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avcodec/x86/lossless_videodsp: Port sub_hfyu_median_prediction_mmxext to int16 

Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
This commit is contained in:
Michael Niedermayer 2014-01-22 22:55:49 +01:00
parent fee97f25fa
commit fad49aae28
1 changed files with 48 additions and 0 deletions
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48
libavcodec/x86/lossless_videodsp_init.c
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@ -20,6 +20,8 @@
#include "../lossless_videodsp.h"
#include "libavutil/x86/cpu.h"
#include "libavutil/x86/asm.h"
#include "libavcodec/mathops.h"
void ff_add_int16_mmx(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
void ff_add_int16_sse2(uint16_t *dst, const uint16_t *src, unsigned mask, int w);
@ -29,6 +31,51 @@ int ff_add_hfyu_left_prediction_int16_ssse3(uint16_t *dst, const uint16_t *src,
int ff_add_hfyu_left_prediction_int16_sse4(uint16_t *dst, const uint16_t *src, unsigned mask, int w, int acc);
void ff_add_hfyu_median_prediction_int16_mmxext(uint16_t *dst, const uint16_t *top, const uint16_t *diff, unsigned mask, int w, int *left, int *left_top);
static void sub_hfyu_median_prediction_int16_mmxext(uint16_t *dst, const uint16_t *src1,
const uint16_t *src2, unsigned mask, int w,
int *left, int *left_top)
{
x86_reg i=0;
uint16_t l, lt;
__asm__ volatile(
"movd %5, %%mm7 \n\t"
"pshufw $0, %%mm7, %%mm7 \n\t"
"movq (%1, %0), %%mm0 \n\t" // LT
"psllq $16, %%mm0 \n\t"
"1: \n\t"
"movq (%1, %0), %%mm1 \n\t" // T
"movq -2(%2, %0), %%mm2 \n\t" // L
"movq (%2, %0), %%mm3 \n\t" // X
"movq %%mm2, %%mm4 \n\t" // L
"psubw %%mm0, %%mm2 \n\t"
"paddw %%mm1, %%mm2 \n\t" // L + T - LT
"pand %%mm7, %%mm2 \n\t"
"movq %%mm4, %%mm5 \n\t" // L
"pmaxsw %%mm1, %%mm4 \n\t" // max(T, L)
"pminsw %%mm5, %%mm1 \n\t" // min(T, L)
"pminsw %%mm2, %%mm4 \n\t"
"pmaxsw %%mm1, %%mm4 \n\t"
"psubw %%mm4, %%mm3 \n\t" // dst - pred
"pand %%mm7, %%mm3 \n\t"
"movq %%mm3, (%3, %0) \n\t"
"add $8, %0 \n\t"
"movq -2(%1, %0), %%mm0 \n\t" // LT
"cmp %4, %0 \n\t"
" jb 1b \n\t"
: "+r" (i)
: "r"(src1), "r"(src2), "r"(dst), "r"((x86_reg)2*w), "rm"(mask)
);
l= *left;
lt= *left_top;
dst[0]= src2[0] - mid_pred(l, src1[0], (l + src1[0] - lt)&mask);
*left_top= src1[w-1];
*left = src2[w-1];
}
void ff_llviddsp_init_x86(LLVidDSPContext *c)
{
int cpu_flags = av_get_cpu_flags();
@ -40,6 +87,7 @@ void ff_llviddsp_init_x86(LLVidDSPContext *c)
if (EXTERNAL_MMXEXT(cpu_flags)) {
c->add_hfyu_median_prediction_int16 = ff_add_hfyu_median_prediction_int16_mmxext;
c->sub_hfyu_median_prediction_int16 = sub_hfyu_median_prediction_int16_mmxext;
}
if (EXTERNAL_SSE2(cpu_flags)) {