mirror of
https://github.com/Relintai/pandemonium_engine.git
synced 2024-12-22 11:56:49 +01:00
62 lines
1.6 KiB
C++
62 lines
1.6 KiB
C++
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#if !defined(_x86_vc_mmxfrag_H)
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# define _x86_vc_mmxfrag_H (1)
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# include <stddef.h>
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# include "x86int.h"
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#if defined(OC_X86_ASM)
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/*Copies an 8x8 block of pixels from _src to _dst, assuming _ystride bytes
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between rows.*/
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#define OC_FRAG_COPY_MMX(_dst,_src,_ystride) \
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do{ \
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const unsigned char *src; \
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unsigned char *dst; \
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src=(_src); \
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dst=(_dst); \
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__asm mov SRC,src \
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__asm mov DST,dst \
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__asm mov YSTRIDE,_ystride \
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/*src+0*ystride*/ \
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__asm movq mm0,[SRC] \
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/*src+1*ystride*/ \
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__asm movq mm1,[SRC+YSTRIDE] \
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/*ystride3=ystride*3*/ \
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__asm lea YSTRIDE3,[YSTRIDE+YSTRIDE*2] \
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/*src+2*ystride*/ \
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__asm movq mm2,[SRC+YSTRIDE*2] \
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/*src+3*ystride*/ \
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__asm movq mm3,[SRC+YSTRIDE3] \
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/*dst+0*ystride*/ \
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__asm movq [DST],mm0 \
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/*dst+1*ystride*/ \
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__asm movq [DST+YSTRIDE],mm1 \
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/*Pointer to next 4.*/ \
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__asm lea SRC,[SRC+YSTRIDE*4] \
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/*dst+2*ystride*/ \
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__asm movq [DST+YSTRIDE*2],mm2 \
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/*dst+3*ystride*/ \
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__asm movq [DST+YSTRIDE3],mm3 \
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/*Pointer to next 4.*/ \
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__asm lea DST,[DST+YSTRIDE*4] \
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/*src+0*ystride*/ \
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__asm movq mm0,[SRC] \
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/*src+1*ystride*/ \
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__asm movq mm1,[SRC+YSTRIDE] \
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/*src+2*ystride*/ \
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__asm movq mm2,[SRC+YSTRIDE*2] \
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/*src+3*ystride*/ \
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__asm movq mm3,[SRC+YSTRIDE3] \
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/*dst+0*ystride*/ \
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__asm movq [DST],mm0 \
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/*dst+1*ystride*/ \
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__asm movq [DST+YSTRIDE],mm1 \
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/*dst+2*ystride*/ \
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__asm movq [DST+YSTRIDE*2],mm2 \
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/*dst+3*ystride*/ \
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__asm movq [DST+YSTRIDE3],mm3 \
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} \
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while(0)
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# endif
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#endif
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