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"
39 #include "math/m_matrix.h"
40 #include "api_arrayelt.h"
44 #define CHECK_EXTENSION(EXTNAME, CAP) \
45 if (!ctx->Extensions.EXTNAME) { \
46 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)", \
47 state ? "Enable" : "Disable", CAP); \
53 * Helper to enable/disable client-side state.
56 client_state(GLcontext *ctx, GLenum cap, GLboolean state)
63 var = &ctx->Array.ArrayObj->Vertex.Enabled;
64 flag = _NEW_ARRAY_VERTEX;
67 var = &ctx->Array.ArrayObj->Normal.Enabled;
68 flag = _NEW_ARRAY_NORMAL;
71 var = &ctx->Array.ArrayObj->Color.Enabled;
72 flag = _NEW_ARRAY_COLOR0;
75 var = &ctx->Array.ArrayObj->Index.Enabled;
76 flag = _NEW_ARRAY_INDEX;
78 case GL_TEXTURE_COORD_ARRAY:
79 var = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled;
80 flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture);
82 case GL_EDGE_FLAG_ARRAY:
83 var = &ctx->Array.ArrayObj->EdgeFlag.Enabled;
84 flag = _NEW_ARRAY_EDGEFLAG;
86 case GL_FOG_COORDINATE_ARRAY_EXT:
87 var = &ctx->Array.ArrayObj->FogCoord.Enabled;
88 flag = _NEW_ARRAY_FOGCOORD;
90 case GL_SECONDARY_COLOR_ARRAY_EXT:
91 var = &ctx->Array.ArrayObj->SecondaryColor.Enabled;
92 flag = _NEW_ARRAY_COLOR1;
95 #if FEATURE_point_size_array
96 case GL_POINT_SIZE_ARRAY_OES:
97 var = &ctx->Array.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 var = &ctx->Array.ArrayObj->VertexAttrib[n].Enabled;
123 flag = _NEW_ARRAY_ATTRIB(n);
126 #endif /* FEATURE_NV_vertex_program */
129 _mesa_error( ctx, GL_INVALID_ENUM,
130 "glEnable/DisableClientState(0x%x)", cap);
137 FLUSH_VERTICES(ctx, _NEW_ARRAY);
138 ctx->Array.NewState |= flag;
140 _ae_invalidate_state(ctx, _NEW_ARRAY);
145 ctx->Array.ArrayObj->_Enabled |= flag;
147 ctx->Array.ArrayObj->_Enabled &= ~flag;
149 if (ctx->Driver.Enable) {
150 ctx->Driver.Enable( ctx, cap, state );
156 * Enable GL capability.
157 * \param cap state to enable/disable.
159 * Get's the current context, assures that we're outside glBegin()/glEnd() and
160 * calls client_state().
163 _mesa_EnableClientState( GLenum cap )
165 GET_CURRENT_CONTEXT(ctx);
166 ASSERT_OUTSIDE_BEGIN_END(ctx);
167 client_state( ctx, cap, GL_TRUE );
172 * Disable GL capability.
173 * \param cap state to enable/disable.
175 * Get's the current context, assures that we're outside glBegin()/glEnd() and
176 * calls client_state().
179 _mesa_DisableClientState( GLenum cap )
181 GET_CURRENT_CONTEXT(ctx);
182 ASSERT_OUTSIDE_BEGIN_END(ctx);
183 client_state( ctx, cap, GL_FALSE );
187 #undef CHECK_EXTENSION
188 #define CHECK_EXTENSION(EXTNAME, CAP) \
189 if (!ctx->Extensions.EXTNAME) { \
190 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
191 state ? "Enable" : "Disable", CAP); \
195 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
196 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
197 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
198 state ? "Enable" : "Disable", CAP); \
205 * Return pointer to current texture unit for setting/getting coordinate
207 * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
208 * higher than the number of supported coordinate units. And we'll return NULL.
210 static struct gl_texture_unit *
211 get_texcoord_unit(GLcontext *ctx)
213 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
214 _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");
218 return &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
224 * Helper function to enable or disable a texture target.
227 enable_texture(GLcontext *ctx, GLboolean state, GLbitfield bit)
229 const GLuint curr = ctx->Texture.CurrentUnit;
230 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
231 const GLuint newenabled = (!state)
232 ? (texUnit->Enabled & ~bit) : (texUnit->Enabled | bit);
234 if (!ctx->DrawBuffer->Visual.rgbMode || texUnit->Enabled == newenabled)
237 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
238 texUnit->Enabled = newenabled;
244 * Helper function to enable or disable state.
246 * \param ctx GL context.
247 * \param cap the state to enable/disable
248 * \param state whether to enable or disable the specified capability.
250 * Updates the current context and flushes the vertices as needed. For
251 * capabilities associated with extensions it verifies that those extensions
252 * are effectivly present before updating. Notifies the driver via
253 * dd_function_table::Enable.
256 _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
258 if (MESA_VERBOSE & VERBOSE_API)
259 _mesa_debug(ctx, "%s %s (newstate is %x)\n",
260 state ? "glEnable" : "glDisable",
261 _mesa_lookup_enum_by_nr(cap),
266 if (ctx->Color.AlphaEnabled == state)
268 FLUSH_VERTICES(ctx, _NEW_COLOR);
269 ctx->Color.AlphaEnabled = state;
272 if (ctx->Eval.AutoNormal == state)
274 FLUSH_VERTICES(ctx, _NEW_EVAL);
275 ctx->Eval.AutoNormal = state;
278 if (ctx->Color.BlendEnabled == state)
280 FLUSH_VERTICES(ctx, _NEW_COLOR);
281 ctx->Color.BlendEnabled = state;
291 const GLuint p = cap - GL_CLIP_PLANE0;
293 if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p))
296 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
299 ctx->Transform.ClipPlanesEnabled |= (1 << p);
301 if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
302 _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
304 /* This derived state also calculated in clip.c and
305 * from _mesa_update_state() on changes to EyeUserPlane
306 * and ctx->ProjectionMatrix respectively.
308 _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],
309 ctx->Transform.EyeUserPlane[p],
310 ctx->ProjectionMatrixStack.Top->inv );
313 ctx->Transform.ClipPlanesEnabled &= ~(1 << p);
318 case GL_COLOR_MATERIAL:
319 if (ctx->Light.ColorMaterialEnabled == state)
321 FLUSH_VERTICES(ctx, _NEW_LIGHT);
322 FLUSH_CURRENT(ctx, 0);
323 ctx->Light.ColorMaterialEnabled = state;
325 _mesa_update_color_material( ctx,
326 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
330 if (ctx->Polygon.CullFlag == state)
332 FLUSH_VERTICES(ctx, _NEW_POLYGON);
333 ctx->Polygon.CullFlag = state;
335 case GL_CULL_VERTEX_EXT:
336 CHECK_EXTENSION(EXT_cull_vertex, cap);
337 if (ctx->Transform.CullVertexFlag == state)
339 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
340 ctx->Transform.CullVertexFlag = state;
343 if (ctx->Depth.Test == state)
345 FLUSH_VERTICES(ctx, _NEW_DEPTH);
346 ctx->Depth.Test = state;
350 state = GL_FALSE; /* MESA_NO_DITHER env var */
352 if (ctx->Color.DitherFlag == state)
354 FLUSH_VERTICES(ctx, _NEW_COLOR);
355 ctx->Color.DitherFlag = state;
358 if (ctx->Fog.Enabled == state)
360 FLUSH_VERTICES(ctx, _NEW_FOG);
361 ctx->Fog.Enabled = state;
364 CHECK_EXTENSION(EXT_histogram, cap);
365 if (ctx->Pixel.HistogramEnabled == state)
367 FLUSH_VERTICES(ctx, _NEW_PIXEL);
368 ctx->Pixel.HistogramEnabled = state;
378 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)
380 FLUSH_VERTICES(ctx, _NEW_LIGHT);
381 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
383 insert_at_tail(&ctx->Light.EnabledList,
384 &ctx->Light.Light[cap-GL_LIGHT0]);
387 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
391 if (ctx->Light.Enabled == state)
393 FLUSH_VERTICES(ctx, _NEW_LIGHT);
394 ctx->Light.Enabled = state;
395 if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
396 ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
398 ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
401 if (ctx->Line.SmoothFlag == state)
403 FLUSH_VERTICES(ctx, _NEW_LINE);
404 ctx->Line.SmoothFlag = state;
405 ctx->_TriangleCaps ^= DD_LINE_SMOOTH;
407 case GL_LINE_STIPPLE:
408 if (ctx->Line.StippleFlag == state)
410 FLUSH_VERTICES(ctx, _NEW_LINE);
411 ctx->Line.StippleFlag = state;
412 ctx->_TriangleCaps ^= DD_LINE_STIPPLE;
414 case GL_INDEX_LOGIC_OP:
415 if (ctx->Color.IndexLogicOpEnabled == state)
417 FLUSH_VERTICES(ctx, _NEW_COLOR);
418 ctx->Color.IndexLogicOpEnabled = state;
420 case GL_COLOR_LOGIC_OP:
421 if (ctx->Color.ColorLogicOpEnabled == state)
423 FLUSH_VERTICES(ctx, _NEW_COLOR);
424 ctx->Color.ColorLogicOpEnabled = state;
426 case GL_MAP1_COLOR_4:
427 if (ctx->Eval.Map1Color4 == state)
429 FLUSH_VERTICES(ctx, _NEW_EVAL);
430 ctx->Eval.Map1Color4 = state;
433 if (ctx->Eval.Map1Index == state)
435 FLUSH_VERTICES(ctx, _NEW_EVAL);
436 ctx->Eval.Map1Index = state;
439 if (ctx->Eval.Map1Normal == state)
441 FLUSH_VERTICES(ctx, _NEW_EVAL);
442 ctx->Eval.Map1Normal = state;
444 case GL_MAP1_TEXTURE_COORD_1:
445 if (ctx->Eval.Map1TextureCoord1 == state)
447 FLUSH_VERTICES(ctx, _NEW_EVAL);
448 ctx->Eval.Map1TextureCoord1 = state;
450 case GL_MAP1_TEXTURE_COORD_2:
451 if (ctx->Eval.Map1TextureCoord2 == state)
453 FLUSH_VERTICES(ctx, _NEW_EVAL);
454 ctx->Eval.Map1TextureCoord2 = state;
456 case GL_MAP1_TEXTURE_COORD_3:
457 if (ctx->Eval.Map1TextureCoord3 == state)
459 FLUSH_VERTICES(ctx, _NEW_EVAL);
460 ctx->Eval.Map1TextureCoord3 = state;
462 case GL_MAP1_TEXTURE_COORD_4:
463 if (ctx->Eval.Map1TextureCoord4 == state)
465 FLUSH_VERTICES(ctx, _NEW_EVAL);
466 ctx->Eval.Map1TextureCoord4 = state;
468 case GL_MAP1_VERTEX_3:
469 if (ctx->Eval.Map1Vertex3 == state)
471 FLUSH_VERTICES(ctx, _NEW_EVAL);
472 ctx->Eval.Map1Vertex3 = state;
474 case GL_MAP1_VERTEX_4:
475 if (ctx->Eval.Map1Vertex4 == state)
477 FLUSH_VERTICES(ctx, _NEW_EVAL);
478 ctx->Eval.Map1Vertex4 = state;
480 case GL_MAP2_COLOR_4:
481 if (ctx->Eval.Map2Color4 == state)
483 FLUSH_VERTICES(ctx, _NEW_EVAL);
484 ctx->Eval.Map2Color4 = state;
487 if (ctx->Eval.Map2Index == state)
489 FLUSH_VERTICES(ctx, _NEW_EVAL);
490 ctx->Eval.Map2Index = state;
493 if (ctx->Eval.Map2Normal == state)
495 FLUSH_VERTICES(ctx, _NEW_EVAL);
496 ctx->Eval.Map2Normal = state;
498 case GL_MAP2_TEXTURE_COORD_1:
499 if (ctx->Eval.Map2TextureCoord1 == state)
501 FLUSH_VERTICES(ctx, _NEW_EVAL);
502 ctx->Eval.Map2TextureCoord1 = state;
504 case GL_MAP2_TEXTURE_COORD_2:
505 if (ctx->Eval.Map2TextureCoord2 == state)
507 FLUSH_VERTICES(ctx, _NEW_EVAL);
508 ctx->Eval.Map2TextureCoord2 = state;
510 case GL_MAP2_TEXTURE_COORD_3:
511 if (ctx->Eval.Map2TextureCoord3 == state)
513 FLUSH_VERTICES(ctx, _NEW_EVAL);
514 ctx->Eval.Map2TextureCoord3 = state;
516 case GL_MAP2_TEXTURE_COORD_4:
517 if (ctx->Eval.Map2TextureCoord4 == state)
519 FLUSH_VERTICES(ctx, _NEW_EVAL);
520 ctx->Eval.Map2TextureCoord4 = state;
522 case GL_MAP2_VERTEX_3:
523 if (ctx->Eval.Map2Vertex3 == state)
525 FLUSH_VERTICES(ctx, _NEW_EVAL);
526 ctx->Eval.Map2Vertex3 = state;
528 case GL_MAP2_VERTEX_4:
529 if (ctx->Eval.Map2Vertex4 == state)
531 FLUSH_VERTICES(ctx, _NEW_EVAL);
532 ctx->Eval.Map2Vertex4 = state;
535 if (ctx->Pixel.MinMaxEnabled == state)
537 FLUSH_VERTICES(ctx, _NEW_PIXEL);
538 ctx->Pixel.MinMaxEnabled = state;
541 if (ctx->Transform.Normalize == state)
543 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
544 ctx->Transform.Normalize = state;
546 case GL_POINT_SMOOTH:
547 if (ctx->Point.SmoothFlag == state)
549 FLUSH_VERTICES(ctx, _NEW_POINT);
550 ctx->Point.SmoothFlag = state;
551 ctx->_TriangleCaps ^= DD_POINT_SMOOTH;
553 case GL_POLYGON_SMOOTH:
554 if (ctx->Polygon.SmoothFlag == state)
556 FLUSH_VERTICES(ctx, _NEW_POLYGON);
557 ctx->Polygon.SmoothFlag = state;
558 ctx->_TriangleCaps ^= DD_TRI_SMOOTH;
560 case GL_POLYGON_STIPPLE:
561 if (ctx->Polygon.StippleFlag == state)
563 FLUSH_VERTICES(ctx, _NEW_POLYGON);
564 ctx->Polygon.StippleFlag = state;
565 ctx->_TriangleCaps ^= DD_TRI_STIPPLE;
567 case GL_POLYGON_OFFSET_POINT:
568 if (ctx->Polygon.OffsetPoint == state)
570 FLUSH_VERTICES(ctx, _NEW_POLYGON);
571 ctx->Polygon.OffsetPoint = state;
573 case GL_POLYGON_OFFSET_LINE:
574 if (ctx->Polygon.OffsetLine == state)
576 FLUSH_VERTICES(ctx, _NEW_POLYGON);
577 ctx->Polygon.OffsetLine = state;
579 case GL_POLYGON_OFFSET_FILL:
580 /*case GL_POLYGON_OFFSET_EXT:*/
581 if (ctx->Polygon.OffsetFill == state)
583 FLUSH_VERTICES(ctx, _NEW_POLYGON);
584 ctx->Polygon.OffsetFill = state;
586 case GL_RESCALE_NORMAL_EXT:
587 if (ctx->Transform.RescaleNormals == state)
589 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
590 ctx->Transform.RescaleNormals = state;
592 case GL_SCISSOR_TEST:
593 if (ctx->Scissor.Enabled == state)
595 FLUSH_VERTICES(ctx, _NEW_SCISSOR);
596 ctx->Scissor.Enabled = state;
598 case GL_SHARED_TEXTURE_PALETTE_EXT:
599 if (ctx->Texture.SharedPalette == state)
601 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
602 ctx->Texture.SharedPalette = state;
604 case GL_STENCIL_TEST:
605 if (ctx->Stencil.Enabled == state)
607 FLUSH_VERTICES(ctx, _NEW_STENCIL);
608 ctx->Stencil.Enabled = state;
611 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
616 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
621 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
625 case GL_TEXTURE_GEN_Q:
627 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
629 GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;
632 if (texUnit->TexGenEnabled == newenabled)
634 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
635 texUnit->TexGenEnabled = newenabled;
639 case GL_TEXTURE_GEN_R:
641 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
643 GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;
646 if (texUnit->TexGenEnabled == newenabled)
648 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
649 texUnit->TexGenEnabled = newenabled;
653 case GL_TEXTURE_GEN_S:
655 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
657 GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;
660 if (texUnit->TexGenEnabled == newenabled)
662 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
663 texUnit->TexGenEnabled = newenabled;
667 case GL_TEXTURE_GEN_T:
669 struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
671 GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;
674 if (texUnit->TexGenEnabled == newenabled)
676 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
677 texUnit->TexGenEnabled = newenabled;
685 case GL_VERTEX_ARRAY:
686 case GL_NORMAL_ARRAY:
689 case GL_TEXTURE_COORD_ARRAY:
690 case GL_EDGE_FLAG_ARRAY:
691 case GL_FOG_COORDINATE_ARRAY_EXT:
692 case GL_SECONDARY_COLOR_ARRAY_EXT:
693 case GL_POINT_SIZE_ARRAY_OES:
694 client_state( ctx, cap, state );
697 /* GL_SGI_color_table */
698 case GL_COLOR_TABLE_SGI:
699 CHECK_EXTENSION(SGI_color_table, cap);
700 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] == state)
702 FLUSH_VERTICES(ctx, _NEW_PIXEL);
703 ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] = state;
705 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
706 CHECK_EXTENSION(SGI_color_table, cap);
707 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] == state)
709 FLUSH_VERTICES(ctx, _NEW_PIXEL);
710 ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] = state;
712 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
713 CHECK_EXTENSION(SGI_color_table, cap);
714 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] == state)
716 FLUSH_VERTICES(ctx, _NEW_PIXEL);
717 ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] = state;
719 case GL_TEXTURE_COLOR_TABLE_SGI:
720 CHECK_EXTENSION(SGI_texture_color_table, cap);
721 if (ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled == state)
723 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
724 ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled = state;
727 /* GL_EXT_convolution */
728 case GL_CONVOLUTION_1D:
729 CHECK_EXTENSION(EXT_convolution, cap);
730 if (ctx->Pixel.Convolution1DEnabled == state)
732 FLUSH_VERTICES(ctx, _NEW_PIXEL);
733 ctx->Pixel.Convolution1DEnabled = state;
735 case GL_CONVOLUTION_2D:
736 CHECK_EXTENSION(EXT_convolution, cap);
737 if (ctx->Pixel.Convolution2DEnabled == state)
739 FLUSH_VERTICES(ctx, _NEW_PIXEL);
740 ctx->Pixel.Convolution2DEnabled = state;
742 case GL_SEPARABLE_2D:
743 CHECK_EXTENSION(EXT_convolution, cap);
744 if (ctx->Pixel.Separable2DEnabled == state)
746 FLUSH_VERTICES(ctx, _NEW_PIXEL);
747 ctx->Pixel.Separable2DEnabled = state;
750 /* GL_ARB_texture_cube_map */
751 case GL_TEXTURE_CUBE_MAP_ARB:
752 CHECK_EXTENSION(ARB_texture_cube_map, cap);
753 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {
758 /* GL_EXT_secondary_color */
759 case GL_COLOR_SUM_EXT:
760 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);
761 if (ctx->Fog.ColorSumEnabled == state)
763 FLUSH_VERTICES(ctx, _NEW_FOG);
764 ctx->Fog.ColorSumEnabled = state;
767 /* GL_ARB_multisample */
768 case GL_MULTISAMPLE_ARB:
769 if (ctx->Multisample.Enabled == state)
771 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
772 ctx->Multisample.Enabled = state;
774 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
775 if (ctx->Multisample.SampleAlphaToCoverage == state)
777 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
778 ctx->Multisample.SampleAlphaToCoverage = state;
780 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
781 if (ctx->Multisample.SampleAlphaToOne == state)
783 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
784 ctx->Multisample.SampleAlphaToOne = state;
786 case GL_SAMPLE_COVERAGE_ARB:
787 if (ctx->Multisample.SampleCoverage == state)
789 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
790 ctx->Multisample.SampleCoverage = state;
792 case GL_SAMPLE_COVERAGE_INVERT_ARB:
793 if (ctx->Multisample.SampleCoverageInvert == state)
795 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
796 ctx->Multisample.SampleCoverageInvert = state;
799 /* GL_IBM_rasterpos_clip */
800 case GL_RASTER_POSITION_UNCLIPPED_IBM:
801 CHECK_EXTENSION(IBM_rasterpos_clip, cap);
802 if (ctx->Transform.RasterPositionUnclipped == state)
804 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
805 ctx->Transform.RasterPositionUnclipped = state;
808 /* GL_NV_point_sprite */
809 case GL_POINT_SPRITE_NV:
810 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap);
811 if (ctx->Point.PointSprite == state)
813 FLUSH_VERTICES(ctx, _NEW_POINT);
814 ctx->Point.PointSprite = state;
817 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
818 case GL_VERTEX_PROGRAM_ARB:
819 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
820 if (ctx->VertexProgram.Enabled == state)
822 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
823 ctx->VertexProgram.Enabled = state;
825 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
826 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
827 if (ctx->VertexProgram.PointSizeEnabled == state)
829 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
830 ctx->VertexProgram.PointSizeEnabled = state;
832 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
833 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
834 if (ctx->VertexProgram.TwoSideEnabled == state)
836 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
837 ctx->VertexProgram.TwoSideEnabled = state;
840 #if FEATURE_NV_vertex_program
841 case GL_MAP1_VERTEX_ATTRIB0_4_NV:
842 case GL_MAP1_VERTEX_ATTRIB1_4_NV:
843 case GL_MAP1_VERTEX_ATTRIB2_4_NV:
844 case GL_MAP1_VERTEX_ATTRIB3_4_NV:
845 case GL_MAP1_VERTEX_ATTRIB4_4_NV:
846 case GL_MAP1_VERTEX_ATTRIB5_4_NV:
847 case GL_MAP1_VERTEX_ATTRIB6_4_NV:
848 case GL_MAP1_VERTEX_ATTRIB7_4_NV:
849 case GL_MAP1_VERTEX_ATTRIB8_4_NV:
850 case GL_MAP1_VERTEX_ATTRIB9_4_NV:
851 case GL_MAP1_VERTEX_ATTRIB10_4_NV:
852 case GL_MAP1_VERTEX_ATTRIB11_4_NV:
853 case GL_MAP1_VERTEX_ATTRIB12_4_NV:
854 case GL_MAP1_VERTEX_ATTRIB13_4_NV:
855 case GL_MAP1_VERTEX_ATTRIB14_4_NV:
856 case GL_MAP1_VERTEX_ATTRIB15_4_NV:
857 CHECK_EXTENSION(NV_vertex_program, cap);
859 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
860 FLUSH_VERTICES(ctx, _NEW_EVAL);
861 ctx->Eval.Map1Attrib[map] = state;
864 case GL_MAP2_VERTEX_ATTRIB0_4_NV:
865 case GL_MAP2_VERTEX_ATTRIB1_4_NV:
866 case GL_MAP2_VERTEX_ATTRIB2_4_NV:
867 case GL_MAP2_VERTEX_ATTRIB3_4_NV:
868 case GL_MAP2_VERTEX_ATTRIB4_4_NV:
869 case GL_MAP2_VERTEX_ATTRIB5_4_NV:
870 case GL_MAP2_VERTEX_ATTRIB6_4_NV:
871 case GL_MAP2_VERTEX_ATTRIB7_4_NV:
872 case GL_MAP2_VERTEX_ATTRIB8_4_NV:
873 case GL_MAP2_VERTEX_ATTRIB9_4_NV:
874 case GL_MAP2_VERTEX_ATTRIB10_4_NV:
875 case GL_MAP2_VERTEX_ATTRIB11_4_NV:
876 case GL_MAP2_VERTEX_ATTRIB12_4_NV:
877 case GL_MAP2_VERTEX_ATTRIB13_4_NV:
878 case GL_MAP2_VERTEX_ATTRIB14_4_NV:
879 case GL_MAP2_VERTEX_ATTRIB15_4_NV:
880 CHECK_EXTENSION(NV_vertex_program, cap);
882 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
883 FLUSH_VERTICES(ctx, _NEW_EVAL);
884 ctx->Eval.Map2Attrib[map] = state;
887 #endif /* FEATURE_NV_vertex_program */
889 #if FEATURE_NV_fragment_program
890 case GL_FRAGMENT_PROGRAM_NV:
891 CHECK_EXTENSION(NV_fragment_program, cap);
892 if (ctx->FragmentProgram.Enabled == state)
894 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
895 ctx->FragmentProgram.Enabled = state;
897 #endif /* FEATURE_NV_fragment_program */
899 /* GL_NV_texture_rectangle */
900 case GL_TEXTURE_RECTANGLE_NV:
901 CHECK_EXTENSION(NV_texture_rectangle, cap);
902 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
907 /* GL_EXT_stencil_two_side */
908 case GL_STENCIL_TEST_TWO_SIDE_EXT:
909 CHECK_EXTENSION(EXT_stencil_two_side, cap);
910 if (ctx->Stencil.TestTwoSide == state)
912 FLUSH_VERTICES(ctx, _NEW_STENCIL);
913 ctx->Stencil.TestTwoSide = state;
915 ctx->Stencil._BackFace = 2;
916 ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
918 ctx->Stencil._BackFace = 1;
919 ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;
923 #if FEATURE_ARB_fragment_program
924 case GL_FRAGMENT_PROGRAM_ARB:
925 CHECK_EXTENSION(ARB_fragment_program, cap);
926 if (ctx->FragmentProgram.Enabled == state)
928 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
929 ctx->FragmentProgram.Enabled = state;
931 #endif /* FEATURE_ARB_fragment_program */
933 /* GL_EXT_depth_bounds_test */
934 case GL_DEPTH_BOUNDS_TEST_EXT:
935 CHECK_EXTENSION(EXT_depth_bounds_test, cap);
936 if (state && ctx->DrawBuffer->Visual.depthBits == 0) {
938 "glEnable(GL_DEPTH_BOUNDS_TEST_EXT) but no depth buffer");
941 if (ctx->Depth.BoundsTest == state)
943 FLUSH_VERTICES(ctx, _NEW_DEPTH);
944 ctx->Depth.BoundsTest = state;
947 #if FEATURE_ATI_fragment_shader
948 case GL_FRAGMENT_SHADER_ATI:
949 CHECK_EXTENSION(ATI_fragment_shader, cap);
950 if (ctx->ATIFragmentShader.Enabled == state)
952 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
953 ctx->ATIFragmentShader.Enabled = state;
957 /* GL_MESA_texture_array */
958 case GL_TEXTURE_1D_ARRAY_EXT:
959 CHECK_EXTENSION(MESA_texture_array, cap);
960 if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) {
965 case GL_TEXTURE_2D_ARRAY_EXT:
966 CHECK_EXTENSION(MESA_texture_array, cap);
967 if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) {
973 _mesa_error(ctx, GL_INVALID_ENUM,
974 "%s(0x%x)", state ? "glEnable" : "glDisable", cap);
978 if (ctx->Driver.Enable) {
979 ctx->Driver.Enable( ctx, cap, state );
985 * Enable GL capability. Called by glEnable()
986 * \param cap state to enable.
989 _mesa_Enable( GLenum cap )
991 GET_CURRENT_CONTEXT(ctx);
992 ASSERT_OUTSIDE_BEGIN_END(ctx);
994 _mesa_set_enable( ctx, cap, GL_TRUE );
999 * Disable GL capability. Called by glDisable()
1000 * \param cap state to disable.
1003 _mesa_Disable( GLenum cap )
1005 GET_CURRENT_CONTEXT(ctx);
1006 ASSERT_OUTSIDE_BEGIN_END(ctx);
1008 _mesa_set_enable( ctx, cap, GL_FALSE );
1012 #undef CHECK_EXTENSION
1013 #define CHECK_EXTENSION(EXTNAME) \
1014 if (!ctx->Extensions.EXTNAME) { \
1015 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1019 #undef CHECK_EXTENSION2
1020 #define CHECK_EXTENSION2(EXT1, EXT2) \
1021 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1022 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1028 * Helper function to determine whether a texture target is enabled.
1031 is_texture_enabled(GLcontext *ctx, GLbitfield bit)
1033 const struct gl_texture_unit *const texUnit =
1034 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1035 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;
1040 * Return simple enable/disable state.
1042 * \param cap state variable to query.
1044 * Returns the state of the specified capability from the current GL context.
1045 * For the capabilities associated with extensions verifies that those
1046 * extensions are effectively present before reporting.
1048 GLboolean GLAPIENTRY
1049 _mesa_IsEnabled( GLenum cap )
1051 GET_CURRENT_CONTEXT(ctx);
1054 return ctx->Color.AlphaEnabled;
1055 case GL_AUTO_NORMAL:
1056 return ctx->Eval.AutoNormal;
1058 return ctx->Color.BlendEnabled;
1059 case GL_CLIP_PLANE0:
1060 case GL_CLIP_PLANE1:
1061 case GL_CLIP_PLANE2:
1062 case GL_CLIP_PLANE3:
1063 case GL_CLIP_PLANE4:
1064 case GL_CLIP_PLANE5:
1065 return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1;
1066 case GL_COLOR_MATERIAL:
1067 return ctx->Light.ColorMaterialEnabled;
1069 return ctx->Polygon.CullFlag;
1071 return ctx->Depth.Test;
1073 return ctx->Color.DitherFlag;
1075 return ctx->Fog.Enabled;
1077 return ctx->Light.Enabled;
1086 return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
1087 case GL_LINE_SMOOTH:
1088 return ctx->Line.SmoothFlag;
1089 case GL_LINE_STIPPLE:
1090 return ctx->Line.StippleFlag;
1091 case GL_INDEX_LOGIC_OP:
1092 return ctx->Color.IndexLogicOpEnabled;
1093 case GL_COLOR_LOGIC_OP:
1094 return ctx->Color.ColorLogicOpEnabled;
1095 case GL_MAP1_COLOR_4:
1096 return ctx->Eval.Map1Color4;
1098 return ctx->Eval.Map1Index;
1099 case GL_MAP1_NORMAL:
1100 return ctx->Eval.Map1Normal;
1101 case GL_MAP1_TEXTURE_COORD_1:
1102 return ctx->Eval.Map1TextureCoord1;
1103 case GL_MAP1_TEXTURE_COORD_2:
1104 return ctx->Eval.Map1TextureCoord2;
1105 case GL_MAP1_TEXTURE_COORD_3:
1106 return ctx->Eval.Map1TextureCoord3;
1107 case GL_MAP1_TEXTURE_COORD_4:
1108 return ctx->Eval.Map1TextureCoord4;
1109 case GL_MAP1_VERTEX_3:
1110 return ctx->Eval.Map1Vertex3;
1111 case GL_MAP1_VERTEX_4:
1112 return ctx->Eval.Map1Vertex4;
1113 case GL_MAP2_COLOR_4:
1114 return ctx->Eval.Map2Color4;
1116 return ctx->Eval.Map2Index;
1117 case GL_MAP2_NORMAL:
1118 return ctx->Eval.Map2Normal;
1119 case GL_MAP2_TEXTURE_COORD_1:
1120 return ctx->Eval.Map2TextureCoord1;
1121 case GL_MAP2_TEXTURE_COORD_2:
1122 return ctx->Eval.Map2TextureCoord2;
1123 case GL_MAP2_TEXTURE_COORD_3:
1124 return ctx->Eval.Map2TextureCoord3;
1125 case GL_MAP2_TEXTURE_COORD_4:
1126 return ctx->Eval.Map2TextureCoord4;
1127 case GL_MAP2_VERTEX_3:
1128 return ctx->Eval.Map2Vertex3;
1129 case GL_MAP2_VERTEX_4:
1130 return ctx->Eval.Map2Vertex4;
1132 return ctx->Transform.Normalize;
1133 case GL_POINT_SMOOTH:
1134 return ctx->Point.SmoothFlag;
1135 case GL_POLYGON_SMOOTH:
1136 return ctx->Polygon.SmoothFlag;
1137 case GL_POLYGON_STIPPLE:
1138 return ctx->Polygon.StippleFlag;
1139 case GL_POLYGON_OFFSET_POINT:
1140 return ctx->Polygon.OffsetPoint;
1141 case GL_POLYGON_OFFSET_LINE:
1142 return ctx->Polygon.OffsetLine;
1143 case GL_POLYGON_OFFSET_FILL:
1144 /*case GL_POLYGON_OFFSET_EXT:*/
1145 return ctx->Polygon.OffsetFill;
1146 case GL_RESCALE_NORMAL_EXT:
1147 return ctx->Transform.RescaleNormals;
1148 case GL_SCISSOR_TEST:
1149 return ctx->Scissor.Enabled;
1150 case GL_SHARED_TEXTURE_PALETTE_EXT:
1151 return ctx->Texture.SharedPalette;
1152 case GL_STENCIL_TEST:
1153 return ctx->Stencil.Enabled;
1155 return is_texture_enabled(ctx, TEXTURE_1D_BIT);
1157 return is_texture_enabled(ctx, TEXTURE_2D_BIT);
1159 return is_texture_enabled(ctx, TEXTURE_3D_BIT);
1160 case GL_TEXTURE_GEN_Q:
1162 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1164 return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
1168 case GL_TEXTURE_GEN_R:
1170 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1172 return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
1176 case GL_TEXTURE_GEN_S:
1178 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1180 return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
1184 case GL_TEXTURE_GEN_T:
1186 const struct gl_texture_unit *texUnit = get_texcoord_unit(ctx);
1188 return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
1196 case GL_VERTEX_ARRAY:
1197 return (ctx->Array.ArrayObj->Vertex.Enabled != 0);
1198 case GL_NORMAL_ARRAY:
1199 return (ctx->Array.ArrayObj->Normal.Enabled != 0);
1200 case GL_COLOR_ARRAY:
1201 return (ctx->Array.ArrayObj->Color.Enabled != 0);
1202 case GL_INDEX_ARRAY:
1203 return (ctx->Array.ArrayObj->Index.Enabled != 0);
1204 case GL_TEXTURE_COORD_ARRAY:
1205 return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0);
1206 case GL_EDGE_FLAG_ARRAY:
1207 return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);
1208 case GL_FOG_COORDINATE_ARRAY_EXT:
1209 CHECK_EXTENSION(EXT_fog_coord);
1210 return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);
1211 case GL_SECONDARY_COLOR_ARRAY_EXT:
1212 CHECK_EXTENSION(EXT_secondary_color);
1213 return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);
1214 #if FEATURE_point_size_array
1215 case GL_POINT_SIZE_ARRAY_OES:
1216 return (ctx->Array.ArrayObj->PointSize.Enabled != 0);
1219 /* GL_EXT_histogram */
1221 CHECK_EXTENSION(EXT_histogram);
1222 return ctx->Pixel.HistogramEnabled;
1224 CHECK_EXTENSION(EXT_histogram);
1225 return ctx->Pixel.MinMaxEnabled;
1227 /* GL_SGI_color_table */
1228 case GL_COLOR_TABLE_SGI:
1229 CHECK_EXTENSION(SGI_color_table);
1230 return ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION];
1231 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
1232 CHECK_EXTENSION(SGI_color_table);
1233 return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION];
1234 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
1235 CHECK_EXTENSION(SGI_color_table);
1236 return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX];
1238 /* GL_SGI_texture_color_table */
1239 case GL_TEXTURE_COLOR_TABLE_SGI:
1240 CHECK_EXTENSION(SGI_texture_color_table);
1241 return ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled;
1243 /* GL_EXT_convolution */
1244 case GL_CONVOLUTION_1D:
1245 CHECK_EXTENSION(EXT_convolution);
1246 return ctx->Pixel.Convolution1DEnabled;
1247 case GL_CONVOLUTION_2D:
1248 CHECK_EXTENSION(EXT_convolution);
1249 return ctx->Pixel.Convolution2DEnabled;
1250 case GL_SEPARABLE_2D:
1251 CHECK_EXTENSION(EXT_convolution);
1252 return ctx->Pixel.Separable2DEnabled;
1254 /* GL_ARB_texture_cube_map */
1255 case GL_TEXTURE_CUBE_MAP_ARB:
1256 CHECK_EXTENSION(ARB_texture_cube_map);
1257 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);
1259 /* GL_EXT_secondary_color */
1260 case GL_COLOR_SUM_EXT:
1261 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program);
1262 return ctx->Fog.ColorSumEnabled;
1264 /* GL_ARB_multisample */
1265 case GL_MULTISAMPLE_ARB:
1266 return ctx->Multisample.Enabled;
1267 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
1268 return ctx->Multisample.SampleAlphaToCoverage;
1269 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
1270 return ctx->Multisample.SampleAlphaToOne;
1271 case GL_SAMPLE_COVERAGE_ARB:
1272 return ctx->Multisample.SampleCoverage;
1273 case GL_SAMPLE_COVERAGE_INVERT_ARB:
1274 return ctx->Multisample.SampleCoverageInvert;
1276 /* GL_IBM_rasterpos_clip */
1277 case GL_RASTER_POSITION_UNCLIPPED_IBM:
1278 CHECK_EXTENSION(IBM_rasterpos_clip);
1279 return ctx->Transform.RasterPositionUnclipped;
1281 /* GL_NV_point_sprite */
1282 case GL_POINT_SPRITE_NV:
1283 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)
1284 return ctx->Point.PointSprite;
1286 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1287 case GL_VERTEX_PROGRAM_ARB:
1288 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1289 return ctx->VertexProgram.Enabled;
1290 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
1291 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1292 return ctx->VertexProgram.PointSizeEnabled;
1293 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
1294 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1295 return ctx->VertexProgram.TwoSideEnabled;
1297 #if FEATURE_NV_vertex_program
1298 case GL_VERTEX_ATTRIB_ARRAY0_NV:
1299 case GL_VERTEX_ATTRIB_ARRAY1_NV:
1300 case GL_VERTEX_ATTRIB_ARRAY2_NV:
1301 case GL_VERTEX_ATTRIB_ARRAY3_NV:
1302 case GL_VERTEX_ATTRIB_ARRAY4_NV:
1303 case GL_VERTEX_ATTRIB_ARRAY5_NV:
1304 case GL_VERTEX_ATTRIB_ARRAY6_NV:
1305 case GL_VERTEX_ATTRIB_ARRAY7_NV:
1306 case GL_VERTEX_ATTRIB_ARRAY8_NV:
1307 case GL_VERTEX_ATTRIB_ARRAY9_NV:
1308 case GL_VERTEX_ATTRIB_ARRAY10_NV:
1309 case GL_VERTEX_ATTRIB_ARRAY11_NV:
1310 case GL_VERTEX_ATTRIB_ARRAY12_NV:
1311 case GL_VERTEX_ATTRIB_ARRAY13_NV:
1312 case GL_VERTEX_ATTRIB_ARRAY14_NV:
1313 case GL_VERTEX_ATTRIB_ARRAY15_NV:
1314 CHECK_EXTENSION(NV_vertex_program);
1316 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
1317 return (ctx->Array.ArrayObj->VertexAttrib[n].Enabled != 0);
1319 case GL_MAP1_VERTEX_ATTRIB0_4_NV:
1320 case GL_MAP1_VERTEX_ATTRIB1_4_NV:
1321 case GL_MAP1_VERTEX_ATTRIB2_4_NV:
1322 case GL_MAP1_VERTEX_ATTRIB3_4_NV:
1323 case GL_MAP1_VERTEX_ATTRIB4_4_NV:
1324 case GL_MAP1_VERTEX_ATTRIB5_4_NV:
1325 case GL_MAP1_VERTEX_ATTRIB6_4_NV:
1326 case GL_MAP1_VERTEX_ATTRIB7_4_NV:
1327 case GL_MAP1_VERTEX_ATTRIB8_4_NV:
1328 case GL_MAP1_VERTEX_ATTRIB9_4_NV:
1329 case GL_MAP1_VERTEX_ATTRIB10_4_NV:
1330 case GL_MAP1_VERTEX_ATTRIB11_4_NV:
1331 case GL_MAP1_VERTEX_ATTRIB12_4_NV:
1332 case GL_MAP1_VERTEX_ATTRIB13_4_NV:
1333 case GL_MAP1_VERTEX_ATTRIB14_4_NV:
1334 case GL_MAP1_VERTEX_ATTRIB15_4_NV:
1335 CHECK_EXTENSION(NV_vertex_program);
1337 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
1338 return ctx->Eval.Map1Attrib[map];
1340 case GL_MAP2_VERTEX_ATTRIB0_4_NV:
1341 case GL_MAP2_VERTEX_ATTRIB1_4_NV:
1342 case GL_MAP2_VERTEX_ATTRIB2_4_NV:
1343 case GL_MAP2_VERTEX_ATTRIB3_4_NV:
1344 case GL_MAP2_VERTEX_ATTRIB4_4_NV:
1345 case GL_MAP2_VERTEX_ATTRIB5_4_NV:
1346 case GL_MAP2_VERTEX_ATTRIB6_4_NV:
1347 case GL_MAP2_VERTEX_ATTRIB7_4_NV:
1348 case GL_MAP2_VERTEX_ATTRIB8_4_NV:
1349 case GL_MAP2_VERTEX_ATTRIB9_4_NV:
1350 case GL_MAP2_VERTEX_ATTRIB10_4_NV:
1351 case GL_MAP2_VERTEX_ATTRIB11_4_NV:
1352 case GL_MAP2_VERTEX_ATTRIB12_4_NV:
1353 case GL_MAP2_VERTEX_ATTRIB13_4_NV:
1354 case GL_MAP2_VERTEX_ATTRIB14_4_NV:
1355 case GL_MAP2_VERTEX_ATTRIB15_4_NV:
1356 CHECK_EXTENSION(NV_vertex_program);
1358 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
1359 return ctx->Eval.Map2Attrib[map];
1361 #endif /* FEATURE_NV_vertex_program */
1363 #if FEATURE_NV_fragment_program
1364 case GL_FRAGMENT_PROGRAM_NV:
1365 CHECK_EXTENSION(NV_fragment_program);
1366 return ctx->FragmentProgram.Enabled;
1367 #endif /* FEATURE_NV_fragment_program */
1369 /* GL_NV_texture_rectangle */
1370 case GL_TEXTURE_RECTANGLE_NV:
1371 CHECK_EXTENSION(NV_texture_rectangle);
1372 return is_texture_enabled(ctx, TEXTURE_RECT_BIT);
1374 /* GL_EXT_stencil_two_side */
1375 case GL_STENCIL_TEST_TWO_SIDE_EXT:
1376 CHECK_EXTENSION(EXT_stencil_two_side);
1377 return ctx->Stencil.TestTwoSide;
1379 #if FEATURE_ARB_fragment_program
1380 case GL_FRAGMENT_PROGRAM_ARB:
1381 return ctx->FragmentProgram.Enabled;
1382 #endif /* FEATURE_ARB_fragment_program */
1384 /* GL_EXT_depth_bounds_test */
1385 case GL_DEPTH_BOUNDS_TEST_EXT:
1386 CHECK_EXTENSION(EXT_depth_bounds_test);
1387 return ctx->Depth.BoundsTest;
1389 #if FEATURE_ATI_fragment_shader
1390 case GL_FRAGMENT_SHADER_ATI:
1391 CHECK_EXTENSION(ATI_fragment_shader);
1392 return ctx->ATIFragmentShader.Enabled;
1393 #endif /* FEATURE_ATI_fragment_shader */
1395 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);