[Complex Text Layouts] Add third-party TextServer dependencies (ICU, HarfBuzz, Graphite).

1 files changed, 128 insertions, 0 deletions

diff --git a/thirdparty/graphite/src/inc/Silf.h b/thirdparty/graphite/src/inc/Silf.h
new file mode 100644
index 0000000000..edc0c3a16d
--- /dev/null
+++ b/thirdparty/graphite/src/inc/Silf.h
@@ -0,0 +1,128 @@
+/*  GRAPHITE2 LICENSING
+
+    Copyright 2010, SIL International
+    All rights reserved.
+
+    This library is free software; you can redistribute it and/or modify
+    it under the terms of the GNU Lesser General Public License as published
+    by the Free Software Foundation; either version 2.1 of License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Lesser General Public License for more details.
+
+    You should also have received a copy of the GNU Lesser General Public
+    License along with this library in the file named "LICENSE".
+    If not, write to the Free Software Foundation, 51 Franklin Street,
+    Suite 500, Boston, MA 02110-1335, USA or visit their web page on the
+    internet at http://www.fsf.org/licenses/lgpl.html.
+
+Alternatively, the contents of this file may be used under the terms of the
+Mozilla Public License (http://mozilla.org/MPL) or the GNU General Public
+License, as published by the Free Software Foundation, either version 2
+of the License or (at your option) any later version.
+*/
+#pragma once
+
+#include "graphite2/Font.h"
+#include "inc/Main.h"
+#include "inc/Pass.h"
+
+namespace graphite2 {
+
+class Face;
+class Segment;
+class FeatureVal;
+class VMScratch;
+class Error;
+
+class Pseudo
+{
+public:
+    uint32 uid;
+    uint32 gid;
+    CLASS_NEW_DELETE;
+};
+
+class Justinfo
+{
+public:
+    Justinfo(uint8 stretch, uint8 shrink, uint8 step, uint8 weight) :
+        m_astretch(stretch), m_ashrink(shrink), m_astep(step),
+        m_aweight(weight) {};
+    uint8 attrStretch() const { return m_astretch; }
+    uint8 attrShrink() const { return m_ashrink; }
+    uint8 attrStep() const { return m_astep; }
+    uint8 attrWeight() const { return m_aweight; }
+
+private:
+    uint8   m_astretch;
+    uint8   m_ashrink;
+    uint8   m_astep;
+    uint8   m_aweight;
+};
+
+class Silf
+{
+    // Prevent copying
+    Silf(const Silf&);
+    Silf& operator=(const Silf&);
+
+public:
+    Silf() throw();
+    ~Silf() throw();
+
+    bool readGraphite(const byte * const pSilf, size_t lSilf, Face &face, uint32 version);
+    bool runGraphite(Segment *seg, uint8 firstPass=0, uint8 lastPass=0, int dobidi = 0) const;
+    uint16 findClassIndex(uint16 cid, uint16 gid) const;
+    uint16 getClassGlyph(uint16 cid, unsigned int index) const;
+    uint16 findPseudo(uint32 uid) const;
+    uint8 numUser() const { return m_aUser; }
+    uint8 aPseudo() const { return m_aPseudo; }
+    uint8 aBreak() const { return m_aBreak; }
+    uint8 aMirror() const {return m_aMirror; }
+    uint8 aPassBits() const { return m_aPassBits; }
+    uint8 aBidi() const { return m_aBidi; }
+    uint8 aCollision() const { return m_aCollision; }
+    uint8 substitutionPass() const { return m_sPass; }
+    uint8 positionPass() const { return m_pPass; }
+    uint8 justificationPass() const { return m_jPass; }
+    uint8 bidiPass() const { return m_bPass; }
+    uint8 numPasses() const { return m_numPasses; }
+    uint8 maxCompPerLig() const { return m_iMaxComp; }
+    uint16 numClasses() const { return m_nClass; }
+    byte  flags() const { return m_flags; }
+    byte  dir() const { return m_dir; }
+    uint8 numJustLevels() const { return m_numJusts; }
+    Justinfo *justAttrs() const { return m_justs; }
+    uint16 endLineGlyphid() const { return m_gEndLine; }
+    const gr_faceinfo *silfInfo() const { return &m_silfinfo; }
+
+    CLASS_NEW_DELETE;
+
+private:
+    size_t readClassMap(const byte *p, size_t data_len, uint32 version, Error &e);
+    template<typename T> inline uint32 readClassOffsets(const byte *&p, size_t data_len, Error &e);
+
+    Pass          * m_passes;
+    Pseudo        * m_pseudos;
+    uint32        * m_classOffsets;
+    uint16        * m_classData;
+    Justinfo      * m_justs;
+    uint8           m_numPasses;
+    uint8           m_numJusts;
+    uint8           m_sPass, m_pPass, m_jPass, m_bPass,
+                    m_flags, m_dir;
+
+    uint8       m_aPseudo, m_aBreak, m_aUser, m_aBidi, m_aMirror, m_aPassBits,
+                m_iMaxComp, m_aCollision;
+    uint16      m_aLig, m_numPseudo, m_nClass, m_nLinear,
+                m_gEndLine;
+    gr_faceinfo m_silfinfo;
+
+    void releaseBuffers() throw();
+};
+
+} // namespace graphite2