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Code Issues Releases Activity

faster brightness correcture in MMX2

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Originally committed as revision 3172 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer 2001-11-28 01:26:03 +00:00
parent 06c4804a79
commit 6e9b48406c
1 changed files with 34 additions and 3 deletions
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37
postproc/postprocess_template.c
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@ -2464,7 +2464,30 @@ static inline void RENAME(blockCopy)(uint8_t dst[], int dstStride, uint8_t src[]
"movq packedYOffset, %%mm2 \n\t"
"movq packedYScale, %%mm3 \n\t"
"pxor %%mm4, %%mm4 \n\t"
#ifdef HAVE_MMX2
#define SCALED_CPY(src1, src2, dst1, dst2) \
"movq " #src1 ", %%mm0 \n\t"\
"movq " #src1 ", %%mm5 \n\t"\
"movq " #src2 ", %%mm1 \n\t"\
"movq " #src2 ", %%mm6 \n\t"\
"punpcklbw %%mm0, %%mm0 \n\t"\
"punpckhbw %%mm5, %%mm5 \n\t"\
"punpcklbw %%mm1, %%mm1 \n\t"\
"punpckhbw %%mm6, %%mm6 \n\t"\
"pmulhuw %%mm3, %%mm0 \n\t"\
"pmulhuw %%mm3, %%mm5 \n\t"\
"pmulhuw %%mm3, %%mm1 \n\t"\
"pmulhuw %%mm3, %%mm6 \n\t"\
"psubw %%mm2, %%mm0 \n\t"\
"psubw %%mm2, %%mm5 \n\t"\
"psubw %%mm2, %%mm1 \n\t"\
"psubw %%mm2, %%mm6 \n\t"\
"packuswb %%mm5, %%mm0 \n\t"\
"packuswb %%mm6, %%mm1 \n\t"\
"movq %%mm0, " #dst1 " \n\t"\
"movq %%mm1, " #dst2 " \n\t"\
#else //HAVE_MMX2
#define SCALED_CPY(src1, src2, dst1, dst2) \
"movq " #src1 ", %%mm0 \n\t"\
"movq " #src1 ", %%mm5 \n\t"\
@ -2491,6 +2514,8 @@ static inline void RENAME(blockCopy)(uint8_t dst[], int dstStride, uint8_t src[]
"movq %%mm0, " #dst1 " \n\t"\
"movq %%mm1, " #dst2 " \n\t"\
#endif //!HAVE_MMX2
SCALED_CPY((%0) , (%0, %2) , (%1) , (%1, %3))
SCALED_CPY((%0, %2, 2), (%%eax, %2, 2), (%1, %3, 2), (%%ebx, %3, 2))
SCALED_CPY((%0, %2, 4), (%%eax, %2, 4), (%1, %3, 4), (%%ebx, %3, 4))
@ -2678,13 +2703,19 @@ static void RENAME(postProcess)(uint8_t src[], int srcStride, uint8_t dst[], int
clipped-= yHistogram[white];
}
scale= (double)(maxAllowedY - minAllowedY) / (double)(white-black);
#ifdef HAVE_MMX2
packedYScale= (uint16_t)(scale*256.0 + 0.5);
packedYOffset= (((black*packedYScale)>>8) - minAllowedY) & 0xFFFF;
#else
packedYScale= (uint16_t)(scale*1024.0 + 0.5);
packedYOffset= (black - minAllowedY) & 0xFFFF;
#endif
packedYOffset|= packedYOffset<<32;
packedYOffset|= packedYOffset<<16;
scale= (double)(maxAllowedY - minAllowedY) / (double)(white-black);
packedYScale= (uint16_t)(scale*1024.0 + 0.5);
packedYScale|= packedYScale<<32;
packedYScale|= packedYScale<<16;
}