libswscale/rgb2rgb.c

   1 /*
   2  * software RGB to RGB converter
   3  * pluralize by software PAL8 to RGB converter
   4  *              software YUV to YUV converter
   5  *              software YUV to RGB converter
   6  * Written by Nick Kurshev.
   7  * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
   8  *
   9  * This file is part of FFmpeg.
  10  *
  11  * FFmpeg is free software; you can redistribute it and/or
  12  * modify it under the terms of the GNU Lesser General Public
  13  * License as published by the Free Software Foundation; either
  14  * version 2.1 of the License, or (at your option) any later version.
  15  *
  16  * FFmpeg is distributed in the hope that it will be useful,
  17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  19  * Lesser General Public License for more details.
  20  *
  21  * You should have received a copy of the GNU Lesser General Public
  22  * License along with FFmpeg; if not, write to the Free Software
  23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  24  */
  25 #include <inttypes.h>
  26 #include "config.h"
  27 #include "libavutil/x86_cpu.h"
  28 #include "libavutil/bswap.h"
  29 #include "rgb2rgb.h"
  30 #include "swscale.h"
  31 #include "swscale_internal.h"
  32
  33 #define FAST_BGR2YV12 // use 7-bit instead of 15-bit coefficients
  34
  35 void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
  36 void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
  37 void (*rgb24tobgr15)(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 (*rgb32to16)(const uint8_t *src, uint8_t *dst, long src_size);
  40 void (*rgb32to15)(const uint8_t *src, uint8_t *dst, long src_size);
  41 void (*rgb15to16)(const uint8_t *src, uint8_t *dst, long src_size);
  42 void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
  43 void (*rgb15to32)(const uint8_t *src, uint8_t *dst, long src_size);
  44 void (*rgb16to15)(const uint8_t *src, uint8_t *dst, long src_size);
  45 void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
  46 void (*rgb16to32)(const uint8_t *src, uint8_t *dst, long src_size);
  47 void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, long src_size);
  48 void (*rgb24to16)(const uint8_t *src, uint8_t *dst, long src_size);
  49 void (*rgb24to15)(const uint8_t *src, uint8_t *dst, long src_size);
  50 void (*rgb32tobgr32)(const uint8_t *src, uint8_t *dst, long src_size);
  51 void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, long src_size);
  52 void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, long src_size);
  53
  54 void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  55                    long width, long height,
  56                    long lumStride, long chromStride, long dstStride);
  57 void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  58                    long width, long height,
  59                    long lumStride, long chromStride, long dstStride);
  60 void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  61                       long width, long height,
  62                       long lumStride, long chromStride, long dstStride);
  63 void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc, const uint8_t *vsrc, uint8_t *dst,
  64                       long width, long height,
  65                       long lumStride, long chromStride, long dstStride);
  66 void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
  67                    long width, long height,
  68                    long lumStride, long chromStride, long srcStride);
  69 void (*rgb24toyv12)(const uint8_t *src, uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
  70                     long width, long height,
  71                     long lumStride, long chromStride, long srcStride);
  72 void (*planar2x)(const uint8_t *src, uint8_t *dst, long width, long height,
  73                  long srcStride, long dstStride);
  74 void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
  75                         long width, long height, long src1Stride,
  76                         long src2Stride, long dstStride);
  77 void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
  78                     uint8_t *dst1, uint8_t *dst2,
  79                     long width, long height,
  80                     long srcStride1, long srcStride2,
  81                     long dstStride1, long dstStride2);
  82 void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2, const uint8_t *src3,
  83                      uint8_t *dst,
  84                      long width, long height,
  85                      long srcStride1, long srcStride2,
  86                      long srcStride3, long dstStride);
  87 void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
  88                      long width, long height,
  89                      long lumStride, long chromStride, long srcStride);
  90 void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
  91                      long width, long height,
  92                      long lumStride, long chromStride, long srcStride);
  93 void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
  94                      long width, long height,
  95                      long lumStride, long chromStride, long srcStride);
  96 void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst, const uint8_t *src,
  97                      long width, long height,
  98                      long lumStride, long chromStride, long srcStride);
  99
 100
 101 #if ARCH_X86
 102 DECLARE_ASM_CONST(8, uint64_t, mmx_null)     = 0x0000000000000000ULL;
 103 DECLARE_ASM_CONST(8, uint64_t, mmx_one)      = 0xFFFFFFFFFFFFFFFFULL;
 104 DECLARE_ASM_CONST(8, uint64_t, mask32b)      = 0x000000FF000000FFULL;
 105 DECLARE_ASM_CONST(8, uint64_t, mask32g)      = 0x0000FF000000FF00ULL;
 106 DECLARE_ASM_CONST(8, uint64_t, mask32r)      = 0x00FF000000FF0000ULL;
 107 DECLARE_ASM_CONST(8, uint64_t, mask32a)      = 0xFF000000FF000000ULL;
 108 DECLARE_ASM_CONST(8, uint64_t, mask32)       = 0x00FFFFFF00FFFFFFULL;
 109 DECLARE_ASM_CONST(8, uint64_t, mask3216br)   = 0x00F800F800F800F8ULL;
 110 DECLARE_ASM_CONST(8, uint64_t, mask3216g)    = 0x0000FC000000FC00ULL;
 111 DECLARE_ASM_CONST(8, uint64_t, mask3215g)    = 0x0000F8000000F800ULL;
 112 DECLARE_ASM_CONST(8, uint64_t, mul3216)      = 0x2000000420000004ULL;
 113 DECLARE_ASM_CONST(8, uint64_t, mul3215)      = 0x2000000820000008ULL;
 114 DECLARE_ASM_CONST(8, uint64_t, mask24b)      = 0x00FF0000FF0000FFULL;
 115 DECLARE_ASM_CONST(8, uint64_t, mask24g)      = 0xFF0000FF0000FF00ULL;
 116 DECLARE_ASM_CONST(8, uint64_t, mask24r)      = 0x0000FF0000FF0000ULL;
 117 DECLARE_ASM_CONST(8, uint64_t, mask24l)      = 0x0000000000FFFFFFULL;
 118 DECLARE_ASM_CONST(8, uint64_t, mask24h)      = 0x0000FFFFFF000000ULL;
 119 DECLARE_ASM_CONST(8, uint64_t, mask24hh)     = 0xffff000000000000ULL;
 120 DECLARE_ASM_CONST(8, uint64_t, mask24hhh)    = 0xffffffff00000000ULL;
 121 DECLARE_ASM_CONST(8, uint64_t, mask24hhhh)   = 0xffffffffffff0000ULL;
 122 DECLARE_ASM_CONST(8, uint64_t, mask15b)      = 0x001F001F001F001FULL; /* 00000000 00011111  xxB */
 123 DECLARE_ASM_CONST(8, uint64_t, mask15rg)     = 0x7FE07FE07FE07FE0ULL; /* 01111111 11100000  RGx */
 124 DECLARE_ASM_CONST(8, uint64_t, mask15s)      = 0xFFE0FFE0FFE0FFE0ULL;
 125 DECLARE_ASM_CONST(8, uint64_t, mask15g)      = 0x03E003E003E003E0ULL;
 126 DECLARE_ASM_CONST(8, uint64_t, mask15r)      = 0x7C007C007C007C00ULL;
 127 #define mask16b mask15b
 128 DECLARE_ASM_CONST(8, uint64_t, mask16g)      = 0x07E007E007E007E0ULL;
 129 DECLARE_ASM_CONST(8, uint64_t, mask16r)      = 0xF800F800F800F800ULL;
 130 DECLARE_ASM_CONST(8, uint64_t, red_16mask)   = 0x0000f8000000f800ULL;
 131 DECLARE_ASM_CONST(8, uint64_t, green_16mask) = 0x000007e0000007e0ULL;
 132 DECLARE_ASM_CONST(8, uint64_t, blue_16mask)  = 0x0000001f0000001fULL;
 133 DECLARE_ASM_CONST(8, uint64_t, red_15mask)   = 0x00007c0000007c00ULL;
 134 DECLARE_ASM_CONST(8, uint64_t, green_15mask) = 0x000003e0000003e0ULL;
 135 DECLARE_ASM_CONST(8, uint64_t, blue_15mask)  = 0x0000001f0000001fULL;
 136 #endif /* ARCH_X86 */
 137
 138 #define RGB2YUV_SHIFT 8
 139 #define BY ((int)( 0.098*(1<<RGB2YUV_SHIFT)+0.5))
 140 #define BV ((int)(-0.071*(1<<RGB2YUV_SHIFT)+0.5))
 141 #define BU ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 142 #define GY ((int)( 0.504*(1<<RGB2YUV_SHIFT)+0.5))
 143 #define GV ((int)(-0.368*(1<<RGB2YUV_SHIFT)+0.5))
 144 #define GU ((int)(-0.291*(1<<RGB2YUV_SHIFT)+0.5))
 145 #define RY ((int)( 0.257*(1<<RGB2YUV_SHIFT)+0.5))
 146 #define RV ((int)( 0.439*(1<<RGB2YUV_SHIFT)+0.5))
 147 #define RU ((int)(-0.148*(1<<RGB2YUV_SHIFT)+0.5))
 148
 149 //Note: We have C, MMX, MMX2, 3DNOW versions, there is no 3DNOW + MMX2 one.
 150 //plain C versions
 151 #undef HAVE_MMX
 152 #undef HAVE_MMX2
 153 #undef HAVE_AMD3DNOW
 154 #undef HAVE_SSE2
 155 #define HAVE_MMX 0
 156 #define HAVE_MMX2 0
 157 #define HAVE_AMD3DNOW 0
 158 #define HAVE_SSE2 0
 159 #define RENAME(a) a ## _C
 160 #include "rgb2rgb_template.c"
 161
 162 #if ARCH_X86
 163
 164 //MMX versions
 165 #undef RENAME
 166 #undef HAVE_MMX
 167 #define HAVE_MMX 1
 168 #define RENAME(a) a ## _MMX
 169 #include "rgb2rgb_template.c"
 170
 171 //MMX2 versions
 172 #undef RENAME
 173 #undef HAVE_MMX2
 174 #define HAVE_MMX2 1
 175 #define RENAME(a) a ## _MMX2
 176 #include "rgb2rgb_template.c"
 177
 178 //3DNOW versions
 179 #undef RENAME
 180 #undef HAVE_MMX2
 181 #undef HAVE_AMD3DNOW
 182 #define HAVE_MMX2 0
 183 #define HAVE_AMD3DNOW 1
 184 #define RENAME(a) a ## _3DNOW
 185 #include "rgb2rgb_template.c"
 186
 187 #endif //ARCH_X86 || ARCH_X86_64
 188
 189 /*
 190  RGB15->RGB16 original by Strepto/Astral
 191  ported to gcc & bugfixed : A'rpi
 192  MMX2, 3DNOW optimization by Nick Kurshev
 193  32-bit C version, and and&add trick by Michael Niedermayer
 194 */
 195
 196 void sws_rgb2rgb_init(int flags)
 197 {
 198 #if HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX
 199     if (flags & SWS_CPU_CAPS_MMX2)
 200         rgb2rgb_init_MMX2();
 201     else if (flags & SWS_CPU_CAPS_3DNOW)
 202         rgb2rgb_init_3DNOW();
 203     else if (flags & SWS_CPU_CAPS_MMX)
 204         rgb2rgb_init_MMX();
 205     else
 206 #endif /* HAVE_MMX2 || HAVE_AMD3DNOW || HAVE_MMX */
 207         rgb2rgb_init_C();
 208 }
 209
 210 /**
 211  * Convert the palette to the same packet 32-bit format as the palette
 212  */
 213 void palette8topacked32(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 214 {
 215     long i;
 216
 217     for (i=0; i<num_pixels; i++)
 218         ((uint32_t *) dst)[i] = ((const uint32_t *) palette)[src[i]];
 219 }
 220
 221 /**
 222  * Palette format: ABCD -> dst format: ABC
 223  */
 224 void palette8topacked24(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 225 {
 226     long i;
 227
 228     for (i=0; i<num_pixels; i++) {
 229         //FIXME slow?
 230         dst[0]= palette[src[i]*4+0];
 231         dst[1]= palette[src[i]*4+1];
 232         dst[2]= palette[src[i]*4+2];
 233         dst+= 3;
 234     }
 235 }
 236
 237 /**
 238  * Palette is assumed to contain BGR16, see rgb32to16 to convert the palette.
 239  */
 240 void palette8torgb16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 241 {
 242     long i;
 243     for (i=0; i<num_pixels; i++)
 244         ((uint16_t *)dst)[i] = ((const uint16_t *)palette)[src[i]];
 245 }
 246 void palette8tobgr16(const uint8_t *src, uint8_t *dst, long num_pixels, const uint8_t *palette)
 247 {
 248     long i;
 249     for (i=0; i<num_pixels; i++)
 250         ((uint16_t *)dst)[i] = bswap_16(((const uint16_t *)palette)[src[i]]);
 251 }
 252
 253 void rgb32to24(const uint8_t *src, uint8_t *dst, long src_size)
 254 {
 255     long i;
 256     long num_pixels = src_size >> 2;
 257     for (i=0; i<num_pixels; i++) {
 258 #if HAVE_BIGENDIAN
 259         /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
 260         dst[3*i + 0] = src[4*i + 1];
 261         dst[3*i + 1] = src[4*i + 2];
 262         dst[3*i + 2] = src[4*i + 3];
 263 #else
 264         dst[3*i + 0] = src[4*i + 2];
 265         dst[3*i + 1] = src[4*i + 1];
 266         dst[3*i + 2] = src[4*i + 0];
 267 #endif
 268     }
 269 }
 270
 271 void rgb24to32(const uint8_t *src, uint8_t *dst, long src_size)
 272 {
 273     long i;
 274     for (i=0; 3*i<src_size; i++) {
 275 #if HAVE_BIGENDIAN
 276         /* RGB24 (= R,G,B) -> BGR32 (= A,R,G,B) */
 277         dst[4*i + 0] = 255;
 278         dst[4*i + 1] = src[3*i + 0];
 279         dst[4*i + 2] = src[3*i + 1];
 280         dst[4*i + 3] = src[3*i + 2];
 281 #else
 282         dst[4*i + 0] = src[3*i + 2];
 283         dst[4*i + 1] = src[3*i + 1];
 284         dst[4*i + 2] = src[3*i + 0];
 285         dst[4*i + 3] = 255;
 286 #endif
 287     }
 288 }
 289
 290 void rgb16tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
 291 {
 292     const uint16_t *end;
 293     uint8_t *d = dst;
 294     const uint16_t *s = (const uint16_t *)src;
 295     end = s + src_size/2;
 296     while (s < end) {
 297         register uint16_t bgr;
 298         bgr = *s++;
 299 #if HAVE_BIGENDIAN
 300         *d++ = 255;
 301         *d++ = (bgr&0x1F)<<3;
 302         *d++ = (bgr&0x7E0)>>3;
 303         *d++ = (bgr&0xF800)>>8;
 304 #else
 305         *d++ = (bgr&0xF800)>>8;
 306         *d++ = (bgr&0x7E0)>>3;
 307         *d++ = (bgr&0x1F)<<3;
 308         *d++ = 255;
 309 #endif
 310     }
 311 }
 312
 313 void rgb16to24(const uint8_t *src, uint8_t *dst, long src_size)
 314 {
 315     const uint16_t *end;
 316     uint8_t *d = dst;
 317     const uint16_t *s = (const uint16_t *)src;
 318     end = s + src_size/2;
 319     while (s < end) {
 320         register uint16_t bgr;
 321         bgr = *s++;
 322         *d++ = (bgr&0xF800)>>8;
 323         *d++ = (bgr&0x7E0)>>3;
 324         *d++ = (bgr&0x1F)<<3;
 325     }
 326 }
 327
 328 void rgb16tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
 329 {
 330     long i;
 331     long num_pixels = src_size >> 1;
 332
 333     for (i=0; i<num_pixels; i++) {
 334         unsigned rgb = ((const uint16_t*)src)[i];
 335         ((uint16_t*)dst)[i] = (rgb>>11) | (rgb&0x7E0) | (rgb<<11);
 336     }
 337 }
 338
 339 void rgb16tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
 340 {
 341     long i;
 342     long num_pixels = src_size >> 1;
 343
 344     for (i=0; i<num_pixels; i++) {
 345         unsigned rgb = ((const uint16_t*)src)[i];
 346         ((uint16_t*)dst)[i] = (rgb>>11) | ((rgb&0x7C0)>>1) | ((rgb&0x1F)<<10);
 347     }
 348 }
 349
 350 void rgb15tobgr32(const uint8_t *src, uint8_t *dst, long src_size)
 351 {
 352     const uint16_t *end;
 353     uint8_t *d = dst;
 354     const uint16_t *s = (const uint16_t *)src;
 355     end = s + src_size/2;
 356     while (s < end) {
 357         register uint16_t bgr;
 358         bgr = *s++;
 359 #if HAVE_BIGENDIAN
 360         *d++ = 255;
 361         *d++ = (bgr&0x1F)<<3;
 362         *d++ = (bgr&0x3E0)>>2;
 363         *d++ = (bgr&0x7C00)>>7;
 364 #else
 365         *d++ = (bgr&0x7C00)>>7;
 366         *d++ = (bgr&0x3E0)>>2;
 367         *d++ = (bgr&0x1F)<<3;
 368         *d++ = 255;
 369 #endif
 370     }
 371 }
 372
 373 void rgb15to24(const uint8_t *src, uint8_t *dst, long src_size)
 374 {
 375     const uint16_t *end;
 376     uint8_t *d = dst;
 377     const uint16_t *s = (const uint16_t *)src;
 378     end = s + src_size/2;
 379     while (s < end) {
 380         register uint16_t bgr;
 381         bgr = *s++;
 382         *d++ = (bgr&0x7C00)>>7;
 383         *d++ = (bgr&0x3E0)>>2;
 384         *d++ = (bgr&0x1F)<<3;
 385     }
 386 }
 387
 388 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, long src_size)
 389 {
 390     long i;
 391     long num_pixels = src_size >> 1;
 392
 393     for (i=0; i<num_pixels; i++) {
 394         unsigned rgb = ((const uint16_t*)src)[i];
 395         ((uint16_t*)dst)[i] = ((rgb&0x7C00)>>10) | ((rgb&0x3E0)<<1) | (rgb<<11);
 396     }
 397 }
 398
 399 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, long src_size)
 400 {
 401     long i;
 402     long num_pixels = src_size >> 1;
 403
 404     for (i=0; i<num_pixels; i++) {
 405         unsigned br;
 406         unsigned rgb = ((const uint16_t*)src)[i];
 407         br = rgb&0x7c1F;
 408         ((uint16_t*)dst)[i] = (br>>10) | (rgb&0x3E0) | (br<<10);
 409     }
 410 }
 411
 412 void bgr8torgb8(const uint8_t *src, uint8_t *dst, long src_size)
 413 {
 414     long i;
 415     long num_pixels = src_size;
 416     for (i=0; i<num_pixels; i++) {
 417         unsigned b,g,r;
 418         register uint8_t rgb;
 419         rgb = src[i];
 420         r = (rgb&0x07);
 421         g = (rgb&0x38)>>3;
 422         b = (rgb&0xC0)>>6;
 423         dst[i] = ((b<<1)&0x07) | ((g&0x07)<<3) | ((r&0x03)<<6);
 424     }
 425 }
 426
 427 #define DEFINE_SHUFFLE_BYTES(a, b, c, d)                                \
 428 void shuffle_bytes_##a##b##c##d(const uint8_t *src, uint8_t *dst, long src_size) \
 429 {                                                                       \
 430     long i;                                                             \
 431                                                                         \
 432     for (i = 0; i < src_size; i+=4) {                                   \
 433         dst[i + 0] = src[i + a];                                        \
 434         dst[i + 1] = src[i + b];                                        \
 435         dst[i + 2] = src[i + c];                                        \
 436         dst[i + 3] = src[i + d];                                        \
 437     }                                                                   \
 438 }
 439
 440 DEFINE_SHUFFLE_BYTES(0, 3, 2, 1);
 441 DEFINE_SHUFFLE_BYTES(1, 2, 3, 0);
 442 DEFINE_SHUFFLE_BYTES(2, 1, 0, 3);
 443 DEFINE_SHUFFLE_BYTES(3, 0, 1, 2);
 444 DEFINE_SHUFFLE_BYTES(3, 2, 1, 0);
 445