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.
35 #include "simple_list.h"
38 #include "api_arrayelt.h"
43 #define CHECK_EXTENSION(EXTNAME, CAP) \
44 if (!ctx->Extensions.EXTNAME) { \
45 goto invalid_enum_error; \
50 * Helper to enable/disable client-side state.
53 client_state(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
55 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
61 var
= &arrayObj
->Vertex
.Enabled
;
62 flag
= _NEW_ARRAY_VERTEX
;
65 var
= &arrayObj
->Normal
.Enabled
;
66 flag
= _NEW_ARRAY_NORMAL
;
69 var
= &arrayObj
->Color
.Enabled
;
70 flag
= _NEW_ARRAY_COLOR0
;
73 var
= &arrayObj
->Index
.Enabled
;
74 flag
= _NEW_ARRAY_INDEX
;
76 case GL_TEXTURE_COORD_ARRAY
:
77 var
= &arrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
;
78 flag
= _NEW_ARRAY_TEXCOORD(ctx
->Array
.ActiveTexture
);
80 case GL_EDGE_FLAG_ARRAY
:
81 var
= &arrayObj
->EdgeFlag
.Enabled
;
82 flag
= _NEW_ARRAY_EDGEFLAG
;
84 case GL_FOG_COORDINATE_ARRAY_EXT
:
85 var
= &arrayObj
->FogCoord
.Enabled
;
86 flag
= _NEW_ARRAY_FOGCOORD
;
88 case GL_SECONDARY_COLOR_ARRAY_EXT
:
89 var
= &arrayObj
->SecondaryColor
.Enabled
;
90 flag
= _NEW_ARRAY_COLOR1
;
93 #if FEATURE_point_size_array
94 case GL_POINT_SIZE_ARRAY_OES
:
95 var
= &arrayObj
->PointSize
.Enabled
;
96 flag
= _NEW_ARRAY_POINT_SIZE
;
100 #if FEATURE_NV_vertex_program
101 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
102 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
103 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
104 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
105 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
106 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
107 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
108 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
109 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
110 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
111 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
112 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
113 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
114 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
115 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
116 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
117 CHECK_EXTENSION(NV_vertex_program
, cap
);
119 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
120 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
121 var
= &arrayObj
->VertexAttrib
[n
].Enabled
;
122 flag
= _NEW_ARRAY_ATTRIB(n
);
125 #endif /* FEATURE_NV_vertex_program */
128 goto invalid_enum_error
;
134 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
135 ctx
->Array
.NewState
|= flag
;
137 _ae_invalidate_state(ctx
, _NEW_ARRAY
);
142 ctx
->Array
.ArrayObj
->_Enabled
|= flag
;
144 ctx
->Array
.ArrayObj
->_Enabled
&= ~flag
;
146 if (ctx
->Driver
.Enable
) {
147 ctx
->Driver
.Enable( ctx
, cap
, state
);
153 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%sClientState(0x%x)",
154 state
? "Enable" : "Disable", cap
);
159 * Enable GL capability.
160 * \param cap state to enable/disable.
162 * Get's the current context, assures that we're outside glBegin()/glEnd() and
163 * calls client_state().
166 _mesa_EnableClientState( GLenum cap
)
168 GET_CURRENT_CONTEXT(ctx
);
169 ASSERT_OUTSIDE_BEGIN_END(ctx
);
170 client_state( ctx
, cap
, GL_TRUE
);
175 * Disable GL capability.
176 * \param cap state to enable/disable.
178 * Get's the current context, assures that we're outside glBegin()/glEnd() and
179 * calls client_state().
182 _mesa_DisableClientState( GLenum cap
)
184 GET_CURRENT_CONTEXT(ctx
);
185 ASSERT_OUTSIDE_BEGIN_END(ctx
);
186 client_state( ctx
, cap
, GL_FALSE
);
190 #undef CHECK_EXTENSION
191 #define CHECK_EXTENSION(EXTNAME, CAP) \
192 if (!ctx->Extensions.EXTNAME) { \
193 goto invalid_enum_error; \
196 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
197 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
198 goto invalid_enum_error; \
204 * Return pointer to current texture unit for setting/getting coordinate
206 * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
207 * higher than the number of supported coordinate units. And we'll return NULL.
209 static struct gl_texture_unit
*
210 get_texcoord_unit(GLcontext
*ctx
)
212 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
213 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnable/Disable(texcoord unit)");
217 return &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
223 * Helper function to enable or disable a texture target.
224 * \param bit one of the TEXTURE_x_BIT values
225 * \return GL_TRUE if state is changing or GL_FALSE if no change
228 enable_texture(GLcontext
*ctx
, GLboolean state
, GLbitfield texBit
)
230 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
231 const GLbitfield newenabled
= state
232 ? (texUnit
->Enabled
| texBit
) : (texUnit
->Enabled
& ~texBit
);
234 if (texUnit
->Enabled
== newenabled
)
237 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
238 texUnit
->Enabled
= newenabled
;
244 * Helper function to enable or disable state.
246 * \param ctx GL context.
247 * \param cap the state to enable/disable
248 * \param state whether to enable or disable the specified capability.
250 * Updates the current context and flushes the vertices as needed. For
251 * capabilities associated with extensions it verifies that those extensions
252 * are effectivly present before updating. Notifies the driver via
253 * dd_function_table::Enable.
256 _mesa_set_enable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
258 if (MESA_VERBOSE
& VERBOSE_API
)
259 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
260 state
? "glEnable" : "glDisable",
261 _mesa_lookup_enum_by_nr(cap
),
266 if (ctx
->Color
.AlphaEnabled
== state
)
268 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
269 ctx
->Color
.AlphaEnabled
= state
;
272 if (ctx
->Eval
.AutoNormal
== state
)
274 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
275 ctx
->Eval
.AutoNormal
= state
;
279 GLbitfield newEnabled
= state
* ((1 << ctx
->Const
.MaxDrawBuffers
) - 1);
280 if (newEnabled
!= ctx
->Color
.BlendEnabled
) {
281 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
282 ctx
->Color
.BlendEnabled
= newEnabled
;
294 const GLuint p
= cap
- GL_CLIP_PLANE0
;
296 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
)) == ((GLuint
) state
<< p
))
299 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
302 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
304 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
305 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
307 /* This derived state also calculated in clip.c and
308 * from _mesa_update_state() on changes to EyeUserPlane
309 * and ctx->ProjectionMatrix respectively.
311 _mesa_transform_vector( ctx
->Transform
._ClipUserPlane
[p
],
312 ctx
->Transform
.EyeUserPlane
[p
],
313 ctx
->ProjectionMatrixStack
.Top
->inv
);
316 ctx
->Transform
.ClipPlanesEnabled
&= ~(1 << p
);
321 case GL_COLOR_MATERIAL
:
322 if (ctx
->Light
.ColorMaterialEnabled
== state
)
324 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
325 FLUSH_CURRENT(ctx
, 0);
326 ctx
->Light
.ColorMaterialEnabled
= state
;
328 _mesa_update_color_material( ctx
,
329 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
333 if (ctx
->Polygon
.CullFlag
== state
)
335 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
336 ctx
->Polygon
.CullFlag
= state
;
338 case GL_CULL_VERTEX_EXT
:
339 CHECK_EXTENSION(EXT_cull_vertex
, cap
);
340 if (ctx
->Transform
.CullVertexFlag
== state
)
342 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
343 ctx
->Transform
.CullVertexFlag
= state
;
346 if (ctx
->Depth
.Test
== state
)
348 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
349 ctx
->Depth
.Test
= state
;
353 state
= GL_FALSE
; /* MESA_NO_DITHER env var */
355 if (ctx
->Color
.DitherFlag
== state
)
357 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
358 ctx
->Color
.DitherFlag
= state
;
361 if (ctx
->Fog
.Enabled
== state
)
363 FLUSH_VERTICES(ctx
, _NEW_FOG
);
364 ctx
->Fog
.Enabled
= state
;
367 CHECK_EXTENSION(EXT_histogram
, cap
);
368 if (ctx
->Pixel
.HistogramEnabled
== state
)
370 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
371 ctx
->Pixel
.HistogramEnabled
= state
;
381 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
383 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
384 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
386 insert_at_tail(&ctx
->Light
.EnabledList
,
387 &ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
390 remove_from_list(&ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
394 if (ctx
->Light
.Enabled
== state
)
396 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
397 ctx
->Light
.Enabled
= state
;
398 if (ctx
->Light
.Enabled
&& ctx
->Light
.Model
.TwoSide
)
399 ctx
->_TriangleCaps
|= DD_TRI_LIGHT_TWOSIDE
;
401 ctx
->_TriangleCaps
&= ~DD_TRI_LIGHT_TWOSIDE
;
404 if (ctx
->Line
.SmoothFlag
== state
)
406 FLUSH_VERTICES(ctx
, _NEW_LINE
);
407 ctx
->Line
.SmoothFlag
= state
;
408 ctx
->_TriangleCaps
^= DD_LINE_SMOOTH
;
410 case GL_LINE_STIPPLE
:
411 if (ctx
->Line
.StippleFlag
== state
)
413 FLUSH_VERTICES(ctx
, _NEW_LINE
);
414 ctx
->Line
.StippleFlag
= state
;
415 ctx
->_TriangleCaps
^= DD_LINE_STIPPLE
;
417 case GL_INDEX_LOGIC_OP
:
418 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
420 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
421 ctx
->Color
.IndexLogicOpEnabled
= state
;
423 case GL_COLOR_LOGIC_OP
:
424 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
426 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
427 ctx
->Color
.ColorLogicOpEnabled
= state
;
429 case GL_MAP1_COLOR_4
:
430 if (ctx
->Eval
.Map1Color4
== state
)
432 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
433 ctx
->Eval
.Map1Color4
= state
;
436 if (ctx
->Eval
.Map1Index
== state
)
438 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
439 ctx
->Eval
.Map1Index
= state
;
442 if (ctx
->Eval
.Map1Normal
== state
)
444 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
445 ctx
->Eval
.Map1Normal
= state
;
447 case GL_MAP1_TEXTURE_COORD_1
:
448 if (ctx
->Eval
.Map1TextureCoord1
== state
)
450 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
451 ctx
->Eval
.Map1TextureCoord1
= state
;
453 case GL_MAP1_TEXTURE_COORD_2
:
454 if (ctx
->Eval
.Map1TextureCoord2
== state
)
456 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
457 ctx
->Eval
.Map1TextureCoord2
= state
;
459 case GL_MAP1_TEXTURE_COORD_3
:
460 if (ctx
->Eval
.Map1TextureCoord3
== state
)
462 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
463 ctx
->Eval
.Map1TextureCoord3
= state
;
465 case GL_MAP1_TEXTURE_COORD_4
:
466 if (ctx
->Eval
.Map1TextureCoord4
== state
)
468 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
469 ctx
->Eval
.Map1TextureCoord4
= state
;
471 case GL_MAP1_VERTEX_3
:
472 if (ctx
->Eval
.Map1Vertex3
== state
)
474 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
475 ctx
->Eval
.Map1Vertex3
= state
;
477 case GL_MAP1_VERTEX_4
:
478 if (ctx
->Eval
.Map1Vertex4
== state
)
480 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
481 ctx
->Eval
.Map1Vertex4
= state
;
483 case GL_MAP2_COLOR_4
:
484 if (ctx
->Eval
.Map2Color4
== state
)
486 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
487 ctx
->Eval
.Map2Color4
= state
;
490 if (ctx
->Eval
.Map2Index
== state
)
492 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
493 ctx
->Eval
.Map2Index
= state
;
496 if (ctx
->Eval
.Map2Normal
== state
)
498 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
499 ctx
->Eval
.Map2Normal
= state
;
501 case GL_MAP2_TEXTURE_COORD_1
:
502 if (ctx
->Eval
.Map2TextureCoord1
== state
)
504 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
505 ctx
->Eval
.Map2TextureCoord1
= state
;
507 case GL_MAP2_TEXTURE_COORD_2
:
508 if (ctx
->Eval
.Map2TextureCoord2
== state
)
510 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
511 ctx
->Eval
.Map2TextureCoord2
= state
;
513 case GL_MAP2_TEXTURE_COORD_3
:
514 if (ctx
->Eval
.Map2TextureCoord3
== state
)
516 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
517 ctx
->Eval
.Map2TextureCoord3
= state
;
519 case GL_MAP2_TEXTURE_COORD_4
:
520 if (ctx
->Eval
.Map2TextureCoord4
== state
)
522 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
523 ctx
->Eval
.Map2TextureCoord4
= state
;
525 case GL_MAP2_VERTEX_3
:
526 if (ctx
->Eval
.Map2Vertex3
== state
)
528 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
529 ctx
->Eval
.Map2Vertex3
= state
;
531 case GL_MAP2_VERTEX_4
:
532 if (ctx
->Eval
.Map2Vertex4
== state
)
534 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
535 ctx
->Eval
.Map2Vertex4
= state
;
538 if (ctx
->Pixel
.MinMaxEnabled
== state
)
540 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
541 ctx
->Pixel
.MinMaxEnabled
= state
;
544 if (ctx
->Transform
.Normalize
== state
)
546 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
547 ctx
->Transform
.Normalize
= state
;
549 case GL_POINT_SMOOTH
:
550 if (ctx
->Point
.SmoothFlag
== state
)
552 FLUSH_VERTICES(ctx
, _NEW_POINT
);
553 ctx
->Point
.SmoothFlag
= state
;
554 ctx
->_TriangleCaps
^= DD_POINT_SMOOTH
;
556 case GL_POLYGON_SMOOTH
:
557 if (ctx
->Polygon
.SmoothFlag
== state
)
559 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
560 ctx
->Polygon
.SmoothFlag
= state
;
561 ctx
->_TriangleCaps
^= DD_TRI_SMOOTH
;
563 case GL_POLYGON_STIPPLE
:
564 if (ctx
->Polygon
.StippleFlag
== state
)
566 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
567 ctx
->Polygon
.StippleFlag
= state
;
568 ctx
->_TriangleCaps
^= DD_TRI_STIPPLE
;
570 case GL_POLYGON_OFFSET_POINT
:
571 if (ctx
->Polygon
.OffsetPoint
== state
)
573 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
574 ctx
->Polygon
.OffsetPoint
= state
;
576 case GL_POLYGON_OFFSET_LINE
:
577 if (ctx
->Polygon
.OffsetLine
== state
)
579 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
580 ctx
->Polygon
.OffsetLine
= state
;
582 case GL_POLYGON_OFFSET_FILL
:
583 /*case GL_POLYGON_OFFSET_EXT:*/
584 if (ctx
->Polygon
.OffsetFill
== state
)
586 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
587 ctx
->Polygon
.OffsetFill
= state
;
589 case GL_RESCALE_NORMAL_EXT
:
590 if (ctx
->Transform
.RescaleNormals
== state
)
592 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
593 ctx
->Transform
.RescaleNormals
= state
;
595 case GL_SCISSOR_TEST
:
596 if (ctx
->Scissor
.Enabled
== state
)
598 FLUSH_VERTICES(ctx
, _NEW_SCISSOR
);
599 ctx
->Scissor
.Enabled
= state
;
601 case GL_SHARED_TEXTURE_PALETTE_EXT
:
602 if (ctx
->Texture
.SharedPalette
== state
)
604 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
605 ctx
->Texture
.SharedPalette
= state
;
607 case GL_STENCIL_TEST
:
608 if (ctx
->Stencil
.Enabled
== state
)
610 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
611 ctx
->Stencil
.Enabled
= state
;
614 if (!enable_texture(ctx
, state
, TEXTURE_1D_BIT
)) {
619 if (!enable_texture(ctx
, state
, TEXTURE_2D_BIT
)) {
624 if (!enable_texture(ctx
, state
, TEXTURE_3D_BIT
)) {
628 case GL_TEXTURE_GEN_Q
:
630 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
632 GLuint newenabled
= texUnit
->TexGenEnabled
& ~Q_BIT
;
635 if (texUnit
->TexGenEnabled
== newenabled
)
637 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
638 texUnit
->TexGenEnabled
= newenabled
;
642 case GL_TEXTURE_GEN_R
:
644 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
646 GLuint newenabled
= texUnit
->TexGenEnabled
& ~R_BIT
;
649 if (texUnit
->TexGenEnabled
== newenabled
)
651 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
652 texUnit
->TexGenEnabled
= newenabled
;
656 case GL_TEXTURE_GEN_S
:
658 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
660 GLuint newenabled
= texUnit
->TexGenEnabled
& ~S_BIT
;
663 if (texUnit
->TexGenEnabled
== newenabled
)
665 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
666 texUnit
->TexGenEnabled
= newenabled
;
670 case GL_TEXTURE_GEN_T
:
672 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
674 GLuint newenabled
= texUnit
->TexGenEnabled
& ~T_BIT
;
677 if (texUnit
->TexGenEnabled
== newenabled
)
679 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
680 texUnit
->TexGenEnabled
= newenabled
;
688 case GL_VERTEX_ARRAY
:
689 case GL_NORMAL_ARRAY
:
692 case GL_TEXTURE_COORD_ARRAY
:
693 case GL_EDGE_FLAG_ARRAY
:
694 case GL_FOG_COORDINATE_ARRAY_EXT
:
695 case GL_SECONDARY_COLOR_ARRAY_EXT
:
696 case GL_POINT_SIZE_ARRAY_OES
:
697 client_state( ctx
, cap
, state
);
700 /* GL_SGI_color_table */
701 case GL_COLOR_TABLE_SGI
:
702 CHECK_EXTENSION(SGI_color_table
, cap
);
703 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] == state
)
705 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
706 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] = state
;
708 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
709 CHECK_EXTENSION(SGI_color_table
, cap
);
710 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] == state
)
712 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
713 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] = state
;
715 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
716 CHECK_EXTENSION(SGI_color_table
, cap
);
717 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] == state
)
719 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
720 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] = state
;
722 case GL_TEXTURE_COLOR_TABLE_SGI
:
723 CHECK_EXTENSION(SGI_texture_color_table
, cap
);
724 if (ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
== state
)
726 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
727 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
= state
;
730 /* GL_EXT_convolution */
731 case GL_CONVOLUTION_1D
:
732 CHECK_EXTENSION(EXT_convolution
, cap
);
733 if (ctx
->Pixel
.Convolution1DEnabled
== state
)
735 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
736 ctx
->Pixel
.Convolution1DEnabled
= state
;
738 case GL_CONVOLUTION_2D
:
739 CHECK_EXTENSION(EXT_convolution
, cap
);
740 if (ctx
->Pixel
.Convolution2DEnabled
== state
)
742 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
743 ctx
->Pixel
.Convolution2DEnabled
= state
;
745 case GL_SEPARABLE_2D
:
746 CHECK_EXTENSION(EXT_convolution
, cap
);
747 if (ctx
->Pixel
.Separable2DEnabled
== state
)
749 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
750 ctx
->Pixel
.Separable2DEnabled
= state
;
753 /* GL_ARB_texture_cube_map */
754 case GL_TEXTURE_CUBE_MAP_ARB
:
755 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
756 if (!enable_texture(ctx
, state
, TEXTURE_CUBE_BIT
)) {
761 /* GL_EXT_secondary_color */
762 case GL_COLOR_SUM_EXT
:
763 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
, cap
);
764 if (ctx
->Fog
.ColorSumEnabled
== state
)
766 FLUSH_VERTICES(ctx
, _NEW_FOG
);
767 ctx
->Fog
.ColorSumEnabled
= state
;
770 /* GL_ARB_multisample */
771 case GL_MULTISAMPLE_ARB
:
772 if (ctx
->Multisample
.Enabled
== state
)
774 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
775 ctx
->Multisample
.Enabled
= state
;
777 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
778 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
780 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
781 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
783 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
784 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
786 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
787 ctx
->Multisample
.SampleAlphaToOne
= state
;
789 case GL_SAMPLE_COVERAGE_ARB
:
790 if (ctx
->Multisample
.SampleCoverage
== state
)
792 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
793 ctx
->Multisample
.SampleCoverage
= state
;
795 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
796 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
798 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
799 ctx
->Multisample
.SampleCoverageInvert
= state
;
802 /* GL_IBM_rasterpos_clip */
803 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
804 CHECK_EXTENSION(IBM_rasterpos_clip
, cap
);
805 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
807 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
808 ctx
->Transform
.RasterPositionUnclipped
= state
;
811 /* GL_NV_point_sprite */
812 case GL_POINT_SPRITE_NV
:
813 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
814 if (ctx
->Point
.PointSprite
== state
)
816 FLUSH_VERTICES(ctx
, _NEW_POINT
);
817 ctx
->Point
.PointSprite
= state
;
820 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
821 case GL_VERTEX_PROGRAM_ARB
:
822 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
823 if (ctx
->VertexProgram
.Enabled
== state
)
825 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
826 ctx
->VertexProgram
.Enabled
= state
;
828 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
829 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
830 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
832 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
833 ctx
->VertexProgram
.PointSizeEnabled
= state
;
835 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
836 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
837 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
839 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
840 ctx
->VertexProgram
.TwoSideEnabled
= state
;
843 #if FEATURE_NV_vertex_program
844 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
845 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
846 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
847 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
848 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
849 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
850 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
851 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
852 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
853 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
854 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
855 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
856 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
857 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
858 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
859 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
860 CHECK_EXTENSION(NV_vertex_program
, cap
);
862 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
863 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
864 ctx
->Eval
.Map1Attrib
[map
] = state
;
867 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
868 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
869 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
870 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
871 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
872 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
873 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
874 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
875 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
876 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
877 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
878 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
879 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
880 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
881 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
882 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
883 CHECK_EXTENSION(NV_vertex_program
, cap
);
885 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
886 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
887 ctx
->Eval
.Map2Attrib
[map
] = state
;
890 #endif /* FEATURE_NV_vertex_program */
892 #if FEATURE_NV_fragment_program
893 case GL_FRAGMENT_PROGRAM_NV
:
894 CHECK_EXTENSION(NV_fragment_program
, cap
);
895 if (ctx
->FragmentProgram
.Enabled
== state
)
897 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
898 ctx
->FragmentProgram
.Enabled
= state
;
900 #endif /* FEATURE_NV_fragment_program */
902 /* GL_NV_texture_rectangle */
903 case GL_TEXTURE_RECTANGLE_NV
:
904 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
905 if (!enable_texture(ctx
, state
, TEXTURE_RECT_BIT
)) {
910 /* GL_EXT_stencil_two_side */
911 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
912 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
913 if (ctx
->Stencil
.TestTwoSide
== state
)
915 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
916 ctx
->Stencil
.TestTwoSide
= state
;
918 ctx
->Stencil
._BackFace
= 2;
919 ctx
->_TriangleCaps
|= DD_TRI_TWOSTENCIL
;
921 ctx
->Stencil
._BackFace
= 1;
922 ctx
->_TriangleCaps
&= ~DD_TRI_TWOSTENCIL
;
926 #if FEATURE_ARB_fragment_program
927 case GL_FRAGMENT_PROGRAM_ARB
:
928 CHECK_EXTENSION(ARB_fragment_program
, cap
);
929 if (ctx
->FragmentProgram
.Enabled
== state
)
931 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
932 ctx
->FragmentProgram
.Enabled
= state
;
934 #endif /* FEATURE_ARB_fragment_program */
936 /* GL_EXT_depth_bounds_test */
937 case GL_DEPTH_BOUNDS_TEST_EXT
:
938 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
939 if (ctx
->Depth
.BoundsTest
== state
)
941 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
942 ctx
->Depth
.BoundsTest
= state
;
946 if (ctx
->Transform
.DepthClamp
== state
)
948 CHECK_EXTENSION(ARB_depth_clamp
, cap
);
949 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
950 ctx
->Transform
.DepthClamp
= state
;
953 #if FEATURE_ATI_fragment_shader
954 case GL_FRAGMENT_SHADER_ATI
:
955 CHECK_EXTENSION(ATI_fragment_shader
, cap
);
956 if (ctx
->ATIFragmentShader
.Enabled
== state
)
958 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
959 ctx
->ATIFragmentShader
.Enabled
= state
;
963 /* GL_MESA_texture_array */
964 case GL_TEXTURE_1D_ARRAY_EXT
:
965 CHECK_EXTENSION(MESA_texture_array
, cap
);
966 if (!enable_texture(ctx
, state
, TEXTURE_1D_ARRAY_BIT
)) {
971 case GL_TEXTURE_2D_ARRAY_EXT
:
972 CHECK_EXTENSION(MESA_texture_array
, cap
);
973 if (!enable_texture(ctx
, state
, TEXTURE_2D_ARRAY_BIT
)) {
978 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
979 CHECK_EXTENSION(ARB_seamless_cube_map
, cap
);
980 ctx
->Texture
.CubeMapSeamless
= state
;
983 #if FEATURE_EXT_transform_feedback
984 case GL_RASTERIZER_DISCARD
:
985 CHECK_EXTENSION(EXT_transform_feedback
, cap
);
986 if (ctx
->TransformFeedback
.RasterDiscard
!= state
) {
987 ctx
->TransformFeedback
.RasterDiscard
= state
;
988 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
993 /* GL 3.1 primitive restart */
994 case GL_PRIMITIVE_RESTART
:
995 if (ctx
->VersionMajor
* 10 + ctx
->VersionMinor
< 31) {
996 goto invalid_enum_error
;
998 if (ctx
->Array
.PrimitiveRestart
!= state
) {
999 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
1000 ctx
->Array
.PrimitiveRestart
= state
;
1005 goto invalid_enum_error
;
1008 if (ctx
->Driver
.Enable
) {
1009 ctx
->Driver
.Enable( ctx
, cap
, state
);
1015 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%s(0x%x)",
1016 state
? "Enable" : "Disable", cap
);
1021 * Enable GL capability. Called by glEnable()
1022 * \param cap state to enable.
1025 _mesa_Enable( GLenum cap
)
1027 GET_CURRENT_CONTEXT(ctx
);
1028 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1030 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
1035 * Disable GL capability. Called by glDisable()
1036 * \param cap state to disable.
1039 _mesa_Disable( GLenum cap
)
1041 GET_CURRENT_CONTEXT(ctx
);
1042 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1044 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
1050 * Enable/disable an indexed state var.
1053 _mesa_set_enablei(GLcontext
*ctx
, GLenum cap
, GLuint index
, GLboolean state
)
1055 ASSERT(state
== 0 || state
== 1);
1058 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
1059 goto invalid_enum_error
;
1061 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1062 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
1063 state
? "glEnableIndexed" : "glDisableIndexed", index
);
1066 if (((ctx
->Color
.BlendEnabled
>> index
) & 1) != state
) {
1067 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
1069 ctx
->Color
.BlendEnabled
|= (1 << index
);
1071 ctx
->Color
.BlendEnabled
&= ~(1 << index
);
1075 goto invalid_enum_error
;
1080 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(cap=%s)",
1081 state
? "glEnablei" : "glDisablei",
1082 _mesa_lookup_enum_by_nr(cap
));
1087 _mesa_DisableIndexed( GLenum cap
, GLuint index
)
1089 GET_CURRENT_CONTEXT(ctx
);
1090 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1091 _mesa_set_enablei(ctx
, cap
, index
, GL_FALSE
);
1096 _mesa_EnableIndexed( GLenum cap
, GLuint index
)
1098 GET_CURRENT_CONTEXT(ctx
);
1099 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1100 _mesa_set_enablei(ctx
, cap
, index
, GL_TRUE
);
1104 GLboolean GLAPIENTRY
1105 _mesa_IsEnabledIndexed( GLenum cap
, GLuint index
)
1107 GET_CURRENT_CONTEXT(ctx
);
1110 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1111 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1115 return (ctx
->Color
.BlendEnabled
>> index
) & 1;
1117 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabledIndexed(cap=%s)",
1118 _mesa_lookup_enum_by_nr(cap
));
1126 #undef CHECK_EXTENSION
1127 #define CHECK_EXTENSION(EXTNAME) \
1128 if (!ctx->Extensions.EXTNAME) { \
1129 goto invalid_enum_error; \
1132 #undef CHECK_EXTENSION2
1133 #define CHECK_EXTENSION2(EXT1, EXT2) \
1134 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1135 goto invalid_enum_error; \
1140 * Helper function to determine whether a texture target is enabled.
1143 is_texture_enabled(GLcontext
*ctx
, GLbitfield bit
)
1145 const struct gl_texture_unit
*const texUnit
=
1146 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1147 return (texUnit
->Enabled
& bit
) ? GL_TRUE
: GL_FALSE
;
1152 * Return simple enable/disable state.
1154 * \param cap state variable to query.
1156 * Returns the state of the specified capability from the current GL context.
1157 * For the capabilities associated with extensions verifies that those
1158 * extensions are effectively present before reporting.
1160 GLboolean GLAPIENTRY
1161 _mesa_IsEnabled( GLenum cap
)
1163 GET_CURRENT_CONTEXT(ctx
);
1166 return ctx
->Color
.AlphaEnabled
;
1167 case GL_AUTO_NORMAL
:
1168 return ctx
->Eval
.AutoNormal
;
1170 return ctx
->Color
.BlendEnabled
& 1; /* return state for buffer[0] */
1171 case GL_CLIP_PLANE0
:
1172 case GL_CLIP_PLANE1
:
1173 case GL_CLIP_PLANE2
:
1174 case GL_CLIP_PLANE3
:
1175 case GL_CLIP_PLANE4
:
1176 case GL_CLIP_PLANE5
:
1177 return (ctx
->Transform
.ClipPlanesEnabled
>> (cap
- GL_CLIP_PLANE0
)) & 1;
1178 case GL_COLOR_MATERIAL
:
1179 return ctx
->Light
.ColorMaterialEnabled
;
1181 return ctx
->Polygon
.CullFlag
;
1183 return ctx
->Depth
.Test
;
1185 return ctx
->Color
.DitherFlag
;
1187 return ctx
->Fog
.Enabled
;
1189 return ctx
->Light
.Enabled
;
1198 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1199 case GL_LINE_SMOOTH
:
1200 return ctx
->Line
.SmoothFlag
;
1201 case GL_LINE_STIPPLE
:
1202 return ctx
->Line
.StippleFlag
;
1203 case GL_INDEX_LOGIC_OP
:
1204 return ctx
->Color
.IndexLogicOpEnabled
;
1205 case GL_COLOR_LOGIC_OP
:
1206 return ctx
->Color
.ColorLogicOpEnabled
;
1207 case GL_MAP1_COLOR_4
:
1208 return ctx
->Eval
.Map1Color4
;
1210 return ctx
->Eval
.Map1Index
;
1211 case GL_MAP1_NORMAL
:
1212 return ctx
->Eval
.Map1Normal
;
1213 case GL_MAP1_TEXTURE_COORD_1
:
1214 return ctx
->Eval
.Map1TextureCoord1
;
1215 case GL_MAP1_TEXTURE_COORD_2
:
1216 return ctx
->Eval
.Map1TextureCoord2
;
1217 case GL_MAP1_TEXTURE_COORD_3
:
1218 return ctx
->Eval
.Map1TextureCoord3
;
1219 case GL_MAP1_TEXTURE_COORD_4
:
1220 return ctx
->Eval
.Map1TextureCoord4
;
1221 case GL_MAP1_VERTEX_3
:
1222 return ctx
->Eval
.Map1Vertex3
;
1223 case GL_MAP1_VERTEX_4
:
1224 return ctx
->Eval
.Map1Vertex4
;
1225 case GL_MAP2_COLOR_4
:
1226 return ctx
->Eval
.Map2Color4
;
1228 return ctx
->Eval
.Map2Index
;
1229 case GL_MAP2_NORMAL
:
1230 return ctx
->Eval
.Map2Normal
;
1231 case GL_MAP2_TEXTURE_COORD_1
:
1232 return ctx
->Eval
.Map2TextureCoord1
;
1233 case GL_MAP2_TEXTURE_COORD_2
:
1234 return ctx
->Eval
.Map2TextureCoord2
;
1235 case GL_MAP2_TEXTURE_COORD_3
:
1236 return ctx
->Eval
.Map2TextureCoord3
;
1237 case GL_MAP2_TEXTURE_COORD_4
:
1238 return ctx
->Eval
.Map2TextureCoord4
;
1239 case GL_MAP2_VERTEX_3
:
1240 return ctx
->Eval
.Map2Vertex3
;
1241 case GL_MAP2_VERTEX_4
:
1242 return ctx
->Eval
.Map2Vertex4
;
1244 return ctx
->Transform
.Normalize
;
1245 case GL_POINT_SMOOTH
:
1246 return ctx
->Point
.SmoothFlag
;
1247 case GL_POLYGON_SMOOTH
:
1248 return ctx
->Polygon
.SmoothFlag
;
1249 case GL_POLYGON_STIPPLE
:
1250 return ctx
->Polygon
.StippleFlag
;
1251 case GL_POLYGON_OFFSET_POINT
:
1252 return ctx
->Polygon
.OffsetPoint
;
1253 case GL_POLYGON_OFFSET_LINE
:
1254 return ctx
->Polygon
.OffsetLine
;
1255 case GL_POLYGON_OFFSET_FILL
:
1256 /*case GL_POLYGON_OFFSET_EXT:*/
1257 return ctx
->Polygon
.OffsetFill
;
1258 case GL_RESCALE_NORMAL_EXT
:
1259 return ctx
->Transform
.RescaleNormals
;
1260 case GL_SCISSOR_TEST
:
1261 return ctx
->Scissor
.Enabled
;
1262 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1263 return ctx
->Texture
.SharedPalette
;
1264 case GL_STENCIL_TEST
:
1265 return ctx
->Stencil
.Enabled
;
1267 return is_texture_enabled(ctx
, TEXTURE_1D_BIT
);
1269 return is_texture_enabled(ctx
, TEXTURE_2D_BIT
);
1271 return is_texture_enabled(ctx
, TEXTURE_3D_BIT
);
1272 case GL_TEXTURE_GEN_Q
:
1274 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1276 return (texUnit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
;
1280 case GL_TEXTURE_GEN_R
:
1282 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1284 return (texUnit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
;
1288 case GL_TEXTURE_GEN_S
:
1290 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1292 return (texUnit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
;
1296 case GL_TEXTURE_GEN_T
:
1298 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1300 return (texUnit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
;
1308 case GL_VERTEX_ARRAY
:
1309 return (ctx
->Array
.ArrayObj
->Vertex
.Enabled
!= 0);
1310 case GL_NORMAL_ARRAY
:
1311 return (ctx
->Array
.ArrayObj
->Normal
.Enabled
!= 0);
1312 case GL_COLOR_ARRAY
:
1313 return (ctx
->Array
.ArrayObj
->Color
.Enabled
!= 0);
1314 case GL_INDEX_ARRAY
:
1315 return (ctx
->Array
.ArrayObj
->Index
.Enabled
!= 0);
1316 case GL_TEXTURE_COORD_ARRAY
:
1317 return (ctx
->Array
.ArrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
!= 0);
1318 case GL_EDGE_FLAG_ARRAY
:
1319 return (ctx
->Array
.ArrayObj
->EdgeFlag
.Enabled
!= 0);
1320 case GL_FOG_COORDINATE_ARRAY_EXT
:
1321 CHECK_EXTENSION(EXT_fog_coord
);
1322 return (ctx
->Array
.ArrayObj
->FogCoord
.Enabled
!= 0);
1323 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1324 CHECK_EXTENSION(EXT_secondary_color
);
1325 return (ctx
->Array
.ArrayObj
->SecondaryColor
.Enabled
!= 0);
1326 #if FEATURE_point_size_array
1327 case GL_POINT_SIZE_ARRAY_OES
:
1328 return (ctx
->Array
.ArrayObj
->PointSize
.Enabled
!= 0);
1331 /* GL_EXT_histogram */
1333 CHECK_EXTENSION(EXT_histogram
);
1334 return ctx
->Pixel
.HistogramEnabled
;
1336 CHECK_EXTENSION(EXT_histogram
);
1337 return ctx
->Pixel
.MinMaxEnabled
;
1339 /* GL_SGI_color_table */
1340 case GL_COLOR_TABLE_SGI
:
1341 CHECK_EXTENSION(SGI_color_table
);
1342 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
];
1343 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
1344 CHECK_EXTENSION(SGI_color_table
);
1345 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
];
1346 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
1347 CHECK_EXTENSION(SGI_color_table
);
1348 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
];
1350 /* GL_SGI_texture_color_table */
1351 case GL_TEXTURE_COLOR_TABLE_SGI
:
1352 CHECK_EXTENSION(SGI_texture_color_table
);
1353 return ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
;
1355 /* GL_EXT_convolution */
1356 case GL_CONVOLUTION_1D
:
1357 CHECK_EXTENSION(EXT_convolution
);
1358 return ctx
->Pixel
.Convolution1DEnabled
;
1359 case GL_CONVOLUTION_2D
:
1360 CHECK_EXTENSION(EXT_convolution
);
1361 return ctx
->Pixel
.Convolution2DEnabled
;
1362 case GL_SEPARABLE_2D
:
1363 CHECK_EXTENSION(EXT_convolution
);
1364 return ctx
->Pixel
.Separable2DEnabled
;
1366 /* GL_ARB_texture_cube_map */
1367 case GL_TEXTURE_CUBE_MAP_ARB
:
1368 CHECK_EXTENSION(ARB_texture_cube_map
);
1369 return is_texture_enabled(ctx
, TEXTURE_CUBE_BIT
);
1371 /* GL_EXT_secondary_color */
1372 case GL_COLOR_SUM_EXT
:
1373 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
);
1374 return ctx
->Fog
.ColorSumEnabled
;
1376 /* GL_ARB_multisample */
1377 case GL_MULTISAMPLE_ARB
:
1378 return ctx
->Multisample
.Enabled
;
1379 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1380 return ctx
->Multisample
.SampleAlphaToCoverage
;
1381 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1382 return ctx
->Multisample
.SampleAlphaToOne
;
1383 case GL_SAMPLE_COVERAGE_ARB
:
1384 return ctx
->Multisample
.SampleCoverage
;
1385 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1386 return ctx
->Multisample
.SampleCoverageInvert
;
1388 /* GL_IBM_rasterpos_clip */
1389 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1390 CHECK_EXTENSION(IBM_rasterpos_clip
);
1391 return ctx
->Transform
.RasterPositionUnclipped
;
1393 /* GL_NV_point_sprite */
1394 case GL_POINT_SPRITE_NV
:
1395 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
)
1396 return ctx
->Point
.PointSprite
;
1398 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1399 case GL_VERTEX_PROGRAM_ARB
:
1400 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1401 return ctx
->VertexProgram
.Enabled
;
1402 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
1403 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1404 return ctx
->VertexProgram
.PointSizeEnabled
;
1405 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
1406 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1407 return ctx
->VertexProgram
.TwoSideEnabled
;
1409 #if FEATURE_NV_vertex_program
1410 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
1411 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
1412 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
1413 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
1414 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
1415 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
1416 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
1417 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
1418 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
1419 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
1420 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
1421 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
1422 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
1423 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
1424 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
1425 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
1426 CHECK_EXTENSION(NV_vertex_program
);
1428 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
1429 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1430 return (ctx
->Array
.ArrayObj
->VertexAttrib
[n
].Enabled
!= 0);
1432 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
1433 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
1434 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
1435 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
1436 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
1437 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
1438 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
1439 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
1440 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
1441 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
1442 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
1443 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
1444 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
1445 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
1446 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
1447 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
1448 CHECK_EXTENSION(NV_vertex_program
);
1450 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
1451 return ctx
->Eval
.Map1Attrib
[map
];
1453 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
1454 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
1455 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
1456 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
1457 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
1458 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
1459 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
1460 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
1461 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
1462 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
1463 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
1464 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
1465 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
1466 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
1467 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
1468 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
1469 CHECK_EXTENSION(NV_vertex_program
);
1471 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
1472 return ctx
->Eval
.Map2Attrib
[map
];
1474 #endif /* FEATURE_NV_vertex_program */
1476 #if FEATURE_NV_fragment_program
1477 case GL_FRAGMENT_PROGRAM_NV
:
1478 CHECK_EXTENSION(NV_fragment_program
);
1479 return ctx
->FragmentProgram
.Enabled
;
1480 #endif /* FEATURE_NV_fragment_program */
1482 /* GL_NV_texture_rectangle */
1483 case GL_TEXTURE_RECTANGLE_NV
:
1484 CHECK_EXTENSION(NV_texture_rectangle
);
1485 return is_texture_enabled(ctx
, TEXTURE_RECT_BIT
);
1487 /* GL_EXT_stencil_two_side */
1488 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1489 CHECK_EXTENSION(EXT_stencil_two_side
);
1490 return ctx
->Stencil
.TestTwoSide
;
1492 #if FEATURE_ARB_fragment_program
1493 case GL_FRAGMENT_PROGRAM_ARB
:
1494 return ctx
->FragmentProgram
.Enabled
;
1495 #endif /* FEATURE_ARB_fragment_program */
1497 /* GL_EXT_depth_bounds_test */
1498 case GL_DEPTH_BOUNDS_TEST_EXT
:
1499 CHECK_EXTENSION(EXT_depth_bounds_test
);
1500 return ctx
->Depth
.BoundsTest
;
1502 /* GL_ARB_depth_clamp */
1503 case GL_DEPTH_CLAMP
:
1504 CHECK_EXTENSION(ARB_depth_clamp
);
1505 return ctx
->Transform
.DepthClamp
;
1507 #if FEATURE_ATI_fragment_shader
1508 case GL_FRAGMENT_SHADER_ATI
:
1509 CHECK_EXTENSION(ATI_fragment_shader
);
1510 return ctx
->ATIFragmentShader
.Enabled
;
1511 #endif /* FEATURE_ATI_fragment_shader */
1513 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
1514 CHECK_EXTENSION(ARB_seamless_cube_map
);
1515 return ctx
->Texture
.CubeMapSeamless
;
1517 #if FEATURE_EXT_transform_feedback
1518 case GL_RASTERIZER_DISCARD
:
1519 CHECK_EXTENSION(EXT_transform_feedback
);
1520 return ctx
->TransformFeedback
.RasterDiscard
;
1523 /* GL 3.1 primitive restart */
1524 case GL_PRIMITIVE_RESTART
:
1525 if (ctx
->VersionMajor
* 10 + ctx
->VersionMinor
< 31) {
1526 goto invalid_enum_error
;
1528 return ctx
->Array
.PrimitiveRestart
;
1531 goto invalid_enum_error
;
1537 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(0x%x)", (int) cap
);