mirror of
https://github.com/FFmpeg/FFmpeg.git
synced 2024-11-21 10:55:51 +02:00
89 lines
1.8 KiB
C
89 lines
1.8 KiB
C
#include <inttypes.h>
|
|
#include "../config.h"
|
|
#include "rgb2rgb.h"
|
|
#include "mmx.h"
|
|
|
|
/* TODO: MMX optimization */
|
|
|
|
void rgb24to32(uint8_t *src,uint8_t *dst,uint32_t src_size)
|
|
{
|
|
uint8_t *dest = dst;
|
|
uint8_t *s = src;
|
|
uint8_t *end;
|
|
end = s + src_size;
|
|
while(s < end)
|
|
{
|
|
*dest++ = *s++;
|
|
*dest++ = *s++;
|
|
*dest++ = *s++;
|
|
*dest++ = 0;
|
|
}
|
|
}
|
|
|
|
void rgb32to24(uint8_t *src,uint8_t *dst,uint32_t src_size)
|
|
{
|
|
uint8_t *dest = dst;
|
|
uint8_t *s = src;
|
|
uint8_t *end;
|
|
end = s + src_size;
|
|
while(s < end)
|
|
{
|
|
*dest++ = *s++;
|
|
*dest++ = *s++;
|
|
*dest++ = *s++;
|
|
s++;
|
|
}
|
|
}
|
|
|
|
/* Original by Strepto/Astral
|
|
ported to gcc & bugfixed : A'rpi */
|
|
void rgb15to16(uint8_t *src,uint8_t *dst,uint32_t src_size)
|
|
{
|
|
#ifdef HAVE_MMX
|
|
static uint64_t mask_b = 0x001F001F001F001FLL; // 00000000 00011111 xxB
|
|
static uint64_t mask_rg = 0x7FE07FE07FE07FE0LL; // 01111111 11100000 RGx
|
|
register char* s=src+src_size;
|
|
register char* d=dst+src_size;
|
|
register int offs=-src_size;
|
|
movq_m2r (mask_b, mm4);
|
|
movq_m2r (mask_rg, mm5);
|
|
while(offs<0){
|
|
movq_m2r (*(s+offs), mm0);
|
|
movq_r2r (mm0, mm1);
|
|
|
|
movq_m2r (*(s+8+offs), mm2);
|
|
movq_r2r (mm2, mm3);
|
|
|
|
pand_r2r (mm4, mm0);
|
|
pand_r2r (mm5, mm1);
|
|
|
|
psllq_i2r(1,mm1);
|
|
pand_r2r (mm4, mm2);
|
|
|
|
pand_r2r (mm5, mm3);
|
|
por_r2r (mm1, mm0);
|
|
|
|
psllq_i2r(1,mm3);
|
|
movq_r2m (mm0,*(d+offs));
|
|
|
|
por_r2r (mm3,mm2);
|
|
movq_r2m (mm2,*(d+8+offs));
|
|
|
|
offs+=16;
|
|
}
|
|
emms();
|
|
#else
|
|
uint16_t *s1=( uint16_t * )src;
|
|
uint16_t *d1=( uint16_t * )dst;
|
|
uint16_t *e=((uint8_t *)s1)+src_size;
|
|
while( s1<e ){
|
|
register int x=*( s1++ );
|
|
/* rrrrrggggggbbbbb
|
|
0rrrrrgggggbbbbb
|
|
0111 1111 1110 0000=0x7FE0
|
|
00000000000001 1111=0x001F */
|
|
*( d1++ )=( x&0x001F )|( ( x&0x7FE0 )<<1 );
|
|
}
|
|
#endif
|
|
}
|