rgb2rgb_template.c
来自「君正早期ucos系统(只有早期的才不没有打包成库),MPLAYER,文件系统,图」· C语言 代码 · 共 1,883 行 · 第 1/5 页
C
1,883 行
"pand %%mm7, %%mm3 \n\t" "psrlq $5, %%mm1 \n\t" "psrlq $5, %%mm4 \n\t" "pand %%mm6, %%mm1 \n\t" "pand %%mm6, %%mm4 \n\t" "psrlq $19, %%mm2 \n\t" "psrlq $19, %%mm5 \n\t" "pand %2, %%mm2 \n\t" "pand %2, %%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; } __asm __volatile(SFENCE:::"memory"); __asm __volatile(EMMS:::"memory");#endif while (s < end) { const int r = *s++; const int g = *s++; const int b = *s++; *d++ = (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8); }}static inline void RENAME(rgb24to15)(const uint8_t *src, uint8_t *dst, long src_size){ const uint8_t *s = src; const uint8_t *end;#ifdef HAVE_MMX const uint8_t *mm_end;#endif uint16_t *d = (uint16_t *)dst; end = s + src_size;#ifdef HAVE_MMX __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)); mm_end = end - 11; 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; } __asm __volatile(SFENCE:::"memory"); __asm __volatile(EMMS:::"memory");#endif while (s < end) { const int b = *s++; const int g = *s++; const int r = *s++; *d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7); }}static inline void RENAME(rgb24tobgr15)(const uint8_t *src, uint8_t *dst, long src_size){ const uint8_t *s = src; const uint8_t *end;#ifdef HAVE_MMX const uint8_t *mm_end;#endif uint16_t *d = (uint16_t *)dst; end = s + src_size;#ifdef HAVE_MMX __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)); mm_end = end - 15; 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" "psllq $7, %%mm0 \n\t" "psllq $7, %%mm3 \n\t" "pand %%mm7, %%mm0 \n\t" "pand %%mm7, %%mm3 \n\t" "psrlq $6, %%mm1 \n\t" "psrlq $6, %%mm4 \n\t" "pand %%mm6, %%mm1 \n\t" "pand %%mm6, %%mm4 \n\t" "psrlq $19, %%mm2 \n\t" "psrlq $19, %%mm5 \n\t" "pand %2, %%mm2 \n\t" "pand %2, %%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; } __asm __volatile(SFENCE:::"memory"); __asm __volatile(EMMS:::"memory");#endif while (s < end) { const int r = *s++; const int g = *s++; const int b = *s++; *d++ = (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7); }}/* I use here less accurate approximation by simply left-shifting the input value and filling the low order bits with zeroes. This method improves png's compression but this scheme cannot reproduce white exactly, since it does not generate an all-ones maximum value; the net effect is to darken the image slightly. The better method should be "left bit replication": 4 3 2 1 0 --------- 1 1 0 1 1 7 6 5 4 3 2 1 0 ---------------- 1 1 0 1 1 1 1 0 |=======| |===| | Leftmost Bits Repeated to Fill Open Bits | Original Bits*/static inline void RENAME(rgb15to24)(const uint8_t *src, uint8_t *dst, long src_size){ const uint16_t *end;#ifdef HAVE_MMX const uint16_t *mm_end;#endif uint8_t *d = (uint8_t *)dst; const uint16_t *s = (uint16_t *)src; end = s + src_size/2;#ifdef HAVE_MMX __asm __volatile(PREFETCH" %0"::"m"(*s):"memory"); mm_end = end - 7; while (s < mm_end) { __asm __volatile( PREFETCH" 32%1 \n\t" "movq %1, %%mm0 \n\t" "movq %1, %%mm1 \n\t" "movq %1, %%mm2 \n\t" "pand %2, %%mm0 \n\t" "pand %3, %%mm1 \n\t" "pand %4, %%mm2 \n\t" "psllq $3, %%mm0 \n\t" "psrlq $2, %%mm1 \n\t" "psrlq $7, %%mm2 \n\t" "movq %%mm0, %%mm3 \n\t" "movq %%mm1, %%mm4 \n\t" "movq %%mm2, %%mm5 \n\t" "punpcklwd %5, %%mm0 \n\t" "punpcklwd %5, %%mm1 \n\t" "punpcklwd %5, %%mm2 \n\t" "punpckhwd %5, %%mm3 \n\t" "punpckhwd %5, %%mm4 \n\t" "punpckhwd %5, %%mm5 \n\t" "psllq $8, %%mm1 \n\t" "psllq $16, %%mm2 \n\t" "por %%mm1, %%mm0 \n\t" "por %%mm2, %%mm0 \n\t" "psllq $8, %%mm4 \n\t" "psllq $16, %%mm5 \n\t" "por %%mm4, %%mm3 \n\t" "por %%mm5, %%mm3 \n\t" "movq %%mm0, %%mm6 \n\t" "movq %%mm3, %%mm7 \n\t" "movq 8%1, %%mm0 \n\t" "movq 8%1, %%mm1 \n\t" "movq 8%1, %%mm2 \n\t" "pand %2, %%mm0 \n\t" "pand %3, %%mm1 \n\t" "pand %4, %%mm2 \n\t" "psllq $3, %%mm0 \n\t" "psrlq $2, %%mm1 \n\t" "psrlq $7, %%mm2 \n\t" "movq %%mm0, %%mm3 \n\t" "movq %%mm1, %%mm4 \n\t" "movq %%mm2, %%mm5 \n\t" "punpcklwd %5, %%mm0 \n\t" "punpcklwd %5, %%mm1 \n\t" "punpcklwd %5, %%mm2 \n\t" "punpckhwd %5, %%mm3 \n\t" "punpckhwd %5, %%mm4 \n\t" "punpckhwd %5, %%mm5 \n\t" "psllq $8, %%mm1 \n\t" "psllq $16, %%mm2 \n\t" "por %%mm1, %%mm0 \n\t" "por %%mm2, %%mm0 \n\t" "psllq $8, %%mm4 \n\t" "psllq $16, %%mm5 \n\t" "por %%mm4, %%mm3 \n\t" "por %%mm5, %%mm3 \n\t" :"=m"(*d) :"m"(*s),"m"(mask15b),"m"(mask15g),"m"(mask15r), "m"(mmx_null) :"memory"); /* Borrowed 32 to 24 */ __asm __volatile( "movq %%mm0, %%mm4 \n\t" "movq %%mm3, %%mm5 \n\t" "movq %%mm6, %%mm0 \n\t" "movq %%mm7, %%mm1 \n\t" "movq %%mm4, %%mm6 \n\t" "movq %%mm5, %%mm7 \n\t" "movq %%mm0, %%mm2 \n\t" "movq %%mm1, %%mm3 \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"(*d) :"m"(*s),"m"(mask24l),"m"(mask24h),"m"(mask24hh),"m"(mask24hhh),"m"(mask24hhhh) :"memory"); d += 24; s += 8; } __asm __volatile(SFENCE:::"memory"); __asm __volatile(EMMS:::"memory");#endif while (s < end) { register uint16_t bgr; bgr = *s++; *d++ = (bgr&0x1F)<<3; *d++ = (bgr&0x3E0)>>2; *d++ = (bgr&0x7C00)>>7; }}static inline void RENAME(rgb16to24)(const uint8_t *src, uint8_t *dst, long src_size){ const uint16_t *end;#ifdef HAVE_MMX const uint16_t *mm_end;#endif uint8_t *d = (uint8_t *)dst; const uint16_t *s = (const uint16_t *)src; end = s + src_size/2;#ifdef HAVE_MMX __asm __volatile(PREFETCH" %0"::"m"(*s):"memory"); mm_end = end - 7; while (s < mm_end) { __asm __volatile( PREFETCH" 32%1 \n\t" "movq %1, %%mm0 \n\t" "movq %1, %%mm1 \n\t" "movq %1, %%mm2 \n\t" "pand %2, %%mm0 \n\t" "pand %3, %%mm1 \n\t" "pand %4, %%mm2 \n\t" "psllq $3, %%mm0 \n\t" "psrlq $3, %%mm1 \n\t" "psrlq $8, %%mm2 \n\t" "movq %%mm0, %%mm3 \n\t" "movq %%mm1, %%mm4 \n\t" "movq %%mm2, %%mm5 \n\t" "punpcklwd %5, %%mm0 \n\t" "punpcklwd %5, %%mm1 \n\t" "punpcklwd %5, %%mm2 \n\t" "punpckhwd %5, %%mm3 \n\t" "punpckhwd %5, %%mm4 \n\t" "punpckhwd %5, %%mm5 \n\t" "psllq $8, %%mm1 \n\t" "psllq $16, %%mm2 \n\t" "por %%mm1, %%mm0 \n\t" "por %%mm2, %%mm0 \n\t" "psllq $8, %%mm4 \n\t" "psllq $16, %%mm5 \n\t" "por %%mm4, %%mm3 \n\t" "por %%mm5, %%mm3 \n\t" "movq %%mm0, %%mm6 \n\t" "movq %%mm3, %%mm7 \n\t" "movq 8%1, %%mm0 \n\t" "movq 8%1, %%mm1 \n\t" "movq 8%1, %%mm2 \n\t" "pand %2, %%mm0 \n\t" "pand %3, %%mm1 \n\t" "pand %4, %%mm2 \n\t" "psllq $3, %%mm0 \n\t" "psrlq $3, %%mm1 \n\t"⌨️ 快捷键说明
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