teximage.c revision 42723d88d370a7599398cc1c2349aeb951ba1c57
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 */ 663static GLenum 664get_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 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 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1251 if (width < 2 * border || width > 2 * border + maxSize) 1252 return GL_FALSE; 1253 if (level >= ctx->Const.MaxTextureLevels) 1254 return GL_FALSE; 1255 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1256 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1257 return GL_FALSE; 1258 } 1259 return GL_TRUE; 1260 1261 case GL_PROXY_TEXTURE_2D: 1262 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1263 if (width < 2 * border || width > 2 * border + maxSize) 1264 return GL_FALSE; 1265 if (height < 2 * border || height > 2 * border + maxSize) 1266 return GL_FALSE; 1267 if (level >= ctx->Const.MaxTextureLevels) 1268 return GL_FALSE; 1269 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1270 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1271 return GL_FALSE; 1272 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1273 return GL_FALSE; 1274 } 1275 return GL_TRUE; 1276 1277 case GL_PROXY_TEXTURE_3D: 1278 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1279 if (width < 2 * border || width > 2 * border + maxSize) 1280 return GL_FALSE; 1281 if (height < 2 * border || height > 2 * border + maxSize) 1282 return GL_FALSE; 1283 if (depth < 2 * border || depth > 2 * border + maxSize) 1284 return GL_FALSE; 1285 if (level >= ctx->Const.Max3DTextureLevels) 1286 return GL_FALSE; 1287 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1288 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1289 return GL_FALSE; 1290 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1291 return GL_FALSE; 1292 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1293 return GL_FALSE; 1294 } 1295 return GL_TRUE; 1296 1297 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1298 maxSize = ctx->Const.MaxTextureRectSize; 1299 if (width < 0 || width > maxSize) 1300 return GL_FALSE; 1301 if (height < 0 || height > maxSize) 1302 return GL_FALSE; 1303 if (level != 0) 1304 return GL_FALSE; 1305 return GL_TRUE; 1306 1307 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1308 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1309 if (width < 2 * border || width > 2 * border + maxSize) 1310 return GL_FALSE; 1311 if (height < 2 * border || height > 2 * border + maxSize) 1312 return GL_FALSE; 1313 if (level >= ctx->Const.MaxCubeTextureLevels) 1314 return GL_FALSE; 1315 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1316 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1317 return GL_FALSE; 1318 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1319 return GL_FALSE; 1320 } 1321 return GL_TRUE; 1322 1323 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1324 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1325 if (width < 2 * border || width > 2 * border + maxSize) 1326 return GL_FALSE; 1327 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1328 return GL_FALSE; 1329 if (level >= ctx->Const.MaxTextureLevels) 1330 return GL_FALSE; 1331 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1332 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1333 return GL_FALSE; 1334 } 1335 return GL_TRUE; 1336 1337 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1338 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1339 if (width < 2 * border || width > 2 * border + maxSize) 1340 return GL_FALSE; 1341 if (height < 2 * border || height > 2 * border + maxSize) 1342 return GL_FALSE; 1343 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1344 return GL_FALSE; 1345 if (level >= ctx->Const.MaxTextureLevels) 1346 return GL_FALSE; 1347 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1348 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1349 return GL_FALSE; 1350 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1351 return GL_FALSE; 1352 } 1353 return GL_TRUE; 1354 1355 default: 1356 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1357 return GL_FALSE; 1358 } 1359} 1360 1361 1362/** 1363 * Check if the memory used by the texture would exceed the driver's limit. 1364 * This lets us support a max 3D texture size of 8K (for example) but 1365 * prevents allocating a full 8K x 8K x 8K texture. 1366 * XXX this could be rolled into the proxy texture size test (above) but 1367 * we don't have the actual texture internal format at that point. 1368 */ 1369static GLboolean 1370legal_texture_size(struct gl_context *ctx, gl_format format, 1371 GLint width, GLint height, GLint depth) 1372{ 1373 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1374 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1375 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1376} 1377 1378 1379/** 1380 * Return true if the format is only valid for glCompressedTexImage. 1381 */ 1382static GLboolean 1383compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1384{ 1385 switch (format) { 1386 case GL_ETC1_RGB8_OES: 1387 case GL_PALETTE4_RGB8_OES: 1388 case GL_PALETTE4_RGBA8_OES: 1389 case GL_PALETTE4_R5_G6_B5_OES: 1390 case GL_PALETTE4_RGBA4_OES: 1391 case GL_PALETTE4_RGB5_A1_OES: 1392 case GL_PALETTE8_RGB8_OES: 1393 case GL_PALETTE8_RGBA8_OES: 1394 case GL_PALETTE8_R5_G6_B5_OES: 1395 case GL_PALETTE8_RGBA4_OES: 1396 case GL_PALETTE8_RGB5_A1_OES: 1397 return GL_TRUE; 1398 default: 1399 return GL_FALSE; 1400 } 1401} 1402 1403 1404/** 1405 * Helper function to determine whether a target and specific compression 1406 * format are supported. 1407 */ 1408static GLboolean 1409target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1410 GLenum intFormat) 1411{ 1412 (void) intFormat; /* not used yet */ 1413 1414 switch (target) { 1415 case GL_TEXTURE_2D: 1416 case GL_PROXY_TEXTURE_2D: 1417 return GL_TRUE; /* true for any compressed format so far */ 1418 case GL_PROXY_TEXTURE_CUBE_MAP: 1419 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1420 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1421 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1422 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1423 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1424 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1425 return ctx->Extensions.ARB_texture_cube_map; 1426 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1427 case GL_TEXTURE_2D_ARRAY_EXT: 1428 return (ctx->Extensions.MESA_texture_array || 1429 ctx->Extensions.EXT_texture_array); 1430 default: 1431 return GL_FALSE; 1432 } 1433} 1434 1435 1436/** 1437 * Check if the given texture target value is legal for a 1438 * glTexImage1/2/3D call. 1439 */ 1440static GLboolean 1441legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1442{ 1443 switch (dims) { 1444 case 1: 1445 switch (target) { 1446 case GL_TEXTURE_1D: 1447 case GL_PROXY_TEXTURE_1D: 1448 return _mesa_is_desktop_gl(ctx); 1449 default: 1450 return GL_FALSE; 1451 } 1452 case 2: 1453 switch (target) { 1454 case GL_TEXTURE_2D: 1455 return GL_TRUE; 1456 case GL_PROXY_TEXTURE_2D: 1457 return _mesa_is_desktop_gl(ctx); 1458 case GL_PROXY_TEXTURE_CUBE_MAP: 1459 return _mesa_is_desktop_gl(ctx) 1460 && ctx->Extensions.ARB_texture_cube_map; 1461 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1462 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1463 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1464 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1465 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1466 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1467 return ctx->Extensions.ARB_texture_cube_map; 1468 case GL_TEXTURE_RECTANGLE_NV: 1469 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1470 return _mesa_is_desktop_gl(ctx) 1471 && ctx->Extensions.NV_texture_rectangle; 1472 case GL_TEXTURE_1D_ARRAY_EXT: 1473 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1474 return _mesa_is_desktop_gl(ctx) 1475 && (ctx->Extensions.MESA_texture_array || 1476 ctx->Extensions.EXT_texture_array); 1477 default: 1478 return GL_FALSE; 1479 } 1480 case 3: 1481 switch (target) { 1482 case GL_TEXTURE_3D: 1483 return GL_TRUE; 1484 case GL_PROXY_TEXTURE_3D: 1485 return _mesa_is_desktop_gl(ctx); 1486 case GL_TEXTURE_2D_ARRAY_EXT: 1487 return (_mesa_is_desktop_gl(ctx) 1488 && (ctx->Extensions.MESA_texture_array || 1489 ctx->Extensions.EXT_texture_array)) 1490 || _mesa_is_gles3(ctx); 1491 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1492 return _mesa_is_desktop_gl(ctx) 1493 && (ctx->Extensions.MESA_texture_array || 1494 ctx->Extensions.EXT_texture_array); 1495 default: 1496 return GL_FALSE; 1497 } 1498 default: 1499 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1500 return GL_FALSE; 1501 } 1502} 1503 1504 1505/** 1506 * Check if the given texture target value is legal for a 1507 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1508 * The difference compared to legal_teximage_target() above is that 1509 * proxy targets are not supported. 1510 */ 1511static GLboolean 1512legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1513{ 1514 switch (dims) { 1515 case 1: 1516 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D; 1517 case 2: 1518 switch (target) { 1519 case GL_TEXTURE_2D: 1520 return GL_TRUE; 1521 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1522 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1523 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1524 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1525 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1526 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1527 return ctx->Extensions.ARB_texture_cube_map; 1528 case GL_TEXTURE_RECTANGLE_NV: 1529 return _mesa_is_desktop_gl(ctx) 1530 && ctx->Extensions.NV_texture_rectangle; 1531 case GL_TEXTURE_1D_ARRAY_EXT: 1532 return _mesa_is_desktop_gl(ctx) 1533 && (ctx->Extensions.MESA_texture_array || 1534 ctx->Extensions.EXT_texture_array); 1535 default: 1536 return GL_FALSE; 1537 } 1538 case 3: 1539 switch (target) { 1540 case GL_TEXTURE_3D: 1541 return GL_TRUE; 1542 case GL_TEXTURE_2D_ARRAY_EXT: 1543 return (_mesa_is_desktop_gl(ctx) 1544 && (ctx->Extensions.MESA_texture_array || 1545 ctx->Extensions.EXT_texture_array)) 1546 || _mesa_is_gles3(ctx); 1547 default: 1548 return GL_FALSE; 1549 } 1550 default: 1551 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1552 dims); 1553 return GL_FALSE; 1554 } 1555} 1556 1557 1558/** 1559 * Helper function to determine if a texture object is mutable (in terms 1560 * of GL_ARB_texture_storage). 1561 */ 1562static GLboolean 1563mutable_tex_object(struct gl_context *ctx, GLenum target) 1564{ 1565 if (ctx->Extensions.ARB_texture_storage) { 1566 struct gl_texture_object *texObj = 1567 _mesa_get_current_tex_object(ctx, target); 1568 return !texObj->Immutable; 1569 } 1570 return GL_TRUE; 1571} 1572 1573 1574GLenum 1575_mesa_es_error_check_format_and_type(GLenum format, GLenum type, 1576 unsigned dimensions) 1577{ 1578 bool type_valid = true; 1579 1580 switch (format) { 1581 case GL_ALPHA: 1582 case GL_LUMINANCE: 1583 case GL_LUMINANCE_ALPHA: 1584 type_valid = (type == GL_UNSIGNED_BYTE 1585 || type == GL_FLOAT 1586 || type == GL_HALF_FLOAT_OES); 1587 break; 1588 1589 case GL_RGB: 1590 type_valid = (type == GL_UNSIGNED_BYTE 1591 || type == GL_UNSIGNED_SHORT_5_6_5 1592 || type == GL_FLOAT 1593 || type == GL_HALF_FLOAT_OES); 1594 break; 1595 1596 case GL_RGBA: 1597 type_valid = (type == GL_UNSIGNED_BYTE 1598 || type == GL_UNSIGNED_SHORT_4_4_4_4 1599 || type == GL_UNSIGNED_SHORT_5_5_5_1 1600 || type == GL_FLOAT 1601 || type == GL_HALF_FLOAT_OES 1602 || type == GL_UNSIGNED_INT_2_10_10_10_REV); 1603 break; 1604 1605 case GL_DEPTH_COMPONENT: 1606 /* This format is filtered against invalid dimensionalities elsewhere. 1607 */ 1608 type_valid = (type == GL_UNSIGNED_SHORT 1609 || type == GL_UNSIGNED_INT); 1610 break; 1611 1612 case GL_DEPTH_STENCIL: 1613 /* This format is filtered against invalid dimensionalities elsewhere. 1614 */ 1615 type_valid = (type == GL_UNSIGNED_INT_24_8); 1616 break; 1617 1618 case GL_BGRA_EXT: 1619 type_valid = (type == GL_UNSIGNED_BYTE); 1620 1621 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but 1622 * the format does not appear to be allowed for 3D textures in OpenGL 1623 * ES. 1624 */ 1625 if (dimensions != 2) 1626 return GL_INVALID_VALUE; 1627 1628 break; 1629 1630 default: 1631 return GL_INVALID_VALUE; 1632 } 1633 1634 return type_valid ? GL_NO_ERROR : GL_INVALID_OPERATION; 1635} 1636 1637 1638 1639/** 1640 * Return expected size of a compressed texture. 1641 */ 1642static GLuint 1643compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 1644 GLenum glformat) 1645{ 1646 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 1647 return _mesa_format_image_size(mesaFormat, width, height, depth); 1648} 1649 1650 1651/* 1652 * Return compressed texture block size, in pixels. 1653 */ 1654static void 1655get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 1656{ 1657 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 1658 _mesa_get_format_block_size(mesaFormat, bw, bh); 1659} 1660 1661 1662/** 1663 * Special value returned by error some texture error checking functions when 1664 * an error is detected and the proxy texture image's width/height/depth/format 1665 * fields should be zeroed-out. 1666 */ 1667#define PROXY_ERROR 2 1668 1669 1670/** 1671 * Test the glTexImage[123]D() parameters for errors. 1672 * 1673 * \param ctx GL context. 1674 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1675 * \param target texture target given by the user. 1676 * \param level image level given by the user. 1677 * \param internalFormat internal format given by the user. 1678 * \param format pixel data format given by the user. 1679 * \param type pixel data type given by the user. 1680 * \param width image width given by the user. 1681 * \param height image height given by the user. 1682 * \param depth image depth given by the user. 1683 * \param border image border given by the user. 1684 * 1685 * \return PROXY_ERROR if there's an error that should zero-out the proxy image, 1686 * GL_TRUE if a regular GL error is found, or GL_FALSE if no error, 1687 * 1688 * Verifies each of the parameters against the constants specified in 1689 * __struct gl_contextRec::Const and the supported extensions, and according 1690 * to the OpenGL specification. 1691 */ 1692static GLenum 1693texture_error_check( struct gl_context *ctx, 1694 GLuint dimensions, GLenum target, 1695 GLint level, GLint internalFormat, 1696 GLenum format, GLenum type, 1697 GLint width, GLint height, 1698 GLint depth, GLint border ) 1699{ 1700 const GLenum proxyTarget = get_proxy_target(target); 1701 const GLboolean isProxy = target == proxyTarget; 1702 GLboolean sizeOK = GL_TRUE; 1703 GLboolean colorFormat; 1704 GLenum err; 1705 1706 /* Even though there are no color-index textures, we still have to support 1707 * uploading color-index data and remapping it to RGB via the 1708 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1709 */ 1710 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1711 1712 /* Note: for proxy textures, some error conditions immediately generate 1713 * a GL error in the usual way. But others do not generate a GL error. 1714 * Instead, they cause the width, height, depth, format fields of the 1715 * texture image to be zeroed-out. The GL spec seems to indicate that the 1716 * zero-out behaviour is only used in cases related to memory allocation. 1717 */ 1718 1719 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1720 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1721 _mesa_error(ctx, GL_INVALID_VALUE, 1722 "glTexImage%dD(level=%d)", dimensions, level); 1723 return GL_TRUE; 1724 } 1725 1726 /* Check border */ 1727 if (border < 0 || border > 1 || 1728 ((ctx->API != API_OPENGL || 1729 target == GL_TEXTURE_RECTANGLE_NV || 1730 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1731 _mesa_error(ctx, GL_INVALID_VALUE, 1732 "glTexImage%dD(border=%d)", dimensions, border); 1733 return GL_TRUE; 1734 } 1735 1736 if (width < 0 || height < 0 || depth < 0) { 1737 _mesa_error(ctx, GL_INVALID_VALUE, 1738 "glTexImage%dD(width, height or depth < 0)", dimensions); 1739 return GL_TRUE; 1740 } 1741 1742 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 1743 * combinations of format, internalFormat, and type that can be used. 1744 * Formats and types that require additional extensions (e.g., GL_FLOAT 1745 * requires GL_OES_texture_float) are filtered elsewhere. 1746 */ 1747 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 1748 if (format != internalFormat) { 1749 _mesa_error(ctx, GL_INVALID_OPERATION, 1750 "glTexImage%dD(format = %s, internalFormat = %s)", 1751 dimensions, 1752 _mesa_lookup_enum_by_nr(format), 1753 _mesa_lookup_enum_by_nr(internalFormat)); 1754 return GL_TRUE; 1755 } 1756 1757 err = _mesa_es_error_check_format_and_type(format, type, dimensions); 1758 if (err != GL_NO_ERROR) { 1759 _mesa_error(ctx, err, 1760 "glTexImage%dD(format = %s, type = %s)", 1761 dimensions, 1762 _mesa_lookup_enum_by_nr(format), 1763 _mesa_lookup_enum_by_nr(type)); 1764 return GL_TRUE; 1765 } 1766 } 1767 1768 /* Do this simple check before calling the TestProxyTexImage() function */ 1769 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1770 sizeOK = (width == height); 1771 } 1772 1773 /* 1774 * Use the proxy texture driver hook to see if the size/level/etc are 1775 * legal. 1776 */ 1777 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1778 internalFormat, format, 1779 type, width, height, 1780 depth, border); 1781 if (!sizeOK) { 1782 if (isProxy) { 1783 /* No GL error is recorded, but we need to zero-out the image dims */ 1784 return PROXY_ERROR; 1785 } 1786 else { 1787 _mesa_error(ctx, GL_INVALID_VALUE, 1788 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1789 dimensions, level, width, height, depth); 1790 return GL_TRUE; 1791 } 1792 } 1793 1794 /* Check internalFormat */ 1795 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1796 _mesa_error(ctx, GL_INVALID_VALUE, 1797 "glTexImage%dD(internalFormat=%s)", 1798 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1799 return GL_TRUE; 1800 } 1801 1802 /* Check incoming image format and type */ 1803 err = _mesa_error_check_format_and_type(ctx, format, type); 1804 if (err != GL_NO_ERROR) { 1805 _mesa_error(ctx, err, 1806 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1807 dimensions, format, type); 1808 return GL_TRUE; 1809 } 1810 1811 /* make sure internal format and format basically agree */ 1812 colorFormat = _mesa_is_color_format(format); 1813 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1814 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1815 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1816 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1817 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1818 _mesa_error(ctx, GL_INVALID_OPERATION, 1819 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1820 dimensions, internalFormat, format); 1821 return GL_TRUE; 1822 } 1823 1824 /* additional checks for ycbcr textures */ 1825 if (internalFormat == GL_YCBCR_MESA) { 1826 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1827 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1828 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1829 char message[100]; 1830 _mesa_snprintf(message, sizeof(message), 1831 "glTexImage%dD(format/type YCBCR mismatch)", 1832 dimensions); 1833 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1834 return GL_TRUE; /* error */ 1835 } 1836 if (target != GL_TEXTURE_2D && 1837 target != GL_PROXY_TEXTURE_2D && 1838 target != GL_TEXTURE_RECTANGLE_NV && 1839 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1840 _mesa_error(ctx, GL_INVALID_ENUM, 1841 "glTexImage%dD(bad target for YCbCr texture)", 1842 dimensions); 1843 return GL_TRUE; 1844 } 1845 if (border != 0) { 1846 char message[100]; 1847 _mesa_snprintf(message, sizeof(message), 1848 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1849 dimensions, border); 1850 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1851 return GL_TRUE; 1852 } 1853 } 1854 1855 /* additional checks for depth textures */ 1856 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1857 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1858 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1859 if (target != GL_TEXTURE_1D && 1860 target != GL_PROXY_TEXTURE_1D && 1861 target != GL_TEXTURE_2D && 1862 target != GL_PROXY_TEXTURE_2D && 1863 target != GL_TEXTURE_1D_ARRAY && 1864 target != GL_PROXY_TEXTURE_1D_ARRAY && 1865 target != GL_TEXTURE_2D_ARRAY && 1866 target != GL_PROXY_TEXTURE_2D_ARRAY && 1867 target != GL_TEXTURE_RECTANGLE_ARB && 1868 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1869 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1870 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1871 _mesa_error(ctx, GL_INVALID_ENUM, 1872 "glTexImage%dD(bad target for depth texture)", 1873 dimensions); 1874 return GL_TRUE; 1875 } 1876 } 1877 1878 /* additional checks for compressed textures */ 1879 if (_mesa_is_compressed_format(ctx, internalFormat)) { 1880 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1881 _mesa_error(ctx, GL_INVALID_ENUM, 1882 "glTexImage%dD(target can't be compressed)", dimensions); 1883 return GL_TRUE; 1884 } 1885 if (compressedteximage_only_format(ctx, internalFormat)) { 1886 _mesa_error(ctx, GL_INVALID_OPERATION, 1887 "glTexImage%dD(no compression for format)", dimensions); 1888 return GL_TRUE; 1889 } 1890 if (border != 0) { 1891 _mesa_error(ctx, GL_INVALID_OPERATION, 1892 "glTexImage%dD(border!=0)", dimensions); 1893 return GL_TRUE; 1894 } 1895 } 1896 1897 /* additional checks for integer textures */ 1898 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1899 (_mesa_is_enum_format_integer(format) != 1900 _mesa_is_enum_format_integer(internalFormat))) { 1901 _mesa_error(ctx, GL_INVALID_OPERATION, 1902 "glTexImage%dD(integer/non-integer format mismatch)", 1903 dimensions); 1904 return GL_TRUE; 1905 } 1906 1907 if (!mutable_tex_object(ctx, target)) { 1908 _mesa_error(ctx, GL_INVALID_OPERATION, 1909 "glTexImage%dD(immutable texture)", dimensions); 1910 return GL_TRUE; 1911 } 1912 1913 /* if we get here, the parameters are OK */ 1914 return GL_FALSE; 1915} 1916 1917 1918/** 1919 * Error checking for glCompressedTexImage[123]D(). 1920 * \param reason returns reason for error, if any 1921 * \return error code or GL_NO_ERROR or PROXY_ERROR. 1922 */ 1923static GLenum 1924compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 1925 GLenum target, GLint level, 1926 GLenum internalFormat, GLsizei width, 1927 GLsizei height, GLsizei depth, GLint border, 1928 GLsizei imageSize) 1929{ 1930 const GLenum proxyTarget = get_proxy_target(target); 1931 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 1932 GLint expectedSize; 1933 GLenum choose_format; 1934 GLenum choose_type; 1935 GLenum proxy_format; 1936 GLenum error = GL_NO_ERROR; 1937 char *reason = ""; /* no error */ 1938 1939 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1940 reason = "target"; 1941 error = GL_INVALID_ENUM; 1942 goto error; 1943 } 1944 1945 /* This will detect any invalid internalFormat value */ 1946 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 1947 reason = "internalFormat"; 1948 error = GL_INVALID_ENUM; 1949 goto error; 1950 } 1951 1952 switch (internalFormat) { 1953#if FEATURE_ES 1954 case GL_PALETTE4_RGB8_OES: 1955 case GL_PALETTE4_RGBA8_OES: 1956 case GL_PALETTE4_R5_G6_B5_OES: 1957 case GL_PALETTE4_RGBA4_OES: 1958 case GL_PALETTE4_RGB5_A1_OES: 1959 case GL_PALETTE8_RGB8_OES: 1960 case GL_PALETTE8_RGBA8_OES: 1961 case GL_PALETTE8_R5_G6_B5_OES: 1962 case GL_PALETTE8_RGBA4_OES: 1963 case GL_PALETTE8_RGB5_A1_OES: 1964 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 1965 &choose_type); 1966 proxy_format = choose_format; 1967 1968 /* check level (note that level should be zero or less!) */ 1969 if (level > 0 || level < -maxLevels) { 1970 reason = "level"; 1971 error = GL_INVALID_VALUE; 1972 goto error; 1973 } 1974 1975 if (dimensions != 2) { 1976 reason = "compressed paletted textures must be 2D"; 1977 error = GL_INVALID_OPERATION; 1978 goto error; 1979 } 1980 1981 /* Figure out the expected texture size (in bytes). This will be 1982 * checked against the actual size later. 1983 */ 1984 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 1985 width, height); 1986 1987 /* This is for the benefit of the TestProxyTexImage below. It expects 1988 * level to be non-negative. OES_compressed_paletted_texture uses a 1989 * weird mechanism where the level specified to glCompressedTexImage2D 1990 * is -(n-1) number of levels in the texture, and the data specifies the 1991 * complete mipmap stack. This is done to ensure the palette is the 1992 * same for all levels. 1993 */ 1994 level = -level; 1995 break; 1996#endif 1997 1998 default: 1999 choose_format = GL_NONE; 2000 choose_type = GL_NONE; 2001 proxy_format = internalFormat; 2002 2003 /* check level */ 2004 if (level < 0 || level >= maxLevels) { 2005 reason = "level"; 2006 error = GL_INVALID_VALUE; 2007 goto error; 2008 } 2009 2010 /* Figure out the expected texture size (in bytes). This will be 2011 * checked against the actual size later. 2012 */ 2013 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 2014 break; 2015 } 2016 2017 /* This should really never fail */ 2018 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 2019 reason = "internalFormat"; 2020 error = GL_INVALID_ENUM; 2021 goto error; 2022 } 2023 2024 /* No compressed formats support borders at this time */ 2025 if (border != 0) { 2026 reason = "border != 0"; 2027 error = GL_INVALID_VALUE; 2028 goto error; 2029 } 2030 2031 /* For cube map, width must equal height */ 2032 if (_mesa_is_cube_face(target) && width != height) { 2033 reason = "width != height"; 2034 error = GL_INVALID_VALUE; 2035 goto error; 2036 } 2037 2038 /* check image size against compression block size */ 2039 { 2040 gl_format texFormat = 2041 ctx->Driver.ChooseTextureFormat(ctx, target, proxy_format, 2042 choose_format, choose_type); 2043 GLuint bw, bh; 2044 2045 _mesa_get_format_block_size(texFormat, &bw, &bh); 2046 if ((width > bw && width % bw > 0) || 2047 (height > bh && height % bh > 0)) { 2048 /* 2049 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is 2050 * generated [...] if any parameter combinations are not 2051 * supported by the specific compressed internal format. 2052 */ 2053 reason = "invalid width or height for compression format"; 2054 error = GL_INVALID_OPERATION; 2055 goto error; 2056 } 2057 } 2058 2059 /* check image sizes */ 2060 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2061 proxy_format, choose_format, 2062 choose_type, 2063 width, height, depth, border)) { 2064 /* See error comment above */ 2065 if (target == proxyTarget) { 2066 return PROXY_ERROR; 2067 } 2068 reason = "invalid width, height or format"; 2069 error = GL_INVALID_OPERATION; 2070 goto error; 2071 } 2072 2073 /* check image size in bytes */ 2074 if (expectedSize != imageSize) { 2075 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 2076 * if <imageSize> is not consistent with the format, dimensions, and 2077 * contents of the specified image. 2078 */ 2079 reason = "imageSize inconsistant with width/height/format"; 2080 error = GL_INVALID_VALUE; 2081 goto error; 2082 } 2083 2084 if (!mutable_tex_object(ctx, target)) { 2085 reason = "immutable texture"; 2086 error = GL_INVALID_OPERATION; 2087 goto error; 2088 } 2089 2090 return GL_NO_ERROR; 2091 2092error: 2093 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason); 2094 return error; 2095} 2096 2097 2098 2099/** 2100 * Test glTexSubImage[123]D() parameters for errors. 2101 * 2102 * \param ctx GL context. 2103 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2104 * \param target texture target given by the user. 2105 * \param level image level given by the user. 2106 * \param xoffset sub-image x offset given by the user. 2107 * \param yoffset sub-image y offset given by the user. 2108 * \param zoffset sub-image z offset given by the user. 2109 * \param format pixel data format given by the user. 2110 * \param type pixel data type given by the user. 2111 * \param width image width given by the user. 2112 * \param height image height given by the user. 2113 * \param depth image depth given by the user. 2114 * 2115 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2116 * 2117 * Verifies each of the parameters against the constants specified in 2118 * __struct gl_contextRec::Const and the supported extensions, and according 2119 * to the OpenGL specification. 2120 */ 2121static GLboolean 2122subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 2123 GLenum target, GLint level, 2124 GLint xoffset, GLint yoffset, GLint zoffset, 2125 GLint width, GLint height, GLint depth, 2126 GLenum format, GLenum type ) 2127{ 2128 GLenum err; 2129 2130 /* Basic level check */ 2131 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2132 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 2133 return GL_TRUE; 2134 } 2135 2136 /* Check for negative sizes */ 2137 if (width < 0) { 2138 _mesa_error(ctx, GL_INVALID_VALUE, 2139 "glTexSubImage%dD(width=%d)", dimensions, width); 2140 return GL_TRUE; 2141 } 2142 if (height < 0 && dimensions > 1) { 2143 _mesa_error(ctx, GL_INVALID_VALUE, 2144 "glTexSubImage%dD(height=%d)", dimensions, height); 2145 return GL_TRUE; 2146 } 2147 if (depth < 0 && dimensions > 2) { 2148 _mesa_error(ctx, GL_INVALID_VALUE, 2149 "glTexSubImage%dD(depth=%d)", dimensions, depth); 2150 return GL_TRUE; 2151 } 2152 2153 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 2154 * combinations of format and type that can be used. Formats and types 2155 * that require additional extensions (e.g., GL_FLOAT requires 2156 * GL_OES_texture_float) are filtered elsewhere. 2157 */ 2158 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 2159 err = _mesa_es_error_check_format_and_type(format, type, dimensions); 2160 if (err != GL_NO_ERROR) { 2161 _mesa_error(ctx, err, 2162 "glTexSubImage%dD(format = %s, type = %s)", 2163 dimensions, 2164 _mesa_lookup_enum_by_nr(format), 2165 _mesa_lookup_enum_by_nr(type)); 2166 return GL_TRUE; 2167 } 2168 } 2169 2170 err = _mesa_error_check_format_and_type(ctx, format, type); 2171 if (err != GL_NO_ERROR) { 2172 _mesa_error(ctx, err, 2173 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 2174 dimensions, format, type); 2175 return GL_TRUE; 2176 } 2177 2178 return GL_FALSE; 2179} 2180 2181 2182/** 2183 * Do second part of glTexSubImage which depends on the destination texture. 2184 * \return GL_TRUE if error recorded, GL_FALSE otherwise 2185 */ 2186static GLboolean 2187subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 2188 GLenum target, GLint level, 2189 GLint xoffset, GLint yoffset, GLint zoffset, 2190 GLint width, GLint height, GLint depth, 2191 GLenum format, GLenum type, 2192 const struct gl_texture_image *destTex ) 2193{ 2194 if (!destTex) { 2195 /* undefined image level */ 2196 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 2197 return GL_TRUE; 2198 } 2199 2200 if (xoffset < -((GLint)destTex->Border)) { 2201 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 2202 dimensions); 2203 return GL_TRUE; 2204 } 2205 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 2206 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 2207 dimensions); 2208 return GL_TRUE; 2209 } 2210 if (dimensions > 1) { 2211 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 2212 if (yoffset < -yBorder) { 2213 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 2214 dimensions); 2215 return GL_TRUE; 2216 } 2217 if (yoffset + height > (GLint) destTex->Height + yBorder) { 2218 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 2219 dimensions); 2220 return GL_TRUE; 2221 } 2222 } 2223 if (dimensions > 2) { 2224 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 2225 if (zoffset < -zBorder) { 2226 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 2227 return GL_TRUE; 2228 } 2229 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 2230 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 2231 return GL_TRUE; 2232 } 2233 } 2234 2235 if (_mesa_is_format_compressed(destTex->TexFormat)) { 2236 GLuint bw, bh; 2237 2238 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 2239 _mesa_error(ctx, GL_INVALID_OPERATION, 2240 "glTexSubImage%dD(no compression for format)", dimensions); 2241 return GL_TRUE; 2242 } 2243 2244 /* do tests which depend on compression block size */ 2245 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 2246 2247 /* offset must be multiple of block size */ 2248 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 2249 _mesa_error(ctx, GL_INVALID_OPERATION, 2250 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 2251 dimensions, xoffset, yoffset); 2252 return GL_TRUE; 2253 } 2254 /* size must be multiple of bw by bh or equal to whole texture size */ 2255 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 2256 _mesa_error(ctx, GL_INVALID_OPERATION, 2257 "glTexSubImage%dD(width = %d)", dimensions, width); 2258 return GL_TRUE; 2259 } 2260 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 2261 _mesa_error(ctx, GL_INVALID_OPERATION, 2262 "glTexSubImage%dD(height = %d)", dimensions, height); 2263 return GL_TRUE; 2264 } 2265 } 2266 2267 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 2268 /* both source and dest must be integer-valued, or neither */ 2269 if (_mesa_is_format_integer_color(destTex->TexFormat) != 2270 _mesa_is_enum_format_integer(format)) { 2271 _mesa_error(ctx, GL_INVALID_OPERATION, 2272 "glTexSubImage%dD(integer/non-integer format mismatch)", 2273 dimensions); 2274 return GL_TRUE; 2275 } 2276 } 2277 2278 return GL_FALSE; 2279} 2280 2281 2282/** 2283 * Test glCopyTexImage[12]D() parameters for errors. 2284 * 2285 * \param ctx GL context. 2286 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2287 * \param target texture target given by the user. 2288 * \param level image level given by the user. 2289 * \param internalFormat internal format given by the user. 2290 * \param width image width given by the user. 2291 * \param height image height given by the user. 2292 * \param border texture border. 2293 * 2294 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2295 * 2296 * Verifies each of the parameters against the constants specified in 2297 * __struct gl_contextRec::Const and the supported extensions, and according 2298 * to the OpenGL specification. 2299 */ 2300static GLboolean 2301copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 2302 GLenum target, GLint level, GLint internalFormat, 2303 GLint width, GLint height, GLint border ) 2304{ 2305 const GLenum proxyTarget = get_proxy_target(target); 2306 const GLenum type = GL_FLOAT; 2307 GLboolean sizeOK; 2308 GLint baseFormat; 2309 2310 /* check target */ 2311 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2312 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 2313 dimensions, _mesa_lookup_enum_by_nr(target)); 2314 return GL_TRUE; 2315 } 2316 2317 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 2318 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2319 _mesa_error(ctx, GL_INVALID_VALUE, 2320 "glCopyTexImage%dD(level=%d)", dimensions, level); 2321 return GL_TRUE; 2322 } 2323 2324 /* Check that the source buffer is complete */ 2325 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2326 if (ctx->ReadBuffer->_Status == 0) { 2327 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2328 } 2329 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2330 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2331 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2332 return GL_TRUE; 2333 } 2334 2335 if (ctx->ReadBuffer->Visual.samples > 0) { 2336 _mesa_error(ctx, GL_INVALID_OPERATION, 2337 "glCopyTexImage%dD(multisample FBO)", 2338 dimensions); 2339 return GL_TRUE; 2340 } 2341 } 2342 2343 /* Check border */ 2344 if (border < 0 || border > 1 || 2345 ((ctx->API != API_OPENGL || 2346 target == GL_TEXTURE_RECTANGLE_NV || 2347 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2348 _mesa_error(ctx, GL_INVALID_VALUE, 2349 "glCopyTexImage%dD(border=%d)", dimensions, border); 2350 return GL_TRUE; 2351 } 2352 2353 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the 2354 * internalFormat. 2355 */ 2356 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) { 2357 switch (internalFormat) { 2358 case GL_ALPHA: 2359 case GL_RGB: 2360 case GL_RGBA: 2361 case GL_LUMINANCE: 2362 case GL_LUMINANCE_ALPHA: 2363 break; 2364 default: 2365 _mesa_error(ctx, GL_INVALID_VALUE, 2366 "glCopyTexImage%dD(internalFormat)", dimensions); 2367 return GL_TRUE; 2368 } 2369 } 2370 2371 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2372 if (baseFormat < 0) { 2373 _mesa_error(ctx, GL_INVALID_VALUE, 2374 "glCopyTexImage%dD(internalFormat)", dimensions); 2375 return GL_TRUE; 2376 } 2377 2378 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2379 _mesa_error(ctx, GL_INVALID_OPERATION, 2380 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2381 return GL_TRUE; 2382 } 2383 2384 /* From the EXT_texture_integer spec: 2385 * 2386 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2387 * if the texture internalformat is an integer format and the read color 2388 * buffer is not an integer format, or if the internalformat is not an 2389 * integer format and the read color buffer is an integer format." 2390 */ 2391 if (_mesa_is_color_format(internalFormat)) { 2392 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2393 2394 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2395 _mesa_is_enum_format_integer(internalFormat)) { 2396 _mesa_error(ctx, GL_INVALID_OPERATION, 2397 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2398 return GL_TRUE; 2399 } 2400 } 2401 2402 /* Do size, level checking */ 2403 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2404 ? (width == height) : 1; 2405 2406 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2407 internalFormat, baseFormat, 2408 type, width, height, 2409 1, border); 2410 2411 if (!sizeOK) { 2412 if (dimensions == 1) { 2413 _mesa_error(ctx, GL_INVALID_VALUE, 2414 "glCopyTexImage1D(width=%d)", width); 2415 } 2416 else { 2417 ASSERT(dimensions == 2); 2418 _mesa_error(ctx, GL_INVALID_VALUE, 2419 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2420 } 2421 return GL_TRUE; 2422 } 2423 2424 if (_mesa_is_compressed_format(ctx, internalFormat)) { 2425 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2426 _mesa_error(ctx, GL_INVALID_ENUM, 2427 "glCopyTexImage%dD(target)", dimensions); 2428 return GL_TRUE; 2429 } 2430 if (compressedteximage_only_format(ctx, internalFormat)) { 2431 _mesa_error(ctx, GL_INVALID_OPERATION, 2432 "glCopyTexImage%dD(no compression for format)", dimensions); 2433 return GL_TRUE; 2434 } 2435 if (border != 0) { 2436 _mesa_error(ctx, GL_INVALID_OPERATION, 2437 "glCopyTexImage%dD(border!=0)", dimensions); 2438 return GL_TRUE; 2439 } 2440 } 2441 2442 if (!mutable_tex_object(ctx, target)) { 2443 _mesa_error(ctx, GL_INVALID_OPERATION, 2444 "glCopyTexImage%dD(immutable texture)", dimensions); 2445 return GL_TRUE; 2446 } 2447 2448 /* if we get here, the parameters are OK */ 2449 return GL_FALSE; 2450} 2451 2452 2453/** 2454 * Test glCopyTexSubImage[12]D() parameters for errors. 2455 * Note that this is the first part of error checking. 2456 * See also copytexsubimage_error_check2() below for the second part. 2457 * 2458 * \param ctx GL context. 2459 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2460 * \param target texture target given by the user. 2461 * \param level image level given by the user. 2462 * 2463 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2464 */ 2465static GLboolean 2466copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2467 GLenum target, GLint level) 2468{ 2469 /* Check that the source buffer is complete */ 2470 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2471 if (ctx->ReadBuffer->_Status == 0) { 2472 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2473 } 2474 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2475 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2476 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2477 return GL_TRUE; 2478 } 2479 2480 if (ctx->ReadBuffer->Visual.samples > 0) { 2481 _mesa_error(ctx, GL_INVALID_OPERATION, 2482 "glCopyTexSubImage%dD(multisample FBO)", 2483 dimensions); 2484 return GL_TRUE; 2485 } 2486 } 2487 2488 /* check target (proxies not allowed) */ 2489 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2490 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2491 dimensions, _mesa_lookup_enum_by_nr(target)); 2492 return GL_TRUE; 2493 } 2494 2495 /* Check level */ 2496 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2497 _mesa_error(ctx, GL_INVALID_VALUE, 2498 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2499 return GL_TRUE; 2500 } 2501 2502 return GL_FALSE; 2503} 2504 2505 2506/** 2507 * Second part of error checking for glCopyTexSubImage[12]D(). 2508 * \param xoffset sub-image x offset given by the user. 2509 * \param yoffset sub-image y offset given by the user. 2510 * \param zoffset sub-image z offset given by the user. 2511 * \param width image width given by the user. 2512 * \param height image height given by the user. 2513 */ 2514static GLboolean 2515copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2516 GLenum target, GLint level, 2517 GLint xoffset, GLint yoffset, GLint zoffset, 2518 GLsizei width, GLsizei height, 2519 const struct gl_texture_image *teximage ) 2520{ 2521 /* check that dest tex image exists */ 2522 if (!teximage) { 2523 _mesa_error(ctx, GL_INVALID_OPERATION, 2524 "glCopyTexSubImage%dD(undefined texture level: %d)", 2525 dimensions, level); 2526 return GL_TRUE; 2527 } 2528 2529 /* Check size */ 2530 if (width < 0) { 2531 _mesa_error(ctx, GL_INVALID_VALUE, 2532 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2533 return GL_TRUE; 2534 } 2535 if (dimensions > 1 && height < 0) { 2536 _mesa_error(ctx, GL_INVALID_VALUE, 2537 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2538 return GL_TRUE; 2539 } 2540 2541 /* check x/y offsets */ 2542 if (xoffset < -((GLint)teximage->Border)) { 2543 _mesa_error(ctx, GL_INVALID_VALUE, 2544 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2545 return GL_TRUE; 2546 } 2547 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2548 _mesa_error(ctx, GL_INVALID_VALUE, 2549 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2550 return GL_TRUE; 2551 } 2552 if (dimensions > 1) { 2553 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2554 if (yoffset < -yBorder) { 2555 _mesa_error(ctx, GL_INVALID_VALUE, 2556 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2557 return GL_TRUE; 2558 } 2559 /* NOTE: we're adding the border here, not subtracting! */ 2560 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2561 _mesa_error(ctx, GL_INVALID_VALUE, 2562 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2563 return GL_TRUE; 2564 } 2565 } 2566 2567 /* check z offset */ 2568 if (dimensions > 2) { 2569 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2570 if (zoffset < -zBorder) { 2571 _mesa_error(ctx, GL_INVALID_VALUE, 2572 "glCopyTexSubImage%dD(zoffset)", dimensions); 2573 return GL_TRUE; 2574 } 2575 if (zoffset > (GLint) teximage->Depth + zBorder) { 2576 _mesa_error(ctx, GL_INVALID_VALUE, 2577 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2578 return GL_TRUE; 2579 } 2580 } 2581 2582 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2583 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2584 _mesa_error(ctx, GL_INVALID_OPERATION, 2585 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2586 return GL_TRUE; 2587 } 2588 /* offset must be multiple of 4 */ 2589 if ((xoffset & 3) || (yoffset & 3)) { 2590 _mesa_error(ctx, GL_INVALID_VALUE, 2591 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2592 return GL_TRUE; 2593 } 2594 /* size must be multiple of 4 */ 2595 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2596 _mesa_error(ctx, GL_INVALID_VALUE, 2597 "glCopyTexSubImage%dD(width)", dimensions); 2598 return GL_TRUE; 2599 } 2600 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2601 _mesa_error(ctx, GL_INVALID_VALUE, 2602 "glCopyTexSubImage%dD(height)", dimensions); 2603 return GL_TRUE; 2604 } 2605 } 2606 2607 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2608 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2609 return GL_TRUE; 2610 } 2611 2612 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2613 _mesa_error(ctx, GL_INVALID_OPERATION, 2614 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2615 dimensions, teximage->_BaseFormat); 2616 return GL_TRUE; 2617 } 2618 2619 /* From the EXT_texture_integer spec: 2620 * 2621 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2622 * if the texture internalformat is an integer format and the read color 2623 * buffer is not an integer format, or if the internalformat is not an 2624 * integer format and the read color buffer is an integer format." 2625 */ 2626 if (_mesa_is_color_format(teximage->InternalFormat)) { 2627 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2628 2629 if (_mesa_is_format_integer_color(rb->Format) != 2630 _mesa_is_format_integer_color(teximage->TexFormat)) { 2631 _mesa_error(ctx, GL_INVALID_OPERATION, 2632 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2633 return GL_TRUE; 2634 } 2635 } 2636 2637 /* if we get here, the parameters are OK */ 2638 return GL_FALSE; 2639} 2640 2641 2642/** Callback info for walking over FBO hash table */ 2643struct cb_info 2644{ 2645 struct gl_context *ctx; 2646 struct gl_texture_object *texObj; 2647 GLuint level, face; 2648}; 2649 2650 2651/** 2652 * Check render to texture callback. Called from _mesa_HashWalk(). 2653 */ 2654static void 2655check_rtt_cb(GLuint key, void *data, void *userData) 2656{ 2657 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2658 const struct cb_info *info = (struct cb_info *) userData; 2659 struct gl_context *ctx = info->ctx; 2660 const struct gl_texture_object *texObj = info->texObj; 2661 const GLuint level = info->level, face = info->face; 2662 2663 /* If this is a user-created FBO */ 2664 if (_mesa_is_user_fbo(fb)) { 2665 GLuint i; 2666 /* check if any of the FBO's attachments point to 'texObj' */ 2667 for (i = 0; i < BUFFER_COUNT; i++) { 2668 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2669 if (att->Type == GL_TEXTURE && 2670 att->Texture == texObj && 2671 att->TextureLevel == level && 2672 att->CubeMapFace == face) { 2673 ASSERT(_mesa_get_attachment_teximage(att)); 2674 /* Tell driver about the new renderbuffer texture */ 2675 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2676 /* Mark fb status as indeterminate to force re-validation */ 2677 fb->_Status = 0; 2678 } 2679 } 2680 } 2681} 2682 2683 2684/** 2685 * When a texture image is specified we have to check if it's bound to 2686 * any framebuffer objects (render to texture) in order to detect changes 2687 * in size or format since that effects FBO completeness. 2688 * Any FBOs rendering into the texture must be re-validated. 2689 */ 2690void 2691_mesa_update_fbo_texture(struct gl_context *ctx, 2692 struct gl_texture_object *texObj, 2693 GLuint face, GLuint level) 2694{ 2695 /* Only check this texture if it's been marked as RenderToTexture */ 2696 if (texObj->_RenderToTexture) { 2697 struct cb_info info; 2698 info.ctx = ctx; 2699 info.texObj = texObj; 2700 info.level = level; 2701 info.face = face; 2702 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2703 } 2704} 2705 2706 2707/** 2708 * If the texture object's GenerateMipmap flag is set and we've 2709 * changed the texture base level image, regenerate the rest of the 2710 * mipmap levels now. 2711 */ 2712static inline void 2713check_gen_mipmap(struct gl_context *ctx, GLenum target, 2714 struct gl_texture_object *texObj, GLint level) 2715{ 2716 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2717 if (texObj->GenerateMipmap && 2718 level == texObj->BaseLevel && 2719 level < texObj->MaxLevel) { 2720 ASSERT(ctx->Driver.GenerateMipmap); 2721 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2722 } 2723} 2724 2725 2726/** Debug helper: override the user-requested internal format */ 2727static GLenum 2728override_internal_format(GLenum internalFormat, GLint width, GLint height) 2729{ 2730#if 0 2731 if (internalFormat == GL_RGBA16F_ARB || 2732 internalFormat == GL_RGBA32F_ARB) { 2733 printf("Convert rgba float tex to int %d x %d\n", width, height); 2734 return GL_RGBA; 2735 } 2736 else if (internalFormat == GL_RGB16F_ARB || 2737 internalFormat == GL_RGB32F_ARB) { 2738 printf("Convert rgb float tex to int %d x %d\n", width, height); 2739 return GL_RGB; 2740 } 2741 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2742 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2743 printf("Convert luminance float tex to int %d x %d\n", width, height); 2744 return GL_LUMINANCE_ALPHA; 2745 } 2746 else if (internalFormat == GL_LUMINANCE16F_ARB || 2747 internalFormat == GL_LUMINANCE32F_ARB) { 2748 printf("Convert luminance float tex to int %d x %d\n", width, height); 2749 return GL_LUMINANCE; 2750 } 2751 else if (internalFormat == GL_ALPHA16F_ARB || 2752 internalFormat == GL_ALPHA32F_ARB) { 2753 printf("Convert luminance float tex to int %d x %d\n", width, height); 2754 return GL_ALPHA; 2755 } 2756 /* 2757 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2758 internalFormat = GL_RGBA; 2759 } 2760 */ 2761 else { 2762 return internalFormat; 2763 } 2764#else 2765 return internalFormat; 2766#endif 2767} 2768 2769 2770/** 2771 * Choose the actual hardware format for a texture image. 2772 * Try to use the same format as the previous image level when possible. 2773 * Otherwise, ask the driver for the best format. 2774 * It's important to try to choose a consistant format for all levels 2775 * for efficient texture memory layout/allocation. In particular, this 2776 * comes up during automatic mipmap generation. 2777 */ 2778gl_format 2779_mesa_choose_texture_format(struct gl_context *ctx, 2780 struct gl_texture_object *texObj, 2781 GLenum target, GLint level, 2782 GLenum internalFormat, GLenum format, GLenum type) 2783{ 2784 gl_format f; 2785 2786 /* see if we've already chosen a format for the previous level */ 2787 if (level > 0) { 2788 struct gl_texture_image *prevImage = 2789 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2790 /* See if the prev level is defined and has an internal format which 2791 * matches the new internal format. 2792 */ 2793 if (prevImage && 2794 prevImage->Width > 0 && 2795 prevImage->InternalFormat == internalFormat) { 2796 /* use the same format */ 2797 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2798 return prevImage->TexFormat; 2799 } 2800 } 2801 2802 /* If the application requested compression to an S3TC format but we don't 2803 * have the DTXn library, force a generic compressed format instead. 2804 */ 2805 if (internalFormat != format) { 2806 const GLenum before = internalFormat; 2807 2808 switch (internalFormat) { 2809 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 2810 if (!ctx->Mesa_DXTn) 2811 internalFormat = GL_COMPRESSED_RGB; 2812 break; 2813 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 2814 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 2815 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 2816 if (!ctx->Mesa_DXTn) 2817 internalFormat = GL_COMPRESSED_RGBA; 2818 break; 2819 default: 2820 break; 2821 } 2822 2823 if (before != internalFormat) { 2824 _mesa_warning(ctx, 2825 "DXT compression requested (%s), " 2826 "but libtxc_dxtn library not installed. Using %s " 2827 "instead.", 2828 _mesa_lookup_enum_by_nr(before), 2829 _mesa_lookup_enum_by_nr(internalFormat)); 2830 } 2831 } 2832 2833 /* choose format from scratch */ 2834 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat, 2835 format, type); 2836 ASSERT(f != MESA_FORMAT_NONE); 2837 return f; 2838} 2839 2840/** 2841 * Adjust pixel unpack params and image dimensions to strip off the 2842 * one-pixel texture border. 2843 * 2844 * Gallium and intel don't support texture borders. They've seldem been used 2845 * and seldom been implemented correctly anyway. 2846 * 2847 * \param unpackNew returns the new pixel unpack parameters 2848 */ 2849static void 2850strip_texture_border(GLenum target, 2851 GLint *width, GLint *height, GLint *depth, 2852 const struct gl_pixelstore_attrib *unpack, 2853 struct gl_pixelstore_attrib *unpackNew) 2854{ 2855 assert(width); 2856 assert(height); 2857 assert(depth); 2858 2859 *unpackNew = *unpack; 2860 2861 if (unpackNew->RowLength == 0) 2862 unpackNew->RowLength = *width; 2863 2864 if (unpackNew->ImageHeight == 0) 2865 unpackNew->ImageHeight = *height; 2866 2867 assert(*width >= 3); 2868 unpackNew->SkipPixels++; /* skip the border */ 2869 *width = *width - 2; /* reduce the width by two border pixels */ 2870 2871 /* The min height of a texture with a border is 3 */ 2872 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2873 unpackNew->SkipRows++; /* skip the border */ 2874 *height = *height - 2; /* reduce the height by two border pixels */ 2875 } 2876 2877 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2878 unpackNew->SkipImages++; /* skip the border */ 2879 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2880 } 2881} 2882 2883 2884/** 2885 * Common code to implement all the glTexImage1D/2D/3D functions 2886 * as well as glCompressedTexImage1D/2D/3D. 2887 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls. 2888 * \param format the user's image format (only used if !compressed) 2889 * \param type the user's image type (only used if !compressed) 2890 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls. 2891 */ 2892static void 2893teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims, 2894 GLenum target, GLint level, GLint internalFormat, 2895 GLsizei width, GLsizei height, GLsizei depth, 2896 GLint border, GLenum format, GLenum type, 2897 GLsizei imageSize, const GLvoid *pixels) 2898{ 2899 const char *func = compressed ? "glCompressedTexImage" : "glTexImage"; 2900 GLenum error; 2901 struct gl_pixelstore_attrib unpack_no_border; 2902 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2903 2904 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2905 2906 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) { 2907 if (compressed) 2908 _mesa_debug(ctx, 2909 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n", 2910 dims, 2911 _mesa_lookup_enum_by_nr(target), level, 2912 _mesa_lookup_enum_by_nr(internalFormat), 2913 width, height, depth, border, pixels); 2914 else 2915 _mesa_debug(ctx, 2916 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2917 dims, 2918 _mesa_lookup_enum_by_nr(target), level, 2919 _mesa_lookup_enum_by_nr(internalFormat), 2920 width, height, depth, border, 2921 _mesa_lookup_enum_by_nr(format), 2922 _mesa_lookup_enum_by_nr(type), pixels); 2923 } 2924 2925 internalFormat = override_internal_format(internalFormat, width, height); 2926 2927 /* target error checking */ 2928 if (!legal_teximage_target(ctx, dims, target)) { 2929 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)", 2930 func, dims, _mesa_lookup_enum_by_nr(target)); 2931 return; 2932 } 2933 2934 /* general error checking */ 2935 if (compressed) { 2936 error = compressed_texture_error_check(ctx, dims, target, level, 2937 internalFormat, 2938 width, height, depth, 2939 border, imageSize); 2940 } 2941 else { 2942 error = texture_error_check(ctx, dims, target, level, internalFormat, 2943 format, type, width, height, depth, border); 2944 } 2945 2946#if FEATURE_ES 2947 /* Here we convert a cpal compressed image into a regular glTexImage2D 2948 * call by decompressing the texture. If we really want to support cpal 2949 * textures in any driver this would have to be changed. 2950 */ 2951 if (compressed && !error && dims == 2) { 2952 switch (internalFormat) { 2953 case GL_PALETTE4_RGB8_OES: 2954 case GL_PALETTE4_RGBA8_OES: 2955 case GL_PALETTE4_R5_G6_B5_OES: 2956 case GL_PALETTE4_RGBA4_OES: 2957 case GL_PALETTE4_RGB5_A1_OES: 2958 case GL_PALETTE8_RGB8_OES: 2959 case GL_PALETTE8_RGBA8_OES: 2960 case GL_PALETTE8_R5_G6_B5_OES: 2961 case GL_PALETTE8_RGBA4_OES: 2962 case GL_PALETTE8_RGB5_A1_OES: 2963 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 2964 width, height, imageSize, pixels); 2965 return; 2966 } 2967 } 2968#endif 2969 2970 if (_mesa_is_proxy_texture(target)) { 2971 /* Proxy texture: just clear or set state depending on error checking */ 2972 struct gl_texture_image *texImage = 2973 get_proxy_tex_image(ctx, target, level); 2974 gl_format texFormat = MESA_FORMAT_NONE; 2975 2976 if (!error) { 2977 /* No parameter errors. Choose a texture format and see if we 2978 * can really allocate the texture. 2979 */ 2980 struct gl_texture_object *texObj = 2981 _mesa_get_current_tex_object(ctx, target); 2982 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2983 internalFormat, format, type); 2984 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 2985 error = PROXY_ERROR; 2986 } 2987 } 2988 2989 if (error == PROXY_ERROR) { 2990 /* image too large, etc. Clear all proxy texture image parameters. */ 2991 if (texImage) 2992 clear_teximage_fields(texImage); 2993 } 2994 else if (error == GL_FALSE) { 2995 /* no error: store the teximage parameters */ 2996 if (texImage) 2997 _mesa_init_teximage_fields(ctx, texImage, width, height, depth, 2998 border, internalFormat, texFormat); 2999 } 3000 else { 3001 /* other, regular error (was already recorded) */ 3002 } 3003 } 3004 else { 3005 /* non-proxy target */ 3006 const GLuint face = _mesa_tex_target_to_face(target); 3007 struct gl_texture_object *texObj; 3008 struct gl_texture_image *texImage; 3009 3010 if (error) { 3011 return; /* error was recorded */ 3012 } 3013 3014 /* Allow a hardware driver to just strip out the border, to provide 3015 * reliable but slightly incorrect hardware rendering instead of 3016 * rarely-tested software fallback rendering. 3017 */ 3018 if (border && ctx->Const.StripTextureBorder) { 3019 strip_texture_border(target, &width, &height, &depth, unpack, 3020 &unpack_no_border); 3021 border = 0; 3022 unpack = &unpack_no_border; 3023 } 3024 3025 if (ctx->NewState & _NEW_PIXEL) 3026 _mesa_update_state(ctx); 3027 3028 texObj = _mesa_get_current_tex_object(ctx, target); 3029 3030 _mesa_lock_texture(ctx, texObj); 3031 { 3032 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3033 3034 if (!texImage) { 3035 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims); 3036 } 3037 else { 3038 gl_format texFormat; 3039 3040 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3041 3042 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3043 internalFormat, format, 3044 type); 3045 3046 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3047 _mesa_init_teximage_fields(ctx, texImage, 3048 width, height, depth, 3049 border, internalFormat, texFormat); 3050 3051 /* Give the texture to the driver. <pixels> may be null. */ 3052 if (compressed) { 3053 ctx->Driver.CompressedTexImage(ctx, dims, texImage, 3054 imageSize, pixels); 3055 } 3056 else { 3057 ctx->Driver.TexImage(ctx, dims, texImage, format, 3058 type, pixels, unpack); 3059 } 3060 3061 check_gen_mipmap(ctx, target, texObj, level); 3062 3063 _mesa_update_fbo_texture(ctx, texObj, face, level); 3064 3065 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3066 } 3067 else { 3068 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims); 3069 } 3070 } 3071 } 3072 _mesa_unlock_texture(ctx, texObj); 3073 } 3074} 3075 3076 3077/* 3078 * Called from the API. Note that width includes the border. 3079 */ 3080void GLAPIENTRY 3081_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 3082 GLsizei width, GLint border, GLenum format, 3083 GLenum type, const GLvoid *pixels ) 3084{ 3085 GET_CURRENT_CONTEXT(ctx); 3086 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1, 3087 border, format, type, 0, pixels); 3088} 3089 3090 3091void GLAPIENTRY 3092_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 3093 GLsizei width, GLsizei height, GLint border, 3094 GLenum format, GLenum type, 3095 const GLvoid *pixels ) 3096{ 3097 GET_CURRENT_CONTEXT(ctx); 3098 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1, 3099 border, format, type, 0, pixels); 3100} 3101 3102 3103/* 3104 * Called by the API or display list executor. 3105 * Note that width and height include the border. 3106 */ 3107void GLAPIENTRY 3108_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 3109 GLsizei width, GLsizei height, GLsizei depth, 3110 GLint border, GLenum format, GLenum type, 3111 const GLvoid *pixels ) 3112{ 3113 GET_CURRENT_CONTEXT(ctx); 3114 teximage(ctx, GL_FALSE, 3, target, level, internalFormat, 3115 width, height, depth, 3116 border, format, type, 0, pixels); 3117} 3118 3119 3120void GLAPIENTRY 3121_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 3122 GLsizei width, GLsizei height, GLsizei depth, 3123 GLint border, GLenum format, GLenum type, 3124 const GLvoid *pixels ) 3125{ 3126 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 3127 depth, border, format, type, pixels); 3128} 3129 3130 3131#if FEATURE_OES_EGL_image 3132void GLAPIENTRY 3133_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 3134{ 3135 struct gl_texture_object *texObj; 3136 struct gl_texture_image *texImage; 3137 bool valid_target; 3138 GET_CURRENT_CONTEXT(ctx); 3139 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3140 3141 switch (target) { 3142 case GL_TEXTURE_2D: 3143 valid_target = ctx->Extensions.OES_EGL_image; 3144 break; 3145 case GL_TEXTURE_EXTERNAL_OES: 3146 valid_target = ctx->Extensions.OES_EGL_image_external; 3147 break; 3148 default: 3149 valid_target = false; 3150 break; 3151 } 3152 3153 if (!valid_target) { 3154 _mesa_error(ctx, GL_INVALID_ENUM, 3155 "glEGLImageTargetTexture2D(target=%d)", target); 3156 return; 3157 } 3158 3159 if (ctx->NewState & _NEW_PIXEL) 3160 _mesa_update_state(ctx); 3161 3162 texObj = _mesa_get_current_tex_object(ctx, target); 3163 _mesa_lock_texture(ctx, texObj); 3164 3165 if (texObj->Immutable) { 3166 _mesa_error(ctx, GL_INVALID_OPERATION, 3167 "glEGLImageTargetTexture2D(texture is immutable)"); 3168 _mesa_unlock_texture(ctx, texObj); 3169 return; 3170 } 3171 3172 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 3173 if (!texImage) { 3174 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 3175 } else { 3176 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3177 3178 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 3179 texObj, texImage, image); 3180 3181 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3182 } 3183 _mesa_unlock_texture(ctx, texObj); 3184 3185} 3186#endif 3187 3188 3189 3190/** 3191 * Implement all the glTexSubImage1/2/3D() functions. 3192 */ 3193static void 3194texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3195 GLint xoffset, GLint yoffset, GLint zoffset, 3196 GLsizei width, GLsizei height, GLsizei depth, 3197 GLenum format, GLenum type, const GLvoid *pixels ) 3198{ 3199 struct gl_texture_object *texObj; 3200 struct gl_texture_image *texImage; 3201 3202 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3203 3204 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3205 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 3206 dims, 3207 _mesa_lookup_enum_by_nr(target), level, 3208 xoffset, yoffset, zoffset, width, height, depth, 3209 _mesa_lookup_enum_by_nr(format), 3210 _mesa_lookup_enum_by_nr(type), pixels); 3211 3212 /* check target (proxies not allowed) */ 3213 if (!legal_texsubimage_target(ctx, dims, target)) { 3214 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 3215 dims, _mesa_lookup_enum_by_nr(target)); 3216 return; 3217 } 3218 3219 if (ctx->NewState & _NEW_PIXEL) 3220 _mesa_update_state(ctx); 3221 3222 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 3223 width, height, depth, format, type)) { 3224 return; /* error was detected */ 3225 } 3226 3227 texObj = _mesa_get_current_tex_object(ctx, target); 3228 3229 _mesa_lock_texture(ctx, texObj); 3230 { 3231 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3232 3233 if (subtexture_error_check2(ctx, dims, target, level, 3234 xoffset, yoffset, zoffset, 3235 width, height, depth, 3236 format, type, texImage)) { 3237 /* error was recorded */ 3238 } 3239 else if (width > 0 && height > 0 && depth > 0) { 3240 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3241 switch (dims) { 3242 case 3: 3243 if (target != GL_TEXTURE_2D_ARRAY) 3244 zoffset += texImage->Border; 3245 /* fall-through */ 3246 case 2: 3247 if (target != GL_TEXTURE_1D_ARRAY) 3248 yoffset += texImage->Border; 3249 /* fall-through */ 3250 case 1: 3251 xoffset += texImage->Border; 3252 } 3253 3254 ctx->Driver.TexSubImage(ctx, dims, texImage, 3255 xoffset, yoffset, zoffset, 3256 width, height, depth, 3257 format, type, pixels, &ctx->Unpack); 3258 3259 check_gen_mipmap(ctx, target, texObj, level); 3260 3261 ctx->NewState |= _NEW_TEXTURE; 3262 } 3263 } 3264 _mesa_unlock_texture(ctx, texObj); 3265} 3266 3267 3268void GLAPIENTRY 3269_mesa_TexSubImage1D( GLenum target, GLint level, 3270 GLint xoffset, GLsizei width, 3271 GLenum format, GLenum type, 3272 const GLvoid *pixels ) 3273{ 3274 GET_CURRENT_CONTEXT(ctx); 3275 texsubimage(ctx, 1, target, level, 3276 xoffset, 0, 0, 3277 width, 1, 1, 3278 format, type, pixels); 3279} 3280 3281 3282void GLAPIENTRY 3283_mesa_TexSubImage2D( GLenum target, GLint level, 3284 GLint xoffset, GLint yoffset, 3285 GLsizei width, GLsizei height, 3286 GLenum format, GLenum type, 3287 const GLvoid *pixels ) 3288{ 3289 GET_CURRENT_CONTEXT(ctx); 3290 texsubimage(ctx, 2, target, level, 3291 xoffset, yoffset, 0, 3292 width, height, 1, 3293 format, type, pixels); 3294} 3295 3296 3297 3298void GLAPIENTRY 3299_mesa_TexSubImage3D( GLenum target, GLint level, 3300 GLint xoffset, GLint yoffset, GLint zoffset, 3301 GLsizei width, GLsizei height, GLsizei depth, 3302 GLenum format, GLenum type, 3303 const GLvoid *pixels ) 3304{ 3305 GET_CURRENT_CONTEXT(ctx); 3306 texsubimage(ctx, 3, target, level, 3307 xoffset, yoffset, zoffset, 3308 width, height, depth, 3309 format, type, pixels); 3310} 3311 3312 3313 3314/** 3315 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 3316 * from. This depends on whether the texture contains color or depth values. 3317 */ 3318static struct gl_renderbuffer * 3319get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 3320{ 3321 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 3322 /* reading from depth/stencil buffer */ 3323 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 3324 } 3325 else { 3326 /* copying from color buffer */ 3327 return ctx->ReadBuffer->_ColorReadBuffer; 3328 } 3329} 3330 3331 3332 3333/** 3334 * Implement the glCopyTexImage1/2D() functions. 3335 */ 3336static void 3337copyteximage(struct gl_context *ctx, GLuint dims, 3338 GLenum target, GLint level, GLenum internalFormat, 3339 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 3340{ 3341 struct gl_texture_object *texObj; 3342 struct gl_texture_image *texImage; 3343 const GLuint face = _mesa_tex_target_to_face(target); 3344 3345 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3346 3347 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3348 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 3349 dims, 3350 _mesa_lookup_enum_by_nr(target), level, 3351 _mesa_lookup_enum_by_nr(internalFormat), 3352 x, y, width, height, border); 3353 3354 if (ctx->NewState & NEW_COPY_TEX_STATE) 3355 _mesa_update_state(ctx); 3356 3357 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 3358 width, height, border)) 3359 return; 3360 3361 texObj = _mesa_get_current_tex_object(ctx, target); 3362 3363 if (border && ctx->Const.StripTextureBorder) { 3364 x += border; 3365 width -= border * 2; 3366 if (dims == 2) { 3367 y += border; 3368 height -= border * 2; 3369 } 3370 border = 0; 3371 } 3372 3373 _mesa_lock_texture(ctx, texObj); 3374 { 3375 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3376 3377 if (!texImage) { 3378 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 3379 } 3380 else { 3381 /* choose actual hw format */ 3382 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 3383 target, level, 3384 internalFormat, 3385 GL_NONE, GL_NONE); 3386 3387 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 3388 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 3389 3390 /* Free old texture image */ 3391 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3392 3393 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 3394 border, internalFormat, texFormat); 3395 3396 /* Allocate texture memory (no pixel data yet) */ 3397 ctx->Driver.TexImage(ctx, dims, texImage, 3398 GL_NONE, GL_NONE, 3399 NULL, &ctx->Unpack); 3400 3401 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 3402 &width, &height)) { 3403 struct gl_renderbuffer *srcRb = 3404 get_copy_tex_image_source(ctx, texImage->TexFormat); 3405 3406 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 3407 srcRb, srcX, srcY, width, height); 3408 } 3409 3410 check_gen_mipmap(ctx, target, texObj, level); 3411 3412 _mesa_update_fbo_texture(ctx, texObj, face, level); 3413 3414 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3415 } 3416 else { 3417 /* probably too large of image */ 3418 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 3419 } 3420 } 3421 } 3422 _mesa_unlock_texture(ctx, texObj); 3423} 3424 3425 3426 3427void GLAPIENTRY 3428_mesa_CopyTexImage1D( GLenum target, GLint level, 3429 GLenum internalFormat, 3430 GLint x, GLint y, 3431 GLsizei width, GLint border ) 3432{ 3433 GET_CURRENT_CONTEXT(ctx); 3434 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 3435} 3436 3437 3438 3439void GLAPIENTRY 3440_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 3441 GLint x, GLint y, GLsizei width, GLsizei height, 3442 GLint border ) 3443{ 3444 GET_CURRENT_CONTEXT(ctx); 3445 copyteximage(ctx, 2, target, level, internalFormat, 3446 x, y, width, height, border); 3447} 3448 3449 3450 3451/** 3452 * Implementation for glCopyTexSubImage1/2/3D() functions. 3453 */ 3454static void 3455copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3456 GLint xoffset, GLint yoffset, GLint zoffset, 3457 GLint x, GLint y, GLsizei width, GLsizei height) 3458{ 3459 struct gl_texture_object *texObj; 3460 struct gl_texture_image *texImage; 3461 3462 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3463 3464 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3465 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3466 dims, 3467 _mesa_lookup_enum_by_nr(target), 3468 level, xoffset, yoffset, zoffset, x, y, width, height); 3469 3470 if (ctx->NewState & NEW_COPY_TEX_STATE) 3471 _mesa_update_state(ctx); 3472 3473 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3474 return; 3475 3476 texObj = _mesa_get_current_tex_object(ctx, target); 3477 3478 _mesa_lock_texture(ctx, texObj); 3479 { 3480 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3481 3482 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3483 zoffset, width, height, texImage)) { 3484 /* error was recored */ 3485 } 3486 else { 3487 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3488 switch (dims) { 3489 case 3: 3490 if (target != GL_TEXTURE_2D_ARRAY) 3491 zoffset += texImage->Border; 3492 /* fall-through */ 3493 case 2: 3494 if (target != GL_TEXTURE_1D_ARRAY) 3495 yoffset += texImage->Border; 3496 /* fall-through */ 3497 case 1: 3498 xoffset += texImage->Border; 3499 } 3500 3501 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3502 &width, &height)) { 3503 struct gl_renderbuffer *srcRb = 3504 get_copy_tex_image_source(ctx, texImage->TexFormat); 3505 3506 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3507 xoffset, yoffset, zoffset, 3508 srcRb, x, y, width, height); 3509 3510 check_gen_mipmap(ctx, target, texObj, level); 3511 3512 ctx->NewState |= _NEW_TEXTURE; 3513 } 3514 } 3515 } 3516 _mesa_unlock_texture(ctx, texObj); 3517} 3518 3519 3520void GLAPIENTRY 3521_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3522 GLint xoffset, GLint x, GLint y, GLsizei width ) 3523{ 3524 GET_CURRENT_CONTEXT(ctx); 3525 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3526} 3527 3528 3529 3530void GLAPIENTRY 3531_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3532 GLint xoffset, GLint yoffset, 3533 GLint x, GLint y, GLsizei width, GLsizei height ) 3534{ 3535 GET_CURRENT_CONTEXT(ctx); 3536 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3537 width, height); 3538} 3539 3540 3541 3542void GLAPIENTRY 3543_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3544 GLint xoffset, GLint yoffset, GLint zoffset, 3545 GLint x, GLint y, GLsizei width, GLsizei height ) 3546{ 3547 GET_CURRENT_CONTEXT(ctx); 3548 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3549 x, y, width, height); 3550} 3551 3552 3553 3554 3555/**********************************************************************/ 3556/****** Compressed Textures ******/ 3557/**********************************************************************/ 3558 3559 3560/** 3561 * Error checking for glCompressedTexSubImage[123]D(). 3562 * \warning There are some bad assumptions here about the size of compressed 3563 * texture tiles (multiple of 4) used to test the validity of the 3564 * offset and size parameters. 3565 * \return error code or GL_NO_ERROR. 3566 */ 3567static GLenum 3568compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3569 GLenum target, GLint level, 3570 GLint xoffset, GLint yoffset, GLint zoffset, 3571 GLsizei width, GLsizei height, GLsizei depth, 3572 GLenum format, GLsizei imageSize) 3573{ 3574 GLint expectedSize, maxLevels = 0, maxTextureSize; 3575 GLuint bw, bh; 3576 (void) zoffset; 3577 3578 if (dimensions == 1) { 3579 /* 1D compressed textures not allowed */ 3580 return GL_INVALID_ENUM; 3581 } 3582 else if (dimensions == 2) { 3583 if (target == GL_PROXY_TEXTURE_2D) { 3584 maxLevels = ctx->Const.MaxTextureLevels; 3585 } 3586 else if (target == GL_TEXTURE_2D) { 3587 maxLevels = ctx->Const.MaxTextureLevels; 3588 } 3589 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3590 if (!ctx->Extensions.ARB_texture_cube_map) 3591 return GL_INVALID_ENUM; /*target*/ 3592 maxLevels = ctx->Const.MaxCubeTextureLevels; 3593 } 3594 else if (_mesa_is_cube_face(target)) { 3595 if (!ctx->Extensions.ARB_texture_cube_map) 3596 return GL_INVALID_ENUM; /*target*/ 3597 maxLevels = ctx->Const.MaxCubeTextureLevels; 3598 } 3599 else { 3600 return GL_INVALID_ENUM; /*target*/ 3601 } 3602 } 3603 else if (dimensions == 3) { 3604 /* 3D compressed textures not allowed */ 3605 return GL_INVALID_ENUM; 3606 } 3607 3608 maxTextureSize = 1 << (maxLevels - 1); 3609 3610 /* this will catch any invalid compressed format token */ 3611 if (!_mesa_is_compressed_format(ctx, format)) 3612 return GL_INVALID_ENUM; 3613 3614 if (width < 1 || width > maxTextureSize) 3615 return GL_INVALID_VALUE; 3616 3617 if ((height < 1 || height > maxTextureSize) 3618 && dimensions > 1) 3619 return GL_INVALID_VALUE; 3620 3621 if (level < 0 || level >= maxLevels) 3622 return GL_INVALID_VALUE; 3623 3624 /* 3625 * do checks which depend on compression block size 3626 */ 3627 get_compressed_block_size(format, &bw, &bh); 3628 3629 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3630 return GL_INVALID_VALUE; 3631 3632 if ((width % bw != 0) && width != 2 && width != 1) 3633 return GL_INVALID_VALUE; 3634 3635 if ((height % bh != 0) && height != 2 && height != 1) 3636 return GL_INVALID_VALUE; 3637 3638 expectedSize = compressed_tex_size(width, height, depth, format); 3639 if (expectedSize != imageSize) 3640 return GL_INVALID_VALUE; 3641 3642 return GL_NO_ERROR; 3643} 3644 3645 3646/** 3647 * Do second part of glCompressedTexSubImage error checking. 3648 * \return GL_TRUE if error found, GL_FALSE otherwise. 3649 */ 3650static GLboolean 3651compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3652 GLsizei width, GLsizei height, 3653 GLsizei depth, GLenum format, 3654 struct gl_texture_image *texImage) 3655{ 3656 3657 if ((GLint) format != texImage->InternalFormat) { 3658 _mesa_error(ctx, GL_INVALID_OPERATION, 3659 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3660 return GL_TRUE; 3661 } 3662 3663 if (compressedteximage_only_format(ctx, format)) { 3664 _mesa_error(ctx, GL_INVALID_OPERATION, 3665 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3666 , dims, format); 3667 return GL_TRUE; 3668 } 3669 3670 if (((width == 1 || width == 2) && 3671 width != (GLsizei) texImage->Width) || 3672 (width > (GLsizei) texImage->Width)) { 3673 _mesa_error(ctx, GL_INVALID_VALUE, 3674 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3675 return GL_TRUE; 3676 } 3677 3678 if (dims >= 2) { 3679 if (((height == 1 || height == 2) && 3680 height != (GLsizei) texImage->Height) || 3681 (height > (GLsizei) texImage->Height)) { 3682 _mesa_error(ctx, GL_INVALID_VALUE, 3683 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3684 return GL_TRUE; 3685 } 3686 } 3687 3688 if (dims >= 3) { 3689 if (((depth == 1 || depth == 2) && 3690 depth != (GLsizei) texImage->Depth) || 3691 (depth > (GLsizei) texImage->Depth)) { 3692 _mesa_error(ctx, GL_INVALID_VALUE, 3693 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3694 return GL_TRUE; 3695 } 3696 } 3697 3698 return GL_FALSE; 3699} 3700 3701 3702void GLAPIENTRY 3703_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3704 GLenum internalFormat, GLsizei width, 3705 GLint border, GLsizei imageSize, 3706 const GLvoid *data) 3707{ 3708 GET_CURRENT_CONTEXT(ctx); 3709 teximage(ctx, GL_TRUE, 1, target, level, internalFormat, 3710 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data); 3711} 3712 3713 3714void GLAPIENTRY 3715_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3716 GLenum internalFormat, GLsizei width, 3717 GLsizei height, GLint border, GLsizei imageSize, 3718 const GLvoid *data) 3719{ 3720 GET_CURRENT_CONTEXT(ctx); 3721 teximage(ctx, GL_TRUE, 2, target, level, internalFormat, 3722 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data); 3723} 3724 3725 3726void GLAPIENTRY 3727_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3728 GLenum internalFormat, GLsizei width, 3729 GLsizei height, GLsizei depth, GLint border, 3730 GLsizei imageSize, const GLvoid *data) 3731{ 3732 GET_CURRENT_CONTEXT(ctx); 3733 teximage(ctx, GL_TRUE, 3, target, level, internalFormat, 3734 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data); 3735} 3736 3737 3738/** 3739 * Common helper for glCompressedTexSubImage1/2/3D(). 3740 */ 3741static void 3742compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3743 GLint xoffset, GLint yoffset, GLint zoffset, 3744 GLsizei width, GLsizei height, GLsizei depth, 3745 GLenum format, GLsizei imageSize, const GLvoid *data) 3746{ 3747 struct gl_texture_object *texObj; 3748 struct gl_texture_image *texImage; 3749 GLenum error; 3750 GET_CURRENT_CONTEXT(ctx); 3751 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3752 3753 error = compressed_subtexture_error_check(ctx, dims, target, level, 3754 xoffset, 0, 0, /* pos */ 3755 width, height, depth, /* size */ 3756 format, imageSize); 3757 if (error) { 3758 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3759 return; 3760 } 3761 3762 texObj = _mesa_get_current_tex_object(ctx, target); 3763 3764 _mesa_lock_texture(ctx, texObj); 3765 { 3766 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3767 assert(texImage); 3768 3769 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3770 format, texImage)) { 3771 /* error was recorded */ 3772 } 3773 else if (width > 0 && height > 0 && depth > 0) { 3774 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3775 xoffset, yoffset, zoffset, 3776 width, height, depth, 3777 format, imageSize, data); 3778 3779 check_gen_mipmap(ctx, target, texObj, level); 3780 3781 ctx->NewState |= _NEW_TEXTURE; 3782 } 3783 } 3784 _mesa_unlock_texture(ctx, texObj); 3785} 3786 3787 3788void GLAPIENTRY 3789_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3790 GLsizei width, GLenum format, 3791 GLsizei imageSize, const GLvoid *data) 3792{ 3793 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3794 format, imageSize, data); 3795} 3796 3797 3798void GLAPIENTRY 3799_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3800 GLint yoffset, GLsizei width, GLsizei height, 3801 GLenum format, GLsizei imageSize, 3802 const GLvoid *data) 3803{ 3804 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3805 width, height, 1, format, imageSize, data); 3806} 3807 3808 3809void GLAPIENTRY 3810_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3811 GLint yoffset, GLint zoffset, GLsizei width, 3812 GLsizei height, GLsizei depth, GLenum format, 3813 GLsizei imageSize, const GLvoid *data) 3814{ 3815 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3816 width, height, depth, format, imageSize, data); 3817} 3818 3819static gl_format 3820get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3821{ 3822 switch (internalFormat) { 3823 case GL_ALPHA8: 3824 return MESA_FORMAT_A8; 3825 case GL_ALPHA16: 3826 return MESA_FORMAT_A16; 3827 case GL_ALPHA16F_ARB: 3828 return MESA_FORMAT_ALPHA_FLOAT16; 3829 case GL_ALPHA32F_ARB: 3830 return MESA_FORMAT_ALPHA_FLOAT32; 3831 case GL_ALPHA8I_EXT: 3832 return MESA_FORMAT_ALPHA_INT8; 3833 case GL_ALPHA16I_EXT: 3834 return MESA_FORMAT_ALPHA_INT16; 3835 case GL_ALPHA32I_EXT: 3836 return MESA_FORMAT_ALPHA_INT32; 3837 case GL_ALPHA8UI_EXT: 3838 return MESA_FORMAT_ALPHA_UINT8; 3839 case GL_ALPHA16UI_EXT: 3840 return MESA_FORMAT_ALPHA_UINT16; 3841 case GL_ALPHA32UI_EXT: 3842 return MESA_FORMAT_ALPHA_UINT32; 3843 case GL_LUMINANCE8: 3844 return MESA_FORMAT_L8; 3845 case GL_LUMINANCE16: 3846 return MESA_FORMAT_L16; 3847 case GL_LUMINANCE16F_ARB: 3848 return MESA_FORMAT_LUMINANCE_FLOAT16; 3849 case GL_LUMINANCE32F_ARB: 3850 return MESA_FORMAT_LUMINANCE_FLOAT32; 3851 case GL_LUMINANCE8I_EXT: 3852 return MESA_FORMAT_LUMINANCE_INT8; 3853 case GL_LUMINANCE16I_EXT: 3854 return MESA_FORMAT_LUMINANCE_INT16; 3855 case GL_LUMINANCE32I_EXT: 3856 return MESA_FORMAT_LUMINANCE_INT32; 3857 case GL_LUMINANCE8UI_EXT: 3858 return MESA_FORMAT_LUMINANCE_UINT8; 3859 case GL_LUMINANCE16UI_EXT: 3860 return MESA_FORMAT_LUMINANCE_UINT16; 3861 case GL_LUMINANCE32UI_EXT: 3862 return MESA_FORMAT_LUMINANCE_UINT32; 3863 case GL_LUMINANCE8_ALPHA8: 3864 return MESA_FORMAT_AL88; 3865 case GL_LUMINANCE16_ALPHA16: 3866 return MESA_FORMAT_AL1616; 3867 case GL_LUMINANCE_ALPHA16F_ARB: 3868 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3869 case GL_LUMINANCE_ALPHA32F_ARB: 3870 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3871 case GL_LUMINANCE_ALPHA8I_EXT: 3872 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3873 case GL_LUMINANCE_ALPHA16I_EXT: 3874 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3875 case GL_LUMINANCE_ALPHA32I_EXT: 3876 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3877 case GL_LUMINANCE_ALPHA8UI_EXT: 3878 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3879 case GL_LUMINANCE_ALPHA16UI_EXT: 3880 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3881 case GL_LUMINANCE_ALPHA32UI_EXT: 3882 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3883 case GL_INTENSITY8: 3884 return MESA_FORMAT_I8; 3885 case GL_INTENSITY16: 3886 return MESA_FORMAT_I16; 3887 case GL_INTENSITY16F_ARB: 3888 return MESA_FORMAT_INTENSITY_FLOAT16; 3889 case GL_INTENSITY32F_ARB: 3890 return MESA_FORMAT_INTENSITY_FLOAT32; 3891 case GL_INTENSITY8I_EXT: 3892 return MESA_FORMAT_INTENSITY_INT8; 3893 case GL_INTENSITY16I_EXT: 3894 return MESA_FORMAT_INTENSITY_INT16; 3895 case GL_INTENSITY32I_EXT: 3896 return MESA_FORMAT_INTENSITY_INT32; 3897 case GL_INTENSITY8UI_EXT: 3898 return MESA_FORMAT_INTENSITY_UINT8; 3899 case GL_INTENSITY16UI_EXT: 3900 return MESA_FORMAT_INTENSITY_UINT16; 3901 case GL_INTENSITY32UI_EXT: 3902 return MESA_FORMAT_INTENSITY_UINT32; 3903 case GL_RGBA8: 3904 return MESA_FORMAT_RGBA8888_REV; 3905 case GL_RGBA16: 3906 return MESA_FORMAT_RGBA_16; 3907 case GL_RGBA16F_ARB: 3908 return MESA_FORMAT_RGBA_FLOAT16; 3909 case GL_RGBA32F_ARB: 3910 return MESA_FORMAT_RGBA_FLOAT32; 3911 case GL_RGBA8I_EXT: 3912 return MESA_FORMAT_RGBA_INT8; 3913 case GL_RGBA16I_EXT: 3914 return MESA_FORMAT_RGBA_INT16; 3915 case GL_RGBA32I_EXT: 3916 return MESA_FORMAT_RGBA_INT32; 3917 case GL_RGBA8UI_EXT: 3918 return MESA_FORMAT_RGBA_UINT8; 3919 case GL_RGBA16UI_EXT: 3920 return MESA_FORMAT_RGBA_UINT16; 3921 case GL_RGBA32UI_EXT: 3922 return MESA_FORMAT_RGBA_UINT32; 3923 3924 case GL_RG8: 3925 return MESA_FORMAT_GR88; 3926 case GL_RG16: 3927 return MESA_FORMAT_RG1616; 3928 case GL_RG16F: 3929 return MESA_FORMAT_RG_FLOAT16; 3930 case GL_RG32F: 3931 return MESA_FORMAT_RG_FLOAT32; 3932 case GL_RG8I: 3933 return MESA_FORMAT_RG_INT8; 3934 case GL_RG16I: 3935 return MESA_FORMAT_RG_INT16; 3936 case GL_RG32I: 3937 return MESA_FORMAT_RG_INT32; 3938 case GL_RG8UI: 3939 return MESA_FORMAT_RG_UINT8; 3940 case GL_RG16UI: 3941 return MESA_FORMAT_RG_UINT16; 3942 case GL_RG32UI: 3943 return MESA_FORMAT_RG_UINT32; 3944 3945 case GL_R8: 3946 return MESA_FORMAT_R8; 3947 case GL_R16: 3948 return MESA_FORMAT_R16; 3949 case GL_R16F: 3950 return MESA_FORMAT_R_FLOAT16; 3951 case GL_R32F: 3952 return MESA_FORMAT_R_FLOAT32; 3953 case GL_R8I: 3954 return MESA_FORMAT_R_INT8; 3955 case GL_R16I: 3956 return MESA_FORMAT_R_INT16; 3957 case GL_R32I: 3958 return MESA_FORMAT_R_INT32; 3959 case GL_R8UI: 3960 return MESA_FORMAT_R_UINT8; 3961 case GL_R16UI: 3962 return MESA_FORMAT_R_UINT16; 3963 case GL_R32UI: 3964 return MESA_FORMAT_R_UINT32; 3965 3966 default: 3967 return MESA_FORMAT_NONE; 3968 } 3969} 3970 3971static gl_format 3972validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3973{ 3974 gl_format format = get_texbuffer_format(ctx, internalFormat); 3975 GLenum datatype; 3976 3977 if (format == MESA_FORMAT_NONE) 3978 return MESA_FORMAT_NONE; 3979 3980 datatype = _mesa_get_format_datatype(format); 3981 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3982 return MESA_FORMAT_NONE; 3983 3984 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3985 return MESA_FORMAT_NONE; 3986 3987 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3988 * any mention of R/RG formats, but they appear in the GL 3.1 core 3989 * specification. 3990 */ 3991 if (ctx->Version <= 30) { 3992 GLenum base_format = _mesa_get_format_base_format(format); 3993 3994 if (base_format == GL_R || base_format == GL_RG) 3995 return MESA_FORMAT_NONE; 3996 } 3997 return format; 3998} 3999 4000 4001/** GL_ARB_texture_buffer_object */ 4002void GLAPIENTRY 4003_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 4004{ 4005 struct gl_texture_object *texObj; 4006 struct gl_buffer_object *bufObj; 4007 gl_format format; 4008 4009 GET_CURRENT_CONTEXT(ctx); 4010 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 4011 4012 if (!(ctx->Extensions.ARB_texture_buffer_object 4013 && _mesa_is_desktop_gl(ctx))) { 4014 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 4015 return; 4016 } 4017 4018 if (target != GL_TEXTURE_BUFFER_ARB) { 4019 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 4020 return; 4021 } 4022 4023 format = validate_texbuffer_format(ctx, internalFormat); 4024 if (format == MESA_FORMAT_NONE) { 4025 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 4026 internalFormat); 4027 return; 4028 } 4029 4030 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 4031 if (buffer && !bufObj) { 4032 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 4033 return; 4034 } 4035 4036 texObj = _mesa_get_current_tex_object(ctx, target); 4037 4038 _mesa_lock_texture(ctx, texObj); 4039 { 4040 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 4041 texObj->BufferObjectFormat = internalFormat; 4042 texObj->_BufferObjectFormat = format; 4043 } 4044 _mesa_unlock_texture(ctx, texObj); 4045} 4046