/******************************************************************** * * * 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 and contributors http://www.xiph.org/ * * * ******************************************************************** function: last mod: $Id: fragment.c 17410 2010-09-21 21:53:48Z tterribe $ ********************************************************************/ #include <string.h> #include "internal.h" void oc_frag_copy_c(unsigned char *_dst,const unsigned char *_src,int _ystride){ int i; for(i=8;i-->0;){ memcpy(_dst,_src,8*sizeof(*_dst)); _dst+=_ystride; _src+=_ystride; } } /*Copies the fragments specified by the lists of fragment indices from one frame to another. _dst_frame: The reference frame to copy to. _src_frame: The reference frame to copy from. _ystride: The row stride of the reference frames. _fragis: A pointer to a list of fragment indices. _nfragis: The number of fragment indices to copy. _frag_buf_offs: The offsets of fragments in the reference frames.*/ void oc_frag_copy_list_c(unsigned char *_dst_frame, const unsigned char *_src_frame,int _ystride, const ptrdiff_t *_fragis,ptrdiff_t _nfragis,const ptrdiff_t *_frag_buf_offs){ ptrdiff_t fragii; for(fragii=0;fragii<_nfragis;fragii++){ ptrdiff_t frag_buf_off; frag_buf_off=_frag_buf_offs[_fragis[fragii]]; oc_frag_copy_c(_dst_frame+frag_buf_off, _src_frame+frag_buf_off,_ystride); } } void oc_frag_recon_intra_c(unsigned char *_dst,int _ystride, const ogg_int16_t _residue[64]){ int i; for(i=0;i<8;i++){ int j; for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+128); _dst+=_ystride; } } void oc_frag_recon_inter_c(unsigned char *_dst, const unsigned char *_src,int _ystride,const ogg_int16_t _residue[64]){ int i; for(i=0;i<8;i++){ int j; for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+_src[j]); _dst+=_ystride; _src+=_ystride; } } void oc_frag_recon_inter2_c(unsigned char *_dst,const unsigned char *_src1, const unsigned char *_src2,int _ystride,const ogg_int16_t _residue[64]){ int i; for(i=0;i<8;i++){ int j; for(j=0;j<8;j++)_dst[j]=OC_CLAMP255(_residue[i*8+j]+(_src1[j]+_src2[j]>>1)); _dst+=_ystride; _src1+=_ystride; _src2+=_ystride; } } void oc_restore_fpu_c(void){}