enable.c revision 08be1d288f216232d3974f5997b266a8dd720928
1/** 2 * \file enable.c 3 * Enable/disable/query GL capabilities. 4 */ 5 6/* 7 * Mesa 3-D graphics library 8 * 9 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved. 10 * 11 * Permission is hereby granted, free of charge, to any person obtaining a 12 * copy of this software and associated documentation files (the "Software"), 13 * to deal in the Software without restriction, including without limitation 14 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 15 * and/or sell copies of the Software, and to permit persons to whom the 16 * Software is furnished to do so, subject to the following conditions: 17 * 18 * The above copyright notice and this permission notice shall be included 19 * in all copies or substantial portions of the Software. 20 * 21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS 22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 24 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN 25 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN 26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. 27 */ 28 29 30#include "glheader.h" 31#include "clip.h" 32#include "context.h" 33#include "enable.h" 34#include "light.h" 35#include "simple_list.h" 36#include "mfeatures.h" 37#include "mtypes.h" 38#include "enums.h" 39#include "api_arrayelt.h" 40#include "texstate.h" 41 42 43 44#define CHECK_EXTENSION(EXTNAME, CAP) \ 45 if (!ctx->Extensions.EXTNAME) { \ 46 goto invalid_enum_error; \ 47 } 48 49 50/** 51 * Helper to enable/disable client-side state. 52 */ 53static void 54client_state(struct gl_context *ctx, GLenum cap, GLboolean state) 55{ 56 struct gl_array_object *arrayObj = ctx->Array.ArrayObj; 57 GLbitfield64 flag; 58 GLboolean *var; 59 60 switch (cap) { 61 case GL_VERTEX_ARRAY: 62 var = &arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled; 63 flag = VERT_BIT_POS; 64 break; 65 case GL_NORMAL_ARRAY: 66 var = &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled; 67 flag = VERT_BIT_NORMAL; 68 break; 69 case GL_COLOR_ARRAY: 70 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled; 71 flag = VERT_BIT_COLOR0; 72 break; 73 case GL_INDEX_ARRAY: 74 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled; 75 flag = VERT_BIT_COLOR_INDEX; 76 break; 77 case GL_TEXTURE_COORD_ARRAY: 78 var = &arrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Enabled; 79 flag = VERT_BIT_TEX(ctx->Array.ActiveTexture); 80 break; 81 case GL_EDGE_FLAG_ARRAY: 82 var = &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled; 83 flag = VERT_BIT_EDGEFLAG; 84 break; 85 case GL_FOG_COORDINATE_ARRAY_EXT: 86 var = &arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled; 87 flag = VERT_BIT_FOG; 88 break; 89 case GL_SECONDARY_COLOR_ARRAY_EXT: 90 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled; 91 flag = VERT_BIT_COLOR1; 92 break; 93 94#if FEATURE_point_size_array 95 case GL_POINT_SIZE_ARRAY_OES: 96 var = &arrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled; 97 flag = VERT_BIT_POINT_SIZE; 98 break; 99#endif 100 101#if FEATURE_NV_vertex_program 102 case GL_VERTEX_ATTRIB_ARRAY0_NV: 103 case GL_VERTEX_ATTRIB_ARRAY1_NV: 104 case GL_VERTEX_ATTRIB_ARRAY2_NV: 105 case GL_VERTEX_ATTRIB_ARRAY3_NV: 106 case GL_VERTEX_ATTRIB_ARRAY4_NV: 107 case GL_VERTEX_ATTRIB_ARRAY5_NV: 108 case GL_VERTEX_ATTRIB_ARRAY6_NV: 109 case GL_VERTEX_ATTRIB_ARRAY7_NV: 110 case GL_VERTEX_ATTRIB_ARRAY8_NV: 111 case GL_VERTEX_ATTRIB_ARRAY9_NV: 112 case GL_VERTEX_ATTRIB_ARRAY10_NV: 113 case GL_VERTEX_ATTRIB_ARRAY11_NV: 114 case GL_VERTEX_ATTRIB_ARRAY12_NV: 115 case GL_VERTEX_ATTRIB_ARRAY13_NV: 116 case GL_VERTEX_ATTRIB_ARRAY14_NV: 117 case GL_VERTEX_ATTRIB_ARRAY15_NV: 118 CHECK_EXTENSION(NV_vertex_program, cap); 119 { 120 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; 121 ASSERT(VERT_ATTRIB_GENERIC(n) < Elements(arrayObj->VertexAttrib)); 122 var = &arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(n)].Enabled; 123 flag = VERT_BIT_GENERIC(n); 124 } 125 break; 126#endif /* FEATURE_NV_vertex_program */ 127 128 /* GL_NV_primitive_restart */ 129 case GL_PRIMITIVE_RESTART_NV: 130 if (!ctx->Extensions.NV_primitive_restart) { 131 goto invalid_enum_error; 132 } 133 var = &ctx->Array.PrimitiveRestart; 134 flag = 0; 135 break; 136 137 default: 138 goto invalid_enum_error; 139 } 140 141 if (*var == state) 142 return; 143 144 FLUSH_VERTICES(ctx, _NEW_ARRAY); 145 146 _ae_invalidate_state(ctx, _NEW_ARRAY); 147 148 *var = state; 149 150 if (state) 151 arrayObj->_Enabled |= flag; 152 else 153 arrayObj->_Enabled &= ~flag; 154 155 arrayObj->NewArrays |= flag; 156 157 if (ctx->Driver.Enable) { 158 ctx->Driver.Enable( ctx, cap, state ); 159 } 160 161 return; 162 163invalid_enum_error: 164 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(%s)", 165 state ? "Enable" : "Disable", _mesa_lookup_enum_by_nr(cap)); 166} 167 168 169/** 170 * Enable GL capability. 171 * \param cap state to enable/disable. 172 * 173 * Get's the current context, assures that we're outside glBegin()/glEnd() and 174 * calls client_state(). 175 */ 176void GLAPIENTRY 177_mesa_EnableClientState( GLenum cap ) 178{ 179 GET_CURRENT_CONTEXT(ctx); 180 ASSERT_OUTSIDE_BEGIN_END(ctx); 181 client_state( ctx, cap, GL_TRUE ); 182} 183 184 185/** 186 * Disable GL capability. 187 * \param cap state to enable/disable. 188 * 189 * Get's the current context, assures that we're outside glBegin()/glEnd() and 190 * calls client_state(). 191 */ 192void GLAPIENTRY 193_mesa_DisableClientState( GLenum cap ) 194{ 195 GET_CURRENT_CONTEXT(ctx); 196 ASSERT_OUTSIDE_BEGIN_END(ctx); 197 client_state( ctx, cap, GL_FALSE ); 198} 199 200 201#undef CHECK_EXTENSION 202#define CHECK_EXTENSION(EXTNAME, CAP) \ 203 if (!ctx->Extensions.EXTNAME) { \ 204 goto invalid_enum_error; \ 205 } 206 207#define CHECK_EXTENSION2(EXT1, EXT2, CAP) \ 208 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ 209 goto invalid_enum_error; \ 210 } 211 212/** 213 * Return pointer to current texture unit for setting/getting coordinate 214 * state. 215 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active 216 * texture unit is higher than the number of supported coordinate units. 217 */ 218static struct gl_texture_unit * 219get_texcoord_unit(struct gl_context *ctx) 220{ 221 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { 222 _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)"); 223 return NULL; 224 } 225 else { 226 return &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 227 } 228} 229 230 231/** 232 * Helper function to enable or disable a texture target. 233 * \param bit one of the TEXTURE_x_BIT values 234 * \return GL_TRUE if state is changing or GL_FALSE if no change 235 */ 236static GLboolean 237enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit) 238{ 239 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 240 const GLbitfield newenabled = state 241 ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit); 242 243 if (texUnit->Enabled == newenabled) 244 return GL_FALSE; 245 246 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 247 texUnit->Enabled = newenabled; 248 return GL_TRUE; 249} 250 251 252/** 253 * Helper function to enable or disable state. 254 * 255 * \param ctx GL context. 256 * \param cap the state to enable/disable 257 * \param state whether to enable or disable the specified capability. 258 * 259 * Updates the current context and flushes the vertices as needed. For 260 * capabilities associated with extensions it verifies that those extensions 261 * are effectivly present before updating. Notifies the driver via 262 * dd_function_table::Enable. 263 */ 264void 265_mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state) 266{ 267 if (MESA_VERBOSE & VERBOSE_API) 268 _mesa_debug(ctx, "%s %s (newstate is %x)\n", 269 state ? "glEnable" : "glDisable", 270 _mesa_lookup_enum_by_nr(cap), 271 ctx->NewState); 272 273 switch (cap) { 274 case GL_ALPHA_TEST: 275 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 276 goto invalid_enum_error; 277 if (ctx->Color.AlphaEnabled == state) 278 return; 279 FLUSH_VERTICES(ctx, _NEW_COLOR); 280 ctx->Color.AlphaEnabled = state; 281 break; 282 case GL_AUTO_NORMAL: 283 if (ctx->API != API_OPENGL) 284 goto invalid_enum_error; 285 if (ctx->Eval.AutoNormal == state) 286 return; 287 FLUSH_VERTICES(ctx, _NEW_EVAL); 288 ctx->Eval.AutoNormal = state; 289 break; 290 case GL_BLEND: 291 { 292 GLbitfield newEnabled = 293 state * ((1 << ctx->Const.MaxDrawBuffers) - 1); 294 if (newEnabled != ctx->Color.BlendEnabled) { 295 FLUSH_VERTICES(ctx, _NEW_COLOR); 296 ctx->Color.BlendEnabled = newEnabled; 297 } 298 } 299 break; 300#if FEATURE_userclip 301 case GL_CLIP_DISTANCE0: 302 case GL_CLIP_DISTANCE1: 303 case GL_CLIP_DISTANCE2: 304 case GL_CLIP_DISTANCE3: 305 case GL_CLIP_DISTANCE4: 306 case GL_CLIP_DISTANCE5: 307 case GL_CLIP_DISTANCE6: 308 case GL_CLIP_DISTANCE7: 309 { 310 const GLuint p = cap - GL_CLIP_DISTANCE0; 311 312 if (p >= ctx->Const.MaxClipPlanes) 313 goto invalid_enum_error; 314 315 if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) 316 == ((GLuint) state << p)) 317 return; 318 319 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 320 321 if (state) { 322 ctx->Transform.ClipPlanesEnabled |= (1 << p); 323 _mesa_update_clip_plane(ctx, p); 324 } 325 else { 326 ctx->Transform.ClipPlanesEnabled &= ~(1 << p); 327 } 328 } 329 break; 330#endif 331 case GL_COLOR_MATERIAL: 332 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 333 goto invalid_enum_error; 334 if (ctx->Light.ColorMaterialEnabled == state) 335 return; 336 FLUSH_VERTICES(ctx, _NEW_LIGHT); 337 FLUSH_CURRENT(ctx, 0); 338 ctx->Light.ColorMaterialEnabled = state; 339 if (state) { 340 _mesa_update_color_material( ctx, 341 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); 342 } 343 break; 344 case GL_CULL_FACE: 345 if (ctx->Polygon.CullFlag == state) 346 return; 347 FLUSH_VERTICES(ctx, _NEW_POLYGON); 348 ctx->Polygon.CullFlag = state; 349 break; 350 case GL_DEPTH_TEST: 351 if (ctx->Depth.Test == state) 352 return; 353 FLUSH_VERTICES(ctx, _NEW_DEPTH); 354 ctx->Depth.Test = state; 355 break; 356 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: 357 if (!_mesa_is_desktop_gl(ctx)) 358 goto invalid_enum_error; 359 ctx->Debug.SyncOutput = state; 360 break; 361 case GL_DITHER: 362 if (ctx->Color.DitherFlag == state) 363 return; 364 FLUSH_VERTICES(ctx, _NEW_COLOR); 365 ctx->Color.DitherFlag = state; 366 break; 367 case GL_FOG: 368 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 369 goto invalid_enum_error; 370 if (ctx->Fog.Enabled == state) 371 return; 372 FLUSH_VERTICES(ctx, _NEW_FOG); 373 ctx->Fog.Enabled = state; 374 break; 375 case GL_LIGHT0: 376 case GL_LIGHT1: 377 case GL_LIGHT2: 378 case GL_LIGHT3: 379 case GL_LIGHT4: 380 case GL_LIGHT5: 381 case GL_LIGHT6: 382 case GL_LIGHT7: 383 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 384 goto invalid_enum_error; 385 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state) 386 return; 387 FLUSH_VERTICES(ctx, _NEW_LIGHT); 388 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state; 389 if (state) { 390 insert_at_tail(&ctx->Light.EnabledList, 391 &ctx->Light.Light[cap-GL_LIGHT0]); 392 } 393 else { 394 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]); 395 } 396 break; 397 case GL_LIGHTING: 398 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 399 goto invalid_enum_error; 400 if (ctx->Light.Enabled == state) 401 return; 402 FLUSH_VERTICES(ctx, _NEW_LIGHT); 403 ctx->Light.Enabled = state; 404 if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) 405 ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; 406 else 407 ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE; 408 break; 409 case GL_LINE_SMOOTH: 410 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 411 goto invalid_enum_error; 412 if (ctx->Line.SmoothFlag == state) 413 return; 414 FLUSH_VERTICES(ctx, _NEW_LINE); 415 ctx->Line.SmoothFlag = state; 416 ctx->_TriangleCaps ^= DD_LINE_SMOOTH; 417 break; 418 case GL_LINE_STIPPLE: 419 if (ctx->API != API_OPENGL) 420 goto invalid_enum_error; 421 if (ctx->Line.StippleFlag == state) 422 return; 423 FLUSH_VERTICES(ctx, _NEW_LINE); 424 ctx->Line.StippleFlag = state; 425 ctx->_TriangleCaps ^= DD_LINE_STIPPLE; 426 break; 427 case GL_INDEX_LOGIC_OP: 428 if (ctx->API != API_OPENGL) 429 goto invalid_enum_error; 430 if (ctx->Color.IndexLogicOpEnabled == state) 431 return; 432 FLUSH_VERTICES(ctx, _NEW_COLOR); 433 ctx->Color.IndexLogicOpEnabled = state; 434 break; 435 case GL_COLOR_LOGIC_OP: 436 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 437 goto invalid_enum_error; 438 if (ctx->Color.ColorLogicOpEnabled == state) 439 return; 440 FLUSH_VERTICES(ctx, _NEW_COLOR); 441 ctx->Color.ColorLogicOpEnabled = state; 442 break; 443 case GL_MAP1_COLOR_4: 444 if (ctx->API != API_OPENGL) 445 goto invalid_enum_error; 446 if (ctx->Eval.Map1Color4 == state) 447 return; 448 FLUSH_VERTICES(ctx, _NEW_EVAL); 449 ctx->Eval.Map1Color4 = state; 450 break; 451 case GL_MAP1_INDEX: 452 if (ctx->API != API_OPENGL) 453 goto invalid_enum_error; 454 if (ctx->Eval.Map1Index == state) 455 return; 456 FLUSH_VERTICES(ctx, _NEW_EVAL); 457 ctx->Eval.Map1Index = state; 458 break; 459 case GL_MAP1_NORMAL: 460 if (ctx->API != API_OPENGL) 461 goto invalid_enum_error; 462 if (ctx->Eval.Map1Normal == state) 463 return; 464 FLUSH_VERTICES(ctx, _NEW_EVAL); 465 ctx->Eval.Map1Normal = state; 466 break; 467 case GL_MAP1_TEXTURE_COORD_1: 468 if (ctx->API != API_OPENGL) 469 goto invalid_enum_error; 470 if (ctx->Eval.Map1TextureCoord1 == state) 471 return; 472 FLUSH_VERTICES(ctx, _NEW_EVAL); 473 ctx->Eval.Map1TextureCoord1 = state; 474 break; 475 case GL_MAP1_TEXTURE_COORD_2: 476 if (ctx->API != API_OPENGL) 477 goto invalid_enum_error; 478 if (ctx->Eval.Map1TextureCoord2 == state) 479 return; 480 FLUSH_VERTICES(ctx, _NEW_EVAL); 481 ctx->Eval.Map1TextureCoord2 = state; 482 break; 483 case GL_MAP1_TEXTURE_COORD_3: 484 if (ctx->API != API_OPENGL) 485 goto invalid_enum_error; 486 if (ctx->Eval.Map1TextureCoord3 == state) 487 return; 488 FLUSH_VERTICES(ctx, _NEW_EVAL); 489 ctx->Eval.Map1TextureCoord3 = state; 490 break; 491 case GL_MAP1_TEXTURE_COORD_4: 492 if (ctx->API != API_OPENGL) 493 goto invalid_enum_error; 494 if (ctx->Eval.Map1TextureCoord4 == state) 495 return; 496 FLUSH_VERTICES(ctx, _NEW_EVAL); 497 ctx->Eval.Map1TextureCoord4 = state; 498 break; 499 case GL_MAP1_VERTEX_3: 500 if (ctx->API != API_OPENGL) 501 goto invalid_enum_error; 502 if (ctx->Eval.Map1Vertex3 == state) 503 return; 504 FLUSH_VERTICES(ctx, _NEW_EVAL); 505 ctx->Eval.Map1Vertex3 = state; 506 break; 507 case GL_MAP1_VERTEX_4: 508 if (ctx->API != API_OPENGL) 509 goto invalid_enum_error; 510 if (ctx->Eval.Map1Vertex4 == state) 511 return; 512 FLUSH_VERTICES(ctx, _NEW_EVAL); 513 ctx->Eval.Map1Vertex4 = state; 514 break; 515 case GL_MAP2_COLOR_4: 516 if (ctx->API != API_OPENGL) 517 goto invalid_enum_error; 518 if (ctx->Eval.Map2Color4 == state) 519 return; 520 FLUSH_VERTICES(ctx, _NEW_EVAL); 521 ctx->Eval.Map2Color4 = state; 522 break; 523 case GL_MAP2_INDEX: 524 if (ctx->API != API_OPENGL) 525 goto invalid_enum_error; 526 if (ctx->Eval.Map2Index == state) 527 return; 528 FLUSH_VERTICES(ctx, _NEW_EVAL); 529 ctx->Eval.Map2Index = state; 530 break; 531 case GL_MAP2_NORMAL: 532 if (ctx->API != API_OPENGL) 533 goto invalid_enum_error; 534 if (ctx->Eval.Map2Normal == state) 535 return; 536 FLUSH_VERTICES(ctx, _NEW_EVAL); 537 ctx->Eval.Map2Normal = state; 538 break; 539 case GL_MAP2_TEXTURE_COORD_1: 540 if (ctx->API != API_OPENGL) 541 goto invalid_enum_error; 542 if (ctx->Eval.Map2TextureCoord1 == state) 543 return; 544 FLUSH_VERTICES(ctx, _NEW_EVAL); 545 ctx->Eval.Map2TextureCoord1 = state; 546 break; 547 case GL_MAP2_TEXTURE_COORD_2: 548 if (ctx->API != API_OPENGL) 549 goto invalid_enum_error; 550 if (ctx->Eval.Map2TextureCoord2 == state) 551 return; 552 FLUSH_VERTICES(ctx, _NEW_EVAL); 553 ctx->Eval.Map2TextureCoord2 = state; 554 break; 555 case GL_MAP2_TEXTURE_COORD_3: 556 if (ctx->API != API_OPENGL) 557 goto invalid_enum_error; 558 if (ctx->Eval.Map2TextureCoord3 == state) 559 return; 560 FLUSH_VERTICES(ctx, _NEW_EVAL); 561 ctx->Eval.Map2TextureCoord3 = state; 562 break; 563 case GL_MAP2_TEXTURE_COORD_4: 564 if (ctx->API != API_OPENGL) 565 goto invalid_enum_error; 566 if (ctx->Eval.Map2TextureCoord4 == state) 567 return; 568 FLUSH_VERTICES(ctx, _NEW_EVAL); 569 ctx->Eval.Map2TextureCoord4 = state; 570 break; 571 case GL_MAP2_VERTEX_3: 572 if (ctx->API != API_OPENGL) 573 goto invalid_enum_error; 574 if (ctx->Eval.Map2Vertex3 == state) 575 return; 576 FLUSH_VERTICES(ctx, _NEW_EVAL); 577 ctx->Eval.Map2Vertex3 = state; 578 break; 579 case GL_MAP2_VERTEX_4: 580 if (ctx->API != API_OPENGL) 581 goto invalid_enum_error; 582 if (ctx->Eval.Map2Vertex4 == state) 583 return; 584 FLUSH_VERTICES(ctx, _NEW_EVAL); 585 ctx->Eval.Map2Vertex4 = state; 586 break; 587 case GL_NORMALIZE: 588 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 589 goto invalid_enum_error; 590 if (ctx->Transform.Normalize == state) 591 return; 592 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 593 ctx->Transform.Normalize = state; 594 break; 595 case GL_POINT_SMOOTH: 596 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 597 goto invalid_enum_error; 598 if (ctx->Point.SmoothFlag == state) 599 return; 600 FLUSH_VERTICES(ctx, _NEW_POINT); 601 ctx->Point.SmoothFlag = state; 602 ctx->_TriangleCaps ^= DD_POINT_SMOOTH; 603 break; 604 case GL_POLYGON_SMOOTH: 605 if (!_mesa_is_desktop_gl(ctx)) 606 goto invalid_enum_error; 607 if (ctx->Polygon.SmoothFlag == state) 608 return; 609 FLUSH_VERTICES(ctx, _NEW_POLYGON); 610 ctx->Polygon.SmoothFlag = state; 611 ctx->_TriangleCaps ^= DD_TRI_SMOOTH; 612 break; 613 case GL_POLYGON_STIPPLE: 614 if (ctx->API != API_OPENGL) 615 goto invalid_enum_error; 616 if (ctx->Polygon.StippleFlag == state) 617 return; 618 FLUSH_VERTICES(ctx, _NEW_POLYGON); 619 ctx->Polygon.StippleFlag = state; 620 ctx->_TriangleCaps ^= DD_TRI_STIPPLE; 621 break; 622 case GL_POLYGON_OFFSET_POINT: 623 if (!_mesa_is_desktop_gl(ctx)) 624 goto invalid_enum_error; 625 if (ctx->Polygon.OffsetPoint == state) 626 return; 627 FLUSH_VERTICES(ctx, _NEW_POLYGON); 628 ctx->Polygon.OffsetPoint = state; 629 break; 630 case GL_POLYGON_OFFSET_LINE: 631 if (!_mesa_is_desktop_gl(ctx)) 632 goto invalid_enum_error; 633 if (ctx->Polygon.OffsetLine == state) 634 return; 635 FLUSH_VERTICES(ctx, _NEW_POLYGON); 636 ctx->Polygon.OffsetLine = state; 637 break; 638 case GL_POLYGON_OFFSET_FILL: 639 if (ctx->Polygon.OffsetFill == state) 640 return; 641 FLUSH_VERTICES(ctx, _NEW_POLYGON); 642 ctx->Polygon.OffsetFill = state; 643 break; 644 case GL_RESCALE_NORMAL_EXT: 645 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 646 goto invalid_enum_error; 647 if (ctx->Transform.RescaleNormals == state) 648 return; 649 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 650 ctx->Transform.RescaleNormals = state; 651 break; 652 case GL_SCISSOR_TEST: 653 if (ctx->Scissor.Enabled == state) 654 return; 655 FLUSH_VERTICES(ctx, _NEW_SCISSOR); 656 ctx->Scissor.Enabled = state; 657 break; 658 case GL_STENCIL_TEST: 659 if (ctx->Stencil.Enabled == state) 660 return; 661 FLUSH_VERTICES(ctx, _NEW_STENCIL); 662 ctx->Stencil.Enabled = state; 663 break; 664 case GL_TEXTURE_1D: 665 if (ctx->API != API_OPENGL) 666 goto invalid_enum_error; 667 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) { 668 return; 669 } 670 break; 671 case GL_TEXTURE_2D: 672 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 673 goto invalid_enum_error; 674 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) { 675 return; 676 } 677 break; 678 case GL_TEXTURE_3D: 679 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 680 goto invalid_enum_error; 681 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) { 682 return; 683 } 684 break; 685 case GL_TEXTURE_GEN_S: 686 case GL_TEXTURE_GEN_T: 687 case GL_TEXTURE_GEN_R: 688 case GL_TEXTURE_GEN_Q: 689 { 690 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 691 692 if (ctx->API != API_OPENGL) 693 goto invalid_enum_error; 694 695 if (texUnit) { 696 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); 697 GLbitfield newenabled = texUnit->TexGenEnabled & ~coordBit; 698 if (state) 699 newenabled |= coordBit; 700 if (texUnit->TexGenEnabled == newenabled) 701 return; 702 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 703 texUnit->TexGenEnabled = newenabled; 704 } 705 } 706 break; 707 708#if FEATURE_ES1 709 case GL_TEXTURE_GEN_STR_OES: 710 /* disable S, T, and R at the same time */ 711 { 712 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 713 714 if (ctx->API != API_OPENGLES) 715 goto invalid_enum_error; 716 717 if (texUnit) { 718 GLuint newenabled = 719 texUnit->TexGenEnabled & ~STR_BITS; 720 if (state) 721 newenabled |= STR_BITS; 722 if (texUnit->TexGenEnabled == newenabled) 723 return; 724 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 725 texUnit->TexGenEnabled = newenabled; 726 } 727 } 728 break; 729#endif 730 731 /* client-side state */ 732 case GL_VERTEX_ARRAY: 733 case GL_NORMAL_ARRAY: 734 case GL_COLOR_ARRAY: 735 case GL_INDEX_ARRAY: 736 case GL_TEXTURE_COORD_ARRAY: 737 case GL_EDGE_FLAG_ARRAY: 738 case GL_FOG_COORDINATE_ARRAY_EXT: 739 case GL_SECONDARY_COLOR_ARRAY_EXT: 740 case GL_POINT_SIZE_ARRAY_OES: 741 client_state( ctx, cap, state ); 742 return; 743 744 /* GL_ARB_texture_cube_map */ 745 case GL_TEXTURE_CUBE_MAP_ARB: 746 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 747 goto invalid_enum_error; 748 CHECK_EXTENSION(ARB_texture_cube_map, cap); 749 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) { 750 return; 751 } 752 break; 753 754 /* GL_EXT_secondary_color */ 755 case GL_COLOR_SUM_EXT: 756 if (ctx->API != API_OPENGL) 757 goto invalid_enum_error; 758 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap); 759 if (ctx->Fog.ColorSumEnabled == state) 760 return; 761 FLUSH_VERTICES(ctx, _NEW_FOG); 762 ctx->Fog.ColorSumEnabled = state; 763 break; 764 765 /* GL_ARB_multisample */ 766 case GL_MULTISAMPLE_ARB: 767 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 768 goto invalid_enum_error; 769 if (ctx->Multisample.Enabled == state) 770 return; 771 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 772 ctx->Multisample.Enabled = state; 773 break; 774 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: 775 if (ctx->Multisample.SampleAlphaToCoverage == state) 776 return; 777 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 778 ctx->Multisample.SampleAlphaToCoverage = state; 779 break; 780 case GL_SAMPLE_ALPHA_TO_ONE_ARB: 781 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 782 goto invalid_enum_error; 783 if (ctx->Multisample.SampleAlphaToOne == state) 784 return; 785 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 786 ctx->Multisample.SampleAlphaToOne = state; 787 break; 788 case GL_SAMPLE_COVERAGE_ARB: 789 if (ctx->Multisample.SampleCoverage == state) 790 return; 791 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 792 ctx->Multisample.SampleCoverage = state; 793 break; 794 case GL_SAMPLE_COVERAGE_INVERT_ARB: 795 if (!_mesa_is_desktop_gl(ctx)) 796 goto invalid_enum_error; 797 if (ctx->Multisample.SampleCoverageInvert == state) 798 return; 799 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 800 ctx->Multisample.SampleCoverageInvert = state; 801 break; 802 803 /* GL_IBM_rasterpos_clip */ 804 case GL_RASTER_POSITION_UNCLIPPED_IBM: 805 if (ctx->API != API_OPENGL) 806 goto invalid_enum_error; 807 CHECK_EXTENSION(IBM_rasterpos_clip, cap); 808 if (ctx->Transform.RasterPositionUnclipped == state) 809 return; 810 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 811 ctx->Transform.RasterPositionUnclipped = state; 812 break; 813 814 /* GL_NV_point_sprite */ 815 case GL_POINT_SPRITE_NV: 816 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 817 goto invalid_enum_error; 818 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap); 819 if (ctx->Point.PointSprite == state) 820 return; 821 FLUSH_VERTICES(ctx, _NEW_POINT); 822 ctx->Point.PointSprite = state; 823 break; 824 825#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program 826 case GL_VERTEX_PROGRAM_ARB: 827 if (ctx->API != API_OPENGL) 828 goto invalid_enum_error; 829 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 830 if (ctx->VertexProgram.Enabled == state) 831 return; 832 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 833 ctx->VertexProgram.Enabled = state; 834 break; 835 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: 836 /* This was added with ARB_vertex_program, but it is also used with 837 * GLSL vertex shaders on desktop. 838 */ 839 if (!_mesa_is_desktop_gl(ctx)) 840 goto invalid_enum_error; 841 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 842 if (ctx->VertexProgram.PointSizeEnabled == state) 843 return; 844 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 845 ctx->VertexProgram.PointSizeEnabled = state; 846 break; 847 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: 848 if (ctx->API != API_OPENGL) 849 goto invalid_enum_error; 850 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 851 if (ctx->VertexProgram.TwoSideEnabled == state) 852 return; 853 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 854 ctx->VertexProgram.TwoSideEnabled = state; 855 break; 856#endif 857#if FEATURE_NV_vertex_program 858 case GL_MAP1_VERTEX_ATTRIB0_4_NV: 859 case GL_MAP1_VERTEX_ATTRIB1_4_NV: 860 case GL_MAP1_VERTEX_ATTRIB2_4_NV: 861 case GL_MAP1_VERTEX_ATTRIB3_4_NV: 862 case GL_MAP1_VERTEX_ATTRIB4_4_NV: 863 case GL_MAP1_VERTEX_ATTRIB5_4_NV: 864 case GL_MAP1_VERTEX_ATTRIB6_4_NV: 865 case GL_MAP1_VERTEX_ATTRIB7_4_NV: 866 case GL_MAP1_VERTEX_ATTRIB8_4_NV: 867 case GL_MAP1_VERTEX_ATTRIB9_4_NV: 868 case GL_MAP1_VERTEX_ATTRIB10_4_NV: 869 case GL_MAP1_VERTEX_ATTRIB11_4_NV: 870 case GL_MAP1_VERTEX_ATTRIB12_4_NV: 871 case GL_MAP1_VERTEX_ATTRIB13_4_NV: 872 case GL_MAP1_VERTEX_ATTRIB14_4_NV: 873 case GL_MAP1_VERTEX_ATTRIB15_4_NV: 874 if (ctx->API != API_OPENGL) 875 goto invalid_enum_error; 876 CHECK_EXTENSION(NV_vertex_program, cap); 877 { 878 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); 879 FLUSH_VERTICES(ctx, _NEW_EVAL); 880 ctx->Eval.Map1Attrib[map] = state; 881 } 882 break; 883 case GL_MAP2_VERTEX_ATTRIB0_4_NV: 884 case GL_MAP2_VERTEX_ATTRIB1_4_NV: 885 case GL_MAP2_VERTEX_ATTRIB2_4_NV: 886 case GL_MAP2_VERTEX_ATTRIB3_4_NV: 887 case GL_MAP2_VERTEX_ATTRIB4_4_NV: 888 case GL_MAP2_VERTEX_ATTRIB5_4_NV: 889 case GL_MAP2_VERTEX_ATTRIB6_4_NV: 890 case GL_MAP2_VERTEX_ATTRIB7_4_NV: 891 case GL_MAP2_VERTEX_ATTRIB8_4_NV: 892 case GL_MAP2_VERTEX_ATTRIB9_4_NV: 893 case GL_MAP2_VERTEX_ATTRIB10_4_NV: 894 case GL_MAP2_VERTEX_ATTRIB11_4_NV: 895 case GL_MAP2_VERTEX_ATTRIB12_4_NV: 896 case GL_MAP2_VERTEX_ATTRIB13_4_NV: 897 case GL_MAP2_VERTEX_ATTRIB14_4_NV: 898 case GL_MAP2_VERTEX_ATTRIB15_4_NV: 899 if (ctx->API != API_OPENGL) 900 goto invalid_enum_error; 901 CHECK_EXTENSION(NV_vertex_program, cap); 902 { 903 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); 904 FLUSH_VERTICES(ctx, _NEW_EVAL); 905 ctx->Eval.Map2Attrib[map] = state; 906 } 907 break; 908#endif /* FEATURE_NV_vertex_program */ 909 910#if FEATURE_NV_fragment_program 911 case GL_FRAGMENT_PROGRAM_NV: 912 if (ctx->API != API_OPENGL) 913 goto invalid_enum_error; 914 CHECK_EXTENSION(NV_fragment_program, cap); 915 if (ctx->FragmentProgram.Enabled == state) 916 return; 917 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 918 ctx->FragmentProgram.Enabled = state; 919 break; 920#endif /* FEATURE_NV_fragment_program */ 921 922 /* GL_NV_texture_rectangle */ 923 case GL_TEXTURE_RECTANGLE_NV: 924 if (ctx->API != API_OPENGL) 925 goto invalid_enum_error; 926 CHECK_EXTENSION(NV_texture_rectangle, cap); 927 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) { 928 return; 929 } 930 break; 931 932 /* GL_EXT_stencil_two_side */ 933 case GL_STENCIL_TEST_TWO_SIDE_EXT: 934 if (ctx->API != API_OPENGL) 935 goto invalid_enum_error; 936 CHECK_EXTENSION(EXT_stencil_two_side, cap); 937 if (ctx->Stencil.TestTwoSide == state) 938 return; 939 FLUSH_VERTICES(ctx, _NEW_STENCIL); 940 ctx->Stencil.TestTwoSide = state; 941 if (state) { 942 ctx->Stencil._BackFace = 2; 943 } else { 944 ctx->Stencil._BackFace = 1; 945 } 946 break; 947 948#if FEATURE_ARB_fragment_program 949 case GL_FRAGMENT_PROGRAM_ARB: 950 if (ctx->API != API_OPENGL) 951 goto invalid_enum_error; 952 CHECK_EXTENSION(ARB_fragment_program, cap); 953 if (ctx->FragmentProgram.Enabled == state) 954 return; 955 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 956 ctx->FragmentProgram.Enabled = state; 957 break; 958#endif /* FEATURE_ARB_fragment_program */ 959 960 /* GL_EXT_depth_bounds_test */ 961 case GL_DEPTH_BOUNDS_TEST_EXT: 962 if (!_mesa_is_desktop_gl(ctx)) 963 goto invalid_enum_error; 964 CHECK_EXTENSION(EXT_depth_bounds_test, cap); 965 if (ctx->Depth.BoundsTest == state) 966 return; 967 FLUSH_VERTICES(ctx, _NEW_DEPTH); 968 ctx->Depth.BoundsTest = state; 969 break; 970 971 case GL_DEPTH_CLAMP: 972 if (!_mesa_is_desktop_gl(ctx)) 973 goto invalid_enum_error; 974 CHECK_EXTENSION(ARB_depth_clamp, cap); 975 if (ctx->Transform.DepthClamp == state) 976 return; 977 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 978 ctx->Transform.DepthClamp = state; 979 break; 980 981#if FEATURE_ATI_fragment_shader 982 case GL_FRAGMENT_SHADER_ATI: 983 if (ctx->API != API_OPENGL) 984 goto invalid_enum_error; 985 CHECK_EXTENSION(ATI_fragment_shader, cap); 986 if (ctx->ATIFragmentShader.Enabled == state) 987 return; 988 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 989 ctx->ATIFragmentShader.Enabled = state; 990 break; 991#endif 992 993 /* GL_MESA_texture_array */ 994 case GL_TEXTURE_1D_ARRAY_EXT: 995 if (ctx->API != API_OPENGL) 996 goto invalid_enum_error; 997 CHECK_EXTENSION(MESA_texture_array, cap); 998 if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) { 999 return; 1000 } 1001 break; 1002 1003 case GL_TEXTURE_2D_ARRAY_EXT: 1004 if (ctx->API != API_OPENGL) 1005 goto invalid_enum_error; 1006 CHECK_EXTENSION(MESA_texture_array, cap); 1007 if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) { 1008 return; 1009 } 1010 break; 1011 1012 case GL_TEXTURE_CUBE_MAP_SEAMLESS: 1013 if (!_mesa_is_desktop_gl(ctx)) 1014 goto invalid_enum_error; 1015 CHECK_EXTENSION(ARB_seamless_cube_map, cap); 1016 if (ctx->Texture.CubeMapSeamless != state) { 1017 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 1018 ctx->Texture.CubeMapSeamless = state; 1019 } 1020 break; 1021 1022#if FEATURE_EXT_transform_feedback 1023 case GL_RASTERIZER_DISCARD: 1024 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1025 goto invalid_enum_error; 1026 CHECK_EXTENSION(EXT_transform_feedback, cap); 1027 if (ctx->RasterDiscard != state) { 1028 FLUSH_VERTICES(ctx, _NEW_RASTERIZER_DISCARD); 1029 ctx->RasterDiscard = state; 1030 } 1031 break; 1032#endif 1033 1034 /* GL 3.1 primitive restart. Note: this enum is different from 1035 * GL_PRIMITIVE_RESTART_NV (which is client state). 1036 */ 1037 case GL_PRIMITIVE_RESTART: 1038 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { 1039 goto invalid_enum_error; 1040 } 1041 if (ctx->Array.PrimitiveRestart != state) { 1042 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 1043 ctx->Array.PrimitiveRestart = state; 1044 } 1045 break; 1046 1047 /* GL3.0 - GL_framebuffer_sRGB */ 1048 case GL_FRAMEBUFFER_SRGB_EXT: 1049 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1050 goto invalid_enum_error; 1051 CHECK_EXTENSION(EXT_framebuffer_sRGB, cap); 1052 FLUSH_VERTICES(ctx, _NEW_BUFFERS); 1053 ctx->Color.sRGBEnabled = state; 1054 break; 1055 1056 /* GL_OES_EGL_image_external */ 1057 case GL_TEXTURE_EXTERNAL_OES: 1058 if (!_mesa_is_gles(ctx)) 1059 goto invalid_enum_error; 1060 CHECK_EXTENSION(OES_EGL_image_external, cap); 1061 if (!enable_texture(ctx, state, TEXTURE_EXTERNAL_BIT)) { 1062 return; 1063 } 1064 break; 1065 1066 default: 1067 goto invalid_enum_error; 1068 } 1069 1070 if (ctx->Driver.Enable) { 1071 ctx->Driver.Enable( ctx, cap, state ); 1072 } 1073 1074 return; 1075 1076invalid_enum_error: 1077 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(%s)", 1078 state ? "Enable" : "Disable", _mesa_lookup_enum_by_nr(cap)); 1079} 1080 1081 1082/** 1083 * Enable GL capability. Called by glEnable() 1084 * \param cap state to enable. 1085 */ 1086void GLAPIENTRY 1087_mesa_Enable( GLenum cap ) 1088{ 1089 GET_CURRENT_CONTEXT(ctx); 1090 ASSERT_OUTSIDE_BEGIN_END(ctx); 1091 1092 _mesa_set_enable( ctx, cap, GL_TRUE ); 1093} 1094 1095 1096/** 1097 * Disable GL capability. Called by glDisable() 1098 * \param cap state to disable. 1099 */ 1100void GLAPIENTRY 1101_mesa_Disable( GLenum cap ) 1102{ 1103 GET_CURRENT_CONTEXT(ctx); 1104 ASSERT_OUTSIDE_BEGIN_END(ctx); 1105 1106 _mesa_set_enable( ctx, cap, GL_FALSE ); 1107} 1108 1109 1110 1111/** 1112 * Enable/disable an indexed state var. 1113 */ 1114void 1115_mesa_set_enablei(struct gl_context *ctx, GLenum cap, 1116 GLuint index, GLboolean state) 1117{ 1118 ASSERT(state == 0 || state == 1); 1119 switch (cap) { 1120 case GL_BLEND: 1121 if (!ctx->Extensions.EXT_draw_buffers2) { 1122 goto invalid_enum_error; 1123 } 1124 if (index >= ctx->Const.MaxDrawBuffers) { 1125 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", 1126 state ? "glEnableIndexed" : "glDisableIndexed", index); 1127 return; 1128 } 1129 if (((ctx->Color.BlendEnabled >> index) & 1) != state) { 1130 FLUSH_VERTICES(ctx, _NEW_COLOR); 1131 if (state) 1132 ctx->Color.BlendEnabled |= (1 << index); 1133 else 1134 ctx->Color.BlendEnabled &= ~(1 << index); 1135 } 1136 break; 1137 default: 1138 goto invalid_enum_error; 1139 } 1140 return; 1141 1142invalid_enum_error: 1143 _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)", 1144 state ? "glEnablei" : "glDisablei", 1145 _mesa_lookup_enum_by_nr(cap)); 1146} 1147 1148 1149void GLAPIENTRY 1150_mesa_DisableIndexed( GLenum cap, GLuint index ) 1151{ 1152 GET_CURRENT_CONTEXT(ctx); 1153 ASSERT_OUTSIDE_BEGIN_END(ctx); 1154 _mesa_set_enablei(ctx, cap, index, GL_FALSE); 1155} 1156 1157 1158void GLAPIENTRY 1159_mesa_EnableIndexed( GLenum cap, GLuint index ) 1160{ 1161 GET_CURRENT_CONTEXT(ctx); 1162 ASSERT_OUTSIDE_BEGIN_END(ctx); 1163 _mesa_set_enablei(ctx, cap, index, GL_TRUE); 1164} 1165 1166 1167GLboolean GLAPIENTRY 1168_mesa_IsEnabledIndexed( GLenum cap, GLuint index ) 1169{ 1170 GET_CURRENT_CONTEXT(ctx); 1171 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); 1172 switch (cap) { 1173 case GL_BLEND: 1174 if (index >= ctx->Const.MaxDrawBuffers) { 1175 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)", 1176 index); 1177 return GL_FALSE; 1178 } 1179 return (ctx->Color.BlendEnabled >> index) & 1; 1180 default: 1181 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)", 1182 _mesa_lookup_enum_by_nr(cap)); 1183 return GL_FALSE; 1184 } 1185} 1186 1187 1188 1189 1190#undef CHECK_EXTENSION 1191#define CHECK_EXTENSION(EXTNAME) \ 1192 if (!ctx->Extensions.EXTNAME) { \ 1193 goto invalid_enum_error; \ 1194 } 1195 1196#undef CHECK_EXTENSION2 1197#define CHECK_EXTENSION2(EXT1, EXT2) \ 1198 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ 1199 goto invalid_enum_error; \ 1200 } 1201 1202 1203/** 1204 * Helper function to determine whether a texture target is enabled. 1205 */ 1206static GLboolean 1207is_texture_enabled(struct gl_context *ctx, GLbitfield bit) 1208{ 1209 const struct gl_texture_unit *const texUnit = 1210 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1211 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE; 1212} 1213 1214 1215/** 1216 * Return simple enable/disable state. 1217 * 1218 * \param cap state variable to query. 1219 * 1220 * Returns the state of the specified capability from the current GL context. 1221 * For the capabilities associated with extensions verifies that those 1222 * extensions are effectively present before reporting. 1223 */ 1224GLboolean GLAPIENTRY 1225_mesa_IsEnabled( GLenum cap ) 1226{ 1227 GET_CURRENT_CONTEXT(ctx); 1228 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); 1229 1230 switch (cap) { 1231 case GL_ALPHA_TEST: 1232 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1233 goto invalid_enum_error; 1234 return ctx->Color.AlphaEnabled; 1235 case GL_AUTO_NORMAL: 1236 if (ctx->API != API_OPENGL) 1237 goto invalid_enum_error; 1238 return ctx->Eval.AutoNormal; 1239 case GL_BLEND: 1240 return ctx->Color.BlendEnabled & 1; /* return state for buffer[0] */ 1241 case GL_CLIP_DISTANCE0: 1242 case GL_CLIP_DISTANCE1: 1243 case GL_CLIP_DISTANCE2: 1244 case GL_CLIP_DISTANCE3: 1245 case GL_CLIP_DISTANCE4: 1246 case GL_CLIP_DISTANCE5: 1247 case GL_CLIP_DISTANCE6: 1248 case GL_CLIP_DISTANCE7: { 1249 const GLuint p = cap - GL_CLIP_DISTANCE0; 1250 1251 if (p >= ctx->Const.MaxClipPlanes) 1252 goto invalid_enum_error; 1253 1254 return (ctx->Transform.ClipPlanesEnabled >> p) & 1; 1255 } 1256 case GL_COLOR_MATERIAL: 1257 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1258 goto invalid_enum_error; 1259 return ctx->Light.ColorMaterialEnabled; 1260 case GL_CULL_FACE: 1261 return ctx->Polygon.CullFlag; 1262 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: 1263 if (!_mesa_is_desktop_gl(ctx)) 1264 goto invalid_enum_error; 1265 return ctx->Debug.SyncOutput; 1266 case GL_DEPTH_TEST: 1267 return ctx->Depth.Test; 1268 case GL_DITHER: 1269 return ctx->Color.DitherFlag; 1270 case GL_FOG: 1271 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1272 goto invalid_enum_error; 1273 return ctx->Fog.Enabled; 1274 case GL_LIGHTING: 1275 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1276 goto invalid_enum_error; 1277 return ctx->Light.Enabled; 1278 case GL_LIGHT0: 1279 case GL_LIGHT1: 1280 case GL_LIGHT2: 1281 case GL_LIGHT3: 1282 case GL_LIGHT4: 1283 case GL_LIGHT5: 1284 case GL_LIGHT6: 1285 case GL_LIGHT7: 1286 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1287 goto invalid_enum_error; 1288 return ctx->Light.Light[cap-GL_LIGHT0].Enabled; 1289 case GL_LINE_SMOOTH: 1290 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1291 goto invalid_enum_error; 1292 return ctx->Line.SmoothFlag; 1293 case GL_LINE_STIPPLE: 1294 if (ctx->API != API_OPENGL) 1295 goto invalid_enum_error; 1296 return ctx->Line.StippleFlag; 1297 case GL_INDEX_LOGIC_OP: 1298 if (ctx->API != API_OPENGL) 1299 goto invalid_enum_error; 1300 return ctx->Color.IndexLogicOpEnabled; 1301 case GL_COLOR_LOGIC_OP: 1302 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1303 goto invalid_enum_error; 1304 return ctx->Color.ColorLogicOpEnabled; 1305 case GL_MAP1_COLOR_4: 1306 if (ctx->API != API_OPENGL) 1307 goto invalid_enum_error; 1308 return ctx->Eval.Map1Color4; 1309 case GL_MAP1_INDEX: 1310 if (ctx->API != API_OPENGL) 1311 goto invalid_enum_error; 1312 return ctx->Eval.Map1Index; 1313 case GL_MAP1_NORMAL: 1314 if (ctx->API != API_OPENGL) 1315 goto invalid_enum_error; 1316 return ctx->Eval.Map1Normal; 1317 case GL_MAP1_TEXTURE_COORD_1: 1318 if (ctx->API != API_OPENGL) 1319 goto invalid_enum_error; 1320 return ctx->Eval.Map1TextureCoord1; 1321 case GL_MAP1_TEXTURE_COORD_2: 1322 if (ctx->API != API_OPENGL) 1323 goto invalid_enum_error; 1324 return ctx->Eval.Map1TextureCoord2; 1325 case GL_MAP1_TEXTURE_COORD_3: 1326 if (ctx->API != API_OPENGL) 1327 goto invalid_enum_error; 1328 return ctx->Eval.Map1TextureCoord3; 1329 case GL_MAP1_TEXTURE_COORD_4: 1330 if (ctx->API != API_OPENGL) 1331 goto invalid_enum_error; 1332 return ctx->Eval.Map1TextureCoord4; 1333 case GL_MAP1_VERTEX_3: 1334 if (ctx->API != API_OPENGL) 1335 goto invalid_enum_error; 1336 return ctx->Eval.Map1Vertex3; 1337 case GL_MAP1_VERTEX_4: 1338 if (ctx->API != API_OPENGL) 1339 goto invalid_enum_error; 1340 return ctx->Eval.Map1Vertex4; 1341 case GL_MAP2_COLOR_4: 1342 if (ctx->API != API_OPENGL) 1343 goto invalid_enum_error; 1344 return ctx->Eval.Map2Color4; 1345 case GL_MAP2_INDEX: 1346 if (ctx->API != API_OPENGL) 1347 goto invalid_enum_error; 1348 return ctx->Eval.Map2Index; 1349 case GL_MAP2_NORMAL: 1350 if (ctx->API != API_OPENGL) 1351 goto invalid_enum_error; 1352 return ctx->Eval.Map2Normal; 1353 case GL_MAP2_TEXTURE_COORD_1: 1354 if (ctx->API != API_OPENGL) 1355 goto invalid_enum_error; 1356 return ctx->Eval.Map2TextureCoord1; 1357 case GL_MAP2_TEXTURE_COORD_2: 1358 if (ctx->API != API_OPENGL) 1359 goto invalid_enum_error; 1360 return ctx->Eval.Map2TextureCoord2; 1361 case GL_MAP2_TEXTURE_COORD_3: 1362 if (ctx->API != API_OPENGL) 1363 goto invalid_enum_error; 1364 return ctx->Eval.Map2TextureCoord3; 1365 case GL_MAP2_TEXTURE_COORD_4: 1366 if (ctx->API != API_OPENGL) 1367 goto invalid_enum_error; 1368 return ctx->Eval.Map2TextureCoord4; 1369 case GL_MAP2_VERTEX_3: 1370 if (ctx->API != API_OPENGL) 1371 goto invalid_enum_error; 1372 return ctx->Eval.Map2Vertex3; 1373 case GL_MAP2_VERTEX_4: 1374 if (ctx->API != API_OPENGL) 1375 goto invalid_enum_error; 1376 return ctx->Eval.Map2Vertex4; 1377 case GL_NORMALIZE: 1378 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1379 goto invalid_enum_error; 1380 return ctx->Transform.Normalize; 1381 case GL_POINT_SMOOTH: 1382 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1383 goto invalid_enum_error; 1384 return ctx->Point.SmoothFlag; 1385 case GL_POLYGON_SMOOTH: 1386 if (!_mesa_is_desktop_gl(ctx)) 1387 goto invalid_enum_error; 1388 return ctx->Polygon.SmoothFlag; 1389 case GL_POLYGON_STIPPLE: 1390 if (ctx->API != API_OPENGL) 1391 goto invalid_enum_error; 1392 return ctx->Polygon.StippleFlag; 1393 case GL_POLYGON_OFFSET_POINT: 1394 if (!_mesa_is_desktop_gl(ctx)) 1395 goto invalid_enum_error; 1396 return ctx->Polygon.OffsetPoint; 1397 case GL_POLYGON_OFFSET_LINE: 1398 if (!_mesa_is_desktop_gl(ctx)) 1399 goto invalid_enum_error; 1400 return ctx->Polygon.OffsetLine; 1401 case GL_POLYGON_OFFSET_FILL: 1402 return ctx->Polygon.OffsetFill; 1403 case GL_RESCALE_NORMAL_EXT: 1404 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1405 goto invalid_enum_error; 1406 return ctx->Transform.RescaleNormals; 1407 case GL_SCISSOR_TEST: 1408 return ctx->Scissor.Enabled; 1409 case GL_STENCIL_TEST: 1410 return ctx->Stencil.Enabled; 1411 case GL_TEXTURE_1D: 1412 if (ctx->API != API_OPENGL) 1413 goto invalid_enum_error; 1414 return is_texture_enabled(ctx, TEXTURE_1D_BIT); 1415 case GL_TEXTURE_2D: 1416 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1417 goto invalid_enum_error; 1418 return is_texture_enabled(ctx, TEXTURE_2D_BIT); 1419 case GL_TEXTURE_3D: 1420 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1421 goto invalid_enum_error; 1422 return is_texture_enabled(ctx, TEXTURE_3D_BIT); 1423 case GL_TEXTURE_GEN_S: 1424 case GL_TEXTURE_GEN_T: 1425 case GL_TEXTURE_GEN_R: 1426 case GL_TEXTURE_GEN_Q: 1427 { 1428 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 1429 1430 if (ctx->API != API_OPENGL) 1431 goto invalid_enum_error; 1432 1433 if (texUnit) { 1434 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); 1435 return (texUnit->TexGenEnabled & coordBit) ? GL_TRUE : GL_FALSE; 1436 } 1437 } 1438 return GL_FALSE; 1439#if FEATURE_ES1 1440 case GL_TEXTURE_GEN_STR_OES: 1441 { 1442 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 1443 1444 if (ctx->API != API_OPENGLES) 1445 goto invalid_enum_error; 1446 1447 if (texUnit) { 1448 return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS 1449 ? GL_TRUE : GL_FALSE; 1450 } 1451 } 1452#endif 1453 1454 /* client-side state */ 1455 case GL_VERTEX_ARRAY: 1456 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1457 goto invalid_enum_error; 1458 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled != 0); 1459 case GL_NORMAL_ARRAY: 1460 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1461 goto invalid_enum_error; 1462 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled != 0); 1463 case GL_COLOR_ARRAY: 1464 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1465 goto invalid_enum_error; 1466 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled != 0); 1467 case GL_INDEX_ARRAY: 1468 if (ctx->API != API_OPENGL) 1469 goto invalid_enum_error; 1470 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled != 0); 1471 case GL_TEXTURE_COORD_ARRAY: 1472 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1473 goto invalid_enum_error; 1474 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)] 1475 .Enabled != 0); 1476 case GL_EDGE_FLAG_ARRAY: 1477 if (ctx->API != API_OPENGL) 1478 goto invalid_enum_error; 1479 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled != 0); 1480 case GL_FOG_COORDINATE_ARRAY_EXT: 1481 if (ctx->API != API_OPENGL) 1482 goto invalid_enum_error; 1483 CHECK_EXTENSION(EXT_fog_coord); 1484 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled != 0); 1485 case GL_SECONDARY_COLOR_ARRAY_EXT: 1486 if (ctx->API != API_OPENGL) 1487 goto invalid_enum_error; 1488 CHECK_EXTENSION(EXT_secondary_color); 1489 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled != 0); 1490#if FEATURE_point_size_array 1491 case GL_POINT_SIZE_ARRAY_OES: 1492 if (ctx->API != API_OPENGLES) 1493 goto invalid_enum_error; 1494 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled != 0); 1495#endif 1496 1497 /* GL_ARB_texture_cube_map */ 1498 case GL_TEXTURE_CUBE_MAP_ARB: 1499 CHECK_EXTENSION(ARB_texture_cube_map); 1500 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT); 1501 1502 /* GL_EXT_secondary_color */ 1503 case GL_COLOR_SUM_EXT: 1504 if (ctx->API != API_OPENGL) 1505 goto invalid_enum_error; 1506 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program); 1507 return ctx->Fog.ColorSumEnabled; 1508 1509 /* GL_ARB_multisample */ 1510 case GL_MULTISAMPLE_ARB: 1511 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1512 goto invalid_enum_error; 1513 return ctx->Multisample.Enabled; 1514 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: 1515 return ctx->Multisample.SampleAlphaToCoverage; 1516 case GL_SAMPLE_ALPHA_TO_ONE_ARB: 1517 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1518 goto invalid_enum_error; 1519 return ctx->Multisample.SampleAlphaToOne; 1520 case GL_SAMPLE_COVERAGE_ARB: 1521 return ctx->Multisample.SampleCoverage; 1522 case GL_SAMPLE_COVERAGE_INVERT_ARB: 1523 if (!_mesa_is_desktop_gl(ctx)) 1524 goto invalid_enum_error; 1525 return ctx->Multisample.SampleCoverageInvert; 1526 1527 /* GL_IBM_rasterpos_clip */ 1528 case GL_RASTER_POSITION_UNCLIPPED_IBM: 1529 if (ctx->API != API_OPENGL) 1530 goto invalid_enum_error; 1531 CHECK_EXTENSION(IBM_rasterpos_clip); 1532 return ctx->Transform.RasterPositionUnclipped; 1533 1534 /* GL_NV_point_sprite */ 1535 case GL_POINT_SPRITE_NV: 1536 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1537 goto invalid_enum_error; 1538 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite) 1539 return ctx->Point.PointSprite; 1540 1541#if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program 1542 case GL_VERTEX_PROGRAM_ARB: 1543 if (ctx->API != API_OPENGL) 1544 goto invalid_enum_error; 1545 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1546 return ctx->VertexProgram.Enabled; 1547 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: 1548 /* This was added with ARB_vertex_program, but it is also used with 1549 * GLSL vertex shaders on desktop. 1550 */ 1551 if (!_mesa_is_desktop_gl(ctx)) 1552 goto invalid_enum_error; 1553 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1554 return ctx->VertexProgram.PointSizeEnabled; 1555 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: 1556 if (ctx->API != API_OPENGL) 1557 goto invalid_enum_error; 1558 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1559 return ctx->VertexProgram.TwoSideEnabled; 1560#endif 1561#if FEATURE_NV_vertex_program 1562 case GL_VERTEX_ATTRIB_ARRAY0_NV: 1563 case GL_VERTEX_ATTRIB_ARRAY1_NV: 1564 case GL_VERTEX_ATTRIB_ARRAY2_NV: 1565 case GL_VERTEX_ATTRIB_ARRAY3_NV: 1566 case GL_VERTEX_ATTRIB_ARRAY4_NV: 1567 case GL_VERTEX_ATTRIB_ARRAY5_NV: 1568 case GL_VERTEX_ATTRIB_ARRAY6_NV: 1569 case GL_VERTEX_ATTRIB_ARRAY7_NV: 1570 case GL_VERTEX_ATTRIB_ARRAY8_NV: 1571 case GL_VERTEX_ATTRIB_ARRAY9_NV: 1572 case GL_VERTEX_ATTRIB_ARRAY10_NV: 1573 case GL_VERTEX_ATTRIB_ARRAY11_NV: 1574 case GL_VERTEX_ATTRIB_ARRAY12_NV: 1575 case GL_VERTEX_ATTRIB_ARRAY13_NV: 1576 case GL_VERTEX_ATTRIB_ARRAY14_NV: 1577 case GL_VERTEX_ATTRIB_ARRAY15_NV: 1578 if (ctx->API != API_OPENGL) 1579 goto invalid_enum_error; 1580 CHECK_EXTENSION(NV_vertex_program); 1581 { 1582 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; 1583 ASSERT(VERT_ATTRIB_GENERIC(n) < Elements(ctx->Array.ArrayObj->VertexAttrib)); 1584 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(n)].Enabled != 0); 1585 } 1586 case GL_MAP1_VERTEX_ATTRIB0_4_NV: 1587 case GL_MAP1_VERTEX_ATTRIB1_4_NV: 1588 case GL_MAP1_VERTEX_ATTRIB2_4_NV: 1589 case GL_MAP1_VERTEX_ATTRIB3_4_NV: 1590 case GL_MAP1_VERTEX_ATTRIB4_4_NV: 1591 case GL_MAP1_VERTEX_ATTRIB5_4_NV: 1592 case GL_MAP1_VERTEX_ATTRIB6_4_NV: 1593 case GL_MAP1_VERTEX_ATTRIB7_4_NV: 1594 case GL_MAP1_VERTEX_ATTRIB8_4_NV: 1595 case GL_MAP1_VERTEX_ATTRIB9_4_NV: 1596 case GL_MAP1_VERTEX_ATTRIB10_4_NV: 1597 case GL_MAP1_VERTEX_ATTRIB11_4_NV: 1598 case GL_MAP1_VERTEX_ATTRIB12_4_NV: 1599 case GL_MAP1_VERTEX_ATTRIB13_4_NV: 1600 case GL_MAP1_VERTEX_ATTRIB14_4_NV: 1601 case GL_MAP1_VERTEX_ATTRIB15_4_NV: 1602 if (ctx->API != API_OPENGL) 1603 goto invalid_enum_error; 1604 CHECK_EXTENSION(NV_vertex_program); 1605 { 1606 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); 1607 return ctx->Eval.Map1Attrib[map]; 1608 } 1609 case GL_MAP2_VERTEX_ATTRIB0_4_NV: 1610 case GL_MAP2_VERTEX_ATTRIB1_4_NV: 1611 case GL_MAP2_VERTEX_ATTRIB2_4_NV: 1612 case GL_MAP2_VERTEX_ATTRIB3_4_NV: 1613 case GL_MAP2_VERTEX_ATTRIB4_4_NV: 1614 case GL_MAP2_VERTEX_ATTRIB5_4_NV: 1615 case GL_MAP2_VERTEX_ATTRIB6_4_NV: 1616 case GL_MAP2_VERTEX_ATTRIB7_4_NV: 1617 case GL_MAP2_VERTEX_ATTRIB8_4_NV: 1618 case GL_MAP2_VERTEX_ATTRIB9_4_NV: 1619 case GL_MAP2_VERTEX_ATTRIB10_4_NV: 1620 case GL_MAP2_VERTEX_ATTRIB11_4_NV: 1621 case GL_MAP2_VERTEX_ATTRIB12_4_NV: 1622 case GL_MAP2_VERTEX_ATTRIB13_4_NV: 1623 case GL_MAP2_VERTEX_ATTRIB14_4_NV: 1624 case GL_MAP2_VERTEX_ATTRIB15_4_NV: 1625 if (ctx->API != API_OPENGL) 1626 goto invalid_enum_error; 1627 CHECK_EXTENSION(NV_vertex_program); 1628 { 1629 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); 1630 return ctx->Eval.Map2Attrib[map]; 1631 } 1632#endif /* FEATURE_NV_vertex_program */ 1633 1634#if FEATURE_NV_fragment_program 1635 case GL_FRAGMENT_PROGRAM_NV: 1636 if (ctx->API != API_OPENGL) 1637 goto invalid_enum_error; 1638 CHECK_EXTENSION(NV_fragment_program); 1639 return ctx->FragmentProgram.Enabled; 1640#endif /* FEATURE_NV_fragment_program */ 1641 1642 /* GL_NV_texture_rectangle */ 1643 case GL_TEXTURE_RECTANGLE_NV: 1644 if (ctx->API != API_OPENGL) 1645 goto invalid_enum_error; 1646 CHECK_EXTENSION(NV_texture_rectangle); 1647 return is_texture_enabled(ctx, TEXTURE_RECT_BIT); 1648 1649 /* GL_EXT_stencil_two_side */ 1650 case GL_STENCIL_TEST_TWO_SIDE_EXT: 1651 if (ctx->API != API_OPENGL) 1652 goto invalid_enum_error; 1653 CHECK_EXTENSION(EXT_stencil_two_side); 1654 return ctx->Stencil.TestTwoSide; 1655 1656#if FEATURE_ARB_fragment_program 1657 case GL_FRAGMENT_PROGRAM_ARB: 1658 if (ctx->API != API_OPENGL) 1659 goto invalid_enum_error; 1660 return ctx->FragmentProgram.Enabled; 1661#endif /* FEATURE_ARB_fragment_program */ 1662 1663 /* GL_EXT_depth_bounds_test */ 1664 case GL_DEPTH_BOUNDS_TEST_EXT: 1665 if (!_mesa_is_desktop_gl(ctx)) 1666 goto invalid_enum_error; 1667 CHECK_EXTENSION(EXT_depth_bounds_test); 1668 return ctx->Depth.BoundsTest; 1669 1670 /* GL_ARB_depth_clamp */ 1671 case GL_DEPTH_CLAMP: 1672 if (!_mesa_is_desktop_gl(ctx)) 1673 goto invalid_enum_error; 1674 CHECK_EXTENSION(ARB_depth_clamp); 1675 return ctx->Transform.DepthClamp; 1676 1677#if FEATURE_ATI_fragment_shader 1678 case GL_FRAGMENT_SHADER_ATI: 1679 if (ctx->API != API_OPENGL) 1680 goto invalid_enum_error; 1681 CHECK_EXTENSION(ATI_fragment_shader); 1682 return ctx->ATIFragmentShader.Enabled; 1683#endif /* FEATURE_ATI_fragment_shader */ 1684 1685 case GL_TEXTURE_CUBE_MAP_SEAMLESS: 1686 if (!_mesa_is_desktop_gl(ctx)) 1687 goto invalid_enum_error; 1688 CHECK_EXTENSION(ARB_seamless_cube_map); 1689 return ctx->Texture.CubeMapSeamless; 1690 1691#if FEATURE_EXT_transform_feedback 1692 case GL_RASTERIZER_DISCARD: 1693 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1694 goto invalid_enum_error; 1695 CHECK_EXTENSION(EXT_transform_feedback); 1696 return ctx->RasterDiscard; 1697#endif 1698 1699 /* GL_NV_primitive_restart */ 1700 case GL_PRIMITIVE_RESTART_NV: 1701 if (ctx->API != API_OPENGL || !ctx->Extensions.NV_primitive_restart) { 1702 goto invalid_enum_error; 1703 } 1704 return ctx->Array.PrimitiveRestart; 1705 1706 /* GL 3.1 primitive restart */ 1707 case GL_PRIMITIVE_RESTART: 1708 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { 1709 goto invalid_enum_error; 1710 } 1711 return ctx->Array.PrimitiveRestart; 1712 1713 /* GL3.0 - GL_framebuffer_sRGB */ 1714 case GL_FRAMEBUFFER_SRGB_EXT: 1715 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1716 goto invalid_enum_error; 1717 CHECK_EXTENSION(EXT_framebuffer_sRGB); 1718 return ctx->Color.sRGBEnabled; 1719 1720 /* GL_OES_EGL_image_external */ 1721 case GL_TEXTURE_EXTERNAL_OES: 1722 if (!_mesa_is_gles(ctx)) 1723 goto invalid_enum_error; 1724 CHECK_EXTENSION(OES_EGL_image_external); 1725 return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT); 1726 1727 default: 1728 goto invalid_enum_error; 1729 } 1730 1731 return GL_FALSE; 1732 1733invalid_enum_error: 1734 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(%s)", 1735 _mesa_lookup_enum_by_nr(cap)); 1736 return GL_FALSE; 1737} 1738