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SSE version of clear_blocks

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Originally committed as revision 19206 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Jason Garrett-Glaser 2009-06-16 17:33:57 +00:00
parent 010f98f96a
commit 73b02e2460
1 changed files with 26 additions and 2 deletions
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28
libavcodec/x86/dsputil_mmx.c
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@ -528,6 +528,28 @@ static void clear_block_sse(DCTELEM *block)
);
}
static void clear_blocks_sse(DCTELEM *blocks)
{\
__asm__ volatile(
"xorps %%xmm0, %%xmm0 \n"
"mov %1, %%"REG_a" \n"
"1: \n"
"movaps %%xmm0, (%0, %%"REG_a") \n"
"movaps %%xmm0, 16(%0, %%"REG_a") \n"
"movaps %%xmm0, 32(%0, %%"REG_a") \n"
"movaps %%xmm0, 48(%0, %%"REG_a") \n"
"movaps %%xmm0, 64(%0, %%"REG_a") \n"
"movaps %%xmm0, 80(%0, %%"REG_a") \n"
"movaps %%xmm0, 96(%0, %%"REG_a") \n"
"movaps %%xmm0, 112(%0, %%"REG_a") \n"
"add $128, %%"REG_a" \n"
" js 1b \n"
: : "r" (((uint8_t *)blocks)+128*6),
"i" (-128*6)
: "%"REG_a
);
}
static void add_bytes_mmx(uint8_t *dst, uint8_t *src, int w){
x86_reg i=0;
__asm__ volatile(
@ -2671,8 +2693,10 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
c->add_pixels_clamped = add_pixels_clamped_mmx;
c->clear_block = clear_block_mmx;
c->clear_blocks = clear_blocks_mmx;
if (mm_flags & FF_MM_SSE)
c->clear_block = clear_block_sse;
if (mm_flags & FF_MM_SSE){
c->clear_block = clear_block_sse;
c->clear_blocks = clear_blocks_sse;
}
#define SET_HPEL_FUNCS(PFX, IDX, SIZE, CPU) \
c->PFX ## _pixels_tab[IDX][0] = PFX ## _pixels ## SIZE ## _ ## CPU; \