teximage.c revision 3df13b32e56dbc76bdc72b75ea1462f79b44dce9
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: 950 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 951 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 952 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 953 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 954 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 955 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 956 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 957 return ctx->Extensions.ARB_texture_cube_map 958 ? ctx->Const.MaxCubeTextureLevels : 0; 959 case GL_TEXTURE_RECTANGLE_NV: 960 case GL_PROXY_TEXTURE_RECTANGLE_NV: 961 return ctx->Extensions.NV_texture_rectangle ? 1 : 0; 962 case GL_TEXTURE_1D_ARRAY_EXT: 963 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 964 case GL_TEXTURE_2D_ARRAY_EXT: 965 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 966 return (ctx->Extensions.MESA_texture_array || 967 ctx->Extensions.EXT_texture_array) 968 ? ctx->Const.MaxTextureLevels : 0; 969 case GL_TEXTURE_BUFFER: 970 return _mesa_is_desktop_gl(ctx) && 971 (ctx->Extensions.ARB_texture_buffer_object || 972 (ctx->Version >= 31)) ? 1 : 0; 973 case GL_TEXTURE_EXTERNAL_OES: 974 /* fall-through */ 975 default: 976 return 0; /* bad target */ 977 } 978} 979 980 981/** 982 * Return number of dimensions per mipmap level for the given texture target. 983 */ 984GLint 985_mesa_get_texture_dimensions(GLenum target) 986{ 987 switch (target) { 988 case GL_TEXTURE_1D: 989 case GL_PROXY_TEXTURE_1D: 990 return 1; 991 case GL_TEXTURE_2D: 992 case GL_TEXTURE_RECTANGLE: 993 case GL_TEXTURE_CUBE_MAP: 994 case GL_PROXY_TEXTURE_2D: 995 case GL_PROXY_TEXTURE_RECTANGLE: 996 case GL_PROXY_TEXTURE_CUBE_MAP: 997 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 998 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 999 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1000 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1001 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1002 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1003 case GL_TEXTURE_1D_ARRAY: 1004 case GL_PROXY_TEXTURE_1D_ARRAY: 1005 case GL_TEXTURE_EXTERNAL_OES: 1006 return 2; 1007 case GL_TEXTURE_3D: 1008 case GL_PROXY_TEXTURE_3D: 1009 case GL_TEXTURE_2D_ARRAY: 1010 case GL_PROXY_TEXTURE_2D_ARRAY: 1011 return 3; 1012 case GL_TEXTURE_BUFFER: 1013 /* fall-through */ 1014 default: 1015 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", 1016 target); 1017 return 2; 1018 } 1019} 1020 1021 1022 1023 1024#if 000 /* not used anymore */ 1025/* 1026 * glTexImage[123]D can accept a NULL image pointer. In this case we 1027 * create a texture image with unspecified image contents per the OpenGL 1028 * spec. 1029 */ 1030static GLubyte * 1031make_null_texture(GLint width, GLint height, GLint depth, GLenum format) 1032{ 1033 const GLint components = _mesa_components_in_format(format); 1034 const GLint numPixels = width * height * depth; 1035 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); 1036 1037#ifdef DEBUG 1038 /* 1039 * Let's see if anyone finds this. If glTexImage2D() is called with 1040 * a NULL image pointer then load the texture image with something 1041 * interesting instead of leaving it indeterminate. 1042 */ 1043 if (data) { 1044 static const char message[8][32] = { 1045 " X X XXXXX XXX X ", 1046 " XX XX X X X X X ", 1047 " X X X X X X X ", 1048 " X X XXXX XXX XXXXX ", 1049 " X X X X X X ", 1050 " X X X X X X X ", 1051 " X X XXXXX XXX X X ", 1052 " " 1053 }; 1054 1055 GLubyte *imgPtr = data; 1056 GLint h, i, j, k; 1057 for (h = 0; h < depth; h++) { 1058 for (i = 0; i < height; i++) { 1059 GLint srcRow = 7 - (i % 8); 1060 for (j = 0; j < width; j++) { 1061 GLint srcCol = j % 32; 1062 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 1063 for (k = 0; k < components; k++) { 1064 *imgPtr++ = texel; 1065 } 1066 } 1067 } 1068 } 1069 } 1070#endif 1071 1072 return data; 1073} 1074#endif 1075 1076 1077 1078/** 1079 * Set the size and format-related fields of a gl_texture_image struct 1080 * to zero. This is used when a proxy texture test fails. 1081 */ 1082static void 1083clear_teximage_fields(struct gl_texture_image *img) 1084{ 1085 ASSERT(img); 1086 img->_BaseFormat = 0; 1087 img->InternalFormat = 0; 1088 img->Border = 0; 1089 img->Width = 0; 1090 img->Height = 0; 1091 img->Depth = 0; 1092 img->Width2 = 0; 1093 img->Height2 = 0; 1094 img->Depth2 = 0; 1095 img->WidthLog2 = 0; 1096 img->HeightLog2 = 0; 1097 img->DepthLog2 = 0; 1098 img->TexFormat = MESA_FORMAT_NONE; 1099} 1100 1101 1102/** 1103 * Initialize basic fields of the gl_texture_image struct. 1104 * 1105 * \param ctx GL context. 1106 * \param img texture image structure to be initialized. 1107 * \param width image width. 1108 * \param height image height. 1109 * \param depth image depth. 1110 * \param border image border. 1111 * \param internalFormat internal format. 1112 * \param format the actual hardware format (one of MESA_FORMAT_*) 1113 * 1114 * Fills in the fields of \p img with the given information. 1115 * Note: width, height and depth include the border. 1116 */ 1117void 1118_mesa_init_teximage_fields(struct gl_context *ctx, 1119 struct gl_texture_image *img, 1120 GLsizei width, GLsizei height, GLsizei depth, 1121 GLint border, GLenum internalFormat, 1122 gl_format format) 1123{ 1124 GLenum target; 1125 ASSERT(img); 1126 ASSERT(width >= 0); 1127 ASSERT(height >= 0); 1128 ASSERT(depth >= 0); 1129 1130 target = img->TexObject->Target; 1131 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); 1132 ASSERT(img->_BaseFormat > 0); 1133 img->InternalFormat = internalFormat; 1134 img->Border = border; 1135 img->Width = width; 1136 img->Height = height; 1137 img->Depth = depth; 1138 1139 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ 1140 img->WidthLog2 = _mesa_logbase2(img->Width2); 1141 1142 switch(target) { 1143 case GL_TEXTURE_1D: 1144 case GL_TEXTURE_BUFFER: 1145 case GL_PROXY_TEXTURE_1D: 1146 if (height == 0) 1147 img->Height2 = 0; 1148 else 1149 img->Height2 = 1; 1150 img->HeightLog2 = 0; 1151 if (depth == 0) 1152 img->Depth2 = 0; 1153 else 1154 img->Depth2 = 1; 1155 img->DepthLog2 = 0; 1156 break; 1157 case GL_TEXTURE_1D_ARRAY: 1158 case GL_PROXY_TEXTURE_1D_ARRAY: 1159 img->Height2 = height; /* no border */ 1160 img->HeightLog2 = 0; /* not used */ 1161 if (depth == 0) 1162 img->Depth2 = 0; 1163 else 1164 img->Depth2 = 1; 1165 img->DepthLog2 = 0; 1166 break; 1167 case GL_TEXTURE_2D: 1168 case GL_TEXTURE_RECTANGLE: 1169 case GL_TEXTURE_CUBE_MAP: 1170 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1171 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1172 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1173 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1174 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1175 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1176 case GL_TEXTURE_EXTERNAL_OES: 1177 case GL_PROXY_TEXTURE_2D: 1178 case GL_PROXY_TEXTURE_RECTANGLE: 1179 case GL_PROXY_TEXTURE_CUBE_MAP: 1180 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1181 img->HeightLog2 = _mesa_logbase2(img->Height2); 1182 if (depth == 0) 1183 img->Depth2 = 0; 1184 else 1185 img->Depth2 = 1; 1186 img->DepthLog2 = 0; 1187 break; 1188 case GL_TEXTURE_2D_ARRAY: 1189 case GL_PROXY_TEXTURE_2D_ARRAY: 1190 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1191 img->HeightLog2 = _mesa_logbase2(img->Height2); 1192 img->Depth2 = depth; /* no border */ 1193 img->DepthLog2 = 0; /* not used */ 1194 break; 1195 case GL_TEXTURE_3D: 1196 case GL_PROXY_TEXTURE_3D: 1197 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1198 img->HeightLog2 = _mesa_logbase2(img->Height2); 1199 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ 1200 img->DepthLog2 = _mesa_logbase2(img->Depth2); 1201 break; 1202 default: 1203 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()", 1204 target); 1205 } 1206 1207 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 1208 img->TexFormat = format; 1209} 1210 1211 1212/** 1213 * Free and clear fields of the gl_texture_image struct. 1214 * 1215 * \param ctx GL context. 1216 * \param texImage texture image structure to be cleared. 1217 * 1218 * After the call, \p texImage will have no data associated with it. Its 1219 * fields are cleared so that its parent object will test incomplete. 1220 */ 1221void 1222_mesa_clear_texture_image(struct gl_context *ctx, 1223 struct gl_texture_image *texImage) 1224{ 1225 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 1226 clear_teximage_fields(texImage); 1227} 1228 1229 1230/** 1231 * This is the fallback for Driver.TestProxyTexImage(). Test the texture 1232 * level, width, height and depth against the ctx->Const limits for textures. 1233 * 1234 * A hardware driver might override this function if, for example, the 1235 * max 3D texture size is 512x512x64 (i.e. not a cube). 1236 * 1237 * Note that width, height, depth == 0 is not an error. However, a 1238 * texture with zero width/height/depth will be considered "incomplete" 1239 * and texturing will effectively be disabled. 1240 * 1241 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, 1242 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, 1243 * GL_PROXY_TEXTURE_CUBE_MAP_ARB. 1244 * \param level as passed to glTexImage 1245 * \param internalFormat as passed to glTexImage 1246 * \param format as passed to glTexImage 1247 * \param type as passed to glTexImage 1248 * \param width as passed to glTexImage 1249 * \param height as passed to glTexImage 1250 * \param depth as passed to glTexImage 1251 * \param border as passed to glTexImage 1252 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. 1253 */ 1254GLboolean 1255_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, 1256 GLint internalFormat, GLenum format, GLenum type, 1257 GLint width, GLint height, GLint depth, GLint border) 1258{ 1259 GLint maxSize; 1260 1261 (void) internalFormat; 1262 (void) format; 1263 (void) type; 1264 1265 switch (target) { 1266 case GL_PROXY_TEXTURE_1D: 1267 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1268 if (width < 2 * border || width > 2 * border + maxSize) 1269 return GL_FALSE; 1270 if (level >= ctx->Const.MaxTextureLevels) 1271 return GL_FALSE; 1272 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1273 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1274 return GL_FALSE; 1275 } 1276 return GL_TRUE; 1277 1278 case GL_PROXY_TEXTURE_2D: 1279 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1280 if (width < 2 * border || width > 2 * border + maxSize) 1281 return GL_FALSE; 1282 if (height < 2 * border || height > 2 * border + maxSize) 1283 return GL_FALSE; 1284 if (level >= ctx->Const.MaxTextureLevels) 1285 return GL_FALSE; 1286 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1287 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1288 return GL_FALSE; 1289 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1290 return GL_FALSE; 1291 } 1292 return GL_TRUE; 1293 1294 case GL_PROXY_TEXTURE_3D: 1295 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1296 if (width < 2 * border || width > 2 * border + maxSize) 1297 return GL_FALSE; 1298 if (height < 2 * border || height > 2 * border + maxSize) 1299 return GL_FALSE; 1300 if (depth < 2 * border || depth > 2 * border + maxSize) 1301 return GL_FALSE; 1302 if (level >= ctx->Const.Max3DTextureLevels) 1303 return GL_FALSE; 1304 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1305 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1306 return GL_FALSE; 1307 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1308 return GL_FALSE; 1309 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1310 return GL_FALSE; 1311 } 1312 return GL_TRUE; 1313 1314 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1315 maxSize = ctx->Const.MaxTextureRectSize; 1316 if (width < 0 || width > maxSize) 1317 return GL_FALSE; 1318 if (height < 0 || height > maxSize) 1319 return GL_FALSE; 1320 if (level != 0) 1321 return GL_FALSE; 1322 return GL_TRUE; 1323 1324 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1325 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1326 if (width < 2 * border || width > 2 * border + maxSize) 1327 return GL_FALSE; 1328 if (height < 2 * border || height > 2 * border + maxSize) 1329 return GL_FALSE; 1330 if (level >= ctx->Const.MaxCubeTextureLevels) 1331 return GL_FALSE; 1332 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1333 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1334 return GL_FALSE; 1335 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1336 return GL_FALSE; 1337 } 1338 return GL_TRUE; 1339 1340 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1341 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1342 if (width < 2 * border || width > 2 * border + maxSize) 1343 return GL_FALSE; 1344 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1345 return GL_FALSE; 1346 if (level >= ctx->Const.MaxTextureLevels) 1347 return GL_FALSE; 1348 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1349 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1350 return GL_FALSE; 1351 } 1352 return GL_TRUE; 1353 1354 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1355 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1356 if (width < 2 * border || width > 2 * border + maxSize) 1357 return GL_FALSE; 1358 if (height < 2 * border || height > 2 * border + maxSize) 1359 return GL_FALSE; 1360 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1361 return GL_FALSE; 1362 if (level >= ctx->Const.MaxTextureLevels) 1363 return GL_FALSE; 1364 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1365 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1366 return GL_FALSE; 1367 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1368 return GL_FALSE; 1369 } 1370 return GL_TRUE; 1371 1372 default: 1373 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1374 return GL_FALSE; 1375 } 1376} 1377 1378 1379/** 1380 * Check if the memory used by the texture would exceed the driver's limit. 1381 * This lets us support a max 3D texture size of 8K (for example) but 1382 * prevents allocating a full 8K x 8K x 8K texture. 1383 * XXX this could be rolled into the proxy texture size test (above) but 1384 * we don't have the actual texture internal format at that point. 1385 */ 1386static GLboolean 1387legal_texture_size(struct gl_context *ctx, gl_format format, 1388 GLint width, GLint height, GLint depth) 1389{ 1390 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1391 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1392 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1393} 1394 1395 1396/** 1397 * Return true if the format is only valid for glCompressedTexImage. 1398 */ 1399static GLboolean 1400compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1401{ 1402 switch (format) { 1403 case GL_ETC1_RGB8_OES: 1404 return GL_TRUE; 1405 default: 1406 return GL_FALSE; 1407 } 1408} 1409 1410 1411/** 1412 * Helper function to determine whether a target and specific compression 1413 * format are supported. 1414 */ 1415static GLboolean 1416target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1417 GLenum intFormat) 1418{ 1419 (void) intFormat; /* not used yet */ 1420 1421 switch (target) { 1422 case GL_TEXTURE_2D: 1423 case GL_PROXY_TEXTURE_2D: 1424 return GL_TRUE; /* true for any compressed format so far */ 1425 case GL_PROXY_TEXTURE_CUBE_MAP: 1426 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1427 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1428 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1429 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1430 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1431 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1432 return ctx->Extensions.ARB_texture_cube_map; 1433 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1434 case GL_TEXTURE_2D_ARRAY_EXT: 1435 return (ctx->Extensions.MESA_texture_array || 1436 ctx->Extensions.EXT_texture_array); 1437 default: 1438 return GL_FALSE; 1439 } 1440} 1441 1442 1443/** 1444 * Check if the given texture target value is legal for a 1445 * glTexImage1/2/3D call. 1446 */ 1447static GLboolean 1448legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1449{ 1450 switch (dims) { 1451 case 1: 1452 switch (target) { 1453 case GL_TEXTURE_1D: 1454 case GL_PROXY_TEXTURE_1D: 1455 return GL_TRUE; 1456 default: 1457 return GL_FALSE; 1458 } 1459 case 2: 1460 switch (target) { 1461 case GL_TEXTURE_2D: 1462 case GL_PROXY_TEXTURE_2D: 1463 return GL_TRUE; 1464 case GL_PROXY_TEXTURE_CUBE_MAP: 1465 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1466 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1467 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1468 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1469 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1470 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1471 return ctx->Extensions.ARB_texture_cube_map; 1472 case GL_TEXTURE_RECTANGLE_NV: 1473 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1474 return ctx->Extensions.NV_texture_rectangle; 1475 case GL_TEXTURE_1D_ARRAY_EXT: 1476 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1477 return (ctx->Extensions.MESA_texture_array || 1478 ctx->Extensions.EXT_texture_array); 1479 default: 1480 return GL_FALSE; 1481 } 1482 case 3: 1483 switch (target) { 1484 case GL_TEXTURE_3D: 1485 case GL_PROXY_TEXTURE_3D: 1486 return GL_TRUE; 1487 case GL_TEXTURE_2D_ARRAY_EXT: 1488 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1489 return (ctx->Extensions.MESA_texture_array || 1490 ctx->Extensions.EXT_texture_array); 1491 default: 1492 return GL_FALSE; 1493 } 1494 default: 1495 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1496 return GL_FALSE; 1497 } 1498} 1499 1500 1501/** 1502 * Check if the given texture target value is legal for a 1503 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1504 * The difference compared to legal_teximage_target() above is that 1505 * proxy targets are not supported. 1506 */ 1507static GLboolean 1508legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1509{ 1510 switch (dims) { 1511 case 1: 1512 return target == GL_TEXTURE_1D; 1513 case 2: 1514 switch (target) { 1515 case GL_TEXTURE_2D: 1516 return GL_TRUE; 1517 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1518 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1519 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1520 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1521 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1522 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1523 return ctx->Extensions.ARB_texture_cube_map; 1524 case GL_TEXTURE_RECTANGLE_NV: 1525 return ctx->Extensions.NV_texture_rectangle; 1526 case GL_TEXTURE_1D_ARRAY_EXT: 1527 return (ctx->Extensions.MESA_texture_array || 1528 ctx->Extensions.EXT_texture_array); 1529 default: 1530 return GL_FALSE; 1531 } 1532 case 3: 1533 switch (target) { 1534 case GL_TEXTURE_3D: 1535 return GL_TRUE; 1536 case GL_TEXTURE_2D_ARRAY_EXT: 1537 return (ctx->Extensions.MESA_texture_array || 1538 ctx->Extensions.EXT_texture_array); 1539 default: 1540 return GL_FALSE; 1541 } 1542 default: 1543 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1544 dims); 1545 return GL_FALSE; 1546 } 1547} 1548 1549 1550/** 1551 * Helper function to determine if a texture object is mutable (in terms 1552 * of GL_ARB_texture_storage). 1553 */ 1554static GLboolean 1555mutable_tex_object(struct gl_context *ctx, GLenum target) 1556{ 1557 if (ctx->Extensions.ARB_texture_storage) { 1558 struct gl_texture_object *texObj = 1559 _mesa_get_current_tex_object(ctx, target); 1560 return !texObj->Immutable; 1561 } 1562 return GL_TRUE; 1563} 1564 1565 1566 1567/** 1568 * Test the glTexImage[123]D() parameters for errors. 1569 * 1570 * \param ctx GL context. 1571 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1572 * \param target texture target given by the user. 1573 * \param level image level given by the user. 1574 * \param internalFormat internal format given by the user. 1575 * \param format pixel data format given by the user. 1576 * \param type pixel data type given by the user. 1577 * \param width image width given by the user. 1578 * \param height image height given by the user. 1579 * \param depth image depth given by the user. 1580 * \param border image border given by the user. 1581 * 1582 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1583 * 1584 * Verifies each of the parameters against the constants specified in 1585 * __struct gl_contextRec::Const and the supported extensions, and according 1586 * to the OpenGL specification. 1587 */ 1588static GLboolean 1589texture_error_check( struct gl_context *ctx, 1590 GLuint dimensions, GLenum target, 1591 GLint level, GLint internalFormat, 1592 GLenum format, GLenum type, 1593 GLint width, GLint height, 1594 GLint depth, GLint border ) 1595{ 1596 const GLenum proxyTarget = get_proxy_target(target); 1597 const GLboolean isProxy = target == proxyTarget; 1598 GLboolean sizeOK = GL_TRUE; 1599 GLboolean colorFormat; 1600 GLenum err; 1601 1602 /* Even though there are no color-index textures, we still have to support 1603 * uploading color-index data and remapping it to RGB via the 1604 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1605 */ 1606 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1607 1608 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1609 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1610 if (!isProxy) { 1611 _mesa_error(ctx, GL_INVALID_VALUE, 1612 "glTexImage%dD(level=%d)", dimensions, level); 1613 } 1614 return GL_TRUE; 1615 } 1616 1617 /* Check border */ 1618 if (border < 0 || border > 1 || 1619 ((target == GL_TEXTURE_RECTANGLE_NV || 1620 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1621 if (!isProxy) { 1622 _mesa_error(ctx, GL_INVALID_VALUE, 1623 "glTexImage%dD(border=%d)", dimensions, border); 1624 } 1625 return GL_TRUE; 1626 } 1627 1628 if (width < 0 || height < 0 || depth < 0) { 1629 if (!isProxy) { 1630 _mesa_error(ctx, GL_INVALID_VALUE, 1631 "glTexImage%dD(width, height or depth < 0)", dimensions); 1632 } 1633 return GL_TRUE; 1634 } 1635 1636 /* Do this simple check before calling the TestProxyTexImage() function */ 1637 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1638 sizeOK = (width == height); 1639 } 1640 1641 /* 1642 * Use the proxy texture driver hook to see if the size/level/etc are 1643 * legal. 1644 */ 1645 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1646 internalFormat, format, 1647 type, width, height, 1648 depth, border); 1649 if (!sizeOK) { 1650 if (!isProxy) { 1651 _mesa_error(ctx, GL_INVALID_VALUE, 1652 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1653 dimensions, level, width, height, depth); 1654 } 1655 return GL_TRUE; 1656 } 1657 1658 /* Check internalFormat */ 1659 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1660 if (!isProxy) { 1661 _mesa_error(ctx, GL_INVALID_VALUE, 1662 "glTexImage%dD(internalFormat=%s)", 1663 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1664 } 1665 return GL_TRUE; 1666 } 1667 1668 /* Check incoming image format and type */ 1669 err = _mesa_error_check_format_and_type(ctx, format, type); 1670 if (err != GL_NO_ERROR) { 1671 if (!isProxy) { 1672 _mesa_error(ctx, err, 1673 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1674 dimensions, format, type); 1675 } 1676 return GL_TRUE; 1677 } 1678 1679 /* make sure internal format and format basically agree */ 1680 colorFormat = _mesa_is_color_format(format); 1681 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1682 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1683 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1684 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1685 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1686 if (!isProxy) 1687 _mesa_error(ctx, GL_INVALID_OPERATION, 1688 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1689 dimensions, internalFormat, format); 1690 return GL_TRUE; 1691 } 1692 1693 /* additional checks for ycbcr textures */ 1694 if (internalFormat == GL_YCBCR_MESA) { 1695 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1696 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1697 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1698 char message[100]; 1699 _mesa_snprintf(message, sizeof(message), 1700 "glTexImage%dD(format/type YCBCR mismatch", dimensions); 1701 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1702 return GL_TRUE; /* error */ 1703 } 1704 if (target != GL_TEXTURE_2D && 1705 target != GL_PROXY_TEXTURE_2D && 1706 target != GL_TEXTURE_RECTANGLE_NV && 1707 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1708 if (!isProxy) 1709 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)"); 1710 return GL_TRUE; 1711 } 1712 if (border != 0) { 1713 if (!isProxy) { 1714 char message[100]; 1715 _mesa_snprintf(message, sizeof(message), 1716 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1717 dimensions, border); 1718 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1719 } 1720 return GL_TRUE; 1721 } 1722 } 1723 1724 /* additional checks for depth textures */ 1725 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1726 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1727 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1728 if (target != GL_TEXTURE_1D && 1729 target != GL_PROXY_TEXTURE_1D && 1730 target != GL_TEXTURE_2D && 1731 target != GL_PROXY_TEXTURE_2D && 1732 target != GL_TEXTURE_1D_ARRAY && 1733 target != GL_PROXY_TEXTURE_1D_ARRAY && 1734 target != GL_TEXTURE_2D_ARRAY && 1735 target != GL_PROXY_TEXTURE_2D_ARRAY && 1736 target != GL_TEXTURE_RECTANGLE_ARB && 1737 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1738 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1739 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1740 if (!isProxy) 1741 _mesa_error(ctx, GL_INVALID_ENUM, 1742 "glTexImage(target/internalFormat)"); 1743 return GL_TRUE; 1744 } 1745 } 1746 1747 /* additional checks for compressed textures */ 1748 if (_mesa_is_compressed_format(ctx, internalFormat) || 1749 is_generic_compressed_format(internalFormat)) { 1750 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1751 if (!isProxy) 1752 _mesa_error(ctx, GL_INVALID_ENUM, 1753 "glTexImage%dD(target)", dimensions); 1754 return GL_TRUE; 1755 } 1756 if (compressedteximage_only_format(ctx, internalFormat)) { 1757 _mesa_error(ctx, GL_INVALID_OPERATION, 1758 "glTexImage%dD(no compression for format)", dimensions); 1759 return GL_TRUE; 1760 } 1761 if (border != 0) { 1762 if (!isProxy) { 1763 _mesa_error(ctx, GL_INVALID_OPERATION, 1764 "glTexImage%dD(border!=0)", dimensions); 1765 } 1766 return GL_TRUE; 1767 } 1768 } 1769 1770 /* additional checks for integer textures */ 1771 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1772 (_mesa_is_enum_format_integer(format) != 1773 _mesa_is_enum_format_integer(internalFormat))) { 1774 if (!isProxy) { 1775 _mesa_error(ctx, GL_INVALID_OPERATION, 1776 "glTexImage%dD(integer/non-integer format mismatch)", 1777 dimensions); 1778 } 1779 return GL_TRUE; 1780 } 1781 1782 if (!mutable_tex_object(ctx, target)) { 1783 _mesa_error(ctx, GL_INVALID_OPERATION, 1784 "glTexImage%dD(immutable texture)", dimensions); 1785 return GL_TRUE; 1786 } 1787 1788 /* if we get here, the parameters are OK */ 1789 return GL_FALSE; 1790} 1791 1792 1793/** 1794 * Test glTexSubImage[123]D() parameters for errors. 1795 * 1796 * \param ctx GL context. 1797 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1798 * \param target texture target given by the user. 1799 * \param level image level given by the user. 1800 * \param xoffset sub-image x offset given by the user. 1801 * \param yoffset sub-image y offset given by the user. 1802 * \param zoffset sub-image z offset given by the user. 1803 * \param format pixel data format given by the user. 1804 * \param type pixel data type given by the user. 1805 * \param width image width given by the user. 1806 * \param height image height given by the user. 1807 * \param depth image depth given by the user. 1808 * 1809 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1810 * 1811 * Verifies each of the parameters against the constants specified in 1812 * __struct gl_contextRec::Const and the supported extensions, and according 1813 * to the OpenGL specification. 1814 */ 1815static GLboolean 1816subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 1817 GLenum target, GLint level, 1818 GLint xoffset, GLint yoffset, GLint zoffset, 1819 GLint width, GLint height, GLint depth, 1820 GLenum format, GLenum type ) 1821{ 1822 GLenum err; 1823 1824 /* Basic level check */ 1825 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1826 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 1827 return GL_TRUE; 1828 } 1829 1830 /* Check for negative sizes */ 1831 if (width < 0) { 1832 _mesa_error(ctx, GL_INVALID_VALUE, 1833 "glTexSubImage%dD(width=%d)", dimensions, width); 1834 return GL_TRUE; 1835 } 1836 if (height < 0 && dimensions > 1) { 1837 _mesa_error(ctx, GL_INVALID_VALUE, 1838 "glTexSubImage%dD(height=%d)", dimensions, height); 1839 return GL_TRUE; 1840 } 1841 if (depth < 0 && dimensions > 2) { 1842 _mesa_error(ctx, GL_INVALID_VALUE, 1843 "glTexSubImage%dD(depth=%d)", dimensions, depth); 1844 return GL_TRUE; 1845 } 1846 1847 err = _mesa_error_check_format_and_type(ctx, format, type); 1848 if (err != GL_NO_ERROR) { 1849 _mesa_error(ctx, err, 1850 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 1851 dimensions, format, type); 1852 return GL_TRUE; 1853 } 1854 1855 return GL_FALSE; 1856} 1857 1858 1859/** 1860 * Do second part of glTexSubImage which depends on the destination texture. 1861 * \return GL_TRUE if error recorded, GL_FALSE otherwise 1862 */ 1863static GLboolean 1864subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 1865 GLenum target, GLint level, 1866 GLint xoffset, GLint yoffset, GLint zoffset, 1867 GLint width, GLint height, GLint depth, 1868 GLenum format, GLenum type, 1869 const struct gl_texture_image *destTex ) 1870{ 1871 if (!destTex) { 1872 /* undefined image level */ 1873 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 1874 return GL_TRUE; 1875 } 1876 1877 if (xoffset < -((GLint)destTex->Border)) { 1878 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 1879 dimensions); 1880 return GL_TRUE; 1881 } 1882 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 1883 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 1884 dimensions); 1885 return GL_TRUE; 1886 } 1887 if (dimensions > 1) { 1888 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 1889 if (yoffset < -yBorder) { 1890 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 1891 dimensions); 1892 return GL_TRUE; 1893 } 1894 if (yoffset + height > (GLint) destTex->Height + yBorder) { 1895 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 1896 dimensions); 1897 return GL_TRUE; 1898 } 1899 } 1900 if (dimensions > 2) { 1901 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 1902 if (zoffset < -zBorder) { 1903 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 1904 return GL_TRUE; 1905 } 1906 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 1907 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 1908 return GL_TRUE; 1909 } 1910 } 1911 1912 if (_mesa_is_format_compressed(destTex->TexFormat)) { 1913 GLuint bw, bh; 1914 1915 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 1916 _mesa_error(ctx, GL_INVALID_OPERATION, 1917 "glTexSubImage%dD(no compression for format)", dimensions); 1918 return GL_TRUE; 1919 } 1920 1921 /* do tests which depend on compression block size */ 1922 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 1923 1924 /* offset must be multiple of block size */ 1925 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 1926 _mesa_error(ctx, GL_INVALID_OPERATION, 1927 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 1928 dimensions, xoffset, yoffset); 1929 return GL_TRUE; 1930 } 1931 /* size must be multiple of bw by bh or equal to whole texture size */ 1932 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 1933 _mesa_error(ctx, GL_INVALID_OPERATION, 1934 "glTexSubImage%dD(width = %d)", dimensions, width); 1935 return GL_TRUE; 1936 } 1937 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 1938 _mesa_error(ctx, GL_INVALID_OPERATION, 1939 "glTexSubImage%dD(height = %d)", dimensions, height); 1940 return GL_TRUE; 1941 } 1942 } 1943 1944 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 1945 /* both source and dest must be integer-valued, or neither */ 1946 if (_mesa_is_format_integer_color(destTex->TexFormat) != 1947 _mesa_is_enum_format_integer(format)) { 1948 _mesa_error(ctx, GL_INVALID_OPERATION, 1949 "glTexSubImage%dD(integer/non-integer format mismatch)", 1950 dimensions); 1951 return GL_TRUE; 1952 } 1953 } 1954 1955 return GL_FALSE; 1956} 1957 1958 1959/** 1960 * Test glCopyTexImage[12]D() parameters for errors. 1961 * 1962 * \param ctx GL context. 1963 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1964 * \param target texture target given by the user. 1965 * \param level image level given by the user. 1966 * \param internalFormat internal format given by the user. 1967 * \param width image width given by the user. 1968 * \param height image height given by the user. 1969 * \param border texture border. 1970 * 1971 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1972 * 1973 * Verifies each of the parameters against the constants specified in 1974 * __struct gl_contextRec::Const and the supported extensions, and according 1975 * to the OpenGL specification. 1976 */ 1977static GLboolean 1978copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 1979 GLenum target, GLint level, GLint internalFormat, 1980 GLint width, GLint height, GLint border ) 1981{ 1982 const GLenum proxyTarget = get_proxy_target(target); 1983 const GLenum type = GL_FLOAT; 1984 GLboolean sizeOK; 1985 GLint baseFormat; 1986 1987 /* check target */ 1988 if (!legal_texsubimage_target(ctx, dimensions, target)) { 1989 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 1990 dimensions, _mesa_lookup_enum_by_nr(target)); 1991 return GL_TRUE; 1992 } 1993 1994 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1995 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1996 _mesa_error(ctx, GL_INVALID_VALUE, 1997 "glCopyTexImage%dD(level=%d)", dimensions, level); 1998 return GL_TRUE; 1999 } 2000 2001 /* Check that the source buffer is complete */ 2002 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2003 if (ctx->ReadBuffer->_Status == 0) { 2004 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2005 } 2006 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2007 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2008 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2009 return GL_TRUE; 2010 } 2011 2012 if (ctx->ReadBuffer->Visual.samples > 0) { 2013 _mesa_error(ctx, GL_INVALID_OPERATION, 2014 "glCopyTexImage%dD(multisample FBO)", 2015 dimensions); 2016 return GL_TRUE; 2017 } 2018 } 2019 2020 /* Check border */ 2021 if (border < 0 || border > 1 || 2022 ((target == GL_TEXTURE_RECTANGLE_NV || 2023 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2024 return GL_TRUE; 2025 } 2026 2027 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2028 if (baseFormat < 0) { 2029 _mesa_error(ctx, GL_INVALID_VALUE, 2030 "glCopyTexImage%dD(internalFormat)", dimensions); 2031 return GL_TRUE; 2032 } 2033 2034 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2035 _mesa_error(ctx, GL_INVALID_OPERATION, 2036 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2037 return GL_TRUE; 2038 } 2039 2040 /* From the EXT_texture_integer spec: 2041 * 2042 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2043 * if the texture internalformat is an integer format and the read color 2044 * buffer is not an integer format, or if the internalformat is not an 2045 * integer format and the read color buffer is an integer format." 2046 */ 2047 if (_mesa_is_color_format(internalFormat)) { 2048 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2049 2050 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2051 _mesa_is_enum_format_integer(internalFormat)) { 2052 _mesa_error(ctx, GL_INVALID_OPERATION, 2053 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2054 return GL_TRUE; 2055 } 2056 } 2057 2058 /* Do size, level checking */ 2059 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2060 ? (width == height) : 1; 2061 2062 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2063 internalFormat, baseFormat, 2064 type, width, height, 2065 1, border); 2066 2067 if (!sizeOK) { 2068 if (dimensions == 1) { 2069 _mesa_error(ctx, GL_INVALID_VALUE, 2070 "glCopyTexImage1D(width=%d)", width); 2071 } 2072 else { 2073 ASSERT(dimensions == 2); 2074 _mesa_error(ctx, GL_INVALID_VALUE, 2075 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2076 } 2077 return GL_TRUE; 2078 } 2079 2080 if (_mesa_is_compressed_format(ctx, internalFormat) || 2081 is_generic_compressed_format(internalFormat)) { 2082 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2083 _mesa_error(ctx, GL_INVALID_ENUM, 2084 "glCopyTexImage%dD(target)", dimensions); 2085 return GL_TRUE; 2086 } 2087 if (compressedteximage_only_format(ctx, internalFormat)) { 2088 _mesa_error(ctx, GL_INVALID_OPERATION, 2089 "glCopyTexImage%dD(no compression for format)", dimensions); 2090 return GL_TRUE; 2091 } 2092 if (border != 0) { 2093 _mesa_error(ctx, GL_INVALID_OPERATION, 2094 "glCopyTexImage%dD(border!=0)", dimensions); 2095 return GL_TRUE; 2096 } 2097 } 2098 2099 if (!mutable_tex_object(ctx, target)) { 2100 _mesa_error(ctx, GL_INVALID_OPERATION, 2101 "glCopyTexImage%dD(immutable texture)", dimensions); 2102 return GL_TRUE; 2103 } 2104 2105 /* if we get here, the parameters are OK */ 2106 return GL_FALSE; 2107} 2108 2109 2110/** 2111 * Test glCopyTexSubImage[12]D() parameters for errors. 2112 * Note that this is the first part of error checking. 2113 * See also copytexsubimage_error_check2() below for the second part. 2114 * 2115 * \param ctx GL context. 2116 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2117 * \param target texture target given by the user. 2118 * \param level image level given by the user. 2119 * 2120 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2121 */ 2122static GLboolean 2123copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2124 GLenum target, GLint level) 2125{ 2126 /* Check that the source buffer is complete */ 2127 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2128 if (ctx->ReadBuffer->_Status == 0) { 2129 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2130 } 2131 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2132 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2133 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2134 return GL_TRUE; 2135 } 2136 2137 if (ctx->ReadBuffer->Visual.samples > 0) { 2138 _mesa_error(ctx, GL_INVALID_OPERATION, 2139 "glCopyTexSubImage%dD(multisample FBO)", 2140 dimensions); 2141 return GL_TRUE; 2142 } 2143 } 2144 2145 /* check target (proxies not allowed) */ 2146 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2147 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2148 dimensions, _mesa_lookup_enum_by_nr(target)); 2149 return GL_TRUE; 2150 } 2151 2152 /* Check level */ 2153 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2154 _mesa_error(ctx, GL_INVALID_VALUE, 2155 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2156 return GL_TRUE; 2157 } 2158 2159 return GL_FALSE; 2160} 2161 2162 2163/** 2164 * Second part of error checking for glCopyTexSubImage[12]D(). 2165 * \param xoffset sub-image x offset given by the user. 2166 * \param yoffset sub-image y offset given by the user. 2167 * \param zoffset sub-image z offset given by the user. 2168 * \param width image width given by the user. 2169 * \param height image height given by the user. 2170 */ 2171static GLboolean 2172copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2173 GLenum target, GLint level, 2174 GLint xoffset, GLint yoffset, GLint zoffset, 2175 GLsizei width, GLsizei height, 2176 const struct gl_texture_image *teximage ) 2177{ 2178 /* check that dest tex image exists */ 2179 if (!teximage) { 2180 _mesa_error(ctx, GL_INVALID_OPERATION, 2181 "glCopyTexSubImage%dD(undefined texture level: %d)", 2182 dimensions, level); 2183 return GL_TRUE; 2184 } 2185 2186 /* Check size */ 2187 if (width < 0) { 2188 _mesa_error(ctx, GL_INVALID_VALUE, 2189 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2190 return GL_TRUE; 2191 } 2192 if (dimensions > 1 && height < 0) { 2193 _mesa_error(ctx, GL_INVALID_VALUE, 2194 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2195 return GL_TRUE; 2196 } 2197 2198 /* check x/y offsets */ 2199 if (xoffset < -((GLint)teximage->Border)) { 2200 _mesa_error(ctx, GL_INVALID_VALUE, 2201 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2202 return GL_TRUE; 2203 } 2204 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2205 _mesa_error(ctx, GL_INVALID_VALUE, 2206 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2207 return GL_TRUE; 2208 } 2209 if (dimensions > 1) { 2210 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2211 if (yoffset < -yBorder) { 2212 _mesa_error(ctx, GL_INVALID_VALUE, 2213 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2214 return GL_TRUE; 2215 } 2216 /* NOTE: we're adding the border here, not subtracting! */ 2217 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2218 _mesa_error(ctx, GL_INVALID_VALUE, 2219 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2220 return GL_TRUE; 2221 } 2222 } 2223 2224 /* check z offset */ 2225 if (dimensions > 2) { 2226 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2227 if (zoffset < -zBorder) { 2228 _mesa_error(ctx, GL_INVALID_VALUE, 2229 "glCopyTexSubImage%dD(zoffset)", dimensions); 2230 return GL_TRUE; 2231 } 2232 if (zoffset > (GLint) teximage->Depth + zBorder) { 2233 _mesa_error(ctx, GL_INVALID_VALUE, 2234 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2235 return GL_TRUE; 2236 } 2237 } 2238 2239 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2240 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2241 _mesa_error(ctx, GL_INVALID_OPERATION, 2242 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2243 return GL_TRUE; 2244 } 2245 /* offset must be multiple of 4 */ 2246 if ((xoffset & 3) || (yoffset & 3)) { 2247 _mesa_error(ctx, GL_INVALID_VALUE, 2248 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2249 return GL_TRUE; 2250 } 2251 /* size must be multiple of 4 */ 2252 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2253 _mesa_error(ctx, GL_INVALID_VALUE, 2254 "glCopyTexSubImage%dD(width)", dimensions); 2255 return GL_TRUE; 2256 } 2257 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2258 _mesa_error(ctx, GL_INVALID_VALUE, 2259 "glCopyTexSubImage%dD(height)", dimensions); 2260 return GL_TRUE; 2261 } 2262 } 2263 2264 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2265 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2266 return GL_TRUE; 2267 } 2268 2269 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2270 _mesa_error(ctx, GL_INVALID_OPERATION, 2271 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2272 dimensions, teximage->_BaseFormat); 2273 return GL_TRUE; 2274 } 2275 2276 /* From the EXT_texture_integer spec: 2277 * 2278 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2279 * if the texture internalformat is an integer format and the read color 2280 * buffer is not an integer format, or if the internalformat is not an 2281 * integer format and the read color buffer is an integer format." 2282 */ 2283 if (_mesa_is_color_format(teximage->InternalFormat)) { 2284 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2285 2286 if (_mesa_is_format_integer_color(rb->Format) != 2287 _mesa_is_format_integer_color(teximage->TexFormat)) { 2288 _mesa_error(ctx, GL_INVALID_OPERATION, 2289 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2290 return GL_TRUE; 2291 } 2292 } 2293 2294 /* if we get here, the parameters are OK */ 2295 return GL_FALSE; 2296} 2297 2298 2299/** Callback info for walking over FBO hash table */ 2300struct cb_info 2301{ 2302 struct gl_context *ctx; 2303 struct gl_texture_object *texObj; 2304 GLuint level, face; 2305}; 2306 2307 2308/** 2309 * Check render to texture callback. Called from _mesa_HashWalk(). 2310 */ 2311static void 2312check_rtt_cb(GLuint key, void *data, void *userData) 2313{ 2314 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2315 const struct cb_info *info = (struct cb_info *) userData; 2316 struct gl_context *ctx = info->ctx; 2317 const struct gl_texture_object *texObj = info->texObj; 2318 const GLuint level = info->level, face = info->face; 2319 2320 /* If this is a user-created FBO */ 2321 if (_mesa_is_user_fbo(fb)) { 2322 GLuint i; 2323 /* check if any of the FBO's attachments point to 'texObj' */ 2324 for (i = 0; i < BUFFER_COUNT; i++) { 2325 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2326 if (att->Type == GL_TEXTURE && 2327 att->Texture == texObj && 2328 att->TextureLevel == level && 2329 att->CubeMapFace == face) { 2330 ASSERT(_mesa_get_attachment_teximage(att)); 2331 /* Tell driver about the new renderbuffer texture */ 2332 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2333 /* Mark fb status as indeterminate to force re-validation */ 2334 fb->_Status = 0; 2335 } 2336 } 2337 } 2338} 2339 2340 2341/** 2342 * When a texture image is specified we have to check if it's bound to 2343 * any framebuffer objects (render to texture) in order to detect changes 2344 * in size or format since that effects FBO completeness. 2345 * Any FBOs rendering into the texture must be re-validated. 2346 */ 2347void 2348_mesa_update_fbo_texture(struct gl_context *ctx, 2349 struct gl_texture_object *texObj, 2350 GLuint face, GLuint level) 2351{ 2352 /* Only check this texture if it's been marked as RenderToTexture */ 2353 if (texObj->_RenderToTexture) { 2354 struct cb_info info; 2355 info.ctx = ctx; 2356 info.texObj = texObj; 2357 info.level = level; 2358 info.face = face; 2359 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2360 } 2361} 2362 2363 2364/** 2365 * If the texture object's GenerateMipmap flag is set and we've 2366 * changed the texture base level image, regenerate the rest of the 2367 * mipmap levels now. 2368 */ 2369static inline void 2370check_gen_mipmap(struct gl_context *ctx, GLenum target, 2371 struct gl_texture_object *texObj, GLint level) 2372{ 2373 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2374 if (texObj->GenerateMipmap && 2375 level == texObj->BaseLevel && 2376 level < texObj->MaxLevel) { 2377 ASSERT(ctx->Driver.GenerateMipmap); 2378 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2379 } 2380} 2381 2382 2383/** Debug helper: override the user-requested internal format */ 2384static GLenum 2385override_internal_format(GLenum internalFormat, GLint width, GLint height) 2386{ 2387#if 0 2388 if (internalFormat == GL_RGBA16F_ARB || 2389 internalFormat == GL_RGBA32F_ARB) { 2390 printf("Convert rgba float tex to int %d x %d\n", width, height); 2391 return GL_RGBA; 2392 } 2393 else if (internalFormat == GL_RGB16F_ARB || 2394 internalFormat == GL_RGB32F_ARB) { 2395 printf("Convert rgb float tex to int %d x %d\n", width, height); 2396 return GL_RGB; 2397 } 2398 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2399 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2400 printf("Convert luminance float tex to int %d x %d\n", width, height); 2401 return GL_LUMINANCE_ALPHA; 2402 } 2403 else if (internalFormat == GL_LUMINANCE16F_ARB || 2404 internalFormat == GL_LUMINANCE32F_ARB) { 2405 printf("Convert luminance float tex to int %d x %d\n", width, height); 2406 return GL_LUMINANCE; 2407 } 2408 else if (internalFormat == GL_ALPHA16F_ARB || 2409 internalFormat == GL_ALPHA32F_ARB) { 2410 printf("Convert luminance float tex to int %d x %d\n", width, height); 2411 return GL_ALPHA; 2412 } 2413 /* 2414 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2415 internalFormat = GL_RGBA; 2416 } 2417 */ 2418 else { 2419 return internalFormat; 2420 } 2421#else 2422 return internalFormat; 2423#endif 2424} 2425 2426 2427/** 2428 * Choose the actual hardware format for a texture image. 2429 * Try to use the same format as the previous image level when possible. 2430 * Otherwise, ask the driver for the best format. 2431 * It's important to try to choose a consistant format for all levels 2432 * for efficient texture memory layout/allocation. In particular, this 2433 * comes up during automatic mipmap generation. 2434 */ 2435gl_format 2436_mesa_choose_texture_format(struct gl_context *ctx, 2437 struct gl_texture_object *texObj, 2438 GLenum target, GLint level, 2439 GLenum internalFormat, GLenum format, GLenum type) 2440{ 2441 gl_format f; 2442 2443 /* see if we've already chosen a format for the previous level */ 2444 if (level > 0) { 2445 struct gl_texture_image *prevImage = 2446 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2447 /* See if the prev level is defined and has an internal format which 2448 * matches the new internal format. 2449 */ 2450 if (prevImage && 2451 prevImage->Width > 0 && 2452 prevImage->InternalFormat == internalFormat) { 2453 /* use the same format */ 2454 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2455 return prevImage->TexFormat; 2456 } 2457 } 2458 2459 /* choose format from scratch */ 2460 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type); 2461 ASSERT(f != MESA_FORMAT_NONE); 2462 return f; 2463} 2464 2465/** 2466 * Adjust pixel unpack params and image dimensions to strip off the 2467 * one-pixel texture border. 2468 * 2469 * Gallium and intel don't support texture borders. They've seldem been used 2470 * and seldom been implemented correctly anyway. 2471 * 2472 * \param unpackNew returns the new pixel unpack parameters 2473 */ 2474static void 2475strip_texture_border(GLenum target, 2476 GLint *width, GLint *height, GLint *depth, 2477 const struct gl_pixelstore_attrib *unpack, 2478 struct gl_pixelstore_attrib *unpackNew) 2479{ 2480 assert(width); 2481 assert(height); 2482 assert(depth); 2483 2484 *unpackNew = *unpack; 2485 2486 if (unpackNew->RowLength == 0) 2487 unpackNew->RowLength = *width; 2488 2489 if (unpackNew->ImageHeight == 0) 2490 unpackNew->ImageHeight = *height; 2491 2492 assert(*width >= 3); 2493 unpackNew->SkipPixels++; /* skip the border */ 2494 *width = *width - 2; /* reduce the width by two border pixels */ 2495 2496 /* The min height of a texture with a border is 3 */ 2497 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2498 unpackNew->SkipRows++; /* skip the border */ 2499 *height = *height - 2; /* reduce the height by two border pixels */ 2500 } 2501 2502 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2503 unpackNew->SkipImages++; /* skip the border */ 2504 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2505 } 2506} 2507 2508/** 2509 * Common code to implement all the glTexImage1D/2D/3D functions. 2510 */ 2511static void 2512teximage(struct gl_context *ctx, GLuint dims, 2513 GLenum target, GLint level, GLint internalFormat, 2514 GLsizei width, GLsizei height, GLsizei depth, 2515 GLint border, GLenum format, GLenum type, 2516 const GLvoid *pixels) 2517{ 2518 GLboolean error; 2519 struct gl_pixelstore_attrib unpack_no_border; 2520 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2521 2522 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2523 2524 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2525 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2526 dims, 2527 _mesa_lookup_enum_by_nr(target), level, 2528 _mesa_lookup_enum_by_nr(internalFormat), 2529 width, height, depth, border, 2530 _mesa_lookup_enum_by_nr(format), 2531 _mesa_lookup_enum_by_nr(type), pixels); 2532 2533 internalFormat = override_internal_format(internalFormat, width, height); 2534 2535 /* target error checking */ 2536 if (!legal_teximage_target(ctx, dims, target)) { 2537 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)", 2538 dims, _mesa_lookup_enum_by_nr(target)); 2539 return; 2540 } 2541 2542 /* general error checking */ 2543 error = texture_error_check(ctx, dims, target, level, internalFormat, 2544 format, type, width, height, depth, border); 2545 2546 if (_mesa_is_proxy_texture(target)) { 2547 /* Proxy texture: just clear or set state depending on error checking */ 2548 struct gl_texture_image *texImage = 2549 _mesa_get_proxy_tex_image(ctx, target, level); 2550 2551 if (error) { 2552 /* when error, clear all proxy texture image parameters */ 2553 if (texImage) 2554 clear_teximage_fields(texImage); 2555 } 2556 else { 2557 /* no error, set the tex image parameters */ 2558 struct gl_texture_object *texObj = 2559 _mesa_get_current_tex_object(ctx, target); 2560 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2561 target, level, 2562 internalFormat, 2563 format, type); 2564 2565 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2566 _mesa_init_teximage_fields(ctx, texImage, width, height, 2567 depth, border, internalFormat, 2568 texFormat); 2569 } 2570 else if (texImage) { 2571 clear_teximage_fields(texImage); 2572 } 2573 } 2574 } 2575 else { 2576 /* non-proxy target */ 2577 const GLuint face = _mesa_tex_target_to_face(target); 2578 struct gl_texture_object *texObj; 2579 struct gl_texture_image *texImage; 2580 2581 if (error) { 2582 return; /* error was recorded */ 2583 } 2584 2585 /* Allow a hardware driver to just strip out the border, to provide 2586 * reliable but slightly incorrect hardware rendering instead of 2587 * rarely-tested software fallback rendering. 2588 */ 2589 if (border && ctx->Const.StripTextureBorder) { 2590 strip_texture_border(target, &width, &height, &depth, unpack, 2591 &unpack_no_border); 2592 border = 0; 2593 unpack = &unpack_no_border; 2594 } 2595 2596 if (ctx->NewState & _NEW_PIXEL) 2597 _mesa_update_state(ctx); 2598 2599 texObj = _mesa_get_current_tex_object(ctx, target); 2600 2601 _mesa_lock_texture(ctx, texObj); 2602 { 2603 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2604 2605 if (!texImage) { 2606 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2607 } 2608 else { 2609 gl_format texFormat; 2610 2611 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2612 2613 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2614 internalFormat, format, 2615 type); 2616 2617 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2618 _mesa_init_teximage_fields(ctx, texImage, 2619 width, height, depth, 2620 border, internalFormat, texFormat); 2621 2622 /* Give the texture to the driver. <pixels> may be null. */ 2623 ctx->Driver.TexImage(ctx, dims, texImage, format, 2624 type, pixels, unpack); 2625 2626 check_gen_mipmap(ctx, target, texObj, level); 2627 2628 _mesa_update_fbo_texture(ctx, texObj, face, level); 2629 2630 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2631 } 2632 else { 2633 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2634 } 2635 } 2636 } 2637 _mesa_unlock_texture(ctx, texObj); 2638 } 2639} 2640 2641 2642/* 2643 * Called from the API. Note that width includes the border. 2644 */ 2645void GLAPIENTRY 2646_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 2647 GLsizei width, GLint border, GLenum format, 2648 GLenum type, const GLvoid *pixels ) 2649{ 2650 GET_CURRENT_CONTEXT(ctx); 2651 teximage(ctx, 1, target, level, internalFormat, width, 1, 1, 2652 border, format, type, pixels); 2653} 2654 2655 2656void GLAPIENTRY 2657_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 2658 GLsizei width, GLsizei height, GLint border, 2659 GLenum format, GLenum type, 2660 const GLvoid *pixels ) 2661{ 2662 GET_CURRENT_CONTEXT(ctx); 2663 teximage(ctx, 2, target, level, internalFormat, width, height, 1, 2664 border, format, type, pixels); 2665} 2666 2667 2668/* 2669 * Called by the API or display list executor. 2670 * Note that width and height include the border. 2671 */ 2672void GLAPIENTRY 2673_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 2674 GLsizei width, GLsizei height, GLsizei depth, 2675 GLint border, GLenum format, GLenum type, 2676 const GLvoid *pixels ) 2677{ 2678 GET_CURRENT_CONTEXT(ctx); 2679 teximage(ctx, 3, target, level, internalFormat, width, height, depth, 2680 border, format, type, pixels); 2681} 2682 2683 2684void GLAPIENTRY 2685_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 2686 GLsizei width, GLsizei height, GLsizei depth, 2687 GLint border, GLenum format, GLenum type, 2688 const GLvoid *pixels ) 2689{ 2690 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 2691 depth, border, format, type, pixels); 2692} 2693 2694 2695#if FEATURE_OES_EGL_image 2696void GLAPIENTRY 2697_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 2698{ 2699 struct gl_texture_object *texObj; 2700 struct gl_texture_image *texImage; 2701 GET_CURRENT_CONTEXT(ctx); 2702 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2703 2704 if ((target == GL_TEXTURE_2D && 2705 !ctx->Extensions.OES_EGL_image) || 2706 (target == GL_TEXTURE_EXTERNAL_OES && 2707 !ctx->Extensions.OES_EGL_image_external)) { 2708 _mesa_error(ctx, GL_INVALID_ENUM, 2709 "glEGLImageTargetTexture2D(target=%d)", target); 2710 return; 2711 } 2712 2713 if (ctx->NewState & _NEW_PIXEL) 2714 _mesa_update_state(ctx); 2715 2716 texObj = _mesa_get_current_tex_object(ctx, target); 2717 _mesa_lock_texture(ctx, texObj); 2718 2719 if (texObj->Immutable) { 2720 _mesa_error(ctx, GL_INVALID_OPERATION, 2721 "glEGLImageTargetTexture2D(texture is immutable)"); 2722 _mesa_unlock_texture(ctx, texObj); 2723 return; 2724 } 2725 2726 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 2727 if (!texImage) { 2728 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 2729 } else { 2730 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2731 2732 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 2733 texObj, texImage, image); 2734 2735 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2736 } 2737 _mesa_unlock_texture(ctx, texObj); 2738 2739} 2740#endif 2741 2742 2743 2744/** 2745 * Implement all the glTexSubImage1/2/3D() functions. 2746 */ 2747static void 2748texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 2749 GLint xoffset, GLint yoffset, GLint zoffset, 2750 GLsizei width, GLsizei height, GLsizei depth, 2751 GLenum format, GLenum type, const GLvoid *pixels ) 2752{ 2753 struct gl_texture_object *texObj; 2754 struct gl_texture_image *texImage; 2755 2756 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2757 2758 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2759 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 2760 dims, 2761 _mesa_lookup_enum_by_nr(target), level, 2762 xoffset, yoffset, zoffset, width, height, depth, 2763 _mesa_lookup_enum_by_nr(format), 2764 _mesa_lookup_enum_by_nr(type), pixels); 2765 2766 /* check target (proxies not allowed) */ 2767 if (!legal_texsubimage_target(ctx, dims, target)) { 2768 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 2769 dims, _mesa_lookup_enum_by_nr(target)); 2770 return; 2771 } 2772 2773 if (ctx->NewState & _NEW_PIXEL) 2774 _mesa_update_state(ctx); 2775 2776 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 2777 width, height, depth, format, type)) { 2778 return; /* error was detected */ 2779 } 2780 2781 texObj = _mesa_get_current_tex_object(ctx, target); 2782 2783 _mesa_lock_texture(ctx, texObj); 2784 { 2785 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 2786 2787 if (subtexture_error_check2(ctx, dims, target, level, 2788 xoffset, yoffset, zoffset, 2789 width, height, depth, 2790 format, type, texImage)) { 2791 /* error was recorded */ 2792 } 2793 else if (width > 0 && height > 0 && depth > 0) { 2794 /* If we have a border, offset=-1 is legal. Bias by border width. */ 2795 switch (dims) { 2796 case 3: 2797 if (target != GL_TEXTURE_2D_ARRAY) 2798 zoffset += texImage->Border; 2799 /* fall-through */ 2800 case 2: 2801 if (target != GL_TEXTURE_1D_ARRAY) 2802 yoffset += texImage->Border; 2803 /* fall-through */ 2804 case 1: 2805 xoffset += texImage->Border; 2806 } 2807 2808 ctx->Driver.TexSubImage(ctx, dims, texImage, 2809 xoffset, yoffset, zoffset, 2810 width, height, depth, 2811 format, type, pixels, &ctx->Unpack); 2812 2813 check_gen_mipmap(ctx, target, texObj, level); 2814 2815 ctx->NewState |= _NEW_TEXTURE; 2816 } 2817 } 2818 _mesa_unlock_texture(ctx, texObj); 2819} 2820 2821 2822void GLAPIENTRY 2823_mesa_TexSubImage1D( GLenum target, GLint level, 2824 GLint xoffset, GLsizei width, 2825 GLenum format, GLenum type, 2826 const GLvoid *pixels ) 2827{ 2828 GET_CURRENT_CONTEXT(ctx); 2829 texsubimage(ctx, 1, target, level, 2830 xoffset, 0, 0, 2831 width, 1, 1, 2832 format, type, pixels); 2833} 2834 2835 2836void GLAPIENTRY 2837_mesa_TexSubImage2D( GLenum target, GLint level, 2838 GLint xoffset, GLint yoffset, 2839 GLsizei width, GLsizei height, 2840 GLenum format, GLenum type, 2841 const GLvoid *pixels ) 2842{ 2843 GET_CURRENT_CONTEXT(ctx); 2844 texsubimage(ctx, 2, target, level, 2845 xoffset, yoffset, 0, 2846 width, height, 1, 2847 format, type, pixels); 2848} 2849 2850 2851 2852void GLAPIENTRY 2853_mesa_TexSubImage3D( GLenum target, GLint level, 2854 GLint xoffset, GLint yoffset, GLint zoffset, 2855 GLsizei width, GLsizei height, GLsizei depth, 2856 GLenum format, GLenum type, 2857 const GLvoid *pixels ) 2858{ 2859 GET_CURRENT_CONTEXT(ctx); 2860 texsubimage(ctx, 3, target, level, 2861 xoffset, yoffset, zoffset, 2862 width, height, depth, 2863 format, type, pixels); 2864} 2865 2866 2867 2868/** 2869 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 2870 * from. This depends on whether the texture contains color or depth values. 2871 */ 2872static struct gl_renderbuffer * 2873get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 2874{ 2875 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 2876 /* reading from depth/stencil buffer */ 2877 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 2878 } 2879 else { 2880 /* copying from color buffer */ 2881 return ctx->ReadBuffer->_ColorReadBuffer; 2882 } 2883} 2884 2885 2886 2887/** 2888 * Implement the glCopyTexImage1/2D() functions. 2889 */ 2890static void 2891copyteximage(struct gl_context *ctx, GLuint dims, 2892 GLenum target, GLint level, GLenum internalFormat, 2893 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 2894{ 2895 struct gl_texture_object *texObj; 2896 struct gl_texture_image *texImage; 2897 const GLuint face = _mesa_tex_target_to_face(target); 2898 2899 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2900 2901 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2902 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 2903 dims, 2904 _mesa_lookup_enum_by_nr(target), level, 2905 _mesa_lookup_enum_by_nr(internalFormat), 2906 x, y, width, height, border); 2907 2908 if (ctx->NewState & NEW_COPY_TEX_STATE) 2909 _mesa_update_state(ctx); 2910 2911 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 2912 width, height, border)) 2913 return; 2914 2915 texObj = _mesa_get_current_tex_object(ctx, target); 2916 2917 if (border && ctx->Const.StripTextureBorder) { 2918 x += border; 2919 width -= border * 2; 2920 if (dims == 2) { 2921 y += border; 2922 height -= border * 2; 2923 } 2924 border = 0; 2925 } 2926 2927 _mesa_lock_texture(ctx, texObj); 2928 { 2929 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2930 2931 if (!texImage) { 2932 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2933 } 2934 else { 2935 /* choose actual hw format */ 2936 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2937 target, level, 2938 internalFormat, 2939 GL_NONE, GL_NONE); 2940 2941 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 2942 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 2943 2944 /* Free old texture image */ 2945 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2946 2947 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 2948 border, internalFormat, texFormat); 2949 2950 /* Allocate texture memory (no pixel data yet) */ 2951 ctx->Driver.TexImage(ctx, dims, texImage, 2952 GL_NONE, GL_NONE, 2953 NULL, &ctx->Unpack); 2954 2955 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 2956 &width, &height)) { 2957 struct gl_renderbuffer *srcRb = 2958 get_copy_tex_image_source(ctx, texImage->TexFormat); 2959 2960 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 2961 srcRb, srcX, srcY, width, height); 2962 } 2963 2964 check_gen_mipmap(ctx, target, texObj, level); 2965 2966 _mesa_update_fbo_texture(ctx, texObj, face, level); 2967 2968 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2969 } 2970 else { 2971 /* probably too large of image */ 2972 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2973 } 2974 } 2975 } 2976 _mesa_unlock_texture(ctx, texObj); 2977} 2978 2979 2980 2981void GLAPIENTRY 2982_mesa_CopyTexImage1D( GLenum target, GLint level, 2983 GLenum internalFormat, 2984 GLint x, GLint y, 2985 GLsizei width, GLint border ) 2986{ 2987 GET_CURRENT_CONTEXT(ctx); 2988 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 2989} 2990 2991 2992 2993void GLAPIENTRY 2994_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 2995 GLint x, GLint y, GLsizei width, GLsizei height, 2996 GLint border ) 2997{ 2998 GET_CURRENT_CONTEXT(ctx); 2999 copyteximage(ctx, 2, target, level, internalFormat, 3000 x, y, width, height, border); 3001} 3002 3003 3004 3005/** 3006 * Implementation for glCopyTexSubImage1/2/3D() functions. 3007 */ 3008static void 3009copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3010 GLint xoffset, GLint yoffset, GLint zoffset, 3011 GLint x, GLint y, GLsizei width, GLsizei height) 3012{ 3013 struct gl_texture_object *texObj; 3014 struct gl_texture_image *texImage; 3015 3016 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3017 3018 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3019 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3020 dims, 3021 _mesa_lookup_enum_by_nr(target), 3022 level, xoffset, yoffset, zoffset, x, y, width, height); 3023 3024 if (ctx->NewState & NEW_COPY_TEX_STATE) 3025 _mesa_update_state(ctx); 3026 3027 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3028 return; 3029 3030 texObj = _mesa_get_current_tex_object(ctx, target); 3031 3032 _mesa_lock_texture(ctx, texObj); 3033 { 3034 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3035 3036 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3037 zoffset, width, height, texImage)) { 3038 /* error was recored */ 3039 } 3040 else { 3041 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3042 switch (dims) { 3043 case 3: 3044 if (target != GL_TEXTURE_2D_ARRAY) 3045 zoffset += texImage->Border; 3046 /* fall-through */ 3047 case 2: 3048 if (target != GL_TEXTURE_1D_ARRAY) 3049 yoffset += texImage->Border; 3050 /* fall-through */ 3051 case 1: 3052 xoffset += texImage->Border; 3053 } 3054 3055 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3056 &width, &height)) { 3057 struct gl_renderbuffer *srcRb = 3058 get_copy_tex_image_source(ctx, texImage->TexFormat); 3059 3060 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3061 xoffset, yoffset, zoffset, 3062 srcRb, x, y, width, height); 3063 3064 check_gen_mipmap(ctx, target, texObj, level); 3065 3066 ctx->NewState |= _NEW_TEXTURE; 3067 } 3068 } 3069 } 3070 _mesa_unlock_texture(ctx, texObj); 3071} 3072 3073 3074void GLAPIENTRY 3075_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3076 GLint xoffset, GLint x, GLint y, GLsizei width ) 3077{ 3078 GET_CURRENT_CONTEXT(ctx); 3079 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3080} 3081 3082 3083 3084void GLAPIENTRY 3085_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3086 GLint xoffset, GLint yoffset, 3087 GLint x, GLint y, GLsizei width, GLsizei height ) 3088{ 3089 GET_CURRENT_CONTEXT(ctx); 3090 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3091 width, height); 3092} 3093 3094 3095 3096void GLAPIENTRY 3097_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3098 GLint xoffset, GLint yoffset, GLint zoffset, 3099 GLint x, GLint y, GLsizei width, GLsizei height ) 3100{ 3101 GET_CURRENT_CONTEXT(ctx); 3102 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3103 x, y, width, height); 3104} 3105 3106 3107 3108 3109/**********************************************************************/ 3110/****** Compressed Textures ******/ 3111/**********************************************************************/ 3112 3113 3114/** 3115 * Return expected size of a compressed texture. 3116 */ 3117static GLuint 3118compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 3119 GLenum glformat) 3120{ 3121 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3122 return _mesa_format_image_size(mesaFormat, width, height, depth); 3123} 3124 3125 3126/* 3127 * Return compressed texture block size, in pixels. 3128 */ 3129static void 3130get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 3131{ 3132 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3133 _mesa_get_format_block_size(mesaFormat, bw, bh); 3134} 3135 3136 3137/** 3138 * Error checking for glCompressedTexImage[123]D(). 3139 * \param reason returns reason for error, if any 3140 * \return error code or GL_NO_ERROR. 3141 */ 3142static GLenum 3143compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 3144 GLenum target, GLint level, 3145 GLenum internalFormat, GLsizei width, 3146 GLsizei height, GLsizei depth, GLint border, 3147 GLsizei imageSize, char **reason) 3148{ 3149 const GLenum proxyTarget = get_proxy_target(target); 3150 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 3151 GLint expectedSize; 3152 GLenum choose_format; 3153 GLenum choose_type; 3154 GLenum proxy_format; 3155 3156 *reason = ""; /* no error */ 3157 3158 if (!target_can_be_compressed(ctx, target, internalFormat)) { 3159 *reason = "target"; 3160 return GL_INVALID_ENUM; 3161 } 3162 3163 /* This will detect any invalid internalFormat value */ 3164 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 3165 *reason = "internalFormat"; 3166 return GL_INVALID_ENUM; 3167 } 3168 3169 switch (internalFormat) { 3170#if FEATURE_ES 3171 case GL_PALETTE4_RGB8_OES: 3172 case GL_PALETTE4_RGBA8_OES: 3173 case GL_PALETTE4_R5_G6_B5_OES: 3174 case GL_PALETTE4_RGBA4_OES: 3175 case GL_PALETTE4_RGB5_A1_OES: 3176 case GL_PALETTE8_RGB8_OES: 3177 case GL_PALETTE8_RGBA8_OES: 3178 case GL_PALETTE8_R5_G6_B5_OES: 3179 case GL_PALETTE8_RGBA4_OES: 3180 case GL_PALETTE8_RGB5_A1_OES: 3181 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 3182 &choose_type); 3183 proxy_format = choose_format; 3184 3185 /* check level */ 3186 if (level > 0 || level < -maxLevels) { 3187 *reason = "level"; 3188 return GL_INVALID_VALUE; 3189 } 3190 3191 if (dimensions != 2) { 3192 *reason = "compressed paletted textures must be 2D"; 3193 return GL_INVALID_OPERATION; 3194 } 3195 3196 /* Figure out the expected texture size (in bytes). This will be 3197 * checked against the actual size later. 3198 */ 3199 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 3200 width, height); 3201 3202 /* This is for the benefit of the TestProxyTexImage below. It expects 3203 * level to be non-negative. OES_compressed_paletted_texture uses a 3204 * weird mechanism where the level specified to glCompressedTexImage2D 3205 * is -(n-1) number of levels in the texture, and the data specifies the 3206 * complete mipmap stack. This is done to ensure the palette is the 3207 * same for all levels. 3208 */ 3209 level = -level; 3210 break; 3211#endif 3212 3213 default: 3214 choose_format = GL_NONE; 3215 choose_type = GL_NONE; 3216 proxy_format = internalFormat; 3217 3218 /* check level */ 3219 if (level < 0 || level >= maxLevels) { 3220 *reason = "level"; 3221 return GL_INVALID_VALUE; 3222 } 3223 3224 /* Figure out the expected texture size (in bytes). This will be 3225 * checked against the actual size later. 3226 */ 3227 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 3228 break; 3229 } 3230 3231 /* This should really never fail */ 3232 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 3233 *reason = "internalFormat"; 3234 return GL_INVALID_ENUM; 3235 } 3236 3237 /* No compressed formats support borders at this time */ 3238 if (border != 0) { 3239 *reason = "border != 0"; 3240 return GL_INVALID_VALUE; 3241 } 3242 3243 /* For cube map, width must equal height */ 3244 if (_mesa_is_cube_face(target) && width != height) { 3245 *reason = "width != height"; 3246 return GL_INVALID_VALUE; 3247 } 3248 3249 /* check image size against compression block size */ 3250 { 3251 gl_format texFormat = 3252 ctx->Driver.ChooseTextureFormat(ctx, proxy_format, 3253 choose_format, choose_type); 3254 GLuint bw, bh; 3255 3256 _mesa_get_format_block_size(texFormat, &bw, &bh); 3257 if ((width > bw && width % bw > 0) || 3258 (height > bh && height % bh > 0)) { 3259 /* 3260 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is 3261 * generated [...] if any parameter combinations are not 3262 * supported by the specific compressed internal format. 3263 */ 3264 *reason = "invalid width or height for compression format"; 3265 return GL_INVALID_OPERATION; 3266 } 3267 } 3268 3269 /* check image sizes */ 3270 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 3271 proxy_format, choose_format, 3272 choose_type, 3273 width, height, depth, border)) { 3274 /* See error comment above */ 3275 *reason = "invalid width, height or format"; 3276 return GL_INVALID_OPERATION; 3277 } 3278 3279 /* check image size in bytes */ 3280 if (expectedSize != imageSize) { 3281 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 3282 * if <imageSize> is not consistent with the format, dimensions, and 3283 * contents of the specified image. 3284 */ 3285 *reason = "imageSize inconsistant with width/height/format"; 3286 return GL_INVALID_VALUE; 3287 } 3288 3289 if (!mutable_tex_object(ctx, target)) { 3290 *reason = "immutable texture"; 3291 return GL_INVALID_OPERATION; 3292 } 3293 3294 return GL_NO_ERROR; 3295} 3296 3297 3298/** 3299 * Error checking for glCompressedTexSubImage[123]D(). 3300 * \warning There are some bad assumptions here about the size of compressed 3301 * texture tiles (multiple of 4) used to test the validity of the 3302 * offset and size parameters. 3303 * \return error code or GL_NO_ERROR. 3304 */ 3305static GLenum 3306compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3307 GLenum target, GLint level, 3308 GLint xoffset, GLint yoffset, GLint zoffset, 3309 GLsizei width, GLsizei height, GLsizei depth, 3310 GLenum format, GLsizei imageSize) 3311{ 3312 GLint expectedSize, maxLevels = 0, maxTextureSize; 3313 GLuint bw, bh; 3314 (void) zoffset; 3315 3316 if (dimensions == 1) { 3317 /* 1D compressed textures not allowed */ 3318 return GL_INVALID_ENUM; 3319 } 3320 else if (dimensions == 2) { 3321 if (target == GL_PROXY_TEXTURE_2D) { 3322 maxLevels = ctx->Const.MaxTextureLevels; 3323 } 3324 else if (target == GL_TEXTURE_2D) { 3325 maxLevels = ctx->Const.MaxTextureLevels; 3326 } 3327 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3328 if (!ctx->Extensions.ARB_texture_cube_map) 3329 return GL_INVALID_ENUM; /*target*/ 3330 maxLevels = ctx->Const.MaxCubeTextureLevels; 3331 } 3332 else if (_mesa_is_cube_face(target)) { 3333 if (!ctx->Extensions.ARB_texture_cube_map) 3334 return GL_INVALID_ENUM; /*target*/ 3335 maxLevels = ctx->Const.MaxCubeTextureLevels; 3336 } 3337 else { 3338 return GL_INVALID_ENUM; /*target*/ 3339 } 3340 } 3341 else if (dimensions == 3) { 3342 /* 3D compressed textures not allowed */ 3343 return GL_INVALID_ENUM; 3344 } 3345 3346 maxTextureSize = 1 << (maxLevels - 1); 3347 3348 /* this will catch any invalid compressed format token */ 3349 if (!_mesa_is_compressed_format(ctx, format)) 3350 return GL_INVALID_ENUM; 3351 3352 if (width < 1 || width > maxTextureSize) 3353 return GL_INVALID_VALUE; 3354 3355 if ((height < 1 || height > maxTextureSize) 3356 && dimensions > 1) 3357 return GL_INVALID_VALUE; 3358 3359 if (level < 0 || level >= maxLevels) 3360 return GL_INVALID_VALUE; 3361 3362 /* 3363 * do checks which depend on compression block size 3364 */ 3365 get_compressed_block_size(format, &bw, &bh); 3366 3367 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3368 return GL_INVALID_VALUE; 3369 3370 if ((width % bw != 0) && width != 2 && width != 1) 3371 return GL_INVALID_VALUE; 3372 3373 if ((height % bh != 0) && height != 2 && height != 1) 3374 return GL_INVALID_VALUE; 3375 3376 expectedSize = compressed_tex_size(width, height, depth, format); 3377 if (expectedSize != imageSize) 3378 return GL_INVALID_VALUE; 3379 3380 return GL_NO_ERROR; 3381} 3382 3383 3384/** 3385 * Do second part of glCompressedTexSubImage error checking. 3386 * \return GL_TRUE if error found, GL_FALSE otherwise. 3387 */ 3388static GLboolean 3389compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3390 GLsizei width, GLsizei height, 3391 GLsizei depth, GLenum format, 3392 struct gl_texture_image *texImage) 3393{ 3394 3395 if ((GLint) format != texImage->InternalFormat) { 3396 _mesa_error(ctx, GL_INVALID_OPERATION, 3397 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3398 return GL_TRUE; 3399 } 3400 3401 if (compressedteximage_only_format(ctx, format)) { 3402 _mesa_error(ctx, GL_INVALID_OPERATION, 3403 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3404 , dims, format); 3405 return GL_TRUE; 3406 } 3407 3408 if (((width == 1 || width == 2) && 3409 width != (GLsizei) texImage->Width) || 3410 (width > (GLsizei) texImage->Width)) { 3411 _mesa_error(ctx, GL_INVALID_VALUE, 3412 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3413 return GL_TRUE; 3414 } 3415 3416 if (dims >= 2) { 3417 if (((height == 1 || height == 2) && 3418 height != (GLsizei) texImage->Height) || 3419 (height > (GLsizei) texImage->Height)) { 3420 _mesa_error(ctx, GL_INVALID_VALUE, 3421 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3422 return GL_TRUE; 3423 } 3424 } 3425 3426 if (dims >= 3) { 3427 if (((depth == 1 || depth == 2) && 3428 depth != (GLsizei) texImage->Depth) || 3429 (depth > (GLsizei) texImage->Depth)) { 3430 _mesa_error(ctx, GL_INVALID_VALUE, 3431 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3432 return GL_TRUE; 3433 } 3434 } 3435 3436 return GL_FALSE; 3437} 3438 3439 3440/** 3441 * Implementation of the glCompressedTexImage1/2/3D() functions. 3442 */ 3443static void 3444compressedteximage(struct gl_context *ctx, GLuint dims, 3445 GLenum target, GLint level, 3446 GLenum internalFormat, GLsizei width, 3447 GLsizei height, GLsizei depth, GLint border, 3448 GLsizei imageSize, const GLvoid *data) 3449{ 3450 GLenum error; 3451 char *reason = ""; 3452 3453 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3454 3455 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3456 _mesa_debug(ctx, 3457 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n", 3458 dims, 3459 _mesa_lookup_enum_by_nr(target), level, 3460 _mesa_lookup_enum_by_nr(internalFormat), 3461 width, height, depth, border, imageSize, data); 3462 3463 /* check target */ 3464 if (!legal_teximage_target(ctx, dims, target)) { 3465 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)", 3466 dims, _mesa_lookup_enum_by_nr(target)); 3467 return; 3468 } 3469 3470 error = compressed_texture_error_check(ctx, dims, target, level, 3471 internalFormat, width, height, depth, 3472 border, imageSize, &reason); 3473 3474#if FEATURE_ES 3475 /* XXX this is kind of a hack */ 3476 if (!error && dims == 2) { 3477 switch (internalFormat) { 3478 case GL_PALETTE4_RGB8_OES: 3479 case GL_PALETTE4_RGBA8_OES: 3480 case GL_PALETTE4_R5_G6_B5_OES: 3481 case GL_PALETTE4_RGBA4_OES: 3482 case GL_PALETTE4_RGB5_A1_OES: 3483 case GL_PALETTE8_RGB8_OES: 3484 case GL_PALETTE8_RGBA8_OES: 3485 case GL_PALETTE8_R5_G6_B5_OES: 3486 case GL_PALETTE8_RGBA4_OES: 3487 case GL_PALETTE8_RGB5_A1_OES: 3488 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 3489 width, height, imageSize, data); 3490 return; 3491 } 3492 } 3493#endif 3494 3495 if (_mesa_is_proxy_texture(target)) { 3496 /* Proxy texture: just check for errors and update proxy state */ 3497 struct gl_texture_image *texImage; 3498 3499 if (!error) { 3500 struct gl_texture_object *texObj = 3501 _mesa_get_current_tex_object(ctx, target); 3502 gl_format texFormat = 3503 _mesa_choose_texture_format(ctx, texObj, target, level, 3504 internalFormat, GL_NONE, GL_NONE); 3505 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 3506 error = GL_OUT_OF_MEMORY; 3507 } 3508 } 3509 3510 texImage = _mesa_get_proxy_tex_image(ctx, target, level); 3511 if (texImage) { 3512 if (error) { 3513 /* if error, clear all proxy texture image parameters */ 3514 clear_teximage_fields(texImage); 3515 } 3516 else { 3517 /* no error: store the teximage parameters */ 3518 _mesa_init_teximage_fields(ctx, texImage, width, height, 3519 depth, border, internalFormat, 3520 MESA_FORMAT_NONE); 3521 } 3522 } 3523 } 3524 else { 3525 /* non-proxy target */ 3526 struct gl_texture_object *texObj; 3527 struct gl_texture_image *texImage; 3528 3529 if (error) { 3530 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason); 3531 return; 3532 } 3533 3534 texObj = _mesa_get_current_tex_object(ctx, target); 3535 3536 _mesa_lock_texture(ctx, texObj); 3537 { 3538 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3539 if (!texImage) { 3540 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3541 "glCompressedTexImage%uD", dims); 3542 } 3543 else { 3544 gl_format texFormat; 3545 3546 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3547 3548 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3549 internalFormat, GL_NONE, 3550 GL_NONE); 3551 3552 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3553 _mesa_init_teximage_fields(ctx, texImage, 3554 width, height, depth, 3555 border, internalFormat, texFormat); 3556 3557 ctx->Driver.CompressedTexImage(ctx, dims, texImage, imageSize, 3558 data); 3559 3560 check_gen_mipmap(ctx, target, texObj, level); 3561 3562 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3563 } 3564 else { 3565 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3566 "glCompressedTexImage%uD", dims); 3567 } 3568 } 3569 } 3570 _mesa_unlock_texture(ctx, texObj); 3571 } 3572} 3573 3574 3575void GLAPIENTRY 3576_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3577 GLenum internalFormat, GLsizei width, 3578 GLint border, GLsizei imageSize, 3579 const GLvoid *data) 3580{ 3581 GET_CURRENT_CONTEXT(ctx); 3582 compressedteximage(ctx, 1, target, level, internalFormat, 3583 width, 1, 1, border, imageSize, data); 3584} 3585 3586 3587void GLAPIENTRY 3588_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3589 GLenum internalFormat, GLsizei width, 3590 GLsizei height, GLint border, GLsizei imageSize, 3591 const GLvoid *data) 3592{ 3593 GET_CURRENT_CONTEXT(ctx); 3594 compressedteximage(ctx, 2, target, level, internalFormat, 3595 width, height, 1, border, imageSize, data); 3596} 3597 3598 3599void GLAPIENTRY 3600_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3601 GLenum internalFormat, GLsizei width, 3602 GLsizei height, GLsizei depth, GLint border, 3603 GLsizei imageSize, const GLvoid *data) 3604{ 3605 GET_CURRENT_CONTEXT(ctx); 3606 compressedteximage(ctx, 3, target, level, internalFormat, 3607 width, height, depth, border, imageSize, data); 3608} 3609 3610 3611/** 3612 * Common helper for glCompressedTexSubImage1/2/3D(). 3613 */ 3614static void 3615compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3616 GLint xoffset, GLint yoffset, GLint zoffset, 3617 GLsizei width, GLsizei height, GLsizei depth, 3618 GLenum format, GLsizei imageSize, const GLvoid *data) 3619{ 3620 struct gl_texture_object *texObj; 3621 struct gl_texture_image *texImage; 3622 GLenum error; 3623 GET_CURRENT_CONTEXT(ctx); 3624 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3625 3626 error = compressed_subtexture_error_check(ctx, dims, target, level, 3627 xoffset, 0, 0, /* pos */ 3628 width, height, depth, /* size */ 3629 format, imageSize); 3630 if (error) { 3631 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3632 return; 3633 } 3634 3635 texObj = _mesa_get_current_tex_object(ctx, target); 3636 3637 _mesa_lock_texture(ctx, texObj); 3638 { 3639 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3640 assert(texImage); 3641 3642 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3643 format, texImage)) { 3644 /* error was recorded */ 3645 } 3646 else if (width > 0 && height > 0 && depth > 0) { 3647 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3648 xoffset, yoffset, zoffset, 3649 width, height, depth, 3650 format, imageSize, data); 3651 3652 check_gen_mipmap(ctx, target, texObj, level); 3653 3654 ctx->NewState |= _NEW_TEXTURE; 3655 } 3656 } 3657 _mesa_unlock_texture(ctx, texObj); 3658} 3659 3660 3661void GLAPIENTRY 3662_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3663 GLsizei width, GLenum format, 3664 GLsizei imageSize, const GLvoid *data) 3665{ 3666 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3667 format, imageSize, data); 3668} 3669 3670 3671void GLAPIENTRY 3672_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3673 GLint yoffset, GLsizei width, GLsizei height, 3674 GLenum format, GLsizei imageSize, 3675 const GLvoid *data) 3676{ 3677 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3678 width, height, 1, format, imageSize, data); 3679} 3680 3681 3682void GLAPIENTRY 3683_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3684 GLint yoffset, GLint zoffset, GLsizei width, 3685 GLsizei height, GLsizei depth, GLenum format, 3686 GLsizei imageSize, const GLvoid *data) 3687{ 3688 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3689 width, height, depth, format, imageSize, data); 3690} 3691 3692static gl_format 3693get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3694{ 3695 switch (internalFormat) { 3696 case GL_ALPHA8: 3697 return MESA_FORMAT_A8; 3698 case GL_ALPHA16: 3699 return MESA_FORMAT_A16; 3700 case GL_ALPHA16F_ARB: 3701 return MESA_FORMAT_ALPHA_FLOAT16; 3702 case GL_ALPHA32F_ARB: 3703 return MESA_FORMAT_ALPHA_FLOAT32; 3704 case GL_ALPHA8I_EXT: 3705 return MESA_FORMAT_ALPHA_INT8; 3706 case GL_ALPHA16I_EXT: 3707 return MESA_FORMAT_ALPHA_INT16; 3708 case GL_ALPHA32I_EXT: 3709 return MESA_FORMAT_ALPHA_INT32; 3710 case GL_ALPHA8UI_EXT: 3711 return MESA_FORMAT_ALPHA_UINT8; 3712 case GL_ALPHA16UI_EXT: 3713 return MESA_FORMAT_ALPHA_UINT16; 3714 case GL_ALPHA32UI_EXT: 3715 return MESA_FORMAT_ALPHA_UINT32; 3716 case GL_LUMINANCE8: 3717 return MESA_FORMAT_L8; 3718 case GL_LUMINANCE16: 3719 return MESA_FORMAT_L16; 3720 case GL_LUMINANCE16F_ARB: 3721 return MESA_FORMAT_LUMINANCE_FLOAT16; 3722 case GL_LUMINANCE32F_ARB: 3723 return MESA_FORMAT_LUMINANCE_FLOAT32; 3724 case GL_LUMINANCE8I_EXT: 3725 return MESA_FORMAT_LUMINANCE_INT8; 3726 case GL_LUMINANCE16I_EXT: 3727 return MESA_FORMAT_LUMINANCE_INT16; 3728 case GL_LUMINANCE32I_EXT: 3729 return MESA_FORMAT_LUMINANCE_INT32; 3730 case GL_LUMINANCE8UI_EXT: 3731 return MESA_FORMAT_LUMINANCE_UINT8; 3732 case GL_LUMINANCE16UI_EXT: 3733 return MESA_FORMAT_LUMINANCE_UINT16; 3734 case GL_LUMINANCE32UI_EXT: 3735 return MESA_FORMAT_LUMINANCE_UINT32; 3736 case GL_LUMINANCE8_ALPHA8: 3737 return MESA_FORMAT_AL88; 3738 case GL_LUMINANCE16_ALPHA16: 3739 return MESA_FORMAT_AL1616; 3740 case GL_LUMINANCE_ALPHA16F_ARB: 3741 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3742 case GL_LUMINANCE_ALPHA32F_ARB: 3743 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3744 case GL_LUMINANCE_ALPHA8I_EXT: 3745 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3746 case GL_LUMINANCE_ALPHA16I_EXT: 3747 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3748 case GL_LUMINANCE_ALPHA32I_EXT: 3749 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3750 case GL_LUMINANCE_ALPHA8UI_EXT: 3751 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3752 case GL_LUMINANCE_ALPHA16UI_EXT: 3753 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3754 case GL_LUMINANCE_ALPHA32UI_EXT: 3755 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3756 case GL_INTENSITY8: 3757 return MESA_FORMAT_I8; 3758 case GL_INTENSITY16: 3759 return MESA_FORMAT_I16; 3760 case GL_INTENSITY16F_ARB: 3761 return MESA_FORMAT_INTENSITY_FLOAT16; 3762 case GL_INTENSITY32F_ARB: 3763 return MESA_FORMAT_INTENSITY_FLOAT32; 3764 case GL_INTENSITY8I_EXT: 3765 return MESA_FORMAT_INTENSITY_INT8; 3766 case GL_INTENSITY16I_EXT: 3767 return MESA_FORMAT_INTENSITY_INT16; 3768 case GL_INTENSITY32I_EXT: 3769 return MESA_FORMAT_INTENSITY_INT32; 3770 case GL_INTENSITY8UI_EXT: 3771 return MESA_FORMAT_INTENSITY_UINT8; 3772 case GL_INTENSITY16UI_EXT: 3773 return MESA_FORMAT_INTENSITY_UINT16; 3774 case GL_INTENSITY32UI_EXT: 3775 return MESA_FORMAT_INTENSITY_UINT32; 3776 case GL_RGBA8: 3777 return MESA_FORMAT_RGBA8888_REV; 3778 case GL_RGBA16: 3779 return MESA_FORMAT_RGBA_16; 3780 case GL_RGBA16F_ARB: 3781 return MESA_FORMAT_RGBA_FLOAT16; 3782 case GL_RGBA32F_ARB: 3783 return MESA_FORMAT_RGBA_FLOAT32; 3784 case GL_RGBA8I_EXT: 3785 return MESA_FORMAT_RGBA_INT8; 3786 case GL_RGBA16I_EXT: 3787 return MESA_FORMAT_RGBA_INT16; 3788 case GL_RGBA32I_EXT: 3789 return MESA_FORMAT_RGBA_INT32; 3790 case GL_RGBA8UI_EXT: 3791 return MESA_FORMAT_RGBA_UINT8; 3792 case GL_RGBA16UI_EXT: 3793 return MESA_FORMAT_RGBA_UINT16; 3794 case GL_RGBA32UI_EXT: 3795 return MESA_FORMAT_RGBA_UINT32; 3796 3797 case GL_RG8: 3798 return MESA_FORMAT_GR88; 3799 case GL_RG16: 3800 return MESA_FORMAT_RG1616; 3801 case GL_RG16F: 3802 return MESA_FORMAT_RG_FLOAT16; 3803 case GL_RG32F: 3804 return MESA_FORMAT_RG_FLOAT32; 3805 case GL_RG8I: 3806 return MESA_FORMAT_RG_INT8; 3807 case GL_RG16I: 3808 return MESA_FORMAT_RG_INT16; 3809 case GL_RG32I: 3810 return MESA_FORMAT_RG_INT32; 3811 case GL_RG8UI: 3812 return MESA_FORMAT_RG_UINT8; 3813 case GL_RG16UI: 3814 return MESA_FORMAT_RG_UINT16; 3815 case GL_RG32UI: 3816 return MESA_FORMAT_RG_UINT32; 3817 3818 case GL_R8: 3819 return MESA_FORMAT_R8; 3820 case GL_R16: 3821 return MESA_FORMAT_R16; 3822 case GL_R16F: 3823 return MESA_FORMAT_R_FLOAT16; 3824 case GL_R32F: 3825 return MESA_FORMAT_R_FLOAT32; 3826 case GL_R8I: 3827 return MESA_FORMAT_R_INT8; 3828 case GL_R16I: 3829 return MESA_FORMAT_R_INT16; 3830 case GL_R32I: 3831 return MESA_FORMAT_R_INT32; 3832 case GL_R8UI: 3833 return MESA_FORMAT_R_UINT8; 3834 case GL_R16UI: 3835 return MESA_FORMAT_R_UINT16; 3836 case GL_R32UI: 3837 return MESA_FORMAT_R_UINT32; 3838 3839 default: 3840 return MESA_FORMAT_NONE; 3841 } 3842} 3843 3844static gl_format 3845validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3846{ 3847 gl_format format = get_texbuffer_format(ctx, internalFormat); 3848 GLenum datatype; 3849 3850 if (format == MESA_FORMAT_NONE) 3851 return MESA_FORMAT_NONE; 3852 3853 datatype = _mesa_get_format_datatype(format); 3854 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3855 return MESA_FORMAT_NONE; 3856 3857 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3858 return MESA_FORMAT_NONE; 3859 3860 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3861 * any mention of R/RG formats, but they appear in the GL 3.1 core 3862 * specification. 3863 */ 3864 if (ctx->Version <= 30) { 3865 GLenum base_format = _mesa_get_format_base_format(format); 3866 3867 if (base_format == GL_R || base_format == GL_RG) 3868 return MESA_FORMAT_NONE; 3869 } 3870 return format; 3871} 3872 3873 3874/** GL_ARB_texture_buffer_object */ 3875void GLAPIENTRY 3876_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 3877{ 3878 struct gl_texture_object *texObj; 3879 struct gl_buffer_object *bufObj; 3880 gl_format format; 3881 3882 GET_CURRENT_CONTEXT(ctx); 3883 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3884 3885 if (!ctx->Extensions.ARB_texture_buffer_object) { 3886 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 3887 return; 3888 } 3889 3890 if (target != GL_TEXTURE_BUFFER_ARB) { 3891 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 3892 return; 3893 } 3894 3895 format = validate_texbuffer_format(ctx, internalFormat); 3896 if (format == MESA_FORMAT_NONE) { 3897 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 3898 internalFormat); 3899 return; 3900 } 3901 3902 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 3903 if (buffer && !bufObj) { 3904 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 3905 return; 3906 } 3907 3908 texObj = _mesa_get_current_tex_object(ctx, target); 3909 3910 _mesa_lock_texture(ctx, texObj); 3911 { 3912 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 3913 texObj->BufferObjectFormat = internalFormat; 3914 texObj->_BufferObjectFormat = format; 3915 } 3916 _mesa_unlock_texture(ctx, texObj); 3917} 3918