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Diffstat (limited to 'libswscale/x86/swscale_template.c')
-rw-r--r--libswscale/x86/swscale_template.c13
1 files changed, 12 insertions, 1 deletions
diff --git a/libswscale/x86/swscale_template.c b/libswscale/x86/swscale_template.c
index 62265db30f..f2567c1d8b 100644
--- a/libswscale/x86/swscale_template.c
+++ b/libswscale/x86/swscale_template.c
@@ -71,9 +71,20 @@ static void RENAME(yuv2yuvX)(const int16_t *filter, int filterSize,
const uint8_t *dither, int offset)
{
dither_8to16(dither, offset);
- __asm__ volatile(\
+ filterSize--;
+ __asm__ volatile(
+ "movd %0, %%mm1\n\t"
+ "punpcklwd %%mm1, %%mm1\n\t"
+ "punpckldq %%mm1, %%mm1\n\t"
+ "psllw $3, %%mm1\n\t"
+ "paddw %%mm1, %%mm3\n\t"
+ "paddw %%mm1, %%mm4\n\t"
"psraw $4, %%mm3\n\t"
"psraw $4, %%mm4\n\t"
+ ::"m"(filterSize)
+ );
+
+ __asm__ volatile(\
"movq %%mm3, %%mm6\n\t"
"movq %%mm4, %%mm7\n\t"
"movl %3, %%ecx\n\t"