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 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(0x%x)", \
46 state ? "Enable" : "Disable", CAP); \
52 * Helper to enable/disable client-side state.
55 client_state(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
57 struct gl_array_object
*arrayObj
= ctx
->Array
.ArrayObj
;
63 var
= &arrayObj
->Vertex
.Enabled
;
64 flag
= _NEW_ARRAY_VERTEX
;
67 var
= &arrayObj
->Normal
.Enabled
;
68 flag
= _NEW_ARRAY_NORMAL
;
71 var
= &arrayObj
->Color
.Enabled
;
72 flag
= _NEW_ARRAY_COLOR0
;
75 var
= &arrayObj
->Index
.Enabled
;
76 flag
= _NEW_ARRAY_INDEX
;
78 case GL_TEXTURE_COORD_ARRAY
:
79 var
= &arrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
;
80 flag
= _NEW_ARRAY_TEXCOORD(ctx
->Array
.ActiveTexture
);
82 case GL_EDGE_FLAG_ARRAY
:
83 var
= &arrayObj
->EdgeFlag
.Enabled
;
84 flag
= _NEW_ARRAY_EDGEFLAG
;
86 case GL_FOG_COORDINATE_ARRAY_EXT
:
87 var
= &arrayObj
->FogCoord
.Enabled
;
88 flag
= _NEW_ARRAY_FOGCOORD
;
90 case GL_SECONDARY_COLOR_ARRAY_EXT
:
91 var
= &arrayObj
->SecondaryColor
.Enabled
;
92 flag
= _NEW_ARRAY_COLOR1
;
95 #if FEATURE_point_size_array
96 case GL_POINT_SIZE_ARRAY_OES
:
97 var
= &arrayObj
->PointSize
.Enabled
;
98 flag
= _NEW_ARRAY_POINT_SIZE
;
102 #if FEATURE_NV_vertex_program
103 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
104 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
105 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
106 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
107 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
108 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
109 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
110 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
111 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
112 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
113 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
114 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
115 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
116 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
117 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
118 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
119 CHECK_EXTENSION(NV_vertex_program
, cap
);
121 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
122 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
123 var
= &arrayObj
->VertexAttrib
[n
].Enabled
;
124 flag
= _NEW_ARRAY_ATTRIB(n
);
127 #endif /* FEATURE_NV_vertex_program */
130 _mesa_error( ctx
, GL_INVALID_ENUM
,
131 "glEnable/DisableClientState(0x%x)", cap
);
138 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
139 ctx
->Array
.NewState
|= flag
;
141 _ae_invalidate_state(ctx
, _NEW_ARRAY
);
146 ctx
->Array
.ArrayObj
->_Enabled
|= flag
;
148 ctx
->Array
.ArrayObj
->_Enabled
&= ~flag
;
150 if (ctx
->Driver
.Enable
) {
151 ctx
->Driver
.Enable( ctx
, cap
, state
);
157 * Enable GL capability.
158 * \param cap state to enable/disable.
160 * Get's the current context, assures that we're outside glBegin()/glEnd() and
161 * calls client_state().
164 _mesa_EnableClientState( GLenum cap
)
166 GET_CURRENT_CONTEXT(ctx
);
167 ASSERT_OUTSIDE_BEGIN_END(ctx
);
168 client_state( ctx
, cap
, GL_TRUE
);
173 * Disable GL capability.
174 * \param cap state to enable/disable.
176 * Get's the current context, assures that we're outside glBegin()/glEnd() and
177 * calls client_state().
180 _mesa_DisableClientState( GLenum cap
)
182 GET_CURRENT_CONTEXT(ctx
);
183 ASSERT_OUTSIDE_BEGIN_END(ctx
);
184 client_state( ctx
, cap
, GL_FALSE
);
188 #undef CHECK_EXTENSION
189 #define CHECK_EXTENSION(EXTNAME, CAP) \
190 if (!ctx->Extensions.EXTNAME) { \
191 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
192 state ? "Enable" : "Disable", CAP); \
196 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
197 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
198 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(0x%x)", \
199 state ? "Enable" : "Disable", CAP); \
206 * Return pointer to current texture unit for setting/getting coordinate
208 * Note that we'll set GL_INVALID_OPERATION if the active texture unit is
209 * higher than the number of supported coordinate units. And we'll return NULL.
211 static struct gl_texture_unit
*
212 get_texcoord_unit(GLcontext
*ctx
)
214 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
215 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnable/Disable(texcoord unit)");
219 return &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
225 * Helper function to enable or disable a texture target.
226 * \param bit one of the TEXTURE_x_BIT values
227 * \return GL_TRUE if state is changing or GL_FALSE if no change
230 enable_texture(GLcontext
*ctx
, GLboolean state
, GLbitfield texBit
)
232 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
233 const GLbitfield newenabled
= state
234 ? (texUnit
->Enabled
| texBit
) : (texUnit
->Enabled
& ~texBit
);
236 if (texUnit
->Enabled
== newenabled
)
239 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
240 texUnit
->Enabled
= newenabled
;
246 * Helper function to enable or disable state.
248 * \param ctx GL context.
249 * \param cap the state to enable/disable
250 * \param state whether to enable or disable the specified capability.
252 * Updates the current context and flushes the vertices as needed. For
253 * capabilities associated with extensions it verifies that those extensions
254 * are effectivly present before updating. Notifies the driver via
255 * dd_function_table::Enable.
258 _mesa_set_enable(GLcontext
*ctx
, GLenum cap
, GLboolean state
)
260 if (MESA_VERBOSE
& VERBOSE_API
)
261 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
262 state
? "glEnable" : "glDisable",
263 _mesa_lookup_enum_by_nr(cap
),
268 if (ctx
->Color
.AlphaEnabled
== state
)
270 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
271 ctx
->Color
.AlphaEnabled
= state
;
274 if (ctx
->Eval
.AutoNormal
== state
)
276 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
277 ctx
->Eval
.AutoNormal
= state
;
281 GLbitfield newEnabled
= state
* ((1 << ctx
->Const
.MaxDrawBuffers
) - 1);
282 if (newEnabled
!= ctx
->Color
.BlendEnabled
) {
283 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
284 ctx
->Color
.BlendEnabled
= newEnabled
;
296 const GLuint p
= cap
- GL_CLIP_PLANE0
;
298 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
)) == ((GLuint
) state
<< p
))
301 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
304 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
306 if (_math_matrix_is_dirty(ctx
->ProjectionMatrixStack
.Top
))
307 _math_matrix_analyse( ctx
->ProjectionMatrixStack
.Top
);
309 /* This derived state also calculated in clip.c and
310 * from _mesa_update_state() on changes to EyeUserPlane
311 * and ctx->ProjectionMatrix respectively.
313 _mesa_transform_vector( ctx
->Transform
._ClipUserPlane
[p
],
314 ctx
->Transform
.EyeUserPlane
[p
],
315 ctx
->ProjectionMatrixStack
.Top
->inv
);
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
;
340 case GL_CULL_VERTEX_EXT
:
341 CHECK_EXTENSION(EXT_cull_vertex
, cap
);
342 if (ctx
->Transform
.CullVertexFlag
== state
)
344 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
345 ctx
->Transform
.CullVertexFlag
= state
;
348 if (ctx
->Depth
.Test
== state
)
350 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
351 ctx
->Depth
.Test
= state
;
355 state
= GL_FALSE
; /* MESA_NO_DITHER env var */
357 if (ctx
->Color
.DitherFlag
== state
)
359 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
360 ctx
->Color
.DitherFlag
= state
;
363 if (ctx
->Fog
.Enabled
== state
)
365 FLUSH_VERTICES(ctx
, _NEW_FOG
);
366 ctx
->Fog
.Enabled
= state
;
369 CHECK_EXTENSION(EXT_histogram
, cap
);
370 if (ctx
->Pixel
.HistogramEnabled
== state
)
372 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
373 ctx
->Pixel
.HistogramEnabled
= state
;
383 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
385 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
386 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
388 insert_at_tail(&ctx
->Light
.EnabledList
,
389 &ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
392 remove_from_list(&ctx
->Light
.Light
[cap
-GL_LIGHT0
]);
396 if (ctx
->Light
.Enabled
== state
)
398 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
399 ctx
->Light
.Enabled
= state
;
400 if (ctx
->Light
.Enabled
&& ctx
->Light
.Model
.TwoSide
)
401 ctx
->_TriangleCaps
|= DD_TRI_LIGHT_TWOSIDE
;
403 ctx
->_TriangleCaps
&= ~DD_TRI_LIGHT_TWOSIDE
;
406 if (ctx
->Line
.SmoothFlag
== state
)
408 FLUSH_VERTICES(ctx
, _NEW_LINE
);
409 ctx
->Line
.SmoothFlag
= state
;
410 ctx
->_TriangleCaps
^= DD_LINE_SMOOTH
;
412 case GL_LINE_STIPPLE
:
413 if (ctx
->Line
.StippleFlag
== state
)
415 FLUSH_VERTICES(ctx
, _NEW_LINE
);
416 ctx
->Line
.StippleFlag
= state
;
417 ctx
->_TriangleCaps
^= DD_LINE_STIPPLE
;
419 case GL_INDEX_LOGIC_OP
:
420 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
422 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
423 ctx
->Color
.IndexLogicOpEnabled
= state
;
425 case GL_COLOR_LOGIC_OP
:
426 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
428 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
429 ctx
->Color
.ColorLogicOpEnabled
= state
;
431 case GL_MAP1_COLOR_4
:
432 if (ctx
->Eval
.Map1Color4
== state
)
434 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
435 ctx
->Eval
.Map1Color4
= state
;
438 if (ctx
->Eval
.Map1Index
== state
)
440 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
441 ctx
->Eval
.Map1Index
= state
;
444 if (ctx
->Eval
.Map1Normal
== state
)
446 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
447 ctx
->Eval
.Map1Normal
= state
;
449 case GL_MAP1_TEXTURE_COORD_1
:
450 if (ctx
->Eval
.Map1TextureCoord1
== state
)
452 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
453 ctx
->Eval
.Map1TextureCoord1
= state
;
455 case GL_MAP1_TEXTURE_COORD_2
:
456 if (ctx
->Eval
.Map1TextureCoord2
== state
)
458 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
459 ctx
->Eval
.Map1TextureCoord2
= state
;
461 case GL_MAP1_TEXTURE_COORD_3
:
462 if (ctx
->Eval
.Map1TextureCoord3
== state
)
464 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
465 ctx
->Eval
.Map1TextureCoord3
= state
;
467 case GL_MAP1_TEXTURE_COORD_4
:
468 if (ctx
->Eval
.Map1TextureCoord4
== state
)
470 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
471 ctx
->Eval
.Map1TextureCoord4
= state
;
473 case GL_MAP1_VERTEX_3
:
474 if (ctx
->Eval
.Map1Vertex3
== state
)
476 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
477 ctx
->Eval
.Map1Vertex3
= state
;
479 case GL_MAP1_VERTEX_4
:
480 if (ctx
->Eval
.Map1Vertex4
== state
)
482 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
483 ctx
->Eval
.Map1Vertex4
= state
;
485 case GL_MAP2_COLOR_4
:
486 if (ctx
->Eval
.Map2Color4
== state
)
488 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
489 ctx
->Eval
.Map2Color4
= state
;
492 if (ctx
->Eval
.Map2Index
== state
)
494 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
495 ctx
->Eval
.Map2Index
= state
;
498 if (ctx
->Eval
.Map2Normal
== state
)
500 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
501 ctx
->Eval
.Map2Normal
= state
;
503 case GL_MAP2_TEXTURE_COORD_1
:
504 if (ctx
->Eval
.Map2TextureCoord1
== state
)
506 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
507 ctx
->Eval
.Map2TextureCoord1
= state
;
509 case GL_MAP2_TEXTURE_COORD_2
:
510 if (ctx
->Eval
.Map2TextureCoord2
== state
)
512 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
513 ctx
->Eval
.Map2TextureCoord2
= state
;
515 case GL_MAP2_TEXTURE_COORD_3
:
516 if (ctx
->Eval
.Map2TextureCoord3
== state
)
518 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
519 ctx
->Eval
.Map2TextureCoord3
= state
;
521 case GL_MAP2_TEXTURE_COORD_4
:
522 if (ctx
->Eval
.Map2TextureCoord4
== state
)
524 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
525 ctx
->Eval
.Map2TextureCoord4
= state
;
527 case GL_MAP2_VERTEX_3
:
528 if (ctx
->Eval
.Map2Vertex3
== state
)
530 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
531 ctx
->Eval
.Map2Vertex3
= state
;
533 case GL_MAP2_VERTEX_4
:
534 if (ctx
->Eval
.Map2Vertex4
== state
)
536 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
537 ctx
->Eval
.Map2Vertex4
= state
;
540 if (ctx
->Pixel
.MinMaxEnabled
== state
)
542 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
543 ctx
->Pixel
.MinMaxEnabled
= state
;
546 if (ctx
->Transform
.Normalize
== state
)
548 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
549 ctx
->Transform
.Normalize
= state
;
551 case GL_POINT_SMOOTH
:
552 if (ctx
->Point
.SmoothFlag
== state
)
554 FLUSH_VERTICES(ctx
, _NEW_POINT
);
555 ctx
->Point
.SmoothFlag
= state
;
556 ctx
->_TriangleCaps
^= DD_POINT_SMOOTH
;
558 case GL_POLYGON_SMOOTH
:
559 if (ctx
->Polygon
.SmoothFlag
== state
)
561 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
562 ctx
->Polygon
.SmoothFlag
= state
;
563 ctx
->_TriangleCaps
^= DD_TRI_SMOOTH
;
565 case GL_POLYGON_STIPPLE
:
566 if (ctx
->Polygon
.StippleFlag
== state
)
568 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
569 ctx
->Polygon
.StippleFlag
= state
;
570 ctx
->_TriangleCaps
^= DD_TRI_STIPPLE
;
572 case GL_POLYGON_OFFSET_POINT
:
573 if (ctx
->Polygon
.OffsetPoint
== state
)
575 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
576 ctx
->Polygon
.OffsetPoint
= state
;
578 case GL_POLYGON_OFFSET_LINE
:
579 if (ctx
->Polygon
.OffsetLine
== state
)
581 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
582 ctx
->Polygon
.OffsetLine
= state
;
584 case GL_POLYGON_OFFSET_FILL
:
585 /*case GL_POLYGON_OFFSET_EXT:*/
586 if (ctx
->Polygon
.OffsetFill
== state
)
588 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
589 ctx
->Polygon
.OffsetFill
= state
;
591 case GL_RESCALE_NORMAL_EXT
:
592 if (ctx
->Transform
.RescaleNormals
== state
)
594 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
595 ctx
->Transform
.RescaleNormals
= state
;
597 case GL_SCISSOR_TEST
:
598 if (ctx
->Scissor
.Enabled
== state
)
600 FLUSH_VERTICES(ctx
, _NEW_SCISSOR
);
601 ctx
->Scissor
.Enabled
= state
;
603 case GL_SHARED_TEXTURE_PALETTE_EXT
:
604 if (ctx
->Texture
.SharedPalette
== state
)
606 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
607 ctx
->Texture
.SharedPalette
= state
;
609 case GL_STENCIL_TEST
:
610 if (ctx
->Stencil
.Enabled
== state
)
612 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
613 ctx
->Stencil
.Enabled
= state
;
616 if (!enable_texture(ctx
, state
, TEXTURE_1D_BIT
)) {
621 if (!enable_texture(ctx
, state
, TEXTURE_2D_BIT
)) {
626 if (!enable_texture(ctx
, state
, TEXTURE_3D_BIT
)) {
630 case GL_TEXTURE_GEN_Q
:
632 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
634 GLuint newenabled
= texUnit
->TexGenEnabled
& ~Q_BIT
;
637 if (texUnit
->TexGenEnabled
== newenabled
)
639 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
640 texUnit
->TexGenEnabled
= newenabled
;
644 case GL_TEXTURE_GEN_R
:
646 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
648 GLuint newenabled
= texUnit
->TexGenEnabled
& ~R_BIT
;
651 if (texUnit
->TexGenEnabled
== newenabled
)
653 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
654 texUnit
->TexGenEnabled
= newenabled
;
658 case GL_TEXTURE_GEN_S
:
660 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
662 GLuint newenabled
= texUnit
->TexGenEnabled
& ~S_BIT
;
665 if (texUnit
->TexGenEnabled
== newenabled
)
667 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
668 texUnit
->TexGenEnabled
= newenabled
;
672 case GL_TEXTURE_GEN_T
:
674 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
676 GLuint newenabled
= texUnit
->TexGenEnabled
& ~T_BIT
;
679 if (texUnit
->TexGenEnabled
== newenabled
)
681 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
682 texUnit
->TexGenEnabled
= newenabled
;
690 case GL_VERTEX_ARRAY
:
691 case GL_NORMAL_ARRAY
:
694 case GL_TEXTURE_COORD_ARRAY
:
695 case GL_EDGE_FLAG_ARRAY
:
696 case GL_FOG_COORDINATE_ARRAY_EXT
:
697 case GL_SECONDARY_COLOR_ARRAY_EXT
:
698 case GL_POINT_SIZE_ARRAY_OES
:
699 client_state( ctx
, cap
, state
);
702 /* GL_SGI_color_table */
703 case GL_COLOR_TABLE_SGI
:
704 CHECK_EXTENSION(SGI_color_table
, cap
);
705 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] == state
)
707 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
708 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
] = state
;
710 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
711 CHECK_EXTENSION(SGI_color_table
, cap
);
712 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] == state
)
714 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
715 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
] = state
;
717 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
718 CHECK_EXTENSION(SGI_color_table
, cap
);
719 if (ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] == state
)
721 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
722 ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
] = state
;
724 case GL_TEXTURE_COLOR_TABLE_SGI
:
725 CHECK_EXTENSION(SGI_texture_color_table
, cap
);
726 if (ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
== state
)
728 FLUSH_VERTICES(ctx
, _NEW_TEXTURE
);
729 ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
= state
;
732 /* GL_EXT_convolution */
733 case GL_CONVOLUTION_1D
:
734 CHECK_EXTENSION(EXT_convolution
, cap
);
735 if (ctx
->Pixel
.Convolution1DEnabled
== state
)
737 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
738 ctx
->Pixel
.Convolution1DEnabled
= state
;
740 case GL_CONVOLUTION_2D
:
741 CHECK_EXTENSION(EXT_convolution
, cap
);
742 if (ctx
->Pixel
.Convolution2DEnabled
== state
)
744 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
745 ctx
->Pixel
.Convolution2DEnabled
= state
;
747 case GL_SEPARABLE_2D
:
748 CHECK_EXTENSION(EXT_convolution
, cap
);
749 if (ctx
->Pixel
.Separable2DEnabled
== state
)
751 FLUSH_VERTICES(ctx
, _NEW_PIXEL
);
752 ctx
->Pixel
.Separable2DEnabled
= state
;
755 /* GL_ARB_texture_cube_map */
756 case GL_TEXTURE_CUBE_MAP_ARB
:
757 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
758 if (!enable_texture(ctx
, state
, TEXTURE_CUBE_BIT
)) {
763 /* GL_EXT_secondary_color */
764 case GL_COLOR_SUM_EXT
:
765 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
, cap
);
766 if (ctx
->Fog
.ColorSumEnabled
== state
)
768 FLUSH_VERTICES(ctx
, _NEW_FOG
);
769 ctx
->Fog
.ColorSumEnabled
= state
;
772 /* GL_ARB_multisample */
773 case GL_MULTISAMPLE_ARB
:
774 if (ctx
->Multisample
.Enabled
== state
)
776 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
777 ctx
->Multisample
.Enabled
= state
;
779 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
780 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
782 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
783 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
785 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
786 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
788 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
789 ctx
->Multisample
.SampleAlphaToOne
= state
;
791 case GL_SAMPLE_COVERAGE_ARB
:
792 if (ctx
->Multisample
.SampleCoverage
== state
)
794 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
795 ctx
->Multisample
.SampleCoverage
= state
;
797 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
798 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
800 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
801 ctx
->Multisample
.SampleCoverageInvert
= state
;
804 /* GL_IBM_rasterpos_clip */
805 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
806 CHECK_EXTENSION(IBM_rasterpos_clip
, cap
);
807 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
809 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
810 ctx
->Transform
.RasterPositionUnclipped
= state
;
813 /* GL_NV_point_sprite */
814 case GL_POINT_SPRITE_NV
:
815 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
816 if (ctx
->Point
.PointSprite
== state
)
818 FLUSH_VERTICES(ctx
, _NEW_POINT
);
819 ctx
->Point
.PointSprite
= state
;
822 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
823 case GL_VERTEX_PROGRAM_ARB
:
824 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
825 if (ctx
->VertexProgram
.Enabled
== state
)
827 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
828 ctx
->VertexProgram
.Enabled
= state
;
830 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
831 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
832 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
834 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
835 ctx
->VertexProgram
.PointSizeEnabled
= state
;
837 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
838 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
, cap
);
839 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
841 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
842 ctx
->VertexProgram
.TwoSideEnabled
= state
;
845 #if FEATURE_NV_vertex_program
846 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
847 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
848 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
849 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
850 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
851 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
852 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
853 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
854 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
855 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
856 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
857 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
858 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
859 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
860 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
861 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
862 CHECK_EXTENSION(NV_vertex_program
, cap
);
864 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
865 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
866 ctx
->Eval
.Map1Attrib
[map
] = state
;
869 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
870 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
871 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
872 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
873 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
874 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
875 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
876 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
877 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
878 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
879 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
880 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
881 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
882 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
883 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
884 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
885 CHECK_EXTENSION(NV_vertex_program
, cap
);
887 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
888 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
889 ctx
->Eval
.Map2Attrib
[map
] = state
;
892 #endif /* FEATURE_NV_vertex_program */
894 #if FEATURE_NV_fragment_program
895 case GL_FRAGMENT_PROGRAM_NV
:
896 CHECK_EXTENSION(NV_fragment_program
, cap
);
897 if (ctx
->FragmentProgram
.Enabled
== state
)
899 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
900 ctx
->FragmentProgram
.Enabled
= state
;
902 #endif /* FEATURE_NV_fragment_program */
904 /* GL_NV_texture_rectangle */
905 case GL_TEXTURE_RECTANGLE_NV
:
906 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
907 if (!enable_texture(ctx
, state
, TEXTURE_RECT_BIT
)) {
912 /* GL_EXT_stencil_two_side */
913 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
914 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
915 if (ctx
->Stencil
.TestTwoSide
== state
)
917 FLUSH_VERTICES(ctx
, _NEW_STENCIL
);
918 ctx
->Stencil
.TestTwoSide
= state
;
920 ctx
->Stencil
._BackFace
= 2;
921 ctx
->_TriangleCaps
|= DD_TRI_TWOSTENCIL
;
923 ctx
->Stencil
._BackFace
= 1;
924 ctx
->_TriangleCaps
&= ~DD_TRI_TWOSTENCIL
;
928 #if FEATURE_ARB_fragment_program
929 case GL_FRAGMENT_PROGRAM_ARB
:
930 CHECK_EXTENSION(ARB_fragment_program
, cap
);
931 if (ctx
->FragmentProgram
.Enabled
== state
)
933 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
934 ctx
->FragmentProgram
.Enabled
= state
;
936 #endif /* FEATURE_ARB_fragment_program */
938 /* GL_EXT_depth_bounds_test */
939 case GL_DEPTH_BOUNDS_TEST_EXT
:
940 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
941 if (ctx
->Depth
.BoundsTest
== state
)
943 FLUSH_VERTICES(ctx
, _NEW_DEPTH
);
944 ctx
->Depth
.BoundsTest
= state
;
948 if (ctx
->Transform
.DepthClamp
== state
)
950 CHECK_EXTENSION(ARB_depth_clamp
, cap
);
951 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
952 ctx
->Transform
.DepthClamp
= state
;
955 #if FEATURE_ATI_fragment_shader
956 case GL_FRAGMENT_SHADER_ATI
:
957 CHECK_EXTENSION(ATI_fragment_shader
, cap
);
958 if (ctx
->ATIFragmentShader
.Enabled
== state
)
960 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
961 ctx
->ATIFragmentShader
.Enabled
= state
;
965 /* GL_MESA_texture_array */
966 case GL_TEXTURE_1D_ARRAY_EXT
:
967 CHECK_EXTENSION(MESA_texture_array
, cap
);
968 if (!enable_texture(ctx
, state
, TEXTURE_1D_ARRAY_BIT
)) {
973 case GL_TEXTURE_2D_ARRAY_EXT
:
974 CHECK_EXTENSION(MESA_texture_array
, cap
);
975 if (!enable_texture(ctx
, state
, TEXTURE_2D_ARRAY_BIT
)) {
980 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
981 CHECK_EXTENSION(ARB_seamless_cube_map
, cap
);
982 ctx
->Texture
.CubeMapSeamless
= state
;
985 #if FEATURE_EXT_transform_feedback
986 case GL_RASTERIZER_DISCARD
:
987 CHECK_EXTENSION(EXT_transform_feedback
, cap
);
988 if (ctx
->TransformFeedback
.RasterDiscard
!= state
) {
989 ctx
->TransformFeedback
.RasterDiscard
= state
;
990 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
996 _mesa_error(ctx
, GL_INVALID_ENUM
,
997 "%s(0x%x)", state
? "glEnable" : "glDisable", cap
);
1001 if (ctx
->Driver
.Enable
) {
1002 ctx
->Driver
.Enable( ctx
, cap
, state
);
1008 * Enable GL capability. Called by glEnable()
1009 * \param cap state to enable.
1012 _mesa_Enable( GLenum cap
)
1014 GET_CURRENT_CONTEXT(ctx
);
1015 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1017 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
1022 * Disable GL capability. Called by glDisable()
1023 * \param cap state to disable.
1026 _mesa_Disable( GLenum cap
)
1028 GET_CURRENT_CONTEXT(ctx
);
1029 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1031 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
1037 * Enable/disable an indexed state var.
1040 _mesa_set_enablei(GLcontext
*ctx
, GLenum cap
, GLuint index
, GLboolean state
)
1042 ASSERT(state
== 0 || state
== 1);
1045 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
1048 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1049 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
1050 state
? "glEnableIndexed" : "glDisableIndexed", index
);
1053 if (((ctx
->Color
.BlendEnabled
>> index
) & 1) != state
) {
1054 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
1056 ctx
->Color
.BlendEnabled
|= (1 << index
);
1058 ctx
->Color
.BlendEnabled
&= ~(1 << index
);
1067 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(cap=%s)",
1068 state
? "glEnablei" : "glDisablei",
1069 _mesa_lookup_enum_by_nr(cap
));
1074 _mesa_DisableIndexed( GLenum cap
, GLuint index
)
1076 GET_CURRENT_CONTEXT(ctx
);
1077 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1078 _mesa_set_enablei(ctx
, cap
, index
, GL_FALSE
);
1083 _mesa_EnableIndexed( GLenum cap
, GLuint index
)
1085 GET_CURRENT_CONTEXT(ctx
);
1086 ASSERT_OUTSIDE_BEGIN_END(ctx
);
1087 _mesa_set_enablei(ctx
, cap
, index
, GL_TRUE
);
1091 GLboolean GLAPIENTRY
1092 _mesa_IsEnabledIndexed( GLenum cap
, GLuint index
)
1094 GET_CURRENT_CONTEXT(ctx
);
1097 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1098 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1102 return (ctx
->Color
.BlendEnabled
>> index
) & 1;
1104 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabledIndexed(cap=%s)",
1105 _mesa_lookup_enum_by_nr(cap
));
1113 #undef CHECK_EXTENSION
1114 #define CHECK_EXTENSION(EXTNAME) \
1115 if (!ctx->Extensions.EXTNAME) { \
1116 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1120 #undef CHECK_EXTENSION2
1121 #define CHECK_EXTENSION2(EXT1, EXT2) \
1122 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1123 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled"); \
1129 * Helper function to determine whether a texture target is enabled.
1132 is_texture_enabled(GLcontext
*ctx
, GLbitfield bit
)
1134 const struct gl_texture_unit
*const texUnit
=
1135 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1136 return (texUnit
->Enabled
& bit
) ? GL_TRUE
: GL_FALSE
;
1141 * Return simple enable/disable state.
1143 * \param cap state variable to query.
1145 * Returns the state of the specified capability from the current GL context.
1146 * For the capabilities associated with extensions verifies that those
1147 * extensions are effectively present before reporting.
1149 GLboolean GLAPIENTRY
1150 _mesa_IsEnabled( GLenum cap
)
1152 GET_CURRENT_CONTEXT(ctx
);
1155 return ctx
->Color
.AlphaEnabled
;
1156 case GL_AUTO_NORMAL
:
1157 return ctx
->Eval
.AutoNormal
;
1159 return ctx
->Color
.BlendEnabled
& 1; /* return state for buffer[0] */
1160 case GL_CLIP_PLANE0
:
1161 case GL_CLIP_PLANE1
:
1162 case GL_CLIP_PLANE2
:
1163 case GL_CLIP_PLANE3
:
1164 case GL_CLIP_PLANE4
:
1165 case GL_CLIP_PLANE5
:
1166 return (ctx
->Transform
.ClipPlanesEnabled
>> (cap
- GL_CLIP_PLANE0
)) & 1;
1167 case GL_COLOR_MATERIAL
:
1168 return ctx
->Light
.ColorMaterialEnabled
;
1170 return ctx
->Polygon
.CullFlag
;
1172 return ctx
->Depth
.Test
;
1174 return ctx
->Color
.DitherFlag
;
1176 return ctx
->Fog
.Enabled
;
1178 return ctx
->Light
.Enabled
;
1187 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1188 case GL_LINE_SMOOTH
:
1189 return ctx
->Line
.SmoothFlag
;
1190 case GL_LINE_STIPPLE
:
1191 return ctx
->Line
.StippleFlag
;
1192 case GL_INDEX_LOGIC_OP
:
1193 return ctx
->Color
.IndexLogicOpEnabled
;
1194 case GL_COLOR_LOGIC_OP
:
1195 return ctx
->Color
.ColorLogicOpEnabled
;
1196 case GL_MAP1_COLOR_4
:
1197 return ctx
->Eval
.Map1Color4
;
1199 return ctx
->Eval
.Map1Index
;
1200 case GL_MAP1_NORMAL
:
1201 return ctx
->Eval
.Map1Normal
;
1202 case GL_MAP1_TEXTURE_COORD_1
:
1203 return ctx
->Eval
.Map1TextureCoord1
;
1204 case GL_MAP1_TEXTURE_COORD_2
:
1205 return ctx
->Eval
.Map1TextureCoord2
;
1206 case GL_MAP1_TEXTURE_COORD_3
:
1207 return ctx
->Eval
.Map1TextureCoord3
;
1208 case GL_MAP1_TEXTURE_COORD_4
:
1209 return ctx
->Eval
.Map1TextureCoord4
;
1210 case GL_MAP1_VERTEX_3
:
1211 return ctx
->Eval
.Map1Vertex3
;
1212 case GL_MAP1_VERTEX_4
:
1213 return ctx
->Eval
.Map1Vertex4
;
1214 case GL_MAP2_COLOR_4
:
1215 return ctx
->Eval
.Map2Color4
;
1217 return ctx
->Eval
.Map2Index
;
1218 case GL_MAP2_NORMAL
:
1219 return ctx
->Eval
.Map2Normal
;
1220 case GL_MAP2_TEXTURE_COORD_1
:
1221 return ctx
->Eval
.Map2TextureCoord1
;
1222 case GL_MAP2_TEXTURE_COORD_2
:
1223 return ctx
->Eval
.Map2TextureCoord2
;
1224 case GL_MAP2_TEXTURE_COORD_3
:
1225 return ctx
->Eval
.Map2TextureCoord3
;
1226 case GL_MAP2_TEXTURE_COORD_4
:
1227 return ctx
->Eval
.Map2TextureCoord4
;
1228 case GL_MAP2_VERTEX_3
:
1229 return ctx
->Eval
.Map2Vertex3
;
1230 case GL_MAP2_VERTEX_4
:
1231 return ctx
->Eval
.Map2Vertex4
;
1233 return ctx
->Transform
.Normalize
;
1234 case GL_POINT_SMOOTH
:
1235 return ctx
->Point
.SmoothFlag
;
1236 case GL_POLYGON_SMOOTH
:
1237 return ctx
->Polygon
.SmoothFlag
;
1238 case GL_POLYGON_STIPPLE
:
1239 return ctx
->Polygon
.StippleFlag
;
1240 case GL_POLYGON_OFFSET_POINT
:
1241 return ctx
->Polygon
.OffsetPoint
;
1242 case GL_POLYGON_OFFSET_LINE
:
1243 return ctx
->Polygon
.OffsetLine
;
1244 case GL_POLYGON_OFFSET_FILL
:
1245 /*case GL_POLYGON_OFFSET_EXT:*/
1246 return ctx
->Polygon
.OffsetFill
;
1247 case GL_RESCALE_NORMAL_EXT
:
1248 return ctx
->Transform
.RescaleNormals
;
1249 case GL_SCISSOR_TEST
:
1250 return ctx
->Scissor
.Enabled
;
1251 case GL_SHARED_TEXTURE_PALETTE_EXT
:
1252 return ctx
->Texture
.SharedPalette
;
1253 case GL_STENCIL_TEST
:
1254 return ctx
->Stencil
.Enabled
;
1256 return is_texture_enabled(ctx
, TEXTURE_1D_BIT
);
1258 return is_texture_enabled(ctx
, TEXTURE_2D_BIT
);
1260 return is_texture_enabled(ctx
, TEXTURE_3D_BIT
);
1261 case GL_TEXTURE_GEN_Q
:
1263 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1265 return (texUnit
->TexGenEnabled
& Q_BIT
) ? GL_TRUE
: GL_FALSE
;
1269 case GL_TEXTURE_GEN_R
:
1271 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1273 return (texUnit
->TexGenEnabled
& R_BIT
) ? GL_TRUE
: GL_FALSE
;
1277 case GL_TEXTURE_GEN_S
:
1279 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1281 return (texUnit
->TexGenEnabled
& S_BIT
) ? GL_TRUE
: GL_FALSE
;
1285 case GL_TEXTURE_GEN_T
:
1287 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1289 return (texUnit
->TexGenEnabled
& T_BIT
) ? GL_TRUE
: GL_FALSE
;
1297 case GL_VERTEX_ARRAY
:
1298 return (ctx
->Array
.ArrayObj
->Vertex
.Enabled
!= 0);
1299 case GL_NORMAL_ARRAY
:
1300 return (ctx
->Array
.ArrayObj
->Normal
.Enabled
!= 0);
1301 case GL_COLOR_ARRAY
:
1302 return (ctx
->Array
.ArrayObj
->Color
.Enabled
!= 0);
1303 case GL_INDEX_ARRAY
:
1304 return (ctx
->Array
.ArrayObj
->Index
.Enabled
!= 0);
1305 case GL_TEXTURE_COORD_ARRAY
:
1306 return (ctx
->Array
.ArrayObj
->TexCoord
[ctx
->Array
.ActiveTexture
].Enabled
!= 0);
1307 case GL_EDGE_FLAG_ARRAY
:
1308 return (ctx
->Array
.ArrayObj
->EdgeFlag
.Enabled
!= 0);
1309 case GL_FOG_COORDINATE_ARRAY_EXT
:
1310 CHECK_EXTENSION(EXT_fog_coord
);
1311 return (ctx
->Array
.ArrayObj
->FogCoord
.Enabled
!= 0);
1312 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1313 CHECK_EXTENSION(EXT_secondary_color
);
1314 return (ctx
->Array
.ArrayObj
->SecondaryColor
.Enabled
!= 0);
1315 #if FEATURE_point_size_array
1316 case GL_POINT_SIZE_ARRAY_OES
:
1317 return (ctx
->Array
.ArrayObj
->PointSize
.Enabled
!= 0);
1320 /* GL_EXT_histogram */
1322 CHECK_EXTENSION(EXT_histogram
);
1323 return ctx
->Pixel
.HistogramEnabled
;
1325 CHECK_EXTENSION(EXT_histogram
);
1326 return ctx
->Pixel
.MinMaxEnabled
;
1328 /* GL_SGI_color_table */
1329 case GL_COLOR_TABLE_SGI
:
1330 CHECK_EXTENSION(SGI_color_table
);
1331 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_PRECONVOLUTION
];
1332 case GL_POST_CONVOLUTION_COLOR_TABLE_SGI
:
1333 CHECK_EXTENSION(SGI_color_table
);
1334 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCONVOLUTION
];
1335 case GL_POST_COLOR_MATRIX_COLOR_TABLE_SGI
:
1336 CHECK_EXTENSION(SGI_color_table
);
1337 return ctx
->Pixel
.ColorTableEnabled
[COLORTABLE_POSTCOLORMATRIX
];
1339 /* GL_SGI_texture_color_table */
1340 case GL_TEXTURE_COLOR_TABLE_SGI
:
1341 CHECK_EXTENSION(SGI_texture_color_table
);
1342 return ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
].ColorTableEnabled
;
1344 /* GL_EXT_convolution */
1345 case GL_CONVOLUTION_1D
:
1346 CHECK_EXTENSION(EXT_convolution
);
1347 return ctx
->Pixel
.Convolution1DEnabled
;
1348 case GL_CONVOLUTION_2D
:
1349 CHECK_EXTENSION(EXT_convolution
);
1350 return ctx
->Pixel
.Convolution2DEnabled
;
1351 case GL_SEPARABLE_2D
:
1352 CHECK_EXTENSION(EXT_convolution
);
1353 return ctx
->Pixel
.Separable2DEnabled
;
1355 /* GL_ARB_texture_cube_map */
1356 case GL_TEXTURE_CUBE_MAP_ARB
:
1357 CHECK_EXTENSION(ARB_texture_cube_map
);
1358 return is_texture_enabled(ctx
, TEXTURE_CUBE_BIT
);
1360 /* GL_EXT_secondary_color */
1361 case GL_COLOR_SUM_EXT
:
1362 CHECK_EXTENSION2(EXT_secondary_color
, ARB_vertex_program
);
1363 return ctx
->Fog
.ColorSumEnabled
;
1365 /* GL_ARB_multisample */
1366 case GL_MULTISAMPLE_ARB
:
1367 return ctx
->Multisample
.Enabled
;
1368 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1369 return ctx
->Multisample
.SampleAlphaToCoverage
;
1370 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1371 return ctx
->Multisample
.SampleAlphaToOne
;
1372 case GL_SAMPLE_COVERAGE_ARB
:
1373 return ctx
->Multisample
.SampleCoverage
;
1374 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1375 return ctx
->Multisample
.SampleCoverageInvert
;
1377 /* GL_IBM_rasterpos_clip */
1378 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1379 CHECK_EXTENSION(IBM_rasterpos_clip
);
1380 return ctx
->Transform
.RasterPositionUnclipped
;
1382 /* GL_NV_point_sprite */
1383 case GL_POINT_SPRITE_NV
:
1384 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
)
1385 return ctx
->Point
.PointSprite
;
1387 #if FEATURE_NV_vertex_program || FEATURE_ARB_vertex_program
1388 case GL_VERTEX_PROGRAM_ARB
:
1389 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1390 return ctx
->VertexProgram
.Enabled
;
1391 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
1392 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1393 return ctx
->VertexProgram
.PointSizeEnabled
;
1394 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
1395 CHECK_EXTENSION2(ARB_vertex_program
, NV_vertex_program
);
1396 return ctx
->VertexProgram
.TwoSideEnabled
;
1398 #if FEATURE_NV_vertex_program
1399 case GL_VERTEX_ATTRIB_ARRAY0_NV
:
1400 case GL_VERTEX_ATTRIB_ARRAY1_NV
:
1401 case GL_VERTEX_ATTRIB_ARRAY2_NV
:
1402 case GL_VERTEX_ATTRIB_ARRAY3_NV
:
1403 case GL_VERTEX_ATTRIB_ARRAY4_NV
:
1404 case GL_VERTEX_ATTRIB_ARRAY5_NV
:
1405 case GL_VERTEX_ATTRIB_ARRAY6_NV
:
1406 case GL_VERTEX_ATTRIB_ARRAY7_NV
:
1407 case GL_VERTEX_ATTRIB_ARRAY8_NV
:
1408 case GL_VERTEX_ATTRIB_ARRAY9_NV
:
1409 case GL_VERTEX_ATTRIB_ARRAY10_NV
:
1410 case GL_VERTEX_ATTRIB_ARRAY11_NV
:
1411 case GL_VERTEX_ATTRIB_ARRAY12_NV
:
1412 case GL_VERTEX_ATTRIB_ARRAY13_NV
:
1413 case GL_VERTEX_ATTRIB_ARRAY14_NV
:
1414 case GL_VERTEX_ATTRIB_ARRAY15_NV
:
1415 CHECK_EXTENSION(NV_vertex_program
);
1417 GLint n
= (GLint
) cap
- GL_VERTEX_ATTRIB_ARRAY0_NV
;
1418 ASSERT(n
< Elements(ctx
->Array
.ArrayObj
->VertexAttrib
));
1419 return (ctx
->Array
.ArrayObj
->VertexAttrib
[n
].Enabled
!= 0);
1421 case GL_MAP1_VERTEX_ATTRIB0_4_NV
:
1422 case GL_MAP1_VERTEX_ATTRIB1_4_NV
:
1423 case GL_MAP1_VERTEX_ATTRIB2_4_NV
:
1424 case GL_MAP1_VERTEX_ATTRIB3_4_NV
:
1425 case GL_MAP1_VERTEX_ATTRIB4_4_NV
:
1426 case GL_MAP1_VERTEX_ATTRIB5_4_NV
:
1427 case GL_MAP1_VERTEX_ATTRIB6_4_NV
:
1428 case GL_MAP1_VERTEX_ATTRIB7_4_NV
:
1429 case GL_MAP1_VERTEX_ATTRIB8_4_NV
:
1430 case GL_MAP1_VERTEX_ATTRIB9_4_NV
:
1431 case GL_MAP1_VERTEX_ATTRIB10_4_NV
:
1432 case GL_MAP1_VERTEX_ATTRIB11_4_NV
:
1433 case GL_MAP1_VERTEX_ATTRIB12_4_NV
:
1434 case GL_MAP1_VERTEX_ATTRIB13_4_NV
:
1435 case GL_MAP1_VERTEX_ATTRIB14_4_NV
:
1436 case GL_MAP1_VERTEX_ATTRIB15_4_NV
:
1437 CHECK_EXTENSION(NV_vertex_program
);
1439 const GLuint map
= (GLuint
) (cap
- GL_MAP1_VERTEX_ATTRIB0_4_NV
);
1440 return ctx
->Eval
.Map1Attrib
[map
];
1442 case GL_MAP2_VERTEX_ATTRIB0_4_NV
:
1443 case GL_MAP2_VERTEX_ATTRIB1_4_NV
:
1444 case GL_MAP2_VERTEX_ATTRIB2_4_NV
:
1445 case GL_MAP2_VERTEX_ATTRIB3_4_NV
:
1446 case GL_MAP2_VERTEX_ATTRIB4_4_NV
:
1447 case GL_MAP2_VERTEX_ATTRIB5_4_NV
:
1448 case GL_MAP2_VERTEX_ATTRIB6_4_NV
:
1449 case GL_MAP2_VERTEX_ATTRIB7_4_NV
:
1450 case GL_MAP2_VERTEX_ATTRIB8_4_NV
:
1451 case GL_MAP2_VERTEX_ATTRIB9_4_NV
:
1452 case GL_MAP2_VERTEX_ATTRIB10_4_NV
:
1453 case GL_MAP2_VERTEX_ATTRIB11_4_NV
:
1454 case GL_MAP2_VERTEX_ATTRIB12_4_NV
:
1455 case GL_MAP2_VERTEX_ATTRIB13_4_NV
:
1456 case GL_MAP2_VERTEX_ATTRIB14_4_NV
:
1457 case GL_MAP2_VERTEX_ATTRIB15_4_NV
:
1458 CHECK_EXTENSION(NV_vertex_program
);
1460 const GLuint map
= (GLuint
) (cap
- GL_MAP2_VERTEX_ATTRIB0_4_NV
);
1461 return ctx
->Eval
.Map2Attrib
[map
];
1463 #endif /* FEATURE_NV_vertex_program */
1465 #if FEATURE_NV_fragment_program
1466 case GL_FRAGMENT_PROGRAM_NV
:
1467 CHECK_EXTENSION(NV_fragment_program
);
1468 return ctx
->FragmentProgram
.Enabled
;
1469 #endif /* FEATURE_NV_fragment_program */
1471 /* GL_NV_texture_rectangle */
1472 case GL_TEXTURE_RECTANGLE_NV
:
1473 CHECK_EXTENSION(NV_texture_rectangle
);
1474 return is_texture_enabled(ctx
, TEXTURE_RECT_BIT
);
1476 /* GL_EXT_stencil_two_side */
1477 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1478 CHECK_EXTENSION(EXT_stencil_two_side
);
1479 return ctx
->Stencil
.TestTwoSide
;
1481 #if FEATURE_ARB_fragment_program
1482 case GL_FRAGMENT_PROGRAM_ARB
:
1483 return ctx
->FragmentProgram
.Enabled
;
1484 #endif /* FEATURE_ARB_fragment_program */
1486 /* GL_EXT_depth_bounds_test */
1487 case GL_DEPTH_BOUNDS_TEST_EXT
:
1488 CHECK_EXTENSION(EXT_depth_bounds_test
);
1489 return ctx
->Depth
.BoundsTest
;
1491 /* GL_ARB_depth_clamp */
1492 case GL_DEPTH_CLAMP
:
1493 CHECK_EXTENSION(ARB_depth_clamp
);
1494 return ctx
->Transform
.DepthClamp
;
1496 #if FEATURE_ATI_fragment_shader
1497 case GL_FRAGMENT_SHADER_ATI
:
1498 CHECK_EXTENSION(ATI_fragment_shader
);
1499 return ctx
->ATIFragmentShader
.Enabled
;
1500 #endif /* FEATURE_ATI_fragment_shader */
1502 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
1503 CHECK_EXTENSION(ARB_seamless_cube_map
);
1504 return ctx
->Texture
.CubeMapSeamless
;
1506 #if FEATURE_EXT_transform_feedback
1507 case GL_RASTERIZER_DISCARD
:
1508 CHECK_EXTENSION(EXT_transform_feedback
);
1509 return ctx
->TransformFeedback
.RasterDiscard
;
1513 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(0x%x)", (int) cap
);