teximage.c revision 19a15cd5ba320b71295c4afbe73c5d656f829ad8
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 "texcompress_cpal.h" 46#include "teximage.h" 47#include "texobj.h" 48#include "texstate.h" 49#include "mtypes.h" 50#include "glformats.h" 51 52 53/* Inexplicably, GL_HALF_FLOAT_OES has a different value than GL_HALF_FLOAT. 54 */ 55#ifndef GL_HALF_FLOAT_OES 56#define GL_HALF_FLOAT_OES 0x8D61 57#endif 58 59/** 60 * State changes which we care about for glCopyTex[Sub]Image() calls. 61 * In particular, we care about pixel transfer state and buffer state 62 * (such as glReadBuffer to make sure we read from the right renderbuffer). 63 */ 64#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL) 65 66 67 68/** 69 * Return the simple base format for a given internal texture format. 70 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. 71 * 72 * \param ctx GL context. 73 * \param internalFormat the internal texture format token or 1, 2, 3, or 4. 74 * 75 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, 76 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. 77 * 78 * This is the format which is used during texture application (i.e. the 79 * texture format and env mode determine the arithmetic used. 80 */ 81GLint 82_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat ) 83{ 84 switch (internalFormat) { 85 case GL_ALPHA: 86 case GL_ALPHA4: 87 case GL_ALPHA8: 88 case GL_ALPHA12: 89 case GL_ALPHA16: 90 return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1; 91 case 1: 92 case GL_LUMINANCE: 93 case GL_LUMINANCE4: 94 case GL_LUMINANCE8: 95 case GL_LUMINANCE12: 96 case GL_LUMINANCE16: 97 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1; 98 case 2: 99 case GL_LUMINANCE_ALPHA: 100 case GL_LUMINANCE4_ALPHA4: 101 case GL_LUMINANCE6_ALPHA2: 102 case GL_LUMINANCE8_ALPHA8: 103 case GL_LUMINANCE12_ALPHA4: 104 case GL_LUMINANCE12_ALPHA12: 105 case GL_LUMINANCE16_ALPHA16: 106 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1; 107 case GL_INTENSITY: 108 case GL_INTENSITY4: 109 case GL_INTENSITY8: 110 case GL_INTENSITY12: 111 case GL_INTENSITY16: 112 return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1; 113 case 3: 114 return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1; 115 case GL_RGB: 116 case GL_R3_G3_B2: 117 case GL_RGB4: 118 case GL_RGB5: 119 case GL_RGB8: 120 case GL_RGB10: 121 case GL_RGB12: 122 case GL_RGB16: 123 return GL_RGB; 124 case 4: 125 return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1; 126 case GL_RGBA: 127 case GL_RGBA2: 128 case GL_RGBA4: 129 case GL_RGB5_A1: 130 case GL_RGBA8: 131 case GL_RGB10_A2: 132 case GL_RGBA12: 133 case GL_RGBA16: 134 return GL_RGBA; 135 default: 136 ; /* fallthrough */ 137 } 138 139 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). 140 */ 141 if (_mesa_is_gles(ctx)) { 142 switch (internalFormat) { 143 case GL_BGRA: 144 return GL_RGBA; 145 default: 146 ; /* fallthrough */ 147 } 148 } 149 150 if (ctx->Extensions.ARB_ES2_compatibility) { 151 switch (internalFormat) { 152 case GL_RGB565: 153 return GL_RGB; 154 default: 155 ; /* fallthrough */ 156 } 157 } 158 159 if (ctx->Extensions.ARB_depth_texture) { 160 switch (internalFormat) { 161 case GL_DEPTH_COMPONENT: 162 case GL_DEPTH_COMPONENT16: 163 case GL_DEPTH_COMPONENT24: 164 case GL_DEPTH_COMPONENT32: 165 return GL_DEPTH_COMPONENT; 166 default: 167 ; /* fallthrough */ 168 } 169 } 170 171 switch (internalFormat) { 172 case GL_COMPRESSED_ALPHA: 173 return GL_ALPHA; 174 case GL_COMPRESSED_LUMINANCE: 175 return GL_LUMINANCE; 176 case GL_COMPRESSED_LUMINANCE_ALPHA: 177 return GL_LUMINANCE_ALPHA; 178 case GL_COMPRESSED_INTENSITY: 179 return GL_INTENSITY; 180 case GL_COMPRESSED_RGB: 181 return GL_RGB; 182 case GL_COMPRESSED_RGBA: 183 return GL_RGBA; 184 default: 185 ; /* fallthrough */ 186 } 187 188 if (ctx->Extensions.TDFX_texture_compression_FXT1) { 189 switch (internalFormat) { 190 case GL_COMPRESSED_RGB_FXT1_3DFX: 191 return GL_RGB; 192 case GL_COMPRESSED_RGBA_FXT1_3DFX: 193 return GL_RGBA; 194 default: 195 ; /* fallthrough */ 196 } 197 } 198 199 if (ctx->Extensions.EXT_texture_compression_s3tc) { 200 switch (internalFormat) { 201 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 202 return GL_RGB; 203 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 204 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 205 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 206 return GL_RGBA; 207 default: 208 ; /* fallthrough */ 209 } 210 } 211 212 if (ctx->Extensions.S3_s3tc) { 213 switch (internalFormat) { 214 case GL_RGB_S3TC: 215 case GL_RGB4_S3TC: 216 return GL_RGB; 217 case GL_RGBA_S3TC: 218 case GL_RGBA4_S3TC: 219 return GL_RGBA; 220 default: 221 ; /* fallthrough */ 222 } 223 } 224 225 if (ctx->Extensions.MESA_ycbcr_texture) { 226 if (internalFormat == GL_YCBCR_MESA) 227 return GL_YCBCR_MESA; 228 } 229 230 if (ctx->Extensions.ARB_texture_float) { 231 switch (internalFormat) { 232 case GL_ALPHA16F_ARB: 233 case GL_ALPHA32F_ARB: 234 return GL_ALPHA; 235 case GL_RGBA16F_ARB: 236 case GL_RGBA32F_ARB: 237 return GL_RGBA; 238 case GL_RGB16F_ARB: 239 case GL_RGB32F_ARB: 240 return GL_RGB; 241 case GL_INTENSITY16F_ARB: 242 case GL_INTENSITY32F_ARB: 243 return GL_INTENSITY; 244 case GL_LUMINANCE16F_ARB: 245 case GL_LUMINANCE32F_ARB: 246 return GL_LUMINANCE; 247 case GL_LUMINANCE_ALPHA16F_ARB: 248 case GL_LUMINANCE_ALPHA32F_ARB: 249 return GL_LUMINANCE_ALPHA; 250 default: 251 ; /* fallthrough */ 252 } 253 } 254 255 if (ctx->Extensions.ATI_envmap_bumpmap) { 256 switch (internalFormat) { 257 case GL_DUDV_ATI: 258 case GL_DU8DV8_ATI: 259 return GL_DUDV_ATI; 260 default: 261 ; /* fallthrough */ 262 } 263 } 264 265 if (ctx->Extensions.EXT_texture_snorm) { 266 switch (internalFormat) { 267 case GL_RED_SNORM: 268 case GL_R8_SNORM: 269 case GL_R16_SNORM: 270 return GL_RED; 271 case GL_RG_SNORM: 272 case GL_RG8_SNORM: 273 case GL_RG16_SNORM: 274 return GL_RG; 275 case GL_RGB_SNORM: 276 case GL_RGB8_SNORM: 277 case GL_RGB16_SNORM: 278 return GL_RGB; 279 case GL_RGBA_SNORM: 280 case GL_RGBA8_SNORM: 281 case GL_RGBA16_SNORM: 282 return GL_RGBA; 283 case GL_ALPHA_SNORM: 284 case GL_ALPHA8_SNORM: 285 case GL_ALPHA16_SNORM: 286 return GL_ALPHA; 287 case GL_LUMINANCE_SNORM: 288 case GL_LUMINANCE8_SNORM: 289 case GL_LUMINANCE16_SNORM: 290 return GL_LUMINANCE; 291 case GL_LUMINANCE_ALPHA_SNORM: 292 case GL_LUMINANCE8_ALPHA8_SNORM: 293 case GL_LUMINANCE16_ALPHA16_SNORM: 294 return GL_LUMINANCE_ALPHA; 295 case GL_INTENSITY_SNORM: 296 case GL_INTENSITY8_SNORM: 297 case GL_INTENSITY16_SNORM: 298 return GL_INTENSITY; 299 default: 300 ; /* fallthrough */ 301 } 302 } 303 304 if (ctx->Extensions.EXT_packed_depth_stencil) { 305 switch (internalFormat) { 306 case GL_DEPTH_STENCIL_EXT: 307 case GL_DEPTH24_STENCIL8_EXT: 308 return GL_DEPTH_STENCIL_EXT; 309 default: 310 ; /* fallthrough */ 311 } 312 } 313 314#if FEATURE_EXT_texture_sRGB 315 if (ctx->Extensions.EXT_texture_sRGB) { 316 switch (internalFormat) { 317 case GL_SRGB_EXT: 318 case GL_SRGB8_EXT: 319 case GL_COMPRESSED_SRGB_EXT: 320 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: 321 return GL_RGB; 322 case GL_SRGB_ALPHA_EXT: 323 case GL_SRGB8_ALPHA8_EXT: 324 case GL_COMPRESSED_SRGB_ALPHA_EXT: 325 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 326 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 327 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 328 return GL_RGBA; 329 case GL_SLUMINANCE_ALPHA_EXT: 330 case GL_SLUMINANCE8_ALPHA8_EXT: 331 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 332 return GL_LUMINANCE_ALPHA; 333 case GL_SLUMINANCE_EXT: 334 case GL_SLUMINANCE8_EXT: 335 case GL_COMPRESSED_SLUMINANCE_EXT: 336 return GL_LUMINANCE; 337 default: 338 ; /* fallthrough */ 339 } 340 } 341#endif /* FEATURE_EXT_texture_sRGB */ 342 343 if (ctx->Version >= 30 || 344 ctx->Extensions.EXT_texture_integer) { 345 switch (internalFormat) { 346 case GL_RGBA8UI_EXT: 347 case GL_RGBA16UI_EXT: 348 case GL_RGBA32UI_EXT: 349 case GL_RGBA8I_EXT: 350 case GL_RGBA16I_EXT: 351 case GL_RGBA32I_EXT: 352 case GL_RGB10_A2UI: 353 return GL_RGBA; 354 case GL_RGB8UI_EXT: 355 case GL_RGB16UI_EXT: 356 case GL_RGB32UI_EXT: 357 case GL_RGB8I_EXT: 358 case GL_RGB16I_EXT: 359 case GL_RGB32I_EXT: 360 return GL_RGB; 361 } 362 } 363 364 if (ctx->Extensions.EXT_texture_integer) { 365 switch (internalFormat) { 366 case GL_ALPHA8UI_EXT: 367 case GL_ALPHA16UI_EXT: 368 case GL_ALPHA32UI_EXT: 369 case GL_ALPHA8I_EXT: 370 case GL_ALPHA16I_EXT: 371 case GL_ALPHA32I_EXT: 372 return GL_ALPHA; 373 case GL_INTENSITY8UI_EXT: 374 case GL_INTENSITY16UI_EXT: 375 case GL_INTENSITY32UI_EXT: 376 case GL_INTENSITY8I_EXT: 377 case GL_INTENSITY16I_EXT: 378 case GL_INTENSITY32I_EXT: 379 return GL_INTENSITY; 380 case GL_LUMINANCE8UI_EXT: 381 case GL_LUMINANCE16UI_EXT: 382 case GL_LUMINANCE32UI_EXT: 383 case GL_LUMINANCE8I_EXT: 384 case GL_LUMINANCE16I_EXT: 385 case GL_LUMINANCE32I_EXT: 386 return GL_LUMINANCE; 387 case GL_LUMINANCE_ALPHA8UI_EXT: 388 case GL_LUMINANCE_ALPHA16UI_EXT: 389 case GL_LUMINANCE_ALPHA32UI_EXT: 390 case GL_LUMINANCE_ALPHA8I_EXT: 391 case GL_LUMINANCE_ALPHA16I_EXT: 392 case GL_LUMINANCE_ALPHA32I_EXT: 393 return GL_LUMINANCE_ALPHA; 394 default: 395 ; /* fallthrough */ 396 } 397 } 398 399 if (ctx->Extensions.ARB_texture_rg) { 400 switch (internalFormat) { 401 case GL_R16F: 402 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float. 403 */ 404 if (!ctx->Extensions.ARB_half_float_pixel) 405 break; 406 /* FALLTHROUGH */ 407 case GL_R32F: 408 if (!ctx->Extensions.ARB_texture_float) 409 break; 410 return GL_RED; 411 case GL_R8I: 412 case GL_R8UI: 413 case GL_R16I: 414 case GL_R16UI: 415 case GL_R32I: 416 case GL_R32UI: 417 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 418 break; 419 /* FALLTHROUGH */ 420 case GL_R8: 421 case GL_R16: 422 case GL_RED: 423 case GL_COMPRESSED_RED: 424 return GL_RED; 425 426 case GL_RG16F: 427 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float. 428 */ 429 if (!ctx->Extensions.ARB_half_float_pixel) 430 break; 431 /* FALLTHROUGH */ 432 case GL_RG32F: 433 if (!ctx->Extensions.ARB_texture_float) 434 break; 435 return GL_RG; 436 case GL_RG8I: 437 case GL_RG8UI: 438 case GL_RG16I: 439 case GL_RG16UI: 440 case GL_RG32I: 441 case GL_RG32UI: 442 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 443 break; 444 /* FALLTHROUGH */ 445 case GL_RG: 446 case GL_RG8: 447 case GL_RG16: 448 case GL_COMPRESSED_RG: 449 return GL_RG; 450 default: 451 ; /* fallthrough */ 452 } 453 } 454 455 if (ctx->Extensions.EXT_texture_shared_exponent) { 456 switch (internalFormat) { 457 case GL_RGB9_E5_EXT: 458 return GL_RGB; 459 default: 460 ; /* fallthrough */ 461 } 462 } 463 464 if (ctx->Extensions.EXT_packed_float) { 465 switch (internalFormat) { 466 case GL_R11F_G11F_B10F_EXT: 467 return GL_RGB; 468 default: 469 ; /* fallthrough */ 470 } 471 } 472 473 if (ctx->Extensions.ARB_depth_buffer_float) { 474 switch (internalFormat) { 475 case GL_DEPTH_COMPONENT32F: 476 return GL_DEPTH_COMPONENT; 477 case GL_DEPTH32F_STENCIL8: 478 return GL_DEPTH_STENCIL; 479 default: 480 ; /* fallthrough */ 481 } 482 } 483 484 if (ctx->Extensions.ARB_texture_compression_rgtc) { 485 switch (internalFormat) { 486 case GL_COMPRESSED_RED_RGTC1: 487 case GL_COMPRESSED_SIGNED_RED_RGTC1: 488 return GL_RED; 489 case GL_COMPRESSED_RG_RGTC2: 490 case GL_COMPRESSED_SIGNED_RG_RGTC2: 491 return GL_RG; 492 default: 493 ; /* fallthrough */ 494 } 495 } 496 497 if (ctx->Extensions.EXT_texture_compression_latc) { 498 switch (internalFormat) { 499 case GL_COMPRESSED_LUMINANCE_LATC1_EXT: 500 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: 501 return GL_LUMINANCE; 502 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: 503 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: 504 return GL_LUMINANCE_ALPHA; 505 default: 506 ; /* fallthrough */ 507 } 508 } 509 510 if (ctx->Extensions.ATI_texture_compression_3dc) { 511 switch (internalFormat) { 512 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: 513 return GL_LUMINANCE_ALPHA; 514 default: 515 ; /* fallthrough */ 516 } 517 } 518 519 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) { 520 switch (internalFormat) { 521 case GL_ETC1_RGB8_OES: 522 return GL_RGB; 523 default: 524 ; /* fallthrough */ 525 } 526 } 527 528 if (ctx->API == API_OPENGLES) { 529 switch (internalFormat) { 530 case GL_PALETTE4_RGB8_OES: 531 case GL_PALETTE4_R5_G6_B5_OES: 532 case GL_PALETTE8_RGB8_OES: 533 case GL_PALETTE8_R5_G6_B5_OES: 534 return GL_RGB; 535 case GL_PALETTE4_RGBA8_OES: 536 case GL_PALETTE8_RGB5_A1_OES: 537 case GL_PALETTE4_RGBA4_OES: 538 case GL_PALETTE4_RGB5_A1_OES: 539 case GL_PALETTE8_RGBA8_OES: 540 case GL_PALETTE8_RGBA4_OES: 541 return GL_RGBA; 542 default: 543 ; /* fallthrough */ 544 } 545 } 546 547 return -1; /* error */ 548} 549 550 551/** 552 * For cube map faces, return a face index in [0,5]. 553 * For other targets return 0; 554 */ 555GLuint 556_mesa_tex_target_to_face(GLenum target) 557{ 558 if (_mesa_is_cube_face(target)) 559 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 560 else 561 return 0; 562} 563 564 565 566/** 567 * Install gl_texture_image in a gl_texture_object according to the target 568 * and level parameters. 569 * 570 * \param tObj texture object. 571 * \param target texture target. 572 * \param level image level. 573 * \param texImage texture image. 574 */ 575static void 576set_tex_image(struct gl_texture_object *tObj, 577 GLenum target, GLint level, 578 struct gl_texture_image *texImage) 579{ 580 const GLuint face = _mesa_tex_target_to_face(target); 581 582 ASSERT(tObj); 583 ASSERT(texImage); 584 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES) 585 assert(level == 0); 586 587 tObj->Image[face][level] = texImage; 588 589 /* Set the 'back' pointer */ 590 texImage->TexObject = tObj; 591 texImage->Level = level; 592 texImage->Face = face; 593} 594 595 596/** 597 * Allocate a texture image structure. 598 * 599 * Called via ctx->Driver.NewTextureImage() unless overriden by a device 600 * driver. 601 * 602 * \return a pointer to gl_texture_image struct with all fields initialized to 603 * zero. 604 */ 605struct gl_texture_image * 606_mesa_new_texture_image( struct gl_context *ctx ) 607{ 608 (void) ctx; 609 return CALLOC_STRUCT(gl_texture_image); 610} 611 612 613/** 614 * Free a gl_texture_image and associated data. 615 * This function is a fallback called via ctx->Driver.DeleteTextureImage(). 616 * 617 * \param texImage texture image. 618 * 619 * Free the texture image structure and the associated image data. 620 */ 621void 622_mesa_delete_texture_image(struct gl_context *ctx, 623 struct gl_texture_image *texImage) 624{ 625 /* Free texImage->Data and/or any other driver-specific texture 626 * image storage. 627 */ 628 ASSERT(ctx->Driver.FreeTextureImageBuffer); 629 ctx->Driver.FreeTextureImageBuffer( ctx, texImage ); 630 free(texImage); 631} 632 633 634/** 635 * Test if a target is a proxy target. 636 * 637 * \param target texture target. 638 * 639 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. 640 */ 641GLboolean 642_mesa_is_proxy_texture(GLenum target) 643{ 644 /* 645 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no 646 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES. 647 */ 648 assert(NUM_TEXTURE_TARGETS == 7 + 2); 649 650 return (target == GL_PROXY_TEXTURE_1D || 651 target == GL_PROXY_TEXTURE_2D || 652 target == GL_PROXY_TEXTURE_3D || 653 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB || 654 target == GL_PROXY_TEXTURE_RECTANGLE_NV || 655 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT || 656 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT); 657} 658 659 660/** 661 * Return the proxy target which corresponds to the given texture target 662 */ 663GLenum 664_mesa_get_proxy_target(GLenum target) 665{ 666 switch (target) { 667 case GL_TEXTURE_1D: 668 case GL_PROXY_TEXTURE_1D: 669 return GL_PROXY_TEXTURE_1D; 670 case GL_TEXTURE_2D: 671 case GL_PROXY_TEXTURE_2D: 672 return GL_PROXY_TEXTURE_2D; 673 case GL_TEXTURE_3D: 674 case GL_PROXY_TEXTURE_3D: 675 return GL_PROXY_TEXTURE_3D; 676 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 682 case GL_TEXTURE_CUBE_MAP_ARB: 683 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 684 return GL_PROXY_TEXTURE_CUBE_MAP_ARB; 685 case GL_TEXTURE_RECTANGLE_NV: 686 case GL_PROXY_TEXTURE_RECTANGLE_NV: 687 return GL_PROXY_TEXTURE_RECTANGLE_NV; 688 case GL_TEXTURE_1D_ARRAY_EXT: 689 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 690 return GL_PROXY_TEXTURE_1D_ARRAY_EXT; 691 case GL_TEXTURE_2D_ARRAY_EXT: 692 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 693 return GL_PROXY_TEXTURE_2D_ARRAY_EXT; 694 default: 695 _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()"); 696 return 0; 697 } 698} 699 700 701/** 702 * Get the texture object that corresponds to the target of the given 703 * texture unit. The target should have already been checked for validity. 704 * 705 * \param ctx GL context. 706 * \param texUnit texture unit. 707 * \param target texture target. 708 * 709 * \return pointer to the texture object on success, or NULL on failure. 710 */ 711struct gl_texture_object * 712_mesa_select_tex_object(struct gl_context *ctx, 713 const struct gl_texture_unit *texUnit, 714 GLenum target) 715{ 716 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array || 717 ctx->Extensions.EXT_texture_array); 718 719 switch (target) { 720 case GL_TEXTURE_1D: 721 return texUnit->CurrentTex[TEXTURE_1D_INDEX]; 722 case GL_PROXY_TEXTURE_1D: 723 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]; 724 case GL_TEXTURE_2D: 725 return texUnit->CurrentTex[TEXTURE_2D_INDEX]; 726 case GL_PROXY_TEXTURE_2D: 727 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]; 728 case GL_TEXTURE_3D: 729 return texUnit->CurrentTex[TEXTURE_3D_INDEX]; 730 case GL_PROXY_TEXTURE_3D: 731 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]; 732 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 733 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 734 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 735 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 736 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 737 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 738 case GL_TEXTURE_CUBE_MAP_ARB: 739 return ctx->Extensions.ARB_texture_cube_map 740 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL; 741 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 742 return ctx->Extensions.ARB_texture_cube_map 743 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL; 744 case GL_TEXTURE_RECTANGLE_NV: 745 return ctx->Extensions.NV_texture_rectangle 746 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL; 747 case GL_PROXY_TEXTURE_RECTANGLE_NV: 748 return ctx->Extensions.NV_texture_rectangle 749 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL; 750 case GL_TEXTURE_1D_ARRAY_EXT: 751 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 752 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 753 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 754 case GL_TEXTURE_2D_ARRAY_EXT: 755 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 756 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 757 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 758 case GL_TEXTURE_BUFFER: 759 return _mesa_is_desktop_gl(ctx) 760 && ctx->Extensions.ARB_texture_buffer_object 761 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL; 762 case GL_TEXTURE_EXTERNAL_OES: 763 return ctx->Extensions.OES_EGL_image_external 764 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL; 765 default: 766 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); 767 return NULL; 768 } 769} 770 771 772/** 773 * Return pointer to texture object for given target on current texture unit. 774 */ 775struct gl_texture_object * 776_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target) 777{ 778 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 779 return _mesa_select_tex_object(ctx, texUnit, target); 780} 781 782 783/** 784 * Get a texture image pointer from a texture object, given a texture 785 * target and mipmap level. The target and level parameters should 786 * have already been error-checked. 787 * 788 * \param ctx GL context. 789 * \param texObj texture unit. 790 * \param target texture target. 791 * \param level image level. 792 * 793 * \return pointer to the texture image structure, or NULL on failure. 794 */ 795struct gl_texture_image * 796_mesa_select_tex_image(struct gl_context *ctx, 797 const struct gl_texture_object *texObj, 798 GLenum target, GLint level) 799{ 800 const GLuint face = _mesa_tex_target_to_face(target); 801 802 ASSERT(texObj); 803 ASSERT(level >= 0); 804 ASSERT(level < MAX_TEXTURE_LEVELS); 805 806 return texObj->Image[face][level]; 807} 808 809 810/** 811 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate 812 * it and install it. Only return NULL if passed a bad parameter or run 813 * out of memory. 814 */ 815struct gl_texture_image * 816_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj, 817 GLenum target, GLint level) 818{ 819 struct gl_texture_image *texImage; 820 821 if (!texObj) 822 return NULL; 823 824 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 825 if (!texImage) { 826 texImage = ctx->Driver.NewTextureImage(ctx); 827 if (!texImage) { 828 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation"); 829 return NULL; 830 } 831 832 set_tex_image(texObj, target, level, texImage); 833 } 834 835 return texImage; 836} 837 838 839/** 840 * Return pointer to the specified proxy texture image. 841 * Note that proxy textures are per-context, not per-texture unit. 842 * \return pointer to texture image or NULL if invalid target, invalid 843 * level, or out of memory. 844 */ 845static struct gl_texture_image * 846get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level) 847{ 848 struct gl_texture_image *texImage; 849 GLuint texIndex; 850 851 if (level < 0) 852 return NULL; 853 854 switch (target) { 855 case GL_PROXY_TEXTURE_1D: 856 if (level >= ctx->Const.MaxTextureLevels) 857 return NULL; 858 texIndex = TEXTURE_1D_INDEX; 859 break; 860 case GL_PROXY_TEXTURE_2D: 861 if (level >= ctx->Const.MaxTextureLevels) 862 return NULL; 863 texIndex = TEXTURE_2D_INDEX; 864 break; 865 case GL_PROXY_TEXTURE_3D: 866 if (level >= ctx->Const.Max3DTextureLevels) 867 return NULL; 868 texIndex = TEXTURE_3D_INDEX; 869 break; 870 case GL_PROXY_TEXTURE_CUBE_MAP: 871 if (level >= ctx->Const.MaxCubeTextureLevels) 872 return NULL; 873 texIndex = TEXTURE_CUBE_INDEX; 874 break; 875 case GL_PROXY_TEXTURE_RECTANGLE_NV: 876 if (level > 0) 877 return NULL; 878 texIndex = TEXTURE_RECT_INDEX; 879 break; 880 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 881 if (level >= ctx->Const.MaxTextureLevels) 882 return NULL; 883 texIndex = TEXTURE_1D_ARRAY_INDEX; 884 break; 885 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 886 if (level >= ctx->Const.MaxTextureLevels) 887 return NULL; 888 texIndex = TEXTURE_2D_ARRAY_INDEX; 889 break; 890 default: 891 return NULL; 892 } 893 894 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level]; 895 if (!texImage) { 896 texImage = ctx->Driver.NewTextureImage(ctx); 897 if (!texImage) { 898 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation"); 899 return NULL; 900 } 901 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage; 902 /* Set the 'back' pointer */ 903 texImage->TexObject = ctx->Texture.ProxyTex[texIndex]; 904 } 905 return texImage; 906} 907 908 909/** 910 * Get the maximum number of allowed mipmap levels. 911 * 912 * \param ctx GL context. 913 * \param target texture target. 914 * 915 * \return the maximum number of allowed mipmap levels for the given 916 * texture target, or zero if passed a bad target. 917 * 918 * \sa gl_constants. 919 */ 920GLint 921_mesa_max_texture_levels(struct gl_context *ctx, GLenum target) 922{ 923 switch (target) { 924 case GL_TEXTURE_1D: 925 case GL_PROXY_TEXTURE_1D: 926 case GL_TEXTURE_2D: 927 case GL_PROXY_TEXTURE_2D: 928 return ctx->Const.MaxTextureLevels; 929 case GL_TEXTURE_3D: 930 case GL_PROXY_TEXTURE_3D: 931 return ctx->Const.Max3DTextureLevels; 932 case GL_TEXTURE_CUBE_MAP: 933 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 934 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 935 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 936 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 937 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 938 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 939 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 940 return ctx->Extensions.ARB_texture_cube_map 941 ? ctx->Const.MaxCubeTextureLevels : 0; 942 case GL_TEXTURE_RECTANGLE_NV: 943 case GL_PROXY_TEXTURE_RECTANGLE_NV: 944 return ctx->Extensions.NV_texture_rectangle ? 1 : 0; 945 case GL_TEXTURE_1D_ARRAY_EXT: 946 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 947 case GL_TEXTURE_2D_ARRAY_EXT: 948 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 949 return (ctx->Extensions.MESA_texture_array || 950 ctx->Extensions.EXT_texture_array) 951 ? ctx->Const.MaxTextureLevels : 0; 952 case GL_TEXTURE_BUFFER: 953 return _mesa_is_desktop_gl(ctx) 954 && ctx->Extensions.ARB_texture_buffer_object 955 ? 1 : 0; 956 case GL_TEXTURE_EXTERNAL_OES: 957 /* fall-through */ 958 default: 959 return 0; /* bad target */ 960 } 961} 962 963 964/** 965 * Return number of dimensions per mipmap level for the given texture target. 966 */ 967GLint 968_mesa_get_texture_dimensions(GLenum target) 969{ 970 switch (target) { 971 case GL_TEXTURE_1D: 972 case GL_PROXY_TEXTURE_1D: 973 return 1; 974 case GL_TEXTURE_2D: 975 case GL_TEXTURE_RECTANGLE: 976 case GL_TEXTURE_CUBE_MAP: 977 case GL_PROXY_TEXTURE_2D: 978 case GL_PROXY_TEXTURE_RECTANGLE: 979 case GL_PROXY_TEXTURE_CUBE_MAP: 980 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 981 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 982 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 983 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 984 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 985 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 986 case GL_TEXTURE_1D_ARRAY: 987 case GL_PROXY_TEXTURE_1D_ARRAY: 988 case GL_TEXTURE_EXTERNAL_OES: 989 return 2; 990 case GL_TEXTURE_3D: 991 case GL_PROXY_TEXTURE_3D: 992 case GL_TEXTURE_2D_ARRAY: 993 case GL_PROXY_TEXTURE_2D_ARRAY: 994 return 3; 995 case GL_TEXTURE_BUFFER: 996 /* fall-through */ 997 default: 998 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", 999 target); 1000 return 2; 1001 } 1002} 1003 1004 1005 1006 1007#if 000 /* not used anymore */ 1008/* 1009 * glTexImage[123]D can accept a NULL image pointer. In this case we 1010 * create a texture image with unspecified image contents per the OpenGL 1011 * spec. 1012 */ 1013static GLubyte * 1014make_null_texture(GLint width, GLint height, GLint depth, GLenum format) 1015{ 1016 const GLint components = _mesa_components_in_format(format); 1017 const GLint numPixels = width * height * depth; 1018 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); 1019 1020#ifdef DEBUG 1021 /* 1022 * Let's see if anyone finds this. If glTexImage2D() is called with 1023 * a NULL image pointer then load the texture image with something 1024 * interesting instead of leaving it indeterminate. 1025 */ 1026 if (data) { 1027 static const char message[8][32] = { 1028 " X X XXXXX XXX X ", 1029 " XX XX X X X X X ", 1030 " X X X X X X X ", 1031 " X X XXXX XXX XXXXX ", 1032 " X X X X X X ", 1033 " X X X X X X X ", 1034 " X X XXXXX XXX X X ", 1035 " " 1036 }; 1037 1038 GLubyte *imgPtr = data; 1039 GLint h, i, j, k; 1040 for (h = 0; h < depth; h++) { 1041 for (i = 0; i < height; i++) { 1042 GLint srcRow = 7 - (i % 8); 1043 for (j = 0; j < width; j++) { 1044 GLint srcCol = j % 32; 1045 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 1046 for (k = 0; k < components; k++) { 1047 *imgPtr++ = texel; 1048 } 1049 } 1050 } 1051 } 1052 } 1053#endif 1054 1055 return data; 1056} 1057#endif 1058 1059 1060 1061/** 1062 * Set the size and format-related fields of a gl_texture_image struct 1063 * to zero. This is used when a proxy texture test fails. 1064 */ 1065static void 1066clear_teximage_fields(struct gl_texture_image *img) 1067{ 1068 ASSERT(img); 1069 img->_BaseFormat = 0; 1070 img->InternalFormat = 0; 1071 img->Border = 0; 1072 img->Width = 0; 1073 img->Height = 0; 1074 img->Depth = 0; 1075 img->Width2 = 0; 1076 img->Height2 = 0; 1077 img->Depth2 = 0; 1078 img->WidthLog2 = 0; 1079 img->HeightLog2 = 0; 1080 img->DepthLog2 = 0; 1081 img->TexFormat = MESA_FORMAT_NONE; 1082} 1083 1084 1085/** 1086 * Initialize basic fields of the gl_texture_image struct. 1087 * 1088 * \param ctx GL context. 1089 * \param img texture image structure to be initialized. 1090 * \param width image width. 1091 * \param height image height. 1092 * \param depth image depth. 1093 * \param border image border. 1094 * \param internalFormat internal format. 1095 * \param format the actual hardware format (one of MESA_FORMAT_*) 1096 * 1097 * Fills in the fields of \p img with the given information. 1098 * Note: width, height and depth include the border. 1099 */ 1100void 1101_mesa_init_teximage_fields(struct gl_context *ctx, 1102 struct gl_texture_image *img, 1103 GLsizei width, GLsizei height, GLsizei depth, 1104 GLint border, GLenum internalFormat, 1105 gl_format format) 1106{ 1107 GLenum target; 1108 ASSERT(img); 1109 ASSERT(width >= 0); 1110 ASSERT(height >= 0); 1111 ASSERT(depth >= 0); 1112 1113 target = img->TexObject->Target; 1114 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); 1115 ASSERT(img->_BaseFormat > 0); 1116 img->InternalFormat = internalFormat; 1117 img->Border = border; 1118 img->Width = width; 1119 img->Height = height; 1120 img->Depth = depth; 1121 1122 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ 1123 img->WidthLog2 = _mesa_logbase2(img->Width2); 1124 1125 switch(target) { 1126 case GL_TEXTURE_1D: 1127 case GL_TEXTURE_BUFFER: 1128 case GL_PROXY_TEXTURE_1D: 1129 if (height == 0) 1130 img->Height2 = 0; 1131 else 1132 img->Height2 = 1; 1133 img->HeightLog2 = 0; 1134 if (depth == 0) 1135 img->Depth2 = 0; 1136 else 1137 img->Depth2 = 1; 1138 img->DepthLog2 = 0; 1139 break; 1140 case GL_TEXTURE_1D_ARRAY: 1141 case GL_PROXY_TEXTURE_1D_ARRAY: 1142 img->Height2 = height; /* no border */ 1143 img->HeightLog2 = 0; /* not used */ 1144 if (depth == 0) 1145 img->Depth2 = 0; 1146 else 1147 img->Depth2 = 1; 1148 img->DepthLog2 = 0; 1149 break; 1150 case GL_TEXTURE_2D: 1151 case GL_TEXTURE_RECTANGLE: 1152 case GL_TEXTURE_CUBE_MAP: 1153 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1154 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1155 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1156 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1157 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1158 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1159 case GL_TEXTURE_EXTERNAL_OES: 1160 case GL_PROXY_TEXTURE_2D: 1161 case GL_PROXY_TEXTURE_RECTANGLE: 1162 case GL_PROXY_TEXTURE_CUBE_MAP: 1163 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1164 img->HeightLog2 = _mesa_logbase2(img->Height2); 1165 if (depth == 0) 1166 img->Depth2 = 0; 1167 else 1168 img->Depth2 = 1; 1169 img->DepthLog2 = 0; 1170 break; 1171 case GL_TEXTURE_2D_ARRAY: 1172 case GL_PROXY_TEXTURE_2D_ARRAY: 1173 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1174 img->HeightLog2 = _mesa_logbase2(img->Height2); 1175 img->Depth2 = depth; /* no border */ 1176 img->DepthLog2 = 0; /* not used */ 1177 break; 1178 case GL_TEXTURE_3D: 1179 case GL_PROXY_TEXTURE_3D: 1180 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1181 img->HeightLog2 = _mesa_logbase2(img->Height2); 1182 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ 1183 img->DepthLog2 = _mesa_logbase2(img->Depth2); 1184 break; 1185 default: 1186 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()", 1187 target); 1188 } 1189 1190 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 1191 img->TexFormat = format; 1192} 1193 1194 1195/** 1196 * Free and clear fields of the gl_texture_image struct. 1197 * 1198 * \param ctx GL context. 1199 * \param texImage texture image structure to be cleared. 1200 * 1201 * After the call, \p texImage will have no data associated with it. Its 1202 * fields are cleared so that its parent object will test incomplete. 1203 */ 1204void 1205_mesa_clear_texture_image(struct gl_context *ctx, 1206 struct gl_texture_image *texImage) 1207{ 1208 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 1209 clear_teximage_fields(texImage); 1210} 1211 1212 1213/** 1214 * This is the fallback for Driver.TestProxyTexImage(). Test the texture 1215 * level, width, height and depth against the ctx->Const limits for textures. 1216 * 1217 * A hardware driver might override this function if, for example, the 1218 * max 3D texture size is 512x512x64 (i.e. not a cube). 1219 * 1220 * Note that width, height, depth == 0 is not an error. However, a 1221 * texture with zero width/height/depth will be considered "incomplete" 1222 * and texturing will effectively be disabled. 1223 * 1224 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, 1225 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, 1226 * GL_PROXY_TEXTURE_CUBE_MAP_ARB. 1227 * \param level as passed to glTexImage 1228 * \param internalFormat as passed to glTexImage 1229 * \param format as passed to glTexImage 1230 * \param type as passed to glTexImage 1231 * \param width as passed to glTexImage 1232 * \param height as passed to glTexImage 1233 * \param depth as passed to glTexImage 1234 * \param border as passed to glTexImage 1235 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. 1236 */ 1237GLboolean 1238_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, 1239 GLint internalFormat, GLenum format, GLenum type, 1240 GLint width, GLint height, GLint depth, GLint border) 1241{ 1242 GLint maxSize; 1243 1244 (void) internalFormat; 1245 (void) format; 1246 (void) type; 1247 1248 switch (target) { 1249 case GL_PROXY_TEXTURE_1D: 1250 if (level >= ctx->Const.MaxTextureLevels) 1251 return GL_FALSE; 1252 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */ 1253 maxSize >>= level; /* level size */ 1254 if (width < 2 * border || width > 2 * border + maxSize) 1255 return GL_FALSE; 1256 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1257 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1258 return GL_FALSE; 1259 } 1260 return GL_TRUE; 1261 1262 case GL_PROXY_TEXTURE_2D: 1263 if (level >= ctx->Const.MaxTextureLevels) 1264 return GL_FALSE; 1265 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1266 maxSize >>= level; 1267 if (width < 2 * border || width > 2 * border + maxSize) 1268 return GL_FALSE; 1269 if (height < 2 * border || height > 2 * border + maxSize) 1270 return GL_FALSE; 1271 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1272 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1273 return GL_FALSE; 1274 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1275 return GL_FALSE; 1276 } 1277 return GL_TRUE; 1278 1279 case GL_PROXY_TEXTURE_3D: 1280 if (level >= ctx->Const.Max3DTextureLevels) 1281 return GL_FALSE; 1282 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1283 maxSize >>= level; 1284 if (width < 2 * border || width > 2 * border + maxSize) 1285 return GL_FALSE; 1286 if (height < 2 * border || height > 2 * border + maxSize) 1287 return GL_FALSE; 1288 if (depth < 2 * border || depth > 2 * border + maxSize) 1289 return GL_FALSE; 1290 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1291 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1292 return GL_FALSE; 1293 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1294 return GL_FALSE; 1295 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1296 return GL_FALSE; 1297 } 1298 return GL_TRUE; 1299 1300 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1301 if (level != 0) 1302 return GL_FALSE; 1303 maxSize = ctx->Const.MaxTextureRectSize; 1304 if (width < 0 || width > maxSize) 1305 return GL_FALSE; 1306 if (height < 0 || height > maxSize) 1307 return GL_FALSE; 1308 return GL_TRUE; 1309 1310 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1311 if (level >= ctx->Const.MaxCubeTextureLevels) 1312 return GL_FALSE; 1313 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1314 maxSize >>= level; 1315 if (width < 2 * border || width > 2 * border + maxSize) 1316 return GL_FALSE; 1317 if (height < 2 * border || height > 2 * border + maxSize) 1318 return GL_FALSE; 1319 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1320 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1321 return GL_FALSE; 1322 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1323 return GL_FALSE; 1324 } 1325 return GL_TRUE; 1326 1327 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1328 if (level >= ctx->Const.MaxTextureLevels) 1329 return GL_FALSE; 1330 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1331 maxSize >>= level; 1332 if (width < 2 * border || width > 2 * border + maxSize) 1333 return GL_FALSE; 1334 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1335 return GL_FALSE; 1336 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1337 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1338 return GL_FALSE; 1339 } 1340 return GL_TRUE; 1341 1342 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1343 if (level >= ctx->Const.MaxTextureLevels) 1344 return GL_FALSE; 1345 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1346 maxSize >>= level; 1347 if (width < 2 * border || width > 2 * border + maxSize) 1348 return GL_FALSE; 1349 if (height < 2 * border || height > 2 * border + maxSize) 1350 return GL_FALSE; 1351 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1352 return GL_FALSE; 1353 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1354 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1355 return GL_FALSE; 1356 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1357 return GL_FALSE; 1358 } 1359 return GL_TRUE; 1360 1361 default: 1362 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1363 return GL_FALSE; 1364 } 1365} 1366 1367 1368/** 1369 * Check if the memory used by the texture would exceed the driver's limit. 1370 * This lets us support a max 3D texture size of 8K (for example) but 1371 * prevents allocating a full 8K x 8K x 8K texture. 1372 * XXX this could be rolled into the proxy texture size test (above) but 1373 * we don't have the actual texture internal format at that point. 1374 */ 1375static GLboolean 1376legal_texture_size(struct gl_context *ctx, gl_format format, 1377 GLint width, GLint height, GLint depth) 1378{ 1379 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1380 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1381 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1382} 1383 1384 1385/** 1386 * Return true if the format is only valid for glCompressedTexImage. 1387 */ 1388static GLboolean 1389compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1390{ 1391 switch (format) { 1392 case GL_ETC1_RGB8_OES: 1393 case GL_PALETTE4_RGB8_OES: 1394 case GL_PALETTE4_RGBA8_OES: 1395 case GL_PALETTE4_R5_G6_B5_OES: 1396 case GL_PALETTE4_RGBA4_OES: 1397 case GL_PALETTE4_RGB5_A1_OES: 1398 case GL_PALETTE8_RGB8_OES: 1399 case GL_PALETTE8_RGBA8_OES: 1400 case GL_PALETTE8_R5_G6_B5_OES: 1401 case GL_PALETTE8_RGBA4_OES: 1402 case GL_PALETTE8_RGB5_A1_OES: 1403 return GL_TRUE; 1404 default: 1405 return GL_FALSE; 1406 } 1407} 1408 1409 1410/** 1411 * Helper function to determine whether a target and specific compression 1412 * format are supported. 1413 */ 1414static GLboolean 1415target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1416 GLenum intFormat) 1417{ 1418 (void) intFormat; /* not used yet */ 1419 1420 switch (target) { 1421 case GL_TEXTURE_2D: 1422 case GL_PROXY_TEXTURE_2D: 1423 return GL_TRUE; /* true for any compressed format so far */ 1424 case GL_PROXY_TEXTURE_CUBE_MAP: 1425 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1426 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1427 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1428 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1429 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1430 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1431 return ctx->Extensions.ARB_texture_cube_map; 1432 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1433 case GL_TEXTURE_2D_ARRAY_EXT: 1434 return (ctx->Extensions.MESA_texture_array || 1435 ctx->Extensions.EXT_texture_array); 1436 default: 1437 return GL_FALSE; 1438 } 1439} 1440 1441 1442/** 1443 * Check if the given texture target value is legal for a 1444 * glTexImage1/2/3D call. 1445 */ 1446static GLboolean 1447legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1448{ 1449 switch (dims) { 1450 case 1: 1451 switch (target) { 1452 case GL_TEXTURE_1D: 1453 case GL_PROXY_TEXTURE_1D: 1454 return _mesa_is_desktop_gl(ctx); 1455 default: 1456 return GL_FALSE; 1457 } 1458 case 2: 1459 switch (target) { 1460 case GL_TEXTURE_2D: 1461 return GL_TRUE; 1462 case GL_PROXY_TEXTURE_2D: 1463 return _mesa_is_desktop_gl(ctx); 1464 case GL_PROXY_TEXTURE_CUBE_MAP: 1465 return _mesa_is_desktop_gl(ctx) 1466 && ctx->Extensions.ARB_texture_cube_map; 1467 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1468 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1469 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1470 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1471 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1472 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1473 return ctx->Extensions.ARB_texture_cube_map; 1474 case GL_TEXTURE_RECTANGLE_NV: 1475 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1476 return _mesa_is_desktop_gl(ctx) 1477 && ctx->Extensions.NV_texture_rectangle; 1478 case GL_TEXTURE_1D_ARRAY_EXT: 1479 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1480 return _mesa_is_desktop_gl(ctx) 1481 && (ctx->Extensions.MESA_texture_array || 1482 ctx->Extensions.EXT_texture_array); 1483 default: 1484 return GL_FALSE; 1485 } 1486 case 3: 1487 switch (target) { 1488 case GL_TEXTURE_3D: 1489 return GL_TRUE; 1490 case GL_PROXY_TEXTURE_3D: 1491 return _mesa_is_desktop_gl(ctx); 1492 case GL_TEXTURE_2D_ARRAY_EXT: 1493 return (_mesa_is_desktop_gl(ctx) 1494 && (ctx->Extensions.MESA_texture_array || 1495 ctx->Extensions.EXT_texture_array)) 1496 || _mesa_is_gles3(ctx); 1497 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1498 return _mesa_is_desktop_gl(ctx) 1499 && (ctx->Extensions.MESA_texture_array || 1500 ctx->Extensions.EXT_texture_array); 1501 default: 1502 return GL_FALSE; 1503 } 1504 default: 1505 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1506 return GL_FALSE; 1507 } 1508} 1509 1510 1511/** 1512 * Check if the given texture target value is legal for a 1513 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1514 * The difference compared to legal_teximage_target() above is that 1515 * proxy targets are not supported. 1516 */ 1517static GLboolean 1518legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1519{ 1520 switch (dims) { 1521 case 1: 1522 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D; 1523 case 2: 1524 switch (target) { 1525 case GL_TEXTURE_2D: 1526 return GL_TRUE; 1527 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1528 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1529 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1530 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1531 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1532 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1533 return ctx->Extensions.ARB_texture_cube_map; 1534 case GL_TEXTURE_RECTANGLE_NV: 1535 return _mesa_is_desktop_gl(ctx) 1536 && ctx->Extensions.NV_texture_rectangle; 1537 case GL_TEXTURE_1D_ARRAY_EXT: 1538 return _mesa_is_desktop_gl(ctx) 1539 && (ctx->Extensions.MESA_texture_array || 1540 ctx->Extensions.EXT_texture_array); 1541 default: 1542 return GL_FALSE; 1543 } 1544 case 3: 1545 switch (target) { 1546 case GL_TEXTURE_3D: 1547 return GL_TRUE; 1548 case GL_TEXTURE_2D_ARRAY_EXT: 1549 return (_mesa_is_desktop_gl(ctx) 1550 && (ctx->Extensions.MESA_texture_array || 1551 ctx->Extensions.EXT_texture_array)) 1552 || _mesa_is_gles3(ctx); 1553 default: 1554 return GL_FALSE; 1555 } 1556 default: 1557 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1558 dims); 1559 return GL_FALSE; 1560 } 1561} 1562 1563 1564/** 1565 * Helper function to determine if a texture object is mutable (in terms 1566 * of GL_ARB_texture_storage). 1567 */ 1568static GLboolean 1569mutable_tex_object(struct gl_context *ctx, GLenum target) 1570{ 1571 if (ctx->Extensions.ARB_texture_storage) { 1572 struct gl_texture_object *texObj = 1573 _mesa_get_current_tex_object(ctx, target); 1574 return !texObj->Immutable; 1575 } 1576 return GL_TRUE; 1577} 1578 1579 1580GLenum 1581_mesa_es_error_check_format_and_type(GLenum format, GLenum type, 1582 unsigned dimensions) 1583{ 1584 bool type_valid = true; 1585 1586 switch (format) { 1587 case GL_ALPHA: 1588 case GL_LUMINANCE: 1589 case GL_LUMINANCE_ALPHA: 1590 type_valid = (type == GL_UNSIGNED_BYTE 1591 || type == GL_FLOAT 1592 || type == GL_HALF_FLOAT_OES); 1593 break; 1594 1595 case GL_RGB: 1596 type_valid = (type == GL_UNSIGNED_BYTE 1597 || type == GL_UNSIGNED_SHORT_5_6_5 1598 || type == GL_FLOAT 1599 || type == GL_HALF_FLOAT_OES); 1600 break; 1601 1602 case GL_RGBA: 1603 type_valid = (type == GL_UNSIGNED_BYTE 1604 || type == GL_UNSIGNED_SHORT_4_4_4_4 1605 || type == GL_UNSIGNED_SHORT_5_5_5_1 1606 || type == GL_FLOAT 1607 || type == GL_HALF_FLOAT_OES 1608 || type == GL_UNSIGNED_INT_2_10_10_10_REV); 1609 break; 1610 1611 case GL_DEPTH_COMPONENT: 1612 /* This format is filtered against invalid dimensionalities elsewhere. 1613 */ 1614 type_valid = (type == GL_UNSIGNED_SHORT 1615 || type == GL_UNSIGNED_INT); 1616 break; 1617 1618 case GL_DEPTH_STENCIL: 1619 /* This format is filtered against invalid dimensionalities elsewhere. 1620 */ 1621 type_valid = (type == GL_UNSIGNED_INT_24_8); 1622 break; 1623 1624 case GL_BGRA_EXT: 1625 type_valid = (type == GL_UNSIGNED_BYTE); 1626 1627 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but 1628 * the format does not appear to be allowed for 3D textures in OpenGL 1629 * ES. 1630 */ 1631 if (dimensions != 2) 1632 return GL_INVALID_VALUE; 1633 1634 break; 1635 1636 default: 1637 return GL_INVALID_VALUE; 1638 } 1639 1640 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION; 1641} 1642 1643 1644 1645/** 1646 * Return expected size of a compressed texture. 1647 */ 1648static GLuint 1649compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 1650 GLenum glformat) 1651{ 1652 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 1653 return _mesa_format_image_size(mesaFormat, width, height, depth); 1654} 1655 1656 1657/* 1658 * Return compressed texture block size, in pixels. 1659 */ 1660static void 1661get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 1662{ 1663 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 1664 _mesa_get_format_block_size(mesaFormat, bw, bh); 1665} 1666 1667 1668/** 1669 * Special value returned by error some texture error checking functions when 1670 * an error is detected and the proxy texture image's width/height/depth/format 1671 * fields should be zeroed-out. 1672 */ 1673#define PROXY_ERROR 2 1674 1675 1676/** 1677 * Test the glTexImage[123]D() parameters for errors. 1678 * 1679 * \param ctx GL context. 1680 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1681 * \param target texture target given by the user. 1682 * \param level image level given by the user. 1683 * \param internalFormat internal format given by the user. 1684 * \param format pixel data format given by the user. 1685 * \param type pixel data type given by the user. 1686 * \param width image width given by the user. 1687 * \param height image height given by the user. 1688 * \param depth image depth given by the user. 1689 * \param border image border given by the user. 1690 * 1691 * \return PROXY_ERROR if there's an error that should zero-out the proxy image, 1692 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error, 1693 * 1694 * Verifies each of the parameters against the constants specified in 1695 * __struct gl_contextRec::Const and the supported extensions, and according 1696 * to the OpenGL specification. 1697 */ 1698static GLenum 1699texture_error_check( struct gl_context *ctx, 1700 GLuint dimensions, GLenum target, 1701 GLint level, GLint internalFormat, 1702 GLenum format, GLenum type, 1703 GLint width, GLint height, 1704 GLint depth, GLint border ) 1705{ 1706 const GLenum proxyTarget = _mesa_get_proxy_target(target); 1707 const GLboolean isProxy = target == proxyTarget; 1708 GLboolean sizeOK = GL_TRUE; 1709 GLboolean colorFormat; 1710 GLenum err; 1711 1712 /* Even though there are no color-index textures, we still have to support 1713 * uploading color-index data and remapping it to RGB via the 1714 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1715 */ 1716 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1717 1718 /* Note: for proxy textures, some error conditions immediately generate 1719 * a GL error in the usual way. But others do not generate a GL error. 1720 * Instead, they cause the width, height, depth, format fields of the 1721 * texture image to be zeroed-out. The GL spec seems to indicate that the 1722 * zero-out behaviour is only used in cases related to memory allocation. 1723 */ 1724 1725 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1726 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1727 _mesa_error(ctx, GL_INVALID_VALUE, 1728 "glTexImage%dD(level=%d)", dimensions, level); 1729 return GL_TRUE; 1730 } 1731 1732 /* Check border */ 1733 if (border < 0 || border > 1 || 1734 ((ctx->API != API_OPENGL || 1735 target == GL_TEXTURE_RECTANGLE_NV || 1736 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1737 _mesa_error(ctx, GL_INVALID_VALUE, 1738 "glTexImage%dD(border=%d)", dimensions, border); 1739 return GL_TRUE; 1740 } 1741 1742 if (width < 0 || height < 0 || depth < 0) { 1743 _mesa_error(ctx, GL_INVALID_VALUE, 1744 "glTexImage%dD(width, height or depth < 0)", dimensions); 1745 return GL_TRUE; 1746 } 1747 1748 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 1749 * combinations of format, internalFormat, and type that can be used. 1750 * Formats and types that require additional extensions (e.g., GL_FLOAT 1751 * requires GL_OES_texture_float) are filtered elsewhere. 1752 */ 1753 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 1754 if (format != internalFormat) { 1755 _mesa_error(ctx, GL_INVALID_OPERATION, 1756 "glTexImage%dD(format = %s, internalFormat = %s)", 1757 dimensions, 1758 _mesa_lookup_enum_by_nr(format), 1759 _mesa_lookup_enum_by_nr(internalFormat)); 1760 return GL_TRUE; 1761 } 1762 1763 err = _mesa_es_error_check_format_and_type(format, type, dimensions); 1764 if (err != GL_NO_ERROR) { 1765 _mesa_error(ctx, err, 1766 "glTexImage%dD(format = %s, type = %s)", 1767 dimensions, 1768 _mesa_lookup_enum_by_nr(format), 1769 _mesa_lookup_enum_by_nr(type)); 1770 return GL_TRUE; 1771 } 1772 } 1773 1774 /* Do this simple check before calling the TestProxyTexImage() function */ 1775 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1776 sizeOK = (width == height); 1777 } 1778 1779 /* 1780 * Use the proxy texture driver hook to see if the size/level/etc are 1781 * legal. 1782 */ 1783 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1784 internalFormat, format, 1785 type, width, height, 1786 depth, border); 1787 if (!sizeOK) { 1788 if (isProxy) { 1789 /* No GL error is recorded, but we need to zero-out the image dims */ 1790 return PROXY_ERROR; 1791 } 1792 else { 1793 _mesa_error(ctx, GL_INVALID_VALUE, 1794 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1795 dimensions, level, width, height, depth); 1796 return GL_TRUE; 1797 } 1798 } 1799 1800 /* Check internalFormat */ 1801 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1802 _mesa_error(ctx, GL_INVALID_VALUE, 1803 "glTexImage%dD(internalFormat=%s)", 1804 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1805 return GL_TRUE; 1806 } 1807 1808 /* Check incoming image format and type */ 1809 err = _mesa_error_check_format_and_type(ctx, format, type); 1810 if (err != GL_NO_ERROR) { 1811 _mesa_error(ctx, err, 1812 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1813 dimensions, format, type); 1814 return GL_TRUE; 1815 } 1816 1817 /* make sure internal format and format basically agree */ 1818 colorFormat = _mesa_is_color_format(format); 1819 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1820 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1821 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1822 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1823 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1824 _mesa_error(ctx, GL_INVALID_OPERATION, 1825 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1826 dimensions, internalFormat, format); 1827 return GL_TRUE; 1828 } 1829 1830 /* additional checks for ycbcr textures */ 1831 if (internalFormat == GL_YCBCR_MESA) { 1832 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1833 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1834 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1835 char message[100]; 1836 _mesa_snprintf(message, sizeof(message), 1837 "glTexImage%dD(format/type YCBCR mismatch)", 1838 dimensions); 1839 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1840 return GL_TRUE; /* error */ 1841 } 1842 if (target != GL_TEXTURE_2D && 1843 target != GL_PROXY_TEXTURE_2D && 1844 target != GL_TEXTURE_RECTANGLE_NV && 1845 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1846 _mesa_error(ctx, GL_INVALID_ENUM, 1847 "glTexImage%dD(bad target for YCbCr texture)", 1848 dimensions); 1849 return GL_TRUE; 1850 } 1851 if (border != 0) { 1852 char message[100]; 1853 _mesa_snprintf(message, sizeof(message), 1854 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1855 dimensions, border); 1856 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1857 return GL_TRUE; 1858 } 1859 } 1860 1861 /* additional checks for depth textures */ 1862 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1863 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1864 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1865 if (target != GL_TEXTURE_1D && 1866 target != GL_PROXY_TEXTURE_1D && 1867 target != GL_TEXTURE_2D && 1868 target != GL_PROXY_TEXTURE_2D && 1869 target != GL_TEXTURE_1D_ARRAY && 1870 target != GL_PROXY_TEXTURE_1D_ARRAY && 1871 target != GL_TEXTURE_2D_ARRAY && 1872 target != GL_PROXY_TEXTURE_2D_ARRAY && 1873 target != GL_TEXTURE_RECTANGLE_ARB && 1874 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1875 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1876 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1877 _mesa_error(ctx, GL_INVALID_ENUM, 1878 "glTexImage%dD(bad target for depth texture)", 1879 dimensions); 1880 return GL_TRUE; 1881 } 1882 } 1883 1884 /* additional checks for compressed textures */ 1885 if (_mesa_is_compressed_format(ctx, internalFormat)) { 1886 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1887 _mesa_error(ctx, GL_INVALID_ENUM, 1888 "glTexImage%dD(target can't be compressed)", dimensions); 1889 return GL_TRUE; 1890 } 1891 if (compressedteximage_only_format(ctx, internalFormat)) { 1892 _mesa_error(ctx, GL_INVALID_OPERATION, 1893 "glTexImage%dD(no compression for format)", dimensions); 1894 return GL_TRUE; 1895 } 1896 if (border != 0) { 1897 _mesa_error(ctx, GL_INVALID_OPERATION, 1898 "glTexImage%dD(border!=0)", dimensions); 1899 return GL_TRUE; 1900 } 1901 } 1902 1903 /* additional checks for integer textures */ 1904 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1905 (_mesa_is_enum_format_integer(format) != 1906 _mesa_is_enum_format_integer(internalFormat))) { 1907 _mesa_error(ctx, GL_INVALID_OPERATION, 1908 "glTexImage%dD(integer/non-integer format mismatch)", 1909 dimensions); 1910 return GL_TRUE; 1911 } 1912 1913 if (!mutable_tex_object(ctx, target)) { 1914 _mesa_error(ctx, GL_INVALID_OPERATION, 1915 "glTexImage%dD(immutable texture)", dimensions); 1916 return GL_TRUE; 1917 } 1918 1919 /* if we get here, the parameters are OK */ 1920 return GL_FALSE; 1921} 1922 1923 1924/** 1925 * Error checking for glCompressedTexImage[123]D(). 1926 * \param reason returns reason for error, if any 1927 * \return error code or GL_NO_ERROR or PROXY_ERROR. 1928 */ 1929static GLenum 1930compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 1931 GLenum target, GLint level, 1932 GLenum internalFormat, GLsizei width, 1933 GLsizei height, GLsizei depth, GLint border, 1934 GLsizei imageSize) 1935{ 1936 const GLenum proxyTarget = _mesa_get_proxy_target(target); 1937 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 1938 GLint expectedSize; 1939 GLenum choose_format; 1940 GLenum choose_type; 1941 GLenum proxy_format; 1942 GLenum error = GL_NO_ERROR; 1943 char *reason = ""; /* no error */ 1944 1945 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1946 reason = "target"; 1947 error = GL_INVALID_ENUM; 1948 goto error; 1949 } 1950 1951 /* This will detect any invalid internalFormat value */ 1952 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 1953 reason = "internalFormat"; 1954 error = GL_INVALID_ENUM; 1955 goto error; 1956 } 1957 1958 switch (internalFormat) { 1959#if FEATURE_ES 1960 case GL_PALETTE4_RGB8_OES: 1961 case GL_PALETTE4_RGBA8_OES: 1962 case GL_PALETTE4_R5_G6_B5_OES: 1963 case GL_PALETTE4_RGBA4_OES: 1964 case GL_PALETTE4_RGB5_A1_OES: 1965 case GL_PALETTE8_RGB8_OES: 1966 case GL_PALETTE8_RGBA8_OES: 1967 case GL_PALETTE8_R5_G6_B5_OES: 1968 case GL_PALETTE8_RGBA4_OES: 1969 case GL_PALETTE8_RGB5_A1_OES: 1970 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 1971 &choose_type); 1972 proxy_format = choose_format; 1973 1974 /* check level (note that level should be zero or less!) */ 1975 if (level > 0 || level < -maxLevels) { 1976 reason = "level"; 1977 error = GL_INVALID_VALUE; 1978 goto error; 1979 } 1980 1981 if (dimensions != 2) { 1982 reason = "compressed paletted textures must be 2D"; 1983 error = GL_INVALID_OPERATION; 1984 goto error; 1985 } 1986 1987 /* Figure out the expected texture size (in bytes). This will be 1988 * checked against the actual size later. 1989 */ 1990 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 1991 width, height); 1992 1993 /* This is for the benefit of the TestProxyTexImage below. It expects 1994 * level to be non-negative. OES_compressed_paletted_texture uses a 1995 * weird mechanism where the level specified to glCompressedTexImage2D 1996 * is -(n-1) number of levels in the texture, and the data specifies the 1997 * complete mipmap stack. This is done to ensure the palette is the 1998 * same for all levels. 1999 */ 2000 level = -level; 2001 break; 2002#endif 2003 2004 default: 2005 choose_format = GL_NONE; 2006 choose_type = GL_NONE; 2007 proxy_format = internalFormat; 2008 2009 /* check level */ 2010 if (level < 0 || level >= maxLevels) { 2011 reason = "level"; 2012 error = GL_INVALID_VALUE; 2013 goto error; 2014 } 2015 2016 /* Figure out the expected texture size (in bytes). This will be 2017 * checked against the actual size later. 2018 */ 2019 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 2020 break; 2021 } 2022 2023 /* This should really never fail */ 2024 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 2025 reason = "internalFormat"; 2026 error = GL_INVALID_ENUM; 2027 goto error; 2028 } 2029 2030 /* No compressed formats support borders at this time */ 2031 if (border != 0) { 2032 reason = "border != 0"; 2033 error = GL_INVALID_VALUE; 2034 goto error; 2035 } 2036 2037 /* For cube map, width must equal height */ 2038 if (_mesa_is_cube_face(target) && width != height) { 2039 reason = "width != height"; 2040 error = GL_INVALID_VALUE; 2041 goto error; 2042 } 2043 2044 /* check image sizes */ 2045 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2046 proxy_format, choose_format, 2047 choose_type, 2048 width, height, depth, border)) { 2049 /* See error comment above */ 2050 if (target == proxyTarget) { 2051 return PROXY_ERROR; 2052 } 2053 reason = "invalid width, height or format"; 2054 error = GL_INVALID_OPERATION; 2055 goto error; 2056 } 2057 2058 /* check image size in bytes */ 2059 if (expectedSize != imageSize) { 2060 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 2061 * if <imageSize> is not consistent with the format, dimensions, and 2062 * contents of the specified image. 2063 */ 2064 reason = "imageSize inconsistant with width/height/format"; 2065 error = GL_INVALID_VALUE; 2066 goto error; 2067 } 2068 2069 if (!mutable_tex_object(ctx, target)) { 2070 reason = "immutable texture"; 2071 error = GL_INVALID_OPERATION; 2072 goto error; 2073 } 2074 2075 return GL_NO_ERROR; 2076 2077error: 2078 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason); 2079 return error; 2080} 2081 2082 2083 2084/** 2085 * Test glTexSubImage[123]D() parameters for errors. 2086 * 2087 * \param ctx GL context. 2088 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2089 * \param target texture target given by the user. 2090 * \param level image level given by the user. 2091 * \param xoffset sub-image x offset given by the user. 2092 * \param yoffset sub-image y offset given by the user. 2093 * \param zoffset sub-image z offset given by the user. 2094 * \param format pixel data format given by the user. 2095 * \param type pixel data type given by the user. 2096 * \param width image width given by the user. 2097 * \param height image height given by the user. 2098 * \param depth image depth given by the user. 2099 * 2100 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2101 * 2102 * Verifies each of the parameters against the constants specified in 2103 * __struct gl_contextRec::Const and the supported extensions, and according 2104 * to the OpenGL specification. 2105 */ 2106static GLboolean 2107subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 2108 GLenum target, GLint level, 2109 GLint xoffset, GLint yoffset, GLint zoffset, 2110 GLint width, GLint height, GLint depth, 2111 GLenum format, GLenum type ) 2112{ 2113 GLenum err; 2114 2115 /* Basic level check */ 2116 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2117 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 2118 return GL_TRUE; 2119 } 2120 2121 /* Check for negative sizes */ 2122 if (width < 0) { 2123 _mesa_error(ctx, GL_INVALID_VALUE, 2124 "glTexSubImage%dD(width=%d)", dimensions, width); 2125 return GL_TRUE; 2126 } 2127 if (height < 0 && dimensions > 1) { 2128 _mesa_error(ctx, GL_INVALID_VALUE, 2129 "glTexSubImage%dD(height=%d)", dimensions, height); 2130 return GL_TRUE; 2131 } 2132 if (depth < 0 && dimensions > 2) { 2133 _mesa_error(ctx, GL_INVALID_VALUE, 2134 "glTexSubImage%dD(depth=%d)", dimensions, depth); 2135 return GL_TRUE; 2136 } 2137 2138 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 2139 * combinations of format and type that can be used. Formats and types 2140 * that require additional extensions (e.g., GL_FLOAT requires 2141 * GL_OES_texture_float) are filtered elsewhere. 2142 */ 2143 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 2144 err = _mesa_es_error_check_format_and_type(format, type, dimensions); 2145 if (err != GL_NO_ERROR) { 2146 _mesa_error(ctx, err, 2147 "glTexSubImage%dD(format = %s, type = %s)", 2148 dimensions, 2149 _mesa_lookup_enum_by_nr(format), 2150 _mesa_lookup_enum_by_nr(type)); 2151 return GL_TRUE; 2152 } 2153 } 2154 2155 err = _mesa_error_check_format_and_type(ctx, format, type); 2156 if (err != GL_NO_ERROR) { 2157 _mesa_error(ctx, err, 2158 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 2159 dimensions, format, type); 2160 return GL_TRUE; 2161 } 2162 2163 return GL_FALSE; 2164} 2165 2166 2167/** 2168 * Do second part of glTexSubImage which depends on the destination texture. 2169 * \return GL_TRUE if error recorded, GL_FALSE otherwise 2170 */ 2171static GLboolean 2172subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 2173 GLenum target, GLint level, 2174 GLint xoffset, GLint yoffset, GLint zoffset, 2175 GLint width, GLint height, GLint depth, 2176 GLenum format, GLenum type, 2177 const struct gl_texture_image *destTex ) 2178{ 2179 if (!destTex) { 2180 /* undefined image level */ 2181 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 2182 return GL_TRUE; 2183 } 2184 2185 if (xoffset < -((GLint)destTex->Border)) { 2186 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 2187 dimensions); 2188 return GL_TRUE; 2189 } 2190 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 2191 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 2192 dimensions); 2193 return GL_TRUE; 2194 } 2195 if (dimensions > 1) { 2196 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 2197 if (yoffset < -yBorder) { 2198 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 2199 dimensions); 2200 return GL_TRUE; 2201 } 2202 if (yoffset + height > (GLint) destTex->Height + yBorder) { 2203 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 2204 dimensions); 2205 return GL_TRUE; 2206 } 2207 } 2208 if (dimensions > 2) { 2209 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 2210 if (zoffset < -zBorder) { 2211 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 2212 return GL_TRUE; 2213 } 2214 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 2215 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 2216 return GL_TRUE; 2217 } 2218 } 2219 2220 if (_mesa_is_format_compressed(destTex->TexFormat)) { 2221 GLuint bw, bh; 2222 2223 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 2224 _mesa_error(ctx, GL_INVALID_OPERATION, 2225 "glTexSubImage%dD(no compression for format)", dimensions); 2226 return GL_TRUE; 2227 } 2228 2229 /* do tests which depend on compression block size */ 2230 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 2231 2232 /* offset must be multiple of block size */ 2233 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 2234 _mesa_error(ctx, GL_INVALID_OPERATION, 2235 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 2236 dimensions, xoffset, yoffset); 2237 return GL_TRUE; 2238 } 2239 /* size must be multiple of bw by bh or equal to whole texture size */ 2240 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 2241 _mesa_error(ctx, GL_INVALID_OPERATION, 2242 "glTexSubImage%dD(width = %d)", dimensions, width); 2243 return GL_TRUE; 2244 } 2245 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 2246 _mesa_error(ctx, GL_INVALID_OPERATION, 2247 "glTexSubImage%dD(height = %d)", dimensions, height); 2248 return GL_TRUE; 2249 } 2250 } 2251 2252 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 2253 /* both source and dest must be integer-valued, or neither */ 2254 if (_mesa_is_format_integer_color(destTex->TexFormat) != 2255 _mesa_is_enum_format_integer(format)) { 2256 _mesa_error(ctx, GL_INVALID_OPERATION, 2257 "glTexSubImage%dD(integer/non-integer format mismatch)", 2258 dimensions); 2259 return GL_TRUE; 2260 } 2261 } 2262 2263 return GL_FALSE; 2264} 2265 2266 2267/** 2268 * Test glCopyTexImage[12]D() parameters for errors. 2269 * 2270 * \param ctx GL context. 2271 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2272 * \param target texture target given by the user. 2273 * \param level image level given by the user. 2274 * \param internalFormat internal format given by the user. 2275 * \param width image width given by the user. 2276 * \param height image height given by the user. 2277 * \param border texture border. 2278 * 2279 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2280 * 2281 * Verifies each of the parameters against the constants specified in 2282 * __struct gl_contextRec::Const and the supported extensions, and according 2283 * to the OpenGL specification. 2284 */ 2285static GLboolean 2286copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 2287 GLenum target, GLint level, GLint internalFormat, 2288 GLint width, GLint height, GLint border ) 2289{ 2290 const GLenum proxyTarget = _mesa_get_proxy_target(target); 2291 const GLenum type = GL_FLOAT; 2292 GLboolean sizeOK; 2293 GLint baseFormat; 2294 2295 /* check target */ 2296 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2297 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 2298 dimensions, _mesa_lookup_enum_by_nr(target)); 2299 return GL_TRUE; 2300 } 2301 2302 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 2303 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2304 _mesa_error(ctx, GL_INVALID_VALUE, 2305 "glCopyTexImage%dD(level=%d)", dimensions, level); 2306 return GL_TRUE; 2307 } 2308 2309 /* Check that the source buffer is complete */ 2310 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2311 if (ctx->ReadBuffer->_Status == 0) { 2312 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2313 } 2314 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2315 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2316 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2317 return GL_TRUE; 2318 } 2319 2320 if (ctx->ReadBuffer->Visual.samples > 0) { 2321 _mesa_error(ctx, GL_INVALID_OPERATION, 2322 "glCopyTexImage%dD(multisample FBO)", 2323 dimensions); 2324 return GL_TRUE; 2325 } 2326 } 2327 2328 /* Check border */ 2329 if (border < 0 || border > 1 || 2330 ((ctx->API != API_OPENGL || 2331 target == GL_TEXTURE_RECTANGLE_NV || 2332 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2333 _mesa_error(ctx, GL_INVALID_VALUE, 2334 "glCopyTexImage%dD(border=%d)", dimensions, border); 2335 return GL_TRUE; 2336 } 2337 2338 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 2339 * internalFormat. 2340 */ 2341 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 2342 switch (internalFormat) { 2343 case GL_ALPHA: 2344 case GL_RGB: 2345 case GL_RGBA: 2346 case GL_LUMINANCE: 2347 case GL_LUMINANCE_ALPHA: 2348 break; 2349 default: 2350 _mesa_error(ctx, GL_INVALID_VALUE, 2351 "glCopyTexImage%dD(internalFormat)", dimensions); 2352 return GL_TRUE; 2353 } 2354 } 2355 2356 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2357 if (baseFormat < 0) { 2358 _mesa_error(ctx, GL_INVALID_VALUE, 2359 "glCopyTexImage%dD(internalFormat)", dimensions); 2360 return GL_TRUE; 2361 } 2362 2363 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2364 _mesa_error(ctx, GL_INVALID_OPERATION, 2365 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2366 return GL_TRUE; 2367 } 2368 2369 /* From the EXT_texture_integer spec: 2370 * 2371 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2372 * if the texture internalformat is an integer format and the read color 2373 * buffer is not an integer format, or if the internalformat is not an 2374 * integer format and the read color buffer is an integer format." 2375 */ 2376 if (_mesa_is_color_format(internalFormat)) { 2377 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2378 2379 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2380 _mesa_is_enum_format_integer(internalFormat)) { 2381 _mesa_error(ctx, GL_INVALID_OPERATION, 2382 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2383 return GL_TRUE; 2384 } 2385 } 2386 2387 /* Do size, level checking */ 2388 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2389 ? (width == height) : 1; 2390 2391 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2392 internalFormat, baseFormat, 2393 type, width, height, 2394 1, border); 2395 2396 if (!sizeOK) { 2397 if (dimensions == 1) { 2398 _mesa_error(ctx, GL_INVALID_VALUE, 2399 "glCopyTexImage1D(width=%d)", width); 2400 } 2401 else { 2402 ASSERT(dimensions == 2); 2403 _mesa_error(ctx, GL_INVALID_VALUE, 2404 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2405 } 2406 return GL_TRUE; 2407 } 2408 2409 if (_mesa_is_compressed_format(ctx, internalFormat)) { 2410 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2411 _mesa_error(ctx, GL_INVALID_ENUM, 2412 "glCopyTexImage%dD(target)", dimensions); 2413 return GL_TRUE; 2414 } 2415 if (compressedteximage_only_format(ctx, internalFormat)) { 2416 _mesa_error(ctx, GL_INVALID_OPERATION, 2417 "glCopyTexImage%dD(no compression for format)", dimensions); 2418 return GL_TRUE; 2419 } 2420 if (border != 0) { 2421 _mesa_error(ctx, GL_INVALID_OPERATION, 2422 "glCopyTexImage%dD(border!=0)", dimensions); 2423 return GL_TRUE; 2424 } 2425 } 2426 2427 if (!mutable_tex_object(ctx, target)) { 2428 _mesa_error(ctx, GL_INVALID_OPERATION, 2429 "glCopyTexImage%dD(immutable texture)", dimensions); 2430 return GL_TRUE; 2431 } 2432 2433 /* if we get here, the parameters are OK */ 2434 return GL_FALSE; 2435} 2436 2437 2438/** 2439 * Test glCopyTexSubImage[12]D() parameters for errors. 2440 * Note that this is the first part of error checking. 2441 * See also copytexsubimage_error_check2() below for the second part. 2442 * 2443 * \param ctx GL context. 2444 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2445 * \param target texture target given by the user. 2446 * \param level image level given by the user. 2447 * 2448 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2449 */ 2450static GLboolean 2451copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2452 GLenum target, GLint level) 2453{ 2454 /* Check that the source buffer is complete */ 2455 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2456 if (ctx->ReadBuffer->_Status == 0) { 2457 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2458 } 2459 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2460 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2461 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2462 return GL_TRUE; 2463 } 2464 2465 if (ctx->ReadBuffer->Visual.samples > 0) { 2466 _mesa_error(ctx, GL_INVALID_OPERATION, 2467 "glCopyTexSubImage%dD(multisample FBO)", 2468 dimensions); 2469 return GL_TRUE; 2470 } 2471 } 2472 2473 /* check target (proxies not allowed) */ 2474 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2475 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2476 dimensions, _mesa_lookup_enum_by_nr(target)); 2477 return GL_TRUE; 2478 } 2479 2480 /* Check level */ 2481 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2482 _mesa_error(ctx, GL_INVALID_VALUE, 2483 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2484 return GL_TRUE; 2485 } 2486 2487 return GL_FALSE; 2488} 2489 2490 2491/** 2492 * Second part of error checking for glCopyTexSubImage[12]D(). 2493 * \param xoffset sub-image x offset given by the user. 2494 * \param yoffset sub-image y offset given by the user. 2495 * \param zoffset sub-image z offset given by the user. 2496 * \param width image width given by the user. 2497 * \param height image height given by the user. 2498 */ 2499static GLboolean 2500copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2501 GLenum target, GLint level, 2502 GLint xoffset, GLint yoffset, GLint zoffset, 2503 GLsizei width, GLsizei height, 2504 const struct gl_texture_image *teximage ) 2505{ 2506 /* check that dest tex image exists */ 2507 if (!teximage) { 2508 _mesa_error(ctx, GL_INVALID_OPERATION, 2509 "glCopyTexSubImage%dD(undefined texture level: %d)", 2510 dimensions, level); 2511 return GL_TRUE; 2512 } 2513 2514 /* Check size */ 2515 if (width < 0) { 2516 _mesa_error(ctx, GL_INVALID_VALUE, 2517 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2518 return GL_TRUE; 2519 } 2520 if (dimensions > 1 && height < 0) { 2521 _mesa_error(ctx, GL_INVALID_VALUE, 2522 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2523 return GL_TRUE; 2524 } 2525 2526 /* check x/y offsets */ 2527 if (xoffset < -((GLint)teximage->Border)) { 2528 _mesa_error(ctx, GL_INVALID_VALUE, 2529 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2530 return GL_TRUE; 2531 } 2532 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2533 _mesa_error(ctx, GL_INVALID_VALUE, 2534 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2535 return GL_TRUE; 2536 } 2537 if (dimensions > 1) { 2538 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2539 if (yoffset < -yBorder) { 2540 _mesa_error(ctx, GL_INVALID_VALUE, 2541 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2542 return GL_TRUE; 2543 } 2544 /* NOTE: we're adding the border here, not subtracting! */ 2545 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2546 _mesa_error(ctx, GL_INVALID_VALUE, 2547 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2548 return GL_TRUE; 2549 } 2550 } 2551 2552 /* check z offset */ 2553 if (dimensions > 2) { 2554 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2555 if (zoffset < -zBorder) { 2556 _mesa_error(ctx, GL_INVALID_VALUE, 2557 "glCopyTexSubImage%dD(zoffset)", dimensions); 2558 return GL_TRUE; 2559 } 2560 if (zoffset > (GLint) teximage->Depth + zBorder) { 2561 _mesa_error(ctx, GL_INVALID_VALUE, 2562 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2563 return GL_TRUE; 2564 } 2565 } 2566 2567 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2568 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2569 _mesa_error(ctx, GL_INVALID_OPERATION, 2570 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2571 return GL_TRUE; 2572 } 2573 /* offset must be multiple of 4 */ 2574 if ((xoffset & 3) || (yoffset & 3)) { 2575 _mesa_error(ctx, GL_INVALID_VALUE, 2576 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2577 return GL_TRUE; 2578 } 2579 /* size must be multiple of 4 */ 2580 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2581 _mesa_error(ctx, GL_INVALID_VALUE, 2582 "glCopyTexSubImage%dD(width)", dimensions); 2583 return GL_TRUE; 2584 } 2585 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2586 _mesa_error(ctx, GL_INVALID_VALUE, 2587 "glCopyTexSubImage%dD(height)", dimensions); 2588 return GL_TRUE; 2589 } 2590 } 2591 2592 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2593 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2594 return GL_TRUE; 2595 } 2596 2597 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2598 _mesa_error(ctx, GL_INVALID_OPERATION, 2599 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2600 dimensions, teximage->_BaseFormat); 2601 return GL_TRUE; 2602 } 2603 2604 /* From the EXT_texture_integer spec: 2605 * 2606 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2607 * if the texture internalformat is an integer format and the read color 2608 * buffer is not an integer format, or if the internalformat is not an 2609 * integer format and the read color buffer is an integer format." 2610 */ 2611 if (_mesa_is_color_format(teximage->InternalFormat)) { 2612 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2613 2614 if (_mesa_is_format_integer_color(rb->Format) != 2615 _mesa_is_format_integer_color(teximage->TexFormat)) { 2616 _mesa_error(ctx, GL_INVALID_OPERATION, 2617 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2618 return GL_TRUE; 2619 } 2620 } 2621 2622 /* if we get here, the parameters are OK */ 2623 return GL_FALSE; 2624} 2625 2626 2627/** Callback info for walking over FBO hash table */ 2628struct cb_info 2629{ 2630 struct gl_context *ctx; 2631 struct gl_texture_object *texObj; 2632 GLuint level, face; 2633}; 2634 2635 2636/** 2637 * Check render to texture callback. Called from _mesa_HashWalk(). 2638 */ 2639static void 2640check_rtt_cb(GLuint key, void *data, void *userData) 2641{ 2642 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2643 const struct cb_info *info = (struct cb_info *) userData; 2644 struct gl_context *ctx = info->ctx; 2645 const struct gl_texture_object *texObj = info->texObj; 2646 const GLuint level = info->level, face = info->face; 2647 2648 /* If this is a user-created FBO */ 2649 if (_mesa_is_user_fbo(fb)) { 2650 GLuint i; 2651 /* check if any of the FBO's attachments point to 'texObj' */ 2652 for (i = 0; i < BUFFER_COUNT; i++) { 2653 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2654 if (att->Type == GL_TEXTURE && 2655 att->Texture == texObj && 2656 att->TextureLevel == level && 2657 att->CubeMapFace == face) { 2658 ASSERT(_mesa_get_attachment_teximage(att)); 2659 /* Tell driver about the new renderbuffer texture */ 2660 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2661 /* Mark fb status as indeterminate to force re-validation */ 2662 fb->_Status = 0; 2663 } 2664 } 2665 } 2666} 2667 2668 2669/** 2670 * When a texture image is specified we have to check if it's bound to 2671 * any framebuffer objects (render to texture) in order to detect changes 2672 * in size or format since that effects FBO completeness. 2673 * Any FBOs rendering into the texture must be re-validated. 2674 */ 2675void 2676_mesa_update_fbo_texture(struct gl_context *ctx, 2677 struct gl_texture_object *texObj, 2678 GLuint face, GLuint level) 2679{ 2680 /* Only check this texture if it's been marked as RenderToTexture */ 2681 if (texObj->_RenderToTexture) { 2682 struct cb_info info; 2683 info.ctx = ctx; 2684 info.texObj = texObj; 2685 info.level = level; 2686 info.face = face; 2687 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2688 } 2689} 2690 2691 2692/** 2693 * If the texture object's GenerateMipmap flag is set and we've 2694 * changed the texture base level image, regenerate the rest of the 2695 * mipmap levels now. 2696 */ 2697static inline void 2698check_gen_mipmap(struct gl_context *ctx, GLenum target, 2699 struct gl_texture_object *texObj, GLint level) 2700{ 2701 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2702 if (texObj->GenerateMipmap && 2703 level == texObj->BaseLevel && 2704 level < texObj->MaxLevel) { 2705 ASSERT(ctx->Driver.GenerateMipmap); 2706 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2707 } 2708} 2709 2710 2711/** Debug helper: override the user-requested internal format */ 2712static GLenum 2713override_internal_format(GLenum internalFormat, GLint width, GLint height) 2714{ 2715#if 0 2716 if (internalFormat == GL_RGBA16F_ARB || 2717 internalFormat == GL_RGBA32F_ARB) { 2718 printf("Convert rgba float tex to int %d x %d\n", width, height); 2719 return GL_RGBA; 2720 } 2721 else if (internalFormat == GL_RGB16F_ARB || 2722 internalFormat == GL_RGB32F_ARB) { 2723 printf("Convert rgb float tex to int %d x %d\n", width, height); 2724 return GL_RGB; 2725 } 2726 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2727 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2728 printf("Convert luminance float tex to int %d x %d\n", width, height); 2729 return GL_LUMINANCE_ALPHA; 2730 } 2731 else if (internalFormat == GL_LUMINANCE16F_ARB || 2732 internalFormat == GL_LUMINANCE32F_ARB) { 2733 printf("Convert luminance float tex to int %d x %d\n", width, height); 2734 return GL_LUMINANCE; 2735 } 2736 else if (internalFormat == GL_ALPHA16F_ARB || 2737 internalFormat == GL_ALPHA32F_ARB) { 2738 printf("Convert luminance float tex to int %d x %d\n", width, height); 2739 return GL_ALPHA; 2740 } 2741 /* 2742 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2743 internalFormat = GL_RGBA; 2744 } 2745 */ 2746 else { 2747 return internalFormat; 2748 } 2749#else 2750 return internalFormat; 2751#endif 2752} 2753 2754 2755/** 2756 * Choose the actual hardware format for a texture image. 2757 * Try to use the same format as the previous image level when possible. 2758 * Otherwise, ask the driver for the best format. 2759 * It's important to try to choose a consistant format for all levels 2760 * for efficient texture memory layout/allocation. In particular, this 2761 * comes up during automatic mipmap generation. 2762 */ 2763gl_format 2764_mesa_choose_texture_format(struct gl_context *ctx, 2765 struct gl_texture_object *texObj, 2766 GLenum target, GLint level, 2767 GLenum internalFormat, GLenum format, GLenum type) 2768{ 2769 gl_format f; 2770 2771 /* see if we've already chosen a format for the previous level */ 2772 if (level > 0) { 2773 struct gl_texture_image *prevImage = 2774 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2775 /* See if the prev level is defined and has an internal format which 2776 * matches the new internal format. 2777 */ 2778 if (prevImage && 2779 prevImage->Width > 0 && 2780 prevImage->InternalFormat == internalFormat) { 2781 /* use the same format */ 2782 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2783 return prevImage->TexFormat; 2784 } 2785 } 2786 2787 /* If the application requested compression to an S3TC format but we don't 2788 * have the DTXn library, force a generic compressed format instead. 2789 */ 2790 if (internalFormat != format && format != GL_NONE) { 2791 const GLenum before = internalFormat; 2792 2793 switch (internalFormat) { 2794 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 2795 if (!ctx->Mesa_DXTn) 2796 internalFormat = GL_COMPRESSED_RGB; 2797 break; 2798 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 2799 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 2800 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 2801 if (!ctx->Mesa_DXTn) 2802 internalFormat = GL_COMPRESSED_RGBA; 2803 break; 2804 default: 2805 break; 2806 } 2807 2808 if (before != internalFormat) { 2809 _mesa_warning(ctx, 2810 "DXT compression requested (%s), " 2811 "but libtxc_dxtn library not installed. Using %s " 2812 "instead.", 2813 _mesa_lookup_enum_by_nr(before), 2814 _mesa_lookup_enum_by_nr(internalFormat)); 2815 } 2816 } 2817 2818 /* choose format from scratch */ 2819 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat, 2820 format, type); 2821 ASSERT(f != MESA_FORMAT_NONE); 2822 return f; 2823} 2824 2825/** 2826 * Adjust pixel unpack params and image dimensions to strip off the 2827 * one-pixel texture border. 2828 * 2829 * Gallium and intel don't support texture borders. They've seldem been used 2830 * and seldom been implemented correctly anyway. 2831 * 2832 * \param unpackNew returns the new pixel unpack parameters 2833 */ 2834static void 2835strip_texture_border(GLenum target, 2836 GLint *width, GLint *height, GLint *depth, 2837 const struct gl_pixelstore_attrib *unpack, 2838 struct gl_pixelstore_attrib *unpackNew) 2839{ 2840 assert(width); 2841 assert(height); 2842 assert(depth); 2843 2844 *unpackNew = *unpack; 2845 2846 if (unpackNew->RowLength == 0) 2847 unpackNew->RowLength = *width; 2848 2849 if (unpackNew->ImageHeight == 0) 2850 unpackNew->ImageHeight = *height; 2851 2852 assert(*width >= 3); 2853 unpackNew->SkipPixels++; /* skip the border */ 2854 *width = *width - 2; /* reduce the width by two border pixels */ 2855 2856 /* The min height of a texture with a border is 3 */ 2857 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2858 unpackNew->SkipRows++; /* skip the border */ 2859 *height = *height - 2; /* reduce the height by two border pixels */ 2860 } 2861 2862 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2863 unpackNew->SkipImages++; /* skip the border */ 2864 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2865 } 2866} 2867 2868 2869/** 2870 * Common code to implement all the glTexImage1D/2D/3D functions 2871 * as well as glCompressedTexImage1D/2D/3D. 2872 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls. 2873 * \param format the user's image format (only used if !compressed) 2874 * \param type the user's image type (only used if !compressed) 2875 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls. 2876 */ 2877static void 2878teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims, 2879 GLenum target, GLint level, GLint internalFormat, 2880 GLsizei width, GLsizei height, GLsizei depth, 2881 GLint border, GLenum format, GLenum type, 2882 GLsizei imageSize, const GLvoid *pixels) 2883{ 2884 const char *func = compressed ? "glCompressedTexImage" : "glTexImage"; 2885 GLenum error; 2886 struct gl_pixelstore_attrib unpack_no_border; 2887 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2888 2889 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2890 2891 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) { 2892 if (compressed) 2893 _mesa_debug(ctx, 2894 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n", 2895 dims, 2896 _mesa_lookup_enum_by_nr(target), level, 2897 _mesa_lookup_enum_by_nr(internalFormat), 2898 width, height, depth, border, pixels); 2899 else 2900 _mesa_debug(ctx, 2901 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2902 dims, 2903 _mesa_lookup_enum_by_nr(target), level, 2904 _mesa_lookup_enum_by_nr(internalFormat), 2905 width, height, depth, border, 2906 _mesa_lookup_enum_by_nr(format), 2907 _mesa_lookup_enum_by_nr(type), pixels); 2908 } 2909 2910 internalFormat = override_internal_format(internalFormat, width, height); 2911 2912 /* target error checking */ 2913 if (!legal_teximage_target(ctx, dims, target)) { 2914 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)", 2915 func, dims, _mesa_lookup_enum_by_nr(target)); 2916 return; 2917 } 2918 2919 /* general error checking */ 2920 if (compressed) { 2921 error = compressed_texture_error_check(ctx, dims, target, level, 2922 internalFormat, 2923 width, height, depth, 2924 border, imageSize); 2925 } 2926 else { 2927 error = texture_error_check(ctx, dims, target, level, internalFormat, 2928 format, type, width, height, depth, border); 2929 } 2930 2931#if FEATURE_ES 2932 /* Here we convert a cpal compressed image into a regular glTexImage2D 2933 * call by decompressing the texture. If we really want to support cpal 2934 * textures in any driver this would have to be changed. 2935 */ 2936 if (compressed && !error && dims == 2) { 2937 switch (internalFormat) { 2938 case GL_PALETTE4_RGB8_OES: 2939 case GL_PALETTE4_RGBA8_OES: 2940 case GL_PALETTE4_R5_G6_B5_OES: 2941 case GL_PALETTE4_RGBA4_OES: 2942 case GL_PALETTE4_RGB5_A1_OES: 2943 case GL_PALETTE8_RGB8_OES: 2944 case GL_PALETTE8_RGBA8_OES: 2945 case GL_PALETTE8_R5_G6_B5_OES: 2946 case GL_PALETTE8_RGBA4_OES: 2947 case GL_PALETTE8_RGB5_A1_OES: 2948 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 2949 width, height, imageSize, pixels); 2950 return; 2951 } 2952 } 2953#endif 2954 2955 if (_mesa_is_proxy_texture(target)) { 2956 /* Proxy texture: just clear or set state depending on error checking */ 2957 struct gl_texture_image *texImage = 2958 get_proxy_tex_image(ctx, target, level); 2959 gl_format texFormat = MESA_FORMAT_NONE; 2960 2961 if (!error) { 2962 /* No parameter errors. Choose a texture format and see if we 2963 * can really allocate the texture. 2964 */ 2965 struct gl_texture_object *texObj = 2966 _mesa_get_current_tex_object(ctx, target); 2967 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2968 internalFormat, format, type); 2969 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 2970 error = PROXY_ERROR; 2971 } 2972 } 2973 2974 if (error == PROXY_ERROR) { 2975 /* image too large, etc. Clear all proxy texture image parameters. */ 2976 if (texImage) 2977 clear_teximage_fields(texImage); 2978 } 2979 else if (error == GL_FALSE) { 2980 /* no error: store the teximage parameters */ 2981 if (texImage) 2982 _mesa_init_teximage_fields(ctx, texImage, width, height, depth, 2983 border, internalFormat, texFormat); 2984 } 2985 else { 2986 /* other, regular error (was already recorded) */ 2987 } 2988 } 2989 else { 2990 /* non-proxy target */ 2991 const GLuint face = _mesa_tex_target_to_face(target); 2992 struct gl_texture_object *texObj; 2993 struct gl_texture_image *texImage; 2994 2995 if (error) { 2996 return; /* error was recorded */ 2997 } 2998 2999 /* Allow a hardware driver to just strip out the border, to provide 3000 * reliable but slightly incorrect hardware rendering instead of 3001 * rarely-tested software fallback rendering. 3002 */ 3003 if (border && ctx->Const.StripTextureBorder) { 3004 strip_texture_border(target, &width, &height, &depth, unpack, 3005 &unpack_no_border); 3006 border = 0; 3007 unpack = &unpack_no_border; 3008 } 3009 3010 if (ctx->NewState & _NEW_PIXEL) 3011 _mesa_update_state(ctx); 3012 3013 texObj = _mesa_get_current_tex_object(ctx, target); 3014 3015 _mesa_lock_texture(ctx, texObj); 3016 { 3017 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3018 3019 if (!texImage) { 3020 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims); 3021 } 3022 else { 3023 gl_format texFormat; 3024 3025 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3026 3027 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3028 internalFormat, format, 3029 type); 3030 3031 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3032 _mesa_init_teximage_fields(ctx, texImage, 3033 width, height, depth, 3034 border, internalFormat, texFormat); 3035 3036 /* Give the texture to the driver. <pixels> may be null. */ 3037 if (compressed) { 3038 ctx->Driver.CompressedTexImage(ctx, dims, texImage, 3039 imageSize, pixels); 3040 } 3041 else { 3042 ctx->Driver.TexImage(ctx, dims, texImage, format, 3043 type, pixels, unpack); 3044 } 3045 3046 check_gen_mipmap(ctx, target, texObj, level); 3047 3048 _mesa_update_fbo_texture(ctx, texObj, face, level); 3049 3050 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3051 } 3052 else { 3053 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims); 3054 } 3055 } 3056 } 3057 _mesa_unlock_texture(ctx, texObj); 3058 } 3059} 3060 3061 3062/* 3063 * Called from the API. Note that width includes the border. 3064 */ 3065void GLAPIENTRY 3066_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 3067 GLsizei width, GLint border, GLenum format, 3068 GLenum type, const GLvoid *pixels ) 3069{ 3070 GET_CURRENT_CONTEXT(ctx); 3071 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1, 3072 border, format, type, 0, pixels); 3073} 3074 3075 3076void GLAPIENTRY 3077_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 3078 GLsizei width, GLsizei height, GLint border, 3079 GLenum format, GLenum type, 3080 const GLvoid *pixels ) 3081{ 3082 GET_CURRENT_CONTEXT(ctx); 3083 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1, 3084 border, format, type, 0, pixels); 3085} 3086 3087 3088/* 3089 * Called by the API or display list executor. 3090 * Note that width and height include the border. 3091 */ 3092void GLAPIENTRY 3093_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 3094 GLsizei width, GLsizei height, GLsizei depth, 3095 GLint border, GLenum format, GLenum type, 3096 const GLvoid *pixels ) 3097{ 3098 GET_CURRENT_CONTEXT(ctx); 3099 teximage(ctx, GL_FALSE, 3, target, level, internalFormat, 3100 width, height, depth, 3101 border, format, type, 0, pixels); 3102} 3103 3104 3105void GLAPIENTRY 3106_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 3107 GLsizei width, GLsizei height, GLsizei depth, 3108 GLint border, GLenum format, GLenum type, 3109 const GLvoid *pixels ) 3110{ 3111 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 3112 depth, border, format, type, pixels); 3113} 3114 3115 3116#if FEATURE_OES_EGL_image 3117void GLAPIENTRY 3118_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 3119{ 3120 struct gl_texture_object *texObj; 3121 struct gl_texture_image *texImage; 3122 bool valid_target; 3123 GET_CURRENT_CONTEXT(ctx); 3124 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3125 3126 switch (target) { 3127 case GL_TEXTURE_2D: 3128 valid_target = ctx->Extensions.OES_EGL_image; 3129 break; 3130 case GL_TEXTURE_EXTERNAL_OES: 3131 valid_target = ctx->Extensions.OES_EGL_image_external; 3132 break; 3133 default: 3134 valid_target = false; 3135 break; 3136 } 3137 3138 if (!valid_target) { 3139 _mesa_error(ctx, GL_INVALID_ENUM, 3140 "glEGLImageTargetTexture2D(target=%d)", target); 3141 return; 3142 } 3143 3144 if (ctx->NewState & _NEW_PIXEL) 3145 _mesa_update_state(ctx); 3146 3147 texObj = _mesa_get_current_tex_object(ctx, target); 3148 _mesa_lock_texture(ctx, texObj); 3149 3150 if (texObj->Immutable) { 3151 _mesa_error(ctx, GL_INVALID_OPERATION, 3152 "glEGLImageTargetTexture2D(texture is immutable)"); 3153 _mesa_unlock_texture(ctx, texObj); 3154 return; 3155 } 3156 3157 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 3158 if (!texImage) { 3159 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 3160 } else { 3161 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3162 3163 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 3164 texObj, texImage, image); 3165 3166 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3167 } 3168 _mesa_unlock_texture(ctx, texObj); 3169 3170} 3171#endif 3172 3173 3174 3175/** 3176 * Implement all the glTexSubImage1/2/3D() functions. 3177 */ 3178static void 3179texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3180 GLint xoffset, GLint yoffset, GLint zoffset, 3181 GLsizei width, GLsizei height, GLsizei depth, 3182 GLenum format, GLenum type, const GLvoid *pixels ) 3183{ 3184 struct gl_texture_object *texObj; 3185 struct gl_texture_image *texImage; 3186 3187 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3188 3189 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3190 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 3191 dims, 3192 _mesa_lookup_enum_by_nr(target), level, 3193 xoffset, yoffset, zoffset, width, height, depth, 3194 _mesa_lookup_enum_by_nr(format), 3195 _mesa_lookup_enum_by_nr(type), pixels); 3196 3197 /* check target (proxies not allowed) */ 3198 if (!legal_texsubimage_target(ctx, dims, target)) { 3199 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 3200 dims, _mesa_lookup_enum_by_nr(target)); 3201 return; 3202 } 3203 3204 if (ctx->NewState & _NEW_PIXEL) 3205 _mesa_update_state(ctx); 3206 3207 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 3208 width, height, depth, format, type)) { 3209 return; /* error was detected */ 3210 } 3211 3212 texObj = _mesa_get_current_tex_object(ctx, target); 3213 3214 _mesa_lock_texture(ctx, texObj); 3215 { 3216 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3217 3218 if (subtexture_error_check2(ctx, dims, target, level, 3219 xoffset, yoffset, zoffset, 3220 width, height, depth, 3221 format, type, texImage)) { 3222 /* error was recorded */ 3223 } 3224 else if (width > 0 && height > 0 && depth > 0) { 3225 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3226 switch (dims) { 3227 case 3: 3228 if (target != GL_TEXTURE_2D_ARRAY) 3229 zoffset += texImage->Border; 3230 /* fall-through */ 3231 case 2: 3232 if (target != GL_TEXTURE_1D_ARRAY) 3233 yoffset += texImage->Border; 3234 /* fall-through */ 3235 case 1: 3236 xoffset += texImage->Border; 3237 } 3238 3239 ctx->Driver.TexSubImage(ctx, dims, texImage, 3240 xoffset, yoffset, zoffset, 3241 width, height, depth, 3242 format, type, pixels, &ctx->Unpack); 3243 3244 check_gen_mipmap(ctx, target, texObj, level); 3245 3246 ctx->NewState |= _NEW_TEXTURE; 3247 } 3248 } 3249 _mesa_unlock_texture(ctx, texObj); 3250} 3251 3252 3253void GLAPIENTRY 3254_mesa_TexSubImage1D( GLenum target, GLint level, 3255 GLint xoffset, GLsizei width, 3256 GLenum format, GLenum type, 3257 const GLvoid *pixels ) 3258{ 3259 GET_CURRENT_CONTEXT(ctx); 3260 texsubimage(ctx, 1, target, level, 3261 xoffset, 0, 0, 3262 width, 1, 1, 3263 format, type, pixels); 3264} 3265 3266 3267void GLAPIENTRY 3268_mesa_TexSubImage2D( GLenum target, GLint level, 3269 GLint xoffset, GLint yoffset, 3270 GLsizei width, GLsizei height, 3271 GLenum format, GLenum type, 3272 const GLvoid *pixels ) 3273{ 3274 GET_CURRENT_CONTEXT(ctx); 3275 texsubimage(ctx, 2, target, level, 3276 xoffset, yoffset, 0, 3277 width, height, 1, 3278 format, type, pixels); 3279} 3280 3281 3282 3283void GLAPIENTRY 3284_mesa_TexSubImage3D( GLenum target, GLint level, 3285 GLint xoffset, GLint yoffset, GLint zoffset, 3286 GLsizei width, GLsizei height, GLsizei depth, 3287 GLenum format, GLenum type, 3288 const GLvoid *pixels ) 3289{ 3290 GET_CURRENT_CONTEXT(ctx); 3291 texsubimage(ctx, 3, target, level, 3292 xoffset, yoffset, zoffset, 3293 width, height, depth, 3294 format, type, pixels); 3295} 3296 3297 3298 3299/** 3300 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 3301 * from. This depends on whether the texture contains color or depth values. 3302 */ 3303static struct gl_renderbuffer * 3304get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 3305{ 3306 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 3307 /* reading from depth/stencil buffer */ 3308 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 3309 } 3310 else { 3311 /* copying from color buffer */ 3312 return ctx->ReadBuffer->_ColorReadBuffer; 3313 } 3314} 3315 3316 3317 3318/** 3319 * Implement the glCopyTexImage1/2D() functions. 3320 */ 3321static void 3322copyteximage(struct gl_context *ctx, GLuint dims, 3323 GLenum target, GLint level, GLenum internalFormat, 3324 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 3325{ 3326 struct gl_texture_object *texObj; 3327 struct gl_texture_image *texImage; 3328 const GLuint face = _mesa_tex_target_to_face(target); 3329 3330 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3331 3332 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3333 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 3334 dims, 3335 _mesa_lookup_enum_by_nr(target), level, 3336 _mesa_lookup_enum_by_nr(internalFormat), 3337 x, y, width, height, border); 3338 3339 if (ctx->NewState & NEW_COPY_TEX_STATE) 3340 _mesa_update_state(ctx); 3341 3342 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 3343 width, height, border)) 3344 return; 3345 3346 texObj = _mesa_get_current_tex_object(ctx, target); 3347 3348 if (border && ctx->Const.StripTextureBorder) { 3349 x += border; 3350 width -= border * 2; 3351 if (dims == 2) { 3352 y += border; 3353 height -= border * 2; 3354 } 3355 border = 0; 3356 } 3357 3358 _mesa_lock_texture(ctx, texObj); 3359 { 3360 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3361 3362 if (!texImage) { 3363 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 3364 } 3365 else { 3366 /* choose actual hw format */ 3367 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 3368 target, level, 3369 internalFormat, 3370 GL_NONE, GL_NONE); 3371 3372 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 3373 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 3374 3375 /* Free old texture image */ 3376 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3377 3378 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 3379 border, internalFormat, texFormat); 3380 3381 /* Allocate texture memory (no pixel data yet) */ 3382 ctx->Driver.TexImage(ctx, dims, texImage, 3383 GL_NONE, GL_NONE, 3384 NULL, &ctx->Unpack); 3385 3386 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 3387 &width, &height)) { 3388 struct gl_renderbuffer *srcRb = 3389 get_copy_tex_image_source(ctx, texImage->TexFormat); 3390 3391 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 3392 srcRb, srcX, srcY, width, height); 3393 } 3394 3395 check_gen_mipmap(ctx, target, texObj, level); 3396 3397 _mesa_update_fbo_texture(ctx, texObj, face, level); 3398 3399 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3400 } 3401 else { 3402 /* probably too large of image */ 3403 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 3404 } 3405 } 3406 } 3407 _mesa_unlock_texture(ctx, texObj); 3408} 3409 3410 3411 3412void GLAPIENTRY 3413_mesa_CopyTexImage1D( GLenum target, GLint level, 3414 GLenum internalFormat, 3415 GLint x, GLint y, 3416 GLsizei width, GLint border ) 3417{ 3418 GET_CURRENT_CONTEXT(ctx); 3419 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 3420} 3421 3422 3423 3424void GLAPIENTRY 3425_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 3426 GLint x, GLint y, GLsizei width, GLsizei height, 3427 GLint border ) 3428{ 3429 GET_CURRENT_CONTEXT(ctx); 3430 copyteximage(ctx, 2, target, level, internalFormat, 3431 x, y, width, height, border); 3432} 3433 3434 3435 3436/** 3437 * Implementation for glCopyTexSubImage1/2/3D() functions. 3438 */ 3439static void 3440copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3441 GLint xoffset, GLint yoffset, GLint zoffset, 3442 GLint x, GLint y, GLsizei width, GLsizei height) 3443{ 3444 struct gl_texture_object *texObj; 3445 struct gl_texture_image *texImage; 3446 3447 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3448 3449 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3450 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3451 dims, 3452 _mesa_lookup_enum_by_nr(target), 3453 level, xoffset, yoffset, zoffset, x, y, width, height); 3454 3455 if (ctx->NewState & NEW_COPY_TEX_STATE) 3456 _mesa_update_state(ctx); 3457 3458 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3459 return; 3460 3461 texObj = _mesa_get_current_tex_object(ctx, target); 3462 3463 _mesa_lock_texture(ctx, texObj); 3464 { 3465 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3466 3467 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3468 zoffset, width, height, texImage)) { 3469 /* error was recored */ 3470 } 3471 else { 3472 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3473 switch (dims) { 3474 case 3: 3475 if (target != GL_TEXTURE_2D_ARRAY) 3476 zoffset += texImage->Border; 3477 /* fall-through */ 3478 case 2: 3479 if (target != GL_TEXTURE_1D_ARRAY) 3480 yoffset += texImage->Border; 3481 /* fall-through */ 3482 case 1: 3483 xoffset += texImage->Border; 3484 } 3485 3486 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3487 &width, &height)) { 3488 struct gl_renderbuffer *srcRb = 3489 get_copy_tex_image_source(ctx, texImage->TexFormat); 3490 3491 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3492 xoffset, yoffset, zoffset, 3493 srcRb, x, y, width, height); 3494 3495 check_gen_mipmap(ctx, target, texObj, level); 3496 3497 ctx->NewState |= _NEW_TEXTURE; 3498 } 3499 } 3500 } 3501 _mesa_unlock_texture(ctx, texObj); 3502} 3503 3504 3505void GLAPIENTRY 3506_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3507 GLint xoffset, GLint x, GLint y, GLsizei width ) 3508{ 3509 GET_CURRENT_CONTEXT(ctx); 3510 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3511} 3512 3513 3514 3515void GLAPIENTRY 3516_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3517 GLint xoffset, GLint yoffset, 3518 GLint x, GLint y, GLsizei width, GLsizei height ) 3519{ 3520 GET_CURRENT_CONTEXT(ctx); 3521 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3522 width, height); 3523} 3524 3525 3526 3527void GLAPIENTRY 3528_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3529 GLint xoffset, GLint yoffset, GLint zoffset, 3530 GLint x, GLint y, GLsizei width, GLsizei height ) 3531{ 3532 GET_CURRENT_CONTEXT(ctx); 3533 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3534 x, y, width, height); 3535} 3536 3537 3538 3539 3540/**********************************************************************/ 3541/****** Compressed Textures ******/ 3542/**********************************************************************/ 3543 3544 3545/** 3546 * Error checking for glCompressedTexSubImage[123]D(). 3547 * \warning There are some bad assumptions here about the size of compressed 3548 * texture tiles (multiple of 4) used to test the validity of the 3549 * offset and size parameters. 3550 * \return error code or GL_NO_ERROR. 3551 */ 3552static GLenum 3553compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3554 GLenum target, GLint level, 3555 GLint xoffset, GLint yoffset, GLint zoffset, 3556 GLsizei width, GLsizei height, GLsizei depth, 3557 GLenum format, GLsizei imageSize) 3558{ 3559 GLint expectedSize, maxLevels = 0, maxTextureSize; 3560 GLuint bw, bh; 3561 (void) zoffset; 3562 3563 if (dimensions == 1) { 3564 /* 1D compressed textures not allowed */ 3565 return GL_INVALID_ENUM; 3566 } 3567 else if (dimensions == 2) { 3568 if (target == GL_PROXY_TEXTURE_2D) { 3569 maxLevels = ctx->Const.MaxTextureLevels; 3570 } 3571 else if (target == GL_TEXTURE_2D) { 3572 maxLevels = ctx->Const.MaxTextureLevels; 3573 } 3574 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3575 if (!ctx->Extensions.ARB_texture_cube_map) 3576 return GL_INVALID_ENUM; /*target*/ 3577 maxLevels = ctx->Const.MaxCubeTextureLevels; 3578 } 3579 else if (_mesa_is_cube_face(target)) { 3580 if (!ctx->Extensions.ARB_texture_cube_map) 3581 return GL_INVALID_ENUM; /*target*/ 3582 maxLevels = ctx->Const.MaxCubeTextureLevels; 3583 } 3584 else { 3585 return GL_INVALID_ENUM; /*target*/ 3586 } 3587 } 3588 else if (dimensions == 3) { 3589 /* 3D compressed textures not allowed */ 3590 return GL_INVALID_ENUM; 3591 } 3592 3593 maxTextureSize = 1 << (maxLevels - 1); 3594 3595 /* this will catch any invalid compressed format token */ 3596 if (!_mesa_is_compressed_format(ctx, format)) 3597 return GL_INVALID_ENUM; 3598 3599 if (width < 1 || width > maxTextureSize) 3600 return GL_INVALID_VALUE; 3601 3602 if ((height < 1 || height > maxTextureSize) 3603 && dimensions > 1) 3604 return GL_INVALID_VALUE; 3605 3606 if (level < 0 || level >= maxLevels) 3607 return GL_INVALID_VALUE; 3608 3609 /* 3610 * do checks which depend on compression block size 3611 */ 3612 get_compressed_block_size(format, &bw, &bh); 3613 3614 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3615 return GL_INVALID_OPERATION; 3616 3617 if ((width % bw != 0) && width != 2 && width != 1) 3618 return GL_INVALID_OPERATION; 3619 3620 if ((height % bh != 0) && height != 2 && height != 1) 3621 return GL_INVALID_OPERATION; 3622 3623 expectedSize = compressed_tex_size(width, height, depth, format); 3624 if (expectedSize != imageSize) 3625 return GL_INVALID_VALUE; 3626 3627 return GL_NO_ERROR; 3628} 3629 3630 3631/** 3632 * Do second part of glCompressedTexSubImage error checking. 3633 * \return GL_TRUE if error found, GL_FALSE otherwise. 3634 */ 3635static GLboolean 3636compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3637 GLsizei width, GLsizei height, 3638 GLsizei depth, GLenum format, 3639 struct gl_texture_image *texImage) 3640{ 3641 if (!texImage) { 3642 _mesa_error(ctx, GL_INVALID_OPERATION, 3643 "glCompressedTexSubImage%uD(undefined image level)", dims); 3644 return GL_TRUE; 3645 } 3646 3647 if ((GLint) format != texImage->InternalFormat) { 3648 _mesa_error(ctx, GL_INVALID_OPERATION, 3649 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3650 return GL_TRUE; 3651 } 3652 3653 if (compressedteximage_only_format(ctx, format)) { 3654 _mesa_error(ctx, GL_INVALID_OPERATION, 3655 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3656 , dims, format); 3657 return GL_TRUE; 3658 } 3659 3660 if (((width == 1 || width == 2) && 3661 width != (GLsizei) texImage->Width) || 3662 (width > (GLsizei) texImage->Width)) { 3663 _mesa_error(ctx, GL_INVALID_VALUE, 3664 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3665 return GL_TRUE; 3666 } 3667 3668 if (dims >= 2) { 3669 if (((height == 1 || height == 2) && 3670 height != (GLsizei) texImage->Height) || 3671 (height > (GLsizei) texImage->Height)) { 3672 _mesa_error(ctx, GL_INVALID_VALUE, 3673 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3674 return GL_TRUE; 3675 } 3676 } 3677 3678 if (dims >= 3) { 3679 if (((depth == 1 || depth == 2) && 3680 depth != (GLsizei) texImage->Depth) || 3681 (depth > (GLsizei) texImage->Depth)) { 3682 _mesa_error(ctx, GL_INVALID_VALUE, 3683 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3684 return GL_TRUE; 3685 } 3686 } 3687 3688 return GL_FALSE; 3689} 3690 3691 3692void GLAPIENTRY 3693_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3694 GLenum internalFormat, GLsizei width, 3695 GLint border, GLsizei imageSize, 3696 const GLvoid *data) 3697{ 3698 GET_CURRENT_CONTEXT(ctx); 3699 teximage(ctx, GL_TRUE, 1, target, level, internalFormat, 3700 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data); 3701} 3702 3703 3704void GLAPIENTRY 3705_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3706 GLenum internalFormat, GLsizei width, 3707 GLsizei height, GLint border, GLsizei imageSize, 3708 const GLvoid *data) 3709{ 3710 GET_CURRENT_CONTEXT(ctx); 3711 teximage(ctx, GL_TRUE, 2, target, level, internalFormat, 3712 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data); 3713} 3714 3715 3716void GLAPIENTRY 3717_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3718 GLenum internalFormat, GLsizei width, 3719 GLsizei height, GLsizei depth, GLint border, 3720 GLsizei imageSize, const GLvoid *data) 3721{ 3722 GET_CURRENT_CONTEXT(ctx); 3723 teximage(ctx, GL_TRUE, 3, target, level, internalFormat, 3724 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data); 3725} 3726 3727 3728/** 3729 * Common helper for glCompressedTexSubImage1/2/3D(). 3730 */ 3731static void 3732compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3733 GLint xoffset, GLint yoffset, GLint zoffset, 3734 GLsizei width, GLsizei height, GLsizei depth, 3735 GLenum format, GLsizei imageSize, const GLvoid *data) 3736{ 3737 struct gl_texture_object *texObj; 3738 struct gl_texture_image *texImage; 3739 GLenum error; 3740 GET_CURRENT_CONTEXT(ctx); 3741 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3742 3743 error = compressed_subtexture_error_check(ctx, dims, target, level, 3744 xoffset, 0, 0, /* pos */ 3745 width, height, depth, /* size */ 3746 format, imageSize); 3747 if (error) { 3748 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3749 return; 3750 } 3751 3752 texObj = _mesa_get_current_tex_object(ctx, target); 3753 3754 _mesa_lock_texture(ctx, texObj); 3755 { 3756 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3757 3758 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3759 format, texImage)) { 3760 /* error was recorded */ 3761 } 3762 else if (width > 0 && height > 0 && depth > 0) { 3763 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3764 xoffset, yoffset, zoffset, 3765 width, height, depth, 3766 format, imageSize, data); 3767 3768 check_gen_mipmap(ctx, target, texObj, level); 3769 3770 ctx->NewState |= _NEW_TEXTURE; 3771 } 3772 } 3773 _mesa_unlock_texture(ctx, texObj); 3774} 3775 3776 3777void GLAPIENTRY 3778_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3779 GLsizei width, GLenum format, 3780 GLsizei imageSize, const GLvoid *data) 3781{ 3782 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3783 format, imageSize, data); 3784} 3785 3786 3787void GLAPIENTRY 3788_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3789 GLint yoffset, GLsizei width, GLsizei height, 3790 GLenum format, GLsizei imageSize, 3791 const GLvoid *data) 3792{ 3793 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3794 width, height, 1, format, imageSize, data); 3795} 3796 3797 3798void GLAPIENTRY 3799_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3800 GLint yoffset, GLint zoffset, GLsizei width, 3801 GLsizei height, GLsizei depth, GLenum format, 3802 GLsizei imageSize, const GLvoid *data) 3803{ 3804 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3805 width, height, depth, format, imageSize, data); 3806} 3807 3808static gl_format 3809get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3810{ 3811 switch (internalFormat) { 3812 case GL_ALPHA8: 3813 return MESA_FORMAT_A8; 3814 case GL_ALPHA16: 3815 return MESA_FORMAT_A16; 3816 case GL_ALPHA16F_ARB: 3817 return MESA_FORMAT_ALPHA_FLOAT16; 3818 case GL_ALPHA32F_ARB: 3819 return MESA_FORMAT_ALPHA_FLOAT32; 3820 case GL_ALPHA8I_EXT: 3821 return MESA_FORMAT_ALPHA_INT8; 3822 case GL_ALPHA16I_EXT: 3823 return MESA_FORMAT_ALPHA_INT16; 3824 case GL_ALPHA32I_EXT: 3825 return MESA_FORMAT_ALPHA_INT32; 3826 case GL_ALPHA8UI_EXT: 3827 return MESA_FORMAT_ALPHA_UINT8; 3828 case GL_ALPHA16UI_EXT: 3829 return MESA_FORMAT_ALPHA_UINT16; 3830 case GL_ALPHA32UI_EXT: 3831 return MESA_FORMAT_ALPHA_UINT32; 3832 case GL_LUMINANCE8: 3833 return MESA_FORMAT_L8; 3834 case GL_LUMINANCE16: 3835 return MESA_FORMAT_L16; 3836 case GL_LUMINANCE16F_ARB: 3837 return MESA_FORMAT_LUMINANCE_FLOAT16; 3838 case GL_LUMINANCE32F_ARB: 3839 return MESA_FORMAT_LUMINANCE_FLOAT32; 3840 case GL_LUMINANCE8I_EXT: 3841 return MESA_FORMAT_LUMINANCE_INT8; 3842 case GL_LUMINANCE16I_EXT: 3843 return MESA_FORMAT_LUMINANCE_INT16; 3844 case GL_LUMINANCE32I_EXT: 3845 return MESA_FORMAT_LUMINANCE_INT32; 3846 case GL_LUMINANCE8UI_EXT: 3847 return MESA_FORMAT_LUMINANCE_UINT8; 3848 case GL_LUMINANCE16UI_EXT: 3849 return MESA_FORMAT_LUMINANCE_UINT16; 3850 case GL_LUMINANCE32UI_EXT: 3851 return MESA_FORMAT_LUMINANCE_UINT32; 3852 case GL_LUMINANCE8_ALPHA8: 3853 return MESA_FORMAT_AL88; 3854 case GL_LUMINANCE16_ALPHA16: 3855 return MESA_FORMAT_AL1616; 3856 case GL_LUMINANCE_ALPHA16F_ARB: 3857 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3858 case GL_LUMINANCE_ALPHA32F_ARB: 3859 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3860 case GL_LUMINANCE_ALPHA8I_EXT: 3861 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3862 case GL_LUMINANCE_ALPHA16I_EXT: 3863 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3864 case GL_LUMINANCE_ALPHA32I_EXT: 3865 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3866 case GL_LUMINANCE_ALPHA8UI_EXT: 3867 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3868 case GL_LUMINANCE_ALPHA16UI_EXT: 3869 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3870 case GL_LUMINANCE_ALPHA32UI_EXT: 3871 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3872 case GL_INTENSITY8: 3873 return MESA_FORMAT_I8; 3874 case GL_INTENSITY16: 3875 return MESA_FORMAT_I16; 3876 case GL_INTENSITY16F_ARB: 3877 return MESA_FORMAT_INTENSITY_FLOAT16; 3878 case GL_INTENSITY32F_ARB: 3879 return MESA_FORMAT_INTENSITY_FLOAT32; 3880 case GL_INTENSITY8I_EXT: 3881 return MESA_FORMAT_INTENSITY_INT8; 3882 case GL_INTENSITY16I_EXT: 3883 return MESA_FORMAT_INTENSITY_INT16; 3884 case GL_INTENSITY32I_EXT: 3885 return MESA_FORMAT_INTENSITY_INT32; 3886 case GL_INTENSITY8UI_EXT: 3887 return MESA_FORMAT_INTENSITY_UINT8; 3888 case GL_INTENSITY16UI_EXT: 3889 return MESA_FORMAT_INTENSITY_UINT16; 3890 case GL_INTENSITY32UI_EXT: 3891 return MESA_FORMAT_INTENSITY_UINT32; 3892 case GL_RGBA8: 3893 return MESA_FORMAT_RGBA8888_REV; 3894 case GL_RGBA16: 3895 return MESA_FORMAT_RGBA_16; 3896 case GL_RGBA16F_ARB: 3897 return MESA_FORMAT_RGBA_FLOAT16; 3898 case GL_RGBA32F_ARB: 3899 return MESA_FORMAT_RGBA_FLOAT32; 3900 case GL_RGBA8I_EXT: 3901 return MESA_FORMAT_RGBA_INT8; 3902 case GL_RGBA16I_EXT: 3903 return MESA_FORMAT_RGBA_INT16; 3904 case GL_RGBA32I_EXT: 3905 return MESA_FORMAT_RGBA_INT32; 3906 case GL_RGBA8UI_EXT: 3907 return MESA_FORMAT_RGBA_UINT8; 3908 case GL_RGBA16UI_EXT: 3909 return MESA_FORMAT_RGBA_UINT16; 3910 case GL_RGBA32UI_EXT: 3911 return MESA_FORMAT_RGBA_UINT32; 3912 3913 case GL_RG8: 3914 return MESA_FORMAT_GR88; 3915 case GL_RG16: 3916 return MESA_FORMAT_RG1616; 3917 case GL_RG16F: 3918 return MESA_FORMAT_RG_FLOAT16; 3919 case GL_RG32F: 3920 return MESA_FORMAT_RG_FLOAT32; 3921 case GL_RG8I: 3922 return MESA_FORMAT_RG_INT8; 3923 case GL_RG16I: 3924 return MESA_FORMAT_RG_INT16; 3925 case GL_RG32I: 3926 return MESA_FORMAT_RG_INT32; 3927 case GL_RG8UI: 3928 return MESA_FORMAT_RG_UINT8; 3929 case GL_RG16UI: 3930 return MESA_FORMAT_RG_UINT16; 3931 case GL_RG32UI: 3932 return MESA_FORMAT_RG_UINT32; 3933 3934 case GL_R8: 3935 return MESA_FORMAT_R8; 3936 case GL_R16: 3937 return MESA_FORMAT_R16; 3938 case GL_R16F: 3939 return MESA_FORMAT_R_FLOAT16; 3940 case GL_R32F: 3941 return MESA_FORMAT_R_FLOAT32; 3942 case GL_R8I: 3943 return MESA_FORMAT_R_INT8; 3944 case GL_R16I: 3945 return MESA_FORMAT_R_INT16; 3946 case GL_R32I: 3947 return MESA_FORMAT_R_INT32; 3948 case GL_R8UI: 3949 return MESA_FORMAT_R_UINT8; 3950 case GL_R16UI: 3951 return MESA_FORMAT_R_UINT16; 3952 case GL_R32UI: 3953 return MESA_FORMAT_R_UINT32; 3954 3955 default: 3956 return MESA_FORMAT_NONE; 3957 } 3958} 3959 3960static gl_format 3961validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3962{ 3963 gl_format format = get_texbuffer_format(ctx, internalFormat); 3964 GLenum datatype; 3965 3966 if (format == MESA_FORMAT_NONE) 3967 return MESA_FORMAT_NONE; 3968 3969 datatype = _mesa_get_format_datatype(format); 3970 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3971 return MESA_FORMAT_NONE; 3972 3973 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3974 return MESA_FORMAT_NONE; 3975 3976 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3977 * any mention of R/RG formats, but they appear in the GL 3.1 core 3978 * specification. 3979 */ 3980 if (ctx->Version <= 30) { 3981 GLenum base_format = _mesa_get_format_base_format(format); 3982 3983 if (base_format == GL_R || base_format == GL_RG) 3984 return MESA_FORMAT_NONE; 3985 } 3986 return format; 3987} 3988 3989 3990/** GL_ARB_texture_buffer_object */ 3991void GLAPIENTRY 3992_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 3993{ 3994 struct gl_texture_object *texObj; 3995 struct gl_buffer_object *bufObj; 3996 gl_format format; 3997 3998 GET_CURRENT_CONTEXT(ctx); 3999 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 4000 4001 if (!(ctx->Extensions.ARB_texture_buffer_object 4002 && _mesa_is_desktop_gl(ctx))) { 4003 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 4004 return; 4005 } 4006 4007 if (target != GL_TEXTURE_BUFFER_ARB) { 4008 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 4009 return; 4010 } 4011 4012 format = validate_texbuffer_format(ctx, internalFormat); 4013 if (format == MESA_FORMAT_NONE) { 4014 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 4015 internalFormat); 4016 return; 4017 } 4018 4019 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 4020 if (buffer && !bufObj) { 4021 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 4022 return; 4023 } 4024 4025 texObj = _mesa_get_current_tex_object(ctx, target); 4026 4027 _mesa_lock_texture(ctx, texObj); 4028 { 4029 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 4030 texObj->BufferObjectFormat = internalFormat; 4031 texObj->_BufferObjectFormat = format; 4032 } 4033 _mesa_unlock_texture(ctx, texObj); 4034} 4035