mirror of
https://github.com/mpv-player/mpv
synced 2024-12-26 00:42:57 +00:00
overread in the mmx2 horizontal scaler fixed
2% faster horizontal mmx2 scaler git-svn-id: svn://svn.mplayerhq.hu/mplayer/trunk@5453 b3059339-0415-0410-9bf9-f77b7e298cf2
This commit is contained in:
michael
parent
57c7eef360
commit
91438d4597
@ -117,10 +117,6 @@ untested special converters
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extern int verbose; // defined in mplayer.c
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/*
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NOTES
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known BUGS with known cause (no bugreports please!, but patches are welcome :) )
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horizontal fast_bilinear MMX2 scaler reads 1-7 samples too much (might cause a sig11)
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Special versions: fast Y 1:1 scaling (no interpolation in y direction)
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TODO
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@ -1020,12 +1016,17 @@ static inline void initFilter(int16_t **outFilter, int16_t **filterPos, int *out
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}
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#ifdef ARCH_X86
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static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode)
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static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode, int16_t *filter, int32_t *filterPos, int numSplits)
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{
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uint8_t *fragment;
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int imm8OfPShufW1;
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int imm8OfPShufW2;
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int fragmentLength;
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uint8_t *fragmentA;
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int imm8OfPShufW1A;
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int imm8OfPShufW2A;
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int fragmentLengthA;
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uint8_t *fragmentB;
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int imm8OfPShufW1B;
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int imm8OfPShufW2B;
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int fragmentLengthB;
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int fragmentPos;
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int xpos, i;
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@ -1037,22 +1038,18 @@ static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode)
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"jmp 9f \n\t"
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// Begin
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"0: \n\t"
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"movq (%%esi), %%mm0 \n\t" //FIXME Alignment
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"movq %%mm0, %%mm1 \n\t"
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"psrlq $8, %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm1 \n\t"
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"movq %%mm2, %%mm3 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"addw %%bx, %%cx \n\t" //2*xalpha += (4*lumXInc)&0xFFFF
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"movq (%%edx, %%eax), %%mm3 \n\t"
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"movd (%%ecx, %%esi), %%mm0 \n\t"
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"movd 1(%%ecx, %%esi), %%mm1 \n\t"
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"punpcklbw %%mm7, %%mm1 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"pshufw $0xFF, %%mm1, %%mm1 \n\t"
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"1: \n\t"
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"adcl %%edx, %%esi \n\t" //xx+= (4*lumXInc)>>16 + carry
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"pshufw $0xFF, %%mm0, %%mm0 \n\t"
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"2: \n\t"
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"psrlw $9, %%mm3 \n\t"
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"psubw %%mm1, %%mm0 \n\t"
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"movl 8(%%ebx, %%eax), %%esi \n\t"
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"pmullw %%mm3, %%mm0 \n\t"
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"paddw %%mm6, %%mm2 \n\t" // 2*alpha += xpos&0xFFFF
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"psllw $7, %%mm1 \n\t"
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"paddw %%mm1, %%mm0 \n\t"
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@ -1071,13 +1068,54 @@ static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode)
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"subl %0, %2 \n\t"
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"leal 9b, %3 \n\t"
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"subl %0, %3 \n\t"
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:"=r" (fragment), "=r" (imm8OfPShufW1), "=r" (imm8OfPShufW2),
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"=r" (fragmentLength)
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:"=r" (fragmentA), "=r" (imm8OfPShufW1A), "=r" (imm8OfPShufW2A),
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"=r" (fragmentLengthA)
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);
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asm volatile(
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"jmp 9f \n\t"
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// Begin
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"0: \n\t"
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"movq (%%edx, %%eax), %%mm3 \n\t"
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"movd (%%ecx, %%esi), %%mm0 \n\t"
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"punpcklbw %%mm7, %%mm0 \n\t"
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"pshufw $0xFF, %%mm0, %%mm1 \n\t"
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"1: \n\t"
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"pshufw $0xFF, %%mm0, %%mm0 \n\t"
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"2: \n\t"
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"psubw %%mm1, %%mm0 \n\t"
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"movl 8(%%ebx, %%eax), %%esi \n\t"
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"pmullw %%mm3, %%mm0 \n\t"
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"psllw $7, %%mm1 \n\t"
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"paddw %%mm1, %%mm0 \n\t"
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"movq %%mm0, (%%edi, %%eax) \n\t"
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"addl $8, %%eax \n\t"
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// End
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"9: \n\t"
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// "int $3\n\t"
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"leal 0b, %0 \n\t"
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"leal 1b, %1 \n\t"
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"leal 2b, %2 \n\t"
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"decl %1 \n\t"
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"decl %2 \n\t"
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"subl %0, %1 \n\t"
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"subl %0, %2 \n\t"
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"leal 9b, %3 \n\t"
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"subl %0, %3 \n\t"
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:"=r" (fragmentB), "=r" (imm8OfPShufW1B), "=r" (imm8OfPShufW2B),
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"=r" (fragmentLengthB)
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);
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xpos= 0; //lumXInc/2 - 0x8000; // difference between pixel centers
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for(i=0; i<dstW/8; i++)
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fragmentPos=0;
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for(i=0; i<dstW/numSplits; i++)
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{
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int xx=xpos>>16;
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@ -1088,20 +1126,65 @@ static void initMMX2HScaler(int dstW, int xInc, uint8_t *funnyCode)
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int c=((xpos+xInc*2)>>16) - xx;
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int d=((xpos+xInc*3)>>16) - xx;
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memcpy(funnyCode + fragmentLength*i/4, fragment, fragmentLength);
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filter[i ] = (( xpos & 0xFFFF) ^ 0xFFFF)>>9;
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filter[i+1] = (((xpos+xInc ) & 0xFFFF) ^ 0xFFFF)>>9;
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filter[i+2] = (((xpos+xInc*2) & 0xFFFF) ^ 0xFFFF)>>9;
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filter[i+3] = (((xpos+xInc*3) & 0xFFFF) ^ 0xFFFF)>>9;
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filterPos[i/2]= xx;
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funnyCode[fragmentLength*i/4 + imm8OfPShufW1]=
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funnyCode[fragmentLength*i/4 + imm8OfPShufW2]=
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a | (b<<2) | (c<<4) | (d<<6);
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if(d+1<4)
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{
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int maxShift= 3-(d+1);
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int shift=0;
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// if we dont need to read 8 bytes than dont :), reduces the chance of
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// crossing a cache line
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if(d<3) funnyCode[fragmentLength*i/4 + 1]= 0x6E;
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memcpy(funnyCode + fragmentPos, fragmentB, fragmentLengthB);
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funnyCode[fragmentLength*(i+4)/4]= RET;
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funnyCode[fragmentPos + imm8OfPShufW1B]=
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(a+1) | ((b+1)<<2) | ((c+1)<<4) | ((d+1)<<6);
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funnyCode[fragmentPos + imm8OfPShufW2B]=
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a | (b<<2) | (c<<4) | (d<<6);
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if(i+3>=dstW) shift=maxShift; //avoid overread
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else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //Align
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if(shift && i>=shift)
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{
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funnyCode[fragmentPos + imm8OfPShufW1B]+= 0x55*shift;
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funnyCode[fragmentPos + imm8OfPShufW2B]+= 0x55*shift;
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filterPos[i/2]-=shift;
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}
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fragmentPos+= fragmentLengthB;
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}
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else
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{
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int maxShift= 3-d;
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int shift=0;
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memcpy(funnyCode + fragmentPos, fragmentA, fragmentLengthA);
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funnyCode[fragmentPos + imm8OfPShufW1A]=
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funnyCode[fragmentPos + imm8OfPShufW2A]=
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a | (b<<2) | (c<<4) | (d<<6);
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if(i+4>=dstW) shift=maxShift; //avoid overread
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else if((filterPos[i/2]&3) <= maxShift) shift=filterPos[i/2]&3; //partial align
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if(shift && i>=shift)
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{
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funnyCode[fragmentPos + imm8OfPShufW1A]+= 0x55*shift;
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funnyCode[fragmentPos + imm8OfPShufW2A]+= 0x55*shift;
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filterPos[i/2]-=shift;
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}
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fragmentPos+= fragmentLengthA;
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}
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funnyCode[fragmentPos]= RET;
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}
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xpos+=xInc;
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}
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filterPos[i/2]= xpos>>16; // needed to jump to the next part
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}
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#endif // ARCH_X86
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@ -1565,8 +1648,13 @@ SwsContext *getSwsContext(int srcW, int srcH, int srcFormat, int dstW, int dstH,
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// cant downscale !!!
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if(c->canMMX2BeUsed && (flags & SWS_FAST_BILINEAR))
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{
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initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode);
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initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode);
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c->lumMmx2Filter = (int16_t*)memalign(8, (dstW /8+8)*sizeof(int16_t));
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c->chrMmx2Filter = (int16_t*)memalign(8, (c->chrDstW /4+8)*sizeof(int16_t));
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c->lumMmx2FilterPos= (int32_t*)memalign(8, (dstW /2/8+8)*sizeof(int32_t));
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c->chrMmx2FilterPos= (int32_t*)memalign(8, (c->chrDstW/2/4+8)*sizeof(int32_t));
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initMMX2HScaler( dstW, c->lumXInc, c->funnyYCode , c->lumMmx2Filter, c->lumMmx2FilterPos, 8);
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initMMX2HScaler(c->chrDstW, c->chrXInc, c->funnyUVCode, c->chrMmx2Filter, c->chrMmx2FilterPos, 4);
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}
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#endif
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} // Init Horizontal stuff
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@ -2014,6 +2102,15 @@ void freeSwsContext(SwsContext *c){
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if(c->chrMmxFilter) free(c->chrMmxFilter);
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c->chrMmxFilter = NULL;
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if(c->lumMmx2Filter) free(c->lumMmx2Filter);
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c->lumMmx2Filter=NULL;
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if(c->chrMmx2Filter) free(c->chrMmx2Filter);
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c->chrMmx2Filter=NULL;
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if(c->lumMmx2FilterPos) free(c->lumMmx2FilterPos);
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c->lumMmx2FilterPos=NULL;
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if(c->chrMmx2FilterPos) free(c->chrMmx2FilterPos);
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c->chrMmx2FilterPos=NULL;
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free(c);
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}
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@ -69,6 +69,10 @@ typedef struct SwsContext{
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uint8_t __attribute__((aligned(32))) funnyYCode[10000];
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uint8_t __attribute__((aligned(32))) funnyUVCode[10000];
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int32_t *lumMmx2FilterPos;
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int32_t *chrMmx2FilterPos;
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int16_t *lumMmx2Filter;
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int16_t *chrMmx2Filter;
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int canMMX2BeUsed;
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@ -2238,7 +2238,8 @@ static inline void RENAME(hScale)(int16_t *dst, int dstW, uint8_t *src, int srcW
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static inline void RENAME(hyscale)(uint16_t *dst, int dstWidth, uint8_t *src, int srcW, int xInc,
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int flags, int canMMX2BeUsed, int16_t *hLumFilter,
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int16_t *hLumFilterPos, int hLumFilterSize, void *funnyYCode,
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int srcFormat, uint8_t *formatConvBuffer)
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int srcFormat, uint8_t *formatConvBuffer, int16_t *mmx2Filter,
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int32_t *mmx2FilterPos)
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{
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if(srcFormat==IMGFMT_YUY2)
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{
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@ -2294,35 +2295,21 @@ static inline void RENAME(hyscale)(uint16_t *dst, int dstWidth, uint8_t *src, in
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{
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asm volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"pxor %%mm2, %%mm2 \n\t" // 2*xalpha
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"movd %5, %%mm6 \n\t" // xInc&0xFFFF
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"punpcklwd %%mm6, %%mm6 \n\t"
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"punpcklwd %%mm6, %%mm6 \n\t"
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"movq %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t"
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"paddw %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t"
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"paddw %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t" //0,t,2t,3t t=xInc&0xFF
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"movq %%mm2, %%mm4 \n\t"
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"movd %4, %%mm6 \n\t" //(xInc*4)&0xFFFF
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"punpcklwd %%mm6, %%mm6 \n\t"
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"punpcklwd %%mm6, %%mm6 \n\t"
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"movl %0, %%ecx \n\t"
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"movl %1, %%edi \n\t"
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"movl %2, %%edx \n\t"
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"movl %3, %%ebx \n\t"
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"xorl %%eax, %%eax \n\t" // i
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"movl %0, %%esi \n\t" // src
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"movl %1, %%edi \n\t" // buf1
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"movl %3, %%edx \n\t" // (xInc*4)>>16
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"xorl %%ecx, %%ecx \n\t"
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"xorl %%ebx, %%ebx \n\t"
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"movw %4, %%bx \n\t" // (xInc*4)&0xFFFF
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PREFETCH" (%%ecx) \n\t"
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PREFETCH" 32(%%ecx) \n\t"
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PREFETCH" 64(%%ecx) \n\t"
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#define FUNNY_Y_CODE \
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PREFETCH" 1024(%%esi) \n\t"\
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PREFETCH" 1056(%%esi) \n\t"\
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PREFETCH" 1088(%%esi) \n\t"\
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"call *%6 \n\t"\
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"movq %%mm4, %%mm2 \n\t"\
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"xorl %%ecx, %%ecx \n\t"
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"movl (%%ebx), %%esi \n\t"\
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"call *%4 \n\t"\
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"addl (%%ebx, %%eax), %%ecx \n\t"\
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"addl %%eax, %%edi \n\t"\
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"xorl %%eax, %%eax \n\t"\
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FUNNY_Y_CODE
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FUNNY_Y_CODE
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@ -2333,8 +2320,8 @@ FUNNY_Y_CODE
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FUNNY_Y_CODE
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FUNNY_Y_CODE
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:: "m" (src), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),
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"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF), "m" (funnyYCode)
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:: "m" (src), "m" (dst), "m" (mmx2Filter), "m" (mmx2FilterPos),
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"m" (funnyYCode)
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: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
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);
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for(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--) dst[i] = src[srcW-1]*128;
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@ -2402,7 +2389,8 @@ FUNNY_Y_CODE
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inline static void RENAME(hcscale)(uint16_t *dst, int dstWidth, uint8_t *src1, uint8_t *src2,
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int srcW, int xInc, int flags, int canMMX2BeUsed, int16_t *hChrFilter,
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int16_t *hChrFilterPos, int hChrFilterSize, void *funnyUVCode,
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int srcFormat, uint8_t *formatConvBuffer)
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int srcFormat, uint8_t *formatConvBuffer, int16_t *mmx2Filter,
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int32_t *mmx2FilterPos)
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{
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if(srcFormat==IMGFMT_YUY2)
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{
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@ -2469,65 +2457,44 @@ inline static void RENAME(hcscale)(uint16_t *dst, int dstWidth, uint8_t *src1, u
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if(canMMX2BeUsed)
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{
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asm volatile(
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"pxor %%mm7, %%mm7 \n\t"
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"pxor %%mm2, %%mm2 \n\t" // 2*xalpha
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"movd %5, %%mm6 \n\t" // xInc&0xFFFF
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"punpcklwd %%mm6, %%mm6 \n\t"
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"punpcklwd %%mm6, %%mm6 \n\t"
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"movq %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t"
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"paddw %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t"
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"paddw %%mm6, %%mm2 \n\t"
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"psllq $16, %%mm2 \n\t" //0,t,2t,3t t=xInc&0xFFFF
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"movq %%mm2, %%mm4 \n\t"
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"movd %4, %%mm6 \n\t" //(xInc*4)&0xFFFF
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"punpcklwd %%mm6, %%mm6 \n\t"
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"punpcklwd %%mm6, %%mm6 \n\t"
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"xorl %%eax, %%eax \n\t" // i
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"movl %0, %%esi \n\t" // src
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"movl %1, %%edi \n\t" // buf1
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"movl %3, %%edx \n\t" // (xInc*4)>>16
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"xorl %%ecx, %%ecx \n\t"
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"xorl %%ebx, %%ebx \n\t"
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"movw %4, %%bx \n\t" // (xInc*4)&0xFFFF
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"pxor %%mm7, %%mm7 \n\t"
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"movl %0, %%ecx \n\t"
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"movl %1, %%edi \n\t"
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"movl %2, %%edx \n\t"
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"movl %3, %%ebx \n\t"
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"xorl %%eax, %%eax \n\t" // i
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PREFETCH" (%%ecx) \n\t"
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PREFETCH" 32(%%ecx) \n\t"
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PREFETCH" 64(%%ecx) \n\t"
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#define FUNNYUVCODE \
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PREFETCH" 1024(%%esi) \n\t"\
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PREFETCH" 1056(%%esi) \n\t"\
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PREFETCH" 1088(%%esi) \n\t"\
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"call *%7 \n\t"\
|
||||
"movq %%mm4, %%mm2 \n\t"\
|
||||
"xorl %%ecx, %%ecx \n\t"
|
||||
#define FUNNY_UV_CODE \
|
||||
"movl (%%ebx), %%esi \n\t"\
|
||||
"call *%4 \n\t"\
|
||||
"addl (%%ebx, %%eax), %%ecx \n\t"\
|
||||
"addl %%eax, %%edi \n\t"\
|
||||
"xorl %%eax, %%eax \n\t"\
|
||||
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
"xorl %%eax, %%eax \n\t" // i
|
||||
"movl %5, %%ecx \n\t" // src
|
||||
"movl %1, %%edi \n\t" // buf1
|
||||
"addl $4096, %%edi \n\t"
|
||||
PREFETCH" (%%ecx) \n\t"
|
||||
PREFETCH" 32(%%ecx) \n\t"
|
||||
PREFETCH" 64(%%ecx) \n\t"
|
||||
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
"xorl %%eax, %%eax \n\t" // i
|
||||
"movl %6, %%esi \n\t" // src
|
||||
"movl %1, %%edi \n\t" // buf1
|
||||
"addl $4096, %%edi \n\t"
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
FUNNY_UV_CODE
|
||||
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
FUNNYUVCODE
|
||||
|
||||
:: "m" (src1), "m" (dst), "m" (dstWidth), "m" ((xInc*4)>>16),
|
||||
"m" ((xInc*4)&0xFFFF), "m" (xInc&0xFFFF), "m" (src2), "m" (funnyUVCode)
|
||||
: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
|
||||
);
|
||||
:: "m" (src1), "m" (dst), "m" (mmx2Filter), "m" (mmx2FilterPos),
|
||||
"m" (funnyUVCode), "m" (src2)
|
||||
: "%eax", "%ebx", "%ecx", "%edx", "%esi", "%edi"
|
||||
);
|
||||
for(i=dstWidth-1; (i*xInc)>>16 >=srcW-1; i--)
|
||||
{
|
||||
// printf("%d %d %d\n", dstWidth, i, srcW);
|
||||
@ -2749,7 +2716,8 @@ static void RENAME(swScale)(SwsContext *c, uint8_t* srcParam[], int srcStridePar
|
||||
// printf("%d %d\n", lumBufIndex, vLumBufSize);
|
||||
RENAME(hyscale)(lumPixBuf[ lumBufIndex ], dstW, s, srcW, lumXInc,
|
||||
flags, canMMX2BeUsed, hLumFilter, hLumFilterPos, hLumFilterSize,
|
||||
funnyYCode, c->srcFormat, formatConvBuffer);
|
||||
funnyYCode, c->srcFormat, formatConvBuffer,
|
||||
c->lumMmx2Filter, c->lumMmx2FilterPos);
|
||||
lastInLumBuf++;
|
||||
}
|
||||
while(lastInChrBuf < lastChrSrcY)
|
||||
@ -2763,7 +2731,8 @@ static void RENAME(swScale)(SwsContext *c, uint8_t* srcParam[], int srcStridePar
|
||||
//FIXME replace parameters through context struct (some at least)
|
||||
RENAME(hcscale)(chrPixBuf[ chrBufIndex ], chrDstW, src1, src2, (srcW+1)>>1, chrXInc,
|
||||
flags, canMMX2BeUsed, hChrFilter, hChrFilterPos, hChrFilterSize,
|
||||
funnyUVCode, c->srcFormat, formatConvBuffer);
|
||||
funnyUVCode, c->srcFormat, formatConvBuffer,
|
||||
c->chrMmx2Filter, c->chrMmx2FilterPos);
|
||||
lastInChrBuf++;
|
||||
}
|
||||
//wrap buf index around to stay inside the ring buffer
|
||||
@ -2787,7 +2756,8 @@ static void RENAME(swScale)(SwsContext *c, uint8_t* srcParam[], int srcStridePar
|
||||
ASSERT(lastInLumBuf + 1 - srcSliceY >= 0)
|
||||
RENAME(hyscale)(lumPixBuf[ lumBufIndex ], dstW, s, srcW, lumXInc,
|
||||
flags, canMMX2BeUsed, hLumFilter, hLumFilterPos, hLumFilterSize,
|
||||
funnyYCode, c->srcFormat, formatConvBuffer);
|
||||
funnyYCode, c->srcFormat, formatConvBuffer,
|
||||
c->lumMmx2Filter, c->lumMmx2FilterPos);
|
||||
lastInLumBuf++;
|
||||
}
|
||||
while(lastInChrBuf+1 < ((srcSliceY + srcSliceH)>>1))
|
||||
@ -2800,7 +2770,8 @@ static void RENAME(swScale)(SwsContext *c, uint8_t* srcParam[], int srcStridePar
|
||||
ASSERT(lastInChrBuf + 1 - (srcSliceY>>1) >= 0)
|
||||
RENAME(hcscale)(chrPixBuf[ chrBufIndex ], chrDstW, src1, src2, (srcW+1)>>1, chrXInc,
|
||||
flags, canMMX2BeUsed, hChrFilter, hChrFilterPos, hChrFilterSize,
|
||||
funnyUVCode, c->srcFormat, formatConvBuffer);
|
||||
funnyUVCode, c->srcFormat, formatConvBuffer,
|
||||
c->chrMmx2Filter, c->chrMmx2FilterPos);
|
||||
lastInChrBuf++;
|
||||
}
|
||||
//wrap buf index around to stay inside the ring buffer
|
||||
|
||||
Loading…
Reference in New Issue
Block a user