teximage.c revision c5af8891805fc4f590c1371c098cdbc704c44e00
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 32#include "glheader.h" 33#include "bufferobj.h" 34#include "context.h" 35#include "enums.h" 36#include "fbobject.h" 37#include "framebuffer.h" 38#include "hash.h" 39#include "image.h" 40#include "imports.h" 41#include "macros.h" 42#include "mfeatures.h" 43#include "state.h" 44#include "texcompress.h" 45#include "teximage.h" 46#include "texobj.h" 47#include "texstate.h" 48#include "texpal.h" 49#include "mtypes.h" 50#include "glformats.h" 51 52 53/** 54 * State changes which we care about for glCopyTex[Sub]Image() calls. 55 * In particular, we care about pixel transfer state and buffer state 56 * (such as glReadBuffer to make sure we read from the right renderbuffer). 57 */ 58#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL) 59 60 61 62/** 63 * Return the simple base format for a given internal texture format. 64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. 65 * 66 * \param ctx GL context. 67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4. 68 * 69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, 70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. 71 * 72 * This is the format which is used during texture application (i.e. the 73 * texture format and env mode determine the arithmetic used. 74 */ 75GLint 76_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat ) 77{ 78 switch (internalFormat) { 79 case GL_ALPHA: 80 case GL_ALPHA4: 81 case GL_ALPHA8: 82 case GL_ALPHA12: 83 case GL_ALPHA16: 84 return GL_ALPHA; 85 case 1: 86 case GL_LUMINANCE: 87 case GL_LUMINANCE4: 88 case GL_LUMINANCE8: 89 case GL_LUMINANCE12: 90 case GL_LUMINANCE16: 91 return GL_LUMINANCE; 92 case 2: 93 case GL_LUMINANCE_ALPHA: 94 case GL_LUMINANCE4_ALPHA4: 95 case GL_LUMINANCE6_ALPHA2: 96 case GL_LUMINANCE8_ALPHA8: 97 case GL_LUMINANCE12_ALPHA4: 98 case GL_LUMINANCE12_ALPHA12: 99 case GL_LUMINANCE16_ALPHA16: 100 return GL_LUMINANCE_ALPHA; 101 case GL_INTENSITY: 102 case GL_INTENSITY4: 103 case GL_INTENSITY8: 104 case GL_INTENSITY12: 105 case GL_INTENSITY16: 106 return GL_INTENSITY; 107 case 3: 108 case GL_RGB: 109 case GL_R3_G3_B2: 110 case GL_RGB4: 111 case GL_RGB5: 112 case GL_RGB8: 113 case GL_RGB10: 114 case GL_RGB12: 115 case GL_RGB16: 116 return GL_RGB; 117 case 4: 118 case GL_RGBA: 119 case GL_RGBA2: 120 case GL_RGBA4: 121 case GL_RGB5_A1: 122 case GL_RGBA8: 123 case GL_RGB10_A2: 124 case GL_RGBA12: 125 case GL_RGBA16: 126 return GL_RGBA; 127 default: 128 ; /* fallthrough */ 129 } 130 131 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). 132 */ 133 if (_mesa_is_gles(ctx)) { 134 switch (internalFormat) { 135 case GL_BGRA: 136 return GL_RGBA; 137 default: 138 ; /* fallthrough */ 139 } 140 } 141 142 if (ctx->Extensions.ARB_ES2_compatibility) { 143 switch (internalFormat) { 144 case GL_RGB565: 145 return GL_RGB; 146 default: 147 ; /* fallthrough */ 148 } 149 } 150 151 if (ctx->Extensions.ARB_depth_texture) { 152 switch (internalFormat) { 153 case GL_DEPTH_COMPONENT: 154 case GL_DEPTH_COMPONENT16: 155 case GL_DEPTH_COMPONENT24: 156 case GL_DEPTH_COMPONENT32: 157 return GL_DEPTH_COMPONENT; 158 default: 159 ; /* fallthrough */ 160 } 161 } 162 163 switch (internalFormat) { 164 case GL_COMPRESSED_ALPHA: 165 return GL_ALPHA; 166 case GL_COMPRESSED_LUMINANCE: 167 return GL_LUMINANCE; 168 case GL_COMPRESSED_LUMINANCE_ALPHA: 169 return GL_LUMINANCE_ALPHA; 170 case GL_COMPRESSED_INTENSITY: 171 return GL_INTENSITY; 172 case GL_COMPRESSED_RGB: 173 return GL_RGB; 174 case GL_COMPRESSED_RGBA: 175 return GL_RGBA; 176 default: 177 ; /* fallthrough */ 178 } 179 180 if (ctx->Extensions.TDFX_texture_compression_FXT1) { 181 switch (internalFormat) { 182 case GL_COMPRESSED_RGB_FXT1_3DFX: 183 return GL_RGB; 184 case GL_COMPRESSED_RGBA_FXT1_3DFX: 185 return GL_RGBA; 186 default: 187 ; /* fallthrough */ 188 } 189 } 190 191 if (ctx->Extensions.EXT_texture_compression_s3tc) { 192 switch (internalFormat) { 193 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 194 return GL_RGB; 195 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 196 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 197 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 198 return GL_RGBA; 199 default: 200 ; /* fallthrough */ 201 } 202 } 203 204 if (ctx->Extensions.S3_s3tc) { 205 switch (internalFormat) { 206 case GL_RGB_S3TC: 207 case GL_RGB4_S3TC: 208 return GL_RGB; 209 case GL_RGBA_S3TC: 210 case GL_RGBA4_S3TC: 211 return GL_RGBA; 212 default: 213 ; /* fallthrough */ 214 } 215 } 216 217 if (ctx->Extensions.MESA_ycbcr_texture) { 218 if (internalFormat == GL_YCBCR_MESA) 219 return GL_YCBCR_MESA; 220 } 221 222 if (ctx->Extensions.ARB_texture_float) { 223 switch (internalFormat) { 224 case GL_ALPHA16F_ARB: 225 case GL_ALPHA32F_ARB: 226 return GL_ALPHA; 227 case GL_RGBA16F_ARB: 228 case GL_RGBA32F_ARB: 229 return GL_RGBA; 230 case GL_RGB16F_ARB: 231 case GL_RGB32F_ARB: 232 return GL_RGB; 233 case GL_INTENSITY16F_ARB: 234 case GL_INTENSITY32F_ARB: 235 return GL_INTENSITY; 236 case GL_LUMINANCE16F_ARB: 237 case GL_LUMINANCE32F_ARB: 238 return GL_LUMINANCE; 239 case GL_LUMINANCE_ALPHA16F_ARB: 240 case GL_LUMINANCE_ALPHA32F_ARB: 241 return GL_LUMINANCE_ALPHA; 242 default: 243 ; /* fallthrough */ 244 } 245 } 246 247 if (ctx->Extensions.ATI_envmap_bumpmap) { 248 switch (internalFormat) { 249 case GL_DUDV_ATI: 250 case GL_DU8DV8_ATI: 251 return GL_DUDV_ATI; 252 default: 253 ; /* fallthrough */ 254 } 255 } 256 257 if (ctx->Extensions.EXT_texture_snorm) { 258 switch (internalFormat) { 259 case GL_RED_SNORM: 260 case GL_R8_SNORM: 261 case GL_R16_SNORM: 262 return GL_RED; 263 case GL_RG_SNORM: 264 case GL_RG8_SNORM: 265 case GL_RG16_SNORM: 266 return GL_RG; 267 case GL_RGB_SNORM: 268 case GL_RGB8_SNORM: 269 case GL_RGB16_SNORM: 270 return GL_RGB; 271 case GL_RGBA_SNORM: 272 case GL_RGBA8_SNORM: 273 case GL_RGBA16_SNORM: 274 return GL_RGBA; 275 case GL_ALPHA_SNORM: 276 case GL_ALPHA8_SNORM: 277 case GL_ALPHA16_SNORM: 278 return GL_ALPHA; 279 case GL_LUMINANCE_SNORM: 280 case GL_LUMINANCE8_SNORM: 281 case GL_LUMINANCE16_SNORM: 282 return GL_LUMINANCE; 283 case GL_LUMINANCE_ALPHA_SNORM: 284 case GL_LUMINANCE8_ALPHA8_SNORM: 285 case GL_LUMINANCE16_ALPHA16_SNORM: 286 return GL_LUMINANCE_ALPHA; 287 case GL_INTENSITY_SNORM: 288 case GL_INTENSITY8_SNORM: 289 case GL_INTENSITY16_SNORM: 290 return GL_INTENSITY; 291 default: 292 ; /* fallthrough */ 293 } 294 } 295 296 if (ctx->Extensions.EXT_packed_depth_stencil) { 297 switch (internalFormat) { 298 case GL_DEPTH_STENCIL_EXT: 299 case GL_DEPTH24_STENCIL8_EXT: 300 return GL_DEPTH_STENCIL_EXT; 301 default: 302 ; /* fallthrough */ 303 } 304 } 305 306#if FEATURE_EXT_texture_sRGB 307 if (ctx->Extensions.EXT_texture_sRGB) { 308 switch (internalFormat) { 309 case GL_SRGB_EXT: 310 case GL_SRGB8_EXT: 311 case GL_COMPRESSED_SRGB_EXT: 312 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: 313 return GL_RGB; 314 case GL_SRGB_ALPHA_EXT: 315 case GL_SRGB8_ALPHA8_EXT: 316 case GL_COMPRESSED_SRGB_ALPHA_EXT: 317 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 318 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 319 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 320 return GL_RGBA; 321 case GL_SLUMINANCE_ALPHA_EXT: 322 case GL_SLUMINANCE8_ALPHA8_EXT: 323 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 324 return GL_LUMINANCE_ALPHA; 325 case GL_SLUMINANCE_EXT: 326 case GL_SLUMINANCE8_EXT: 327 case GL_COMPRESSED_SLUMINANCE_EXT: 328 return GL_LUMINANCE; 329 default: 330 ; /* fallthrough */ 331 } 332 } 333#endif /* FEATURE_EXT_texture_sRGB */ 334 335 if (ctx->Version >= 30 || 336 ctx->Extensions.EXT_texture_integer) { 337 switch (internalFormat) { 338 case GL_RGBA8UI_EXT: 339 case GL_RGBA16UI_EXT: 340 case GL_RGBA32UI_EXT: 341 case GL_RGBA8I_EXT: 342 case GL_RGBA16I_EXT: 343 case GL_RGBA32I_EXT: 344 case GL_RGB10_A2UI: 345 return GL_RGBA; 346 case GL_RGB8UI_EXT: 347 case GL_RGB16UI_EXT: 348 case GL_RGB32UI_EXT: 349 case GL_RGB8I_EXT: 350 case GL_RGB16I_EXT: 351 case GL_RGB32I_EXT: 352 return GL_RGB; 353 } 354 } 355 356 if (ctx->Extensions.EXT_texture_integer) { 357 switch (internalFormat) { 358 case GL_ALPHA8UI_EXT: 359 case GL_ALPHA16UI_EXT: 360 case GL_ALPHA32UI_EXT: 361 case GL_ALPHA8I_EXT: 362 case GL_ALPHA16I_EXT: 363 case GL_ALPHA32I_EXT: 364 return GL_ALPHA; 365 case GL_INTENSITY8UI_EXT: 366 case GL_INTENSITY16UI_EXT: 367 case GL_INTENSITY32UI_EXT: 368 case GL_INTENSITY8I_EXT: 369 case GL_INTENSITY16I_EXT: 370 case GL_INTENSITY32I_EXT: 371 return GL_INTENSITY; 372 case GL_LUMINANCE8UI_EXT: 373 case GL_LUMINANCE16UI_EXT: 374 case GL_LUMINANCE32UI_EXT: 375 case GL_LUMINANCE8I_EXT: 376 case GL_LUMINANCE16I_EXT: 377 case GL_LUMINANCE32I_EXT: 378 return GL_LUMINANCE; 379 case GL_LUMINANCE_ALPHA8UI_EXT: 380 case GL_LUMINANCE_ALPHA16UI_EXT: 381 case GL_LUMINANCE_ALPHA32UI_EXT: 382 case GL_LUMINANCE_ALPHA8I_EXT: 383 case GL_LUMINANCE_ALPHA16I_EXT: 384 case GL_LUMINANCE_ALPHA32I_EXT: 385 return GL_LUMINANCE_ALPHA; 386 default: 387 ; /* fallthrough */ 388 } 389 } 390 391 if (ctx->Extensions.ARB_texture_rg) { 392 switch (internalFormat) { 393 case GL_R16F: 394 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float. 395 */ 396 if (!ctx->Extensions.ARB_half_float_pixel) 397 break; 398 /* FALLTHROUGH */ 399 case GL_R32F: 400 if (!ctx->Extensions.ARB_texture_float) 401 break; 402 return GL_RED; 403 case GL_R8I: 404 case GL_R8UI: 405 case GL_R16I: 406 case GL_R16UI: 407 case GL_R32I: 408 case GL_R32UI: 409 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 410 break; 411 /* FALLTHROUGH */ 412 case GL_R8: 413 case GL_R16: 414 case GL_RED: 415 case GL_COMPRESSED_RED: 416 return GL_RED; 417 418 case GL_RG16F: 419 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float. 420 */ 421 if (!ctx->Extensions.ARB_half_float_pixel) 422 break; 423 /* FALLTHROUGH */ 424 case GL_RG32F: 425 if (!ctx->Extensions.ARB_texture_float) 426 break; 427 return GL_RG; 428 case GL_RG8I: 429 case GL_RG8UI: 430 case GL_RG16I: 431 case GL_RG16UI: 432 case GL_RG32I: 433 case GL_RG32UI: 434 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 435 break; 436 /* FALLTHROUGH */ 437 case GL_RG: 438 case GL_RG8: 439 case GL_RG16: 440 case GL_COMPRESSED_RG: 441 return GL_RG; 442 default: 443 ; /* fallthrough */ 444 } 445 } 446 447 if (ctx->Extensions.EXT_texture_shared_exponent) { 448 switch (internalFormat) { 449 case GL_RGB9_E5_EXT: 450 return GL_RGB; 451 default: 452 ; /* fallthrough */ 453 } 454 } 455 456 if (ctx->Extensions.EXT_packed_float) { 457 switch (internalFormat) { 458 case GL_R11F_G11F_B10F_EXT: 459 return GL_RGB; 460 default: 461 ; /* fallthrough */ 462 } 463 } 464 465 if (ctx->Extensions.ARB_depth_buffer_float) { 466 switch (internalFormat) { 467 case GL_DEPTH_COMPONENT32F: 468 return GL_DEPTH_COMPONENT; 469 case GL_DEPTH32F_STENCIL8: 470 return GL_DEPTH_STENCIL; 471 default: 472 ; /* fallthrough */ 473 } 474 } 475 476 if (ctx->Extensions.ARB_texture_compression_rgtc) { 477 switch (internalFormat) { 478 case GL_COMPRESSED_RED_RGTC1: 479 case GL_COMPRESSED_SIGNED_RED_RGTC1: 480 return GL_RED; 481 case GL_COMPRESSED_RG_RGTC2: 482 case GL_COMPRESSED_SIGNED_RG_RGTC2: 483 return GL_RG; 484 default: 485 ; /* fallthrough */ 486 } 487 } 488 489 if (ctx->Extensions.EXT_texture_compression_latc) { 490 switch (internalFormat) { 491 case GL_COMPRESSED_LUMINANCE_LATC1_EXT: 492 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: 493 return GL_LUMINANCE; 494 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: 495 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: 496 return GL_LUMINANCE_ALPHA; 497 default: 498 ; /* fallthrough */ 499 } 500 } 501 502 if (ctx->Extensions.ATI_texture_compression_3dc) { 503 switch (internalFormat) { 504 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: 505 return GL_LUMINANCE_ALPHA; 506 default: 507 ; /* fallthrough */ 508 } 509 } 510 511 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) { 512 switch (internalFormat) { 513 case GL_ETC1_RGB8_OES: 514 return GL_RGB; 515 default: 516 ; /* fallthrough */ 517 } 518 } 519 520 if (ctx->API == API_OPENGLES) { 521 switch (internalFormat) { 522 case GL_PALETTE4_RGB8_OES: 523 case GL_PALETTE4_R5_G6_B5_OES: 524 case GL_PALETTE8_RGB8_OES: 525 case GL_PALETTE8_R5_G6_B5_OES: 526 return GL_RGB; 527 case GL_PALETTE4_RGBA8_OES: 528 case GL_PALETTE8_RGB5_A1_OES: 529 case GL_PALETTE4_RGBA4_OES: 530 case GL_PALETTE4_RGB5_A1_OES: 531 case GL_PALETTE8_RGBA8_OES: 532 case GL_PALETTE8_RGBA4_OES: 533 return GL_RGBA; 534 default: 535 ; /* fallthrough */ 536 } 537 } 538 539 return -1; /* error */ 540} 541 542 543/** 544 * Is the given texture format a generic compressed format? 545 */ 546static GLboolean 547is_generic_compressed_format(GLenum format) 548{ 549 switch (format) { 550 case GL_COMPRESSED_RED: 551 case GL_COMPRESSED_RG: 552 case GL_COMPRESSED_RGB: 553 case GL_COMPRESSED_RGBA: 554 case GL_COMPRESSED_ALPHA: 555 case GL_COMPRESSED_LUMINANCE: 556 case GL_COMPRESSED_LUMINANCE_ALPHA: 557 case GL_COMPRESSED_INTENSITY: 558 case GL_COMPRESSED_SRGB: 559 case GL_COMPRESSED_SRGB_ALPHA: 560 case GL_COMPRESSED_SLUMINANCE: 561 case GL_COMPRESSED_SLUMINANCE_ALPHA: 562 return GL_TRUE; 563 default: 564 return GL_FALSE; 565 } 566} 567 568 569/** 570 * For cube map faces, return a face index in [0,5]. 571 * For other targets return 0; 572 */ 573GLuint 574_mesa_tex_target_to_face(GLenum target) 575{ 576 if (_mesa_is_cube_face(target)) 577 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 578 else 579 return 0; 580} 581 582 583 584/** 585 * Install gl_texture_image in a gl_texture_object according to the target 586 * and level parameters. 587 * 588 * \param tObj texture object. 589 * \param target texture target. 590 * \param level image level. 591 * \param texImage texture image. 592 */ 593static void 594set_tex_image(struct gl_texture_object *tObj, 595 GLenum target, GLint level, 596 struct gl_texture_image *texImage) 597{ 598 const GLuint face = _mesa_tex_target_to_face(target); 599 600 ASSERT(tObj); 601 ASSERT(texImage); 602 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES) 603 assert(level == 0); 604 605 tObj->Image[face][level] = texImage; 606 607 /* Set the 'back' pointer */ 608 texImage->TexObject = tObj; 609 texImage->Level = level; 610 texImage->Face = face; 611} 612 613 614/** 615 * Allocate a texture image structure. 616 * 617 * Called via ctx->Driver.NewTextureImage() unless overriden by a device 618 * driver. 619 * 620 * \return a pointer to gl_texture_image struct with all fields initialized to 621 * zero. 622 */ 623struct gl_texture_image * 624_mesa_new_texture_image( struct gl_context *ctx ) 625{ 626 (void) ctx; 627 return CALLOC_STRUCT(gl_texture_image); 628} 629 630 631/** 632 * Free a gl_texture_image and associated data. 633 * This function is a fallback called via ctx->Driver.DeleteTextureImage(). 634 * 635 * \param texImage texture image. 636 * 637 * Free the texture image structure and the associated image data. 638 */ 639void 640_mesa_delete_texture_image(struct gl_context *ctx, 641 struct gl_texture_image *texImage) 642{ 643 /* Free texImage->Data and/or any other driver-specific texture 644 * image storage. 645 */ 646 ASSERT(ctx->Driver.FreeTextureImageBuffer); 647 ctx->Driver.FreeTextureImageBuffer( ctx, texImage ); 648 free(texImage); 649} 650 651 652/** 653 * Test if a target is a proxy target. 654 * 655 * \param target texture target. 656 * 657 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. 658 */ 659GLboolean 660_mesa_is_proxy_texture(GLenum target) 661{ 662 /* 663 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no 664 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES. 665 */ 666 assert(NUM_TEXTURE_TARGETS == 7 + 2); 667 668 return (target == GL_PROXY_TEXTURE_1D || 669 target == GL_PROXY_TEXTURE_2D || 670 target == GL_PROXY_TEXTURE_3D || 671 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB || 672 target == GL_PROXY_TEXTURE_RECTANGLE_NV || 673 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT || 674 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT); 675} 676 677 678/** 679 * Return the proxy target which corresponds to the given texture target 680 */ 681static GLenum 682get_proxy_target(GLenum target) 683{ 684 switch (target) { 685 case GL_TEXTURE_1D: 686 case GL_PROXY_TEXTURE_1D: 687 return GL_PROXY_TEXTURE_1D; 688 case GL_TEXTURE_2D: 689 case GL_PROXY_TEXTURE_2D: 690 return GL_PROXY_TEXTURE_2D; 691 case GL_TEXTURE_3D: 692 case GL_PROXY_TEXTURE_3D: 693 return GL_PROXY_TEXTURE_3D; 694 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 695 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 696 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 697 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 698 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 699 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 700 case GL_TEXTURE_CUBE_MAP_ARB: 701 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 702 return GL_PROXY_TEXTURE_CUBE_MAP_ARB; 703 case GL_TEXTURE_RECTANGLE_NV: 704 case GL_PROXY_TEXTURE_RECTANGLE_NV: 705 return GL_PROXY_TEXTURE_RECTANGLE_NV; 706 case GL_TEXTURE_1D_ARRAY_EXT: 707 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 708 return GL_PROXY_TEXTURE_1D_ARRAY_EXT; 709 case GL_TEXTURE_2D_ARRAY_EXT: 710 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 711 return GL_PROXY_TEXTURE_2D_ARRAY_EXT; 712 default: 713 _mesa_problem(NULL, "unexpected target in get_proxy_target()"); 714 return 0; 715 } 716} 717 718 719/** 720 * Get the texture object that corresponds to the target of the given 721 * texture unit. The target should have already been checked for validity. 722 * 723 * \param ctx GL context. 724 * \param texUnit texture unit. 725 * \param target texture target. 726 * 727 * \return pointer to the texture object on success, or NULL on failure. 728 */ 729struct gl_texture_object * 730_mesa_select_tex_object(struct gl_context *ctx, 731 const struct gl_texture_unit *texUnit, 732 GLenum target) 733{ 734 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array || 735 ctx->Extensions.EXT_texture_array); 736 737 switch (target) { 738 case GL_TEXTURE_1D: 739 return texUnit->CurrentTex[TEXTURE_1D_INDEX]; 740 case GL_PROXY_TEXTURE_1D: 741 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]; 742 case GL_TEXTURE_2D: 743 return texUnit->CurrentTex[TEXTURE_2D_INDEX]; 744 case GL_PROXY_TEXTURE_2D: 745 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]; 746 case GL_TEXTURE_3D: 747 return texUnit->CurrentTex[TEXTURE_3D_INDEX]; 748 case GL_PROXY_TEXTURE_3D: 749 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]; 750 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 751 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 752 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 753 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 754 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 755 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 756 case GL_TEXTURE_CUBE_MAP_ARB: 757 return ctx->Extensions.ARB_texture_cube_map 758 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL; 759 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 760 return ctx->Extensions.ARB_texture_cube_map 761 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL; 762 case GL_TEXTURE_RECTANGLE_NV: 763 return ctx->Extensions.NV_texture_rectangle 764 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL; 765 case GL_PROXY_TEXTURE_RECTANGLE_NV: 766 return ctx->Extensions.NV_texture_rectangle 767 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL; 768 case GL_TEXTURE_1D_ARRAY_EXT: 769 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 770 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 771 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 772 case GL_TEXTURE_2D_ARRAY_EXT: 773 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 774 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 775 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 776 case GL_TEXTURE_BUFFER: 777 return ctx->Extensions.ARB_texture_buffer_object 778 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL; 779 case GL_TEXTURE_EXTERNAL_OES: 780 return ctx->Extensions.OES_EGL_image_external 781 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL; 782 default: 783 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); 784 return NULL; 785 } 786} 787 788 789/** 790 * Return pointer to texture object for given target on current texture unit. 791 */ 792struct gl_texture_object * 793_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target) 794{ 795 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 796 return _mesa_select_tex_object(ctx, texUnit, target); 797} 798 799 800/** 801 * Get a texture image pointer from a texture object, given a texture 802 * target and mipmap level. The target and level parameters should 803 * have already been error-checked. 804 * 805 * \param ctx GL context. 806 * \param texObj texture unit. 807 * \param target texture target. 808 * \param level image level. 809 * 810 * \return pointer to the texture image structure, or NULL on failure. 811 */ 812struct gl_texture_image * 813_mesa_select_tex_image(struct gl_context *ctx, 814 const struct gl_texture_object *texObj, 815 GLenum target, GLint level) 816{ 817 const GLuint face = _mesa_tex_target_to_face(target); 818 819 ASSERT(texObj); 820 ASSERT(level >= 0); 821 ASSERT(level < MAX_TEXTURE_LEVELS); 822 823 return texObj->Image[face][level]; 824} 825 826 827/** 828 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate 829 * it and install it. Only return NULL if passed a bad parameter or run 830 * out of memory. 831 */ 832struct gl_texture_image * 833_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj, 834 GLenum target, GLint level) 835{ 836 struct gl_texture_image *texImage; 837 838 if (!texObj) 839 return NULL; 840 841 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 842 if (!texImage) { 843 texImage = ctx->Driver.NewTextureImage(ctx); 844 if (!texImage) { 845 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation"); 846 return NULL; 847 } 848 849 set_tex_image(texObj, target, level, texImage); 850 } 851 852 return texImage; 853} 854 855 856/** 857 * Return pointer to the specified proxy texture image. 858 * Note that proxy textures are per-context, not per-texture unit. 859 * \return pointer to texture image or NULL if invalid target, invalid 860 * level, or out of memory. 861 */ 862struct gl_texture_image * 863_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level) 864{ 865 struct gl_texture_image *texImage; 866 GLuint texIndex; 867 868 if (level < 0) 869 return NULL; 870 871 switch (target) { 872 case GL_PROXY_TEXTURE_1D: 873 if (level >= ctx->Const.MaxTextureLevels) 874 return NULL; 875 texIndex = TEXTURE_1D_INDEX; 876 break; 877 case GL_PROXY_TEXTURE_2D: 878 if (level >= ctx->Const.MaxTextureLevels) 879 return NULL; 880 texIndex = TEXTURE_2D_INDEX; 881 break; 882 case GL_PROXY_TEXTURE_3D: 883 if (level >= ctx->Const.Max3DTextureLevels) 884 return NULL; 885 texIndex = TEXTURE_3D_INDEX; 886 break; 887 case GL_PROXY_TEXTURE_CUBE_MAP: 888 if (level >= ctx->Const.MaxCubeTextureLevels) 889 return NULL; 890 texIndex = TEXTURE_CUBE_INDEX; 891 break; 892 case GL_PROXY_TEXTURE_RECTANGLE_NV: 893 if (level > 0) 894 return NULL; 895 texIndex = TEXTURE_RECT_INDEX; 896 break; 897 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 898 if (level >= ctx->Const.MaxTextureLevels) 899 return NULL; 900 texIndex = TEXTURE_1D_ARRAY_INDEX; 901 break; 902 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 903 if (level >= ctx->Const.MaxTextureLevels) 904 return NULL; 905 texIndex = TEXTURE_2D_ARRAY_INDEX; 906 break; 907 default: 908 return NULL; 909 } 910 911 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level]; 912 if (!texImage) { 913 texImage = ctx->Driver.NewTextureImage(ctx); 914 if (!texImage) { 915 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation"); 916 return NULL; 917 } 918 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage; 919 /* Set the 'back' pointer */ 920 texImage->TexObject = ctx->Texture.ProxyTex[texIndex]; 921 } 922 return texImage; 923} 924 925 926/** 927 * Get the maximum number of allowed mipmap levels. 928 * 929 * \param ctx GL context. 930 * \param target texture target. 931 * 932 * \return the maximum number of allowed mipmap levels for the given 933 * texture target, or zero if passed a bad target. 934 * 935 * \sa gl_constants. 936 */ 937GLint 938_mesa_max_texture_levels(struct gl_context *ctx, GLenum target) 939{ 940 switch (target) { 941 case GL_TEXTURE_1D: 942 case GL_PROXY_TEXTURE_1D: 943 case GL_TEXTURE_2D: 944 case GL_PROXY_TEXTURE_2D: 945 return ctx->Const.MaxTextureLevels; 946 case GL_TEXTURE_3D: 947 case GL_PROXY_TEXTURE_3D: 948 return ctx->Const.Max3DTextureLevels; 949 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 950 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 951 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 952 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 953 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 954 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 955 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 956 return ctx->Extensions.ARB_texture_cube_map 957 ? ctx->Const.MaxCubeTextureLevels : 0; 958 case GL_TEXTURE_RECTANGLE_NV: 959 case GL_PROXY_TEXTURE_RECTANGLE_NV: 960 return ctx->Extensions.NV_texture_rectangle ? 1 : 0; 961 case GL_TEXTURE_1D_ARRAY_EXT: 962 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 963 case GL_TEXTURE_2D_ARRAY_EXT: 964 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 965 return (ctx->Extensions.MESA_texture_array || 966 ctx->Extensions.EXT_texture_array) 967 ? ctx->Const.MaxTextureLevels : 0; 968 case GL_TEXTURE_BUFFER: 969 case GL_TEXTURE_EXTERNAL_OES: 970 /* fall-through */ 971 default: 972 return 0; /* bad target */ 973 } 974} 975 976 977/** 978 * Return number of dimensions per mipmap level for the given texture target. 979 */ 980GLint 981_mesa_get_texture_dimensions(GLenum target) 982{ 983 switch (target) { 984 case GL_TEXTURE_1D: 985 case GL_PROXY_TEXTURE_1D: 986 return 1; 987 case GL_TEXTURE_2D: 988 case GL_TEXTURE_RECTANGLE: 989 case GL_TEXTURE_CUBE_MAP: 990 case GL_PROXY_TEXTURE_2D: 991 case GL_PROXY_TEXTURE_RECTANGLE: 992 case GL_PROXY_TEXTURE_CUBE_MAP: 993 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 994 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 995 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 996 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 997 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 998 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 999 case GL_TEXTURE_1D_ARRAY: 1000 case GL_PROXY_TEXTURE_1D_ARRAY: 1001 case GL_TEXTURE_EXTERNAL_OES: 1002 return 2; 1003 case GL_TEXTURE_3D: 1004 case GL_PROXY_TEXTURE_3D: 1005 case GL_TEXTURE_2D_ARRAY: 1006 case GL_PROXY_TEXTURE_2D_ARRAY: 1007 return 3; 1008 case GL_TEXTURE_BUFFER: 1009 /* fall-through */ 1010 default: 1011 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", 1012 target); 1013 return 2; 1014 } 1015} 1016 1017 1018 1019 1020#if 000 /* not used anymore */ 1021/* 1022 * glTexImage[123]D can accept a NULL image pointer. In this case we 1023 * create a texture image with unspecified image contents per the OpenGL 1024 * spec. 1025 */ 1026static GLubyte * 1027make_null_texture(GLint width, GLint height, GLint depth, GLenum format) 1028{ 1029 const GLint components = _mesa_components_in_format(format); 1030 const GLint numPixels = width * height * depth; 1031 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); 1032 1033#ifdef DEBUG 1034 /* 1035 * Let's see if anyone finds this. If glTexImage2D() is called with 1036 * a NULL image pointer then load the texture image with something 1037 * interesting instead of leaving it indeterminate. 1038 */ 1039 if (data) { 1040 static const char message[8][32] = { 1041 " X X XXXXX XXX X ", 1042 " XX XX X X X X X ", 1043 " X X X X X X X ", 1044 " X X XXXX XXX XXXXX ", 1045 " X X X X X X ", 1046 " X X X X X X X ", 1047 " X X XXXXX XXX X X ", 1048 " " 1049 }; 1050 1051 GLubyte *imgPtr = data; 1052 GLint h, i, j, k; 1053 for (h = 0; h < depth; h++) { 1054 for (i = 0; i < height; i++) { 1055 GLint srcRow = 7 - (i % 8); 1056 for (j = 0; j < width; j++) { 1057 GLint srcCol = j % 32; 1058 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 1059 for (k = 0; k < components; k++) { 1060 *imgPtr++ = texel; 1061 } 1062 } 1063 } 1064 } 1065 } 1066#endif 1067 1068 return data; 1069} 1070#endif 1071 1072 1073 1074/** 1075 * Set the size and format-related fields of a gl_texture_image struct 1076 * to zero. This is used when a proxy texture test fails. 1077 */ 1078static void 1079clear_teximage_fields(struct gl_texture_image *img) 1080{ 1081 ASSERT(img); 1082 img->_BaseFormat = 0; 1083 img->InternalFormat = 0; 1084 img->Border = 0; 1085 img->Width = 0; 1086 img->Height = 0; 1087 img->Depth = 0; 1088 img->Width2 = 0; 1089 img->Height2 = 0; 1090 img->Depth2 = 0; 1091 img->WidthLog2 = 0; 1092 img->HeightLog2 = 0; 1093 img->DepthLog2 = 0; 1094 img->TexFormat = MESA_FORMAT_NONE; 1095} 1096 1097 1098/** 1099 * Initialize basic fields of the gl_texture_image struct. 1100 * 1101 * \param ctx GL context. 1102 * \param img texture image structure to be initialized. 1103 * \param width image width. 1104 * \param height image height. 1105 * \param depth image depth. 1106 * \param border image border. 1107 * \param internalFormat internal format. 1108 * \param format the actual hardware format (one of MESA_FORMAT_*) 1109 * 1110 * Fills in the fields of \p img with the given information. 1111 * Note: width, height and depth include the border. 1112 */ 1113void 1114_mesa_init_teximage_fields(struct gl_context *ctx, 1115 struct gl_texture_image *img, 1116 GLsizei width, GLsizei height, GLsizei depth, 1117 GLint border, GLenum internalFormat, 1118 gl_format format) 1119{ 1120 GLenum target; 1121 ASSERT(img); 1122 ASSERT(width >= 0); 1123 ASSERT(height >= 0); 1124 ASSERT(depth >= 0); 1125 1126 target = img->TexObject->Target; 1127 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); 1128 ASSERT(img->_BaseFormat > 0); 1129 img->InternalFormat = internalFormat; 1130 img->Border = border; 1131 img->Width = width; 1132 img->Height = height; 1133 img->Depth = depth; 1134 1135 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ 1136 img->WidthLog2 = _mesa_logbase2(img->Width2); 1137 1138 switch(target) { 1139 case GL_TEXTURE_1D: 1140 case GL_TEXTURE_BUFFER: 1141 case GL_PROXY_TEXTURE_1D: 1142 if (height == 0) 1143 img->Height2 = 0; 1144 else 1145 img->Height2 = 1; 1146 img->HeightLog2 = 0; 1147 if (depth == 0) 1148 img->Depth2 = 0; 1149 else 1150 img->Depth2 = 1; 1151 img->DepthLog2 = 0; 1152 break; 1153 case GL_TEXTURE_1D_ARRAY: 1154 case GL_PROXY_TEXTURE_1D_ARRAY: 1155 img->Height2 = height; /* no border */ 1156 img->HeightLog2 = 0; /* not used */ 1157 if (depth == 0) 1158 img->Depth2 = 0; 1159 else 1160 img->Depth2 = 1; 1161 img->DepthLog2 = 0; 1162 break; 1163 case GL_TEXTURE_2D: 1164 case GL_TEXTURE_RECTANGLE: 1165 case GL_TEXTURE_CUBE_MAP: 1166 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1167 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1168 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1169 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1170 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1171 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1172 case GL_TEXTURE_EXTERNAL_OES: 1173 case GL_PROXY_TEXTURE_2D: 1174 case GL_PROXY_TEXTURE_RECTANGLE: 1175 case GL_PROXY_TEXTURE_CUBE_MAP: 1176 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1177 img->HeightLog2 = _mesa_logbase2(img->Height2); 1178 if (depth == 0) 1179 img->Depth2 = 0; 1180 else 1181 img->Depth2 = 1; 1182 img->DepthLog2 = 0; 1183 break; 1184 case GL_TEXTURE_2D_ARRAY: 1185 case GL_PROXY_TEXTURE_2D_ARRAY: 1186 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1187 img->HeightLog2 = _mesa_logbase2(img->Height2); 1188 img->Depth2 = depth; /* no border */ 1189 img->DepthLog2 = 0; /* not used */ 1190 break; 1191 case GL_TEXTURE_3D: 1192 case GL_PROXY_TEXTURE_3D: 1193 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1194 img->HeightLog2 = _mesa_logbase2(img->Height2); 1195 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ 1196 img->DepthLog2 = _mesa_logbase2(img->Depth2); 1197 break; 1198 default: 1199 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()", 1200 target); 1201 } 1202 1203 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 1204 img->TexFormat = format; 1205} 1206 1207 1208/** 1209 * Free and clear fields of the gl_texture_image struct. 1210 * 1211 * \param ctx GL context. 1212 * \param texImage texture image structure to be cleared. 1213 * 1214 * After the call, \p texImage will have no data associated with it. Its 1215 * fields are cleared so that its parent object will test incomplete. 1216 */ 1217void 1218_mesa_clear_texture_image(struct gl_context *ctx, 1219 struct gl_texture_image *texImage) 1220{ 1221 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 1222 clear_teximage_fields(texImage); 1223} 1224 1225 1226/** 1227 * This is the fallback for Driver.TestProxyTexImage(). Test the texture 1228 * level, width, height and depth against the ctx->Const limits for textures. 1229 * 1230 * A hardware driver might override this function if, for example, the 1231 * max 3D texture size is 512x512x64 (i.e. not a cube). 1232 * 1233 * Note that width, height, depth == 0 is not an error. However, a 1234 * texture with zero width/height/depth will be considered "incomplete" 1235 * and texturing will effectively be disabled. 1236 * 1237 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, 1238 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, 1239 * GL_PROXY_TEXTURE_CUBE_MAP_ARB. 1240 * \param level as passed to glTexImage 1241 * \param internalFormat as passed to glTexImage 1242 * \param format as passed to glTexImage 1243 * \param type as passed to glTexImage 1244 * \param width as passed to glTexImage 1245 * \param height as passed to glTexImage 1246 * \param depth as passed to glTexImage 1247 * \param border as passed to glTexImage 1248 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. 1249 */ 1250GLboolean 1251_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, 1252 GLint internalFormat, GLenum format, GLenum type, 1253 GLint width, GLint height, GLint depth, GLint border) 1254{ 1255 GLint maxSize; 1256 1257 (void) internalFormat; 1258 (void) format; 1259 (void) type; 1260 1261 switch (target) { 1262 case GL_PROXY_TEXTURE_1D: 1263 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1264 if (width < 2 * border || width > 2 * border + maxSize) 1265 return GL_FALSE; 1266 if (level >= ctx->Const.MaxTextureLevels) 1267 return GL_FALSE; 1268 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1269 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1270 return GL_FALSE; 1271 } 1272 return GL_TRUE; 1273 1274 case GL_PROXY_TEXTURE_2D: 1275 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1276 if (width < 2 * border || width > 2 * border + maxSize) 1277 return GL_FALSE; 1278 if (height < 2 * border || height > 2 * border + maxSize) 1279 return GL_FALSE; 1280 if (level >= ctx->Const.MaxTextureLevels) 1281 return GL_FALSE; 1282 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1283 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1284 return GL_FALSE; 1285 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1286 return GL_FALSE; 1287 } 1288 return GL_TRUE; 1289 1290 case GL_PROXY_TEXTURE_3D: 1291 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1292 if (width < 2 * border || width > 2 * border + maxSize) 1293 return GL_FALSE; 1294 if (height < 2 * border || height > 2 * border + maxSize) 1295 return GL_FALSE; 1296 if (depth < 2 * border || depth > 2 * border + maxSize) 1297 return GL_FALSE; 1298 if (level >= ctx->Const.Max3DTextureLevels) 1299 return GL_FALSE; 1300 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1301 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1302 return GL_FALSE; 1303 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1304 return GL_FALSE; 1305 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1306 return GL_FALSE; 1307 } 1308 return GL_TRUE; 1309 1310 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1311 maxSize = ctx->Const.MaxTextureRectSize; 1312 if (width < 0 || width > maxSize) 1313 return GL_FALSE; 1314 if (height < 0 || height > maxSize) 1315 return GL_FALSE; 1316 if (level != 0) 1317 return GL_FALSE; 1318 return GL_TRUE; 1319 1320 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1321 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1322 if (width < 2 * border || width > 2 * border + maxSize) 1323 return GL_FALSE; 1324 if (height < 2 * border || height > 2 * border + maxSize) 1325 return GL_FALSE; 1326 if (level >= ctx->Const.MaxCubeTextureLevels) 1327 return GL_FALSE; 1328 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1329 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1330 return GL_FALSE; 1331 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1332 return GL_FALSE; 1333 } 1334 return GL_TRUE; 1335 1336 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1337 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1338 if (width < 2 * border || width > 2 * border + maxSize) 1339 return GL_FALSE; 1340 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1341 return GL_FALSE; 1342 if (level >= ctx->Const.MaxTextureLevels) 1343 return GL_FALSE; 1344 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1345 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1346 return GL_FALSE; 1347 } 1348 return GL_TRUE; 1349 1350 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1351 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1352 if (width < 2 * border || width > 2 * border + maxSize) 1353 return GL_FALSE; 1354 if (height < 2 * border || height > 2 * border + maxSize) 1355 return GL_FALSE; 1356 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1357 return GL_FALSE; 1358 if (level >= ctx->Const.MaxTextureLevels) 1359 return GL_FALSE; 1360 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1361 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1362 return GL_FALSE; 1363 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1364 return GL_FALSE; 1365 } 1366 return GL_TRUE; 1367 1368 default: 1369 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1370 return GL_FALSE; 1371 } 1372} 1373 1374 1375/** 1376 * Check if the memory used by the texture would exceed the driver's limit. 1377 * This lets us support a max 3D texture size of 8K (for example) but 1378 * prevents allocating a full 8K x 8K x 8K texture. 1379 * XXX this could be rolled into the proxy texture size test (above) but 1380 * we don't have the actual texture internal format at that point. 1381 */ 1382static GLboolean 1383legal_texture_size(struct gl_context *ctx, gl_format format, 1384 GLint width, GLint height, GLint depth) 1385{ 1386 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1387 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1388 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1389} 1390 1391 1392/** 1393 * Return true if the format is only valid for glCompressedTexImage. 1394 */ 1395static GLboolean 1396compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1397{ 1398 switch (format) { 1399 case GL_ETC1_RGB8_OES: 1400 return GL_TRUE; 1401 default: 1402 return GL_FALSE; 1403 } 1404} 1405 1406 1407/** 1408 * Helper function to determine whether a target and specific compression 1409 * format are supported. 1410 */ 1411static GLboolean 1412target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1413 GLenum intFormat) 1414{ 1415 (void) intFormat; /* not used yet */ 1416 1417 switch (target) { 1418 case GL_TEXTURE_2D: 1419 case GL_PROXY_TEXTURE_2D: 1420 return GL_TRUE; /* true for any compressed format so far */ 1421 case GL_PROXY_TEXTURE_CUBE_MAP: 1422 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1423 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1424 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1425 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1426 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1427 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1428 return ctx->Extensions.ARB_texture_cube_map; 1429 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1430 case GL_TEXTURE_2D_ARRAY_EXT: 1431 return (ctx->Extensions.MESA_texture_array || 1432 ctx->Extensions.EXT_texture_array); 1433 default: 1434 return GL_FALSE; 1435 } 1436} 1437 1438 1439/** 1440 * Check if the given texture target value is legal for a 1441 * glTexImage1/2/3D call. 1442 */ 1443static GLboolean 1444legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1445{ 1446 switch (dims) { 1447 case 1: 1448 switch (target) { 1449 case GL_TEXTURE_1D: 1450 case GL_PROXY_TEXTURE_1D: 1451 return GL_TRUE; 1452 default: 1453 return GL_FALSE; 1454 } 1455 case 2: 1456 switch (target) { 1457 case GL_TEXTURE_2D: 1458 case GL_PROXY_TEXTURE_2D: 1459 return GL_TRUE; 1460 case GL_PROXY_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 ctx->Extensions.NV_texture_rectangle; 1471 case GL_TEXTURE_1D_ARRAY_EXT: 1472 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1473 return (ctx->Extensions.MESA_texture_array || 1474 ctx->Extensions.EXT_texture_array); 1475 default: 1476 return GL_FALSE; 1477 } 1478 case 3: 1479 switch (target) { 1480 case GL_TEXTURE_3D: 1481 case GL_PROXY_TEXTURE_3D: 1482 return GL_TRUE; 1483 case GL_TEXTURE_2D_ARRAY_EXT: 1484 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1485 return (ctx->Extensions.MESA_texture_array || 1486 ctx->Extensions.EXT_texture_array); 1487 default: 1488 return GL_FALSE; 1489 } 1490 default: 1491 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1492 return GL_FALSE; 1493 } 1494} 1495 1496 1497/** 1498 * Check if the given texture target value is legal for a 1499 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1500 * The difference compared to legal_teximage_target() above is that 1501 * proxy targets are not supported. 1502 */ 1503static GLboolean 1504legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1505{ 1506 switch (dims) { 1507 case 1: 1508 return target == GL_TEXTURE_1D; 1509 case 2: 1510 switch (target) { 1511 case GL_TEXTURE_2D: 1512 return GL_TRUE; 1513 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1514 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1515 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1516 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1517 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1518 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1519 return ctx->Extensions.ARB_texture_cube_map; 1520 case GL_TEXTURE_RECTANGLE_NV: 1521 return ctx->Extensions.NV_texture_rectangle; 1522 case GL_TEXTURE_1D_ARRAY_EXT: 1523 return (ctx->Extensions.MESA_texture_array || 1524 ctx->Extensions.EXT_texture_array); 1525 default: 1526 return GL_FALSE; 1527 } 1528 case 3: 1529 switch (target) { 1530 case GL_TEXTURE_3D: 1531 return GL_TRUE; 1532 case GL_TEXTURE_2D_ARRAY_EXT: 1533 return (ctx->Extensions.MESA_texture_array || 1534 ctx->Extensions.EXT_texture_array); 1535 default: 1536 return GL_FALSE; 1537 } 1538 default: 1539 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1540 dims); 1541 return GL_FALSE; 1542 } 1543} 1544 1545 1546/** 1547 * Helper function to determine if a texture object is mutable (in terms 1548 * of GL_ARB_texture_storage). 1549 */ 1550static GLboolean 1551mutable_tex_object(struct gl_context *ctx, GLenum target) 1552{ 1553 if (ctx->Extensions.ARB_texture_storage) { 1554 struct gl_texture_object *texObj = 1555 _mesa_get_current_tex_object(ctx, target); 1556 return !texObj->Immutable; 1557 } 1558 return GL_TRUE; 1559} 1560 1561 1562 1563/** 1564 * Test the glTexImage[123]D() parameters for errors. 1565 * 1566 * \param ctx GL context. 1567 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1568 * \param target texture target given by the user. 1569 * \param level image level given by the user. 1570 * \param internalFormat internal format given by the user. 1571 * \param format pixel data format given by the user. 1572 * \param type pixel data type given by the user. 1573 * \param width image width given by the user. 1574 * \param height image height given by the user. 1575 * \param depth image depth given by the user. 1576 * \param border image border given by the user. 1577 * 1578 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1579 * 1580 * Verifies each of the parameters against the constants specified in 1581 * __struct gl_contextRec::Const and the supported extensions, and according 1582 * to the OpenGL specification. 1583 */ 1584static GLboolean 1585texture_error_check( struct gl_context *ctx, 1586 GLuint dimensions, GLenum target, 1587 GLint level, GLint internalFormat, 1588 GLenum format, GLenum type, 1589 GLint width, GLint height, 1590 GLint depth, GLint border ) 1591{ 1592 const GLenum proxyTarget = get_proxy_target(target); 1593 const GLboolean isProxy = target == proxyTarget; 1594 GLboolean sizeOK = GL_TRUE; 1595 GLboolean colorFormat; 1596 GLenum err; 1597 1598 /* Even though there are no color-index textures, we still have to support 1599 * uploading color-index data and remapping it to RGB via the 1600 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1601 */ 1602 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1603 1604 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1605 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1606 if (!isProxy) { 1607 _mesa_error(ctx, GL_INVALID_VALUE, 1608 "glTexImage%dD(level=%d)", dimensions, level); 1609 } 1610 return GL_TRUE; 1611 } 1612 1613 /* Check border */ 1614 if (border < 0 || border > 1 || 1615 ((target == GL_TEXTURE_RECTANGLE_NV || 1616 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1617 if (!isProxy) { 1618 _mesa_error(ctx, GL_INVALID_VALUE, 1619 "glTexImage%dD(border=%d)", dimensions, border); 1620 } 1621 return GL_TRUE; 1622 } 1623 1624 if (width < 0 || height < 0 || depth < 0) { 1625 if (!isProxy) { 1626 _mesa_error(ctx, GL_INVALID_VALUE, 1627 "glTexImage%dD(width, height or depth < 0)", dimensions); 1628 } 1629 return GL_TRUE; 1630 } 1631 1632 /* Do this simple check before calling the TestProxyTexImage() function */ 1633 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1634 sizeOK = (width == height); 1635 } 1636 1637 /* 1638 * Use the proxy texture driver hook to see if the size/level/etc are 1639 * legal. 1640 */ 1641 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1642 internalFormat, format, 1643 type, width, height, 1644 depth, border); 1645 if (!sizeOK) { 1646 if (!isProxy) { 1647 _mesa_error(ctx, GL_INVALID_VALUE, 1648 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1649 dimensions, level, width, height, depth); 1650 } 1651 return GL_TRUE; 1652 } 1653 1654 /* Check internalFormat */ 1655 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1656 if (!isProxy) { 1657 _mesa_error(ctx, GL_INVALID_VALUE, 1658 "glTexImage%dD(internalFormat=%s)", 1659 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1660 } 1661 return GL_TRUE; 1662 } 1663 1664 /* Check incoming image format and type */ 1665 err = _mesa_error_check_format_and_type(ctx, format, type); 1666 if (err != GL_NO_ERROR) { 1667 if (!isProxy) { 1668 _mesa_error(ctx, err, 1669 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1670 dimensions, format, type); 1671 } 1672 return GL_TRUE; 1673 } 1674 1675 /* make sure internal format and format basically agree */ 1676 colorFormat = _mesa_is_color_format(format); 1677 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1678 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1679 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1680 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1681 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1682 if (!isProxy) 1683 _mesa_error(ctx, GL_INVALID_OPERATION, 1684 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1685 dimensions, internalFormat, format); 1686 return GL_TRUE; 1687 } 1688 1689 /* additional checks for ycbcr textures */ 1690 if (internalFormat == GL_YCBCR_MESA) { 1691 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1692 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1693 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1694 char message[100]; 1695 _mesa_snprintf(message, sizeof(message), 1696 "glTexImage%dD(format/type YCBCR mismatch", dimensions); 1697 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1698 return GL_TRUE; /* error */ 1699 } 1700 if (target != GL_TEXTURE_2D && 1701 target != GL_PROXY_TEXTURE_2D && 1702 target != GL_TEXTURE_RECTANGLE_NV && 1703 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1704 if (!isProxy) 1705 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)"); 1706 return GL_TRUE; 1707 } 1708 if (border != 0) { 1709 if (!isProxy) { 1710 char message[100]; 1711 _mesa_snprintf(message, sizeof(message), 1712 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1713 dimensions, border); 1714 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1715 } 1716 return GL_TRUE; 1717 } 1718 } 1719 1720 /* additional checks for depth textures */ 1721 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1722 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1723 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1724 if (target != GL_TEXTURE_1D && 1725 target != GL_PROXY_TEXTURE_1D && 1726 target != GL_TEXTURE_2D && 1727 target != GL_PROXY_TEXTURE_2D && 1728 target != GL_TEXTURE_1D_ARRAY && 1729 target != GL_PROXY_TEXTURE_1D_ARRAY && 1730 target != GL_TEXTURE_2D_ARRAY && 1731 target != GL_PROXY_TEXTURE_2D_ARRAY && 1732 target != GL_TEXTURE_RECTANGLE_ARB && 1733 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1734 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1735 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1736 if (!isProxy) 1737 _mesa_error(ctx, GL_INVALID_ENUM, 1738 "glTexImage(target/internalFormat)"); 1739 return GL_TRUE; 1740 } 1741 } 1742 1743 /* additional checks for compressed textures */ 1744 if (_mesa_is_compressed_format(ctx, internalFormat) || 1745 is_generic_compressed_format(internalFormat)) { 1746 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1747 if (!isProxy) 1748 _mesa_error(ctx, GL_INVALID_ENUM, 1749 "glTexImage%dD(target)", dimensions); 1750 return GL_TRUE; 1751 } 1752 if (compressedteximage_only_format(ctx, internalFormat)) { 1753 _mesa_error(ctx, GL_INVALID_OPERATION, 1754 "glTexImage%dD(no compression for format)", dimensions); 1755 return GL_TRUE; 1756 } 1757 if (border != 0) { 1758 if (!isProxy) { 1759 _mesa_error(ctx, GL_INVALID_OPERATION, 1760 "glTexImage%dD(border!=0)", dimensions); 1761 } 1762 return GL_TRUE; 1763 } 1764 } 1765 1766 /* additional checks for integer textures */ 1767 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1768 (_mesa_is_enum_format_integer(format) != 1769 _mesa_is_enum_format_integer(internalFormat))) { 1770 if (!isProxy) { 1771 _mesa_error(ctx, GL_INVALID_OPERATION, 1772 "glTexImage%dD(integer/non-integer format mismatch)", 1773 dimensions); 1774 } 1775 return GL_TRUE; 1776 } 1777 1778 if (!mutable_tex_object(ctx, target)) { 1779 _mesa_error(ctx, GL_INVALID_OPERATION, 1780 "glTexImage%dD(immutable texture)", dimensions); 1781 return GL_TRUE; 1782 } 1783 1784 /* if we get here, the parameters are OK */ 1785 return GL_FALSE; 1786} 1787 1788 1789/** 1790 * Test glTexSubImage[123]D() parameters for errors. 1791 * 1792 * \param ctx GL context. 1793 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1794 * \param target texture target given by the user. 1795 * \param level image level given by the user. 1796 * \param xoffset sub-image x offset given by the user. 1797 * \param yoffset sub-image y offset given by the user. 1798 * \param zoffset sub-image z offset given by the user. 1799 * \param format pixel data format given by the user. 1800 * \param type pixel data type given by the user. 1801 * \param width image width given by the user. 1802 * \param height image height given by the user. 1803 * \param depth image depth given by the user. 1804 * 1805 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1806 * 1807 * Verifies each of the parameters against the constants specified in 1808 * __struct gl_contextRec::Const and the supported extensions, and according 1809 * to the OpenGL specification. 1810 */ 1811static GLboolean 1812subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 1813 GLenum target, GLint level, 1814 GLint xoffset, GLint yoffset, GLint zoffset, 1815 GLint width, GLint height, GLint depth, 1816 GLenum format, GLenum type ) 1817{ 1818 GLenum err; 1819 1820 /* Basic level check */ 1821 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1822 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 1823 return GL_TRUE; 1824 } 1825 1826 /* Check for negative sizes */ 1827 if (width < 0) { 1828 _mesa_error(ctx, GL_INVALID_VALUE, 1829 "glTexSubImage%dD(width=%d)", dimensions, width); 1830 return GL_TRUE; 1831 } 1832 if (height < 0 && dimensions > 1) { 1833 _mesa_error(ctx, GL_INVALID_VALUE, 1834 "glTexSubImage%dD(height=%d)", dimensions, height); 1835 return GL_TRUE; 1836 } 1837 if (depth < 0 && dimensions > 2) { 1838 _mesa_error(ctx, GL_INVALID_VALUE, 1839 "glTexSubImage%dD(depth=%d)", dimensions, depth); 1840 return GL_TRUE; 1841 } 1842 1843 err = _mesa_error_check_format_and_type(ctx, format, type); 1844 if (err != GL_NO_ERROR) { 1845 _mesa_error(ctx, err, 1846 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 1847 dimensions, format, type); 1848 return GL_TRUE; 1849 } 1850 1851 return GL_FALSE; 1852} 1853 1854 1855/** 1856 * Do second part of glTexSubImage which depends on the destination texture. 1857 * \return GL_TRUE if error recorded, GL_FALSE otherwise 1858 */ 1859static GLboolean 1860subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 1861 GLenum target, GLint level, 1862 GLint xoffset, GLint yoffset, GLint zoffset, 1863 GLint width, GLint height, GLint depth, 1864 GLenum format, GLenum type, 1865 const struct gl_texture_image *destTex ) 1866{ 1867 if (!destTex) { 1868 /* undefined image level */ 1869 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 1870 return GL_TRUE; 1871 } 1872 1873 if (xoffset < -((GLint)destTex->Border)) { 1874 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 1875 dimensions); 1876 return GL_TRUE; 1877 } 1878 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 1879 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 1880 dimensions); 1881 return GL_TRUE; 1882 } 1883 if (dimensions > 1) { 1884 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 1885 if (yoffset < -yBorder) { 1886 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 1887 dimensions); 1888 return GL_TRUE; 1889 } 1890 if (yoffset + height > (GLint) destTex->Height + yBorder) { 1891 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 1892 dimensions); 1893 return GL_TRUE; 1894 } 1895 } 1896 if (dimensions > 2) { 1897 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 1898 if (zoffset < -zBorder) { 1899 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 1900 return GL_TRUE; 1901 } 1902 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 1903 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 1904 return GL_TRUE; 1905 } 1906 } 1907 1908 if (_mesa_is_format_compressed(destTex->TexFormat)) { 1909 GLuint bw, bh; 1910 1911 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 1912 _mesa_error(ctx, GL_INVALID_OPERATION, 1913 "glTexSubImage%dD(no compression for format)", dimensions); 1914 return GL_TRUE; 1915 } 1916 1917 /* do tests which depend on compression block size */ 1918 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 1919 1920 /* offset must be multiple of block size */ 1921 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 1922 _mesa_error(ctx, GL_INVALID_OPERATION, 1923 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 1924 dimensions, xoffset, yoffset); 1925 return GL_TRUE; 1926 } 1927 /* size must be multiple of bw by bh or equal to whole texture size */ 1928 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 1929 _mesa_error(ctx, GL_INVALID_OPERATION, 1930 "glTexSubImage%dD(width = %d)", dimensions, width); 1931 return GL_TRUE; 1932 } 1933 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 1934 _mesa_error(ctx, GL_INVALID_OPERATION, 1935 "glTexSubImage%dD(height = %d)", dimensions, height); 1936 return GL_TRUE; 1937 } 1938 } 1939 1940 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 1941 /* both source and dest must be integer-valued, or neither */ 1942 if (_mesa_is_format_integer_color(destTex->TexFormat) != 1943 _mesa_is_enum_format_integer(format)) { 1944 _mesa_error(ctx, GL_INVALID_OPERATION, 1945 "glTexSubImage%dD(integer/non-integer format mismatch)", 1946 dimensions); 1947 return GL_TRUE; 1948 } 1949 } 1950 1951 return GL_FALSE; 1952} 1953 1954 1955/** 1956 * Test glCopyTexImage[12]D() parameters for errors. 1957 * 1958 * \param ctx GL context. 1959 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1960 * \param target texture target given by the user. 1961 * \param level image level given by the user. 1962 * \param internalFormat internal format given by the user. 1963 * \param width image width given by the user. 1964 * \param height image height given by the user. 1965 * \param border texture border. 1966 * 1967 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1968 * 1969 * Verifies each of the parameters against the constants specified in 1970 * __struct gl_contextRec::Const and the supported extensions, and according 1971 * to the OpenGL specification. 1972 */ 1973static GLboolean 1974copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 1975 GLenum target, GLint level, GLint internalFormat, 1976 GLint width, GLint height, GLint border ) 1977{ 1978 const GLenum proxyTarget = get_proxy_target(target); 1979 const GLenum type = GL_FLOAT; 1980 GLboolean sizeOK; 1981 GLint baseFormat; 1982 1983 /* check target */ 1984 if (!legal_texsubimage_target(ctx, dimensions, target)) { 1985 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 1986 dimensions, _mesa_lookup_enum_by_nr(target)); 1987 return GL_TRUE; 1988 } 1989 1990 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1991 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1992 _mesa_error(ctx, GL_INVALID_VALUE, 1993 "glCopyTexImage%dD(level=%d)", dimensions, level); 1994 return GL_TRUE; 1995 } 1996 1997 /* Check that the source buffer is complete */ 1998 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 1999 if (ctx->ReadBuffer->_Status == 0) { 2000 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2001 } 2002 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2003 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2004 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2005 return GL_TRUE; 2006 } 2007 2008 if (ctx->ReadBuffer->Visual.samples > 0) { 2009 _mesa_error(ctx, GL_INVALID_OPERATION, 2010 "glCopyTexImage%dD(multisample FBO)", 2011 dimensions); 2012 return GL_TRUE; 2013 } 2014 } 2015 2016 /* Check border */ 2017 if (border < 0 || border > 1 || 2018 ((target == GL_TEXTURE_RECTANGLE_NV || 2019 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2020 return GL_TRUE; 2021 } 2022 2023 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2024 if (baseFormat < 0) { 2025 _mesa_error(ctx, GL_INVALID_VALUE, 2026 "glCopyTexImage%dD(internalFormat)", dimensions); 2027 return GL_TRUE; 2028 } 2029 2030 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2031 _mesa_error(ctx, GL_INVALID_OPERATION, 2032 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2033 return GL_TRUE; 2034 } 2035 2036 /* From the EXT_texture_integer spec: 2037 * 2038 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2039 * if the texture internalformat is an integer format and the read color 2040 * buffer is not an integer format, or if the internalformat is not an 2041 * integer format and the read color buffer is an integer format." 2042 */ 2043 if (_mesa_is_color_format(internalFormat)) { 2044 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2045 2046 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2047 _mesa_is_enum_format_integer(internalFormat)) { 2048 _mesa_error(ctx, GL_INVALID_OPERATION, 2049 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2050 return GL_TRUE; 2051 } 2052 } 2053 2054 /* Do size, level checking */ 2055 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2056 ? (width == height) : 1; 2057 2058 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2059 internalFormat, baseFormat, 2060 type, width, height, 2061 1, border); 2062 2063 if (!sizeOK) { 2064 if (dimensions == 1) { 2065 _mesa_error(ctx, GL_INVALID_VALUE, 2066 "glCopyTexImage1D(width=%d)", width); 2067 } 2068 else { 2069 ASSERT(dimensions == 2); 2070 _mesa_error(ctx, GL_INVALID_VALUE, 2071 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2072 } 2073 return GL_TRUE; 2074 } 2075 2076 if (_mesa_is_compressed_format(ctx, internalFormat) || 2077 is_generic_compressed_format(internalFormat)) { 2078 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2079 _mesa_error(ctx, GL_INVALID_ENUM, 2080 "glCopyTexImage%dD(target)", dimensions); 2081 return GL_TRUE; 2082 } 2083 if (compressedteximage_only_format(ctx, internalFormat)) { 2084 _mesa_error(ctx, GL_INVALID_OPERATION, 2085 "glCopyTexImage%dD(no compression for format)", dimensions); 2086 return GL_TRUE; 2087 } 2088 if (border != 0) { 2089 _mesa_error(ctx, GL_INVALID_OPERATION, 2090 "glCopyTexImage%dD(border!=0)", dimensions); 2091 return GL_TRUE; 2092 } 2093 } 2094 2095 if (!mutable_tex_object(ctx, target)) { 2096 _mesa_error(ctx, GL_INVALID_OPERATION, 2097 "glCopyTexImage%dD(immutable texture)", dimensions); 2098 return GL_TRUE; 2099 } 2100 2101 /* if we get here, the parameters are OK */ 2102 return GL_FALSE; 2103} 2104 2105 2106/** 2107 * Test glCopyTexSubImage[12]D() parameters for errors. 2108 * Note that this is the first part of error checking. 2109 * See also copytexsubimage_error_check2() below for the second part. 2110 * 2111 * \param ctx GL context. 2112 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2113 * \param target texture target given by the user. 2114 * \param level image level given by the user. 2115 * 2116 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2117 */ 2118static GLboolean 2119copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2120 GLenum target, GLint level) 2121{ 2122 /* Check that the source buffer is complete */ 2123 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2124 if (ctx->ReadBuffer->_Status == 0) { 2125 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2126 } 2127 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2128 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2129 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2130 return GL_TRUE; 2131 } 2132 2133 if (ctx->ReadBuffer->Visual.samples > 0) { 2134 _mesa_error(ctx, GL_INVALID_OPERATION, 2135 "glCopyTexSubImage%dD(multisample FBO)", 2136 dimensions); 2137 return GL_TRUE; 2138 } 2139 } 2140 2141 /* check target (proxies not allowed) */ 2142 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2143 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2144 dimensions, _mesa_lookup_enum_by_nr(target)); 2145 return GL_TRUE; 2146 } 2147 2148 /* Check level */ 2149 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2150 _mesa_error(ctx, GL_INVALID_VALUE, 2151 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2152 return GL_TRUE; 2153 } 2154 2155 return GL_FALSE; 2156} 2157 2158 2159/** 2160 * Second part of error checking for glCopyTexSubImage[12]D(). 2161 * \param xoffset sub-image x offset given by the user. 2162 * \param yoffset sub-image y offset given by the user. 2163 * \param zoffset sub-image z offset given by the user. 2164 * \param width image width given by the user. 2165 * \param height image height given by the user. 2166 */ 2167static GLboolean 2168copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2169 GLenum target, GLint level, 2170 GLint xoffset, GLint yoffset, GLint zoffset, 2171 GLsizei width, GLsizei height, 2172 const struct gl_texture_image *teximage ) 2173{ 2174 /* check that dest tex image exists */ 2175 if (!teximage) { 2176 _mesa_error(ctx, GL_INVALID_OPERATION, 2177 "glCopyTexSubImage%dD(undefined texture level: %d)", 2178 dimensions, level); 2179 return GL_TRUE; 2180 } 2181 2182 /* Check size */ 2183 if (width < 0) { 2184 _mesa_error(ctx, GL_INVALID_VALUE, 2185 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2186 return GL_TRUE; 2187 } 2188 if (dimensions > 1 && height < 0) { 2189 _mesa_error(ctx, GL_INVALID_VALUE, 2190 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2191 return GL_TRUE; 2192 } 2193 2194 /* check x/y offsets */ 2195 if (xoffset < -((GLint)teximage->Border)) { 2196 _mesa_error(ctx, GL_INVALID_VALUE, 2197 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2198 return GL_TRUE; 2199 } 2200 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2201 _mesa_error(ctx, GL_INVALID_VALUE, 2202 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2203 return GL_TRUE; 2204 } 2205 if (dimensions > 1) { 2206 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2207 if (yoffset < -yBorder) { 2208 _mesa_error(ctx, GL_INVALID_VALUE, 2209 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2210 return GL_TRUE; 2211 } 2212 /* NOTE: we're adding the border here, not subtracting! */ 2213 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2214 _mesa_error(ctx, GL_INVALID_VALUE, 2215 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2216 return GL_TRUE; 2217 } 2218 } 2219 2220 /* check z offset */ 2221 if (dimensions > 2) { 2222 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2223 if (zoffset < -zBorder) { 2224 _mesa_error(ctx, GL_INVALID_VALUE, 2225 "glCopyTexSubImage%dD(zoffset)", dimensions); 2226 return GL_TRUE; 2227 } 2228 if (zoffset > (GLint) teximage->Depth + zBorder) { 2229 _mesa_error(ctx, GL_INVALID_VALUE, 2230 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2231 return GL_TRUE; 2232 } 2233 } 2234 2235 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2236 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2237 _mesa_error(ctx, GL_INVALID_OPERATION, 2238 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2239 return GL_TRUE; 2240 } 2241 /* offset must be multiple of 4 */ 2242 if ((xoffset & 3) || (yoffset & 3)) { 2243 _mesa_error(ctx, GL_INVALID_VALUE, 2244 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2245 return GL_TRUE; 2246 } 2247 /* size must be multiple of 4 */ 2248 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2249 _mesa_error(ctx, GL_INVALID_VALUE, 2250 "glCopyTexSubImage%dD(width)", dimensions); 2251 return GL_TRUE; 2252 } 2253 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2254 _mesa_error(ctx, GL_INVALID_VALUE, 2255 "glCopyTexSubImage%dD(height)", dimensions); 2256 return GL_TRUE; 2257 } 2258 } 2259 2260 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2261 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2262 return GL_TRUE; 2263 } 2264 2265 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2266 _mesa_error(ctx, GL_INVALID_OPERATION, 2267 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2268 dimensions, teximage->_BaseFormat); 2269 return GL_TRUE; 2270 } 2271 2272 /* From the EXT_texture_integer spec: 2273 * 2274 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2275 * if the texture internalformat is an integer format and the read color 2276 * buffer is not an integer format, or if the internalformat is not an 2277 * integer format and the read color buffer is an integer format." 2278 */ 2279 if (_mesa_is_color_format(teximage->InternalFormat)) { 2280 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2281 2282 if (_mesa_is_format_integer_color(rb->Format) != 2283 _mesa_is_format_integer_color(teximage->TexFormat)) { 2284 _mesa_error(ctx, GL_INVALID_OPERATION, 2285 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2286 return GL_TRUE; 2287 } 2288 } 2289 2290 /* if we get here, the parameters are OK */ 2291 return GL_FALSE; 2292} 2293 2294 2295/** Callback info for walking over FBO hash table */ 2296struct cb_info 2297{ 2298 struct gl_context *ctx; 2299 struct gl_texture_object *texObj; 2300 GLuint level, face; 2301}; 2302 2303 2304/** 2305 * Check render to texture callback. Called from _mesa_HashWalk(). 2306 */ 2307static void 2308check_rtt_cb(GLuint key, void *data, void *userData) 2309{ 2310 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2311 const struct cb_info *info = (struct cb_info *) userData; 2312 struct gl_context *ctx = info->ctx; 2313 const struct gl_texture_object *texObj = info->texObj; 2314 const GLuint level = info->level, face = info->face; 2315 2316 /* If this is a user-created FBO */ 2317 if (_mesa_is_user_fbo(fb)) { 2318 GLuint i; 2319 /* check if any of the FBO's attachments point to 'texObj' */ 2320 for (i = 0; i < BUFFER_COUNT; i++) { 2321 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2322 if (att->Type == GL_TEXTURE && 2323 att->Texture == texObj && 2324 att->TextureLevel == level && 2325 att->CubeMapFace == face) { 2326 ASSERT(_mesa_get_attachment_teximage(att)); 2327 /* Tell driver about the new renderbuffer texture */ 2328 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2329 /* Mark fb status as indeterminate to force re-validation */ 2330 fb->_Status = 0; 2331 } 2332 } 2333 } 2334} 2335 2336 2337/** 2338 * When a texture image is specified we have to check if it's bound to 2339 * any framebuffer objects (render to texture) in order to detect changes 2340 * in size or format since that effects FBO completeness. 2341 * Any FBOs rendering into the texture must be re-validated. 2342 */ 2343void 2344_mesa_update_fbo_texture(struct gl_context *ctx, 2345 struct gl_texture_object *texObj, 2346 GLuint face, GLuint level) 2347{ 2348 /* Only check this texture if it's been marked as RenderToTexture */ 2349 if (texObj->_RenderToTexture) { 2350 struct cb_info info; 2351 info.ctx = ctx; 2352 info.texObj = texObj; 2353 info.level = level; 2354 info.face = face; 2355 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2356 } 2357} 2358 2359 2360/** 2361 * If the texture object's GenerateMipmap flag is set and we've 2362 * changed the texture base level image, regenerate the rest of the 2363 * mipmap levels now. 2364 */ 2365static inline void 2366check_gen_mipmap(struct gl_context *ctx, GLenum target, 2367 struct gl_texture_object *texObj, GLint level) 2368{ 2369 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2370 if (texObj->GenerateMipmap && 2371 level == texObj->BaseLevel && 2372 level < texObj->MaxLevel) { 2373 ASSERT(ctx->Driver.GenerateMipmap); 2374 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2375 } 2376} 2377 2378 2379/** Debug helper: override the user-requested internal format */ 2380static GLenum 2381override_internal_format(GLenum internalFormat, GLint width, GLint height) 2382{ 2383#if 0 2384 if (internalFormat == GL_RGBA16F_ARB || 2385 internalFormat == GL_RGBA32F_ARB) { 2386 printf("Convert rgba float tex to int %d x %d\n", width, height); 2387 return GL_RGBA; 2388 } 2389 else if (internalFormat == GL_RGB16F_ARB || 2390 internalFormat == GL_RGB32F_ARB) { 2391 printf("Convert rgb float tex to int %d x %d\n", width, height); 2392 return GL_RGB; 2393 } 2394 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2395 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2396 printf("Convert luminance float tex to int %d x %d\n", width, height); 2397 return GL_LUMINANCE_ALPHA; 2398 } 2399 else if (internalFormat == GL_LUMINANCE16F_ARB || 2400 internalFormat == GL_LUMINANCE32F_ARB) { 2401 printf("Convert luminance float tex to int %d x %d\n", width, height); 2402 return GL_LUMINANCE; 2403 } 2404 else if (internalFormat == GL_ALPHA16F_ARB || 2405 internalFormat == GL_ALPHA32F_ARB) { 2406 printf("Convert luminance float tex to int %d x %d\n", width, height); 2407 return GL_ALPHA; 2408 } 2409 /* 2410 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2411 internalFormat = GL_RGBA; 2412 } 2413 */ 2414 else { 2415 return internalFormat; 2416 } 2417#else 2418 return internalFormat; 2419#endif 2420} 2421 2422 2423/** 2424 * Choose the actual hardware format for a texture image. 2425 * Try to use the same format as the previous image level when possible. 2426 * Otherwise, ask the driver for the best format. 2427 * It's important to try to choose a consistant format for all levels 2428 * for efficient texture memory layout/allocation. In particular, this 2429 * comes up during automatic mipmap generation. 2430 */ 2431gl_format 2432_mesa_choose_texture_format(struct gl_context *ctx, 2433 struct gl_texture_object *texObj, 2434 GLenum target, GLint level, 2435 GLenum internalFormat, GLenum format, GLenum type) 2436{ 2437 gl_format f; 2438 2439 /* see if we've already chosen a format for the previous level */ 2440 if (level > 0) { 2441 struct gl_texture_image *prevImage = 2442 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2443 /* See if the prev level is defined and has an internal format which 2444 * matches the new internal format. 2445 */ 2446 if (prevImage && 2447 prevImage->Width > 0 && 2448 prevImage->InternalFormat == internalFormat) { 2449 /* use the same format */ 2450 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2451 return prevImage->TexFormat; 2452 } 2453 } 2454 2455 /* choose format from scratch */ 2456 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type); 2457 ASSERT(f != MESA_FORMAT_NONE); 2458 return f; 2459} 2460 2461/** 2462 * Adjust pixel unpack params and image dimensions to strip off the 2463 * one-pixel texture border. 2464 * 2465 * Gallium and intel don't support texture borders. They've seldem been used 2466 * and seldom been implemented correctly anyway. 2467 * 2468 * \param unpackNew returns the new pixel unpack parameters 2469 */ 2470static void 2471strip_texture_border(GLenum target, 2472 GLint *width, GLint *height, GLint *depth, 2473 const struct gl_pixelstore_attrib *unpack, 2474 struct gl_pixelstore_attrib *unpackNew) 2475{ 2476 assert(width); 2477 assert(height); 2478 assert(depth); 2479 2480 *unpackNew = *unpack; 2481 2482 if (unpackNew->RowLength == 0) 2483 unpackNew->RowLength = *width; 2484 2485 if (unpackNew->ImageHeight == 0) 2486 unpackNew->ImageHeight = *height; 2487 2488 assert(*width >= 3); 2489 unpackNew->SkipPixels++; /* skip the border */ 2490 *width = *width - 2; /* reduce the width by two border pixels */ 2491 2492 /* The min height of a texture with a border is 3 */ 2493 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2494 unpackNew->SkipRows++; /* skip the border */ 2495 *height = *height - 2; /* reduce the height by two border pixels */ 2496 } 2497 2498 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2499 unpackNew->SkipImages++; /* skip the border */ 2500 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2501 } 2502} 2503 2504/** 2505 * Common code to implement all the glTexImage1D/2D/3D functions. 2506 */ 2507static void 2508teximage(struct gl_context *ctx, GLuint dims, 2509 GLenum target, GLint level, GLint internalFormat, 2510 GLsizei width, GLsizei height, GLsizei depth, 2511 GLint border, GLenum format, GLenum type, 2512 const GLvoid *pixels) 2513{ 2514 GLboolean error; 2515 struct gl_pixelstore_attrib unpack_no_border; 2516 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2517 2518 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2519 2520 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2521 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2522 dims, 2523 _mesa_lookup_enum_by_nr(target), level, 2524 _mesa_lookup_enum_by_nr(internalFormat), 2525 width, height, depth, border, 2526 _mesa_lookup_enum_by_nr(format), 2527 _mesa_lookup_enum_by_nr(type), pixels); 2528 2529 internalFormat = override_internal_format(internalFormat, width, height); 2530 2531 /* target error checking */ 2532 if (!legal_teximage_target(ctx, dims, target)) { 2533 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)", 2534 dims, _mesa_lookup_enum_by_nr(target)); 2535 return; 2536 } 2537 2538 /* general error checking */ 2539 error = texture_error_check(ctx, dims, target, level, internalFormat, 2540 format, type, width, height, depth, border); 2541 2542 if (_mesa_is_proxy_texture(target)) { 2543 /* Proxy texture: just clear or set state depending on error checking */ 2544 struct gl_texture_image *texImage = 2545 _mesa_get_proxy_tex_image(ctx, target, level); 2546 2547 if (error) { 2548 /* when error, clear all proxy texture image parameters */ 2549 if (texImage) 2550 clear_teximage_fields(texImage); 2551 } 2552 else { 2553 /* no error, set the tex image parameters */ 2554 struct gl_texture_object *texObj = 2555 _mesa_get_current_tex_object(ctx, target); 2556 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2557 target, level, 2558 internalFormat, 2559 format, type); 2560 2561 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2562 _mesa_init_teximage_fields(ctx, texImage, width, height, 2563 depth, border, internalFormat, 2564 texFormat); 2565 } 2566 else if (texImage) { 2567 clear_teximage_fields(texImage); 2568 } 2569 } 2570 } 2571 else { 2572 /* non-proxy target */ 2573 const GLuint face = _mesa_tex_target_to_face(target); 2574 struct gl_texture_object *texObj; 2575 struct gl_texture_image *texImage; 2576 2577 if (error) { 2578 return; /* error was recorded */ 2579 } 2580 2581 /* Allow a hardware driver to just strip out the border, to provide 2582 * reliable but slightly incorrect hardware rendering instead of 2583 * rarely-tested software fallback rendering. 2584 */ 2585 if (border && ctx->Const.StripTextureBorder) { 2586 strip_texture_border(target, &width, &height, &depth, unpack, 2587 &unpack_no_border); 2588 border = 0; 2589 unpack = &unpack_no_border; 2590 } 2591 2592 if (ctx->NewState & _NEW_PIXEL) 2593 _mesa_update_state(ctx); 2594 2595 texObj = _mesa_get_current_tex_object(ctx, target); 2596 2597 _mesa_lock_texture(ctx, texObj); 2598 { 2599 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2600 2601 if (!texImage) { 2602 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2603 } 2604 else { 2605 gl_format texFormat; 2606 2607 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2608 2609 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2610 internalFormat, format, 2611 type); 2612 2613 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2614 _mesa_init_teximage_fields(ctx, texImage, 2615 width, height, depth, 2616 border, internalFormat, texFormat); 2617 2618 /* Give the texture to the driver. <pixels> may be null. */ 2619 ctx->Driver.TexImage(ctx, dims, texImage, format, 2620 type, pixels, unpack); 2621 2622 check_gen_mipmap(ctx, target, texObj, level); 2623 2624 _mesa_update_fbo_texture(ctx, texObj, face, level); 2625 2626 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2627 } 2628 else { 2629 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2630 } 2631 } 2632 } 2633 _mesa_unlock_texture(ctx, texObj); 2634 } 2635} 2636 2637 2638/* 2639 * Called from the API. Note that width includes the border. 2640 */ 2641void GLAPIENTRY 2642_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 2643 GLsizei width, GLint border, GLenum format, 2644 GLenum type, const GLvoid *pixels ) 2645{ 2646 GET_CURRENT_CONTEXT(ctx); 2647 teximage(ctx, 1, target, level, internalFormat, width, 1, 1, 2648 border, format, type, pixels); 2649} 2650 2651 2652void GLAPIENTRY 2653_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 2654 GLsizei width, GLsizei height, GLint border, 2655 GLenum format, GLenum type, 2656 const GLvoid *pixels ) 2657{ 2658 GET_CURRENT_CONTEXT(ctx); 2659 teximage(ctx, 2, target, level, internalFormat, width, height, 1, 2660 border, format, type, pixels); 2661} 2662 2663 2664/* 2665 * Called by the API or display list executor. 2666 * Note that width and height include the border. 2667 */ 2668void GLAPIENTRY 2669_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 2670 GLsizei width, GLsizei height, GLsizei depth, 2671 GLint border, GLenum format, GLenum type, 2672 const GLvoid *pixels ) 2673{ 2674 GET_CURRENT_CONTEXT(ctx); 2675 teximage(ctx, 3, target, level, internalFormat, width, height, depth, 2676 border, format, type, pixels); 2677} 2678 2679 2680void GLAPIENTRY 2681_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 2682 GLsizei width, GLsizei height, GLsizei depth, 2683 GLint border, GLenum format, GLenum type, 2684 const GLvoid *pixels ) 2685{ 2686 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 2687 depth, border, format, type, pixels); 2688} 2689 2690 2691#if FEATURE_OES_EGL_image 2692void GLAPIENTRY 2693_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 2694{ 2695 struct gl_texture_object *texObj; 2696 struct gl_texture_image *texImage; 2697 GET_CURRENT_CONTEXT(ctx); 2698 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2699 2700 if ((target == GL_TEXTURE_2D && 2701 !ctx->Extensions.OES_EGL_image) || 2702 (target == GL_TEXTURE_EXTERNAL_OES && 2703 !ctx->Extensions.OES_EGL_image_external)) { 2704 _mesa_error(ctx, GL_INVALID_ENUM, 2705 "glEGLImageTargetTexture2D(target=%d)", target); 2706 return; 2707 } 2708 2709 if (ctx->NewState & _NEW_PIXEL) 2710 _mesa_update_state(ctx); 2711 2712 texObj = _mesa_get_current_tex_object(ctx, target); 2713 _mesa_lock_texture(ctx, texObj); 2714 2715 if (texObj->Immutable) { 2716 _mesa_error(ctx, GL_INVALID_OPERATION, 2717 "glEGLImageTargetTexture2D(texture is immutable)"); 2718 _mesa_unlock_texture(ctx, texObj); 2719 return; 2720 } 2721 2722 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 2723 if (!texImage) { 2724 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 2725 } else { 2726 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2727 2728 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 2729 texObj, texImage, image); 2730 2731 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2732 } 2733 _mesa_unlock_texture(ctx, texObj); 2734 2735} 2736#endif 2737 2738 2739 2740/** 2741 * Implement all the glTexSubImage1/2/3D() functions. 2742 */ 2743static void 2744texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 2745 GLint xoffset, GLint yoffset, GLint zoffset, 2746 GLsizei width, GLsizei height, GLsizei depth, 2747 GLenum format, GLenum type, const GLvoid *pixels ) 2748{ 2749 struct gl_texture_object *texObj; 2750 struct gl_texture_image *texImage; 2751 2752 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2753 2754 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2755 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 2756 dims, 2757 _mesa_lookup_enum_by_nr(target), level, 2758 xoffset, yoffset, zoffset, width, height, depth, 2759 _mesa_lookup_enum_by_nr(format), 2760 _mesa_lookup_enum_by_nr(type), pixels); 2761 2762 /* check target (proxies not allowed) */ 2763 if (!legal_texsubimage_target(ctx, dims, target)) { 2764 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 2765 dims, _mesa_lookup_enum_by_nr(target)); 2766 return; 2767 } 2768 2769 if (ctx->NewState & _NEW_PIXEL) 2770 _mesa_update_state(ctx); 2771 2772 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 2773 width, height, depth, format, type)) { 2774 return; /* error was detected */ 2775 } 2776 2777 texObj = _mesa_get_current_tex_object(ctx, target); 2778 2779 _mesa_lock_texture(ctx, texObj); 2780 { 2781 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 2782 2783 if (subtexture_error_check2(ctx, dims, target, level, 2784 xoffset, yoffset, zoffset, 2785 width, height, depth, 2786 format, type, texImage)) { 2787 /* error was recorded */ 2788 } 2789 else if (width > 0 && height > 0 && depth > 0) { 2790 /* If we have a border, offset=-1 is legal. Bias by border width. */ 2791 switch (dims) { 2792 case 3: 2793 if (target != GL_TEXTURE_2D_ARRAY) 2794 zoffset += texImage->Border; 2795 /* fall-through */ 2796 case 2: 2797 if (target != GL_TEXTURE_1D_ARRAY) 2798 yoffset += texImage->Border; 2799 /* fall-through */ 2800 case 1: 2801 xoffset += texImage->Border; 2802 } 2803 2804 ctx->Driver.TexSubImage(ctx, dims, texImage, 2805 xoffset, yoffset, zoffset, 2806 width, height, depth, 2807 format, type, pixels, &ctx->Unpack); 2808 2809 check_gen_mipmap(ctx, target, texObj, level); 2810 2811 ctx->NewState |= _NEW_TEXTURE; 2812 } 2813 } 2814 _mesa_unlock_texture(ctx, texObj); 2815} 2816 2817 2818void GLAPIENTRY 2819_mesa_TexSubImage1D( GLenum target, GLint level, 2820 GLint xoffset, GLsizei width, 2821 GLenum format, GLenum type, 2822 const GLvoid *pixels ) 2823{ 2824 GET_CURRENT_CONTEXT(ctx); 2825 texsubimage(ctx, 1, target, level, 2826 xoffset, 0, 0, 2827 width, 1, 1, 2828 format, type, pixels); 2829} 2830 2831 2832void GLAPIENTRY 2833_mesa_TexSubImage2D( GLenum target, GLint level, 2834 GLint xoffset, GLint yoffset, 2835 GLsizei width, GLsizei height, 2836 GLenum format, GLenum type, 2837 const GLvoid *pixels ) 2838{ 2839 GET_CURRENT_CONTEXT(ctx); 2840 texsubimage(ctx, 2, target, level, 2841 xoffset, yoffset, 0, 2842 width, height, 1, 2843 format, type, pixels); 2844} 2845 2846 2847 2848void GLAPIENTRY 2849_mesa_TexSubImage3D( GLenum target, GLint level, 2850 GLint xoffset, GLint yoffset, GLint zoffset, 2851 GLsizei width, GLsizei height, GLsizei depth, 2852 GLenum format, GLenum type, 2853 const GLvoid *pixels ) 2854{ 2855 GET_CURRENT_CONTEXT(ctx); 2856 texsubimage(ctx, 3, target, level, 2857 xoffset, yoffset, zoffset, 2858 width, height, depth, 2859 format, type, pixels); 2860} 2861 2862 2863 2864/** 2865 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 2866 * from. This depends on whether the texture contains color or depth values. 2867 */ 2868static struct gl_renderbuffer * 2869get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 2870{ 2871 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 2872 /* reading from depth/stencil buffer */ 2873 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 2874 } 2875 else { 2876 /* copying from color buffer */ 2877 return ctx->ReadBuffer->_ColorReadBuffer; 2878 } 2879} 2880 2881 2882 2883/** 2884 * Implement the glCopyTexImage1/2D() functions. 2885 */ 2886static void 2887copyteximage(struct gl_context *ctx, GLuint dims, 2888 GLenum target, GLint level, GLenum internalFormat, 2889 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 2890{ 2891 struct gl_texture_object *texObj; 2892 struct gl_texture_image *texImage; 2893 const GLuint face = _mesa_tex_target_to_face(target); 2894 2895 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2896 2897 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2898 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 2899 dims, 2900 _mesa_lookup_enum_by_nr(target), level, 2901 _mesa_lookup_enum_by_nr(internalFormat), 2902 x, y, width, height, border); 2903 2904 if (ctx->NewState & NEW_COPY_TEX_STATE) 2905 _mesa_update_state(ctx); 2906 2907 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 2908 width, height, border)) 2909 return; 2910 2911 texObj = _mesa_get_current_tex_object(ctx, target); 2912 2913 if (border && ctx->Const.StripTextureBorder) { 2914 x += border; 2915 width -= border * 2; 2916 if (dims == 2) { 2917 y += border; 2918 height -= border * 2; 2919 } 2920 border = 0; 2921 } 2922 2923 _mesa_lock_texture(ctx, texObj); 2924 { 2925 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2926 2927 if (!texImage) { 2928 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2929 } 2930 else { 2931 /* choose actual hw format */ 2932 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2933 target, level, 2934 internalFormat, 2935 GL_NONE, GL_NONE); 2936 2937 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 2938 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 2939 2940 /* Free old texture image */ 2941 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2942 2943 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 2944 border, internalFormat, texFormat); 2945 2946 /* Allocate texture memory (no pixel data yet) */ 2947 ctx->Driver.TexImage(ctx, dims, texImage, 2948 GL_NONE, GL_NONE, 2949 NULL, &ctx->Unpack); 2950 2951 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 2952 &width, &height)) { 2953 struct gl_renderbuffer *srcRb = 2954 get_copy_tex_image_source(ctx, texImage->TexFormat); 2955 2956 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 2957 srcRb, srcX, srcY, width, height); 2958 } 2959 2960 check_gen_mipmap(ctx, target, texObj, level); 2961 2962 _mesa_update_fbo_texture(ctx, texObj, face, level); 2963 2964 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2965 } 2966 else { 2967 /* probably too large of image */ 2968 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2969 } 2970 } 2971 } 2972 _mesa_unlock_texture(ctx, texObj); 2973} 2974 2975 2976 2977void GLAPIENTRY 2978_mesa_CopyTexImage1D( GLenum target, GLint level, 2979 GLenum internalFormat, 2980 GLint x, GLint y, 2981 GLsizei width, GLint border ) 2982{ 2983 GET_CURRENT_CONTEXT(ctx); 2984 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 2985} 2986 2987 2988 2989void GLAPIENTRY 2990_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 2991 GLint x, GLint y, GLsizei width, GLsizei height, 2992 GLint border ) 2993{ 2994 GET_CURRENT_CONTEXT(ctx); 2995 copyteximage(ctx, 2, target, level, internalFormat, 2996 x, y, width, height, border); 2997} 2998 2999 3000 3001/** 3002 * Implementation for glCopyTexSubImage1/2/3D() functions. 3003 */ 3004static void 3005copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3006 GLint xoffset, GLint yoffset, GLint zoffset, 3007 GLint x, GLint y, GLsizei width, GLsizei height) 3008{ 3009 struct gl_texture_object *texObj; 3010 struct gl_texture_image *texImage; 3011 3012 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3013 3014 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3015 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3016 dims, 3017 _mesa_lookup_enum_by_nr(target), 3018 level, xoffset, yoffset, zoffset, x, y, width, height); 3019 3020 if (ctx->NewState & NEW_COPY_TEX_STATE) 3021 _mesa_update_state(ctx); 3022 3023 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3024 return; 3025 3026 texObj = _mesa_get_current_tex_object(ctx, target); 3027 3028 _mesa_lock_texture(ctx, texObj); 3029 { 3030 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3031 3032 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3033 zoffset, width, height, texImage)) { 3034 /* error was recored */ 3035 } 3036 else { 3037 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3038 switch (dims) { 3039 case 3: 3040 if (target != GL_TEXTURE_2D_ARRAY) 3041 zoffset += texImage->Border; 3042 /* fall-through */ 3043 case 2: 3044 if (target != GL_TEXTURE_1D_ARRAY) 3045 yoffset += texImage->Border; 3046 /* fall-through */ 3047 case 1: 3048 xoffset += texImage->Border; 3049 } 3050 3051 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3052 &width, &height)) { 3053 struct gl_renderbuffer *srcRb = 3054 get_copy_tex_image_source(ctx, texImage->TexFormat); 3055 3056 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3057 xoffset, yoffset, zoffset, 3058 srcRb, x, y, width, height); 3059 3060 check_gen_mipmap(ctx, target, texObj, level); 3061 3062 ctx->NewState |= _NEW_TEXTURE; 3063 } 3064 } 3065 } 3066 _mesa_unlock_texture(ctx, texObj); 3067} 3068 3069 3070void GLAPIENTRY 3071_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3072 GLint xoffset, GLint x, GLint y, GLsizei width ) 3073{ 3074 GET_CURRENT_CONTEXT(ctx); 3075 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3076} 3077 3078 3079 3080void GLAPIENTRY 3081_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3082 GLint xoffset, GLint yoffset, 3083 GLint x, GLint y, GLsizei width, GLsizei height ) 3084{ 3085 GET_CURRENT_CONTEXT(ctx); 3086 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3087 width, height); 3088} 3089 3090 3091 3092void GLAPIENTRY 3093_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3094 GLint xoffset, GLint yoffset, GLint zoffset, 3095 GLint x, GLint y, GLsizei width, GLsizei height ) 3096{ 3097 GET_CURRENT_CONTEXT(ctx); 3098 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3099 x, y, width, height); 3100} 3101 3102 3103 3104 3105/**********************************************************************/ 3106/****** Compressed Textures ******/ 3107/**********************************************************************/ 3108 3109 3110/** 3111 * Return expected size of a compressed texture. 3112 */ 3113static GLuint 3114compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 3115 GLenum glformat) 3116{ 3117 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3118 return _mesa_format_image_size(mesaFormat, width, height, depth); 3119} 3120 3121 3122/* 3123 * Return compressed texture block size, in pixels. 3124 */ 3125static void 3126get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 3127{ 3128 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3129 _mesa_get_format_block_size(mesaFormat, bw, bh); 3130} 3131 3132 3133/** 3134 * Error checking for glCompressedTexImage[123]D(). 3135 * \param reason returns reason for error, if any 3136 * \return error code or GL_NO_ERROR. 3137 */ 3138static GLenum 3139compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 3140 GLenum target, GLint level, 3141 GLenum internalFormat, GLsizei width, 3142 GLsizei height, GLsizei depth, GLint border, 3143 GLsizei imageSize, char **reason) 3144{ 3145 const GLenum proxyTarget = get_proxy_target(target); 3146 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 3147 GLint expectedSize; 3148 GLenum choose_format; 3149 GLenum choose_type; 3150 GLenum proxy_format; 3151 3152 *reason = ""; /* no error */ 3153 3154 if (!target_can_be_compressed(ctx, target, internalFormat)) { 3155 *reason = "target"; 3156 return GL_INVALID_ENUM; 3157 } 3158 3159 /* This will detect any invalid internalFormat value */ 3160 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 3161 *reason = "internalFormat"; 3162 return GL_INVALID_ENUM; 3163 } 3164 3165 switch (internalFormat) { 3166#if FEATURE_ES 3167 case GL_PALETTE4_RGB8_OES: 3168 case GL_PALETTE4_RGBA8_OES: 3169 case GL_PALETTE4_R5_G6_B5_OES: 3170 case GL_PALETTE4_RGBA4_OES: 3171 case GL_PALETTE4_RGB5_A1_OES: 3172 case GL_PALETTE8_RGB8_OES: 3173 case GL_PALETTE8_RGBA8_OES: 3174 case GL_PALETTE8_R5_G6_B5_OES: 3175 case GL_PALETTE8_RGBA4_OES: 3176 case GL_PALETTE8_RGB5_A1_OES: 3177 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 3178 &choose_type); 3179 proxy_format = choose_format; 3180 3181 /* check level */ 3182 if (level > 0 || level < -maxLevels) { 3183 *reason = "level"; 3184 return GL_INVALID_VALUE; 3185 } 3186 3187 if (dimensions != 2) { 3188 *reason = "compressed paletted textures must be 2D"; 3189 return GL_INVALID_OPERATION; 3190 } 3191 3192 /* Figure out the expected texture size (in bytes). This will be 3193 * checked against the actual size later. 3194 */ 3195 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 3196 width, height); 3197 3198 /* This is for the benefit of the TestProxyTexImage below. It expects 3199 * level to be non-negative. OES_compressed_paletted_texture uses a 3200 * weird mechanism where the level specified to glCompressedTexImage2D 3201 * is -(n-1) number of levels in the texture, and the data specifies the 3202 * complete mipmap stack. This is done to ensure the palette is the 3203 * same for all levels. 3204 */ 3205 level = -level; 3206 break; 3207#endif 3208 3209 default: 3210 choose_format = GL_NONE; 3211 choose_type = GL_NONE; 3212 proxy_format = internalFormat; 3213 3214 /* check level */ 3215 if (level < 0 || level >= maxLevels) { 3216 *reason = "level"; 3217 return GL_INVALID_VALUE; 3218 } 3219 3220 /* Figure out the expected texture size (in bytes). This will be 3221 * checked against the actual size later. 3222 */ 3223 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 3224 break; 3225 } 3226 3227 /* This should really never fail */ 3228 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 3229 *reason = "internalFormat"; 3230 return GL_INVALID_ENUM; 3231 } 3232 3233 /* No compressed formats support borders at this time */ 3234 if (border != 0) { 3235 *reason = "border != 0"; 3236 return GL_INVALID_VALUE; 3237 } 3238 3239 /* For cube map, width must equal height */ 3240 if (_mesa_is_cube_face(target) && width != height) { 3241 *reason = "width != height"; 3242 return GL_INVALID_VALUE; 3243 } 3244 3245 /* check image size against compression block size */ 3246 { 3247 gl_format texFormat = 3248 ctx->Driver.ChooseTextureFormat(ctx, proxy_format, 3249 choose_format, choose_type); 3250 GLuint bw, bh; 3251 3252 _mesa_get_format_block_size(texFormat, &bw, &bh); 3253 if ((width > bw && width % bw > 0) || 3254 (height > bh && height % bh > 0)) { 3255 /* 3256 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is 3257 * generated [...] if any parameter combinations are not 3258 * supported by the specific compressed internal format. 3259 */ 3260 *reason = "invalid width or height for compression format"; 3261 return GL_INVALID_OPERATION; 3262 } 3263 } 3264 3265 /* check image sizes */ 3266 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 3267 proxy_format, choose_format, 3268 choose_type, 3269 width, height, depth, border)) { 3270 /* See error comment above */ 3271 *reason = "invalid width, height or format"; 3272 return GL_INVALID_OPERATION; 3273 } 3274 3275 /* check image size in bytes */ 3276 if (expectedSize != imageSize) { 3277 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 3278 * if <imageSize> is not consistent with the format, dimensions, and 3279 * contents of the specified image. 3280 */ 3281 *reason = "imageSize inconsistant with width/height/format"; 3282 return GL_INVALID_VALUE; 3283 } 3284 3285 if (!mutable_tex_object(ctx, target)) { 3286 *reason = "immutable texture"; 3287 return GL_INVALID_OPERATION; 3288 } 3289 3290 return GL_NO_ERROR; 3291} 3292 3293 3294/** 3295 * Error checking for glCompressedTexSubImage[123]D(). 3296 * \warning There are some bad assumptions here about the size of compressed 3297 * texture tiles (multiple of 4) used to test the validity of the 3298 * offset and size parameters. 3299 * \return error code or GL_NO_ERROR. 3300 */ 3301static GLenum 3302compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3303 GLenum target, GLint level, 3304 GLint xoffset, GLint yoffset, GLint zoffset, 3305 GLsizei width, GLsizei height, GLsizei depth, 3306 GLenum format, GLsizei imageSize) 3307{ 3308 GLint expectedSize, maxLevels = 0, maxTextureSize; 3309 GLuint bw, bh; 3310 (void) zoffset; 3311 3312 if (dimensions == 1) { 3313 /* 1D compressed textures not allowed */ 3314 return GL_INVALID_ENUM; 3315 } 3316 else if (dimensions == 2) { 3317 if (target == GL_PROXY_TEXTURE_2D) { 3318 maxLevels = ctx->Const.MaxTextureLevels; 3319 } 3320 else if (target == GL_TEXTURE_2D) { 3321 maxLevels = ctx->Const.MaxTextureLevels; 3322 } 3323 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3324 if (!ctx->Extensions.ARB_texture_cube_map) 3325 return GL_INVALID_ENUM; /*target*/ 3326 maxLevels = ctx->Const.MaxCubeTextureLevels; 3327 } 3328 else if (_mesa_is_cube_face(target)) { 3329 if (!ctx->Extensions.ARB_texture_cube_map) 3330 return GL_INVALID_ENUM; /*target*/ 3331 maxLevels = ctx->Const.MaxCubeTextureLevels; 3332 } 3333 else { 3334 return GL_INVALID_ENUM; /*target*/ 3335 } 3336 } 3337 else if (dimensions == 3) { 3338 /* 3D compressed textures not allowed */ 3339 return GL_INVALID_ENUM; 3340 } 3341 3342 maxTextureSize = 1 << (maxLevels - 1); 3343 3344 /* this will catch any invalid compressed format token */ 3345 if (!_mesa_is_compressed_format(ctx, format)) 3346 return GL_INVALID_ENUM; 3347 3348 if (width < 1 || width > maxTextureSize) 3349 return GL_INVALID_VALUE; 3350 3351 if ((height < 1 || height > maxTextureSize) 3352 && dimensions > 1) 3353 return GL_INVALID_VALUE; 3354 3355 if (level < 0 || level >= maxLevels) 3356 return GL_INVALID_VALUE; 3357 3358 /* 3359 * do checks which depend on compression block size 3360 */ 3361 get_compressed_block_size(format, &bw, &bh); 3362 3363 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3364 return GL_INVALID_VALUE; 3365 3366 if ((width % bw != 0) && width != 2 && width != 1) 3367 return GL_INVALID_VALUE; 3368 3369 if ((height % bh != 0) && height != 2 && height != 1) 3370 return GL_INVALID_VALUE; 3371 3372 expectedSize = compressed_tex_size(width, height, depth, format); 3373 if (expectedSize != imageSize) 3374 return GL_INVALID_VALUE; 3375 3376 return GL_NO_ERROR; 3377} 3378 3379 3380/** 3381 * Do second part of glCompressedTexSubImage error checking. 3382 * \return GL_TRUE if error found, GL_FALSE otherwise. 3383 */ 3384static GLboolean 3385compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3386 GLsizei width, GLsizei height, 3387 GLsizei depth, GLenum format, 3388 struct gl_texture_image *texImage) 3389{ 3390 3391 if ((GLint) format != texImage->InternalFormat) { 3392 _mesa_error(ctx, GL_INVALID_OPERATION, 3393 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3394 return GL_TRUE; 3395 } 3396 3397 if (compressedteximage_only_format(ctx, format)) { 3398 _mesa_error(ctx, GL_INVALID_OPERATION, 3399 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3400 , dims, format); 3401 return GL_TRUE; 3402 } 3403 3404 if (((width == 1 || width == 2) && 3405 width != (GLsizei) texImage->Width) || 3406 (width > (GLsizei) texImage->Width)) { 3407 _mesa_error(ctx, GL_INVALID_VALUE, 3408 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3409 return GL_TRUE; 3410 } 3411 3412 if (dims >= 2) { 3413 if (((height == 1 || height == 2) && 3414 height != (GLsizei) texImage->Height) || 3415 (height > (GLsizei) texImage->Height)) { 3416 _mesa_error(ctx, GL_INVALID_VALUE, 3417 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3418 return GL_TRUE; 3419 } 3420 } 3421 3422 if (dims >= 3) { 3423 if (((depth == 1 || depth == 2) && 3424 depth != (GLsizei) texImage->Depth) || 3425 (depth > (GLsizei) texImage->Depth)) { 3426 _mesa_error(ctx, GL_INVALID_VALUE, 3427 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3428 return GL_TRUE; 3429 } 3430 } 3431 3432 return GL_FALSE; 3433} 3434 3435 3436/** 3437 * Implementation of the glCompressedTexImage1/2/3D() functions. 3438 */ 3439static void 3440compressedteximage(struct gl_context *ctx, GLuint dims, 3441 GLenum target, GLint level, 3442 GLenum internalFormat, GLsizei width, 3443 GLsizei height, GLsizei depth, GLint border, 3444 GLsizei imageSize, const GLvoid *data) 3445{ 3446 GLenum error; 3447 char *reason = ""; 3448 3449 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3450 3451 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3452 _mesa_debug(ctx, 3453 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n", 3454 dims, 3455 _mesa_lookup_enum_by_nr(target), level, 3456 _mesa_lookup_enum_by_nr(internalFormat), 3457 width, height, depth, border, imageSize, data); 3458 3459 /* check target */ 3460 if (!legal_teximage_target(ctx, dims, target)) { 3461 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)", 3462 dims, _mesa_lookup_enum_by_nr(target)); 3463 return; 3464 } 3465 3466 error = compressed_texture_error_check(ctx, dims, target, level, 3467 internalFormat, width, height, depth, 3468 border, imageSize, &reason); 3469 3470#if FEATURE_ES 3471 /* XXX this is kind of a hack */ 3472 if (!error && dims == 2) { 3473 switch (internalFormat) { 3474 case GL_PALETTE4_RGB8_OES: 3475 case GL_PALETTE4_RGBA8_OES: 3476 case GL_PALETTE4_R5_G6_B5_OES: 3477 case GL_PALETTE4_RGBA4_OES: 3478 case GL_PALETTE4_RGB5_A1_OES: 3479 case GL_PALETTE8_RGB8_OES: 3480 case GL_PALETTE8_RGBA8_OES: 3481 case GL_PALETTE8_R5_G6_B5_OES: 3482 case GL_PALETTE8_RGBA4_OES: 3483 case GL_PALETTE8_RGB5_A1_OES: 3484 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 3485 width, height, imageSize, data); 3486 return; 3487 } 3488 } 3489#endif 3490 3491 if (_mesa_is_proxy_texture(target)) { 3492 /* Proxy texture: just check for errors and update proxy state */ 3493 struct gl_texture_image *texImage; 3494 3495 if (!error) { 3496 struct gl_texture_object *texObj = 3497 _mesa_get_current_tex_object(ctx, target); 3498 gl_format texFormat = 3499 _mesa_choose_texture_format(ctx, texObj, target, level, 3500 internalFormat, GL_NONE, GL_NONE); 3501 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 3502 error = GL_OUT_OF_MEMORY; 3503 } 3504 } 3505 3506 texImage = _mesa_get_proxy_tex_image(ctx, target, level); 3507 if (texImage) { 3508 if (error) { 3509 /* if error, clear all proxy texture image parameters */ 3510 clear_teximage_fields(texImage); 3511 } 3512 else { 3513 /* no error: store the teximage parameters */ 3514 _mesa_init_teximage_fields(ctx, texImage, width, height, 3515 depth, border, internalFormat, 3516 MESA_FORMAT_NONE); 3517 } 3518 } 3519 } 3520 else { 3521 /* non-proxy target */ 3522 struct gl_texture_object *texObj; 3523 struct gl_texture_image *texImage; 3524 3525 if (error) { 3526 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason); 3527 return; 3528 } 3529 3530 texObj = _mesa_get_current_tex_object(ctx, target); 3531 3532 _mesa_lock_texture(ctx, texObj); 3533 { 3534 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3535 if (!texImage) { 3536 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3537 "glCompressedTexImage%uD", dims); 3538 } 3539 else { 3540 gl_format texFormat; 3541 3542 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3543 3544 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3545 internalFormat, GL_NONE, 3546 GL_NONE); 3547 3548 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3549 _mesa_init_teximage_fields(ctx, texImage, 3550 width, height, depth, 3551 border, internalFormat, texFormat); 3552 3553 ctx->Driver.CompressedTexImage(ctx, dims, texImage, 3554 internalFormat, 3555 width, height, depth, 3556 border, imageSize, data); 3557 3558 check_gen_mipmap(ctx, target, texObj, level); 3559 3560 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3561 } 3562 else { 3563 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3564 "glCompressedTexImage%uD", dims); 3565 } 3566 } 3567 } 3568 _mesa_unlock_texture(ctx, texObj); 3569 } 3570} 3571 3572 3573void GLAPIENTRY 3574_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3575 GLenum internalFormat, GLsizei width, 3576 GLint border, GLsizei imageSize, 3577 const GLvoid *data) 3578{ 3579 GET_CURRENT_CONTEXT(ctx); 3580 compressedteximage(ctx, 1, target, level, internalFormat, 3581 width, 1, 1, border, imageSize, data); 3582} 3583 3584 3585void GLAPIENTRY 3586_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3587 GLenum internalFormat, GLsizei width, 3588 GLsizei height, GLint border, GLsizei imageSize, 3589 const GLvoid *data) 3590{ 3591 GET_CURRENT_CONTEXT(ctx); 3592 compressedteximage(ctx, 2, target, level, internalFormat, 3593 width, height, 1, border, imageSize, data); 3594} 3595 3596 3597void GLAPIENTRY 3598_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3599 GLenum internalFormat, GLsizei width, 3600 GLsizei height, GLsizei depth, GLint border, 3601 GLsizei imageSize, const GLvoid *data) 3602{ 3603 GET_CURRENT_CONTEXT(ctx); 3604 compressedteximage(ctx, 3, target, level, internalFormat, 3605 width, height, depth, border, imageSize, data); 3606} 3607 3608 3609/** 3610 * Common helper for glCompressedTexSubImage1/2/3D(). 3611 */ 3612static void 3613compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3614 GLint xoffset, GLint yoffset, GLint zoffset, 3615 GLsizei width, GLsizei height, GLsizei depth, 3616 GLenum format, GLsizei imageSize, const GLvoid *data) 3617{ 3618 struct gl_texture_object *texObj; 3619 struct gl_texture_image *texImage; 3620 GLenum error; 3621 GET_CURRENT_CONTEXT(ctx); 3622 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3623 3624 error = compressed_subtexture_error_check(ctx, dims, target, level, 3625 xoffset, 0, 0, /* pos */ 3626 width, height, depth, /* size */ 3627 format, imageSize); 3628 if (error) { 3629 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3630 return; 3631 } 3632 3633 texObj = _mesa_get_current_tex_object(ctx, target); 3634 3635 _mesa_lock_texture(ctx, texObj); 3636 { 3637 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3638 assert(texImage); 3639 3640 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3641 format, texImage)) { 3642 /* error was recorded */ 3643 } 3644 else if (width > 0 && height > 0 && depth > 0) { 3645 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3646 xoffset, yoffset, zoffset, 3647 width, height, depth, 3648 format, imageSize, data); 3649 3650 check_gen_mipmap(ctx, target, texObj, level); 3651 3652 ctx->NewState |= _NEW_TEXTURE; 3653 } 3654 } 3655 _mesa_unlock_texture(ctx, texObj); 3656} 3657 3658 3659void GLAPIENTRY 3660_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3661 GLsizei width, GLenum format, 3662 GLsizei imageSize, const GLvoid *data) 3663{ 3664 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3665 format, imageSize, data); 3666} 3667 3668 3669void GLAPIENTRY 3670_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3671 GLint yoffset, GLsizei width, GLsizei height, 3672 GLenum format, GLsizei imageSize, 3673 const GLvoid *data) 3674{ 3675 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3676 width, height, 1, format, imageSize, data); 3677} 3678 3679 3680void GLAPIENTRY 3681_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3682 GLint yoffset, GLint zoffset, GLsizei width, 3683 GLsizei height, GLsizei depth, GLenum format, 3684 GLsizei imageSize, const GLvoid *data) 3685{ 3686 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3687 width, height, depth, format, imageSize, data); 3688} 3689 3690static gl_format 3691get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3692{ 3693 switch (internalFormat) { 3694 case GL_ALPHA8: 3695 return MESA_FORMAT_A8; 3696 case GL_ALPHA16: 3697 return MESA_FORMAT_A16; 3698 case GL_ALPHA16F_ARB: 3699 return MESA_FORMAT_ALPHA_FLOAT16; 3700 case GL_ALPHA32F_ARB: 3701 return MESA_FORMAT_ALPHA_FLOAT32; 3702 case GL_ALPHA8I_EXT: 3703 return MESA_FORMAT_ALPHA_INT8; 3704 case GL_ALPHA16I_EXT: 3705 return MESA_FORMAT_ALPHA_INT16; 3706 case GL_ALPHA32I_EXT: 3707 return MESA_FORMAT_ALPHA_INT32; 3708 case GL_ALPHA8UI_EXT: 3709 return MESA_FORMAT_ALPHA_UINT8; 3710 case GL_ALPHA16UI_EXT: 3711 return MESA_FORMAT_ALPHA_UINT16; 3712 case GL_ALPHA32UI_EXT: 3713 return MESA_FORMAT_ALPHA_UINT32; 3714 case GL_LUMINANCE8: 3715 return MESA_FORMAT_L8; 3716 case GL_LUMINANCE16: 3717 return MESA_FORMAT_L16; 3718 case GL_LUMINANCE16F_ARB: 3719 return MESA_FORMAT_LUMINANCE_FLOAT16; 3720 case GL_LUMINANCE32F_ARB: 3721 return MESA_FORMAT_LUMINANCE_FLOAT32; 3722 case GL_LUMINANCE8I_EXT: 3723 return MESA_FORMAT_LUMINANCE_INT8; 3724 case GL_LUMINANCE16I_EXT: 3725 return MESA_FORMAT_LUMINANCE_INT16; 3726 case GL_LUMINANCE32I_EXT: 3727 return MESA_FORMAT_LUMINANCE_INT32; 3728 case GL_LUMINANCE8UI_EXT: 3729 return MESA_FORMAT_LUMINANCE_UINT8; 3730 case GL_LUMINANCE16UI_EXT: 3731 return MESA_FORMAT_LUMINANCE_UINT16; 3732 case GL_LUMINANCE32UI_EXT: 3733 return MESA_FORMAT_LUMINANCE_UINT32; 3734 case GL_LUMINANCE8_ALPHA8: 3735 return MESA_FORMAT_AL88; 3736 case GL_LUMINANCE16_ALPHA16: 3737 return MESA_FORMAT_AL1616; 3738 case GL_LUMINANCE_ALPHA16F_ARB: 3739 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3740 case GL_LUMINANCE_ALPHA32F_ARB: 3741 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3742 case GL_LUMINANCE_ALPHA8I_EXT: 3743 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3744 case GL_LUMINANCE_ALPHA16I_EXT: 3745 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3746 case GL_LUMINANCE_ALPHA32I_EXT: 3747 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3748 case GL_LUMINANCE_ALPHA8UI_EXT: 3749 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3750 case GL_LUMINANCE_ALPHA16UI_EXT: 3751 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3752 case GL_LUMINANCE_ALPHA32UI_EXT: 3753 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3754 case GL_INTENSITY8: 3755 return MESA_FORMAT_I8; 3756 case GL_INTENSITY16: 3757 return MESA_FORMAT_I16; 3758 case GL_INTENSITY16F_ARB: 3759 return MESA_FORMAT_INTENSITY_FLOAT16; 3760 case GL_INTENSITY32F_ARB: 3761 return MESA_FORMAT_INTENSITY_FLOAT32; 3762 case GL_INTENSITY8I_EXT: 3763 return MESA_FORMAT_INTENSITY_INT8; 3764 case GL_INTENSITY16I_EXT: 3765 return MESA_FORMAT_INTENSITY_INT16; 3766 case GL_INTENSITY32I_EXT: 3767 return MESA_FORMAT_INTENSITY_INT32; 3768 case GL_INTENSITY8UI_EXT: 3769 return MESA_FORMAT_INTENSITY_UINT8; 3770 case GL_INTENSITY16UI_EXT: 3771 return MESA_FORMAT_INTENSITY_UINT16; 3772 case GL_INTENSITY32UI_EXT: 3773 return MESA_FORMAT_INTENSITY_UINT32; 3774 case GL_RGBA8: 3775 return MESA_FORMAT_RGBA8888_REV; 3776 case GL_RGBA16: 3777 return MESA_FORMAT_RGBA_16; 3778 case GL_RGBA16F_ARB: 3779 return MESA_FORMAT_RGBA_FLOAT16; 3780 case GL_RGBA32F_ARB: 3781 return MESA_FORMAT_RGBA_FLOAT32; 3782 case GL_RGBA8I_EXT: 3783 return MESA_FORMAT_RGBA_INT8; 3784 case GL_RGBA16I_EXT: 3785 return MESA_FORMAT_RGBA_INT16; 3786 case GL_RGBA32I_EXT: 3787 return MESA_FORMAT_RGBA_INT32; 3788 case GL_RGBA8UI_EXT: 3789 return MESA_FORMAT_RGBA_UINT8; 3790 case GL_RGBA16UI_EXT: 3791 return MESA_FORMAT_RGBA_UINT16; 3792 case GL_RGBA32UI_EXT: 3793 return MESA_FORMAT_RGBA_UINT32; 3794 3795 case GL_RG8: 3796 return MESA_FORMAT_GR88; 3797 case GL_RG16: 3798 return MESA_FORMAT_RG1616; 3799 case GL_RG16F: 3800 return MESA_FORMAT_RG_FLOAT16; 3801 case GL_RG32F: 3802 return MESA_FORMAT_RG_FLOAT32; 3803 case GL_RG8I: 3804 return MESA_FORMAT_RG_INT8; 3805 case GL_RG16I: 3806 return MESA_FORMAT_RG_INT16; 3807 case GL_RG32I: 3808 return MESA_FORMAT_RG_INT32; 3809 case GL_RG8UI: 3810 return MESA_FORMAT_RG_UINT8; 3811 case GL_RG16UI: 3812 return MESA_FORMAT_RG_UINT16; 3813 case GL_RG32UI: 3814 return MESA_FORMAT_RG_UINT32; 3815 3816 case GL_R8: 3817 return MESA_FORMAT_R8; 3818 case GL_R16: 3819 return MESA_FORMAT_R16; 3820 case GL_R16F: 3821 return MESA_FORMAT_R_FLOAT16; 3822 case GL_R32F: 3823 return MESA_FORMAT_R_FLOAT32; 3824 case GL_R8I: 3825 return MESA_FORMAT_R_INT8; 3826 case GL_R16I: 3827 return MESA_FORMAT_R_INT16; 3828 case GL_R32I: 3829 return MESA_FORMAT_R_INT32; 3830 case GL_R8UI: 3831 return MESA_FORMAT_R_UINT8; 3832 case GL_R16UI: 3833 return MESA_FORMAT_R_UINT16; 3834 case GL_R32UI: 3835 return MESA_FORMAT_R_UINT32; 3836 3837 default: 3838 return MESA_FORMAT_NONE; 3839 } 3840} 3841 3842static gl_format 3843validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3844{ 3845 gl_format format = get_texbuffer_format(ctx, internalFormat); 3846 GLenum datatype; 3847 3848 if (format == MESA_FORMAT_NONE) 3849 return MESA_FORMAT_NONE; 3850 3851 datatype = _mesa_get_format_datatype(format); 3852 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3853 return MESA_FORMAT_NONE; 3854 3855 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3856 return MESA_FORMAT_NONE; 3857 3858 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3859 * any mention of R/RG formats, but they appear in the GL 3.1 core 3860 * specification. 3861 */ 3862 if (ctx->Version <= 30) { 3863 GLenum base_format = _mesa_get_format_base_format(format); 3864 3865 if (base_format == GL_R || base_format == GL_RG) 3866 return MESA_FORMAT_NONE; 3867 } 3868 return format; 3869} 3870 3871 3872/** GL_ARB_texture_buffer_object */ 3873void GLAPIENTRY 3874_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 3875{ 3876 struct gl_texture_object *texObj; 3877 struct gl_buffer_object *bufObj; 3878 gl_format format; 3879 3880 GET_CURRENT_CONTEXT(ctx); 3881 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3882 3883 if (!ctx->Extensions.ARB_texture_buffer_object) { 3884 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 3885 return; 3886 } 3887 3888 if (target != GL_TEXTURE_BUFFER_ARB) { 3889 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 3890 return; 3891 } 3892 3893 format = validate_texbuffer_format(ctx, internalFormat); 3894 if (format == MESA_FORMAT_NONE) { 3895 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 3896 internalFormat); 3897 return; 3898 } 3899 3900 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 3901 if (buffer && !bufObj) { 3902 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 3903 return; 3904 } 3905 3906 texObj = _mesa_get_current_tex_object(ctx, target); 3907 3908 _mesa_lock_texture(ctx, texObj); 3909 { 3910 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 3911 texObj->BufferObjectFormat = internalFormat; 3912 texObj->_BufferObjectFormat = format; 3913 } 3914 _mesa_unlock_texture(ctx, texObj); 3915} 3916