1 /* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * Copyright (c) 2008-2009 VMware, Inc. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR 21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, 22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR 23 * OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26 27 /** 28 * \file texformat.c 29 * Texture formats. 30 * 31 * \author Gareth Hughes 32 * \author Brian Paul 33 */ 34 35 36 #include "context.h" 37 #include "enums.h" 38 #include "mtypes.h" 39 #include "texcompress.h" 40 #include "texformat.h" 41 #include "glformats.h" 42 43 #define RETURN_IF_SUPPORTED(f) do { \ 44 if (ctx->TextureFormatSupported[f]) \ 45 return f; \ 46 } while (0) 47 48 /** 49 * Choose an appropriate texture format given the format, type and 50 * internalFormat parameters passed to glTexImage(). 51 * 52 * \param ctx the GL context. 53 * \param target a texture target (GL_TEXTURE_x) 54 * \param internalFormat user's prefered internal texture format. 55 * \param format incoming image pixel format. 56 * \param type incoming image data type. 57 * 58 * \return the closest mesa_format for the given format/type arguments 59 * 60 * This is called via dd_function_table::ChooseTextureFormat. Hardware 61 * drivers may override this function with a specialized version. 62 */ 63 mesa_format 64 _mesa_choose_tex_format(struct gl_context *ctx, GLenum target, 65 GLint internalFormat, GLenum format, GLenum type) 66 { 67 (void) format; 68 69 switch (internalFormat) { 70 /* shallow RGBA formats */ 71 case 4: 72 case GL_RGBA: 73 if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) { 74 RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM); 75 } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { 76 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G5R5A1_UNORM); 77 } else if (type == GL_UNSIGNED_SHORT_5_5_5_1) { 78 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G5R5A1_UNORM); 79 } else if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { 80 RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM); 81 } 82 /* fallthrough */ 83 84 case GL_RGBA8: 85 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_UNORM); 86 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM); 87 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 88 break; 89 case GL_RGB5_A1: 90 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G5R5A1_UNORM); 91 break; 92 case GL_RGBA2: 93 RETURN_IF_SUPPORTED(MESA_FORMAT_A4R4G4B4_UNORM); /* just to test another format*/ 94 RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM); 95 break; 96 case GL_RGBA4: 97 RETURN_IF_SUPPORTED(MESA_FORMAT_B4G4R4A4_UNORM); 98 break; 99 100 /* deep RGBA formats */ 101 case GL_RGB10_A2: 102 RETURN_IF_SUPPORTED(MESA_FORMAT_R10G10B10A2_UNORM); 103 RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM); 104 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 105 break; 106 case GL_RGBA12: 107 case GL_RGBA16: 108 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16); 109 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16); 110 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM); 111 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 112 break; 113 114 /* shallow RGB formats */ 115 case 3: 116 case GL_RGB: 117 if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { 118 RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UNORM); 119 } 120 /* fallthrough */ 121 case GL_RGB8: 122 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UNORM8); 123 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8X8_UNORM); 124 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_UNORM); 125 126 RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8); 127 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM); 128 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 129 break; 130 case GL_R3_G3_B2: 131 RETURN_IF_SUPPORTED(MESA_FORMAT_B2G3R3_UNORM); 132 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM); 133 RETURN_IF_SUPPORTED(MESA_FORMAT_R5G6B5_UNORM); 134 RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8); 135 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM); 136 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 137 break; 138 case GL_RGB4: 139 RETURN_IF_SUPPORTED(MESA_FORMAT_R5G6B5_UNORM); /* just to test another format */ 140 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM); 141 break; 142 case GL_RGB5: 143 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM); 144 break; 145 146 /* deep RGB formats */ 147 case GL_RGB10: 148 case GL_RGB12: 149 case GL_RGB16: 150 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UNORM16); 151 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UNORM16); 152 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM); 153 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 154 break; 155 156 /* Alpha formats */ 157 case GL_ALPHA: 158 case GL_ALPHA4: 159 case GL_ALPHA8: 160 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8); 161 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 162 break; 163 164 case GL_ALPHA12: 165 case GL_ALPHA16: 166 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM16); 167 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8); 168 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 169 break; 170 171 /* Luminance formats */ 172 case 1: 173 case GL_LUMINANCE: 174 case GL_LUMINANCE4: 175 case GL_LUMINANCE8: 176 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8); 177 break; 178 179 case GL_LUMINANCE12: 180 case GL_LUMINANCE16: 181 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM16); 182 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8); 183 break; 184 185 /* Luminance/Alpha formats */ 186 case GL_LUMINANCE4_ALPHA4: 187 RETURN_IF_SUPPORTED(MESA_FORMAT_L4A4_UNORM); 188 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 189 break; 190 191 case 2: 192 case GL_LUMINANCE_ALPHA: 193 case GL_LUMINANCE6_ALPHA2: 194 case GL_LUMINANCE8_ALPHA8: 195 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 196 break; 197 198 case GL_LUMINANCE12_ALPHA4: 199 case GL_LUMINANCE12_ALPHA12: 200 case GL_LUMINANCE16_ALPHA16: 201 RETURN_IF_SUPPORTED(MESA_FORMAT_L16A16_UNORM); 202 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 203 break; 204 205 case GL_INTENSITY: 206 case GL_INTENSITY4: 207 case GL_INTENSITY8: 208 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8); 209 break; 210 211 case GL_INTENSITY12: 212 case GL_INTENSITY16: 213 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM16); 214 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8); 215 break; 216 217 case GL_DEPTH_COMPONENT: 218 case GL_DEPTH_COMPONENT24: 219 case GL_DEPTH_COMPONENT32: 220 RETURN_IF_SUPPORTED(MESA_FORMAT_Z_UNORM32); 221 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_X8_UINT); 222 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_S8_UINT); 223 break; 224 case GL_DEPTH_COMPONENT16: 225 RETURN_IF_SUPPORTED(MESA_FORMAT_Z_UNORM16); 226 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_X8_UINT); 227 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_S8_UINT); 228 break; 229 230 case GL_COMPRESSED_ALPHA_ARB: 231 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UNORM8); 232 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 233 break; 234 case GL_COMPRESSED_LUMINANCE_ARB: 235 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UNORM8); 236 break; 237 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 238 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_UNORM); 239 break; 240 case GL_COMPRESSED_INTENSITY_ARB: 241 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UNORM8); 242 break; 243 case GL_COMPRESSED_RGB_ARB: 244 /* We don't use texture compression for 1D and 1D array textures. 245 * For 1D textures, compressions doesn't buy us much. 246 * For 1D ARRAY textures, there's complicated issues with updating 247 * sub-regions on non-block boundaries with glCopyTexSubImage, among 248 * other issues. FWIW, the GL_EXT_texture_array extension prohibits 249 * 1D ARRAY textures in S3TC format. 250 */ 251 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) { 252 if (ctx->Mesa_DXTn) 253 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); 254 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); 255 } 256 RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_UNORM8); 257 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8X8_UNORM); 258 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 259 break; 260 case GL_COMPRESSED_RGBA_ARB: 261 /* We don't use texture compression for 1D and 1D array textures. */ 262 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) { 263 if (ctx->Mesa_DXTn) 264 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */ 265 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); 266 } 267 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_UNORM); 268 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 269 break; 270 271 case GL_RGB565: 272 RETURN_IF_SUPPORTED(MESA_FORMAT_B5G6R5_UNORM); 273 break; 274 275 case GL_YCBCR_MESA: 276 if (type == GL_UNSIGNED_SHORT_8_8_MESA) 277 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR); 278 else 279 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV); 280 break; 281 282 case GL_ALPHA16F_ARB: 283 RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT16); 284 RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT32); 285 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 286 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 287 break; 288 case GL_ALPHA32F_ARB: 289 RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT32); 290 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 291 RETURN_IF_SUPPORTED(MESA_FORMAT_A_FLOAT16); 292 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 293 break; 294 case GL_LUMINANCE16F_ARB: 295 RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT16); 296 RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT32); 297 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 298 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 299 break; 300 case GL_LUMINANCE32F_ARB: 301 RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT32); 302 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 303 RETURN_IF_SUPPORTED(MESA_FORMAT_L_FLOAT16); 304 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 305 break; 306 case GL_LUMINANCE_ALPHA16F_ARB: 307 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT16); 308 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT32); 309 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 310 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 311 break; 312 case GL_LUMINANCE_ALPHA32F_ARB: 313 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT32); 314 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 315 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_FLOAT16); 316 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 317 break; 318 case GL_INTENSITY16F_ARB: 319 RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT16); 320 RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT32); 321 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 322 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 323 break; 324 case GL_INTENSITY32F_ARB: 325 RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT32); 326 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 327 RETURN_IF_SUPPORTED(MESA_FORMAT_I_FLOAT16); 328 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 329 break; 330 case GL_RGB16F_ARB: 331 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); 332 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_FLOAT16); 333 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 334 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); 335 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 336 break; 337 case GL_RGB32F_ARB: 338 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); 339 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_FLOAT32); 340 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 341 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); 342 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 343 break; 344 case GL_RGBA16F_ARB: 345 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 346 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 347 break; 348 case GL_RGBA32F_ARB: 349 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 350 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 351 break; 352 353 case GL_RGB9_E5: 354 /* GL_EXT_texture_shared_exponent -- just one format to support */ 355 assert(ctx->TextureFormatSupported[MESA_FORMAT_R9G9B9E5_FLOAT]); 356 return MESA_FORMAT_R9G9B9E5_FLOAT; 357 358 case GL_R11F_G11F_B10F: 359 /* GL_EXT_texture_packed_float -- just one format to support */ 360 assert(ctx->TextureFormatSupported[MESA_FORMAT_R11G11B10_FLOAT]); 361 return MESA_FORMAT_R11G11B10_FLOAT; 362 363 case GL_DEPTH_STENCIL_EXT: 364 case GL_DEPTH24_STENCIL8_EXT: 365 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_UINT_Z24_UNORM); 366 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_UNORM_S8_UINT); 367 break; 368 369 case GL_DEPTH_COMPONENT32F: 370 assert(ctx->TextureFormatSupported[MESA_FORMAT_Z_FLOAT32]); 371 return MESA_FORMAT_Z_FLOAT32; 372 case GL_DEPTH32F_STENCIL8: 373 assert(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT_S8X24_UINT]); 374 return MESA_FORMAT_Z32_FLOAT_S8X24_UINT; 375 376 case GL_RED_SNORM: 377 case GL_R8_SNORM: 378 RETURN_IF_SUPPORTED(MESA_FORMAT_R_SNORM8); 379 break; 380 case GL_RG_SNORM: 381 case GL_RG8_SNORM: 382 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_SNORM); 383 break; 384 case GL_RGB_SNORM: 385 case GL_RGB8_SNORM: 386 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8X8_SNORM); 387 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 388 RETURN_IF_SUPPORTED(MESA_FORMAT_X8B8G8R8_SNORM); 389 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 390 break; 391 case GL_RGBA_SNORM: 392 case GL_RGBA8_SNORM: 393 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 394 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 395 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 396 break; 397 case GL_ALPHA_SNORM: 398 case GL_ALPHA8_SNORM: 399 RETURN_IF_SUPPORTED(MESA_FORMAT_A_SNORM8); 400 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 401 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 402 break; 403 case GL_LUMINANCE_SNORM: 404 case GL_LUMINANCE8_SNORM: 405 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SNORM8); 406 RETURN_IF_SUPPORTED(MESA_FORMAT_X8B8G8R8_SNORM); 407 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 408 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 409 break; 410 case GL_LUMINANCE_ALPHA_SNORM: 411 case GL_LUMINANCE8_ALPHA8_SNORM: 412 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SNORM); 413 RETURN_IF_SUPPORTED(MESA_FORMAT_A8L8_SNORM); 414 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 415 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 416 break; 417 case GL_INTENSITY_SNORM: 418 case GL_INTENSITY8_SNORM: 419 RETURN_IF_SUPPORTED(MESA_FORMAT_I_SNORM8); 420 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 421 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 422 break; 423 case GL_R16_SNORM: 424 RETURN_IF_SUPPORTED(MESA_FORMAT_R_SNORM16); 425 break; 426 case GL_RG16_SNORM: 427 RETURN_IF_SUPPORTED(MESA_FORMAT_R16G16_SNORM); 428 break; 429 case GL_RGB16_SNORM: 430 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SNORM16); 431 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SNORM16); 432 /* FALLTHROUGH */ 433 case GL_RGBA16_SNORM: 434 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16); 435 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 436 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 437 break; 438 case GL_ALPHA16_SNORM: 439 RETURN_IF_SUPPORTED(MESA_FORMAT_A_SNORM16); 440 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16); 441 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 442 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 443 break; 444 case GL_LUMINANCE16_SNORM: 445 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SNORM16); 446 /* FALLTHROUGH */ 447 case GL_LUMINANCE16_ALPHA16_SNORM: 448 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SNORM16); 449 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16); 450 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 451 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 452 break; 453 case GL_INTENSITY16_SNORM: 454 RETURN_IF_SUPPORTED(MESA_FORMAT_I_SNORM16); 455 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SNORM16); 456 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SNORM); 457 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SNORM); 458 break; 459 460 case GL_SRGB_EXT: 461 case GL_SRGB8_EXT: 462 /* there is no MESA_FORMAT_RGB_SRGB8 */ 463 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8X8_SRGB); 464 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SRGB); 465 466 RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_SRGB8); 467 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 468 469 RETURN_IF_SUPPORTED(MESA_FORMAT_X8B8G8R8_SRGB); 470 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 471 break; 472 case GL_SRGB_ALPHA_EXT: 473 case GL_SRGB8_ALPHA8_EXT: 474 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8B8A8_SRGB); 475 476 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SRGB); 477 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 478 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 479 break; 480 case GL_SLUMINANCE_EXT: 481 case GL_SLUMINANCE8_EXT: 482 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SRGB8); 483 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 484 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 485 break; 486 case GL_SLUMINANCE_ALPHA_EXT: 487 case GL_SLUMINANCE8_ALPHA8_EXT: 488 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SRGB); 489 RETURN_IF_SUPPORTED(MESA_FORMAT_A8L8_SRGB); 490 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 491 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 492 break; 493 case GL_COMPRESSED_SLUMINANCE_EXT: 494 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SRGB8); 495 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 496 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 497 break; 498 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 499 RETURN_IF_SUPPORTED(MESA_FORMAT_L8A8_SRGB); 500 RETURN_IF_SUPPORTED(MESA_FORMAT_A8L8_SRGB); 501 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 502 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 503 break; 504 case GL_COMPRESSED_SRGB_EXT: 505 if (ctx->Mesa_DXTn) 506 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); 507 RETURN_IF_SUPPORTED(MESA_FORMAT_BGR_SRGB8); 508 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 509 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 510 break; 511 case GL_COMPRESSED_SRGB_ALPHA_EXT: 512 if (ctx->Mesa_DXTn) 513 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ 514 RETURN_IF_SUPPORTED(MESA_FORMAT_A8B8G8R8_SRGB); 515 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_SRGB); 516 RETURN_IF_SUPPORTED(MESA_FORMAT_A8R8G8B8_SRGB); 517 break; 518 519 case GL_ALPHA8UI_EXT: 520 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT8); 521 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 522 break; 523 case GL_ALPHA16UI_EXT: 524 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT16); 525 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 526 break; 527 case GL_ALPHA32UI_EXT: 528 RETURN_IF_SUPPORTED(MESA_FORMAT_A_UINT32); 529 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 530 break; 531 case GL_ALPHA8I_EXT: 532 RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT8); 533 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 534 break; 535 case GL_ALPHA16I_EXT: 536 RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT16); 537 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 538 break; 539 case GL_ALPHA32I_EXT: 540 RETURN_IF_SUPPORTED(MESA_FORMAT_A_SINT32); 541 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 542 break; 543 case GL_LUMINANCE8UI_EXT: 544 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT8); 545 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 546 break; 547 case GL_LUMINANCE16UI_EXT: 548 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT16); 549 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 550 break; 551 case GL_LUMINANCE32UI_EXT: 552 RETURN_IF_SUPPORTED(MESA_FORMAT_L_UINT32); 553 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 554 break; 555 case GL_LUMINANCE8I_EXT: 556 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT8); 557 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 558 break; 559 case GL_LUMINANCE16I_EXT: 560 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT16); 561 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 562 break; 563 case GL_LUMINANCE32I_EXT: 564 RETURN_IF_SUPPORTED(MESA_FORMAT_L_SINT32); 565 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 566 break; 567 case GL_LUMINANCE_ALPHA8UI_EXT: 568 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT8); 569 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 570 break; 571 case GL_LUMINANCE_ALPHA16UI_EXT: 572 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT16); 573 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 574 break; 575 case GL_LUMINANCE_ALPHA32UI_EXT: 576 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_UINT32); 577 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 578 break; 579 case GL_LUMINANCE_ALPHA8I_EXT: 580 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT8); 581 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 582 break; 583 case GL_LUMINANCE_ALPHA16I_EXT: 584 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT16); 585 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 586 break; 587 case GL_LUMINANCE_ALPHA32I_EXT: 588 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_SINT32); 589 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 590 break; 591 case GL_INTENSITY8UI_EXT: 592 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT8); 593 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 594 break; 595 case GL_INTENSITY16UI_EXT: 596 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT16); 597 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 598 break; 599 case GL_INTENSITY32UI_EXT: 600 RETURN_IF_SUPPORTED(MESA_FORMAT_I_UINT32); 601 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 602 break; 603 case GL_INTENSITY8I_EXT: 604 RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT8); 605 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 606 break; 607 case GL_INTENSITY16I_EXT: 608 RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT16); 609 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 610 break; 611 case GL_INTENSITY32I_EXT: 612 RETURN_IF_SUPPORTED(MESA_FORMAT_I_SINT32); 613 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 614 break; 615 616 case GL_RGB8UI_EXT: 617 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8); 618 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT8); 619 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 620 break; 621 case GL_RGB16UI_EXT: 622 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16); 623 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT16); 624 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 625 break; 626 case GL_RGB32UI_EXT: 627 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32); 628 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_UINT32); 629 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 630 break; 631 case GL_RGB8I_EXT: 632 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT8); 633 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT8); 634 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 635 break; 636 case GL_RGB16I_EXT: 637 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT16); 638 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT16); 639 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 640 break; 641 case GL_RGB32I_EXT: 642 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_SINT32); 643 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBX_SINT32); 644 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 645 break; 646 case GL_RGBA8UI_EXT: 647 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 648 break; 649 case GL_RGBA16UI_EXT: 650 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 651 break; 652 case GL_RGBA32UI_EXT: 653 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 654 break; 655 case GL_RGBA8I_EXT: 656 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT8); 657 break; 658 case GL_RGBA16I_EXT: 659 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT16); 660 break; 661 case GL_RGBA32I_EXT: 662 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_SINT32); 663 break; 664 665 case GL_R8: 666 case GL_RED: 667 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM8); 668 break; 669 670 case GL_COMPRESSED_RED: 671 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) 672 RETURN_IF_SUPPORTED(MESA_FORMAT_R_RGTC1_UNORM); 673 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM8); 674 break; 675 676 case GL_R16: 677 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UNORM16); 678 break; 679 680 case GL_RG: 681 case GL_RG8: 682 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_UNORM); 683 break; 684 685 case GL_COMPRESSED_RG: 686 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) 687 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2_UNORM); 688 RETURN_IF_SUPPORTED(MESA_FORMAT_R8G8_UNORM); 689 break; 690 691 case GL_RG16: 692 RETURN_IF_SUPPORTED(MESA_FORMAT_R16G16_UNORM); 693 break; 694 695 case GL_R16F: 696 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); 697 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 698 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); 699 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 700 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 701 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 702 break; 703 case GL_R32F: 704 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); 705 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 706 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 707 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); 708 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 709 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 710 break; 711 case GL_RG16F: 712 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 713 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 714 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 715 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 716 break; 717 case GL_RG32F: 718 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 719 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 720 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 721 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 722 break; 723 724 case GL_R8UI: 725 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8); 726 break; 727 case GL_RG8UI: 728 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8); 729 break; 730 case GL_R16UI: 731 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16); 732 break; 733 case GL_RG16UI: 734 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16); 735 break; 736 case GL_R32UI: 737 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32); 738 break; 739 case GL_RG32UI: 740 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32); 741 break; 742 case GL_R8I: 743 RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT8); 744 break; 745 case GL_RG8I: 746 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT8); 747 break; 748 case GL_R16I: 749 RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT16); 750 break; 751 case GL_RG16I: 752 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT16); 753 break; 754 case GL_R32I: 755 RETURN_IF_SUPPORTED(MESA_FORMAT_R_SINT32); 756 break; 757 case GL_RG32I: 758 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_SINT32); 759 break; 760 761 case GL_RGB10_A2UI: 762 RETURN_IF_SUPPORTED(MESA_FORMAT_B10G10R10A2_UINT); 763 RETURN_IF_SUPPORTED(MESA_FORMAT_R10G10B10A2_UINT); 764 break; 765 766 case GL_BGRA: 767 RETURN_IF_SUPPORTED(MESA_FORMAT_B8G8R8A8_UNORM); 768 break; 769 770 case GL_STENCIL_INDEX: 771 case GL_STENCIL_INDEX8: 772 RETURN_IF_SUPPORTED(MESA_FORMAT_S_UINT8); 773 break; 774 775 default: 776 /* For non-generic compressed format we assert two things: 777 * 778 * 1. The format has already been validated against the set of available 779 * extensions. 780 * 781 * 2. The driver only enables the extension if it supports all of the 782 * formats that are part of that extension. 783 */ 784 if (_mesa_is_compressed_format(ctx, internalFormat)) 785 return _mesa_glenum_to_compressed_format(internalFormat); 786 } 787 788 _mesa_problem(ctx, "unexpected format %s in _mesa_choose_tex_format()", 789 _mesa_enum_to_string(internalFormat)); 790 return MESA_FORMAT_NONE; 791 } 792
