65 lines
1.9 KiB
C
65 lines
1.9 KiB
C
|
#if !defined(_x86_mmxfrag_H)
|
||
|
|
# define _x86_mmxfrag_H (1)
|
||
|
|
# include <stddef.h>
|
||
|
|
# include "x86int.h"
|
||
|
|
|
||
|
|
#if defined(OC_X86_ASM)
|
||
|
|
|
||
|
|
/*Copies an 8x8 block of pixels from _src to _dst, assuming _ystride bytes
|
||
|
|
between rows.*/
|
||
|
|
#define OC_FRAG_COPY_MMX(_dst,_src,_ystride) \
|
||
|
|
do{ \
|
||
|
|
const unsigned char *src; \
|
||
|
|
unsigned char *dst; \
|
||
|
|
ptrdiff_t ystride3; \
|
||
|
|
src=(_src); \
|
||
|
|
dst=(_dst); \
|
||
|
|
__asm__ __volatile__( \
|
||
|
|
/*src+0*ystride*/ \
|
||
|
|
"movq (%[src]),%%mm0\n\t" \
|
||
|
|
/*src+1*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride]),%%mm1\n\t" \
|
||
|
|
/*ystride3=ystride*3*/ \
|
||
|
|
"lea (%[ystride],%[ystride],2),%[ystride3]\n\t" \
|
||
|
|
/*src+2*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride],2),%%mm2\n\t" \
|
||
|
|
/*src+3*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride3]),%%mm3\n\t" \
|
||
|
|
/*dst+0*ystride*/ \
|
||
|
|
"movq %%mm0,(%[dst])\n\t" \
|
||
|
|
/*dst+1*ystride*/ \
|
||
|
|
"movq %%mm1,(%[dst],%[ystride])\n\t" \
|
||
|
|
/*Pointer to next 4.*/ \
|
||
|
|
"lea (%[src],%[ystride],4),%[src]\n\t" \
|
||
|
|
/*dst+2*ystride*/ \
|
||
|
|
"movq %%mm2,(%[dst],%[ystride],2)\n\t" \
|
||
|
|
/*dst+3*ystride*/ \
|
||
|
|
"movq %%mm3,(%[dst],%[ystride3])\n\t" \
|
||
|
|
/*Pointer to next 4.*/ \
|
||
|
|
"lea (%[dst],%[ystride],4),%[dst]\n\t" \
|
||
|
|
/*src+0*ystride*/ \
|
||
|
|
"movq (%[src]),%%mm0\n\t" \
|
||
|
|
/*src+1*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride]),%%mm1\n\t" \
|
||
|
|
/*src+2*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride],2),%%mm2\n\t" \
|
||
|
|
/*src+3*ystride*/ \
|
||
|
|
"movq (%[src],%[ystride3]),%%mm3\n\t" \
|
||
|
|
/*dst+0*ystride*/ \
|
||
|
|
"movq %%mm0,(%[dst])\n\t" \
|
||
|
|
/*dst+1*ystride*/ \
|
||
|
|
"movq %%mm1,(%[dst],%[ystride])\n\t" \
|
||
|
|
/*dst+2*ystride*/ \
|
||
|
|
"movq %%mm2,(%[dst],%[ystride],2)\n\t" \
|
||
|
|
/*dst+3*ystride*/ \
|
||
|
|
"movq %%mm3,(%[dst],%[ystride3])\n\t" \
|
||
|
|
:[dst]"+r"(dst),[src]"+r"(src),[ystride3]"=&r"(ystride3) \
|
||
|
|
:[ystride]"r"((ptrdiff_t)(_ystride)) \
|
||
|
|
:"memory" \
|
||
|
|
); \
|
||
|
|
} \
|
||
|
|
while(0)
|
||
|
|
|
||
|
|
# endif
|
||
|
|
#endif
|