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mpv/libvo/osd_template.c
gpoirier 68a1de942c moves invariant code (chiefly MMX register initialization) out of loops as well as eliminating some memory accesses within the inner loop. 
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
2006-06-12 11:14:10 +00:00

468 lines
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C
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// Generic alpha renderers for all YUV modes and RGB depths.
// Optimized by Nick and Michael
// Code from Michael Niedermayer (michaelni@gmx.at) is under GPL
#undef PREFETCH
#undef EMMS
#undef PREFETCHW
#undef PAVGB
#ifdef HAVE_3DNOW
#define PREFETCH "prefetch"
#define PREFETCHW "prefetchw"
#define PAVGB "pavgusb"
#elif defined ( HAVE_MMX2 )
#define PREFETCH "prefetchnta"
#define PREFETCHW "prefetcht0"
#define PAVGB "pavgb"
#else
#define PREFETCH "/nop"
#define PREFETCHW "/nop"
#endif
#ifdef HAVE_3DNOW
/* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
#define EMMS "femms"
#else
#define EMMS "emms"
#endif
static inline void RENAME(vo_draw_alpha_yv12)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
int y;
#if defined(FAST_OSD) && !defined(HAVE_MMX)
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
for(y=0;y<h;y++){
register int x;
#ifdef HAVE_MMX
asm volatile(
PREFETCHW" %0\n\t"
PREFETCH" %1\n\t"
PREFETCH" %2\n\t"
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=8){
asm volatile(
"movl %1, %%eax\n\t"
"orl 4%1, %%eax\n\t"
" jz 1f\n\t"
PREFETCHW" 32%0\n\t"
PREFETCH" 32%1\n\t"
PREFETCH" 32%2\n\t"
"movq %0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y
"psrlw $8, %%mm1\n\t" //0Y0Y0Y0Y
"movq %1, %%mm2\n\t" //srca HGFEDCBA
"paddb %%mm7, %%mm2\n\t"
"movq %%mm2, %%mm3\n\t"
"pand %%mm4, %%mm2\n\t" //0G0E0C0A
"psrlw $8, %%mm3\n\t" //0H0F0D0B
"pmullw %%mm2, %%mm0\n\t"
"pmullw %%mm3, %%mm1\n\t"
"psrlw $8, %%mm0\n\t"
"pand %%mm5, %%mm1\n\t"
"por %%mm1, %%mm0\n\t"
"paddb %2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
"1:\n\t"
:: "m" (dstbase[x]), "m" (srca[x]), "m" (src[x])
: "%eax");
}
#else
for(x=0;x<w;x++){
#ifdef FAST_OSD
if(srca[2*x+0]) dstbase[2*x+0]=src[2*x+0];
if(srca[2*x+1]) dstbase[2*x+1]=src[2*x+1];
#else
if(srca[x]) dstbase[x]=((dstbase[x]*srca[x])>>8)+src[x];
#endif
}
#endif
src+=srcstride;
srca+=srcstride;
dstbase+=dststride;
}
#ifdef HAVE_MMX
asm volatile(EMMS:::"memory");
#endif
return;
}
static inline void RENAME(vo_draw_alpha_yuy2)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
int y;
#if defined(FAST_OSD) && !defined(HAVE_MMX)
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
for(y=0;y<h;y++){
register int x;
#ifdef HAVE_MMX
asm volatile(
PREFETCHW" %0\n\t"
PREFETCH" %1\n\t"
PREFETCH" %2\n\t"
::"m"(*dstbase),"m"(*srca),"m"(*src));
for(x=0;x<w;x+=4){
asm volatile(
"movl %1, %%eax\n\t"
"orl %%eax, %%eax\n\t"
" jz 1f\n\t"
PREFETCHW" 32%0\n\t"
PREFETCH" 32%1\n\t"
PREFETCH" 32%2\n\t"
"movq %0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"pand %%mm4, %%mm0\n\t" //0Y0Y0Y0Y
"movd %%eax, %%mm2\n\t" //srca 0000DCBA
"paddb %%mm6, %%mm2\n\t"
"punpcklbw %%mm7, %%mm2\n\t" //srca 0D0C0B0A
"pmullw %%mm2, %%mm0\n\t"
"psrlw $8, %%mm0\n\t"
"pand %%mm5, %%mm1\n\t" //U0V0U0V0
"movd %2, %%mm2\n\t" //src 0000DCBA
"punpcklbw %%mm7, %%mm2\n\t" //srca 0D0C0B0A
"por %%mm1, %%mm0\n\t"
"paddb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
"1:\n\t"
:: "m" (dstbase[x*2]), "m" (srca[x]), "m" (src[x])
: "%eax");
}
#else
for(x=0;x<w;x++){
#ifdef FAST_OSD
if(srca[2*x+0]) dstbase[4*x+0]=src[2*x+0];
if(srca[2*x+1]) dstbase[4*x+2]=src[2*x+1];
#else
if(srca[x]) {
dstbase[2*x]=((dstbase[2*x]*srca[x])>>8)+src[x];
dstbase[2*x+1]=((((signed)dstbase[2*x+1]-128)*srca[x])>>8)+128;
}
#endif
}
#endif
src+=srcstride;
srca+=srcstride;
dstbase+=dststride;
}
#ifdef HAVE_MMX
asm volatile(EMMS:::"memory");
#endif
return;
}
static inline void RENAME(vo_draw_alpha_uyvy)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
int y;
#if defined(FAST_OSD)
w=w>>1;
#endif
for(y=0;y<h;y++){
register int x;
for(x=0;x<w;x++){
#ifdef FAST_OSD
if(srca[2*x+0]) dstbase[4*x+2]=src[2*x+0];
if(srca[2*x+1]) dstbase[4*x+0]=src[2*x+1];
#else
if(srca[x]) {
dstbase[2*x+1]=((dstbase[2*x+1]*srca[x])>>8)+src[x];
dstbase[2*x]=((((signed)dstbase[2*x]-128)*srca[x])>>8)+128;
}
#endif
}
src+=srcstride;
srca+=srcstride;
dstbase+=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;
#ifdef HAVE_MMX
asm volatile(
"pxor %%mm7, %%mm7\n\t"
"pcmpeqb %%mm6, %%mm6\n\t" // F..F
::);
#endif
for(y=0;y<h;y++){
register unsigned char *dst = dstbase;
register int x;
#if defined(ARCH_X86) || defined(ARCH_X86_64)
#ifdef HAVE_MMX
asm volatile(
PREFETCHW" %0\n\t"
PREFETCH" %1\n\t"
PREFETCH" %2\n\t"
::"m"(*dst),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=2){
if(srca[x] || srca[x+1])
asm volatile(
PREFETCHW" 32%0\n\t"
PREFETCH" 32%1\n\t"
PREFETCH" 32%2\n\t"
"movq %0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"movq %%mm0, %%mm5\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpckhbw %%mm7, %%mm1\n\t"
"movd %1, %%mm2\n\t" // srca ABCD0000
"paddb %%mm6, %%mm2\n\t"
"punpcklbw %%mm2, %%mm2\n\t" // srca AABBCCDD
"punpcklbw %%mm2, %%mm2\n\t" // srca AAAABBBB
"psrlq $8, %%mm2\n\t" // srca AAABBBB0
"movq %%mm2, %%mm3\n\t"
"punpcklbw %%mm7, %%mm2\n\t" // srca 0A0A0A0B
"punpckhbw %%mm7, %%mm3\n\t" // srca 0B0B0B00
"pmullw %%mm2, %%mm0\n\t"
"pmullw %%mm3, %%mm1\n\t"
"psrlw $8, %%mm0\n\t"
"psrlw $8, %%mm1\n\t"
"packuswb %%mm1, %%mm0\n\t"
"movd %2, %%mm2 \n\t" // src ABCD0000
"punpcklbw %%mm2, %%mm2\n\t" // src AABBCCDD
"punpcklbw %%mm2, %%mm2\n\t" // src AAAABBBB
"psrlq $8, %%mm2\n\t" // src AAABBBB0
"paddb %%mm2, %%mm0\n\t"
"pand %4, %%mm5\n\t"
"pand %3, %%mm0\n\t"
"por %%mm0, %%mm5\n\t"
"movq %%mm5, %0\n\t"
:: "m" (dst[0]), "m" (srca[x]), "m" (src[x]), "m"(mask24hl), "m"(mask24lh));
dst += 6;
}
#else /* HAVE_MMX */
for(x=0;x<w;x++){
if(srca[x]){
asm volatile(
"movzbl (%0), %%ecx\n\t"
"movzbl 1(%0), %%eax\n\t"
"imull %1, %%ecx\n\t"
"imull %1, %%eax\n\t"
"addl %2, %%ecx\n\t"
"addl %2, %%eax\n\t"
"movb %%ch, (%0)\n\t"
"movb %%ah, 1(%0)\n\t"
"movzbl 2(%0), %%eax\n\t"
"imull %1, %%eax\n\t"
"addl %2, %%eax\n\t"
"movb %%ah, 2(%0)\n\t"
:
:"D" (dst),
"r" ((unsigned)srca[x]),
"r" (((unsigned)src[x])<<8)
:"%eax", "%ecx"
);
}
dst += 3;
}
#endif /* !HAVE_MMX */
#else /*non x86 arch*/
for(x=0;x<w;x++){
if(srca[x]){
#ifdef FAST_OSD
dst[0]=dst[1]=dst[2]=src[x];
#else
dst[0]=((dst[0]*srca[x])>>8)+src[x];
dst[1]=((dst[1]*srca[x])>>8)+src[x];
dst[2]=((dst[2]*srca[x])>>8)+src[x];
#endif
}
dst+=3; // 24bpp
}
#endif /* arch_x86 */
src+=srcstride;
srca+=srcstride;
dstbase+=dststride;
}
#ifdef HAVE_MMX
asm volatile(EMMS:::"memory");
#endif
return;
}
static inline void RENAME(vo_draw_alpha_rgb32)(int w,int h, unsigned char* src, unsigned char *srca, int srcstride, unsigned char* dstbase,int dststride){
int y;
#ifdef WORDS_BIGENDIAN
dstbase++;
#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++){
register int x;
#if defined(ARCH_X86) || defined(ARCH_X86_64)
#ifdef HAVE_MMX
#ifdef HAVE_3DNOW
asm volatile(
PREFETCHW" %0\n\t"
PREFETCH" %1\n\t"
PREFETCH" %2\n\t"
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=2){
if(srca[x] || srca[x+1])
asm volatile(
PREFETCHW" 32%0\n\t"
PREFETCH" 32%1\n\t"
PREFETCH" 32%2\n\t"
"movq %0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"punpcklbw %%mm7, %%mm0\n\t"
"punpckhbw %%mm7, %%mm1\n\t"
"movd %1, %%mm2\n\t" // srca ABCD0000
"paddb %%mm6, %%mm2\n\t"
"punpcklbw %%mm2, %%mm2\n\t" // srca AABBCCDD
"punpcklbw %%mm2, %%mm2\n\t" // srca AAAABBBB
"movq %%mm2, %%mm3\n\t"
"punpcklbw %%mm7, %%mm2\n\t" // srca 0A0A0A0A
"punpckhbw %%mm7, %%mm3\n\t" // srca 0B0B0B0B
"pmullw %%mm2, %%mm0\n\t"
"pmullw %%mm3, %%mm1\n\t"
"psrlw $8, %%mm0\n\t"
"psrlw $8, %%mm1\n\t"
"packuswb %%mm1, %%mm0\n\t"
"movd %2, %%mm2 \n\t" // src ABCD0000
"punpcklbw %%mm2, %%mm2\n\t" // src AABBCCDD
"punpcklbw %%mm2, %%mm2\n\t" // src AAAABBBB
"paddb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
:: "m" (dstbase[4*x]), "m" (srca[x]), "m" (src[x]));
}
#else //this is faster for intels crap
asm volatile(
PREFETCHW" %0\n\t"
PREFETCH" %1\n\t"
PREFETCH" %2\n\t"
::"m"(*dstbase),"m"(*srca),"m"(*src):"memory");
for(x=0;x<w;x+=4){
asm volatile(
"movl %1, %%eax\n\t"
"orl %%eax, %%eax\n\t"
" jz 1f\n\t"
PREFETCHW" 32%0\n\t"
PREFETCH" 32%1\n\t"
PREFETCH" 32%2\n\t"
"movq %0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"pand %%mm4, %%mm0\n\t" //0R0B0R0B
"psrlw $8, %%mm1\n\t" //0?0G0?0G
"movd %%eax, %%mm2\n\t" //srca 0000DCBA
"paddb "MANGLE(bFF)", %%mm2\n\t"
"punpcklbw %%mm2, %%mm2\n\t" //srca DDCCBBAA
"movq %%mm2, %%mm3\n\t"
"punpcklbw %%mm7, %%mm2\n\t" //srca 0B0B0A0A
"pmullw %%mm2, %%mm0\n\t"
"pmullw %%mm2, %%mm1\n\t"
"psrlw $8, %%mm0\n\t"
"pand %%mm5, %%mm1\n\t"
"por %%mm1, %%mm0\n\t"
"movd %2, %%mm2 \n\t" //src 0000DCBA
"punpcklbw %%mm2, %%mm2\n\t" //src DDCCBBAA
"movq %%mm2, %%mm6\n\t"
"punpcklbw %%mm2, %%mm2\n\t" //src BBBBAAAA
"paddb %%mm2, %%mm0\n\t"
"movq %%mm0, %0\n\t"
"movq 8%0, %%mm0\n\t" // dstbase
"movq %%mm0, %%mm1\n\t"
"pand %%mm4, %%mm0\n\t" //0R0B0R0B
"psrlw $8, %%mm1\n\t" //0?0G0?0G
"punpckhbw %%mm7, %%mm3\n\t" //srca 0D0D0C0C
"pmullw %%mm3, %%mm0\n\t"
"pmullw %%mm3, %%mm1\n\t"
"psrlw $8, %%mm0\n\t"
"pand %%mm5, %%mm1\n\t"
"por %%mm1, %%mm0\n\t"
"punpckhbw %%mm6, %%mm6\n\t" //src DDDDCCCC
"paddb %%mm6, %%mm0\n\t"
"movq %%mm0, 8%0\n\t"
"1:\n\t"
:: "m" (dstbase[4*x]), "m" (srca[x]), "m" (src[x])
: "%eax");
}
#endif
#else /* HAVE_MMX */
for(x=0;x<w;x++){
if(srca[x]){
asm volatile(
"movzbl (%0), %%ecx\n\t"
"movzbl 1(%0), %%eax\n\t"
"movzbl 2(%0), %%edx\n\t"
"imull %1, %%ecx\n\t"
"imull %1, %%eax\n\t"
"imull %1, %%edx\n\t"
"addl %2, %%ecx\n\t"
"addl %2, %%eax\n\t"
"addl %2, %%edx\n\t"
"movb %%ch, (%0)\n\t"
"movb %%ah, 1(%0)\n\t"
"movb %%dh, 2(%0)\n\t"
:
:"r" (&dstbase[4*x]),
"r" ((unsigned)srca[x]),
"r" (((unsigned)src[x])<<8)
:"%eax", "%ecx", "%edx"
);
}
}
#endif /* HAVE_MMX */
#else /*non x86 arch*/
for(x=0;x<w;x++){
if(srca[x]){
#ifdef FAST_OSD
dstbase[4*x+0]=dstbase[4*x+1]=dstbase[4*x+2]=src[x];
#else
dstbase[4*x+0]=((dstbase[4*x+0]*srca[x])>>8)+src[x];
dstbase[4*x+1]=((dstbase[4*x+1]*srca[x])>>8)+src[x];
dstbase[4*x+2]=((dstbase[4*x+2]*srca[x])>>8)+src[x];
#endif
}
}
#endif /* arch_x86 */
src+=srcstride;
srca+=srcstride;
dstbase+=dststride;
}
#ifdef HAVE_MMX
asm volatile(EMMS:::"memory");
#endif
return;
}
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