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00026 #include <stdio.h>
00027 #include <stdlib.h>
00028 #include <inttypes.h>
00029 #include <assert.h>
00030
00031 #include "config.h"
00032 #include "rgb2rgb.h"
00033 #include "swscale.h"
00034 #include "swscale_internal.h"
00035 #include "libavutil/cpu.h"
00036 #include "libavutil/bswap.h"
00037 #include "libavutil/pixdesc.h"
00038
00039 extern const uint8_t dither_4x4_16[4][8];
00040 extern const uint8_t dither_8x8_32[8][8];
00041 extern const uint8_t dither_8x8_73[8][8];
00042 extern const uint8_t dither_8x8_220[8][8];
00043
00044 const int32_t ff_yuv2rgb_coeffs[8][4] = {
00045 {117504, 138453, 13954, 34903},
00046 {117504, 138453, 13954, 34903},
00047 {104597, 132201, 25675, 53279},
00048 {104597, 132201, 25675, 53279},
00049 {104448, 132798, 24759, 53109},
00050 {104597, 132201, 25675, 53279},
00051 {104597, 132201, 25675, 53279},
00052 {117579, 136230, 16907, 35559}
00053 };
00054
00055 const int *sws_getCoefficients(int colorspace)
00056 {
00057 if (colorspace > 7 || colorspace < 0)
00058 colorspace = SWS_CS_DEFAULT;
00059 return ff_yuv2rgb_coeffs[colorspace];
00060 }
00061
00062 #define LOADCHROMA(i) \
00063 U = pu[i]; \
00064 V = pv[i]; \
00065 r = (void *)c->table_rV[V]; \
00066 g = (void *)(c->table_gU[U] + c->table_gV[V]); \
00067 b = (void *)c->table_bU[U];
00068
00069 #define PUTRGB(dst,src,i) \
00070 Y = src[2*i]; \
00071 dst[2*i ] = r[Y] + g[Y] + b[Y]; \
00072 Y = src[2*i+1]; \
00073 dst[2*i+1] = r[Y] + g[Y] + b[Y];
00074
00075 #define PUTRGB24(dst,src,i) \
00076 Y = src[2*i]; \
00077 dst[6*i+0] = r[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = b[Y]; \
00078 Y = src[2*i+1]; \
00079 dst[6*i+3] = r[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = b[Y];
00080
00081 #define PUTBGR24(dst,src,i) \
00082 Y = src[2*i]; \
00083 dst[6*i+0] = b[Y]; dst[6*i+1] = g[Y]; dst[6*i+2] = r[Y]; \
00084 Y = src[2*i+1]; \
00085 dst[6*i+3] = b[Y]; dst[6*i+4] = g[Y]; dst[6*i+5] = r[Y];
00086
00087 #define PUTRGBA(dst,ysrc,asrc,i,s) \
00088 Y = ysrc[2*i]; \
00089 dst[2*i ] = r[Y] + g[Y] + b[Y] + (asrc[2*i ]<<s); \
00090 Y = ysrc[2*i+1]; \
00091 dst[2*i+1] = r[Y] + g[Y] + b[Y] + (asrc[2*i+1]<<s);
00092
00093 #define PUTRGB48(dst,src,i) \
00094 Y = src[2*i]; \
00095 dst[12*i+ 0] = dst[12*i+ 1] = r[Y]; \
00096 dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
00097 dst[12*i+ 4] = dst[12*i+ 5] = b[Y]; \
00098 Y = src[2*i+1]; \
00099 dst[12*i+ 6] = dst[12*i+ 7] = r[Y]; \
00100 dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
00101 dst[12*i+10] = dst[12*i+11] = b[Y];
00102
00103 #define PUTBGR48(dst,src,i) \
00104 Y = src[2*i]; \
00105 dst[12*i+ 0] = dst[12*i+ 1] = b[Y]; \
00106 dst[12*i+ 2] = dst[12*i+ 3] = g[Y]; \
00107 dst[12*i+ 4] = dst[12*i+ 5] = r[Y]; \
00108 Y = src[2*i+1]; \
00109 dst[12*i+ 6] = dst[12*i+ 7] = b[Y]; \
00110 dst[12*i+ 8] = dst[12*i+ 9] = g[Y]; \
00111 dst[12*i+10] = dst[12*i+11] = r[Y];
00112
00113 #define YUV2RGBFUNC(func_name, dst_type, alpha) \
00114 static int func_name(SwsContext *c, const uint8_t* src[], int srcStride[], int srcSliceY, \
00115 int srcSliceH, uint8_t* dst[], int dstStride[]) \
00116 {\
00117 int y;\
00118 \
00119 if (!alpha && c->srcFormat == PIX_FMT_YUV422P) {\
00120 srcStride[1] *= 2;\
00121 srcStride[2] *= 2;\
00122 }\
00123 for (y=0; y<srcSliceH; y+=2) {\
00124 dst_type *dst_1 = (dst_type*)(dst[0] + (y+srcSliceY )*dstStride[0]);\
00125 dst_type *dst_2 = (dst_type*)(dst[0] + (y+srcSliceY+1)*dstStride[0]);\
00126 dst_type av_unused *r, *b;\
00127 dst_type *g;\
00128 const uint8_t *py_1 = src[0] + y*srcStride[0];\
00129 const uint8_t *py_2 = py_1 + srcStride[0];\
00130 const uint8_t *pu = src[1] + (y>>1)*srcStride[1];\
00131 const uint8_t *pv = src[2] + (y>>1)*srcStride[2];\
00132 const uint8_t av_unused *pa_1, *pa_2;\
00133 unsigned int h_size = c->dstW>>3;\
00134 if (alpha) {\
00135 pa_1 = src[3] + y*srcStride[3];\
00136 pa_2 = pa_1 + srcStride[3];\
00137 }\
00138 while (h_size--) {\
00139 int av_unused U, V;\
00140 int Y;\
00141
00142 #define ENDYUV2RGBLINE(dst_delta)\
00143 pu += 4;\
00144 pv += 4;\
00145 py_1 += 8;\
00146 py_2 += 8;\
00147 dst_1 += dst_delta;\
00148 dst_2 += dst_delta;\
00149 }\
00150 if (c->dstW & 4) {\
00151 int av_unused Y, U, V;\
00152
00153 #define ENDYUV2RGBFUNC()\
00154 }\
00155 }\
00156 return srcSliceH;\
00157 }
00158
00159 #define CLOSEYUV2RGBFUNC(dst_delta)\
00160 ENDYUV2RGBLINE(dst_delta)\
00161 ENDYUV2RGBFUNC()
00162
00163 YUV2RGBFUNC(yuv2rgb_c_48, uint8_t, 0)
00164 LOADCHROMA(0);
00165 PUTRGB48(dst_1,py_1,0);
00166 PUTRGB48(dst_2,py_2,0);
00167
00168 LOADCHROMA(1);
00169 PUTRGB48(dst_2,py_2,1);
00170 PUTRGB48(dst_1,py_1,1);
00171
00172 LOADCHROMA(2);
00173 PUTRGB48(dst_1,py_1,2);
00174 PUTRGB48(dst_2,py_2,2);
00175
00176 LOADCHROMA(3);
00177 PUTRGB48(dst_2,py_2,3);
00178 PUTRGB48(dst_1,py_1,3);
00179 ENDYUV2RGBLINE(48)
00180 LOADCHROMA(0);
00181 PUTRGB48(dst_1,py_1,0);
00182 PUTRGB48(dst_2,py_2,0);
00183
00184 LOADCHROMA(1);
00185 PUTRGB48(dst_2,py_2,1);
00186 PUTRGB48(dst_1,py_1,1);
00187 ENDYUV2RGBFUNC()
00188
00189 YUV2RGBFUNC(yuv2rgb_c_bgr48, uint8_t, 0)
00190 LOADCHROMA(0);
00191 PUTBGR48(dst_1,py_1,0);
00192 PUTBGR48(dst_2,py_2,0);
00193
00194 LOADCHROMA(1);
00195 PUTBGR48(dst_2,py_2,1);
00196 PUTBGR48(dst_1,py_1,1);
00197
00198 LOADCHROMA(2);
00199 PUTBGR48(dst_1,py_1,2);
00200 PUTBGR48(dst_2,py_2,2);
00201
00202 LOADCHROMA(3);
00203 PUTBGR48(dst_2,py_2,3);
00204 PUTBGR48(dst_1,py_1,3);
00205 ENDYUV2RGBLINE(48)
00206 LOADCHROMA(0);
00207 PUTBGR48(dst_1,py_1,0);
00208 PUTBGR48(dst_2,py_2,0);
00209
00210 LOADCHROMA(1);
00211 PUTBGR48(dst_2,py_2,1);
00212 PUTBGR48(dst_1,py_1,1);
00213 ENDYUV2RGBFUNC()
00214
00215 YUV2RGBFUNC(yuv2rgb_c_32, uint32_t, 0)
00216 LOADCHROMA(0);
00217 PUTRGB(dst_1,py_1,0);
00218 PUTRGB(dst_2,py_2,0);
00219
00220 LOADCHROMA(1);
00221 PUTRGB(dst_2,py_2,1);
00222 PUTRGB(dst_1,py_1,1);
00223
00224 LOADCHROMA(2);
00225 PUTRGB(dst_1,py_1,2);
00226 PUTRGB(dst_2,py_2,2);
00227
00228 LOADCHROMA(3);
00229 PUTRGB(dst_2,py_2,3);
00230 PUTRGB(dst_1,py_1,3);
00231 ENDYUV2RGBLINE(8)
00232 LOADCHROMA(0);
00233 PUTRGB(dst_1,py_1,0);
00234 PUTRGB(dst_2,py_2,0);
00235
00236 LOADCHROMA(1);
00237 PUTRGB(dst_2,py_2,1);
00238 PUTRGB(dst_1,py_1,1);
00239 ENDYUV2RGBFUNC()
00240
00241 YUV2RGBFUNC(yuva2rgba_c, uint32_t, 1)
00242 LOADCHROMA(0);
00243 PUTRGBA(dst_1,py_1,pa_1,0,24);
00244 PUTRGBA(dst_2,py_2,pa_2,0,24);
00245
00246 LOADCHROMA(1);
00247 PUTRGBA(dst_2,py_2,pa_1,1,24);
00248 PUTRGBA(dst_1,py_1,pa_2,1,24);
00249
00250 LOADCHROMA(2);
00251 PUTRGBA(dst_1,py_1,pa_1,2,24);
00252 PUTRGBA(dst_2,py_2,pa_2,2,24);
00253
00254 LOADCHROMA(3);
00255 PUTRGBA(dst_2,py_2,pa_1,3,24);
00256 PUTRGBA(dst_1,py_1,pa_2,3,24);
00257 pa_1 += 8;\
00258 pa_2 += 8;\
00259 ENDYUV2RGBLINE(8)
00260 LOADCHROMA(0);
00261 PUTRGBA(dst_1,py_1,pa_1,0,24);
00262 PUTRGBA(dst_2,py_2,pa_2,0,24);
00263
00264 LOADCHROMA(1);
00265 PUTRGBA(dst_2,py_2,pa_1,1,24);
00266 PUTRGBA(dst_1,py_1,pa_2,1,24);
00267 ENDYUV2RGBFUNC()
00268
00269 YUV2RGBFUNC(yuva2argb_c, uint32_t, 1)
00270 LOADCHROMA(0);
00271 PUTRGBA(dst_1,py_1,pa_1,0,0);
00272 PUTRGBA(dst_2,py_2,pa_2,0,0);
00273
00274 LOADCHROMA(1);
00275 PUTRGBA(dst_2,py_2,pa_2,1,0);
00276 PUTRGBA(dst_1,py_1,pa_1,1,0);
00277
00278 LOADCHROMA(2);
00279 PUTRGBA(dst_1,py_1,pa_1,2,0);
00280 PUTRGBA(dst_2,py_2,pa_2,2,0);
00281
00282 LOADCHROMA(3);
00283 PUTRGBA(dst_2,py_2,pa_2,3,0);
00284 PUTRGBA(dst_1,py_1,pa_1,3,0);
00285 pa_1 += 8;\
00286 pa_2 += 8;\
00287 ENDYUV2RGBLINE(8)
00288 LOADCHROMA(0);
00289 PUTRGBA(dst_1,py_1,pa_1,0,0);
00290 PUTRGBA(dst_2,py_2,pa_2,0,0);
00291
00292 LOADCHROMA(1);
00293 PUTRGBA(dst_2,py_2,pa_2,1,0);
00294 PUTRGBA(dst_1,py_1,pa_1,1,0);
00295 ENDYUV2RGBFUNC()
00296
00297 YUV2RGBFUNC(yuv2rgb_c_24_rgb, uint8_t, 0)
00298 LOADCHROMA(0);
00299 PUTRGB24(dst_1,py_1,0);
00300 PUTRGB24(dst_2,py_2,0);
00301
00302 LOADCHROMA(1);
00303 PUTRGB24(dst_2,py_2,1);
00304 PUTRGB24(dst_1,py_1,1);
00305
00306 LOADCHROMA(2);
00307 PUTRGB24(dst_1,py_1,2);
00308 PUTRGB24(dst_2,py_2,2);
00309
00310 LOADCHROMA(3);
00311 PUTRGB24(dst_2,py_2,3);
00312 PUTRGB24(dst_1,py_1,3);
00313 ENDYUV2RGBLINE(24)
00314 LOADCHROMA(0);
00315 PUTRGB24(dst_1,py_1,0);
00316 PUTRGB24(dst_2,py_2,0);
00317
00318 LOADCHROMA(1);
00319 PUTRGB24(dst_2,py_2,1);
00320 PUTRGB24(dst_1,py_1,1);
00321 ENDYUV2RGBFUNC()
00322
00323
00324 YUV2RGBFUNC(yuv2rgb_c_24_bgr, uint8_t, 0)
00325 LOADCHROMA(0);
00326 PUTBGR24(dst_1,py_1,0);
00327 PUTBGR24(dst_2,py_2,0);
00328
00329 LOADCHROMA(1);
00330 PUTBGR24(dst_2,py_2,1);
00331 PUTBGR24(dst_1,py_1,1);
00332
00333 LOADCHROMA(2);
00334 PUTBGR24(dst_1,py_1,2);
00335 PUTBGR24(dst_2,py_2,2);
00336
00337 LOADCHROMA(3);
00338 PUTBGR24(dst_2,py_2,3);
00339 PUTBGR24(dst_1,py_1,3);
00340 ENDYUV2RGBLINE(24)
00341 LOADCHROMA(0);
00342 PUTBGR24(dst_1,py_1,0);
00343 PUTBGR24(dst_2,py_2,0);
00344
00345 LOADCHROMA(1);
00346 PUTBGR24(dst_2,py_2,1);
00347 PUTBGR24(dst_1,py_1,1);
00348 ENDYUV2RGBFUNC()
00349
00350
00351
00352 YUV2RGBFUNC(yuv2rgb_c_16, uint16_t, 0)
00353 LOADCHROMA(0);
00354 PUTRGB(dst_1,py_1,0);
00355 PUTRGB(dst_2,py_2,0);
00356
00357 LOADCHROMA(1);
00358 PUTRGB(dst_2,py_2,1);
00359 PUTRGB(dst_1,py_1,1);
00360
00361 LOADCHROMA(2);
00362 PUTRGB(dst_1,py_1,2);
00363 PUTRGB(dst_2,py_2,2);
00364
00365 LOADCHROMA(3);
00366 PUTRGB(dst_2,py_2,3);
00367 PUTRGB(dst_1,py_1,3);
00368 CLOSEYUV2RGBFUNC(8)
00369
00370
00371 YUV2RGBFUNC(yuv2rgb_c_12_ordered_dither, uint16_t, 0)
00372 const uint8_t *d16 = dither_4x4_16[y&3];
00373 #define PUTRGB12(dst,src,i,o) \
00374 Y = src[2*i]; \
00375 dst[2*i] = r[Y+d16[0+o]] + g[Y+d16[0+o]] + b[Y+d16[0+o]]; \
00376 Y = src[2*i+1]; \
00377 dst[2*i+1] = r[Y+d16[1+o]] + g[Y+d16[1+o]] + b[Y+d16[1+o]];
00378
00379 LOADCHROMA(0);
00380 PUTRGB12(dst_1,py_1,0,0);
00381 PUTRGB12(dst_2,py_2,0,0+8);
00382
00383 LOADCHROMA(1);
00384 PUTRGB12(dst_2,py_2,1,2+8);
00385 PUTRGB12(dst_1,py_1,1,2);
00386
00387 LOADCHROMA(2);
00388 PUTRGB12(dst_1,py_1,2,4);
00389 PUTRGB12(dst_2,py_2,2,4+8);
00390
00391 LOADCHROMA(3);
00392 PUTRGB12(dst_2,py_2,3,6+8);
00393 PUTRGB12(dst_1,py_1,3,6);
00394 CLOSEYUV2RGBFUNC(8)
00395
00396
00397 YUV2RGBFUNC(yuv2rgb_c_8_ordered_dither, uint8_t, 0)
00398 const uint8_t *d32 = dither_8x8_32[y&7];
00399 const uint8_t *d64 = dither_8x8_73[y&7];
00400 #define PUTRGB8(dst,src,i,o) \
00401 Y = src[2*i]; \
00402 dst[2*i] = r[Y+d32[0+o]] + g[Y+d32[0+o]] + b[Y+d64[0+o]]; \
00403 Y = src[2*i+1]; \
00404 dst[2*i+1] = r[Y+d32[1+o]] + g[Y+d32[1+o]] + b[Y+d64[1+o]];
00405
00406 LOADCHROMA(0);
00407 PUTRGB8(dst_1,py_1,0,0);
00408 PUTRGB8(dst_2,py_2,0,0+8);
00409
00410 LOADCHROMA(1);
00411 PUTRGB8(dst_2,py_2,1,2+8);
00412 PUTRGB8(dst_1,py_1,1,2);
00413
00414 LOADCHROMA(2);
00415 PUTRGB8(dst_1,py_1,2,4);
00416 PUTRGB8(dst_2,py_2,2,4+8);
00417
00418 LOADCHROMA(3);
00419 PUTRGB8(dst_2,py_2,3,6+8);
00420 PUTRGB8(dst_1,py_1,3,6);
00421 CLOSEYUV2RGBFUNC(8)
00422
00423 YUV2RGBFUNC(yuv2rgb_c_4_ordered_dither, uint8_t, 0)
00424 const uint8_t *d64 = dither_8x8_73[y&7];
00425 const uint8_t *d128 = dither_8x8_220[y&7];
00426 int acc;
00427
00428 #define PUTRGB4D(dst,src,i,o) \
00429 Y = src[2*i]; \
00430 acc = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
00431 Y = src[2*i+1]; \
00432 acc |= (r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]])<<4; \
00433 dst[i]= acc;
00434
00435 LOADCHROMA(0);
00436 PUTRGB4D(dst_1,py_1,0,0);
00437 PUTRGB4D(dst_2,py_2,0,0+8);
00438
00439 LOADCHROMA(1);
00440 PUTRGB4D(dst_2,py_2,1,2+8);
00441 PUTRGB4D(dst_1,py_1,1,2);
00442
00443 LOADCHROMA(2);
00444 PUTRGB4D(dst_1,py_1,2,4);
00445 PUTRGB4D(dst_2,py_2,2,4+8);
00446
00447 LOADCHROMA(3);
00448 PUTRGB4D(dst_2,py_2,3,6+8);
00449 PUTRGB4D(dst_1,py_1,3,6);
00450 CLOSEYUV2RGBFUNC(4)
00451
00452 YUV2RGBFUNC(yuv2rgb_c_4b_ordered_dither, uint8_t, 0)
00453 const uint8_t *d64 = dither_8x8_73[y&7];
00454 const uint8_t *d128 = dither_8x8_220[y&7];
00455
00456 #define PUTRGB4DB(dst,src,i,o) \
00457 Y = src[2*i]; \
00458 dst[2*i] = r[Y+d128[0+o]] + g[Y+d64[0+o]] + b[Y+d128[0+o]]; \
00459 Y = src[2*i+1]; \
00460 dst[2*i+1] = r[Y+d128[1+o]] + g[Y+d64[1+o]] + b[Y+d128[1+o]];
00461
00462 LOADCHROMA(0);
00463 PUTRGB4DB(dst_1,py_1,0,0);
00464 PUTRGB4DB(dst_2,py_2,0,0+8);
00465
00466 LOADCHROMA(1);
00467 PUTRGB4DB(dst_2,py_2,1,2+8);
00468 PUTRGB4DB(dst_1,py_1,1,2);
00469
00470 LOADCHROMA(2);
00471 PUTRGB4DB(dst_1,py_1,2,4);
00472 PUTRGB4DB(dst_2,py_2,2,4+8);
00473
00474 LOADCHROMA(3);
00475 PUTRGB4DB(dst_2,py_2,3,6+8);
00476 PUTRGB4DB(dst_1,py_1,3,6);
00477 CLOSEYUV2RGBFUNC(8)
00478
00479 YUV2RGBFUNC(yuv2rgb_c_1_ordered_dither, uint8_t, 0)
00480 const uint8_t *d128 = dither_8x8_220[y&7];
00481 char out_1 = 0, out_2 = 0;
00482 g= c->table_gU[128] + c->table_gV[128];
00483
00484 #define PUTRGB1(out,src,i,o) \
00485 Y = src[2*i]; \
00486 out+= out + g[Y+d128[0+o]]; \
00487 Y = src[2*i+1]; \
00488 out+= out + g[Y+d128[1+o]];
00489
00490 PUTRGB1(out_1,py_1,0,0);
00491 PUTRGB1(out_2,py_2,0,0+8);
00492
00493 PUTRGB1(out_2,py_2,1,2+8);
00494 PUTRGB1(out_1,py_1,1,2);
00495
00496 PUTRGB1(out_1,py_1,2,4);
00497 PUTRGB1(out_2,py_2,2,4+8);
00498
00499 PUTRGB1(out_2,py_2,3,6+8);
00500 PUTRGB1(out_1,py_1,3,6);
00501
00502 dst_1[0]= out_1;
00503 dst_2[0]= out_2;
00504 CLOSEYUV2RGBFUNC(1)
00505
00506 SwsFunc ff_yuv2rgb_get_func_ptr(SwsContext *c)
00507 {
00508 SwsFunc t = NULL;
00509
00510 if (HAVE_MMX) {
00511 t = ff_yuv2rgb_init_mmx(c);
00512 } else if (HAVE_VIS) {
00513 t = ff_yuv2rgb_init_vis(c);
00514 } else if (CONFIG_MLIB) {
00515 t = ff_yuv2rgb_init_mlib(c);
00516 } else if (HAVE_ALTIVEC) {
00517 t = ff_yuv2rgb_init_altivec(c);
00518 } else if (ARCH_BFIN) {
00519 t = ff_yuv2rgb_get_func_ptr_bfin(c);
00520 }
00521
00522 if (t)
00523 return t;
00524
00525 av_log(c, AV_LOG_WARNING, "No accelerated colorspace conversion found from %s to %s.\n",
00526 av_get_pix_fmt_name(c->srcFormat), av_get_pix_fmt_name(c->dstFormat));
00527
00528 switch (c->dstFormat) {
00529 case PIX_FMT_BGR48BE:
00530 case PIX_FMT_BGR48LE: return yuv2rgb_c_bgr48;
00531 case PIX_FMT_RGB48BE:
00532 case PIX_FMT_RGB48LE: return yuv2rgb_c_48;
00533 case PIX_FMT_ARGB:
00534 case PIX_FMT_ABGR: if (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) return yuva2argb_c;
00535 case PIX_FMT_RGBA:
00536 case PIX_FMT_BGRA: return (CONFIG_SWSCALE_ALPHA && c->srcFormat == PIX_FMT_YUVA420P) ? yuva2rgba_c : yuv2rgb_c_32;
00537 case PIX_FMT_RGB24: return yuv2rgb_c_24_rgb;
00538 case PIX_FMT_BGR24: return yuv2rgb_c_24_bgr;
00539 case PIX_FMT_RGB565:
00540 case PIX_FMT_BGR565:
00541 case PIX_FMT_RGB555:
00542 case PIX_FMT_BGR555: return yuv2rgb_c_16;
00543 case PIX_FMT_RGB444:
00544 case PIX_FMT_BGR444: return yuv2rgb_c_12_ordered_dither;
00545 case PIX_FMT_RGB8:
00546 case PIX_FMT_BGR8: return yuv2rgb_c_8_ordered_dither;
00547 case PIX_FMT_RGB4:
00548 case PIX_FMT_BGR4: return yuv2rgb_c_4_ordered_dither;
00549 case PIX_FMT_RGB4_BYTE:
00550 case PIX_FMT_BGR4_BYTE: return yuv2rgb_c_4b_ordered_dither;
00551 case PIX_FMT_MONOBLACK: return yuv2rgb_c_1_ordered_dither;
00552 default:
00553 assert(0);
00554 }
00555 return NULL;
00556 }
00557
00558 static void fill_table(uint8_t* table[256], const int elemsize, const int inc, void *y_tab)
00559 {
00560 int i;
00561 int64_t cb = 0;
00562 uint8_t *y_table = y_tab;
00563
00564 y_table -= elemsize * (inc >> 9);
00565
00566 for (i = 0; i < 256; i++) {
00567 table[i] = y_table + elemsize * (cb >> 16);
00568 cb += inc;
00569 }
00570 }
00571
00572 static void fill_gv_table(int table[256], const int elemsize, const int inc)
00573 {
00574 int i;
00575 int64_t cb = 0;
00576 int off = -(inc >> 9);
00577
00578 for (i = 0; i < 256; i++) {
00579 table[i] = elemsize * (off + (cb >> 16));
00580 cb += inc;
00581 }
00582 }
00583
00584 static uint16_t roundToInt16(int64_t f)
00585 {
00586 int r= (f + (1<<15))>>16;
00587 if (r<-0x7FFF) return 0x8000;
00588 else if (r> 0x7FFF) return 0x7FFF;
00589 else return r;
00590 }
00591
00592 av_cold int ff_yuv2rgb_c_init_tables(SwsContext *c, const int inv_table[4], int fullRange,
00593 int brightness, int contrast, int saturation)
00594 {
00595 const int isRgb = c->dstFormat==PIX_FMT_RGB32
00596 || c->dstFormat==PIX_FMT_RGB32_1
00597 || c->dstFormat==PIX_FMT_BGR24
00598 || c->dstFormat==PIX_FMT_RGB565BE
00599 || c->dstFormat==PIX_FMT_RGB565LE
00600 || c->dstFormat==PIX_FMT_RGB555BE
00601 || c->dstFormat==PIX_FMT_RGB555LE
00602 || c->dstFormat==PIX_FMT_RGB444BE
00603 || c->dstFormat==PIX_FMT_RGB444LE
00604 || c->dstFormat==PIX_FMT_RGB8
00605 || c->dstFormat==PIX_FMT_RGB4
00606 || c->dstFormat==PIX_FMT_RGB4_BYTE
00607 || c->dstFormat==PIX_FMT_MONOBLACK;
00608 const int isNotNe = c->dstFormat==PIX_FMT_NE(RGB565LE,RGB565BE)
00609 || c->dstFormat==PIX_FMT_NE(RGB555LE,RGB555BE)
00610 || c->dstFormat==PIX_FMT_NE(RGB444LE,RGB444BE)
00611 || c->dstFormat==PIX_FMT_NE(BGR565LE,BGR565BE)
00612 || c->dstFormat==PIX_FMT_NE(BGR555LE,BGR555BE)
00613 || c->dstFormat==PIX_FMT_NE(BGR444LE,BGR444BE);
00614 const int bpp = c->dstFormatBpp;
00615 uint8_t *y_table;
00616 uint16_t *y_table16;
00617 uint32_t *y_table32;
00618 int i, base, rbase, gbase, bbase, av_uninit(abase), needAlpha;
00619 const int yoffs = fullRange ? 384 : 326;
00620
00621 int64_t crv = inv_table[0];
00622 int64_t cbu = inv_table[1];
00623 int64_t cgu = -inv_table[2];
00624 int64_t cgv = -inv_table[3];
00625 int64_t cy = 1<<16;
00626 int64_t oy = 0;
00627
00628 int64_t yb = 0;
00629
00630 if (!fullRange) {
00631 cy = (cy*255) / 219;
00632 oy = 16<<16;
00633 } else {
00634 crv = (crv*224) / 255;
00635 cbu = (cbu*224) / 255;
00636 cgu = (cgu*224) / 255;
00637 cgv = (cgv*224) / 255;
00638 }
00639
00640 cy = (cy *contrast ) >> 16;
00641 crv = (crv*contrast * saturation) >> 32;
00642 cbu = (cbu*contrast * saturation) >> 32;
00643 cgu = (cgu*contrast * saturation) >> 32;
00644 cgv = (cgv*contrast * saturation) >> 32;
00645 oy -= 256*brightness;
00646
00647 c->uOffset= 0x0400040004000400LL;
00648 c->vOffset= 0x0400040004000400LL;
00649 c->yCoeff= roundToInt16(cy *8192) * 0x0001000100010001ULL;
00650 c->vrCoeff= roundToInt16(crv*8192) * 0x0001000100010001ULL;
00651 c->ubCoeff= roundToInt16(cbu*8192) * 0x0001000100010001ULL;
00652 c->vgCoeff= roundToInt16(cgv*8192) * 0x0001000100010001ULL;
00653 c->ugCoeff= roundToInt16(cgu*8192) * 0x0001000100010001ULL;
00654 c->yOffset= roundToInt16(oy * 8) * 0x0001000100010001ULL;
00655
00656 c->yuv2rgb_y_coeff = (int16_t)roundToInt16(cy <<13);
00657 c->yuv2rgb_y_offset = (int16_t)roundToInt16(oy << 9);
00658 c->yuv2rgb_v2r_coeff= (int16_t)roundToInt16(crv<<13);
00659 c->yuv2rgb_v2g_coeff= (int16_t)roundToInt16(cgv<<13);
00660 c->yuv2rgb_u2g_coeff= (int16_t)roundToInt16(cgu<<13);
00661 c->yuv2rgb_u2b_coeff= (int16_t)roundToInt16(cbu<<13);
00662
00663
00664 crv = ((crv << 16) + 0x8000) / cy;
00665 cbu = ((cbu << 16) + 0x8000) / cy;
00666 cgu = ((cgu << 16) + 0x8000) / cy;
00667 cgv = ((cgv << 16) + 0x8000) / cy;
00668
00669 av_free(c->yuvTable);
00670
00671 switch (bpp) {
00672 case 1:
00673 c->yuvTable = av_malloc(1024);
00674 y_table = c->yuvTable;
00675 yb = -(384<<16) - oy;
00676 for (i = 0; i < 1024-110; i++) {
00677 y_table[i+110] = av_clip_uint8((yb + 0x8000) >> 16) >> 7;
00678 yb += cy;
00679 }
00680 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
00681 fill_gv_table(c->table_gV, 1, cgv);
00682 break;
00683 case 4:
00684 case 4|128:
00685 rbase = isRgb ? 3 : 0;
00686 gbase = 1;
00687 bbase = isRgb ? 0 : 3;
00688 c->yuvTable = av_malloc(1024*3);
00689 y_table = c->yuvTable;
00690 yb = -(384<<16) - oy;
00691 for (i = 0; i < 1024-110; i++) {
00692 int yval = av_clip_uint8((yb + 0x8000) >> 16);
00693 y_table[i+110 ] = (yval >> 7) << rbase;
00694 y_table[i+ 37+1024] = ((yval + 43) / 85) << gbase;
00695 y_table[i+110+2048] = (yval >> 7) << bbase;
00696 yb += cy;
00697 }
00698 fill_table(c->table_rV, 1, crv, y_table + yoffs);
00699 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
00700 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
00701 fill_gv_table(c->table_gV, 1, cgv);
00702 break;
00703 case 8:
00704 rbase = isRgb ? 5 : 0;
00705 gbase = isRgb ? 2 : 3;
00706 bbase = isRgb ? 0 : 6;
00707 c->yuvTable = av_malloc(1024*3);
00708 y_table = c->yuvTable;
00709 yb = -(384<<16) - oy;
00710 for (i = 0; i < 1024-38; i++) {
00711 int yval = av_clip_uint8((yb + 0x8000) >> 16);
00712 y_table[i+16 ] = ((yval + 18) / 36) << rbase;
00713 y_table[i+16+1024] = ((yval + 18) / 36) << gbase;
00714 y_table[i+37+2048] = ((yval + 43) / 85) << bbase;
00715 yb += cy;
00716 }
00717 fill_table(c->table_rV, 1, crv, y_table + yoffs);
00718 fill_table(c->table_gU, 1, cgu, y_table + yoffs + 1024);
00719 fill_table(c->table_bU, 1, cbu, y_table + yoffs + 2048);
00720 fill_gv_table(c->table_gV, 1, cgv);
00721 break;
00722 case 12:
00723 rbase = isRgb ? 8 : 0;
00724 gbase = 4;
00725 bbase = isRgb ? 0 : 8;
00726 c->yuvTable = av_malloc(1024*3*2);
00727 y_table16 = c->yuvTable;
00728 yb = -(384<<16) - oy;
00729 for (i = 0; i < 1024; i++) {
00730 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
00731 y_table16[i ] = (yval >> 4) << rbase;
00732 y_table16[i+1024] = (yval >> 4) << gbase;
00733 y_table16[i+2048] = (yval >> 4) << bbase;
00734 yb += cy;
00735 }
00736 if (isNotNe)
00737 for (i = 0; i < 1024*3; i++)
00738 y_table16[i] = av_bswap16(y_table16[i]);
00739 fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
00740 fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
00741 fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
00742 fill_gv_table(c->table_gV, 2, cgv);
00743 break;
00744 case 15:
00745 case 16:
00746 rbase = isRgb ? bpp - 5 : 0;
00747 gbase = 5;
00748 bbase = isRgb ? 0 : (bpp - 5);
00749 c->yuvTable = av_malloc(1024*3*2);
00750 y_table16 = c->yuvTable;
00751 yb = -(384<<16) - oy;
00752 for (i = 0; i < 1024; i++) {
00753 uint8_t yval = av_clip_uint8((yb + 0x8000) >> 16);
00754 y_table16[i ] = (yval >> 3) << rbase;
00755 y_table16[i+1024] = (yval >> (18 - bpp)) << gbase;
00756 y_table16[i+2048] = (yval >> 3) << bbase;
00757 yb += cy;
00758 }
00759 if(isNotNe)
00760 for (i = 0; i < 1024*3; i++)
00761 y_table16[i] = av_bswap16(y_table16[i]);
00762 fill_table(c->table_rV, 2, crv, y_table16 + yoffs);
00763 fill_table(c->table_gU, 2, cgu, y_table16 + yoffs + 1024);
00764 fill_table(c->table_bU, 2, cbu, y_table16 + yoffs + 2048);
00765 fill_gv_table(c->table_gV, 2, cgv);
00766 break;
00767 case 24:
00768 case 48:
00769 c->yuvTable = av_malloc(1024);
00770 y_table = c->yuvTable;
00771 yb = -(384<<16) - oy;
00772 for (i = 0; i < 1024; i++) {
00773 y_table[i] = av_clip_uint8((yb + 0x8000) >> 16);
00774 yb += cy;
00775 }
00776 fill_table(c->table_rV, 1, crv, y_table + yoffs);
00777 fill_table(c->table_gU, 1, cgu, y_table + yoffs);
00778 fill_table(c->table_bU, 1, cbu, y_table + yoffs);
00779 fill_gv_table(c->table_gV, 1, cgv);
00780 break;
00781 case 32:
00782 base = (c->dstFormat == PIX_FMT_RGB32_1 || c->dstFormat == PIX_FMT_BGR32_1) ? 8 : 0;
00783 rbase = base + (isRgb ? 16 : 0);
00784 gbase = base + 8;
00785 bbase = base + (isRgb ? 0 : 16);
00786 needAlpha = CONFIG_SWSCALE_ALPHA && isALPHA(c->srcFormat);
00787 if (!needAlpha)
00788 abase = (base + 24) & 31;
00789 c->yuvTable = av_malloc(1024*3*4);
00790 y_table32 = c->yuvTable;
00791 yb = -(384<<16) - oy;
00792 for (i = 0; i < 1024; i++) {
00793 unsigned yval = av_clip_uint8((yb + 0x8000) >> 16);
00794 y_table32[i ] = (yval << rbase) + (needAlpha ? 0 : (255u << abase));
00795 y_table32[i+1024] = yval << gbase;
00796 y_table32[i+2048] = yval << bbase;
00797 yb += cy;
00798 }
00799 fill_table(c->table_rV, 4, crv, y_table32 + yoffs);
00800 fill_table(c->table_gU, 4, cgu, y_table32 + yoffs + 1024);
00801 fill_table(c->table_bU, 4, cbu, y_table32 + yoffs + 2048);
00802 fill_gv_table(c->table_gV, 4, cgv);
00803 break;
00804 default:
00805 c->yuvTable = NULL;
00806 av_log(c, AV_LOG_ERROR, "%ibpp not supported by yuv2rgb\n", bpp);
00807 return -1;
00808 }
00809 return 0;
00810 }
