3 * Enable/disable/query GL capabilities.
7 * Mesa 3-D graphics library
9 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
25 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
26 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
27 * OTHER DEALINGS IN THE SOFTWARE.
35 #include "debug_output.h"
45 #define CHECK_EXTENSION(EXTNAME, CAP) \
46 if (!ctx->Extensions.EXTNAME) { \
47 goto invalid_enum_error; \
52 update_derived_primitive_restart_state(struct gl_context
*ctx
)
54 /* Update derived primitive restart state.
56 ctx
->Array
._PrimitiveRestart
= ctx
->Array
.PrimitiveRestart
57 || ctx
->Array
.PrimitiveRestartFixedIndex
;
61 * Helper to enable/disable client-side state.
64 client_state(struct gl_context
*ctx
, GLenum cap
, GLboolean state
)
66 struct gl_vertex_array_object
*vao
= ctx
->Array
.VAO
;
72 var
= &vao
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
;
76 var
= &vao
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
;
77 flag
= VERT_BIT_NORMAL
;
80 var
= &vao
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
;
81 flag
= VERT_BIT_COLOR0
;
84 var
= &vao
->VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Enabled
;
85 flag
= VERT_BIT_COLOR_INDEX
;
87 case GL_TEXTURE_COORD_ARRAY
:
88 var
= &vao
->VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].Enabled
;
89 flag
= VERT_BIT_TEX(ctx
->Array
.ActiveTexture
);
91 case GL_EDGE_FLAG_ARRAY
:
92 var
= &vao
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Enabled
;
93 flag
= VERT_BIT_EDGEFLAG
;
95 case GL_FOG_COORDINATE_ARRAY_EXT
:
96 var
= &vao
->VertexAttrib
[VERT_ATTRIB_FOG
].Enabled
;
99 case GL_SECONDARY_COLOR_ARRAY_EXT
:
100 var
= &vao
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Enabled
;
101 flag
= VERT_BIT_COLOR1
;
104 case GL_POINT_SIZE_ARRAY_OES
:
105 var
= &vao
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Enabled
;
106 flag
= VERT_BIT_POINT_SIZE
;
107 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
108 ctx
->VertexProgram
.PointSizeEnabled
= state
;
111 /* GL_NV_primitive_restart */
112 case GL_PRIMITIVE_RESTART_NV
:
113 if (!ctx
->Extensions
.NV_primitive_restart
) {
114 goto invalid_enum_error
;
116 var
= &ctx
->Array
.PrimitiveRestart
;
121 goto invalid_enum_error
;
127 FLUSH_VERTICES(ctx
, _NEW_ARRAY
);
131 update_derived_primitive_restart_state(ctx
);
134 vao
->_Enabled
|= flag
;
136 vao
->_Enabled
&= ~flag
;
138 vao
->NewArrays
|= flag
;
140 if (ctx
->Driver
.Enable
) {
141 ctx
->Driver
.Enable( ctx
, cap
, state
);
147 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%sClientState(%s)",
148 state
? "Enable" : "Disable", _mesa_enum_to_string(cap
));
153 * Enable GL capability.
154 * \param cap state to enable/disable.
156 * Get's the current context, assures that we're outside glBegin()/glEnd() and
157 * calls client_state().
160 _mesa_EnableClientState( GLenum cap
)
162 GET_CURRENT_CONTEXT(ctx
);
163 client_state( ctx
, cap
, GL_TRUE
);
168 * Disable GL capability.
169 * \param cap state to enable/disable.
171 * Get's the current context, assures that we're outside glBegin()/glEnd() and
172 * calls client_state().
175 _mesa_DisableClientState( GLenum cap
)
177 GET_CURRENT_CONTEXT(ctx
);
178 client_state( ctx
, cap
, GL_FALSE
);
182 #undef CHECK_EXTENSION
183 #define CHECK_EXTENSION(EXTNAME, CAP) \
184 if (!ctx->Extensions.EXTNAME) { \
185 goto invalid_enum_error; \
188 #define CHECK_EXTENSION2(EXT1, EXT2, CAP) \
189 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
190 goto invalid_enum_error; \
194 * Return pointer to current texture unit for setting/getting coordinate
196 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active
197 * texture unit is higher than the number of supported coordinate units.
199 static struct gl_texture_unit
*
200 get_texcoord_unit(struct gl_context
*ctx
)
202 if (ctx
->Texture
.CurrentUnit
>= ctx
->Const
.MaxTextureCoordUnits
) {
203 _mesa_error(ctx
, GL_INVALID_OPERATION
, "glEnable/Disable(texcoord unit)");
207 return &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
213 * Helper function to enable or disable a texture target.
214 * \param bit one of the TEXTURE_x_BIT values
215 * \return GL_TRUE if state is changing or GL_FALSE if no change
218 enable_texture(struct gl_context
*ctx
, GLboolean state
, GLbitfield texBit
)
220 struct gl_texture_unit
*texUnit
= _mesa_get_current_tex_unit(ctx
);
221 const GLbitfield newenabled
= state
222 ? (texUnit
->Enabled
| texBit
) : (texUnit
->Enabled
& ~texBit
);
224 if (texUnit
->Enabled
== newenabled
)
227 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_STATE
);
228 texUnit
->Enabled
= newenabled
;
234 * Helper function to enable or disable GL_MULTISAMPLE, skipping the check for
235 * whether the API supports it (GLES doesn't).
238 _mesa_set_multisample(struct gl_context
*ctx
, GLboolean state
)
240 if (ctx
->Multisample
.Enabled
== state
)
243 /* GL compatibility needs Multisample.Enable to determine program state
246 if (ctx
->API
== API_OPENGL_COMPAT
|| ctx
->API
== API_OPENGLES
||
247 !ctx
->DriverFlags
.NewMultisampleEnable
) {
248 FLUSH_VERTICES(ctx
, _NEW_MULTISAMPLE
);
250 FLUSH_VERTICES(ctx
, 0);
253 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewMultisampleEnable
;
254 ctx
->Multisample
.Enabled
= state
;
256 if (ctx
->Driver
.Enable
) {
257 ctx
->Driver
.Enable(ctx
, GL_MULTISAMPLE
, state
);
262 * Helper function to enable or disable GL_FRAMEBUFFER_SRGB, skipping the
263 * check for whether the API supports it (GLES doesn't).
266 _mesa_set_framebuffer_srgb(struct gl_context
*ctx
, GLboolean state
)
268 if (ctx
->Color
.sRGBEnabled
== state
)
271 /* TODO: Switch i965 to the new flag and remove the conditional */
272 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewFramebufferSRGB
? 0 : _NEW_BUFFERS
);
273 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewFramebufferSRGB
;
274 ctx
->Color
.sRGBEnabled
= state
;
276 if (ctx
->Driver
.Enable
) {
277 ctx
->Driver
.Enable(ctx
, GL_FRAMEBUFFER_SRGB
, state
);
282 * Helper function to enable or disable state.
284 * \param ctx GL context.
285 * \param cap the state to enable/disable
286 * \param state whether to enable or disable the specified capability.
288 * Updates the current context and flushes the vertices as needed. For
289 * capabilities associated with extensions it verifies that those extensions
290 * are effectivly present before updating. Notifies the driver via
291 * dd_function_table::Enable.
294 _mesa_set_enable(struct gl_context
*ctx
, GLenum cap
, GLboolean state
)
296 if (MESA_VERBOSE
& VERBOSE_API
)
297 _mesa_debug(ctx
, "%s %s (newstate is %x)\n",
298 state
? "glEnable" : "glDisable",
299 _mesa_enum_to_string(cap
),
304 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
305 goto invalid_enum_error
;
306 if (ctx
->Color
.AlphaEnabled
== state
)
308 /* AlphaEnabled is used by the fixed-func fragment program */
309 FLUSH_VERTICES(ctx
, _NEW_COLOR
);
310 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewAlphaTest
;
311 ctx
->Color
.AlphaEnabled
= state
;
314 if (ctx
->API
!= API_OPENGL_COMPAT
)
315 goto invalid_enum_error
;
316 if (ctx
->Eval
.AutoNormal
== state
)
318 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
319 ctx
->Eval
.AutoNormal
= state
;
323 GLbitfield newEnabled
=
324 state
* ((1 << ctx
->Const
.MaxDrawBuffers
) - 1);
325 if (newEnabled
!= ctx
->Color
.BlendEnabled
) {
326 _mesa_flush_vertices_for_blend_state(ctx
);
327 ctx
->Color
.BlendEnabled
= newEnabled
;
331 case GL_CLIP_DISTANCE0
: /* aka GL_CLIP_PLANE0 */
332 case GL_CLIP_DISTANCE1
:
333 case GL_CLIP_DISTANCE2
:
334 case GL_CLIP_DISTANCE3
:
335 case GL_CLIP_DISTANCE4
:
336 case GL_CLIP_DISTANCE5
:
337 case GL_CLIP_DISTANCE6
:
338 case GL_CLIP_DISTANCE7
:
340 const GLuint p
= cap
- GL_CLIP_DISTANCE0
;
342 if (p
>= ctx
->Const
.MaxClipPlanes
)
343 goto invalid_enum_error
;
345 if ((ctx
->Transform
.ClipPlanesEnabled
& (1 << p
))
346 == ((GLuint
) state
<< p
))
349 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
352 ctx
->Transform
.ClipPlanesEnabled
|= (1 << p
);
353 _mesa_update_clip_plane(ctx
, p
);
356 ctx
->Transform
.ClipPlanesEnabled
&= ~(1 << p
);
360 case GL_COLOR_MATERIAL
:
361 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
362 goto invalid_enum_error
;
363 if (ctx
->Light
.ColorMaterialEnabled
== state
)
365 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
366 FLUSH_CURRENT(ctx
, 0);
367 ctx
->Light
.ColorMaterialEnabled
= state
;
369 _mesa_update_color_material( ctx
,
370 ctx
->Current
.Attrib
[VERT_ATTRIB_COLOR0
] );
374 if (ctx
->Polygon
.CullFlag
== state
)
376 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
377 ctx
->Polygon
.CullFlag
= state
;
380 if (ctx
->Depth
.Test
== state
)
382 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewDepth
? 0 : _NEW_DEPTH
);
383 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDepth
;
384 ctx
->Depth
.Test
= state
;
386 case GL_DEBUG_OUTPUT
:
387 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB
:
388 _mesa_set_debug_state_int(ctx
, cap
, state
);
391 if (ctx
->Color
.DitherFlag
== state
)
393 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewBlend
? 0 : _NEW_COLOR
);
394 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewBlend
;
395 ctx
->Color
.DitherFlag
= state
;
398 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
399 goto invalid_enum_error
;
400 if (ctx
->Fog
.Enabled
== state
)
402 FLUSH_VERTICES(ctx
, _NEW_FOG
);
403 ctx
->Fog
.Enabled
= state
;
404 ctx
->Fog
._PackedEnabledMode
= state
? ctx
->Fog
._PackedMode
: FOG_NONE
;
414 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
415 goto invalid_enum_error
;
416 if (ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
== state
)
418 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
419 ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
= state
;
421 ctx
->Light
._EnabledLights
|= 1u << (cap
- GL_LIGHT0
);
424 ctx
->Light
._EnabledLights
&= ~(1u << (cap
- GL_LIGHT0
));
428 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
429 goto invalid_enum_error
;
430 if (ctx
->Light
.Enabled
== state
)
432 FLUSH_VERTICES(ctx
, _NEW_LIGHT
);
433 ctx
->Light
.Enabled
= state
;
436 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
437 goto invalid_enum_error
;
438 if (ctx
->Line
.SmoothFlag
== state
)
440 FLUSH_VERTICES(ctx
, _NEW_LINE
);
441 ctx
->Line
.SmoothFlag
= state
;
443 case GL_LINE_STIPPLE
:
444 if (ctx
->API
!= API_OPENGL_COMPAT
)
445 goto invalid_enum_error
;
446 if (ctx
->Line
.StippleFlag
== state
)
448 FLUSH_VERTICES(ctx
, _NEW_LINE
);
449 ctx
->Line
.StippleFlag
= state
;
451 case GL_INDEX_LOGIC_OP
:
452 if (ctx
->API
!= API_OPENGL_COMPAT
)
453 goto invalid_enum_error
;
454 if (ctx
->Color
.IndexLogicOpEnabled
== state
)
456 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewLogicOp
? 0 : _NEW_COLOR
);
457 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewLogicOp
;
458 ctx
->Color
.IndexLogicOpEnabled
= state
;
460 case GL_CONSERVATIVE_RASTERIZATION_INTEL
:
461 if (!_mesa_has_INTEL_conservative_rasterization(ctx
))
462 goto invalid_enum_error
;
463 if (ctx
->IntelConservativeRasterization
== state
)
465 FLUSH_VERTICES(ctx
, 0);
466 ctx
->NewDriverState
|=
467 ctx
->DriverFlags
.NewIntelConservativeRasterization
;
468 ctx
->IntelConservativeRasterization
= state
;
470 case GL_COLOR_LOGIC_OP
:
471 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
472 goto invalid_enum_error
;
473 if (ctx
->Color
.ColorLogicOpEnabled
== state
)
475 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewLogicOp
? 0 : _NEW_COLOR
);
476 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewLogicOp
;
477 ctx
->Color
.ColorLogicOpEnabled
= state
;
479 case GL_MAP1_COLOR_4
:
480 if (ctx
->API
!= API_OPENGL_COMPAT
)
481 goto invalid_enum_error
;
482 if (ctx
->Eval
.Map1Color4
== state
)
484 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
485 ctx
->Eval
.Map1Color4
= state
;
488 if (ctx
->API
!= API_OPENGL_COMPAT
)
489 goto invalid_enum_error
;
490 if (ctx
->Eval
.Map1Index
== state
)
492 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
493 ctx
->Eval
.Map1Index
= state
;
496 if (ctx
->API
!= API_OPENGL_COMPAT
)
497 goto invalid_enum_error
;
498 if (ctx
->Eval
.Map1Normal
== state
)
500 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
501 ctx
->Eval
.Map1Normal
= state
;
503 case GL_MAP1_TEXTURE_COORD_1
:
504 if (ctx
->API
!= API_OPENGL_COMPAT
)
505 goto invalid_enum_error
;
506 if (ctx
->Eval
.Map1TextureCoord1
== state
)
508 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
509 ctx
->Eval
.Map1TextureCoord1
= state
;
511 case GL_MAP1_TEXTURE_COORD_2
:
512 if (ctx
->API
!= API_OPENGL_COMPAT
)
513 goto invalid_enum_error
;
514 if (ctx
->Eval
.Map1TextureCoord2
== state
)
516 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
517 ctx
->Eval
.Map1TextureCoord2
= state
;
519 case GL_MAP1_TEXTURE_COORD_3
:
520 if (ctx
->API
!= API_OPENGL_COMPAT
)
521 goto invalid_enum_error
;
522 if (ctx
->Eval
.Map1TextureCoord3
== state
)
524 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
525 ctx
->Eval
.Map1TextureCoord3
= state
;
527 case GL_MAP1_TEXTURE_COORD_4
:
528 if (ctx
->API
!= API_OPENGL_COMPAT
)
529 goto invalid_enum_error
;
530 if (ctx
->Eval
.Map1TextureCoord4
== state
)
532 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
533 ctx
->Eval
.Map1TextureCoord4
= state
;
535 case GL_MAP1_VERTEX_3
:
536 if (ctx
->API
!= API_OPENGL_COMPAT
)
537 goto invalid_enum_error
;
538 if (ctx
->Eval
.Map1Vertex3
== state
)
540 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
541 ctx
->Eval
.Map1Vertex3
= state
;
543 case GL_MAP1_VERTEX_4
:
544 if (ctx
->API
!= API_OPENGL_COMPAT
)
545 goto invalid_enum_error
;
546 if (ctx
->Eval
.Map1Vertex4
== state
)
548 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
549 ctx
->Eval
.Map1Vertex4
= state
;
551 case GL_MAP2_COLOR_4
:
552 if (ctx
->API
!= API_OPENGL_COMPAT
)
553 goto invalid_enum_error
;
554 if (ctx
->Eval
.Map2Color4
== state
)
556 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
557 ctx
->Eval
.Map2Color4
= state
;
560 if (ctx
->API
!= API_OPENGL_COMPAT
)
561 goto invalid_enum_error
;
562 if (ctx
->Eval
.Map2Index
== state
)
564 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
565 ctx
->Eval
.Map2Index
= state
;
568 if (ctx
->API
!= API_OPENGL_COMPAT
)
569 goto invalid_enum_error
;
570 if (ctx
->Eval
.Map2Normal
== state
)
572 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
573 ctx
->Eval
.Map2Normal
= state
;
575 case GL_MAP2_TEXTURE_COORD_1
:
576 if (ctx
->API
!= API_OPENGL_COMPAT
)
577 goto invalid_enum_error
;
578 if (ctx
->Eval
.Map2TextureCoord1
== state
)
580 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
581 ctx
->Eval
.Map2TextureCoord1
= state
;
583 case GL_MAP2_TEXTURE_COORD_2
:
584 if (ctx
->API
!= API_OPENGL_COMPAT
)
585 goto invalid_enum_error
;
586 if (ctx
->Eval
.Map2TextureCoord2
== state
)
588 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
589 ctx
->Eval
.Map2TextureCoord2
= state
;
591 case GL_MAP2_TEXTURE_COORD_3
:
592 if (ctx
->API
!= API_OPENGL_COMPAT
)
593 goto invalid_enum_error
;
594 if (ctx
->Eval
.Map2TextureCoord3
== state
)
596 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
597 ctx
->Eval
.Map2TextureCoord3
= state
;
599 case GL_MAP2_TEXTURE_COORD_4
:
600 if (ctx
->API
!= API_OPENGL_COMPAT
)
601 goto invalid_enum_error
;
602 if (ctx
->Eval
.Map2TextureCoord4
== state
)
604 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
605 ctx
->Eval
.Map2TextureCoord4
= state
;
607 case GL_MAP2_VERTEX_3
:
608 if (ctx
->API
!= API_OPENGL_COMPAT
)
609 goto invalid_enum_error
;
610 if (ctx
->Eval
.Map2Vertex3
== state
)
612 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
613 ctx
->Eval
.Map2Vertex3
= state
;
615 case GL_MAP2_VERTEX_4
:
616 if (ctx
->API
!= API_OPENGL_COMPAT
)
617 goto invalid_enum_error
;
618 if (ctx
->Eval
.Map2Vertex4
== state
)
620 FLUSH_VERTICES(ctx
, _NEW_EVAL
);
621 ctx
->Eval
.Map2Vertex4
= state
;
624 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
625 goto invalid_enum_error
;
626 if (ctx
->Transform
.Normalize
== state
)
628 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
629 ctx
->Transform
.Normalize
= state
;
631 case GL_POINT_SMOOTH
:
632 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
633 goto invalid_enum_error
;
634 if (ctx
->Point
.SmoothFlag
== state
)
636 FLUSH_VERTICES(ctx
, _NEW_POINT
);
637 ctx
->Point
.SmoothFlag
= state
;
639 case GL_POLYGON_SMOOTH
:
640 if (!_mesa_is_desktop_gl(ctx
))
641 goto invalid_enum_error
;
642 if (ctx
->Polygon
.SmoothFlag
== state
)
644 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
645 ctx
->Polygon
.SmoothFlag
= state
;
647 case GL_POLYGON_STIPPLE
:
648 if (ctx
->API
!= API_OPENGL_COMPAT
)
649 goto invalid_enum_error
;
650 if (ctx
->Polygon
.StippleFlag
== state
)
652 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
653 ctx
->Polygon
.StippleFlag
= state
;
655 case GL_POLYGON_OFFSET_POINT
:
656 if (!_mesa_is_desktop_gl(ctx
))
657 goto invalid_enum_error
;
658 if (ctx
->Polygon
.OffsetPoint
== state
)
660 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
661 ctx
->Polygon
.OffsetPoint
= state
;
663 case GL_POLYGON_OFFSET_LINE
:
664 if (!_mesa_is_desktop_gl(ctx
))
665 goto invalid_enum_error
;
666 if (ctx
->Polygon
.OffsetLine
== state
)
668 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
669 ctx
->Polygon
.OffsetLine
= state
;
671 case GL_POLYGON_OFFSET_FILL
:
672 if (ctx
->Polygon
.OffsetFill
== state
)
674 FLUSH_VERTICES(ctx
, _NEW_POLYGON
);
675 ctx
->Polygon
.OffsetFill
= state
;
677 case GL_RESCALE_NORMAL_EXT
:
678 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
679 goto invalid_enum_error
;
680 if (ctx
->Transform
.RescaleNormals
== state
)
682 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
683 ctx
->Transform
.RescaleNormals
= state
;
685 case GL_SCISSOR_TEST
:
687 /* Must expand glEnable to all scissors */
688 GLbitfield newEnabled
=
689 state
* ((1 << ctx
->Const
.MaxViewports
) - 1);
690 if (newEnabled
!= ctx
->Scissor
.EnableFlags
) {
691 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewScissorTest
? 0 :
693 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewScissorTest
;
694 ctx
->Scissor
.EnableFlags
= newEnabled
;
698 case GL_STENCIL_TEST
:
699 if (ctx
->Stencil
.Enabled
== state
)
701 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewStencil
? 0 : _NEW_STENCIL
);
702 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewStencil
;
703 ctx
->Stencil
.Enabled
= state
;
706 if (ctx
->API
!= API_OPENGL_COMPAT
)
707 goto invalid_enum_error
;
708 if (!enable_texture(ctx
, state
, TEXTURE_1D_BIT
)) {
713 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
714 goto invalid_enum_error
;
715 if (!enable_texture(ctx
, state
, TEXTURE_2D_BIT
)) {
720 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
721 goto invalid_enum_error
;
722 if (!enable_texture(ctx
, state
, TEXTURE_3D_BIT
)) {
726 case GL_TEXTURE_GEN_S
:
727 case GL_TEXTURE_GEN_T
:
728 case GL_TEXTURE_GEN_R
:
729 case GL_TEXTURE_GEN_Q
:
731 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
733 if (ctx
->API
!= API_OPENGL_COMPAT
)
734 goto invalid_enum_error
;
737 GLbitfield coordBit
= S_BIT
<< (cap
- GL_TEXTURE_GEN_S
);
738 GLbitfield newenabled
= texUnit
->TexGenEnabled
& ~coordBit
;
740 newenabled
|= coordBit
;
741 if (texUnit
->TexGenEnabled
== newenabled
)
743 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_STATE
);
744 texUnit
->TexGenEnabled
= newenabled
;
749 case GL_TEXTURE_GEN_STR_OES
:
750 /* disable S, T, and R at the same time */
752 struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
754 if (ctx
->API
!= API_OPENGLES
)
755 goto invalid_enum_error
;
759 texUnit
->TexGenEnabled
& ~STR_BITS
;
761 newenabled
|= STR_BITS
;
762 if (texUnit
->TexGenEnabled
== newenabled
)
764 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_STATE
);
765 texUnit
->TexGenEnabled
= newenabled
;
770 /* client-side state */
771 case GL_VERTEX_ARRAY
:
772 case GL_NORMAL_ARRAY
:
774 case GL_TEXTURE_COORD_ARRAY
:
775 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
776 goto invalid_enum_error
;
777 client_state( ctx
, cap
, state
);
780 case GL_EDGE_FLAG_ARRAY
:
781 case GL_FOG_COORDINATE_ARRAY_EXT
:
782 case GL_SECONDARY_COLOR_ARRAY_EXT
:
783 if (ctx
->API
!= API_OPENGL_COMPAT
)
784 goto invalid_enum_error
;
785 client_state( ctx
, cap
, state
);
787 case GL_POINT_SIZE_ARRAY_OES
:
788 if (ctx
->API
!= API_OPENGLES
)
789 goto invalid_enum_error
;
790 client_state( ctx
, cap
, state
);
793 /* GL_ARB_texture_cube_map */
794 case GL_TEXTURE_CUBE_MAP
:
795 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
796 goto invalid_enum_error
;
797 CHECK_EXTENSION(ARB_texture_cube_map
, cap
);
798 if (!enable_texture(ctx
, state
, TEXTURE_CUBE_BIT
)) {
803 /* GL_EXT_secondary_color */
804 case GL_COLOR_SUM_EXT
:
805 if (ctx
->API
!= API_OPENGL_COMPAT
)
806 goto invalid_enum_error
;
807 if (ctx
->Fog
.ColorSumEnabled
== state
)
809 FLUSH_VERTICES(ctx
, _NEW_FOG
);
810 ctx
->Fog
.ColorSumEnabled
= state
;
813 /* GL_ARB_multisample */
814 case GL_MULTISAMPLE_ARB
:
815 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
816 goto invalid_enum_error
;
817 _mesa_set_multisample(ctx
, state
);
819 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
820 if (ctx
->Multisample
.SampleAlphaToCoverage
== state
)
822 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleAlphaToXEnable
? 0 :
824 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleAlphaToXEnable
;
825 ctx
->Multisample
.SampleAlphaToCoverage
= state
;
827 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
828 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
829 goto invalid_enum_error
;
830 if (ctx
->Multisample
.SampleAlphaToOne
== state
)
832 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleAlphaToXEnable
? 0 :
834 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleAlphaToXEnable
;
835 ctx
->Multisample
.SampleAlphaToOne
= state
;
837 case GL_SAMPLE_COVERAGE_ARB
:
838 if (ctx
->Multisample
.SampleCoverage
== state
)
840 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleMask
? 0 :
842 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleMask
;
843 ctx
->Multisample
.SampleCoverage
= state
;
845 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
846 if (!_mesa_is_desktop_gl(ctx
))
847 goto invalid_enum_error
;
848 if (ctx
->Multisample
.SampleCoverageInvert
== state
)
850 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleMask
? 0 :
852 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleMask
;
853 ctx
->Multisample
.SampleCoverageInvert
= state
;
856 /* GL_ARB_sample_shading */
857 case GL_SAMPLE_SHADING
:
858 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
859 goto invalid_enum_error
;
860 CHECK_EXTENSION(ARB_sample_shading
, cap
);
861 if (ctx
->Multisample
.SampleShading
== state
)
863 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleShading
? 0 :
865 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleShading
;
866 ctx
->Multisample
.SampleShading
= state
;
869 /* GL_IBM_rasterpos_clip */
870 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
871 if (ctx
->API
!= API_OPENGL_COMPAT
)
872 goto invalid_enum_error
;
873 if (ctx
->Transform
.RasterPositionUnclipped
== state
)
875 FLUSH_VERTICES(ctx
, 0);
876 ctx
->Transform
.RasterPositionUnclipped
= state
;
879 /* GL_NV_point_sprite */
880 case GL_POINT_SPRITE_NV
:
881 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
882 goto invalid_enum_error
;
883 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
, cap
);
884 if (ctx
->Point
.PointSprite
== state
)
886 FLUSH_VERTICES(ctx
, _NEW_POINT
);
887 ctx
->Point
.PointSprite
= state
;
890 case GL_VERTEX_PROGRAM_ARB
:
891 if (ctx
->API
!= API_OPENGL_COMPAT
)
892 goto invalid_enum_error
;
893 CHECK_EXTENSION(ARB_vertex_program
, cap
);
894 if (ctx
->VertexProgram
.Enabled
== state
)
896 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
897 ctx
->VertexProgram
.Enabled
= state
;
899 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
900 /* This was added with ARB_vertex_program, but it is also used with
901 * GLSL vertex shaders on desktop.
903 if (!_mesa_is_desktop_gl(ctx
))
904 goto invalid_enum_error
;
905 CHECK_EXTENSION(ARB_vertex_program
, cap
);
906 if (ctx
->VertexProgram
.PointSizeEnabled
== state
)
908 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
909 ctx
->VertexProgram
.PointSizeEnabled
= state
;
911 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
912 if (ctx
->API
!= API_OPENGL_COMPAT
)
913 goto invalid_enum_error
;
914 CHECK_EXTENSION(ARB_vertex_program
, cap
);
915 if (ctx
->VertexProgram
.TwoSideEnabled
== state
)
917 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
918 ctx
->VertexProgram
.TwoSideEnabled
= state
;
921 /* GL_NV_texture_rectangle */
922 case GL_TEXTURE_RECTANGLE_NV
:
923 if (ctx
->API
!= API_OPENGL_COMPAT
)
924 goto invalid_enum_error
;
925 CHECK_EXTENSION(NV_texture_rectangle
, cap
);
926 if (!enable_texture(ctx
, state
, TEXTURE_RECT_BIT
)) {
931 /* GL_EXT_stencil_two_side */
932 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
933 if (ctx
->API
!= API_OPENGL_COMPAT
)
934 goto invalid_enum_error
;
935 CHECK_EXTENSION(EXT_stencil_two_side
, cap
);
936 if (ctx
->Stencil
.TestTwoSide
== state
)
938 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewStencil
? 0 : _NEW_STENCIL
);
939 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewStencil
;
940 ctx
->Stencil
.TestTwoSide
= state
;
942 ctx
->Stencil
._BackFace
= 2;
944 ctx
->Stencil
._BackFace
= 1;
948 case GL_FRAGMENT_PROGRAM_ARB
:
949 if (ctx
->API
!= API_OPENGL_COMPAT
)
950 goto invalid_enum_error
;
951 CHECK_EXTENSION(ARB_fragment_program
, cap
);
952 if (ctx
->FragmentProgram
.Enabled
== state
)
954 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
955 ctx
->FragmentProgram
.Enabled
= state
;
958 /* GL_EXT_depth_bounds_test */
959 case GL_DEPTH_BOUNDS_TEST_EXT
:
960 if (!_mesa_is_desktop_gl(ctx
))
961 goto invalid_enum_error
;
962 CHECK_EXTENSION(EXT_depth_bounds_test
, cap
);
963 if (ctx
->Depth
.BoundsTest
== state
)
965 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewDepth
? 0 : _NEW_DEPTH
);
966 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewDepth
;
967 ctx
->Depth
.BoundsTest
= state
;
971 if (!_mesa_is_desktop_gl(ctx
))
972 goto invalid_enum_error
;
973 CHECK_EXTENSION(ARB_depth_clamp
, cap
);
974 if (ctx
->Transform
.DepthClamp
== state
)
976 FLUSH_VERTICES(ctx
, _NEW_TRANSFORM
);
977 ctx
->Transform
.DepthClamp
= state
;
980 case GL_FRAGMENT_SHADER_ATI
:
981 if (ctx
->API
!= API_OPENGL_COMPAT
)
982 goto invalid_enum_error
;
983 CHECK_EXTENSION(ATI_fragment_shader
, cap
);
984 if (ctx
->ATIFragmentShader
.Enabled
== state
)
986 FLUSH_VERTICES(ctx
, _NEW_PROGRAM
);
987 ctx
->ATIFragmentShader
.Enabled
= state
;
990 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
991 if (!_mesa_is_desktop_gl(ctx
))
992 goto invalid_enum_error
;
993 CHECK_EXTENSION(ARB_seamless_cube_map
, cap
);
994 if (ctx
->Texture
.CubeMapSeamless
!= state
) {
995 FLUSH_VERTICES(ctx
, _NEW_TEXTURE_OBJECT
);
996 ctx
->Texture
.CubeMapSeamless
= state
;
1000 case GL_RASTERIZER_DISCARD
:
1001 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
1002 goto invalid_enum_error
;
1003 CHECK_EXTENSION(EXT_transform_feedback
, cap
);
1004 if (ctx
->RasterDiscard
!= state
) {
1005 FLUSH_VERTICES(ctx
, 0);
1006 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewRasterizerDiscard
;
1007 ctx
->RasterDiscard
= state
;
1011 /* GL 3.1 primitive restart. Note: this enum is different from
1012 * GL_PRIMITIVE_RESTART_NV (which is client state).
1014 case GL_PRIMITIVE_RESTART
:
1015 if (!_mesa_is_desktop_gl(ctx
) || ctx
->Version
< 31) {
1016 goto invalid_enum_error
;
1018 if (ctx
->Array
.PrimitiveRestart
!= state
) {
1019 FLUSH_VERTICES(ctx
, 0);
1020 ctx
->Array
.PrimitiveRestart
= state
;
1021 update_derived_primitive_restart_state(ctx
);
1025 case GL_PRIMITIVE_RESTART_FIXED_INDEX
:
1026 if (!_mesa_is_gles3(ctx
) && !ctx
->Extensions
.ARB_ES3_compatibility
)
1027 goto invalid_enum_error
;
1028 if (ctx
->Array
.PrimitiveRestartFixedIndex
!= state
) {
1029 FLUSH_VERTICES(ctx
, 0);
1030 ctx
->Array
.PrimitiveRestartFixedIndex
= state
;
1031 update_derived_primitive_restart_state(ctx
);
1035 /* GL3.0 - GL_framebuffer_sRGB */
1036 case GL_FRAMEBUFFER_SRGB_EXT
:
1037 if (!_mesa_is_desktop_gl(ctx
))
1038 goto invalid_enum_error
;
1039 CHECK_EXTENSION(EXT_framebuffer_sRGB
, cap
);
1040 _mesa_set_framebuffer_srgb(ctx
, state
);
1043 /* GL_OES_EGL_image_external */
1044 case GL_TEXTURE_EXTERNAL_OES
:
1045 if (!_mesa_is_gles(ctx
))
1046 goto invalid_enum_error
;
1047 CHECK_EXTENSION(OES_EGL_image_external
, cap
);
1048 if (!enable_texture(ctx
, state
, TEXTURE_EXTERNAL_BIT
)) {
1053 /* ARB_texture_multisample */
1054 case GL_SAMPLE_MASK
:
1055 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
1056 goto invalid_enum_error
;
1057 CHECK_EXTENSION(ARB_texture_multisample
, cap
);
1058 if (ctx
->Multisample
.SampleMask
== state
)
1060 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewSampleMask
? 0 :
1062 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewSampleMask
;
1063 ctx
->Multisample
.SampleMask
= state
;
1066 case GL_BLEND_ADVANCED_COHERENT_KHR
:
1067 CHECK_EXTENSION(KHR_blend_equation_advanced_coherent
, cap
);
1068 if (ctx
->Color
.BlendCoherent
== state
)
1070 FLUSH_VERTICES(ctx
, ctx
->DriverFlags
.NewBlend
? 0 : _NEW_COLOR
);
1071 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewBlend
;
1072 ctx
->Color
.BlendCoherent
= state
;
1076 goto invalid_enum_error
;
1079 if (ctx
->Driver
.Enable
) {
1080 ctx
->Driver
.Enable( ctx
, cap
, state
);
1086 _mesa_error(ctx
, GL_INVALID_ENUM
, "gl%s(%s)",
1087 state
? "Enable" : "Disable", _mesa_enum_to_string(cap
));
1092 * Enable GL capability. Called by glEnable()
1093 * \param cap state to enable.
1096 _mesa_Enable( GLenum cap
)
1098 GET_CURRENT_CONTEXT(ctx
);
1100 _mesa_set_enable( ctx
, cap
, GL_TRUE
);
1105 * Disable GL capability. Called by glDisable()
1106 * \param cap state to disable.
1109 _mesa_Disable( GLenum cap
)
1111 GET_CURRENT_CONTEXT(ctx
);
1113 _mesa_set_enable( ctx
, cap
, GL_FALSE
);
1119 * Enable/disable an indexed state var.
1122 _mesa_set_enablei(struct gl_context
*ctx
, GLenum cap
,
1123 GLuint index
, GLboolean state
)
1125 assert(state
== 0 || state
== 1);
1128 if (!ctx
->Extensions
.EXT_draw_buffers2
) {
1129 goto invalid_enum_error
;
1131 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1132 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
1133 state
? "glEnableIndexed" : "glDisableIndexed", index
);
1136 if (((ctx
->Color
.BlendEnabled
>> index
) & 1) != state
) {
1137 _mesa_flush_vertices_for_blend_state(ctx
);
1139 ctx
->Color
.BlendEnabled
|= (1 << index
);
1141 ctx
->Color
.BlendEnabled
&= ~(1 << index
);
1144 case GL_SCISSOR_TEST
:
1145 if (index
>= ctx
->Const
.MaxViewports
) {
1146 _mesa_error(ctx
, GL_INVALID_VALUE
, "%s(index=%u)",
1147 state
? "glEnablei" : "glDisablei", index
);
1150 if (((ctx
->Scissor
.EnableFlags
>> index
) & 1) != state
) {
1152 ctx
->DriverFlags
.NewScissorTest
? 0 : _NEW_SCISSOR
);
1153 ctx
->NewDriverState
|= ctx
->DriverFlags
.NewScissorTest
;
1155 ctx
->Scissor
.EnableFlags
|= (1 << index
);
1157 ctx
->Scissor
.EnableFlags
&= ~(1 << index
);
1161 goto invalid_enum_error
;
1166 _mesa_error(ctx
, GL_INVALID_ENUM
, "%s(cap=%s)",
1167 state
? "glEnablei" : "glDisablei",
1168 _mesa_enum_to_string(cap
));
1173 _mesa_Disablei( GLenum cap
, GLuint index
)
1175 GET_CURRENT_CONTEXT(ctx
);
1176 _mesa_set_enablei(ctx
, cap
, index
, GL_FALSE
);
1181 _mesa_Enablei( GLenum cap
, GLuint index
)
1183 GET_CURRENT_CONTEXT(ctx
);
1184 _mesa_set_enablei(ctx
, cap
, index
, GL_TRUE
);
1188 GLboolean GLAPIENTRY
1189 _mesa_IsEnabledi( GLenum cap
, GLuint index
)
1191 GET_CURRENT_CONTEXT(ctx
);
1192 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1195 if (index
>= ctx
->Const
.MaxDrawBuffers
) {
1196 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1200 return (ctx
->Color
.BlendEnabled
>> index
) & 1;
1201 case GL_SCISSOR_TEST
:
1202 if (index
>= ctx
->Const
.MaxViewports
) {
1203 _mesa_error(ctx
, GL_INVALID_VALUE
, "glIsEnabledIndexed(index=%u)",
1207 return (ctx
->Scissor
.EnableFlags
>> index
) & 1;
1209 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabledIndexed(cap=%s)",
1210 _mesa_enum_to_string(cap
));
1218 #undef CHECK_EXTENSION
1219 #define CHECK_EXTENSION(EXTNAME) \
1220 if (!ctx->Extensions.EXTNAME) { \
1221 goto invalid_enum_error; \
1224 #undef CHECK_EXTENSION2
1225 #define CHECK_EXTENSION2(EXT1, EXT2) \
1226 if (!ctx->Extensions.EXT1 && !ctx->Extensions.EXT2) { \
1227 goto invalid_enum_error; \
1232 * Helper function to determine whether a texture target is enabled.
1235 is_texture_enabled(struct gl_context
*ctx
, GLbitfield bit
)
1237 const struct gl_texture_unit
*const texUnit
=
1238 &ctx
->Texture
.Unit
[ctx
->Texture
.CurrentUnit
];
1239 return (texUnit
->Enabled
& bit
) ? GL_TRUE
: GL_FALSE
;
1244 * Return simple enable/disable state.
1246 * \param cap state variable to query.
1248 * Returns the state of the specified capability from the current GL context.
1249 * For the capabilities associated with extensions verifies that those
1250 * extensions are effectively present before reporting.
1252 GLboolean GLAPIENTRY
1253 _mesa_IsEnabled( GLenum cap
)
1255 GET_CURRENT_CONTEXT(ctx
);
1256 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx
, 0);
1260 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1261 goto invalid_enum_error
;
1262 return ctx
->Color
.AlphaEnabled
;
1263 case GL_AUTO_NORMAL
:
1264 if (ctx
->API
!= API_OPENGL_COMPAT
)
1265 goto invalid_enum_error
;
1266 return ctx
->Eval
.AutoNormal
;
1268 return ctx
->Color
.BlendEnabled
& 1; /* return state for buffer[0] */
1269 case GL_CLIP_DISTANCE0
: /* aka GL_CLIP_PLANE0 */
1270 case GL_CLIP_DISTANCE1
:
1271 case GL_CLIP_DISTANCE2
:
1272 case GL_CLIP_DISTANCE3
:
1273 case GL_CLIP_DISTANCE4
:
1274 case GL_CLIP_DISTANCE5
:
1275 case GL_CLIP_DISTANCE6
:
1276 case GL_CLIP_DISTANCE7
: {
1277 const GLuint p
= cap
- GL_CLIP_DISTANCE0
;
1279 if (p
>= ctx
->Const
.MaxClipPlanes
)
1280 goto invalid_enum_error
;
1282 return (ctx
->Transform
.ClipPlanesEnabled
>> p
) & 1;
1284 case GL_COLOR_MATERIAL
:
1285 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1286 goto invalid_enum_error
;
1287 return ctx
->Light
.ColorMaterialEnabled
;
1289 return ctx
->Polygon
.CullFlag
;
1290 case GL_DEBUG_OUTPUT
:
1291 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB
:
1292 return (GLboolean
) _mesa_get_debug_state_int(ctx
, cap
);
1294 return ctx
->Depth
.Test
;
1296 return ctx
->Color
.DitherFlag
;
1298 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1299 goto invalid_enum_error
;
1300 return ctx
->Fog
.Enabled
;
1302 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1303 goto invalid_enum_error
;
1304 return ctx
->Light
.Enabled
;
1313 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1314 goto invalid_enum_error
;
1315 return ctx
->Light
.Light
[cap
-GL_LIGHT0
].Enabled
;
1316 case GL_LINE_SMOOTH
:
1317 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
1318 goto invalid_enum_error
;
1319 return ctx
->Line
.SmoothFlag
;
1320 case GL_LINE_STIPPLE
:
1321 if (ctx
->API
!= API_OPENGL_COMPAT
)
1322 goto invalid_enum_error
;
1323 return ctx
->Line
.StippleFlag
;
1324 case GL_INDEX_LOGIC_OP
:
1325 if (ctx
->API
!= API_OPENGL_COMPAT
)
1326 goto invalid_enum_error
;
1327 return ctx
->Color
.IndexLogicOpEnabled
;
1328 case GL_COLOR_LOGIC_OP
:
1329 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
1330 goto invalid_enum_error
;
1331 return ctx
->Color
.ColorLogicOpEnabled
;
1332 case GL_MAP1_COLOR_4
:
1333 if (ctx
->API
!= API_OPENGL_COMPAT
)
1334 goto invalid_enum_error
;
1335 return ctx
->Eval
.Map1Color4
;
1337 if (ctx
->API
!= API_OPENGL_COMPAT
)
1338 goto invalid_enum_error
;
1339 return ctx
->Eval
.Map1Index
;
1340 case GL_MAP1_NORMAL
:
1341 if (ctx
->API
!= API_OPENGL_COMPAT
)
1342 goto invalid_enum_error
;
1343 return ctx
->Eval
.Map1Normal
;
1344 case GL_MAP1_TEXTURE_COORD_1
:
1345 if (ctx
->API
!= API_OPENGL_COMPAT
)
1346 goto invalid_enum_error
;
1347 return ctx
->Eval
.Map1TextureCoord1
;
1348 case GL_MAP1_TEXTURE_COORD_2
:
1349 if (ctx
->API
!= API_OPENGL_COMPAT
)
1350 goto invalid_enum_error
;
1351 return ctx
->Eval
.Map1TextureCoord2
;
1352 case GL_MAP1_TEXTURE_COORD_3
:
1353 if (ctx
->API
!= API_OPENGL_COMPAT
)
1354 goto invalid_enum_error
;
1355 return ctx
->Eval
.Map1TextureCoord3
;
1356 case GL_MAP1_TEXTURE_COORD_4
:
1357 if (ctx
->API
!= API_OPENGL_COMPAT
)
1358 goto invalid_enum_error
;
1359 return ctx
->Eval
.Map1TextureCoord4
;
1360 case GL_MAP1_VERTEX_3
:
1361 if (ctx
->API
!= API_OPENGL_COMPAT
)
1362 goto invalid_enum_error
;
1363 return ctx
->Eval
.Map1Vertex3
;
1364 case GL_MAP1_VERTEX_4
:
1365 if (ctx
->API
!= API_OPENGL_COMPAT
)
1366 goto invalid_enum_error
;
1367 return ctx
->Eval
.Map1Vertex4
;
1368 case GL_MAP2_COLOR_4
:
1369 if (ctx
->API
!= API_OPENGL_COMPAT
)
1370 goto invalid_enum_error
;
1371 return ctx
->Eval
.Map2Color4
;
1373 if (ctx
->API
!= API_OPENGL_COMPAT
)
1374 goto invalid_enum_error
;
1375 return ctx
->Eval
.Map2Index
;
1376 case GL_MAP2_NORMAL
:
1377 if (ctx
->API
!= API_OPENGL_COMPAT
)
1378 goto invalid_enum_error
;
1379 return ctx
->Eval
.Map2Normal
;
1380 case GL_MAP2_TEXTURE_COORD_1
:
1381 if (ctx
->API
!= API_OPENGL_COMPAT
)
1382 goto invalid_enum_error
;
1383 return ctx
->Eval
.Map2TextureCoord1
;
1384 case GL_MAP2_TEXTURE_COORD_2
:
1385 if (ctx
->API
!= API_OPENGL_COMPAT
)
1386 goto invalid_enum_error
;
1387 return ctx
->Eval
.Map2TextureCoord2
;
1388 case GL_MAP2_TEXTURE_COORD_3
:
1389 if (ctx
->API
!= API_OPENGL_COMPAT
)
1390 goto invalid_enum_error
;
1391 return ctx
->Eval
.Map2TextureCoord3
;
1392 case GL_MAP2_TEXTURE_COORD_4
:
1393 if (ctx
->API
!= API_OPENGL_COMPAT
)
1394 goto invalid_enum_error
;
1395 return ctx
->Eval
.Map2TextureCoord4
;
1396 case GL_MAP2_VERTEX_3
:
1397 if (ctx
->API
!= API_OPENGL_COMPAT
)
1398 goto invalid_enum_error
;
1399 return ctx
->Eval
.Map2Vertex3
;
1400 case GL_MAP2_VERTEX_4
:
1401 if (ctx
->API
!= API_OPENGL_COMPAT
)
1402 goto invalid_enum_error
;
1403 return ctx
->Eval
.Map2Vertex4
;
1405 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1406 goto invalid_enum_error
;
1407 return ctx
->Transform
.Normalize
;
1408 case GL_POINT_SMOOTH
:
1409 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1410 goto invalid_enum_error
;
1411 return ctx
->Point
.SmoothFlag
;
1412 case GL_POLYGON_SMOOTH
:
1413 if (!_mesa_is_desktop_gl(ctx
))
1414 goto invalid_enum_error
;
1415 return ctx
->Polygon
.SmoothFlag
;
1416 case GL_POLYGON_STIPPLE
:
1417 if (ctx
->API
!= API_OPENGL_COMPAT
)
1418 goto invalid_enum_error
;
1419 return ctx
->Polygon
.StippleFlag
;
1420 case GL_POLYGON_OFFSET_POINT
:
1421 if (!_mesa_is_desktop_gl(ctx
))
1422 goto invalid_enum_error
;
1423 return ctx
->Polygon
.OffsetPoint
;
1424 case GL_POLYGON_OFFSET_LINE
:
1425 if (!_mesa_is_desktop_gl(ctx
))
1426 goto invalid_enum_error
;
1427 return ctx
->Polygon
.OffsetLine
;
1428 case GL_POLYGON_OFFSET_FILL
:
1429 return ctx
->Polygon
.OffsetFill
;
1430 case GL_RESCALE_NORMAL_EXT
:
1431 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1432 goto invalid_enum_error
;
1433 return ctx
->Transform
.RescaleNormals
;
1434 case GL_SCISSOR_TEST
:
1435 return ctx
->Scissor
.EnableFlags
& 1; /* return state for index 0 */
1436 case GL_STENCIL_TEST
:
1437 return ctx
->Stencil
.Enabled
;
1439 if (ctx
->API
!= API_OPENGL_COMPAT
)
1440 goto invalid_enum_error
;
1441 return is_texture_enabled(ctx
, TEXTURE_1D_BIT
);
1443 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1444 goto invalid_enum_error
;
1445 return is_texture_enabled(ctx
, TEXTURE_2D_BIT
);
1447 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1448 goto invalid_enum_error
;
1449 return is_texture_enabled(ctx
, TEXTURE_3D_BIT
);
1450 case GL_TEXTURE_GEN_S
:
1451 case GL_TEXTURE_GEN_T
:
1452 case GL_TEXTURE_GEN_R
:
1453 case GL_TEXTURE_GEN_Q
:
1455 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1457 if (ctx
->API
!= API_OPENGL_COMPAT
)
1458 goto invalid_enum_error
;
1461 GLbitfield coordBit
= S_BIT
<< (cap
- GL_TEXTURE_GEN_S
);
1462 return (texUnit
->TexGenEnabled
& coordBit
) ? GL_TRUE
: GL_FALSE
;
1466 case GL_TEXTURE_GEN_STR_OES
:
1468 const struct gl_texture_unit
*texUnit
= get_texcoord_unit(ctx
);
1470 if (ctx
->API
!= API_OPENGLES
)
1471 goto invalid_enum_error
;
1474 return (texUnit
->TexGenEnabled
& STR_BITS
) == STR_BITS
1475 ? GL_TRUE
: GL_FALSE
;
1479 /* client-side state */
1480 case GL_VERTEX_ARRAY
:
1481 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1482 goto invalid_enum_error
;
1483 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POS
].Enabled
;
1484 case GL_NORMAL_ARRAY
:
1485 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1486 goto invalid_enum_error
;
1487 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_NORMAL
].Enabled
;
1488 case GL_COLOR_ARRAY
:
1489 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1490 goto invalid_enum_error
;
1491 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR0
].Enabled
;
1492 case GL_INDEX_ARRAY
:
1493 if (ctx
->API
!= API_OPENGL_COMPAT
)
1494 goto invalid_enum_error
;
1495 return ctx
->Array
.VAO
->
1496 VertexAttrib
[VERT_ATTRIB_COLOR_INDEX
].Enabled
;
1497 case GL_TEXTURE_COORD_ARRAY
:
1498 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1499 goto invalid_enum_error
;
1500 return ctx
->Array
.VAO
->
1501 VertexAttrib
[VERT_ATTRIB_TEX(ctx
->Array
.ActiveTexture
)].Enabled
;
1502 case GL_EDGE_FLAG_ARRAY
:
1503 if (ctx
->API
!= API_OPENGL_COMPAT
)
1504 goto invalid_enum_error
;
1505 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_EDGEFLAG
].Enabled
;
1506 case GL_FOG_COORDINATE_ARRAY_EXT
:
1507 if (ctx
->API
!= API_OPENGL_COMPAT
)
1508 goto invalid_enum_error
;
1509 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_FOG
].Enabled
;
1510 case GL_SECONDARY_COLOR_ARRAY_EXT
:
1511 if (ctx
->API
!= API_OPENGL_COMPAT
)
1512 goto invalid_enum_error
;
1513 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_COLOR1
].Enabled
;
1514 case GL_POINT_SIZE_ARRAY_OES
:
1515 if (ctx
->API
!= API_OPENGLES
)
1516 goto invalid_enum_error
;
1517 return ctx
->Array
.VAO
->VertexAttrib
[VERT_ATTRIB_POINT_SIZE
].Enabled
;
1519 /* GL_ARB_texture_cube_map */
1520 case GL_TEXTURE_CUBE_MAP
:
1521 CHECK_EXTENSION(ARB_texture_cube_map
);
1522 return is_texture_enabled(ctx
, TEXTURE_CUBE_BIT
);
1524 /* GL_EXT_secondary_color */
1525 case GL_COLOR_SUM_EXT
:
1526 if (ctx
->API
!= API_OPENGL_COMPAT
)
1527 goto invalid_enum_error
;
1528 return ctx
->Fog
.ColorSumEnabled
;
1530 /* GL_ARB_multisample */
1531 case GL_MULTISAMPLE_ARB
:
1532 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
1533 goto invalid_enum_error
;
1534 return ctx
->Multisample
.Enabled
;
1535 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB
:
1536 return ctx
->Multisample
.SampleAlphaToCoverage
;
1537 case GL_SAMPLE_ALPHA_TO_ONE_ARB
:
1538 if (!_mesa_is_desktop_gl(ctx
) && ctx
->API
!= API_OPENGLES
)
1539 goto invalid_enum_error
;
1540 return ctx
->Multisample
.SampleAlphaToOne
;
1541 case GL_SAMPLE_COVERAGE_ARB
:
1542 return ctx
->Multisample
.SampleCoverage
;
1543 case GL_SAMPLE_COVERAGE_INVERT_ARB
:
1544 if (!_mesa_is_desktop_gl(ctx
))
1545 goto invalid_enum_error
;
1546 return ctx
->Multisample
.SampleCoverageInvert
;
1548 /* GL_IBM_rasterpos_clip */
1549 case GL_RASTER_POSITION_UNCLIPPED_IBM
:
1550 if (ctx
->API
!= API_OPENGL_COMPAT
)
1551 goto invalid_enum_error
;
1552 return ctx
->Transform
.RasterPositionUnclipped
;
1554 /* GL_NV_point_sprite */
1555 case GL_POINT_SPRITE_NV
:
1556 if (ctx
->API
!= API_OPENGL_COMPAT
&& ctx
->API
!= API_OPENGLES
)
1557 goto invalid_enum_error
;
1558 CHECK_EXTENSION2(NV_point_sprite
, ARB_point_sprite
)
1559 return ctx
->Point
.PointSprite
;
1561 case GL_VERTEX_PROGRAM_ARB
:
1562 if (ctx
->API
!= API_OPENGL_COMPAT
)
1563 goto invalid_enum_error
;
1564 CHECK_EXTENSION(ARB_vertex_program
);
1565 return ctx
->VertexProgram
.Enabled
;
1566 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB
:
1567 /* This was added with ARB_vertex_program, but it is also used with
1568 * GLSL vertex shaders on desktop.
1570 if (!_mesa_is_desktop_gl(ctx
))
1571 goto invalid_enum_error
;
1572 CHECK_EXTENSION(ARB_vertex_program
);
1573 return ctx
->VertexProgram
.PointSizeEnabled
;
1574 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB
:
1575 if (ctx
->API
!= API_OPENGL_COMPAT
)
1576 goto invalid_enum_error
;
1577 CHECK_EXTENSION(ARB_vertex_program
);
1578 return ctx
->VertexProgram
.TwoSideEnabled
;
1580 /* GL_NV_texture_rectangle */
1581 case GL_TEXTURE_RECTANGLE_NV
:
1582 if (ctx
->API
!= API_OPENGL_COMPAT
)
1583 goto invalid_enum_error
;
1584 CHECK_EXTENSION(NV_texture_rectangle
);
1585 return is_texture_enabled(ctx
, TEXTURE_RECT_BIT
);
1587 /* GL_EXT_stencil_two_side */
1588 case GL_STENCIL_TEST_TWO_SIDE_EXT
:
1589 if (ctx
->API
!= API_OPENGL_COMPAT
)
1590 goto invalid_enum_error
;
1591 CHECK_EXTENSION(EXT_stencil_two_side
);
1592 return ctx
->Stencil
.TestTwoSide
;
1594 case GL_FRAGMENT_PROGRAM_ARB
:
1595 if (ctx
->API
!= API_OPENGL_COMPAT
)
1596 goto invalid_enum_error
;
1597 return ctx
->FragmentProgram
.Enabled
;
1599 /* GL_EXT_depth_bounds_test */
1600 case GL_DEPTH_BOUNDS_TEST_EXT
:
1601 if (!_mesa_is_desktop_gl(ctx
))
1602 goto invalid_enum_error
;
1603 CHECK_EXTENSION(EXT_depth_bounds_test
);
1604 return ctx
->Depth
.BoundsTest
;
1606 /* GL_ARB_depth_clamp */
1607 case GL_DEPTH_CLAMP
:
1608 if (!_mesa_is_desktop_gl(ctx
))
1609 goto invalid_enum_error
;
1610 CHECK_EXTENSION(ARB_depth_clamp
);
1611 return ctx
->Transform
.DepthClamp
;
1613 case GL_FRAGMENT_SHADER_ATI
:
1614 if (ctx
->API
!= API_OPENGL_COMPAT
)
1615 goto invalid_enum_error
;
1616 CHECK_EXTENSION(ATI_fragment_shader
);
1617 return ctx
->ATIFragmentShader
.Enabled
;
1619 case GL_TEXTURE_CUBE_MAP_SEAMLESS
:
1620 if (!_mesa_is_desktop_gl(ctx
))
1621 goto invalid_enum_error
;
1622 CHECK_EXTENSION(ARB_seamless_cube_map
);
1623 return ctx
->Texture
.CubeMapSeamless
;
1625 case GL_RASTERIZER_DISCARD
:
1626 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
1627 goto invalid_enum_error
;
1628 CHECK_EXTENSION(EXT_transform_feedback
);
1629 return ctx
->RasterDiscard
;
1631 /* GL_NV_primitive_restart */
1632 case GL_PRIMITIVE_RESTART_NV
:
1633 if (ctx
->API
!= API_OPENGL_COMPAT
|| !ctx
->Extensions
.NV_primitive_restart
) {
1634 goto invalid_enum_error
;
1636 return ctx
->Array
.PrimitiveRestart
;
1638 /* GL 3.1 primitive restart */
1639 case GL_PRIMITIVE_RESTART
:
1640 if (!_mesa_is_desktop_gl(ctx
) || ctx
->Version
< 31) {
1641 goto invalid_enum_error
;
1643 return ctx
->Array
.PrimitiveRestart
;
1645 case GL_PRIMITIVE_RESTART_FIXED_INDEX
:
1646 if (!_mesa_is_gles3(ctx
) && !ctx
->Extensions
.ARB_ES3_compatibility
) {
1647 goto invalid_enum_error
;
1649 return ctx
->Array
.PrimitiveRestartFixedIndex
;
1651 /* GL3.0 - GL_framebuffer_sRGB */
1652 case GL_FRAMEBUFFER_SRGB_EXT
:
1653 if (!_mesa_is_desktop_gl(ctx
))
1654 goto invalid_enum_error
;
1655 CHECK_EXTENSION(EXT_framebuffer_sRGB
);
1656 return ctx
->Color
.sRGBEnabled
;
1658 /* GL_OES_EGL_image_external */
1659 case GL_TEXTURE_EXTERNAL_OES
:
1660 if (!_mesa_is_gles(ctx
))
1661 goto invalid_enum_error
;
1662 CHECK_EXTENSION(OES_EGL_image_external
);
1663 return is_texture_enabled(ctx
, TEXTURE_EXTERNAL_BIT
);
1665 /* ARB_texture_multisample */
1666 case GL_SAMPLE_MASK
:
1667 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles31(ctx
))
1668 goto invalid_enum_error
;
1669 CHECK_EXTENSION(ARB_texture_multisample
);
1670 return ctx
->Multisample
.SampleMask
;
1672 /* ARB_sample_shading */
1673 case GL_SAMPLE_SHADING
:
1674 if (!_mesa_is_desktop_gl(ctx
) && !_mesa_is_gles3(ctx
))
1675 goto invalid_enum_error
;
1676 CHECK_EXTENSION(ARB_sample_shading
);
1677 return ctx
->Multisample
.SampleShading
;
1679 case GL_BLEND_ADVANCED_COHERENT_KHR
:
1680 CHECK_EXTENSION(KHR_blend_equation_advanced_coherent
);
1681 return ctx
->Color
.BlendCoherent
;
1683 case GL_CONSERVATIVE_RASTERIZATION_INTEL
:
1684 CHECK_EXTENSION(INTEL_conservative_rasterization
);
1685 return ctx
->IntelConservativeRasterization
;
1688 goto invalid_enum_error
;
1694 _mesa_error(ctx
, GL_INVALID_ENUM
, "glIsEnabled(%s)",
1695 _mesa_enum_to_string(cap
));