3 * Enable/disable/query GL capabilities.
7 * Mesa 3-D graphics library
10 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
26 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
27 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
36 #include "simple_list.h"
39 #include "api_arrayelt.h"
44 #define CHECK_EXTENSION(EXTNAME, CAP) \
45 if (!ctx->Extensions.EXTNAME) { \
46 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)", \
47 state ? "Enable" : "Disable", CAP); \
53 * Helper to enable/disable client-side state.
56 client_state(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
58 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
64 var
= &arrayObj
->Vertex
.Enabled
;
65 flag
= _NEW_ARRAY_VERTEX
;
68 var
= &arrayObj
->Normal
.Enabled
;
69 flag
= _NEW_ARRAY_NORMAL
;
72 var
= &arrayObj
->Color
.Enabled
;
73 flag
= _NEW_ARRAY_COLOR0
;
76 var
= &arrayObj
->Index
.Enabled
;
77 flag
= _NEW_ARRAY_INDEX
;
79 case GL_TEXTURE_COORD_ARRAY
:
80 var
= &arrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
;
81 flag
= _NEW_ARRAY_TEXCOORD(ctx
->Array
.ActiveTexture
);
83 case GL_EDGE_FLAG_ARRAY
:
84 var
= &arrayObj
->EdgeFlag
.Enabled
;
85 flag
= _NEW_ARRAY_EDGEFLAG
;
87 case GL_FOG_COORDINATE_ARRAY_EXT
:
88 var
= &arrayObj
->FogCoord
.Enabled
;
89 flag
= _NEW_ARRAY_FOGCOORD
;
91 case GL_SECONDARY_COLOR_ARRAY_EXT
:
92 var
= &arrayObj
->SecondaryColor
.Enabled
;
93 flag
= _NEW_ARRAY_COLOR1
;
96 #if FEATURE_point_size_array
97 case GL_POINT_SIZE_ARRAY_OES
:
98 var
= &arrayObj
->PointSize
.Enabled
;
99 flag
= _NEW_ARRAY_POINT_SIZE
;
103 #if FEATURE_NV_vertex_program
104 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
105 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
106 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
107 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
108 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
109 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
110 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
111 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
112 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
113 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
114 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
115 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
116 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
117 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
118 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
119 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
120 CHECK_EXTENSION(NV_vertex_program
, cap
);
122 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
123 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
124 var
= &arrayObj
->VertexAttrib
[n
].Enabled
;
125 flag
= _NEW_ARRAY_ATTRIB(n
);
128 #endif /* FEATURE_NV_vertex_program */
131 _mesa_error( ctx
, GL_INVALID_ENUM
,
132 "glEnable/DisableClientState(0x%x)", cap
);
139 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
140 ctx
->Array
.NewState
|= flag
;
142 _ae_invalidate_state(ctx
, _NEW_ARRAY
);
147 ctx
->Array
.ArrayObj
->_Enabled
|= flag
;
149 ctx
->Array
.ArrayObj
->_Enabled
&= ~flag
;
151 if (ctx
->Driver
.Enable
) {
152 ctx
->Driver
.Enable( ctx
, cap
, state
);
158 * Enable GL capability.
159 * \param cap state to enable/disable.
161 * Get's the current context, assures that we're outside glBegin()/glEnd() and
162 * calls client_state().
165 _mesa_EnableClientState( GLenum cap
)
167 GET_CURRENT_CONTEXT(ctx
);
168 ASSERT_OUTSIDE_BEGIN_END(ctx
);
169 client_state( ctx
, cap
, GL_TRUE
);
174 * Disable GL capability.
175 * \param cap state to enable/disable.
177 * Get's the current context, assures that we're outside glBegin()/glEnd() and
178 * calls client_state().
181 _mesa_DisableClientState( GLenum cap
)
183 GET_CURRENT_CONTEXT(ctx
);
184 ASSERT_OUTSIDE_BEGIN_END(ctx
);
185 client_state( ctx
, cap
, GL_FALSE
);
189 #undef CHECK_EXTENSION
190 #define CHECK_EXTENSION(EXTNAME, CAP) \
191 if (!ctx->Extensions.EXTNAME) { \
192 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
193 state ? "Enable" : "Disable", CAP); \
197 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
198 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
199 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
200 state ? "Enable" : "Disable", CAP); \
207 * Return pointer to current texture unit for setting/getting coordinate
209 * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
210 * higher than the number of supported coordinate units. And we'll return NULL.
212 static struct gl_texture_unit
*
213 get_texcoord_unit(GLcontext
*ctx
)
215 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
216 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnable/Disable(texcoord unit)");
220 return &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
226 * Helper function to enable or disable a texture target.
227 * \param bit one of the TEXTURE_x_BIT values
228 * \return GL_TRUE if state is changing or GL_FALSE if no change
231 enable_texture(GLcontext
*ctx
, GLboolean state
, GLbitfield texBit
)
233 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
234 const GLbitfield newenabled
= state
235 ? (texUnit
->Enabled
| texBit
) : (texUnit
->Enabled
& ~texBit
);
237 if (texUnit
->Enabled
== newenabled
)
240 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
241 texUnit
->Enabled
= newenabled
;
247 * Helper function to enable or disable state.
249 * \param ctx GL context.
250 * \param cap the state to enable/disable
251 * \param state whether to enable or disable the specified capability.
253 * Updates the current context and flushes the vertices as needed. For
254 * capabilities associated with extensions it verifies that those extensions
255 * are effectivly present before updating. Notifies the driver via
256 * dd_function_table::Enable.
259 _mesa_set_enable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
261 if (MESA_VERBOSE
& VERBOSE_API
)
262 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
263 state
? "glEnable" : "glDisable",
264 _mesa_lookup_enum_by_nr(cap
),
269 if (ctx
->Color
.AlphaEnabled
== state
)
271 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
272 ctx
->Color
.AlphaEnabled
= state
;
275 if (ctx
->Eval
.AutoNormal
== state
)
277 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
278 ctx
->Eval
.AutoNormal
= state
;
282 GLbitfield newEnabled
= state
* ((1 << ctx
->Const
.MaxDrawBuffers
) - 1);
283 if (newEnabled
!= ctx
->Color
.BlendEnabled
) {
284 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
285 ctx
->Color
.BlendEnabled
= newEnabled
;
297 const GLuint p
= cap
- GL_CLIP_PLANE0
;
299 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
)) == ((GLuint
) state
<< p
))
302 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
305 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
307 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
308 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
310 /* This derived state also calculated in clip.c and
311 * from _mesa_update_state() on changes to EyeUserPlane
312 * and ctx->ProjectionMatrix respectively.
314 _mesa_transform_vector( ctx
->Transform
._ClipUserPlane
[p
],
315 ctx
->Transform
.EyeUserPlane
[p
],
316 ctx
->ProjectionMatrixStack
.Top
->inv
);
319 ctx
->Transform
.ClipPlanesEnabled
&= ~(1 << p
);
324 case GL_COLOR_MATERIAL
:
325 if (ctx
->Light
.ColorMaterialEnabled
== state
)
327 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
328 FLUSH_CURRENT(ctx
, 0);
329 ctx
->Light
.ColorMaterialEnabled
= state
;
331 _mesa_update_color_material( ctx
,
332 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
336 if (ctx
->Polygon
.CullFlag
== state
)
338 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
339 ctx
->Polygon
.CullFlag
= state
;
341 case GL_CULL_VERTEX_EXT
:
342 CHECK_EXTENSION(EXT_cull_vertex
, cap
);
343 if (ctx
->Transform
.CullVertexFlag
== state
)
345 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
346 ctx
->Transform
.CullVertexFlag
= state
;
349 if (ctx
->Depth
.Test
== state
)
351 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
352 ctx
->Depth
.Test
= state
;
356 state
= GL_FALSE
; /* MESA_NO_DITHER env var */
358 if (ctx
->Color
.DitherFlag
== state
)
360 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
361 ctx
->Color
.DitherFlag
= state
;
364 if (ctx
->Fog
.Enabled
== state
)
366 FLUSH_VERTICES(ctx
, _NEW_FOG
);
367 ctx
->Fog
.Enabled
= state
;
370 CHECK_EXTENSION(EXT_histogram
, cap
);
371 if (ctx
->Pixel
.HistogramEnabled
== state
)
373 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
374 ctx
->Pixel
.HistogramEnabled
= state
;
384 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
386 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
387 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
389 insert_at_tail(&ctx
->Light
.EnabledList
,
390 &ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
393 remove_from_list(&ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
397 if (ctx
->Light
.Enabled
== state
)
399 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
400 ctx
->Light
.Enabled
= state
;
401 if (ctx
->Light
.Enabled
&& ctx
->Light
.Model
.TwoSide
)
402 ctx
->_TriangleCaps
|= DD_TRI_LIGHT_TWOSIDE
;
404 ctx
->_TriangleCaps
&= ~DD_TRI_LIGHT_TWOSIDE
;
407 if (ctx
->Line
.SmoothFlag
== state
)
409 FLUSH_VERTICES(ctx
, _NEW_LINE
);
410 ctx
->Line
.SmoothFlag
= state
;
411 ctx
->_TriangleCaps
^= DD_LINE_SMOOTH
;
413 case GL_LINE_STIPPLE
:
414 if (ctx
->Line
.StippleFlag
== state
)
416 FLUSH_VERTICES(ctx
, _NEW_LINE
);
417 ctx
->Line
.StippleFlag
= state
;
418 ctx
->_TriangleCaps
^= DD_LINE_STIPPLE
;
420 case GL_INDEX_LOGIC_OP
:
421 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
423 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
424 ctx
->Color
.IndexLogicOpEnabled
= state
;
426 case GL_COLOR_LOGIC_OP
:
427 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
429 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
430 ctx
->Color
.ColorLogicOpEnabled
= state
;
432 case GL_MAP1_COLOR_4
:
433 if (ctx
->Eval
.Map1Color4
== state
)
435 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
436 ctx
->Eval
.Map1Color4
= state
;
439 if (ctx
->Eval
.Map1Index
== state
)
441 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
442 ctx
->Eval
.Map1Index
= state
;
445 if (ctx
->Eval
.Map1Normal
== state
)
447 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
448 ctx
->Eval
.Map1Normal
= state
;
450 case GL_MAP1_TEXTURE_COORD_1
:
451 if (ctx
->Eval
.Map1TextureCoord1
== state
)
453 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
454 ctx
->Eval
.Map1TextureCoord1
= state
;
456 case GL_MAP1_TEXTURE_COORD_2
:
457 if (ctx
->Eval
.Map1TextureCoord2
== state
)
459 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
460 ctx
->Eval
.Map1TextureCoord2
= state
;
462 case GL_MAP1_TEXTURE_COORD_3
:
463 if (ctx
->Eval
.Map1TextureCoord3
== state
)
465 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
466 ctx
->Eval
.Map1TextureCoord3
= state
;
468 case GL_MAP1_TEXTURE_COORD_4
:
469 if (ctx
->Eval
.Map1TextureCoord4
== state
)
471 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
472 ctx
->Eval
.Map1TextureCoord4
= state
;
474 case GL_MAP1_VERTEX_3
:
475 if (ctx
->Eval
.Map1Vertex3
== state
)
477 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
478 ctx
->Eval
.Map1Vertex3
= state
;
480 case GL_MAP1_VERTEX_4
:
481 if (ctx
->Eval
.Map1Vertex4
== state
)
483 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
484 ctx
->Eval
.Map1Vertex4
= state
;
486 case GL_MAP2_COLOR_4
:
487 if (ctx
->Eval
.Map2Color4
== state
)
489 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
490 ctx
->Eval
.Map2Color4
= state
;
493 if (ctx
->Eval
.Map2Index
== state
)
495 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
496 ctx
->Eval
.Map2Index
= state
;
499 if (ctx
->Eval
.Map2Normal
== state
)
501 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
502 ctx
->Eval
.Map2Normal
= state
;
504 case GL_MAP2_TEXTURE_COORD_1
:
505 if (ctx
->Eval
.Map2TextureCoord1
== state
)
507 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
508 ctx
->Eval
.Map2TextureCoord1
= state
;
510 case GL_MAP2_TEXTURE_COORD_2
:
511 if (ctx
->Eval
.Map2TextureCoord2
== state
)
513 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
514 ctx
->Eval
.Map2TextureCoord2
= state
;
516 case GL_MAP2_TEXTURE_COORD_3
:
517 if (ctx
->Eval
.Map2TextureCoord3
== state
)
519 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
520 ctx
->Eval
.Map2TextureCoord3
= state
;
522 case GL_MAP2_TEXTURE_COORD_4
:
523 if (ctx
->Eval
.Map2TextureCoord4
== state
)
525 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
526 ctx
->Eval
.Map2TextureCoord4
= state
;
528 case GL_MAP2_VERTEX_3
:
529 if (ctx
->Eval
.Map2Vertex3
== state
)
531 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
532 ctx
->Eval
.Map2Vertex3
= state
;
534 case GL_MAP2_VERTEX_4
:
535 if (ctx
->Eval
.Map2Vertex4
== state
)
537 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
538 ctx
->Eval
.Map2Vertex4
= state
;
541 if (ctx
->Pixel
.MinMaxEnabled
== state
)
543 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
544 ctx
->Pixel
.MinMaxEnabled
= state
;
547 if (ctx
->Transform
.Normalize
== state
)
549 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
550 ctx
->Transform
.Normalize
= state
;
552 case GL_POINT_SMOOTH
:
553 if (ctx
->Point
.SmoothFlag
== state
)
555 FLUSH_VERTICES(ctx
, _NEW_POINT
);
556 ctx
->Point
.SmoothFlag
= state
;
557 ctx
->_TriangleCaps
^= DD_POINT_SMOOTH
;
559 case GL_POLYGON_SMOOTH
:
560 if (ctx
->Polygon
.SmoothFlag
== state
)
562 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
563 ctx
->Polygon
.SmoothFlag
= state
;
564 ctx
->_TriangleCaps
^= DD_TRI_SMOOTH
;
566 case GL_POLYGON_STIPPLE
:
567 if (ctx
->Polygon
.StippleFlag
== state
)
569 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
570 ctx
->Polygon
.StippleFlag
= state
;
571 ctx
->_TriangleCaps
^= DD_TRI_STIPPLE
;
573 case GL_POLYGON_OFFSET_POINT
:
574 if (ctx
->Polygon
.OffsetPoint
== state
)
576 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
577 ctx
->Polygon
.OffsetPoint
= state
;
579 case GL_POLYGON_OFFSET_LINE
:
580 if (ctx
->Polygon
.OffsetLine
== state
)
582 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
583 ctx
->Polygon
.OffsetLine
= state
;
585 case GL_POLYGON_OFFSET_FILL
:
586 /*case GL_POLYGON_OFFSET_EXT:*/
587 if (ctx
->Polygon
.OffsetFill
== state
)
589 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
590 ctx
->Polygon
.OffsetFill
= state
;
592 case GL_RESCALE_NORMAL_EXT
:
593 if (ctx
->Transform
.RescaleNormals
== state
)
595 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
596 ctx
->Transform
.RescaleNormals
= state
;
598 case GL_SCISSOR_TEST
:
599 if (ctx
->Scissor
.Enabled
== state
)
601 FLUSH_VERTICES(ctx
, _NEW_SCISSOR
);
602 ctx
->Scissor
.Enabled
= state
;
604 case GL_SHARED_TEXTURE_PALETTE_EXT
:
605 if (ctx
->Texture
.SharedPalette
== state
)
607 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
608 ctx
->Texture
.SharedPalette
= state
;
610 case GL_STENCIL_TEST
:
611 if (ctx
->Stencil
.Enabled
== state
)
613 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
614 ctx
->Stencil
.Enabled
= state
;
617 if (!enable_texture(ctx
, state
, TEXTURE_1D_BIT
)) {
622 if (!enable_texture(ctx
, state
, TEXTURE_2D_BIT
)) {
627 if (!enable_texture(ctx
, state
, TEXTURE_3D_BIT
)) {
631 case GL_TEXTURE_GEN_Q
:
633 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
635 GLuint newenabled
= texUnit
->TexGenEnabled
& ~Q_BIT
;
638 if (texUnit
->TexGenEnabled
== newenabled
)
640 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
641 texUnit
->TexGenEnabled
= newenabled
;
645 case GL_TEXTURE_GEN_R
:
647 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
649 GLuint newenabled
= texUnit
->TexGenEnabled
& ~R_BIT
;
652 if (texUnit
->TexGenEnabled
== newenabled
)
654 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
655 texUnit
->TexGenEnabled
= newenabled
;
659 case GL_TEXTURE_GEN_S
:
661 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
663 GLuint newenabled
= texUnit
->TexGenEnabled
& ~S_BIT
;
666 if (texUnit
->TexGenEnabled
== newenabled
)
668 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
669 texUnit
->TexGenEnabled
= newenabled
;
673 case GL_TEXTURE_GEN_T
:
675 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
677 GLuint newenabled
= texUnit
->TexGenEnabled
& ~T_BIT
;
680 if (texUnit
->TexGenEnabled
== newenabled
)
682 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
683 texUnit
->TexGenEnabled
= newenabled
;
691 case GL_VERTEX_ARRAY
:
692 case GL_NORMAL_ARRAY
:
695 case GL_TEXTURE_COORD_ARRAY
:
696 case GL_EDGE_FLAG_ARRAY
:
697 case GL_FOG_COORDINATE_ARRAY_EXT
:
698 case GL_SECONDARY_COLOR_ARRAY_EXT
:
699 case GL_POINT_SIZE_ARRAY_OES
:
700 client_state( ctx
, cap
, state
);
703 /* GL_SGI_color_table */
704 case GL_COLOR_TABLE_SGI
:
705 CHECK_EXTENSION(SGI_color_table
, cap
);
706 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] == state
)
708 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
709 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] = state
;
711 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
712 CHECK_EXTENSION(SGI_color_table
, cap
);
713 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] == state
)
715 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
716 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] = state
;
718 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
719 CHECK_EXTENSION(SGI_color_table
, cap
);
720 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] == state
)
722 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
723 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] = state
;
725 case GL_TEXTURE_COLOR_TABLE_SGI
:
726 CHECK_EXTENSION(SGI_texture_color_table
, cap
);
727 if (ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
== state
)
729 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
730 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
= state
;
733 /* GL_EXT_convolution */
734 case GL_CONVOLUTION_1D
:
735 CHECK_EXTENSION(EXT_convolution
, cap
);
736 if (ctx
->Pixel
.Convolution1DEnabled
== state
)
738 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
739 ctx
->Pixel
.Convolution1DEnabled
= state
;
741 case GL_CONVOLUTION_2D
:
742 CHECK_EXTENSION(EXT_convolution
, cap
);
743 if (ctx
->Pixel
.Convolution2DEnabled
== state
)
745 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
746 ctx
->Pixel
.Convolution2DEnabled
= state
;
748 case GL_SEPARABLE_2D
:
749 CHECK_EXTENSION(EXT_convolution
, cap
);
750 if (ctx
->Pixel
.Separable2DEnabled
== state
)
752 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
753 ctx
->Pixel
.Separable2DEnabled
= state
;
756 /* GL_ARB_texture_cube_map */
757 case GL_TEXTURE_CUBE_MAP_ARB
:
758 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
759 if (!enable_texture(ctx
, state
, TEXTURE_CUBE_BIT
)) {
764 /* GL_EXT_secondary_color */
765 case GL_COLOR_SUM_EXT
:
766 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
, cap
);
767 if (ctx
->Fog
.ColorSumEnabled
== state
)
769 FLUSH_VERTICES(ctx
, _NEW_FOG
);
770 ctx
->Fog
.ColorSumEnabled
= state
;
773 /* GL_ARB_multisample */
774 case GL_MULTISAMPLE_ARB
:
775 if (ctx
->Multisample
.Enabled
== state
)
777 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
778 ctx
->Multisample
.Enabled
= state
;
780 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
781 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
783 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
784 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
786 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
787 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
789 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
790 ctx
->Multisample
.SampleAlphaToOne
= state
;
792 case GL_SAMPLE_COVERAGE_ARB
:
793 if (ctx
->Multisample
.SampleCoverage
== state
)
795 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
796 ctx
->Multisample
.SampleCoverage
= state
;
798 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
799 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
801 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
802 ctx
->Multisample
.SampleCoverageInvert
= state
;
805 /* GL_IBM_rasterpos_clip */
806 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
807 CHECK_EXTENSION(IBM_rasterpos_clip
, cap
);
808 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
810 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
811 ctx
->Transform
.RasterPositionUnclipped
= state
;
814 /* GL_NV_point_sprite */
815 case GL_POINT_SPRITE_NV
:
816 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
817 if (ctx
->Point
.PointSprite
== state
)
819 FLUSH_VERTICES(ctx
, _NEW_POINT
);
820 ctx
->Point
.PointSprite
= state
;
823 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
824 case GL_VERTEX_PROGRAM_ARB
:
825 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
826 if (ctx
->VertexProgram
.Enabled
== state
)
828 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
829 ctx
->VertexProgram
.Enabled
= state
;
831 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
832 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
833 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
835 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
836 ctx
->VertexProgram
.PointSizeEnabled
= state
;
838 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
839 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
840 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
842 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
843 ctx
->VertexProgram
.TwoSideEnabled
= state
;
846 #if FEATURE_NV_vertex_program
847 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
848 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
849 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
850 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
851 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
852 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
853 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
854 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
855 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
856 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
857 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
858 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
859 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
860 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
861 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
862 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
863 CHECK_EXTENSION(NV_vertex_program
, cap
);
865 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
866 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
867 ctx
->Eval
.Map1Attrib
[map
] = state
;
870 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
871 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
872 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
873 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
874 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
875 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
876 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
877 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
878 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
879 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
880 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
881 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
882 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
883 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
884 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
885 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
886 CHECK_EXTENSION(NV_vertex_program
, cap
);
888 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
889 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
890 ctx
->Eval
.Map2Attrib
[map
] = state
;
893 #endif /* FEATURE_NV_vertex_program */
895 #if FEATURE_NV_fragment_program
896 case GL_FRAGMENT_PROGRAM_NV
:
897 CHECK_EXTENSION(NV_fragment_program
, cap
);
898 if (ctx
->FragmentProgram
.Enabled
== state
)
900 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
901 ctx
->FragmentProgram
.Enabled
= state
;
903 #endif /* FEATURE_NV_fragment_program */
905 /* GL_NV_texture_rectangle */
906 case GL_TEXTURE_RECTANGLE_NV
:
907 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
908 if (!enable_texture(ctx
, state
, TEXTURE_RECT_BIT
)) {
913 /* GL_EXT_stencil_two_side */
914 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
915 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
916 if (ctx
->Stencil
.TestTwoSide
== state
)
918 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
919 ctx
->Stencil
.TestTwoSide
= state
;
921 ctx
->Stencil
._BackFace
= 2;
922 ctx
->_TriangleCaps
|= DD_TRI_TWOSTENCIL
;
924 ctx
->Stencil
._BackFace
= 1;
925 ctx
->_TriangleCaps
&= ~DD_TRI_TWOSTENCIL
;
929 #if FEATURE_ARB_fragment_program
930 case GL_FRAGMENT_PROGRAM_ARB
:
931 CHECK_EXTENSION(ARB_fragment_program
, cap
);
932 if (ctx
->FragmentProgram
.Enabled
== state
)
934 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
935 ctx
->FragmentProgram
.Enabled
= state
;
937 #endif /* FEATURE_ARB_fragment_program */
939 /* GL_EXT_depth_bounds_test */
940 case GL_DEPTH_BOUNDS_TEST_EXT
:
941 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
942 if (ctx
->Depth
.BoundsTest
== state
)
944 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
945 ctx
->Depth
.BoundsTest
= state
;
949 if (ctx
->Transform
.DepthClamp
== state
)
951 CHECK_EXTENSION(ARB_depth_clamp
, cap
);
952 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
953 ctx
->Transform
.DepthClamp
= state
;
956 #if FEATURE_ATI_fragment_shader
957 case GL_FRAGMENT_SHADER_ATI
:
958 CHECK_EXTENSION(ATI_fragment_shader
, cap
);
959 if (ctx
->ATIFragmentShader
.Enabled
== state
)
961 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
962 ctx
->ATIFragmentShader
.Enabled
= state
;
966 /* GL_MESA_texture_array */
967 case GL_TEXTURE_1D_ARRAY_EXT
:
968 CHECK_EXTENSION(MESA_texture_array
, cap
);
969 if (!enable_texture(ctx
, state
, TEXTURE_1D_ARRAY_BIT
)) {
974 case GL_TEXTURE_2D_ARRAY_EXT
:
975 CHECK_EXTENSION(MESA_texture_array
, cap
);
976 if (!enable_texture(ctx
, state
, TEXTURE_2D_ARRAY_BIT
)) {
981 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
982 CHECK_EXTENSION(ARB_seamless_cube_map
, cap
);
983 ctx
->Texture
.CubeMapSeamless
= state
;
987 _mesa_error(ctx
, GL_INVALID_ENUM
,
988 "%s(0x%x)", state
? "glEnable" : "glDisable", cap
);
992 if (ctx
->Driver
.Enable
) {
993 ctx
->Driver
.Enable( ctx
, cap
, state
);
999 * Enable GL capability. Called by glEnable()
1000 * \param cap state to enable.
1003 _mesa_Enable( GLenum cap
)
1005 GET_CURRENT_CONTEXT(ctx
);
1006 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1008 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
1013 * Disable GL capability. Called by glDisable()
1014 * \param cap state to disable.
1017 _mesa_Disable( GLenum cap
)
1019 GET_CURRENT_CONTEXT(ctx
);
1020 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1022 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
1028 * Enable/disable an indexed state var.
1031 _mesa_set_enablei(GLcontext
*ctx
, GLenum cap
, GLuint index
, GLboolean state
)
1033 ASSERT(state
== 0 || state
== 1);
1036 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
1039 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1040 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
1041 state
? "glEnableIndexed" : "glDisableIndexed", index
);
1044 if (((ctx
->Color
.BlendEnabled
>> index
) & 1) != state
) {
1045 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
1047 ctx
->Color
.BlendEnabled
|= (1 << index
);
1049 ctx
->Color
.BlendEnabled
&= ~(1 << index
);
1058 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(cap=%s)",
1059 state
? "glEnablei" : "glDisablei",
1060 _mesa_lookup_enum_by_nr(cap
));
1065 _mesa_DisableIndexed( GLenum cap
, GLuint index
)
1067 GET_CURRENT_CONTEXT(ctx
);
1068 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1069 _mesa_set_enablei(ctx
, cap
, index
, GL_FALSE
);
1074 _mesa_EnableIndexed( GLenum cap
, GLuint index
)
1076 GET_CURRENT_CONTEXT(ctx
);
1077 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1078 _mesa_set_enablei(ctx
, cap
, index
, GL_TRUE
);
1082 GLboolean GLAPIENTRY
1083 _mesa_IsEnabledIndexed( GLenum cap
, GLuint index
)
1085 GET_CURRENT_CONTEXT(ctx
);
1088 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1089 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1093 return (ctx
->Color
.BlendEnabled
>> index
) & 1;
1095 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabledIndexed(cap=%s)",
1096 _mesa_lookup_enum_by_nr(cap
));
1104 #undef CHECK_EXTENSION
1105 #define CHECK_EXTENSION(EXTNAME) \
1106 if (!ctx->Extensions.EXTNAME) { \
1107 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1111 #undef CHECK_EXTENSION2
1112 #define CHECK_EXTENSION2(EXT1, EXT2) \
1113 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1114 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1120 * Helper function to determine whether a texture target is enabled.
1123 is_texture_enabled(GLcontext
*ctx
, GLbitfield bit
)
1125 const struct gl_texture_unit
*const texUnit
=
1126 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1127 return (texUnit
->Enabled
& bit
) ? GL_TRUE
: GL_FALSE
;
1132 * Return simple enable/disable state.
1134 * \param cap state variable to query.
1136 * Returns the state of the specified capability from the current GL context.
1137 * For the capabilities associated with extensions verifies that those
1138 * extensions are effectively present before reporting.
1140 GLboolean GLAPIENTRY
1141 _mesa_IsEnabled( GLenum cap
)
1143 GET_CURRENT_CONTEXT(ctx
);
1146 return ctx
->Color
.AlphaEnabled
;
1147 case GL_AUTO_NORMAL
:
1148 return ctx
->Eval
.AutoNormal
;
1150 return ctx
->Color
.BlendEnabled
& 1; /* return state for buffer[0] */
1151 case GL_CLIP_PLANE0
:
1152 case GL_CLIP_PLANE1
:
1153 case GL_CLIP_PLANE2
:
1154 case GL_CLIP_PLANE3
:
1155 case GL_CLIP_PLANE4
:
1156 case GL_CLIP_PLANE5
:
1157 return (ctx
->Transform
.ClipPlanesEnabled
>> (cap
- GL_CLIP_PLANE0
)) & 1;
1158 case GL_COLOR_MATERIAL
:
1159 return ctx
->Light
.ColorMaterialEnabled
;
1161 return ctx
->Polygon
.CullFlag
;
1163 return ctx
->Depth
.Test
;
1165 return ctx
->Color
.DitherFlag
;
1167 return ctx
->Fog
.Enabled
;
1169 return ctx
->Light
.Enabled
;
1178 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1179 case GL_LINE_SMOOTH
:
1180 return ctx
->Line
.SmoothFlag
;
1181 case GL_LINE_STIPPLE
:
1182 return ctx
->Line
.StippleFlag
;
1183 case GL_INDEX_LOGIC_OP
:
1184 return ctx
->Color
.IndexLogicOpEnabled
;
1185 case GL_COLOR_LOGIC_OP
:
1186 return ctx
->Color
.ColorLogicOpEnabled
;
1187 case GL_MAP1_COLOR_4
:
1188 return ctx
->Eval
.Map1Color4
;
1190 return ctx
->Eval
.Map1Index
;
1191 case GL_MAP1_NORMAL
:
1192 return ctx
->Eval
.Map1Normal
;
1193 case GL_MAP1_TEXTURE_COORD_1
:
1194 return ctx
->Eval
.Map1TextureCoord1
;
1195 case GL_MAP1_TEXTURE_COORD_2
:
1196 return ctx
->Eval
.Map1TextureCoord2
;
1197 case GL_MAP1_TEXTURE_COORD_3
:
1198 return ctx
->Eval
.Map1TextureCoord3
;
1199 case GL_MAP1_TEXTURE_COORD_4
:
1200 return ctx
->Eval
.Map1TextureCoord4
;
1201 case GL_MAP1_VERTEX_3
:
1202 return ctx
->Eval
.Map1Vertex3
;
1203 case GL_MAP1_VERTEX_4
:
1204 return ctx
->Eval
.Map1Vertex4
;
1205 case GL_MAP2_COLOR_4
:
1206 return ctx
->Eval
.Map2Color4
;
1208 return ctx
->Eval
.Map2Index
;
1209 case GL_MAP2_NORMAL
:
1210 return ctx
->Eval
.Map2Normal
;
1211 case GL_MAP2_TEXTURE_COORD_1
:
1212 return ctx
->Eval
.Map2TextureCoord1
;
1213 case GL_MAP2_TEXTURE_COORD_2
:
1214 return ctx
->Eval
.Map2TextureCoord2
;
1215 case GL_MAP2_TEXTURE_COORD_3
:
1216 return ctx
->Eval
.Map2TextureCoord3
;
1217 case GL_MAP2_TEXTURE_COORD_4
:
1218 return ctx
->Eval
.Map2TextureCoord4
;
1219 case GL_MAP2_VERTEX_3
:
1220 return ctx
->Eval
.Map2Vertex3
;
1221 case GL_MAP2_VERTEX_4
:
1222 return ctx
->Eval
.Map2Vertex4
;
1224 return ctx
->Transform
.Normalize
;
1225 case GL_POINT_SMOOTH
:
1226 return ctx
->Point
.SmoothFlag
;
1227 case GL_POLYGON_SMOOTH
:
1228 return ctx
->Polygon
.SmoothFlag
;
1229 case GL_POLYGON_STIPPLE
:
1230 return ctx
->Polygon
.StippleFlag
;
1231 case GL_POLYGON_OFFSET_POINT
:
1232 return ctx
->Polygon
.OffsetPoint
;
1233 case GL_POLYGON_OFFSET_LINE
:
1234 return ctx
->Polygon
.OffsetLine
;
1235 case GL_POLYGON_OFFSET_FILL
:
1236 /*case GL_POLYGON_OFFSET_EXT:*/
1237 return ctx
->Polygon
.OffsetFill
;
1238 case GL_RESCALE_NORMAL_EXT
:
1239 return ctx
->Transform
.RescaleNormals
;
1240 case GL_SCISSOR_TEST
:
1241 return ctx
->Scissor
.Enabled
;
1242 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1243 return ctx
->Texture
.SharedPalette
;
1244 case GL_STENCIL_TEST
:
1245 return ctx
->Stencil
.Enabled
;
1247 return is_texture_enabled(ctx
, TEXTURE_1D_BIT
);
1249 return is_texture_enabled(ctx
, TEXTURE_2D_BIT
);
1251 return is_texture_enabled(ctx
, TEXTURE_3D_BIT
);
1252 case GL_TEXTURE_GEN_Q
:
1254 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1256 return (texUnit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
;
1260 case GL_TEXTURE_GEN_R
:
1262 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1264 return (texUnit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
;
1268 case GL_TEXTURE_GEN_S
:
1270 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1272 return (texUnit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
;
1276 case GL_TEXTURE_GEN_T
:
1278 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1280 return (texUnit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
;
1288 case GL_VERTEX_ARRAY
:
1289 return (ctx
->Array
.ArrayObj
->Vertex
.Enabled
!= 0);
1290 case GL_NORMAL_ARRAY
:
1291 return (ctx
->Array
.ArrayObj
->Normal
.Enabled
!= 0);
1292 case GL_COLOR_ARRAY
:
1293 return (ctx
->Array
.ArrayObj
->Color
.Enabled
!= 0);
1294 case GL_INDEX_ARRAY
:
1295 return (ctx
->Array
.ArrayObj
->Index
.Enabled
!= 0);
1296 case GL_TEXTURE_COORD_ARRAY
:
1297 return (ctx
->Array
.ArrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
!= 0);
1298 case GL_EDGE_FLAG_ARRAY
:
1299 return (ctx
->Array
.ArrayObj
->EdgeFlag
.Enabled
!= 0);
1300 case GL_FOG_COORDINATE_ARRAY_EXT
:
1301 CHECK_EXTENSION(EXT_fog_coord
);
1302 return (ctx
->Array
.ArrayObj
->FogCoord
.Enabled
!= 0);
1303 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1304 CHECK_EXTENSION(EXT_secondary_color
);
1305 return (ctx
->Array
.ArrayObj
->SecondaryColor
.Enabled
!= 0);
1306 #if FEATURE_point_size_array
1307 case GL_POINT_SIZE_ARRAY_OES
:
1308 return (ctx
->Array
.ArrayObj
->PointSize
.Enabled
!= 0);
1311 /* GL_EXT_histogram */
1313 CHECK_EXTENSION(EXT_histogram
);
1314 return ctx
->Pixel
.HistogramEnabled
;
1316 CHECK_EXTENSION(EXT_histogram
);
1317 return ctx
->Pixel
.MinMaxEnabled
;
1319 /* GL_SGI_color_table */
1320 case GL_COLOR_TABLE_SGI
:
1321 CHECK_EXTENSION(SGI_color_table
);
1322 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
];
1323 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
1324 CHECK_EXTENSION(SGI_color_table
);
1325 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
];
1326 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
1327 CHECK_EXTENSION(SGI_color_table
);
1328 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
];
1330 /* GL_SGI_texture_color_table */
1331 case GL_TEXTURE_COLOR_TABLE_SGI
:
1332 CHECK_EXTENSION(SGI_texture_color_table
);
1333 return ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
;
1335 /* GL_EXT_convolution */
1336 case GL_CONVOLUTION_1D
:
1337 CHECK_EXTENSION(EXT_convolution
);
1338 return ctx
->Pixel
.Convolution1DEnabled
;
1339 case GL_CONVOLUTION_2D
:
1340 CHECK_EXTENSION(EXT_convolution
);
1341 return ctx
->Pixel
.Convolution2DEnabled
;
1342 case GL_SEPARABLE_2D
:
1343 CHECK_EXTENSION(EXT_convolution
);
1344 return ctx
->Pixel
.Separable2DEnabled
;
1346 /* GL_ARB_texture_cube_map */
1347 case GL_TEXTURE_CUBE_MAP_ARB
:
1348 CHECK_EXTENSION(ARB_texture_cube_map
);
1349 return is_texture_enabled(ctx
, TEXTURE_CUBE_BIT
);
1351 /* GL_EXT_secondary_color */
1352 case GL_COLOR_SUM_EXT
:
1353 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
);
1354 return ctx
->Fog
.ColorSumEnabled
;
1356 /* GL_ARB_multisample */
1357 case GL_MULTISAMPLE_ARB
:
1358 return ctx
->Multisample
.Enabled
;
1359 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1360 return ctx
->Multisample
.SampleAlphaToCoverage
;
1361 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1362 return ctx
->Multisample
.SampleAlphaToOne
;
1363 case GL_SAMPLE_COVERAGE_ARB
:
1364 return ctx
->Multisample
.SampleCoverage
;
1365 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1366 return ctx
->Multisample
.SampleCoverageInvert
;
1368 /* GL_IBM_rasterpos_clip */
1369 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1370 CHECK_EXTENSION(IBM_rasterpos_clip
);
1371 return ctx
->Transform
.RasterPositionUnclipped
;
1373 /* GL_NV_point_sprite */
1374 case GL_POINT_SPRITE_NV
:
1375 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
)
1376 return ctx
->Point
.PointSprite
;
1378 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1379 case GL_VERTEX_PROGRAM_ARB
:
1380 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1381 return ctx
->VertexProgram
.Enabled
;
1382 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
1383 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1384 return ctx
->VertexProgram
.PointSizeEnabled
;
1385 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
1386 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1387 return ctx
->VertexProgram
.TwoSideEnabled
;
1389 #if FEATURE_NV_vertex_program
1390 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
1391 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
1392 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
1393 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
1394 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
1395 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
1396 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
1397 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
1398 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
1399 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
1400 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
1401 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
1402 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
1403 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
1404 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
1405 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
1406 CHECK_EXTENSION(NV_vertex_program
);
1408 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
1409 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1410 return (ctx
->Array
.ArrayObj
->VertexAttrib
[n
].Enabled
!= 0);
1412 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
1413 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
1414 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
1415 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
1416 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
1417 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
1418 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
1419 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
1420 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
1421 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
1422 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
1423 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
1424 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
1425 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
1426 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
1427 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
1428 CHECK_EXTENSION(NV_vertex_program
);
1430 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
1431 return ctx
->Eval
.Map1Attrib
[map
];
1433 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
1434 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
1435 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
1436 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
1437 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
1438 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
1439 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
1440 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
1441 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
1442 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
1443 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
1444 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
1445 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
1446 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
1447 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
1448 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
1449 CHECK_EXTENSION(NV_vertex_program
);
1451 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
1452 return ctx
->Eval
.Map2Attrib
[map
];
1454 #endif /* FEATURE_NV_vertex_program */
1456 #if FEATURE_NV_fragment_program
1457 case GL_FRAGMENT_PROGRAM_NV
:
1458 CHECK_EXTENSION(NV_fragment_program
);
1459 return ctx
->FragmentProgram
.Enabled
;
1460 #endif /* FEATURE_NV_fragment_program */
1462 /* GL_NV_texture_rectangle */
1463 case GL_TEXTURE_RECTANGLE_NV
:
1464 CHECK_EXTENSION(NV_texture_rectangle
);
1465 return is_texture_enabled(ctx
, TEXTURE_RECT_BIT
);
1467 /* GL_EXT_stencil_two_side */
1468 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1469 CHECK_EXTENSION(EXT_stencil_two_side
);
1470 return ctx
->Stencil
.TestTwoSide
;
1472 #if FEATURE_ARB_fragment_program
1473 case GL_FRAGMENT_PROGRAM_ARB
:
1474 return ctx
->FragmentProgram
.Enabled
;
1475 #endif /* FEATURE_ARB_fragment_program */
1477 /* GL_EXT_depth_bounds_test */
1478 case GL_DEPTH_BOUNDS_TEST_EXT
:
1479 CHECK_EXTENSION(EXT_depth_bounds_test
);
1480 return ctx
->Depth
.BoundsTest
;
1482 /* GL_ARB_depth_clamp */
1483 case GL_DEPTH_CLAMP
:
1484 CHECK_EXTENSION(ARB_depth_clamp
);
1485 return ctx
->Transform
.DepthClamp
;
1487 #if FEATURE_ATI_fragment_shader
1488 case GL_FRAGMENT_SHADER_ATI
:
1489 CHECK_EXTENSION(ATI_fragment_shader
);
1490 return ctx
->ATIFragmentShader
.Enabled
;
1491 #endif /* FEATURE_ATI_fragment_shader */
1493 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
1494 CHECK_EXTENSION(ARB_seamless_cube_map
);
1495 return ctx
->Texture
.CubeMapSeamless
;
1498 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(0x%x)", (int) cap
);