FFmpeg/postproc/rgb2rgb_template.c

/*
 *
 *  rgb2rgb.c, Software RGB to RGB convertor
 *  pluralize by Software PAL8 to RGB convertor
 *               Software YUV to YUV convertor
 *               Software YUV to RGB convertor
 *  Written by Nick Kurshev.
 *  palette & yuv & runtime cpu stuff by Michael (michaelni@gmx.at) (under GPL)
 */

#undef PREFETCH
#undef MOVNTQ
#undef EMMS
#undef SFENCE
#undef MMREG_SIZE
#undef PREFETCHW
#undef PAVGB

#ifdef HAVE_SSE2
#define MMREG_SIZE 16
#else
#define MMREG_SIZE 8
#endif

#ifdef HAVE_3DNOW
#define PREFETCH  "prefetch"
#define PREFETCHW "prefetchw"
#define PAVGB	  "pavgusb"
#elif defined ( HAVE_MMX2 )
#define PREFETCH "prefetchnta"
#define PREFETCHW "prefetcht0"
#define PAVGB	  "pavgb"
#else
#define PREFETCH "/nop"
#define PREFETCHW "/nop"
#endif

#ifdef HAVE_3DNOW
/* On K6 femms is faster of emms. On K7 femms is directly mapped on emms. */
#define EMMS     "femms"
#else
#define EMMS     "emms"
#endif

#ifdef HAVE_MMX2
#define MOVNTQ "movntq"
#define SFENCE "sfence"
#else
#define MOVNTQ "movq"
#define SFENCE "/nop"
#endif

static inline void RENAME(rgb24to32)(const uint8_t *src,uint8_t *dst,unsigned src_size)
{
  uint8_t *dest = dst;
  const uint8_t *s = src;
  const uint8_t *end;
#ifdef HAVE_MMX
  const uint8_t *mm_end;
#endif
  end = s + src_size;
#ifdef HAVE_MMX
  __asm __volatile(PREFETCH"	%0"::"m"(*s):"memory");
  mm_end = end - 23;
  __asm __volatile("movq	%0, %%mm7"::"m"(mask32):"memory");
  while(s < mm_end)
  {
    __asm __volatile(
	PREFETCH"	32%1\n\t"
	"movd	%1, %%mm0\n\t"
	"punpckldq 3%1, %%mm0\n\t"
	"movd	6%1, %%mm1\n\t"
	"punpckldq 9%1, %%mm1\n\t"
	"movd	12%1, %%mm2\n\t"
	"punpckldq 15%1, %%mm2\n\t"
	"movd	18%1, %%mm3\n\t"
	"punpckldq 21%1, %%mm3\n\t"
	"pand	%%mm7, %%mm0\n\t"
	"pand	%%mm7, %%mm1\n\t"
	"pand	%%mm7, %%mm2\n\t"
	"pand	%%mm7, %%mm3\n\t"
	MOVNTQ"	%%mm0, %0\n\t"
	MOVNTQ"	%%mm1, 8%0\n\t"
	MOVNTQ"	%%mm2, 16%0\n\t"
	MOVNTQ"	%%mm3, 24%0"
	:"=m"(*dest)
	:"m"(*s)
	:"memory");
    dest += 32;
    s += 24;
  }
  __asm __volatile(SFENCE:::"memory");
  __asm __volatile(EMMS:::"memory");
#endif
  while(s < end)
  {
    *dest++ = *s++;
    *dest++ = *s++;
    *dest++ = *s++;
    *dest++ = 0;
  }
}

static inline void RENAME(rgb32to24)(const uint8_t *src,uint8_t *dst,unsigned src_size)
{
  uint8_t *dest = dst;
  const uint8_t *s = src;
  const uint8_t *end;
#ifdef HAVE_MMX
  const uint8_t *mm_end;
#endif
  end = s + src_size;
#ifdef HAVE_MMX
  __asm __volatile(PREFETCH"	%0"::"m"(*s):"memory");
  mm_end = end - 31;
  while(s < mm_end)
  {
    __asm __volatile(
	PREFETCH"	32%1\n\t"
	"movq	%1, %%mm0\n\t"
	"movq	8%1, %%mm1\n\t"
	"movq	16%1, %%mm4\n\t"
	"movq	24%1, %%mm5\n\t"
	"movq	%%mm0, %%mm2\n\t"
	"movq	%%mm1, %%mm3\n\t"
	"movq	%%mm4, %%mm6\n\t"
	"movq	%%mm5, %%mm7\n\t"
	"psrlq	$8, %%mm2\n\t"
	"psrlq	$8, %%mm3\n\t"
	"psrlq	$8, %%mm6\n\t"
	"psrlq	$8, %%mm7\n\t"
	"pand	%2, %%mm0\n\t"
	"pand	%2, %%mm1\n\t"
	"pand	%2, %%mm4\n\t"
	"pand	%2, %%mm5\n\t"
	"pand	%3, %%mm2\n\t"
	"pand	%3, %%mm3\n\t"
	"pand	%3, %%mm6\n\t"
	"pand	%3, %%mm7\n\t"
	"por	%%mm2, %%mm0\n\t"
	"por	%%mm3, %%mm1\n\t"
	"por	%%mm6, %%mm4\n\t"
	"por	%%mm7, %%mm5\n\t"

	"movq	%%mm1, %%mm2\n\t"
	"movq	%%mm4, %%mm3\n\t"
	"psllq	$48, %%mm2\n\t"
	"psllq	$32, %%mm3\n\t"
	"pand	%4, %%mm2\n\t"
	"pand	%5, %%mm3\n\t"
	"por	%%mm2, %%mm0\n\t"
	"psrlq	$16, %%mm1\n\t"
	"psrlq	$32, %%mm4\n\t"
	"psllq	$16, %%mm5\n\t"
	"por	%%mm3, %%mm1\n\t"
	"pand	%6, %%mm5\n\t"
	"por	%%mm5, %%mm4\n\t"

	MOVNTQ"	%%mm0, %0\n\t"
	MOVNTQ"	%%mm1, 8%0\n\t"
	MOVNTQ"	%%mm4, 16%0"
	:"=m"(*dest)
	:"m"(*s),"m"(mask24l),
	 "m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh)
	:"memory");
    dest += 24;
    s += 32;
  }
  __asm __volatile(SFENCE:::"memory");
  __asm __volatile(EMMS:::"memory");
#endif
  while(s < end)
  {
    *dest++ = *s++;
    *dest++ = *s++;
    *dest++ = *s++;
    s++;
  }
}

/*
 Original by Strepto/Astral
 ported to gcc & bugfixed : A'rpi
 MMX2, 3DNOW optimization by Nick Kurshev
 32bit c version, and and&add trick by Michael Niedermayer
*/
static inline void RENAME(rgb15to16)(const uint8_t *src,uint8_t *dst,unsigned src_size)
{
#ifdef HAVE_MMX
  register int offs=15-src_size;
  register const char* s=src-offs;
  register char* d=dst-offs;
  __asm __volatile(PREFETCH"	%0"::"m"(*(s+offs)));
  __asm __volatile(
	"movq	%0, %%mm4\n\t"
	::"m"(mask15s));
  while(offs<0)
  {
	__asm __volatile(
		PREFETCH"	32%1\n\t"
		"movq	%1, %%mm0\n\t"
		"movq	8%1, %%mm2\n\t"
		"movq	%%mm0, %%mm1\n\t"
		"movq	%%mm2, %%mm3\n\t"
		"pand	%%mm4, %%mm0\n\t"
		"pand	%%mm4, %%mm2\n\t"
		"paddw	%%mm1, %%mm0\n\t"
		"paddw	%%mm3, %%mm2\n\t"
		MOVNTQ"	%%mm0, %0\n\t"
		MOVNTQ"	%%mm2, 8%0"
		:"=m"(*(d+offs))
		:"m"(*(s+offs))
		);
	offs+=16;
  }
  __asm __volatile(SFENCE:::"memory");
  __asm __volatile(EMMS:::"memory");
#else
#if 0
   const uint16_t *s1=( uint16_t * )src;
   uint16_t *d1=( uint16_t * )dst;
   uint16_t *e=((uint8_t *)s1)+src_size;
   while( s1<e ){
     register int x=*( s1++ );
     /* rrrrrggggggbbbbb
        0rrrrrgggggbbbbb
        0111 1111 1110 0000=0x7FE0
        00000000000001 1111=0x001F */
     *( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 );
   }
#else
	const unsigned *s1=( unsigned * )src;
	unsigned *d1=( unsigned * )dst;
	int i;
	int size= src_size>>2;
	for(i=0; i<size; i++)
	{
		register int x= s1[i];
//		d1[i] = x + (x&0x7FE07FE0); //faster but need msbit =0 which might not allways be true
		d1[i] = (x&0x7FFF7FFF) + (x&0x7FE07FE0);

	}
#endif
#endif
}

static inline void RENAME(rgb32to16)(const uint8_t *src, uint8_t *dst, unsigned src_size)
{
#ifdef HAVE_MMX
	const uint8_t *s = src;
	const uint8_t *end,*mm_end;
	uint16_t *d = (uint16_t *)dst;
	end = s + src_size;
	mm_end = end - 15;
	__asm __volatile(PREFETCH"	%0"::"m"(*src):"memory");
	__asm __volatile(
	    "movq	%0, %%mm7\n\t"
	    "movq	%1, %%mm6\n\t"
	    ::"m"(red_16mask),"m"(green_16mask));
	while(s < mm_end)
	{
	    __asm __volatile(
		PREFETCH" 32%1\n\t"
		"movd	%1, %%mm0\n\t"
		"movd	4%1, %%mm3\n\t"
		"punpckldq 8%1, %%mm0\n\t"
		"punpckldq 12%1, %%mm3\n\t"
		"movq	%%mm0, %%mm1\n\t"
		"movq	%%mm0, %%mm2\n\t"
		"movq	%%mm3, %%mm4\n\t"
		"movq	%%mm3, %%mm5\n\t"
		"psrlq	$3, %%mm0\n\t"
		"psrlq	$3, %%mm3\n\t"
		"pand	%2, %%mm0\n\t"
		"pand	%2, %%mm3\n\t"
		"psrlq	$5, %%mm1\n\t"
		"psrlq	$5, %%mm4\n\t"
		"pand	%%mm6, %%mm1\n\t"
		"pand	%%mm6, %%mm4\n\t"
		"psrlq	$8, %%mm2\n\t"
		"psrlq	$8, %%mm5\n\t"
		"pand	%%mm7, %%mm2\n\t"
		"pand	%%mm7, %%mm5\n\t"
		"por	%%mm1, %%mm0\n\t"
		"por	%%mm4, %%mm3\n\t"
		"por	%%mm2, %%mm0\n\t"
		"por	%%mm5, %%mm3\n\t"
		"psllq	$16, %%mm3\n\t"
		"por	%%mm3, %%mm0\n\t"
		MOVNTQ"	%%mm0, %0\n\t"
		:"=m"(*d):"m"(*s),"m"(blue_16mask):"memory");
		d += 4;
		s += 16;
	}
	while(s < end)
	{
		const int b= *s++;
		const int g= *s++;
		const int r= *s++;
                s++;
		*d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
	}
	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");
#else
	unsigned j,i,num_pixels=src_size/4;
	uint16_t *d = (uint16_t *)dst;
	for(i=0,j=0; j<num_pixels; i+=4,j++)
	{
		const int b= src[i+0];
		const int g= src[i+1];
		const int r= src[i+2];

		d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
	}
#endif
}

static inline void RENAME(rgb32to15)(const uint8_t *src, uint8_t *dst, unsigned src_size)
{
#ifdef HAVE_MMX
	const uint8_t *s = src;
	const uint8_t *end,*mm_end;
	uint16_t *d = (uint16_t *)dst;
	end = s + src_size;
	mm_end = end - 15;
	__asm __volatile(PREFETCH"	%0"::"m"(*src):"memory");
	__asm __volatile(
	    "movq	%0, %%mm7\n\t"
	    "movq	%1, %%mm6\n\t"
	    ::"m"(red_15mask),"m"(green_15mask));
	while(s < mm_end)
	{
	    __asm __volatile(
		PREFETCH" 32%1\n\t"
		"movd	%1, %%mm0\n\t"
		"movd	4%1, %%mm3\n\t"
		"punpckldq 8%1, %%mm0\n\t"
		"punpckldq 12%1, %%mm3\n\t"
		"movq	%%mm0, %%mm1\n\t"
		"movq	%%mm0, %%mm2\n\t"
		"movq	%%mm3, %%mm4\n\t"
		"movq	%%mm3, %%mm5\n\t"
		"psrlq	$3, %%mm0\n\t"
		"psrlq	$3, %%mm3\n\t"
		"pand	%2, %%mm0\n\t"
		"pand	%2, %%mm3\n\t"
		"psrlq	$6, %%mm1\n\t"
		"psrlq	$6, %%mm4\n\t"
		"pand	%%mm6, %%mm1\n\t"
		"pand	%%mm6, %%mm4\n\t"
		"psrlq	$9, %%mm2\n\t"
		"psrlq	$9, %%mm5\n\t"
		"pand	%%mm7, %%mm2\n\t"
		"pand	%%mm7, %%mm5\n\t"
		"por	%%mm1, %%mm0\n\t"
		"por	%%mm4, %%mm3\n\t"
		"por	%%mm2, %%mm0\n\t"
		"por	%%mm5, %%mm3\n\t"
		"psllq	$16, %%mm3\n\t"
		"por	%%mm3, %%mm0\n\t"
		MOVNTQ"	%%mm0, %0\n\t"
		:"=m"(*d):"m"(*s),"m"(blue_15mask):"memory");
		d += 4;
		s += 16;
	}
	while(s < end)
	{
		const int b= *s++;
		const int g= *s++;
		const int r= *s++;
		s++;
		*d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
	}
	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");
#else
	unsigned j,i,num_pixels=src_size/4;
	uint16_t *d = (uint16_t *)dst;
	for(i=0,j=0; j<num_pixels; i+=4,j++)
	{
		const int b= src[i+0];
		const int g= src[i+1];
		const int r= src[i+2];

		d[j]= (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
	}
#endif
}

static inline void RENAME(rgb24to16)(const uint8_t *src, uint8_t *dst, unsigned src_size)
{
#ifdef HAVE_MMX
	const uint8_t *s = src;
	const uint8_t *end,*mm_end;
	uint16_t *d = (uint16_t *)dst;
	end = s + src_size;
	mm_end = end - 11;
	__asm __volatile(PREFETCH"	%0"::"m"(*src):"memory");
	__asm __volatile(
	    "movq	%0, %%mm7\n\t"
	    "movq	%1, %%mm6\n\t"
	    ::"m"(red_16mask),"m"(green_16mask));
	while(s < mm_end)
	{
	    __asm __volatile(
		PREFETCH" 32%1\n\t"
		"movd	%1, %%mm0\n\t"
		"movd	3%1, %%mm3\n\t"
		"punpckldq 6%1, %%mm0\n\t"
		"punpckldq 9%1, %%mm3\n\t"
		"movq	%%mm0, %%mm1\n\t"
		"movq	%%mm0, %%mm2\n\t"
		"movq	%%mm3, %%mm4\n\t"
		"movq	%%mm3, %%mm5\n\t"
		"psrlq	$3, %%mm0\n\t"
		"psrlq	$3, %%mm3\n\t"
		"pand	%2, %%mm0\n\t"
		"pand	%2, %%mm3\n\t"
		"psrlq	$5, %%mm1\n\t"
		"psrlq	$5, %%mm4\n\t"
		"pand	%%mm6, %%mm1\n\t"
		"pand	%%mm6, %%mm4\n\t"
		"psrlq	$8, %%mm2\n\t"
		"psrlq	$8, %%mm5\n\t"
		"pand	%%mm7, %%mm2\n\t"
		"pand	%%mm7, %%mm5\n\t"
		"por	%%mm1, %%mm0\n\t"
		"por	%%mm4, %%mm3\n\t"
		"por	%%mm2, %%mm0\n\t"
		"por	%%mm5, %%mm3\n\t"
		"psllq	$16, %%mm3\n\t"
		"por	%%mm3, %%mm0\n\t"
		MOVNTQ"	%%mm0, %0\n\t"
		:"=m"(*d):"m"(*s),"m"(blue_16mask):"memory");
		d += 4;
		s += 12;
	}
	while(s < end)
	{
		const int b= *s++;
		const int g= *s++;
		const int r= *s++;
		*d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
	}
	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");
#else
	unsigned j,i,num_pixels=src_size/3;
	uint16_t *d = (uint16_t *)dst;
	for(i=0,j=0; j<num_pixels; i+=3,j++)
	{
		const int b= src[i+0];
		const int g= src[i+1];
		const int r= src[i+2];

		d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
	}
#endif
}

static inline void RENAME(rgb24to15)(const uint8_t *src, uint8_t *dst, unsigned src_size)
{
#ifdef HAVE_MMX
	const uint8_t *s = src;
	const uint8_t *end,*mm_end;
	uint16_t *d = (uint16_t *)dst;
	end = s + src_size;
	mm_end = end -11;
	__asm __volatile(PREFETCH"	%0"::"m"(*src):"memory");
	__asm __volatile(
	    "movq	%0, %%mm7\n\t"
	    "movq	%1, %%mm6\n\t"
	    ::"m"(red_15mask),"m"(green_15mask));
	while(s < mm_end)
	{
	    __asm __volatile(
		PREFETCH" 32%1\n\t"
		"movd	%1, %%mm0\n\t"
		"movd	3%1, %%mm3\n\t"
		"punpckldq 6%1, %%mm0\n\t"
		"punpckldq 9%1, %%mm3\n\t"
		"movq	%%mm0, %%mm1\n\t"
		"movq	%%mm0, %%mm2\n\t"
		"movq	%%mm3, %%mm4\n\t"
		"movq	%%mm3, %%mm5\n\t"
		"psrlq	$3, %%mm0\n\t"
		"psrlq	$3, %%mm3\n\t"
		"pand	%2, %%mm0\n\t"
		"pand	%2, %%mm3\n\t"
		"psrlq	$6, %%mm1\n\t"
		"psrlq	$6, %%mm4\n\t"
		"pand	%%mm6, %%mm1\n\t"
		"pand	%%mm6, %%mm4\n\t"
		"psrlq	$9, %%mm2\n\t"
		"psrlq	$9, %%mm5\n\t"
		"pand	%%mm7, %%mm2\n\t"
		"pand	%%mm7, %%mm5\n\t"
		"por	%%mm1, %%mm0\n\t"
		"por	%%mm4, %%mm3\n\t"
		"por	%%mm2, %%mm0\n\t"
		"por	%%mm5, %%mm3\n\t"
		"psllq	$16, %%mm3\n\t"
		"por	%%mm3, %%mm0\n\t"
		MOVNTQ"	%%mm0, %0\n\t"
		:"=m"(*d):"m"(*s),"m"(blue_15mask):"memory");
		d += 4;
		s += 12;
	}
	while(s < end)
	{
		const int b= *s++;
		const int g= *s++;
		const int r= *s++;
		*d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
	}
	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");
#else
	unsigned j,i,num_pixels=src_size/3;
	uint16_t *d = (uint16_t *)dst;
	for(i=0,j=0; j<num_pixels; i+=3,j++)
	{
		const int b= src[i+0];
		const int g= src[i+1];
		const int r= src[i+2];

		d[j]= (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
	}
#endif
}

static inline void RENAME(rgb32tobgr32)(const uint8_t *src, uint8_t *dst, unsigned int src_size)
{
#ifdef HAVE_MMX
	asm volatile (
		"xorl %%eax, %%eax		\n\t"
		".balign 16			\n\t"
		"1:				\n\t"
		PREFETCH" 32(%0, %%eax)		\n\t"
		"movq (%0, %%eax), %%mm0	\n\t"
		"movq %%mm0, %%mm1		\n\t"
		"movq %%mm0, %%mm2		\n\t"
		"pslld $16, %%mm0		\n\t"
		"psrld $16, %%mm1		\n\t"
		"pand "MANGLE(mask32r)", %%mm0		\n\t"
		"pand "MANGLE(mask32g)", %%mm2		\n\t"
		"pand "MANGLE(mask32b)", %%mm1		\n\t"
		"por %%mm0, %%mm2		\n\t"
		"por %%mm1, %%mm2		\n\t"
		MOVNTQ" %%mm2, (%1, %%eax)	\n\t"
		"addl $8, %%eax			\n\t"
		"cmpl %2, %%eax			\n\t"
		" jb 1b				\n\t"
		:: "r" (src), "r"(dst), "r" (src_size)
		: "%eax"
	);

	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");
#else
	int i;
	int num_pixels= src_size >> 2;
	for(i=0; i<num_pixels; i++)
	{
		dst[4*i + 0] = src[4*i + 2];
		dst[4*i + 1] = src[4*i + 1];
		dst[4*i + 2] = src[4*i + 0];
	}
#endif
}

static inline void RENAME(rgb24tobgr24)(const uint8_t *src, uint8_t *dst, unsigned int src_size)
{
	int i;
#ifdef HAVE_MMX
	int mmx_size= 23 - src_size;
	asm volatile (
		"movq "MANGLE(mask24r)", %%mm5	\n\t"
		"movq "MANGLE(mask24g)", %%mm6	\n\t"
		"movq "MANGLE(mask24b)", %%mm7	\n\t"
		".balign 16			\n\t"
		"1:				\n\t"
		PREFETCH" 32(%1, %%eax)		\n\t"
		"movq   (%1, %%eax), %%mm0	\n\t" // BGR BGR BG
		"movq   (%1, %%eax), %%mm1	\n\t" // BGR BGR BG
		"movq  2(%1, %%eax), %%mm2	\n\t" // R BGR BGR B
		"psllq $16, %%mm0		\n\t" // 00 BGR BGR
		"pand %%mm5, %%mm0		\n\t"
		"pand %%mm6, %%mm1		\n\t"
		"pand %%mm7, %%mm2		\n\t"
		"por %%mm0, %%mm1		\n\t"
		"por %%mm2, %%mm1		\n\t"                
		"movq  6(%1, %%eax), %%mm0	\n\t" // BGR BGR BG
		MOVNTQ" %%mm1,   (%2, %%eax)	\n\t" // RGB RGB RG
		"movq  8(%1, %%eax), %%mm1	\n\t" // R BGR BGR B
		"movq 10(%1, %%eax), %%mm2	\n\t" // GR BGR BGR
		"pand %%mm7, %%mm0		\n\t"
		"pand %%mm5, %%mm1		\n\t"
		"pand %%mm6, %%mm2		\n\t"
		"por %%mm0, %%mm1		\n\t"
		"por %%mm2, %%mm1		\n\t"                
		"movq 14(%1, %%eax), %%mm0	\n\t" // R BGR BGR B
		MOVNTQ" %%mm1,  8(%2, %%eax)	\n\t" // B RGB RGB R
		"movq 16(%1, %%eax), %%mm1	\n\t" // GR BGR BGR
		"movq 18(%1, %%eax), %%mm2	\n\t" // BGR BGR BG
		"pand %%mm6, %%mm0		\n\t"
		"pand %%mm7, %%mm1		\n\t"
		"pand %%mm5, %%mm2		\n\t"
		"por %%mm0, %%mm1		\n\t"
		"por %%mm2, %%mm1		\n\t"                
		MOVNTQ" %%mm1, 16(%2, %%eax)	\n\t"
		"addl $24, %%eax		\n\t"
		" js 1b				\n\t"
		: "+a" (mmx_size)
		: "r" (src-mmx_size), "r"(dst-mmx_size)
	);

	__asm __volatile(SFENCE:::"memory");
	__asm __volatile(EMMS:::"memory");

	if(mmx_size==23) return; //finihsed, was multiple of 8
	src+= src_size;
	dst+= src_size;
	src_size= 23 - mmx_size;
	src-= src_size;
	dst-= src_size;
#endif
	for(i=0; i<src_size; i+=3)
	{
		register int x;
		x          = src[i + 2];
		dst[i + 1] = src[i + 1];
		dst[i + 2] = src[i + 0];
		dst[i + 0] = x;
	}
}

static inline void RENAME(yuvPlanartoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int dstStride, int vertLumPerChroma)
{
	int y;
	const int chromWidth= width>>1;
	for(y=0; y<height; y++)
	{
#ifdef HAVE_MMX
//FIXME handle 2 lines a once (fewer prefetch, reuse some chrom, but very likely limited by mem anyway)
		asm volatile(
			"xorl %%eax, %%eax		\n\t"
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 32(%1, %%eax, 2)	\n\t"
			PREFETCH" 32(%2, %%eax)		\n\t"
			PREFETCH" 32(%3, %%eax)		\n\t"
			"movq (%2, %%eax), %%mm0	\n\t" // U(0)
			"movq %%mm0, %%mm2		\n\t" // U(0)
			"movq (%3, %%eax), %%mm1	\n\t" // V(0)
			"punpcklbw %%mm1, %%mm0		\n\t" // UVUV UVUV(0)
			"punpckhbw %%mm1, %%mm2		\n\t" // UVUV UVUV(8)

			"movq (%1, %%eax,2), %%mm3	\n\t" // Y(0)
			"movq 8(%1, %%eax,2), %%mm5	\n\t" // Y(8)
			"movq %%mm3, %%mm4		\n\t" // Y(0)
			"movq %%mm5, %%mm6		\n\t" // Y(8)
			"punpcklbw %%mm0, %%mm3		\n\t" // YUYV YUYV(0)
			"punpckhbw %%mm0, %%mm4		\n\t" // YUYV YUYV(4)
			"punpcklbw %%mm2, %%mm5		\n\t" // YUYV YUYV(8)
			"punpckhbw %%mm2, %%mm6		\n\t" // YUYV YUYV(12)

			MOVNTQ" %%mm3, (%0, %%eax, 4)	\n\t"
			MOVNTQ" %%mm4, 8(%0, %%eax, 4)	\n\t"
			MOVNTQ" %%mm5, 16(%0, %%eax, 4)	\n\t"
			MOVNTQ" %%mm6, 24(%0, %%eax, 4)	\n\t"

			"addl $8, %%eax			\n\t"
			"cmpl %4, %%eax			\n\t"
			" jb 1b				\n\t"
			::"r"(dst), "r"(ysrc), "r"(usrc), "r"(vsrc), "r" (chromWidth)
			: "%eax"
		);
#else
		int i;
		for(i=0; i<chromWidth; i++)
		{
			dst[4*i+0] = ysrc[2*i+0];
			dst[4*i+1] = usrc[i];
			dst[4*i+2] = ysrc[2*i+1];
			dst[4*i+3] = vsrc[i];
		}
#endif
		if((y&(vertLumPerChroma-1))==(vertLumPerChroma-1) )
		{
			usrc += chromStride;
			vsrc += chromStride;
		}
		ysrc += lumStride;
		dst += dstStride;
	}
#ifdef HAVE_MMX
asm(    EMMS" \n\t"
        SFENCE" \n\t"
        :::"memory");
#endif
}

/**
 *
 * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 * problem for anyone then tell me, and ill fix it)
 */
static inline void RENAME(yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int dstStride)
{
	//FIXME interpolate chroma
	RENAME(yuvPlanartoyuy2)(ysrc, usrc, vsrc, dst, width, height, lumStride, chromStride, dstStride, 2);
}

/**
 *
 * width should be a multiple of 16
 */
static inline void RENAME(yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int dstStride)
{
	RENAME(yuvPlanartoyuy2)(ysrc, usrc, vsrc, dst, width, height, lumStride, chromStride, dstStride, 1);
}

/**
 *
 * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 * problem for anyone then tell me, and ill fix it)
 */
static inline void RENAME(yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
{
	int y;
	const int chromWidth= width>>1;
	for(y=0; y<height; y+=2)
	{
#ifdef HAVE_MMX
		asm volatile(
			"xorl %%eax, %%eax		\n\t"
			"pcmpeqw %%mm7, %%mm7		\n\t"
			"psrlw $8, %%mm7		\n\t" // FF,00,FF,00...
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 64(%0, %%eax, 4)	\n\t"
			"movq (%0, %%eax, 4), %%mm0	\n\t" // YUYV YUYV(0)
			"movq 8(%0, %%eax, 4), %%mm1	\n\t" // YUYV YUYV(4)
			"movq %%mm0, %%mm2		\n\t" // YUYV YUYV(0)
			"movq %%mm1, %%mm3		\n\t" // YUYV YUYV(4)
			"psrlw $8, %%mm0		\n\t" // U0V0 U0V0(0)
			"psrlw $8, %%mm1		\n\t" // U0V0 U0V0(4)
			"pand %%mm7, %%mm2		\n\t" // Y0Y0 Y0Y0(0)
			"pand %%mm7, %%mm3		\n\t" // Y0Y0 Y0Y0(4)
			"packuswb %%mm1, %%mm0		\n\t" // UVUV UVUV(0)
			"packuswb %%mm3, %%mm2		\n\t" // YYYY YYYY(0)

			MOVNTQ" %%mm2, (%1, %%eax, 2)	\n\t"

			"movq 16(%0, %%eax, 4), %%mm1	\n\t" // YUYV YUYV(8)
			"movq 24(%0, %%eax, 4), %%mm2	\n\t" // YUYV YUYV(12)
			"movq %%mm1, %%mm3		\n\t" // YUYV YUYV(8)
			"movq %%mm2, %%mm4		\n\t" // YUYV YUYV(12)
			"psrlw $8, %%mm1		\n\t" // U0V0 U0V0(8)
			"psrlw $8, %%mm2		\n\t" // U0V0 U0V0(12)
			"pand %%mm7, %%mm3		\n\t" // Y0Y0 Y0Y0(8)
			"pand %%mm7, %%mm4		\n\t" // Y0Y0 Y0Y0(12)
			"packuswb %%mm2, %%mm1		\n\t" // UVUV UVUV(8)
			"packuswb %%mm4, %%mm3		\n\t" // YYYY YYYY(8)

			MOVNTQ" %%mm3, 8(%1, %%eax, 2)	\n\t"

			"movq %%mm0, %%mm2		\n\t" // UVUV UVUV(0)
			"movq %%mm1, %%mm3		\n\t" // UVUV UVUV(8)
			"psrlw $8, %%mm0		\n\t" // V0V0 V0V0(0)
			"psrlw $8, %%mm1		\n\t" // V0V0 V0V0(8)
			"pand %%mm7, %%mm2		\n\t" // U0U0 U0U0(0)
			"pand %%mm7, %%mm3		\n\t" // U0U0 U0U0(8)
			"packuswb %%mm1, %%mm0		\n\t" // VVVV VVVV(0)
			"packuswb %%mm3, %%mm2		\n\t" // UUUU UUUU(0)

			MOVNTQ" %%mm0, (%3, %%eax)	\n\t"
			MOVNTQ" %%mm2, (%2, %%eax)	\n\t"

			"addl $8, %%eax			\n\t"
			"cmpl %4, %%eax			\n\t"
			" jb 1b				\n\t"
			::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
			: "memory", "%eax"
		);

		ydst += lumStride;
		src  += srcStride;

		asm volatile(
			"xorl %%eax, %%eax		\n\t"
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 64(%0, %%eax, 4)	\n\t"
			"movq (%0, %%eax, 4), %%mm0	\n\t" // YUYV YUYV(0)
			"movq 8(%0, %%eax, 4), %%mm1	\n\t" // YUYV YUYV(4)
			"movq 16(%0, %%eax, 4), %%mm2	\n\t" // YUYV YUYV(8)
			"movq 24(%0, %%eax, 4), %%mm3	\n\t" // YUYV YUYV(12)
			"pand %%mm7, %%mm0		\n\t" // Y0Y0 Y0Y0(0)
			"pand %%mm7, %%mm1		\n\t" // Y0Y0 Y0Y0(4)
			"pand %%mm7, %%mm2		\n\t" // Y0Y0 Y0Y0(8)
			"pand %%mm7, %%mm3		\n\t" // Y0Y0 Y0Y0(12)
			"packuswb %%mm1, %%mm0		\n\t" // YYYY YYYY(0)
			"packuswb %%mm3, %%mm2		\n\t" // YYYY YYYY(8)

			MOVNTQ" %%mm0, (%1, %%eax, 2)	\n\t"
			MOVNTQ" %%mm2, 8(%1, %%eax, 2)	\n\t"

			"addl $8, %%eax			\n\t"
			"cmpl %4, %%eax			\n\t"
			" jb 1b				\n\t"

			::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
			: "memory", "%eax"
		);
#else
		int i;
		for(i=0; i<chromWidth; i++)
		{
			ydst[2*i+0] 	= src[4*i+0];
			udst[i] 	= src[4*i+1];
			ydst[2*i+1] 	= src[4*i+2];
			vdst[i] 	= src[4*i+3];
		}
		ydst += lumStride;
		src  += srcStride;

		for(i=0; i<chromWidth; i++)
		{
			ydst[2*i+0] 	= src[4*i+0];
			ydst[2*i+1] 	= src[4*i+2];
		}
#endif
		udst += chromStride;
		vdst += chromStride;
		ydst += lumStride;
		src  += srcStride;
	}
#ifdef HAVE_MMX
asm volatile(   EMMS" \n\t"
        	SFENCE" \n\t"
        	:::"memory");
#endif
}

/**
 *
 * height should be a multiple of 2 and width should be a multiple of 16 (if this is a
 * problem for anyone then tell me, and ill fix it)
 * chrominance data is only taken from every secound line others are ignored FIXME write HQ version
 */
static inline void RENAME(uyvytoyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
{
	int y;
	const int chromWidth= width>>1;
	for(y=0; y<height; y+=2)
	{
#ifdef HAVE_MMX
		asm volatile(
			"xorl %%eax, %%eax		\n\t"
			"pcmpeqw %%mm7, %%mm7		\n\t"
			"psrlw $8, %%mm7		\n\t" // FF,00,FF,00...
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 64(%0, %%eax, 4)	\n\t"
			"movq (%0, %%eax, 4), %%mm0	\n\t" // UYVY UYVY(0)
			"movq 8(%0, %%eax, 4), %%mm1	\n\t" // UYVY UYVY(4)
			"movq %%mm0, %%mm2		\n\t" // UYVY UYVY(0)
			"movq %%mm1, %%mm3		\n\t" // UYVY UYVY(4)
			"pand %%mm7, %%mm0		\n\t" // U0V0 U0V0(0)
			"pand %%mm7, %%mm1		\n\t" // U0V0 U0V0(4)
			"psrlw $8, %%mm2		\n\t" // Y0Y0 Y0Y0(0)
			"psrlw $8, %%mm3		\n\t" // Y0Y0 Y0Y0(4)
			"packuswb %%mm1, %%mm0		\n\t" // UVUV UVUV(0)
			"packuswb %%mm3, %%mm2		\n\t" // YYYY YYYY(0)

			MOVNTQ" %%mm2, (%1, %%eax, 2)	\n\t"

			"movq 16(%0, %%eax, 4), %%mm1	\n\t" // UYVY UYVY(8)
			"movq 24(%0, %%eax, 4), %%mm2	\n\t" // UYVY UYVY(12)
			"movq %%mm1, %%mm3		\n\t" // UYVY UYVY(8)
			"movq %%mm2, %%mm4		\n\t" // UYVY UYVY(12)
			"pand %%mm7, %%mm1		\n\t" // U0V0 U0V0(8)
			"pand %%mm7, %%mm2		\n\t" // U0V0 U0V0(12)
			"psrlw $8, %%mm3		\n\t" // Y0Y0 Y0Y0(8)
			"psrlw $8, %%mm4		\n\t" // Y0Y0 Y0Y0(12)
			"packuswb %%mm2, %%mm1		\n\t" // UVUV UVUV(8)
			"packuswb %%mm4, %%mm3		\n\t" // YYYY YYYY(8)

			MOVNTQ" %%mm3, 8(%1, %%eax, 2)	\n\t"

			"movq %%mm0, %%mm2		\n\t" // UVUV UVUV(0)
			"movq %%mm1, %%mm3		\n\t" // UVUV UVUV(8)
			"psrlw $8, %%mm0		\n\t" // V0V0 V0V0(0)
			"psrlw $8, %%mm1		\n\t" // V0V0 V0V0(8)
			"pand %%mm7, %%mm2		\n\t" // U0U0 U0U0(0)
			"pand %%mm7, %%mm3		\n\t" // U0U0 U0U0(8)
			"packuswb %%mm1, %%mm0		\n\t" // VVVV VVVV(0)
			"packuswb %%mm3, %%mm2		\n\t" // UUUU UUUU(0)

			MOVNTQ" %%mm0, (%3, %%eax)	\n\t"
			MOVNTQ" %%mm2, (%2, %%eax)	\n\t"

			"addl $8, %%eax			\n\t"
			"cmpl %4, %%eax			\n\t"
			" jb 1b				\n\t"
			::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
			: "memory", "%eax"
		);

		ydst += lumStride;
		src  += srcStride;

		asm volatile(
			"xorl %%eax, %%eax		\n\t"
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 64(%0, %%eax, 4)	\n\t"
			"movq (%0, %%eax, 4), %%mm0	\n\t" // YUYV YUYV(0)
			"movq 8(%0, %%eax, 4), %%mm1	\n\t" // YUYV YUYV(4)
			"movq 16(%0, %%eax, 4), %%mm2	\n\t" // YUYV YUYV(8)
			"movq 24(%0, %%eax, 4), %%mm3	\n\t" // YUYV YUYV(12)
			"psrlw $8, %%mm0		\n\t" // Y0Y0 Y0Y0(0)
			"psrlw $8, %%mm1		\n\t" // Y0Y0 Y0Y0(4)
			"psrlw $8, %%mm2		\n\t" // Y0Y0 Y0Y0(8)
			"psrlw $8, %%mm3		\n\t" // Y0Y0 Y0Y0(12)
			"packuswb %%mm1, %%mm0		\n\t" // YYYY YYYY(0)
			"packuswb %%mm3, %%mm2		\n\t" // YYYY YYYY(8)

			MOVNTQ" %%mm0, (%1, %%eax, 2)	\n\t"
			MOVNTQ" %%mm2, 8(%1, %%eax, 2)	\n\t"

			"addl $8, %%eax			\n\t"
			"cmpl %4, %%eax			\n\t"
			" jb 1b				\n\t"

			::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (chromWidth)
			: "memory", "%eax"
		);
#else
		int i;
		for(i=0; i<chromWidth; i++)
		{
			udst[i] 	= src[4*i+0];
			ydst[2*i+0] 	= src[4*i+1];
			vdst[i] 	= src[4*i+2];
			ydst[2*i+1] 	= src[4*i+3];
		}
		ydst += lumStride;
		src  += srcStride;

		for(i=0; i<chromWidth; i++)
		{
			ydst[2*i+0] 	= src[4*i+1];
			ydst[2*i+1] 	= src[4*i+3];
		}
#endif
		udst += chromStride;
		vdst += chromStride;
		ydst += lumStride;
		src  += srcStride;
	}
#ifdef HAVE_MMX
asm volatile(   EMMS" \n\t"
        	SFENCE" \n\t"
        	:::"memory");
#endif
}

/**
 *
 * height should be a multiple of 2 and width should be a multiple of 2 (if this is a
 * problem for anyone then tell me, and ill fix it)
 * chrominance data is only taken from every secound line others are ignored in the C version FIXME write HQ version
 */
static inline void RENAME(rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
	unsigned int width, unsigned int height,
	unsigned int lumStride, unsigned int chromStride, unsigned int srcStride)
{
	int y;
	const int chromWidth= width>>1;
#ifdef HAVE_MMX
	for(y=0; y<height-2; y+=2)
	{
		int i;
		for(i=0; i<2; i++)
		{
			asm volatile(
				"movl %2, %%eax			\n\t"
				"movq "MANGLE(bgr2YCoeff)", %%mm6		\n\t"
				"movq "MANGLE(w1111)", %%mm5		\n\t"
				"pxor %%mm7, %%mm7		\n\t"
				"leal (%%eax, %%eax, 2), %%ebx	\n\t"
				".balign 16			\n\t"
				"1:				\n\t"
				PREFETCH" 64(%0, %%ebx)		\n\t"
				"movd (%0, %%ebx), %%mm0	\n\t"
				"movd 3(%0, %%ebx), %%mm1	\n\t"
				"punpcklbw %%mm7, %%mm0		\n\t"
				"punpcklbw %%mm7, %%mm1		\n\t"
				"movd 6(%0, %%ebx), %%mm2	\n\t"
				"movd 9(%0, %%ebx), %%mm3	\n\t"
				"punpcklbw %%mm7, %%mm2		\n\t"
				"punpcklbw %%mm7, %%mm3		\n\t"
				"pmaddwd %%mm6, %%mm0		\n\t"
				"pmaddwd %%mm6, %%mm1		\n\t"
				"pmaddwd %%mm6, %%mm2		\n\t"
				"pmaddwd %%mm6, %%mm3		\n\t"
#ifndef FAST_BGR2YV12
				"psrad $8, %%mm0		\n\t"
				"psrad $8, %%mm1		\n\t"
				"psrad $8, %%mm2		\n\t"
				"psrad $8, %%mm3		\n\t"
#endif
				"packssdw %%mm1, %%mm0		\n\t"
				"packssdw %%mm3, %%mm2		\n\t"
				"pmaddwd %%mm5, %%mm0		\n\t"
				"pmaddwd %%mm5, %%mm2		\n\t"
				"packssdw %%mm2, %%mm0		\n\t"
				"psraw $7, %%mm0		\n\t"

				"movd 12(%0, %%ebx), %%mm4	\n\t"
				"movd 15(%0, %%ebx), %%mm1	\n\t"
				"punpcklbw %%mm7, %%mm4		\n\t"
				"punpcklbw %%mm7, %%mm1		\n\t"
				"movd 18(%0, %%ebx), %%mm2	\n\t"
				"movd 21(%0, %%ebx), %%mm3	\n\t"
				"punpcklbw %%mm7, %%mm2		\n\t"
				"punpcklbw %%mm7, %%mm3		\n\t"
				"pmaddwd %%mm6, %%mm4		\n\t"
				"pmaddwd %%mm6, %%mm1		\n\t"
				"pmaddwd %%mm6, %%mm2		\n\t"
				"pmaddwd %%mm6, %%mm3		\n\t"
#ifndef FAST_BGR2YV12
				"psrad $8, %%mm4		\n\t"
				"psrad $8, %%mm1		\n\t"
				"psrad $8, %%mm2		\n\t"
				"psrad $8, %%mm3		\n\t"
#endif
				"packssdw %%mm1, %%mm4		\n\t"
				"packssdw %%mm3, %%mm2		\n\t"
				"pmaddwd %%mm5, %%mm4		\n\t"
				"pmaddwd %%mm5, %%mm2		\n\t"
				"addl $24, %%ebx		\n\t"
				"packssdw %%mm2, %%mm4		\n\t"
				"psraw $7, %%mm4		\n\t"

				"packuswb %%mm4, %%mm0		\n\t"
				"paddusb "MANGLE(bgr2YOffset)", %%mm0	\n\t"

				MOVNTQ" %%mm0, (%1, %%eax)	\n\t"
				"addl $8, %%eax			\n\t"
				" js 1b				\n\t"
				: : "r" (src+width*3), "r" (ydst+width), "g" (-width)
				: "%eax", "%ebx"
			);
			ydst += lumStride;
			src  += srcStride;
		}
		src -= srcStride*2;
		asm volatile(
			"movl %4, %%eax			\n\t"
			"movq "MANGLE(w1111)", %%mm5		\n\t"
			"movq "MANGLE(bgr2UCoeff)", %%mm6		\n\t"
			"pxor %%mm7, %%mm7		\n\t"
			"leal (%%eax, %%eax, 2), %%ebx	\n\t"
			"addl %%ebx, %%ebx		\n\t"
			".balign 16			\n\t"
			"1:				\n\t"
			PREFETCH" 64(%0, %%ebx)		\n\t"
			PREFETCH" 64(%1, %%ebx)		\n\t"
#if defined (HAVE_MMX2) || defined (HAVE_3DNOW)
			"movq (%0, %%ebx), %%mm0	\n\t"
			"movq (%1, %%ebx), %%mm1	\n\t"
			"movq 6(%0, %%ebx), %%mm2	\n\t"
			"movq 6(%1, %%ebx), %%mm3	\n\t"
			PAVGB" %%mm1, %%mm0		\n\t"
			PAVGB" %%mm3, %%mm2		\n\t"
			"movq %%mm0, %%mm1		\n\t"
			"movq %%mm2, %%mm3		\n\t"
			"psrlq $24, %%mm0		\n\t"
			"psrlq $24, %%mm2		\n\t"
			PAVGB" %%mm1, %%mm0		\n\t"
			PAVGB" %%mm3, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm0		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
#else
			"movd (%0, %%ebx), %%mm0	\n\t"
			"movd (%1, %%ebx), %%mm1	\n\t"
			"movd 3(%0, %%ebx), %%mm2	\n\t"
			"movd 3(%1, %%ebx), %%mm3	\n\t"
			"punpcklbw %%mm7, %%mm0		\n\t"
			"punpcklbw %%mm7, %%mm1		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm3		\n\t"
			"paddw %%mm1, %%mm0		\n\t"
			"paddw %%mm3, %%mm2		\n\t"
			"paddw %%mm2, %%mm0		\n\t"
			"movd 6(%0, %%ebx), %%mm4	\n\t"
			"movd 6(%1, %%ebx), %%mm1	\n\t"
			"movd 9(%0, %%ebx), %%mm2	\n\t"
			"movd 9(%1, %%ebx), %%mm3	\n\t"
			"punpcklbw %%mm7, %%mm4		\n\t"
			"punpcklbw %%mm7, %%mm1		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm3		\n\t"
			"paddw %%mm1, %%mm4		\n\t"
			"paddw %%mm3, %%mm2		\n\t"
			"paddw %%mm4, %%mm2		\n\t"
			"psrlw $2, %%mm0		\n\t"
			"psrlw $2, %%mm2		\n\t"
#endif
			"movq "MANGLE(bgr2VCoeff)", %%mm1		\n\t"
			"movq "MANGLE(bgr2VCoeff)", %%mm3		\n\t"

			"pmaddwd %%mm0, %%mm1		\n\t"
			"pmaddwd %%mm2, %%mm3		\n\t"
			"pmaddwd %%mm6, %%mm0		\n\t"
			"pmaddwd %%mm6, %%mm2		\n\t"
#ifndef FAST_BGR2YV12
			"psrad $8, %%mm0		\n\t"
			"psrad $8, %%mm1		\n\t"
			"psrad $8, %%mm2		\n\t"
			"psrad $8, %%mm3		\n\t"
#endif
			"packssdw %%mm2, %%mm0		\n\t"
			"packssdw %%mm3, %%mm1		\n\t"
			"pmaddwd %%mm5, %%mm0		\n\t"
			"pmaddwd %%mm5, %%mm1		\n\t"
			"packssdw %%mm1, %%mm0		\n\t" // V1 V0 U1 U0
			"psraw $7, %%mm0		\n\t"

#if defined (HAVE_MMX2) || defined (HAVE_3DNOW)
			"movq 12(%0, %%ebx), %%mm4	\n\t"
			"movq 12(%1, %%ebx), %%mm1	\n\t"
			"movq 18(%0, %%ebx), %%mm2	\n\t"
			"movq 18(%1, %%ebx), %%mm3	\n\t"
			PAVGB" %%mm1, %%mm4		\n\t"
			PAVGB" %%mm3, %%mm2		\n\t"
			"movq %%mm4, %%mm1		\n\t"
			"movq %%mm2, %%mm3		\n\t"
			"psrlq $24, %%mm4		\n\t"
			"psrlq $24, %%mm2		\n\t"
			PAVGB" %%mm1, %%mm4		\n\t"
			PAVGB" %%mm3, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm4		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
#else
			"movd 12(%0, %%ebx), %%mm4	\n\t"
			"movd 12(%1, %%ebx), %%mm1	\n\t"
			"movd 15(%0, %%ebx), %%mm2	\n\t"
			"movd 15(%1, %%ebx), %%mm3	\n\t"
			"punpcklbw %%mm7, %%mm4		\n\t"
			"punpcklbw %%mm7, %%mm1		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm3		\n\t"
			"paddw %%mm1, %%mm4		\n\t"
			"paddw %%mm3, %%mm2		\n\t"
			"paddw %%mm2, %%mm4		\n\t"
			"movd 18(%0, %%ebx), %%mm5	\n\t"
			"movd 18(%1, %%ebx), %%mm1	\n\t"
			"movd 21(%0, %%ebx), %%mm2	\n\t"
			"movd 21(%1, %%ebx), %%mm3	\n\t"
			"punpcklbw %%mm7, %%mm5		\n\t"
			"punpcklbw %%mm7, %%mm1		\n\t"
			"punpcklbw %%mm7, %%mm2		\n\t"
			"punpcklbw %%mm7, %%mm3		\n\t"
			"paddw %%mm1, %%mm5		\n\t"
			"paddw %%mm3, %%mm2		\n\t"
			"paddw %%mm5, %%mm2		\n\t"
			"movq "MANGLE(w1111)", %%mm5		\n\t"
			"psrlw $2, %%mm4		\n\t"
			"psrlw $2, %%mm2		\n\t"
#endif
			"movq "MANGLE(bgr2VCoeff)", %%mm1		\n\t"
			"movq "MANGLE(bgr2VCoeff)", %%mm3		\n\t"

			"pmaddwd %%mm4, %%mm1		\n\t"
			"pmaddwd %%mm2, %%mm3		\n\t"
			"pmaddwd %%mm6, %%mm4		\n\t"
			"pmaddwd %%mm6, %%mm2		\n\t"
#ifndef FAST_BGR2YV12
			"psrad $8, %%mm4		\n\t"
			"psrad $8, %%mm1		\n\t"
			"psrad $8, %%mm2		\n\t"
			"psrad $8, %%mm3		\n\t"
#endif
			"packssdw %%mm2, %%mm4		\n\t"
			"packssdw %%mm3, %%mm1		\n\t"
			"pmaddwd %%mm5, %%mm4		\n\t"
			"pmaddwd %%mm5, %%mm1		\n\t"
			"addl $24, %%ebx		\n\t"
			"packssdw %%mm1, %%mm4		\n\t" // V3 V2 U3 U2
			"psraw $7, %%mm4		\n\t"

			"movq %%mm0, %%mm1		\n\t"
			"punpckldq %%mm4, %%mm0		\n\t"
			"punpckhdq %%mm4, %%mm1		\n\t"
			"packsswb %%mm1, %%mm0		\n\t"
			"paddb "MANGLE(bgr2UVOffset)", %%mm0	\n\t"

			"movd %%mm0, (%2, %%eax)	\n\t"
			"punpckhdq %%mm0, %%mm0		\n\t"
			"movd %%mm0, (%3, %%eax)	\n\t"
			"addl $4, %%eax			\n\t"
			" js 1b				\n\t"
			: : "r" (src+width*6), "r" (src+srcStride+width*6), "r" (udst+width), "r" (vdst+width), "g" (-width)
			: "%eax", "%ebx"
		);

		udst += chromStride;
		vdst += chromStride;
		src  += srcStride*2;
	}

	asm volatile(   EMMS" \n\t"
			SFENCE" \n\t"
			:::"memory");
#else
	y=0;
#endif
	for(; y<height; y+=2)
	{
		int i;
		for(i=0; i<chromWidth; i++)
		{
			unsigned int b= src[6*i+0];
			unsigned int g= src[6*i+1];
			unsigned int r= src[6*i+2];

			unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
			unsigned int V  =  ((RV*r + GV*g + BV*b)>>RGB2YUV_SHIFT) + 128;
			unsigned int U  =  ((RU*r + GU*g + BU*b)>>RGB2YUV_SHIFT) + 128;

			udst[i] 	= U;
			vdst[i] 	= V;
			ydst[2*i] 	= Y;

			b= src[6*i+3];
			g= src[6*i+4];
			r= src[6*i+5];

			Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
			ydst[2*i+1] 	= Y;
		}
		ydst += lumStride;
		src  += srcStride;

		for(i=0; i<chromWidth; i++)
		{
			unsigned int b= src[6*i+0];
			unsigned int g= src[6*i+1];
			unsigned int r= src[6*i+2];

			unsigned int Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;

			ydst[2*i] 	= Y;

			b= src[6*i+3];
			g= src[6*i+4];
			r= src[6*i+5];

			Y  =  ((RY*r + GY*g + BY*b)>>RGB2YUV_SHIFT) + 16;
			ydst[2*i+1] 	= Y;
		}
		udst += chromStride;
		vdst += chromStride;
		ydst += lumStride;
		src  += srcStride;
	}
}

void RENAME(interleaveBytes)(uint8_t *src1, uint8_t *src2, uint8_t *dest,
			    int width, int height, int src1Stride, int src2Stride, int dstStride){
	int h;

	for(h=0; h < height; h++)
	{
		int w;

#ifdef HAVE_MMX
#ifdef HAVE_SSE2
		asm(
			"xorl %%eax, %%eax		\n\t"
			"1:				\n\t"
			PREFETCH" 64(%1, %%eax)		\n\t"
			PREFETCH" 64(%2, %%eax)		\n\t"
			"movdqa (%1, %%eax), %%xmm0	\n\t"
			"movdqa (%1, %%eax), %%xmm1	\n\t"
			"movdqa (%2, %%eax), %%xmm2	\n\t"
			"punpcklbw %%xmm2, %%xmm0	\n\t"
			"punpckhbw %%xmm2, %%xmm1	\n\t"
			"movntdq %%xmm0, (%0, %%eax, 2)	\n\t"
			"movntdq %%xmm1, 16(%0, %%eax, 2)\n\t"
			"addl $16, %%eax			\n\t"
			"cmpl %3, %%eax			\n\t"
			" jb 1b				\n\t"
			::"r"(dest), "r"(src1), "r"(src2), "r" (width-15)
			: "memory", "%eax"
		);
#else
		asm(
			"xorl %%eax, %%eax		\n\t"
			"1:				\n\t"
			PREFETCH" 64(%1, %%eax)		\n\t"
			PREFETCH" 64(%2, %%eax)		\n\t"
			"movq (%1, %%eax), %%mm0	\n\t"
			"movq 8(%1, %%eax), %%mm2	\n\t"
			"movq %%mm0, %%mm1		\n\t"
			"movq %%mm2, %%mm3		\n\t"
			"movq (%2, %%eax), %%mm4	\n\t"
			"movq 8(%2, %%eax), %%mm5	\n\t"
			"punpcklbw %%mm4, %%mm0		\n\t"
			"punpckhbw %%mm4, %%mm1		\n\t"
			"punpcklbw %%mm5, %%mm2		\n\t"
			"punpckhbw %%mm5, %%mm3		\n\t"
			MOVNTQ" %%mm0, (%0, %%eax, 2)	\n\t"
			MOVNTQ" %%mm1, 8(%0, %%eax, 2)	\n\t"
			MOVNTQ" %%mm2, 16(%0, %%eax, 2)	\n\t"
			MOVNTQ" %%mm3, 24(%0, %%eax, 2)	\n\t"
			"addl $16, %%eax			\n\t"
			"cmpl %3, %%eax			\n\t"
			" jb 1b				\n\t"
			::"r"(dest), "r"(src1), "r"(src2), "r" (width-15)
			: "memory", "%eax"
		);
#endif
		for(w= (width&(~15)); w < width; w++)
		{
			dest[2*w+0] = src1[w];
			dest[2*w+1] = src2[w];
		}
#else
		for(w=0; w < width; w++)
		{
			dest[2*w+0] = src1[w];
			dest[2*w+1] = src2[w];
		}
#endif
		dest += dstStride;
                src1 += src1Stride;
                src2 += src2Stride;
	}
#ifdef HAVE_MMX
	asm(
		EMMS" \n\t"
		SFENCE" \n\t"
		::: "memory"
		);
#endif
}