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https://github.com/mpv-player/mpv
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43 lines
906 B
C
43 lines
906 B
C
// Original by Strepto/Astral
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// ported to gcc & bugfixed : A'rpi
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#include <inttypes.h>
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//#include "attributes.h"
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#include "mmx.h"
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void rgb15to16_mmx(char* s0,char* d0,int count){
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static uint64_t mask_b = 0x001F001F001F001FLL; // 00000000 00011111 xxB
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static uint64_t mask_rg = 0x7FE07FE07FE07FE0LL; // 01111111 11100000 RGx
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register char* s=s0+count;
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register char* d=d0+count;
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register int offs=-count;
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movq_m2r (mask_b, mm4);
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movq_m2r (mask_rg, mm5);
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while(offs<0){
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movq_m2r (*(s+offs), mm0);
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movq_r2r (mm0, mm1);
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movq_m2r (*(s+8+offs), mm2);
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movq_r2r (mm2, mm3);
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pand_r2r (mm4, mm0);
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pand_r2r (mm5, mm1);
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psllq_i2r(1,mm1);
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pand_r2r (mm4, mm2);
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pand_r2r (mm5, mm3);
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por_r2r (mm1, mm0);
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psllq_i2r(1,mm3);
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movq_r2m (mm0,*(d+offs));
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por_r2r (mm3,mm2);
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movq_r2m (mm2,*(d+8+offs));
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offs+=16;
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}
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emms();
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}
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