3 * Enable/disable/query GL capabilities.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2004 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"
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 client_state( GLcontext
*ctx
, GLenum cap
, GLboolean state
)
60 var
= &ctx
->Array
.Vertex
.Enabled
;
61 flag
= _NEW_ARRAY_VERTEX
;
64 var
= &ctx
->Array
.Normal
.Enabled
;
65 flag
= _NEW_ARRAY_NORMAL
;
68 var
= &ctx
->Array
.Color
.Enabled
;
69 flag
= _NEW_ARRAY_COLOR0
;
72 var
= &ctx
->Array
.Index
.Enabled
;
73 flag
= _NEW_ARRAY_INDEX
;
75 case GL_TEXTURE_COORD_ARRAY
:
76 var
= &ctx
->Array
.TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
;
77 flag
= _NEW_ARRAY_TEXCOORD(ctx
->Array
.ActiveTexture
);
79 case GL_EDGE_FLAG_ARRAY
:
80 var
= &ctx
->Array
.EdgeFlag
.Enabled
;
81 flag
= _NEW_ARRAY_EDGEFLAG
;
83 case GL_FOG_COORDINATE_ARRAY_EXT
:
84 var
= &ctx
->Array
.FogCoord
.Enabled
;
85 flag
= _NEW_ARRAY_FOGCOORD
;
87 case GL_SECONDARY_COLOR_ARRAY_EXT
:
88 var
= &ctx
->Array
.SecondaryColor
.Enabled
;
89 flag
= _NEW_ARRAY_COLOR1
;
92 #if FEATURE_NV_vertex_program
93 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
94 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
95 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
96 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
97 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
98 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
99 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
100 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
101 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
102 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
103 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
104 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
105 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
106 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
107 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
108 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
109 CHECK_EXTENSION(NV_vertex_program
, cap
);
111 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
112 var
= &ctx
->Array
.VertexAttrib
[n
].Enabled
;
113 flag
= _NEW_ARRAY_ATTRIB(n
);
116 #endif /* FEATURE_NV_vertex_program */
119 _mesa_error( ctx
, GL_INVALID_ENUM
,
120 "glEnable/DisableClientState(0x%x)", cap
);
127 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
128 ctx
->Array
.NewState
|= flag
;
132 ctx
->Array
._Enabled
|= flag
;
134 ctx
->Array
._Enabled
&= ~flag
;
136 if (ctx
->Driver
.Enable
) {
137 (*ctx
->Driver
.Enable
)( ctx
, cap
, state
);
143 * Enable GL capability.
145 * \param cap capability.
149 * Get's the current context, assures that we're outside glBegin()/glEnd() and
150 * calls client_state().
153 _mesa_EnableClientState( GLenum cap
)
155 GET_CURRENT_CONTEXT(ctx
);
156 ASSERT_OUTSIDE_BEGIN_END(ctx
);
157 client_state( ctx
, cap
, GL_TRUE
);
162 * Disable GL capability.
164 * \param cap capability.
168 * Get's the current context, assures that we're outside glBegin()/glEnd() and
169 * calls client_state().
172 _mesa_DisableClientState( GLenum cap
)
174 GET_CURRENT_CONTEXT(ctx
);
175 ASSERT_OUTSIDE_BEGIN_END(ctx
);
176 client_state( ctx
, cap
, GL_FALSE
);
180 #undef CHECK_EXTENSION
181 #define CHECK_EXTENSION(EXTNAME, CAP) \
182 if (!ctx->Extensions.EXTNAME) { \
183 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
184 state ? "Enable" : "Disable", CAP); \
188 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
189 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
190 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
191 state ? "Enable" : "Disable", CAP); \
198 * Perform glEnable() and glDisable() calls.
200 * \param ctx GL context.
201 * \param cap capability.
202 * \param state whether to enable or disable the specified capability.
204 * Updates the current context and flushes the vertices as needed. For
205 * capabilities associated with extensions it verifies that those extensions
206 * are effectivly present before updating. Notifies the driver via
207 * dd_function_table::Enable.
209 void _mesa_set_enable( GLcontext
*ctx
, GLenum cap
, GLboolean state
)
211 if (MESA_VERBOSE
& VERBOSE_API
)
212 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
213 state
? "glEnable" : "glDisable",
214 _mesa_lookup_enum_by_nr(cap
),
219 if (ctx
->Color
.AlphaEnabled
== state
)
221 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
222 ctx
->Color
.AlphaEnabled
= state
;
225 if (ctx
->Eval
.AutoNormal
== state
)
227 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
228 ctx
->Eval
.AutoNormal
= state
;
231 if (ctx
->Color
.BlendEnabled
== state
)
233 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
234 ctx
->Color
.BlendEnabled
= state
;
235 /* This is needed to support 1.1's RGB logic ops AND
236 * 1.0's blending logicops.
238 ctx
->Color
._LogicOpEnabled
=
239 (ctx
->Color
.ColorLogicOpEnabled
||
240 (state
&& ctx
->Color
.BlendEquationRGB
== GL_LOGIC_OP
));
250 const GLuint p
= cap
- GL_CLIP_PLANE0
;
252 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
)) == ((GLuint
) state
<< p
))
255 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
258 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
260 if (ctx
->ProjectionMatrixStack
.Top
->flags
& MAT_DIRTY
)
261 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
263 /* This derived state also calculated in clip.c and
264 * from _mesa_update_state() on changes to EyeUserPlane
265 * and ctx->ProjectionMatrix respectively.
267 _mesa_transform_vector( ctx
->Transform
._ClipUserPlane
[p
],
268 ctx
->Transform
.EyeUserPlane
[p
],
269 ctx
->ProjectionMatrixStack
.Top
->inv
);
272 ctx
->Transform
.ClipPlanesEnabled
&= ~(1 << p
);
277 case GL_COLOR_MATERIAL
:
278 if (ctx
->Light
.ColorMaterialEnabled
== state
)
280 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
281 FLUSH_CURRENT(ctx
, 0);
282 ctx
->Light
.ColorMaterialEnabled
= state
;
284 _mesa_update_color_material( ctx
,
285 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
289 if (ctx
->Polygon
.CullFlag
== state
)
291 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
292 ctx
->Polygon
.CullFlag
= state
;
295 case GL_CULL_VERTEX_EXT
:
296 CHECK_EXTENSION(EXT_cull_vertex
, cap
);
297 if (ctx
->Transform
.CullVertexFlag
== state
)
299 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
300 ctx
->Transform
.CullVertexFlag
= state
;
304 if (state
&& ctx
->Visual
.depthBits
==0) {
305 _mesa_warning(ctx
,"glEnable(GL_DEPTH_TEST) but no depth buffer");
308 if (ctx
->Depth
.Test
==state
)
310 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
311 ctx
->Depth
.Test
= state
;
315 state
= GL_FALSE
; /* MESA_NO_DITHER env var */
317 if (ctx
->Color
.DitherFlag
==state
)
319 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
320 ctx
->Color
.DitherFlag
= state
;
323 if (ctx
->Fog
.Enabled
==state
)
325 FLUSH_VERTICES(ctx
, _NEW_FOG
);
326 ctx
->Fog
.Enabled
= state
;
329 CHECK_EXTENSION(EXT_histogram
, cap
);
330 if (ctx
->Pixel
.HistogramEnabled
== state
)
332 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
333 ctx
->Pixel
.HistogramEnabled
= state
;
343 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
345 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
346 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
348 insert_at_tail(&ctx
->Light
.EnabledList
,
349 &ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
352 remove_from_list(&ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
356 if (ctx
->Light
.Enabled
== state
)
358 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
359 ctx
->Light
.Enabled
= state
;
361 if (ctx
->Light
.Enabled
&& ctx
->Light
.Model
.TwoSide
)
362 ctx
->_TriangleCaps
|= DD_TRI_LIGHT_TWOSIDE
;
364 ctx
->_TriangleCaps
&= ~DD_TRI_LIGHT_TWOSIDE
;
368 if (ctx
->Line
.SmoothFlag
== state
)
370 FLUSH_VERTICES(ctx
, _NEW_LINE
);
371 ctx
->Line
.SmoothFlag
= state
;
372 ctx
->_TriangleCaps
^= DD_LINE_SMOOTH
;
374 case GL_LINE_STIPPLE
:
375 if (ctx
->Line
.StippleFlag
== state
)
377 FLUSH_VERTICES(ctx
, _NEW_LINE
);
378 ctx
->Line
.StippleFlag
= state
;
379 ctx
->_TriangleCaps
^= DD_LINE_STIPPLE
;
381 case GL_INDEX_LOGIC_OP
:
382 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
384 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
385 ctx
->Color
.IndexLogicOpEnabled
= state
;
387 case GL_COLOR_LOGIC_OP
:
388 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
390 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
391 ctx
->Color
.ColorLogicOpEnabled
= state
;
392 /* This is needed to support 1.1's RGB logic ops AND
393 * 1.0's blending logicops.
395 ctx
->Color
._LogicOpEnabled
=
396 (state
|| (ctx
->Color
.BlendEnabled
&&
397 ctx
->Color
.BlendEquationRGB
== GL_LOGIC_OP
));
399 case GL_MAP1_COLOR_4
:
400 if (ctx
->Eval
.Map1Color4
== state
)
402 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
403 ctx
->Eval
.Map1Color4
= state
;
406 if (ctx
->Eval
.Map1Index
== state
)
408 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
409 ctx
->Eval
.Map1Index
= state
;
412 if (ctx
->Eval
.Map1Normal
== state
)
414 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
415 ctx
->Eval
.Map1Normal
= state
;
417 case GL_MAP1_TEXTURE_COORD_1
:
418 if (ctx
->Eval
.Map1TextureCoord1
== state
)
420 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
421 ctx
->Eval
.Map1TextureCoord1
= state
;
423 case GL_MAP1_TEXTURE_COORD_2
:
424 if (ctx
->Eval
.Map1TextureCoord2
== state
)
426 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
427 ctx
->Eval
.Map1TextureCoord2
= state
;
429 case GL_MAP1_TEXTURE_COORD_3
:
430 if (ctx
->Eval
.Map1TextureCoord3
== state
)
432 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
433 ctx
->Eval
.Map1TextureCoord3
= state
;
435 case GL_MAP1_TEXTURE_COORD_4
:
436 if (ctx
->Eval
.Map1TextureCoord4
== state
)
438 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
439 ctx
->Eval
.Map1TextureCoord4
= state
;
441 case GL_MAP1_VERTEX_3
:
442 if (ctx
->Eval
.Map1Vertex3
== state
)
444 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
445 ctx
->Eval
.Map1Vertex3
= state
;
447 case GL_MAP1_VERTEX_4
:
448 if (ctx
->Eval
.Map1Vertex4
== state
)
450 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
451 ctx
->Eval
.Map1Vertex4
= state
;
453 case GL_MAP2_COLOR_4
:
454 if (ctx
->Eval
.Map2Color4
== state
)
456 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
457 ctx
->Eval
.Map2Color4
= state
;
460 if (ctx
->Eval
.Map2Index
== state
)
462 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
463 ctx
->Eval
.Map2Index
= state
;
466 if (ctx
->Eval
.Map2Normal
== state
)
468 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
469 ctx
->Eval
.Map2Normal
= state
;
471 case GL_MAP2_TEXTURE_COORD_1
:
472 if (ctx
->Eval
.Map2TextureCoord1
== state
)
474 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
475 ctx
->Eval
.Map2TextureCoord1
= state
;
477 case GL_MAP2_TEXTURE_COORD_2
:
478 if (ctx
->Eval
.Map2TextureCoord2
== state
)
480 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
481 ctx
->Eval
.Map2TextureCoord2
= state
;
483 case GL_MAP2_TEXTURE_COORD_3
:
484 if (ctx
->Eval
.Map2TextureCoord3
== state
)
486 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
487 ctx
->Eval
.Map2TextureCoord3
= state
;
489 case GL_MAP2_TEXTURE_COORD_4
:
490 if (ctx
->Eval
.Map2TextureCoord4
== state
)
492 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
493 ctx
->Eval
.Map2TextureCoord4
= state
;
495 case GL_MAP2_VERTEX_3
:
496 if (ctx
->Eval
.Map2Vertex3
== state
)
498 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
499 ctx
->Eval
.Map2Vertex3
= state
;
501 case GL_MAP2_VERTEX_4
:
502 if (ctx
->Eval
.Map2Vertex4
== state
)
504 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
505 ctx
->Eval
.Map2Vertex4
= state
;
508 if (ctx
->Pixel
.MinMaxEnabled
== state
)
510 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
511 ctx
->Pixel
.MinMaxEnabled
= state
;
514 if (ctx
->Transform
.Normalize
== state
)
516 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
517 ctx
->Transform
.Normalize
= state
;
519 case GL_POINT_SMOOTH
:
520 if (ctx
->Point
.SmoothFlag
==state
)
522 FLUSH_VERTICES(ctx
, _NEW_POINT
);
523 ctx
->Point
.SmoothFlag
= state
;
524 ctx
->_TriangleCaps
^= DD_POINT_SMOOTH
;
526 case GL_POLYGON_SMOOTH
:
527 if (ctx
->Polygon
.SmoothFlag
==state
)
529 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
530 ctx
->Polygon
.SmoothFlag
= state
;
531 ctx
->_TriangleCaps
^= DD_TRI_SMOOTH
;
533 case GL_POLYGON_STIPPLE
:
534 if (ctx
->Polygon
.StippleFlag
==state
)
536 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
537 ctx
->Polygon
.StippleFlag
= state
;
538 ctx
->_TriangleCaps
^= DD_TRI_STIPPLE
;
540 case GL_POLYGON_OFFSET_POINT
:
541 if (ctx
->Polygon
.OffsetPoint
==state
)
543 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
544 ctx
->Polygon
.OffsetPoint
= state
;
546 case GL_POLYGON_OFFSET_LINE
:
547 if (ctx
->Polygon
.OffsetLine
==state
)
549 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
550 ctx
->Polygon
.OffsetLine
= state
;
552 case GL_POLYGON_OFFSET_FILL
:
553 /*case GL_POLYGON_OFFSET_EXT:*/
554 if (ctx
->Polygon
.OffsetFill
==state
)
556 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
557 ctx
->Polygon
.OffsetFill
= state
;
559 case GL_RESCALE_NORMAL_EXT
:
560 if (ctx
->Transform
.RescaleNormals
== state
)
562 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
563 ctx
->Transform
.RescaleNormals
= state
;
565 case GL_SCISSOR_TEST
:
566 if (ctx
->Scissor
.Enabled
==state
)
568 FLUSH_VERTICES(ctx
, _NEW_SCISSOR
);
569 ctx
->Scissor
.Enabled
= state
;
571 case GL_SHARED_TEXTURE_PALETTE_EXT
:
572 if (ctx
->Texture
.SharedPalette
== state
)
574 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
575 ctx
->Texture
.SharedPalette
= state
;
577 case GL_STENCIL_TEST
:
578 if (state
&& ctx
->Visual
.stencilBits
==0) {
580 "glEnable(GL_STENCIL_TEST) but no stencil buffer");
583 if (ctx
->Stencil
.Enabled
==state
)
585 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
586 ctx
->Stencil
.Enabled
= state
;
588 case GL_TEXTURE_1D
: {
589 const GLuint curr
= ctx
->Texture
.CurrentUnit
;
590 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[curr
];
591 GLuint newenabled
= texUnit
->Enabled
& ~TEXTURE_1D_BIT
;
593 newenabled
|= TEXTURE_1D_BIT
;
594 if (!ctx
->Visual
.rgbMode
|| texUnit
->Enabled
== newenabled
)
596 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
597 texUnit
->Enabled
= newenabled
;
600 case GL_TEXTURE_2D
: {
601 const GLuint curr
= ctx
->Texture
.CurrentUnit
;
602 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[curr
];
603 GLuint newenabled
= texUnit
->Enabled
& ~TEXTURE_2D_BIT
;
605 newenabled
|= TEXTURE_2D_BIT
;
606 if (!ctx
->Visual
.rgbMode
|| texUnit
->Enabled
== newenabled
)
608 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
609 texUnit
->Enabled
= newenabled
;
612 case GL_TEXTURE_3D
: {
613 const GLuint curr
= ctx
->Texture
.CurrentUnit
;
614 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[curr
];
615 GLuint newenabled
= texUnit
->Enabled
& ~TEXTURE_3D_BIT
;
617 newenabled
|= TEXTURE_3D_BIT
;
618 if (!ctx
->Visual
.rgbMode
|| texUnit
->Enabled
== newenabled
)
620 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
621 texUnit
->Enabled
= newenabled
;
624 case GL_TEXTURE_GEN_Q
: {
625 GLuint unit
= ctx
->Texture
.CurrentUnit
;
626 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
627 GLuint newenabled
= texUnit
->TexGenEnabled
& ~Q_BIT
;
630 if (texUnit
->TexGenEnabled
== newenabled
)
632 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
633 texUnit
->TexGenEnabled
= newenabled
;
636 case GL_TEXTURE_GEN_R
: {
637 GLuint unit
= ctx
->Texture
.CurrentUnit
;
638 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
639 GLuint newenabled
= texUnit
->TexGenEnabled
& ~R_BIT
;
642 if (texUnit
->TexGenEnabled
== newenabled
)
644 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
645 texUnit
->TexGenEnabled
= newenabled
;
649 case GL_TEXTURE_GEN_S
: {
650 GLuint unit
= ctx
->Texture
.CurrentUnit
;
651 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
652 GLuint newenabled
= texUnit
->TexGenEnabled
& ~S_BIT
;
655 if (texUnit
->TexGenEnabled
== newenabled
)
657 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
658 texUnit
->TexGenEnabled
= newenabled
;
662 case GL_TEXTURE_GEN_T
: {
663 GLuint unit
= ctx
->Texture
.CurrentUnit
;
664 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[unit
];
665 GLuint newenabled
= texUnit
->TexGenEnabled
& ~T_BIT
;
668 if (texUnit
->TexGenEnabled
== newenabled
)
670 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
671 texUnit
->TexGenEnabled
= newenabled
;
679 case GL_VERTEX_ARRAY
:
680 case GL_NORMAL_ARRAY
:
683 case GL_TEXTURE_COORD_ARRAY
:
684 case GL_EDGE_FLAG_ARRAY
:
685 case GL_FOG_COORDINATE_ARRAY_EXT
:
686 case GL_SECONDARY_COLOR_ARRAY_EXT
:
687 client_state( ctx
, cap
, state
);
690 /* GL_HP_occlusion_test */
691 case GL_OCCLUSION_TEST_HP
:
692 CHECK_EXTENSION(HP_occlusion_test
, cap
);
693 if (ctx
->Depth
.OcclusionTest
== state
)
695 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
696 ctx
->Depth
.OcclusionTest
= state
;
698 ctx
->OcclusionResult
= ctx
->OcclusionResultSaved
;
700 ctx
->OcclusionResultSaved
= ctx
->OcclusionResult
;
703 /* GL_SGIS_pixel_texture */
704 case GL_PIXEL_TEXTURE_SGIS
:
705 CHECK_EXTENSION(SGIS_pixel_texture
, cap
);
706 if (ctx
->Pixel
.PixelTextureEnabled
== state
)
708 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
709 ctx
->Pixel
.PixelTextureEnabled
= state
;
712 /* GL_SGIX_pixel_texture */
713 case GL_PIXEL_TEX_GEN_SGIX
:
714 CHECK_EXTENSION(SGIX_pixel_texture
, cap
);
715 if (ctx
->Pixel
.PixelTextureEnabled
== state
)
717 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
718 ctx
->Pixel
.PixelTextureEnabled
= state
;
721 /* GL_SGI_color_table */
722 case GL_COLOR_TABLE_SGI
:
723 CHECK_EXTENSION(SGI_color_table
, cap
);
724 if (ctx
->Pixel
.ColorTableEnabled
== state
)
726 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
727 ctx
->Pixel
.ColorTableEnabled
= state
;
729 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
730 CHECK_EXTENSION(SGI_color_table
, cap
);
731 if (ctx
->Pixel
.PostConvolutionColorTableEnabled
== state
)
733 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
734 ctx
->Pixel
.PostConvolutionColorTableEnabled
= state
;
736 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
737 CHECK_EXTENSION(SGI_color_table
, cap
);
738 if (ctx
->Pixel
.PostColorMatrixColorTableEnabled
== state
)
740 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
741 ctx
->Pixel
.PostColorMatrixColorTableEnabled
= state
;
743 case GL_TEXTURE_COLOR_TABLE_SGI
:
744 CHECK_EXTENSION(SGI_texture_color_table
, cap
);
745 if (ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
== state
)
747 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
748 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
= state
;
751 /* GL_EXT_convolution */
752 case GL_CONVOLUTION_1D
:
753 CHECK_EXTENSION(EXT_convolution
, cap
);
754 if (ctx
->Pixel
.Convolution1DEnabled
== state
)
756 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
757 ctx
->Pixel
.Convolution1DEnabled
= state
;
759 case GL_CONVOLUTION_2D
:
760 CHECK_EXTENSION(EXT_convolution
, cap
);
761 if (ctx
->Pixel
.Convolution2DEnabled
== state
)
763 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
764 ctx
->Pixel
.Convolution2DEnabled
= state
;
766 case GL_SEPARABLE_2D
:
767 CHECK_EXTENSION(EXT_convolution
, cap
);
768 if (ctx
->Pixel
.Separable2DEnabled
== state
)
770 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
771 ctx
->Pixel
.Separable2DEnabled
= state
;
774 /* GL_ARB_texture_cube_map */
775 case GL_TEXTURE_CUBE_MAP_ARB
:
777 const GLuint curr
= ctx
->Texture
.CurrentUnit
;
778 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[curr
];
779 GLuint newenabled
= texUnit
->Enabled
& ~TEXTURE_CUBE_BIT
;
780 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
782 newenabled
|= TEXTURE_CUBE_BIT
;
783 if (!ctx
->Visual
.rgbMode
|| texUnit
->Enabled
== newenabled
)
785 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
786 texUnit
->Enabled
= newenabled
;
790 /* GL_EXT_secondary_color */
791 case GL_COLOR_SUM_EXT
:
792 CHECK_EXTENSION(EXT_secondary_color
, cap
);
793 if (ctx
->Fog
.ColorSumEnabled
== state
)
795 FLUSH_VERTICES(ctx
, _NEW_FOG
);
796 ctx
->Fog
.ColorSumEnabled
= state
;
799 /* GL_ARB_multisample */
800 case GL_MULTISAMPLE_ARB
:
801 CHECK_EXTENSION(ARB_multisample
, cap
);
802 if (ctx
->Multisample
.Enabled
== state
)
804 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
805 ctx
->Multisample
.Enabled
= state
;
807 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
808 CHECK_EXTENSION(ARB_multisample
, cap
);
809 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
811 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
812 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
814 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
815 CHECK_EXTENSION(ARB_multisample
, cap
);
816 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
818 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
819 ctx
->Multisample
.SampleAlphaToOne
= state
;
821 case GL_SAMPLE_COVERAGE_ARB
:
822 CHECK_EXTENSION(ARB_multisample
, cap
);
823 if (ctx
->Multisample
.SampleCoverage
== state
)
825 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
826 ctx
->Multisample
.SampleCoverage
= state
;
828 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
829 CHECK_EXTENSION(ARB_multisample
, cap
);
830 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
832 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
833 ctx
->Multisample
.SampleCoverageInvert
= state
;
836 /* GL_IBM_rasterpos_clip */
837 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
838 CHECK_EXTENSION(IBM_rasterpos_clip
, cap
);
839 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
841 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
842 ctx
->Transform
.RasterPositionUnclipped
= state
;
845 /* GL_NV_point_sprite */
846 case GL_POINT_SPRITE_NV
:
847 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
848 if (ctx
->Point
.PointSprite
== state
)
850 FLUSH_VERTICES(ctx
, _NEW_POINT
);
851 ctx
->Point
.PointSprite
= state
;
854 #if FEATURE_NV_vertex_program
855 case GL_VERTEX_PROGRAM_NV
:
856 CHECK_EXTENSION2(NV_vertex_program
, ARB_vertex_program
, cap
);
857 if (ctx
->VertexProgram
.Enabled
== state
)
859 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
860 ctx
->VertexProgram
.Enabled
= state
;
862 case GL_VERTEX_PROGRAM_POINT_SIZE_NV
:
863 CHECK_EXTENSION2(NV_vertex_program
, ARB_vertex_program
, cap
);
864 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
866 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
867 ctx
->VertexProgram
.PointSizeEnabled
= state
;
869 case GL_VERTEX_PROGRAM_TWO_SIDE_NV
:
870 CHECK_EXTENSION2(NV_vertex_program
, ARB_vertex_program
, cap
);
871 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
873 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
874 ctx
->VertexProgram
.TwoSideEnabled
= state
;
876 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
877 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
878 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
879 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
880 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
881 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
882 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
883 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
884 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
885 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
886 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
887 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
888 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
889 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
890 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
891 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
892 CHECK_EXTENSION(NV_vertex_program
, cap
);
894 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
895 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
896 ctx
->Eval
.Map1Attrib
[map
] = state
;
899 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
900 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
901 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
902 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
903 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
904 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
905 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
906 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
907 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
908 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
909 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
910 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
911 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
912 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
913 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
914 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
915 CHECK_EXTENSION(NV_vertex_program
, cap
);
917 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
918 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
919 ctx
->Eval
.Map2Attrib
[map
] = state
;
922 #endif /* FEATURE_NV_vertex_program */
924 #if FEATURE_NV_fragment_program
925 case GL_FRAGMENT_PROGRAM_NV
:
926 CHECK_EXTENSION(NV_fragment_program
, cap
);
927 if (ctx
->FragmentProgram
.Enabled
== state
)
929 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
930 ctx
->FragmentProgram
.Enabled
= state
;
932 #endif /* FEATURE_NV_fragment_program */
934 /* GL_NV_texture_rectangle */
935 case GL_TEXTURE_RECTANGLE_NV
:
936 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
938 const GLuint curr
= ctx
->Texture
.CurrentUnit
;
939 struct gl_texture_unit
*texUnit
= &ctx
->Texture
.Unit
[curr
];
940 GLuint newenabled
= texUnit
->Enabled
& ~TEXTURE_RECT_BIT
;
941 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
943 newenabled
|= TEXTURE_RECT_BIT
;
944 if (!ctx
->Visual
.rgbMode
|| texUnit
->Enabled
== newenabled
)
946 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
947 texUnit
->Enabled
= newenabled
;
951 /* GL_EXT_stencil_two_side */
952 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
953 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
954 if (ctx
->Stencil
.TestTwoSide
== state
)
956 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
957 ctx
->Stencil
.TestTwoSide
= state
;
960 #if FEATURE_ARB_fragment_program
961 case GL_FRAGMENT_PROGRAM_ARB
:
962 CHECK_EXTENSION(ARB_fragment_program
, cap
);
963 if (ctx
->FragmentProgram
.Enabled
== state
)
965 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
966 ctx
->FragmentProgram
.Enabled
= state
;
968 #endif /* FEATURE_ARB_fragment_program */
970 /* GL_EXT_depth_bounds_test */
971 case GL_DEPTH_BOUNDS_TEST_EXT
:
972 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
973 if (state
&& ctx
->Visual
.depthBits
==0) {
975 "glEnable(GL_DEPTH_BOUNDS_TEST_EXT) but no depth buffer");
978 if (ctx
->Depth
.BoundsTest
== state
)
980 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
981 ctx
->Depth
.BoundsTest
= state
;
984 /* GL_MESA_program_debug */
985 case GL_FRAGMENT_PROGRAM_CALLBACK_MESA
:
986 CHECK_EXTENSION(MESA_program_debug
, cap
);
987 ctx
->FragmentProgram
.CallbackEnabled
= state
;
989 case GL_VERTEX_PROGRAM_CALLBACK_MESA
:
990 CHECK_EXTENSION(MESA_program_debug
, cap
);
991 ctx
->VertexProgram
.CallbackEnabled
= state
;
995 _mesa_error(ctx
, GL_INVALID_ENUM
,
996 "%s(0x%x)", state
? "glEnable" : "glDisable", cap
);
1000 if (ctx
->Driver
.Enable
) {
1001 (*ctx
->Driver
.Enable
)( ctx
, cap
, state
);
1007 * Enable GL capability.
1009 * \param cap capability.
1013 * Get's the current context, assures that we're outside glBegin()/glEnd() and
1014 * calls _mesa_set_enable().
1017 _mesa_Enable( GLenum cap
)
1019 GET_CURRENT_CONTEXT(ctx
);
1020 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1022 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
1027 * Disable GL capability.
1029 * \param cap capability.
1033 * Get's the current context, assures that we're outside glBegin()/glEnd() and
1034 * calls _mesa_set_enable().
1037 _mesa_Disable( GLenum cap
)
1039 GET_CURRENT_CONTEXT(ctx
);
1040 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1042 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
1046 #undef CHECK_EXTENSION
1047 #define CHECK_EXTENSION(EXTNAME) \
1048 if (!ctx->Extensions.EXTNAME) { \
1049 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1055 * Test whether a capability is enabled.
1057 * \param cap capability.
1059 * Returns the state of the specified capability from the current GL context.
1060 * For the capabilities associated with extensions verifies that those
1061 * extensions are effectively present before reporting.
1063 GLboolean GLAPIENTRY
1064 _mesa_IsEnabled( GLenum cap
)
1066 GET_CURRENT_CONTEXT(ctx
);
1069 return ctx
->Color
.AlphaEnabled
;
1070 case GL_AUTO_NORMAL
:
1071 return ctx
->Eval
.AutoNormal
;
1073 return ctx
->Color
.BlendEnabled
;
1074 case GL_CLIP_PLANE0
:
1075 case GL_CLIP_PLANE1
:
1076 case GL_CLIP_PLANE2
:
1077 case GL_CLIP_PLANE3
:
1078 case GL_CLIP_PLANE4
:
1079 case GL_CLIP_PLANE5
:
1080 return (ctx
->Transform
.ClipPlanesEnabled
>> (cap
- GL_CLIP_PLANE0
)) & 1;
1081 case GL_COLOR_MATERIAL
:
1082 return ctx
->Light
.ColorMaterialEnabled
;
1084 return ctx
->Polygon
.CullFlag
;
1086 return ctx
->Depth
.Test
;
1088 return ctx
->Color
.DitherFlag
;
1090 return ctx
->Fog
.Enabled
;
1092 return ctx
->Light
.Enabled
;
1101 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1102 case GL_LINE_SMOOTH
:
1103 return ctx
->Line
.SmoothFlag
;
1104 case GL_LINE_STIPPLE
:
1105 return ctx
->Line
.StippleFlag
;
1106 case GL_INDEX_LOGIC_OP
:
1107 return ctx
->Color
.IndexLogicOpEnabled
;
1108 case GL_COLOR_LOGIC_OP
:
1109 return ctx
->Color
.ColorLogicOpEnabled
;
1110 case GL_MAP1_COLOR_4
:
1111 return ctx
->Eval
.Map1Color4
;
1113 return ctx
->Eval
.Map1Index
;
1114 case GL_MAP1_NORMAL
:
1115 return ctx
->Eval
.Map1Normal
;
1116 case GL_MAP1_TEXTURE_COORD_1
:
1117 return ctx
->Eval
.Map1TextureCoord1
;
1118 case GL_MAP1_TEXTURE_COORD_2
:
1119 return ctx
->Eval
.Map1TextureCoord2
;
1120 case GL_MAP1_TEXTURE_COORD_3
:
1121 return ctx
->Eval
.Map1TextureCoord3
;
1122 case GL_MAP1_TEXTURE_COORD_4
:
1123 return ctx
->Eval
.Map1TextureCoord4
;
1124 case GL_MAP1_VERTEX_3
:
1125 return ctx
->Eval
.Map1Vertex3
;
1126 case GL_MAP1_VERTEX_4
:
1127 return ctx
->Eval
.Map1Vertex4
;
1128 case GL_MAP2_COLOR_4
:
1129 return ctx
->Eval
.Map2Color4
;
1131 return ctx
->Eval
.Map2Index
;
1132 case GL_MAP2_NORMAL
:
1133 return ctx
->Eval
.Map2Normal
;
1134 case GL_MAP2_TEXTURE_COORD_1
:
1135 return ctx
->Eval
.Map2TextureCoord1
;
1136 case GL_MAP2_TEXTURE_COORD_2
:
1137 return ctx
->Eval
.Map2TextureCoord2
;
1138 case GL_MAP2_TEXTURE_COORD_3
:
1139 return ctx
->Eval
.Map2TextureCoord3
;
1140 case GL_MAP2_TEXTURE_COORD_4
:
1141 return ctx
->Eval
.Map2TextureCoord4
;
1142 case GL_MAP2_VERTEX_3
:
1143 return ctx
->Eval
.Map2Vertex3
;
1144 case GL_MAP2_VERTEX_4
:
1145 return ctx
->Eval
.Map2Vertex4
;
1147 return ctx
->Transform
.Normalize
;
1148 case GL_POINT_SMOOTH
:
1149 return ctx
->Point
.SmoothFlag
;
1150 case GL_POLYGON_SMOOTH
:
1151 return ctx
->Polygon
.SmoothFlag
;
1152 case GL_POLYGON_STIPPLE
:
1153 return ctx
->Polygon
.StippleFlag
;
1154 case GL_POLYGON_OFFSET_POINT
:
1155 return ctx
->Polygon
.OffsetPoint
;
1156 case GL_POLYGON_OFFSET_LINE
:
1157 return ctx
->Polygon
.OffsetLine
;
1158 case GL_POLYGON_OFFSET_FILL
:
1159 /*case GL_POLYGON_OFFSET_EXT:*/
1160 return ctx
->Polygon
.OffsetFill
;
1161 case GL_RESCALE_NORMAL_EXT
:
1162 return ctx
->Transform
.RescaleNormals
;
1163 case GL_SCISSOR_TEST
:
1164 return ctx
->Scissor
.Enabled
;
1165 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1166 return ctx
->Texture
.SharedPalette
;
1167 case GL_STENCIL_TEST
:
1168 return ctx
->Stencil
.Enabled
;
1171 const struct gl_texture_unit
*texUnit
;
1172 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1173 return (texUnit
->Enabled
& TEXTURE_1D_BIT
) ? GL_TRUE
: GL_FALSE
;
1177 const struct gl_texture_unit
*texUnit
;
1178 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1179 return (texUnit
->Enabled
& TEXTURE_2D_BIT
) ? GL_TRUE
: GL_FALSE
;
1183 const struct gl_texture_unit
*texUnit
;
1184 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1185 return (texUnit
->Enabled
& TEXTURE_3D_BIT
) ? GL_TRUE
: GL_FALSE
;
1187 case GL_TEXTURE_GEN_Q
:
1189 const struct gl_texture_unit
*texUnit
;
1190 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1191 return (texUnit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
;
1193 case GL_TEXTURE_GEN_R
:
1195 const struct gl_texture_unit
*texUnit
;
1196 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1197 return (texUnit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
;
1199 case GL_TEXTURE_GEN_S
:
1201 const struct gl_texture_unit
*texUnit
;
1202 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1203 return (texUnit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
;
1205 case GL_TEXTURE_GEN_T
:
1207 const struct gl_texture_unit
*texUnit
;
1208 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1209 return (texUnit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
;
1215 case GL_VERTEX_ARRAY
:
1216 return (ctx
->Array
.Vertex
.Enabled
!= 0);
1217 case GL_NORMAL_ARRAY
:
1218 return (ctx
->Array
.Normal
.Enabled
!= 0);
1219 case GL_COLOR_ARRAY
:
1220 return (ctx
->Array
.Color
.Enabled
!= 0);
1221 case GL_INDEX_ARRAY
:
1222 return (ctx
->Array
.Index
.Enabled
!= 0);
1223 case GL_TEXTURE_COORD_ARRAY
:
1224 return (ctx
->Array
.TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
!= 0);
1225 case GL_EDGE_FLAG_ARRAY
:
1226 return (ctx
->Array
.EdgeFlag
.Enabled
!= 0);
1227 case GL_FOG_COORDINATE_ARRAY_EXT
:
1228 CHECK_EXTENSION(EXT_fog_coord
);
1229 return (ctx
->Array
.FogCoord
.Enabled
!= 0);
1230 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1231 CHECK_EXTENSION(EXT_secondary_color
);
1232 return (ctx
->Array
.SecondaryColor
.Enabled
!= 0);
1234 /* GL_EXT_histogram */
1236 CHECK_EXTENSION(EXT_histogram
);
1237 return ctx
->Pixel
.HistogramEnabled
;
1239 CHECK_EXTENSION(EXT_histogram
);
1240 return ctx
->Pixel
.MinMaxEnabled
;
1242 /* GL_HP_occlusion_test */
1243 case GL_OCCLUSION_TEST_HP
:
1244 CHECK_EXTENSION(HP_occlusion_test
);
1245 return ctx
->Depth
.OcclusionTest
;
1247 /* GL_SGIS_pixel_texture */
1248 case GL_PIXEL_TEXTURE_SGIS
:
1249 CHECK_EXTENSION(SGIS_pixel_texture
);
1250 return ctx
->Pixel
.PixelTextureEnabled
;
1252 /* GL_SGIX_pixel_texture */
1253 case GL_PIXEL_TEX_GEN_SGIX
:
1254 CHECK_EXTENSION(SGIX_pixel_texture
);
1255 return ctx
->Pixel
.PixelTextureEnabled
;
1257 /* GL_SGI_color_table */
1258 case GL_COLOR_TABLE_SGI
:
1259 CHECK_EXTENSION(SGI_color_table
);
1260 return ctx
->Pixel
.ColorTableEnabled
;
1261 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
1262 CHECK_EXTENSION(SGI_color_table
);
1263 return ctx
->Pixel
.PostConvolutionColorTableEnabled
;
1264 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
1265 CHECK_EXTENSION(SGI_color_table
);
1266 return ctx
->Pixel
.PostColorMatrixColorTableEnabled
;
1268 /* GL_SGI_texture_color_table */
1269 case GL_TEXTURE_COLOR_TABLE_SGI
:
1270 CHECK_EXTENSION(SGI_texture_color_table
);
1271 return ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
;
1273 /* GL_EXT_convolution */
1274 case GL_CONVOLUTION_1D
:
1275 CHECK_EXTENSION(EXT_convolution
);
1276 return ctx
->Pixel
.Convolution1DEnabled
;
1277 case GL_CONVOLUTION_2D
:
1278 CHECK_EXTENSION(EXT_convolution
);
1279 return ctx
->Pixel
.Convolution2DEnabled
;
1280 case GL_SEPARABLE_2D
:
1281 CHECK_EXTENSION(EXT_convolution
);
1282 return ctx
->Pixel
.Separable2DEnabled
;
1284 /* GL_ARB_texture_cube_map */
1285 case GL_TEXTURE_CUBE_MAP_ARB
:
1286 CHECK_EXTENSION(ARB_texture_cube_map
);
1288 const struct gl_texture_unit
*texUnit
;
1289 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1290 return (texUnit
->Enabled
& TEXTURE_CUBE_BIT
) ? GL_TRUE
: GL_FALSE
;
1293 /* GL_ARB_multisample */
1294 case GL_MULTISAMPLE_ARB
:
1295 CHECK_EXTENSION(ARB_multisample
);
1296 return ctx
->Multisample
.Enabled
;
1297 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1298 CHECK_EXTENSION(ARB_multisample
);
1299 return ctx
->Multisample
.SampleAlphaToCoverage
;
1300 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1301 CHECK_EXTENSION(ARB_multisample
);
1302 return ctx
->Multisample
.SampleAlphaToOne
;
1303 case GL_SAMPLE_COVERAGE_ARB
:
1304 CHECK_EXTENSION(ARB_multisample
);
1305 return ctx
->Multisample
.SampleCoverage
;
1306 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1307 CHECK_EXTENSION(ARB_multisample
);
1308 return ctx
->Multisample
.SampleCoverageInvert
;
1310 /* GL_IBM_rasterpos_clip */
1311 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1312 CHECK_EXTENSION(IBM_rasterpos_clip
);
1313 return ctx
->Transform
.RasterPositionUnclipped
;
1315 /* GL_NV_point_sprite */
1316 case GL_POINT_SPRITE_NV
:
1317 return ctx
->Point
.PointSprite
;
1319 #if FEATURE_NV_vertex_program
1320 case GL_VERTEX_PROGRAM_NV
:
1321 CHECK_EXTENSION(NV_vertex_program
);
1322 return ctx
->VertexProgram
.Enabled
;
1323 case GL_VERTEX_PROGRAM_POINT_SIZE_NV
:
1324 CHECK_EXTENSION(NV_vertex_program
);
1325 return ctx
->VertexProgram
.PointSizeEnabled
;
1326 case GL_VERTEX_PROGRAM_TWO_SIDE_NV
:
1327 CHECK_EXTENSION(NV_vertex_program
);
1328 return ctx
->VertexProgram
.TwoSideEnabled
;
1329 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
1330 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
1331 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
1332 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
1333 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
1334 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
1335 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
1336 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
1337 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
1338 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
1339 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
1340 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
1341 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
1342 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
1343 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
1344 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
1345 CHECK_EXTENSION(NV_vertex_program
);
1347 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
1348 return (ctx
->Array
.VertexAttrib
[n
].Enabled
!= 0);
1350 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
1351 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
1352 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
1353 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
1354 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
1355 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
1356 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
1357 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
1358 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
1359 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
1360 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
1361 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
1362 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
1363 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
1364 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
1365 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
1366 CHECK_EXTENSION(NV_vertex_program
);
1368 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
1369 return ctx
->Eval
.Map1Attrib
[map
];
1371 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
1372 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
1373 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
1374 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
1375 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
1376 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
1377 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
1378 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
1379 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
1380 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
1381 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
1382 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
1383 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
1384 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
1385 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
1386 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
1387 CHECK_EXTENSION(NV_vertex_program
);
1389 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
1390 return ctx
->Eval
.Map2Attrib
[map
];
1392 #endif /* FEATURE_NV_vertex_program */
1394 #if FEATURE_NV_fragment_program
1395 case GL_FRAGMENT_PROGRAM_NV
:
1396 CHECK_EXTENSION(NV_fragment_program
);
1397 return ctx
->FragmentProgram
.Enabled
;
1398 #endif /* FEATURE_NV_fragment_program */
1400 /* GL_NV_texture_rectangle */
1401 case GL_TEXTURE_RECTANGLE_NV
:
1402 CHECK_EXTENSION(NV_texture_rectangle
);
1404 const struct gl_texture_unit
*texUnit
;
1405 texUnit
= &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1406 return (texUnit
->Enabled
& TEXTURE_RECT_BIT
) ? GL_TRUE
: GL_FALSE
;
1409 /* GL_EXT_stencil_two_side */
1410 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1411 CHECK_EXTENSION(EXT_stencil_two_side
);
1412 return ctx
->Stencil
.TestTwoSide
;
1414 #if FEATURE_ARB_fragment_program
1415 case GL_FRAGMENT_PROGRAM_ARB
:
1416 return ctx
->FragmentProgram
.Enabled
;
1417 #endif /* FEATURE_ARB_fragment_program */
1419 /* GL_EXT_depth_bounds_test */
1420 case GL_DEPTH_BOUNDS_TEST_EXT
:
1421 CHECK_EXTENSION(EXT_depth_bounds_test
);
1422 return ctx
->Depth
.BoundsTest
;
1424 /* GL_MESA_program_debug */
1425 case GL_FRAGMENT_PROGRAM_CALLBACK_MESA
:
1426 CHECK_EXTENSION(MESA_program_debug
);
1427 return ctx
->FragmentProgram
.CallbackEnabled
;
1428 case GL_VERTEX_PROGRAM_CALLBACK_MESA
:
1429 CHECK_EXTENSION(MESA_program_debug
);
1430 return ctx
->VertexProgram
.CallbackEnabled
;
1433 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(0x%x)", (int) cap
);