diff options
Diffstat (limited to 'libswscale/x86')
-rw-r--r-- | libswscale/x86/rgb2rgb_template.c | 42 |
1 files changed, 40 insertions, 2 deletions
diff --git a/libswscale/x86/rgb2rgb_template.c b/libswscale/x86/rgb2rgb_template.c index 1e12446859..3899d0a842 100644 --- a/libswscale/x86/rgb2rgb_template.c +++ b/libswscale/x86/rgb2rgb_template.c @@ -2186,6 +2186,44 @@ static void RENAME(extract_even)(const uint8_t *src, uint8_t *dst, x86_reg count } } +static void RENAME(extract_odd)(const uint8_t *src, uint8_t *dst, x86_reg count) +{ + src ++; + dst += count; + src += 2*count; + count= - count; + + if(count < -16) { + count += 16; + __asm__ volatile( + "pcmpeqw %%mm7, %%mm7 \n\t" + "psrlw $8, %%mm7 \n\t" + "1: \n\t" + "movq -32(%1, %0, 2), %%mm0 \n\t" + "movq -24(%1, %0, 2), %%mm1 \n\t" + "movq -16(%1, %0, 2), %%mm2 \n\t" + "movq -8(%1, %0, 2), %%mm3 \n\t" + "pand %%mm7, %%mm0 \n\t" + "pand %%mm7, %%mm1 \n\t" + "pand %%mm7, %%mm2 \n\t" + "pand %%mm7, %%mm3 \n\t" + "packuswb %%mm1, %%mm0 \n\t" + "packuswb %%mm3, %%mm2 \n\t" + MOVNTQ" %%mm0,-16(%2, %0) \n\t" + MOVNTQ" %%mm2,- 8(%2, %0) \n\t" + "add $16, %0 \n\t" + " js 1b \n\t" + : "+r"(count) + : "r"(src), "r"(dst) + ); + count -= 16; + } + while(count<0) { + dst[count]= src[2*count]; + count++; + } +} + #if !COMPILE_TEMPLATE_AMD3DNOW static void RENAME(extract_even2)(const uint8_t *src, uint8_t *dst0, uint8_t *dst1, x86_reg count) { @@ -2449,7 +2487,7 @@ static void RENAME(uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, co const int chromWidth = FF_CEIL_RSHIFT(width, 1); for (y=0; y<height; y++) { - RENAME(extract_even)(src+1, ydst, width); + RENAME(extract_odd)(src, ydst, width); if(y&1) { RENAME(extract_even2avg)(src-srcStride, src, udst, vdst, chromWidth); udst+= chromStride; @@ -2475,7 +2513,7 @@ static void RENAME(uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, co const int chromWidth = FF_CEIL_RSHIFT(width, 1); for (y=0; y<height; y++) { - RENAME(extract_even)(src+1, ydst, width); + RENAME(extract_odd)(src, ydst, width); RENAME(extract_even2)(src, udst, vdst, chromWidth); src += srcStride; |