teximage.c revision 0686ccac950bac1a650400b29c47ddaafea22fa9
1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 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 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26/** 27 * \file teximage.c 28 * Texture image-related functions. 29 */ 30 31#include <stdbool.h> 32#include "glheader.h" 33#include "bufferobj.h" 34#include "context.h" 35#include "enums.h" 36#include "fbobject.h" 37#include "framebuffer.h" 38#include "hash.h" 39#include "image.h" 40#include "imports.h" 41#include "macros.h" 42#include "mfeatures.h" 43#include "state.h" 44#include "texcompress.h" 45#include "teximage.h" 46#include "texobj.h" 47#include "texstate.h" 48#include "texpal.h" 49#include "mtypes.h" 50#include "glformats.h" 51 52 53/** 54 * State changes which we care about for glCopyTex[Sub]Image() calls. 55 * In particular, we care about pixel transfer state and buffer state 56 * (such as glReadBuffer to make sure we read from the right renderbuffer). 57 */ 58#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL) 59 60 61 62/** 63 * Return the simple base format for a given internal texture format. 64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. 65 * 66 * \param ctx GL context. 67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4. 68 * 69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, 70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. 71 * 72 * This is the format which is used during texture application (i.e. the 73 * texture format and env mode determine the arithmetic used. 74 */ 75GLint 76_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat ) 77{ 78 switch (internalFormat) { 79 case GL_ALPHA: 80 case GL_ALPHA4: 81 case GL_ALPHA8: 82 case GL_ALPHA12: 83 case GL_ALPHA16: 84 return GL_ALPHA; 85 case 1: 86 case GL_LUMINANCE: 87 case GL_LUMINANCE4: 88 case GL_LUMINANCE8: 89 case GL_LUMINANCE12: 90 case GL_LUMINANCE16: 91 return GL_LUMINANCE; 92 case 2: 93 case GL_LUMINANCE_ALPHA: 94 case GL_LUMINANCE4_ALPHA4: 95 case GL_LUMINANCE6_ALPHA2: 96 case GL_LUMINANCE8_ALPHA8: 97 case GL_LUMINANCE12_ALPHA4: 98 case GL_LUMINANCE12_ALPHA12: 99 case GL_LUMINANCE16_ALPHA16: 100 return GL_LUMINANCE_ALPHA; 101 case GL_INTENSITY: 102 case GL_INTENSITY4: 103 case GL_INTENSITY8: 104 case GL_INTENSITY12: 105 case GL_INTENSITY16: 106 return GL_INTENSITY; 107 case 3: 108 case GL_RGB: 109 case GL_R3_G3_B2: 110 case GL_RGB4: 111 case GL_RGB5: 112 case GL_RGB8: 113 case GL_RGB10: 114 case GL_RGB12: 115 case GL_RGB16: 116 return GL_RGB; 117 case 4: 118 case GL_RGBA: 119 case GL_RGBA2: 120 case GL_RGBA4: 121 case GL_RGB5_A1: 122 case GL_RGBA8: 123 case GL_RGB10_A2: 124 case GL_RGBA12: 125 case GL_RGBA16: 126 return GL_RGBA; 127 default: 128 ; /* fallthrough */ 129 } 130 131 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). 132 */ 133 if (_mesa_is_gles(ctx)) { 134 switch (internalFormat) { 135 case GL_BGRA: 136 return GL_RGBA; 137 default: 138 ; /* fallthrough */ 139 } 140 } 141 142 if (ctx->Extensions.ARB_ES2_compatibility) { 143 switch (internalFormat) { 144 case GL_RGB565: 145 return GL_RGB; 146 default: 147 ; /* fallthrough */ 148 } 149 } 150 151 if (ctx->Extensions.ARB_depth_texture) { 152 switch (internalFormat) { 153 case GL_DEPTH_COMPONENT: 154 case GL_DEPTH_COMPONENT16: 155 case GL_DEPTH_COMPONENT24: 156 case GL_DEPTH_COMPONENT32: 157 return GL_DEPTH_COMPONENT; 158 default: 159 ; /* fallthrough */ 160 } 161 } 162 163 switch (internalFormat) { 164 case GL_COMPRESSED_ALPHA: 165 return GL_ALPHA; 166 case GL_COMPRESSED_LUMINANCE: 167 return GL_LUMINANCE; 168 case GL_COMPRESSED_LUMINANCE_ALPHA: 169 return GL_LUMINANCE_ALPHA; 170 case GL_COMPRESSED_INTENSITY: 171 return GL_INTENSITY; 172 case GL_COMPRESSED_RGB: 173 return GL_RGB; 174 case GL_COMPRESSED_RGBA: 175 return GL_RGBA; 176 default: 177 ; /* fallthrough */ 178 } 179 180 if (ctx->Extensions.TDFX_texture_compression_FXT1) { 181 switch (internalFormat) { 182 case GL_COMPRESSED_RGB_FXT1_3DFX: 183 return GL_RGB; 184 case GL_COMPRESSED_RGBA_FXT1_3DFX: 185 return GL_RGBA; 186 default: 187 ; /* fallthrough */ 188 } 189 } 190 191 if (ctx->Extensions.EXT_texture_compression_s3tc) { 192 switch (internalFormat) { 193 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 194 return GL_RGB; 195 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 196 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 197 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 198 return GL_RGBA; 199 default: 200 ; /* fallthrough */ 201 } 202 } 203 204 if (ctx->Extensions.S3_s3tc) { 205 switch (internalFormat) { 206 case GL_RGB_S3TC: 207 case GL_RGB4_S3TC: 208 return GL_RGB; 209 case GL_RGBA_S3TC: 210 case GL_RGBA4_S3TC: 211 return GL_RGBA; 212 default: 213 ; /* fallthrough */ 214 } 215 } 216 217 if (ctx->Extensions.MESA_ycbcr_texture) { 218 if (internalFormat == GL_YCBCR_MESA) 219 return GL_YCBCR_MESA; 220 } 221 222 if (ctx->Extensions.ARB_texture_float) { 223 switch (internalFormat) { 224 case GL_ALPHA16F_ARB: 225 case GL_ALPHA32F_ARB: 226 return GL_ALPHA; 227 case GL_RGBA16F_ARB: 228 case GL_RGBA32F_ARB: 229 return GL_RGBA; 230 case GL_RGB16F_ARB: 231 case GL_RGB32F_ARB: 232 return GL_RGB; 233 case GL_INTENSITY16F_ARB: 234 case GL_INTENSITY32F_ARB: 235 return GL_INTENSITY; 236 case GL_LUMINANCE16F_ARB: 237 case GL_LUMINANCE32F_ARB: 238 return GL_LUMINANCE; 239 case GL_LUMINANCE_ALPHA16F_ARB: 240 case GL_LUMINANCE_ALPHA32F_ARB: 241 return GL_LUMINANCE_ALPHA; 242 default: 243 ; /* fallthrough */ 244 } 245 } 246 247 if (ctx->Extensions.ATI_envmap_bumpmap) { 248 switch (internalFormat) { 249 case GL_DUDV_ATI: 250 case GL_DU8DV8_ATI: 251 return GL_DUDV_ATI; 252 default: 253 ; /* fallthrough */ 254 } 255 } 256 257 if (ctx->Extensions.EXT_texture_snorm) { 258 switch (internalFormat) { 259 case GL_RED_SNORM: 260 case GL_R8_SNORM: 261 case GL_R16_SNORM: 262 return GL_RED; 263 case GL_RG_SNORM: 264 case GL_RG8_SNORM: 265 case GL_RG16_SNORM: 266 return GL_RG; 267 case GL_RGB_SNORM: 268 case GL_RGB8_SNORM: 269 case GL_RGB16_SNORM: 270 return GL_RGB; 271 case GL_RGBA_SNORM: 272 case GL_RGBA8_SNORM: 273 case GL_RGBA16_SNORM: 274 return GL_RGBA; 275 case GL_ALPHA_SNORM: 276 case GL_ALPHA8_SNORM: 277 case GL_ALPHA16_SNORM: 278 return GL_ALPHA; 279 case GL_LUMINANCE_SNORM: 280 case GL_LUMINANCE8_SNORM: 281 case GL_LUMINANCE16_SNORM: 282 return GL_LUMINANCE; 283 case GL_LUMINANCE_ALPHA_SNORM: 284 case GL_LUMINANCE8_ALPHA8_SNORM: 285 case GL_LUMINANCE16_ALPHA16_SNORM: 286 return GL_LUMINANCE_ALPHA; 287 case GL_INTENSITY_SNORM: 288 case GL_INTENSITY8_SNORM: 289 case GL_INTENSITY16_SNORM: 290 return GL_INTENSITY; 291 default: 292 ; /* fallthrough */ 293 } 294 } 295 296 if (ctx->Extensions.EXT_packed_depth_stencil) { 297 switch (internalFormat) { 298 case GL_DEPTH_STENCIL_EXT: 299 case GL_DEPTH24_STENCIL8_EXT: 300 return GL_DEPTH_STENCIL_EXT; 301 default: 302 ; /* fallthrough */ 303 } 304 } 305 306#if FEATURE_EXT_texture_sRGB 307 if (ctx->Extensions.EXT_texture_sRGB) { 308 switch (internalFormat) { 309 case GL_SRGB_EXT: 310 case GL_SRGB8_EXT: 311 case GL_COMPRESSED_SRGB_EXT: 312 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: 313 return GL_RGB; 314 case GL_SRGB_ALPHA_EXT: 315 case GL_SRGB8_ALPHA8_EXT: 316 case GL_COMPRESSED_SRGB_ALPHA_EXT: 317 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 318 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 319 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 320 return GL_RGBA; 321 case GL_SLUMINANCE_ALPHA_EXT: 322 case GL_SLUMINANCE8_ALPHA8_EXT: 323 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 324 return GL_LUMINANCE_ALPHA; 325 case GL_SLUMINANCE_EXT: 326 case GL_SLUMINANCE8_EXT: 327 case GL_COMPRESSED_SLUMINANCE_EXT: 328 return GL_LUMINANCE; 329 default: 330 ; /* fallthrough */ 331 } 332 } 333#endif /* FEATURE_EXT_texture_sRGB */ 334 335 if (ctx->Version >= 30 || 336 ctx->Extensions.EXT_texture_integer) { 337 switch (internalFormat) { 338 case GL_RGBA8UI_EXT: 339 case GL_RGBA16UI_EXT: 340 case GL_RGBA32UI_EXT: 341 case GL_RGBA8I_EXT: 342 case GL_RGBA16I_EXT: 343 case GL_RGBA32I_EXT: 344 case GL_RGB10_A2UI: 345 return GL_RGBA; 346 case GL_RGB8UI_EXT: 347 case GL_RGB16UI_EXT: 348 case GL_RGB32UI_EXT: 349 case GL_RGB8I_EXT: 350 case GL_RGB16I_EXT: 351 case GL_RGB32I_EXT: 352 return GL_RGB; 353 } 354 } 355 356 if (ctx->Extensions.EXT_texture_integer) { 357 switch (internalFormat) { 358 case GL_ALPHA8UI_EXT: 359 case GL_ALPHA16UI_EXT: 360 case GL_ALPHA32UI_EXT: 361 case GL_ALPHA8I_EXT: 362 case GL_ALPHA16I_EXT: 363 case GL_ALPHA32I_EXT: 364 return GL_ALPHA; 365 case GL_INTENSITY8UI_EXT: 366 case GL_INTENSITY16UI_EXT: 367 case GL_INTENSITY32UI_EXT: 368 case GL_INTENSITY8I_EXT: 369 case GL_INTENSITY16I_EXT: 370 case GL_INTENSITY32I_EXT: 371 return GL_INTENSITY; 372 case GL_LUMINANCE8UI_EXT: 373 case GL_LUMINANCE16UI_EXT: 374 case GL_LUMINANCE32UI_EXT: 375 case GL_LUMINANCE8I_EXT: 376 case GL_LUMINANCE16I_EXT: 377 case GL_LUMINANCE32I_EXT: 378 return GL_LUMINANCE; 379 case GL_LUMINANCE_ALPHA8UI_EXT: 380 case GL_LUMINANCE_ALPHA16UI_EXT: 381 case GL_LUMINANCE_ALPHA32UI_EXT: 382 case GL_LUMINANCE_ALPHA8I_EXT: 383 case GL_LUMINANCE_ALPHA16I_EXT: 384 case GL_LUMINANCE_ALPHA32I_EXT: 385 return GL_LUMINANCE_ALPHA; 386 default: 387 ; /* fallthrough */ 388 } 389 } 390 391 if (ctx->Extensions.ARB_texture_rg) { 392 switch (internalFormat) { 393 case GL_R16F: 394 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float. 395 */ 396 if (!ctx->Extensions.ARB_half_float_pixel) 397 break; 398 /* FALLTHROUGH */ 399 case GL_R32F: 400 if (!ctx->Extensions.ARB_texture_float) 401 break; 402 return GL_RED; 403 case GL_R8I: 404 case GL_R8UI: 405 case GL_R16I: 406 case GL_R16UI: 407 case GL_R32I: 408 case GL_R32UI: 409 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 410 break; 411 /* FALLTHROUGH */ 412 case GL_R8: 413 case GL_R16: 414 case GL_RED: 415 case GL_COMPRESSED_RED: 416 return GL_RED; 417 418 case GL_RG16F: 419 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float. 420 */ 421 if (!ctx->Extensions.ARB_half_float_pixel) 422 break; 423 /* FALLTHROUGH */ 424 case GL_RG32F: 425 if (!ctx->Extensions.ARB_texture_float) 426 break; 427 return GL_RG; 428 case GL_RG8I: 429 case GL_RG8UI: 430 case GL_RG16I: 431 case GL_RG16UI: 432 case GL_RG32I: 433 case GL_RG32UI: 434 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 435 break; 436 /* FALLTHROUGH */ 437 case GL_RG: 438 case GL_RG8: 439 case GL_RG16: 440 case GL_COMPRESSED_RG: 441 return GL_RG; 442 default: 443 ; /* fallthrough */ 444 } 445 } 446 447 if (ctx->Extensions.EXT_texture_shared_exponent) { 448 switch (internalFormat) { 449 case GL_RGB9_E5_EXT: 450 return GL_RGB; 451 default: 452 ; /* fallthrough */ 453 } 454 } 455 456 if (ctx->Extensions.EXT_packed_float) { 457 switch (internalFormat) { 458 case GL_R11F_G11F_B10F_EXT: 459 return GL_RGB; 460 default: 461 ; /* fallthrough */ 462 } 463 } 464 465 if (ctx->Extensions.ARB_depth_buffer_float) { 466 switch (internalFormat) { 467 case GL_DEPTH_COMPONENT32F: 468 return GL_DEPTH_COMPONENT; 469 case GL_DEPTH32F_STENCIL8: 470 return GL_DEPTH_STENCIL; 471 default: 472 ; /* fallthrough */ 473 } 474 } 475 476 if (ctx->Extensions.ARB_texture_compression_rgtc) { 477 switch (internalFormat) { 478 case GL_COMPRESSED_RED_RGTC1: 479 case GL_COMPRESSED_SIGNED_RED_RGTC1: 480 return GL_RED; 481 case GL_COMPRESSED_RG_RGTC2: 482 case GL_COMPRESSED_SIGNED_RG_RGTC2: 483 return GL_RG; 484 default: 485 ; /* fallthrough */ 486 } 487 } 488 489 if (ctx->Extensions.EXT_texture_compression_latc) { 490 switch (internalFormat) { 491 case GL_COMPRESSED_LUMINANCE_LATC1_EXT: 492 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: 493 return GL_LUMINANCE; 494 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: 495 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: 496 return GL_LUMINANCE_ALPHA; 497 default: 498 ; /* fallthrough */ 499 } 500 } 501 502 if (ctx->Extensions.ATI_texture_compression_3dc) { 503 switch (internalFormat) { 504 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: 505 return GL_LUMINANCE_ALPHA; 506 default: 507 ; /* fallthrough */ 508 } 509 } 510 511 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) { 512 switch (internalFormat) { 513 case GL_ETC1_RGB8_OES: 514 return GL_RGB; 515 default: 516 ; /* fallthrough */ 517 } 518 } 519 520 if (ctx->API == API_OPENGLES) { 521 switch (internalFormat) { 522 case GL_PALETTE4_RGB8_OES: 523 case GL_PALETTE4_R5_G6_B5_OES: 524 case GL_PALETTE8_RGB8_OES: 525 case GL_PALETTE8_R5_G6_B5_OES: 526 return GL_RGB; 527 case GL_PALETTE4_RGBA8_OES: 528 case GL_PALETTE8_RGB5_A1_OES: 529 case GL_PALETTE4_RGBA4_OES: 530 case GL_PALETTE4_RGB5_A1_OES: 531 case GL_PALETTE8_RGBA8_OES: 532 case GL_PALETTE8_RGBA4_OES: 533 return GL_RGBA; 534 default: 535 ; /* fallthrough */ 536 } 537 } 538 539 return -1; /* error */ 540} 541 542 543/** 544 * For cube map faces, return a face index in [0,5]. 545 * For other targets return 0; 546 */ 547GLuint 548_mesa_tex_target_to_face(GLenum target) 549{ 550 if (_mesa_is_cube_face(target)) 551 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 552 else 553 return 0; 554} 555 556 557 558/** 559 * Install gl_texture_image in a gl_texture_object according to the target 560 * and level parameters. 561 * 562 * \param tObj texture object. 563 * \param target texture target. 564 * \param level image level. 565 * \param texImage texture image. 566 */ 567static void 568set_tex_image(struct gl_texture_object *tObj, 569 GLenum target, GLint level, 570 struct gl_texture_image *texImage) 571{ 572 const GLuint face = _mesa_tex_target_to_face(target); 573 574 ASSERT(tObj); 575 ASSERT(texImage); 576 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES) 577 assert(level == 0); 578 579 tObj->Image[face][level] = texImage; 580 581 /* Set the 'back' pointer */ 582 texImage->TexObject = tObj; 583 texImage->Level = level; 584 texImage->Face = face; 585} 586 587 588/** 589 * Allocate a texture image structure. 590 * 591 * Called via ctx->Driver.NewTextureImage() unless overriden by a device 592 * driver. 593 * 594 * \return a pointer to gl_texture_image struct with all fields initialized to 595 * zero. 596 */ 597struct gl_texture_image * 598_mesa_new_texture_image( struct gl_context *ctx ) 599{ 600 (void) ctx; 601 return CALLOC_STRUCT(gl_texture_image); 602} 603 604 605/** 606 * Free a gl_texture_image and associated data. 607 * This function is a fallback called via ctx->Driver.DeleteTextureImage(). 608 * 609 * \param texImage texture image. 610 * 611 * Free the texture image structure and the associated image data. 612 */ 613void 614_mesa_delete_texture_image(struct gl_context *ctx, 615 struct gl_texture_image *texImage) 616{ 617 /* Free texImage->Data and/or any other driver-specific texture 618 * image storage. 619 */ 620 ASSERT(ctx->Driver.FreeTextureImageBuffer); 621 ctx->Driver.FreeTextureImageBuffer( ctx, texImage ); 622 free(texImage); 623} 624 625 626/** 627 * Test if a target is a proxy target. 628 * 629 * \param target texture target. 630 * 631 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. 632 */ 633GLboolean 634_mesa_is_proxy_texture(GLenum target) 635{ 636 /* 637 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no 638 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES. 639 */ 640 assert(NUM_TEXTURE_TARGETS == 7 + 2); 641 642 return (target == GL_PROXY_TEXTURE_1D || 643 target == GL_PROXY_TEXTURE_2D || 644 target == GL_PROXY_TEXTURE_3D || 645 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB || 646 target == GL_PROXY_TEXTURE_RECTANGLE_NV || 647 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT || 648 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT); 649} 650 651 652/** 653 * Return the proxy target which corresponds to the given texture target 654 */ 655static GLenum 656get_proxy_target(GLenum target) 657{ 658 switch (target) { 659 case GL_TEXTURE_1D: 660 case GL_PROXY_TEXTURE_1D: 661 return GL_PROXY_TEXTURE_1D; 662 case GL_TEXTURE_2D: 663 case GL_PROXY_TEXTURE_2D: 664 return GL_PROXY_TEXTURE_2D; 665 case GL_TEXTURE_3D: 666 case GL_PROXY_TEXTURE_3D: 667 return GL_PROXY_TEXTURE_3D; 668 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 669 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 670 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 671 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 672 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 673 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 674 case GL_TEXTURE_CUBE_MAP_ARB: 675 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 676 return GL_PROXY_TEXTURE_CUBE_MAP_ARB; 677 case GL_TEXTURE_RECTANGLE_NV: 678 case GL_PROXY_TEXTURE_RECTANGLE_NV: 679 return GL_PROXY_TEXTURE_RECTANGLE_NV; 680 case GL_TEXTURE_1D_ARRAY_EXT: 681 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 682 return GL_PROXY_TEXTURE_1D_ARRAY_EXT; 683 case GL_TEXTURE_2D_ARRAY_EXT: 684 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 685 return GL_PROXY_TEXTURE_2D_ARRAY_EXT; 686 default: 687 _mesa_problem(NULL, "unexpected target in get_proxy_target()"); 688 return 0; 689 } 690} 691 692 693/** 694 * Get the texture object that corresponds to the target of the given 695 * texture unit. The target should have already been checked for validity. 696 * 697 * \param ctx GL context. 698 * \param texUnit texture unit. 699 * \param target texture target. 700 * 701 * \return pointer to the texture object on success, or NULL on failure. 702 */ 703struct gl_texture_object * 704_mesa_select_tex_object(struct gl_context *ctx, 705 const struct gl_texture_unit *texUnit, 706 GLenum target) 707{ 708 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array || 709 ctx->Extensions.EXT_texture_array); 710 711 switch (target) { 712 case GL_TEXTURE_1D: 713 return texUnit->CurrentTex[TEXTURE_1D_INDEX]; 714 case GL_PROXY_TEXTURE_1D: 715 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]; 716 case GL_TEXTURE_2D: 717 return texUnit->CurrentTex[TEXTURE_2D_INDEX]; 718 case GL_PROXY_TEXTURE_2D: 719 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]; 720 case GL_TEXTURE_3D: 721 return texUnit->CurrentTex[TEXTURE_3D_INDEX]; 722 case GL_PROXY_TEXTURE_3D: 723 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]; 724 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 725 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 726 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 727 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 728 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 729 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 730 case GL_TEXTURE_CUBE_MAP_ARB: 731 return ctx->Extensions.ARB_texture_cube_map 732 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL; 733 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 734 return ctx->Extensions.ARB_texture_cube_map 735 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL; 736 case GL_TEXTURE_RECTANGLE_NV: 737 return ctx->Extensions.NV_texture_rectangle 738 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL; 739 case GL_PROXY_TEXTURE_RECTANGLE_NV: 740 return ctx->Extensions.NV_texture_rectangle 741 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL; 742 case GL_TEXTURE_1D_ARRAY_EXT: 743 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 744 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 745 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 746 case GL_TEXTURE_2D_ARRAY_EXT: 747 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 748 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 749 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 750 case GL_TEXTURE_BUFFER: 751 return ctx->Extensions.ARB_texture_buffer_object 752 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL; 753 case GL_TEXTURE_EXTERNAL_OES: 754 return ctx->Extensions.OES_EGL_image_external 755 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL; 756 default: 757 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); 758 return NULL; 759 } 760} 761 762 763/** 764 * Return pointer to texture object for given target on current texture unit. 765 */ 766struct gl_texture_object * 767_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target) 768{ 769 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 770 return _mesa_select_tex_object(ctx, texUnit, target); 771} 772 773 774/** 775 * Get a texture image pointer from a texture object, given a texture 776 * target and mipmap level. The target and level parameters should 777 * have already been error-checked. 778 * 779 * \param ctx GL context. 780 * \param texObj texture unit. 781 * \param target texture target. 782 * \param level image level. 783 * 784 * \return pointer to the texture image structure, or NULL on failure. 785 */ 786struct gl_texture_image * 787_mesa_select_tex_image(struct gl_context *ctx, 788 const struct gl_texture_object *texObj, 789 GLenum target, GLint level) 790{ 791 const GLuint face = _mesa_tex_target_to_face(target); 792 793 ASSERT(texObj); 794 ASSERT(level >= 0); 795 ASSERT(level < MAX_TEXTURE_LEVELS); 796 797 return texObj->Image[face][level]; 798} 799 800 801/** 802 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate 803 * it and install it. Only return NULL if passed a bad parameter or run 804 * out of memory. 805 */ 806struct gl_texture_image * 807_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj, 808 GLenum target, GLint level) 809{ 810 struct gl_texture_image *texImage; 811 812 if (!texObj) 813 return NULL; 814 815 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 816 if (!texImage) { 817 texImage = ctx->Driver.NewTextureImage(ctx); 818 if (!texImage) { 819 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation"); 820 return NULL; 821 } 822 823 set_tex_image(texObj, target, level, texImage); 824 } 825 826 return texImage; 827} 828 829 830/** 831 * Return pointer to the specified proxy texture image. 832 * Note that proxy textures are per-context, not per-texture unit. 833 * \return pointer to texture image or NULL if invalid target, invalid 834 * level, or out of memory. 835 */ 836struct gl_texture_image * 837_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level) 838{ 839 struct gl_texture_image *texImage; 840 GLuint texIndex; 841 842 if (level < 0) 843 return NULL; 844 845 switch (target) { 846 case GL_PROXY_TEXTURE_1D: 847 if (level >= ctx->Const.MaxTextureLevels) 848 return NULL; 849 texIndex = TEXTURE_1D_INDEX; 850 break; 851 case GL_PROXY_TEXTURE_2D: 852 if (level >= ctx->Const.MaxTextureLevels) 853 return NULL; 854 texIndex = TEXTURE_2D_INDEX; 855 break; 856 case GL_PROXY_TEXTURE_3D: 857 if (level >= ctx->Const.Max3DTextureLevels) 858 return NULL; 859 texIndex = TEXTURE_3D_INDEX; 860 break; 861 case GL_PROXY_TEXTURE_CUBE_MAP: 862 if (level >= ctx->Const.MaxCubeTextureLevels) 863 return NULL; 864 texIndex = TEXTURE_CUBE_INDEX; 865 break; 866 case GL_PROXY_TEXTURE_RECTANGLE_NV: 867 if (level > 0) 868 return NULL; 869 texIndex = TEXTURE_RECT_INDEX; 870 break; 871 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 872 if (level >= ctx->Const.MaxTextureLevels) 873 return NULL; 874 texIndex = TEXTURE_1D_ARRAY_INDEX; 875 break; 876 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 877 if (level >= ctx->Const.MaxTextureLevels) 878 return NULL; 879 texIndex = TEXTURE_2D_ARRAY_INDEX; 880 break; 881 default: 882 return NULL; 883 } 884 885 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level]; 886 if (!texImage) { 887 texImage = ctx->Driver.NewTextureImage(ctx); 888 if (!texImage) { 889 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation"); 890 return NULL; 891 } 892 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage; 893 /* Set the 'back' pointer */ 894 texImage->TexObject = ctx->Texture.ProxyTex[texIndex]; 895 } 896 return texImage; 897} 898 899 900/** 901 * Get the maximum number of allowed mipmap levels. 902 * 903 * \param ctx GL context. 904 * \param target texture target. 905 * 906 * \return the maximum number of allowed mipmap levels for the given 907 * texture target, or zero if passed a bad target. 908 * 909 * \sa gl_constants. 910 */ 911GLint 912_mesa_max_texture_levels(struct gl_context *ctx, GLenum target) 913{ 914 switch (target) { 915 case GL_TEXTURE_1D: 916 case GL_PROXY_TEXTURE_1D: 917 case GL_TEXTURE_2D: 918 case GL_PROXY_TEXTURE_2D: 919 return ctx->Const.MaxTextureLevels; 920 case GL_TEXTURE_3D: 921 case GL_PROXY_TEXTURE_3D: 922 return ctx->Const.Max3DTextureLevels; 923 case GL_TEXTURE_CUBE_MAP: 924 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 925 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 926 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 927 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 928 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 929 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 930 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 931 return ctx->Extensions.ARB_texture_cube_map 932 ? ctx->Const.MaxCubeTextureLevels : 0; 933 case GL_TEXTURE_RECTANGLE_NV: 934 case GL_PROXY_TEXTURE_RECTANGLE_NV: 935 return ctx->Extensions.NV_texture_rectangle ? 1 : 0; 936 case GL_TEXTURE_1D_ARRAY_EXT: 937 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 938 case GL_TEXTURE_2D_ARRAY_EXT: 939 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 940 return (ctx->Extensions.MESA_texture_array || 941 ctx->Extensions.EXT_texture_array) 942 ? ctx->Const.MaxTextureLevels : 0; 943 case GL_TEXTURE_BUFFER: 944 return _mesa_is_desktop_gl(ctx) && 945 (ctx->Extensions.ARB_texture_buffer_object || 946 (ctx->Version >= 31)) ? 1 : 0; 947 case GL_TEXTURE_EXTERNAL_OES: 948 /* fall-through */ 949 default: 950 return 0; /* bad target */ 951 } 952} 953 954 955/** 956 * Return number of dimensions per mipmap level for the given texture target. 957 */ 958GLint 959_mesa_get_texture_dimensions(GLenum target) 960{ 961 switch (target) { 962 case GL_TEXTURE_1D: 963 case GL_PROXY_TEXTURE_1D: 964 return 1; 965 case GL_TEXTURE_2D: 966 case GL_TEXTURE_RECTANGLE: 967 case GL_TEXTURE_CUBE_MAP: 968 case GL_PROXY_TEXTURE_2D: 969 case GL_PROXY_TEXTURE_RECTANGLE: 970 case GL_PROXY_TEXTURE_CUBE_MAP: 971 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 972 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 973 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 974 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 975 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 976 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 977 case GL_TEXTURE_1D_ARRAY: 978 case GL_PROXY_TEXTURE_1D_ARRAY: 979 case GL_TEXTURE_EXTERNAL_OES: 980 return 2; 981 case GL_TEXTURE_3D: 982 case GL_PROXY_TEXTURE_3D: 983 case GL_TEXTURE_2D_ARRAY: 984 case GL_PROXY_TEXTURE_2D_ARRAY: 985 return 3; 986 case GL_TEXTURE_BUFFER: 987 /* fall-through */ 988 default: 989 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", 990 target); 991 return 2; 992 } 993} 994 995 996 997 998#if 000 /* not used anymore */ 999/* 1000 * glTexImage[123]D can accept a NULL image pointer. In this case we 1001 * create a texture image with unspecified image contents per the OpenGL 1002 * spec. 1003 */ 1004static GLubyte * 1005make_null_texture(GLint width, GLint height, GLint depth, GLenum format) 1006{ 1007 const GLint components = _mesa_components_in_format(format); 1008 const GLint numPixels = width * height * depth; 1009 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); 1010 1011#ifdef DEBUG 1012 /* 1013 * Let's see if anyone finds this. If glTexImage2D() is called with 1014 * a NULL image pointer then load the texture image with something 1015 * interesting instead of leaving it indeterminate. 1016 */ 1017 if (data) { 1018 static const char message[8][32] = { 1019 " X X XXXXX XXX X ", 1020 " XX XX X X X X X ", 1021 " X X X X X X X ", 1022 " X X XXXX XXX XXXXX ", 1023 " X X X X X X ", 1024 " X X X X X X X ", 1025 " X X XXXXX XXX X X ", 1026 " " 1027 }; 1028 1029 GLubyte *imgPtr = data; 1030 GLint h, i, j, k; 1031 for (h = 0; h < depth; h++) { 1032 for (i = 0; i < height; i++) { 1033 GLint srcRow = 7 - (i % 8); 1034 for (j = 0; j < width; j++) { 1035 GLint srcCol = j % 32; 1036 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 1037 for (k = 0; k < components; k++) { 1038 *imgPtr++ = texel; 1039 } 1040 } 1041 } 1042 } 1043 } 1044#endif 1045 1046 return data; 1047} 1048#endif 1049 1050 1051 1052/** 1053 * Set the size and format-related fields of a gl_texture_image struct 1054 * to zero. This is used when a proxy texture test fails. 1055 */ 1056static void 1057clear_teximage_fields(struct gl_texture_image *img) 1058{ 1059 ASSERT(img); 1060 img->_BaseFormat = 0; 1061 img->InternalFormat = 0; 1062 img->Border = 0; 1063 img->Width = 0; 1064 img->Height = 0; 1065 img->Depth = 0; 1066 img->Width2 = 0; 1067 img->Height2 = 0; 1068 img->Depth2 = 0; 1069 img->WidthLog2 = 0; 1070 img->HeightLog2 = 0; 1071 img->DepthLog2 = 0; 1072 img->TexFormat = MESA_FORMAT_NONE; 1073} 1074 1075 1076/** 1077 * Initialize basic fields of the gl_texture_image struct. 1078 * 1079 * \param ctx GL context. 1080 * \param img texture image structure to be initialized. 1081 * \param width image width. 1082 * \param height image height. 1083 * \param depth image depth. 1084 * \param border image border. 1085 * \param internalFormat internal format. 1086 * \param format the actual hardware format (one of MESA_FORMAT_*) 1087 * 1088 * Fills in the fields of \p img with the given information. 1089 * Note: width, height and depth include the border. 1090 */ 1091void 1092_mesa_init_teximage_fields(struct gl_context *ctx, 1093 struct gl_texture_image *img, 1094 GLsizei width, GLsizei height, GLsizei depth, 1095 GLint border, GLenum internalFormat, 1096 gl_format format) 1097{ 1098 GLenum target; 1099 ASSERT(img); 1100 ASSERT(width >= 0); 1101 ASSERT(height >= 0); 1102 ASSERT(depth >= 0); 1103 1104 target = img->TexObject->Target; 1105 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); 1106 ASSERT(img->_BaseFormat > 0); 1107 img->InternalFormat = internalFormat; 1108 img->Border = border; 1109 img->Width = width; 1110 img->Height = height; 1111 img->Depth = depth; 1112 1113 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ 1114 img->WidthLog2 = _mesa_logbase2(img->Width2); 1115 1116 switch(target) { 1117 case GL_TEXTURE_1D: 1118 case GL_TEXTURE_BUFFER: 1119 case GL_PROXY_TEXTURE_1D: 1120 if (height == 0) 1121 img->Height2 = 0; 1122 else 1123 img->Height2 = 1; 1124 img->HeightLog2 = 0; 1125 if (depth == 0) 1126 img->Depth2 = 0; 1127 else 1128 img->Depth2 = 1; 1129 img->DepthLog2 = 0; 1130 break; 1131 case GL_TEXTURE_1D_ARRAY: 1132 case GL_PROXY_TEXTURE_1D_ARRAY: 1133 img->Height2 = height; /* no border */ 1134 img->HeightLog2 = 0; /* not used */ 1135 if (depth == 0) 1136 img->Depth2 = 0; 1137 else 1138 img->Depth2 = 1; 1139 img->DepthLog2 = 0; 1140 break; 1141 case GL_TEXTURE_2D: 1142 case GL_TEXTURE_RECTANGLE: 1143 case GL_TEXTURE_CUBE_MAP: 1144 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1145 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1146 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1147 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1148 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1149 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1150 case GL_TEXTURE_EXTERNAL_OES: 1151 case GL_PROXY_TEXTURE_2D: 1152 case GL_PROXY_TEXTURE_RECTANGLE: 1153 case GL_PROXY_TEXTURE_CUBE_MAP: 1154 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1155 img->HeightLog2 = _mesa_logbase2(img->Height2); 1156 if (depth == 0) 1157 img->Depth2 = 0; 1158 else 1159 img->Depth2 = 1; 1160 img->DepthLog2 = 0; 1161 break; 1162 case GL_TEXTURE_2D_ARRAY: 1163 case GL_PROXY_TEXTURE_2D_ARRAY: 1164 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1165 img->HeightLog2 = _mesa_logbase2(img->Height2); 1166 img->Depth2 = depth; /* no border */ 1167 img->DepthLog2 = 0; /* not used */ 1168 break; 1169 case GL_TEXTURE_3D: 1170 case GL_PROXY_TEXTURE_3D: 1171 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1172 img->HeightLog2 = _mesa_logbase2(img->Height2); 1173 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ 1174 img->DepthLog2 = _mesa_logbase2(img->Depth2); 1175 break; 1176 default: 1177 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()", 1178 target); 1179 } 1180 1181 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 1182 img->TexFormat = format; 1183} 1184 1185 1186/** 1187 * Free and clear fields of the gl_texture_image struct. 1188 * 1189 * \param ctx GL context. 1190 * \param texImage texture image structure to be cleared. 1191 * 1192 * After the call, \p texImage will have no data associated with it. Its 1193 * fields are cleared so that its parent object will test incomplete. 1194 */ 1195void 1196_mesa_clear_texture_image(struct gl_context *ctx, 1197 struct gl_texture_image *texImage) 1198{ 1199 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 1200 clear_teximage_fields(texImage); 1201} 1202 1203 1204/** 1205 * This is the fallback for Driver.TestProxyTexImage(). Test the texture 1206 * level, width, height and depth against the ctx->Const limits for textures. 1207 * 1208 * A hardware driver might override this function if, for example, the 1209 * max 3D texture size is 512x512x64 (i.e. not a cube). 1210 * 1211 * Note that width, height, depth == 0 is not an error. However, a 1212 * texture with zero width/height/depth will be considered "incomplete" 1213 * and texturing will effectively be disabled. 1214 * 1215 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, 1216 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, 1217 * GL_PROXY_TEXTURE_CUBE_MAP_ARB. 1218 * \param level as passed to glTexImage 1219 * \param internalFormat as passed to glTexImage 1220 * \param format as passed to glTexImage 1221 * \param type as passed to glTexImage 1222 * \param width as passed to glTexImage 1223 * \param height as passed to glTexImage 1224 * \param depth as passed to glTexImage 1225 * \param border as passed to glTexImage 1226 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. 1227 */ 1228GLboolean 1229_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, 1230 GLint internalFormat, GLenum format, GLenum type, 1231 GLint width, GLint height, GLint depth, GLint border) 1232{ 1233 GLint maxSize; 1234 1235 (void) internalFormat; 1236 (void) format; 1237 (void) type; 1238 1239 switch (target) { 1240 case GL_PROXY_TEXTURE_1D: 1241 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1242 if (width < 2 * border || width > 2 * border + maxSize) 1243 return GL_FALSE; 1244 if (level >= ctx->Const.MaxTextureLevels) 1245 return GL_FALSE; 1246 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1247 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1248 return GL_FALSE; 1249 } 1250 return GL_TRUE; 1251 1252 case GL_PROXY_TEXTURE_2D: 1253 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1254 if (width < 2 * border || width > 2 * border + maxSize) 1255 return GL_FALSE; 1256 if (height < 2 * border || height > 2 * border + maxSize) 1257 return GL_FALSE; 1258 if (level >= ctx->Const.MaxTextureLevels) 1259 return GL_FALSE; 1260 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1261 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1262 return GL_FALSE; 1263 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1264 return GL_FALSE; 1265 } 1266 return GL_TRUE; 1267 1268 case GL_PROXY_TEXTURE_3D: 1269 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1270 if (width < 2 * border || width > 2 * border + maxSize) 1271 return GL_FALSE; 1272 if (height < 2 * border || height > 2 * border + maxSize) 1273 return GL_FALSE; 1274 if (depth < 2 * border || depth > 2 * border + maxSize) 1275 return GL_FALSE; 1276 if (level >= ctx->Const.Max3DTextureLevels) 1277 return GL_FALSE; 1278 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1279 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1280 return GL_FALSE; 1281 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1282 return GL_FALSE; 1283 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1284 return GL_FALSE; 1285 } 1286 return GL_TRUE; 1287 1288 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1289 maxSize = ctx->Const.MaxTextureRectSize; 1290 if (width < 0 || width > maxSize) 1291 return GL_FALSE; 1292 if (height < 0 || height > maxSize) 1293 return GL_FALSE; 1294 if (level != 0) 1295 return GL_FALSE; 1296 return GL_TRUE; 1297 1298 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1299 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1300 if (width < 2 * border || width > 2 * border + maxSize) 1301 return GL_FALSE; 1302 if (height < 2 * border || height > 2 * border + maxSize) 1303 return GL_FALSE; 1304 if (level >= ctx->Const.MaxCubeTextureLevels) 1305 return GL_FALSE; 1306 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1307 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1308 return GL_FALSE; 1309 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1310 return GL_FALSE; 1311 } 1312 return GL_TRUE; 1313 1314 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1315 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1316 if (width < 2 * border || width > 2 * border + maxSize) 1317 return GL_FALSE; 1318 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1319 return GL_FALSE; 1320 if (level >= ctx->Const.MaxTextureLevels) 1321 return GL_FALSE; 1322 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1323 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1324 return GL_FALSE; 1325 } 1326 return GL_TRUE; 1327 1328 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1329 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1330 if (width < 2 * border || width > 2 * border + maxSize) 1331 return GL_FALSE; 1332 if (height < 2 * border || height > 2 * border + maxSize) 1333 return GL_FALSE; 1334 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1335 return GL_FALSE; 1336 if (level >= ctx->Const.MaxTextureLevels) 1337 return GL_FALSE; 1338 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1339 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1340 return GL_FALSE; 1341 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1342 return GL_FALSE; 1343 } 1344 return GL_TRUE; 1345 1346 default: 1347 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1348 return GL_FALSE; 1349 } 1350} 1351 1352 1353/** 1354 * Check if the memory used by the texture would exceed the driver's limit. 1355 * This lets us support a max 3D texture size of 8K (for example) but 1356 * prevents allocating a full 8K x 8K x 8K texture. 1357 * XXX this could be rolled into the proxy texture size test (above) but 1358 * we don't have the actual texture internal format at that point. 1359 */ 1360static GLboolean 1361legal_texture_size(struct gl_context *ctx, gl_format format, 1362 GLint width, GLint height, GLint depth) 1363{ 1364 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1365 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1366 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1367} 1368 1369 1370/** 1371 * Return true if the format is only valid for glCompressedTexImage. 1372 */ 1373static GLboolean 1374compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1375{ 1376 switch (format) { 1377 case GL_ETC1_RGB8_OES: 1378 return GL_TRUE; 1379 default: 1380 return GL_FALSE; 1381 } 1382} 1383 1384 1385/** 1386 * Helper function to determine whether a target and specific compression 1387 * format are supported. 1388 */ 1389static GLboolean 1390target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1391 GLenum intFormat) 1392{ 1393 (void) intFormat; /* not used yet */ 1394 1395 switch (target) { 1396 case GL_TEXTURE_2D: 1397 case GL_PROXY_TEXTURE_2D: 1398 return GL_TRUE; /* true for any compressed format so far */ 1399 case GL_PROXY_TEXTURE_CUBE_MAP: 1400 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1401 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1402 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1403 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1404 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1405 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1406 return ctx->Extensions.ARB_texture_cube_map; 1407 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1408 case GL_TEXTURE_2D_ARRAY_EXT: 1409 return (ctx->Extensions.MESA_texture_array || 1410 ctx->Extensions.EXT_texture_array); 1411 default: 1412 return GL_FALSE; 1413 } 1414} 1415 1416 1417/** 1418 * Check if the given texture target value is legal for a 1419 * glTexImage1/2/3D call. 1420 */ 1421static GLboolean 1422legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1423{ 1424 switch (dims) { 1425 case 1: 1426 switch (target) { 1427 case GL_TEXTURE_1D: 1428 case GL_PROXY_TEXTURE_1D: 1429 return _mesa_is_desktop_gl(ctx); 1430 default: 1431 return GL_FALSE; 1432 } 1433 case 2: 1434 switch (target) { 1435 case GL_TEXTURE_2D: 1436 return GL_TRUE; 1437 case GL_PROXY_TEXTURE_2D: 1438 return _mesa_is_desktop_gl(ctx); 1439 case GL_PROXY_TEXTURE_CUBE_MAP: 1440 return _mesa_is_desktop_gl(ctx) 1441 && ctx->Extensions.ARB_texture_cube_map; 1442 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1443 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1444 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1445 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1446 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1447 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1448 return ctx->Extensions.ARB_texture_cube_map; 1449 case GL_TEXTURE_RECTANGLE_NV: 1450 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1451 return _mesa_is_desktop_gl(ctx) 1452 && ctx->Extensions.NV_texture_rectangle; 1453 case GL_TEXTURE_1D_ARRAY_EXT: 1454 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1455 return _mesa_is_desktop_gl(ctx) 1456 && (ctx->Extensions.MESA_texture_array || 1457 ctx->Extensions.EXT_texture_array); 1458 default: 1459 return GL_FALSE; 1460 } 1461 case 3: 1462 switch (target) { 1463 case GL_TEXTURE_3D: 1464 return GL_TRUE; 1465 case GL_PROXY_TEXTURE_3D: 1466 return _mesa_is_desktop_gl(ctx); 1467 case GL_TEXTURE_2D_ARRAY_EXT: 1468 return (_mesa_is_desktop_gl(ctx) 1469 && (ctx->Extensions.MESA_texture_array || 1470 ctx->Extensions.EXT_texture_array)) 1471 || _mesa_is_gles3(ctx); 1472 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1473 return _mesa_is_desktop_gl(ctx) 1474 && (ctx->Extensions.MESA_texture_array || 1475 ctx->Extensions.EXT_texture_array); 1476 default: 1477 return GL_FALSE; 1478 } 1479 default: 1480 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1481 return GL_FALSE; 1482 } 1483} 1484 1485 1486/** 1487 * Check if the given texture target value is legal for a 1488 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1489 * The difference compared to legal_teximage_target() above is that 1490 * proxy targets are not supported. 1491 */ 1492static GLboolean 1493legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1494{ 1495 switch (dims) { 1496 case 1: 1497 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D; 1498 case 2: 1499 switch (target) { 1500 case GL_TEXTURE_2D: 1501 return GL_TRUE; 1502 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1503 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1504 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1505 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1506 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1507 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1508 return ctx->Extensions.ARB_texture_cube_map; 1509 case GL_TEXTURE_RECTANGLE_NV: 1510 return _mesa_is_desktop_gl(ctx) 1511 && ctx->Extensions.NV_texture_rectangle; 1512 case GL_TEXTURE_1D_ARRAY_EXT: 1513 return _mesa_is_desktop_gl(ctx) 1514 && (ctx->Extensions.MESA_texture_array || 1515 ctx->Extensions.EXT_texture_array); 1516 default: 1517 return GL_FALSE; 1518 } 1519 case 3: 1520 switch (target) { 1521 case GL_TEXTURE_3D: 1522 return GL_TRUE; 1523 case GL_TEXTURE_2D_ARRAY_EXT: 1524 return (_mesa_is_desktop_gl(ctx) 1525 && (ctx->Extensions.MESA_texture_array || 1526 ctx->Extensions.EXT_texture_array)) 1527 || _mesa_is_gles3(ctx); 1528 default: 1529 return GL_FALSE; 1530 } 1531 default: 1532 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1533 dims); 1534 return GL_FALSE; 1535 } 1536} 1537 1538 1539/** 1540 * Helper function to determine if a texture object is mutable (in terms 1541 * of GL_ARB_texture_storage). 1542 */ 1543static GLboolean 1544mutable_tex_object(struct gl_context *ctx, GLenum target) 1545{ 1546 if (ctx->Extensions.ARB_texture_storage) { 1547 struct gl_texture_object *texObj = 1548 _mesa_get_current_tex_object(ctx, target); 1549 return !texObj->Immutable; 1550 } 1551 return GL_TRUE; 1552} 1553 1554 1555 1556/** 1557 * Test the glTexImage[123]D() parameters for errors. 1558 * 1559 * \param ctx GL context. 1560 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1561 * \param target texture target given by the user. 1562 * \param level image level given by the user. 1563 * \param internalFormat internal format given by the user. 1564 * \param format pixel data format given by the user. 1565 * \param type pixel data type given by the user. 1566 * \param width image width given by the user. 1567 * \param height image height given by the user. 1568 * \param depth image depth given by the user. 1569 * \param border image border given by the user. 1570 * 1571 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1572 * 1573 * Verifies each of the parameters against the constants specified in 1574 * __struct gl_contextRec::Const and the supported extensions, and according 1575 * to the OpenGL specification. 1576 */ 1577static GLboolean 1578texture_error_check( struct gl_context *ctx, 1579 GLuint dimensions, GLenum target, 1580 GLint level, GLint internalFormat, 1581 GLenum format, GLenum type, 1582 GLint width, GLint height, 1583 GLint depth, GLint border ) 1584{ 1585 const GLenum proxyTarget = get_proxy_target(target); 1586 const GLboolean isProxy = target == proxyTarget; 1587 GLboolean sizeOK = GL_TRUE; 1588 GLboolean colorFormat; 1589 GLenum err; 1590 1591 /* Even though there are no color-index textures, we still have to support 1592 * uploading color-index data and remapping it to RGB via the 1593 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1594 */ 1595 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1596 1597 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1598 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1599 if (!isProxy) { 1600 _mesa_error(ctx, GL_INVALID_VALUE, 1601 "glTexImage%dD(level=%d)", dimensions, level); 1602 } 1603 return GL_TRUE; 1604 } 1605 1606 /* Check border */ 1607 if (border < 0 || border > 1 || 1608 ((ctx->API != API_OPENGL || 1609 target == GL_TEXTURE_RECTANGLE_NV || 1610 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1611 if (!isProxy) { 1612 _mesa_error(ctx, GL_INVALID_VALUE, 1613 "glTexImage%dD(border=%d)", dimensions, border); 1614 } 1615 return GL_TRUE; 1616 } 1617 1618 if (width < 0 || height < 0 || depth < 0) { 1619 if (!isProxy) { 1620 _mesa_error(ctx, GL_INVALID_VALUE, 1621 "glTexImage%dD(width, height or depth < 0)", dimensions); 1622 } 1623 return GL_TRUE; 1624 } 1625 1626 /* Do this simple check before calling the TestProxyTexImage() function */ 1627 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1628 sizeOK = (width == height); 1629 } 1630 1631 /* 1632 * Use the proxy texture driver hook to see if the size/level/etc are 1633 * legal. 1634 */ 1635 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1636 internalFormat, format, 1637 type, width, height, 1638 depth, border); 1639 if (!sizeOK) { 1640 if (!isProxy) { 1641 _mesa_error(ctx, GL_INVALID_VALUE, 1642 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1643 dimensions, level, width, height, depth); 1644 } 1645 return GL_TRUE; 1646 } 1647 1648 /* Check internalFormat */ 1649 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1650 if (!isProxy) { 1651 _mesa_error(ctx, GL_INVALID_VALUE, 1652 "glTexImage%dD(internalFormat=%s)", 1653 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1654 } 1655 return GL_TRUE; 1656 } 1657 1658 /* Check incoming image format and type */ 1659 err = _mesa_error_check_format_and_type(ctx, format, type); 1660 if (err != GL_NO_ERROR) { 1661 if (!isProxy) { 1662 _mesa_error(ctx, err, 1663 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1664 dimensions, format, type); 1665 } 1666 return GL_TRUE; 1667 } 1668 1669 /* make sure internal format and format basically agree */ 1670 colorFormat = _mesa_is_color_format(format); 1671 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1672 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1673 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1674 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1675 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1676 if (!isProxy) 1677 _mesa_error(ctx, GL_INVALID_OPERATION, 1678 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1679 dimensions, internalFormat, format); 1680 return GL_TRUE; 1681 } 1682 1683 /* additional checks for ycbcr textures */ 1684 if (internalFormat == GL_YCBCR_MESA) { 1685 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1686 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1687 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1688 char message[100]; 1689 _mesa_snprintf(message, sizeof(message), 1690 "glTexImage%dD(format/type YCBCR mismatch", dimensions); 1691 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1692 return GL_TRUE; /* error */ 1693 } 1694 if (target != GL_TEXTURE_2D && 1695 target != GL_PROXY_TEXTURE_2D && 1696 target != GL_TEXTURE_RECTANGLE_NV && 1697 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1698 if (!isProxy) 1699 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)"); 1700 return GL_TRUE; 1701 } 1702 if (border != 0) { 1703 if (!isProxy) { 1704 char message[100]; 1705 _mesa_snprintf(message, sizeof(message), 1706 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1707 dimensions, border); 1708 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1709 } 1710 return GL_TRUE; 1711 } 1712 } 1713 1714 /* additional checks for depth textures */ 1715 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1716 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1717 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1718 if (target != GL_TEXTURE_1D && 1719 target != GL_PROXY_TEXTURE_1D && 1720 target != GL_TEXTURE_2D && 1721 target != GL_PROXY_TEXTURE_2D && 1722 target != GL_TEXTURE_1D_ARRAY && 1723 target != GL_PROXY_TEXTURE_1D_ARRAY && 1724 target != GL_TEXTURE_2D_ARRAY && 1725 target != GL_PROXY_TEXTURE_2D_ARRAY && 1726 target != GL_TEXTURE_RECTANGLE_ARB && 1727 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1728 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1729 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1730 if (!isProxy) 1731 _mesa_error(ctx, GL_INVALID_ENUM, 1732 "glTexImage(target/internalFormat)"); 1733 return GL_TRUE; 1734 } 1735 } 1736 1737 /* additional checks for compressed textures */ 1738 if (_mesa_is_compressed_format(ctx, internalFormat)) { 1739 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1740 if (!isProxy) 1741 _mesa_error(ctx, GL_INVALID_ENUM, 1742 "glTexImage%dD(target)", dimensions); 1743 return GL_TRUE; 1744 } 1745 if (compressedteximage_only_format(ctx, internalFormat)) { 1746 _mesa_error(ctx, GL_INVALID_OPERATION, 1747 "glTexImage%dD(no compression for format)", dimensions); 1748 return GL_TRUE; 1749 } 1750 if (border != 0) { 1751 if (!isProxy) { 1752 _mesa_error(ctx, GL_INVALID_OPERATION, 1753 "glTexImage%dD(border!=0)", dimensions); 1754 } 1755 return GL_TRUE; 1756 } 1757 } 1758 1759 /* additional checks for integer textures */ 1760 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1761 (_mesa_is_enum_format_integer(format) != 1762 _mesa_is_enum_format_integer(internalFormat))) { 1763 if (!isProxy) { 1764 _mesa_error(ctx, GL_INVALID_OPERATION, 1765 "glTexImage%dD(integer/non-integer format mismatch)", 1766 dimensions); 1767 } 1768 return GL_TRUE; 1769 } 1770 1771 if (!mutable_tex_object(ctx, target)) { 1772 _mesa_error(ctx, GL_INVALID_OPERATION, 1773 "glTexImage%dD(immutable texture)", dimensions); 1774 return GL_TRUE; 1775 } 1776 1777 /* if we get here, the parameters are OK */ 1778 return GL_FALSE; 1779} 1780 1781 1782/** 1783 * Test glTexSubImage[123]D() parameters for errors. 1784 * 1785 * \param ctx GL context. 1786 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1787 * \param target texture target given by the user. 1788 * \param level image level given by the user. 1789 * \param xoffset sub-image x offset given by the user. 1790 * \param yoffset sub-image y offset given by the user. 1791 * \param zoffset sub-image z offset given by the user. 1792 * \param format pixel data format given by the user. 1793 * \param type pixel data type given by the user. 1794 * \param width image width given by the user. 1795 * \param height image height given by the user. 1796 * \param depth image depth given by the user. 1797 * 1798 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1799 * 1800 * Verifies each of the parameters against the constants specified in 1801 * __struct gl_contextRec::Const and the supported extensions, and according 1802 * to the OpenGL specification. 1803 */ 1804static GLboolean 1805subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 1806 GLenum target, GLint level, 1807 GLint xoffset, GLint yoffset, GLint zoffset, 1808 GLint width, GLint height, GLint depth, 1809 GLenum format, GLenum type ) 1810{ 1811 GLenum err; 1812 1813 /* Basic level check */ 1814 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1815 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 1816 return GL_TRUE; 1817 } 1818 1819 /* Check for negative sizes */ 1820 if (width < 0) { 1821 _mesa_error(ctx, GL_INVALID_VALUE, 1822 "glTexSubImage%dD(width=%d)", dimensions, width); 1823 return GL_TRUE; 1824 } 1825 if (height < 0 && dimensions > 1) { 1826 _mesa_error(ctx, GL_INVALID_VALUE, 1827 "glTexSubImage%dD(height=%d)", dimensions, height); 1828 return GL_TRUE; 1829 } 1830 if (depth < 0 && dimensions > 2) { 1831 _mesa_error(ctx, GL_INVALID_VALUE, 1832 "glTexSubImage%dD(depth=%d)", dimensions, depth); 1833 return GL_TRUE; 1834 } 1835 1836 err = _mesa_error_check_format_and_type(ctx, format, type); 1837 if (err != GL_NO_ERROR) { 1838 _mesa_error(ctx, err, 1839 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 1840 dimensions, format, type); 1841 return GL_TRUE; 1842 } 1843 1844 return GL_FALSE; 1845} 1846 1847 1848/** 1849 * Do second part of glTexSubImage which depends on the destination texture. 1850 * \return GL_TRUE if error recorded, GL_FALSE otherwise 1851 */ 1852static GLboolean 1853subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 1854 GLenum target, GLint level, 1855 GLint xoffset, GLint yoffset, GLint zoffset, 1856 GLint width, GLint height, GLint depth, 1857 GLenum format, GLenum type, 1858 const struct gl_texture_image *destTex ) 1859{ 1860 if (!destTex) { 1861 /* undefined image level */ 1862 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 1863 return GL_TRUE; 1864 } 1865 1866 if (xoffset < -((GLint)destTex->Border)) { 1867 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 1868 dimensions); 1869 return GL_TRUE; 1870 } 1871 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 1872 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 1873 dimensions); 1874 return GL_TRUE; 1875 } 1876 if (dimensions > 1) { 1877 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 1878 if (yoffset < -yBorder) { 1879 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 1880 dimensions); 1881 return GL_TRUE; 1882 } 1883 if (yoffset + height > (GLint) destTex->Height + yBorder) { 1884 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 1885 dimensions); 1886 return GL_TRUE; 1887 } 1888 } 1889 if (dimensions > 2) { 1890 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 1891 if (zoffset < -zBorder) { 1892 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 1893 return GL_TRUE; 1894 } 1895 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 1896 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 1897 return GL_TRUE; 1898 } 1899 } 1900 1901 if (_mesa_is_format_compressed(destTex->TexFormat)) { 1902 GLuint bw, bh; 1903 1904 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 1905 _mesa_error(ctx, GL_INVALID_OPERATION, 1906 "glTexSubImage%dD(no compression for format)", dimensions); 1907 return GL_TRUE; 1908 } 1909 1910 /* do tests which depend on compression block size */ 1911 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 1912 1913 /* offset must be multiple of block size */ 1914 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 1915 _mesa_error(ctx, GL_INVALID_OPERATION, 1916 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 1917 dimensions, xoffset, yoffset); 1918 return GL_TRUE; 1919 } 1920 /* size must be multiple of bw by bh or equal to whole texture size */ 1921 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 1922 _mesa_error(ctx, GL_INVALID_OPERATION, 1923 "glTexSubImage%dD(width = %d)", dimensions, width); 1924 return GL_TRUE; 1925 } 1926 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 1927 _mesa_error(ctx, GL_INVALID_OPERATION, 1928 "glTexSubImage%dD(height = %d)", dimensions, height); 1929 return GL_TRUE; 1930 } 1931 } 1932 1933 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 1934 /* both source and dest must be integer-valued, or neither */ 1935 if (_mesa_is_format_integer_color(destTex->TexFormat) != 1936 _mesa_is_enum_format_integer(format)) { 1937 _mesa_error(ctx, GL_INVALID_OPERATION, 1938 "glTexSubImage%dD(integer/non-integer format mismatch)", 1939 dimensions); 1940 return GL_TRUE; 1941 } 1942 } 1943 1944 return GL_FALSE; 1945} 1946 1947 1948/** 1949 * Test glCopyTexImage[12]D() parameters for errors. 1950 * 1951 * \param ctx GL context. 1952 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1953 * \param target texture target given by the user. 1954 * \param level image level given by the user. 1955 * \param internalFormat internal format given by the user. 1956 * \param width image width given by the user. 1957 * \param height image height given by the user. 1958 * \param border texture border. 1959 * 1960 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1961 * 1962 * Verifies each of the parameters against the constants specified in 1963 * __struct gl_contextRec::Const and the supported extensions, and according 1964 * to the OpenGL specification. 1965 */ 1966static GLboolean 1967copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 1968 GLenum target, GLint level, GLint internalFormat, 1969 GLint width, GLint height, GLint border ) 1970{ 1971 const GLenum proxyTarget = get_proxy_target(target); 1972 const GLenum type = GL_FLOAT; 1973 GLboolean sizeOK; 1974 GLint baseFormat; 1975 1976 /* check target */ 1977 if (!legal_texsubimage_target(ctx, dimensions, target)) { 1978 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 1979 dimensions, _mesa_lookup_enum_by_nr(target)); 1980 return GL_TRUE; 1981 } 1982 1983 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1984 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1985 _mesa_error(ctx, GL_INVALID_VALUE, 1986 "glCopyTexImage%dD(level=%d)", dimensions, level); 1987 return GL_TRUE; 1988 } 1989 1990 /* Check that the source buffer is complete */ 1991 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 1992 if (ctx->ReadBuffer->_Status == 0) { 1993 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 1994 } 1995 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 1996 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 1997 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 1998 return GL_TRUE; 1999 } 2000 2001 if (ctx->ReadBuffer->Visual.samples > 0) { 2002 _mesa_error(ctx, GL_INVALID_OPERATION, 2003 "glCopyTexImage%dD(multisample FBO)", 2004 dimensions); 2005 return GL_TRUE; 2006 } 2007 } 2008 2009 /* Check border */ 2010 if (border < 0 || border > 1 || 2011 ((ctx->API != API_OPENGL || 2012 target == GL_TEXTURE_RECTANGLE_NV || 2013 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2014 _mesa_error(ctx, GL_INVALID_VALUE, 2015 "glCopyTexImage%dD(border=%d)", dimensions, border); 2016 return GL_TRUE; 2017 } 2018 2019 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2020 if (baseFormat < 0) { 2021 _mesa_error(ctx, GL_INVALID_VALUE, 2022 "glCopyTexImage%dD(internalFormat)", dimensions); 2023 return GL_TRUE; 2024 } 2025 2026 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2027 _mesa_error(ctx, GL_INVALID_OPERATION, 2028 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2029 return GL_TRUE; 2030 } 2031 2032 /* From the EXT_texture_integer spec: 2033 * 2034 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2035 * if the texture internalformat is an integer format and the read color 2036 * buffer is not an integer format, or if the internalformat is not an 2037 * integer format and the read color buffer is an integer format." 2038 */ 2039 if (_mesa_is_color_format(internalFormat)) { 2040 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2041 2042 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2043 _mesa_is_enum_format_integer(internalFormat)) { 2044 _mesa_error(ctx, GL_INVALID_OPERATION, 2045 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2046 return GL_TRUE; 2047 } 2048 } 2049 2050 /* Do size, level checking */ 2051 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2052 ? (width == height) : 1; 2053 2054 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2055 internalFormat, baseFormat, 2056 type, width, height, 2057 1, border); 2058 2059 if (!sizeOK) { 2060 if (dimensions == 1) { 2061 _mesa_error(ctx, GL_INVALID_VALUE, 2062 "glCopyTexImage1D(width=%d)", width); 2063 } 2064 else { 2065 ASSERT(dimensions == 2); 2066 _mesa_error(ctx, GL_INVALID_VALUE, 2067 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2068 } 2069 return GL_TRUE; 2070 } 2071 2072 if (_mesa_is_compressed_format(ctx, internalFormat)) { 2073 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2074 _mesa_error(ctx, GL_INVALID_ENUM, 2075 "glCopyTexImage%dD(target)", dimensions); 2076 return GL_TRUE; 2077 } 2078 if (compressedteximage_only_format(ctx, internalFormat)) { 2079 _mesa_error(ctx, GL_INVALID_OPERATION, 2080 "glCopyTexImage%dD(no compression for format)", dimensions); 2081 return GL_TRUE; 2082 } 2083 if (border != 0) { 2084 _mesa_error(ctx, GL_INVALID_OPERATION, 2085 "glCopyTexImage%dD(border!=0)", dimensions); 2086 return GL_TRUE; 2087 } 2088 } 2089 2090 if (!mutable_tex_object(ctx, target)) { 2091 _mesa_error(ctx, GL_INVALID_OPERATION, 2092 "glCopyTexImage%dD(immutable texture)", dimensions); 2093 return GL_TRUE; 2094 } 2095 2096 /* if we get here, the parameters are OK */ 2097 return GL_FALSE; 2098} 2099 2100 2101/** 2102 * Test glCopyTexSubImage[12]D() parameters for errors. 2103 * Note that this is the first part of error checking. 2104 * See also copytexsubimage_error_check2() below for the second part. 2105 * 2106 * \param ctx GL context. 2107 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2108 * \param target texture target given by the user. 2109 * \param level image level given by the user. 2110 * 2111 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2112 */ 2113static GLboolean 2114copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2115 GLenum target, GLint level) 2116{ 2117 /* Check that the source buffer is complete */ 2118 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2119 if (ctx->ReadBuffer->_Status == 0) { 2120 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2121 } 2122 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2123 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2124 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2125 return GL_TRUE; 2126 } 2127 2128 if (ctx->ReadBuffer->Visual.samples > 0) { 2129 _mesa_error(ctx, GL_INVALID_OPERATION, 2130 "glCopyTexSubImage%dD(multisample FBO)", 2131 dimensions); 2132 return GL_TRUE; 2133 } 2134 } 2135 2136 /* check target (proxies not allowed) */ 2137 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2138 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2139 dimensions, _mesa_lookup_enum_by_nr(target)); 2140 return GL_TRUE; 2141 } 2142 2143 /* Check level */ 2144 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2145 _mesa_error(ctx, GL_INVALID_VALUE, 2146 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2147 return GL_TRUE; 2148 } 2149 2150 return GL_FALSE; 2151} 2152 2153 2154/** 2155 * Second part of error checking for glCopyTexSubImage[12]D(). 2156 * \param xoffset sub-image x offset given by the user. 2157 * \param yoffset sub-image y offset given by the user. 2158 * \param zoffset sub-image z offset given by the user. 2159 * \param width image width given by the user. 2160 * \param height image height given by the user. 2161 */ 2162static GLboolean 2163copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2164 GLenum target, GLint level, 2165 GLint xoffset, GLint yoffset, GLint zoffset, 2166 GLsizei width, GLsizei height, 2167 const struct gl_texture_image *teximage ) 2168{ 2169 /* check that dest tex image exists */ 2170 if (!teximage) { 2171 _mesa_error(ctx, GL_INVALID_OPERATION, 2172 "glCopyTexSubImage%dD(undefined texture level: %d)", 2173 dimensions, level); 2174 return GL_TRUE; 2175 } 2176 2177 /* Check size */ 2178 if (width < 0) { 2179 _mesa_error(ctx, GL_INVALID_VALUE, 2180 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2181 return GL_TRUE; 2182 } 2183 if (dimensions > 1 && height < 0) { 2184 _mesa_error(ctx, GL_INVALID_VALUE, 2185 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2186 return GL_TRUE; 2187 } 2188 2189 /* check x/y offsets */ 2190 if (xoffset < -((GLint)teximage->Border)) { 2191 _mesa_error(ctx, GL_INVALID_VALUE, 2192 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2193 return GL_TRUE; 2194 } 2195 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2196 _mesa_error(ctx, GL_INVALID_VALUE, 2197 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2198 return GL_TRUE; 2199 } 2200 if (dimensions > 1) { 2201 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2202 if (yoffset < -yBorder) { 2203 _mesa_error(ctx, GL_INVALID_VALUE, 2204 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2205 return GL_TRUE; 2206 } 2207 /* NOTE: we're adding the border here, not subtracting! */ 2208 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2209 _mesa_error(ctx, GL_INVALID_VALUE, 2210 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2211 return GL_TRUE; 2212 } 2213 } 2214 2215 /* check z offset */ 2216 if (dimensions > 2) { 2217 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2218 if (zoffset < -zBorder) { 2219 _mesa_error(ctx, GL_INVALID_VALUE, 2220 "glCopyTexSubImage%dD(zoffset)", dimensions); 2221 return GL_TRUE; 2222 } 2223 if (zoffset > (GLint) teximage->Depth + zBorder) { 2224 _mesa_error(ctx, GL_INVALID_VALUE, 2225 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2226 return GL_TRUE; 2227 } 2228 } 2229 2230 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2231 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2232 _mesa_error(ctx, GL_INVALID_OPERATION, 2233 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2234 return GL_TRUE; 2235 } 2236 /* offset must be multiple of 4 */ 2237 if ((xoffset & 3) || (yoffset & 3)) { 2238 _mesa_error(ctx, GL_INVALID_VALUE, 2239 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2240 return GL_TRUE; 2241 } 2242 /* size must be multiple of 4 */ 2243 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2244 _mesa_error(ctx, GL_INVALID_VALUE, 2245 "glCopyTexSubImage%dD(width)", dimensions); 2246 return GL_TRUE; 2247 } 2248 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2249 _mesa_error(ctx, GL_INVALID_VALUE, 2250 "glCopyTexSubImage%dD(height)", dimensions); 2251 return GL_TRUE; 2252 } 2253 } 2254 2255 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2256 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2257 return GL_TRUE; 2258 } 2259 2260 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2261 _mesa_error(ctx, GL_INVALID_OPERATION, 2262 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2263 dimensions, teximage->_BaseFormat); 2264 return GL_TRUE; 2265 } 2266 2267 /* From the EXT_texture_integer spec: 2268 * 2269 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2270 * if the texture internalformat is an integer format and the read color 2271 * buffer is not an integer format, or if the internalformat is not an 2272 * integer format and the read color buffer is an integer format." 2273 */ 2274 if (_mesa_is_color_format(teximage->InternalFormat)) { 2275 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2276 2277 if (_mesa_is_format_integer_color(rb->Format) != 2278 _mesa_is_format_integer_color(teximage->TexFormat)) { 2279 _mesa_error(ctx, GL_INVALID_OPERATION, 2280 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2281 return GL_TRUE; 2282 } 2283 } 2284 2285 /* if we get here, the parameters are OK */ 2286 return GL_FALSE; 2287} 2288 2289 2290/** Callback info for walking over FBO hash table */ 2291struct cb_info 2292{ 2293 struct gl_context *ctx; 2294 struct gl_texture_object *texObj; 2295 GLuint level, face; 2296}; 2297 2298 2299/** 2300 * Check render to texture callback. Called from _mesa_HashWalk(). 2301 */ 2302static void 2303check_rtt_cb(GLuint key, void *data, void *userData) 2304{ 2305 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2306 const struct cb_info *info = (struct cb_info *) userData; 2307 struct gl_context *ctx = info->ctx; 2308 const struct gl_texture_object *texObj = info->texObj; 2309 const GLuint level = info->level, face = info->face; 2310 2311 /* If this is a user-created FBO */ 2312 if (_mesa_is_user_fbo(fb)) { 2313 GLuint i; 2314 /* check if any of the FBO's attachments point to 'texObj' */ 2315 for (i = 0; i < BUFFER_COUNT; i++) { 2316 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2317 if (att->Type == GL_TEXTURE && 2318 att->Texture == texObj && 2319 att->TextureLevel == level && 2320 att->CubeMapFace == face) { 2321 ASSERT(_mesa_get_attachment_teximage(att)); 2322 /* Tell driver about the new renderbuffer texture */ 2323 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2324 /* Mark fb status as indeterminate to force re-validation */ 2325 fb->_Status = 0; 2326 } 2327 } 2328 } 2329} 2330 2331 2332/** 2333 * When a texture image is specified we have to check if it's bound to 2334 * any framebuffer objects (render to texture) in order to detect changes 2335 * in size or format since that effects FBO completeness. 2336 * Any FBOs rendering into the texture must be re-validated. 2337 */ 2338void 2339_mesa_update_fbo_texture(struct gl_context *ctx, 2340 struct gl_texture_object *texObj, 2341 GLuint face, GLuint level) 2342{ 2343 /* Only check this texture if it's been marked as RenderToTexture */ 2344 if (texObj->_RenderToTexture) { 2345 struct cb_info info; 2346 info.ctx = ctx; 2347 info.texObj = texObj; 2348 info.level = level; 2349 info.face = face; 2350 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2351 } 2352} 2353 2354 2355/** 2356 * If the texture object's GenerateMipmap flag is set and we've 2357 * changed the texture base level image, regenerate the rest of the 2358 * mipmap levels now. 2359 */ 2360static inline void 2361check_gen_mipmap(struct gl_context *ctx, GLenum target, 2362 struct gl_texture_object *texObj, GLint level) 2363{ 2364 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2365 if (texObj->GenerateMipmap && 2366 level == texObj->BaseLevel && 2367 level < texObj->MaxLevel) { 2368 ASSERT(ctx->Driver.GenerateMipmap); 2369 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2370 } 2371} 2372 2373 2374/** Debug helper: override the user-requested internal format */ 2375static GLenum 2376override_internal_format(GLenum internalFormat, GLint width, GLint height) 2377{ 2378#if 0 2379 if (internalFormat == GL_RGBA16F_ARB || 2380 internalFormat == GL_RGBA32F_ARB) { 2381 printf("Convert rgba float tex to int %d x %d\n", width, height); 2382 return GL_RGBA; 2383 } 2384 else if (internalFormat == GL_RGB16F_ARB || 2385 internalFormat == GL_RGB32F_ARB) { 2386 printf("Convert rgb float tex to int %d x %d\n", width, height); 2387 return GL_RGB; 2388 } 2389 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2390 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2391 printf("Convert luminance float tex to int %d x %d\n", width, height); 2392 return GL_LUMINANCE_ALPHA; 2393 } 2394 else if (internalFormat == GL_LUMINANCE16F_ARB || 2395 internalFormat == GL_LUMINANCE32F_ARB) { 2396 printf("Convert luminance float tex to int %d x %d\n", width, height); 2397 return GL_LUMINANCE; 2398 } 2399 else if (internalFormat == GL_ALPHA16F_ARB || 2400 internalFormat == GL_ALPHA32F_ARB) { 2401 printf("Convert luminance float tex to int %d x %d\n", width, height); 2402 return GL_ALPHA; 2403 } 2404 /* 2405 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2406 internalFormat = GL_RGBA; 2407 } 2408 */ 2409 else { 2410 return internalFormat; 2411 } 2412#else 2413 return internalFormat; 2414#endif 2415} 2416 2417 2418/** 2419 * Choose the actual hardware format for a texture image. 2420 * Try to use the same format as the previous image level when possible. 2421 * Otherwise, ask the driver for the best format. 2422 * It's important to try to choose a consistant format for all levels 2423 * for efficient texture memory layout/allocation. In particular, this 2424 * comes up during automatic mipmap generation. 2425 */ 2426gl_format 2427_mesa_choose_texture_format(struct gl_context *ctx, 2428 struct gl_texture_object *texObj, 2429 GLenum target, GLint level, 2430 GLenum internalFormat, GLenum format, GLenum type) 2431{ 2432 gl_format f; 2433 2434 /* see if we've already chosen a format for the previous level */ 2435 if (level > 0) { 2436 struct gl_texture_image *prevImage = 2437 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2438 /* See if the prev level is defined and has an internal format which 2439 * matches the new internal format. 2440 */ 2441 if (prevImage && 2442 prevImage->Width > 0 && 2443 prevImage->InternalFormat == internalFormat) { 2444 /* use the same format */ 2445 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2446 return prevImage->TexFormat; 2447 } 2448 } 2449 2450 /* choose format from scratch */ 2451 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type); 2452 ASSERT(f != MESA_FORMAT_NONE); 2453 return f; 2454} 2455 2456/** 2457 * Adjust pixel unpack params and image dimensions to strip off the 2458 * one-pixel texture border. 2459 * 2460 * Gallium and intel don't support texture borders. They've seldem been used 2461 * and seldom been implemented correctly anyway. 2462 * 2463 * \param unpackNew returns the new pixel unpack parameters 2464 */ 2465static void 2466strip_texture_border(GLenum target, 2467 GLint *width, GLint *height, GLint *depth, 2468 const struct gl_pixelstore_attrib *unpack, 2469 struct gl_pixelstore_attrib *unpackNew) 2470{ 2471 assert(width); 2472 assert(height); 2473 assert(depth); 2474 2475 *unpackNew = *unpack; 2476 2477 if (unpackNew->RowLength == 0) 2478 unpackNew->RowLength = *width; 2479 2480 if (unpackNew->ImageHeight == 0) 2481 unpackNew->ImageHeight = *height; 2482 2483 assert(*width >= 3); 2484 unpackNew->SkipPixels++; /* skip the border */ 2485 *width = *width - 2; /* reduce the width by two border pixels */ 2486 2487 /* The min height of a texture with a border is 3 */ 2488 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2489 unpackNew->SkipRows++; /* skip the border */ 2490 *height = *height - 2; /* reduce the height by two border pixels */ 2491 } 2492 2493 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2494 unpackNew->SkipImages++; /* skip the border */ 2495 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2496 } 2497} 2498 2499/** 2500 * Common code to implement all the glTexImage1D/2D/3D functions. 2501 */ 2502static void 2503teximage(struct gl_context *ctx, GLuint dims, 2504 GLenum target, GLint level, GLint internalFormat, 2505 GLsizei width, GLsizei height, GLsizei depth, 2506 GLint border, GLenum format, GLenum type, 2507 const GLvoid *pixels) 2508{ 2509 GLboolean error; 2510 struct gl_pixelstore_attrib unpack_no_border; 2511 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2512 2513 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2514 2515 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2516 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2517 dims, 2518 _mesa_lookup_enum_by_nr(target), level, 2519 _mesa_lookup_enum_by_nr(internalFormat), 2520 width, height, depth, border, 2521 _mesa_lookup_enum_by_nr(format), 2522 _mesa_lookup_enum_by_nr(type), pixels); 2523 2524 internalFormat = override_internal_format(internalFormat, width, height); 2525 2526 /* target error checking */ 2527 if (!legal_teximage_target(ctx, dims, target)) { 2528 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)", 2529 dims, _mesa_lookup_enum_by_nr(target)); 2530 return; 2531 } 2532 2533 /* general error checking */ 2534 error = texture_error_check(ctx, dims, target, level, internalFormat, 2535 format, type, width, height, depth, border); 2536 2537 if (_mesa_is_proxy_texture(target)) { 2538 /* Proxy texture: just clear or set state depending on error checking */ 2539 struct gl_texture_image *texImage = 2540 _mesa_get_proxy_tex_image(ctx, target, level); 2541 2542 if (error) { 2543 /* when error, clear all proxy texture image parameters */ 2544 if (texImage) 2545 clear_teximage_fields(texImage); 2546 } 2547 else { 2548 /* no error, set the tex image parameters */ 2549 struct gl_texture_object *texObj = 2550 _mesa_get_current_tex_object(ctx, target); 2551 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2552 target, level, 2553 internalFormat, 2554 format, type); 2555 2556 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2557 _mesa_init_teximage_fields(ctx, texImage, width, height, 2558 depth, border, internalFormat, 2559 texFormat); 2560 } 2561 else if (texImage) { 2562 clear_teximage_fields(texImage); 2563 } 2564 } 2565 } 2566 else { 2567 /* non-proxy target */ 2568 const GLuint face = _mesa_tex_target_to_face(target); 2569 struct gl_texture_object *texObj; 2570 struct gl_texture_image *texImage; 2571 2572 if (error) { 2573 return; /* error was recorded */ 2574 } 2575 2576 /* Allow a hardware driver to just strip out the border, to provide 2577 * reliable but slightly incorrect hardware rendering instead of 2578 * rarely-tested software fallback rendering. 2579 */ 2580 if (border && ctx->Const.StripTextureBorder) { 2581 strip_texture_border(target, &width, &height, &depth, unpack, 2582 &unpack_no_border); 2583 border = 0; 2584 unpack = &unpack_no_border; 2585 } 2586 2587 if (ctx->NewState & _NEW_PIXEL) 2588 _mesa_update_state(ctx); 2589 2590 texObj = _mesa_get_current_tex_object(ctx, target); 2591 2592 _mesa_lock_texture(ctx, texObj); 2593 { 2594 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2595 2596 if (!texImage) { 2597 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2598 } 2599 else { 2600 gl_format texFormat; 2601 2602 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2603 2604 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2605 internalFormat, format, 2606 type); 2607 2608 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2609 _mesa_init_teximage_fields(ctx, texImage, 2610 width, height, depth, 2611 border, internalFormat, texFormat); 2612 2613 /* Give the texture to the driver. <pixels> may be null. */ 2614 ctx->Driver.TexImage(ctx, dims, texImage, format, 2615 type, pixels, unpack); 2616 2617 check_gen_mipmap(ctx, target, texObj, level); 2618 2619 _mesa_update_fbo_texture(ctx, texObj, face, level); 2620 2621 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2622 } 2623 else { 2624 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2625 } 2626 } 2627 } 2628 _mesa_unlock_texture(ctx, texObj); 2629 } 2630} 2631 2632 2633/* 2634 * Called from the API. Note that width includes the border. 2635 */ 2636void GLAPIENTRY 2637_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 2638 GLsizei width, GLint border, GLenum format, 2639 GLenum type, const GLvoid *pixels ) 2640{ 2641 GET_CURRENT_CONTEXT(ctx); 2642 teximage(ctx, 1, target, level, internalFormat, width, 1, 1, 2643 border, format, type, pixels); 2644} 2645 2646 2647void GLAPIENTRY 2648_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 2649 GLsizei width, GLsizei height, GLint border, 2650 GLenum format, GLenum type, 2651 const GLvoid *pixels ) 2652{ 2653 GET_CURRENT_CONTEXT(ctx); 2654 teximage(ctx, 2, target, level, internalFormat, width, height, 1, 2655 border, format, type, pixels); 2656} 2657 2658 2659/* 2660 * Called by the API or display list executor. 2661 * Note that width and height include the border. 2662 */ 2663void GLAPIENTRY 2664_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 2665 GLsizei width, GLsizei height, GLsizei depth, 2666 GLint border, GLenum format, GLenum type, 2667 const GLvoid *pixels ) 2668{ 2669 GET_CURRENT_CONTEXT(ctx); 2670 teximage(ctx, 3, target, level, internalFormat, width, height, depth, 2671 border, format, type, pixels); 2672} 2673 2674 2675void GLAPIENTRY 2676_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 2677 GLsizei width, GLsizei height, GLsizei depth, 2678 GLint border, GLenum format, GLenum type, 2679 const GLvoid *pixels ) 2680{ 2681 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 2682 depth, border, format, type, pixels); 2683} 2684 2685 2686#if FEATURE_OES_EGL_image 2687void GLAPIENTRY 2688_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 2689{ 2690 struct gl_texture_object *texObj; 2691 struct gl_texture_image *texImage; 2692 bool valid_target; 2693 GET_CURRENT_CONTEXT(ctx); 2694 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2695 2696 switch (target) { 2697 case GL_TEXTURE_2D: 2698 valid_target = ctx->Extensions.OES_EGL_image; 2699 break; 2700 case GL_TEXTURE_EXTERNAL_OES: 2701 valid_target = ctx->Extensions.OES_EGL_image_external; 2702 break; 2703 default: 2704 valid_target = false; 2705 break; 2706 } 2707 2708 if (!valid_target) { 2709 _mesa_error(ctx, GL_INVALID_ENUM, 2710 "glEGLImageTargetTexture2D(target=%d)", target); 2711 return; 2712 } 2713 2714 if (ctx->NewState & _NEW_PIXEL) 2715 _mesa_update_state(ctx); 2716 2717 texObj = _mesa_get_current_tex_object(ctx, target); 2718 _mesa_lock_texture(ctx, texObj); 2719 2720 if (texObj->Immutable) { 2721 _mesa_error(ctx, GL_INVALID_OPERATION, 2722 "glEGLImageTargetTexture2D(texture is immutable)"); 2723 _mesa_unlock_texture(ctx, texObj); 2724 return; 2725 } 2726 2727 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 2728 if (!texImage) { 2729 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 2730 } else { 2731 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2732 2733 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 2734 texObj, texImage, image); 2735 2736 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2737 } 2738 _mesa_unlock_texture(ctx, texObj); 2739 2740} 2741#endif 2742 2743 2744 2745/** 2746 * Implement all the glTexSubImage1/2/3D() functions. 2747 */ 2748static void 2749texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 2750 GLint xoffset, GLint yoffset, GLint zoffset, 2751 GLsizei width, GLsizei height, GLsizei depth, 2752 GLenum format, GLenum type, const GLvoid *pixels ) 2753{ 2754 struct gl_texture_object *texObj; 2755 struct gl_texture_image *texImage; 2756 2757 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2758 2759 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2760 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 2761 dims, 2762 _mesa_lookup_enum_by_nr(target), level, 2763 xoffset, yoffset, zoffset, width, height, depth, 2764 _mesa_lookup_enum_by_nr(format), 2765 _mesa_lookup_enum_by_nr(type), pixels); 2766 2767 /* check target (proxies not allowed) */ 2768 if (!legal_texsubimage_target(ctx, dims, target)) { 2769 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 2770 dims, _mesa_lookup_enum_by_nr(target)); 2771 return; 2772 } 2773 2774 if (ctx->NewState & _NEW_PIXEL) 2775 _mesa_update_state(ctx); 2776 2777 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 2778 width, height, depth, format, type)) { 2779 return; /* error was detected */ 2780 } 2781 2782 texObj = _mesa_get_current_tex_object(ctx, target); 2783 2784 _mesa_lock_texture(ctx, texObj); 2785 { 2786 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 2787 2788 if (subtexture_error_check2(ctx, dims, target, level, 2789 xoffset, yoffset, zoffset, 2790 width, height, depth, 2791 format, type, texImage)) { 2792 /* error was recorded */ 2793 } 2794 else if (width > 0 && height > 0 && depth > 0) { 2795 /* If we have a border, offset=-1 is legal. Bias by border width. */ 2796 switch (dims) { 2797 case 3: 2798 if (target != GL_TEXTURE_2D_ARRAY) 2799 zoffset += texImage->Border; 2800 /* fall-through */ 2801 case 2: 2802 if (target != GL_TEXTURE_1D_ARRAY) 2803 yoffset += texImage->Border; 2804 /* fall-through */ 2805 case 1: 2806 xoffset += texImage->Border; 2807 } 2808 2809 ctx->Driver.TexSubImage(ctx, dims, texImage, 2810 xoffset, yoffset, zoffset, 2811 width, height, depth, 2812 format, type, pixels, &ctx->Unpack); 2813 2814 check_gen_mipmap(ctx, target, texObj, level); 2815 2816 ctx->NewState |= _NEW_TEXTURE; 2817 } 2818 } 2819 _mesa_unlock_texture(ctx, texObj); 2820} 2821 2822 2823void GLAPIENTRY 2824_mesa_TexSubImage1D( GLenum target, GLint level, 2825 GLint xoffset, GLsizei width, 2826 GLenum format, GLenum type, 2827 const GLvoid *pixels ) 2828{ 2829 GET_CURRENT_CONTEXT(ctx); 2830 texsubimage(ctx, 1, target, level, 2831 xoffset, 0, 0, 2832 width, 1, 1, 2833 format, type, pixels); 2834} 2835 2836 2837void GLAPIENTRY 2838_mesa_TexSubImage2D( GLenum target, GLint level, 2839 GLint xoffset, GLint yoffset, 2840 GLsizei width, GLsizei height, 2841 GLenum format, GLenum type, 2842 const GLvoid *pixels ) 2843{ 2844 GET_CURRENT_CONTEXT(ctx); 2845 texsubimage(ctx, 2, target, level, 2846 xoffset, yoffset, 0, 2847 width, height, 1, 2848 format, type, pixels); 2849} 2850 2851 2852 2853void GLAPIENTRY 2854_mesa_TexSubImage3D( GLenum target, GLint level, 2855 GLint xoffset, GLint yoffset, GLint zoffset, 2856 GLsizei width, GLsizei height, GLsizei depth, 2857 GLenum format, GLenum type, 2858 const GLvoid *pixels ) 2859{ 2860 GET_CURRENT_CONTEXT(ctx); 2861 texsubimage(ctx, 3, target, level, 2862 xoffset, yoffset, zoffset, 2863 width, height, depth, 2864 format, type, pixels); 2865} 2866 2867 2868 2869/** 2870 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 2871 * from. This depends on whether the texture contains color or depth values. 2872 */ 2873static struct gl_renderbuffer * 2874get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 2875{ 2876 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 2877 /* reading from depth/stencil buffer */ 2878 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 2879 } 2880 else { 2881 /* copying from color buffer */ 2882 return ctx->ReadBuffer->_ColorReadBuffer; 2883 } 2884} 2885 2886 2887 2888/** 2889 * Implement the glCopyTexImage1/2D() functions. 2890 */ 2891static void 2892copyteximage(struct gl_context *ctx, GLuint dims, 2893 GLenum target, GLint level, GLenum internalFormat, 2894 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 2895{ 2896 struct gl_texture_object *texObj; 2897 struct gl_texture_image *texImage; 2898 const GLuint face = _mesa_tex_target_to_face(target); 2899 2900 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2901 2902 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2903 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 2904 dims, 2905 _mesa_lookup_enum_by_nr(target), level, 2906 _mesa_lookup_enum_by_nr(internalFormat), 2907 x, y, width, height, border); 2908 2909 if (ctx->NewState & NEW_COPY_TEX_STATE) 2910 _mesa_update_state(ctx); 2911 2912 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 2913 width, height, border)) 2914 return; 2915 2916 texObj = _mesa_get_current_tex_object(ctx, target); 2917 2918 if (border && ctx->Const.StripTextureBorder) { 2919 x += border; 2920 width -= border * 2; 2921 if (dims == 2) { 2922 y += border; 2923 height -= border * 2; 2924 } 2925 border = 0; 2926 } 2927 2928 _mesa_lock_texture(ctx, texObj); 2929 { 2930 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2931 2932 if (!texImage) { 2933 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2934 } 2935 else { 2936 /* choose actual hw format */ 2937 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2938 target, level, 2939 internalFormat, 2940 GL_NONE, GL_NONE); 2941 2942 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 2943 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 2944 2945 /* Free old texture image */ 2946 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2947 2948 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 2949 border, internalFormat, texFormat); 2950 2951 /* Allocate texture memory (no pixel data yet) */ 2952 ctx->Driver.TexImage(ctx, dims, texImage, 2953 GL_NONE, GL_NONE, 2954 NULL, &ctx->Unpack); 2955 2956 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 2957 &width, &height)) { 2958 struct gl_renderbuffer *srcRb = 2959 get_copy_tex_image_source(ctx, texImage->TexFormat); 2960 2961 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 2962 srcRb, srcX, srcY, width, height); 2963 } 2964 2965 check_gen_mipmap(ctx, target, texObj, level); 2966 2967 _mesa_update_fbo_texture(ctx, texObj, face, level); 2968 2969 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2970 } 2971 else { 2972 /* probably too large of image */ 2973 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2974 } 2975 } 2976 } 2977 _mesa_unlock_texture(ctx, texObj); 2978} 2979 2980 2981 2982void GLAPIENTRY 2983_mesa_CopyTexImage1D( GLenum target, GLint level, 2984 GLenum internalFormat, 2985 GLint x, GLint y, 2986 GLsizei width, GLint border ) 2987{ 2988 GET_CURRENT_CONTEXT(ctx); 2989 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 2990} 2991 2992 2993 2994void GLAPIENTRY 2995_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 2996 GLint x, GLint y, GLsizei width, GLsizei height, 2997 GLint border ) 2998{ 2999 GET_CURRENT_CONTEXT(ctx); 3000 copyteximage(ctx, 2, target, level, internalFormat, 3001 x, y, width, height, border); 3002} 3003 3004 3005 3006/** 3007 * Implementation for glCopyTexSubImage1/2/3D() functions. 3008 */ 3009static void 3010copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3011 GLint xoffset, GLint yoffset, GLint zoffset, 3012 GLint x, GLint y, GLsizei width, GLsizei height) 3013{ 3014 struct gl_texture_object *texObj; 3015 struct gl_texture_image *texImage; 3016 3017 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3018 3019 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3020 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3021 dims, 3022 _mesa_lookup_enum_by_nr(target), 3023 level, xoffset, yoffset, zoffset, x, y, width, height); 3024 3025 if (ctx->NewState & NEW_COPY_TEX_STATE) 3026 _mesa_update_state(ctx); 3027 3028 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3029 return; 3030 3031 texObj = _mesa_get_current_tex_object(ctx, target); 3032 3033 _mesa_lock_texture(ctx, texObj); 3034 { 3035 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3036 3037 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3038 zoffset, width, height, texImage)) { 3039 /* error was recored */ 3040 } 3041 else { 3042 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3043 switch (dims) { 3044 case 3: 3045 if (target != GL_TEXTURE_2D_ARRAY) 3046 zoffset += texImage->Border; 3047 /* fall-through */ 3048 case 2: 3049 if (target != GL_TEXTURE_1D_ARRAY) 3050 yoffset += texImage->Border; 3051 /* fall-through */ 3052 case 1: 3053 xoffset += texImage->Border; 3054 } 3055 3056 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3057 &width, &height)) { 3058 struct gl_renderbuffer *srcRb = 3059 get_copy_tex_image_source(ctx, texImage->TexFormat); 3060 3061 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3062 xoffset, yoffset, zoffset, 3063 srcRb, x, y, width, height); 3064 3065 check_gen_mipmap(ctx, target, texObj, level); 3066 3067 ctx->NewState |= _NEW_TEXTURE; 3068 } 3069 } 3070 } 3071 _mesa_unlock_texture(ctx, texObj); 3072} 3073 3074 3075void GLAPIENTRY 3076_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3077 GLint xoffset, GLint x, GLint y, GLsizei width ) 3078{ 3079 GET_CURRENT_CONTEXT(ctx); 3080 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3081} 3082 3083 3084 3085void GLAPIENTRY 3086_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3087 GLint xoffset, GLint yoffset, 3088 GLint x, GLint y, GLsizei width, GLsizei height ) 3089{ 3090 GET_CURRENT_CONTEXT(ctx); 3091 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3092 width, height); 3093} 3094 3095 3096 3097void GLAPIENTRY 3098_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3099 GLint xoffset, GLint yoffset, GLint zoffset, 3100 GLint x, GLint y, GLsizei width, GLsizei height ) 3101{ 3102 GET_CURRENT_CONTEXT(ctx); 3103 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3104 x, y, width, height); 3105} 3106 3107 3108 3109 3110/**********************************************************************/ 3111/****** Compressed Textures ******/ 3112/**********************************************************************/ 3113 3114 3115/** 3116 * Return expected size of a compressed texture. 3117 */ 3118static GLuint 3119compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 3120 GLenum glformat) 3121{ 3122 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3123 return _mesa_format_image_size(mesaFormat, width, height, depth); 3124} 3125 3126 3127/* 3128 * Return compressed texture block size, in pixels. 3129 */ 3130static void 3131get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 3132{ 3133 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3134 _mesa_get_format_block_size(mesaFormat, bw, bh); 3135} 3136 3137 3138/** 3139 * Error checking for glCompressedTexImage[123]D(). 3140 * \param reason returns reason for error, if any 3141 * \return error code or GL_NO_ERROR. 3142 */ 3143static GLenum 3144compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 3145 GLenum target, GLint level, 3146 GLenum internalFormat, GLsizei width, 3147 GLsizei height, GLsizei depth, GLint border, 3148 GLsizei imageSize, char **reason) 3149{ 3150 const GLenum proxyTarget = get_proxy_target(target); 3151 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 3152 GLint expectedSize; 3153 GLenum choose_format; 3154 GLenum choose_type; 3155 GLenum proxy_format; 3156 3157 *reason = ""; /* no error */ 3158 3159 if (!target_can_be_compressed(ctx, target, internalFormat)) { 3160 *reason = "target"; 3161 return GL_INVALID_ENUM; 3162 } 3163 3164 /* This will detect any invalid internalFormat value */ 3165 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 3166 *reason = "internalFormat"; 3167 return GL_INVALID_ENUM; 3168 } 3169 3170 switch (internalFormat) { 3171#if FEATURE_ES 3172 case GL_PALETTE4_RGB8_OES: 3173 case GL_PALETTE4_RGBA8_OES: 3174 case GL_PALETTE4_R5_G6_B5_OES: 3175 case GL_PALETTE4_RGBA4_OES: 3176 case GL_PALETTE4_RGB5_A1_OES: 3177 case GL_PALETTE8_RGB8_OES: 3178 case GL_PALETTE8_RGBA8_OES: 3179 case GL_PALETTE8_R5_G6_B5_OES: 3180 case GL_PALETTE8_RGBA4_OES: 3181 case GL_PALETTE8_RGB5_A1_OES: 3182 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 3183 &choose_type); 3184 proxy_format = choose_format; 3185 3186 /* check level */ 3187 if (level > 0 || level < -maxLevels) { 3188 *reason = "level"; 3189 return GL_INVALID_VALUE; 3190 } 3191 3192 if (dimensions != 2) { 3193 *reason = "compressed paletted textures must be 2D"; 3194 return GL_INVALID_OPERATION; 3195 } 3196 3197 /* Figure out the expected texture size (in bytes). This will be 3198 * checked against the actual size later. 3199 */ 3200 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 3201 width, height); 3202 3203 /* This is for the benefit of the TestProxyTexImage below. It expects 3204 * level to be non-negative. OES_compressed_paletted_texture uses a 3205 * weird mechanism where the level specified to glCompressedTexImage2D 3206 * is -(n-1) number of levels in the texture, and the data specifies the 3207 * complete mipmap stack. This is done to ensure the palette is the 3208 * same for all levels. 3209 */ 3210 level = -level; 3211 break; 3212#endif 3213 3214 default: 3215 choose_format = GL_NONE; 3216 choose_type = GL_NONE; 3217 proxy_format = internalFormat; 3218 3219 /* check level */ 3220 if (level < 0 || level >= maxLevels) { 3221 *reason = "level"; 3222 return GL_INVALID_VALUE; 3223 } 3224 3225 /* Figure out the expected texture size (in bytes). This will be 3226 * checked against the actual size later. 3227 */ 3228 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 3229 break; 3230 } 3231 3232 /* This should really never fail */ 3233 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 3234 *reason = "internalFormat"; 3235 return GL_INVALID_ENUM; 3236 } 3237 3238 /* No compressed formats support borders at this time */ 3239 if (border != 0) { 3240 *reason = "border != 0"; 3241 return GL_INVALID_VALUE; 3242 } 3243 3244 /* For cube map, width must equal height */ 3245 if (_mesa_is_cube_face(target) && width != height) { 3246 *reason = "width != height"; 3247 return GL_INVALID_VALUE; 3248 } 3249 3250 /* check image size against compression block size */ 3251 { 3252 gl_format texFormat = 3253 ctx->Driver.ChooseTextureFormat(ctx, proxy_format, 3254 choose_format, choose_type); 3255 GLuint bw, bh; 3256 3257 _mesa_get_format_block_size(texFormat, &bw, &bh); 3258 if ((width > bw && width % bw > 0) || 3259 (height > bh && height % bh > 0)) { 3260 /* 3261 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is 3262 * generated [...] if any parameter combinations are not 3263 * supported by the specific compressed internal format. 3264 */ 3265 *reason = "invalid width or height for compression format"; 3266 return GL_INVALID_OPERATION; 3267 } 3268 } 3269 3270 /* check image sizes */ 3271 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 3272 proxy_format, choose_format, 3273 choose_type, 3274 width, height, depth, border)) { 3275 /* See error comment above */ 3276 *reason = "invalid width, height or format"; 3277 return GL_INVALID_OPERATION; 3278 } 3279 3280 /* check image size in bytes */ 3281 if (expectedSize != imageSize) { 3282 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 3283 * if <imageSize> is not consistent with the format, dimensions, and 3284 * contents of the specified image. 3285 */ 3286 *reason = "imageSize inconsistant with width/height/format"; 3287 return GL_INVALID_VALUE; 3288 } 3289 3290 if (!mutable_tex_object(ctx, target)) { 3291 *reason = "immutable texture"; 3292 return GL_INVALID_OPERATION; 3293 } 3294 3295 return GL_NO_ERROR; 3296} 3297 3298 3299/** 3300 * Error checking for glCompressedTexSubImage[123]D(). 3301 * \warning There are some bad assumptions here about the size of compressed 3302 * texture tiles (multiple of 4) used to test the validity of the 3303 * offset and size parameters. 3304 * \return error code or GL_NO_ERROR. 3305 */ 3306static GLenum 3307compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3308 GLenum target, GLint level, 3309 GLint xoffset, GLint yoffset, GLint zoffset, 3310 GLsizei width, GLsizei height, GLsizei depth, 3311 GLenum format, GLsizei imageSize) 3312{ 3313 GLint expectedSize, maxLevels = 0, maxTextureSize; 3314 GLuint bw, bh; 3315 (void) zoffset; 3316 3317 if (dimensions == 1) { 3318 /* 1D compressed textures not allowed */ 3319 return GL_INVALID_ENUM; 3320 } 3321 else if (dimensions == 2) { 3322 if (target == GL_PROXY_TEXTURE_2D) { 3323 maxLevels = ctx->Const.MaxTextureLevels; 3324 } 3325 else if (target == GL_TEXTURE_2D) { 3326 maxLevels = ctx->Const.MaxTextureLevels; 3327 } 3328 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3329 if (!ctx->Extensions.ARB_texture_cube_map) 3330 return GL_INVALID_ENUM; /*target*/ 3331 maxLevels = ctx->Const.MaxCubeTextureLevels; 3332 } 3333 else if (_mesa_is_cube_face(target)) { 3334 if (!ctx->Extensions.ARB_texture_cube_map) 3335 return GL_INVALID_ENUM; /*target*/ 3336 maxLevels = ctx->Const.MaxCubeTextureLevels; 3337 } 3338 else { 3339 return GL_INVALID_ENUM; /*target*/ 3340 } 3341 } 3342 else if (dimensions == 3) { 3343 /* 3D compressed textures not allowed */ 3344 return GL_INVALID_ENUM; 3345 } 3346 3347 maxTextureSize = 1 << (maxLevels - 1); 3348 3349 /* this will catch any invalid compressed format token */ 3350 if (!_mesa_is_compressed_format(ctx, format)) 3351 return GL_INVALID_ENUM; 3352 3353 if (width < 1 || width > maxTextureSize) 3354 return GL_INVALID_VALUE; 3355 3356 if ((height < 1 || height > maxTextureSize) 3357 && dimensions > 1) 3358 return GL_INVALID_VALUE; 3359 3360 if (level < 0 || level >= maxLevels) 3361 return GL_INVALID_VALUE; 3362 3363 /* 3364 * do checks which depend on compression block size 3365 */ 3366 get_compressed_block_size(format, &bw, &bh); 3367 3368 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3369 return GL_INVALID_VALUE; 3370 3371 if ((width % bw != 0) && width != 2 && width != 1) 3372 return GL_INVALID_VALUE; 3373 3374 if ((height % bh != 0) && height != 2 && height != 1) 3375 return GL_INVALID_VALUE; 3376 3377 expectedSize = compressed_tex_size(width, height, depth, format); 3378 if (expectedSize != imageSize) 3379 return GL_INVALID_VALUE; 3380 3381 return GL_NO_ERROR; 3382} 3383 3384 3385/** 3386 * Do second part of glCompressedTexSubImage error checking. 3387 * \return GL_TRUE if error found, GL_FALSE otherwise. 3388 */ 3389static GLboolean 3390compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3391 GLsizei width, GLsizei height, 3392 GLsizei depth, GLenum format, 3393 struct gl_texture_image *texImage) 3394{ 3395 3396 if ((GLint) format != texImage->InternalFormat) { 3397 _mesa_error(ctx, GL_INVALID_OPERATION, 3398 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3399 return GL_TRUE; 3400 } 3401 3402 if (compressedteximage_only_format(ctx, format)) { 3403 _mesa_error(ctx, GL_INVALID_OPERATION, 3404 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3405 , dims, format); 3406 return GL_TRUE; 3407 } 3408 3409 if (((width == 1 || width == 2) && 3410 width != (GLsizei) texImage->Width) || 3411 (width > (GLsizei) texImage->Width)) { 3412 _mesa_error(ctx, GL_INVALID_VALUE, 3413 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3414 return GL_TRUE; 3415 } 3416 3417 if (dims >= 2) { 3418 if (((height == 1 || height == 2) && 3419 height != (GLsizei) texImage->Height) || 3420 (height > (GLsizei) texImage->Height)) { 3421 _mesa_error(ctx, GL_INVALID_VALUE, 3422 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3423 return GL_TRUE; 3424 } 3425 } 3426 3427 if (dims >= 3) { 3428 if (((depth == 1 || depth == 2) && 3429 depth != (GLsizei) texImage->Depth) || 3430 (depth > (GLsizei) texImage->Depth)) { 3431 _mesa_error(ctx, GL_INVALID_VALUE, 3432 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3433 return GL_TRUE; 3434 } 3435 } 3436 3437 return GL_FALSE; 3438} 3439 3440 3441/** 3442 * Implementation of the glCompressedTexImage1/2/3D() functions. 3443 */ 3444static void 3445compressedteximage(struct gl_context *ctx, GLuint dims, 3446 GLenum target, GLint level, 3447 GLenum internalFormat, GLsizei width, 3448 GLsizei height, GLsizei depth, GLint border, 3449 GLsizei imageSize, const GLvoid *data) 3450{ 3451 GLenum error; 3452 char *reason = ""; 3453 3454 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3455 3456 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3457 _mesa_debug(ctx, 3458 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n", 3459 dims, 3460 _mesa_lookup_enum_by_nr(target), level, 3461 _mesa_lookup_enum_by_nr(internalFormat), 3462 width, height, depth, border, imageSize, data); 3463 3464 /* check target */ 3465 if (!legal_teximage_target(ctx, dims, target)) { 3466 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)", 3467 dims, _mesa_lookup_enum_by_nr(target)); 3468 return; 3469 } 3470 3471 error = compressed_texture_error_check(ctx, dims, target, level, 3472 internalFormat, width, height, depth, 3473 border, imageSize, &reason); 3474 3475#if FEATURE_ES 3476 /* XXX this is kind of a hack */ 3477 if (!error && dims == 2) { 3478 switch (internalFormat) { 3479 case GL_PALETTE4_RGB8_OES: 3480 case GL_PALETTE4_RGBA8_OES: 3481 case GL_PALETTE4_R5_G6_B5_OES: 3482 case GL_PALETTE4_RGBA4_OES: 3483 case GL_PALETTE4_RGB5_A1_OES: 3484 case GL_PALETTE8_RGB8_OES: 3485 case GL_PALETTE8_RGBA8_OES: 3486 case GL_PALETTE8_R5_G6_B5_OES: 3487 case GL_PALETTE8_RGBA4_OES: 3488 case GL_PALETTE8_RGB5_A1_OES: 3489 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 3490 width, height, imageSize, data); 3491 return; 3492 } 3493 } 3494#endif 3495 3496 if (_mesa_is_proxy_texture(target)) { 3497 /* Proxy texture: just check for errors and update proxy state */ 3498 struct gl_texture_image *texImage; 3499 3500 if (!error) { 3501 struct gl_texture_object *texObj = 3502 _mesa_get_current_tex_object(ctx, target); 3503 gl_format texFormat = 3504 _mesa_choose_texture_format(ctx, texObj, target, level, 3505 internalFormat, GL_NONE, GL_NONE); 3506 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 3507 error = GL_OUT_OF_MEMORY; 3508 } 3509 } 3510 3511 texImage = _mesa_get_proxy_tex_image(ctx, target, level); 3512 if (texImage) { 3513 if (error) { 3514 /* if error, clear all proxy texture image parameters */ 3515 clear_teximage_fields(texImage); 3516 } 3517 else { 3518 /* no error: store the teximage parameters */ 3519 _mesa_init_teximage_fields(ctx, texImage, width, height, 3520 depth, border, internalFormat, 3521 MESA_FORMAT_NONE); 3522 } 3523 } 3524 } 3525 else { 3526 /* non-proxy target */ 3527 struct gl_texture_object *texObj; 3528 struct gl_texture_image *texImage; 3529 3530 if (error) { 3531 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason); 3532 return; 3533 } 3534 3535 texObj = _mesa_get_current_tex_object(ctx, target); 3536 3537 _mesa_lock_texture(ctx, texObj); 3538 { 3539 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3540 if (!texImage) { 3541 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3542 "glCompressedTexImage%uD", dims); 3543 } 3544 else { 3545 gl_format texFormat; 3546 3547 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3548 3549 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3550 internalFormat, GL_NONE, 3551 GL_NONE); 3552 3553 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3554 _mesa_init_teximage_fields(ctx, texImage, 3555 width, height, depth, 3556 border, internalFormat, texFormat); 3557 3558 ctx->Driver.CompressedTexImage(ctx, dims, texImage, imageSize, 3559 data); 3560 3561 check_gen_mipmap(ctx, target, texObj, level); 3562 3563 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3564 } 3565 else { 3566 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3567 "glCompressedTexImage%uD", dims); 3568 } 3569 } 3570 } 3571 _mesa_unlock_texture(ctx, texObj); 3572 } 3573} 3574 3575 3576void GLAPIENTRY 3577_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3578 GLenum internalFormat, GLsizei width, 3579 GLint border, GLsizei imageSize, 3580 const GLvoid *data) 3581{ 3582 GET_CURRENT_CONTEXT(ctx); 3583 compressedteximage(ctx, 1, target, level, internalFormat, 3584 width, 1, 1, border, imageSize, data); 3585} 3586 3587 3588void GLAPIENTRY 3589_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3590 GLenum internalFormat, GLsizei width, 3591 GLsizei height, GLint border, GLsizei imageSize, 3592 const GLvoid *data) 3593{ 3594 GET_CURRENT_CONTEXT(ctx); 3595 compressedteximage(ctx, 2, target, level, internalFormat, 3596 width, height, 1, border, imageSize, data); 3597} 3598 3599 3600void GLAPIENTRY 3601_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3602 GLenum internalFormat, GLsizei width, 3603 GLsizei height, GLsizei depth, GLint border, 3604 GLsizei imageSize, const GLvoid *data) 3605{ 3606 GET_CURRENT_CONTEXT(ctx); 3607 compressedteximage(ctx, 3, target, level, internalFormat, 3608 width, height, depth, border, imageSize, data); 3609} 3610 3611 3612/** 3613 * Common helper for glCompressedTexSubImage1/2/3D(). 3614 */ 3615static void 3616compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3617 GLint xoffset, GLint yoffset, GLint zoffset, 3618 GLsizei width, GLsizei height, GLsizei depth, 3619 GLenum format, GLsizei imageSize, const GLvoid *data) 3620{ 3621 struct gl_texture_object *texObj; 3622 struct gl_texture_image *texImage; 3623 GLenum error; 3624 GET_CURRENT_CONTEXT(ctx); 3625 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3626 3627 error = compressed_subtexture_error_check(ctx, dims, target, level, 3628 xoffset, 0, 0, /* pos */ 3629 width, height, depth, /* size */ 3630 format, imageSize); 3631 if (error) { 3632 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3633 return; 3634 } 3635 3636 texObj = _mesa_get_current_tex_object(ctx, target); 3637 3638 _mesa_lock_texture(ctx, texObj); 3639 { 3640 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3641 assert(texImage); 3642 3643 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3644 format, texImage)) { 3645 /* error was recorded */ 3646 } 3647 else if (width > 0 && height > 0 && depth > 0) { 3648 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3649 xoffset, yoffset, zoffset, 3650 width, height, depth, 3651 format, imageSize, data); 3652 3653 check_gen_mipmap(ctx, target, texObj, level); 3654 3655 ctx->NewState |= _NEW_TEXTURE; 3656 } 3657 } 3658 _mesa_unlock_texture(ctx, texObj); 3659} 3660 3661 3662void GLAPIENTRY 3663_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3664 GLsizei width, GLenum format, 3665 GLsizei imageSize, const GLvoid *data) 3666{ 3667 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3668 format, imageSize, data); 3669} 3670 3671 3672void GLAPIENTRY 3673_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3674 GLint yoffset, GLsizei width, GLsizei height, 3675 GLenum format, GLsizei imageSize, 3676 const GLvoid *data) 3677{ 3678 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3679 width, height, 1, format, imageSize, data); 3680} 3681 3682 3683void GLAPIENTRY 3684_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3685 GLint yoffset, GLint zoffset, GLsizei width, 3686 GLsizei height, GLsizei depth, GLenum format, 3687 GLsizei imageSize, const GLvoid *data) 3688{ 3689 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3690 width, height, depth, format, imageSize, data); 3691} 3692 3693static gl_format 3694get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3695{ 3696 switch (internalFormat) { 3697 case GL_ALPHA8: 3698 return MESA_FORMAT_A8; 3699 case GL_ALPHA16: 3700 return MESA_FORMAT_A16; 3701 case GL_ALPHA16F_ARB: 3702 return MESA_FORMAT_ALPHA_FLOAT16; 3703 case GL_ALPHA32F_ARB: 3704 return MESA_FORMAT_ALPHA_FLOAT32; 3705 case GL_ALPHA8I_EXT: 3706 return MESA_FORMAT_ALPHA_INT8; 3707 case GL_ALPHA16I_EXT: 3708 return MESA_FORMAT_ALPHA_INT16; 3709 case GL_ALPHA32I_EXT: 3710 return MESA_FORMAT_ALPHA_INT32; 3711 case GL_ALPHA8UI_EXT: 3712 return MESA_FORMAT_ALPHA_UINT8; 3713 case GL_ALPHA16UI_EXT: 3714 return MESA_FORMAT_ALPHA_UINT16; 3715 case GL_ALPHA32UI_EXT: 3716 return MESA_FORMAT_ALPHA_UINT32; 3717 case GL_LUMINANCE8: 3718 return MESA_FORMAT_L8; 3719 case GL_LUMINANCE16: 3720 return MESA_FORMAT_L16; 3721 case GL_LUMINANCE16F_ARB: 3722 return MESA_FORMAT_LUMINANCE_FLOAT16; 3723 case GL_LUMINANCE32F_ARB: 3724 return MESA_FORMAT_LUMINANCE_FLOAT32; 3725 case GL_LUMINANCE8I_EXT: 3726 return MESA_FORMAT_LUMINANCE_INT8; 3727 case GL_LUMINANCE16I_EXT: 3728 return MESA_FORMAT_LUMINANCE_INT16; 3729 case GL_LUMINANCE32I_EXT: 3730 return MESA_FORMAT_LUMINANCE_INT32; 3731 case GL_LUMINANCE8UI_EXT: 3732 return MESA_FORMAT_LUMINANCE_UINT8; 3733 case GL_LUMINANCE16UI_EXT: 3734 return MESA_FORMAT_LUMINANCE_UINT16; 3735 case GL_LUMINANCE32UI_EXT: 3736 return MESA_FORMAT_LUMINANCE_UINT32; 3737 case GL_LUMINANCE8_ALPHA8: 3738 return MESA_FORMAT_AL88; 3739 case GL_LUMINANCE16_ALPHA16: 3740 return MESA_FORMAT_AL1616; 3741 case GL_LUMINANCE_ALPHA16F_ARB: 3742 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3743 case GL_LUMINANCE_ALPHA32F_ARB: 3744 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3745 case GL_LUMINANCE_ALPHA8I_EXT: 3746 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3747 case GL_LUMINANCE_ALPHA16I_EXT: 3748 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3749 case GL_LUMINANCE_ALPHA32I_EXT: 3750 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3751 case GL_LUMINANCE_ALPHA8UI_EXT: 3752 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3753 case GL_LUMINANCE_ALPHA16UI_EXT: 3754 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3755 case GL_LUMINANCE_ALPHA32UI_EXT: 3756 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3757 case GL_INTENSITY8: 3758 return MESA_FORMAT_I8; 3759 case GL_INTENSITY16: 3760 return MESA_FORMAT_I16; 3761 case GL_INTENSITY16F_ARB: 3762 return MESA_FORMAT_INTENSITY_FLOAT16; 3763 case GL_INTENSITY32F_ARB: 3764 return MESA_FORMAT_INTENSITY_FLOAT32; 3765 case GL_INTENSITY8I_EXT: 3766 return MESA_FORMAT_INTENSITY_INT8; 3767 case GL_INTENSITY16I_EXT: 3768 return MESA_FORMAT_INTENSITY_INT16; 3769 case GL_INTENSITY32I_EXT: 3770 return MESA_FORMAT_INTENSITY_INT32; 3771 case GL_INTENSITY8UI_EXT: 3772 return MESA_FORMAT_INTENSITY_UINT8; 3773 case GL_INTENSITY16UI_EXT: 3774 return MESA_FORMAT_INTENSITY_UINT16; 3775 case GL_INTENSITY32UI_EXT: 3776 return MESA_FORMAT_INTENSITY_UINT32; 3777 case GL_RGBA8: 3778 return MESA_FORMAT_RGBA8888_REV; 3779 case GL_RGBA16: 3780 return MESA_FORMAT_RGBA_16; 3781 case GL_RGBA16F_ARB: 3782 return MESA_FORMAT_RGBA_FLOAT16; 3783 case GL_RGBA32F_ARB: 3784 return MESA_FORMAT_RGBA_FLOAT32; 3785 case GL_RGBA8I_EXT: 3786 return MESA_FORMAT_RGBA_INT8; 3787 case GL_RGBA16I_EXT: 3788 return MESA_FORMAT_RGBA_INT16; 3789 case GL_RGBA32I_EXT: 3790 return MESA_FORMAT_RGBA_INT32; 3791 case GL_RGBA8UI_EXT: 3792 return MESA_FORMAT_RGBA_UINT8; 3793 case GL_RGBA16UI_EXT: 3794 return MESA_FORMAT_RGBA_UINT16; 3795 case GL_RGBA32UI_EXT: 3796 return MESA_FORMAT_RGBA_UINT32; 3797 3798 case GL_RG8: 3799 return MESA_FORMAT_GR88; 3800 case GL_RG16: 3801 return MESA_FORMAT_RG1616; 3802 case GL_RG16F: 3803 return MESA_FORMAT_RG_FLOAT16; 3804 case GL_RG32F: 3805 return MESA_FORMAT_RG_FLOAT32; 3806 case GL_RG8I: 3807 return MESA_FORMAT_RG_INT8; 3808 case GL_RG16I: 3809 return MESA_FORMAT_RG_INT16; 3810 case GL_RG32I: 3811 return MESA_FORMAT_RG_INT32; 3812 case GL_RG8UI: 3813 return MESA_FORMAT_RG_UINT8; 3814 case GL_RG16UI: 3815 return MESA_FORMAT_RG_UINT16; 3816 case GL_RG32UI: 3817 return MESA_FORMAT_RG_UINT32; 3818 3819 case GL_R8: 3820 return MESA_FORMAT_R8; 3821 case GL_R16: 3822 return MESA_FORMAT_R16; 3823 case GL_R16F: 3824 return MESA_FORMAT_R_FLOAT16; 3825 case GL_R32F: 3826 return MESA_FORMAT_R_FLOAT32; 3827 case GL_R8I: 3828 return MESA_FORMAT_R_INT8; 3829 case GL_R16I: 3830 return MESA_FORMAT_R_INT16; 3831 case GL_R32I: 3832 return MESA_FORMAT_R_INT32; 3833 case GL_R8UI: 3834 return MESA_FORMAT_R_UINT8; 3835 case GL_R16UI: 3836 return MESA_FORMAT_R_UINT16; 3837 case GL_R32UI: 3838 return MESA_FORMAT_R_UINT32; 3839 3840 default: 3841 return MESA_FORMAT_NONE; 3842 } 3843} 3844 3845static gl_format 3846validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3847{ 3848 gl_format format = get_texbuffer_format(ctx, internalFormat); 3849 GLenum datatype; 3850 3851 if (format == MESA_FORMAT_NONE) 3852 return MESA_FORMAT_NONE; 3853 3854 datatype = _mesa_get_format_datatype(format); 3855 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3856 return MESA_FORMAT_NONE; 3857 3858 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3859 return MESA_FORMAT_NONE; 3860 3861 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3862 * any mention of R/RG formats, but they appear in the GL 3.1 core 3863 * specification. 3864 */ 3865 if (ctx->Version <= 30) { 3866 GLenum base_format = _mesa_get_format_base_format(format); 3867 3868 if (base_format == GL_R || base_format == GL_RG) 3869 return MESA_FORMAT_NONE; 3870 } 3871 return format; 3872} 3873 3874 3875/** GL_ARB_texture_buffer_object */ 3876void GLAPIENTRY 3877_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 3878{ 3879 struct gl_texture_object *texObj; 3880 struct gl_buffer_object *bufObj; 3881 gl_format format; 3882 3883 GET_CURRENT_CONTEXT(ctx); 3884 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3885 3886 if (!ctx->Extensions.ARB_texture_buffer_object) { 3887 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 3888 return; 3889 } 3890 3891 if (target != GL_TEXTURE_BUFFER_ARB) { 3892 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 3893 return; 3894 } 3895 3896 format = validate_texbuffer_format(ctx, internalFormat); 3897 if (format == MESA_FORMAT_NONE) { 3898 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 3899 internalFormat); 3900 return; 3901 } 3902 3903 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 3904 if (buffer && !bufObj) { 3905 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 3906 return; 3907 } 3908 3909 texObj = _mesa_get_current_tex_object(ctx, target); 3910 3911 _mesa_lock_texture(ctx, texObj); 3912 { 3913 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 3914 texObj->BufferObjectFormat = internalFormat; 3915 texObj->_BufferObjectFormat = format; 3916 } 3917 _mesa_unlock_texture(ctx, texObj); 3918} 3919