The Tor Browser / file comparison
comparison: media/libtheora/lib/fragment.c
media/libtheora/lib/fragment.c
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
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| -1:000000000000 | 0:6ae542299b74 |
|---|---|
| 1 /******************************************************************** | |
| 2 * * | |
| 3 * THIS FILE IS PART OF THE OggTheora SOFTWARE CODEC SOURCE CODE. * | |
| 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * | |
| 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * | |
| 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * | |
| 7 * * | |
| 8 * THE Theora SOURCE CODE IS COPYRIGHT (C) 2002-2009 * | |
| 9 * by the Xiph.Org Foundation and contributors http://www.xiph.org/ * | |
| 10 * * | |
| 11 ******************************************************************** | |
| 12 | |
| 13 function: | |
| 14 last mod: $Id: fragment.c 17410 2010-09-21 21:53:48Z tterribe $ | |
| 15 | |
| 16 ********************************************************************/ | |
| 17 #include <string.h> | |
| 18 #include "internal.h" | |
| 19 | |
| 20 void oc_frag_copy_c(unsigned char *_dst,const unsigned char *_src,int _ystride){ | |
| 21 int i; | |
| 22 for(i=8;i-->0;){ | |
| 23 memcpy(_dst,_src,8*sizeof(*_dst)); | |
| 24 _dst+=_ystride; | |
| 25 _src+=_ystride; | |
| 26 } | |
| 27 } | |
| 28 | |
| 29 /*Copies the fragments specified by the lists of fragment indices from one | |
| 30 frame to another. | |
| 31 _dst_frame: The reference frame to copy to. | |
| 32 _src_frame: The reference frame to copy from. | |
| 33 _ystride: The row stride of the reference frames. | |
| 34 _fragis: A pointer to a list of fragment indices. | |
| 35 _nfragis: The number of fragment indices to copy. | |
| 36 _frag_buf_offs: The offsets of fragments in the reference frames.*/ | |
| 37 void oc_frag_copy_list_c(unsigned char *_dst_frame, | |
| 38 const unsigned char *_src_frame,int _ystride, | |
| 39 const ptrdiff_t *_fragis,ptrdiff_t _nfragis,const ptrdiff_t *_frag_buf_offs){ | |
| 40 ptrdiff_t fragii; | |
| 41 for(fragii=0;fragii<_nfragis;fragii++){ | |
| 42 ptrdiff_t frag_buf_off; | |
| 43 frag_buf_off=_frag_buf_offs[_fragis[fragii]]; | |
| 44 oc_frag_copy_c(_dst_frame+frag_buf_off, | |
| 45 _src_frame+frag_buf_off,_ystride); | |
| 46 } | |
| 47 } | |
| 48 | |
| 49 void oc_frag_recon_intra_c(unsigned char *_dst,int _ystride, | |
| 50 const ogg_int16_t _residue[64]){ | |
| 51 int i; | |
| 52 for(i=0;i<8;i++){ | |
| 53 int j; | |
| 54 for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+128); | |
| 55 _dst+=_ystride; | |
| 56 } | |
| 57 } | |
| 58 | |
| 59 void oc_frag_recon_inter_c(unsigned char *_dst, | |
| 60 const unsigned char *_src,int _ystride,const ogg_int16_t _residue[64]){ | |
| 61 int i; | |
| 62 for(i=0;i<8;i++){ | |
| 63 int j; | |
| 64 for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+_src[j]); | |
| 65 _dst+=_ystride; | |
| 66 _src+=_ystride; | |
| 67 } | |
| 68 } | |
| 69 | |
| 70 void oc_frag_recon_inter2_c(unsigned char *_dst,const unsigned char *_src1, | |
| 71 const unsigned char *_src2,int _ystride,const ogg_int16_t _residue[64]){ | |
| 72 int i; | |
| 73 for(i=0;i<8;i++){ | |
| 74 int j; | |
| 75 for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+(_src1[j]+_src2[j]>>1)); | |
| 76 _dst+=_ystride; | |
| 77 _src1+=_ystride; | |
| 78 _src2+=_ystride; | |
| 79 } | |
| 80 } | |
| 81 | |
| 82 void oc_restore_fpu_c(void){} |
