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yuy2toyv12 in MMX
Originally committed as revision 2705 to svn://svn.mplayerhq.hu/mplayer/trunk/postproc
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4060205ba7
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@ -317,6 +317,60 @@ void yv12toyuy2(uint8_t *ysrc, uint8_t *usrc, uint8_t *vsrc, uint8_t *dst, int n
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void yuy2toyv12(uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int num_pixels)
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{
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#ifdef HAVE_MMX
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asm volatile(
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"xorl %%eax, %%eax \n\t"
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $8, %%mm7 \n\t" // FF,00,FF,00...
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"1: \n\t"
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PREFETCH" 64(%0, %%eax, 4) \n\t"
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"movq (%0, %%eax, 4), %%mm0 \n\t" // YUYV YUYV(0)
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"movq 8(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(4)
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"movq %%mm0, %%mm2 \n\t" // YUYV YUYV(0)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(4)
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"psrlw $8, %%mm0 \n\t" // U0V0 U0V0(0)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(4)
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"pand %%mm7, %%mm2 \n\t" // Y0Y0 Y0Y0(0)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(4)
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"packuswb %%mm1, %%mm0 \n\t" // UVUV UVUV(0)
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"packuswb %%mm3, %%mm2 \n\t" // YYYY YYYY(0)
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MOVNTQ" %%mm2, (%1, %%eax, 2) \n\t"
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"movq 16(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(8)
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"movq 24(%0, %%eax, 4), %%mm2 \n\t" // YUYV YUYV(12)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(8)
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"movq %%mm2, %%mm4 \n\t" // YUYV YUYV(12)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(8)
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"psrlw $8, %%mm2 \n\t" // U0V0 U0V0(12)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(8)
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"pand %%mm7, %%mm4 \n\t" // Y0Y0 Y0Y0(12)
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"packuswb %%mm2, %%mm1 \n\t" // UVUV UVUV(8)
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"packuswb %%mm4, %%mm3 \n\t" // YYYY YYYY(8)
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MOVNTQ" %%mm3, 8(%1, %%eax, 2) \n\t"
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"movq %%mm0, %%mm2 \n\t" // UVUV UVUV(0)
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"movq %%mm1, %%mm3 \n\t" // UVUV UVUV(8)
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"psrlw $8, %%mm0 \n\t" // V0V0 V0V0(0)
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"psrlw $8, %%mm1 \n\t" // V0V0 V0V0(8)
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"pand %%mm7, %%mm2 \n\t" // U0U0 U0U0(0)
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"pand %%mm7, %%mm3 \n\t" // U0U0 U0U0(8)
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"packuswb %%mm1, %%mm0 \n\t" // VVVV VVVV(0)
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"packuswb %%mm3, %%mm2 \n\t" // UUUU UUUU(0)
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MOVNTQ" %%mm0, (%3, %%eax) \n\t"
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MOVNTQ" %%mm2, (%2, %%eax) \n\t"
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"addl $8, %%eax \n\t"
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"cmpl %4, %%eax \n\t"
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" jb 1b \n\t"
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EMMS" \n\t"
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SFENCE
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::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (num_pixels>>1)
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: "memory", "%eax"
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);
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#else
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int i;
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num_pixels>>=1;
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for(i=0; i<num_pixels; i++)
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@ -326,4 +380,5 @@ void yuy2toyv12(uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int n
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ydst[2*i+1] = src[4*i+2];
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vdst[i] = src[4*i+3];
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}
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#endif
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}
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@ -317,6 +317,60 @@ void yv12toyuy2(uint8_t *ysrc, uint8_t *usrc, uint8_t *vsrc, uint8_t *dst, int n
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void yuy2toyv12(uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int num_pixels)
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{
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#ifdef HAVE_MMX
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asm volatile(
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"xorl %%eax, %%eax \n\t"
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $8, %%mm7 \n\t" // FF,00,FF,00...
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"1: \n\t"
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PREFETCH" 64(%0, %%eax, 4) \n\t"
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"movq (%0, %%eax, 4), %%mm0 \n\t" // YUYV YUYV(0)
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"movq 8(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(4)
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"movq %%mm0, %%mm2 \n\t" // YUYV YUYV(0)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(4)
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"psrlw $8, %%mm0 \n\t" // U0V0 U0V0(0)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(4)
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"pand %%mm7, %%mm2 \n\t" // Y0Y0 Y0Y0(0)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(4)
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"packuswb %%mm1, %%mm0 \n\t" // UVUV UVUV(0)
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"packuswb %%mm3, %%mm2 \n\t" // YYYY YYYY(0)
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MOVNTQ" %%mm2, (%1, %%eax, 2) \n\t"
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"movq 16(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(8)
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"movq 24(%0, %%eax, 4), %%mm2 \n\t" // YUYV YUYV(12)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(8)
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"movq %%mm2, %%mm4 \n\t" // YUYV YUYV(12)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(8)
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"psrlw $8, %%mm2 \n\t" // U0V0 U0V0(12)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(8)
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"pand %%mm7, %%mm4 \n\t" // Y0Y0 Y0Y0(12)
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"packuswb %%mm2, %%mm1 \n\t" // UVUV UVUV(8)
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"packuswb %%mm4, %%mm3 \n\t" // YYYY YYYY(8)
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MOVNTQ" %%mm3, 8(%1, %%eax, 2) \n\t"
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"movq %%mm0, %%mm2 \n\t" // UVUV UVUV(0)
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"movq %%mm1, %%mm3 \n\t" // UVUV UVUV(8)
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"psrlw $8, %%mm0 \n\t" // V0V0 V0V0(0)
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"psrlw $8, %%mm1 \n\t" // V0V0 V0V0(8)
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"pand %%mm7, %%mm2 \n\t" // U0U0 U0U0(0)
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"pand %%mm7, %%mm3 \n\t" // U0U0 U0U0(8)
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"packuswb %%mm1, %%mm0 \n\t" // VVVV VVVV(0)
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"packuswb %%mm3, %%mm2 \n\t" // UUUU UUUU(0)
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MOVNTQ" %%mm0, (%3, %%eax) \n\t"
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MOVNTQ" %%mm2, (%2, %%eax) \n\t"
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"addl $8, %%eax \n\t"
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"cmpl %4, %%eax \n\t"
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" jb 1b \n\t"
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EMMS" \n\t"
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SFENCE
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::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (num_pixels>>1)
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: "memory", "%eax"
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);
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#else
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int i;
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num_pixels>>=1;
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for(i=0; i<num_pixels; i++)
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@ -326,4 +380,5 @@ void yuy2toyv12(uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int n
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ydst[2*i+1] = src[4*i+2];
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vdst[i] = src[4*i+3];
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}
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#endif
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}
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