teximage.c revision 530c9d764b84035728a28ee2db996fffe49125ce
1/* 2 * Mesa 3-D graphics library 3 * 4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 6 * 7 * Permission is hereby granted, free of charge, to any person obtaining a 8 * copy of this software and associated documentation files (the "Software"), 9 * to deal in the Software without restriction, including without limitation 10 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 11 * and/or sell copies of the Software, and to permit persons to whom the 12 * Software is furnished to do so, subject to the following conditions: 13 * 14 * The above copyright notice and this permission notice shall be included 15 * in all copies or substantial portions of the Software. 16 * 17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 23 */ 24 25 26/** 27 * \file teximage.c 28 * Texture image-related functions. 29 */ 30 31#include <stdbool.h> 32#include "glheader.h" 33#include "bufferobj.h" 34#include "context.h" 35#include "enums.h" 36#include "fbobject.h" 37#include "framebuffer.h" 38#include "hash.h" 39#include "image.h" 40#include "imports.h" 41#include "macros.h" 42#include "mfeatures.h" 43#include "state.h" 44#include "texcompress.h" 45#include "teximage.h" 46#include "texobj.h" 47#include "texstate.h" 48#include "texpal.h" 49#include "mtypes.h" 50#include "glformats.h" 51 52 53/** 54 * State changes which we care about for glCopyTex[Sub]Image() calls. 55 * In particular, we care about pixel transfer state and buffer state 56 * (such as glReadBuffer to make sure we read from the right renderbuffer). 57 */ 58#define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL) 59 60 61 62/** 63 * Return the simple base format for a given internal texture format. 64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA. 65 * 66 * \param ctx GL context. 67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4. 68 * 69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE, 70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum. 71 * 72 * This is the format which is used during texture application (i.e. the 73 * texture format and env mode determine the arithmetic used. 74 */ 75GLint 76_mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat ) 77{ 78 switch (internalFormat) { 79 case GL_ALPHA: 80 case GL_ALPHA4: 81 case GL_ALPHA8: 82 case GL_ALPHA12: 83 case GL_ALPHA16: 84 return GL_ALPHA; 85 case 1: 86 case GL_LUMINANCE: 87 case GL_LUMINANCE4: 88 case GL_LUMINANCE8: 89 case GL_LUMINANCE12: 90 case GL_LUMINANCE16: 91 return GL_LUMINANCE; 92 case 2: 93 case GL_LUMINANCE_ALPHA: 94 case GL_LUMINANCE4_ALPHA4: 95 case GL_LUMINANCE6_ALPHA2: 96 case GL_LUMINANCE8_ALPHA8: 97 case GL_LUMINANCE12_ALPHA4: 98 case GL_LUMINANCE12_ALPHA12: 99 case GL_LUMINANCE16_ALPHA16: 100 return GL_LUMINANCE_ALPHA; 101 case GL_INTENSITY: 102 case GL_INTENSITY4: 103 case GL_INTENSITY8: 104 case GL_INTENSITY12: 105 case GL_INTENSITY16: 106 return GL_INTENSITY; 107 case 3: 108 case GL_RGB: 109 case GL_R3_G3_B2: 110 case GL_RGB4: 111 case GL_RGB5: 112 case GL_RGB8: 113 case GL_RGB10: 114 case GL_RGB12: 115 case GL_RGB16: 116 return GL_RGB; 117 case 4: 118 case GL_RGBA: 119 case GL_RGBA2: 120 case GL_RGBA4: 121 case GL_RGB5_A1: 122 case GL_RGBA8: 123 case GL_RGB10_A2: 124 case GL_RGBA12: 125 case GL_RGBA16: 126 return GL_RGBA; 127 default: 128 ; /* fallthrough */ 129 } 130 131 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0). 132 */ 133 if (_mesa_is_gles(ctx)) { 134 switch (internalFormat) { 135 case GL_BGRA: 136 return GL_RGBA; 137 default: 138 ; /* fallthrough */ 139 } 140 } 141 142 if (ctx->Extensions.ARB_ES2_compatibility) { 143 switch (internalFormat) { 144 case GL_RGB565: 145 return GL_RGB; 146 default: 147 ; /* fallthrough */ 148 } 149 } 150 151 if (ctx->Extensions.ARB_depth_texture) { 152 switch (internalFormat) { 153 case GL_DEPTH_COMPONENT: 154 case GL_DEPTH_COMPONENT16: 155 case GL_DEPTH_COMPONENT24: 156 case GL_DEPTH_COMPONENT32: 157 return GL_DEPTH_COMPONENT; 158 default: 159 ; /* fallthrough */ 160 } 161 } 162 163 switch (internalFormat) { 164 case GL_COMPRESSED_ALPHA: 165 return GL_ALPHA; 166 case GL_COMPRESSED_LUMINANCE: 167 return GL_LUMINANCE; 168 case GL_COMPRESSED_LUMINANCE_ALPHA: 169 return GL_LUMINANCE_ALPHA; 170 case GL_COMPRESSED_INTENSITY: 171 return GL_INTENSITY; 172 case GL_COMPRESSED_RGB: 173 return GL_RGB; 174 case GL_COMPRESSED_RGBA: 175 return GL_RGBA; 176 default: 177 ; /* fallthrough */ 178 } 179 180 if (ctx->Extensions.TDFX_texture_compression_FXT1) { 181 switch (internalFormat) { 182 case GL_COMPRESSED_RGB_FXT1_3DFX: 183 return GL_RGB; 184 case GL_COMPRESSED_RGBA_FXT1_3DFX: 185 return GL_RGBA; 186 default: 187 ; /* fallthrough */ 188 } 189 } 190 191 if (ctx->Extensions.EXT_texture_compression_s3tc) { 192 switch (internalFormat) { 193 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT: 194 return GL_RGB; 195 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT: 196 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT: 197 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT: 198 return GL_RGBA; 199 default: 200 ; /* fallthrough */ 201 } 202 } 203 204 if (ctx->Extensions.S3_s3tc) { 205 switch (internalFormat) { 206 case GL_RGB_S3TC: 207 case GL_RGB4_S3TC: 208 return GL_RGB; 209 case GL_RGBA_S3TC: 210 case GL_RGBA4_S3TC: 211 return GL_RGBA; 212 default: 213 ; /* fallthrough */ 214 } 215 } 216 217 if (ctx->Extensions.MESA_ycbcr_texture) { 218 if (internalFormat == GL_YCBCR_MESA) 219 return GL_YCBCR_MESA; 220 } 221 222 if (ctx->Extensions.ARB_texture_float) { 223 switch (internalFormat) { 224 case GL_ALPHA16F_ARB: 225 case GL_ALPHA32F_ARB: 226 return GL_ALPHA; 227 case GL_RGBA16F_ARB: 228 case GL_RGBA32F_ARB: 229 return GL_RGBA; 230 case GL_RGB16F_ARB: 231 case GL_RGB32F_ARB: 232 return GL_RGB; 233 case GL_INTENSITY16F_ARB: 234 case GL_INTENSITY32F_ARB: 235 return GL_INTENSITY; 236 case GL_LUMINANCE16F_ARB: 237 case GL_LUMINANCE32F_ARB: 238 return GL_LUMINANCE; 239 case GL_LUMINANCE_ALPHA16F_ARB: 240 case GL_LUMINANCE_ALPHA32F_ARB: 241 return GL_LUMINANCE_ALPHA; 242 default: 243 ; /* fallthrough */ 244 } 245 } 246 247 if (ctx->Extensions.ATI_envmap_bumpmap) { 248 switch (internalFormat) { 249 case GL_DUDV_ATI: 250 case GL_DU8DV8_ATI: 251 return GL_DUDV_ATI; 252 default: 253 ; /* fallthrough */ 254 } 255 } 256 257 if (ctx->Extensions.EXT_texture_snorm) { 258 switch (internalFormat) { 259 case GL_RED_SNORM: 260 case GL_R8_SNORM: 261 case GL_R16_SNORM: 262 return GL_RED; 263 case GL_RG_SNORM: 264 case GL_RG8_SNORM: 265 case GL_RG16_SNORM: 266 return GL_RG; 267 case GL_RGB_SNORM: 268 case GL_RGB8_SNORM: 269 case GL_RGB16_SNORM: 270 return GL_RGB; 271 case GL_RGBA_SNORM: 272 case GL_RGBA8_SNORM: 273 case GL_RGBA16_SNORM: 274 return GL_RGBA; 275 case GL_ALPHA_SNORM: 276 case GL_ALPHA8_SNORM: 277 case GL_ALPHA16_SNORM: 278 return GL_ALPHA; 279 case GL_LUMINANCE_SNORM: 280 case GL_LUMINANCE8_SNORM: 281 case GL_LUMINANCE16_SNORM: 282 return GL_LUMINANCE; 283 case GL_LUMINANCE_ALPHA_SNORM: 284 case GL_LUMINANCE8_ALPHA8_SNORM: 285 case GL_LUMINANCE16_ALPHA16_SNORM: 286 return GL_LUMINANCE_ALPHA; 287 case GL_INTENSITY_SNORM: 288 case GL_INTENSITY8_SNORM: 289 case GL_INTENSITY16_SNORM: 290 return GL_INTENSITY; 291 default: 292 ; /* fallthrough */ 293 } 294 } 295 296 if (ctx->Extensions.EXT_packed_depth_stencil) { 297 switch (internalFormat) { 298 case GL_DEPTH_STENCIL_EXT: 299 case GL_DEPTH24_STENCIL8_EXT: 300 return GL_DEPTH_STENCIL_EXT; 301 default: 302 ; /* fallthrough */ 303 } 304 } 305 306#if FEATURE_EXT_texture_sRGB 307 if (ctx->Extensions.EXT_texture_sRGB) { 308 switch (internalFormat) { 309 case GL_SRGB_EXT: 310 case GL_SRGB8_EXT: 311 case GL_COMPRESSED_SRGB_EXT: 312 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT: 313 return GL_RGB; 314 case GL_SRGB_ALPHA_EXT: 315 case GL_SRGB8_ALPHA8_EXT: 316 case GL_COMPRESSED_SRGB_ALPHA_EXT: 317 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT: 318 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT: 319 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT: 320 return GL_RGBA; 321 case GL_SLUMINANCE_ALPHA_EXT: 322 case GL_SLUMINANCE8_ALPHA8_EXT: 323 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT: 324 return GL_LUMINANCE_ALPHA; 325 case GL_SLUMINANCE_EXT: 326 case GL_SLUMINANCE8_EXT: 327 case GL_COMPRESSED_SLUMINANCE_EXT: 328 return GL_LUMINANCE; 329 default: 330 ; /* fallthrough */ 331 } 332 } 333#endif /* FEATURE_EXT_texture_sRGB */ 334 335 if (ctx->Version >= 30 || 336 ctx->Extensions.EXT_texture_integer) { 337 switch (internalFormat) { 338 case GL_RGBA8UI_EXT: 339 case GL_RGBA16UI_EXT: 340 case GL_RGBA32UI_EXT: 341 case GL_RGBA8I_EXT: 342 case GL_RGBA16I_EXT: 343 case GL_RGBA32I_EXT: 344 case GL_RGB10_A2UI: 345 return GL_RGBA; 346 case GL_RGB8UI_EXT: 347 case GL_RGB16UI_EXT: 348 case GL_RGB32UI_EXT: 349 case GL_RGB8I_EXT: 350 case GL_RGB16I_EXT: 351 case GL_RGB32I_EXT: 352 return GL_RGB; 353 } 354 } 355 356 if (ctx->Extensions.EXT_texture_integer) { 357 switch (internalFormat) { 358 case GL_ALPHA8UI_EXT: 359 case GL_ALPHA16UI_EXT: 360 case GL_ALPHA32UI_EXT: 361 case GL_ALPHA8I_EXT: 362 case GL_ALPHA16I_EXT: 363 case GL_ALPHA32I_EXT: 364 return GL_ALPHA; 365 case GL_INTENSITY8UI_EXT: 366 case GL_INTENSITY16UI_EXT: 367 case GL_INTENSITY32UI_EXT: 368 case GL_INTENSITY8I_EXT: 369 case GL_INTENSITY16I_EXT: 370 case GL_INTENSITY32I_EXT: 371 return GL_INTENSITY; 372 case GL_LUMINANCE8UI_EXT: 373 case GL_LUMINANCE16UI_EXT: 374 case GL_LUMINANCE32UI_EXT: 375 case GL_LUMINANCE8I_EXT: 376 case GL_LUMINANCE16I_EXT: 377 case GL_LUMINANCE32I_EXT: 378 return GL_LUMINANCE; 379 case GL_LUMINANCE_ALPHA8UI_EXT: 380 case GL_LUMINANCE_ALPHA16UI_EXT: 381 case GL_LUMINANCE_ALPHA32UI_EXT: 382 case GL_LUMINANCE_ALPHA8I_EXT: 383 case GL_LUMINANCE_ALPHA16I_EXT: 384 case GL_LUMINANCE_ALPHA32I_EXT: 385 return GL_LUMINANCE_ALPHA; 386 default: 387 ; /* fallthrough */ 388 } 389 } 390 391 if (ctx->Extensions.ARB_texture_rg) { 392 switch (internalFormat) { 393 case GL_R16F: 394 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float. 395 */ 396 if (!ctx->Extensions.ARB_half_float_pixel) 397 break; 398 /* FALLTHROUGH */ 399 case GL_R32F: 400 if (!ctx->Extensions.ARB_texture_float) 401 break; 402 return GL_RED; 403 case GL_R8I: 404 case GL_R8UI: 405 case GL_R16I: 406 case GL_R16UI: 407 case GL_R32I: 408 case GL_R32UI: 409 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 410 break; 411 /* FALLTHROUGH */ 412 case GL_R8: 413 case GL_R16: 414 case GL_RED: 415 case GL_COMPRESSED_RED: 416 return GL_RED; 417 418 case GL_RG16F: 419 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float. 420 */ 421 if (!ctx->Extensions.ARB_half_float_pixel) 422 break; 423 /* FALLTHROUGH */ 424 case GL_RG32F: 425 if (!ctx->Extensions.ARB_texture_float) 426 break; 427 return GL_RG; 428 case GL_RG8I: 429 case GL_RG8UI: 430 case GL_RG16I: 431 case GL_RG16UI: 432 case GL_RG32I: 433 case GL_RG32UI: 434 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer) 435 break; 436 /* FALLTHROUGH */ 437 case GL_RG: 438 case GL_RG8: 439 case GL_RG16: 440 case GL_COMPRESSED_RG: 441 return GL_RG; 442 default: 443 ; /* fallthrough */ 444 } 445 } 446 447 if (ctx->Extensions.EXT_texture_shared_exponent) { 448 switch (internalFormat) { 449 case GL_RGB9_E5_EXT: 450 return GL_RGB; 451 default: 452 ; /* fallthrough */ 453 } 454 } 455 456 if (ctx->Extensions.EXT_packed_float) { 457 switch (internalFormat) { 458 case GL_R11F_G11F_B10F_EXT: 459 return GL_RGB; 460 default: 461 ; /* fallthrough */ 462 } 463 } 464 465 if (ctx->Extensions.ARB_depth_buffer_float) { 466 switch (internalFormat) { 467 case GL_DEPTH_COMPONENT32F: 468 return GL_DEPTH_COMPONENT; 469 case GL_DEPTH32F_STENCIL8: 470 return GL_DEPTH_STENCIL; 471 default: 472 ; /* fallthrough */ 473 } 474 } 475 476 if (ctx->Extensions.ARB_texture_compression_rgtc) { 477 switch (internalFormat) { 478 case GL_COMPRESSED_RED_RGTC1: 479 case GL_COMPRESSED_SIGNED_RED_RGTC1: 480 return GL_RED; 481 case GL_COMPRESSED_RG_RGTC2: 482 case GL_COMPRESSED_SIGNED_RG_RGTC2: 483 return GL_RG; 484 default: 485 ; /* fallthrough */ 486 } 487 } 488 489 if (ctx->Extensions.EXT_texture_compression_latc) { 490 switch (internalFormat) { 491 case GL_COMPRESSED_LUMINANCE_LATC1_EXT: 492 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT: 493 return GL_LUMINANCE; 494 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT: 495 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT: 496 return GL_LUMINANCE_ALPHA; 497 default: 498 ; /* fallthrough */ 499 } 500 } 501 502 if (ctx->Extensions.ATI_texture_compression_3dc) { 503 switch (internalFormat) { 504 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI: 505 return GL_LUMINANCE_ALPHA; 506 default: 507 ; /* fallthrough */ 508 } 509 } 510 511 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) { 512 switch (internalFormat) { 513 case GL_ETC1_RGB8_OES: 514 return GL_RGB; 515 default: 516 ; /* fallthrough */ 517 } 518 } 519 520 if (ctx->API == API_OPENGLES) { 521 switch (internalFormat) { 522 case GL_PALETTE4_RGB8_OES: 523 case GL_PALETTE4_R5_G6_B5_OES: 524 case GL_PALETTE8_RGB8_OES: 525 case GL_PALETTE8_R5_G6_B5_OES: 526 return GL_RGB; 527 case GL_PALETTE4_RGBA8_OES: 528 case GL_PALETTE8_RGB5_A1_OES: 529 case GL_PALETTE4_RGBA4_OES: 530 case GL_PALETTE4_RGB5_A1_OES: 531 case GL_PALETTE8_RGBA8_OES: 532 case GL_PALETTE8_RGBA4_OES: 533 return GL_RGBA; 534 default: 535 ; /* fallthrough */ 536 } 537 } 538 539 return -1; /* error */ 540} 541 542 543/** 544 * For cube map faces, return a face index in [0,5]. 545 * For other targets return 0; 546 */ 547GLuint 548_mesa_tex_target_to_face(GLenum target) 549{ 550 if (_mesa_is_cube_face(target)) 551 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X; 552 else 553 return 0; 554} 555 556 557 558/** 559 * Install gl_texture_image in a gl_texture_object according to the target 560 * and level parameters. 561 * 562 * \param tObj texture object. 563 * \param target texture target. 564 * \param level image level. 565 * \param texImage texture image. 566 */ 567static void 568set_tex_image(struct gl_texture_object *tObj, 569 GLenum target, GLint level, 570 struct gl_texture_image *texImage) 571{ 572 const GLuint face = _mesa_tex_target_to_face(target); 573 574 ASSERT(tObj); 575 ASSERT(texImage); 576 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES) 577 assert(level == 0); 578 579 tObj->Image[face][level] = texImage; 580 581 /* Set the 'back' pointer */ 582 texImage->TexObject = tObj; 583 texImage->Level = level; 584 texImage->Face = face; 585} 586 587 588/** 589 * Allocate a texture image structure. 590 * 591 * Called via ctx->Driver.NewTextureImage() unless overriden by a device 592 * driver. 593 * 594 * \return a pointer to gl_texture_image struct with all fields initialized to 595 * zero. 596 */ 597struct gl_texture_image * 598_mesa_new_texture_image( struct gl_context *ctx ) 599{ 600 (void) ctx; 601 return CALLOC_STRUCT(gl_texture_image); 602} 603 604 605/** 606 * Free a gl_texture_image and associated data. 607 * This function is a fallback called via ctx->Driver.DeleteTextureImage(). 608 * 609 * \param texImage texture image. 610 * 611 * Free the texture image structure and the associated image data. 612 */ 613void 614_mesa_delete_texture_image(struct gl_context *ctx, 615 struct gl_texture_image *texImage) 616{ 617 /* Free texImage->Data and/or any other driver-specific texture 618 * image storage. 619 */ 620 ASSERT(ctx->Driver.FreeTextureImageBuffer); 621 ctx->Driver.FreeTextureImageBuffer( ctx, texImage ); 622 free(texImage); 623} 624 625 626/** 627 * Test if a target is a proxy target. 628 * 629 * \param target texture target. 630 * 631 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise. 632 */ 633GLboolean 634_mesa_is_proxy_texture(GLenum target) 635{ 636 /* 637 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no 638 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES. 639 */ 640 assert(NUM_TEXTURE_TARGETS == 7 + 2); 641 642 return (target == GL_PROXY_TEXTURE_1D || 643 target == GL_PROXY_TEXTURE_2D || 644 target == GL_PROXY_TEXTURE_3D || 645 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB || 646 target == GL_PROXY_TEXTURE_RECTANGLE_NV || 647 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT || 648 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT); 649} 650 651 652/** 653 * Return the proxy target which corresponds to the given texture target 654 */ 655static GLenum 656get_proxy_target(GLenum target) 657{ 658 switch (target) { 659 case GL_TEXTURE_1D: 660 case GL_PROXY_TEXTURE_1D: 661 return GL_PROXY_TEXTURE_1D; 662 case GL_TEXTURE_2D: 663 case GL_PROXY_TEXTURE_2D: 664 return GL_PROXY_TEXTURE_2D; 665 case GL_TEXTURE_3D: 666 case GL_PROXY_TEXTURE_3D: 667 return GL_PROXY_TEXTURE_3D; 668 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 669 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 670 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 671 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 672 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 673 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 674 case GL_TEXTURE_CUBE_MAP_ARB: 675 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 676 return GL_PROXY_TEXTURE_CUBE_MAP_ARB; 677 case GL_TEXTURE_RECTANGLE_NV: 678 case GL_PROXY_TEXTURE_RECTANGLE_NV: 679 return GL_PROXY_TEXTURE_RECTANGLE_NV; 680 case GL_TEXTURE_1D_ARRAY_EXT: 681 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 682 return GL_PROXY_TEXTURE_1D_ARRAY_EXT; 683 case GL_TEXTURE_2D_ARRAY_EXT: 684 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 685 return GL_PROXY_TEXTURE_2D_ARRAY_EXT; 686 default: 687 _mesa_problem(NULL, "unexpected target in get_proxy_target()"); 688 return 0; 689 } 690} 691 692 693/** 694 * Get the texture object that corresponds to the target of the given 695 * texture unit. The target should have already been checked for validity. 696 * 697 * \param ctx GL context. 698 * \param texUnit texture unit. 699 * \param target texture target. 700 * 701 * \return pointer to the texture object on success, or NULL on failure. 702 */ 703struct gl_texture_object * 704_mesa_select_tex_object(struct gl_context *ctx, 705 const struct gl_texture_unit *texUnit, 706 GLenum target) 707{ 708 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array || 709 ctx->Extensions.EXT_texture_array); 710 711 switch (target) { 712 case GL_TEXTURE_1D: 713 return texUnit->CurrentTex[TEXTURE_1D_INDEX]; 714 case GL_PROXY_TEXTURE_1D: 715 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]; 716 case GL_TEXTURE_2D: 717 return texUnit->CurrentTex[TEXTURE_2D_INDEX]; 718 case GL_PROXY_TEXTURE_2D: 719 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]; 720 case GL_TEXTURE_3D: 721 return texUnit->CurrentTex[TEXTURE_3D_INDEX]; 722 case GL_PROXY_TEXTURE_3D: 723 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]; 724 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 725 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 726 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 727 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 728 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 729 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 730 case GL_TEXTURE_CUBE_MAP_ARB: 731 return ctx->Extensions.ARB_texture_cube_map 732 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL; 733 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 734 return ctx->Extensions.ARB_texture_cube_map 735 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL; 736 case GL_TEXTURE_RECTANGLE_NV: 737 return ctx->Extensions.NV_texture_rectangle 738 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL; 739 case GL_PROXY_TEXTURE_RECTANGLE_NV: 740 return ctx->Extensions.NV_texture_rectangle 741 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL; 742 case GL_TEXTURE_1D_ARRAY_EXT: 743 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 744 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 745 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL; 746 case GL_TEXTURE_2D_ARRAY_EXT: 747 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 748 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 749 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL; 750 case GL_TEXTURE_BUFFER: 751 return ctx->Extensions.ARB_texture_buffer_object 752 ? texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL; 753 case GL_TEXTURE_EXTERNAL_OES: 754 return ctx->Extensions.OES_EGL_image_external 755 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL; 756 default: 757 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()"); 758 return NULL; 759 } 760} 761 762 763/** 764 * Return pointer to texture object for given target on current texture unit. 765 */ 766struct gl_texture_object * 767_mesa_get_current_tex_object(struct gl_context *ctx, GLenum target) 768{ 769 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 770 return _mesa_select_tex_object(ctx, texUnit, target); 771} 772 773 774/** 775 * Get a texture image pointer from a texture object, given a texture 776 * target and mipmap level. The target and level parameters should 777 * have already been error-checked. 778 * 779 * \param ctx GL context. 780 * \param texObj texture unit. 781 * \param target texture target. 782 * \param level image level. 783 * 784 * \return pointer to the texture image structure, or NULL on failure. 785 */ 786struct gl_texture_image * 787_mesa_select_tex_image(struct gl_context *ctx, 788 const struct gl_texture_object *texObj, 789 GLenum target, GLint level) 790{ 791 const GLuint face = _mesa_tex_target_to_face(target); 792 793 ASSERT(texObj); 794 ASSERT(level >= 0); 795 ASSERT(level < MAX_TEXTURE_LEVELS); 796 797 return texObj->Image[face][level]; 798} 799 800 801/** 802 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate 803 * it and install it. Only return NULL if passed a bad parameter or run 804 * out of memory. 805 */ 806struct gl_texture_image * 807_mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj, 808 GLenum target, GLint level) 809{ 810 struct gl_texture_image *texImage; 811 812 if (!texObj) 813 return NULL; 814 815 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 816 if (!texImage) { 817 texImage = ctx->Driver.NewTextureImage(ctx); 818 if (!texImage) { 819 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation"); 820 return NULL; 821 } 822 823 set_tex_image(texObj, target, level, texImage); 824 } 825 826 return texImage; 827} 828 829 830/** 831 * Return pointer to the specified proxy texture image. 832 * Note that proxy textures are per-context, not per-texture unit. 833 * \return pointer to texture image or NULL if invalid target, invalid 834 * level, or out of memory. 835 */ 836struct gl_texture_image * 837_mesa_get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level) 838{ 839 struct gl_texture_image *texImage; 840 GLuint texIndex; 841 842 if (level < 0) 843 return NULL; 844 845 switch (target) { 846 case GL_PROXY_TEXTURE_1D: 847 if (level >= ctx->Const.MaxTextureLevels) 848 return NULL; 849 texIndex = TEXTURE_1D_INDEX; 850 break; 851 case GL_PROXY_TEXTURE_2D: 852 if (level >= ctx->Const.MaxTextureLevels) 853 return NULL; 854 texIndex = TEXTURE_2D_INDEX; 855 break; 856 case GL_PROXY_TEXTURE_3D: 857 if (level >= ctx->Const.Max3DTextureLevels) 858 return NULL; 859 texIndex = TEXTURE_3D_INDEX; 860 break; 861 case GL_PROXY_TEXTURE_CUBE_MAP: 862 if (level >= ctx->Const.MaxCubeTextureLevels) 863 return NULL; 864 texIndex = TEXTURE_CUBE_INDEX; 865 break; 866 case GL_PROXY_TEXTURE_RECTANGLE_NV: 867 if (level > 0) 868 return NULL; 869 texIndex = TEXTURE_RECT_INDEX; 870 break; 871 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 872 if (level >= ctx->Const.MaxTextureLevels) 873 return NULL; 874 texIndex = TEXTURE_1D_ARRAY_INDEX; 875 break; 876 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 877 if (level >= ctx->Const.MaxTextureLevels) 878 return NULL; 879 texIndex = TEXTURE_2D_ARRAY_INDEX; 880 break; 881 default: 882 return NULL; 883 } 884 885 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level]; 886 if (!texImage) { 887 texImage = ctx->Driver.NewTextureImage(ctx); 888 if (!texImage) { 889 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation"); 890 return NULL; 891 } 892 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage; 893 /* Set the 'back' pointer */ 894 texImage->TexObject = ctx->Texture.ProxyTex[texIndex]; 895 } 896 return texImage; 897} 898 899 900/** 901 * Get the maximum number of allowed mipmap levels. 902 * 903 * \param ctx GL context. 904 * \param target texture target. 905 * 906 * \return the maximum number of allowed mipmap levels for the given 907 * texture target, or zero if passed a bad target. 908 * 909 * \sa gl_constants. 910 */ 911GLint 912_mesa_max_texture_levels(struct gl_context *ctx, GLenum target) 913{ 914 switch (target) { 915 case GL_TEXTURE_1D: 916 case GL_PROXY_TEXTURE_1D: 917 case GL_TEXTURE_2D: 918 case GL_PROXY_TEXTURE_2D: 919 return ctx->Const.MaxTextureLevels; 920 case GL_TEXTURE_3D: 921 case GL_PROXY_TEXTURE_3D: 922 return ctx->Const.Max3DTextureLevels; 923 case GL_TEXTURE_CUBE_MAP: 924 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB: 925 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB: 926 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB: 927 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB: 928 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB: 929 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: 930 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 931 return ctx->Extensions.ARB_texture_cube_map 932 ? ctx->Const.MaxCubeTextureLevels : 0; 933 case GL_TEXTURE_RECTANGLE_NV: 934 case GL_PROXY_TEXTURE_RECTANGLE_NV: 935 return ctx->Extensions.NV_texture_rectangle ? 1 : 0; 936 case GL_TEXTURE_1D_ARRAY_EXT: 937 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 938 case GL_TEXTURE_2D_ARRAY_EXT: 939 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 940 return (ctx->Extensions.MESA_texture_array || 941 ctx->Extensions.EXT_texture_array) 942 ? ctx->Const.MaxTextureLevels : 0; 943 case GL_TEXTURE_BUFFER: 944 return _mesa_is_desktop_gl(ctx) && 945 (ctx->Extensions.ARB_texture_buffer_object || 946 (ctx->Version >= 31)) ? 1 : 0; 947 case GL_TEXTURE_EXTERNAL_OES: 948 /* fall-through */ 949 default: 950 return 0; /* bad target */ 951 } 952} 953 954 955/** 956 * Return number of dimensions per mipmap level for the given texture target. 957 */ 958GLint 959_mesa_get_texture_dimensions(GLenum target) 960{ 961 switch (target) { 962 case GL_TEXTURE_1D: 963 case GL_PROXY_TEXTURE_1D: 964 return 1; 965 case GL_TEXTURE_2D: 966 case GL_TEXTURE_RECTANGLE: 967 case GL_TEXTURE_CUBE_MAP: 968 case GL_PROXY_TEXTURE_2D: 969 case GL_PROXY_TEXTURE_RECTANGLE: 970 case GL_PROXY_TEXTURE_CUBE_MAP: 971 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 972 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 973 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 974 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 975 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 976 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 977 case GL_TEXTURE_1D_ARRAY: 978 case GL_PROXY_TEXTURE_1D_ARRAY: 979 case GL_TEXTURE_EXTERNAL_OES: 980 return 2; 981 case GL_TEXTURE_3D: 982 case GL_PROXY_TEXTURE_3D: 983 case GL_TEXTURE_2D_ARRAY: 984 case GL_PROXY_TEXTURE_2D_ARRAY: 985 return 3; 986 case GL_TEXTURE_BUFFER: 987 /* fall-through */ 988 default: 989 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()", 990 target); 991 return 2; 992 } 993} 994 995 996 997 998#if 000 /* not used anymore */ 999/* 1000 * glTexImage[123]D can accept a NULL image pointer. In this case we 1001 * create a texture image with unspecified image contents per the OpenGL 1002 * spec. 1003 */ 1004static GLubyte * 1005make_null_texture(GLint width, GLint height, GLint depth, GLenum format) 1006{ 1007 const GLint components = _mesa_components_in_format(format); 1008 const GLint numPixels = width * height * depth; 1009 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte)); 1010 1011#ifdef DEBUG 1012 /* 1013 * Let's see if anyone finds this. If glTexImage2D() is called with 1014 * a NULL image pointer then load the texture image with something 1015 * interesting instead of leaving it indeterminate. 1016 */ 1017 if (data) { 1018 static const char message[8][32] = { 1019 " X X XXXXX XXX X ", 1020 " XX XX X X X X X ", 1021 " X X X X X X X ", 1022 " X X XXXX XXX XXXXX ", 1023 " X X X X X X ", 1024 " X X X X X X X ", 1025 " X X XXXXX XXX X X ", 1026 " " 1027 }; 1028 1029 GLubyte *imgPtr = data; 1030 GLint h, i, j, k; 1031 for (h = 0; h < depth; h++) { 1032 for (i = 0; i < height; i++) { 1033 GLint srcRow = 7 - (i % 8); 1034 for (j = 0; j < width; j++) { 1035 GLint srcCol = j % 32; 1036 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70; 1037 for (k = 0; k < components; k++) { 1038 *imgPtr++ = texel; 1039 } 1040 } 1041 } 1042 } 1043 } 1044#endif 1045 1046 return data; 1047} 1048#endif 1049 1050 1051 1052/** 1053 * Set the size and format-related fields of a gl_texture_image struct 1054 * to zero. This is used when a proxy texture test fails. 1055 */ 1056static void 1057clear_teximage_fields(struct gl_texture_image *img) 1058{ 1059 ASSERT(img); 1060 img->_BaseFormat = 0; 1061 img->InternalFormat = 0; 1062 img->Border = 0; 1063 img->Width = 0; 1064 img->Height = 0; 1065 img->Depth = 0; 1066 img->Width2 = 0; 1067 img->Height2 = 0; 1068 img->Depth2 = 0; 1069 img->WidthLog2 = 0; 1070 img->HeightLog2 = 0; 1071 img->DepthLog2 = 0; 1072 img->TexFormat = MESA_FORMAT_NONE; 1073} 1074 1075 1076/** 1077 * Initialize basic fields of the gl_texture_image struct. 1078 * 1079 * \param ctx GL context. 1080 * \param img texture image structure to be initialized. 1081 * \param width image width. 1082 * \param height image height. 1083 * \param depth image depth. 1084 * \param border image border. 1085 * \param internalFormat internal format. 1086 * \param format the actual hardware format (one of MESA_FORMAT_*) 1087 * 1088 * Fills in the fields of \p img with the given information. 1089 * Note: width, height and depth include the border. 1090 */ 1091void 1092_mesa_init_teximage_fields(struct gl_context *ctx, 1093 struct gl_texture_image *img, 1094 GLsizei width, GLsizei height, GLsizei depth, 1095 GLint border, GLenum internalFormat, 1096 gl_format format) 1097{ 1098 GLenum target; 1099 ASSERT(img); 1100 ASSERT(width >= 0); 1101 ASSERT(height >= 0); 1102 ASSERT(depth >= 0); 1103 1104 target = img->TexObject->Target; 1105 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat ); 1106 ASSERT(img->_BaseFormat > 0); 1107 img->InternalFormat = internalFormat; 1108 img->Border = border; 1109 img->Width = width; 1110 img->Height = height; 1111 img->Depth = depth; 1112 1113 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */ 1114 img->WidthLog2 = _mesa_logbase2(img->Width2); 1115 1116 switch(target) { 1117 case GL_TEXTURE_1D: 1118 case GL_TEXTURE_BUFFER: 1119 case GL_PROXY_TEXTURE_1D: 1120 if (height == 0) 1121 img->Height2 = 0; 1122 else 1123 img->Height2 = 1; 1124 img->HeightLog2 = 0; 1125 if (depth == 0) 1126 img->Depth2 = 0; 1127 else 1128 img->Depth2 = 1; 1129 img->DepthLog2 = 0; 1130 break; 1131 case GL_TEXTURE_1D_ARRAY: 1132 case GL_PROXY_TEXTURE_1D_ARRAY: 1133 img->Height2 = height; /* no border */ 1134 img->HeightLog2 = 0; /* not used */ 1135 if (depth == 0) 1136 img->Depth2 = 0; 1137 else 1138 img->Depth2 = 1; 1139 img->DepthLog2 = 0; 1140 break; 1141 case GL_TEXTURE_2D: 1142 case GL_TEXTURE_RECTANGLE: 1143 case GL_TEXTURE_CUBE_MAP: 1144 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1145 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1146 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1147 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1148 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1149 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1150 case GL_TEXTURE_EXTERNAL_OES: 1151 case GL_PROXY_TEXTURE_2D: 1152 case GL_PROXY_TEXTURE_RECTANGLE: 1153 case GL_PROXY_TEXTURE_CUBE_MAP: 1154 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1155 img->HeightLog2 = _mesa_logbase2(img->Height2); 1156 if (depth == 0) 1157 img->Depth2 = 0; 1158 else 1159 img->Depth2 = 1; 1160 img->DepthLog2 = 0; 1161 break; 1162 case GL_TEXTURE_2D_ARRAY: 1163 case GL_PROXY_TEXTURE_2D_ARRAY: 1164 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1165 img->HeightLog2 = _mesa_logbase2(img->Height2); 1166 img->Depth2 = depth; /* no border */ 1167 img->DepthLog2 = 0; /* not used */ 1168 break; 1169 case GL_TEXTURE_3D: 1170 case GL_PROXY_TEXTURE_3D: 1171 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */ 1172 img->HeightLog2 = _mesa_logbase2(img->Height2); 1173 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */ 1174 img->DepthLog2 = _mesa_logbase2(img->Depth2); 1175 break; 1176 default: 1177 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()", 1178 target); 1179 } 1180 1181 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2); 1182 img->TexFormat = format; 1183} 1184 1185 1186/** 1187 * Free and clear fields of the gl_texture_image struct. 1188 * 1189 * \param ctx GL context. 1190 * \param texImage texture image structure to be cleared. 1191 * 1192 * After the call, \p texImage will have no data associated with it. Its 1193 * fields are cleared so that its parent object will test incomplete. 1194 */ 1195void 1196_mesa_clear_texture_image(struct gl_context *ctx, 1197 struct gl_texture_image *texImage) 1198{ 1199 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 1200 clear_teximage_fields(texImage); 1201} 1202 1203 1204/** 1205 * This is the fallback for Driver.TestProxyTexImage(). Test the texture 1206 * level, width, height and depth against the ctx->Const limits for textures. 1207 * 1208 * A hardware driver might override this function if, for example, the 1209 * max 3D texture size is 512x512x64 (i.e. not a cube). 1210 * 1211 * Note that width, height, depth == 0 is not an error. However, a 1212 * texture with zero width/height/depth will be considered "incomplete" 1213 * and texturing will effectively be disabled. 1214 * 1215 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D, 1216 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV, 1217 * GL_PROXY_TEXTURE_CUBE_MAP_ARB. 1218 * \param level as passed to glTexImage 1219 * \param internalFormat as passed to glTexImage 1220 * \param format as passed to glTexImage 1221 * \param type as passed to glTexImage 1222 * \param width as passed to glTexImage 1223 * \param height as passed to glTexImage 1224 * \param depth as passed to glTexImage 1225 * \param border as passed to glTexImage 1226 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable. 1227 */ 1228GLboolean 1229_mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level, 1230 GLint internalFormat, GLenum format, GLenum type, 1231 GLint width, GLint height, GLint depth, GLint border) 1232{ 1233 GLint maxSize; 1234 1235 (void) internalFormat; 1236 (void) format; 1237 (void) type; 1238 1239 switch (target) { 1240 case GL_PROXY_TEXTURE_1D: 1241 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1242 if (width < 2 * border || width > 2 * border + maxSize) 1243 return GL_FALSE; 1244 if (level >= ctx->Const.MaxTextureLevels) 1245 return GL_FALSE; 1246 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1247 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1248 return GL_FALSE; 1249 } 1250 return GL_TRUE; 1251 1252 case GL_PROXY_TEXTURE_2D: 1253 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1254 if (width < 2 * border || width > 2 * border + maxSize) 1255 return GL_FALSE; 1256 if (height < 2 * border || height > 2 * border + maxSize) 1257 return GL_FALSE; 1258 if (level >= ctx->Const.MaxTextureLevels) 1259 return GL_FALSE; 1260 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1261 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1262 return GL_FALSE; 1263 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1264 return GL_FALSE; 1265 } 1266 return GL_TRUE; 1267 1268 case GL_PROXY_TEXTURE_3D: 1269 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1); 1270 if (width < 2 * border || width > 2 * border + maxSize) 1271 return GL_FALSE; 1272 if (height < 2 * border || height > 2 * border + maxSize) 1273 return GL_FALSE; 1274 if (depth < 2 * border || depth > 2 * border + maxSize) 1275 return GL_FALSE; 1276 if (level >= ctx->Const.Max3DTextureLevels) 1277 return GL_FALSE; 1278 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1279 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1280 return GL_FALSE; 1281 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1282 return GL_FALSE; 1283 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) 1284 return GL_FALSE; 1285 } 1286 return GL_TRUE; 1287 1288 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1289 maxSize = ctx->Const.MaxTextureRectSize; 1290 if (width < 0 || width > maxSize) 1291 return GL_FALSE; 1292 if (height < 0 || height > maxSize) 1293 return GL_FALSE; 1294 if (level != 0) 1295 return GL_FALSE; 1296 return GL_TRUE; 1297 1298 case GL_PROXY_TEXTURE_CUBE_MAP_ARB: 1299 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1); 1300 if (width < 2 * border || width > 2 * border + maxSize) 1301 return GL_FALSE; 1302 if (height < 2 * border || height > 2 * border + maxSize) 1303 return GL_FALSE; 1304 if (level >= ctx->Const.MaxCubeTextureLevels) 1305 return GL_FALSE; 1306 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1307 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1308 return GL_FALSE; 1309 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1310 return GL_FALSE; 1311 } 1312 return GL_TRUE; 1313 1314 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1315 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1316 if (width < 2 * border || width > 2 * border + maxSize) 1317 return GL_FALSE; 1318 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) 1319 return GL_FALSE; 1320 if (level >= ctx->Const.MaxTextureLevels) 1321 return GL_FALSE; 1322 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1323 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1324 return GL_FALSE; 1325 } 1326 return GL_TRUE; 1327 1328 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1329 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); 1330 if (width < 2 * border || width > 2 * border + maxSize) 1331 return GL_FALSE; 1332 if (height < 2 * border || height > 2 * border + maxSize) 1333 return GL_FALSE; 1334 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) 1335 return GL_FALSE; 1336 if (level >= ctx->Const.MaxTextureLevels) 1337 return GL_FALSE; 1338 if (!ctx->Extensions.ARB_texture_non_power_of_two) { 1339 if (width > 0 && !_mesa_is_pow_two(width - 2 * border)) 1340 return GL_FALSE; 1341 if (height > 0 && !_mesa_is_pow_two(height - 2 * border)) 1342 return GL_FALSE; 1343 } 1344 return GL_TRUE; 1345 1346 default: 1347 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage"); 1348 return GL_FALSE; 1349 } 1350} 1351 1352 1353/** 1354 * Check if the memory used by the texture would exceed the driver's limit. 1355 * This lets us support a max 3D texture size of 8K (for example) but 1356 * prevents allocating a full 8K x 8K x 8K texture. 1357 * XXX this could be rolled into the proxy texture size test (above) but 1358 * we don't have the actual texture internal format at that point. 1359 */ 1360static GLboolean 1361legal_texture_size(struct gl_context *ctx, gl_format format, 1362 GLint width, GLint height, GLint depth) 1363{ 1364 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth); 1365 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */ 1366 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes; 1367} 1368 1369 1370/** 1371 * Return true if the format is only valid for glCompressedTexImage. 1372 */ 1373static GLboolean 1374compressedteximage_only_format(const struct gl_context *ctx, GLenum format) 1375{ 1376 switch (format) { 1377 case GL_ETC1_RGB8_OES: 1378 return GL_TRUE; 1379 default: 1380 return GL_FALSE; 1381 } 1382} 1383 1384 1385/** 1386 * Helper function to determine whether a target and specific compression 1387 * format are supported. 1388 */ 1389static GLboolean 1390target_can_be_compressed(const struct gl_context *ctx, GLenum target, 1391 GLenum intFormat) 1392{ 1393 (void) intFormat; /* not used yet */ 1394 1395 switch (target) { 1396 case GL_TEXTURE_2D: 1397 case GL_PROXY_TEXTURE_2D: 1398 return GL_TRUE; /* true for any compressed format so far */ 1399 case GL_PROXY_TEXTURE_CUBE_MAP: 1400 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1401 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1402 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1403 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1404 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1405 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1406 return ctx->Extensions.ARB_texture_cube_map; 1407 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1408 case GL_TEXTURE_2D_ARRAY_EXT: 1409 return (ctx->Extensions.MESA_texture_array || 1410 ctx->Extensions.EXT_texture_array); 1411 default: 1412 return GL_FALSE; 1413 } 1414} 1415 1416 1417/** 1418 * Check if the given texture target value is legal for a 1419 * glTexImage1/2/3D call. 1420 */ 1421static GLboolean 1422legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1423{ 1424 switch (dims) { 1425 case 1: 1426 switch (target) { 1427 case GL_TEXTURE_1D: 1428 case GL_PROXY_TEXTURE_1D: 1429 return _mesa_is_desktop_gl(ctx); 1430 default: 1431 return GL_FALSE; 1432 } 1433 case 2: 1434 switch (target) { 1435 case GL_TEXTURE_2D: 1436 return GL_TRUE; 1437 case GL_PROXY_TEXTURE_2D: 1438 return _mesa_is_desktop_gl(ctx); 1439 case GL_PROXY_TEXTURE_CUBE_MAP: 1440 return _mesa_is_desktop_gl(ctx) 1441 && ctx->Extensions.ARB_texture_cube_map; 1442 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1443 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1444 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1445 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1446 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1447 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1448 return ctx->Extensions.ARB_texture_cube_map; 1449 case GL_TEXTURE_RECTANGLE_NV: 1450 case GL_PROXY_TEXTURE_RECTANGLE_NV: 1451 return _mesa_is_desktop_gl(ctx) 1452 && ctx->Extensions.NV_texture_rectangle; 1453 case GL_TEXTURE_1D_ARRAY_EXT: 1454 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 1455 return _mesa_is_desktop_gl(ctx) 1456 && (ctx->Extensions.MESA_texture_array || 1457 ctx->Extensions.EXT_texture_array); 1458 default: 1459 return GL_FALSE; 1460 } 1461 case 3: 1462 switch (target) { 1463 case GL_TEXTURE_3D: 1464 return GL_TRUE; 1465 case GL_PROXY_TEXTURE_3D: 1466 return _mesa_is_desktop_gl(ctx); 1467 case GL_TEXTURE_2D_ARRAY_EXT: 1468 return (_mesa_is_desktop_gl(ctx) 1469 && (ctx->Extensions.MESA_texture_array || 1470 ctx->Extensions.EXT_texture_array)) 1471 || _mesa_is_gles3(ctx); 1472 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 1473 return _mesa_is_desktop_gl(ctx) 1474 && (ctx->Extensions.MESA_texture_array || 1475 ctx->Extensions.EXT_texture_array); 1476 default: 1477 return GL_FALSE; 1478 } 1479 default: 1480 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims); 1481 return GL_FALSE; 1482 } 1483} 1484 1485 1486/** 1487 * Check if the given texture target value is legal for a 1488 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call. 1489 * The difference compared to legal_teximage_target() above is that 1490 * proxy targets are not supported. 1491 */ 1492static GLboolean 1493legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target) 1494{ 1495 switch (dims) { 1496 case 1: 1497 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D; 1498 case 2: 1499 switch (target) { 1500 case GL_TEXTURE_2D: 1501 return GL_TRUE; 1502 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 1503 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 1504 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 1505 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 1506 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 1507 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 1508 return ctx->Extensions.ARB_texture_cube_map; 1509 case GL_TEXTURE_RECTANGLE_NV: 1510 return _mesa_is_desktop_gl(ctx) 1511 && ctx->Extensions.NV_texture_rectangle; 1512 case GL_TEXTURE_1D_ARRAY_EXT: 1513 return _mesa_is_desktop_gl(ctx) 1514 && (ctx->Extensions.MESA_texture_array || 1515 ctx->Extensions.EXT_texture_array); 1516 default: 1517 return GL_FALSE; 1518 } 1519 case 3: 1520 switch (target) { 1521 case GL_TEXTURE_3D: 1522 return GL_TRUE; 1523 case GL_TEXTURE_2D_ARRAY_EXT: 1524 return (_mesa_is_desktop_gl(ctx) 1525 && (ctx->Extensions.MESA_texture_array || 1526 ctx->Extensions.EXT_texture_array)) 1527 || _mesa_is_gles3(ctx); 1528 default: 1529 return GL_FALSE; 1530 } 1531 default: 1532 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()", 1533 dims); 1534 return GL_FALSE; 1535 } 1536} 1537 1538 1539/** 1540 * Helper function to determine if a texture object is mutable (in terms 1541 * of GL_ARB_texture_storage). 1542 */ 1543static GLboolean 1544mutable_tex_object(struct gl_context *ctx, GLenum target) 1545{ 1546 if (ctx->Extensions.ARB_texture_storage) { 1547 struct gl_texture_object *texObj = 1548 _mesa_get_current_tex_object(ctx, target); 1549 return !texObj->Immutable; 1550 } 1551 return GL_TRUE; 1552} 1553 1554 1555 1556/** 1557 * Test the glTexImage[123]D() parameters for errors. 1558 * 1559 * \param ctx GL context. 1560 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1561 * \param target texture target given by the user. 1562 * \param level image level given by the user. 1563 * \param internalFormat internal format given by the user. 1564 * \param format pixel data format given by the user. 1565 * \param type pixel data type given by the user. 1566 * \param width image width given by the user. 1567 * \param height image height given by the user. 1568 * \param depth image depth given by the user. 1569 * \param border image border given by the user. 1570 * 1571 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1572 * 1573 * Verifies each of the parameters against the constants specified in 1574 * __struct gl_contextRec::Const and the supported extensions, and according 1575 * to the OpenGL specification. 1576 */ 1577static GLboolean 1578texture_error_check( struct gl_context *ctx, 1579 GLuint dimensions, GLenum target, 1580 GLint level, GLint internalFormat, 1581 GLenum format, GLenum type, 1582 GLint width, GLint height, 1583 GLint depth, GLint border ) 1584{ 1585 const GLenum proxyTarget = get_proxy_target(target); 1586 const GLboolean isProxy = target == proxyTarget; 1587 GLboolean sizeOK = GL_TRUE; 1588 GLboolean colorFormat; 1589 GLenum err; 1590 1591 /* Even though there are no color-index textures, we still have to support 1592 * uploading color-index data and remapping it to RGB via the 1593 * GL_PIXEL_MAP_I_TO_[RGBA] tables. 1594 */ 1595 const GLboolean indexFormat = (format == GL_COLOR_INDEX); 1596 1597 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1598 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1599 if (!isProxy) { 1600 _mesa_error(ctx, GL_INVALID_VALUE, 1601 "glTexImage%dD(level=%d)", dimensions, level); 1602 } 1603 return GL_TRUE; 1604 } 1605 1606 /* Check border */ 1607 if (border < 0 || border > 1 || 1608 ((target == GL_TEXTURE_RECTANGLE_NV || 1609 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 1610 if (!isProxy) { 1611 _mesa_error(ctx, GL_INVALID_VALUE, 1612 "glTexImage%dD(border=%d)", dimensions, border); 1613 } 1614 return GL_TRUE; 1615 } 1616 1617 if (width < 0 || height < 0 || depth < 0) { 1618 if (!isProxy) { 1619 _mesa_error(ctx, GL_INVALID_VALUE, 1620 "glTexImage%dD(width, height or depth < 0)", dimensions); 1621 } 1622 return GL_TRUE; 1623 } 1624 1625 /* Do this simple check before calling the TestProxyTexImage() function */ 1626 if (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 1627 sizeOK = (width == height); 1628 } 1629 1630 /* 1631 * Use the proxy texture driver hook to see if the size/level/etc are 1632 * legal. 1633 */ 1634 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 1635 internalFormat, format, 1636 type, width, height, 1637 depth, border); 1638 if (!sizeOK) { 1639 if (!isProxy) { 1640 _mesa_error(ctx, GL_INVALID_VALUE, 1641 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)", 1642 dimensions, level, width, height, depth); 1643 } 1644 return GL_TRUE; 1645 } 1646 1647 /* Check internalFormat */ 1648 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 1649 if (!isProxy) { 1650 _mesa_error(ctx, GL_INVALID_VALUE, 1651 "glTexImage%dD(internalFormat=%s)", 1652 dimensions, _mesa_lookup_enum_by_nr(internalFormat)); 1653 } 1654 return GL_TRUE; 1655 } 1656 1657 /* Check incoming image format and type */ 1658 err = _mesa_error_check_format_and_type(ctx, format, type); 1659 if (err != GL_NO_ERROR) { 1660 if (!isProxy) { 1661 _mesa_error(ctx, err, 1662 "glTexImage%dD(incompatible format 0x%x, type 0x%x)", 1663 dimensions, format, type); 1664 } 1665 return GL_TRUE; 1666 } 1667 1668 /* make sure internal format and format basically agree */ 1669 colorFormat = _mesa_is_color_format(format); 1670 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) || 1671 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) || 1672 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) || 1673 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) || 1674 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) { 1675 if (!isProxy) 1676 _mesa_error(ctx, GL_INVALID_OPERATION, 1677 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)", 1678 dimensions, internalFormat, format); 1679 return GL_TRUE; 1680 } 1681 1682 /* additional checks for ycbcr textures */ 1683 if (internalFormat == GL_YCBCR_MESA) { 1684 ASSERT(ctx->Extensions.MESA_ycbcr_texture); 1685 if (type != GL_UNSIGNED_SHORT_8_8_MESA && 1686 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) { 1687 char message[100]; 1688 _mesa_snprintf(message, sizeof(message), 1689 "glTexImage%dD(format/type YCBCR mismatch", dimensions); 1690 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message); 1691 return GL_TRUE; /* error */ 1692 } 1693 if (target != GL_TEXTURE_2D && 1694 target != GL_PROXY_TEXTURE_2D && 1695 target != GL_TEXTURE_RECTANGLE_NV && 1696 target != GL_PROXY_TEXTURE_RECTANGLE_NV) { 1697 if (!isProxy) 1698 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)"); 1699 return GL_TRUE; 1700 } 1701 if (border != 0) { 1702 if (!isProxy) { 1703 char message[100]; 1704 _mesa_snprintf(message, sizeof(message), 1705 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)", 1706 dimensions, border); 1707 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message); 1708 } 1709 return GL_TRUE; 1710 } 1711 } 1712 1713 /* additional checks for depth textures */ 1714 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) { 1715 /* Only 1D, 2D, rect, array and cube textures supported, not 3D 1716 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */ 1717 if (target != GL_TEXTURE_1D && 1718 target != GL_PROXY_TEXTURE_1D && 1719 target != GL_TEXTURE_2D && 1720 target != GL_PROXY_TEXTURE_2D && 1721 target != GL_TEXTURE_1D_ARRAY && 1722 target != GL_PROXY_TEXTURE_1D_ARRAY && 1723 target != GL_TEXTURE_2D_ARRAY && 1724 target != GL_PROXY_TEXTURE_2D_ARRAY && 1725 target != GL_TEXTURE_RECTANGLE_ARB && 1726 target != GL_PROXY_TEXTURE_RECTANGLE_ARB && 1727 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) && 1728 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4))) { 1729 if (!isProxy) 1730 _mesa_error(ctx, GL_INVALID_ENUM, 1731 "glTexImage(target/internalFormat)"); 1732 return GL_TRUE; 1733 } 1734 } 1735 1736 /* additional checks for compressed textures */ 1737 if (_mesa_is_compressed_format(ctx, internalFormat)) { 1738 if (!target_can_be_compressed(ctx, target, internalFormat)) { 1739 if (!isProxy) 1740 _mesa_error(ctx, GL_INVALID_ENUM, 1741 "glTexImage%dD(target)", dimensions); 1742 return GL_TRUE; 1743 } 1744 if (compressedteximage_only_format(ctx, internalFormat)) { 1745 _mesa_error(ctx, GL_INVALID_OPERATION, 1746 "glTexImage%dD(no compression for format)", dimensions); 1747 return GL_TRUE; 1748 } 1749 if (border != 0) { 1750 if (!isProxy) { 1751 _mesa_error(ctx, GL_INVALID_OPERATION, 1752 "glTexImage%dD(border!=0)", dimensions); 1753 } 1754 return GL_TRUE; 1755 } 1756 } 1757 1758 /* additional checks for integer textures */ 1759 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) && 1760 (_mesa_is_enum_format_integer(format) != 1761 _mesa_is_enum_format_integer(internalFormat))) { 1762 if (!isProxy) { 1763 _mesa_error(ctx, GL_INVALID_OPERATION, 1764 "glTexImage%dD(integer/non-integer format mismatch)", 1765 dimensions); 1766 } 1767 return GL_TRUE; 1768 } 1769 1770 if (!mutable_tex_object(ctx, target)) { 1771 _mesa_error(ctx, GL_INVALID_OPERATION, 1772 "glTexImage%dD(immutable texture)", dimensions); 1773 return GL_TRUE; 1774 } 1775 1776 /* if we get here, the parameters are OK */ 1777 return GL_FALSE; 1778} 1779 1780 1781/** 1782 * Test glTexSubImage[123]D() parameters for errors. 1783 * 1784 * \param ctx GL context. 1785 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1786 * \param target texture target given by the user. 1787 * \param level image level given by the user. 1788 * \param xoffset sub-image x offset given by the user. 1789 * \param yoffset sub-image y offset given by the user. 1790 * \param zoffset sub-image z offset given by the user. 1791 * \param format pixel data format given by the user. 1792 * \param type pixel data type given by the user. 1793 * \param width image width given by the user. 1794 * \param height image height given by the user. 1795 * \param depth image depth given by the user. 1796 * 1797 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1798 * 1799 * Verifies each of the parameters against the constants specified in 1800 * __struct gl_contextRec::Const and the supported extensions, and according 1801 * to the OpenGL specification. 1802 */ 1803static GLboolean 1804subtexture_error_check( struct gl_context *ctx, GLuint dimensions, 1805 GLenum target, GLint level, 1806 GLint xoffset, GLint yoffset, GLint zoffset, 1807 GLint width, GLint height, GLint depth, 1808 GLenum format, GLenum type ) 1809{ 1810 GLenum err; 1811 1812 /* Basic level check */ 1813 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1814 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level); 1815 return GL_TRUE; 1816 } 1817 1818 /* Check for negative sizes */ 1819 if (width < 0) { 1820 _mesa_error(ctx, GL_INVALID_VALUE, 1821 "glTexSubImage%dD(width=%d)", dimensions, width); 1822 return GL_TRUE; 1823 } 1824 if (height < 0 && dimensions > 1) { 1825 _mesa_error(ctx, GL_INVALID_VALUE, 1826 "glTexSubImage%dD(height=%d)", dimensions, height); 1827 return GL_TRUE; 1828 } 1829 if (depth < 0 && dimensions > 2) { 1830 _mesa_error(ctx, GL_INVALID_VALUE, 1831 "glTexSubImage%dD(depth=%d)", dimensions, depth); 1832 return GL_TRUE; 1833 } 1834 1835 err = _mesa_error_check_format_and_type(ctx, format, type); 1836 if (err != GL_NO_ERROR) { 1837 _mesa_error(ctx, err, 1838 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)", 1839 dimensions, format, type); 1840 return GL_TRUE; 1841 } 1842 1843 return GL_FALSE; 1844} 1845 1846 1847/** 1848 * Do second part of glTexSubImage which depends on the destination texture. 1849 * \return GL_TRUE if error recorded, GL_FALSE otherwise 1850 */ 1851static GLboolean 1852subtexture_error_check2( struct gl_context *ctx, GLuint dimensions, 1853 GLenum target, GLint level, 1854 GLint xoffset, GLint yoffset, GLint zoffset, 1855 GLint width, GLint height, GLint depth, 1856 GLenum format, GLenum type, 1857 const struct gl_texture_image *destTex ) 1858{ 1859 if (!destTex) { 1860 /* undefined image level */ 1861 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions); 1862 return GL_TRUE; 1863 } 1864 1865 if (xoffset < -((GLint)destTex->Border)) { 1866 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)", 1867 dimensions); 1868 return GL_TRUE; 1869 } 1870 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) { 1871 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)", 1872 dimensions); 1873 return GL_TRUE; 1874 } 1875 if (dimensions > 1) { 1876 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destTex->Border; 1877 if (yoffset < -yBorder) { 1878 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)", 1879 dimensions); 1880 return GL_TRUE; 1881 } 1882 if (yoffset + height > (GLint) destTex->Height + yBorder) { 1883 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)", 1884 dimensions); 1885 return GL_TRUE; 1886 } 1887 } 1888 if (dimensions > 2) { 1889 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destTex->Border; 1890 if (zoffset < -zBorder) { 1891 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)"); 1892 return GL_TRUE; 1893 } 1894 if (zoffset + depth > (GLint) destTex->Depth + zBorder) { 1895 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)"); 1896 return GL_TRUE; 1897 } 1898 } 1899 1900 if (_mesa_is_format_compressed(destTex->TexFormat)) { 1901 GLuint bw, bh; 1902 1903 if (compressedteximage_only_format(ctx, destTex->InternalFormat)) { 1904 _mesa_error(ctx, GL_INVALID_OPERATION, 1905 "glTexSubImage%dD(no compression for format)", dimensions); 1906 return GL_TRUE; 1907 } 1908 1909 /* do tests which depend on compression block size */ 1910 _mesa_get_format_block_size(destTex->TexFormat, &bw, &bh); 1911 1912 /* offset must be multiple of block size */ 1913 if ((xoffset % bw != 0) || (yoffset % bh != 0)) { 1914 _mesa_error(ctx, GL_INVALID_OPERATION, 1915 "glTexSubImage%dD(xoffset = %d, yoffset = %d)", 1916 dimensions, xoffset, yoffset); 1917 return GL_TRUE; 1918 } 1919 /* size must be multiple of bw by bh or equal to whole texture size */ 1920 if ((width % bw != 0) && (GLuint) width != destTex->Width) { 1921 _mesa_error(ctx, GL_INVALID_OPERATION, 1922 "glTexSubImage%dD(width = %d)", dimensions, width); 1923 return GL_TRUE; 1924 } 1925 if ((height % bh != 0) && (GLuint) height != destTex->Height) { 1926 _mesa_error(ctx, GL_INVALID_OPERATION, 1927 "glTexSubImage%dD(height = %d)", dimensions, height); 1928 return GL_TRUE; 1929 } 1930 } 1931 1932 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) { 1933 /* both source and dest must be integer-valued, or neither */ 1934 if (_mesa_is_format_integer_color(destTex->TexFormat) != 1935 _mesa_is_enum_format_integer(format)) { 1936 _mesa_error(ctx, GL_INVALID_OPERATION, 1937 "glTexSubImage%dD(integer/non-integer format mismatch)", 1938 dimensions); 1939 return GL_TRUE; 1940 } 1941 } 1942 1943 return GL_FALSE; 1944} 1945 1946 1947/** 1948 * Test glCopyTexImage[12]D() parameters for errors. 1949 * 1950 * \param ctx GL context. 1951 * \param dimensions texture image dimensions (must be 1, 2 or 3). 1952 * \param target texture target given by the user. 1953 * \param level image level given by the user. 1954 * \param internalFormat internal format given by the user. 1955 * \param width image width given by the user. 1956 * \param height image height given by the user. 1957 * \param border texture border. 1958 * 1959 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 1960 * 1961 * Verifies each of the parameters against the constants specified in 1962 * __struct gl_contextRec::Const and the supported extensions, and according 1963 * to the OpenGL specification. 1964 */ 1965static GLboolean 1966copytexture_error_check( struct gl_context *ctx, GLuint dimensions, 1967 GLenum target, GLint level, GLint internalFormat, 1968 GLint width, GLint height, GLint border ) 1969{ 1970 const GLenum proxyTarget = get_proxy_target(target); 1971 const GLenum type = GL_FLOAT; 1972 GLboolean sizeOK; 1973 GLint baseFormat; 1974 1975 /* check target */ 1976 if (!legal_texsubimage_target(ctx, dimensions, target)) { 1977 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)", 1978 dimensions, _mesa_lookup_enum_by_nr(target)); 1979 return GL_TRUE; 1980 } 1981 1982 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */ 1983 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 1984 _mesa_error(ctx, GL_INVALID_VALUE, 1985 "glCopyTexImage%dD(level=%d)", dimensions, level); 1986 return GL_TRUE; 1987 } 1988 1989 /* Check that the source buffer is complete */ 1990 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 1991 if (ctx->ReadBuffer->_Status == 0) { 1992 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 1993 } 1994 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 1995 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 1996 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 1997 return GL_TRUE; 1998 } 1999 2000 if (ctx->ReadBuffer->Visual.samples > 0) { 2001 _mesa_error(ctx, GL_INVALID_OPERATION, 2002 "glCopyTexImage%dD(multisample FBO)", 2003 dimensions); 2004 return GL_TRUE; 2005 } 2006 } 2007 2008 /* Check border */ 2009 if (border < 0 || border > 1 || 2010 ((target == GL_TEXTURE_RECTANGLE_NV || 2011 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) { 2012 return GL_TRUE; 2013 } 2014 2015 baseFormat = _mesa_base_tex_format(ctx, internalFormat); 2016 if (baseFormat < 0) { 2017 _mesa_error(ctx, GL_INVALID_VALUE, 2018 "glCopyTexImage%dD(internalFormat)", dimensions); 2019 return GL_TRUE; 2020 } 2021 2022 if (!_mesa_source_buffer_exists(ctx, baseFormat)) { 2023 _mesa_error(ctx, GL_INVALID_OPERATION, 2024 "glCopyTexImage%dD(missing readbuffer)", dimensions); 2025 return GL_TRUE; 2026 } 2027 2028 /* From the EXT_texture_integer spec: 2029 * 2030 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2031 * if the texture internalformat is an integer format and the read color 2032 * buffer is not an integer format, or if the internalformat is not an 2033 * integer format and the read color buffer is an integer format." 2034 */ 2035 if (_mesa_is_color_format(internalFormat)) { 2036 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2037 2038 if (_mesa_is_enum_format_integer(rb->InternalFormat) != 2039 _mesa_is_enum_format_integer(internalFormat)) { 2040 _mesa_error(ctx, GL_INVALID_OPERATION, 2041 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2042 return GL_TRUE; 2043 } 2044 } 2045 2046 /* Do size, level checking */ 2047 sizeOK = (proxyTarget == GL_PROXY_TEXTURE_CUBE_MAP_ARB) 2048 ? (width == height) : 1; 2049 2050 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 2051 internalFormat, baseFormat, 2052 type, width, height, 2053 1, border); 2054 2055 if (!sizeOK) { 2056 if (dimensions == 1) { 2057 _mesa_error(ctx, GL_INVALID_VALUE, 2058 "glCopyTexImage1D(width=%d)", width); 2059 } 2060 else { 2061 ASSERT(dimensions == 2); 2062 _mesa_error(ctx, GL_INVALID_VALUE, 2063 "glCopyTexImage2D(width=%d, height=%d)", width, height); 2064 } 2065 return GL_TRUE; 2066 } 2067 2068 if (_mesa_is_compressed_format(ctx, internalFormat)) { 2069 if (!target_can_be_compressed(ctx, target, internalFormat)) { 2070 _mesa_error(ctx, GL_INVALID_ENUM, 2071 "glCopyTexImage%dD(target)", dimensions); 2072 return GL_TRUE; 2073 } 2074 if (compressedteximage_only_format(ctx, internalFormat)) { 2075 _mesa_error(ctx, GL_INVALID_OPERATION, 2076 "glCopyTexImage%dD(no compression for format)", dimensions); 2077 return GL_TRUE; 2078 } 2079 if (border != 0) { 2080 _mesa_error(ctx, GL_INVALID_OPERATION, 2081 "glCopyTexImage%dD(border!=0)", dimensions); 2082 return GL_TRUE; 2083 } 2084 } 2085 2086 if (!mutable_tex_object(ctx, target)) { 2087 _mesa_error(ctx, GL_INVALID_OPERATION, 2088 "glCopyTexImage%dD(immutable texture)", dimensions); 2089 return GL_TRUE; 2090 } 2091 2092 /* if we get here, the parameters are OK */ 2093 return GL_FALSE; 2094} 2095 2096 2097/** 2098 * Test glCopyTexSubImage[12]D() parameters for errors. 2099 * Note that this is the first part of error checking. 2100 * See also copytexsubimage_error_check2() below for the second part. 2101 * 2102 * \param ctx GL context. 2103 * \param dimensions texture image dimensions (must be 1, 2 or 3). 2104 * \param target texture target given by the user. 2105 * \param level image level given by the user. 2106 * 2107 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors. 2108 */ 2109static GLboolean 2110copytexsubimage_error_check1( struct gl_context *ctx, GLuint dimensions, 2111 GLenum target, GLint level) 2112{ 2113 /* Check that the source buffer is complete */ 2114 if (_mesa_is_user_fbo(ctx->ReadBuffer)) { 2115 if (ctx->ReadBuffer->_Status == 0) { 2116 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer); 2117 } 2118 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) { 2119 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT, 2120 "glCopyTexImage%dD(invalid readbuffer)", dimensions); 2121 return GL_TRUE; 2122 } 2123 2124 if (ctx->ReadBuffer->Visual.samples > 0) { 2125 _mesa_error(ctx, GL_INVALID_OPERATION, 2126 "glCopyTexSubImage%dD(multisample FBO)", 2127 dimensions); 2128 return GL_TRUE; 2129 } 2130 } 2131 2132 /* check target (proxies not allowed) */ 2133 if (!legal_texsubimage_target(ctx, dimensions, target)) { 2134 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)", 2135 dimensions, _mesa_lookup_enum_by_nr(target)); 2136 return GL_TRUE; 2137 } 2138 2139 /* Check level */ 2140 if (level < 0 || level >= MAX_TEXTURE_LEVELS) { 2141 _mesa_error(ctx, GL_INVALID_VALUE, 2142 "glCopyTexSubImage%dD(level=%d)", dimensions, level); 2143 return GL_TRUE; 2144 } 2145 2146 return GL_FALSE; 2147} 2148 2149 2150/** 2151 * Second part of error checking for glCopyTexSubImage[12]D(). 2152 * \param xoffset sub-image x offset given by the user. 2153 * \param yoffset sub-image y offset given by the user. 2154 * \param zoffset sub-image z offset given by the user. 2155 * \param width image width given by the user. 2156 * \param height image height given by the user. 2157 */ 2158static GLboolean 2159copytexsubimage_error_check2( struct gl_context *ctx, GLuint dimensions, 2160 GLenum target, GLint level, 2161 GLint xoffset, GLint yoffset, GLint zoffset, 2162 GLsizei width, GLsizei height, 2163 const struct gl_texture_image *teximage ) 2164{ 2165 /* check that dest tex image exists */ 2166 if (!teximage) { 2167 _mesa_error(ctx, GL_INVALID_OPERATION, 2168 "glCopyTexSubImage%dD(undefined texture level: %d)", 2169 dimensions, level); 2170 return GL_TRUE; 2171 } 2172 2173 /* Check size */ 2174 if (width < 0) { 2175 _mesa_error(ctx, GL_INVALID_VALUE, 2176 "glCopyTexSubImage%dD(width=%d)", dimensions, width); 2177 return GL_TRUE; 2178 } 2179 if (dimensions > 1 && height < 0) { 2180 _mesa_error(ctx, GL_INVALID_VALUE, 2181 "glCopyTexSubImage%dD(height=%d)", dimensions, height); 2182 return GL_TRUE; 2183 } 2184 2185 /* check x/y offsets */ 2186 if (xoffset < -((GLint)teximage->Border)) { 2187 _mesa_error(ctx, GL_INVALID_VALUE, 2188 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset); 2189 return GL_TRUE; 2190 } 2191 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) { 2192 _mesa_error(ctx, GL_INVALID_VALUE, 2193 "glCopyTexSubImage%dD(xoffset+width)", dimensions); 2194 return GL_TRUE; 2195 } 2196 if (dimensions > 1) { 2197 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : teximage->Border; 2198 if (yoffset < -yBorder) { 2199 _mesa_error(ctx, GL_INVALID_VALUE, 2200 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset); 2201 return GL_TRUE; 2202 } 2203 /* NOTE: we're adding the border here, not subtracting! */ 2204 if (yoffset + height > (GLint) teximage->Height + yBorder) { 2205 _mesa_error(ctx, GL_INVALID_VALUE, 2206 "glCopyTexSubImage%dD(yoffset+height)", dimensions); 2207 return GL_TRUE; 2208 } 2209 } 2210 2211 /* check z offset */ 2212 if (dimensions > 2) { 2213 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : teximage->Border; 2214 if (zoffset < -zBorder) { 2215 _mesa_error(ctx, GL_INVALID_VALUE, 2216 "glCopyTexSubImage%dD(zoffset)", dimensions); 2217 return GL_TRUE; 2218 } 2219 if (zoffset > (GLint) teximage->Depth + zBorder) { 2220 _mesa_error(ctx, GL_INVALID_VALUE, 2221 "glCopyTexSubImage%dD(zoffset+depth)", dimensions); 2222 return GL_TRUE; 2223 } 2224 } 2225 2226 if (_mesa_is_format_compressed(teximage->TexFormat)) { 2227 if (compressedteximage_only_format(ctx, teximage->InternalFormat)) { 2228 _mesa_error(ctx, GL_INVALID_OPERATION, 2229 "glCopyTexSubImage%dD(no compression for format)", dimensions); 2230 return GL_TRUE; 2231 } 2232 /* offset must be multiple of 4 */ 2233 if ((xoffset & 3) || (yoffset & 3)) { 2234 _mesa_error(ctx, GL_INVALID_VALUE, 2235 "glCopyTexSubImage%dD(xoffset or yoffset)", dimensions); 2236 return GL_TRUE; 2237 } 2238 /* size must be multiple of 4 */ 2239 if ((width & 3) != 0 && (GLuint) width != teximage->Width) { 2240 _mesa_error(ctx, GL_INVALID_VALUE, 2241 "glCopyTexSubImage%dD(width)", dimensions); 2242 return GL_TRUE; 2243 } 2244 if ((height & 3) != 0 && (GLuint) height != teximage->Height) { 2245 _mesa_error(ctx, GL_INVALID_VALUE, 2246 "glCopyTexSubImage%dD(height)", dimensions); 2247 return GL_TRUE; 2248 } 2249 } 2250 2251 if (teximage->InternalFormat == GL_YCBCR_MESA) { 2252 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D"); 2253 return GL_TRUE; 2254 } 2255 2256 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) { 2257 _mesa_error(ctx, GL_INVALID_OPERATION, 2258 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)", 2259 dimensions, teximage->_BaseFormat); 2260 return GL_TRUE; 2261 } 2262 2263 /* From the EXT_texture_integer spec: 2264 * 2265 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage* 2266 * if the texture internalformat is an integer format and the read color 2267 * buffer is not an integer format, or if the internalformat is not an 2268 * integer format and the read color buffer is an integer format." 2269 */ 2270 if (_mesa_is_color_format(teximage->InternalFormat)) { 2271 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer; 2272 2273 if (_mesa_is_format_integer_color(rb->Format) != 2274 _mesa_is_format_integer_color(teximage->TexFormat)) { 2275 _mesa_error(ctx, GL_INVALID_OPERATION, 2276 "glCopyTexImage%dD(integer vs non-integer)", dimensions); 2277 return GL_TRUE; 2278 } 2279 } 2280 2281 /* if we get here, the parameters are OK */ 2282 return GL_FALSE; 2283} 2284 2285 2286/** Callback info for walking over FBO hash table */ 2287struct cb_info 2288{ 2289 struct gl_context *ctx; 2290 struct gl_texture_object *texObj; 2291 GLuint level, face; 2292}; 2293 2294 2295/** 2296 * Check render to texture callback. Called from _mesa_HashWalk(). 2297 */ 2298static void 2299check_rtt_cb(GLuint key, void *data, void *userData) 2300{ 2301 struct gl_framebuffer *fb = (struct gl_framebuffer *) data; 2302 const struct cb_info *info = (struct cb_info *) userData; 2303 struct gl_context *ctx = info->ctx; 2304 const struct gl_texture_object *texObj = info->texObj; 2305 const GLuint level = info->level, face = info->face; 2306 2307 /* If this is a user-created FBO */ 2308 if (_mesa_is_user_fbo(fb)) { 2309 GLuint i; 2310 /* check if any of the FBO's attachments point to 'texObj' */ 2311 for (i = 0; i < BUFFER_COUNT; i++) { 2312 struct gl_renderbuffer_attachment *att = fb->Attachment + i; 2313 if (att->Type == GL_TEXTURE && 2314 att->Texture == texObj && 2315 att->TextureLevel == level && 2316 att->CubeMapFace == face) { 2317 ASSERT(_mesa_get_attachment_teximage(att)); 2318 /* Tell driver about the new renderbuffer texture */ 2319 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att); 2320 /* Mark fb status as indeterminate to force re-validation */ 2321 fb->_Status = 0; 2322 } 2323 } 2324 } 2325} 2326 2327 2328/** 2329 * When a texture image is specified we have to check if it's bound to 2330 * any framebuffer objects (render to texture) in order to detect changes 2331 * in size or format since that effects FBO completeness. 2332 * Any FBOs rendering into the texture must be re-validated. 2333 */ 2334void 2335_mesa_update_fbo_texture(struct gl_context *ctx, 2336 struct gl_texture_object *texObj, 2337 GLuint face, GLuint level) 2338{ 2339 /* Only check this texture if it's been marked as RenderToTexture */ 2340 if (texObj->_RenderToTexture) { 2341 struct cb_info info; 2342 info.ctx = ctx; 2343 info.texObj = texObj; 2344 info.level = level; 2345 info.face = face; 2346 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info); 2347 } 2348} 2349 2350 2351/** 2352 * If the texture object's GenerateMipmap flag is set and we've 2353 * changed the texture base level image, regenerate the rest of the 2354 * mipmap levels now. 2355 */ 2356static inline void 2357check_gen_mipmap(struct gl_context *ctx, GLenum target, 2358 struct gl_texture_object *texObj, GLint level) 2359{ 2360 ASSERT(target != GL_TEXTURE_CUBE_MAP); 2361 if (texObj->GenerateMipmap && 2362 level == texObj->BaseLevel && 2363 level < texObj->MaxLevel) { 2364 ASSERT(ctx->Driver.GenerateMipmap); 2365 ctx->Driver.GenerateMipmap(ctx, target, texObj); 2366 } 2367} 2368 2369 2370/** Debug helper: override the user-requested internal format */ 2371static GLenum 2372override_internal_format(GLenum internalFormat, GLint width, GLint height) 2373{ 2374#if 0 2375 if (internalFormat == GL_RGBA16F_ARB || 2376 internalFormat == GL_RGBA32F_ARB) { 2377 printf("Convert rgba float tex to int %d x %d\n", width, height); 2378 return GL_RGBA; 2379 } 2380 else if (internalFormat == GL_RGB16F_ARB || 2381 internalFormat == GL_RGB32F_ARB) { 2382 printf("Convert rgb float tex to int %d x %d\n", width, height); 2383 return GL_RGB; 2384 } 2385 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB || 2386 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) { 2387 printf("Convert luminance float tex to int %d x %d\n", width, height); 2388 return GL_LUMINANCE_ALPHA; 2389 } 2390 else if (internalFormat == GL_LUMINANCE16F_ARB || 2391 internalFormat == GL_LUMINANCE32F_ARB) { 2392 printf("Convert luminance float tex to int %d x %d\n", width, height); 2393 return GL_LUMINANCE; 2394 } 2395 else if (internalFormat == GL_ALPHA16F_ARB || 2396 internalFormat == GL_ALPHA32F_ARB) { 2397 printf("Convert luminance float tex to int %d x %d\n", width, height); 2398 return GL_ALPHA; 2399 } 2400 /* 2401 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) { 2402 internalFormat = GL_RGBA; 2403 } 2404 */ 2405 else { 2406 return internalFormat; 2407 } 2408#else 2409 return internalFormat; 2410#endif 2411} 2412 2413 2414/** 2415 * Choose the actual hardware format for a texture image. 2416 * Try to use the same format as the previous image level when possible. 2417 * Otherwise, ask the driver for the best format. 2418 * It's important to try to choose a consistant format for all levels 2419 * for efficient texture memory layout/allocation. In particular, this 2420 * comes up during automatic mipmap generation. 2421 */ 2422gl_format 2423_mesa_choose_texture_format(struct gl_context *ctx, 2424 struct gl_texture_object *texObj, 2425 GLenum target, GLint level, 2426 GLenum internalFormat, GLenum format, GLenum type) 2427{ 2428 gl_format f; 2429 2430 /* see if we've already chosen a format for the previous level */ 2431 if (level > 0) { 2432 struct gl_texture_image *prevImage = 2433 _mesa_select_tex_image(ctx, texObj, target, level - 1); 2434 /* See if the prev level is defined and has an internal format which 2435 * matches the new internal format. 2436 */ 2437 if (prevImage && 2438 prevImage->Width > 0 && 2439 prevImage->InternalFormat == internalFormat) { 2440 /* use the same format */ 2441 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE); 2442 return prevImage->TexFormat; 2443 } 2444 } 2445 2446 /* choose format from scratch */ 2447 f = ctx->Driver.ChooseTextureFormat(ctx, internalFormat, format, type); 2448 ASSERT(f != MESA_FORMAT_NONE); 2449 return f; 2450} 2451 2452/** 2453 * Adjust pixel unpack params and image dimensions to strip off the 2454 * one-pixel texture border. 2455 * 2456 * Gallium and intel don't support texture borders. They've seldem been used 2457 * and seldom been implemented correctly anyway. 2458 * 2459 * \param unpackNew returns the new pixel unpack parameters 2460 */ 2461static void 2462strip_texture_border(GLenum target, 2463 GLint *width, GLint *height, GLint *depth, 2464 const struct gl_pixelstore_attrib *unpack, 2465 struct gl_pixelstore_attrib *unpackNew) 2466{ 2467 assert(width); 2468 assert(height); 2469 assert(depth); 2470 2471 *unpackNew = *unpack; 2472 2473 if (unpackNew->RowLength == 0) 2474 unpackNew->RowLength = *width; 2475 2476 if (unpackNew->ImageHeight == 0) 2477 unpackNew->ImageHeight = *height; 2478 2479 assert(*width >= 3); 2480 unpackNew->SkipPixels++; /* skip the border */ 2481 *width = *width - 2; /* reduce the width by two border pixels */ 2482 2483 /* The min height of a texture with a border is 3 */ 2484 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) { 2485 unpackNew->SkipRows++; /* skip the border */ 2486 *height = *height - 2; /* reduce the height by two border pixels */ 2487 } 2488 2489 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY) { 2490 unpackNew->SkipImages++; /* skip the border */ 2491 *depth = *depth - 2; /* reduce the depth by two border pixels */ 2492 } 2493} 2494 2495/** 2496 * Common code to implement all the glTexImage1D/2D/3D functions. 2497 */ 2498static void 2499teximage(struct gl_context *ctx, GLuint dims, 2500 GLenum target, GLint level, GLint internalFormat, 2501 GLsizei width, GLsizei height, GLsizei depth, 2502 GLint border, GLenum format, GLenum type, 2503 const GLvoid *pixels) 2504{ 2505 GLboolean error; 2506 struct gl_pixelstore_attrib unpack_no_border; 2507 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack; 2508 2509 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2510 2511 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2512 _mesa_debug(ctx, "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n", 2513 dims, 2514 _mesa_lookup_enum_by_nr(target), level, 2515 _mesa_lookup_enum_by_nr(internalFormat), 2516 width, height, depth, border, 2517 _mesa_lookup_enum_by_nr(format), 2518 _mesa_lookup_enum_by_nr(type), pixels); 2519 2520 internalFormat = override_internal_format(internalFormat, width, height); 2521 2522 /* target error checking */ 2523 if (!legal_teximage_target(ctx, dims, target)) { 2524 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage%uD(target=%s)", 2525 dims, _mesa_lookup_enum_by_nr(target)); 2526 return; 2527 } 2528 2529 /* general error checking */ 2530 error = texture_error_check(ctx, dims, target, level, internalFormat, 2531 format, type, width, height, depth, border); 2532 2533 if (_mesa_is_proxy_texture(target)) { 2534 /* Proxy texture: just clear or set state depending on error checking */ 2535 struct gl_texture_image *texImage = 2536 _mesa_get_proxy_tex_image(ctx, target, level); 2537 2538 if (error) { 2539 /* when error, clear all proxy texture image parameters */ 2540 if (texImage) 2541 clear_teximage_fields(texImage); 2542 } 2543 else { 2544 /* no error, set the tex image parameters */ 2545 struct gl_texture_object *texObj = 2546 _mesa_get_current_tex_object(ctx, target); 2547 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2548 target, level, 2549 internalFormat, 2550 format, type); 2551 2552 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2553 _mesa_init_teximage_fields(ctx, texImage, width, height, 2554 depth, border, internalFormat, 2555 texFormat); 2556 } 2557 else if (texImage) { 2558 clear_teximage_fields(texImage); 2559 } 2560 } 2561 } 2562 else { 2563 /* non-proxy target */ 2564 const GLuint face = _mesa_tex_target_to_face(target); 2565 struct gl_texture_object *texObj; 2566 struct gl_texture_image *texImage; 2567 2568 if (error) { 2569 return; /* error was recorded */ 2570 } 2571 2572 /* Allow a hardware driver to just strip out the border, to provide 2573 * reliable but slightly incorrect hardware rendering instead of 2574 * rarely-tested software fallback rendering. 2575 */ 2576 if (border && ctx->Const.StripTextureBorder) { 2577 strip_texture_border(target, &width, &height, &depth, unpack, 2578 &unpack_no_border); 2579 border = 0; 2580 unpack = &unpack_no_border; 2581 } 2582 2583 if (ctx->NewState & _NEW_PIXEL) 2584 _mesa_update_state(ctx); 2585 2586 texObj = _mesa_get_current_tex_object(ctx, target); 2587 2588 _mesa_lock_texture(ctx, texObj); 2589 { 2590 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2591 2592 if (!texImage) { 2593 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2594 } 2595 else { 2596 gl_format texFormat; 2597 2598 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2599 2600 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 2601 internalFormat, format, 2602 type); 2603 2604 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 2605 _mesa_init_teximage_fields(ctx, texImage, 2606 width, height, depth, 2607 border, internalFormat, texFormat); 2608 2609 /* Give the texture to the driver. <pixels> may be null. */ 2610 ctx->Driver.TexImage(ctx, dims, texImage, format, 2611 type, pixels, unpack); 2612 2613 check_gen_mipmap(ctx, target, texObj, level); 2614 2615 _mesa_update_fbo_texture(ctx, texObj, face, level); 2616 2617 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2618 } 2619 else { 2620 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage%uD", dims); 2621 } 2622 } 2623 } 2624 _mesa_unlock_texture(ctx, texObj); 2625 } 2626} 2627 2628 2629/* 2630 * Called from the API. Note that width includes the border. 2631 */ 2632void GLAPIENTRY 2633_mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat, 2634 GLsizei width, GLint border, GLenum format, 2635 GLenum type, const GLvoid *pixels ) 2636{ 2637 GET_CURRENT_CONTEXT(ctx); 2638 teximage(ctx, 1, target, level, internalFormat, width, 1, 1, 2639 border, format, type, pixels); 2640} 2641 2642 2643void GLAPIENTRY 2644_mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat, 2645 GLsizei width, GLsizei height, GLint border, 2646 GLenum format, GLenum type, 2647 const GLvoid *pixels ) 2648{ 2649 GET_CURRENT_CONTEXT(ctx); 2650 teximage(ctx, 2, target, level, internalFormat, width, height, 1, 2651 border, format, type, pixels); 2652} 2653 2654 2655/* 2656 * Called by the API or display list executor. 2657 * Note that width and height include the border. 2658 */ 2659void GLAPIENTRY 2660_mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat, 2661 GLsizei width, GLsizei height, GLsizei depth, 2662 GLint border, GLenum format, GLenum type, 2663 const GLvoid *pixels ) 2664{ 2665 GET_CURRENT_CONTEXT(ctx); 2666 teximage(ctx, 3, target, level, internalFormat, width, height, depth, 2667 border, format, type, pixels); 2668} 2669 2670 2671void GLAPIENTRY 2672_mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat, 2673 GLsizei width, GLsizei height, GLsizei depth, 2674 GLint border, GLenum format, GLenum type, 2675 const GLvoid *pixels ) 2676{ 2677 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height, 2678 depth, border, format, type, pixels); 2679} 2680 2681 2682#if FEATURE_OES_EGL_image 2683void GLAPIENTRY 2684_mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image) 2685{ 2686 struct gl_texture_object *texObj; 2687 struct gl_texture_image *texImage; 2688 bool valid_target; 2689 GET_CURRENT_CONTEXT(ctx); 2690 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2691 2692 switch (target) { 2693 case GL_TEXTURE_2D: 2694 valid_target = ctx->Extensions.OES_EGL_image; 2695 break; 2696 case GL_TEXTURE_EXTERNAL_OES: 2697 valid_target = ctx->Extensions.OES_EGL_image_external; 2698 break; 2699 default: 2700 valid_target = false; 2701 break; 2702 } 2703 2704 if (!valid_target) { 2705 _mesa_error(ctx, GL_INVALID_ENUM, 2706 "glEGLImageTargetTexture2D(target=%d)", target); 2707 return; 2708 } 2709 2710 if (ctx->NewState & _NEW_PIXEL) 2711 _mesa_update_state(ctx); 2712 2713 texObj = _mesa_get_current_tex_object(ctx, target); 2714 _mesa_lock_texture(ctx, texObj); 2715 2716 if (texObj->Immutable) { 2717 _mesa_error(ctx, GL_INVALID_OPERATION, 2718 "glEGLImageTargetTexture2D(texture is immutable)"); 2719 _mesa_unlock_texture(ctx, texObj); 2720 return; 2721 } 2722 2723 texImage = _mesa_get_tex_image(ctx, texObj, target, 0); 2724 if (!texImage) { 2725 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D"); 2726 } else { 2727 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2728 2729 ctx->Driver.EGLImageTargetTexture2D(ctx, target, 2730 texObj, texImage, image); 2731 2732 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2733 } 2734 _mesa_unlock_texture(ctx, texObj); 2735 2736} 2737#endif 2738 2739 2740 2741/** 2742 * Implement all the glTexSubImage1/2/3D() functions. 2743 */ 2744static void 2745texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 2746 GLint xoffset, GLint yoffset, GLint zoffset, 2747 GLsizei width, GLsizei height, GLsizei depth, 2748 GLenum format, GLenum type, const GLvoid *pixels ) 2749{ 2750 struct gl_texture_object *texObj; 2751 struct gl_texture_image *texImage; 2752 2753 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2754 2755 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2756 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n", 2757 dims, 2758 _mesa_lookup_enum_by_nr(target), level, 2759 xoffset, yoffset, zoffset, width, height, depth, 2760 _mesa_lookup_enum_by_nr(format), 2761 _mesa_lookup_enum_by_nr(type), pixels); 2762 2763 /* check target (proxies not allowed) */ 2764 if (!legal_texsubimage_target(ctx, dims, target)) { 2765 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)", 2766 dims, _mesa_lookup_enum_by_nr(target)); 2767 return; 2768 } 2769 2770 if (ctx->NewState & _NEW_PIXEL) 2771 _mesa_update_state(ctx); 2772 2773 if (subtexture_error_check(ctx, dims, target, level, xoffset, yoffset, zoffset, 2774 width, height, depth, format, type)) { 2775 return; /* error was detected */ 2776 } 2777 2778 texObj = _mesa_get_current_tex_object(ctx, target); 2779 2780 _mesa_lock_texture(ctx, texObj); 2781 { 2782 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 2783 2784 if (subtexture_error_check2(ctx, dims, target, level, 2785 xoffset, yoffset, zoffset, 2786 width, height, depth, 2787 format, type, texImage)) { 2788 /* error was recorded */ 2789 } 2790 else if (width > 0 && height > 0 && depth > 0) { 2791 /* If we have a border, offset=-1 is legal. Bias by border width. */ 2792 switch (dims) { 2793 case 3: 2794 if (target != GL_TEXTURE_2D_ARRAY) 2795 zoffset += texImage->Border; 2796 /* fall-through */ 2797 case 2: 2798 if (target != GL_TEXTURE_1D_ARRAY) 2799 yoffset += texImage->Border; 2800 /* fall-through */ 2801 case 1: 2802 xoffset += texImage->Border; 2803 } 2804 2805 ctx->Driver.TexSubImage(ctx, dims, texImage, 2806 xoffset, yoffset, zoffset, 2807 width, height, depth, 2808 format, type, pixels, &ctx->Unpack); 2809 2810 check_gen_mipmap(ctx, target, texObj, level); 2811 2812 ctx->NewState |= _NEW_TEXTURE; 2813 } 2814 } 2815 _mesa_unlock_texture(ctx, texObj); 2816} 2817 2818 2819void GLAPIENTRY 2820_mesa_TexSubImage1D( GLenum target, GLint level, 2821 GLint xoffset, GLsizei width, 2822 GLenum format, GLenum type, 2823 const GLvoid *pixels ) 2824{ 2825 GET_CURRENT_CONTEXT(ctx); 2826 texsubimage(ctx, 1, target, level, 2827 xoffset, 0, 0, 2828 width, 1, 1, 2829 format, type, pixels); 2830} 2831 2832 2833void GLAPIENTRY 2834_mesa_TexSubImage2D( GLenum target, GLint level, 2835 GLint xoffset, GLint yoffset, 2836 GLsizei width, GLsizei height, 2837 GLenum format, GLenum type, 2838 const GLvoid *pixels ) 2839{ 2840 GET_CURRENT_CONTEXT(ctx); 2841 texsubimage(ctx, 2, target, level, 2842 xoffset, yoffset, 0, 2843 width, height, 1, 2844 format, type, pixels); 2845} 2846 2847 2848 2849void GLAPIENTRY 2850_mesa_TexSubImage3D( GLenum target, GLint level, 2851 GLint xoffset, GLint yoffset, GLint zoffset, 2852 GLsizei width, GLsizei height, GLsizei depth, 2853 GLenum format, GLenum type, 2854 const GLvoid *pixels ) 2855{ 2856 GET_CURRENT_CONTEXT(ctx); 2857 texsubimage(ctx, 3, target, level, 2858 xoffset, yoffset, zoffset, 2859 width, height, depth, 2860 format, type, pixels); 2861} 2862 2863 2864 2865/** 2866 * For glCopyTexSubImage, return the source renderbuffer to copy texel data 2867 * from. This depends on whether the texture contains color or depth values. 2868 */ 2869static struct gl_renderbuffer * 2870get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat) 2871{ 2872 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) { 2873 /* reading from depth/stencil buffer */ 2874 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer; 2875 } 2876 else { 2877 /* copying from color buffer */ 2878 return ctx->ReadBuffer->_ColorReadBuffer; 2879 } 2880} 2881 2882 2883 2884/** 2885 * Implement the glCopyTexImage1/2D() functions. 2886 */ 2887static void 2888copyteximage(struct gl_context *ctx, GLuint dims, 2889 GLenum target, GLint level, GLenum internalFormat, 2890 GLint x, GLint y, GLsizei width, GLsizei height, GLint border ) 2891{ 2892 struct gl_texture_object *texObj; 2893 struct gl_texture_image *texImage; 2894 const GLuint face = _mesa_tex_target_to_face(target); 2895 2896 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 2897 2898 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 2899 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n", 2900 dims, 2901 _mesa_lookup_enum_by_nr(target), level, 2902 _mesa_lookup_enum_by_nr(internalFormat), 2903 x, y, width, height, border); 2904 2905 if (ctx->NewState & NEW_COPY_TEX_STATE) 2906 _mesa_update_state(ctx); 2907 2908 if (copytexture_error_check(ctx, dims, target, level, internalFormat, 2909 width, height, border)) 2910 return; 2911 2912 texObj = _mesa_get_current_tex_object(ctx, target); 2913 2914 if (border && ctx->Const.StripTextureBorder) { 2915 x += border; 2916 width -= border * 2; 2917 if (dims == 2) { 2918 y += border; 2919 height -= border * 2; 2920 } 2921 border = 0; 2922 } 2923 2924 _mesa_lock_texture(ctx, texObj); 2925 { 2926 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 2927 2928 if (!texImage) { 2929 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2930 } 2931 else { 2932 /* choose actual hw format */ 2933 gl_format texFormat = _mesa_choose_texture_format(ctx, texObj, 2934 target, level, 2935 internalFormat, 2936 GL_NONE, GL_NONE); 2937 2938 if (legal_texture_size(ctx, texFormat, width, height, 1)) { 2939 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0; 2940 2941 /* Free old texture image */ 2942 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 2943 2944 _mesa_init_teximage_fields(ctx, texImage, width, height, 1, 2945 border, internalFormat, texFormat); 2946 2947 /* Allocate texture memory (no pixel data yet) */ 2948 ctx->Driver.TexImage(ctx, dims, texImage, 2949 GL_NONE, GL_NONE, 2950 NULL, &ctx->Unpack); 2951 2952 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY, 2953 &width, &height)) { 2954 struct gl_renderbuffer *srcRb = 2955 get_copy_tex_image_source(ctx, texImage->TexFormat); 2956 2957 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ, 2958 srcRb, srcX, srcY, width, height); 2959 } 2960 2961 check_gen_mipmap(ctx, target, texObj, level); 2962 2963 _mesa_update_fbo_texture(ctx, texObj, face, level); 2964 2965 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 2966 } 2967 else { 2968 /* probably too large of image */ 2969 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims); 2970 } 2971 } 2972 } 2973 _mesa_unlock_texture(ctx, texObj); 2974} 2975 2976 2977 2978void GLAPIENTRY 2979_mesa_CopyTexImage1D( GLenum target, GLint level, 2980 GLenum internalFormat, 2981 GLint x, GLint y, 2982 GLsizei width, GLint border ) 2983{ 2984 GET_CURRENT_CONTEXT(ctx); 2985 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border); 2986} 2987 2988 2989 2990void GLAPIENTRY 2991_mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat, 2992 GLint x, GLint y, GLsizei width, GLsizei height, 2993 GLint border ) 2994{ 2995 GET_CURRENT_CONTEXT(ctx); 2996 copyteximage(ctx, 2, target, level, internalFormat, 2997 x, y, width, height, border); 2998} 2999 3000 3001 3002/** 3003 * Implementation for glCopyTexSubImage1/2/3D() functions. 3004 */ 3005static void 3006copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level, 3007 GLint xoffset, GLint yoffset, GLint zoffset, 3008 GLint x, GLint y, GLsizei width, GLsizei height) 3009{ 3010 struct gl_texture_object *texObj; 3011 struct gl_texture_image *texImage; 3012 3013 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3014 3015 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3016 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n", 3017 dims, 3018 _mesa_lookup_enum_by_nr(target), 3019 level, xoffset, yoffset, zoffset, x, y, width, height); 3020 3021 if (ctx->NewState & NEW_COPY_TEX_STATE) 3022 _mesa_update_state(ctx); 3023 3024 if (copytexsubimage_error_check1(ctx, dims, target, level)) 3025 return; 3026 3027 texObj = _mesa_get_current_tex_object(ctx, target); 3028 3029 _mesa_lock_texture(ctx, texObj); 3030 { 3031 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3032 3033 if (copytexsubimage_error_check2(ctx, dims, target, level, xoffset, yoffset, 3034 zoffset, width, height, texImage)) { 3035 /* error was recored */ 3036 } 3037 else { 3038 /* If we have a border, offset=-1 is legal. Bias by border width. */ 3039 switch (dims) { 3040 case 3: 3041 if (target != GL_TEXTURE_2D_ARRAY) 3042 zoffset += texImage->Border; 3043 /* fall-through */ 3044 case 2: 3045 if (target != GL_TEXTURE_1D_ARRAY) 3046 yoffset += texImage->Border; 3047 /* fall-through */ 3048 case 1: 3049 xoffset += texImage->Border; 3050 } 3051 3052 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y, 3053 &width, &height)) { 3054 struct gl_renderbuffer *srcRb = 3055 get_copy_tex_image_source(ctx, texImage->TexFormat); 3056 3057 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, 3058 xoffset, yoffset, zoffset, 3059 srcRb, x, y, width, height); 3060 3061 check_gen_mipmap(ctx, target, texObj, level); 3062 3063 ctx->NewState |= _NEW_TEXTURE; 3064 } 3065 } 3066 } 3067 _mesa_unlock_texture(ctx, texObj); 3068} 3069 3070 3071void GLAPIENTRY 3072_mesa_CopyTexSubImage1D( GLenum target, GLint level, 3073 GLint xoffset, GLint x, GLint y, GLsizei width ) 3074{ 3075 GET_CURRENT_CONTEXT(ctx); 3076 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1); 3077} 3078 3079 3080 3081void GLAPIENTRY 3082_mesa_CopyTexSubImage2D( GLenum target, GLint level, 3083 GLint xoffset, GLint yoffset, 3084 GLint x, GLint y, GLsizei width, GLsizei height ) 3085{ 3086 GET_CURRENT_CONTEXT(ctx); 3087 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y, 3088 width, height); 3089} 3090 3091 3092 3093void GLAPIENTRY 3094_mesa_CopyTexSubImage3D( GLenum target, GLint level, 3095 GLint xoffset, GLint yoffset, GLint zoffset, 3096 GLint x, GLint y, GLsizei width, GLsizei height ) 3097{ 3098 GET_CURRENT_CONTEXT(ctx); 3099 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset, 3100 x, y, width, height); 3101} 3102 3103 3104 3105 3106/**********************************************************************/ 3107/****** Compressed Textures ******/ 3108/**********************************************************************/ 3109 3110 3111/** 3112 * Return expected size of a compressed texture. 3113 */ 3114static GLuint 3115compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth, 3116 GLenum glformat) 3117{ 3118 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3119 return _mesa_format_image_size(mesaFormat, width, height, depth); 3120} 3121 3122 3123/* 3124 * Return compressed texture block size, in pixels. 3125 */ 3126static void 3127get_compressed_block_size(GLenum glformat, GLuint *bw, GLuint *bh) 3128{ 3129 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat); 3130 _mesa_get_format_block_size(mesaFormat, bw, bh); 3131} 3132 3133 3134/** 3135 * Error checking for glCompressedTexImage[123]D(). 3136 * \param reason returns reason for error, if any 3137 * \return error code or GL_NO_ERROR. 3138 */ 3139static GLenum 3140compressed_texture_error_check(struct gl_context *ctx, GLint dimensions, 3141 GLenum target, GLint level, 3142 GLenum internalFormat, GLsizei width, 3143 GLsizei height, GLsizei depth, GLint border, 3144 GLsizei imageSize, char **reason) 3145{ 3146 const GLenum proxyTarget = get_proxy_target(target); 3147 const GLint maxLevels = _mesa_max_texture_levels(ctx, target); 3148 GLint expectedSize; 3149 GLenum choose_format; 3150 GLenum choose_type; 3151 GLenum proxy_format; 3152 3153 *reason = ""; /* no error */ 3154 3155 if (!target_can_be_compressed(ctx, target, internalFormat)) { 3156 *reason = "target"; 3157 return GL_INVALID_ENUM; 3158 } 3159 3160 /* This will detect any invalid internalFormat value */ 3161 if (!_mesa_is_compressed_format(ctx, internalFormat)) { 3162 *reason = "internalFormat"; 3163 return GL_INVALID_ENUM; 3164 } 3165 3166 switch (internalFormat) { 3167#if FEATURE_ES 3168 case GL_PALETTE4_RGB8_OES: 3169 case GL_PALETTE4_RGBA8_OES: 3170 case GL_PALETTE4_R5_G6_B5_OES: 3171 case GL_PALETTE4_RGBA4_OES: 3172 case GL_PALETTE4_RGB5_A1_OES: 3173 case GL_PALETTE8_RGB8_OES: 3174 case GL_PALETTE8_RGBA8_OES: 3175 case GL_PALETTE8_R5_G6_B5_OES: 3176 case GL_PALETTE8_RGBA4_OES: 3177 case GL_PALETTE8_RGB5_A1_OES: 3178 _mesa_cpal_compressed_format_type(internalFormat, &choose_format, 3179 &choose_type); 3180 proxy_format = choose_format; 3181 3182 /* check level */ 3183 if (level > 0 || level < -maxLevels) { 3184 *reason = "level"; 3185 return GL_INVALID_VALUE; 3186 } 3187 3188 if (dimensions != 2) { 3189 *reason = "compressed paletted textures must be 2D"; 3190 return GL_INVALID_OPERATION; 3191 } 3192 3193 /* Figure out the expected texture size (in bytes). This will be 3194 * checked against the actual size later. 3195 */ 3196 expectedSize = _mesa_cpal_compressed_size(level, internalFormat, 3197 width, height); 3198 3199 /* This is for the benefit of the TestProxyTexImage below. It expects 3200 * level to be non-negative. OES_compressed_paletted_texture uses a 3201 * weird mechanism where the level specified to glCompressedTexImage2D 3202 * is -(n-1) number of levels in the texture, and the data specifies the 3203 * complete mipmap stack. This is done to ensure the palette is the 3204 * same for all levels. 3205 */ 3206 level = -level; 3207 break; 3208#endif 3209 3210 default: 3211 choose_format = GL_NONE; 3212 choose_type = GL_NONE; 3213 proxy_format = internalFormat; 3214 3215 /* check level */ 3216 if (level < 0 || level >= maxLevels) { 3217 *reason = "level"; 3218 return GL_INVALID_VALUE; 3219 } 3220 3221 /* Figure out the expected texture size (in bytes). This will be 3222 * checked against the actual size later. 3223 */ 3224 expectedSize = compressed_tex_size(width, height, depth, internalFormat); 3225 break; 3226 } 3227 3228 /* This should really never fail */ 3229 if (_mesa_base_tex_format(ctx, internalFormat) < 0) { 3230 *reason = "internalFormat"; 3231 return GL_INVALID_ENUM; 3232 } 3233 3234 /* No compressed formats support borders at this time */ 3235 if (border != 0) { 3236 *reason = "border != 0"; 3237 return GL_INVALID_VALUE; 3238 } 3239 3240 /* For cube map, width must equal height */ 3241 if (_mesa_is_cube_face(target) && width != height) { 3242 *reason = "width != height"; 3243 return GL_INVALID_VALUE; 3244 } 3245 3246 /* check image size against compression block size */ 3247 { 3248 gl_format texFormat = 3249 ctx->Driver.ChooseTextureFormat(ctx, proxy_format, 3250 choose_format, choose_type); 3251 GLuint bw, bh; 3252 3253 _mesa_get_format_block_size(texFormat, &bw, &bh); 3254 if ((width > bw && width % bw > 0) || 3255 (height > bh && height % bh > 0)) { 3256 /* 3257 * Per GL_ARB_texture_compression: GL_INVALID_OPERATION is 3258 * generated [...] if any parameter combinations are not 3259 * supported by the specific compressed internal format. 3260 */ 3261 *reason = "invalid width or height for compression format"; 3262 return GL_INVALID_OPERATION; 3263 } 3264 } 3265 3266 /* check image sizes */ 3267 if (!ctx->Driver.TestProxyTexImage(ctx, proxyTarget, level, 3268 proxy_format, choose_format, 3269 choose_type, 3270 width, height, depth, border)) { 3271 /* See error comment above */ 3272 *reason = "invalid width, height or format"; 3273 return GL_INVALID_OPERATION; 3274 } 3275 3276 /* check image size in bytes */ 3277 if (expectedSize != imageSize) { 3278 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...] 3279 * if <imageSize> is not consistent with the format, dimensions, and 3280 * contents of the specified image. 3281 */ 3282 *reason = "imageSize inconsistant with width/height/format"; 3283 return GL_INVALID_VALUE; 3284 } 3285 3286 if (!mutable_tex_object(ctx, target)) { 3287 *reason = "immutable texture"; 3288 return GL_INVALID_OPERATION; 3289 } 3290 3291 return GL_NO_ERROR; 3292} 3293 3294 3295/** 3296 * Error checking for glCompressedTexSubImage[123]D(). 3297 * \warning There are some bad assumptions here about the size of compressed 3298 * texture tiles (multiple of 4) used to test the validity of the 3299 * offset and size parameters. 3300 * \return error code or GL_NO_ERROR. 3301 */ 3302static GLenum 3303compressed_subtexture_error_check(struct gl_context *ctx, GLint dimensions, 3304 GLenum target, GLint level, 3305 GLint xoffset, GLint yoffset, GLint zoffset, 3306 GLsizei width, GLsizei height, GLsizei depth, 3307 GLenum format, GLsizei imageSize) 3308{ 3309 GLint expectedSize, maxLevels = 0, maxTextureSize; 3310 GLuint bw, bh; 3311 (void) zoffset; 3312 3313 if (dimensions == 1) { 3314 /* 1D compressed textures not allowed */ 3315 return GL_INVALID_ENUM; 3316 } 3317 else if (dimensions == 2) { 3318 if (target == GL_PROXY_TEXTURE_2D) { 3319 maxLevels = ctx->Const.MaxTextureLevels; 3320 } 3321 else if (target == GL_TEXTURE_2D) { 3322 maxLevels = ctx->Const.MaxTextureLevels; 3323 } 3324 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) { 3325 if (!ctx->Extensions.ARB_texture_cube_map) 3326 return GL_INVALID_ENUM; /*target*/ 3327 maxLevels = ctx->Const.MaxCubeTextureLevels; 3328 } 3329 else if (_mesa_is_cube_face(target)) { 3330 if (!ctx->Extensions.ARB_texture_cube_map) 3331 return GL_INVALID_ENUM; /*target*/ 3332 maxLevels = ctx->Const.MaxCubeTextureLevels; 3333 } 3334 else { 3335 return GL_INVALID_ENUM; /*target*/ 3336 } 3337 } 3338 else if (dimensions == 3) { 3339 /* 3D compressed textures not allowed */ 3340 return GL_INVALID_ENUM; 3341 } 3342 3343 maxTextureSize = 1 << (maxLevels - 1); 3344 3345 /* this will catch any invalid compressed format token */ 3346 if (!_mesa_is_compressed_format(ctx, format)) 3347 return GL_INVALID_ENUM; 3348 3349 if (width < 1 || width > maxTextureSize) 3350 return GL_INVALID_VALUE; 3351 3352 if ((height < 1 || height > maxTextureSize) 3353 && dimensions > 1) 3354 return GL_INVALID_VALUE; 3355 3356 if (level < 0 || level >= maxLevels) 3357 return GL_INVALID_VALUE; 3358 3359 /* 3360 * do checks which depend on compression block size 3361 */ 3362 get_compressed_block_size(format, &bw, &bh); 3363 3364 if ((xoffset % bw != 0) || (yoffset % bh != 0)) 3365 return GL_INVALID_VALUE; 3366 3367 if ((width % bw != 0) && width != 2 && width != 1) 3368 return GL_INVALID_VALUE; 3369 3370 if ((height % bh != 0) && height != 2 && height != 1) 3371 return GL_INVALID_VALUE; 3372 3373 expectedSize = compressed_tex_size(width, height, depth, format); 3374 if (expectedSize != imageSize) 3375 return GL_INVALID_VALUE; 3376 3377 return GL_NO_ERROR; 3378} 3379 3380 3381/** 3382 * Do second part of glCompressedTexSubImage error checking. 3383 * \return GL_TRUE if error found, GL_FALSE otherwise. 3384 */ 3385static GLboolean 3386compressed_subtexture_error_check2(struct gl_context *ctx, GLuint dims, 3387 GLsizei width, GLsizei height, 3388 GLsizei depth, GLenum format, 3389 struct gl_texture_image *texImage) 3390{ 3391 3392 if ((GLint) format != texImage->InternalFormat) { 3393 _mesa_error(ctx, GL_INVALID_OPERATION, 3394 "glCompressedTexSubImage%uD(format=0x%x)", dims, format); 3395 return GL_TRUE; 3396 } 3397 3398 if (compressedteximage_only_format(ctx, format)) { 3399 _mesa_error(ctx, GL_INVALID_OPERATION, 3400 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)" 3401 , dims, format); 3402 return GL_TRUE; 3403 } 3404 3405 if (((width == 1 || width == 2) && 3406 width != (GLsizei) texImage->Width) || 3407 (width > (GLsizei) texImage->Width)) { 3408 _mesa_error(ctx, GL_INVALID_VALUE, 3409 "glCompressedTexSubImage%uD(width=%d)", dims, width); 3410 return GL_TRUE; 3411 } 3412 3413 if (dims >= 2) { 3414 if (((height == 1 || height == 2) && 3415 height != (GLsizei) texImage->Height) || 3416 (height > (GLsizei) texImage->Height)) { 3417 _mesa_error(ctx, GL_INVALID_VALUE, 3418 "glCompressedTexSubImage%uD(height=%d)", dims, height); 3419 return GL_TRUE; 3420 } 3421 } 3422 3423 if (dims >= 3) { 3424 if (((depth == 1 || depth == 2) && 3425 depth != (GLsizei) texImage->Depth) || 3426 (depth > (GLsizei) texImage->Depth)) { 3427 _mesa_error(ctx, GL_INVALID_VALUE, 3428 "glCompressedTexSubImage%uD(depth=%d)", dims, depth); 3429 return GL_TRUE; 3430 } 3431 } 3432 3433 return GL_FALSE; 3434} 3435 3436 3437/** 3438 * Implementation of the glCompressedTexImage1/2/3D() functions. 3439 */ 3440static void 3441compressedteximage(struct gl_context *ctx, GLuint dims, 3442 GLenum target, GLint level, 3443 GLenum internalFormat, GLsizei width, 3444 GLsizei height, GLsizei depth, GLint border, 3445 GLsizei imageSize, const GLvoid *data) 3446{ 3447 GLenum error; 3448 char *reason = ""; 3449 3450 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3451 3452 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) 3453 _mesa_debug(ctx, 3454 "glCompressedTexImage%uDARB %s %d %s %d %d %d %d %d %p\n", 3455 dims, 3456 _mesa_lookup_enum_by_nr(target), level, 3457 _mesa_lookup_enum_by_nr(internalFormat), 3458 width, height, depth, border, imageSize, data); 3459 3460 /* check target */ 3461 if (!legal_teximage_target(ctx, dims, target)) { 3462 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target=%s)", 3463 dims, _mesa_lookup_enum_by_nr(target)); 3464 return; 3465 } 3466 3467 error = compressed_texture_error_check(ctx, dims, target, level, 3468 internalFormat, width, height, depth, 3469 border, imageSize, &reason); 3470 3471#if FEATURE_ES 3472 /* XXX this is kind of a hack */ 3473 if (!error && dims == 2) { 3474 switch (internalFormat) { 3475 case GL_PALETTE4_RGB8_OES: 3476 case GL_PALETTE4_RGBA8_OES: 3477 case GL_PALETTE4_R5_G6_B5_OES: 3478 case GL_PALETTE4_RGBA4_OES: 3479 case GL_PALETTE4_RGB5_A1_OES: 3480 case GL_PALETTE8_RGB8_OES: 3481 case GL_PALETTE8_RGBA8_OES: 3482 case GL_PALETTE8_R5_G6_B5_OES: 3483 case GL_PALETTE8_RGBA4_OES: 3484 case GL_PALETTE8_RGB5_A1_OES: 3485 _mesa_cpal_compressed_teximage2d(target, level, internalFormat, 3486 width, height, imageSize, data); 3487 return; 3488 } 3489 } 3490#endif 3491 3492 if (_mesa_is_proxy_texture(target)) { 3493 /* Proxy texture: just check for errors and update proxy state */ 3494 struct gl_texture_image *texImage; 3495 3496 if (!error) { 3497 struct gl_texture_object *texObj = 3498 _mesa_get_current_tex_object(ctx, target); 3499 gl_format texFormat = 3500 _mesa_choose_texture_format(ctx, texObj, target, level, 3501 internalFormat, GL_NONE, GL_NONE); 3502 if (!legal_texture_size(ctx, texFormat, width, height, depth)) { 3503 error = GL_OUT_OF_MEMORY; 3504 } 3505 } 3506 3507 texImage = _mesa_get_proxy_tex_image(ctx, target, level); 3508 if (texImage) { 3509 if (error) { 3510 /* if error, clear all proxy texture image parameters */ 3511 clear_teximage_fields(texImage); 3512 } 3513 else { 3514 /* no error: store the teximage parameters */ 3515 _mesa_init_teximage_fields(ctx, texImage, width, height, 3516 depth, border, internalFormat, 3517 MESA_FORMAT_NONE); 3518 } 3519 } 3520 } 3521 else { 3522 /* non-proxy target */ 3523 struct gl_texture_object *texObj; 3524 struct gl_texture_image *texImage; 3525 3526 if (error) { 3527 _mesa_error(ctx, error, "glCompressedTexImage%uD(%s)", dims, reason); 3528 return; 3529 } 3530 3531 texObj = _mesa_get_current_tex_object(ctx, target); 3532 3533 _mesa_lock_texture(ctx, texObj); 3534 { 3535 texImage = _mesa_get_tex_image(ctx, texObj, target, level); 3536 if (!texImage) { 3537 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3538 "glCompressedTexImage%uD", dims); 3539 } 3540 else { 3541 gl_format texFormat; 3542 3543 ctx->Driver.FreeTextureImageBuffer(ctx, texImage); 3544 3545 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level, 3546 internalFormat, GL_NONE, 3547 GL_NONE); 3548 3549 if (legal_texture_size(ctx, texFormat, width, height, depth)) { 3550 _mesa_init_teximage_fields(ctx, texImage, 3551 width, height, depth, 3552 border, internalFormat, texFormat); 3553 3554 ctx->Driver.CompressedTexImage(ctx, dims, texImage, imageSize, 3555 data); 3556 3557 check_gen_mipmap(ctx, target, texObj, level); 3558 3559 _mesa_dirty_texobj(ctx, texObj, GL_TRUE); 3560 } 3561 else { 3562 _mesa_error(ctx, GL_OUT_OF_MEMORY, 3563 "glCompressedTexImage%uD", dims); 3564 } 3565 } 3566 } 3567 _mesa_unlock_texture(ctx, texObj); 3568 } 3569} 3570 3571 3572void GLAPIENTRY 3573_mesa_CompressedTexImage1DARB(GLenum target, GLint level, 3574 GLenum internalFormat, GLsizei width, 3575 GLint border, GLsizei imageSize, 3576 const GLvoid *data) 3577{ 3578 GET_CURRENT_CONTEXT(ctx); 3579 compressedteximage(ctx, 1, target, level, internalFormat, 3580 width, 1, 1, border, imageSize, data); 3581} 3582 3583 3584void GLAPIENTRY 3585_mesa_CompressedTexImage2DARB(GLenum target, GLint level, 3586 GLenum internalFormat, GLsizei width, 3587 GLsizei height, GLint border, GLsizei imageSize, 3588 const GLvoid *data) 3589{ 3590 GET_CURRENT_CONTEXT(ctx); 3591 compressedteximage(ctx, 2, target, level, internalFormat, 3592 width, height, 1, border, imageSize, data); 3593} 3594 3595 3596void GLAPIENTRY 3597_mesa_CompressedTexImage3DARB(GLenum target, GLint level, 3598 GLenum internalFormat, GLsizei width, 3599 GLsizei height, GLsizei depth, GLint border, 3600 GLsizei imageSize, const GLvoid *data) 3601{ 3602 GET_CURRENT_CONTEXT(ctx); 3603 compressedteximage(ctx, 3, target, level, internalFormat, 3604 width, height, depth, border, imageSize, data); 3605} 3606 3607 3608/** 3609 * Common helper for glCompressedTexSubImage1/2/3D(). 3610 */ 3611static void 3612compressed_tex_sub_image(GLuint dims, GLenum target, GLint level, 3613 GLint xoffset, GLint yoffset, GLint zoffset, 3614 GLsizei width, GLsizei height, GLsizei depth, 3615 GLenum format, GLsizei imageSize, const GLvoid *data) 3616{ 3617 struct gl_texture_object *texObj; 3618 struct gl_texture_image *texImage; 3619 GLenum error; 3620 GET_CURRENT_CONTEXT(ctx); 3621 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3622 3623 error = compressed_subtexture_error_check(ctx, dims, target, level, 3624 xoffset, 0, 0, /* pos */ 3625 width, height, depth, /* size */ 3626 format, imageSize); 3627 if (error) { 3628 _mesa_error(ctx, error, "glCompressedTexSubImage%uD", dims); 3629 return; 3630 } 3631 3632 texObj = _mesa_get_current_tex_object(ctx, target); 3633 3634 _mesa_lock_texture(ctx, texObj); 3635 { 3636 texImage = _mesa_select_tex_image(ctx, texObj, target, level); 3637 assert(texImage); 3638 3639 if (compressed_subtexture_error_check2(ctx, dims, width, height, depth, 3640 format, texImage)) { 3641 /* error was recorded */ 3642 } 3643 else if (width > 0 && height > 0 && depth > 0) { 3644 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage, 3645 xoffset, yoffset, zoffset, 3646 width, height, depth, 3647 format, imageSize, data); 3648 3649 check_gen_mipmap(ctx, target, texObj, level); 3650 3651 ctx->NewState |= _NEW_TEXTURE; 3652 } 3653 } 3654 _mesa_unlock_texture(ctx, texObj); 3655} 3656 3657 3658void GLAPIENTRY 3659_mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset, 3660 GLsizei width, GLenum format, 3661 GLsizei imageSize, const GLvoid *data) 3662{ 3663 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1, 3664 format, imageSize, data); 3665} 3666 3667 3668void GLAPIENTRY 3669_mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset, 3670 GLint yoffset, GLsizei width, GLsizei height, 3671 GLenum format, GLsizei imageSize, 3672 const GLvoid *data) 3673{ 3674 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0, 3675 width, height, 1, format, imageSize, data); 3676} 3677 3678 3679void GLAPIENTRY 3680_mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset, 3681 GLint yoffset, GLint zoffset, GLsizei width, 3682 GLsizei height, GLsizei depth, GLenum format, 3683 GLsizei imageSize, const GLvoid *data) 3684{ 3685 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset, 3686 width, height, depth, format, imageSize, data); 3687} 3688 3689static gl_format 3690get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3691{ 3692 switch (internalFormat) { 3693 case GL_ALPHA8: 3694 return MESA_FORMAT_A8; 3695 case GL_ALPHA16: 3696 return MESA_FORMAT_A16; 3697 case GL_ALPHA16F_ARB: 3698 return MESA_FORMAT_ALPHA_FLOAT16; 3699 case GL_ALPHA32F_ARB: 3700 return MESA_FORMAT_ALPHA_FLOAT32; 3701 case GL_ALPHA8I_EXT: 3702 return MESA_FORMAT_ALPHA_INT8; 3703 case GL_ALPHA16I_EXT: 3704 return MESA_FORMAT_ALPHA_INT16; 3705 case GL_ALPHA32I_EXT: 3706 return MESA_FORMAT_ALPHA_INT32; 3707 case GL_ALPHA8UI_EXT: 3708 return MESA_FORMAT_ALPHA_UINT8; 3709 case GL_ALPHA16UI_EXT: 3710 return MESA_FORMAT_ALPHA_UINT16; 3711 case GL_ALPHA32UI_EXT: 3712 return MESA_FORMAT_ALPHA_UINT32; 3713 case GL_LUMINANCE8: 3714 return MESA_FORMAT_L8; 3715 case GL_LUMINANCE16: 3716 return MESA_FORMAT_L16; 3717 case GL_LUMINANCE16F_ARB: 3718 return MESA_FORMAT_LUMINANCE_FLOAT16; 3719 case GL_LUMINANCE32F_ARB: 3720 return MESA_FORMAT_LUMINANCE_FLOAT32; 3721 case GL_LUMINANCE8I_EXT: 3722 return MESA_FORMAT_LUMINANCE_INT8; 3723 case GL_LUMINANCE16I_EXT: 3724 return MESA_FORMAT_LUMINANCE_INT16; 3725 case GL_LUMINANCE32I_EXT: 3726 return MESA_FORMAT_LUMINANCE_INT32; 3727 case GL_LUMINANCE8UI_EXT: 3728 return MESA_FORMAT_LUMINANCE_UINT8; 3729 case GL_LUMINANCE16UI_EXT: 3730 return MESA_FORMAT_LUMINANCE_UINT16; 3731 case GL_LUMINANCE32UI_EXT: 3732 return MESA_FORMAT_LUMINANCE_UINT32; 3733 case GL_LUMINANCE8_ALPHA8: 3734 return MESA_FORMAT_AL88; 3735 case GL_LUMINANCE16_ALPHA16: 3736 return MESA_FORMAT_AL1616; 3737 case GL_LUMINANCE_ALPHA16F_ARB: 3738 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16; 3739 case GL_LUMINANCE_ALPHA32F_ARB: 3740 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32; 3741 case GL_LUMINANCE_ALPHA8I_EXT: 3742 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3743 case GL_LUMINANCE_ALPHA16I_EXT: 3744 return MESA_FORMAT_LUMINANCE_ALPHA_INT8; 3745 case GL_LUMINANCE_ALPHA32I_EXT: 3746 return MESA_FORMAT_LUMINANCE_ALPHA_INT16; 3747 case GL_LUMINANCE_ALPHA8UI_EXT: 3748 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8; 3749 case GL_LUMINANCE_ALPHA16UI_EXT: 3750 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16; 3751 case GL_LUMINANCE_ALPHA32UI_EXT: 3752 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32; 3753 case GL_INTENSITY8: 3754 return MESA_FORMAT_I8; 3755 case GL_INTENSITY16: 3756 return MESA_FORMAT_I16; 3757 case GL_INTENSITY16F_ARB: 3758 return MESA_FORMAT_INTENSITY_FLOAT16; 3759 case GL_INTENSITY32F_ARB: 3760 return MESA_FORMAT_INTENSITY_FLOAT32; 3761 case GL_INTENSITY8I_EXT: 3762 return MESA_FORMAT_INTENSITY_INT8; 3763 case GL_INTENSITY16I_EXT: 3764 return MESA_FORMAT_INTENSITY_INT16; 3765 case GL_INTENSITY32I_EXT: 3766 return MESA_FORMAT_INTENSITY_INT32; 3767 case GL_INTENSITY8UI_EXT: 3768 return MESA_FORMAT_INTENSITY_UINT8; 3769 case GL_INTENSITY16UI_EXT: 3770 return MESA_FORMAT_INTENSITY_UINT16; 3771 case GL_INTENSITY32UI_EXT: 3772 return MESA_FORMAT_INTENSITY_UINT32; 3773 case GL_RGBA8: 3774 return MESA_FORMAT_RGBA8888_REV; 3775 case GL_RGBA16: 3776 return MESA_FORMAT_RGBA_16; 3777 case GL_RGBA16F_ARB: 3778 return MESA_FORMAT_RGBA_FLOAT16; 3779 case GL_RGBA32F_ARB: 3780 return MESA_FORMAT_RGBA_FLOAT32; 3781 case GL_RGBA8I_EXT: 3782 return MESA_FORMAT_RGBA_INT8; 3783 case GL_RGBA16I_EXT: 3784 return MESA_FORMAT_RGBA_INT16; 3785 case GL_RGBA32I_EXT: 3786 return MESA_FORMAT_RGBA_INT32; 3787 case GL_RGBA8UI_EXT: 3788 return MESA_FORMAT_RGBA_UINT8; 3789 case GL_RGBA16UI_EXT: 3790 return MESA_FORMAT_RGBA_UINT16; 3791 case GL_RGBA32UI_EXT: 3792 return MESA_FORMAT_RGBA_UINT32; 3793 3794 case GL_RG8: 3795 return MESA_FORMAT_GR88; 3796 case GL_RG16: 3797 return MESA_FORMAT_RG1616; 3798 case GL_RG16F: 3799 return MESA_FORMAT_RG_FLOAT16; 3800 case GL_RG32F: 3801 return MESA_FORMAT_RG_FLOAT32; 3802 case GL_RG8I: 3803 return MESA_FORMAT_RG_INT8; 3804 case GL_RG16I: 3805 return MESA_FORMAT_RG_INT16; 3806 case GL_RG32I: 3807 return MESA_FORMAT_RG_INT32; 3808 case GL_RG8UI: 3809 return MESA_FORMAT_RG_UINT8; 3810 case GL_RG16UI: 3811 return MESA_FORMAT_RG_UINT16; 3812 case GL_RG32UI: 3813 return MESA_FORMAT_RG_UINT32; 3814 3815 case GL_R8: 3816 return MESA_FORMAT_R8; 3817 case GL_R16: 3818 return MESA_FORMAT_R16; 3819 case GL_R16F: 3820 return MESA_FORMAT_R_FLOAT16; 3821 case GL_R32F: 3822 return MESA_FORMAT_R_FLOAT32; 3823 case GL_R8I: 3824 return MESA_FORMAT_R_INT8; 3825 case GL_R16I: 3826 return MESA_FORMAT_R_INT16; 3827 case GL_R32I: 3828 return MESA_FORMAT_R_INT32; 3829 case GL_R8UI: 3830 return MESA_FORMAT_R_UINT8; 3831 case GL_R16UI: 3832 return MESA_FORMAT_R_UINT16; 3833 case GL_R32UI: 3834 return MESA_FORMAT_R_UINT32; 3835 3836 default: 3837 return MESA_FORMAT_NONE; 3838 } 3839} 3840 3841static gl_format 3842validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat) 3843{ 3844 gl_format format = get_texbuffer_format(ctx, internalFormat); 3845 GLenum datatype; 3846 3847 if (format == MESA_FORMAT_NONE) 3848 return MESA_FORMAT_NONE; 3849 3850 datatype = _mesa_get_format_datatype(format); 3851 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float) 3852 return MESA_FORMAT_NONE; 3853 3854 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel) 3855 return MESA_FORMAT_NONE; 3856 3857 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make 3858 * any mention of R/RG formats, but they appear in the GL 3.1 core 3859 * specification. 3860 */ 3861 if (ctx->Version <= 30) { 3862 GLenum base_format = _mesa_get_format_base_format(format); 3863 3864 if (base_format == GL_R || base_format == GL_RG) 3865 return MESA_FORMAT_NONE; 3866 } 3867 return format; 3868} 3869 3870 3871/** GL_ARB_texture_buffer_object */ 3872void GLAPIENTRY 3873_mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer) 3874{ 3875 struct gl_texture_object *texObj; 3876 struct gl_buffer_object *bufObj; 3877 gl_format format; 3878 3879 GET_CURRENT_CONTEXT(ctx); 3880 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx); 3881 3882 if (!ctx->Extensions.ARB_texture_buffer_object) { 3883 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer"); 3884 return; 3885 } 3886 3887 if (target != GL_TEXTURE_BUFFER_ARB) { 3888 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)"); 3889 return; 3890 } 3891 3892 format = validate_texbuffer_format(ctx, internalFormat); 3893 if (format == MESA_FORMAT_NONE) { 3894 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)", 3895 internalFormat); 3896 return; 3897 } 3898 3899 bufObj = _mesa_lookup_bufferobj(ctx, buffer); 3900 if (buffer && !bufObj) { 3901 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer); 3902 return; 3903 } 3904 3905 texObj = _mesa_get_current_tex_object(ctx, target); 3906 3907 _mesa_lock_texture(ctx, texObj); 3908 { 3909 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj); 3910 texObj->BufferObjectFormat = internalFormat; 3911 texObj->_BufferObjectFormat = format; 3912 } 3913 _mesa_unlock_texture(ctx, texObj); 3914} 3915