3 * Enable/disable/query GL capabilities.
7 * Mesa 3-D graphics library
9 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
25 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
26 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
35 #include "simple_list.h"
36 #include "mfeatures.h"
39 #include "api_arrayelt.h"
44 #define CHECK_EXTENSION(EXTNAME, CAP) \
45 if (!ctx->Extensions.EXTNAME) { \
46 goto invalid_enum_error; \
51 * Helper to enable/disable client-side state.
54 client_state(struct gl_context
*ctx
, GLenum cap
, GLboolean state
)
56 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
62 var
= &arrayObj
->Vertex
.Enabled
;
63 flag
= _NEW_ARRAY_VERTEX
;
66 var
= &arrayObj
->Normal
.Enabled
;
67 flag
= _NEW_ARRAY_NORMAL
;
70 var
= &arrayObj
->Color
.Enabled
;
71 flag
= _NEW_ARRAY_COLOR0
;
74 var
= &arrayObj
->Index
.Enabled
;
75 flag
= _NEW_ARRAY_INDEX
;
77 case GL_TEXTURE_COORD_ARRAY
:
78 var
= &arrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
;
79 flag
= _NEW_ARRAY_TEXCOORD(ctx
->Array
.ActiveTexture
);
81 case GL_EDGE_FLAG_ARRAY
:
82 var
= &arrayObj
->EdgeFlag
.Enabled
;
83 flag
= _NEW_ARRAY_EDGEFLAG
;
85 case GL_FOG_COORDINATE_ARRAY_EXT
:
86 var
= &arrayObj
->FogCoord
.Enabled
;
87 flag
= _NEW_ARRAY_FOGCOORD
;
89 case GL_SECONDARY_COLOR_ARRAY_EXT
:
90 var
= &arrayObj
->SecondaryColor
.Enabled
;
91 flag
= _NEW_ARRAY_COLOR1
;
94 #if FEATURE_point_size_array
95 case GL_POINT_SIZE_ARRAY_OES
:
96 var
= &arrayObj
->PointSize
.Enabled
;
97 flag
= _NEW_ARRAY_POINT_SIZE
;
101 #if FEATURE_NV_vertex_program
102 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
103 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
104 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
105 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
106 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
107 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
108 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
109 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
110 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
111 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
112 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
113 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
114 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
115 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
116 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
117 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
118 CHECK_EXTENSION(NV_vertex_program
, cap
);
120 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
121 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
122 var
= &arrayObj
->VertexAttrib
[n
].Enabled
;
123 flag
= _NEW_ARRAY_ATTRIB(n
);
126 #endif /* FEATURE_NV_vertex_program */
128 /* GL_NV_primitive_restart */
129 case GL_PRIMITIVE_RESTART_NV
:
130 if (!ctx
->Extensions
.NV_primitive_restart
) {
131 goto invalid_enum_error
;
133 var
= &ctx
->Array
.PrimitiveRestart
;
138 goto invalid_enum_error
;
144 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
145 ctx
->Array
.NewState
|= flag
;
147 _ae_invalidate_state(ctx
, _NEW_ARRAY
);
152 ctx
->Array
.ArrayObj
->_Enabled
|= flag
;
154 ctx
->Array
.ArrayObj
->_Enabled
&= ~flag
;
156 if (ctx
->Driver
.Enable
) {
157 ctx
->Driver
.Enable( ctx
, cap
, state
);
163 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%sClientState(0x%x)",
164 state
? "Enable" : "Disable", cap
);
169 * Enable GL capability.
170 * \param cap state to enable/disable.
172 * Get's the current context, assures that we're outside glBegin()/glEnd() and
173 * calls client_state().
176 _mesa_EnableClientState( GLenum cap
)
178 GET_CURRENT_CONTEXT(ctx
);
179 ASSERT_OUTSIDE_BEGIN_END(ctx
);
180 client_state( ctx
, cap
, GL_TRUE
);
185 * Disable GL capability.
186 * \param cap state to enable/disable.
188 * Get's the current context, assures that we're outside glBegin()/glEnd() and
189 * calls client_state().
192 _mesa_DisableClientState( GLenum cap
)
194 GET_CURRENT_CONTEXT(ctx
);
195 ASSERT_OUTSIDE_BEGIN_END(ctx
);
196 client_state( ctx
, cap
, GL_FALSE
);
200 #undef CHECK_EXTENSION
201 #define CHECK_EXTENSION(EXTNAME, CAP) \
202 if (!ctx->Extensions.EXTNAME) { \
203 goto invalid_enum_error; \
206 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
207 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
208 goto invalid_enum_error; \
214 * Return pointer to current texture unit for setting/getting coordinate
216 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active
217 * texture unit is higher than the number of supported coordinate units.
219 static struct gl_texture_unit
*
220 get_texcoord_unit(struct gl_context
*ctx
)
222 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
223 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnable/Disable(texcoord unit)");
227 return &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
233 * Helper function to enable or disable a texture target.
234 * \param bit one of the TEXTURE_x_BIT values
235 * \return GL_TRUE if state is changing or GL_FALSE if no change
238 enable_texture(struct gl_context
*ctx
, GLboolean state
, GLbitfield texBit
)
240 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
241 const GLbitfield newenabled
= state
242 ? (texUnit
->Enabled
| texBit
) : (texUnit
->Enabled
& ~texBit
);
244 if (texUnit
->Enabled
== newenabled
)
247 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
248 texUnit
->Enabled
= newenabled
;
254 * Helper function to enable or disable state.
256 * \param ctx GL context.
257 * \param cap the state to enable/disable
258 * \param state whether to enable or disable the specified capability.
260 * Updates the current context and flushes the vertices as needed. For
261 * capabilities associated with extensions it verifies that those extensions
262 * are effectivly present before updating. Notifies the driver via
263 * dd_function_table::Enable.
266 _mesa_set_enable(struct gl_context
*ctx
, GLenum cap
, GLboolean state
)
268 if (MESA_VERBOSE
& VERBOSE_API
)
269 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
270 state
? "glEnable" : "glDisable",
271 _mesa_lookup_enum_by_nr(cap
),
276 if (ctx
->Color
.AlphaEnabled
== state
)
278 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
279 ctx
->Color
.AlphaEnabled
= state
;
282 if (ctx
->Eval
.AutoNormal
== state
)
284 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
285 ctx
->Eval
.AutoNormal
= state
;
289 GLbitfield newEnabled
=
290 state
* ((1 << ctx
->Const
.MaxDrawBuffers
) - 1);
291 if (newEnabled
!= ctx
->Color
.BlendEnabled
) {
292 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
293 ctx
->Color
.BlendEnabled
= newEnabled
;
305 const GLuint p
= cap
- GL_CLIP_PLANE0
;
307 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
))
308 == ((GLuint
) state
<< p
))
311 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
314 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
315 _mesa_update_clip_plane(ctx
, p
);
318 ctx
->Transform
.ClipPlanesEnabled
&= ~(1 << p
);
323 case GL_COLOR_MATERIAL
:
324 if (ctx
->Light
.ColorMaterialEnabled
== state
)
326 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
327 FLUSH_CURRENT(ctx
, 0);
328 ctx
->Light
.ColorMaterialEnabled
= state
;
330 _mesa_update_color_material( ctx
,
331 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
335 if (ctx
->Polygon
.CullFlag
== state
)
337 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
338 ctx
->Polygon
.CullFlag
= state
;
341 if (ctx
->Depth
.Test
== state
)
343 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
344 ctx
->Depth
.Test
= state
;
347 if (ctx
->Color
.DitherFlag
== state
)
349 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
350 ctx
->Color
.DitherFlag
= state
;
353 if (ctx
->Fog
.Enabled
== state
)
355 FLUSH_VERTICES(ctx
, _NEW_FOG
);
356 ctx
->Fog
.Enabled
= state
;
366 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
368 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
369 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
371 insert_at_tail(&ctx
->Light
.EnabledList
,
372 &ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
375 remove_from_list(&ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
379 if (ctx
->Light
.Enabled
== state
)
381 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
382 ctx
->Light
.Enabled
= state
;
383 if (ctx
->Light
.Enabled
&& ctx
->Light
.Model
.TwoSide
)
384 ctx
->_TriangleCaps
|= DD_TRI_LIGHT_TWOSIDE
;
386 ctx
->_TriangleCaps
&= ~DD_TRI_LIGHT_TWOSIDE
;
389 if (ctx
->Line
.SmoothFlag
== state
)
391 FLUSH_VERTICES(ctx
, _NEW_LINE
);
392 ctx
->Line
.SmoothFlag
= state
;
393 ctx
->_TriangleCaps
^= DD_LINE_SMOOTH
;
395 case GL_LINE_STIPPLE
:
396 if (ctx
->Line
.StippleFlag
== state
)
398 FLUSH_VERTICES(ctx
, _NEW_LINE
);
399 ctx
->Line
.StippleFlag
= state
;
400 ctx
->_TriangleCaps
^= DD_LINE_STIPPLE
;
402 case GL_INDEX_LOGIC_OP
:
403 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
405 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
406 ctx
->Color
.IndexLogicOpEnabled
= state
;
408 case GL_COLOR_LOGIC_OP
:
409 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
411 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
412 ctx
->Color
.ColorLogicOpEnabled
= state
;
414 case GL_MAP1_COLOR_4
:
415 if (ctx
->Eval
.Map1Color4
== state
)
417 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
418 ctx
->Eval
.Map1Color4
= state
;
421 if (ctx
->Eval
.Map1Index
== state
)
423 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
424 ctx
->Eval
.Map1Index
= state
;
427 if (ctx
->Eval
.Map1Normal
== state
)
429 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
430 ctx
->Eval
.Map1Normal
= state
;
432 case GL_MAP1_TEXTURE_COORD_1
:
433 if (ctx
->Eval
.Map1TextureCoord1
== state
)
435 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
436 ctx
->Eval
.Map1TextureCoord1
= state
;
438 case GL_MAP1_TEXTURE_COORD_2
:
439 if (ctx
->Eval
.Map1TextureCoord2
== state
)
441 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
442 ctx
->Eval
.Map1TextureCoord2
= state
;
444 case GL_MAP1_TEXTURE_COORD_3
:
445 if (ctx
->Eval
.Map1TextureCoord3
== state
)
447 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
448 ctx
->Eval
.Map1TextureCoord3
= state
;
450 case GL_MAP1_TEXTURE_COORD_4
:
451 if (ctx
->Eval
.Map1TextureCoord4
== state
)
453 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
454 ctx
->Eval
.Map1TextureCoord4
= state
;
456 case GL_MAP1_VERTEX_3
:
457 if (ctx
->Eval
.Map1Vertex3
== state
)
459 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
460 ctx
->Eval
.Map1Vertex3
= state
;
462 case GL_MAP1_VERTEX_4
:
463 if (ctx
->Eval
.Map1Vertex4
== state
)
465 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
466 ctx
->Eval
.Map1Vertex4
= state
;
468 case GL_MAP2_COLOR_4
:
469 if (ctx
->Eval
.Map2Color4
== state
)
471 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
472 ctx
->Eval
.Map2Color4
= state
;
475 if (ctx
->Eval
.Map2Index
== state
)
477 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
478 ctx
->Eval
.Map2Index
= state
;
481 if (ctx
->Eval
.Map2Normal
== state
)
483 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
484 ctx
->Eval
.Map2Normal
= state
;
486 case GL_MAP2_TEXTURE_COORD_1
:
487 if (ctx
->Eval
.Map2TextureCoord1
== state
)
489 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
490 ctx
->Eval
.Map2TextureCoord1
= state
;
492 case GL_MAP2_TEXTURE_COORD_2
:
493 if (ctx
->Eval
.Map2TextureCoord2
== state
)
495 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
496 ctx
->Eval
.Map2TextureCoord2
= state
;
498 case GL_MAP2_TEXTURE_COORD_3
:
499 if (ctx
->Eval
.Map2TextureCoord3
== state
)
501 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
502 ctx
->Eval
.Map2TextureCoord3
= state
;
504 case GL_MAP2_TEXTURE_COORD_4
:
505 if (ctx
->Eval
.Map2TextureCoord4
== state
)
507 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
508 ctx
->Eval
.Map2TextureCoord4
= state
;
510 case GL_MAP2_VERTEX_3
:
511 if (ctx
->Eval
.Map2Vertex3
== state
)
513 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
514 ctx
->Eval
.Map2Vertex3
= state
;
516 case GL_MAP2_VERTEX_4
:
517 if (ctx
->Eval
.Map2Vertex4
== state
)
519 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
520 ctx
->Eval
.Map2Vertex4
= state
;
523 if (ctx
->Transform
.Normalize
== state
)
525 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
526 ctx
->Transform
.Normalize
= state
;
528 case GL_POINT_SMOOTH
:
529 if (ctx
->Point
.SmoothFlag
== state
)
531 FLUSH_VERTICES(ctx
, _NEW_POINT
);
532 ctx
->Point
.SmoothFlag
= state
;
533 ctx
->_TriangleCaps
^= DD_POINT_SMOOTH
;
535 case GL_POLYGON_SMOOTH
:
536 if (ctx
->Polygon
.SmoothFlag
== state
)
538 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
539 ctx
->Polygon
.SmoothFlag
= state
;
540 ctx
->_TriangleCaps
^= DD_TRI_SMOOTH
;
542 case GL_POLYGON_STIPPLE
:
543 if (ctx
->Polygon
.StippleFlag
== state
)
545 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
546 ctx
->Polygon
.StippleFlag
= state
;
547 ctx
->_TriangleCaps
^= DD_TRI_STIPPLE
;
549 case GL_POLYGON_OFFSET_POINT
:
550 if (ctx
->Polygon
.OffsetPoint
== state
)
552 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
553 ctx
->Polygon
.OffsetPoint
= state
;
555 case GL_POLYGON_OFFSET_LINE
:
556 if (ctx
->Polygon
.OffsetLine
== state
)
558 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
559 ctx
->Polygon
.OffsetLine
= state
;
561 case GL_POLYGON_OFFSET_FILL
:
562 if (ctx
->Polygon
.OffsetFill
== state
)
564 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
565 ctx
->Polygon
.OffsetFill
= state
;
567 case GL_RESCALE_NORMAL_EXT
:
568 if (ctx
->Transform
.RescaleNormals
== state
)
570 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
571 ctx
->Transform
.RescaleNormals
= state
;
573 case GL_SCISSOR_TEST
:
574 if (ctx
->Scissor
.Enabled
== state
)
576 FLUSH_VERTICES(ctx
, _NEW_SCISSOR
);
577 ctx
->Scissor
.Enabled
= state
;
579 case GL_SHARED_TEXTURE_PALETTE_EXT
:
580 if (ctx
->Texture
.SharedPalette
== state
)
582 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
583 ctx
->Texture
.SharedPalette
= state
;
585 case GL_STENCIL_TEST
:
586 if (ctx
->Stencil
.Enabled
== state
)
588 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
589 ctx
->Stencil
.Enabled
= state
;
592 if (!enable_texture(ctx
, state
, TEXTURE_1D_BIT
)) {
597 if (!enable_texture(ctx
, state
, TEXTURE_2D_BIT
)) {
602 if (!enable_texture(ctx
, state
, TEXTURE_3D_BIT
)) {
606 case GL_TEXTURE_GEN_S
:
607 case GL_TEXTURE_GEN_T
:
608 case GL_TEXTURE_GEN_R
:
609 case GL_TEXTURE_GEN_Q
:
611 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
613 GLbitfield coordBit
= S_BIT
<< (cap
- GL_TEXTURE_GEN_S
);
614 GLbitfield newenabled
= texUnit
->TexGenEnabled
& ~coordBit
;
616 newenabled
|= coordBit
;
617 if (texUnit
->TexGenEnabled
== newenabled
)
619 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
620 texUnit
->TexGenEnabled
= newenabled
;
626 case GL_TEXTURE_GEN_STR_OES
:
627 /* disable S, T, and R at the same time */
629 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
632 texUnit
->TexGenEnabled
& ~STR_BITS
;
634 newenabled
|= STR_BITS
;
635 if (texUnit
->TexGenEnabled
== newenabled
)
637 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
638 texUnit
->TexGenEnabled
= newenabled
;
644 /* client-side state */
645 case GL_VERTEX_ARRAY
:
646 case GL_NORMAL_ARRAY
:
649 case GL_TEXTURE_COORD_ARRAY
:
650 case GL_EDGE_FLAG_ARRAY
:
651 case GL_FOG_COORDINATE_ARRAY_EXT
:
652 case GL_SECONDARY_COLOR_ARRAY_EXT
:
653 case GL_POINT_SIZE_ARRAY_OES
:
654 client_state( ctx
, cap
, state
);
657 /* GL_ARB_texture_cube_map */
658 case GL_TEXTURE_CUBE_MAP_ARB
:
659 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
660 if (!enable_texture(ctx
, state
, TEXTURE_CUBE_BIT
)) {
665 /* GL_EXT_secondary_color */
666 case GL_COLOR_SUM_EXT
:
667 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
, cap
);
668 if (ctx
->Fog
.ColorSumEnabled
== state
)
670 FLUSH_VERTICES(ctx
, _NEW_FOG
);
671 ctx
->Fog
.ColorSumEnabled
= state
;
674 /* GL_ARB_multisample */
675 case GL_MULTISAMPLE_ARB
:
676 if (ctx
->Multisample
.Enabled
== state
)
678 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
679 ctx
->Multisample
.Enabled
= state
;
681 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
682 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
684 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
685 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
687 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
688 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
690 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
691 ctx
->Multisample
.SampleAlphaToOne
= state
;
693 case GL_SAMPLE_COVERAGE_ARB
:
694 if (ctx
->Multisample
.SampleCoverage
== state
)
696 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
697 ctx
->Multisample
.SampleCoverage
= state
;
699 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
700 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
702 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
703 ctx
->Multisample
.SampleCoverageInvert
= state
;
706 /* GL_IBM_rasterpos_clip */
707 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
708 CHECK_EXTENSION(IBM_rasterpos_clip
, cap
);
709 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
711 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
712 ctx
->Transform
.RasterPositionUnclipped
= state
;
715 /* GL_NV_point_sprite */
716 case GL_POINT_SPRITE_NV
:
717 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
718 if (ctx
->Point
.PointSprite
== state
)
720 FLUSH_VERTICES(ctx
, _NEW_POINT
);
721 ctx
->Point
.PointSprite
= state
;
724 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
725 case GL_VERTEX_PROGRAM_ARB
:
726 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
727 if (ctx
->VertexProgram
.Enabled
== state
)
729 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
730 ctx
->VertexProgram
.Enabled
= state
;
732 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
733 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
734 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
736 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
737 ctx
->VertexProgram
.PointSizeEnabled
= state
;
739 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
740 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
741 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
743 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
744 ctx
->VertexProgram
.TwoSideEnabled
= state
;
747 #if FEATURE_NV_vertex_program
748 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
749 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
750 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
751 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
752 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
753 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
754 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
755 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
756 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
757 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
758 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
759 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
760 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
761 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
762 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
763 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
764 CHECK_EXTENSION(NV_vertex_program
, cap
);
766 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
767 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
768 ctx
->Eval
.Map1Attrib
[map
] = state
;
771 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
772 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
773 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
774 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
775 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
776 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
777 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
778 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
779 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
780 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
781 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
782 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
783 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
784 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
785 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
786 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
787 CHECK_EXTENSION(NV_vertex_program
, cap
);
789 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
790 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
791 ctx
->Eval
.Map2Attrib
[map
] = state
;
794 #endif /* FEATURE_NV_vertex_program */
796 #if FEATURE_NV_fragment_program
797 case GL_FRAGMENT_PROGRAM_NV
:
798 CHECK_EXTENSION(NV_fragment_program
, cap
);
799 if (ctx
->FragmentProgram
.Enabled
== state
)
801 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
802 ctx
->FragmentProgram
.Enabled
= state
;
804 #endif /* FEATURE_NV_fragment_program */
806 /* GL_NV_texture_rectangle */
807 case GL_TEXTURE_RECTANGLE_NV
:
808 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
809 if (!enable_texture(ctx
, state
, TEXTURE_RECT_BIT
)) {
814 /* GL_EXT_stencil_two_side */
815 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
816 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
817 if (ctx
->Stencil
.TestTwoSide
== state
)
819 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
820 ctx
->Stencil
.TestTwoSide
= state
;
822 ctx
->Stencil
._BackFace
= 2;
823 ctx
->_TriangleCaps
|= DD_TRI_TWOSTENCIL
;
825 ctx
->Stencil
._BackFace
= 1;
826 ctx
->_TriangleCaps
&= ~DD_TRI_TWOSTENCIL
;
830 #if FEATURE_ARB_fragment_program
831 case GL_FRAGMENT_PROGRAM_ARB
:
832 CHECK_EXTENSION(ARB_fragment_program
, cap
);
833 if (ctx
->FragmentProgram
.Enabled
== state
)
835 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
836 ctx
->FragmentProgram
.Enabled
= state
;
838 #endif /* FEATURE_ARB_fragment_program */
840 /* GL_EXT_depth_bounds_test */
841 case GL_DEPTH_BOUNDS_TEST_EXT
:
842 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
843 if (ctx
->Depth
.BoundsTest
== state
)
845 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
846 ctx
->Depth
.BoundsTest
= state
;
850 if (ctx
->Transform
.DepthClamp
== state
)
852 CHECK_EXTENSION(ARB_depth_clamp
, cap
);
853 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
854 ctx
->Transform
.DepthClamp
= state
;
857 #if FEATURE_ATI_fragment_shader
858 case GL_FRAGMENT_SHADER_ATI
:
859 CHECK_EXTENSION(ATI_fragment_shader
, cap
);
860 if (ctx
->ATIFragmentShader
.Enabled
== state
)
862 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
863 ctx
->ATIFragmentShader
.Enabled
= state
;
867 /* GL_MESA_texture_array */
868 case GL_TEXTURE_1D_ARRAY_EXT
:
869 CHECK_EXTENSION(MESA_texture_array
, cap
);
870 if (!enable_texture(ctx
, state
, TEXTURE_1D_ARRAY_BIT
)) {
875 case GL_TEXTURE_2D_ARRAY_EXT
:
876 CHECK_EXTENSION(MESA_texture_array
, cap
);
877 if (!enable_texture(ctx
, state
, TEXTURE_2D_ARRAY_BIT
)) {
882 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
883 CHECK_EXTENSION(ARB_seamless_cube_map
, cap
);
884 if (ctx
->Texture
.CubeMapSeamless
!= state
) {
885 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
886 ctx
->Texture
.CubeMapSeamless
= state
;
890 #if FEATURE_EXT_transform_feedback
891 case GL_RASTERIZER_DISCARD
:
892 CHECK_EXTENSION(EXT_transform_feedback
, cap
);
893 if (ctx
->TransformFeedback
.RasterDiscard
!= state
) {
894 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
895 ctx
->TransformFeedback
.RasterDiscard
= state
;
900 /* GL 3.1 primitive restart. Note: this enum is different from
901 * GL_PRIMITIVE_RESTART_NV (which is client state).
903 case GL_PRIMITIVE_RESTART
:
904 if (ctx
->VersionMajor
* 10 + ctx
->VersionMinor
< 31) {
905 goto invalid_enum_error
;
907 if (ctx
->Array
.PrimitiveRestart
!= state
) {
908 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
909 ctx
->Array
.PrimitiveRestart
= state
;
913 /* GL3.0 - GL_framebuffer_sRGB */
914 case GL_FRAMEBUFFER_SRGB_EXT
:
915 CHECK_EXTENSION(EXT_framebuffer_sRGB
, cap
);
916 FLUSH_VERTICES(ctx
, _NEW_BUFFERS
);
917 ctx
->Color
.sRGBEnabled
= state
;
921 goto invalid_enum_error
;
924 if (ctx
->Driver
.Enable
) {
925 ctx
->Driver
.Enable( ctx
, cap
, state
);
931 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%s(0x%x)",
932 state
? "Enable" : "Disable", cap
);
937 * Enable GL capability. Called by glEnable()
938 * \param cap state to enable.
941 _mesa_Enable( GLenum cap
)
943 GET_CURRENT_CONTEXT(ctx
);
944 ASSERT_OUTSIDE_BEGIN_END(ctx
);
946 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
951 * Disable GL capability. Called by glDisable()
952 * \param cap state to disable.
955 _mesa_Disable( GLenum cap
)
957 GET_CURRENT_CONTEXT(ctx
);
958 ASSERT_OUTSIDE_BEGIN_END(ctx
);
960 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
966 * Enable/disable an indexed state var.
969 _mesa_set_enablei(struct gl_context
*ctx
, GLenum cap
,
970 GLuint index
, GLboolean state
)
972 ASSERT(state
== 0 || state
== 1);
975 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
976 goto invalid_enum_error
;
978 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
979 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
980 state
? "glEnableIndexed" : "glDisableIndexed", index
);
983 if (((ctx
->Color
.BlendEnabled
>> index
) & 1) != state
) {
984 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
986 ctx
->Color
.BlendEnabled
|= (1 << index
);
988 ctx
->Color
.BlendEnabled
&= ~(1 << index
);
992 goto invalid_enum_error
;
997 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(cap=%s)",
998 state
? "glEnablei" : "glDisablei",
999 _mesa_lookup_enum_by_nr(cap
));
1004 _mesa_DisableIndexed( GLenum cap
, GLuint index
)
1006 GET_CURRENT_CONTEXT(ctx
);
1007 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1008 _mesa_set_enablei(ctx
, cap
, index
, GL_FALSE
);
1013 _mesa_EnableIndexed( GLenum cap
, GLuint index
)
1015 GET_CURRENT_CONTEXT(ctx
);
1016 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1017 _mesa_set_enablei(ctx
, cap
, index
, GL_TRUE
);
1021 GLboolean GLAPIENTRY
1022 _mesa_IsEnabledIndexed( GLenum cap
, GLuint index
)
1024 GET_CURRENT_CONTEXT(ctx
);
1027 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1028 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1032 return (ctx
->Color
.BlendEnabled
>> index
) & 1;
1034 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabledIndexed(cap=%s)",
1035 _mesa_lookup_enum_by_nr(cap
));
1043 #undef CHECK_EXTENSION
1044 #define CHECK_EXTENSION(EXTNAME) \
1045 if (!ctx->Extensions.EXTNAME) { \
1046 goto invalid_enum_error; \
1049 #undef CHECK_EXTENSION2
1050 #define CHECK_EXTENSION2(EXT1, EXT2) \
1051 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1052 goto invalid_enum_error; \
1057 * Helper function to determine whether a texture target is enabled.
1060 is_texture_enabled(struct gl_context
*ctx
, GLbitfield bit
)
1062 const struct gl_texture_unit
*const texUnit
=
1063 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1064 return (texUnit
->Enabled
& bit
) ? GL_TRUE
: GL_FALSE
;
1069 * Return simple enable/disable state.
1071 * \param cap state variable to query.
1073 * Returns the state of the specified capability from the current GL context.
1074 * For the capabilities associated with extensions verifies that those
1075 * extensions are effectively present before reporting.
1077 GLboolean GLAPIENTRY
1078 _mesa_IsEnabled( GLenum cap
)
1080 GET_CURRENT_CONTEXT(ctx
);
1083 return ctx
->Color
.AlphaEnabled
;
1084 case GL_AUTO_NORMAL
:
1085 return ctx
->Eval
.AutoNormal
;
1087 return ctx
->Color
.BlendEnabled
& 1; /* return state for buffer[0] */
1088 case GL_CLIP_PLANE0
:
1089 case GL_CLIP_PLANE1
:
1090 case GL_CLIP_PLANE2
:
1091 case GL_CLIP_PLANE3
:
1092 case GL_CLIP_PLANE4
:
1093 case GL_CLIP_PLANE5
:
1094 return (ctx
->Transform
.ClipPlanesEnabled
>> (cap
- GL_CLIP_PLANE0
)) & 1;
1095 case GL_COLOR_MATERIAL
:
1096 return ctx
->Light
.ColorMaterialEnabled
;
1098 return ctx
->Polygon
.CullFlag
;
1100 return ctx
->Depth
.Test
;
1102 return ctx
->Color
.DitherFlag
;
1104 return ctx
->Fog
.Enabled
;
1106 return ctx
->Light
.Enabled
;
1115 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1116 case GL_LINE_SMOOTH
:
1117 return ctx
->Line
.SmoothFlag
;
1118 case GL_LINE_STIPPLE
:
1119 return ctx
->Line
.StippleFlag
;
1120 case GL_INDEX_LOGIC_OP
:
1121 return ctx
->Color
.IndexLogicOpEnabled
;
1122 case GL_COLOR_LOGIC_OP
:
1123 return ctx
->Color
.ColorLogicOpEnabled
;
1124 case GL_MAP1_COLOR_4
:
1125 return ctx
->Eval
.Map1Color4
;
1127 return ctx
->Eval
.Map1Index
;
1128 case GL_MAP1_NORMAL
:
1129 return ctx
->Eval
.Map1Normal
;
1130 case GL_MAP1_TEXTURE_COORD_1
:
1131 return ctx
->Eval
.Map1TextureCoord1
;
1132 case GL_MAP1_TEXTURE_COORD_2
:
1133 return ctx
->Eval
.Map1TextureCoord2
;
1134 case GL_MAP1_TEXTURE_COORD_3
:
1135 return ctx
->Eval
.Map1TextureCoord3
;
1136 case GL_MAP1_TEXTURE_COORD_4
:
1137 return ctx
->Eval
.Map1TextureCoord4
;
1138 case GL_MAP1_VERTEX_3
:
1139 return ctx
->Eval
.Map1Vertex3
;
1140 case GL_MAP1_VERTEX_4
:
1141 return ctx
->Eval
.Map1Vertex4
;
1142 case GL_MAP2_COLOR_4
:
1143 return ctx
->Eval
.Map2Color4
;
1145 return ctx
->Eval
.Map2Index
;
1146 case GL_MAP2_NORMAL
:
1147 return ctx
->Eval
.Map2Normal
;
1148 case GL_MAP2_TEXTURE_COORD_1
:
1149 return ctx
->Eval
.Map2TextureCoord1
;
1150 case GL_MAP2_TEXTURE_COORD_2
:
1151 return ctx
->Eval
.Map2TextureCoord2
;
1152 case GL_MAP2_TEXTURE_COORD_3
:
1153 return ctx
->Eval
.Map2TextureCoord3
;
1154 case GL_MAP2_TEXTURE_COORD_4
:
1155 return ctx
->Eval
.Map2TextureCoord4
;
1156 case GL_MAP2_VERTEX_3
:
1157 return ctx
->Eval
.Map2Vertex3
;
1158 case GL_MAP2_VERTEX_4
:
1159 return ctx
->Eval
.Map2Vertex4
;
1161 return ctx
->Transform
.Normalize
;
1162 case GL_POINT_SMOOTH
:
1163 return ctx
->Point
.SmoothFlag
;
1164 case GL_POLYGON_SMOOTH
:
1165 return ctx
->Polygon
.SmoothFlag
;
1166 case GL_POLYGON_STIPPLE
:
1167 return ctx
->Polygon
.StippleFlag
;
1168 case GL_POLYGON_OFFSET_POINT
:
1169 return ctx
->Polygon
.OffsetPoint
;
1170 case GL_POLYGON_OFFSET_LINE
:
1171 return ctx
->Polygon
.OffsetLine
;
1172 case GL_POLYGON_OFFSET_FILL
:
1173 return ctx
->Polygon
.OffsetFill
;
1174 case GL_RESCALE_NORMAL_EXT
:
1175 return ctx
->Transform
.RescaleNormals
;
1176 case GL_SCISSOR_TEST
:
1177 return ctx
->Scissor
.Enabled
;
1178 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1179 return ctx
->Texture
.SharedPalette
;
1180 case GL_STENCIL_TEST
:
1181 return ctx
->Stencil
.Enabled
;
1183 return is_texture_enabled(ctx
, TEXTURE_1D_BIT
);
1185 return is_texture_enabled(ctx
, TEXTURE_2D_BIT
);
1187 return is_texture_enabled(ctx
, TEXTURE_3D_BIT
);
1188 case GL_TEXTURE_GEN_S
:
1189 case GL_TEXTURE_GEN_T
:
1190 case GL_TEXTURE_GEN_R
:
1191 case GL_TEXTURE_GEN_Q
:
1193 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1195 GLbitfield coordBit
= S_BIT
<< (cap
- GL_TEXTURE_GEN_S
);
1196 return (texUnit
->TexGenEnabled
& coordBit
) ? GL_TRUE
: GL_FALSE
;
1201 case GL_TEXTURE_GEN_STR_OES
:
1203 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1205 return (texUnit
->TexGenEnabled
& STR_BITS
) == STR_BITS
1206 ? GL_TRUE
: GL_FALSE
;
1211 /* client-side state */
1212 case GL_VERTEX_ARRAY
:
1213 return (ctx
->Array
.ArrayObj
->Vertex
.Enabled
!= 0);
1214 case GL_NORMAL_ARRAY
:
1215 return (ctx
->Array
.ArrayObj
->Normal
.Enabled
!= 0);
1216 case GL_COLOR_ARRAY
:
1217 return (ctx
->Array
.ArrayObj
->Color
.Enabled
!= 0);
1218 case GL_INDEX_ARRAY
:
1219 return (ctx
->Array
.ArrayObj
->Index
.Enabled
!= 0);
1220 case GL_TEXTURE_COORD_ARRAY
:
1221 return (ctx
->Array
.ArrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
]
1223 case GL_EDGE_FLAG_ARRAY
:
1224 return (ctx
->Array
.ArrayObj
->EdgeFlag
.Enabled
!= 0);
1225 case GL_FOG_COORDINATE_ARRAY_EXT
:
1226 CHECK_EXTENSION(EXT_fog_coord
);
1227 return (ctx
->Array
.ArrayObj
->FogCoord
.Enabled
!= 0);
1228 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1229 CHECK_EXTENSION(EXT_secondary_color
);
1230 return (ctx
->Array
.ArrayObj
->SecondaryColor
.Enabled
!= 0);
1231 #if FEATURE_point_size_array
1232 case GL_POINT_SIZE_ARRAY_OES
:
1233 return (ctx
->Array
.ArrayObj
->PointSize
.Enabled
!= 0);
1236 /* GL_ARB_texture_cube_map */
1237 case GL_TEXTURE_CUBE_MAP_ARB
:
1238 CHECK_EXTENSION(ARB_texture_cube_map
);
1239 return is_texture_enabled(ctx
, TEXTURE_CUBE_BIT
);
1241 /* GL_EXT_secondary_color */
1242 case GL_COLOR_SUM_EXT
:
1243 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
);
1244 return ctx
->Fog
.ColorSumEnabled
;
1246 /* GL_ARB_multisample */
1247 case GL_MULTISAMPLE_ARB
:
1248 return ctx
->Multisample
.Enabled
;
1249 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1250 return ctx
->Multisample
.SampleAlphaToCoverage
;
1251 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1252 return ctx
->Multisample
.SampleAlphaToOne
;
1253 case GL_SAMPLE_COVERAGE_ARB
:
1254 return ctx
->Multisample
.SampleCoverage
;
1255 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1256 return ctx
->Multisample
.SampleCoverageInvert
;
1258 /* GL_IBM_rasterpos_clip */
1259 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1260 CHECK_EXTENSION(IBM_rasterpos_clip
);
1261 return ctx
->Transform
.RasterPositionUnclipped
;
1263 /* GL_NV_point_sprite */
1264 case GL_POINT_SPRITE_NV
:
1265 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
)
1266 return ctx
->Point
.PointSprite
;
1268 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1269 case GL_VERTEX_PROGRAM_ARB
:
1270 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1271 return ctx
->VertexProgram
.Enabled
;
1272 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
1273 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1274 return ctx
->VertexProgram
.PointSizeEnabled
;
1275 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
1276 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1277 return ctx
->VertexProgram
.TwoSideEnabled
;
1279 #if FEATURE_NV_vertex_program
1280 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
1281 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
1282 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
1283 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
1284 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
1285 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
1286 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
1287 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
1288 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
1289 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
1290 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
1291 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
1292 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
1293 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
1294 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
1295 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
1296 CHECK_EXTENSION(NV_vertex_program
);
1298 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
1299 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1300 return (ctx
->Array
.ArrayObj
->VertexAttrib
[n
].Enabled
!= 0);
1302 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
1303 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
1304 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
1305 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
1306 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
1307 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
1308 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
1309 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
1310 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
1311 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
1312 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
1313 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
1314 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
1315 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
1316 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
1317 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
1318 CHECK_EXTENSION(NV_vertex_program
);
1320 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
1321 return ctx
->Eval
.Map1Attrib
[map
];
1323 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
1324 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
1325 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
1326 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
1327 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
1328 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
1329 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
1330 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
1331 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
1332 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
1333 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
1334 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
1335 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
1336 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
1337 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
1338 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
1339 CHECK_EXTENSION(NV_vertex_program
);
1341 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
1342 return ctx
->Eval
.Map2Attrib
[map
];
1344 #endif /* FEATURE_NV_vertex_program */
1346 #if FEATURE_NV_fragment_program
1347 case GL_FRAGMENT_PROGRAM_NV
:
1348 CHECK_EXTENSION(NV_fragment_program
);
1349 return ctx
->FragmentProgram
.Enabled
;
1350 #endif /* FEATURE_NV_fragment_program */
1352 /* GL_NV_texture_rectangle */
1353 case GL_TEXTURE_RECTANGLE_NV
:
1354 CHECK_EXTENSION(NV_texture_rectangle
);
1355 return is_texture_enabled(ctx
, TEXTURE_RECT_BIT
);
1357 /* GL_EXT_stencil_two_side */
1358 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1359 CHECK_EXTENSION(EXT_stencil_two_side
);
1360 return ctx
->Stencil
.TestTwoSide
;
1362 #if FEATURE_ARB_fragment_program
1363 case GL_FRAGMENT_PROGRAM_ARB
:
1364 return ctx
->FragmentProgram
.Enabled
;
1365 #endif /* FEATURE_ARB_fragment_program */
1367 /* GL_EXT_depth_bounds_test */
1368 case GL_DEPTH_BOUNDS_TEST_EXT
:
1369 CHECK_EXTENSION(EXT_depth_bounds_test
);
1370 return ctx
->Depth
.BoundsTest
;
1372 /* GL_ARB_depth_clamp */
1373 case GL_DEPTH_CLAMP
:
1374 CHECK_EXTENSION(ARB_depth_clamp
);
1375 return ctx
->Transform
.DepthClamp
;
1377 #if FEATURE_ATI_fragment_shader
1378 case GL_FRAGMENT_SHADER_ATI
:
1379 CHECK_EXTENSION(ATI_fragment_shader
);
1380 return ctx
->ATIFragmentShader
.Enabled
;
1381 #endif /* FEATURE_ATI_fragment_shader */
1383 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
1384 CHECK_EXTENSION(ARB_seamless_cube_map
);
1385 return ctx
->Texture
.CubeMapSeamless
;
1387 #if FEATURE_EXT_transform_feedback
1388 case GL_RASTERIZER_DISCARD
:
1389 CHECK_EXTENSION(EXT_transform_feedback
);
1390 return ctx
->TransformFeedback
.RasterDiscard
;
1393 /* GL_NV_primitive_restart */
1394 case GL_PRIMITIVE_RESTART_NV
:
1395 if (!ctx
->Extensions
.NV_primitive_restart
) {
1396 goto invalid_enum_error
;
1398 return ctx
->Array
.PrimitiveRestart
;
1400 /* GL 3.1 primitive restart */
1401 case GL_PRIMITIVE_RESTART
:
1402 if (ctx
->VersionMajor
* 10 + ctx
->VersionMinor
< 31) {
1403 goto invalid_enum_error
;
1405 return ctx
->Array
.PrimitiveRestart
;
1407 /* GL3.0 - GL_framebuffer_sRGB */
1408 case GL_FRAMEBUFFER_SRGB_EXT
:
1409 CHECK_EXTENSION(EXT_framebuffer_sRGB
);
1410 return ctx
->Color
.sRGBEnabled
;
1413 goto invalid_enum_error
;
1419 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(0x%x)", (int) cap
);