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mirror of https://github.com/FFmpeg/FFmpeg.git synced 2024-12-23 12:43:46 +02:00

brightness / contrast fix/copy optimizations +2% speedup

Originally committed as revision 2402 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-10-23 01:46:50 +00:00
parent 57d04d3f11
commit 534a602dca
2 changed files with 30 additions and 42 deletions

View File

@ -2478,8 +2478,6 @@ int getPpModeForQuality(int quality){
return modes[quality];
}
//} // extern "C"
/**
* Copies a block from src to dst and fixes the blacklevel
* numLines must be a multiple of 4
@ -2493,8 +2491,6 @@ static inline void blockCopy(uint8_t dst[], int dstStride, uint8_t src[], int sr
{
#ifdef HAVE_MMX
asm volatile(
"movl %4, %%eax \n\t"
"movl %%eax, temp0\n\t"
"pushl %0 \n\t"
"pushl %1 \n\t"
"leal (%2,%2), %%eax \n\t"
@ -2505,47 +2501,45 @@ static inline void blockCopy(uint8_t dst[], int dstStride, uint8_t src[], int sr
#define SCALED_CPY \
"movq (%0), %%mm0 \n\t"\
"movq (%0,%2), %%mm1 \n\t"\
"movq %%mm0, %%mm5 \n\t"\
"movq (%0), %%mm5 \n\t"\
"punpcklbw %%mm4, %%mm0 \n\t"\
"punpckhbw %%mm4, %%mm5 \n\t"\
"psubw %%mm2, %%mm0 \n\t"\
"psubw %%mm2, %%mm5 \n\t"\
"movq (%0,%2), %%mm1 \n\t"\
"psllw $6, %%mm0 \n\t"\
"psllw $6, %%mm5 \n\t"\
"pmulhw %%mm3, %%mm0 \n\t"\
"movq (%0,%2), %%mm6 \n\t"\
"pmulhw %%mm3, %%mm5 \n\t"\
"packuswb %%mm5, %%mm0 \n\t"\
"movq %%mm0, (%1) \n\t"\
"movq %%mm1, %%mm5 \n\t"\
"punpcklbw %%mm4, %%mm1 \n\t"\
"punpckhbw %%mm4, %%mm5 \n\t"\
"punpckhbw %%mm4, %%mm6 \n\t"\
"psubw %%mm2, %%mm1 \n\t"\
"psubw %%mm2, %%mm5 \n\t"\
"psubw %%mm2, %%mm6 \n\t"\
"psllw $6, %%mm1 \n\t"\
"psllw $6, %%mm5 \n\t"\
"psllw $6, %%mm6 \n\t"\
"pmulhw %%mm3, %%mm1 \n\t"\
"pmulhw %%mm3, %%mm5 \n\t"\
"packuswb %%mm5, %%mm1 \n\t"\
"pmulhw %%mm3, %%mm6 \n\t"\
"addl %%eax, %0 \n\t"\
"packuswb %%mm5, %%mm0 \n\t"\
"packuswb %%mm6, %%mm1 \n\t"\
"movq %%mm0, (%1) \n\t"\
"movq %%mm1, (%1, %3) \n\t"\
"1: \n\t"
SCALED_CPY
"addl %%eax, %0 \n\t"
"addl %%ebx, %1 \n\t"
SCALED_CPY
"addl %%eax, %0 \n\t"
"addl %%ebx, %1 \n\t"
"decl temp0 \n\t"
"jnz 1b \n\t"
SCALED_CPY
"addl %%ebx, %1 \n\t"
SCALED_CPY
"popl %1 \n\t"
"popl %0 \n\t"
: : "r" (src),
"r" (dst),
"r" (srcStride),
"r" (dstStride),
"m" (numLines>>2)
"r" (dstStride)
: "%eax", "%ebx"
);
#else

View File

@ -2478,8 +2478,6 @@ int getPpModeForQuality(int quality){
return modes[quality];
}
//} // extern "C"
/**
* Copies a block from src to dst and fixes the blacklevel
* numLines must be a multiple of 4
@ -2493,8 +2491,6 @@ static inline void blockCopy(uint8_t dst[], int dstStride, uint8_t src[], int sr
{
#ifdef HAVE_MMX
asm volatile(
"movl %4, %%eax \n\t"
"movl %%eax, temp0\n\t"
"pushl %0 \n\t"
"pushl %1 \n\t"
"leal (%2,%2), %%eax \n\t"
@ -2505,47 +2501,45 @@ static inline void blockCopy(uint8_t dst[], int dstStride, uint8_t src[], int sr
#define SCALED_CPY \
"movq (%0), %%mm0 \n\t"\
"movq (%0,%2), %%mm1 \n\t"\
"movq %%mm0, %%mm5 \n\t"\
"movq (%0), %%mm5 \n\t"\
"punpcklbw %%mm4, %%mm0 \n\t"\
"punpckhbw %%mm4, %%mm5 \n\t"\
"psubw %%mm2, %%mm0 \n\t"\
"psubw %%mm2, %%mm5 \n\t"\
"movq (%0,%2), %%mm1 \n\t"\
"psllw $6, %%mm0 \n\t"\
"psllw $6, %%mm5 \n\t"\
"pmulhw %%mm3, %%mm0 \n\t"\
"movq (%0,%2), %%mm6 \n\t"\
"pmulhw %%mm3, %%mm5 \n\t"\
"packuswb %%mm5, %%mm0 \n\t"\
"movq %%mm0, (%1) \n\t"\
"movq %%mm1, %%mm5 \n\t"\
"punpcklbw %%mm4, %%mm1 \n\t"\
"punpckhbw %%mm4, %%mm5 \n\t"\
"punpckhbw %%mm4, %%mm6 \n\t"\
"psubw %%mm2, %%mm1 \n\t"\
"psubw %%mm2, %%mm5 \n\t"\
"psubw %%mm2, %%mm6 \n\t"\
"psllw $6, %%mm1 \n\t"\
"psllw $6, %%mm5 \n\t"\
"psllw $6, %%mm6 \n\t"\
"pmulhw %%mm3, %%mm1 \n\t"\
"pmulhw %%mm3, %%mm5 \n\t"\
"packuswb %%mm5, %%mm1 \n\t"\
"pmulhw %%mm3, %%mm6 \n\t"\
"addl %%eax, %0 \n\t"\
"packuswb %%mm5, %%mm0 \n\t"\
"packuswb %%mm6, %%mm1 \n\t"\
"movq %%mm0, (%1) \n\t"\
"movq %%mm1, (%1, %3) \n\t"\
"1: \n\t"
SCALED_CPY
"addl %%eax, %0 \n\t"
"addl %%ebx, %1 \n\t"
SCALED_CPY
"addl %%eax, %0 \n\t"
"addl %%ebx, %1 \n\t"
"decl temp0 \n\t"
"jnz 1b \n\t"
SCALED_CPY
"addl %%ebx, %1 \n\t"
SCALED_CPY
"popl %1 \n\t"
"popl %0 \n\t"
: : "r" (src),
"r" (dst),
"r" (srcStride),
"r" (dstStride),
"m" (numLines>>2)
"r" (dstStride)
: "%eax", "%ebx"
);
#else