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x86/dsputil: port ff_vector_clipf_sse to yasm 

Signed-off-by: James Almer <jamrial@gmail.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
James Almer 2014-05-22 16:28:43 -03:00 committed by Michael Niedermayer
parent fdcb2873e1
commit 1d36defe94
3 changed files with 46 additions and 37 deletions
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44
libavcodec/x86/dsputil.asm
View File

@ -625,3 +625,47 @@ INIT_MMX mmx
PUT_SIGNED_PIXELS_CLAMPED 0
INIT_XMM sse2
PUT_SIGNED_PIXELS_CLAMPED 3
;-----------------------------------------------------
;void ff_vector_clipf(float *dst, const float *src,
; float min, float max, int len)
;-----------------------------------------------------
INIT_XMM sse
%if ARCH_X86_32
cglobal vector_clipf, 5,5,6, dst, src, min, max, len
%else
cglobal vector_clipf, 3,3,6, dst, src, len
%endif
%if WIN64
SWAP 0, 2
SWAP 1, 3
%elif ARCH_X86_32
movss m0, minm
movss m1, maxm
%endif
SPLATD m0
SPLATD m1
shl lenq, 2
add srcq, lenq
add dstq, lenq
neg lenq
.loop:
mova m2, [srcq+lenq+mmsize*0]
mova m3, [srcq+lenq+mmsize*1]
mova m4, [srcq+lenq+mmsize*2]
mova m5, [srcq+lenq+mmsize*3]
maxps m2, m0
maxps m3, m0
maxps m4, m0
maxps m5, m0
minps m2, m1
minps m3, m1
minps m4, m1
minps m5, m1
mova [dstq+lenq+mmsize*0], m2
mova [dstq+lenq+mmsize*1], m3
mova [dstq+lenq+mmsize*2], m4
mova [dstq+lenq+mmsize*3], m5
add lenq, mmsize*4
jl .loop
REP_RET

6
libavcodec/x86/dsputil_init.c
View File

@ -585,12 +585,10 @@ static av_cold void dsputil_init_mmxext(DSPContext *c, AVCodecContext *avctx,
static av_cold void dsputil_init_sse(DSPContext *c, AVCodecContext *avctx,
int cpu_flags, unsigned high_bit_depth)
{
#if HAVE_SSE_INLINE
c->vector_clipf = ff_vector_clipf_sse;
#endif /* HAVE_SSE_INLINE */
#if HAVE_YASM
#if HAVE_SSE_EXTERNAL
c->vector_clipf = ff_vector_clipf_sse;
/* XvMCCreateBlocks() may not allocate 16-byte aligned blocks */
if (CONFIG_XVMC && avctx->hwaccel && avctx->hwaccel->decode_mb)
return;

33
libavcodec/x86/dsputil_mmx.c
View File

@ -506,37 +506,4 @@ void ff_avg_dirac_pixels32_sse2(uint8_t *dst, const uint8_t *src[5], int stride,
#endif
#endif
void ff_vector_clipf_sse(float *dst, const float *src,
float min, float max, int len)
{
x86_reg i = (len - 16) * 4;
__asm__ volatile (
"movss %3, %%xmm4 \n\t"
"movss %4, %%xmm5 \n\t"
"shufps $0, %%xmm4, %%xmm4 \n\t"
"shufps $0, %%xmm5, %%xmm5 \n\t"
"1: \n\t"
"movaps (%2, %0), %%xmm0 \n\t" // 3/1 on intel
"movaps 16(%2, %0), %%xmm1 \n\t"
"movaps 32(%2, %0), %%xmm2 \n\t"
"movaps 48(%2, %0), %%xmm3 \n\t"
"maxps %%xmm4, %%xmm0 \n\t"
"maxps %%xmm4, %%xmm1 \n\t"
"maxps %%xmm4, %%xmm2 \n\t"
"maxps %%xmm4, %%xmm3 \n\t"
"minps %%xmm5, %%xmm0 \n\t"
"minps %%xmm5, %%xmm1 \n\t"
"minps %%xmm5, %%xmm2 \n\t"
"minps %%xmm5, %%xmm3 \n\t"
"movaps %%xmm0, (%1, %0) \n\t"
"movaps %%xmm1, 16(%1, %0) \n\t"
"movaps %%xmm2, 32(%1, %0) \n\t"
"movaps %%xmm3, 48(%1, %0) \n\t"
"sub $64, %0 \n\t"
"jge 1b \n\t"
: "+&r" (i)
: "r" (dst), "r" (src), "m" (min), "m" (max)
: "memory");
}
#endif /* HAVE_INLINE_ASM */