texparam.c revision c1f859d4
1/* 2 * Mesa 3-D graphics library 3 * Version: 7.5 4 * 5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved. 6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved. 7 * 8 * Permission is hereby granted, free of charge, to any person obtaining a 9 * copy of this software and associated documentation files (the "Software"), 10 * to deal in the Software without restriction, including without limitation 11 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 12 * and/or sell copies of the Software, and to permit persons to whom the 13 * Software is furnished to do so, subject to the following conditions: 14 * 15 * The above copyright notice and this permission notice shall be included 16 * in all copies or substantial portions of the Software. 17 * 18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 24 */ 25 26/** 27 * \file texparam.c 28 * 29 * glTexParameter-related functions 30 */ 31 32 33#include "main/glheader.h" 34#include "main/context.h" 35#include "main/enums.h" 36#include "main/colormac.h" 37#include "main/macros.h" 38#include "main/texcompress.h" 39#include "main/texparam.h" 40#include "main/teximage.h" 41 42 43/** 44 * Check if a coordinate wrap mode is supported for the texture target. 45 * \return GL_TRUE if legal, GL_FALSE otherwise 46 */ 47static GLboolean 48validate_texture_wrap_mode(GLcontext * ctx, GLenum target, GLenum wrap) 49{ 50 const struct gl_extensions * const e = & ctx->Extensions; 51 52 if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE || 53 (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) { 54 /* any texture target */ 55 return GL_TRUE; 56 } 57 else if (target != GL_TEXTURE_RECTANGLE_NV && 58 (wrap == GL_REPEAT || 59 (wrap == GL_MIRRORED_REPEAT && 60 e->ARB_texture_mirrored_repeat) || 61 (wrap == GL_MIRROR_CLAMP_EXT && 62 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || 63 (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT && 64 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) || 65 (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT && 66 (e->EXT_texture_mirror_clamp)))) { 67 /* non-rectangle texture */ 68 return GL_TRUE; 69 } 70 71 _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); 72 return GL_FALSE; 73} 74 75 76/** 77 * Get current texture object for given target. 78 * Return NULL if any error. 79 */ 80static struct gl_texture_object * 81get_texobj(GLcontext *ctx, GLenum target) 82{ 83 struct gl_texture_unit *texUnit; 84 85 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { 86 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(current unit)"); 87 return NULL; 88 } 89 90 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 91 92 switch (target) { 93 case GL_TEXTURE_1D: 94 return texUnit->CurrentTex[TEXTURE_1D_INDEX]; 95 case GL_TEXTURE_2D: 96 return texUnit->CurrentTex[TEXTURE_2D_INDEX]; 97 case GL_TEXTURE_3D: 98 return texUnit->CurrentTex[TEXTURE_3D_INDEX]; 99 case GL_TEXTURE_CUBE_MAP: 100 if (ctx->Extensions.ARB_texture_cube_map) { 101 return texUnit->CurrentTex[TEXTURE_CUBE_INDEX]; 102 } 103 break; 104 case GL_TEXTURE_RECTANGLE_NV: 105 if (ctx->Extensions.NV_texture_rectangle) { 106 return texUnit->CurrentTex[TEXTURE_RECT_INDEX]; 107 } 108 break; 109 case GL_TEXTURE_1D_ARRAY_EXT: 110 if (ctx->Extensions.MESA_texture_array) { 111 return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX]; 112 } 113 break; 114 case GL_TEXTURE_2D_ARRAY_EXT: 115 if (ctx->Extensions.MESA_texture_array) { 116 return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX]; 117 } 118 break; 119 default: 120 ; 121 } 122 123 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(target)"); 124 return NULL; 125} 126 127 128/** 129 * This is called just prior to changing any texture object state. 130 * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE 131 * state flag and then mark the texture object as 'incomplete' so that any 132 * per-texture derived state gets recomputed. 133 */ 134static INLINE void 135flush(GLcontext *ctx, struct gl_texture_object *texObj) 136{ 137 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 138 texObj->_Complete = GL_FALSE; 139} 140 141 142/** 143 * Set an integer-valued texture parameter 144 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise 145 */ 146static GLboolean 147set_tex_parameteri(GLcontext *ctx, 148 struct gl_texture_object *texObj, 149 GLenum pname, const GLint *params) 150{ 151 switch (pname) { 152 case GL_TEXTURE_MIN_FILTER: 153 if (texObj->MinFilter == params[0]) 154 return GL_FALSE; 155 switch (params[0]) { 156 case GL_NEAREST: 157 case GL_LINEAR: 158 flush(ctx, texObj); 159 texObj->MinFilter = params[0]; 160 return GL_TRUE; 161 case GL_NEAREST_MIPMAP_NEAREST: 162 case GL_LINEAR_MIPMAP_NEAREST: 163 case GL_NEAREST_MIPMAP_LINEAR: 164 case GL_LINEAR_MIPMAP_LINEAR: 165 if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) { 166 flush(ctx, texObj); 167 texObj->MinFilter = params[0]; 168 return GL_TRUE; 169 } 170 /* fall-through */ 171 default: 172 _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); 173 } 174 return GL_FALSE; 175 176 case GL_TEXTURE_MAG_FILTER: 177 if (texObj->MagFilter == params[0]) 178 return GL_FALSE; 179 switch (params[0]) { 180 case GL_NEAREST: 181 case GL_LINEAR: 182 flush(ctx, texObj); 183 texObj->MagFilter = params[0]; 184 return GL_TRUE; 185 default: 186 _mesa_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); 187 } 188 return GL_FALSE; 189 190 case GL_TEXTURE_WRAP_S: 191 if (texObj->WrapS == params[0]) 192 return GL_FALSE; 193 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { 194 flush(ctx, texObj); 195 texObj->WrapS = params[0]; 196 return GL_TRUE; 197 } 198 return GL_FALSE; 199 200 case GL_TEXTURE_WRAP_T: 201 if (texObj->WrapT == params[0]) 202 return GL_FALSE; 203 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { 204 flush(ctx, texObj); 205 texObj->WrapT = params[0]; 206 return GL_TRUE; 207 } 208 return GL_FALSE; 209 210 case GL_TEXTURE_WRAP_R: 211 if (texObj->WrapR == params[0]) 212 return GL_FALSE; 213 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) { 214 flush(ctx, texObj); 215 texObj->WrapR = params[0]; 216 return GL_TRUE; 217 } 218 return GL_FALSE; 219 220 case GL_TEXTURE_BASE_LEVEL: 221 if (texObj->BaseLevel == params[0]) 222 return GL_FALSE; 223 if (params[0] < 0 || 224 (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) { 225 _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)"); 226 return GL_FALSE; 227 } 228 flush(ctx, texObj); 229 texObj->BaseLevel = params[0]; 230 return GL_TRUE; 231 232 case GL_TEXTURE_MAX_LEVEL: 233 if (texObj->MaxLevel == params[0]) 234 return GL_FALSE; 235 if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) { 236 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexParameter(param)"); 237 return GL_FALSE; 238 } 239 flush(ctx, texObj); 240 texObj->MaxLevel = params[0]; 241 return GL_TRUE; 242 243 case GL_TEXTURE_COMPARE_SGIX: 244 if (ctx->Extensions.SGIX_shadow) { 245 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 246 texObj->CompareFlag = params[0] ? GL_TRUE : GL_FALSE; 247 } 248 else { 249 _mesa_error(ctx, GL_INVALID_ENUM, 250 "glTexParameter(pname=GL_TEXTURE_COMPARE_SGIX)"); 251 } 252 return GL_TRUE; 253 254 case GL_TEXTURE_COMPARE_OPERATOR_SGIX: 255 if (ctx->Extensions.SGIX_shadow && 256 (params[0] == GL_TEXTURE_LEQUAL_R_SGIX || 257 params[0] == GL_TEXTURE_GEQUAL_R_SGIX)) { 258 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 259 texObj->CompareOperator = params[0]; 260 } 261 else { 262 _mesa_error(ctx, GL_INVALID_ENUM, 263 "glTexParameter(GL_TEXTURE_COMPARE_OPERATOR_SGIX)"); 264 } 265 return GL_TRUE; 266 267 case GL_GENERATE_MIPMAP_SGIS: 268 if (ctx->Extensions.SGIS_generate_mipmap) { 269 if (texObj->GenerateMipmap != params[0]) { 270 flush(ctx, texObj); 271 texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE; 272 return GL_TRUE; 273 } 274 return GL_FALSE; 275 } 276 else { 277 _mesa_error(ctx, GL_INVALID_ENUM, 278 "glTexParameter(pname=GL_GENERATE_MIPMAP_SGIS)"); 279 } 280 return GL_FALSE; 281 282 case GL_TEXTURE_COMPARE_MODE_ARB: 283 if (ctx->Extensions.ARB_shadow && 284 (params[0] == GL_NONE || 285 params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) { 286 if (texObj->CompareMode != params[0]) { 287 flush(ctx, texObj); 288 texObj->CompareMode = params[0]; 289 return GL_TRUE; 290 } 291 return GL_FALSE; 292 } 293 else { 294 _mesa_error(ctx, GL_INVALID_ENUM, 295 "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)"); 296 } 297 return GL_FALSE; 298 299 case GL_TEXTURE_COMPARE_FUNC_ARB: 300 if (ctx->Extensions.ARB_shadow) { 301 if (texObj->CompareFunc == params[0]) 302 return GL_FALSE; 303 switch (params[0]) { 304 case GL_LEQUAL: 305 case GL_GEQUAL: 306 flush(ctx, texObj); 307 texObj->CompareFunc = params[0]; 308 return GL_TRUE; 309 case GL_EQUAL: 310 case GL_NOTEQUAL: 311 case GL_LESS: 312 case GL_GREATER: 313 case GL_ALWAYS: 314 case GL_NEVER: 315 if (ctx->Extensions.EXT_shadow_funcs) { 316 flush(ctx, texObj); 317 texObj->CompareFunc = params[0]; 318 return GL_TRUE; 319 } 320 /* fall-through */ 321 default: 322 _mesa_error(ctx, GL_INVALID_ENUM, 323 "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)"); 324 } 325 } 326 else { 327 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(param)"); 328 } 329 return GL_FALSE; 330 331 case GL_DEPTH_TEXTURE_MODE_ARB: 332 if (ctx->Extensions.ARB_depth_texture && 333 (params[0] == GL_LUMINANCE || 334 params[0] == GL_INTENSITY || 335 params[0] == GL_ALPHA)) { 336 if (texObj->DepthMode != params[0]) { 337 flush(ctx, texObj); 338 texObj->DepthMode = params[0]; 339 return GL_TRUE; 340 } 341 } 342 else { 343 _mesa_error(ctx, GL_INVALID_ENUM, 344 "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)"); 345 } 346 return GL_FALSE; 347 348#ifdef FEATURE_OES_draw_texture 349 case GL_TEXTURE_CROP_RECT_OES: 350 texObj->CropRect[0] = params[0]; 351 texObj->CropRect[1] = params[1]; 352 texObj->CropRect[2] = params[2]; 353 texObj->CropRect[3] = params[3]; 354 return GL_TRUE; 355#endif 356 357 default: 358 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); 359 } 360 return GL_FALSE; 361} 362 363 364/** 365 * Set a float-valued texture parameter 366 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise 367 */ 368static GLboolean 369set_tex_parameterf(GLcontext *ctx, 370 struct gl_texture_object *texObj, 371 GLenum pname, const GLfloat *params) 372{ 373 switch (pname) { 374 case GL_TEXTURE_MIN_LOD: 375 if (texObj->MinLod == params[0]) 376 return GL_FALSE; 377 flush(ctx, texObj); 378 texObj->MinLod = params[0]; 379 return GL_TRUE; 380 381 case GL_TEXTURE_MAX_LOD: 382 if (texObj->MaxLod == params[0]) 383 return GL_FALSE; 384 flush(ctx, texObj); 385 texObj->MaxLod = params[0]; 386 return GL_TRUE; 387 388 case GL_TEXTURE_PRIORITY: 389 flush(ctx, texObj); 390 texObj->Priority = CLAMP(params[0], 0.0F, 1.0F); 391 return GL_TRUE; 392 393 case GL_TEXTURE_MAX_ANISOTROPY_EXT: 394 if (ctx->Extensions.EXT_texture_filter_anisotropic) { 395 if (texObj->MaxAnisotropy == params[0]) 396 return GL_FALSE; 397 if (params[0] < 1.0) { 398 _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" ); 399 return GL_FALSE; 400 } 401 flush(ctx, texObj); 402 /* clamp to max, that's what NVIDIA does */ 403 texObj->MaxAnisotropy = MIN2(params[0], 404 ctx->Const.MaxTextureMaxAnisotropy); 405 return GL_TRUE; 406 } 407 else { 408 _mesa_error(ctx, GL_INVALID_ENUM, 409 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)"); 410 } 411 return GL_FALSE; 412 413 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB: 414 if (ctx->Extensions.SGIX_shadow_ambient) { 415 if (texObj->ShadowAmbient != params[0]) { 416 flush(ctx, texObj); 417 texObj->ShadowAmbient = CLAMP(params[0], 0.0F, 1.0F); 418 return GL_TRUE; 419 } 420 } 421 else { 422 _mesa_error(ctx, GL_INVALID_ENUM, 423 "glTexParameter(pname=GL_SHADOW_AMBIENT_SGIX)"); 424 } 425 return GL_FALSE; 426 427 case GL_TEXTURE_LOD_BIAS: 428 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */ 429 if (ctx->Extensions.EXT_texture_lod_bias) { 430 if (texObj->LodBias != params[0]) { 431 flush(ctx, texObj); 432 texObj->LodBias = params[0]; 433 return GL_TRUE; 434 } 435 return GL_FALSE; 436 } 437 break; 438 439 case GL_TEXTURE_BORDER_COLOR: 440 flush(ctx, texObj); 441 texObj->BorderColor[RCOMP] = params[0]; 442 texObj->BorderColor[GCOMP] = params[1]; 443 texObj->BorderColor[BCOMP] = params[2]; 444 texObj->BorderColor[ACOMP] = params[3]; 445 UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[RCOMP], params[0]); 446 UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[GCOMP], params[1]); 447 UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[BCOMP], params[2]); 448 UNCLAMPED_FLOAT_TO_CHAN(texObj->_BorderChan[ACOMP], params[3]); 449 return GL_TRUE; 450 451 default: 452 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname); 453 } 454 return GL_FALSE; 455} 456 457 458void GLAPIENTRY 459_mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param) 460{ 461 GLboolean need_update; 462 struct gl_texture_object *texObj; 463 GET_CURRENT_CONTEXT(ctx); 464 ASSERT_OUTSIDE_BEGIN_END(ctx); 465 466 texObj = get_texobj(ctx, target); 467 if (!texObj) 468 return; 469 470 switch (pname) { 471 case GL_TEXTURE_MIN_FILTER: 472 case GL_TEXTURE_MAG_FILTER: 473 case GL_TEXTURE_WRAP_S: 474 case GL_TEXTURE_WRAP_T: 475 case GL_TEXTURE_WRAP_R: 476 case GL_TEXTURE_BASE_LEVEL: 477 case GL_TEXTURE_MAX_LEVEL: 478 case GL_TEXTURE_COMPARE_SGIX: 479 case GL_TEXTURE_COMPARE_OPERATOR_SGIX: 480 case GL_GENERATE_MIPMAP_SGIS: 481 case GL_TEXTURE_COMPARE_MODE_ARB: 482 case GL_TEXTURE_COMPARE_FUNC_ARB: 483 case GL_DEPTH_TEXTURE_MODE_ARB: 484 { 485 /* convert float param to int */ 486 GLint p = (GLint) param; 487 need_update = set_tex_parameteri(ctx, texObj, pname, &p); 488 } 489 break; 490 default: 491 /* this will generate an error if pname is illegal */ 492 need_update = set_tex_parameterf(ctx, texObj, pname, ¶m); 493 } 494 495 if (ctx->Driver.TexParameter && need_update) { 496 ctx->Driver.TexParameter(ctx, target, texObj, pname, ¶m); 497 } 498} 499 500 501void GLAPIENTRY 502_mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params) 503{ 504 GLboolean need_update; 505 struct gl_texture_object *texObj; 506 GET_CURRENT_CONTEXT(ctx); 507 ASSERT_OUTSIDE_BEGIN_END(ctx); 508 509 texObj = get_texobj(ctx, target); 510 if (!texObj) 511 return; 512 513 switch (pname) { 514 case GL_TEXTURE_MIN_FILTER: 515 case GL_TEXTURE_MAG_FILTER: 516 case GL_TEXTURE_WRAP_S: 517 case GL_TEXTURE_WRAP_T: 518 case GL_TEXTURE_WRAP_R: 519 case GL_TEXTURE_BASE_LEVEL: 520 case GL_TEXTURE_MAX_LEVEL: 521 case GL_TEXTURE_COMPARE_SGIX: 522 case GL_TEXTURE_COMPARE_OPERATOR_SGIX: 523 case GL_GENERATE_MIPMAP_SGIS: 524 case GL_TEXTURE_COMPARE_MODE_ARB: 525 case GL_TEXTURE_COMPARE_FUNC_ARB: 526 case GL_DEPTH_TEXTURE_MODE_ARB: 527 { 528 /* convert float param to int */ 529 GLint p = (GLint) params[0]; 530 need_update = set_tex_parameteri(ctx, texObj, pname, &p); 531 } 532 break; 533 534#ifdef FEATURE_OES_draw_texture 535 case GL_TEXTURE_CROP_RECT_OES: 536 { 537 /* convert float params to int */ 538 GLint iparams[4]; 539 iparams[0] = (GLint) params[0]; 540 iparams[1] = (GLint) params[1]; 541 iparams[2] = (GLint) params[2]; 542 iparams[3] = (GLint) params[3]; 543 need_update = set_tex_parameteri(ctx, target, iparams); 544 } 545 break; 546#endif 547 548 default: 549 /* this will generate an error if pname is illegal */ 550 need_update = set_tex_parameterf(ctx, texObj, pname, params); 551 } 552 553 if (ctx->Driver.TexParameter && need_update) { 554 ctx->Driver.TexParameter(ctx, target, texObj, pname, params); 555 } 556} 557 558 559void GLAPIENTRY 560_mesa_TexParameteri(GLenum target, GLenum pname, GLint param) 561{ 562 GLboolean need_update; 563 struct gl_texture_object *texObj; 564 GET_CURRENT_CONTEXT(ctx); 565 ASSERT_OUTSIDE_BEGIN_END(ctx); 566 567 texObj = get_texobj(ctx, target); 568 if (!texObj) 569 return; 570 571 switch (pname) { 572 case GL_TEXTURE_MIN_LOD: 573 case GL_TEXTURE_MAX_LOD: 574 case GL_TEXTURE_PRIORITY: 575 case GL_TEXTURE_MAX_ANISOTROPY_EXT: 576 case GL_TEXTURE_LOD_BIAS: 577 case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ 578 { 579 GLfloat fparam = (GLfloat) param; 580 /* convert int param to float */ 581 need_update = set_tex_parameterf(ctx, texObj, pname, &fparam); 582 } 583 break; 584 default: 585 /* this will generate an error if pname is illegal */ 586 need_update = set_tex_parameteri(ctx, texObj, pname, ¶m); 587 } 588 589 if (ctx->Driver.TexParameter && need_update) { 590 GLfloat fparam = (GLfloat) param; 591 ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam); 592 } 593} 594 595 596void GLAPIENTRY 597_mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params) 598{ 599 GLboolean need_update; 600 struct gl_texture_object *texObj; 601 GET_CURRENT_CONTEXT(ctx); 602 ASSERT_OUTSIDE_BEGIN_END(ctx); 603 604 texObj = get_texobj(ctx, target); 605 if (!texObj) 606 return; 607 608 switch (pname) { 609 case GL_TEXTURE_BORDER_COLOR: 610 { 611 /* convert int params to float */ 612 GLfloat fparams[4]; 613 fparams[0] = INT_TO_FLOAT(params[0]); 614 fparams[1] = INT_TO_FLOAT(params[1]); 615 fparams[2] = INT_TO_FLOAT(params[2]); 616 fparams[3] = INT_TO_FLOAT(params[3]); 617 need_update = set_tex_parameterf(ctx, texObj, pname, fparams); 618 } 619 break; 620 case GL_TEXTURE_MIN_LOD: 621 case GL_TEXTURE_MAX_LOD: 622 case GL_TEXTURE_PRIORITY: 623 case GL_TEXTURE_MAX_ANISOTROPY_EXT: 624 case GL_TEXTURE_LOD_BIAS: 625 case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ 626 { 627 /* convert int param to float */ 628 GLfloat fparam = (GLfloat) params[0]; 629 need_update = set_tex_parameterf(ctx, texObj, pname, &fparam); 630 } 631 break; 632 default: 633 /* this will generate an error if pname is illegal */ 634 need_update = set_tex_parameteri(ctx, texObj, pname, params); 635 } 636 637 if (ctx->Driver.TexParameter && need_update) { 638 GLfloat fparams[4]; 639 fparams[0] = INT_TO_FLOAT(params[0]); 640 if (pname == GL_TEXTURE_BORDER_COLOR || 641 pname == GL_TEXTURE_CROP_RECT_OES) { 642 fparams[1] = INT_TO_FLOAT(params[1]); 643 fparams[2] = INT_TO_FLOAT(params[2]); 644 fparams[3] = INT_TO_FLOAT(params[3]); 645 } 646 ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams); 647 } 648} 649 650 651void GLAPIENTRY 652_mesa_GetTexLevelParameterfv( GLenum target, GLint level, 653 GLenum pname, GLfloat *params ) 654{ 655 GLint iparam; 656 _mesa_GetTexLevelParameteriv( target, level, pname, &iparam ); 657 *params = (GLfloat) iparam; 658} 659 660 661static GLuint 662tex_image_dimensions(GLcontext *ctx, GLenum target) 663{ 664 switch (target) { 665 case GL_TEXTURE_1D: 666 case GL_PROXY_TEXTURE_1D: 667 return 1; 668 case GL_TEXTURE_2D: 669 case GL_PROXY_TEXTURE_2D: 670 return 2; 671 case GL_TEXTURE_3D: 672 case GL_PROXY_TEXTURE_3D: 673 return 3; 674 case GL_TEXTURE_CUBE_MAP: 675 case GL_PROXY_TEXTURE_CUBE_MAP: 676 case GL_TEXTURE_CUBE_MAP_POSITIVE_X: 677 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X: 678 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y: 679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y: 680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z: 681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z: 682 return ctx->Extensions.ARB_texture_cube_map ? 2 : 0; 683 case GL_TEXTURE_RECTANGLE_NV: 684 case GL_PROXY_TEXTURE_RECTANGLE_NV: 685 return ctx->Extensions.NV_texture_rectangle ? 2 : 0; 686 case GL_TEXTURE_1D_ARRAY_EXT: 687 case GL_PROXY_TEXTURE_1D_ARRAY_EXT: 688 return ctx->Extensions.MESA_texture_array ? 2 : 0; 689 case GL_TEXTURE_2D_ARRAY_EXT: 690 case GL_PROXY_TEXTURE_2D_ARRAY_EXT: 691 return ctx->Extensions.MESA_texture_array ? 3 : 0; 692 default: 693 _mesa_problem(ctx, "bad target in _mesa_tex_target_dimensions()"); 694 return 0; 695 } 696} 697 698 699void GLAPIENTRY 700_mesa_GetTexLevelParameteriv( GLenum target, GLint level, 701 GLenum pname, GLint *params ) 702{ 703 const struct gl_texture_unit *texUnit; 704 struct gl_texture_object *texObj; 705 const struct gl_texture_image *img = NULL; 706 GLuint dimensions; 707 GLboolean isProxy; 708 GLint maxLevels; 709 GET_CURRENT_CONTEXT(ctx); 710 ASSERT_OUTSIDE_BEGIN_END(ctx); 711 712 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { 713 _mesa_error(ctx, GL_INVALID_OPERATION, 714 "glGetTexLevelParameteriv(current unit)"); 715 return; 716 } 717 718 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 719 720 /* this will catch bad target values */ 721 dimensions = tex_image_dimensions(ctx, target); /* 1, 2 or 3 */ 722 if (dimensions == 0) { 723 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)"); 724 return; 725 } 726 727 maxLevels = _mesa_max_texture_levels(ctx, target); 728 if (maxLevels == 0) { 729 /* should not happen since <target> was just checked above */ 730 _mesa_problem(ctx, "maxLevels=0 in _mesa_GetTexLevelParameter"); 731 return; 732 } 733 734 if (level < 0 || level >= maxLevels) { 735 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" ); 736 return; 737 } 738 739 texObj = _mesa_select_tex_object(ctx, texUnit, target); 740 _mesa_lock_texture(ctx, texObj); 741 742 img = _mesa_select_tex_image(ctx, texObj, target, level); 743 if (!img || !img->TexFormat) { 744 /* undefined texture image */ 745 if (pname == GL_TEXTURE_COMPONENTS) 746 *params = 1; 747 else 748 *params = 0; 749 goto out; 750 } 751 752 isProxy = _mesa_is_proxy_texture(target); 753 754 switch (pname) { 755 case GL_TEXTURE_WIDTH: 756 *params = img->Width; 757 break; 758 case GL_TEXTURE_HEIGHT: 759 *params = img->Height; 760 break; 761 case GL_TEXTURE_DEPTH: 762 *params = img->Depth; 763 break; 764 case GL_TEXTURE_INTERNAL_FORMAT: 765 *params = img->InternalFormat; 766 break; 767 case GL_TEXTURE_BORDER: 768 *params = img->Border; 769 break; 770 case GL_TEXTURE_RED_SIZE: 771 if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) 772 *params = img->TexFormat->RedBits; 773 else 774 *params = 0; 775 break; 776 case GL_TEXTURE_GREEN_SIZE: 777 if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) 778 *params = img->TexFormat->GreenBits; 779 else 780 *params = 0; 781 break; 782 case GL_TEXTURE_BLUE_SIZE: 783 if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA) 784 *params = img->TexFormat->BlueBits; 785 else 786 *params = 0; 787 break; 788 case GL_TEXTURE_ALPHA_SIZE: 789 if (img->_BaseFormat == GL_ALPHA || 790 img->_BaseFormat == GL_LUMINANCE_ALPHA || 791 img->_BaseFormat == GL_RGBA) 792 *params = img->TexFormat->AlphaBits; 793 else 794 *params = 0; 795 break; 796 case GL_TEXTURE_INTENSITY_SIZE: 797 if (img->_BaseFormat != GL_INTENSITY) 798 *params = 0; 799 else if (img->TexFormat->IntensityBits > 0) 800 *params = img->TexFormat->IntensityBits; 801 else /* intensity probably stored as rgb texture */ 802 *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits); 803 break; 804 case GL_TEXTURE_LUMINANCE_SIZE: 805 if (img->_BaseFormat != GL_LUMINANCE && 806 img->_BaseFormat != GL_LUMINANCE_ALPHA) 807 *params = 0; 808 else if (img->TexFormat->LuminanceBits > 0) 809 *params = img->TexFormat->LuminanceBits; 810 else /* luminance probably stored as rgb texture */ 811 *params = MIN2(img->TexFormat->RedBits, img->TexFormat->GreenBits); 812 break; 813 case GL_TEXTURE_INDEX_SIZE_EXT: 814 if (img->_BaseFormat == GL_COLOR_INDEX) 815 *params = img->TexFormat->IndexBits; 816 else 817 *params = 0; 818 break; 819 case GL_TEXTURE_DEPTH_SIZE_ARB: 820 if (ctx->Extensions.ARB_depth_texture) 821 *params = img->TexFormat->DepthBits; 822 else 823 _mesa_error(ctx, GL_INVALID_ENUM, 824 "glGetTexLevelParameter[if]v(pname)"); 825 break; 826 case GL_TEXTURE_STENCIL_SIZE_EXT: 827 if (ctx->Extensions.EXT_packed_depth_stencil) { 828 *params = img->TexFormat->StencilBits; 829 } 830 else { 831 _mesa_error(ctx, GL_INVALID_ENUM, 832 "glGetTexLevelParameter[if]v(pname)"); 833 } 834 break; 835 836 /* GL_ARB_texture_compression */ 837 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE: 838 if (ctx->Extensions.ARB_texture_compression) { 839 if (img->IsCompressed && !isProxy) { 840 /* Don't use ctx->Driver.CompressedTextureSize() since that 841 * may returned a padded hardware size. 842 */ 843 *params = _mesa_compressed_texture_size(ctx, img->Width, 844 img->Height, img->Depth, 845 img->TexFormat->MesaFormat); 846 } 847 else { 848 _mesa_error(ctx, GL_INVALID_OPERATION, 849 "glGetTexLevelParameter[if]v(pname)"); 850 } 851 } 852 else { 853 _mesa_error(ctx, GL_INVALID_ENUM, 854 "glGetTexLevelParameter[if]v(pname)"); 855 } 856 break; 857 case GL_TEXTURE_COMPRESSED: 858 if (ctx->Extensions.ARB_texture_compression) { 859 *params = (GLint) img->IsCompressed; 860 } 861 else { 862 _mesa_error(ctx, GL_INVALID_ENUM, 863 "glGetTexLevelParameter[if]v(pname)"); 864 } 865 break; 866 867 /* GL_ARB_texture_float */ 868 case GL_TEXTURE_RED_TYPE_ARB: 869 if (ctx->Extensions.ARB_texture_float) { 870 *params = img->TexFormat->RedBits ? img->TexFormat->DataType : GL_NONE; 871 } 872 else { 873 _mesa_error(ctx, GL_INVALID_ENUM, 874 "glGetTexLevelParameter[if]v(pname)"); 875 } 876 break; 877 case GL_TEXTURE_GREEN_TYPE_ARB: 878 if (ctx->Extensions.ARB_texture_float) { 879 *params = img->TexFormat->GreenBits ? img->TexFormat->DataType : GL_NONE; 880 } 881 else { 882 _mesa_error(ctx, GL_INVALID_ENUM, 883 "glGetTexLevelParameter[if]v(pname)"); 884 } 885 break; 886 case GL_TEXTURE_BLUE_TYPE_ARB: 887 if (ctx->Extensions.ARB_texture_float) { 888 *params = img->TexFormat->BlueBits ? img->TexFormat->DataType : GL_NONE; 889 } 890 else { 891 _mesa_error(ctx, GL_INVALID_ENUM, 892 "glGetTexLevelParameter[if]v(pname)"); 893 } 894 break; 895 case GL_TEXTURE_ALPHA_TYPE_ARB: 896 if (ctx->Extensions.ARB_texture_float) { 897 *params = img->TexFormat->AlphaBits ? img->TexFormat->DataType : GL_NONE; 898 } 899 else { 900 _mesa_error(ctx, GL_INVALID_ENUM, 901 "glGetTexLevelParameter[if]v(pname)"); 902 } 903 break; 904 case GL_TEXTURE_LUMINANCE_TYPE_ARB: 905 if (ctx->Extensions.ARB_texture_float) { 906 *params = img->TexFormat->LuminanceBits ? img->TexFormat->DataType : GL_NONE; 907 } 908 else { 909 _mesa_error(ctx, GL_INVALID_ENUM, 910 "glGetTexLevelParameter[if]v(pname)"); 911 } 912 break; 913 case GL_TEXTURE_INTENSITY_TYPE_ARB: 914 if (ctx->Extensions.ARB_texture_float) { 915 *params = img->TexFormat->IntensityBits ? img->TexFormat->DataType : GL_NONE; 916 } 917 else { 918 _mesa_error(ctx, GL_INVALID_ENUM, 919 "glGetTexLevelParameter[if]v(pname)"); 920 } 921 break; 922 case GL_TEXTURE_DEPTH_TYPE_ARB: 923 if (ctx->Extensions.ARB_texture_float) { 924 *params = img->TexFormat->DepthBits ? img->TexFormat->DataType : GL_NONE; 925 } 926 else { 927 _mesa_error(ctx, GL_INVALID_ENUM, 928 "glGetTexLevelParameter[if]v(pname)"); 929 } 930 break; 931 932 default: 933 _mesa_error(ctx, GL_INVALID_ENUM, 934 "glGetTexLevelParameter[if]v(pname)"); 935 } 936 937 out: 938 _mesa_unlock_texture(ctx, texObj); 939} 940 941 942 943void GLAPIENTRY 944_mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params ) 945{ 946 struct gl_texture_unit *texUnit; 947 struct gl_texture_object *obj; 948 GLboolean error = GL_FALSE; 949 GET_CURRENT_CONTEXT(ctx); 950 ASSERT_OUTSIDE_BEGIN_END(ctx); 951 952 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { 953 _mesa_error(ctx, GL_INVALID_OPERATION, 954 "glGetTexParameterfv(current unit)"); 955 return; 956 } 957 958 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 959 960 obj = _mesa_select_tex_object(ctx, texUnit, target); 961 if (!obj) { 962 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)"); 963 return; 964 } 965 966 _mesa_lock_texture(ctx, obj); 967 switch (pname) { 968 case GL_TEXTURE_MAG_FILTER: 969 *params = ENUM_TO_FLOAT(obj->MagFilter); 970 break; 971 case GL_TEXTURE_MIN_FILTER: 972 *params = ENUM_TO_FLOAT(obj->MinFilter); 973 break; 974 case GL_TEXTURE_WRAP_S: 975 *params = ENUM_TO_FLOAT(obj->WrapS); 976 break; 977 case GL_TEXTURE_WRAP_T: 978 *params = ENUM_TO_FLOAT(obj->WrapT); 979 break; 980 case GL_TEXTURE_WRAP_R: 981 *params = ENUM_TO_FLOAT(obj->WrapR); 982 break; 983 case GL_TEXTURE_BORDER_COLOR: 984 params[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); 985 params[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); 986 params[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); 987 params[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); 988 break; 989 case GL_TEXTURE_RESIDENT: 990 { 991 GLboolean resident; 992 if (ctx->Driver.IsTextureResident) 993 resident = ctx->Driver.IsTextureResident(ctx, obj); 994 else 995 resident = GL_TRUE; 996 *params = ENUM_TO_FLOAT(resident); 997 } 998 break; 999 case GL_TEXTURE_PRIORITY: 1000 *params = obj->Priority; 1001 break; 1002 case GL_TEXTURE_MIN_LOD: 1003 *params = obj->MinLod; 1004 break; 1005 case GL_TEXTURE_MAX_LOD: 1006 *params = obj->MaxLod; 1007 break; 1008 case GL_TEXTURE_BASE_LEVEL: 1009 *params = (GLfloat) obj->BaseLevel; 1010 break; 1011 case GL_TEXTURE_MAX_LEVEL: 1012 *params = (GLfloat) obj->MaxLevel; 1013 break; 1014 case GL_TEXTURE_MAX_ANISOTROPY_EXT: 1015 if (ctx->Extensions.EXT_texture_filter_anisotropic) { 1016 *params = obj->MaxAnisotropy; 1017 } 1018 else 1019 error = 1; 1020 break; 1021 case GL_TEXTURE_COMPARE_SGIX: 1022 if (ctx->Extensions.SGIX_shadow) { 1023 *params = (GLfloat) obj->CompareFlag; 1024 } 1025 else 1026 error = 1; 1027 break; 1028 case GL_TEXTURE_COMPARE_OPERATOR_SGIX: 1029 if (ctx->Extensions.SGIX_shadow) { 1030 *params = (GLfloat) obj->CompareOperator; 1031 } 1032 else 1033 error = 1; 1034 break; 1035 case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ 1036 if (ctx->Extensions.SGIX_shadow_ambient) { 1037 *params = obj->ShadowAmbient; 1038 } 1039 else 1040 error = 1; 1041 break; 1042 case GL_GENERATE_MIPMAP_SGIS: 1043 if (ctx->Extensions.SGIS_generate_mipmap) { 1044 *params = (GLfloat) obj->GenerateMipmap; 1045 } 1046 else 1047 error = 1; 1048 break; 1049 case GL_TEXTURE_COMPARE_MODE_ARB: 1050 if (ctx->Extensions.ARB_shadow) { 1051 *params = (GLfloat) obj->CompareMode; 1052 } 1053 else 1054 error = 1; 1055 break; 1056 case GL_TEXTURE_COMPARE_FUNC_ARB: 1057 if (ctx->Extensions.ARB_shadow) { 1058 *params = (GLfloat) obj->CompareFunc; 1059 } 1060 else 1061 error = 1; 1062 break; 1063 case GL_DEPTH_TEXTURE_MODE_ARB: 1064 if (ctx->Extensions.ARB_depth_texture) { 1065 *params = (GLfloat) obj->DepthMode; 1066 } 1067 else 1068 error = 1; 1069 break; 1070 case GL_TEXTURE_LOD_BIAS: 1071 if (ctx->Extensions.EXT_texture_lod_bias) { 1072 *params = obj->LodBias; 1073 } 1074 else 1075 error = 1; 1076 break; 1077#ifdef FEATURE_OES_draw_texture 1078 case GL_TEXTURE_CROP_RECT_OES: 1079 params[0] = obj->CropRect[0]; 1080 params[1] = obj->CropRect[1]; 1081 params[2] = obj->CropRect[2]; 1082 params[3] = obj->CropRect[3]; 1083 break; 1084#endif 1085 default: 1086 error = 1; 1087 break; 1088 } 1089 if (error) 1090 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)", 1091 pname); 1092 1093 _mesa_unlock_texture(ctx, obj); 1094} 1095 1096 1097void GLAPIENTRY 1098_mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params ) 1099{ 1100 struct gl_texture_unit *texUnit; 1101 struct gl_texture_object *obj; 1102 GET_CURRENT_CONTEXT(ctx); 1103 ASSERT_OUTSIDE_BEGIN_END(ctx); 1104 1105 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureImageUnits) { 1106 _mesa_error(ctx, GL_INVALID_OPERATION, 1107 "glGetTexParameteriv(current unit)"); 1108 return; 1109 } 1110 1111 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1112 1113 obj = _mesa_select_tex_object(ctx, texUnit, target); 1114 if (!obj) { 1115 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(target)"); 1116 return; 1117 } 1118 1119 switch (pname) { 1120 case GL_TEXTURE_MAG_FILTER: 1121 *params = (GLint) obj->MagFilter; 1122 return; 1123 case GL_TEXTURE_MIN_FILTER: 1124 *params = (GLint) obj->MinFilter; 1125 return; 1126 case GL_TEXTURE_WRAP_S: 1127 *params = (GLint) obj->WrapS; 1128 return; 1129 case GL_TEXTURE_WRAP_T: 1130 *params = (GLint) obj->WrapT; 1131 return; 1132 case GL_TEXTURE_WRAP_R: 1133 *params = (GLint) obj->WrapR; 1134 return; 1135 case GL_TEXTURE_BORDER_COLOR: 1136 { 1137 GLfloat b[4]; 1138 b[0] = CLAMP(obj->BorderColor[0], 0.0F, 1.0F); 1139 b[1] = CLAMP(obj->BorderColor[1], 0.0F, 1.0F); 1140 b[2] = CLAMP(obj->BorderColor[2], 0.0F, 1.0F); 1141 b[3] = CLAMP(obj->BorderColor[3], 0.0F, 1.0F); 1142 params[0] = FLOAT_TO_INT(b[0]); 1143 params[1] = FLOAT_TO_INT(b[1]); 1144 params[2] = FLOAT_TO_INT(b[2]); 1145 params[3] = FLOAT_TO_INT(b[3]); 1146 } 1147 return; 1148 case GL_TEXTURE_RESIDENT: 1149 { 1150 GLboolean resident; 1151 if (ctx->Driver.IsTextureResident) 1152 resident = ctx->Driver.IsTextureResident(ctx, obj); 1153 else 1154 resident = GL_TRUE; 1155 *params = (GLint) resident; 1156 } 1157 return; 1158 case GL_TEXTURE_PRIORITY: 1159 *params = FLOAT_TO_INT(obj->Priority); 1160 return; 1161 case GL_TEXTURE_MIN_LOD: 1162 *params = (GLint) obj->MinLod; 1163 return; 1164 case GL_TEXTURE_MAX_LOD: 1165 *params = (GLint) obj->MaxLod; 1166 return; 1167 case GL_TEXTURE_BASE_LEVEL: 1168 *params = obj->BaseLevel; 1169 return; 1170 case GL_TEXTURE_MAX_LEVEL: 1171 *params = obj->MaxLevel; 1172 return; 1173 case GL_TEXTURE_MAX_ANISOTROPY_EXT: 1174 if (ctx->Extensions.EXT_texture_filter_anisotropic) { 1175 *params = (GLint) obj->MaxAnisotropy; 1176 return; 1177 } 1178 break; 1179 case GL_TEXTURE_COMPARE_SGIX: 1180 if (ctx->Extensions.SGIX_shadow) { 1181 *params = (GLint) obj->CompareFlag; 1182 return; 1183 } 1184 break; 1185 case GL_TEXTURE_COMPARE_OPERATOR_SGIX: 1186 if (ctx->Extensions.SGIX_shadow) { 1187 *params = (GLint) obj->CompareOperator; 1188 return; 1189 } 1190 break; 1191 case GL_SHADOW_AMBIENT_SGIX: /* aka GL_TEXTURE_COMPARE_FAIL_VALUE_ARB */ 1192 if (ctx->Extensions.SGIX_shadow_ambient) { 1193 *params = (GLint) FLOAT_TO_INT(obj->ShadowAmbient); 1194 return; 1195 } 1196 break; 1197 case GL_GENERATE_MIPMAP_SGIS: 1198 if (ctx->Extensions.SGIS_generate_mipmap) { 1199 *params = (GLint) obj->GenerateMipmap; 1200 return; 1201 } 1202 break; 1203 case GL_TEXTURE_COMPARE_MODE_ARB: 1204 if (ctx->Extensions.ARB_shadow) { 1205 *params = (GLint) obj->CompareMode; 1206 return; 1207 } 1208 break; 1209 case GL_TEXTURE_COMPARE_FUNC_ARB: 1210 if (ctx->Extensions.ARB_shadow) { 1211 *params = (GLint) obj->CompareFunc; 1212 return; 1213 } 1214 break; 1215 case GL_DEPTH_TEXTURE_MODE_ARB: 1216 if (ctx->Extensions.ARB_depth_texture) { 1217 *params = (GLint) obj->DepthMode; 1218 return; 1219 } 1220 break; 1221 case GL_TEXTURE_LOD_BIAS: 1222 if (ctx->Extensions.EXT_texture_lod_bias) { 1223 *params = (GLint) obj->LodBias; 1224 return; 1225 } 1226 break; 1227#ifdef FEATURE_OES_draw_texture 1228 case GL_TEXTURE_CROP_RECT_OES: 1229 params[0] = obj->CropRect[0]; 1230 params[1] = obj->CropRect[1]; 1231 params[2] = obj->CropRect[2]; 1232 params[3] = obj->CropRect[3]; 1233 break; 1234#endif 1235 default: 1236 ; /* silence warnings */ 1237 } 1238 /* If we get here, pname was an unrecognized enum */ 1239 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)", pname); 1240} 1241