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提交 ff506a90 编写于 作者: L Loren Merritt
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sse2 & ssse3 versions of dct_quantize. 

core2: mmx2=154 sse2=73 ssse3=66 (cycles)
k8: mmx2=179 sse2=149
p4: mmx2=284 sse2=194

Originally committed as revision 9003 to svn://svn.ffmpeg.org/ffmpeg/trunk
上级 8e380710
隐藏空白更改
内联 并排
Showing with 133 addition and 84 deletion
libavcodec/i386/mpegvideo_mmx.c
浏览文件 @ ff506a90
......@@ -673,6 +673,12 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
);
}
#ifdef HAVE_SSSE3
#define HAVE_SSSE3_BAK
#endif
#undef HAVE_SSSE3
#undef HAVE_SSE2
#undef HAVE_MMX2
#define RENAME(a) a ## _MMX
#define RENAMEl(a) a ## _mmx
......@@ -685,12 +691,22 @@ static void denoise_dct_sse2(MpegEncContext *s, DCTELEM *block){
#define RENAMEl(a) a ## _mmx2
#include "mpegvideo_mmx_template.c"
#define HAVE_SSE2
#undef RENAME
#undef RENAMEl
#define RENAME(a) a ## _SSE2
#define RENAMEl(a) a ## _sse2
#include "mpegvideo_mmx_template.c"
#ifdef HAVE_SSSE3_BAK
#define HAVE_SSSE3
#undef RENAME
#undef RENAMEl
#define RENAME(a) a ## _SSSE3
#define RENAMEl(a) a ## _sse2
#include "mpegvideo_mmx_template.c"
#endif
void MPV_common_init_mmx(MpegEncContext *s)
{
if (mm_flags & MM_MMX) {
......@@ -713,6 +729,11 @@ void MPV_common_init_mmx(MpegEncContext *s)
}
if(dct_algo==FF_DCT_AUTO || dct_algo==FF_DCT_MMX){
#ifdef HAVE_SSSE3
if(mm_flags & MM_SSSE3){
s->dct_quantize= dct_quantize_SSSE3;
} else
#endif
if(mm_flags & MM_SSE2){
s->dct_quantize= dct_quantize_SSE2;
} else if(mm_flags & MM_MMXEXT){
......
libavcodec/i386/mpegvideo_mmx_template.c
浏览文件 @ ff506a90
......@@ -19,33 +19,77 @@
* License along with FFmpeg; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#undef MMREG_WIDTH
#undef MM
#undef MOVQ
#undef SPREADW
#undef PMAXW
#undef PMAX
#ifdef HAVE_MMX2
#define SPREADW(a) "pshufw $0, " #a ", " #a " \n\t"
#define PMAXW(a,b) "pmaxsw " #a ", " #b " \n\t"
#undef SAVE_SIGN
#undef RESTORE_SIGN
#if defined(HAVE_SSE2)
#define MMREG_WIDTH "16"
#define MM "%%xmm"
#define MOVQ "movdqa"
#define SPREADW(a) \
"pshuflw $0, "a", "a" \n\t"\
"punpcklwd "a", "a" \n\t"
#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
#define PMAX(a,b) \
"pshufw $0x0E," #a ", " #b " \n\t"\
"movhlps "a", "b" \n\t"\
PMAXW(b, a)\
"pshufw $0x01," #a ", " #b " \n\t"\
"pshuflw $0x0E, "a", "b" \n\t"\
PMAXW(b, a)\
"pshuflw $0x01, "a", "b" \n\t"\
PMAXW(b, a)
#else
#define MMREG_WIDTH "8"
#define MM "%%mm"
#define MOVQ "movq"
#if defined(HAVE_MMX2)
#define SPREADW(a) "pshufw $0, "a", "a" \n\t"
#define PMAXW(a,b) "pmaxsw "a", "b" \n\t"
#define PMAX(a,b) \
"pshufw $0x0E, "a", "b" \n\t"\
PMAXW(b, a)\
"pshufw $0x01, "a", "b" \n\t"\
PMAXW(b, a)
#else
#define SPREADW(a) \
"punpcklwd " #a ", " #a " \n\t"\
"punpcklwd " #a ", " #a " \n\t"
"punpcklwd "a", "a" \n\t"\
"punpcklwd "a", "a" \n\t"
#define PMAXW(a,b) \
"psubusw " #a ", " #b " \n\t"\
"paddw " #a ", " #b " \n\t"
"psubusw "a", "b" \n\t"\
"paddw "a", "b" \n\t"
#define PMAX(a,b) \
"movq " #a ", " #b " \n\t"\
"psrlq $32, " #a " \n\t"\
"movq "a", "b" \n\t"\
"psrlq $32, "a" \n\t"\
PMAXW(b, a)\
"movq " #a ", " #b " \n\t"\
"psrlq $16, " #a " \n\t"\
"movq "a", "b" \n\t"\
"psrlq $16, "a" \n\t"\
PMAXW(b, a)
#endif
#endif
#ifdef HAVE_SSSE3
#define SAVE_SIGN(a,b) \
"movdqa "b", "a" \n\t"\
"pabsw "b", "b" \n\t"
#define RESTORE_SIGN(a,b) \
"psignw "a", "b" \n\t"
#else
#define SAVE_SIGN(a,b) \
"pxor "a", "a" \n\t"\
"pcmpgtw "b", "a" \n\t" /* block[i] <= 0 ? 0xFF : 0x00 */\
"pxor "a", "b" \n\t"\
"psubw "a", "b" \n\t" /* ABS(block[i]) */
#define RESTORE_SIGN(a,b) \
"pxor "a", "b" \n\t"\
"psubw "a", "b" \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
#endif
static int RENAME(dct_quantize)(MpegEncContext *s,
DCTELEM *block, int n,
......@@ -54,7 +98,7 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
long last_non_zero_p1;
int level=0, q; //=0 is cuz gcc says uninitalized ...
const uint16_t *qmat, *bias;
DECLARE_ALIGNED_8(int16_t, temp_block[64]);
DECLARE_ALIGNED_16(int16_t, temp_block[64]);
assert((7&(int)(&temp_block[0])) == 0); //did gcc align it correctly?
......@@ -106,98 +150,82 @@ static int RENAME(dct_quantize)(MpegEncContext *s,
if((s->out_format == FMT_H263 || s->out_format == FMT_H261) && s->mpeg_quant==0){
asm volatile(
"movd %%"REG_a", %%mm3 \n\t" // last_non_zero_p1
SPREADW(%%mm3)
"pxor %%mm7, %%mm7 \n\t" // 0
"pxor %%mm4, %%mm4 \n\t" // 0
"movq (%2), %%mm5 \n\t" // qmat[0]
"pxor %%mm6, %%mm6 \n\t"
"psubw (%3), %%mm6 \n\t" // -bias[0]
"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
SPREADW(MM"3")
"pxor "MM"7, "MM"7 \n\t" // 0
"pxor "MM"4, "MM"4 \n\t" // 0
MOVQ" (%2), "MM"5 \n\t" // qmat[0]
"pxor "MM"6, "MM"6 \n\t"
"psubw (%3), "MM"6 \n\t" // -bias[0]
"mov $-128, %%"REG_a" \n\t"
ASMALIGN(4)
"1: \n\t"
"pxor %%mm1, %%mm1 \n\t" // 0
"movq (%1, %%"REG_a"), %%mm0 \n\t" // block[i]
"pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
"pxor %%mm1, %%mm0 \n\t"
"psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
"psubusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
"pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
"por %%mm0, %%mm4 \n\t"
"pxor %%mm1, %%mm0 \n\t"
"psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
"movq %%mm0, (%5, %%"REG_a") \n\t"
"pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
"movq (%4, %%"REG_a"), %%mm1 \n\t"
"movq %%mm7, (%1, %%"REG_a") \n\t" // 0
"pandn %%mm1, %%mm0 \n\t"
PMAXW(%%mm0, %%mm3)
"add $8, %%"REG_a" \n\t"
MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
"psubusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16
"por "MM"0, "MM"4 \n\t"
RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
"pandn "MM"1, "MM"0 \n\t"
PMAXW(MM"0", MM"3")
"add $"MMREG_WIDTH", %%"REG_a" \n\t"
" js 1b \n\t"
PMAX(%%mm3, %%mm0)
"movd %%mm3, %%"REG_a" \n\t"
PMAX(MM"3", MM"0")
"movd "MM"3, %%"REG_a" \n\t"
"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
: "+a" (last_non_zero_p1)
: "r" (block+64), "r" (qmat), "r" (bias),
"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
);
// note the asm is split cuz gcc doesnt like that many operands ...
asm volatile(
"movd %1, %%mm1 \n\t" // max_qcoeff
SPREADW(%%mm1)
"psubusw %%mm1, %%mm4 \n\t"
"packuswb %%mm4, %%mm4 \n\t"
"movd %%mm4, %0 \n\t" // *overflow
: "=g" (*overflow)
: "g" (s->max_qcoeff)
);
}else{ // FMT_H263
asm volatile(
"movd %%"REG_a", %%mm3 \n\t" // last_non_zero_p1
SPREADW(%%mm3)
"pxor %%mm7, %%mm7 \n\t" // 0
"pxor %%mm4, %%mm4 \n\t" // 0
"movd %%"REG_a", "MM"3 \n\t" // last_non_zero_p1
SPREADW(MM"3")
"pxor "MM"7, "MM"7 \n\t" // 0
"pxor "MM"4, "MM"4 \n\t" // 0
"mov $-128, %%"REG_a" \n\t"
ASMALIGN(4)
"1: \n\t"
"pxor %%mm1, %%mm1 \n\t" // 0
"movq (%1, %%"REG_a"), %%mm0 \n\t" // block[i]
"pcmpgtw %%mm0, %%mm1 \n\t" // block[i] <= 0 ? 0xFF : 0x00
"pxor %%mm1, %%mm0 \n\t"
"psubw %%mm1, %%mm0 \n\t" // ABS(block[i])
"movq (%3, %%"REG_a"), %%mm6 \n\t" // bias[0]
"paddusw %%mm6, %%mm0 \n\t" // ABS(block[i]) + bias[0]
"movq (%2, %%"REG_a"), %%mm5 \n\t" // qmat[i]
"pmulhw %%mm5, %%mm0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
"por %%mm0, %%mm4 \n\t"
"pxor %%mm1, %%mm0 \n\t"
"psubw %%mm1, %%mm0 \n\t" // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
"movq %%mm0, (%5, %%"REG_a") \n\t"
"pcmpeqw %%mm7, %%mm0 \n\t" // out==0 ? 0xFF : 0x00
"movq (%4, %%"REG_a"), %%mm1 \n\t"
"movq %%mm7, (%1, %%"REG_a") \n\t" // 0
"pandn %%mm1, %%mm0 \n\t"
PMAXW(%%mm0, %%mm3)
"add $8, %%"REG_a" \n\t"
MOVQ" (%1, %%"REG_a"), "MM"0 \n\t" // block[i]
SAVE_SIGN(MM"1", MM"0") // ABS(block[i])
MOVQ" (%3, %%"REG_a"), "MM"6 \n\t" // bias[0]
"paddusw "MM"6, "MM"0 \n\t" // ABS(block[i]) + bias[0]
MOVQ" (%2, %%"REG_a"), "MM"5 \n\t" // qmat[i]
"pmulhw "MM"5, "MM"0 \n\t" // (ABS(block[i])*qmat[0] + bias[0]*qmat[0])>>16
"por "MM"0, "MM"4 \n\t"
RESTORE_SIGN(MM"1", MM"0") // out=((ABS(block[i])*qmat[0] - bias[0]*qmat[0])>>16)*sign(block[i])
MOVQ" "MM"0, (%5, %%"REG_a") \n\t"
"pcmpeqw "MM"7, "MM"0 \n\t" // out==0 ? 0xFF : 0x00
MOVQ" (%4, %%"REG_a"), "MM"1 \n\t"
MOVQ" "MM"7, (%1, %%"REG_a") \n\t" // 0
"pandn "MM"1, "MM"0 \n\t"
PMAXW(MM"0", MM"3")
"add $"MMREG_WIDTH", %%"REG_a" \n\t"
" js 1b \n\t"
PMAX(%%mm3, %%mm0)
"movd %%mm3, %%"REG_a" \n\t"
PMAX(MM"3", MM"0")
"movd "MM"3, %%"REG_a" \n\t"
"movzb %%al, %%"REG_a" \n\t" // last_non_zero_p1
: "+a" (last_non_zero_p1)
: "r" (block+64), "r" (qmat+64), "r" (bias+64),
"r" (inv_zigzag_direct16+64), "r" (temp_block+64)
);
// note the asm is split cuz gcc doesnt like that many operands ...
asm volatile(
"movd %1, %%mm1 \n\t" // max_qcoeff
SPREADW(%%mm1)
"psubusw %%mm1, %%mm4 \n\t"
"packuswb %%mm4, %%mm4 \n\t"
"movd %%mm4, %0 \n\t" // *overflow
}
asm volatile(
"movd %1, "MM"1 \n\t" // max_qcoeff
SPREADW(MM"1")
"psubusw "MM"1, "MM"4 \n\t"
"packuswb "MM"4, "MM"4 \n\t"
#ifdef HAVE_SSE2
"packuswb "MM"4, "MM"4 \n\t"
#endif
"movd "MM"4, %0 \n\t" // *overflow
: "=g" (*overflow)
: "g" (s->max_qcoeff)
);
}
);
if(s->mb_intra) block[0]= level;
else block[0]= temp_block[0];
......
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