annotate ffmpeg/libswscale/rgb2rgb.c @ 13:844d341cf643 tip

Back up before ISMIR
author Yading Song <yading.song@eecs.qmul.ac.uk>
date Thu, 31 Oct 2013 13:17:06 +0000
parents f445c3017523
children
rev   line source
yading@11 1 /*
yading@11 2 * software RGB to RGB converter
yading@11 3 * pluralize by software PAL8 to RGB converter
yading@11 4 * software YUV to YUV converter
yading@11 5 * software YUV to RGB converter
yading@11 6 * Written by Nick Kurshev.
yading@11 7 * palette & YUV & runtime CPU stuff by Michael (michaelni@gmx.at)
yading@11 8 *
yading@11 9 * This file is part of FFmpeg.
yading@11 10 *
yading@11 11 * FFmpeg is free software; you can redistribute it and/or
yading@11 12 * modify it under the terms of the GNU Lesser General Public
yading@11 13 * License as published by the Free Software Foundation; either
yading@11 14 * version 2.1 of the License, or (at your option) any later version.
yading@11 15 *
yading@11 16 * FFmpeg is distributed in the hope that it will be useful,
yading@11 17 * but WITHOUT ANY WARRANTY; without even the implied warranty of
yading@11 18 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
yading@11 19 * Lesser General Public License for more details.
yading@11 20 *
yading@11 21 * You should have received a copy of the GNU Lesser General Public
yading@11 22 * License along with FFmpeg; if not, write to the Free Software
yading@11 23 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
yading@11 24 */
yading@11 25
yading@11 26 #include <inttypes.h>
yading@11 27
yading@11 28 #include "libavutil/attributes.h"
yading@11 29 #include "libavutil/bswap.h"
yading@11 30 #include "config.h"
yading@11 31 #include "rgb2rgb.h"
yading@11 32 #include "swscale.h"
yading@11 33 #include "swscale_internal.h"
yading@11 34
yading@11 35 void (*rgb32tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 36 void (*rgb32tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 37 void (*rgb32tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 38 void (*rgb24tobgr32)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 39 void (*rgb24tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 40 void (*rgb24tobgr16)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 41 void (*rgb24tobgr15)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 42 void (*rgb16tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 43 void (*rgb15tobgr24)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 44
yading@11 45 void (*rgb32to16)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 46 void (*rgb32to15)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 47 void (*rgb24to16)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 48 void (*rgb24to15)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 49 void (*rgb16to32)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 50 void (*rgb16to15)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 51 void (*rgb15to16)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 52 void (*rgb15to32)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 53
yading@11 54 void (*shuffle_bytes_2103)(const uint8_t *src, uint8_t *dst, int src_size);
yading@11 55
yading@11 56 void (*yv12toyuy2)(const uint8_t *ysrc, const uint8_t *usrc,
yading@11 57 const uint8_t *vsrc, uint8_t *dst,
yading@11 58 int width, int height,
yading@11 59 int lumStride, int chromStride, int dstStride);
yading@11 60 void (*yv12touyvy)(const uint8_t *ysrc, const uint8_t *usrc,
yading@11 61 const uint8_t *vsrc, uint8_t *dst,
yading@11 62 int width, int height,
yading@11 63 int lumStride, int chromStride, int dstStride);
yading@11 64 void (*yuv422ptoyuy2)(const uint8_t *ysrc, const uint8_t *usrc,
yading@11 65 const uint8_t *vsrc, uint8_t *dst,
yading@11 66 int width, int height,
yading@11 67 int lumStride, int chromStride, int dstStride);
yading@11 68 void (*yuv422ptouyvy)(const uint8_t *ysrc, const uint8_t *usrc,
yading@11 69 const uint8_t *vsrc, uint8_t *dst,
yading@11 70 int width, int height,
yading@11 71 int lumStride, int chromStride, int dstStride);
yading@11 72 void (*yuy2toyv12)(const uint8_t *src, uint8_t *ydst,
yading@11 73 uint8_t *udst, uint8_t *vdst,
yading@11 74 int width, int height,
yading@11 75 int lumStride, int chromStride, int srcStride);
yading@11 76 void (*ff_rgb24toyv12)(const uint8_t *src, uint8_t *ydst,
yading@11 77 uint8_t *udst, uint8_t *vdst,
yading@11 78 int width, int height,
yading@11 79 int lumStride, int chromStride, int srcStride,
yading@11 80 int32_t *rgb2yuv);
yading@11 81 void (*planar2x)(const uint8_t *src, uint8_t *dst, int width, int height,
yading@11 82 int srcStride, int dstStride);
yading@11 83 void (*interleaveBytes)(const uint8_t *src1, const uint8_t *src2, uint8_t *dst,
yading@11 84 int width, int height, int src1Stride,
yading@11 85 int src2Stride, int dstStride);
yading@11 86 void (*vu9_to_vu12)(const uint8_t *src1, const uint8_t *src2,
yading@11 87 uint8_t *dst1, uint8_t *dst2,
yading@11 88 int width, int height,
yading@11 89 int srcStride1, int srcStride2,
yading@11 90 int dstStride1, int dstStride2);
yading@11 91 void (*yvu9_to_yuy2)(const uint8_t *src1, const uint8_t *src2,
yading@11 92 const uint8_t *src3, uint8_t *dst,
yading@11 93 int width, int height,
yading@11 94 int srcStride1, int srcStride2,
yading@11 95 int srcStride3, int dstStride);
yading@11 96 void (*uyvytoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
yading@11 97 const uint8_t *src, int width, int height,
yading@11 98 int lumStride, int chromStride, int srcStride);
yading@11 99 void (*uyvytoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
yading@11 100 const uint8_t *src, int width, int height,
yading@11 101 int lumStride, int chromStride, int srcStride);
yading@11 102 void (*yuyvtoyuv420)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
yading@11 103 const uint8_t *src, int width, int height,
yading@11 104 int lumStride, int chromStride, int srcStride);
yading@11 105 void (*yuyvtoyuv422)(uint8_t *ydst, uint8_t *udst, uint8_t *vdst,
yading@11 106 const uint8_t *src, int width, int height,
yading@11 107 int lumStride, int chromStride, int srcStride);
yading@11 108
yading@11 109 #define BY ((int)( 0.098 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 110 #define BV ((int)(-0.071 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 111 #define BU ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 112 #define GY ((int)( 0.504 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 113 #define GV ((int)(-0.368 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 114 #define GU ((int)(-0.291 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 115 #define RY ((int)( 0.257 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 116 #define RV ((int)( 0.439 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 117 #define RU ((int)(-0.148 * (1 << RGB2YUV_SHIFT) + 0.5))
yading@11 118
yading@11 119 //plain C versions
yading@11 120 #include "rgb2rgb_template.c"
yading@11 121
yading@11 122 /*
yading@11 123 * RGB15->RGB16 original by Strepto/Astral
yading@11 124 * ported to gcc & bugfixed : A'rpi
yading@11 125 * MMXEXT, 3DNOW optimization by Nick Kurshev
yading@11 126 * 32-bit C version, and and&add trick by Michael Niedermayer
yading@11 127 */
yading@11 128
yading@11 129 av_cold void sws_rgb2rgb_init(void)
yading@11 130 {
yading@11 131 rgb2rgb_init_c();
yading@11 132 if (HAVE_MMX)
yading@11 133 rgb2rgb_init_x86();
yading@11 134 }
yading@11 135
yading@11 136 void rgb32to24(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 137 {
yading@11 138 int i, num_pixels = src_size >> 2;
yading@11 139
yading@11 140 for (i = 0; i < num_pixels; i++) {
yading@11 141 #if HAVE_BIGENDIAN
yading@11 142 /* RGB32 (= A,B,G,R) -> BGR24 (= B,G,R) */
yading@11 143 dst[3 * i + 0] = src[4 * i + 1];
yading@11 144 dst[3 * i + 1] = src[4 * i + 2];
yading@11 145 dst[3 * i + 2] = src[4 * i + 3];
yading@11 146 #else
yading@11 147 dst[3 * i + 0] = src[4 * i + 2];
yading@11 148 dst[3 * i + 1] = src[4 * i + 1];
yading@11 149 dst[3 * i + 2] = src[4 * i + 0];
yading@11 150 #endif
yading@11 151 }
yading@11 152 }
yading@11 153
yading@11 154 void rgb24to32(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 155 {
yading@11 156 int i;
yading@11 157
yading@11 158 for (i = 0; 3 * i < src_size; i++) {
yading@11 159 #if HAVE_BIGENDIAN
yading@11 160 /* RGB24 (= R, G, B) -> BGR32 (= A, R, G, B) */
yading@11 161 dst[4 * i + 0] = 255;
yading@11 162 dst[4 * i + 1] = src[3 * i + 0];
yading@11 163 dst[4 * i + 2] = src[3 * i + 1];
yading@11 164 dst[4 * i + 3] = src[3 * i + 2];
yading@11 165 #else
yading@11 166 dst[4 * i + 0] = src[3 * i + 2];
yading@11 167 dst[4 * i + 1] = src[3 * i + 1];
yading@11 168 dst[4 * i + 2] = src[3 * i + 0];
yading@11 169 dst[4 * i + 3] = 255;
yading@11 170 #endif
yading@11 171 }
yading@11 172 }
yading@11 173
yading@11 174 void rgb16tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 175 {
yading@11 176 uint8_t *d = dst;
yading@11 177 const uint16_t *s = (const uint16_t *)src;
yading@11 178 const uint16_t *end = s + src_size / 2;
yading@11 179
yading@11 180 while (s < end) {
yading@11 181 register uint16_t bgr = *s++;
yading@11 182 #if HAVE_BIGENDIAN
yading@11 183 *d++ = 255;
yading@11 184 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 185 *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
yading@11 186 *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
yading@11 187 #else
yading@11 188 *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
yading@11 189 *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
yading@11 190 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 191 *d++ = 255;
yading@11 192 #endif
yading@11 193 }
yading@11 194 }
yading@11 195
yading@11 196 void rgb12to15(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 197 {
yading@11 198 uint16_t rgb, r, g, b;
yading@11 199 uint16_t *d = (uint16_t *)dst;
yading@11 200 const uint16_t *s = (const uint16_t *)src;
yading@11 201 const uint16_t *end = s + src_size / 2;
yading@11 202
yading@11 203 while (s < end) {
yading@11 204 rgb = *s++;
yading@11 205 r = rgb & 0xF00;
yading@11 206 g = rgb & 0x0F0;
yading@11 207 b = rgb & 0x00F;
yading@11 208 r = (r << 3) | ((r & 0x800) >> 1);
yading@11 209 g = (g << 2) | ((g & 0x080) >> 2);
yading@11 210 b = (b << 1) | ( b >> 3);
yading@11 211 *d++ = r | g | b;
yading@11 212 }
yading@11 213 }
yading@11 214
yading@11 215 void rgb16to24(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 216 {
yading@11 217 uint8_t *d = dst;
yading@11 218 const uint16_t *s = (const uint16_t *)src;
yading@11 219 const uint16_t *end = s + src_size / 2;
yading@11 220
yading@11 221 while (s < end) {
yading@11 222 register uint16_t bgr = *s++;
yading@11 223 *d++ = ((bgr&0xF800)>>8) | ((bgr&0xF800)>>13);
yading@11 224 *d++ = ((bgr&0x07E0)>>3) | ((bgr&0x07E0)>> 9);
yading@11 225 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 226 }
yading@11 227 }
yading@11 228
yading@11 229 void rgb16tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 230 {
yading@11 231 int i, num_pixels = src_size >> 1;
yading@11 232
yading@11 233 for (i = 0; i < num_pixels; i++) {
yading@11 234 unsigned rgb = ((const uint16_t *)src)[i];
yading@11 235 ((uint16_t *)dst)[i] = (rgb >> 11) | (rgb & 0x7E0) | (rgb << 11);
yading@11 236 }
yading@11 237 }
yading@11 238
yading@11 239 void rgb16tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 240 {
yading@11 241 int i, num_pixels = src_size >> 1;
yading@11 242
yading@11 243 for (i = 0; i < num_pixels; i++) {
yading@11 244 unsigned rgb = ((const uint16_t *)src)[i];
yading@11 245 ((uint16_t *)dst)[i] = (rgb >> 11) | ((rgb & 0x7C0) >> 1) | ((rgb & 0x1F) << 10);
yading@11 246 }
yading@11 247 }
yading@11 248
yading@11 249 void rgb15tobgr32(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 250 {
yading@11 251 uint8_t *d = dst;
yading@11 252 const uint16_t *s = (const uint16_t *)src;
yading@11 253 const uint16_t *end = s + src_size / 2;
yading@11 254
yading@11 255 while (s < end) {
yading@11 256 register uint16_t bgr = *s++;
yading@11 257 #if HAVE_BIGENDIAN
yading@11 258 *d++ = 255;
yading@11 259 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 260 *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
yading@11 261 *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
yading@11 262 #else
yading@11 263 *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
yading@11 264 *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
yading@11 265 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 266 *d++ = 255;
yading@11 267 #endif
yading@11 268 }
yading@11 269 }
yading@11 270
yading@11 271 void rgb15to24(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 272 {
yading@11 273 uint8_t *d = dst;
yading@11 274 const uint16_t *s = (const uint16_t *)src;
yading@11 275 const uint16_t *end = s + src_size / 2;
yading@11 276
yading@11 277 while (s < end) {
yading@11 278 register uint16_t bgr = *s++;
yading@11 279 *d++ = ((bgr&0x7C00)>>7) | ((bgr&0x7C00)>>12);
yading@11 280 *d++ = ((bgr&0x03E0)>>2) | ((bgr&0x03E0)>> 7);
yading@11 281 *d++ = ((bgr&0x001F)<<3) | ((bgr&0x001F)>> 2);
yading@11 282 }
yading@11 283 }
yading@11 284
yading@11 285 void rgb15tobgr16(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 286 {
yading@11 287 int i, num_pixels = src_size >> 1;
yading@11 288
yading@11 289 for (i = 0; i < num_pixels; i++) {
yading@11 290 unsigned rgb = ((const uint16_t *)src)[i];
yading@11 291 ((uint16_t *)dst)[i] = ((rgb & 0x7C00) >> 10) | ((rgb & 0x3E0) << 1) | (rgb << 11);
yading@11 292 }
yading@11 293 }
yading@11 294
yading@11 295 void rgb15tobgr15(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 296 {
yading@11 297 int i, num_pixels = src_size >> 1;
yading@11 298
yading@11 299 for (i = 0; i < num_pixels; i++) {
yading@11 300 unsigned rgb = ((const uint16_t *)src)[i];
yading@11 301 unsigned br = rgb & 0x7C1F;
yading@11 302 ((uint16_t *)dst)[i] = (br >> 10) | (rgb & 0x3E0) | (br << 10);
yading@11 303 }
yading@11 304 }
yading@11 305
yading@11 306 void rgb12tobgr12(const uint8_t *src, uint8_t *dst, int src_size)
yading@11 307 {
yading@11 308 uint16_t *d = (uint16_t *)dst;
yading@11 309 uint16_t *s = (uint16_t *)src;
yading@11 310 int i, num_pixels = src_size >> 1;
yading@11 311
yading@11 312 for (i = 0; i < num_pixels; i++) {
yading@11 313 unsigned rgb = s[i];
yading@11 314 d[i] = (rgb << 8 | rgb & 0xF0 | rgb >> 8) & 0xFFF;
yading@11 315 }
yading@11 316 }
yading@11 317
yading@11 318
yading@11 319 #define DEFINE_SHUFFLE_BYTES(a, b, c, d) \
yading@11 320 void shuffle_bytes_ ## a ## b ## c ## d(const uint8_t *src, \
yading@11 321 uint8_t *dst, int src_size) \
yading@11 322 { \
yading@11 323 int i; \
yading@11 324 \
yading@11 325 for (i = 0; i < src_size; i += 4) { \
yading@11 326 dst[i + 0] = src[i + a]; \
yading@11 327 dst[i + 1] = src[i + b]; \
yading@11 328 dst[i + 2] = src[i + c]; \
yading@11 329 dst[i + 3] = src[i + d]; \
yading@11 330 } \
yading@11 331 }
yading@11 332
yading@11 333 DEFINE_SHUFFLE_BYTES(0, 3, 2, 1)
yading@11 334 DEFINE_SHUFFLE_BYTES(1, 2, 3, 0)
yading@11 335 DEFINE_SHUFFLE_BYTES(3, 0, 1, 2)
yading@11 336 DEFINE_SHUFFLE_BYTES(3, 2, 1, 0)
yading@11 337
yading@11 338 #define DEFINE_RGB48TOBGR48(need_bswap, swap) \
yading@11 339 void rgb48tobgr48_ ## need_bswap(const uint8_t *src, \
yading@11 340 uint8_t *dst, int src_size) \
yading@11 341 { \
yading@11 342 uint16_t *d = (uint16_t *)dst; \
yading@11 343 uint16_t *s = (uint16_t *)src; \
yading@11 344 int i, num_pixels = src_size >> 1; \
yading@11 345 \
yading@11 346 for (i = 0; i < num_pixels; i += 3) { \
yading@11 347 d[i ] = swap ? av_bswap16(s[i + 2]) : s[i + 2]; \
yading@11 348 d[i + 1] = swap ? av_bswap16(s[i + 1]) : s[i + 1]; \
yading@11 349 d[i + 2] = swap ? av_bswap16(s[i ]) : s[i ]; \
yading@11 350 } \
yading@11 351 }
yading@11 352
yading@11 353 DEFINE_RGB48TOBGR48(nobswap, 0)
yading@11 354 DEFINE_RGB48TOBGR48(bswap, 1)
yading@11 355
yading@11 356 #define DEFINE_RGB64TOBGR48(need_bswap, swap) \
yading@11 357 void rgb64tobgr48_ ## need_bswap(const uint8_t *src, \
yading@11 358 uint8_t *dst, int src_size) \
yading@11 359 { \
yading@11 360 uint16_t *d = (uint16_t *)dst; \
yading@11 361 uint16_t *s = (uint16_t *)src; \
yading@11 362 int i, num_pixels = src_size >> 3; \
yading@11 363 \
yading@11 364 for (i = 0; i < num_pixels; i++) { \
yading@11 365 d[3 * i ] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2]; \
yading@11 366 d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1]; \
yading@11 367 d[3 * i + 2] = swap ? av_bswap16(s[4 * i ]) : s[4 * i ]; \
yading@11 368 } \
yading@11 369 }
yading@11 370
yading@11 371 DEFINE_RGB64TOBGR48(nobswap, 0)
yading@11 372 DEFINE_RGB64TOBGR48(bswap, 1)
yading@11 373
yading@11 374 #define DEFINE_RGB64TO48(need_bswap, swap) \
yading@11 375 void rgb64to48_ ## need_bswap(const uint8_t *src, \
yading@11 376 uint8_t *dst, int src_size) \
yading@11 377 { \
yading@11 378 uint16_t *d = (uint16_t *)dst; \
yading@11 379 uint16_t *s = (uint16_t *)src; \
yading@11 380 int i, num_pixels = src_size >> 3; \
yading@11 381 \
yading@11 382 for (i = 0; i < num_pixels; i++) { \
yading@11 383 d[3 * i ] = swap ? av_bswap16(s[4 * i ]) : s[4 * i ]; \
yading@11 384 d[3 * i + 1] = swap ? av_bswap16(s[4 * i + 1]) : s[4 * i + 1]; \
yading@11 385 d[3 * i + 2] = swap ? av_bswap16(s[4 * i + 2]) : s[4 * i + 2]; \
yading@11 386 } \
yading@11 387 }
yading@11 388
yading@11 389 DEFINE_RGB64TO48(nobswap, 0)
yading@11 390 DEFINE_RGB64TO48(bswap, 1)