mirror of https://git.ffmpeg.org/ffmpeg.git
more speed
Originally committed as revision 2438 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
This commit is contained in:
Michael Niedermayer
parent
2d83f323d6
commit
73d3355400
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@ -2603,6 +2603,7 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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after watching a black picture for 5 hours*/
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static uint64_t *yHistogram= NULL;
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int black=0, white=255; // blackest black and whitest white in the picture
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int QPCorrecture= 256;
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/* Temporary buffers for handling the last row(s) */
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static uint8_t *tempDst= NULL;
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@ -2693,6 +2694,9 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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packedYOffset= 0;
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}
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if(mode & LEVEL_FIX) QPCorrecture= packedYScale &0xFFFF;
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else QPCorrecture= 256;
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/* copy first row of 8x8 blocks */
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for(x=0; x<width; x+=BLOCK_SIZE)
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blockCopy(dst + x, dstStride, src + x, srcStride, 8, mode & LEVEL_FIX);
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@ -2702,7 +2706,11 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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//1% speedup if these are here instead of the inner loop
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uint8_t *srcBlock= &(src[y*srcStride]);
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uint8_t *dstBlock= &(dst[y*dstStride]);
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#ifdef ARCH_X86
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int *QPptr= isColor ? &QPs[(y>>3)*QPStride] :&QPs[(y>>4)*QPStride];
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int QPDelta= isColor ? 1<<(32-3) : 1<<(32-4);
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int QPFrac= QPDelta;
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#endif
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/* can we mess with a 8x16 block from srcBlock/dstBlock downwards, if not
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than use a temporary buffer */
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if(y+15 >= height)
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@ -2734,16 +2742,26 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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for(x=0; x<width; x+=BLOCK_SIZE)
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{
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const int stride= dstStride;
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int QP;
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if(isColor)
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#ifdef ARCH_X86
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int QP= *QPptr;
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asm volatile(
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"addl %2, %1 \n\t"
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"sbbl %%eax, %%eax \n\t"
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"shll $2, %%eax \n\t"
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"subl %%eax, %0 \n\t"
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: "+r" (QPptr), "+m" (QPFrac)
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: "r" (QPDelta)
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: "%eax"
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);
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#else
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int QP= isColor ?
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QPs[(y>>3)*QPStride + (x>>3)]:
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QPs[(y>>4)*QPStride + (x>>4)];
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#endif
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if(!isColor)
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{
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QP=QPs[(y>>3)*QPStride + (x>>3)];
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}
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else
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{
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QP= QPs[(y>>4)*QPStride + (x>>4)];
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if(mode & LEVEL_FIX) QP= (QP* (packedYScale &0xFFFF))>>8;
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yHistogram[ srcBlock[srcStride*5] ]++;
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QP= (QP* QPCorrecture)>>8;
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yHistogram[ srcBlock[srcStride*4 + 4] ]++;
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}
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#ifdef HAVE_MMX
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asm volatile(
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@ -2761,10 +2779,38 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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#endif
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#ifdef HAVE_MMX2
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/*
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prefetchnta(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);
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prefetchnta(srcBlock + (((x>>3)&3) + 9)*srcStride + 32);
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prefetcht0(dstBlock + (((x>>3)&3) + 5)*dstStride + 32);
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prefetcht0(dstBlock + (((x>>3)&3) + 9)*dstStride + 32);
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*/
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/*
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prefetchnta(srcBlock + (((x>>2)&6) + 5)*srcStride + 32);
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prefetchnta(srcBlock + (((x>>2)&6) + 6)*srcStride + 32);
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prefetcht0(dstBlock + (((x>>2)&6) + 5)*dstStride + 32);
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prefetcht0(dstBlock + (((x>>2)&6) + 6)*dstStride + 32);
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*/
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asm(
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"movl %4, %%eax \n\t"
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"shrl $2, %%eax \n\t"
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"andl $6, %%eax \n\t"
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"addl $5, %%eax \n\t"
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"movl %%eax, %%ebx \n\t"
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"imul %1, %%eax \n\t"
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"imul %3, %%ebx \n\t"
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"prefetchnta 32(%%eax, %0) \n\t"
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"prefetcht0 32(%%ebx, %2) \n\t"
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"addl %1, %%eax \n\t"
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"addl %3, %%ebx \n\t"
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"prefetchnta 32(%%eax, %0) \n\t"
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"prefetcht0 32(%%ebx, %2) \n\t"
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:: "r" (srcBlock), "r" (srcStride), "r" (dstBlock), "r" (dstStride),
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"m" (x)
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: "%eax", "%ebx"
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);
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#elif defined(HAVE_3DNOW)
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//FIXME check if this is faster on an 3dnow chip or if its faster without the prefetch or ...
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/* prefetch(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);
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@ -2603,6 +2603,7 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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after watching a black picture for 5 hours*/
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static uint64_t *yHistogram= NULL;
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int black=0, white=255; // blackest black and whitest white in the picture
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int QPCorrecture= 256;
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/* Temporary buffers for handling the last row(s) */
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static uint8_t *tempDst= NULL;
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@ -2693,6 +2694,9 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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packedYOffset= 0;
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}
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if(mode & LEVEL_FIX) QPCorrecture= packedYScale &0xFFFF;
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else QPCorrecture= 256;
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/* copy first row of 8x8 blocks */
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for(x=0; x<width; x+=BLOCK_SIZE)
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blockCopy(dst + x, dstStride, src + x, srcStride, 8, mode & LEVEL_FIX);
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@ -2702,7 +2706,11 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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//1% speedup if these are here instead of the inner loop
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uint8_t *srcBlock= &(src[y*srcStride]);
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uint8_t *dstBlock= &(dst[y*dstStride]);
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#ifdef ARCH_X86
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int *QPptr= isColor ? &QPs[(y>>3)*QPStride] :&QPs[(y>>4)*QPStride];
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int QPDelta= isColor ? 1<<(32-3) : 1<<(32-4);
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int QPFrac= QPDelta;
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#endif
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/* can we mess with a 8x16 block from srcBlock/dstBlock downwards, if not
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than use a temporary buffer */
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if(y+15 >= height)
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@ -2734,16 +2742,26 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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for(x=0; x<width; x+=BLOCK_SIZE)
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{
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const int stride= dstStride;
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int QP;
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if(isColor)
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#ifdef ARCH_X86
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int QP= *QPptr;
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asm volatile(
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"addl %2, %1 \n\t"
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"sbbl %%eax, %%eax \n\t"
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"shll $2, %%eax \n\t"
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"subl %%eax, %0 \n\t"
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: "+r" (QPptr), "+m" (QPFrac)
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: "r" (QPDelta)
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: "%eax"
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);
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#else
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int QP= isColor ?
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QPs[(y>>3)*QPStride + (x>>3)]:
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QPs[(y>>4)*QPStride + (x>>4)];
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#endif
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if(!isColor)
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{
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QP=QPs[(y>>3)*QPStride + (x>>3)];
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}
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else
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{
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QP= QPs[(y>>4)*QPStride + (x>>4)];
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if(mode & LEVEL_FIX) QP= (QP* (packedYScale &0xFFFF))>>8;
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yHistogram[ srcBlock[srcStride*5] ]++;
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QP= (QP* QPCorrecture)>>8;
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yHistogram[ srcBlock[srcStride*4 + 4] ]++;
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}
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#ifdef HAVE_MMX
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asm volatile(
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@ -2761,10 +2779,38 @@ static void postProcess(uint8_t src[], int srcStride, uint8_t dst[], int dstStri
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#endif
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#ifdef HAVE_MMX2
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/*
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prefetchnta(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);
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prefetchnta(srcBlock + (((x>>3)&3) + 9)*srcStride + 32);
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prefetcht0(dstBlock + (((x>>3)&3) + 5)*dstStride + 32);
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prefetcht0(dstBlock + (((x>>3)&3) + 9)*dstStride + 32);
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*/
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/*
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prefetchnta(srcBlock + (((x>>2)&6) + 5)*srcStride + 32);
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prefetchnta(srcBlock + (((x>>2)&6) + 6)*srcStride + 32);
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prefetcht0(dstBlock + (((x>>2)&6) + 5)*dstStride + 32);
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prefetcht0(dstBlock + (((x>>2)&6) + 6)*dstStride + 32);
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*/
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asm(
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"movl %4, %%eax \n\t"
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"shrl $2, %%eax \n\t"
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"andl $6, %%eax \n\t"
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"addl $5, %%eax \n\t"
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"movl %%eax, %%ebx \n\t"
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"imul %1, %%eax \n\t"
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"imul %3, %%ebx \n\t"
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"prefetchnta 32(%%eax, %0) \n\t"
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"prefetcht0 32(%%ebx, %2) \n\t"
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"addl %1, %%eax \n\t"
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"addl %3, %%ebx \n\t"
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"prefetchnta 32(%%eax, %0) \n\t"
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"prefetcht0 32(%%ebx, %2) \n\t"
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:: "r" (srcBlock), "r" (srcStride), "r" (dstBlock), "r" (dstStride),
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"m" (x)
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: "%eax", "%ebx"
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);
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#elif defined(HAVE_3DNOW)
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//FIXME check if this is faster on an 3dnow chip or if its faster without the prefetch or ...
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/* prefetch(srcBlock + (((x>>3)&3) + 5)*srcStride + 32);
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