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ffmpeg.wasm-core
Commit 9f5d4502 authored by Ronald S. Bultje's avatar Ronald S. Bultje
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swscale: fix non-bitexact yuv2yuv[X2]() MMX/MMX2 functions.

parent 6348a96c
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Showing with 6 additions and 4 deletions
libswscale/x86/swscale_template.c
View file @ 9f5d4502
......@@ -59,7 +59,7 @@
"psraw $3, %%mm3 \n\t"\
"psraw $3, %%mm4 \n\t"\
"packuswb %%mm4, %%mm3 \n\t"\
MOVNTQ(%%mm3, (%1, %%REGa))\
MOVNTQ(%%mm3, (%1, %3))\
"add $8, %3 \n\t"\
"cmp %2, %3 \n\t"\
"movq "VROUNDER_OFFSET"(%0), %%mm3 \n\t"\
......@@ -81,8 +81,9 @@ static inline void RENAME(yuv2yuvX)(SwsContext *c, const int16_t *lumFilter,
uint8_t *aDest, long dstW, long chrDstW)
{
if (uDest) {
x86_reg uv_off = c->uv_off;
YSCALEYUV2YV12X(CHR_MMX_FILTER_OFFSET, uDest, chrDstW, 0)
YSCALEYUV2YV12X(CHR_MMX_FILTER_OFFSET, vDest, chrDstW + c->uv_off, c->uv_off)
YSCALEYUV2YV12X(CHR_MMX_FILTER_OFFSET, vDest - uv_off, chrDstW + uv_off, uv_off)
}
if (CONFIG_SWSCALE_ALPHA && aDest) {
YSCALEYUV2YV12X(ALP_MMX_FILTER_OFFSET, aDest, dstW, 0)
......@@ -137,7 +138,7 @@ static inline void RENAME(yuv2yuvX)(SwsContext *c, const int16_t *lumFilter,
"psraw $3, %%mm4 \n\t"\
"psraw $3, %%mm6 \n\t"\
"packuswb %%mm6, %%mm4 \n\t"\
MOVNTQ(%%mm4, (%1, %%REGa))\
MOVNTQ(%%mm4, (%1, %3))\
"add $8, %3 \n\t"\
"cmp %2, %3 \n\t"\
"lea " offset "(%0), %%"REG_d" \n\t"\
......@@ -161,8 +162,9 @@ static inline void RENAME(yuv2yuvX_ar)(SwsContext *c, const int16_t *lumFilter,
uint8_t *aDest, long dstW, long chrDstW)
{
if (uDest) {
x86_reg uv_off = c->uv_off;
YSCALEYUV2YV12X_ACCURATE(CHR_MMX_FILTER_OFFSET, uDest, chrDstW, 0)
YSCALEYUV2YV12X_ACCURATE(CHR_MMX_FILTER_OFFSET, vDest, chrDstW + c->uv_off, c->uv_off)
YSCALEYUV2YV12X_ACCURATE(CHR_MMX_FILTER_OFFSET, vDest - uv_off, chrDstW + uv_off, uv_off)
}
if (CONFIG_SWSCALE_ALPHA && aDest) {
YSCALEYUV2YV12X_ACCURATE(ALP_MMX_FILTER_OFFSET, aDest, dstW, 0)
......
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