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Add AltiVec versions of h264_idct_add(8|16|16intra), 

allowing to re-enable ff_h264_idct_add_altivec's usage.

Patch by David Conrad %lessen42 A gmail P com%

Originally committed as revision 16465 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
David Conrad 2009-01-07 13:54:26 +00:00 committed by Guillaume Poirier
parent e7b987dc2f
commit b06688ffed
1 changed files with 32 additions and 3 deletions
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35
libavcodec/ppc/h264_altivec.c
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@ -651,6 +651,25 @@ static void ff_h264_idct8_dc_add_altivec(uint8_t *dst, DCTELEM *block, int strid
h264_idct_dc_add_internal(dst, block, stride, 8);
}
static void ff_h264_idct_add16_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i++){
int nnz = nnzc[ scan8[i] ];
if(nnz){
if(nnz==1 && block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
else ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
}
}
}
static void ff_h264_idct_add16intra_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i++){
if(nnzc[ scan8[i] ]) ff_h264_idct_add_altivec(dst + block_offset[i], block + i*16, stride);
else if(block[i*16]) h264_idct_dc_add_altivec(dst + block_offset[i], block + i*16, stride);
}
}
static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=0; i<16; i+=4){
@ -662,6 +681,16 @@ static void ff_h264_idct8_add4_altivec(uint8_t *dst, const int *block_offset, DC
}
}
static void ff_h264_idct_add8_altivec(uint8_t **dest, const int *block_offset, DCTELEM *block, int stride, const uint8_t nnzc[6*8]){
int i;
for(i=16; i<16+8; i++){
if(nnzc[ scan8[i] ])
ff_h264_idct_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
else if(block[i*16])
h264_idct_dc_add_altivec(dest[(i&4)>>2] + block_offset[i], block + i*16, stride);
}
}
#define transpose4x16(r0, r1, r2, r3) { \
register vec_u8 r4; \
register vec_u8 r5; \
@ -1065,10 +1094,10 @@ void dsputil_h264_init_ppc(DSPContext* c, AVCodecContext *avctx) {
c->put_h264_chroma_pixels_tab[0] = put_h264_chroma_mc8_altivec;
c->put_no_rnd_h264_chroma_pixels_tab[0] = put_no_rnd_h264_chroma_mc8_altivec;
c->avg_h264_chroma_pixels_tab[0] = avg_h264_chroma_mc8_altivec;
/* ff_h264_idct_add_altivec may be re-enabled once AltiVec versions of
h264_idct_add16, h264_idct_add16intra, h264_idct_add8 are implemented
c->h264_idct_add = ff_h264_idct_add_altivec;
*/
c->h264_idct_add8 = ff_h264_idct_add8_altivec;
c->h264_idct_add16 = ff_h264_idct_add16_altivec;
c->h264_idct_add16intra = ff_h264_idct_add16intra_altivec;
c->h264_idct_dc_add= h264_idct_dc_add_altivec;
c->h264_idct8_dc_add = ff_h264_idct8_dc_add_altivec;
c->h264_idct8_add = ff_h264_idct8_add_altivec;