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