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VP8: idct_mb optimizations

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Currently uses AV_RL32 instead of AV_RL32A, as the latter doesn't exist yet.
(cherry picked from commit 62457f9052)
oldabi
Jason Garrett-Glaser 14 years ago committed by Michael Niedermayer
parent a239d534d7
commit a1b0a3c8bd
1 changed files with 16 additions and 16 deletions
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  1. 32
      libavcodec/vp8.c

32
libavcodec/vp8.c
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@ -1421,17 +1421,17 @@ static av_always_inline void idct_mb(VP8Context *s, uint8_t *dst[3], VP8Macroblo
if (mb->mode != MODE_I4x4) {
uint8_t *y_dst = dst[0];
for (y = 0; y < 4; y++) {
uint32_t nnz4 = AV_RN32A(s->non_zero_count_cache[y]);
uint32_t nnz4 = AV_RL32(s->non_zero_count_cache[y]);
if (nnz4) {
if (nnz4&~0x01010101) {
for (x = 0; x < 4; x++) {
int nnz = s->non_zero_count_cache[y][x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(y_dst+4*x, s->block[y][x], s->linesize);
else
s->vp8dsp.vp8_idct_add(y_dst+4*x, s->block[y][x], s->linesize);
}
if ((uint8_t)nnz4 == 1)
s->vp8dsp.vp8_idct_dc_add(y_dst+4*x, s->block[y][x], s->linesize);
else if((uint8_t)nnz4 > 1)
s->vp8dsp.vp8_idct_add(y_dst+4*x, s->block[y][x], s->linesize);
nnz4 >>= 8;
if (!nnz4)
break;
}
} else {
s->vp8dsp.vp8_idct_dc_add4y(y_dst, s->block[y], s->linesize);
@ -1442,19 +1442,19 @@ static av_always_inline void idct_mb(VP8Context *s, uint8_t *dst[3], VP8Macroblo
}
for (ch = 0; ch < 2; ch++) {
uint32_t nnz4 = AV_RN32A(s->non_zero_count_cache[4+ch]);
uint32_t nnz4 = AV_RL32(s->non_zero_count_cache[4+ch]);
if (nnz4) {
uint8_t *ch_dst = dst[1+ch];
if (nnz4&~0x01010101) {
for (y = 0; y < 2; y++) {
for (x = 0; x < 2; x++) {
int nnz = s->non_zero_count_cache[4+ch][(y<<1)+x];
if (nnz) {
if (nnz == 1)
s->vp8dsp.vp8_idct_dc_add(ch_dst+4*x, s->block[4+ch][(y<<1)+x], s->uvlinesize);
else
s->vp8dsp.vp8_idct_add(ch_dst+4*x, s->block[4+ch][(y<<1)+x], s->uvlinesize);
}
if ((uint8_t)nnz4 == 1)
s->vp8dsp.vp8_idct_dc_add(ch_dst+4*x, s->block[4+ch][(y<<1)+x], s->uvlinesize);
else if((uint8_t)nnz4 > 1)
s->vp8dsp.vp8_idct_add(ch_dst+4*x, s->block[4+ch][(y<<1)+x], s->uvlinesize);
nnz4 >>= 8;
if (!nnz4)
break;
}
ch_dst += 4*s->uvlinesize;
}

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