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SSE2 optimizations for Monkey's Audio decoder vector functions 

Originally committed as revision 14161 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Kostya Shishkov 2008-07-11 04:48:38 +00:00
parent 3a8322b133
commit d7e1fc4254
1 changed files with 78 additions and 0 deletions
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78
libavcodec/i386/dsputil_mmx.c
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@ -2092,6 +2092,79 @@ extern void ff_snow_inner_add_yblock_sse2(const uint8_t *obmc, const int obmc_st
extern void ff_snow_inner_add_yblock_mmx(const uint8_t *obmc, const int obmc_stride, uint8_t * * block, int b_w, int b_h,
int src_x, int src_y, int src_stride, slice_buffer * sb, int add, uint8_t * dst8);
static void add_int16_sse2(int16_t * v1, int16_t * v2, int order)
{
x86_reg o = -(order << 1);
v1 += order;
v2 += order;
asm volatile(
"1: \n\t"
"movdqu (%1,%2), %%xmm0 \n\t"
"movdqu 16(%1,%2), %%xmm1 \n\t"
"paddw (%0,%2), %%xmm0 \n\t"
"paddw 16(%0,%2), %%xmm1 \n\t"
"movdqa %%xmm0, (%0,%2) \n\t"
"movdqa %%xmm1, 16(%0,%2) \n\t"
"add $32, %2 \n\t"
"js 1b \n\t"
: "+r"(v1), "+r"(v2), "+r"(o)
);
}
static void sub_int16_sse2(int16_t * v1, int16_t * v2, int order)
{
x86_reg o = -(order << 1);
v1 += order;
v2 += order;
asm volatile(
"1: \n\t"
"movdqa (%0,%2), %%xmm0 \n\t"
"movdqa 16(%0,%2), %%xmm2 \n\t"
"movdqu (%1,%2), %%xmm1 \n\t"
"movdqu 16(%1,%2), %%xmm3 \n\t"
"psubw %%xmm1, %%xmm0 \n\t"
"psubw %%xmm3, %%xmm2 \n\t"
"movdqa %%xmm0, (%0,%2) \n\t"
"movdqa %%xmm2, 16(%0,%2) \n\t"
"add $32, %2 \n\t"
"js 1b \n\t"
: "+r"(v1), "+r"(v2), "+r"(o)
);
}
static int32_t scalarproduct_int16_sse2(int16_t * v1, int16_t * v2, int order, int shift)
{
int res = 0;
DECLARE_ALIGNED_16(int64_t, sh);
x86_reg o = -(order << 1);
v1 += order;
v2 += order;
sh = shift;
asm volatile(
"pxor %%xmm7, %%xmm7 \n\t"
"1: \n\t"
"movdqu (%0,%3), %%xmm0 \n\t"
"movdqu 16(%0,%3), %%xmm1 \n\t"
"pmaddwd (%1,%3), %%xmm0 \n\t"
"pmaddwd 16(%1,%3), %%xmm1 \n\t"
"paddd %%xmm0, %%xmm7 \n\t"
"paddd %%xmm1, %%xmm7 \n\t"
"add $32, %3 \n\t"
"js 1b \n\t"
"movhlps %%xmm7, %%xmm2 \n\t"
"paddd %%xmm2, %%xmm7 \n\t"
"psrad %4, %%xmm7 \n\t"
"pshuflw $0x4E, %%xmm7,%%xmm2 \n\t"
"paddd %%xmm2, %%xmm7 \n\t"
"movd %%xmm7, %2 \n\t"
: "+r"(v1), "+r"(v2), "=r"(res), "+r"(o)
: "m"(sh)
);
return res;
}
void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
{
mm_flags = mm_support();
@ -2463,6 +2536,11 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
}
if(mm_flags & MM_3DNOW)
c->vector_fmul_add_add = vector_fmul_add_add_3dnow; // faster than sse
if(mm_flags & MM_SSE2){
c->add_int16 = add_int16_sse2;
c->sub_int16 = sub_int16_sse2;
c->scalarproduct_int16 = scalarproduct_int16_sse2;
}
}
if (ENABLE_ENCODERS)