3 * Enable/disable/query GL capabilities.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
26 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 #include "simple_list.h"
37 #include "mfeatures.h"
40 #include "api_arrayelt.h"
45 #define CHECK_EXTENSION(EXTNAME, CAP) \
46 if (!ctx->Extensions.EXTNAME) { \
47 goto invalid_enum_error; \
52 * Helper to enable/disable client-side state.
55 client_state(struct gl_context *ctx, GLenum cap, GLboolean state)
57 struct gl_array_object *arrayObj = ctx->Array.ArrayObj;
63 var = &arrayObj->Vertex.Enabled;
64 flag = _NEW_ARRAY_VERTEX;
67 var = &arrayObj->Normal.Enabled;
68 flag = _NEW_ARRAY_NORMAL;
71 var = &arrayObj->Color.Enabled;
72 flag = _NEW_ARRAY_COLOR0;
75 var = &arrayObj->Index.Enabled;
76 flag = _NEW_ARRAY_INDEX;
78 case GL_TEXTURE_COORD_ARRAY:
79 var = &arrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled;
80 flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture);
82 case GL_EDGE_FLAG_ARRAY:
83 var = &arrayObj->EdgeFlag.Enabled;
84 flag = _NEW_ARRAY_EDGEFLAG;
86 case GL_FOG_COORDINATE_ARRAY_EXT:
87 var = &arrayObj->FogCoord.Enabled;
88 flag = _NEW_ARRAY_FOGCOORD;
90 case GL_SECONDARY_COLOR_ARRAY_EXT:
91 var = &arrayObj->SecondaryColor.Enabled;
92 flag = _NEW_ARRAY_COLOR1;
95 #if FEATURE_point_size_array
96 case GL_POINT_SIZE_ARRAY_OES:
97 var = &arrayObj->PointSize.Enabled;
98 flag = _NEW_ARRAY_POINT_SIZE;
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);
121 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
122 ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));
123 var = &arrayObj->VertexAttrib[n].Enabled;
124 flag = _NEW_ARRAY_ATTRIB(n);
127 #endif /* FEATURE_NV_vertex_program */
129 /* GL_NV_primitive_restart */
130 case GL_PRIMITIVE_RESTART_NV:
131 if (!ctx->Extensions.NV_primitive_restart) {
132 goto invalid_enum_error;
134 var = &ctx->Array.PrimitiveRestart;
139 goto invalid_enum_error;
145 FLUSH_VERTICES(ctx, _NEW_ARRAY);
146 ctx->Array.NewState |= flag;
148 _ae_invalidate_state(ctx, _NEW_ARRAY);
153 ctx->Array.ArrayObj->_Enabled |= flag;
155 ctx->Array.ArrayObj->_Enabled &= ~flag;
157 if (ctx->Driver.Enable) {
158 ctx->Driver.Enable( ctx, cap, state );
164 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)",
165 state ? "Enable" : "Disable", cap);
170 * Enable GL capability.
171 * \param cap state to enable/disable.
173 * Get's the current context, assures that we're outside glBegin()/glEnd() and
174 * calls client_state().
177 _mesa_EnableClientState( GLenum cap )
179 GET_CURRENT_CONTEXT(ctx);
180 ASSERT_OUTSIDE_BEGIN_END(ctx);
181 client_state( ctx, cap, GL_TRUE );
186 * Disable GL capability.
187 * \param cap state to enable/disable.
189 * Get's the current context, assures that we're outside glBegin()/glEnd() and
190 * calls client_state().
193 _mesa_DisableClientState( GLenum cap )
195 GET_CURRENT_CONTEXT(ctx);
196 ASSERT_OUTSIDE_BEGIN_END(ctx);
197 client_state( ctx, cap, GL_FALSE );
201 #undef CHECK_EXTENSION
202 #define CHECK_EXTENSION(EXTNAME, CAP) \
203 if (!ctx->Extensions.EXTNAME) { \
204 goto invalid_enum_error; \
207 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
208 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
209 goto invalid_enum_error; \
215 * Return pointer to current texture unit for setting/getting coordinate
217 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active
218 * texture unit is higher than the number of supported coordinate units.
220 static struct gl_texture_unit *
221 get_texcoord_unit(struct gl_context *ctx)
223 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
224 _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");
228 return &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
234 * Helper function to enable or disable a texture target.
235 * \param bit one of the TEXTURE_x_BIT values
236 * \return GL_TRUE if state is changing or GL_FALSE if no change
239 enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit)
241 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
242 const GLbitfield newenabled = state
243 ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit);
245 if (texUnit->Enabled == newenabled)
248 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
249 texUnit->Enabled = newenabled;
255 * Helper function to enable or disable state.
257 * \param ctx GL context.
258 * \param cap the state to enable/disable
259 * \param state whether to enable or disable the specified capability.
261 * Updates the current context and flushes the vertices as needed. For
262 * capabilities associated with extensions it verifies that those extensions
263 * are effectivly present before updating. Notifies the driver via
264 * dd_function_table::Enable.
267 _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
269 if (MESA_VERBOSE & VERBOSE_API)
270 _mesa_debug(ctx, "%s %s (newstate is %x)\n",
271 state ? "glEnable" : "glDisable",
272 _mesa_lookup_enum_by_nr(cap),
277 if (ctx->Color.AlphaEnabled == state)
279 FLUSH_VERTICES(ctx, _NEW_COLOR);
280 ctx->Color.AlphaEnabled = state;
283 if (ctx->Eval.AutoNormal == state)
285 FLUSH_VERTICES(ctx, _NEW_EVAL);
286 ctx->Eval.AutoNormal = state;
290 GLbitfield newEnabled =
291 state * ((1 << ctx->Const.MaxDrawBuffers) - 1);
292 if (newEnabled != ctx->Color.BlendEnabled) {
293 FLUSH_VERTICES(ctx, _NEW_COLOR);
294 ctx->Color.BlendEnabled = newEnabled;
306 const GLuint p = cap - GL_CLIP_PLANE0;
308 if ((ctx->Transform.ClipPlanesEnabled & (1 << p))
309 == ((GLuint) state << p))
312 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
315 ctx->Transform.ClipPlanesEnabled |= (1 << p);
316 _mesa_update_clip_plane(ctx, p);
319 ctx->Transform.ClipPlanesEnabled &= ~(1 << p);
324 case GL_COLOR_MATERIAL:
325 if (ctx->Light.ColorMaterialEnabled == state)
327 FLUSH_VERTICES(ctx, _NEW_LIGHT);
328 FLUSH_CURRENT(ctx, 0);
329 ctx->Light.ColorMaterialEnabled = state;
331 _mesa_update_color_material( ctx,
332 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
336 if (ctx->Polygon.CullFlag == state)
338 FLUSH_VERTICES(ctx, _NEW_POLYGON);
339 ctx->Polygon.CullFlag = state;
342 if (ctx->Depth.Test == state)
344 FLUSH_VERTICES(ctx, _NEW_DEPTH);
345 ctx->Depth.Test = state;
348 if (ctx->Color.DitherFlag == state)
350 FLUSH_VERTICES(ctx, _NEW_COLOR);
351 ctx->Color.DitherFlag = state;
354 if (ctx->Fog.Enabled == state)
356 FLUSH_VERTICES(ctx, _NEW_FOG);
357 ctx->Fog.Enabled = state;
367 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)
369 FLUSH_VERTICES(ctx, _NEW_LIGHT);
370 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
372 insert_at_tail(&ctx->Light.EnabledList,
373 &ctx->Light.Light[cap-GL_LIGHT0]);
376 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
380 if (ctx->Light.Enabled == state)
382 FLUSH_VERTICES(ctx, _NEW_LIGHT);
383 ctx->Light.Enabled = state;
384 if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
385 ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
387 ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
390 if (ctx->Line.SmoothFlag == state)
392 FLUSH_VERTICES(ctx, _NEW_LINE);
393 ctx->Line.SmoothFlag = state;
394 ctx->_TriangleCaps ^= DD_LINE_SMOOTH;
396 case GL_LINE_STIPPLE:
397 if (ctx->Line.StippleFlag == state)
399 FLUSH_VERTICES(ctx, _NEW_LINE);
400 ctx->Line.StippleFlag = state;
401 ctx->_TriangleCaps ^= DD_LINE_STIPPLE;
403 case GL_INDEX_LOGIC_OP:
404 if (ctx->Color.IndexLogicOpEnabled == state)
406 FLUSH_VERTICES(ctx, _NEW_COLOR);
407 ctx->Color.IndexLogicOpEnabled = state;
409 case GL_COLOR_LOGIC_OP:
410 if (ctx->Color.ColorLogicOpEnabled == state)
412 FLUSH_VERTICES(ctx, _NEW_COLOR);
413 ctx->Color.ColorLogicOpEnabled = state;
415 case GL_MAP1_COLOR_4:
416 if (ctx->Eval.Map1Color4 == state)
418 FLUSH_VERTICES(ctx, _NEW_EVAL);
419 ctx->Eval.Map1Color4 = state;
422 if (ctx->Eval.Map1Index == state)
424 FLUSH_VERTICES(ctx, _NEW_EVAL);
425 ctx->Eval.Map1Index = state;
428 if (ctx->Eval.Map1Normal == state)
430 FLUSH_VERTICES(ctx, _NEW_EVAL);
431 ctx->Eval.Map1Normal = state;
433 case GL_MAP1_TEXTURE_COORD_1:
434 if (ctx->Eval.Map1TextureCoord1 == state)
436 FLUSH_VERTICES(ctx, _NEW_EVAL);
437 ctx->Eval.Map1TextureCoord1 = state;
439 case GL_MAP1_TEXTURE_COORD_2:
440 if (ctx->Eval.Map1TextureCoord2 == state)
442 FLUSH_VERTICES(ctx, _NEW_EVAL);
443 ctx->Eval.Map1TextureCoord2 = state;
445 case GL_MAP1_TEXTURE_COORD_3:
446 if (ctx->Eval.Map1TextureCoord3 == state)
448 FLUSH_VERTICES(ctx, _NEW_EVAL);
449 ctx->Eval.Map1TextureCoord3 = state;
451 case GL_MAP1_TEXTURE_COORD_4:
452 if (ctx->Eval.Map1TextureCoord4 == state)
454 FLUSH_VERTICES(ctx, _NEW_EVAL);
455 ctx->Eval.Map1TextureCoord4 = state;
457 case GL_MAP1_VERTEX_3:
458 if (ctx->Eval.Map1Vertex3 == state)
460 FLUSH_VERTICES(ctx, _NEW_EVAL);
461 ctx->Eval.Map1Vertex3 = state;
463 case GL_MAP1_VERTEX_4:
464 if (ctx->Eval.Map1Vertex4 == state)
466 FLUSH_VERTICES(ctx, _NEW_EVAL);
467 ctx->Eval.Map1Vertex4 = state;
469 case GL_MAP2_COLOR_4:
470 if (ctx->Eval.Map2Color4 == state)
472 FLUSH_VERTICES(ctx, _NEW_EVAL);
473 ctx->Eval.Map2Color4 = state;
476 if (ctx->Eval.Map2Index == state)
478 FLUSH_VERTICES(ctx, _NEW_EVAL);
479 ctx->Eval.Map2Index = state;
482 if (ctx->Eval.Map2Normal == state)
484 FLUSH_VERTICES(ctx, _NEW_EVAL);
485 ctx->Eval.Map2Normal = state;
487 case GL_MAP2_TEXTURE_COORD_1:
488 if (ctx->Eval.Map2TextureCoord1 == state)
490 FLUSH_VERTICES(ctx, _NEW_EVAL);
491 ctx->Eval.Map2TextureCoord1 = state;
493 case GL_MAP2_TEXTURE_COORD_2:
494 if (ctx->Eval.Map2TextureCoord2 == state)
496 FLUSH_VERTICES(ctx, _NEW_EVAL);
497 ctx->Eval.Map2TextureCoord2 = state;
499 case GL_MAP2_TEXTURE_COORD_3:
500 if (ctx->Eval.Map2TextureCoord3 == state)
502 FLUSH_VERTICES(ctx, _NEW_EVAL);
503 ctx->Eval.Map2TextureCoord3 = state;
505 case GL_MAP2_TEXTURE_COORD_4:
506 if (ctx->Eval.Map2TextureCoord4 == state)
508 FLUSH_VERTICES(ctx, _NEW_EVAL);
509 ctx->Eval.Map2TextureCoord4 = state;
511 case GL_MAP2_VERTEX_3:
512 if (ctx->Eval.Map2Vertex3 == state)
514 FLUSH_VERTICES(ctx, _NEW_EVAL);
515 ctx->Eval.Map2Vertex3 = state;
517 case GL_MAP2_VERTEX_4:
518 if (ctx->Eval.Map2Vertex4 == state)
520 FLUSH_VERTICES(ctx, _NEW_EVAL);
521 ctx->Eval.Map2Vertex4 = state;
524 if (ctx->Transform.Normalize == state)
526 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
527 ctx->Transform.Normalize = state;
529 case GL_POINT_SMOOTH:
530 if (ctx->Point.SmoothFlag == state)
532 FLUSH_VERTICES(ctx, _NEW_POINT);
533 ctx->Point.SmoothFlag = state;
534 ctx->_TriangleCaps ^= DD_POINT_SMOOTH;
536 case GL_POLYGON_SMOOTH:
537 if (ctx->Polygon.SmoothFlag == state)
539 FLUSH_VERTICES(ctx, _NEW_POLYGON);
540 ctx->Polygon.SmoothFlag = state;
541 ctx->_TriangleCaps ^= DD_TRI_SMOOTH;
543 case GL_POLYGON_STIPPLE:
544 if (ctx->Polygon.StippleFlag == state)
546 FLUSH_VERTICES(ctx, _NEW_POLYGON);
547 ctx->Polygon.StippleFlag = state;
548 ctx->_TriangleCaps ^= DD_TRI_STIPPLE;
550 case GL_POLYGON_OFFSET_POINT:
551 if (ctx->Polygon.OffsetPoint == state)
553 FLUSH_VERTICES(ctx, _NEW_POLYGON);
554 ctx->Polygon.OffsetPoint = state;
556 case GL_POLYGON_OFFSET_LINE:
557 if (ctx->Polygon.OffsetLine == state)
559 FLUSH_VERTICES(ctx, _NEW_POLYGON);
560 ctx->Polygon.OffsetLine = state;
562 case GL_POLYGON_OFFSET_FILL:
563 /*case GL_POLYGON_OFFSET_EXT:*/
564 if (ctx->Polygon.OffsetFill == state)
566 FLUSH_VERTICES(ctx, _NEW_POLYGON);
567 ctx->Polygon.OffsetFill = state;
569 case GL_RESCALE_NORMAL_EXT:
570 if (ctx->Transform.RescaleNormals == state)
572 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
573 ctx->Transform.RescaleNormals = state;
575 case GL_SCISSOR_TEST:
576 if (ctx->Scissor.Enabled == state)
578 FLUSH_VERTICES(ctx, _NEW_SCISSOR);
579 ctx->Scissor.Enabled = state;
581 case GL_SHARED_TEXTURE_PALETTE_EXT:
582 if (ctx->Texture.SharedPalette == state)
584 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
585 ctx->Texture.SharedPalette = state;
587 case GL_STENCIL_TEST:
588 if (ctx->Stencil.Enabled == state)
590 FLUSH_VERTICES(ctx, _NEW_STENCIL);
591 ctx->Stencil.Enabled = state;
594 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
599 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
604 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
608 case GL_TEXTURE_GEN_S:
609 case GL_TEXTURE_GEN_T:
610 case GL_TEXTURE_GEN_R:
611 case GL_TEXTURE_GEN_Q:
613 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
615 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S);
616 GLbitfield newenabled = texUnit->TexGenEnabled & ~coordBit;
618 newenabled |= coordBit;
619 if (texUnit->TexGenEnabled == newenabled)
621 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
622 texUnit->TexGenEnabled = newenabled;
628 case GL_TEXTURE_GEN_STR_OES:
629 /* disable S, T, and R at the same time */
631 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
634 texUnit->TexGenEnabled & ~STR_BITS;
636 newenabled |= STR_BITS;
637 if (texUnit->TexGenEnabled == newenabled)
639 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
640 texUnit->TexGenEnabled = newenabled;
649 case GL_VERTEX_ARRAY:
650 case GL_NORMAL_ARRAY:
653 case GL_TEXTURE_COORD_ARRAY:
654 case GL_EDGE_FLAG_ARRAY:
655 case GL_FOG_COORDINATE_ARRAY_EXT:
656 case GL_SECONDARY_COLOR_ARRAY_EXT:
657 case GL_POINT_SIZE_ARRAY_OES:
658 client_state( ctx, cap, state );
661 /* GL_ARB_texture_cube_map */
662 case GL_TEXTURE_CUBE_MAP_ARB:
663 CHECK_EXTENSION(ARB_texture_cube_map, cap);
664 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {
669 /* GL_EXT_secondary_color */
670 case GL_COLOR_SUM_EXT:
671 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);
672 if (ctx->Fog.ColorSumEnabled == state)
674 FLUSH_VERTICES(ctx, _NEW_FOG);
675 ctx->Fog.ColorSumEnabled = state;
678 /* GL_ARB_multisample */
679 case GL_MULTISAMPLE_ARB:
680 if (ctx->Multisample.Enabled == state)
682 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
683 ctx->Multisample.Enabled = state;
685 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
686 if (ctx->Multisample.SampleAlphaToCoverage == state)
688 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
689 ctx->Multisample.SampleAlphaToCoverage = state;
691 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
692 if (ctx->Multisample.SampleAlphaToOne == state)
694 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
695 ctx->Multisample.SampleAlphaToOne = state;
697 case GL_SAMPLE_COVERAGE_ARB:
698 if (ctx->Multisample.SampleCoverage == state)
700 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
701 ctx->Multisample.SampleCoverage = state;
703 case GL_SAMPLE_COVERAGE_INVERT_ARB:
704 if (ctx->Multisample.SampleCoverageInvert == state)
706 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
707 ctx->Multisample.SampleCoverageInvert = state;
710 /* GL_IBM_rasterpos_clip */
711 case GL_RASTER_POSITION_UNCLIPPED_IBM:
712 CHECK_EXTENSION(IBM_rasterpos_clip, cap);
713 if (ctx->Transform.RasterPositionUnclipped == state)
715 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
716 ctx->Transform.RasterPositionUnclipped = state;
719 /* GL_NV_point_sprite */
720 case GL_POINT_SPRITE_NV:
721 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap);
722 if (ctx->Point.PointSprite == state)
724 FLUSH_VERTICES(ctx, _NEW_POINT);
725 ctx->Point.PointSprite = state;
728 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
729 case GL_VERTEX_PROGRAM_ARB:
730 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
731 if (ctx->VertexProgram.Enabled == state)
733 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
734 ctx->VertexProgram.Enabled = state;
736 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
737 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
738 if (ctx->VertexProgram.PointSizeEnabled == state)
740 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
741 ctx->VertexProgram.PointSizeEnabled = state;
743 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
744 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
745 if (ctx->VertexProgram.TwoSideEnabled == state)
747 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
748 ctx->VertexProgram.TwoSideEnabled = state;
751 #if FEATURE_NV_vertex_program
752 case GL_MAP1_VERTEX_ATTRIB0_4_NV:
753 case GL_MAP1_VERTEX_ATTRIB1_4_NV:
754 case GL_MAP1_VERTEX_ATTRIB2_4_NV:
755 case GL_MAP1_VERTEX_ATTRIB3_4_NV:
756 case GL_MAP1_VERTEX_ATTRIB4_4_NV:
757 case GL_MAP1_VERTEX_ATTRIB5_4_NV:
758 case GL_MAP1_VERTEX_ATTRIB6_4_NV:
759 case GL_MAP1_VERTEX_ATTRIB7_4_NV:
760 case GL_MAP1_VERTEX_ATTRIB8_4_NV:
761 case GL_MAP1_VERTEX_ATTRIB9_4_NV:
762 case GL_MAP1_VERTEX_ATTRIB10_4_NV:
763 case GL_MAP1_VERTEX_ATTRIB11_4_NV:
764 case GL_MAP1_VERTEX_ATTRIB12_4_NV:
765 case GL_MAP1_VERTEX_ATTRIB13_4_NV:
766 case GL_MAP1_VERTEX_ATTRIB14_4_NV:
767 case GL_MAP1_VERTEX_ATTRIB15_4_NV:
768 CHECK_EXTENSION(NV_vertex_program, cap);
770 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
771 FLUSH_VERTICES(ctx, _NEW_EVAL);
772 ctx->Eval.Map1Attrib[map] = state;
775 case GL_MAP2_VERTEX_ATTRIB0_4_NV:
776 case GL_MAP2_VERTEX_ATTRIB1_4_NV:
777 case GL_MAP2_VERTEX_ATTRIB2_4_NV:
778 case GL_MAP2_VERTEX_ATTRIB3_4_NV:
779 case GL_MAP2_VERTEX_ATTRIB4_4_NV:
780 case GL_MAP2_VERTEX_ATTRIB5_4_NV:
781 case GL_MAP2_VERTEX_ATTRIB6_4_NV:
782 case GL_MAP2_VERTEX_ATTRIB7_4_NV:
783 case GL_MAP2_VERTEX_ATTRIB8_4_NV:
784 case GL_MAP2_VERTEX_ATTRIB9_4_NV:
785 case GL_MAP2_VERTEX_ATTRIB10_4_NV:
786 case GL_MAP2_VERTEX_ATTRIB11_4_NV:
787 case GL_MAP2_VERTEX_ATTRIB12_4_NV:
788 case GL_MAP2_VERTEX_ATTRIB13_4_NV:
789 case GL_MAP2_VERTEX_ATTRIB14_4_NV:
790 case GL_MAP2_VERTEX_ATTRIB15_4_NV:
791 CHECK_EXTENSION(NV_vertex_program, cap);
793 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
794 FLUSH_VERTICES(ctx, _NEW_EVAL);
795 ctx->Eval.Map2Attrib[map] = state;
798 #endif /* FEATURE_NV_vertex_program */
800 #if FEATURE_NV_fragment_program
801 case GL_FRAGMENT_PROGRAM_NV:
802 CHECK_EXTENSION(NV_fragment_program, cap);
803 if (ctx->FragmentProgram.Enabled == state)
805 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
806 ctx->FragmentProgram.Enabled = state;
808 #endif /* FEATURE_NV_fragment_program */
810 /* GL_NV_texture_rectangle */
811 case GL_TEXTURE_RECTANGLE_NV:
812 CHECK_EXTENSION(NV_texture_rectangle, cap);
813 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
818 /* GL_EXT_stencil_two_side */
819 case GL_STENCIL_TEST_TWO_SIDE_EXT:
820 CHECK_EXTENSION(EXT_stencil_two_side, cap);
821 if (ctx->Stencil.TestTwoSide == state)
823 FLUSH_VERTICES(ctx, _NEW_STENCIL);
824 ctx->Stencil.TestTwoSide = state;
826 ctx->Stencil._BackFace = 2;
827 ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
829 ctx->Stencil._BackFace = 1;
830 ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;
834 #if FEATURE_ARB_fragment_program
835 case GL_FRAGMENT_PROGRAM_ARB:
836 CHECK_EXTENSION(ARB_fragment_program, cap);
837 if (ctx->FragmentProgram.Enabled == state)
839 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
840 ctx->FragmentProgram.Enabled = state;
842 #endif /* FEATURE_ARB_fragment_program */
844 /* GL_EXT_depth_bounds_test */
845 case GL_DEPTH_BOUNDS_TEST_EXT:
846 CHECK_EXTENSION(EXT_depth_bounds_test, cap);
847 if (ctx->Depth.BoundsTest == state)
849 FLUSH_VERTICES(ctx, _NEW_DEPTH);
850 ctx->Depth.BoundsTest = state;
854 if (ctx->Transform.DepthClamp == state)
856 CHECK_EXTENSION(ARB_depth_clamp, cap);
857 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
858 ctx->Transform.DepthClamp = state;
861 #if FEATURE_ATI_fragment_shader
862 case GL_FRAGMENT_SHADER_ATI:
863 CHECK_EXTENSION(ATI_fragment_shader, cap);
864 if (ctx->ATIFragmentShader.Enabled == state)
866 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
867 ctx->ATIFragmentShader.Enabled = state;
871 /* GL_MESA_texture_array */
872 case GL_TEXTURE_1D_ARRAY_EXT:
873 CHECK_EXTENSION(MESA_texture_array, cap);
874 if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) {
879 case GL_TEXTURE_2D_ARRAY_EXT:
880 CHECK_EXTENSION(MESA_texture_array, cap);
881 if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) {
886 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
887 CHECK_EXTENSION(ARB_seamless_cube_map, cap);
888 if (ctx->Texture.CubeMapSeamless != state) {
889 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
890 ctx->Texture.CubeMapSeamless = state;
894 #if FEATURE_EXT_transform_feedback
895 case GL_RASTERIZER_DISCARD:
896 CHECK_EXTENSION(EXT_transform_feedback, cap);
897 if (ctx->TransformFeedback.RasterDiscard != state) {
898 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
899 ctx->TransformFeedback.RasterDiscard = state;
904 /* GL 3.1 primitive restart. Note: this enum is different from
905 * GL_PRIMITIVE_RESTART_NV (which is client state).
907 case GL_PRIMITIVE_RESTART:
908 if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
909 goto invalid_enum_error;
911 if (ctx->Array.PrimitiveRestart != state) {
912 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
913 ctx->Array.PrimitiveRestart = state;
917 /* GL3.0 - GL_framebuffer_sRGB */
918 case GL_FRAMEBUFFER_SRGB_EXT:
919 CHECK_EXTENSION(EXT_framebuffer_sRGB, cap);
920 FLUSH_VERTICES(ctx, _NEW_BUFFERS);
921 ctx->Color.sRGBEnabled = state;
925 goto invalid_enum_error;
928 if (ctx->Driver.Enable) {
929 ctx->Driver.Enable( ctx, cap, state );
935 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)",
936 state ? "Enable" : "Disable", cap);
941 * Enable GL capability. Called by glEnable()
942 * \param cap state to enable.
945 _mesa_Enable( GLenum cap )
947 GET_CURRENT_CONTEXT(ctx);
948 ASSERT_OUTSIDE_BEGIN_END(ctx);
950 _mesa_set_enable( ctx, cap, GL_TRUE );
955 * Disable GL capability. Called by glDisable()
956 * \param cap state to disable.
959 _mesa_Disable( GLenum cap )
961 GET_CURRENT_CONTEXT(ctx);
962 ASSERT_OUTSIDE_BEGIN_END(ctx);
964 _mesa_set_enable( ctx, cap, GL_FALSE );
970 * Enable/disable an indexed state var.
973 _mesa_set_enablei(struct gl_context *ctx, GLenum cap,
974 GLuint index, GLboolean state)
976 ASSERT(state == 0 || state == 1);
979 if (!ctx->Extensions.EXT_draw_buffers2) {
980 goto invalid_enum_error;
982 if (index >= ctx->Const.MaxDrawBuffers) {
983 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",
984 state ? "glEnableIndexed" : "glDisableIndexed", index);
987 if (((ctx->Color.BlendEnabled >> index) & 1) != state) {
988 FLUSH_VERTICES(ctx, _NEW_COLOR);
990 ctx->Color.BlendEnabled |= (1 << index);
992 ctx->Color.BlendEnabled &= ~(1 << index);
996 goto invalid_enum_error;
1001 _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)",
1002 state ? "glEnablei" : "glDisablei",
1003 _mesa_lookup_enum_by_nr(cap));
1008 _mesa_DisableIndexed( GLenum cap, GLuint index )
1010 GET_CURRENT_CONTEXT(ctx);
1011 ASSERT_OUTSIDE_BEGIN_END(ctx);
1012 _mesa_set_enablei(ctx, cap, index, GL_FALSE);
1017 _mesa_EnableIndexed( GLenum cap, GLuint index )
1019 GET_CURRENT_CONTEXT(ctx);
1020 ASSERT_OUTSIDE_BEGIN_END(ctx);
1021 _mesa_set_enablei(ctx, cap, index, GL_TRUE);
1025 GLboolean GLAPIENTRY
1026 _mesa_IsEnabledIndexed( GLenum cap, GLuint index )
1028 GET_CURRENT_CONTEXT(ctx);
1029 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1032 if (index >= ctx->Const.MaxDrawBuffers) {
1033 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",
1037 return (ctx->Color.BlendEnabled >> index) & 1;
1039 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)",
1040 _mesa_lookup_enum_by_nr(cap));
1048 #undef CHECK_EXTENSION
1049 #define CHECK_EXTENSION(EXTNAME) \
1050 if (!ctx->Extensions.EXTNAME) { \
1051 goto invalid_enum_error; \
1054 #undef CHECK_EXTENSION2
1055 #define CHECK_EXTENSION2(EXT1, EXT2) \
1056 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1057 goto invalid_enum_error; \
1062 * Helper function to determine whether a texture target is enabled.
1065 is_texture_enabled(struct gl_context *ctx, GLbitfield bit)
1067 const struct gl_texture_unit *const texUnit =
1068 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1069 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;
1074 * Return simple enable/disable state.
1076 * \param cap state variable to query.
1078 * Returns the state of the specified capability from the current GL context.
1079 * For the capabilities associated with extensions verifies that those
1080 * extensions are effectively present before reporting.
1082 GLboolean GLAPIENTRY
1083 _mesa_IsEnabled( GLenum cap )
1085 GET_CURRENT_CONTEXT(ctx);
1086 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1090 return ctx->Color.AlphaEnabled;
1091 case GL_AUTO_NORMAL:
1092 return ctx->Eval.AutoNormal;
1094 return ctx->Color.BlendEnabled & 1; /* return state for buffer[0] */
1095 case GL_CLIP_PLANE0:
1096 case GL_CLIP_PLANE1:
1097 case GL_CLIP_PLANE2:
1098 case GL_CLIP_PLANE3:
1099 case GL_CLIP_PLANE4:
1100 case GL_CLIP_PLANE5:
1101 return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1;
1102 case GL_COLOR_MATERIAL:
1103 return ctx->Light.ColorMaterialEnabled;
1105 return ctx->Polygon.CullFlag;
1107 return ctx->Depth.Test;
1109 return ctx->Color.DitherFlag;
1111 return ctx->Fog.Enabled;
1113 return ctx->Light.Enabled;
1122 return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
1123 case GL_LINE_SMOOTH:
1124 return ctx->Line.SmoothFlag;
1125 case GL_LINE_STIPPLE:
1126 return ctx->Line.StippleFlag;
1127 case GL_INDEX_LOGIC_OP:
1128 return ctx->Color.IndexLogicOpEnabled;
1129 case GL_COLOR_LOGIC_OP:
1130 return ctx->Color.ColorLogicOpEnabled;
1131 case GL_MAP1_COLOR_4:
1132 return ctx->Eval.Map1Color4;
1134 return ctx->Eval.Map1Index;
1135 case GL_MAP1_NORMAL:
1136 return ctx->Eval.Map1Normal;
1137 case GL_MAP1_TEXTURE_COORD_1:
1138 return ctx->Eval.Map1TextureCoord1;
1139 case GL_MAP1_TEXTURE_COORD_2:
1140 return ctx->Eval.Map1TextureCoord2;
1141 case GL_MAP1_TEXTURE_COORD_3:
1142 return ctx->Eval.Map1TextureCoord3;
1143 case GL_MAP1_TEXTURE_COORD_4:
1144 return ctx->Eval.Map1TextureCoord4;
1145 case GL_MAP1_VERTEX_3:
1146 return ctx->Eval.Map1Vertex3;
1147 case GL_MAP1_VERTEX_4:
1148 return ctx->Eval.Map1Vertex4;
1149 case GL_MAP2_COLOR_4:
1150 return ctx->Eval.Map2Color4;
1152 return ctx->Eval.Map2Index;
1153 case GL_MAP2_NORMAL:
1154 return ctx->Eval.Map2Normal;
1155 case GL_MAP2_TEXTURE_COORD_1:
1156 return ctx->Eval.Map2TextureCoord1;
1157 case GL_MAP2_TEXTURE_COORD_2:
1158 return ctx->Eval.Map2TextureCoord2;
1159 case GL_MAP2_TEXTURE_COORD_3:
1160 return ctx->Eval.Map2TextureCoord3;
1161 case GL_MAP2_TEXTURE_COORD_4:
1162 return ctx->Eval.Map2TextureCoord4;
1163 case GL_MAP2_VERTEX_3:
1164 return ctx->Eval.Map2Vertex3;
1165 case GL_MAP2_VERTEX_4:
1166 return ctx->Eval.Map2Vertex4;
1168 return ctx->Transform.Normalize;
1169 case GL_POINT_SMOOTH:
1170 return ctx->Point.SmoothFlag;
1171 case GL_POLYGON_SMOOTH:
1172 return ctx->Polygon.SmoothFlag;
1173 case GL_POLYGON_STIPPLE:
1174 return ctx->Polygon.StippleFlag;
1175 case GL_POLYGON_OFFSET_POINT:
1176 return ctx->Polygon.OffsetPoint;
1177 case GL_POLYGON_OFFSET_LINE:
1178 return ctx->Polygon.OffsetLine;
1179 case GL_POLYGON_OFFSET_FILL:
1180 /*case GL_POLYGON_OFFSET_EXT:*/
1181 return ctx->Polygon.OffsetFill;
1182 case GL_RESCALE_NORMAL_EXT:
1183 return ctx->Transform.RescaleNormals;
1184 case GL_SCISSOR_TEST:
1185 return ctx->Scissor.Enabled;
1186 case GL_SHARED_TEXTURE_PALETTE_EXT:
1187 return ctx->Texture.SharedPalette;
1188 case GL_STENCIL_TEST:
1189 return ctx->Stencil.Enabled;
1191 return is_texture_enabled(ctx, TEXTURE_1D_BIT);
1193 return is_texture_enabled(ctx, TEXTURE_2D_BIT);
1195 return is_texture_enabled(ctx, TEXTURE_3D_BIT);
1196 case GL_TEXTURE_GEN_S:
1197 case GL_TEXTURE_GEN_T:
1198 case GL_TEXTURE_GEN_R:
1199 case GL_TEXTURE_GEN_Q:
1201 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1203 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S);
1204 return (texUnit->TexGenEnabled & coordBit) ? GL_TRUE : GL_FALSE;
1209 case GL_TEXTURE_GEN_STR_OES:
1211 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1213 return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS
1214 ? GL_TRUE : GL_FALSE;
1222 case GL_VERTEX_ARRAY:
1223 return (ctx->Array.ArrayObj->Vertex.Enabled != 0);
1224 case GL_NORMAL_ARRAY:
1225 return (ctx->Array.ArrayObj->Normal.Enabled != 0);
1226 case GL_COLOR_ARRAY:
1227 return (ctx->Array.ArrayObj->Color.Enabled != 0);
1228 case GL_INDEX_ARRAY:
1229 return (ctx->Array.ArrayObj->Index.Enabled != 0);
1230 case GL_TEXTURE_COORD_ARRAY:
1231 return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture]
1233 case GL_EDGE_FLAG_ARRAY:
1234 return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);
1235 case GL_FOG_COORDINATE_ARRAY_EXT:
1236 CHECK_EXTENSION(EXT_fog_coord);
1237 return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);
1238 case GL_SECONDARY_COLOR_ARRAY_EXT:
1239 CHECK_EXTENSION(EXT_secondary_color);
1240 return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);
1241 #if FEATURE_point_size_array
1242 case GL_POINT_SIZE_ARRAY_OES:
1243 return (ctx->Array.ArrayObj->PointSize.Enabled != 0);
1246 /* GL_ARB_texture_cube_map */
1247 case GL_TEXTURE_CUBE_MAP_ARB:
1248 CHECK_EXTENSION(ARB_texture_cube_map);
1249 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);
1251 /* GL_EXT_secondary_color */
1252 case GL_COLOR_SUM_EXT:
1253 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program);
1254 return ctx->Fog.ColorSumEnabled;
1256 /* GL_ARB_multisample */
1257 case GL_MULTISAMPLE_ARB:
1258 return ctx->Multisample.Enabled;
1259 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
1260 return ctx->Multisample.SampleAlphaToCoverage;
1261 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
1262 return ctx->Multisample.SampleAlphaToOne;
1263 case GL_SAMPLE_COVERAGE_ARB:
1264 return ctx->Multisample.SampleCoverage;
1265 case GL_SAMPLE_COVERAGE_INVERT_ARB:
1266 return ctx->Multisample.SampleCoverageInvert;
1268 /* GL_IBM_rasterpos_clip */
1269 case GL_RASTER_POSITION_UNCLIPPED_IBM:
1270 CHECK_EXTENSION(IBM_rasterpos_clip);
1271 return ctx->Transform.RasterPositionUnclipped;
1273 /* GL_NV_point_sprite */
1274 case GL_POINT_SPRITE_NV:
1275 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)
1276 return ctx->Point.PointSprite;
1278 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1279 case GL_VERTEX_PROGRAM_ARB:
1280 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1281 return ctx->VertexProgram.Enabled;
1282 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
1283 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1284 return ctx->VertexProgram.PointSizeEnabled;
1285 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
1286 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1287 return ctx->VertexProgram.TwoSideEnabled;
1289 #if FEATURE_NV_vertex_program
1290 case GL_VERTEX_ATTRIB_ARRAY0_NV:
1291 case GL_VERTEX_ATTRIB_ARRAY1_NV:
1292 case GL_VERTEX_ATTRIB_ARRAY2_NV:
1293 case GL_VERTEX_ATTRIB_ARRAY3_NV:
1294 case GL_VERTEX_ATTRIB_ARRAY4_NV:
1295 case GL_VERTEX_ATTRIB_ARRAY5_NV:
1296 case GL_VERTEX_ATTRIB_ARRAY6_NV:
1297 case GL_VERTEX_ATTRIB_ARRAY7_NV:
1298 case GL_VERTEX_ATTRIB_ARRAY8_NV:
1299 case GL_VERTEX_ATTRIB_ARRAY9_NV:
1300 case GL_VERTEX_ATTRIB_ARRAY10_NV:
1301 case GL_VERTEX_ATTRIB_ARRAY11_NV:
1302 case GL_VERTEX_ATTRIB_ARRAY12_NV:
1303 case GL_VERTEX_ATTRIB_ARRAY13_NV:
1304 case GL_VERTEX_ATTRIB_ARRAY14_NV:
1305 case GL_VERTEX_ATTRIB_ARRAY15_NV:
1306 CHECK_EXTENSION(NV_vertex_program);
1308 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
1309 ASSERT(n < Elements(ctx->Array.ArrayObj->VertexAttrib));
1310 return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0);
1312 case GL_MAP1_VERTEX_ATTRIB0_4_NV:
1313 case GL_MAP1_VERTEX_ATTRIB1_4_NV:
1314 case GL_MAP1_VERTEX_ATTRIB2_4_NV:
1315 case GL_MAP1_VERTEX_ATTRIB3_4_NV:
1316 case GL_MAP1_VERTEX_ATTRIB4_4_NV:
1317 case GL_MAP1_VERTEX_ATTRIB5_4_NV:
1318 case GL_MAP1_VERTEX_ATTRIB6_4_NV:
1319 case GL_MAP1_VERTEX_ATTRIB7_4_NV:
1320 case GL_MAP1_VERTEX_ATTRIB8_4_NV:
1321 case GL_MAP1_VERTEX_ATTRIB9_4_NV:
1322 case GL_MAP1_VERTEX_ATTRIB10_4_NV:
1323 case GL_MAP1_VERTEX_ATTRIB11_4_NV:
1324 case GL_MAP1_VERTEX_ATTRIB12_4_NV:
1325 case GL_MAP1_VERTEX_ATTRIB13_4_NV:
1326 case GL_MAP1_VERTEX_ATTRIB14_4_NV:
1327 case GL_MAP1_VERTEX_ATTRIB15_4_NV:
1328 CHECK_EXTENSION(NV_vertex_program);
1330 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
1331 return ctx->Eval.Map1Attrib[map];
1333 case GL_MAP2_VERTEX_ATTRIB0_4_NV:
1334 case GL_MAP2_VERTEX_ATTRIB1_4_NV:
1335 case GL_MAP2_VERTEX_ATTRIB2_4_NV:
1336 case GL_MAP2_VERTEX_ATTRIB3_4_NV:
1337 case GL_MAP2_VERTEX_ATTRIB4_4_NV:
1338 case GL_MAP2_VERTEX_ATTRIB5_4_NV:
1339 case GL_MAP2_VERTEX_ATTRIB6_4_NV:
1340 case GL_MAP2_VERTEX_ATTRIB7_4_NV:
1341 case GL_MAP2_VERTEX_ATTRIB8_4_NV:
1342 case GL_MAP2_VERTEX_ATTRIB9_4_NV:
1343 case GL_MAP2_VERTEX_ATTRIB10_4_NV:
1344 case GL_MAP2_VERTEX_ATTRIB11_4_NV:
1345 case GL_MAP2_VERTEX_ATTRIB12_4_NV:
1346 case GL_MAP2_VERTEX_ATTRIB13_4_NV:
1347 case GL_MAP2_VERTEX_ATTRIB14_4_NV:
1348 case GL_MAP2_VERTEX_ATTRIB15_4_NV:
1349 CHECK_EXTENSION(NV_vertex_program);
1351 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
1352 return ctx->Eval.Map2Attrib[map];
1354 #endif /* FEATURE_NV_vertex_program */
1356 #if FEATURE_NV_fragment_program
1357 case GL_FRAGMENT_PROGRAM_NV:
1358 CHECK_EXTENSION(NV_fragment_program);
1359 return ctx->FragmentProgram.Enabled;
1360 #endif /* FEATURE_NV_fragment_program */
1362 /* GL_NV_texture_rectangle */
1363 case GL_TEXTURE_RECTANGLE_NV:
1364 CHECK_EXTENSION(NV_texture_rectangle);
1365 return is_texture_enabled(ctx, TEXTURE_RECT_BIT);
1367 /* GL_EXT_stencil_two_side */
1368 case GL_STENCIL_TEST_TWO_SIDE_EXT:
1369 CHECK_EXTENSION(EXT_stencil_two_side);
1370 return ctx->Stencil.TestTwoSide;
1372 #if FEATURE_ARB_fragment_program
1373 case GL_FRAGMENT_PROGRAM_ARB:
1374 return ctx->FragmentProgram.Enabled;
1375 #endif /* FEATURE_ARB_fragment_program */
1377 /* GL_EXT_depth_bounds_test */
1378 case GL_DEPTH_BOUNDS_TEST_EXT:
1379 CHECK_EXTENSION(EXT_depth_bounds_test);
1380 return ctx->Depth.BoundsTest;
1382 /* GL_ARB_depth_clamp */
1383 case GL_DEPTH_CLAMP:
1384 CHECK_EXTENSION(ARB_depth_clamp);
1385 return ctx->Transform.DepthClamp;
1387 #if FEATURE_ATI_fragment_shader
1388 case GL_FRAGMENT_SHADER_ATI:
1389 CHECK_EXTENSION(ATI_fragment_shader);
1390 return ctx->ATIFragmentShader.Enabled;
1391 #endif /* FEATURE_ATI_fragment_shader */
1393 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1394 CHECK_EXTENSION(ARB_seamless_cube_map);
1395 return ctx->Texture.CubeMapSeamless;
1397 #if FEATURE_EXT_transform_feedback
1398 case GL_RASTERIZER_DISCARD:
1399 CHECK_EXTENSION(EXT_transform_feedback);
1400 return ctx->TransformFeedback.RasterDiscard;
1403 /* GL_NV_primitive_restart */
1404 case GL_PRIMITIVE_RESTART_NV:
1405 if (!ctx->Extensions.NV_primitive_restart) {
1406 goto invalid_enum_error;
1408 return ctx->Array.PrimitiveRestart;
1410 /* GL 3.1 primitive restart */
1411 case GL_PRIMITIVE_RESTART:
1412 if (ctx->VersionMajor * 10 + ctx->VersionMinor < 31) {
1413 goto invalid_enum_error;
1415 return ctx->Array.PrimitiveRestart;
1417 /* GL3.0 - GL_framebuffer_sRGB */
1418 case GL_FRAMEBUFFER_SRGB_EXT:
1419 CHECK_EXTENSION(EXT_framebuffer_sRGB);
1420 return ctx->Color.sRGBEnabled;
1423 goto invalid_enum_error;
1429 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);