413 lines
10 KiB
C
413 lines
10 KiB
C
/*
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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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* palette stuff & yuv stuff by Michael
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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,unsigned 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,unsigned 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,unsigned 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 unsigned *s1=( unsigned * )src;
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unsigned *d1=( unsigned * )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(const uint8_t *src, uint8_t *dst, unsigned num_pixels, const uint8_t *palette)
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{
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unsigned i;
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for(i=0; i<num_pixels; i++)
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((unsigned *)dst)[i] = ((unsigned *)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(const uint8_t *src, uint8_t *dst, unsigned num_pixels, const uint8_t *palette)
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{
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unsigned 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<num_pixels; i++)
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((unsigned *)(&dst[i*3])) = ((unsigned *)palette)[ src[i] ];
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*/
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for(i=0; i<num_pixels; 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(const uint8_t *src, uint8_t *dst, unsigned src_size)
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{
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unsigned j,i,num_pixels=src_size/4;
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uint16_t *d = (uint16_t *)dst;
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for(i=0,j=0; j<num_pixels; i+=4,j++)
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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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d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
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}
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}
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void rgb32to15(const uint8_t *src, uint8_t *dst, unsigned src_size)
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{
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unsigned j,i,num_pixels=src_size/4;
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uint16_t *d = (uint16_t *)dst;
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for(i=0,j=0; j<num_pixels; i+=4,j++)
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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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d[j]= (b>>3) | ((g&0xF8)<<2) | ((r&0xF8)<<7);
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}
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}
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void rgb24to16(const uint8_t *src, uint8_t *dst, unsigned src_size)
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{
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unsigned j,i,num_pixels=src_size/3;
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uint16_t *d = (uint16_t *)dst;
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for(i=0,j=0; j<num_pixels; i+=3,j++)
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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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d[j]= (b>>3) | ((g&0xFC)<<3) | ((r&0xF8)<<8);
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}
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}
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void rgb24to15(const uint8_t *src, uint8_t *dst, unsigned src_size)
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{
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unsigned j,i,num_pixels=src_size/3;
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uint16_t *d = (uint16_t *)dst;
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for(i=0,j=0; j<num_pixels; i+=3,j++)
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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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d[j]= (b>>3) | ((g&0xF8)<<2) | ((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(const uint8_t *src, uint8_t *dst, unsigned num_pixels, const uint8_t *palette)
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{
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unsigned i;
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for(i=0; i<num_pixels; 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(const uint8_t *src, uint8_t *dst, unsigned num_pixels, const uint8_t *palette)
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{
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unsigned i;
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for(i=0; i<num_pixels; 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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*
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* num_pixels must be a multiple of 16 for the MMX version
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*/
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void yv12toyuy2(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst, unsigned num_pixels)
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{
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#ifdef HAVE_MMX
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asm volatile(
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"xorl %%eax, %%eax \n\t"
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"1: \n\t"
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PREFETCH" 32(%1, %%eax, 2) \n\t"
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PREFETCH" 32(%2, %%eax) \n\t"
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PREFETCH" 32(%3, %%eax) \n\t"
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"movq (%2, %%eax), %%mm0 \n\t" // U(0)
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"movq %%mm0, %%mm2 \n\t" // U(0)
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"movq (%3, %%eax), %%mm1 \n\t" // V(0)
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"punpcklbw %%mm1, %%mm0 \n\t" // UVUV UVUV(0)
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"punpckhbw %%mm1, %%mm2 \n\t" // UVUV UVUV(8)
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"movq (%1, %%eax,2), %%mm3 \n\t" // Y(0)
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"movq 8(%1, %%eax,2), %%mm5 \n\t" // Y(8)
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"movq %%mm3, %%mm4 \n\t" // Y(0)
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"movq %%mm5, %%mm6 \n\t" // Y(8)
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"punpcklbw %%mm0, %%mm3 \n\t" // YUYV YUYV(0)
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"punpckhbw %%mm0, %%mm4 \n\t" // YUYV YUYV(4)
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"punpcklbw %%mm2, %%mm5 \n\t" // YUYV YUYV(8)
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"punpckhbw %%mm2, %%mm6 \n\t" // YUYV YUYV(12)
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MOVNTQ" %%mm3, (%0, %%eax, 4) \n\t"
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MOVNTQ" %%mm4, 8(%0, %%eax, 4) \n\t"
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MOVNTQ" %%mm5, 16(%0, %%eax, 4) \n\t"
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MOVNTQ" %%mm6, 24(%0, %%eax, 4) \n\t"
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"addl $8, %%eax \n\t"
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"cmpl %4, %%eax \n\t"
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" jb 1b \n\t"
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EMMS" \n\t"
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SFENCE
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::"r"(dst), "r"(ysrc), "r"(usrc), "r"(vsrc), "r" (num_pixels>>1)
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: "memory", "%eax"
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);
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#else
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int i;
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num_pixels>>=1;
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for(i=0; i<num_pixels; 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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#endif
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}
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void yuy2toyv12(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst, unsigned num_pixels)
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{
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#ifdef HAVE_MMX
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asm volatile(
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"xorl %%eax, %%eax \n\t"
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"pcmpeqw %%mm7, %%mm7 \n\t"
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"psrlw $8, %%mm7 \n\t" // FF,00,FF,00...
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"1: \n\t"
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PREFETCH" 64(%0, %%eax, 4) \n\t"
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"movq (%0, %%eax, 4), %%mm0 \n\t" // YUYV YUYV(0)
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"movq 8(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(4)
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"movq %%mm0, %%mm2 \n\t" // YUYV YUYV(0)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(4)
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"psrlw $8, %%mm0 \n\t" // U0V0 U0V0(0)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(4)
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"pand %%mm7, %%mm2 \n\t" // Y0Y0 Y0Y0(0)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(4)
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"packuswb %%mm1, %%mm0 \n\t" // UVUV UVUV(0)
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"packuswb %%mm3, %%mm2 \n\t" // YYYY YYYY(0)
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MOVNTQ" %%mm2, (%1, %%eax, 2) \n\t"
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"movq 16(%0, %%eax, 4), %%mm1 \n\t" // YUYV YUYV(8)
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"movq 24(%0, %%eax, 4), %%mm2 \n\t" // YUYV YUYV(12)
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"movq %%mm1, %%mm3 \n\t" // YUYV YUYV(8)
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"movq %%mm2, %%mm4 \n\t" // YUYV YUYV(12)
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"psrlw $8, %%mm1 \n\t" // U0V0 U0V0(8)
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"psrlw $8, %%mm2 \n\t" // U0V0 U0V0(12)
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"pand %%mm7, %%mm3 \n\t" // Y0Y0 Y0Y0(8)
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"pand %%mm7, %%mm4 \n\t" // Y0Y0 Y0Y0(12)
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"packuswb %%mm2, %%mm1 \n\t" // UVUV UVUV(8)
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"packuswb %%mm4, %%mm3 \n\t" // YYYY YYYY(8)
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MOVNTQ" %%mm3, 8(%1, %%eax, 2) \n\t"
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"movq %%mm0, %%mm2 \n\t" // UVUV UVUV(0)
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"movq %%mm1, %%mm3 \n\t" // UVUV UVUV(8)
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"psrlw $8, %%mm0 \n\t" // V0V0 V0V0(0)
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"psrlw $8, %%mm1 \n\t" // V0V0 V0V0(8)
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"pand %%mm7, %%mm2 \n\t" // U0U0 U0U0(0)
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"pand %%mm7, %%mm3 \n\t" // U0U0 U0U0(8)
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"packuswb %%mm1, %%mm0 \n\t" // VVVV VVVV(0)
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"packuswb %%mm3, %%mm2 \n\t" // UUUU UUUU(0)
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MOVNTQ" %%mm0, (%3, %%eax) \n\t"
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MOVNTQ" %%mm2, (%2, %%eax) \n\t"
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"addl $8, %%eax \n\t"
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"cmpl %4, %%eax \n\t"
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" jb 1b \n\t"
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EMMS" \n\t"
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SFENCE
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::"r"(src), "r"(ydst), "r"(udst), "r"(vdst), "r" (num_pixels>>1)
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: "memory", "%eax"
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);
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#else
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int i;
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num_pixels>>=1;
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for(i=0; i<num_pixels; 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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#endif
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} |