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Code Issues Releases Activity

added mmx implementation of h264_chroma_mc2

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Originally committed as revision 5200 to svn://svn.ffmpeg.org/ffmpeg/trunk
This commit is contained in:
Loren Merritt 2006-03-22 22:05:00 +00:00
parent 3cdc7eb474
commit fdd3057981
3 changed files with 70 additions and 1 deletions
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65
libavcodec/i386/dsputil_h264_template_mmx.c
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@ -240,7 +240,7 @@ static void H264_CHROMA_MC8_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*
}
}
static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 4*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
DECLARE_ALIGNED_8(uint64_t, AA);
DECLARE_ALIGNED_8(uint64_t, DD);
@ -319,3 +319,66 @@ static void H264_CHROMA_MC4_TMPL(uint8_t *dst/*align 8*/, uint8_t *src/*align 1*
dst += stride;
}
}
#ifdef H264_CHROMA_MC2_TMPL
static void H264_CHROMA_MC2_TMPL(uint8_t *dst/*align 2*/, uint8_t *src/*align 1*/, int stride, int h, int x, int y)
{
int CD=((1<<16)-1)*x*y + 8*y;
int AB=((8<<16)-8)*x + 64 - CD;
int i;
asm volatile(
/* mm5 = {A,B,A,B} */
/* mm6 = {C,D,C,D} */
"movd %0, %%mm5\n\t"
"movd %1, %%mm6\n\t"
"punpckldq %%mm5, %%mm5\n\t"
"punpckldq %%mm6, %%mm6\n\t"
"pxor %%mm7, %%mm7\n\t"
:: "r"(AB), "r"(CD));
asm volatile(
/* mm0 = src[0,1,1,2] */
"movd %0, %%mm0\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"pshufw $0x94, %%mm0, %%mm0\n\t"
:: "m"(src[0]));
for(i=0; i<h; i++) {
asm volatile(
/* mm1 = A * src[0,1] + B * src[1,2] */
"movq %%mm0, %%mm1\n\t"
"pmaddwd %%mm5, %%mm1\n\t"
::);
src += stride;
asm volatile(
/* mm0 = src[0,1,1,2] */
"movd %0, %%mm0\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"pshufw $0x94, %%mm0, %%mm0\n\t"
:: "m"(src[0]));
asm volatile(
/* mm1 += C * src[0,1] + D * src[1,2] */
"movq %%mm0, %%mm2\n\t"
"pmaddwd %%mm6, %%mm2\n\t"
"paddw %%mm2, %%mm1\n\t"
::);
asm volatile(
/* dst[0,1] = pack((mm1 + 32) >> 6) */
"paddw %1, %%mm1\n\t"
"psrlw $6, %%mm1\n\t"
"packssdw %%mm7, %%mm1\n\t"
"packuswb %%mm7, %%mm1\n\t"
/* writes garbage to the right of dst.
* ok because partitions are processed from left to right. */
H264_CHROMA_OP4(%0, %%mm1, %%mm3)
"movd %%mm1, %0\n\t"
: "=m" (dst[0]) : "m" (ff_pw_32) : "eax");
dst += stride;
}
}
#endif

2
libavcodec/i386/dsputil_mmx.c
View File

@ -2848,6 +2848,8 @@ void dsputil_init_mmx(DSPContext* c, AVCodecContext *avctx)
c->avg_h264_chroma_pixels_tab[0]= avg_h264_chroma_mc8_mmx2;
c->avg_h264_chroma_pixels_tab[1]= avg_h264_chroma_mc4_mmx2;
c->avg_h264_chroma_pixels_tab[2]= avg_h264_chroma_mc2_mmx2;
c->put_h264_chroma_pixels_tab[2]= put_h264_chroma_mc2_mmx2;
c->h264_v_loop_filter_luma= h264_v_loop_filter_luma_mmx2;
c->h264_h_loop_filter_luma= h264_h_loop_filter_luma_mmx2;
c->h264_v_loop_filter_chroma= h264_v_loop_filter_chroma_mmx2;

4
libavcodec/i386/h264dsp_mmx.c
View File

@ -1296,12 +1296,14 @@ H264_MC(avg_, 16,mmx2)
#define H264_CHROMA_OP4(S,D,T)
#define H264_CHROMA_MC8_TMPL put_h264_chroma_mc8_mmx
#define H264_CHROMA_MC4_TMPL put_h264_chroma_mc4_mmx
#define H264_CHROMA_MC2_TMPL put_h264_chroma_mc2_mmx2
#define H264_CHROMA_MC8_MV0 put_pixels8_mmx
#include "dsputil_h264_template_mmx.c"
#undef H264_CHROMA_OP
#undef H264_CHROMA_OP4
#undef H264_CHROMA_MC8_TMPL
#undef H264_CHROMA_MC4_TMPL
#undef H264_CHROMA_MC2_TMPL
#undef H264_CHROMA_MC8_MV0
#define H264_CHROMA_OP(S,D) "pavgb " #S ", " #D " \n\t"
@ -1309,12 +1311,14 @@ H264_MC(avg_, 16,mmx2)
"pavgb " #T ", " #D " \n\t"
#define H264_CHROMA_MC8_TMPL avg_h264_chroma_mc8_mmx2
#define H264_CHROMA_MC4_TMPL avg_h264_chroma_mc4_mmx2
#define H264_CHROMA_MC2_TMPL avg_h264_chroma_mc2_mmx2
#define H264_CHROMA_MC8_MV0 avg_pixels8_mmx2
#include "dsputil_h264_template_mmx.c"
#undef H264_CHROMA_OP
#undef H264_CHROMA_OP4
#undef H264_CHROMA_MC8_TMPL
#undef H264_CHROMA_MC4_TMPL
#undef H264_CHROMA_MC2_TMPL
#undef H264_CHROMA_MC8_MV0
#define H264_CHROMA_OP(S,D) "pavgusb " #S ", " #D " \n\t"