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 #include "drivers/common/meta.h" 42 43 44 45 #define CHECK_EXTENSION(EXTNAME, CAP) \ 46 if (!ctx->Extensions.EXTNAME) { \ 47 goto invalid_enum_error; \ 48 } 49 50 51 /** 52 * Helper to enable/disable client-side state. 53 */ 54 static void 55 client_state(struct gl_context *ctx, GLenum cap, GLboolean state) 56 { 57 struct gl_array_object *arrayObj = ctx->Array.ArrayObj; 58 GLbitfield64 flag; 59 GLboolean *var; 60 61 switch (cap) { 62 case GL_VERTEX_ARRAY: 63 var = &arrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled; 64 flag = VERT_BIT_POS; 65 break; 66 case GL_NORMAL_ARRAY: 67 var = &arrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled; 68 flag = VERT_BIT_NORMAL; 69 break; 70 case GL_COLOR_ARRAY: 71 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled; 72 flag = VERT_BIT_COLOR0; 73 break; 74 case GL_INDEX_ARRAY: 75 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled; 76 flag = VERT_BIT_COLOR_INDEX; 77 break; 78 case GL_TEXTURE_COORD_ARRAY: 79 var = &arrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)].Enabled; 80 flag = VERT_BIT_TEX(ctx->Array.ActiveTexture); 81 break; 82 case GL_EDGE_FLAG_ARRAY: 83 var = &arrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled; 84 flag = VERT_BIT_EDGEFLAG; 85 break; 86 case GL_FOG_COORDINATE_ARRAY_EXT: 87 var = &arrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled; 88 flag = VERT_BIT_FOG; 89 break; 90 case GL_SECONDARY_COLOR_ARRAY_EXT: 91 var = &arrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled; 92 flag = VERT_BIT_COLOR1; 93 break; 94 95 #if FEATURE_point_size_array 96 case GL_POINT_SIZE_ARRAY_OES: 97 var = &arrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled; 98 flag = VERT_BIT_POINT_SIZE; 99 break; 100 #endif 101 102 #if FEATURE_NV_vertex_program 103 case GL_VERTEX_ATTRIB_ARRAY0_NV: 104 case GL_VERTEX_ATTRIB_ARRAY1_NV: 105 case GL_VERTEX_ATTRIB_ARRAY2_NV: 106 case GL_VERTEX_ATTRIB_ARRAY3_NV: 107 case GL_VERTEX_ATTRIB_ARRAY4_NV: 108 case GL_VERTEX_ATTRIB_ARRAY5_NV: 109 case GL_VERTEX_ATTRIB_ARRAY6_NV: 110 case GL_VERTEX_ATTRIB_ARRAY7_NV: 111 case GL_VERTEX_ATTRIB_ARRAY8_NV: 112 case GL_VERTEX_ATTRIB_ARRAY9_NV: 113 case GL_VERTEX_ATTRIB_ARRAY10_NV: 114 case GL_VERTEX_ATTRIB_ARRAY11_NV: 115 case GL_VERTEX_ATTRIB_ARRAY12_NV: 116 case GL_VERTEX_ATTRIB_ARRAY13_NV: 117 case GL_VERTEX_ATTRIB_ARRAY14_NV: 118 case GL_VERTEX_ATTRIB_ARRAY15_NV: 119 CHECK_EXTENSION(NV_vertex_program, cap); 120 { 121 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; 122 ASSERT(VERT_ATTRIB_GENERIC(n) < Elements(arrayObj->VertexAttrib)); 123 var = &arrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(n)].Enabled; 124 flag = VERT_BIT_GENERIC(n); 125 } 126 break; 127 #endif /* FEATURE_NV_vertex_program */ 128 129 /* GL_NV_primitive_restart */ 130 case GL_PRIMITIVE_RESTART_NV: 131 if (!ctx->Extensions.NV_primitive_restart) { 132 goto invalid_enum_error; 133 } 134 var = &ctx->Array.PrimitiveRestart; 135 flag = 0; 136 break; 137 138 default: 139 goto invalid_enum_error; 140 } 141 142 if (*var == state) 143 return; 144 145 FLUSH_VERTICES(ctx, _NEW_ARRAY); 146 147 _ae_invalidate_state(ctx, _NEW_ARRAY); 148 149 *var = state; 150 151 if (state) 152 arrayObj->_Enabled |= flag; 153 else 154 arrayObj->_Enabled &= ~flag; 155 156 arrayObj->NewArrays |= flag; 157 158 if (ctx->Driver.Enable) { 159 ctx->Driver.Enable( ctx, cap, state ); 160 } 161 162 return; 163 164 invalid_enum_error: 165 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(%s)", 166 state ? "Enable" : "Disable", _mesa_lookup_enum_by_nr(cap)); 167 } 168 169 170 /** 171 * Enable GL capability. 172 * \param cap state to enable/disable. 173 * 174 * Get's the current context, assures that we're outside glBegin()/glEnd() and 175 * calls client_state(). 176 */ 177 void GLAPIENTRY 178 _mesa_EnableClientState( GLenum cap ) 179 { 180 GET_CURRENT_CONTEXT(ctx); 181 ASSERT_OUTSIDE_BEGIN_END(ctx); 182 client_state( ctx, cap, GL_TRUE ); 183 } 184 185 186 /** 187 * Disable GL capability. 188 * \param cap state to enable/disable. 189 * 190 * Get's the current context, assures that we're outside glBegin()/glEnd() and 191 * calls client_state(). 192 */ 193 void GLAPIENTRY 194 _mesa_DisableClientState( GLenum cap ) 195 { 196 GET_CURRENT_CONTEXT(ctx); 197 ASSERT_OUTSIDE_BEGIN_END(ctx); 198 client_state( ctx, cap, GL_FALSE ); 199 } 200 201 202 #undef CHECK_EXTENSION 203 #define CHECK_EXTENSION(EXTNAME, CAP) \ 204 if (!ctx->Extensions.EXTNAME) { \ 205 goto invalid_enum_error; \ 206 } 207 208 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \ 209 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ 210 goto invalid_enum_error; \ 211 } 212 213 /** 214 * Return pointer to current texture unit for setting/getting coordinate 215 * state. 216 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active 217 * texture unit is higher than the number of supported coordinate units. 218 */ 219 static struct gl_texture_unit * 220 get_texcoord_unit(struct gl_context *ctx) 221 { 222 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) { 223 _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)"); 224 return NULL; 225 } 226 else { 227 return &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 228 } 229 } 230 231 232 /** 233 * Helper function to enable or disable a texture target. 234 * \param bit one of the TEXTURE_x_BIT values 235 * \return GL_TRUE if state is changing or GL_FALSE if no change 236 */ 237 static GLboolean 238 enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit) 239 { 240 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx); 241 const GLbitfield newenabled = state 242 ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit); 243 244 if (texUnit->Enabled == newenabled) 245 return GL_FALSE; 246 247 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 248 texUnit->Enabled = newenabled; 249 return GL_TRUE; 250 } 251 252 253 /** 254 * Helper function to enable or disable state. 255 * 256 * \param ctx GL context. 257 * \param cap the state to enable/disable 258 * \param state whether to enable or disable the specified capability. 259 * 260 * Updates the current context and flushes the vertices as needed. For 261 * capabilities associated with extensions it verifies that those extensions 262 * are effectivly present before updating. Notifies the driver via 263 * dd_function_table::Enable. 264 */ 265 void 266 _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state) 267 { 268 if (MESA_VERBOSE & VERBOSE_API) 269 _mesa_debug(ctx, "%s %s (newstate is %x)\n", 270 state ? "glEnable" : "glDisable", 271 _mesa_lookup_enum_by_nr(cap), 272 ctx->NewState); 273 274 switch (cap) { 275 case GL_ALPHA_TEST: 276 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 277 goto invalid_enum_error; 278 if (ctx->Color.AlphaEnabled == state) 279 return; 280 FLUSH_VERTICES(ctx, _NEW_COLOR); 281 ctx->Color.AlphaEnabled = state; 282 break; 283 case GL_AUTO_NORMAL: 284 if (ctx->API != API_OPENGL) 285 goto invalid_enum_error; 286 if (ctx->Eval.AutoNormal == state) 287 return; 288 FLUSH_VERTICES(ctx, _NEW_EVAL); 289 ctx->Eval.AutoNormal = state; 290 break; 291 case GL_BLEND: 292 { 293 GLbitfield newEnabled = 294 state * ((1 << ctx->Const.MaxDrawBuffers) - 1); 295 if (newEnabled != ctx->Color.BlendEnabled) { 296 FLUSH_VERTICES(ctx, _NEW_COLOR); 297 ctx->Color.BlendEnabled = newEnabled; 298 } 299 } 300 break; 301 #if FEATURE_userclip 302 case GL_CLIP_DISTANCE0: 303 case GL_CLIP_DISTANCE1: 304 case GL_CLIP_DISTANCE2: 305 case GL_CLIP_DISTANCE3: 306 case GL_CLIP_DISTANCE4: 307 case GL_CLIP_DISTANCE5: 308 case GL_CLIP_DISTANCE6: 309 case GL_CLIP_DISTANCE7: 310 { 311 const GLuint p = cap - GL_CLIP_DISTANCE0; 312 313 if (p >= ctx->Const.MaxClipPlanes) 314 goto invalid_enum_error; 315 316 if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) 317 == ((GLuint) state << p)) 318 return; 319 320 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 321 322 if (state) { 323 ctx->Transform.ClipPlanesEnabled |= (1 << p); 324 _mesa_update_clip_plane(ctx, p); 325 } 326 else { 327 ctx->Transform.ClipPlanesEnabled &= ~(1 << p); 328 } 329 } 330 break; 331 #endif 332 case GL_COLOR_MATERIAL: 333 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 334 goto invalid_enum_error; 335 if (ctx->Light.ColorMaterialEnabled == state) 336 return; 337 FLUSH_VERTICES(ctx, _NEW_LIGHT); 338 FLUSH_CURRENT(ctx, 0); 339 ctx->Light.ColorMaterialEnabled = state; 340 if (state) { 341 _mesa_update_color_material( ctx, 342 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] ); 343 } 344 break; 345 case GL_CULL_FACE: 346 if (ctx->Polygon.CullFlag == state) 347 return; 348 FLUSH_VERTICES(ctx, _NEW_POLYGON); 349 ctx->Polygon.CullFlag = state; 350 break; 351 case GL_DEPTH_TEST: 352 if (ctx->Depth.Test == state) 353 return; 354 FLUSH_VERTICES(ctx, _NEW_DEPTH); 355 ctx->Depth.Test = state; 356 break; 357 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: 358 if (!_mesa_is_desktop_gl(ctx)) 359 goto invalid_enum_error; 360 ctx->Debug.SyncOutput = state; 361 break; 362 case GL_DITHER: 363 if (ctx->Color.DitherFlag == state) 364 return; 365 FLUSH_VERTICES(ctx, _NEW_COLOR); 366 ctx->Color.DitherFlag = state; 367 break; 368 case GL_FOG: 369 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 370 goto invalid_enum_error; 371 if (ctx->Fog.Enabled == state) 372 return; 373 FLUSH_VERTICES(ctx, _NEW_FOG); 374 ctx->Fog.Enabled = state; 375 break; 376 case GL_LIGHT0: 377 case GL_LIGHT1: 378 case GL_LIGHT2: 379 case GL_LIGHT3: 380 case GL_LIGHT4: 381 case GL_LIGHT5: 382 case GL_LIGHT6: 383 case GL_LIGHT7: 384 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 385 goto invalid_enum_error; 386 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state) 387 return; 388 FLUSH_VERTICES(ctx, _NEW_LIGHT); 389 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state; 390 if (state) { 391 insert_at_tail(&ctx->Light.EnabledList, 392 &ctx->Light.Light[cap-GL_LIGHT0]); 393 } 394 else { 395 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]); 396 } 397 break; 398 case GL_LIGHTING: 399 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 400 goto invalid_enum_error; 401 if (ctx->Light.Enabled == state) 402 return; 403 FLUSH_VERTICES(ctx, _NEW_LIGHT); 404 ctx->Light.Enabled = state; 405 if (ctx->Light.Enabled && ctx->Light.Model.TwoSide) 406 ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE; 407 else 408 ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE; 409 break; 410 case GL_LINE_SMOOTH: 411 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 412 goto invalid_enum_error; 413 if (ctx->Line.SmoothFlag == state) 414 return; 415 FLUSH_VERTICES(ctx, _NEW_LINE); 416 ctx->Line.SmoothFlag = state; 417 ctx->_TriangleCaps ^= DD_LINE_SMOOTH; 418 break; 419 case GL_LINE_STIPPLE: 420 if (ctx->API != API_OPENGL) 421 goto invalid_enum_error; 422 if (ctx->Line.StippleFlag == state) 423 return; 424 FLUSH_VERTICES(ctx, _NEW_LINE); 425 ctx->Line.StippleFlag = state; 426 ctx->_TriangleCaps ^= DD_LINE_STIPPLE; 427 break; 428 case GL_INDEX_LOGIC_OP: 429 if (ctx->API != API_OPENGL) 430 goto invalid_enum_error; 431 if (ctx->Color.IndexLogicOpEnabled == state) 432 return; 433 FLUSH_VERTICES(ctx, _NEW_COLOR); 434 ctx->Color.IndexLogicOpEnabled = state; 435 break; 436 case GL_COLOR_LOGIC_OP: 437 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 438 goto invalid_enum_error; 439 if (ctx->Color.ColorLogicOpEnabled == state) 440 return; 441 FLUSH_VERTICES(ctx, _NEW_COLOR); 442 ctx->Color.ColorLogicOpEnabled = state; 443 break; 444 case GL_MAP1_COLOR_4: 445 if (ctx->API != API_OPENGL) 446 goto invalid_enum_error; 447 if (ctx->Eval.Map1Color4 == state) 448 return; 449 FLUSH_VERTICES(ctx, _NEW_EVAL); 450 ctx->Eval.Map1Color4 = state; 451 break; 452 case GL_MAP1_INDEX: 453 if (ctx->API != API_OPENGL) 454 goto invalid_enum_error; 455 if (ctx->Eval.Map1Index == state) 456 return; 457 FLUSH_VERTICES(ctx, _NEW_EVAL); 458 ctx->Eval.Map1Index = state; 459 break; 460 case GL_MAP1_NORMAL: 461 if (ctx->API != API_OPENGL) 462 goto invalid_enum_error; 463 if (ctx->Eval.Map1Normal == state) 464 return; 465 FLUSH_VERTICES(ctx, _NEW_EVAL); 466 ctx->Eval.Map1Normal = state; 467 break; 468 case GL_MAP1_TEXTURE_COORD_1: 469 if (ctx->API != API_OPENGL) 470 goto invalid_enum_error; 471 if (ctx->Eval.Map1TextureCoord1 == state) 472 return; 473 FLUSH_VERTICES(ctx, _NEW_EVAL); 474 ctx->Eval.Map1TextureCoord1 = state; 475 break; 476 case GL_MAP1_TEXTURE_COORD_2: 477 if (ctx->API != API_OPENGL) 478 goto invalid_enum_error; 479 if (ctx->Eval.Map1TextureCoord2 == state) 480 return; 481 FLUSH_VERTICES(ctx, _NEW_EVAL); 482 ctx->Eval.Map1TextureCoord2 = state; 483 break; 484 case GL_MAP1_TEXTURE_COORD_3: 485 if (ctx->API != API_OPENGL) 486 goto invalid_enum_error; 487 if (ctx->Eval.Map1TextureCoord3 == state) 488 return; 489 FLUSH_VERTICES(ctx, _NEW_EVAL); 490 ctx->Eval.Map1TextureCoord3 = state; 491 break; 492 case GL_MAP1_TEXTURE_COORD_4: 493 if (ctx->API != API_OPENGL) 494 goto invalid_enum_error; 495 if (ctx->Eval.Map1TextureCoord4 == state) 496 return; 497 FLUSH_VERTICES(ctx, _NEW_EVAL); 498 ctx->Eval.Map1TextureCoord4 = state; 499 break; 500 case GL_MAP1_VERTEX_3: 501 if (ctx->API != API_OPENGL) 502 goto invalid_enum_error; 503 if (ctx->Eval.Map1Vertex3 == state) 504 return; 505 FLUSH_VERTICES(ctx, _NEW_EVAL); 506 ctx->Eval.Map1Vertex3 = state; 507 break; 508 case GL_MAP1_VERTEX_4: 509 if (ctx->API != API_OPENGL) 510 goto invalid_enum_error; 511 if (ctx->Eval.Map1Vertex4 == state) 512 return; 513 FLUSH_VERTICES(ctx, _NEW_EVAL); 514 ctx->Eval.Map1Vertex4 = state; 515 break; 516 case GL_MAP2_COLOR_4: 517 if (ctx->API != API_OPENGL) 518 goto invalid_enum_error; 519 if (ctx->Eval.Map2Color4 == state) 520 return; 521 FLUSH_VERTICES(ctx, _NEW_EVAL); 522 ctx->Eval.Map2Color4 = state; 523 break; 524 case GL_MAP2_INDEX: 525 if (ctx->API != API_OPENGL) 526 goto invalid_enum_error; 527 if (ctx->Eval.Map2Index == state) 528 return; 529 FLUSH_VERTICES(ctx, _NEW_EVAL); 530 ctx->Eval.Map2Index = state; 531 break; 532 case GL_MAP2_NORMAL: 533 if (ctx->API != API_OPENGL) 534 goto invalid_enum_error; 535 if (ctx->Eval.Map2Normal == state) 536 return; 537 FLUSH_VERTICES(ctx, _NEW_EVAL); 538 ctx->Eval.Map2Normal = state; 539 break; 540 case GL_MAP2_TEXTURE_COORD_1: 541 if (ctx->API != API_OPENGL) 542 goto invalid_enum_error; 543 if (ctx->Eval.Map2TextureCoord1 == state) 544 return; 545 FLUSH_VERTICES(ctx, _NEW_EVAL); 546 ctx->Eval.Map2TextureCoord1 = state; 547 break; 548 case GL_MAP2_TEXTURE_COORD_2: 549 if (ctx->API != API_OPENGL) 550 goto invalid_enum_error; 551 if (ctx->Eval.Map2TextureCoord2 == state) 552 return; 553 FLUSH_VERTICES(ctx, _NEW_EVAL); 554 ctx->Eval.Map2TextureCoord2 = state; 555 break; 556 case GL_MAP2_TEXTURE_COORD_3: 557 if (ctx->API != API_OPENGL) 558 goto invalid_enum_error; 559 if (ctx->Eval.Map2TextureCoord3 == state) 560 return; 561 FLUSH_VERTICES(ctx, _NEW_EVAL); 562 ctx->Eval.Map2TextureCoord3 = state; 563 break; 564 case GL_MAP2_TEXTURE_COORD_4: 565 if (ctx->API != API_OPENGL) 566 goto invalid_enum_error; 567 if (ctx->Eval.Map2TextureCoord4 == state) 568 return; 569 FLUSH_VERTICES(ctx, _NEW_EVAL); 570 ctx->Eval.Map2TextureCoord4 = state; 571 break; 572 case GL_MAP2_VERTEX_3: 573 if (ctx->API != API_OPENGL) 574 goto invalid_enum_error; 575 if (ctx->Eval.Map2Vertex3 == state) 576 return; 577 FLUSH_VERTICES(ctx, _NEW_EVAL); 578 ctx->Eval.Map2Vertex3 = state; 579 break; 580 case GL_MAP2_VERTEX_4: 581 if (ctx->API != API_OPENGL) 582 goto invalid_enum_error; 583 if (ctx->Eval.Map2Vertex4 == state) 584 return; 585 FLUSH_VERTICES(ctx, _NEW_EVAL); 586 ctx->Eval.Map2Vertex4 = state; 587 break; 588 case GL_NORMALIZE: 589 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 590 goto invalid_enum_error; 591 if (ctx->Transform.Normalize == state) 592 return; 593 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 594 ctx->Transform.Normalize = state; 595 break; 596 case GL_POINT_SMOOTH: 597 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 598 goto invalid_enum_error; 599 if (ctx->Point.SmoothFlag == state) 600 return; 601 FLUSH_VERTICES(ctx, _NEW_POINT); 602 ctx->Point.SmoothFlag = state; 603 ctx->_TriangleCaps ^= DD_POINT_SMOOTH; 604 break; 605 case GL_POLYGON_SMOOTH: 606 if (!_mesa_is_desktop_gl(ctx)) 607 goto invalid_enum_error; 608 if (ctx->Polygon.SmoothFlag == state) 609 return; 610 FLUSH_VERTICES(ctx, _NEW_POLYGON); 611 ctx->Polygon.SmoothFlag = state; 612 ctx->_TriangleCaps ^= DD_TRI_SMOOTH; 613 break; 614 case GL_POLYGON_STIPPLE: 615 if (ctx->API != API_OPENGL) 616 goto invalid_enum_error; 617 if (ctx->Polygon.StippleFlag == state) 618 return; 619 FLUSH_VERTICES(ctx, _NEW_POLYGON); 620 ctx->Polygon.StippleFlag = state; 621 ctx->_TriangleCaps ^= DD_TRI_STIPPLE; 622 break; 623 case GL_POLYGON_OFFSET_POINT: 624 if (!_mesa_is_desktop_gl(ctx)) 625 goto invalid_enum_error; 626 if (ctx->Polygon.OffsetPoint == state) 627 return; 628 FLUSH_VERTICES(ctx, _NEW_POLYGON); 629 ctx->Polygon.OffsetPoint = state; 630 break; 631 case GL_POLYGON_OFFSET_LINE: 632 if (!_mesa_is_desktop_gl(ctx)) 633 goto invalid_enum_error; 634 if (ctx->Polygon.OffsetLine == state) 635 return; 636 FLUSH_VERTICES(ctx, _NEW_POLYGON); 637 ctx->Polygon.OffsetLine = state; 638 break; 639 case GL_POLYGON_OFFSET_FILL: 640 if (ctx->Polygon.OffsetFill == state) 641 return; 642 FLUSH_VERTICES(ctx, _NEW_POLYGON); 643 ctx->Polygon.OffsetFill = state; 644 break; 645 case GL_RESCALE_NORMAL_EXT: 646 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 647 goto invalid_enum_error; 648 if (ctx->Transform.RescaleNormals == state) 649 return; 650 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 651 ctx->Transform.RescaleNormals = state; 652 break; 653 case GL_SCISSOR_TEST: 654 if (ctx->Scissor.Enabled == state) 655 return; 656 FLUSH_VERTICES(ctx, _NEW_SCISSOR); 657 ctx->Scissor.Enabled = state; 658 break; 659 case GL_STENCIL_TEST: 660 if (ctx->Stencil.Enabled == state) 661 return; 662 FLUSH_VERTICES(ctx, _NEW_STENCIL); 663 ctx->Stencil.Enabled = state; 664 break; 665 case GL_TEXTURE_1D: 666 if (ctx->API != API_OPENGL) 667 goto invalid_enum_error; 668 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) { 669 return; 670 } 671 break; 672 case GL_TEXTURE_2D: 673 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 674 goto invalid_enum_error; 675 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) { 676 return; 677 } 678 break; 679 case GL_TEXTURE_3D: 680 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 681 goto invalid_enum_error; 682 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) { 683 return; 684 } 685 break; 686 case GL_TEXTURE_GEN_S: 687 case GL_TEXTURE_GEN_T: 688 case GL_TEXTURE_GEN_R: 689 case GL_TEXTURE_GEN_Q: 690 { 691 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 692 693 if (ctx->API != API_OPENGL) 694 goto invalid_enum_error; 695 696 if (texUnit) { 697 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); 698 GLbitfield newenabled = texUnit->TexGenEnabled & ~coordBit; 699 if (state) 700 newenabled |= coordBit; 701 if (texUnit->TexGenEnabled == newenabled) 702 return; 703 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 704 texUnit->TexGenEnabled = newenabled; 705 } 706 } 707 break; 708 709 #if FEATURE_ES1 710 case GL_TEXTURE_GEN_STR_OES: 711 /* disable S, T, and R at the same time */ 712 { 713 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 714 715 if (ctx->API != API_OPENGLES) 716 goto invalid_enum_error; 717 718 if (texUnit) { 719 GLuint newenabled = 720 texUnit->TexGenEnabled & ~STR_BITS; 721 if (state) 722 newenabled |= STR_BITS; 723 if (texUnit->TexGenEnabled == newenabled) 724 return; 725 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 726 texUnit->TexGenEnabled = newenabled; 727 } 728 } 729 break; 730 #endif 731 732 /* client-side state */ 733 case GL_VERTEX_ARRAY: 734 case GL_NORMAL_ARRAY: 735 case GL_COLOR_ARRAY: 736 case GL_INDEX_ARRAY: 737 case GL_TEXTURE_COORD_ARRAY: 738 case GL_EDGE_FLAG_ARRAY: 739 case GL_FOG_COORDINATE_ARRAY_EXT: 740 case GL_SECONDARY_COLOR_ARRAY_EXT: 741 case GL_POINT_SIZE_ARRAY_OES: 742 client_state( ctx, cap, state ); 743 return; 744 745 /* GL_ARB_texture_cube_map */ 746 case GL_TEXTURE_CUBE_MAP_ARB: 747 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 748 goto invalid_enum_error; 749 CHECK_EXTENSION(ARB_texture_cube_map, cap); 750 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) { 751 return; 752 } 753 break; 754 755 /* GL_EXT_secondary_color */ 756 case GL_COLOR_SUM_EXT: 757 if (ctx->API != API_OPENGL) 758 goto invalid_enum_error; 759 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap); 760 if (ctx->Fog.ColorSumEnabled == state) 761 return; 762 FLUSH_VERTICES(ctx, _NEW_FOG); 763 ctx->Fog.ColorSumEnabled = state; 764 break; 765 766 /* GL_ARB_multisample */ 767 case GL_MULTISAMPLE_ARB: 768 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 769 goto invalid_enum_error; 770 if (ctx->Multisample.Enabled == state) 771 return; 772 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 773 ctx->Multisample.Enabled = state; 774 break; 775 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: 776 if (ctx->Multisample.SampleAlphaToCoverage == state) 777 return; 778 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 779 ctx->Multisample.SampleAlphaToCoverage = state; 780 break; 781 case GL_SAMPLE_ALPHA_TO_ONE_ARB: 782 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 783 goto invalid_enum_error; 784 if (ctx->Multisample.SampleAlphaToOne == state) 785 return; 786 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 787 ctx->Multisample.SampleAlphaToOne = state; 788 break; 789 case GL_SAMPLE_COVERAGE_ARB: 790 if (ctx->Multisample.SampleCoverage == state) 791 return; 792 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 793 ctx->Multisample.SampleCoverage = state; 794 break; 795 case GL_SAMPLE_COVERAGE_INVERT_ARB: 796 if (!_mesa_is_desktop_gl(ctx)) 797 goto invalid_enum_error; 798 if (ctx->Multisample.SampleCoverageInvert == state) 799 return; 800 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE); 801 ctx->Multisample.SampleCoverageInvert = state; 802 break; 803 804 /* GL_IBM_rasterpos_clip */ 805 case GL_RASTER_POSITION_UNCLIPPED_IBM: 806 if (ctx->API != API_OPENGL) 807 goto invalid_enum_error; 808 CHECK_EXTENSION(IBM_rasterpos_clip, cap); 809 if (ctx->Transform.RasterPositionUnclipped == state) 810 return; 811 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 812 ctx->Transform.RasterPositionUnclipped = state; 813 break; 814 815 /* GL_NV_point_sprite */ 816 case GL_POINT_SPRITE_NV: 817 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 818 goto invalid_enum_error; 819 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap); 820 if (ctx->Point.PointSprite == state) 821 return; 822 FLUSH_VERTICES(ctx, _NEW_POINT); 823 ctx->Point.PointSprite = state; 824 break; 825 826 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program 827 case GL_VERTEX_PROGRAM_ARB: 828 if (ctx->API != API_OPENGL) 829 goto invalid_enum_error; 830 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 831 if (ctx->VertexProgram.Enabled == state) 832 return; 833 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 834 ctx->VertexProgram.Enabled = state; 835 break; 836 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: 837 /* This was added with ARB_vertex_program, but it is also used with 838 * GLSL vertex shaders on desktop. 839 */ 840 if (!_mesa_is_desktop_gl(ctx)) 841 goto invalid_enum_error; 842 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 843 if (ctx->VertexProgram.PointSizeEnabled == state) 844 return; 845 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 846 ctx->VertexProgram.PointSizeEnabled = state; 847 break; 848 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: 849 if (ctx->API != API_OPENGL) 850 goto invalid_enum_error; 851 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap); 852 if (ctx->VertexProgram.TwoSideEnabled == state) 853 return; 854 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 855 ctx->VertexProgram.TwoSideEnabled = state; 856 break; 857 #endif 858 #if FEATURE_NV_vertex_program 859 case GL_MAP1_VERTEX_ATTRIB0_4_NV: 860 case GL_MAP1_VERTEX_ATTRIB1_4_NV: 861 case GL_MAP1_VERTEX_ATTRIB2_4_NV: 862 case GL_MAP1_VERTEX_ATTRIB3_4_NV: 863 case GL_MAP1_VERTEX_ATTRIB4_4_NV: 864 case GL_MAP1_VERTEX_ATTRIB5_4_NV: 865 case GL_MAP1_VERTEX_ATTRIB6_4_NV: 866 case GL_MAP1_VERTEX_ATTRIB7_4_NV: 867 case GL_MAP1_VERTEX_ATTRIB8_4_NV: 868 case GL_MAP1_VERTEX_ATTRIB9_4_NV: 869 case GL_MAP1_VERTEX_ATTRIB10_4_NV: 870 case GL_MAP1_VERTEX_ATTRIB11_4_NV: 871 case GL_MAP1_VERTEX_ATTRIB12_4_NV: 872 case GL_MAP1_VERTEX_ATTRIB13_4_NV: 873 case GL_MAP1_VERTEX_ATTRIB14_4_NV: 874 case GL_MAP1_VERTEX_ATTRIB15_4_NV: 875 if (ctx->API != API_OPENGL) 876 goto invalid_enum_error; 877 CHECK_EXTENSION(NV_vertex_program, cap); 878 { 879 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); 880 FLUSH_VERTICES(ctx, _NEW_EVAL); 881 ctx->Eval.Map1Attrib[map] = state; 882 } 883 break; 884 case GL_MAP2_VERTEX_ATTRIB0_4_NV: 885 case GL_MAP2_VERTEX_ATTRIB1_4_NV: 886 case GL_MAP2_VERTEX_ATTRIB2_4_NV: 887 case GL_MAP2_VERTEX_ATTRIB3_4_NV: 888 case GL_MAP2_VERTEX_ATTRIB4_4_NV: 889 case GL_MAP2_VERTEX_ATTRIB5_4_NV: 890 case GL_MAP2_VERTEX_ATTRIB6_4_NV: 891 case GL_MAP2_VERTEX_ATTRIB7_4_NV: 892 case GL_MAP2_VERTEX_ATTRIB8_4_NV: 893 case GL_MAP2_VERTEX_ATTRIB9_4_NV: 894 case GL_MAP2_VERTEX_ATTRIB10_4_NV: 895 case GL_MAP2_VERTEX_ATTRIB11_4_NV: 896 case GL_MAP2_VERTEX_ATTRIB12_4_NV: 897 case GL_MAP2_VERTEX_ATTRIB13_4_NV: 898 case GL_MAP2_VERTEX_ATTRIB14_4_NV: 899 case GL_MAP2_VERTEX_ATTRIB15_4_NV: 900 if (ctx->API != API_OPENGL) 901 goto invalid_enum_error; 902 CHECK_EXTENSION(NV_vertex_program, cap); 903 { 904 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); 905 FLUSH_VERTICES(ctx, _NEW_EVAL); 906 ctx->Eval.Map2Attrib[map] = state; 907 } 908 break; 909 #endif /* FEATURE_NV_vertex_program */ 910 911 #if FEATURE_NV_fragment_program 912 case GL_FRAGMENT_PROGRAM_NV: 913 if (ctx->API != API_OPENGL) 914 goto invalid_enum_error; 915 CHECK_EXTENSION(NV_fragment_program, cap); 916 if (ctx->FragmentProgram.Enabled == state) 917 return; 918 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 919 ctx->FragmentProgram.Enabled = state; 920 break; 921 #endif /* FEATURE_NV_fragment_program */ 922 923 /* GL_NV_texture_rectangle */ 924 case GL_TEXTURE_RECTANGLE_NV: 925 if (ctx->API != API_OPENGL) 926 goto invalid_enum_error; 927 CHECK_EXTENSION(NV_texture_rectangle, cap); 928 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) { 929 return; 930 } 931 break; 932 933 /* GL_EXT_stencil_two_side */ 934 case GL_STENCIL_TEST_TWO_SIDE_EXT: 935 if (ctx->API != API_OPENGL) 936 goto invalid_enum_error; 937 CHECK_EXTENSION(EXT_stencil_two_side, cap); 938 if (ctx->Stencil.TestTwoSide == state) 939 return; 940 FLUSH_VERTICES(ctx, _NEW_STENCIL); 941 ctx->Stencil.TestTwoSide = state; 942 if (state) { 943 ctx->Stencil._BackFace = 2; 944 } else { 945 ctx->Stencil._BackFace = 1; 946 } 947 break; 948 949 #if FEATURE_ARB_fragment_program 950 case GL_FRAGMENT_PROGRAM_ARB: 951 if (ctx->API != API_OPENGL) 952 goto invalid_enum_error; 953 CHECK_EXTENSION(ARB_fragment_program, cap); 954 if (ctx->FragmentProgram.Enabled == state) 955 return; 956 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 957 ctx->FragmentProgram.Enabled = state; 958 break; 959 #endif /* FEATURE_ARB_fragment_program */ 960 961 /* GL_EXT_depth_bounds_test */ 962 case GL_DEPTH_BOUNDS_TEST_EXT: 963 if (!_mesa_is_desktop_gl(ctx)) 964 goto invalid_enum_error; 965 CHECK_EXTENSION(EXT_depth_bounds_test, cap); 966 if (ctx->Depth.BoundsTest == state) 967 return; 968 FLUSH_VERTICES(ctx, _NEW_DEPTH); 969 ctx->Depth.BoundsTest = state; 970 break; 971 972 case GL_DEPTH_CLAMP: 973 if (!_mesa_is_desktop_gl(ctx)) 974 goto invalid_enum_error; 975 CHECK_EXTENSION(ARB_depth_clamp, cap); 976 if (ctx->Transform.DepthClamp == state) 977 return; 978 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 979 ctx->Transform.DepthClamp = state; 980 break; 981 982 #if FEATURE_ATI_fragment_shader 983 case GL_FRAGMENT_SHADER_ATI: 984 if (ctx->API != API_OPENGL) 985 goto invalid_enum_error; 986 CHECK_EXTENSION(ATI_fragment_shader, cap); 987 if (ctx->ATIFragmentShader.Enabled == state) 988 return; 989 FLUSH_VERTICES(ctx, _NEW_PROGRAM); 990 ctx->ATIFragmentShader.Enabled = state; 991 break; 992 #endif 993 994 /* GL_MESA_texture_array */ 995 case GL_TEXTURE_1D_ARRAY_EXT: 996 if (ctx->API != API_OPENGL) 997 goto invalid_enum_error; 998 CHECK_EXTENSION(MESA_texture_array, cap); 999 if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) { 1000 return; 1001 } 1002 break; 1003 1004 case GL_TEXTURE_2D_ARRAY_EXT: 1005 if (ctx->API != API_OPENGL) 1006 goto invalid_enum_error; 1007 CHECK_EXTENSION(MESA_texture_array, cap); 1008 if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) { 1009 return; 1010 } 1011 break; 1012 1013 case GL_TEXTURE_CUBE_MAP_SEAMLESS: 1014 if (!_mesa_is_desktop_gl(ctx)) 1015 goto invalid_enum_error; 1016 CHECK_EXTENSION(ARB_seamless_cube_map, cap); 1017 if (ctx->Texture.CubeMapSeamless != state) { 1018 FLUSH_VERTICES(ctx, _NEW_TEXTURE); 1019 ctx->Texture.CubeMapSeamless = state; 1020 } 1021 break; 1022 1023 #if FEATURE_EXT_transform_feedback 1024 case GL_RASTERIZER_DISCARD: 1025 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1026 goto invalid_enum_error; 1027 CHECK_EXTENSION(EXT_transform_feedback, cap); 1028 if (ctx->RasterDiscard != state) { 1029 FLUSH_VERTICES(ctx, _NEW_RASTERIZER_DISCARD); 1030 ctx->RasterDiscard = state; 1031 } 1032 break; 1033 #endif 1034 1035 /* GL 3.1 primitive restart. Note: this enum is different from 1036 * GL_PRIMITIVE_RESTART_NV (which is client state). 1037 */ 1038 case GL_PRIMITIVE_RESTART: 1039 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { 1040 goto invalid_enum_error; 1041 } 1042 if (ctx->Array.PrimitiveRestart != state) { 1043 FLUSH_VERTICES(ctx, _NEW_TRANSFORM); 1044 ctx->Array.PrimitiveRestart = state; 1045 } 1046 break; 1047 1048 /* GL3.0 - GL_framebuffer_sRGB */ 1049 case GL_FRAMEBUFFER_SRGB_EXT: 1050 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1051 goto invalid_enum_error; 1052 CHECK_EXTENSION(EXT_framebuffer_sRGB, cap); 1053 FLUSH_VERTICES(ctx, _NEW_BUFFERS); 1054 ctx->Color.sRGBEnabled = state; 1055 break; 1056 1057 /* GL_OES_EGL_image_external */ 1058 case GL_TEXTURE_EXTERNAL_OES: 1059 if (!_mesa_is_gles(ctx)) 1060 goto invalid_enum_error; 1061 CHECK_EXTENSION(OES_EGL_image_external, cap); 1062 if (!enable_texture(ctx, state, TEXTURE_EXTERNAL_BIT)) { 1063 return; 1064 } 1065 break; 1066 1067 default: 1068 goto invalid_enum_error; 1069 } 1070 1071 if (ctx->Driver.Enable) { 1072 ctx->Driver.Enable( ctx, cap, state ); 1073 } 1074 1075 return; 1076 1077 invalid_enum_error: 1078 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(%s)", 1079 state ? "Enable" : "Disable", _mesa_lookup_enum_by_nr(cap)); 1080 } 1081 1082 1083 /** 1084 * Enable GL capability. Called by glEnable() 1085 * \param cap state to enable. 1086 */ 1087 void GLAPIENTRY 1088 _mesa_Enable( GLenum cap ) 1089 { 1090 GET_CURRENT_CONTEXT(ctx); 1091 ASSERT_OUTSIDE_BEGIN_END(ctx); 1092 1093 _mesa_set_enable( ctx, cap, GL_TRUE ); 1094 } 1095 1096 1097 /** 1098 * Disable GL capability. Called by glDisable() 1099 * \param cap state to disable. 1100 */ 1101 void GLAPIENTRY 1102 _mesa_Disable( GLenum cap ) 1103 { 1104 GET_CURRENT_CONTEXT(ctx); 1105 ASSERT_OUTSIDE_BEGIN_END(ctx); 1106 1107 _mesa_set_enable( ctx, cap, GL_FALSE ); 1108 } 1109 1110 1111 1112 /** 1113 * Enable/disable an indexed state var. 1114 */ 1115 void 1116 _mesa_set_enablei(struct gl_context *ctx, GLenum cap, 1117 GLuint index, GLboolean state) 1118 { 1119 ASSERT(state == 0 || state == 1); 1120 switch (cap) { 1121 case GL_BLEND: 1122 if (!ctx->Extensions.EXT_draw_buffers2) { 1123 goto invalid_enum_error; 1124 } 1125 if (index >= ctx->Const.MaxDrawBuffers) { 1126 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)", 1127 state ? "glEnableIndexed" : "glDisableIndexed", index); 1128 return; 1129 } 1130 if (((ctx->Color.BlendEnabled >> index) & 1) != state) { 1131 FLUSH_VERTICES(ctx, _NEW_COLOR); 1132 if (state) 1133 ctx->Color.BlendEnabled |= (1 << index); 1134 else 1135 ctx->Color.BlendEnabled &= ~(1 << index); 1136 } 1137 break; 1138 default: 1139 goto invalid_enum_error; 1140 } 1141 return; 1142 1143 invalid_enum_error: 1144 _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)", 1145 state ? "glEnablei" : "glDisablei", 1146 _mesa_lookup_enum_by_nr(cap)); 1147 } 1148 1149 1150 void GLAPIENTRY 1151 _mesa_DisableIndexed( GLenum cap, GLuint index ) 1152 { 1153 GET_CURRENT_CONTEXT(ctx); 1154 ASSERT_OUTSIDE_BEGIN_END(ctx); 1155 _mesa_set_enablei(ctx, cap, index, GL_FALSE); 1156 } 1157 1158 1159 void GLAPIENTRY 1160 _mesa_EnableIndexed( GLenum cap, GLuint index ) 1161 { 1162 GET_CURRENT_CONTEXT(ctx); 1163 ASSERT_OUTSIDE_BEGIN_END(ctx); 1164 _mesa_set_enablei(ctx, cap, index, GL_TRUE); 1165 } 1166 1167 1168 GLboolean GLAPIENTRY 1169 _mesa_IsEnabledIndexed( GLenum cap, GLuint index ) 1170 { 1171 GET_CURRENT_CONTEXT(ctx); 1172 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); 1173 switch (cap) { 1174 case GL_BLEND: 1175 if (index >= ctx->Const.MaxDrawBuffers) { 1176 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)", 1177 index); 1178 return GL_FALSE; 1179 } 1180 return (ctx->Color.BlendEnabled >> index) & 1; 1181 default: 1182 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)", 1183 _mesa_lookup_enum_by_nr(cap)); 1184 return GL_FALSE; 1185 } 1186 } 1187 1188 1189 1190 1191 #undef CHECK_EXTENSION 1192 #define CHECK_EXTENSION(EXTNAME) \ 1193 if (!ctx->Extensions.EXTNAME) { \ 1194 goto invalid_enum_error; \ 1195 } 1196 1197 #undef CHECK_EXTENSION2 1198 #define CHECK_EXTENSION2(EXT1, EXT2) \ 1199 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \ 1200 goto invalid_enum_error; \ 1201 } 1202 1203 1204 /** 1205 * Helper function to determine whether a texture target is enabled. 1206 */ 1207 static GLboolean 1208 is_texture_enabled(struct gl_context *ctx, GLbitfield bit) 1209 { 1210 const struct gl_texture_unit *const texUnit = 1211 &ctx->Texture.Unit[ctx->Texture.CurrentUnit]; 1212 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE; 1213 } 1214 1215 1216 /** 1217 * Return simple enable/disable state. 1218 * 1219 * \param cap state variable to query. 1220 * 1221 * Returns the state of the specified capability from the current GL context. 1222 * For the capabilities associated with extensions verifies that those 1223 * extensions are effectively present before reporting. 1224 */ 1225 GLboolean GLAPIENTRY 1226 _mesa_IsEnabled( GLenum cap ) 1227 { 1228 GET_CURRENT_CONTEXT(ctx); 1229 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0); 1230 1231 switch (cap) { 1232 case GL_ALPHA_TEST: 1233 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1234 goto invalid_enum_error; 1235 return ctx->Color.AlphaEnabled; 1236 case GL_AUTO_NORMAL: 1237 if (ctx->API != API_OPENGL) 1238 goto invalid_enum_error; 1239 return ctx->Eval.AutoNormal; 1240 case GL_BLEND: 1241 return ctx->Color.BlendEnabled & 1; /* return state for buffer[0] */ 1242 case GL_CLIP_DISTANCE0: 1243 case GL_CLIP_DISTANCE1: 1244 case GL_CLIP_DISTANCE2: 1245 case GL_CLIP_DISTANCE3: 1246 case GL_CLIP_DISTANCE4: 1247 case GL_CLIP_DISTANCE5: 1248 case GL_CLIP_DISTANCE6: 1249 case GL_CLIP_DISTANCE7: { 1250 const GLuint p = cap - GL_CLIP_DISTANCE0; 1251 1252 if (p >= ctx->Const.MaxClipPlanes) 1253 goto invalid_enum_error; 1254 1255 return (ctx->Transform.ClipPlanesEnabled >> p) & 1; 1256 } 1257 case GL_COLOR_MATERIAL: 1258 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1259 goto invalid_enum_error; 1260 return ctx->Light.ColorMaterialEnabled; 1261 case GL_CULL_FACE: 1262 return ctx->Polygon.CullFlag; 1263 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB: 1264 if (!_mesa_is_desktop_gl(ctx)) 1265 goto invalid_enum_error; 1266 return ctx->Debug.SyncOutput; 1267 case GL_DEPTH_TEST: 1268 return ctx->Depth.Test; 1269 case GL_DITHER: 1270 return ctx->Color.DitherFlag; 1271 case GL_FOG: 1272 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1273 goto invalid_enum_error; 1274 return ctx->Fog.Enabled; 1275 case GL_LIGHTING: 1276 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1277 goto invalid_enum_error; 1278 return ctx->Light.Enabled; 1279 case GL_LIGHT0: 1280 case GL_LIGHT1: 1281 case GL_LIGHT2: 1282 case GL_LIGHT3: 1283 case GL_LIGHT4: 1284 case GL_LIGHT5: 1285 case GL_LIGHT6: 1286 case GL_LIGHT7: 1287 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1288 goto invalid_enum_error; 1289 return ctx->Light.Light[cap-GL_LIGHT0].Enabled; 1290 case GL_LINE_SMOOTH: 1291 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1292 goto invalid_enum_error; 1293 return ctx->Line.SmoothFlag; 1294 case GL_LINE_STIPPLE: 1295 if (ctx->API != API_OPENGL) 1296 goto invalid_enum_error; 1297 return ctx->Line.StippleFlag; 1298 case GL_INDEX_LOGIC_OP: 1299 if (ctx->API != API_OPENGL) 1300 goto invalid_enum_error; 1301 return ctx->Color.IndexLogicOpEnabled; 1302 case GL_COLOR_LOGIC_OP: 1303 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1304 goto invalid_enum_error; 1305 return ctx->Color.ColorLogicOpEnabled; 1306 case GL_MAP1_COLOR_4: 1307 if (ctx->API != API_OPENGL) 1308 goto invalid_enum_error; 1309 return ctx->Eval.Map1Color4; 1310 case GL_MAP1_INDEX: 1311 if (ctx->API != API_OPENGL) 1312 goto invalid_enum_error; 1313 return ctx->Eval.Map1Index; 1314 case GL_MAP1_NORMAL: 1315 if (ctx->API != API_OPENGL) 1316 goto invalid_enum_error; 1317 return ctx->Eval.Map1Normal; 1318 case GL_MAP1_TEXTURE_COORD_1: 1319 if (ctx->API != API_OPENGL) 1320 goto invalid_enum_error; 1321 return ctx->Eval.Map1TextureCoord1; 1322 case GL_MAP1_TEXTURE_COORD_2: 1323 if (ctx->API != API_OPENGL) 1324 goto invalid_enum_error; 1325 return ctx->Eval.Map1TextureCoord2; 1326 case GL_MAP1_TEXTURE_COORD_3: 1327 if (ctx->API != API_OPENGL) 1328 goto invalid_enum_error; 1329 return ctx->Eval.Map1TextureCoord3; 1330 case GL_MAP1_TEXTURE_COORD_4: 1331 if (ctx->API != API_OPENGL) 1332 goto invalid_enum_error; 1333 return ctx->Eval.Map1TextureCoord4; 1334 case GL_MAP1_VERTEX_3: 1335 if (ctx->API != API_OPENGL) 1336 goto invalid_enum_error; 1337 return ctx->Eval.Map1Vertex3; 1338 case GL_MAP1_VERTEX_4: 1339 if (ctx->API != API_OPENGL) 1340 goto invalid_enum_error; 1341 return ctx->Eval.Map1Vertex4; 1342 case GL_MAP2_COLOR_4: 1343 if (ctx->API != API_OPENGL) 1344 goto invalid_enum_error; 1345 return ctx->Eval.Map2Color4; 1346 case GL_MAP2_INDEX: 1347 if (ctx->API != API_OPENGL) 1348 goto invalid_enum_error; 1349 return ctx->Eval.Map2Index; 1350 case GL_MAP2_NORMAL: 1351 if (ctx->API != API_OPENGL) 1352 goto invalid_enum_error; 1353 return ctx->Eval.Map2Normal; 1354 case GL_MAP2_TEXTURE_COORD_1: 1355 if (ctx->API != API_OPENGL) 1356 goto invalid_enum_error; 1357 return ctx->Eval.Map2TextureCoord1; 1358 case GL_MAP2_TEXTURE_COORD_2: 1359 if (ctx->API != API_OPENGL) 1360 goto invalid_enum_error; 1361 return ctx->Eval.Map2TextureCoord2; 1362 case GL_MAP2_TEXTURE_COORD_3: 1363 if (ctx->API != API_OPENGL) 1364 goto invalid_enum_error; 1365 return ctx->Eval.Map2TextureCoord3; 1366 case GL_MAP2_TEXTURE_COORD_4: 1367 if (ctx->API != API_OPENGL) 1368 goto invalid_enum_error; 1369 return ctx->Eval.Map2TextureCoord4; 1370 case GL_MAP2_VERTEX_3: 1371 if (ctx->API != API_OPENGL) 1372 goto invalid_enum_error; 1373 return ctx->Eval.Map2Vertex3; 1374 case GL_MAP2_VERTEX_4: 1375 if (ctx->API != API_OPENGL) 1376 goto invalid_enum_error; 1377 return ctx->Eval.Map2Vertex4; 1378 case GL_NORMALIZE: 1379 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1380 goto invalid_enum_error; 1381 return ctx->Transform.Normalize; 1382 case GL_POINT_SMOOTH: 1383 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1384 goto invalid_enum_error; 1385 return ctx->Point.SmoothFlag; 1386 case GL_POLYGON_SMOOTH: 1387 if (!_mesa_is_desktop_gl(ctx)) 1388 goto invalid_enum_error; 1389 return ctx->Polygon.SmoothFlag; 1390 case GL_POLYGON_STIPPLE: 1391 if (ctx->API != API_OPENGL) 1392 goto invalid_enum_error; 1393 return ctx->Polygon.StippleFlag; 1394 case GL_POLYGON_OFFSET_POINT: 1395 if (!_mesa_is_desktop_gl(ctx)) 1396 goto invalid_enum_error; 1397 return ctx->Polygon.OffsetPoint; 1398 case GL_POLYGON_OFFSET_LINE: 1399 if (!_mesa_is_desktop_gl(ctx)) 1400 goto invalid_enum_error; 1401 return ctx->Polygon.OffsetLine; 1402 case GL_POLYGON_OFFSET_FILL: 1403 return ctx->Polygon.OffsetFill; 1404 case GL_RESCALE_NORMAL_EXT: 1405 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1406 goto invalid_enum_error; 1407 return ctx->Transform.RescaleNormals; 1408 case GL_SCISSOR_TEST: 1409 return ctx->Scissor.Enabled; 1410 case GL_STENCIL_TEST: 1411 return ctx->Stencil.Enabled; 1412 case GL_TEXTURE_1D: 1413 if (ctx->API != API_OPENGL) 1414 goto invalid_enum_error; 1415 return is_texture_enabled(ctx, TEXTURE_1D_BIT); 1416 case GL_TEXTURE_2D: 1417 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1418 goto invalid_enum_error; 1419 return is_texture_enabled(ctx, TEXTURE_2D_BIT); 1420 case GL_TEXTURE_3D: 1421 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1422 goto invalid_enum_error; 1423 return is_texture_enabled(ctx, TEXTURE_3D_BIT); 1424 case GL_TEXTURE_GEN_S: 1425 case GL_TEXTURE_GEN_T: 1426 case GL_TEXTURE_GEN_R: 1427 case GL_TEXTURE_GEN_Q: 1428 { 1429 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 1430 1431 if (ctx->API != API_OPENGL) 1432 goto invalid_enum_error; 1433 1434 if (texUnit) { 1435 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S); 1436 return (texUnit->TexGenEnabled & coordBit) ? GL_TRUE : GL_FALSE; 1437 } 1438 } 1439 return GL_FALSE; 1440 #if FEATURE_ES1 1441 case GL_TEXTURE_GEN_STR_OES: 1442 { 1443 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx); 1444 1445 if (ctx->API != API_OPENGLES) 1446 goto invalid_enum_error; 1447 1448 if (texUnit) { 1449 return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS 1450 ? GL_TRUE : GL_FALSE; 1451 } 1452 } 1453 #endif 1454 1455 /* client-side state */ 1456 case GL_VERTEX_ARRAY: 1457 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1458 goto invalid_enum_error; 1459 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POS].Enabled != 0); 1460 case GL_NORMAL_ARRAY: 1461 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1462 goto invalid_enum_error; 1463 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_NORMAL].Enabled != 0); 1464 case GL_COLOR_ARRAY: 1465 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1466 goto invalid_enum_error; 1467 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR0].Enabled != 0); 1468 case GL_INDEX_ARRAY: 1469 if (ctx->API != API_OPENGL) 1470 goto invalid_enum_error; 1471 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR_INDEX].Enabled != 0); 1472 case GL_TEXTURE_COORD_ARRAY: 1473 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1474 goto invalid_enum_error; 1475 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_TEX(ctx->Array.ActiveTexture)] 1476 .Enabled != 0); 1477 case GL_EDGE_FLAG_ARRAY: 1478 if (ctx->API != API_OPENGL) 1479 goto invalid_enum_error; 1480 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_EDGEFLAG].Enabled != 0); 1481 case GL_FOG_COORDINATE_ARRAY_EXT: 1482 if (ctx->API != API_OPENGL) 1483 goto invalid_enum_error; 1484 CHECK_EXTENSION(EXT_fog_coord); 1485 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_FOG].Enabled != 0); 1486 case GL_SECONDARY_COLOR_ARRAY_EXT: 1487 if (ctx->API != API_OPENGL) 1488 goto invalid_enum_error; 1489 CHECK_EXTENSION(EXT_secondary_color); 1490 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_COLOR1].Enabled != 0); 1491 #if FEATURE_point_size_array 1492 case GL_POINT_SIZE_ARRAY_OES: 1493 if (ctx->API != API_OPENGLES) 1494 goto invalid_enum_error; 1495 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_POINT_SIZE].Enabled != 0); 1496 #endif 1497 1498 /* GL_ARB_texture_cube_map */ 1499 case GL_TEXTURE_CUBE_MAP_ARB: 1500 CHECK_EXTENSION(ARB_texture_cube_map); 1501 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT); 1502 1503 /* GL_EXT_secondary_color */ 1504 case GL_COLOR_SUM_EXT: 1505 if (ctx->API != API_OPENGL) 1506 goto invalid_enum_error; 1507 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program); 1508 return ctx->Fog.ColorSumEnabled; 1509 1510 /* GL_ARB_multisample */ 1511 case GL_MULTISAMPLE_ARB: 1512 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1513 goto invalid_enum_error; 1514 return ctx->Multisample.Enabled; 1515 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB: 1516 return ctx->Multisample.SampleAlphaToCoverage; 1517 case GL_SAMPLE_ALPHA_TO_ONE_ARB: 1518 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES) 1519 goto invalid_enum_error; 1520 return ctx->Multisample.SampleAlphaToOne; 1521 case GL_SAMPLE_COVERAGE_ARB: 1522 return ctx->Multisample.SampleCoverage; 1523 case GL_SAMPLE_COVERAGE_INVERT_ARB: 1524 if (!_mesa_is_desktop_gl(ctx)) 1525 goto invalid_enum_error; 1526 return ctx->Multisample.SampleCoverageInvert; 1527 1528 /* GL_IBM_rasterpos_clip */ 1529 case GL_RASTER_POSITION_UNCLIPPED_IBM: 1530 if (ctx->API != API_OPENGL) 1531 goto invalid_enum_error; 1532 CHECK_EXTENSION(IBM_rasterpos_clip); 1533 return ctx->Transform.RasterPositionUnclipped; 1534 1535 /* GL_NV_point_sprite */ 1536 case GL_POINT_SPRITE_NV: 1537 if (ctx->API != API_OPENGL && ctx->API != API_OPENGLES) 1538 goto invalid_enum_error; 1539 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite) 1540 return ctx->Point.PointSprite; 1541 1542 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program 1543 case GL_VERTEX_PROGRAM_ARB: 1544 if (ctx->API != API_OPENGL) 1545 goto invalid_enum_error; 1546 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1547 return ctx->VertexProgram.Enabled; 1548 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB: 1549 /* This was added with ARB_vertex_program, but it is also used with 1550 * GLSL vertex shaders on desktop. 1551 */ 1552 if (!_mesa_is_desktop_gl(ctx)) 1553 goto invalid_enum_error; 1554 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1555 return ctx->VertexProgram.PointSizeEnabled; 1556 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB: 1557 if (ctx->API != API_OPENGL) 1558 goto invalid_enum_error; 1559 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program); 1560 return ctx->VertexProgram.TwoSideEnabled; 1561 #endif 1562 #if FEATURE_NV_vertex_program 1563 case GL_VERTEX_ATTRIB_ARRAY0_NV: 1564 case GL_VERTEX_ATTRIB_ARRAY1_NV: 1565 case GL_VERTEX_ATTRIB_ARRAY2_NV: 1566 case GL_VERTEX_ATTRIB_ARRAY3_NV: 1567 case GL_VERTEX_ATTRIB_ARRAY4_NV: 1568 case GL_VERTEX_ATTRIB_ARRAY5_NV: 1569 case GL_VERTEX_ATTRIB_ARRAY6_NV: 1570 case GL_VERTEX_ATTRIB_ARRAY7_NV: 1571 case GL_VERTEX_ATTRIB_ARRAY8_NV: 1572 case GL_VERTEX_ATTRIB_ARRAY9_NV: 1573 case GL_VERTEX_ATTRIB_ARRAY10_NV: 1574 case GL_VERTEX_ATTRIB_ARRAY11_NV: 1575 case GL_VERTEX_ATTRIB_ARRAY12_NV: 1576 case GL_VERTEX_ATTRIB_ARRAY13_NV: 1577 case GL_VERTEX_ATTRIB_ARRAY14_NV: 1578 case GL_VERTEX_ATTRIB_ARRAY15_NV: 1579 if (ctx->API != API_OPENGL) 1580 goto invalid_enum_error; 1581 CHECK_EXTENSION(NV_vertex_program); 1582 { 1583 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV; 1584 ASSERT(VERT_ATTRIB_GENERIC(n) < Elements(ctx->Array.ArrayObj->VertexAttrib)); 1585 return (ctx->Array.ArrayObj->VertexAttrib[VERT_ATTRIB_GENERIC(n)].Enabled != 0); 1586 } 1587 case GL_MAP1_VERTEX_ATTRIB0_4_NV: 1588 case GL_MAP1_VERTEX_ATTRIB1_4_NV: 1589 case GL_MAP1_VERTEX_ATTRIB2_4_NV: 1590 case GL_MAP1_VERTEX_ATTRIB3_4_NV: 1591 case GL_MAP1_VERTEX_ATTRIB4_4_NV: 1592 case GL_MAP1_VERTEX_ATTRIB5_4_NV: 1593 case GL_MAP1_VERTEX_ATTRIB6_4_NV: 1594 case GL_MAP1_VERTEX_ATTRIB7_4_NV: 1595 case GL_MAP1_VERTEX_ATTRIB8_4_NV: 1596 case GL_MAP1_VERTEX_ATTRIB9_4_NV: 1597 case GL_MAP1_VERTEX_ATTRIB10_4_NV: 1598 case GL_MAP1_VERTEX_ATTRIB11_4_NV: 1599 case GL_MAP1_VERTEX_ATTRIB12_4_NV: 1600 case GL_MAP1_VERTEX_ATTRIB13_4_NV: 1601 case GL_MAP1_VERTEX_ATTRIB14_4_NV: 1602 case GL_MAP1_VERTEX_ATTRIB15_4_NV: 1603 if (ctx->API != API_OPENGL) 1604 goto invalid_enum_error; 1605 CHECK_EXTENSION(NV_vertex_program); 1606 { 1607 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV); 1608 return ctx->Eval.Map1Attrib[map]; 1609 } 1610 case GL_MAP2_VERTEX_ATTRIB0_4_NV: 1611 case GL_MAP2_VERTEX_ATTRIB1_4_NV: 1612 case GL_MAP2_VERTEX_ATTRIB2_4_NV: 1613 case GL_MAP2_VERTEX_ATTRIB3_4_NV: 1614 case GL_MAP2_VERTEX_ATTRIB4_4_NV: 1615 case GL_MAP2_VERTEX_ATTRIB5_4_NV: 1616 case GL_MAP2_VERTEX_ATTRIB6_4_NV: 1617 case GL_MAP2_VERTEX_ATTRIB7_4_NV: 1618 case GL_MAP2_VERTEX_ATTRIB8_4_NV: 1619 case GL_MAP2_VERTEX_ATTRIB9_4_NV: 1620 case GL_MAP2_VERTEX_ATTRIB10_4_NV: 1621 case GL_MAP2_VERTEX_ATTRIB11_4_NV: 1622 case GL_MAP2_VERTEX_ATTRIB12_4_NV: 1623 case GL_MAP2_VERTEX_ATTRIB13_4_NV: 1624 case GL_MAP2_VERTEX_ATTRIB14_4_NV: 1625 case GL_MAP2_VERTEX_ATTRIB15_4_NV: 1626 if (ctx->API != API_OPENGL) 1627 goto invalid_enum_error; 1628 CHECK_EXTENSION(NV_vertex_program); 1629 { 1630 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV); 1631 return ctx->Eval.Map2Attrib[map]; 1632 } 1633 #endif /* FEATURE_NV_vertex_program */ 1634 1635 #if FEATURE_NV_fragment_program 1636 case GL_FRAGMENT_PROGRAM_NV: 1637 if (ctx->API != API_OPENGL) 1638 goto invalid_enum_error; 1639 CHECK_EXTENSION(NV_fragment_program); 1640 return ctx->FragmentProgram.Enabled; 1641 #endif /* FEATURE_NV_fragment_program */ 1642 1643 /* GL_NV_texture_rectangle */ 1644 case GL_TEXTURE_RECTANGLE_NV: 1645 if (ctx->API != API_OPENGL) 1646 goto invalid_enum_error; 1647 CHECK_EXTENSION(NV_texture_rectangle); 1648 return is_texture_enabled(ctx, TEXTURE_RECT_BIT); 1649 1650 /* GL_EXT_stencil_two_side */ 1651 case GL_STENCIL_TEST_TWO_SIDE_EXT: 1652 if (ctx->API != API_OPENGL) 1653 goto invalid_enum_error; 1654 CHECK_EXTENSION(EXT_stencil_two_side); 1655 return ctx->Stencil.TestTwoSide; 1656 1657 #if FEATURE_ARB_fragment_program 1658 case GL_FRAGMENT_PROGRAM_ARB: 1659 if (ctx->API != API_OPENGL) 1660 goto invalid_enum_error; 1661 return ctx->FragmentProgram.Enabled; 1662 #endif /* FEATURE_ARB_fragment_program */ 1663 1664 /* GL_EXT_depth_bounds_test */ 1665 case GL_DEPTH_BOUNDS_TEST_EXT: 1666 if (!_mesa_is_desktop_gl(ctx)) 1667 goto invalid_enum_error; 1668 CHECK_EXTENSION(EXT_depth_bounds_test); 1669 return ctx->Depth.BoundsTest; 1670 1671 /* GL_ARB_depth_clamp */ 1672 case GL_DEPTH_CLAMP: 1673 if (!_mesa_is_desktop_gl(ctx)) 1674 goto invalid_enum_error; 1675 CHECK_EXTENSION(ARB_depth_clamp); 1676 return ctx->Transform.DepthClamp; 1677 1678 #if FEATURE_ATI_fragment_shader 1679 case GL_FRAGMENT_SHADER_ATI: 1680 if (ctx->API != API_OPENGL) 1681 goto invalid_enum_error; 1682 CHECK_EXTENSION(ATI_fragment_shader); 1683 return ctx->ATIFragmentShader.Enabled; 1684 #endif /* FEATURE_ATI_fragment_shader */ 1685 1686 case GL_TEXTURE_CUBE_MAP_SEAMLESS: 1687 if (!_mesa_is_desktop_gl(ctx)) 1688 goto invalid_enum_error; 1689 CHECK_EXTENSION(ARB_seamless_cube_map); 1690 return ctx->Texture.CubeMapSeamless; 1691 1692 #if FEATURE_EXT_transform_feedback 1693 case GL_RASTERIZER_DISCARD: 1694 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1695 goto invalid_enum_error; 1696 CHECK_EXTENSION(EXT_transform_feedback); 1697 return ctx->RasterDiscard; 1698 #endif 1699 1700 /* GL_NV_primitive_restart */ 1701 case GL_PRIMITIVE_RESTART_NV: 1702 if (ctx->API != API_OPENGL || !ctx->Extensions.NV_primitive_restart) { 1703 goto invalid_enum_error; 1704 } 1705 return ctx->Array.PrimitiveRestart; 1706 1707 /* GL 3.1 primitive restart */ 1708 case GL_PRIMITIVE_RESTART: 1709 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) { 1710 goto invalid_enum_error; 1711 } 1712 return ctx->Array.PrimitiveRestart; 1713 1714 /* GL3.0 - GL_framebuffer_sRGB */ 1715 case GL_FRAMEBUFFER_SRGB_EXT: 1716 if (!_mesa_is_desktop_gl(ctx) && !_mesa_is_gles3(ctx)) 1717 goto invalid_enum_error; 1718 CHECK_EXTENSION(EXT_framebuffer_sRGB); 1719 return ctx->Color.sRGBEnabled; 1720 1721 /* GL_OES_EGL_image_external */ 1722 case GL_TEXTURE_EXTERNAL_OES: 1723 if (!_mesa_is_gles(ctx)) 1724 goto invalid_enum_error; 1725 CHECK_EXTENSION(OES_EGL_image_external); 1726 return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT); 1727 1728 default: 1729 goto invalid_enum_error; 1730 } 1731 1732 return GL_FALSE; 1733 1734 invalid_enum_error: 1735 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(%s)", 1736 _mesa_lookup_enum_by_nr(cap)); 1737 return GL_FALSE; 1738 } 1739
