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-rw-r--r--COPYRIGHT.txt2
-rw-r--r--modules/freetype/SCsub1
-rw-r--r--thirdparty/README.md8
-rw-r--r--thirdparty/freetype/LICENSE.TXT53
-rw-r--r--thirdparty/freetype/include/freetype/config/ftconfig.h2
-rw-r--r--thirdparty/freetype/include/freetype/config/ftheader.h2
-rw-r--r--thirdparty/freetype/include/freetype/config/ftmodule.h6
-rw-r--r--thirdparty/freetype/include/freetype/config/ftoption.h55
-rw-r--r--thirdparty/freetype/include/freetype/config/ftstdlib.h14
-rw-r--r--thirdparty/freetype/include/freetype/config/integer-types.h40
-rw-r--r--thirdparty/freetype/include/freetype/config/mac-support.h2
-rw-r--r--thirdparty/freetype/include/freetype/config/public-macros.h20
-rw-r--r--thirdparty/freetype/include/freetype/freetype.h343
-rw-r--r--thirdparty/freetype/include/freetype/ftadvanc.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftbbox.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftbdf.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftbitmap.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftbzip2.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftcache.h6
-rw-r--r--thirdparty/freetype/include/freetype/ftchapters.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftcid.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftcolor.h1407
-rw-r--r--thirdparty/freetype/include/freetype/ftdriver.h74
-rw-r--r--thirdparty/freetype/include/freetype/fterrdef.h2
-rw-r--r--thirdparty/freetype/include/freetype/fterrors.h4
-rw-r--r--thirdparty/freetype/include/freetype/ftfntfmt.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftgasp.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftglyph.h16
-rw-r--r--thirdparty/freetype/include/freetype/ftgxval.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftgzip.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftimage.h114
-rw-r--r--thirdparty/freetype/include/freetype/ftincrem.h17
-rw-r--r--thirdparty/freetype/include/freetype/ftlcdfil.h21
-rw-r--r--thirdparty/freetype/include/freetype/ftlist.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftlogging.h184
-rw-r--r--thirdparty/freetype/include/freetype/ftlzw.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftmac.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftmm.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftmodapi.h35
-rw-r--r--thirdparty/freetype/include/freetype/ftmoderr.h3
-rw-r--r--thirdparty/freetype/include/freetype/ftotval.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftoutln.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftparams.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftpfr.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftrender.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftsizes.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftsnames.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftstroke.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftsynth.h2
-rw-r--r--thirdparty/freetype/include/freetype/ftsystem.h2
-rw-r--r--thirdparty/freetype/include/freetype/fttrigon.h2
-rw-r--r--thirdparty/freetype/include/freetype/fttypes.h19
-rw-r--r--thirdparty/freetype/include/freetype/ftwinfnt.h4
-rw-r--r--thirdparty/freetype/include/freetype/internal/autohint.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/cffotypes.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/cfftypes.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/compiler-macros.h152
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftcalc.h45
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftdebug.h171
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftdrv.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftgloadr.h3
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftmemory.h13
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftobjs.h4
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftpsprop.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftrfork.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftserv.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftstream.h32
-rw-r--r--thirdparty/freetype/include/freetype/internal/fttrace.h22
-rw-r--r--thirdparty/freetype/include/freetype/internal/ftvalid.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/internal.h67
-rw-r--r--thirdparty/freetype/include/freetype/internal/psaux.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/pshints.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svbdf.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svcfftl.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svcid.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svfntfmt.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svgldict.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svgxval.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svkern.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svmetric.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svmm.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svotval.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svpfr.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svpostnm.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svprop.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svpscmap.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svpsinfo.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svsfnt.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svttcmap.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svtteng.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svttglyf.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/services/svwinfnt.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/sfnt.h253
-rw-r--r--thirdparty/freetype/include/freetype/internal/t1types.h2
-rw-r--r--thirdparty/freetype/include/freetype/internal/tttypes.h8
-rw-r--r--thirdparty/freetype/include/freetype/internal/wofftypes.h6
-rw-r--r--thirdparty/freetype/include/freetype/t1tables.h10
-rw-r--r--thirdparty/freetype/include/freetype/ttnameid.h4
-rw-r--r--thirdparty/freetype/include/freetype/tttables.h2
-rw-r--r--thirdparty/freetype/include/freetype/tttags.h2
-rw-r--r--thirdparty/freetype/include/ft2build.h2
-rw-r--r--thirdparty/freetype/src/autofit/afangles.c285
-rw-r--r--thirdparty/freetype/src/autofit/afangles.h7
-rw-r--r--thirdparty/freetype/src/autofit/afblue.c2
-rw-r--r--thirdparty/freetype/src/autofit/afblue.cin2
-rw-r--r--thirdparty/freetype/src/autofit/afblue.dat2
-rw-r--r--thirdparty/freetype/src/autofit/afblue.h2
-rw-r--r--thirdparty/freetype/src/autofit/afblue.hin2
-rw-r--r--thirdparty/freetype/src/autofit/afcjk.c66
-rw-r--r--thirdparty/freetype/src/autofit/afcjk.h2
-rw-r--r--thirdparty/freetype/src/autofit/afcover.h2
-rw-r--r--thirdparty/freetype/src/autofit/afdummy.c2
-rw-r--r--thirdparty/freetype/src/autofit/afdummy.h2
-rw-r--r--thirdparty/freetype/src/autofit/aferrors.h2
-rw-r--r--thirdparty/freetype/src/autofit/afglobal.c22
-rw-r--r--thirdparty/freetype/src/autofit/afglobal.h2
-rw-r--r--thirdparty/freetype/src/autofit/afhints.c150
-rw-r--r--thirdparty/freetype/src/autofit/afhints.h17
-rw-r--r--thirdparty/freetype/src/autofit/afindic.c7
-rw-r--r--thirdparty/freetype/src/autofit/afindic.h2
-rw-r--r--thirdparty/freetype/src/autofit/aflatin.c127
-rw-r--r--thirdparty/freetype/src/autofit/aflatin.h2
-rw-r--r--thirdparty/freetype/src/autofit/aflatin2.c2428
-rw-r--r--thirdparty/freetype/src/autofit/aflatin2.h46
-rw-r--r--thirdparty/freetype/src/autofit/afloader.c39
-rw-r--r--thirdparty/freetype/src/autofit/afloader.h4
-rw-r--r--thirdparty/freetype/src/autofit/afmodule.c56
-rw-r--r--thirdparty/freetype/src/autofit/afmodule.h5
-rw-r--r--thirdparty/freetype/src/autofit/afranges.c2
-rw-r--r--thirdparty/freetype/src/autofit/afranges.h2
-rw-r--r--thirdparty/freetype/src/autofit/afscript.h2
-rw-r--r--thirdparty/freetype/src/autofit/afshaper.c57
-rw-r--r--thirdparty/freetype/src/autofit/afshaper.h2
-rw-r--r--thirdparty/freetype/src/autofit/afstyles.h11
-rw-r--r--thirdparty/freetype/src/autofit/aftypes.h65
-rw-r--r--thirdparty/freetype/src/autofit/afwarp.c373
-rw-r--r--thirdparty/freetype/src/autofit/afwarp.h66
-rw-r--r--thirdparty/freetype/src/autofit/afwrtsys.h52
-rw-r--r--thirdparty/freetype/src/autofit/afws-decl.h33
-rw-r--r--thirdparty/freetype/src/autofit/afws-iter.h31
-rw-r--r--thirdparty/freetype/src/autofit/autofit.c5
-rw-r--r--thirdparty/freetype/src/autofit/module.mk23
-rw-r--r--thirdparty/freetype/src/autofit/rules.mk88
-rw-r--r--thirdparty/freetype/src/base/ftadvanc.c2
-rw-r--r--thirdparty/freetype/src/base/ftbase.c2
-rw-r--r--thirdparty/freetype/src/base/ftbase.h2
-rw-r--r--thirdparty/freetype/src/base/ftbbox.c2
-rw-r--r--thirdparty/freetype/src/base/ftbdf.c2
-rw-r--r--thirdparty/freetype/src/base/ftbitmap.c10
-rw-r--r--thirdparty/freetype/src/base/ftcalc.c18
-rw-r--r--thirdparty/freetype/src/base/ftcid.c2
-rw-r--r--thirdparty/freetype/src/base/ftcolor.c2
-rw-r--r--thirdparty/freetype/src/base/ftdbgmem.c94
-rw-r--r--thirdparty/freetype/src/base/ftdebug.c334
-rw-r--r--thirdparty/freetype/src/base/fterrors.c2
-rw-r--r--thirdparty/freetype/src/base/ftfntfmt.c2
-rw-r--r--thirdparty/freetype/src/base/ftfstype.c2
-rw-r--r--thirdparty/freetype/src/base/ftgasp.c2
-rw-r--r--thirdparty/freetype/src/base/ftgloadr.c2
-rw-r--r--thirdparty/freetype/src/base/ftglyph.c20
-rw-r--r--thirdparty/freetype/src/base/ftgxval.c2
-rw-r--r--thirdparty/freetype/src/base/ftinit.c10
-rw-r--r--thirdparty/freetype/src/base/ftlcdfil.c10
-rw-r--r--thirdparty/freetype/src/base/ftmac.c8
-rw-r--r--thirdparty/freetype/src/base/ftmm.c2
-rw-r--r--thirdparty/freetype/src/base/ftobjs.c349
-rw-r--r--thirdparty/freetype/src/base/ftotval.c2
-rw-r--r--thirdparty/freetype/src/base/ftoutln.c2
-rw-r--r--thirdparty/freetype/src/base/ftpatent.c2
-rw-r--r--thirdparty/freetype/src/base/ftpfr.c2
-rw-r--r--thirdparty/freetype/src/base/ftpsprop.c6
-rw-r--r--thirdparty/freetype/src/base/ftrfork.c28
-rw-r--r--thirdparty/freetype/src/base/ftsnames.c6
-rw-r--r--thirdparty/freetype/src/base/ftstream.c85
-rw-r--r--thirdparty/freetype/src/base/ftstroke.c47
-rw-r--r--thirdparty/freetype/src/base/ftsynth.c2
-rw-r--r--thirdparty/freetype/src/base/ftsystem.c4
-rw-r--r--thirdparty/freetype/src/base/fttrigon.c8
-rw-r--r--thirdparty/freetype/src/base/fttype1.c2
-rw-r--r--thirdparty/freetype/src/base/ftutil.c2
-rw-r--r--thirdparty/freetype/src/base/ftver.rc8
-rw-r--r--thirdparty/freetype/src/base/ftwinfnt.c2
-rw-r--r--thirdparty/freetype/src/base/rules.mk108
-rw-r--r--thirdparty/freetype/src/bdf/bdfdrivr.c10
-rw-r--r--thirdparty/freetype/src/bdf/bdflib.c190
-rw-r--r--thirdparty/freetype/src/bdf/module.mk34
-rw-r--r--thirdparty/freetype/src/bdf/rules.mk84
-rw-r--r--thirdparty/freetype/src/bzip2/ftbzip2.c11
-rw-r--r--thirdparty/freetype/src/bzip2/rules.mk64
-rw-r--r--thirdparty/freetype/src/cache/ftcache.c2
-rw-r--r--thirdparty/freetype/src/cache/ftcbasic.c12
-rw-r--r--thirdparty/freetype/src/cache/ftccache.c26
-rw-r--r--thirdparty/freetype/src/cache/ftccache.h4
-rw-r--r--thirdparty/freetype/src/cache/ftccback.h2
-rw-r--r--thirdparty/freetype/src/cache/ftccmap.c9
-rw-r--r--thirdparty/freetype/src/cache/ftcerror.h2
-rw-r--r--thirdparty/freetype/src/cache/ftcglyph.c2
-rw-r--r--thirdparty/freetype/src/cache/ftcglyph.h2
-rw-r--r--thirdparty/freetype/src/cache/ftcimage.c2
-rw-r--r--thirdparty/freetype/src/cache/ftcimage.h2
-rw-r--r--thirdparty/freetype/src/cache/ftcmanag.c12
-rw-r--r--thirdparty/freetype/src/cache/ftcmanag.h2
-rw-r--r--thirdparty/freetype/src/cache/ftcmru.c4
-rw-r--r--thirdparty/freetype/src/cache/ftcmru.h2
-rw-r--r--thirdparty/freetype/src/cache/ftcsbits.c37
-rw-r--r--thirdparty/freetype/src/cache/ftcsbits.h2
-rw-r--r--thirdparty/freetype/src/cache/rules.mk85
-rw-r--r--thirdparty/freetype/src/cff/cff.c2
-rw-r--r--thirdparty/freetype/src/cff/cffcmap.c2
-rw-r--r--thirdparty/freetype/src/cff/cffcmap.h2
-rw-r--r--thirdparty/freetype/src/cff/cffdrivr.c24
-rw-r--r--thirdparty/freetype/src/cff/cffdrivr.h2
-rw-r--r--thirdparty/freetype/src/cff/cfferrs.h2
-rw-r--r--thirdparty/freetype/src/cff/cffgload.c6
-rw-r--r--thirdparty/freetype/src/cff/cffgload.h2
-rw-r--r--thirdparty/freetype/src/cff/cffload.c110
-rw-r--r--thirdparty/freetype/src/cff/cffload.h2
-rw-r--r--thirdparty/freetype/src/cff/cffobjs.c31
-rw-r--r--thirdparty/freetype/src/cff/cffobjs.h2
-rw-r--r--thirdparty/freetype/src/cff/cffparse.c12
-rw-r--r--thirdparty/freetype/src/cff/cffparse.h2
-rw-r--r--thirdparty/freetype/src/cff/cfftoken.h2
-rw-r--r--thirdparty/freetype/src/cff/module.mk23
-rw-r--r--thirdparty/freetype/src/cff/rules.mk75
-rw-r--r--thirdparty/freetype/src/cid/ciderrs.h2
-rw-r--r--thirdparty/freetype/src/cid/cidgload.c42
-rw-r--r--thirdparty/freetype/src/cid/cidgload.h2
-rw-r--r--thirdparty/freetype/src/cid/cidload.c126
-rw-r--r--thirdparty/freetype/src/cid/cidload.h4
-rw-r--r--thirdparty/freetype/src/cid/cidobjs.c17
-rw-r--r--thirdparty/freetype/src/cid/cidobjs.h2
-rw-r--r--thirdparty/freetype/src/cid/cidparse.c8
-rw-r--r--thirdparty/freetype/src/cid/cidparse.h4
-rw-r--r--thirdparty/freetype/src/cid/cidriver.c2
-rw-r--r--thirdparty/freetype/src/cid/cidriver.h2
-rw-r--r--thirdparty/freetype/src/cid/cidtoken.h2
-rw-r--r--thirdparty/freetype/src/cid/module.mk23
-rw-r--r--thirdparty/freetype/src/cid/rules.mk73
-rw-r--r--thirdparty/freetype/src/cid/type1cid.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/README2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvalid.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvalid.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvbsln.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvcommn.c59
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvcommn.h37
-rw-r--r--thirdparty/freetype/src/gxvalid/gxverror.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvfeat.c4
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvfeat.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvfgen.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvjust.c23
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvkern.c14
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvlcar.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmod.c50
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmod.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort.c4
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort0.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort1.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort2.c14
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort4.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmort5.c4
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx.c8
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx.h2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx0.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx1.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx2.c30
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx4.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvmorx5.c2
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvopbd.c4
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvprop.c6
-rw-r--r--thirdparty/freetype/src/gxvalid/gxvtrak.c6
-rw-r--r--thirdparty/freetype/src/gxvalid/module.mk23
-rw-r--r--thirdparty/freetype/src/gxvalid/rules.mk98
-rw-r--r--thirdparty/freetype/src/gzip/ftgzip.c42
-rw-r--r--thirdparty/freetype/src/gzip/rules.mk83
-rw-r--r--thirdparty/freetype/src/lzw/ftlzw.c4
-rw-r--r--thirdparty/freetype/src/lzw/ftzopen.c9
-rw-r--r--thirdparty/freetype/src/lzw/ftzopen.h2
-rw-r--r--thirdparty/freetype/src/lzw/rules.mk72
-rw-r--r--thirdparty/freetype/src/otvalid/module.mk23
-rw-r--r--thirdparty/freetype/src/otvalid/otvalid.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvalid.h2
-rw-r--r--thirdparty/freetype/src/otvalid/otvbase.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvcommn.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvcommn.h40
-rw-r--r--thirdparty/freetype/src/otvalid/otverror.h2
-rw-r--r--thirdparty/freetype/src/otvalid/otvgdef.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvgpos.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvgpos.h2
-rw-r--r--thirdparty/freetype/src/otvalid/otvgsub.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvjstf.c2
-rw-r--r--thirdparty/freetype/src/otvalid/otvmath.c4
-rw-r--r--thirdparty/freetype/src/otvalid/otvmod.c6
-rw-r--r--thirdparty/freetype/src/otvalid/otvmod.h2
-rw-r--r--thirdparty/freetype/src/otvalid/rules.mk81
-rw-r--r--thirdparty/freetype/src/pcf/module.mk34
-rw-r--r--thirdparty/freetype/src/pcf/pcfdrivr.c6
-rw-r--r--thirdparty/freetype/src/pcf/pcfread.c85
-rw-r--r--thirdparty/freetype/src/pcf/rules.mk82
-rw-r--r--thirdparty/freetype/src/pfr/module.mk23
-rw-r--r--thirdparty/freetype/src/pfr/pfr.c2
-rw-r--r--thirdparty/freetype/src/pfr/pfrcmap.c2
-rw-r--r--thirdparty/freetype/src/pfr/pfrcmap.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrdrivr.c2
-rw-r--r--thirdparty/freetype/src/pfr/pfrdrivr.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrerror.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrgload.c2
-rw-r--r--thirdparty/freetype/src/pfr/pfrgload.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrload.c10
-rw-r--r--thirdparty/freetype/src/pfr/pfrload.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrobjs.c8
-rw-r--r--thirdparty/freetype/src/pfr/pfrobjs.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrsbit.c10
-rw-r--r--thirdparty/freetype/src/pfr/pfrsbit.h2
-rw-r--r--thirdparty/freetype/src/pfr/pfrtypes.h4
-rw-r--r--thirdparty/freetype/src/pfr/rules.mk76
-rw-r--r--thirdparty/freetype/src/psaux/afmparse.c130
-rw-r--r--thirdparty/freetype/src/psaux/afmparse.h2
-rw-r--r--thirdparty/freetype/src/psaux/cffdecode.c33
-rw-r--r--thirdparty/freetype/src/psaux/cffdecode.h2
-rw-r--r--thirdparty/freetype/src/psaux/module.mk23
-rw-r--r--thirdparty/freetype/src/psaux/psarrst.c7
-rw-r--r--thirdparty/freetype/src/psaux/psarrst.h1
-rw-r--r--thirdparty/freetype/src/psaux/psaux.c2
-rw-r--r--thirdparty/freetype/src/psaux/psauxerr.h2
-rw-r--r--thirdparty/freetype/src/psaux/psauxmod.c2
-rw-r--r--thirdparty/freetype/src/psaux/psauxmod.h2
-rw-r--r--thirdparty/freetype/src/psaux/psblues.c3
-rw-r--r--thirdparty/freetype/src/psaux/psconv.c2
-rw-r--r--thirdparty/freetype/src/psaux/psconv.h2
-rw-r--r--thirdparty/freetype/src/psaux/psft.c6
-rw-r--r--thirdparty/freetype/src/psaux/pshints.c60
-rw-r--r--thirdparty/freetype/src/psaux/psintrp.c57
-rw-r--r--thirdparty/freetype/src/psaux/psintrp.h2
-rw-r--r--thirdparty/freetype/src/psaux/psobjs.c26
-rw-r--r--thirdparty/freetype/src/psaux/psobjs.h2
-rw-r--r--thirdparty/freetype/src/psaux/psstack.c8
-rw-r--r--thirdparty/freetype/src/psaux/rules.mk89
-rw-r--r--thirdparty/freetype/src/psaux/t1cmap.c2
-rw-r--r--thirdparty/freetype/src/psaux/t1cmap.h2
-rw-r--r--thirdparty/freetype/src/psaux/t1decode.c33
-rw-r--r--thirdparty/freetype/src/psaux/t1decode.h2
-rw-r--r--thirdparty/freetype/src/pshinter/module.mk23
-rw-r--r--thirdparty/freetype/src/pshinter/pshalgo.c100
-rw-r--r--thirdparty/freetype/src/pshinter/pshalgo.h32
-rw-r--r--thirdparty/freetype/src/pshinter/pshglob.c2
-rw-r--r--thirdparty/freetype/src/pshinter/pshglob.h2
-rw-r--r--thirdparty/freetype/src/pshinter/pshinter.c2
-rw-r--r--thirdparty/freetype/src/pshinter/pshmod.c2
-rw-r--r--thirdparty/freetype/src/pshinter/pshmod.h2
-rw-r--r--thirdparty/freetype/src/pshinter/pshnterr.h2
-rw-r--r--thirdparty/freetype/src/pshinter/pshrec.c19
-rw-r--r--thirdparty/freetype/src/pshinter/pshrec.h2
-rw-r--r--thirdparty/freetype/src/pshinter/rules.mk75
-rw-r--r--thirdparty/freetype/src/psnames/module.mk23
-rw-r--r--thirdparty/freetype/src/psnames/psmodule.c42
-rw-r--r--thirdparty/freetype/src/psnames/psmodule.h2
-rw-r--r--thirdparty/freetype/src/psnames/psnamerr.h2
-rw-r--r--thirdparty/freetype/src/psnames/psnames.c2
-rw-r--r--thirdparty/freetype/src/psnames/pstables.h2
-rw-r--r--thirdparty/freetype/src/psnames/rules.mk73
-rw-r--r--thirdparty/freetype/src/raster/ftmisc.h9
-rw-r--r--thirdparty/freetype/src/raster/ftraster.c323
-rw-r--r--thirdparty/freetype/src/raster/ftraster.h2
-rw-r--r--thirdparty/freetype/src/raster/ftrend1.c2
-rw-r--r--thirdparty/freetype/src/raster/ftrend1.h2
-rw-r--r--thirdparty/freetype/src/raster/module.mk23
-rw-r--r--thirdparty/freetype/src/raster/raster.c2
-rw-r--r--thirdparty/freetype/src/raster/rasterrs.h2
-rw-r--r--thirdparty/freetype/src/raster/rules.mk72
-rw-r--r--thirdparty/freetype/src/sdf/ftbsdf.c1347
-rw-r--r--thirdparty/freetype/src/sdf/ftsdf.c3872
-rw-r--r--thirdparty/freetype/src/sdf/ftsdf.h97
-rw-r--r--thirdparty/freetype/src/sdf/ftsdfcommon.c147
-rw-r--r--thirdparty/freetype/src/sdf/ftsdfcommon.h139
-rw-r--r--thirdparty/freetype/src/sdf/ftsdferrs.h37
-rw-r--r--thirdparty/freetype/src/sdf/ftsdfrend.c614
-rw-r--r--thirdparty/freetype/src/sdf/ftsdfrend.h118
-rw-r--r--thirdparty/freetype/src/sdf/sdf.c29
-rw-r--r--thirdparty/freetype/src/sfnt/module.mk23
-rw-r--r--thirdparty/freetype/src/sfnt/pngshim.c13
-rw-r--r--thirdparty/freetype/src/sfnt/pngshim.h2
-rw-r--r--thirdparty/freetype/src/sfnt/rules.mk85
-rw-r--r--thirdparty/freetype/src/sfnt/sfdriver.c43
-rw-r--r--thirdparty/freetype/src/sfnt/sfdriver.h2
-rw-r--r--thirdparty/freetype/src/sfnt/sferrors.h2
-rw-r--r--thirdparty/freetype/src/sfnt/sfnt.c2
-rw-r--r--thirdparty/freetype/src/sfnt/sfobjs.c39
-rw-r--r--thirdparty/freetype/src/sfnt/sfobjs.h2
-rw-r--r--thirdparty/freetype/src/sfnt/sfwoff.c35
-rw-r--r--thirdparty/freetype/src/sfnt/sfwoff.h5
-rw-r--r--thirdparty/freetype/src/sfnt/sfwoff2.c76
-rw-r--r--thirdparty/freetype/src/sfnt/sfwoff2.h4
-rw-r--r--thirdparty/freetype/src/sfnt/ttbdf.c2
-rw-r--r--thirdparty/freetype/src/sfnt/ttbdf.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttcmap.c12
-rw-r--r--thirdparty/freetype/src/sfnt/ttcmap.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttcmapc.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttcolr.c877
-rw-r--r--thirdparty/freetype/src/sfnt/ttcolr.h28
-rw-r--r--thirdparty/freetype/src/sfnt/ttcpal.c2
-rw-r--r--thirdparty/freetype/src/sfnt/ttcpal.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttkern.c2
-rw-r--r--thirdparty/freetype/src/sfnt/ttkern.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttload.c89
-rw-r--r--thirdparty/freetype/src/sfnt/ttload.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttmtx.c2
-rw-r--r--thirdparty/freetype/src/sfnt/ttmtx.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttpost.c111
-rw-r--r--thirdparty/freetype/src/sfnt/ttpost.h2
-rw-r--r--thirdparty/freetype/src/sfnt/ttsbit.c22
-rw-r--r--thirdparty/freetype/src/sfnt/ttsbit.h2
-rw-r--r--thirdparty/freetype/src/sfnt/woff2tags.c16
-rw-r--r--thirdparty/freetype/src/sfnt/woff2tags.h8
-rw-r--r--thirdparty/freetype/src/smooth/ftgrays.c827
-rw-r--r--thirdparty/freetype/src/smooth/ftgrays.h2
-rw-r--r--thirdparty/freetype/src/smooth/ftsmerrs.h2
-rw-r--r--thirdparty/freetype/src/smooth/ftsmooth.c2
-rw-r--r--thirdparty/freetype/src/smooth/ftsmooth.h2
-rw-r--r--thirdparty/freetype/src/smooth/module.mk23
-rw-r--r--thirdparty/freetype/src/smooth/rules.mk73
-rw-r--r--thirdparty/freetype/src/smooth/smooth.c2
-rw-r--r--thirdparty/freetype/src/truetype/module.mk23
-rw-r--r--thirdparty/freetype/src/truetype/rules.mk76
-rw-r--r--thirdparty/freetype/src/truetype/truetype.c2
-rw-r--r--thirdparty/freetype/src/truetype/ttdriver.c18
-rw-r--r--thirdparty/freetype/src/truetype/ttdriver.h2
-rw-r--r--thirdparty/freetype/src/truetype/tterrors.h2
-rw-r--r--thirdparty/freetype/src/truetype/ttgload.c69
-rw-r--r--thirdparty/freetype/src/truetype/ttgload.h2
-rw-r--r--thirdparty/freetype/src/truetype/ttgxvar.c304
-rw-r--r--thirdparty/freetype/src/truetype/ttgxvar.h8
-rw-r--r--thirdparty/freetype/src/truetype/ttinterp.c192
-rw-r--r--thirdparty/freetype/src/truetype/ttinterp.h97
-rw-r--r--thirdparty/freetype/src/truetype/ttobjs.c92
-rw-r--r--thirdparty/freetype/src/truetype/ttobjs.h2
-rw-r--r--thirdparty/freetype/src/truetype/ttpload.c83
-rw-r--r--thirdparty/freetype/src/truetype/ttpload.h2
-rw-r--r--thirdparty/freetype/src/truetype/ttsubpix.c8
-rw-r--r--thirdparty/freetype/src/truetype/ttsubpix.h2
-rw-r--r--thirdparty/freetype/src/type1/module.mk23
-rw-r--r--thirdparty/freetype/src/type1/rules.mk76
-rw-r--r--thirdparty/freetype/src/type1/t1afm.c4
-rw-r--r--thirdparty/freetype/src/type1/t1afm.h2
-rw-r--r--thirdparty/freetype/src/type1/t1driver.c2
-rw-r--r--thirdparty/freetype/src/type1/t1driver.h2
-rw-r--r--thirdparty/freetype/src/type1/t1errors.h2
-rw-r--r--thirdparty/freetype/src/type1/t1gload.c4
-rw-r--r--thirdparty/freetype/src/type1/t1gload.h2
-rw-r--r--thirdparty/freetype/src/type1/t1load.c112
-rw-r--r--thirdparty/freetype/src/type1/t1load.h2
-rw-r--r--thirdparty/freetype/src/type1/t1objs.c16
-rw-r--r--thirdparty/freetype/src/type1/t1objs.h2
-rw-r--r--thirdparty/freetype/src/type1/t1parse.c10
-rw-r--r--thirdparty/freetype/src/type1/t1parse.h2
-rw-r--r--thirdparty/freetype/src/type1/t1tokens.h2
-rw-r--r--thirdparty/freetype/src/type1/type1.c2
-rw-r--r--thirdparty/freetype/src/type42/module.mk23
-rw-r--r--thirdparty/freetype/src/type42/rules.mk73
-rw-r--r--thirdparty/freetype/src/type42/t42drivr.c2
-rw-r--r--thirdparty/freetype/src/type42/t42drivr.h2
-rw-r--r--thirdparty/freetype/src/type42/t42error.h2
-rw-r--r--thirdparty/freetype/src/type42/t42objs.c18
-rw-r--r--thirdparty/freetype/src/type42/t42objs.h2
-rw-r--r--thirdparty/freetype/src/type42/t42parse.c31
-rw-r--r--thirdparty/freetype/src/type42/t42parse.h2
-rw-r--r--thirdparty/freetype/src/type42/t42types.h2
-rw-r--r--thirdparty/freetype/src/type42/type42.c2
-rw-r--r--thirdparty/freetype/src/winfonts/fnterrs.h2
-rw-r--r--thirdparty/freetype/src/winfonts/module.mk23
-rw-r--r--thirdparty/freetype/src/winfonts/rules.mk68
-rw-r--r--thirdparty/freetype/src/winfonts/winfnt.c32
-rw-r--r--thirdparty/freetype/src/winfonts/winfnt.h2
473 files changed, 13800 insertions, 8978 deletions
diff --git a/COPYRIGHT.txt b/COPYRIGHT.txt
index eb5f619b87..8ea5ee24e6 100644
--- a/COPYRIGHT.txt
+++ b/COPYRIGHT.txt
@@ -184,7 +184,7 @@ License: Expat and Bitstream Vera Fonts Copyright
Files: ./thirdparty/freetype/
Comment: The FreeType Project
-Copyright: 1996-2020, David Turner, Robert Wilhelm, and Werner Lemberg.
+Copyright: 1996-2021, David Turner, Robert Wilhelm, and Werner Lemberg.
License: FTL
Files: ./thirdparty/glslang/
diff --git a/modules/freetype/SCsub b/modules/freetype/SCsub
index 476cb9cf2a..27d0777c17 100644
--- a/modules/freetype/SCsub
+++ b/modules/freetype/SCsub
@@ -48,6 +48,7 @@ if env["builtin_freetype"]:
"src/pshinter/pshinter.c",
"src/psnames/psnames.c",
"src/raster/raster.c",
+ "src/sdf/sdf.c",
"src/smooth/smooth.c",
"src/truetype/truetype.c",
"src/type1/type1.c",
diff --git a/thirdparty/README.md b/thirdparty/README.md
index 239ea940ca..dd49d80f50 100644
--- a/thirdparty/README.md
+++ b/thirdparty/README.md
@@ -155,14 +155,14 @@ Files extracted from upstream source:
## freetype
- Upstream: https://www.freetype.org
-- Version: 2.10.4 (6a2b3e4007e794bfc6c91030d0ed987f925164a8, 2020)
+- Version: 2.11.1 (3f83daeecb1a78d851b660eed025eeba362c0e4a, 2021)
- License: FreeType License (BSD-like)
Files extracted from upstream source:
-- the `src/` folder, stripped of the `Jamfile` files and the `tools` subfolder
-- the `include/` folder
-- `docs/{FTL.TXT,LICENSE.TXT}`
+- the `src/` folder, minus the `.mk` files and the `dlg` and `tools` subfolders
+- the `include/` folder, minus the `dlg` subfolder
+- `LICENSE.TXT` and `docs/FTL.TXT`
## glslang
diff --git a/thirdparty/freetype/LICENSE.TXT b/thirdparty/freetype/LICENSE.TXT
index af5a1c50f6..b1def65dd6 100644
--- a/thirdparty/freetype/LICENSE.TXT
+++ b/thirdparty/freetype/LICENSE.TXT
@@ -1,39 +1,42 @@
+FREETYPE LICENSES
+-----------------
-The FreeType 2 font engine is copyrighted work and cannot be used
-legally without a software license. In order to make this project
-usable to a vast majority of developers, we distribute it under two
+The FreeType 2 font engine is copyrighted work and cannot be used
+legally without a software license. In order to make this project
+usable to a vast majority of developers, we distribute it under two
mutually exclusive open-source licenses.
-This means that *you* must choose *one* of the two licenses described
-below, then obey all its terms and conditions when using FreeType 2 in
+This means that *you* must choose *one* of the two licenses described
+below, then obey all its terms and conditions when using FreeType 2 in
any of your projects or products.
- - The FreeType License, found in the file `FTL.TXT', which is similar
- to the original BSD license *with* an advertising clause that forces
- you to explicitly cite the FreeType project in your product's
- documentation. All details are in the license file. This license
- is suited to products which don't use the GNU General Public
- License.
+ - The FreeType License, found in the file `docs/FTL.TXT`, which is
+ similar to the original BSD license *with* an advertising clause
+ that forces you to explicitly cite the FreeType project in your
+ product's documentation. All details are in the license file.
+ This license is suited to products which don't use the GNU General
+ Public License.
- Note that this license is compatible to the GNU General Public
+ Note that this license is compatible to the GNU General Public
License version 3, but not version 2.
- - The GNU General Public License version 2, found in `GPLv2.TXT' (any
- later version can be used also), for programs which already use the
- GPL. Note that the FTL is incompatible with GPLv2 due to its
- advertisement clause.
+ - The GNU General Public License version 2, found in
+ `docs/GPLv2.TXT` (any later version can be used also), for
+ programs which already use the GPL. Note that the FTL is
+ incompatible with GPLv2 due to its advertisement clause.
-The contributed BDF and PCF drivers come with a license similar to that
-of the X Window System. It is compatible to the above two licenses (see
-file src/bdf/README and src/pcf/README). The same holds for the files
-`fthash.c' and `fthash.h'; their code was part of the BDF driver in
-earlier FreeType versions.
+The contributed BDF and PCF drivers come with a license similar to
+that of the X Window System. It is compatible to the above two
+licenses (see files `src/bdf/README` and `src/pcf/README`). The same
+holds for the source code files `src/base/fthash.c` and
+`include/freetype/internal/fthash.h`; they wer part of the BDF driver
+in earlier FreeType versions.
-The gzip module uses the zlib license (see src/gzip/zlib.h) which too is
-compatible to the above two licenses.
+The gzip module uses the zlib license (see `src/gzip/zlib.h`) which
+too is compatible to the above two licenses.
-The MD5 checksum support (only used for debugging in development builds)
-is in the public domain.
+The MD5 checksum support (only used for debugging in development
+builds) is in the public domain.
--- end of LICENSE.TXT ---
diff --git a/thirdparty/freetype/include/freetype/config/ftconfig.h b/thirdparty/freetype/include/freetype/config/ftconfig.h
index b464e0b789..65effcbe63 100644
--- a/thirdparty/freetype/include/freetype/config/ftconfig.h
+++ b/thirdparty/freetype/include/freetype/config/ftconfig.h
@@ -4,7 +4,7 @@
*
* ANSI-specific configuration file (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/config/ftheader.h b/thirdparty/freetype/include/freetype/config/ftheader.h
index 28b5cc60cf..e46d314e33 100644
--- a/thirdparty/freetype/include/freetype/config/ftheader.h
+++ b/thirdparty/freetype/include/freetype/config/ftheader.h
@@ -4,7 +4,7 @@
*
* Build macros of the FreeType 2 library.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/config/ftmodule.h b/thirdparty/freetype/include/freetype/config/ftmodule.h
index b5c4b1ee58..d4ba3f784d 100644
--- a/thirdparty/freetype/include/freetype/config/ftmodule.h
+++ b/thirdparty/freetype/include/freetype/config/ftmodule.h
@@ -19,12 +19,14 @@ FT_USE_MODULE( FT_Driver_ClassRec, pfr_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, t42_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, winfnt_driver_class )
FT_USE_MODULE( FT_Driver_ClassRec, pcf_driver_class )
+FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
FT_USE_MODULE( FT_Module_Class, psaux_module_class )
FT_USE_MODULE( FT_Module_Class, psnames_module_class )
FT_USE_MODULE( FT_Module_Class, pshinter_module_class )
-FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
FT_USE_MODULE( FT_Module_Class, sfnt_module_class )
FT_USE_MODULE( FT_Renderer_Class, ft_smooth_renderer_class )
-FT_USE_MODULE( FT_Driver_ClassRec, bdf_driver_class )
+FT_USE_MODULE( FT_Renderer_Class, ft_raster1_renderer_class )
+FT_USE_MODULE( FT_Renderer_Class, ft_sdf_renderer_class )
+FT_USE_MODULE( FT_Renderer_Class, ft_bitmap_sdf_renderer_class )
/* EOF */
diff --git a/thirdparty/freetype/include/freetype/config/ftoption.h b/thirdparty/freetype/include/freetype/config/ftoption.h
index 097f19b8a5..4227fd376e 100644
--- a/thirdparty/freetype/include/freetype/config/ftoption.h
+++ b/thirdparty/freetype/include/freetype/config/ftoption.h
@@ -4,7 +4,7 @@
*
* User-selectable configuration macros (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -105,8 +105,7 @@ FT_BEGIN_HEADER
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
- * cff:no-stem-darkening=1 \
- * autofitter:warping=1
+ * cff:no-stem-darkening=1
* ```
*
*/
@@ -433,6 +432,23 @@ FT_BEGIN_HEADER
/**************************************************************************
*
+ * Logging
+ *
+ * Compiling FreeType in debug or trace mode makes FreeType write error
+ * and trace log messages to `stderr`. Enabling this macro
+ * automatically forces the `FT_DEBUG_LEVEL_ERROR` and
+ * `FT_DEBUG_LEVEL_TRACE` macros and allows FreeType to write error and
+ * trace log messages to a file instead of `stderr`. For writing logs
+ * to a file, FreeType uses an the external `dlg` library (the source
+ * code is in `src/dlg`).
+ *
+ * This option needs a C99 compiler.
+ */
+/* #define FT_DEBUG_LOGGING */
+
+
+ /**************************************************************************
+ *
* Autofitter debugging
*
* If `FT_DEBUG_AUTOFIT` is defined, FreeType provides some means to
@@ -894,24 +910,6 @@ FT_BEGIN_HEADER
/**************************************************************************
*
- * Compile 'autofit' module with warp hinting. The idea of the warping
- * code is to slightly scale and shift a glyph within a single dimension so
- * that as much of its segments are aligned (more or less) on the grid. To
- * find out the optimal scaling and shifting value, various parameter
- * combinations are tried and scored.
- *
- * You can switch warping on and off with the `warping` property of the
- * auto-hinter (see file `ftdriver.h` for more information; by default it
- * is switched off).
- *
- * This experimental option is not active if the rendering mode is
- * `FT_RENDER_MODE_LIGHT`.
- */
-#define AF_CONFIG_OPTION_USE_WARPER
-
-
- /**************************************************************************
- *
* Use TrueType-like size metrics for 'light' auto-hinting.
*
* It is strongly recommended to avoid this option, which exists only to
@@ -962,6 +960,21 @@ FT_BEGIN_HEADER
/*
+ * The TT_SUPPORT_COLRV1 macro is defined to indicate to clients that this
+ * version of FreeType has support for 'COLR' v1 API. This definition is
+ * useful to FreeType clients that want to build in support for 'COLR' v1
+ * depending on a tip-of-tree checkout before it is officially released in
+ * FreeType, and while the feature cannot yet be tested against using
+ * version macros. Don't change this macro. This may be removed once the
+ * feature is in a FreeType release version and version macros can be used
+ * to test for availability.
+ */
+#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
+#define TT_SUPPORT_COLRV1
+#endif
+
+
+ /*
* Check CFF darkening parameters. The checks are the same as in function
* `cff_property_set` in file `cffdrivr.c`.
*/
diff --git a/thirdparty/freetype/include/freetype/config/ftstdlib.h b/thirdparty/freetype/include/freetype/config/ftstdlib.h
index d6091f8b3d..6ee412a074 100644
--- a/thirdparty/freetype/include/freetype/config/ftstdlib.h
+++ b/thirdparty/freetype/include/freetype/config/ftstdlib.h
@@ -5,7 +5,7 @@
* ANSI-specific library and header configuration file (specification
* only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -43,7 +43,8 @@
*
* `UINT_MAX` and `ULONG_MAX` are used to automatically compute the size of
* `int` and `long` in bytes at compile-time. So far, this works for all
- * platforms the library has been tested on.
+ * platforms the library has been tested on. We also check `ULLONG_MAX`
+ * to see whether we can use 64-bit `long long` later on.
*
* Note that on the extremely rare platforms that do not provide integer
* types that are _exactly_ 16 and 32~bits wide (e.g., some old Crays where
@@ -66,6 +67,15 @@
#define FT_LONG_MIN LONG_MIN
#define FT_LONG_MAX LONG_MAX
#define FT_ULONG_MAX ULONG_MAX
+#ifdef LLONG_MAX
+#define FT_LLONG_MAX LLONG_MAX
+#endif
+#ifdef LLONG_MIN
+#define FT_LLONG_MIN LLONG_MIN
+#endif
+#ifdef ULLONG_MAX
+#define FT_ULLONG_MAX ULLONG_MAX
+#endif
/**************************************************************************
diff --git a/thirdparty/freetype/include/freetype/config/integer-types.h b/thirdparty/freetype/include/freetype/config/integer-types.h
index a0ca0c95e2..5ef09f1978 100644
--- a/thirdparty/freetype/include/freetype/config/integer-types.h
+++ b/thirdparty/freetype/include/freetype/config/integer-types.h
@@ -4,7 +4,7 @@
*
* FreeType integer types definitions.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -60,6 +60,18 @@
#endif /* !defined(FT_SIZEOF_LONG) */
+#ifndef FT_SIZEOF_LONG_LONG
+
+ /* The size of a `long long` type if available */
+#if defined( FT_ULLONG_MAX ) && FT_ULLONG_MAX >= 0xFFFFFFFFFFFFFFFFULL
+#define FT_SIZEOF_LONG_LONG ( 64 / FT_CHAR_BIT )
+#else
+#define FT_SIZEOF_LONG_LONG 0
+#endif
+
+#endif /* !defined(FT_SIZEOF_LONG_LONG) */
+
+
/**************************************************************************
*
* @section:
@@ -174,15 +186,17 @@
#endif
- /* determine whether we have a 64-bit `int` type for platforms without */
- /* Autoconf */
+ /* determine whether we have a 64-bit integer type */
#if FT_SIZEOF_LONG == ( 64 / FT_CHAR_BIT )
- /* `FT_LONG64` must be defined if a 64-bit type is available */
-#define FT_LONG64
#define FT_INT64 long
#define FT_UINT64 unsigned long
+#elif FT_SIZEOF_LONG_LONG >= ( 64 / FT_CHAR_BIT )
+
+#define FT_INT64 long long int
+#define FT_UINT64 unsigned long long int
+
/**************************************************************************
*
* A 64-bit data type may create compilation problems if you compile in
@@ -192,16 +206,9 @@
*/
#elif !defined( __STDC__ ) || defined( FT_CONFIG_OPTION_FORCE_INT64 )
-#if defined( __STDC_VERSION__ ) && __STDC_VERSION__ >= 199901L
-
-#define FT_LONG64
-#define FT_INT64 long long int
-#define FT_UINT64 unsigned long long int
-
-#elif defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
+#if defined( _MSC_VER ) && _MSC_VER >= 900 /* Visual C++ (and Intel C++) */
/* this compiler provides the `__int64` type */
-#define FT_LONG64
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
@@ -211,7 +218,6 @@
/* to test the compiler version. */
/* this compiler provides the `__int64` type */
-#define FT_LONG64
#define FT_INT64 __int64
#define FT_UINT64 unsigned __int64
@@ -221,22 +227,20 @@
#elif defined( __MWERKS__ ) /* Metrowerks CodeWarrior */
-#define FT_LONG64
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
#elif defined( __GNUC__ )
/* GCC provides the `long long` type */
-#define FT_LONG64
#define FT_INT64 long long int
#define FT_UINT64 unsigned long long int
-#endif /* __STDC_VERSION__ >= 199901L */
+#endif /* !__STDC__ */
#endif /* FT_SIZEOF_LONG == (64 / FT_CHAR_BIT) */
-#ifdef FT_LONG64
+#ifdef FT_INT64
typedef FT_INT64 FT_Int64;
typedef FT_UINT64 FT_UInt64;
#endif
diff --git a/thirdparty/freetype/include/freetype/config/mac-support.h b/thirdparty/freetype/include/freetype/config/mac-support.h
index 94867088e9..ef58d8b3f0 100644
--- a/thirdparty/freetype/include/freetype/config/mac-support.h
+++ b/thirdparty/freetype/include/freetype/config/mac-support.h
@@ -4,7 +4,7 @@
*
* Mac/OS X support configuration header.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/config/public-macros.h b/thirdparty/freetype/include/freetype/config/public-macros.h
index 6aa673e807..9fbb3274a0 100644
--- a/thirdparty/freetype/include/freetype/config/public-macros.h
+++ b/thirdparty/freetype/include/freetype/config/public-macros.h
@@ -4,7 +4,7 @@
*
* Define a set of compiler macros used in public FreeType headers.
*
- * Copyright (C) 2020 by
+ * Copyright (C) 2020-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -103,6 +103,7 @@ FT_BEGIN_HEADER
*/
#define FT_EXPORT( x ) FT_PUBLIC_FUNCTION_ATTRIBUTE extern x
+
/*
* `FT_UNUSED` indicates that a given parameter is not used -- this is
* only used to get rid of unpleasant compiler warnings.
@@ -115,6 +116,23 @@ FT_BEGIN_HEADER
#endif
+ /*
+ * Support for casts in both C and C++.
+ */
+#ifdef __cplusplus
+#define FT_STATIC_CAST( type, var ) static_cast<type>(var)
+#define FT_REINTERPRET_CAST( type, var ) reinterpret_cast<type>(var)
+
+#define FT_STATIC_BYTE_CAST( type, var ) \
+ static_cast<type>( static_cast<unsigned char>( var ) )
+#else
+#define FT_STATIC_CAST( type, var ) (type)(var)
+#define FT_REINTERPRET_CAST( type, var ) (type)(var)
+
+#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var)
+#endif
+
+
FT_END_HEADER
#endif /* FREETYPE_CONFIG_PUBLIC_MACROS_H_ */
diff --git a/thirdparty/freetype/include/freetype/freetype.h b/thirdparty/freetype/include/freetype/freetype.h
index be191f5aa0..f6c66b94ae 100644
--- a/thirdparty/freetype/include/freetype/freetype.h
+++ b/thirdparty/freetype/include/freetype/freetype.h
@@ -4,7 +4,7 @@
*
* FreeType high-level API and common types (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -33,6 +33,34 @@ FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
+ * preamble
+ *
+ * @title:
+ * Preamble
+ *
+ * @abstract:
+ * What FreeType is and isn't
+ *
+ * @description:
+ * FreeType is a library that provides access to glyphs in font files. It
+ * scales the glyph images and their metrics to a requested size, and it
+ * rasterizes the glyph images to produce pixel or subpixel alpha coverage
+ * bitmaps.
+ *
+ * Note that FreeType is _not_ a text layout engine. You have to use
+ * higher-level libraries like HarfBuzz, Pango, or ICU for that.
+ *
+ * Note also that FreeType does _not_ perform alpha blending or
+ * compositing the resulting bitmaps or pixmaps by itself. Use your
+ * favourite graphics library (for example, Cairo or Skia) to further
+ * process FreeType's output.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * @section:
* header_inclusion
*
* @title:
@@ -176,6 +204,7 @@ FT_BEGIN_HEADER
* FT_Size_RequestRec
* FT_Size_Request
* FT_Set_Transform
+ * FT_Get_Transform
* FT_Load_Glyph
* FT_Get_Char_Index
* FT_Get_First_Char
@@ -587,11 +616,12 @@ FT_BEGIN_HEADER
*/
#ifndef FT_ENC_TAG
-#define FT_ENC_TAG( value, a, b, c, d ) \
- value = ( ( (FT_UInt32)(a) << 24 ) | \
- ( (FT_UInt32)(b) << 16 ) | \
- ( (FT_UInt32)(c) << 8 ) | \
- (FT_UInt32)(d) )
+
+#define FT_ENC_TAG( value, a, b, c, d ) \
+ value = ( ( FT_STATIC_BYTE_CAST( FT_UInt32, a ) << 24 ) | \
+ ( FT_STATIC_BYTE_CAST( FT_UInt32, b ) << 16 ) | \
+ ( FT_STATIC_BYTE_CAST( FT_UInt32, c ) << 8 ) | \
+ FT_STATIC_BYTE_CAST( FT_UInt32, d ) )
#endif /* FT_ENC_TAG */
@@ -701,11 +731,16 @@ FT_BEGIN_HEADER
* Same as FT_ENCODING_JOHAB. Deprecated.
*
* @note:
- * By default, FreeType enables a Unicode charmap and tags it with
- * `FT_ENCODING_UNICODE` when it is either provided or can be generated
- * from PostScript glyph name dictionaries in the font file. All other
- * encodings are considered legacy and tagged only if explicitly defined
- * in the font file. Otherwise, `FT_ENCODING_NONE` is used.
+ * When loading a font, FreeType makes a Unicode charmap active if
+ * possible (either if the font provides such a charmap, or if FreeType
+ * can synthesize one from PostScript glyph name dictionaries; in either
+ * case, the charmap is tagged with `FT_ENCODING_UNICODE`). If such a
+ * charmap is synthesized, it is placed at the first position of the
+ * charmap array.
+ *
+ * All other encodings are considered legacy and tagged only if
+ * explicitly defined in the font file. Otherwise, `FT_ENCODING_NONE` is
+ * used.
*
* `FT_ENCODING_NONE` is set by the BDF and PCF drivers if the charmap is
* neither Unicode nor ISO-8859-1 (otherwise it is set to
@@ -2065,7 +2100,8 @@ FT_BEGIN_HEADER
* The size in bytes of the file in memory.
*
* pathname ::
- * A pointer to an 8-bit file pathname. The pointer is not owned by
+ * A pointer to an 8-bit file pathname, which must be a C~string (i.e.,
+ * no null bytes except at the very end). The pointer is not owned by
* FreeType.
*
* stream ::
@@ -2084,8 +2120,7 @@ FT_BEGIN_HEADER
* Extra parameters passed to the font driver when opening a new face.
*
* @note:
- * The stream type is determined by the contents of `flags` that are
- * tested in the following order by @FT_Open_Face:
+ * The stream type is determined by the contents of `flags`:
*
* If the @FT_OPEN_MEMORY bit is set, assume that this is a memory file
* of `memory_size` bytes, located at `memory_address`. The data are not
@@ -2098,6 +2133,9 @@ FT_BEGIN_HEADER
* Otherwise, if the @FT_OPEN_PATHNAME bit is set, assume that this is a
* normal file and use `pathname` to open it.
*
+ * If none of the above bits are set or if multiple are set at the same
+ * time, the flags are invalid and @FT_Open_Face fails.
+ *
* If the @FT_OPEN_DRIVER bit is set, @FT_Open_Face only tries to open
* the file with the driver whose handler is in `driver`.
*
@@ -2150,6 +2188,13 @@ FT_BEGIN_HEADER
* FreeType error code. 0~means success.
*
* @note:
+ * The `pathname` string should be recognizable as such by a standard
+ * `fopen` call on your system; in particular, this means that `pathname`
+ * must not contain null bytes. If that is not sufficient to address all
+ * file name possibilities (for example, to handle wide character file
+ * names on Windows in UTF-16 encoding) you might use @FT_Open_Face to
+ * pass a memory array or a stream object instead.
+ *
* Use @FT_Done_Face to destroy the created @FT_Face object (along with
* its slot and sizes).
*/
@@ -2270,6 +2315,10 @@ FT_BEGIN_HEADER
* See the discussion of reference counters in the description of
* @FT_Reference_Face.
*
+ * If `FT_OPEN_STREAM` is set in `args->flags`, the stream in
+ * `args->stream` is automatically closed before this function returns
+ * any error (including `FT_Err_Invalid_Argument`).
+ *
* @example:
* To loop over all faces, use code similar to the following snippet
* (omitting the error handling).
@@ -2428,6 +2477,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.4.2
+ *
*/
FT_EXPORT( FT_Error )
FT_Reference_Face( FT_Face face );
@@ -2874,7 +2924,7 @@ FT_BEGIN_HEADER
*
* If the font is 'tricky' (see @FT_FACE_FLAG_TRICKY for more), using
* `FT_LOAD_NO_SCALE` usually yields meaningless outlines because the
- * subglyphs must be scaled and positioned with hinting instructions.
+ * subglyphs must be scaled and positioned with hinting instructions.
* This can be solved by loading the font without `FT_LOAD_NO_SCALE`
* and setting the character size to `font->units_per_EM`.
*
@@ -3132,7 +3182,7 @@ FT_BEGIN_HEADER
* necessary to empty the cache after a mode switch to avoid false hits.
*
*/
-#define FT_LOAD_TARGET_( x ) ( (FT_Int32)( (x) & 15 ) << 16 )
+#define FT_LOAD_TARGET_( x ) ( FT_STATIC_CAST( FT_Int32, (x) & 15 ) << 16 )
#define FT_LOAD_TARGET_NORMAL FT_LOAD_TARGET_( FT_RENDER_MODE_NORMAL )
#define FT_LOAD_TARGET_LIGHT FT_LOAD_TARGET_( FT_RENDER_MODE_LIGHT )
@@ -3151,7 +3201,8 @@ FT_BEGIN_HEADER
* @FT_LOAD_TARGET_XXX value.
*
*/
-#define FT_LOAD_TARGET_MODE( x ) ( (FT_Render_Mode)( ( (x) >> 16 ) & 15 ) )
+#define FT_LOAD_TARGET_MODE( x ) \
+ FT_STATIC_CAST( FT_Render_Mode, ( (x) >> 16 ) & 15 )
/**************************************************************************
@@ -3172,11 +3223,12 @@ FT_BEGIN_HEADER
* A pointer to the transformation's 2x2 matrix. Use `NULL` for the
* identity matrix.
* delta ::
- * A pointer to the translation vector. Use `NULL` for the null vector.
+ * A pointer to the translation vector. Use `NULL` for the null
+ * vector.
*
* @note:
* This function is provided as a convenience, but keep in mind that
- * @FT_Matrix coefficients are only 16.16 fixed point values, which can
+ * @FT_Matrix coefficients are only 16.16 fixed-point values, which can
* limit the accuracy of the results. Using floating-point computations
* to perform the transform directly in client code instead will always
* yield better numbers.
@@ -3197,6 +3249,39 @@ FT_BEGIN_HEADER
/**************************************************************************
*
+ * @function:
+ * FT_Get_Transform
+ *
+ * @description:
+ * Return the transformation that is applied to glyph images when they
+ * are loaded into a glyph slot through @FT_Load_Glyph. See
+ * @FT_Set_Transform for more details.
+ *
+ * @input:
+ * face ::
+ * A handle to the source face object.
+ *
+ * @output:
+ * matrix ::
+ * A pointer to a transformation's 2x2 matrix. Set this to NULL if you
+ * are not interested in the value.
+ *
+ * delta ::
+ * A pointer a translation vector. Set this to NULL if you are not
+ * interested in the value.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ FT_EXPORT( void )
+ FT_Get_Transform( FT_Face face,
+ FT_Matrix* matrix,
+ FT_Vector* delta );
+
+
+ /**************************************************************************
+ *
* @enum:
* FT_Render_Mode
*
@@ -3213,6 +3298,10 @@ FT_BEGIN_HEADER
* correction to correctly render non-monochrome glyph bitmaps onto a
* surface; see @FT_Render_Glyph.
*
+ * The @FT_RENDER_MODE_SDF is a special render mode that uses up to 256
+ * distance values, indicating the signed distance from the grid position
+ * to the nearest outline.
+ *
* @values:
* FT_RENDER_MODE_NORMAL ::
* Default render mode; it corresponds to 8-bit anti-aliased bitmaps.
@@ -3238,11 +3327,49 @@ FT_BEGIN_HEADER
* bitmaps that are 3~times the height of the original glyph outline in
* pixels and use the @FT_PIXEL_MODE_LCD_V mode.
*
+ * FT_RENDER_MODE_SDF ::
+ * This mode corresponds to 8-bit, single-channel signed distance field
+ * (SDF) bitmaps. Each pixel in the SDF grid is the value from the
+ * pixel's position to the nearest glyph's outline. The distances are
+ * calculated from the center of the pixel and are positive if they are
+ * filled by the outline (i.e., inside the outline) and negative
+ * otherwise. Check the note below on how to convert the output values
+ * to usable data.
+ *
* @note:
* The selected render mode only affects vector glyphs of a font.
* Embedded bitmaps often have a different pixel mode like
* @FT_PIXEL_MODE_MONO. You can use @FT_Bitmap_Convert to transform them
* into 8-bit pixmaps.
+ *
+ * For @FT_RENDER_MODE_SDF the output bitmap buffer contains normalized
+ * distances that are packed into unsigned 8-bit values. To get pixel
+ * values in floating point representation use the following pseudo-C
+ * code for the conversion.
+ *
+ * ```
+ * // Load glyph and render using FT_RENDER_MODE_SDF,
+ * // then use the output buffer as follows.
+ *
+ * ...
+ * FT_Byte buffer = glyph->bitmap->buffer;
+ *
+ *
+ * for pixel in buffer
+ * {
+ * // `sd` is the signed distance and `spread` is the current spread;
+ * // the default spread is 2 and can be changed.
+ *
+ * float sd = (float)pixel - 128.0f;
+ *
+ *
+ * // Convert to pixel values.
+ * sd = ( sd / 128.0f ) * spread;
+ *
+ * // Store `sd` in a buffer or use as required.
+ * }
+ *
+ * ```
*/
typedef enum FT_Render_Mode_
{
@@ -3251,6 +3378,7 @@ FT_BEGIN_HEADER
FT_RENDER_MODE_MONO,
FT_RENDER_MODE_LCD,
FT_RENDER_MODE_LCD_V,
+ FT_RENDER_MODE_SDF,
FT_RENDER_MODE_MAX
@@ -3338,7 +3466,8 @@ FT_BEGIN_HEADER
*
* which is known as the OVER operator.
*
- * To correctly composite an antialiased pixel of a glyph onto a surface,
+ * To correctly composite an anti-aliased pixel of a glyph onto a
+ * surface,
*
* 1. take the foreground and background colors (e.g., in sRGB space)
* and apply gamma to get them in a linear space,
@@ -4018,168 +4147,6 @@ FT_BEGIN_HEADER
/**************************************************************************
*
* @section:
- * layer_management
- *
- * @title:
- * Glyph Layer Management
- *
- * @abstract:
- * Retrieving and manipulating OpenType's 'COLR' table data.
- *
- * @description:
- * The functions described here allow access of colored glyph layer data
- * in OpenType's 'COLR' tables.
- */
-
-
- /**************************************************************************
- *
- * @struct:
- * FT_LayerIterator
- *
- * @description:
- * This iterator object is needed for @FT_Get_Color_Glyph_Layer.
- *
- * @fields:
- * num_layers ::
- * The number of glyph layers for the requested glyph index. Will be
- * set by @FT_Get_Color_Glyph_Layer.
- *
- * layer ::
- * The current layer. Will be set by @FT_Get_Color_Glyph_Layer.
- *
- * p ::
- * An opaque pointer into 'COLR' table data. The caller must set this
- * to `NULL` before the first call of @FT_Get_Color_Glyph_Layer.
- */
- typedef struct FT_LayerIterator_
- {
- FT_UInt num_layers;
- FT_UInt layer;
- FT_Byte* p;
-
- } FT_LayerIterator;
-
-
- /**************************************************************************
- *
- * @function:
- * FT_Get_Color_Glyph_Layer
- *
- * @description:
- * This is an interface to the 'COLR' table in OpenType fonts to
- * iteratively retrieve the colored glyph layers associated with the
- * current glyph slot.
- *
- * https://docs.microsoft.com/en-us/typography/opentype/spec/colr
- *
- * The glyph layer data for a given glyph index, if present, provides an
- * alternative, multi-color glyph representation: Instead of rendering
- * the outline or bitmap with the given glyph index, glyphs with the
- * indices and colors returned by this function are rendered layer by
- * layer.
- *
- * The returned elements are ordered in the z~direction from bottom to
- * top; the 'n'th element should be rendered with the associated palette
- * color and blended on top of the already rendered layers (elements 0,
- * 1, ..., n-1).
- *
- * @input:
- * face ::
- * A handle to the parent face object.
- *
- * base_glyph ::
- * The glyph index the colored glyph layers are associated with.
- *
- * @inout:
- * iterator ::
- * An @FT_LayerIterator object. For the first call you should set
- * `iterator->p` to `NULL`. For all following calls, simply use the
- * same object again.
- *
- * @output:
- * aglyph_index ::
- * The glyph index of the current layer.
- *
- * acolor_index ::
- * The color index into the font face's color palette of the current
- * layer. The value 0xFFFF is special; it doesn't reference a palette
- * entry but indicates that the text foreground color should be used
- * instead (to be set up by the application outside of FreeType).
- *
- * The color palette can be retrieved with @FT_Palette_Select.
- *
- * @return:
- * Value~1 if everything is OK. If there are no more layers (or if there
- * are no layers at all), value~0 gets returned. In case of an error,
- * value~0 is returned also.
- *
- * @note:
- * This function is necessary if you want to handle glyph layers by
- * yourself. In particular, functions that operate with @FT_GlyphRec
- * objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access
- * to this information.
- *
- * Note that @FT_Render_Glyph is able to handle colored glyph layers
- * automatically if the @FT_LOAD_COLOR flag is passed to a previous call
- * to @FT_Load_Glyph. [This is an experimental feature.]
- *
- * @example:
- * ```
- * FT_Color* palette;
- * FT_LayerIterator iterator;
- *
- * FT_Bool have_layers;
- * FT_UInt layer_glyph_index;
- * FT_UInt layer_color_index;
- *
- *
- * error = FT_Palette_Select( face, palette_index, &palette );
- * if ( error )
- * palette = NULL;
- *
- * iterator.p = NULL;
- * have_layers = FT_Get_Color_Glyph_Layer( face,
- * glyph_index,
- * &layer_glyph_index,
- * &layer_color_index,
- * &iterator );
- *
- * if ( palette && have_layers )
- * {
- * do
- * {
- * FT_Color layer_color;
- *
- *
- * if ( layer_color_index == 0xFFFF )
- * layer_color = text_foreground_color;
- * else
- * layer_color = palette[layer_color_index];
- *
- * // Load and render glyph `layer_glyph_index', then
- * // blend resulting pixmap (using color `layer_color')
- * // with previously created pixmaps.
- *
- * } while ( FT_Get_Color_Glyph_Layer( face,
- * glyph_index,
- * &layer_glyph_index,
- * &layer_color_index,
- * &iterator ) );
- * }
- * ```
- */
- FT_EXPORT( FT_Bool )
- FT_Get_Color_Glyph_Layer( FT_Face face,
- FT_UInt base_glyph,
- FT_UInt *aglyph_index,
- FT_UInt *acolor_index,
- FT_LayerIterator* iterator );
-
-
- /**************************************************************************
- *
- * @section:
* base_interface
*
*/
@@ -4267,6 +4234,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.8
+ *
*/
FT_EXPORT( FT_UShort )
FT_Get_FSType_Flags( FT_Face face );
@@ -4360,6 +4328,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.6
+ *
*/
FT_EXPORT( FT_UInt )
FT_Face_GetCharVariantIndex( FT_Face face,
@@ -4396,6 +4365,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.6
+ *
*/
FT_EXPORT( FT_Int )
FT_Face_GetCharVariantIsDefault( FT_Face face,
@@ -4427,6 +4397,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.6
+ *
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetVariantSelectors( FT_Face face );
@@ -4460,6 +4431,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.6
+ *
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetVariantsOfChar( FT_Face face,
@@ -4494,6 +4466,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.6
+ *
*/
FT_EXPORT( FT_UInt32* )
FT_Face_GetCharsOfVariant( FT_Face face,
@@ -4766,8 +4739,8 @@ FT_BEGIN_HEADER
*
*/
#define FREETYPE_MAJOR 2
-#define FREETYPE_MINOR 10
-#define FREETYPE_PATCH 4
+#define FREETYPE_MINOR 11
+#define FREETYPE_PATCH 1
/**************************************************************************
@@ -4829,6 +4802,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.5
+ *
*/
FT_EXPORT( FT_Bool )
FT_Face_CheckTrueTypePatents( FT_Face face );
@@ -4857,6 +4831,7 @@ FT_BEGIN_HEADER
*
* @since:
* 2.3.5
+ *
*/
FT_EXPORT( FT_Bool )
FT_Face_SetUnpatentedHinting( FT_Face face,
diff --git a/thirdparty/freetype/include/freetype/ftadvanc.h b/thirdparty/freetype/include/freetype/ftadvanc.h
index f166bc6f99..3a13bd3de4 100644
--- a/thirdparty/freetype/include/freetype/ftadvanc.h
+++ b/thirdparty/freetype/include/freetype/ftadvanc.h
@@ -4,7 +4,7 @@
*
* Quick computation of advance widths (specification only).
*
- * Copyright (C) 2008-2020 by
+ * Copyright (C) 2008-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftbbox.h b/thirdparty/freetype/include/freetype/ftbbox.h
index fda1ad94a5..713aedb15f 100644
--- a/thirdparty/freetype/include/freetype/ftbbox.h
+++ b/thirdparty/freetype/include/freetype/ftbbox.h
@@ -4,7 +4,7 @@
*
* FreeType exact bbox computation (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftbdf.h b/thirdparty/freetype/include/freetype/ftbdf.h
index 2e1daeeaaf..c428506405 100644
--- a/thirdparty/freetype/include/freetype/ftbdf.h
+++ b/thirdparty/freetype/include/freetype/ftbdf.h
@@ -4,7 +4,7 @@
*
* FreeType API for accessing BDF-specific strings (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftbitmap.h b/thirdparty/freetype/include/freetype/ftbitmap.h
index 282c22e1cf..11c45b0ed2 100644
--- a/thirdparty/freetype/include/freetype/ftbitmap.h
+++ b/thirdparty/freetype/include/freetype/ftbitmap.h
@@ -4,7 +4,7 @@
*
* FreeType utility functions for bitmaps (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftbzip2.h b/thirdparty/freetype/include/freetype/ftbzip2.h
index eb6a5a55d1..afd2a82afb 100644
--- a/thirdparty/freetype/include/freetype/ftbzip2.h
+++ b/thirdparty/freetype/include/freetype/ftbzip2.h
@@ -4,7 +4,7 @@
*
* Bzip2-compressed stream support.
*
- * Copyright (C) 2010-2020 by
+ * Copyright (C) 2010-2021 by
* Joel Klinghed.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftcache.h b/thirdparty/freetype/include/freetype/ftcache.h
index 6047275205..70399a328a 100644
--- a/thirdparty/freetype/include/freetype/ftcache.h
+++ b/thirdparty/freetype/include/freetype/ftcache.h
@@ -4,7 +4,7 @@
*
* FreeType Cache subsystem (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -86,8 +86,8 @@ FT_BEGIN_HEADER
* later use @FTC_CMapCache_Lookup to perform the equivalent of
* @FT_Get_Char_Index, only much faster.
*
- * If you want to use the @FT_Glyph caching, call @FTC_ImageCache, then
- * later use @FTC_ImageCache_Lookup to retrieve the corresponding
+ * If you want to use the @FT_Glyph caching, call @FTC_ImageCache_New,
+ * then later use @FTC_ImageCache_Lookup to retrieve the corresponding
* @FT_Glyph objects from the cache.
*
* If you need lots of small bitmaps, it is much more memory efficient to
diff --git a/thirdparty/freetype/include/freetype/ftchapters.h b/thirdparty/freetype/include/freetype/ftchapters.h
index 2ee26973e4..4f32cc88c8 100644
--- a/thirdparty/freetype/include/freetype/ftchapters.h
+++ b/thirdparty/freetype/include/freetype/ftchapters.h
@@ -15,6 +15,7 @@
* General Remarks
*
* @sections:
+ * preamble
* header_inclusion
* user_allocation
*
@@ -123,6 +124,7 @@
* gzip
* lzw
* bzip2
+ * debugging_apis
*
*/
diff --git a/thirdparty/freetype/include/freetype/ftcid.h b/thirdparty/freetype/include/freetype/ftcid.h
index a29fb33306..9a415bd98b 100644
--- a/thirdparty/freetype/include/freetype/ftcid.h
+++ b/thirdparty/freetype/include/freetype/ftcid.h
@@ -4,7 +4,7 @@
*
* FreeType API for accessing CID font information (specification).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* Dereg Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftcolor.h b/thirdparty/freetype/include/freetype/ftcolor.h
index ecc6485e5a..08dbac0ccc 100644
--- a/thirdparty/freetype/include/freetype/ftcolor.h
+++ b/thirdparty/freetype/include/freetype/ftcolor.h
@@ -4,7 +4,7 @@
*
* FreeType's glyph color management (specification).
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -302,6 +302,1411 @@ FT_BEGIN_HEADER
FT_Palette_Set_Foreground_Color( FT_Face face,
FT_Color foreground_color );
+
+ /**************************************************************************
+ *
+ * @section:
+ * layer_management
+ *
+ * @title:
+ * Glyph Layer Management
+ *
+ * @abstract:
+ * Retrieving and manipulating OpenType's 'COLR' table data.
+ *
+ * @description:
+ * The functions described here allow access of colored glyph layer data
+ * in OpenType's 'COLR' tables.
+ */
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_LayerIterator
+ *
+ * @description:
+ * This iterator object is needed for @FT_Get_Color_Glyph_Layer.
+ *
+ * @fields:
+ * num_layers ::
+ * The number of glyph layers for the requested glyph index. Will be
+ * set by @FT_Get_Color_Glyph_Layer.
+ *
+ * layer ::
+ * The current layer. Will be set by @FT_Get_Color_Glyph_Layer.
+ *
+ * p ::
+ * An opaque pointer into 'COLR' table data. The caller must set this
+ * to `NULL` before the first call of @FT_Get_Color_Glyph_Layer.
+ */
+ typedef struct FT_LayerIterator_
+ {
+ FT_UInt num_layers;
+ FT_UInt layer;
+ FT_Byte* p;
+
+ } FT_LayerIterator;
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Color_Glyph_Layer
+ *
+ * @description:
+ * This is an interface to the 'COLR' table in OpenType fonts to
+ * iteratively retrieve the colored glyph layers associated with the
+ * current glyph slot.
+ *
+ * https://docs.microsoft.com/en-us/typography/opentype/spec/colr
+ *
+ * The glyph layer data for a given glyph index, if present, provides an
+ * alternative, multi-color glyph representation: Instead of rendering
+ * the outline or bitmap with the given glyph index, glyphs with the
+ * indices and colors returned by this function are rendered layer by
+ * layer.
+ *
+ * The returned elements are ordered in the z~direction from bottom to
+ * top; the 'n'th element should be rendered with the associated palette
+ * color and blended on top of the already rendered layers (elements 0,
+ * 1, ..., n-1).
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * base_glyph ::
+ * The glyph index the colored glyph layers are associated with.
+ *
+ * @inout:
+ * iterator ::
+ * An @FT_LayerIterator object. For the first call you should set
+ * `iterator->p` to `NULL`. For all following calls, simply use the
+ * same object again.
+ *
+ * @output:
+ * aglyph_index ::
+ * The glyph index of the current layer.
+ *
+ * acolor_index ::
+ * The color index into the font face's color palette of the current
+ * layer. The value 0xFFFF is special; it doesn't reference a palette
+ * entry but indicates that the text foreground color should be used
+ * instead (to be set up by the application outside of FreeType).
+ *
+ * The color palette can be retrieved with @FT_Palette_Select.
+ *
+ * @return:
+ * Value~1 if everything is OK. If there are no more layers (or if there
+ * are no layers at all), value~0 gets returned. In case of an error,
+ * value~0 is returned also.
+ *
+ * @note:
+ * This function is necessary if you want to handle glyph layers by
+ * yourself. In particular, functions that operate with @FT_GlyphRec
+ * objects (like @FT_Get_Glyph or @FT_Glyph_To_Bitmap) don't have access
+ * to this information.
+ *
+ * Note that @FT_Render_Glyph is able to handle colored glyph layers
+ * automatically if the @FT_LOAD_COLOR flag is passed to a previous call
+ * to @FT_Load_Glyph. [This is an experimental feature.]
+ *
+ * @example:
+ * ```
+ * FT_Color* palette;
+ * FT_LayerIterator iterator;
+ *
+ * FT_Bool have_layers;
+ * FT_UInt layer_glyph_index;
+ * FT_UInt layer_color_index;
+ *
+ *
+ * error = FT_Palette_Select( face, palette_index, &palette );
+ * if ( error )
+ * palette = NULL;
+ *
+ * iterator.p = NULL;
+ * have_layers = FT_Get_Color_Glyph_Layer( face,
+ * glyph_index,
+ * &layer_glyph_index,
+ * &layer_color_index,
+ * &iterator );
+ *
+ * if ( palette && have_layers )
+ * {
+ * do
+ * {
+ * FT_Color layer_color;
+ *
+ *
+ * if ( layer_color_index == 0xFFFF )
+ * layer_color = text_foreground_color;
+ * else
+ * layer_color = palette[layer_color_index];
+ *
+ * // Load and render glyph `layer_glyph_index', then
+ * // blend resulting pixmap (using color `layer_color')
+ * // with previously created pixmaps.
+ *
+ * } while ( FT_Get_Color_Glyph_Layer( face,
+ * glyph_index,
+ * &layer_glyph_index,
+ * &layer_color_index,
+ * &iterator ) );
+ * }
+ * ```
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Color_Glyph_Layer( FT_Face face,
+ FT_UInt base_glyph,
+ FT_UInt *aglyph_index,
+ FT_UInt *acolor_index,
+ FT_LayerIterator* iterator );
+
+
+ /**************************************************************************
+ *
+ * @enum:
+ * FT_PaintFormat
+ *
+ * @description:
+ * Enumeration describing the different paint format types of the v1
+ * extensions to the 'COLR' table, see
+ * 'https://github.com/googlefonts/colr-gradients-spec'.
+ *
+ * The enumeration values losely correspond with the format numbers of
+ * the specification: FreeType always returns a fully specified 'Paint'
+ * structure for the 'Transform', 'Translate', 'Scale', 'Rotate', and
+ * 'Skew' table types even though the specification has different formats
+ * depending on whether or not a center is specified, whether the scale
+ * is uniform in x and y~direction or not, etc. Also, only non-variable
+ * format identifiers are listed in this enumeration; as soon as support
+ * for variable 'COLR' v1 fonts is implemented, interpolation is
+ * performed dependent on axis coordinates, which are configured on the
+ * @FT_Face through @FT_Set_Var_Design_Coordinates. This implies that
+ * always static, readily interpolated values are returned in the 'Paint'
+ * structures.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef enum FT_PaintFormat_
+ {
+ FT_COLR_PAINTFORMAT_COLR_LAYERS = 1,
+ FT_COLR_PAINTFORMAT_SOLID = 2,
+ FT_COLR_PAINTFORMAT_LINEAR_GRADIENT = 4,
+ FT_COLR_PAINTFORMAT_RADIAL_GRADIENT = 6,
+ FT_COLR_PAINTFORMAT_SWEEP_GRADIENT = 8,
+ FT_COLR_PAINTFORMAT_GLYPH = 10,
+ FT_COLR_PAINTFORMAT_COLR_GLYPH = 11,
+ FT_COLR_PAINTFORMAT_TRANSFORM = 12,
+ FT_COLR_PAINTFORMAT_TRANSLATE = 14,
+ FT_COLR_PAINTFORMAT_SCALE = 16,
+ FT_COLR_PAINTFORMAT_ROTATE = 24,
+ FT_COLR_PAINTFORMAT_SKEW = 28,
+ FT_COLR_PAINTFORMAT_COMPOSITE = 32,
+ FT_COLR_PAINT_FORMAT_MAX = 33,
+ FT_COLR_PAINTFORMAT_UNSUPPORTED = 255
+
+ } FT_PaintFormat;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_ColorStopIterator
+ *
+ * @description:
+ * This iterator object is needed for @FT_Get_Colorline_Stops. It keeps
+ * state while iterating over the stops of an @FT_ColorLine,
+ * representing the `ColorLine` struct of the v1 extensions to 'COLR',
+ * see 'https://github.com/googlefonts/colr-gradients-spec'.
+ *
+ * @fields:
+ * num_color_stops ::
+ * The number of color stops for the requested glyph index. Set by
+ * @FT_Get_Colorline_Stops.
+ *
+ * current_color_stop ::
+ * The current color stop. Set by @FT_Get_Colorline_Stops.
+ *
+ * p ::
+ * An opaque pointer into 'COLR' table data. The caller must set this
+ * to `NULL` before the first call of @FT_Get_Colorline_Stops.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_ColorStopIterator_
+ {
+ FT_UInt num_color_stops;
+ FT_UInt current_color_stop;
+
+ FT_Byte* p;
+
+ } FT_ColorStopIterator;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_ColorIndex
+ *
+ * @description:
+ * A structure representing a `ColorIndex` value of the 'COLR' v1
+ * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
+ *
+ * @fields:
+ * palette_index ::
+ * The palette index into a 'CPAL' palette.
+ *
+ * alpha ::
+ * Alpha transparency value multiplied with the value from 'CPAL'.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_ColorIndex_
+ {
+ FT_UInt16 palette_index;
+ FT_F2Dot14 alpha;
+
+ } FT_ColorIndex;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_ColorStop
+ *
+ * @description:
+ * A structure representing a `ColorStop` value of the 'COLR' v1
+ * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
+ *
+ * @fields:
+ * stop_offset ::
+ * The stop offset between 0 and 1 along the gradient.
+ *
+ * color ::
+ * The color information for this stop, see @FT_ColorIndex.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_ColorStop_
+ {
+ FT_F2Dot14 stop_offset;
+ FT_ColorIndex color;
+
+ } FT_ColorStop;
+
+
+ /**************************************************************************
+ *
+ * @enum:
+ * FT_PaintExtend
+ *
+ * @description:
+ * An enumeration representing the 'Extend' mode of the 'COLR' v1
+ * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
+ * It describes how the gradient fill continues at the other boundaries.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef enum FT_PaintExtend_
+ {
+ FT_COLR_PAINT_EXTEND_PAD = 0,
+ FT_COLR_PAINT_EXTEND_REPEAT = 1,
+ FT_COLR_PAINT_EXTEND_REFLECT = 2
+
+ } FT_PaintExtend;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_ColorLine
+ *
+ * @description:
+ * A structure representing a `ColorLine` value of the 'COLR' v1
+ * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
+ * It describes a list of color stops along the defined gradient.
+ *
+ * @fields:
+ * extend ::
+ * The extend mode at the outer boundaries, see @FT_PaintExtend.
+ *
+ * color_stop_iterator ::
+ * The @FT_ColorStopIterator used to enumerate and retrieve the
+ * actual @FT_ColorStop's.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_ColorLine_
+ {
+ FT_PaintExtend extend;
+ FT_ColorStopIterator color_stop_iterator;
+
+ } FT_ColorLine;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_Affine23
+ *
+ * @description:
+ * A structure used to store a 2x3 matrix. Coefficients are in
+ * 16.16 fixed-point format. The computation performed is
+ *
+ * ```
+ * x' = x*xx + y*xy + dx
+ * y' = x*yx + y*yy + dy
+ * ```
+ *
+ * @fields:
+ * xx ::
+ * Matrix coefficient.
+ *
+ * xy ::
+ * Matrix coefficient.
+ *
+ * dx ::
+ * x translation.
+ *
+ * yx ::
+ * Matrix coefficient.
+ *
+ * yy ::
+ * Matrix coefficient.
+ *
+ * dy ::
+ * y translation.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_Affine_23_
+ {
+ FT_Fixed xx, xy, dx;
+ FT_Fixed yx, yy, dy;
+
+ } FT_Affine23;
+
+
+ /**************************************************************************
+ *
+ * @enum:
+ * FT_Composite_Mode
+ *
+ * @description:
+ * An enumeration listing the 'COLR' v1 composite modes used in
+ * @FT_PaintComposite. For more details on each paint mode, see
+ * 'https://www.w3.org/TR/compositing-1/#porterduffcompositingoperators'.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef enum FT_Composite_Mode_
+ {
+ FT_COLR_COMPOSITE_CLEAR = 0,
+ FT_COLR_COMPOSITE_SRC = 1,
+ FT_COLR_COMPOSITE_DEST = 2,
+ FT_COLR_COMPOSITE_SRC_OVER = 3,
+ FT_COLR_COMPOSITE_DEST_OVER = 4,
+ FT_COLR_COMPOSITE_SRC_IN = 5,
+ FT_COLR_COMPOSITE_DEST_IN = 6,
+ FT_COLR_COMPOSITE_SRC_OUT = 7,
+ FT_COLR_COMPOSITE_DEST_OUT = 8,
+ FT_COLR_COMPOSITE_SRC_ATOP = 9,
+ FT_COLR_COMPOSITE_DEST_ATOP = 10,
+ FT_COLR_COMPOSITE_XOR = 11,
+ FT_COLR_COMPOSITE_PLUS = 12,
+ FT_COLR_COMPOSITE_SCREEN = 13,
+ FT_COLR_COMPOSITE_OVERLAY = 14,
+ FT_COLR_COMPOSITE_DARKEN = 15,
+ FT_COLR_COMPOSITE_LIGHTEN = 16,
+ FT_COLR_COMPOSITE_COLOR_DODGE = 17,
+ FT_COLR_COMPOSITE_COLOR_BURN = 18,
+ FT_COLR_COMPOSITE_HARD_LIGHT = 19,
+ FT_COLR_COMPOSITE_SOFT_LIGHT = 20,
+ FT_COLR_COMPOSITE_DIFFERENCE = 21,
+ FT_COLR_COMPOSITE_EXCLUSION = 22,
+ FT_COLR_COMPOSITE_MULTIPLY = 23,
+ FT_COLR_COMPOSITE_HSL_HUE = 24,
+ FT_COLR_COMPOSITE_HSL_SATURATION = 25,
+ FT_COLR_COMPOSITE_HSL_COLOR = 26,
+ FT_COLR_COMPOSITE_HSL_LUMINOSITY = 27,
+ FT_COLR_COMPOSITE_MAX = 28
+
+ } FT_Composite_Mode;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_OpaquePaint
+ *
+ * @description:
+ * A structure representing an offset to a `Paint` value stored in any
+ * of the paint tables of a 'COLR' v1 font. Compare Offset<24> there.
+ * When 'COLR' v1 paint tables represented by FreeType objects such as
+ * @FT_PaintColrLayers, @FT_PaintComposite, or @FT_PaintTransform
+ * reference downstream nested paint tables, we do not immediately
+ * retrieve them but encapsulate their location in this type. Use
+ * @FT_Get_Paint to retrieve the actual @FT_COLR_Paint object that
+ * describes the details of the respective paint table.
+ *
+ * @fields:
+ * p ::
+ * An internal offset to a Paint table, needs to be set to NULL before
+ * passing this struct as an argument to @FT_Get_Paint.
+ *
+ * insert_root_transform ::
+ * An internal boolean to track whether an initial root transform is
+ * to be provided. Do not set this value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_Opaque_Paint_
+ {
+ FT_Byte* p;
+ FT_Bool insert_root_transform;
+ } FT_OpaquePaint;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintColrLayers
+ *
+ * @description:
+ * A structure representing a `PaintColrLayers` table of a 'COLR' v1
+ * font. This table describes a set of layers that are to be composited
+ * with composite mode `FT_COLR_COMPOSITE_SRC_OVER`. The return value
+ * of this function is an @FT_LayerIterator initialized so that it can
+ * be used with @FT_Get_Paint_Layers to retrieve the @FT_OpaquePaint
+ * objects as references to each layer.
+ *
+ * @fields:
+ * layer_iterator ::
+ * The layer iterator that describes the layers of this paint.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintColrLayers_
+ {
+ FT_LayerIterator layer_iterator;
+
+ } FT_PaintColrLayers;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintSolid
+ *
+ * @description:
+ * A structure representing a `PaintSolid` value of the 'COLR' v1
+ * extensions, see 'https://github.com/googlefonts/colr-gradients-spec'.
+ * Using a `PaintSolid` value means that the glyph layer filled with
+ * this paint is solid-colored and does not contain a gradient.
+ *
+ * @fields:
+ * color ::
+ * The color information for this solid paint, see @FT_ColorIndex.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintSolid_
+ {
+ FT_ColorIndex color;
+
+ } FT_PaintSolid;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintLinearGradient
+ *
+ * @description:
+ * A structure representing a `PaintLinearGradient` value of the 'COLR'
+ * v1 extensions, see
+ * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
+ * layer filled with this paint is drawn filled with a linear gradient.
+ *
+ * @fields:
+ * colorline ::
+ * The @FT_ColorLine information for this paint, i.e., the list of
+ * color stops along the gradient.
+ *
+ * p0 ::
+ * The starting point of the gradient definition in font units
+ * represented as a 16.16 fixed-point `FT_Vector`.
+ *
+ * p1 ::
+ * The end point of the gradient definition in font units
+ * represented as a 16.16 fixed-point `FT_Vector`.
+ *
+ * p2 ::
+ * Optional point~p2 to rotate the gradient in font units
+ * represented as a 16.16 fixed-point `FT_Vector`.
+ * Otherwise equal to~p0.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintLinearGradient_
+ {
+ FT_ColorLine colorline;
+
+ /* TODO: Potentially expose those as x0, y0 etc. */
+ FT_Vector p0;
+ FT_Vector p1;
+ FT_Vector p2;
+
+ } FT_PaintLinearGradient;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintRadialGradient
+ *
+ * @description:
+ * A structure representing a `PaintRadialGradient` value of the 'COLR'
+ * v1 extensions, see
+ * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
+ * layer filled with this paint is drawn filled filled with a radial
+ * gradient.
+ *
+ * @fields:
+ * colorline ::
+ * The @FT_ColorLine information for this paint, i.e., the list of
+ * color stops along the gradient.
+ *
+ * c0 ::
+ * The center of the starting point of the radial gradient in font
+ * units represented as a 16.16 fixed-point `FT_Vector`.
+ *
+ * r0 ::
+ * The radius of the starting circle of the radial gradient in font
+ * units represented as a 16.16 fixed-point value.
+ *
+ * c1 ::
+ * The center of the end point of the radial gradient in font units
+ * represented as a 16.16 fixed-point `FT_Vector`.
+ *
+ * r1 ::
+ * The radius of the end circle of the radial gradient in font
+ * units represented as a 16.16 fixed-point value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintRadialGradient_
+ {
+ FT_ColorLine colorline;
+
+ FT_Vector c0;
+ FT_Pos r0;
+ FT_Vector c1;
+ FT_Pos r1;
+
+ } FT_PaintRadialGradient;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintSweepGradient
+ *
+ * @description:
+ * A structure representing a `PaintSweepGradient` value of the 'COLR'
+ * v1 extensions, see
+ * 'https://github.com/googlefonts/colr-gradients-spec'. The glyph
+ * layer filled with this paint is drawn filled with a sweep gradient
+ * from `start_angle` to `end_angle`.
+ *
+ * @fields:
+ * colorline ::
+ * The @FT_ColorLine information for this paint, i.e., the list of
+ * color stops along the gradient.
+ *
+ * center ::
+ * The center of the sweep gradient in font units represented as a
+ * vector of 16.16 fixed-point values.
+ *
+ * start_angle ::
+ * The start angle of the sweep gradient in 16.16 fixed-point
+ * format specifying degrees divided by 180.0 (as in the
+ * spec). Multiply by 180.0f to receive degrees value. Values are
+ * given counter-clockwise, starting from the (positive) y~axis.
+ *
+ * end_angle ::
+ * The end angle of the sweep gradient in 16.16 fixed-point
+ * format specifying degrees divided by 180.0 (as in the
+ * spec). Multiply by 180.0f to receive degrees value. Values are
+ * given counter-clockwise, starting from the (positive) y~axis.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintSweepGradient_
+ {
+ FT_ColorLine colorline;
+
+ FT_Vector center;
+ FT_Fixed start_angle;
+ FT_Fixed end_angle;
+
+ } FT_PaintSweepGradient;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintGlyph
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintGlyph` paint table.
+ *
+ * @fields:
+ * paint ::
+ * An opaque paint object pointing to a `Paint` table that serves as
+ * the fill for the glyph ID.
+ *
+ * glyphID ::
+ * The glyph ID from the 'glyf' table, which serves as the contour
+ * information that is filled with paint.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintGlyph_
+ {
+ FT_OpaquePaint paint;
+ FT_UInt glyphID;
+
+ } FT_PaintGlyph;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintColrGlyph
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintColorGlyph` paint table.
+ *
+ * @fields:
+ * glyphID ::
+ * The glyph ID from the `BaseGlyphV1List` table that is drawn for
+ * this paint.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintColrGlyph_
+ {
+ FT_UInt glyphID;
+
+ } FT_PaintColrGlyph;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintTransform
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintTransform` paint table.
+ *
+ * @fields:
+ * paint ::
+ * An opaque paint that is subject to being transformed.
+ *
+ * affine ::
+ * A 2x3 transformation matrix in @FT_Affine23 format containing
+ * 16.16 fixed-point values.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintTransform_
+ {
+ FT_OpaquePaint paint;
+ FT_Affine23 affine;
+
+ } FT_PaintTransform;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintTranslate
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintTranslate` paint table.
+ * Used for translating downstream paints by a given x and y~delta.
+ *
+ * @fields:
+ * paint ::
+ * An @FT_OpaquePaint object referencing the paint that is to be
+ * rotated.
+ *
+ * dx ::
+ * Translation in x~direction in font units represented as a
+ * 16.16 fixed-point value.
+ *
+ * dy ::
+ * Translation in y~direction in font units represented as a
+ * 16.16 fixed-point value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintTranslate_
+ {
+ FT_OpaquePaint paint;
+
+ FT_Fixed dx;
+ FT_Fixed dy;
+
+ } FT_PaintTranslate;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintScale
+ *
+ * @description:
+ * A structure representing all of the 'COLR' v1 'PaintScale*' paint
+ * tables. Used for scaling downstream paints by a given x and y~scale,
+ * with a given center. This structure is used for all 'PaintScale*'
+ * types that are part of specification; fields of this structure are
+ * filled accordingly. If there is a center, the center values are set,
+ * otherwise they are set to the zero coordinate. If the source font
+ * file has 'PaintScaleUniform*' set, the scale values are set
+ * accordingly to the same value.
+ *
+ * @fields:
+ * paint ::
+ * An @FT_OpaquePaint object referencing the paint that is to be
+ * scaled.
+ *
+ * scale_x ::
+ * Scale factor in x~direction represented as a
+ * 16.16 fixed-point value.
+ *
+ * scale_y ::
+ * Scale factor in y~direction represented as a
+ * 16.16 fixed-point value.
+ *
+ * center_x ::
+ * x~coordinate of center point to scale from represented as a
+ * 16.16 fixed-point value.
+ *
+ * center_y ::
+ * y~coordinate of center point to scale from represented as a
+ * 16.16 fixed-point value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward-compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintScale_
+ {
+ FT_OpaquePaint paint;
+
+ FT_Fixed scale_x;
+ FT_Fixed scale_y;
+
+ FT_Fixed center_x;
+ FT_Fixed center_y;
+
+ } FT_PaintScale;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintRotate
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintRotate` paint table. Used
+ * for rotating downstream paints with a given center and angle.
+ *
+ * @fields:
+ * paint ::
+ * An @FT_OpaquePaint object referencing the paint that is to be
+ * rotated.
+ *
+ * angle ::
+ * The rotation angle that is to be applied in degrees divided by
+ * 180.0 (as in the spec) represented as a 16.16 fixed-point
+ * value. Multiply by 180.0f to receive degrees value.
+ *
+ * center_x ::
+ * The x~coordinate of the pivot point of the rotation in font
+ * units) represented as a 16.16 fixed-point value.
+ *
+ * center_y ::
+ * The y~coordinate of the pivot point of the rotation in font
+ * units represented as a 16.16 fixed-point value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+
+ typedef struct FT_PaintRotate_
+ {
+ FT_OpaquePaint paint;
+
+ FT_Fixed angle;
+
+ FT_Fixed center_x;
+ FT_Fixed center_y;
+
+ } FT_PaintRotate;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintSkew
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 `PaintSkew` paint table. Used
+ * for skewing or shearing downstream paints by a given center and
+ * angle.
+ *
+ * @fields:
+ * paint ::
+ * An @FT_OpaquePaint object referencing the paint that is to be
+ * skewed.
+ *
+ * x_skew_angle ::
+ * The skewing angle in x~direction in degrees divided by 180.0
+ * (as in the spec) represented as a 16.16 fixed-point
+ * value. Multiply by 180.0f to receive degrees.
+ *
+ * y_skew_angle ::
+ * The skewing angle in y~direction in degrees divided by 180.0
+ * (as in the spec) represented as a 16.16 fixed-point
+ * value. Multiply by 180.0f to receive degrees.
+ *
+ * center_x ::
+ * The x~coordinate of the pivot point of the skew in font units
+ * represented as a 16.16 fixed-point value.
+ *
+ * center_y ::
+ * The y~coordinate of the pivot point of the skew in font units
+ * represented as a 16.16 fixed-point value.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintSkew_
+ {
+ FT_OpaquePaint paint;
+
+ FT_Fixed x_skew_angle;
+ FT_Fixed y_skew_angle;
+
+ FT_Fixed center_x;
+ FT_Fixed center_y;
+
+ } FT_PaintSkew;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_PaintComposite
+ *
+ * @description:
+ * A structure representing a 'COLR'v1 `PaintComposite` paint table.
+ * Used for compositing two paints in a 'COLR' v1 directed acycling
+ * graph.
+ *
+ * @fields:
+ * source_paint ::
+ * An @FT_OpaquePaint object referencing the source that is to be
+ * composited.
+ *
+ * composite_mode ::
+ * An @FT_Composite_Mode enum value determining the composition
+ * operation.
+ *
+ * backdrop_paint ::
+ * An @FT_OpaquePaint object referencing the backdrop paint that
+ * `source_paint` is composited onto.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_PaintComposite_
+ {
+ FT_OpaquePaint source_paint;
+ FT_Composite_Mode composite_mode;
+ FT_OpaquePaint backdrop_paint;
+
+ } FT_PaintComposite;
+
+
+ /**************************************************************************
+ *
+ * @union:
+ * FT_COLR_Paint
+ *
+ * @description:
+ * A union object representing format and details of a paint table of a
+ * 'COLR' v1 font, see
+ * 'https://github.com/googlefonts/colr-gradients-spec'. Use
+ * @FT_Get_Paint to retrieve a @FT_COLR_Paint for an @FT_OpaquePaint
+ * object.
+ *
+ * @fields:
+ * format ::
+ * The gradient format for this Paint structure.
+ *
+ * u ::
+ * Union of all paint table types:
+ *
+ * * @FT_PaintColrLayers
+ * * @FT_PaintGlyph
+ * * @FT_PaintSolid
+ * * @FT_PaintLinearGradient
+ * * @FT_PaintRadialGradient
+ * * @FT_PaintSweepGradient
+ * * @FT_PaintTransform
+ * * @FT_PaintTranslate
+ * * @FT_PaintRotate
+ * * @FT_PaintSkew
+ * * @FT_PaintComposite
+ * * @FT_PaintColrGlyph
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_COLR_Paint_
+ {
+ FT_PaintFormat format;
+
+ union
+ {
+ FT_PaintColrLayers colr_layers;
+ FT_PaintGlyph glyph;
+ FT_PaintSolid solid;
+ FT_PaintLinearGradient linear_gradient;
+ FT_PaintRadialGradient radial_gradient;
+ FT_PaintSweepGradient sweep_gradient;
+ FT_PaintTransform transform;
+ FT_PaintTranslate translate;
+ FT_PaintScale scale;
+ FT_PaintRotate rotate;
+ FT_PaintSkew skew;
+ FT_PaintComposite composite;
+ FT_PaintColrGlyph colr_glyph;
+
+ } u;
+
+ } FT_COLR_Paint;
+
+
+ /**************************************************************************
+ *
+ * @enum:
+ * FT_Color_Root_Transform
+ *
+ * @description:
+ * An enumeration to specify whether @FT_Get_Color_Glyph_Paint is to
+ * return a root transform to configure the client's graphics context
+ * matrix.
+ *
+ * @values:
+ * FT_COLOR_INCLUDE_ROOT_TRANSFORM ::
+ * Do include the root transform as the initial @FT_COLR_Paint object.
+ *
+ * FT_COLOR_NO_ROOT_TRANSFORM ::
+ * Do not output an initial root transform.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef enum FT_Color_Root_Transform_
+ {
+ FT_COLOR_INCLUDE_ROOT_TRANSFORM,
+ FT_COLOR_NO_ROOT_TRANSFORM,
+
+ FT_COLOR_ROOT_TRANSFORM_MAX
+
+ } FT_Color_Root_Transform;
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * FT_ClipBox
+ *
+ * @description:
+ * A structure representing a 'COLR' v1 'ClipBox' table. 'COLR' v1
+ * glyphs may optionally define a clip box for aiding allocation or
+ * defining a maximum drawable region. Use @FT_Get_Color_Glyph_ClipBox
+ * to retrieve it.
+ *
+ * @fields:
+ * bottom_left ::
+ * The bottom left corner of the clip box as an @FT_Vector with
+ * fixed-point coordinates in 26.6 format.
+ *
+ * top_left ::
+ * The top left corner of the clip box as an @FT_Vector with
+ * fixed-point coordinates in 26.6 format.
+ *
+ * top_right ::
+ * The top right corner of the clip box as an @FT_Vector with
+ * fixed-point coordinates in 26.6 format.
+ *
+ * bottom_right ::
+ * The bottom right corner of the clip box as an @FT_Vector with
+ * fixed-point coordinates in 26.6 format.
+ *
+ * @since:
+ * 2.12 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ typedef struct FT_ClipBox_
+ {
+ FT_Vector bottom_left;
+ FT_Vector top_left;
+ FT_Vector top_right;
+ FT_Vector bottom_right;
+
+ } FT_ClipBox;
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Color_Glyph_Paint
+ *
+ * @description:
+ * This is the starting point and interface to color gradient
+ * information in a 'COLR' v1 table in OpenType fonts to recursively
+ * retrieve the paint tables for the directed acyclic graph of a colored
+ * glyph, given a glyph ID.
+ *
+ * https://github.com/googlefonts/colr-gradients-spec
+ *
+ * In a 'COLR' v1 font, each color glyph defines a directed acyclic
+ * graph of nested paint tables, such as `PaintGlyph`, `PaintSolid`,
+ * `PaintLinearGradient`, `PaintRadialGradient`, and so on. Using this
+ * function and specifying a glyph ID, one retrieves the root paint
+ * table for this glyph ID.
+ *
+ * This function allows control whether an initial root transform is
+ * returned to configure scaling, transform, and translation correctly
+ * on the client's graphics context. The initial root transform is
+ * computed and returned according to the values configured for @FT_Size
+ * and @FT_Set_Transform on the @FT_Face object, see below for details
+ * of the `root_transform` parameter. This has implications for a
+ * client 'COLR' v1 implementation: When this function returns an
+ * initially computed root transform, at the time of executing the
+ * @FT_PaintGlyph operation, the contours should be retrieved using
+ * @FT_Load_Glyph at unscaled, untransformed size. This is because the
+ * root transform applied to the graphics context will take care of
+ * correct scaling.
+ *
+ * Alternatively, to allow hinting of contours, at the time of executing
+ * @FT_Load_Glyph, the current graphics context transformation matrix
+ * can be decomposed into a scaling matrix and a remainder, and
+ * @FT_Load_Glyph can be used to retrieve the contours at scaled size.
+ * Care must then be taken to blit or clip to the graphics context with
+ * taking this remainder transformation into account.
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * base_glyph ::
+ * The glyph index for which to retrieve the root paint table.
+ *
+ * root_transform ::
+ * Specifies whether an initially computed root is returned by the
+ * @FT_PaintTransform operation to account for the activated size
+ * (see @FT_Activate_Size) and the configured transform and translate
+ * (see @FT_Set_Transform).
+ *
+ * This root transform is returned before nodes of the glyph graph of
+ * the font are returned. Subsequent @FT_COLR_Paint structures
+ * contain unscaled and untransformed values. The inserted root
+ * transform enables the client application to apply an initial
+ * transform to its graphics context. When executing subsequent
+ * FT_COLR_Paint operations, values from @FT_COLR_Paint operations
+ * will ultimately be correctly scaled because of the root transform
+ * applied to the graphics context. Use
+ * @FT_COLOR_INCLUDE_ROOT_TRANSFORM to include the root transform, use
+ * @FT_COLOR_NO_ROOT_TRANSFORM to not include it. The latter may be
+ * useful when traversing the 'COLR' v1 glyph graph and reaching a
+ * @FT_PaintColrGlyph. When recursing into @FT_PaintColrGlyph and
+ * painting that inline, no additional root transform is needed as it
+ * has already been applied to the graphics context at the beginning
+ * of drawing this glyph.
+ *
+ * @output:
+ * paint ::
+ * The @FT_OpaquePaint object that references the actual paint table.
+ *
+ * The respective actual @FT_COLR_Paint object is retrieved via
+ * @FT_Get_Paint.
+ *
+ * @return:
+ * Value~1 if everything is OK. If no color glyph is found, or the root
+ * paint could not be retrieved, value~0 gets returned. In case of an
+ * error, value~0 is returned also.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Color_Glyph_Paint( FT_Face face,
+ FT_UInt base_glyph,
+ FT_Color_Root_Transform root_transform,
+ FT_OpaquePaint* paint );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Color_Glyph_ClipBox
+ *
+ * @description:
+ * Search for a 'COLR' v1 clip box for the specified `base_glyph` and
+ * fill the `clip_box` parameter with the 'COLR' v1 'ClipBox' information
+ * if one is found.
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * base_glyph ::
+ * The glyph index for which to retrieve the clip box.
+ *
+ * @output:
+ * clip_box ::
+ * The clip box for the requested `base_glyph` if one is found. The
+ * clip box is computed taking scale and transformations configured on
+ * the @FT_Face into account. @FT_ClipBox contains @FT_Vector values
+ * in 26.6 format.
+ *
+ * @return:
+ * Value~1 if a clip box is found. If no clip box is found or an error
+ * occured, value~0 is returned.
+ *
+ * @note:
+ * To retrieve the clip box in font units, reset scale to units-per-em
+ * and remove transforms configured using @FT_Set_Transform.
+ *
+ * @since:
+ * 2.12 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Color_Glyph_ClipBox( FT_Face face,
+ FT_UInt base_glyph,
+ FT_ClipBox* clip_box );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Paint_Layers
+ *
+ * @description:
+ * Access the layers of a `PaintColrLayers` table.
+ *
+ * If the root paint of a color glyph, or a nested paint of a 'COLR'
+ * glyph is a `PaintColrLayers` table, this function retrieves the
+ * layers of the `PaintColrLayers` table.
+ *
+ * The @FT_PaintColrLayers object contains an @FT_LayerIterator, which
+ * is used here to iterate over the layers. Each layer is returned as
+ * an @FT_OpaquePaint object, which then can be used with @FT_Get_Paint
+ * to retrieve the actual paint object.
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * @inout:
+ * iterator ::
+ * The @FT_LayerIterator from an @FT_PaintColrLayers object, for which
+ * the layers are to be retrieved. The internal state of the iterator
+ * is incremented after one call to this function for retrieving one
+ * layer.
+ *
+ * @output:
+ * paint ::
+ * The @FT_OpaquePaint object that references the actual paint table.
+ * The respective actual @FT_COLR_Paint object is retrieved via
+ * @FT_Get_Paint.
+ *
+ * @return:
+ * Value~1 if everything is OK. Value~0 gets returned when the paint
+ * object can not be retrieved or any other error occurs.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Paint_Layers( FT_Face face,
+ FT_LayerIterator* iterator,
+ FT_OpaquePaint* paint );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Colorline_Stops
+ *
+ * @description:
+ * This is an interface to color gradient information in a 'COLR' v1
+ * table in OpenType fonts to iteratively retrieve the gradient and
+ * solid fill information for colored glyph layers for a specified glyph
+ * ID.
+ *
+ * https://github.com/googlefonts/colr-gradients-spec
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * @inout:
+ * iterator ::
+ * The retrieved @FT_ColorStopIterator, configured on an @FT_ColorLine,
+ * which in turn got retrieved via paint information in
+ * @FT_PaintLinearGradient or @FT_PaintRadialGradient.
+ *
+ * @output:
+ * color_stop ::
+ * Color index and alpha value for the retrieved color stop.
+ *
+ * @return:
+ * Value~1 if everything is OK. If there are no more color stops,
+ * value~0 gets returned. In case of an error, value~0 is returned
+ * also.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Colorline_Stops( FT_Face face,
+ FT_ColorStop* color_stop,
+ FT_ColorStopIterator* iterator );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Get_Paint
+ *
+ * @description:
+ * Access the details of a paint using an @FT_OpaquePaint opaque paint
+ * object, which internally stores the offset to the respective `Paint`
+ * object in the 'COLR' table.
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * opaque_paint ::
+ * The opaque paint object for which the underlying @FT_COLR_Paint
+ * data is to be retrieved.
+ *
+ * @output:
+ * paint ::
+ * The specific @FT_COLR_Paint object containing information coming
+ * from one of the font's `Paint*` tables.
+ *
+ * @return:
+ * Value~1 if everything is OK. Value~0 if no details can be found for
+ * this paint or any other error occured.
+ *
+ * @since:
+ * 2.11 -- **currently experimental only!** There might be changes
+ * without retaining backward compatibility of both the API and ABI.
+ *
+ */
+ FT_EXPORT( FT_Bool )
+ FT_Get_Paint( FT_Face face,
+ FT_OpaquePaint opaque_paint,
+ FT_COLR_Paint* paint );
+
/* */
diff --git a/thirdparty/freetype/include/freetype/ftdriver.h b/thirdparty/freetype/include/freetype/ftdriver.h
index 804ec34a39..4936639056 100644
--- a/thirdparty/freetype/include/freetype/ftdriver.h
+++ b/thirdparty/freetype/include/freetype/ftdriver.h
@@ -4,7 +4,7 @@
*
* FreeType API for controlling driver modules (specification only).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -53,10 +53,10 @@ FT_BEGIN_HEADER
* reasons.
*
* Available properties are @increase-x-height, @no-stem-darkening
- * (experimental), @darkening-parameters (experimental), @warping
- * (experimental), @glyph-to-script-map (experimental), @fallback-script
- * (experimental), and @default-script (experimental), as documented in
- * the @properties section.
+ * (experimental), @darkening-parameters (experimental),
+ * @glyph-to-script-map (experimental), @fallback-script (experimental),
+ * and @default-script (experimental), as documented in the @properties
+ * section.
*
*/
@@ -84,15 +84,15 @@ FT_BEGIN_HEADER
* @properties section.
*
*
- * **Hinting and antialiasing principles of the new engine**
+ * **Hinting and anti-aliasing principles of the new engine**
*
* The rasterizer is positioning horizontal features (e.g., ascender
* height & x-height, or crossbars) on the pixel grid and minimizing the
- * amount of antialiasing applied to them, while placing vertical
+ * amount of anti-aliasing applied to them, while placing vertical
* features (vertical stems) on the pixel grid without hinting, thus
* representing the stem position and weight accurately. Sometimes the
* vertical stems may be only partially black. In this context,
- * 'antialiasing' means that stems are not positioned exactly on pixel
+ * 'anti-aliasing' means that stems are not positioned exactly on pixel
* borders, causing a fuzzy appearance.
*
* There are two principles behind this approach.
@@ -108,7 +108,7 @@ FT_BEGIN_HEADER
* sizes are comparable to kerning values and thus would be noticeable
* (and distracting) while reading if hinting were applied.
*
- * One of the reasons to not hint horizontally is antialiasing for LCD
+ * One of the reasons to not hint horizontally is anti-aliasing for LCD
* screens: The pixel geometry of modern displays supplies three vertical
* subpixels as the eye moves horizontally across each visible pixel. On
* devices where we can be certain this characteristic is present a
@@ -116,7 +116,7 @@ FT_BEGIN_HEADER
* weight. In Western writing systems this turns out to be the more
* critical direction anyway; the weights and spacing of vertical stems
* (see above) are central to Armenian, Cyrillic, Greek, and Latin type
- * designs. Even when the rasterizer uses greyscale antialiasing instead
+ * designs. Even when the rasterizer uses greyscale anti-aliasing instead
* of color (a necessary compromise when one doesn't know the screen
* characteristics), the unhinted vertical features preserve the design's
* weight and spacing much better than aliased type would.
@@ -362,12 +362,8 @@ FT_BEGIN_HEADER
* The same holds for the Type~1 and CID modules if compiled with
* `T1_CONFIG_OPTION_OLD_ENGINE`.
*
- * For the 'cff' module, the default engine is 'freetype' if
- * `CFF_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe' otherwise.
- *
- * For both the 'type1' and 't1cid' modules, the default engine is
- * 'freetype' if `T1_CONFIG_OPTION_OLD_ENGINE` is defined, and 'adobe'
- * otherwise.
+ * For the 'cff' module, the default engine is 'adobe'. For both the
+ * 'type1' and 't1cid' modules, the default engine is 'adobe', too.
*
* @note:
* This property can be used with @FT_Property_Get also.
@@ -1166,48 +1162,18 @@ FT_BEGIN_HEADER
* warping
*
* @description:
- * **Experimental only**
+ * **Obsolete**
*
- * If FreeType gets compiled with option `AF_CONFIG_OPTION_USE_WARPER` to
- * activate the warp hinting code in the auto-hinter, this property
- * switches warping on and off.
+ * This property was always experimental and probably never worked
+ * correctly. It was entirely removed from the FreeType~2 sources. This
+ * entry is only here for historical reference.
*
- * Warping only works in 'normal' auto-hinting mode replacing it. The
- * idea of the code is to slightly scale and shift a glyph along the
+ * Warping only worked in 'normal' auto-hinting mode replacing it. The
+ * idea of the code was to slightly scale and shift a glyph along the
* non-hinted dimension (which is usually the horizontal axis) so that as
- * much of its segments are aligned (more or less) to the grid. To find
+ * much of its segments were aligned (more or less) to the grid. To find
* out a glyph's optimal scaling and shifting value, various parameter
- * combinations are tried and scored.
- *
- * By default, warping is off.
- *
- * @note:
- * This property can be used with @FT_Property_Get also.
- *
- * This property can be set via the `FREETYPE_PROPERTIES` environment
- * variable (using values 1 and 0 for 'on' and 'off', respectively).
- *
- * The warping code can also change advance widths. Have a look at the
- * `lsb_delta` and `rsb_delta` fields in the @FT_GlyphSlotRec structure
- * for details on improving inter-glyph distances while rendering.
- *
- * Since warping is a global property of the auto-hinter it is best to
- * change its value before rendering any face. Otherwise, you should
- * reload all faces that get auto-hinted in 'normal' hinting mode.
- *
- * @example:
- * This example shows how to switch on warping (omitting the error
- * handling).
- *
- * ```
- * FT_Library library;
- * FT_Bool warping = 1;
- *
- *
- * FT_Init_FreeType( &library );
- *
- * FT_Property_Set( library, "autofitter", "warping", &warping );
- * ```
+ * combinations were tried and scored.
*
* @since:
* 2.6
diff --git a/thirdparty/freetype/include/freetype/fterrdef.h b/thirdparty/freetype/include/freetype/fterrdef.h
index 895d2d4dc8..6e9c4ccb97 100644
--- a/thirdparty/freetype/include/freetype/fterrdef.h
+++ b/thirdparty/freetype/include/freetype/fterrdef.h
@@ -4,7 +4,7 @@
*
* FreeType error codes (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/fterrors.h b/thirdparty/freetype/include/freetype/fterrors.h
index 60a637c77c..151941dde0 100644
--- a/thirdparty/freetype/include/freetype/fterrors.h
+++ b/thirdparty/freetype/include/freetype/fterrors.h
@@ -4,7 +4,7 @@
*
* FreeType error code handling (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -281,6 +281,8 @@ FT_BEGIN_HEADER
FT_EXPORT( const char* )
FT_Error_String( FT_Error error_code );
+ /* */
+
FT_END_HEADER
diff --git a/thirdparty/freetype/include/freetype/ftfntfmt.h b/thirdparty/freetype/include/freetype/ftfntfmt.h
index f803349cd7..8e68a4a3ac 100644
--- a/thirdparty/freetype/include/freetype/ftfntfmt.h
+++ b/thirdparty/freetype/include/freetype/ftfntfmt.h
@@ -4,7 +4,7 @@
*
* Support functions for font formats.
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftgasp.h b/thirdparty/freetype/include/freetype/ftgasp.h
index 6b76882c74..76c45eb3b1 100644
--- a/thirdparty/freetype/include/freetype/ftgasp.h
+++ b/thirdparty/freetype/include/freetype/ftgasp.h
@@ -4,7 +4,7 @@
*
* Access of TrueType's 'gasp' table (specification).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftglyph.h b/thirdparty/freetype/include/freetype/ftglyph.h
index 704619e3d0..26b32ed6be 100644
--- a/thirdparty/freetype/include/freetype/ftglyph.h
+++ b/thirdparty/freetype/include/freetype/ftglyph.h
@@ -4,7 +4,7 @@
*
* FreeType convenience functions to handle glyphs (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -337,9 +337,9 @@ FT_BEGIN_HEADER
* vector.
*/
FT_EXPORT( FT_Error )
- FT_Glyph_Transform( FT_Glyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta );
+ FT_Glyph_Transform( FT_Glyph glyph,
+ const FT_Matrix* matrix,
+ const FT_Vector* delta );
/**************************************************************************
@@ -569,10 +569,10 @@ FT_BEGIN_HEADER
* ```
*/
FT_EXPORT( FT_Error )
- FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
- FT_Render_Mode render_mode,
- FT_Vector* origin,
- FT_Bool destroy );
+ FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
+ FT_Render_Mode render_mode,
+ const FT_Vector* origin,
+ FT_Bool destroy );
/**************************************************************************
diff --git a/thirdparty/freetype/include/freetype/ftgxval.h b/thirdparty/freetype/include/freetype/ftgxval.h
index 354460a9a7..21bbbde2ae 100644
--- a/thirdparty/freetype/include/freetype/ftgxval.h
+++ b/thirdparty/freetype/include/freetype/ftgxval.h
@@ -4,7 +4,7 @@
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO, Redhat K.K,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/include/freetype/ftgzip.h b/thirdparty/freetype/include/freetype/ftgzip.h
index ec5939a191..ba82baba64 100644
--- a/thirdparty/freetype/include/freetype/ftgzip.h
+++ b/thirdparty/freetype/include/freetype/ftgzip.h
@@ -4,7 +4,7 @@
*
* Gzip-compressed stream support.
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftimage.h b/thirdparty/freetype/include/freetype/ftimage.h
index 74911620d2..88533b8409 100644
--- a/thirdparty/freetype/include/freetype/ftimage.h
+++ b/thirdparty/freetype/include/freetype/ftimage.h
@@ -5,7 +5,7 @@
* FreeType glyph image formats and default raster interface
* (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -28,11 +28,6 @@
#define FTIMAGE_H_
- /* STANDALONE_ is from ftgrays.c */
-#ifndef STANDALONE_
-#endif
-
-
FT_BEGIN_HEADER
@@ -201,6 +196,11 @@ FT_BEGIN_HEADER
#define ft_pixel_mode_pal2 FT_PIXEL_MODE_GRAY2
#define ft_pixel_mode_pal4 FT_PIXEL_MODE_GRAY4
+ /* */
+
+ /* For debugging, the @FT_Pixel_Mode enumeration must stay in sync */
+ /* with the `pixel_modes` array in file `ftobjs.c`. */
+
/**************************************************************************
*
@@ -695,11 +695,13 @@ FT_BEGIN_HEADER
* to get a simple enumeration without assigning special numbers.
*/
#ifndef FT_IMAGE_TAG
-#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \
- value = ( ( (unsigned long)_x1 << 24 ) | \
- ( (unsigned long)_x2 << 16 ) | \
- ( (unsigned long)_x3 << 8 ) | \
- (unsigned long)_x4 )
+
+#define FT_IMAGE_TAG( value, _x1, _x2, _x3, _x4 ) \
+ value = ( ( FT_STATIC_BYTE_CAST( unsigned long, _x1 ) << 24 ) | \
+ ( FT_STATIC_BYTE_CAST( unsigned long, _x2 ) << 16 ) | \
+ ( FT_STATIC_BYTE_CAST( unsigned long, _x3 ) << 8 ) | \
+ FT_STATIC_BYTE_CAST( unsigned long, _x4 ) )
+
#endif /* FT_IMAGE_TAG */
@@ -772,17 +774,6 @@ FT_BEGIN_HEADER
/*************************************************************************/
- /**************************************************************************
- *
- * A raster is a scan converter, in charge of rendering an outline into a
- * bitmap. This section contains the public API for rasters.
- *
- * Note that in FreeType 2, all rasters are now encapsulated within
- * specific modules called 'renderers'. See `ftrender.h` for more details
- * on renderers.
- *
- */
-
/**************************************************************************
*
@@ -796,16 +787,35 @@ FT_BEGIN_HEADER
* How vectorial outlines are converted into bitmaps and pixmaps.
*
* @description:
- * This section contains technical definitions.
+ * A raster or a rasterizer is a scan converter in charge of producing a
+ * pixel coverage bitmap that can be used as an alpha channel when
+ * compositing a glyph with a background. FreeType comes with two
+ * rasterizers: bilevel `raster1` and anti-aliased `smooth` are two
+ * separate modules. They are usually called from the high-level
+ * @FT_Load_Glyph or @FT_Render_Glyph functions and produce the entire
+ * coverage bitmap at once, while staying largely invisible to users.
+ *
+ * Instead of working with complete coverage bitmaps, it is also possible
+ * to intercept consecutive pixel runs on the same scanline with the same
+ * coverage, called _spans_, and process them individually. Only the
+ * `smooth` rasterizer permits this when calling @FT_Outline_Render with
+ * @FT_Raster_Params as described below.
+ *
+ * Working with either complete bitmaps or spans it is important to think
+ * of them as colorless coverage objects suitable as alpha channels to
+ * blend arbitrary colors with a background. For best results, it is
+ * recommended to use gamma correction, too.
+ *
+ * This section also describes the public API needed to set up alternative
+ * @FT_Renderer modules.
*
* @order:
- * FT_Raster
* FT_Span
* FT_SpanFunc
- *
* FT_Raster_Params
* FT_RASTER_FLAG_XXX
*
+ * FT_Raster
* FT_Raster_NewFunc
* FT_Raster_DoneFunc
* FT_Raster_ResetFunc
@@ -818,24 +828,12 @@ FT_BEGIN_HEADER
/**************************************************************************
*
- * @type:
- * FT_Raster
- *
- * @description:
- * An opaque handle (pointer) to a raster object. Each object can be
- * used independently to convert an outline into a bitmap or pixmap.
- */
- typedef struct FT_RasterRec_* FT_Raster;
-
-
- /**************************************************************************
- *
* @struct:
* FT_Span
*
* @description:
- * A structure used to model a single span of gray pixels when rendering
- * an anti-aliased bitmap.
+ * A structure to model a single span of consecutive pixels when
+ * rendering an anti-aliased bitmap.
*
* @fields:
* x ::
@@ -852,8 +850,8 @@ FT_BEGIN_HEADER
* This structure is used by the span drawing callback type named
* @FT_SpanFunc that takes the y~coordinate of the span as a parameter.
*
- * The coverage value is always between 0 and 255. If you want less gray
- * values, the callback function has to reduce them.
+ * The anti-aliased rasterizer produces coverage values from 0 to 255,
+ * this is, from completely transparent to completely opaque.
*/
typedef struct FT_Span_
{
@@ -871,8 +869,8 @@ FT_BEGIN_HEADER
*
* @description:
* A function used as a call-back by the anti-aliased renderer in order
- * to let client applications draw themselves the gray pixel spans on
- * each scan line.
+ * to let client applications draw themselves the pixel spans on each
+ * scan line.
*
* @input:
* y ::
@@ -888,11 +886,12 @@ FT_BEGIN_HEADER
* User-supplied data that is passed to the callback.
*
* @note:
- * This callback allows client applications to directly render the gray
- * spans of the anti-aliased bitmap to any kind of surfaces.
+ * This callback allows client applications to directly render the spans
+ * of the anti-aliased bitmap to any kind of surfaces.
*
* This can be used to write anti-aliased outlines directly to a given
- * background bitmap, and even perform translucency.
+ * background bitmap using alpha compositing. It can also be used for
+ * oversampling and averaging.
*/
typedef void
(*FT_SpanFunc)( int y,
@@ -962,11 +961,17 @@ FT_BEGIN_HEADER
* will be clipped to a box specified in the `clip_box` field of the
* @FT_Raster_Params structure. Otherwise, the `clip_box` is
* effectively set to the bounding box and all spans are generated.
+ *
+ * FT_RASTER_FLAG_SDF ::
+ * This flag is set to indicate that a signed distance field glyph
+ * image should be generated. This is only used while rendering with
+ * the @FT_RENDER_MODE_SDF render mode.
*/
#define FT_RASTER_FLAG_DEFAULT 0x0
#define FT_RASTER_FLAG_AA 0x1
#define FT_RASTER_FLAG_DIRECT 0x2
#define FT_RASTER_FLAG_CLIP 0x4
+#define FT_RASTER_FLAG_SDF 0x8
/* these constants are deprecated; use the corresponding */
/* `FT_RASTER_FLAG_XXX` values instead */
@@ -1049,6 +1054,23 @@ FT_BEGIN_HEADER
/**************************************************************************
*
+ * @type:
+ * FT_Raster
+ *
+ * @description:
+ * An opaque handle (pointer) to a raster object. Each object can be
+ * used independently to convert an outline into a bitmap or pixmap.
+ *
+ * @note:
+ * In FreeType 2, all rasters are now encapsulated within specific
+ * @FT_Renderer modules and only used in their context.
+ *
+ */
+ typedef struct FT_RasterRec_* FT_Raster;
+
+
+ /**************************************************************************
+ *
* @functype:
* FT_Raster_NewFunc
*
diff --git a/thirdparty/freetype/include/freetype/ftincrem.h b/thirdparty/freetype/include/freetype/ftincrem.h
index f67655eda0..229b947bd8 100644
--- a/thirdparty/freetype/include/freetype/ftincrem.h
+++ b/thirdparty/freetype/include/freetype/ftincrem.h
@@ -4,7 +4,7 @@
*
* FreeType incremental loading (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -213,9 +213,14 @@ FT_BEGIN_HEADER
*
* @description:
* A function used to retrieve the basic metrics of a given glyph index
- * before accessing its data. This is necessary because, in certain
- * formats like TrueType, the metrics are stored in a different place
- * from the glyph images proper.
+ * before accessing its data. This allows for handling font types such
+ * as PCL~XL Format~1, Class~2 downloaded TrueType fonts, where the glyph
+ * metrics (`hmtx` and `vmtx` tables) are permitted to be omitted from
+ * the font, and the relevant metrics included in the header of the glyph
+ * outline data. Importantly, this is not intended to allow custom glyph
+ * metrics (for example, Postscript Metrics dictionaries), because that
+ * conflicts with the requirements of outline hinting. Such custom
+ * metrics must be handled separately, by the calling application.
*
* @input:
* incremental ::
@@ -235,7 +240,7 @@ FT_BEGIN_HEADER
*
* @output:
* ametrics ::
- * The replacement glyph metrics in font units.
+ * The glyph metrics in font units.
*
*/
typedef FT_Error
@@ -264,7 +269,7 @@ FT_BEGIN_HEADER
*
* get_glyph_metrics ::
* The function to get glyph metrics. May be null if the font does not
- * provide overriding glyph metrics.
+ * require it.
*
*/
typedef struct FT_Incremental_FuncsRec_
diff --git a/thirdparty/freetype/include/freetype/ftlcdfil.h b/thirdparty/freetype/include/freetype/ftlcdfil.h
index c6995f2ff7..18e2544175 100644
--- a/thirdparty/freetype/include/freetype/ftlcdfil.h
+++ b/thirdparty/freetype/include/freetype/ftlcdfil.h
@@ -5,7 +5,7 @@
* FreeType API for color filtering of subpixel bitmap glyphs
* (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -44,7 +44,7 @@ FT_BEGIN_HEADER
* API to control subpixel rendering.
*
* @description:
- * FreeType provides two alternative subpixel rendering technologies.
+ * FreeType provides two alternative subpixel rendering technologies.
* Should you define `FT_CONFIG_OPTION_SUBPIXEL_RENDERING` in your
* `ftoption.h` file, this enables ClearType-style rendering.
* Otherwise, Harmony LCD rendering is enabled. These technologies are
@@ -55,13 +55,12 @@ FT_BEGIN_HEADER
* ClearType-style LCD rendering exploits the color-striped structure of
* LCD pixels, increasing the available resolution in the direction of
* the stripe (usually horizontal RGB) by a factor of~3. Using the
- * subpixels coverages unfiltered can create severe color fringes
+ * subpixel coverages unfiltered can create severe color fringes
* especially when rendering thin features. Indeed, to produce
* black-on-white text, the nearby color subpixels must be dimmed
- * equally.
- *
- * A good 5-tap FIR filter should be applied to subpixel coverages
- * regardless of pixel boundaries and should have these properties:
+ * evenly. Therefore, an equalizing 5-tap FIR filter should be applied
+ * to subpixel coverages regardless of pixel boundaries and should have
+ * these properties:
*
* 1. It should be symmetrical, like {~a, b, c, b, a~}, to avoid
* any shifts in appearance.
@@ -84,7 +83,7 @@ FT_BEGIN_HEADER
* Harmony LCD rendering is suitable to panels with any regular subpixel
* structure, not just monitors with 3 color striped subpixels, as long
* as the color subpixels have fixed positions relative to the pixel
- * center. In this case, each color channel is then rendered separately
+ * center. In this case, each color channel can be rendered separately
* after shifting the outline opposite to the subpixel shift so that the
* coverage maps are aligned. This method is immune to color fringes
* because the shifts do not change integral coverage.
@@ -101,9 +100,9 @@ FT_BEGIN_HEADER
* clockwise. Harmony with default LCD geometry is equivalent to
* ClearType with light filter.
*
- * As a result of ClearType filtering or Harmony rendering, the
- * dimensions of LCD bitmaps can be either wider or taller than the
- * dimensions of the corresponding outline with regard to the pixel grid.
+ * As a result of ClearType filtering or Harmony shifts, the resulting
+ * dimensions of LCD bitmaps can be slightly wider or taller than the
+ * dimensions the original outline with regard to the pixel grid.
* For example, for @FT_RENDER_MODE_LCD, the filter adds 2~subpixels to
* the left, and 2~subpixels to the right. The bitmap offset values are
* adjusted accordingly, so clients shouldn't need to modify their layout
diff --git a/thirdparty/freetype/include/freetype/ftlist.h b/thirdparty/freetype/include/freetype/ftlist.h
index 4588922706..55f015977a 100644
--- a/thirdparty/freetype/include/freetype/ftlist.h
+++ b/thirdparty/freetype/include/freetype/ftlist.h
@@ -4,7 +4,7 @@
*
* Generic list support for FreeType (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftlogging.h b/thirdparty/freetype/include/freetype/ftlogging.h
new file mode 100644
index 0000000000..a558b85faf
--- /dev/null
+++ b/thirdparty/freetype/include/freetype/ftlogging.h
@@ -0,0 +1,184 @@
+/****************************************************************************
+ *
+ * ftlogging.h
+ *
+ * Additional debugging APIs.
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef FTLOGGING_H_
+#define FTLOGGING_H_
+
+
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+
+
+FT_BEGIN_HEADER
+
+
+ /**************************************************************************
+ *
+ * @section:
+ * debugging_apis
+ *
+ * @title:
+ * External Debugging APIs
+ *
+ * @abstract:
+ * Public APIs to control the `FT_DEBUG_LOGGING` macro.
+ *
+ * @description:
+ * This section contains the declarations of public functions that
+ * enables fine control of what the `FT_DEBUG_LOGGING` macro outputs.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Trace_Set_Level
+ *
+ * @description:
+ * Change the levels of tracing components of FreeType at run time.
+ *
+ * @input:
+ * tracing_level ::
+ * New tracing value.
+ *
+ * @example:
+ * The following call makes FreeType trace everything but the 'memory'
+ * component.
+ *
+ * ```
+ * FT_Trace_Set_Level( "any:7 memory:0 );
+ * ```
+ *
+ * @note:
+ * This function does nothing if compilation option `FT_DEBUG_LOGGING`
+ * isn't set.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ FT_EXPORT( void )
+ FT_Trace_Set_Level( const char* tracing_level );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Trace_Set_Default_Level
+ *
+ * @description:
+ * Reset tracing value of FreeType's components to the default value
+ * (i.e., to the value of the `FT2_DEBUG` environment value or to NULL
+ * if `FT2_DEBUG` is not set).
+ *
+ * @note:
+ * This function does nothing if compilation option `FT_DEBUG_LOGGING`
+ * isn't set.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ FT_EXPORT( void )
+ FT_Trace_Set_Default_Level( void );
+
+
+ /**************************************************************************
+ *
+ * @functype:
+ * FT_Custom_Log_Handler
+ *
+ * @description:
+ * A function typedef that is used to handle the logging of tracing and
+ * debug messages on a file system.
+ *
+ * @input:
+ * ft_component ::
+ * The name of `FT_COMPONENT` from which the current debug or error
+ * message is produced.
+ *
+ * fmt ::
+ * Actual debug or tracing message.
+ *
+ * args::
+ * Arguments of debug or tracing messages.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ typedef void
+ (*FT_Custom_Log_Handler)( const char* ft_component,
+ const char* fmt,
+ va_list args );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Set_Log_Handler
+ *
+ * @description:
+ * A function to set a custom log handler.
+ *
+ * @input:
+ * handler ::
+ * New logging function.
+ *
+ * @note:
+ * This function does nothing if compilation option `FT_DEBUG_LOGGING`
+ * isn't set.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ FT_EXPORT( void )
+ FT_Set_Log_Handler( FT_Custom_Log_Handler handler );
+
+
+ /**************************************************************************
+ *
+ * @function:
+ * FT_Set_Default_Log_Handler
+ *
+ * @description:
+ * A function to undo the effect of @FT_Set_Log_Handler, resetting the
+ * log handler to FreeType's built-in version.
+ *
+ * @note:
+ * This function does nothing if compilation option `FT_DEBUG_LOGGING`
+ * isn't set.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+ FT_EXPORT( void )
+ FT_Set_Default_Log_Handler( void );
+
+ /* */
+
+
+FT_END_HEADER
+
+#endif /* FTLOGGING_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/include/freetype/ftlzw.h b/thirdparty/freetype/include/freetype/ftlzw.h
index ae46ad6021..fce1c9c4bb 100644
--- a/thirdparty/freetype/include/freetype/ftlzw.h
+++ b/thirdparty/freetype/include/freetype/ftlzw.h
@@ -4,7 +4,7 @@
*
* LZW-compressed stream support.
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftmac.h b/thirdparty/freetype/include/freetype/ftmac.h
index c9de981845..607af9b589 100644
--- a/thirdparty/freetype/include/freetype/ftmac.h
+++ b/thirdparty/freetype/include/freetype/ftmac.h
@@ -4,7 +4,7 @@
*
* Additional Mac-specific API.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftmm.h b/thirdparty/freetype/include/freetype/ftmm.h
index d8781a8296..32579e997f 100644
--- a/thirdparty/freetype/include/freetype/ftmm.h
+++ b/thirdparty/freetype/include/freetype/ftmm.h
@@ -4,7 +4,7 @@
*
* FreeType Multiple Master font interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftmodapi.h b/thirdparty/freetype/include/freetype/ftmodapi.h
index 3f7ae82bab..b77d356de9 100644
--- a/thirdparty/freetype/include/freetype/ftmodapi.h
+++ b/thirdparty/freetype/include/freetype/ftmodapi.h
@@ -4,7 +4,7 @@
*
* FreeType modules public interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -45,10 +45,12 @@ FT_BEGIN_HEADER
*
* @description:
* The definitions below are used to manage modules within FreeType.
- * Modules can be added, upgraded, and removed at runtime. Additionally,
- * some module properties can be controlled also.
+ * Internal and external modules can be added, upgraded, and removed at
+ * runtime. For example, an alternative renderer or proprietary font
+ * driver can be registered and prioritized. Additionally, some module
+ * properties can also be controlled.
*
- * Here is a list of possible values of the `module_name` field in the
+ * Here is a list of existing values of the `module_name` field in the
* @FT_Module_Class structure.
*
* ```
@@ -86,6 +88,7 @@ FT_BEGIN_HEADER
* FT_Remove_Module
* FT_Add_Default_Modules
*
+ * FT_FACE_DRIVER_NAME
* FT_Property_Set
* FT_Property_Get
* FT_Set_Default_Properties
@@ -330,6 +333,27 @@ FT_BEGIN_HEADER
/**************************************************************************
*
+ * @macro:
+ * FT_FACE_DRIVER_NAME
+ *
+ * @description:
+ * A macro that retrieves the name of a font driver from a face object.
+ *
+ * @note:
+ * The font driver name is a valid `module_name` for @FT_Property_Set
+ * and @FT_Property_Get. This is not the same as @FT_Get_Font_Format.
+ *
+ * @since:
+ * 2.11
+ *
+ */
+#define FT_FACE_DRIVER_NAME( face ) \
+ ( ( *FT_REINTERPRET_CAST( FT_Module_Class**, \
+ ( face )->driver ) )->module_name )
+
+
+ /**************************************************************************
+ *
* @function:
* FT_Property_Set
*
@@ -485,8 +509,7 @@ FT_BEGIN_HEADER
*
* ```
* FREETYPE_PROPERTIES=truetype:interpreter-version=35 \
- * cff:no-stem-darkening=0 \
- * autofitter:warping=1
+ * cff:no-stem-darkening=0
* ```
*
* @inout:
diff --git a/thirdparty/freetype/include/freetype/ftmoderr.h b/thirdparty/freetype/include/freetype/ftmoderr.h
index f05fc53aa3..b417cd5ab7 100644
--- a/thirdparty/freetype/include/freetype/ftmoderr.h
+++ b/thirdparty/freetype/include/freetype/ftmoderr.h
@@ -4,7 +4,7 @@
*
* FreeType module error offsets (specification).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -171,6 +171,7 @@
FT_MODERRDEF( Type42, 0x1400, "Type 42 module" )
FT_MODERRDEF( Winfonts, 0x1500, "Windows FON/FNT module" )
FT_MODERRDEF( GXvalid, 0x1600, "GX validation module" )
+ FT_MODERRDEF( Sdf, 0x1700, "Signed distance field raster module" )
#ifdef FT_MODERR_END_LIST
diff --git a/thirdparty/freetype/include/freetype/ftotval.h b/thirdparty/freetype/include/freetype/ftotval.h
index 9c00ad30b9..00f9727859 100644
--- a/thirdparty/freetype/include/freetype/ftotval.h
+++ b/thirdparty/freetype/include/freetype/ftotval.h
@@ -4,7 +4,7 @@
*
* FreeType API for validating OpenType tables (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftoutln.h b/thirdparty/freetype/include/freetype/ftoutln.h
index 84e9b144c1..6bb5f809a9 100644
--- a/thirdparty/freetype/include/freetype/ftoutln.h
+++ b/thirdparty/freetype/include/freetype/ftoutln.h
@@ -5,7 +5,7 @@
* Support for the FT_Outline type used to store glyph shapes of
* most scalable font formats (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftparams.h b/thirdparty/freetype/include/freetype/ftparams.h
index 55ea2a3870..04a3f44126 100644
--- a/thirdparty/freetype/include/freetype/ftparams.h
+++ b/thirdparty/freetype/include/freetype/ftparams.h
@@ -4,7 +4,7 @@
*
* FreeType API for possible FT_Parameter tags (specification only).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftpfr.h b/thirdparty/freetype/include/freetype/ftpfr.h
index 9a5383f918..fbdb14c202 100644
--- a/thirdparty/freetype/include/freetype/ftpfr.h
+++ b/thirdparty/freetype/include/freetype/ftpfr.h
@@ -4,7 +4,7 @@
*
* FreeType API for accessing PFR-specific data (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftrender.h b/thirdparty/freetype/include/freetype/ftrender.h
index 8007951b37..48d489d496 100644
--- a/thirdparty/freetype/include/freetype/ftrender.h
+++ b/thirdparty/freetype/include/freetype/ftrender.h
@@ -4,7 +4,7 @@
*
* FreeType renderer modules public interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftsizes.h b/thirdparty/freetype/include/freetype/ftsizes.h
index a8682a30fb..22366393b8 100644
--- a/thirdparty/freetype/include/freetype/ftsizes.h
+++ b/thirdparty/freetype/include/freetype/ftsizes.h
@@ -4,7 +4,7 @@
*
* FreeType size objects management (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftsnames.h b/thirdparty/freetype/include/freetype/ftsnames.h
index 729e6ab069..c7f6581cb3 100644
--- a/thirdparty/freetype/include/freetype/ftsnames.h
+++ b/thirdparty/freetype/include/freetype/ftsnames.h
@@ -7,7 +7,7 @@
*
* This is _not_ used to retrieve glyph names!
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftstroke.h b/thirdparty/freetype/include/freetype/ftstroke.h
index a759c94dde..88b2a8a4ed 100644
--- a/thirdparty/freetype/include/freetype/ftstroke.h
+++ b/thirdparty/freetype/include/freetype/ftstroke.h
@@ -4,7 +4,7 @@
*
* FreeType path stroker (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftsynth.h b/thirdparty/freetype/include/freetype/ftsynth.h
index bdb4c5753e..861dcb5ac5 100644
--- a/thirdparty/freetype/include/freetype/ftsynth.h
+++ b/thirdparty/freetype/include/freetype/ftsynth.h
@@ -5,7 +5,7 @@
* FreeType synthesizing code for emboldening and slanting
* (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/ftsystem.h b/thirdparty/freetype/include/freetype/ftsystem.h
index 22aead7140..e5abb85a85 100644
--- a/thirdparty/freetype/include/freetype/ftsystem.h
+++ b/thirdparty/freetype/include/freetype/ftsystem.h
@@ -4,7 +4,7 @@
*
* FreeType low-level system interface definition (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/fttrigon.h b/thirdparty/freetype/include/freetype/fttrigon.h
index 2ce6b324c9..dbe7b0d388 100644
--- a/thirdparty/freetype/include/freetype/fttrigon.h
+++ b/thirdparty/freetype/include/freetype/fttrigon.h
@@ -4,7 +4,7 @@
*
* FreeType trigonometric functions (specification).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/fttypes.h b/thirdparty/freetype/include/freetype/fttypes.h
index aaeb9e8785..699bd003c0 100644
--- a/thirdparty/freetype/include/freetype/fttypes.h
+++ b/thirdparty/freetype/include/freetype/fttypes.h
@@ -4,7 +4,7 @@
*
* FreeType simple types definitions (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -413,7 +413,7 @@ FT_BEGIN_HEADER
typedef struct FT_Data_
{
const FT_Byte* pointer;
- FT_Int length;
+ FT_UInt length;
} FT_Data;
@@ -479,18 +479,17 @@ FT_BEGIN_HEADER
*
* @description:
* This macro converts four-letter tags that are used to label TrueType
- * tables into an unsigned long, to be used within FreeType.
+ * tables into an `FT_Tag` type, to be used within FreeType.
*
* @note:
* The produced values **must** be 32-bit integers. Don't redefine this
* macro.
*/
-#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
- (FT_Tag) \
- ( ( (FT_ULong)_x1 << 24 ) | \
- ( (FT_ULong)_x2 << 16 ) | \
- ( (FT_ULong)_x3 << 8 ) | \
- (FT_ULong)_x4 )
+#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
+ ( ( FT_STATIC_BYTE_CAST( FT_Tag, _x1 ) << 24 ) | \
+ ( FT_STATIC_BYTE_CAST( FT_Tag, _x2 ) << 16 ) | \
+ ( FT_STATIC_BYTE_CAST( FT_Tag, _x3 ) << 8 ) | \
+ FT_STATIC_BYTE_CAST( FT_Tag, _x4 ) )
/*************************************************************************/
@@ -588,7 +587,7 @@ FT_BEGIN_HEADER
#define FT_IS_EMPTY( list ) ( (list).head == 0 )
-#define FT_BOOL( x ) ( (FT_Bool)( (x) != 0 ) )
+#define FT_BOOL( x ) FT_STATIC_CAST( FT_Bool, (x) != 0 )
/* concatenate C tokens */
#define FT_ERR_XCAT( x, y ) x ## y
diff --git a/thirdparty/freetype/include/freetype/ftwinfnt.h b/thirdparty/freetype/include/freetype/ftwinfnt.h
index 786528c6ec..f30f447d84 100644
--- a/thirdparty/freetype/include/freetype/ftwinfnt.h
+++ b/thirdparty/freetype/include/freetype/ftwinfnt.h
@@ -4,7 +4,7 @@
*
* FreeType API for accessing Windows fnt-specific data.
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -55,7 +55,7 @@ FT_BEGIN_HEADER
* FT_WinFNT_ID_XXX
*
* @description:
- * A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec.
+ * A list of valid values for the `charset` byte in @FT_WinFNT_HeaderRec.
* Exact mapping tables for the various 'cpXXXX' encodings (except for
* 'cp1361') can be found at 'ftp://ftp.unicode.org/Public/' in the
* `MAPPINGS/VENDORS/MICSFT/WINDOWS` subdirectory. 'cp1361' is roughly a
diff --git a/thirdparty/freetype/include/freetype/internal/autohint.h b/thirdparty/freetype/include/freetype/internal/autohint.h
index 2a472e20b9..01585f5edf 100644
--- a/thirdparty/freetype/include/freetype/internal/autohint.h
+++ b/thirdparty/freetype/include/freetype/internal/autohint.h
@@ -4,7 +4,7 @@
*
* High-level 'autohint' module-specific interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/cffotypes.h b/thirdparty/freetype/include/freetype/internal/cffotypes.h
index a316fd1f30..a91dd556ca 100644
--- a/thirdparty/freetype/include/freetype/internal/cffotypes.h
+++ b/thirdparty/freetype/include/freetype/internal/cffotypes.h
@@ -4,7 +4,7 @@
*
* Basic OpenType/CFF object type definitions (specification).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/cfftypes.h b/thirdparty/freetype/include/freetype/internal/cfftypes.h
index f21167b1e5..99e8d41368 100644
--- a/thirdparty/freetype/include/freetype/internal/cfftypes.h
+++ b/thirdparty/freetype/include/freetype/internal/cfftypes.h
@@ -5,7 +5,7 @@
* Basic OpenType/CFF type definitions and interface (specification
* only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/compiler-macros.h b/thirdparty/freetype/include/freetype/internal/compiler-macros.h
index 97c18d3a21..d8b61b3dc9 100644
--- a/thirdparty/freetype/include/freetype/internal/compiler-macros.h
+++ b/thirdparty/freetype/include/freetype/internal/compiler-macros.h
@@ -4,7 +4,7 @@
*
* Compiler-specific macro definitions used internally by FreeType.
*
- * Copyright (C) 2020 by
+ * Copyright (C) 2020-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -71,12 +71,18 @@ FT_BEGIN_HEADER
*/
#define FT_DUMMY_STMNT FT_BEGIN_STMNT FT_END_STMNT
-#ifdef _WIN64
+#ifdef __UINTPTR_TYPE__
+ /*
+ * GCC and Clang both provide a `__UINTPTR_TYPE__` that can be used to
+ * avoid a dependency on `stdint.h`.
+ */
+# define FT_UINT_TO_POINTER( x ) (void *)(__UINTPTR_TYPE__)(x)
+#elif defined( _WIN64 )
/* only 64bit Windows uses the LLP64 data model, i.e., */
/* 32-bit integers, 64-bit pointers. */
-#define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x)
+# define FT_UINT_TO_POINTER( x ) (void *)(unsigned __int64)(x)
#else
-#define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x)
+# define FT_UINT_TO_POINTER( x ) (void *)(unsigned long)(x)
#endif
/*
@@ -216,79 +222,91 @@ FT_BEGIN_HEADER
#define FT_EXPORT_VAR( x ) FT_FUNCTION_DECLARATION( x )
#endif
- /* When compiling FreeType as a DLL or DSO with hidden visibility, */
- /* some systems/compilers need a special attribute in front OR after */
- /* the return type of function declarations. */
- /* */
- /* Two macros are used within the FreeType source code to define */
- /* exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`. */
- /* */
- /* - `FT_EXPORT( return_type )` */
- /* */
- /* is used in a function declaration, as in */
- /* */
- /* ``` */
- /* FT_EXPORT( FT_Error ) */
- /* FT_Init_FreeType( FT_Library* alibrary ); */
- /* ``` */
- /* */
- /* - `FT_EXPORT_DEF( return_type )` */
- /* */
- /* is used in a function definition, as in */
- /* */
- /* ``` */
- /* FT_EXPORT_DEF( FT_Error ) */
- /* FT_Init_FreeType( FT_Library* alibrary ) */
- /* { */
- /* ... some code ... */
- /* return FT_Err_Ok; */
- /* } */
- /* ``` */
- /* */
- /* You can provide your own implementation of `FT_EXPORT` and */
- /* `FT_EXPORT_DEF` here if you want. */
- /* */
- /* To export a variable, use `FT_EXPORT_VAR`. */
- /* */
+ /*
+ * When compiling FreeType as a DLL or DSO with hidden visibility,
+ * some systems/compilers need a special attribute in front OR after
+ * the return type of function declarations.
+ *
+ * Two macros are used within the FreeType source code to define
+ * exported library functions: `FT_EXPORT` and `FT_EXPORT_DEF`.
+ *
+ * - `FT_EXPORT( return_type )`
+ *
+ * is used in a function declaration, as in
+ *
+ * ```
+ * FT_EXPORT( FT_Error )
+ * FT_Init_FreeType( FT_Library* alibrary );
+ * ```
+ *
+ * - `FT_EXPORT_DEF( return_type )`
+ *
+ * is used in a function definition, as in
+ *
+ * ```
+ * FT_EXPORT_DEF( FT_Error )
+ * FT_Init_FreeType( FT_Library* alibrary )
+ * {
+ * ... some code ...
+ * return FT_Err_Ok;
+ * }
+ * ```
+ *
+ * You can provide your own implementation of `FT_EXPORT` and
+ * `FT_EXPORT_DEF` here if you want.
+ *
+ * To export a variable, use `FT_EXPORT_VAR`.
+ */
/* See `freetype/config/compiler_macros.h` for the `FT_EXPORT` definition */
#define FT_EXPORT_DEF( x ) FT_FUNCTION_DEFINITION( x )
- /* The following macros are needed to compile the library with a */
- /* C++ compiler and with 16bit compilers. */
- /* */
-
- /* This is special. Within C++, you must specify `extern "C"` for */
- /* functions which are used via function pointers, and you also */
- /* must do that for structures which contain function pointers to */
- /* assure C linkage -- it's not possible to have (local) anonymous */
- /* functions which are accessed by (global) function pointers. */
- /* */
- /* */
- /* FT_CALLBACK_DEF is used to _define_ a callback function, */
- /* located in the same source code file as the structure that uses */
- /* it. */
- /* */
- /* FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare */
- /* and define a callback function, respectively, in a similar way */
- /* as FT_BASE and FT_BASE_DEF work. */
- /* */
- /* FT_CALLBACK_TABLE is used to _declare_ a constant variable that */
- /* contains pointers to callback functions. */
- /* */
- /* FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable */
- /* that contains pointers to callback functions. */
- /* */
- /* */
- /* Some 16bit compilers have to redefine these macros to insert */
- /* the infamous `_cdecl` or `__fastcall` declarations. */
- /* */
+ /*
+ * The following macros are needed to compile the library with a
+ * C++ compiler and with 16bit compilers.
+ */
+
+ /*
+ * This is special. Within C++, you must specify `extern "C"` for
+ * functions which are used via function pointers, and you also
+ * must do that for structures which contain function pointers to
+ * assure C linkage -- it's not possible to have (local) anonymous
+ * functions which are accessed by (global) function pointers.
+ *
+ *
+ * FT_CALLBACK_DEF is used to _define_ a callback function,
+ * located in the same source code file as the structure that uses
+ * it. FT_COMPARE_DEF, in addition, ensures the `cdecl` calling
+ * convention on x86, required by the C library function `qsort`.
+ *
+ * FT_BASE_CALLBACK and FT_BASE_CALLBACK_DEF are used to declare
+ * and define a callback function, respectively, in a similar way
+ * as FT_BASE and FT_BASE_DEF work.
+ *
+ * FT_CALLBACK_TABLE is used to _declare_ a constant variable that
+ * contains pointers to callback functions.
+ *
+ * FT_CALLBACK_TABLE_DEF is used to _define_ a constant variable
+ * that contains pointers to callback functions.
+ *
+ *
+ * Some 16bit compilers have to redefine these macros to insert
+ * the infamous `_cdecl` or `__fastcall` declarations.
+ */
#ifdef __cplusplus
#define FT_CALLBACK_DEF( x ) extern "C" x
#else
#define FT_CALLBACK_DEF( x ) static x
#endif
+#if defined( __i386__ )
+#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __attribute__(( cdecl ))
+#elif defined( _M_IX86 )
+#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x ) __cdecl
+#else
+#define FT_COMPARE_DEF( x ) FT_CALLBACK_DEF( x )
+#endif
+
#define FT_BASE_CALLBACK( x ) FT_FUNCTION_DECLARATION( x )
#define FT_BASE_CALLBACK_DEF( x ) FT_FUNCTION_DEFINITION( x )
diff --git a/thirdparty/freetype/include/freetype/internal/ftcalc.h b/thirdparty/freetype/include/freetype/internal/ftcalc.h
index c65307472f..f88e055318 100644
--- a/thirdparty/freetype/include/freetype/internal/ftcalc.h
+++ b/thirdparty/freetype/include/freetype/internal/ftcalc.h
@@ -4,7 +4,7 @@
*
* Arithmetic computations (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -359,8 +359,8 @@ FT_BEGIN_HEADER
#ifndef FT_CONFIG_OPTION_NO_ASSEMBLER
-#if defined( __GNUC__ ) && \
- ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) )
+#if defined( __clang__ ) || ( defined( __GNUC__ ) && \
+ ( __GNUC__ > 3 || ( __GNUC__ == 3 && __GNUC_MINOR__ >= 4 ) ) )
#if FT_SIZEOF_INT == 4
@@ -370,12 +370,25 @@ FT_BEGIN_HEADER
#define FT_MSB( x ) ( 31 - __builtin_clzl( x ) )
-#endif /* __GNUC__ */
+#endif
+#elif defined( _MSC_VER ) && _MSC_VER >= 1400
-#elif defined( _MSC_VER ) && ( _MSC_VER >= 1400 )
+#if defined( _WIN32_WCE )
-#if FT_SIZEOF_INT == 4
+#include <cmnintrin.h>
+#pragma intrinsic( _CountLeadingZeros )
+
+#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
+
+#elif defined( _M_ARM64 ) || defined( _M_ARM )
+
+#include <intrin.h>
+#pragma intrinsic( _CountLeadingZeros )
+
+#define FT_MSB( x ) ( 31 - _CountLeadingZeros( x ) )
+
+#elif defined( _M_IX86 ) || defined( _M_AMD64 ) || defined( _M_IA64 )
#include <intrin.h>
#pragma intrinsic( _BitScanReverse )
@@ -391,15 +404,27 @@ FT_BEGIN_HEADER
return (FT_Int32)where;
}
-#define FT_MSB( x ) ( FT_MSB_i386( x ) )
+#define FT_MSB( x ) FT_MSB_i386( x )
#endif
-#endif /* _MSC_VER */
+#elif defined( __DECC ) || defined( __DECCXX )
+
+#include <builtins.h>
+
+#define FT_MSB( x ) (FT_Int)( 63 - _leadz( x ) )
+#elif defined( _CRAYC )
+
+#include <intrinsics.h>
+
+#define FT_MSB( x ) (FT_Int)( 31 - _leadz32( x ) )
+
+#endif /* FT_MSB macro definitions */
#endif /* !FT_CONFIG_OPTION_NO_ASSEMBLER */
+
#ifndef FT_MSB
FT_BASE( FT_Int )
@@ -487,7 +512,7 @@ FT_BEGIN_HEADER
#define NEG_INT32( a ) \
(FT_Int32)( (FT_UInt32)0 - (FT_UInt32)(a) )
-#ifdef FT_LONG64
+#ifdef FT_INT64
#define ADD_INT64( a, b ) \
(FT_Int64)( (FT_UInt64)(a) + (FT_UInt64)(b) )
@@ -498,7 +523,7 @@ FT_BEGIN_HEADER
#define NEG_INT64( a ) \
(FT_Int64)( (FT_UInt64)0 - (FT_UInt64)(a) )
-#endif /* FT_LONG64 */
+#endif /* FT_INT64 */
FT_END_HEADER
diff --git a/thirdparty/freetype/include/freetype/internal/ftdebug.h b/thirdparty/freetype/include/freetype/internal/ftdebug.h
index df5357ad55..5e8d9294a2 100644
--- a/thirdparty/freetype/include/freetype/internal/ftdebug.h
+++ b/thirdparty/freetype/include/freetype/internal/ftdebug.h
@@ -4,7 +4,7 @@
*
* Debugging and logging component (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -31,9 +31,24 @@
#include "compiler-macros.h"
+#ifdef FT_DEBUG_LOGGING
+#define DLG_STATIC
+#include <dlg/output.h>
+#include <dlg/dlg.h>
+
+#include <freetype/ftlogging.h>
+#endif /* FT_DEBUG_LOGGING */
+
FT_BEGIN_HEADER
+ /* force the definition of FT_DEBUG_LEVEL_TRACE if FT_DEBUG_LOGGING is */
+ /* already defined. */
+ /* */
+#ifdef FT_DEBUG_LOGGING
+#undef FT_DEBUG_LEVEL_TRACE
+#define FT_DEBUG_LEVEL_TRACE
+#endif
/* force the definition of FT_DEBUG_LEVEL_ERROR if FT_DEBUG_LEVEL_TRACE */
/* is already defined; this simplifies the following #ifdefs */
@@ -82,21 +97,67 @@ FT_BEGIN_HEADER
* Each component must define the macro FT_COMPONENT to a valid FT_Trace
* value before using any TRACE macro.
*
+ * To get consistent logging output, there should be no newline character
+ * (i.e., '\n') or a single trailing one in the message string of
+ * `FT_TRACEx` and `FT_ERROR`.
*/
-#ifdef FT_DEBUG_LEVEL_TRACE
- /* we need two macros here to make cpp expand `FT_COMPONENT' */
-#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x )
-#define FT_TRACE_COMP_( x ) trace_ ## x
+ /*************************************************************************
+ *
+ * If FT_DEBUG_LOGGING is enabled, tracing messages are sent to dlg's API.
+ * If FT_DEBUG_LOGGING is disabled, tracing messages are sent to
+ * `FT_Message` (defined in ftdebug.c).
+ */
+#ifdef FT_DEBUG_LOGGING
+
+ /* we need two macros to convert the names of `FT_COMPONENT` to a string */
+#define FT_LOGGING_TAG( x ) FT_LOGGING_TAG_( x )
+#define FT_LOGGING_TAG_( x ) #x
-#define FT_TRACE( level, varformat ) \
+ /* we need two macros to convert the component and the trace level */
+ /* to a string that combines them */
+#define FT_LOGGING_TAGX( x, y ) FT_LOGGING_TAGX_( x, y )
+#define FT_LOGGING_TAGX_( x, y ) #x ":" #y
+
+
+#define FT_LOG( level, varformat ) \
+ do \
+ { \
+ const char* dlg_tag = FT_LOGGING_TAGX( FT_COMPONENT, level ); \
+ \
+ \
+ ft_add_tag( dlg_tag ); \
+ if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
+ { \
+ if ( custom_output_handler != NULL ) \
+ FT_Logging_Callback varformat; \
+ else \
+ dlg_trace varformat; \
+ } \
+ ft_remove_tag( dlg_tag ); \
+ } while( 0 )
+
+#else /* !FT_DEBUG_LOGGING */
+
+#define FT_LOG( level, varformat ) \
do \
{ \
if ( ft_trace_levels[FT_TRACE_COMP( FT_COMPONENT )] >= level ) \
FT_Message varformat; \
} while ( 0 )
+#endif /* !FT_DEBUG_LOGGING */
+
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+ /* we need two macros here to make cpp expand `FT_COMPONENT' */
+#define FT_TRACE_COMP( x ) FT_TRACE_COMP_( x )
+#define FT_TRACE_COMP_( x ) trace_ ## x
+
+#define FT_TRACE( level, varformat ) FT_LOG( level, varformat )
+
#else /* !FT_DEBUG_LEVEL_TRACE */
#define FT_TRACE( level, varformat ) do { } while ( 0 ) /* nothing */
@@ -204,7 +265,32 @@ FT_BEGIN_HEADER
#ifdef FT_DEBUG_LEVEL_ERROR
-#define FT_ERROR( varformat ) FT_Message varformat
+ /**************************************************************************
+ *
+ * If FT_DEBUG_LOGGING is enabled, error messages are sent to dlg's API.
+ * If FT_DEBUG_LOGGING is disabled, error messages are sent to `FT_Message`
+ * (defined in ftdebug.c).
+ *
+ */
+#ifdef FT_DEBUG_LOGGING
+
+#define FT_ERROR( varformat ) \
+ do \
+ { \
+ const char* dlg_tag = FT_LOGGING_TAG( FT_COMPONENT ); \
+ \
+ \
+ ft_add_tag( dlg_tag ); \
+ dlg_trace varformat; \
+ ft_remove_tag( dlg_tag ); \
+ } while ( 0 )
+
+#else /* !FT_DEBUG_LOGGING */
+
+#define FT_ERROR( varformat ) FT_Message varformat
+
+#endif /* !FT_DEBUG_LOGGING */
+
#else /* !FT_DEBUG_LEVEL_ERROR */
@@ -277,6 +363,77 @@ FT_BEGIN_HEADER
FT_BASE( void )
ft_debug_init( void );
+
+#ifdef FT_DEBUG_LOGGING
+
+ /**************************************************************************
+ *
+ * 'dlg' uses output handlers to control how and where log messages are
+ * printed. Therefore we need to define a default output handler for
+ * FreeType.
+ */
+ FT_BASE( void )
+ ft_log_handler( const struct dlg_origin* origin,
+ const char* string,
+ void* data );
+
+
+ /**************************************************************************
+ *
+ * 1. `ft_default_log_handler` stores the function pointer that is used
+ * internally by FreeType to print logs to a file.
+ *
+ * 2. `custom_output_handler` stores the function pointer to the callback
+ * function provided by the user.
+ *
+ * It is defined in `ftdebug.c`.
+ */
+ extern dlg_handler ft_default_log_handler;
+ extern FT_Custom_Log_Handler custom_output_handler;
+
+
+ /**************************************************************************
+ *
+ * If FT_DEBUG_LOGGING macro is enabled, FreeType needs to initialize and
+ * un-initialize `FILE*`.
+ *
+ * These functions are defined in `ftdebug.c`.
+ */
+ FT_BASE( void )
+ ft_logging_init( void );
+
+ FT_BASE( void )
+ ft_logging_deinit( void );
+
+
+ /**************************************************************************
+ *
+ * For printing the name of `FT_COMPONENT` along with the actual log we
+ * need to add a tag with the name of `FT_COMPONENT`.
+ *
+ * These functions are defined in `ftdebug.c`.
+ */
+ FT_BASE( void )
+ ft_add_tag( const char* tag );
+
+ FT_BASE( void )
+ ft_remove_tag( const char* tag );
+
+
+ /**************************************************************************
+ *
+ * A function to print log data using a custom callback logging function
+ * (which is set using `FT_Set_Log_Handler`).
+ *
+ * This function is defined in `ftdebug.c`.
+ */
+ FT_BASE( void )
+ FT_Logging_Callback( const char* fmt,
+ ... );
+
+#endif /* FT_DEBUG_LOGGING */
+
+
FT_END_HEADER
#endif /* FTDEBUG_H_ */
diff --git a/thirdparty/freetype/include/freetype/internal/ftdrv.h b/thirdparty/freetype/include/freetype/internal/ftdrv.h
index 7f22710eae..0db323d5ab 100644
--- a/thirdparty/freetype/include/freetype/internal/ftdrv.h
+++ b/thirdparty/freetype/include/freetype/internal/ftdrv.h
@@ -4,7 +4,7 @@
*
* FreeType internal font driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/ftgloadr.h b/thirdparty/freetype/include/freetype/internal/ftgloadr.h
index 27b8659f7c..fea931c3aa 100644
--- a/thirdparty/freetype/include/freetype/internal/ftgloadr.h
+++ b/thirdparty/freetype/include/freetype/internal/ftgloadr.h
@@ -4,7 +4,7 @@
*
* The FreeType glyph loader (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
@@ -22,6 +22,7 @@
#include <freetype/freetype.h>
+#include "compiler-macros.h"
FT_BEGIN_HEADER
diff --git a/thirdparty/freetype/include/freetype/internal/ftmemory.h b/thirdparty/freetype/include/freetype/internal/ftmemory.h
index ddb18b0512..e20d949696 100644
--- a/thirdparty/freetype/include/freetype/internal/ftmemory.h
+++ b/thirdparty/freetype/include/freetype/internal/ftmemory.h
@@ -4,7 +4,7 @@
*
* The FreeType memory management macros (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
@@ -344,14 +344,13 @@ extern "C++"
#define FT_RENEW_ARRAY( ptr, curcnt, newcnt ) \
FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) )
-#define FT_QNEW( ptr ) \
- FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) )
+#define FT_QNEW( ptr ) FT_MEM_SET_ERROR( FT_MEM_QNEW( ptr ) )
-#define FT_QNEW_ARRAY( ptr, count ) \
- FT_MEM_SET_ERROR( FT_MEM_NEW_ARRAY( ptr, count ) )
+#define FT_QNEW_ARRAY( ptr, count ) \
+ FT_MEM_SET_ERROR( FT_MEM_QNEW_ARRAY( ptr, count ) )
-#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \
- FT_MEM_SET_ERROR( FT_MEM_RENEW_ARRAY( ptr, curcnt, newcnt ) )
+#define FT_QRENEW_ARRAY( ptr, curcnt, newcnt ) \
+ FT_MEM_SET_ERROR( FT_MEM_QRENEW_ARRAY( ptr, curcnt, newcnt ) )
FT_BASE( FT_Pointer )
diff --git a/thirdparty/freetype/include/freetype/internal/ftobjs.h b/thirdparty/freetype/include/freetype/internal/ftobjs.h
index 25db2c494f..e52a26aa06 100644
--- a/thirdparty/freetype/include/freetype/internal/ftobjs.h
+++ b/thirdparty/freetype/include/freetype/internal/ftobjs.h
@@ -4,7 +4,7 @@
*
* The FreeType private base classes (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -673,7 +673,7 @@ FT_BEGIN_HEADER
/* Set the metrics according to a size request. */
- FT_BASE( void )
+ FT_BASE( FT_Error )
FT_Request_Metrics( FT_Face face,
FT_Size_Request req );
diff --git a/thirdparty/freetype/include/freetype/internal/ftpsprop.h b/thirdparty/freetype/include/freetype/internal/ftpsprop.h
index 81ec29151c..d94d0d7e4b 100644
--- a/thirdparty/freetype/include/freetype/internal/ftpsprop.h
+++ b/thirdparty/freetype/include/freetype/internal/ftpsprop.h
@@ -4,7 +4,7 @@
*
* Get and set properties of PostScript drivers (specification).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/ftrfork.h b/thirdparty/freetype/include/freetype/internal/ftrfork.h
index 1b7b25acbe..1c56d6ceb7 100644
--- a/thirdparty/freetype/include/freetype/internal/ftrfork.h
+++ b/thirdparty/freetype/include/freetype/internal/ftrfork.h
@@ -4,7 +4,7 @@
*
* Embedded resource forks accessor (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO and Redhat K.K.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/ftserv.h b/thirdparty/freetype/include/freetype/internal/ftserv.h
index 6e1a9472da..fa82c31fcd 100644
--- a/thirdparty/freetype/include/freetype/internal/ftserv.h
+++ b/thirdparty/freetype/include/freetype/internal/ftserv.h
@@ -4,7 +4,7 @@
*
* The FreeType services (specification only).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/ftstream.h b/thirdparty/freetype/include/freetype/internal/ftstream.h
index e7d922260f..7f3af120c2 100644
--- a/thirdparty/freetype/include/freetype/internal/ftstream.h
+++ b/thirdparty/freetype/include/freetype/internal/ftstream.h
@@ -4,7 +4,7 @@
*
* Stream handling (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -196,9 +196,9 @@ FT_BEGIN_HEADER
FT_BYTE_U32( p, 2, 8 ) | \
FT_BYTE_U32( p, 3, 0 ) )
-#define FT_PEEK_OFF3( p ) FT_INT32( FT_BYTE_U32( p, 0, 16 ) | \
- FT_BYTE_U32( p, 1, 8 ) | \
- FT_BYTE_U32( p, 2, 0 ) )
+#define FT_PEEK_OFF3( p ) ( FT_INT32( FT_BYTE_U32( p, 0, 24 ) | \
+ FT_BYTE_U32( p, 1, 16 ) | \
+ FT_BYTE_U32( p, 2, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3( p ) FT_UINT32( FT_BYTE_U32( p, 0, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
@@ -220,9 +220,9 @@ FT_BEGIN_HEADER
FT_BYTE_U32( p, 1, 8 ) | \
FT_BYTE_U32( p, 0, 0 ) )
-#define FT_PEEK_OFF3_LE( p ) FT_INT32( FT_BYTE_U32( p, 2, 16 ) | \
- FT_BYTE_U32( p, 1, 8 ) | \
- FT_BYTE_U32( p, 0, 0 ) )
+#define FT_PEEK_OFF3_LE( p ) ( FT_INT32( FT_BYTE_U32( p, 2, 24 ) | \
+ FT_BYTE_U32( p, 1, 16 ) | \
+ FT_BYTE_U32( p, 0, 8 ) ) >> 8 )
#define FT_PEEK_UOFF3_LE( p ) FT_UINT32( FT_BYTE_U32( p, 2, 16 ) | \
FT_BYTE_U32( p, 1, 8 ) | \
@@ -305,11 +305,10 @@ FT_BEGIN_HEADER
#else
#define FT_GET_MACRO( func, type ) ( (type)func( stream ) )
-#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetChar, FT_Char )
-#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetChar, FT_Byte )
+#define FT_GET_CHAR() FT_GET_MACRO( FT_Stream_GetByte, FT_Char )
+#define FT_GET_BYTE() FT_GET_MACRO( FT_Stream_GetByte, FT_Byte )
#define FT_GET_SHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_Short )
#define FT_GET_USHORT() FT_GET_MACRO( FT_Stream_GetUShort, FT_UShort )
-#define FT_GET_OFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_Long )
#define FT_GET_UOFF3() FT_GET_MACRO( FT_Stream_GetUOffset, FT_ULong )
#define FT_GET_LONG() FT_GET_MACRO( FT_Stream_GetULong, FT_Long )
#define FT_GET_ULONG() FT_GET_MACRO( FT_Stream_GetULong, FT_ULong )
@@ -333,11 +332,10 @@ FT_BEGIN_HEADER
* `FT_STREAM_POS'. They use the full machinery to check whether a read is
* valid.
*/
-#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Byte, var )
-#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadChar, FT_Char, var )
+#define FT_READ_BYTE( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Byte, var )
+#define FT_READ_CHAR( var ) FT_READ_MACRO( FT_Stream_ReadByte, FT_Char, var )
#define FT_READ_SHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_Short, var )
#define FT_READ_USHORT( var ) FT_READ_MACRO( FT_Stream_ReadUShort, FT_UShort, var )
-#define FT_READ_OFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_Long, var )
#define FT_READ_UOFF3( var ) FT_READ_MACRO( FT_Stream_ReadUOffset, FT_ULong, var )
#define FT_READ_LONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_Long, var )
#define FT_READ_ULONG( var ) FT_READ_MACRO( FT_Stream_ReadULong, FT_ULong, var )
@@ -457,8 +455,8 @@ FT_BEGIN_HEADER
/* read a byte from an entered frame */
- FT_BASE( FT_Char )
- FT_Stream_GetChar( FT_Stream stream );
+ FT_BASE( FT_Byte )
+ FT_Stream_GetByte( FT_Stream stream );
/* read a 16-bit big-endian unsigned integer from an entered frame */
FT_BASE( FT_UShort )
@@ -482,8 +480,8 @@ FT_BEGIN_HEADER
/* read a byte from a stream */
- FT_BASE( FT_Char )
- FT_Stream_ReadChar( FT_Stream stream,
+ FT_BASE( FT_Byte )
+ FT_Stream_ReadByte( FT_Stream stream,
FT_Error* error );
/* read a 16-bit big-endian unsigned integer from a stream */
diff --git a/thirdparty/freetype/include/freetype/internal/fttrace.h b/thirdparty/freetype/include/freetype/internal/fttrace.h
index 58bd77413c..3307556bff 100644
--- a/thirdparty/freetype/include/freetype/internal/fttrace.h
+++ b/thirdparty/freetype/include/freetype/internal/fttrace.h
@@ -4,7 +4,7 @@
*
* Tracing handling (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -18,6 +18,11 @@
/* definitions of trace levels for FreeType 2 */
+ /* the maximum string length (if the argument to `FT_TRACE_DEF` */
+ /* gets used as a string) plus one charachter for ':' plus */
+ /* another one for the trace level */
+#define FT_MAX_TRACE_LEVEL_LENGTH (9 + 1 + 1)
+
/* the first level must always be `trace_any' */
FT_TRACE_DEF( any )
@@ -38,12 +43,14 @@ FT_TRACE_DEF( checksum ) /* bitmap checksum (ftobjs.c) */
FT_TRACE_DEF( mm ) /* MM interface (ftmm.c) */
FT_TRACE_DEF( psprops ) /* PS driver properties (ftpsprop.c) */
FT_TRACE_DEF( raccess ) /* resource fork accessor (ftrfork.c) */
+FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */
+
+ /* rasterizers */
FT_TRACE_DEF( raster ) /* monochrome rasterizer (ftraster.c) */
FT_TRACE_DEF( smooth ) /* anti-aliasing raster (ftgrays.c) */
-FT_TRACE_DEF( synth ) /* bold/slant synthesizer (ftsynth.c) */
- /* Cache sub-system */
-FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */
+ /* cache sub-system */
+FT_TRACE_DEF( cache ) /* cache sub-system (ftcache.c, etc.) */
/* SFNT driver components */
FT_TRACE_DEF( sfdriver ) /* SFNT font driver (sfdriver.c) */
@@ -77,6 +84,7 @@ FT_TRACE_DEF( t1objs )
FT_TRACE_DEF( t1parse )
/* PostScript helper module `psaux' */
+FT_TRACE_DEF( afmparse )
FT_TRACE_DEF( cffdecode )
FT_TRACE_DEF( psconv )
FT_TRACE_DEF( psobjs )
@@ -151,8 +159,10 @@ FT_TRACE_DEF( afglobal )
FT_TRACE_DEF( afhints )
FT_TRACE_DEF( afmodule )
FT_TRACE_DEF( aflatin )
-FT_TRACE_DEF( aflatin2 )
FT_TRACE_DEF( afshaper )
-FT_TRACE_DEF( afwarp )
+
+ /* SDF components */
+FT_TRACE_DEF( sdf ) /* signed distance raster for outlines (ftsdf.c) */
+FT_TRACE_DEF( bsdf ) /* signed distance raster for bitmaps (ftbsdf.c) */
/* END */
diff --git a/thirdparty/freetype/include/freetype/internal/ftvalid.h b/thirdparty/freetype/include/freetype/internal/ftvalid.h
index a5bc6c9b52..7bdfa62f32 100644
--- a/thirdparty/freetype/include/freetype/internal/ftvalid.h
+++ b/thirdparty/freetype/include/freetype/internal/ftvalid.h
@@ -4,7 +4,7 @@
*
* FreeType validation support (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/internal.h b/thirdparty/freetype/include/freetype/internal/internal.h
deleted file mode 100644
index 766bf64c23..0000000000
--- a/thirdparty/freetype/include/freetype/internal/internal.h
+++ /dev/null
@@ -1,67 +0,0 @@
-/****************************************************************************
- *
- * internal.h
- *
- * Internal header files (specification only).
- *
- * Copyright (C) 1996-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
- /**************************************************************************
- *
- * This file is automatically included by `ft2build.h`. Do not include it
- * manually!
- *
- */
-
-
-#define FT_INTERNAL_OBJECTS_H <freetype/internal/ftobjs.h>
-#define FT_INTERNAL_STREAM_H <freetype/internal/ftstream.h>
-#define FT_INTERNAL_MEMORY_H <freetype/internal/ftmemory.h>
-#define FT_INTERNAL_DEBUG_H <freetype/internal/ftdebug.h>
-#define FT_INTERNAL_CALC_H <freetype/internal/ftcalc.h>
-#define FT_INTERNAL_HASH_H <freetype/internal/fthash.h>
-#define FT_INTERNAL_DRIVER_H <freetype/internal/ftdrv.h>
-#define FT_INTERNAL_TRACE_H <freetype/internal/fttrace.h>
-#define FT_INTERNAL_GLYPH_LOADER_H <freetype/internal/ftgloadr.h>
-#define FT_INTERNAL_SFNT_H <freetype/internal/sfnt.h>
-#define FT_INTERNAL_SERVICE_H <freetype/internal/ftserv.h>
-#define FT_INTERNAL_RFORK_H <freetype/internal/ftrfork.h>
-#define FT_INTERNAL_VALIDATE_H <freetype/internal/ftvalid.h>
-
-#define FT_INTERNAL_TRUETYPE_TYPES_H <freetype/internal/tttypes.h>
-#define FT_INTERNAL_TYPE1_TYPES_H <freetype/internal/t1types.h>
-#define FT_INTERNAL_WOFF_TYPES_H <freetype/internal/wofftypes.h>
-
-#define FT_INTERNAL_POSTSCRIPT_AUX_H <freetype/internal/psaux.h>
-#define FT_INTERNAL_POSTSCRIPT_HINTS_H <freetype/internal/pshints.h>
-#define FT_INTERNAL_POSTSCRIPT_PROPS_H <freetype/internal/ftpsprop.h>
-
-#define FT_INTERNAL_AUTOHINT_H <freetype/internal/autohint.h>
-
-#define FT_INTERNAL_CFF_TYPES_H <freetype/internal/cfftypes.h>
-#define FT_INTERNAL_CFF_OBJECTS_TYPES_H <freetype/internal/cffotypes.h>
-
-
-#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
-
- /* We disable the warning `conditional expression is constant' here */
- /* in order to compile cleanly with the maximum level of warnings. */
- /* In particular, the warning complains about stuff like `while(0)' */
- /* which is very useful in macro definitions. There is no benefit */
- /* in having it enabled. */
-#pragma warning( disable : 4127 )
-
-#endif /* _MSC_VER */
-
-
-/* END */
diff --git a/thirdparty/freetype/include/freetype/internal/psaux.h b/thirdparty/freetype/include/freetype/internal/psaux.h
index 8e0a262fd5..6c6399aa16 100644
--- a/thirdparty/freetype/include/freetype/internal/psaux.h
+++ b/thirdparty/freetype/include/freetype/internal/psaux.h
@@ -5,7 +5,7 @@
* Auxiliary functions and data structures related to PostScript fonts
* (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/pshints.h b/thirdparty/freetype/include/freetype/internal/pshints.h
index 663e9d3488..9dbb0776b0 100644
--- a/thirdparty/freetype/include/freetype/internal/pshints.h
+++ b/thirdparty/freetype/include/freetype/internal/pshints.h
@@ -6,7 +6,7 @@
* recorders (specification only). These are used to support native
* T1/T2 hints in the 'type1', 'cid', and 'cff' font drivers.
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svbdf.h b/thirdparty/freetype/include/freetype/internal/services/svbdf.h
index 81f5a06b62..879aa61383 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svbdf.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svbdf.h
@@ -4,7 +4,7 @@
*
* The FreeType BDF services (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svcfftl.h b/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
index 1d2dbb6a8e..f6424e424d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svcfftl.h
@@ -4,7 +4,7 @@
*
* The FreeType CFF tables loader service (specification).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svcid.h b/thirdparty/freetype/include/freetype/internal/services/svcid.h
index bd49f3270a..7ef5afd0b7 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svcid.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svcid.h
@@ -4,7 +4,7 @@
*
* The FreeType CID font services (specification).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* Derek Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h b/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
index 6114d638af..cc87fc122d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svfntfmt.h
@@ -4,7 +4,7 @@
*
* The FreeType font format service (specification only).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svgldict.h b/thirdparty/freetype/include/freetype/internal/services/svgldict.h
index f9443e40d6..4256f14a04 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svgldict.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svgldict.h
@@ -4,7 +4,7 @@
*
* The FreeType glyph dictionary services (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svgxval.h b/thirdparty/freetype/include/freetype/internal/services/svgxval.h
index 83c2f26cee..f36d55602a 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svgxval.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svgxval.h
@@ -4,7 +4,7 @@
*
* FreeType API for validating TrueTypeGX/AAT tables (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/include/freetype/internal/services/svkern.h b/thirdparty/freetype/include/freetype/internal/services/svkern.h
index 13cfb32722..99dc2d97a3 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svkern.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svkern.h
@@ -4,7 +4,7 @@
*
* The FreeType Kerning service (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svmetric.h b/thirdparty/freetype/include/freetype/internal/services/svmetric.h
index 2b30edaabe..b9c95a7c9c 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svmetric.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svmetric.h
@@ -4,7 +4,7 @@
*
* The FreeType services for metrics variations (specification).
*
- * Copyright (C) 2016-2020 by
+ * Copyright (C) 2016-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svmm.h b/thirdparty/freetype/include/freetype/internal/services/svmm.h
index 5a807636a6..8eac3a3fe3 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svmm.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svmm.h
@@ -4,7 +4,7 @@
*
* The FreeType Multiple Masters and GX var services (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svotval.h b/thirdparty/freetype/include/freetype/internal/services/svotval.h
index 763fb2efbe..7afb49e824 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svotval.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svotval.h
@@ -4,7 +4,7 @@
*
* The FreeType OpenType validation service (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpfr.h b/thirdparty/freetype/include/freetype/internal/services/svpfr.h
index bdeba0785c..98442bf83d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpfr.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpfr.h
@@ -4,7 +4,7 @@
*
* Internal PFR service functions (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpostnm.h b/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
index 8ef62c5f92..5a25c5a58a 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpostnm.h
@@ -4,7 +4,7 @@
*
* The FreeType PostScript name services (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svprop.h b/thirdparty/freetype/include/freetype/internal/services/svprop.h
index 8f755436a1..9b71000c52 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svprop.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svprop.h
@@ -4,7 +4,7 @@
*
* The FreeType property service (specification).
*
- * Copyright (C) 2012-2020 by
+ * Copyright (C) 2012-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpscmap.h b/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
index b4dcd80759..346f5e2a7c 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpscmap.h
@@ -4,7 +4,7 @@
*
* The FreeType PostScript charmap service (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h b/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
index 1e7276ff43..49aa4d565d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svpsinfo.h
@@ -4,7 +4,7 @@
*
* The FreeType PostScript info service (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svsfnt.h b/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
index 39c8b5e19d..4306cbc1b7 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svsfnt.h
@@ -4,7 +4,7 @@
*
* The FreeType SFNT table loading service (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svttcmap.h b/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
index c18bb2336f..775b6bcf20 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svttcmap.h
@@ -4,7 +4,7 @@
*
* The FreeType TrueType/sfnt cmap extra information service.
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* Masatake YAMATO, Redhat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/include/freetype/internal/services/svtteng.h b/thirdparty/freetype/include/freetype/internal/services/svtteng.h
index 7a17e4a755..964934284d 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svtteng.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svtteng.h
@@ -4,7 +4,7 @@
*
* The FreeType TrueType engine query service (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svttglyf.h b/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
index 90a81dd40e..4268467b75 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svttglyf.h
@@ -4,7 +4,7 @@
*
* The FreeType TrueType glyph service.
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* David Turner.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h b/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
index 8c915f5257..aa70aa44db 100644
--- a/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/services/svwinfnt.h
@@ -4,7 +4,7 @@
*
* The FreeType Windows FNT/FONT service (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/sfnt.h b/thirdparty/freetype/include/freetype/internal/sfnt.h
index b4c12dbb26..bf4c7e09fe 100644
--- a/thirdparty/freetype/include/freetype/internal/sfnt.h
+++ b/thirdparty/freetype/include/freetype/internal/sfnt.h
@@ -4,7 +4,7 @@
*
* High-level 'sfnt' driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -527,6 +527,170 @@ FT_BEGIN_HEADER
/**************************************************************************
*
* @functype:
+ * TT_Get_Color_Glyph_Paint_Func
+ *
+ * @description:
+ * Find the root @FT_OpaquePaint object for a given glyph ID.
+ *
+ * @input:
+ * face ::
+ * The target face object.
+ *
+ * base_glyph ::
+ * The glyph index the colored glyph layers are associated with.
+ *
+ * @output:
+ * paint ::
+ * The root @FT_OpaquePaint object.
+ *
+ * @return:
+ * Value~1 if everything is OK. If no color glyph is found, or the root
+ * paint could not be retrieved, value~0 gets returned. In case of an
+ * error, value~0 is returned also.
+ */
+ typedef FT_Bool
+ ( *TT_Get_Color_Glyph_Paint_Func )( TT_Face face,
+ FT_UInt base_glyph,
+ FT_Color_Root_Transform root_transform,
+ FT_OpaquePaint *paint );
+
+
+ /**************************************************************************
+ *
+ * @functype:
+ * TT_Get_Color_Glyph_ClipBox_Func
+ *
+ * @description:
+ * Search for a 'COLR' v1 clip box for the specified `base_glyph` and
+ * fill the `clip_box` parameter with the 'COLR' v1 'ClipBox' information
+ * if one is found.
+ *
+ * @input:
+ * face ::
+ * A handle to the parent face object.
+ *
+ * base_glyph ::
+ * The glyph index for which to retrieve the clip box.
+ *
+ * @output:
+ * clip_box ::
+ * The clip box for the requested `base_glyph` if one is found. The
+ * clip box is computed taking scale and transformations configured on
+ * the @FT_Face into account. @FT_ClipBox contains @FT_Vector values
+ * in 26.6 format.
+ *
+ * @note:
+ * To retrieve the clip box in font units, reset scale to units-per-em
+ * and remove transforms configured using @FT_Set_Transform.
+ *
+ * @return:
+ * Value~1 if a ClipBox is found. If no clip box is found or an
+ * error occured, value~0 is returned.
+ */
+ typedef FT_Bool
+ ( *TT_Get_Color_Glyph_ClipBox_Func )( TT_Face face,
+ FT_UInt base_glyph,
+ FT_ClipBox* clip_box );
+
+
+ /**************************************************************************
+ *
+ * @functype:
+ * TT_Get_Paint_Layers_Func
+ *
+ * @description:
+ * Access the layers of a `PaintColrLayers` table.
+ *
+ * @input:
+ * face ::
+ * The target face object.
+ *
+ * @inout:
+ * iterator ::
+ * The @FT_LayerIterator from an @FT_PaintColrLayers object, for which
+ * the layers are to be retrieved. The internal state of the iterator
+ * is incremented after one call to this function for retrieving one
+ * layer.
+ *
+ * @output:
+ * paint ::
+ * The root @FT_OpaquePaint object referencing the actual paint table.
+ *
+ * @return:
+ * Value~1 if everything is OK. Value~0 gets returned when the paint
+ * object can not be retrieved or any other error occurs.
+ */
+ typedef FT_Bool
+ ( *TT_Get_Paint_Layers_Func )( TT_Face face,
+ FT_LayerIterator* iterator,
+ FT_OpaquePaint *paint );
+
+
+ /**************************************************************************
+ *
+ * @functype:
+ * TT_Get_Colorline_Stops_Func
+ *
+ * @description:
+ * Get the gradient and solid fill information for a given glyph.
+ *
+ * @input:
+ * face ::
+ * The target face object.
+ *
+ * @inout:
+ * iterator ::
+ * An @FT_ColorStopIterator object. For the first call you should set
+ * `iterator->p` to `NULL`. For all following calls, simply use the
+ * same object again.
+ *
+ * @output:
+ * color_stop ::
+ * Color index and alpha value for the retrieved color stop.
+ *
+ * @return:
+ * Value~1 if everything is OK. If there are no more color stops,
+ * value~0 gets returned. In case of an error, value~0 is returned
+ * also.
+ */
+ typedef FT_Bool
+ ( *TT_Get_Colorline_Stops_Func )( TT_Face face,
+ FT_ColorStop *color_stop,
+ FT_ColorStopIterator* iterator );
+
+
+ /**************************************************************************
+ *
+ * @functype:
+ * TT_Get_Paint_Func
+ *
+ * @description:
+ * Get the paint details for a given @FT_OpaquePaint object.
+ *
+ * @input:
+ * face ::
+ * The target face object.
+ *
+ * opaque_paint ::
+ * The @FT_OpaquePaint object.
+ *
+ * @output:
+ * paint ::
+ * An @FT_COLR_Paint object holding the details on `opaque_paint`.
+ *
+ * @return:
+ * Value~1 if everything is OK. Value~0 if no details can be found for
+ * this paint or any other error occured.
+ */
+ typedef FT_Bool
+ ( *TT_Get_Paint_Func )( TT_Face face,
+ FT_OpaquePaint opaque_paint,
+ FT_COLR_Paint *paint );
+
+
+ /**************************************************************************
+ *
+ * @functype:
* TT_Blend_Colr_Func
*
* @description:
@@ -709,73 +873,78 @@ FT_BEGIN_HEADER
*/
typedef struct SFNT_Interface_
{
- TT_Loader_GotoTableFunc goto_table;
+ TT_Loader_GotoTableFunc goto_table;
- TT_Init_Face_Func init_face;
- TT_Load_Face_Func load_face;
- TT_Done_Face_Func done_face;
- FT_Module_Requester get_interface;
+ TT_Init_Face_Func init_face;
+ TT_Load_Face_Func load_face;
+ TT_Done_Face_Func done_face;
+ FT_Module_Requester get_interface;
- TT_Load_Any_Func load_any;
+ TT_Load_Any_Func load_any;
/* these functions are called by `load_face' but they can also */
/* be called from external modules, if there is a need to do so */
- TT_Load_Table_Func load_head;
- TT_Load_Metrics_Func load_hhea;
- TT_Load_Table_Func load_cmap;
- TT_Load_Table_Func load_maxp;
- TT_Load_Table_Func load_os2;
- TT_Load_Table_Func load_post;
+ TT_Load_Table_Func load_head;
+ TT_Load_Metrics_Func load_hhea;
+ TT_Load_Table_Func load_cmap;
+ TT_Load_Table_Func load_maxp;
+ TT_Load_Table_Func load_os2;
+ TT_Load_Table_Func load_post;
- TT_Load_Table_Func load_name;
- TT_Free_Table_Func free_name;
+ TT_Load_Table_Func load_name;
+ TT_Free_Table_Func free_name;
/* this field was called `load_kerning' up to version 2.1.10 */
- TT_Load_Table_Func load_kern;
+ TT_Load_Table_Func load_kern;
- TT_Load_Table_Func load_gasp;
- TT_Load_Table_Func load_pclt;
+ TT_Load_Table_Func load_gasp;
+ TT_Load_Table_Func load_pclt;
/* see `ttload.h'; this field was called `load_bitmap_header' up to */
/* version 2.1.10 */
- TT_Load_Table_Func load_bhed;
+ TT_Load_Table_Func load_bhed;
- TT_Load_SBit_Image_Func load_sbit_image;
+ TT_Load_SBit_Image_Func load_sbit_image;
/* see `ttpost.h' */
- TT_Get_PS_Name_Func get_psname;
- TT_Free_Table_Func free_psnames;
+ TT_Get_PS_Name_Func get_psname;
+ TT_Free_Table_Func free_psnames;
/* starting here, the structure differs from version 2.1.7 */
/* this field was introduced in version 2.1.8, named `get_psname' */
- TT_Face_GetKerningFunc get_kerning;
+ TT_Face_GetKerningFunc get_kerning;
/* new elements introduced after version 2.1.10 */
/* load the font directory, i.e., the offset table and */
/* the table directory */
- TT_Load_Table_Func load_font_dir;
- TT_Load_Metrics_Func load_hmtx;
+ TT_Load_Table_Func load_font_dir;
+ TT_Load_Metrics_Func load_hmtx;
- TT_Load_Table_Func load_eblc;
- TT_Free_Table_Func free_eblc;
+ TT_Load_Table_Func load_eblc;
+ TT_Free_Table_Func free_eblc;
TT_Set_SBit_Strike_Func set_sbit_strike;
TT_Load_Strike_Metrics_Func load_strike_metrics;
- TT_Load_Table_Func load_cpal;
- TT_Load_Table_Func load_colr;
- TT_Free_Table_Func free_cpal;
- TT_Free_Table_Func free_colr;
- TT_Set_Palette_Func set_palette;
- TT_Get_Colr_Layer_Func get_colr_layer;
- TT_Blend_Colr_Func colr_blend;
+ TT_Load_Table_Func load_cpal;
+ TT_Load_Table_Func load_colr;
+ TT_Free_Table_Func free_cpal;
+ TT_Free_Table_Func free_colr;
+ TT_Set_Palette_Func set_palette;
+ TT_Get_Colr_Layer_Func get_colr_layer;
+ TT_Get_Color_Glyph_Paint_Func get_colr_glyph_paint;
+ TT_Get_Color_Glyph_ClipBox_Func get_color_glyph_clipbox;
+ TT_Get_Paint_Layers_Func get_paint_layers;
+ TT_Get_Colorline_Stops_Func get_colorline_stops;
+ TT_Get_Paint_Func get_paint;
+ TT_Blend_Colr_Func colr_blend;
- TT_Get_Metrics_Func get_metrics;
+ TT_Get_Metrics_Func get_metrics;
- TT_Get_Name_Func get_name;
- TT_Get_Name_ID_Func get_name_id;
+ TT_Get_Name_Func get_name;
+ TT_Get_Name_ID_Func get_name_id;
} SFNT_Interface;
@@ -820,6 +989,11 @@ FT_BEGIN_HEADER
free_colr_, \
set_palette_, \
get_colr_layer_, \
+ get_colr_glyph_paint_, \
+ get_color_glyph_clipbox, \
+ get_paint_layers_, \
+ get_colorline_stops_, \
+ get_paint_, \
colr_blend_, \
get_metrics_, \
get_name_, \
@@ -860,6 +1034,11 @@ FT_BEGIN_HEADER
free_colr_, \
set_palette_, \
get_colr_layer_, \
+ get_colr_glyph_paint_, \
+ get_color_glyph_clipbox, \
+ get_paint_layers_, \
+ get_colorline_stops_, \
+ get_paint_, \
colr_blend_, \
get_metrics_, \
get_name_, \
diff --git a/thirdparty/freetype/include/freetype/internal/t1types.h b/thirdparty/freetype/include/freetype/internal/t1types.h
index 6a0fe5e97d..023c5d08a2 100644
--- a/thirdparty/freetype/include/freetype/internal/t1types.h
+++ b/thirdparty/freetype/include/freetype/internal/t1types.h
@@ -5,7 +5,7 @@
* Basic Type1/Type2 type definitions and interface (specification
* only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/internal/tttypes.h b/thirdparty/freetype/include/freetype/internal/tttypes.h
index c36342c93a..651131c8d3 100644
--- a/thirdparty/freetype/include/freetype/internal/tttypes.h
+++ b/thirdparty/freetype/include/freetype/internal/tttypes.h
@@ -5,7 +5,7 @@
* Basic SFNT/TrueType type definitions and interface (specification
* only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -1372,7 +1372,7 @@ FT_BEGIN_HEADER
*
* num_locations ::
* The number of glyph locations in this TrueType file. This should be
- * identical to the number of glyphs. Ignored for Type 2 fonts.
+ * one more than the number of glyphs. Ignored for Type 2 fonts.
*
* glyph_locations ::
* An array of longs. These are offsets to glyph data within the
@@ -1598,7 +1598,7 @@ FT_BEGIN_HEADER
FT_ULong horz_metrics_size;
FT_ULong vert_metrics_size;
- FT_ULong num_locations; /* in broken TTF, gid > 0xFFFF */
+ FT_ULong num_locations; /* up to 0xFFFF + 1 */
FT_Byte* glyph_locations;
FT_Byte* hdmx_table;
@@ -1734,7 +1734,7 @@ FT_BEGIN_HEADER
FT_UInt glyph_index;
FT_Stream stream;
- FT_Int byte_len;
+ FT_UInt byte_len;
FT_Short n_contours;
FT_BBox bbox;
diff --git a/thirdparty/freetype/include/freetype/internal/wofftypes.h b/thirdparty/freetype/include/freetype/internal/wofftypes.h
index 1874a138a0..c460107c4d 100644
--- a/thirdparty/freetype/include/freetype/internal/wofftypes.h
+++ b/thirdparty/freetype/include/freetype/internal/wofftypes.h
@@ -5,7 +5,7 @@
* Basic WOFF/WOFF2 type definitions and interface (specification
* only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -92,7 +92,7 @@ FT_BEGIN_HEADER
*/
typedef struct WOFF_TableRec_
{
- FT_ULong Tag; /* table ID */
+ FT_Tag Tag; /* table ID */
FT_ULong Offset; /* table file offset */
FT_ULong CompLength; /* compressed table length */
FT_ULong OrigLength; /* uncompressed table length */
@@ -191,7 +191,7 @@ FT_BEGIN_HEADER
typedef struct WOFF2_TableRec_
{
FT_Byte FlagByte; /* table type and flags */
- FT_ULong Tag; /* table file offset */
+ FT_Tag Tag; /* table file offset */
FT_ULong dst_length; /* uncompressed table length */
FT_ULong TransformLength; /* transformed length */
diff --git a/thirdparty/freetype/include/freetype/t1tables.h b/thirdparty/freetype/include/freetype/t1tables.h
index 426e14024e..a5f6ae7210 100644
--- a/thirdparty/freetype/include/freetype/t1tables.h
+++ b/thirdparty/freetype/include/freetype/t1tables.h
@@ -5,7 +5,7 @@
* Basic Type 1/Type 2 tables definitions and interface (specification
* only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -360,7 +360,7 @@ FT_BEGIN_HEADER
FT_UInt num_subrs;
FT_ULong subrmap_offset;
- FT_Int sd_bytes;
+ FT_UInt sd_bytes;
} CID_FaceDictRec;
@@ -415,11 +415,11 @@ FT_BEGIN_HEADER
FT_ULong xuid[16];
FT_ULong cidmap_offset;
- FT_Int fd_bytes;
- FT_Int gd_bytes;
+ FT_UInt fd_bytes;
+ FT_UInt gd_bytes;
FT_ULong cid_count;
- FT_Int num_dicts;
+ FT_UInt num_dicts;
CID_FaceDict font_dicts;
FT_ULong data_offset;
diff --git a/thirdparty/freetype/include/freetype/ttnameid.h b/thirdparty/freetype/include/freetype/ttnameid.h
index 2b2ed4c613..a09950f542 100644
--- a/thirdparty/freetype/include/freetype/ttnameid.h
+++ b/thirdparty/freetype/include/freetype/ttnameid.h
@@ -4,7 +4,7 @@
*
* TrueType name ID definitions (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -591,7 +591,7 @@ FT_BEGIN_HEADER
#define TT_MS_LANGID_MALAY_MALAYSIA 0x043E
#define TT_MS_LANGID_MALAY_BRUNEI_DARUSSALAM 0x083E
#define TT_MS_LANGID_KAZAKH_KAZAKHSTAN 0x043F
-#define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic*/ 0x0440
+#define TT_MS_LANGID_KYRGYZ_KYRGYZSTAN /* Cyrillic */ 0x0440
#define TT_MS_LANGID_KISWAHILI_KENYA 0x0441
#define TT_MS_LANGID_TURKMEN_TURKMENISTAN 0x0442
#define TT_MS_LANGID_UZBEK_UZBEKISTAN_LATIN 0x0443
diff --git a/thirdparty/freetype/include/freetype/tttables.h b/thirdparty/freetype/include/freetype/tttables.h
index c8fa35ef8e..c33d99059d 100644
--- a/thirdparty/freetype/include/freetype/tttables.h
+++ b/thirdparty/freetype/include/freetype/tttables.h
@@ -5,7 +5,7 @@
* Basic SFNT/TrueType tables definitions and interface
* (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/freetype/tttags.h b/thirdparty/freetype/include/freetype/tttags.h
index 3c9fbd59d7..47ccc6ddf4 100644
--- a/thirdparty/freetype/include/freetype/tttags.h
+++ b/thirdparty/freetype/include/freetype/tttags.h
@@ -4,7 +4,7 @@
*
* Tags for TrueType and OpenType tables (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/include/ft2build.h b/thirdparty/freetype/include/ft2build.h
index b4fd1f8c3e..62686b1b20 100644
--- a/thirdparty/freetype/include/ft2build.h
+++ b/thirdparty/freetype/include/ft2build.h
@@ -4,7 +4,7 @@
*
* FreeType 2 build and setup macros.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afangles.c b/thirdparty/freetype/src/autofit/afangles.c
deleted file mode 100644
index a2d45eb72c..0000000000
--- a/thirdparty/freetype/src/autofit/afangles.c
+++ /dev/null
@@ -1,285 +0,0 @@
-/****************************************************************************
- *
- * afangles.c
- *
- * Routines used to compute vector angles with limited accuracy
- * and very high speed. It also contains sorting routines (body).
- *
- * Copyright (C) 2003-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#include "aftypes.h"
-
-
- /*
- * We are not using `af_angle_atan' anymore, but we keep the source
- * code below just in case...
- */
-
-
-#if 0
-
-
- /*
- * The trick here is to realize that we don't need a very accurate angle
- * approximation. We are going to use the result of `af_angle_atan' to
- * only compare the sign of angle differences, or check whether its
- * magnitude is very small.
- *
- * The approximation
- *
- * dy * PI / (|dx|+|dy|)
- *
- * should be enough, and much faster to compute.
- */
- FT_LOCAL_DEF( AF_Angle )
- af_angle_atan( FT_Fixed dx,
- FT_Fixed dy )
- {
- AF_Angle angle;
- FT_Fixed ax = dx;
- FT_Fixed ay = dy;
-
-
- if ( ax < 0 )
- ax = -ax;
- if ( ay < 0 )
- ay = -ay;
-
- ax += ay;
-
- if ( ax == 0 )
- angle = 0;
- else
- {
- angle = ( AF_ANGLE_PI2 * dy ) / ( ax + ay );
- if ( dx < 0 )
- {
- if ( angle >= 0 )
- angle = AF_ANGLE_PI - angle;
- else
- angle = -AF_ANGLE_PI - angle;
- }
- }
-
- return angle;
- }
-
-
-#elif 0
-
-
- /* the following table has been automatically generated with */
- /* the `mather.py' Python script */
-
-#define AF_ATAN_BITS 8
-
- static const FT_Byte af_arctan[1L << AF_ATAN_BITS] =
- {
- 0, 0, 1, 1, 1, 2, 2, 2,
- 3, 3, 3, 3, 4, 4, 4, 5,
- 5, 5, 6, 6, 6, 7, 7, 7,
- 8, 8, 8, 9, 9, 9, 10, 10,
- 10, 10, 11, 11, 11, 12, 12, 12,
- 13, 13, 13, 14, 14, 14, 14, 15,
- 15, 15, 16, 16, 16, 17, 17, 17,
- 18, 18, 18, 18, 19, 19, 19, 20,
- 20, 20, 21, 21, 21, 21, 22, 22,
- 22, 23, 23, 23, 24, 24, 24, 24,
- 25, 25, 25, 26, 26, 26, 26, 27,
- 27, 27, 28, 28, 28, 28, 29, 29,
- 29, 30, 30, 30, 30, 31, 31, 31,
- 31, 32, 32, 32, 33, 33, 33, 33,
- 34, 34, 34, 34, 35, 35, 35, 35,
- 36, 36, 36, 36, 37, 37, 37, 38,
- 38, 38, 38, 39, 39, 39, 39, 40,
- 40, 40, 40, 41, 41, 41, 41, 42,
- 42, 42, 42, 42, 43, 43, 43, 43,
- 44, 44, 44, 44, 45, 45, 45, 45,
- 46, 46, 46, 46, 46, 47, 47, 47,
- 47, 48, 48, 48, 48, 48, 49, 49,
- 49, 49, 50, 50, 50, 50, 50, 51,
- 51, 51, 51, 51, 52, 52, 52, 52,
- 52, 53, 53, 53, 53, 53, 54, 54,
- 54, 54, 54, 55, 55, 55, 55, 55,
- 56, 56, 56, 56, 56, 57, 57, 57,
- 57, 57, 57, 58, 58, 58, 58, 58,
- 59, 59, 59, 59, 59, 59, 60, 60,
- 60, 60, 60, 61, 61, 61, 61, 61,
- 61, 62, 62, 62, 62, 62, 62, 63,
- 63, 63, 63, 63, 63, 64, 64, 64
- };
-
-
- FT_LOCAL_DEF( AF_Angle )
- af_angle_atan( FT_Fixed dx,
- FT_Fixed dy )
- {
- AF_Angle angle;
-
-
- /* check trivial cases */
- if ( dy == 0 )
- {
- angle = 0;
- if ( dx < 0 )
- angle = AF_ANGLE_PI;
- return angle;
- }
- else if ( dx == 0 )
- {
- angle = AF_ANGLE_PI2;
- if ( dy < 0 )
- angle = -AF_ANGLE_PI2;
- return angle;
- }
-
- angle = 0;
- if ( dx < 0 )
- {
- dx = -dx;
- dy = -dy;
- angle = AF_ANGLE_PI;
- }
-
- if ( dy < 0 )
- {
- FT_Pos tmp;
-
-
- tmp = dx;
- dx = -dy;
- dy = tmp;
- angle -= AF_ANGLE_PI2;
- }
-
- if ( dx == 0 && dy == 0 )
- return 0;
-
- if ( dx == dy )
- angle += AF_ANGLE_PI4;
- else if ( dx > dy )
- angle += af_arctan[FT_DivFix( dy, dx ) >> ( 16 - AF_ATAN_BITS )];
- else
- angle += AF_ANGLE_PI2 -
- af_arctan[FT_DivFix( dx, dy ) >> ( 16 - AF_ATAN_BITS )];
-
- if ( angle > AF_ANGLE_PI )
- angle -= AF_ANGLE_2PI;
-
- return angle;
- }
-
-
-#endif /* 0 */
-
-
- FT_LOCAL_DEF( void )
- af_sort_pos( FT_UInt count,
- FT_Pos* table )
- {
- FT_UInt i, j;
- FT_Pos swap;
-
-
- for ( i = 1; i < count; i++ )
- {
- for ( j = i; j > 0; j-- )
- {
- if ( table[j] >= table[j - 1] )
- break;
-
- swap = table[j];
- table[j] = table[j - 1];
- table[j - 1] = swap;
- }
- }
- }
-
-
- FT_LOCAL_DEF( void )
- af_sort_and_quantize_widths( FT_UInt* count,
- AF_Width table,
- FT_Pos threshold )
- {
- FT_UInt i, j;
- FT_UInt cur_idx;
- FT_Pos cur_val;
- FT_Pos sum;
- AF_WidthRec swap;
-
-
- if ( *count == 1 )
- return;
-
- /* sort */
- for ( i = 1; i < *count; i++ )
- {
- for ( j = i; j > 0; j-- )
- {
- if ( table[j].org >= table[j - 1].org )
- break;
-
- swap = table[j];
- table[j] = table[j - 1];
- table[j - 1] = swap;
- }
- }
-
- cur_idx = 0;
- cur_val = table[cur_idx].org;
-
- /* compute and use mean values for clusters not larger than */
- /* `threshold'; this is very primitive and might not yield */
- /* the best result, but normally, using reference character */
- /* `o', `*count' is 2, so the code below is fully sufficient */
- for ( i = 1; i < *count; i++ )
- {
- if ( table[i].org - cur_val > threshold ||
- i == *count - 1 )
- {
- sum = 0;
-
- /* fix loop for end of array */
- if ( table[i].org - cur_val <= threshold &&
- i == *count - 1 )
- i++;
-
- for ( j = cur_idx; j < i; j++ )
- {
- sum += table[j].org;
- table[j].org = 0;
- }
- table[cur_idx].org = sum / (FT_Pos)j;
-
- if ( i < *count - 1 )
- {
- cur_idx = i + 1;
- cur_val = table[cur_idx].org;
- }
- }
- }
-
- cur_idx = 1;
-
- /* compress array to remove zero values */
- for ( i = 1; i < *count; i++ )
- {
- if ( table[i].org )
- table[cur_idx++] = table[i];
- }
-
- *count = cur_idx;
- }
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afangles.h b/thirdparty/freetype/src/autofit/afangles.h
deleted file mode 100644
index 18d7dae3a6..0000000000
--- a/thirdparty/freetype/src/autofit/afangles.h
+++ /dev/null
@@ -1,7 +0,0 @@
-/*
- * afangles.h
- *
- * This is a dummy file, used to please the build system. It is never
- * included by the auto-fitter sources.
- *
- */
diff --git a/thirdparty/freetype/src/autofit/afblue.c b/thirdparty/freetype/src/autofit/afblue.c
index 9ebffdd099..c9e8045c18 100644
--- a/thirdparty/freetype/src/autofit/afblue.c
+++ b/thirdparty/freetype/src/autofit/afblue.c
@@ -7,7 +7,7 @@
*
* Auto-fitter data for blue strings (body).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afblue.cin b/thirdparty/freetype/src/autofit/afblue.cin
index c6a697fee0..071e80b031 100644
--- a/thirdparty/freetype/src/autofit/afblue.cin
+++ b/thirdparty/freetype/src/autofit/afblue.cin
@@ -4,7 +4,7 @@
*
* Auto-fitter data for blue strings (body).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afblue.dat b/thirdparty/freetype/src/autofit/afblue.dat
index b19b8df0f4..1aa9b26de9 100644
--- a/thirdparty/freetype/src/autofit/afblue.dat
+++ b/thirdparty/freetype/src/autofit/afblue.dat
@@ -2,7 +2,7 @@
//
// Auto-fitter data for blue strings.
//
-// Copyright (C) 2013-2020 by
+// Copyright (C) 2013-2021 by
// David Turner, Robert Wilhelm, and Werner Lemberg.
//
// This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afblue.h b/thirdparty/freetype/src/autofit/afblue.h
index 486d663b6c..311c9e3afd 100644
--- a/thirdparty/freetype/src/autofit/afblue.h
+++ b/thirdparty/freetype/src/autofit/afblue.h
@@ -7,7 +7,7 @@
*
* Auto-fitter data for blue strings (specification).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afblue.hin b/thirdparty/freetype/src/autofit/afblue.hin
index 3957027091..5186914937 100644
--- a/thirdparty/freetype/src/autofit/afblue.hin
+++ b/thirdparty/freetype/src/autofit/afblue.hin
@@ -4,7 +4,7 @@
*
* Auto-fitter data for blue strings (specification).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afcjk.c b/thirdparty/freetype/src/autofit/afcjk.c
index 3b340cd5ed..7e46b6b1ef 100644
--- a/thirdparty/freetype/src/autofit/afcjk.c
+++ b/thirdparty/freetype/src/autofit/afcjk.c
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines for CJK writing system (body).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -37,11 +37,6 @@
#include "aferrors.h"
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-#include "afwarp.h"
-#endif
-
-
/**************************************************************************
*
* The macro FT_COMPONENT is used in trace mode. It is an implicit
@@ -72,11 +67,11 @@
AF_GlyphHintsRec hints[1];
- FT_TRACE5(( "\n"
- "cjk standard widths computation (style `%s')\n"
- "===================================================\n"
- "\n",
+ FT_TRACE5(( "\n" ));
+ FT_TRACE5(( "cjk standard widths computation (style `%s')\n",
af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( "===================================================\n" ));
+ FT_TRACE5(( "\n" ));
af_glyph_hints_init( hints, face->memory );
@@ -314,9 +309,9 @@
/* style's entry in the `af_blue_stringset' array, computing its */
/* extremum points (depending on the string properties) */
- FT_TRACE5(( "cjk blue zones computation\n"
- "==========================\n"
- "\n" ));
+ FT_TRACE5(( "cjk blue zones computation\n" ));
+ FT_TRACE5(( "==========================\n" ));
+ FT_TRACE5(( "\n" ));
#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
shaper_buf = af_shaper_buf_create( face );
@@ -555,9 +550,8 @@
if ( AF_CJK_IS_TOP_BLUE( bs ) )
blue->flags |= AF_CJK_BLUE_TOP;
- FT_TRACE5(( " -> reference = %ld\n"
- " overshoot = %ld\n",
- *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n", *blue_ref ));
+ FT_TRACE5(( " overshoot = %ld\n", *blue_shoot ));
} /* end for loop */
@@ -743,12 +737,12 @@
blue->shoot.fit = blue->ref.fit - delta2;
- FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n"
- " ref: cur=%.2f fit=%.2f\n"
- " shoot: cur=%.2f fit=%.2f\n",
+ FT_TRACE5(( ">> active cjk blue zone %c%d[%ld/%ld]:\n",
( dim == AF_DIMENSION_HORZ ) ? 'H' : 'V',
- nn, blue->ref.org, blue->shoot.org,
- blue->ref.cur / 64.0, blue->ref.fit / 64.0,
+ nn, blue->ref.org, blue->shoot.org ));
+ FT_TRACE5(( " ref: cur=%.2f fit=%.2f\n",
+ blue->ref.cur / 64.0, blue->ref.fit / 64.0 ));
+ FT_TRACE5(( " shoot: cur=%.2f fit=%.2f\n",
blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
blue->flags |= AF_CJK_BLUE_ACTIVE;
@@ -1401,11 +1395,6 @@
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#if 0 /* AF_CONFIG_OPTION_USE_WARPER */
- if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
- metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
-#endif
-
scaler_flags = hints->scaler_flags;
other_flags = 0;
@@ -1434,12 +1423,6 @@
scaler_flags |= AF_SCALER_FLAG_NO_ADVANCE;
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- /* get (global) warper flag */
- if ( !metrics->root.globals->module->warping )
- scaler_flags |= AF_SCALER_FLAG_NO_WARPER;
-#endif
-
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
@@ -2322,25 +2305,6 @@
if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )
{
-
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- if ( dim == AF_DIMENSION_HORZ &&
- metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL &&
- AF_HINTS_DO_WARP( hints ) )
- {
- AF_WarperRec warper;
- FT_Fixed scale;
- FT_Pos delta;
-
-
- af_warper_compute( &warper, hints, (AF_Dimension)dim,
- &scale, &delta );
- af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
- scale, delta );
- continue;
- }
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
-
af_cjk_hint_edges( hints, (AF_Dimension)dim );
af_cjk_align_edge_points( hints, (AF_Dimension)dim );
af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );
diff --git a/thirdparty/freetype/src/autofit/afcjk.h b/thirdparty/freetype/src/autofit/afcjk.h
index fd0f451aa8..58aa298dad 100644
--- a/thirdparty/freetype/src/autofit/afcjk.h
+++ b/thirdparty/freetype/src/autofit/afcjk.h
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines for CJK writing system (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afcover.h b/thirdparty/freetype/src/autofit/afcover.h
index 03085ad07e..c7ae1e9a8a 100644
--- a/thirdparty/freetype/src/autofit/afcover.h
+++ b/thirdparty/freetype/src/autofit/afcover.h
@@ -4,7 +4,7 @@
*
* Auto-fitter coverages (specification only).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afdummy.c b/thirdparty/freetype/src/autofit/afdummy.c
index 77d31df974..a36b56f784 100644
--- a/thirdparty/freetype/src/autofit/afdummy.c
+++ b/thirdparty/freetype/src/autofit/afdummy.c
@@ -5,7 +5,7 @@
* Auto-fitter dummy routines to be used if no hinting should be
* performed (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afdummy.h b/thirdparty/freetype/src/autofit/afdummy.h
index efd799e84b..b58849fe50 100644
--- a/thirdparty/freetype/src/autofit/afdummy.h
+++ b/thirdparty/freetype/src/autofit/afdummy.h
@@ -5,7 +5,7 @@
* Auto-fitter dummy routines to be used if no hinting should be
* performed (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/aferrors.h b/thirdparty/freetype/src/autofit/aferrors.h
index f90899944b..09bed66395 100644
--- a/thirdparty/freetype/src/autofit/aferrors.h
+++ b/thirdparty/freetype/src/autofit/aferrors.h
@@ -4,7 +4,7 @@
*
* Autofitter error codes (specification only).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afglobal.c b/thirdparty/freetype/src/autofit/afglobal.c
index d5129423d5..b805b3b0e5 100644
--- a/thirdparty/freetype/src/autofit/afglobal.c
+++ b/thirdparty/freetype/src/autofit/afglobal.c
@@ -4,7 +4,7 @@
*
* Auto-fitter routines to compute global hinting values (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -19,6 +19,7 @@
#include "afglobal.h"
#include "afranges.h"
#include "afshaper.h"
+#include "afws-decl.h"
#include <freetype/internal/ftdebug.h>
@@ -32,11 +33,6 @@
#define FT_COMPONENT afglobal
- /* get writing system specific header files */
-#undef WRITING_SYSTEM
-#define WRITING_SYSTEM( ws, WS ) /* empty */
-#include "afwrtsys.h"
-
#include "aferrors.h"
@@ -74,7 +70,7 @@
af_writing_system_classes[] =
{
-#include "afwrtsys.h"
+#include "afws-iter.h"
NULL /* do not remove */
};
@@ -285,10 +281,10 @@
#ifdef FT_DEBUG_LEVEL_TRACE
- FT_TRACE4(( "\n"
- "style coverage\n"
- "==============\n"
- "\n" ));
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( "style coverage\n" ));
+ FT_TRACE4(( "==============\n" ));
+ FT_TRACE4(( "\n" ));
for ( ss = 0; af_style_classes[ss]; ss++ )
{
@@ -478,6 +474,10 @@
{
style = (AF_Style)( globals->glyph_styles[gindex] &
AF_STYLE_UNASSIGNED );
+ /* IMPORTANT: Clear the error code, see
+ * https://gitlab.freedesktop.org/freetype/freetype/-/issues/1063
+ */
+ error = FT_Err_Ok;
goto Again;
}
diff --git a/thirdparty/freetype/src/autofit/afglobal.h b/thirdparty/freetype/src/autofit/afglobal.h
index fecf7af977..cd97e716c4 100644
--- a/thirdparty/freetype/src/autofit/afglobal.h
+++ b/thirdparty/freetype/src/autofit/afglobal.h
@@ -5,7 +5,7 @@
* Auto-fitter routines to compute global hinting values
* (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afhints.c b/thirdparty/freetype/src/autofit/afhints.c
index a8e00890ef..5506afda22 100644
--- a/thirdparty/freetype/src/autofit/afhints.c
+++ b/thirdparty/freetype/src/autofit/afhints.c
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -32,6 +32,104 @@
#define FT_COMPONENT afhints
+ FT_LOCAL_DEF( void )
+ af_sort_pos( FT_UInt count,
+ FT_Pos* table )
+ {
+ FT_UInt i, j;
+ FT_Pos swap;
+
+
+ for ( i = 1; i < count; i++ )
+ {
+ for ( j = i; j > 0; j-- )
+ {
+ if ( table[j] >= table[j - 1] )
+ break;
+
+ swap = table[j];
+ table[j] = table[j - 1];
+ table[j - 1] = swap;
+ }
+ }
+ }
+
+
+ FT_LOCAL_DEF( void )
+ af_sort_and_quantize_widths( FT_UInt* count,
+ AF_Width table,
+ FT_Pos threshold )
+ {
+ FT_UInt i, j;
+ FT_UInt cur_idx;
+ FT_Pos cur_val;
+ FT_Pos sum;
+ AF_WidthRec swap;
+
+
+ if ( *count == 1 )
+ return;
+
+ /* sort */
+ for ( i = 1; i < *count; i++ )
+ {
+ for ( j = i; j > 0; j-- )
+ {
+ if ( table[j].org >= table[j - 1].org )
+ break;
+
+ swap = table[j];
+ table[j] = table[j - 1];
+ table[j - 1] = swap;
+ }
+ }
+
+ cur_idx = 0;
+ cur_val = table[cur_idx].org;
+
+ /* compute and use mean values for clusters not larger than */
+ /* `threshold'; this is very primitive and might not yield */
+ /* the best result, but normally, using reference character */
+ /* `o', `*count' is 2, so the code below is fully sufficient */
+ for ( i = 1; i < *count; i++ )
+ {
+ if ( table[i].org - cur_val > threshold ||
+ i == *count - 1 )
+ {
+ sum = 0;
+
+ /* fix loop for end of array */
+ if ( table[i].org - cur_val <= threshold &&
+ i == *count - 1 )
+ i++;
+
+ for ( j = cur_idx; j < i; j++ )
+ {
+ sum += table[j].org;
+ table[j].org = 0;
+ }
+ table[cur_idx].org = sum / (FT_Pos)j;
+
+ if ( i < *count - 1 )
+ {
+ cur_idx = i + 1;
+ cur_val = table[cur_idx].org;
+ }
+ }
+ }
+
+ cur_idx = 1;
+
+ /* compress array to remove zero values */
+ for ( i = 1; i < *count; i++ )
+ {
+ if ( table[i].org )
+ table[cur_idx++] = table[i];
+ }
+
+ *count = cur_idx;
+ }
+
/* Get new segment for given axis. */
FT_LOCAL_DEF( FT_Error )
@@ -764,7 +862,7 @@
{
FT_Error error = FT_Err_Ok;
AF_Point points;
- FT_UInt old_max, new_max;
+ FT_Int old_max, new_max;
FT_Fixed x_scale = hints->x_scale;
FT_Fixed y_scale = hints->y_scale;
FT_Pos x_delta = hints->x_delta;
@@ -781,8 +879,8 @@
hints->axis[1].num_edges = 0;
/* first of all, reallocate the contours array if necessary */
- new_max = (FT_UInt)outline->n_contours;
- old_max = (FT_UInt)hints->max_contours;
+ new_max = outline->n_contours;
+ old_max = hints->max_contours;
if ( new_max <= AF_CONTOURS_EMBEDDED )
{
@@ -797,12 +895,12 @@
if ( hints->contours == hints->embedded.contours )
hints->contours = NULL;
- new_max = ( new_max + 3 ) & ~3U; /* round up to a multiple of 4 */
+ new_max = ( new_max + 3 ) & ~3; /* round up to a multiple of 4 */
if ( FT_RENEW_ARRAY( hints->contours, old_max, new_max ) )
goto Exit;
- hints->max_contours = (FT_Int)new_max;
+ hints->max_contours = new_max;
}
/*
@@ -810,8 +908,8 @@
* note that we reserve two additional point positions, used to
* hint metrics appropriately
*/
- new_max = (FT_UInt)( outline->n_points + 2 );
- old_max = (FT_UInt)hints->max_points;
+ new_max = outline->n_points + 2;
+ old_max = hints->max_points;
if ( new_max <= AF_POINTS_EMBEDDED )
{
@@ -826,12 +924,12 @@
if ( hints->points == hints->embedded.points )
hints->points = NULL;
- new_max = ( new_max + 2 + 7 ) & ~7U; /* round up to a multiple of 8 */
+ new_max = ( new_max + 2 + 7 ) & ~7; /* round up to a multiple of 8 */
if ( FT_RENEW_ARRAY( hints->points, old_max, new_max ) )
goto Exit;
- hints->max_points = (FT_Int)new_max;
+ hints->max_points = new_max;
}
hints->num_points = outline->n_points;
@@ -855,9 +953,6 @@
hints->x_delta = x_delta;
hints->y_delta = y_delta;
- hints->xmin_delta = 0;
- hints->xmax_delta = 0;
-
points = hints->points;
if ( hints->num_points == 0 )
goto Exit;
@@ -1688,33 +1783,4 @@
}
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-
- /* Apply (small) warp scale and warp delta for given dimension. */
-
- FT_LOCAL_DEF( void )
- af_glyph_hints_scale_dim( AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Fixed scale,
- FT_Pos delta )
- {
- AF_Point points = hints->points;
- AF_Point points_limit = points + hints->num_points;
- AF_Point point;
-
-
- if ( dim == AF_DIMENSION_HORZ )
- {
- for ( point = points; point < points_limit; point++ )
- point->x = FT_MulFix( point->fx, scale ) + delta;
- }
- else
- {
- for ( point = points; point < points_limit; point++ )
- point->y = FT_MulFix( point->fy, scale ) + delta;
- }
- }
-
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
-
/* END */
diff --git a/thirdparty/freetype/src/autofit/afhints.h b/thirdparty/freetype/src/autofit/afhints.h
index 6397f098f0..38d2847d71 100644
--- a/thirdparty/freetype/src/autofit/afhints.h
+++ b/thirdparty/freetype/src/autofit/afhints.h
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -362,9 +362,6 @@ FT_BEGIN_HEADER
/* implementations */
AF_StyleMetrics metrics;
- FT_Pos xmin_delta; /* used for warping */
- FT_Pos xmax_delta;
-
/* Two arrays to avoid allocation penalty. */
/* The `embedded' structure must be the last element! */
struct
@@ -408,10 +405,6 @@ FT_BEGIN_HEADER
#define AF_HINTS_DO_ADVANCE( h ) \
!AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_ADVANCE )
-#define AF_HINTS_DO_WARP( h ) \
- !AF_HINTS_TEST_SCALER( h, AF_SCALER_FLAG_NO_WARPER )
-
-
FT_LOCAL( AF_Direction )
af_direction_compute( FT_Pos dx,
@@ -459,14 +452,6 @@ FT_BEGIN_HEADER
af_glyph_hints_align_weak_points( AF_GlyphHints hints,
AF_Dimension dim );
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- FT_LOCAL( void )
- af_glyph_hints_scale_dim( AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Fixed scale,
- FT_Pos delta );
-#endif
-
FT_LOCAL( void )
af_glyph_hints_done( AF_GlyphHints hints );
diff --git a/thirdparty/freetype/src/autofit/afindic.c b/thirdparty/freetype/src/autofit/afindic.c
index bc2837a26d..064c300ed7 100644
--- a/thirdparty/freetype/src/autofit/afindic.c
+++ b/thirdparty/freetype/src/autofit/afindic.c
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines for Indic writing system (body).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.
*
* This file is part of the FreeType project, and may only be used,
@@ -27,11 +27,6 @@
#include "aferrors.h"
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-#include "afwarp.h"
-#endif
-
-
static FT_Error
af_indic_metrics_init( AF_CJKMetrics metrics,
FT_Face face )
diff --git a/thirdparty/freetype/src/autofit/afindic.h b/thirdparty/freetype/src/autofit/afindic.h
index 088b88b19d..3e46724112 100644
--- a/thirdparty/freetype/src/autofit/afindic.h
+++ b/thirdparty/freetype/src/autofit/afindic.h
@@ -5,7 +5,7 @@
* Auto-fitter hinting routines for Indic writing system
* (specification).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* Rahul Bhalerao <rahul.bhalerao@redhat.com>, <b.rahul.pm@gmail.com>.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/aflatin.c b/thirdparty/freetype/src/autofit/aflatin.c
index 21ec02ebd2..5e81d771a4 100644
--- a/thirdparty/freetype/src/autofit/aflatin.c
+++ b/thirdparty/freetype/src/autofit/aflatin.c
@@ -4,7 +4,7 @@
*
* Auto-fitter hinting routines for latin writing system (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -24,11 +24,6 @@
#include "aferrors.h"
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-#include "afwarp.h"
-#endif
-
-
/**************************************************************************
*
* The macro FT_COMPONENT is used in trace mode. It is an implicit
@@ -63,11 +58,11 @@
AF_GlyphHintsRec hints[1];
- FT_TRACE5(( "\n"
- "latin standard widths computation (style `%s')\n"
- "=====================================================\n"
- "\n",
+ FT_TRACE5(( "\n" ));
+ FT_TRACE5(( "latin standard widths computation (style `%s')\n",
af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( "=====================================================\n" ));
+ FT_TRACE5(( "\n" ));
af_glyph_hints_init( hints, face->memory );
@@ -350,9 +345,9 @@
/* we walk over the blue character strings as specified in the */
/* style's entry in the `af_blue_stringset' array */
- FT_TRACE5(( "latin blue zones computation\n"
- "============================\n"
- "\n" ));
+ FT_TRACE5(( "latin blue zones computation\n" ));
+ FT_TRACE5(( "============================\n" ));
+ FT_TRACE5(( "\n" ));
#ifdef FT_CONFIG_OPTION_USE_HARFBUZZ
shaper_buf = af_shaper_buf_create( face );
@@ -976,9 +971,8 @@
if ( AF_LATIN_IS_X_HEIGHT_BLUE( bs ) )
blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
- FT_TRACE5(( " -> reference = %ld\n"
- " overshoot = %ld\n",
- *blue_ref, *blue_shoot ));
+ FT_TRACE5(( " -> reference = %ld\n", *blue_ref ));
+ FT_TRACE5(( " overshoot = %ld\n", *blue_shoot ));
} /* end for loop */
@@ -1275,29 +1269,28 @@
if ( dist == 0 )
{
- FT_TRACE5((
- "af_latin_metrics_scale_dim:"
- " x height alignment (style `%s'):\n"
- " "
- " vertical scaling changed from %.5f to %.5f (by %ld%%)\n"
- "\n",
- af_style_names[metrics->root.style_class->style],
- scale / 65536.0,
- new_scale / 65536.0,
- ( fitted - scaled ) * 100 / scaled ));
+ FT_TRACE5(( "af_latin_metrics_scale_dim:"
+ " x height alignment (style `%s'):\n",
+ af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( " "
+ " vertical scaling changed"
+ " from %.5f to %.5f (by %ld%%)\n",
+ scale / 65536.0,
+ new_scale / 65536.0,
+ ( fitted - scaled ) * 100 / scaled ));
+ FT_TRACE5(( "\n" ));
scale = new_scale;
}
#ifdef FT_DEBUG_LEVEL_TRACE
else
{
- FT_TRACE5((
- "af_latin_metrics_scale_dim:"
- " x height alignment (style `%s'):\n"
- " "
- " excessive vertical scaling abandoned\n"
- "\n",
- af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( "af_latin_metrics_scale_dim:"
+ " x height alignment (style `%s'):\n",
+ af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( " "
+ " excessive vertical scaling abandoned\n" ));
+ FT_TRACE5(( "\n" ));
}
#endif
}
@@ -1346,9 +1339,11 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( axis->extra_light )
- FT_TRACE5(( "`%s' style is extra light (at current resolution)\n"
- "\n",
+ {
+ FT_TRACE5(( "`%s' style is extra light (at current resolution)\n",
af_style_names[metrics->root.style_class->style] ));
+ FT_TRACE5(( "\n" ));
+ }
#endif
if ( dim == AF_DIMENSION_VERT )
@@ -1473,13 +1468,13 @@
AF_LatinBlue blue = &axis->blues[nn];
- FT_TRACE5(( " reference %d: %ld scaled to %.2f%s\n"
- " overshoot %d: %ld scaled to %.2f%s\n",
+ FT_TRACE5(( " reference %d: %ld scaled to %.2f%s\n",
nn,
blue->ref.org,
blue->ref.fit / 64.0,
( blue->flags & AF_LATIN_BLUE_ACTIVE ) ? ""
- : " (inactive)",
+ : " (inactive)" ));
+ FT_TRACE5(( " overshoot %d: %ld scaled to %.2f%s\n",
nn,
blue->shoot.org,
blue->shoot.fit / 64.0,
@@ -1847,6 +1842,31 @@
( FT_ABS( point->out_dir ) == major_dir ||
point == point->prev ) )
{
+ /*
+ * For efficiency, we restrict the number of segments to 1000,
+ * which is a heuristic value: it is very unlikely that a glyph
+ * with so many segments can be hinted in a sensible way.
+ * Reasons:
+ *
+ * - The glyph has really 1000 segments; this implies that it has
+ * at least 2000 outline points. Assuming 'normal' fonts that
+ * have superfluous points optimized away, viewing such a glyph
+ * only makes sense at large magnifications where hinting
+ * isn't applied anyway.
+ *
+ * - We have a broken glyph. Hinting doesn't make sense in this
+ * case either.
+ */
+ if ( axis->num_segments > 1000 )
+ {
+ FT_TRACE0(( "af_latin_hints_compute_segments:"
+ " more than 1000 segments in this glyph;\n" ));
+ FT_TRACE0(( " "
+ " hinting is suppressed\n" ));
+ axis->num_segments = 0;
+ return FT_Err_Ok;
+ }
+
/* this is the start of a new segment! */
segment_dir = (AF_Direction)point->out_dir;
@@ -2089,7 +2109,7 @@
{
if ( seg2->link != seg1 )
{
- seg1->link = 0;
+ seg1->link = NULL;
seg1->serif = seg2->link;
}
}
@@ -2611,11 +2631,6 @@
/* compute flags depending on render mode, etc. */
mode = metrics->root.scaler.render_mode;
-#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
- if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
- metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
-#endif
-
scaler_flags = hints->scaler_flags;
other_flags = 0;
@@ -2653,12 +2668,6 @@
( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- /* get (global) warper flag */
- if ( !metrics->root.globals->module->warping )
- scaler_flags |= AF_SCALER_FLAG_NO_WARPER;
-#endif
-
hints->scaler_flags = scaler_flags;
hints->other_flags = other_flags;
@@ -3575,24 +3584,6 @@
/* grid-fit the outline */
for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
{
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- if ( dim == AF_DIMENSION_HORZ &&
- metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL &&
- AF_HINTS_DO_WARP( hints ) )
- {
- AF_WarperRec warper;
- FT_Fixed scale;
- FT_Pos delta;
-
-
- af_warper_compute( &warper, hints, (AF_Dimension)dim,
- &scale, &delta );
- af_glyph_hints_scale_dim( hints, (AF_Dimension)dim,
- scale, delta );
- continue;
- }
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
-
if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )
{
diff --git a/thirdparty/freetype/src/autofit/aflatin.h b/thirdparty/freetype/src/autofit/aflatin.h
index 62bc4c8d44..d6b919ef84 100644
--- a/thirdparty/freetype/src/autofit/aflatin.h
+++ b/thirdparty/freetype/src/autofit/aflatin.h
@@ -5,7 +5,7 @@
* Auto-fitter hinting routines for latin writing system
* (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/aflatin2.c b/thirdparty/freetype/src/autofit/aflatin2.c
deleted file mode 100644
index 902f3982e0..0000000000
--- a/thirdparty/freetype/src/autofit/aflatin2.c
+++ /dev/null
@@ -1,2428 +0,0 @@
-/* ATTENTION: This file doesn't compile. It is only here as a reference */
-/* of an alternative latin hinting algorithm that was always */
-/* marked as experimental. */
-
-
-/****************************************************************************
- *
- * aflatin2.c
- *
- * Auto-fitter hinting routines for latin writing system (body).
- *
- * Copyright (C) 2003-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#include <freetype/ftadvanc.h>
-
-
-#ifdef FT_OPTION_AUTOFIT2
-
-#include "afglobal.h"
-#include "aflatin.h"
-#include "aflatin2.h"
-#include "aferrors.h"
-
-
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-#include "afwarp.h"
-#endif
-
-
- /**************************************************************************
- *
- * The macro FT_COMPONENT is used in trace mode. It is an implicit
- * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
- * messages during execution.
- */
-#undef FT_COMPONENT
-#define FT_COMPONENT aflatin2
-
-
- FT_LOCAL_DEF( FT_Error )
- af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim );
-
- FT_LOCAL_DEF( void )
- af_latin2_hints_link_segments( AF_GlyphHints hints,
- AF_Dimension dim );
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** L A T I N G L O B A L M E T R I C S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
- FT_LOCAL_DEF( void )
- af_latin2_metrics_init_widths( AF_LatinMetrics metrics,
- FT_Face face )
- {
- /* scan the array of segments in each direction */
- AF_GlyphHintsRec hints[1];
-
-
- af_glyph_hints_init( hints, face->memory );
-
- metrics->axis[AF_DIMENSION_HORZ].width_count = 0;
- metrics->axis[AF_DIMENSION_VERT].width_count = 0;
-
- {
- FT_Error error;
- FT_UInt glyph_index;
- int dim;
- AF_LatinMetricsRec dummy[1];
- AF_Scaler scaler = &dummy->root.scaler;
-
-
- glyph_index = FT_Get_Char_Index(
- face,
- metrics->root.style_class->standard_char );
- if ( glyph_index == 0 )
- goto Exit;
-
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error || face->glyph->outline.n_points <= 0 )
- goto Exit;
-
- FT_ZERO( dummy );
-
- dummy->units_per_em = metrics->units_per_em;
- scaler->x_scale = scaler->y_scale = 0x10000L;
- scaler->x_delta = scaler->y_delta = 0;
- scaler->face = face;
- scaler->render_mode = FT_RENDER_MODE_NORMAL;
- scaler->flags = 0;
-
- af_glyph_hints_rescale( hints, (AF_StyleMetrics)dummy );
-
- error = af_glyph_hints_reload( hints, &face->glyph->outline );
- if ( error )
- goto Exit;
-
- for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
- {
- AF_LatinAxis axis = &metrics->axis[dim];
- AF_AxisHints axhints = &hints->axis[dim];
- AF_Segment seg, limit, link;
- FT_UInt num_widths = 0;
-
-
- error = af_latin2_hints_compute_segments( hints,
- (AF_Dimension)dim );
- if ( error )
- goto Exit;
-
- af_latin2_hints_link_segments( hints,
- (AF_Dimension)dim );
-
- seg = axhints->segments;
- limit = seg + axhints->num_segments;
-
- for ( ; seg < limit; seg++ )
- {
- link = seg->link;
-
- /* we only consider stem segments there! */
- if ( link && link->link == seg && link > seg )
- {
- FT_Pos dist;
-
-
- dist = seg->pos - link->pos;
- if ( dist < 0 )
- dist = -dist;
-
- if ( num_widths < AF_LATIN_MAX_WIDTHS )
- axis->widths[num_widths++].org = dist;
- }
- }
-
- af_sort_widths( num_widths, axis->widths );
- axis->width_count = num_widths;
- }
-
- Exit:
- for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
- {
- AF_LatinAxis axis = &metrics->axis[dim];
- FT_Pos stdw;
-
-
- stdw = ( axis->width_count > 0 )
- ? axis->widths[0].org
- : AF_LATIN_CONSTANT( metrics, 50 );
-
- /* let's try 20% of the smallest width */
- axis->edge_distance_threshold = stdw / 5;
- axis->standard_width = stdw;
- axis->extra_light = 0;
- }
- }
-
- af_glyph_hints_done( hints );
- }
-
-
-
-#define AF_LATIN_MAX_TEST_CHARACTERS 12
-
-
- static const char af_latin2_blue_chars[AF_LATIN_MAX_BLUES]
- [AF_LATIN_MAX_TEST_CHARACTERS+1] =
- {
- "THEZOCQS",
- "HEZLOCUS",
- "fijkdbh",
- "xzroesc",
- "xzroesc",
- "pqgjy"
- };
-
-
- static void
- af_latin2_metrics_init_blues( AF_LatinMetrics metrics,
- FT_Face face )
- {
- FT_Pos flats [AF_LATIN_MAX_TEST_CHARACTERS];
- FT_Pos rounds[AF_LATIN_MAX_TEST_CHARACTERS];
- FT_Int num_flats;
- FT_Int num_rounds;
- FT_Int bb;
- AF_LatinBlue blue;
- FT_Error error;
- AF_LatinAxis axis = &metrics->axis[AF_DIMENSION_VERT];
- FT_GlyphSlot glyph = face->glyph;
-
-
- /* we compute the blues simply by loading each character from the */
- /* 'af_latin2_blue_chars[blues]' string, then compute its top-most or */
- /* bottom-most points (depending on `AF_IS_TOP_BLUE') */
-
- FT_TRACE5(( "blue zones computation\n"
- "======================\n\n" ));
-
- for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
- {
- const char* p = af_latin2_blue_chars[bb];
- const char* limit = p + AF_LATIN_MAX_TEST_CHARACTERS;
- FT_Pos* blue_ref;
- FT_Pos* blue_shoot;
-
-
- FT_TRACE5(( "blue zone %d:\n", bb ));
-
- num_flats = 0;
- num_rounds = 0;
-
- for ( ; p < limit && *p; p++ )
- {
- FT_UInt glyph_index;
- FT_Int best_point, best_y, best_first, best_last;
- FT_Vector* points;
- FT_Bool round;
-
-
- /* load the character in the face -- skip unknown or empty ones */
- glyph_index = FT_Get_Char_Index( face, (FT_UInt)*p );
- if ( glyph_index == 0 )
- continue;
-
- error = FT_Load_Glyph( face, glyph_index, FT_LOAD_NO_SCALE );
- if ( error || glyph->outline.n_points <= 0 )
- continue;
-
- /* now compute min or max point indices and coordinates */
- points = glyph->outline.points;
- best_point = -1;
- best_y = 0; /* make compiler happy */
- best_first = 0; /* ditto */
- best_last = 0; /* ditto */
-
- {
- FT_Int nn;
- FT_Int first = 0;
- FT_Int last = -1;
-
-
- for ( nn = 0; nn < glyph->outline.n_contours; first = last+1, nn++ )
- {
- FT_Int old_best_point = best_point;
- FT_Int pp;
-
-
- last = glyph->outline.contours[nn];
-
- /* Avoid single-point contours since they are never rasterized. */
- /* In some fonts, they correspond to mark attachment points */
- /* which are way outside of the glyph's real outline. */
- if ( last <= first )
- continue;
-
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
- {
- for ( pp = first; pp <= last; pp++ )
- if ( best_point < 0 || points[pp].y > best_y )
- {
- best_point = pp;
- best_y = points[pp].y;
- }
- }
- else
- {
- for ( pp = first; pp <= last; pp++ )
- if ( best_point < 0 || points[pp].y < best_y )
- {
- best_point = pp;
- best_y = points[pp].y;
- }
- }
-
- if ( best_point != old_best_point )
- {
- best_first = first;
- best_last = last;
- }
- }
- FT_TRACE5(( " %c %d", *p, best_y ));
- }
-
- /* now check whether the point belongs to a straight or round */
- /* segment; we first need to find in which contour the extremum */
- /* lies, then inspect its previous and next points */
- if ( best_point >= 0 )
- {
- FT_Pos best_x = points[best_point].x;
- FT_Int start, end, prev, next;
- FT_Pos dist;
-
-
- /* now look for the previous and next points that are not on the */
- /* same Y coordinate. Threshold the `closeness'... */
- start = end = best_point;
-
- do
- {
- prev = start - 1;
- if ( prev < best_first )
- prev = best_last;
-
- dist = FT_ABS( points[prev].y - best_y );
- /* accept a small distance or a small angle (both values are */
- /* heuristic; value 20 corresponds to approx. 2.9 degrees) */
- if ( dist > 5 )
- if ( FT_ABS( points[prev].x - best_x ) <= 20 * dist )
- break;
-
- start = prev;
-
- } while ( start != best_point );
-
- do
- {
- next = end + 1;
- if ( next > best_last )
- next = best_first;
-
- dist = FT_ABS( points[next].y - best_y );
- if ( dist > 5 )
- if ( FT_ABS( points[next].x - best_x ) <= 20 * dist )
- break;
-
- end = next;
-
- } while ( end != best_point );
-
- /* now, set the `round' flag depending on the segment's kind */
- round = FT_BOOL(
- FT_CURVE_TAG( glyph->outline.tags[start] ) != FT_CURVE_TAG_ON ||
- FT_CURVE_TAG( glyph->outline.tags[ end ] ) != FT_CURVE_TAG_ON );
-
- FT_TRACE5(( " (%s)\n", round ? "round" : "flat" ));
- }
-
- if ( round )
- rounds[num_rounds++] = best_y;
- else
- flats[num_flats++] = best_y;
- }
-
- if ( num_flats == 0 && num_rounds == 0 )
- {
- /*
- * we couldn't find a single glyph to compute this blue zone,
- * we will simply ignore it then
- */
- FT_TRACE5(( " empty\n" ));
- continue;
- }
-
- /* we have computed the contents of the `rounds' and `flats' tables, */
- /* now determine the reference and overshoot position of the blue -- */
- /* we simply take the median value after a simple sort */
- af_sort_pos( num_rounds, rounds );
- af_sort_pos( num_flats, flats );
-
- blue = & axis->blues[axis->blue_count];
- blue_ref = & blue->ref.org;
- blue_shoot = & blue->shoot.org;
-
- axis->blue_count++;
-
- if ( num_flats == 0 )
- {
- *blue_ref =
- *blue_shoot = rounds[num_rounds / 2];
- }
- else if ( num_rounds == 0 )
- {
- *blue_ref =
- *blue_shoot = flats[num_flats / 2];
- }
- else
- {
- *blue_ref = flats[num_flats / 2];
- *blue_shoot = rounds[num_rounds / 2];
- }
-
- /* there are sometimes problems: if the overshoot position of top */
- /* zones is under its reference position, or the opposite for bottom */
- /* zones. We must thus check everything there and correct the errors */
- if ( *blue_shoot != *blue_ref )
- {
- FT_Pos ref = *blue_ref;
- FT_Pos shoot = *blue_shoot;
- FT_Bool over_ref = FT_BOOL( shoot > ref );
-
-
- if ( AF_LATIN_IS_TOP_BLUE( bb ) ^ over_ref )
- {
- *blue_ref =
- *blue_shoot = ( shoot + ref ) / 2;
-
- FT_TRACE5(( " [overshoot smaller than reference,"
- " taking mean value]\n" ));
- }
- }
-
- blue->flags = 0;
- if ( AF_LATIN_IS_TOP_BLUE( bb ) )
- blue->flags |= AF_LATIN_BLUE_TOP;
-
- /*
- * The following flag is used later to adjust the y and x scales
- * in order to optimize the pixel grid alignment of the top of small
- * letters.
- */
- if ( AF_LATIN_IS_X_HEIGHT_BLUE( bb ) )
- blue->flags |= AF_LATIN_BLUE_ADJUSTMENT;
-
- FT_TRACE5(( " -> reference = %ld\n"
- " overshoot = %ld\n",
- *blue_ref, *blue_shoot ));
- }
-
- return;
- }
-
-
- FT_LOCAL_DEF( void )
- af_latin2_metrics_check_digits( AF_LatinMetrics metrics,
- FT_Face face )
- {
- FT_UInt i;
- FT_Bool started = 0, same_width = 1;
- FT_Fixed advance, old_advance = 0;
-
-
- /* check whether all ASCII digits have the same advance width; */
- /* digit `0' is 0x30 in all supported charmaps */
- for ( i = 0x30; i <= 0x39; i++ )
- {
- FT_UInt glyph_index;
-
-
- glyph_index = FT_Get_Char_Index( face, i );
- if ( glyph_index == 0 )
- continue;
-
- if ( FT_Get_Advance( face, glyph_index,
- FT_LOAD_NO_SCALE |
- FT_LOAD_NO_HINTING |
- FT_LOAD_IGNORE_TRANSFORM,
- &advance ) )
- continue;
-
- if ( started )
- {
- if ( advance != old_advance )
- {
- same_width = 0;
- break;
- }
- }
- else
- {
- old_advance = advance;
- started = 1;
- }
- }
-
- metrics->root.digits_have_same_width = same_width;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- af_latin2_metrics_init( AF_LatinMetrics metrics,
- FT_Face face )
- {
- FT_Error error = FT_Err_Ok;
- FT_CharMap oldmap = face->charmap;
- FT_UInt ee;
-
- static const FT_Encoding latin_encodings[] =
- {
- FT_ENCODING_UNICODE,
- FT_ENCODING_APPLE_ROMAN,
- FT_ENCODING_ADOBE_STANDARD,
- FT_ENCODING_ADOBE_LATIN_1,
- FT_ENCODING_NONE /* end of list */
- };
-
-
- metrics->units_per_em = face->units_per_EM;
-
- /* do we have a latin charmap in there? */
- for ( ee = 0; latin_encodings[ee] != FT_ENCODING_NONE; ee++ )
- {
- error = FT_Select_Charmap( face, latin_encodings[ee] );
- if ( !error )
- break;
- }
-
- if ( !error )
- {
- af_latin2_metrics_init_widths( metrics, face );
- af_latin2_metrics_init_blues( metrics, face );
- af_latin2_metrics_check_digits( metrics, face );
- }
-
- FT_Set_Charmap( face, oldmap );
- return FT_Err_Ok;
- }
-
-
- static void
- af_latin2_metrics_scale_dim( AF_LatinMetrics metrics,
- AF_Scaler scaler,
- AF_Dimension dim )
- {
- FT_Fixed scale;
- FT_Pos delta;
- AF_LatinAxis axis;
- FT_UInt nn;
-
-
- if ( dim == AF_DIMENSION_HORZ )
- {
- scale = scaler->x_scale;
- delta = scaler->x_delta;
- }
- else
- {
- scale = scaler->y_scale;
- delta = scaler->y_delta;
- }
-
- axis = &metrics->axis[dim];
-
- if ( axis->org_scale == scale && axis->org_delta == delta )
- return;
-
- axis->org_scale = scale;
- axis->org_delta = delta;
-
- /*
- * correct Y scale to optimize the alignment of the top of small
- * letters to the pixel grid
- */
- if ( dim == AF_DIMENSION_VERT )
- {
- AF_LatinAxis vaxis = &metrics->axis[AF_DIMENSION_VERT];
- AF_LatinBlue blue = NULL;
-
-
- for ( nn = 0; nn < vaxis->blue_count; nn++ )
- {
- if ( vaxis->blues[nn].flags & AF_LATIN_BLUE_ADJUSTMENT )
- {
- blue = &vaxis->blues[nn];
- break;
- }
- }
-
- if ( blue )
- {
- FT_Pos scaled;
- FT_Pos threshold;
- FT_Pos fitted;
- FT_UInt limit;
- FT_UInt ppem;
-
-
- scaled = FT_MulFix( blue->shoot.org, scaler->y_scale );
- ppem = metrics->root.scaler.face->size->metrics.x_ppem;
- limit = metrics->root.globals->increase_x_height;
- threshold = 40;
-
- /* if the `increase-x-height' property is active, */
- /* we round up much more often */
- if ( limit &&
- ppem <= limit &&
- ppem >= AF_PROP_INCREASE_X_HEIGHT_MIN )
- threshold = 52;
-
- fitted = ( scaled + threshold ) & ~63;
-
-#if 1
- if ( scaled != fitted )
- {
- scale = FT_MulDiv( scale, fitted, scaled );
- FT_TRACE5(( "== scaled x-top = %.2g"
- " fitted = %.2g, scaling = %.4g\n",
- scaled / 64.0, fitted / 64.0,
- ( fitted * 1.0 ) / scaled ));
- }
-#endif
- }
- }
-
- axis->scale = scale;
- axis->delta = delta;
-
- if ( dim == AF_DIMENSION_HORZ )
- {
- metrics->root.scaler.x_scale = scale;
- metrics->root.scaler.x_delta = delta;
- }
- else
- {
- metrics->root.scaler.y_scale = scale;
- metrics->root.scaler.y_delta = delta;
- }
-
- /* scale the standard widths */
- for ( nn = 0; nn < axis->width_count; nn++ )
- {
- AF_Width width = axis->widths + nn;
-
-
- width->cur = FT_MulFix( width->org, scale );
- width->fit = width->cur;
- }
-
- /* an extra-light axis corresponds to a standard width that is */
- /* smaller than 5/8 pixels */
- axis->extra_light =
- FT_BOOL( FT_MulFix( axis->standard_width, scale ) < 32 + 8 );
-
- if ( dim == AF_DIMENSION_VERT )
- {
- /* scale the blue zones */
- for ( nn = 0; nn < axis->blue_count; nn++ )
- {
- AF_LatinBlue blue = &axis->blues[nn];
- FT_Pos dist;
-
-
- blue->ref.cur = FT_MulFix( blue->ref.org, scale ) + delta;
- blue->ref.fit = blue->ref.cur;
- blue->shoot.cur = FT_MulFix( blue->shoot.org, scale ) + delta;
- blue->shoot.fit = blue->shoot.cur;
- blue->flags &= ~AF_LATIN_BLUE_ACTIVE;
-
- /* a blue zone is only active if it is less than 3/4 pixels tall */
- dist = FT_MulFix( blue->ref.org - blue->shoot.org, scale );
- if ( dist <= 48 && dist >= -48 )
- {
- FT_Pos delta1, delta2;
-
- delta1 = blue->shoot.org - blue->ref.org;
- delta2 = delta1;
- if ( delta1 < 0 )
- delta2 = -delta2;
-
- delta2 = FT_MulFix( delta2, scale );
-
- if ( delta2 < 32 )
- delta2 = 0;
- else if ( delta2 < 64 )
- delta2 = 32 + ( ( ( delta2 - 32 ) + 16 ) & ~31 );
- else
- delta2 = FT_PIX_ROUND( delta2 );
-
- if ( delta1 < 0 )
- delta2 = -delta2;
-
- blue->ref.fit = FT_PIX_ROUND( blue->ref.cur );
- blue->shoot.fit = blue->ref.fit + delta2;
-
- FT_TRACE5(( ">> activating blue zone %d:"
- " ref.cur=%.2g ref.fit=%.2g"
- " shoot.cur=%.2g shoot.fit=%.2g\n",
- nn, blue->ref.cur / 64.0, blue->ref.fit / 64.0,
- blue->shoot.cur / 64.0, blue->shoot.fit / 64.0 ));
-
- blue->flags |= AF_LATIN_BLUE_ACTIVE;
- }
- }
- }
- }
-
-
- FT_LOCAL_DEF( void )
- af_latin2_metrics_scale( AF_LatinMetrics metrics,
- AF_Scaler scaler )
- {
- metrics->root.scaler.render_mode = scaler->render_mode;
- metrics->root.scaler.face = scaler->face;
- metrics->root.scaler.flags = scaler->flags;
-
- af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_HORZ );
- af_latin2_metrics_scale_dim( metrics, scaler, AF_DIMENSION_VERT );
- }
-
-
- /* Extract standard_width from writing system/script specific */
- /* metrics class. */
-
- FT_LOCAL_DEF( void )
- af_latin2_get_standard_widths( AF_LatinMetrics metrics,
- FT_Pos* stdHW,
- FT_Pos* stdVW )
- {
- if ( stdHW )
- *stdHW = metrics->axis[AF_DIMENSION_VERT].standard_width;
-
- if ( stdVW )
- *stdVW = metrics->axis[AF_DIMENSION_HORZ].standard_width;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** L A T I N G L Y P H A N A L Y S I S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
-#define SORT_SEGMENTS
-
- FT_LOCAL_DEF( FT_Error )
- af_latin2_hints_compute_segments( AF_GlyphHints hints,
- AF_Dimension dim )
- {
- AF_AxisHints axis = &hints->axis[dim];
- FT_Memory memory = hints->memory;
- FT_Error error = FT_Err_Ok;
- AF_Segment segment = NULL;
- AF_SegmentRec seg0;
- AF_Point* contour = hints->contours;
- AF_Point* contour_limit = contour + hints->num_contours;
- AF_Direction major_dir, segment_dir;
-
-
- FT_ZERO( &seg0 );
- seg0.score = 32000;
- seg0.flags = AF_EDGE_NORMAL;
-
- major_dir = (AF_Direction)FT_ABS( axis->major_dir );
- segment_dir = major_dir;
-
- axis->num_segments = 0;
-
- /* set up (u,v) in each point */
- if ( dim == AF_DIMENSION_HORZ )
- {
- AF_Point point = hints->points;
- AF_Point limit = point + hints->num_points;
-
-
- for ( ; point < limit; point++ )
- {
- point->u = point->fx;
- point->v = point->fy;
- }
- }
- else
- {
- AF_Point point = hints->points;
- AF_Point limit = point + hints->num_points;
-
-
- for ( ; point < limit; point++ )
- {
- point->u = point->fy;
- point->v = point->fx;
- }
- }
-
- /* do each contour separately */
- for ( ; contour < contour_limit; contour++ )
- {
- AF_Point point = contour[0];
- AF_Point start = point;
- AF_Point last = point->prev;
-
-
- if ( point == last ) /* skip singletons -- just in case */
- continue;
-
- /* already on an edge ?, backtrack to find its start */
- if ( FT_ABS( point->in_dir ) == major_dir )
- {
- point = point->prev;
-
- while ( point->in_dir == start->in_dir )
- point = point->prev;
- }
- else /* otherwise, find first segment start, if any */
- {
- while ( FT_ABS( point->out_dir ) != major_dir )
- {
- point = point->next;
-
- if ( point == start )
- goto NextContour;
- }
- }
-
- start = point;
-
- for (;;)
- {
- AF_Point first;
- FT_Pos min_u, min_v, max_u, max_v;
-
- /* we're at the start of a new segment */
- FT_ASSERT( FT_ABS( point->out_dir ) == major_dir &&
- point->in_dir != point->out_dir );
- first = point;
-
- min_u = max_u = point->u;
- min_v = max_v = point->v;
-
- point = point->next;
-
- while ( point->out_dir == first->out_dir )
- {
- point = point->next;
-
- if ( point->u < min_u )
- min_u = point->u;
-
- if ( point->u > max_u )
- max_u = point->u;
- }
-
- if ( point->v < min_v )
- min_v = point->v;
-
- if ( point->v > max_v )
- max_v = point->v;
-
- /* record new segment */
- error = af_axis_hints_new_segment( axis, memory, &segment );
- if ( error )
- goto Exit;
-
- segment[0] = seg0;
- segment->dir = first->out_dir;
- segment->first = first;
- segment->last = point;
- segment->pos = (FT_Short)( ( min_u + max_u ) >> 1 );
- segment->min_coord = (FT_Short) min_v;
- segment->max_coord = (FT_Short) max_v;
- segment->height = (FT_Short)( max_v - min_v );
-
- /* a segment is round if it doesn't have successive */
- /* on-curve points. */
- {
- AF_Point pt = first;
- AF_Point last = point;
- FT_UInt f0 = pt->flags & AF_FLAG_CONTROL;
- FT_UInt f1;
-
-
- segment->flags &= ~AF_EDGE_ROUND;
-
- for ( ; pt != last; f0 = f1 )
- {
- pt = pt->next;
- f1 = pt->flags & AF_FLAG_CONTROL;
-
- if ( !f0 && !f1 )
- break;
-
- if ( pt == last )
- segment->flags |= AF_EDGE_ROUND;
- }
- }
-
- /* this can happen in the case of a degenerate contour
- * e.g. a 2-point vertical contour
- */
- if ( point == start )
- break;
-
- /* jump to the start of the next segment, if any */
- while ( FT_ABS( point->out_dir ) != major_dir )
- {
- point = point->next;
-
- if ( point == start )
- goto NextContour;
- }
- }
-
- NextContour:
- ;
- } /* contours */
-
- /* now slightly increase the height of segments when this makes */
- /* sense -- this is used to better detect and ignore serifs */
- {
- AF_Segment segments = axis->segments;
- AF_Segment segments_end = segments + axis->num_segments;
-
-
- for ( segment = segments; segment < segments_end; segment++ )
- {
- AF_Point first = segment->first;
- AF_Point last = segment->last;
- AF_Point p;
- FT_Pos first_v = first->v;
- FT_Pos last_v = last->v;
-
-
- if ( first_v < last_v )
- {
- p = first->prev;
- if ( p->v < first_v )
- segment->height = (FT_Short)( segment->height +
- ( ( first_v - p->v ) >> 1 ) );
-
- p = last->next;
- if ( p->v > last_v )
- segment->height = (FT_Short)( segment->height +
- ( ( p->v - last_v ) >> 1 ) );
- }
- else
- {
- p = first->prev;
- if ( p->v > first_v )
- segment->height = (FT_Short)( segment->height +
- ( ( p->v - first_v ) >> 1 ) );
-
- p = last->next;
- if ( p->v < last_v )
- segment->height = (FT_Short)( segment->height +
- ( ( last_v - p->v ) >> 1 ) );
- }
- }
- }
-
-#ifdef AF_SORT_SEGMENTS
- /* place all segments with a negative direction to the start
- * of the array, used to speed up segment linking later...
- */
- {
- AF_Segment segments = axis->segments;
- FT_UInt count = axis->num_segments;
- FT_UInt ii, jj;
-
- for ( ii = 0; ii < count; ii++ )
- {
- if ( segments[ii].dir > 0 )
- {
- for ( jj = ii + 1; jj < count; jj++ )
- {
- if ( segments[jj].dir < 0 )
- {
- AF_SegmentRec tmp;
-
-
- tmp = segments[ii];
- segments[ii] = segments[jj];
- segments[jj] = tmp;
-
- break;
- }
- }
-
- if ( jj == count )
- break;
- }
- }
- axis->mid_segments = ii;
- }
-#endif
-
- Exit:
- return error;
- }
-
-
- FT_LOCAL_DEF( void )
- af_latin2_hints_link_segments( AF_GlyphHints hints,
- AF_Dimension dim )
- {
- AF_AxisHints axis = &hints->axis[dim];
- AF_Segment segments = axis->segments;
- AF_Segment segment_limit = segments + axis->num_segments;
-#ifdef AF_SORT_SEGMENTS
- AF_Segment segment_mid = segments + axis->mid_segments;
-#endif
- FT_Pos len_threshold, len_score;
- AF_Segment seg1, seg2;
-
-
- len_threshold = AF_LATIN_CONSTANT( hints->metrics, 8 );
- if ( len_threshold == 0 )
- len_threshold = 1;
-
- len_score = AF_LATIN_CONSTANT( hints->metrics, 6000 );
-
-#ifdef AF_SORT_SEGMENTS
- for ( seg1 = segments; seg1 < segment_mid; seg1++ )
- {
- if ( seg1->dir != axis->major_dir )
- continue;
-
- for ( seg2 = segment_mid; seg2 < segment_limit; seg2++ )
-#else
- /* now compare each segment to the others */
- for ( seg1 = segments; seg1 < segment_limit; seg1++ )
- {
- if ( seg1->dir != axis->major_dir )
- continue;
-
- for ( seg2 = segments; seg2 < segment_limit; seg2++ )
- if ( seg1->dir + seg2->dir == 0 && seg2->pos > seg1->pos )
-#endif
- {
- FT_Pos pos1 = seg1->pos;
- FT_Pos pos2 = seg2->pos;
- FT_Pos dist = pos2 - pos1;
-
-
- if ( dist < 0 )
- continue;
-
- {
- FT_Pos min = seg1->min_coord;
- FT_Pos max = seg1->max_coord;
- FT_Pos len, score;
-
-
- if ( min < seg2->min_coord )
- min = seg2->min_coord;
-
- if ( max > seg2->max_coord )
- max = seg2->max_coord;
-
- len = max - min;
- if ( len >= len_threshold )
- {
- score = dist + len_score / len;
- if ( score < seg1->score )
- {
- seg1->score = score;
- seg1->link = seg2;
- }
-
- if ( score < seg2->score )
- {
- seg2->score = score;
- seg2->link = seg1;
- }
- }
- }
- }
- }
-#if 0
- }
-#endif
-
- /* now, compute the `serif' segments */
- for ( seg1 = segments; seg1 < segment_limit; seg1++ )
- {
- seg2 = seg1->link;
-
- if ( seg2 )
- {
- if ( seg2->link != seg1 )
- {
- seg1->link = NULL;
- seg1->serif = seg2->link;
- }
- }
- }
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- af_latin2_hints_compute_edges( AF_GlyphHints hints,
- AF_Dimension dim )
- {
- AF_AxisHints axis = &hints->axis[dim];
- FT_Error error = FT_Err_Ok;
- FT_Memory memory = hints->memory;
- AF_LatinAxis laxis = &((AF_LatinMetrics)hints->metrics)->axis[dim];
-
- AF_Segment segments = axis->segments;
- AF_Segment segment_limit = segments + axis->num_segments;
- AF_Segment seg;
-
- AF_Direction up_dir;
- FT_Fixed scale;
- FT_Pos edge_distance_threshold;
- FT_Pos segment_length_threshold;
-
-
- axis->num_edges = 0;
-
- scale = ( dim == AF_DIMENSION_HORZ ) ? hints->x_scale
- : hints->y_scale;
-
- up_dir = ( dim == AF_DIMENSION_HORZ ) ? AF_DIR_UP
- : AF_DIR_RIGHT;
-
- /*
- * We want to ignore very small (mostly serif) segments, we do that
- * by ignoring those that whose length is less than a given fraction
- * of the standard width. If there is no standard width, we ignore
- * those that are less than a given size in pixels
- *
- * also, unlink serif segments that are linked to segments farther
- * than 50% of the standard width
- */
- if ( dim == AF_DIMENSION_HORZ )
- {
- if ( laxis->width_count > 0 )
- segment_length_threshold = ( laxis->standard_width * 10 ) >> 4;
- else
- segment_length_threshold = FT_DivFix( 64, hints->y_scale );
- }
- else
- segment_length_threshold = 0;
-
- /**********************************************************************
- *
- * We will begin by generating a sorted table of edges for the
- * current direction. To do so, we simply scan each segment and try
- * to find an edge in our table that corresponds to its position.
- *
- * If no edge is found, we create and insert a new edge in the
- * sorted table. Otherwise, we simply add the segment to the edge's
- * list which will be processed in the second step to compute the
- * edge's properties.
- *
- * Note that the edges table is sorted along the segment/edge
- * position.
- *
- */
-
- edge_distance_threshold = FT_MulFix( laxis->edge_distance_threshold,
- scale );
- if ( edge_distance_threshold > 64 / 4 )
- edge_distance_threshold = 64 / 4;
-
- edge_distance_threshold = FT_DivFix( edge_distance_threshold,
- scale );
-
- for ( seg = segments; seg < segment_limit; seg++ )
- {
- AF_Edge found = NULL;
- FT_Int ee;
-
-
- if ( seg->height < segment_length_threshold )
- continue;
-
- /* A special case for serif edges: If they are smaller than */
- /* 1.5 pixels we ignore them. */
- if ( seg->serif )
- {
- FT_Pos dist = seg->serif->pos - seg->pos;
-
-
- if ( dist < 0 )
- dist = -dist;
-
- if ( dist >= laxis->standard_width >> 1 )
- {
- /* unlink this serif, it is too distant from its reference stem */
- seg->serif = NULL;
- }
- else if ( 2*seg->height < 3 * segment_length_threshold )
- continue;
- }
-
- /* look for an edge corresponding to the segment */
- for ( ee = 0; ee < axis->num_edges; ee++ )
- {
- AF_Edge edge = axis->edges + ee;
- FT_Pos dist;
-
-
- dist = seg->pos - edge->fpos;
- if ( dist < 0 )
- dist = -dist;
-
- if ( dist < edge_distance_threshold && edge->dir == seg->dir )
- {
- found = edge;
- break;
- }
- }
-
- if ( !found )
- {
- AF_Edge edge;
-
-
- /* insert a new edge in the list and */
- /* sort according to the position */
- error = af_axis_hints_new_edge( axis, seg->pos, seg->dir, 0,
- memory, &edge );
- if ( error )
- goto Exit;
-
- /* add the segment to the new edge's list */
- FT_ZERO( edge );
-
- edge->first = seg;
- edge->last = seg;
- edge->dir = seg->dir;
- edge->fpos = seg->pos;
- edge->opos = FT_MulFix( seg->pos, scale );
- edge->pos = edge->opos;
- seg->edge_next = seg;
- }
- else
- {
- /* if an edge was found, simply add the segment to the edge's */
- /* list */
- seg->edge_next = found->first;
- found->last->edge_next = seg;
- found->last = seg;
- }
- }
-
-
- /**********************************************************************
- *
- * Good, we will now compute each edge's properties according to
- * segments found on its position. Basically, these are:
- *
- * - edge's main direction
- * - stem edge, serif edge or both (which defaults to stem then)
- * - rounded edge, straight or both (which defaults to straight)
- * - link for edge
- *
- */
-
- /* first of all, set the `edge' field in each segment -- this is */
- /* required in order to compute edge links */
-
- /*
- * Note that removing this loop and setting the `edge' field of each
- * segment directly in the code above slows down execution speed for
- * some reasons on platforms like the Sun.
- */
- {
- AF_Edge edges = axis->edges;
- AF_Edge edge_limit = edges + axis->num_edges;
- AF_Edge edge;
-
-
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- seg = edge->first;
- if ( seg )
- do
- {
- seg->edge = edge;
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
- }
-
- /* now, compute each edge properties */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- FT_Int is_round = 0; /* does it contain round segments? */
- FT_Int is_straight = 0; /* does it contain straight segments? */
-#if 0
- FT_Pos ups = 0; /* number of upwards segments */
- FT_Pos downs = 0; /* number of downwards segments */
-#endif
-
-
- seg = edge->first;
-
- do
- {
- FT_Bool is_serif;
-
-
- /* check for roundness of segment */
- if ( seg->flags & AF_EDGE_ROUND )
- is_round++;
- else
- is_straight++;
-
-#if 0
- /* check for segment direction */
- if ( seg->dir == up_dir )
- ups += seg->max_coord-seg->min_coord;
- else
- downs += seg->max_coord-seg->min_coord;
-#endif
-
- /* check for links -- if seg->serif is set, then seg->link must */
- /* be ignored */
- is_serif = FT_BOOL( seg->serif &&
- seg->serif->edge &&
- seg->serif->edge != edge );
-
- if ( ( seg->link && seg->link->edge ) || is_serif )
- {
- AF_Edge edge2;
- AF_Segment seg2;
-
-
- edge2 = edge->link;
- seg2 = seg->link;
-
- if ( is_serif )
- {
- seg2 = seg->serif;
- edge2 = edge->serif;
- }
-
- if ( edge2 )
- {
- FT_Pos edge_delta;
- FT_Pos seg_delta;
-
-
- edge_delta = edge->fpos - edge2->fpos;
- if ( edge_delta < 0 )
- edge_delta = -edge_delta;
-
- seg_delta = seg->pos - seg2->pos;
- if ( seg_delta < 0 )
- seg_delta = -seg_delta;
-
- if ( seg_delta < edge_delta )
- edge2 = seg2->edge;
- }
- else
- edge2 = seg2->edge;
-
- if ( is_serif )
- {
- edge->serif = edge2;
- edge2->flags |= AF_EDGE_SERIF;
- }
- else
- edge->link = edge2;
- }
-
- seg = seg->edge_next;
-
- } while ( seg != edge->first );
-
- /* set the round/straight flags */
- edge->flags = AF_EDGE_NORMAL;
-
- if ( is_round > 0 && is_round >= is_straight )
- edge->flags |= AF_EDGE_ROUND;
-
-#if 0
- /* set the edge's main direction */
- edge->dir = AF_DIR_NONE;
-
- if ( ups > downs )
- edge->dir = (FT_Char)up_dir;
-
- else if ( ups < downs )
- edge->dir = (FT_Char)-up_dir;
-
- else if ( ups == downs )
- edge->dir = 0; /* both up and down! */
-#endif
-
- /* gets rid of serifs if link is set */
- /* XXX: This gets rid of many unpleasant artefacts! */
- /* Example: the `c' in cour.pfa at size 13 */
-
- if ( edge->serif && edge->link )
- edge->serif = NULL;
- }
- }
-
- Exit:
- return error;
- }
-
-
- FT_LOCAL_DEF( FT_Error )
- af_latin2_hints_detect_features( AF_GlyphHints hints,
- AF_Dimension dim )
- {
- FT_Error error;
-
-
- error = af_latin2_hints_compute_segments( hints, dim );
- if ( !error )
- {
- af_latin2_hints_link_segments( hints, dim );
-
- error = af_latin2_hints_compute_edges( hints, dim );
- }
- return error;
- }
-
-
- static void
- af_latin2_hints_compute_blue_edges( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
- {
- AF_AxisHints axis = &hints->axis[AF_DIMENSION_VERT];
- AF_Edge edge = axis->edges;
- AF_Edge edge_limit = edge + axis->num_edges;
- AF_LatinAxis latin = &metrics->axis[AF_DIMENSION_VERT];
- FT_Fixed scale = latin->scale;
- FT_Pos best_dist0; /* initial threshold */
-
-
- /* compute the initial threshold as a fraction of the EM size */
- best_dist0 = FT_MulFix( metrics->units_per_em / 40, scale );
-
- if ( best_dist0 > 64 / 2 )
- best_dist0 = 64 / 2;
-
- /* compute which blue zones are active, i.e. have their scaled */
- /* size < 3/4 pixels */
-
- /* for each horizontal edge search the blue zone which is closest */
- for ( ; edge < edge_limit; edge++ )
- {
- FT_Int bb;
- AF_Width best_blue = NULL;
- FT_Pos best_dist = best_dist0;
-
- for ( bb = 0; bb < AF_LATIN_BLUE_MAX; bb++ )
- {
- AF_LatinBlue blue = latin->blues + bb;
- FT_Bool is_top_blue, is_major_dir;
-
-
- /* skip inactive blue zones (i.e., those that are too small) */
- if ( !( blue->flags & AF_LATIN_BLUE_ACTIVE ) )
- continue;
-
- /* if it is a top zone, check for right edges -- if it is a bottom */
- /* zone, check for left edges */
- /* */
- /* of course, that's for TrueType */
- is_top_blue = (FT_Byte)( ( blue->flags & AF_LATIN_BLUE_TOP ) != 0 );
- is_major_dir = FT_BOOL( edge->dir == axis->major_dir );
-
- /* if it is a top zone, the edge must be against the major */
- /* direction; if it is a bottom zone, it must be in the major */
- /* direction */
- if ( is_top_blue ^ is_major_dir )
- {
- FT_Pos dist;
- AF_Width compare;
-
-
- /* if it's a rounded edge, compare it to the overshoot position */
- /* if it's a flat edge, compare it to the reference position */
- if ( edge->flags & AF_EDGE_ROUND )
- compare = &blue->shoot;
- else
- compare = &blue->ref;
-
- dist = edge->fpos - compare->org;
- if ( dist < 0 )
- dist = -dist;
-
- dist = FT_MulFix( dist, scale );
- if ( dist < best_dist )
- {
- best_dist = dist;
- best_blue = compare;
- }
-
-#if 0
- /* now, compare it to the overshoot position if the edge is */
- /* rounded, and if the edge is over the reference position of a */
- /* top zone, or under the reference position of a bottom zone */
- if ( edge->flags & AF_EDGE_ROUND && dist != 0 )
- {
- FT_Bool is_under_ref = FT_BOOL( edge->fpos < blue->ref.org );
-
-
- if ( is_top_blue ^ is_under_ref )
- {
- blue = latin->blues + bb;
- dist = edge->fpos - blue->shoot.org;
- if ( dist < 0 )
- dist = -dist;
-
- dist = FT_MulFix( dist, scale );
- if ( dist < best_dist )
- {
- best_dist = dist;
- best_blue = & blue->shoot;
- }
- }
- }
-#endif
- }
- }
-
- if ( best_blue )
- edge->blue_edge = best_blue;
- }
- }
-
-
- static FT_Error
- af_latin2_hints_init( AF_GlyphHints hints,
- AF_LatinMetrics metrics )
- {
- FT_Render_Mode mode;
- FT_UInt32 scaler_flags, other_flags;
- FT_Face face = metrics->root.scaler.face;
-
-
- af_glyph_hints_rescale( hints, (AF_StyleMetrics)metrics );
-
- /*
- * correct x_scale and y_scale if needed, since they may have
- * been modified `af_latin2_metrics_scale_dim' above
- */
- hints->x_scale = metrics->axis[AF_DIMENSION_HORZ].scale;
- hints->x_delta = metrics->axis[AF_DIMENSION_HORZ].delta;
- hints->y_scale = metrics->axis[AF_DIMENSION_VERT].scale;
- hints->y_delta = metrics->axis[AF_DIMENSION_VERT].delta;
-
- /* compute flags depending on render mode, etc. */
- mode = metrics->root.scaler.render_mode;
-
-#if 0 /* #ifdef AF_CONFIG_OPTION_USE_WARPER */
- if ( mode == FT_RENDER_MODE_LCD || mode == FT_RENDER_MODE_LCD_V )
- metrics->root.scaler.render_mode = mode = FT_RENDER_MODE_NORMAL;
-#endif
-
- scaler_flags = hints->scaler_flags;
- other_flags = 0;
-
- /*
- * We snap the width of vertical stems for the monochrome and
- * horizontal LCD rendering targets only.
- */
- if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD )
- other_flags |= AF_LATIN_HINTS_HORZ_SNAP;
-
- /*
- * We snap the width of horizontal stems for the monochrome and
- * vertical LCD rendering targets only.
- */
- if ( mode == FT_RENDER_MODE_MONO || mode == FT_RENDER_MODE_LCD_V )
- other_flags |= AF_LATIN_HINTS_VERT_SNAP;
-
- /*
- * We adjust stems to full pixels unless in `light' or `lcd' mode.
- */
- if ( mode != FT_RENDER_MODE_LIGHT && mode != FT_RENDER_MODE_LCD )
- other_flags |= AF_LATIN_HINTS_STEM_ADJUST;
-
- if ( mode == FT_RENDER_MODE_MONO )
- other_flags |= AF_LATIN_HINTS_MONO;
-
- /*
- * In `light' or `lcd' mode we disable horizontal hinting completely.
- * We also do it if the face is italic.
- */
- if ( mode == FT_RENDER_MODE_LIGHT || mode == FT_RENDER_MODE_LCD ||
- ( face->style_flags & FT_STYLE_FLAG_ITALIC ) != 0 )
- scaler_flags |= AF_SCALER_FLAG_NO_HORIZONTAL;
-
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- /* get (global) warper flag */
- if ( !metrics->root.globals->module->warping )
- scaler_flags |= AF_SCALER_FLAG_NO_WARPER;
-#endif
-
- hints->scaler_flags = scaler_flags;
- hints->other_flags = other_flags;
-
- return 0;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** L A T I N G L Y P H G R I D - F I T T I N G *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
- /* snap a given width in scaled coordinates to one of the */
- /* current standard widths */
-
- static FT_Pos
- af_latin2_snap_width( AF_Width widths,
- FT_UInt count,
- FT_Pos width )
- {
- FT_UInt n;
- FT_Pos best = 64 + 32 + 2;
- FT_Pos reference = width;
- FT_Pos scaled;
-
-
- for ( n = 0; n < count; n++ )
- {
- FT_Pos w;
- FT_Pos dist;
-
-
- w = widths[n].cur;
- dist = width - w;
- if ( dist < 0 )
- dist = -dist;
- if ( dist < best )
- {
- best = dist;
- reference = w;
- }
- }
-
- scaled = FT_PIX_ROUND( reference );
-
- if ( width >= reference )
- {
- if ( width < scaled + 48 )
- width = reference;
- }
- else
- {
- if ( width > scaled - 48 )
- width = reference;
- }
-
- return width;
- }
-
-
- /* compute the snapped width of a given stem */
-
- static FT_Pos
- af_latin2_compute_stem_width( AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Pos width,
- FT_UInt base_flags,
- FT_UInt stem_flags )
- {
- AF_LatinMetrics metrics = (AF_LatinMetrics) hints->metrics;
- AF_LatinAxis axis = & metrics->axis[dim];
- FT_Pos dist = width;
- FT_Int sign = 0;
- FT_Int vertical = ( dim == AF_DIMENSION_VERT );
-
- FT_UNUSED( base_flags );
-
-
- if ( !AF_LATIN_HINTS_DO_STEM_ADJUST( hints ) ||
- axis->extra_light )
- return width;
-
- if ( dist < 0 )
- {
- dist = -width;
- sign = 1;
- }
-
- if ( ( vertical && !AF_LATIN_HINTS_DO_VERT_SNAP( hints ) ) ||
- ( !vertical && !AF_LATIN_HINTS_DO_HORZ_SNAP( hints ) ) )
- {
- /* smooth hinting process: very lightly quantize the stem width */
-
- /* leave the widths of serifs alone */
-
- if ( ( stem_flags & AF_EDGE_SERIF ) && vertical && ( dist < 3 * 64 ) )
- goto Done_Width;
-
-#if 0
- else if ( ( base_flags & AF_EDGE_ROUND ) )
- {
- if ( dist < 80 )
- dist = 64;
- }
- else if ( dist < 56 )
- dist = 56;
-#endif
- if ( axis->width_count > 0 )
- {
- FT_Pos delta;
-
-
- /* compare to standard width */
- if ( axis->width_count > 0 )
- {
- delta = dist - axis->widths[0].cur;
-
- if ( delta < 0 )
- delta = -delta;
-
- if ( delta < 40 )
- {
- dist = axis->widths[0].cur;
- if ( dist < 48 )
- dist = 48;
-
- goto Done_Width;
- }
- }
-
- if ( dist < 3 * 64 )
- {
- delta = dist & 63;
- dist &= -64;
-
- if ( delta < 10 )
- dist += delta;
-
- else if ( delta < 32 )
- dist += 10;
-
- else if ( delta < 54 )
- dist += 54;
-
- else
- dist += delta;
- }
- else
- dist = ( dist + 32 ) & ~63;
- }
- }
- else
- {
- /* strong hinting process: snap the stem width to integer pixels */
- FT_Pos org_dist = dist;
-
-
- dist = af_latin2_snap_width( axis->widths, axis->width_count, dist );
-
- if ( vertical )
- {
- /* in the case of vertical hinting, always round */
- /* the stem heights to integer pixels */
-
- if ( dist >= 64 )
- dist = ( dist + 16 ) & ~63;
- else
- dist = 64;
- }
- else
- {
- if ( AF_LATIN_HINTS_DO_MONO( hints ) )
- {
- /* monochrome horizontal hinting: snap widths to integer pixels */
- /* with a different threshold */
-
- if ( dist < 64 )
- dist = 64;
- else
- dist = ( dist + 32 ) & ~63;
- }
- else
- {
- /* for horizontal anti-aliased hinting, we adopt a more subtle */
- /* approach: we strengthen small stems, round stems whose size */
- /* is between 1 and 2 pixels to an integer, otherwise nothing */
-
- if ( dist < 48 )
- dist = ( dist + 64 ) >> 1;
-
- else if ( dist < 128 )
- {
- /* We only round to an integer width if the corresponding */
- /* distortion is less than 1/4 pixel. Otherwise this */
- /* makes everything worse since the diagonals, which are */
- /* not hinted, appear a lot bolder or thinner than the */
- /* vertical stems. */
-
- FT_Int delta;
-
-
- dist = ( dist + 22 ) & ~63;
- delta = dist - org_dist;
- if ( delta < 0 )
- delta = -delta;
-
- if ( delta >= 16 )
- {
- dist = org_dist;
- if ( dist < 48 )
- dist = ( dist + 64 ) >> 1;
- }
- }
- else
- /* round otherwise to prevent color fringes in LCD mode */
- dist = ( dist + 32 ) & ~63;
- }
- }
- }
-
- Done_Width:
- if ( sign )
- dist = -dist;
-
- return dist;
- }
-
-
- /* align one stem edge relative to the previous stem edge */
-
- static void
- af_latin2_align_linked_edge( AF_GlyphHints hints,
- AF_Dimension dim,
- AF_Edge base_edge,
- AF_Edge stem_edge )
- {
- FT_Pos dist = stem_edge->opos - base_edge->opos;
-
- FT_Pos fitted_width = af_latin2_compute_stem_width( hints, dim, dist,
- base_edge->flags,
- stem_edge->flags );
-
-
- stem_edge->pos = base_edge->pos + fitted_width;
-
- FT_TRACE5(( "LINK: edge %d (opos=%.2f) linked to (%.2f), "
- "dist was %.2f, now %.2f\n",
- stem_edge-hints->axis[dim].edges, stem_edge->opos / 64.0,
- stem_edge->pos / 64.0, dist / 64.0, fitted_width / 64.0 ));
- }
-
-
- static void
- af_latin2_align_serif_edge( AF_GlyphHints hints,
- AF_Edge base,
- AF_Edge serif )
- {
- FT_UNUSED( hints );
-
- serif->pos = base->pos + ( serif->opos - base->opos );
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
- /**** ****/
- /**** E D G E H I N T I N G ****/
- /**** ****/
- /*************************************************************************/
- /*************************************************************************/
- /*************************************************************************/
-
-
- static void
- af_latin2_hint_edges( AF_GlyphHints hints,
- AF_Dimension dim )
- {
- AF_AxisHints axis = &hints->axis[dim];
- AF_Edge edges = axis->edges;
- AF_Edge edge_limit = edges + axis->num_edges;
- AF_Edge edge;
- AF_Edge anchor = NULL;
- FT_Int has_serifs = 0;
- FT_Pos anchor_drift = 0;
-
-
-
- FT_TRACE5(( "==== hinting %s edges =====\n",
- dim == AF_DIMENSION_HORZ ? "vertical" : "horizontal" ));
-
- /* we begin by aligning all stems relative to the blue zone */
- /* if needed -- that's only for horizontal edges */
-
- if ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_BLUES( hints ) )
- {
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- AF_Width blue;
- AF_Edge edge1, edge2;
-
-
- if ( edge->flags & AF_EDGE_DONE )
- continue;
-
- blue = edge->blue_edge;
- edge1 = NULL;
- edge2 = edge->link;
-
- if ( blue )
- {
- edge1 = edge;
- }
- else if ( edge2 && edge2->blue_edge )
- {
- blue = edge2->blue_edge;
- edge1 = edge2;
- edge2 = edge;
- }
-
- if ( !edge1 )
- continue;
-
- FT_TRACE5(( "BLUE: edge %d (opos=%.2f) snapped to (%.2f), "
- "was (%.2f)\n",
- edge1-edges, edge1->opos / 64.0, blue->fit / 64.0,
- edge1->pos / 64.0 ));
-
- edge1->pos = blue->fit;
- edge1->flags |= AF_EDGE_DONE;
-
- if ( edge2 && !edge2->blue_edge )
- {
- af_latin2_align_linked_edge( hints, dim, edge1, edge2 );
- edge2->flags |= AF_EDGE_DONE;
- }
-
- if ( !anchor )
- {
- anchor = edge;
-
- anchor_drift = ( anchor->pos - anchor->opos );
- if ( edge2 )
- anchor_drift = ( anchor_drift +
- ( edge2->pos - edge2->opos ) ) >> 1;
- }
- }
- }
-
- /* now we will align all stem edges, trying to maintain the */
- /* relative order of stems in the glyph */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- AF_Edge edge2;
-
-
- if ( edge->flags & AF_EDGE_DONE )
- continue;
-
- /* skip all non-stem edges */
- edge2 = edge->link;
- if ( !edge2 )
- {
- has_serifs++;
- continue;
- }
-
- /* now align the stem */
-
- /* this should not happen, but it's better to be safe */
- if ( edge2->blue_edge )
- {
- FT_TRACE5(( "ASSERTION FAILED for edge %d\n", edge2-edges ));
-
- af_latin2_align_linked_edge( hints, dim, edge2, edge );
- edge->flags |= AF_EDGE_DONE;
- continue;
- }
-
- if ( !anchor )
- {
- FT_Pos org_len, org_center, cur_len;
- FT_Pos cur_pos1, error1, error2, u_off, d_off;
-
-
- org_len = edge2->opos - edge->opos;
- cur_len = af_latin2_compute_stem_width( hints, dim, org_len,
- edge->flags,
- edge2->flags );
- if ( cur_len <= 64 )
- u_off = d_off = 32;
- else
- {
- u_off = 38;
- d_off = 26;
- }
-
- if ( cur_len < 96 )
- {
- org_center = edge->opos + ( org_len >> 1 );
-
- cur_pos1 = FT_PIX_ROUND( org_center );
-
- error1 = org_center - ( cur_pos1 - u_off );
- if ( error1 < 0 )
- error1 = -error1;
-
- error2 = org_center - ( cur_pos1 + d_off );
- if ( error2 < 0 )
- error2 = -error2;
-
- if ( error1 < error2 )
- cur_pos1 -= u_off;
- else
- cur_pos1 += d_off;
-
- edge->pos = cur_pos1 - cur_len / 2;
- edge2->pos = edge->pos + cur_len;
- }
- else
- edge->pos = FT_PIX_ROUND( edge->opos );
-
- FT_TRACE5(( "ANCHOR: edge %d (opos=%.2f) and %d (opos=%.2f)"
- " snapped to (%.2f) (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0 ));
- anchor = edge;
-
- edge->flags |= AF_EDGE_DONE;
-
- af_latin2_align_linked_edge( hints, dim, edge, edge2 );
-
- edge2->flags |= AF_EDGE_DONE;
-
- anchor_drift = ( ( anchor->pos - anchor->opos ) +
- ( edge2->pos - edge2->opos ) ) >> 1;
-
- FT_TRACE5(( "DRIFT: %.2f\n", anchor_drift/64.0 ));
- }
- else
- {
- FT_Pos org_pos, org_len, org_center, cur_center, cur_len;
- FT_Pos org_left, org_right;
-
-
- org_pos = edge->opos + anchor_drift;
- org_len = edge2->opos - edge->opos;
- org_center = org_pos + ( org_len >> 1 );
-
- cur_len = af_latin2_compute_stem_width( hints, dim, org_len,
- edge->flags,
- edge2->flags );
-
- org_left = org_pos + ( ( org_len - cur_len ) >> 1 );
- org_right = org_pos + ( ( org_len + cur_len ) >> 1 );
-
- FT_TRACE5(( "ALIGN: left=%.2f right=%.2f ",
- org_left / 64.0, org_right / 64.0 ));
- cur_center = org_center;
-
- if ( edge2->flags & AF_EDGE_DONE )
- {
- FT_TRACE5(( "\n" ));
- edge->pos = edge2->pos - cur_len;
- }
- else
- {
- /* we want to compare several displacement, and choose
- * the one that increases fitness while minimizing
- * distortion as well
- */
- FT_Pos displacements[6], scores[6], org, fit, delta;
- FT_UInt count = 0;
-
- /* note: don't even try to fit tiny stems */
- if ( cur_len < 32 )
- {
- FT_TRACE5(( "tiny stem\n" ));
- goto AlignStem;
- }
-
- /* if the span is within a single pixel, don't touch it */
- if ( FT_PIX_FLOOR( org_left ) == FT_PIX_CEIL( org_right ) )
- {
- FT_TRACE5(( "single pixel stem\n" ));
- goto AlignStem;
- }
-
- if ( cur_len <= 96 )
- {
- /* we want to avoid the absolute worst case which is
- * when the left and right edges of the span each represent
- * about 50% of the gray. we'd better want to change this
- * to 25/75%, since this is much more pleasant to the eye with
- * very acceptable distortion
- */
- FT_Pos frac_left = org_left & 63;
- FT_Pos frac_right = org_right & 63;
-
- if ( frac_left >= 22 && frac_left <= 42 &&
- frac_right >= 22 && frac_right <= 42 )
- {
- org = frac_left;
- fit = ( org <= 32 ) ? 16 : 48;
- delta = FT_ABS( fit - org );
- displacements[count] = fit - org;
- scores[count++] = delta;
- FT_TRACE5(( "dispA=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
-
- org = frac_right;
- fit = ( org <= 32 ) ? 16 : 48;
- delta = FT_ABS( fit - org );
- displacements[count] = fit - org;
- scores[count++] = delta;
- FT_TRACE5(( "dispB=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
- }
- }
-
- /* snapping the left edge to the grid */
- org = org_left;
- fit = FT_PIX_ROUND( org );
- delta = FT_ABS( fit - org );
- displacements[count] = fit - org;
- scores[count++] = delta;
- FT_TRACE5(( "dispC=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
-
- /* snapping the right edge to the grid */
- org = org_right;
- fit = FT_PIX_ROUND( org );
- delta = FT_ABS( fit - org );
- displacements[count] = fit - org;
- scores[count++] = delta;
- FT_TRACE5(( "dispD=%.2f (%d) ", ( fit - org ) / 64.0, delta ));
-
- /* now find the best displacement */
- {
- FT_Pos best_score = scores[0];
- FT_Pos best_disp = displacements[0];
- FT_UInt nn;
-
- for ( nn = 1; nn < count; nn++ )
- {
- if ( scores[nn] < best_score )
- {
- best_score = scores[nn];
- best_disp = displacements[nn];
- }
- }
-
- cur_center = org_center + best_disp;
- }
- FT_TRACE5(( "\n" ));
- }
-
- AlignStem:
- edge->pos = cur_center - ( cur_len >> 1 );
- edge2->pos = edge->pos + cur_len;
-
- FT_TRACE5(( "STEM1: %d (opos=%.2f) to %d (opos=%.2f)"
- " snapped to (%.2f) and (%.2f),"
- " org_len=%.2f cur_len=%.2f\n",
- edge-edges, edge->opos / 64.0,
- edge2-edges, edge2->opos / 64.0,
- edge->pos / 64.0, edge2->pos / 64.0,
- org_len / 64.0, cur_len / 64.0 ));
-
- edge->flags |= AF_EDGE_DONE;
- edge2->flags |= AF_EDGE_DONE;
-
- if ( edge > edges && edge->pos < edge[-1].pos )
- {
- FT_TRACE5(( "BOUND: %d (pos=%.2f) to (%.2f)\n",
- edge-edges, edge->pos / 64.0, edge[-1].pos / 64.0 ));
- edge->pos = edge[-1].pos;
- }
- }
- }
-
- /* make sure that lowercase m's maintain their symmetry */
-
- /* In general, lowercase m's have six vertical edges if they are sans */
- /* serif, or twelve if they are with serifs. This implementation is */
- /* based on that assumption, and seems to work very well with most */
- /* faces. However, if for a certain face this assumption is not */
- /* true, the m is just rendered like before. In addition, any stem */
- /* correction will only be applied to symmetrical glyphs (even if the */
- /* glyph is not an m), so the potential for unwanted distortion is */
- /* relatively low. */
-
- /* We don't handle horizontal edges since we can't easily assure that */
- /* the third (lowest) stem aligns with the base line; it might end up */
- /* one pixel higher or lower. */
-
-#if 0
- {
- FT_Int n_edges = edge_limit - edges;
-
-
- if ( dim == AF_DIMENSION_HORZ && ( n_edges == 6 || n_edges == 12 ) )
- {
- AF_Edge edge1, edge2, edge3;
- FT_Pos dist1, dist2, span, delta;
-
-
- if ( n_edges == 6 )
- {
- edge1 = edges;
- edge2 = edges + 2;
- edge3 = edges + 4;
- }
- else
- {
- edge1 = edges + 1;
- edge2 = edges + 5;
- edge3 = edges + 9;
- }
-
- dist1 = edge2->opos - edge1->opos;
- dist2 = edge3->opos - edge2->opos;
-
- span = dist1 - dist2;
- if ( span < 0 )
- span = -span;
-
- if ( span < 8 )
- {
- delta = edge3->pos - ( 2 * edge2->pos - edge1->pos );
- edge3->pos -= delta;
- if ( edge3->link )
- edge3->link->pos -= delta;
-
- /* move the serifs along with the stem */
- if ( n_edges == 12 )
- {
- ( edges + 8 )->pos -= delta;
- ( edges + 11 )->pos -= delta;
- }
-
- edge3->flags |= AF_EDGE_DONE;
- if ( edge3->link )
- edge3->link->flags |= AF_EDGE_DONE;
- }
- }
- }
-#endif
-
- if ( has_serifs || !anchor )
- {
- /*
- * now hint the remaining edges (serifs and single) in order
- * to complete our processing
- */
- for ( edge = edges; edge < edge_limit; edge++ )
- {
- FT_Pos delta;
-
-
- if ( edge->flags & AF_EDGE_DONE )
- continue;
-
- delta = 1000;
-
- if ( edge->serif )
- {
- delta = edge->serif->opos - edge->opos;
- if ( delta < 0 )
- delta = -delta;
- }
-
- if ( delta < 64 + 16 )
- {
- af_latin2_align_serif_edge( hints, edge->serif, edge );
- FT_TRACE5(( "SERIF: edge %d (opos=%.2f) serif to %d (opos=%.2f)"
- " aligned to (%.2f)\n",
- edge-edges, edge->opos / 64.0,
- edge->serif - edges, edge->serif->opos / 64.0,
- edge->pos / 64.0 ));
- }
- else if ( !anchor )
- {
- FT_TRACE5(( "SERIF_ANCHOR: edge %d (opos=%.2f)"
- " snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
- edge->pos = FT_PIX_ROUND( edge->opos );
- anchor = edge;
- }
- else
- {
- AF_Edge before, after;
-
-
- for ( before = edge - 1; before >= edges; before-- )
- if ( before->flags & AF_EDGE_DONE )
- break;
-
- for ( after = edge + 1; after < edge_limit; after++ )
- if ( after->flags & AF_EDGE_DONE )
- break;
-
- if ( before >= edges && before < edge &&
- after < edge_limit && after > edge )
- {
- if ( after->opos == before->opos )
- edge->pos = before->pos;
- else
- edge->pos = before->pos +
- FT_MulDiv( edge->opos - before->opos,
- after->pos - before->pos,
- after->opos - before->opos );
- FT_TRACE5(( "SERIF_LINK1: edge %d (opos=%.2f) snapped to (%.2f)"
- " from %d (opos=%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0,
- before - edges, before->opos / 64.0 ));
- }
- else
- {
- edge->pos = anchor->pos +
- ( ( edge->opos - anchor->opos + 16 ) & ~31 );
-
- FT_TRACE5(( "SERIF_LINK2: edge %d (opos=%.2f)"
- " snapped to (%.2f)\n",
- edge-edges, edge->opos / 64.0, edge->pos / 64.0 ));
- }
- }
-
- edge->flags |= AF_EDGE_DONE;
-
- if ( edge > edges && edge->pos < edge[-1].pos )
- edge->pos = edge[-1].pos;
-
- if ( edge + 1 < edge_limit &&
- edge[1].flags & AF_EDGE_DONE &&
- edge->pos > edge[1].pos )
- edge->pos = edge[1].pos;
- }
- }
- }
-
-
- static FT_Error
- af_latin2_hints_apply( FT_UInt glyph_index,
- AF_GlyphHints hints,
- FT_Outline* outline,
- AF_LatinMetrics metrics )
- {
- FT_Error error;
- int dim;
-
- FT_UNUSED( glyph_index );
-
-
- error = af_glyph_hints_reload( hints, outline );
- if ( error )
- goto Exit;
-
- /* analyze glyph outline */
- if ( AF_HINTS_DO_HORIZONTAL( hints ) )
- {
- error = af_latin2_hints_detect_features( hints, AF_DIMENSION_HORZ );
- if ( error )
- goto Exit;
- }
-
- if ( AF_HINTS_DO_VERTICAL( hints ) )
- {
- error = af_latin2_hints_detect_features( hints, AF_DIMENSION_VERT );
- if ( error )
- goto Exit;
-
- af_latin2_hints_compute_blue_edges( hints, metrics );
- }
-
- /* grid-fit the outline */
- for ( dim = 0; dim < AF_DIMENSION_MAX; dim++ )
- {
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- if ( dim == AF_DIMENSION_HORZ &&
- metrics->root.scaler.render_mode == FT_RENDER_MODE_NORMAL &&
- AF_HINTS_DO_WARP( hints ) )
- {
- AF_WarperRec warper;
- FT_Fixed scale;
- FT_Pos delta;
-
-
- af_warper_compute( &warper, hints, dim, &scale, &delta );
- af_glyph_hints_scale_dim( hints, dim, scale, delta );
- continue;
- }
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
-
- if ( ( dim == AF_DIMENSION_HORZ && AF_HINTS_DO_HORIZONTAL( hints ) ) ||
- ( dim == AF_DIMENSION_VERT && AF_HINTS_DO_VERTICAL( hints ) ) )
- {
- af_latin2_hint_edges( hints, (AF_Dimension)dim );
- af_glyph_hints_align_edge_points( hints, (AF_Dimension)dim );
- af_glyph_hints_align_strong_points( hints, (AF_Dimension)dim );
- af_glyph_hints_align_weak_points( hints, (AF_Dimension)dim );
- }
- }
- af_glyph_hints_save( hints, outline );
-
- Exit:
- return error;
- }
-
-
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** L A T I N S C R I P T C L A S S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
-
- AF_DEFINE_WRITING_SYSTEM_CLASS(
- af_latin2_writing_system_class,
-
- AF_WRITING_SYSTEM_LATIN2,
-
- sizeof ( AF_LatinMetricsRec ),
-
- (AF_WritingSystem_InitMetricsFunc) af_latin2_metrics_init, /* style_metrics_init */
- (AF_WritingSystem_ScaleMetricsFunc)af_latin2_metrics_scale, /* style_metrics_scale */
- (AF_WritingSystem_DoneMetricsFunc) NULL, /* style_metrics_done */
- (AF_WritingSystem_GetStdWidthsFunc)af_latin2_get_standard_widths, /* style_metrics_getstdw */
-
- (AF_WritingSystem_InitHintsFunc) af_latin2_hints_init, /* style_hints_init */
- (AF_WritingSystem_ApplyHintsFunc) af_latin2_hints_apply /* style_hints_apply */
- )
-
-#else /* !FT_OPTION_AUTOFIT2 */
-
- /* ANSI C doesn't like empty source files */
- typedef int _af_latin2_dummy;
-
-#endif /* !FT_OPTION_AUTOFIT2 */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/aflatin2.h b/thirdparty/freetype/src/autofit/aflatin2.h
deleted file mode 100644
index c2aebc49ac..0000000000
--- a/thirdparty/freetype/src/autofit/aflatin2.h
+++ /dev/null
@@ -1,46 +0,0 @@
-/* ATTENTION: This file doesn't compile. It is only here as a reference */
-/* of an alternative latin hinting algorithm that was always */
-/* marked as experimental. */
-
-
-/****************************************************************************
- *
- * aflatin2.h
- *
- * Auto-fitter hinting routines for latin writing system
- * (specification).
- *
- * Copyright (C) 2003-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#ifndef AFLATIN2_H_
-#define AFLATIN2_H_
-
-#include "afhints.h"
-
-
-FT_BEGIN_HEADER
-
-
- /* the `latin' writing system */
-
- AF_DECLARE_WRITING_SYSTEM_CLASS( af_latin2_writing_system_class )
-
-
-/* */
-
-FT_END_HEADER
-
-#endif /* AFLATIN_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afloader.c b/thirdparty/freetype/src/autofit/afloader.c
index c35d85c4cf..a06d49ad7e 100644
--- a/thirdparty/freetype/src/autofit/afloader.c
+++ b/thirdparty/freetype/src/autofit/afloader.c
@@ -4,7 +4,7 @@
*
* Auto-fitter glyph loading routines (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -105,7 +105,6 @@
globals->stem_darkening_for_ppem;
FT_Fixed em_size = af_intToFixed( face->units_per_EM );
- FT_Fixed em_ratio = FT_DivFix( af_intToFixed( 1000 ), em_size );
FT_Matrix scale_down_matrix = { 0x10000L, 0, 0, 0x10000L };
@@ -142,12 +141,11 @@
darken_by_font_units_x =
- af_intToFixed( af_loader_compute_darkening( loader,
- face,
- stdVW ) );
- darken_x = FT_DivFix( FT_MulFix( darken_by_font_units_x,
- size_metrics->x_scale ),
- em_ratio );
+ af_loader_compute_darkening( loader,
+ face,
+ stdVW ) ;
+ darken_x = FT_MulFix( darken_by_font_units_x,
+ size_metrics->x_scale );
globals->standard_vertical_width = stdVW;
globals->stem_darkening_for_ppem = size_metrics->x_ppem;
@@ -161,12 +159,11 @@
darken_by_font_units_y =
- af_intToFixed( af_loader_compute_darkening( loader,
- face,
- stdHW ) );
- darken_y = FT_DivFix( FT_MulFix( darken_by_font_units_y,
- size_metrics->y_scale ),
- em_ratio );
+ af_loader_compute_darkening( loader,
+ face,
+ stdHW ) ;
+ darken_y = FT_MulFix( darken_by_font_units_y,
+ size_metrics->y_scale );
globals->standard_horizontal_width = stdHW;
globals->stem_darkening_for_ppem = size_metrics->x_ppem;
@@ -300,12 +297,6 @@
if ( error )
goto Exit;
-#ifdef FT_OPTION_AUTOFIT2
- /* XXX: undocumented hook to activate the latin2 writing system. */
- if ( load_flags & ( 1UL << 20 ) )
- style_options = AF_STYLE_LTN2_DFLT;
-#endif
-
/*
* Glyphs (really code points) are assigned to scripts. Script
* analysis is done lazily: For each glyph that passes through here,
@@ -482,8 +473,8 @@
FT_Pos pp2x = loader->pp2.x;
- loader->pp1.x = FT_PIX_ROUND( pp1x + hints->xmin_delta );
- loader->pp2.x = FT_PIX_ROUND( pp2x + hints->xmax_delta );
+ loader->pp1.x = FT_PIX_ROUND( pp1x );
+ loader->pp2.x = FT_PIX_ROUND( pp2x );
slot->lsb_delta = loader->pp1.x - pp1x;
slot->rsb_delta = loader->pp2.x - pp2x;
@@ -594,7 +585,7 @@
*
* XXX: Currently a crude adaption of the original algorithm. Do better?
*/
- FT_LOCAL_DEF( FT_Int32 )
+ FT_LOCAL_DEF( FT_Fixed )
af_loader_compute_darkening( AF_Loader loader,
FT_Face face,
FT_Pos standard_width )
@@ -713,7 +704,7 @@
}
/* Convert darken_amount from per 1000 em to true character space. */
- return af_fixedToInt( FT_DivFix( darken_amount, em_ratio ) );
+ return FT_DivFix( darken_amount, em_ratio );
}
diff --git a/thirdparty/freetype/src/autofit/afloader.h b/thirdparty/freetype/src/autofit/afloader.h
index 97282371cd..b4936a8722 100644
--- a/thirdparty/freetype/src/autofit/afloader.h
+++ b/thirdparty/freetype/src/autofit/afloader.h
@@ -4,7 +4,7 @@
*
* Auto-fitter glyph loading routines (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -75,7 +75,7 @@ FT_BEGIN_HEADER
FT_UInt gindex,
FT_Int32 load_flags );
- FT_LOCAL_DEF( FT_Int32 )
+ FT_LOCAL_DEF( FT_Fixed )
af_loader_compute_darkening( AF_Loader loader,
FT_Face face,
FT_Pos standard_width );
diff --git a/thirdparty/freetype/src/autofit/afmodule.c b/thirdparty/freetype/src/autofit/afmodule.c
index e16494460e..76f9b3733b 100644
--- a/thirdparty/freetype/src/autofit/afmodule.c
+++ b/thirdparty/freetype/src/autofit/afmodule.c
@@ -4,7 +4,7 @@
*
* Auto-fitter module implementation (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -48,7 +48,7 @@
int _af_debug_disable_blue_hints;
/* we use a global object instead of a local one for debugging */
- AF_GlyphHintsRec _af_debug_hints_rec[1];
+ static AF_GlyphHintsRec _af_debug_hints_rec[1];
void* _af_debug_hints = _af_debug_hints_rec;
#endif
@@ -148,7 +148,7 @@
if ( !af_style_classes[ss] )
{
- FT_TRACE0(( "af_property_set: Invalid value %d for property `%s'\n",
+ FT_TRACE2(( "af_property_set: Invalid value %d for property `%s'\n",
*fallback_script, property_name ));
return FT_THROW( Invalid_Argument );
}
@@ -190,35 +190,6 @@
return error;
}
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- else if ( !ft_strcmp( property_name, "warping" ) )
- {
-#ifdef FT_CONFIG_OPTION_ENVIRONMENT_PROPERTIES
- if ( value_is_string )
- {
- const char* s = (const char*)value;
- long w = ft_strtol( s, NULL, 10 );
-
-
- if ( w == 0 )
- module->warping = 0;
- else if ( w == 1 )
- module->warping = 1;
- else
- return FT_THROW( Invalid_Argument );
- }
- else
-#endif
- {
- FT_Bool* warping = (FT_Bool*)value;
-
-
- module->warping = *warping;
- }
-
- return error;
- }
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
else if ( !ft_strcmp( property_name, "darkening-parameters" ) )
{
FT_Int* darken_params;
@@ -307,7 +278,7 @@
return error;
}
- FT_TRACE0(( "af_property_set: missing property `%s'\n",
+ FT_TRACE2(( "af_property_set: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -322,9 +293,6 @@
AF_Module module = (AF_Module)ft_module;
FT_UInt fallback_style = module->fallback_style;
FT_UInt default_script = module->default_script;
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- FT_Bool warping = module->warping;
-#endif
if ( !ft_strcmp( property_name, "glyph-to-script-map" ) )
@@ -371,17 +339,6 @@
return error;
}
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- else if ( !ft_strcmp( property_name, "warping" ) )
- {
- FT_Bool* val = (FT_Bool*)value;
-
-
- *val = warping;
-
- return error;
- }
-#endif /* AF_CONFIG_OPTION_USE_WARPER */
else if ( !ft_strcmp( property_name, "darkening-parameters" ) )
{
FT_Int* darken_params = module->darken_params;
@@ -410,7 +367,7 @@
return error;
}
- FT_TRACE0(( "af_property_get: missing property `%s'\n",
+ FT_TRACE2(( "af_property_get: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -447,9 +404,6 @@
module->fallback_style = AF_STYLE_FALLBACK;
module->default_script = AF_SCRIPT_DEFAULT;
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- module->warping = 0;
-#endif
module->no_stem_darkening = TRUE;
module->darken_params[0] = CFF_CONFIG_OPTION_DARKENING_PARAMETER_X1;
diff --git a/thirdparty/freetype/src/autofit/afmodule.h b/thirdparty/freetype/src/autofit/afmodule.h
index e8fe4a93aa..c5bd468201 100644
--- a/thirdparty/freetype/src/autofit/afmodule.h
+++ b/thirdparty/freetype/src/autofit/afmodule.h
@@ -4,7 +4,7 @@
*
* Auto-fitter module implementation (specification).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -37,9 +37,6 @@ FT_BEGIN_HEADER
FT_UInt fallback_style;
FT_UInt default_script;
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- FT_Bool warping;
-#endif
FT_Bool no_stem_darkening;
FT_Int darken_params[8];
diff --git a/thirdparty/freetype/src/autofit/afranges.c b/thirdparty/freetype/src/autofit/afranges.c
index c8ebf5e784..e06f182dd0 100644
--- a/thirdparty/freetype/src/autofit/afranges.c
+++ b/thirdparty/freetype/src/autofit/afranges.c
@@ -4,7 +4,7 @@
*
* Auto-fitter Unicode script ranges (body).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afranges.h b/thirdparty/freetype/src/autofit/afranges.h
index c2ffda4b0f..841d630aab 100644
--- a/thirdparty/freetype/src/autofit/afranges.h
+++ b/thirdparty/freetype/src/autofit/afranges.h
@@ -4,7 +4,7 @@
*
* Auto-fitter Unicode script ranges (specification).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afscript.h b/thirdparty/freetype/src/autofit/afscript.h
index 4cf9cc19f5..af78d573e1 100644
--- a/thirdparty/freetype/src/autofit/afscript.h
+++ b/thirdparty/freetype/src/autofit/afscript.h
@@ -4,7 +4,7 @@
*
* Auto-fitter scripts (specification only).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afshaper.c b/thirdparty/freetype/src/autofit/afshaper.c
index bbf7b6b1f9..5d078937e1 100644
--- a/thirdparty/freetype/src/autofit/afshaper.c
+++ b/thirdparty/freetype/src/autofit/afshaper.c
@@ -4,7 +4,7 @@
*
* HarfBuzz interface for accessing OpenType features (body).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -132,13 +132,24 @@
/* Convert a HarfBuzz script tag into the corresponding OpenType */
/* tag or tags -- some Indic scripts like Devanagari have an old */
/* and a new set of features. */
- hb_ot_tags_from_script( script,
- &script_tags[0],
- &script_tags[1] );
+ {
+ unsigned int tags_count = 3;
+ hb_tag_t tags[3];
+
+
+ hb_ot_tags_from_script_and_language( script,
+ HB_LANGUAGE_INVALID,
+ &tags_count,
+ tags,
+ NULL,
+ NULL );
+ script_tags[0] = tags_count > 0 ? tags[0] : HB_TAG_NONE;
+ script_tags[1] = tags_count > 1 ? tags[1] : HB_TAG_NONE;
+ script_tags[2] = tags_count > 2 ? tags[2] : HB_TAG_NONE;
+ }
- /* `hb_ot_tags_from_script' usually returns HB_OT_TAG_DEFAULT_SCRIPT */
- /* as the second tag. We change that to HB_TAG_NONE except for the */
- /* default script. */
+ /* If the second tag is HB_OT_TAG_DEFAULT_SCRIPT, change that to */
+ /* HB_TAG_NONE except for the default script. */
if ( default_script )
{
if ( script_tags[0] == HB_TAG_NONE )
@@ -157,9 +168,6 @@
/* HarfBuzz maps them to `DFLT', which we don't want to handle here */
if ( script_tags[0] == HB_OT_TAG_DEFAULT_SCRIPT )
goto Exit;
-
- if ( script_tags[1] == HB_OT_TAG_DEFAULT_SCRIPT )
- script_tags[1] = HB_TAG_NONE;
}
gsub_lookups = hb_set_create();
@@ -173,9 +181,9 @@
if ( hb_set_is_empty( gsub_lookups ) )
goto Exit; /* nothing to do */
- FT_TRACE4(( "GSUB lookups (style `%s'):\n"
- " ",
+ FT_TRACE4(( "GSUB lookups (style `%s'):\n",
af_style_names[style_class->style] ));
+ FT_TRACE4(( " " ));
#ifdef FT_DEBUG_LEVEL_TRACE
count = 0;
@@ -202,12 +210,13 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !count )
FT_TRACE4(( " (none)" ));
- FT_TRACE4(( "\n\n" ));
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( "\n" ));
#endif
- FT_TRACE4(( "GPOS lookups (style `%s'):\n"
- " ",
+ FT_TRACE4(( "GPOS lookups (style `%s'):\n",
af_style_names[style_class->style] ));
+ FT_TRACE4(( " " ));
gpos_lookups = hb_set_create();
hb_ot_layout_collect_lookups( face,
@@ -242,7 +251,8 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !count )
FT_TRACE4(( " (none)" ));
- FT_TRACE4(( "\n\n" ));
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( "\n" ));
#endif
/*
@@ -353,8 +363,10 @@
{
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !( count % 10 ) )
- FT_TRACE4(( "\n"
- " " ));
+ {
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( " " ));
+ }
FT_TRACE4(( " %d", idx ));
count++;
@@ -376,9 +388,12 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !count )
- FT_TRACE4(( "\n"
- " (none)" ));
- FT_TRACE4(( "\n\n" ));
+ {
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( " (none)" ));
+ }
+ FT_TRACE4(( "\n" ));
+ FT_TRACE4(( "\n" ));
#endif
Exit:
diff --git a/thirdparty/freetype/src/autofit/afshaper.h b/thirdparty/freetype/src/autofit/afshaper.h
index 138c27b32b..cf3f81342f 100644
--- a/thirdparty/freetype/src/autofit/afshaper.h
+++ b/thirdparty/freetype/src/autofit/afshaper.h
@@ -4,7 +4,7 @@
*
* HarfBuzz interface for accessing OpenType features (specification).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/autofit/afstyles.h b/thirdparty/freetype/src/autofit/afstyles.h
index 9113ec451e..64c808c581 100644
--- a/thirdparty/freetype/src/autofit/afstyles.h
+++ b/thirdparty/freetype/src/autofit/afstyles.h
@@ -4,7 +4,7 @@
*
* Auto-fitter styles (specification only).
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -299,15 +299,6 @@
AF_BLUE_STRINGSET_LATP,
AF_COVERAGE_DEFAULT )
-#ifdef FT_OPTION_AUTOFIT2
- STYLE( ltn2_dflt, LTN2_DFLT,
- "Latin 2 default style",
- AF_WRITING_SYSTEM_LATIN2,
- AF_SCRIPT_LATN,
- AF_BLUE_STRINGSET_LATN,
- AF_COVERAGE_DEFAULT )
-#endif
-
STYLE( lisu_dflt, LISU_DFLT,
"Lisu default style",
AF_WRITING_SYSTEM_LATIN,
diff --git a/thirdparty/freetype/src/autofit/aftypes.h b/thirdparty/freetype/src/autofit/aftypes.h
index 5f040c6b4b..1d792b9476 100644
--- a/thirdparty/freetype/src/autofit/aftypes.h
+++ b/thirdparty/freetype/src/autofit/aftypes.h
@@ -4,7 +4,7 @@
*
* Auto-fitter types (specification only).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -92,63 +92,6 @@ extern void* _af_debug_hints;
FT_Pos threshold );
- /*************************************************************************/
- /*************************************************************************/
- /***** *****/
- /***** A N G L E T Y P E S *****/
- /***** *****/
- /*************************************************************************/
- /*************************************************************************/
-
- /*
- * The auto-fitter doesn't need a very high angular accuracy;
- * this allows us to speed up some computations considerably with a
- * light Cordic algorithm (see afangles.c).
- */
-
- typedef FT_Int AF_Angle;
-
-
-#define AF_ANGLE_PI 256
-#define AF_ANGLE_2PI ( AF_ANGLE_PI * 2 )
-#define AF_ANGLE_PI2 ( AF_ANGLE_PI / 2 )
-#define AF_ANGLE_PI4 ( AF_ANGLE_PI / 4 )
-
-
-#if 0
- /*
- * compute the angle of a given 2-D vector
- */
- FT_LOCAL( AF_Angle )
- af_angle_atan( FT_Pos dx,
- FT_Pos dy );
-
-
- /*
- * compute `angle2 - angle1'; the result is always within
- * the range [-AF_ANGLE_PI .. AF_ANGLE_PI - 1]
- */
- FT_LOCAL( AF_Angle )
- af_angle_diff( AF_Angle angle1,
- AF_Angle angle2 );
-#endif /* 0 */
-
-
-#define AF_ANGLE_DIFF( result, angle1, angle2 ) \
- FT_BEGIN_STMNT \
- AF_Angle _delta = (angle2) - (angle1); \
- \
- \
- while ( _delta <= -AF_ANGLE_PI ) \
- _delta += AF_ANGLE_2PI; \
- \
- while ( _delta > AF_ANGLE_PI ) \
- _delta -= AF_ANGLE_2PI; \
- \
- result = _delta; \
- FT_END_STMNT
-
-
/*
* opaque handle to glyph-specific hints -- see `afhints.h' for more
* details
@@ -172,7 +115,6 @@ extern void* _af_debug_hints;
#define AF_SCALER_FLAG_NO_HORIZONTAL 1U /* disable horizontal hinting */
#define AF_SCALER_FLAG_NO_VERTICAL 2U /* disable vertical hinting */
#define AF_SCALER_FLAG_NO_ADVANCE 4U /* disable advance hinting */
-#define AF_SCALER_FLAG_NO_WARPER 8U /* disable warper */
typedef struct AF_ScalerRec_
@@ -256,7 +198,6 @@ extern void* _af_debug_hints;
* outline according to the results of the glyph analyzer.
*/
-#define AFWRTSYS_H_ /* don't load header files */
#undef WRITING_SYSTEM
#define WRITING_SYSTEM( ws, WS ) \
AF_WRITING_SYSTEM_ ## WS,
@@ -265,14 +206,12 @@ extern void* _af_debug_hints;
typedef enum AF_WritingSystem_
{
-#include "afwrtsys.h"
+#include "afws-iter.h"
AF_WRITING_SYSTEM_MAX /* do not remove */
} AF_WritingSystem;
-#undef AFWRTSYS_H_
-
typedef struct AF_WritingSystemClassRec_
{
diff --git a/thirdparty/freetype/src/autofit/afwarp.c b/thirdparty/freetype/src/autofit/afwarp.c
deleted file mode 100644
index 808280df5d..0000000000
--- a/thirdparty/freetype/src/autofit/afwarp.c
+++ /dev/null
@@ -1,373 +0,0 @@
-/****************************************************************************
- *
- * afwarp.c
- *
- * Auto-fitter warping algorithm (body).
- *
- * Copyright (C) 2006-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
- /*
- * The idea of the warping code is to slightly scale and shift a glyph
- * within a single dimension so that as much of its segments are aligned
- * (more or less) on the grid. To find out the optimal scaling and
- * shifting value, various parameter combinations are tried and scored.
- */
-
-#include "afwarp.h"
-
-#ifdef AF_CONFIG_OPTION_USE_WARPER
-
- /**************************************************************************
- *
- * The macro FT_COMPONENT is used in trace mode. It is an implicit
- * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
- * messages during execution.
- */
-#undef FT_COMPONENT
-#define FT_COMPONENT afwarp
-
-
- /* The weights cover the range 0/64 - 63/64 of a pixel. Obviously, */
- /* values around a half pixel (which means exactly between two grid */
- /* lines) gets the worst weight. */
-#if 1
- static const AF_WarpScore
- af_warper_weights[64] =
- {
- 35, 32, 30, 25, 20, 15, 12, 10, 5, 1, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, -1, -2, -5, -8,-10,-10,-20,-20,-30,-30,
-
- -30,-30,-20,-20,-10,-10, -8, -5, -2, -1, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 1, 5, 10, 12, 15, 20, 25, 30, 32,
- };
-#else
- static const AF_WarpScore
- af_warper_weights[64] =
- {
- 30, 20, 10, 5, 4, 4, 3, 2, 1, 0, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, -1, -2, -2, -5, -5,-10,-10,-15,-20,
-
- -20,-15,-15,-10,-10, -5, -5, -2, -2, -1, 0, 0, 0, 0, 0, 0,
- 0, 0, 0, 0, 0, 0, 0, 0, 1, 2, 3, 4, 4, 5, 10, 20,
- };
-#endif
-
-
- /* Score segments for a given `scale' and `delta' in the range */
- /* `xx1' to `xx2', and store the best result in `warper'. If */
- /* the new best score is equal to the old one, prefer the */
- /* value with a smaller distortion (around `base_distort'). */
-
- static void
- af_warper_compute_line_best( AF_Warper warper,
- FT_Fixed scale,
- FT_Pos delta,
- FT_Pos xx1,
- FT_Pos xx2,
- AF_WarpScore base_distort,
- AF_Segment segments,
- FT_Int num_segments )
- {
- FT_Int idx_min, idx_max, idx0;
- FT_Int nn;
- AF_WarpScore scores[65];
-
-
- for ( nn = 0; nn < 65; nn++ )
- scores[nn] = 0;
-
- idx0 = xx1 - warper->t1;
-
- /* compute minimum and maximum indices */
- {
- FT_Pos xx1min = warper->x1min;
- FT_Pos xx1max = warper->x1max;
- FT_Pos w = xx2 - xx1;
-
-
- if ( xx1min + w < warper->x2min )
- xx1min = warper->x2min - w;
-
- if ( xx1max + w > warper->x2max )
- xx1max = warper->x2max - w;
-
- idx_min = xx1min - warper->t1;
- idx_max = xx1max - warper->t1;
-
- if ( idx_min < 0 || idx_min > idx_max || idx_max > 64 )
- {
- FT_TRACE5(( "invalid indices:\n"
- " min=%d max=%d, xx1=%ld xx2=%ld,\n"
- " x1min=%ld x1max=%ld, x2min=%ld x2max=%ld\n",
- idx_min, idx_max, xx1, xx2,
- warper->x1min, warper->x1max,
- warper->x2min, warper->x2max ));
- return;
- }
- }
-
- for ( nn = 0; nn < num_segments; nn++ )
- {
- FT_Pos len = segments[nn].max_coord - segments[nn].min_coord;
- FT_Pos y0 = FT_MulFix( segments[nn].pos, scale ) + delta;
- FT_Pos y = y0 + ( idx_min - idx0 );
- FT_Int idx;
-
-
- /* score the length of the segments for the given range */
- for ( idx = idx_min; idx <= idx_max; idx++, y++ )
- scores[idx] += af_warper_weights[y & 63] * len;
- }
-
- /* find best score */
- {
- FT_Int idx;
-
-
- for ( idx = idx_min; idx <= idx_max; idx++ )
- {
- AF_WarpScore score = scores[idx];
- AF_WarpScore distort = base_distort + ( idx - idx0 );
-
-
- if ( score > warper->best_score ||
- ( score == warper->best_score &&
- distort < warper->best_distort ) )
- {
- warper->best_score = score;
- warper->best_distort = distort;
- warper->best_scale = scale;
- warper->best_delta = delta + ( idx - idx0 );
- }
- }
- }
- }
-
-
- /* Compute optimal scaling and delta values for a given glyph and */
- /* dimension. */
-
- FT_LOCAL_DEF( void )
- af_warper_compute( AF_Warper warper,
- AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Fixed *a_scale,
- FT_Pos *a_delta )
- {
- AF_AxisHints axis;
- AF_Point points;
-
- FT_Fixed org_scale;
- FT_Pos org_delta;
-
- FT_Int nn, num_points, num_segments;
- FT_Int X1, X2;
- FT_Int w;
-
- AF_WarpScore base_distort;
- AF_Segment segments;
-
-
- /* get original scaling transformation */
- if ( dim == AF_DIMENSION_VERT )
- {
- org_scale = hints->y_scale;
- org_delta = hints->y_delta;
- }
- else
- {
- org_scale = hints->x_scale;
- org_delta = hints->x_delta;
- }
-
- warper->best_scale = org_scale;
- warper->best_delta = org_delta;
- warper->best_score = FT_INT_MIN;
- warper->best_distort = 0;
-
- axis = &hints->axis[dim];
- segments = axis->segments;
- num_segments = axis->num_segments;
- points = hints->points;
- num_points = hints->num_points;
-
- *a_scale = org_scale;
- *a_delta = org_delta;
-
- /* get X1 and X2, minimum and maximum in original coordinates */
- if ( num_segments < 1 )
- return;
-
-#if 1
- X1 = X2 = points[0].fx;
- for ( nn = 1; nn < num_points; nn++ )
- {
- FT_Int X = points[nn].fx;
-
-
- if ( X < X1 )
- X1 = X;
- if ( X > X2 )
- X2 = X;
- }
-#else
- X1 = X2 = segments[0].pos;
- for ( nn = 1; nn < num_segments; nn++ )
- {
- FT_Int X = segments[nn].pos;
-
-
- if ( X < X1 )
- X1 = X;
- if ( X > X2 )
- X2 = X;
- }
-#endif
-
- if ( X1 >= X2 )
- return;
-
- warper->x1 = FT_MulFix( X1, org_scale ) + org_delta;
- warper->x2 = FT_MulFix( X2, org_scale ) + org_delta;
-
- warper->t1 = AF_WARPER_FLOOR( warper->x1 );
- warper->t2 = AF_WARPER_CEIL( warper->x2 );
-
- /* examine a half pixel wide range around the maximum coordinates */
- warper->x1min = warper->x1 & ~31;
- warper->x1max = warper->x1min + 32;
- warper->x2min = warper->x2 & ~31;
- warper->x2max = warper->x2min + 32;
-
- if ( warper->x1max > warper->x2 )
- warper->x1max = warper->x2;
-
- if ( warper->x2min < warper->x1 )
- warper->x2min = warper->x1;
-
- warper->w0 = warper->x2 - warper->x1;
-
- if ( warper->w0 <= 64 )
- {
- warper->x1max = warper->x1;
- warper->x2min = warper->x2;
- }
-
- /* examine (at most) a pixel wide range around the natural width */
- warper->wmin = warper->x2min - warper->x1max;
- warper->wmax = warper->x2max - warper->x1min;
-
-#if 1
- /* some heuristics to reduce the number of widths to be examined */
- {
- int margin = 16;
-
-
- if ( warper->w0 <= 128 )
- {
- margin = 8;
- if ( warper->w0 <= 96 )
- margin = 4;
- }
-
- if ( warper->wmin < warper->w0 - margin )
- warper->wmin = warper->w0 - margin;
-
- if ( warper->wmax > warper->w0 + margin )
- warper->wmax = warper->w0 + margin;
- }
-
- if ( warper->wmin < warper->w0 * 3 / 4 )
- warper->wmin = warper->w0 * 3 / 4;
-
- if ( warper->wmax > warper->w0 * 5 / 4 )
- warper->wmax = warper->w0 * 5 / 4;
-#else
- /* no scaling, just translation */
- warper->wmin = warper->wmax = warper->w0;
-#endif
-
- for ( w = warper->wmin; w <= warper->wmax; w++ )
- {
- FT_Fixed new_scale;
- FT_Pos new_delta;
- FT_Pos xx1, xx2;
-
-
- /* compute min and max positions for given width, */
- /* assuring that they stay within the coordinate ranges */
- xx1 = warper->x1;
- xx2 = warper->x2;
- if ( w >= warper->w0 )
- {
- xx1 -= w - warper->w0;
- if ( xx1 < warper->x1min )
- {
- xx2 += warper->x1min - xx1;
- xx1 = warper->x1min;
- }
- }
- else
- {
- xx1 -= w - warper->w0;
- if ( xx1 > warper->x1max )
- {
- xx2 -= xx1 - warper->x1max;
- xx1 = warper->x1max;
- }
- }
-
- if ( xx1 < warper->x1 )
- base_distort = warper->x1 - xx1;
- else
- base_distort = xx1 - warper->x1;
-
- if ( xx2 < warper->x2 )
- base_distort += warper->x2 - xx2;
- else
- base_distort += xx2 - warper->x2;
-
- /* give base distortion a greater weight while scoring */
- base_distort *= 10;
-
- new_scale = org_scale + FT_DivFix( w - warper->w0, X2 - X1 );
- new_delta = xx1 - FT_MulFix( X1, new_scale );
-
- af_warper_compute_line_best( warper, new_scale, new_delta, xx1, xx2,
- base_distort,
- segments, num_segments );
- }
-
- {
- FT_Fixed best_scale = warper->best_scale;
- FT_Pos best_delta = warper->best_delta;
-
-
- hints->xmin_delta = FT_MulFix( X1, best_scale - org_scale )
- + best_delta;
- hints->xmax_delta = FT_MulFix( X2, best_scale - org_scale )
- + best_delta;
-
- *a_scale = best_scale;
- *a_delta = best_delta;
- }
- }
-
-#else /* !AF_CONFIG_OPTION_USE_WARPER */
-
- /* ANSI C doesn't like empty source files */
- typedef int _af_warp_dummy;
-
-#endif /* !AF_CONFIG_OPTION_USE_WARPER */
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afwarp.h b/thirdparty/freetype/src/autofit/afwarp.h
deleted file mode 100644
index cdea23e7de..0000000000
--- a/thirdparty/freetype/src/autofit/afwarp.h
+++ /dev/null
@@ -1,66 +0,0 @@
-/****************************************************************************
- *
- * afwarp.h
- *
- * Auto-fitter warping algorithm (specification).
- *
- * Copyright (C) 2006-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#ifndef AFWARP_H_
-#define AFWARP_H_
-
-#include "afhints.h"
-
-FT_BEGIN_HEADER
-
-#define AF_WARPER_SCALE
-
-#define AF_WARPER_FLOOR( x ) ( (x) & ~FT_TYPEOF( x )63 )
-#define AF_WARPER_CEIL( x ) AF_WARPER_FLOOR( (x) + 63 )
-
-
- typedef FT_Int32 AF_WarpScore;
-
- typedef struct AF_WarperRec_
- {
- FT_Pos x1, x2;
- FT_Pos t1, t2;
- FT_Pos x1min, x1max;
- FT_Pos x2min, x2max;
- FT_Pos w0, wmin, wmax;
-
- FT_Fixed best_scale;
- FT_Pos best_delta;
- AF_WarpScore best_score;
- AF_WarpScore best_distort;
-
- } AF_WarperRec, *AF_Warper;
-
-
-#ifdef AF_CONFIG_OPTION_USE_WARPER
- FT_LOCAL( void )
- af_warper_compute( AF_Warper warper,
- AF_GlyphHints hints,
- AF_Dimension dim,
- FT_Fixed *a_scale,
- FT_Pos *a_delta );
-#endif
-
-
-FT_END_HEADER
-
-
-#endif /* AFWARP_H_ */
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afwrtsys.h b/thirdparty/freetype/src/autofit/afwrtsys.h
deleted file mode 100644
index 3990633d2d..0000000000
--- a/thirdparty/freetype/src/autofit/afwrtsys.h
+++ /dev/null
@@ -1,52 +0,0 @@
-/****************************************************************************
- *
- * afwrtsys.h
- *
- * Auto-fitter writing systems (specification only).
- *
- * Copyright (C) 2013-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
- *
- * This file is part of the FreeType project, and may only be used,
- * modified, and distributed under the terms of the FreeType project
- * license, LICENSE.TXT. By continuing to use, modify, or distribute
- * this file you indicate that you have read the license and
- * understand and accept it fully.
- *
- */
-
-
-#ifndef AFWRTSYS_H_
-#define AFWRTSYS_H_
-
- /* Since preprocessor directives can't create other preprocessor */
- /* directives, we have to include the header files manually. */
-
-#include "afdummy.h"
-#include "aflatin.h"
-#include "afcjk.h"
-#include "afindic.h"
-#ifdef FT_OPTION_AUTOFIT2
-#include "aflatin2.h"
-#endif
-
-#endif /* AFWRTSYS_H_ */
-
-
- /* The following part can be included multiple times. */
- /* Define `WRITING_SYSTEM' as needed. */
-
-
- /* Add new writing systems here. The arguments are the writing system */
- /* name in lowercase and uppercase, respectively. */
-
- WRITING_SYSTEM( dummy, DUMMY )
- WRITING_SYSTEM( latin, LATIN )
- WRITING_SYSTEM( cjk, CJK )
- WRITING_SYSTEM( indic, INDIC )
-#ifdef FT_OPTION_AUTOFIT2
- WRITING_SYSTEM( latin2, LATIN2 )
-#endif
-
-
-/* END */
diff --git a/thirdparty/freetype/src/autofit/afws-decl.h b/thirdparty/freetype/src/autofit/afws-decl.h
new file mode 100644
index 0000000000..c10dd57e7b
--- /dev/null
+++ b/thirdparty/freetype/src/autofit/afws-decl.h
@@ -0,0 +1,33 @@
+/****************************************************************************
+ *
+ * afws-decl.h
+ *
+ * Auto-fitter writing system declarations (specification only).
+ *
+ * Copyright (C) 2013-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef AFWS_DECL_H_
+#define AFWS_DECL_H_
+
+ /* Since preprocessor directives can't create other preprocessor */
+ /* directives, we have to include the header files manually. */
+
+#include "afdummy.h"
+#include "aflatin.h"
+#include "afcjk.h"
+#include "afindic.h"
+
+#endif /* AFWS_DECL_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/autofit/afws-iter.h b/thirdparty/freetype/src/autofit/afws-iter.h
new file mode 100644
index 0000000000..55714203e3
--- /dev/null
+++ b/thirdparty/freetype/src/autofit/afws-iter.h
@@ -0,0 +1,31 @@
+/****************************************************************************
+ *
+ * afws-iter.h
+ *
+ * Auto-fitter writing systems iterator (specification only).
+ *
+ * Copyright (C) 2013-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+ /* This header may be included multiple times. */
+ /* Define `WRITING_SYSTEM' as needed. */
+
+
+ /* Add new writing systems here. The arguments are the writing system */
+ /* name in lowercase and uppercase, respectively. */
+
+ WRITING_SYSTEM( dummy, DUMMY )
+ WRITING_SYSTEM( latin, LATIN )
+ WRITING_SYSTEM( cjk, CJK )
+ WRITING_SYSTEM( indic, INDIC )
+
+
+/* END */
diff --git a/thirdparty/freetype/src/autofit/autofit.c b/thirdparty/freetype/src/autofit/autofit.c
index ef5e7f1452..7e692b4de9 100644
--- a/thirdparty/freetype/src/autofit/autofit.c
+++ b/thirdparty/freetype/src/autofit/autofit.c
@@ -4,7 +4,7 @@
*
* Auto-fitter module (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -18,7 +18,6 @@
#define FT_MAKE_OPTION_SINGLE_OBJECT
-#include "afangles.c"
#include "afblue.c"
#include "afcjk.c"
#include "afdummy.c"
@@ -26,12 +25,10 @@
#include "afhints.c"
#include "afindic.c"
#include "aflatin.c"
-#include "aflatin2.c"
#include "afloader.c"
#include "afmodule.c"
#include "afranges.c"
#include "afshaper.c"
-#include "afwarp.c"
/* END */
diff --git a/thirdparty/freetype/src/autofit/module.mk b/thirdparty/freetype/src/autofit/module.mk
deleted file mode 100644
index c32781f478..0000000000
--- a/thirdparty/freetype/src/autofit/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 auto-fitter module definition
-#
-
-
-# Copyright (C) 2003-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += AUTOFIT_MODULE
-
-define AUTOFIT_MODULE
-$(OPEN_DRIVER) FT_Module_Class, autofit_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)autofit $(ECHO_DRIVER_DESC)automatic hinting module$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/autofit/rules.mk b/thirdparty/freetype/src/autofit/rules.mk
deleted file mode 100644
index 553ddce6b7..0000000000
--- a/thirdparty/freetype/src/autofit/rules.mk
+++ /dev/null
@@ -1,88 +0,0 @@
-#
-# FreeType 2 auto-fitter module configuration rules
-#
-
-
-# Copyright (C) 2003-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# AUTOF driver directory
-#
-AUTOF_DIR := $(SRC_DIR)/autofit
-
-
-# compilation flags for the driver
-#
-AUTOF_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(AUTOF_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# AUTOF driver sources (i.e., C files)
-#
-AUTOF_DRV_SRC := $(AUTOF_DIR)/afangles.c \
- $(AUTOF_DIR)/afblue.c \
- $(AUTOF_DIR)/afcjk.c \
- $(AUTOF_DIR)/afdummy.c \
- $(AUTOF_DIR)/afglobal.c \
- $(AUTOF_DIR)/afhints.c \
- $(AUTOF_DIR)/afindic.c \
- $(AUTOF_DIR)/aflatin.c \
- $(AUTOF_DIR)/afloader.c \
- $(AUTOF_DIR)/afmodule.c \
- $(AUTOF_DIR)/afranges.c \
- $(AUTOF_DIR)/afshaper.c \
- $(AUTOF_DIR)/afwarp.c
-
-# AUTOF driver headers
-#
-AUTOF_DRV_H := $(AUTOF_DRV_SRC:%c=%h) \
- $(AUTOF_DIR)/afcover.h \
- $(AUTOF_DIR)/aferrors.h \
- $(AUTOF_DIR)/afscript.h \
- $(AUTOF_DIR)/afstyles.h \
- $(AUTOF_DIR)/aftypes.h \
- $(AUTOF_DIR)/afwrtsys.h
-
-
-# AUTOF driver object(s)
-#
-# AUTOF_DRV_OBJ_M is used during `multi' builds.
-# AUTOF_DRV_OBJ_S is used during `single' builds.
-#
-AUTOF_DRV_OBJ_M := $(AUTOF_DRV_SRC:$(AUTOF_DIR)/%.c=$(OBJ_DIR)/%.$O)
-AUTOF_DRV_OBJ_S := $(OBJ_DIR)/autofit.$O
-
-# AUTOF driver source file for single build
-#
-AUTOF_DRV_SRC_S := $(AUTOF_DIR)/autofit.c
-
-
-# AUTOF driver - single object
-#
-$(AUTOF_DRV_OBJ_S): $(AUTOF_DRV_SRC_S) $(AUTOF_DRV_SRC) \
- $(FREETYPE_H) $(AUTOF_DRV_H)
- $(AUTOF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(AUTOF_DRV_SRC_S))
-
-
-# AUTOF driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(AUTOF_DIR)/%.c $(FREETYPE_H) $(AUTOF_DRV_H)
- $(AUTOF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(AUTOF_DRV_OBJ_S)
-DRV_OBJS_M += $(AUTOF_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/base/ftadvanc.c b/thirdparty/freetype/src/base/ftadvanc.c
index c689e6a15b..f20b9928aa 100644
--- a/thirdparty/freetype/src/base/ftadvanc.c
+++ b/thirdparty/freetype/src/base/ftadvanc.c
@@ -4,7 +4,7 @@
*
* Quick computation of advance widths (body).
*
- * Copyright (C) 2008-2020 by
+ * Copyright (C) 2008-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftbase.c b/thirdparty/freetype/src/base/ftbase.c
index bfbaffd64e..7366bc46db 100644
--- a/thirdparty/freetype/src/base/ftbase.c
+++ b/thirdparty/freetype/src/base/ftbase.c
@@ -4,7 +4,7 @@
*
* Single object library component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftbase.h b/thirdparty/freetype/src/base/ftbase.h
index 25afa9bc31..963ff93d68 100644
--- a/thirdparty/freetype/src/base/ftbase.h
+++ b/thirdparty/freetype/src/base/ftbase.h
@@ -4,7 +4,7 @@
*
* Private functions used in the `base' module (specification).
*
- * Copyright (C) 2008-2020 by
+ * Copyright (C) 2008-2021 by
* David Turner, Robert Wilhelm, Werner Lemberg, and suzuki toshiya.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftbbox.c b/thirdparty/freetype/src/base/ftbbox.c
index 30a4eba0b3..4db29cbf83 100644
--- a/thirdparty/freetype/src/base/ftbbox.c
+++ b/thirdparty/freetype/src/base/ftbbox.c
@@ -4,7 +4,7 @@
*
* FreeType bbox computation (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
diff --git a/thirdparty/freetype/src/base/ftbdf.c b/thirdparty/freetype/src/base/ftbdf.c
index fc374c6675..f93ca8eb75 100644
--- a/thirdparty/freetype/src/base/ftbdf.c
+++ b/thirdparty/freetype/src/base/ftbdf.c
@@ -4,7 +4,7 @@
*
* FreeType API for accessing BDF-specific strings (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftbitmap.c b/thirdparty/freetype/src/base/ftbitmap.c
index 584213ddcf..2146d3e364 100644
--- a/thirdparty/freetype/src/base/ftbitmap.c
+++ b/thirdparty/freetype/src/base/ftbitmap.c
@@ -4,7 +4,7 @@
*
* FreeType utility functions for bitmaps (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -112,10 +112,10 @@
target_size = (FT_ULong)target_pitch * target->rows;
if ( target_size != size )
- (void)FT_QREALLOC( target->buffer, target_size, size );
+ FT_MEM_QREALLOC( target->buffer, target_size, size );
}
else
- (void)FT_QALLOC( target->buffer, size );
+ FT_MEM_QALLOC( target->buffer, size );
if ( !error )
{
@@ -907,8 +907,8 @@
final_rows = ( final_ury - final_lly ) >> 6;
#ifdef FT_DEBUG_LEVEL_TRACE
- FT_TRACE5(( "FT_Bitmap_Blend:\n"
- " source bitmap: (%ld, %ld) -- (%ld, %ld); %d x %d\n",
+ FT_TRACE5(( "FT_Bitmap_Blend:\n" ));
+ FT_TRACE5(( " source bitmap: (%ld, %ld) -- (%ld, %ld); %d x %d\n",
source_llx / 64, source_lly / 64,
source_urx / 64, source_ury / 64,
source_->width, source_->rows ));
diff --git a/thirdparty/freetype/src/base/ftcalc.c b/thirdparty/freetype/src/base/ftcalc.c
index b5258c85a1..9df8e4010d 100644
--- a/thirdparty/freetype/src/base/ftcalc.c
+++ b/thirdparty/freetype/src/base/ftcalc.c
@@ -4,7 +4,7 @@
*
* Arithmetic computations (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -45,7 +45,7 @@
/* we need to emulate a 64-bit data type if a real one isn't available */
-#ifndef FT_LONG64
+#ifndef FT_INT64
typedef struct FT_Int64_
{
@@ -54,7 +54,7 @@
} FT_Int64;
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
/**************************************************************************
@@ -79,7 +79,7 @@
FT_END_STMNT
/* The following three functions are available regardless of whether */
- /* FT_LONG64 is defined. */
+ /* FT_INT64 is defined. */
/* documentation is in freetype.h */
@@ -109,7 +109,7 @@
#ifndef FT_MSB
- FT_BASE_DEF ( FT_Int )
+ FT_BASE_DEF( FT_Int )
FT_MSB( FT_UInt32 z )
{
FT_Int shift = 0;
@@ -164,7 +164,7 @@
}
-#ifdef FT_LONG64
+#ifdef FT_INT64
/* documentation is in freetype.h */
@@ -272,7 +272,7 @@
}
-#else /* !FT_LONG64 */
+#else /* !FT_INT64 */
static void
@@ -651,7 +651,7 @@
}
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
/* documentation is in ftglyph.h */
@@ -985,7 +985,7 @@
/* we silently ignore overflow errors since such large values */
/* lead to even more (harmless) rendering errors later on */
-#ifdef FT_LONG64
+#ifdef FT_INT64
FT_Int64 delta = SUB_INT64( MUL_INT64( in_x, out_y ),
MUL_INT64( in_y, out_x ) );
diff --git a/thirdparty/freetype/src/base/ftcid.c b/thirdparty/freetype/src/base/ftcid.c
index ce8a876adc..216ee2b3e4 100644
--- a/thirdparty/freetype/src/base/ftcid.c
+++ b/thirdparty/freetype/src/base/ftcid.c
@@ -4,7 +4,7 @@
*
* FreeType API for accessing CID font information.
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* Derek Clegg and Michael Toftdal.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftcolor.c b/thirdparty/freetype/src/base/ftcolor.c
index a50d680096..3ef3256b20 100644
--- a/thirdparty/freetype/src/base/ftcolor.c
+++ b/thirdparty/freetype/src/base/ftcolor.c
@@ -4,7 +4,7 @@
*
* FreeType's glyph color management (body).
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftdbgmem.c b/thirdparty/freetype/src/base/ftdbgmem.c
index eb0d651607..4f5c1e7697 100644
--- a/thirdparty/freetype/src/base/ftdbgmem.c
+++ b/thirdparty/freetype/src/base/ftdbgmem.c
@@ -4,7 +4,7 @@
*
* Memory debugger (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -302,46 +302,6 @@
}
- static FT_MemTable
- ft_mem_table_new( FT_Memory memory )
- {
- FT_MemTable table;
-
-
- table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) );
- if ( !table )
- goto Exit;
-
- FT_ZERO( table );
-
- table->size = FT_MEM_SIZE_MIN;
- table->nodes = 0;
-
- table->memory = memory;
-
- table->memory_user = memory->user;
-
- table->alloc = memory->alloc;
- table->realloc = memory->realloc;
- table->free = memory->free;
-
- table->buckets = (FT_MemNode *)
- memory->alloc(
- memory,
- table->size * (FT_Long)sizeof ( FT_MemNode ) );
- if ( table->buckets )
- FT_ARRAY_ZERO( table->buckets, table->size );
- else
- {
- memory->free( memory, table );
- table = NULL;
- }
-
- Exit:
- return table;
- }
-
-
static void
ft_mem_table_destroy( FT_MemTable table )
{
@@ -350,8 +310,6 @@
FT_Long leaks = 0;
- FT_DumpMemory( table->memory );
-
/* remove all blocks from the table, revealing leaked ones */
for ( i = 0; i < table->size; i++ )
{
@@ -413,8 +371,6 @@
printf( "FreeType: maximum memory footprint = %ld\n",
table->alloc_max );
- ft_mem_table_free( table, table );
-
if ( leak_count > 0 )
ft_mem_debug_panic(
"FreeType: %ld bytes of memory leaked in %ld blocks\n",
@@ -821,17 +777,30 @@
}
- extern FT_Int
+ extern void
ft_mem_debug_init( FT_Memory memory )
{
FT_MemTable table;
- FT_Int result = 0;
- if ( ft_getenv( "FT2_DEBUG_MEMORY" ) )
+ if ( !ft_getenv( "FT2_DEBUG_MEMORY" ) )
+ return;
+
+ table = (FT_MemTable)memory->alloc( memory, sizeof ( *table ) );
+
+ if ( table )
{
- table = ft_mem_table_new( memory );
- if ( table )
+ FT_ZERO( table );
+
+ table->memory = memory;
+ table->memory_user = memory->user;
+ table->alloc = memory->alloc;
+ table->realloc = memory->realloc;
+ table->free = memory->free;
+
+ ft_mem_table_resize( table );
+
+ if ( table->size )
{
const char* p;
@@ -876,28 +845,31 @@
if ( keep_alive > 0 )
table->keep_alive = 1;
}
-
- result = 1;
}
+ else
+ memory->free( memory, table );
}
- return result;
}
extern void
ft_mem_debug_done( FT_Memory memory )
{
- FT_MemTable table = (FT_MemTable)memory->user;
+ if ( memory->free == ft_mem_debug_free )
+ {
+ FT_MemTable table = (FT_MemTable)memory->user;
- if ( table )
- {
+ FT_DumpMemory( memory );
+
+ ft_mem_table_destroy( table );
+
memory->free = table->free;
memory->realloc = table->realloc;
memory->alloc = table->alloc;
+ memory->user = table->memory_user;
- ft_mem_table_destroy( table );
- memory->user = NULL;
+ memory->free( memory, table );
}
}
@@ -922,11 +894,9 @@
extern void
FT_DumpMemory( FT_Memory memory )
{
- FT_MemTable table = (FT_MemTable)memory->user;
-
-
- if ( table )
+ if ( memory->free == ft_mem_debug_free )
{
+ FT_MemTable table = (FT_MemTable)memory->user;
FT_MemSource* bucket = table->sources;
FT_MemSource* limit = bucket + FT_MEM_SOURCE_BUCKETS;
FT_MemSource* sources;
diff --git a/thirdparty/freetype/src/base/ftdebug.c b/thirdparty/freetype/src/base/ftdebug.c
index 62cf680b01..3485791306 100644
--- a/thirdparty/freetype/src/base/ftdebug.c
+++ b/thirdparty/freetype/src/base/ftdebug.c
@@ -4,7 +4,7 @@
*
* Debugging and logging component (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -42,7 +42,53 @@
#include <freetype/freetype.h>
+#include <freetype/ftlogging.h>
#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftobjs.h>
+
+
+#ifdef FT_DEBUG_LOGGING
+
+ /**************************************************************************
+ *
+ * Variables used to control logging.
+ *
+ * 1. `ft_default_trace_level` stores the value of trace levels, which are
+ * provided to FreeType using the `FT2_DEBUG` environment variable.
+ *
+ * 2. `ft_fileptr` stores the `FILE*` handle.
+ *
+ * 3. `ft_component` is a string that holds the name of `FT_COMPONENT`.
+ *
+ * 4. The flag `ft_component_flag` prints the name of `FT_COMPONENT` along
+ * with the actual log message if set to true.
+ *
+ * 5. The flag `ft_timestamp_flag` prints time along with the actual log
+ * message if set to ture.
+ *
+ * 6. `ft_have_newline_char` is used to differentiate between a log
+ * message with and without a trailing newline character.
+ *
+ * 7. `ft_custom_trace_level` stores the custom trace level value, which
+ * is provided by the user at run-time.
+ *
+ * We use `static` to avoid 'unused variable' warnings.
+ *
+ */
+ static const char* ft_default_trace_level = NULL;
+ static FILE* ft_fileptr = NULL;
+ static const char* ft_component = NULL;
+ static FT_Bool ft_component_flag = FALSE;
+ static FT_Bool ft_timestamp_flag = FALSE;
+ static FT_Bool ft_have_newline_char = TRUE;
+ static const char* ft_custom_trace_level = NULL;
+
+ /* declared in ftdebug.h */
+
+ dlg_handler ft_default_log_handler = NULL;
+ FT_Custom_Log_Handler custom_output_handler = NULL;
+
+#endif /* FT_DEBUG_LOGGING */
#ifdef FT_DEBUG_LEVEL_ERROR
@@ -106,7 +152,6 @@
#endif /* FT_DEBUG_LEVEL_ERROR */
-
#ifdef FT_DEBUG_LEVEL_TRACE
/* array of trace levels, initialized to 0; */
@@ -195,8 +240,17 @@
FT_BASE_DEF( void )
ft_debug_init( void )
{
- const char* ft2_debug = ft_getenv( "FT2_DEBUG" );
+ const char* ft2_debug = NULL;
+
+#ifdef FT_DEBUG_LOGGING
+ if ( ft_custom_trace_level != NULL )
+ ft2_debug = ft_custom_trace_level;
+ else
+ ft2_debug = ft_default_trace_level;
+#else
+ ft2_debug = ft_getenv( "FT2_DEBUG" );
+#endif
if ( ft2_debug )
{
@@ -210,6 +264,49 @@
if ( *p == ' ' || *p == '\t' || *p == ',' || *p == ';' || *p == '=' )
continue;
+#ifdef FT_DEBUG_LOGGING
+
+ /* check extra arguments for logging */
+ if ( *p == '-' )
+ {
+ const char* r = ++p;
+
+
+ if ( *r == 'v' )
+ {
+ const char* s = ++r;
+
+
+ ft_component_flag = TRUE;
+
+ if ( *s == 't' )
+ {
+ ft_timestamp_flag = TRUE;
+ p++;
+ }
+
+ p++;
+ }
+
+ else if ( *r == 't' )
+ {
+ const char* s = ++r;
+
+
+ ft_timestamp_flag = TRUE;
+
+ if ( *s == 'v' )
+ {
+ ft_component_flag = TRUE;
+ p++;
+ }
+
+ p++;
+ }
+ }
+
+#endif /* FT_DEBUG_LOGGING */
+
/* read toggle name, followed by ':' */
q = p;
while ( *p && *p != ':' )
@@ -311,8 +408,237 @@
/* nothing */
}
-
#endif /* !FT_DEBUG_LEVEL_TRACE */
+#ifdef FT_DEBUG_LOGGING
+
+ /**************************************************************************
+ *
+ * Initialize and de-initialize 'dlg' library.
+ *
+ */
+
+ FT_BASE_DEF( void )
+ ft_logging_init( void )
+ {
+ ft_default_log_handler = ft_log_handler;
+ ft_default_trace_level = ft_getenv( "FT2_DEBUG" );
+
+ if ( ft_getenv( "FT_LOGGING_FILE" ) )
+ ft_fileptr = ft_fopen( ft_getenv( "FT_LOGGING_FILE" ), "w" );
+ else
+ ft_fileptr = stderr;
+
+ ft_debug_init();
+
+ /* Set the default output handler for 'dlg'. */
+ dlg_set_handler( ft_default_log_handler, NULL );
+ }
+
+
+ FT_BASE_DEF( void )
+ ft_logging_deinit( void )
+ {
+ if ( ft_fileptr != stderr )
+ ft_fclose( ft_fileptr );
+ }
+
+
+ /**************************************************************************
+ *
+ * An output log handler for FreeType.
+ *
+ */
+ FT_BASE_DEF( void )
+ ft_log_handler( const struct dlg_origin* origin,
+ const char* string,
+ void* data )
+ {
+ char features_buf[128];
+ char* bufp = features_buf;
+
+ FT_UNUSED( data );
+
+
+ if ( ft_have_newline_char )
+ {
+ const char* features = NULL;
+ size_t features_length = 0;
+
+
+#define FEATURES_TIMESTAMP "[%h:%m] "
+#define FEATURES_COMPONENT "[%t] "
+#define FEATURES_TIMESTAMP_COMPONENT "[%h:%m %t] "
+
+ if ( ft_timestamp_flag && ft_component_flag )
+ {
+ features = FEATURES_TIMESTAMP_COMPONENT;
+ features_length = sizeof ( FEATURES_TIMESTAMP_COMPONENT );
+ }
+ else if ( ft_timestamp_flag )
+ {
+ features = FEATURES_TIMESTAMP;
+ features_length = sizeof ( FEATURES_TIMESTAMP );
+ }
+ else if ( ft_component_flag )
+ {
+ features = FEATURES_COMPONENT;
+ features_length = sizeof ( FEATURES_COMPONENT );
+ }
+
+ if ( ft_component_flag || ft_timestamp_flag )
+ {
+ ft_strncpy( features_buf, features, features_length );
+ bufp += features_length - 1;
+ }
+
+ if ( ft_component_flag )
+ {
+ size_t tag_length = ft_strlen( *origin->tags );
+ size_t i;
+
+
+ /* To vertically align tracing messages we compensate the */
+ /* different FT_COMPONENT string lengths by inserting an */
+ /* appropriate amount of space characters. */
+ for ( i = 0;
+ i < FT_MAX_TRACE_LEVEL_LENGTH - tag_length;
+ i++ )
+ *bufp++ = ' ';
+ }
+ }
+
+ /* Finally add the format string for the tracing message. */
+ *bufp++ = '%';
+ *bufp++ = 'c';
+ *bufp = '\0';
+
+ dlg_generic_outputf_stream( ft_fileptr,
+ (const char*)features_buf,
+ origin,
+ string,
+ dlg_default_output_styles,
+ true );
+
+ if ( ft_strrchr( string, '\n' ) )
+ ft_have_newline_char = TRUE;
+ else
+ ft_have_newline_char = FALSE;
+ }
+
+
+ /* documentation is in ftdebug.h */
+ FT_BASE_DEF( void )
+ ft_add_tag( const char* tag )
+ {
+ ft_component = tag;
+
+ dlg_add_tag( tag, NULL );
+ }
+
+
+ /* documentation is in ftdebug.h */
+ FT_BASE_DEF( void )
+ ft_remove_tag( const char* tag )
+ {
+ dlg_remove_tag( tag, NULL );
+ }
+
+
+ /* documentation is in ftlogging.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Trace_Set_Level( const char* level )
+ {
+ ft_component_flag = FALSE;
+ ft_timestamp_flag = FALSE;
+ ft_custom_trace_level = level;
+
+ ft_debug_init();
+ }
+
+
+ /* documentation is in ftlogging.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Trace_Set_Default_Level( void )
+ {
+ ft_component_flag = FALSE;
+ ft_timestamp_flag = FALSE;
+ ft_custom_trace_level = NULL;
+
+ ft_debug_init();
+ }
+
+
+ /**************************************************************************
+ *
+ * Functions to handle a custom log handler.
+ *
+ */
+
+ /* documentation is in ftlogging.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Set_Log_Handler( FT_Custom_Log_Handler handler )
+ {
+ custom_output_handler = handler;
+ }
+
+
+ /* documentation is in ftlogging.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Set_Default_Log_Handler( void )
+ {
+ custom_output_handler = NULL;
+ }
+
+
+ /* documentation is in ftdebug.h */
+ FT_BASE_DEF( void )
+ FT_Logging_Callback( const char* fmt,
+ ... )
+ {
+ va_list ap;
+
+
+ va_start( ap, fmt );
+ custom_output_handler( ft_component, fmt, ap );
+ va_end( ap );
+ }
+
+#else /* !FT_DEBUG_LOGGING */
+
+ FT_EXPORT_DEF( void )
+ FT_Trace_Set_Level( const char* level )
+ {
+ FT_UNUSED( level );
+ }
+
+
+ FT_EXPORT_DEF( void )
+ FT_Trace_Set_Default_Level( void )
+ {
+ /* nothing */
+ }
+
+
+ FT_EXPORT_DEF( void )
+ FT_Set_Log_Handler( FT_Custom_Log_Handler handler )
+ {
+ FT_UNUSED( handler );
+ }
+
+
+ FT_EXPORT_DEF( void )
+ FT_Set_Default_Log_Handler( void )
+ {
+ /* nothing */
+ }
+
+#endif /* !FT_DEBUG_LOGGING */
+
+
/* END */
diff --git a/thirdparty/freetype/src/base/fterrors.c b/thirdparty/freetype/src/base/fterrors.c
index eba9e76563..14649268f8 100644
--- a/thirdparty/freetype/src/base/fterrors.c
+++ b/thirdparty/freetype/src/base/fterrors.c
@@ -4,7 +4,7 @@
*
* FreeType API for error code handling.
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* Armin Hasitzka, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftfntfmt.c b/thirdparty/freetype/src/base/ftfntfmt.c
index a45317e797..4e1b830190 100644
--- a/thirdparty/freetype/src/base/ftfntfmt.c
+++ b/thirdparty/freetype/src/base/ftfntfmt.c
@@ -4,7 +4,7 @@
*
* FreeType utility file for font formats (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftfstype.c b/thirdparty/freetype/src/base/ftfstype.c
index bca548fc56..57e904d6f4 100644
--- a/thirdparty/freetype/src/base/ftfstype.c
+++ b/thirdparty/freetype/src/base/ftfstype.c
@@ -4,7 +4,7 @@
*
* FreeType utility file to access FSType data (body).
*
- * Copyright (C) 2008-2020 by
+ * Copyright (C) 2008-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftgasp.c b/thirdparty/freetype/src/base/ftgasp.c
index eed05a3265..b744f0a465 100644
--- a/thirdparty/freetype/src/base/ftgasp.c
+++ b/thirdparty/freetype/src/base/ftgasp.c
@@ -4,7 +4,7 @@
*
* Access of TrueType's `gasp' table (body).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftgloadr.c b/thirdparty/freetype/src/base/ftgloadr.c
index 05fc7692bb..83ce0660ae 100644
--- a/thirdparty/freetype/src/base/ftgloadr.c
+++ b/thirdparty/freetype/src/base/ftgloadr.c
@@ -4,7 +4,7 @@
*
* The FreeType glyph loader (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftglyph.c b/thirdparty/freetype/src/base/ftglyph.c
index 825eba2c4d..e2c6f73f80 100644
--- a/thirdparty/freetype/src/base/ftglyph.c
+++ b/thirdparty/freetype/src/base/ftglyph.c
@@ -4,7 +4,7 @@
*
* FreeType convenience functions to handle glyphs (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -453,9 +453,9 @@
/* documentation is in ftglyph.h */
FT_EXPORT_DEF( FT_Error )
- FT_Glyph_Transform( FT_Glyph glyph,
- FT_Matrix* matrix,
- FT_Vector* delta )
+ FT_Glyph_Transform( FT_Glyph glyph,
+ const FT_Matrix* matrix,
+ const FT_Vector* delta )
{
FT_Error error = FT_Err_Ok;
@@ -533,10 +533,10 @@
/* documentation is in ftglyph.h */
FT_EXPORT_DEF( FT_Error )
- FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
- FT_Render_Mode render_mode,
- FT_Vector* origin,
- FT_Bool destroy )
+ FT_Glyph_To_Bitmap( FT_Glyph* the_glyph,
+ FT_Render_Mode render_mode,
+ const FT_Vector* origin,
+ FT_Bool destroy )
{
FT_GlyphSlotRec dummy;
FT_GlyphSlot_InternalRec dummy_internal;
@@ -585,7 +585,7 @@
#if 1
/* if `origin' is set, translate the glyph image */
if ( origin )
- FT_Glyph_Transform( glyph, 0, origin );
+ FT_Glyph_Transform( glyph, NULL, origin );
#else
FT_UNUSED( origin );
#endif
@@ -603,7 +603,7 @@
v.x = -origin->x;
v.y = -origin->y;
- FT_Glyph_Transform( glyph, 0, &v );
+ FT_Glyph_Transform( glyph, NULL, &v );
}
#endif
diff --git a/thirdparty/freetype/src/base/ftgxval.c b/thirdparty/freetype/src/base/ftgxval.c
index f04df14526..e9567f77f3 100644
--- a/thirdparty/freetype/src/base/ftgxval.c
+++ b/thirdparty/freetype/src/base/ftgxval.c
@@ -4,7 +4,7 @@
*
* FreeType API for validating TrueTypeGX/AAT tables (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO, Redhat K.K,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/base/ftinit.c b/thirdparty/freetype/src/base/ftinit.c
index 0acc75e460..a2d2b933c0 100644
--- a/thirdparty/freetype/src/base/ftinit.c
+++ b/thirdparty/freetype/src/base/ftinit.c
@@ -4,7 +4,7 @@
*
* FreeType initialization layer (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -202,6 +202,10 @@
FT_Memory memory;
+#ifdef FT_DEBUG_LOGGING
+ ft_logging_init();
+#endif
+
/* check of `alibrary' delayed to `FT_New_Library' */
/* First of all, allocate a new system object -- this function is part */
@@ -248,6 +252,10 @@
/* discard memory manager */
FT_Done_Memory( memory );
+#ifdef FT_DEBUG_LOGGING
+ ft_logging_deinit();
+#endif
+
return FT_Err_Ok;
}
diff --git a/thirdparty/freetype/src/base/ftlcdfil.c b/thirdparty/freetype/src/base/ftlcdfil.c
index 1e84dbc894..488b913e63 100644
--- a/thirdparty/freetype/src/base/ftlcdfil.c
+++ b/thirdparty/freetype/src/base/ftlcdfil.c
@@ -4,7 +4,7 @@
*
* FreeType API for color filtering of subpixel bitmap glyphs (body).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -32,7 +32,7 @@
/* add padding according to filter weights */
- FT_BASE_DEF (void)
+ FT_BASE_DEF( void )
ft_lcd_padding( FT_BBox* cbox,
FT_GlyphSlot slot,
FT_Render_Mode mode )
@@ -357,7 +357,7 @@
FT_EXPORT_DEF( FT_Error )
FT_Library_SetLcdGeometry( FT_Library library,
- FT_Vector* sub )
+ FT_Vector sub[3] )
{
FT_UNUSED( library );
FT_UNUSED( sub );
@@ -368,7 +368,7 @@
#else /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
/* add padding to accommodate outline shifts */
- FT_BASE_DEF (void)
+ FT_BASE_DEF( void )
ft_lcd_padding( FT_BBox* cbox,
FT_GlyphSlot slot,
FT_Render_Mode mode )
@@ -428,7 +428,7 @@
ft_memcpy( library->lcd_geometry, sub, 3 * sizeof( FT_Vector ) );
- return FT_THROW( Unimplemented_Feature );
+ return FT_Err_Ok;
}
#endif /* !FT_CONFIG_OPTION_SUBPIXEL_RENDERING */
diff --git a/thirdparty/freetype/src/base/ftmac.c b/thirdparty/freetype/src/base/ftmac.c
index 55a631fd74..36a860979e 100644
--- a/thirdparty/freetype/src/base/ftmac.c
+++ b/thirdparty/freetype/src/base/ftmac.c
@@ -8,7 +8,7 @@
* This file is for Mac OS X only; see builds/mac/ftoldmac.c for
* classic platforms built by MPW.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* Just van Rossum, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -560,7 +560,7 @@
if ( lwfn_file_name[0] )
{
err = lookup_lwfn_by_fond( pathname, lwfn_file_name,
- buff, sizeof ( buff ) );
+ buff, sizeof ( buff ) );
if ( !err )
have_lwfn = 1;
}
@@ -631,7 +631,7 @@
old_total_size = total_size;
}
- if ( FT_ALLOC( buffer, (FT_Long)total_size ) )
+ if ( FT_QALLOC( buffer, (FT_Long)total_size ) )
goto Error;
/* Second pass: append all POST data to the buffer, add PFB fields. */
@@ -752,7 +752,7 @@
if ( FT_MAC_RFORK_MAX_LEN < sfnt_size )
return FT_THROW( Array_Too_Large );
- if ( FT_ALLOC( sfnt_data, (FT_Long)sfnt_size ) )
+ if ( FT_QALLOC( sfnt_data, (FT_Long)sfnt_size ) )
{
ReleaseResource( sfnt );
return error;
diff --git a/thirdparty/freetype/src/base/ftmm.c b/thirdparty/freetype/src/base/ftmm.c
index 9a702b9933..fc5d4ecc8d 100644
--- a/thirdparty/freetype/src/base/ftmm.c
+++ b/thirdparty/freetype/src/base/ftmm.c
@@ -4,7 +4,7 @@
*
* Multiple Master font support (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftobjs.c b/thirdparty/freetype/src/base/ftobjs.c
index c060bbbc87..883f1a8970 100644
--- a/thirdparty/freetype/src/base/ftobjs.c
+++ b/thirdparty/freetype/src/base/ftobjs.c
@@ -4,7 +4,7 @@
*
* The FreeType private base classes (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -78,6 +78,9 @@
#pragma warning( pop )
#endif
+ /* This array must stay in sync with the @FT_Pixel_Mode enumeration */
+ /* (in file `ftimage.h`). */
+
static const char* const pixel_modes[] =
{
"none",
@@ -87,7 +90,8 @@
"gray 4-bit bitmap",
"LCD 8-bit bitmap",
"vertical LCD 8-bit bitmap",
- "BGRA 32-bit color image bitmap"
+ "BGRA 32-bit color image bitmap",
+ "SDF 8-bit bitmap"
};
#endif /* FT_DEBUG_LEVEL_TRACE */
@@ -193,6 +197,7 @@
FT_Error error;
FT_Memory memory;
FT_Stream stream = NULL;
+ FT_UInt mode;
*astream = NULL;
@@ -204,49 +209,56 @@
return FT_THROW( Invalid_Argument );
memory = library->memory;
+ mode = args->flags &
+ ( FT_OPEN_MEMORY | FT_OPEN_STREAM | FT_OPEN_PATHNAME );
- if ( FT_NEW( stream ) )
- goto Exit;
-
- stream->memory = memory;
-
- if ( args->flags & FT_OPEN_MEMORY )
+ if ( mode == FT_OPEN_MEMORY )
{
/* create a memory-based stream */
+ if ( FT_NEW( stream ) )
+ goto Exit;
+
FT_Stream_OpenMemory( stream,
(const FT_Byte*)args->memory_base,
(FT_ULong)args->memory_size );
+ stream->memory = memory;
}
#ifndef FT_CONFIG_OPTION_DISABLE_STREAM_SUPPORT
- else if ( args->flags & FT_OPEN_PATHNAME )
+ else if ( mode == FT_OPEN_PATHNAME )
{
/* create a normal system stream */
+ if ( FT_NEW( stream ) )
+ goto Exit;
+
+ stream->memory = memory;
error = FT_Stream_Open( stream, args->pathname );
- stream->pathname.pointer = args->pathname;
+ if ( error )
+ FT_FREE( stream );
}
- else if ( ( args->flags & FT_OPEN_STREAM ) && args->stream )
+ else if ( ( mode == FT_OPEN_STREAM ) && args->stream )
{
/* use an existing, user-provided stream */
/* in this case, we do not need to allocate a new stream object */
/* since the caller is responsible for closing it himself */
- FT_FREE( stream );
- stream = args->stream;
+ stream = args->stream;
+ stream->memory = memory;
+ error = FT_Err_Ok;
}
#endif
else
+ {
error = FT_THROW( Invalid_Argument );
+ if ( ( args->flags & FT_OPEN_STREAM ) && args->stream )
+ FT_Stream_Close( args->stream );
+ }
- if ( error )
- FT_FREE( stream );
- else
- stream->memory = memory; /* just to be certain */
-
- *astream = stream;
+ if ( !error )
+ *astream = stream;
Exit:
return error;
@@ -523,7 +535,7 @@
else
slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
- (void)FT_ALLOC( slot->bitmap.buffer, size );
+ FT_MEM_ALLOC( slot->bitmap.buffer, size );
return error;
}
@@ -535,6 +547,8 @@
ft_glyphslot_free_bitmap( slot );
/* clear all public fields in the glyph slot */
+ slot->glyph_index = 0;
+
FT_ZERO( &slot->metrics );
FT_ZERO( &slot->outline );
@@ -555,6 +569,8 @@
slot->linearHoriAdvance = 0;
slot->linearVertAdvance = 0;
+ slot->advance.x = 0;
+ slot->advance.y = 0;
slot->lsb_delta = 0;
slot->rsb_delta = 0;
}
@@ -734,6 +750,29 @@
}
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( void )
+ FT_Get_Transform( FT_Face face,
+ FT_Matrix* matrix,
+ FT_Vector* delta )
+ {
+ FT_Face_Internal internal;
+
+
+ if ( !face )
+ return;
+
+ internal = face->internal;
+
+ if ( matrix )
+ *matrix = internal->transform_matrix;
+
+ if ( delta )
+ *delta = internal->transform_delta;
+ }
+
+
static FT_Renderer
ft_lookup_glyph_renderer( FT_GlyphSlot slot );
@@ -1056,19 +1095,24 @@
#ifdef FT_DEBUG_LEVEL_TRACE
FT_TRACE5(( "FT_Load_Glyph: index %d, flags 0x%x\n",
glyph_index, load_flags ));
+ FT_TRACE5(( " bitmap %dx%d %s, %s (mode %d)\n",
+ slot->bitmap.width,
+ slot->bitmap.rows,
+ slot->outline.points ?
+ slot->bitmap.buffer ? "rendered"
+ : "preset"
+ :
+ slot->internal->flags & FT_GLYPH_OWN_BITMAP ? "owned"
+ : "unowned",
+ pixel_modes[slot->bitmap.pixel_mode],
+ slot->bitmap.pixel_mode ));
+ FT_TRACE5(( "\n" ));
FT_TRACE5(( " x advance: %f\n", slot->advance.x / 64.0 ));
FT_TRACE5(( " y advance: %f\n", slot->advance.y / 64.0 ));
FT_TRACE5(( " linear x advance: %f\n",
slot->linearHoriAdvance / 65536.0 ));
FT_TRACE5(( " linear y advance: %f\n",
slot->linearVertAdvance / 65536.0 ));
- FT_TRACE5(( "\n" ));
- FT_TRACE5(( " bitmap %dx%d, %s (mode %d)\n",
- slot->bitmap.width,
- slot->bitmap.rows,
- pixel_modes[slot->bitmap.pixel_mode],
- slot->bitmap.pixel_mode ));
- FT_TRACE5(( "\n" ));
{
FT_Glyph_Metrics* metrics = &slot->metrics;
@@ -1782,7 +1826,7 @@
if ( error )
goto Exit;
- if ( FT_ALLOC( sfnt_ps, (FT_Long)length ) )
+ if ( FT_QALLOC( sfnt_ps, (FT_Long)length ) )
goto Exit;
error = FT_Stream_Read( stream, (FT_Byte *)sfnt_ps, length );
@@ -1892,7 +1936,7 @@
goto Exit;
}
- if ( FT_ALLOC( pfb_data, (FT_Long)pfb_len + 2 ) )
+ if ( FT_QALLOC( pfb_data, (FT_Long)pfb_len + 2 ) )
goto Exit;
pfb_data[0] = 0x80;
@@ -1956,7 +2000,7 @@
{
FT_TRACE3(( " Write POST fragment #%d header (4-byte) to buffer"
" %p + 0x%08lx\n",
- i, pfb_data, pfb_lenpos ));
+ i, (void*)pfb_data, pfb_lenpos ));
if ( pfb_lenpos + 3 > pfb_len + 2 )
goto Exit2;
@@ -1971,7 +2015,7 @@
FT_TRACE3(( " Write POST fragment #%d header (6-byte) to buffer"
" %p + 0x%08lx\n",
- i, pfb_data, pfb_pos ));
+ i, (void*)pfb_data, pfb_pos ));
if ( pfb_pos + 6 > pfb_len + 2 )
goto Exit2;
@@ -1994,7 +2038,7 @@
FT_TRACE3(( " Load POST fragment #%d (%ld byte) to buffer"
" %p + 0x%08lx\n",
- i, rlen, pfb_data, pfb_pos ));
+ i, rlen, (void*)pfb_data, pfb_pos ));
error = FT_Stream_Read( stream, (FT_Byte *)pfb_data + pfb_pos, rlen );
if ( error )
@@ -2092,7 +2136,7 @@
if ( error )
goto Exit;
- if ( FT_ALLOC( sfnt_data, rlen ) )
+ if ( FT_QALLOC( sfnt_data, rlen ) )
return error;
error = FT_Stream_Read( stream, (FT_Byte *)sfnt_data, (FT_ULong)rlen );
if ( error ) {
@@ -2566,7 +2610,7 @@
FT_TRACE4(( "FT_Open_Face: New face object, adding to list\n" ));
/* add the face object to its driver's list */
- if ( FT_NEW( node ) )
+ if ( FT_QNEW( node ) )
goto Fail;
node->data = face;
@@ -2681,10 +2725,10 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( !error && face_index < 0 )
{
- FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n"
- " and %ld named instance%s for face %ld\n",
+ FT_TRACE3(( "FT_Open_Face: The font has %ld face%s\n",
face->num_faces,
- face->num_faces == 1 ? "" : "s",
+ face->num_faces == 1 ? "" : "s" ));
+ FT_TRACE3(( " and %ld named instance%s for face %ld\n",
face->style_flags >> 16,
( face->style_flags >> 16 ) == 1 ? "" : "s",
-face_index - 1 ));
@@ -2851,7 +2895,7 @@
memory = face->memory;
/* Allocate new size object and perform basic initialisation */
- if ( FT_ALLOC( size, clazz->size_object_size ) || FT_NEW( node ) )
+ if ( FT_ALLOC( size, clazz->size_object_size ) || FT_QNEW( node ) )
goto Exit;
size->face = face;
@@ -3088,10 +3132,12 @@
}
- FT_BASE_DEF( void )
+ FT_BASE_DEF( FT_Error )
FT_Request_Metrics( FT_Face face,
FT_Size_Request req )
{
+ FT_Error error = FT_Err_Ok;
+
FT_Size_Metrics* metrics;
@@ -3182,8 +3228,18 @@
scaled_h = FT_MulFix( face->units_per_EM, metrics->y_scale );
}
- metrics->x_ppem = (FT_UShort)( ( scaled_w + 32 ) >> 6 );
- metrics->y_ppem = (FT_UShort)( ( scaled_h + 32 ) >> 6 );
+ scaled_w = ( scaled_w + 32 ) >> 6;
+ scaled_h = ( scaled_h + 32 ) >> 6;
+ if ( scaled_w > (FT_Long)FT_USHORT_MAX ||
+ scaled_h > (FT_Long)FT_USHORT_MAX )
+ {
+ FT_ERROR(( "FT_Request_Metrics: Resulting ppem size too large\n" ));
+ error = FT_ERR( Invalid_Pixel_Size );
+ goto Exit;
+ }
+
+ metrics->x_ppem = (FT_UShort)scaled_w;
+ metrics->y_ppem = (FT_UShort)scaled_h;
ft_recompute_scaled_metrics( face, metrics );
}
@@ -3193,6 +3249,9 @@
metrics->x_scale = 1L << 16;
metrics->y_scale = 1L << 16;
}
+
+ Exit:
+ return error;
}
@@ -3256,7 +3315,7 @@
FT_Request_Size( FT_Face face,
FT_Size_Request req )
{
- FT_Error error = FT_Err_Ok;
+ FT_Error error;
FT_Driver_Class clazz;
FT_ULong strike_index;
@@ -3292,13 +3351,15 @@
*/
error = FT_Match_Size( face, req, 0, &strike_index );
if ( error )
- return error;
+ goto Exit;
return FT_Select_Size( face, (FT_Int)strike_index );
}
else
{
- FT_Request_Metrics( face, req );
+ error = FT_Request_Metrics( face, req );
+ if ( error )
+ goto Exit;
FT_TRACE5(( "FT_Request_Size:\n" ));
}
@@ -3321,6 +3382,7 @@
}
#endif
+ Exit:
return error;
}
@@ -3645,9 +3707,9 @@
FT_CharMap last_charmap = face->charmaps[face->num_charmaps - 1];
- if ( FT_RENEW_ARRAY( face->charmaps,
- face->num_charmaps,
- face->num_charmaps - 1 ) )
+ if ( FT_QRENEW_ARRAY( face->charmaps,
+ face->num_charmaps,
+ face->num_charmaps - 1 ) )
return;
/* remove it from our list of charmaps */
@@ -3679,7 +3741,7 @@
FT_CharMap charmap,
FT_CMap *acmap )
{
- FT_Error error = FT_Err_Ok;
+ FT_Error error;
FT_Face face;
FT_Memory memory;
FT_CMap cmap = NULL;
@@ -3704,9 +3766,9 @@
}
/* add it to our list of charmaps */
- if ( FT_RENEW_ARRAY( face->charmaps,
- face->num_charmaps,
- face->num_charmaps + 1 ) )
+ if ( FT_QRENEW_ARRAY( face->charmaps,
+ face->num_charmaps,
+ face->num_charmaps + 1 ) )
goto Fail;
face->charmaps[face->num_charmaps++] = (FT_CharMap)cmap;
@@ -4400,7 +4462,7 @@
FT_ListNode node = NULL;
- if ( FT_NEW( node ) )
+ if ( FT_QNEW( node ) )
goto Exit;
{
@@ -4412,8 +4474,7 @@
render->glyph_format = clazz->glyph_format;
/* allocate raster object if needed */
- if ( clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
- clazz->raster_class->raster_new )
+ if ( clazz->raster_class->raster_new )
{
error = clazz->raster_class->raster_new( memory, &render->raster );
if ( error )
@@ -4460,8 +4521,7 @@
/* release raster object, if any */
- if ( render->clazz->glyph_format == FT_GLYPH_FORMAT_OUTLINE &&
- render->raster )
+ if ( render->raster )
render->clazz->raster_class->raster_done( render->raster );
/* remove from list */
@@ -4556,9 +4616,6 @@
switch ( slot->format )
{
- case FT_GLYPH_FORMAT_BITMAP: /* already a bitmap, don't do anything */
- break;
-
default:
if ( slot->internal->load_flags & FT_LOAD_COLOR )
{
@@ -4646,7 +4703,7 @@
else
renderer = FT_Lookup_Renderer( library, slot->format, &node );
- error = FT_ERR( Unimplemented_Feature );
+ error = FT_ERR( Cannot_Render_Glyph );
while ( renderer )
{
error = renderer->render( renderer, slot, render_mode, NULL );
@@ -4662,6 +4719,11 @@
/* format. */
renderer = FT_Lookup_Renderer( library, slot->format, &node );
}
+
+ /* it is not an error if we cannot render a bitmap glyph */
+ if ( FT_ERR_EQ( error, Cannot_Render_Glyph ) &&
+ slot->format == FT_GLYPH_FORMAT_BITMAP )
+ error = FT_Err_Ok;
}
}
@@ -4734,11 +4796,11 @@
/* we use FT_TRACE7 in this block */
if ( !error &&
- ft_trace_levels[trace_checksum] >= 7 )
+ ft_trace_levels[trace_checksum] >= 7 &&
+ slot->bitmap.buffer )
{
if ( slot->bitmap.rows < 128U &&
- slot->bitmap.width < 128U &&
- slot->bitmap.buffer )
+ slot->bitmap.width < 128U )
{
int rows = (int)slot->bitmap.rows;
int width = (int)slot->bitmap.width;
@@ -5149,16 +5211,16 @@
if ( cur == limit )
{
- FT_ERROR(( "%s: can't find module `%s'\n",
- func_name, module_name ));
+ FT_TRACE2(( "%s: can't find module `%s'\n",
+ func_name, module_name ));
return FT_THROW( Missing_Module );
}
/* check whether we have a service interface */
if ( !cur[0]->clazz->get_interface )
{
- FT_ERROR(( "%s: module `%s' doesn't support properties\n",
- func_name, module_name ));
+ FT_TRACE2(( "%s: module `%s' doesn't support properties\n",
+ func_name, module_name ));
return FT_THROW( Unimplemented_Feature );
}
@@ -5167,8 +5229,8 @@
FT_SERVICE_ID_PROPERTIES );
if ( !interface )
{
- FT_ERROR(( "%s: module `%s' doesn't support properties\n",
- func_name, module_name ));
+ FT_TRACE2(( "%s: module `%s' doesn't support properties\n",
+ func_name, module_name ));
return FT_THROW( Unimplemented_Feature );
}
@@ -5181,8 +5243,8 @@
if ( missing_func )
{
- FT_ERROR(( "%s: property service of module `%s' is broken\n",
- func_name, module_name ));
+ FT_TRACE2(( "%s: property service of module `%s' is broken\n",
+ func_name, module_name ));
return FT_THROW( Unimplemented_Feature );
}
@@ -5292,10 +5354,12 @@
if ( !memory || !alibrary )
return FT_THROW( Invalid_Argument );
+#ifndef FT_DEBUG_LOGGING
#ifdef FT_DEBUG_LEVEL_ERROR
/* init debugging support */
ft_debug_init();
-#endif
+#endif /* FT_DEBUG_LEVEL_ERROR */
+#endif /* !FT_DEBUG_LOGGING */
/* first of all, allocate the library object */
if ( FT_NEW( library ) )
@@ -5567,4 +5631,145 @@
}
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( FT_Bool )
+ FT_Get_Color_Glyph_Paint( FT_Face face,
+ FT_UInt base_glyph,
+ FT_Color_Root_Transform root_transform,
+ FT_OpaquePaint* paint )
+ {
+ TT_Face ttface;
+ SFNT_Service sfnt;
+
+
+ if ( !face || !paint )
+ return 0;
+
+ if ( !FT_IS_SFNT( face ) )
+ return 0;
+
+ ttface = (TT_Face)face;
+ sfnt = (SFNT_Service)ttface->sfnt;
+
+ if ( sfnt->get_colr_layer )
+ return sfnt->get_colr_glyph_paint( ttface,
+ base_glyph,
+ root_transform,
+ paint );
+ else
+ return 0;
+ }
+
+
+ /* documentation is in ftcolor.h */
+
+ FT_EXPORT_DEF( FT_Bool )
+ FT_Get_Color_Glyph_ClipBox( FT_Face face,
+ FT_UInt base_glyph,
+ FT_ClipBox* clip_box )
+ {
+ TT_Face ttface;
+ SFNT_Service sfnt;
+
+
+ if ( !face || !clip_box )
+ return 0;
+
+ if ( !FT_IS_SFNT( face ) )
+ return 0;
+
+ ttface = (TT_Face)face;
+ sfnt = (SFNT_Service)ttface->sfnt;
+
+ if ( sfnt->get_color_glyph_clipbox )
+ return sfnt->get_color_glyph_clipbox( ttface,
+ base_glyph,
+ clip_box );
+ else
+ return 0;
+ }
+
+
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( FT_Bool )
+ FT_Get_Paint_Layers( FT_Face face,
+ FT_LayerIterator* layer_iterator,
+ FT_OpaquePaint* paint )
+ {
+ TT_Face ttface;
+ SFNT_Service sfnt;
+
+
+ if ( !face || !paint || !layer_iterator )
+ return 0;
+
+ if ( !FT_IS_SFNT( face ) )
+ return 0;
+
+ ttface = (TT_Face)face;
+ sfnt = (SFNT_Service)ttface->sfnt;
+
+ if ( sfnt->get_paint_layers )
+ return sfnt->get_paint_layers( ttface, layer_iterator, paint );
+ else
+ return 0;
+ }
+
+
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( FT_Bool )
+ FT_Get_Paint( FT_Face face,
+ FT_OpaquePaint opaque_paint,
+ FT_COLR_Paint* paint )
+ {
+ TT_Face ttface;
+ SFNT_Service sfnt;
+
+
+ if ( !face || !paint || !paint )
+ return 0;
+
+ if ( !FT_IS_SFNT( face ) )
+ return 0;
+
+ ttface = (TT_Face)face;
+ sfnt = (SFNT_Service)ttface->sfnt;
+
+ if ( sfnt->get_paint )
+ return sfnt->get_paint( ttface, opaque_paint, paint );
+ else
+ return 0;
+ }
+
+
+ /* documentation is in freetype.h */
+
+ FT_EXPORT_DEF( FT_Bool )
+ FT_Get_Colorline_Stops ( FT_Face face,
+ FT_ColorStop * color_stop,
+ FT_ColorStopIterator *iterator )
+ {
+ TT_Face ttface;
+ SFNT_Service sfnt;
+
+
+ if ( !face || !color_stop || !iterator )
+ return 0;
+
+ if ( !FT_IS_SFNT( face ) )
+ return 0;
+
+ ttface = (TT_Face)face;
+ sfnt = (SFNT_Service)ttface->sfnt;
+
+ if ( sfnt->get_colorline_stops )
+ return sfnt->get_colorline_stops ( ttface, color_stop, iterator );
+ else
+ return 0;
+ }
+
+
/* END */
diff --git a/thirdparty/freetype/src/base/ftotval.c b/thirdparty/freetype/src/base/ftotval.c
index 90a5dd617c..0f748d006c 100644
--- a/thirdparty/freetype/src/base/ftotval.c
+++ b/thirdparty/freetype/src/base/ftotval.c
@@ -4,7 +4,7 @@
*
* FreeType API for validating OpenType tables (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftoutln.c b/thirdparty/freetype/src/base/ftoutln.c
index 311f098e3a..98c6ca16e6 100644
--- a/thirdparty/freetype/src/base/ftoutln.c
+++ b/thirdparty/freetype/src/base/ftoutln.c
@@ -4,7 +4,7 @@
*
* FreeType outline management (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftpatent.c b/thirdparty/freetype/src/base/ftpatent.c
index a02c636a65..cd192d33bd 100644
--- a/thirdparty/freetype/src/base/ftpatent.c
+++ b/thirdparty/freetype/src/base/ftpatent.c
@@ -5,7 +5,7 @@
* FreeType API for checking patented TrueType bytecode instructions
* (body). Obsolete, retained for backward compatibility.
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* David Turner.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftpfr.c b/thirdparty/freetype/src/base/ftpfr.c
index c656fcd9b9..5afd5a183f 100644
--- a/thirdparty/freetype/src/base/ftpfr.c
+++ b/thirdparty/freetype/src/base/ftpfr.c
@@ -4,7 +4,7 @@
*
* FreeType API for accessing PFR-specific data (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftpsprop.c b/thirdparty/freetype/src/base/ftpsprop.c
index 8c29f50f6b..3655ae97ec 100644
--- a/thirdparty/freetype/src/base/ftpsprop.c
+++ b/thirdparty/freetype/src/base/ftpsprop.c
@@ -5,7 +5,7 @@
* Get and set properties of PostScript drivers (body).
* See `ftdriver.h' for available properties.
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -220,7 +220,7 @@
return error;
}
- FT_TRACE0(( "ps_property_set: missing property `%s'\n",
+ FT_TRACE2(( "ps_property_set: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -275,7 +275,7 @@
return error;
}
- FT_TRACE0(( "ps_property_get: missing property `%s'\n",
+ FT_TRACE2(( "ps_property_get: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
diff --git a/thirdparty/freetype/src/base/ftrfork.c b/thirdparty/freetype/src/base/ftrfork.c
index f989be47f4..cb7e94ddb0 100644
--- a/thirdparty/freetype/src/base/ftrfork.c
+++ b/thirdparty/freetype/src/base/ftrfork.c
@@ -4,7 +4,7 @@
*
* Embedded resource forks accessor (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO and Redhat K.K.
*
* FT_Raccess_Get_HeaderInfo() and raccess_guess_darwin_hfsplus() are
@@ -167,16 +167,11 @@
}
- static int
- ft_raccess_sort_ref_by_id( FT_RFork_Ref* a,
- FT_RFork_Ref* b )
+ FT_COMPARE_DEF( int )
+ ft_raccess_sort_ref_by_id( const void* a,
+ const void* b )
{
- if ( a->res_id < b->res_id )
- return -1;
- else if ( a->res_id > b->res_id )
- return 1;
- else
- return 0;
+ return ( (FT_RFork_Ref*)a )->res_id - ( (FT_RFork_Ref*)b )->res_id;
}
@@ -256,7 +251,7 @@
if ( error )
return error;
- if ( FT_NEW_ARRAY( ref, *count ) )
+ if ( FT_QNEW_ARRAY( ref, *count ) )
return error;
for ( j = 0; j < *count; j++ )
@@ -294,8 +289,7 @@
ft_qsort( ref,
(size_t)*count,
sizeof ( FT_RFork_Ref ),
- ( int(*)(const void*,
- const void*) )ft_raccess_sort_ref_by_id );
+ ft_raccess_sort_ref_by_id );
FT_TRACE3(( " -- sort resources by their ids --\n" ));
@@ -305,7 +299,7 @@
j, ref[j].res_id, ref[j].offset ));
}
- if ( FT_NEW_ARRAY( offsets_internal, *count ) )
+ if ( FT_QNEW_ARRAY( offsets_internal, *count ) )
goto Exit;
/* XXX: duplicated reference ID,
@@ -608,7 +602,7 @@
if ( base_file_len + 6 > FT_INT_MAX )
return FT_THROW( Array_Too_Large );
- if ( FT_ALLOC( newpath, base_file_len + 6 ) )
+ if ( FT_QALLOC( newpath, base_file_len + 6 ) )
return error;
FT_MEM_COPY( newpath, base_file_name, base_file_len );
@@ -644,7 +638,7 @@
if ( base_file_len + 18 > FT_INT_MAX )
return FT_THROW( Array_Too_Large );
- if ( FT_ALLOC( newpath, base_file_len + 18 ) )
+ if ( FT_QALLOC( newpath, base_file_len + 18 ) )
return error;
FT_MEM_COPY( newpath, base_file_name, base_file_len );
@@ -880,7 +874,7 @@
new_length = ft_strlen( original_name ) + ft_strlen( insertion );
- if ( FT_ALLOC( new_name, new_length + 1 ) )
+ if ( FT_QALLOC( new_name, new_length + 1 ) )
return NULL;
tmp = ft_strrchr( original_name, '/' );
diff --git a/thirdparty/freetype/src/base/ftsnames.c b/thirdparty/freetype/src/base/ftsnames.c
index 8507f28d36..44dba66638 100644
--- a/thirdparty/freetype/src/base/ftsnames.c
+++ b/thirdparty/freetype/src/base/ftsnames.c
@@ -7,7 +7,7 @@
*
* This is _not_ used to retrieve glyph names!
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -65,7 +65,7 @@
FT_Stream stream = face->stream;
- if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) ||
+ if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) ||
FT_STREAM_SEEK( entry->stringOffset ) ||
FT_STREAM_READ( entry->string, entry->stringLength ) )
{
@@ -121,7 +121,7 @@
FT_Stream stream = face->stream;
- if ( FT_NEW_ARRAY ( entry->string, entry->stringLength ) ||
+ if ( FT_QNEW_ARRAY ( entry->string, entry->stringLength ) ||
FT_STREAM_SEEK( entry->stringOffset ) ||
FT_STREAM_READ( entry->string, entry->stringLength ) )
{
diff --git a/thirdparty/freetype/src/base/ftstream.c b/thirdparty/freetype/src/base/ftstream.c
index d940254d8b..5992998ba3 100644
--- a/thirdparty/freetype/src/base/ftstream.c
+++ b/thirdparty/freetype/src/base/ftstream.c
@@ -4,7 +4,7 @@
*
* I/O stream support (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -61,7 +61,7 @@
if ( stream->read )
{
- if ( stream->read( stream, pos, 0, 0 ) )
+ if ( stream->read( stream, pos, NULL, 0 ) )
{
FT_ERROR(( "FT_Stream_Seek:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
@@ -347,17 +347,17 @@
}
- FT_BASE_DEF( FT_Char )
- FT_Stream_GetChar( FT_Stream stream )
+ FT_BASE_DEF( FT_Byte )
+ FT_Stream_GetByte( FT_Stream stream )
{
- FT_Char result;
+ FT_Byte result;
FT_ASSERT( stream && stream->cursor );
result = 0;
if ( stream->cursor < stream->limit )
- result = (FT_Char)*stream->cursor++;
+ result = *stream->cursor++;
return result;
}
@@ -455,8 +455,8 @@
}
- FT_BASE_DEF( FT_Char )
- FT_Stream_ReadChar( FT_Stream stream,
+ FT_BASE_DEF( FT_Byte )
+ FT_Stream_ReadByte( FT_Stream stream,
FT_Error* error )
{
FT_Byte result = 0;
@@ -464,31 +464,32 @@
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
- if ( stream->read )
+ if ( stream->pos < stream->size )
{
- if ( stream->read( stream, stream->pos, &result, 1L ) != 1L )
- goto Fail;
- }
- else
- {
- if ( stream->pos < stream->size )
- result = stream->base[stream->pos];
+ if ( stream->read )
+ {
+ if ( stream->read( stream, stream->pos, &result, 1L ) != 1L )
+ goto Fail;
+ }
else
- goto Fail;
+ result = stream->base[stream->pos];
}
+ else
+ goto Fail;
+
stream->pos++;
- return (FT_Char)result;
+ *error = FT_Err_Ok;
+
+ return result;
Fail:
*error = FT_THROW( Invalid_Stream_Operation );
- FT_ERROR(( "FT_Stream_ReadChar:"
+ FT_ERROR(( "FT_Stream_ReadByte:"
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
@@ -497,14 +498,12 @@
FT_Error* error )
{
FT_Byte reads[2];
- FT_Byte* p = 0;
+ FT_Byte* p;
FT_UShort result = 0;
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
if ( stream->pos + 1 < stream->size )
{
if ( stream->read )
@@ -525,6 +524,8 @@
stream->pos += 2;
+ *error = FT_Err_Ok;
+
return result;
Fail:
@@ -533,7 +534,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
@@ -542,14 +543,12 @@
FT_Error* error )
{
FT_Byte reads[2];
- FT_Byte* p = 0;
+ FT_Byte* p;
FT_UShort result = 0;
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
if ( stream->pos + 1 < stream->size )
{
if ( stream->read )
@@ -570,6 +569,8 @@
stream->pos += 2;
+ *error = FT_Err_Ok;
+
return result;
Fail:
@@ -578,7 +579,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
@@ -587,14 +588,12 @@
FT_Error* error )
{
FT_Byte reads[3];
- FT_Byte* p = 0;
+ FT_Byte* p;
FT_ULong result = 0;
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
if ( stream->pos + 2 < stream->size )
{
if ( stream->read )
@@ -615,6 +614,8 @@
stream->pos += 3;
+ *error = FT_Err_Ok;
+
return result;
Fail:
@@ -623,7 +624,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
@@ -632,14 +633,12 @@
FT_Error* error )
{
FT_Byte reads[4];
- FT_Byte* p = 0;
+ FT_Byte* p;
FT_ULong result = 0;
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
if ( stream->pos + 3 < stream->size )
{
if ( stream->read )
@@ -660,6 +659,8 @@
stream->pos += 4;
+ *error = FT_Err_Ok;
+
return result;
Fail:
@@ -668,7 +669,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
@@ -677,14 +678,12 @@
FT_Error* error )
{
FT_Byte reads[4];
- FT_Byte* p = 0;
+ FT_Byte* p;
FT_ULong result = 0;
FT_ASSERT( stream );
- *error = FT_Err_Ok;
-
if ( stream->pos + 3 < stream->size )
{
if ( stream->read )
@@ -705,6 +704,8 @@
stream->pos += 4;
+ *error = FT_Err_Ok;
+
return result;
Fail:
@@ -713,7 +714,7 @@
" invalid i/o; pos = 0x%lx, size = 0x%lx\n",
stream->pos, stream->size ));
- return 0;
+ return result;
}
diff --git a/thirdparty/freetype/src/base/ftstroke.c b/thirdparty/freetype/src/base/ftstroke.c
index 56f98e1d92..37e9649411 100644
--- a/thirdparty/freetype/src/base/ftstroke.c
+++ b/thirdparty/freetype/src/base/ftstroke.c
@@ -4,7 +4,7 @@
*
* FreeType path stroker (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -974,7 +974,8 @@
FT_StrokeBorder border = stroker->borders + side;
FT_Angle phi, theta, rotate;
FT_Fixed length;
- FT_Vector sigma, delta;
+ FT_Vector sigma = { 0, 0 };
+ FT_Vector delta;
FT_Error error = FT_Err_Ok;
FT_Bool intersect; /* use intersection of lines? */
@@ -1048,7 +1049,7 @@
{
/* this is a mitered (pointed) or beveled (truncated) corner */
FT_Fixed radius = stroker->radius;
- FT_Vector sigma;
+ FT_Vector sigma = { 0, 0 };
FT_Angle theta = 0, phi = 0;
FT_Bool bevel, fixed_bevel;
@@ -1528,7 +1529,8 @@
stroker->angle_in = angle_out;
}
- stroker->center = *to;
+ stroker->center = *to;
+ stroker->line_length = 0;
Exit:
return error;
@@ -1744,7 +1746,8 @@
stroker->angle_in = angle_out;
}
- stroker->center = *to;
+ stroker->center = *to;
+ stroker->line_length = 0;
Exit:
return error;
@@ -1897,13 +1900,9 @@
}
else
{
- FT_Angle turn;
- FT_Int inside_side;
-
-
/* close the path if needed */
- if ( stroker->center.x != stroker->subpath_start.x ||
- stroker->center.y != stroker->subpath_start.y )
+ if ( !FT_IS_SMALL( stroker->center.x - stroker->subpath_start.x ) ||
+ !FT_IS_SMALL( stroker->center.y - stroker->subpath_start.y ) )
{
error = FT_Stroker_LineTo( stroker, &stroker->subpath_start );
if ( error )
@@ -1912,29 +1911,11 @@
/* process the corner */
stroker->angle_out = stroker->subpath_angle;
- turn = FT_Angle_Diff( stroker->angle_in,
- stroker->angle_out );
-
- /* no specific corner processing is required if the turn is 0 */
- if ( turn != 0 )
- {
- /* when we turn to the right, the inside side is 0 */
- /* otherwise, the inside side is 1 */
- inside_side = ( turn < 0 );
- error = ft_stroker_inside( stroker,
- inside_side,
- stroker->subpath_line_length );
- if ( error )
- goto Exit;
-
- /* process the outside side */
- error = ft_stroker_outside( stroker,
- !inside_side,
- stroker->subpath_line_length );
- if ( error )
- goto Exit;
- }
+ error = ft_stroker_process_corner( stroker,
+ stroker->subpath_line_length );
+ if ( error )
+ goto Exit;
/* then end our two subpaths */
ft_stroke_border_close( stroker->borders + 0, FALSE );
diff --git a/thirdparty/freetype/src/base/ftsynth.c b/thirdparty/freetype/src/base/ftsynth.c
index a9119e2b24..73565b1307 100644
--- a/thirdparty/freetype/src/base/ftsynth.c
+++ b/thirdparty/freetype/src/base/ftsynth.c
@@ -4,7 +4,7 @@
*
* FreeType synthesizing code for emboldening and slanting (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftsystem.c b/thirdparty/freetype/src/base/ftsystem.c
index 3013cbda9d..9beb7e245d 100644
--- a/thirdparty/freetype/src/base/ftsystem.c
+++ b/thirdparty/freetype/src/base/ftsystem.c
@@ -4,7 +4,7 @@
*
* ANSI-specific FreeType low-level system interface (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -275,7 +275,7 @@
stream->close = ft_ansi_stream_close;
FT_TRACE1(( "FT_Stream_Open:" ));
- FT_TRACE1(( " opened `%s' (%d bytes) successfully\n",
+ FT_TRACE1(( " opened `%s' (%ld bytes) successfully\n",
filepathname, stream->size ));
return FT_Err_Ok;
diff --git a/thirdparty/freetype/src/base/fttrigon.c b/thirdparty/freetype/src/base/fttrigon.c
index c6f027cf61..0ca6d7810a 100644
--- a/thirdparty/freetype/src/base/fttrigon.c
+++ b/thirdparty/freetype/src/base/fttrigon.c
@@ -4,7 +4,7 @@
*
* FreeType trigonometric functions (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -53,7 +53,7 @@
};
-#ifdef FT_LONG64
+#ifdef FT_INT64
/* multiply a given value by the CORDIC shrink factor */
static FT_Fixed
@@ -76,7 +76,7 @@
return s < 0 ? -val : val;
}
-#else /* !FT_LONG64 */
+#else /* !FT_INT64 */
/* multiply a given value by the CORDIC shrink factor */
static FT_Fixed
@@ -125,7 +125,7 @@
return s < 0 ? -val : val;
}
-#endif /* !FT_LONG64 */
+#endif /* !FT_INT64 */
/* undefined and never called for zero vector */
diff --git a/thirdparty/freetype/src/base/fttype1.c b/thirdparty/freetype/src/base/fttype1.c
index be60ed6ec5..0d0afbcef0 100644
--- a/thirdparty/freetype/src/base/fttype1.c
+++ b/thirdparty/freetype/src/base/fttype1.c
@@ -4,7 +4,7 @@
*
* FreeType utility file for PS names support (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftutil.c b/thirdparty/freetype/src/base/ftutil.c
index d90cfbcd26..3142faee98 100644
--- a/thirdparty/freetype/src/base/ftutil.c
+++ b/thirdparty/freetype/src/base/ftutil.c
@@ -4,7 +4,7 @@
*
* FreeType utility file for memory and list management (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/ftver.rc b/thirdparty/freetype/src/base/ftver.rc
index 0b92e9b899..a3d05b3780 100644
--- a/thirdparty/freetype/src/base/ftver.rc
+++ b/thirdparty/freetype/src/base/ftver.rc
@@ -4,7 +4,7 @@
/* */
/* FreeType VERSIONINFO resource for Windows DLLs. */
/* */
-/* Copyright (C) 2018-2020 by */
+/* Copyright (C) 2018-2021 by */
/* David Turner, Robert Wilhelm, and Werner Lemberg. */
/* */
/* This file is part of the FreeType project, and may only be used, */
@@ -18,8 +18,8 @@
#include<windows.h>
-#define FT_VERSION 2,10,4,0
-#define FT_VERSION_STR "2.10.4"
+#define FT_VERSION 2,11,1,0
+#define FT_VERSION_STR "2.11.1"
VS_VERSION_INFO VERSIONINFO
FILEVERSION FT_VERSION
@@ -45,7 +45,7 @@ BEGIN
VALUE "FileVersion", FT_VERSION_STR
VALUE "ProductName", "FreeType"
VALUE "ProductVersion", FT_VERSION_STR
- VALUE "LegalCopyright", "\251 2000-2020 The FreeType Project www.freetype.org. All rights reserved."
+ VALUE "LegalCopyright", "\251 2000-2021 The FreeType Project www.freetype.org. All rights reserved."
VALUE "InternalName", "freetype"
VALUE "OriginalFilename", FT_FILENAME
END
diff --git a/thirdparty/freetype/src/base/ftwinfnt.c b/thirdparty/freetype/src/base/ftwinfnt.c
index 699dc3d700..98f197afdc 100644
--- a/thirdparty/freetype/src/base/ftwinfnt.c
+++ b/thirdparty/freetype/src/base/ftwinfnt.c
@@ -4,7 +4,7 @@
*
* FreeType API for accessing Windows FNT specific info (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/base/rules.mk b/thirdparty/freetype/src/base/rules.mk
deleted file mode 100644
index 411c4c821f..0000000000
--- a/thirdparty/freetype/src/base/rules.mk
+++ /dev/null
@@ -1,108 +0,0 @@
-#
-# FreeType 2 base layer configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# It sets the following variables which are used by the master Makefile
-# after the call:
-#
-# BASE_OBJ_S: The single-object base layer.
-# BASE_OBJ_M: A list of all objects for a multiple-objects build.
-# BASE_EXT_OBJ: A list of base layer extensions, i.e., components found
-# in `src/base' which are not compiled within the base
-# layer proper.
-
-
-BASE_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(BASE_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# Base layer sources
-#
-# ftsystem, ftinit, and ftdebug are handled by freetype.mk
-#
-# All files listed here should be included in `ftbase.c' (for a `single'
-# build).
-#
-BASE_SRC := $(BASE_DIR)/ftadvanc.c \
- $(BASE_DIR)/ftcalc.c \
- $(BASE_DIR)/ftcolor.c \
- $(BASE_DIR)/ftdbgmem.c \
- $(BASE_DIR)/fterrors.c \
- $(BASE_DIR)/ftfntfmt.c \
- $(BASE_DIR)/ftgloadr.c \
- $(BASE_DIR)/fthash.c \
- $(BASE_DIR)/ftlcdfil.c \
- $(BASE_DIR)/ftobjs.c \
- $(BASE_DIR)/ftoutln.c \
- $(BASE_DIR)/ftpsprop.c \
- $(BASE_DIR)/ftrfork.c \
- $(BASE_DIR)/ftsnames.c \
- $(BASE_DIR)/ftstream.c \
- $(BASE_DIR)/fttrigon.c \
- $(BASE_DIR)/ftutil.c
-
-
-ifneq ($(ftmac_c),)
- BASE_SRC += $(BASE_DIR)/$(ftmac_c)
-endif
-
-# for simplicity, we also handle `md5.c' (which gets included by `ftobjs.h')
-BASE_H := $(BASE_DIR)/ftbase.h \
- $(BASE_DIR)/md5.c \
- $(BASE_DIR)/md5.h
-
-# Base layer `extensions' sources
-#
-# An extension is added to the library file as a separate object. It is
-# then linked to the final executable only if one of its symbols is used by
-# the application.
-#
-BASE_EXT_SRC := $(patsubst %,$(BASE_DIR)/%,$(BASE_EXTENSIONS))
-
-# Default extensions objects
-#
-BASE_EXT_OBJ := $(BASE_EXT_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O)
-
-
-# Base layer object(s)
-#
-# BASE_OBJ_M is used during `multi' builds (each base source file compiles
-# to a single object file).
-#
-# BASE_OBJ_S is used during `single' builds (the whole base layer is
-# compiled as a single object file using ftbase.c).
-#
-BASE_OBJ_M := $(BASE_SRC:$(BASE_DIR)/%.c=$(OBJ_DIR)/%.$O)
-BASE_OBJ_S := $(OBJ_DIR)/ftbase.$O
-
-# Base layer root source file for single build
-#
-BASE_SRC_S := $(BASE_DIR)/ftbase.c
-
-
-# Base layer - single object build
-#
-$(BASE_OBJ_S): $(BASE_SRC_S) $(BASE_SRC) $(FREETYPE_H) $(BASE_H)
- $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BASE_SRC_S))
-
-
-# Multiple objects build + extensions
-#
-$(OBJ_DIR)/%.$O: $(BASE_DIR)/%.c $(FREETYPE_H) $(BASE_H)
- $(BASE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/bdf/bdfdrivr.c b/thirdparty/freetype/src/bdf/bdfdrivr.c
index d29188b97b..eb73a7cf93 100644
--- a/thirdparty/freetype/src/bdf/bdfdrivr.c
+++ b/thirdparty/freetype/src/bdf/bdfdrivr.c
@@ -276,7 +276,7 @@ THE SOFTWARE.
char* s;
- if ( FT_ALLOC( face->style_name, len ) )
+ if ( FT_QALLOC( face->style_name, len ) )
return error;
s = face->style_name;
@@ -442,7 +442,7 @@ THE SOFTWARE.
bdfface->num_glyphs = (FT_Long)( font->glyphs_size + 1 );
bdfface->num_fixed_sizes = 1;
- if ( FT_NEW_ARRAY( bdfface->available_sizes, 1 ) )
+ if ( FT_NEW( bdfface->available_sizes ) )
goto Exit;
{
@@ -451,8 +451,6 @@ THE SOFTWARE.
long value;
- FT_ZERO( bsize );
-
/* sanity checks */
if ( font->font_ascent > 0x7FFF || font->font_ascent < -0x7FFF )
{
@@ -489,7 +487,7 @@ THE SOFTWARE.
else
{
/* this is a heuristical value */
- bsize->width = (FT_Short)FT_MulDiv( bsize->height, 2, 3 );
+ bsize->width = ( bsize->height * 2 + 1 ) / 3;
}
prop = bdf_get_font_property( font, "POINT_SIZE" );
@@ -608,7 +606,7 @@ THE SOFTWARE.
unsigned long n;
- if ( FT_NEW_ARRAY( face->en_table, font->glyphs_size ) )
+ if ( FT_QNEW_ARRAY( face->en_table, font->glyphs_size ) )
goto Exit;
face->default_glyph = 0;
diff --git a/thirdparty/freetype/src/bdf/bdflib.c b/thirdparty/freetype/src/bdf/bdflib.c
index a4ddb9a1d9..b65c8a2f3e 100644
--- a/thirdparty/freetype/src/bdf/bdflib.c
+++ b/thirdparty/freetype/src/bdf/bdflib.c
@@ -170,7 +170,7 @@
/* An auxiliary macro to parse properties, to be used in conditionals. */
/* It behaves like `strncmp' but also tests the following character */
- /* whether it is a whitespace or NULL. */
+ /* whether it is a whitespace or null. */
/* `property' is a constant string of length `n' to compare with. */
#define _bdf_strncmp( name, property, n ) \
( ft_strncmp( name, property, n ) || \
@@ -185,12 +185,12 @@
"Added `FONT_ASCENT %hd'.\n"
#define ACMSG2 "FONT_DESCENT property missing. " \
"Added `FONT_DESCENT %hd'.\n"
-#define ACMSG3 "Font width != actual width. Old: %hd New: %hd.\n"
+#define ACMSG3 "Font width != actual width. Old: %d New: %d.\n"
#define ACMSG4 "Font left bearing != actual left bearing. " \
"Old: %hd New: %hd.\n"
#define ACMSG5 "Font ascent != actual ascent. Old: %hd New: %hd.\n"
-#define ACMSG6 "Font descent != actual descent. Old: %hd New: %hd.\n"
-#define ACMSG7 "Font height != actual height. Old: %hd New: %hd.\n"
+#define ACMSG6 "Font descent != actual descent. Old: %d New: %d.\n"
+#define ACMSG7 "Font height != actual height. Old: %d New: %d.\n"
#define ACMSG8 "Glyph scalable width (SWIDTH) adjustments made.\n"
#define ACMSG9 "SWIDTH field missing at line %ld. Set automatically.\n"
#define ACMSG10 "DWIDTH field missing at line %ld. Set to glyph width.\n"
@@ -328,7 +328,7 @@
else if ( newsize < oldsize || newsize > bigsize )
newsize = bigsize;
- if ( FT_RENEW_ARRAY( list->field, oldsize, newsize ) )
+ if ( FT_QRENEW_ARRAY( list->field, oldsize, newsize ) )
goto Exit;
list->size = newsize;
@@ -346,7 +346,7 @@
unsigned long i, u;
- if ( list == 0 || list->used == 0 || n == 0 )
+ if ( list == NULL || list->used == 0 || n == 0 )
return;
if ( n >= list->used )
@@ -377,7 +377,7 @@
*alen = 0;
- if ( list == 0 || list->used == 0 )
+ if ( list == NULL || list->used == 0 )
return 0;
dp = list->field[0];
@@ -436,7 +436,7 @@
/* In the original code, if the `separators' parameter is NULL or */
/* empty, the list is split into individual bytes. We don't need */
/* this, so an error is signaled. */
- if ( separators == 0 || *separators == 0 )
+ if ( separators == NULL || *separators == 0 )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@@ -504,7 +504,7 @@
if ( final_empty )
list->field[list->used++] = (char*)empty;
- list->field[list->used] = 0;
+ list->field[list->used] = NULL;
Exit:
return error;
@@ -529,7 +529,7 @@
FT_Error error = FT_Err_Ok;
- if ( callback == 0 )
+ if ( callback == NULL )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@@ -538,7 +538,7 @@
/* initial size and allocation of the input buffer */
buf_size = 1024;
- if ( FT_NEW_ARRAY( buf, buf_size ) )
+ if ( FT_QALLOC( buf, buf_size ) )
goto Exit;
cb = callback;
@@ -581,8 +581,14 @@
/* or even resizing it */
if ( end >= avail )
{
- if ( bytes == 0 ) /* last line in file doesn't end in \r or \n */
- break; /* ignore it then exit */
+ if ( bytes == 0 )
+ {
+ /* last line in file doesn't end in \r or \n; */
+ /* ignore it then exit */
+ if ( lineno == 1 )
+ error = FT_THROW( Missing_Startfont_Field );
+ break;
+ }
if ( start == 0 )
{
@@ -593,13 +599,18 @@
if ( buf_size >= 65536UL ) /* limit ourselves to 64KByte */
{
- FT_ERROR(( "_bdf_readstream: " ERRMSG6, lineno ));
- error = FT_THROW( Invalid_Argument );
+ if ( lineno == 1 )
+ error = FT_THROW( Missing_Startfont_Field );
+ else
+ {
+ FT_ERROR(( "_bdf_readstream: " ERRMSG6, lineno ));
+ error = FT_THROW( Invalid_Argument );
+ }
goto Exit;
}
new_size = buf_size * 2;
- if ( FT_RENEW_ARRAY( buf, buf_size, new_size ) )
+ if ( FT_QREALLOC( buf, buf_size, new_size ) )
goto Exit;
cursor = (ptrdiff_t)buf_size;
@@ -697,7 +708,7 @@
unsigned long v;
- if ( s == 0 || *s == 0 )
+ if ( s == NULL || *s == 0 )
return 0;
for ( v = 0; sbitset( ddigits, *s ); s++ )
@@ -722,7 +733,7 @@
long v, neg;
- if ( s == 0 || *s == 0 )
+ if ( s == NULL || *s == 0 )
return 0;
/* Check for a minus sign. */
@@ -755,7 +766,7 @@
unsigned short v;
- if ( s == 0 || *s == 0 )
+ if ( s == NULL || *s == 0 )
return 0;
for ( v = 0; sbitset( ddigits, *s ); s++ )
@@ -780,7 +791,7 @@
short v, neg;
- if ( s == 0 || *s == 0 )
+ if ( s == NULL || *s == 0 )
return 0;
/* Check for a minus. */
@@ -807,7 +818,7 @@
/* Routine to compare two glyphs by encoding so they can be sorted. */
- static int
+ FT_COMPARE_DEF( int )
by_encoding( const void* a,
const void* b )
{
@@ -844,25 +855,25 @@
if ( ft_hash_str_lookup( name, &(font->proptbl) ) )
goto Exit;
- if ( FT_RENEW_ARRAY( font->user_props,
- font->nuser_props,
- font->nuser_props + 1 ) )
+ if ( FT_QRENEW_ARRAY( font->user_props,
+ font->nuser_props,
+ font->nuser_props + 1 ) )
goto Exit;
p = font->user_props + font->nuser_props;
- FT_ZERO( p );
n = ft_strlen( name ) + 1;
- if ( n > FT_ULONG_MAX )
+ if ( n > FT_LONG_MAX )
return FT_THROW( Invalid_Argument );
- if ( FT_NEW_ARRAY( p->name, n ) )
+ if ( FT_QALLOC( p->name, n ) )
goto Exit;
FT_MEM_COPY( (char *)p->name, name, n );
- p->format = format;
- p->builtin = 0;
+ p->format = format;
+ p->builtin = 0;
+ p->value.atom = NULL; /* nothing is ever stored here */
n = _num_bdf_properties + font->nuser_props;
@@ -884,7 +895,7 @@
size_t* propid;
- if ( name == 0 || *name == 0 )
+ if ( name == NULL || *name == 0 )
return 0;
if ( ( propid = ft_hash_str_lookup( name, &(font->proptbl) ) ) == NULL )
@@ -942,15 +953,15 @@
FT_Error error = FT_Err_Ok;
- if ( FT_RENEW_ARRAY( font->comments,
- font->comments_len,
- font->comments_len + len + 1 ) )
+ if ( FT_QRENEW_ARRAY( font->comments,
+ font->comments_len,
+ font->comments_len + len + 1 ) )
goto Exit;
cp = font->comments + font->comments_len;
FT_MEM_COPY( cp, comment, len );
- cp[len] = '\n';
+ cp[len] = '\0';
font->comments_len += len + 1;
@@ -975,7 +986,7 @@
FT_UNUSED( lineno ); /* only used in debug mode */
- if ( font == 0 || font->name == 0 || font->name[0] == 0 )
+ if ( font == NULL || font->name == NULL || font->name[0] == 0 )
{
error = FT_THROW( Invalid_Argument );
goto Exit;
@@ -1159,21 +1170,12 @@
/* Allocate another property if this is overflowing. */
if ( font->props_used == font->props_size )
{
- if ( font->props_size == 0 )
- {
- if ( FT_NEW_ARRAY( font->props, 1 ) )
- goto Exit;
- }
- else
- {
- if ( FT_RENEW_ARRAY( font->props,
- font->props_size,
- font->props_size + 1 ) )
- goto Exit;
- }
+ if ( FT_QRENEW_ARRAY( font->props,
+ font->props_size,
+ font->props_size + 1 ) )
+ goto Exit;
fp = font->props + font->props_size;
- FT_ZERO( fp );
font->props_size++;
}
@@ -1191,8 +1193,8 @@
switch ( prop->format )
{
case BDF_ATOM:
- fp->value.atom = 0;
- if ( value != 0 && value[0] )
+ fp->value.atom = NULL;
+ if ( value && value[0] )
{
if ( FT_STRDUP( fp->value.atom, value ) )
goto Exit;
@@ -1314,15 +1316,18 @@
/* Check for a comment. */
if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
{
- linelen -= 7;
-
- s = line + 7;
- if ( *s != 0 )
+ if ( p->opts->keep_comments )
{
- s++;
- linelen--;
+ linelen -= 7;
+
+ s = line + 7;
+ if ( *s != 0 )
+ {
+ s++;
+ linelen--;
+ }
+ error = _bdf_add_comment( p->font, s, linelen );
}
- error = _bdf_add_comment( p->font, s, linelen );
goto Exit;
}
@@ -1438,7 +1443,7 @@
goto Exit;
}
- if ( FT_NEW_ARRAY( p->glyph_name, slen + 1 ) )
+ if ( FT_QALLOC( p->glyph_name, slen + 1 ) )
goto Exit;
FT_MEM_COPY( p->glyph_name, s, slen + 1 );
@@ -1506,7 +1511,7 @@
{
/* Unencoded glyph. Check whether it should */
/* be added or not. */
- if ( p->opts->keep_unencoded != 0 )
+ if ( p->opts->keep_unencoded )
{
/* Allocate the next unencoded glyph. */
if ( font->unencoded_used == font->unencoded_size )
@@ -1619,20 +1624,20 @@
if ( error )
goto Exit;
- glyph->swidth = (unsigned short)_bdf_atoul( p->list.field[1] );
+ glyph->swidth = _bdf_atous( p->list.field[1] );
p->flags |= BDF_SWIDTH_;
goto Exit;
}
- /* Expect the DWIDTH (scalable width) field next. */
+ /* Expect the DWIDTH (device width) field next. */
if ( _bdf_strncmp( line, "DWIDTH", 6 ) == 0 )
{
error = _bdf_list_split( &p->list, " +", line, linelen );
if ( error )
goto Exit;
- glyph->dwidth = (unsigned short)_bdf_atoul( p->list.field[1] );
+ glyph->dwidth = _bdf_atous( p->list.field[1] );
if ( !( p->flags & BDF_SWIDTH_ ) )
{
@@ -1687,7 +1692,7 @@
/* If the BDF_CORRECT_METRICS flag is set, then adjust the SWIDTH */
/* value if necessary. */
- if ( p->opts->correct_metrics != 0 )
+ if ( p->opts->correct_metrics )
{
/* Determine the point size of the glyph. */
unsigned short sw = (unsigned short)FT_MulDiv(
@@ -1735,7 +1740,7 @@
else
glyph->bytes = (unsigned short)bitmap_size;
- if ( FT_NEW_ARRAY( glyph->bitmap, glyph->bytes ) )
+ if ( FT_ALLOC( glyph->bitmap, glyph->bytes ) )
goto Exit;
p->row = 0;
@@ -1894,7 +1899,7 @@
/* comments before the STARTFONT line for some reason. */
if ( _bdf_strncmp( line, "COMMENT", 7 ) == 0 )
{
- if ( p->opts->keep_comments != 0 && p->font != 0 )
+ if ( p->opts->keep_comments && p->font )
{
linelen -= 7;
@@ -1904,13 +1909,8 @@
s++;
linelen--;
}
-
error = _bdf_add_comment( p->font, s, linelen );
- if ( error )
- goto Exit;
- /* here font is not defined! */
}
-
goto Exit;
}
@@ -1927,14 +1927,13 @@
}
p->flags = BDF_START_;
- font = p->font = 0;
+ font = p->font = NULL;
if ( FT_NEW( font ) )
goto Exit;
p->font = font;
font->memory = p->memory;
- p->memory = 0;
{ /* setup */
size_t i;
@@ -2055,7 +2054,7 @@
/* Allowing multiple `FONT' lines (which is invalid) doesn't hurt... */
FT_FREE( p->font->name );
- if ( FT_NEW_ARRAY( p->font->name, slen + 1 ) )
+ if ( FT_QALLOC( p->font->name, slen + 1 ) )
goto Exit;
FT_MEM_COPY( p->font->name, s, slen + 1 );
@@ -2095,7 +2094,7 @@
unsigned short bpp;
- bpp = (unsigned short)_bdf_atos( p->list.field[4] );
+ bpp = _bdf_atous( p->list.field[4] );
/* Only values 1, 2, 4, 8 are allowed for greymap fonts. */
if ( bpp > 4 )
@@ -2174,34 +2173,32 @@
FT_LOCAL_DEF( FT_Error )
bdf_load_font( FT_Stream stream,
- FT_Memory extmemory,
+ FT_Memory memory,
bdf_options_t* opts,
bdf_font_t* *font )
{
unsigned long lineno = 0; /* make compiler happy */
_bdf_parse_t *p = NULL;
- FT_Memory memory = extmemory; /* needed for FT_NEW */
- FT_Error error = FT_Err_Ok;
+ FT_Error error = FT_Err_Ok;
if ( FT_NEW( p ) )
goto Exit;
- memory = NULL;
- p->opts = (bdf_options_t*)( ( opts != 0 ) ? opts : &_bdf_opts );
+ p->opts = (bdf_options_t*)( opts ? opts : &_bdf_opts );
p->minlb = 32767;
p->size = stream->size;
- p->memory = extmemory; /* only during font creation */
+ p->memory = memory; /* only during font creation */
- _bdf_list_init( &p->list, extmemory );
+ _bdf_list_init( &p->list, memory );
error = _bdf_readstream( stream, _bdf_parse_start,
(void *)p, &lineno );
if ( error )
goto Fail;
- if ( p->font != 0 )
+ if ( p->font )
{
/* If the font is not proportional, set the font's monowidth */
/* field to the width of the font bounding box. */
@@ -2282,22 +2279,7 @@
}
}
- if ( p->font != 0 )
- {
- /* Make sure the comments are NULL terminated if they exist. */
- memory = p->font->memory;
-
- if ( p->font->comments_len > 0 )
- {
- if ( FT_RENEW_ARRAY( p->font->comments,
- p->font->comments_len,
- p->font->comments_len + 1 ) )
- goto Fail;
-
- p->font->comments[p->font->comments_len] = 0;
- }
- }
- else if ( !error )
+ if ( !p->font && !error )
error = FT_THROW( Invalid_File_Format );
*font = p->font;
@@ -2307,8 +2289,6 @@
{
_bdf_list_done( &p->list );
- memory = extmemory;
-
FT_FREE( p->glyph_name );
FT_FREE( p );
}
@@ -2318,8 +2298,6 @@
Fail:
bdf_free_font( p->font );
- memory = extmemory;
-
FT_FREE( p->font );
goto Exit;
@@ -2335,7 +2313,7 @@
FT_Memory memory;
- if ( font == 0 )
+ if ( font == NULL )
return;
memory = font->memory;
@@ -2385,11 +2363,7 @@
/* Free up the user defined properties. */
for ( prop = font->user_props, i = 0;
i < font->nuser_props; i++, prop++ )
- {
FT_FREE( prop->name );
- if ( prop->format == BDF_ATOM )
- FT_FREE( prop->value.atom );
- }
FT_FREE( font->user_props );
@@ -2404,7 +2378,7 @@
size_t* propid;
- if ( font == 0 || font->props_size == 0 || name == 0 || *name == 0 )
+ if ( font == NULL || font->props_size == 0 || name == NULL || *name == 0 )
return 0;
propid = ft_hash_str_lookup( name, (FT_Hash)font->internal );
diff --git a/thirdparty/freetype/src/bdf/module.mk b/thirdparty/freetype/src/bdf/module.mk
deleted file mode 100644
index fe06ae8e06..0000000000
--- a/thirdparty/freetype/src/bdf/module.mk
+++ /dev/null
@@ -1,34 +0,0 @@
-#
-# FreeType 2 BDF module definition
-#
-
-# Copyright 2001, 2002, 2006 by
-# Francesco Zappa Nardelli
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-
-FTMODULE_H_COMMANDS += BDF_DRIVER
-
-define BDF_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, bdf_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)bdf $(ECHO_DRIVER_DESC)bdf bitmap fonts$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/bdf/rules.mk b/thirdparty/freetype/src/bdf/rules.mk
deleted file mode 100644
index d1dd76b1c3..0000000000
--- a/thirdparty/freetype/src/bdf/rules.mk
+++ /dev/null
@@ -1,84 +0,0 @@
-#
-# FreeType 2 bdf driver configuration rules
-#
-
-
-# Copyright (C) 2001, 2002, 2003, 2008 by
-# Francesco Zappa Nardelli
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-
-
-
-# bdf driver directory
-#
-BDF_DIR := $(SRC_DIR)/bdf
-
-
-BDF_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(BDF_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# bdf driver sources (i.e., C files)
-#
-BDF_DRV_SRC := $(BDF_DIR)/bdflib.c \
- $(BDF_DIR)/bdfdrivr.c
-
-
-# bdf driver headers
-#
-BDF_DRV_H := $(BDF_DIR)/bdf.h \
- $(BDF_DIR)/bdfdrivr.h \
- $(BDF_DIR)/bdferror.h
-
-# bdf driver object(s)
-#
-# BDF_DRV_OBJ_M is used during `multi' builds
-# BDF_DRV_OBJ_S is used during `single' builds
-#
-BDF_DRV_OBJ_M := $(BDF_DRV_SRC:$(BDF_DIR)/%.c=$(OBJ_DIR)/%.$O)
-BDF_DRV_OBJ_S := $(OBJ_DIR)/bdf.$O
-
-# bdf driver source file for single build
-#
-BDF_DRV_SRC_S := $(BDF_DIR)/bdf.c
-
-
-# bdf driver - single object
-#
-$(BDF_DRV_OBJ_S): $(BDF_DRV_SRC_S) $(BDF_DRV_SRC) $(FREETYPE_H) $(BDF_DRV_H)
- $(BDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BDF_DRV_SRC_S))
-
-
-# bdf driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(BDF_DIR)/%.c $(FREETYPE_H) $(BDF_DRV_H)
- $(BDF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(BDF_DRV_OBJ_S)
-DRV_OBJS_M += $(BDF_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/bzip2/ftbzip2.c b/thirdparty/freetype/src/bzip2/ftbzip2.c
index 411c5d263b..296cea088b 100644
--- a/thirdparty/freetype/src/bzip2/ftbzip2.c
+++ b/thirdparty/freetype/src/bzip2/ftbzip2.c
@@ -8,7 +8,7 @@
* parse compressed PCF fonts, as found with many X11 server
* distributions.
*
- * Copyright (C) 2010-2020 by
+ * Copyright (C) 2010-2021 by
* Joel Klinghed.
*
* based on `src/gzip/ftgzip.c'
@@ -70,7 +70,7 @@
FT_Pointer p = NULL;
- (void)FT_ALLOC( p, sz );
+ FT_MEM_QALLOC( p, sz );
return p;
}
@@ -327,12 +327,13 @@
FT_ULong count )
{
FT_Error error = FT_Err_Ok;
- FT_ULong delta;
for (;;)
{
- delta = (FT_ULong)( zip->limit - zip->cursor );
+ FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor );
+
+
if ( delta >= count )
delta = count;
@@ -494,7 +495,7 @@
stream->size = 0x7FFFFFFFL; /* don't know the real size! */
stream->pos = 0;
- stream->base = 0;
+ stream->base = NULL;
stream->read = ft_bzip2_stream_io;
stream->close = ft_bzip2_stream_close;
diff --git a/thirdparty/freetype/src/bzip2/rules.mk b/thirdparty/freetype/src/bzip2/rules.mk
deleted file mode 100644
index eed0f4baa4..0000000000
--- a/thirdparty/freetype/src/bzip2/rules.mk
+++ /dev/null
@@ -1,64 +0,0 @@
-#
-# FreeType 2 BZIP2 support configuration rules
-#
-
-# Copyright (C) 2010-2020 by
-# Joel Klinghed.
-#
-# based on `src/lzw/rules.mk'
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# BZIP2 driver directory
-#
-BZIP2_DIR := $(SRC_DIR)/bzip2
-
-
-# compilation flags for the driver
-#
-BZIP2_COMPILE := $(CC) $(ANSIFLAGS) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# BZIP2 support sources (i.e., C files)
-#
-BZIP2_DRV_SRC := $(BZIP2_DIR)/ftbzip2.c
-
-# BZIP2 driver object(s)
-#
-# BZIP2_DRV_OBJ_M is used during `multi' builds
-# BZIP2_DRV_OBJ_S is used during `single' builds
-#
-BZIP2_DRV_OBJ_M := $(OBJ_DIR)/ftbzip2.$O
-BZIP2_DRV_OBJ_S := $(OBJ_DIR)/ftbzip2.$O
-
-# BZIP2 support source file for single build
-#
-BZIP2_DRV_SRC_S := $(BZIP2_DIR)/ftbzip2.c
-
-
-# BZIP2 support - single object
-#
-$(BZIP2_DRV_OBJ_S): $(BZIP2_DRV_SRC_S) $(BZIP2_DRV_SRC) $(FREETYPE_H) $(BZIP2_DRV_H)
- $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(BZIP2_DRV_SRC_S))
-
-
-# BZIP2 support - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(BZIP2_DIR)/%.c $(FREETYPE_H) $(BZIP2_DRV_H)
- $(BZIP2_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(BZIP2_DRV_OBJ_S)
-DRV_OBJS_M += $(BZIP2_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/cache/ftcache.c b/thirdparty/freetype/src/cache/ftcache.c
index e90f4639cb..ddd3e43c02 100644
--- a/thirdparty/freetype/src/cache/ftcache.c
+++ b/thirdparty/freetype/src/cache/ftcache.c
@@ -4,7 +4,7 @@
*
* The FreeType Caching sub-system (body only).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcbasic.c b/thirdparty/freetype/src/cache/ftcbasic.c
index 43ea314d4a..1760c5fbd4 100644
--- a/thirdparty/freetype/src/cache/ftcbasic.c
+++ b/thirdparty/freetype/src/cache/ftcbasic.c
@@ -4,7 +4,7 @@
*
* The FreeType basic cache interface (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -108,12 +108,16 @@
if ( error || !face )
return result;
+#ifdef FT_DEBUG_LEVEL_TRACE
if ( (FT_ULong)face->num_glyphs > FT_UINT_MAX || 0 > face->num_glyphs )
+ {
FT_TRACE1(( "ftc_basic_family_get_count:"
- " the number of glyphs in this face is %ld,\n"
- " "
- " which is too much and thus truncated\n",
+ " the number of glyphs in this face is %ld,\n",
face->num_glyphs ));
+ FT_TRACE1(( " "
+ " which is too much and thus truncated\n" ));
+ }
+#endif
if ( !error )
result = (FT_UInt)face->num_glyphs;
diff --git a/thirdparty/freetype/src/cache/ftccache.c b/thirdparty/freetype/src/cache/ftccache.c
index 1c8e0f3221..5bbf329298 100644
--- a/thirdparty/freetype/src/cache/ftccache.c
+++ b/thirdparty/freetype/src/cache/ftccache.c
@@ -4,7 +4,7 @@
*
* The FreeType internal cache interface (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -90,15 +90,14 @@
ftc_get_top_node_for_hash( FTC_Cache cache,
FT_Offset hash )
{
- FTC_Node* pnode;
FT_Offset idx;
idx = hash & cache->mask;
if ( idx < cache->p )
idx = hash & ( 2 * cache->mask + 1 );
- pnode = cache->buckets + idx;
- return pnode;
+
+ return cache->buckets + idx;
}
#endif /* !FTC_INLINE */
@@ -119,7 +118,7 @@
FT_UFast count = mask + p + 1; /* number of buckets */
- /* do we need to shrink the buckets array? */
+ /* do we need to expand the buckets array? */
if ( cache->slack < 0 )
{
FTC_Node new_list = NULL;
@@ -172,7 +171,7 @@
cache->p = p + 1;
}
- /* do we need to expand the buckets array? */
+ /* do we need to shrink the buckets array? */
else if ( cache->slack > (FT_Long)count * FTC_HASH_SUB_LOAD )
{
FT_UFast old_index = p + mask;
@@ -189,7 +188,7 @@
/* if we can't shrink the array, leave immediately */
- if ( FT_RENEW_ARRAY( cache->buckets,
+ if ( FT_QRENEW_ARRAY( cache->buckets,
( mask + 1 ) * 2, mask + 1 ) )
break;
@@ -341,7 +340,7 @@
cache->mask = FTC_HASH_INITIAL_SIZE - 1;
cache->slack = FTC_HASH_INITIAL_SIZE * FTC_HASH_MAX_LOAD;
- (void)FT_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 );
+ FT_MEM_NEW_ARRAY( cache->buckets, FTC_HASH_INITIAL_SIZE * 2 );
return error;
}
@@ -360,7 +359,7 @@
for ( i = 0; i < count; i++ )
{
- FTC_Node *pnode = cache->buckets + i, next, node = *pnode;
+ FTC_Node node = cache->buckets[i], next;
while ( node )
@@ -417,7 +416,7 @@
FTC_Node node )
{
node->hash = hash;
- node->cache_index = (FT_UInt16)cache->index;
+ node->cache_index = (FT_UShort)cache->index;
node->ref_count = 0;
ftc_node_hash_link( node, cache );
@@ -459,7 +458,7 @@
{
error = cache->clazz.node_new( &node, query, cache );
}
- FTC_CACHE_TRYLOOP_END( NULL );
+ FTC_CACHE_TRYLOOP_END( NULL )
if ( error )
node = NULL;
@@ -528,7 +527,7 @@
goto NewNode;
}
else
- pnode = &((*pnode)->link);
+ pnode = &(*pnode)->link;
}
}
@@ -571,8 +570,7 @@
count = cache->p + cache->mask + 1;
for ( i = 0; i < count; i++ )
{
- FTC_Node* bucket = cache->buckets + i;
- FTC_Node* pnode = bucket;
+ FTC_Node* pnode = cache->buckets + i;
for (;;)
diff --git a/thirdparty/freetype/src/cache/ftccache.h b/thirdparty/freetype/src/cache/ftccache.h
index 11698bb0e9..4849b92352 100644
--- a/thirdparty/freetype/src/cache/ftccache.h
+++ b/thirdparty/freetype/src/cache/ftccache.h
@@ -4,7 +4,7 @@
*
* FreeType internal cache interface (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -251,7 +251,7 @@ FT_BEGIN_HEADER
goto NewNode_; \
} \
else \
- _pnode = &((*_pnode)->link); \
+ _pnode = &(*_pnode)->link; \
} \
} \
\
diff --git a/thirdparty/freetype/src/cache/ftccback.h b/thirdparty/freetype/src/cache/ftccback.h
index 542acb1565..8185fe3738 100644
--- a/thirdparty/freetype/src/cache/ftccback.h
+++ b/thirdparty/freetype/src/cache/ftccback.h
@@ -4,7 +4,7 @@
*
* Callback functions of the caching sub-system (specification only).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftccmap.c b/thirdparty/freetype/src/cache/ftccmap.c
index 468c008cf6..40b449b9cc 100644
--- a/thirdparty/freetype/src/cache/ftccmap.c
+++ b/thirdparty/freetype/src/cache/ftccmap.c
@@ -4,7 +4,7 @@
*
* FreeType CharMap cache (body)
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -273,12 +273,11 @@
if ( error )
goto Exit;
- FT_ASSERT( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first ) <
- FTC_CMAP_INDICES_MAX );
+ FT_ASSERT( char_code - FTC_CMAP_NODE( node )->first <
+ FTC_CMAP_INDICES_MAX );
/* something rotten can happen with rogue clients */
- if ( (FT_UInt)( char_code - FTC_CMAP_NODE( node )->first >=
- FTC_CMAP_INDICES_MAX ) )
+ if ( char_code - FTC_CMAP_NODE( node )->first >= FTC_CMAP_INDICES_MAX )
return 0; /* XXX: should return appropriate error */
gindex = FTC_CMAP_NODE( node )->indices[char_code -
diff --git a/thirdparty/freetype/src/cache/ftcerror.h b/thirdparty/freetype/src/cache/ftcerror.h
index bedfd28371..2c6faf65e2 100644
--- a/thirdparty/freetype/src/cache/ftcerror.h
+++ b/thirdparty/freetype/src/cache/ftcerror.h
@@ -4,7 +4,7 @@
*
* Caching sub-system error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcglyph.c b/thirdparty/freetype/src/cache/ftcglyph.c
index 7f5438aad5..52771c7a8a 100644
--- a/thirdparty/freetype/src/cache/ftcglyph.c
+++ b/thirdparty/freetype/src/cache/ftcglyph.c
@@ -4,7 +4,7 @@
*
* FreeType Glyph Image (FT_Glyph) cache (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcglyph.h b/thirdparty/freetype/src/cache/ftcglyph.h
index 5629545f3c..cf00cdc7b8 100644
--- a/thirdparty/freetype/src/cache/ftcglyph.h
+++ b/thirdparty/freetype/src/cache/ftcglyph.h
@@ -4,7 +4,7 @@
*
* FreeType abstract glyph cache (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcimage.c b/thirdparty/freetype/src/cache/ftcimage.c
index 58ebad8c93..3f12a654b2 100644
--- a/thirdparty/freetype/src/cache/ftcimage.c
+++ b/thirdparty/freetype/src/cache/ftcimage.c
@@ -4,7 +4,7 @@
*
* FreeType Image cache (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcimage.h b/thirdparty/freetype/src/cache/ftcimage.h
index a400788b3c..8b28d6f00b 100644
--- a/thirdparty/freetype/src/cache/ftcimage.h
+++ b/thirdparty/freetype/src/cache/ftcimage.h
@@ -4,7 +4,7 @@
*
* FreeType Generic Image cache (specification)
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcmanag.c b/thirdparty/freetype/src/cache/ftcmanag.c
index 436d41f374..512de8a3fc 100644
--- a/thirdparty/freetype/src/cache/ftcmanag.c
+++ b/thirdparty/freetype/src/cache/ftcmanag.c
@@ -4,7 +4,7 @@
*
* FreeType Cache Manager (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -357,7 +357,7 @@
{
FT_Error error;
FT_Memory memory;
- FTC_Manager manager = 0;
+ FTC_Manager manager = NULL;
if ( !library )
@@ -368,7 +368,7 @@
memory = library->memory;
- if ( FT_NEW( manager ) )
+ if ( FT_QNEW( manager ) )
goto Exit;
if ( max_faces == 0 )
@@ -399,6 +399,10 @@
manager,
memory );
+ manager->nodes_list = NULL;
+ manager->num_nodes = 0;
+ manager->num_caches = 0;
+
*amanager = manager;
Exit:
@@ -593,7 +597,7 @@
goto Exit;
}
- if ( !FT_ALLOC( cache, clazz->cache_size ) )
+ if ( !FT_QALLOC( cache, clazz->cache_size ) )
{
cache->manager = manager;
cache->memory = memory;
diff --git a/thirdparty/freetype/src/cache/ftcmanag.h b/thirdparty/freetype/src/cache/ftcmanag.h
index 6c6ec68545..99aa926369 100644
--- a/thirdparty/freetype/src/cache/ftcmanag.h
+++ b/thirdparty/freetype/src/cache/ftcmanag.h
@@ -4,7 +4,7 @@
*
* FreeType Cache Manager (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcmru.c b/thirdparty/freetype/src/cache/ftcmru.c
index 8feed45f6b..2cac6f9d3a 100644
--- a/thirdparty/freetype/src/cache/ftcmru.c
+++ b/thirdparty/freetype/src/cache/ftcmru.c
@@ -4,7 +4,7 @@
*
* FreeType MRU support (body).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -262,7 +262,7 @@
if ( list->clazz.node_done )
list->clazz.node_done( node, list->data );
}
- else if ( FT_ALLOC( node, list->clazz.node_size ) )
+ else if ( FT_QALLOC( node, list->clazz.node_size ) )
goto Exit;
error = list->clazz.node_init( node, key, list->data );
diff --git a/thirdparty/freetype/src/cache/ftcmru.h b/thirdparty/freetype/src/cache/ftcmru.h
index ac4f9b126d..6befde307f 100644
--- a/thirdparty/freetype/src/cache/ftcmru.h
+++ b/thirdparty/freetype/src/cache/ftcmru.h
@@ -4,7 +4,7 @@
*
* Simple MRU list-cache (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/ftcsbits.c b/thirdparty/freetype/src/cache/ftcsbits.c
index e0db930af8..362999fce0 100644
--- a/thirdparty/freetype/src/cache/ftcsbits.c
+++ b/thirdparty/freetype/src/cache/ftcsbits.c
@@ -4,7 +4,7 @@
*
* FreeType sbits manager (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -52,10 +52,8 @@
pitch = -pitch;
size = (FT_ULong)pitch * bitmap->rows;
- if ( !size )
- return FT_Err_Ok;
- if ( !FT_ALLOC( sbit->buffer, size ) )
+ if ( !FT_QALLOC( sbit->buffer, size ) )
FT_MEM_COPY( sbit->buffer, bitmap->buffer, size );
return error;
@@ -108,13 +106,12 @@
FT_Error error;
FTC_GNode gnode = FTC_GNODE( snode );
FTC_Family family = gnode->family;
- FT_Memory memory = manager->memory;
FT_Face face;
FTC_SBit sbit;
FTC_SFamilyClass clazz;
- if ( (FT_UInt)(gindex - gnode->gindex) >= snode->count )
+ if ( gindex - gnode->gindex >= snode->count )
{
FT_ERROR(( "ftc_snode_load: invalid glyph index" ));
return FT_THROW( Invalid_Argument );
@@ -123,8 +120,6 @@
sbit = snode->sbits + ( gindex - gnode->gindex );
clazz = (FTC_SFamilyClass)family->clazz;
- sbit->buffer = 0;
-
error = clazz->family_load_glyph( family, gindex, manager, &face );
if ( error )
goto BadGlyph;
@@ -143,12 +138,13 @@
goto BadGlyph;
}
- /* Check whether our values fit into 8-bit containers! */
+ /* Check whether our values fit into 8/16-bit containers! */
/* If this is not the case, our bitmap is too large */
/* and we will leave it as `missing' with sbit.buffer = 0 */
#define CHECK_CHAR( d ) ( temp = (FT_Char)d, (FT_Int) temp == (FT_Int) d )
#define CHECK_BYTE( d ) ( temp = (FT_Byte)d, (FT_UInt)temp == (FT_UInt)d )
+#define CHECK_SHRT( d ) ( temp = (FT_Short)d, (FT_Int)temp == (FT_Int) d )
/* horizontal advance in pixels */
xadvance = ( slot->advance.x + 32 ) >> 6;
@@ -156,7 +152,7 @@
if ( !CHECK_BYTE( bitmap->rows ) ||
!CHECK_BYTE( bitmap->width ) ||
- !CHECK_CHAR( bitmap->pitch ) ||
+ !CHECK_SHRT( bitmap->pitch ) ||
!CHECK_CHAR( slot->bitmap_left ) ||
!CHECK_CHAR( slot->bitmap_top ) ||
!CHECK_CHAR( xadvance ) ||
@@ -169,7 +165,7 @@
sbit->width = (FT_Byte)bitmap->width;
sbit->height = (FT_Byte)bitmap->rows;
- sbit->pitch = (FT_Char)bitmap->pitch;
+ sbit->pitch = (FT_Short)bitmap->pitch;
sbit->left = (FT_Char)slot->bitmap_left;
sbit->top = (FT_Char)slot->bitmap_top;
sbit->xadvance = (FT_Char)xadvance;
@@ -177,8 +173,17 @@
sbit->format = (FT_Byte)bitmap->pixel_mode;
sbit->max_grays = (FT_Byte)(bitmap->num_grays - 1);
- /* copy the bitmap into a new buffer -- ignore error */
- error = ftc_sbit_copy_bitmap( sbit, bitmap, memory );
+ if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+ {
+ /* take the bitmap ownership */
+ sbit->buffer = bitmap->buffer;
+ slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+ }
+ else
+ {
+ /* copy the bitmap into a new buffer -- ignore error */
+ error = ftc_sbit_copy_bitmap( sbit, bitmap, manager->memory );
+ }
/* now, compute size */
if ( asize )
@@ -337,8 +342,8 @@
if (list_changed)
*list_changed = FALSE;
- result = FT_BOOL( gnode->family == gquery->family &&
- (FT_UInt)( gindex - gnode->gindex ) < snode->count );
+ result = FT_BOOL( gnode->family == gquery->family &&
+ gindex - gnode->gindex < snode->count );
if ( result )
{
/* check if we need to load the glyph bitmap now */
@@ -390,7 +395,7 @@
{
error = ftc_snode_load( snode, cache->manager, gindex, &size );
}
- FTC_CACHE_TRYLOOP_END( list_changed );
+ FTC_CACHE_TRYLOOP_END( list_changed )
ftcsnode->ref_count--; /* unlock the node */
diff --git a/thirdparty/freetype/src/cache/ftcsbits.h b/thirdparty/freetype/src/cache/ftcsbits.h
index 46f797e724..9f2d5fb33c 100644
--- a/thirdparty/freetype/src/cache/ftcsbits.h
+++ b/thirdparty/freetype/src/cache/ftcsbits.h
@@ -4,7 +4,7 @@
*
* A small-bitmap cache (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cache/rules.mk b/thirdparty/freetype/src/cache/rules.mk
deleted file mode 100644
index 4738b5153a..0000000000
--- a/thirdparty/freetype/src/cache/rules.mk
+++ /dev/null
@@ -1,85 +0,0 @@
-#
-# FreeType 2 Cache configuration rules
-#
-
-
-# Copyright (C) 2000-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# Cache driver directory
-#
-CACHE_DIR := $(SRC_DIR)/cache
-
-
-# compilation flags for the driver
-#
-CACHE_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(CACHE_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# Cache driver sources (i.e., C files)
-#
-CACHE_DRV_SRC := $(CACHE_DIR)/ftcbasic.c \
- $(CACHE_DIR)/ftccache.c \
- $(CACHE_DIR)/ftccmap.c \
- $(CACHE_DIR)/ftcglyph.c \
- $(CACHE_DIR)/ftcimage.c \
- $(CACHE_DIR)/ftcmanag.c \
- $(CACHE_DIR)/ftcmru.c \
- $(CACHE_DIR)/ftcsbits.c
-
-
-# Cache driver headers
-#
-CACHE_DRV_H := $(CACHE_DIR)/ftccache.h \
- $(CACHE_DIR)/ftccback.h \
- $(CACHE_DIR)/ftcerror.h \
- $(CACHE_DIR)/ftcglyph.h \
- $(CACHE_DIR)/ftcimage.h \
- $(CACHE_DIR)/ftcmanag.h \
- $(CACHE_DIR)/ftcmru.h \
- $(CACHE_DIR)/ftcsbits.h
-
-
-# Cache driver object(s)
-#
-# CACHE_DRV_OBJ_M is used during `multi' builds.
-# CACHE_DRV_OBJ_S is used during `single' builds.
-#
-CACHE_DRV_OBJ_M := $(CACHE_DRV_SRC:$(CACHE_DIR)/%.c=$(OBJ_DIR)/%.$O)
-CACHE_DRV_OBJ_S := $(OBJ_DIR)/ftcache.$O
-
-# Cache driver source file for single build
-#
-CACHE_DRV_SRC_S := $(CACHE_DIR)/ftcache.c
-
-
-# Cache driver - single object
-#
-$(CACHE_DRV_OBJ_S): $(CACHE_DRV_SRC_S) $(CACHE_DRV_SRC) \
- $(FREETYPE_H) $(CACHE_DRV_H)
- $(CACHE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CACHE_DRV_SRC_S))
-
-
-# Cache driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(CACHE_DIR)/%.c $(FREETYPE_H) $(CACHE_DRV_H)
- $(CACHE_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(CACHE_DRV_OBJ_S)
-DRV_OBJS_M += $(CACHE_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/cff/cff.c b/thirdparty/freetype/src/cff/cff.c
index 0fa6c87870..c2ffea3d0d 100644
--- a/thirdparty/freetype/src/cff/cff.c
+++ b/thirdparty/freetype/src/cff/cff.c
@@ -4,7 +4,7 @@
*
* FreeType OpenType driver component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffcmap.c b/thirdparty/freetype/src/cff/cffcmap.c
index 6d16ed4226..ff1aae69ef 100644
--- a/thirdparty/freetype/src/cff/cffcmap.c
+++ b/thirdparty/freetype/src/cff/cffcmap.c
@@ -4,7 +4,7 @@
*
* CFF character mapping table (cmap) support (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffcmap.h b/thirdparty/freetype/src/cff/cffcmap.h
index 69fab8dc6c..221e255afb 100644
--- a/thirdparty/freetype/src/cff/cffcmap.h
+++ b/thirdparty/freetype/src/cff/cffcmap.h
@@ -4,7 +4,7 @@
*
* CFF character mapping table (cmap) support (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffdrivr.c b/thirdparty/freetype/src/cff/cffdrivr.c
index 486ab24235..59210f37c5 100644
--- a/thirdparty/freetype/src/cff/cffdrivr.c
+++ b/thirdparty/freetype/src/cff/cffdrivr.c
@@ -4,7 +4,7 @@
*
* OpenType font driver implementation (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -345,8 +345,8 @@
else
{
FT_ERROR(( "cff_get_glyph_name:"
- " cannot get glyph name from a CFF2 font\n"
- " "
+ " cannot get glyph name from a CFF2 font\n" ));
+ FT_ERROR(( " "
" without the `psnames' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
@@ -356,8 +356,8 @@
if ( !font->psnames )
{
FT_ERROR(( "cff_get_glyph_name:"
- " cannot get glyph name from CFF & CEF fonts\n"
- " "
+ " cannot get glyph name from CFF & CEF fonts\n" ));
+ FT_ERROR(( " "
" without the `psnames' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
@@ -412,8 +412,8 @@
else
{
FT_ERROR(( "cff_get_name_index:"
- " cannot get glyph index from a CFF2 font\n"
- " "
+ " cannot get glyph index from a CFF2 font\n" ));
+ FT_ERROR(( " "
" without the `psnames' module\n" ));
return 0;
}
@@ -474,11 +474,11 @@
if ( cff && !cff->font_info )
{
CFF_FontRecDict dict = &cff->top_font.font_dict;
- PS_FontInfoRec *font_info = NULL;
FT_Memory memory = face->root.memory;
+ PS_FontInfoRec* font_info = NULL;
- if ( FT_ALLOC( font_info, sizeof ( *font_info ) ) )
+ if ( FT_QNEW( font_info ) )
goto Fail;
font_info->version = cff_index_get_sid_string( cff,
@@ -515,15 +515,15 @@
FT_Error error = FT_Err_Ok;
- if ( cff && cff->font_extra == NULL )
+ if ( cff && !cff->font_extra )
{
CFF_FontRecDict dict = &cff->top_font.font_dict;
- PS_FontExtraRec* font_extra = NULL;
FT_Memory memory = face->root.memory;
+ PS_FontExtraRec* font_extra = NULL;
FT_String* embedded_postscript;
- if ( FT_ALLOC( font_extra, sizeof ( *font_extra ) ) )
+ if ( FT_QNEW( font_extra ) )
goto Fail;
font_extra->fs_type = 0U;
diff --git a/thirdparty/freetype/src/cff/cffdrivr.h b/thirdparty/freetype/src/cff/cffdrivr.h
index d198dd35cb..fce92bbb00 100644
--- a/thirdparty/freetype/src/cff/cffdrivr.h
+++ b/thirdparty/freetype/src/cff/cffdrivr.h
@@ -4,7 +4,7 @@
*
* High-level OpenType driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cfferrs.h b/thirdparty/freetype/src/cff/cfferrs.h
index 5b00a3f0a2..b507ec8bb7 100644
--- a/thirdparty/freetype/src/cff/cfferrs.h
+++ b/thirdparty/freetype/src/cff/cfferrs.h
@@ -4,7 +4,7 @@
*
* CFF error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffgload.c b/thirdparty/freetype/src/cff/cffgload.c
index feee38a413..97e8f9c1c6 100644
--- a/thirdparty/freetype/src/cff/cffgload.c
+++ b/thirdparty/freetype/src/cff/cffgload.c
@@ -4,7 +4,7 @@
*
* OpenType Glyph Loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -59,7 +59,7 @@
*pointer = (FT_Byte*)data.pointer;
- *length = (FT_ULong)data.length;
+ *length = data.length;
return error;
}
@@ -94,7 +94,7 @@
data.pointer = *pointer;
- data.length = (FT_Int)length;
+ data.length = (FT_UInt)length;
face->root.internal->incremental_interface->funcs->free_glyph_data(
face->root.internal->incremental_interface->object, &data );
diff --git a/thirdparty/freetype/src/cff/cffgload.h b/thirdparty/freetype/src/cff/cffgload.h
index 3b312f452e..d0d6a6fa08 100644
--- a/thirdparty/freetype/src/cff/cffgload.h
+++ b/thirdparty/freetype/src/cff/cffgload.h
@@ -4,7 +4,7 @@
*
* OpenType Glyph Loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffload.c b/thirdparty/freetype/src/cff/cffload.c
index 73d3eecd31..3c3f6fe502 100644
--- a/thirdparty/freetype/src/cff/cffload.c
+++ b/thirdparty/freetype/src/cff/cffload.c
@@ -4,7 +4,7 @@
*
* OpenType and CFF data/program tables loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -356,9 +356,9 @@
data_size = (FT_ULong)( idx->count + 1 ) * offsize;
- if ( FT_NEW_ARRAY( idx->offsets, idx->count + 1 ) ||
- FT_STREAM_SEEK( idx->start + idx->hdr_size ) ||
- FT_FRAME_ENTER( data_size ) )
+ if ( FT_QNEW_ARRAY( idx->offsets, idx->count + 1 ) ||
+ FT_STREAM_SEEK( idx->start + idx->hdr_size ) ||
+ FT_FRAME_ENTER( data_size ) )
goto Exit;
poff = idx->offsets;
@@ -400,7 +400,7 @@
/* Allocate a table containing pointers to an index's elements. */
/* The `pool' argument makes this function convert the index */
- /* entries to C-style strings (this is, NULL-terminated). */
+ /* entries to C-style strings (this is, null-terminated). */
static FT_Error
cff_index_get_pointers( CFF_Index idx,
FT_Byte*** table,
@@ -427,7 +427,7 @@
new_size = idx->data_size + idx->count;
if ( idx->count > 0 &&
- !FT_NEW_ARRAY( tbl, idx->count + 1 ) &&
+ !FT_QNEW_ARRAY( tbl, idx->count + 1 ) &&
( !pool || !FT_ALLOC( new_bytes, new_size ) ) )
{
FT_ULong n, cur_offset;
@@ -622,7 +622,7 @@
FT_Byte* bytes;
FT_ULong byte_len;
FT_Error error;
- FT_String* name = 0;
+ FT_String* name = NULL;
if ( !idx->stream ) /* CFF2 does not include a name index */
@@ -634,10 +634,9 @@
if ( error )
goto Exit;
- if ( !FT_ALLOC( name, byte_len + 1 ) )
+ if ( !FT_QALLOC( name, byte_len + 1 ) )
{
- if ( byte_len )
- FT_MEM_COPY( name, bytes, byte_len );
+ FT_MEM_COPY( name, bytes, byte_len );
name[byte_len] = 0;
}
cff_index_forget_element( idx, &bytes );
@@ -772,8 +771,7 @@
case 3:
/* first, compare to the cache */
- if ( (FT_UInt)( glyph_index - fdselect->cache_first ) <
- fdselect->cache_count )
+ if ( glyph_index - fdselect->cache_first < fdselect->cache_count )
{
fd = fdselect->cache_fd;
break;
@@ -836,7 +834,6 @@
{
FT_Error error = FT_Err_Ok;
FT_UInt i;
- FT_Long j;
FT_UShort max_cid = 0;
@@ -854,9 +851,10 @@
/* When multiple GIDs map to the same CID, we choose the lowest */
/* GID. This is not described in any spec, but it matches the */
- /* behaviour of recent Acroread versions. */
- for ( j = (FT_Long)num_glyphs - 1; j >= 0; j-- )
- charset->cids[charset->sids[j]] = (FT_UShort)j;
+ /* behaviour of recent Acroread versions. The loop stops when */
+ /* the unsigned index wraps around after reaching zero. */
+ for ( i = num_glyphs - 1; i < num_glyphs; i-- )
+ charset->cids[charset->sids[i]] = (FT_UShort)i;
charset->max_cid = max_cid;
charset->num_glyphs = num_glyphs;
@@ -932,7 +930,7 @@
goto Exit;
/* Allocate memory for sids. */
- if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) )
+ if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) )
goto Exit;
/* assign the .notdef glyph */
@@ -1018,14 +1016,14 @@
case 0:
if ( num_glyphs > 229 )
{
- FT_ERROR(( "cff_charset_load: implicit charset larger than\n"
- "predefined charset (Adobe ISO-Latin)\n" ));
+ FT_ERROR(( "cff_charset_load: implicit charset larger than\n" ));
+ FT_ERROR(( "predefined charset (Adobe ISO-Latin)\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* Allocate memory for sids. */
- if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) )
+ if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) )
goto Exit;
/* Copy the predefined charset into the allocated memory. */
@@ -1036,14 +1034,14 @@
case 1:
if ( num_glyphs > 166 )
{
- FT_ERROR(( "cff_charset_load: implicit charset larger than\n"
- "predefined charset (Adobe Expert)\n" ));
+ FT_ERROR(( "cff_charset_load: implicit charset larger than\n" ));
+ FT_ERROR(( "predefined charset (Adobe Expert)\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* Allocate memory for sids. */
- if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) )
+ if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) )
goto Exit;
/* Copy the predefined charset into the allocated memory. */
@@ -1054,14 +1052,14 @@
case 2:
if ( num_glyphs > 87 )
{
- FT_ERROR(( "cff_charset_load: implicit charset larger than\n"
- "predefined charset (Adobe Expert Subset)\n" ));
+ FT_ERROR(( "cff_charset_load: implicit charset larger than\n" ));
+ FT_ERROR(( "predefined charset (Adobe Expert Subset)\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
/* Allocate memory for sids. */
- if ( FT_NEW_ARRAY( charset->sids, num_glyphs ) )
+ if ( FT_QNEW_ARRAY( charset->sids, num_glyphs ) )
goto Exit;
/* Copy the predefined charset into the allocated memory. */
@@ -1087,7 +1085,6 @@
FT_FREE( charset->cids );
charset->format = 0;
charset->offset = 0;
- charset->sids = 0;
}
return error;
@@ -1141,6 +1138,8 @@
{
FT_UInt vsOffset;
FT_UInt format;
+ FT_UInt dataCount;
+ FT_UInt regionCount;
FT_ULong regionListOffset;
@@ -1163,16 +1162,16 @@
}
/* read top level fields */
- if ( FT_READ_ULONG( regionListOffset ) ||
- FT_READ_USHORT( vstore->dataCount ) )
+ if ( FT_READ_ULONG( regionListOffset ) ||
+ FT_READ_USHORT( dataCount ) )
goto Exit;
/* make temporary copy of item variation data offsets; */
/* we'll parse region list first, then come back */
- if ( FT_NEW_ARRAY( dataOffsetArray, vstore->dataCount ) )
+ if ( FT_QNEW_ARRAY( dataOffsetArray, dataCount ) )
goto Exit;
- for ( i = 0; i < vstore->dataCount; i++ )
+ for ( i = 0; i < dataCount; i++ )
{
if ( FT_READ_ULONG( dataOffsetArray[i] ) )
goto Exit;
@@ -1181,20 +1180,24 @@
/* parse regionList and axisLists */
if ( FT_STREAM_SEEK( vsOffset + regionListOffset ) ||
FT_READ_USHORT( vstore->axisCount ) ||
- FT_READ_USHORT( vstore->regionCount ) )
+ FT_READ_USHORT( regionCount ) )
goto Exit;
- if ( FT_NEW_ARRAY( vstore->varRegionList, vstore->regionCount ) )
+ vstore->regionCount = 0;
+ if ( FT_QNEW_ARRAY( vstore->varRegionList, regionCount ) )
goto Exit;
- for ( i = 0; i < vstore->regionCount; i++ )
+ for ( i = 0; i < regionCount; i++ )
{
CFF_VarRegion* region = &vstore->varRegionList[i];
- if ( FT_NEW_ARRAY( region->axisList, vstore->axisCount ) )
+ if ( FT_QNEW_ARRAY( region->axisList, vstore->axisCount ) )
goto Exit;
+ /* keep track of how many axisList to deallocate on error */
+ vstore->regionCount++;
+
for ( j = 0; j < vstore->axisCount; j++ )
{
CFF_AxisCoords* axis = &region->axisList[j];
@@ -1214,10 +1217,11 @@
}
/* use dataOffsetArray now to parse varData items */
- if ( FT_NEW_ARRAY( vstore->varData, vstore->dataCount ) )
+ vstore->dataCount = 0;
+ if ( FT_QNEW_ARRAY( vstore->varData, dataCount ) )
goto Exit;
- for ( i = 0; i < vstore->dataCount; i++ )
+ for ( i = 0; i < dataCount; i++ )
{
CFF_VarData* data = &vstore->varData[i];
@@ -1236,9 +1240,12 @@
if ( FT_READ_USHORT( data->regionIdxCount ) )
goto Exit;
- if ( FT_NEW_ARRAY( data->regionIndices, data->regionIdxCount ) )
+ if ( FT_QNEW_ARRAY( data->regionIndices, data->regionIdxCount ) )
goto Exit;
+ /* keep track of how many regionIndices to deallocate on error */
+ vstore->dataCount++;
+
for ( j = 0; j < data->regionIdxCount; j++ )
{
if ( FT_READ_USHORT( data->regionIndices[j] ) )
@@ -1322,9 +1329,9 @@
/* increase or allocate `blend_stack' and reset `blend_top'; */
/* prepare to append `numBlends' values to the buffer */
- if ( FT_REALLOC( subFont->blend_stack,
- subFont->blend_alloc,
- subFont->blend_alloc + size ) )
+ if ( FT_QREALLOC( subFont->blend_stack,
+ subFont->blend_alloc,
+ subFont->blend_alloc + size ) )
goto Exit;
subFont->blend_top = subFont->blend_stack + subFont->blend_used;
@@ -1437,9 +1444,7 @@
/* prepare buffer for the blend vector */
len = varData->regionIdxCount + 1; /* add 1 for default component */
- if ( FT_REALLOC( blend->BV,
- blend->lenBV * sizeof( *blend->BV ),
- len * sizeof( *blend->BV ) ) )
+ if ( FT_QRENEW_ARRAY( blend->BV, blend->lenBV, len ) )
goto Exit;
blend->lenBV = len;
@@ -1456,10 +1461,8 @@
if ( master == 0 )
{
blend->BV[master] = FT_FIXED_ONE;
- FT_TRACE4(( " build blend vector len %d\n"
- " [ %f ",
- len,
- blend->BV[master] / 65536.0 ));
+ FT_TRACE4(( " build blend vector len %d\n", len ));
+ FT_TRACE4(( " [ %f ", blend->BV[master] / 65536.0 ));
continue;
}
@@ -1543,9 +1546,7 @@
if ( lenNDV != 0 )
{
/* user has set a normalized vector */
- if ( FT_REALLOC( blend->lastNDV,
- blend->lenNDV * sizeof ( *NDV ),
- lenNDV * sizeof ( *NDV ) ) )
+ if ( FT_QRENEW_ARRAY( blend->lastNDV, blend->lenNDV, lenNDV ) )
goto Exit;
FT_MEM_COPY( blend->lastNDV,
@@ -1827,7 +1828,8 @@
/* Construct code to GID mapping from code to SID mapping */
/* and charset. */
- encoding->count = 0;
+ encoding->offset = offset; /* used in cff_face_init */
+ encoding->count = 0;
error = cff_charset_compute_cids( charset, num_glyphs,
stream->memory );
@@ -2363,8 +2365,8 @@
if ( font->name_index.count > 1 )
{
FT_ERROR(( "cff_font_load:"
- " invalid CFF font with multiple subfonts\n"
- " "
+ " invalid CFF font with multiple subfonts\n" ));
+ FT_ERROR(( " "
" in SFNT wrapper\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
diff --git a/thirdparty/freetype/src/cff/cffload.h b/thirdparty/freetype/src/cff/cffload.h
index fc998db2db..20f9296c4f 100644
--- a/thirdparty/freetype/src/cff/cffload.h
+++ b/thirdparty/freetype/src/cff/cffload.h
@@ -4,7 +4,7 @@
*
* OpenType & CFF data/program tables loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffobjs.c b/thirdparty/freetype/src/cff/cffobjs.c
index d555d52358..3a4d47dbdd 100644
--- a/thirdparty/freetype/src/cff/cffobjs.c
+++ b/thirdparty/freetype/src/cff/cffobjs.c
@@ -4,7 +4,7 @@
*
* OpenType objects manager (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -283,6 +283,8 @@
cff_size_request( FT_Size size,
FT_Size_Request req )
{
+ FT_Error error;
+
CFF_Size cffsize = (CFF_Size)size;
PSH_Globals_Funcs funcs;
@@ -304,7 +306,9 @@
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
- FT_Request_Metrics( size->face, req );
+ error = FT_Request_Metrics( size->face, req );
+ if ( error )
+ goto Exit;
funcs = cff_size_get_globals_funcs( cffsize );
@@ -345,7 +349,8 @@
}
}
- return FT_Err_Ok;
+ Exit:
+ return error;
}
@@ -659,8 +664,8 @@
if ( dict->cid_registry == 0xFFFFU && !psnames )
{
FT_ERROR(( "cff_face_init:"
- " cannot open CFF & CEF fonts\n"
- " "
+ " cannot open CFF & CEF fonts\n" ));
+ FT_ERROR(( " "
" without the `psnames' module\n" ));
error = FT_THROW( Missing_Module );
goto Exit;
@@ -684,13 +689,13 @@
/* In Multiple Master CFFs, two SIDs hold the Normalize Design */
/* Vector (NDV) and Convert Design Vector (CDV) charstrings, */
- /* which may contain NULL bytes in the middle of the data, too. */
+ /* which may contain null bytes in the middle of the data, too. */
/* We thus access `cff->strings' directly. */
for ( idx = 1; idx < cff->num_strings; idx++ )
{
FT_Byte* s1 = cff->strings[idx - 1];
FT_Byte* s2 = cff->strings[idx];
- FT_PtrDist s1len = s2 - s1 - 1; /* without the final NULL byte */
+ FT_PtrDist s1len = s2 - s1 - 1; /* without the final null byte */
FT_PtrDist l;
@@ -1049,11 +1054,11 @@
{
FT_CharMapRec cmaprec;
FT_CharMap cmap;
- FT_UInt nn;
+ FT_Int nn;
CFF_Encoding encoding = &cff->encoding;
- for ( nn = 0; nn < (FT_UInt)cffface->num_charmaps; nn++ )
+ for ( nn = 0; nn < cffface->num_charmaps; nn++ )
{
cmap = cffface->charmaps[nn];
@@ -1078,7 +1083,7 @@
cmaprec.encoding_id = TT_MS_ID_UNICODE_CS;
cmaprec.encoding = FT_ENCODING_UNICODE;
- nn = (FT_UInt)cffface->num_charmaps;
+ nn = cffface->num_charmaps;
error = FT_CMap_New( &cff_cmap_unicode_class_rec, NULL,
&cmaprec, NULL );
@@ -1089,7 +1094,7 @@
error = FT_Err_Ok;
/* if no Unicode charmap was previously selected, select this one */
- if ( !cffface->charmap && nn != (FT_UInt)cffface->num_charmaps )
+ if ( !cffface->charmap && nn != cffface->num_charmaps )
cffface->charmap = cffface->charmaps[nn];
Skip_Unicode:
@@ -1174,11 +1179,7 @@
/* set default property values, cf. `ftcffdrv.h' */
-#ifdef CFF_CONFIG_OPTION_OLD_ENGINE
- driver->hinting_engine = FT_HINTING_FREETYPE;
-#else
driver->hinting_engine = FT_HINTING_ADOBE;
-#endif
driver->no_stem_darkening = TRUE;
diff --git a/thirdparty/freetype/src/cff/cffobjs.h b/thirdparty/freetype/src/cff/cffobjs.h
index 845bd90941..149a8a2f0a 100644
--- a/thirdparty/freetype/src/cff/cffobjs.h
+++ b/thirdparty/freetype/src/cff/cffobjs.h
@@ -4,7 +4,7 @@
*
* OpenType objects manager (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cffparse.c b/thirdparty/freetype/src/cff/cffparse.c
index 69bcd5d957..dde55e95c2 100644
--- a/thirdparty/freetype/src/cff/cffparse.c
+++ b/thirdparty/freetype/src/cff/cffparse.c
@@ -4,7 +4,7 @@
*
* CFF token stream parser (body)
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -62,7 +62,7 @@
parser->num_axes = num_axes;
/* allocate the stack buffer */
- if ( FT_NEW_ARRAY( parser->stack, stackSize ) )
+ if ( FT_QNEW_ARRAY( parser->stack, stackSize ) )
{
FT_FREE( parser->stack );
goto Exit;
@@ -713,9 +713,10 @@
( max_scaling - min_scaling ) > 9 )
{
FT_TRACE1(( "cff_parse_font_matrix:"
- " strange scaling values (minimum %ld, maximum %ld),\n"
- " "
- " using default matrix\n", min_scaling, max_scaling ));
+ " strange scaling values (minimum %ld, maximum %ld),\n",
+ min_scaling, max_scaling ));
+ FT_TRACE1(( " "
+ " using default matrix\n" ));
goto Unlikely;
}
@@ -1515,6 +1516,7 @@
case cff_kind_fixed_thousand:
FT_TRACE4(( " %f\n", (double)val / 65536 / 1000 ));
+ break;
default:
; /* never reached */
diff --git a/thirdparty/freetype/src/cff/cffparse.h b/thirdparty/freetype/src/cff/cffparse.h
index 6f3fbb37d6..a28ab52200 100644
--- a/thirdparty/freetype/src/cff/cffparse.h
+++ b/thirdparty/freetype/src/cff/cffparse.h
@@ -4,7 +4,7 @@
*
* CFF token stream parser (specification)
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/cfftoken.h b/thirdparty/freetype/src/cff/cfftoken.h
index 4c6a53eec1..eef30690c4 100644
--- a/thirdparty/freetype/src/cff/cfftoken.h
+++ b/thirdparty/freetype/src/cff/cfftoken.h
@@ -4,7 +4,7 @@
*
* CFF token definitions (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cff/module.mk b/thirdparty/freetype/src/cff/module.mk
deleted file mode 100644
index bd728c6a34..0000000000
--- a/thirdparty/freetype/src/cff/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 CFF module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += CFF_DRIVER
-
-define CFF_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, cff_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)cff $(ECHO_DRIVER_DESC)OpenType fonts with extension *.otf$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/cff/rules.mk b/thirdparty/freetype/src/cff/rules.mk
deleted file mode 100644
index 70bb92d506..0000000000
--- a/thirdparty/freetype/src/cff/rules.mk
+++ /dev/null
@@ -1,75 +0,0 @@
-#
-# FreeType 2 OpenType/CFF driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# OpenType driver directory
-#
-CFF_DIR := $(SRC_DIR)/cff
-
-
-CFF_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(CFF_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# CFF driver sources (i.e., C files)
-#
-CFF_DRV_SRC := $(CFF_DIR)/cffcmap.c \
- $(CFF_DIR)/cffdrivr.c \
- $(CFF_DIR)/cffgload.c \
- $(CFF_DIR)/cffload.c \
- $(CFF_DIR)/cffobjs.c \
- $(CFF_DIR)/cffparse.c
-
-
-# CFF driver headers
-#
-CFF_DRV_H := $(CFF_DRV_SRC:%.c=%.h) \
- $(CFF_DIR)/cfferrs.h \
- $(CFF_DIR)/cfftoken.h
-
-
-# CFF driver object(s)
-#
-# CFF_DRV_OBJ_M is used during `multi' builds
-# CFF_DRV_OBJ_S is used during `single' builds
-#
-CFF_DRV_OBJ_M := $(CFF_DRV_SRC:$(CFF_DIR)/%.c=$(OBJ_DIR)/%.$O)
-CFF_DRV_OBJ_S := $(OBJ_DIR)/cff.$O
-
-# CFF driver source file for single build
-#
-CFF_DRV_SRC_S := $(CFF_DIR)/cff.c
-
-
-# CFF driver - single object
-#
-$(CFF_DRV_OBJ_S): $(CFF_DRV_SRC_S) $(CFF_DRV_SRC) $(FREETYPE_H) $(CFF_DRV_H)
- $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CFF_DRV_SRC_S))
-
-
-# CFF driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(CFF_DIR)/%.c $(FREETYPE_H) $(CFF_DRV_H)
- $(CFF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(CFF_DRV_OBJ_S)
-DRV_OBJS_M += $(CFF_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/cid/ciderrs.h b/thirdparty/freetype/src/cid/ciderrs.h
index f698bb2293..2d762d9e1d 100644
--- a/thirdparty/freetype/src/cid/ciderrs.h
+++ b/thirdparty/freetype/src/cid/ciderrs.h
@@ -4,7 +4,7 @@
*
* CID error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/cidgload.c b/thirdparty/freetype/src/cid/cidgload.c
index 54aa62f810..a46d063dfe 100644
--- a/thirdparty/freetype/src/cid/cidgload.c
+++ b/thirdparty/freetype/src/cid/cidgload.c
@@ -4,7 +4,7 @@
*
* CID-keyed Type1 Glyph Loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -63,7 +63,7 @@
#endif
- FT_TRACE1(( "cid_load_glyph: glyph index %d\n", glyph_index ));
+ FT_TRACE1(( "cid_load_glyph: glyph index %u\n", glyph_index ));
#ifdef FT_CONFIG_OPTION_INCREMENTAL
@@ -76,20 +76,17 @@
error = inc->funcs->get_glyph_data( inc->object,
glyph_index, &glyph_data );
- if ( error )
+ if ( error || glyph_data.length < cid->fd_bytes )
goto Exit;
p = (FT_Byte*)glyph_data.pointer;
- fd_select = cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
+ fd_select = cid_get_offset( &p, cid->fd_bytes );
- if ( glyph_data.length != 0 )
- {
- glyph_length = (FT_ULong)( glyph_data.length - cid->fd_bytes );
- (void)FT_ALLOC( charstring, glyph_length );
- if ( !error )
- ft_memcpy( charstring, glyph_data.pointer + cid->fd_bytes,
+ glyph_length = glyph_data.length - cid->fd_bytes;
+
+ if ( !FT_QALLOC( charstring, glyph_length ) )
+ FT_MEM_COPY( charstring, glyph_data.pointer + cid->fd_bytes,
glyph_length );
- }
inc->funcs->free_glyph_data( inc->object, &glyph_data );
@@ -104,7 +101,7 @@
/* For ordinary fonts read the CID font dictionary index */
/* and charstring offset from the CIDMap. */
{
- FT_UInt entry_len = (FT_UInt)( cid->fd_bytes + cid->gd_bytes );
+ FT_UInt entry_len = cid->fd_bytes + cid->gd_bytes;
FT_ULong off1, off2;
@@ -114,15 +111,15 @@
goto Exit;
p = (FT_Byte*)stream->cursor;
- fd_select = cid_get_offset( &p, (FT_Byte)cid->fd_bytes );
- off1 = cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
+ fd_select = cid_get_offset( &p, cid->fd_bytes );
+ off1 = cid_get_offset( &p, cid->gd_bytes );
p += cid->fd_bytes;
- off2 = cid_get_offset( &p, (FT_Byte)cid->gd_bytes );
+ off2 = cid_get_offset( &p, cid->gd_bytes );
FT_FRAME_EXIT();
- if ( fd_select >= (FT_ULong)cid->num_dicts ||
- off2 > stream->size ||
- off1 > off2 )
+ if ( fd_select >= cid->num_dicts ||
+ off2 > stream->size ||
+ off1 > off2 )
{
FT_TRACE0(( "cid_load_glyph: invalid glyph stream offsets\n" ));
error = FT_THROW( Invalid_Offset );
@@ -130,11 +127,10 @@
}
glyph_length = off2 - off1;
- if ( glyph_length == 0 )
- goto Exit;
- if ( FT_ALLOC( charstring, glyph_length ) )
- goto Exit;
- if ( FT_STREAM_READ_AT( cid->data_offset + off1,
+
+ if ( glyph_length == 0 ||
+ FT_QALLOC( charstring, glyph_length ) ||
+ FT_STREAM_READ_AT( cid->data_offset + off1,
charstring, glyph_length ) )
goto Exit;
}
diff --git a/thirdparty/freetype/src/cid/cidgload.h b/thirdparty/freetype/src/cid/cidgload.h
index da36e37e06..8b515efa01 100644
--- a/thirdparty/freetype/src/cid/cidgload.h
+++ b/thirdparty/freetype/src/cid/cidgload.h
@@ -4,7 +4,7 @@
*
* OpenType Glyph Loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/cidload.c b/thirdparty/freetype/src/cid/cidload.c
index bb9136a3df..496219de80 100644
--- a/thirdparty/freetype/src/cid/cidload.c
+++ b/thirdparty/freetype/src/cid/cidload.c
@@ -4,7 +4,7 @@
*
* CID-keyed Type1 font loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -41,7 +41,7 @@
/* read a single offset */
FT_LOCAL_DEF( FT_ULong )
cid_get_offset( FT_Byte* *start,
- FT_Byte offsize )
+ FT_UInt offsize )
{
FT_ULong result;
FT_Byte* p = *start;
@@ -113,7 +113,7 @@
CID_FaceDict dict;
- if ( parser->num_dict < 0 || parser->num_dict >= cid->num_dicts )
+ if ( parser->num_dict >= cid->num_dicts )
{
FT_ERROR(( "cid_load_keyword: invalid use of `%s'\n",
keyword->ident ));
@@ -164,7 +164,7 @@
FT_Fixed temp_scale;
- if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
+ if ( parser->num_dict < face->cid.num_dicts )
{
FT_Matrix* matrix;
FT_Vector* offset;
@@ -244,11 +244,11 @@
FT_Memory memory = face->root.memory;
FT_Stream stream = parser->stream;
FT_Error error = FT_Err_Ok;
- FT_Long num_dicts;
+ FT_Long num_dicts, max_dicts;
num_dicts = cid_parser_to_int( parser );
- if ( num_dicts < 0 )
+ if ( num_dicts < 0 || num_dicts > FT_INT_MAX )
{
FT_ERROR(( "parse_fd_array: invalid number of dictionaries\n" ));
goto Exit;
@@ -272,18 +272,18 @@
* need a `dup X' at the very beginning and a `put' at the end, so a
* rough guess using 100 bytes as the minimum is justified.
*/
- if ( (FT_ULong)num_dicts > stream->size / 100 )
+ max_dicts = (FT_Long)( stream->size / 100 );
+ if ( num_dicts > max_dicts )
{
FT_TRACE0(( "parse_fd_array: adjusting FDArray size"
" (from %ld to %ld)\n",
- num_dicts,
- stream->size / 100 ));
- num_dicts = (FT_Long)( stream->size / 100 );
+ num_dicts, max_dicts ));
+ num_dicts = max_dicts;
}
if ( !cid->font_dicts )
{
- FT_Int n;
+ FT_UInt n;
if ( FT_NEW_ARRAY( cid->font_dicts, num_dicts ) )
@@ -322,7 +322,7 @@
CID_FaceDict dict;
- if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
+ if ( parser->num_dict < face->cid.num_dicts )
{
dict = face->cid.font_dicts + parser->num_dict;
@@ -345,7 +345,7 @@
CID_Parser* parser )
{
#ifdef FT_DEBUG_LEVEL_TRACE
- if ( parser->num_dict >= 0 && parser->num_dict < face->cid.num_dicts )
+ if ( parser->num_dict < face->cid.num_dicts )
{
T1_TokenRec token;
FT_UInt len;
@@ -427,7 +427,7 @@
parser->num_dict++;
#ifdef FT_DEBUG_LEVEL_TRACE
- FT_TRACE4(( " FontDict %d", parser->num_dict ));
+ FT_TRACE4(( " FontDict %u", parser->num_dict ));
if ( parser->num_dict > face->cid.num_dicts )
FT_TRACE4(( " (ignored)" ));
FT_TRACE4(( "\n" ));
@@ -517,7 +517,7 @@
FT_Memory memory = face->root.memory;
FT_Stream stream = face->cid_stream;
FT_Error error;
- FT_Int n;
+ FT_UInt n;
CID_Subrs subr;
FT_UInt max_offsets = 0;
FT_ULong* offsets = NULL;
@@ -552,20 +552,20 @@
goto Fail;
}
- if ( FT_RENEW_ARRAY( offsets, max_offsets, new_max ) )
+ if ( FT_QRENEW_ARRAY( offsets, max_offsets, new_max ) )
goto Fail;
max_offsets = new_max;
}
/* read the subrmap's offsets */
- if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) ||
- FT_FRAME_ENTER( ( num_subrs + 1 ) * (FT_UInt)dict->sd_bytes ) )
+ if ( FT_STREAM_SEEK( cid->data_offset + dict->subrmap_offset ) ||
+ FT_FRAME_ENTER( ( num_subrs + 1 ) * dict->sd_bytes ) )
goto Fail;
p = (FT_Byte*)stream->cursor;
for ( count = 0; count <= num_subrs; count++ )
- offsets[count] = cid_get_offset( &p, (FT_Byte)dict->sd_bytes );
+ offsets[count] = cid_get_offset( &p, dict->sd_bytes );
FT_FRAME_EXIT();
@@ -589,12 +589,12 @@
/* allocate, and read them */
data_len = offsets[num_subrs] - offsets[0];
- if ( FT_NEW_ARRAY( subr->code, num_subrs + 1 ) ||
- FT_ALLOC( subr->code[0], data_len ) )
+ if ( FT_QNEW_ARRAY( subr->code, num_subrs + 1 ) ||
+ FT_QALLOC( subr->code[0], data_len ) )
goto Fail;
if ( FT_STREAM_SEEK( cid->data_offset + offsets[0] ) ||
- FT_STREAM_READ( subr->code[0], data_len ) )
+ FT_STREAM_READ( subr->code[0], data_len ) )
goto Fail;
/* set up pointers */
@@ -665,17 +665,18 @@
static FT_Error
- cid_hex_to_binary( FT_Byte* data,
- FT_ULong data_len,
- FT_ULong offset,
- CID_Face face )
+ cid_hex_to_binary( FT_Byte* data,
+ FT_ULong data_len,
+ FT_ULong offset,
+ CID_Face face,
+ FT_ULong* data_written )
{
FT_Stream stream = face->root.stream;
FT_Error error;
FT_Byte buffer[256];
FT_Byte *p, *plimit;
- FT_Byte *d, *dlimit;
+ FT_Byte *d = data, *dlimit;
FT_Byte val;
FT_Bool upper_nibble, done;
@@ -684,7 +685,6 @@
if ( FT_STREAM_SEEK( offset ) )
goto Exit;
- d = data;
dlimit = d + data_len;
p = buffer;
plimit = p;
@@ -758,6 +758,7 @@
error = FT_Err_Ok;
Exit:
+ *data_written = (FT_ULong)( d - data );
return error;
}
@@ -770,12 +771,11 @@
CID_Parser* parser;
FT_Memory memory = face->root.memory;
FT_Error error;
- FT_Int n;
+ FT_UInt n;
CID_FaceInfo cid = &face->cid;
FT_ULong binary_length;
- FT_ULong entry_len;
cid_init_loader( &loader, face );
@@ -803,8 +803,8 @@
if ( parser->binary_length >
face->root.stream->size - parser->data_offset )
{
- FT_TRACE0(( "cid_face_open: adjusting length of binary data\n"
- " (from %ld to %ld bytes)\n",
+ FT_TRACE0(( "cid_face_open: adjusting length of binary data\n" ));
+ FT_TRACE0(( " (from %lu to %lu bytes)\n",
parser->binary_length,
face->root.stream->size - parser->data_offset ));
parser->binary_length = face->root.stream->size -
@@ -812,15 +812,16 @@
}
/* we must convert the data section from hexadecimal to binary */
- if ( FT_ALLOC( face->binary_data, parser->binary_length ) ||
+ if ( FT_QALLOC( face->binary_data, parser->binary_length ) ||
FT_SET_ERROR( cid_hex_to_binary( face->binary_data,
parser->binary_length,
parser->data_offset,
- face ) ) )
+ face,
+ &binary_length ) ) )
goto Exit;
FT_Stream_OpenMemory( face->cid_stream,
- face->binary_data, parser->binary_length );
+ face->binary_data, binary_length );
cid->data_offset = 0;
}
else
@@ -831,10 +832,10 @@
/* sanity tests */
- if ( cid->fd_bytes < 0 || cid->gd_bytes < 1 )
+ if ( cid->gd_bytes == 0 )
{
FT_ERROR(( "cid_face_open:"
- " Invalid `FDBytes' or `GDBytes' value\n" ));
+ " Invalid `GDBytes' value\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
@@ -843,15 +844,32 @@
if ( cid->fd_bytes > 4 || cid->gd_bytes > 4 )
{
FT_ERROR(( "cid_face_open:"
- " Values of `FDBytes' or `GDBytes' larger than 4\n"
- " "
+ " Values of `FDBytes' or `GDBytes' larger than 4\n" ));
+ FT_ERROR(( " "
" are not supported\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
binary_length = face->cid_stream->size - cid->data_offset;
- entry_len = (FT_ULong)( cid->fd_bytes + cid->gd_bytes );
+
+ if ( cid->cidmap_offset > binary_length )
+ {
+ FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
+ /* the initial pre-check prevents the multiplication overflow */
+ if ( cid->cid_count > FT_ULONG_MAX / 8 ||
+ cid->cid_count * ( cid->fd_bytes + cid->gd_bytes ) >
+ binary_length - cid->cidmap_offset )
+ {
+ FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" ));
+ error = FT_THROW( Invalid_File_Format );
+ goto Exit;
+ }
+
for ( n = 0; n < cid->num_dicts; n++ )
{
@@ -877,8 +895,7 @@
dict->private_dict.blue_fuzz = 1;
}
- if ( dict->sd_bytes < 0 ||
- ( dict->num_subrs && dict->sd_bytes < 1 ) )
+ if ( dict->num_subrs && dict->sd_bytes == 0 )
{
FT_ERROR(( "cid_face_open: Invalid `SDBytes' value\n" ));
error = FT_THROW( Invalid_File_Format );
@@ -901,11 +918,10 @@
goto Exit;
}
- /* `num_subrs' is scanned as a signed integer */
- if ( (FT_Int)dict->num_subrs < 0 ||
- ( dict->sd_bytes &&
- dict->num_subrs > ( binary_length - dict->subrmap_offset ) /
- (FT_UInt)dict->sd_bytes ) )
+ /* the initial pre-check prevents the multiplication overflow */
+ if ( dict->num_subrs > FT_UINT_MAX / 4 ||
+ dict->num_subrs * dict->sd_bytes >
+ binary_length - dict->subrmap_offset )
{
FT_ERROR(( "cid_face_open: Invalid `SubrCount' value\n" ));
error = FT_THROW( Invalid_File_Format );
@@ -913,22 +929,6 @@
}
}
- if ( cid->cidmap_offset > binary_length )
- {
- FT_ERROR(( "cid_face_open: Invalid `CIDMapOffset' value\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Exit;
- }
-
- if ( entry_len &&
- cid->cid_count >
- ( binary_length - cid->cidmap_offset ) / entry_len )
- {
- FT_ERROR(( "cid_face_open: Invalid `CIDCount' value\n" ));
- error = FT_THROW( Invalid_File_Format );
- goto Exit;
- }
-
/* we can now safely proceed */
error = cid_read_subrs( face );
diff --git a/thirdparty/freetype/src/cid/cidload.h b/thirdparty/freetype/src/cid/cidload.h
index 06fb9ef476..ee1d486505 100644
--- a/thirdparty/freetype/src/cid/cidload.h
+++ b/thirdparty/freetype/src/cid/cidload.h
@@ -4,7 +4,7 @@
*
* CID-keyed Type1 font loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -37,7 +37,7 @@ FT_BEGIN_HEADER
FT_LOCAL( FT_ULong )
cid_get_offset( FT_Byte** start,
- FT_Byte offsize );
+ FT_UInt offsize );
FT_LOCAL( FT_Error )
cid_face_open( CID_Face face,
diff --git a/thirdparty/freetype/src/cid/cidobjs.c b/thirdparty/freetype/src/cid/cidobjs.c
index 04b295eb8f..e3c29c22f6 100644
--- a/thirdparty/freetype/src/cid/cidobjs.c
+++ b/thirdparty/freetype/src/cid/cidobjs.c
@@ -4,7 +4,7 @@
*
* CID objects manager (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -157,10 +157,14 @@
cid_size_request( FT_Size size,
FT_Size_Request req )
{
+ FT_Error error;
+
PSH_Globals_Funcs funcs;
- FT_Request_Metrics( size->face, req );
+ error = FT_Request_Metrics( size->face, req );
+ if ( error )
+ goto Exit;
funcs = cid_size_get_globals_funcs( (CID_Size)size );
@@ -170,7 +174,8 @@
size->metrics.y_scale,
0, 0 );
- return FT_Err_Ok;
+ Exit:
+ return error;
}
@@ -211,7 +216,7 @@
/* release subrs */
if ( face->subrs )
{
- FT_Int n;
+ FT_UInt n;
for ( n = 0; n < cid->num_dicts; n++ )
@@ -479,11 +484,7 @@
/* set default property values, cf. `ftt1drv.h' */
-#ifdef T1_CONFIG_OPTION_OLD_ENGINE
- driver->hinting_engine = FT_HINTING_FREETYPE;
-#else
driver->hinting_engine = FT_HINTING_ADOBE;
-#endif
driver->no_stem_darkening = TRUE;
diff --git a/thirdparty/freetype/src/cid/cidobjs.h b/thirdparty/freetype/src/cid/cidobjs.h
index 6ae3061379..32f59cbcce 100644
--- a/thirdparty/freetype/src/cid/cidobjs.h
+++ b/thirdparty/freetype/src/cid/cidobjs.h
@@ -4,7 +4,7 @@
*
* CID objects manager (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/cidparse.c b/thirdparty/freetype/src/cid/cidparse.c
index 1fc098b448..852c9b6b96 100644
--- a/thirdparty/freetype/src/cid/cidparse.c
+++ b/thirdparty/freetype/src/cid/cidparse.c
@@ -4,7 +4,7 @@
*
* CID-keyed Type1 parser (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -73,7 +73,11 @@
/* first of all, check the font format in the header */
if ( FT_FRAME_ENTER( 31 ) )
+ {
+ FT_TRACE2(( " not a CID-keyed font\n" ));
+ error = FT_THROW( Unknown_File_Format );
goto Exit;
+ }
if ( ft_strncmp( (char *)stream->cursor,
"%!PS-Adobe-3.0 Resource-CIDFont", 31 ) )
@@ -181,7 +185,7 @@
parser->root.base = parser->postscript;
parser->root.cursor = parser->postscript;
parser->root.limit = parser->root.cursor + ps_len;
- parser->num_dict = -1;
+ parser->num_dict = FT_UINT_MAX;
/* Finally, we check whether `StartData' or `/sfnts' was real -- */
/* it could be in a comment or string. We also get the arguments */
diff --git a/thirdparty/freetype/src/cid/cidparse.h b/thirdparty/freetype/src/cid/cidparse.h
index 0b49bebf48..fbc437bc38 100644
--- a/thirdparty/freetype/src/cid/cidparse.h
+++ b/thirdparty/freetype/src/cid/cidparse.h
@@ -4,7 +4,7 @@
*
* CID-keyed Type1 parser (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -78,7 +78,7 @@ FT_BEGIN_HEADER
FT_ULong binary_length;
CID_FaceInfo cid;
- FT_Int num_dict;
+ FT_UInt num_dict;
} CID_Parser;
diff --git a/thirdparty/freetype/src/cid/cidriver.c b/thirdparty/freetype/src/cid/cidriver.c
index d08cea1d7e..a0898dfa2f 100644
--- a/thirdparty/freetype/src/cid/cidriver.c
+++ b/thirdparty/freetype/src/cid/cidriver.c
@@ -4,7 +4,7 @@
*
* CID driver interface (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/cidriver.h b/thirdparty/freetype/src/cid/cidriver.h
index 0fc8ed37bf..3ff5f78e11 100644
--- a/thirdparty/freetype/src/cid/cidriver.h
+++ b/thirdparty/freetype/src/cid/cidriver.h
@@ -4,7 +4,7 @@
*
* High-level CID driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/cidtoken.h b/thirdparty/freetype/src/cid/cidtoken.h
index e9f068bb50..84c8258014 100644
--- a/thirdparty/freetype/src/cid/cidtoken.h
+++ b/thirdparty/freetype/src/cid/cidtoken.h
@@ -4,7 +4,7 @@
*
* CID token definitions (specification only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/cid/module.mk b/thirdparty/freetype/src/cid/module.mk
deleted file mode 100644
index 9fb02235e6..0000000000
--- a/thirdparty/freetype/src/cid/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 CID module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += TYPE1CID_DRIVER
-
-define TYPE1CID_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, t1cid_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)cid $(ECHO_DRIVER_DESC)Postscript CID-keyed fonts, no known extension$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/cid/rules.mk b/thirdparty/freetype/src/cid/rules.mk
deleted file mode 100644
index 94f663c80e..0000000000
--- a/thirdparty/freetype/src/cid/rules.mk
+++ /dev/null
@@ -1,73 +0,0 @@
-#
-# FreeType 2 CID driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# CID driver directory
-#
-CID_DIR := $(SRC_DIR)/cid
-
-
-CID_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(CID_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# CID driver sources (i.e., C files)
-#
-CID_DRV_SRC := $(CID_DIR)/cidparse.c \
- $(CID_DIR)/cidload.c \
- $(CID_DIR)/cidriver.c \
- $(CID_DIR)/cidgload.c \
- $(CID_DIR)/cidobjs.c
-
-# CID driver headers
-#
-CID_DRV_H := $(CID_DRV_SRC:%.c=%.h) \
- $(CID_DIR)/cidtoken.h \
- $(CID_DIR)/ciderrs.h
-
-
-# CID driver object(s)
-#
-# CID_DRV_OBJ_M is used during `multi' builds
-# CID_DRV_OBJ_S is used during `single' builds
-#
-CID_DRV_OBJ_M := $(CID_DRV_SRC:$(CID_DIR)/%.c=$(OBJ_DIR)/%.$O)
-CID_DRV_OBJ_S := $(OBJ_DIR)/type1cid.$O
-
-# CID driver source file for single build
-#
-CID_DRV_SRC_S := $(CID_DIR)/type1cid.c
-
-
-# CID driver - single object
-#
-$(CID_DRV_OBJ_S): $(CID_DRV_SRC_S) $(CID_DRV_SRC) $(FREETYPE_H) $(CID_DRV_H)
- $(CID_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(CID_DRV_SRC_S))
-
-
-# CID driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(CID_DIR)/%.c $(FREETYPE_H) $(CID_DRV_H)
- $(CID_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(CID_DRV_OBJ_S)
-DRV_OBJS_M += $(CID_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/cid/type1cid.c b/thirdparty/freetype/src/cid/type1cid.c
index 082e8bfe5b..5405ecffc8 100644
--- a/thirdparty/freetype/src/cid/type1cid.c
+++ b/thirdparty/freetype/src/cid/type1cid.c
@@ -4,7 +4,7 @@
*
* FreeType OpenType driver component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/gxvalid/README b/thirdparty/freetype/src/gxvalid/README
index 2a32bab204..7fb0296282 100644
--- a/thirdparty/freetype/src/gxvalid/README
+++ b/thirdparty/freetype/src/gxvalid/README
@@ -518,7 +518,7 @@ gxvalid: TrueType GX validator
------------------------------------------------------------------------
-Copyright (C) 2004-2020 by
+Copyright (C) 2004-2021 by
suzuki toshiya, Masatake YAMATO, Red hat K.K.,
David Turner, Robert Wilhelm, and Werner Lemberg.
diff --git a/thirdparty/freetype/src/gxvalid/gxvalid.c b/thirdparty/freetype/src/gxvalid/gxvalid.c
index 683b8a6972..309d517443 100644
--- a/thirdparty/freetype/src/gxvalid/gxvalid.c
+++ b/thirdparty/freetype/src/gxvalid/gxvalid.c
@@ -4,7 +4,7 @@
*
* FreeType validator for TrueTypeGX/AAT tables (body only).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvalid.h b/thirdparty/freetype/src/gxvalid/gxvalid.h
index ff2812da20..2c41c28668 100644
--- a/thirdparty/freetype/src/gxvalid/gxvalid.h
+++ b/thirdparty/freetype/src/gxvalid/gxvalid.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT table validation (specification only).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvbsln.c b/thirdparty/freetype/src/gxvalid/gxvbsln.c
index ac58d4615c..af69cb51df 100644
--- a/thirdparty/freetype/src/gxvalid/gxvbsln.c
+++ b/thirdparty/freetype/src/gxvalid/gxvbsln.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT bsln table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvcommn.c b/thirdparty/freetype/src/gxvalid/gxvcommn.c
index ead0f24cd3..18e42b0cd8 100644
--- a/thirdparty/freetype/src/gxvalid/gxvcommn.c
+++ b/thirdparty/freetype/src/gxvalid/gxvcommn.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT common tables validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -46,16 +46,11 @@
/*************************************************************************/
/*************************************************************************/
- static int
- gxv_compare_ushort_offset( FT_UShort* a,
- FT_UShort* b )
+ FT_COMPARE_DEF( int )
+ gxv_compare_ushort_offset( const void* a,
+ const void* b )
{
- if ( *a < *b )
- return -1;
- else if ( *a > *b )
- return 1;
- else
- return 0;
+ return *(FT_UShort*)a - *(FT_UShort*)b;
}
@@ -78,7 +73,7 @@
buff[nmemb] = limit;
ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_UShort ),
- ( int(*)(const void*, const void*) )gxv_compare_ushort_offset );
+ gxv_compare_ushort_offset );
if ( buff[nmemb] > limit )
FT_INVALID_OFFSET;
@@ -111,13 +106,17 @@
/*************************************************************************/
/*************************************************************************/
- static int
- gxv_compare_ulong_offset( FT_ULong* a,
- FT_ULong* b )
+ FT_COMPARE_DEF( int )
+ gxv_compare_ulong_offset( const void* a,
+ const void* b )
{
- if ( *a < *b )
+ FT_ULong a_ = *(FT_ULong*)a;
+ FT_ULong b_ = *(FT_ULong*)b;
+
+
+ if ( a_ < b_ )
return -1;
- else if ( *a > *b )
+ else if ( a_ > b_ )
return 1;
else
return 0;
@@ -143,7 +142,7 @@
buff[nmemb] = limit;
ft_qsort( buff, ( nmemb + 1 ), sizeof ( FT_ULong ),
- ( int(*)(const void*, const void*) )gxv_compare_ulong_offset );
+ gxv_compare_ulong_offset );
if ( buff[nmemb] > limit )
FT_INVALID_OFFSET;
@@ -439,7 +438,7 @@
GXV_LIMIT_CHECK( 2 );
if ( p + 2 >= limit ) /* some fonts have too-short fmt0 array */
{
- GXV_TRACE(( "too short, glyphs %d - %d are missing\n",
+ GXV_TRACE(( "too short, glyphs %d - %ld are missing\n",
i, gxvalid->face->num_glyphs ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
break;
@@ -534,7 +533,7 @@
if ( lastGlyph < firstGlyph )
{
- GXV_TRACE(( "reverse ordered range specification at unit %d:",
+ GXV_TRACE(( "reverse ordered range specification at unit %d:"
" lastGlyph %d < firstGlyph %d ",
unit, lastGlyph, firstGlyph ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
@@ -605,7 +604,7 @@
if ( lastGlyph < firstGlyph )
{
- GXV_TRACE(( "reverse ordered range specification at unit %d:",
+ GXV_TRACE(( "reverse ordered range specification at unit %d:"
" lastGlyph %d < firstGlyph %d ",
unit, lastGlyph, firstGlyph ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
@@ -825,7 +824,7 @@
face = gxvalid->face;
if ( face->num_glyphs < gid )
{
- GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %d < %d\n",
+ GXV_TRACE(( " gxv_glyphid_check() gid overflow: num_glyphs %ld < %d\n",
face->num_glyphs, gid ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
}
@@ -1419,7 +1418,7 @@
GXV_NAME_ENTER( "XStateArray" );
GXV_TRACE(( "parse % 3d bytes by stateSize=% 3d maxClassID=% 3d\n",
- (int)(*length_p), stateSize, (int)(maxClassID) ));
+ (int)(*length_p), (int)stateSize, (int)(maxClassID) ));
/*
* 2 states are predefined and must be described:
@@ -1493,9 +1492,11 @@
state = (FT_UShort)( newState_idx / ( 1 + maxClassID ) );
if ( 0 != ( newState_idx % ( 1 + maxClassID ) ) )
{
- FT_TRACE4(( "-> new state = %d (supposed)\n"
- "but newState index 0x%04x is not aligned to %d-classes\n",
- state, newState_idx, 1 + maxClassID ));
+ FT_TRACE4(( "-> new state = %d (supposed)\n",
+ state ));
+ FT_TRACE4(( "but newState index 0x%04x"
+ " is not aligned to %d-classes\n",
+ newState_idx, 1 + maxClassID ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
}
@@ -1581,10 +1582,10 @@
stateArray = FT_NEXT_ULONG( p );
entryTable = FT_NEXT_ULONG( p );
- GXV_TRACE(( "nClasses =0x%08x\n", gxvalid->xstatetable.nClasses ));
- GXV_TRACE(( "offset to classTable=0x%08x\n", classTable ));
- GXV_TRACE(( "offset to stateArray=0x%08x\n", stateArray ));
- GXV_TRACE(( "offset to entryTable=0x%08x\n", entryTable ));
+ GXV_TRACE(( "nClasses =0x%08lx\n", gxvalid->xstatetable.nClasses ));
+ GXV_TRACE(( "offset to classTable=0x%08lx\n", classTable ));
+ GXV_TRACE(( "offset to stateArray=0x%08lx\n", stateArray ));
+ GXV_TRACE(( "offset to entryTable=0x%08lx\n", entryTable ));
if ( gxvalid->xstatetable.nClasses > 0xFFFFU )
FT_INVALID_DATA;
diff --git a/thirdparty/freetype/src/gxvalid/gxvcommn.h b/thirdparty/freetype/src/gxvalid/gxvcommn.h
index 59d149215c..b79b641142 100644
--- a/thirdparty/freetype/src/gxvalid/gxvcommn.h
+++ b/thirdparty/freetype/src/gxvalid/gxvcommn.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT common tables validation (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -61,8 +61,11 @@ FT_BEGIN_HEADER
#undef GXV_LOAD_UNUSED_VARS /* debug purpose */
-#define IS_PARANOID_VALIDATION ( gxvalid->root->level >= FT_VALIDATE_PARANOID )
-#define GXV_SET_ERR_IF_PARANOID( err ) { if ( IS_PARANOID_VALIDATION ) ( err ); }
+#define IS_PARANOID_VALIDATION \
+ ( gxvalid->root->level >= FT_VALIDATE_PARANOID )
+#define GXV_SET_ERR_IF_PARANOID( err ) \
+ do { if ( IS_PARANOID_VALIDATION ) ( err ); } while ( 0 )
+
/*************************************************************************/
/*************************************************************************/
@@ -261,17 +264,17 @@ FT_BEGIN_HEADER
} GXV_ValidatorRec;
-#define GXV_TABLE_DATA( tag, field ) \
+#define GXV_TABLE_DATA( tag, field ) \
( ( (GXV_ ## tag ## _Data)gxvalid->table_data )->field )
#undef FT_INVALID_
-#define FT_INVALID_( _error ) \
+#define FT_INVALID_( _error ) \
ft_validator_error( gxvalid->root, FT_THROW( _error ) )
-#define GXV_LIMIT_CHECK( _count ) \
- FT_BEGIN_STMNT \
+#define GXV_LIMIT_CHECK( _count ) \
+ FT_BEGIN_STMNT \
if ( p + _count > ( limit? limit : gxvalid->root->limit ) ) \
- FT_INVALID_TOO_SHORT; \
+ FT_INVALID_TOO_SHORT; \
FT_END_STMNT
@@ -279,19 +282,19 @@ FT_BEGIN_HEADER
#define GXV_INIT gxvalid->debug_indent = 0
-#define GXV_NAME_ENTER( name ) \
- FT_BEGIN_STMNT \
- gxvalid->debug_indent += 2; \
- FT_TRACE4(( "%*.s", gxvalid->debug_indent, 0 )); \
- FT_TRACE4(( "%s table\n", name )); \
+#define GXV_NAME_ENTER( name ) \
+ FT_BEGIN_STMNT \
+ gxvalid->debug_indent += 2; \
+ FT_TRACE4(( "%*.s", gxvalid->debug_indent, "" )); \
+ FT_TRACE4(( "%s table\n", name )); \
FT_END_STMNT
#define GXV_EXIT gxvalid->debug_indent -= 2
-#define GXV_TRACE( s ) \
- FT_BEGIN_STMNT \
- FT_TRACE4(( "%*.s", gxvalid->debug_indent, 0 )); \
- FT_TRACE4( s ); \
+#define GXV_TRACE( s ) \
+ FT_BEGIN_STMNT \
+ FT_TRACE4(( "%*.s", gxvalid->debug_indent, "" )); \
+ FT_TRACE4( s ); \
FT_END_STMNT
#else /* !FT_DEBUG_LEVEL_TRACE */
diff --git a/thirdparty/freetype/src/gxvalid/gxverror.h b/thirdparty/freetype/src/gxvalid/gxverror.h
index 5d8f0b6806..d20d395680 100644
--- a/thirdparty/freetype/src/gxvalid/gxverror.h
+++ b/thirdparty/freetype/src/gxvalid/gxverror.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT validation module error codes (specification only).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvfeat.c b/thirdparty/freetype/src/gxvalid/gxvfeat.c
index 400ec8a3fb..0a8e2f201a 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfeat.c
+++ b/thirdparty/freetype/src/gxvalid/gxvfeat.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT feat table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -90,7 +90,7 @@
if ( feature >= gxv_feat_registry_length )
{
- GXV_TRACE(( "feature number %d is out of range %d\n",
+ GXV_TRACE(( "feature number %d is out of range %lu\n",
feature, gxv_feat_registry_length ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
goto Exit;
diff --git a/thirdparty/freetype/src/gxvalid/gxvfeat.h b/thirdparty/freetype/src/gxvalid/gxvfeat.h
index 435dcefb09..f6d28fa71c 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfeat.h
+++ b/thirdparty/freetype/src/gxvalid/gxvfeat.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT feat table validation (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvfgen.c b/thirdparty/freetype/src/gxvalid/gxvfgen.c
index fe05a6f3a1..b47cd0f7ba 100644
--- a/thirdparty/freetype/src/gxvalid/gxvfgen.c
+++ b/thirdparty/freetype/src/gxvalid/gxvfgen.c
@@ -5,7 +5,7 @@
* Generate feature registry data for gxv `feat' validator.
* This program is derived from gxfeatreg.c in gxlayout.
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Masatake YAMATO and Redhat K.K.
*
* This file may only be used,
diff --git a/thirdparty/freetype/src/gxvalid/gxvjust.c b/thirdparty/freetype/src/gxvalid/gxvjust.c
index 3c7f1f9534..ec289b8ebf 100644
--- a/thirdparty/freetype/src/gxvalid/gxvjust.c
+++ b/thirdparty/freetype/src/gxvalid/gxvjust.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT just table validation (body).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -78,7 +78,7 @@
return;
GXV_TRACE(( "just table includes too large %s"
- " GID=%d > %d (in maxp)\n",
+ " GID=%d > %ld (in maxp)\n",
msg_tag, gid, gxvalid->face->num_glyphs ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
}
@@ -140,7 +140,7 @@
count = FT_NEXT_ULONG( p );
for ( i = 0; i < count; i++ )
{
- GXV_TRACE(( "validating wdc pair %d/%d\n", i + 1, count ));
+ GXV_TRACE(( "validating wdc pair %lu/%lu\n", i + 1, count ));
gxv_just_wdp_entry_validate( p, limit, gxvalid );
p += gxvalid->subtable_length;
}
@@ -206,7 +206,8 @@
if ( lowerLimit >= upperLimit )
{
GXV_TRACE(( "just table includes invalid range spec:"
- " lowerLimit(%d) > upperLimit(%d)\n" ));
+ " lowerLimit(%ld) > upperLimit(%ld)\n",
+ lowerLimit, upperLimit ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_DATA );
}
@@ -294,14 +295,14 @@
gxvalid->subtable_length = (FT_ULong)( p - table );
if ( variantsAxis != 0x64756374L ) /* 'duct' */
- GXV_TRACE(( "variantsAxis 0x%08x is non default value",
+ GXV_TRACE(( "variantsAxis 0x%08lx is non default value",
variantsAxis ));
if ( minimumLimit > noStretchValue )
- GXV_TRACE(( "type4:minimumLimit 0x%08x > noStretchValue 0x%08x\n",
+ GXV_TRACE(( "type4:minimumLimit 0x%08lx > noStretchValue 0x%08lx\n",
minimumLimit, noStretchValue ));
else if ( noStretchValue > maximumLimit )
- GXV_TRACE(( "type4:noStretchValue 0x%08x > maximumLimit 0x%08x\n",
+ GXV_TRACE(( "type4:noStretchValue 0x%08lx > maximumLimit 0x%08lx\n",
noStretchValue, maximumLimit ));
else if ( !IS_PARANOID_VALIDATION )
return;
@@ -389,7 +390,7 @@
GXV_LIMIT_CHECK( 4 );
actionCount = FT_NEXT_ULONG( p );
- GXV_TRACE(( "actionCount = %d\n", actionCount ));
+ GXV_TRACE(( "actionCount = %lu\n", actionCount ));
for ( i = 0; i < actionCount; i++ )
{
@@ -514,14 +515,14 @@
coverage = FT_NEXT_USHORT( p );
subFeatureFlags = FT_NEXT_ULONG( p );
- GXV_TRACE(( " justClassTable: coverage = 0x%04x (%s) ", coverage ));
+ GXV_TRACE(( " justClassTable: coverage = 0x%04x ", coverage ));
if ( ( coverage & 0x4000 ) == 0 )
GXV_TRACE(( "ascending\n" ));
else
GXV_TRACE(( "descending\n" ));
if ( subFeatureFlags )
- GXV_TRACE(( " justClassTable: nonzero value (0x%08x)"
+ GXV_TRACE(( " justClassTable: nonzero value (0x%08lx)"
" in unused subFeatureFlags\n", subFeatureFlags ));
gxvalid->statetable.optdata = NULL;
@@ -684,7 +685,7 @@
/* Version 1.0 (always:2000) */
- GXV_TRACE(( " (version = 0x%08x)\n", version ));
+ GXV_TRACE(( " (version = 0x%08lx)\n", version ));
if ( version != 0x00010000UL )
FT_INVALID_FORMAT;
diff --git a/thirdparty/freetype/src/gxvalid/gxvkern.c b/thirdparty/freetype/src/gxvalid/gxvkern.c
index cc0b3dfcb4..542e8bc095 100644
--- a/thirdparty/freetype/src/gxvalid/gxvkern.c
+++ b/thirdparty/freetype/src/gxvalid/gxvkern.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT kern table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -487,7 +487,7 @@
if ( gxvalid->face->num_glyphs != glyphCount )
{
- GXV_TRACE(( "maxGID=%d, but glyphCount=%d\n",
+ GXV_TRACE(( "maxGID=%ld, but glyphCount=%d\n",
gxvalid->face->num_glyphs, glyphCount ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_GLYPH_ID );
}
@@ -745,7 +745,7 @@
#ifdef GXV_LOAD_TRACE_VARS
FT_UShort version = 0; /* MS only: subtable version, unused */
#endif
- FT_ULong length; /* MS: 16bit, Apple: 32bit*/
+ FT_ULong length; /* MS: 16bit, Apple: 32bit */
FT_UShort coverage;
#ifdef GXV_LOAD_TRACE_VARS
FT_UShort tupleIndex = 0; /* Apple only */
@@ -772,7 +772,7 @@
tupleIndex = 0;
#endif
GXV_TRACE(( "Subtable version = %d\n", version ));
- GXV_TRACE(( "Subtable length = %d\n", length ));
+ GXV_TRACE(( "Subtable length = %lu\n", length ));
break;
case KERN_DIALECT_APPLE:
@@ -783,7 +783,7 @@
#ifdef GXV_LOAD_TRACE_VARS
tupleIndex = 0;
#endif
- GXV_TRACE(( "Subtable length = %d\n", length ));
+ GXV_TRACE(( "Subtable length = %lu\n", length ));
if ( KERN_IS_NEW( gxvalid ) )
{
@@ -800,7 +800,7 @@
default:
length = u16[1];
GXV_TRACE(( "cannot detect subtable dialect, "
- "just skip %d byte\n", length ));
+ "just skip %lu byte\n", length ));
goto Exit;
}
@@ -884,7 +884,7 @@
for ( i = 0; i < nTables; i++ )
{
- GXV_TRACE(( "validating subtable %d/%d\n", i, nTables ));
+ GXV_TRACE(( "validating subtable %d/%lu\n", i, nTables ));
/* p should be 32bit-aligned? */
gxv_kern_subtable_validate( p, 0, gxvalid );
p += gxvalid->subtable_length;
diff --git a/thirdparty/freetype/src/gxvalid/gxvlcar.c b/thirdparty/freetype/src/gxvalid/gxvlcar.c
index 82ac1907ab..9db839ba8a 100644
--- a/thirdparty/freetype/src/gxvalid/gxvlcar.c
+++ b/thirdparty/freetype/src/gxvalid/gxvlcar.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT lcar table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmod.c b/thirdparty/freetype/src/gxvalid/gxvmod.c
index a467e87131..1a11426ccb 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmod.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmod.c
@@ -4,7 +4,7 @@
*
* FreeType's TrueTypeGX/AAT validation module implementation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -62,7 +62,7 @@
if ( error )
goto Exit;
- if ( FT_ALLOC( *table, *table_len ) )
+ if ( FT_QALLOC( *table, *table_len ) )
goto Exit;
error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len );
@@ -76,27 +76,31 @@
FT_Byte* volatile _sfnt = NULL; \
FT_ULong len_ ## _sfnt = 0
-#define GXV_TABLE_LOAD( _sfnt ) \
- if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \
- ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \
- { \
- error = gxv_load_table( face, TTAG_ ## _sfnt, \
- &_sfnt, &len_ ## _sfnt ); \
- if ( error ) \
- goto Exit; \
- }
-
-#define GXV_TABLE_VALIDATE( _sfnt ) \
- if ( _sfnt ) \
- { \
- ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \
- FT_VALIDATE_DEFAULT ); \
- if ( ft_setjmp( valid.jump_buffer ) == 0 ) \
- gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \
- error = valid.error; \
- if ( error ) \
- goto Exit; \
- }
+#define GXV_TABLE_LOAD( _sfnt ) \
+ FT_BEGIN_STMNT \
+ if ( ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) && \
+ ( gx_flags & FT_VALIDATE_ ## _sfnt ) ) \
+ { \
+ error = gxv_load_table( face, TTAG_ ## _sfnt, \
+ &_sfnt, &len_ ## _sfnt ); \
+ if ( error ) \
+ goto Exit; \
+ } \
+ FT_END_STMNT
+
+#define GXV_TABLE_VALIDATE( _sfnt ) \
+ FT_BEGIN_STMNT \
+ if ( _sfnt ) \
+ { \
+ ft_validator_init( &valid, _sfnt, _sfnt + len_ ## _sfnt, \
+ FT_VALIDATE_DEFAULT ); \
+ if ( ft_setjmp( valid.jump_buffer ) == 0 ) \
+ gxv_ ## _sfnt ## _validate( _sfnt, face, &valid ); \
+ error = valid.error; \
+ if ( error ) \
+ goto Exit; \
+ } \
+ FT_END_STMNT
#define GXV_TABLE_SET( _sfnt ) \
if ( FT_VALIDATE_ ## _sfnt ## _INDEX < table_count ) \
diff --git a/thirdparty/freetype/src/gxvalid/gxvmod.h b/thirdparty/freetype/src/gxvalid/gxvmod.h
index f2982c96c2..90e0c10a28 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmod.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmod.h
@@ -5,7 +5,7 @@
* FreeType's TrueTypeGX/AAT validation module implementation
* (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort.c b/thirdparty/freetype/src/gxvalid/gxvmort.c
index aae7f01a89..d0db7f4d2d 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT mort table validation (body).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -288,7 +288,7 @@
for ( i = 0; i < nChains; i++ )
{
- GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains ));
+ GXV_TRACE(( "validating chain %lu/%lu\n", i + 1, nChains ));
GXV_32BIT_ALIGNMENT_VALIDATE( p - table );
gxv_mort_chain_validate( p, limit, gxvalid );
p += gxvalid->subtable_length;
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort.h b/thirdparty/freetype/src/gxvalid/gxvmort.h
index 7237c58254..de5ab4ef02 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmort.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT common definition for mort table (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort0.c b/thirdparty/freetype/src/gxvalid/gxvmort0.c
index d452c1ccaa..0c695aa4c7 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort0.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort0.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT mort table validation
* body for type0 (Indic Script Rearrangement) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort1.c b/thirdparty/freetype/src/gxvalid/gxvmort1.c
index d743f89f6e..0af22362f1 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort1.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort1.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT mort table validation
* body for type1 (Contextual Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort2.c b/thirdparty/freetype/src/gxvalid/gxvmort2.c
index 9e69e1269d..73f418ea1e 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort2.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort2.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT mort table validation
* body for type2 (Ligature Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -152,7 +152,7 @@
GXV_32BIT_ALIGNMENT_VALIDATE( ligActionOffset );
if ( p < lat_base )
{
- GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%d byte rewind)\n",
+ GXV_TRACE(( "too short offset 0x%04x: p < lat_base (%ld byte rewind)\n",
ligActionOffset, lat_base - p ));
/* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
@@ -160,7 +160,7 @@
}
else if ( lat_limit < p )
{
- GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%d byte overrun)\n",
+ GXV_TRACE(( "too large offset 0x%04x: lat_limit < p (%ld byte overrun)\n",
ligActionOffset, p - lat_limit ));
/* FontValidator, ftxvalidator, ftxdumperfuser warn but continue */
@@ -187,17 +187,17 @@
offset = lig_action & 0x3FFFFFFFUL;
if ( offset * 2 < optdata->ligatureTable )
{
- GXV_TRACE(( "too short offset 0x%08x:"
- " 2 x offset < ligatureTable (%d byte rewind)\n",
+ GXV_TRACE(( "too short offset 0x%08lx:"
+ " 2 x offset < ligatureTable (%lu byte rewind)\n",
offset, optdata->ligatureTable - offset * 2 ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
} else if ( offset * 2 >
optdata->ligatureTable + optdata->ligatureTable_length )
{
- GXV_TRACE(( "too long offset 0x%08x:"
+ GXV_TRACE(( "too long offset 0x%08lx:"
" 2 x offset > ligatureTable + ligatureTable_length"
- " (%d byte overrun)\n",
+ " (%lu byte overrun)\n",
offset,
optdata->ligatureTable + optdata->ligatureTable_length
- offset * 2 ));
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort4.c b/thirdparty/freetype/src/gxvalid/gxvmort4.c
index 4584d204cf..1b0dd3edab 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort4.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort4.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT mort table validation
* body for type4 (Non-Contextual Glyph Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmort5.c b/thirdparty/freetype/src/gxvalid/gxvmort5.c
index a15a24fe65..cfbf31208c 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmort5.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmort5.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT mort table validation
* body for type5 (Contextual Glyph Insertion) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -63,7 +63,7 @@
*GXV_mort_subtable_type5_StateOptRecData;
- FT_LOCAL_DEF( void )
+ static void
gxv_mort_subtable_type5_subtable_setup( FT_UShort table_size,
FT_UShort classTable,
FT_UShort stateArray,
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx.c b/thirdparty/freetype/src/gxvalid/gxvmorx.c
index 754d9f8bf1..babff51866 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT morx table validation (body).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -84,7 +84,7 @@
p += 4;
#endif
- GXV_TRACE(( "validating chain subtable %d/%d (%d bytes)\n",
+ GXV_TRACE(( "validating chain subtable %d/%d (%lu bytes)\n",
i + 1, nSubtables, length ));
type = coverage & 0x0007;
@@ -99,7 +99,7 @@
func = fmt_funcs_table[type];
if ( !func )
- GXV_TRACE(( "morx type %d is reserved\n", type ));
+ GXV_TRACE(( "morx type %lu is reserved\n", type ));
func( p, p + rest, gxvalid );
@@ -186,7 +186,7 @@
for ( i = 0; i < nChains; i++ )
{
- GXV_TRACE(( "validating chain %d/%d\n", i + 1, nChains ));
+ GXV_TRACE(( "validating chain %lu/%lu\n", i + 1, nChains ));
GXV_32BIT_ALIGNMENT_VALIDATE( p - table );
gxv_morx_chain_validate( p, limit, gxvalid );
p += gxvalid->subtable_length;
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx.h b/thirdparty/freetype/src/gxvalid/gxvmorx.h
index f747b1d636..f155f18460 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx.h
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx.h
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT common definition for morx table (specification).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx0.c b/thirdparty/freetype/src/gxvalid/gxvmorx0.c
index 5a42e552e2..e93cea9cca 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx0.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx0.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT morx table validation
* body for type0 (Indic Script Rearrangement) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx1.c b/thirdparty/freetype/src/gxvalid/gxvmorx1.c
index 9f8b69067e..d380f8d1ad 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx1.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx1.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT morx table validation
* body for type1 (Contextual Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx2.c b/thirdparty/freetype/src/gxvalid/gxvmorx2.c
index 98b5c49c26..e7e008f069 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx2.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx2.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT morx table validation
* body for type2 (Ligature Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -72,11 +72,11 @@
optdata->componentTable = FT_NEXT_ULONG( p );
optdata->ligatureTable = FT_NEXT_ULONG( p );
- GXV_TRACE(( "offset to ligActionTable=0x%08x\n",
+ GXV_TRACE(( "offset to ligActionTable=0x%08lx\n",
optdata->ligActionTable ));
- GXV_TRACE(( "offset to componentTable=0x%08x\n",
+ GXV_TRACE(( "offset to componentTable=0x%08lx\n",
optdata->componentTable ));
- GXV_TRACE(( "offset to ligatureTable=0x%08x\n",
+ GXV_TRACE(( "offset to ligatureTable=0x%08lx\n",
optdata->ligatureTable ));
}
@@ -116,19 +116,19 @@
gxv_set_length_by_ulong_offset( o, l, buff, 6, table_size, gxvalid );
- GXV_TRACE(( "classTable: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "classTable: offset=0x%08lx length=0x%08lx\n",
classTable, *classTable_length_p ));
- GXV_TRACE(( "stateArray: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "stateArray: offset=0x%08lx length=0x%08lx\n",
stateArray, *stateArray_length_p ));
- GXV_TRACE(( "entryTable: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "entryTable: offset=0x%08lx length=0x%08lx\n",
entryTable, *entryTable_length_p ));
- GXV_TRACE(( "ligActionTable: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "ligActionTable: offset=0x%08lx length=0x%08lx\n",
optdata->ligActionTable,
optdata->ligActionTable_length ));
- GXV_TRACE(( "componentTable: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "componentTable: offset=0x%08lx length=0x%08lx\n",
optdata->componentTable,
optdata->componentTable_length ));
- GXV_TRACE(( "ligatureTable: offset=0x%08x length=0x%08x\n",
+ GXV_TRACE(( "ligatureTable: offset=0x%08lx length=0x%08lx\n",
optdata->ligatureTable,
optdata->ligatureTable_length ));
@@ -157,12 +157,12 @@
if ( p < lat_base )
{
- GXV_TRACE(( "p < lat_base (%d byte rewind)\n", lat_base - p ));
+ GXV_TRACE(( "p < lat_base (%ld byte rewind)\n", lat_base - p ));
FT_INVALID_OFFSET;
}
else if ( lat_limit < p )
{
- GXV_TRACE(( "lat_limit < p (%d byte overrun)\n", p - lat_limit ));
+ GXV_TRACE(( "lat_limit < p (%ld byte overrun)\n", p - lat_limit ));
FT_INVALID_OFFSET;
}
@@ -196,7 +196,7 @@
GXV_TRACE(( "ligature action table includes"
" too negative offset moving all GID"
- " below defined range: 0x%04x\n",
+ " below defined range: 0x%04lx\n",
offset & 0xFFFFU ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
}
@@ -207,14 +207,14 @@
GXV_TRACE(( "ligature action table includes"
" too large offset moving all GID"
- " over defined range: 0x%04x\n",
+ " over defined range: 0x%04lx\n",
offset & 0xFFFFU ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
}
GXV_TRACE(( "ligature action table includes"
" invalid offset to add to 16-bit GID:"
- " 0x%08x\n", offset ));
+ " 0x%08lx\n", offset ));
GXV_SET_ERR_IF_PARANOID( FT_INVALID_OFFSET );
}
}
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx4.c b/thirdparty/freetype/src/gxvalid/gxvmorx4.c
index 857e4d4eb8..e632e8d42a 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx4.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx4.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT morx table validation
* body for "morx" type4 (Non-Contextual Glyph Substitution) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvmorx5.c b/thirdparty/freetype/src/gxvalid/gxvmorx5.c
index 7ceba077af..5ad33976d7 100644
--- a/thirdparty/freetype/src/gxvalid/gxvmorx5.c
+++ b/thirdparty/freetype/src/gxvalid/gxvmorx5.c
@@ -5,7 +5,7 @@
* TrueTypeGX/AAT morx table validation
* body for type5 (Contextual Glyph Insertion) subtable.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
diff --git a/thirdparty/freetype/src/gxvalid/gxvopbd.c b/thirdparty/freetype/src/gxvalid/gxvopbd.c
index a398fe0977..7a2feab468 100644
--- a/thirdparty/freetype/src/gxvalid/gxvopbd.c
+++ b/thirdparty/freetype/src/gxvalid/gxvopbd.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT opbd table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -188,7 +188,7 @@
/* only 0x00010000 is defined (1996) */
- GXV_TRACE(( "(version=0x%08x)\n", version ));
+ GXV_TRACE(( "(version=0x%08lx)\n", version ));
if ( 0x00010000UL != version )
FT_INVALID_FORMAT;
diff --git a/thirdparty/freetype/src/gxvalid/gxvprop.c b/thirdparty/freetype/src/gxvalid/gxvprop.c
index bee8bab97b..98cd368845 100644
--- a/thirdparty/freetype/src/gxvalid/gxvprop.c
+++ b/thirdparty/freetype/src/gxvalid/gxvprop.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT prop table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -283,7 +283,7 @@
format = FT_NEXT_USHORT( p );
defaultProp = FT_NEXT_USHORT( p );
- GXV_TRACE(( " version 0x%08x\n", version ));
+ GXV_TRACE(( " version 0x%08lx\n", version ));
GXV_TRACE(( " format 0x%04x\n", format ));
GXV_TRACE(( " defaultProp 0x%04x\n", defaultProp ));
@@ -309,7 +309,7 @@
if ( format == 0 )
{
FT_TRACE3(( "(format 0, no per-glyph properties, "
- "remaining %d bytes are skipped)", limit - p ));
+ "remaining %ld bytes are skipped)", limit - p ));
goto Exit;
}
diff --git a/thirdparty/freetype/src/gxvalid/gxvtrak.c b/thirdparty/freetype/src/gxvalid/gxvtrak.c
index 58a631c9e5..c1ed92872d 100644
--- a/thirdparty/freetype/src/gxvalid/gxvtrak.c
+++ b/thirdparty/freetype/src/gxvalid/gxvtrak.c
@@ -4,7 +4,7 @@
*
* TrueTypeGX/AAT trak table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
@@ -130,7 +130,7 @@
p = table + j * ( 4 + 2 + 2 );
t = FT_NEXT_LONG( p );
if ( t == track )
- GXV_TRACE(( "duplicated entries found for track value 0x%x\n",
+ GXV_TRACE(( "duplicated entries found for track value 0x%lx\n",
track ));
}
}
@@ -243,7 +243,7 @@
vertOffset = FT_NEXT_USHORT( p );
reserved = FT_NEXT_USHORT( p );
- GXV_TRACE(( " (version = 0x%08x)\n", version ));
+ GXV_TRACE(( " (version = 0x%08lx)\n", version ));
GXV_TRACE(( " (format = 0x%04x)\n", format ));
GXV_TRACE(( " (horizOffset = 0x%04x)\n", horizOffset ));
GXV_TRACE(( " (vertOffset = 0x%04x)\n", vertOffset ));
diff --git a/thirdparty/freetype/src/gxvalid/module.mk b/thirdparty/freetype/src/gxvalid/module.mk
deleted file mode 100644
index e7d408df9d..0000000000
--- a/thirdparty/freetype/src/gxvalid/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 gxvalid module definition
-#
-
-# Copyright (C) 2004-2020 by
-# suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += GXVALID_MODULE
-
-define GXVALID_MODULE
-$(OPEN_DRIVER) FT_Module_Class, gxv_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)gxvalid $(ECHO_DRIVER_DESC)TrueTypeGX/AAT validation module$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/gxvalid/rules.mk b/thirdparty/freetype/src/gxvalid/rules.mk
deleted file mode 100644
index d55a4935e2..0000000000
--- a/thirdparty/freetype/src/gxvalid/rules.mk
+++ /dev/null
@@ -1,98 +0,0 @@
-#
-# FreeType 2 TrueTypeGX/AAT validation driver configuration rules
-#
-
-
-# Copyright (C) 2004-2020 by
-# suzuki toshiya, Masatake YAMATO, Red Hat K.K.,
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# GXV driver directory
-#
-GXV_DIR := $(SRC_DIR)/gxvalid
-
-
-# compilation flags for the driver
-#
-GXV_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(GXV_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# GXV driver sources (i.e., C files)
-#
-GXV_DRV_SRC := $(GXV_DIR)/gxvcommn.c \
- $(GXV_DIR)/gxvfeat.c \
- $(GXV_DIR)/gxvbsln.c \
- $(GXV_DIR)/gxvtrak.c \
- $(GXV_DIR)/gxvopbd.c \
- $(GXV_DIR)/gxvprop.c \
- $(GXV_DIR)/gxvjust.c \
- $(GXV_DIR)/gxvmort.c \
- $(GXV_DIR)/gxvmort0.c \
- $(GXV_DIR)/gxvmort1.c \
- $(GXV_DIR)/gxvmort2.c \
- $(GXV_DIR)/gxvmort4.c \
- $(GXV_DIR)/gxvmort5.c \
- $(GXV_DIR)/gxvmorx.c \
- $(GXV_DIR)/gxvmorx0.c \
- $(GXV_DIR)/gxvmorx1.c \
- $(GXV_DIR)/gxvmorx2.c \
- $(GXV_DIR)/gxvmorx4.c \
- $(GXV_DIR)/gxvmorx5.c \
- $(GXV_DIR)/gxvlcar.c \
- $(GXV_DIR)/gxvkern.c \
- $(GXV_DIR)/gxvmod.c
-
-# GXV driver headers
-#
-GXV_DRV_H := $(GXV_DIR)/gxvalid.h \
- $(GXV_DIR)/gxverror.h \
- $(GXV_DIR)/gxvcommn.h \
- $(GXV_DIR)/gxvfeat.h \
- $(GXV_DIR)/gxvmod.h \
- $(GXV_DIR)/gxvmort.h \
- $(GXV_DIR)/gxvmorx.h
-
-
-# GXV driver object(s)
-#
-# GXV_DRV_OBJ_M is used during `multi' builds.
-# GXV_DRV_OBJ_S is used during `single' builds.
-#
-GXV_DRV_OBJ_M := $(GXV_DRV_SRC:$(GXV_DIR)/%.c=$(OBJ_DIR)/%.$O)
-GXV_DRV_OBJ_S := $(OBJ_DIR)/gxvalid.$O
-
-# GXV driver source file for single build
-#
-GXV_DRV_SRC_S := $(GXV_DIR)/gxvalid.c
-
-
-# GXV driver - single object
-#
-$(GXV_DRV_OBJ_S): $(GXV_DRV_SRC_S) $(GXV_DRV_SRC) \
- $(FREETYPE_H) $(GXV_DRV_H)
- $(GXV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(GXV_DRV_SRC_S))
-
-
-# GXV driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(GXV_DIR)/%.c $(FREETYPE_H) $(GXV_DRV_H)
- $(GXV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(GXV_DRV_OBJ_S)
-DRV_OBJS_M += $(GXV_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/gzip/ftgzip.c b/thirdparty/freetype/src/gzip/ftgzip.c
index de7d0fdd5b..8f98a7d17b 100644
--- a/thirdparty/freetype/src/gzip/ftgzip.c
+++ b/thirdparty/freetype/src/gzip/ftgzip.c
@@ -8,7 +8,7 @@
* parse compressed PCF fonts, as found with many X11 server
* distributions.
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -121,24 +121,29 @@
'malloc/free' */
static voidpf
- ft_gzip_alloc( FT_Memory memory,
- uInt items,
- uInt size )
+ ft_gzip_alloc( voidpf opaque,
+ uInt items,
+ uInt size )
{
- FT_ULong sz = (FT_ULong)size * items;
+ FT_Memory memory = (FT_Memory)opaque;
+ FT_ULong sz = (FT_ULong)size * items;
FT_Error error;
- FT_Pointer p = NULL;
+ FT_Pointer p = NULL;
- (void)FT_ALLOC( p, sz );
+ /* allocate and zero out */
+ FT_MEM_ALLOC( p, sz );
return p;
}
static void
- ft_gzip_free( FT_Memory memory,
- voidpf address )
+ ft_gzip_free( voidpf opaque,
+ voidpf address )
{
+ FT_Memory memory = (FT_Memory)opaque;
+
+
FT_MEM_FREE( address );
}
@@ -150,14 +155,14 @@
unsigned items,
unsigned size )
{
- return ft_gzip_alloc( (FT_Memory)opaque, items, size );
+ return ft_gzip_alloc( opaque, items, size );
}
local void
zcfree( voidpf opaque,
voidpf ptr )
{
- ft_gzip_free( (FT_Memory)opaque, ptr );
+ ft_gzip_free( opaque, ptr );
}
#endif /* !SYSTEM_ZLIB && !USE_ZLIB_ZCALLOC */
@@ -304,8 +309,8 @@
}
/* initialize zlib -- there is no zlib header in the compressed stream */
- zstream->zalloc = (alloc_func)ft_gzip_alloc;
- zstream->zfree = (free_func) ft_gzip_free;
+ zstream->zalloc = ft_gzip_alloc;
+ zstream->zfree = ft_gzip_free;
zstream->opaque = stream->memory;
zstream->avail_in = 0;
@@ -462,12 +467,13 @@
FT_ULong count )
{
FT_Error error = FT_Err_Ok;
- FT_ULong delta;
for (;;)
{
- delta = (FT_ULong)( zip->limit - zip->cursor );
+ FT_ULong delta = (FT_ULong)( zip->limit - zip->cursor );
+
+
if ( delta >= count )
delta = count;
@@ -671,7 +677,7 @@
FT_Byte* zip_buff = NULL;
- if ( !FT_ALLOC( zip_buff, zip_size ) )
+ if ( !FT_QALLOC( zip_buff, zip_size ) )
{
FT_ULong count;
@@ -741,8 +747,8 @@
stream.next_out = output;
stream.avail_out = (uInt)*output_len;
- stream.zalloc = (alloc_func)ft_gzip_alloc;
- stream.zfree = (free_func) ft_gzip_free;
+ stream.zalloc = ft_gzip_alloc;
+ stream.zfree = ft_gzip_free;
stream.opaque = memory;
/* This is a temporary fix and will be removed once the internal
diff --git a/thirdparty/freetype/src/gzip/rules.mk b/thirdparty/freetype/src/gzip/rules.mk
deleted file mode 100644
index 4ea823f8d3..0000000000
--- a/thirdparty/freetype/src/gzip/rules.mk
+++ /dev/null
@@ -1,83 +0,0 @@
-#
-# FreeType 2 GZip support configuration rules
-#
-
-
-# Copyright (C) 2002-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# gzip driver directory
-#
-GZIP_DIR := $(SRC_DIR)/gzip
-
-
-# compilation flags for the driver
-#
-ifeq ($(SYSTEM_ZLIB),)
- GZIP_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(GZIP_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-else
- GZIP_COMPILE := $(CC) $(ANSIFLAGS) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-endif
-
-
-# gzip support sources
-#
-# All source and header files get loaded by `ftgzip.c' only if SYSTEM_ZLIB
-# is not defined (regardless whether we have a `single' or a `multi' build).
-# However, it doesn't harm if we add everything as a dependency
-# unconditionally.
-#
-GZIP_DRV_SRCS := $(GZIP_DIR)/adler32.c \
- $(GZIP_DIR)/ftzconf.h \
- $(GZIP_DIR)/infblock.c \
- $(GZIP_DIR)/infblock.h \
- $(GZIP_DIR)/infcodes.c \
- $(GZIP_DIR)/infcodes.h \
- $(GZIP_DIR)/inffixed.h \
- $(GZIP_DIR)/inflate.c \
- $(GZIP_DIR)/inftrees.c \
- $(GZIP_DIR)/inftrees.h \
- $(GZIP_DIR)/infutil.c \
- $(GZIP_DIR)/infutil.h \
- $(GZIP_DIR)/zlib.h \
- $(GZIP_DIR)/zutil.c \
- $(GZIP_DIR)/zutil.h
-
-
-# gzip driver object(s)
-#
-# GZIP_DRV_OBJ is used during both `single' and `multi' builds
-#
-GZIP_DRV_OBJ := $(OBJ_DIR)/ftgzip.$O
-
-
-# gzip main source file
-#
-GZIP_DRV_SRC := $(GZIP_DIR)/ftgzip.c
-
-
-# gzip support - object
-#
-$(GZIP_DRV_OBJ): $(GZIP_DRV_SRC) $(GZIP_DRV_SRCS) $(FREETYPE_H)
- $(GZIP_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(GZIP_DRV_SRC))
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(GZIP_DRV_OBJ)
-DRV_OBJS_M += $(GZIP_DRV_OBJ)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/lzw/ftlzw.c b/thirdparty/freetype/src/lzw/ftlzw.c
index ddb81e6e97..e112418ab1 100644
--- a/thirdparty/freetype/src/lzw/ftlzw.c
+++ b/thirdparty/freetype/src/lzw/ftlzw.c
@@ -8,7 +8,7 @@
* be used to parse compressed PCF fonts, as found with many X11 server
* distributions.
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* Albert Chin-A-Young.
*
* based on code in `src/gzip/ftgzip.c'
@@ -383,7 +383,7 @@
stream->size = 0x7FFFFFFFL; /* don't know the real size! */
stream->pos = 0;
- stream->base = 0;
+ stream->base = NULL;
stream->read = ft_lzw_stream_io;
stream->close = ft_lzw_stream_close;
diff --git a/thirdparty/freetype/src/lzw/ftzopen.c b/thirdparty/freetype/src/lzw/ftzopen.c
index 884d2ec74e..8b5b357f36 100644
--- a/thirdparty/freetype/src/lzw/ftzopen.c
+++ b/thirdparty/freetype/src/lzw/ftzopen.c
@@ -8,7 +8,7 @@
* be used to parse compressed PCF fonts, as found with many X11 server
* distributions.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner.
*
* This file is part of the FreeType project, and may only be used,
@@ -127,6 +127,7 @@
new_size = new_size + ( new_size >> 1 ) + 4;
+ /* if relocating to heap */
if ( state->stack == state->stack_0 )
{
state->stack = NULL;
@@ -142,9 +143,13 @@
return -1;
}
- if ( FT_RENEW_ARRAY( state->stack, old_size, new_size ) )
+ if ( FT_QRENEW_ARRAY( state->stack, old_size, new_size ) )
return -1;
+ /* if relocating to heap */
+ if ( old_size == 0 )
+ FT_MEM_COPY( state->stack, state->stack_0, FT_LZW_DEFAULT_STACK_SIZE );
+
state->stack_size = new_size;
}
return 0;
diff --git a/thirdparty/freetype/src/lzw/ftzopen.h b/thirdparty/freetype/src/lzw/ftzopen.h
index d8768f7b47..9ada742c73 100644
--- a/thirdparty/freetype/src/lzw/ftzopen.h
+++ b/thirdparty/freetype/src/lzw/ftzopen.h
@@ -8,7 +8,7 @@
* be used to parse compressed PCF fonts, as found with many X11 server
* distributions.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/lzw/rules.mk b/thirdparty/freetype/src/lzw/rules.mk
deleted file mode 100644
index 3468ee024d..0000000000
--- a/thirdparty/freetype/src/lzw/rules.mk
+++ /dev/null
@@ -1,72 +0,0 @@
-#
-# FreeType 2 LZW support configuration rules
-#
-
-
-# Copyright (C) 2004-2020 by
-# Albert Chin-A-Young.
-#
-# based on `src/lzw/rules.mk'
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# LZW driver directory
-#
-LZW_DIR := $(SRC_DIR)/lzw
-
-
-# compilation flags for the driver
-#
-LZW_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(LZW_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# LZW support sources (i.e., C files)
-#
-LZW_DRV_SRC := $(LZW_DIR)/ftlzw.c
-
-# LZW support headers
-#
-LZW_DRV_H := $(LZW_DIR)/ftzopen.h \
- $(LZW_DIR)/ftzopen.c
-
-
-# LZW driver object(s)
-#
-# LZW_DRV_OBJ_M is used during `multi' builds
-# LZW_DRV_OBJ_S is used during `single' builds
-#
-LZW_DRV_OBJ_M := $(OBJ_DIR)/ftlzw.$O
-LZW_DRV_OBJ_S := $(OBJ_DIR)/ftlzw.$O
-
-# LZW support source file for single build
-#
-LZW_DRV_SRC_S := $(LZW_DIR)/ftlzw.c
-
-
-# LZW support - single object
-#
-$(LZW_DRV_OBJ_S): $(LZW_DRV_SRC_S) $(LZW_DRV_SRC) $(FREETYPE_H) $(LZW_DRV_H)
- $(LZW_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(LZW_DRV_SRC_S))
-
-
-# LZW support - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(LZW_DIR)/%.c $(FREETYPE_H) $(LZW_DRV_H)
- $(LZW_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(LZW_DRV_OBJ_S)
-DRV_OBJS_M += $(LZW_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/otvalid/module.mk b/thirdparty/freetype/src/otvalid/module.mk
deleted file mode 100644
index 67b9820d84..0000000000
--- a/thirdparty/freetype/src/otvalid/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 otvalid module definition
-#
-
-
-# Copyright (C) 2004-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += OTVALID_MODULE
-
-define OTVALID_MODULE
-$(OPEN_DRIVER) FT_Module_Class, otv_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)otvalid $(ECHO_DRIVER_DESC)OpenType validation module$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/otvalid/otvalid.c b/thirdparty/freetype/src/otvalid/otvalid.c
index d640209f68..869233ce8c 100644
--- a/thirdparty/freetype/src/otvalid/otvalid.c
+++ b/thirdparty/freetype/src/otvalid/otvalid.c
@@ -4,7 +4,7 @@
*
* FreeType validator for OpenType tables (body only).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvalid.h b/thirdparty/freetype/src/otvalid/otvalid.h
index 8208ff0112..f8ca454d6e 100644
--- a/thirdparty/freetype/src/otvalid/otvalid.h
+++ b/thirdparty/freetype/src/otvalid/otvalid.h
@@ -4,7 +4,7 @@
*
* OpenType table validation (specification only).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvbase.c b/thirdparty/freetype/src/otvalid/otvbase.c
index 250ae98ab5..83f998cdb1 100644
--- a/thirdparty/freetype/src/otvalid/otvbase.c
+++ b/thirdparty/freetype/src/otvalid/otvbase.c
@@ -4,7 +4,7 @@
*
* OpenType BASE table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvcommn.c b/thirdparty/freetype/src/otvalid/otvcommn.c
index faaa846871..40624bb159 100644
--- a/thirdparty/freetype/src/otvalid/otvcommn.c
+++ b/thirdparty/freetype/src/otvalid/otvcommn.c
@@ -4,7 +4,7 @@
*
* OpenType common tables validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvcommn.h b/thirdparty/freetype/src/otvalid/otvcommn.h
index f9926034a9..3b096ecca8 100644
--- a/thirdparty/freetype/src/otvalid/otvcommn.h
+++ b/thirdparty/freetype/src/otvalid/otvcommn.h
@@ -4,7 +4,7 @@
*
* OpenType common tables validation (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -105,10 +105,11 @@ FT_BEGIN_HEADER
FT_Byte* pp = (FT_Byte*)_size ## _p; \
\
\
- FT_TRACE3(( "\n" \
- "Invalid offset to optional table `%s'" \
- " set to zero.\n" \
- "\n", #_size )); \
+ FT_TRACE3(( "\n" )); \
+ FT_TRACE3(( "Invalid offset to optional table `%s'" \
+ " set to zero.\n", \
+ #_size )); \
+ FT_TRACE3(( "\n" )); \
\
_size = pp[0] = pp[1] = 0; \
} \
@@ -127,10 +128,11 @@ FT_BEGIN_HEADER
FT_Byte* pp = (FT_Byte*)_size ## _p; \
\
\
- FT_TRACE3(( "\n" \
- "Invalid offset to optional table `%s'" \
- " set to zero.\n" \
- "\n", #_size )); \
+ FT_TRACE3(( "\n" )); \
+ FT_TRACE3(( "Invalid offset to optional table `%s'" \
+ " set to zero.\n", \
+ #_size )); \
+ FT_TRACE3(( "\n" )); \
\
_size = pp[0] = pp[1] = pp[2] = pp[3] = 0; \
} \
@@ -178,24 +180,24 @@ FT_BEGIN_HEADER
#define OTV_ENTER \
FT_BEGIN_STMNT \
otvalid->debug_indent += 2; \
- FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \
+ FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \
FT_TRACE4(( "%s table\n", \
otvalid->debug_function_name[otvalid->nesting_level] )); \
FT_END_STMNT
-#define OTV_NAME_ENTER( name ) \
- FT_BEGIN_STMNT \
- otvalid->debug_indent += 2; \
- FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \
- FT_TRACE4(( "%s table\n", name )); \
+#define OTV_NAME_ENTER( name ) \
+ FT_BEGIN_STMNT \
+ otvalid->debug_indent += 2; \
+ FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \
+ FT_TRACE4(( "%s table\n", name )); \
FT_END_STMNT
#define OTV_EXIT otvalid->debug_indent -= 2
-#define OTV_TRACE( s ) \
- FT_BEGIN_STMNT \
- FT_TRACE4(( "%*.s", otvalid->debug_indent, 0 )); \
- FT_TRACE4( s ); \
+#define OTV_TRACE( s ) \
+ FT_BEGIN_STMNT \
+ FT_TRACE4(( "%*.s", otvalid->debug_indent, "" )); \
+ FT_TRACE4( s ); \
FT_END_STMNT
#else /* !FT_DEBUG_LEVEL_TRACE */
diff --git a/thirdparty/freetype/src/otvalid/otverror.h b/thirdparty/freetype/src/otvalid/otverror.h
index 979e9cbd9c..3e23234f36 100644
--- a/thirdparty/freetype/src/otvalid/otverror.h
+++ b/thirdparty/freetype/src/otvalid/otverror.h
@@ -4,7 +4,7 @@
*
* OpenType validation module error codes (specification only).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvgdef.c b/thirdparty/freetype/src/otvalid/otvgdef.c
index 88874b8474..5a160a4142 100644
--- a/thirdparty/freetype/src/otvalid/otvgdef.c
+++ b/thirdparty/freetype/src/otvalid/otvgdef.c
@@ -4,7 +4,7 @@
*
* OpenType GDEF table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvgpos.c b/thirdparty/freetype/src/otvalid/otvgpos.c
index 29d56f91e8..e0d4e420de 100644
--- a/thirdparty/freetype/src/otvalid/otvgpos.c
+++ b/thirdparty/freetype/src/otvalid/otvgpos.c
@@ -4,7 +4,7 @@
*
* OpenType GPOS table validation (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvgpos.h b/thirdparty/freetype/src/otvalid/otvgpos.h
index 06a03a0e6c..176a68883f 100644
--- a/thirdparty/freetype/src/otvalid/otvgpos.h
+++ b/thirdparty/freetype/src/otvalid/otvgpos.h
@@ -4,7 +4,7 @@
*
* OpenType GPOS table validator (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvgsub.c b/thirdparty/freetype/src/otvalid/otvgsub.c
index f0d563ba92..b426a17449 100644
--- a/thirdparty/freetype/src/otvalid/otvgsub.c
+++ b/thirdparty/freetype/src/otvalid/otvgsub.c
@@ -4,7 +4,7 @@
*
* OpenType GSUB table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvjstf.c b/thirdparty/freetype/src/otvalid/otvjstf.c
index 79de7b809d..404dda88a1 100644
--- a/thirdparty/freetype/src/otvalid/otvjstf.c
+++ b/thirdparty/freetype/src/otvalid/otvjstf.c
@@ -4,7 +4,7 @@
*
* OpenType JSTF table validation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/otvmath.c b/thirdparty/freetype/src/otvalid/otvmath.c
index dfdeaaba7e..b4bfabb62e 100644
--- a/thirdparty/freetype/src/otvalid/otvmath.c
+++ b/thirdparty/freetype/src/otvalid/otvmath.c
@@ -4,7 +4,7 @@
*
* OpenType MATH table validation (body).
*
- * Copyright (C) 2007-2020 by
+ * Copyright (C) 2007-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Written by George Williams.
@@ -141,7 +141,7 @@
OTV_OPTIONAL_TABLE( DeviceTableOffset );
- /* OTV_NAME_ENTER( "MathKern" );*/
+ /* OTV_NAME_ENTER( "MathKern" ); */
OTV_LIMIT_CHECK( 2 );
diff --git a/thirdparty/freetype/src/otvalid/otvmod.c b/thirdparty/freetype/src/otvalid/otvmod.c
index 0188b27018..b7d674b5e2 100644
--- a/thirdparty/freetype/src/otvalid/otvmod.c
+++ b/thirdparty/freetype/src/otvalid/otvmod.c
@@ -4,7 +4,7 @@
*
* FreeType's OpenType validation module implementation (body).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -53,7 +53,7 @@
if ( error )
goto Exit;
- if ( FT_ALLOC( *table, *table_len ) )
+ if ( FT_QALLOC( *table, *table_len ) )
goto Exit;
error = FT_Load_Sfnt_Table( face, tag, 0, *table, table_len );
@@ -94,7 +94,7 @@
*/
if ( face->num_glyphs > 0xFFFFL )
{
- FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08x) ",
+ FT_TRACE1(( "otv_validate: Invalid glyphs index (0x0000FFFF - 0x%08lx) ",
face->num_glyphs ));
FT_TRACE1(( "are not handled by OpenType tables\n" ));
num_glyphs = 0xFFFF;
diff --git a/thirdparty/freetype/src/otvalid/otvmod.h b/thirdparty/freetype/src/otvalid/otvmod.h
index efd6da035f..37c20e0023 100644
--- a/thirdparty/freetype/src/otvalid/otvmod.h
+++ b/thirdparty/freetype/src/otvalid/otvmod.h
@@ -5,7 +5,7 @@
* FreeType's OpenType validation module implementation
* (specification).
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/otvalid/rules.mk b/thirdparty/freetype/src/otvalid/rules.mk
deleted file mode 100644
index 7f0169fd89..0000000000
--- a/thirdparty/freetype/src/otvalid/rules.mk
+++ /dev/null
@@ -1,81 +0,0 @@
-#
-# FreeType 2 OpenType validation driver configuration rules
-#
-
-
-# Copyright (C) 2004-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# OTV driver directory
-#
-OTV_DIR := $(SRC_DIR)/otvalid
-
-
-# compilation flags for the driver
-#
-OTV_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(OTV_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# OTV driver sources (i.e., C files)
-#
-OTV_DRV_SRC := $(OTV_DIR)/otvbase.c \
- $(OTV_DIR)/otvcommn.c \
- $(OTV_DIR)/otvgdef.c \
- $(OTV_DIR)/otvgpos.c \
- $(OTV_DIR)/otvgsub.c \
- $(OTV_DIR)/otvjstf.c \
- $(OTV_DIR)/otvmath.c \
- $(OTV_DIR)/otvmod.c
-
-# OTV driver headers
-#
-OTV_DRV_H := $(OTV_DIR)/otvalid.h \
- $(OTV_DIR)/otvcommn.h \
- $(OTV_DIR)/otverror.h \
- $(OTV_DIR)/otvgpos.h \
- $(OTV_DIR)/otvmod.h
-
-
-# OTV driver object(s)
-#
-# OTV_DRV_OBJ_M is used during `multi' builds.
-# OTV_DRV_OBJ_S is used during `single' builds.
-#
-OTV_DRV_OBJ_M := $(OTV_DRV_SRC:$(OTV_DIR)/%.c=$(OBJ_DIR)/%.$O)
-OTV_DRV_OBJ_S := $(OBJ_DIR)/otvalid.$O
-
-# OTV driver source file for single build
-#
-OTV_DRV_SRC_S := $(OTV_DIR)/otvalid.c
-
-
-# OTV driver - single object
-#
-$(OTV_DRV_OBJ_S): $(OTV_DRV_SRC_S) $(OTV_DRV_SRC) \
- $(FREETYPE_H) $(OTV_DRV_H)
- $(OTV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(OTV_DRV_SRC_S))
-
-
-# OTV driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(OTV_DIR)/%.c $(FREETYPE_H) $(OTV_DRV_H)
- $(OTV_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(OTV_DRV_OBJ_S)
-DRV_OBJS_M += $(OTV_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/pcf/module.mk b/thirdparty/freetype/src/pcf/module.mk
deleted file mode 100644
index df383ff0fb..0000000000
--- a/thirdparty/freetype/src/pcf/module.mk
+++ /dev/null
@@ -1,34 +0,0 @@
-#
-# FreeType 2 PCF module definition
-#
-
-# Copyright 2000, 2006 by
-# Francesco Zappa Nardelli
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-
-FTMODULE_H_COMMANDS += PCF_DRIVER
-
-define PCF_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, pcf_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)pcf $(ECHO_DRIVER_DESC)pcf bitmap fonts$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/pcf/pcfdrivr.c b/thirdparty/freetype/src/pcf/pcfdrivr.c
index e9dd51752e..2a40af9e99 100644
--- a/thirdparty/freetype/src/pcf/pcfdrivr.c
+++ b/thirdparty/freetype/src/pcf/pcfdrivr.c
@@ -606,7 +606,7 @@ THE SOFTWARE.
if ( prop->value.l > 0x7FFFFFFFL ||
prop->value.l < ( -1 - 0x7FFFFFFFL ) )
{
- FT_TRACE1(( "pcf_get_bdf_property:"
+ FT_TRACE2(( "pcf_get_bdf_property:"
" too large integer 0x%lx is truncated\n",
prop->value.l ));
}
@@ -705,7 +705,7 @@ THE SOFTWARE.
#endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
- FT_TRACE0(( "pcf_property_set: missing property `%s'\n",
+ FT_TRACE2(( "pcf_property_set: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -743,7 +743,7 @@ THE SOFTWARE.
#endif /* !PCF_CONFIG_OPTION_LONG_FAMILY_NAMES */
- FT_TRACE0(( "pcf_property_get: missing property `%s'\n",
+ FT_TRACE2(( "pcf_property_get: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
diff --git a/thirdparty/freetype/src/pcf/pcfread.c b/thirdparty/freetype/src/pcf/pcfread.c
index 8817682cdf..e60a0a5141 100644
--- a/thirdparty/freetype/src/pcf/pcfread.c
+++ b/thirdparty/freetype/src/pcf/pcfread.c
@@ -127,7 +127,7 @@ THE SOFTWARE.
toc->count = FT_MIN( stream->size >> 4, 9 );
}
- if ( FT_NEW_ARRAY( face->toc.tables, toc->count ) )
+ if ( FT_QNEW_ARRAY( face->toc.tables, toc->count ) )
return error;
tables = face->toc.tables;
@@ -238,7 +238,7 @@ THE SOFTWARE.
{
for ( j = 0; j < sizeof ( tableNames ) / sizeof ( tableNames[0] );
j++ )
- if ( tables[i].type == (FT_UInt)( 1 << j ) )
+ if ( tables[i].type == 1UL << j )
name = tableNames[j];
FT_TRACE4(( " %d: type=%s, format=0x%lX,"
@@ -501,8 +501,8 @@ THE SOFTWARE.
if ( FT_READ_ULONG_LE( format ) )
goto Bail;
- FT_TRACE4(( "pcf_get_properties:\n"
- " format: 0x%lX (%s)\n",
+ FT_TRACE4(( "pcf_get_properties:\n" ));
+ FT_TRACE4(( " format: 0x%lX (%s)\n",
format,
PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" ));
@@ -540,7 +540,7 @@ THE SOFTWARE.
face->nprops = (int)nprops;
- if ( FT_NEW_ARRAY( props, nprops ) )
+ if ( FT_QNEW_ARRAY( props, nprops ) )
goto Bail;
for ( i = 0; i < nprops; i++ )
@@ -607,13 +607,13 @@ THE SOFTWARE.
}
/* allocate one more byte so that we have a final null byte */
- if ( FT_NEW_ARRAY( strings, string_size + 1 ) )
+ if ( FT_QALLOC( strings, string_size + 1 ) ||
+ FT_STREAM_READ( strings, string_size ) )
goto Bail;
- error = FT_Stream_Read( stream, (FT_Byte*)strings, string_size );
- if ( error )
- goto Bail;
+ strings[string_size] = '\0';
+ /* zero out in case of failure */
if ( FT_NEW_ARRAY( properties, nprops ) )
goto Bail;
@@ -697,8 +697,8 @@ THE SOFTWARE.
if ( FT_READ_ULONG_LE( format ) )
goto Bail;
- FT_TRACE4(( "pcf_get_metrics:\n"
- " format: 0x%lX (%s, %s)\n",
+ FT_TRACE4(( "pcf_get_metrics:\n" ));
+ FT_TRACE4(( " format: 0x%lX (%s, %s)\n",
format,
PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB",
PCF_FORMAT_MATCH( format, PCF_COMPRESSED_METRICS ) ?
@@ -767,7 +767,7 @@ THE SOFTWARE.
face->nmetrics = nmetrics + 1;
- if ( FT_NEW_ARRAY( face->metrics, face->nmetrics ) )
+ if ( FT_QNEW_ARRAY( face->metrics, face->nmetrics ) )
return error;
/* we handle glyph index 0 later on */
@@ -840,17 +840,16 @@ THE SOFTWARE.
FT_Stream_ExitFrame( stream );
- FT_TRACE4(( "pcf_get_bitmaps:\n"
- " format: 0x%lX\n"
- " (%s, %s,\n"
- " padding=%d bit%s, scanning=%d bit%s)\n",
- format,
+ FT_TRACE4(( "pcf_get_bitmaps:\n" ));
+ FT_TRACE4(( " format: 0x%lX\n", format ));
+ FT_TRACE4(( " (%s, %s,\n",
PCF_BYTE_ORDER( format ) == MSBFirst
? "most significant byte first"
: "least significant byte first",
PCF_BIT_ORDER( format ) == MSBFirst
? "most significant bit first"
- : "least significant bit first",
+ : "least significant bit first" ));
+ FT_TRACE4(( " padding=%d bit%s, scanning=%d bit%s)\n",
8 << PCF_GLYPH_PAD_INDEX( format ),
( 8 << PCF_GLYPH_PAD_INDEX( format ) ) == 1 ? "" : "s",
8 << PCF_SCAN_UNIT_INDEX( format ),
@@ -1001,8 +1000,8 @@ THE SOFTWARE.
if ( FT_READ_ULONG_LE( format ) )
goto Bail;
- FT_TRACE4(( "pcf_get_encodings:\n"
- " format: 0x%lX (%s)\n",
+ FT_TRACE4(( "pcf_get_encodings:\n" ));
+ FT_TRACE4(( " format: 0x%lX (%s)\n",
format,
PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB" ));
@@ -1021,11 +1020,11 @@ THE SOFTWARE.
goto Bail;
}
- FT_TRACE4(( " firstCol 0x%X, lastCol 0x%X\n"
- " firstRow 0x%X, lastRow 0x%X\n"
- " defaultChar 0x%X\n",
- enc->firstCol, enc->lastCol,
- enc->firstRow, enc->lastRow,
+ FT_TRACE4(( " firstCol 0x%X, lastCol 0x%X\n",
+ enc->firstCol, enc->lastCol ));
+ FT_TRACE4(( " firstRow 0x%X, lastRow 0x%X\n",
+ enc->firstRow, enc->lastRow ));
+ FT_TRACE4(( " defaultChar 0x%X\n",
enc->defaultChar ));
/* sanity checks; we limit numbers of rows and columns to 256 */
@@ -1088,8 +1087,8 @@ THE SOFTWARE.
if ( defaultCharEncodingOffset == 0xFFFF )
{
FT_TRACE0(( "pcf_get_encodings:"
- " No glyph for default character,\n"
- " "
+ " No glyph for default character,\n" ));
+ FT_TRACE0(( " "
" setting it to the first glyph of the font\n" ));
defaultCharEncodingOffset = 1;
}
@@ -1100,8 +1099,8 @@ THE SOFTWARE.
if ( defaultCharEncodingOffset >= face->nmetrics )
{
FT_TRACE0(( "pcf_get_encodings:"
- " Invalid glyph index for default character,\n"
- " "
+ " Invalid glyph index for default character,\n" ));
+ FT_TRACE0(( " "
" setting it to the first glyph of the font\n" ));
defaultCharEncodingOffset = 1;
}
@@ -1208,10 +1207,10 @@ THE SOFTWARE.
if ( FT_READ_ULONG_LE( format ) )
goto Bail;
- FT_TRACE4(( "pcf_get_accel%s:\n"
- " format: 0x%lX (%s, %s)\n",
+ FT_TRACE4(( "pcf_get_accel%s:\n",
type == PCF_BDF_ACCELERATORS ? " (getting BDF accelerators)"
- : "",
+ : "" ));
+ FT_TRACE4(( " format: 0x%lX (%s, %s)\n",
format,
PCF_BYTE_ORDER( format ) == MSBFirst ? "MSB" : "LSB",
PCF_FORMAT_MATCH( format, PCF_ACCEL_W_INKBOUNDS ) ?
@@ -1233,16 +1232,16 @@ THE SOFTWARE.
}
FT_TRACE5(( " noOverlap=%s, constantMetrics=%s,"
- " terminalFont=%s, constantWidth=%s\n"
- " inkInside=%s, inkMetrics=%s, drawDirection=%s\n"
- " fontAscent=%ld, fontDescent=%ld, maxOverlap=%ld\n",
+ " terminalFont=%s, constantWidth=%s\n",
accel->noOverlap ? "yes" : "no",
accel->constantMetrics ? "yes" : "no",
accel->terminalFont ? "yes" : "no",
- accel->constantWidth ? "yes" : "no",
+ accel->constantWidth ? "yes" : "no" ));
+ FT_TRACE5(( " inkInside=%s, inkMetrics=%s, drawDirection=%s\n",
accel->inkInside ? "yes" : "no",
accel->inkMetrics ? "yes" : "no",
- accel->drawDirection ? "RTL" : "LTR",
+ accel->drawDirection ? "RTL" : "LTR" ));
+ FT_TRACE5(( " fontAscent=%ld, fontDescent=%ld, maxOverlap=%ld\n",
accel->fontAscent,
accel->fontDescent,
accel->maxOverlap ));
@@ -1369,7 +1368,7 @@ THE SOFTWARE.
char* s;
- if ( FT_ALLOC( face->style_name, len ) )
+ if ( FT_QALLOC( face->style_name, len ) )
return error;
s = face->style_name;
@@ -1533,7 +1532,7 @@ THE SOFTWARE.
{
l += ft_strlen( foundry_prop->value.atom ) + 1;
- if ( FT_NEW_ARRAY( root->family_name, l ) )
+ if ( FT_QALLOC( root->family_name, l ) )
goto Exit;
ft_strcpy( root->family_name, foundry_prop->value.atom );
@@ -1542,7 +1541,7 @@ THE SOFTWARE.
}
else
{
- if ( FT_NEW_ARRAY( root->family_name, l ) )
+ if ( FT_QALLOC( root->family_name, l ) )
goto Exit;
ft_strcpy( root->family_name, prop->value.atom );
@@ -1566,7 +1565,7 @@ THE SOFTWARE.
root->num_glyphs = (FT_Long)face->nmetrics;
root->num_fixed_sizes = 1;
- if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
+ if ( FT_NEW( root->available_sizes ) )
goto Exit;
{
@@ -1574,8 +1573,6 @@ THE SOFTWARE.
FT_Short resolution_x = 0, resolution_y = 0;
- FT_ZERO( bsize );
-
/* for simplicity, we take absolute values of integer properties */
#if 0
@@ -1616,7 +1613,7 @@ THE SOFTWARE.
else
{
/* this is a heuristical value */
- bsize->width = (FT_Short)FT_MulDiv( bsize->height, 2, 3 );
+ bsize->width = ( bsize->height * 2 + 1 ) / 3;
}
prop = pcf_find_property( face, "POINT_SIZE" );
diff --git a/thirdparty/freetype/src/pcf/rules.mk b/thirdparty/freetype/src/pcf/rules.mk
deleted file mode 100644
index 1b55daf4f4..0000000000
--- a/thirdparty/freetype/src/pcf/rules.mk
+++ /dev/null
@@ -1,82 +0,0 @@
-#
-# FreeType 2 pcf driver configuration rules
-#
-
-
-# Copyright (C) 2000, 2001, 2003, 2008 by
-# Francesco Zappa Nardelli
-#
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-#
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-#
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
-# THE SOFTWARE.
-
-
-# pcf driver directory
-#
-PCF_DIR := $(SRC_DIR)/pcf
-
-
-PCF_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(PCF_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# pcf driver sources (i.e., C files)
-#
-PCF_DRV_SRC := $(PCF_DIR)/pcfdrivr.c \
- $(PCF_DIR)/pcfread.c \
- $(PCF_DIR)/pcfutil.c
-
-# pcf driver headers
-#
-PCF_DRV_H := $(PCF_DRV_SRC:%.c=%.h) \
- $(PCF_DIR)/pcf.h \
- $(PCF_DIR)/pcferror.h
-
-# pcf driver object(s)
-#
-# PCF_DRV_OBJ_M is used during `multi' builds
-# PCF_DRV_OBJ_S is used during `single' builds
-#
-PCF_DRV_OBJ_M := $(PCF_DRV_SRC:$(PCF_DIR)/%.c=$(OBJ_DIR)/%.$O)
-PCF_DRV_OBJ_S := $(OBJ_DIR)/pcf.$O
-
-# pcf driver source file for single build
-#
-PCF_DRV_SRC_S := $(PCF_DIR)/pcf.c
-
-
-# pcf driver - single object
-#
-$(PCF_DRV_OBJ_S): $(PCF_DRV_SRC_S) $(PCF_DRV_SRC) $(FREETYPE_H) $(PCF_DRV_H)
- $(PCF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PCF_DRV_SRC_S))
-
-
-# pcf driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(PCF_DIR)/%.c $(FREETYPE_H) $(PCF_DRV_H)
- $(PCF_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(PCF_DRV_OBJ_S)
-DRV_OBJS_M += $(PCF_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/pfr/module.mk b/thirdparty/freetype/src/pfr/module.mk
deleted file mode 100644
index 762353dda2..0000000000
--- a/thirdparty/freetype/src/pfr/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 PFR module definition
-#
-
-
-# Copyright (C) 2002-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += PFR_DRIVER
-
-define PFR_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, pfr_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)pfr $(ECHO_DRIVER_DESC)PFR/TrueDoc font files with extension *.pfr$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/pfr/pfr.c b/thirdparty/freetype/src/pfr/pfr.c
index 9264c77df2..4058ad5652 100644
--- a/thirdparty/freetype/src/pfr/pfr.c
+++ b/thirdparty/freetype/src/pfr/pfr.c
@@ -4,7 +4,7 @@
*
* FreeType PFR driver component.
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrcmap.c b/thirdparty/freetype/src/pfr/pfrcmap.c
index ebc7b84393..6a7f573594 100644
--- a/thirdparty/freetype/src/pfr/pfrcmap.c
+++ b/thirdparty/freetype/src/pfr/pfrcmap.c
@@ -4,7 +4,7 @@
*
* FreeType PFR cmap handling (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrcmap.h b/thirdparty/freetype/src/pfr/pfrcmap.h
index a6d920c30b..17c02a2b4b 100644
--- a/thirdparty/freetype/src/pfr/pfrcmap.h
+++ b/thirdparty/freetype/src/pfr/pfrcmap.h
@@ -4,7 +4,7 @@
*
* FreeType PFR cmap handling (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrdrivr.c b/thirdparty/freetype/src/pfr/pfrdrivr.c
index b14320875a..16b8f79471 100644
--- a/thirdparty/freetype/src/pfr/pfrdrivr.c
+++ b/thirdparty/freetype/src/pfr/pfrdrivr.c
@@ -4,7 +4,7 @@
*
* FreeType PFR driver interface (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrdrivr.h b/thirdparty/freetype/src/pfr/pfrdrivr.h
index 7646b4d1bd..6ff16fea06 100644
--- a/thirdparty/freetype/src/pfr/pfrdrivr.h
+++ b/thirdparty/freetype/src/pfr/pfrdrivr.h
@@ -4,7 +4,7 @@
*
* High-level Type PFR driver interface (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrerror.h b/thirdparty/freetype/src/pfr/pfrerror.h
index 33460ef4fd..255696efed 100644
--- a/thirdparty/freetype/src/pfr/pfrerror.h
+++ b/thirdparty/freetype/src/pfr/pfrerror.h
@@ -4,7 +4,7 @@
*
* PFR error codes (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrgload.c b/thirdparty/freetype/src/pfr/pfrgload.c
index aa640c3b07..b400042a86 100644
--- a/thirdparty/freetype/src/pfr/pfrgload.c
+++ b/thirdparty/freetype/src/pfr/pfrgload.c
@@ -4,7 +4,7 @@
*
* FreeType PFR glyph loader (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrgload.h b/thirdparty/freetype/src/pfr/pfrgload.h
index f356b4c75b..b726d564fc 100644
--- a/thirdparty/freetype/src/pfr/pfrgload.h
+++ b/thirdparty/freetype/src/pfr/pfrgload.h
@@ -4,7 +4,7 @@
*
* FreeType PFR glyph loader (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrload.c b/thirdparty/freetype/src/pfr/pfrload.c
index a2832e55c7..a9c1e2834a 100644
--- a/thirdparty/freetype/src/pfr/pfrload.c
+++ b/thirdparty/freetype/src/pfr/pfrload.c
@@ -4,7 +4,7 @@
*
* FreeType PFR loader (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -565,7 +565,7 @@
if ( phy_font->font_id )
goto Exit;
- if ( FT_ALLOC( phy_font->font_id, len + 1 ) )
+ if ( FT_QALLOC( phy_font->font_id, len + 1 ) )
goto Exit;
/* copy font ID name, and terminate it for safety */
@@ -601,7 +601,7 @@
PFR_CHECK( count * 2 );
- if ( FT_NEW_ARRAY( snaps, count ) )
+ if ( FT_QNEW_ARRAY( snaps, count ) )
goto Exit;
phy_font->vertical.stem_snaps = snaps;
@@ -761,7 +761,7 @@
if ( ok )
{
- if ( FT_ALLOC( result, len + 1 ) )
+ if ( FT_QALLOC( result, len + 1 ) )
goto Exit;
FT_MEM_COPY( result, p, len );
@@ -953,7 +953,7 @@
PFR_CHECK( count * 2 );
- if ( FT_NEW_ARRAY( phy_font->blue_values, count ) )
+ if ( FT_QNEW_ARRAY( phy_font->blue_values, count ) )
goto Fail;
for ( n = 0; n < count; n++ )
diff --git a/thirdparty/freetype/src/pfr/pfrload.h b/thirdparty/freetype/src/pfr/pfrload.h
index 7615b9ce14..4f467d1bad 100644
--- a/thirdparty/freetype/src/pfr/pfrload.h
+++ b/thirdparty/freetype/src/pfr/pfrload.h
@@ -4,7 +4,7 @@
*
* FreeType PFR loader (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrobjs.c b/thirdparty/freetype/src/pfr/pfrobjs.c
index 918e7fd496..3080cb650b 100644
--- a/thirdparty/freetype/src/pfr/pfrobjs.c
+++ b/thirdparty/freetype/src/pfr/pfrobjs.c
@@ -4,7 +4,7 @@
*
* FreeType PFR object methods (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -83,7 +83,11 @@
/* load the header and check it */
error = pfr_header_load( &face->header, stream );
if ( error )
+ {
+ FT_TRACE2(( " not a PFR font\n" ));
+ error = FT_THROW( Unknown_File_Format );
goto Exit;
+ }
if ( !pfr_header_check( &face->header ) )
{
@@ -213,7 +217,7 @@
FT_Memory memory = pfrface->stream->memory;
- if ( FT_NEW_ARRAY( pfrface->available_sizes, count ) )
+ if ( FT_QNEW_ARRAY( pfrface->available_sizes, count ) )
goto Exit;
size = pfrface->available_sizes;
diff --git a/thirdparty/freetype/src/pfr/pfrobjs.h b/thirdparty/freetype/src/pfr/pfrobjs.h
index 808822f1c4..70b05395b8 100644
--- a/thirdparty/freetype/src/pfr/pfrobjs.h
+++ b/thirdparty/freetype/src/pfr/pfrobjs.h
@@ -4,7 +4,7 @@
*
* FreeType PFR object methods (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrsbit.c b/thirdparty/freetype/src/pfr/pfrsbit.c
index a6691e6d18..255fd58772 100644
--- a/thirdparty/freetype/src/pfr/pfrsbit.c
+++ b/thirdparty/freetype/src/pfr/pfrsbit.c
@@ -4,7 +4,7 @@
*
* FreeType PFR bitmap loader (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -310,8 +310,8 @@
if ( lim > limit )
{
FT_TRACE0(( "pfr_lookup_bitmap_data:"
- " number of bitmap records too large,\n"
- " "
+ " number of bitmap records too large,\n" ));
+ FT_TRACE0(( " "
" thus ignoring all bitmaps in this strike\n" ));
*flags &= ~PFR_BITMAP_VALID_CHARCODES;
}
@@ -328,8 +328,8 @@
if ( (FT_Long)code <= prev_code )
{
FT_TRACE0(( "pfr_lookup_bitmap_data:"
- " bitmap records are not sorted,\n"
- " "
+ " bitmap records are not sorted,\n" ));
+ FT_TRACE0(( " "
" thus ignoring all bitmaps in this strike\n" ));
*flags &= ~PFR_BITMAP_VALID_CHARCODES;
break;
diff --git a/thirdparty/freetype/src/pfr/pfrsbit.h b/thirdparty/freetype/src/pfr/pfrsbit.h
index 8cb0de0d25..f50d8013aa 100644
--- a/thirdparty/freetype/src/pfr/pfrsbit.h
+++ b/thirdparty/freetype/src/pfr/pfrsbit.h
@@ -4,7 +4,7 @@
*
* FreeType PFR bitmap loader (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pfr/pfrtypes.h b/thirdparty/freetype/src/pfr/pfrtypes.h
index 06fb82d51a..dc4fead700 100644
--- a/thirdparty/freetype/src/pfr/pfrtypes.h
+++ b/thirdparty/freetype/src/pfr/pfrtypes.h
@@ -4,7 +4,7 @@
*
* FreeType PFR data structures (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -109,7 +109,7 @@ FT_BEGIN_HEADER
#define PFR_BITMAP_2BYTE_SIZE 0x02U
#define PFR_BITMAP_3BYTE_OFFSET 0x04U
- /*not part of the specification but used for implementation */
+ /* not part of the specification but used for implementation */
#define PFR_BITMAP_CHARCODES_VALIDATED 0x40U
#define PFR_BITMAP_VALID_CHARCODES 0x80U
diff --git a/thirdparty/freetype/src/pfr/rules.mk b/thirdparty/freetype/src/pfr/rules.mk
deleted file mode 100644
index a1fe82baff..0000000000
--- a/thirdparty/freetype/src/pfr/rules.mk
+++ /dev/null
@@ -1,76 +0,0 @@
-#
-# FreeType 2 PFR driver configuration rules
-#
-
-
-# Copyright (C) 2002-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# pfr driver directory
-#
-PFR_DIR := $(SRC_DIR)/pfr
-
-
-# compilation flags for the driver
-#
-PFR_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(PFR_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# pfr driver sources (i.e., C files)
-#
-PFR_DRV_SRC := $(PFR_DIR)/pfrload.c \
- $(PFR_DIR)/pfrgload.c \
- $(PFR_DIR)/pfrcmap.c \
- $(PFR_DIR)/pfrdrivr.c \
- $(PFR_DIR)/pfrsbit.c \
- $(PFR_DIR)/pfrobjs.c
-
-# pfr driver headers
-#
-PFR_DRV_H := $(PFR_DRV_SRC:%.c=%.h) \
- $(PFR_DIR)/pfrerror.h \
- $(PFR_DIR)/pfrtypes.h
-
-
-# Pfr driver object(s)
-#
-# PFR_DRV_OBJ_M is used during `multi' builds
-# PFR_DRV_OBJ_S is used during `single' builds
-#
-PFR_DRV_OBJ_M := $(PFR_DRV_SRC:$(PFR_DIR)/%.c=$(OBJ_DIR)/%.$O)
-PFR_DRV_OBJ_S := $(OBJ_DIR)/pfr.$O
-
-# pfr driver source file for single build
-#
-PFR_DRV_SRC_S := $(PFR_DIR)/pfr.c
-
-
-# pfr driver - single object
-#
-$(PFR_DRV_OBJ_S): $(PFR_DRV_SRC_S) $(PFR_DRV_SRC) $(FREETYPE_H) $(PFR_DRV_H)
- $(PFR_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PFR_DRV_SRC_S))
-
-
-# pfr driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(PFR_DIR)/%.c $(FREETYPE_H) $(PFR_DRV_H)
- $(PFR_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(PFR_DRV_OBJ_S)
-DRV_OBJS_M += $(PFR_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/psaux/afmparse.c b/thirdparty/freetype/src/psaux/afmparse.c
index 2d6a0d9a12..0ad1760518 100644
--- a/thirdparty/freetype/src/psaux/afmparse.c
+++ b/thirdparty/freetype/src/psaux/afmparse.c
@@ -4,7 +4,7 @@
*
* AFM parser (body).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -29,6 +29,16 @@
/**************************************************************************
*
+ * The macro FT_COMPONENT is used in trace mode. It is an implicit
+ * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+ * messages during execution.
+ */
+#undef FT_COMPONENT
+#define FT_COMPONENT afmparse
+
+
+ /**************************************************************************
+ *
* AFM_Stream
*
* The use of AFM_Stream is largely inspired by parseAFM.[ch] from t1lib.
@@ -586,21 +596,39 @@
static FT_Error
afm_parse_track_kern( AFM_Parser parser )
{
- AFM_FontInfo fi = parser->FontInfo;
+ AFM_FontInfo fi = parser->FontInfo;
+ AFM_Stream stream = parser->stream;
AFM_TrackKern tk;
- char* key;
- FT_Offset len;
- int n = -1;
- FT_Int tmp;
+
+ char* key;
+ FT_Offset len;
+ int n = -1;
+ FT_Int tmp;
if ( afm_parser_read_int( parser, &tmp ) )
goto Fail;
if ( tmp < 0 )
+ {
+ FT_ERROR(( "afm_parse_track_kern: invalid number of track kerns\n" ));
goto Fail;
+ }
fi->NumTrackKern = (FT_UInt)tmp;
+ FT_TRACE3(( "afm_parse_track_kern: %u track kern%s expected\n",
+ fi->NumTrackKern,
+ fi->NumTrackKern == 1 ? "" : "s" ));
+
+ /* Rough sanity check: The minimum line length of the `TrackKern` */
+ /* command is 20 characters (including the EOL character). */
+ if ( (FT_ULong)( stream->limit - stream->cursor ) / 20 <
+ fi->NumTrackKern )
+ {
+ FT_ERROR(( "afm_parse_track_kern:"
+ " number of track kern entries exceeds stream size\n" ));
+ goto Fail;
+ }
if ( fi->NumTrackKern )
{
@@ -623,7 +651,10 @@
n++;
if ( n >= (int)fi->NumTrackKern )
- goto Fail;
+ {
+ FT_ERROR(( "afm_parse_track_kern: too many track kern data\n" ));
+ goto Fail;
+ }
tk = fi->TrackKerns + n;
@@ -633,7 +664,12 @@
shared_vals[3].type = AFM_VALUE_TYPE_FIXED;
shared_vals[4].type = AFM_VALUE_TYPE_FIXED;
if ( afm_parser_read_vals( parser, shared_vals, 5 ) != 5 )
+ {
+ FT_ERROR(( "afm_parse_track_kern:"
+ " insufficient number of parameters for entry %d\n",
+ n ));
goto Fail;
+ }
tk->degree = shared_vals[0].u.i;
tk->min_ptsize = shared_vals[1].u.f;
@@ -646,7 +682,19 @@
case AFM_TOKEN_ENDTRACKKERN:
case AFM_TOKEN_ENDKERNDATA:
case AFM_TOKEN_ENDFONTMETRICS:
- fi->NumTrackKern = (FT_UInt)( n + 1 );
+ tmp = n + 1;
+ if ( (FT_UInt)tmp != fi->NumTrackKern )
+ {
+ FT_TRACE1(( "afm_parse_track_kern: %s%d track kern entr%s seen\n",
+ tmp == 0 ? "" : "only ",
+ tmp,
+ tmp == 1 ? "y" : "ies" ));
+ fi->NumTrackKern = (FT_UInt)tmp;
+ }
+ else
+ FT_TRACE3(( "afm_parse_track_kern: %d track kern entr%s seen\n",
+ tmp,
+ tmp == 1 ? "y" : "ies" ));
return FT_Err_Ok;
case AFM_TOKEN_UNKNOWN:
@@ -667,7 +715,7 @@
/* compare two kerning pairs */
- FT_CALLBACK_DEF( int )
+ FT_COMPARE_DEF( int )
afm_compare_kern_pairs( const void* a,
const void* b )
{
@@ -690,7 +738,8 @@
static FT_Error
afm_parse_kern_pairs( AFM_Parser parser )
{
- AFM_FontInfo fi = parser->FontInfo;
+ AFM_FontInfo fi = parser->FontInfo;
+ AFM_Stream stream = parser->stream;
AFM_KernPair kp;
char* key;
FT_Offset len;
@@ -702,9 +751,26 @@
goto Fail;
if ( tmp < 0 )
+ {
+ FT_ERROR(( "afm_parse_kern_pairs: invalid number of kern pairs\n" ));
goto Fail;
+ }
fi->NumKernPair = (FT_UInt)tmp;
+ FT_TRACE3(( "afm_parse_kern_pairs: %u kern pair%s expected\n",
+ fi->NumKernPair,
+ fi->NumKernPair == 1 ? "" : "s" ));
+
+ /* Rough sanity check: The minimum line length of the `KP`, */
+ /* `KPH`,`KPX`, and `KPY` commands is 10 characters (including */
+ /* the EOL character). */
+ if ( (FT_ULong)( stream->limit - stream->cursor ) / 10 <
+ fi->NumKernPair )
+ {
+ FT_ERROR(( "afm_parse_kern_pairs:"
+ " number of kern pairs exceeds stream size\n" ));
+ goto Fail;
+ }
if ( fi->NumKernPair )
{
@@ -734,7 +800,10 @@
n++;
if ( n >= (int)fi->NumKernPair )
+ {
+ FT_ERROR(( "afm_parse_kern_pairs: too many kern pairs\n" ));
goto Fail;
+ }
kp = fi->KernPairs + n;
@@ -744,7 +813,12 @@
shared_vals[3].type = AFM_VALUE_TYPE_INTEGER;
r = afm_parser_read_vals( parser, shared_vals, 4 );
if ( r < 3 )
+ {
+ FT_ERROR(( "afm_parse_kern_pairs:"
+ " insufficient number of parameters for entry %d\n",
+ n ));
goto Fail;
+ }
/* index values can't be negative */
kp->index1 = shared_vals[0].u.u;
@@ -766,7 +840,20 @@
case AFM_TOKEN_ENDKERNPAIRS:
case AFM_TOKEN_ENDKERNDATA:
case AFM_TOKEN_ENDFONTMETRICS:
- fi->NumKernPair = (FT_UInt)( n + 1 );
+ tmp = n + 1;
+ if ( (FT_UInt)tmp != fi->NumKernPair )
+ {
+ FT_TRACE1(( "afm_parse_kern_pairs: %s%d kern pair%s seen\n",
+ tmp == 0 ? "" : "only ",
+ tmp,
+ tmp == 1 ? "" : "s" ));
+ fi->NumKernPair = (FT_UInt)tmp;
+ }
+ else
+ FT_TRACE3(( "afm_parse_kern_pairs: %d kern pair%s seen\n",
+ tmp,
+ tmp == 1 ? "" : "s" ));
+
ft_qsort( fi->KernPairs, fi->NumKernPair,
sizeof ( AFM_KernPairRec ),
afm_compare_kern_pairs );
@@ -792,22 +879,43 @@
char* key;
FT_Offset len;
+ int have_trackkern = 0;
+ int have_kernpairs = 0;
+
while ( ( key = afm_parser_next_key( parser, 1, &len ) ) != 0 )
{
switch ( afm_tokenize( key, len ) )
{
case AFM_TOKEN_STARTTRACKKERN:
+ if ( have_trackkern )
+ {
+ FT_ERROR(( "afm_parse_kern_data:"
+ " invalid second horizontal track kern section\n" ));
+ goto Fail;
+ }
+
error = afm_parse_track_kern( parser );
if ( error )
return error;
+
+ have_trackkern = 1;
break;
case AFM_TOKEN_STARTKERNPAIRS:
case AFM_TOKEN_STARTKERNPAIRS0:
+ if ( have_kernpairs )
+ {
+ FT_ERROR(( "afm_parse_kern_data:"
+ " invalid second horizontal kern pair section\n" ));
+ goto Fail;
+ }
+
error = afm_parse_kern_pairs( parser );
if ( error )
return error;
+
+ have_kernpairs = 1;
break;
case AFM_TOKEN_ENDKERNDATA:
diff --git a/thirdparty/freetype/src/psaux/afmparse.h b/thirdparty/freetype/src/psaux/afmparse.h
index 16a3a3e902..44b05b2cac 100644
--- a/thirdparty/freetype/src/psaux/afmparse.h
+++ b/thirdparty/freetype/src/psaux/afmparse.h
@@ -4,7 +4,7 @@
*
* AFM parser (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/cffdecode.c b/thirdparty/freetype/src/psaux/cffdecode.c
index 3d2da1e03c..29b68a8e4f 100644
--- a/thirdparty/freetype/src/psaux/cffdecode.c
+++ b/thirdparty/freetype/src/psaux/cffdecode.c
@@ -4,7 +4,7 @@
*
* PostScript CFF (Type 2) decoding routines (body).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -1871,7 +1871,7 @@
case cff_op_put:
{
FT_Fixed val = args[0];
- FT_Int idx = (FT_Int)( args[1] >> 16 );
+ FT_UInt idx = (FT_UInt)( args[1] >> 16 );
FT_TRACE4(( " put\n" ));
@@ -1880,20 +1880,20 @@
/* didn't give a hard-coded size limit of the temporary */
/* storage array; instead, an argument of the */
/* `MultipleMaster' operator set the size */
- if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS )
+ if ( idx < CFF_MAX_TRANS_ELEMENTS )
decoder->buildchar[idx] = val;
}
break;
case cff_op_get:
{
- FT_Int idx = (FT_Int)( args[0] >> 16 );
+ FT_UInt idx = (FT_UInt)( args[0] >> 16 );
FT_Fixed val = 0;
FT_TRACE4(( " get\n" ));
- if ( idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS )
+ if ( idx < CFF_MAX_TRANS_ELEMENTS )
val = decoder->buildchar[idx];
args[0] = val;
@@ -1914,9 +1914,9 @@
/* this operator was removed from the Type2 specification */
/* in version 16-March-2000 */
{
- FT_Int reg_idx = (FT_Int)args[0];
- FT_Int idx = (FT_Int)args[1];
- FT_Int count = (FT_Int)args[2];
+ FT_UInt reg_idx = (FT_UInt)args[0];
+ FT_UInt idx = (FT_UInt)args[1];
+ FT_UInt count = (FT_UInt)args[2];
FT_TRACE4(( " load\n" ));
@@ -1924,11 +1924,11 @@
/* since we currently don't handle interpolation of multiple */
/* master fonts, we store a vector [1 0 0 ...] in the */
/* temporary storage array regardless of the Registry index */
- if ( reg_idx >= 0 && reg_idx <= 2 &&
- idx >= 0 && idx < CFF_MAX_TRANS_ELEMENTS &&
- count >= 0 && count <= num_axes )
+ if ( reg_idx <= 2 &&
+ idx < CFF_MAX_TRANS_ELEMENTS &&
+ count <= num_axes )
{
- FT_Int end, i;
+ FT_UInt end, i;
end = FT_MIN( idx + count, CFF_MAX_TRANS_ELEMENTS );
@@ -2153,7 +2153,7 @@
decoder->locals_bias );
- FT_TRACE4(( " callsubr (idx %d, entering level %d)\n",
+ FT_TRACE4(( " callsubr (idx %d, entering level %ld)\n",
idx,
zone - decoder->zones + 1 ));
@@ -2197,7 +2197,7 @@
decoder->globals_bias );
- FT_TRACE4(( " callgsubr (idx %d, entering level %d)\n",
+ FT_TRACE4(( " callgsubr (idx %d, entering level %ld)\n",
idx,
zone - decoder->zones + 1 ));
@@ -2236,7 +2236,7 @@
break;
case cff_op_return:
- FT_TRACE4(( " return (leaving level %d)\n",
+ FT_TRACE4(( " return (leaving level %ld)\n",
decoder->zone - decoder->zones ));
if ( decoder->zone <= decoder->zones )
@@ -2271,7 +2271,8 @@
} /* while ip < limit */
- FT_TRACE4(( "..end..\n\n" ));
+ FT_TRACE4(( "..end..\n" ));
+ FT_TRACE4(( "\n" ));
Fail:
return error;
diff --git a/thirdparty/freetype/src/psaux/cffdecode.h b/thirdparty/freetype/src/psaux/cffdecode.h
index 77a4962698..b1314ed1c1 100644
--- a/thirdparty/freetype/src/psaux/cffdecode.h
+++ b/thirdparty/freetype/src/psaux/cffdecode.h
@@ -4,7 +4,7 @@
*
* PostScript CFF (Type 2) decoding routines (specification).
*
- * Copyright (C) 2017-2020 by
+ * Copyright (C) 2017-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/module.mk b/thirdparty/freetype/src/psaux/module.mk
deleted file mode 100644
index 651db01426..0000000000
--- a/thirdparty/freetype/src/psaux/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 PSaux module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += PSAUX_MODULE
-
-define PSAUX_MODULE
-$(OPEN_DRIVER) FT_Module_Class, psaux_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)psaux $(ECHO_DRIVER_DESC)Postscript Type 1 & Type 2 helper module$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/psaux/psarrst.c b/thirdparty/freetype/src/psaux/psarrst.c
index 8751d275fb..70313d283a 100644
--- a/thirdparty/freetype/src/psaux/psarrst.c
+++ b/thirdparty/freetype/src/psaux/psarrst.c
@@ -65,7 +65,6 @@
arrstack->error = error;
arrstack->sizeItem = sizeItem;
arrstack->allocated = 0;
- arrstack->chunk = 10; /* chunks of 10 items */
arrstack->count = 0;
arrstack->totalSize = 0;
arrstack->ptr = NULL;
@@ -110,7 +109,7 @@
FT_ASSERT( newSize > 0 ); /* avoid realloc with zero size */
- if ( !FT_REALLOC( arrstack->ptr, arrstack->totalSize, newSize ) )
+ if ( !FT_QREALLOC( arrstack->ptr, arrstack->totalSize, newSize ) )
{
arrstack->allocated = numElements;
arrstack->totalSize = newSize;
@@ -216,9 +215,9 @@
if ( arrstack->count == arrstack->allocated )
{
- /* grow the buffer by one chunk */
+ /* increase the buffer size */
if ( !cf2_arrstack_setNumElements(
- arrstack, arrstack->allocated + arrstack->chunk ) )
+ arrstack, arrstack->allocated * 2 + 16 ) )
{
/* on error, ignore the push */
return;
diff --git a/thirdparty/freetype/src/psaux/psarrst.h b/thirdparty/freetype/src/psaux/psarrst.h
index 098617b257..31e5330cc3 100644
--- a/thirdparty/freetype/src/psaux/psarrst.h
+++ b/thirdparty/freetype/src/psaux/psarrst.h
@@ -55,7 +55,6 @@ FT_BEGIN_HEADER
size_t sizeItem; /* bytes per element */
size_t allocated; /* items allocated */
- size_t chunk; /* allocation increment in items */
size_t count; /* number of elements allocated */
size_t totalSize; /* total bytes allocated */
diff --git a/thirdparty/freetype/src/psaux/psaux.c b/thirdparty/freetype/src/psaux/psaux.c
index f4282222a6..2960c8b696 100644
--- a/thirdparty/freetype/src/psaux/psaux.c
+++ b/thirdparty/freetype/src/psaux/psaux.c
@@ -4,7 +4,7 @@
*
* FreeType auxiliary PostScript driver component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psauxerr.h b/thirdparty/freetype/src/psaux/psauxerr.h
index 8b9a958aec..e8ee29166c 100644
--- a/thirdparty/freetype/src/psaux/psauxerr.h
+++ b/thirdparty/freetype/src/psaux/psauxerr.h
@@ -4,7 +4,7 @@
*
* PS auxiliary module error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psauxmod.c b/thirdparty/freetype/src/psaux/psauxmod.c
index e73ba22451..52da23365e 100644
--- a/thirdparty/freetype/src/psaux/psauxmod.c
+++ b/thirdparty/freetype/src/psaux/psauxmod.c
@@ -4,7 +4,7 @@
*
* FreeType auxiliary PostScript module implementation (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psauxmod.h b/thirdparty/freetype/src/psaux/psauxmod.h
index a6bebe4b94..e3e8063220 100644
--- a/thirdparty/freetype/src/psaux/psauxmod.h
+++ b/thirdparty/freetype/src/psaux/psauxmod.h
@@ -4,7 +4,7 @@
*
* FreeType auxiliary PostScript module implementation (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psblues.c b/thirdparty/freetype/src/psaux/psblues.c
index 3878e9bde0..f9c864fea9 100644
--- a/thirdparty/freetype/src/psaux/psblues.c
+++ b/thirdparty/freetype/src/psaux/psblues.c
@@ -506,7 +506,8 @@
/* guarantee minimum of 1 pixel overshoot */
dsNew = FT_MIN(
cf2_fixedRound( bottomHintEdge->dsCoord ),
- blues->zone[i].dsFlatEdge - cf2_intToFixed( 1 ) );
+ SUB_INT32( blues->zone[i].dsFlatEdge,
+ cf2_intToFixed( 1 ) ) );
}
else
diff --git a/thirdparty/freetype/src/psaux/psconv.c b/thirdparty/freetype/src/psaux/psconv.c
index 4cf5cd5d88..c28d65df29 100644
--- a/thirdparty/freetype/src/psaux/psconv.c
+++ b/thirdparty/freetype/src/psaux/psconv.c
@@ -4,7 +4,7 @@
*
* Some convenience conversions (body).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psconv.h b/thirdparty/freetype/src/psaux/psconv.h
index 833e827364..cd91a7bb56 100644
--- a/thirdparty/freetype/src/psaux/psconv.h
+++ b/thirdparty/freetype/src/psaux/psconv.h
@@ -4,7 +4,7 @@
*
* Some convenience conversions (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psft.c b/thirdparty/freetype/src/psaux/psft.c
index 41c16542c1..ac72d8259c 100644
--- a/thirdparty/freetype/src/psaux/psft.c
+++ b/thirdparty/freetype/src/psaux/psft.c
@@ -742,13 +742,13 @@
/* For ordinary fonts get the character data stored in the face record. */
{
glyph_data.pointer = type1->charstrings[glyph_index];
- glyph_data.length = (FT_Int)type1->charstrings_len[glyph_index];
+ glyph_data.length = type1->charstrings_len[glyph_index];
}
if ( !error )
{
FT_Byte* charstring_base = (FT_Byte*)glyph_data.pointer;
- FT_ULong charstring_len = (FT_ULong)glyph_data.length;
+ FT_ULong charstring_len = glyph_data.length;
FT_ASSERT( charstring_base + charstring_len >= charstring_base );
@@ -778,7 +778,7 @@
face = (T1_Face)decoder->builder.face;
data.pointer = buf->start;
- data.length = (FT_Int)( buf->end - buf->start );
+ data.length = (FT_UInt)( buf->end - buf->start );
if ( face->root.internal->incremental_interface )
face->root.internal->incremental_interface->funcs->free_glyph_data(
diff --git a/thirdparty/freetype/src/psaux/pshints.c b/thirdparty/freetype/src/psaux/pshints.c
index ce8cfca715..ad472c98df 100644
--- a/thirdparty/freetype/src/psaux/pshints.c
+++ b/thirdparty/freetype/src/psaux/pshints.c
@@ -412,6 +412,12 @@
{
FT_Bool isPair = cf2_hint_isPair( &hintmap->edge[i] );
+ /* final amount to move edge or edge pair */
+ CF2_Fixed move = 0;
+
+ CF2_Fixed dsCoord_i;
+ CF2_Fixed dsCoord_j;
+
/* index of upper edge (same value for ghost hint) */
j = isPair ? i + 1 : i;
@@ -422,11 +428,14 @@
FT_ASSERT( cf2_hint_isLocked( &hintmap->edge[i] ) ==
cf2_hint_isLocked( &hintmap->edge[j] ) );
+ dsCoord_i = hintmap->edge[i].dsCoord;
+ dsCoord_j = hintmap->edge[j].dsCoord;
+
if ( !cf2_hint_isLocked( &hintmap->edge[i] ) )
{
/* hint edge is not locked, we can adjust it */
- CF2_Fixed fracDown = cf2_fixedFraction( hintmap->edge[i].dsCoord );
- CF2_Fixed fracUp = cf2_fixedFraction( hintmap->edge[j].dsCoord );
+ CF2_Fixed fracDown = cf2_fixedFraction( dsCoord_i );
+ CF2_Fixed fracUp = cf2_fixedFraction( dsCoord_j );
/* calculate all four possibilities; moves down are negative */
CF2_Fixed downMoveDown = 0 - fracDown;
@@ -443,9 +452,6 @@
/* smallest move down */
CF2_Fixed moveDown = FT_MAX( downMoveDown, upMoveDown );
- /* final amount to move edge or edge pair */
- CF2_Fixed move;
-
CF2_Fixed downMinCounter = CF2_MIN_COUNTER;
CF2_Fixed upMinCounter = CF2_MIN_COUNTER;
FT_Bool saveEdge = FALSE;
@@ -467,16 +473,14 @@
/* is there room to move up? */
/* there is if we are at top of array or the next edge is at or */
/* beyond proposed move up? */
- if ( j >= hintmap->count - 1 ||
+ if ( j >= hintmap->count - 1 ||
hintmap->edge[j + 1].dsCoord >=
- ADD_INT32( hintmap->edge[j].dsCoord,
- moveUp + upMinCounter ) )
+ ADD_INT32( dsCoord_j, moveUp + upMinCounter ) )
{
/* there is room to move up; is there also room to move down? */
- if ( i == 0 ||
+ if ( i == 0 ||
hintmap->edge[i - 1].dsCoord <=
- ADD_INT32( hintmap->edge[i].dsCoord,
- moveDown - downMinCounter ) )
+ ADD_INT32( dsCoord_i, moveDown - downMinCounter ) )
{
/* move smaller absolute amount */
move = ( -moveDown < moveUp ) ? moveDown : moveUp; /* optimum */
@@ -487,10 +491,9 @@
else
{
/* is there room to move down? */
- if ( i == 0 ||
+ if ( i == 0 ||
hintmap->edge[i - 1].dsCoord <=
- ADD_INT32( hintmap->edge[i].dsCoord,
- moveDown - downMinCounter ) )
+ ADD_INT32( dsCoord_i, moveDown - downMinCounter ) )
{
move = moveDown;
/* true if non-optimum move */
@@ -524,17 +527,21 @@
}
/* move the edge(s) */
- hintmap->edge[i].dsCoord = ADD_INT32( hintmap->edge[i].dsCoord,
- move );
+ hintmap->edge[i].dsCoord = ADD_INT32( dsCoord_i, move );
if ( isPair )
- hintmap->edge[j].dsCoord = ADD_INT32( hintmap->edge[j].dsCoord,
- move );
+ hintmap->edge[j].dsCoord = ADD_INT32( dsCoord_j, move );
}
- /* assert there are no overlaps in device space */
+ /* assert there are no overlaps in device space; */
+ /* ignore tests if there was overflow (that is, if */
+ /* operands have the same sign but the sum does not) */
FT_ASSERT( i == 0 ||
+ ( ( dsCoord_i ^ move ) >= 0 &&
+ ( dsCoord_i ^ hintmap->edge[i].dsCoord ) < 0 ) ||
hintmap->edge[i - 1].dsCoord <= hintmap->edge[i].dsCoord );
FT_ASSERT( i < j ||
+ ( ( dsCoord_j ^ move ) >= 0 &&
+ ( dsCoord_j ^ hintmap->edge[j].dsCoord ) < 0 ) ||
hintmap->edge[i].dsCoord <= hintmap->edge[j].dsCoord );
/* adjust the scales, avoiding divide by zero */
@@ -1022,10 +1029,17 @@
}
}
- FT_TRACE6(( "%s\n", initialMap ? "flags: [p]air [g]host [t]op"
- " [b]ottom [L]ocked [S]ynthetic\n"
- "Initial hintmap"
- : "Hints:" ));
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( initialMap )
+ {
+ FT_TRACE6(( "flags: [p]air [g]host [t]op"
+ " [b]ottom [L]ocked [S]ynthetic\n" ));
+ FT_TRACE6(( "Initial hintmap" ));
+ }
+ else
+ FT_TRACE6(( "Hints:" ));
+#endif
+
cf2_hintmap_dump( hintmap );
/*
diff --git a/thirdparty/freetype/src/psaux/psintrp.c b/thirdparty/freetype/src/psaux/psintrp.c
index 519c694447..c550533a0f 100644
--- a/thirdparty/freetype/src/psaux/psintrp.c
+++ b/thirdparty/freetype/src/psaux/psintrp.c
@@ -469,7 +469,7 @@
*/
FT_LOCAL_DEF( void )
cf2_interpT2CharString( CF2_Font font,
- CF2_Buffer buf,
+ const CF2_Buffer buf,
CF2_OutlineCallbacks callbacks,
const FT_Vector* translation,
FT_Bool doingSeac,
@@ -1340,9 +1340,9 @@
if ( decoder->glyph_names == 0 )
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
{
- FT_ERROR((
- "cf2_interpT2CharString: (Type 1 seac)"
- " glyph names table not available in this font\n" ));
+ FT_ERROR(( "cf2_interpT2CharString:\n" ));
+ FT_ERROR(( " (Type 1 seac) glyph names table"
+ " not available in this font\n" ));
lastError = FT_THROW( Invalid_Glyph_Format );
goto exit;
}
@@ -1368,9 +1368,9 @@
if ( bchar_index < 0 || achar_index < 0 )
{
- FT_ERROR((
- "cf2_interpT2CharString: (Type 1 seac)"
- " invalid seac character code arguments\n" ));
+ FT_ERROR(( "cf2_interpT2CharString:\n" ));
+ FT_ERROR(( " (Type 1 seac) invalid"
+ " seac character code arguments\n" ));
lastError = FT_THROW( Invalid_Glyph_Format );
goto exit;
}
@@ -1670,7 +1670,13 @@
*/
count = cf2_stack_count( opStack );
- FT_ASSERT( (CF2_UInt)arg_cnt <= count );
+ if ( (CF2_UInt)arg_cnt > count )
+ {
+ FT_ERROR(( "cf2_interpT2CharString (Type 1 mode):"
+ " stack underflow\n" ));
+ lastError = FT_THROW( Invalid_Glyph_Format );
+ goto exit;
+ }
opIdx += count - (CF2_UInt)arg_cnt;
@@ -1893,18 +1899,17 @@
/* cvi( <idx> ) of BuildCharArray with */
/* WeightVector */
{
- FT_Int idx;
+ FT_UInt idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 1 || !blend )
goto Unexpected_OtherSubr;
- idx = cf2_stack_popInt( opStack );
+ idx = (FT_UInt)cf2_stack_popInt( opStack );
- if ( idx < 0 ||
- (FT_UInt)idx + blend->num_designs >
- decoder->len_buildchar )
+ if ( idx + blend->num_designs >
+ decoder->len_buildchar )
goto Unexpected_OtherSubr;
ft_memcpy( &decoder->buildchar[idx],
@@ -2004,17 +2009,16 @@
/* <val> <idx> 2 24 callothersubr */
/* ==> set BuildCharArray[cvi( <idx> )] = <val> */
{
- CF2_Int idx;
+ CF2_UInt idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 2 || !blend )
goto Unexpected_OtherSubr;
- idx = cf2_stack_popInt( opStack );
+ idx = (CF2_UInt)cf2_stack_popInt( opStack );
- if ( idx < 0 ||
- (FT_UInt)idx >= decoder->len_buildchar )
+ if ( idx >= decoder->len_buildchar )
goto Unexpected_OtherSubr;
decoder->buildchar[idx] =
@@ -2027,17 +2031,16 @@
/* ==> push BuildCharArray[cvi( idx )] */
/* onto T1 stack */
{
- CF2_Int idx;
+ CF2_UInt idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 1 || !blend )
goto Unexpected_OtherSubr;
- idx = cf2_stack_popInt( opStack );
+ idx = (CF2_UInt)cf2_stack_popInt( opStack );
- if ( idx < 0 ||
- (FT_UInt)idx >= decoder->len_buildchar )
+ if ( idx >= decoder->len_buildchar )
goto Unexpected_OtherSubr;
cf2_stack_pushFixed( opStack,
@@ -2179,29 +2182,29 @@
case cf2_escPUT:
{
CF2_F16Dot16 val;
- CF2_Int idx;
+ CF2_UInt idx;
FT_TRACE4(( " put\n" ));
- idx = cf2_stack_popInt( opStack );
+ idx = (CF2_UInt)cf2_stack_popInt( opStack );
val = cf2_stack_popFixed( opStack );
- if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
+ if ( idx < CF2_STORAGE_SIZE )
storage[idx] = val;
}
continue; /* do not clear the stack */
case cf2_escGET:
{
- CF2_Int idx;
+ CF2_UInt idx;
FT_TRACE4(( " get\n" ));
- idx = cf2_stack_popInt( opStack );
+ idx = (CF2_UInt)cf2_stack_popInt( opStack );
- if ( idx >= 0 && idx < CF2_STORAGE_SIZE )
+ if ( idx < CF2_STORAGE_SIZE )
cf2_stack_pushFixed( opStack, storage[idx] );
}
continue; /* do not clear the stack */
diff --git a/thirdparty/freetype/src/psaux/psintrp.h b/thirdparty/freetype/src/psaux/psintrp.h
index 669c09c0ae..d8b9342ecb 100644
--- a/thirdparty/freetype/src/psaux/psintrp.h
+++ b/thirdparty/freetype/src/psaux/psintrp.h
@@ -65,7 +65,7 @@ FT_BEGIN_HEADER
FT_LOCAL( void )
cf2_interpT2CharString( CF2_Font font,
- CF2_Buffer charstring,
+ const CF2_Buffer buf,
CF2_OutlineCallbacks callbacks,
const FT_Vector* translation,
FT_Bool doingSeac,
diff --git a/thirdparty/freetype/src/psaux/psobjs.c b/thirdparty/freetype/src/psaux/psobjs.c
index defc4d4fce..30f501916a 100644
--- a/thirdparty/freetype/src/psaux/psobjs.c
+++ b/thirdparty/freetype/src/psaux/psobjs.c
@@ -4,7 +4,7 @@
*
* Auxiliary functions for PostScript fonts (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -251,7 +251,7 @@
if ( !old_base )
return;
- if ( FT_ALLOC( table->block, table->cursor ) )
+ if ( FT_QALLOC( table->block, table->cursor ) )
return;
FT_MEM_COPY( table->block, old_base, table->cursor );
shift_elements( table, old_base );
@@ -595,10 +595,10 @@
if ( cur < limit && cur == parser->cursor )
{
FT_ERROR(( "ps_parser_skip_PS_token:"
- " current token is `%c' which is self-delimiting\n"
- " "
- " but invalid at this point\n",
+ " current token is `%c' which is self-delimiting\n",
*cur ));
+ FT_ERROR(( " "
+ " but invalid at this point\n" ));
error = FT_THROW( Invalid_File_Format );
}
@@ -979,7 +979,7 @@
}
len = (FT_UInt)( cur - *cursor );
- if ( cur >= limit || FT_ALLOC( result, len + 1 ) )
+ if ( cur >= limit || FT_QALLOC( result, len + 1 ) )
return 0;
/* now copy the string */
@@ -1175,8 +1175,8 @@
else
{
FT_ERROR(( "ps_parser_load_field:"
- " expected a name or string\n"
- " "
+ " expected a name or string\n" ));
+ FT_ERROR(( " "
" but found token of type %d instead\n",
token.type ));
error = FT_THROW( Invalid_File_Format );
@@ -1193,7 +1193,7 @@
*(FT_String**)q = NULL;
}
- if ( FT_ALLOC( string, len + 1 ) )
+ if ( FT_QALLOC( string, len + 1 ) )
goto Exit;
FT_MEM_COPY( string, cur, len );
@@ -1248,7 +1248,7 @@
FT_UInt i;
- if ( FT_NEW_ARRAY( temp, max_objects * 4 ) )
+ if ( FT_QNEW_ARRAY( temp, max_objects * 4 ) )
goto Exit;
for ( i = 0; i < 4; i++ )
@@ -1258,14 +1258,14 @@
if ( result < 0 || (FT_UInt)result < max_objects )
{
FT_ERROR(( "ps_parser_load_field:"
- " expected %d integer%s in the %s subarray\n"
- " "
- " of /FontBBox in the /Blend dictionary\n",
+ " expected %d integer%s in the %s subarray\n",
max_objects, max_objects > 1 ? "s" : "",
i == 0 ? "first"
: ( i == 1 ? "second"
: ( i == 2 ? "third"
: "fourth" ) ) ));
+ FT_ERROR(( " "
+ " of /FontBBox in the /Blend dictionary\n" ));
error = FT_THROW( Invalid_File_Format );
FT_FREE( temp );
diff --git a/thirdparty/freetype/src/psaux/psobjs.h b/thirdparty/freetype/src/psaux/psobjs.h
index fdad672b6d..99d16959a7 100644
--- a/thirdparty/freetype/src/psaux/psobjs.h
+++ b/thirdparty/freetype/src/psaux/psobjs.h
@@ -4,7 +4,7 @@
*
* Auxiliary functions for PostScript fonts (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/psstack.c b/thirdparty/freetype/src/psaux/psstack.c
index 7ae5256ef1..797486588a 100644
--- a/thirdparty/freetype/src/psaux/psstack.c
+++ b/thirdparty/freetype/src/psaux/psstack.c
@@ -54,20 +54,18 @@
FT_Error* e,
FT_UInt stackSize )
{
- FT_Error error = FT_Err_Ok; /* for FT_NEW */
-
+ FT_Error error; /* for FT_QNEW */
CF2_Stack stack = NULL;
- if ( FT_NEW( stack ) )
+ if ( FT_QNEW( stack ) )
return NULL;
- /* initialize the structure; FT_NEW zeroes it */
stack->memory = memory;
stack->error = e;
/* allocate the stack buffer */
- if ( FT_NEW_ARRAY( stack->buffer, stackSize ) )
+ if ( FT_QNEW_ARRAY( stack->buffer, stackSize ) )
{
FT_FREE( stack );
return NULL;
diff --git a/thirdparty/freetype/src/psaux/rules.mk b/thirdparty/freetype/src/psaux/rules.mk
deleted file mode 100644
index f49aecbc79..0000000000
--- a/thirdparty/freetype/src/psaux/rules.mk
+++ /dev/null
@@ -1,89 +0,0 @@
-#
-# FreeType 2 PSaux driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# PSAUX driver directory
-#
-PSAUX_DIR := $(SRC_DIR)/psaux
-
-
-# compilation flags for the driver
-#
-PSAUX_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(PSAUX_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# PSAUX driver sources (i.e., C files)
-#
-PSAUX_DRV_SRC := $(PSAUX_DIR)/psobjs.c \
- $(PSAUX_DIR)/t1decode.c \
- $(PSAUX_DIR)/t1cmap.c \
- $(PSAUX_DIR)/afmparse.c \
- $(PSAUX_DIR)/psconv.c \
- $(PSAUX_DIR)/psauxmod.c \
- $(PSAUX_DIR)/psarrst.c \
- $(PSAUX_DIR)/psblues.c \
- $(PSAUX_DIR)/pserror.c \
- $(PSAUX_DIR)/psfont.c \
- $(PSAUX_DIR)/psft.c \
- $(PSAUX_DIR)/pshints.c \
- $(PSAUX_DIR)/psintrp.c \
- $(PSAUX_DIR)/psread.c \
- $(PSAUX_DIR)/psstack.c \
- $(PSAUX_DIR)/cffdecode.c
-
-# PSAUX driver headers
-#
-PSAUX_DRV_H := $(PSAUX_DRV_SRC:%c=%h) \
- $(PSAUX_DIR)/psauxerr.h \
- $(PSAUX_DIR)/psfixed.h \
- $(PSAUX_DIR)/psglue.h \
- $(PSAUX_DIR)/pstypes.h
-
-
-# PSAUX driver object(s)
-#
-# PSAUX_DRV_OBJ_M is used during `multi' builds.
-# PSAUX_DRV_OBJ_S is used during `single' builds.
-#
-PSAUX_DRV_OBJ_M := $(PSAUX_DRV_SRC:$(PSAUX_DIR)/%.c=$(OBJ_DIR)/%.$O)
-PSAUX_DRV_OBJ_S := $(OBJ_DIR)/psaux.$O
-
-# PSAUX driver source file for single build
-#
-PSAUX_DRV_SRC_S := $(PSAUX_DIR)/psaux.c
-
-
-# PSAUX driver - single object
-#
-$(PSAUX_DRV_OBJ_S): $(PSAUX_DRV_SRC_S) $(PSAUX_DRV_SRC) \
- $(FREETYPE_H) $(PSAUX_DRV_H)
- $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSAUX_DRV_SRC_S))
-
-
-# PSAUX driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(PSAUX_DIR)/%.c $(FREETYPE_H) $(PSAUX_DRV_H)
- $(PSAUX_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(PSAUX_DRV_OBJ_S)
-DRV_OBJS_M += $(PSAUX_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/psaux/t1cmap.c b/thirdparty/freetype/src/psaux/t1cmap.c
index e21e93ca26..3e7c577a18 100644
--- a/thirdparty/freetype/src/psaux/t1cmap.c
+++ b/thirdparty/freetype/src/psaux/t1cmap.c
@@ -4,7 +4,7 @@
*
* Type 1 character map support (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/t1cmap.h b/thirdparty/freetype/src/psaux/t1cmap.h
index 031796510f..8f69600ca4 100644
--- a/thirdparty/freetype/src/psaux/t1cmap.h
+++ b/thirdparty/freetype/src/psaux/t1cmap.h
@@ -4,7 +4,7 @@
*
* Type 1 character map support (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psaux/t1decode.c b/thirdparty/freetype/src/psaux/t1decode.c
index 2ed27ca19e..7e65bde632 100644
--- a/thirdparty/freetype/src/psaux/t1decode.c
+++ b/thirdparty/freetype/src/psaux/t1decode.c
@@ -4,7 +4,7 @@
*
* PostScript Type 1 decoding routines (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -27,8 +27,11 @@
#include "psauxerr.h"
+
/* ensure proper sign extension */
-#define Fix2Int( f ) ( (FT_Int)(FT_Short)( (f) >> 16 ) )
+#define Fix2Int( f ) ( (FT_Int) (FT_Short)( (f) >> 16 ) )
+#define Fix2UInt( f ) ( (FT_UInt)(FT_Short)( (f) >> 16 ) )
+
/**************************************************************************
*
@@ -517,7 +520,7 @@
#ifdef FT_DEBUG_LEVEL_TRACE
if ( bol )
{
- FT_TRACE5(( " (%d)", decoder->top - decoder->stack ));
+ FT_TRACE5(( " (%ld)", decoder->top - decoder->stack ));
bol = FALSE;
}
#endif
@@ -1025,16 +1028,16 @@
/* <val> <idx> 2 24 callothersubr */
/* ==> set BuildCharArray[cvi( <idx> )] = <val> */
{
- FT_Int idx;
+ FT_UInt idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 2 || !blend )
goto Unexpected_OtherSubr;
- idx = Fix2Int( top[1] );
+ idx = Fix2UInt( top[1] );
- if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar )
+ if ( idx >= decoder->len_buildchar )
goto Unexpected_OtherSubr;
decoder->buildchar[idx] = top[0];
@@ -1046,16 +1049,16 @@
/* ==> push BuildCharArray[cvi( idx )] */
/* onto T1 stack */
{
- FT_Int idx;
+ FT_UInt idx;
PS_Blend blend = decoder->blend;
if ( arg_cnt != 1 || !blend )
goto Unexpected_OtherSubr;
- idx = Fix2Int( top[0] );
+ idx = Fix2UInt( top[0] );
- if ( idx < 0 || (FT_UInt) idx >= decoder->len_buildchar )
+ if ( idx >= decoder->len_buildchar )
goto Unexpected_OtherSubr;
top[0] = decoder->buildchar[idx];
@@ -1162,9 +1165,9 @@
if ( top - decoder->stack != num_args )
FT_TRACE0(( "t1_decoder_parse_charstrings:"
" too much operands on the stack"
- " (seen %d, expected %d)\n",
+ " (seen %ld, expected %d)\n",
top - decoder->stack, num_args ));
- break;
+ break;
}
#endif /* FT_DEBUG_LEVEL_TRACE */
@@ -1209,7 +1212,7 @@
FT_TRACE4(( "BuildCharArray = [ " ));
for ( i = 0; i < decoder->len_buildchar; i++ )
- FT_TRACE4(( "%d ", decoder->buildchar[i] ));
+ FT_TRACE4(( "%ld ", decoder->buildchar[i] ));
FT_TRACE4(( "]\n" ));
}
@@ -1650,7 +1653,8 @@
} /* while ip < limit */
- FT_TRACE4(( "..end..\n\n" ));
+ FT_TRACE4(( "..end..\n" ));
+ FT_TRACE4(( "\n" ));
Fail:
return error;
@@ -2070,7 +2074,8 @@
} /* while ip < limit */
- FT_TRACE4(( "..end..\n\n" ));
+ FT_TRACE4(( "..end..\n" ));
+ FT_TRACE4(( "\n" ));
No_Width:
FT_ERROR(( "t1_decoder_parse_metrics:"
diff --git a/thirdparty/freetype/src/psaux/t1decode.h b/thirdparty/freetype/src/psaux/t1decode.h
index b793504ac6..eea9d34b04 100644
--- a/thirdparty/freetype/src/psaux/t1decode.h
+++ b/thirdparty/freetype/src/psaux/t1decode.h
@@ -4,7 +4,7 @@
*
* PostScript Type 1 decoding routines (specification).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/module.mk b/thirdparty/freetype/src/pshinter/module.mk
deleted file mode 100644
index b440d2e76a..0000000000
--- a/thirdparty/freetype/src/pshinter/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 PSHinter module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += PSHINTER_MODULE
-
-define PSHINTER_MODULE
-$(OPEN_DRIVER) FT_Module_Class, pshinter_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)pshinter $(ECHO_DRIVER_DESC)Postscript hinter module$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/pshinter/pshalgo.c b/thirdparty/freetype/src/pshinter/pshalgo.c
index 920b9a74b5..227caeae33 100644
--- a/thirdparty/freetype/src/pshinter/pshalgo.c
+++ b/thirdparty/freetype/src/pshinter/pshalgo.c
@@ -4,7 +4,7 @@
*
* PostScript hinting algorithm (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
@@ -305,17 +305,18 @@
/* now, sort the hints; they are guaranteed to not overlap */
/* so we can compare their "org_pos" field directly */
{
- FT_Int i1, i2;
+ FT_UInt i1, i2;
PSH_Hint hint1, hint2;
PSH_Hint* sort = table->sort;
/* a simple bubble sort will do, since in 99% of cases, the hints */
/* will be already sorted -- and the sort will be linear */
- for ( i1 = 1; i1 < (FT_Int)count; i1++ )
+ for ( i1 = 1; i1 < count; i1++ )
{
hint1 = sort[i1];
- for ( i2 = i1 - 1; i2 >= 0; i2-- )
+ /* this loop stops when i2 wraps around after reaching 0 */
+ for ( i2 = i1 - 1; i2 < i1; i2-- )
{
hint2 = sort[i2];
@@ -869,7 +870,7 @@
return;
}
-#endif /* DEBUG_HINTER*/
+#endif /* DEBUG_HINTER */
hint = table->hints;
count = table->max_hints;
@@ -1049,12 +1050,12 @@
}
- static int
+ static PSH_Dir
psh_compute_dir( FT_Pos dx,
FT_Pos dy )
{
- FT_Pos ax, ay;
- int result = PSH_DIR_NONE;
+ FT_Pos ax, ay;
+ PSH_Dir result = PSH_DIR_NONE;
ax = FT_ABS( dx );
@@ -1233,12 +1234,12 @@
dxi = vec[n].x - vec[n_prev].x;
dyi = vec[n].y - vec[n_prev].y;
- point->dir_in = (FT_Char)psh_compute_dir( dxi, dyi );
+ point->dir_in = psh_compute_dir( dxi, dyi );
dxo = vec[n_next].x - vec[n].x;
dyo = vec[n_next].y - vec[n].y;
- point->dir_out = (FT_Char)psh_compute_dir( dxo, dyo );
+ point->dir_out = psh_compute_dir( dxo, dyo );
/* detect smooth points */
if ( point->flags & PSH_POINT_OFF )
@@ -1403,16 +1404,13 @@
}
- /* major_dir is the direction for points on the bottom/left of the stem; */
- /* Points on the top/right of the stem will have a direction of */
- /* -major_dir. */
-
+ /* the min and max are based on contour orientation and fill rule */
static void
psh_hint_table_find_strong_points( PSH_Hint_Table table,
PSH_Point point,
FT_UInt count,
FT_Int threshold,
- FT_Int major_dir )
+ PSH_Dir major_dir )
{
PSH_Hint* sort = table->sort;
FT_UInt num_hints = table->num_hints;
@@ -1420,59 +1418,53 @@
for ( ; count > 0; count--, point++ )
{
- FT_Int point_dir = 0;
- FT_Pos org_u = point->org_u;
+ PSH_Dir point_dir;
+ FT_Pos org_u = point->org_u;
if ( psh_point_is_strong( point ) )
continue;
- if ( PSH_DIR_COMPARE( point->dir_in, major_dir ) )
- point_dir = point->dir_in;
-
- else if ( PSH_DIR_COMPARE( point->dir_out, major_dir ) )
- point_dir = point->dir_out;
+ point_dir =
+ (PSH_Dir)( ( point->dir_in | point->dir_out ) & major_dir );
- if ( point_dir )
+ if ( point_dir & ( PSH_DIR_DOWN | PSH_DIR_RIGHT ) )
{
- if ( point_dir == major_dir )
- {
- FT_UInt nn;
+ FT_UInt nn;
- for ( nn = 0; nn < num_hints; nn++ )
- {
- PSH_Hint hint = sort[nn];
- FT_Pos d = org_u - hint->org_pos;
+ for ( nn = 0; nn < num_hints; nn++ )
+ {
+ PSH_Hint hint = sort[nn];
+ FT_Pos d = org_u - hint->org_pos;
- if ( d < threshold && -d < threshold )
- {
- psh_point_set_strong( point );
- point->flags2 |= PSH_POINT_EDGE_MIN;
- point->hint = hint;
- break;
- }
+ if ( d < threshold && -d < threshold )
+ {
+ psh_point_set_strong( point );
+ point->flags2 |= PSH_POINT_EDGE_MIN;
+ point->hint = hint;
+ break;
}
}
- else if ( point_dir == -major_dir )
- {
- FT_UInt nn;
+ }
+ else if ( point_dir & ( PSH_DIR_UP | PSH_DIR_LEFT ) )
+ {
+ FT_UInt nn;
- for ( nn = 0; nn < num_hints; nn++ )
- {
- PSH_Hint hint = sort[nn];
- FT_Pos d = org_u - hint->org_pos - hint->org_len;
+ for ( nn = 0; nn < num_hints; nn++ )
+ {
+ PSH_Hint hint = sort[nn];
+ FT_Pos d = org_u - hint->org_pos - hint->org_len;
- if ( d < threshold && -d < threshold )
- {
- psh_point_set_strong( point );
- point->flags2 |= PSH_POINT_EDGE_MAX;
- point->hint = hint;
- break;
- }
+ if ( d < threshold && -d < threshold )
+ {
+ psh_point_set_strong( point );
+ point->flags2 |= PSH_POINT_EDGE_MAX;
+ point->hint = hint;
+ break;
}
}
}
@@ -1571,7 +1563,7 @@
PS_Mask mask = table->hint_masks->masks;
FT_UInt num_masks = table->hint_masks->num_masks;
FT_UInt first = 0;
- FT_Int major_dir = ( dimension == 0 ) ? PSH_DIR_VERTICAL
+ PSH_Dir major_dir = ( dimension == 0 ) ? PSH_DIR_VERTICAL
: PSH_DIR_HORIZONTAL;
PSH_Dimension dim = &glyph->globals->dimension[dimension];
FT_Fixed scale = dim->scale_mult;
@@ -1656,8 +1648,8 @@
/* check tangents */
- if ( !PSH_DIR_COMPARE( point->dir_in, PSH_DIR_HORIZONTAL ) &&
- !PSH_DIR_COMPARE( point->dir_out, PSH_DIR_HORIZONTAL ) )
+ if ( !( point->dir_in & PSH_DIR_HORIZONTAL ) &&
+ !( point->dir_out & PSH_DIR_HORIZONTAL ) )
continue;
/* skip strong points */
diff --git a/thirdparty/freetype/src/pshinter/pshalgo.h b/thirdparty/freetype/src/pshinter/pshalgo.h
index 5367a5d164..999c60192b 100644
--- a/thirdparty/freetype/src/pshinter/pshalgo.h
+++ b/thirdparty/freetype/src/pshinter/pshalgo.h
@@ -4,7 +4,7 @@
*
* PostScript hinting algorithm (specification).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -93,21 +93,17 @@ FT_BEGIN_HEADER
typedef struct PSH_PointRec_* PSH_Point;
typedef struct PSH_ContourRec_* PSH_Contour;
- enum
+ typedef enum PSH_Dir_
{
- PSH_DIR_NONE = 4,
- PSH_DIR_UP = -1,
- PSH_DIR_DOWN = 1,
- PSH_DIR_LEFT = -2,
- PSH_DIR_RIGHT = 2
- };
+ PSH_DIR_NONE = 0,
+ PSH_DIR_UP = 1,
+ PSH_DIR_DOWN = 2,
+ PSH_DIR_VERTICAL = 1 | 2,
+ PSH_DIR_LEFT = 4,
+ PSH_DIR_RIGHT = 8,
+ PSH_DIR_HORIZONTAL = 4 | 8
-#define PSH_DIR_HORIZONTAL 2
-#define PSH_DIR_VERTICAL 1
-
-#define PSH_DIR_COMPARE( d1, d2 ) ( (d1) == (d2) || (d1) == -(d2) )
-#define PSH_DIR_IS_HORIZONTAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_HORIZONTAL )
-#define PSH_DIR_IS_VERTICAL( d ) PSH_DIR_COMPARE( d, PSH_DIR_VERTICAL )
+ } PSH_Dir;
/* the following bit-flags are computed once by the glyph */
@@ -160,8 +156,8 @@ FT_BEGIN_HEADER
PSH_Contour contour;
FT_UInt flags;
FT_UInt flags2;
- FT_Char dir_in;
- FT_Char dir_out;
+ PSH_Dir dir_in;
+ PSH_Dir dir_out;
PSH_Hint hint;
FT_Pos org_u;
FT_Pos org_v;
@@ -199,10 +195,6 @@ FT_BEGIN_HEADER
PSH_Globals globals;
PSH_Hint_TableRec hint_tables[2];
- FT_Bool vertical;
- FT_Int major_dir;
- FT_Int minor_dir;
-
FT_Bool do_horz_hints;
FT_Bool do_vert_hints;
FT_Bool do_horz_snapping;
diff --git a/thirdparty/freetype/src/pshinter/pshglob.c b/thirdparty/freetype/src/pshinter/pshglob.c
index cdc1c3af0e..2ca0f665c6 100644
--- a/thirdparty/freetype/src/pshinter/pshglob.c
+++ b/thirdparty/freetype/src/pshinter/pshglob.c
@@ -5,7 +5,7 @@
* PostScript hinter global hinting management (body).
* Inspired by the new auto-hinter module.
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
diff --git a/thirdparty/freetype/src/pshinter/pshglob.h b/thirdparty/freetype/src/pshinter/pshglob.h
index 8181324e5e..a8f9953fa0 100644
--- a/thirdparty/freetype/src/pshinter/pshglob.h
+++ b/thirdparty/freetype/src/pshinter/pshglob.h
@@ -4,7 +4,7 @@
*
* PostScript hinter global hinting management.
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/pshinter.c b/thirdparty/freetype/src/pshinter/pshinter.c
index 3cca0ad7c2..705143dcdc 100644
--- a/thirdparty/freetype/src/pshinter/pshinter.c
+++ b/thirdparty/freetype/src/pshinter/pshinter.c
@@ -4,7 +4,7 @@
*
* FreeType PostScript Hinting module
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/pshmod.c b/thirdparty/freetype/src/pshinter/pshmod.c
index e0abd386f9..6674041f7e 100644
--- a/thirdparty/freetype/src/pshinter/pshmod.c
+++ b/thirdparty/freetype/src/pshinter/pshmod.c
@@ -4,7 +4,7 @@
*
* FreeType PostScript hinter module implementation (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/pshmod.h b/thirdparty/freetype/src/pshinter/pshmod.h
index 2a6eb1c469..8b229bb077 100644
--- a/thirdparty/freetype/src/pshinter/pshmod.h
+++ b/thirdparty/freetype/src/pshinter/pshmod.h
@@ -4,7 +4,7 @@
*
* PostScript hinter module interface (specification).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/pshnterr.h b/thirdparty/freetype/src/pshinter/pshnterr.h
index d67955c410..567d765132 100644
--- a/thirdparty/freetype/src/pshinter/pshnterr.h
+++ b/thirdparty/freetype/src/pshinter/pshnterr.h
@@ -4,7 +4,7 @@
*
* PS Hinter error codes (specification only).
*
- * Copyright (C) 2003-2020 by
+ * Copyright (C) 2003-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/pshrec.c b/thirdparty/freetype/src/pshinter/pshrec.c
index bddccf2a6e..1faabdaafa 100644
--- a/thirdparty/freetype/src/pshinter/pshrec.c
+++ b/thirdparty/freetype/src/pshinter/pshrec.c
@@ -4,7 +4,7 @@
*
* FreeType PostScript hints recorder (body).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -499,23 +499,18 @@
ps_mask_table_merge_all( PS_Mask_Table table,
FT_Memory memory )
{
- FT_Int index1, index2;
+ FT_UInt index1, index2;
FT_Error error = FT_Err_Ok;
- /* both loops go down to 0, thus FT_Int for index1 and index2 */
- for ( index1 = (FT_Int)table->num_masks - 1; index1 > 0; index1-- )
+ /* the loops stop when unsigned indices wrap around after 0 */
+ for ( index1 = table->num_masks - 1; index1 < table->num_masks; index1-- )
{
- for ( index2 = index1 - 1; index2 >= 0; index2-- )
+ for ( index2 = index1 - 1; index2 < index1; index2-- )
{
- if ( ps_mask_table_test_intersect( table,
- (FT_UInt)index1,
- (FT_UInt)index2 ) )
+ if ( ps_mask_table_test_intersect( table, index1, index2 ) )
{
- error = ps_mask_table_merge( table,
- (FT_UInt)index2,
- (FT_UInt)index1,
- memory );
+ error = ps_mask_table_merge( table, index2, index1, memory );
if ( error )
goto Exit;
diff --git a/thirdparty/freetype/src/pshinter/pshrec.h b/thirdparty/freetype/src/pshinter/pshrec.h
index b13c7be13c..e483981d9d 100644
--- a/thirdparty/freetype/src/pshinter/pshrec.h
+++ b/thirdparty/freetype/src/pshinter/pshrec.h
@@ -4,7 +4,7 @@
*
* Postscript (Type1/Type2) hints recorder (specification).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/pshinter/rules.mk b/thirdparty/freetype/src/pshinter/rules.mk
deleted file mode 100644
index c845c255cd..0000000000
--- a/thirdparty/freetype/src/pshinter/rules.mk
+++ /dev/null
@@ -1,75 +0,0 @@
-#
-# FreeType 2 PSHinter driver configuration rules
-#
-
-
-# Copyright (C) 2001-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# PSHINTER driver directory
-#
-PSHINTER_DIR := $(SRC_DIR)/pshinter
-
-
-# compilation flags for the driver
-#
-PSHINTER_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(PSHINTER_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# PSHINTER driver sources (i.e., C files)
-#
-PSHINTER_DRV_SRC := $(PSHINTER_DIR)/pshalgo.c \
- $(PSHINTER_DIR)/pshglob.c \
- $(PSHINTER_DIR)/pshmod.c \
- $(PSHINTER_DIR)/pshrec.c
-
-
-# PSHINTER driver headers
-#
-PSHINTER_DRV_H := $(PSHINTER_DRV_SRC:%c=%h) \
- $(PSHINTER_DIR)/pshnterr.h
-
-
-# PSHINTER driver object(s)
-#
-# PSHINTER_DRV_OBJ_M is used during `multi' builds.
-# PSHINTER_DRV_OBJ_S is used during `single' builds.
-#
-PSHINTER_DRV_OBJ_M := $(PSHINTER_DRV_SRC:$(PSHINTER_DIR)/%.c=$(OBJ_DIR)/%.$O)
-PSHINTER_DRV_OBJ_S := $(OBJ_DIR)/pshinter.$O
-
-# PSHINTER driver source file for single build
-#
-PSHINTER_DRV_SRC_S := $(PSHINTER_DIR)/pshinter.c
-
-
-# PSHINTER driver - single object
-#
-$(PSHINTER_DRV_OBJ_S): $(PSHINTER_DRV_SRC_S) $(PSHINTER_DRV_SRC) \
- $(FREETYPE_H) $(PSHINTER_DRV_H)
- $(PSHINTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSHINTER_DRV_SRC_S))
-
-
-# PSHINTER driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(PSHINTER_DIR)/%.c $(FREETYPE_H) $(PSHINTER_DRV_H)
- $(PSHINTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(PSHINTER_DRV_OBJ_S)
-DRV_OBJS_M += $(PSHINTER_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/psnames/module.mk b/thirdparty/freetype/src/psnames/module.mk
deleted file mode 100644
index 675bb37131..0000000000
--- a/thirdparty/freetype/src/psnames/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 PSnames module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += PSNAMES_MODULE
-
-define PSNAMES_MODULE
-$(OPEN_DRIVER) FT_Module_Class, psnames_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)psnames $(ECHO_DRIVER_DESC)Postscript & Unicode Glyph name handling$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/psnames/psmodule.c b/thirdparty/freetype/src/psnames/psmodule.c
index b38f9d3b1c..74adefa15b 100644
--- a/thirdparty/freetype/src/psnames/psmodule.c
+++ b/thirdparty/freetype/src/psnames/psmodule.c
@@ -4,7 +4,7 @@
*
* psnames module implementation (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -155,31 +155,30 @@
/* Look for a non-initial dot in the glyph name in order to */
/* find variants like `A.swash', `e.final', etc. */
{
- const char* p = glyph_name;
- const char* dot = NULL;
+ FT_UInt32 value = 0;
+ const char* p = glyph_name;
+
+ for ( ; *p && *p != '.'; p++ )
+ ;
- for ( ; *p; p++ )
+ /* now look up the glyph in the Adobe Glyph List; */
+ /* `.notdef', `.null' and the empty name are short cut */
+ if ( p > glyph_name )
{
- if ( *p == '.' && p > glyph_name )
- {
- dot = p;
- break;
- }
+ value = (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p );
+
+ if ( *p == '.' )
+ value |= (FT_UInt32)VARIANT_BIT;
}
- /* now look up the glyph in the Adobe Glyph List */
- if ( !dot )
- return (FT_UInt32)ft_get_adobe_glyph_index( glyph_name, p );
- else
- return (FT_UInt32)( ft_get_adobe_glyph_index( glyph_name, dot ) |
- VARIANT_BIT );
+ return value;
}
}
/* ft_qsort callback to sort the unicode map */
- FT_CALLBACK_DEF( int )
+ FT_COMPARE_DEF( int )
compare_uni_maps( const void* a,
const void* b )
{
@@ -326,9 +325,8 @@
/* we first allocate the table */
table->num_maps = 0;
- table->maps = NULL;
- if ( !FT_NEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) )
+ if ( !FT_QNEW_ARRAY( table->maps, num_glyphs + EXTRA_GLYPH_LIST_SIZE ) )
{
FT_UInt n;
FT_UInt count;
@@ -343,7 +341,7 @@
const char* gname = get_glyph_name( glyph_data, n );
- if ( gname )
+ if ( gname && *gname )
{
ps_check_extra_glyph_name( gname, n,
extra_glyphs, extra_glyph_list_states );
@@ -391,9 +389,9 @@
/* Reallocate if the number of used entries is much smaller. */
if ( count < num_glyphs / 2 )
{
- (void)FT_RENEW_ARRAY( table->maps,
- num_glyphs + EXTRA_GLYPH_LIST_SIZE,
- count );
+ FT_MEM_QRENEW_ARRAY( table->maps,
+ num_glyphs + EXTRA_GLYPH_LIST_SIZE,
+ count );
error = FT_Err_Ok;
}
diff --git a/thirdparty/freetype/src/psnames/psmodule.h b/thirdparty/freetype/src/psnames/psmodule.h
index c85a9ecad7..e92a975e9d 100644
--- a/thirdparty/freetype/src/psnames/psmodule.h
+++ b/thirdparty/freetype/src/psnames/psmodule.h
@@ -4,7 +4,7 @@
*
* High-level psnames module interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psnames/psnamerr.h b/thirdparty/freetype/src/psnames/psnamerr.h
index 154c701d04..888b76c4f6 100644
--- a/thirdparty/freetype/src/psnames/psnamerr.h
+++ b/thirdparty/freetype/src/psnames/psnamerr.h
@@ -4,7 +4,7 @@
*
* PS names module error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psnames/psnames.c b/thirdparty/freetype/src/psnames/psnames.c
index cff36851ba..e7be6707d6 100644
--- a/thirdparty/freetype/src/psnames/psnames.c
+++ b/thirdparty/freetype/src/psnames/psnames.c
@@ -4,7 +4,7 @@
*
* FreeType psnames module component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psnames/pstables.h b/thirdparty/freetype/src/psnames/pstables.h
index c215f16ffc..0bcadca9cc 100644
--- a/thirdparty/freetype/src/psnames/pstables.h
+++ b/thirdparty/freetype/src/psnames/pstables.h
@@ -4,7 +4,7 @@
*
* PostScript glyph names.
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/psnames/rules.mk b/thirdparty/freetype/src/psnames/rules.mk
deleted file mode 100644
index 14cdda3ad1..0000000000
--- a/thirdparty/freetype/src/psnames/rules.mk
+++ /dev/null
@@ -1,73 +0,0 @@
-#
-# FreeType 2 psnames driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# psnames driver directory
-#
-PSNAMES_DIR := $(SRC_DIR)/psnames
-
-
-# compilation flags for the driver
-#
-PSNAMES_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(PSNAMES_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# psnames driver sources (i.e., C files)
-#
-PSNAMES_DRV_SRC := $(PSNAMES_DIR)/psmodule.c
-
-
-# psnames driver headers
-#
-PSNAMES_DRV_H := $(PSNAMES_DRV_SRC:%.c=%.h) \
- $(PSNAMES_DIR)/psnamerr.h \
- $(PSNAMES_DIR)/pstables.h
-
-
-# psnames driver object(s)
-#
-# PSNAMES_DRV_OBJ_M is used during `multi' builds
-# PSNAMES_DRV_OBJ_S is used during `single' builds
-#
-PSNAMES_DRV_OBJ_M := $(PSNAMES_DRV_SRC:$(PSNAMES_DIR)/%.c=$(OBJ_DIR)/%.$O)
-PSNAMES_DRV_OBJ_S := $(OBJ_DIR)/psnames.$O
-
-# psnames driver source file for single build
-#
-PSNAMES_DRV_SRC_S := $(PSNAMES_DIR)/psnames.c
-
-
-# psnames driver - single object
-#
-$(PSNAMES_DRV_OBJ_S): $(PSNAMES_DRV_SRC_S) $(PSNAMES_DRV_SRC) \
- $(FREETYPE_H) $(PSNAMES_DRV_H)
- $(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(PSNAMES_DRV_SRC_S))
-
-
-# psnames driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(PSNAMES_DIR)/%.c $(FREETYPE_H) $(PSNAMES_DRV_H)
- $(PSNAMES_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(PSNAMES_DRV_OBJ_S)
-DRV_OBJS_M += $(PSNAMES_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/raster/ftmisc.h b/thirdparty/freetype/src/raster/ftmisc.h
index 6efe4a9a5a..b12a051234 100644
--- a/thirdparty/freetype/src/raster/ftmisc.h
+++ b/thirdparty/freetype/src/raster/ftmisc.h
@@ -5,7 +5,7 @@
* Miscellaneous macros for stand-alone rasterizer (specification
* only).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
@@ -47,11 +47,8 @@
typedef signed long FT_F26Dot6;
typedef int FT_Error;
-#define FT_MAKE_TAG( _x1, _x2, _x3, _x4 ) \
- ( ( (FT_ULong)_x1 << 24 ) | \
- ( (FT_ULong)_x2 << 16 ) | \
- ( (FT_ULong)_x3 << 8 ) | \
- (FT_ULong)_x4 )
+
+#define FT_STATIC_BYTE_CAST( type, var ) (type)(FT_Byte)(var)
/* from include/freetype/ftsystem.h */
diff --git a/thirdparty/freetype/src/raster/ftraster.c b/thirdparty/freetype/src/raster/ftraster.c
index 9f0a7976fa..bfc059c1e8 100644
--- a/thirdparty/freetype/src/raster/ftraster.c
+++ b/thirdparty/freetype/src/raster/ftraster.c
@@ -4,7 +4,7 @@
*
* The FreeType glyph rasterizer (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -149,9 +149,6 @@
/*************************************************************************/
/*************************************************************************/
- /* define DEBUG_RASTER if you want to compile a debugging version */
-/* #define DEBUG_RASTER */
-
/*************************************************************************/
/*************************************************************************/
@@ -200,12 +197,13 @@
#define FT_THROW( e ) FT_ERR_CAT( Raster_Err_, e )
#endif
-#define Raster_Err_None 0
-#define Raster_Err_Not_Ini -1
-#define Raster_Err_Overflow -2
-#define Raster_Err_Neg_Height -3
-#define Raster_Err_Invalid -4
-#define Raster_Err_Unsupported -5
+#define Raster_Err_Ok 0
+#define Raster_Err_Invalid_Outline -1
+#define Raster_Err_Cannot_Render_Glyph -2
+#define Raster_Err_Invalid_Argument -3
+#define Raster_Err_Raster_Overflow -4
+#define Raster_Err_Raster_Uninitialized -5
+#define Raster_Err_Raster_Negative_Height -6
#define ft_memset memset
@@ -230,13 +228,6 @@
#include "rasterrs.h"
-#define Raster_Err_None FT_Err_Ok
-#define Raster_Err_Not_Ini Raster_Err_Raster_Uninitialized
-#define Raster_Err_Overflow Raster_Err_Raster_Overflow
-#define Raster_Err_Neg_Height Raster_Err_Raster_Negative_Height
-#define Raster_Err_Invalid Raster_Err_Invalid_Outline
-#define Raster_Err_Unsupported Raster_Err_Cannot_Render_Glyph
-
#endif /* !STANDALONE_ */
@@ -375,16 +366,6 @@
typedef PProfile* PProfileList;
- /* Simple record used to implement a stack of bands, required */
- /* by the sub-banding mechanism */
- typedef struct black_TBand_
- {
- Short y_min; /* band's minimum */
- Short y_max; /* band's maximum */
-
- } black_TBand;
-
-
#define AlignProfileSize \
( ( sizeof ( TProfile ) + sizeof ( Alignment ) - 1 ) / sizeof ( Long ) )
@@ -426,8 +407,8 @@
/* prototypes used for sweep function dispatch */
typedef void
- Function_Sweep_Init( RAS_ARGS Short* min,
- Short* max );
+ Function_Sweep_Init( RAS_ARGS Short min,
+ Short max );
typedef void
Function_Sweep_Span( RAS_ARGS Short y,
@@ -492,10 +473,11 @@
Int numTurns; /* number of Y-turns in outline */
- TPoint* arc; /* current Bezier arc pointer */
+ Byte dropOutControl; /* current drop_out control method */
UShort bWidth; /* target bitmap width */
PByte bOrigin; /* target bitmap bottom-left origin */
+ PByte bLine; /* target bitmap current line */
Long lastX, lastY;
Long minY, maxY;
@@ -517,9 +499,6 @@
FT_Bitmap target; /* description of target bit/pixmap */
FT_Outline outline;
- Long traceOfs; /* current offset in target bitmap */
- Short traceIncr; /* sweep's increment in target bitmap */
-
/* dispatch variables */
Function_Sweep_Init* Proc_Sweep_Init;
@@ -527,18 +506,6 @@
Function_Sweep_Span* Proc_Sweep_Drop;
Function_Sweep_Step* Proc_Sweep_Step;
- Byte dropOutControl; /* current drop_out control method */
-
- Bool second_pass; /* indicates whether a horizontal pass */
- /* should be performed to control */
- /* drop-out accurately when calling */
- /* Render_Glyph. */
-
- TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */
-
- black_TBand band_stack[16]; /* band stack used for sub-banding */
- Int band_top; /* band stack top */
-
};
@@ -660,7 +627,7 @@
if ( ras.top >= ras.maxBuff )
{
- ras.error = FT_THROW( Overflow );
+ ras.error = FT_THROW( Raster_Overflow );
return FAILURE;
}
@@ -689,7 +656,7 @@
default:
FT_ERROR(( "New_Profile: invalid profile direction\n" ));
- ras.error = FT_THROW( Invalid );
+ ras.error = FT_THROW( Invalid_Outline );
return FAILURE;
}
@@ -731,7 +698,7 @@
if ( h < 0 )
{
FT_ERROR(( "End_Profile: negative height encountered\n" ));
- ras.error = FT_THROW( Neg_Height );
+ ras.error = FT_THROW( Raster_Negative_Height );
return FAILURE;
}
@@ -767,7 +734,7 @@
if ( ras.top >= ras.maxBuff )
{
FT_TRACE1(( "overflow in End_Profile\n" ));
- ras.error = FT_THROW( Overflow );
+ ras.error = FT_THROW( Raster_Overflow );
return FAILURE;
}
@@ -822,7 +789,7 @@
ras.maxBuff--;
if ( ras.maxBuff <= ras.top )
{
- ras.error = FT_THROW( Overflow );
+ ras.error = FT_THROW( Raster_Overflow );
return FAILURE;
}
ras.numTurns++;
@@ -1086,7 +1053,7 @@
size = e2 - e1 + 1;
if ( ras.top + size >= ras.maxBuff )
{
- ras.error = FT_THROW( Overflow );
+ ras.error = FT_THROW( Raster_Overflow );
return FAILURE;
}
@@ -1209,6 +1176,7 @@
*/
static Bool
Bezier_Up( RAS_ARGS Int degree,
+ TPoint* arc,
TSplitter splitter,
Long miny,
Long maxy )
@@ -1216,13 +1184,11 @@
Long y1, y2, e, e2, e0;
Short f1;
- TPoint* arc;
TPoint* start_arc;
PLong top;
- arc = ras.arc;
y1 = arc[degree].y;
y2 = arc[0].y;
top = ras.top;
@@ -1271,7 +1237,7 @@
if ( ( top + TRUNC( e2 - e ) + 1 ) >= ras.maxBuff )
{
ras.top = top;
- ras.error = FT_THROW( Overflow );
+ ras.error = FT_THROW( Raster_Overflow );
return FAILURE;
}
@@ -1314,7 +1280,6 @@
Fin:
ras.top = top;
- ras.arc -= degree;
return SUCCESS;
}
@@ -1346,11 +1311,11 @@
*/
static Bool
Bezier_Down( RAS_ARGS Int degree,
+ TPoint* arc,
TSplitter splitter,
Long miny,
Long maxy )
{
- TPoint* arc = ras.arc;
Bool result, fresh;
@@ -1362,7 +1327,7 @@
fresh = ras.fresh;
- result = Bezier_Up( RAS_VARS degree, splitter, -maxy, -miny );
+ result = Bezier_Up( RAS_VARS degree, arc, splitter, -maxy, -miny );
if ( fresh && !ras.fresh )
ras.cProfile->start = -ras.cProfile->start;
@@ -1503,22 +1468,24 @@
{
Long y1, y2, y3, x3, ymin, ymax;
TStates state_bez;
+ TPoint arcs[2 * MaxBezier + 1]; /* The Bezier stack */
+ TPoint* arc; /* current Bezier arc pointer */
- ras.arc = ras.arcs;
- ras.arc[2].x = ras.lastX;
- ras.arc[2].y = ras.lastY;
- ras.arc[1].x = cx;
- ras.arc[1].y = cy;
- ras.arc[0].x = x;
- ras.arc[0].y = y;
+ arc = arcs;
+ arc[2].x = ras.lastX;
+ arc[2].y = ras.lastY;
+ arc[1].x = cx;
+ arc[1].y = cy;
+ arc[0].x = x;
+ arc[0].y = y;
do
{
- y1 = ras.arc[2].y;
- y2 = ras.arc[1].y;
- y3 = ras.arc[0].y;
- x3 = ras.arc[0].x;
+ y1 = arc[2].y;
+ y2 = arc[1].y;
+ y3 = arc[0].y;
+ x3 = arc[0].x;
/* first, categorize the Bezier arc */
@@ -1536,13 +1503,13 @@
if ( y2 < ymin || y2 > ymax )
{
/* this arc has no given direction, split it! */
- Split_Conic( ras.arc );
- ras.arc += 2;
+ Split_Conic( arc );
+ arc += 2;
}
else if ( y1 == y3 )
{
/* this arc is flat, ignore it and pop it from the Bezier stack */
- ras.arc -= 2;
+ arc -= 2;
}
else
{
@@ -1569,15 +1536,18 @@
/* now call the appropriate routine */
if ( state_bez == Ascending_State )
{
- if ( Bezier_Up( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) )
+ if ( Bezier_Up( RAS_VARS 2, arc, Split_Conic,
+ ras.minY, ras.maxY ) )
goto Fail;
}
else
- if ( Bezier_Down( RAS_VARS 2, Split_Conic, ras.minY, ras.maxY ) )
+ if ( Bezier_Down( RAS_VARS 2, arc, Split_Conic,
+ ras.minY, ras.maxY ) )
goto Fail;
+ arc -= 2;
}
- } while ( ras.arc >= ras.arcs );
+ } while ( arc >= arcs );
ras.lastX = x3;
ras.lastY = y3;
@@ -1632,25 +1602,27 @@
{
Long y1, y2, y3, y4, x4, ymin1, ymax1, ymin2, ymax2;
TStates state_bez;
+ TPoint arcs[3 * MaxBezier + 1]; /* The Bezier stack */
+ TPoint* arc; /* current Bezier arc pointer */
- ras.arc = ras.arcs;
- ras.arc[3].x = ras.lastX;
- ras.arc[3].y = ras.lastY;
- ras.arc[2].x = cx1;
- ras.arc[2].y = cy1;
- ras.arc[1].x = cx2;
- ras.arc[1].y = cy2;
- ras.arc[0].x = x;
- ras.arc[0].y = y;
+ arc = arcs;
+ arc[3].x = ras.lastX;
+ arc[3].y = ras.lastY;
+ arc[2].x = cx1;
+ arc[2].y = cy1;
+ arc[1].x = cx2;
+ arc[1].y = cy2;
+ arc[0].x = x;
+ arc[0].y = y;
do
{
- y1 = ras.arc[3].y;
- y2 = ras.arc[2].y;
- y3 = ras.arc[1].y;
- y4 = ras.arc[0].y;
- x4 = ras.arc[0].x;
+ y1 = arc[3].y;
+ y2 = arc[2].y;
+ y3 = arc[1].y;
+ y4 = arc[0].y;
+ x4 = arc[0].x;
/* first, categorize the Bezier arc */
@@ -1679,13 +1651,13 @@
if ( ymin2 < ymin1 || ymax2 > ymax1 )
{
/* this arc has no given direction, split it! */
- Split_Cubic( ras.arc );
- ras.arc += 3;
+ Split_Cubic( arc );
+ arc += 3;
}
else if ( y1 == y4 )
{
/* this arc is flat, ignore it and pop it from the Bezier stack */
- ras.arc -= 3;
+ arc -= 3;
}
else
{
@@ -1711,15 +1683,18 @@
/* compute intersections */
if ( state_bez == Ascending_State )
{
- if ( Bezier_Up( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) )
+ if ( Bezier_Up( RAS_VARS 3, arc, Split_Cubic,
+ ras.minY, ras.maxY ) )
goto Fail;
}
else
- if ( Bezier_Down( RAS_VARS 3, Split_Cubic, ras.minY, ras.maxY ) )
+ if ( Bezier_Down( RAS_VARS 3, arc, Split_Cubic,
+ ras.minY, ras.maxY ) )
goto Fail;
+ arc -= 3;
}
- } while ( ras.arc >= ras.arcs );
+ } while ( arc >= arcs );
ras.lastX = x4;
ras.lastY = y4;
@@ -1967,7 +1942,7 @@
return SUCCESS;
Invalid_Outline:
- ras.error = FT_THROW( Invalid );
+ ras.error = FT_THROW( Invalid_Outline );
Fail:
return FAILURE;
@@ -2120,8 +2095,8 @@
* Removes an old profile from a linked list.
*/
static void
- DelOld( PProfileList list,
- PProfile profile )
+ DelOld( PProfileList list,
+ const PProfile profile )
{
PProfile *old, current;
@@ -2214,16 +2189,13 @@
*/
static void
- Vertical_Sweep_Init( RAS_ARGS Short* min,
- Short* max )
+ Vertical_Sweep_Init( RAS_ARGS Short min,
+ Short max )
{
- Long pitch = ras.target.pitch;
-
FT_UNUSED( max );
- ras.traceIncr = (Short)-pitch;
- ras.traceOfs = -*min * pitch;
+ ras.bLine = ras.bOrigin - min * ras.target.pitch;
}
@@ -2234,8 +2206,7 @@
PProfile left,
PProfile right )
{
- Long e1, e2;
- Byte* target;
+ Long e1, e2;
Int dropOutControl = left->flags & 7;
@@ -2268,6 +2239,8 @@
if ( e2 >= 0 && e1 < ras.bWidth )
{
+ Byte* target;
+
Int c1, c2;
Byte f1, f2;
@@ -2285,7 +2258,7 @@
f1 = (Byte) ( 0xFF >> ( e1 & 7 ) );
f2 = (Byte) ~( 0x7F >> ( e2 & 7 ) );
- target = ras.bOrigin + ras.traceOfs + c1;
+ target = ras.bLine + c1;
c2 -= c1;
if ( c2 > 0 )
@@ -2437,8 +2410,8 @@
c1 = (Short)( e1 >> 3 );
f1 = (Short)( e1 & 7 );
- if ( e1 >= 0 && e1 < ras.bWidth &&
- ras.bOrigin[ras.traceOfs + c1] & ( 0x80 >> f1 ) )
+ if ( e1 >= 0 && e1 < ras.bWidth &&
+ ras.bLine[c1] & ( 0x80 >> f1 ) )
goto Exit;
}
else
@@ -2454,7 +2427,7 @@
c1 = (Short)( e1 >> 3 );
f1 = (Short)( e1 & 7 );
- ras.bOrigin[ras.traceOfs + c1] |= (char)( 0x80 >> f1 );
+ ras.bLine[c1] |= (char)( 0x80 >> f1 );
}
Exit:
@@ -2465,7 +2438,7 @@
static void
Vertical_Sweep_Step( RAS_ARG )
{
- ras.traceOfs += ras.traceIncr;
+ ras.bLine -= ras.target.pitch;
}
@@ -2479,8 +2452,8 @@
*/
static void
- Horizontal_Sweep_Init( RAS_ARGS Short* min,
- Short* max )
+ Horizontal_Sweep_Init( RAS_ARGS Short min,
+ Short max )
{
/* nothing, really */
FT_UNUSED_RASTER;
@@ -2744,13 +2717,13 @@
/* check the Y-turns */
if ( ras.numTurns == 0 )
{
- ras.error = FT_THROW( Invalid );
+ ras.error = FT_THROW( Invalid_Outline );
return FAILURE;
}
/* now initialize the sweep */
- ras.Proc_Sweep_Init( RAS_VARS &min_Y, &max_Y );
+ ras.Proc_Sweep_Init( RAS_VARS min_Y, max_Y );
/* then compute the distance of each profile from min_Y */
@@ -2977,11 +2950,11 @@
FT_Outline_Get_CBox( const FT_Outline* outline,
FT_BBox *acbox )
{
- Long xMin, yMin, xMax, yMax;
-
-
if ( outline && acbox )
{
+ Long xMin, yMin, xMax, yMax;
+
+
if ( outline->n_points == 0 )
{
xMin = 0;
@@ -3039,63 +3012,54 @@
* Renderer error code.
*/
static int
- Render_Single_Pass( RAS_ARGS Bool flipped )
+ Render_Single_Pass( RAS_ARGS Bool flipped,
+ Int y_min,
+ Int y_max )
{
- Short i, j, k;
+ Int y_mid;
+ Int band_top = 0;
+ Int band_stack[32]; /* enough to bisect 32-bit int bands */
- while ( ras.band_top >= 0 )
+ while ( 1 )
{
- ras.maxY = (Long)ras.band_stack[ras.band_top].y_max * ras.precision;
- ras.minY = (Long)ras.band_stack[ras.band_top].y_min * ras.precision;
+ ras.minY = (Long)y_min * ras.precision;
+ ras.maxY = (Long)y_max * ras.precision;
ras.top = ras.buff;
- ras.error = Raster_Err_None;
+ ras.error = Raster_Err_Ok;
if ( Convert_Glyph( RAS_VARS flipped ) )
{
- if ( ras.error != Raster_Err_Overflow )
- return FAILURE;
-
- ras.error = Raster_Err_None;
+ if ( ras.error != Raster_Err_Raster_Overflow )
+ return ras.error;
/* sub-banding */
-#ifdef DEBUG_RASTER
- ClearBand( RAS_VARS TRUNC( ras.minY ), TRUNC( ras.maxY ) );
-#endif
+ if ( y_min == y_max )
+ return ras.error; /* still Raster_Overflow */
- i = ras.band_stack[ras.band_top].y_min;
- j = ras.band_stack[ras.band_top].y_max;
+ y_mid = ( y_min + y_max ) >> 1;
- k = (Short)( ( i + j ) / 2 );
-
- if ( ras.band_top >= 7 || k < i )
- {
- ras.band_top = 0;
- ras.error = FT_THROW( Invalid );
-
- return ras.error;
- }
-
- ras.band_stack[ras.band_top + 1].y_min = k;
- ras.band_stack[ras.band_top + 1].y_max = j;
-
- ras.band_stack[ras.band_top].y_max = (Short)( k - 1 );
-
- ras.band_top++;
+ band_stack[band_top++] = y_min;
+ y_min = y_mid + 1;
}
else
{
if ( ras.fProfile )
if ( Draw_Sweep( RAS_VAR ) )
return ras.error;
- ras.band_top--;
+
+ if ( --band_top < 0 )
+ break;
+
+ y_max = y_min - 1;
+ y_min = band_stack[band_top];
}
}
- return SUCCESS;
+ return Raster_Err_Ok;
}
@@ -3132,9 +3096,6 @@
ras.dropOutControl += 1;
}
- ras.second_pass = (Bool)( !( ras.outline.flags &
- FT_OUTLINE_SINGLE_PASS ) );
-
/* Vertical Sweep */
FT_TRACE7(( "Vertical pass (ftraster)\n" ));
@@ -3143,21 +3104,18 @@
ras.Proc_Sweep_Drop = Vertical_Sweep_Drop;
ras.Proc_Sweep_Step = Vertical_Sweep_Step;
- ras.band_top = 0;
- ras.band_stack[0].y_min = 0;
- ras.band_stack[0].y_max = (Short)( ras.target.rows - 1 );
-
ras.bWidth = (UShort)ras.target.width;
ras.bOrigin = (Byte*)ras.target.buffer;
if ( ras.target.pitch > 0 )
ras.bOrigin += (Long)( ras.target.rows - 1 ) * ras.target.pitch;
- if ( ( error = Render_Single_Pass( RAS_VARS 0 ) ) != 0 )
+ error = Render_Single_Pass( RAS_VARS 0, 0, (Int)ras.target.rows - 1 );
+ if ( error )
return error;
/* Horizontal Sweep */
- if ( ras.second_pass && ras.dropOutControl != 2 )
+ if ( !( ras.outline.flags & FT_OUTLINE_SINGLE_PASS ) )
{
FT_TRACE7(( "Horizontal pass (ftraster)\n" ));
@@ -3166,22 +3124,12 @@
ras.Proc_Sweep_Drop = Horizontal_Sweep_Drop;
ras.Proc_Sweep_Step = Horizontal_Sweep_Step;
- ras.band_top = 0;
- ras.band_stack[0].y_min = 0;
- ras.band_stack[0].y_max = (Short)( ras.target.width - 1 );
-
- if ( ( error = Render_Single_Pass( RAS_VARS 1 ) ) != 0 )
+ error = Render_Single_Pass( RAS_VARS 1, 0, (Int)ras.target.width - 1 );
+ if ( error )
return error;
}
- return Raster_Err_None;
- }
-
-
- static void
- ft_black_init( black_PRaster raster )
- {
- FT_UNUSED( raster );
+ return Raster_Err_Ok;
}
@@ -3202,7 +3150,6 @@
*araster = (FT_Raster)&the_raster;
FT_ZERO( &the_raster );
- ft_black_init( &the_raster );
return 0;
}
@@ -3227,14 +3174,10 @@
black_PRaster raster = NULL;
- *araster = 0;
if ( !FT_NEW( raster ) )
- {
raster->memory = memory;
- ft_black_init( raster );
- *araster = raster;
- }
+ *araster = raster;
return error;
}
@@ -3292,38 +3235,36 @@
if ( !raster )
- return FT_THROW( Not_Ini );
+ return FT_THROW( Raster_Uninitialized );
if ( !outline )
- return FT_THROW( Invalid );
+ return FT_THROW( Invalid_Outline );
/* return immediately if the outline is empty */
if ( outline->n_points == 0 || outline->n_contours <= 0 )
- return Raster_Err_None;
+ return Raster_Err_Ok;
if ( !outline->contours || !outline->points )
- return FT_THROW( Invalid );
+ return FT_THROW( Invalid_Outline );
if ( outline->n_points !=
outline->contours[outline->n_contours - 1] + 1 )
- return FT_THROW( Invalid );
+ return FT_THROW( Invalid_Outline );
/* this version of the raster does not support direct rendering, sorry */
- if ( params->flags & FT_RASTER_FLAG_DIRECT )
- return FT_THROW( Unsupported );
-
- if ( params->flags & FT_RASTER_FLAG_AA )
- return FT_THROW( Unsupported );
+ if ( params->flags & FT_RASTER_FLAG_DIRECT ||
+ params->flags & FT_RASTER_FLAG_AA )
+ return FT_THROW( Cannot_Render_Glyph );
if ( !target_map )
- return FT_THROW( Invalid );
+ return FT_THROW( Invalid_Argument );
/* nothing to do */
if ( !target_map->width || !target_map->rows )
- return Raster_Err_None;
+ return Raster_Err_Ok;
if ( !target_map->buffer )
- return FT_THROW( Invalid );
+ return FT_THROW( Invalid_Argument );
ras.outline = *outline;
ras.target = *target_map;
diff --git a/thirdparty/freetype/src/raster/ftraster.h b/thirdparty/freetype/src/raster/ftraster.h
index 1b2ee3c016..4affd48b51 100644
--- a/thirdparty/freetype/src/raster/ftraster.h
+++ b/thirdparty/freetype/src/raster/ftraster.h
@@ -4,7 +4,7 @@
*
* The FreeType glyph rasterizer (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used
diff --git a/thirdparty/freetype/src/raster/ftrend1.c b/thirdparty/freetype/src/raster/ftrend1.c
index 57fed9bc14..236a8daf0a 100644
--- a/thirdparty/freetype/src/raster/ftrend1.c
+++ b/thirdparty/freetype/src/raster/ftrend1.c
@@ -4,7 +4,7 @@
*
* The FreeType glyph rasterizer interface (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/raster/ftrend1.h b/thirdparty/freetype/src/raster/ftrend1.h
index 3f6be53675..e4cea53741 100644
--- a/thirdparty/freetype/src/raster/ftrend1.h
+++ b/thirdparty/freetype/src/raster/ftrend1.h
@@ -4,7 +4,7 @@
*
* The FreeType glyph rasterizer interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/raster/module.mk b/thirdparty/freetype/src/raster/module.mk
deleted file mode 100644
index 3600732b16..0000000000
--- a/thirdparty/freetype/src/raster/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 renderer module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += RASTER_MODULE
-
-define RASTER_MODULE
-$(OPEN_DRIVER) FT_Renderer_Class, ft_raster1_renderer_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)raster $(ECHO_DRIVER_DESC)monochrome bitmap renderer$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/raster/raster.c b/thirdparty/freetype/src/raster/raster.c
index cd37943bf6..ad81a39414 100644
--- a/thirdparty/freetype/src/raster/raster.c
+++ b/thirdparty/freetype/src/raster/raster.c
@@ -4,7 +4,7 @@
*
* FreeType monochrome rasterer module component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/raster/rasterrs.h b/thirdparty/freetype/src/raster/rasterrs.h
index a29651a6c5..852dd5bc31 100644
--- a/thirdparty/freetype/src/raster/rasterrs.h
+++ b/thirdparty/freetype/src/raster/rasterrs.h
@@ -4,7 +4,7 @@
*
* monochrome renderer error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/raster/rules.mk b/thirdparty/freetype/src/raster/rules.mk
deleted file mode 100644
index 3e949d7741..0000000000
--- a/thirdparty/freetype/src/raster/rules.mk
+++ /dev/null
@@ -1,72 +0,0 @@
-#
-# FreeType 2 renderer module build rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# raster driver directory
-#
-RASTER_DIR := $(SRC_DIR)/raster
-
-# compilation flags for the driver
-#
-RASTER_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(RASTER_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# raster driver sources (i.e., C files)
-#
-RASTER_DRV_SRC := $(RASTER_DIR)/ftraster.c \
- $(RASTER_DIR)/ftrend1.c
-
-
-# raster driver headers
-#
-RASTER_DRV_H := $(RASTER_DRV_SRC:%.c=%.h) \
- $(RASTER_DIR)/rasterrs.h
-
-
-# raster driver object(s)
-#
-# RASTER_DRV_OBJ_M is used during `multi' builds.
-# RASTER_DRV_OBJ_S is used during `single' builds.
-#
-RASTER_DRV_OBJ_M := $(RASTER_DRV_SRC:$(RASTER_DIR)/%.c=$(OBJ_DIR)/%.$O)
-RASTER_DRV_OBJ_S := $(OBJ_DIR)/raster.$O
-
-# raster driver source file for single build
-#
-RASTER_DRV_SRC_S := $(RASTER_DIR)/raster.c
-
-
-# raster driver - single object
-#
-$(RASTER_DRV_OBJ_S): $(RASTER_DRV_SRC_S) $(RASTER_DRV_SRC) \
- $(FREETYPE_H) $(RASTER_DRV_H)
- $(RASTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(RASTER_DRV_SRC_S))
-
-
-# raster driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(RASTER_DIR)/%.c $(FREETYPE_H) $(RASTER_DRV_H)
- $(RASTER_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(RASTER_DRV_OBJ_S)
-DRV_OBJS_M += $(RASTER_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/sdf/ftbsdf.c b/thirdparty/freetype/src/sdf/ftbsdf.c
new file mode 100644
index 0000000000..8da5c9d9e0
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftbsdf.c
@@ -0,0 +1,1347 @@
+/****************************************************************************
+ *
+ * ftbsdf.c
+ *
+ * Signed Distance Field support for bitmap fonts (body only).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftmemory.h>
+#include <freetype/fttrigon.h>
+
+#include "ftsdf.h"
+#include "ftsdferrs.h"
+#include "ftsdfcommon.h"
+
+
+ /**************************************************************************
+ *
+ * A brief technical overview of how the BSDF rasterizer works
+ * -----------------------------------------------------------
+ *
+ * [Notes]:
+ * * SDF stands for Signed Distance Field everywhere.
+ *
+ * * BSDF stands for Bitmap to Signed Distance Field rasterizer.
+ *
+ * * This renderer converts rasterized bitmaps to SDF. There is another
+ * renderer called 'sdf', which generates SDF directly from outlines;
+ * see file `ftsdf.c` for more.
+ *
+ * * The idea of generating SDF from bitmaps is taken from two research
+ * papers, where one is dependent on the other:
+ *
+ * - Per-Erik Danielsson: Euclidean Distance Mapping
+ * http://webstaff.itn.liu.se/~stegu/JFA/Danielsson.pdf
+ *
+ * From this paper we use the eight-point sequential Euclidean
+ * distance mapping (8SED). This is the heart of the process used
+ * in this rasterizer.
+ *
+ * - Stefan Gustavson, Robin Strand: Anti-aliased Euclidean distance transform.
+ * http://weber.itn.liu.se/~stegu/aadist/edtaa_preprint.pdf
+ *
+ * The original 8SED algorithm discards the pixels' alpha values,
+ * which can contain information about the actual outline of the
+ * glyph. This paper takes advantage of those alpha values and
+ * approximates outline pretty accurately.
+ *
+ * * This rasterizer also works for monochrome bitmaps. However, the
+ * result is not as accurate since we don't have any way to
+ * approximate outlines from binary bitmaps.
+ *
+ * ========================================================================
+ *
+ * Generating SDF from bitmap is done in several steps.
+ *
+ * (1) The only information we have is the bitmap itself. It can
+ * be monochrome or anti-aliased. If it is anti-aliased, pixel values
+ * are nothing but coverage values. These coverage values can be used
+ * to extract information about the outline of the image. For
+ * example, if the pixel's alpha value is 0.5, then we can safely
+ * assume that the outline passes through the center of the pixel.
+ *
+ * (2) Find edge pixels in the bitmap (see `bsdf_is_edge` for more). For
+ * all edge pixels we use the Anti-aliased Euclidean distance
+ * transform algorithm and compute approximate edge distances (see
+ * `compute_edge_distance` and/or the second paper for more).
+ *
+ * (3) Now that we have computed approximate distances for edge pixels we
+ * use the 8SED algorithm to basically sweep the entire bitmap and
+ * compute distances for the rest of the pixels. (Since the algorithm
+ * is pretty convoluted it is only explained briefly in a comment to
+ * function `edt8`. To see the actual algorithm refer to the first
+ * paper.)
+ *
+ * (4) Finally, compute the sign for each pixel. This is done in function
+ * `finalize_sdf`. The basic idea is that if a pixel's original
+ * alpha/coverage value is greater than 0.5 then it is 'inside' (and
+ * 'outside' otherwise).
+ *
+ * Pseudo Code:
+ *
+ * ```
+ * b = source bitmap;
+ * t = target bitmap;
+ * dm = list of distances; // dimension equal to b
+ *
+ * foreach grid_point (x, y) in b:
+ * {
+ * if (is_edge(x, y)):
+ * dm = approximate_edge_distance(b, x, y);
+ *
+ * // do the 8SED on the distances
+ * edt8(dm);
+ *
+ * // determine the signs
+ * determine_signs(dm):
+ *
+ * // copy SDF data to the target bitmap
+ * copy(dm to t);
+ * }
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * The macro FT_COMPONENT is used in trace mode. It is an implicit
+ * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+ * messages during execution.
+ */
+#undef FT_COMPONENT
+#define FT_COMPONENT bsdf
+
+
+ /**************************************************************************
+ *
+ * useful macros
+ *
+ */
+
+#define ONE 65536 /* 1 in 16.16 */
+
+
+ /**************************************************************************
+ *
+ * structs
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * BSDF_TRaster
+ *
+ * @Description:
+ * This struct is used in place of @FT_Raster and is stored within the
+ * internal FreeType renderer struct. While rasterizing this is passed
+ * to the @FT_Raster_RenderFunc function, which then can be used however
+ * we want.
+ *
+ * @Fields:
+ * memory ::
+ * Used internally to allocate intermediate memory while raterizing.
+ *
+ */
+ typedef struct BSDF_TRaster_
+ {
+ FT_Memory memory;
+
+ } BSDF_TRaster, *BSDF_PRaster;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * ED
+ *
+ * @Description:
+ * Euclidean distance. It gets used for Euclidean distance transforms;
+ * it can also be interpreted as an edge distance.
+ *
+ * @Fields:
+ * dist ::
+ * Vector length of the `near` parameter. Can be squared or absolute
+ * depending on the `USE_SQUARED_DISTANCES` macro defined in file
+ * `ftsdfcommon.h`.
+ *
+ * near ::
+ * Vector to the nearest edge. Can also be interpreted as shortest
+ * distance of a point.
+ *
+ * alpha ::
+ * Alpha value of the original bitmap from which we generate SDF.
+ * Needed for computing the gradient and determining the proper sign
+ * of a pixel.
+ *
+ */
+ typedef struct ED_
+ {
+ FT_16D16 dist;
+ FT_16D16_Vec near;
+ FT_Byte alpha;
+
+ } ED;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * BSDF_Worker
+ *
+ * @Description:
+ * A convenience struct that is passed to functions while generating
+ * SDF; most of those functions require the same parameters.
+ *
+ * @Fields:
+ * distance_map ::
+ * A one-dimensional array that gets interpreted as two-dimensional
+ * one. It contains the Euclidean distances of all points of the
+ * bitmap.
+ *
+ * width ::
+ * Width of the above `distance_map`.
+ *
+ * rows ::
+ * Number of rows in the above `distance_map`.
+ *
+ * params ::
+ * Internal parameters and properties required by the rasterizer. See
+ * file `ftsdf.h` for more.
+ *
+ */
+ typedef struct BSDF_Worker_
+ {
+ ED* distance_map;
+
+ FT_Int width;
+ FT_Int rows;
+
+ SDF_Raster_Params params;
+
+ } BSDF_Worker;
+
+
+ /**************************************************************************
+ *
+ * initializer
+ *
+ */
+
+ static const ED zero_ed = { 0, { 0, 0 }, 0 };
+
+
+ /**************************************************************************
+ *
+ * rasterizer functions
+ *
+ */
+
+ /**************************************************************************
+ *
+ * @Function:
+ * bsdf_is_edge
+ *
+ * @Description:
+ * Check whether a pixel is an edge pixel, i.e., whether it is
+ * surrounded by a completely black pixel (zero alpha), and the current
+ * pixel is not a completely black pixel.
+ *
+ * @Input:
+ * dm ::
+ * Array of distances. The parameter must point to the current
+ * pixel, i.e., the pixel that is to be checked for being an edge.
+ *
+ * x ::
+ * The x position of the current pixel.
+ *
+ * y ::
+ * The y position of the current pixel.
+ *
+ * w ::
+ * Width of the bitmap.
+ *
+ * r ::
+ * Number of rows in the bitmap.
+ *
+ * @Return:
+ * 1~if the current pixel is an edge pixel, 0~otherwise.
+ *
+ */
+
+#ifdef CHECK_NEIGHBOR
+#undef CHECK_NEIGHBOR
+#endif
+
+#define CHECK_NEIGHBOR( x_offset, y_offset ) \
+ do \
+ { \
+ if ( x + x_offset >= 0 && x + x_offset < w && \
+ y + y_offset >= 0 && y + y_offset < r ) \
+ { \
+ num_neighbors++; \
+ \
+ to_check = dm + y_offset * w + x_offset; \
+ if ( to_check->alpha == 0 ) \
+ { \
+ is_edge = 1; \
+ goto Done; \
+ } \
+ } \
+ } while ( 0 )
+
+ static FT_Bool
+ bsdf_is_edge( ED* dm, /* distance map */
+ FT_Int x, /* x index of point to check */
+ FT_Int y, /* y index of point to check */
+ FT_Int w, /* width */
+ FT_Int r ) /* rows */
+ {
+ FT_Bool is_edge = 0;
+ ED* to_check = NULL;
+ FT_Int num_neighbors = 0;
+
+
+ if ( dm->alpha == 0 )
+ goto Done;
+
+ if ( dm->alpha > 0 && dm->alpha < 255 )
+ {
+ is_edge = 1;
+ goto Done;
+ }
+
+ /* up */
+ CHECK_NEIGHBOR( 0, -1 );
+
+ /* down */
+ CHECK_NEIGHBOR( 0, 1 );
+
+ /* left */
+ CHECK_NEIGHBOR( -1, 0 );
+
+ /* right */
+ CHECK_NEIGHBOR( 1, 0 );
+
+ /* up left */
+ CHECK_NEIGHBOR( -1, -1 );
+
+ /* up right */
+ CHECK_NEIGHBOR( 1, -1 );
+
+ /* down left */
+ CHECK_NEIGHBOR( -1, 1 );
+
+ /* down right */
+ CHECK_NEIGHBOR( 1, 1 );
+
+ if ( num_neighbors != 8 )
+ is_edge = 1;
+
+ Done:
+ return is_edge;
+ }
+
+#undef CHECK_NEIGHBOR
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * compute_edge_distance
+ *
+ * @Description:
+ * Approximate the outline and compute the distance from `current`
+ * to the approximated outline.
+ *
+ * @Input:
+ * current ::
+ * Array of Euclidean distances. `current` must point to the position
+ * for which the distance is to be caculated. We treat this array as
+ * a two-dimensional array mapped to a one-dimensional array.
+ *
+ * x ::
+ * The x coordinate of the `current` parameter in the array.
+ *
+ * y ::
+ * The y coordinate of the `current` parameter in the array.
+ *
+ * w ::
+ * The width of the distances array.
+ *
+ * r ::
+ * Number of rows in the distances array.
+ *
+ * @Return:
+ * A vector pointing to the approximate edge distance.
+ *
+ * @Note:
+ * This is a computationally expensive function. Try to reduce the
+ * number of calls to this function. Moreover, this must only be used
+ * for edge pixel positions.
+ *
+ */
+ static FT_16D16_Vec
+ compute_edge_distance( ED* current,
+ FT_Int x,
+ FT_Int y,
+ FT_Int w,
+ FT_Int r )
+ {
+ /*
+ * This function, based on the paper presented by Stefan Gustavson and
+ * Robin Strand, gets used to approximate edge distances from
+ * anti-aliased bitmaps.
+ *
+ * The algorithm is as follows.
+ *
+ * (1) In anti-aliased images, the pixel's alpha value is the coverage
+ * of the pixel by the outline. For example, if the alpha value is
+ * 0.5f we can assume that the outline passes through the center of
+ * the pixel.
+ *
+ * (2) For this reason we can use that alpha value to approximate the real
+ * distance of the pixel to edge pretty accurately. A simple
+ * approximation is `(0.5f - alpha)`, assuming that the outline is
+ * parallel to the x or y~axis. However, in this algorithm we use a
+ * different approximation which is quite accurate even for
+ * non-axis-aligned edges.
+ *
+ * (3) The only remaining piece of information that we cannot
+ * approximate directly from the alpha is the direction of the edge.
+ * This is where we use Sobel's operator to compute the gradient of
+ * the pixel. The gradient give us a pretty good approximation of
+ * the edge direction. We use a 3x3 kernel filter to compute the
+ * gradient.
+ *
+ * (4) After the above two steps we have both the direction and the
+ * distance to the edge which is used to generate the Signed
+ * Distance Field.
+ *
+ * References:
+ *
+ * - Anti-Aliased Euclidean Distance Transform:
+ * http://weber.itn.liu.se/~stegu/aadist/edtaa_preprint.pdf
+ * - Sobel Operator:
+ * https://en.wikipedia.org/wiki/Sobel_operator
+ */
+
+ FT_16D16_Vec g = { 0, 0 };
+ FT_16D16 dist, current_alpha;
+ FT_16D16 a1, temp;
+ FT_16D16 gx, gy;
+ FT_16D16 alphas[9];
+
+
+ /* Since our spread cannot be 0, this condition */
+ /* can never be true. */
+ if ( x <= 0 || x >= w - 1 ||
+ y <= 0 || y >= r - 1 )
+ return g;
+
+ /* initialize the alphas */
+ alphas[0] = 256 * (FT_16D16)current[-w - 1].alpha;
+ alphas[1] = 256 * (FT_16D16)current[-w ].alpha;
+ alphas[2] = 256 * (FT_16D16)current[-w + 1].alpha;
+ alphas[3] = 256 * (FT_16D16)current[ -1].alpha;
+ alphas[4] = 256 * (FT_16D16)current[ 0].alpha;
+ alphas[5] = 256 * (FT_16D16)current[ 1].alpha;
+ alphas[6] = 256 * (FT_16D16)current[ w - 1].alpha;
+ alphas[7] = 256 * (FT_16D16)current[ w ].alpha;
+ alphas[8] = 256 * (FT_16D16)current[ w + 1].alpha;
+
+ current_alpha = alphas[4];
+
+ /* Compute the gradient using the Sobel operator. */
+ /* In this case we use the following 3x3 filters: */
+ /* */
+ /* For x: | -1 0 -1 | */
+ /* | -root(2) 0 root(2) | */
+ /* | -1 0 1 | */
+ /* */
+ /* For y: | -1 -root(2) -1 | */
+ /* | 0 0 0 | */
+ /* | 1 root(2) 1 | */
+ /* */
+ /* [Note]: 92681 is root(2) in 16.16 format. */
+ g.x = -alphas[0] -
+ FT_MulFix( alphas[3], 92681 ) -
+ alphas[6] +
+ alphas[2] +
+ FT_MulFix( alphas[5], 92681 ) +
+ alphas[8];
+
+ g.y = -alphas[0] -
+ FT_MulFix( alphas[1], 92681 ) -
+ alphas[2] +
+ alphas[6] +
+ FT_MulFix( alphas[7], 92681 ) +
+ alphas[8];
+
+ FT_Vector_NormLen( &g );
+
+ /* The gradient gives us the direction of the */
+ /* edge for the current pixel. Once we have the */
+ /* approximate direction of the edge, we can */
+ /* approximate the edge distance much better. */
+
+ if ( g.x == 0 || g.y == 0 )
+ dist = ONE / 2 - alphas[4];
+ else
+ {
+ gx = g.x;
+ gy = g.y;
+
+ gx = FT_ABS( gx );
+ gy = FT_ABS( gy );
+
+ if ( gx < gy )
+ {
+ temp = gx;
+ gx = gy;
+ gy = temp;
+ }
+
+ a1 = FT_DivFix( gy, gx ) / 2;
+
+ if ( current_alpha < a1 )
+ dist = ( gx + gy ) / 2 -
+ square_root( 2 * FT_MulFix( gx,
+ FT_MulFix( gy,
+ current_alpha ) ) );
+
+ else if ( current_alpha < ( ONE - a1 ) )
+ dist = FT_MulFix( ONE / 2 - current_alpha, gx );
+
+ else
+ dist = -( gx + gy ) / 2 +
+ square_root( 2 * FT_MulFix( gx,
+ FT_MulFix( gy,
+ ONE - current_alpha ) ) );
+ }
+
+ g.x = FT_MulFix( g.x, dist );
+ g.y = FT_MulFix( g.y, dist );
+
+ return g;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * bsdf_approximate_edge
+ *
+ * @Description:
+ * Loops over all the pixels and call `compute_edge_distance` only for
+ * edge pixels. This maked the process a lot faster since
+ * `compute_edge_distance` uses functions such as `FT_Vector_NormLen',
+ * which are quite slow.
+ *
+ * @InOut:
+ * worker ::
+ * Contains the distance map as well as all the relevant parameters
+ * required by the function.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The function directly manipulates `worker->distance_map`.
+ *
+ */
+ static FT_Error
+ bsdf_approximate_edge( BSDF_Worker* worker )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Int i, j;
+ FT_Int index;
+ ED* ed;
+
+
+ if ( !worker || !worker->distance_map )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ ed = worker->distance_map;
+
+ for ( j = 0; j < worker->rows; j++ )
+ {
+ for ( i = 0; i < worker->width; i++ )
+ {
+ index = j * worker->width + i;
+
+ if ( bsdf_is_edge( worker->distance_map + index,
+ i, j,
+ worker->width,
+ worker->rows ) )
+ {
+ /* approximate the edge distance for edge pixels */
+ ed[index].near = compute_edge_distance( ed + index,
+ i, j,
+ worker->width,
+ worker->rows );
+ ed[index].dist = VECTOR_LENGTH_16D16( ed[index].near );
+ }
+ else
+ {
+ /* for non-edge pixels assign far away distances */
+ ed[index].dist = 400 * ONE;
+ ed[index].near.x = 200 * ONE;
+ ed[index].near.y = 200 * ONE;
+ }
+ }
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * bsdf_init_distance_map
+ *
+ * @Description:
+ * Initialize the distance map according to the '8-point sequential
+ * Euclidean distance mapping' (8SED) algorithm. Basically it copies
+ * the `source` bitmap alpha values to the `distance_map->alpha`
+ * parameter of `worker`.
+ *
+ * @Input:
+ * source ::
+ * Source bitmap to copy the data from.
+ *
+ * @Output:
+ * worker ::
+ * Target distance map to copy the data to.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ bsdf_init_distance_map( const FT_Bitmap* source,
+ BSDF_Worker* worker )
+ {
+ FT_Error error = FT_Err_Ok;
+
+ FT_Int x_diff, y_diff;
+ FT_Int t_i, t_j, s_i, s_j;
+ FT_Byte* s;
+ ED* t;
+
+
+ /* again check the parameters (probably unnecessary) */
+ if ( !source || !worker )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* Because of the way we convert a bitmap to SDF, */
+ /* i.e., aligning the source to the center of the */
+ /* target, the target's width and rows must be */
+ /* checked before copying. */
+ if ( worker->width < (FT_Int)source->width ||
+ worker->rows < (FT_Int)source->rows )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* check pixel mode */
+ if ( source->pixel_mode == FT_PIXEL_MODE_NONE )
+ {
+ FT_ERROR(( "bsdf_copy_source_to_target:"
+ " Invalid pixel mode of source bitmap" ));
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( source->pixel_mode == FT_PIXEL_MODE_MONO )
+ {
+ FT_TRACE0(( "bsdf_copy_source_to_target:"
+ " The `bsdf' renderer can convert monochrome\n" ));
+ FT_TRACE0(( " "
+ " bitmaps to SDF but the results are not perfect\n" ));
+ FT_TRACE0(( " "
+ " because there is no way to approximate actual\n" ));
+ FT_TRACE0(( " "
+ " outlines from monochrome bitmaps. Consider\n" ));
+ FT_TRACE0(( " "
+ " using an anti-aliased bitmap instead.\n" ));
+ }
+#endif
+
+ /* Calculate the width and row differences */
+ /* between target and source. */
+ x_diff = worker->width - (int)source->width;
+ y_diff = worker->rows - (int)source->rows;
+
+ x_diff /= 2;
+ y_diff /= 2;
+
+ t = (ED*)worker->distance_map;
+ s = source->buffer;
+
+ /* For now we only support pixel mode `FT_PIXEL_MODE_MONO` */
+ /* and `FT_PIXEL_MODE_GRAY`. More will be added later. */
+ /* */
+ /* [NOTE]: We can also use @FT_Bitmap_Convert to convert */
+ /* bitmap to 8bpp. To avoid extra allocation and */
+ /* since the target bitmap can be 16bpp we manually */
+ /* convert the source bitmap to the desired bpp. */
+
+ switch ( source->pixel_mode )
+ {
+ case FT_PIXEL_MODE_MONO:
+ {
+ FT_Int t_width = worker->width;
+ FT_Int t_rows = worker->rows;
+ FT_Int s_width = (int)source->width;
+ FT_Int s_rows = (int)source->rows;
+
+
+ for ( t_j = 0; t_j < t_rows; t_j++ )
+ {
+ for ( t_i = 0; t_i < t_width; t_i++ )
+ {
+ FT_Int t_index = t_j * t_width + t_i;
+ FT_Int s_index;
+ FT_Int div, mod;
+ FT_Byte pixel, byte;
+
+
+ t[t_index] = zero_ed;
+
+ s_i = t_i - x_diff;
+ s_j = t_j - y_diff;
+
+ /* Assign 0 to padding similar to */
+ /* the source bitmap. */
+ if ( s_i < 0 || s_i >= s_width ||
+ s_j < 0 || s_j >= s_rows )
+ continue;
+
+ if ( worker->params.flip_y )
+ s_index = ( s_rows - s_j - 1 ) * source->pitch;
+ else
+ s_index = s_j * source->pitch;
+
+ div = s_index + s_i / 8;
+ mod = 7 - s_i % 8;
+
+ pixel = s[div];
+ byte = (FT_Byte)( 1 << mod );
+
+ t[t_index].alpha = pixel & byte ? 255 : 0;
+
+ pixel = 0;
+ }
+ }
+ }
+ break;
+
+ case FT_PIXEL_MODE_GRAY:
+ {
+ FT_Int t_width = worker->width;
+ FT_Int t_rows = worker->rows;
+ FT_Int s_width = (int)source->width;
+ FT_Int s_rows = (int)source->rows;
+
+
+ /* loop over all pixels and assign pixel values from source */
+ for ( t_j = 0; t_j < t_rows; t_j++ )
+ {
+ for ( t_i = 0; t_i < t_width; t_i++ )
+ {
+ FT_Int t_index = t_j * t_width + t_i;
+ FT_Int s_index;
+
+
+ t[t_index] = zero_ed;
+
+ s_i = t_i - x_diff;
+ s_j = t_j - y_diff;
+
+ /* Assign 0 to padding similar to */
+ /* the source bitmap. */
+ if ( s_i < 0 || s_i >= s_width ||
+ s_j < 0 || s_j >= s_rows )
+ continue;
+
+ if ( worker->params.flip_y )
+ s_index = ( s_rows - s_j - 1 ) * s_width + s_i;
+ else
+ s_index = s_j * s_width + s_i;
+
+ /* simply copy the alpha values */
+ t[t_index].alpha = s[s_index];
+ }
+ }
+ }
+ break;
+
+ default:
+ FT_ERROR(( "bsdf_copy_source_to_target:"
+ " unsopported pixel mode of source bitmap\n" ));
+
+ error = FT_THROW( Unimplemented_Feature );
+ break;
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * compare_neighbor
+ *
+ * @Description:
+ * Compare neighbor pixel (which is defined by the offset) and update
+ * `current` distance if the new distance is shorter than the original.
+ *
+ * @Input:
+ * x_offset ::
+ * X offset of the neighbor to be checked. The offset is relative to
+ * the `current`.
+ *
+ * y_offset ::
+ * Y offset of the neighbor to be checked. The offset is relative to
+ * the `current`.
+ *
+ * width ::
+ * Width of the `current` array.
+ *
+ * @InOut:
+ * current ::
+ * Pointer into array of distances. This parameter must point to the
+ * position whose neighbor is to be checked. The array is treated as
+ * a two-dimensional array.
+ *
+ */
+ static void
+ compare_neighbor( ED* current,
+ FT_Int x_offset,
+ FT_Int y_offset,
+ FT_Int width )
+ {
+ ED* to_check;
+ FT_16D16 dist;
+ FT_16D16_Vec dist_vec;
+
+
+ to_check = current + ( y_offset * width ) + x_offset;
+
+ /*
+ * While checking for the nearest point we first approximate the
+ * distance of `current` by adding the deviation (which is sqrt(2) at
+ * most). Only if the new value is less than the current value we
+ * calculate the actual distances using `FT_Vector_Length`. This last
+ * step can be omitted by using squared distances.
+ */
+
+ /*
+ * Approximate the distance. We subtract 1 to avoid precision errors,
+ * which could happen because the two directions can be opposite.
+ */
+ dist = to_check->dist - ONE;
+
+ if ( dist < current->dist )
+ {
+ dist_vec = to_check->near;
+
+ dist_vec.x += x_offset * ONE;
+ dist_vec.y += y_offset * ONE;
+ dist = VECTOR_LENGTH_16D16( dist_vec );
+
+ if ( dist < current->dist )
+ {
+ current->dist = dist;
+ current->near = dist_vec;
+ }
+ }
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * first_pass
+ *
+ * @Description:
+ * First pass of the 8SED algorithm. Loop over the bitmap from top to
+ * bottom and scan each row left to right, updating the distances in
+ * `worker->distance_map`.
+ *
+ * @InOut:
+ * worker::
+ * Contains all the relevant parameters.
+ *
+ */
+ static void
+ first_pass( BSDF_Worker* worker )
+ {
+ FT_Int i, j; /* iterators */
+ FT_Int w, r; /* width, rows */
+ ED* dm; /* distance map */
+
+
+ dm = worker->distance_map;
+ w = worker->width;
+ r = worker->rows;
+
+ /* Start scanning from top to bottom and sweep each */
+ /* row back and forth comparing the distances of the */
+ /* neighborhood. Leave the first row as it has no top */
+ /* neighbor; it will be covered in the second scan of */
+ /* the image (from bottom to top). */
+ for ( j = 1; j < r; j++ )
+ {
+ FT_Int index;
+ ED* current;
+
+
+ /* Forward pass of rows (left -> right). Leave the first */
+ /* column, which gets covered in the backward pass. */
+ for ( i = 1; i < w - 1; i++ )
+ {
+ index = j * w + i;
+ current = dm + index;
+
+ /* left-up */
+ compare_neighbor( current, -1, -1, w );
+ /* up */
+ compare_neighbor( current, 0, -1, w );
+ /* up-right */
+ compare_neighbor( current, 1, -1, w );
+ /* left */
+ compare_neighbor( current, -1, 0, w );
+ }
+
+ /* Backward pass of rows (right -> left). Leave the last */
+ /* column, which was already covered in the forward pass. */
+ for ( i = w - 2; i >= 0; i-- )
+ {
+ index = j * w + i;
+ current = dm + index;
+
+ /* right */
+ compare_neighbor( current, 1, 0, w );
+ }
+ }
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * second_pass
+ *
+ * @Description:
+ * Second pass of the 8SED algorithm. Loop over the bitmap from bottom
+ * to top and scan each row left to right, updating the distances in
+ * `worker->distance_map`.
+ *
+ * @InOut:
+ * worker::
+ * Contains all the relevant parameters.
+ *
+ */
+ static void
+ second_pass( BSDF_Worker* worker )
+ {
+ FT_Int i, j; /* iterators */
+ FT_Int w, r; /* width, rows */
+ ED* dm; /* distance map */
+
+
+ dm = worker->distance_map;
+ w = worker->width;
+ r = worker->rows;
+
+ /* Start scanning from bottom to top and sweep each */
+ /* row back and forth comparing the distances of the */
+ /* neighborhood. Leave the last row as it has no down */
+ /* neighbor; it is already covered in the first scan */
+ /* of the image (from top to bottom). */
+ for ( j = r - 2; j >= 0; j-- )
+ {
+ FT_Int index;
+ ED* current;
+
+
+ /* Forward pass of rows (left -> right). Leave the first */
+ /* column, which gets covered in the backward pass. */
+ for ( i = 1; i < w - 1; i++ )
+ {
+ index = j * w + i;
+ current = dm + index;
+
+ /* left-up */
+ compare_neighbor( current, -1, 1, w );
+ /* up */
+ compare_neighbor( current, 0, 1, w );
+ /* up-right */
+ compare_neighbor( current, 1, 1, w );
+ /* left */
+ compare_neighbor( current, -1, 0, w );
+ }
+
+ /* Backward pass of rows (right -> left). Leave the last */
+ /* column, which was already covered in the forward pass. */
+ for ( i = w - 2; i >= 0; i-- )
+ {
+ index = j * w + i;
+ current = dm + index;
+
+ /* right */
+ compare_neighbor( current, 1, 0, w );
+ }
+ }
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * edt8
+ *
+ * @Description:
+ * Compute the distance map of the a bitmap. Execute both first and
+ * second pass of the 8SED algorithm.
+ *
+ * @InOut:
+ * worker::
+ * Contains all the relevant parameters.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ edt8( BSDF_Worker* worker )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( !worker || !worker->distance_map )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* first scan of the image */
+ first_pass( worker );
+
+ /* second scan of the image */
+ second_pass( worker );
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * finalize_sdf
+ *
+ * @Description:
+ * Copy the SDF data from `worker->distance_map` to the `target` bitmap.
+ * Also transform the data to output format, (which is 6.10 fixed-point
+ * format at the moment).
+ *
+ * @Input:
+ * worker ::
+ * Contains source distance map and other SDF data.
+ *
+ * @Output:
+ * target ::
+ * Target bitmap to which the SDF data is copied to.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ finalize_sdf( BSDF_Worker* worker,
+ const FT_Bitmap* target )
+ {
+ FT_Error error = FT_Err_Ok;
+
+ FT_Int w, r;
+ FT_Int i, j;
+
+ FT_SDFFormat* t_buffer;
+ FT_16D16 spread;
+
+
+ if ( !worker || !target )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ w = (int)target->width;
+ r = (int)target->rows;
+ t_buffer = (FT_SDFFormat*)target->buffer;
+
+ if ( w != worker->width ||
+ r != worker->rows )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+#if USE_SQUARED_DISTANCES
+ spread = FT_INT_16D16( worker->params.spread *
+ worker->params.spread );
+#else
+ spread = FT_INT_16D16( worker->params.spread );
+#endif
+
+ for ( j = 0; j < r; j++ )
+ {
+ for ( i = 0; i < w; i++ )
+ {
+ FT_Int index;
+ FT_16D16 dist;
+ FT_SDFFormat final_dist;
+ FT_Char sign;
+
+
+ index = j * w + i;
+ dist = worker->distance_map[index].dist;
+
+ if ( dist < 0 || dist > spread )
+ dist = spread;
+
+#if USE_SQUARED_DISTANCES
+ dist = square_root( dist );
+#endif
+
+ /* We assume that if the pixel is inside a contour */
+ /* its coverage value must be > 127. */
+ sign = worker->distance_map[index].alpha < 127 ? -1 : 1;
+
+ /* flip the sign according to the property */
+ if ( worker->params.flip_sign )
+ sign = -sign;
+
+ /* concatenate from 16.16 to appropriate format */
+ final_dist = map_fixed_to_sdf( dist * sign, spread );
+
+ t_buffer[index] = final_dist;
+ }
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * interface functions
+ *
+ */
+
+ /* called when adding a new module through @FT_Add_Module */
+ static FT_Error
+ bsdf_raster_new( FT_Memory memory,
+ BSDF_PRaster* araster )
+ {
+ FT_Error error;
+ BSDF_PRaster raster = NULL;
+
+
+ if ( !FT_NEW( raster ) )
+ raster->memory = memory;
+
+ *araster = raster;
+
+ return error;
+ }
+
+
+ /* unused */
+ static void
+ bsdf_raster_reset( FT_Raster raster,
+ unsigned char* pool_base,
+ unsigned long pool_size )
+ {
+ FT_UNUSED( raster );
+ FT_UNUSED( pool_base );
+ FT_UNUSED( pool_size );
+ }
+
+
+ /* unused */
+ static FT_Error
+ bsdf_raster_set_mode( FT_Raster raster,
+ unsigned long mode,
+ void* args )
+ {
+ FT_UNUSED( raster );
+ FT_UNUSED( mode );
+ FT_UNUSED( args );
+
+ return FT_Err_Ok;
+ }
+
+
+ /* called while rendering through @FT_Render_Glyph */
+ static FT_Error
+ bsdf_raster_render( FT_Raster raster,
+ const FT_Raster_Params* params )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = NULL;
+
+ const FT_Bitmap* source = NULL;
+ const FT_Bitmap* target = NULL;
+
+ BSDF_TRaster* bsdf_raster = (BSDF_TRaster*)raster;
+ BSDF_Worker worker;
+
+ const SDF_Raster_Params* sdf_params = (const SDF_Raster_Params*)params;
+
+
+ worker.distance_map = NULL;
+
+ /* check for valid parameters */
+ if ( !raster || !params )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* check whether the flag is set */
+ if ( sdf_params->root.flags != FT_RASTER_FLAG_SDF )
+ {
+ error = FT_THROW( Raster_Corrupted );
+ goto Exit;
+ }
+
+ source = (const FT_Bitmap*)sdf_params->root.source;
+ target = (const FT_Bitmap*)sdf_params->root.target;
+
+ /* check source and target bitmap */
+ if ( !source || !target )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ memory = bsdf_raster->memory;
+ if ( !memory )
+ {
+ FT_TRACE0(( "bsdf_raster_render: Raster not set up properly,\n" ));
+ FT_TRACE0(( " unable to find memory handle.\n" ));
+
+ error = FT_THROW( Invalid_Handle );
+ goto Exit;
+ }
+
+ /* check whether spread is set properly */
+ if ( sdf_params->spread > MAX_SPREAD ||
+ sdf_params->spread < MIN_SPREAD )
+ {
+ FT_TRACE0(( "bsdf_raster_render:"
+ " The `spread' field of `SDF_Raster_Params'\n" ));
+ FT_TRACE0(( " "
+ " is invalid; the value of this field must be\n" ));
+ FT_TRACE0(( " "
+ " within [%d, %d].\n",
+ MIN_SPREAD, MAX_SPREAD ));
+ FT_TRACE0(( " "
+ " Also, you must pass `SDF_Raster_Params'\n" ));
+ FT_TRACE0(( " "
+ " instead of the default `FT_Raster_Params'\n" ));
+ FT_TRACE0(( " "
+ " while calling this function and set the fields\n" ));
+ FT_TRACE0(( " "
+ " accordingly.\n" ));
+
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* set up the worker */
+
+ /* allocate the distance map */
+ if ( FT_QALLOC_MULT( worker.distance_map, target->rows,
+ target->width * sizeof ( *worker.distance_map ) ) )
+ goto Exit;
+
+ worker.width = (int)target->width;
+ worker.rows = (int)target->rows;
+ worker.params = *sdf_params;
+
+ FT_CALL( bsdf_init_distance_map( source, &worker ) );
+ FT_CALL( bsdf_approximate_edge( &worker ) );
+ FT_CALL( edt8( &worker ) );
+ FT_CALL( finalize_sdf( &worker, target ) );
+
+ FT_TRACE0(( "bsdf_raster_render: Total memory used = %ld\n",
+ worker.width * worker.rows *
+ (long)sizeof ( *worker.distance_map ) ));
+
+ Exit:
+ if ( worker.distance_map )
+ FT_FREE( worker.distance_map );
+
+ return error;
+ }
+
+
+ /* called while deleting `FT_Library` only if the module is added */
+ static void
+ bsdf_raster_done( FT_Raster raster )
+ {
+ FT_Memory memory = (FT_Memory)((BSDF_TRaster*)raster)->memory;
+
+
+ FT_FREE( raster );
+ }
+
+
+ FT_DEFINE_RASTER_FUNCS(
+ ft_bitmap_sdf_raster,
+
+ FT_GLYPH_FORMAT_BITMAP,
+
+ (FT_Raster_New_Func) bsdf_raster_new, /* raster_new */
+ (FT_Raster_Reset_Func) bsdf_raster_reset, /* raster_reset */
+ (FT_Raster_Set_Mode_Func)bsdf_raster_set_mode, /* raster_set_mode */
+ (FT_Raster_Render_Func) bsdf_raster_render, /* raster_render */
+ (FT_Raster_Done_Func) bsdf_raster_done /* raster_done */
+ )
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdf.c b/thirdparty/freetype/src/sdf/ftsdf.c
new file mode 100644
index 0000000000..f69cf49b47
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdf.c
@@ -0,0 +1,3872 @@
+/****************************************************************************
+ *
+ * ftsdf.c
+ *
+ * Signed Distance Field support for outline fonts (body).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/ftdebug.h>
+#include <freetype/ftoutln.h>
+#include <freetype/fttrigon.h>
+#include <freetype/ftbitmap.h>
+#include "ftsdf.h"
+
+#include "ftsdferrs.h"
+
+
+ /**************************************************************************
+ *
+ * A brief technical overview of how the SDF rasterizer works
+ * ----------------------------------------------------------
+ *
+ * [Notes]:
+ * * SDF stands for Signed Distance Field everywhere.
+ *
+ * * This renderer generates SDF directly from outlines. There is
+ * another renderer called 'bsdf', which converts bitmaps to SDF; see
+ * file `ftbsdf.c` for more.
+ *
+ * * The basic idea of generating the SDF is taken from Viktor Chlumsky's
+ * research paper. The paper explains both single and multi-channel
+ * SDF, however, this implementation only generates single-channel SDF.
+ *
+ * Chlumsky, Viktor: Shape Decomposition for Multi-channel Distance
+ * Fields. Master's thesis. Czech Technical University in Prague,
+ * Faculty of InformationTechnology, 2015.
+ *
+ * For more information: https://github.com/Chlumsky/msdfgen
+ *
+ * ========================================================================
+ *
+ * Generating SDF from outlines is pretty straightforward.
+ *
+ * (1) We have a set of contours that make the outline of a shape/glyph.
+ * Each contour comprises of several edges, with three types of edges.
+ *
+ * * line segments
+ * * conic Bezier curves
+ * * cubic Bezier curves
+ *
+ * (2) Apart from the outlines we also have a two-dimensional grid, namely
+ * the bitmap that is used to represent the final SDF data.
+ *
+ * (3) In order to generate SDF, our task is to find shortest signed
+ * distance from each grid point to the outline. The 'signed
+ * distance' means that if the grid point is filled by any contour
+ * then its sign is positive, otherwise it is negative. The pseudo
+ * code is as follows.
+ *
+ * ```
+ * foreach grid_point (x, y):
+ * {
+ * int min_dist = INT_MAX;
+ *
+ * foreach contour in outline:
+ * {
+ * foreach edge in contour:
+ * {
+ * // get shortest distance from point (x, y) to the edge
+ * d = get_min_dist(x, y, edge);
+ *
+ * if (d < min_dist)
+ * min_dist = d;
+ * }
+ *
+ * bitmap[x, y] = min_dist;
+ * }
+ * }
+ * ```
+ *
+ * (4) After running this algorithm the bitmap contains information about
+ * the shortest distance from each point to the outline of the shape.
+ * Of course, while this is the most straightforward way of generating
+ * SDF, we use various optimizations in our implementation. See the
+ * `sdf_generate_*' functions in this file for all details.
+ *
+ * The optimization currently used by default is subdivision; see
+ * function `sdf_generate_subdivision` for more.
+ *
+ * Also, to see how we compute the shortest distance from a point to
+ * each type of edge, check out the `get_min_distance_*' functions.
+ *
+ */
+
+
+ /**************************************************************************
+ *
+ * The macro FT_COMPONENT is used in trace mode. It is an implicit
+ * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+ * messages during execution.
+ */
+#undef FT_COMPONENT
+#define FT_COMPONENT sdf
+
+
+ /**************************************************************************
+ *
+ * definitions
+ *
+ */
+
+ /*
+ * If set to 1, the rasterizer uses Newton-Raphson's method for finding
+ * the shortest distance from a point to a conic curve.
+ *
+ * If set to 0, an analytical method gets used instead, which computes the
+ * roots of a cubic polynomial to find the shortest distance. However,
+ * the analytical method can currently underflow; we thus use Newton's
+ * method by default.
+ */
+#ifndef USE_NEWTON_FOR_CONIC
+#define USE_NEWTON_FOR_CONIC 1
+#endif
+
+ /*
+ * The number of intervals a Bezier curve gets sampled and checked to find
+ * the shortest distance.
+ */
+#define MAX_NEWTON_DIVISIONS 4
+
+ /*
+ * The number of steps of Newton's iterations in each interval of the
+ * Bezier curve. Basically, we run Newton's approximation
+ *
+ * x -= Q(t) / Q'(t)
+ *
+ * for each division to get the shortest distance.
+ */
+#define MAX_NEWTON_STEPS 4
+
+ /*
+ * The epsilon distance (in 16.16 fractional units) used for corner
+ * resolving. If the difference of two distances is less than this value
+ * they will be checked for a corner if they are ambiguous.
+ */
+#define CORNER_CHECK_EPSILON 32
+
+#if 0
+ /*
+ * Coarse grid dimension. Will probably be removed in the future because
+ * coarse grid optimization is the slowest algorithm.
+ */
+#define CG_DIMEN 8
+#endif
+
+
+ /**************************************************************************
+ *
+ * macros
+ *
+ */
+
+#define MUL_26D6( a, b ) ( ( ( a ) * ( b ) ) / 64 )
+#define VEC_26D6_DOT( p, q ) ( MUL_26D6( p.x, q.x ) + \
+ MUL_26D6( p.y, q.y ) )
+
+
+ /**************************************************************************
+ *
+ * structures and enums
+ *
+ */
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_TRaster
+ *
+ * @Description:
+ * This struct is used in place of @FT_Raster and is stored within the
+ * internal FreeType renderer struct. While rasterizing it is passed to
+ * the @FT_Raster_RenderFunc function, which then can be used however we
+ * want.
+ *
+ * @Fields:
+ * memory ::
+ * Used internally to allocate intermediate memory while raterizing.
+ *
+ */
+ typedef struct SDF_TRaster_
+ {
+ FT_Memory memory;
+
+ } SDF_TRaster, *SDF_PRaster;
+
+
+ /**************************************************************************
+ *
+ * @Enum:
+ * SDF_Edge_Type
+ *
+ * @Description:
+ * Enumeration of all curve types present in fonts.
+ *
+ * @Fields:
+ * SDF_EDGE_UNDEFINED ::
+ * Undefined edge, simply used to initialize and detect errors.
+ *
+ * SDF_EDGE_LINE ::
+ * Line segment with start and end point.
+ *
+ * SDF_EDGE_CONIC ::
+ * A conic/quadratic Bezier curve with start, end, and one control
+ * point.
+ *
+ * SDF_EDGE_CUBIC ::
+ * A cubic Bezier curve with start, end, and two control points.
+ *
+ */
+ typedef enum SDF_Edge_Type_
+ {
+ SDF_EDGE_UNDEFINED = 0,
+ SDF_EDGE_LINE = 1,
+ SDF_EDGE_CONIC = 2,
+ SDF_EDGE_CUBIC = 3
+
+ } SDF_Edge_Type;
+
+
+ /**************************************************************************
+ *
+ * @Enum:
+ * SDF_Contour_Orientation
+ *
+ * @Description:
+ * Enumeration of all orientation values of a contour. We determine the
+ * orientation by calculating the area covered by a contour. Contrary
+ * to values returned by @FT_Outline_Get_Orientation,
+ * `SDF_Contour_Orientation` is independent of the fill rule, which can
+ * be different for different font formats.
+ *
+ * @Fields:
+ * SDF_ORIENTATION_NONE ::
+ * Undefined orientation, used for initialization and error detection.
+ *
+ * SDF_ORIENTATION_CW ::
+ * Clockwise orientation (positive area covered).
+ *
+ * SDF_ORIENTATION_CCW ::
+ * Counter-clockwise orientation (negative area covered).
+ *
+ * @Note:
+ * See @FT_Outline_Get_Orientation for more details.
+ *
+ */
+ typedef enum SDF_Contour_Orientation_
+ {
+ SDF_ORIENTATION_NONE = 0,
+ SDF_ORIENTATION_CW = 1,
+ SDF_ORIENTATION_CCW = 2
+
+ } SDF_Contour_Orientation;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_Edge
+ *
+ * @Description:
+ * Represent an edge of a contour.
+ *
+ * @Fields:
+ * start_pos ::
+ * Start position of an edge. Valid for all types of edges.
+ *
+ * end_pos ::
+ * Etart position of an edge. Valid for all types of edges.
+ *
+ * control_a ::
+ * A control point of the edge. Valid only for `SDF_EDGE_CONIC`
+ * and `SDF_EDGE_CUBIC`.
+ *
+ * control_b ::
+ * Another control point of the edge. Valid only for
+ * `SDF_EDGE_CONIC`.
+ *
+ * edge_type ::
+ * Type of the edge, see @SDF_Edge_Type for all possible edge types.
+ *
+ * next ::
+ * Used to create a singly linked list, which can be interpreted
+ * as a contour.
+ *
+ */
+ typedef struct SDF_Edge_
+ {
+ FT_26D6_Vec start_pos;
+ FT_26D6_Vec end_pos;
+ FT_26D6_Vec control_a;
+ FT_26D6_Vec control_b;
+
+ SDF_Edge_Type edge_type;
+
+ struct SDF_Edge_* next;
+
+ } SDF_Edge;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_Contour
+ *
+ * @Description:
+ * Represent a complete contour, which contains a list of edges.
+ *
+ * @Fields:
+ * last_pos ::
+ * Contains the value of `end_pos' of the last edge in the list of
+ * edges. Useful while decomposing the outline with
+ * @FT_Outline_Decompose.
+ *
+ * edges ::
+ * Linked list of all the edges that make the contour.
+ *
+ * next ::
+ * Used to create a singly linked list, which can be interpreted as a
+ * complete shape or @FT_Outline.
+ *
+ */
+ typedef struct SDF_Contour_
+ {
+ FT_26D6_Vec last_pos;
+ SDF_Edge* edges;
+
+ struct SDF_Contour_* next;
+
+ } SDF_Contour;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_Shape
+ *
+ * @Description:
+ * Represent a complete shape, which is the decomposition of
+ * @FT_Outline.
+ *
+ * @Fields:
+ * memory ::
+ * Used internally to allocate memory.
+ *
+ * contours ::
+ * Linked list of all the contours that make the shape.
+ *
+ */
+ typedef struct SDF_Shape_
+ {
+ FT_Memory memory;
+ SDF_Contour* contours;
+
+ } SDF_Shape;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_Signed_Distance
+ *
+ * @Description:
+ * Represent signed distance of a point, i.e., the distance of the edge
+ * nearest to the point.
+ *
+ * @Fields:
+ * distance ::
+ * Distance of the point from the nearest edge. Can be squared or
+ * absolute depending on the `USE_SQUARED_DISTANCES` macro defined in
+ * file `ftsdfcommon.h`.
+ *
+ * cross ::
+ * Cross product of the shortest distance vector (i.e., the vector
+ * from the point to the nearest edge) and the direction of the edge
+ * at the nearest point. This is used to resolve ambiguities of
+ * `sign`.
+ *
+ * sign ::
+ * A value used to indicate whether the distance vector is outside or
+ * inside the contour corresponding to the edge.
+ *
+ * @Note:
+ * `sign` may or may not be correct, therefore it must be checked
+ * properly in case there is an ambiguity.
+ *
+ */
+ typedef struct SDF_Signed_Distance_
+ {
+ FT_16D16 distance;
+ FT_16D16 cross;
+ FT_Char sign;
+
+ } SDF_Signed_Distance;
+
+
+ /**************************************************************************
+ *
+ * @Struct:
+ * SDF_Params
+ *
+ * @Description:
+ * Yet another internal parameters required by the rasterizer.
+ *
+ * @Fields:
+ * orientation ::
+ * This is not the @SDF_Contour_Orientation value but @FT_Orientation,
+ * which determines whether clockwise-oriented outlines are to be
+ * filled or counter-clockwise-oriented ones.
+ *
+ * flip_sign ::
+ * If set to true, flip the sign. By default the points filled by the
+ * outline are positive.
+ *
+ * flip_y ::
+ * If set to true the output bitmap is upside-down. Can be useful
+ * because OpenGL and DirectX use different coordinate systems for
+ * textures.
+ *
+ * overload_sign ::
+ * In the subdivision and bounding box optimization, the default
+ * outside sign is taken as -1. This parameter can be used to modify
+ * that behaviour. For example, while generating SDF for a single
+ * counter-clockwise contour, the outside sign should be 1.
+ *
+ */
+ typedef struct SDF_Params_
+ {
+ FT_Orientation orientation;
+ FT_Bool flip_sign;
+ FT_Bool flip_y;
+
+ FT_Int overload_sign;
+
+ } SDF_Params;
+
+
+ /**************************************************************************
+ *
+ * constants, initializer, and destructor
+ *
+ */
+
+ static
+ const FT_Vector zero_vector = { 0, 0 };
+
+ static
+ const SDF_Edge null_edge = { { 0, 0 }, { 0, 0 },
+ { 0, 0 }, { 0, 0 },
+ SDF_EDGE_UNDEFINED, NULL };
+
+ static
+ const SDF_Contour null_contour = { { 0, 0 }, NULL, NULL };
+
+ static
+ const SDF_Shape null_shape = { NULL, NULL };
+
+ static
+ const SDF_Signed_Distance max_sdf = { INT_MAX, 0, 0 };
+
+
+ /* Create a new @SDF_Edge on the heap and assigns the `edge` */
+ /* pointer to the newly allocated memory. */
+ static FT_Error
+ sdf_edge_new( FT_Memory memory,
+ SDF_Edge** edge )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Edge* ptr = NULL;
+
+
+ if ( !memory || !edge )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) )
+ {
+ *ptr = null_edge;
+ *edge = ptr;
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /* Free the allocated `edge` variable. */
+ static void
+ sdf_edge_done( FT_Memory memory,
+ SDF_Edge** edge )
+ {
+ if ( !memory || !edge || !*edge )
+ return;
+
+ FT_FREE( *edge );
+ }
+
+
+ /* Create a new @SDF_Contour on the heap and assign */
+ /* the `contour` pointer to the newly allocated memory. */
+ static FT_Error
+ sdf_contour_new( FT_Memory memory,
+ SDF_Contour** contour )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Contour* ptr = NULL;
+
+
+ if ( !memory || !contour )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) )
+ {
+ *ptr = null_contour;
+ *contour = ptr;
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /* Free the allocated `contour` variable. */
+ /* Also free the list of edges. */
+ static void
+ sdf_contour_done( FT_Memory memory,
+ SDF_Contour** contour )
+ {
+ SDF_Edge* edges;
+ SDF_Edge* temp;
+
+
+ if ( !memory || !contour || !*contour )
+ return;
+
+ edges = (*contour)->edges;
+
+ /* release all edges */
+ while ( edges )
+ {
+ temp = edges;
+ edges = edges->next;
+
+ sdf_edge_done( memory, &temp );
+ }
+
+ FT_FREE( *contour );
+ }
+
+
+ /* Create a new @SDF_Shape on the heap and assign */
+ /* the `shape` pointer to the newly allocated memory. */
+ static FT_Error
+ sdf_shape_new( FT_Memory memory,
+ SDF_Shape** shape )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Shape* ptr = NULL;
+
+
+ if ( !memory || !shape )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( !FT_QALLOC( ptr, sizeof ( *ptr ) ) )
+ {
+ *ptr = null_shape;
+ ptr->memory = memory;
+ *shape = ptr;
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /* Free the allocated `shape` variable. */
+ /* Also free the list of contours. */
+ static void
+ sdf_shape_done( SDF_Shape** shape )
+ {
+ FT_Memory memory;
+ SDF_Contour* contours;
+ SDF_Contour* temp;
+
+
+ if ( !shape || !*shape )
+ return;
+
+ memory = (*shape)->memory;
+ contours = (*shape)->contours;
+
+ if ( !memory )
+ return;
+
+ /* release all contours */
+ while ( contours )
+ {
+ temp = contours;
+ contours = contours->next;
+
+ sdf_contour_done( memory, &temp );
+ }
+
+ /* release the allocated shape struct */
+ FT_FREE( *shape );
+ }
+
+
+ /**************************************************************************
+ *
+ * shape decomposition functions
+ *
+ */
+
+ /* This function is called when starting a new contour at `to`, */
+ /* which gets added to the shape's list. */
+ static FT_Error
+ sdf_move_to( const FT_26D6_Vec* to,
+ void* user )
+ {
+ SDF_Shape* shape = ( SDF_Shape* )user;
+ SDF_Contour* contour = NULL;
+
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = shape->memory;
+
+
+ if ( !to || !user )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ FT_CALL( sdf_contour_new( memory, &contour ) );
+
+ contour->last_pos = *to;
+ contour->next = shape->contours;
+ shape->contours = contour;
+
+ Exit:
+ return error;
+ }
+
+
+ /* This function is called when there is a line in the */
+ /* contour. The line starts at the previous edge point and */
+ /* stops at `to`. */
+ static FT_Error
+ sdf_line_to( const FT_26D6_Vec* to,
+ void* user )
+ {
+ SDF_Shape* shape = ( SDF_Shape* )user;
+ SDF_Edge* edge = NULL;
+ SDF_Contour* contour = NULL;
+
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = shape->memory;
+
+
+ if ( !to || !user )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ contour = shape->contours;
+
+ if ( contour->last_pos.x == to->x &&
+ contour->last_pos.y == to->y )
+ goto Exit;
+
+ FT_CALL( sdf_edge_new( memory, &edge ) );
+
+ edge->edge_type = SDF_EDGE_LINE;
+ edge->start_pos = contour->last_pos;
+ edge->end_pos = *to;
+
+ edge->next = contour->edges;
+ contour->edges = edge;
+ contour->last_pos = *to;
+
+ Exit:
+ return error;
+ }
+
+
+ /* This function is called when there is a conic Bezier curve */
+ /* in the contour. The curve starts at the previous edge point */
+ /* and stops at `to`, with control point `control_1`. */
+ static FT_Error
+ sdf_conic_to( const FT_26D6_Vec* control_1,
+ const FT_26D6_Vec* to,
+ void* user )
+ {
+ SDF_Shape* shape = ( SDF_Shape* )user;
+ SDF_Edge* edge = NULL;
+ SDF_Contour* contour = NULL;
+
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = shape->memory;
+
+
+ if ( !control_1 || !to || !user )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ contour = shape->contours;
+
+ FT_CALL( sdf_edge_new( memory, &edge ) );
+
+ edge->edge_type = SDF_EDGE_CONIC;
+ edge->start_pos = contour->last_pos;
+ edge->control_a = *control_1;
+ edge->end_pos = *to;
+
+ edge->next = contour->edges;
+ contour->edges = edge;
+ contour->last_pos = *to;
+
+ Exit:
+ return error;
+ }
+
+
+ /* This function is called when there is a cubic Bezier curve */
+ /* in the contour. The curve starts at the previous edge point */
+ /* and stops at `to`, with two control points `control_1` and */
+ /* `control_2`. */
+ static FT_Error
+ sdf_cubic_to( const FT_26D6_Vec* control_1,
+ const FT_26D6_Vec* control_2,
+ const FT_26D6_Vec* to,
+ void* user )
+ {
+ SDF_Shape* shape = ( SDF_Shape* )user;
+ SDF_Edge* edge = NULL;
+ SDF_Contour* contour = NULL;
+
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = shape->memory;
+
+
+ if ( !control_2 || !control_1 || !to || !user )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ contour = shape->contours;
+
+ FT_CALL( sdf_edge_new( memory, &edge ) );
+
+ edge->edge_type = SDF_EDGE_CUBIC;
+ edge->start_pos = contour->last_pos;
+ edge->control_a = *control_1;
+ edge->control_b = *control_2;
+ edge->end_pos = *to;
+
+ edge->next = contour->edges;
+ contour->edges = edge;
+ contour->last_pos = *to;
+
+ Exit:
+ return error;
+ }
+
+
+ /* Construct the structure to hold all four outline */
+ /* decomposition functions. */
+ FT_DEFINE_OUTLINE_FUNCS(
+ sdf_decompose_funcs,
+
+ (FT_Outline_MoveTo_Func) sdf_move_to, /* move_to */
+ (FT_Outline_LineTo_Func) sdf_line_to, /* line_to */
+ (FT_Outline_ConicTo_Func)sdf_conic_to, /* conic_to */
+ (FT_Outline_CubicTo_Func)sdf_cubic_to, /* cubic_to */
+
+ 0, /* shift */
+ 0 /* delta */
+ )
+
+
+ /* Decompose `outline` and put it into the `shape` structure. */
+ static FT_Error
+ sdf_outline_decompose( FT_Outline* outline,
+ SDF_Shape* shape )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( !outline || !shape )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ error = FT_Outline_Decompose( outline,
+ &sdf_decompose_funcs,
+ (void*)shape );
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * utility functions
+ *
+ */
+
+ /* Return the control box of an edge. The control box is a rectangle */
+ /* in which all the control points can fit tightly. */
+ static FT_CBox
+ get_control_box( SDF_Edge edge )
+ {
+ FT_CBox cbox = { 0, 0, 0, 0 };
+ FT_Bool is_set = 0;
+
+
+ switch ( edge.edge_type )
+ {
+ case SDF_EDGE_CUBIC:
+ cbox.xMin = edge.control_b.x;
+ cbox.xMax = edge.control_b.x;
+ cbox.yMin = edge.control_b.y;
+ cbox.yMax = edge.control_b.y;
+
+ is_set = 1;
+ /* fall through */
+
+ case SDF_EDGE_CONIC:
+ if ( is_set )
+ {
+ cbox.xMin = edge.control_a.x < cbox.xMin
+ ? edge.control_a.x
+ : cbox.xMin;
+ cbox.xMax = edge.control_a.x > cbox.xMax
+ ? edge.control_a.x
+ : cbox.xMax;
+
+ cbox.yMin = edge.control_a.y < cbox.yMin
+ ? edge.control_a.y
+ : cbox.yMin;
+ cbox.yMax = edge.control_a.y > cbox.yMax
+ ? edge.control_a.y
+ : cbox.yMax;
+ }
+ else
+ {
+ cbox.xMin = edge.control_a.x;
+ cbox.xMax = edge.control_a.x;
+ cbox.yMin = edge.control_a.y;
+ cbox.yMax = edge.control_a.y;
+
+ is_set = 1;
+ }
+ /* fall through */
+
+ case SDF_EDGE_LINE:
+ if ( is_set )
+ {
+ cbox.xMin = edge.start_pos.x < cbox.xMin
+ ? edge.start_pos.x
+ : cbox.xMin;
+ cbox.xMax = edge.start_pos.x > cbox.xMax
+ ? edge.start_pos.x
+ : cbox.xMax;
+
+ cbox.yMin = edge.start_pos.y < cbox.yMin
+ ? edge.start_pos.y
+ : cbox.yMin;
+ cbox.yMax = edge.start_pos.y > cbox.yMax
+ ? edge.start_pos.y
+ : cbox.yMax;
+ }
+ else
+ {
+ cbox.xMin = edge.start_pos.x;
+ cbox.xMax = edge.start_pos.x;
+ cbox.yMin = edge.start_pos.y;
+ cbox.yMax = edge.start_pos.y;
+ }
+
+ cbox.xMin = edge.end_pos.x < cbox.xMin
+ ? edge.end_pos.x
+ : cbox.xMin;
+ cbox.xMax = edge.end_pos.x > cbox.xMax
+ ? edge.end_pos.x
+ : cbox.xMax;
+
+ cbox.yMin = edge.end_pos.y < cbox.yMin
+ ? edge.end_pos.y
+ : cbox.yMin;
+ cbox.yMax = edge.end_pos.y > cbox.yMax
+ ? edge.end_pos.y
+ : cbox.yMax;
+
+ break;
+
+ default:
+ break;
+ }
+
+ return cbox;
+ }
+
+
+ /* Return orientation of a single contour. */
+ /* Note that the orientation is independent of the fill rule! */
+ /* So, for TTF a clockwise-oriented contour has to be filled */
+ /* and the opposite for OTF fonts. */
+ static SDF_Contour_Orientation
+ get_contour_orientation ( SDF_Contour* contour )
+ {
+ SDF_Edge* head = NULL;
+ FT_26D6 area = 0;
+
+
+ /* return none if invalid parameters */
+ if ( !contour || !contour->edges )
+ return SDF_ORIENTATION_NONE;
+
+ head = contour->edges;
+
+ /* Calculate the area of the control box for all edges. */
+ while ( head )
+ {
+ switch ( head->edge_type )
+ {
+ case SDF_EDGE_LINE:
+ area += MUL_26D6( ( head->end_pos.x - head->start_pos.x ),
+ ( head->end_pos.y + head->start_pos.y ) );
+ break;
+
+ case SDF_EDGE_CONIC:
+ area += MUL_26D6( head->control_a.x - head->start_pos.x,
+ head->control_a.y + head->start_pos.y );
+ area += MUL_26D6( head->end_pos.x - head->control_a.x,
+ head->end_pos.y + head->control_a.y );
+ break;
+
+ case SDF_EDGE_CUBIC:
+ area += MUL_26D6( head->control_a.x - head->start_pos.x,
+ head->control_a.y + head->start_pos.y );
+ area += MUL_26D6( head->control_b.x - head->control_a.x,
+ head->control_b.y + head->control_a.y );
+ area += MUL_26D6( head->end_pos.x - head->control_b.x,
+ head->end_pos.y + head->control_b.y );
+ break;
+
+ default:
+ return SDF_ORIENTATION_NONE;
+ }
+
+ head = head->next;
+ }
+
+ /* Clockwise contours cover a positive area, and counter-clockwise */
+ /* contours cover a negative area. */
+ if ( area > 0 )
+ return SDF_ORIENTATION_CW;
+ else
+ return SDF_ORIENTATION_CCW;
+ }
+
+
+ /* This function is exactly the same as the one */
+ /* in the smooth renderer. It splits a conic */
+ /* into two conics exactly half way at t = 0.5. */
+ static void
+ split_conic( FT_26D6_Vec* base )
+ {
+ FT_26D6 a, b;
+
+
+ base[4].x = base[2].x;
+ a = base[0].x + base[1].x;
+ b = base[1].x + base[2].x;
+ base[3].x = b / 2;
+ base[2].x = ( a + b ) / 4;
+ base[1].x = a / 2;
+
+ base[4].y = base[2].y;
+ a = base[0].y + base[1].y;
+ b = base[1].y + base[2].y;
+ base[3].y = b / 2;
+ base[2].y = ( a + b ) / 4;
+ base[1].y = a / 2;
+ }
+
+
+ /* This function is exactly the same as the one */
+ /* in the smooth renderer. It splits a cubic */
+ /* into two cubics exactly half way at t = 0.5. */
+ static void
+ split_cubic( FT_26D6_Vec* base )
+ {
+ FT_26D6 a, b, c;
+
+
+ base[6].x = base[3].x;
+ a = base[0].x + base[1].x;
+ b = base[1].x + base[2].x;
+ c = base[2].x + base[3].x;
+ base[5].x = c / 2;
+ c += b;
+ base[4].x = c / 4;
+ base[1].x = a / 2;
+ a += b;
+ base[2].x = a / 4;
+ base[3].x = ( a + c ) / 8;
+
+ base[6].y = base[3].y;
+ a = base[0].y + base[1].y;
+ b = base[1].y + base[2].y;
+ c = base[2].y + base[3].y;
+ base[5].y = c / 2;
+ c += b;
+ base[4].y = c / 4;
+ base[1].y = a / 2;
+ a += b;
+ base[2].y = a / 4;
+ base[3].y = ( a + c ) / 8;
+ }
+
+
+ /* Split a conic Bezier curve into a number of lines */
+ /* and add them to `out'. */
+ /* */
+ /* This function uses recursion; we thus need */
+ /* parameter `max_splits' for stopping. */
+ static FT_Error
+ split_sdf_conic( FT_Memory memory,
+ FT_26D6_Vec* control_points,
+ FT_Int max_splits,
+ SDF_Edge** out )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_26D6_Vec cpos[5];
+ SDF_Edge* left,* right;
+
+
+ if ( !memory || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* split conic outline */
+ cpos[0] = control_points[0];
+ cpos[1] = control_points[1];
+ cpos[2] = control_points[2];
+
+ split_conic( cpos );
+
+ /* If max number of splits is done */
+ /* then stop and add the lines to */
+ /* the list. */
+ if ( max_splits <= 2 )
+ goto Append;
+
+ /* Otherwise keep splitting. */
+ FT_CALL( split_sdf_conic( memory, &cpos[0], max_splits / 2, out ) );
+ FT_CALL( split_sdf_conic( memory, &cpos[2], max_splits / 2, out ) );
+
+ /* [NOTE]: This is not an efficient way of */
+ /* splitting the curve. Check the deviation */
+ /* instead and stop if the deviation is less */
+ /* than a pixel. */
+
+ goto Exit;
+
+ Append:
+ /* Do allocation and add the lines to the list. */
+
+ FT_CALL( sdf_edge_new( memory, &left ) );
+ FT_CALL( sdf_edge_new( memory, &right ) );
+
+ left->start_pos = cpos[0];
+ left->end_pos = cpos[2];
+ left->edge_type = SDF_EDGE_LINE;
+
+ right->start_pos = cpos[2];
+ right->end_pos = cpos[4];
+ right->edge_type = SDF_EDGE_LINE;
+
+ left->next = right;
+ right->next = (*out);
+ *out = left;
+
+ Exit:
+ return error;
+ }
+
+
+ /* Split a cubic Bezier curve into a number of lines */
+ /* and add them to `out`. */
+ /* */
+ /* This function uses recursion; we thus need */
+ /* parameter `max_splits' for stopping. */
+ static FT_Error
+ split_sdf_cubic( FT_Memory memory,
+ FT_26D6_Vec* control_points,
+ FT_Int max_splits,
+ SDF_Edge** out )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_26D6_Vec cpos[7];
+ SDF_Edge* left,* right;
+
+
+ if ( !memory || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* split the conic */
+ cpos[0] = control_points[0];
+ cpos[1] = control_points[1];
+ cpos[2] = control_points[2];
+ cpos[3] = control_points[3];
+
+ split_cubic( cpos );
+
+ /* If max number of splits is done */
+ /* then stop and add the lines to */
+ /* the list. */
+ if ( max_splits <= 2 )
+ goto Append;
+
+ /* Otherwise keep splitting. */
+ FT_CALL( split_sdf_cubic( memory, &cpos[0], max_splits / 2, out ) );
+ FT_CALL( split_sdf_cubic( memory, &cpos[3], max_splits / 2, out ) );
+
+ /* [NOTE]: This is not an efficient way of */
+ /* splitting the curve. Check the deviation */
+ /* instead and stop if the deviation is less */
+ /* than a pixel. */
+
+ goto Exit;
+
+ Append:
+ /* Do allocation and add the lines to the list. */
+
+ FT_CALL( sdf_edge_new( memory, &left) );
+ FT_CALL( sdf_edge_new( memory, &right) );
+
+ left->start_pos = cpos[0];
+ left->end_pos = cpos[3];
+ left->edge_type = SDF_EDGE_LINE;
+
+ right->start_pos = cpos[3];
+ right->end_pos = cpos[6];
+ right->edge_type = SDF_EDGE_LINE;
+
+ left->next = right;
+ right->next = (*out);
+ *out = left;
+
+ Exit:
+ return error;
+ }
+
+
+ /* Subdivide an entire shape into line segments */
+ /* such that it doesn't look visually different */
+ /* from the original curve. */
+ static FT_Error
+ split_sdf_shape( SDF_Shape* shape )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory;
+
+ SDF_Contour* contours;
+ SDF_Contour* new_contours = NULL;
+
+
+ if ( !shape || !shape->memory )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ contours = shape->contours;
+ memory = shape->memory;
+
+ /* for each contour */
+ while ( contours )
+ {
+ SDF_Edge* edges = contours->edges;
+ SDF_Edge* new_edges = NULL;
+
+ SDF_Contour* tempc;
+
+
+ /* for each edge */
+ while ( edges )
+ {
+ SDF_Edge* edge = edges;
+ SDF_Edge* temp;
+
+ switch ( edge->edge_type )
+ {
+ case SDF_EDGE_LINE:
+ /* Just create a duplicate edge in case */
+ /* it is a line. We can use the same edge. */
+ FT_CALL( sdf_edge_new( memory, &temp ) );
+
+ ft_memcpy( temp, edge, sizeof ( *edge ) );
+
+ temp->next = new_edges;
+ new_edges = temp;
+ break;
+
+ case SDF_EDGE_CONIC:
+ /* Subdivide the curve and add it to the list. */
+ {
+ FT_26D6_Vec ctrls[3];
+
+
+ ctrls[0] = edge->start_pos;
+ ctrls[1] = edge->control_a;
+ ctrls[2] = edge->end_pos;
+
+ error = split_sdf_conic( memory, ctrls, 32, &new_edges );
+ }
+ break;
+
+ case SDF_EDGE_CUBIC:
+ /* Subdivide the curve and add it to the list. */
+ {
+ FT_26D6_Vec ctrls[4];
+
+
+ ctrls[0] = edge->start_pos;
+ ctrls[1] = edge->control_a;
+ ctrls[2] = edge->control_b;
+ ctrls[3] = edge->end_pos;
+
+ error = split_sdf_cubic( memory, ctrls, 32, &new_edges );
+ }
+ break;
+
+ default:
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ edges = edges->next;
+ }
+
+ /* add to the contours list */
+ FT_CALL( sdf_contour_new( memory, &tempc ) );
+
+ tempc->next = new_contours;
+ tempc->edges = new_edges;
+ new_contours = tempc;
+ new_edges = NULL;
+
+ /* deallocate the contour */
+ tempc = contours;
+ contours = contours->next;
+
+ sdf_contour_done( memory, &tempc );
+ }
+
+ shape->contours = new_contours;
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * for debugging
+ *
+ */
+
+#ifdef FT_DEBUG_LEVEL_TRACE
+
+ static void
+ sdf_shape_dump( SDF_Shape* shape )
+ {
+ FT_UInt num_contours = 0;
+
+ FT_UInt total_edges = 0;
+ FT_UInt total_lines = 0;
+ FT_UInt total_conic = 0;
+ FT_UInt total_cubic = 0;
+
+ SDF_Contour* contour_list;
+
+
+ if ( !shape )
+ {
+ FT_TRACE5(( "sdf_shape_dump: null shape\n" ));
+ return;
+ }
+
+ contour_list = shape->contours;
+
+ FT_TRACE5(( "sdf_shape_dump (values are in 26.6 format):\n" ));
+
+ while ( contour_list )
+ {
+ FT_UInt num_edges = 0;
+ SDF_Edge* edge_list;
+ SDF_Contour* contour = contour_list;
+
+
+ FT_TRACE5(( " Contour %d\n", num_contours ));
+
+ edge_list = contour->edges;
+
+ while ( edge_list )
+ {
+ SDF_Edge* edge = edge_list;
+
+
+ FT_TRACE5(( " %3d: ", num_edges ));
+
+ switch ( edge->edge_type )
+ {
+ case SDF_EDGE_LINE:
+ FT_TRACE5(( "Line: (%ld, %ld) -- (%ld, %ld)\n",
+ edge->start_pos.x, edge->start_pos.y,
+ edge->end_pos.x, edge->end_pos.y ));
+ total_lines++;
+ break;
+
+ case SDF_EDGE_CONIC:
+ FT_TRACE5(( "Conic: (%ld, %ld) .. (%ld, %ld) .. (%ld, %ld)\n",
+ edge->start_pos.x, edge->start_pos.y,
+ edge->control_a.x, edge->control_a.y,
+ edge->end_pos.x, edge->end_pos.y ));
+ total_conic++;
+ break;
+
+ case SDF_EDGE_CUBIC:
+ FT_TRACE5(( "Cubic: (%ld, %ld) .. (%ld, %ld)"
+ " .. (%ld, %ld) .. (%ld %ld)\n",
+ edge->start_pos.x, edge->start_pos.y,
+ edge->control_a.x, edge->control_a.y,
+ edge->control_b.x, edge->control_b.y,
+ edge->end_pos.x, edge->end_pos.y ));
+ total_cubic++;
+ break;
+
+ default:
+ break;
+ }
+
+ num_edges++;
+ total_edges++;
+ edge_list = edge_list->next;
+ }
+
+ num_contours++;
+ contour_list = contour_list->next;
+ }
+
+ FT_TRACE5(( "\n" ));
+ FT_TRACE5(( " total number of contours = %d\n", num_contours ));
+ FT_TRACE5(( " total number of edges = %d\n", total_edges ));
+ FT_TRACE5(( " |__lines = %d\n", total_lines ));
+ FT_TRACE5(( " |__conic = %d\n", total_conic ));
+ FT_TRACE5(( " |__cubic = %d\n", total_cubic ));
+ }
+
+#endif /* FT_DEBUG_LEVEL_TRACE */
+
+
+ /**************************************************************************
+ *
+ * math functions
+ *
+ */
+
+#if !USE_NEWTON_FOR_CONIC
+
+ /* [NOTE]: All the functions below down until rasterizer */
+ /* can be avoided if we decide to subdivide the */
+ /* curve into lines. */
+
+ /* This function uses Newton's iteration to find */
+ /* the cube root of a fixed-point integer. */
+ static FT_16D16
+ cube_root( FT_16D16 val )
+ {
+ /* [IMPORTANT]: This function is not good as it may */
+ /* not break, so use a lookup table instead. Or we */
+ /* can use an algorithm similar to `square_root`. */
+
+ FT_Int v, g, c;
+
+
+ if ( val == 0 ||
+ val == -FT_INT_16D16( 1 ) ||
+ val == FT_INT_16D16( 1 ) )
+ return val;
+
+ v = val < 0 ? -val : val;
+ g = square_root( v );
+ c = 0;
+
+ while ( 1 )
+ {
+ c = FT_MulFix( FT_MulFix( g, g ), g ) - v;
+ c = FT_DivFix( c, 3 * FT_MulFix( g, g ) );
+
+ g -= c;
+
+ if ( ( c < 0 ? -c : c ) < 30 )
+ break;
+ }
+
+ return val < 0 ? -g : g;
+ }
+
+
+ /* Calculate the perpendicular by using '1 - base^2'. */
+ /* Then use arctan to compute the angle. */
+ static FT_16D16
+ arc_cos( FT_16D16 val )
+ {
+ FT_16D16 p;
+ FT_16D16 b = val;
+ FT_16D16 one = FT_INT_16D16( 1 );
+
+
+ if ( b > one )
+ b = one;
+ if ( b < -one )
+ b = -one;
+
+ p = one - FT_MulFix( b, b );
+ p = square_root( p );
+
+ return FT_Atan2( b, p );
+ }
+
+
+ /* Compute roots of a quadratic polynomial, assign them to `out`, */
+ /* and return number of real roots. */
+ /* */
+ /* The procedure can be found at */
+ /* */
+ /* https://mathworld.wolfram.com/QuadraticFormula.html */
+ static FT_UShort
+ solve_quadratic_equation( FT_26D6 a,
+ FT_26D6 b,
+ FT_26D6 c,
+ FT_16D16 out[2] )
+ {
+ FT_16D16 discriminant = 0;
+
+
+ a = FT_26D6_16D16( a );
+ b = FT_26D6_16D16( b );
+ c = FT_26D6_16D16( c );
+
+ if ( a == 0 )
+ {
+ if ( b == 0 )
+ return 0;
+ else
+ {
+ out[0] = FT_DivFix( -c, b );
+
+ return 1;
+ }
+ }
+
+ discriminant = FT_MulFix( b, b ) - 4 * FT_MulFix( a, c );
+
+ if ( discriminant < 0 )
+ return 0;
+ else if ( discriminant == 0 )
+ {
+ out[0] = FT_DivFix( -b, 2 * a );
+
+ return 1;
+ }
+ else
+ {
+ discriminant = square_root( discriminant );
+
+ out[0] = FT_DivFix( -b + discriminant, 2 * a );
+ out[1] = FT_DivFix( -b - discriminant, 2 * a );
+
+ return 2;
+ }
+ }
+
+
+ /* Compute roots of a cubic polynomial, assign them to `out`, */
+ /* and return number of real roots. */
+ /* */
+ /* The procedure can be found at */
+ /* */
+ /* https://mathworld.wolfram.com/CubicFormula.html */
+ static FT_UShort
+ solve_cubic_equation( FT_26D6 a,
+ FT_26D6 b,
+ FT_26D6 c,
+ FT_26D6 d,
+ FT_16D16 out[3] )
+ {
+ FT_16D16 q = 0; /* intermediate */
+ FT_16D16 r = 0; /* intermediate */
+
+ FT_16D16 a2 = b; /* x^2 coefficients */
+ FT_16D16 a1 = c; /* x coefficients */
+ FT_16D16 a0 = d; /* constant */
+
+ FT_16D16 q3 = 0;
+ FT_16D16 r2 = 0;
+ FT_16D16 a23 = 0;
+ FT_16D16 a22 = 0;
+ FT_16D16 a1x2 = 0;
+
+
+ /* cutoff value for `a` to be a cubic, otherwise solve quadratic */
+ if ( a == 0 || FT_ABS( a ) < 16 )
+ return solve_quadratic_equation( b, c, d, out );
+
+ if ( d == 0 )
+ {
+ out[0] = 0;
+
+ return solve_quadratic_equation( a, b, c, out + 1 ) + 1;
+ }
+
+ /* normalize the coefficients; this also makes them 16.16 */
+ a2 = FT_DivFix( a2, a );
+ a1 = FT_DivFix( a1, a );
+ a0 = FT_DivFix( a0, a );
+
+ /* compute intermediates */
+ a1x2 = FT_MulFix( a1, a2 );
+ a22 = FT_MulFix( a2, a2 );
+ a23 = FT_MulFix( a22, a2 );
+
+ q = ( 3 * a1 - a22 ) / 9;
+ r = ( 9 * a1x2 - 27 * a0 - 2 * a23 ) / 54;
+
+ /* [BUG]: `q3` and `r2` still cause underflow. */
+
+ q3 = FT_MulFix( q, q );
+ q3 = FT_MulFix( q3, q );
+
+ r2 = FT_MulFix( r, r );
+
+ if ( q3 < 0 && r2 < -q3 )
+ {
+ FT_16D16 t = 0;
+
+
+ q3 = square_root( -q3 );
+ t = FT_DivFix( r, q3 );
+
+ if ( t > ( 1 << 16 ) )
+ t = ( 1 << 16 );
+ if ( t < -( 1 << 16 ) )
+ t = -( 1 << 16 );
+
+ t = arc_cos( t );
+ a2 /= 3;
+ q = 2 * square_root( -q );
+
+ out[0] = FT_MulFix( q, FT_Cos( t / 3 ) ) - a2;
+ out[1] = FT_MulFix( q, FT_Cos( ( t + FT_ANGLE_PI * 2 ) / 3 ) ) - a2;
+ out[2] = FT_MulFix( q, FT_Cos( ( t + FT_ANGLE_PI * 4 ) / 3 ) ) - a2;
+
+ return 3;
+ }
+
+ else if ( r2 == -q3 )
+ {
+ FT_16D16 s = 0;
+
+
+ s = cube_root( r );
+ a2 /= -3;
+
+ out[0] = a2 + ( 2 * s );
+ out[1] = a2 - s;
+
+ return 2;
+ }
+
+ else
+ {
+ FT_16D16 s = 0;
+ FT_16D16 t = 0;
+ FT_16D16 dis = 0;
+
+
+ if ( q3 == 0 )
+ dis = FT_ABS( r );
+ else
+ dis = square_root( q3 + r2 );
+
+ s = cube_root( r + dis );
+ t = cube_root( r - dis );
+ a2 /= -3;
+ out[0] = ( a2 + ( s + t ) );
+
+ return 1;
+ }
+ }
+
+#endif /* !USE_NEWTON_FOR_CONIC */
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /** **/
+ /** RASTERIZER **/
+ /** **/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /**************************************************************************
+ *
+ * @Function:
+ * resolve_corner
+ *
+ * @Description:
+ * At some places on the grid two edges can give opposite directions;
+ * this happens when the closest point is on one of the endpoint. In
+ * that case we need to check the proper sign.
+ *
+ * This can be visualized by an example:
+ *
+ * ```
+ * x
+ *
+ * o
+ * ^ \
+ * / \
+ * / \
+ * (a) / \ (b)
+ * / \
+ * / \
+ * / v
+ * ```
+ *
+ * Suppose `x` is the point whose shortest distance from an arbitrary
+ * contour we want to find out. It is clear that `o` is the nearest
+ * point on the contour. Now to determine the sign we do a cross
+ * product of the shortest distance vector and the edge direction, i.e.,
+ *
+ * ```
+ * => sign = cross(x - o, direction(a))
+ * ```
+ *
+ * Using the right hand thumb rule we can see that the sign will be
+ * positive.
+ *
+ * If we use `b', however, we have
+ *
+ * ```
+ * => sign = cross(x - o, direction(b))
+ * ```
+ *
+ * In this case the sign will be negative. To determine the correct
+ * sign we thus divide the plane in two halves and check which plane the
+ * point lies in.
+ *
+ * ```
+ * |
+ * x |
+ * |
+ * o
+ * ^|\
+ * / | \
+ * / | \
+ * (a) / | \ (b)
+ * / | \
+ * / \
+ * / v
+ * ```
+ *
+ * We can see that `x` lies in the plane of `a`, so we take the sign
+ * determined by `a`. This test can be easily done by calculating the
+ * orthogonality and taking the greater one.
+ *
+ * The orthogonality is simply the sinus of the two vectors (i.e.,
+ * x - o) and the corresponding direction. We efficiently pre-compute
+ * the orthogonality with the corresponding `get_min_distance_*`
+ * functions.
+ *
+ * @Input:
+ * sdf1 ::
+ * First signed distance (can be any of `a` or `b`).
+ *
+ * sdf1 ::
+ * Second signed distance (can be any of `a` or `b`).
+ *
+ * @Return:
+ * The correct signed distance, which is computed by using the above
+ * algorithm.
+ *
+ * @Note:
+ * The function does not care about the actual distance, it simply
+ * returns the signed distance which has a larger cross product. As a
+ * consequence, this function should not be used if the two distances
+ * are fairly apart. In that case simply use the signed distance with
+ * a shorter absolute distance.
+ *
+ */
+ static SDF_Signed_Distance
+ resolve_corner( SDF_Signed_Distance sdf1,
+ SDF_Signed_Distance sdf2 )
+ {
+ return FT_ABS( sdf1.cross ) > FT_ABS( sdf2.cross ) ? sdf1 : sdf2;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * get_min_distance_line
+ *
+ * @Description:
+ * Find the shortest distance from the `line` segment to a given `point`
+ * and assign it to `out`. Use it for line segments only.
+ *
+ * @Input:
+ * line ::
+ * The line segment to which the shortest distance is to be computed.
+ *
+ * point ::
+ * Point from which the shortest distance is to be computed.
+ *
+ * @Output:
+ * out ::
+ * Signed distance from `point` to `line`.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The `line' parameter must have an edge type of `SDF_EDGE_LINE`.
+ *
+ */
+ static FT_Error
+ get_min_distance_line( SDF_Edge* line,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ /*
+ * In order to calculate the shortest distance from a point to
+ * a line segment, we do the following. Let's assume that
+ *
+ * ```
+ * a = start point of the line segment
+ * b = end point of the line segment
+ * p = point from which shortest distance is to be calculated
+ * ```
+ *
+ * (1) Write the parametric equation of the line.
+ *
+ * ```
+ * point_on_line = a + (b - a) * t (t is the factor)
+ * ```
+ *
+ * (2) Find the projection of point `p` on the line. The projection
+ * will be perpendicular to the line, which allows us to get the
+ * solution by making the dot product zero.
+ *
+ * ```
+ * (point_on_line - a) . (p - point_on_line) = 0
+ *
+ * (point_on_line)
+ * (a) x-------o----------------x (b)
+ * |_|
+ * |
+ * |
+ * (p)
+ * ```
+ *
+ * (3) Simplification of the above equation yields the factor of
+ * `point_on_line`:
+ *
+ * ```
+ * t = ((p - a) . (b - a)) / |b - a|^2
+ * ```
+ *
+ * (4) We clamp factor `t` between [0.0f, 1.0f] because `point_on_line`
+ * can be outside of the line segment:
+ *
+ * ```
+ * (point_on_line)
+ * (a) x------------------------x (b) -----o---
+ * |_|
+ * |
+ * |
+ * (p)
+ * ```
+ *
+ * (5) Finally, the distance we are interested in is
+ *
+ * ```
+ * |point_on_line - p|
+ * ```
+ */
+
+ FT_Error error = FT_Err_Ok;
+
+ FT_Vector a; /* start position */
+ FT_Vector b; /* end position */
+ FT_Vector p; /* current point */
+
+ FT_26D6_Vec line_segment; /* `b` - `a` */
+ FT_26D6_Vec p_sub_a; /* `p` - `a` */
+
+ FT_26D6 sq_line_length; /* squared length of `line_segment` */
+ FT_16D16 factor; /* factor of the nearest point */
+ FT_26D6 cross; /* used to determine sign */
+
+ FT_16D16_Vec nearest_point; /* `point_on_line` */
+ FT_16D16_Vec nearest_vector; /* `p` - `nearest_point` */
+
+
+ if ( !line || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( line->edge_type != SDF_EDGE_LINE )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ a = line->start_pos;
+ b = line->end_pos;
+ p = point;
+
+ line_segment.x = b.x - a.x;
+ line_segment.y = b.y - a.y;
+
+ p_sub_a.x = p.x - a.x;
+ p_sub_a.y = p.y - a.y;
+
+ sq_line_length = ( line_segment.x * line_segment.x ) / 64 +
+ ( line_segment.y * line_segment.y ) / 64;
+
+ /* currently factor is 26.6 */
+ factor = ( p_sub_a.x * line_segment.x ) / 64 +
+ ( p_sub_a.y * line_segment.y ) / 64;
+
+ /* now factor is 16.16 */
+ factor = FT_DivFix( factor, sq_line_length );
+
+ /* clamp the factor between 0.0 and 1.0 in fixed point */
+ if ( factor > FT_INT_16D16( 1 ) )
+ factor = FT_INT_16D16( 1 );
+ if ( factor < 0 )
+ factor = 0;
+
+ nearest_point.x = FT_MulFix( FT_26D6_16D16( line_segment.x ),
+ factor );
+ nearest_point.y = FT_MulFix( FT_26D6_16D16( line_segment.y ),
+ factor );
+
+ nearest_point.x = FT_26D6_16D16( a.x ) + nearest_point.x;
+ nearest_point.y = FT_26D6_16D16( a.y ) + nearest_point.y;
+
+ nearest_vector.x = nearest_point.x - FT_26D6_16D16( p.x );
+ nearest_vector.y = nearest_point.y - FT_26D6_16D16( p.y );
+
+ cross = FT_MulFix( nearest_vector.x, line_segment.y ) -
+ FT_MulFix( nearest_vector.y, line_segment.x );
+
+ /* assign the output */
+ out->sign = cross < 0 ? 1 : -1;
+ out->distance = VECTOR_LENGTH_16D16( nearest_vector );
+
+ /* Instead of finding `cross` for checking corner we */
+ /* directly set it here. This is more efficient */
+ /* because if the distance is perpendicular we can */
+ /* directly set it to 1. */
+ if ( factor != 0 && factor != FT_INT_16D16( 1 ) )
+ out->cross = FT_INT_16D16( 1 );
+ else
+ {
+ /* [OPTIMIZATION]: Pre-compute this direction. */
+ /* If not perpendicular then compute `cross`. */
+ FT_Vector_NormLen( &line_segment );
+ FT_Vector_NormLen( &nearest_vector );
+
+ out->cross = FT_MulFix( line_segment.x, nearest_vector.y ) -
+ FT_MulFix( line_segment.y, nearest_vector.x );
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * get_min_distance_conic
+ *
+ * @Description:
+ * Find the shortest distance from the `conic` Bezier curve to a given
+ * `point` and assign it to `out`. Use it for conic/quadratic curves
+ * only.
+ *
+ * @Input:
+ * conic ::
+ * The conic Bezier curve to which the shortest distance is to be
+ * computed.
+ *
+ * point ::
+ * Point from which the shortest distance is to be computed.
+ *
+ * @Output:
+ * out ::
+ * Signed distance from `point` to `conic`.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The `conic` parameter must have an edge type of `SDF_EDGE_CONIC`.
+ *
+ */
+
+#if !USE_NEWTON_FOR_CONIC
+
+ /*
+ * The function uses an analytical method to find the shortest distance
+ * which is faster than the Newton-Raphson method, but has underflows at
+ * the moment. Use Newton's method if you can see artifacts in the SDF.
+ */
+ static FT_Error
+ get_min_distance_conic( SDF_Edge* conic,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ /*
+ * The procedure to find the shortest distance from a point to a
+ * quadratic Bezier curve is similar to the line segment algorithm. The
+ * shortest distance is perpendicular to the Bezier curve; the only
+ * difference from line is that there can be more than one
+ * perpendicular, and we also have to check the endpoints, because the
+ * perpendicular may not be the shortest.
+ *
+ * Let's assume that
+ * ```
+ * p0 = first endpoint
+ * p1 = control point
+ * p2 = second endpoint
+ * p = point from which shortest distance is to be calculated
+ * ```
+ *
+ * (1) The equation of a quadratic Bezier curve can be written as
+ *
+ * ```
+ * B(t) = (1 - t)^2 * p0 + 2(1 - t)t * p1 + t^2 * p2
+ * ```
+ *
+ * with `t` a factor in the range [0.0f, 1.0f]. This equation can
+ * be rewritten as
+ *
+ * ```
+ * B(t) = t^2 * (p0 - 2p1 + p2) + 2t * (p1 - p0) + p0
+ * ```
+ *
+ * With
+ *
+ * ```
+ * A = p0 - 2p1 + p2
+ * B = p1 - p0
+ * ```
+ *
+ * we have
+ *
+ * ```
+ * B(t) = t^2 * A + 2t * B + p0
+ * ```
+ *
+ * (2) The derivative of the last equation above is
+ *
+ * ```
+ * B'(t) = 2 *(tA + B)
+ * ```
+ *
+ * (3) To find the shortest distance from `p` to `B(t)` we find the
+ * point on the curve at which the shortest distance vector (i.e.,
+ * `B(t) - p`) and the direction (i.e., `B'(t)`) make 90 degrees.
+ * In other words, we make the dot product zero.
+ *
+ * ```
+ * (B(t) - p) . (B'(t)) = 0
+ * (t^2 * A + 2t * B + p0 - p) . (2 * (tA + B)) = 0
+ * ```
+ *
+ * After simplifying we get a cubic equation
+ *
+ * ```
+ * at^3 + bt^2 + ct + d = 0
+ * ```
+ *
+ * with
+ *
+ * ```
+ * a = A.A
+ * b = 3A.B
+ * c = 2B.B + A.p0 - A.p
+ * d = p0.B - p.B
+ * ```
+ *
+ * (4) Now the roots of the equation can be computed using 'Cardano's
+ * Cubic formula'; we clamp the roots in the range [0.0f, 1.0f].
+ *
+ * [note]: `B` and `B(t)` are different in the above equations.
+ */
+
+ FT_Error error = FT_Err_Ok;
+
+ FT_26D6_Vec aA, bB; /* A, B in the above comment */
+ FT_26D6_Vec nearest_point; /* point on curve nearest to `point` */
+ FT_26D6_Vec direction; /* direction of curve at `nearest_point` */
+
+ FT_26D6_Vec p0, p1, p2; /* control points of a conic curve */
+ FT_26D6_Vec p; /* `point` to which shortest distance */
+
+ FT_26D6 a, b, c, d; /* cubic coefficients */
+
+ FT_16D16 roots[3] = { 0, 0, 0 }; /* real roots of the cubic eq. */
+ FT_16D16 min_factor; /* factor at `nearest_point` */
+ FT_16D16 cross; /* to determine the sign */
+ FT_16D16 min = FT_INT_MAX; /* shortest squared distance */
+
+ FT_UShort num_roots; /* number of real roots of cubic */
+ FT_UShort i;
+
+
+ if ( !conic || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( conic->edge_type != SDF_EDGE_CONIC )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ p0 = conic->start_pos;
+ p1 = conic->control_a;
+ p2 = conic->end_pos;
+ p = point;
+
+ /* compute substitution coefficients */
+ aA.x = p0.x - 2 * p1.x + p2.x;
+ aA.y = p0.y - 2 * p1.y + p2.y;
+
+ bB.x = p1.x - p0.x;
+ bB.y = p1.y - p0.y;
+
+ /* compute cubic coefficients */
+ a = VEC_26D6_DOT( aA, aA );
+
+ b = 3 * VEC_26D6_DOT( aA, bB );
+
+ c = 2 * VEC_26D6_DOT( bB, bB ) +
+ VEC_26D6_DOT( aA, p0 ) -
+ VEC_26D6_DOT( aA, p );
+
+ d = VEC_26D6_DOT( p0, bB ) -
+ VEC_26D6_DOT( p, bB );
+
+ /* find the roots */
+ num_roots = solve_cubic_equation( a, b, c, d, roots );
+
+ if ( num_roots == 0 )
+ {
+ roots[0] = 0;
+ roots[1] = FT_INT_16D16( 1 );
+ num_roots = 2;
+ }
+
+ /* [OPTIMIZATION]: Check the roots, clamp them and discard */
+ /* duplicate roots. */
+
+ /* convert these values to 16.16 for further computation */
+ aA.x = FT_26D6_16D16( aA.x );
+ aA.y = FT_26D6_16D16( aA.y );
+
+ bB.x = FT_26D6_16D16( bB.x );
+ bB.y = FT_26D6_16D16( bB.y );
+
+ p0.x = FT_26D6_16D16( p0.x );
+ p0.y = FT_26D6_16D16( p0.y );
+
+ p.x = FT_26D6_16D16( p.x );
+ p.y = FT_26D6_16D16( p.y );
+
+ for ( i = 0; i < num_roots; i++ )
+ {
+ FT_16D16 t = roots[i];
+ FT_16D16 t2 = 0;
+ FT_16D16 dist = 0;
+
+ FT_16D16_Vec curve_point;
+ FT_16D16_Vec dist_vector;
+
+ /*
+ * Ideally we should discard the roots which are outside the range
+ * [0.0, 1.0] and check the endpoints of the Bezier curve, but Behdad
+ * Esfahbod proved the following lemma.
+ *
+ * Lemma:
+ *
+ * (1) If the closest point on the curve [0, 1] is to the endpoint at
+ * `t` = 1 and the cubic has no real roots at `t` = 1 then the
+ * cubic must have a real root at some `t` > 1.
+ *
+ * (2) Similarly, if the closest point on the curve [0, 1] is to the
+ * endpoint at `t` = 0 and the cubic has no real roots at `t` = 0
+ * then the cubic must have a real root at some `t` < 0.
+ *
+ * Now because of this lemma we only need to clamp the roots and that
+ * will take care of the endpoints.
+ *
+ * For more details see
+ *
+ * https://lists.nongnu.org/archive/html/freetype-devel/2020-06/msg00147.html
+ */
+
+ if ( t < 0 )
+ t = 0;
+ if ( t > FT_INT_16D16( 1 ) )
+ t = FT_INT_16D16( 1 );
+
+ t2 = FT_MulFix( t, t );
+
+ /* B(t) = t^2 * A + 2t * B + p0 - p */
+ curve_point.x = FT_MulFix( aA.x, t2 ) +
+ 2 * FT_MulFix( bB.x, t ) + p0.x;
+ curve_point.y = FT_MulFix( aA.y, t2 ) +
+ 2 * FT_MulFix( bB.y, t ) + p0.y;
+
+ /* `curve_point` - `p` */
+ dist_vector.x = curve_point.x - p.x;
+ dist_vector.y = curve_point.y - p.y;
+
+ dist = VECTOR_LENGTH_16D16( dist_vector );
+
+ if ( dist < min )
+ {
+ min = dist;
+ nearest_point = curve_point;
+ min_factor = t;
+ }
+ }
+
+ /* B'(t) = 2 * (tA + B) */
+ direction.x = 2 * FT_MulFix( aA.x, min_factor ) + 2 * bB.x;
+ direction.y = 2 * FT_MulFix( aA.y, min_factor ) + 2 * bB.y;
+
+ /* determine the sign */
+ cross = FT_MulFix( nearest_point.x - p.x, direction.y ) -
+ FT_MulFix( nearest_point.y - p.y, direction.x );
+
+ /* assign the values */
+ out->distance = min;
+ out->sign = cross < 0 ? 1 : -1;
+
+ if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) )
+ out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */
+ else
+ {
+ /* convert to nearest vector */
+ nearest_point.x -= FT_26D6_16D16( p.x );
+ nearest_point.y -= FT_26D6_16D16( p.y );
+
+ /* compute `cross` if not perpendicular */
+ FT_Vector_NormLen( &direction );
+ FT_Vector_NormLen( &nearest_point );
+
+ out->cross = FT_MulFix( direction.x, nearest_point.y ) -
+ FT_MulFix( direction.y, nearest_point.x );
+ }
+
+ Exit:
+ return error;
+ }
+
+#else /* USE_NEWTON_FOR_CONIC */
+
+ /*
+ * The function uses Newton's approximation to find the shortest distance,
+ * which is a bit slower than the analytical method but doesn't cause
+ * underflow.
+ */
+ static FT_Error
+ get_min_distance_conic( SDF_Edge* conic,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ /*
+ * This method uses Newton-Raphson's approximation to find the shortest
+ * distance from a point to a conic curve. It does not involve solving
+ * any cubic equation, that is why there is no risk of underflow.
+ *
+ * Let's assume that
+ *
+ * ```
+ * p0 = first endpoint
+ * p1 = control point
+ * p3 = second endpoint
+ * p = point from which shortest distance is to be calculated
+ * ```
+ *
+ * (1) The equation of a quadratic Bezier curve can be written as
+ *
+ * ```
+ * B(t) = (1 - t)^2 * p0 + 2(1 - t)t * p1 + t^2 * p2
+ * ```
+ *
+ * with `t` the factor in the range [0.0f, 1.0f]. The above
+ * equation can be rewritten as
+ *
+ * ```
+ * B(t) = t^2 * (p0 - 2p1 + p2) + 2t * (p1 - p0) + p0
+ * ```
+ *
+ * With
+ *
+ * ```
+ * A = p0 - 2p1 + p2
+ * B = 2 * (p1 - p0)
+ * ```
+ *
+ * we have
+ *
+ * ```
+ * B(t) = t^2 * A + t * B + p0
+ * ```
+ *
+ * (2) The derivative of the above equation is
+ *
+ * ```
+ * B'(t) = 2t * A + B
+ * ```
+ *
+ * (3) The second derivative of the above equation is
+ *
+ * ```
+ * B''(t) = 2A
+ * ```
+ *
+ * (4) The equation `P(t)` of the distance from point `p` to the curve
+ * can be written as
+ *
+ * ```
+ * P(t) = t^2 * A + t^2 * B + p0 - p
+ * ```
+ *
+ * With
+ *
+ * ```
+ * C = p0 - p
+ * ```
+ *
+ * we have
+ *
+ * ```
+ * P(t) = t^2 * A + t * B + C
+ * ```
+ *
+ * (5) Finally, the equation of the angle between `B(t)` and `P(t)` can
+ * be written as
+ *
+ * ```
+ * Q(t) = P(t) . B'(t)
+ * ```
+ *
+ * (6) Our task is to find a value of `t` such that the above equation
+ * `Q(t)` becomes zero, this is, the point-to-curve vector makes
+ * 90~degrees with the curve. We solve this with the Newton-Raphson
+ * method.
+ *
+ * (7) We first assume an arbitary value of factor `t`, which we then
+ * improve.
+ *
+ * ```
+ * t := Q(t) / Q'(t)
+ * ```
+ *
+ * Putting the value of `Q(t)` from the above equation gives
+ *
+ * ```
+ * t := P(t) . B'(t) / derivative(P(t) . B'(t))
+ * t := P(t) . B'(t) /
+ * (P'(t) . B'(t) + P(t) . B''(t))
+ * ```
+ *
+ * Note that `P'(t)` is the same as `B'(t)` because the constant is
+ * gone due to the derivative.
+ *
+ * (8) Finally we get the equation to improve the factor as
+ *
+ * ```
+ * t := P(t) . B'(t) /
+ * (B'(t) . B'(t) + P(t) . B''(t))
+ * ```
+ *
+ * [note]: `B` and `B(t)` are different in the above equations.
+ */
+
+ FT_Error error = FT_Err_Ok;
+
+ FT_26D6_Vec aA, bB, cC; /* A, B, C in the above comment */
+ FT_26D6_Vec nearest_point; /* point on curve nearest to `point` */
+ FT_26D6_Vec direction; /* direction of curve at `nearest_point` */
+
+ FT_26D6_Vec p0, p1, p2; /* control points of a conic curve */
+ FT_26D6_Vec p; /* `point` to which shortest distance */
+
+ FT_16D16 min_factor = 0; /* factor at `nearest_point' */
+ FT_16D16 cross; /* to determine the sign */
+ FT_16D16 min = FT_INT_MAX; /* shortest squared distance */
+
+ FT_UShort iterations;
+ FT_UShort steps;
+
+
+ if ( !conic || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( conic->edge_type != SDF_EDGE_CONIC )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ p0 = conic->start_pos;
+ p1 = conic->control_a;
+ p2 = conic->end_pos;
+ p = point;
+
+ /* compute substitution coefficients */
+ aA.x = p0.x - 2 * p1.x + p2.x;
+ aA.y = p0.y - 2 * p1.y + p2.y;
+
+ bB.x = 2 * ( p1.x - p0.x );
+ bB.y = 2 * ( p1.y - p0.y );
+
+ cC.x = p0.x;
+ cC.y = p0.y;
+
+ /* do Newton's iterations */
+ for ( iterations = 0; iterations <= MAX_NEWTON_DIVISIONS; iterations++ )
+ {
+ FT_16D16 factor = FT_INT_16D16( iterations ) / MAX_NEWTON_DIVISIONS;
+ FT_16D16 factor2;
+ FT_16D16 length;
+
+ FT_16D16_Vec curve_point; /* point on the curve */
+ FT_16D16_Vec dist_vector; /* `curve_point` - `p` */
+
+ FT_26D6_Vec d1; /* first derivative */
+ FT_26D6_Vec d2; /* second derivative */
+
+ FT_16D16 temp1;
+ FT_16D16 temp2;
+
+
+ for ( steps = 0; steps < MAX_NEWTON_STEPS; steps++ )
+ {
+ factor2 = FT_MulFix( factor, factor );
+
+ /* B(t) = t^2 * A + t * B + p0 */
+ curve_point.x = FT_MulFix( aA.x, factor2 ) +
+ FT_MulFix( bB.x, factor ) + cC.x;
+ curve_point.y = FT_MulFix( aA.y, factor2 ) +
+ FT_MulFix( bB.y, factor ) + cC.y;
+
+ /* convert to 16.16 */
+ curve_point.x = FT_26D6_16D16( curve_point.x );
+ curve_point.y = FT_26D6_16D16( curve_point.y );
+
+ /* P(t) in the comment */
+ dist_vector.x = curve_point.x - FT_26D6_16D16( p.x );
+ dist_vector.y = curve_point.y - FT_26D6_16D16( p.y );
+
+ length = VECTOR_LENGTH_16D16( dist_vector );
+
+ if ( length < min )
+ {
+ min = length;
+ min_factor = factor;
+ nearest_point = curve_point;
+ }
+
+ /* This is Newton's approximation. */
+ /* */
+ /* t := P(t) . B'(t) / */
+ /* (B'(t) . B'(t) + P(t) . B''(t)) */
+
+ /* B'(t) = 2tA + B */
+ d1.x = FT_MulFix( aA.x, 2 * factor ) + bB.x;
+ d1.y = FT_MulFix( aA.y, 2 * factor ) + bB.y;
+
+ /* B''(t) = 2A */
+ d2.x = 2 * aA.x;
+ d2.y = 2 * aA.y;
+
+ dist_vector.x /= 1024;
+ dist_vector.y /= 1024;
+
+ /* temp1 = P(t) . B'(t) */
+ temp1 = VEC_26D6_DOT( dist_vector, d1 );
+
+ /* temp2 = B'(t) . B'(t) + P(t) . B''(t) */
+ temp2 = VEC_26D6_DOT( d1, d1 ) +
+ VEC_26D6_DOT( dist_vector, d2 );
+
+ factor -= FT_DivFix( temp1, temp2 );
+
+ if ( factor < 0 || factor > FT_INT_16D16( 1 ) )
+ break;
+ }
+ }
+
+ /* B'(t) = 2t * A + B */
+ direction.x = 2 * FT_MulFix( aA.x, min_factor ) + bB.x;
+ direction.y = 2 * FT_MulFix( aA.y, min_factor ) + bB.y;
+
+ /* determine the sign */
+ cross = FT_MulFix( nearest_point.x - FT_26D6_16D16( p.x ),
+ direction.y ) -
+ FT_MulFix( nearest_point.y - FT_26D6_16D16( p.y ),
+ direction.x );
+
+ /* assign the values */
+ out->distance = min;
+ out->sign = cross < 0 ? 1 : -1;
+
+ if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) )
+ out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */
+ else
+ {
+ /* convert to nearest vector */
+ nearest_point.x -= FT_26D6_16D16( p.x );
+ nearest_point.y -= FT_26D6_16D16( p.y );
+
+ /* compute `cross` if not perpendicular */
+ FT_Vector_NormLen( &direction );
+ FT_Vector_NormLen( &nearest_point );
+
+ out->cross = FT_MulFix( direction.x, nearest_point.y ) -
+ FT_MulFix( direction.y, nearest_point.x );
+ }
+
+ Exit:
+ return error;
+ }
+
+
+#endif /* USE_NEWTON_FOR_CONIC */
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * get_min_distance_cubic
+ *
+ * @Description:
+ * Find the shortest distance from the `cubic` Bezier curve to a given
+ * `point` and assigns it to `out`. Use it for cubic curves only.
+ *
+ * @Input:
+ * cubic ::
+ * The cubic Bezier curve to which the shortest distance is to be
+ * computed.
+ *
+ * point ::
+ * Point from which the shortest distance is to be computed.
+ *
+ * @Output:
+ * out ::
+ * Signed distance from `point` to `cubic`.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The function uses Newton's approximation to find the shortest
+ * distance. Another way would be to divide the cubic into conic or
+ * subdivide the curve into lines, but that is not implemented.
+ *
+ * The `cubic` parameter must have an edge type of `SDF_EDGE_CUBIC`.
+ *
+ */
+ static FT_Error
+ get_min_distance_cubic( SDF_Edge* cubic,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ /*
+ * The procedure to find the shortest distance from a point to a cubic
+ * Bezier curve is similar to quadratic curve algorithm. The only
+ * difference is that while calculating factor `t`, instead of a cubic
+ * polynomial equation we have to find the roots of a 5th degree
+ * polynomial equation. Solving this would require a significant amount
+ * of time, and still the results may not be accurate. We are thus
+ * going to directly approximate the value of `t` using the Newton-Raphson
+ * method.
+ *
+ * Let's assume that
+ *
+ * ```
+ * p0 = first endpoint
+ * p1 = first control point
+ * p2 = second control point
+ * p3 = second endpoint
+ * p = point from which shortest distance is to be calculated
+ * ```
+ *
+ * (1) The equation of a cubic Bezier curve can be written as
+ *
+ * ```
+ * B(t) = (1 - t)^3 * p0 + 3(1 - t)^2 t * p1 +
+ * 3(1 - t)t^2 * p2 + t^3 * p3
+ * ```
+ *
+ * The equation can be expanded and written as
+ *
+ * ```
+ * B(t) = t^3 * (-p0 + 3p1 - 3p2 + p3) +
+ * 3t^2 * (p0 - 2p1 + p2) + 3t * (-p0 + p1) + p0
+ * ```
+ *
+ * With
+ *
+ * ```
+ * A = -p0 + 3p1 - 3p2 + p3
+ * B = 3(p0 - 2p1 + p2)
+ * C = 3(-p0 + p1)
+ * ```
+ *
+ * we have
+ *
+ * ```
+ * B(t) = t^3 * A + t^2 * B + t * C + p0
+ * ```
+ *
+ * (2) The derivative of the above equation is
+ *
+ * ```
+ * B'(t) = 3t^2 * A + 2t * B + C
+ * ```
+ *
+ * (3) The second derivative of the above equation is
+ *
+ * ```
+ * B''(t) = 6t * A + 2B
+ * ```
+ *
+ * (4) The equation `P(t)` of the distance from point `p` to the curve
+ * can be written as
+ *
+ * ```
+ * P(t) = t^3 * A + t^2 * B + t * C + p0 - p
+ * ```
+ *
+ * With
+ *
+ * ```
+ * D = p0 - p
+ * ```
+ *
+ * we have
+ *
+ * ```
+ * P(t) = t^3 * A + t^2 * B + t * C + D
+ * ```
+ *
+ * (5) Finally the equation of the angle between `B(t)` and `P(t)` can
+ * be written as
+ *
+ * ```
+ * Q(t) = P(t) . B'(t)
+ * ```
+ *
+ * (6) Our task is to find a value of `t` such that the above equation
+ * `Q(t)` becomes zero, this is, the point-to-curve vector makes
+ * 90~degree with curve. We solve this with the Newton-Raphson
+ * method.
+ *
+ * (7) We first assume an arbitary value of factor `t`, which we then
+ * improve.
+ *
+ * ```
+ * t := Q(t) / Q'(t)
+ * ```
+ *
+ * Putting the value of `Q(t)` from the above equation gives
+ *
+ * ```
+ * t := P(t) . B'(t) / derivative(P(t) . B'(t))
+ * t := P(t) . B'(t) /
+ * (P'(t) . B'(t) + P(t) . B''(t))
+ * ```
+ *
+ * Note that `P'(t)` is the same as `B'(t)` because the constant is
+ * gone due to the derivative.
+ *
+ * (8) Finally we get the equation to improve the factor as
+ *
+ * ```
+ * t := P(t) . B'(t) /
+ * (B'(t) . B'( t ) + P(t) . B''(t))
+ * ```
+ *
+ * [note]: `B` and `B(t)` are different in the above equations.
+ */
+
+ FT_Error error = FT_Err_Ok;
+
+ FT_26D6_Vec aA, bB, cC, dD; /* A, B, C in the above comment */
+ FT_16D16_Vec nearest_point; /* point on curve nearest to `point` */
+ FT_16D16_Vec direction; /* direction of curve at `nearest_point` */
+
+ FT_26D6_Vec p0, p1, p2, p3; /* control points of a cubic curve */
+ FT_26D6_Vec p; /* `point` to which shortest distance */
+
+ FT_16D16 min_factor = 0; /* factor at shortest distance */
+ FT_16D16 min_factor_sq = 0; /* factor at shortest distance */
+ FT_16D16 cross; /* to determine the sign */
+ FT_16D16 min = FT_INT_MAX; /* shortest distance */
+
+ FT_UShort iterations;
+ FT_UShort steps;
+
+
+ if ( !cubic || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( cubic->edge_type != SDF_EDGE_CUBIC )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ p0 = cubic->start_pos;
+ p1 = cubic->control_a;
+ p2 = cubic->control_b;
+ p3 = cubic->end_pos;
+ p = point;
+
+ /* compute substitution coefficients */
+ aA.x = -p0.x + 3 * ( p1.x - p2.x ) + p3.x;
+ aA.y = -p0.y + 3 * ( p1.y - p2.y ) + p3.y;
+
+ bB.x = 3 * ( p0.x - 2 * p1.x + p2.x );
+ bB.y = 3 * ( p0.y - 2 * p1.y + p2.y );
+
+ cC.x = 3 * ( p1.x - p0.x );
+ cC.y = 3 * ( p1.y - p0.y );
+
+ dD.x = p0.x;
+ dD.y = p0.y;
+
+ for ( iterations = 0; iterations <= MAX_NEWTON_DIVISIONS; iterations++ )
+ {
+ FT_16D16 factor = FT_INT_16D16( iterations ) / MAX_NEWTON_DIVISIONS;
+
+ FT_16D16 factor2; /* factor^2 */
+ FT_16D16 factor3; /* factor^3 */
+ FT_16D16 length;
+
+ FT_16D16_Vec curve_point; /* point on the curve */
+ FT_16D16_Vec dist_vector; /* `curve_point' - `p' */
+
+ FT_26D6_Vec d1; /* first derivative */
+ FT_26D6_Vec d2; /* second derivative */
+
+ FT_16D16 temp1;
+ FT_16D16 temp2;
+
+
+ for ( steps = 0; steps < MAX_NEWTON_STEPS; steps++ )
+ {
+ factor2 = FT_MulFix( factor, factor );
+ factor3 = FT_MulFix( factor2, factor );
+
+ /* B(t) = t^3 * A + t^2 * B + t * C + D */
+ curve_point.x = FT_MulFix( aA.x, factor3 ) +
+ FT_MulFix( bB.x, factor2 ) +
+ FT_MulFix( cC.x, factor ) + dD.x;
+ curve_point.y = FT_MulFix( aA.y, factor3 ) +
+ FT_MulFix( bB.y, factor2 ) +
+ FT_MulFix( cC.y, factor ) + dD.y;
+
+ /* convert to 16.16 */
+ curve_point.x = FT_26D6_16D16( curve_point.x );
+ curve_point.y = FT_26D6_16D16( curve_point.y );
+
+ /* P(t) in the comment */
+ dist_vector.x = curve_point.x - FT_26D6_16D16( p.x );
+ dist_vector.y = curve_point.y - FT_26D6_16D16( p.y );
+
+ length = VECTOR_LENGTH_16D16( dist_vector );
+
+ if ( length < min )
+ {
+ min = length;
+ min_factor = factor;
+ min_factor_sq = factor2;
+ nearest_point = curve_point;
+ }
+
+ /* This the Newton's approximation. */
+ /* */
+ /* t := P(t) . B'(t) / */
+ /* (B'(t) . B'(t) + P(t) . B''(t)) */
+
+ /* B'(t) = 3t^2 * A + 2t * B + C */
+ d1.x = FT_MulFix( aA.x, 3 * factor2 ) +
+ FT_MulFix( bB.x, 2 * factor ) + cC.x;
+ d1.y = FT_MulFix( aA.y, 3 * factor2 ) +
+ FT_MulFix( bB.y, 2 * factor ) + cC.y;
+
+ /* B''(t) = 6t * A + 2B */
+ d2.x = FT_MulFix( aA.x, 6 * factor ) + 2 * bB.x;
+ d2.y = FT_MulFix( aA.y, 6 * factor ) + 2 * bB.y;
+
+ dist_vector.x /= 1024;
+ dist_vector.y /= 1024;
+
+ /* temp1 = P(t) . B'(t) */
+ temp1 = VEC_26D6_DOT( dist_vector, d1 );
+
+ /* temp2 = B'(t) . B'(t) + P(t) . B''(t) */
+ temp2 = VEC_26D6_DOT( d1, d1 ) +
+ VEC_26D6_DOT( dist_vector, d2 );
+
+ factor -= FT_DivFix( temp1, temp2 );
+
+ if ( factor < 0 || factor > FT_INT_16D16( 1 ) )
+ break;
+ }
+ }
+
+ /* B'(t) = 3t^2 * A + 2t * B + C */
+ direction.x = FT_MulFix( aA.x, 3 * min_factor_sq ) +
+ FT_MulFix( bB.x, 2 * min_factor ) + cC.x;
+ direction.y = FT_MulFix( aA.y, 3 * min_factor_sq ) +
+ FT_MulFix( bB.y, 2 * min_factor ) + cC.y;
+
+ /* determine the sign */
+ cross = FT_MulFix( nearest_point.x - FT_26D6_16D16( p.x ),
+ direction.y ) -
+ FT_MulFix( nearest_point.y - FT_26D6_16D16( p.y ),
+ direction.x );
+
+ /* assign the values */
+ out->distance = min;
+ out->sign = cross < 0 ? 1 : -1;
+
+ if ( min_factor != 0 && min_factor != FT_INT_16D16( 1 ) )
+ out->cross = FT_INT_16D16( 1 ); /* the two are perpendicular */
+ else
+ {
+ /* convert to nearest vector */
+ nearest_point.x -= FT_26D6_16D16( p.x );
+ nearest_point.y -= FT_26D6_16D16( p.y );
+
+ /* compute `cross` if not perpendicular */
+ FT_Vector_NormLen( &direction );
+ FT_Vector_NormLen( &nearest_point );
+
+ out->cross = FT_MulFix( direction.x, nearest_point.y ) -
+ FT_MulFix( direction.y, nearest_point.x );
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_edge_get_min_distance
+ *
+ * @Description:
+ * Find shortest distance from `point` to any type of `edge`. It checks
+ * the edge type and then calls the relevant `get_min_distance_*`
+ * function.
+ *
+ * @Input:
+ * edge ::
+ * An edge to which the shortest distance is to be computed.
+ *
+ * point ::
+ * Point from which the shortest distance is to be computed.
+ *
+ * @Output:
+ * out ::
+ * Signed distance from `point` to `edge`.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ sdf_edge_get_min_distance( SDF_Edge* edge,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( !edge || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ /* edge-specific distance calculation */
+ switch ( edge->edge_type )
+ {
+ case SDF_EDGE_LINE:
+ get_min_distance_line( edge, point, out );
+ break;
+
+ case SDF_EDGE_CONIC:
+ get_min_distance_conic( edge, point, out );
+ break;
+
+ case SDF_EDGE_CUBIC:
+ get_min_distance_cubic( edge, point, out );
+ break;
+
+ default:
+ error = FT_THROW( Invalid_Argument );
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /* `sdf_generate' is not used at the moment */
+#if 0
+
+ #error "DO NOT USE THIS!"
+ #error "The function still outputs 16-bit data, which might cause memory"
+ #error "corruption. If required I will add this later."
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_contour_get_min_distance
+ *
+ * @Description:
+ * Iterate over all edges that make up the contour, find the shortest
+ * distance from a point to this contour, and assigns result to `out`.
+ *
+ * @Input:
+ * contour ::
+ * A contour to which the shortest distance is to be computed.
+ *
+ * point ::
+ * Point from which the shortest distance is to be computed.
+ *
+ * @Output:
+ * out ::
+ * Signed distance from the `point' to the `contour'.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The function does not return a signed distance for each edge which
+ * makes up the contour, it simply returns the shortest of all the
+ * edges.
+ *
+ */
+ static FT_Error
+ sdf_contour_get_min_distance( SDF_Contour* contour,
+ FT_26D6_Vec point,
+ SDF_Signed_Distance* out )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Signed_Distance min_dist = max_sdf;
+ SDF_Edge* edge_list;
+
+
+ if ( !contour || !out )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ edge_list = contour->edges;
+
+ /* iterate over all the edges manually */
+ while ( edge_list )
+ {
+ SDF_Signed_Distance current_dist = max_sdf;
+ FT_16D16 diff;
+
+
+ FT_CALL( sdf_edge_get_min_distance( edge_list,
+ point,
+ &current_dist ) );
+
+ if ( current_dist.distance >= 0 )
+ {
+ diff = current_dist.distance - min_dist.distance;
+
+
+ if ( FT_ABS(diff ) < CORNER_CHECK_EPSILON )
+ min_dist = resolve_corner( min_dist, current_dist );
+ else if ( diff < 0 )
+ min_dist = current_dist;
+ }
+ else
+ FT_TRACE0(( "sdf_contour_get_min_distance: Overflow.\n" ));
+
+ edge_list = edge_list->next;
+ }
+
+ *out = min_dist;
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_generate
+ *
+ * @Description:
+ * This is the main function that is responsible for generating signed
+ * distance fields. The function does not align or compute the size of
+ * `bitmap`; therefore the calling application must set up `bitmap`
+ * properly and transform the `shape' appropriately in advance.
+ *
+ * Currently we check all pixels against all contours and all edges.
+ *
+ * @Input:
+ * internal_params ::
+ * Internal parameters and properties required by the rasterizer. See
+ * @SDF_Params for more.
+ *
+ * shape ::
+ * A complete shape which is used to generate SDF.
+ *
+ * spread ::
+ * Maximum distances to be allowed in the output bitmap.
+ *
+ * @Output:
+ * bitmap ::
+ * The output bitmap which will contain the SDF information.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ sdf_generate( const SDF_Params internal_params,
+ const SDF_Shape* shape,
+ FT_UInt spread,
+ const FT_Bitmap* bitmap )
+ {
+ FT_Error error = FT_Err_Ok;
+
+ FT_UInt width = 0;
+ FT_UInt rows = 0;
+ FT_UInt x = 0; /* used to loop in x direction, i.e., width */
+ FT_UInt y = 0; /* used to loop in y direction, i.e., rows */
+ FT_UInt sp_sq = 0; /* `spread` [* `spread`] as a 16.16 fixed value */
+
+ FT_Short* buffer;
+
+
+ if ( !shape || !bitmap )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( spread < MIN_SPREAD || spread > MAX_SPREAD )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ width = bitmap->width;
+ rows = bitmap->rows;
+ buffer = (FT_Short*)bitmap->buffer;
+
+ if ( USE_SQUARED_DISTANCES )
+ sp_sq = FT_INT_16D16( spread * spread );
+ else
+ sp_sq = FT_INT_16D16( spread );
+
+ if ( width == 0 || rows == 0 )
+ {
+ FT_TRACE0(( "sdf_generate:"
+ " Cannot render glyph with width/height == 0\n" ));
+ FT_TRACE0(( " "
+ " (width, height provided [%d, %d])\n",
+ width, rows ));
+
+ error = FT_THROW( Cannot_Render_Glyph );
+ goto Exit;
+ }
+
+ /* loop over all rows */
+ for ( y = 0; y < rows; y++ )
+ {
+ /* loop over all pixels of a row */
+ for ( x = 0; x < width; x++ )
+ {
+ /* `grid_point` is the current pixel position; */
+ /* our task is to find the shortest distance */
+ /* from this point to the entire shape. */
+ FT_26D6_Vec grid_point = zero_vector;
+ SDF_Signed_Distance min_dist = max_sdf;
+ SDF_Contour* contour_list;
+
+ FT_UInt index;
+ FT_Short value;
+
+
+ grid_point.x = FT_INT_26D6( x );
+ grid_point.y = FT_INT_26D6( y );
+
+ /* This `grid_point' is at the corner, but we */
+ /* use the center of the pixel. */
+ grid_point.x += FT_INT_26D6( 1 ) / 2;
+ grid_point.y += FT_INT_26D6( 1 ) / 2;
+
+ contour_list = shape->contours;
+
+ /* iterate over all contours manually */
+ while ( contour_list )
+ {
+ SDF_Signed_Distance current_dist = max_sdf;
+
+
+ FT_CALL( sdf_contour_get_min_distance( contour_list,
+ grid_point,
+ &current_dist ) );
+
+ if ( current_dist.distance < min_dist.distance )
+ min_dist = current_dist;
+
+ contour_list = contour_list->next;
+ }
+
+ /* [OPTIMIZATION]: if (min_dist > sp_sq) then simply clamp */
+ /* the value to spread to avoid square_root */
+
+ /* clamp the values to spread */
+ if ( min_dist.distance > sp_sq )
+ min_dist.distance = sp_sq;
+
+ /* square_root the values and fit in a 6.10 fixed point */
+ if ( USE_SQUARED_DISTANCES )
+ min_dist.distance = square_root( min_dist.distance );
+
+ if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT )
+ min_dist.sign = -min_dist.sign;
+ if ( internal_params.flip_sign )
+ min_dist.sign = -min_dist.sign;
+
+ min_dist.distance /= 64; /* convert from 16.16 to 22.10 */
+
+ value = min_dist.distance & 0x0000FFFF; /* truncate to 6.10 */
+ value *= min_dist.sign;
+
+ if ( internal_params.flip_y )
+ index = y * width + x;
+ else
+ index = ( rows - y - 1 ) * width + x;
+
+ buffer[index] = value;
+ }
+ }
+
+ Exit:
+ return error;
+ }
+
+#endif /* 0 */
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_generate_bounding_box
+ *
+ * @Description:
+ * This function does basically the same thing as `sdf_generate` above
+ * but more efficiently.
+ *
+ * Instead of checking all pixels against all edges, we loop over all
+ * edges and only check pixels around the control box of the edge; the
+ * control box is increased by the spread in all directions. Anything
+ * outside of the control box that exceeds `spread` doesn't need to be
+ * computed.
+ *
+ * Lastly, to determine the sign of unchecked pixels, we do a single
+ * pass of all rows starting with a '+' sign and flipping when we come
+ * across a '-' sign and continue. This also eliminates the possibility
+ * of overflow because we only check the proximity of the curve.
+ * Therefore we can use squared distanced safely.
+ *
+ * @Input:
+ * internal_params ::
+ * Internal parameters and properties required by the rasterizer.
+ * See @SDF_Params for more.
+ *
+ * shape ::
+ * A complete shape which is used to generate SDF.
+ *
+ * spread ::
+ * Maximum distances to be allowed in the output bitmap.
+ *
+ * @Output:
+ * bitmap ::
+ * The output bitmap which will contain the SDF information.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ sdf_generate_bounding_box( const SDF_Params internal_params,
+ const SDF_Shape* shape,
+ FT_UInt spread,
+ const FT_Bitmap* bitmap )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = NULL;
+
+ FT_Int width, rows, i, j;
+ FT_Int sp_sq; /* max value to check */
+
+ SDF_Contour* contours; /* list of all contours */
+ FT_SDFFormat* buffer; /* the bitmap buffer */
+
+ /* This buffer has the same size in indices as the */
+ /* bitmap buffer. When we check a pixel position for */
+ /* a shortest distance we keep it in this buffer. */
+ /* This way we can find out which pixel is set, */
+ /* and also determine the signs properly. */
+ SDF_Signed_Distance* dists = NULL;
+
+ const FT_16D16 fixed_spread = FT_INT_16D16( spread );
+
+
+ if ( !shape || !bitmap )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( spread < MIN_SPREAD || spread > MAX_SPREAD )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ memory = shape->memory;
+ if ( !memory )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( FT_ALLOC( dists,
+ bitmap->width * bitmap->rows * sizeof ( *dists ) ) )
+ goto Exit;
+
+ contours = shape->contours;
+ width = (FT_Int)bitmap->width;
+ rows = (FT_Int)bitmap->rows;
+ buffer = (FT_SDFFormat*)bitmap->buffer;
+
+ if ( USE_SQUARED_DISTANCES )
+ sp_sq = fixed_spread * fixed_spread;
+ else
+ sp_sq = fixed_spread;
+
+ if ( width == 0 || rows == 0 )
+ {
+ FT_TRACE0(( "sdf_generate:"
+ " Cannot render glyph with width/height == 0\n" ));
+ FT_TRACE0(( " "
+ " (width, height provided [%d, %d])", width, rows ));
+
+ error = FT_THROW( Cannot_Render_Glyph );
+ goto Exit;
+ }
+
+ /* loop over all contours */
+ while ( contours )
+ {
+ SDF_Edge* edges = contours->edges;
+
+
+ /* loop over all edges */
+ while ( edges )
+ {
+ FT_CBox cbox;
+ FT_Int x, y;
+
+
+ /* get the control box and increase it by `spread' */
+ cbox = get_control_box( *edges );
+
+ cbox.xMin = ( cbox.xMin - 63 ) / 64 - ( FT_Pos )spread;
+ cbox.xMax = ( cbox.xMax + 63 ) / 64 + ( FT_Pos )spread;
+ cbox.yMin = ( cbox.yMin - 63 ) / 64 - ( FT_Pos )spread;
+ cbox.yMax = ( cbox.yMax + 63 ) / 64 + ( FT_Pos )spread;
+
+ /* now loop over the pixels in the control box. */
+ for ( y = cbox.yMin; y < cbox.yMax; y++ )
+ {
+ for ( x = cbox.xMin; x < cbox.xMax; x++ )
+ {
+ FT_26D6_Vec grid_point = zero_vector;
+ SDF_Signed_Distance dist = max_sdf;
+ FT_UInt index = 0;
+
+
+ if ( x < 0 || x >= width )
+ continue;
+ if ( y < 0 || y >= rows )
+ continue;
+
+ grid_point.x = FT_INT_26D6( x );
+ grid_point.y = FT_INT_26D6( y );
+
+ /* This `grid_point` is at the corner, but we */
+ /* use the center of the pixel. */
+ grid_point.x += FT_INT_26D6( 1 ) / 2;
+ grid_point.y += FT_INT_26D6( 1 ) / 2;
+
+ FT_CALL( sdf_edge_get_min_distance( edges,
+ grid_point,
+ &dist ) );
+
+ if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT )
+ dist.sign = -dist.sign;
+
+ /* ignore if the distance is greater than spread; */
+ /* otherwise it creates artifacts due to the wrong sign */
+ if ( dist.distance > sp_sq )
+ continue;
+
+ /* square_root the values and fit in a 6.10 fixed-point */
+ if ( USE_SQUARED_DISTANCES )
+ dist.distance = square_root( dist.distance );
+
+ if ( internal_params.flip_y )
+ index = (FT_UInt)( y * width + x );
+ else
+ index = (FT_UInt)( ( rows - y - 1 ) * width + x );
+
+ /* check whether the pixel is set or not */
+ if ( dists[index].sign == 0 )
+ dists[index] = dist;
+ else if ( dists[index].distance > dist.distance )
+ dists[index] = dist;
+ else if ( FT_ABS( dists[index].distance - dist.distance )
+ < CORNER_CHECK_EPSILON )
+ dists[index] = resolve_corner( dists[index], dist );
+ }
+ }
+
+ edges = edges->next;
+ }
+
+ contours = contours->next;
+ }
+
+ /* final pass */
+ for ( j = 0; j < rows; j++ )
+ {
+ /* We assume the starting pixel of each row is outside. */
+ FT_Char current_sign = -1;
+ FT_UInt index;
+
+
+ if ( internal_params.overload_sign != 0 )
+ current_sign = internal_params.overload_sign < 0 ? -1 : 1;
+
+ for ( i = 0; i < width; i++ )
+ {
+ index = (FT_UInt)( j * width + i );
+
+ /* if the pixel is not set */
+ /* its shortest distance is more than `spread` */
+ if ( dists[index].sign == 0 )
+ dists[index].distance = fixed_spread;
+ else
+ current_sign = dists[index].sign;
+
+ /* clamp the values */
+ if ( dists[index].distance > fixed_spread )
+ dists[index].distance = fixed_spread;
+
+ /* flip sign if required */
+ dists[index].distance *= internal_params.flip_sign ? -current_sign
+ : current_sign;
+
+ /* concatenate to appropriate format */
+ buffer[index] = map_fixed_to_sdf( dists[index].distance,
+ fixed_spread );
+ }
+ }
+
+ Exit:
+ FT_FREE( dists );
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_generate_subdivision
+ *
+ * @Description:
+ * Subdivide the shape into a number of straight lines, then use the
+ * above `sdf_generate_bounding_box` function to generate the SDF.
+ *
+ * Note: After calling this function `shape` no longer has the original
+ * edges, it only contains lines.
+ *
+ * @Input:
+ * internal_params ::
+ * Internal parameters and properties required by the rasterizer.
+ * See @SDF_Params for more.
+ *
+ * shape ::
+ * A complete shape which is used to generate SDF.
+ *
+ * spread ::
+ * Maximum distances to be allowed inthe output bitmap.
+ *
+ * @Output:
+ * bitmap ::
+ * The output bitmap which will contain the SDF information.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ */
+ static FT_Error
+ sdf_generate_subdivision( const SDF_Params internal_params,
+ SDF_Shape* shape,
+ FT_UInt spread,
+ const FT_Bitmap* bitmap )
+ {
+ /*
+ * Thanks to Alexei for providing the idea of this optimization.
+ *
+ * We take advantage of two facts.
+ *
+ * (1) Computing the shortest distance from a point to a line segment is
+ * very fast.
+ * (2) We don't have to compute the shortest distance for the entire
+ * two-dimensional grid.
+ *
+ * Both ideas lead to the following optimization.
+ *
+ * (1) Split the outlines into a number of line segments.
+ *
+ * (2) For each line segment, only process its neighborhood.
+ *
+ * (3) Compute the closest distance to the line only for neighborhood
+ * grid points.
+ *
+ * This greatly reduces the number of grid points to check.
+ */
+
+ FT_Error error = FT_Err_Ok;
+
+
+ FT_CALL( split_sdf_shape( shape ) );
+ FT_CALL( sdf_generate_bounding_box( internal_params,
+ shape, spread, bitmap ) );
+
+ Exit:
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * @Function:
+ * sdf_generate_with_overlaps
+ *
+ * @Description:
+ * This function can be used to generate SDF for glyphs with overlapping
+ * contours. The function generates SDF for contours separately on
+ * separate bitmaps (to generate SDF it uses
+ * `sdf_generate_subdivision`). At the end it simply combines all the
+ * SDF into the output bitmap; this fixes all the signs and removes
+ * overlaps.
+ *
+ * @Input:
+ * internal_params ::
+ * Internal parameters and properties required by the rasterizer. See
+ * @SDF_Params for more.
+ *
+ * shape ::
+ * A complete shape which is used to generate SDF.
+ *
+ * spread ::
+ * Maximum distances to be allowed in the output bitmap.
+ *
+ * @Output:
+ * bitmap ::
+ * The output bitmap which will contain the SDF information.
+ *
+ * @Return:
+ * FreeType error, 0 means success.
+ *
+ * @Note:
+ * The function cannot generate a proper SDF for glyphs with
+ * self-intersecting contours because we cannot separate them into two
+ * separate bitmaps. In case of self-intersecting contours it is
+ * necessary to remove the overlaps before generating the SDF.
+ *
+ */
+ static FT_Error
+ sdf_generate_with_overlaps( SDF_Params internal_params,
+ SDF_Shape* shape,
+ FT_UInt spread,
+ const FT_Bitmap* bitmap )
+ {
+ FT_Error error = FT_Err_Ok;
+
+ FT_Int num_contours; /* total number of contours */
+ FT_Int i, j; /* iterators */
+ FT_Int width, rows; /* width and rows of the bitmap */
+ FT_Bitmap* bitmaps; /* separate bitmaps for contours */
+
+ SDF_Contour* contour; /* temporary variable to iterate */
+ SDF_Contour* temp_contour; /* temporary contour */
+ SDF_Contour* head; /* head of the contour list */
+ SDF_Shape temp_shape; /* temporary shape */
+
+ FT_Memory memory; /* to allocate memory */
+ FT_SDFFormat* t; /* target bitmap buffer */
+ FT_Bool flip_sign; /* flip sign? */
+
+ /* orientation of all the separate contours */
+ SDF_Contour_Orientation* orientations;
+
+
+ bitmaps = NULL;
+ orientations = NULL;
+ head = NULL;
+
+ if ( !shape || !bitmap || !shape->memory )
+ return FT_THROW( Invalid_Argument );
+
+ /* Disable `flip_sign` to avoid extra complication */
+ /* during the combination phase. */
+ flip_sign = internal_params.flip_sign;
+ internal_params.flip_sign = 0;
+
+ contour = shape->contours;
+ memory = shape->memory;
+ temp_shape.memory = memory;
+ width = (FT_Int)bitmap->width;
+ rows = (FT_Int)bitmap->rows;
+ num_contours = 0;
+
+ /* find the number of contours in the shape */
+ while ( contour )
+ {
+ num_contours++;
+ contour = contour->next;
+ }
+
+ /* allocate the bitmaps to generate SDF for separate contours */
+ if ( FT_ALLOC( bitmaps,
+ (FT_UInt)num_contours * sizeof ( *bitmaps ) ) )
+ goto Exit;
+
+ /* allocate array to hold orientation for all contours */
+ if ( FT_ALLOC( orientations,
+ (FT_UInt)num_contours * sizeof ( *orientations ) ) )
+ goto Exit;
+
+ contour = shape->contours;
+
+ /* Iterate over all contours and generate SDF separately. */
+ for ( i = 0; i < num_contours; i++ )
+ {
+ /* initialize the corresponding bitmap */
+ FT_Bitmap_Init( &bitmaps[i] );
+
+ bitmaps[i].width = bitmap->width;
+ bitmaps[i].rows = bitmap->rows;
+ bitmaps[i].pitch = bitmap->pitch;
+ bitmaps[i].num_grays = bitmap->num_grays;
+ bitmaps[i].pixel_mode = bitmap->pixel_mode;
+
+ /* allocate memory for the buffer */
+ if ( FT_ALLOC( bitmaps[i].buffer,
+ bitmap->rows * (FT_UInt)bitmap->pitch ) )
+ goto Exit;
+
+ /* determine the orientation */
+ orientations[i] = get_contour_orientation( contour );
+
+ /* The `overload_sign` property is specific to */
+ /* `sdf_generate_bounding_box`. This basically */
+ /* overloads the default sign of the outside */
+ /* pixels, which is necessary for */
+ /* counter-clockwise contours. */
+ if ( orientations[i] == SDF_ORIENTATION_CCW &&
+ internal_params.orientation == FT_ORIENTATION_FILL_RIGHT )
+ internal_params.overload_sign = 1;
+ else if ( orientations[i] == SDF_ORIENTATION_CW &&
+ internal_params.orientation == FT_ORIENTATION_FILL_LEFT )
+ internal_params.overload_sign = 1;
+ else
+ internal_params.overload_sign = 0;
+
+ /* Make `contour->next` NULL so that there is */
+ /* one contour in the list. Also hold the next */
+ /* contour in a temporary variable so as to */
+ /* restore the original value. */
+ temp_contour = contour->next;
+ contour->next = NULL;
+
+ /* Use `temp_shape` to hold the new contour. */
+ /* Now, `temp_shape` has only one contour. */
+ temp_shape.contours = contour;
+
+ /* finally generate the SDF */
+ FT_CALL( sdf_generate_subdivision( internal_params,
+ &temp_shape,
+ spread,
+ &bitmaps[i] ) );
+
+ /* Restore the original `next` variable. */
+ contour->next = temp_contour;
+
+ /* Since `split_sdf_shape` deallocated the original */
+ /* contours list we need to assign the new value to */
+ /* the shape's contour. */
+ temp_shape.contours->next = head;
+ head = temp_shape.contours;
+
+ /* Simply flip the orientation in case of post-script fonts */
+ /* so as to avoid modificatons in the combining phase. */
+ if ( internal_params.orientation == FT_ORIENTATION_FILL_LEFT )
+ {
+ if ( orientations[i] == SDF_ORIENTATION_CW )
+ orientations[i] = SDF_ORIENTATION_CCW;
+ else if ( orientations[i] == SDF_ORIENTATION_CCW )
+ orientations[i] = SDF_ORIENTATION_CW;
+ }
+
+ contour = contour->next;
+ }
+
+ /* assign the new contour list to `shape->contours` */
+ shape->contours = head;
+
+ /* cast the output bitmap buffer */
+ t = (FT_SDFFormat*)bitmap->buffer;
+
+ /* Iterate over all pixels and combine all separate */
+ /* contours. These are the rules for combining: */
+ /* */
+ /* (1) For all clockwise contours, compute the largest */
+ /* value. Name this as `val_c`. */
+ /* (2) For all counter-clockwise contours, compute the */
+ /* smallest value. Name this as `val_ac`. */
+ /* (3) Now, finally use the smaller value of `val_c' */
+ /* and `val_ac'. */
+ for ( j = 0; j < rows; j++ )
+ {
+ for ( i = 0; i < width; i++ )
+ {
+ FT_Int id = j * width + i; /* index of current pixel */
+ FT_Int c; /* contour iterator */
+
+ FT_SDFFormat val_c = 0; /* max clockwise value */
+ FT_SDFFormat val_ac = UCHAR_MAX; /* min counter-clockwise val */
+
+
+ /* iterate through all the contours */
+ for ( c = 0; c < num_contours; c++ )
+ {
+ /* current contour value */
+ FT_SDFFormat temp = ( (FT_SDFFormat*)bitmaps[c].buffer )[id];
+
+
+ if ( orientations[c] == SDF_ORIENTATION_CW )
+ val_c = FT_MAX( val_c, temp ); /* clockwise */
+ else
+ val_ac = FT_MIN( val_ac, temp ); /* counter-clockwise */
+ }
+
+ /* Finally find the smaller of the two and assign to output. */
+ /* Also apply `flip_sign` if set. */
+ t[id] = FT_MIN( val_c, val_ac );
+
+ if ( flip_sign )
+ t[id] = invert_sign( t[id] );
+ }
+ }
+
+ Exit:
+ /* deallocate orientations array */
+ if ( orientations )
+ FT_FREE( orientations );
+
+ /* deallocate temporary bitmaps */
+ if ( bitmaps )
+ {
+ if ( num_contours == 0 )
+ error = FT_THROW( Raster_Corrupted );
+ else
+ {
+ for ( i = 0; i < num_contours; i++ )
+ FT_FREE( bitmaps[i].buffer );
+
+ FT_FREE( bitmaps );
+ }
+ }
+
+ /* restore the `flip_sign` property */
+ internal_params.flip_sign = flip_sign;
+
+ return error;
+ }
+
+
+ /**************************************************************************
+ *
+ * interface functions
+ *
+ */
+
+ static FT_Error
+ sdf_raster_new( FT_Memory memory,
+ SDF_PRaster* araster )
+ {
+ FT_Error error;
+ SDF_PRaster raster = NULL;
+
+
+ if ( !FT_NEW( raster ) )
+ raster->memory = memory;
+
+ *araster = raster;
+
+ return error;
+ }
+
+
+ static void
+ sdf_raster_reset( FT_Raster raster,
+ unsigned char* pool_base,
+ unsigned long pool_size )
+ {
+ FT_UNUSED( raster );
+ FT_UNUSED( pool_base );
+ FT_UNUSED( pool_size );
+ }
+
+
+ static FT_Error
+ sdf_raster_set_mode( FT_Raster raster,
+ unsigned long mode,
+ void* args )
+ {
+ FT_UNUSED( raster );
+ FT_UNUSED( mode );
+ FT_UNUSED( args );
+
+ return FT_Err_Ok;
+ }
+
+
+ static FT_Error
+ sdf_raster_render( FT_Raster raster,
+ const FT_Raster_Params* params )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_TRaster* sdf_raster = (SDF_TRaster*)raster;
+ FT_Outline* outline = NULL;
+ const SDF_Raster_Params* sdf_params = (const SDF_Raster_Params*)params;
+
+ FT_Memory memory = NULL;
+ SDF_Shape* shape = NULL;
+ SDF_Params internal_params;
+
+
+ /* check for valid arguments */
+ if ( !sdf_raster || !sdf_params )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ outline = (FT_Outline*)sdf_params->root.source;
+
+ /* check whether outline is valid */
+ if ( !outline )
+ {
+ error = FT_THROW( Invalid_Outline );
+ goto Exit;
+ }
+
+ /* if the outline is empty, return */
+ if ( outline->n_points <= 0 || outline->n_contours <= 0 )
+ goto Exit;
+
+ /* check whether the outline has valid fields */
+ if ( !outline->contours || !outline->points )
+ {
+ error = FT_THROW( Invalid_Outline );
+ goto Exit;
+ }
+
+ /* check whether spread is set properly */
+ if ( sdf_params->spread > MAX_SPREAD ||
+ sdf_params->spread < MIN_SPREAD )
+ {
+ FT_TRACE0(( "sdf_raster_render:"
+ " The `spread' field of `SDF_Raster_Params' is invalid,\n" ));
+ FT_TRACE0(( " "
+ " the value of this field must be within [%d, %d].\n",
+ MIN_SPREAD, MAX_SPREAD ));
+ FT_TRACE0(( " "
+ " Also, you must pass `SDF_Raster_Params' instead of\n" ));
+ FT_TRACE0(( " "
+ " the default `FT_Raster_Params' while calling\n" ));
+ FT_TRACE0(( " "
+ " this function and set the fields properly.\n" ));
+
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ memory = sdf_raster->memory;
+ if ( !memory )
+ {
+ FT_TRACE0(( "sdf_raster_render:"
+ " Raster not setup properly,\n" ));
+ FT_TRACE0(( " "
+ " unable to find memory handle.\n" ));
+
+ error = FT_THROW( Invalid_Handle );
+ goto Exit;
+ }
+
+ /* set up the parameters */
+ internal_params.orientation = FT_Outline_Get_Orientation( outline );
+ internal_params.flip_sign = sdf_params->flip_sign;
+ internal_params.flip_y = sdf_params->flip_y;
+ internal_params.overload_sign = 0;
+
+ FT_CALL( sdf_shape_new( memory, &shape ) );
+
+ FT_CALL( sdf_outline_decompose( outline, shape ) );
+
+ if ( sdf_params->overlaps )
+ FT_CALL( sdf_generate_with_overlaps( internal_params,
+ shape, sdf_params->spread,
+ sdf_params->root.target ) );
+ else
+ FT_CALL( sdf_generate_subdivision( internal_params,
+ shape, sdf_params->spread,
+ sdf_params->root.target ) );
+
+ if ( shape )
+ sdf_shape_done( &shape );
+
+ Exit:
+ return error;
+ }
+
+
+ static void
+ sdf_raster_done( FT_Raster raster )
+ {
+ FT_Memory memory = (FT_Memory)((SDF_TRaster*)raster)->memory;
+
+
+ FT_FREE( raster );
+ }
+
+
+ FT_DEFINE_RASTER_FUNCS(
+ ft_sdf_raster,
+
+ FT_GLYPH_FORMAT_OUTLINE,
+
+ (FT_Raster_New_Func) sdf_raster_new, /* raster_new */
+ (FT_Raster_Reset_Func) sdf_raster_reset, /* raster_reset */
+ (FT_Raster_Set_Mode_Func)sdf_raster_set_mode, /* raster_set_mode */
+ (FT_Raster_Render_Func) sdf_raster_render, /* raster_render */
+ (FT_Raster_Done_Func) sdf_raster_done /* raster_done */
+ )
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdf.h b/thirdparty/freetype/src/sdf/ftsdf.h
new file mode 100644
index 0000000000..187b418af3
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdf.h
@@ -0,0 +1,97 @@
+/****************************************************************************
+ *
+ * ftsdf.h
+ *
+ * Signed Distance Field support (specification).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef FTSDF_H_
+#define FTSDF_H_
+
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+#include <freetype/ftimage.h>
+
+/* common properties and function */
+#include "ftsdfcommon.h"
+
+FT_BEGIN_HEADER
+
+ /**************************************************************************
+ *
+ * @struct:
+ * SDF_Raster_Params
+ *
+ * @description:
+ * This struct must be passed to the raster render function
+ * @FT_Raster_RenderFunc instead of @FT_Raster_Params because the
+ * rasterizer requires some additional information to render properly.
+ *
+ * @fields:
+ * root ::
+ * The native raster parameters structure.
+ *
+ * spread ::
+ * This is an essential parameter/property required by the renderer.
+ * `spread` defines the maximum unsigned value that is present in the
+ * final SDF output. For the default value check file
+ * `ftsdfcommon.h`.
+ *
+ * flip_sign ::
+ * By default positive values indicate positions inside of contours,
+ * i.e., filled by a contour. If this property is true then that
+ * output will be the opposite of the default, i.e., negative values
+ * indicate positions inside of contours.
+ *
+ * flip_y ::
+ * Setting this parameter to true maked the output image flipped
+ * along the y-axis.
+ *
+ * overlaps ::
+ * Set this to true to generate SDF for glyphs having overlapping
+ * contours. The overlapping support is limited to glyphs that do not
+ * have self-intersecting contours. Also, removing overlaps require a
+ * considerable amount of extra memory; additionally, it will not work
+ * if generating SDF from bitmap.
+ *
+ * @note:
+ * All properties are valid for both the 'sdf' and 'bsdf' renderers; the
+ * exception is `overlaps`, which gets ignored by the 'bsdf' renderer.
+ *
+ */
+ typedef struct SDF_Raster_Params_
+ {
+ FT_Raster_Params root;
+ FT_UInt spread;
+ FT_Bool flip_sign;
+ FT_Bool flip_y;
+ FT_Bool overlaps;
+
+ } SDF_Raster_Params;
+
+
+ /* rasterizer to convert outline to SDF */
+ FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_sdf_raster;
+
+ /* rasterizer to convert bitmap to SDF */
+ FT_EXPORT_VAR( const FT_Raster_Funcs ) ft_bitmap_sdf_raster;
+
+FT_END_HEADER
+
+#endif /* FTSDF_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdfcommon.c b/thirdparty/freetype/src/sdf/ftsdfcommon.c
new file mode 100644
index 0000000000..91aa521bb3
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdfcommon.c
@@ -0,0 +1,147 @@
+/****************************************************************************
+ *
+ * ftsdfcommon.c
+ *
+ * Auxiliary data for Signed Distance Field support (body).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include "ftsdf.h"
+#include "ftsdfcommon.h"
+
+
+ /**************************************************************************
+ *
+ * common functions
+ *
+ */
+
+ /*
+ * Original algorithm:
+ *
+ * https://github.com/chmike/fpsqrt
+ *
+ * Use this to compute the square root of a 16.16 fixed point number.
+ */
+ FT_LOCAL_DEF( FT_16D16 )
+ square_root( FT_16D16 val )
+ {
+ FT_ULong t, q, b, r;
+
+
+ r = (FT_ULong)val;
+ b = 0x40000000L;
+ q = 0;
+
+ while ( b > 0x40L )
+ {
+ t = q + b;
+
+ if ( r >= t )
+ {
+ r -= t;
+ q = t + b;
+ }
+
+ r <<= 1;
+ b >>= 1;
+ }
+
+ q >>= 8;
+
+ return (FT_16D16)q;
+ }
+
+
+ /**************************************************************************
+ *
+ * format and sign manipulating functions
+ *
+ */
+
+ /*
+ * Convert 16.16 fixed point values to the desired output format.
+ * In this case we reduce 16.16 fixed point values to normalized
+ * 8-bit values.
+ *
+ * The `max_value` in the parameter is the maximum value in the
+ * distance field map and is equal to the spread. We normalize
+ * the distances using this value instead of computing the maximum
+ * value for the entire bitmap.
+ *
+ * You can use this function to map the 16.16 signed values to any
+ * format required. Do note that the output buffer is 8-bit, so only
+ * use an 8-bit format for `FT_SDFFormat`, or increase the buffer size in
+ * `ftsdfrend.c`.
+ */
+ FT_LOCAL_DEF( FT_SDFFormat )
+ map_fixed_to_sdf( FT_16D16 dist,
+ FT_16D16 max_value )
+ {
+ FT_SDFFormat out;
+ FT_16D16 udist;
+
+
+ /* normalize the distance values */
+ dist = FT_DivFix( dist, max_value );
+
+ udist = dist < 0 ? -dist : dist;
+
+ /* Reduce the distance values to 8 bits. */
+ /* */
+ /* Since +1/-1 in 16.16 takes the 16th bit, we right-shift */
+ /* the number by 9 to make it fit into the 7-bit range. */
+ /* */
+ /* One bit is reserved for the sign. */
+ udist >>= 9;
+
+ /* Since `char` can only store a maximum positive value */
+ /* of 127 we need to make sure it does not wrap around and */
+ /* give a negative value. */
+ if ( dist > 0 && udist > 127 )
+ udist = 127;
+ if ( dist < 0 && udist > 128 )
+ udist = 128;
+
+ /* Output the data; negative values are from [0, 127] and positive */
+ /* from [128, 255]. One important thing is that negative values */
+ /* are inverted here, that means [0, 128] maps to [-128, 0] linearly. */
+ /* More on that in `freetype.h` near the documentation of */
+ /* `FT_RENDER_MODE_SDF`. */
+ out = dist < 0 ? 128 - (FT_SDFFormat)udist
+ : (FT_SDFFormat)udist + 128;
+
+ return out;
+ }
+
+
+ /*
+ * Invert the signed distance packed into the corresponding format.
+ * So if the values are negative they will become positive in the
+ * chosen format.
+ *
+ * [Note]: This function should only be used after converting the
+ * 16.16 signed distance values to `FT_SDFFormat`. If that
+ * conversion has not been done, then simply invert the sign
+ * and use the above function to pack the values.
+ */
+ FT_LOCAL_DEF( FT_SDFFormat )
+ invert_sign( FT_SDFFormat dist )
+ {
+ return 255 - dist;
+ }
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdfcommon.h b/thirdparty/freetype/src/sdf/ftsdfcommon.h
new file mode 100644
index 0000000000..44f6bba53f
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdfcommon.h
@@ -0,0 +1,139 @@
+/****************************************************************************
+ *
+ * ftsdfcommon.h
+ *
+ * Auxiliary data for Signed Distance Field support (specification).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+ /****************************************************
+ *
+ * This file contains common functions and properties
+ * for both the 'sdf' and 'bsdf' renderers.
+ *
+ */
+
+#ifndef FTSDFCOMMON_H_
+#define FTSDFCOMMON_H_
+
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
+#include <freetype/internal/ftobjs.h>
+
+
+FT_BEGIN_HEADER
+
+
+ /**************************************************************************
+ *
+ * default values (cannot be set individually for each renderer)
+ *
+ */
+
+ /* default spread value */
+#define DEFAULT_SPREAD 8
+ /* minimum spread supported by the renderer */
+#define MIN_SPREAD 2
+ /* maximum spread supported by the renderer */
+#define MAX_SPREAD 32
+
+
+ /**************************************************************************
+ *
+ * common definitions (cannot be set individually for each renderer)
+ *
+ */
+
+ /* If this macro is set to 1 the rasterizer uses squared distances for */
+ /* computation. It can greatly improve the performance but there is a */
+ /* chance of overflow and artifacts. You can safely use it up to a */
+ /* pixel size of 128. */
+#ifndef USE_SQUARED_DISTANCES
+#define USE_SQUARED_DISTANCES 0
+#endif
+
+
+ /**************************************************************************
+ *
+ * common macros
+ *
+ */
+
+ /* convert int to 26.6 fixed-point */
+#define FT_INT_26D6( x ) ( x * 64 )
+ /* convert int to 16.16 fixed-point */
+#define FT_INT_16D16( x ) ( x * 65536 )
+ /* convert 26.6 to 16.16 fixed-point */
+#define FT_26D6_16D16( x ) ( x * 1024 )
+
+
+ /* Convenience macro to call a function; it */
+ /* jumps to label `Exit` if an error occurs. */
+#define FT_CALL( x ) do \
+ { \
+ error = ( x ); \
+ if ( error != FT_Err_Ok ) \
+ goto Exit; \
+ } while ( 0 )
+
+
+ /*
+ * The macro `VECTOR_LENGTH_16D16` computes either squared distances or
+ * actual distances, depending on the value of `USE_SQUARED_DISTANCES`.
+ *
+ * By using squared distances the performance can be greatly improved but
+ * there is a risk of overflow.
+ */
+#if USE_SQUARED_DISTANCES
+#define VECTOR_LENGTH_16D16( v ) ( FT_MulFix( v.x, v.x ) + \
+ FT_MulFix( v.y, v.y ) )
+#else
+#define VECTOR_LENGTH_16D16( v ) FT_Vector_Length( &v )
+#endif
+
+
+ /**************************************************************************
+ *
+ * common typedefs
+ *
+ */
+
+ typedef FT_Vector FT_26D6_Vec; /* with 26.6 fixed-point components */
+ typedef FT_Vector FT_16D16_Vec; /* with 16.16 fixed-point components */
+
+ typedef FT_Fixed FT_16D16; /* 16.16 fixed-point representation */
+ typedef FT_Fixed FT_26D6; /* 26.6 fixed-point representation */
+ typedef FT_Byte FT_SDFFormat; /* format to represent SDF data */
+
+ typedef FT_BBox FT_CBox; /* control box of a curve */
+
+
+ FT_LOCAL( FT_16D16 )
+ square_root( FT_16D16 val );
+
+ FT_LOCAL( FT_SDFFormat )
+ map_fixed_to_sdf( FT_16D16 dist,
+ FT_16D16 max_value );
+
+ FT_LOCAL( FT_SDFFormat )
+ invert_sign( FT_SDFFormat dist );
+
+
+FT_END_HEADER
+
+#endif /* FTSDFCOMMON_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdferrs.h b/thirdparty/freetype/src/sdf/ftsdferrs.h
new file mode 100644
index 0000000000..dbb113d537
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdferrs.h
@@ -0,0 +1,37 @@
+/****************************************************************************
+ *
+ * ftsdferrs.h
+ *
+ * Signed Distance Field error codes (specification only).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef FTSDFERRS_H_
+#define FTSDFERRS_H_
+
+#include <freetype/ftmoderr.h>
+
+#undef FTERRORS_H_
+
+#undef FT_ERR_PREFIX
+#define FT_ERR_PREFIX Sdf_Err_
+#define FT_ERR_BASE FT_Mod_Err_Sdf
+
+#include <freetype/fterrors.h>
+
+#endif /* FTSDFERRS_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdfrend.c b/thirdparty/freetype/src/sdf/ftsdfrend.c
new file mode 100644
index 0000000000..30f2e62a4f
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdfrend.c
@@ -0,0 +1,614 @@
+/****************************************************************************
+ *
+ * ftsdfrend.c
+ *
+ * Signed Distance Field renderer interface (body).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#include <freetype/internal/ftdebug.h>
+#include <freetype/internal/ftobjs.h>
+#include <freetype/internal/services/svprop.h>
+#include <freetype/ftoutln.h>
+#include <freetype/ftbitmap.h>
+#include "ftsdfrend.h"
+#include "ftsdf.h"
+
+#include "ftsdferrs.h"
+
+
+ /**************************************************************************
+ *
+ * The macro FT_COMPONENT is used in trace mode. It is an implicit
+ * parameter of the FT_TRACE() and FT_ERROR() macros, used to print/log
+ * messages during execution.
+ */
+#undef FT_COMPONENT
+#define FT_COMPONENT sdf
+
+
+ /**************************************************************************
+ *
+ * macros and default property values
+ *
+ */
+#define SDF_RENDERER( rend ) ( (SDF_Renderer)rend )
+
+
+ /**************************************************************************
+ *
+ * for setting properties
+ *
+ */
+
+ /* property setter function */
+ static FT_Error
+ sdf_property_set( FT_Module module,
+ const char* property_name,
+ const void* value,
+ FT_Bool value_is_string )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Renderer render = SDF_RENDERER( FT_RENDERER( module ) );
+
+ FT_UNUSED( value_is_string );
+
+
+ if ( ft_strcmp( property_name, "spread" ) == 0 )
+ {
+ FT_Int val = *(const FT_Int*)value;
+
+
+ if ( val > MAX_SPREAD || val < MIN_SPREAD )
+ {
+ FT_TRACE0(( "[sdf] sdf_property_set:"
+ " the `spread' property can have a value\n" ));
+ FT_TRACE0(( " "
+ " within range [%d, %d] (value provided: %d)\n",
+ MIN_SPREAD, MAX_SPREAD, val ));
+
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ render->spread = (FT_UInt)val;
+ FT_TRACE7(( "[sdf] sdf_property_set:"
+ " updated property `spread' to %d\n", val ));
+ }
+
+ else if ( ft_strcmp( property_name, "flip_sign" ) == 0 )
+ {
+ FT_Int val = *(const FT_Int*)value;
+
+
+ render->flip_sign = val ? 1 : 0;
+ FT_TRACE7(( "[sdf] sdf_property_set:"
+ " updated property `flip_sign' to %d\n", val ));
+ }
+
+ else if ( ft_strcmp( property_name, "flip_y" ) == 0 )
+ {
+ FT_Int val = *(const FT_Int*)value;
+
+
+ render->flip_y = val ? 1 : 0;
+ FT_TRACE7(( "[sdf] sdf_property_set:"
+ " updated property `flip_y' to %d\n", val ));
+ }
+
+ else if ( ft_strcmp( property_name, "overlaps" ) == 0 )
+ {
+ FT_Bool val = *(const FT_Bool*)value;
+
+
+ render->overlaps = val;
+ FT_TRACE7(( "[sdf] sdf_property_set:"
+ " updated property `overlaps' to %d\n", val ));
+ }
+
+ else
+ {
+ FT_TRACE0(( "[sdf] sdf_property_set:"
+ " missing property `%s'\n", property_name ));
+ error = FT_THROW( Missing_Property );
+ }
+
+ Exit:
+ return error;
+ }
+
+
+ /* property getter function */
+ static FT_Error
+ sdf_property_get( FT_Module module,
+ const char* property_name,
+ void* value )
+ {
+ FT_Error error = FT_Err_Ok;
+ SDF_Renderer render = SDF_RENDERER( FT_RENDERER( module ) );
+
+
+ if ( ft_strcmp( property_name, "spread" ) == 0 )
+ {
+ FT_UInt* val = (FT_UInt*)value;
+
+
+ *val = render->spread;
+ }
+
+ else if ( ft_strcmp( property_name, "flip_sign" ) == 0 )
+ {
+ FT_Int* val = (FT_Int*)value;
+
+
+ *val = render->flip_sign;
+ }
+
+ else if ( ft_strcmp( property_name, "flip_y" ) == 0 )
+ {
+ FT_Int* val = (FT_Int*)value;
+
+
+ *val = render->flip_y;
+ }
+
+ else if ( ft_strcmp( property_name, "overlaps" ) == 0 )
+ {
+ FT_Int* val = (FT_Int*)value;
+
+
+ *val = render->overlaps;
+ }
+
+ else
+ {
+ FT_TRACE0(( "[sdf] sdf_property_get:"
+ " missing property `%s'\n", property_name ));
+ error = FT_THROW( Missing_Property );
+ }
+
+ return error;
+ }
+
+
+ FT_DEFINE_SERVICE_PROPERTIESREC(
+ sdf_service_properties,
+
+ (FT_Properties_SetFunc)sdf_property_set, /* set_property */
+ (FT_Properties_GetFunc)sdf_property_get ) /* get_property */
+
+
+ FT_DEFINE_SERVICEDESCREC1(
+ sdf_services,
+
+ FT_SERVICE_ID_PROPERTIES, &sdf_service_properties )
+
+
+ static FT_Module_Interface
+ ft_sdf_requester( FT_Renderer render,
+ const char* module_interface )
+ {
+ FT_UNUSED( render );
+
+ return ft_service_list_lookup( sdf_services, module_interface );
+ }
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /** **/
+ /** OUTLINE TO SDF CONVERTER **/
+ /** **/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /**************************************************************************
+ *
+ * interface functions
+ *
+ */
+
+ static FT_Error
+ ft_sdf_init( FT_Renderer render )
+ {
+ SDF_Renderer sdf_render = SDF_RENDERER( render );
+
+
+ sdf_render->spread = DEFAULT_SPREAD;
+ sdf_render->flip_sign = 0;
+ sdf_render->flip_y = 0;
+ sdf_render->overlaps = 0;
+
+ return FT_Err_Ok;
+ }
+
+
+ static void
+ ft_sdf_done( FT_Renderer render )
+ {
+ FT_UNUSED( render );
+ }
+
+
+ /* generate signed distance field from a glyph's slot image */
+ static FT_Error
+ ft_sdf_render( FT_Renderer module,
+ FT_GlyphSlot slot,
+ FT_Render_Mode mode,
+ const FT_Vector* origin )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Outline* outline = &slot->outline;
+ FT_Bitmap* bitmap = &slot->bitmap;
+ FT_Memory memory = NULL;
+ FT_Renderer render = NULL;
+
+ FT_Pos x_shift = 0;
+ FT_Pos y_shift = 0;
+
+ FT_Pos x_pad = 0;
+ FT_Pos y_pad = 0;
+
+ SDF_Raster_Params params;
+ SDF_Renderer sdf_module = SDF_RENDERER( module );
+
+
+ render = &sdf_module->root;
+ memory = render->root.memory;
+
+ /* check whether slot format is correct before rendering */
+ if ( slot->format != render->glyph_format )
+ {
+ error = FT_THROW( Invalid_Glyph_Format );
+ goto Exit;
+ }
+
+ /* check whether render mode is correct */
+ if ( mode != FT_RENDER_MODE_SDF )
+ {
+ error = FT_THROW( Cannot_Render_Glyph );
+ goto Exit;
+ }
+
+ /* deallocate the previously allocated bitmap */
+ if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+ {
+ FT_FREE( bitmap->buffer );
+ slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+ }
+
+ /* preset the bitmap using the glyph's outline; */
+ /* the sdf bitmap is similar to an anti-aliased bitmap */
+ /* with a slightly bigger size and different pixel mode */
+ if ( ft_glyphslot_preset_bitmap( slot, FT_RENDER_MODE_NORMAL, origin ) )
+ {
+ error = FT_THROW( Raster_Overflow );
+ goto Exit;
+ }
+
+ /* the rows and pitch must be valid after presetting the */
+ /* bitmap using outline */
+ if ( !bitmap->rows || !bitmap->pitch )
+ {
+ FT_ERROR(( "ft_sdf_render: failed to preset bitmap\n" ));
+
+ error = FT_THROW( Cannot_Render_Glyph );
+ goto Exit;
+ }
+
+ /* the padding will simply be equal to the `spread' */
+ x_pad = sdf_module->spread;
+ y_pad = sdf_module->spread;
+
+ /* apply the padding; will be in all the directions */
+ bitmap->rows += y_pad * 2;
+ bitmap->width += x_pad * 2;
+
+ /* ignore the pitch, pixel mode and set custom */
+ bitmap->pixel_mode = FT_PIXEL_MODE_GRAY;
+ bitmap->pitch = (int)( bitmap->width );
+ bitmap->num_grays = 255;
+
+ /* allocate new buffer */
+ if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, bitmap->pitch ) )
+ goto Exit;
+
+ slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+
+ slot->bitmap_top += y_pad;
+ slot->bitmap_left -= x_pad;
+
+ x_shift = 64 * -slot->bitmap_left;
+ y_shift = 64 * -slot->bitmap_top;
+ y_shift += 64 * (FT_Int)bitmap->rows;
+
+ if ( origin )
+ {
+ x_shift += origin->x;
+ y_shift += origin->y;
+ }
+
+ /* translate outline to render it into the bitmap */
+ if ( x_shift || y_shift )
+ FT_Outline_Translate( outline, x_shift, y_shift );
+
+ /* set up parameters */
+ params.root.target = bitmap;
+ params.root.source = outline;
+ params.root.flags = FT_RASTER_FLAG_SDF;
+ params.spread = sdf_module->spread;
+ params.flip_sign = sdf_module->flip_sign;
+ params.flip_y = sdf_module->flip_y;
+ params.overlaps = sdf_module->overlaps;
+
+ /* render the outline */
+ error = render->raster_render( render->raster,
+ (const FT_Raster_Params*)&params );
+
+ /* transform the outline back to the original state */
+ if ( x_shift || y_shift )
+ FT_Outline_Translate( outline, -x_shift, -y_shift );
+
+ Exit:
+ if ( !error )
+ {
+ /* the glyph is successfully rendered to a bitmap */
+ slot->format = FT_GLYPH_FORMAT_BITMAP;
+ }
+ else if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+ {
+ FT_FREE( bitmap->buffer );
+ slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+ }
+
+ return error;
+ }
+
+
+ /* transform the glyph using matrix and/or delta */
+ static FT_Error
+ ft_sdf_transform( FT_Renderer render,
+ FT_GlyphSlot slot,
+ const FT_Matrix* matrix,
+ const FT_Vector* delta )
+ {
+ FT_Error error = FT_Err_Ok;
+
+
+ if ( slot->format != render->glyph_format )
+ {
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( matrix )
+ FT_Outline_Transform( &slot->outline, matrix );
+
+ if ( delta )
+ FT_Outline_Translate( &slot->outline, delta->x, delta->y );
+
+ Exit:
+ return error;
+ }
+
+
+ /* return the control box of a glyph's outline */
+ static void
+ ft_sdf_get_cbox( FT_Renderer render,
+ FT_GlyphSlot slot,
+ FT_BBox* cbox )
+ {
+ FT_ZERO( cbox );
+
+ if ( slot->format == render->glyph_format )
+ FT_Outline_Get_CBox( &slot->outline, cbox );
+ }
+
+
+ /* set render specific modes or attributes */
+ static FT_Error
+ ft_sdf_set_mode( FT_Renderer render,
+ FT_ULong mode_tag,
+ FT_Pointer data )
+ {
+ /* pass it to the rasterizer */
+ return render->clazz->raster_class->raster_set_mode( render->raster,
+ mode_tag,
+ data );
+ }
+
+
+ FT_DEFINE_RENDERER(
+ ft_sdf_renderer_class,
+
+ FT_MODULE_RENDERER,
+ sizeof ( SDF_Renderer_Module ),
+
+ "sdf",
+ 0x10000L,
+ 0x20000L,
+
+ NULL,
+
+ (FT_Module_Constructor)ft_sdf_init,
+ (FT_Module_Destructor) ft_sdf_done,
+ (FT_Module_Requester) ft_sdf_requester,
+
+ FT_GLYPH_FORMAT_OUTLINE,
+
+ (FT_Renderer_RenderFunc) ft_sdf_render, /* render_glyph */
+ (FT_Renderer_TransformFunc)ft_sdf_transform, /* transform_glyph */
+ (FT_Renderer_GetCBoxFunc) ft_sdf_get_cbox, /* get_glyph_cbox */
+ (FT_Renderer_SetModeFunc) ft_sdf_set_mode, /* set_mode */
+
+ (FT_Raster_Funcs*)&ft_sdf_raster /* raster_class */
+ )
+
+
+ /*************************************************************************/
+ /*************************************************************************/
+ /** **/
+ /** BITMAP TO SDF CONVERTER **/
+ /** **/
+ /*************************************************************************/
+ /*************************************************************************/
+
+ /* generate signed distance field from glyph's bitmap */
+ static FT_Error
+ ft_bsdf_render( FT_Renderer module,
+ FT_GlyphSlot slot,
+ FT_Render_Mode mode,
+ const FT_Vector* origin )
+ {
+ FT_Error error = FT_Err_Ok;
+ FT_Memory memory = NULL;
+
+ FT_Bitmap* bitmap = &slot->bitmap;
+ FT_Renderer render = NULL;
+ FT_Bitmap target;
+
+ FT_Pos x_pad = 0;
+ FT_Pos y_pad = 0;
+
+ SDF_Raster_Params params;
+ SDF_Renderer sdf_module = SDF_RENDERER( module );
+
+
+ /* initialize the bitmap in case any error occurs */
+ FT_Bitmap_Init( &target );
+
+ render = &sdf_module->root;
+ memory = render->root.memory;
+
+ /* check whether slot format is correct before rendering */
+ if ( slot->format != render->glyph_format )
+ {
+ error = FT_THROW( Invalid_Glyph_Format );
+ goto Exit;
+ }
+
+ /* check whether render mode is correct */
+ if ( mode != FT_RENDER_MODE_SDF )
+ {
+ error = FT_THROW( Cannot_Render_Glyph );
+ goto Exit;
+ }
+
+ if ( origin )
+ {
+ FT_ERROR(( "ft_bsdf_render: can't translate the bitmap\n" ));
+
+ error = FT_THROW( Unimplemented_Feature );
+ goto Exit;
+ }
+
+ /* Do not generate SDF if the bitmap is not owned by the */
+ /* glyph: it might be that the source buffer is already freed. */
+ if ( !( slot->internal->flags & FT_GLYPH_OWN_BITMAP ) )
+ {
+ FT_ERROR(( "ft_bsdf_render: can't generate SDF from"
+ " unowned source bitmap\n" ));
+
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ if ( !bitmap->rows || !bitmap->pitch )
+ {
+ FT_ERROR(( "ft_bsdf_render: invalid bitmap size\n" ));
+
+ error = FT_THROW( Invalid_Argument );
+ goto Exit;
+ }
+
+ FT_Bitmap_New( &target );
+
+ /* padding will simply be equal to `spread` */
+ x_pad = sdf_module->spread;
+ y_pad = sdf_module->spread;
+
+ /* apply padding, which extends to all directions */
+ target.rows = bitmap->rows + y_pad * 2;
+ target.width = bitmap->width + x_pad * 2;
+
+ /* set up the target bitmap */
+ target.pixel_mode = FT_PIXEL_MODE_GRAY;
+ target.pitch = (int)( target.width );
+ target.num_grays = 255;
+
+ if ( FT_ALLOC_MULT( target.buffer, target.rows, target.pitch ) )
+ goto Exit;
+
+ /* set up parameters */
+ params.root.target = &target;
+ params.root.source = bitmap;
+ params.root.flags = FT_RASTER_FLAG_SDF;
+ params.spread = sdf_module->spread;
+ params.flip_sign = sdf_module->flip_sign;
+ params.flip_y = sdf_module->flip_y;
+
+ error = render->raster_render( render->raster,
+ (const FT_Raster_Params*)&params );
+
+ Exit:
+ if ( !error )
+ {
+ /* the glyph is successfully converted to a SDF */
+ if ( slot->internal->flags & FT_GLYPH_OWN_BITMAP )
+ {
+ FT_FREE( bitmap->buffer );
+ slot->internal->flags &= ~FT_GLYPH_OWN_BITMAP;
+ }
+
+ slot->bitmap = target;
+ slot->bitmap_top += y_pad;
+ slot->bitmap_left -= x_pad;
+ slot->internal->flags |= FT_GLYPH_OWN_BITMAP;
+ }
+ else if ( target.buffer )
+ FT_FREE( target.buffer );
+
+ return error;
+ }
+
+
+ FT_DEFINE_RENDERER(
+ ft_bitmap_sdf_renderer_class,
+
+ FT_MODULE_RENDERER,
+ sizeof ( SDF_Renderer_Module ),
+
+ "bsdf",
+ 0x10000L,
+ 0x20000L,
+
+ NULL,
+
+ (FT_Module_Constructor)ft_sdf_init,
+ (FT_Module_Destructor) ft_sdf_done,
+ (FT_Module_Requester) ft_sdf_requester,
+
+ FT_GLYPH_FORMAT_BITMAP,
+
+ (FT_Renderer_RenderFunc) ft_bsdf_render, /* render_glyph */
+ (FT_Renderer_TransformFunc)ft_sdf_transform, /* transform_glyph */
+ (FT_Renderer_GetCBoxFunc) ft_sdf_get_cbox, /* get_glyph_cbox */
+ (FT_Renderer_SetModeFunc) ft_sdf_set_mode, /* set_mode */
+
+ (FT_Raster_Funcs*)&ft_bitmap_sdf_raster /* raster_class */
+ )
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/ftsdfrend.h b/thirdparty/freetype/src/sdf/ftsdfrend.h
new file mode 100644
index 0000000000..bc88707ec2
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/ftsdfrend.h
@@ -0,0 +1,118 @@
+/****************************************************************************
+ *
+ * ftsdfrend.h
+ *
+ * Signed Distance Field renderer interface (specification).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#ifndef FTSDFREND_H_
+#define FTSDFREND_H_
+
+#include <freetype/ftrender.h>
+#include <freetype/ftmodapi.h>
+#include <freetype/internal/ftobjs.h>
+
+FT_BEGIN_HEADER
+
+
+ /**************************************************************************
+ *
+ * @struct:
+ * SDF_Renderer_Module
+ *
+ * @description:
+ * This struct extends the native renderer struct `FT_RendererRec`. It
+ * is basically used to store various parameters required by the
+ * renderer and some additional parameters that can be used to tweak the
+ * output of the renderer.
+ *
+ * @fields:
+ * root ::
+ * The native rendere struct.
+ *
+ * spread ::
+ * This is an essential parameter/property required by the renderer.
+ * `spread` defines the maximum unsigned value that is present in the
+ * final SDF output. For the default value check file
+ * `ftsdfcommon.h`.
+ *
+ * flip_sign ::
+ * By default positive values indicate positions inside of contours,
+ * i.e., filled by a contour. If this property is true then that
+ * output will be the opposite of the default, i.e., negative values
+ * indicate positions inside of contours.
+ *
+ * flip_y ::
+ * Setting this parameter to true makes the output image flipped
+ * along the y-axis.
+ *
+ * overlaps ::
+ * Set this to true to generate SDF for glyphs having overlapping
+ * contours. The overlapping support is limited to glyphs that do not
+ * have self-intersecting contours. Also, removing overlaps require a
+ * considerable amount of extra memory; additionally, it will not work
+ * if generating SDF from bitmap.
+ *
+ * @note:
+ * All properties except `overlaps` are valid for both the 'sdf' and
+ * 'bsdf' renderers.
+ *
+ */
+ typedef struct SDF_Renderer_Module_
+ {
+ FT_RendererRec root;
+ FT_UInt spread;
+ FT_Bool flip_sign;
+ FT_Bool flip_y;
+ FT_Bool overlaps;
+
+ } SDF_Renderer_Module, *SDF_Renderer;
+
+
+ /**************************************************************************
+ *
+ * @renderer:
+ * ft_sdf_renderer_class
+ *
+ * @description:
+ * Renderer to convert @FT_Outline to signed distance fields.
+ *
+ */
+ FT_DECLARE_RENDERER( ft_sdf_renderer_class )
+
+
+ /**************************************************************************
+ *
+ * @renderer:
+ * ft_bitmap_sdf_renderer_class
+ *
+ * @description:
+ * This is not exactly a renderer; it is just a converter that
+ * transforms bitmaps to signed distance fields.
+ *
+ * @note:
+ * This is not a separate module, it is part of the 'sdf' module.
+ *
+ */
+ FT_DECLARE_RENDERER( ft_bitmap_sdf_renderer_class )
+
+
+FT_END_HEADER
+
+#endif /* FTSDFREND_H_ */
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sdf/sdf.c b/thirdparty/freetype/src/sdf/sdf.c
new file mode 100644
index 0000000000..1bc3fc385c
--- /dev/null
+++ b/thirdparty/freetype/src/sdf/sdf.c
@@ -0,0 +1,29 @@
+/****************************************************************************
+ *
+ * sdf.c
+ *
+ * FreeType Signed Distance Field renderer module component (body only).
+ *
+ * Copyright (C) 2020-2021 by
+ * David Turner, Robert Wilhelm, and Werner Lemberg.
+ *
+ * Written by Anuj Verma.
+ *
+ * This file is part of the FreeType project, and may only be used,
+ * modified, and distributed under the terms of the FreeType project
+ * license, LICENSE.TXT. By continuing to use, modify, or distribute
+ * this file you indicate that you have read the license and
+ * understand and accept it fully.
+ *
+ */
+
+
+#define FT_MAKE_OPTION_SINGLE_OBJECT
+
+#include "ftsdfrend.c"
+#include "ftsdfcommon.c"
+#include "ftbsdf.c"
+#include "ftsdf.c"
+
+
+/* END */
diff --git a/thirdparty/freetype/src/sfnt/module.mk b/thirdparty/freetype/src/sfnt/module.mk
deleted file mode 100644
index 0f459d8421..0000000000
--- a/thirdparty/freetype/src/sfnt/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 SFNT module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += SFNT_MODULE
-
-define SFNT_MODULE
-$(OPEN_DRIVER) FT_Module_Class, sfnt_module_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)sfnt $(ECHO_DRIVER_DESC)helper module for TrueType & OpenType formats$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/sfnt/pngshim.c b/thirdparty/freetype/src/sfnt/pngshim.c
index f55016122c..02fe37440c 100644
--- a/thirdparty/freetype/src/sfnt/pngshim.c
+++ b/thirdparty/freetype/src/sfnt/pngshim.c
@@ -4,7 +4,7 @@
*
* PNG Bitmap glyph support.
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* Google, Inc.
* Written by Stuart Gill and Behdad Esfahbod.
*
@@ -270,7 +270,10 @@
int bitdepth, color_type, interlace;
FT_Int i;
- png_byte* *rows = NULL; /* pacify compiler */
+
+ /* `rows` gets modified within a 'setjmp' scope; */
+ /* we thus need the `volatile` keyword. */
+ png_byte* *volatile rows = NULL;
if ( x_offset < 0 ||
@@ -427,7 +430,7 @@
goto DestroyExit;
}
- if ( FT_NEW_ARRAY( rows, imgHeight ) )
+ if ( FT_QNEW_ARRAY( rows, imgHeight ) )
{
error = FT_THROW( Out_Of_Memory );
goto DestroyExit;
@@ -438,11 +441,11 @@
png_read_image( png, rows );
- FT_FREE( rows );
-
png_read_end( png, info );
DestroyExit:
+ /* even if reading fails with longjmp, rows must be freed */
+ FT_FREE( rows );
png_destroy_read_struct( &png, &info, NULL );
FT_Stream_Close( &stream );
diff --git a/thirdparty/freetype/src/sfnt/pngshim.h b/thirdparty/freetype/src/sfnt/pngshim.h
index 2d6e83d69b..89efd27545 100644
--- a/thirdparty/freetype/src/sfnt/pngshim.h
+++ b/thirdparty/freetype/src/sfnt/pngshim.h
@@ -4,7 +4,7 @@
*
* PNG Bitmap glyph support.
*
- * Copyright (C) 2013-2020 by
+ * Copyright (C) 2013-2021 by
* Google, Inc.
* Written by Stuart Gill and Behdad Esfahbod.
*
diff --git a/thirdparty/freetype/src/sfnt/rules.mk b/thirdparty/freetype/src/sfnt/rules.mk
deleted file mode 100644
index f56ef060ed..0000000000
--- a/thirdparty/freetype/src/sfnt/rules.mk
+++ /dev/null
@@ -1,85 +0,0 @@
-#
-# FreeType 2 SFNT driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# SFNT driver directory
-#
-SFNT_DIR := $(SRC_DIR)/sfnt
-
-
-# compilation flags for the driver
-#
-SFNT_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(SFNT_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# SFNT driver sources (i.e., C files)
-#
-SFNT_DRV_SRC := $(SFNT_DIR)/pngshim.c \
- $(SFNT_DIR)/sfdriver.c \
- $(SFNT_DIR)/sfobjs.c \
- $(SFNT_DIR)/sfwoff.c \
- $(SFNT_DIR)/sfwoff2.c \
- $(SFNT_DIR)/ttbdf.c \
- $(SFNT_DIR)/ttcmap.c \
- $(SFNT_DIR)/ttcolr.c \
- $(SFNT_DIR)/ttcpal.c \
- $(SFNT_DIR)/ttkern.c \
- $(SFNT_DIR)/ttload.c \
- $(SFNT_DIR)/ttmtx.c \
- $(SFNT_DIR)/ttpost.c \
- $(SFNT_DIR)/ttsbit.c \
- $(SFNT_DIR)/woff2tags.c
-
-# SFNT driver headers
-#
-SFNT_DRV_H := $(SFNT_DRV_SRC:%c=%h) \
- $(SFNT_DIR)/sferrors.h
-
-
-# SFNT driver object(s)
-#
-# SFNT_DRV_OBJ_M is used during `multi' builds.
-# SFNT_DRV_OBJ_S is used during `single' builds.
-#
-SFNT_DRV_OBJ_M := $(SFNT_DRV_SRC:$(SFNT_DIR)/%.c=$(OBJ_DIR)/%.$O)
-SFNT_DRV_OBJ_S := $(OBJ_DIR)/sfnt.$O
-
-# SFNT driver source file for single build
-#
-SFNT_DRV_SRC_S := $(SFNT_DIR)/sfnt.c
-
-
-# SFNT driver - single object
-#
-$(SFNT_DRV_OBJ_S): $(SFNT_DRV_SRC_S) $(SFNT_DRV_SRC) \
- $(FREETYPE_H) $(SFNT_DRV_H)
- $(SFNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SFNT_DRV_SRC_S))
-
-
-# SFNT driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(SFNT_DIR)/%.c $(FREETYPE_H) $(SFNT_DRV_H)
- $(SFNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(SFNT_DRV_OBJ_S)
-DRV_OBJS_M += $(SFNT_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/sfnt/sfdriver.c b/thirdparty/freetype/src/sfnt/sfdriver.c
index 0460339a74..d1d01c99e5 100644
--- a/thirdparty/freetype/src/sfnt/sfdriver.c
+++ b/thirdparty/freetype/src/sfnt/sfdriver.c
@@ -4,7 +4,7 @@
*
* High-level SFNT driver interface (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -501,7 +501,7 @@
FT_UNUSED( error );
- if ( FT_ALLOC( result, entry->stringLength / 2 + 1 ) )
+ if ( FT_QALLOC( result, entry->stringLength / 2 + 1 ) )
return NULL;
if ( FT_STREAM_SEEK( entry->stringOffset ) ||
@@ -560,7 +560,7 @@
FT_UNUSED( error );
- if ( FT_ALLOC( result, entry->stringLength + 1 ) )
+ if ( FT_QALLOC( result, entry->stringLength + 1 ) )
return NULL;
if ( FT_STREAM_SEEK( entry->stringOffset ) ||
@@ -868,8 +868,8 @@
result[len] = '\0';
FT_TRACE0(( "sfnt_get_var_ps_name:"
- " Shortening variation PS name prefix\n"
- " "
+ " Shortening variation PS name prefix\n" ));
+ FT_TRACE0(( " "
" to %d characters\n", len ));
}
@@ -920,16 +920,16 @@
if ( !subfamily_name )
{
FT_TRACE1(( "sfnt_get_var_ps_name:"
- " can't construct named instance PS name;\n"
- " "
+ " can't construct named instance PS name;\n" ));
+ FT_TRACE1(( " "
" trying to construct normal instance PS name\n" ));
goto construct_instance_name;
}
/* after the prefix we have character `-' followed by the */
/* subfamily name (using only characters a-z, A-Z, and 0-9) */
- if ( FT_ALLOC( result, face->var_postscript_prefix_len +
- 1 + ft_strlen( subfamily_name ) + 1 ) )
+ if ( FT_QALLOC( result, face->var_postscript_prefix_len +
+ 1 + ft_strlen( subfamily_name ) + 1 ) )
return NULL;
ft_strcpy( result, face->var_postscript_prefix );
@@ -957,9 +957,9 @@
construct_instance_name:
axis = mm_var->axis;
- if ( FT_ALLOC( result,
- face->var_postscript_prefix_len +
- num_coords * MAX_VALUE_DESCRIPTOR_LEN + 1 ) )
+ if ( FT_QALLOC( result,
+ face->var_postscript_prefix_len +
+ num_coords * MAX_VALUE_DESCRIPTOR_LEN + 1 ) )
return NULL;
p = result;
@@ -993,6 +993,7 @@
if ( t != ' ' && ft_isalnum( t ) )
*p++ = t;
}
+ *p++ = '\0';
}
check_length:
@@ -1213,6 +1214,8 @@
#define PUT_COLOR_LAYERS( a ) NULL
#endif
+#define PUT_COLOR_LAYERS_V1( a ) PUT_COLOR_LAYERS( a )
+
#ifdef TT_CONFIG_OPTION_POSTSCRIPT_NAMES
#define PUT_PS_NAMES( a ) a
#else
@@ -1271,9 +1274,9 @@
/* TT_Free_Table_Func free_eblc */
PUT_EMBEDDED_BITMAPS( tt_face_set_sbit_strike ),
- /* TT_Set_SBit_Strike_Func set_sbit_strike */
+ /* TT_Set_SBit_Strike_Func set_sbit_strike */
PUT_EMBEDDED_BITMAPS( tt_face_load_strike_metrics ),
- /* TT_Load_Strike_Metrics_Func load_strike_metrics */
+ /* TT_Load_Strike_Metrics_Func load_strike_metrics */
PUT_COLOR_LAYERS( tt_face_load_cpal ),
/* TT_Load_Table_Func load_cpal */
@@ -1287,6 +1290,18 @@
/* TT_Set_Palette_Func set_palette */
PUT_COLOR_LAYERS( tt_face_get_colr_layer ),
/* TT_Get_Colr_Layer_Func get_colr_layer */
+
+ PUT_COLOR_LAYERS_V1( tt_face_get_colr_glyph_paint ),
+ /* TT_Get_Color_Glyph_Paint_Func get_colr_glyph_paint */
+ PUT_COLOR_LAYERS_V1( tt_face_get_color_glyph_clipbox ),
+ /* TT_Get_Color_Glyph_ClipBox_Func get_clipbox */
+ PUT_COLOR_LAYERS_V1( tt_face_get_paint_layers ),
+ /* TT_Get_Paint_Layers_Func get_paint_layers */
+ PUT_COLOR_LAYERS_V1( tt_face_get_colorline_stops ),
+ /* TT_Get_Paint get_paint */
+ PUT_COLOR_LAYERS_V1( tt_face_get_paint ),
+ /* TT_Get_Colorline_Stops_Func get_colorline_stops */
+
PUT_COLOR_LAYERS( tt_face_colr_blend_layer ),
/* TT_Blend_Colr_Func colr_blend */
diff --git a/thirdparty/freetype/src/sfnt/sfdriver.h b/thirdparty/freetype/src/sfnt/sfdriver.h
index 1ac2706325..8d5b5ce367 100644
--- a/thirdparty/freetype/src/sfnt/sfdriver.h
+++ b/thirdparty/freetype/src/sfnt/sfdriver.h
@@ -4,7 +4,7 @@
*
* High-level SFNT driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/sferrors.h b/thirdparty/freetype/src/sfnt/sferrors.h
index 55c3e76b66..78e6f03513 100644
--- a/thirdparty/freetype/src/sfnt/sferrors.h
+++ b/thirdparty/freetype/src/sfnt/sferrors.h
@@ -4,7 +4,7 @@
*
* SFNT error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/sfnt.c b/thirdparty/freetype/src/sfnt/sfnt.c
index 471239ff0b..97692cdfb0 100644
--- a/thirdparty/freetype/src/sfnt/sfnt.c
+++ b/thirdparty/freetype/src/sfnt/sfnt.c
@@ -4,7 +4,7 @@
*
* Single object library component.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/sfobjs.c b/thirdparty/freetype/src/sfnt/sfobjs.c
index 39460be2e6..7891024790 100644
--- a/thirdparty/freetype/src/sfnt/sfobjs.c
+++ b/thirdparty/freetype/src/sfnt/sfobjs.c
@@ -4,7 +4,7 @@
*
* SFNT object management (base).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -65,7 +65,7 @@
len = (FT_UInt)entry->stringLength / 2;
- if ( FT_NEW_ARRAY( string, len + 1 ) )
+ if ( FT_QNEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
@@ -100,7 +100,7 @@
len = (FT_UInt)entry->stringLength;
- if ( FT_NEW_ARRAY( string, len + 1 ) )
+ if ( FT_QNEW_ARRAY( string, len + 1 ) )
return NULL;
for ( n = 0; n < len; n++ )
@@ -360,17 +360,27 @@
FT_FRAME_END
};
+#ifndef FT_CONFIG_OPTION_USE_BROTLI
+ FT_UNUSED( face_instance_index );
+ FT_UNUSED( woff2_num_faces );
+#endif
+
face->ttc_header.tag = 0;
face->ttc_header.version = 0;
face->ttc_header.count = 0;
+#if defined( FT_CONFIG_OPTION_USE_ZLIB ) || \
+ defined( FT_CONFIG_OPTION_USE_BROTLI )
retry:
+#endif
+
offset = FT_STREAM_POS();
if ( FT_READ_ULONG( tag ) )
return error;
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
if ( tag == TTAG_wOFF )
{
FT_TRACE2(( "sfnt_open_font: file is a WOFF; synthesizing SFNT\n" ));
@@ -386,7 +396,9 @@
stream = face->root.stream;
goto retry;
}
+#endif
+#ifdef FT_CONFIG_OPTION_USE_BROTLI
if ( tag == TTAG_wOF2 )
{
FT_TRACE2(( "sfnt_open_font: file is a WOFF2; synthesizing SFNT\n" ));
@@ -405,6 +417,7 @@
stream = face->root.stream;
goto retry;
}
+#endif
if ( tag != 0x00010000UL &&
tag != TTAG_ttcf &&
@@ -446,7 +459,7 @@
return FT_THROW( Array_Too_Large );
/* now read the offsets of each font in the file */
- if ( FT_NEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
+ if ( FT_QNEW_ARRAY( face->ttc_header.offsets, face->ttc_header.count ) )
return error;
if ( FT_FRAME_ENTER( face->ttc_header.count * 4L ) )
@@ -464,7 +477,7 @@
face->ttc_header.version = 1 << 16;
face->ttc_header.count = 1;
- if ( FT_NEW( face->ttc_header.offsets ) )
+ if ( FT_QNEW( face->ttc_header.offsets ) )
return error;
face->ttc_header.offsets[0] = offset;
@@ -643,8 +656,8 @@
*/
if ( ( face->variation_support & TT_FACE_FLAG_VAR_FVAR ) &&
- !( FT_ALLOC( default_values, num_axes * 4 ) ||
- FT_ALLOC( instance_values, num_axes * 4 ) ) )
+ !( FT_QALLOC( default_values, num_axes * 4 ) ||
+ FT_QALLOC( instance_values, num_axes * 4 ) ) )
{
/* the current stream position is 16 bytes after the table start */
FT_ULong array_start = FT_STREAM_POS() - 16 + offset;
@@ -820,7 +833,8 @@
/* it doesn't contain outlines. */
/* */
- FT_TRACE2(( "sfnt_load_face: %p\n\n", (void *)face ));
+ FT_TRACE2(( "sfnt_load_face: %p\n", (void *)face ));
+ FT_TRACE2(( "\n" ));
/* do we have outlines in there? */
#ifdef FT_CONFIG_OPTION_INCREMENTAL
@@ -1149,9 +1163,10 @@
}
/* synthesize Unicode charmap if one is missing */
- if ( !has_unicode )
+ if ( !has_unicode &&
+ root->face_flags & FT_FACE_FLAG_GLYPH_NAMES )
{
- FT_CharMapRec cmaprec;
+ FT_CharMapRec cmaprec;
cmaprec.face = root;
@@ -1207,7 +1222,7 @@
/* of `FT_Face', we map `available_sizes' indices to strike */
/* indices */
if ( FT_NEW_ARRAY( root->available_sizes, count ) ||
- FT_NEW_ARRAY( sbit_strike_map, count ) )
+ FT_QNEW_ARRAY( sbit_strike_map, count ) )
goto Exit;
bsize_idx = 0;
@@ -1236,7 +1251,7 @@
}
/* reduce array size to the actually used elements */
- (void)FT_RENEW_ARRAY( sbit_strike_map, count, bsize_idx );
+ FT_MEM_QRENEW_ARRAY( sbit_strike_map, count, bsize_idx );
/* from now on, all strike indices are mapped */
/* using `sbit_strike_map' */
diff --git a/thirdparty/freetype/src/sfnt/sfobjs.h b/thirdparty/freetype/src/sfnt/sfobjs.h
index e8e3042083..172c47ebb4 100644
--- a/thirdparty/freetype/src/sfnt/sfobjs.h
+++ b/thirdparty/freetype/src/sfnt/sfobjs.h
@@ -4,7 +4,7 @@
*
* SFNT object management (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/sfwoff.c b/thirdparty/freetype/src/sfnt/sfwoff.c
index f0a32e1e06..422c816a21 100644
--- a/thirdparty/freetype/src/sfnt/sfwoff.c
+++ b/thirdparty/freetype/src/sfnt/sfwoff.c
@@ -4,7 +4,7 @@
*
* WOFF format management (base).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -23,6 +23,9 @@
#include <freetype/ftgzip.h>
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
+
+
/**************************************************************************
*
* The macro FT_COMPONENT is used in trace mode. It is an implicit
@@ -66,7 +69,7 @@
}
- FT_CALLBACK_DEF( int )
+ FT_COMPARE_DEF( int )
compare_offsets( const void* a,
const void* b )
{
@@ -109,7 +112,7 @@
FT_ULong sfnt_offset;
FT_Int nn;
- FT_ULong old_tag = 0;
+ FT_Tag old_tag = 0;
static const FT_Frame_Field woff_header_fields[] =
{
@@ -160,8 +163,8 @@
}
/* Don't trust `totalSfntSize' before thorough checks. */
- if ( FT_ALLOC( sfnt, 12 + woff.num_tables * 16UL ) ||
- FT_NEW( sfnt_stream ) )
+ if ( FT_QALLOC( sfnt, 12 + woff.num_tables * 16UL ) ||
+ FT_NEW( sfnt_stream ) )
goto Exit;
sfnt_header = sfnt;
@@ -198,9 +201,9 @@
FT_NEW_ARRAY( indices, woff.num_tables ) )
goto Exit;
- FT_TRACE2(( "\n"
- " tag offset compLen origLen checksum\n"
- " -------------------------------------------\n" ));
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " tag offset compLen origLen checksum\n" ));
+ FT_TRACE2(( " -------------------------------------------\n" ));
if ( FT_FRAME_ENTER( 20L * woff.num_tables ) )
goto Exit;
@@ -360,8 +363,6 @@
}
else
{
-#ifdef FT_CONFIG_OPTION_USE_ZLIB
-
/* Uncompress with zlib. */
FT_ULong output_len = table->OrigLength;
@@ -377,13 +378,6 @@
error = FT_THROW( Invalid_Table );
goto Exit1;
}
-
-#else /* !FT_CONFIG_OPTION_USE_ZLIB */
-
- error = FT_THROW( Unimplemented_Feature );
- goto Exit1;
-
-#endif /* !FT_CONFIG_OPTION_USE_ZLIB */
}
FT_FRAME_EXIT();
@@ -433,5 +427,12 @@
#undef WRITE_USHORT
#undef WRITE_ULONG
+#else /* !FT_CONFIG_OPTION_USE_ZLIB */
+
+ /* ANSI C doesn't like empty source files */
+ typedef int _sfwoff_dummy;
+
+#endif /* !FT_CONFIG_OPTION_USE_ZLIB */
+
/* END */
diff --git a/thirdparty/freetype/src/sfnt/sfwoff.h b/thirdparty/freetype/src/sfnt/sfwoff.h
index d177ab1160..3fbdac0fde 100644
--- a/thirdparty/freetype/src/sfnt/sfwoff.h
+++ b/thirdparty/freetype/src/sfnt/sfwoff.h
@@ -4,7 +4,7 @@
*
* WOFFF format management (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -26,12 +26,15 @@
FT_BEGIN_HEADER
+#ifdef FT_CONFIG_OPTION_USE_ZLIB
FT_LOCAL( FT_Error )
woff_open_font( FT_Stream stream,
TT_Face face );
+#endif
+
FT_END_HEADER
#endif /* SFWOFF_H_ */
diff --git a/thirdparty/freetype/src/sfnt/sfwoff2.c b/thirdparty/freetype/src/sfnt/sfwoff2.c
index 5c8202f823..5ee8dea28a 100644
--- a/thirdparty/freetype/src/sfnt/sfwoff2.c
+++ b/thirdparty/freetype/src/sfnt/sfwoff2.c
@@ -4,7 +4,7 @@
*
* WOFF2 format management (base).
*
- * Copyright (C) 2019-2020 by
+ * Copyright (C) 2019-2021 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -26,8 +26,6 @@
#include <brotli/decode.h>
-#endif
-
/**************************************************************************
*
@@ -101,15 +99,15 @@
}
- FT_CALLBACK_DEF( int )
+ FT_COMPARE_DEF( int )
compare_tags( const void* a,
const void* b )
{
WOFF2_Table table1 = *(WOFF2_Table*)a;
WOFF2_Table table2 = *(WOFF2_Table*)b;
- FT_ULong tag1 = table1->Tag;
- FT_ULong tag2 = table2->Tag;
+ FT_Tag tag1 = table1->Tag;
+ FT_Tag tag2 = table2->Tag;
if ( tag1 > tag2 )
@@ -316,8 +314,6 @@
const FT_Byte* src,
FT_ULong src_size )
{
-#ifdef FT_CONFIG_OPTION_USE_BROTLI
-
/* this cast is only of importance on 32bit systems; */
/* we don't validate it */
FT_Offset uncompressed_size = (FT_Offset)dst_size;
@@ -338,20 +334,13 @@
FT_TRACE2(( "woff2_decompress: Brotli stream decompressed.\n" ));
return FT_Err_Ok;
-
-#else /* !FT_CONFIG_OPTION_USE_BROTLI */
-
- FT_ERROR(( "woff2_decompress: Brotli support not available.\n" ));
- return FT_THROW( Unimplemented_Feature );
-
-#endif /* !FT_CONFIG_OPTION_USE_BROTLI */
}
static WOFF2_Table
find_table( WOFF2_Table* tables,
FT_UShort num_tables,
- FT_ULong tag )
+ FT_Tag tag )
{
FT_Int i;
@@ -790,7 +779,7 @@
goto Fail;
loca_buf_size = loca_values_size * offset_size;
- if ( FT_NEW_ARRAY( loca_buf, loca_buf_size ) )
+ if ( FT_QNEW_ARRAY( loca_buf, loca_buf_size ) )
goto Fail;
dst = loca_buf;
@@ -1852,11 +1841,10 @@
FT_NEW_ARRAY( indices, woff2.num_tables ) )
goto Exit;
- FT_TRACE2((
- "\n"
- " tag flags transform origLen transformLen offset\n"
- " -----------------------------------------------------------\n" ));
- /* " XXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX" */
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " tag flags transform origLen transformLen offset\n" ));
+ FT_TRACE2(( " -----------------------------------------------------------\n" ));
+ /* " XXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX XXXXXXXX" */
for ( nn = 0; nn < woff2.num_tables; nn++ )
{
@@ -2119,8 +2107,8 @@
/* Create a temporary array. */
- if ( FT_NEW_ARRAY( temp_indices,
- ttc_font->num_tables ) )
+ if ( FT_QNEW_ARRAY( temp_indices,
+ ttc_font->num_tables ) )
goto Exit;
FT_TRACE4(( "Storing tables for TTC face index %d.\n", face_index ));
@@ -2128,9 +2116,9 @@
temp_indices[nn] = indices[ttc_font->table_indices[nn]];
/* Resize array to required size. */
- if ( FT_RENEW_ARRAY( indices,
- woff2.num_tables,
- ttc_font->num_tables ) )
+ if ( FT_QRENEW_ARRAY( indices,
+ woff2.num_tables,
+ ttc_font->num_tables ) )
goto Exit;
for ( nn = 0; nn < ttc_font->num_tables; nn++ )
@@ -2170,8 +2158,8 @@
}
/* Write sfnt header. */
- if ( FT_ALLOC( sfnt, sfnt_size ) ||
- FT_NEW( sfnt_stream ) )
+ if ( FT_QALLOC( sfnt, sfnt_size ) ||
+ FT_NEW( sfnt_stream ) )
goto Exit;
sfnt_header = sfnt;
@@ -2209,6 +2197,25 @@
sizeof ( WOFF2_Table ),
compare_tags );
+ /* reject fonts that have multiple tables with the same tag */
+ for ( nn = 1; nn < woff2.num_tables; nn++ )
+ {
+ FT_Tag tag = indices[nn]->Tag;
+
+
+ if ( tag == indices[nn - 1]->Tag )
+ {
+ FT_ERROR(( "woff2_open_font:"
+ " multiple tables with tag `%c%c%c%c'.\n",
+ (FT_Char)( tag >> 24 ),
+ (FT_Char)( tag >> 16 ),
+ (FT_Char)( tag >> 8 ),
+ (FT_Char)( tag ) ));
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+ }
+
if ( woff2.uncompressed_size < 1 )
{
error = FT_THROW( Invalid_Table );
@@ -2223,8 +2230,8 @@
}
/* Allocate memory for uncompressed table data. */
- if ( FT_ALLOC( uncompressed_buf, woff2.uncompressed_size ) ||
- FT_FRAME_ENTER( woff2.totalCompressedSize ) )
+ if ( FT_QALLOC( uncompressed_buf, woff2.uncompressed_size ) ||
+ FT_FRAME_ENTER( woff2.totalCompressedSize ) )
goto Exit;
/* Uncompress the stream. */
@@ -2333,5 +2340,12 @@
#undef BBOX_STREAM
#undef INSTRUCTION_STREAM
+#else /* !FT_CONFIG_OPTION_USE_BROTLI */
+
+ /* ANSI C doesn't like empty source files */
+ typedef int _sfwoff2_dummy;
+
+#endif /* !FT_CONFIG_OPTION_USE_BROTLI */
+
/* END */
diff --git a/thirdparty/freetype/src/sfnt/sfwoff2.h b/thirdparty/freetype/src/sfnt/sfwoff2.h
index 798f66bd0a..fa78b02429 100644
--- a/thirdparty/freetype/src/sfnt/sfwoff2.h
+++ b/thirdparty/freetype/src/sfnt/sfwoff2.h
@@ -4,7 +4,7 @@
*
* WOFFF2 format management (specification).
*
- * Copyright (C) 2019-2020 by
+ * Copyright (C) 2019-2021 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -26,6 +26,7 @@
FT_BEGIN_HEADER
+#ifdef FT_CONFIG_OPTION_USE_BROTLI
/* Leave the first byte open to store `flag_byte'. */
#define WOFF2_FLAGS_TRANSFORM 1 << 8
@@ -66,6 +67,7 @@ FT_BEGIN_HEADER
FT_Int* face_index,
FT_Long* num_faces );
+#endif /* FT_CONFIG_OPTION_USE_BROTLI */
FT_END_HEADER
diff --git a/thirdparty/freetype/src/sfnt/ttbdf.c b/thirdparty/freetype/src/sfnt/ttbdf.c
index a287d3afc4..b8d9473a63 100644
--- a/thirdparty/freetype/src/sfnt/ttbdf.c
+++ b/thirdparty/freetype/src/sfnt/ttbdf.c
@@ -4,7 +4,7 @@
*
* TrueType and OpenType embedded BDF properties (body).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttbdf.h b/thirdparty/freetype/src/sfnt/ttbdf.h
index e60c01cb8b..91271d916f 100644
--- a/thirdparty/freetype/src/sfnt/ttbdf.h
+++ b/thirdparty/freetype/src/sfnt/ttbdf.h
@@ -4,7 +4,7 @@
*
* TrueType and OpenType embedded BDF properties (specification).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttcmap.c b/thirdparty/freetype/src/sfnt/ttcmap.c
index 556a712199..b369d83788 100644
--- a/thirdparty/freetype/src/sfnt/ttcmap.c
+++ b/thirdparty/freetype/src/sfnt/ttcmap.c
@@ -4,7 +4,7 @@
*
* TrueType character mapping table (cmap) support (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -916,6 +916,16 @@
length = (FT_UInt)( valid->limit - table );
}
+ /* it also happens that the `length' field is too small; */
+ /* this is easy to correct */
+ if ( length < (FT_UInt)( valid->limit - table ) )
+ {
+ if ( valid->level >= FT_VALIDATE_PARANOID )
+ FT_INVALID_DATA;
+
+ length = (FT_UInt)( valid->limit - table );
+ }
+
if ( length < 16 )
FT_INVALID_TOO_SHORT;
diff --git a/thirdparty/freetype/src/sfnt/ttcmap.h b/thirdparty/freetype/src/sfnt/ttcmap.h
index c7d7c21d2c..504fc951c4 100644
--- a/thirdparty/freetype/src/sfnt/ttcmap.h
+++ b/thirdparty/freetype/src/sfnt/ttcmap.h
@@ -4,7 +4,7 @@
*
* TrueType character mapping table (cmap) support (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttcmapc.h b/thirdparty/freetype/src/sfnt/ttcmapc.h
index 2e4ce5075b..4e6cd46ba8 100644
--- a/thirdparty/freetype/src/sfnt/ttcmapc.h
+++ b/thirdparty/freetype/src/sfnt/ttcmapc.h
@@ -4,7 +4,7 @@
*
* TT CMAP classes definitions (specification only).
*
- * Copyright (C) 2009-2020 by
+ * Copyright (C) 2009-2021 by
* Oran Agra and Mickey Gabel.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttcolr.c b/thirdparty/freetype/src/sfnt/ttcolr.c
index 9025e356ce..8f5cc8bcd1 100644
--- a/thirdparty/freetype/src/sfnt/ttcolr.c
+++ b/thirdparty/freetype/src/sfnt/ttcolr.c
@@ -4,8 +4,8 @@
*
* TrueType and OpenType colored glyph layer support (body).
*
- * Copyright (C) 2018-2020 by
- * David Turner, Robert Wilhelm, and Werner Lemberg.
+ * Copyright (C) 2018-2021 by
+ * David Turner, Robert Wilhelm, Dominik Röttsches, and Werner Lemberg.
*
* Originally written by Shao Yu Zhang <shaozhang@fb.com>.
*
@@ -27,10 +27,12 @@
*/
+#include <freetype/internal/ftcalc.h>
#include <freetype/internal/ftdebug.h>
#include <freetype/internal/ftstream.h>
#include <freetype/tttags.h>
#include <freetype/ftcolor.h>
+#include <freetype/config/integer-types.h>
#ifdef TT_CONFIG_OPTION_COLOR_LAYERS
@@ -39,12 +41,27 @@
/* NOTE: These are the table sizes calculated through the specs. */
-#define BASE_GLYPH_SIZE 6U
-#define LAYER_SIZE 4U
-#define COLR_HEADER_SIZE 14U
+#define BASE_GLYPH_SIZE 6U
+#define BASE_GLYPH_PAINT_RECORD_SIZE 6U
+#define LAYER_V1_LIST_PAINT_OFFSET_SIZE 4U
+#define LAYER_V1_LIST_NUM_LAYERS_SIZE 4U
+#define COLOR_STOP_SIZE 6U
+#define LAYER_SIZE 4U
+#define COLR_HEADER_SIZE 14U
- typedef struct BaseGlyphRecord_
+ typedef enum FT_PaintFormat_Internal_
+ {
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER = 18,
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM = 20,
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER = 22,
+ FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER = 26,
+ FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER = 30
+
+ } FT_PaintFormat_Internal;
+
+
+ typedef struct BaseGlyphRecord_
{
FT_UShort gid;
FT_UShort first_layer_index;
@@ -53,7 +70,16 @@
} BaseGlyphRecord;
- typedef struct Colr_
+ typedef struct BaseGlyphV1Record_
+ {
+ FT_UShort gid;
+ /* Offset from start of BaseGlyphV1List, i.e., from base_glyphs_v1. */
+ FT_ULong paint_offset;
+
+ } BaseGlyphV1Record;
+
+
+ typedef struct Colr_
{
FT_UShort version;
FT_UShort num_base_glyphs;
@@ -62,7 +88,23 @@
FT_Byte* base_glyphs;
FT_Byte* layers;
- /* The memory which backs up the `COLR' table. */
+ FT_ULong num_base_glyphs_v1;
+ /* Points at beginning of BaseGlyphV1List. */
+ FT_Byte* base_glyphs_v1;
+
+ FT_ULong num_layers_v1;
+ FT_Byte* layers_v1;
+
+ FT_Byte* clip_list;
+
+ /*
+ * Paint tables start at the minimum of the end of the LayerList and the
+ * end of the BaseGlyphList. Record this location in a field here for
+ * safety checks when accessing paint tables.
+ */
+ FT_Byte* paints_start_v1;
+
+ /* The memory that backs up the `COLR' table. */
void* table;
FT_ULong table_size;
@@ -88,10 +130,14 @@
FT_Byte* table = NULL;
FT_Byte* p = NULL;
+ /* Needed for reading array lengths in referenced tables. */
+ FT_Byte* p1 = NULL;
Colr* colr = NULL;
FT_ULong base_glyph_offset, layer_offset;
+ FT_ULong base_glyphs_offset_v1, num_base_glyphs_v1;
+ FT_ULong layer_offset_v1, num_layers_v1, clip_list_offset;
FT_ULong table_size;
@@ -115,7 +161,7 @@
goto NoColr;
colr->version = FT_NEXT_USHORT( p );
- if ( colr->version != 0 )
+ if ( colr->version != 0 && colr->version != 1 )
goto InvalidTable;
colr->num_base_glyphs = FT_NEXT_USHORT( p );
@@ -135,6 +181,66 @@
if ( colr->num_layers * LAYER_SIZE > table_size - layer_offset )
goto InvalidTable;
+ if ( colr->version == 1 )
+ {
+ base_glyphs_offset_v1 = FT_NEXT_ULONG( p );
+
+ if ( base_glyphs_offset_v1 >= table_size )
+ goto InvalidTable;
+
+ p1 = (FT_Byte*)( table + base_glyphs_offset_v1 );
+ num_base_glyphs_v1 = FT_PEEK_ULONG( p1 );
+
+ if ( num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE >
+ table_size - base_glyphs_offset_v1 )
+ goto InvalidTable;
+
+ colr->num_base_glyphs_v1 = num_base_glyphs_v1;
+ colr->base_glyphs_v1 = p1;
+
+ layer_offset_v1 = FT_NEXT_ULONG( p );
+
+ if ( layer_offset_v1 >= table_size )
+ goto InvalidTable;
+
+ if ( layer_offset_v1 )
+ {
+ p1 = (FT_Byte*)( table + layer_offset_v1 );
+ num_layers_v1 = FT_PEEK_ULONG( p1 );
+
+ if ( num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE >
+ table_size - layer_offset_v1 )
+ goto InvalidTable;
+
+ colr->num_layers_v1 = num_layers_v1;
+ colr->layers_v1 = p1;
+
+ colr->paints_start_v1 =
+ FT_MIN( colr->base_glyphs_v1 +
+ colr->num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE,
+ colr->layers_v1 +
+ colr->num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE );
+ }
+ else
+ {
+ colr->num_layers_v1 = 0;
+ colr->layers_v1 = 0;
+ colr->paints_start_v1 =
+ colr->base_glyphs_v1 +
+ colr->num_base_glyphs_v1 * BASE_GLYPH_PAINT_RECORD_SIZE;
+ }
+
+ clip_list_offset = FT_NEXT_ULONG( p );
+
+ if ( clip_list_offset >= table_size )
+ goto InvalidTable;
+
+ if ( clip_list_offset )
+ colr->clip_list = (FT_Byte*)( table + clip_list_offset );
+ else
+ colr->clip_list = 0;
+ }
+
colr->base_glyphs = (FT_Byte*)( table + base_glyph_offset );
colr->layers = (FT_Byte*)( table + layer_offset );
colr->table = table;
@@ -174,17 +280,17 @@
static FT_Bool
find_base_glyph_record( FT_Byte* base_glyph_begin,
- FT_Int num_base_glyph,
+ FT_UInt num_base_glyph,
FT_UInt glyph_id,
BaseGlyphRecord* record )
{
- FT_Int min = 0;
- FT_Int max = num_base_glyph - 1;
+ FT_UInt min = 0;
+ FT_UInt max = num_base_glyph;
- while ( min <= max )
+ while ( min < max )
{
- FT_Int mid = min + ( max - min ) / 2;
+ FT_UInt mid = min + ( max - min ) / 2;
FT_Byte* p = base_glyph_begin + mid * BASE_GLYPH_SIZE;
FT_UShort gid = FT_NEXT_USHORT( p );
@@ -193,7 +299,7 @@
if ( gid < glyph_id )
min = mid + 1;
else if (gid > glyph_id )
- max = mid - 1;
+ max = mid;
else
{
record->gid = gid;
@@ -265,6 +371,747 @@
}
+ static FT_Bool
+ read_color_line( FT_Byte* color_line_p,
+ FT_ColorLine *colorline )
+ {
+ FT_Byte* p = color_line_p;
+ FT_PaintExtend paint_extend;
+
+
+ paint_extend = (FT_PaintExtend)FT_NEXT_BYTE( p );
+ if ( paint_extend > FT_COLR_PAINT_EXTEND_REFLECT )
+ return 0;
+
+ colorline->extend = paint_extend;
+
+ colorline->color_stop_iterator.num_color_stops = FT_NEXT_USHORT( p );
+ colorline->color_stop_iterator.p = p;
+ colorline->color_stop_iterator.current_color_stop = 0;
+
+ return 1;
+ }
+
+
+ /*
+ * Read a paint offset for `FT_Paint*` objects that have them and check
+ * whether it is within reasonable limits within the font and the COLR
+ * table.
+ *
+ * Return 1 on success, 0 on failure.
+ */
+ static FT_Bool
+ get_child_table_pointer ( Colr* colr,
+ FT_Byte* paint_base,
+ FT_Byte** p,
+ FT_Byte** child_table_pointer )
+ {
+ FT_UInt32 paint_offset;
+ FT_Byte* child_table_p;
+
+
+ if ( !child_table_pointer )
+ return 0;
+
+ paint_offset = FT_NEXT_UOFF3( *p );
+ if ( !paint_offset )
+ return 0;
+
+ child_table_p = (FT_Byte*)( paint_base + paint_offset );
+
+ if ( child_table_p < colr->paints_start_v1 ||
+ child_table_p >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ *child_table_pointer = child_table_p;
+ return 1;
+ }
+
+
+ static FT_Bool
+ read_paint( Colr* colr,
+ FT_Byte* p,
+ FT_COLR_Paint* apaint )
+ {
+ FT_Byte* paint_base = p;
+ FT_Byte* child_table_p = NULL;
+
+
+ if ( !p || !colr || !colr->table )
+ return 0;
+
+ if ( p < colr->paints_start_v1 ||
+ p >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ apaint->format = (FT_PaintFormat)FT_NEXT_BYTE( p );
+
+ if ( apaint->format >= FT_COLR_PAINT_FORMAT_MAX )
+ return 0;
+
+ if ( apaint->format == FT_COLR_PAINTFORMAT_COLR_LAYERS )
+ {
+ /* Initialize layer iterator/ */
+ FT_Byte num_layers;
+ FT_UInt32 first_layer_index;
+
+
+ num_layers = FT_NEXT_BYTE( p );
+ if ( num_layers > colr->num_layers_v1 )
+ return 0;
+
+ first_layer_index = FT_NEXT_ULONG( p );
+ if ( first_layer_index + num_layers > colr->num_layers_v1 )
+ return 0;
+
+ apaint->u.colr_layers.layer_iterator.num_layers = num_layers;
+ apaint->u.colr_layers.layer_iterator.layer = 0;
+ /* TODO: Check whether pointer is outside colr? */
+ apaint->u.colr_layers.layer_iterator.p =
+ colr->layers_v1 +
+ LAYER_V1_LIST_NUM_LAYERS_SIZE +
+ LAYER_V1_LIST_PAINT_OFFSET_SIZE * first_layer_index;
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_SOLID )
+ {
+ apaint->u.solid.color.palette_index = FT_NEXT_USHORT( p );
+ apaint->u.solid.color.alpha = FT_NEXT_SHORT( p );
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_COLR_GLYPH )
+ {
+ apaint->u.colr_glyph.glyphID = FT_NEXT_USHORT( p );
+
+ return 1;
+ }
+
+ /*
+ * Grouped below here are all paint formats that have an offset to a
+ * child paint table as the first entry (for example, a color line or a
+ * child paint table). Retrieve that and determine whether that paint
+ * offset is valid first.
+ */
+
+ if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) )
+ return 0;
+
+ if ( apaint->format == FT_COLR_PAINTFORMAT_LINEAR_GRADIENT )
+ {
+ if ( !read_color_line( child_table_p,
+ &apaint->u.linear_gradient.colorline ) )
+ return 0;
+
+ /*
+ * In order to support variations expose these as FT_Fixed 16.16 values so
+ * that we can support fractional values after interpolation.
+ */
+ apaint->u.linear_gradient.p0.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.linear_gradient.p0.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.linear_gradient.p1.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.linear_gradient.p1.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.linear_gradient.p2.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.linear_gradient.p2.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_RADIAL_GRADIENT )
+ {
+ if ( !read_color_line( child_table_p,
+ &apaint->u.radial_gradient.colorline ) )
+ return 0;
+
+ apaint->u.radial_gradient.c0.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.radial_gradient.c0.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ apaint->u.radial_gradient.r0 = FT_NEXT_USHORT( p ) << 16;
+
+ apaint->u.radial_gradient.c1.x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.radial_gradient.c1.y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ apaint->u.radial_gradient.r1 = FT_NEXT_USHORT( p ) << 16;
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_SWEEP_GRADIENT )
+ {
+ if ( !read_color_line( child_table_p,
+ &apaint->u.sweep_gradient.colorline ) )
+ return 0;
+
+ apaint->u.sweep_gradient.center.x =
+ INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.sweep_gradient.center.y =
+ INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ apaint->u.sweep_gradient.start_angle =
+ F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.sweep_gradient.end_angle =
+ F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ return 1;
+ }
+
+ if ( apaint->format == FT_COLR_PAINTFORMAT_GLYPH )
+ {
+ apaint->u.glyph.paint.p = child_table_p;
+ apaint->u.glyph.paint.insert_root_transform = 0;
+ apaint->u.glyph.glyphID = FT_NEXT_USHORT( p );
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSFORM )
+ {
+ apaint->u.transform.paint.p = child_table_p;
+ apaint->u.transform.paint.insert_root_transform = 0;
+
+ if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) )
+ return 0;
+
+ p = child_table_p;
+
+ /*
+ * The following matrix coefficients are encoded as
+ * OpenType 16.16 fixed-point values.
+ */
+ apaint->u.transform.affine.xx = FT_NEXT_LONG( p );
+ apaint->u.transform.affine.yx = FT_NEXT_LONG( p );
+ apaint->u.transform.affine.xy = FT_NEXT_LONG( p );
+ apaint->u.transform.affine.yy = FT_NEXT_LONG( p );
+ apaint->u.transform.affine.dx = FT_NEXT_LONG( p );
+ apaint->u.transform.affine.dy = FT_NEXT_LONG( p );
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_TRANSLATE )
+ {
+ apaint->u.translate.paint.p = child_table_p;
+ apaint->u.translate.paint.insert_root_transform = 0;
+
+ apaint->u.translate.dx = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.translate.dy = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ return 1;
+ }
+
+ else if ( apaint->format ==
+ FT_COLR_PAINTFORMAT_SCALE ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER )
+ {
+ apaint->u.scale.paint.p = child_table_p;
+ apaint->u.scale.paint.insert_root_transform = 0;
+
+ /* All scale paints get at least one scale value. */
+ apaint->u.scale.scale_x = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ /* Non-uniform ones read an extra y value. */
+ if ( apaint->format ==
+ FT_COLR_PAINTFORMAT_SCALE ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER )
+ apaint->u.scale.scale_y = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+ else
+ apaint->u.scale.scale_y = apaint->u.scale.scale_x;
+
+ /* Scale paints that have a center read center coordinates, */
+ /* otherwise the center is (0,0). */
+ if ( (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_CENTER ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SCALE_UNIFORM_CENTER )
+ {
+ apaint->u.scale.center_x = INT_TO_FIXED( FT_NEXT_SHORT ( p ) );
+ apaint->u.scale.center_y = INT_TO_FIXED( FT_NEXT_SHORT ( p ) );
+ }
+ else
+ {
+ apaint->u.scale.center_x = 0;
+ apaint->u.scale.center_y = 0;
+ }
+
+ /* FT 'COLR' v1 API output format always returns fully defined */
+ /* structs; we thus set the format to the public API value. */
+ apaint->format = FT_COLR_PAINTFORMAT_SCALE;
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_ROTATE ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER )
+ {
+ apaint->u.rotate.paint.p = child_table_p;
+ apaint->u.rotate.paint.insert_root_transform = 0;
+
+ apaint->u.rotate.angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ if ( (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_ROTATE_CENTER )
+ {
+ apaint->u.rotate.center_x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.rotate.center_y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ }
+ else
+ {
+ apaint->u.rotate.center_x = 0;
+ apaint->u.rotate.center_y = 0;
+ }
+
+ apaint->format = FT_COLR_PAINTFORMAT_ROTATE;
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_SKEW ||
+ (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER )
+ {
+ apaint->u.skew.paint.p = child_table_p;
+ apaint->u.skew.paint.insert_root_transform = 0;
+
+ apaint->u.skew.x_skew_angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.skew.y_skew_angle = F2DOT14_TO_FIXED( FT_NEXT_SHORT( p ) );
+
+ if ( (FT_PaintFormat_Internal)apaint->format ==
+ FT_COLR_PAINTFORMAT_INTERNAL_SKEW_CENTER )
+ {
+ apaint->u.skew.center_x = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ apaint->u.skew.center_y = INT_TO_FIXED( FT_NEXT_SHORT( p ) );
+ }
+ else
+ {
+ apaint->u.skew.center_x = 0;
+ apaint->u.skew.center_y = 0;
+ }
+
+ apaint->format = FT_COLR_PAINTFORMAT_SKEW;
+
+ return 1;
+ }
+
+ else if ( apaint->format == FT_COLR_PAINTFORMAT_COMPOSITE )
+ {
+ FT_UInt composite_mode;
+
+
+ apaint->u.composite.source_paint.p = child_table_p;
+ apaint->u.composite.source_paint.insert_root_transform = 0;
+
+ composite_mode = FT_NEXT_BYTE( p );
+ if ( composite_mode >= FT_COLR_COMPOSITE_MAX )
+ return 0;
+
+ apaint->u.composite.composite_mode = (FT_Composite_Mode)composite_mode;
+
+ if ( !get_child_table_pointer( colr, paint_base, &p, &child_table_p ) )
+ return 0;
+
+ apaint->u.composite.backdrop_paint.p =
+ child_table_p;
+ apaint->u.composite.backdrop_paint.insert_root_transform =
+ 0;
+
+ return 1;
+ }
+
+ return 0;
+ }
+
+
+ static FT_Bool
+ find_base_glyph_v1_record( FT_Byte * base_glyph_begin,
+ FT_UInt num_base_glyph,
+ FT_UInt glyph_id,
+ BaseGlyphV1Record *record )
+ {
+ FT_UInt min = 0;
+ FT_UInt max = num_base_glyph;
+
+
+ while ( min < max )
+ {
+ FT_UInt mid = min + ( max - min ) / 2;
+
+ /*
+ * `base_glyph_begin` is the beginning of `BaseGlyphV1List`;
+ * skip `numBaseGlyphV1Records` by adding 4 to start binary search
+ * in the array of `BaseGlyphV1Record`.
+ */
+ FT_Byte *p = base_glyph_begin + 4 + mid * BASE_GLYPH_PAINT_RECORD_SIZE;
+
+ FT_UShort gid = FT_NEXT_USHORT( p );
+
+
+ if ( gid < glyph_id )
+ min = mid + 1;
+ else if (gid > glyph_id )
+ max = mid;
+ else
+ {
+ record->gid = gid;
+ record->paint_offset = FT_NEXT_ULONG ( p );
+ return 1;
+ }
+ }
+
+ return 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ tt_face_get_colr_glyph_paint( TT_Face face,
+ FT_UInt base_glyph,
+ FT_Color_Root_Transform root_transform,
+ FT_OpaquePaint* opaque_paint )
+ {
+ Colr* colr = (Colr*)face->colr;
+ BaseGlyphV1Record base_glyph_v1_record;
+ FT_Byte* p;
+
+ if ( !colr || !colr->table )
+ return 0;
+
+ if ( colr->version < 1 || !colr->num_base_glyphs_v1 ||
+ !colr->base_glyphs_v1 )
+ return 0;
+
+ if ( opaque_paint->p )
+ return 0;
+
+ if ( !find_base_glyph_v1_record( colr->base_glyphs_v1,
+ colr->num_base_glyphs_v1,
+ base_glyph,
+ &base_glyph_v1_record ) )
+ return 0;
+
+ if ( !base_glyph_v1_record.paint_offset ||
+ base_glyph_v1_record.paint_offset > colr->table_size )
+ return 0;
+
+ p = (FT_Byte*)( colr->base_glyphs_v1 +
+ base_glyph_v1_record.paint_offset );
+ if ( p >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ opaque_paint->p = p;
+
+ if ( root_transform == FT_COLOR_INCLUDE_ROOT_TRANSFORM )
+ opaque_paint->insert_root_transform = 1;
+ else
+ opaque_paint->insert_root_transform = 0;
+
+ return 1;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ tt_face_get_color_glyph_clipbox( TT_Face face,
+ FT_UInt base_glyph,
+ FT_ClipBox* clip_box )
+ {
+ Colr* colr;
+
+ FT_Byte *p, *p1, *clip_base;
+
+ FT_Byte clip_list_format;
+ FT_ULong num_clip_boxes, i;
+ FT_UShort gid_start, gid_end;
+ FT_UInt32 clip_box_offset;
+ FT_Byte format;
+
+ const FT_Byte num_corners = 4;
+ FT_Vector corners[4];
+ FT_Byte j;
+ FT_BBox font_clip_box;
+
+
+ colr = (Colr*)face->colr;
+ if ( !colr )
+ return 0;
+
+ if ( !colr->clip_list )
+ return 0;
+
+ p = colr->clip_list;
+
+ clip_base = p;
+ clip_list_format = FT_NEXT_BYTE ( p );
+
+ /* Format byte used here to be able to upgrade ClipList for >16bit */
+ /* glyph ids; for now we can expect it to be 0. */
+ if ( !( clip_list_format == 1 ) )
+ return 0;
+
+ num_clip_boxes = FT_NEXT_ULONG( p );
+
+ for ( i = 0; i < num_clip_boxes; ++i )
+ {
+ gid_start = FT_NEXT_USHORT( p );
+ gid_end = FT_NEXT_USHORT( p );
+ clip_box_offset = FT_NEXT_UOFF3( p );
+
+ if ( base_glyph >= gid_start && base_glyph <= gid_end )
+ {
+ p1 = (FT_Byte*)( clip_base + clip_box_offset );
+
+ if ( p1 >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ format = FT_NEXT_BYTE( p1 );
+
+ if ( format > 1 )
+ return 0;
+
+ /* `face->root.size->metrics.x_scale` and `y_scale` are factors */
+ /* that scale a font unit value in integers to a 26.6 fixed value */
+ /* according to the requested size, see for example */
+ /* `ft_recompute_scaled_metrics`. */
+ font_clip_box.xMin = FT_MulFix( FT_NEXT_SHORT( p1 ),
+ face->root.size->metrics.x_scale );
+ font_clip_box.yMin = FT_MulFix( FT_NEXT_SHORT( p1 ),
+ face->root.size->metrics.x_scale );
+ font_clip_box.xMax = FT_MulFix( FT_NEXT_SHORT( p1 ),
+ face->root.size->metrics.x_scale );
+ font_clip_box.yMax = FT_MulFix( FT_NEXT_SHORT( p1 ),
+ face->root.size->metrics.x_scale );
+
+ /* Make 4 corner points (xMin, yMin), (xMax, yMax) and transform */
+ /* them. If we we would only transform two corner points and */
+ /* span a rectangle based on those, the rectangle may become too */
+ /* small to cover the glyph. */
+ corners[0].x = font_clip_box.xMin;
+ corners[1].x = font_clip_box.xMin;
+ corners[2].x = font_clip_box.xMax;
+ corners[3].x = font_clip_box.xMax;
+
+ corners[0].y = font_clip_box.yMin;
+ corners[1].y = font_clip_box.yMax;
+ corners[2].y = font_clip_box.yMax;
+ corners[3].y = font_clip_box.yMin;
+
+ for ( j = 0; j < num_corners; ++j )
+ {
+ if ( face->root.internal->transform_flags & 1 )
+ FT_Vector_Transform( &corners[j],
+ &face->root.internal->transform_matrix );
+
+ if ( face->root.internal->transform_flags & 2 )
+ {
+ corners[j].x += face->root.internal->transform_delta.x;
+ corners[j].y += face->root.internal->transform_delta.y;
+ }
+ }
+
+ clip_box->bottom_left = corners[0];
+ clip_box->top_left = corners[1];
+ clip_box->top_right = corners[2];
+ clip_box->bottom_right = corners[3];
+
+ return 1;
+ }
+ }
+
+ return 0;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ tt_face_get_paint_layers( TT_Face face,
+ FT_LayerIterator* iterator,
+ FT_OpaquePaint* opaque_paint )
+ {
+ FT_Byte* p = NULL;
+ FT_Byte* p_first_layer = NULL;
+ FT_Byte* p_paint = NULL;
+ FT_UInt32 paint_offset;
+
+ Colr* colr;
+
+
+ if ( iterator->layer == iterator->num_layers )
+ return 0;
+
+ colr = (Colr*)face->colr;
+ if ( !colr )
+ return 0;
+
+ /*
+ * We have an iterator pointing at a paint offset as part of the
+ * `paintOffset` array in `LayerV1List`.
+ */
+ p = iterator->p;
+
+ /*
+ * First ensure that p is within COLRv1.
+ */
+ if ( p < colr->layers_v1 ||
+ p >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ /*
+ * Do a cursor sanity check of the iterator. Counting backwards from
+ * where it stands, we need to end up at a position after the beginning
+ * of the `LayerV1List` table and not after the end of the
+ * `LayerV1List`.
+ */
+ p_first_layer = p -
+ iterator->layer * LAYER_V1_LIST_PAINT_OFFSET_SIZE -
+ LAYER_V1_LIST_NUM_LAYERS_SIZE;
+ if ( p_first_layer < (FT_Byte*)colr->layers_v1 )
+ return 0;
+ if ( p_first_layer >= (FT_Byte*)(
+ colr->layers_v1 + LAYER_V1_LIST_NUM_LAYERS_SIZE +
+ colr->num_layers_v1 * LAYER_V1_LIST_PAINT_OFFSET_SIZE ) )
+ return 0;
+
+ paint_offset =
+ FT_NEXT_ULONG( p );
+ opaque_paint->insert_root_transform =
+ 0;
+
+ p_paint = (FT_Byte*)( colr->layers_v1 + paint_offset );
+
+ if ( p_paint < colr->paints_start_v1 ||
+ p_paint >= ( (FT_Byte*)colr->table + colr->table_size ) )
+ return 0;
+
+ opaque_paint->p = p_paint;
+
+ iterator->p = p;
+
+ iterator->layer++;
+
+ return 1;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ tt_face_get_colorline_stops( TT_Face face,
+ FT_ColorStop* color_stop,
+ FT_ColorStopIterator *iterator )
+ {
+ Colr* colr = (Colr*)face->colr;
+
+ FT_Byte* p;
+
+
+ if ( !colr || !colr->table )
+ return 0;
+
+ if ( iterator->current_color_stop >= iterator->num_color_stops )
+ return 0;
+
+ if ( iterator->p +
+ ( ( iterator->num_color_stops - iterator->current_color_stop ) *
+ COLOR_STOP_SIZE ) >
+ ( (FT_Byte *)colr->table + colr->table_size ) )
+ return 0;
+
+ /* Iterator points at first `ColorStop` of `ColorLine`. */
+ p = iterator->p;
+
+ color_stop->stop_offset = FT_NEXT_SHORT( p );
+
+ color_stop->color.palette_index = FT_NEXT_USHORT( p );
+
+ color_stop->color.alpha = FT_NEXT_SHORT( p );
+
+ iterator->p = p;
+ iterator->current_color_stop++;
+
+ return 1;
+ }
+
+
+ FT_LOCAL_DEF( FT_Bool )
+ tt_face_get_paint( TT_Face face,
+ FT_OpaquePaint opaque_paint,
+ FT_COLR_Paint* paint )
+ {
+ Colr* colr = (Colr*)face->colr;
+ FT_OpaquePaint next_paint;
+ FT_Matrix ft_root_scale;
+
+ if ( !colr || !colr->base_glyphs_v1 || !colr->table )
+ return 0;
+
+ if ( opaque_paint.insert_root_transform )
+ {
+ /* 'COLR' v1 glyph information is returned in unscaled coordinates,
+ * i.e., `FT_Size` is not applied or multiplied into the values. When
+ * client applications draw color glyphs, they can request to include
+ * a top-level transform, which includes the active `x_scale` and
+ * `y_scale` information for scaling the glyph, as well the additional
+ * transform and translate configured through `FT_Set_Transform`.
+ * This allows client applications to apply this top-level transform
+ * to the graphics context first and only once, then have gradient and
+ * contour scaling applied correctly when performing the additional
+ * drawing operations for subsequenct paints. Prepare this initial
+ * transform here.
+ */
+ paint->format = FT_COLR_PAINTFORMAT_TRANSFORM;
+
+ next_paint.p = opaque_paint.p;
+ next_paint.insert_root_transform = 0;
+ paint->u.transform.paint = next_paint;
+
+ /* `x_scale` and `y_scale` are in 26.6 format, representing the scale
+ * factor to get from font units to requested size. However, expected
+ * return values are in 16.16, so we shift accordingly with rounding.
+ */
+ ft_root_scale.xx = ( face->root.size->metrics.x_scale + 32 ) >> 6;
+ ft_root_scale.xy = 0;
+ ft_root_scale.yx = 0;
+ ft_root_scale.yy = ( face->root.size->metrics.y_scale + 32 ) >> 6;
+
+ if ( face->root.internal->transform_flags & 1 )
+ FT_Matrix_Multiply( &face->root.internal->transform_matrix,
+ &ft_root_scale );
+
+ paint->u.transform.affine.xx = ft_root_scale.xx;
+ paint->u.transform.affine.xy = ft_root_scale.xy;
+ paint->u.transform.affine.yx = ft_root_scale.yx;
+ paint->u.transform.affine.yy = ft_root_scale.yy;
+
+ /* The translation is specified in 26.6 format and, according to the
+ * documentation of `FT_Set_Translate`, is performed on the character
+ * size given in the last call to `FT_Set_Char_Size`. The
+ * 'PaintTransform' paint table's `FT_Affine23` format expects
+ * values in 16.16 format, thus we need to shift by 10 bits.
+ */
+ if ( face->root.internal->transform_flags & 2 )
+ {
+ paint->u.transform.affine.dx =
+ face->root.internal->transform_delta.x * ( 1 << 10 );
+ paint->u.transform.affine.dy =
+ face->root.internal->transform_delta.y * ( 1 << 10 );
+ }
+ else
+ {
+ paint->u.transform.affine.dx = 0;
+ paint->u.transform.affine.dy = 0;
+ }
+
+ return 1;
+ }
+
+ return read_paint( colr, opaque_paint.p, paint );
+ }
+
+
FT_LOCAL_DEF( FT_Error )
tt_face_colr_blend_layer( TT_Face face,
FT_UInt color_index,
diff --git a/thirdparty/freetype/src/sfnt/ttcolr.h b/thirdparty/freetype/src/sfnt/ttcolr.h
index 6412162669..b81e4cb958 100644
--- a/thirdparty/freetype/src/sfnt/ttcolr.h
+++ b/thirdparty/freetype/src/sfnt/ttcolr.h
@@ -4,7 +4,7 @@
*
* TrueType and OpenType colored glyph layer support (specification).
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Originally written by Shao Yu Zhang <shaozhang@fb.com>.
@@ -42,6 +42,32 @@ FT_BEGIN_HEADER
FT_UInt *acolor_index,
FT_LayerIterator* iterator );
+ FT_LOCAL( FT_Bool )
+ tt_face_get_colr_glyph_paint( TT_Face face,
+ FT_UInt base_glyph,
+ FT_Color_Root_Transform root_transform,
+ FT_OpaquePaint* paint );
+
+ FT_LOCAL( FT_Bool )
+ tt_face_get_color_glyph_clipbox( TT_Face face,
+ FT_UInt base_glyph,
+ FT_ClipBox* clip_box );
+
+ FT_LOCAL( FT_Bool )
+ tt_face_get_paint_layers( TT_Face face,
+ FT_LayerIterator* iterator,
+ FT_OpaquePaint* paint );
+
+ FT_LOCAL( FT_Bool )
+ tt_face_get_colorline_stops( TT_Face face,
+ FT_ColorStop* color_stop,
+ FT_ColorStopIterator* iterator );
+
+ FT_LOCAL( FT_Bool )
+ tt_face_get_paint( TT_Face face,
+ FT_OpaquePaint opaque_paint,
+ FT_COLR_Paint* paint );
+
FT_LOCAL( FT_Error )
tt_face_colr_blend_layer( TT_Face face,
FT_UInt color_index,
diff --git a/thirdparty/freetype/src/sfnt/ttcpal.c b/thirdparty/freetype/src/sfnt/ttcpal.c
index 9c514bafe5..a0d84bca3a 100644
--- a/thirdparty/freetype/src/sfnt/ttcpal.c
+++ b/thirdparty/freetype/src/sfnt/ttcpal.c
@@ -4,7 +4,7 @@
*
* TrueType and OpenType color palette support (body).
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Originally written by Shao Yu Zhang <shaozhang@fb.com>.
diff --git a/thirdparty/freetype/src/sfnt/ttcpal.h b/thirdparty/freetype/src/sfnt/ttcpal.h
index b544be696a..1c5586855b 100644
--- a/thirdparty/freetype/src/sfnt/ttcpal.h
+++ b/thirdparty/freetype/src/sfnt/ttcpal.h
@@ -4,7 +4,7 @@
*
* TrueType and OpenType color palette support (specification).
*
- * Copyright (C) 2018-2020 by
+ * Copyright (C) 2018-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Originally written by Shao Yu Zhang <shaozhang@fb.com>.
diff --git a/thirdparty/freetype/src/sfnt/ttkern.c b/thirdparty/freetype/src/sfnt/ttkern.c
index d4a70c7855..bb1922caf9 100644
--- a/thirdparty/freetype/src/sfnt/ttkern.c
+++ b/thirdparty/freetype/src/sfnt/ttkern.c
@@ -5,7 +5,7 @@
* Load the basic TrueType kerning table. This doesn't handle
* kerning data within the GPOS table at the moment.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttkern.h b/thirdparty/freetype/src/sfnt/ttkern.h
index f44b5bdeb0..3d8f1e8347 100644
--- a/thirdparty/freetype/src/sfnt/ttkern.h
+++ b/thirdparty/freetype/src/sfnt/ttkern.h
@@ -5,7 +5,7 @@
* Load the basic TrueType kerning table. This doesn't handle
* kerning data within the GPOS table at the moment.
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttload.c b/thirdparty/freetype/src/sfnt/ttload.c
index 4b46f41357..51416d80b4 100644
--- a/thirdparty/freetype/src/sfnt/ttload.c
+++ b/thirdparty/freetype/src/sfnt/ttload.c
@@ -5,7 +5,7 @@
* Load the basic TrueType tables, i.e., tables that can be either in
* TTF or OTF fonts (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -416,9 +416,9 @@
FT_FRAME_ENTER( sfnt.num_tables * 16L ) )
goto Exit;
- FT_TRACE2(( "\n"
- " tag offset length checksum\n"
- " ----------------------------------\n" ));
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " tag offset length checksum\n" ));
+ FT_TRACE2(( " ----------------------------------\n" ));
valid_entries = 0;
for ( nn = 0; nn < sfnt.num_tables; nn++ )
@@ -505,7 +505,8 @@
FT_FRAME_EXIT();
- FT_TRACE2(( "table directory loaded\n\n" ));
+ FT_TRACE2(( "table directory loaded\n" ));
+ FT_TRACE2(( "\n" ));
Exit:
return error;
@@ -794,8 +795,8 @@
if ( maxProfile->maxTwilightPoints > ( 0xFFFFU - 4 ) )
{
FT_TRACE0(( "tt_face_load_maxp:"
- " too much twilight points in `maxp' table;\n"
- " "
+ " too much twilight points in `maxp' table;\n" ));
+ FT_TRACE0(( " "
" some glyphs might be rendered incorrectly\n" ));
maxProfile->maxTwilightPoints = 0xFFFFU - 4;
@@ -836,6 +837,8 @@
FT_ULong table_pos, table_len;
FT_ULong storage_start, storage_limit;
TT_NameTable table;
+ TT_Name names = NULL;
+ TT_LangTag langTags = NULL;
static const FT_Frame_Field name_table_fields[] =
{
@@ -916,13 +919,13 @@
storage_start += 2 + 4 * table->numLangTagRecords;
/* allocate language tag records array */
- if ( FT_NEW_ARRAY( table->langTags, table->numLangTagRecords ) ||
- FT_FRAME_ENTER( table->numLangTagRecords * 4 ) )
+ if ( FT_QNEW_ARRAY( langTags, table->numLangTagRecords ) ||
+ FT_FRAME_ENTER( table->numLangTagRecords * 4 ) )
goto Exit;
/* load language tags */
{
- TT_LangTag entry = table->langTags;
+ TT_LangTag entry = langTags;
TT_LangTag limit = FT_OFFSET( entry, table->numLangTagRecords );
@@ -938,7 +941,13 @@
/* invalid entry; ignore it */
entry->stringLength = 0;
}
+
+ /* mark the string as not yet loaded */
+ entry->string = NULL;
}
+
+ table->langTags = langTags;
+ langTags = NULL;
}
FT_FRAME_EXIT();
@@ -947,14 +956,15 @@
}
/* allocate name records array */
- if ( FT_NEW_ARRAY( table->names, table->numNameRecords ) ||
- FT_FRAME_ENTER( table->numNameRecords * 12 ) )
+ if ( FT_QNEW_ARRAY( names, table->numNameRecords ) ||
+ FT_FRAME_ENTER( table->numNameRecords * 12 ) )
goto Exit;
/* load name records */
{
- TT_Name entry = table->names;
+ TT_Name entry = names;
FT_UInt count = table->numNameRecords;
+ FT_UInt valid = 0;
for ( ; count > 0; count-- )
@@ -987,15 +997,20 @@
}
}
+ /* mark the string as not yet converted */
+ entry->string = NULL;
+
+ valid++;
entry++;
}
/* reduce array size to the actually used elements */
- count = (FT_UInt)( entry - table->names );
- (void)FT_RENEW_ARRAY( table->names,
- table->numNameRecords,
- count );
- table->numNameRecords = count;
+ FT_MEM_QRENEW_ARRAY( names,
+ table->numNameRecords,
+ valid );
+ table->names = names;
+ names = NULL;
+ table->numNameRecords = valid;
}
FT_FRAME_EXIT();
@@ -1004,6 +1019,8 @@
face->num_names = (FT_UShort)table->numNameRecords;
Exit:
+ FT_FREE( names );
+ FT_FREE( langTags );
return error;
}
@@ -1311,6 +1328,12 @@
if ( FT_STREAM_READ_FIELDS( post_fields, post ) )
return error;
+ if ( post->FormatType != 0x00030000L &&
+ post->FormatType != 0x00025000L &&
+ post->FormatType != 0x00020000L &&
+ post->FormatType != 0x00010000L )
+ return FT_THROW( Invalid_Post_Table_Format );
+
/* we don't load the glyph names, we do that in another */
/* module (ttpost). */
@@ -1410,8 +1433,8 @@
FT_Error error;
FT_Memory memory = stream->memory;
- FT_UInt j,num_ranges;
- TT_GaspRange gaspranges = NULL;
+ FT_UShort j, num_ranges;
+ TT_GaspRange gasp_ranges = NULL;
/* the gasp table is optional */
@@ -1422,8 +1445,8 @@
if ( FT_FRAME_ENTER( 4L ) )
goto Exit;
- face->gasp.version = FT_GET_USHORT();
- face->gasp.numRanges = FT_GET_USHORT();
+ face->gasp.version = FT_GET_USHORT();
+ num_ranges = FT_GET_USHORT();
FT_FRAME_EXIT();
@@ -1435,29 +1458,31 @@
goto Exit;
}
- num_ranges = face->gasp.numRanges;
- FT_TRACE3(( "numRanges: %u\n", num_ranges ));
+ FT_TRACE3(( "numRanges: %hu\n", num_ranges ));
- if ( FT_QNEW_ARRAY( face->gasp.gaspRanges, num_ranges ) ||
- FT_FRAME_ENTER( num_ranges * 4L ) )
+ if ( FT_QNEW_ARRAY( gasp_ranges, num_ranges ) ||
+ FT_FRAME_ENTER( num_ranges * 4L ) )
goto Exit;
- gaspranges = face->gasp.gaspRanges;
-
for ( j = 0; j < num_ranges; j++ )
{
- gaspranges[j].maxPPEM = FT_GET_USHORT();
- gaspranges[j].gaspFlag = FT_GET_USHORT();
+ gasp_ranges[j].maxPPEM = FT_GET_USHORT();
+ gasp_ranges[j].gaspFlag = FT_GET_USHORT();
FT_TRACE3(( "gaspRange %d: rangeMaxPPEM %5d, rangeGaspBehavior 0x%x\n",
j,
- gaspranges[j].maxPPEM,
- gaspranges[j].gaspFlag ));
+ gasp_ranges[j].maxPPEM,
+ gasp_ranges[j].gaspFlag ));
}
+ face->gasp.gaspRanges = gasp_ranges;
+ gasp_ranges = NULL;
+ face->gasp.numRanges = num_ranges;
+
FT_FRAME_EXIT();
Exit:
+ FT_FREE( gasp_ranges );
return error;
}
diff --git a/thirdparty/freetype/src/sfnt/ttload.h b/thirdparty/freetype/src/sfnt/ttload.h
index 4e53d8b782..cab15cd238 100644
--- a/thirdparty/freetype/src/sfnt/ttload.h
+++ b/thirdparty/freetype/src/sfnt/ttload.h
@@ -5,7 +5,7 @@
* Load the basic TrueType tables, i.e., tables that can be either in
* TTF or OTF fonts (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttmtx.c b/thirdparty/freetype/src/sfnt/ttmtx.c
index 021123336e..7aece36fb0 100644
--- a/thirdparty/freetype/src/sfnt/ttmtx.c
+++ b/thirdparty/freetype/src/sfnt/ttmtx.c
@@ -4,7 +4,7 @@
*
* Load the metrics tables common to TTF and OTF fonts (body).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttmtx.h b/thirdparty/freetype/src/sfnt/ttmtx.h
index dba65ca9ba..270170d478 100644
--- a/thirdparty/freetype/src/sfnt/ttmtx.h
+++ b/thirdparty/freetype/src/sfnt/ttmtx.h
@@ -4,7 +4,7 @@
*
* Load the metrics tables common to TTF and OTF fonts (specification).
*
- * Copyright (C) 2006-2020 by
+ * Copyright (C) 2006-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttpost.c b/thirdparty/freetype/src/sfnt/ttpost.c
index e93a4bf1b1..b92ca5db14 100644
--- a/thirdparty/freetype/src/sfnt/ttpost.c
+++ b/thirdparty/freetype/src/sfnt/ttpost.c
@@ -5,7 +5,7 @@
* PostScript name table processing for TrueType and OpenType fonts
* (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -158,7 +158,7 @@
static FT_Error
load_format_20( TT_Face face,
FT_Stream stream,
- FT_ULong post_limit )
+ FT_ULong post_len )
{
FT_Memory memory = stream->memory;
FT_Error error;
@@ -168,6 +168,7 @@
FT_UShort* glyph_indices = NULL;
FT_Char** name_strings = NULL;
+ FT_Byte* strings = NULL;
if ( FT_READ_USHORT( num_glyphs ) )
@@ -179,7 +180,8 @@
/* There already exist fonts which have more than 32768 glyph names */
/* in this table, so the test for this threshold has been dropped. */
- if ( num_glyphs > face->max_profile.numGlyphs )
+ if ( num_glyphs > face->max_profile.numGlyphs ||
+ (FT_ULong)num_glyphs * 2UL > post_len - 2 )
{
error = FT_THROW( Invalid_File_Format );
goto Exit;
@@ -190,7 +192,7 @@
FT_Int n;
- if ( FT_NEW_ARRAY ( glyph_indices, num_glyphs ) ||
+ if ( FT_QNEW_ARRAY( glyph_indices, num_glyphs ) ||
FT_FRAME_ENTER( num_glyphs * 2L ) )
goto Fail;
@@ -223,60 +225,56 @@
}
/* now load the name strings */
+ if ( num_names )
{
FT_UShort n;
+ FT_ULong p;
- if ( FT_NEW_ARRAY( name_strings, num_names ) )
+ post_len -= (FT_ULong)num_glyphs * 2UL + 2;
+
+ if ( FT_QALLOC( strings, post_len + 1 ) ||
+ FT_STREAM_READ( strings, post_len ) ||
+ FT_QNEW_ARRAY( name_strings, num_names ) )
goto Fail;
- for ( n = 0; n < num_names; n++ )
+ /* convert from Pascal- to C-strings and set pointers */
+ for ( p = 0, n = 0; p < post_len && n < num_names; n++ )
{
- FT_UInt len;
+ FT_UInt len = strings[p];
- if ( FT_STREAM_POS() >= post_limit )
- break;
- else
+ if ( len > 63U )
{
- FT_TRACE6(( "load_format_20: %ld byte left in post table\n",
- post_limit - FT_STREAM_POS() ));
-
- if ( FT_READ_BYTE( len ) )
- goto Fail1;
- }
-
- if ( len > post_limit ||
- FT_STREAM_POS() > post_limit - len )
- {
- FT_Int d = (FT_Int)post_limit - (FT_Int)FT_STREAM_POS();
-
-
- FT_ERROR(( "load_format_20:"
- " exceeding string length (%d),"
- " truncating at end of post table (%d byte left)\n",
- len, d ));
- len = (FT_UInt)FT_MAX( 0, d );
+ error = FT_THROW( Invalid_File_Format );
+ goto Fail;
}
- if ( FT_NEW_ARRAY( name_strings[n], len + 1 ) ||
- FT_STREAM_READ( name_strings[n], len ) )
- goto Fail1;
-
- name_strings[n][len] = '\0';
+ strings[p] = 0;
+ name_strings[n] = (FT_Char*)strings + p + 1;
+ p += len + 1;
}
+ strings[post_len] = 0;
+ /* deal with missing or insufficient string data */
if ( n < num_names )
{
+ if ( post_len == 0 )
+ {
+ /* fake empty string */
+ if ( FT_QREALLOC( strings, 1, 2 ) )
+ goto Fail;
+
+ post_len = 1;
+ strings[post_len] = 0;
+ }
+
FT_ERROR(( "load_format_20:"
" all entries in post table are already parsed,"
" using NULL names for gid %d - %d\n",
n, num_names - 1 ));
for ( ; n < num_names; n++ )
- if ( FT_NEW_ARRAY( name_strings[n], 1 ) )
- goto Fail1;
- else
- name_strings[n][0] = '\0';
+ name_strings[n] = (FT_Char*)strings + post_len;
}
}
@@ -292,17 +290,9 @@
}
return FT_Err_Ok;
- Fail1:
- {
- FT_UShort n;
-
-
- for ( n = 0; n < num_names; n++ )
- FT_FREE( name_strings[n] );
- }
-
Fail:
FT_FREE( name_strings );
+ FT_FREE( strings );
FT_FREE( glyph_indices );
Exit:
@@ -313,7 +303,7 @@
static FT_Error
load_format_25( TT_Face face,
FT_Stream stream,
- FT_ULong post_limit )
+ FT_ULong post_len )
{
FT_Memory memory = stream->memory;
FT_Error error;
@@ -321,7 +311,7 @@
FT_Int num_glyphs;
FT_Char* offset_table = NULL;
- FT_UNUSED( post_limit );
+ FT_UNUSED( post_len );
if ( FT_READ_USHORT( num_glyphs ) )
@@ -336,7 +326,7 @@
goto Exit;
}
- if ( FT_NEW_ARRAY( offset_table, num_glyphs ) ||
+ if ( FT_QNEW_ARRAY( offset_table, num_glyphs ) ||
FT_STREAM_READ( offset_table, num_glyphs ) )
goto Fail;
@@ -384,7 +374,6 @@
FT_Error error;
FT_Fixed format;
FT_ULong post_len;
- FT_ULong post_limit;
/* get a stream for the face's resource */
@@ -395,8 +384,6 @@
if ( error )
goto Exit;
- post_limit = FT_STREAM_POS() + post_len;
-
format = face->postscript.FormatType;
/* go to beginning of subtable */
@@ -404,10 +391,10 @@
goto Exit;
/* now read postscript table */
- if ( format == 0x00020000L )
- error = load_format_20( face, stream, post_limit );
- else if ( format == 0x00025000L )
- error = load_format_25( face, stream, post_limit );
+ if ( format == 0x00020000L && post_len >= 34 )
+ error = load_format_20( face, stream, post_len - 32 );
+ else if ( format == 0x00025000L && post_len >= 34 )
+ error = load_format_25( face, stream, post_len - 32 );
else
error = FT_THROW( Invalid_File_Format );
@@ -433,17 +420,19 @@
if ( format == 0x00020000L )
{
TT_Post_20 table = &names->names.format_20;
- FT_UShort n;
FT_FREE( table->glyph_indices );
table->num_glyphs = 0;
- for ( n = 0; n < table->num_names; n++ )
- FT_FREE( table->glyph_names[n] );
+ if ( table->num_names )
+ {
+ table->glyph_names[0]--;
+ FT_FREE( table->glyph_names[0] );
- FT_FREE( table->glyph_names );
- table->num_names = 0;
+ FT_FREE( table->glyph_names );
+ table->num_names = 0;
+ }
}
else if ( format == 0x00025000L )
{
diff --git a/thirdparty/freetype/src/sfnt/ttpost.h b/thirdparty/freetype/src/sfnt/ttpost.h
index 94c7d16800..6d65b5766c 100644
--- a/thirdparty/freetype/src/sfnt/ttpost.h
+++ b/thirdparty/freetype/src/sfnt/ttpost.h
@@ -5,7 +5,7 @@
* PostScript name table processing for TrueType and OpenType fonts
* (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/ttsbit.c b/thirdparty/freetype/src/sfnt/ttsbit.c
index 9dd4419710..e9ba697dba 100644
--- a/thirdparty/freetype/src/sfnt/ttsbit.c
+++ b/thirdparty/freetype/src/sfnt/ttsbit.c
@@ -4,7 +4,7 @@
*
* TrueType and OpenType embedded bitmap support (body).
*
- * Copyright (C) 2005-2020 by
+ * Copyright (C) 2005-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* Copyright 2013 by Google, Inc.
@@ -172,13 +172,17 @@
goto Exit;
}
+#ifdef FT_DEBUG_LEVEL_TRACE
/* we currently don't support bit 1; however, it is better to */
/* draw at least something... */
if ( flags == 3 )
+ {
FT_TRACE1(( "tt_face_load_sbit_strikes:"
- " sbix overlay not supported yet\n"
- " "
+ " sbix overlay not supported yet\n" ));
+ FT_TRACE1(( " "
" expect bad rendering results\n" ));
+ }
+#endif
/*
* Count the number of strikes available in the table. We are a bit
@@ -240,8 +244,8 @@
if ( !face->ebdt_size )
{
FT_TRACE2(( "tt_face_load_sbit_strikes:"
- " no embedded bitmap data table found;\n"
- " "
+ " no embedded bitmap data table found;\n" ));
+ FT_TRACE2(( " "
" resetting number of strikes to zero\n" ));
face->sbit_num_strikes = 0;
}
@@ -345,8 +349,8 @@
if ( metrics->ascender == 0 )
{
FT_TRACE2(( "tt_face_load_strike_metrics:"
- " sanitizing invalid ascender and descender\n"
- " "
+ " sanitizing invalid ascender and descender\n" ));
+ FT_TRACE2(( " "
" values for strike %ld (%dppem, %dppem)\n",
strike_index,
metrics->x_ppem, metrics->y_ppem ));
@@ -374,8 +378,8 @@
if ( metrics->height == 0 )
{
FT_TRACE2(( "tt_face_load_strike_metrics:"
- " sanitizing invalid height value\n"
- " "
+ " sanitizing invalid height value\n" ));
+ FT_TRACE2(( " "
" for strike (%d, %d)\n",
metrics->x_ppem, metrics->y_ppem ));
metrics->height = metrics->y_ppem * 64;
diff --git a/thirdparty/freetype/src/sfnt/ttsbit.h b/thirdparty/freetype/src/sfnt/ttsbit.h
index b867e43a61..7a0ed92e92 100644
--- a/thirdparty/freetype/src/sfnt/ttsbit.h
+++ b/thirdparty/freetype/src/sfnt/ttsbit.h
@@ -4,7 +4,7 @@
*
* TrueType and OpenType embedded bitmap support (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/sfnt/woff2tags.c b/thirdparty/freetype/src/sfnt/woff2tags.c
index fd9f2e6c5d..fe8f5cf76f 100644
--- a/thirdparty/freetype/src/sfnt/woff2tags.c
+++ b/thirdparty/freetype/src/sfnt/woff2tags.c
@@ -4,7 +4,7 @@
*
* WOFF2 Font table tags (base).
*
- * Copyright (C) 2019-2020 by
+ * Copyright (C) 2019-2021 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -17,6 +17,9 @@
#include <freetype/tttags.h>
+
+#ifdef FT_CONFIG_OPTION_USE_BROTLI
+
#include "woff2tags.h"
/*
@@ -28,10 +31,10 @@
*
* for details.
*/
- FT_LOCAL_DEF( FT_ULong )
+ FT_LOCAL_DEF( FT_Tag )
woff2_known_tags( FT_Byte index )
{
- const FT_ULong known_tags[63] =
+ static const FT_Tag known_tags[63] =
{
FT_MAKE_TAG('c', 'm', 'a', 'p'), /* 0 */
FT_MAKE_TAG('h', 'e', 'a', 'd'), /* 1 */
@@ -105,5 +108,12 @@
return known_tags[index];
}
+#else /* !FT_CONFIG_OPTION_USE_BROTLI */
+
+ /* ANSI C doesn't like empty source files */
+ typedef int _woff2tags_dummy;
+
+#endif /* !FT_CONFIG_OPTION_USE_BROTLI */
+
/* END */
diff --git a/thirdparty/freetype/src/sfnt/woff2tags.h b/thirdparty/freetype/src/sfnt/woff2tags.h
index c437c77aa1..4ef0a651c3 100644
--- a/thirdparty/freetype/src/sfnt/woff2tags.h
+++ b/thirdparty/freetype/src/sfnt/woff2tags.h
@@ -2,9 +2,9 @@
*
* woff2tags.h
*
- * WOFFF2 Font table tags (specification).
+ * WOFF2 Font table tags (specification).
*
- * Copyright (C) 2019-2020 by
+ * Copyright (C) 2019-2021 by
* Nikhil Ramakrishnan, David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -26,10 +26,12 @@
FT_BEGIN_HEADER
+#ifdef FT_CONFIG_OPTION_USE_BROTLI
- FT_LOCAL( FT_ULong )
+ FT_LOCAL( FT_Tag )
woff2_known_tags( FT_Byte index );
+#endif
FT_END_HEADER
diff --git a/thirdparty/freetype/src/smooth/ftgrays.c b/thirdparty/freetype/src/smooth/ftgrays.c
index 681900fd40..d982c2820b 100644
--- a/thirdparty/freetype/src/smooth/ftgrays.c
+++ b/thirdparty/freetype/src/smooth/ftgrays.c
@@ -4,7 +4,7 @@
*
* A new `perfect' anti-aliasing renderer (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -149,14 +149,10 @@
#define FT_INT_MAX INT_MAX
#define FT_ULONG_MAX ULONG_MAX
-#define ADD_LONG( a, b ) \
- (long)( (unsigned long)(a) + (unsigned long)(b) )
-#define SUB_LONG( a, b ) \
- (long)( (unsigned long)(a) - (unsigned long)(b) )
-#define MUL_LONG( a, b ) \
- (long)( (unsigned long)(a) * (unsigned long)(b) )
-#define NEG_LONG( a ) \
- (long)( -(unsigned long)(a) )
+#define ADD_INT( a, b ) \
+ (int)( (unsigned int)(a) + (unsigned int)(b) )
+
+#define FT_STATIC_BYTE_CAST( type, var ) (type)(unsigned char)(var)
#define ft_memset memset
@@ -168,10 +164,11 @@
typedef ptrdiff_t FT_PtrDist;
-#define ErrRaster_Invalid_Mode -2
-#define ErrRaster_Invalid_Outline -1
-#define ErrRaster_Invalid_Argument -3
-#define ErrRaster_Memory_Overflow -4
+#define Smooth_Err_Ok 0
+#define Smooth_Err_Invalid_Outline -1
+#define Smooth_Err_Cannot_Render_Glyph -2
+#define Smooth_Err_Invalid_Argument -3
+#define Smooth_Err_Raster_Overflow -4
#define FT_BEGIN_HEADER
#define FT_END_HEADER
@@ -229,23 +226,26 @@ typedef ptrdiff_t FT_PtrDist;
#define FT_ERROR( varformat ) FT_Message varformat
#endif
-#define FT_THROW( e ) \
- ( FT_Throw( FT_ERR_CAT( ErrRaster_, e ), \
- __LINE__, \
- __FILE__ ) | \
- FT_ERR_CAT( ErrRaster_, e ) )
+#define FT_THROW( e ) \
+ ( FT_Throw( FT_ERR_CAT( Smooth_Err_, e ), \
+ __LINE__, \
+ __FILE__ ) | \
+ FT_ERR_CAT( Smooth_Err_, e ) )
#else /* !FT_DEBUG_LEVEL_TRACE */
#define FT_TRACE5( x ) do { } while ( 0 ) /* nothing */
#define FT_TRACE7( x ) do { } while ( 0 ) /* nothing */
#define FT_ERROR( x ) do { } while ( 0 ) /* nothing */
-#define FT_THROW( e ) FT_ERR_CAT( ErrRaster_, e )
-
+#define FT_THROW( e ) FT_ERR_CAT( Smooth_Err_, e )
#endif /* !FT_DEBUG_LEVEL_TRACE */
+#define FT_Trace_Enable() do { } while ( 0 ) /* nothing */
+#define FT_Trace_Disable() do { } while ( 0 ) /* nothing */
+
+
#define FT_DEFINE_OUTLINE_FUNCS( class_, \
move_to_, line_to_, \
conic_to_, cubic_to_, \
@@ -278,6 +278,8 @@ typedef ptrdiff_t FT_PtrDist;
#else /* !STANDALONE_ */
+#include <ft2build.h>
+#include FT_CONFIG_CONFIG_H
#include "ftgrays.h"
#include <freetype/internal/ftobjs.h>
#include <freetype/internal/ftdebug.h>
@@ -286,10 +288,6 @@ typedef ptrdiff_t FT_PtrDist;
#include "ftsmerrs.h"
-#define Smooth_Err_Invalid_Mode Smooth_Err_Cannot_Render_Glyph
-#define Smooth_Err_Memory_Overflow Smooth_Err_Out_Of_Memory
-#define ErrRaster_Memory_Overflow Smooth_Err_Out_Of_Memory
-
#endif /* !STANDALONE_ */
@@ -362,7 +360,7 @@ typedef ptrdiff_t FT_PtrDist;
} \
FT_END_STMNT
-#ifdef __arm__
+#if defined( __GNUC__ ) && __GNUC__ < 7 && defined( __arm__ )
/* Work around a bug specific to GCC which make the compiler fail to */
/* optimize a division and modulo operation on the same parameters */
/* into a single call to `__aeabi_idivmod'. See */
@@ -382,14 +380,58 @@ typedef ptrdiff_t FT_PtrDist;
#endif /* __arm__ */
- /* These macros speed up repetitive divisions by replacing them */
- /* with multiplications and right shifts. */
-#define FT_UDIVPREP( c, b ) \
- long b ## _r = c ? (long)( FT_ULONG_MAX >> PIXEL_BITS ) / ( b ) \
- : 0
-#define FT_UDIV( a, b ) \
- (TCoord)( ( (unsigned long)( a ) * (unsigned long)( b ## _r ) ) >> \
- ( sizeof( long ) * FT_CHAR_BIT - PIXEL_BITS ) )
+ /* Calculating coverages for a slanted line requires a division each */
+ /* time the line crosses from cell to cell. These macros speed up */
+ /* the repetitive divisions by replacing them with multiplications */
+ /* and right shifts so that at most two divisions are performed for */
+ /* each slanted line. Nevertheless, these divisions are noticeable */
+ /* in the overall performance because flattened curves produce a */
+ /* very large number of slanted lines. */
+ /* */
+ /* The division results here are always within ONE_PIXEL. Therefore */
+ /* the shift magnitude should be at least PIXEL_BITS wider than the */
+ /* divisors to provide sufficient accuracy of the multiply-shift. */
+ /* It should not exceed (64 - PIXEL_BITS) to prevent overflowing and */
+ /* leave enough room for 64-bit unsigned multiplication however. */
+#define FT_UDIVPREP( c, b ) \
+ FT_Int64 b ## _r = c ? (FT_Int64)0xFFFFFFFF / ( b ) : 0
+#define FT_UDIV( a, b ) \
+ (TCoord)( ( (FT_UInt64)( a ) * (FT_UInt64)( b ## _r ) ) >> 32 )
+
+
+ /* Scale area and apply fill rule to calculate the coverage byte. */
+ /* The top fill bit is used for the non-zero rule. The eighth */
+ /* fill bit is used for the even-odd rule. The higher coverage */
+ /* bytes are either clamped for the non-zero-rule or discarded */
+ /* later for the even-odd rule. */
+#define FT_FILL_RULE( coverage, area, fill ) \
+ FT_BEGIN_STMNT \
+ coverage = (int)( area >> ( PIXEL_BITS * 2 + 1 - 8 ) ); \
+ if ( coverage & fill ) \
+ coverage = ~coverage; \
+ if ( coverage > 255 && fill & INT_MIN ) \
+ coverage = 255; \
+ FT_END_STMNT
+
+
+ /* It is faster to write small spans byte-by-byte than calling */
+ /* `memset'. This is mainly due to the cost of the function call. */
+#define FT_GRAY_SET( d, s, count ) \
+ FT_BEGIN_STMNT \
+ unsigned char* q = d; \
+ switch ( count ) \
+ { \
+ case 7: *q++ = (unsigned char)s; /* fall through */ \
+ case 6: *q++ = (unsigned char)s; /* fall through */ \
+ case 5: *q++ = (unsigned char)s; /* fall through */ \
+ case 4: *q++ = (unsigned char)s; /* fall through */ \
+ case 3: *q++ = (unsigned char)s; /* fall through */ \
+ case 2: *q++ = (unsigned char)s; /* fall through */ \
+ case 1: *q = (unsigned char)s; /* fall through */ \
+ case 0: break; \
+ default: FT_MEM_SET( d, s, count ); \
+ } \
+ FT_END_STMNT
/**************************************************************************
@@ -432,7 +474,7 @@ typedef ptrdiff_t FT_PtrDist;
#endif
/* FT_Span buffer size for direct rendering only */
-#define FT_MAX_GRAY_SPANS 10
+#define FT_MAX_GRAY_SPANS 16
#if defined( _MSC_VER ) /* Visual C++ (and Intel C++) */
@@ -447,28 +489,24 @@ typedef ptrdiff_t FT_PtrDist;
{
ft_jmp_buf jump_buffer;
- TCoord ex, ey;
- TCoord min_ex, max_ex;
+ TCoord min_ex, max_ex; /* min and max integer pixel coordinates */
TCoord min_ey, max_ey;
+ TCoord count_ey; /* same as (max_ey - min_ey) */
- TArea area;
- TCoord cover;
- int invalid;
+ PCell cell; /* current cell */
+ PCell cell_free; /* call allocation next free slot */
+ PCell cell_null; /* last cell, used as dumpster and limit */
- PCell* ycells;
- PCell cells;
- FT_PtrDist max_cells;
- FT_PtrDist num_cells;
+ PCell* ycells; /* array of cell linked-lists; one per */
+ /* vertical coordinate in the current band */
- TPos x, y;
+ TPos x, y; /* last point position */
- FT_Outline outline;
- TPixmap target;
+ FT_Outline outline; /* input outline */
+ TPixmap target; /* target pixmap */
FT_Raster_Span_Func render_span;
void* render_span_data;
- FT_Span spans[FT_MAX_GRAY_SPANS];
- int num_spans;
} gray_TWorker, *gray_PWorker;
@@ -476,17 +514,25 @@ typedef ptrdiff_t FT_PtrDist;
#pragma warning( pop )
#endif
-
#ifndef FT_STATIC_RASTER
#define ras (*worker)
#else
static gray_TWorker ras;
#endif
+ /* The |x| value of the null cell. Must be the largest possible */
+ /* integer value stored in a `TCell.x` field. */
+#define CELL_MAX_X_VALUE INT_MAX
+
+
+#define FT_INTEGRATE( ras, a, b ) \
+ ras.cell->cover = ADD_INT( ras.cell->cover, a ), \
+ ras.cell->area = ADD_INT( ras.cell->area, (a) * (TArea)(b) )
+
typedef struct gray_TRaster_
{
- void* memory;
+ void* memory;
} gray_TRaster, *gray_PRaster;
@@ -508,7 +554,7 @@ typedef ptrdiff_t FT_PtrDist;
printf( "%3d:", y );
- for ( ; cell != NULL; cell = cell->next )
+ for ( ; cell != ras.cell_null; cell = cell->next )
printf( " (%3d, c:%4d, a:%6d)",
cell->x, cell->cover, cell->area );
printf( "\n" );
@@ -520,81 +566,67 @@ typedef ptrdiff_t FT_PtrDist;
/**************************************************************************
*
- * Record the current cell in the linked list.
+ * Set the current cell to a new position.
*/
static void
- gray_record_cell( RAS_ARG )
+ gray_set_cell( RAS_ARG_ TCoord ex,
+ TCoord ey )
{
- PCell *pcell, cell;
- TCoord x = ras.ex;
-
+ /* Move the cell pointer to a new position in the linked list. We use */
+ /* a dumpster null cell for everything outside of the clipping region */
+ /* during the render phase. This means that: */
+ /* */
+ /* . the new vertical position must be within min_ey..max_ey-1. */
+ /* . the new horizontal position must be strictly less than max_ex */
+ /* */
+ /* Note that if a cell is to the left of the clipping region, it is */
+ /* actually set to the (min_ex-1) horizontal position. */
- pcell = &ras.ycells[ras.ey - ras.min_ey];
- while ( ( cell = *pcell ) )
- {
- if ( cell->x > x )
- break;
+ TCoord ey_index = ey - ras.min_ey;
- if ( cell->x == x )
- goto Found;
- pcell = &cell->next;
- }
+ if ( ey_index < 0 || ey_index >= ras.count_ey || ex >= ras.max_ex )
+ ras.cell = ras.cell_null;
+ else
+ {
+ PCell* pcell = ras.ycells + ey_index;
+ PCell cell;
- if ( ras.num_cells >= ras.max_cells )
- ft_longjmp( ras.jump_buffer, 1 );
- /* insert new cell */
- cell = ras.cells + ras.num_cells++;
- cell->x = x;
- cell->area = ras.area;
- cell->cover = ras.cover;
+ ex = FT_MAX( ex, ras.min_ex - 1 );
- cell->next = *pcell;
- *pcell = cell;
+ while ( 1 )
+ {
+ cell = *pcell;
- return;
+ if ( cell->x > ex )
+ break;
- Found:
- /* update old cell */
- cell->area += ras.area;
- cell->cover += ras.cover;
- }
+ if ( cell->x == ex )
+ goto Found;
+ pcell = &cell->next;
+ }
- /**************************************************************************
- *
- * Set the current cell to a new position.
- */
- static void
- gray_set_cell( RAS_ARG_ TCoord ex,
- TCoord ey )
- {
- /* Move the cell pointer to a new position. We set the `invalid' */
- /* flag to indicate that the cell isn't part of those we're interested */
- /* in during the render phase. This means that: */
- /* */
- /* . the new vertical position must be within min_ey..max_ey-1. */
- /* . the new horizontal position must be strictly less than max_ex */
- /* */
- /* Note that if a cell is to the left of the clipping region, it is */
- /* actually set to the (min_ex-1) horizontal position. */
+ /* insert new cell */
+ cell = ras.cell_free++;
+ if ( cell >= ras.cell_null )
+ ft_longjmp( ras.jump_buffer, 1 );
- /* record the current one if it is valid and substantial */
- if ( !ras.invalid && ( ras.area || ras.cover ) )
- gray_record_cell( RAS_VAR );
+ cell->x = ex;
+ cell->area = 0;
+ cell->cover = 0;
- ras.area = 0;
- ras.cover = 0;
- ras.ex = FT_MAX( ex, ras.min_ex - 1 );
- ras.ey = ey;
+ cell->next = *pcell;
+ *pcell = cell;
- ras.invalid = ( ey >= ras.max_ey || ey < ras.min_ey ||
- ex >= ras.max_ex );
+ Found:
+ ras.cell = cell;
+ }
}
-#ifndef FT_LONG64
+#ifndef FT_INT64
/**************************************************************************
*
@@ -622,8 +654,8 @@ typedef ptrdiff_t FT_PtrDist;
return;
}
- fx1 = FRACT( x1 );
- fx2 = FRACT( x2 );
+ fx1 = FRACT( x1 );
+ fx2 = FRACT( x2 );
/* everything is located in a single cell. That is easy! */
/* */
@@ -655,10 +687,9 @@ typedef ptrdiff_t FT_PtrDist;
/* XXX: y-delta and x-delta below should be related. */
FT_DIV_MOD( TCoord, p, dx, delta, mod );
- ras.area += (TArea)( ( fx1 + first ) * delta );
- ras.cover += delta;
- y1 += delta;
- ex1 += incr;
+ FT_INTEGRATE( ras, delta, fx1 + first );
+ y1 += delta;
+ ex1 += incr;
gray_set_cell( RAS_VAR_ ex1, ey );
if ( ex1 != ex2 )
@@ -679,10 +710,9 @@ typedef ptrdiff_t FT_PtrDist;
delta++;
}
- ras.area += (TArea)( ONE_PIXEL * delta );
- ras.cover += delta;
- y1 += delta;
- ex1 += incr;
+ FT_INTEGRATE( ras, delta, ONE_PIXEL );
+ y1 += delta;
+ ex1 += incr;
gray_set_cell( RAS_VAR_ ex1, ey );
} while ( ex1 != ex2 );
}
@@ -690,10 +720,7 @@ typedef ptrdiff_t FT_PtrDist;
fx1 = ONE_PIXEL - first;
End:
- dy = y2 - y1;
-
- ras.area += (TArea)( ( fx1 + fx2 ) * dy );
- ras.cover += dy;
+ FT_INTEGRATE( ras, y2 - y1, fx1 + fx2 );
}
@@ -736,7 +763,6 @@ typedef ptrdiff_t FT_PtrDist;
{
TCoord ex = TRUNC( ras.x );
TCoord two_fx = FRACT( ras.x ) << 1;
- TArea area;
if ( dy > 0)
@@ -750,27 +776,23 @@ typedef ptrdiff_t FT_PtrDist;
incr = -1;
}
- delta = first - fy1;
- ras.area += (TArea)two_fx * delta;
- ras.cover += delta;
- ey1 += incr;
+ delta = first - fy1;
+ FT_INTEGRATE( ras, delta, two_fx);
+ ey1 += incr;
gray_set_cell( RAS_VAR_ ex, ey1 );
delta = first + first - ONE_PIXEL;
- area = (TArea)two_fx * delta;
while ( ey1 != ey2 )
{
- ras.area += area;
- ras.cover += delta;
- ey1 += incr;
+ FT_INTEGRATE( ras, delta, two_fx);
+ ey1 += incr;
gray_set_cell( RAS_VAR_ ex, ey1 );
}
- delta = fy2 - ONE_PIXEL + first;
- ras.area += (TArea)two_fx * delta;
- ras.cover += delta;
+ delta = fy2 - ONE_PIXEL + first;
+ FT_INTEGRATE( ras, delta, two_fx);
goto End;
}
@@ -883,8 +905,7 @@ typedef ptrdiff_t FT_PtrDist;
do
{
fy2 = ONE_PIXEL;
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * fx1 * 2;
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 * 2 );
fy1 = 0;
ey1++;
gray_set_cell( RAS_VAR_ ex1, ey1 );
@@ -893,8 +914,7 @@ typedef ptrdiff_t FT_PtrDist;
do
{
fy2 = 0;
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * fx1 * 2;
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 * 2 );
fy1 = ONE_PIXEL;
ey1--;
gray_set_cell( RAS_VAR_ ex1, ey1 );
@@ -902,7 +922,7 @@ typedef ptrdiff_t FT_PtrDist;
}
else /* any other line */
{
- TPos prod = dx * (TPos)fy1 - dy * (TPos)fx1;
+ FT_Int64 prod = dx * (FT_Int64)fy1 - dy * (FT_Int64)fx1;
FT_UDIVPREP( ex1 != ex2, dx );
FT_UDIVPREP( ey1 != ey2, dy );
@@ -912,72 +932,308 @@ typedef ptrdiff_t FT_PtrDist;
/* also easily updated when moving from one cell to the next. */
do
{
- if ( prod <= 0 &&
- prod - dx * ONE_PIXEL > 0 ) /* left */
+ if ( prod - dx * ONE_PIXEL > 0 &&
+ prod <= 0 ) /* left */
{
fx2 = 0;
fy2 = FT_UDIV( -prod, -dx );
prod -= dy * ONE_PIXEL;
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 );
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 );
fx1 = ONE_PIXEL;
fy1 = fy2;
ex1--;
}
- else if ( prod - dx * ONE_PIXEL <= 0 &&
- prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 ) /* up */
+ else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL > 0 &&
+ prod - dx * ONE_PIXEL <= 0 ) /* up */
{
prod -= dx * ONE_PIXEL;
fx2 = FT_UDIV( -prod, dy );
fy2 = ONE_PIXEL;
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 );
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 );
fx1 = fx2;
fy1 = 0;
ey1++;
}
- else if ( prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 &&
- prod + dy * ONE_PIXEL >= 0 ) /* right */
+ else if ( prod + dy * ONE_PIXEL >= 0 &&
+ prod - dx * ONE_PIXEL + dy * ONE_PIXEL <= 0 ) /* right */
{
prod += dy * ONE_PIXEL;
fx2 = ONE_PIXEL;
fy2 = FT_UDIV( prod, dx );
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 );
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 );
fx1 = 0;
fy1 = fy2;
ex1++;
}
- else /* ( prod + dy * ONE_PIXEL < 0 &&
- prod > 0 ) down */
+ else /* ( prod > 0 &&
+ prod + dy * ONE_PIXEL < 0 ) down */
{
fx2 = FT_UDIV( prod, -dy );
fy2 = 0;
prod += dx * ONE_PIXEL;
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 );
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 );
fx1 = fx2;
fy1 = ONE_PIXEL;
ey1--;
}
gray_set_cell( RAS_VAR_ ex1, ey1 );
+
} while ( ex1 != ex2 || ey1 != ey2 );
}
fx2 = FRACT( to_x );
fy2 = FRACT( to_y );
- ras.cover += ( fy2 - fy1 );
- ras.area += ( fy2 - fy1 ) * ( fx1 + fx2 );
+ FT_INTEGRATE( ras, fy2 - fy1, fx1 + fx2 );
End:
- ras.x = to_x;
- ras.y = to_y;
+ ras.x = to_x;
+ ras.y = to_y;
}
#endif
+ /*
+ * Benchmarking shows that using DDA to flatten the quadratic Bézier arcs
+ * is slightly faster in the following cases:
+ *
+ * - When the host CPU is 64-bit.
+ * - When SSE2 SIMD registers and instructions are available (even on
+ * x86).
+ *
+ * For other cases, using binary splits is actually slightly faster.
+ */
+#if defined( __SSE2__ ) || \
+ defined( __x86_64__ ) || \
+ defined( _M_AMD64 ) || \
+ ( defined( _M_IX86_FP ) && _M_IX86_FP >= 2 )
+# define FT_SSE2 1
+#else
+# define FT_SSE2 0
+#endif
+
+#if FT_SSE2 || \
+ defined( __aarch64__ ) || \
+ defined( _M_ARM64 )
+# define BEZIER_USE_DDA 1
+#else
+# define BEZIER_USE_DDA 0
+#endif
+
+ /*
+ * For now, the code that depends on `BEZIER_USE_DDA` requires `FT_Int64`
+ * to be defined. If `FT_INT64` is not defined, meaning there is no
+ * 64-bit type available, disable it to avoid compilation errors. See for
+ * example https://gitlab.freedesktop.org/freetype/freetype/-/issues/1071.
+ */
+#if !defined( FT_INT64 )
+# undef BEZIER_USE_DDA
+# define BEZIER_USE_DDA 0
+#endif
+
+#if BEZIER_USE_DDA
+
+#if FT_SSE2
+# include <emmintrin.h>
+#endif
+
+#define LEFT_SHIFT( a, b ) (FT_Int64)( (FT_UInt64)(a) << (b) )
+
+
+ static void
+ gray_render_conic( RAS_ARG_ const FT_Vector* control,
+ const FT_Vector* to )
+ {
+ FT_Vector p0, p1, p2;
+ TPos ax, ay, bx, by, dx, dy;
+ int shift;
+
+ FT_Int64 rx, ry;
+ FT_Int64 qx, qy;
+ FT_Int64 px, py;
+
+ FT_UInt count;
+
+
+ p0.x = ras.x;
+ p0.y = ras.y;
+ p1.x = UPSCALE( control->x );
+ p1.y = UPSCALE( control->y );
+ p2.x = UPSCALE( to->x );
+ p2.y = UPSCALE( to->y );
+
+ /* short-cut the arc that crosses the current band */
+ if ( ( TRUNC( p0.y ) >= ras.max_ey &&
+ TRUNC( p1.y ) >= ras.max_ey &&
+ TRUNC( p2.y ) >= ras.max_ey ) ||
+ ( TRUNC( p0.y ) < ras.min_ey &&
+ TRUNC( p1.y ) < ras.min_ey &&
+ TRUNC( p2.y ) < ras.min_ey ) )
+ {
+ ras.x = p2.x;
+ ras.y = p2.y;
+ return;
+ }
+
+ bx = p1.x - p0.x;
+ by = p1.y - p0.y;
+ ax = p2.x - p1.x - bx; /* p0.x + p2.x - 2 * p1.x */
+ ay = p2.y - p1.y - by; /* p0.y + p2.y - 2 * p1.y */
+
+ dx = FT_ABS( ax );
+ dy = FT_ABS( ay );
+ if ( dx < dy )
+ dx = dy;
+
+ if ( dx <= ONE_PIXEL / 4 )
+ {
+ gray_render_line( RAS_VAR_ p2.x, p2.y );
+ return;
+ }
+
+ /* We can calculate the number of necessary bisections because */
+ /* each bisection predictably reduces deviation exactly 4-fold. */
+ /* Even 32-bit deviation would vanish after 16 bisections. */
+ shift = 0;
+ do
+ {
+ dx >>= 2;
+ shift += 1;
+
+ } while ( dx > ONE_PIXEL / 4 );
+
+ /*
+ * The (P0,P1,P2) arc equation, for t in [0,1] range:
+ *
+ * P(t) = P0*(1-t)^2 + P1*2*t*(1-t) + P2*t^2
+ *
+ * P(t) = P0 + 2*(P1-P0)*t + (P0+P2-2*P1)*t^2
+ * = P0 + 2*B*t + A*t^2
+ *
+ * for A = P0 + P2 - 2*P1
+ * and B = P1 - P0
+ *
+ * Let's consider the difference when advancing by a small
+ * parameter h:
+ *
+ * Q(h,t) = P(t+h) - P(t) = 2*B*h + A*h^2 + 2*A*h*t
+ *
+ * And then its own difference:
+ *
+ * R(h,t) = Q(h,t+h) - Q(h,t) = 2*A*h*h = R (constant)
+ *
+ * Since R is always a constant, it is possible to compute
+ * successive positions with:
+ *
+ * P = P0
+ * Q = Q(h,0) = 2*B*h + A*h*h
+ * R = 2*A*h*h
+ *
+ * loop:
+ * P += Q
+ * Q += R
+ * EMIT(P)
+ *
+ * To ensure accurate results, perform computations on 64-bit
+ * values, after scaling them by 2^32.
+ *
+ * h = 1 / 2^N
+ *
+ * R << 32 = 2 * A << (32 - N - N)
+ * = A << (33 - 2*N)
+ *
+ * Q << 32 = (2 * B << (32 - N)) + (A << (32 - N - N))
+ * = (B << (33 - N)) + (A << (32 - 2*N))
+ */
+
+#if FT_SSE2
+ /* Experience shows that for small shift values, */
+ /* SSE2 is actually slower. */
+ if ( shift > 2 )
+ {
+ union
+ {
+ struct { FT_Int64 ax, ay, bx, by; } i;
+ struct { __m128i a, b; } vec;
+
+ } u;
+
+ union
+ {
+ struct { FT_Int32 px_lo, px_hi, py_lo, py_hi; } i;
+ __m128i vec;
+
+ } v;
+
+ __m128i a, b;
+ __m128i r, q, q2;
+ __m128i p;
+
+
+ u.i.ax = ax;
+ u.i.ay = ay;
+ u.i.bx = bx;
+ u.i.by = by;
+
+ a = _mm_load_si128( &u.vec.a );
+ b = _mm_load_si128( &u.vec.b );
+
+ r = _mm_slli_epi64( a, 33 - 2 * shift );
+ q = _mm_slli_epi64( b, 33 - shift );
+ q2 = _mm_slli_epi64( a, 32 - 2 * shift );
+
+ q = _mm_add_epi64( q2, q );
+
+ v.i.px_lo = 0;
+ v.i.px_hi = p0.x;
+ v.i.py_lo = 0;
+ v.i.py_hi = p0.y;
+
+ p = _mm_load_si128( &v.vec );
+
+ for ( count = 1U << shift; count > 0; count-- )
+ {
+ p = _mm_add_epi64( p, q );
+ q = _mm_add_epi64( q, r );
+
+ _mm_store_si128( &v.vec, p );
+
+ gray_render_line( RAS_VAR_ v.i.px_hi, v.i.py_hi );
+ }
+
+ return;
+ }
+#endif /* FT_SSE2 */
+
+ rx = LEFT_SHIFT( ax, 33 - 2 * shift );
+ ry = LEFT_SHIFT( ay, 33 - 2 * shift );
+
+ qx = LEFT_SHIFT( bx, 33 - shift ) + LEFT_SHIFT( ax, 32 - 2 * shift );
+ qy = LEFT_SHIFT( by, 33 - shift ) + LEFT_SHIFT( ay, 32 - 2 * shift );
+
+ px = LEFT_SHIFT( p0.x, 32 );
+ py = LEFT_SHIFT( p0.y, 32 );
+
+ for ( count = 1U << shift; count > 0; count-- )
+ {
+ px += qx;
+ py += qy;
+ qx += rx;
+ qy += ry;
+
+ gray_render_line( RAS_VAR_ (FT_Pos)( px >> 32 ),
+ (FT_Pos)( py >> 32 ) );
+ }
+ }
+
+#else /* !BEZIER_USE_DDA */
+
+ /*
+ * Note that multiple attempts to speed up the function below
+ * with SSE2 intrinsics, using various data layouts, have turned
+ * out to be slower than the non-SIMD code below.
+ */
static void
gray_split_conic( FT_Vector* base )
{
@@ -1007,7 +1263,7 @@ typedef ptrdiff_t FT_PtrDist;
FT_Vector bez_stack[16 * 2 + 1]; /* enough to accommodate bisections */
FT_Vector* arc = bez_stack;
TPos dx, dy;
- int draw, split;
+ int draw;
arc[0].x = UPSCALE( to->x );
@@ -1050,7 +1306,9 @@ typedef ptrdiff_t FT_PtrDist;
/* many times as there are trailing zeros in the counter. */
do
{
- split = draw & ( -draw ); /* isolate the rightmost 1-bit */
+ int split = draw & ( -draw ); /* isolate the rightmost 1-bit */
+
+
while ( ( split >>= 1 ) )
{
gray_split_conic( arc );
@@ -1063,7 +1321,17 @@ typedef ptrdiff_t FT_PtrDist;
} while ( --draw );
}
+#endif /* !BEZIER_USE_DDA */
+
+ /*
+ * For cubic Bézier, binary splits are still faster than DDA
+ * because the splits are adaptive to how quickly each sub-arc
+ * approaches their chord trisection points.
+ *
+ * It might be useful to experiment with SSE2 to speed up
+ * `gray_split_cubic`, though.
+ */
static void
gray_split_cubic( FT_Vector* base )
{
@@ -1205,125 +1473,133 @@ typedef ptrdiff_t FT_PtrDist;
static void
- gray_hline( RAS_ARG_ TCoord x,
- TCoord y,
- TArea coverage,
- TCoord acount )
+ gray_sweep( RAS_ARG )
{
- /* scale the coverage from 0..(ONE_PIXEL*ONE_PIXEL*2) to 0..256 */
- coverage >>= PIXEL_BITS * 2 + 1 - 8;
+ int fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100
+ : INT_MIN;
+ int coverage;
+ int y;
- /* compute the line's coverage depending on the outline fill rule */
- if ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL )
- {
- coverage &= 511;
- if ( coverage >= 256 )
- coverage = 511 - coverage;
- }
- else /* default non-zero winding rule */
+ for ( y = ras.min_ey; y < ras.max_ey; y++ )
{
- if ( coverage < 0 )
- coverage = ~coverage; /* the same as -coverage - 1 */
+ PCell cell = ras.ycells[y - ras.min_ey];
+ TCoord x = ras.min_ex;
+ TArea cover = 0;
- if ( coverage >= 256 )
- coverage = 255;
- }
+ unsigned char* line = ras.target.origin - ras.target.pitch * y;
- if ( ras.num_spans >= 0 ) /* for FT_RASTER_FLAG_DIRECT only */
- {
- FT_Span* span = ras.spans + ras.num_spans++;
+
+ for ( ; cell != ras.cell_null; cell = cell->next )
+ {
+ TArea area;
- span->x = (short)x;
- span->len = (unsigned short)acount;
- span->coverage = (unsigned char)coverage;
+ if ( cover != 0 && cell->x > x )
+ {
+ FT_FILL_RULE( coverage, cover, fill );
+ FT_GRAY_SET( line + x, coverage, cell->x - x );
+ }
- if ( ras.num_spans == FT_MAX_GRAY_SPANS )
- {
- /* flush the span buffer and reset the count */
- ras.render_span( y, ras.num_spans, ras.spans, ras.render_span_data );
- ras.num_spans = 0;
- }
- }
- else
- {
- unsigned char* q = ras.target.origin - ras.target.pitch * y + x;
- unsigned char c = (unsigned char)coverage;
+ cover += (TArea)cell->cover * ( ONE_PIXEL * 2 );
+ area = cover - cell->area;
+ if ( area != 0 && cell->x >= ras.min_ex )
+ {
+ FT_FILL_RULE( coverage, area, fill );
+ line[cell->x] = (unsigned char)coverage;
+ }
+
+ x = cell->x + 1;
+ }
- /* For small-spans it is faster to do it by ourselves than
- * calling `memset'. This is mainly due to the cost of the
- * function call.
- */
- switch ( acount )
+ if ( cover != 0 ) /* only if cropped */
{
- case 7:
- *q++ = c;
- /* fall through */
- case 6:
- *q++ = c;
- /* fall through */
- case 5:
- *q++ = c;
- /* fall through */
- case 4:
- *q++ = c;
- /* fall through */
- case 3:
- *q++ = c;
- /* fall through */
- case 2:
- *q++ = c;
- /* fall through */
- case 1:
- *q = c;
- /* fall through */
- case 0:
- break;
- default:
- FT_MEM_SET( q, c, acount );
+ FT_FILL_RULE( coverage, cover, fill );
+ FT_GRAY_SET( line + x, coverage, ras.max_ex - x );
}
}
}
static void
- gray_sweep( RAS_ARG )
+ gray_sweep_direct( RAS_ARG )
{
+ int fill = ( ras.outline.flags & FT_OUTLINE_EVEN_ODD_FILL ) ? 0x100
+ : INT_MIN;
+ int coverage;
int y;
+ FT_Span span[FT_MAX_GRAY_SPANS];
+ int n = 0;
+
for ( y = ras.min_ey; y < ras.max_ey; y++ )
{
PCell cell = ras.ycells[y - ras.min_ey];
TCoord x = ras.min_ex;
TArea cover = 0;
- TArea area;
- for ( ; cell != NULL; cell = cell->next )
+ for ( ; cell != ras.cell_null; cell = cell->next )
{
+ TArea area;
+
+
if ( cover != 0 && cell->x > x )
- gray_hline( RAS_VAR_ x, y, cover, cell->x - x );
+ {
+ FT_FILL_RULE( coverage, cover, fill );
+
+ span[n].coverage = (unsigned char)coverage;
+ span[n].x = (short)x;
+ span[n].len = (unsigned short)( cell->x - x );
+
+ if ( ++n == FT_MAX_GRAY_SPANS )
+ {
+ /* flush the span buffer and reset the count */
+ ras.render_span( y, n, span, ras.render_span_data );
+ n = 0;
+ }
+ }
cover += (TArea)cell->cover * ( ONE_PIXEL * 2 );
area = cover - cell->area;
if ( area != 0 && cell->x >= ras.min_ex )
- gray_hline( RAS_VAR_ cell->x, y, area, 1 );
+ {
+ FT_FILL_RULE( coverage, area, fill );
+
+ span[n].coverage = (unsigned char)coverage;
+ span[n].x = (short)cell->x;
+ span[n].len = 1;
+
+ if ( ++n == FT_MAX_GRAY_SPANS )
+ {
+ /* flush the span buffer and reset the count */
+ ras.render_span( y, n, span, ras.render_span_data );
+ n = 0;
+ }
+ }
x = cell->x + 1;
}
- if ( cover != 0 )
- gray_hline( RAS_VAR_ x, y, cover, ras.max_ex - x );
+ if ( cover != 0 ) /* only if cropped */
+ {
+ FT_FILL_RULE( coverage, cover, fill );
+
+ span[n].coverage = (unsigned char)coverage;
+ span[n].x = (short)x;
+ span[n].len = (unsigned short)( ras.max_ex - x );
+
+ ++n;
+ }
- if ( ras.num_spans > 0 ) /* for FT_RASTER_FLAG_DIRECT only */
+ if ( n )
{
/* flush the span buffer and reset the count */
- ras.render_span( y, ras.num_spans, ras.spans, ras.render_span_data );
- ras.num_spans = 0;
+ ras.render_span( y, n, span, ras.render_span_data );
+ n = 0;
}
}
}
@@ -1604,7 +1880,7 @@ typedef ptrdiff_t FT_PtrDist;
}
FT_TRACE5(( "FT_Outline_Decompose: Done\n", n ));
- return 0;
+ return Smooth_Err_Ok;
Exit:
FT_TRACE5(( "FT_Outline_Decompose: Error 0x%x\n", error ));
@@ -1645,18 +1921,15 @@ typedef ptrdiff_t FT_PtrDist;
if ( continued )
FT_Trace_Enable();
- if ( !ras.invalid )
- gray_record_cell( RAS_VAR );
-
- FT_TRACE7(( "band [%d..%d]: %ld cell%s\n",
+ FT_TRACE7(( "band [%d..%d]: %ld cell%s remaining/\n",
ras.min_ey,
ras.max_ey,
- ras.num_cells,
- ras.num_cells == 1 ? "" : "s" ));
+ ras.cell_null - ras.cell_free,
+ ras.cell_null - ras.cell_free == 1 ? "" : "s" ));
}
else
{
- error = FT_THROW( Memory_Overflow );
+ error = FT_THROW( Raster_Overflow );
FT_TRACE7(( "band [%d..%d]: to be bisected\n",
ras.min_ey, ras.max_ey ));
@@ -1682,7 +1955,16 @@ typedef ptrdiff_t FT_PtrDist;
int continued = 0;
+ /* Initialize the null cell at the end of the poll. */
+ ras.cell_null = buffer + FT_MAX_GRAY_POOL - 1;
+ ras.cell_null->x = CELL_MAX_X_VALUE;
+ ras.cell_null->area = 0;
+ ras.cell_null->cover = 0;
+ ras.cell_null->next = NULL;
+
/* set up vertical bands */
+ ras.ycells = (PCell*)buffer;
+
if ( height > n )
{
/* two divisions rounded up */
@@ -1690,13 +1972,6 @@ typedef ptrdiff_t FT_PtrDist;
height = ( height + n - 1 ) / n;
}
- /* memory management */
- n = ( height * sizeof ( PCell ) + sizeof ( TCell ) - 1 ) / sizeof ( TCell );
-
- ras.cells = buffer + n;
- ras.max_cells = (FT_PtrDist)( FT_MAX_GRAY_POOL - n );
- ras.ycells = (PCell*)buffer;
-
for ( y = yMin; y < yMax; )
{
ras.min_ey = y;
@@ -1710,27 +1985,37 @@ typedef ptrdiff_t FT_PtrDist;
do
{
TCoord width = band[0] - band[1];
+ TCoord w;
int error;
- FT_MEM_ZERO( ras.ycells, height * sizeof ( PCell ) );
+ for ( w = 0; w < width; ++w )
+ ras.ycells[w] = ras.cell_null;
- ras.num_cells = 0;
- ras.invalid = 1;
+ /* memory management: skip ycells */
+ n = ( (size_t)width * sizeof ( PCell ) + sizeof ( TCell ) - 1 ) /
+ sizeof ( TCell );
+
+ ras.cell_free = buffer + n;
+ ras.cell = ras.cell_null;
ras.min_ey = band[1];
ras.max_ey = band[0];
+ ras.count_ey = width;
error = gray_convert_glyph_inner( RAS_VAR, continued );
continued = 1;
if ( !error )
{
- gray_sweep( RAS_VAR );
+ if ( ras.render_span ) /* for FT_RASTER_FLAG_DIRECT only */
+ gray_sweep_direct( RAS_VAR );
+ else
+ gray_sweep( RAS_VAR );
band--;
continue;
}
- else if ( error != ErrRaster_Memory_Overflow )
- return 1;
+ else if ( error != Smooth_Err_Raster_Overflow )
+ return error;
/* render pool overflow; we will reduce the render band by half */
width >>= 1;
@@ -1739,7 +2024,7 @@ typedef ptrdiff_t FT_PtrDist;
if ( width == 0 )
{
FT_TRACE7(( "gray_convert_glyph: rotten glyph\n" ));
- return 1;
+ return FT_THROW( Raster_Overflow );
}
band++;
@@ -1748,7 +2033,7 @@ typedef ptrdiff_t FT_PtrDist;
} while ( band >= bands );
}
- return 0;
+ return Smooth_Err_Ok;
}
@@ -1769,14 +2054,14 @@ typedef ptrdiff_t FT_PtrDist;
/* this version does not support monochrome rendering */
if ( !( params->flags & FT_RASTER_FLAG_AA ) )
- return FT_THROW( Invalid_Mode );
+ return FT_THROW( Cannot_Render_Glyph );
if ( !outline )
return FT_THROW( Invalid_Outline );
/* return immediately if the outline is empty */
if ( outline->n_points == 0 || outline->n_contours <= 0 )
- return 0;
+ return Smooth_Err_Ok;
if ( !outline->contours || !outline->points )
return FT_THROW( Invalid_Outline );
@@ -1790,11 +2075,10 @@ typedef ptrdiff_t FT_PtrDist;
if ( params->flags & FT_RASTER_FLAG_DIRECT )
{
if ( !params->gray_spans )
- return 0;
+ return Smooth_Err_Ok;
ras.render_span = (FT_Raster_Span_Func)params->gray_spans;
ras.render_span_data = params->user;
- ras.num_spans = 0;
ras.min_ex = params->clip_box.xMin;
ras.min_ey = params->clip_box.yMin;
@@ -1809,7 +2093,7 @@ typedef ptrdiff_t FT_PtrDist;
/* nothing to do */
if ( !target_map->width || !target_map->rows )
- return 0;
+ return Smooth_Err_Ok;
if ( !target_map->buffer )
return FT_THROW( Invalid_Argument );
@@ -1824,7 +2108,6 @@ typedef ptrdiff_t FT_PtrDist;
ras.render_span = (FT_Raster_Span_Func)NULL;
ras.render_span_data = NULL;
- ras.num_spans = -1; /* invalid */
ras.min_ex = 0;
ras.min_ey = 0;
@@ -1834,7 +2117,7 @@ typedef ptrdiff_t FT_PtrDist;
/* exit if nothing to do */
if ( ras.max_ex <= ras.min_ex || ras.max_ey <= ras.min_ey )
- return 0;
+ return Smooth_Err_Ok;
return gray_convert_glyph( RAS_VAR );
}
@@ -1871,19 +2154,17 @@ typedef ptrdiff_t FT_PtrDist;
#else /* !STANDALONE_ */
static int
- gray_raster_new( FT_Memory memory,
- FT_Raster* araster )
+ gray_raster_new( FT_Memory memory,
+ gray_PRaster* araster )
{
FT_Error error;
gray_PRaster raster = NULL;
- *araster = 0;
- if ( !FT_ALLOC( raster, sizeof ( gray_TRaster ) ) )
- {
+ if ( !FT_NEW( raster ) )
raster->memory = memory;
- *araster = (FT_Raster)raster;
- }
+
+ *araster = raster;
return error;
}
diff --git a/thirdparty/freetype/src/smooth/ftgrays.h b/thirdparty/freetype/src/smooth/ftgrays.h
index caba632833..3dad0498dc 100644
--- a/thirdparty/freetype/src/smooth/ftgrays.h
+++ b/thirdparty/freetype/src/smooth/ftgrays.h
@@ -4,7 +4,7 @@
*
* FreeType smooth renderer declaration
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/smooth/ftsmerrs.h b/thirdparty/freetype/src/smooth/ftsmerrs.h
index e93f3df9b3..dc2c40cc9f 100644
--- a/thirdparty/freetype/src/smooth/ftsmerrs.h
+++ b/thirdparty/freetype/src/smooth/ftsmerrs.h
@@ -4,7 +4,7 @@
*
* smooth renderer error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/smooth/ftsmooth.c b/thirdparty/freetype/src/smooth/ftsmooth.c
index 5d66bd6fc4..bea3b4a800 100644
--- a/thirdparty/freetype/src/smooth/ftsmooth.c
+++ b/thirdparty/freetype/src/smooth/ftsmooth.c
@@ -4,7 +4,7 @@
*
* Anti-aliasing renderer interface (body).
*
- * Copyright (C) 2000-2020 by
+ * Copyright (C) 2000-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/smooth/ftsmooth.h b/thirdparty/freetype/src/smooth/ftsmooth.h
index 22a88d54ec..2dd81e84b8 100644
--- a/thirdparty/freetype/src/smooth/ftsmooth.h
+++ b/thirdparty/freetype/src/smooth/ftsmooth.h
@@ -4,7 +4,7 @@
*
* Anti-aliasing renderer interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/smooth/module.mk b/thirdparty/freetype/src/smooth/module.mk
deleted file mode 100644
index 9b1507f1e0..0000000000
--- a/thirdparty/freetype/src/smooth/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 smooth renderer module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += SMOOTH_RENDERER
-
-define SMOOTH_RENDERER
-$(OPEN_DRIVER) FT_Renderer_Class, ft_smooth_renderer_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)smooth $(ECHO_DRIVER_DESC)anti-aliased bitmap renderer$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/smooth/rules.mk b/thirdparty/freetype/src/smooth/rules.mk
deleted file mode 100644
index b08056fac5..0000000000
--- a/thirdparty/freetype/src/smooth/rules.mk
+++ /dev/null
@@ -1,73 +0,0 @@
-#
-# FreeType 2 smooth renderer module build rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# smooth driver directory
-#
-SMOOTH_DIR := $(SRC_DIR)/smooth
-
-
-# compilation flags for the driver
-#
-SMOOTH_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(SMOOTH_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# smooth driver sources (i.e., C files)
-#
-SMOOTH_DRV_SRC := $(SMOOTH_DIR)/ftgrays.c \
- $(SMOOTH_DIR)/ftsmooth.c
-
-
-# smooth driver headers
-#
-SMOOTH_DRV_H := $(SMOOTH_DRV_SRC:%c=%h) \
- $(SMOOTH_DIR)/ftsmerrs.h
-
-
-# smooth driver object(s)
-#
-# SMOOTH_DRV_OBJ_M is used during `multi' builds.
-# SMOOTH_DRV_OBJ_S is used during `single' builds.
-#
-SMOOTH_DRV_OBJ_M := $(SMOOTH_DRV_SRC:$(SMOOTH_DIR)/%.c=$(OBJ_DIR)/%.$O)
-SMOOTH_DRV_OBJ_S := $(OBJ_DIR)/smooth.$O
-
-# smooth driver source file for single build
-#
-SMOOTH_DRV_SRC_S := $(SMOOTH_DIR)/smooth.c
-
-
-# smooth driver - single object
-#
-$(SMOOTH_DRV_OBJ_S): $(SMOOTH_DRV_SRC_S) $(SMOOTH_DRV_SRC) \
- $(FREETYPE_H) $(SMOOTH_DRV_H)
- $(SMOOTH_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(SMOOTH_DRV_SRC_S))
-
-
-# smooth driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(SMOOTH_DIR)/%.c $(FREETYPE_H) $(SMOOTH_DRV_H)
- $(SMOOTH_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(SMOOTH_DRV_OBJ_S)
-DRV_OBJS_M += $(SMOOTH_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/smooth/smooth.c b/thirdparty/freetype/src/smooth/smooth.c
index 04b531c087..9e25440635 100644
--- a/thirdparty/freetype/src/smooth/smooth.c
+++ b/thirdparty/freetype/src/smooth/smooth.c
@@ -4,7 +4,7 @@
*
* FreeType anti-aliasing rasterer module component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/module.mk b/thirdparty/freetype/src/truetype/module.mk
deleted file mode 100644
index 2d8d39d1f7..0000000000
--- a/thirdparty/freetype/src/truetype/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 TrueType module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += TRUETYPE_DRIVER
-
-define TRUETYPE_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, tt_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)truetype $(ECHO_DRIVER_DESC)Windows/Mac font files with extension *.ttf or *.ttc$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/truetype/rules.mk b/thirdparty/freetype/src/truetype/rules.mk
deleted file mode 100644
index 2f6fecfc44..0000000000
--- a/thirdparty/freetype/src/truetype/rules.mk
+++ /dev/null
@@ -1,76 +0,0 @@
-#
-# FreeType 2 TrueType driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# TrueType driver directory
-#
-TT_DIR := $(SRC_DIR)/truetype
-
-
-# compilation flags for the driver
-#
-TT_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(TT_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# TrueType driver sources (i.e., C files)
-#
-TT_DRV_SRC := $(TT_DIR)/ttdriver.c \
- $(TT_DIR)/ttgload.c \
- $(TT_DIR)/ttgxvar.c \
- $(TT_DIR)/ttinterp.c \
- $(TT_DIR)/ttobjs.c \
- $(TT_DIR)/ttpload.c \
- $(TT_DIR)/ttsubpix.c
-
-# TrueType driver headers
-#
-TT_DRV_H := $(TT_DRV_SRC:%.c=%.h) \
- $(TT_DIR)/tterrors.h
-
-
-# TrueType driver object(s)
-#
-# TT_DRV_OBJ_M is used during `multi' builds
-# TT_DRV_OBJ_S is used during `single' builds
-#
-TT_DRV_OBJ_M := $(TT_DRV_SRC:$(TT_DIR)/%.c=$(OBJ_DIR)/%.$O)
-TT_DRV_OBJ_S := $(OBJ_DIR)/truetype.$O
-
-# TrueType driver source file for single build
-#
-TT_DRV_SRC_S := $(TT_DIR)/truetype.c
-
-
-# TrueType driver - single object
-#
-$(TT_DRV_OBJ_S): $(TT_DRV_SRC_S) $(TT_DRV_SRC) $(FREETYPE_H) $(TT_DRV_H)
- $(TT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(TT_DRV_SRC_S))
-
-
-# driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(TT_DIR)/%.c $(FREETYPE_H) $(TT_DRV_H)
- $(TT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(TT_DRV_OBJ_S)
-DRV_OBJS_M += $(TT_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/truetype/truetype.c b/thirdparty/freetype/src/truetype/truetype.c
index 41b6808a84..4232aca6ec 100644
--- a/thirdparty/freetype/src/truetype/truetype.c
+++ b/thirdparty/freetype/src/truetype/truetype.c
@@ -4,7 +4,7 @@
*
* FreeType TrueType driver component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/ttdriver.c b/thirdparty/freetype/src/truetype/ttdriver.c
index bf830b1418..6fcfdb23e4 100644
--- a/thirdparty/freetype/src/truetype/ttdriver.c
+++ b/thirdparty/freetype/src/truetype/ttdriver.c
@@ -4,7 +4,7 @@
*
* TrueType font driver implementation (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -108,7 +108,7 @@
return error;
}
- FT_TRACE0(( "tt_property_set: missing property `%s'\n",
+ FT_TRACE2(( "tt_property_set: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -135,7 +135,7 @@
return error;
}
- FT_TRACE0(( "tt_property_get: missing property `%s'\n",
+ FT_TRACE2(( "tt_property_get: missing property `%s'\n",
property_name ));
return FT_THROW( Missing_Property );
}
@@ -354,7 +354,16 @@
#endif /* TT_CONFIG_OPTION_EMBEDDED_BITMAPS */
- FT_Request_Metrics( size->face, req );
+ {
+ FT_Error err = FT_Request_Metrics( size->face, req );
+
+
+ if ( err )
+ {
+ error = err;
+ goto Exit;
+ }
+ }
if ( FT_IS_SCALABLE( size->face ) )
{
@@ -382,6 +391,7 @@
#endif
}
+ Exit:
return error;
}
diff --git a/thirdparty/freetype/src/truetype/ttdriver.h b/thirdparty/freetype/src/truetype/ttdriver.h
index ee1438eb6e..4e6d52d22c 100644
--- a/thirdparty/freetype/src/truetype/ttdriver.h
+++ b/thirdparty/freetype/src/truetype/ttdriver.h
@@ -4,7 +4,7 @@
*
* High-level TrueType driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/tterrors.h b/thirdparty/freetype/src/truetype/tterrors.h
index efeafd3a1b..0ce247e376 100644
--- a/thirdparty/freetype/src/truetype/tterrors.h
+++ b/thirdparty/freetype/src/truetype/tterrors.h
@@ -4,7 +4,7 @@
*
* TrueType error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/ttgload.c b/thirdparty/freetype/src/truetype/ttgload.c
index 1dd319dcbf..11968f6fdc 100644
--- a/thirdparty/freetype/src/truetype/ttgload.c
+++ b/thirdparty/freetype/src/truetype/ttgload.c
@@ -4,7 +4,7 @@
*
* TrueType Glyph Loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -197,10 +197,17 @@
}
#endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */
- if ( !loader->linear_def )
+#ifdef FT_CONFIG_OPTION_INCREMENTAL
+ /* With the incremental interface, these values are set by */
+ /* a call to `tt_get_metrics_incremental'. */
+ if ( face->root.internal->incremental_interface == NULL )
+#endif
{
- loader->linear_def = 1;
- loader->linear = advance_width;
+ if ( !loader->linear_def )
+ {
+ loader->linear_def = 1;
+ loader->linear = advance_width;
+ }
}
return FT_Err_Ok;
@@ -210,8 +217,8 @@
#ifdef FT_CONFIG_OPTION_INCREMENTAL
static void
- tt_get_metrics_incr_overrides( TT_Loader loader,
- FT_UInt glyph_index )
+ tt_get_metrics_incremental( TT_Loader loader,
+ FT_UInt glyph_index )
{
TT_Face face = loader->face;
@@ -451,7 +458,7 @@
(void*)&load->exec->glyphIns,
n_ins );
- load->exec->glyphSize = (FT_UShort)tmp;
+ load->exec->glyphSize = (FT_UInt)tmp;
if ( error )
return error;
@@ -736,12 +743,14 @@
subglyph->transform.xx / 65536.0,
subglyph->transform.yy / 65536.0 ));
else if ( subglyph->flags & WE_HAVE_A_2X2 )
- FT_TRACE7(( " scaling: xx=%f, yx=%f\n"
- " xy=%f, yy=%f\n",
+ {
+ FT_TRACE7(( " scaling: xx=%f, yx=%f\n",
subglyph->transform.xx / 65536.0,
- subglyph->transform.yx / 65536.0,
+ subglyph->transform.yx / 65536.0 ));
+ FT_TRACE7(( " xy=%f, yy=%f\n",
subglyph->transform.xy / 65536.0,
subglyph->transform.yy / 65536.0 ));
+ }
subglyph++;
}
@@ -1383,7 +1392,7 @@
FT_READ_USHORT( n_ins ) )
return error;
- FT_TRACE5(( " Instructions size = %d\n", n_ins ));
+ FT_TRACE5(( " Instructions size = %hu\n", n_ins ));
/* check it */
max_ins = loader->face->max_profile.maxSizeOfInstructions;
@@ -1391,10 +1400,10 @@
{
/* don't trust `maxSizeOfInstructions'; */
/* only do a rough safety check */
- if ( (FT_Int)n_ins > loader->byte_len )
+ if ( n_ins > loader->byte_len )
{
FT_TRACE1(( "TT_Process_Composite_Glyph:"
- " too many instructions (%d) for glyph with length %d\n",
+ " too many instructions (%hu) for glyph with length %u\n",
n_ins, loader->byte_len ));
return FT_THROW( Too_Many_Hints );
}
@@ -1677,7 +1686,7 @@
FT_ZERO( &inc_stream );
FT_Stream_OpenMemory( &inc_stream,
glyph_data.pointer,
- (FT_ULong)glyph_data.length );
+ glyph_data.length );
loader->stream = &inc_stream;
}
@@ -1685,8 +1694,7 @@
#endif /* FT_CONFIG_OPTION_INCREMENTAL */
- offset = tt_face_get_location( face, glyph_index,
- (FT_UInt*)&loader->byte_len );
+ offset = tt_face_get_location( face, glyph_index, &loader->byte_len );
if ( loader->byte_len > 0 )
{
@@ -1705,7 +1713,7 @@
error = face->access_glyph_frame( loader, glyph_index,
face->glyf_offset + offset,
- (FT_UInt)loader->byte_len );
+ loader->byte_len );
if ( error )
goto Exit;
@@ -1739,13 +1747,11 @@
if ( loader->byte_len == 0 || loader->n_contours == 0 )
{
- /* must initialize points before (possibly) overriding */
- /* glyph metrics from the incremental interface */
- tt_loader_set_pp( loader );
-
#ifdef FT_CONFIG_OPTION_INCREMENTAL
- tt_get_metrics_incr_overrides( loader, glyph_index );
+ tt_get_metrics_incremental( loader, glyph_index );
#endif
+ tt_loader_set_pp( loader );
+
#ifdef TT_CONFIG_OPTION_GX_VAR_SUPPORT
@@ -1828,13 +1834,11 @@
goto Exit;
}
- /* must initialize phantom points before (possibly) overriding */
- /* glyph metrics from the incremental interface */
- tt_loader_set_pp( loader );
-
#ifdef FT_CONFIG_OPTION_INCREMENTAL
- tt_get_metrics_incr_overrides( loader, glyph_index );
+ tt_get_metrics_incremental( loader, glyph_index );
#endif
+ tt_loader_set_pp( loader );
+
/***********************************************************************/
/***********************************************************************/
@@ -1844,7 +1848,7 @@
/* (which consists of 10 bytes) */
error = face->access_glyph_frame( loader, glyph_index,
face->glyf_offset + offset + 10,
- (FT_UInt)loader->byte_len - 10 );
+ loader->byte_len - 10 );
if ( error )
goto Exit;
@@ -1898,7 +1902,7 @@
/* clear the nodes filled by sibling chains */
node = ft_list_get_node_at( &loader->composites, recurse_count );
for ( node2 = node; node2; node2 = node2->next )
- node2->data = (void*)FT_ULONG_MAX;
+ node2->data = (void*)-1;
/* check whether we already have a composite glyph with this index */
if ( FT_List_Find( &loader->composites,
@@ -1915,7 +1919,7 @@
else
{
- if ( FT_NEW( node ) )
+ if ( FT_QNEW( node ) )
goto Exit;
node->data = FT_UINT_TO_POINTER( glyph_index );
FT_List_Add( &loader->composites, node );
@@ -2100,7 +2104,7 @@
FT_UInt num_base_subgs = gloader->base.num_subglyphs;
FT_Stream old_stream = loader->stream;
- FT_Int old_byte_len = loader->byte_len;
+ FT_UInt old_byte_len = loader->byte_len;
FT_GlyphLoader_Add( gloader );
@@ -2713,6 +2717,9 @@
error = tt_size_run_prep( size, pedantic );
if ( error )
return error;
+ error = TT_Load_Context( exec, face, size );
+ if ( error )
+ return error;
}
/* check whether the cvt program has disabled hinting */
diff --git a/thirdparty/freetype/src/truetype/ttgload.h b/thirdparty/freetype/src/truetype/ttgload.h
index 8f72cd558c..78fdeaa73d 100644
--- a/thirdparty/freetype/src/truetype/ttgload.h
+++ b/thirdparty/freetype/src/truetype/ttgload.h
@@ -4,7 +4,7 @@
*
* TrueType Glyph Loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/ttgxvar.c b/thirdparty/freetype/src/truetype/ttgxvar.c
index b462263de1..7f2db0cbdc 100644
--- a/thirdparty/freetype/src/truetype/ttgxvar.c
+++ b/thirdparty/freetype/src/truetype/ttgxvar.c
@@ -4,7 +4,7 @@
*
* TrueType GX Font Variation loader
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, Werner Lemberg, and George Williams.
*
* This file is part of the FreeType project, and may only be used,
@@ -178,7 +178,7 @@
/* in the nested loops below we increase `i' twice; */
/* it is faster to simply allocate one more slot */
/* than to add another test within the loop */
- if ( FT_NEW_ARRAY( points, n + 1 ) )
+ if ( FT_QNEW_ARRAY( points, n + 1 ) )
return NULL;
*point_cnt = n;
@@ -264,55 +264,80 @@
FT_Fixed *deltas = NULL;
FT_UInt runcnt, cnt;
FT_UInt i, j;
+ FT_UInt bytes_used;
FT_Memory memory = stream->memory;
FT_Error error = FT_Err_Ok;
FT_UNUSED( error );
- if ( delta_cnt > size )
- {
- FT_TRACE1(( "ft_var_readpackeddeltas: number of points too large\n" ));
+ if ( FT_QNEW_ARRAY( deltas, delta_cnt ) )
return NULL;
- }
- if ( FT_NEW_ARRAY( deltas, delta_cnt ) )
- return NULL;
+ i = 0;
+ bytes_used = 0;
- i = 0;
- while ( i < delta_cnt )
+ while ( i < delta_cnt && bytes_used < size )
{
runcnt = FT_GET_BYTE();
cnt = runcnt & GX_DT_DELTA_RUN_COUNT_MASK;
+ bytes_used++;
+
if ( runcnt & GX_DT_DELTAS_ARE_ZERO )
{
- /* `runcnt' zeroes get added */
+ /* `cnt` + 1 zeroes get added */
for ( j = 0; j <= cnt && i < delta_cnt; j++ )
deltas[i++] = 0;
}
else if ( runcnt & GX_DT_DELTAS_ARE_WORDS )
{
- /* `runcnt' shorts from the stack */
+ /* `cnt` + 1 shorts from the stack */
+ bytes_used += 2 * ( cnt + 1 );
+ if ( bytes_used > size )
+ {
+ FT_TRACE1(( "ft_var_readpackeddeltas:"
+ " number of short deltas too large\n" ));
+ goto Fail;
+ }
+
for ( j = 0; j <= cnt && i < delta_cnt; j++ )
deltas[i++] = FT_intToFixed( FT_GET_SHORT() );
}
else
{
- /* `runcnt' signed bytes from the stack */
+ /* `cnt` + 1 signed bytes from the stack */
+ bytes_used += cnt + 1;
+ if ( bytes_used > size )
+ {
+ FT_TRACE1(( "ft_var_readpackeddeltas:"
+ " number of byte deltas too large\n" ));
+ goto Fail;
+ }
+
for ( j = 0; j <= cnt && i < delta_cnt; j++ )
deltas[i++] = FT_intToFixed( FT_GET_CHAR() );
}
if ( j <= cnt )
{
- /* bad format */
- FT_FREE( deltas );
- return NULL;
+ FT_TRACE1(( "ft_var_readpackeddeltas:"
+ " number of deltas too large\n" ));
+ goto Fail;
}
}
+ if ( i < delta_cnt )
+ {
+ FT_TRACE1(( "ft_var_readpackeddeltas: not enough deltas\n" ));
+ goto Fail;
+ }
+
return deltas;
+
+ Fail:
+ FT_FREE( deltas );
+ return NULL;
}
@@ -371,12 +396,13 @@
if ( axisCount != (FT_Long)blend->mmvar->num_axis )
{
- FT_TRACE2(( "ft_var_load_avar: number of axes in `avar' and `fvar'\n"
- " table are different\n" ));
+ FT_TRACE2(( "ft_var_load_avar:"
+ " number of axes in `avar' and `fvar'\n" ));
+ FT_TRACE2(( " table are different\n" ));
goto Exit;
}
- if ( FT_NEW_ARRAY( blend->avar_segment, axisCount ) )
+ if ( FT_QNEW_ARRAY( blend->avar_segment, axisCount ) )
goto Exit;
segment = &blend->avar_segment[0];
@@ -385,8 +411,8 @@
FT_TRACE5(( " axis %d:\n", i ));
segment->pairCount = FT_GET_USHORT();
- if ( (FT_ULong)segment->pairCount * 4 > table_len ||
- FT_NEW_ARRAY( segment->correspondence, segment->pairCount ) )
+ if ( (FT_ULong)segment->pairCount * 4 > table_len ||
+ FT_QNEW_ARRAY( segment->correspondence, segment->pairCount ) )
{
/* Failure. Free everything we have done so far. We must do */
/* it right now since loading the `avar' table is optional. */
@@ -431,7 +457,8 @@
FT_UShort format;
FT_ULong region_offset;
FT_UInt i, j, k;
- FT_UInt shortDeltaCount;
+ FT_UInt wordDeltaCount;
+ FT_Bool long_words;
GX_Blend blend = face->blend;
GX_ItemVarData varData;
@@ -466,7 +493,7 @@
/* make temporary copy of item variation data offsets; */
/* we will parse region list first, then come back */
- if ( FT_NEW_ARRAY( dataOffsetArray, itemStore->dataCount ) )
+ if ( FT_QNEW_ARRAY( dataOffsetArray, itemStore->dataCount ) )
goto Exit;
for ( i = 0; i < itemStore->dataCount; i++ )
@@ -486,13 +513,22 @@
if ( itemStore->axisCount != (FT_Long)blend->mmvar->num_axis )
{
FT_TRACE2(( "ft_var_load_item_variation_store:"
- " number of axes in item variation store\n"
- " "
+ " number of axes in item variation store\n" ));
+ FT_TRACE2(( " "
" and `fvar' table are different\n" ));
error = FT_THROW( Invalid_Table );
goto Exit;
}
+ /* new constraint in OpenType 1.8.4 */
+ if ( itemStore->regionCount >= 32768U )
+ {
+ FT_TRACE2(( "ft_var_load_item_variation_store:"
+ " too many variation region tables\n" ));
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
if ( FT_NEW_ARRAY( itemStore->varRegionList, itemStore->regionCount ) )
goto Exit;
@@ -537,15 +573,18 @@
goto Exit;
if ( FT_READ_USHORT( varData->itemCount ) ||
- FT_READ_USHORT( shortDeltaCount ) ||
+ FT_READ_USHORT( wordDeltaCount ) ||
FT_READ_USHORT( varData->regionIdxCount ) )
goto Exit;
+ long_words = !!( wordDeltaCount & 0x8000 );
+ wordDeltaCount &= 0x7FFF;
+
/* check some data consistency */
- if ( shortDeltaCount > varData->regionIdxCount )
+ if ( wordDeltaCount > varData->regionIdxCount )
{
FT_TRACE2(( "bad short count %d or region count %d\n",
- shortDeltaCount,
+ wordDeltaCount,
varData->regionIdxCount ));
error = FT_THROW( Invalid_Table );
goto Exit;
@@ -581,39 +620,52 @@
/* Parse delta set. */
/* */
- /* On input, deltas are (shortDeltaCount + regionIdxCount) bytes */
- /* each; on output, deltas are expanded to `regionIdxCount' shorts */
- /* each. */
+ /* On input, deltas are (wordDeltaCount + regionIdxCount) bytes */
+ /* each if `long_words` isn't set, and twice as much otherwise. */
+ /* */
+ /* On output, deltas are expanded to `regionIdxCount` shorts each. */
if ( FT_NEW_ARRAY( varData->deltaSet,
varData->regionIdxCount * varData->itemCount ) )
goto Exit;
- /* the delta set is stored as a 2-dimensional array of shorts; */
- /* sign-extend signed bytes to signed shorts */
- for ( j = 0; j < varData->itemCount * varData->regionIdxCount; )
+ /* the delta set is stored as a 2-dimensional array of shorts */
+ if ( long_words )
+ {
+ /* new in OpenType 1.9, currently for 'COLR' table only; */
+ /* the deltas are interpreted as 16.16 fixed-point scaling values */
+
+ /* not supported yet */
+
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+ else
{
- for ( k = 0; k < shortDeltaCount; k++, j++ )
+ for ( j = 0; j < varData->itemCount * varData->regionIdxCount; )
{
- /* read the short deltas */
- FT_Short delta;
+ for ( k = 0; k < wordDeltaCount; k++, j++ )
+ {
+ /* read the short deltas */
+ FT_Short delta;
- if ( FT_READ_SHORT( delta ) )
- goto Exit;
+ if ( FT_READ_SHORT( delta ) )
+ goto Exit;
- varData->deltaSet[j] = delta;
- }
+ varData->deltaSet[j] = delta;
+ }
- for ( ; k < varData->regionIdxCount; k++, j++ )
- {
- /* read the (signed) byte deltas */
- FT_Char delta;
+ for ( ; k < varData->regionIdxCount; k++, j++ )
+ {
+ /* read the (signed) byte deltas */
+ FT_Char delta;
- if ( FT_READ_CHAR( delta ) )
- goto Exit;
+ if ( FT_READ_CHAR( delta ) )
+ goto Exit;
- varData->deltaSet[j] = delta;
+ varData->deltaSet[j] = delta;
+ }
}
}
}
@@ -629,37 +681,66 @@
ft_var_load_delta_set_index_mapping( TT_Face face,
FT_ULong offset,
GX_DeltaSetIdxMap map,
- GX_ItemVarStore itemStore )
+ GX_ItemVarStore itemStore,
+ FT_ULong table_len )
{
FT_Stream stream = FT_FACE_STREAM( face );
FT_Memory memory = stream->memory;
- FT_Error error;
+ FT_Error error;
- FT_UShort format;
- FT_UInt entrySize;
- FT_UInt innerBitCount;
- FT_UInt innerIndexMask;
- FT_UInt i, j;
+ FT_Byte format;
+ FT_Byte entryFormat;
+ FT_UInt entrySize;
+ FT_UInt innerBitCount;
+ FT_UInt innerIndexMask;
+ FT_ULong i;
+ FT_UInt j;
- if ( FT_STREAM_SEEK( offset ) ||
- FT_READ_USHORT( format ) ||
- FT_READ_USHORT( map->mapCount ) )
+ if ( FT_STREAM_SEEK( offset ) ||
+ FT_READ_BYTE( format ) ||
+ FT_READ_BYTE( entryFormat ) )
goto Exit;
- if ( format & 0xFFC0 )
+ if ( format == 0 )
+ {
+ if ( FT_READ_USHORT( map->mapCount ) )
+ goto Exit;
+ }
+ else if ( format == 1 ) /* new in OpenType 1.9 */
+ {
+ if ( FT_READ_ULONG( map->mapCount ) )
+ goto Exit;
+ }
+ else
{
FT_TRACE2(( "bad map format %d\n", format ));
error = FT_THROW( Invalid_Table );
goto Exit;
}
+ if ( entryFormat & 0xC0 )
+ {
+ FT_TRACE2(( "bad entry format %d\n", format ));
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
/* bytes per entry: 1, 2, 3, or 4 */
- entrySize = ( ( format & 0x0030 ) >> 4 ) + 1;
- innerBitCount = ( format & 0x000F ) + 1;
+ entrySize = ( ( entryFormat & 0x30 ) >> 4 ) + 1;
+ innerBitCount = ( entryFormat & 0x0F ) + 1;
innerIndexMask = ( 1 << innerBitCount ) - 1;
+ /* rough sanity check */
+ if ( map->mapCount * entrySize > table_len )
+ {
+ FT_TRACE1(( "ft_var_load_delta_set_index_mapping:"
+ " invalid number of delta-set index mappings\n" ));
+ error = FT_THROW( Invalid_Table );
+ goto Exit;
+ }
+
if ( FT_NEW_ARRAY( map->innerIndex, map->mapCount ) )
goto Exit;
@@ -688,7 +769,7 @@
if ( outerIndex >= itemStore->dataCount )
{
- FT_TRACE2(( "outerIndex[%d] == %d out of range\n",
+ FT_TRACE2(( "outerIndex[%ld] == %d out of range\n",
i,
outerIndex ));
error = FT_THROW( Invalid_Table );
@@ -701,7 +782,7 @@
if ( innerIndex >= itemStore->varData[outerIndex].itemCount )
{
- FT_TRACE2(( "innerIndex[%d] == %d out of range\n",
+ FT_TRACE2(( "innerIndex[%ld] == %d out of range\n",
i,
innerIndex ));
error = FT_THROW( Invalid_Table );
@@ -826,7 +907,8 @@
face,
table_offset + widthMap_offset,
&table->widthMap,
- &table->itemStore );
+ &table->itemStore,
+ table_len );
if ( error )
goto Exit;
}
@@ -1515,8 +1597,9 @@
if ( gvar_head.axisCount != (FT_UShort)blend->mmvar->num_axis )
{
- FT_TRACE1(( "ft_var_load_gvar: number of axes in `gvar' and `cvar'\n"
- " table are different\n" ));
+ FT_TRACE1(( "ft_var_load_gvar:"
+ " number of axes in `gvar' and `cvar'\n" ));
+ FT_TRACE1(( " table are different\n" ));
error = FT_THROW( Invalid_Table );
goto Exit;
}
@@ -1558,7 +1641,7 @@
goto Exit;
/* offsets (one more offset than glyphs, to mark size of last) */
- if ( FT_NEW_ARRAY( blend->glyphoffsets, gvar_head.glyphCount + 1 ) )
+ if ( FT_QNEW_ARRAY( blend->glyphoffsets, gvar_head.glyphCount + 1 ) )
goto Fail2;
if ( gvar_head.flags & 1 )
@@ -1637,8 +1720,8 @@
goto Fail;
}
- if ( FT_NEW_ARRAY( blend->tuplecoords,
- gvar_head.axisCount * gvar_head.globalCoordCount ) )
+ if ( FT_QNEW_ARRAY( blend->tuplecoords,
+ gvar_head.axisCount * gvar_head.globalCoordCount ) )
goto Fail2;
for ( i = 0; i < gvar_head.globalCoordCount; i++ )
@@ -1841,25 +1924,22 @@
FT_TRACE5(( " %d: %.5f\n", i, coord / 65536.0 ));
if ( coord > a->maximum || coord < a->minimum )
{
- FT_TRACE1((
- "ft_var_to_normalized: design coordinate %.5f\n"
- " is out of range [%.5f;%.5f]; clamping\n",
- coord / 65536.0,
- a->minimum / 65536.0,
- a->maximum / 65536.0 ));
-
- if ( coord > a->maximum )
- coord = a->maximum;
- else
- coord = a->minimum;
+ FT_TRACE1(( "ft_var_to_normalized: design coordinate %.5f\n",
+ coord / 65536.0 ));
+ FT_TRACE1(( " is out of range [%.5f;%.5f];"
+ " clamping\n",
+ a->minimum / 65536.0,
+ a->maximum / 65536.0 ));
}
- if ( coord < a->def )
- normalized[i] = -FT_DivFix( SUB_LONG( coord, a->def ),
- SUB_LONG( a->minimum, a->def ) );
- else if ( coord > a->def )
- normalized[i] = FT_DivFix( SUB_LONG( coord, a->def ),
+ if ( coord > a->def )
+ normalized[i] = coord >= a->maximum ? 0x10000L :
+ FT_DivFix( SUB_LONG( coord, a->def ),
SUB_LONG( a->maximum, a->def ) );
+ else if ( coord < a->def )
+ normalized[i] = coord <= a->minimum ? -0x10000L :
+ FT_DivFix( SUB_LONG( coord, a->def ),
+ SUB_LONG( a->def, a->minimum ) );
else
normalized[i] = 0;
}
@@ -2049,7 +2129,7 @@
FT_Var_Axis* a;
FT_Fixed* c;
FT_Var_Named_Style* ns;
- GX_FVar_Head fvar_head;
+ GX_FVar_Head fvar_head = { 0, 0, 0, 0, 0, 0 };
FT_Bool usePsName = 0;
FT_UInt num_instances;
FT_UInt num_axes;
@@ -2115,8 +2195,8 @@
if ( FT_SET_ERROR( face->goto_table( face, TTAG_CFF2,
stream, &table_len ) ) )
{
- FT_TRACE1(( "\n"
- "TT_Get_MM_Var: `gvar' or `CFF2' table is missing\n" ));
+ FT_TRACE1(( "\n" ));
+ FT_TRACE1(( "TT_Get_MM_Var: `gvar' or `CFF2' table is missing\n" ));
goto Exit;
}
}
@@ -2544,17 +2624,17 @@
num_coords = mmvar->num_axis;
}
- FT_TRACE5(( "TT_Set_MM_Blend:\n"
- " normalized design coordinates:\n" ));
+ FT_TRACE5(( "TT_Set_MM_Blend:\n" ));
+ FT_TRACE5(( " normalized design coordinates:\n" ));
for ( i = 0; i < num_coords; i++ )
{
FT_TRACE5(( " %.5f\n", coords[i] / 65536.0 ));
if ( coords[i] < -0x00010000L || coords[i] > 0x00010000L )
{
- FT_TRACE1(( "TT_Set_MM_Blend: normalized design coordinate %.5f\n"
- " is out of range [-1;1]\n",
+ FT_TRACE1(( "TT_Set_MM_Blend: normalized design coordinate %.5f\n",
coords[i] / 65536.0 ));
+ FT_TRACE1(( " is out of range [-1;1]\n" ));
error = FT_THROW( Invalid_Argument );
goto Exit;
}
@@ -2652,9 +2732,10 @@
}
blend->num_axis = mmvar->num_axis;
- FT_MEM_COPY( blend->normalizedcoords,
- coords,
- num_coords * sizeof ( FT_Fixed ) );
+ if ( coords )
+ FT_MEM_COPY( blend->normalizedcoords,
+ coords,
+ num_coords * sizeof ( FT_Fixed ) );
if ( set_design_coords )
ft_var_to_design( face,
@@ -2952,8 +3033,8 @@
if ( !face->blend->avar_loaded )
ft_var_load_avar( face );
- FT_TRACE5(( "TT_Set_Var_Design:\n"
- " normalized design coordinates:\n" ));
+ FT_TRACE5(( "TT_Set_Var_Design:\n" ));
+ FT_TRACE5(( " normalized design coordinates:\n" ));
ft_var_to_normalized( face, num_coords, blend->coords, normalized );
error = tt_set_mm_blend( face, mmvar->num_axis, normalized, 0 );
@@ -3152,6 +3233,8 @@
/*************************************************************************/
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+
static FT_Error
tt_cvt_ready_iterator( FT_ListNode node,
void* user )
@@ -3166,6 +3249,9 @@
return FT_Err_Ok;
}
+#endif /* TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+
+
/**************************************************************************
*
@@ -3194,6 +3280,8 @@
tt_face_vary_cvt( TT_Face face,
FT_Stream stream )
{
+#ifdef TT_CONFIG_OPTION_BYTECODE_INTERPRETER
+
FT_Error error;
FT_Memory memory = stream->memory;
@@ -3229,16 +3317,16 @@
if ( !blend )
{
- FT_TRACE2(( "\n"
- "tt_face_vary_cvt: no blend specified\n" ));
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( "tt_face_vary_cvt: no blend specified\n" ));
error = FT_Err_Ok;
goto Exit;
}
if ( !face->cvt )
{
- FT_TRACE2(( "\n"
- "tt_face_vary_cvt: no `cvt ' table\n" ));
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( "tt_face_vary_cvt: no `cvt ' table\n" ));
error = FT_Err_Ok;
goto Exit;
}
@@ -3397,9 +3485,7 @@
point_count == 0 ? face->cvt_size
: point_count );
- if ( !points ||
- !deltas ||
- ( localpoints == ALL_POINTS && point_count != face->cvt_size ) )
+ if ( !points || !deltas )
; /* failure, ignore it */
else if ( localpoints == ALL_POINTS )
@@ -3514,6 +3600,16 @@
NULL );
return error;
+
+#else /* !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+
+ FT_UNUSED( face );
+ FT_UNUSED( stream );
+
+ return FT_Err_Ok;
+
+#endif /* !TT_CONFIG_OPTION_BYTECODE_INTERPRETER */
+
}
diff --git a/thirdparty/freetype/src/truetype/ttgxvar.h b/thirdparty/freetype/src/truetype/ttgxvar.h
index 26e89bcf74..ded9ea1d6d 100644
--- a/thirdparty/freetype/src/truetype/ttgxvar.h
+++ b/thirdparty/freetype/src/truetype/ttgxvar.h
@@ -4,7 +4,7 @@
*
* TrueType GX Font Variation loader (specification)
*
- * Copyright (C) 2004-2020 by
+ * Copyright (C) 2004-2021 by
* David Turner, Robert Wilhelm, Werner Lemberg and George Williams.
*
* This file is part of the FreeType project, and may only be used,
@@ -106,9 +106,9 @@ FT_BEGIN_HEADER
typedef struct GX_DeltaSetIdxMapRec_
{
- FT_UInt mapCount;
- FT_UInt* outerIndex; /* indices to item var data */
- FT_UInt* innerIndex; /* indices to delta set */
+ FT_ULong mapCount;
+ FT_UInt* outerIndex; /* indices to item var data */
+ FT_UInt* innerIndex; /* indices to delta set */
} GX_DeltaSetIdxMapRec, *GX_DeltaSetIdxMap;
diff --git a/thirdparty/freetype/src/truetype/ttinterp.c b/thirdparty/freetype/src/truetype/ttinterp.c
index 0c3cb10ae8..731095ed0c 100644
--- a/thirdparty/freetype/src/truetype/ttinterp.c
+++ b/thirdparty/freetype/src/truetype/ttinterp.c
@@ -4,7 +4,7 @@
*
* TrueType bytecode interpreter (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -251,6 +251,14 @@
FT_FREE( exec->stack );
exec->stackSize = 0;
+ /* free glyf cvt working area */
+ FT_FREE( exec->glyfCvt );
+ exec->glyfCvtSize = 0;
+
+ /* free glyf storage working area */
+ FT_FREE( exec->glyfStorage );
+ exec->glyfStoreSize = 0;
+
/* free call stack */
FT_FREE( exec->callStack );
exec->callSize = 0;
@@ -270,64 +278,6 @@
/**************************************************************************
*
* @Function:
- * Init_Context
- *
- * @Description:
- * Initializes a context object.
- *
- * @Input:
- * memory ::
- * A handle to the parent memory object.
- *
- * @InOut:
- * exec ::
- * A handle to the target execution context.
- *
- * @Return:
- * FreeType error code. 0 means success.
- */
- static FT_Error
- Init_Context( TT_ExecContext exec,
- FT_Memory memory )
- {
- FT_Error error;
-
-
- FT_TRACE1(( "Init_Context: new object at %p\n", (void *)exec ));
-
- exec->memory = memory;
- exec->callSize = 32;
-
- if ( FT_NEW_ARRAY( exec->callStack, exec->callSize ) )
- goto Fail_Memory;
-
- /* all values in the context are set to 0 already, but this is */
- /* here as a remainder */
- exec->maxPoints = 0;
- exec->maxContours = 0;
-
- exec->stackSize = 0;
- exec->glyphSize = 0;
-
- exec->stack = NULL;
- exec->glyphIns = NULL;
-
- exec->face = NULL;
- exec->size = NULL;
-
- return FT_Err_Ok;
-
- Fail_Memory:
- FT_ERROR(( "Init_Context: not enough memory for %p\n", (void *)exec ));
- TT_Done_Context( exec );
-
- return error;
- }
-
-
- /**************************************************************************
- *
- * @Function:
* Update_Max
*
* @Description:
@@ -367,7 +317,7 @@
if ( *size < new_max )
{
- if ( FT_REALLOC( *pbuff, *size * multiplier, new_max * multiplier ) )
+ if ( FT_QREALLOC( *pbuff, *size * multiplier, new_max * multiplier ) )
return error;
*size = new_max;
}
@@ -400,6 +350,8 @@
*
* @Note:
* Only the glyph loader and debugger should call this function.
+ *
+ * Note that not all members of `TT_ExecContext` get initialized.
*/
FT_LOCAL_DEF( FT_Error )
TT_Load_Context( TT_ExecContext exec,
@@ -464,13 +416,13 @@
if ( error )
return error;
- tmp = exec->glyphSize;
+ tmp = (FT_ULong)exec->glyphSize;
error = Update_Max( exec->memory,
&tmp,
sizeof ( FT_Byte ),
(void*)&exec->glyphIns,
maxp->maxSizeOfInstructions );
- exec->glyphSize = (FT_UShort)tmp;
+ exec->glyphSize = (FT_UInt)tmp;
if ( error )
return error;
@@ -609,19 +561,19 @@
memory = driver->root.root.memory;
- /* allocate object */
+ /* allocate object and zero everything inside */
if ( FT_NEW( exec ) )
goto Fail;
- /* initialize it; in case of error this deallocates `exec' too */
- error = Init_Context( exec, memory );
- if ( error )
- goto Fail;
+ /* create callStack here, other allocations delayed */
+ exec->memory = memory;
+ exec->callSize = 32;
- return exec;
+ if ( FT_QNEW_ARRAY( exec->callStack, exec->callSize ) )
+ FT_FREE( exec );
Fail:
- return NULL;
+ return exec;
}
@@ -1572,11 +1524,36 @@
}
+ static void
+ Modify_CVT_Check( TT_ExecContext exc )
+ {
+ /* TT_RunIns sets origCvt and restores cvt to origCvt when done. */
+ if ( exc->iniRange == tt_coderange_glyph &&
+ exc->cvt == exc->origCvt )
+ {
+ exc->error = Update_Max( exc->memory,
+ &exc->glyfCvtSize,
+ sizeof ( FT_Long ),
+ (void*)&exc->glyfCvt,
+ exc->cvtSize );
+ if ( exc->error )
+ return;
+
+ FT_ARRAY_COPY( exc->glyfCvt, exc->cvt, exc->glyfCvtSize );
+ exc->cvt = exc->glyfCvt;
+ }
+ }
+
+
FT_CALLBACK_DEF( void )
Write_CVT( TT_ExecContext exc,
FT_ULong idx,
FT_F26Dot6 value )
{
+ Modify_CVT_Check( exc );
+ if ( exc->error )
+ return;
+
exc->cvt[idx] = value;
}
@@ -1586,6 +1563,10 @@
FT_ULong idx,
FT_F26Dot6 value )
{
+ Modify_CVT_Check( exc );
+ if ( exc->error )
+ return;
+
exc->cvt[idx] = FT_DivFix( value, Current_Ratio( exc ) );
}
@@ -1595,6 +1576,10 @@
FT_ULong idx,
FT_F26Dot6 value )
{
+ Modify_CVT_Check( exc );
+ if ( exc->error )
+ return;
+
exc->cvt[idx] = ADD_LONG( exc->cvt[idx], value );
}
@@ -1604,6 +1589,10 @@
FT_ULong idx,
FT_F26Dot6 value )
{
+ Modify_CVT_Check( exc );
+ if ( exc->error )
+ return;
+
exc->cvt[idx] = ADD_LONG( exc->cvt[idx],
FT_DivFix( value, Current_Ratio( exc ) ) );
}
@@ -3125,7 +3114,30 @@
ARRAY_BOUND_ERROR;
}
else
+ {
+ /* TT_RunIns sets origStorage and restores storage to origStorage */
+ /* when done. */
+ if ( exc->iniRange == tt_coderange_glyph &&
+ exc->storage == exc->origStorage )
+ {
+ FT_ULong tmp = (FT_ULong)exc->glyfStoreSize;
+
+
+ exc->error = Update_Max( exc->memory,
+ &tmp,
+ sizeof ( FT_Long ),
+ (void*)&exc->glyfStorage,
+ exc->storeSize );
+ exc->glyfStoreSize = (FT_UShort)tmp;
+ if ( exc->error )
+ return;
+
+ FT_ARRAY_COPY( exc->glyfStorage, exc->storage, exc->glyfStoreSize );
+ exc->storage = exc->glyfStorage;
+ }
+
exc->storage[I] = args[1];
+ }
}
@@ -3525,7 +3537,7 @@
return;
}
- exc->IP += args[0];
+ exc->IP = ADD_LONG( exc->IP, args[0] );
if ( exc->IP < 0 ||
( exc->callTop > 0 &&
exc->IP > exc->callStack[exc->callTop - 1].Def->end ) )
@@ -3697,7 +3709,7 @@
/* FDEF is only allowed in `prep' or `fpgm' */
- if ( exc->curRange == tt_coderange_glyph )
+ if ( exc->iniRange == tt_coderange_glyph )
{
exc->error = FT_THROW( DEF_In_Glyf_Bytecode );
return;
@@ -3771,7 +3783,7 @@
if ( opcode_pointer[i] == opcode_size[i] )
{
- FT_TRACE6(( "sph: Function %d, opcode ptrn: %d, %s %s\n",
+ FT_TRACE6(( "sph: Function %d, opcode ptrn: %ld, %s %s\n",
i, n,
exc->face->root.family_name,
exc->face->root.style_name ));
@@ -4133,7 +4145,7 @@
/* we enable IDEF only in `prep' or `fpgm' */
- if ( exc->curRange == tt_coderange_glyph )
+ if ( exc->iniRange == tt_coderange_glyph )
{
exc->error = FT_THROW( DEF_In_Glyf_Bytecode );
return;
@@ -4362,7 +4374,7 @@
if ( ( opcode & 1 ) != 0 )
{
- C = B; /* counter clockwise rotation */
+ C = B; /* counter-clockwise rotation */
B = A;
A = NEG_LONG( C );
}
@@ -4991,9 +5003,9 @@
#ifdef TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY
/* Disable Type 2 Vacuform Rounds - e.g. Arial Narrow */
- if ( SUBPIXEL_HINTING_INFINALITY &&
- exc->ignore_x_mode &&
- FT_ABS( D ) == 64 )
+ if ( SUBPIXEL_HINTING_INFINALITY &&
+ exc->ignore_x_mode &&
+ ( D < 0 ? NEG_LONG( D ) : D ) == 64 )
D += 1;
#endif /* TT_SUPPORT_SUBPIXEL_HINTING_INFINALITY */
@@ -5050,7 +5062,7 @@
if ( ( opcode & 1 ) != 0 )
{
- C = B; /* counter clockwise rotation */
+ C = B; /* counter-clockwise rotation */
B = A;
A = NEG_LONG( C );
}
@@ -5074,7 +5086,7 @@
if ( ( opcode & 1 ) != 0 )
{
- C = B; /* counter clockwise rotation */
+ C = B; /* counter-clockwise rotation */
B = A;
A = NEG_LONG( C );
}
@@ -7781,8 +7793,8 @@
if ( num_twilight_points > 0xFFFFU )
num_twilight_points = 0xFFFFU;
- FT_TRACE5(( "TT_RunIns: Resetting number of twilight points\n"
- " from %d to the more reasonable value %ld\n",
+ FT_TRACE5(( "TT_RunIns: Resetting number of twilight points\n" ));
+ FT_TRACE5(( " from %d to the more reasonable value %ld\n",
exc->twilight.n_points,
num_twilight_points ));
exc->twilight.n_points = (FT_UShort)num_twilight_points;
@@ -7842,6 +7854,10 @@
exc->func_move_cvt = Move_CVT;
}
+ exc->origCvt = exc->cvt;
+ exc->origStorage = exc->storage;
+ exc->iniRange = exc->curRange;
+
Compute_Funcs( exc );
Compute_Round( exc, (FT_Byte)exc->GS.round_state );
@@ -7850,6 +7866,7 @@
exc->opcode = exc->code[exc->IP];
#ifdef FT_DEBUG_LEVEL_TRACE
+ if ( ft_trace_levels[trace_ttinterp] >= 6 )
{
FT_Long cnt = FT_MIN( 8, exc->top );
FT_Long n;
@@ -8566,8 +8583,10 @@
/* increment instruction counter and check if we didn't */
/* run this program for too long (e.g. infinite loops). */
- if ( ++ins_counter > TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES )
- return FT_THROW( Execution_Too_Long );
+ if ( ++ins_counter > TT_CONFIG_OPTION_MAX_RUNNABLE_OPCODES ) {
+ exc->error = FT_THROW( Execution_Too_Long );
+ goto LErrorLabel_;
+ }
LSuiteLabel_:
if ( exc->IP >= exc->codeSize )
@@ -8586,6 +8605,10 @@
FT_TRACE4(( " %ld instruction%s executed\n",
ins_counter,
ins_counter == 1 ? "" : "s" ));
+
+ exc->cvt = exc->origCvt;
+ exc->storage = exc->origStorage;
+
return FT_Err_Ok;
LErrorCodeOverflow_:
@@ -8595,6 +8618,9 @@
if ( exc->error && !exc->instruction_trap )
FT_TRACE1(( " The interpreter returned error 0x%x\n", exc->error ));
+ exc->cvt = exc->origCvt;
+ exc->storage = exc->origStorage;
+
return exc->error;
}
diff --git a/thirdparty/freetype/src/truetype/ttinterp.h b/thirdparty/freetype/src/truetype/ttinterp.h
index 6a83705a6c..9c01ec83cb 100644
--- a/thirdparty/freetype/src/truetype/ttinterp.h
+++ b/thirdparty/freetype/src/truetype/ttinterp.h
@@ -4,7 +4,7 @@
*
* TrueType bytecode interpreter (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -144,37 +144,41 @@ FT_BEGIN_HEADER
*
* The main structure for the interpreter which collects all necessary
* variables and states.
+ *
+ * Members that are initialized by `TT_Load_Context` are marked with '!'.
+ * Members that are initialized by `TT_Run_Context` are marked with '@'.
*/
typedef struct TT_ExecContextRec_
{
- TT_Face face;
- TT_Size size;
+ TT_Face face; /* ! */
+ TT_Size size; /* ! */
FT_Memory memory;
/* instructions state */
FT_Error error; /* last execution error */
- FT_Long top; /* top of exec. stack */
+ FT_Long top; /* @ top of exec. stack */
- FT_Long stackSize; /* size of exec. stack */
- FT_Long* stack; /* current exec. stack */
+ FT_Long stackSize; /* ! size of exec. stack */
+ FT_Long* stack; /* ! current exec. stack */
FT_Long args;
- FT_Long new_top; /* new top after exec. */
+ FT_Long new_top; /* new top after exec. */
- TT_GlyphZoneRec zp0, /* zone records */
- zp1,
- zp2,
- pts,
- twilight;
+ TT_GlyphZoneRec zp0, /* @! zone records */
+ zp1, /* @! */
+ zp2, /* @! */
+ pts, /* ! */
+ twilight; /* ! */
- FT_Long pointSize; /* in 26.6 format */
- FT_Size_Metrics metrics;
- TT_Size_Metrics tt_metrics; /* size metrics */
+ FT_Long pointSize; /* ! in 26.6 format */
+ FT_Size_Metrics metrics; /* ! */
+ TT_Size_Metrics tt_metrics; /* ! size metrics */
- TT_GraphicsState GS; /* current graphics state */
+ TT_GraphicsState GS; /* !@ current graphics state */
+ FT_Int iniRange; /* initial code range number */
FT_Int curRange; /* current code range number */
FT_Byte* code; /* current code range */
FT_Long IP; /* current instruction pointer */
@@ -185,43 +189,49 @@ FT_BEGIN_HEADER
FT_Bool step_ins; /* true if the interpreter must */
/* increment IP after ins. exec */
- FT_ULong cvtSize;
- FT_Long* cvt;
+ FT_ULong cvtSize; /* ! */
+ FT_Long* cvt; /* ! */
+ FT_ULong glyfCvtSize;
+ FT_Long* glyfCvt; /* cvt working copy for glyph */
+ FT_Long* origCvt;
- FT_UInt glyphSize; /* glyph instructions buffer size */
- FT_Byte* glyphIns; /* glyph instructions buffer */
+ FT_UInt glyphSize; /* ! glyph instructions buffer size */
+ FT_Byte* glyphIns; /* ! glyph instructions buffer */
- FT_UInt numFDefs; /* number of function defs */
- FT_UInt maxFDefs; /* maximum number of function defs */
- TT_DefArray FDefs; /* table of FDefs entries */
+ FT_UInt numFDefs; /* ! number of function defs */
+ FT_UInt maxFDefs; /* ! maximum number of function defs */
+ TT_DefArray FDefs; /* table of FDefs entries */
- FT_UInt numIDefs; /* number of instruction defs */
- FT_UInt maxIDefs; /* maximum number of ins defs */
- TT_DefArray IDefs; /* table of IDefs entries */
+ FT_UInt numIDefs; /* ! number of instruction defs */
+ FT_UInt maxIDefs; /* ! maximum number of ins defs */
+ TT_DefArray IDefs; /* table of IDefs entries */
- FT_UInt maxFunc; /* maximum function index */
- FT_UInt maxIns; /* maximum instruction index */
+ FT_UInt maxFunc; /* ! maximum function index */
+ FT_UInt maxIns; /* ! maximum instruction index */
- FT_Int callTop, /* top of call stack during execution */
- callSize; /* size of call stack */
- TT_CallStack callStack; /* call stack */
+ FT_Int callTop, /* @ top of call stack during execution */
+ callSize; /* size of call stack */
+ TT_CallStack callStack; /* call stack */
FT_UShort maxPoints; /* capacity of this context's `pts' */
FT_Short maxContours; /* record, expressed in points and */
/* contours. */
- TT_CodeRangeTable codeRangeTable; /* table of valid code ranges */
- /* useful for the debugger */
+ TT_CodeRangeTable codeRangeTable; /* ! table of valid code ranges */
+ /* useful for the debugger */
- FT_UShort storeSize; /* size of current storage */
- FT_Long* storage; /* storage area */
+ FT_UShort storeSize; /* ! size of current storage */
+ FT_Long* storage; /* ! storage area */
+ FT_UShort glyfStoreSize;
+ FT_Long* glyfStorage; /* storage working copy for glyph */
+ FT_Long* origStorage;
FT_F26Dot6 period; /* values used for the */
FT_F26Dot6 phase; /* `SuperRounding' */
FT_F26Dot6 threshold;
- FT_Bool instruction_trap; /* If `True', the interpreter will */
- /* exit after each instruction */
+ FT_Bool instruction_trap; /* ! If `True', the interpreter */
+ /* exits after each instruction */
TT_GraphicsState default_GS; /* graphics state resulting from */
/* the prep program */
@@ -238,7 +248,7 @@ FT_BEGIN_HEADER
func_dualproj, /* current dual proj. function */
func_freeProj; /* current freedom proj. func */
- TT_Move_Func func_move; /* current point move function */
+ TT_Move_Func func_move; /* current point move function */
TT_Move_Func func_move_orig; /* move original position function */
TT_Cur_Ppem_Func func_cur_ppem; /* get current proj. ppem value */
@@ -469,16 +479,15 @@ FT_BEGIN_HEADER
* TT_New_Context
*
* @Description:
- * Queries the face context for a given font. Note that there is
- * now a _single_ execution context in the TrueType driver which is
- * shared among faces.
+ * Create a `TT_ExecContext`. Note that there is now an execution
+ * context per `TT_Size` that is not shared among faces.
*
* @Input:
- * face ::
- * A handle to the source face object.
+ * driver ::
+ * A handle to the driver, used for memory allocation.
*
* @Return:
- * A handle to the execution context. Initialized for `face'.
+ * A handle to a new empty execution context.
*
* @Note:
* Only the glyph loader and debugger should call this function.
diff --git a/thirdparty/freetype/src/truetype/ttobjs.c b/thirdparty/freetype/src/truetype/ttobjs.c
index 06d4569559..93fc548447 100644
--- a/thirdparty/freetype/src/truetype/ttobjs.c
+++ b/thirdparty/freetype/src/truetype/ttobjs.c
@@ -4,7 +4,7 @@
*
* Objects manager (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -140,7 +140,31 @@
return error;
}
-#endif /* TT_USE_BYTECODE_INTERPRETER */
+
+
+ /*
+ * Fonts embedded in PDFs are made unique by prepending randomization
+ * prefixes to their names: as defined in Section 5.5.3, 'Font Subsets',
+ * of the PDF Reference, they consist of 6 uppercase letters followed by
+ * the `+` sign. For safety, we do not skip prefixes violating this rule.
+ */
+
+ static const FT_String*
+ tt_skip_pdffont_random_tag( const FT_String* name )
+ {
+ unsigned int i;
+
+
+ if ( ft_strlen( name ) < 8 || name[6] != '+' )
+ return name;
+
+ for ( i = 0; i < 6; i++ )
+ if ( !ft_isupper( name[i] ) )
+ return name;
+
+ FT_TRACE7(( "name without randomization tag: %s\n", name + 7 ));
+ return name + 7;
+ }
/* Compare the face with a list of well-known `tricky' fonts. */
@@ -151,7 +175,7 @@
{
#define TRICK_NAMES_MAX_CHARACTERS 19
-#define TRICK_NAMES_COUNT 26
+#define TRICK_NAMES_COUNT 20
static const char trick_names[TRICK_NAMES_COUNT]
[TRICK_NAMES_MAX_CHARACTERS + 1] =
@@ -171,22 +195,28 @@
"DFGirl-W6-WIN-BF", /* dftt-h6.ttf; version 1.00, 1993 */
"DFGothic-EB", /* DynaLab Inc. 1992-1995 */
"DFGyoSho-Lt", /* DynaLab Inc. 1992-1995 */
- "DFHei-Md-HK-BF", /* maybe DynaLab Inc. */
+ "DFHei", /* DynaLab Inc. 1992-1995 [DFHei-Bd-WIN-HK-BF] */
+ /* covers "DFHei-Md-HK-BF", maybe DynaLab Inc. */
+
"DFHSGothic-W5", /* DynaLab Inc. 1992-1995 */
"DFHSMincho-W3", /* DynaLab Inc. 1992-1995 */
"DFHSMincho-W7", /* DynaLab Inc. 1992-1995 */
"DFKaiSho-SB", /* dfkaisb.ttf */
- "DFKaiShu",
- "DFKaiShu-Md-HK-BF", /* maybe DynaLab Inc. */
+ "DFKaiShu", /* covers "DFKaiShu-Md-HK-BF", maybe DynaLab Inc. */
"DFKai-SB", /* kaiu.ttf; version 3.00, 1998 [DFKaiShu-SB-Estd-BF] */
- "DFMing-Bd-HK-BF", /* maybe DynaLab Inc. */
+
+ "DFMing", /* DynaLab Inc. 1992-1995 [DFMing-Md-WIN-HK-BF] */
+ /* covers "DFMing-Bd-HK-BF", maybe DynaLab Inc. */
+
"DLC", /* dftt-m7.ttf; version 1.00, 1993 [DLCMingBold] */
/* dftt-f5.ttf; version 1.00, 1993 [DLCFongSung] */
- "DLCHayMedium", /* dftt-b5.ttf; version 1.00, 1993 */
- "DLCHayBold", /* dftt-b7.ttf; version 1.00, 1993 */
- "DLCKaiMedium", /* dftt-k5.ttf; version 1.00, 1992 */
- "DLCLiShu", /* dftt-l5.ttf; version 1.00, 1992 */
- "DLCRoundBold", /* dftt-r7.ttf; version 1.00, 1993 */
+ /* covers following */
+ /* "DLCHayMedium", dftt-b5.ttf; version 1.00, 1993 */
+ /* "DLCHayBold", dftt-b7.ttf; version 1.00, 1993 */
+ /* "DLCKaiMedium", dftt-k5.ttf; version 1.00, 1992 */
+ /* "DLCLiShu", dftt-l5.ttf; version 1.00, 1992 */
+ /* "DLCRoundBold", dftt-r7.ttf; version 1.00, 1993 */
+
"HuaTianKaiTi?", /* htkt2.ttf */
"HuaTianSongTi?", /* htst3.ttf */
"Ming(for ISO10646)", /* hkscsiic.ttf; version 0.12, 2007 [Ming] */
@@ -199,10 +229,12 @@
};
int nn;
+ const FT_String* name_without_tag;
+ name_without_tag = tt_skip_pdffont_random_tag( name );
for ( nn = 0; nn < TRICK_NAMES_COUNT; nn++ )
- if ( ft_strstr( name, trick_names[nn] ) )
+ if ( ft_strstr( name_without_tag, trick_names[nn] ) )
return TRUE;
return FALSE;
@@ -277,7 +309,7 @@
tt_check_trickyness_sfnt_ids( TT_Face face )
{
#define TRICK_SFNT_IDS_PER_FACE 3
-#define TRICK_SFNT_IDS_NUM_FACES 29
+#define TRICK_SFNT_IDS_NUM_FACES 31
static const tt_sfnt_id_rec sfnt_id[TRICK_SFNT_IDS_NUM_FACES]
[TRICK_SFNT_IDS_PER_FACE] = {
@@ -430,6 +462,16 @@
{ 0x00170003UL, 0x00000060UL }, /* cvt */
{ 0xDBB4306EUL, 0x000058AAUL }, /* fpgm */
{ 0xD643482AUL, 0x00000035UL } /* prep */
+ },
+ { /* DFHei-Bd-WIN-HK-BF, issue #1087 */
+ { 0x1269EB58UL, 0x00000350UL }, /* cvt */
+ { 0x5CD5957AUL, 0x00006A4EUL }, /* fpgm */
+ { 0xF758323AUL, 0x00000380UL } /* prep */
+ },
+ { /* DFMing-Md-WIN-HK-BF, issue #1087 */
+ { 0x122FEB0BUL, 0x00000350UL }, /* cvt */
+ { 0x7F10919AUL, 0x000070A9UL }, /* fpgm */
+ { 0x7CD7E7B7UL, 0x0000025CUL } /* prep */
}
};
@@ -510,17 +552,27 @@
/* For first, check the face name for quick check. */
if ( face->family_name &&
tt_check_trickyness_family( face->family_name ) )
+ {
+ FT_TRACE3(( "found as a tricky font"
+ " by its family name: %s\n", face->family_name ));
return TRUE;
+ }
/* Type42 fonts may lack `name' tables, we thus try to identify */
/* tricky fonts by checking the checksums of Type42-persistent */
/* sfnt tables (`cvt', `fpgm', and `prep'). */
if ( tt_check_trickyness_sfnt_ids( (TT_Face)face ) )
+ {
+ FT_TRACE3(( "found as a tricky font"
+ " by its cvt/fpgm/prep table checksum\n" ));
return TRUE;
+ }
return FALSE;
}
+#endif /* TT_USE_BYTECODE_INTERPRETER */
+
/* Check whether `.notdef' is the only glyph in the `loca' table. */
static FT_Bool
@@ -666,8 +718,10 @@
if ( error )
goto Exit;
+#ifdef TT_USE_BYTECODE_INTERPRETER
if ( tt_check_trickyness( ttface ) )
ttface->face_flags |= FT_FACE_FLAG_TRICKY;
+#endif
error = tt_face_load_hdmx( face, stream );
if ( error )
@@ -712,8 +766,8 @@
tt_check_single_notdef( ttface ) )
{
FT_TRACE5(( "tt_face_init:"
- " Only the `.notdef' glyph has an outline.\n"
- " "
+ " Only the `.notdef' glyph has an outline.\n" ));
+ FT_TRACE5(( " "
" Resetting scalable flag to FALSE.\n" ));
ttface->face_flags &= ~FT_FACE_FLAG_SCALABLE;
@@ -1190,11 +1244,11 @@
/* rescale CVT when needed */
if ( size->cvt_ready < 0 )
{
- FT_UInt i;
+ FT_UShort i;
/* all twilight points are originally zero */
- for ( i = 0; i < (FT_UInt)size->twilight.n_points; i++ )
+ for ( i = 0; i < size->twilight.n_points; i++ )
{
size->twilight.org[i].x = 0;
size->twilight.org[i].y = 0;
@@ -1203,7 +1257,7 @@
}
/* clear storage area */
- for ( i = 0; i < (FT_UInt)size->storage_size; i++ )
+ for ( i = 0; i < size->storage_size; i++ )
size->storage[i] = 0;
size->GS = tt_default_graphics_state;
diff --git a/thirdparty/freetype/src/truetype/ttobjs.h b/thirdparty/freetype/src/truetype/ttobjs.h
index d986deabc4..fd72378721 100644
--- a/thirdparty/freetype/src/truetype/ttobjs.h
+++ b/thirdparty/freetype/src/truetype/ttobjs.h
@@ -4,7 +4,7 @@
*
* Objects manager (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/ttpload.c b/thirdparty/freetype/src/truetype/ttpload.c
index b1255b88cd..71db75ae1f 100644
--- a/thirdparty/freetype/src/truetype/ttpload.c
+++ b/thirdparty/freetype/src/truetype/ttpload.c
@@ -4,7 +4,7 @@
*
* TrueType-specific tables loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -98,36 +98,23 @@
goto Exit;
}
- if ( face->header.Index_To_Loc_Format != 0 )
- {
- shift = 2;
+ shift = face->header.Index_To_Loc_Format != 0 ? 2 : 1;
- if ( table_len >= 0x40000L )
- {
- FT_TRACE2(( "table too large\n" ));
- table_len = 0x3FFFFL;
- }
- face->num_locations = table_len >> shift;
- }
- else
+ if ( table_len > 0x10000UL << shift )
{
- shift = 1;
-
- if ( table_len >= 0x20000L )
- {
- FT_TRACE2(( "table too large\n" ));
- table_len = 0x1FFFFL;
- }
- face->num_locations = table_len >> shift;
+ FT_TRACE2(( "table too large\n" ));
+ table_len = 0x10000UL << shift;
}
+ face->num_locations = table_len >> shift;
+
if ( face->num_locations != (FT_ULong)face->root.num_glyphs + 1 )
{
FT_TRACE2(( "glyph count mismatch! loca: %ld, maxp: %ld\n",
face->num_locations - 1, face->root.num_glyphs ));
/* we only handle the case where `maxp' gives a larger value */
- if ( face->num_locations <= (FT_ULong)face->root.num_glyphs )
+ if ( face->num_locations < (FT_ULong)face->root.num_glyphs + 1 )
{
FT_ULong new_loca_len =
( (FT_ULong)face->root.num_glyphs + 1 ) << shift;
@@ -237,10 +224,11 @@
if ( pos1 > face->glyf_len )
{
FT_TRACE1(( "tt_face_get_location:"
- " too large offset (0x%08lx) found for glyph index %d,\n"
- " "
+ " too large offset (0x%08lx) found for glyph index %d,\n",
+ pos1, gindex ));
+ FT_TRACE1(( " "
" exceeding the end of `glyf' table (0x%08lx)\n",
- pos1, gindex, face->glyf_len ));
+ face->glyf_len ));
*asize = 0;
return 0;
}
@@ -251,19 +239,21 @@
if ( gindex == face->num_locations - 2 )
{
FT_TRACE1(( "tt_face_get_location:"
- " too large size (%ld bytes) found for glyph index %d,\n"
- " "
+ " too large size (%ld bytes) found for glyph index %d,\n",
+ pos2 - pos1, gindex ));
+ FT_TRACE1(( " "
" truncating at the end of `glyf' table to %ld bytes\n",
- pos2 - pos1, gindex, face->glyf_len - pos1 ));
+ face->glyf_len - pos1 ));
pos2 = face->glyf_len;
}
else
{
FT_TRACE1(( "tt_face_get_location:"
- " too large offset (0x%08lx) found for glyph index %d,\n"
- " "
+ " too large offset (0x%08lx) found for glyph index %d,\n",
+ pos2, gindex + 1 ));
+ FT_TRACE1(( " "
" exceeding the end of `glyf' table (0x%08lx)\n",
- pos2, gindex + 1, face->glyf_len ));
+ face->glyf_len ));
*asize = 0;
return 0;
}
@@ -344,7 +334,7 @@
face->cvt_size = table_len / 2;
- if ( FT_NEW_ARRAY( face->cvt, face->cvt_size ) )
+ if ( FT_QNEW_ARRAY( face->cvt, face->cvt_size ) )
goto Exit;
if ( FT_FRAME_ENTER( face->cvt_size * 2L ) )
@@ -557,12 +547,6 @@
num_records = FT_NEXT_USHORT( p );
record_size = FT_NEXT_ULONG( p );
- /* The maximum number of bytes in an hdmx device record is the */
- /* maximum number of glyphs + 2; this is 0xFFFF + 2, thus */
- /* explaining why `record_size' is a long (which we read as */
- /* unsigned long for convenience). In practice, two bytes are */
- /* sufficient to hold the size value. */
- /* */
/* There are at least two fonts, HANNOM-A and HANNOM-B version */
/* 2.0 (2005), which get this wrong: The upper two bytes of */
/* the size value are set to 0xFF instead of 0x00. We catch */
@@ -571,19 +555,30 @@
if ( record_size >= 0xFFFF0000UL )
record_size &= 0xFFFFU;
+ FT_TRACE2(( "Hdmx " ));
+
/* The limit for `num_records' is a heuristic value. */
- if ( num_records > 255 ||
- ( num_records > 0 &&
- ( record_size > 0x10001L ||
- record_size < 4 ) ) )
+ if ( num_records > 255 || num_records == 0 )
{
- error = FT_THROW( Invalid_File_Format );
+ FT_TRACE2(( "with unreasonable %u records rejected\n", num_records ));
goto Fail;
}
- if ( FT_NEW_ARRAY( face->hdmx_record_sizes, num_records ) )
+ /* Out-of-spec tables are rejected. The record size must be */
+ /* equal to the number of glyphs + 2 + 32-bit padding. */
+ if ( (FT_Long)record_size != ( ( face->root.num_glyphs + 2 + 3 ) & ~3 ) )
+ {
+ FT_TRACE2(( "with record size off by %ld bytes rejected\n",
+ (FT_Long)record_size -
+ ( ( face->root.num_glyphs + 2 + 3 ) & ~3 ) ));
goto Fail;
+ }
+ if ( FT_QNEW_ARRAY( face->hdmx_record_sizes, num_records ) )
+ goto Fail;
+
+ /* XXX: We do not check if the records are sorted by ppem */
+ /* and cannot use binary search later. */
for ( nn = 0; nn < num_records; nn++ )
{
if ( p + record_size > limit )
@@ -597,6 +592,8 @@
face->hdmx_table_size = table_size;
face->hdmx_record_size = record_size;
+ FT_TRACE2(( "%ux%lu loaded\n", num_records, record_size ));
+
Exit:
return error;
diff --git a/thirdparty/freetype/src/truetype/ttpload.h b/thirdparty/freetype/src/truetype/ttpload.h
index bb669e0278..84c42cdaf4 100644
--- a/thirdparty/freetype/src/truetype/ttpload.h
+++ b/thirdparty/freetype/src/truetype/ttpload.h
@@ -4,7 +4,7 @@
*
* TrueType-specific tables loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/truetype/ttsubpix.c b/thirdparty/freetype/src/truetype/ttsubpix.c
index 56667deaf7..c484665b95 100644
--- a/thirdparty/freetype/src/truetype/ttsubpix.c
+++ b/thirdparty/freetype/src/truetype/ttsubpix.c
@@ -4,7 +4,7 @@
*
* TrueType Subpixel Hinting.
*
- * Copyright (C) 2010-2020 by
+ * Copyright (C) 2010-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -315,7 +315,7 @@
static const SPH_TweakRule SKIP_NONPIXEL_Y_MOVES_Rules
[SKIP_NONPIXEL_Y_MOVES_RULES_SIZE] =
{
- /* fix vwxyz thinness*/
+ /* fix vwxyz thinness */
{ "Consolas", 0, "", 0 },
/* Fix thin middle stems */
{ "Core MS Legacy Fonts", 0, "Regular", 0 },
@@ -891,12 +891,12 @@
#define TWEAK_RULES( x ) \
if ( sph_test_tweak( face, family, ppem, style, glyph_index, \
x##_Rules, x##_RULES_SIZE ) ) \
- loader->exec->sph_tweak_flags |= SPH_TWEAK_##x;
+ loader->exec->sph_tweak_flags |= SPH_TWEAK_##x
#define TWEAK_RULES_EXCEPTIONS( x ) \
if ( sph_test_tweak( face, family, ppem, style, glyph_index, \
x##_Rules_Exceptions, x##_RULES_EXCEPTIONS_SIZE ) ) \
- loader->exec->sph_tweak_flags &= ~SPH_TWEAK_##x;
+ loader->exec->sph_tweak_flags &= ~SPH_TWEAK_##x
FT_LOCAL_DEF( void )
diff --git a/thirdparty/freetype/src/truetype/ttsubpix.h b/thirdparty/freetype/src/truetype/ttsubpix.h
index 229a6cf055..762b7c98a3 100644
--- a/thirdparty/freetype/src/truetype/ttsubpix.h
+++ b/thirdparty/freetype/src/truetype/ttsubpix.h
@@ -4,7 +4,7 @@
*
* TrueType Subpixel Hinting.
*
- * Copyright (C) 2010-2020 by
+ * Copyright (C) 2010-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/module.mk b/thirdparty/freetype/src/type1/module.mk
deleted file mode 100644
index cffb774b45..0000000000
--- a/thirdparty/freetype/src/type1/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 Type1 module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += TYPE1_DRIVER
-
-define TYPE1_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, t1_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)type1 $(ECHO_DRIVER_DESC)Postscript font files with extension *.pfa or *.pfb$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/type1/rules.mk b/thirdparty/freetype/src/type1/rules.mk
deleted file mode 100644
index 213e619247..0000000000
--- a/thirdparty/freetype/src/type1/rules.mk
+++ /dev/null
@@ -1,76 +0,0 @@
-#
-# FreeType 2 Type1 driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# Type1 driver directory
-#
-T1_DIR := $(SRC_DIR)/type1
-
-
-# compilation flags for the driver
-#
-T1_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(T1_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# Type1 driver sources (i.e., C files)
-#
-T1_DRV_SRC := $(T1_DIR)/t1parse.c \
- $(T1_DIR)/t1load.c \
- $(T1_DIR)/t1driver.c \
- $(T1_DIR)/t1afm.c \
- $(T1_DIR)/t1gload.c \
- $(T1_DIR)/t1objs.c
-
-# Type1 driver headers
-#
-T1_DRV_H := $(T1_DRV_SRC:%.c=%.h) \
- $(T1_DIR)/t1tokens.h \
- $(T1_DIR)/t1errors.h
-
-
-# Type1 driver object(s)
-#
-# T1_DRV_OBJ_M is used during `multi' builds
-# T1_DRV_OBJ_S is used during `single' builds
-#
-T1_DRV_OBJ_M := $(T1_DRV_SRC:$(T1_DIR)/%.c=$(OBJ_DIR)/%.$O)
-T1_DRV_OBJ_S := $(OBJ_DIR)/type1.$O
-
-# Type1 driver source file for single build
-#
-T1_DRV_SRC_S := $(T1_DIR)/type1.c
-
-
-# Type1 driver - single object
-#
-$(T1_DRV_OBJ_S): $(T1_DRV_SRC_S) $(T1_DRV_SRC) $(FREETYPE_H) $(T1_DRV_H)
- $(T1_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(T1_DRV_SRC_S))
-
-
-# Type1 driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(T1_DIR)/%.c $(FREETYPE_H) $(T1_DRV_H)
- $(T1_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(T1_DRV_OBJ_S)
-DRV_OBJS_M += $(T1_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/type1/t1afm.c b/thirdparty/freetype/src/type1/t1afm.c
index b9cd66b045..4c18ed1955 100644
--- a/thirdparty/freetype/src/type1/t1afm.c
+++ b/thirdparty/freetype/src/type1/t1afm.c
@@ -4,7 +4,7 @@
*
* AFM support for Type 1 fonts (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -83,7 +83,7 @@
/* compare two kerning pairs */
- FT_CALLBACK_DEF( int )
+ FT_COMPARE_DEF( int )
compare_kern_pairs( const void* a,
const void* b )
{
diff --git a/thirdparty/freetype/src/type1/t1afm.h b/thirdparty/freetype/src/type1/t1afm.h
index edf919c791..86fe45ea3e 100644
--- a/thirdparty/freetype/src/type1/t1afm.h
+++ b/thirdparty/freetype/src/type1/t1afm.h
@@ -4,7 +4,7 @@
*
* AFM support for Type 1 fonts (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1driver.c b/thirdparty/freetype/src/type1/t1driver.c
index b786a87817..f4d7a089ae 100644
--- a/thirdparty/freetype/src/type1/t1driver.c
+++ b/thirdparty/freetype/src/type1/t1driver.c
@@ -4,7 +4,7 @@
*
* Type 1 driver interface (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1driver.h b/thirdparty/freetype/src/type1/t1driver.h
index e7eae0b88c..20a827f898 100644
--- a/thirdparty/freetype/src/type1/t1driver.h
+++ b/thirdparty/freetype/src/type1/t1driver.h
@@ -4,7 +4,7 @@
*
* High-level Type 1 driver interface (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1errors.h b/thirdparty/freetype/src/type1/t1errors.h
index ad03a3d32a..18ef75452b 100644
--- a/thirdparty/freetype/src/type1/t1errors.h
+++ b/thirdparty/freetype/src/type1/t1errors.h
@@ -4,7 +4,7 @@
*
* Type 1 error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1gload.c b/thirdparty/freetype/src/type1/t1gload.c
index d16b81f246..86649edf3a 100644
--- a/thirdparty/freetype/src/type1/t1gload.c
+++ b/thirdparty/freetype/src/type1/t1gload.c
@@ -4,7 +4,7 @@
*
* Type 1 Glyph Loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -79,7 +79,7 @@
/* For ordinary fonts get the character data stored in the face record. */
{
char_string->pointer = type1->charstrings[glyph_index];
- char_string->length = (FT_Int)type1->charstrings_len[glyph_index];
+ char_string->length = type1->charstrings_len[glyph_index];
}
if ( !error )
diff --git a/thirdparty/freetype/src/type1/t1gload.h b/thirdparty/freetype/src/type1/t1gload.h
index 9947507c84..a924d551a9 100644
--- a/thirdparty/freetype/src/type1/t1gload.h
+++ b/thirdparty/freetype/src/type1/t1gload.h
@@ -4,7 +4,7 @@
*
* Type 1 Glyph Loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1load.c b/thirdparty/freetype/src/type1/t1load.c
index 84986007b0..bb62c79902 100644
--- a/thirdparty/freetype/src/type1/t1load.c
+++ b/thirdparty/freetype/src/type1/t1load.c
@@ -4,7 +4,7 @@
*
* Type 1 font loader (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -117,6 +117,9 @@
goto Exit;
blend->num_default_design_vector = 0;
+ blend->weight_vector = NULL;
+ blend->default_weight_vector = NULL;
+ blend->design_pos[0] = NULL;
face->blend = blend;
}
@@ -130,14 +133,11 @@
/* allocate the blend `private' and `font_info' dictionaries */
- if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) ||
- FT_NEW_ARRAY( blend->privates [1], num_designs ) ||
- FT_NEW_ARRAY( blend->bboxes [1], num_designs ) ||
- FT_NEW_ARRAY( blend->weight_vector, num_designs * 2 ) )
+ if ( FT_NEW_ARRAY( blend->font_infos[1], num_designs ) ||
+ FT_NEW_ARRAY( blend->privates [1], num_designs ) ||
+ FT_NEW_ARRAY( blend->bboxes [1], num_designs ) )
goto Exit;
- blend->default_weight_vector = blend->weight_vector + num_designs;
-
blend->font_infos[0] = &face->type1.font_info;
blend->privates [0] = &face->type1.private_dict;
blend->bboxes [0] = &face->type1.font_bbox;
@@ -164,21 +164,6 @@
blend->num_axis = num_axis;
}
- /* allocate the blend design pos table if needed */
- num_designs = blend->num_designs;
- num_axis = blend->num_axis;
- if ( num_designs && num_axis && blend->design_pos[0] == 0 )
- {
- FT_UInt n;
-
-
- if ( FT_NEW_ARRAY( blend->design_pos[0], num_designs * num_axis ) )
- goto Exit;
-
- for ( n = 1; n < num_designs; n++ )
- blend->design_pos[n] = blend->design_pos[0] + num_axis * n;
- }
-
Exit:
return error;
@@ -580,7 +565,7 @@
{
FT_Error error;
PS_Blend blend = face->blend;
- FT_UInt n, p;
+ FT_UInt n;
FT_Fixed final_blends[T1_MAX_MM_DESIGNS];
@@ -599,7 +584,7 @@
PS_DesignMap map = blend->design_map + n;
FT_Long* designs = map->design_points;
FT_Fixed* blends = map->blend_points;
- FT_Int before = -1, after = -1;
+ FT_Int p, before = -1, after = -1;
/* use a default value if we don't have a coordinate */
@@ -608,7 +593,7 @@
else
design = ( designs[map->num_points - 1] - designs[0] ) / 2;
- for ( p = 0; p < (FT_UInt)map->num_points; p++ )
+ for ( p = 0; p < (FT_Int)map->num_points; p++ )
{
FT_Long p_design = designs[p];
@@ -622,11 +607,11 @@
if ( design < p_design )
{
- after = (FT_Int)p;
+ after = p;
break;
}
- before = (FT_Int)p;
+ before = p;
}
/* now interpolate if necessary */
@@ -851,7 +836,7 @@
FT_FREE( name );
}
- if ( FT_ALLOC( blend->axis_names[n], len + 1 ) )
+ if ( FT_QALLOC( blend->axis_names[n], len + 1 ) )
goto Exit;
name = (FT_Byte*)blend->axis_names[n];
@@ -872,12 +857,14 @@
{
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
FT_Int num_designs;
- FT_Int num_axis;
- T1_Parser parser = &loader->parser;
+ FT_Int num_axis = 0; /* make compiler happy */
+ T1_Parser parser = &loader->parser;
+ FT_Memory memory = face->root.memory;
+ FT_Error error = FT_Err_Ok;
+ FT_Fixed* design_pos[T1_MAX_MM_DESIGNS];
- FT_Error error = FT_Err_Ok;
- PS_Blend blend;
+ design_pos[0] = NULL;
/* get the array of design tokens -- compute number of designs */
T1_ToTokenArray( parser, design_tokens,
@@ -899,12 +886,10 @@
{
FT_Byte* old_cursor = parser->root.cursor;
FT_Byte* old_limit = parser->root.limit;
- FT_Int n;
+ FT_Int n, nn;
+ PS_Blend blend;
- blend = face->blend;
- num_axis = 0; /* make compiler happy */
-
FT_TRACE4(( " [" ));
for ( n = 0; n < num_designs; n++ )
@@ -937,7 +922,13 @@
(FT_UInt)num_axis );
if ( error )
goto Exit;
- blend = face->blend;
+
+ /* allocate a blend design pos table */
+ if ( FT_QNEW_ARRAY( design_pos[0], num_designs * num_axis ) )
+ goto Exit;
+
+ for ( nn = 1; nn < num_designs; nn++ )
+ design_pos[nn] = design_pos[0] + num_axis * nn;
}
else if ( n_axis != num_axis )
{
@@ -955,8 +946,8 @@
parser->root.cursor = token2->start;
parser->root.limit = token2->limit;
- blend->design_pos[n][axis] = T1_ToFixed( parser, 0 );
- FT_TRACE4(( " %f", (double)blend->design_pos[n][axis] / 65536 ));
+ design_pos[n][axis] = T1_ToFixed( parser, 0 );
+ FT_TRACE4(( " %f", (double)design_pos[n][axis] / 65536 ));
}
FT_TRACE4(( "]" )) ;
}
@@ -965,9 +956,21 @@
loader->parser.root.cursor = old_cursor;
loader->parser.root.limit = old_limit;
+
+ /* a valid BlendDesignPosition has been parsed */
+ blend = face->blend;
+ if ( blend->design_pos[0] )
+ FT_FREE( blend->design_pos[0] );
+
+ for ( n = 0; n < num_designs; n++ )
+ {
+ blend->design_pos[n] = design_pos[n];
+ design_pos[n] = NULL;
+ }
}
Exit:
+ FT_FREE( design_pos[0] );
loader->parser.root.error = error;
}
@@ -1044,7 +1047,7 @@
}
/* allocate design map data */
- if ( FT_NEW_ARRAY( map->design_points, num_points * 2 ) )
+ if ( FT_QNEW_ARRAY( map->design_points, num_points * 2 ) )
goto Exit;
map->blend_points = map->design_points + num_points;
map->num_points = (FT_Byte)num_points;
@@ -1088,6 +1091,7 @@
T1_TokenRec design_tokens[T1_MAX_MM_DESIGNS];
FT_Int num_designs;
FT_Error error = FT_Err_Ok;
+ FT_Memory memory = face->root.memory;
T1_Parser parser = &loader->parser;
PS_Blend blend = face->blend;
T1_Token token;
@@ -1122,13 +1126,19 @@
else if ( blend->num_designs != (FT_UInt)num_designs )
{
FT_ERROR(( "parse_weight_vector:"
- " /BlendDesignPosition and /WeightVector have\n"
- " "
+ " /BlendDesignPosition and /WeightVector have\n" ));
+ FT_ERROR(( " "
" different number of elements\n" ));
error = FT_THROW( Invalid_File_Format );
goto Exit;
}
+ if ( !blend->weight_vector )
+ if ( FT_QNEW_ARRAY( blend->weight_vector, num_designs * 2 ) )
+ goto Exit;
+
+ blend->default_weight_vector = blend->weight_vector + num_designs;
+
old_cursor = parser->root.cursor;
old_limit = parser->root.limit;
@@ -1307,9 +1317,9 @@
else
{
FT_TRACE1(( "t1_load_keyword: ignoring keyword `%s'"
- " which is not valid at this point\n"
- " (probably due to missing keywords)\n",
+ " which is not valid at this point\n",
field->ident ));
+ FT_TRACE1(( " (probably due to missing keywords)\n" ));
error = FT_Err_Ok;
}
@@ -1858,7 +1868,7 @@
}
/* t1_decrypt() shouldn't write to base -- make temporary copy */
- if ( FT_ALLOC( temp, size ) )
+ if ( FT_QALLOC( temp, size ) )
goto Fail;
FT_MEM_COPY( temp, base, size );
psaux->t1_decrypt( temp, size, 4330 );
@@ -2068,7 +2078,7 @@
}
/* t1_decrypt() shouldn't write to base -- make temporary copy */
- if ( FT_ALLOC( temp, size ) )
+ if ( FT_QALLOC( temp, size ) )
goto Fail;
FT_MEM_COPY( temp, base, size );
psaux->t1_decrypt( temp, size, 4330 );
@@ -2578,7 +2588,15 @@
( !face->blend->num_designs || !face->blend->num_axis ) )
T1_Done_Blend( face );
- /* another safety check */
+ /* the font may have no valid WeightVector */
+ if ( face->blend && !face->blend->weight_vector )
+ T1_Done_Blend( face );
+
+ /* the font may have no valid BlendDesignPositions */
+ if ( face->blend && !face->blend->design_pos[0] )
+ T1_Done_Blend( face );
+
+ /* the font may have no valid BlendDesignMap */
if ( face->blend )
{
FT_UInt i;
diff --git a/thirdparty/freetype/src/type1/t1load.h b/thirdparty/freetype/src/type1/t1load.h
index 4396415c20..ba19adb147 100644
--- a/thirdparty/freetype/src/type1/t1load.h
+++ b/thirdparty/freetype/src/type1/t1load.h
@@ -4,7 +4,7 @@
*
* Type 1 font loader (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1objs.c b/thirdparty/freetype/src/type1/t1objs.c
index 3b918b7338..50dad038fd 100644
--- a/thirdparty/freetype/src/type1/t1objs.c
+++ b/thirdparty/freetype/src/type1/t1objs.c
@@ -4,7 +4,7 @@
*
* Type 1 objects manager (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -116,11 +116,15 @@
T1_Size_Request( FT_Size t1size, /* T1_Size */
FT_Size_Request req )
{
+ FT_Error error;
+
T1_Size size = (T1_Size)t1size;
PSH_Globals_Funcs funcs = T1_Size_Get_Globals_Funcs( size );
- FT_Request_Metrics( size->root.face, req );
+ error = FT_Request_Metrics( size->root.face, req );
+ if ( error )
+ goto Exit;
if ( funcs )
funcs->set_scale( (PSH_Globals)t1size->internal->module_data,
@@ -128,7 +132,8 @@
size->root.metrics.y_scale,
0, 0 );
- return FT_Err_Ok;
+ Exit:
+ return error;
}
@@ -217,7 +222,6 @@
{
FT_FREE( face->buildchar );
- face->buildchar = NULL;
face->len_buildchar = 0;
}
@@ -598,11 +602,7 @@
/* set default property values, cf. `ftt1drv.h' */
-#ifdef T1_CONFIG_OPTION_OLD_ENGINE
- driver->hinting_engine = FT_HINTING_FREETYPE;
-#else
driver->hinting_engine = FT_HINTING_ADOBE;
-#endif
driver->no_stem_darkening = TRUE;
diff --git a/thirdparty/freetype/src/type1/t1objs.h b/thirdparty/freetype/src/type1/t1objs.h
index 536be8ba1e..5f103b5066 100644
--- a/thirdparty/freetype/src/type1/t1objs.h
+++ b/thirdparty/freetype/src/type1/t1objs.h
@@ -4,7 +4,7 @@
*
* Type 1 objects manager (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1parse.c b/thirdparty/freetype/src/type1/t1parse.c
index 74cf38bde7..9f226296a9 100644
--- a/thirdparty/freetype/src/type1/t1parse.c
+++ b/thirdparty/freetype/src/type1/t1parse.c
@@ -4,7 +4,7 @@
*
* Type 1 parser (body).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
@@ -221,7 +221,7 @@
else
{
/* read segment in memory -- this is clumsy, but so does the format */
- if ( FT_ALLOC( parser->base_dict, size ) ||
+ if ( FT_QALLOC( parser->base_dict, size ) ||
FT_STREAM_READ( parser->base_dict, size ) )
goto Exit;
parser->base_len = size;
@@ -302,8 +302,8 @@
goto Fail;
}
- if ( FT_STREAM_SEEK( start_pos ) ||
- FT_ALLOC( parser->private_dict, parser->private_len ) )
+ if ( FT_STREAM_SEEK( start_pos ) ||
+ FT_QALLOC( parser->private_dict, parser->private_len ) )
goto Fail;
parser->private_len = 0;
@@ -450,7 +450,7 @@
if ( parser->in_memory )
{
/* note that we allocate one more byte to put a terminating `0' */
- if ( FT_ALLOC( parser->private_dict, size + 1 ) )
+ if ( FT_QALLOC( parser->private_dict, size + 1 ) )
goto Fail;
parser->private_len = size;
}
diff --git a/thirdparty/freetype/src/type1/t1parse.h b/thirdparty/freetype/src/type1/t1parse.h
index 1ea0110b50..247ff73b2c 100644
--- a/thirdparty/freetype/src/type1/t1parse.h
+++ b/thirdparty/freetype/src/type1/t1parse.h
@@ -4,7 +4,7 @@
*
* Type 1 parser (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/t1tokens.h b/thirdparty/freetype/src/type1/t1tokens.h
index c09420355d..13ac8ac1c7 100644
--- a/thirdparty/freetype/src/type1/t1tokens.h
+++ b/thirdparty/freetype/src/type1/t1tokens.h
@@ -4,7 +4,7 @@
*
* Type 1 tokenizer (specification).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type1/type1.c b/thirdparty/freetype/src/type1/type1.c
index cadee78994..003b78cb86 100644
--- a/thirdparty/freetype/src/type1/type1.c
+++ b/thirdparty/freetype/src/type1/type1.c
@@ -4,7 +4,7 @@
*
* FreeType Type 1 driver component (body only).
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/module.mk b/thirdparty/freetype/src/type42/module.mk
deleted file mode 100644
index 6ef3a95ead..0000000000
--- a/thirdparty/freetype/src/type42/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 Type42 module definition
-#
-
-
-# Copyright (C) 2002-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += TYPE42_DRIVER
-
-define TYPE42_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, t42_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)type42 $(ECHO_DRIVER_DESC)Type 42 font files with no known extension$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/type42/rules.mk b/thirdparty/freetype/src/type42/rules.mk
deleted file mode 100644
index f4ce91a3b7..0000000000
--- a/thirdparty/freetype/src/type42/rules.mk
+++ /dev/null
@@ -1,73 +0,0 @@
-#
-# FreeType 2 Type42 driver configuration rules
-#
-
-
-# Copyright (C) 2002-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# Type42 driver directory
-#
-T42_DIR := $(SRC_DIR)/type42
-
-
-# compilation flags for the driver
-#
-T42_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(T42_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# Type42 driver source
-#
-T42_DRV_SRC := $(T42_DIR)/t42objs.c \
- $(T42_DIR)/t42parse.c \
- $(T42_DIR)/t42drivr.c
-
-# Type42 driver headers
-#
-T42_DRV_H := $(T42_DRV_SRC:%.c=%.h) \
- $(T42_DIR)/t42error.h \
- $(T42_DIR)/t42types.h
-
-
-# Type42 driver object(s)
-#
-# T42_DRV_OBJ_M is used during `multi' builds
-# T42_DRV_OBJ_S is used during `single' builds
-#
-T42_DRV_OBJ_M := $(T42_DRV_SRC:$(T42_DIR)/%.c=$(OBJ_DIR)/%.$O)
-T42_DRV_OBJ_S := $(OBJ_DIR)/type42.$O
-
-# Type42 driver source file for single build
-#
-T42_DRV_SRC_S := $(T42_DIR)/type42.c
-
-
-# Type42 driver - single object
-#
-$(T42_DRV_OBJ_S): $(T42_DRV_SRC_S) $(T42_DRV_SRC) $(FREETYPE_H) $(T42_DRV_H)
- $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(T42_DRV_SRC_S))
-
-
-# Type42 driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(T42_DIR)/%.c $(FREETYPE_H) $(T42_DRV_H)
- $(T42_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(T42_DRV_OBJ_S)
-DRV_OBJS_M += $(T42_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/type42/t42drivr.c b/thirdparty/freetype/src/type42/t42drivr.c
index 90898b4329..e74ba1deba 100644
--- a/thirdparty/freetype/src/type42/t42drivr.c
+++ b/thirdparty/freetype/src/type42/t42drivr.c
@@ -4,7 +4,7 @@
*
* High-level Type 42 driver interface (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/t42drivr.h b/thirdparty/freetype/src/type42/t42drivr.h
index 8bf2afc755..c6d8a4409e 100644
--- a/thirdparty/freetype/src/type42/t42drivr.h
+++ b/thirdparty/freetype/src/type42/t42drivr.h
@@ -4,7 +4,7 @@
*
* High-level Type 42 driver interface (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/t42error.h b/thirdparty/freetype/src/type42/t42error.h
index e48132ec09..470f5189a8 100644
--- a/thirdparty/freetype/src/type42/t42error.h
+++ b/thirdparty/freetype/src/type42/t42error.h
@@ -4,7 +4,7 @@
*
* Type 42 error codes (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/t42objs.c b/thirdparty/freetype/src/type42/t42objs.c
index 6acfcdf401..03955e945b 100644
--- a/thirdparty/freetype/src/type42/t42objs.c
+++ b/thirdparty/freetype/src/type42/t42objs.c
@@ -4,7 +4,7 @@
*
* Type 42 objects manager (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
@@ -44,7 +44,7 @@
parser = &loader.parser;
- if ( FT_ALLOC( face->ttf_data, 12 ) )
+ if ( FT_QALLOC( face->ttf_data, 12 ) )
goto Exit;
/* while parsing the font we always update `face->ttf_size' so that */
@@ -510,7 +510,8 @@
error = FT_New_Size( t42face->ttf_face, &ttsize );
- t42size->ttsize = ttsize;
+ if ( !error )
+ t42size->ttsize = ttsize;
FT_Activate_Size( ttsize );
@@ -582,6 +583,7 @@
FT_Face face = t42slot->face;
T42_Face t42face = (T42_Face)face;
FT_GlyphSlot ttslot;
+ FT_Memory memory = face->memory;
FT_Error error = FT_Err_Ok;
@@ -593,9 +595,15 @@
else
{
error = FT_New_GlyphSlot( t42face->ttf_face, &ttslot );
- slot->ttslot = ttslot;
+ if ( !error )
+ slot->ttslot = ttslot;
}
+ /* share the loader so that the autohinter can see it */
+ FT_GlyphLoader_Done( slot->ttslot->internal->loader );
+ FT_FREE( slot->ttslot->internal );
+ slot->ttslot->internal = t42slot->internal;
+
return error;
}
@@ -606,6 +614,8 @@
T42_GlyphSlot slot = (T42_GlyphSlot)t42slot;
+ /* do not destroy the inherited internal structure just yet */
+ slot->ttslot->internal = NULL;
FT_Done_GlyphSlot( slot->ttslot );
}
diff --git a/thirdparty/freetype/src/type42/t42objs.h b/thirdparty/freetype/src/type42/t42objs.h
index 69f5cffd44..cbd344ffbd 100644
--- a/thirdparty/freetype/src/type42/t42objs.h
+++ b/thirdparty/freetype/src/type42/t42objs.h
@@ -4,7 +4,7 @@
*
* Type 42 objects manager (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/t42parse.c b/thirdparty/freetype/src/type42/t42parse.c
index 98507699fa..ea2c5198a9 100644
--- a/thirdparty/freetype/src/type42/t42parse.c
+++ b/thirdparty/freetype/src/type42/t42parse.c
@@ -4,7 +4,7 @@
*
* Type 42 font parser (body).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
@@ -197,7 +197,7 @@
else
{
/* read segment in memory */
- if ( FT_ALLOC( parser->base_dict, size ) ||
+ if ( FT_QALLOC( parser->base_dict, size ) ||
FT_STREAM_READ( parser->base_dict, size ) )
goto Exit;
@@ -576,6 +576,9 @@
old_string_size = 0;
count = 0;
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( "t42_parse_sfnts:\n" ));
+
while ( parser->root.cursor < limit )
{
FT_ULong size;
@@ -611,7 +614,7 @@
error = FT_THROW( Invalid_File_Format );
goto Fail;
}
- if ( FT_REALLOC( string_buf, old_string_size, string_size ) )
+ if ( FT_QREALLOC( string_buf, old_string_size, string_size ) )
goto Fail;
allocated = 1;
@@ -680,6 +683,9 @@
goto Fail;
}
+ FT_TRACE2(( " PS string size %5lu bytes, offset 0x%08lx (%lu)\n",
+ string_size, count, count ));
+
/* The whole TTF is now loaded into `string_buf'. We are */
/* checking its contents while copying it to `ttf_data'. */
@@ -702,6 +708,9 @@
status = BEFORE_TABLE_DIR;
face->ttf_size = 12 + 16 * num_tables;
+ FT_TRACE2(( " SFNT directory contains %d tables\n",
+ num_tables ));
+
if ( (FT_Long)size < face->ttf_size )
{
FT_ERROR(( "t42_parse_sfnts: invalid data in sfnts array\n" ));
@@ -709,7 +718,7 @@
goto Fail;
}
- if ( FT_REALLOC( face->ttf_data, 12, face->ttf_size ) )
+ if ( FT_QREALLOC( face->ttf_data, 12, face->ttf_size ) )
goto Fail;
}
/* fall through */
@@ -727,12 +736,18 @@
FT_ULong len;
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " table length\n" ));
+ FT_TRACE2(( " ------------------------------\n" ));
+
for ( i = 0; i < num_tables; i++ )
{
FT_Byte* p = face->ttf_data + 12 + 16 * i + 12;
len = FT_PEEK_ULONG( p );
+ FT_TRACE2(( " %4i 0x%08lx (%lu)\n", i, len, len ));
+
if ( len > size ||
face->ttf_size > (FT_Long)( size - len ) )
{
@@ -748,8 +763,12 @@
status = OTHER_TABLES;
- if ( FT_REALLOC( face->ttf_data, 12 + 16 * num_tables,
- face->ttf_size + 1 ) )
+ FT_TRACE2(( "\n" ));
+ FT_TRACE2(( " allocating %ld bytes\n", face->ttf_size + 1 ));
+ FT_TRACE2(( "\n" ));
+
+ if ( FT_QREALLOC( face->ttf_data, 12 + 16 * num_tables,
+ face->ttf_size + 1 ) )
goto Fail;
}
/* fall through */
diff --git a/thirdparty/freetype/src/type42/t42parse.h b/thirdparty/freetype/src/type42/t42parse.h
index 2ccf052d78..0fbd2b5e0b 100644
--- a/thirdparty/freetype/src/type42/t42parse.h
+++ b/thirdparty/freetype/src/type42/t42parse.h
@@ -4,7 +4,7 @@
*
* Type 42 font parser (specification).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/t42types.h b/thirdparty/freetype/src/type42/t42types.h
index ba0cc21429..ea2f03e893 100644
--- a/thirdparty/freetype/src/type42/t42types.h
+++ b/thirdparty/freetype/src/type42/t42types.h
@@ -4,7 +4,7 @@
*
* Type 42 font data types (specification only).
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* Roberto Alameda.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/type42/type42.c b/thirdparty/freetype/src/type42/type42.c
index 012559e2fd..d8d3936bdf 100644
--- a/thirdparty/freetype/src/type42/type42.c
+++ b/thirdparty/freetype/src/type42/type42.c
@@ -4,7 +4,7 @@
*
* FreeType Type 42 driver component.
*
- * Copyright (C) 2002-2020 by
+ * Copyright (C) 2002-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/winfonts/fnterrs.h b/thirdparty/freetype/src/winfonts/fnterrs.h
index 550de386fc..d582a9b99c 100644
--- a/thirdparty/freetype/src/winfonts/fnterrs.h
+++ b/thirdparty/freetype/src/winfonts/fnterrs.h
@@ -4,7 +4,7 @@
*
* Win FNT/FON error codes (specification only).
*
- * Copyright (C) 2001-2020 by
+ * Copyright (C) 2001-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
*
* This file is part of the FreeType project, and may only be used,
diff --git a/thirdparty/freetype/src/winfonts/module.mk b/thirdparty/freetype/src/winfonts/module.mk
deleted file mode 100644
index 4614c55fd0..0000000000
--- a/thirdparty/freetype/src/winfonts/module.mk
+++ /dev/null
@@ -1,23 +0,0 @@
-#
-# FreeType 2 Windows FNT/FON module definition
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-FTMODULE_H_COMMANDS += WINDOWS_DRIVER
-
-define WINDOWS_DRIVER
-$(OPEN_DRIVER) FT_Driver_ClassRec, winfnt_driver_class $(CLOSE_DRIVER)
-$(ECHO_DRIVER)winfnt $(ECHO_DRIVER_DESC)Windows bitmap fonts with extension *.fnt or *.fon$(ECHO_DRIVER_DONE)
-endef
-
-# EOF
diff --git a/thirdparty/freetype/src/winfonts/rules.mk b/thirdparty/freetype/src/winfonts/rules.mk
deleted file mode 100644
index e73ef5ea99..0000000000
--- a/thirdparty/freetype/src/winfonts/rules.mk
+++ /dev/null
@@ -1,68 +0,0 @@
-#
-# FreeType 2 Windows FNT/FON driver configuration rules
-#
-
-
-# Copyright (C) 1996-2020 by
-# David Turner, Robert Wilhelm, and Werner Lemberg.
-#
-# This file is part of the FreeType project, and may only be used, modified,
-# and distributed under the terms of the FreeType project license,
-# LICENSE.TXT. By continuing to use, modify, or distribute this file you
-# indicate that you have read the license and understand and accept it
-# fully.
-
-
-# Windows driver directory
-#
-FNT_DIR := $(SRC_DIR)/winfonts
-
-
-FNT_COMPILE := $(CC) $(ANSIFLAGS) \
- $I$(subst /,$(COMPILER_SEP),$(FNT_DIR)) \
- $(INCLUDE_FLAGS) \
- $(FT_CFLAGS)
-
-
-# Windows driver sources (i.e., C files)
-#
-FNT_DRV_SRC := $(FNT_DIR)/winfnt.c
-
-# Windows driver headers
-#
-FNT_DRV_H := $(FNT_DRV_SRC:%.c=%.h) \
- $(FNT_DIR)/fnterrs.h
-
-
-# Windows driver object(s)
-#
-# FNT_DRV_OBJ_M is used during `multi' builds
-# FNT_DRV_OBJ_S is used during `single' builds
-#
-FNT_DRV_OBJ_M := $(FNT_DRV_SRC:$(FNT_DIR)/%.c=$(OBJ_DIR)/%.$O)
-FNT_DRV_OBJ_S := $(OBJ_DIR)/winfnt.$O
-
-# Windows driver source file for single build
-#
-FNT_DRV_SRC_S := $(FNT_DIR)/winfnt.c
-
-
-# Windows driver - single object
-#
-$(FNT_DRV_OBJ_S): $(FNT_DRV_SRC_S) $(FNT_DRV_SRC) $(FREETYPE_H) $(FNT_DRV_H)
- $(FNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $(FNT_DRV_SRC_S))
-
-
-# Windows driver - multiple objects
-#
-$(OBJ_DIR)/%.$O: $(FNT_DIR)/%.c $(FREETYPE_H) $(FNT_DRV_H)
- $(FNT_COMPILE) $T$(subst /,$(COMPILER_SEP),$@ $<)
-
-
-# update main driver object lists
-#
-DRV_OBJS_S += $(FNT_DRV_OBJ_S)
-DRV_OBJS_M += $(FNT_DRV_OBJ_M)
-
-
-# EOF
diff --git a/thirdparty/freetype/src/winfonts/winfnt.c b/thirdparty/freetype/src/winfonts/winfnt.c
index e83312d166..b4fabad283 100644
--- a/thirdparty/freetype/src/winfonts/winfnt.c
+++ b/thirdparty/freetype/src/winfonts/winfnt.c
@@ -4,7 +4,7 @@
*
* FreeType font driver for Windows FNT/FON files
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
* Copyright 2003 Huw D M Davies for Codeweavers
* Copyright 2007 Dmitry Timoshkov for Codeweavers
@@ -217,7 +217,11 @@
/* first of all, read the FNT header */
if ( FT_STREAM_SEEK( font->offset ) ||
FT_STREAM_READ_FIELDS( winfnt_header_fields, header ) )
+ {
+ FT_TRACE2(( " not a Windows FNT file\n" ));
+ error = FT_THROW( Unknown_File_Format );
goto Exit;
+ }
/* check header */
if ( header->version != 0x200 &&
@@ -284,7 +288,10 @@
/* does it begin with an MZ header? */
if ( FT_STREAM_SEEK( 0 ) ||
FT_STREAM_READ_FIELDS( winmz_header_fields, &mz_header ) )
+ {
+ error = FT_ERR( Unknown_File_Format );
goto Exit;
+ }
error = FT_ERR( Unknown_File_Format );
if ( mz_header.magic == WINFNT_MZ_MAGIC )
@@ -420,12 +427,12 @@
goto Exit;
FT_TRACE2(( "magic %04lx, machine %02x, number_of_sections %u, "
- "size_of_optional_header %02x\n"
- "magic32 %02x, rsrc_virtual_address %04lx, "
- "rsrc_size %04lx\n",
+ "size_of_optional_header %02x\n",
pe32_header.magic, pe32_header.machine,
pe32_header.number_of_sections,
- pe32_header.size_of_optional_header,
+ pe32_header.size_of_optional_header ));
+ FT_TRACE2(( "magic32 %02x, rsrc_virtual_address %04lx, "
+ "rsrc_size %04lx\n",
pe32_header.magic32, pe32_header.rsrc_virtual_address,
pe32_header.rsrc_size ));
@@ -793,7 +800,7 @@
root->style_flags |= FT_STYLE_FLAG_BOLD;
/* set up the `fixed_sizes' array */
- if ( FT_NEW_ARRAY( root->available_sizes, 1 ) )
+ if ( FT_QNEW( root->available_sizes ) )
goto Fail;
root->num_fixed_sizes = 1;
@@ -885,10 +892,10 @@
}
family_size = font->header.file_size - font->header.face_name_offset;
/* Some broken fonts don't delimit the face name with a final */
- /* NULL byte -- the frame is erroneously one byte too small. */
+ /* null byte -- the frame is erroneously one byte too small. */
/* We thus allocate one more byte, setting it explicitly to */
/* zero. */
- if ( FT_ALLOC( font->family_name, family_size + 1 ) )
+ if ( FT_QALLOC( font->family_name, family_size + 1 ) )
goto Fail;
FT_MEM_COPY( font->family_name,
@@ -897,9 +904,10 @@
font->family_name[family_size] = '\0';
- if ( FT_REALLOC( font->family_name,
- family_size,
- ft_strlen( font->family_name ) + 1 ) )
+ /* shrink it to the actual length */
+ if ( FT_QREALLOC( font->family_name,
+ family_size + 1,
+ ft_strlen( font->family_name ) + 1 ) )
goto Fail;
root->family_name = font->family_name;
@@ -1094,7 +1102,7 @@
/* note: since glyphs are stored in columns and not in rows we */
/* can't use ft_glyphslot_set_bitmap */
- if ( FT_ALLOC_MULT( bitmap->buffer, bitmap->rows, pitch ) )
+ if ( FT_QALLOC_MULT( bitmap->buffer, bitmap->rows, pitch ) )
goto Exit;
column = (FT_Byte*)bitmap->buffer;
diff --git a/thirdparty/freetype/src/winfonts/winfnt.h b/thirdparty/freetype/src/winfonts/winfnt.h
index 3367c7715e..a7134abd9c 100644
--- a/thirdparty/freetype/src/winfonts/winfnt.h
+++ b/thirdparty/freetype/src/winfonts/winfnt.h
@@ -4,7 +4,7 @@
*
* FreeType font driver for Windows FNT/FON files
*
- * Copyright (C) 1996-2020 by
+ * Copyright (C) 1996-2021 by
* David Turner, Robert Wilhelm, and Werner Lemberg.
* Copyright 2007 Dmitry Timoshkov for Codeweavers
*