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288 lines
6.6 KiB
288 lines
6.6 KiB
/* |
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* |
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* rgb2rgb.c, Software RGB to RGB convertor |
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* Written by Nick Kurshev. |
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*/ |
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#include <inttypes.h> |
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#include "../config.h" |
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#include "rgb2rgb.h" |
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#include "../mmx_defs.h" |
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#ifdef HAVE_MMX |
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static const uint64_t mask32 __attribute__((aligned(8))) = 0x00FFFFFF00FFFFFFULL; |
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static const uint64_t mask24l __attribute__((aligned(8))) = 0x0000000000FFFFFFULL; |
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static const uint64_t mask24h __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL; |
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static const uint64_t mask15b __attribute__((aligned(8))) = 0x001F001F001F001FULL; /* 00000000 00011111 xxB */ |
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static const uint64_t mask15rg __attribute__((aligned(8))) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000 RGx */ |
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static const uint64_t mask15s __attribute__((aligned(8))) = 0xFFE0FFE0FFE0FFE0ULL; |
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#endif |
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void rgb24to32(const uint8_t *src,uint8_t *dst,uint32_t src_size) |
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{ |
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uint8_t *dest = dst; |
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const uint8_t *s = src; |
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const uint8_t *end; |
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#ifdef HAVE_MMX |
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uint8_t *mm_end; |
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#endif |
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end = s + src_size; |
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#ifdef HAVE_MMX |
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__asm __volatile(PREFETCH" %0"::"m"(*s):"memory"); |
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2)); |
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__asm __volatile("movq %0, %%mm7"::"m"(mask32):"memory"); |
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if(mm_end == end) mm_end -= MMREG_SIZE*2; |
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while(s < mm_end) |
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{ |
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__asm __volatile( |
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PREFETCH" 32%1\n\t" |
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"movd %1, %%mm0\n\t" |
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"movd 3%1, %%mm1\n\t" |
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"movd 6%1, %%mm2\n\t" |
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"movd 9%1, %%mm3\n\t" |
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"punpckldq %%mm1, %%mm0\n\t" |
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"punpckldq %%mm3, %%mm2\n\t" |
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"pand %%mm7, %%mm0\n\t" |
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"pand %%mm7, %%mm2\n\t" |
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MOVNTQ" %%mm0, %0\n\t" |
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MOVNTQ" %%mm2, 8%0" |
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:"=m"(*dest) |
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:"m"(*s) |
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:"memory"); |
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dest += 16; |
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s += 12; |
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} |
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__asm __volatile(SFENCE:::"memory"); |
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__asm __volatile(EMMS:::"memory"); |
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#endif |
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while(s < end) |
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{ |
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*dest++ = *s++; |
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*dest++ = *s++; |
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*dest++ = *s++; |
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*dest++ = 0; |
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} |
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} |
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void rgb32to24(const uint8_t *src,uint8_t *dst,uint32_t src_size) |
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{ |
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uint8_t *dest = dst; |
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const uint8_t *s = src; |
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const uint8_t *end; |
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#ifdef HAVE_MMX |
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uint8_t *mm_end; |
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#endif |
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end = s + src_size; |
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#ifdef HAVE_MMX |
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__asm __volatile(PREFETCH" %0"::"m"(*s):"memory"); |
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mm_end = (uint8_t*)((((unsigned long)end)/(MMREG_SIZE*2))*(MMREG_SIZE*2)); |
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__asm __volatile( |
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"movq %0, %%mm7\n\t" |
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"movq %1, %%mm6" |
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::"m"(mask24l),"m"(mask24h):"memory"); |
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if(mm_end == end) mm_end -= MMREG_SIZE*2; |
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while(s < mm_end) |
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{ |
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__asm __volatile( |
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PREFETCH" 32%1\n\t" |
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"movq %1, %%mm0\n\t" |
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"movq 8%1, %%mm1\n\t" |
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"movq %%mm0, %%mm2\n\t" |
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"movq %%mm1, %%mm3\n\t" |
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"psrlq $8, %%mm2\n\t" |
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"psrlq $8, %%mm3\n\t" |
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"pand %%mm7, %%mm0\n\t" |
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"pand %%mm7, %%mm1\n\t" |
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"pand %%mm6, %%mm2\n\t" |
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"pand %%mm6, %%mm3\n\t" |
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"por %%mm2, %%mm0\n\t" |
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"por %%mm3, %%mm1\n\t" |
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MOVNTQ" %%mm0, %0\n\t" |
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MOVNTQ" %%mm1, 6%0" |
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:"=m"(*dest) |
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:"m"(*s) |
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:"memory"); |
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dest += 12; |
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s += 16; |
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} |
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__asm __volatile(SFENCE:::"memory"); |
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__asm __volatile(EMMS:::"memory"); |
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#endif |
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while(s < end) |
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{ |
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*dest++ = *s++; |
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*dest++ = *s++; |
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*dest++ = *s++; |
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s++; |
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} |
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} |
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/* |
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Original by Strepto/Astral |
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ported to gcc & bugfixed : A'rpi |
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MMX2, 3DNOW optimization by Nick Kurshev |
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32bit c version, and and&add trick by Michael Niedermayer |
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*/ |
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void rgb15to16(const uint8_t *src,uint8_t *dst,uint32_t src_size) |
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{ |
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#ifdef HAVE_MMX |
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register const char* s=src+src_size; |
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register char* d=dst+src_size; |
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register int offs=-src_size; |
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__asm __volatile(PREFETCH" %0"::"m"(*(s+offs))); |
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__asm __volatile( |
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"movq %0, %%mm4\n\t" |
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::"m"(mask15s)); |
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while(offs<0) |
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{ |
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__asm __volatile( |
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PREFETCH" 32%1\n\t" |
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"movq %1, %%mm0\n\t" |
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"movq 8%1, %%mm2\n\t" |
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"movq %%mm0, %%mm1\n\t" |
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"movq %%mm2, %%mm3\n\t" |
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"pand %%mm4, %%mm0\n\t" |
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"pand %%mm4, %%mm2\n\t" |
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"paddw %%mm1, %%mm0\n\t" |
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"paddw %%mm3, %%mm2\n\t" |
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MOVNTQ" %%mm0, %0\n\t" |
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MOVNTQ" %%mm2, 8%0" |
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:"=m"(*(d+offs)) |
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:"m"(*(s+offs)) |
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); |
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offs+=16; |
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} |
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__asm __volatile(SFENCE:::"memory"); |
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__asm __volatile(EMMS:::"memory"); |
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#else |
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#if 0 |
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const uint16_t *s1=( uint16_t * )src; |
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uint16_t *d1=( uint16_t * )dst; |
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uint16_t *e=((uint8_t *)s1)+src_size; |
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while( s1<e ){ |
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register int x=*( s1++ ); |
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/* rrrrrggggggbbbbb |
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0rrrrrgggggbbbbb |
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0111 1111 1110 0000=0x7FE0 |
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00000000000001 1111=0x001F */ |
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*( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 ); |
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} |
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#else |
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const uint32_t *s1=( uint32_t * )src; |
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uint32_t *d1=( uint32_t * )dst; |
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int i; |
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int size= src_size>>2; |
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for(i=0; i<size; i++) |
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{ |
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register int x= s1[i]; |
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// d1[i] = x + (x&0x7FE07FE0); //faster but need msbit =0 which might not allways be true |
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d1[i] = (x&0x7FFF7FFF) + (x&0x7FE07FE0); |
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} |
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#endif |
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#endif |
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} |
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/** |
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* Pallete is assumed to contain bgr32 |
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*/ |
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void palette8torgb32(uint8_t *src, uint8_t *dst, int src_size, uint8_t *palette) |
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{ |
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int i; |
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for(i=0; i<src_size; i++) |
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((uint32_t *)dst)[i] = ((uint32_t *)palette)[ src[i] ]; |
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} |
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/** |
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* Pallete is assumed to contain bgr32 |
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*/ |
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void palette8torgb24(uint8_t *src, uint8_t *dst, int src_size, uint8_t *palette) |
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{ |
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int i; |
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/* |
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writes 1 byte o much and might cause alignment issues on some architectures? |
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for(i=0; i<src_size; i++) |
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((uint32_t *)(&dst[i*3])) = ((uint32_t *)palette)[ src[i] ]; |
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*/ |
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for(i=0; i<src_size; i++) |
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{ |
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//FIXME slow? |
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dst[0]= palette[ src[i]*4+0 ]; |
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dst[1]= palette[ src[i]*4+1 ]; |
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dst[2]= palette[ src[i]*4+2 ]; |
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dst+= 3; |
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} |
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} |
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void rgb32to16(uint8_t *src, uint8_t *dst, int src_size) |
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{ |
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int i; |
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for(i=0; i<src_size; i+=4) |
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{ |
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const int b= src[i+0]; |
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const int g= src[i+1]; |
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const int r= src[i+2]; |
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((uint16_t *)dst)[i]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8); |
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} |
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} |
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void rgb32to15(uint8_t *src, uint8_t *dst, int src_size) |
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{ |
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int i; |
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for(i=0; i<src_size; i+=4) |
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{ |
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const int b= src[i+0]; |
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const int g= src[i+1]; |
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const int r= src[i+2]; |
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((uint16_t *)dst)[i]= (b>>3) | ((g&0xF8)<<3) | ((r&0xF8)<<7); |
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} |
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} |
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/** |
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* Palette is assumed to contain bgr16, see rgb32to16 to convert the palette |
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*/ |
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void palette8torgb16(uint8_t *src, uint8_t *dst, int src_size, uint8_t *palette) |
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{ |
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int i; |
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for(i=0; i<src_size; i++) |
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((uint16_t *)dst)[i] = ((uint16_t *)palette)[ src[i] ]; |
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} |
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/** |
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* Pallete is assumed to contain bgr15, see rgb32to15 to convert the palette |
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*/ |
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void palette8torgb15(uint8_t *src, uint8_t *dst, int src_size, uint8_t *palette) |
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{ |
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int i; |
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for(i=0; i<src_size; i++) |
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((uint16_t *)dst)[i] = ((uint16_t *)palette)[ src[i] ]; |
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} |
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void yv12toyuy2(uint8_t *ysrc, uint8_t *usrc, uint8_t *vsrc, uint8_t *dst, int src_size) |
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{ |
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int i; |
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src_size>>=1; |
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for(i=0; i<src_size; i++) |
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{ |
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dst[4*i+0] = ysrc[2*i+0]; |
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dst[4*i+1] = usrc[i]; |
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dst[4*i+2] = ysrc[2*i+1]; |
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dst[4*i+3] = vsrc[i]; |
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} |
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} |
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void yuy2toyv12(uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, int src_size) |
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{ |
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int i; |
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src_size>>=1; |
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for(i=0; i<src_size; i++) |
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{ |
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ydst[2*i+0] = src[4*i+0]; |
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udst[i] = src[4*i+1]; |
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ydst[2*i+1] = src[4*i+2]; |
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vdst[i] = src[4*i+3]; |
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} |
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} |