source: trunk/src/opengl/mesa/enable.c@ 3993

Last change on this file since 3993 was 3598, checked in by jeroen, 25 years ago

* empty log message *
File size: 22.6 KB
Line 
1/* $Id: enable.c,v 1.3 2000-05-23 20:40:32 jeroen Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version: 3.3
6 *
7 * Copyright (C) 1999 Brian Paul All Rights Reserved.
8 *
9 * Permission is hereby granted, free of charge, to any person obtaining a
10 * copy of this software and associated documentation files (the "Software"),
11 * to deal in the Software without restriction, including without limitation
12 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
13 * and/or sell copies of the Software, and to permit persons to whom the
14 * Software is furnished to do so, subject to the following conditions:
15 *
16 * The above copyright notice and this permission notice shall be included
17 * in all copies or substantial portions of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
21 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
22 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
23 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
24 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
25 */
26
27
28/* $XFree86: xc/lib/GL/mesa/src/enable.c,v 1.3 1999/04/04 00:20:23 dawes Exp $ */
29
30#ifdef PC_HEADER
31#include "all.h"
32#else
33#include "glheader.h"
34#include "types.h"
35#include "context.h"
36#include "enable.h"
37#include "light.h"
38#include "macros.h"
39#include "matrix.h"
40#include "mmath.h"
41#include "simple_list.h"
42#include "vbfill.h"
43#include "xform.h"
44#include "enums.h"
45#endif
46
47
48
49/*
50 * Perform glEnable and glDisable calls.
51 */
52void _mesa_set_enable( GLcontext *ctx, GLenum cap, GLboolean state )
53{
54 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx, "gl_enable/disable" );
55
56 if (MESA_VERBOSE & VERBOSE_API)
57 fprintf(stderr, "%s %s (newstate is %x)\n",
58 state ? "glEnable" : "glDisable",
59 gl_lookup_enum_by_nr(cap),
60 ctx->NewState);
61
62 switch (cap) {
63 case GL_ALPHA_TEST:
64 if (ctx->Color.AlphaEnabled!=state) {
65 ctx->Color.AlphaEnabled = state;
66 ctx->NewState |= NEW_RASTER_OPS;
67 }
68 break;
69 case GL_AUTO_NORMAL:
70 ctx->Eval.AutoNormal = state;
71 break;
72 case GL_BLEND:
73 if (ctx->Color.BlendEnabled!=state) {
74 ctx->Color.BlendEnabled = state;
75 /* The following needed to accomodate 1.0 RGB logic op blending */
76 if (ctx->Color.BlendEquation==GL_LOGIC_OP && state) {
77 ctx->Color.ColorLogicOpEnabled = GL_TRUE;
78 }
79 else {
80 ctx->Color.ColorLogicOpEnabled = GL_FALSE;
81 }
82 ctx->NewState |= NEW_RASTER_OPS;
83 }
84 break;
85 case GL_CLIP_PLANE0:
86 case GL_CLIP_PLANE1:
87 case GL_CLIP_PLANE2:
88 case GL_CLIP_PLANE3:
89 case GL_CLIP_PLANE4:
90 case GL_CLIP_PLANE5:
91 if (cap >= GL_CLIP_PLANE0 &&
92 cap <= GL_CLIP_PLANE5 &&
93 ctx->Transform.ClipEnabled[cap-GL_CLIP_PLANE0] != state)
94 {
95 GLuint p = cap-GL_CLIP_PLANE0;
96
97 ctx->Transform.ClipEnabled[p] = state;
98 ctx->NewState |= NEW_USER_CLIP;
99
100 if (state) {
101 ctx->Enabled |= ENABLE_USERCLIP;
102 ctx->Transform.AnyClip++;
103
104 if (ctx->ProjectionMatrix.flags & MAT_DIRTY_ALL_OVER) {
105 gl_matrix_analyze( &ctx->ProjectionMatrix );
106 }
107
108 gl_transform_vector( ctx->Transform.ClipUserPlane[p],
109 ctx->Transform.EyeUserPlane[p],
110 ctx->ProjectionMatrix.inv );
111 } else {
112 if (--ctx->Transform.AnyClip == 0)
113 ctx->Enabled &= ~ENABLE_USERCLIP;
114 }
115 }
116 break;
117 case GL_COLOR_MATERIAL:
118 if (ctx->Light.ColorMaterialEnabled!=state) {
119 ctx->Light.ColorMaterialEnabled = state;
120 ctx->NewState |= NEW_LIGHTING;
121 if (state)
122 gl_update_color_material( ctx, ctx->Current.ByteColor );
123 }
124 break;
125 case GL_CULL_FACE:
126 if (ctx->Polygon.CullFlag!=state) {
127 ctx->Polygon.CullFlag = state;
128 ctx->TriangleCaps ^= DD_TRI_CULL;
129 ctx->NewState |= NEW_POLYGON;
130 }
131 break;
132 case GL_DEPTH_TEST:
133 if (state && ctx->Visual->DepthBits==0) {
134 gl_warning(ctx,"glEnable(GL_DEPTH_TEST) but no depth buffer");
135 return;
136 }
137 if (ctx->Depth.Test!=state) {
138 ctx->Depth.Test = state;
139 ctx->NewState |= NEW_RASTER_OPS;
140 }
141 break;
142 case GL_DITHER:
143 if (ctx->NoDither) {
144 /* MESA_NO_DITHER env var */
145 state = GL_FALSE;
146 }
147 if (ctx->Color.DitherFlag!=state) {
148 ctx->Color.DitherFlag = state;
149 ctx->NewState |= NEW_RASTER_OPS;
150 }
151 break;
152 case GL_FOG:
153 if (ctx->Fog.Enabled!=state) {
154 ctx->Fog.Enabled = state;
155 ctx->Enabled ^= ENABLE_FOG;
156 ctx->NewState |= NEW_FOG|NEW_RASTER_OPS;
157 }
158 break;
159 case GL_LIGHT0:
160 case GL_LIGHT1:
161 case GL_LIGHT2:
162 case GL_LIGHT3:
163 case GL_LIGHT4:
164 case GL_LIGHT5:
165 case GL_LIGHT6:
166 case GL_LIGHT7:
167 if (ctx->Light.Light[cap-GL_LIGHT0].Enabled != state)
168 {
169 ctx->Light.Light[cap-GL_LIGHT0].Enabled = state;
170
171 if (state) {
172 insert_at_tail(&ctx->Light.EnabledList,
173 &ctx->Light.Light[cap-GL_LIGHT0]);
174 if (ctx->Light.Enabled)
175 ctx->Enabled |= ENABLE_LIGHT;
176 } else {
177 remove_from_list(&ctx->Light.Light[cap-GL_LIGHT0]);
178 if (is_empty_list(&ctx->Light.EnabledList))
179 ctx->Enabled &= ~ENABLE_LIGHT;
180 }
181
182 ctx->NewState |= NEW_LIGHTING;
183 }
184 break;
185 case GL_LIGHTING:
186 if (ctx->Light.Enabled!=state) {
187 ctx->Light.Enabled = state;
188 ctx->Enabled &= ~ENABLE_LIGHT;
189 if (state)
190 ctx->Enabled |= ENABLE_LIGHT;
191 ctx->NewState |= NEW_LIGHTING;
192 }
193 break;
194 case GL_LINE_SMOOTH:
195 if (ctx->Line.SmoothFlag!=state) {
196 ctx->Line.SmoothFlag = state;
197 ctx->NewState |= NEW_RASTER_OPS;
198 }
199 break;
200 case GL_LINE_STIPPLE:
201 if (ctx->Line.StippleFlag!=state) {
202 ctx->Line.StippleFlag = state;
203 ctx->TriangleCaps ^= DD_LINE_STIPPLE;
204 ctx->NewState |= NEW_RASTER_OPS;
205 }
206 break;
207 case GL_INDEX_LOGIC_OP:
208 if (ctx->Color.IndexLogicOpEnabled!=state) {
209 ctx->Color.IndexLogicOpEnabled = state;
210 ctx->NewState |= NEW_RASTER_OPS;
211 }
212 break;
213 case GL_COLOR_LOGIC_OP:
214 if (ctx->Color.ColorLogicOpEnabled!=state) {
215 ctx->Color.ColorLogicOpEnabled = state;
216 ctx->NewState |= NEW_RASTER_OPS;
217 }
218 break;
219 case GL_MAP1_COLOR_4:
220 ctx->Eval.Map1Color4 = state;
221 break;
222 case GL_MAP1_INDEX:
223 ctx->Eval.Map1Index = state;
224 break;
225 case GL_MAP1_NORMAL:
226 ctx->Eval.Map1Normal = state;
227 break;
228 case GL_MAP1_TEXTURE_COORD_1:
229 ctx->Eval.Map1TextureCoord1 = state;
230 break;
231 case GL_MAP1_TEXTURE_COORD_2:
232 ctx->Eval.Map1TextureCoord2 = state;
233 break;
234 case GL_MAP1_TEXTURE_COORD_3:
235 ctx->Eval.Map1TextureCoord3 = state;
236 break;
237 case GL_MAP1_TEXTURE_COORD_4:
238 ctx->Eval.Map1TextureCoord4 = state;
239 break;
240 case GL_MAP1_VERTEX_3:
241 ctx->Eval.Map1Vertex3 = state;
242 break;
243 case GL_MAP1_VERTEX_4:
244 ctx->Eval.Map1Vertex4 = state;
245 break;
246 case GL_MAP2_COLOR_4:
247 ctx->Eval.Map2Color4 = state;
248 break;
249 case GL_MAP2_INDEX:
250 ctx->Eval.Map2Index = state;
251 break;
252 case GL_MAP2_NORMAL:
253 ctx->Eval.Map2Normal = state;
254 break;
255 case GL_MAP2_TEXTURE_COORD_1:
256 ctx->Eval.Map2TextureCoord1 = state;
257 break;
258 case GL_MAP2_TEXTURE_COORD_2:
259 ctx->Eval.Map2TextureCoord2 = state;
260 break;
261 case GL_MAP2_TEXTURE_COORD_3:
262 ctx->Eval.Map2TextureCoord3 = state;
263 break;
264 case GL_MAP2_TEXTURE_COORD_4:
265 ctx->Eval.Map2TextureCoord4 = state;
266 break;
267 case GL_MAP2_VERTEX_3:
268 ctx->Eval.Map2Vertex3 = state;
269 break;
270 case GL_MAP2_VERTEX_4:
271 ctx->Eval.Map2Vertex4 = state;
272 break;
273 case GL_NORMALIZE:
274 if (ctx->Transform.Normalize != state) {
275 ctx->Transform.Normalize = state;
276 ctx->NewState |= NEW_NORMAL_TRANSFORM|NEW_LIGHTING;
277 ctx->Enabled ^= ENABLE_NORMALIZE;
278 }
279 break;
280 case GL_POINT_SMOOTH:
281 if (ctx->Point.SmoothFlag!=state) {
282 ctx->Point.SmoothFlag = state;
283 ctx->NewState |= NEW_RASTER_OPS;
284 }
285 break;
286 case GL_POLYGON_SMOOTH:
287 if (ctx->Polygon.SmoothFlag!=state) {
288 ctx->Polygon.SmoothFlag = state;
289 ctx->NewState |= NEW_RASTER_OPS;
290 }
291 break;
292 case GL_POLYGON_STIPPLE:
293 if (ctx->Polygon.StippleFlag!=state) {
294 ctx->Polygon.StippleFlag = state;
295 ctx->TriangleCaps ^= DD_TRI_STIPPLE;
296 ctx->NewState |= NEW_RASTER_OPS;
297 }
298 break;
299 case GL_POLYGON_OFFSET_POINT:
300 if (ctx->Polygon.OffsetPoint!=state) {
301 ctx->Polygon.OffsetPoint = state;
302 ctx->NewState |= NEW_POLYGON;
303 }
304 break;
305 case GL_POLYGON_OFFSET_LINE:
306 if (ctx->Polygon.OffsetLine!=state) {
307 ctx->Polygon.OffsetLine = state;
308 ctx->NewState |= NEW_POLYGON;
309 }
310 break;
311 case GL_POLYGON_OFFSET_FILL:
312 /*case GL_POLYGON_OFFSET_EXT:*/
313 if (ctx->Polygon.OffsetFill!=state) {
314 ctx->Polygon.OffsetFill = state;
315 ctx->NewState |= NEW_POLYGON;
316 }
317 break;
318 case GL_RESCALE_NORMAL_EXT:
319 if (ctx->Transform.RescaleNormals != state) {
320 ctx->Transform.RescaleNormals = state;
321 ctx->NewState |= NEW_NORMAL_TRANSFORM|NEW_LIGHTING;
322 ctx->Enabled ^= ENABLE_RESCALE;
323 }
324 break;
325 case GL_SCISSOR_TEST:
326 if (ctx->Scissor.Enabled!=state) {
327 ctx->Scissor.Enabled = state;
328 ctx->NewState |= NEW_RASTER_OPS;
329 }
330 break;
331 case GL_SHARED_TEXTURE_PALETTE_EXT:
332 ctx->Texture.SharedPalette = state;
333 break;
334 case GL_STENCIL_TEST:
335 if (state && ctx->Visual->StencilBits==0) {
336 gl_warning(ctx, "glEnable(GL_STENCIL_TEST) but no stencil buffer");
337 return;
338 }
339 if (ctx->Stencil.Enabled!=state) {
340 ctx->Stencil.Enabled = state;
341 ctx->NewState |= NEW_RASTER_OPS;
342 ctx->TriangleCaps ^= DD_STENCIL;
343 }
344 break;
345 case GL_TEXTURE_1D:
346 if (ctx->Visual->RGBAflag) {
347 const GLuint curr = ctx->Texture.CurrentUnit;
348 const GLuint flag = TEXTURE0_1D << (curr * 4);
349 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
350 ctx->NewState |= NEW_TEXTURE_ENABLE;
351 if (state) {
352 texUnit->Enabled |= TEXTURE0_1D;
353 ctx->Enabled |= flag;
354 }
355 else {
356 texUnit->Enabled &= ~TEXTURE0_1D;
357 ctx->Enabled &= ~flag;
358 }
359 }
360 break;
361 case GL_TEXTURE_2D:
362 if (ctx->Visual->RGBAflag) {
363 const GLuint curr = ctx->Texture.CurrentUnit;
364 const GLuint flag = TEXTURE0_2D << (curr * 4);
365 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
366 ctx->NewState |= NEW_TEXTURE_ENABLE;
367 if (state) {
368 texUnit->Enabled |= TEXTURE0_2D;
369 ctx->Enabled |= flag;
370 }
371 else {
372 texUnit->Enabled &= ~TEXTURE0_2D;
373 ctx->Enabled &= ~flag;
374 }
375 }
376 break;
377 case GL_TEXTURE_3D:
378 if (ctx->Visual->RGBAflag) {
379 const GLuint curr = ctx->Texture.CurrentUnit;
380 const GLuint flag = TEXTURE0_3D << (curr * 4);
381 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[curr];
382 ctx->NewState |= NEW_TEXTURE_ENABLE;
383 if (state) {
384 texUnit->Enabled |= TEXTURE0_3D;
385 ctx->Enabled |= flag;
386 }
387 else {
388 texUnit->Enabled &= ~TEXTURE0_3D;
389 ctx->Enabled &= ~flag;
390 }
391 }
392 break;
393 case GL_TEXTURE_GEN_Q:
394 {
395 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
396 if (state)
397 texUnit->TexGenEnabled |= Q_BIT;
398 else
399 texUnit->TexGenEnabled &= ~Q_BIT;
400 ctx->NewState |= NEW_TEXTURING;
401 }
402 break;
403 case GL_TEXTURE_GEN_R:
404 {
405 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
406 if (state)
407 texUnit->TexGenEnabled |= R_BIT;
408 else
409 texUnit->TexGenEnabled &= ~R_BIT;
410 ctx->NewState |= NEW_TEXTURING;
411 }
412 break;
413 case GL_TEXTURE_GEN_S:
414 {
415 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
416 if (state)
417 texUnit->TexGenEnabled |= S_BIT;
418 else
419 texUnit->TexGenEnabled &= ~S_BIT;
420 ctx->NewState |= NEW_TEXTURING;
421 }
422 break;
423 case GL_TEXTURE_GEN_T:
424 {
425 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
426 if (state)
427 texUnit->TexGenEnabled |= T_BIT;
428 else
429 texUnit->TexGenEnabled &= ~T_BIT;
430 ctx->NewState |= NEW_TEXTURING;
431 }
432 break;
433
434 /*
435 * CLIENT STATE!!!
436 */
437 case GL_VERTEX_ARRAY:
438 ctx->Array.Vertex.Enabled = state;
439 break;
440 case GL_NORMAL_ARRAY:
441 ctx->Array.Normal.Enabled = state;
442 break;
443 case GL_COLOR_ARRAY:
444 ctx->Array.Color.Enabled = state;
445 break;
446 case GL_INDEX_ARRAY:
447 ctx->Array.Index.Enabled = state;
448 break;
449 case GL_TEXTURE_COORD_ARRAY:
450 ctx->Array.TexCoord[ctx->Array.ActiveTexture].Enabled = state;
451 break;
452 case GL_EDGE_FLAG_ARRAY:
453 ctx->Array.EdgeFlag.Enabled = state;
454 break;
455
456 /* GL_HP_occlusion_test */
457 case GL_OCCLUSION_TEST_HP:
458 if (ctx->Extensions.HaveHpOcclusionTest) {
459 ctx->Depth.OcclusionTest = state;
460 ctx->NewState |= NEW_RASTER_OPS;
461 }
462 else {
463 gl_error( ctx, GL_INVALID_ENUM, state ? "glEnable": "glDisable" );
464 return;
465 }
466 break;
467
468 default:
469 if (state) {
470 gl_error( ctx, GL_INVALID_ENUM, "glEnable" );
471 }
472 else {
473 gl_error( ctx, GL_INVALID_ENUM, "glDisable" );
474 }
475 return;
476 }
477
478 if (ctx->Driver.Enable) {
479 (*ctx->Driver.Enable)( ctx, cap, state );
480 }
481}
482
483
484
485
486void
487_mesa_Enable( GLenum cap )
488{
489 GET_CURRENT_CONTEXT(ctx);
490 _mesa_set_enable( ctx, cap, GL_TRUE );
491}
492
493
494
495void
496_mesa_Disable( GLenum cap )
497{
498 GET_CURRENT_CONTEXT(ctx);
499 _mesa_set_enable( ctx, cap, GL_FALSE );
500}
501
502
503
504GLboolean
505_mesa_IsEnabled( GLenum cap )
506{
507 GET_CURRENT_CONTEXT(ctx);
508 switch (cap) {
509 case GL_ALPHA_TEST:
510 return ctx->Color.AlphaEnabled;
511 case GL_AUTO_NORMAL:
512 return ctx->Eval.AutoNormal;
513 case GL_BLEND:
514 return ctx->Color.BlendEnabled;
515 case GL_CLIP_PLANE0:
516 case GL_CLIP_PLANE1:
517 case GL_CLIP_PLANE2:
518 case GL_CLIP_PLANE3:
519 case GL_CLIP_PLANE4:
520 case GL_CLIP_PLANE5:
521 return ctx->Transform.ClipEnabled[cap-GL_CLIP_PLANE0];
522 case GL_COLOR_MATERIAL:
523 return ctx->Light.ColorMaterialEnabled;
524 case GL_CULL_FACE:
525 return ctx->Polygon.CullFlag;
526 case GL_DEPTH_TEST:
527 return ctx->Depth.Test;
528 case GL_DITHER:
529 return ctx->Color.DitherFlag;
530 case GL_FOG:
531 return ctx->Fog.Enabled;
532 case GL_LIGHTING:
533 return ctx->Light.Enabled;
534 case GL_LIGHT0:
535 case GL_LIGHT1:
536 case GL_LIGHT2:
537 case GL_LIGHT3:
538 case GL_LIGHT4:
539 case GL_LIGHT5:
540 case GL_LIGHT6:
541 case GL_LIGHT7:
542 return ctx->Light.Light[cap-GL_LIGHT0].Enabled;
543 case GL_LINE_SMOOTH:
544 return ctx->Line.SmoothFlag;
545 case GL_LINE_STIPPLE:
546 return ctx->Line.StippleFlag;
547 case GL_INDEX_LOGIC_OP:
548 return ctx->Color.IndexLogicOpEnabled;
549 case GL_COLOR_LOGIC_OP:
550 return ctx->Color.ColorLogicOpEnabled;
551 case GL_MAP1_COLOR_4:
552 return ctx->Eval.Map1Color4;
553 case GL_MAP1_INDEX:
554 return ctx->Eval.Map1Index;
555 case GL_MAP1_NORMAL:
556 return ctx->Eval.Map1Normal;
557 case GL_MAP1_TEXTURE_COORD_1:
558 return ctx->Eval.Map1TextureCoord1;
559 case GL_MAP1_TEXTURE_COORD_2:
560 return ctx->Eval.Map1TextureCoord2;
561 case GL_MAP1_TEXTURE_COORD_3:
562 return ctx->Eval.Map1TextureCoord3;
563 case GL_MAP1_TEXTURE_COORD_4:
564 return ctx->Eval.Map1TextureCoord4;
565 case GL_MAP1_VERTEX_3:
566 return ctx->Eval.Map1Vertex3;
567 case GL_MAP1_VERTEX_4:
568 return ctx->Eval.Map1Vertex4;
569 case GL_MAP2_COLOR_4:
570 return ctx->Eval.Map2Color4;
571 case GL_MAP2_INDEX:
572 return ctx->Eval.Map2Index;
573 case GL_MAP2_NORMAL:
574 return ctx->Eval.Map2Normal;
575 case GL_MAP2_TEXTURE_COORD_1:
576 return ctx->Eval.Map2TextureCoord1;
577 case GL_MAP2_TEXTURE_COORD_2:
578 return ctx->Eval.Map2TextureCoord2;
579 case GL_MAP2_TEXTURE_COORD_3:
580 return ctx->Eval.Map2TextureCoord3;
581 case GL_MAP2_TEXTURE_COORD_4:
582 return ctx->Eval.Map2TextureCoord4;
583 case GL_MAP2_VERTEX_3:
584 return ctx->Eval.Map2Vertex3;
585 case GL_MAP2_VERTEX_4:
586 return ctx->Eval.Map2Vertex4;
587 case GL_NORMALIZE:
588 return ctx->Transform.Normalize;
589 case GL_POINT_SMOOTH:
590 return ctx->Point.SmoothFlag;
591 case GL_POLYGON_SMOOTH:
592 return ctx->Polygon.SmoothFlag;
593 case GL_POLYGON_STIPPLE:
594 return ctx->Polygon.StippleFlag;
595 case GL_POLYGON_OFFSET_POINT:
596 return ctx->Polygon.OffsetPoint;
597 case GL_POLYGON_OFFSET_LINE:
598 return ctx->Polygon.OffsetLine;
599 case GL_POLYGON_OFFSET_FILL:
600 /*case GL_POLYGON_OFFSET_EXT:*/
601 return ctx->Polygon.OffsetFill;
602 case GL_RESCALE_NORMAL_EXT:
603 return ctx->Transform.RescaleNormals;
604 case GL_SCISSOR_TEST:
605 return ctx->Scissor.Enabled;
606 case GL_SHARED_TEXTURE_PALETTE_EXT:
607 return ctx->Texture.SharedPalette;
608 case GL_STENCIL_TEST:
609 return ctx->Stencil.Enabled;
610 case GL_TEXTURE_1D:
611 {
612 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
613 return (texUnit->Enabled & TEXTURE0_1D) ? GL_TRUE : GL_FALSE;
614 }
615 case GL_TEXTURE_2D:
616 {
617 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
618 return (texUnit->Enabled & TEXTURE0_2D) ? GL_TRUE : GL_FALSE;
619 }
620 case GL_TEXTURE_3D:
621 {
622 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
623 return (texUnit->Enabled & TEXTURE0_3D) ? GL_TRUE : GL_FALSE;
624 }
625 case GL_TEXTURE_GEN_Q:
626 {
627 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
628 return (texUnit->TexGenEnabled & Q_BIT) ? GL_TRUE : GL_FALSE;
629 }
630 case GL_TEXTURE_GEN_R:
631 {
632 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
633 return (texUnit->TexGenEnabled & R_BIT) ? GL_TRUE : GL_FALSE;
634 }
635 case GL_TEXTURE_GEN_S:
636 {
637 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
638 return (texUnit->TexGenEnabled & S_BIT) ? GL_TRUE : GL_FALSE;
639 }
640 case GL_TEXTURE_GEN_T:
641 {
642 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
643 return (texUnit->TexGenEnabled & T_BIT) ? GL_TRUE : GL_FALSE;
644 }
645
646 /*
647 * CLIENT STATE!!!
648 */
649 case GL_VERTEX_ARRAY:
650 return ctx->Array.Vertex.Enabled;
651 case GL_NORMAL_ARRAY:
652 return ctx->Array.Normal.Enabled;
653 case GL_COLOR_ARRAY:
654 return ctx->Array.Color.Enabled;
655 case GL_INDEX_ARRAY:
656 return ctx->Array.Index.Enabled;
657 case GL_TEXTURE_COORD_ARRAY:
658 return ctx->Array.TexCoord[ctx->Array.ActiveTexture].Enabled;
659 case GL_EDGE_FLAG_ARRAY:
660 return ctx->Array.EdgeFlag.Enabled;
661
662 /* GL_HP_occlusion_test */
663 case GL_OCCLUSION_TEST_HP:
664 if (ctx->Extensions.HaveHpOcclusionTest) {
665 return ctx->Depth.OcclusionTest;
666 }
667 else {
668 gl_error( ctx, GL_INVALID_ENUM, "glIsEnabled" );
669 return GL_FALSE;
670 }
671
672 default:
673 gl_error( ctx, GL_INVALID_ENUM, "glIsEnabled" );
674 return GL_FALSE;
675 }
676}
677
678
679
680
681static void
682client_state( GLcontext *ctx, GLenum cap, GLboolean state )
683{
684 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH( ctx,
685 (state
686 ? "glEnableClientState"
687 : "glDisableClientState") );
688
689 switch (cap) {
690 case GL_VERTEX_ARRAY:
691 ctx->Array.Vertex.Enabled = state;
692 break;
693 case GL_NORMAL_ARRAY:
694 ctx->Array.Normal.Enabled = state;
695 break;
696 case GL_COLOR_ARRAY:
697 ctx->Array.Color.Enabled = state;
698 break;
699 case GL_INDEX_ARRAY:
700 ctx->Array.Index.Enabled = state;
701 break;
702 case GL_TEXTURE_COORD_ARRAY:
703 ctx->Array.TexCoord[ctx->Array.ActiveTexture].Enabled = state;
704 break;
705 case GL_EDGE_FLAG_ARRAY:
706 ctx->Array.EdgeFlag.Enabled = state;
707 break;
708 default:
709 gl_error( ctx, GL_INVALID_ENUM, "glEnable/DisableClientState" );
710 }
711
712 ctx->NewState |= NEW_CLIENT_STATE;
713}
714
715
716
717void
718_mesa_EnableClientState( GLenum cap )
719{
720 GET_CURRENT_CONTEXT(ctx);
721 client_state( ctx, cap, GL_TRUE );
722}
723
724
725
726void
727_mesa_DisableClientState( GLenum cap )
728{
729 GET_CURRENT_CONTEXT(ctx);
730 client_state( ctx, cap, GL_FALSE );
731}
732
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