texformat.c revision 71fe9437169cfdafda8814aa814bb85429fb6cfc
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 42#define RETURN_IF_SUPPORTED(f) do { \ 43 if (ctx->TextureFormatSupported[f]) \ 44 return f; \ 45} while (0) 46 47/** 48 * Choose an appropriate texture format given the format, type and 49 * internalFormat parameters passed to glTexImage(). 50 * 51 * \param ctx the GL context. 52 * \param target a texture target (GL_TEXTURE_x) 53 * \param internalFormat user's prefered internal texture format. 54 * \param format incoming image pixel format. 55 * \param type incoming image data type. 56 * 57 * \return the closest mesa_format for the given format/type arguments 58 * 59 * This is called via dd_function_table::ChooseTextureFormat. Hardware 60 * drivers may override this function with a specialized version. 61 */ 62mesa_format 63_mesa_choose_tex_format(struct gl_context *ctx, GLenum target, 64 GLint internalFormat, GLenum format, GLenum type) 65{ 66 (void) format; 67 68 switch (internalFormat) { 69 /* shallow RGBA formats */ 70 case 4: 71 case GL_RGBA: 72 if (type == GL_UNSIGNED_SHORT_4_4_4_4_REV) { 73 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); 74 } else if (type == GL_UNSIGNED_SHORT_1_5_5_5_REV) { 75 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); 76 } else if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { 77 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); 78 } 79 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); 80 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 81 break; 82 83 case GL_RGBA8: 84 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); 85 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 86 break; 87 case GL_RGB5_A1: 88 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555); 89 break; 90 case GL_RGBA2: 91 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV); /* just to test another format*/ 92 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); 93 break; 94 case GL_RGBA4: 95 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444); 96 break; 97 98 /* deep RGBA formats */ 99 case GL_RGB10_A2: 100 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); 101 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 102 break; 103 case GL_RGBA12: 104 case GL_RGBA16: 105 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); 106 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); 107 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); 108 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 109 break; 110 111 /* shallow RGB formats */ 112 case 3: 113 case GL_RGB: 114 if (type == GL_UNSIGNED_INT_2_10_10_10_REV) { 115 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010); 116 } 117 /* fallthrough */ 118 case GL_RGB8: 119 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); 120 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); 121 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 122 break; 123 case GL_R3_G3_B2: 124 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332); 125 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); 126 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); 127 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); 128 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); 129 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 130 break; 131 case GL_RGB4: 132 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV); /* just to test another format */ 133 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); 134 break; 135 case GL_RGB5: 136 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); 137 break; 138 139 /* deep RGB formats */ 140 case GL_RGB10: 141 case GL_RGB12: 142 case GL_RGB16: 143 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR16161616_UNORM); 144 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16); 145 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); 146 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 147 break; 148 149 /* Alpha formats */ 150 case GL_ALPHA: 151 case GL_ALPHA4: 152 case GL_ALPHA8: 153 RETURN_IF_SUPPORTED(MESA_FORMAT_A8); 154 break; 155 156 case GL_ALPHA12: 157 case GL_ALPHA16: 158 RETURN_IF_SUPPORTED(MESA_FORMAT_A16); 159 RETURN_IF_SUPPORTED(MESA_FORMAT_A8); 160 break; 161 162 /* Luminance formats */ 163 case 1: 164 case GL_LUMINANCE: 165 case GL_LUMINANCE4: 166 case GL_LUMINANCE8: 167 RETURN_IF_SUPPORTED(MESA_FORMAT_L8); 168 break; 169 170 case GL_LUMINANCE12: 171 case GL_LUMINANCE16: 172 RETURN_IF_SUPPORTED(MESA_FORMAT_L16); 173 RETURN_IF_SUPPORTED(MESA_FORMAT_L8); 174 break; 175 176 /* Luminance/Alpha formats */ 177 case GL_LUMINANCE4_ALPHA4: 178 RETURN_IF_SUPPORTED(MESA_FORMAT_AL44); 179 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); 180 break; 181 182 case 2: 183 case GL_LUMINANCE_ALPHA: 184 case GL_LUMINANCE6_ALPHA2: 185 case GL_LUMINANCE8_ALPHA8: 186 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); 187 break; 188 189 case GL_LUMINANCE12_ALPHA4: 190 case GL_LUMINANCE12_ALPHA12: 191 case GL_LUMINANCE16_ALPHA16: 192 RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616); 193 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); 194 break; 195 196 case GL_INTENSITY: 197 case GL_INTENSITY4: 198 case GL_INTENSITY8: 199 RETURN_IF_SUPPORTED(MESA_FORMAT_I8); 200 break; 201 202 case GL_INTENSITY12: 203 case GL_INTENSITY16: 204 RETURN_IF_SUPPORTED(MESA_FORMAT_I16); 205 RETURN_IF_SUPPORTED(MESA_FORMAT_I8); 206 break; 207 208 case GL_DEPTH_COMPONENT: 209 case GL_DEPTH_COMPONENT24: 210 case GL_DEPTH_COMPONENT32: 211 RETURN_IF_SUPPORTED(MESA_FORMAT_Z32); 212 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24); 213 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); 214 break; 215 case GL_DEPTH_COMPONENT16: 216 RETURN_IF_SUPPORTED(MESA_FORMAT_Z16); 217 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24); 218 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); 219 break; 220 221 case GL_COMPRESSED_ALPHA_ARB: 222 RETURN_IF_SUPPORTED(MESA_FORMAT_A8); 223 break; 224 case GL_COMPRESSED_LUMINANCE_ARB: 225 RETURN_IF_SUPPORTED(MESA_FORMAT_L8); 226 break; 227 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB: 228 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88); 229 break; 230 case GL_COMPRESSED_INTENSITY_ARB: 231 RETURN_IF_SUPPORTED(MESA_FORMAT_I8); 232 break; 233 case GL_COMPRESSED_RGB_ARB: 234 /* We don't use texture compression for 1D and 1D array textures. 235 * For 1D textures, compressions doesn't buy us much. 236 * For 1D ARRAY textures, there's complicated issues with updating 237 * sub-regions on non-block boundaries with glCopyTexSubImage, among 238 * other issues. FWIW, the GL_EXT_texture_array extension prohibits 239 * 1D ARRAY textures in S3TC format. 240 */ 241 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) { 242 if (ctx->Mesa_DXTn) 243 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1); 244 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1); 245 } 246 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888); 247 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888); 248 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 249 break; 250 case GL_COMPRESSED_RGBA_ARB: 251 /* We don't use texture compression for 1D and 1D array textures. */ 252 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) { 253 if (ctx->Mesa_DXTn) 254 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3); /* Not rgba_dxt1, see spec */ 255 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1); 256 } 257 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888); 258 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 259 break; 260 261 case GL_RGB565: 262 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565); 263 break; 264 265 case GL_YCBCR_MESA: 266 if (type == GL_UNSIGNED_SHORT_8_8_MESA) 267 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR); 268 else 269 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV); 270 break; 271 272 /* For non-generic compressed format we assert two things: 273 * 274 * 1. The format has already been validated against the set of available 275 * extensions. 276 * 277 * 2. The driver only enables the extension if it supports all of the 278 * formats that are part of that extension. 279 */ 280 case GL_COMPRESSED_RGB_FXT1_3DFX: 281 return MESA_FORMAT_RGB_FXT1; 282 case GL_COMPRESSED_RGBA_FXT1_3DFX: 283 return MESA_FORMAT_RGBA_FXT1; 284 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 285 case GL_RGB_S3TC: 286 case GL_RGB4_S3TC: 287 return MESA_FORMAT_RGB_DXT1; 288 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 289 return MESA_FORMAT_RGBA_DXT1; 290 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 291 case GL_RGBA_S3TC: 292 case GL_RGBA4_S3TC: 293 return MESA_FORMAT_RGBA_DXT3; 294 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 295 return MESA_FORMAT_RGBA_DXT5; 296 case GL_COMPRESSED_RED_RGTC1: 297 return MESA_FORMAT_RED_RGTC1; 298 case GL_COMPRESSED_SIGNED_RED_RGTC1: 299 return MESA_FORMAT_SIGNED_RED_RGTC1; 300 case GL_COMPRESSED_RG_RGTC2: 301 return MESA_FORMAT_RG_RGTC2; 302 case GL_COMPRESSED_SIGNED_RG_RGTC2: 303 return MESA_FORMAT_SIGNED_RG_RGTC2; 304 case GL_COMPRESSED_LUMINANCE_LATC1_EXT: 305 return MESA_FORMAT_L_LATC1; 306 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: 307 return MESA_FORMAT_SIGNED_L_LATC1; 308 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: 309 return MESA_FORMAT_LA_LATC2; 310 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: 311 return MESA_FORMAT_SIGNED_LA_LATC2; 312 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: 313 return MESA_FORMAT_LA_LATC2; 314 case GL_ETC1_RGB8_OES: 315 return MESA_FORMAT_ETC1_RGB8; 316 case GL_COMPRESSED_RGB8_ETC2: 317 return MESA_FORMAT_ETC2_RGB8; 318 case GL_COMPRESSED_SRGB8_ETC2: 319 return MESA_FORMAT_ETC2_SRGB8; 320 case GL_COMPRESSED_RGBA8_ETC2_EAC: 321 return MESA_FORMAT_ETC2_RGBA8_EAC; 322 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC: 323 return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC; 324 case GL_COMPRESSED_R11_EAC: 325 return MESA_FORMAT_ETC2_R11_EAC; 326 case GL_COMPRESSED_RG11_EAC: 327 return MESA_FORMAT_ETC2_RG11_EAC; 328 case GL_COMPRESSED_SIGNED_R11_EAC: 329 return MESA_FORMAT_ETC2_SIGNED_R11_EAC; 330 case GL_COMPRESSED_SIGNED_RG11_EAC: 331 return MESA_FORMAT_ETC2_SIGNED_RG11_EAC; 332 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2: 333 return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1; 334 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2: 335 return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1; 336 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: 337 return MESA_FORMAT_SRGB_DXT1; 338 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 339 return MESA_FORMAT_SRGBA_DXT1; 340 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 341 return MESA_FORMAT_SRGBA_DXT3; 342 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 343 return MESA_FORMAT_SRGBA_DXT5; 344 345 case GL_ALPHA16F_ARB: 346 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); 347 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); 348 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 349 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 350 break; 351 case GL_ALPHA32F_ARB: 352 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32); 353 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 354 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16); 355 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 356 break; 357 case GL_LUMINANCE16F_ARB: 358 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); 359 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); 360 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 361 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 362 break; 363 case GL_LUMINANCE32F_ARB: 364 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32); 365 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 366 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16); 367 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 368 break; 369 case GL_LUMINANCE_ALPHA16F_ARB: 370 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); 371 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); 372 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 373 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 374 break; 375 case GL_LUMINANCE_ALPHA32F_ARB: 376 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32); 377 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 378 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16); 379 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 380 break; 381 case GL_INTENSITY16F_ARB: 382 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); 383 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); 384 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 385 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 386 break; 387 case GL_INTENSITY32F_ARB: 388 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32); 389 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 390 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16); 391 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 392 break; 393 case GL_RGB16F_ARB: 394 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); 395 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR16161616_FLOAT); 396 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 397 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); 398 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 399 break; 400 case GL_RGB32F_ARB: 401 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32); 402 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR32323232_FLOAT); 403 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 404 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16); 405 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 406 break; 407 case GL_RGBA16F_ARB: 408 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 409 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 410 break; 411 case GL_RGBA32F_ARB: 412 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 413 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 414 break; 415 416 case GL_RGB9_E5: 417 /* GL_EXT_texture_shared_exponent -- just one format to support */ 418 ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_RGB9_E5_FLOAT]); 419 return MESA_FORMAT_RGB9_E5_FLOAT; 420 421 case GL_R11F_G11F_B10F: 422 /* GL_EXT_texture_packed_float -- just one format to support */ 423 ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_R11_G11_B10_FLOAT]); 424 return MESA_FORMAT_R11_G11_B10_FLOAT; 425 426 case GL_DEPTH_STENCIL_EXT: 427 case GL_DEPTH24_STENCIL8_EXT: 428 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8); 429 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24); 430 break; 431 432 case GL_DEPTH_COMPONENT32F: 433 ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT]); 434 return MESA_FORMAT_Z32_FLOAT; 435 case GL_DEPTH32F_STENCIL8: 436 ASSERT(ctx->TextureFormatSupported[MESA_FORMAT_Z32_FLOAT_X24S8]); 437 return MESA_FORMAT_Z32_FLOAT_X24S8; 438 439 case GL_DUDV_ATI: 440 case GL_DU8DV8_ATI: 441 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8); 442 break; 443 444 case GL_RED_SNORM: 445 case GL_R8_SNORM: 446 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8); 447 break; 448 case GL_RG_SNORM: 449 case GL_RG8_SNORM: 450 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV); 451 break; 452 case GL_RGB_SNORM: 453 case GL_RGB8_SNORM: 454 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); 455 /* FALLTHROUGH */ 456 case GL_RGBA_SNORM: 457 case GL_RGBA8_SNORM: 458 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 459 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 460 break; 461 case GL_ALPHA_SNORM: 462 case GL_ALPHA8_SNORM: 463 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8); 464 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 465 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 466 break; 467 case GL_LUMINANCE_SNORM: 468 case GL_LUMINANCE8_SNORM: 469 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8); 470 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888); 471 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 472 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 473 break; 474 case GL_LUMINANCE_ALPHA_SNORM: 475 case GL_LUMINANCE8_ALPHA8_SNORM: 476 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88); 477 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 478 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 479 break; 480 case GL_INTENSITY_SNORM: 481 case GL_INTENSITY8_SNORM: 482 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8); 483 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 484 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 485 break; 486 case GL_R16_SNORM: 487 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16); 488 break; 489 case GL_RG16_SNORM: 490 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616); 491 break; 492 case GL_RGB16_SNORM: 493 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16); 494 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR16161616_SNORM); 495 /* FALLTHROUGH */ 496 case GL_RGBA16_SNORM: 497 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); 498 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 499 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 500 break; 501 case GL_ALPHA16_SNORM: 502 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16); 503 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); 504 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 505 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 506 break; 507 case GL_LUMINANCE16_SNORM: 508 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16); 509 /* FALLTHROUGH */ 510 case GL_LUMINANCE16_ALPHA16_SNORM: 511 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616); 512 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); 513 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 514 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 515 break; 516 case GL_INTENSITY16_SNORM: 517 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16); 518 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16); 519 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888); 520 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV); 521 break; 522 523 case GL_SRGB_EXT: 524 case GL_SRGB8_EXT: 525 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); 526 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 527 break; 528 case GL_SRGB_ALPHA_EXT: 529 case GL_SRGB8_ALPHA8_EXT: 530 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); 531 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 532 break; 533 case GL_SLUMINANCE_EXT: 534 case GL_SLUMINANCE8_EXT: 535 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); 536 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 537 break; 538 case GL_SLUMINANCE_ALPHA_EXT: 539 case GL_SLUMINANCE8_ALPHA8_EXT: 540 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); 541 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 542 break; 543 case GL_COMPRESSED_SLUMINANCE_EXT: 544 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8); 545 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 546 break; 547 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 548 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8); 549 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 550 break; 551 case GL_COMPRESSED_SRGB_EXT: 552 if (ctx->Mesa_DXTn) 553 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1); 554 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8); 555 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 556 break; 557 case GL_COMPRESSED_SRGB_ALPHA_EXT: 558 if (ctx->Mesa_DXTn) 559 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3); /* Not srgba_dxt1, see spec */ 560 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8); 561 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8); 562 break; 563 564 case GL_ALPHA8UI_EXT: 565 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8); 566 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 567 break; 568 case GL_ALPHA16UI_EXT: 569 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16); 570 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 571 break; 572 case GL_ALPHA32UI_EXT: 573 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32); 574 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 575 break; 576 case GL_ALPHA8I_EXT: 577 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8); 578 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 579 break; 580 case GL_ALPHA16I_EXT: 581 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16); 582 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 583 break; 584 case GL_ALPHA32I_EXT: 585 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32); 586 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 587 break; 588 case GL_LUMINANCE8UI_EXT: 589 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8); 590 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 591 break; 592 case GL_LUMINANCE16UI_EXT: 593 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16); 594 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 595 break; 596 case GL_LUMINANCE32UI_EXT: 597 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32); 598 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 599 break; 600 case GL_LUMINANCE8I_EXT: 601 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8); 602 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 603 break; 604 case GL_LUMINANCE16I_EXT: 605 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16); 606 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 607 break; 608 case GL_LUMINANCE32I_EXT: 609 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32); 610 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 611 break; 612 case GL_LUMINANCE_ALPHA8UI_EXT: 613 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8); 614 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 615 break; 616 case GL_LUMINANCE_ALPHA16UI_EXT: 617 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16); 618 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 619 break; 620 case GL_LUMINANCE_ALPHA32UI_EXT: 621 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32); 622 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 623 break; 624 case GL_LUMINANCE_ALPHA8I_EXT: 625 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8); 626 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 627 break; 628 case GL_LUMINANCE_ALPHA16I_EXT: 629 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16); 630 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 631 break; 632 case GL_LUMINANCE_ALPHA32I_EXT: 633 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32); 634 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 635 break; 636 case GL_INTENSITY8UI_EXT: 637 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8); 638 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 639 break; 640 case GL_INTENSITY16UI_EXT: 641 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16); 642 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 643 break; 644 case GL_INTENSITY32UI_EXT: 645 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32); 646 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 647 break; 648 case GL_INTENSITY8I_EXT: 649 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8); 650 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 651 break; 652 case GL_INTENSITY16I_EXT: 653 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16); 654 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 655 break; 656 case GL_INTENSITY32I_EXT: 657 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32); 658 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 659 break; 660 661 case GL_RGB8UI_EXT: 662 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8); 663 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR8888_UINT); 664 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 665 break; 666 case GL_RGB16UI_EXT: 667 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16); 668 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR16161616_UINT); 669 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 670 break; 671 case GL_RGB32UI_EXT: 672 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32); 673 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR32323232_UINT); 674 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 675 break; 676 case GL_RGB8I_EXT: 677 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8); 678 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR8888_SINT); 679 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 680 break; 681 case GL_RGB16I_EXT: 682 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16); 683 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR16161616_SINT); 684 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 685 break; 686 case GL_RGB32I_EXT: 687 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32); 688 RETURN_IF_SUPPORTED(MESA_FORMAT_XBGR32323232_SINT); 689 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 690 break; 691 case GL_RGBA8UI_EXT: 692 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8); 693 break; 694 case GL_RGBA16UI_EXT: 695 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16); 696 break; 697 case GL_RGBA32UI_EXT: 698 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32); 699 break; 700 case GL_RGBA8I_EXT: 701 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8); 702 break; 703 case GL_RGBA16I_EXT: 704 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16); 705 break; 706 case GL_RGBA32I_EXT: 707 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32); 708 break; 709 710 case GL_R8: 711 case GL_RED: 712 RETURN_IF_SUPPORTED(MESA_FORMAT_R8); 713 break; 714 715 case GL_COMPRESSED_RED: 716 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) 717 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1); 718 RETURN_IF_SUPPORTED(MESA_FORMAT_R8); 719 break; 720 721 case GL_R16: 722 RETURN_IF_SUPPORTED(MESA_FORMAT_R16); 723 break; 724 725 case GL_RG: 726 case GL_RG8: 727 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88); 728 break; 729 730 case GL_COMPRESSED_RG: 731 if (target != GL_TEXTURE_1D && target != GL_TEXTURE_1D_ARRAY) 732 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2); 733 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88); 734 break; 735 736 case GL_RG16: 737 RETURN_IF_SUPPORTED(MESA_FORMAT_GR1616); 738 break; 739 740 case GL_R16F: 741 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); 742 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 743 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); 744 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 745 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 746 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 747 break; 748 case GL_R32F: 749 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32); 750 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 751 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 752 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16); 753 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 754 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 755 break; 756 case GL_RG16F: 757 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 758 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 759 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 760 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 761 break; 762 case GL_RG32F: 763 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32); 764 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32); 765 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16); 766 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16); 767 break; 768 769 case GL_R8UI: 770 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8); 771 break; 772 case GL_RG8UI: 773 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8); 774 break; 775 case GL_R16UI: 776 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16); 777 break; 778 case GL_RG16UI: 779 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16); 780 break; 781 case GL_R32UI: 782 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32); 783 break; 784 case GL_RG32UI: 785 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32); 786 break; 787 case GL_R8I: 788 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT8); 789 break; 790 case GL_RG8I: 791 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8); 792 break; 793 case GL_R16I: 794 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16); 795 break; 796 case GL_RG16I: 797 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16); 798 break; 799 case GL_R32I: 800 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32); 801 break; 802 case GL_RG32I: 803 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32); 804 break; 805 806 case GL_RGB10_A2UI: 807 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010_UINT); 808 RETURN_IF_SUPPORTED(MESA_FORMAT_ABGR2101010_UINT); 809 break; 810 811 case GL_BGRA: 812 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888); 813 break; 814 } 815 816 _mesa_problem(ctx, "unexpected format %s in _mesa_choose_tex_format()", 817 _mesa_lookup_enum_by_nr(internalFormat)); 818 return MESA_FORMAT_NONE; 819} 820 821GLboolean 822_mesa_tex_target_is_array(GLenum target) 823{ 824 switch (target) { 825 case GL_TEXTURE_1D_ARRAY_EXT: 826 case GL_TEXTURE_2D_ARRAY_EXT: 827 case GL_TEXTURE_2D_MULTISAMPLE_ARRAY: 828 case GL_TEXTURE_CUBE_MAP_ARRAY: 829 return GL_TRUE; 830 default: 831 return GL_FALSE; 832 } 833} 834