summaryrefslogtreecommitdiff
path: root/thirdparty/libtheora/encfrag.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/libtheora/encfrag.c')
-rw-r--r--thirdparty/libtheora/encfrag.c388
1 files changed, 388 insertions, 0 deletions
diff --git a/thirdparty/libtheora/encfrag.c b/thirdparty/libtheora/encfrag.c
new file mode 100644
index 0000000000..bb814c8e4a
--- /dev/null
+++ b/thirdparty/libtheora/encfrag.c
@@ -0,0 +1,388 @@
+/********************************************************************
+ * *
+ * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. *
+ * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
+ * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
+ * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
+ * *
+ * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 *
+ * by the Xiph.Org Foundation http://www.xiph.org/ *
+ * *
+ ********************************************************************
+
+ function:
+ last mod: $Id: encfrag.c 16503 2009-08-22 18:14:02Z giles $
+
+ ********************************************************************/
+#include <stdlib.h>
+#include <string.h>
+#include "encint.h"
+
+
+void oc_enc_frag_sub(const oc_enc_ctx *_enc,ogg_int16_t _diff[64],
+ const unsigned char *_src,const unsigned char *_ref,int _ystride){
+ (*_enc->opt_vtable.frag_sub)(_diff,_src,_ref,_ystride);
+}
+
+void oc_enc_frag_sub_c(ogg_int16_t _diff[64],const unsigned char *_src,
+ const unsigned char *_ref,int _ystride){
+ int i;
+ for(i=0;i<8;i++){
+ int j;
+ for(j=0;j<8;j++)_diff[i*8+j]=(ogg_int16_t)(_src[j]-_ref[j]);
+ _src+=_ystride;
+ _ref+=_ystride;
+ }
+}
+
+void oc_enc_frag_sub_128(const oc_enc_ctx *_enc,ogg_int16_t _diff[64],
+ const unsigned char *_src,int _ystride){
+ (*_enc->opt_vtable.frag_sub_128)(_diff,_src,_ystride);
+}
+
+void oc_enc_frag_sub_128_c(ogg_int16_t *_diff,
+ const unsigned char *_src,int _ystride){
+ int i;
+ for(i=0;i<8;i++){
+ int j;
+ for(j=0;j<8;j++)_diff[i*8+j]=(ogg_int16_t)(_src[j]-128);
+ _src+=_ystride;
+ }
+}
+
+unsigned oc_enc_frag_sad(const oc_enc_ctx *_enc,const unsigned char *_x,
+ const unsigned char *_y,int _ystride){
+ return (*_enc->opt_vtable.frag_sad)(_x,_y,_ystride);
+}
+
+unsigned oc_enc_frag_sad_c(const unsigned char *_src,
+ const unsigned char *_ref,int _ystride){
+ unsigned sad;
+ int i;
+ sad=0;
+ for(i=8;i-->0;){
+ int j;
+ for(j=0;j<8;j++)sad+=abs(_src[j]-_ref[j]);
+ _src+=_ystride;
+ _ref+=_ystride;
+ }
+ return sad;
+}
+
+unsigned oc_enc_frag_sad_thresh(const oc_enc_ctx *_enc,
+ const unsigned char *_src,const unsigned char *_ref,int _ystride,
+ unsigned _thresh){
+ return (*_enc->opt_vtable.frag_sad_thresh)(_src,_ref,_ystride,_thresh);
+}
+
+unsigned oc_enc_frag_sad_thresh_c(const unsigned char *_src,
+ const unsigned char *_ref,int _ystride,unsigned _thresh){
+ unsigned sad;
+ int i;
+ sad=0;
+ for(i=8;i-->0;){
+ int j;
+ for(j=0;j<8;j++)sad+=abs(_src[j]-_ref[j]);
+ if(sad>_thresh)break;
+ _src+=_ystride;
+ _ref+=_ystride;
+ }
+ return sad;
+}
+
+unsigned oc_enc_frag_sad2_thresh(const oc_enc_ctx *_enc,
+ const unsigned char *_src,const unsigned char *_ref1,
+ const unsigned char *_ref2,int _ystride,unsigned _thresh){
+ return (*_enc->opt_vtable.frag_sad2_thresh)(_src,_ref1,_ref2,_ystride,
+ _thresh);
+}
+
+unsigned oc_enc_frag_sad2_thresh_c(const unsigned char *_src,
+ const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
+ unsigned _thresh){
+ unsigned sad;
+ int i;
+ sad=0;
+ for(i=8;i-->0;){
+ int j;
+ for(j=0;j<8;j++)sad+=abs(_src[j]-(_ref1[j]+_ref2[j]>>1));
+ if(sad>_thresh)break;
+ _src+=_ystride;
+ _ref1+=_ystride;
+ _ref2+=_ystride;
+ }
+ return sad;
+}
+
+static void oc_diff_hadamard(ogg_int16_t _buf[64],const unsigned char *_src,
+ const unsigned char *_ref,int _ystride){
+ int i;
+ for(i=0;i<8;i++){
+ int t0;
+ int t1;
+ int t2;
+ int t3;
+ int t4;
+ int t5;
+ int t6;
+ int t7;
+ int r;
+ /*Hadamard stage 1:*/
+ t0=_src[0]-_ref[0]+_src[4]-_ref[4];
+ t4=_src[0]-_ref[0]-_src[4]+_ref[4];
+ t1=_src[1]-_ref[1]+_src[5]-_ref[5];
+ t5=_src[1]-_ref[1]-_src[5]+_ref[5];
+ t2=_src[2]-_ref[2]+_src[6]-_ref[6];
+ t6=_src[2]-_ref[2]-_src[6]+_ref[6];
+ t3=_src[3]-_ref[3]+_src[7]-_ref[7];
+ t7=_src[3]-_ref[3]-_src[7]+_ref[7];
+ /*Hadamard stage 2:*/
+ r=t0;
+ t0+=t2;
+ t2=r-t2;
+ r=t1;
+ t1+=t3;
+ t3=r-t3;
+ r=t4;
+ t4+=t6;
+ t6=r-t6;
+ r=t5;
+ t5+=t7;
+ t7=r-t7;
+ /*Hadamard stage 3:*/
+ _buf[0*8+i]=(ogg_int16_t)(t0+t1);
+ _buf[1*8+i]=(ogg_int16_t)(t0-t1);
+ _buf[2*8+i]=(ogg_int16_t)(t2+t3);
+ _buf[3*8+i]=(ogg_int16_t)(t2-t3);
+ _buf[4*8+i]=(ogg_int16_t)(t4+t5);
+ _buf[5*8+i]=(ogg_int16_t)(t4-t5);
+ _buf[6*8+i]=(ogg_int16_t)(t6+t7);
+ _buf[7*8+i]=(ogg_int16_t)(t6-t7);
+ _src+=_ystride;
+ _ref+=_ystride;
+ }
+}
+
+static void oc_diff_hadamard2(ogg_int16_t _buf[64],const unsigned char *_src,
+ const unsigned char *_ref1,const unsigned char *_ref2,int _ystride){
+ int i;
+ for(i=0;i<8;i++){
+ int t0;
+ int t1;
+ int t2;
+ int t3;
+ int t4;
+ int t5;
+ int t6;
+ int t7;
+ int r;
+ /*Hadamard stage 1:*/
+ r=_ref1[0]+_ref2[0]>>1;
+ t4=_ref1[4]+_ref2[4]>>1;
+ t0=_src[0]-r+_src[4]-t4;
+ t4=_src[0]-r-_src[4]+t4;
+ r=_ref1[1]+_ref2[1]>>1;
+ t5=_ref1[5]+_ref2[5]>>1;
+ t1=_src[1]-r+_src[5]-t5;
+ t5=_src[1]-r-_src[5]+t5;
+ r=_ref1[2]+_ref2[2]>>1;
+ t6=_ref1[6]+_ref2[6]>>1;
+ t2=_src[2]-r+_src[6]-t6;
+ t6=_src[2]-r-_src[6]+t6;
+ r=_ref1[3]+_ref2[3]>>1;
+ t7=_ref1[7]+_ref2[7]>>1;
+ t3=_src[3]-r+_src[7]-t7;
+ t7=_src[3]-r-_src[7]+t7;
+ /*Hadamard stage 2:*/
+ r=t0;
+ t0+=t2;
+ t2=r-t2;
+ r=t1;
+ t1+=t3;
+ t3=r-t3;
+ r=t4;
+ t4+=t6;
+ t6=r-t6;
+ r=t5;
+ t5+=t7;
+ t7=r-t7;
+ /*Hadamard stage 3:*/
+ _buf[0*8+i]=(ogg_int16_t)(t0+t1);
+ _buf[1*8+i]=(ogg_int16_t)(t0-t1);
+ _buf[2*8+i]=(ogg_int16_t)(t2+t3);
+ _buf[3*8+i]=(ogg_int16_t)(t2-t3);
+ _buf[4*8+i]=(ogg_int16_t)(t4+t5);
+ _buf[5*8+i]=(ogg_int16_t)(t4-t5);
+ _buf[6*8+i]=(ogg_int16_t)(t6+t7);
+ _buf[7*8+i]=(ogg_int16_t)(t6-t7);
+ _src+=_ystride;
+ _ref1+=_ystride;
+ _ref2+=_ystride;
+ }
+}
+
+static void oc_intra_hadamard(ogg_int16_t _buf[64],const unsigned char *_src,
+ int _ystride){
+ int i;
+ for(i=0;i<8;i++){
+ int t0;
+ int t1;
+ int t2;
+ int t3;
+ int t4;
+ int t5;
+ int t6;
+ int t7;
+ int r;
+ /*Hadamard stage 1:*/
+ t0=_src[0]+_src[4];
+ t4=_src[0]-_src[4];
+ t1=_src[1]+_src[5];
+ t5=_src[1]-_src[5];
+ t2=_src[2]+_src[6];
+ t6=_src[2]-_src[6];
+ t3=_src[3]+_src[7];
+ t7=_src[3]-_src[7];
+ /*Hadamard stage 2:*/
+ r=t0;
+ t0+=t2;
+ t2=r-t2;
+ r=t1;
+ t1+=t3;
+ t3=r-t3;
+ r=t4;
+ t4+=t6;
+ t6=r-t6;
+ r=t5;
+ t5+=t7;
+ t7=r-t7;
+ /*Hadamard stage 3:*/
+ _buf[0*8+i]=(ogg_int16_t)(t0+t1);
+ _buf[1*8+i]=(ogg_int16_t)(t0-t1);
+ _buf[2*8+i]=(ogg_int16_t)(t2+t3);
+ _buf[3*8+i]=(ogg_int16_t)(t2-t3);
+ _buf[4*8+i]=(ogg_int16_t)(t4+t5);
+ _buf[5*8+i]=(ogg_int16_t)(t4-t5);
+ _buf[6*8+i]=(ogg_int16_t)(t6+t7);
+ _buf[7*8+i]=(ogg_int16_t)(t6-t7);
+ _src+=_ystride;
+ }
+}
+
+unsigned oc_hadamard_sad_thresh(const ogg_int16_t _buf[64],unsigned _thresh){
+ unsigned sad;
+ int t0;
+ int t1;
+ int t2;
+ int t3;
+ int t4;
+ int t5;
+ int t6;
+ int t7;
+ int r;
+ int i;
+ sad=0;
+ for(i=0;i<8;i++){
+ /*Hadamard stage 1:*/
+ t0=_buf[i*8+0]+_buf[i*8+4];
+ t4=_buf[i*8+0]-_buf[i*8+4];
+ t1=_buf[i*8+1]+_buf[i*8+5];
+ t5=_buf[i*8+1]-_buf[i*8+5];
+ t2=_buf[i*8+2]+_buf[i*8+6];
+ t6=_buf[i*8+2]-_buf[i*8+6];
+ t3=_buf[i*8+3]+_buf[i*8+7];
+ t7=_buf[i*8+3]-_buf[i*8+7];
+ /*Hadamard stage 2:*/
+ r=t0;
+ t0+=t2;
+ t2=r-t2;
+ r=t1;
+ t1+=t3;
+ t3=r-t3;
+ r=t4;
+ t4+=t6;
+ t6=r-t6;
+ r=t5;
+ t5+=t7;
+ t7=r-t7;
+ /*Hadamard stage 3:*/
+ r=abs(t0+t1);
+ r+=abs(t0-t1);
+ r+=abs(t2+t3);
+ r+=abs(t2-t3);
+ r+=abs(t4+t5);
+ r+=abs(t4-t5);
+ r+=abs(t6+t7);
+ r+=abs(t6-t7);
+ sad+=r;
+ if(sad>_thresh)break;
+ }
+ return sad;
+}
+
+unsigned oc_enc_frag_satd_thresh(const oc_enc_ctx *_enc,
+ const unsigned char *_src,const unsigned char *_ref,int _ystride,
+ unsigned _thresh){
+ return (*_enc->opt_vtable.frag_satd_thresh)(_src,_ref,_ystride,_thresh);
+}
+
+unsigned oc_enc_frag_satd_thresh_c(const unsigned char *_src,
+ const unsigned char *_ref,int _ystride,unsigned _thresh){
+ ogg_int16_t buf[64];
+ oc_diff_hadamard(buf,_src,_ref,_ystride);
+ return oc_hadamard_sad_thresh(buf,_thresh);
+}
+
+unsigned oc_enc_frag_satd2_thresh(const oc_enc_ctx *_enc,
+ const unsigned char *_src,const unsigned char *_ref1,
+ const unsigned char *_ref2,int _ystride,unsigned _thresh){
+ return (*_enc->opt_vtable.frag_satd2_thresh)(_src,_ref1,_ref2,_ystride,
+ _thresh);
+}
+
+unsigned oc_enc_frag_satd2_thresh_c(const unsigned char *_src,
+ const unsigned char *_ref1,const unsigned char *_ref2,int _ystride,
+ unsigned _thresh){
+ ogg_int16_t buf[64];
+ oc_diff_hadamard2(buf,_src,_ref1,_ref2,_ystride);
+ return oc_hadamard_sad_thresh(buf,_thresh);
+}
+
+unsigned oc_enc_frag_intra_satd(const oc_enc_ctx *_enc,
+ const unsigned char *_src,int _ystride){
+ return (*_enc->opt_vtable.frag_intra_satd)(_src,_ystride);
+}
+
+unsigned oc_enc_frag_intra_satd_c(const unsigned char *_src,int _ystride){
+ ogg_int16_t buf[64];
+ oc_intra_hadamard(buf,_src,_ystride);
+ return oc_hadamard_sad_thresh(buf,UINT_MAX)
+ -abs(buf[0]+buf[1]+buf[2]+buf[3]+buf[4]+buf[5]+buf[6]+buf[7]);
+}
+
+void oc_enc_frag_copy2(const oc_enc_ctx *_enc,unsigned char *_dst,
+ const unsigned char *_src1,const unsigned char *_src2,int _ystride){
+ (*_enc->opt_vtable.frag_copy2)(_dst,_src1,_src2,_ystride);
+}
+
+void oc_enc_frag_copy2_c(unsigned char *_dst,
+ const unsigned char *_src1,const unsigned char *_src2,int _ystride){
+ int i;
+ int j;
+ for(i=8;i-->0;){
+ for(j=0;j<8;j++)_dst[j]=_src1[j]+_src2[j]>>1;
+ _dst+=_ystride;
+ _src1+=_ystride;
+ _src2+=_ystride;
+ }
+}
+
+void oc_enc_frag_recon_intra(const oc_enc_ctx *_enc,
+ unsigned char *_dst,int _ystride,const ogg_int16_t _residue[64]){
+ (*_enc->opt_vtable.frag_recon_intra)(_dst,_ystride,_residue);
+}
+
+void oc_enc_frag_recon_inter(const oc_enc_ctx *_enc,unsigned char *_dst,
+ const unsigned char *_src,int _ystride,const ogg_int16_t _residue[64]){
+ (*_enc->opt_vtable.frag_recon_inter)(_dst,_src,_ystride,_residue);
+}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-22 06:13:11 +0000