source: trunk/src/opengl/mesa/texstate.c@ 2970

Last change on this file since 2970 was 2962, checked in by jeroen, 25 years ago

* empty log message *
File size: 33.9 KB
Line 
1/* $Id: texstate.c,v 1.2 2000-03-01 18:49:36 jeroen Exp $ */
2
3/*
4 * Mesa 3-D graphics library
5 * Version: 3.1
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
29#ifdef PC_HEADER
30#include "all.h"
31#else
32#ifndef XFree86Server
33#include <assert.h>
34#include <stdio.h>
35#else
36#include "GL/xf86glx.h"
37#endif
38#include "types.h"
39#include "context.h"
40#include "enums.h"
41#include "extensions.h"
42#include "macros.h"
43#include "matrix.h"
44#include "texobj.h"
45#include "texstate.h"
46#include "texture.h"
47#include "xform.h"
48#endif
49
50
51
52#ifdef SPECIALCAST
53/* Needed for an Amiga compiler */
54#define ENUM_TO_FLOAT(X) ((GLfloat)(GLint)(X))
55#define ENUM_TO_DOUBLE(X) ((GLdouble)(GLint)(X))
56#else
57/* all other compilers */
58#define ENUM_TO_FLOAT(X) ((GLfloat)(X))
59#define ENUM_TO_DOUBLE(X) ((GLdouble)(X))
60#endif
61
62
63
64
65/**********************************************************************/
66/* Texture Environment */
67/**********************************************************************/
68
69
70void gl_TexEnvfv( GLcontext *ctx,
71 GLenum target, GLenum pname, const GLfloat *param )
72{
73 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
74
75 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexEnv");
76
77 if (target!=GL_TEXTURE_ENV) {
78 gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(target)" );
79 return;
80 }
81
82 if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
83 fprintf(stderr, "glTexEnv %s %s %.1f(%s) ...\n",
84 gl_lookup_enum_by_nr(target),
85 gl_lookup_enum_by_nr(pname),
86 *param,
87 gl_lookup_enum_by_nr((GLenum) (GLint) *param));
88
89
90 if (pname==GL_TEXTURE_ENV_MODE) {
91 GLenum mode = (GLenum) (GLint) *param;
92 switch (mode) {
93 case GL_MODULATE:
94 case GL_BLEND:
95 case GL_DECAL:
96 case GL_REPLACE:
97 if (texUnit->EnvMode == mode)
98 return; /* no change */
99
100 if (MESA_VERBOSE & (VERBOSE_STATE|VERBOSE_TEXTURE))
101 fprintf(stderr, "glTexEnv: old mode %s, new mode %s\n",
102 gl_lookup_enum_by_nr(texUnit->EnvMode),
103 gl_lookup_enum_by_nr(mode));
104
105 texUnit->EnvMode = mode;
106 ctx->NewState |= NEW_TEXTURE_ENV;
107 break;
108 default:
109 gl_error( ctx, GL_INVALID_VALUE, "glTexEnv(param)" );
110 return;
111 }
112 }
113 else if (pname==GL_TEXTURE_ENV_COLOR) {
114 texUnit->EnvColor[0] = CLAMP( param[0], 0.0F, 1.0F );
115 texUnit->EnvColor[1] = CLAMP( param[1], 0.0F, 1.0F );
116 texUnit->EnvColor[2] = CLAMP( param[2], 0.0F, 1.0F );
117 texUnit->EnvColor[3] = CLAMP( param[3], 0.0F, 1.0F );
118 }
119 else {
120 gl_error( ctx, GL_INVALID_ENUM, "glTexEnv(pname)" );
121 return;
122 }
123
124 /* Tell device driver about the new texture environment */
125 if (ctx->Driver.TexEnv) {
126 (*ctx->Driver.TexEnv)( ctx, pname, param );
127 }
128}
129
130
131
132
133
134void gl_GetTexEnvfv( GLcontext *ctx,
135 GLenum target, GLenum pname, GLfloat *params )
136{
137 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
138 if (target!=GL_TEXTURE_ENV) {
139 gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(target)" );
140 return;
141 }
142 switch (pname) {
143 case GL_TEXTURE_ENV_MODE:
144 *params = ENUM_TO_FLOAT(texUnit->EnvMode);
145 break;
146 case GL_TEXTURE_ENV_COLOR:
147 COPY_4FV( params, texUnit->EnvColor );
148 break;
149 default:
150 gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnvfv(pname)" );
151 }
152}
153
154
155void gl_GetTexEnviv( GLcontext *ctx,
156 GLenum target, GLenum pname, GLint *params )
157{
158 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
159 if (target!=GL_TEXTURE_ENV) {
160 gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(target)" );
161 return;
162 }
163 switch (pname) {
164 case GL_TEXTURE_ENV_MODE:
165 *params = (GLint) texUnit->EnvMode;
166 break;
167 case GL_TEXTURE_ENV_COLOR:
168 params[0] = FLOAT_TO_INT( texUnit->EnvColor[0] );
169 params[1] = FLOAT_TO_INT( texUnit->EnvColor[1] );
170 params[2] = FLOAT_TO_INT( texUnit->EnvColor[2] );
171 params[3] = FLOAT_TO_INT( texUnit->EnvColor[3] );
172 break;
173 default:
174 gl_error( ctx, GL_INVALID_ENUM, "glGetTexEnviv(pname)" );
175 }
176}
177
178
179
180
181/**********************************************************************/
182/* Texture Parameters */
183/**********************************************************************/
184
185
186void gl_TexParameterfv( GLcontext *ctx,
187 GLenum target, GLenum pname, const GLfloat *params )
188{
189 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
190 GLenum eparam = (GLenum) (GLint) params[0];
191 struct gl_texture_object *texObj;
192
193 if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
194 fprintf(stderr, "texPARAM %s %s %d...\n",
195 gl_lookup_enum_by_nr(target),
196 gl_lookup_enum_by_nr(pname),
197 eparam);
198
199
200 switch (target) {
201 case GL_TEXTURE_1D:
202 texObj = texUnit->CurrentD[1];
203 break;
204 case GL_TEXTURE_2D:
205 texObj = texUnit->CurrentD[2];
206 break;
207 case GL_TEXTURE_3D_EXT:
208 texObj = texUnit->CurrentD[3];
209 break;
210 default:
211 gl_error( ctx, GL_INVALID_ENUM, "glTexParameter(target)" );
212 return;
213 }
214
215 switch (pname) {
216 case GL_TEXTURE_MIN_FILTER:
217 /* A small optimization */
218 if (texObj->MinFilter == eparam)
219 return;
220
221 if (eparam==GL_NEAREST || eparam==GL_LINEAR
222 || eparam==GL_NEAREST_MIPMAP_NEAREST
223 || eparam==GL_LINEAR_MIPMAP_NEAREST
224 || eparam==GL_NEAREST_MIPMAP_LINEAR
225 || eparam==GL_LINEAR_MIPMAP_LINEAR) {
226 texObj->MinFilter = eparam;
227 ctx->NewState |= NEW_TEXTURING;
228 }
229 else {
230 gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
231 return;
232 }
233 break;
234 case GL_TEXTURE_MAG_FILTER:
235 /* A small optimization */
236 if (texObj->MagFilter == eparam)
237 return;
238
239 if (eparam==GL_NEAREST || eparam==GL_LINEAR) {
240 texObj->MagFilter = eparam;
241 ctx->NewState |= NEW_TEXTURING;
242 }
243 else {
244 gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
245 return;
246 }
247 break;
248 case GL_TEXTURE_WRAP_S:
249 if (texObj->WrapS == eparam)
250 return;
251
252 if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
253 texObj->WrapS = eparam;
254 ctx->NewState |= NEW_TEXTURING;
255 }
256 else {
257 gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
258 return;
259 }
260 break;
261 case GL_TEXTURE_WRAP_T:
262 if (texObj->WrapT == eparam)
263 return;
264
265 if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
266 texObj->WrapT = eparam;
267 ctx->NewState |= NEW_TEXTURING;
268 }
269 else {
270 gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
271 return;
272 }
273 break;
274 case GL_TEXTURE_WRAP_R_EXT:
275 if (texObj->WrapR == eparam)
276 return;
277
278 if (eparam==GL_CLAMP || eparam==GL_REPEAT || eparam==GL_CLAMP_TO_EDGE) {
279 texObj->WrapR = eparam;
280 ctx->NewState |= NEW_TEXTURING;
281 }
282 else {
283 gl_error( ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
284 }
285 break;
286 case GL_TEXTURE_BORDER_COLOR:
287 texObj->BorderColor[0] = (GLubyte) CLAMP((GLint)(params[0]*255.0), 0, 255);
288 texObj->BorderColor[1] = (GLubyte) CLAMP((GLint)(params[1]*255.0), 0, 255);
289 texObj->BorderColor[2] = (GLubyte) CLAMP((GLint)(params[2]*255.0), 0, 255);
290 texObj->BorderColor[3] = (GLubyte) CLAMP((GLint)(params[3]*255.0), 0, 255);
291 break;
292 case GL_TEXTURE_MIN_LOD:
293 texObj->MinLod = params[0];
294 ctx->NewState |= NEW_TEXTURING;
295 break;
296 case GL_TEXTURE_MAX_LOD:
297 texObj->MaxLod = params[0];
298 ctx->NewState |= NEW_TEXTURING;
299 break;
300 case GL_TEXTURE_BASE_LEVEL:
301 if (params[0] < 0.0) {
302 gl_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
303 return;
304 }
305 texObj->BaseLevel = (GLint) params[0];
306 ctx->NewState |= NEW_TEXTURING;
307 break;
308 case GL_TEXTURE_MAX_LEVEL:
309 if (params[0] < 0.0) {
310 gl_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
311 return;
312 }
313 texObj->MaxLevel = (GLint) params[0];
314 ctx->NewState |= NEW_TEXTURING;
315 break;
316 case GL_TEXTURE_PRIORITY:
317 /* (keithh@netcomuk.co.uk) */
318 texObj->Priority = CLAMP( params[0], 0.0F, 1.0F );
319 break;
320 default:
321 gl_error( ctx, GL_INVALID_ENUM, "glTexParameter(pname)" );
322 return;
323 }
324
325 gl_put_texobj_on_dirty_list( ctx, texObj );
326
327 if (ctx->Driver.TexParameter) {
328 (*ctx->Driver.TexParameter)( ctx, target, texObj, pname, params );
329 }
330}
331
332
333
334void gl_GetTexLevelParameterfv( GLcontext *ctx, GLenum target, GLint level,
335 GLenum pname, GLfloat *params )
336{
337 GLint iparam;
338 gl_GetTexLevelParameteriv( ctx, target, level, pname, &iparam );
339 *params = (GLfloat) iparam;
340}
341
342
343
344void gl_GetTexLevelParameteriv( GLcontext *ctx, GLenum target, GLint level,
345 GLenum pname, GLint *params )
346{
347 const struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
348 const struct gl_texture_image *img = NULL;
349 GLuint dimensions;
350
351 if (level < 0 || level >= ctx->Const.MaxTextureLevels) {
352 gl_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
353 return;
354 }
355
356 switch (target) {
357 case GL_TEXTURE_1D:
358 img = texUnit->CurrentD[1]->Image[level];
359 dimensions = 1;
360 break;
361 case GL_TEXTURE_2D:
362 img = texUnit->CurrentD[2]->Image[level];
363 dimensions = 2;
364 break;
365 case GL_TEXTURE_3D:
366 img = texUnit->CurrentD[3]->Image[level];
367 dimensions = 3;
368 break;
369 case GL_PROXY_TEXTURE_1D:
370 img = ctx->Texture.Proxy1D->Image[level];
371 dimensions = 1;
372 break;
373 case GL_PROXY_TEXTURE_2D:
374 img = ctx->Texture.Proxy2D->Image[level];
375 dimensions = 2;
376 break;
377 case GL_PROXY_TEXTURE_3D:
378 img = ctx->Texture.Proxy3D->Image[level];
379 dimensions = 3;
380 break;
381 default:
382 gl_error(ctx, GL_INVALID_ENUM, "glGetTexLevelParameter[if]v(target)");
383 return;
384 }
385
386 if (!img) {
387 if (pname == GL_TEXTURE_COMPONENTS)
388 *params = 1;
389 else
390 *params = 0;
391 return;
392 }
393
394 switch (pname) {
395 case GL_TEXTURE_WIDTH:
396 *params = img->Width;
397 return;
398 case GL_TEXTURE_HEIGHT:
399 if (dimensions > 1) {
400 *params = img->Height;
401 }
402 else {
403 gl_error( ctx, GL_INVALID_ENUM,
404 "glGetTexLevelParameter[if]v(pname=GL_TEXTURE_HEIGHT)" );
405 }
406 return;
407 case GL_TEXTURE_DEPTH:
408 if (dimensions > 2) {
409 *params = img->Depth;
410 }
411 else {
412 gl_error( ctx, GL_INVALID_ENUM,
413 "glGetTexLevelParameter[if]v(pname=GL_TEXTURE_DEPTH)" );
414 }
415 return;
416 case GL_TEXTURE_COMPONENTS:
417 *params = img->IntFormat;
418 return;
419 case GL_TEXTURE_BORDER:
420 *params = img->Border;
421 return;
422 case GL_TEXTURE_RED_SIZE:
423 *params = img->RedBits;
424 return;
425 case GL_TEXTURE_GREEN_SIZE:
426 *params = img->GreenBits;
427 return;
428 case GL_TEXTURE_BLUE_SIZE:
429 *params = img->BlueBits;
430 return;
431 case GL_TEXTURE_ALPHA_SIZE:
432 *params = img->AlphaBits;
433 return;
434 case GL_TEXTURE_INTENSITY_SIZE:
435 *params = img->IntensityBits;
436 return;
437 case GL_TEXTURE_LUMINANCE_SIZE:
438 *params = img->LuminanceBits;
439 return;
440 case GL_TEXTURE_INDEX_SIZE_EXT:
441 *params = img->IndexBits;
442 return;
443 default:
444 gl_error( ctx, GL_INVALID_ENUM,
445 "glGetTexLevelParameter[if]v(pname)" );
446 }
447}
448
449
450
451
452void gl_GetTexParameterfv( GLcontext *ctx,
453 GLenum target, GLenum pname, GLfloat *params )
454{
455 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
456 struct gl_texture_object *obj;
457
458 switch (target) {
459 case GL_TEXTURE_1D:
460 obj = texUnit->CurrentD[1];
461 break;
462 case GL_TEXTURE_2D:
463 obj = texUnit->CurrentD[2];
464 break;
465 case GL_TEXTURE_3D_EXT:
466 obj = texUnit->CurrentD[3];
467 break;
468 default:
469 gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)");
470 return;
471 }
472
473 switch (pname) {
474 case GL_TEXTURE_MAG_FILTER:
475 *params = ENUM_TO_FLOAT(obj->MagFilter);
476 break;
477 case GL_TEXTURE_MIN_FILTER:
478 *params = ENUM_TO_FLOAT(obj->MinFilter);
479 break;
480 case GL_TEXTURE_WRAP_S:
481 *params = ENUM_TO_FLOAT(obj->WrapS);
482 break;
483 case GL_TEXTURE_WRAP_T:
484 *params = ENUM_TO_FLOAT(obj->WrapT);
485 break;
486 case GL_TEXTURE_WRAP_R_EXT:
487 *params = ENUM_TO_FLOAT(obj->WrapR);
488 break;
489 case GL_TEXTURE_BORDER_COLOR:
490 params[0] = obj->BorderColor[0] / 255.0F;
491 params[1] = obj->BorderColor[1] / 255.0F;
492 params[2] = obj->BorderColor[2] / 255.0F;
493 params[3] = obj->BorderColor[3] / 255.0F;
494 break;
495 case GL_TEXTURE_RESIDENT:
496 *params = ENUM_TO_FLOAT(GL_TRUE);
497 break;
498 case GL_TEXTURE_PRIORITY:
499 *params = obj->Priority;
500 break;
501 case GL_TEXTURE_MIN_LOD:
502 *params = obj->MinLod;
503 break;
504 case GL_TEXTURE_MAX_LOD:
505 *params = obj->MaxLod;
506 break;
507 case GL_TEXTURE_BASE_LEVEL:
508 *params = (GLfloat) obj->BaseLevel;
509 break;
510 case GL_TEXTURE_MAX_LEVEL:
511 *params = (GLfloat) obj->MaxLevel;
512 break;
513 default:
514 gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname)" );
515 }
516}
517
518
519void gl_GetTexParameteriv( GLcontext *ctx,
520 GLenum target, GLenum pname, GLint *params )
521{
522 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
523 struct gl_texture_object *obj;
524
525 switch (target) {
526 case GL_TEXTURE_1D:
527 obj = texUnit->CurrentD[1];
528 break;
529 case GL_TEXTURE_2D:
530 obj = texUnit->CurrentD[2];
531 break;
532 case GL_TEXTURE_3D_EXT:
533 obj = texUnit->CurrentD[3];
534 break;
535 default:
536 gl_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(target)");
537 return;
538 }
539
540 switch (pname) {
541 case GL_TEXTURE_MAG_FILTER:
542 *params = (GLint) obj->MagFilter;
543 break;
544 case GL_TEXTURE_MIN_FILTER:
545 *params = (GLint) obj->MinFilter;
546 break;
547 case GL_TEXTURE_WRAP_S:
548 *params = (GLint) obj->WrapS;
549 break;
550 case GL_TEXTURE_WRAP_T:
551 *params = (GLint) obj->WrapT;
552 break;
553 case GL_TEXTURE_WRAP_R_EXT:
554 *params = (GLint) obj->WrapR;
555 break;
556 case GL_TEXTURE_BORDER_COLOR:
557 {
558 GLfloat color[4];
559 color[0] = obj->BorderColor[0] / 255.0F;
560 color[1] = obj->BorderColor[1] / 255.0F;
561 color[2] = obj->BorderColor[2] / 255.0F;
562 color[3] = obj->BorderColor[3] / 255.0F;
563 params[0] = FLOAT_TO_INT( color[0] );
564 params[1] = FLOAT_TO_INT( color[1] );
565 params[2] = FLOAT_TO_INT( color[2] );
566 params[3] = FLOAT_TO_INT( color[3] );
567 }
568 break;
569 case GL_TEXTURE_RESIDENT:
570 *params = (GLint) GL_TRUE;
571 break;
572 case GL_TEXTURE_PRIORITY:
573 *params = (GLint) obj->Priority;
574 break;
575 case GL_TEXTURE_MIN_LOD:
576 *params = (GLint) obj->MinLod;
577 break;
578 case GL_TEXTURE_MAX_LOD:
579 *params = (GLint) obj->MaxLod;
580 break;
581 case GL_TEXTURE_BASE_LEVEL:
582 *params = obj->BaseLevel;
583 break;
584 case GL_TEXTURE_MAX_LEVEL:
585 *params = obj->MaxLevel;
586 break;
587 default:
588 gl_error( ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname)" );
589 }
590}
591
592
593
594
595/**********************************************************************/
596/* Texture Coord Generation */
597/**********************************************************************/
598
599
600void gl_TexGenfv( GLcontext *ctx,
601 GLenum coord, GLenum pname, const GLfloat *params )
602{
603 GLuint tUnit = ctx->Texture.CurrentTransformUnit;
604 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
605 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glTexGenfv");
606
607 if (MESA_VERBOSE&(VERBOSE_API|VERBOSE_TEXTURE))
608 fprintf(stderr, "texGEN %s %s %x...\n",
609 gl_lookup_enum_by_nr(coord),
610 gl_lookup_enum_by_nr(pname),
611 *(int *)params);
612
613 switch( coord ) {
614 case GL_S:
615 if (pname==GL_TEXTURE_GEN_MODE) {
616 GLenum mode = (GLenum) (GLint) *params;
617 switch (mode) {
618 case GL_OBJECT_LINEAR:
619 texUnit->GenModeS = mode;
620 texUnit->GenBitS = TEXGEN_OBJ_LINEAR;
621 break;
622 case GL_EYE_LINEAR:
623 texUnit->GenModeS = mode;
624 texUnit->GenBitS = TEXGEN_EYE_LINEAR;
625 break;
626 case GL_REFLECTION_MAP_NV:
627 texUnit->GenModeS = mode;
628 texUnit->GenBitS = TEXGEN_REFLECTION_MAP_NV;
629 break;
630 case GL_NORMAL_MAP_NV:
631 texUnit->GenModeS = mode;
632 texUnit->GenBitS = TEXGEN_NORMAL_MAP_NV;
633 break;
634 case GL_SPHERE_MAP:
635 texUnit->GenModeS = mode;
636 texUnit->GenBitS = TEXGEN_SPHERE_MAP;
637 break;
638 default:
639 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
640 return;
641 }
642 }
643 else if (pname==GL_OBJECT_PLANE) {
644 texUnit->ObjectPlaneS[0] = params[0];
645 texUnit->ObjectPlaneS[1] = params[1];
646 texUnit->ObjectPlaneS[2] = params[2];
647 texUnit->ObjectPlaneS[3] = params[3];
648 }
649 else if (pname==GL_EYE_PLANE) {
650 /* Transform plane equation by the inverse modelview matrix */
651 if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
652 gl_matrix_analyze( &ctx->ModelView );
653 }
654 gl_transform_vector( texUnit->EyePlaneS, params,
655 ctx->ModelView.inv );
656 }
657 else {
658 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
659 return;
660 }
661 break;
662 case GL_T:
663 if (pname==GL_TEXTURE_GEN_MODE) {
664 GLenum mode = (GLenum) (GLint) *params;
665 switch(mode) {
666 case GL_OBJECT_LINEAR:
667 texUnit->GenModeT = GL_OBJECT_LINEAR;
668 texUnit->GenBitT = TEXGEN_OBJ_LINEAR;
669 break;
670 case GL_EYE_LINEAR:
671 texUnit->GenModeT = GL_EYE_LINEAR;
672 texUnit->GenBitT = TEXGEN_EYE_LINEAR;
673 break;
674 case GL_REFLECTION_MAP_NV:
675 texUnit->GenModeT = GL_REFLECTION_MAP_NV;
676 texUnit->GenBitT = TEXGEN_REFLECTION_MAP_NV;
677 break;
678 case GL_NORMAL_MAP_NV:
679 texUnit->GenModeT = GL_NORMAL_MAP_NV;
680 texUnit->GenBitT = TEXGEN_NORMAL_MAP_NV;
681 break;
682 case GL_SPHERE_MAP:
683 texUnit->GenModeT = GL_SPHERE_MAP;
684 texUnit->GenBitT = TEXGEN_SPHERE_MAP;
685 break;
686 default:
687 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
688 return;
689 }
690 }
691 else if (pname==GL_OBJECT_PLANE) {
692 texUnit->ObjectPlaneT[0] = params[0];
693 texUnit->ObjectPlaneT[1] = params[1];
694 texUnit->ObjectPlaneT[2] = params[2];
695 texUnit->ObjectPlaneT[3] = params[3];
696 }
697 else if (pname==GL_EYE_PLANE) {
698 /* Transform plane equation by the inverse modelview matrix */
699 if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
700 gl_matrix_analyze( &ctx->ModelView );
701 }
702 gl_transform_vector( texUnit->EyePlaneT, params,
703 ctx->ModelView.inv );
704 }
705 else {
706 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
707 return;
708 }
709 break;
710 case GL_R:
711 if (pname==GL_TEXTURE_GEN_MODE) {
712 GLenum mode = (GLenum) (GLint) *params;
713 switch (mode) {
714 case GL_OBJECT_LINEAR:
715 texUnit->GenModeR = GL_OBJECT_LINEAR;
716 texUnit->GenBitR = TEXGEN_OBJ_LINEAR;
717 break;
718 case GL_REFLECTION_MAP_NV:
719 texUnit->GenModeR = GL_REFLECTION_MAP_NV;
720 texUnit->GenBitR = TEXGEN_REFLECTION_MAP_NV;
721 break;
722 case GL_NORMAL_MAP_NV:
723 texUnit->GenModeR = GL_NORMAL_MAP_NV;
724 texUnit->GenBitR = TEXGEN_NORMAL_MAP_NV;
725 break;
726 case GL_EYE_LINEAR:
727 texUnit->GenModeR = GL_EYE_LINEAR;
728 texUnit->GenBitR = TEXGEN_EYE_LINEAR;
729 break;
730 default:
731 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
732 return;
733 }
734 }
735 else if (pname==GL_OBJECT_PLANE) {
736 texUnit->ObjectPlaneR[0] = params[0];
737 texUnit->ObjectPlaneR[1] = params[1];
738 texUnit->ObjectPlaneR[2] = params[2];
739 texUnit->ObjectPlaneR[3] = params[3];
740 }
741 else if (pname==GL_EYE_PLANE) {
742 /* Transform plane equation by the inverse modelview matrix */
743 if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
744 gl_matrix_analyze( &ctx->ModelView );
745 }
746 gl_transform_vector( texUnit->EyePlaneR, params,
747 ctx->ModelView.inv );
748 }
749 else {
750 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
751 return;
752 }
753 break;
754 case GL_Q:
755 if (pname==GL_TEXTURE_GEN_MODE) {
756 GLenum mode = (GLenum) (GLint) *params;
757 switch (mode) {
758 case GL_OBJECT_LINEAR:
759 texUnit->GenModeQ = GL_OBJECT_LINEAR;
760 texUnit->GenBitQ = TEXGEN_OBJ_LINEAR;
761 break;
762 case GL_EYE_LINEAR:
763 texUnit->GenModeQ = GL_EYE_LINEAR;
764 texUnit->GenBitQ = TEXGEN_EYE_LINEAR;
765 break;
766 default:
767 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(param)" );
768 return;
769 }
770 }
771 else if (pname==GL_OBJECT_PLANE) {
772 texUnit->ObjectPlaneQ[0] = params[0];
773 texUnit->ObjectPlaneQ[1] = params[1];
774 texUnit->ObjectPlaneQ[2] = params[2];
775 texUnit->ObjectPlaneQ[3] = params[3];
776 }
777 else if (pname==GL_EYE_PLANE) {
778 /* Transform plane equation by the inverse modelview matrix */
779 if (ctx->ModelView.flags & MAT_DIRTY_INVERSE) {
780 gl_matrix_analyze( &ctx->ModelView );
781 }
782 gl_transform_vector( texUnit->EyePlaneQ, params,
783 ctx->ModelView.inv );
784 }
785 else {
786 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(pname)" );
787 return;
788 }
789 break;
790 default:
791 gl_error( ctx, GL_INVALID_ENUM, "glTexGenfv(coord)" );
792 return;
793 }
794
795 ctx->NewState |= NEW_TEXTURING;
796}
797
798
799
800void gl_GetTexGendv( GLcontext *ctx,
801 GLenum coord, GLenum pname, GLdouble *params )
802{
803 GLuint tUnit = ctx->Texture.CurrentTransformUnit;
804 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
805
806 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGendv");
807
808 switch( coord ) {
809 case GL_S:
810 if (pname==GL_TEXTURE_GEN_MODE) {
811 params[0] = ENUM_TO_DOUBLE(texUnit->GenModeS);
812 }
813 else if (pname==GL_OBJECT_PLANE) {
814 COPY_4V( params, texUnit->ObjectPlaneS );
815 }
816 else if (pname==GL_EYE_PLANE) {
817 COPY_4V( params, texUnit->EyePlaneS );
818 }
819 else {
820 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
821 return;
822 }
823 break;
824 case GL_T:
825 if (pname==GL_TEXTURE_GEN_MODE) {
826 params[0] = ENUM_TO_DOUBLE(texUnit->GenModeT);
827 }
828 else if (pname==GL_OBJECT_PLANE) {
829 COPY_4V( params, texUnit->ObjectPlaneT );
830 }
831 else if (pname==GL_EYE_PLANE) {
832 COPY_4V( params, texUnit->EyePlaneT );
833 }
834 else {
835 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
836 return;
837 }
838 break;
839 case GL_R:
840 if (pname==GL_TEXTURE_GEN_MODE) {
841 params[0] = ENUM_TO_DOUBLE(texUnit->GenModeR);
842 }
843 else if (pname==GL_OBJECT_PLANE) {
844 COPY_4V( params, texUnit->ObjectPlaneR );
845 }
846 else if (pname==GL_EYE_PLANE) {
847 COPY_4V( params, texUnit->EyePlaneR );
848 }
849 else {
850 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
851 return;
852 }
853 break;
854 case GL_Q:
855 if (pname==GL_TEXTURE_GEN_MODE) {
856 params[0] = ENUM_TO_DOUBLE(texUnit->GenModeQ);
857 }
858 else if (pname==GL_OBJECT_PLANE) {
859 COPY_4V( params, texUnit->ObjectPlaneQ );
860 }
861 else if (pname==GL_EYE_PLANE) {
862 COPY_4V( params, texUnit->EyePlaneQ );
863 }
864 else {
865 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(pname)" );
866 return;
867 }
868 break;
869 default:
870 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGendv(coord)" );
871 return;
872 }
873}
874
875
876
877void gl_GetTexGenfv( GLcontext *ctx,
878 GLenum coord, GLenum pname, GLfloat *params )
879{
880 GLuint tUnit = ctx->Texture.CurrentTransformUnit;
881 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
882
883 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGenfv");
884
885 switch( coord ) {
886 case GL_S:
887 if (pname==GL_TEXTURE_GEN_MODE) {
888 params[0] = ENUM_TO_FLOAT(texUnit->GenModeS);
889 }
890 else if (pname==GL_OBJECT_PLANE) {
891 COPY_4V( params, texUnit->ObjectPlaneS );
892 }
893 else if (pname==GL_EYE_PLANE) {
894 COPY_4V( params, texUnit->EyePlaneS );
895 }
896 else {
897 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
898 return;
899 }
900 break;
901 case GL_T:
902 if (pname==GL_TEXTURE_GEN_MODE) {
903 params[0] = ENUM_TO_FLOAT(texUnit->GenModeT);
904 }
905 else if (pname==GL_OBJECT_PLANE) {
906 COPY_4V( params, texUnit->ObjectPlaneT );
907 }
908 else if (pname==GL_EYE_PLANE) {
909 COPY_4V( params, texUnit->EyePlaneT );
910 }
911 else {
912 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
913 return;
914 }
915 break;
916 case GL_R:
917 if (pname==GL_TEXTURE_GEN_MODE) {
918 params[0] = ENUM_TO_FLOAT(texUnit->GenModeR);
919 }
920 else if (pname==GL_OBJECT_PLANE) {
921 COPY_4V( params, texUnit->ObjectPlaneR );
922 }
923 else if (pname==GL_EYE_PLANE) {
924 COPY_4V( params, texUnit->EyePlaneR );
925 }
926 else {
927 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
928 return;
929 }
930 break;
931 case GL_Q:
932 if (pname==GL_TEXTURE_GEN_MODE) {
933 params[0] = ENUM_TO_FLOAT(texUnit->GenModeQ);
934 }
935 else if (pname==GL_OBJECT_PLANE) {
936 COPY_4V( params, texUnit->ObjectPlaneQ );
937 }
938 else if (pname==GL_EYE_PLANE) {
939 COPY_4V( params, texUnit->EyePlaneQ );
940 }
941 else {
942 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(pname)" );
943 return;
944 }
945 break;
946 default:
947 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGenfv(coord)" );
948 return;
949 }
950}
951
952
953
954void gl_GetTexGeniv( GLcontext *ctx,
955 GLenum coord, GLenum pname, GLint *params )
956{
957 GLuint tUnit = ctx->Texture.CurrentTransformUnit;
958 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[tUnit];
959
960 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx, "glGetTexGeniv");
961
962 switch( coord ) {
963 case GL_S:
964 if (pname==GL_TEXTURE_GEN_MODE) {
965 params[0] = texUnit->GenModeS;
966 }
967 else if (pname==GL_OBJECT_PLANE) {
968 params[0] = (GLint) texUnit->ObjectPlaneS[0];
969 params[1] = (GLint) texUnit->ObjectPlaneS[1];
970 params[2] = (GLint) texUnit->ObjectPlaneS[2];
971 params[3] = (GLint) texUnit->ObjectPlaneS[3];
972 }
973 else if (pname==GL_EYE_PLANE) {
974 params[0] = (GLint) texUnit->EyePlaneS[0];
975 params[1] = (GLint) texUnit->EyePlaneS[1];
976 params[2] = (GLint) texUnit->EyePlaneS[2];
977 params[3] = (GLint) texUnit->EyePlaneS[3];
978 }
979 else {
980 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
981 return;
982 }
983 break;
984 case GL_T:
985 if (pname==GL_TEXTURE_GEN_MODE) {
986 params[0] = (GLint) texUnit->GenModeT;
987 }
988 else if (pname==GL_OBJECT_PLANE) {
989 params[0] = (GLint) texUnit->ObjectPlaneT[0];
990 params[1] = (GLint) texUnit->ObjectPlaneT[1];
991 params[2] = (GLint) texUnit->ObjectPlaneT[2];
992 params[3] = (GLint) texUnit->ObjectPlaneT[3];
993 }
994 else if (pname==GL_EYE_PLANE) {
995 params[0] = (GLint) texUnit->EyePlaneT[0];
996 params[1] = (GLint) texUnit->EyePlaneT[1];
997 params[2] = (GLint) texUnit->EyePlaneT[2];
998 params[3] = (GLint) texUnit->EyePlaneT[3];
999 }
1000 else {
1001 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
1002 return;
1003 }
1004 break;
1005 case GL_R:
1006 if (pname==GL_TEXTURE_GEN_MODE) {
1007 params[0] = (GLint) texUnit->GenModeR;
1008 }
1009 else if (pname==GL_OBJECT_PLANE) {
1010 params[0] = (GLint) texUnit->ObjectPlaneR[0];
1011 params[1] = (GLint) texUnit->ObjectPlaneR[1];
1012 params[2] = (GLint) texUnit->ObjectPlaneR[2];
1013 params[3] = (GLint) texUnit->ObjectPlaneR[3];
1014 }
1015 else if (pname==GL_EYE_PLANE) {
1016 params[0] = (GLint) texUnit->EyePlaneR[0];
1017 params[1] = (GLint) texUnit->EyePlaneR[1];
1018 params[2] = (GLint) texUnit->EyePlaneR[2];
1019 params[3] = (GLint) texUnit->EyePlaneR[3];
1020 }
1021 else {
1022 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
1023 return;
1024 }
1025 break;
1026 case GL_Q:
1027 if (pname==GL_TEXTURE_GEN_MODE) {
1028 params[0] = (GLint) texUnit->GenModeQ;
1029 }
1030 else if (pname==GL_OBJECT_PLANE) {
1031 params[0] = (GLint) texUnit->ObjectPlaneQ[0];
1032 params[1] = (GLint) texUnit->ObjectPlaneQ[1];
1033 params[2] = (GLint) texUnit->ObjectPlaneQ[2];
1034 params[3] = (GLint) texUnit->ObjectPlaneQ[3];
1035 }
1036 else if (pname==GL_EYE_PLANE) {
1037 params[0] = (GLint) texUnit->EyePlaneQ[0];
1038 params[1] = (GLint) texUnit->EyePlaneQ[1];
1039 params[2] = (GLint) texUnit->EyePlaneQ[2];
1040 params[3] = (GLint) texUnit->EyePlaneQ[3];
1041 }
1042 else {
1043 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(pname)" );
1044 return;
1045 }
1046 break;
1047 default:
1048 gl_error( ctx, GL_INVALID_ENUM, "glGetTexGeniv(coord)" );
1049 return;
1050 }
1051}
1052
1053
1054/* GL_ARB_multitexture */
1055void gl_ActiveTexture( GLcontext *ctx, GLenum target )
1056{
1057 GLint maxUnits = ctx->Const.MaxTextureUnits;
1058
1059 ASSERT_OUTSIDE_BEGIN_END( ctx, "glActiveTextureARB" );
1060
1061 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
1062 fprintf(stderr, "glActiveTexture %s\n",
1063 gl_lookup_enum_by_nr(target));
1064
1065 if (target >= GL_TEXTURE0_ARB && target < GL_TEXTURE0_ARB + maxUnits) {
1066 GLint texUnit = target - GL_TEXTURE0_ARB;
1067 ctx->Texture.CurrentUnit = texUnit;
1068 ctx->Texture.CurrentTransformUnit = texUnit;
1069 if (ctx->Driver.ActiveTexture) {
1070 (*ctx->Driver.ActiveTexture)( ctx, (GLuint) texUnit );
1071 }
1072 }
1073 else {
1074 gl_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)");
1075 }
1076}
1077
1078
1079/* GL_ARB_multitexture */
1080void gl_ClientActiveTexture( GLcontext *ctx, GLenum target )
1081{
1082 GLint maxUnits = ctx->Const.MaxTextureUnits;
1083
1084 ASSERT_OUTSIDE_BEGIN_END( ctx, "glClientActiveTextureARB" );
1085
1086 if (target >= GL_TEXTURE0_ARB && target < GL_TEXTURE0_ARB + maxUnits) {
1087 GLint texUnit = target - GL_TEXTURE0_ARB;
1088 ctx->Array.ActiveTexture = texUnit;
1089 }
1090 else {
1091 gl_error(ctx, GL_INVALID_OPERATION, "glActiveTextureARB(target)");
1092 }
1093}
1094
1095
1096
1097/*
1098 * Put the given texture object into the list of dirty texture objects.
1099 * When a texture object is dirty we have to reexamine it for completeness
1100 * and perhaps choose a different texture sampling function.
1101 */
1102void gl_put_texobj_on_dirty_list( GLcontext *ctx, struct gl_texture_object *t )
1103{
1104 ASSERT(ctx);
1105 ASSERT(t);
1106 /* Only insert if not already in the dirty list.
1107 * The Dirty flag is only set iff the texture object is in the dirty list.
1108 */
1109 if (!t->Dirty) {
1110 ASSERT(t->NextDirty == NULL);
1111 t->Dirty = GL_TRUE;
1112 t->NextDirty = ctx->Shared->DirtyTexObjList;
1113 ctx->Shared->DirtyTexObjList = t;
1114 }
1115#ifdef DEBUG
1116 else {
1117 /* make sure t is in the list */
1118 struct gl_texture_object *obj = ctx->Shared->DirtyTexObjList;
1119 while (obj) {
1120 if (obj == t) {
1121 return;
1122 }
1123 obj = obj->NextDirty;
1124 }
1125 gl_problem(ctx, "Error in gl_put_texobj_on_dirty_list");
1126 }
1127#endif
1128}
1129
1130
1131/*
1132 * Remove a texture object from the dirty texture list.
1133 */
1134void gl_remove_texobj_from_dirty_list( struct gl_shared_state *shared,
1135 struct gl_texture_object *tObj )
1136{
1137 struct gl_texture_object *t, *prev = NULL;
1138 ASSERT(shared);
1139 ASSERT(tObj);
1140 for (t = shared->DirtyTexObjList; t; t = t->NextDirty) {
1141 if (t == tObj) {
1142 if (prev) {
1143 prev->NextDirty = t->NextDirty;
1144 }
1145 else {
1146 shared->DirtyTexObjList = t->NextDirty;
1147 }
1148 return;
1149 }
1150 prev = t;
1151 }
1152}
1153
1154
1155/*
1156 * This is called by gl_update_state() if the NEW_TEXTURING bit in
1157 * ctx->NewState is unit.
1158 */
1159void gl_update_dirty_texobjs( GLcontext *ctx )
1160{
1161 struct gl_texture_object *t, *next;
1162 for (t = ctx->Shared->DirtyTexObjList; t; t = next) {
1163 next = t->NextDirty;
1164 gl_test_texture_object_completeness(ctx, t);
1165 gl_set_texture_sampler(t);
1166 t->NextDirty = NULL;
1167 t->Dirty = GL_FALSE;
1168 }
1169 ctx->Shared->DirtyTexObjList = NULL;
1170}
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