mesa: fix unintended fallthrough in glIsEnabled()
[mesa.git] / src / mesa / main / enable.c
1 /**
2 * \file enable.c
3 * Enable/disable/query GL capabilities.
4 */
5
6 /*
7 * Mesa 3-D graphics library
8 *
9 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
10 *
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:
17 *
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
20 *
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.
28 */
29
30
31 #include "glheader.h"
32 #include "arrayobj.h"
33 #include "blend.h"
34 #include "clip.h"
35 #include "context.h"
36 #include "debug_output.h"
37 #include "enable.h"
38 #include "errors.h"
39 #include "light.h"
40 #include "mtypes.h"
41 #include "enums.h"
42 #include "state.h"
43 #include "texstate.h"
44 #include "varray.h"
45
46
47 void
48 _mesa_update_derived_primitive_restart_state(struct gl_context *ctx)
49 {
50 ctx->Array._PrimitiveRestart = ctx->Array.PrimitiveRestart ||
51 ctx->Array.PrimitiveRestartFixedIndex;
52 ctx->Array._RestartIndex[0] = _mesa_primitive_restart_index(ctx, 1);
53 ctx->Array._RestartIndex[1] = _mesa_primitive_restart_index(ctx, 2);
54 ctx->Array._RestartIndex[3] = _mesa_primitive_restart_index(ctx, 4);
55 }
56
57
58 /**
59 * Helper to enable/disable VAO client-side state.
60 */
61 static void
62 vao_state(struct gl_context *ctx, struct gl_vertex_array_object* vao,
63 gl_vert_attrib attr, GLboolean state)
64 {
65 if (state)
66 _mesa_enable_vertex_array_attrib(ctx, vao, attr);
67 else
68 _mesa_disable_vertex_array_attrib(ctx, vao, attr);
69 }
70
71
72 /**
73 * Helper to enable/disable client-side state.
74 */
75 static void
76 client_state(struct gl_context *ctx, struct gl_vertex_array_object* vao,
77 GLenum cap, GLboolean state)
78 {
79 switch (cap) {
80 case GL_VERTEX_ARRAY:
81 vao_state(ctx, vao, VERT_ATTRIB_POS, state);
82 break;
83 case GL_NORMAL_ARRAY:
84 vao_state(ctx, vao, VERT_ATTRIB_NORMAL, state);
85 break;
86 case GL_COLOR_ARRAY:
87 vao_state(ctx, vao, VERT_ATTRIB_COLOR0, state);
88 break;
89 case GL_INDEX_ARRAY:
90 vao_state(ctx, vao, VERT_ATTRIB_COLOR_INDEX, state);
91 break;
92 case GL_TEXTURE_COORD_ARRAY:
93 vao_state(ctx, vao, VERT_ATTRIB_TEX(ctx->Array.ActiveTexture), state);
94 break;
95 case GL_EDGE_FLAG_ARRAY:
96 vao_state(ctx, vao, VERT_ATTRIB_EDGEFLAG, state);
97 break;
98 case GL_FOG_COORDINATE_ARRAY_EXT:
99 vao_state(ctx, vao, VERT_ATTRIB_FOG, state);
100 break;
101 case GL_SECONDARY_COLOR_ARRAY_EXT:
102 vao_state(ctx, vao, VERT_ATTRIB_COLOR1, state);
103 break;
104
105 case GL_POINT_SIZE_ARRAY_OES:
106 if (ctx->VertexProgram.PointSizeEnabled != state) {
107 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
108 ctx->VertexProgram.PointSizeEnabled = state;
109 }
110 vao_state(ctx, vao, VERT_ATTRIB_POINT_SIZE, state);
111 break;
112
113 /* GL_NV_primitive_restart */
114 case GL_PRIMITIVE_RESTART_NV:
115 if (!_mesa_has_NV_primitive_restart(ctx))
116 goto invalid_enum_error;
117 if (ctx->Array.PrimitiveRestart == state)
118 return;
119
120 FLUSH_VERTICES(ctx, 0);
121 ctx->Array.PrimitiveRestart = state;
122 _mesa_update_derived_primitive_restart_state(ctx);
123 return;
124
125 default:
126 goto invalid_enum_error;
127 }
128
129 if (ctx->Driver.Enable) {
130 ctx->Driver.Enable( ctx, cap, state );
131 }
132
133 return;
134
135 invalid_enum_error:
136 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientState(%s)",
137 state ? "Enable" : "Disable", _mesa_enum_to_string(cap));
138 }
139
140
141 /* Helper for GL_EXT_direct_state_access following functions:
142 * - EnableClientStateIndexedEXT
143 * - EnableClientStateiEXT
144 * - DisableClientStateIndexedEXT
145 * - DisableClientStateiEXT
146 */
147 static void
148 client_state_i(struct gl_context *ctx, struct gl_vertex_array_object* vao,
149 GLenum cap, GLuint index, GLboolean state)
150 {
151 int saved_active;
152
153 if (cap != GL_TEXTURE_COORD_ARRAY) {
154 _mesa_error(ctx, GL_INVALID_ENUM, "gl%sClientStateiEXT(cap=%s)",
155 state ? "Enable" : "Disable",
156 _mesa_enum_to_string(cap));
157 return;
158 }
159
160 if (index >= ctx->Const.MaxTextureCoordUnits) {
161 _mesa_error(ctx, GL_INVALID_VALUE, "gl%sClientStateiEXT(index=%d)",
162 state ? "Enable" : "Disable",
163 index);
164 return;
165 }
166
167 saved_active = ctx->Array.ActiveTexture;
168 _mesa_ClientActiveTexture(GL_TEXTURE0 + index);
169 client_state(ctx, vao, cap, state);
170 _mesa_ClientActiveTexture(GL_TEXTURE0 + saved_active);
171 }
172
173
174 /**
175 * Enable GL capability.
176 * \param cap state to enable/disable.
177 *
178 * Get's the current context, assures that we're outside glBegin()/glEnd() and
179 * calls client_state().
180 */
181 void GLAPIENTRY
182 _mesa_EnableClientState( GLenum cap )
183 {
184 GET_CURRENT_CONTEXT(ctx);
185 client_state( ctx, ctx->Array.VAO, cap, GL_TRUE );
186 }
187
188
189 void GLAPIENTRY
190 _mesa_EnableVertexArrayEXT( GLuint vaobj, GLenum cap )
191 {
192 GET_CURRENT_CONTEXT(ctx);
193 struct gl_vertex_array_object* vao = _mesa_lookup_vao_err(ctx, vaobj,
194 true,
195 "glEnableVertexArrayEXT");
196 if (!vao)
197 return;
198
199 /* The EXT_direct_state_access spec says:
200 * "Additionally EnableVertexArrayEXT and DisableVertexArrayEXT accept
201 * the tokens TEXTURE0 through TEXTUREn where n is less than the
202 * implementation-dependent limit of MAX_TEXTURE_COORDS. For these
203 * GL_TEXTUREi tokens, EnableVertexArrayEXT and DisableVertexArrayEXT
204 * act identically to EnableVertexArrayEXT(vaobj, TEXTURE_COORD_ARRAY)
205 * or DisableVertexArrayEXT(vaobj, TEXTURE_COORD_ARRAY) respectively
206 * as if the active client texture is set to texture coordinate set i
207 * based on the token TEXTUREi indicated by array."
208 */
209 if (GL_TEXTURE0 <= cap && cap < GL_TEXTURE0 + ctx->Const.MaxTextureCoordUnits) {
210 GLuint saved_active = ctx->Array.ActiveTexture;
211 _mesa_ClientActiveTexture(cap);
212 client_state(ctx, vao, GL_TEXTURE_COORD_ARRAY, GL_TRUE);
213 _mesa_ClientActiveTexture(GL_TEXTURE0 + saved_active);
214 } else {
215 client_state(ctx, vao, cap, GL_TRUE);
216 }
217 }
218
219
220 void GLAPIENTRY
221 _mesa_EnableClientStateiEXT( GLenum cap, GLuint index )
222 {
223 GET_CURRENT_CONTEXT(ctx);
224 client_state_i(ctx, ctx->Array.VAO, cap, index, GL_TRUE);
225 }
226
227
228 /**
229 * Disable GL capability.
230 * \param cap state to enable/disable.
231 *
232 * Get's the current context, assures that we're outside glBegin()/glEnd() and
233 * calls client_state().
234 */
235 void GLAPIENTRY
236 _mesa_DisableClientState( GLenum cap )
237 {
238 GET_CURRENT_CONTEXT(ctx);
239 client_state( ctx, ctx->Array.VAO, cap, GL_FALSE );
240 }
241
242 void GLAPIENTRY
243 _mesa_DisableVertexArrayEXT( GLuint vaobj, GLenum cap )
244 {
245 GET_CURRENT_CONTEXT(ctx);
246 struct gl_vertex_array_object* vao = _mesa_lookup_vao_err(ctx, vaobj,
247 true,
248 "glDisableVertexArrayEXT");
249 if (!vao)
250 return;
251
252 /* The EXT_direct_state_access spec says:
253 * "Additionally EnableVertexArrayEXT and DisableVertexArrayEXT accept
254 * the tokens TEXTURE0 through TEXTUREn where n is less than the
255 * implementation-dependent limit of MAX_TEXTURE_COORDS. For these
256 * GL_TEXTUREi tokens, EnableVertexArrayEXT and DisableVertexArrayEXT
257 * act identically to EnableVertexArrayEXT(vaobj, TEXTURE_COORD_ARRAY)
258 * or DisableVertexArrayEXT(vaobj, TEXTURE_COORD_ARRAY) respectively
259 * as if the active client texture is set to texture coordinate set i
260 * based on the token TEXTUREi indicated by array."
261 */
262 if (GL_TEXTURE0 <= cap && cap < GL_TEXTURE0 + ctx->Const.MaxTextureCoordUnits) {
263 GLuint saved_active = ctx->Array.ActiveTexture;
264 _mesa_ClientActiveTexture(cap);
265 client_state(ctx, vao, GL_TEXTURE_COORD_ARRAY, GL_FALSE);
266 _mesa_ClientActiveTexture(GL_TEXTURE0 + saved_active);
267 } else {
268 client_state(ctx, vao, cap, GL_FALSE);
269 }
270 }
271
272 void GLAPIENTRY
273 _mesa_DisableClientStateiEXT( GLenum cap, GLuint index )
274 {
275 GET_CURRENT_CONTEXT(ctx);
276 client_state_i(ctx, ctx->Array.VAO, cap, index, GL_FALSE);
277 }
278
279 /**
280 * Return pointer to current texture unit for setting/getting coordinate
281 * state.
282 * Note that we'll set GL_INVALID_OPERATION and return NULL if the active
283 * texture unit is higher than the number of supported coordinate units.
284 */
285 static struct gl_fixedfunc_texture_unit *
286 get_texcoord_unit(struct gl_context *ctx)
287 {
288 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxTextureCoordUnits) {
289 _mesa_error(ctx, GL_INVALID_OPERATION, "glEnable/Disable(texcoord unit)");
290 return NULL;
291 }
292 else {
293 return &ctx->Texture.FixedFuncUnit[ctx->Texture.CurrentUnit];
294 }
295 }
296
297
298 /**
299 * Helper function to enable or disable a texture target.
300 * \param bit one of the TEXTURE_x_BIT values
301 * \return GL_TRUE if state is changing or GL_FALSE if no change
302 */
303 static GLboolean
304 enable_texture(struct gl_context *ctx, GLboolean state, GLbitfield texBit)
305 {
306 struct gl_fixedfunc_texture_unit *texUnit =
307 _mesa_get_fixedfunc_tex_unit(ctx, ctx->Texture.CurrentUnit);
308 if (!texUnit)
309 return GL_FALSE;
310
311 const GLbitfield newenabled = state
312 ? (texUnit->Enabled | texBit) : (texUnit->Enabled & ~texBit);
313
314 if (texUnit->Enabled == newenabled)
315 return GL_FALSE;
316
317 FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
318 texUnit->Enabled = newenabled;
319 return GL_TRUE;
320 }
321
322
323 /**
324 * Helper function to enable or disable GL_MULTISAMPLE, skipping the check for
325 * whether the API supports it (GLES doesn't).
326 */
327 void
328 _mesa_set_multisample(struct gl_context *ctx, GLboolean state)
329 {
330 if (ctx->Multisample.Enabled == state)
331 return;
332
333 /* GL compatibility needs Multisample.Enable to determine program state
334 * constants.
335 */
336 if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES ||
337 !ctx->DriverFlags.NewMultisampleEnable) {
338 FLUSH_VERTICES(ctx, _NEW_MULTISAMPLE);
339 } else {
340 FLUSH_VERTICES(ctx, 0);
341 }
342
343 ctx->NewDriverState |= ctx->DriverFlags.NewMultisampleEnable;
344 ctx->Multisample.Enabled = state;
345
346 if (ctx->Driver.Enable) {
347 ctx->Driver.Enable(ctx, GL_MULTISAMPLE, state);
348 }
349 }
350
351 /**
352 * Helper function to enable or disable GL_FRAMEBUFFER_SRGB, skipping the
353 * check for whether the API supports it (GLES doesn't).
354 */
355 void
356 _mesa_set_framebuffer_srgb(struct gl_context *ctx, GLboolean state)
357 {
358 if (ctx->Color.sRGBEnabled == state)
359 return;
360
361 /* TODO: Switch i965 to the new flag and remove the conditional */
362 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewFramebufferSRGB ? 0 : _NEW_BUFFERS);
363 ctx->NewDriverState |= ctx->DriverFlags.NewFramebufferSRGB;
364 ctx->Color.sRGBEnabled = state;
365
366 if (ctx->Driver.Enable) {
367 ctx->Driver.Enable(ctx, GL_FRAMEBUFFER_SRGB, state);
368 }
369 }
370
371 /**
372 * Helper function to enable or disable state.
373 *
374 * \param ctx GL context.
375 * \param cap the state to enable/disable
376 * \param state whether to enable or disable the specified capability.
377 *
378 * Updates the current context and flushes the vertices as needed. For
379 * capabilities associated with extensions it verifies that those extensions
380 * are effectivly present before updating. Notifies the driver via
381 * dd_function_table::Enable.
382 */
383 void
384 _mesa_set_enable(struct gl_context *ctx, GLenum cap, GLboolean state)
385 {
386 if (MESA_VERBOSE & VERBOSE_API)
387 _mesa_debug(ctx, "%s %s (newstate is %x)\n",
388 state ? "glEnable" : "glDisable",
389 _mesa_enum_to_string(cap),
390 ctx->NewState);
391
392 switch (cap) {
393 case GL_ALPHA_TEST:
394 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
395 goto invalid_enum_error;
396 if (ctx->Color.AlphaEnabled == state)
397 return;
398 /* AlphaEnabled is used by the fixed-func fragment program */
399 FLUSH_VERTICES(ctx, _NEW_COLOR);
400 ctx->NewDriverState |= ctx->DriverFlags.NewAlphaTest;
401 ctx->Color.AlphaEnabled = state;
402 break;
403 case GL_AUTO_NORMAL:
404 if (ctx->API != API_OPENGL_COMPAT)
405 goto invalid_enum_error;
406 if (ctx->Eval.AutoNormal == state)
407 return;
408 FLUSH_VERTICES(ctx, 0);
409 vbo_exec_update_eval_maps(ctx);
410 ctx->Eval.AutoNormal = state;
411 break;
412 case GL_BLEND:
413 {
414 GLbitfield newEnabled =
415 state * ((1 << ctx->Const.MaxDrawBuffers) - 1);
416 if (newEnabled != ctx->Color.BlendEnabled) {
417 _mesa_flush_vertices_for_blend_adv(ctx, newEnabled,
418 ctx->Color._AdvancedBlendMode);
419 ctx->Color.BlendEnabled = newEnabled;
420 _mesa_update_allow_draw_out_of_order(ctx);
421 }
422 }
423 break;
424 case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */
425 case GL_CLIP_DISTANCE1:
426 case GL_CLIP_DISTANCE2:
427 case GL_CLIP_DISTANCE3:
428 case GL_CLIP_DISTANCE4:
429 case GL_CLIP_DISTANCE5:
430 case GL_CLIP_DISTANCE6:
431 case GL_CLIP_DISTANCE7:
432 {
433 const GLuint p = cap - GL_CLIP_DISTANCE0;
434
435 if (p >= ctx->Const.MaxClipPlanes)
436 goto invalid_enum_error;
437
438 if ((ctx->Transform.ClipPlanesEnabled & (1 << p))
439 == ((GLuint) state << p))
440 return;
441
442 /* The compatibility profile needs _NEW_TRANSFORM to transform
443 * clip planes according to the projection matrix.
444 */
445 if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES ||
446 !ctx->DriverFlags.NewClipPlaneEnable) {
447 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
448 } else {
449 FLUSH_VERTICES(ctx, 0);
450 }
451 ctx->NewDriverState |= ctx->DriverFlags.NewClipPlaneEnable;
452
453 if (state) {
454 ctx->Transform.ClipPlanesEnabled |= (1 << p);
455
456 /* The projection matrix transforms the clip plane. */
457 /* TODO: glEnable might not be the best place to do it. */
458 if (ctx->API == API_OPENGL_COMPAT || ctx->API == API_OPENGLES) {
459 _mesa_update_clip_plane(ctx, p);
460 ctx->NewDriverState |= ctx->DriverFlags.NewClipPlane;
461 }
462 }
463 else {
464 ctx->Transform.ClipPlanesEnabled &= ~(1 << p);
465 }
466 }
467 break;
468 case GL_COLOR_MATERIAL:
469 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
470 goto invalid_enum_error;
471 if (ctx->Light.ColorMaterialEnabled == state)
472 return;
473 FLUSH_VERTICES(ctx, _NEW_LIGHT);
474 FLUSH_CURRENT(ctx, 0);
475 ctx->Light.ColorMaterialEnabled = state;
476 if (state) {
477 _mesa_update_color_material( ctx,
478 ctx->Current.Attrib[VERT_ATTRIB_COLOR0] );
479 }
480 break;
481 case GL_CULL_FACE:
482 if (ctx->Polygon.CullFlag == state)
483 return;
484 FLUSH_VERTICES(ctx,
485 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
486 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
487 ctx->Polygon.CullFlag = state;
488 break;
489 case GL_DEPTH_TEST:
490 if (ctx->Depth.Test == state)
491 return;
492 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH);
493 ctx->NewDriverState |= ctx->DriverFlags.NewDepth;
494 ctx->Depth.Test = state;
495 _mesa_update_allow_draw_out_of_order(ctx);
496 break;
497 case GL_DEBUG_OUTPUT:
498 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB:
499 _mesa_set_debug_state_int(ctx, cap, state);
500 break;
501 case GL_DITHER:
502 if (ctx->Color.DitherFlag == state)
503 return;
504 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewBlend ? 0 : _NEW_COLOR);
505 ctx->NewDriverState |= ctx->DriverFlags.NewBlend;
506 ctx->Color.DitherFlag = state;
507 break;
508 case GL_FOG:
509 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
510 goto invalid_enum_error;
511 if (ctx->Fog.Enabled == state)
512 return;
513 FLUSH_VERTICES(ctx, _NEW_FOG);
514 ctx->Fog.Enabled = state;
515 ctx->Fog._PackedEnabledMode = state ? ctx->Fog._PackedMode : FOG_NONE;
516 break;
517 case GL_LIGHT0:
518 case GL_LIGHT1:
519 case GL_LIGHT2:
520 case GL_LIGHT3:
521 case GL_LIGHT4:
522 case GL_LIGHT5:
523 case GL_LIGHT6:
524 case GL_LIGHT7:
525 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
526 goto invalid_enum_error;
527 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled == state)
528 return;
529 FLUSH_VERTICES(ctx, _NEW_LIGHT);
530 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
531 if (state) {
532 ctx->Light._EnabledLights |= 1u << (cap - GL_LIGHT0);
533 }
534 else {
535 ctx->Light._EnabledLights &= ~(1u << (cap - GL_LIGHT0));
536 }
537 break;
538 case GL_LIGHTING:
539 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
540 goto invalid_enum_error;
541 if (ctx->Light.Enabled == state)
542 return;
543 FLUSH_VERTICES(ctx, _NEW_LIGHT);
544 ctx->Light.Enabled = state;
545 break;
546 case GL_LINE_SMOOTH:
547 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
548 goto invalid_enum_error;
549 if (ctx->Line.SmoothFlag == state)
550 return;
551 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE);
552 ctx->NewDriverState |= ctx->DriverFlags.NewLineState;
553 ctx->Line.SmoothFlag = state;
554 break;
555 case GL_LINE_STIPPLE:
556 if (ctx->API != API_OPENGL_COMPAT)
557 goto invalid_enum_error;
558 if (ctx->Line.StippleFlag == state)
559 return;
560 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLineState ? 0 : _NEW_LINE);
561 ctx->NewDriverState |= ctx->DriverFlags.NewLineState;
562 ctx->Line.StippleFlag = state;
563 break;
564 case GL_INDEX_LOGIC_OP:
565 if (ctx->API != API_OPENGL_COMPAT)
566 goto invalid_enum_error;
567 if (ctx->Color.IndexLogicOpEnabled == state)
568 return;
569 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLogicOp ? 0 : _NEW_COLOR);
570 ctx->NewDriverState |= ctx->DriverFlags.NewLogicOp;
571 ctx->Color.IndexLogicOpEnabled = state;
572 break;
573 case GL_CONSERVATIVE_RASTERIZATION_INTEL:
574 if (!_mesa_has_INTEL_conservative_rasterization(ctx))
575 goto invalid_enum_error;
576 if (ctx->IntelConservativeRasterization == state)
577 return;
578 FLUSH_VERTICES(ctx, 0);
579 ctx->NewDriverState |=
580 ctx->DriverFlags.NewIntelConservativeRasterization;
581 ctx->IntelConservativeRasterization = state;
582 break;
583 case GL_CONSERVATIVE_RASTERIZATION_NV:
584 if (!_mesa_has_NV_conservative_raster(ctx))
585 goto invalid_enum_error;
586 if (ctx->ConservativeRasterization == state)
587 return;
588 FLUSH_VERTICES(ctx, 0);
589 ctx->NewDriverState |=
590 ctx->DriverFlags.NewNvConservativeRasterization;
591 ctx->ConservativeRasterization = state;
592 break;
593 case GL_COLOR_LOGIC_OP:
594 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
595 goto invalid_enum_error;
596 if (ctx->Color.ColorLogicOpEnabled == state)
597 return;
598 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewLogicOp ? 0 : _NEW_COLOR);
599 ctx->NewDriverState |= ctx->DriverFlags.NewLogicOp;
600 ctx->Color.ColorLogicOpEnabled = state;
601 _mesa_update_allow_draw_out_of_order(ctx);
602 break;
603 case GL_MAP1_COLOR_4:
604 if (ctx->API != API_OPENGL_COMPAT)
605 goto invalid_enum_error;
606 if (ctx->Eval.Map1Color4 == state)
607 return;
608 FLUSH_VERTICES(ctx, 0);
609 vbo_exec_update_eval_maps(ctx);
610 ctx->Eval.Map1Color4 = state;
611 break;
612 case GL_MAP1_INDEX:
613 if (ctx->API != API_OPENGL_COMPAT)
614 goto invalid_enum_error;
615 if (ctx->Eval.Map1Index == state)
616 return;
617 FLUSH_VERTICES(ctx, 0);
618 vbo_exec_update_eval_maps(ctx);
619 ctx->Eval.Map1Index = state;
620 break;
621 case GL_MAP1_NORMAL:
622 if (ctx->API != API_OPENGL_COMPAT)
623 goto invalid_enum_error;
624 if (ctx->Eval.Map1Normal == state)
625 return;
626 FLUSH_VERTICES(ctx, 0);
627 vbo_exec_update_eval_maps(ctx);
628 ctx->Eval.Map1Normal = state;
629 break;
630 case GL_MAP1_TEXTURE_COORD_1:
631 if (ctx->API != API_OPENGL_COMPAT)
632 goto invalid_enum_error;
633 if (ctx->Eval.Map1TextureCoord1 == state)
634 return;
635 FLUSH_VERTICES(ctx, 0);
636 vbo_exec_update_eval_maps(ctx);
637 ctx->Eval.Map1TextureCoord1 = state;
638 break;
639 case GL_MAP1_TEXTURE_COORD_2:
640 if (ctx->API != API_OPENGL_COMPAT)
641 goto invalid_enum_error;
642 if (ctx->Eval.Map1TextureCoord2 == state)
643 return;
644 FLUSH_VERTICES(ctx, 0);
645 vbo_exec_update_eval_maps(ctx);
646 ctx->Eval.Map1TextureCoord2 = state;
647 break;
648 case GL_MAP1_TEXTURE_COORD_3:
649 if (ctx->API != API_OPENGL_COMPAT)
650 goto invalid_enum_error;
651 if (ctx->Eval.Map1TextureCoord3 == state)
652 return;
653 FLUSH_VERTICES(ctx, 0);
654 vbo_exec_update_eval_maps(ctx);
655 ctx->Eval.Map1TextureCoord3 = state;
656 break;
657 case GL_MAP1_TEXTURE_COORD_4:
658 if (ctx->API != API_OPENGL_COMPAT)
659 goto invalid_enum_error;
660 if (ctx->Eval.Map1TextureCoord4 == state)
661 return;
662 FLUSH_VERTICES(ctx, 0);
663 vbo_exec_update_eval_maps(ctx);
664 ctx->Eval.Map1TextureCoord4 = state;
665 break;
666 case GL_MAP1_VERTEX_3:
667 if (ctx->API != API_OPENGL_COMPAT)
668 goto invalid_enum_error;
669 if (ctx->Eval.Map1Vertex3 == state)
670 return;
671 FLUSH_VERTICES(ctx, 0);
672 vbo_exec_update_eval_maps(ctx);
673 ctx->Eval.Map1Vertex3 = state;
674 break;
675 case GL_MAP1_VERTEX_4:
676 if (ctx->API != API_OPENGL_COMPAT)
677 goto invalid_enum_error;
678 if (ctx->Eval.Map1Vertex4 == state)
679 return;
680 FLUSH_VERTICES(ctx, 0);
681 vbo_exec_update_eval_maps(ctx);
682 ctx->Eval.Map1Vertex4 = state;
683 break;
684 case GL_MAP2_COLOR_4:
685 if (ctx->API != API_OPENGL_COMPAT)
686 goto invalid_enum_error;
687 if (ctx->Eval.Map2Color4 == state)
688 return;
689 FLUSH_VERTICES(ctx, 0);
690 vbo_exec_update_eval_maps(ctx);
691 ctx->Eval.Map2Color4 = state;
692 break;
693 case GL_MAP2_INDEX:
694 if (ctx->API != API_OPENGL_COMPAT)
695 goto invalid_enum_error;
696 if (ctx->Eval.Map2Index == state)
697 return;
698 FLUSH_VERTICES(ctx, 0);
699 vbo_exec_update_eval_maps(ctx);
700 ctx->Eval.Map2Index = state;
701 break;
702 case GL_MAP2_NORMAL:
703 if (ctx->API != API_OPENGL_COMPAT)
704 goto invalid_enum_error;
705 if (ctx->Eval.Map2Normal == state)
706 return;
707 FLUSH_VERTICES(ctx, 0);
708 vbo_exec_update_eval_maps(ctx);
709 ctx->Eval.Map2Normal = state;
710 break;
711 case GL_MAP2_TEXTURE_COORD_1:
712 if (ctx->API != API_OPENGL_COMPAT)
713 goto invalid_enum_error;
714 if (ctx->Eval.Map2TextureCoord1 == state)
715 return;
716 FLUSH_VERTICES(ctx, 0);
717 vbo_exec_update_eval_maps(ctx);
718 ctx->Eval.Map2TextureCoord1 = state;
719 break;
720 case GL_MAP2_TEXTURE_COORD_2:
721 if (ctx->API != API_OPENGL_COMPAT)
722 goto invalid_enum_error;
723 if (ctx->Eval.Map2TextureCoord2 == state)
724 return;
725 FLUSH_VERTICES(ctx, 0);
726 vbo_exec_update_eval_maps(ctx);
727 ctx->Eval.Map2TextureCoord2 = state;
728 break;
729 case GL_MAP2_TEXTURE_COORD_3:
730 if (ctx->API != API_OPENGL_COMPAT)
731 goto invalid_enum_error;
732 if (ctx->Eval.Map2TextureCoord3 == state)
733 return;
734 FLUSH_VERTICES(ctx, 0);
735 vbo_exec_update_eval_maps(ctx);
736 ctx->Eval.Map2TextureCoord3 = state;
737 break;
738 case GL_MAP2_TEXTURE_COORD_4:
739 if (ctx->API != API_OPENGL_COMPAT)
740 goto invalid_enum_error;
741 if (ctx->Eval.Map2TextureCoord4 == state)
742 return;
743 FLUSH_VERTICES(ctx, 0);
744 vbo_exec_update_eval_maps(ctx);
745 ctx->Eval.Map2TextureCoord4 = state;
746 break;
747 case GL_MAP2_VERTEX_3:
748 if (ctx->API != API_OPENGL_COMPAT)
749 goto invalid_enum_error;
750 if (ctx->Eval.Map2Vertex3 == state)
751 return;
752 FLUSH_VERTICES(ctx, 0);
753 vbo_exec_update_eval_maps(ctx);
754 ctx->Eval.Map2Vertex3 = state;
755 break;
756 case GL_MAP2_VERTEX_4:
757 if (ctx->API != API_OPENGL_COMPAT)
758 goto invalid_enum_error;
759 if (ctx->Eval.Map2Vertex4 == state)
760 return;
761 FLUSH_VERTICES(ctx, 0);
762 vbo_exec_update_eval_maps(ctx);
763 ctx->Eval.Map2Vertex4 = state;
764 break;
765 case GL_NORMALIZE:
766 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
767 goto invalid_enum_error;
768 if (ctx->Transform.Normalize == state)
769 return;
770 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
771 ctx->Transform.Normalize = state;
772 break;
773 case GL_POINT_SMOOTH:
774 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
775 goto invalid_enum_error;
776 if (ctx->Point.SmoothFlag == state)
777 return;
778 FLUSH_VERTICES(ctx, _NEW_POINT);
779 ctx->Point.SmoothFlag = state;
780 break;
781 case GL_POLYGON_SMOOTH:
782 if (!_mesa_is_desktop_gl(ctx))
783 goto invalid_enum_error;
784 if (ctx->Polygon.SmoothFlag == state)
785 return;
786 FLUSH_VERTICES(ctx,
787 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
788 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
789 ctx->Polygon.SmoothFlag = state;
790 break;
791 case GL_POLYGON_STIPPLE:
792 if (ctx->API != API_OPENGL_COMPAT)
793 goto invalid_enum_error;
794 if (ctx->Polygon.StippleFlag == state)
795 return;
796 FLUSH_VERTICES(ctx,
797 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
798 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
799 ctx->Polygon.StippleFlag = state;
800 break;
801 case GL_POLYGON_OFFSET_POINT:
802 if (!_mesa_is_desktop_gl(ctx))
803 goto invalid_enum_error;
804 if (ctx->Polygon.OffsetPoint == state)
805 return;
806 FLUSH_VERTICES(ctx,
807 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
808 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
809 ctx->Polygon.OffsetPoint = state;
810 break;
811 case GL_POLYGON_OFFSET_LINE:
812 if (!_mesa_is_desktop_gl(ctx))
813 goto invalid_enum_error;
814 if (ctx->Polygon.OffsetLine == state)
815 return;
816 FLUSH_VERTICES(ctx,
817 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
818 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
819 ctx->Polygon.OffsetLine = state;
820 break;
821 case GL_POLYGON_OFFSET_FILL:
822 if (ctx->Polygon.OffsetFill == state)
823 return;
824 FLUSH_VERTICES(ctx,
825 ctx->DriverFlags.NewPolygonState ? 0 : _NEW_POLYGON);
826 ctx->NewDriverState |= ctx->DriverFlags.NewPolygonState;
827 ctx->Polygon.OffsetFill = state;
828 break;
829 case GL_RESCALE_NORMAL_EXT:
830 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
831 goto invalid_enum_error;
832 if (ctx->Transform.RescaleNormals == state)
833 return;
834 FLUSH_VERTICES(ctx, _NEW_TRANSFORM);
835 ctx->Transform.RescaleNormals = state;
836 break;
837 case GL_SCISSOR_TEST:
838 {
839 /* Must expand glEnable to all scissors */
840 GLbitfield newEnabled =
841 state * ((1 << ctx->Const.MaxViewports) - 1);
842 if (newEnabled != ctx->Scissor.EnableFlags) {
843 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewScissorTest ? 0 :
844 _NEW_SCISSOR);
845 ctx->NewDriverState |= ctx->DriverFlags.NewScissorTest;
846 ctx->Scissor.EnableFlags = newEnabled;
847 }
848 }
849 break;
850 case GL_STENCIL_TEST:
851 if (ctx->Stencil.Enabled == state)
852 return;
853 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewStencil ? 0 : _NEW_STENCIL);
854 ctx->NewDriverState |= ctx->DriverFlags.NewStencil;
855 ctx->Stencil.Enabled = state;
856 _mesa_update_allow_draw_out_of_order(ctx);
857 break;
858 case GL_TEXTURE_1D:
859 if (ctx->API != API_OPENGL_COMPAT)
860 goto invalid_enum_error;
861 if (!enable_texture(ctx, state, TEXTURE_1D_BIT)) {
862 return;
863 }
864 break;
865 case GL_TEXTURE_2D:
866 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
867 goto invalid_enum_error;
868 if (!enable_texture(ctx, state, TEXTURE_2D_BIT)) {
869 return;
870 }
871 break;
872 case GL_TEXTURE_3D:
873 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
874 goto invalid_enum_error;
875 if (!enable_texture(ctx, state, TEXTURE_3D_BIT)) {
876 return;
877 }
878 break;
879 case GL_TEXTURE_GEN_S:
880 case GL_TEXTURE_GEN_T:
881 case GL_TEXTURE_GEN_R:
882 case GL_TEXTURE_GEN_Q:
883 {
884 struct gl_fixedfunc_texture_unit *texUnit = get_texcoord_unit(ctx);
885
886 if (ctx->API != API_OPENGL_COMPAT)
887 goto invalid_enum_error;
888
889 if (texUnit) {
890 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S);
891 GLbitfield newenabled = texUnit->TexGenEnabled & ~coordBit;
892 if (state)
893 newenabled |= coordBit;
894 if (texUnit->TexGenEnabled == newenabled)
895 return;
896 FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
897 texUnit->TexGenEnabled = newenabled;
898 }
899 }
900 break;
901
902 case GL_TEXTURE_GEN_STR_OES:
903 /* disable S, T, and R at the same time */
904 {
905 struct gl_fixedfunc_texture_unit *texUnit = get_texcoord_unit(ctx);
906
907 if (ctx->API != API_OPENGLES)
908 goto invalid_enum_error;
909
910 if (texUnit) {
911 GLuint newenabled =
912 texUnit->TexGenEnabled & ~STR_BITS;
913 if (state)
914 newenabled |= STR_BITS;
915 if (texUnit->TexGenEnabled == newenabled)
916 return;
917 FLUSH_VERTICES(ctx, _NEW_TEXTURE_STATE);
918 texUnit->TexGenEnabled = newenabled;
919 }
920 }
921 break;
922
923 /* client-side state */
924 case GL_VERTEX_ARRAY:
925 case GL_NORMAL_ARRAY:
926 case GL_COLOR_ARRAY:
927 case GL_TEXTURE_COORD_ARRAY:
928 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
929 goto invalid_enum_error;
930 client_state( ctx, ctx->Array.VAO, cap, state );
931 return;
932 case GL_INDEX_ARRAY:
933 case GL_EDGE_FLAG_ARRAY:
934 case GL_FOG_COORDINATE_ARRAY_EXT:
935 case GL_SECONDARY_COLOR_ARRAY_EXT:
936 if (ctx->API != API_OPENGL_COMPAT)
937 goto invalid_enum_error;
938 client_state( ctx, ctx->Array.VAO, cap, state );
939 return;
940 case GL_POINT_SIZE_ARRAY_OES:
941 if (ctx->API != API_OPENGLES)
942 goto invalid_enum_error;
943 client_state( ctx, ctx->Array.VAO, cap, state );
944 return;
945
946 /* GL_ARB_texture_cube_map */
947 case GL_TEXTURE_CUBE_MAP:
948 if (!_mesa_has_ARB_texture_cube_map(ctx) &&
949 !_mesa_has_OES_texture_cube_map(ctx))
950 goto invalid_enum_error;
951 if (!enable_texture(ctx, state, TEXTURE_CUBE_BIT)) {
952 return;
953 }
954 break;
955
956 /* GL_EXT_secondary_color */
957 case GL_COLOR_SUM_EXT:
958 if (ctx->API != API_OPENGL_COMPAT)
959 goto invalid_enum_error;
960 if (ctx->Fog.ColorSumEnabled == state)
961 return;
962 FLUSH_VERTICES(ctx, _NEW_FOG);
963 ctx->Fog.ColorSumEnabled = state;
964 break;
965
966 /* GL_ARB_multisample */
967 case GL_MULTISAMPLE_ARB:
968 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
969 goto invalid_enum_error;
970 _mesa_set_multisample(ctx, state);
971 return;
972 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
973 if (ctx->Multisample.SampleAlphaToCoverage == state)
974 return;
975 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 :
976 _NEW_MULTISAMPLE);
977 ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable;
978 ctx->Multisample.SampleAlphaToCoverage = state;
979 break;
980 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
981 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
982 goto invalid_enum_error;
983 if (ctx->Multisample.SampleAlphaToOne == state)
984 return;
985 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleAlphaToXEnable ? 0 :
986 _NEW_MULTISAMPLE);
987 ctx->NewDriverState |= ctx->DriverFlags.NewSampleAlphaToXEnable;
988 ctx->Multisample.SampleAlphaToOne = state;
989 break;
990 case GL_SAMPLE_COVERAGE_ARB:
991 if (ctx->Multisample.SampleCoverage == state)
992 return;
993 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 :
994 _NEW_MULTISAMPLE);
995 ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask;
996 ctx->Multisample.SampleCoverage = state;
997 break;
998 case GL_SAMPLE_COVERAGE_INVERT_ARB:
999 if (!_mesa_is_desktop_gl(ctx))
1000 goto invalid_enum_error;
1001 if (ctx->Multisample.SampleCoverageInvert == state)
1002 return;
1003 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 :
1004 _NEW_MULTISAMPLE);
1005 ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask;
1006 ctx->Multisample.SampleCoverageInvert = state;
1007 break;
1008
1009 /* GL_ARB_sample_shading */
1010 case GL_SAMPLE_SHADING:
1011 if (!_mesa_has_ARB_sample_shading(ctx) && !_mesa_is_gles3(ctx))
1012 goto invalid_enum_error;
1013 if (ctx->Multisample.SampleShading == state)
1014 return;
1015 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleShading ? 0 :
1016 _NEW_MULTISAMPLE);
1017 ctx->NewDriverState |= ctx->DriverFlags.NewSampleShading;
1018 ctx->Multisample.SampleShading = state;
1019 break;
1020
1021 /* GL_IBM_rasterpos_clip */
1022 case GL_RASTER_POSITION_UNCLIPPED_IBM:
1023 if (ctx->API != API_OPENGL_COMPAT)
1024 goto invalid_enum_error;
1025 if (ctx->Transform.RasterPositionUnclipped == state)
1026 return;
1027 FLUSH_VERTICES(ctx, 0);
1028 ctx->Transform.RasterPositionUnclipped = state;
1029 break;
1030
1031 /* GL_NV_point_sprite */
1032 case GL_POINT_SPRITE_NV:
1033 if (!(ctx->API == API_OPENGL_COMPAT &&
1034 (_mesa_has_ARB_point_sprite(ctx) ||
1035 _mesa_has_NV_point_sprite(ctx))) &&
1036 !_mesa_has_OES_point_sprite(ctx))
1037 goto invalid_enum_error;
1038 if (ctx->Point.PointSprite == state)
1039 return;
1040 FLUSH_VERTICES(ctx, _NEW_POINT);
1041 ctx->Point.PointSprite = state;
1042 break;
1043
1044 case GL_VERTEX_PROGRAM_ARB:
1045 if (!_mesa_has_ARB_vertex_program(ctx))
1046 goto invalid_enum_error;
1047 if (ctx->VertexProgram.Enabled == state)
1048 return;
1049 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
1050 ctx->VertexProgram.Enabled = state;
1051 _mesa_update_vertex_processing_mode(ctx);
1052 break;
1053 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
1054 /* This was added with ARB_vertex_program, but it is also used with
1055 * GLSL vertex shaders on desktop.
1056 */
1057 if (!_mesa_has_ARB_vertex_program(ctx) &&
1058 ctx->API != API_OPENGL_CORE)
1059 goto invalid_enum_error;
1060 if (ctx->VertexProgram.PointSizeEnabled == state)
1061 return;
1062 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
1063 ctx->VertexProgram.PointSizeEnabled = state;
1064 break;
1065 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
1066 if (!_mesa_has_ARB_vertex_program(ctx))
1067 goto invalid_enum_error;
1068 if (ctx->VertexProgram.TwoSideEnabled == state)
1069 return;
1070 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
1071 ctx->VertexProgram.TwoSideEnabled = state;
1072 break;
1073
1074 /* GL_NV_texture_rectangle */
1075 case GL_TEXTURE_RECTANGLE_NV:
1076 if (!_mesa_has_NV_texture_rectangle(ctx))
1077 goto invalid_enum_error;
1078 if (!enable_texture(ctx, state, TEXTURE_RECT_BIT)) {
1079 return;
1080 }
1081 break;
1082
1083 /* GL_EXT_stencil_two_side */
1084 case GL_STENCIL_TEST_TWO_SIDE_EXT:
1085 if (!_mesa_has_EXT_stencil_two_side(ctx))
1086 goto invalid_enum_error;
1087 if (ctx->Stencil.TestTwoSide == state)
1088 return;
1089 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewStencil ? 0 : _NEW_STENCIL);
1090 ctx->NewDriverState |= ctx->DriverFlags.NewStencil;
1091 ctx->Stencil.TestTwoSide = state;
1092 if (state) {
1093 ctx->Stencil._BackFace = 2;
1094 } else {
1095 ctx->Stencil._BackFace = 1;
1096 }
1097 break;
1098
1099 case GL_FRAGMENT_PROGRAM_ARB:
1100 if (!_mesa_has_ARB_fragment_program(ctx))
1101 goto invalid_enum_error;
1102 if (ctx->FragmentProgram.Enabled == state)
1103 return;
1104 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
1105 ctx->FragmentProgram.Enabled = state;
1106 break;
1107
1108 /* GL_EXT_depth_bounds_test */
1109 case GL_DEPTH_BOUNDS_TEST_EXT:
1110 if (!_mesa_has_EXT_depth_bounds_test(ctx))
1111 goto invalid_enum_error;
1112 if (ctx->Depth.BoundsTest == state)
1113 return;
1114 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepth ? 0 : _NEW_DEPTH);
1115 ctx->NewDriverState |= ctx->DriverFlags.NewDepth;
1116 ctx->Depth.BoundsTest = state;
1117 break;
1118
1119 case GL_DEPTH_CLAMP:
1120 if (!_mesa_has_ARB_depth_clamp(ctx) &&
1121 !_mesa_has_EXT_depth_clamp(ctx))
1122 goto invalid_enum_error;
1123 if (ctx->Transform.DepthClampNear == state &&
1124 ctx->Transform.DepthClampFar == state)
1125 return;
1126 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepthClamp ? 0 :
1127 _NEW_TRANSFORM);
1128 ctx->NewDriverState |= ctx->DriverFlags.NewDepthClamp;
1129 ctx->Transform.DepthClampNear = state;
1130 ctx->Transform.DepthClampFar = state;
1131 break;
1132
1133 case GL_DEPTH_CLAMP_NEAR_AMD:
1134 if (!_mesa_has_AMD_depth_clamp_separate(ctx))
1135 goto invalid_enum_error;
1136 if (ctx->Transform.DepthClampNear == state)
1137 return;
1138 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepthClamp ? 0 :
1139 _NEW_TRANSFORM);
1140 ctx->NewDriverState |= ctx->DriverFlags.NewDepthClamp;
1141 ctx->Transform.DepthClampNear = state;
1142 break;
1143
1144 case GL_DEPTH_CLAMP_FAR_AMD:
1145 if (!_mesa_has_AMD_depth_clamp_separate(ctx))
1146 goto invalid_enum_error;
1147 if (ctx->Transform.DepthClampFar == state)
1148 return;
1149 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewDepthClamp ? 0 :
1150 _NEW_TRANSFORM);
1151 ctx->NewDriverState |= ctx->DriverFlags.NewDepthClamp;
1152 ctx->Transform.DepthClampFar = state;
1153 break;
1154
1155 case GL_FRAGMENT_SHADER_ATI:
1156 if (!_mesa_has_ATI_fragment_shader(ctx))
1157 goto invalid_enum_error;
1158 if (ctx->ATIFragmentShader.Enabled == state)
1159 return;
1160 FLUSH_VERTICES(ctx, _NEW_PROGRAM);
1161 ctx->ATIFragmentShader.Enabled = state;
1162 break;
1163
1164 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1165 if (!_mesa_has_ARB_seamless_cube_map(ctx))
1166 goto invalid_enum_error;
1167 if (ctx->Texture.CubeMapSeamless != state) {
1168 FLUSH_VERTICES(ctx, _NEW_TEXTURE_OBJECT);
1169 ctx->Texture.CubeMapSeamless = state;
1170 }
1171 break;
1172
1173 case GL_RASTERIZER_DISCARD:
1174 if (!(_mesa_has_EXT_transform_feedback(ctx) || _mesa_is_gles3(ctx)))
1175 goto invalid_enum_error;
1176 if (ctx->RasterDiscard != state) {
1177 FLUSH_VERTICES(ctx, 0);
1178 ctx->NewDriverState |= ctx->DriverFlags.NewRasterizerDiscard;
1179 ctx->RasterDiscard = state;
1180 }
1181 break;
1182
1183 case GL_TILE_RASTER_ORDER_FIXED_MESA:
1184 if (!_mesa_has_MESA_tile_raster_order(ctx))
1185 goto invalid_enum_error;
1186 if (ctx->TileRasterOrderFixed != state) {
1187 FLUSH_VERTICES(ctx, 0);
1188 ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder;
1189 ctx->TileRasterOrderFixed = state;
1190 }
1191 break;
1192
1193 case GL_TILE_RASTER_ORDER_INCREASING_X_MESA:
1194 if (!_mesa_has_MESA_tile_raster_order(ctx))
1195 goto invalid_enum_error;
1196 if (ctx->TileRasterOrderIncreasingX != state) {
1197 FLUSH_VERTICES(ctx, 0);
1198 ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder;
1199 ctx->TileRasterOrderIncreasingX = state;
1200 }
1201 break;
1202
1203 case GL_TILE_RASTER_ORDER_INCREASING_Y_MESA:
1204 if (!_mesa_has_MESA_tile_raster_order(ctx))
1205 goto invalid_enum_error;
1206 if (ctx->TileRasterOrderIncreasingY != state) {
1207 FLUSH_VERTICES(ctx, 0);
1208 ctx->NewDriverState |= ctx->DriverFlags.NewTileRasterOrder;
1209 ctx->TileRasterOrderIncreasingY = state;
1210 }
1211 break;
1212
1213 /* GL 3.1 primitive restart. Note: this enum is different from
1214 * GL_PRIMITIVE_RESTART_NV (which is client state).
1215 */
1216 case GL_PRIMITIVE_RESTART:
1217 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) {
1218 goto invalid_enum_error;
1219 }
1220 if (ctx->Array.PrimitiveRestart != state) {
1221 FLUSH_VERTICES(ctx, 0);
1222 ctx->Array.PrimitiveRestart = state;
1223 _mesa_update_derived_primitive_restart_state(ctx);
1224 }
1225 break;
1226
1227 case GL_PRIMITIVE_RESTART_FIXED_INDEX:
1228 if (!_mesa_is_gles3(ctx) && !_mesa_has_ARB_ES3_compatibility(ctx))
1229 goto invalid_enum_error;
1230 if (ctx->Array.PrimitiveRestartFixedIndex != state) {
1231 FLUSH_VERTICES(ctx, 0);
1232 ctx->Array.PrimitiveRestartFixedIndex = state;
1233 _mesa_update_derived_primitive_restart_state(ctx);
1234 }
1235 break;
1236
1237 /* GL3.0 - GL_framebuffer_sRGB */
1238 case GL_FRAMEBUFFER_SRGB_EXT:
1239 if (!_mesa_has_EXT_framebuffer_sRGB(ctx) &&
1240 !_mesa_has_EXT_sRGB_write_control(ctx))
1241 goto invalid_enum_error;
1242 _mesa_set_framebuffer_srgb(ctx, state);
1243 return;
1244
1245 /* GL_OES_EGL_image_external */
1246 case GL_TEXTURE_EXTERNAL_OES:
1247 if (!_mesa_has_OES_EGL_image_external(ctx))
1248 goto invalid_enum_error;
1249 if (!enable_texture(ctx, state, TEXTURE_EXTERNAL_BIT)) {
1250 return;
1251 }
1252 break;
1253
1254 /* ARB_texture_multisample */
1255 case GL_SAMPLE_MASK:
1256 if (!_mesa_has_ARB_texture_multisample(ctx) && !_mesa_is_gles31(ctx))
1257 goto invalid_enum_error;
1258 if (ctx->Multisample.SampleMask == state)
1259 return;
1260 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewSampleMask ? 0 :
1261 _NEW_MULTISAMPLE);
1262 ctx->NewDriverState |= ctx->DriverFlags.NewSampleMask;
1263 ctx->Multisample.SampleMask = state;
1264 break;
1265
1266 case GL_BLEND_ADVANCED_COHERENT_KHR:
1267 if (!_mesa_has_KHR_blend_equation_advanced_coherent(ctx))
1268 goto invalid_enum_error;
1269 if (ctx->Color.BlendCoherent == state)
1270 return;
1271 FLUSH_VERTICES(ctx, ctx->DriverFlags.NewBlend ? 0 : _NEW_COLOR);
1272 ctx->NewDriverState |= ctx->DriverFlags.NewBlend;
1273 ctx->Color.BlendCoherent = state;
1274 break;
1275
1276 case GL_BLACKHOLE_RENDER_INTEL:
1277 if (!_mesa_has_INTEL_blackhole_render(ctx))
1278 goto invalid_enum_error;
1279 if (ctx->IntelBlackholeRender == state)
1280 return;
1281 FLUSH_VERTICES(ctx, 0);
1282 ctx->IntelBlackholeRender = state;
1283 break;
1284
1285 default:
1286 goto invalid_enum_error;
1287 }
1288
1289 if (ctx->Driver.Enable) {
1290 ctx->Driver.Enable( ctx, cap, state );
1291 }
1292
1293 return;
1294
1295 invalid_enum_error:
1296 _mesa_error(ctx, GL_INVALID_ENUM, "gl%s(%s)",
1297 state ? "Enable" : "Disable", _mesa_enum_to_string(cap));
1298 }
1299
1300
1301 /**
1302 * Enable GL capability. Called by glEnable()
1303 * \param cap state to enable.
1304 */
1305 void GLAPIENTRY
1306 _mesa_Enable( GLenum cap )
1307 {
1308 GET_CURRENT_CONTEXT(ctx);
1309
1310 _mesa_set_enable( ctx, cap, GL_TRUE );
1311 }
1312
1313
1314 /**
1315 * Disable GL capability. Called by glDisable()
1316 * \param cap state to disable.
1317 */
1318 void GLAPIENTRY
1319 _mesa_Disable( GLenum cap )
1320 {
1321 GET_CURRENT_CONTEXT(ctx);
1322
1323 _mesa_set_enable( ctx, cap, GL_FALSE );
1324 }
1325
1326
1327
1328 /**
1329 * Enable/disable an indexed state var.
1330 */
1331 void
1332 _mesa_set_enablei(struct gl_context *ctx, GLenum cap,
1333 GLuint index, GLboolean state)
1334 {
1335 assert(state == 0 || state == 1);
1336 switch (cap) {
1337 case GL_BLEND:
1338 if (!ctx->Extensions.EXT_draw_buffers2) {
1339 goto invalid_enum_error;
1340 }
1341 if (index >= ctx->Const.MaxDrawBuffers) {
1342 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",
1343 state ? "glEnableIndexed" : "glDisableIndexed", index);
1344 return;
1345 }
1346 if (((ctx->Color.BlendEnabled >> index) & 1) != state) {
1347 GLbitfield enabled = ctx->Color.BlendEnabled;
1348
1349 if (state)
1350 enabled |= (1 << index);
1351 else
1352 enabled &= ~(1 << index);
1353
1354 _mesa_flush_vertices_for_blend_adv(ctx, enabled,
1355 ctx->Color._AdvancedBlendMode);
1356 ctx->Color.BlendEnabled = enabled;
1357 _mesa_update_allow_draw_out_of_order(ctx);
1358 }
1359 break;
1360 case GL_SCISSOR_TEST:
1361 if (index >= ctx->Const.MaxViewports) {
1362 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",
1363 state ? "glEnablei" : "glDisablei", index);
1364 return;
1365 }
1366 if (((ctx->Scissor.EnableFlags >> index) & 1) != state) {
1367 FLUSH_VERTICES(ctx,
1368 ctx->DriverFlags.NewScissorTest ? 0 : _NEW_SCISSOR);
1369 ctx->NewDriverState |= ctx->DriverFlags.NewScissorTest;
1370 if (state)
1371 ctx->Scissor.EnableFlags |= (1 << index);
1372 else
1373 ctx->Scissor.EnableFlags &= ~(1 << index);
1374 }
1375 break;
1376 /* EXT_direct_state_access */
1377 case GL_TEXTURE_1D:
1378 case GL_TEXTURE_2D:
1379 case GL_TEXTURE_3D:
1380 case GL_TEXTURE_CUBE_MAP:
1381 case GL_TEXTURE_GEN_S:
1382 case GL_TEXTURE_GEN_T:
1383 case GL_TEXTURE_GEN_R:
1384 case GL_TEXTURE_GEN_Q:
1385 case GL_TEXTURE_RECTANGLE_ARB: {
1386 const GLuint curTexUnitSave = ctx->Texture.CurrentUnit;
1387 if (index >= MAX2(ctx->Const.MaxCombinedTextureImageUnits,
1388 ctx->Const.MaxTextureCoordUnits)) {
1389 _mesa_error(ctx, GL_INVALID_VALUE, "%s(index=%u)",
1390 state ? "glEnablei" : "glDisablei", index);
1391 return;
1392 }
1393 _mesa_ActiveTexture(GL_TEXTURE0 + index);
1394 _mesa_set_enable( ctx, cap, state );
1395 _mesa_ActiveTexture(GL_TEXTURE0 + curTexUnitSave);
1396 break;
1397 }
1398 default:
1399 goto invalid_enum_error;
1400 }
1401 return;
1402
1403 invalid_enum_error:
1404 _mesa_error(ctx, GL_INVALID_ENUM, "%s(cap=%s)",
1405 state ? "glEnablei" : "glDisablei",
1406 _mesa_enum_to_string(cap));
1407 }
1408
1409
1410 void GLAPIENTRY
1411 _mesa_Disablei( GLenum cap, GLuint index )
1412 {
1413 GET_CURRENT_CONTEXT(ctx);
1414 _mesa_set_enablei(ctx, cap, index, GL_FALSE);
1415 }
1416
1417
1418 void GLAPIENTRY
1419 _mesa_Enablei( GLenum cap, GLuint index )
1420 {
1421 GET_CURRENT_CONTEXT(ctx);
1422 _mesa_set_enablei(ctx, cap, index, GL_TRUE);
1423 }
1424
1425
1426 GLboolean GLAPIENTRY
1427 _mesa_IsEnabledi( GLenum cap, GLuint index )
1428 {
1429 GET_CURRENT_CONTEXT(ctx);
1430 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1431 switch (cap) {
1432 case GL_BLEND:
1433 if (index >= ctx->Const.MaxDrawBuffers) {
1434 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",
1435 index);
1436 return GL_FALSE;
1437 }
1438 return (ctx->Color.BlendEnabled >> index) & 1;
1439 case GL_SCISSOR_TEST:
1440 if (index >= ctx->Const.MaxViewports) {
1441 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",
1442 index);
1443 return GL_FALSE;
1444 }
1445 return (ctx->Scissor.EnableFlags >> index) & 1;
1446 /* EXT_direct_state_access */
1447 case GL_TEXTURE_1D:
1448 case GL_TEXTURE_2D:
1449 case GL_TEXTURE_3D:
1450 case GL_TEXTURE_CUBE_MAP:
1451 case GL_TEXTURE_GEN_S:
1452 case GL_TEXTURE_GEN_T:
1453 case GL_TEXTURE_GEN_R:
1454 case GL_TEXTURE_GEN_Q:
1455 case GL_TEXTURE_RECTANGLE_ARB: {
1456 GLboolean state;
1457 const GLuint curTexUnitSave = ctx->Texture.CurrentUnit;
1458 if (index >= MAX2(ctx->Const.MaxCombinedTextureImageUnits,
1459 ctx->Const.MaxTextureCoordUnits)) {
1460 _mesa_error(ctx, GL_INVALID_VALUE, "glIsEnabledIndexed(index=%u)",
1461 index);
1462 return GL_FALSE;
1463 }
1464 _mesa_ActiveTexture(GL_TEXTURE0 + index);
1465 state = _mesa_IsEnabled(cap);
1466 _mesa_ActiveTexture(GL_TEXTURE0 + curTexUnitSave);
1467 return state;
1468 }
1469 default:
1470 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabledIndexed(cap=%s)",
1471 _mesa_enum_to_string(cap));
1472 return GL_FALSE;
1473 }
1474 }
1475
1476
1477
1478 /**
1479 * Helper function to determine whether a texture target is enabled.
1480 */
1481 static GLboolean
1482 is_texture_enabled(struct gl_context *ctx, GLbitfield bit)
1483 {
1484 const struct gl_fixedfunc_texture_unit *const texUnit =
1485 _mesa_get_fixedfunc_tex_unit(ctx, ctx->Texture.CurrentUnit);
1486
1487 if (!texUnit)
1488 return GL_FALSE;
1489
1490 return (texUnit->Enabled & bit) ? GL_TRUE : GL_FALSE;
1491 }
1492
1493
1494 /**
1495 * Return simple enable/disable state.
1496 *
1497 * \param cap state variable to query.
1498 *
1499 * Returns the state of the specified capability from the current GL context.
1500 * For the capabilities associated with extensions verifies that those
1501 * extensions are effectively present before reporting.
1502 */
1503 GLboolean GLAPIENTRY
1504 _mesa_IsEnabled( GLenum cap )
1505 {
1506 GET_CURRENT_CONTEXT(ctx);
1507 ASSERT_OUTSIDE_BEGIN_END_WITH_RETVAL(ctx, 0);
1508
1509 switch (cap) {
1510 case GL_ALPHA_TEST:
1511 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1512 goto invalid_enum_error;
1513 return ctx->Color.AlphaEnabled;
1514 case GL_AUTO_NORMAL:
1515 if (ctx->API != API_OPENGL_COMPAT)
1516 goto invalid_enum_error;
1517 return ctx->Eval.AutoNormal;
1518 case GL_BLEND:
1519 return ctx->Color.BlendEnabled & 1; /* return state for buffer[0] */
1520 case GL_CLIP_DISTANCE0: /* aka GL_CLIP_PLANE0 */
1521 case GL_CLIP_DISTANCE1:
1522 case GL_CLIP_DISTANCE2:
1523 case GL_CLIP_DISTANCE3:
1524 case GL_CLIP_DISTANCE4:
1525 case GL_CLIP_DISTANCE5:
1526 case GL_CLIP_DISTANCE6:
1527 case GL_CLIP_DISTANCE7: {
1528 const GLuint p = cap - GL_CLIP_DISTANCE0;
1529
1530 if (p >= ctx->Const.MaxClipPlanes)
1531 goto invalid_enum_error;
1532
1533 return (ctx->Transform.ClipPlanesEnabled >> p) & 1;
1534 }
1535 case GL_COLOR_MATERIAL:
1536 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1537 goto invalid_enum_error;
1538 return ctx->Light.ColorMaterialEnabled;
1539 case GL_CULL_FACE:
1540 return ctx->Polygon.CullFlag;
1541 case GL_DEBUG_OUTPUT:
1542 case GL_DEBUG_OUTPUT_SYNCHRONOUS_ARB:
1543 return (GLboolean) _mesa_get_debug_state_int(ctx, cap);
1544 case GL_DEPTH_TEST:
1545 return ctx->Depth.Test;
1546 case GL_DITHER:
1547 return ctx->Color.DitherFlag;
1548 case GL_FOG:
1549 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1550 goto invalid_enum_error;
1551 return ctx->Fog.Enabled;
1552 case GL_LIGHTING:
1553 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1554 goto invalid_enum_error;
1555 return ctx->Light.Enabled;
1556 case GL_LIGHT0:
1557 case GL_LIGHT1:
1558 case GL_LIGHT2:
1559 case GL_LIGHT3:
1560 case GL_LIGHT4:
1561 case GL_LIGHT5:
1562 case GL_LIGHT6:
1563 case GL_LIGHT7:
1564 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1565 goto invalid_enum_error;
1566 return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
1567 case GL_LINE_SMOOTH:
1568 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
1569 goto invalid_enum_error;
1570 return ctx->Line.SmoothFlag;
1571 case GL_LINE_STIPPLE:
1572 if (ctx->API != API_OPENGL_COMPAT)
1573 goto invalid_enum_error;
1574 return ctx->Line.StippleFlag;
1575 case GL_INDEX_LOGIC_OP:
1576 if (ctx->API != API_OPENGL_COMPAT)
1577 goto invalid_enum_error;
1578 return ctx->Color.IndexLogicOpEnabled;
1579 case GL_COLOR_LOGIC_OP:
1580 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
1581 goto invalid_enum_error;
1582 return ctx->Color.ColorLogicOpEnabled;
1583 case GL_MAP1_COLOR_4:
1584 if (ctx->API != API_OPENGL_COMPAT)
1585 goto invalid_enum_error;
1586 return ctx->Eval.Map1Color4;
1587 case GL_MAP1_INDEX:
1588 if (ctx->API != API_OPENGL_COMPAT)
1589 goto invalid_enum_error;
1590 return ctx->Eval.Map1Index;
1591 case GL_MAP1_NORMAL:
1592 if (ctx->API != API_OPENGL_COMPAT)
1593 goto invalid_enum_error;
1594 return ctx->Eval.Map1Normal;
1595 case GL_MAP1_TEXTURE_COORD_1:
1596 if (ctx->API != API_OPENGL_COMPAT)
1597 goto invalid_enum_error;
1598 return ctx->Eval.Map1TextureCoord1;
1599 case GL_MAP1_TEXTURE_COORD_2:
1600 if (ctx->API != API_OPENGL_COMPAT)
1601 goto invalid_enum_error;
1602 return ctx->Eval.Map1TextureCoord2;
1603 case GL_MAP1_TEXTURE_COORD_3:
1604 if (ctx->API != API_OPENGL_COMPAT)
1605 goto invalid_enum_error;
1606 return ctx->Eval.Map1TextureCoord3;
1607 case GL_MAP1_TEXTURE_COORD_4:
1608 if (ctx->API != API_OPENGL_COMPAT)
1609 goto invalid_enum_error;
1610 return ctx->Eval.Map1TextureCoord4;
1611 case GL_MAP1_VERTEX_3:
1612 if (ctx->API != API_OPENGL_COMPAT)
1613 goto invalid_enum_error;
1614 return ctx->Eval.Map1Vertex3;
1615 case GL_MAP1_VERTEX_4:
1616 if (ctx->API != API_OPENGL_COMPAT)
1617 goto invalid_enum_error;
1618 return ctx->Eval.Map1Vertex4;
1619 case GL_MAP2_COLOR_4:
1620 if (ctx->API != API_OPENGL_COMPAT)
1621 goto invalid_enum_error;
1622 return ctx->Eval.Map2Color4;
1623 case GL_MAP2_INDEX:
1624 if (ctx->API != API_OPENGL_COMPAT)
1625 goto invalid_enum_error;
1626 return ctx->Eval.Map2Index;
1627 case GL_MAP2_NORMAL:
1628 if (ctx->API != API_OPENGL_COMPAT)
1629 goto invalid_enum_error;
1630 return ctx->Eval.Map2Normal;
1631 case GL_MAP2_TEXTURE_COORD_1:
1632 if (ctx->API != API_OPENGL_COMPAT)
1633 goto invalid_enum_error;
1634 return ctx->Eval.Map2TextureCoord1;
1635 case GL_MAP2_TEXTURE_COORD_2:
1636 if (ctx->API != API_OPENGL_COMPAT)
1637 goto invalid_enum_error;
1638 return ctx->Eval.Map2TextureCoord2;
1639 case GL_MAP2_TEXTURE_COORD_3:
1640 if (ctx->API != API_OPENGL_COMPAT)
1641 goto invalid_enum_error;
1642 return ctx->Eval.Map2TextureCoord3;
1643 case GL_MAP2_TEXTURE_COORD_4:
1644 if (ctx->API != API_OPENGL_COMPAT)
1645 goto invalid_enum_error;
1646 return ctx->Eval.Map2TextureCoord4;
1647 case GL_MAP2_VERTEX_3:
1648 if (ctx->API != API_OPENGL_COMPAT)
1649 goto invalid_enum_error;
1650 return ctx->Eval.Map2Vertex3;
1651 case GL_MAP2_VERTEX_4:
1652 if (ctx->API != API_OPENGL_COMPAT)
1653 goto invalid_enum_error;
1654 return ctx->Eval.Map2Vertex4;
1655 case GL_NORMALIZE:
1656 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1657 goto invalid_enum_error;
1658 return ctx->Transform.Normalize;
1659 case GL_POINT_SMOOTH:
1660 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1661 goto invalid_enum_error;
1662 return ctx->Point.SmoothFlag;
1663 case GL_POLYGON_SMOOTH:
1664 if (!_mesa_is_desktop_gl(ctx))
1665 goto invalid_enum_error;
1666 return ctx->Polygon.SmoothFlag;
1667 case GL_POLYGON_STIPPLE:
1668 if (ctx->API != API_OPENGL_COMPAT)
1669 goto invalid_enum_error;
1670 return ctx->Polygon.StippleFlag;
1671 case GL_POLYGON_OFFSET_POINT:
1672 if (!_mesa_is_desktop_gl(ctx))
1673 goto invalid_enum_error;
1674 return ctx->Polygon.OffsetPoint;
1675 case GL_POLYGON_OFFSET_LINE:
1676 if (!_mesa_is_desktop_gl(ctx))
1677 goto invalid_enum_error;
1678 return ctx->Polygon.OffsetLine;
1679 case GL_POLYGON_OFFSET_FILL:
1680 return ctx->Polygon.OffsetFill;
1681 case GL_RESCALE_NORMAL_EXT:
1682 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1683 goto invalid_enum_error;
1684 return ctx->Transform.RescaleNormals;
1685 case GL_SCISSOR_TEST:
1686 return ctx->Scissor.EnableFlags & 1; /* return state for index 0 */
1687 case GL_STENCIL_TEST:
1688 return ctx->Stencil.Enabled;
1689 case GL_TEXTURE_1D:
1690 if (ctx->API != API_OPENGL_COMPAT)
1691 goto invalid_enum_error;
1692 return is_texture_enabled(ctx, TEXTURE_1D_BIT);
1693 case GL_TEXTURE_2D:
1694 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1695 goto invalid_enum_error;
1696 return is_texture_enabled(ctx, TEXTURE_2D_BIT);
1697 case GL_TEXTURE_3D:
1698 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1699 goto invalid_enum_error;
1700 return is_texture_enabled(ctx, TEXTURE_3D_BIT);
1701 case GL_TEXTURE_GEN_S:
1702 case GL_TEXTURE_GEN_T:
1703 case GL_TEXTURE_GEN_R:
1704 case GL_TEXTURE_GEN_Q:
1705 {
1706 const struct gl_fixedfunc_texture_unit *texUnit =
1707 get_texcoord_unit(ctx);
1708
1709 if (ctx->API != API_OPENGL_COMPAT)
1710 goto invalid_enum_error;
1711
1712 if (texUnit) {
1713 GLbitfield coordBit = S_BIT << (cap - GL_TEXTURE_GEN_S);
1714 return (texUnit->TexGenEnabled & coordBit) ? GL_TRUE : GL_FALSE;
1715 }
1716 }
1717 return GL_FALSE;
1718 case GL_TEXTURE_GEN_STR_OES:
1719 {
1720 const struct gl_fixedfunc_texture_unit *texUnit =
1721 get_texcoord_unit(ctx);
1722
1723 if (ctx->API != API_OPENGLES)
1724 goto invalid_enum_error;
1725
1726 if (texUnit) {
1727 return (texUnit->TexGenEnabled & STR_BITS) == STR_BITS
1728 ? GL_TRUE : GL_FALSE;
1729 }
1730
1731 return GL_FALSE;
1732 }
1733
1734 /* client-side state */
1735 case GL_VERTEX_ARRAY:
1736 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1737 goto invalid_enum_error;
1738 return !!(ctx->Array.VAO->Enabled & VERT_BIT_POS);
1739 case GL_NORMAL_ARRAY:
1740 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1741 goto invalid_enum_error;
1742 return !!(ctx->Array.VAO->Enabled & VERT_BIT_NORMAL);
1743 case GL_COLOR_ARRAY:
1744 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1745 goto invalid_enum_error;
1746 return !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR0);
1747 case GL_INDEX_ARRAY:
1748 if (ctx->API != API_OPENGL_COMPAT)
1749 goto invalid_enum_error;
1750 return !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR_INDEX);
1751 case GL_TEXTURE_COORD_ARRAY:
1752 if (ctx->API != API_OPENGL_COMPAT && ctx->API != API_OPENGLES)
1753 goto invalid_enum_error;
1754 return !!(ctx->Array.VAO->Enabled &
1755 VERT_BIT_TEX(ctx->Array.ActiveTexture));
1756 case GL_EDGE_FLAG_ARRAY:
1757 if (ctx->API != API_OPENGL_COMPAT)
1758 goto invalid_enum_error;
1759 return !!(ctx->Array.VAO->Enabled & VERT_BIT_EDGEFLAG);
1760 case GL_FOG_COORDINATE_ARRAY_EXT:
1761 if (ctx->API != API_OPENGL_COMPAT)
1762 goto invalid_enum_error;
1763 return !!(ctx->Array.VAO->Enabled & VERT_BIT_FOG);
1764 case GL_SECONDARY_COLOR_ARRAY_EXT:
1765 if (ctx->API != API_OPENGL_COMPAT)
1766 goto invalid_enum_error;
1767 return !!(ctx->Array.VAO->Enabled & VERT_BIT_COLOR1);
1768 case GL_POINT_SIZE_ARRAY_OES:
1769 if (ctx->API != API_OPENGLES)
1770 goto invalid_enum_error;
1771 return !!(ctx->Array.VAO->Enabled & VERT_BIT_POINT_SIZE);
1772
1773 /* GL_ARB_texture_cube_map */
1774 case GL_TEXTURE_CUBE_MAP:
1775 if (!_mesa_has_ARB_texture_cube_map(ctx) &&
1776 !_mesa_has_OES_texture_cube_map(ctx))
1777 goto invalid_enum_error;
1778 return is_texture_enabled(ctx, TEXTURE_CUBE_BIT);
1779
1780 /* GL_EXT_secondary_color */
1781 case GL_COLOR_SUM_EXT:
1782 if (ctx->API != API_OPENGL_COMPAT)
1783 goto invalid_enum_error;
1784 return ctx->Fog.ColorSumEnabled;
1785
1786 /* GL_ARB_multisample */
1787 case GL_MULTISAMPLE_ARB:
1788 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
1789 goto invalid_enum_error;
1790 return ctx->Multisample.Enabled;
1791 case GL_SAMPLE_ALPHA_TO_COVERAGE_ARB:
1792 return ctx->Multisample.SampleAlphaToCoverage;
1793 case GL_SAMPLE_ALPHA_TO_ONE_ARB:
1794 if (!_mesa_is_desktop_gl(ctx) && ctx->API != API_OPENGLES)
1795 goto invalid_enum_error;
1796 return ctx->Multisample.SampleAlphaToOne;
1797 case GL_SAMPLE_COVERAGE_ARB:
1798 return ctx->Multisample.SampleCoverage;
1799 case GL_SAMPLE_COVERAGE_INVERT_ARB:
1800 if (!_mesa_is_desktop_gl(ctx))
1801 goto invalid_enum_error;
1802 return ctx->Multisample.SampleCoverageInvert;
1803
1804 /* GL_IBM_rasterpos_clip */
1805 case GL_RASTER_POSITION_UNCLIPPED_IBM:
1806 if (ctx->API != API_OPENGL_COMPAT)
1807 goto invalid_enum_error;
1808 return ctx->Transform.RasterPositionUnclipped;
1809
1810 /* GL_NV_point_sprite */
1811 case GL_POINT_SPRITE_NV:
1812 if (!(ctx->API == API_OPENGL_COMPAT &&
1813 (_mesa_has_ARB_point_sprite(ctx) ||
1814 _mesa_has_NV_point_sprite(ctx))) &&
1815 !_mesa_has_OES_point_sprite(ctx))
1816 goto invalid_enum_error;
1817 return ctx->Point.PointSprite;
1818
1819 case GL_VERTEX_PROGRAM_ARB:
1820 if (!_mesa_has_ARB_vertex_program(ctx))
1821 goto invalid_enum_error;
1822 return ctx->VertexProgram.Enabled;
1823 case GL_VERTEX_PROGRAM_POINT_SIZE_ARB:
1824 /* This was added with ARB_vertex_program, but it is also used with
1825 * GLSL vertex shaders on desktop.
1826 */
1827 if (!_mesa_has_ARB_vertex_program(ctx) &&
1828 ctx->API != API_OPENGL_CORE)
1829 goto invalid_enum_error;
1830 return ctx->VertexProgram.PointSizeEnabled;
1831 case GL_VERTEX_PROGRAM_TWO_SIDE_ARB:
1832 if (!_mesa_has_ARB_vertex_program(ctx))
1833 goto invalid_enum_error;
1834 return ctx->VertexProgram.TwoSideEnabled;
1835
1836 /* GL_NV_texture_rectangle */
1837 case GL_TEXTURE_RECTANGLE_NV:
1838 if (!_mesa_has_NV_texture_rectangle(ctx))
1839 goto invalid_enum_error;
1840 return is_texture_enabled(ctx, TEXTURE_RECT_BIT);
1841
1842 /* GL_EXT_stencil_two_side */
1843 case GL_STENCIL_TEST_TWO_SIDE_EXT:
1844 if (!_mesa_has_EXT_stencil_two_side(ctx))
1845 goto invalid_enum_error;
1846 return ctx->Stencil.TestTwoSide;
1847
1848 case GL_FRAGMENT_PROGRAM_ARB:
1849 if (!_mesa_has_ARB_fragment_program(ctx))
1850 goto invalid_enum_error;
1851 return ctx->FragmentProgram.Enabled;
1852
1853 /* GL_EXT_depth_bounds_test */
1854 case GL_DEPTH_BOUNDS_TEST_EXT:
1855 if (!_mesa_has_EXT_depth_bounds_test(ctx))
1856 goto invalid_enum_error;
1857 return ctx->Depth.BoundsTest;
1858
1859 /* GL_ARB_depth_clamp */
1860 case GL_DEPTH_CLAMP:
1861 if (!_mesa_has_ARB_depth_clamp(ctx) &&
1862 !_mesa_has_EXT_depth_clamp(ctx))
1863 goto invalid_enum_error;
1864 return ctx->Transform.DepthClampNear ||
1865 ctx->Transform.DepthClampFar;
1866
1867 case GL_DEPTH_CLAMP_NEAR_AMD:
1868 if (!_mesa_has_AMD_depth_clamp_separate(ctx))
1869 goto invalid_enum_error;
1870 return ctx->Transform.DepthClampNear;
1871
1872 case GL_DEPTH_CLAMP_FAR_AMD:
1873 if (!_mesa_has_AMD_depth_clamp_separate(ctx))
1874 goto invalid_enum_error;
1875 return ctx->Transform.DepthClampFar;
1876
1877 case GL_FRAGMENT_SHADER_ATI:
1878 if (!_mesa_has_ATI_fragment_shader(ctx))
1879 goto invalid_enum_error;
1880 return ctx->ATIFragmentShader.Enabled;
1881
1882 case GL_TEXTURE_CUBE_MAP_SEAMLESS:
1883 if (!_mesa_has_ARB_seamless_cube_map(ctx))
1884 goto invalid_enum_error;
1885 return ctx->Texture.CubeMapSeamless;
1886
1887 case GL_RASTERIZER_DISCARD:
1888 if (!(_mesa_has_EXT_transform_feedback(ctx) || _mesa_is_gles3(ctx)))
1889 goto invalid_enum_error;
1890 return ctx->RasterDiscard;
1891
1892 /* GL_NV_primitive_restart */
1893 case GL_PRIMITIVE_RESTART_NV:
1894 if (!_mesa_has_NV_primitive_restart(ctx))
1895 goto invalid_enum_error;
1896 return ctx->Array.PrimitiveRestart;
1897
1898 /* GL 3.1 primitive restart */
1899 case GL_PRIMITIVE_RESTART:
1900 if (!_mesa_is_desktop_gl(ctx) || ctx->Version < 31) {
1901 goto invalid_enum_error;
1902 }
1903 return ctx->Array.PrimitiveRestart;
1904
1905 case GL_PRIMITIVE_RESTART_FIXED_INDEX:
1906 if (!_mesa_is_gles3(ctx) && !_mesa_has_ARB_ES3_compatibility(ctx))
1907 goto invalid_enum_error;
1908 return ctx->Array.PrimitiveRestartFixedIndex;
1909
1910 /* GL3.0 - GL_framebuffer_sRGB */
1911 case GL_FRAMEBUFFER_SRGB_EXT:
1912 if (!_mesa_has_EXT_framebuffer_sRGB(ctx) &&
1913 !_mesa_has_EXT_sRGB_write_control(ctx))
1914 goto invalid_enum_error;
1915 return ctx->Color.sRGBEnabled;
1916
1917 /* GL_OES_EGL_image_external */
1918 case GL_TEXTURE_EXTERNAL_OES:
1919 if (!_mesa_has_OES_EGL_image_external(ctx))
1920 goto invalid_enum_error;
1921 return is_texture_enabled(ctx, TEXTURE_EXTERNAL_BIT);
1922
1923 /* ARB_texture_multisample */
1924 case GL_SAMPLE_MASK:
1925 if (!_mesa_has_ARB_texture_multisample(ctx) && !_mesa_is_gles31(ctx))
1926 goto invalid_enum_error;
1927 return ctx->Multisample.SampleMask;
1928
1929 /* ARB_sample_shading */
1930 case GL_SAMPLE_SHADING:
1931 if (!_mesa_has_ARB_sample_shading(ctx) && !_mesa_is_gles3(ctx))
1932 goto invalid_enum_error;
1933 return ctx->Multisample.SampleShading;
1934
1935 case GL_BLEND_ADVANCED_COHERENT_KHR:
1936 if (!_mesa_has_KHR_blend_equation_advanced_coherent(ctx))
1937 goto invalid_enum_error;
1938 return ctx->Color.BlendCoherent;
1939
1940 case GL_CONSERVATIVE_RASTERIZATION_INTEL:
1941 if (!_mesa_has_INTEL_conservative_rasterization(ctx))
1942 goto invalid_enum_error;
1943 return ctx->IntelConservativeRasterization;
1944
1945 case GL_CONSERVATIVE_RASTERIZATION_NV:
1946 if (!_mesa_has_NV_conservative_raster(ctx))
1947 goto invalid_enum_error;
1948 return ctx->ConservativeRasterization;
1949
1950 case GL_TILE_RASTER_ORDER_FIXED_MESA:
1951 if (!_mesa_has_MESA_tile_raster_order(ctx))
1952 goto invalid_enum_error;
1953 return ctx->TileRasterOrderFixed;
1954
1955 case GL_TILE_RASTER_ORDER_INCREASING_X_MESA:
1956 if (!_mesa_has_MESA_tile_raster_order(ctx))
1957 goto invalid_enum_error;
1958 return ctx->TileRasterOrderIncreasingX;
1959
1960 case GL_TILE_RASTER_ORDER_INCREASING_Y_MESA:
1961 if (!_mesa_has_MESA_tile_raster_order(ctx))
1962 goto invalid_enum_error;
1963 return ctx->TileRasterOrderIncreasingY;
1964
1965 case GL_BLACKHOLE_RENDER_INTEL:
1966 if (!_mesa_has_INTEL_blackhole_render(ctx))
1967 goto invalid_enum_error;
1968 return ctx->IntelBlackholeRender;
1969
1970 default:
1971 goto invalid_enum_error;
1972 }
1973
1974 return GL_FALSE;
1975
1976 invalid_enum_error:
1977 _mesa_error(ctx, GL_INVALID_ENUM, "glIsEnabled(%s)",
1978 _mesa_enum_to_string(cap));
1979 return GL_FALSE;
1980 }