git.sesse.net Git - ffmpeg/blob - postproc/rgb2rgb.c

   1 /*
   2  *
   3  *  rgb2rgb.c, Software RGB to RGB convertor
   4  *  pluralize by Software PAL8 to RGB convertor
   5  *               Software YUV to YUV convertor
   6  *               Software YUV to RGB convertor
   7  *  Written by Nick Kurshev.
   8  *  palette & yuv & runtime cpu stuff by Michael (michaelni@gmx.at) (under GPL)
   9  */
  10 #include <inttypes.h>
  11 #include "config.h"
  12 #include "rgb2rgb.h"
  13 #include "swscale.h"
  14 #include "cpudetect.h"
  15 #include "mangle.h"
  16 #include "bswap.h"
  17 #include "libvo/fastmemcpy.h"
  18
  19 #define FAST_BGR2YV12 // use 7 bit coeffs instead of 15bit
  20
  21 void (*rgb24to32)(const uint8_t *src,uint8_t *dst,long src_size);
  22 void (*rgb24to16)(const uint8_t *src,uint8_t *dst,long src_size);
  23 void (*rgb24to15)(const uint8_t *src,uint8_t *dst,long src_size);
  24 void (*rgb32to24)(const uint8_t *src,uint8_t *dst,long src_size);
  25 void (*rgb32to16)(const uint8_t *src,uint8_t *dst,long src_size);
  26 void (*rgb32to15)(const uint8_t *src,uint8_t *dst,long src_size);
  27 void (*rgb15to16)(const uint8_t *src,uint8_t *dst,long src_size);
  28 void (*rgb15to24)(const uint8_t *src,uint8_t *dst,long src_size);
  29 void (*rgb15to32)(const uint8_t *src,uint8_t *dst,long src_size);
  30 void (*rgb16to15)(const uint8_t *src,uint8_t *dst,long src_size);
  31 void (*rgb16to24)(const uint8_t *src,uint8_t *dst,long src_size);
  32 void (*rgb16to32)(const uint8_t *src,uint8_t *dst,long src_size);
  33 //void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
  34 void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
  35 void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
  36 void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
  37 void (*rgb32tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
  38 //void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
  39 void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
  40 void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
  41
  42 void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  43         long width, long height,
  44         long lumStride, long chromStride, long dstStride);
  45 void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  46         long width, long height,
  47         long lumStride, long chromStride, long dstStride);
  48 void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  49         long width, long height,
  50         long lumStride, long chromStride, long dstStride);
  51 void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
  52         long width, long height,
  53         long lumStride, long chromStride, long srcStride);
  54 void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
  55         long width, long height,
  56         long lumStride, long chromStride, long srcStride);
  57 void (*planar2x)(const uint8_t *src, uint8_t *dst, long width, long height,
  58         long srcStride, long dstStride);
  59 void (*interleaveBytes)(uint8_t *src1, uint8_t *src2, uint8_t *dst,
  60                             long width, long height, long src1Stride,
  61                             long src2Stride, long dstStride);
  62 void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
  63                         uint8_t *dst1, uint8_t *dst2,
  64                         long width, long height,
  65                         long srcStride1, long srcStride2,
  66                         long dstStride1, long dstStride2);
  67 void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
  68                         uint8_t *dst,
  69                         long width, long height,
  70                         long srcStride1, long srcStride2,
  71                         long srcStride3, long dstStride);
  72
  73 #if defined(ARCH_X86) || defined(ARCH_X86_64)
  74 static const uint64_t mmx_null  __attribute__((aligned(8))) = 0x0000000000000000ULL;
  75 static const uint64_t mmx_one   __attribute__((aligned(8))) = 0xFFFFFFFFFFFFFFFFULL;
  76 static const uint64_t mask32b  attribute_used __attribute__((aligned(8))) = 0x000000FF000000FFULL;
  77 static const uint64_t mask32g  attribute_used __attribute__((aligned(8))) = 0x0000FF000000FF00ULL;
  78 static const uint64_t mask32r  attribute_used __attribute__((aligned(8))) = 0x00FF000000FF0000ULL;
  79 static const uint64_t mask32   __attribute__((aligned(8))) = 0x00FFFFFF00FFFFFFULL;
  80 static const uint64_t mask3216br __attribute__((aligned(8)))=0x00F800F800F800F8ULL;
  81 static const uint64_t mask3216g  __attribute__((aligned(8)))=0x0000FC000000FC00ULL;
  82 static const uint64_t mask3215g  __attribute__((aligned(8)))=0x0000F8000000F800ULL;
  83 static const uint64_t mul3216  __attribute__((aligned(8))) = 0x2000000420000004ULL;
  84 static const uint64_t mul3215  __attribute__((aligned(8))) = 0x2000000820000008ULL;
  85 static const uint64_t mask24b  attribute_used __attribute__((aligned(8))) = 0x00FF0000FF0000FFULL;
  86 static const uint64_t mask24g  attribute_used __attribute__((aligned(8))) = 0xFF0000FF0000FF00ULL;
  87 static const uint64_t mask24r  attribute_used __attribute__((aligned(8))) = 0x0000FF0000FF0000ULL;
  88 static const uint64_t mask24l  __attribute__((aligned(8))) = 0x0000000000FFFFFFULL;
  89 static const uint64_t mask24h  __attribute__((aligned(8))) = 0x0000FFFFFF000000ULL;
  90 static const uint64_t mask24hh  __attribute__((aligned(8))) = 0xffff000000000000ULL;
  91 static const uint64_t mask24hhh  __attribute__((aligned(8))) = 0xffffffff00000000ULL;
  92 static const uint64_t mask24hhhh  __attribute__((aligned(8))) = 0xffffffffffff0000ULL;
  93 static const uint64_t mask15b  __attribute__((aligned(8))) = 0x001F001F001F001FULL; /* 00000000 00011111  xxB */
  94 static const uint64_t mask15rg __attribute__((aligned(8))) = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000  RGx */
  95 static const uint64_t mask15s  __attribute__((aligned(8))) = 0xFFE0FFE0FFE0FFE0ULL;
  96 static const uint64_t mask15g  __attribute__((aligned(8))) = 0x03E003E003E003E0ULL;
  97 static const uint64_t mask15r  __attribute__((aligned(8))) = 0x7C007C007C007C00ULL;
  98 #define mask16b mask15b
  99 static const uint64_t mask16g  __attribute__((aligned(8))) = 0x07E007E007E007E0ULL;
 100 static const uint64_t mask16r  __attribute__((aligned(8))) = 0xF800F800F800F800ULL;
 101 static const uint64_t red_16mask  __attribute__((aligned(8))) = 0x0000f8000000f800ULL;
 102 static const uint64_t green_16mask __attribute__((aligned(8)))= 0x000007e0000007e0ULL;
 103 static const uint64_t blue_16mask __attribute__((aligned(8))) = 0x0000001f0000001fULL;
 104 static const uint64_t red_15mask  __attribute__((aligned(8))) = 0x00007c000000f800ULL;
 105 static const uint64_t green_15mask __attribute__((aligned(8)))= 0x000003e0000007e0ULL;
 106 static const uint64_t blue_15mask __attribute__((aligned(8))) = 0x0000001f0000001fULL;
 107
 108 #ifdef FAST_BGR2YV12
 109 static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000000210041000DULL;
 110 static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000FFEEFFDC0038ULL;
 111 static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00000038FFD2FFF8ULL;
 112 #else
 113 static const uint64_t bgr2YCoeff  attribute_used __attribute__((aligned(8))) = 0x000020E540830C8BULL;
 114 static const uint64_t bgr2UCoeff  attribute_used __attribute__((aligned(8))) = 0x0000ED0FDAC23831ULL;
 115 static const uint64_t bgr2VCoeff  attribute_used __attribute__((aligned(8))) = 0x00003831D0E6F6EAULL;
 116 #endif
 117 static const uint64_t bgr2YOffset attribute_used __attribute__((aligned(8))) = 0x1010101010101010ULL;
 118 static const uint64_t bgr2UVOffset attribute_used __attribute__((aligned(8)))= 0x8080808080808080ULL;
 119 static const uint64_t w1111       attribute_used __attribute__((aligned(8))) = 0x0001000100010001ULL;
 120
 121 #if 0
 122 static volatile uint64_t __attribute__((aligned(8))) b5Dither;
 123 static volatile uint64_t __attribute__((aligned(8))) g5Dither;
 124 static volatile uint64_t __attribute__((aligned(8))) g6Dither;
 125 static volatile uint64_t __attribute__((aligned(8))) r5Dither;
 126
 127 static uint64_t __attribute__((aligned(8))) dither4[2]={
 128         0x0103010301030103LL,
 129         0x0200020002000200LL,};
 130
 131 static uint64_t __attribute__((aligned(8))) dither8[2]={
 132         0x0602060206020602LL,
 133         0x0004000400040004LL,};
 134 #endif
 135 #endif
 136
 137 #define RGB2YUV_SHIFT 8
 138 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
 139 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
 140 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 141 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
 142 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
 143 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
 144 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
 145 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 146 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
 147
 148 //Note: we have C, MMX, MMX2, 3DNOW version therse no 3DNOW+MMX2 one
 149 //Plain C versions
 150 #undef HAVE_MMX
 151 #undef HAVE_MMX2
 152 #undef HAVE_3DNOW
 153 #undef HAVE_SSE2
 154 #define RENAME(a) a ## _C
 155 #include "rgb2rgb_template.c"
 156
 157 #if defined(ARCH_X86) || defined(ARCH_X86_64)
 158
 159 //MMX versions
 160 #undef RENAME
 161 #define HAVE_MMX
 162 #undef HAVE_MMX2
 163 #undef HAVE_3DNOW
 164 #undef HAVE_SSE2
 165 #define RENAME(a) a ## _MMX
 166 #include "rgb2rgb_template.c"
 167
 168 //MMX2 versions
 169 #undef RENAME
 170 #define HAVE_MMX
 171 #define HAVE_MMX2
 172 #undef HAVE_3DNOW
 173 #undef HAVE_SSE2
 174 #define RENAME(a) a ## _MMX2
 175 #include "rgb2rgb_template.c"
 176
 177 //3DNOW versions
 178 #undef RENAME
 179 #define HAVE_MMX
 180 #undef HAVE_MMX2
 181 #define HAVE_3DNOW
 182 #undef HAVE_SSE2
 183 #define RENAME(a) a ## _3DNOW
 184 #include "rgb2rgb_template.c"
 185
 186 #endif //ARCH_X86 || ARCH_X86_64
 187
 188 /*
 189  rgb15->rgb16 Original by Strepto/Astral
 190  ported to gcc & bugfixed : A'rpi
 191  MMX2, 3DNOW optimization by Nick Kurshev
 192  32bit c version, and and&add trick by Michael Niedermayer
 193 */
 194
 195 void sws_rgb2rgb_init(int flags){
 196 #if defined(ARCH_X86) || defined(ARCH_X86_64)
 197         if(flags & SWS_CPU_CAPS_MMX2){
 198                 rgb15to16= rgb15to16_MMX2;
 199                 rgb15to24= rgb15to24_MMX2;
 200                 rgb15to32= rgb15to32_MMX2;
 201                 rgb16to24= rgb16to24_MMX2;
 202                 rgb16to32= rgb16to32_MMX2;
 203                 rgb16to15= rgb16to15_MMX2;
 204                 rgb24to16= rgb24to16_MMX2;
 205                 rgb24to15= rgb24to15_MMX2;
 206                 rgb24to32= rgb24to32_MMX2;
 207                 rgb32to16= rgb32to16_MMX2;
 208                 rgb32to15= rgb32to15_MMX2;
 209                 rgb32to24= rgb32to24_MMX2;
 210                 rgb24tobgr15= rgb24tobgr15_MMX2;
 211                 rgb24tobgr16= rgb24tobgr16_MMX2;
 212                 rgb24tobgr24= rgb24tobgr24_MMX2;
 213                 rgb32tobgr32= rgb32tobgr32_MMX2;
 214                 rgb32tobgr16= rgb32tobgr16_MMX2;
 215                 rgb32tobgr15= rgb32tobgr15_MMX2;
 216                 yv12toyuy2= yv12toyuy2_MMX2;
 217                 yv12touyvy= yv12touyvy_MMX2;
 218                 yuv422ptoyuy2= yuv422ptoyuy2_MMX2;
 219                 yuy2toyv12= yuy2toyv12_MMX2;
 220 //              uyvytoyv12= uyvytoyv12_MMX2;
 221 //              yvu9toyv12= yvu9toyv12_MMX2;
 222                 planar2x= planar2x_MMX2;
 223                 rgb24toyv12= rgb24toyv12_MMX2;
 224                 interleaveBytes= interleaveBytes_MMX2;
 225                 vu9_to_vu12= vu9_to_vu12_MMX2;
 226                 yvu9_to_yuy2= yvu9_to_yuy2_MMX2;
 227         }else if(flags & SWS_CPU_CAPS_3DNOW){
 228                 rgb15to16= rgb15to16_3DNOW;
 229                 rgb15to24= rgb15to24_3DNOW;
 230                 rgb15to32= rgb15to32_3DNOW;
 231                 rgb16to24= rgb16to24_3DNOW;
 232                 rgb16to32= rgb16to32_3DNOW;
 233                 rgb16to15= rgb16to15_3DNOW;
 234                 rgb24to16= rgb24to16_3DNOW;
 235                 rgb24to15= rgb24to15_3DNOW;
 236                 rgb24to32= rgb24to32_3DNOW;
 237                 rgb32to16= rgb32to16_3DNOW;
 238                 rgb32to15= rgb32to15_3DNOW;
 239                 rgb32to24= rgb32to24_3DNOW;
 240                 rgb24tobgr15= rgb24tobgr15_3DNOW;
 241                 rgb24tobgr16= rgb24tobgr16_3DNOW;
 242                 rgb24tobgr24= rgb24tobgr24_3DNOW;
 243                 rgb32tobgr32= rgb32tobgr32_3DNOW;
 244                 rgb32tobgr16= rgb32tobgr16_3DNOW;
 245                 rgb32tobgr15= rgb32tobgr15_3DNOW;
 246                 yv12toyuy2= yv12toyuy2_3DNOW;
 247                 yv12touyvy= yv12touyvy_3DNOW;
 248                 yuv422ptoyuy2= yuv422ptoyuy2_3DNOW;
 249                 yuy2toyv12= yuy2toyv12_3DNOW;
 250 //              uyvytoyv12= uyvytoyv12_3DNOW;
 251 //              yvu9toyv12= yvu9toyv12_3DNOW;
 252                 planar2x= planar2x_3DNOW;
 253                 rgb24toyv12= rgb24toyv12_3DNOW;
 254                 interleaveBytes= interleaveBytes_3DNOW;
 255                 vu9_to_vu12= vu9_to_vu12_3DNOW;
 256                 yvu9_to_yuy2= yvu9_to_yuy2_3DNOW;
 257         }else if(flags & SWS_CPU_CAPS_MMX){
 258                 rgb15to16= rgb15to16_MMX;
 259                 rgb15to24= rgb15to24_MMX;
 260                 rgb15to32= rgb15to32_MMX;
 261                 rgb16to24= rgb16to24_MMX;
 262                 rgb16to32= rgb16to32_MMX;
 263                 rgb16to15= rgb16to15_MMX;
 264                 rgb24to16= rgb24to16_MMX;
 265                 rgb24to15= rgb24to15_MMX;
 266                 rgb24to32= rgb24to32_MMX;
 267                 rgb32to16= rgb32to16_MMX;
 268                 rgb32to15= rgb32to15_MMX;
 269                 rgb32to24= rgb32to24_MMX;
 270                 rgb24tobgr15= rgb24tobgr15_MMX;
 271                 rgb24tobgr16= rgb24tobgr16_MMX;
 272                 rgb24tobgr24= rgb24tobgr24_MMX;
 273                 rgb32tobgr32= rgb32tobgr32_MMX;
 274                 rgb32tobgr16= rgb32tobgr16_MMX;
 275                 rgb32tobgr15= rgb32tobgr15_MMX;
 276                 yv12toyuy2= yv12toyuy2_MMX;
 277                 yv12touyvy= yv12touyvy_MMX;
 278                 yuv422ptoyuy2= yuv422ptoyuy2_MMX;
 279                 yuy2toyv12= yuy2toyv12_MMX;
 280 //              uyvytoyv12= uyvytoyv12_MMX;
 281 //              yvu9toyv12= yvu9toyv12_MMX;
 282                 planar2x= planar2x_MMX;
 283                 rgb24toyv12= rgb24toyv12_MMX;
 284                 interleaveBytes= interleaveBytes_MMX;
 285                 vu9_to_vu12= vu9_to_vu12_MMX;
 286                 yvu9_to_yuy2= yvu9_to_yuy2_MMX;
 287         }else
 288 #endif
 289         {
 290                 rgb15to16= rgb15to16_C;
 291                 rgb15to24= rgb15to24_C;
 292                 rgb15to32= rgb15to32_C;
 293                 rgb16to24= rgb16to24_C;
 294                 rgb16to32= rgb16to32_C;
 295                 rgb16to15= rgb16to15_C;
 296                 rgb24to16= rgb24to16_C;
 297                 rgb24to15= rgb24to15_C;
 298                 rgb24to32= rgb24to32_C;
 299                 rgb32to16= rgb32to16_C;
 300                 rgb32to15= rgb32to15_C;
 301                 rgb32to24= rgb32to24_C;
 302                 rgb24tobgr15= rgb24tobgr15_C;
 303                 rgb24tobgr16= rgb24tobgr16_C;
 304                 rgb24tobgr24= rgb24tobgr24_C;
 305                 rgb32tobgr32= rgb32tobgr32_C;
 306                 rgb32tobgr16= rgb32tobgr16_C;
 307                 rgb32tobgr15= rgb32tobgr15_C;
 308                 yv12toyuy2= yv12toyuy2_C;
 309                 yv12touyvy= yv12touyvy_C;
 310                 yuv422ptoyuy2= yuv422ptoyuy2_C;
 311                 yuy2toyv12= yuy2toyv12_C;
 312 //              uyvytoyv12= uyvytoyv12_C;
 313 //              yvu9toyv12= yvu9toyv12_C;
 314                 planar2x= planar2x_C;
 315                 rgb24toyv12= rgb24toyv12_C;
 316                 interleaveBytes= interleaveBytes_C;
 317                 vu9_to_vu12= vu9_to_vu12_C;
 318                 yvu9_to_yuy2= yvu9_to_yuy2_C;
 319         }
 320 }
 321
 322 /**
 323  * Pallete is assumed to contain bgr32
 324  */
 325 void palette8torgb32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 326 {
 327         long i;
 328
 329 /*
 330         for(i=0; i<num_pixels; i++)
 331                 ((unsigned *)dst)[i] = ((unsigned *)palette)[ src[i] ];
 332 */
 333
 334         for(i=0; i<num_pixels; i++)
 335         {
 336                 #ifdef WORDS_BIGENDIAN
 337                         dst[3]= palette[ src[i]*4+2 ];
 338                         dst[2]= palette[ src[i]*4+1 ];
 339                         dst[1]= palette[ src[i]*4+0 ];
 340                 #else
 341                 //FIXME slow?
 342                         dst[0]= palette[ src[i]*4+2 ];
 343                         dst[1]= palette[ src[i]*4+1 ];
 344                         dst[2]= palette[ src[i]*4+0 ];
 345                         //dst[3]= 0; /* do we need this cleansing? */
 346                 #endif
 347                 dst+= 4;
 348         }
 349 }
 350
 351 void palette8tobgr32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 352 {
 353         long i;
 354         for(i=0; i<num_pixels; i++)
 355         {
 356                 #ifdef WORDS_BIGENDIAN
 357                         dst[3]= palette[ src[i]*4+0 ];
 358                         dst[2]= palette[ src[i]*4+1 ];
 359                         dst[1]= palette[ src[i]*4+2 ];
 360                 #else
 361                         //FIXME slow?
 362                         dst[0]= palette[ src[i]*4+0 ];
 363                         dst[1]= palette[ src[i]*4+1 ];
 364                         dst[2]= palette[ src[i]*4+2 ];
 365                         //dst[3]= 0; /* do we need this cleansing? */
 366                 #endif
 367
 368                 dst+= 4;
 369         }
 370 }
 371
 372 /**
 373  * Pallete is assumed to contain bgr32
 374  */
 375 void palette8torgb24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 376 {
 377         long i;
 378 /*
 379         writes 1 byte o much and might cause alignment issues on some architectures?
 380         for(i=0; i<num_pixels; i++)
 381                 ((unsigned *)(&dst[i*3])) = ((unsigned *)palette)[ src[i] ];
 382 */
 383         for(i=0; i<num_pixels; i++)
 384         {
 385                 //FIXME slow?
 386                 dst[0]= palette[ src[i]*4+2 ];
 387                 dst[1]= palette[ src[i]*4+1 ];
 388                 dst[2]= palette[ src[i]*4+0 ];
 389                 dst+= 3;
 390         }
 391 }
 392
 393 void palette8tobgr24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 394 {
 395         long i;
 396 /*
 397         writes 1 byte o much and might cause alignment issues on some architectures?
 398         for(i=0; i<num_pixels; i++)
 399                 ((unsigned *)(&dst[i*3])) = ((unsigned *)palette)[ src[i] ];
 400 */
 401         for(i=0; i<num_pixels; i++)
 402         {
 403                 //FIXME slow?
 404                 dst[0]= palette[ src[i]*4+0 ];
 405                 dst[1]= palette[ src[i]*4+1 ];
 406                 dst[2]= palette[ src[i]*4+2 ];
 407                 dst+= 3;
 408         }
 409 }
 410
 411 /**
 412  * Palette is assumed to contain bgr16, see rgb32to16 to convert the palette
 413  */
 414 void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 415 {
 416         long i;
 417         for(i=0; i<num_pixels; i++)
 418                 ((uint16_t *)dst)[i] = ((uint16_t *)palette)[ src[i] ];
 419 }
 420 void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 421 {
 422         long i;
 423         for(i=0; i<num_pixels; i++)
 424                 ((uint16_t *)dst)[i] = bswap_16(((uint16_t *)palette)[ src[i] ]);
 425 }
 426
 427 /**
 428  * Pallete is assumed to contain bgr15, see rgb32to15 to convert the palette
 429  */
 430 void palette8torgb15(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 431 {
 432         long i;
 433         for(i=0; i<num_pixels; i++)
 434                 ((uint16_t *)dst)[i] = ((uint16_t *)palette)[ src[i] ];
 435 }
 436 void palette8tobgr15(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 437 {
 438         long i;
 439         for(i=0; i<num_pixels; i++)
 440                 ((uint16_t *)dst)[i] = bswap_16(((uint16_t *)palette)[ src[i] ]);
 441 }
 442
 443 void rgb32tobgr24(const uint8_t *src, uint8_t *dst, long src_size)
 444 {
 445         long i;
 446         long num_pixels = src_size >> 2;
 447         for(i=0; i<num_pixels; i++)
 448         {
 449                 #ifdef WORDS_BIGENDIAN
 450                         /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
 451                         dst[3*i + 0] = src[4*i + 1];
 452                         dst[3*i + 1] = src[4*i + 2];
 453                         dst[3*i + 2] = src[4*i + 3];
 454                 #else
 455                         dst[3*i + 0] = src[4*i + 2];
 456                         dst[3*i + 1] = src[4*i + 1];
 457                         dst[3*i + 2] = src[4*i + 0];
 458                 #endif
 459         }
 460 }
 461
 462 void rgb24tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
 463 {
 464         long i;
 465         for(i=0; 3*i<src_size; i++)
 466         {
 467                 #ifdef WORDS_BIGENDIAN
 468                         /* RGB24 (= R,G,B) -> BGR32 (= A,R,G,B) */
 469                         dst[4*i + 0] = 0;
 470                         dst[4*i + 1] = src[3*i + 0];
 471                         dst[4*i + 2] = src[3*i + 1];
 472                         dst[4*i + 3] = src[3*i + 2];
 473                 #else
 474                         dst[4*i + 0] = src[3*i + 2];
 475                         dst[4*i + 1] = src[3*i + 1];
 476                         dst[4*i + 2] = src[3*i + 0];
 477                         dst[4*i + 3] = 0;
 478                 #endif
 479         }
 480 }
 481
 482 void rgb16tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
 483 {
 484         const uint16_t *end;
 485         uint8_t *d = (uint8_t *)dst;
 486         const uint16_t *s = (uint16_t *)src;
 487         end = s + src_size/2;
 488         while(s < end)
 489         {
 490                 register uint16_t bgr;
 491                 bgr = *s++;
 492                 #ifdef WORDS_BIGENDIAN
 493                         *d++ = 0;
 494                         *d++ = (bgr&0x1F)<<3;
 495                         *d++ = (bgr&0x7E0)>>3;
 496                         *d++ = (bgr&0xF800)>>8;
 497                 #else
 498                         *d++ = (bgr&0xF800)>>8;
 499                         *d++ = (bgr&0x7E0)>>3;
 500                         *d++ = (bgr&0x1F)<<3;
 501                         *d++ = 0;
 502                 #endif
 503         }
 504 }
 505
 506 void rgb16tobgr24(const uint8_t *src, uint8_t *dst, long src_size)
 507 {
 508         const uint16_t *end;
 509         uint8_t *d = (uint8_t *)dst;
 510         const uint16_t *s = (const uint16_t *)src;
 511         end = s + src_size/2;
 512         while(s < end)
 513         {
 514                 register uint16_t bgr;
 515                 bgr = *s++;
 516                 *d++ = (bgr&0xF800)>>8;
 517                 *d++ = (bgr&0x7E0)>>3;
 518                 *d++ = (bgr&0x1F)<<3;
 519         }
 520 }
 521
 522 void rgb16tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
 523 {
 524         long i;
 525         long num_pixels = src_size >> 1;
 526
 527         for(i=0; i<num_pixels; i++)
 528         {
 529             unsigned b,g,r;
 530             register uint16_t rgb;
 531             rgb = src[2*i];
 532             r = rgb&0x1F;
 533             g = (rgb&0x7E0)>>5;
 534             b = (rgb&0xF800)>>11;
 535             dst[2*i] = (b&0x1F) | ((g&0x3F)<<5) | ((r&0x1F)<<11);
 536         }
 537 }
 538
 539 void rgb16tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
 540 {
 541         long i;
 542         long num_pixels = src_size >> 1;
 543
 544         for(i=0; i<num_pixels; i++)
 545         {
 546             unsigned b,g,r;
 547             register uint16_t rgb;
 548             rgb = src[2*i];
 549             r = rgb&0x1F;
 550             g = (rgb&0x7E0)>>5;
 551             b = (rgb&0xF800)>>11;
 552             dst[2*i] = (b&0x1F) | ((g&0x1F)<<5) | ((r&0x1F)<<10);
 553         }
 554 }
 555
 556 void rgb15tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
 557 {
 558         const uint16_t *end;
 559         uint8_t *d = (uint8_t *)dst;
 560         const uint16_t *s = (const uint16_t *)src;
 561         end = s + src_size/2;
 562         while(s < end)
 563         {
 564                 register uint16_t bgr;
 565                 bgr = *s++;
 566                 #ifdef WORDS_BIGENDIAN
 567                         *d++ = 0;
 568                         *d++ = (bgr&0x1F)<<3;
 569                         *d++ = (bgr&0x3E0)>>2;
 570                         *d++ = (bgr&0x7C00)>>7;
 571                 #else
 572                         *d++ = (bgr&0x7C00)>>7;
 573                         *d++ = (bgr&0x3E0)>>2;
 574                         *d++ = (bgr&0x1F)<<3;
 575                         *d++ = 0;
 576                 #endif
 577         }
 578 }
 579
 580 void rgb15tobgr24(const uint8_t *src, uint8_t *dst, long src_size)
 581 {
 582         const uint16_t *end;
 583         uint8_t *d = (uint8_t *)dst;
 584         const uint16_t *s = (uint16_t *)src;
 585         end = s + src_size/2;
 586         while(s < end)
 587         {
 588                 register uint16_t bgr;
 589                 bgr = *s++;
 590                 *d++ = (bgr&0x7C00)>>7;
 591                 *d++ = (bgr&0x3E0)>>2;
 592                 *d++ = (bgr&0x1F)<<3;
 593         }
 594 }
 595
 596 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
 597 {
 598         long i;
 599         long num_pixels = src_size >> 1;
 600
 601         for(i=0; i<num_pixels; i++)
 602         {
 603             unsigned b,g,r;
 604             register uint16_t rgb;
 605             rgb = src[2*i];
 606             r = rgb&0x1F;
 607             g = (rgb&0x3E0)>>5;
 608             b = (rgb&0x7C00)>>10;
 609             dst[2*i] = (b&0x1F) | ((g&0x3F)<<5) | ((r&0x1F)<<11);
 610         }
 611 }
 612
 613 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
 614 {
 615         long i;
 616         long num_pixels = src_size >> 1;
 617
 618         for(i=0; i<num_pixels; i++)
 619         {
 620             unsigned b,g,r;
 621             register uint16_t rgb;
 622             rgb = src[2*i];
 623             r = rgb&0x1F;
 624             g = (rgb&0x3E0)>>5;
 625             b = (rgb&0x7C00)>>10;
 626             dst[2*i] = (b&0x1F) | ((g&0x1F)<<5) | ((r&0x1F)<<10);
 627         }
 628 }
 629
 630 void rgb8tobgr8(const uint8_t *src, uint8_t *dst, long src_size)
 631 {
 632         long i;
 633         long num_pixels = src_size;
 634         for(i=0; i<num_pixels; i++)
 635         {
 636             unsigned b,g,r;
 637             register uint8_t rgb;
 638             rgb = src[i];
 639             r = (rgb&0x07);
 640             g = (rgb&0x38)>>3;
 641             b = (rgb&0xC0)>>6;
 642             dst[i] = ((b<<1)&0x07) | ((g&0x07)<<3) | ((r&0x03)<<6);
 643         }
 644 }