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moves invariant code (chiefly MMX register initialization) out of loops as well as eliminating some memory accesses within the inner loop.

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Patch by Zuxy Meng < zuxy POIS meng AH gmail POIS com >
Original thread:
Date: Mon, 12 Jun 2006 00:31:53 -0700 (PDT)
Subject [MPlayer-dev-eng] [PATCH] Loop invariant motion in libvo/osd_template.c


git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@18686 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
gpoirier 2006-06-12 11:14:10 +00:00
parent 2831b49bb5
commit 68a1de942c
1 changed files with 43 additions and 21 deletions
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64
libvo/osd_template.c
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@ -31,6 +31,15 @@ static inline void RENAME(vo_draw_alpha_yv12)(int w,int h, unsigned char* src, u
int y; int y;
#if defined(FAST_OSD) && !defined(HAVE_MMX) #if defined(FAST_OSD) && !defined(HAVE_MMX)
w=w>>1; w=w>>1;
#endif
#ifdef HAVE_MMX
asm volatile(
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm4\n\t"
"movq %%mm5, %%mm7\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::);
#endif #endif
for(y=0;y<h;y++){ for(y=0;y<h;y++){
register int x; register int x;
@ -39,11 +48,6 @@ static inline void RENAME(vo_draw_alpha_yv12)(int w,int h, unsigned char* src, u
PREFETCHW" %0\n\t" PREFETCHW" %0\n\t"
PREFETCH" %1\n\t" PREFETCH" %1\n\t"
PREFETCH" %2\n\t" PREFETCH" %2\n\t"
// "pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm4\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory"); ::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=8){ for(x=0;x<w;x+=8){
asm volatile( asm volatile(
@ -58,7 +62,7 @@ static inline void RENAME(vo_draw_alpha_yv12)(int w,int h, unsigned char* src, u
"pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y "pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y
"psrlw $8, %%mm1\n\t" //0Y0Y0Y0Y "psrlw $8, %%mm1\n\t" //0Y0Y0Y0Y
"movq %1, %%mm2\n\t" //srca HGFEDCBA "movq %1, %%mm2\n\t" //srca HGFEDCBA
"paddb "MANGLE(bFF)", %%mm2\n\t" "paddb %%mm7, %%mm2\n\t"
"movq %%mm2, %%mm3\n\t" "movq %%mm2, %%mm3\n\t"
"pand %%mm4, %%mm2\n\t" //0G0E0C0A "pand %%mm4, %%mm2\n\t" //0G0E0C0A
"psrlw $8, %%mm3\n\t" //0H0F0D0B "psrlw $8, %%mm3\n\t" //0H0F0D0B
@ -97,6 +101,16 @@ static inline void RENAME(vo_draw_alpha_yuy2)(int w,int h, unsigned char* src, u
int y; int y;
#if defined(FAST_OSD) && !defined(HAVE_MMX) #if defined(FAST_OSD) && !defined(HAVE_MMX)
w=w>>1; w=w>>1;
#endif
#ifdef HAVE_MMX
asm volatile(
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm6\n\t"
"movq %%mm5, %%mm4\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::);
#endif #endif
for(y=0;y<h;y++){ for(y=0;y<h;y++){
register int x; register int x;
@ -105,11 +119,6 @@ static inline void RENAME(vo_draw_alpha_yuy2)(int w,int h, unsigned char* src, u
PREFETCHW" %0\n\t" PREFETCHW" %0\n\t"
PREFETCH" %1\n\t" PREFETCH" %1\n\t"
PREFETCH" %2\n\t" PREFETCH" %2\n\t"
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm4\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::"m"(*dstbase),"m"(*srca),"m"(*src)); ::"m"(*dstbase),"m"(*srca),"m"(*src));
for(x=0;x<w;x+=4){ for(x=0;x<w;x+=4){
asm volatile( asm volatile(
@ -123,7 +132,7 @@ static inline void RENAME(vo_draw_alpha_yuy2)(int w,int h, unsigned char* src, u
"movq %%mm0, %%mm1\n\t" "movq %%mm0, %%mm1\n\t"
"pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y "pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y
"movd %%eax, %%mm2\n\t" //srca 0000DCBA "movd %%eax, %%mm2\n\t" //srca 0000DCBA
"paddb "MANGLE(bFF)", %%mm2\n\t" "paddb %%mm6, %%mm2\n\t"
"punpcklbw %%mm7, %%mm2\n\t" //srca 0D0C0B0A "punpcklbw %%mm7, %%mm2\n\t" //srca 0D0C0B0A
"pmullw %%mm2, %%mm0\n\t" "pmullw %%mm2, %%mm0\n\t"
"psrlw $8, %%mm0\n\t" "psrlw $8, %%mm0\n\t"
@ -186,6 +195,12 @@ static inline void RENAME(vo_draw_alpha_uyvy)(int w,int h, unsigned char* src, u
static inline void RENAME(vo_draw_alpha_rgb24)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){ static inline void RENAME(vo_draw_alpha_rgb24)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
int y; int y;
#ifdef HAVE_MMX
asm volatile(
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm6, %%mm6\n\t" // F..F
::);
#endif
for(y=0;y<h;y++){ for(y=0;y<h;y++){
register unsigned char *dst = dstbase; register unsigned char *dst = dstbase;
register int x; register int x;
@ -195,8 +210,6 @@ static inline void RENAME(vo_draw_alpha_rgb24)(int w,int h, unsigned char* src,
PREFETCHW" %0\n\t" PREFETCHW" %0\n\t"
PREFETCH" %1\n\t" PREFETCH" %1\n\t"
PREFETCH" %2\n\t" PREFETCH" %2\n\t"
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm6, %%mm6\n\t" // F..F
::"m"(*dst),"m"(*srca),"m"(*src):"memory"); ::"m"(*dst),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=2){ for(x=0;x<w;x+=2){
if(srca[x] || srca[x+1]) if(srca[x] || srca[x+1])
@ -293,6 +306,22 @@ static inline void RENAME(vo_draw_alpha_rgb32)(int w,int h, unsigned char* src,
#ifdef WORDS_BIGENDIAN #ifdef WORDS_BIGENDIAN
dstbase++; dstbase++;
#endif #endif
#ifdef HAVE_MMX
#ifdef HAVE_3DNOW
asm volatile(
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm6, %%mm6\n\t" // F..F
::);
#else /* HAVE_3DNOW */
asm volatile(
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm4\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::);
#endif /* HAVE_3DNOW */
#endif /* HAVE_MMX */
for(y=0;y<h;y++){ for(y=0;y<h;y++){
register int x; register int x;
#if defined(ARCH_X86) || defined(ARCH_X86_64) #if defined(ARCH_X86) || defined(ARCH_X86_64)
@ -302,8 +331,6 @@ static inline void RENAME(vo_draw_alpha_rgb32)(int w,int h, unsigned char* src,
PREFETCHW" %0\n\t" PREFETCHW" %0\n\t"
PREFETCH" %1\n\t" PREFETCH" %1\n\t"
PREFETCH" %2\n\t" PREFETCH" %2\n\t"
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm6, %%mm6\n\t" // F..F
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory"); ::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=2){ for(x=0;x<w;x+=2){
if(srca[x] || srca[x+1]) if(srca[x] || srca[x+1])
@ -339,11 +366,6 @@ static inline void RENAME(vo_draw_alpha_rgb32)(int w,int h, unsigned char* src,
PREFETCHW" %0\n\t" PREFETCHW" %0\n\t"
PREFETCH" %1\n\t" PREFETCH" %1\n\t"
PREFETCH" %2\n\t" PREFETCH" %2\n\t"
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm5, %%mm5\n\t" // F..F
"movq %%mm5, %%mm4\n\t"
"psllw $8, %%mm5\n\t" //FF00FF00FF00
"psrlw $8, %%mm4\n\t" //00FF00FF00FF
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory"); ::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=4){ for(x=0;x<w;x+=4){
asm volatile( asm volatile(