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 "math/m_xform.h"
41 #include "api_arrayelt.h"
45 #define CHECK_EXTENSION(EXTNAME, CAP) \
46 if (!ctx->Extensions.EXTNAME) { \
47 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)", \
48 state ? "Enable" : "Disable", CAP); \
54 * Helper to enable/disable client-side state.
57 client_state(GLcontext *ctx, GLenum cap, GLboolean state)
64 var = &ctx->Array.ArrayObj->Vertex.Enabled;
65 flag = _NEW_ARRAY_VERTEX;
68 var = &ctx->Array.ArrayObj->Normal.Enabled;
69 flag = _NEW_ARRAY_NORMAL;
72 var = &ctx->Array.ArrayObj->Color.Enabled;
73 flag = _NEW_ARRAY_COLOR0;
76 var = &ctx->Array.ArrayObj->Index.Enabled;
77 flag = _NEW_ARRAY_INDEX;
79 case GL_TEXTURE_COORD_ARRAY:
80 var = &ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled;
81 flag = _NEW_ARRAY_TEXCOORD(ctx->Array.ActiveTexture);
83 case GL_EDGE_FLAG_ARRAY:
84 var = &ctx->Array.ArrayObj->EdgeFlag.Enabled;
85 flag = _NEW_ARRAY_EDGEFLAG;
87 case GL_FOG_COORDINATE_ARRAY_EXT:
88 var = &ctx->Array.ArrayObj->FogCoord.Enabled;
89 flag = _NEW_ARRAY_FOGCOORD;
91 case GL_SECONDARY_COLOR_ARRAY_EXT:
92 var = &ctx->Array.ArrayObj->SecondaryColor.Enabled;
93 flag = _NEW_ARRAY_COLOR1;
96 #if FEATURE_point_size_array
97 case GL_POINT_SIZE_ARRAY_OES:
98 var = &ctx->Array.ArrayObj->PointSize.Enabled;
99 flag = _NEW_ARRAY_POINT_SIZE;
103 #if FEATURE_NV_vertex_program
104 case GL_VERTEX_ATTRIB_ARRAY0_NV:
105 case GL_VERTEX_ATTRIB_ARRAY1_NV:
106 case GL_VERTEX_ATTRIB_ARRAY2_NV:
107 case GL_VERTEX_ATTRIB_ARRAY3_NV:
108 case GL_VERTEX_ATTRIB_ARRAY4_NV:
109 case GL_VERTEX_ATTRIB_ARRAY5_NV:
110 case GL_VERTEX_ATTRIB_ARRAY6_NV:
111 case GL_VERTEX_ATTRIB_ARRAY7_NV:
112 case GL_VERTEX_ATTRIB_ARRAY8_NV:
113 case GL_VERTEX_ATTRIB_ARRAY9_NV:
114 case GL_VERTEX_ATTRIB_ARRAY10_NV:
115 case GL_VERTEX_ATTRIB_ARRAY11_NV:
116 case GL_VERTEX_ATTRIB_ARRAY12_NV:
117 case GL_VERTEX_ATTRIB_ARRAY13_NV:
118 case GL_VERTEX_ATTRIB_ARRAY14_NV:
119 case GL_VERTEX_ATTRIB_ARRAY15_NV:
120 CHECK_EXTENSION(NV_vertex_program, cap);
122 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
123 var = &ctx->Array.ArrayObj->VertexAttrib[n].Enabled;
124 flag = _NEW_ARRAY_ATTRIB(n);
127 #endif /* FEATURE_NV_vertex_program */
130 _mesa_error( ctx, GL_INVALID_ENUM,
131 "glEnable/DisableClientState(0x%x)", cap);
138 FLUSH_VERTICES(ctx, _NEW_ARRAY);
139 ctx->Array.NewState |= flag;
141 _ae_invalidate_state(ctx, _NEW_ARRAY);
146 ctx->Array.ArrayObj->_Enabled |= flag;
148 ctx->Array.ArrayObj->_Enabled &= ~flag;
150 if (ctx->Driver.Enable) {
151 ctx->Driver.Enable( ctx, cap, state );
157 * Enable GL capability.
158 * \param cap state to enable/disable.
160 * Get's the current context, assures that we're outside glBegin()/glEnd() and
161 * calls client_state().
164 _mesa_EnableClientState( GLenum cap )
166 GET_CURRENT_CONTEXT(ctx);
167 ASSERT_OUTSIDE_BEGIN_END(ctx);
168 client_state( ctx, cap, GL_TRUE );
173 * Disable GL capability.
174 * \param cap state to enable/disable.
176 * Get's the current context, assures that we're outside glBegin()/glEnd() and
177 * calls client_state().
180 _mesa_DisableClientState( GLenum cap )
182 GET_CURRENT_CONTEXT(ctx);
183 ASSERT_OUTSIDE_BEGIN_END(ctx);
184 client_state( ctx, cap, GL_FALSE );
188 #undef CHECK_EXTENSION
189 #define CHECK_EXTENSION(EXTNAME, CAP) \
190 if (!ctx->Extensions.EXTNAME) { \
191 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
192 state ? "Enable" : "Disable", CAP); \
196 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
197 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
198 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
199 state ? "Enable" : "Disable", CAP); \
205 * Helper function to enable or disable a texture target.
208 enable_texture(GLcontext *ctx, GLboolean state, GLbitfield bit)
210 const GLuint curr = ctx->Texture.CurrentUnit;
211 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
212 const GLuint newenabled = (!state)
213 ? (texUnit->Enabled & ~bit) : (texUnit->Enabled | bit);
215 if (!ctx->DrawBuffer->Visual.rgbMode || texUnit->Enabled == newenabled)
218 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
219 texUnit->Enabled = newenabled;
225 * Helper function to enable or disable state.
227 * \param ctx GL context.
228 * \param cap the state to enable/disable
229 * \param state whether to enable or disable the specified capability.
231 * Updates the current context and flushes the vertices as needed. For
232 * capabilities associated with extensions it verifies that those extensions
233 * are effectivly present before updating. Notifies the driver via
234 * dd_function_table::Enable.
237 _mesa_set_enable(GLcontext *ctx, GLenum cap, GLboolean state)
239 if (MESA_VERBOSE & VERBOSE_API)
240 _mesa_debug(ctx, "%s %s (newstate is %x)\n",
241 state ? "glEnable" : "glDisable",
242 _mesa_lookup_enum_by_nr(cap),
247 if (ctx->Color.AlphaEnabled == state)
249 FLUSH_VERTICES(ctx, _NEW_COLOR);
250 ctx->Color.AlphaEnabled = state;
253 if (ctx->Eval.AutoNormal == state)
255 FLUSH_VERTICES(ctx, _NEW_EVAL);
256 ctx->Eval.AutoNormal = state;
259 if (ctx->Color.BlendEnabled == state)
261 FLUSH_VERTICES(ctx, _NEW_COLOR);
262 ctx->Color.BlendEnabled = state;
272 const GLuint p = cap - GL_CLIP_PLANE0;
274 if ((ctx->Transform.ClipPlanesEnabled & (1 << p)) == ((GLuint) state << p))
277 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
280 ctx->Transform.ClipPlanesEnabled |= (1 << p);
282 if (_math_matrix_is_dirty(ctx->ProjectionMatrixStack.Top))
283 _math_matrix_analyse( ctx->ProjectionMatrixStack.Top );
285 /* This derived state also calculated in clip.c and
286 * from _mesa_update_state() on changes to EyeUserPlane
287 * and ctx->ProjectionMatrix respectively.
289 _mesa_transform_vector( ctx->Transform._ClipUserPlane[p],
290 ctx->Transform.EyeUserPlane[p],
291 ctx->ProjectionMatrixStack.Top->inv );
294 ctx->Transform.ClipPlanesEnabled &= ~(1 << p);
299 case GL_COLOR_MATERIAL:
300 if (ctx->Light.ColorMaterialEnabled == state)
302 FLUSH_VERTICES(ctx, _NEW_LIGHT);
303 FLUSH_CURRENT(ctx, 0);
304 ctx->Light.ColorMaterialEnabled = state;
306 _mesa_update_color_material( ctx,
307 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
311 if (ctx->Polygon.CullFlag == state)
313 FLUSH_VERTICES(ctx, _NEW_POLYGON);
314 ctx->Polygon.CullFlag = state;
316 case GL_CULL_VERTEX_EXT:
317 CHECK_EXTENSION(EXT_cull_vertex, cap);
318 if (ctx->Transform.CullVertexFlag == state)
320 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
321 ctx->Transform.CullVertexFlag = state;
324 if (state && ctx->DrawBuffer->Visual.depthBits == 0) {
325 _mesa_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer");
328 if (ctx->Depth.Test == state)
330 FLUSH_VERTICES(ctx, _NEW_DEPTH);
331 ctx->Depth.Test = state;
335 state = GL_FALSE; /* MESA_NO_DITHER env var */
337 if (ctx->Color.DitherFlag == state)
339 FLUSH_VERTICES(ctx, _NEW_COLOR);
340 ctx->Color.DitherFlag = state;
343 if (ctx->Fog.Enabled == state)
345 FLUSH_VERTICES(ctx, _NEW_FOG);
346 ctx->Fog.Enabled = state;
349 CHECK_EXTENSION(EXT_histogram, cap);
350 if (ctx->Pixel.HistogramEnabled == state)
352 FLUSH_VERTICES(ctx, _NEW_PIXEL);
353 ctx->Pixel.HistogramEnabled = state;
363 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)
365 FLUSH_VERTICES(ctx, _NEW_LIGHT);
366 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
368 insert_at_tail(&ctx->Light.EnabledList,
369 &ctx->Light.Light[cap-GL_LIGHT0]);
372 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
376 if (ctx->Light.Enabled == state)
378 FLUSH_VERTICES(ctx, _NEW_LIGHT);
379 ctx->Light.Enabled = state;
380 if (ctx->Light.Enabled && ctx->Light.Model.TwoSide)
381 ctx->_TriangleCaps |= DD_TRI_LIGHT_TWOSIDE;
383 ctx->_TriangleCaps &= ~DD_TRI_LIGHT_TWOSIDE;
386 if (ctx->Line.SmoothFlag == state)
388 FLUSH_VERTICES(ctx, _NEW_LINE);
389 ctx->Line.SmoothFlag = state;
390 ctx->_TriangleCaps ^= DD_LINE_SMOOTH;
392 case GL_LINE_STIPPLE:
393 if (ctx->Line.StippleFlag == state)
395 FLUSH_VERTICES(ctx, _NEW_LINE);
396 ctx->Line.StippleFlag = state;
397 ctx->_TriangleCaps ^= DD_LINE_STIPPLE;
399 case GL_INDEX_LOGIC_OP:
400 if (ctx->Color.IndexLogicOpEnabled == state)
402 FLUSH_VERTICES(ctx, _NEW_COLOR);
403 ctx->Color.IndexLogicOpEnabled = state;
405 case GL_COLOR_LOGIC_OP:
406 if (ctx->Color.ColorLogicOpEnabled == state)
408 FLUSH_VERTICES(ctx, _NEW_COLOR);
409 ctx->Color.ColorLogicOpEnabled = state;
411 case GL_MAP1_COLOR_4:
412 if (ctx->Eval.Map1Color4 == state)
414 FLUSH_VERTICES(ctx, _NEW_EVAL);
415 ctx->Eval.Map1Color4 = state;
418 if (ctx->Eval.Map1Index == state)
420 FLUSH_VERTICES(ctx, _NEW_EVAL);
421 ctx->Eval.Map1Index = state;
424 if (ctx->Eval.Map1Normal == state)
426 FLUSH_VERTICES(ctx, _NEW_EVAL);
427 ctx->Eval.Map1Normal = state;
429 case GL_MAP1_TEXTURE_COORD_1:
430 if (ctx->Eval.Map1TextureCoord1 == state)
432 FLUSH_VERTICES(ctx, _NEW_EVAL);
433 ctx->Eval.Map1TextureCoord1 = state;
435 case GL_MAP1_TEXTURE_COORD_2:
436 if (ctx->Eval.Map1TextureCoord2 == state)
438 FLUSH_VERTICES(ctx, _NEW_EVAL);
439 ctx->Eval.Map1TextureCoord2 = state;
441 case GL_MAP1_TEXTURE_COORD_3:
442 if (ctx->Eval.Map1TextureCoord3 == state)
444 FLUSH_VERTICES(ctx, _NEW_EVAL);
445 ctx->Eval.Map1TextureCoord3 = state;
447 case GL_MAP1_TEXTURE_COORD_4:
448 if (ctx->Eval.Map1TextureCoord4 == state)
450 FLUSH_VERTICES(ctx, _NEW_EVAL);
451 ctx->Eval.Map1TextureCoord4 = state;
453 case GL_MAP1_VERTEX_3:
454 if (ctx->Eval.Map1Vertex3 == state)
456 FLUSH_VERTICES(ctx, _NEW_EVAL);
457 ctx->Eval.Map1Vertex3 = state;
459 case GL_MAP1_VERTEX_4:
460 if (ctx->Eval.Map1Vertex4 == state)
462 FLUSH_VERTICES(ctx, _NEW_EVAL);
463 ctx->Eval.Map1Vertex4 = state;
465 case GL_MAP2_COLOR_4:
466 if (ctx->Eval.Map2Color4 == state)
468 FLUSH_VERTICES(ctx, _NEW_EVAL);
469 ctx->Eval.Map2Color4 = state;
472 if (ctx->Eval.Map2Index == state)
474 FLUSH_VERTICES(ctx, _NEW_EVAL);
475 ctx->Eval.Map2Index = state;
478 if (ctx->Eval.Map2Normal == state)
480 FLUSH_VERTICES(ctx, _NEW_EVAL);
481 ctx->Eval.Map2Normal = state;
483 case GL_MAP2_TEXTURE_COORD_1:
484 if (ctx->Eval.Map2TextureCoord1 == state)
486 FLUSH_VERTICES(ctx, _NEW_EVAL);
487 ctx->Eval.Map2TextureCoord1 = state;
489 case GL_MAP2_TEXTURE_COORD_2:
490 if (ctx->Eval.Map2TextureCoord2 == state)
492 FLUSH_VERTICES(ctx, _NEW_EVAL);
493 ctx->Eval.Map2TextureCoord2 = state;
495 case GL_MAP2_TEXTURE_COORD_3:
496 if (ctx->Eval.Map2TextureCoord3 == state)
498 FLUSH_VERTICES(ctx, _NEW_EVAL);
499 ctx->Eval.Map2TextureCoord3 = state;
501 case GL_MAP2_TEXTURE_COORD_4:
502 if (ctx->Eval.Map2TextureCoord4 == state)
504 FLUSH_VERTICES(ctx, _NEW_EVAL);
505 ctx->Eval.Map2TextureCoord4 = state;
507 case GL_MAP2_VERTEX_3:
508 if (ctx->Eval.Map2Vertex3 == state)
510 FLUSH_VERTICES(ctx, _NEW_EVAL);
511 ctx->Eval.Map2Vertex3 = state;
513 case GL_MAP2_VERTEX_4:
514 if (ctx->Eval.Map2Vertex4 == state)
516 FLUSH_VERTICES(ctx, _NEW_EVAL);
517 ctx->Eval.Map2Vertex4 = state;
520 if (ctx->Pixel.MinMaxEnabled == state)
522 FLUSH_VERTICES(ctx, _NEW_PIXEL);
523 ctx->Pixel.MinMaxEnabled = state;
526 if (ctx->Transform.Normalize == state)
528 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
529 ctx->Transform.Normalize = state;
531 case GL_POINT_SMOOTH:
532 if (ctx->Point.SmoothFlag == state)
534 FLUSH_VERTICES(ctx, _NEW_POINT);
535 ctx->Point.SmoothFlag = state;
536 ctx->_TriangleCaps ^= DD_POINT_SMOOTH;
538 case GL_POLYGON_SMOOTH:
539 if (ctx->Polygon.SmoothFlag == state)
541 FLUSH_VERTICES(ctx, _NEW_POLYGON);
542 ctx->Polygon.SmoothFlag = state;
543 ctx->_TriangleCaps ^= DD_TRI_SMOOTH;
545 case GL_POLYGON_STIPPLE:
546 if (ctx->Polygon.StippleFlag == state)
548 FLUSH_VERTICES(ctx, _NEW_POLYGON);
549 ctx->Polygon.StippleFlag = state;
550 ctx->_TriangleCaps ^= DD_TRI_STIPPLE;
552 case GL_POLYGON_OFFSET_POINT:
553 if (ctx->Polygon.OffsetPoint == state)
555 FLUSH_VERTICES(ctx, _NEW_POLYGON);
556 ctx->Polygon.OffsetPoint = state;
558 case GL_POLYGON_OFFSET_LINE:
559 if (ctx->Polygon.OffsetLine == state)
561 FLUSH_VERTICES(ctx, _NEW_POLYGON);
562 ctx->Polygon.OffsetLine = state;
564 case GL_POLYGON_OFFSET_FILL:
565 /*case GL_POLYGON_OFFSET_EXT:*/
566 if (ctx->Polygon.OffsetFill == state)
568 FLUSH_VERTICES(ctx, _NEW_POLYGON);
569 ctx->Polygon.OffsetFill = state;
571 case GL_RESCALE_NORMAL_EXT:
572 if (ctx->Transform.RescaleNormals == state)
574 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
575 ctx->Transform.RescaleNormals = state;
577 case GL_SCISSOR_TEST:
578 if (ctx->Scissor.Enabled == state)
580 FLUSH_VERTICES(ctx, _NEW_SCISSOR);
581 ctx->Scissor.Enabled = state;
583 case GL_SHARED_TEXTURE_PALETTE_EXT:
584 if (ctx->Texture.SharedPalette == state)
586 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
587 ctx->Texture.SharedPalette = state;
589 case GL_STENCIL_TEST:
590 if (state && ctx->DrawBuffer->Visual.stencilBits == 0) {
592 "glEnable(GL_STENCIL_TEST) but no stencil buffer");
595 if (ctx->Stencil.Enabled == state)
597 FLUSH_VERTICES(ctx, _NEW_STENCIL);
598 ctx->Stencil.Enabled = state;
601 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
606 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
611 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
615 case GL_TEXTURE_GEN_Q: {
616 GLuint unit = ctx->Texture.CurrentUnit;
617 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
618 GLuint newenabled = texUnit->TexGenEnabled & ~Q_BIT;
621 if (texUnit->TexGenEnabled == newenabled)
623 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
624 texUnit->TexGenEnabled = newenabled;
627 case GL_TEXTURE_GEN_R: {
628 GLuint unit = ctx->Texture.CurrentUnit;
629 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
630 GLuint newenabled = texUnit->TexGenEnabled & ~R_BIT;
633 if (texUnit->TexGenEnabled == newenabled)
635 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
636 texUnit->TexGenEnabled = newenabled;
639 case GL_TEXTURE_GEN_S: {
640 GLuint unit = ctx->Texture.CurrentUnit;
641 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
642 GLuint newenabled = texUnit->TexGenEnabled & ~S_BIT;
645 if (texUnit->TexGenEnabled == newenabled)
647 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
648 texUnit->TexGenEnabled = newenabled;
651 case GL_TEXTURE_GEN_T: {
652 GLuint unit = ctx->Texture.CurrentUnit;
653 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[unit];
654 GLuint newenabled = texUnit->TexGenEnabled & ~T_BIT;
657 if (texUnit->TexGenEnabled == newenabled)
659 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
660 texUnit->TexGenEnabled = newenabled;
667 case GL_VERTEX_ARRAY:
668 case GL_NORMAL_ARRAY:
671 case GL_TEXTURE_COORD_ARRAY:
672 case GL_EDGE_FLAG_ARRAY:
673 case GL_FOG_COORDINATE_ARRAY_EXT:
674 case GL_SECONDARY_COLOR_ARRAY_EXT:
675 case GL_POINT_SIZE_ARRAY_OES:
676 client_state( ctx, cap, state );
679 /* GL_SGI_color_table */
680 case GL_COLOR_TABLE_SGI:
681 CHECK_EXTENSION(SGI_color_table, cap);
682 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] == state)
684 FLUSH_VERTICES(ctx, _NEW_PIXEL);
685 ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION] = state;
687 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
688 CHECK_EXTENSION(SGI_color_table, cap);
689 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] == state)
691 FLUSH_VERTICES(ctx, _NEW_PIXEL);
692 ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION] = state;
694 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
695 CHECK_EXTENSION(SGI_color_table, cap);
696 if (ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] == state)
698 FLUSH_VERTICES(ctx, _NEW_PIXEL);
699 ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX] = state;
701 case GL_TEXTURE_COLOR_TABLE_SGI:
702 CHECK_EXTENSION(SGI_texture_color_table, cap);
703 if (ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled == state)
705 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
706 ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled = state;
709 /* GL_EXT_convolution */
710 case GL_CONVOLUTION_1D:
711 CHECK_EXTENSION(EXT_convolution, cap);
712 if (ctx->Pixel.Convolution1DEnabled == state)
714 FLUSH_VERTICES(ctx, _NEW_PIXEL);
715 ctx->Pixel.Convolution1DEnabled = state;
717 case GL_CONVOLUTION_2D:
718 CHECK_EXTENSION(EXT_convolution, cap);
719 if (ctx->Pixel.Convolution2DEnabled == state)
721 FLUSH_VERTICES(ctx, _NEW_PIXEL);
722 ctx->Pixel.Convolution2DEnabled = state;
724 case GL_SEPARABLE_2D:
725 CHECK_EXTENSION(EXT_convolution, cap);
726 if (ctx->Pixel.Separable2DEnabled == state)
728 FLUSH_VERTICES(ctx, _NEW_PIXEL);
729 ctx->Pixel.Separable2DEnabled = state;
732 /* GL_ARB_texture_cube_map */
733 case GL_TEXTURE_CUBE_MAP_ARB:
734 CHECK_EXTENSION(ARB_texture_cube_map, cap);
735 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {
740 /* GL_EXT_secondary_color */
741 case GL_COLOR_SUM_EXT:
742 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program, cap);
743 if (ctx->Fog.ColorSumEnabled == state)
745 FLUSH_VERTICES(ctx, _NEW_FOG);
746 ctx->Fog.ColorSumEnabled = state;
749 /* GL_ARB_multisample */
750 case GL_MULTISAMPLE_ARB:
751 CHECK_EXTENSION(ARB_multisample, cap);
752 if (ctx->Multisample.Enabled == state)
754 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
755 ctx->Multisample.Enabled = state;
757 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
758 CHECK_EXTENSION(ARB_multisample, cap);
759 if (ctx->Multisample.SampleAlphaToCoverage == state)
761 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
762 ctx->Multisample.SampleAlphaToCoverage = state;
764 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
765 CHECK_EXTENSION(ARB_multisample, cap);
766 if (ctx->Multisample.SampleAlphaToOne == state)
768 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
769 ctx->Multisample.SampleAlphaToOne = state;
771 case GL_SAMPLE_COVERAGE_ARB:
772 CHECK_EXTENSION(ARB_multisample, cap);
773 if (ctx->Multisample.SampleCoverage == state)
775 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
776 ctx->Multisample.SampleCoverage = state;
778 case GL_SAMPLE_COVERAGE_INVERT_ARB:
779 CHECK_EXTENSION(ARB_multisample, cap);
780 if (ctx->Multisample.SampleCoverageInvert == state)
782 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
783 ctx->Multisample.SampleCoverageInvert = state;
786 /* GL_IBM_rasterpos_clip */
787 case GL_RASTER_POSITION_UNCLIPPED_IBM:
788 CHECK_EXTENSION(IBM_rasterpos_clip, cap);
789 if (ctx->Transform.RasterPositionUnclipped == state)
791 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
792 ctx->Transform.RasterPositionUnclipped = state;
795 /* GL_NV_point_sprite */
796 case GL_POINT_SPRITE_NV:
797 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite, cap);
798 if (ctx->Point.PointSprite == state)
800 FLUSH_VERTICES(ctx, _NEW_POINT);
801 ctx->Point.PointSprite = state;
804 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
805 case GL_VERTEX_PROGRAM_ARB:
806 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
807 if (ctx->VertexProgram.Enabled == state)
809 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
810 ctx->VertexProgram.Enabled = state;
812 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
813 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
814 if (ctx->VertexProgram.PointSizeEnabled == state)
816 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
817 ctx->VertexProgram.PointSizeEnabled = state;
819 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
820 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program, cap);
821 if (ctx->VertexProgram.TwoSideEnabled == state)
823 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
824 ctx->VertexProgram.TwoSideEnabled = state;
827 #if FEATURE_NV_vertex_program
828 case GL_MAP1_VERTEX_ATTRIB0_4_NV:
829 case GL_MAP1_VERTEX_ATTRIB1_4_NV:
830 case GL_MAP1_VERTEX_ATTRIB2_4_NV:
831 case GL_MAP1_VERTEX_ATTRIB3_4_NV:
832 case GL_MAP1_VERTEX_ATTRIB4_4_NV:
833 case GL_MAP1_VERTEX_ATTRIB5_4_NV:
834 case GL_MAP1_VERTEX_ATTRIB6_4_NV:
835 case GL_MAP1_VERTEX_ATTRIB7_4_NV:
836 case GL_MAP1_VERTEX_ATTRIB8_4_NV:
837 case GL_MAP1_VERTEX_ATTRIB9_4_NV:
838 case GL_MAP1_VERTEX_ATTRIB10_4_NV:
839 case GL_MAP1_VERTEX_ATTRIB11_4_NV:
840 case GL_MAP1_VERTEX_ATTRIB12_4_NV:
841 case GL_MAP1_VERTEX_ATTRIB13_4_NV:
842 case GL_MAP1_VERTEX_ATTRIB14_4_NV:
843 case GL_MAP1_VERTEX_ATTRIB15_4_NV:
844 CHECK_EXTENSION(NV_vertex_program, cap);
846 const GLuint map = (GLuint) (cap - GL_MAP1_VERTEX_ATTRIB0_4_NV);
847 FLUSH_VERTICES(ctx, _NEW_EVAL);
848 ctx->Eval.Map1Attrib[map] = state;
851 case GL_MAP2_VERTEX_ATTRIB0_4_NV:
852 case GL_MAP2_VERTEX_ATTRIB1_4_NV:
853 case GL_MAP2_VERTEX_ATTRIB2_4_NV:
854 case GL_MAP2_VERTEX_ATTRIB3_4_NV:
855 case GL_MAP2_VERTEX_ATTRIB4_4_NV:
856 case GL_MAP2_VERTEX_ATTRIB5_4_NV:
857 case GL_MAP2_VERTEX_ATTRIB6_4_NV:
858 case GL_MAP2_VERTEX_ATTRIB7_4_NV:
859 case GL_MAP2_VERTEX_ATTRIB8_4_NV:
860 case GL_MAP2_VERTEX_ATTRIB9_4_NV:
861 case GL_MAP2_VERTEX_ATTRIB10_4_NV:
862 case GL_MAP2_VERTEX_ATTRIB11_4_NV:
863 case GL_MAP2_VERTEX_ATTRIB12_4_NV:
864 case GL_MAP2_VERTEX_ATTRIB13_4_NV:
865 case GL_MAP2_VERTEX_ATTRIB14_4_NV:
866 case GL_MAP2_VERTEX_ATTRIB15_4_NV:
867 CHECK_EXTENSION(NV_vertex_program, cap);
869 const GLuint map = (GLuint) (cap - GL_MAP2_VERTEX_ATTRIB0_4_NV);
870 FLUSH_VERTICES(ctx, _NEW_EVAL);
871 ctx->Eval.Map2Attrib[map] = state;
874 #endif /* FEATURE_NV_vertex_program */
876 #if FEATURE_NV_fragment_program
877 case GL_FRAGMENT_PROGRAM_NV:
878 CHECK_EXTENSION(NV_fragment_program, cap);
879 if (ctx->FragmentProgram.Enabled == state)
881 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
882 ctx->FragmentProgram.Enabled = state;
884 #endif /* FEATURE_NV_fragment_program */
886 /* GL_NV_texture_rectangle */
887 case GL_TEXTURE_RECTANGLE_NV:
888 CHECK_EXTENSION(NV_texture_rectangle, cap);
889 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
894 /* GL_EXT_stencil_two_side */
895 case GL_STENCIL_TEST_TWO_SIDE_EXT:
896 CHECK_EXTENSION(EXT_stencil_two_side, cap);
897 if (ctx->Stencil.TestTwoSide == state)
899 FLUSH_VERTICES(ctx, _NEW_STENCIL);
900 ctx->Stencil.TestTwoSide = state;
902 ctx->_TriangleCaps |= DD_TRI_TWOSTENCIL;
904 ctx->_TriangleCaps &= ~DD_TRI_TWOSTENCIL;
907 #if FEATURE_ARB_fragment_program
908 case GL_FRAGMENT_PROGRAM_ARB:
909 CHECK_EXTENSION(ARB_fragment_program, cap);
910 if (ctx->FragmentProgram.Enabled == state)
912 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
913 ctx->FragmentProgram.Enabled = state;
915 #endif /* FEATURE_ARB_fragment_program */
917 /* GL_EXT_depth_bounds_test */
918 case GL_DEPTH_BOUNDS_TEST_EXT:
919 CHECK_EXTENSION(EXT_depth_bounds_test, cap);
920 if (state && ctx->DrawBuffer->Visual.depthBits == 0) {
922 "glEnable(GL_DEPTH_BOUNDS_TEST_EXT) but no depth buffer");
925 if (ctx->Depth.BoundsTest == state)
927 FLUSH_VERTICES(ctx, _NEW_DEPTH);
928 ctx->Depth.BoundsTest = state;
931 /* GL_MESA_program_debug */
932 #if FEATURE_MESA_program_debug
933 case GL_FRAGMENT_PROGRAM_CALLBACK_MESA:
934 CHECK_EXTENSION(MESA_program_debug, cap);
935 ctx->FragmentProgram.CallbackEnabled = state;
937 case GL_VERTEX_PROGRAM_CALLBACK_MESA:
938 CHECK_EXTENSION(MESA_program_debug, cap);
939 ctx->VertexProgram.CallbackEnabled = state;
943 #if FEATURE_ATI_fragment_shader
944 case GL_FRAGMENT_SHADER_ATI:
945 CHECK_EXTENSION(ATI_fragment_shader, cap);
946 if (ctx->ATIFragmentShader.Enabled == state)
948 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
949 ctx->ATIFragmentShader.Enabled = state;
953 /* GL_MESA_texture_array */
954 case GL_TEXTURE_1D_ARRAY_EXT:
955 CHECK_EXTENSION(MESA_texture_array, cap);
956 if (!enable_texture(ctx, state, TEXTURE_1D_ARRAY_BIT)) {
961 case GL_TEXTURE_2D_ARRAY_EXT:
962 CHECK_EXTENSION(MESA_texture_array, cap);
963 if (!enable_texture(ctx, state, TEXTURE_2D_ARRAY_BIT)) {
969 _mesa_error(ctx, GL_INVALID_ENUM,
970 "%s(0x%x)", state ? "glEnable" : "glDisable", cap);
974 if (ctx->Driver.Enable) {
975 ctx->Driver.Enable( ctx, cap, state );
981 * Enable GL capability. Called by glEnable()
982 * \param cap state to enable.
985 _mesa_Enable( GLenum cap )
987 GET_CURRENT_CONTEXT(ctx);
988 ASSERT_OUTSIDE_BEGIN_END(ctx);
990 _mesa_set_enable( ctx, cap, GL_TRUE );
995 * Disable GL capability. Called by glDisable()
996 * \param cap state to disable.
999 _mesa_Disable( GLenum cap )
1001 GET_CURRENT_CONTEXT(ctx);
1002 ASSERT_OUTSIDE_BEGIN_END(ctx);
1004 _mesa_set_enable( ctx, cap, GL_FALSE );
1008 #undef CHECK_EXTENSION
1009 #define CHECK_EXTENSION(EXTNAME) \
1010 if (!ctx->Extensions.EXTNAME) { \
1011 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1015 #undef CHECK_EXTENSION2
1016 #define CHECK_EXTENSION2(EXT1, EXT2) \
1017 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1018 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1024 * Helper function to determine whether a texture target is enabled.
1027 is_texture_enabled(GLcontext *ctx, GLbitfield bit)
1029 const struct gl_texture_unit *const texUnit =
1030 &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1031 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;
1036 * Return simple enable/disable state.
1038 * \param cap state variable to query.
1040 * Returns the state of the specified capability from the current GL context.
1041 * For the capabilities associated with extensions verifies that those
1042 * extensions are effectively present before reporting.
1044 GLboolean GLAPIENTRY
1045 _mesa_IsEnabled( GLenum cap )
1047 GET_CURRENT_CONTEXT(ctx);
1050 return ctx->Color.AlphaEnabled;
1051 case GL_AUTO_NORMAL:
1052 return ctx->Eval.AutoNormal;
1054 return ctx->Color.BlendEnabled;
1055 case GL_CLIP_PLANE0:
1056 case GL_CLIP_PLANE1:
1057 case GL_CLIP_PLANE2:
1058 case GL_CLIP_PLANE3:
1059 case GL_CLIP_PLANE4:
1060 case GL_CLIP_PLANE5:
1061 return (ctx->Transform.ClipPlanesEnabled >> (cap - GL_CLIP_PLANE0)) & 1;
1062 case GL_COLOR_MATERIAL:
1063 return ctx->Light.ColorMaterialEnabled;
1065 return ctx->Polygon.CullFlag;
1067 return ctx->Depth.Test;
1069 return ctx->Color.DitherFlag;
1071 return ctx->Fog.Enabled;
1073 return ctx->Light.Enabled;
1082 return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
1083 case GL_LINE_SMOOTH:
1084 return ctx->Line.SmoothFlag;
1085 case GL_LINE_STIPPLE:
1086 return ctx->Line.StippleFlag;
1087 case GL_INDEX_LOGIC_OP:
1088 return ctx->Color.IndexLogicOpEnabled;
1089 case GL_COLOR_LOGIC_OP:
1090 return ctx->Color.ColorLogicOpEnabled;
1091 case GL_MAP1_COLOR_4:
1092 return ctx->Eval.Map1Color4;
1094 return ctx->Eval.Map1Index;
1095 case GL_MAP1_NORMAL:
1096 return ctx->Eval.Map1Normal;
1097 case GL_MAP1_TEXTURE_COORD_1:
1098 return ctx->Eval.Map1TextureCoord1;
1099 case GL_MAP1_TEXTURE_COORD_2:
1100 return ctx->Eval.Map1TextureCoord2;
1101 case GL_MAP1_TEXTURE_COORD_3:
1102 return ctx->Eval.Map1TextureCoord3;
1103 case GL_MAP1_TEXTURE_COORD_4:
1104 return ctx->Eval.Map1TextureCoord4;
1105 case GL_MAP1_VERTEX_3:
1106 return ctx->Eval.Map1Vertex3;
1107 case GL_MAP1_VERTEX_4:
1108 return ctx->Eval.Map1Vertex4;
1109 case GL_MAP2_COLOR_4:
1110 return ctx->Eval.Map2Color4;
1112 return ctx->Eval.Map2Index;
1113 case GL_MAP2_NORMAL:
1114 return ctx->Eval.Map2Normal;
1115 case GL_MAP2_TEXTURE_COORD_1:
1116 return ctx->Eval.Map2TextureCoord1;
1117 case GL_MAP2_TEXTURE_COORD_2:
1118 return ctx->Eval.Map2TextureCoord2;
1119 case GL_MAP2_TEXTURE_COORD_3:
1120 return ctx->Eval.Map2TextureCoord3;
1121 case GL_MAP2_TEXTURE_COORD_4:
1122 return ctx->Eval.Map2TextureCoord4;
1123 case GL_MAP2_VERTEX_3:
1124 return ctx->Eval.Map2Vertex3;
1125 case GL_MAP2_VERTEX_4:
1126 return ctx->Eval.Map2Vertex4;
1128 return ctx->Transform.Normalize;
1129 case GL_POINT_SMOOTH:
1130 return ctx->Point.SmoothFlag;
1131 case GL_POLYGON_SMOOTH:
1132 return ctx->Polygon.SmoothFlag;
1133 case GL_POLYGON_STIPPLE:
1134 return ctx->Polygon.StippleFlag;
1135 case GL_POLYGON_OFFSET_POINT:
1136 return ctx->Polygon.OffsetPoint;
1137 case GL_POLYGON_OFFSET_LINE:
1138 return ctx->Polygon.OffsetLine;
1139 case GL_POLYGON_OFFSET_FILL:
1140 /*case GL_POLYGON_OFFSET_EXT:*/
1141 return ctx->Polygon.OffsetFill;
1142 case GL_RESCALE_NORMAL_EXT:
1143 return ctx->Transform.RescaleNormals;
1144 case GL_SCISSOR_TEST:
1145 return ctx->Scissor.Enabled;
1146 case GL_SHARED_TEXTURE_PALETTE_EXT:
1147 return ctx->Texture.SharedPalette;
1148 case GL_STENCIL_TEST:
1149 return ctx->Stencil.Enabled;
1151 return is_texture_enabled(ctx, TEXTURE_1D_BIT);
1153 return is_texture_enabled(ctx, TEXTURE_2D_BIT);
1155 return is_texture_enabled(ctx, TEXTURE_3D_BIT);
1156 case GL_TEXTURE_GEN_Q:
1158 const struct gl_texture_unit *texUnit;
1159 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1160 return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
1162 case GL_TEXTURE_GEN_R:
1164 const struct gl_texture_unit *texUnit;
1165 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1166 return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
1168 case GL_TEXTURE_GEN_S:
1170 const struct gl_texture_unit *texUnit;
1171 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1172 return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
1174 case GL_TEXTURE_GEN_T:
1176 const struct gl_texture_unit *texUnit;
1177 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1178 return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
1184 case GL_VERTEX_ARRAY:
1185 return (ctx->Array.ArrayObj->Vertex.Enabled != 0);
1186 case GL_NORMAL_ARRAY:
1187 return (ctx->Array.ArrayObj->Normal.Enabled != 0);
1188 case GL_COLOR_ARRAY:
1189 return (ctx->Array.ArrayObj->Color.Enabled != 0);
1190 case GL_INDEX_ARRAY:
1191 return (ctx->Array.ArrayObj->Index.Enabled != 0);
1192 case GL_TEXTURE_COORD_ARRAY:
1193 return (ctx->Array.ArrayObj->TexCoord[ctx->Array.ActiveTexture].Enabled != 0);
1194 case GL_EDGE_FLAG_ARRAY:
1195 return (ctx->Array.ArrayObj->EdgeFlag.Enabled != 0);
1196 case GL_FOG_COORDINATE_ARRAY_EXT:
1197 CHECK_EXTENSION(EXT_fog_coord);
1198 return (ctx->Array.ArrayObj->FogCoord.Enabled != 0);
1199 case GL_SECONDARY_COLOR_ARRAY_EXT:
1200 CHECK_EXTENSION(EXT_secondary_color);
1201 return (ctx->Array.ArrayObj->SecondaryColor.Enabled != 0);
1202 #if FEATURE_point_size_array
1203 case GL_POINT_SIZE_ARRAY_OES:
1204 return (ctx->Array.ArrayObj->PointSize.Enabled != 0);
1207 /* GL_EXT_histogram */
1209 CHECK_EXTENSION(EXT_histogram);
1210 return ctx->Pixel.HistogramEnabled;
1212 CHECK_EXTENSION(EXT_histogram);
1213 return ctx->Pixel.MinMaxEnabled;
1215 /* GL_SGI_color_table */
1216 case GL_COLOR_TABLE_SGI:
1217 CHECK_EXTENSION(SGI_color_table);
1218 return ctx->Pixel.ColorTableEnabled[COLORTABLE_PRECONVOLUTION];
1219 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI:
1220 CHECK_EXTENSION(SGI_color_table);
1221 return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCONVOLUTION];
1222 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI:
1223 CHECK_EXTENSION(SGI_color_table);
1224 return ctx->Pixel.ColorTableEnabled[COLORTABLE_POSTCOLORMATRIX];
1226 /* GL_SGI_texture_color_table */
1227 case GL_TEXTURE_COLOR_TABLE_SGI:
1228 CHECK_EXTENSION(SGI_texture_color_table);
1229 return ctx->Texture.Unit[ctx->Texture.CurrentUnit].ColorTableEnabled;
1231 /* GL_EXT_convolution */
1232 case GL_CONVOLUTION_1D:
1233 CHECK_EXTENSION(EXT_convolution);
1234 return ctx->Pixel.Convolution1DEnabled;
1235 case GL_CONVOLUTION_2D:
1236 CHECK_EXTENSION(EXT_convolution);
1237 return ctx->Pixel.Convolution2DEnabled;
1238 case GL_SEPARABLE_2D:
1239 CHECK_EXTENSION(EXT_convolution);
1240 return ctx->Pixel.Separable2DEnabled;
1242 /* GL_ARB_texture_cube_map */
1243 case GL_TEXTURE_CUBE_MAP_ARB:
1244 CHECK_EXTENSION(ARB_texture_cube_map);
1245 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);
1247 /* GL_EXT_secondary_color */
1248 case GL_COLOR_SUM_EXT:
1249 CHECK_EXTENSION2(EXT_secondary_color, ARB_vertex_program);
1250 return ctx->Fog.ColorSumEnabled;
1252 /* GL_ARB_multisample */
1253 case GL_MULTISAMPLE_ARB:
1254 CHECK_EXTENSION(ARB_multisample);
1255 return ctx->Multisample.Enabled;
1256 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
1257 CHECK_EXTENSION(ARB_multisample);
1258 return ctx->Multisample.SampleAlphaToCoverage;
1259 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
1260 CHECK_EXTENSION(ARB_multisample);
1261 return ctx->Multisample.SampleAlphaToOne;
1262 case GL_SAMPLE_COVERAGE_ARB:
1263 CHECK_EXTENSION(ARB_multisample);
1264 return ctx->Multisample.SampleCoverage;
1265 case GL_SAMPLE_COVERAGE_INVERT_ARB:
1266 CHECK_EXTENSION(ARB_multisample);
1267 return ctx->Multisample.SampleCoverageInvert;
1269 /* GL_IBM_rasterpos_clip */
1270 case GL_RASTER_POSITION_UNCLIPPED_IBM:
1271 CHECK_EXTENSION(IBM_rasterpos_clip);
1272 return ctx->Transform.RasterPositionUnclipped;
1274 /* GL_NV_point_sprite */
1275 case GL_POINT_SPRITE_NV:
1276 CHECK_EXTENSION2(NV_point_sprite, ARB_point_sprite)
1277 return ctx->Point.PointSprite;
1279 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1280 case GL_VERTEX_PROGRAM_ARB:
1281 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1282 return ctx->VertexProgram.Enabled;
1283 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
1284 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1285 return ctx->VertexProgram.PointSizeEnabled;
1286 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
1287 CHECK_EXTENSION2(ARB_vertex_program, NV_vertex_program);
1288 return ctx->VertexProgram.TwoSideEnabled;
1290 #if FEATURE_NV_vertex_program
1291 case GL_VERTEX_ATTRIB_ARRAY0_NV:
1292 case GL_VERTEX_ATTRIB_ARRAY1_NV:
1293 case GL_VERTEX_ATTRIB_ARRAY2_NV:
1294 case GL_VERTEX_ATTRIB_ARRAY3_NV:
1295 case GL_VERTEX_ATTRIB_ARRAY4_NV:
1296 case GL_VERTEX_ATTRIB_ARRAY5_NV:
1297 case GL_VERTEX_ATTRIB_ARRAY6_NV:
1298 case GL_VERTEX_ATTRIB_ARRAY7_NV:
1299 case GL_VERTEX_ATTRIB_ARRAY8_NV:
1300 case GL_VERTEX_ATTRIB_ARRAY9_NV:
1301 case GL_VERTEX_ATTRIB_ARRAY10_NV:
1302 case GL_VERTEX_ATTRIB_ARRAY11_NV:
1303 case GL_VERTEX_ATTRIB_ARRAY12_NV:
1304 case GL_VERTEX_ATTRIB_ARRAY13_NV:
1305 case GL_VERTEX_ATTRIB_ARRAY14_NV:
1306 case GL_VERTEX_ATTRIB_ARRAY15_NV:
1307 CHECK_EXTENSION(NV_vertex_program);
1309 GLint n = (GLint) cap - GL_VERTEX_ATTRIB_ARRAY0_NV;
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_MESA_program_debug */
1383 #if FEATURE_MESA_program_debug
1384 case GL_FRAGMENT_PROGRAM_CALLBACK_MESA:
1385 CHECK_EXTENSION(MESA_program_debug);
1386 return ctx->FragmentProgram.CallbackEnabled;
1387 case GL_VERTEX_PROGRAM_CALLBACK_MESA:
1388 CHECK_EXTENSION(MESA_program_debug);
1389 return ctx->VertexProgram.CallbackEnabled;
1392 #if FEATURE_ATI_fragment_shader
1393 case GL_FRAGMENT_SHADER_ATI:
1394 CHECK_EXTENSION(ATI_fragment_shader);
1395 return ctx->ATIFragmentShader.Enabled;
1396 #endif /* FEATURE_ATI_fragment_shader */
1398 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(0x%x)", (int) cap);