virtualx-engine/thirdparty/libtheora/fragment.c

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2014-02-10 02:10:30 +01:00
/********************************************************************
* *
* 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 16503 2009-08-22 18:14:02Z giles $
********************************************************************/
#include <string.h>
#include "internal.h"
void oc_frag_copy(const oc_theora_state *_state,unsigned char *_dst,
const unsigned char *_src,int _ystride){
(*_state->opt_vtable.frag_copy)(_dst,_src,_ystride);
}
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;
}
}
void oc_frag_recon_intra(const oc_theora_state *_state,unsigned char *_dst,
int _ystride,const ogg_int16_t _residue[64]){
_state->opt_vtable.frag_recon_intra(_dst,_ystride,_residue);
}
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(const oc_theora_state *_state,unsigned char *_dst,
const unsigned char *_src,int _ystride,const ogg_int16_t _residue[64]){
_state->opt_vtable.frag_recon_inter(_dst,_src,_ystride,_residue);
}
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(const oc_theora_state *_state,unsigned char *_dst,
const unsigned char *_src1,const unsigned char *_src2,int _ystride,
const ogg_int16_t _residue[64]){
_state->opt_vtable.frag_recon_inter2(_dst,_src1,_src2,_ystride,_residue);
}
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(const oc_theora_state *_state){
_state->opt_vtable.restore_fpu();
}
void oc_restore_fpu_c(void){}