projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
Merge branch 'llvm-cliptest-viewport'
[mesa.git] / src / mesa / main / texparam.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.5
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26 /**
27 * \file texparam.c
28 *
29 * glTexParameter-related functions
30 */
31
32
33 #include "main/glheader.h"
34 #include "main/colormac.h"
35 #include "main/context.h"
36 #include "main/formats.h"
37 #include "main/macros.h"
38 #include "main/texcompress.h"
39 #include "main/texparam.h"
40 #include "main/teximage.h"
41 #include "main/texstate.h"
42 #include "program/prog_instruction.h"
43
44
45 /**
46 * Check if a coordinate wrap mode is supported for the texture target.
47 * \return GL_TRUE if legal, GL_FALSE otherwise
48 */
49 static GLboolean
50 validate_texture_wrap_mode(struct gl_context * ctx, GLenum target, GLenum wrap)
51 {
52 const struct gl_extensions * const e = & ctx->Extensions;
53
54 if (wrap == GL_CLAMP || wrap == GL_CLAMP_TO_EDGE ||
55 (wrap == GL_CLAMP_TO_BORDER && e->ARB_texture_border_clamp)) {
56 /* any texture target */
57 return GL_TRUE;
58 }
59 else if (target != GL_TEXTURE_RECTANGLE_NV &&
60 (wrap == GL_REPEAT ||
61 (wrap == GL_MIRRORED_REPEAT &&
62 e->ARB_texture_mirrored_repeat) ||
63 (wrap == GL_MIRROR_CLAMP_EXT &&
64 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
65 (wrap == GL_MIRROR_CLAMP_TO_EDGE_EXT &&
66 (e->ATI_texture_mirror_once || e->EXT_texture_mirror_clamp)) ||
67 (wrap == GL_MIRROR_CLAMP_TO_BORDER_EXT &&
68 (e->EXT_texture_mirror_clamp)))) {
69 /* non-rectangle texture */
70 return GL_TRUE;
71 }
72
73 _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)", wrap );
74 return GL_FALSE;
75 }
76
77
78 /**
79 * Get current texture object for given target.
80 * Return NULL if any error (and record the error).
81 * Note that this is different from _mesa_select_tex_object() in that proxy
82 * targets are not accepted.
83 * Only the glGetTexLevelParameter() functions accept proxy targets.
84 */
85 static struct gl_texture_object *
86 get_texobj(struct gl_context *ctx, GLenum target, GLboolean get)
87 {
88 struct gl_texture_unit *texUnit;
89
90 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
91 _mesa_error(ctx, GL_INVALID_OPERATION,
92 "gl%sTexParameter(current unit)", get ? "Get" : "");
93 return NULL;
94 }
95
96 texUnit = _mesa_get_current_tex_unit(ctx);
97
98 switch (target) {
99 case GL_TEXTURE_1D:
100 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
101 case GL_TEXTURE_2D:
102 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
103 case GL_TEXTURE_3D:
104 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
105 case GL_TEXTURE_CUBE_MAP:
106 if (ctx->Extensions.ARB_texture_cube_map) {
107 return texUnit->CurrentTex[TEXTURE_CUBE_INDEX];
108 }
109 break;
110 case GL_TEXTURE_RECTANGLE_NV:
111 if (ctx->Extensions.NV_texture_rectangle) {
112 return texUnit->CurrentTex[TEXTURE_RECT_INDEX];
113 }
114 break;
115 case GL_TEXTURE_1D_ARRAY_EXT:
116 if (ctx->Extensions.MESA_texture_array) {
117 return texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX];
118 }
119 break;
120 case GL_TEXTURE_2D_ARRAY_EXT:
121 if (ctx->Extensions.MESA_texture_array) {
122 return texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX];
123 }
124 break;
125 default:
126 ;
127 }
128
129 _mesa_error(ctx, GL_INVALID_ENUM,
130 "gl%sTexParameter(target)", get ? "Get" : "");
131 return NULL;
132 }
133
134
135 /**
136 * Convert GL_RED/GREEN/BLUE/ALPHA/ZERO/ONE to SWIZZLE_X/Y/Z/W/ZERO/ONE.
137 * \return -1 if error.
138 */
139 static GLint
140 comp_to_swizzle(GLenum comp)
141 {
142 switch (comp) {
143 case GL_RED:
144 return SWIZZLE_X;
145 case GL_GREEN:
146 return SWIZZLE_Y;
147 case GL_BLUE:
148 return SWIZZLE_Z;
149 case GL_ALPHA:
150 return SWIZZLE_W;
151 case GL_ZERO:
152 return SWIZZLE_ZERO;
153 case GL_ONE:
154 return SWIZZLE_ONE;
155 default:
156 return -1;
157 }
158 }
159
160
161 static void
162 set_swizzle_component(GLuint *swizzle, GLuint comp, GLuint swz)
163 {
164 ASSERT(comp < 4);
165 ASSERT(swz <= SWIZZLE_NIL);
166 {
167 GLuint mask = 0x7 << (3 * comp);
168 GLuint s = (*swizzle & ~mask) | (swz << (3 * comp));
169 *swizzle = s;
170 }
171 }
172
173
174 /**
175 * This is called just prior to changing any texture object state.
176 * Any pending rendering will be flushed out, we'll set the _NEW_TEXTURE
177 * state flag and then mark the texture object as 'incomplete' so that any
178 * per-texture derived state gets recomputed.
179 */
180 static INLINE void
181 flush(struct gl_context *ctx, struct gl_texture_object *texObj)
182 {
183 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
184 texObj->_Complete = GL_FALSE;
185 }
186
187
188 /**
189 * Set an integer-valued texture parameter
190 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
191 */
192 static GLboolean
193 set_tex_parameteri(struct gl_context *ctx,
194 struct gl_texture_object *texObj,
195 GLenum pname, const GLint *params)
196 {
197 switch (pname) {
198 case GL_TEXTURE_MIN_FILTER:
199 if (texObj->MinFilter == params[0])
200 return GL_FALSE;
201 switch (params[0]) {
202 case GL_NEAREST:
203 case GL_LINEAR:
204 flush(ctx, texObj);
205 texObj->MinFilter = params[0];
206 return GL_TRUE;
207 case GL_NEAREST_MIPMAP_NEAREST:
208 case GL_LINEAR_MIPMAP_NEAREST:
209 case GL_NEAREST_MIPMAP_LINEAR:
210 case GL_LINEAR_MIPMAP_LINEAR:
211 if (texObj->Target != GL_TEXTURE_RECTANGLE_NV) {
212 flush(ctx, texObj);
213 texObj->MinFilter = params[0];
214 return GL_TRUE;
215 }
216 /* fall-through */
217 default:
218 _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
219 params[0] );
220 }
221 return GL_FALSE;
222
223 case GL_TEXTURE_MAG_FILTER:
224 if (texObj->MagFilter == params[0])
225 return GL_FALSE;
226 switch (params[0]) {
227 case GL_NEAREST:
228 case GL_LINEAR:
229 flush(ctx, texObj);
230 texObj->MagFilter = params[0];
231 return GL_TRUE;
232 default:
233 _mesa_error( ctx, GL_INVALID_ENUM, "glTexParameter(param=0x%x)",
234 params[0]);
235 }
236 return GL_FALSE;
237
238 case GL_TEXTURE_WRAP_S:
239 if (texObj->WrapS == params[0])
240 return GL_FALSE;
241 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
242 flush(ctx, texObj);
243 texObj->WrapS = params[0];
244 return GL_TRUE;
245 }
246 return GL_FALSE;
247
248 case GL_TEXTURE_WRAP_T:
249 if (texObj->WrapT == params[0])
250 return GL_FALSE;
251 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
252 flush(ctx, texObj);
253 texObj->WrapT = params[0];
254 return GL_TRUE;
255 }
256 return GL_FALSE;
257
258 case GL_TEXTURE_WRAP_R:
259 if (texObj->WrapR == params[0])
260 return GL_FALSE;
261 if (validate_texture_wrap_mode(ctx, texObj->Target, params[0])) {
262 flush(ctx, texObj);
263 texObj->WrapR = params[0];
264 return GL_TRUE;
265 }
266 return GL_FALSE;
267
268 case GL_TEXTURE_BASE_LEVEL:
269 if (texObj->BaseLevel == params[0])
270 return GL_FALSE;
271 if (params[0] < 0 ||
272 (texObj->Target == GL_TEXTURE_RECTANGLE_ARB && params[0] != 0)) {
273 _mesa_error(ctx, GL_INVALID_VALUE,
274 "glTexParameter(param=%d)", params[0]);
275 return GL_FALSE;
276 }
277 flush(ctx, texObj);
278 texObj->BaseLevel = params[0];
279 return GL_TRUE;
280
281 case GL_TEXTURE_MAX_LEVEL:
282 if (texObj->MaxLevel == params[0])
283 return GL_FALSE;
284 if (params[0] < 0 || texObj->Target == GL_TEXTURE_RECTANGLE_ARB) {
285 _mesa_error(ctx, GL_INVALID_OPERATION,
286 "glTexParameter(param=%d)", params[0]);
287 return GL_FALSE;
288 }
289 flush(ctx, texObj);
290 texObj->MaxLevel = params[0];
291 return GL_TRUE;
292
293 case GL_GENERATE_MIPMAP_SGIS:
294 if (texObj->GenerateMipmap != params[0]) {
295 flush(ctx, texObj);
296 texObj->GenerateMipmap = params[0] ? GL_TRUE : GL_FALSE;
297 return GL_TRUE;
298 }
299 return GL_FALSE;
300
301 case GL_TEXTURE_COMPARE_MODE_ARB:
302 if (ctx->Extensions.ARB_shadow &&
303 (params[0] == GL_NONE ||
304 params[0] == GL_COMPARE_R_TO_TEXTURE_ARB)) {
305 if (texObj->CompareMode != params[0]) {
306 flush(ctx, texObj);
307 texObj->CompareMode = params[0];
308 return GL_TRUE;
309 }
310 return GL_FALSE;
311 }
312 else {
313 _mesa_error(ctx, GL_INVALID_ENUM,
314 "glTexParameter(GL_TEXTURE_COMPARE_MODE_ARB)");
315 }
316 return GL_FALSE;
317
318 case GL_TEXTURE_COMPARE_FUNC_ARB:
319 if (ctx->Extensions.ARB_shadow) {
320 if (texObj->CompareFunc == params[0])
321 return GL_FALSE;
322 switch (params[0]) {
323 case GL_LEQUAL:
324 case GL_GEQUAL:
325 flush(ctx, texObj);
326 texObj->CompareFunc = params[0];
327 return GL_TRUE;
328 case GL_EQUAL:
329 case GL_NOTEQUAL:
330 case GL_LESS:
331 case GL_GREATER:
332 case GL_ALWAYS:
333 case GL_NEVER:
334 if (ctx->Extensions.EXT_shadow_funcs) {
335 flush(ctx, texObj);
336 texObj->CompareFunc = params[0];
337 return GL_TRUE;
338 }
339 /* fall-through */
340 default:
341 _mesa_error(ctx, GL_INVALID_ENUM,
342 "glTexParameter(GL_TEXTURE_COMPARE_FUNC_ARB)");
343 }
344 }
345 else {
346 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
347 }
348 return GL_FALSE;
349
350 case GL_DEPTH_TEXTURE_MODE_ARB:
351 if (ctx->Extensions.ARB_depth_texture &&
352 (params[0] == GL_LUMINANCE ||
353 params[0] == GL_INTENSITY ||
354 params[0] == GL_ALPHA ||
355 (ctx->Extensions.ARB_texture_rg && params[0] == GL_RED))) {
356 if (texObj->DepthMode != params[0]) {
357 flush(ctx, texObj);
358 texObj->DepthMode = params[0];
359 return GL_TRUE;
360 }
361 }
362 else {
363 _mesa_error(ctx, GL_INVALID_ENUM,
364 "glTexParameter(GL_DEPTH_TEXTURE_MODE_ARB)");
365 }
366 return GL_FALSE;
367
368 #if FEATURE_OES_draw_texture
369 case GL_TEXTURE_CROP_RECT_OES:
370 texObj->CropRect[0] = params[0];
371 texObj->CropRect[1] = params[1];
372 texObj->CropRect[2] = params[2];
373 texObj->CropRect[3] = params[3];
374 return GL_TRUE;
375 #endif
376
377 case GL_TEXTURE_SWIZZLE_R_EXT:
378 case GL_TEXTURE_SWIZZLE_G_EXT:
379 case GL_TEXTURE_SWIZZLE_B_EXT:
380 case GL_TEXTURE_SWIZZLE_A_EXT:
381 if (ctx->Extensions.EXT_texture_swizzle) {
382 const GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
383 const GLint swz = comp_to_swizzle(params[0]);
384 if (swz < 0) {
385 _mesa_error(ctx, GL_INVALID_OPERATION,
386 "glTexParameter(swizzle 0x%x)", params[0]);
387 return GL_FALSE;
388 }
389 ASSERT(comp < 4);
390 if (swz >= 0) {
391 flush(ctx, texObj);
392 texObj->Swizzle[comp] = params[0];
393 set_swizzle_component(&texObj->_Swizzle, comp, swz);
394 return GL_TRUE;
395 }
396 }
397 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
398 return GL_FALSE;
399
400 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
401 if (ctx->Extensions.EXT_texture_swizzle) {
402 GLuint comp;
403 flush(ctx, texObj);
404 for (comp = 0; comp < 4; comp++) {
405 const GLint swz = comp_to_swizzle(params[comp]);
406 if (swz >= 0) {
407 texObj->Swizzle[comp] = params[comp];
408 set_swizzle_component(&texObj->_Swizzle, comp, swz);
409 }
410 else {
411 _mesa_error(ctx, GL_INVALID_OPERATION,
412 "glTexParameter(swizzle 0x%x)", params[comp]);
413 return GL_FALSE;
414 }
415 }
416 return GL_TRUE;
417 }
418 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
419 return GL_FALSE;
420
421 default:
422 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
423 }
424 return GL_FALSE;
425 }
426
427
428 /**
429 * Set a float-valued texture parameter
430 * \return GL_TRUE if legal AND the value changed, GL_FALSE otherwise
431 */
432 static GLboolean
433 set_tex_parameterf(struct gl_context *ctx,
434 struct gl_texture_object *texObj,
435 GLenum pname, const GLfloat *params)
436 {
437 switch (pname) {
438 case GL_TEXTURE_MIN_LOD:
439 if (texObj->MinLod == params[0])
440 return GL_FALSE;
441 flush(ctx, texObj);
442 texObj->MinLod = params[0];
443 return GL_TRUE;
444
445 case GL_TEXTURE_MAX_LOD:
446 if (texObj->MaxLod == params[0])
447 return GL_FALSE;
448 flush(ctx, texObj);
449 texObj->MaxLod = params[0];
450 return GL_TRUE;
451
452 case GL_TEXTURE_PRIORITY:
453 flush(ctx, texObj);
454 texObj->Priority = CLAMP(params[0], 0.0F, 1.0F);
455 return GL_TRUE;
456
457 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
458 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
459 if (texObj->MaxAnisotropy == params[0])
460 return GL_FALSE;
461 if (params[0] < 1.0) {
462 _mesa_error(ctx, GL_INVALID_VALUE, "glTexParameter(param)" );
463 return GL_FALSE;
464 }
465 flush(ctx, texObj);
466 /* clamp to max, that's what NVIDIA does */
467 texObj->MaxAnisotropy = MIN2(params[0],
468 ctx->Const.MaxTextureMaxAnisotropy);
469 return GL_TRUE;
470 }
471 else {
472 static GLuint count = 0;
473 if (count++ < 10)
474 _mesa_error(ctx, GL_INVALID_ENUM,
475 "glTexParameter(pname=GL_TEXTURE_MAX_ANISOTROPY_EXT)");
476 }
477 return GL_FALSE;
478
479 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
480 if (ctx->Extensions.ARB_shadow_ambient) {
481 if (texObj->CompareFailValue != params[0]) {
482 flush(ctx, texObj);
483 texObj->CompareFailValue = CLAMP(params[0], 0.0F, 1.0F);
484 return GL_TRUE;
485 }
486 }
487 else {
488 _mesa_error(ctx, GL_INVALID_ENUM,
489 "glTexParameter(pname=GL_TEXTURE_COMPARE_FAIL_VALUE_ARB)");
490 }
491 return GL_FALSE;
492
493 case GL_TEXTURE_LOD_BIAS:
494 /* NOTE: this is really part of OpenGL 1.4, not EXT_texture_lod_bias */
495 if (ctx->Extensions.EXT_texture_lod_bias) {
496 if (texObj->LodBias != params[0]) {
497 flush(ctx, texObj);
498 texObj->LodBias = params[0];
499 return GL_TRUE;
500 }
501 return GL_FALSE;
502 }
503 break;
504
505 case GL_TEXTURE_BORDER_COLOR:
506 flush(ctx, texObj);
507 texObj->BorderColor.f[RCOMP] = params[0];
508 texObj->BorderColor.f[GCOMP] = params[1];
509 texObj->BorderColor.f[BCOMP] = params[2];
510 texObj->BorderColor.f[ACOMP] = params[3];
511 return GL_TRUE;
512
513 default:
514 _mesa_error(ctx, GL_INVALID_ENUM, "glTexParameter(pname=0x%x)", pname);
515 }
516 return GL_FALSE;
517 }
518
519
520 void GLAPIENTRY
521 _mesa_TexParameterf(GLenum target, GLenum pname, GLfloat param)
522 {
523 GLboolean need_update;
524 struct gl_texture_object *texObj;
525 GET_CURRENT_CONTEXT(ctx);
526 ASSERT_OUTSIDE_BEGIN_END(ctx);
527
528 texObj = get_texobj(ctx, target, GL_FALSE);
529 if (!texObj)
530 return;
531
532 switch (pname) {
533 case GL_TEXTURE_MIN_FILTER:
534 case GL_TEXTURE_MAG_FILTER:
535 case GL_TEXTURE_WRAP_S:
536 case GL_TEXTURE_WRAP_T:
537 case GL_TEXTURE_WRAP_R:
538 case GL_TEXTURE_BASE_LEVEL:
539 case GL_TEXTURE_MAX_LEVEL:
540 case GL_GENERATE_MIPMAP_SGIS:
541 case GL_TEXTURE_COMPARE_MODE_ARB:
542 case GL_TEXTURE_COMPARE_FUNC_ARB:
543 case GL_DEPTH_TEXTURE_MODE_ARB:
544 {
545 /* convert float param to int */
546 GLint p[4];
547 p[0] = (GLint) param;
548 p[1] = p[2] = p[3] = 0;
549 need_update = set_tex_parameteri(ctx, texObj, pname, p);
550 }
551 break;
552 default:
553 {
554 /* this will generate an error if pname is illegal */
555 GLfloat p[4];
556 p[0] = param;
557 p[1] = p[2] = p[3] = 0.0F;
558 need_update = set_tex_parameterf(ctx, texObj, pname, p);
559 }
560 }
561
562 if (ctx->Driver.TexParameter && need_update) {
563 ctx->Driver.TexParameter(ctx, target, texObj, pname, &param);
564 }
565 }
566
567
568 void GLAPIENTRY
569 _mesa_TexParameterfv(GLenum target, GLenum pname, const GLfloat *params)
570 {
571 GLboolean need_update;
572 struct gl_texture_object *texObj;
573 GET_CURRENT_CONTEXT(ctx);
574 ASSERT_OUTSIDE_BEGIN_END(ctx);
575
576 texObj = get_texobj(ctx, target, GL_FALSE);
577 if (!texObj)
578 return;
579
580 switch (pname) {
581 case GL_TEXTURE_MIN_FILTER:
582 case GL_TEXTURE_MAG_FILTER:
583 case GL_TEXTURE_WRAP_S:
584 case GL_TEXTURE_WRAP_T:
585 case GL_TEXTURE_WRAP_R:
586 case GL_TEXTURE_BASE_LEVEL:
587 case GL_TEXTURE_MAX_LEVEL:
588 case GL_GENERATE_MIPMAP_SGIS:
589 case GL_TEXTURE_COMPARE_MODE_ARB:
590 case GL_TEXTURE_COMPARE_FUNC_ARB:
591 case GL_DEPTH_TEXTURE_MODE_ARB:
592 {
593 /* convert float param to int */
594 GLint p[4];
595 p[0] = (GLint) params[0];
596 p[1] = p[2] = p[3] = 0;
597 need_update = set_tex_parameteri(ctx, texObj, pname, p);
598 }
599 break;
600
601 #if FEATURE_OES_draw_texture
602 case GL_TEXTURE_CROP_RECT_OES:
603 {
604 /* convert float params to int */
605 GLint iparams[4];
606 iparams[0] = (GLint) params[0];
607 iparams[1] = (GLint) params[1];
608 iparams[2] = (GLint) params[2];
609 iparams[3] = (GLint) params[3];
610 need_update = set_tex_parameteri(ctx, texObj, pname, iparams);
611 }
612 break;
613 #endif
614
615 default:
616 /* this will generate an error if pname is illegal */
617 need_update = set_tex_parameterf(ctx, texObj, pname, params);
618 }
619
620 if (ctx->Driver.TexParameter && need_update) {
621 ctx->Driver.TexParameter(ctx, target, texObj, pname, params);
622 }
623 }
624
625
626 void GLAPIENTRY
627 _mesa_TexParameteri(GLenum target, GLenum pname, GLint param)
628 {
629 GLboolean need_update;
630 struct gl_texture_object *texObj;
631 GET_CURRENT_CONTEXT(ctx);
632 ASSERT_OUTSIDE_BEGIN_END(ctx);
633
634 texObj = get_texobj(ctx, target, GL_FALSE);
635 if (!texObj)
636 return;
637
638 switch (pname) {
639 case GL_TEXTURE_MIN_LOD:
640 case GL_TEXTURE_MAX_LOD:
641 case GL_TEXTURE_PRIORITY:
642 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
643 case GL_TEXTURE_LOD_BIAS:
644 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
645 {
646 GLfloat fparam[4];
647 fparam[0] = (GLfloat) param;
648 fparam[1] = fparam[2] = fparam[3] = 0.0F;
649 /* convert int param to float */
650 need_update = set_tex_parameterf(ctx, texObj, pname, fparam);
651 }
652 break;
653 default:
654 /* this will generate an error if pname is illegal */
655 {
656 GLint iparam[4];
657 iparam[0] = param;
658 iparam[1] = iparam[2] = iparam[3] = 0;
659 need_update = set_tex_parameteri(ctx, texObj, pname, iparam);
660 }
661 }
662
663 if (ctx->Driver.TexParameter && need_update) {
664 GLfloat fparam = (GLfloat) param;
665 ctx->Driver.TexParameter(ctx, target, texObj, pname, &fparam);
666 }
667 }
668
669
670 void GLAPIENTRY
671 _mesa_TexParameteriv(GLenum target, GLenum pname, const GLint *params)
672 {
673 GLboolean need_update;
674 struct gl_texture_object *texObj;
675 GET_CURRENT_CONTEXT(ctx);
676 ASSERT_OUTSIDE_BEGIN_END(ctx);
677
678 texObj = get_texobj(ctx, target, GL_FALSE);
679 if (!texObj)
680 return;
681
682 switch (pname) {
683 case GL_TEXTURE_BORDER_COLOR:
684 {
685 /* convert int params to float */
686 GLfloat fparams[4];
687 fparams[0] = INT_TO_FLOAT(params[0]);
688 fparams[1] = INT_TO_FLOAT(params[1]);
689 fparams[2] = INT_TO_FLOAT(params[2]);
690 fparams[3] = INT_TO_FLOAT(params[3]);
691 need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
692 }
693 break;
694 case GL_TEXTURE_MIN_LOD:
695 case GL_TEXTURE_MAX_LOD:
696 case GL_TEXTURE_PRIORITY:
697 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
698 case GL_TEXTURE_LOD_BIAS:
699 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
700 {
701 /* convert int param to float */
702 GLfloat fparams[4];
703 fparams[0] = (GLfloat) params[0];
704 fparams[1] = fparams[2] = fparams[3] = 0.0F;
705 need_update = set_tex_parameterf(ctx, texObj, pname, fparams);
706 }
707 break;
708 default:
709 /* this will generate an error if pname is illegal */
710 need_update = set_tex_parameteri(ctx, texObj, pname, params);
711 }
712
713 if (ctx->Driver.TexParameter && need_update) {
714 GLfloat fparams[4];
715 fparams[0] = INT_TO_FLOAT(params[0]);
716 if (pname == GL_TEXTURE_BORDER_COLOR ||
717 pname == GL_TEXTURE_CROP_RECT_OES) {
718 fparams[1] = INT_TO_FLOAT(params[1]);
719 fparams[2] = INT_TO_FLOAT(params[2]);
720 fparams[3] = INT_TO_FLOAT(params[3]);
721 }
722 ctx->Driver.TexParameter(ctx, target, texObj, pname, fparams);
723 }
724 }
725
726
727 /**
728 * Set tex parameter to integer value(s). Primarily intended to set
729 * integer-valued texture border color (for integer-valued textures).
730 * New in GL 3.0.
731 */
732 void GLAPIENTRY
733 _mesa_TexParameterIiv(GLenum target, GLenum pname, const GLint *params)
734 {
735 struct gl_texture_object *texObj;
736 GET_CURRENT_CONTEXT(ctx);
737 ASSERT_OUTSIDE_BEGIN_END(ctx);
738
739 texObj = get_texobj(ctx, target, GL_FALSE);
740 if (!texObj)
741 return;
742
743 switch (pname) {
744 case GL_TEXTURE_BORDER_COLOR:
745 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
746 /* set the integer-valued border color */
747 COPY_4V(texObj->BorderColor.i, params);
748 break;
749 default:
750 _mesa_TexParameteriv(target, pname, params);
751 break;
752 }
753 /* XXX no driver hook for TexParameterIiv() yet */
754 }
755
756
757 /**
758 * Set tex parameter to unsigned integer value(s). Primarily intended to set
759 * uint-valued texture border color (for integer-valued textures).
760 * New in GL 3.0
761 */
762 void GLAPIENTRY
763 _mesa_TexParameterIuiv(GLenum target, GLenum pname, const GLuint *params)
764 {
765 struct gl_texture_object *texObj;
766 GET_CURRENT_CONTEXT(ctx);
767 ASSERT_OUTSIDE_BEGIN_END(ctx);
768
769 texObj = get_texobj(ctx, target, GL_FALSE);
770 if (!texObj)
771 return;
772
773 switch (pname) {
774 case GL_TEXTURE_BORDER_COLOR:
775 FLUSH_VERTICES(ctx, _NEW_TEXTURE);
776 /* set the unsigned integer-valued border color */
777 COPY_4V(texObj->BorderColor.ui, params);
778 break;
779 default:
780 _mesa_TexParameteriv(target, pname, (const GLint *) params);
781 break;
782 }
783 /* XXX no driver hook for TexParameterIuiv() yet */
784 }
785
786
787
788
789 void GLAPIENTRY
790 _mesa_GetTexLevelParameterfv( GLenum target, GLint level,
791 GLenum pname, GLfloat *params )
792 {
793 GLint iparam;
794 _mesa_GetTexLevelParameteriv( target, level, pname, &iparam );
795 *params = (GLfloat) iparam;
796 }
797
798
799 void GLAPIENTRY
800 _mesa_GetTexLevelParameteriv( GLenum target, GLint level,
801 GLenum pname, GLint *params )
802 {
803 const struct gl_texture_unit *texUnit;
804 struct gl_texture_object *texObj;
805 const struct gl_texture_image *img = NULL;
806 GLboolean isProxy;
807 GLint maxLevels;
808 gl_format texFormat;
809 GET_CURRENT_CONTEXT(ctx);
810 ASSERT_OUTSIDE_BEGIN_END(ctx);
811
812 if (ctx->Texture.CurrentUnit >= ctx->Const.MaxCombinedTextureImageUnits) {
813 _mesa_error(ctx, GL_INVALID_OPERATION,
814 "glGetTexLevelParameteriv(current unit)");
815 return;
816 }
817
818 texUnit = _mesa_get_current_tex_unit(ctx);
819
820 /* this will catch bad target values */
821 maxLevels = _mesa_max_texture_levels(ctx, target);
822 if (maxLevels == 0) {
823 _mesa_error(ctx, GL_INVALID_ENUM,
824 "glGetTexLevelParameter[if]v(target=0x%x)", target);
825 return;
826 }
827
828 if (level < 0 || level >= maxLevels) {
829 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexLevelParameter[if]v" );
830 return;
831 }
832
833 texObj = _mesa_select_tex_object(ctx, texUnit, target);
834 _mesa_lock_texture(ctx, texObj);
835
836 img = _mesa_select_tex_image(ctx, texObj, target, level);
837 if (!img || !img->TexFormat) {
838 /* undefined texture image */
839 if (pname == GL_TEXTURE_COMPONENTS)
840 *params = 1;
841 else
842 *params = 0;
843 goto out;
844 }
845
846 texFormat = img->TexFormat;
847
848 isProxy = _mesa_is_proxy_texture(target);
849
850 switch (pname) {
851 case GL_TEXTURE_WIDTH:
852 *params = img->Width;
853 break;
854 case GL_TEXTURE_HEIGHT:
855 *params = img->Height;
856 break;
857 case GL_TEXTURE_DEPTH:
858 *params = img->Depth;
859 break;
860 case GL_TEXTURE_INTERNAL_FORMAT:
861 if (_mesa_is_format_compressed(img->TexFormat)) {
862 /* need to return the actual compressed format */
863 *params = _mesa_compressed_format_to_glenum(ctx, img->TexFormat);
864 }
865 else {
866 /* return the user's requested internal format */
867 *params = img->InternalFormat;
868 }
869 break;
870 case GL_TEXTURE_BORDER:
871 *params = img->Border;
872 break;
873 case GL_TEXTURE_RED_SIZE:
874 if (img->_BaseFormat == GL_RED) {
875 *params = _mesa_get_format_bits(texFormat, pname);
876 break;
877 }
878 /* FALLTHROUGH */
879 case GL_TEXTURE_GREEN_SIZE:
880 if (img->_BaseFormat == GL_RG) {
881 *params = _mesa_get_format_bits(texFormat, pname);
882 break;
883 }
884 /* FALLTHROUGH */
885 case GL_TEXTURE_BLUE_SIZE:
886 if (img->_BaseFormat == GL_RGB || img->_BaseFormat == GL_RGBA)
887 *params = _mesa_get_format_bits(texFormat, pname);
888 else
889 *params = 0;
890 break;
891 case GL_TEXTURE_ALPHA_SIZE:
892 if (img->_BaseFormat == GL_ALPHA ||
893 img->_BaseFormat == GL_LUMINANCE_ALPHA ||
894 img->_BaseFormat == GL_RGBA)
895 *params = _mesa_get_format_bits(texFormat, pname);
896 else
897 *params = 0;
898 break;
899 case GL_TEXTURE_INTENSITY_SIZE:
900 if (img->_BaseFormat != GL_INTENSITY)
901 *params = 0;
902 else {
903 *params = _mesa_get_format_bits(texFormat, pname);
904 if (*params == 0) {
905 /* intensity probably stored as rgb texture */
906 *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
907 _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
908 }
909 }
910 break;
911 case GL_TEXTURE_LUMINANCE_SIZE:
912 if (img->_BaseFormat != GL_LUMINANCE &&
913 img->_BaseFormat != GL_LUMINANCE_ALPHA)
914 *params = 0;
915 else {
916 *params = _mesa_get_format_bits(texFormat, pname);
917 if (*params == 0) {
918 /* luminance probably stored as rgb texture */
919 *params = MIN2(_mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE),
920 _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE));
921 }
922 }
923 break;
924 case GL_TEXTURE_INDEX_SIZE_EXT:
925 if (img->_BaseFormat == GL_COLOR_INDEX)
926 *params = _mesa_get_format_bits(texFormat, pname);
927 else
928 *params = 0;
929 break;
930 case GL_TEXTURE_DEPTH_SIZE_ARB:
931 if (ctx->Extensions.ARB_depth_texture)
932 *params = _mesa_get_format_bits(texFormat, pname);
933 else
934 _mesa_error(ctx, GL_INVALID_ENUM,
935 "glGetTexLevelParameter[if]v(pname)");
936 break;
937 case GL_TEXTURE_STENCIL_SIZE_EXT:
938 if (ctx->Extensions.EXT_packed_depth_stencil ||
939 ctx->Extensions.ARB_framebuffer_object) {
940 *params = _mesa_get_format_bits(texFormat, pname);
941 }
942 else {
943 _mesa_error(ctx, GL_INVALID_ENUM,
944 "glGetTexLevelParameter[if]v(pname)");
945 }
946 break;
947 case GL_TEXTURE_SHARED_SIZE:
948 if (ctx->VersionMajor >= 3) {
949 /* XXX return number of exponent bits for shared exponent texture
950 * formats, like GL_RGB9_E5.
951 */
952 *params = 0;
953 }
954 else {
955 _mesa_error(ctx, GL_INVALID_ENUM,
956 "glGetTexLevelParameter[if]v(pname)");
957 }
958 break;
959
960 /* GL_ARB_texture_compression */
961 case GL_TEXTURE_COMPRESSED_IMAGE_SIZE:
962 if (_mesa_is_format_compressed(img->TexFormat) && !isProxy) {
963 *params = _mesa_format_image_size(texFormat, img->Width,
964 img->Height, img->Depth);
965 }
966 else {
967 _mesa_error(ctx, GL_INVALID_OPERATION,
968 "glGetTexLevelParameter[if]v(pname)");
969 }
970 break;
971 case GL_TEXTURE_COMPRESSED:
972 *params = (GLint) _mesa_is_format_compressed(img->TexFormat);
973 break;
974
975 /* GL_ARB_texture_float */
976 case GL_TEXTURE_RED_TYPE_ARB:
977 if (ctx->Extensions.ARB_texture_float) {
978 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_RED_SIZE) ?
979 _mesa_get_format_datatype(texFormat) : GL_NONE;
980 }
981 else {
982 _mesa_error(ctx, GL_INVALID_ENUM,
983 "glGetTexLevelParameter[if]v(pname)");
984 }
985 break;
986 case GL_TEXTURE_GREEN_TYPE_ARB:
987 if (ctx->Extensions.ARB_texture_float) {
988 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_GREEN_SIZE) ?
989 _mesa_get_format_datatype(texFormat) : GL_NONE;
990 }
991 else {
992 _mesa_error(ctx, GL_INVALID_ENUM,
993 "glGetTexLevelParameter[if]v(pname)");
994 }
995 break;
996 case GL_TEXTURE_BLUE_TYPE_ARB:
997 if (ctx->Extensions.ARB_texture_float) {
998 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_BLUE_SIZE) ?
999 _mesa_get_format_datatype(texFormat) : GL_NONE;
1000 }
1001 else {
1002 _mesa_error(ctx, GL_INVALID_ENUM,
1003 "glGetTexLevelParameter[if]v(pname)");
1004 }
1005 break;
1006 case GL_TEXTURE_ALPHA_TYPE_ARB:
1007 if (ctx->Extensions.ARB_texture_float) {
1008 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_ALPHA_SIZE) ?
1009 _mesa_get_format_datatype(texFormat) : GL_NONE;
1010 }
1011 else {
1012 _mesa_error(ctx, GL_INVALID_ENUM,
1013 "glGetTexLevelParameter[if]v(pname)");
1014 }
1015 break;
1016 case GL_TEXTURE_LUMINANCE_TYPE_ARB:
1017 if (ctx->Extensions.ARB_texture_float) {
1018 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_LUMINANCE_SIZE) ?
1019 _mesa_get_format_datatype(texFormat) : GL_NONE;
1020 }
1021 else {
1022 _mesa_error(ctx, GL_INVALID_ENUM,
1023 "glGetTexLevelParameter[if]v(pname)");
1024 }
1025 break;
1026 case GL_TEXTURE_INTENSITY_TYPE_ARB:
1027 if (ctx->Extensions.ARB_texture_float) {
1028 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_INTENSITY_SIZE) ?
1029 _mesa_get_format_datatype(texFormat) : GL_NONE;
1030 }
1031 else {
1032 _mesa_error(ctx, GL_INVALID_ENUM,
1033 "glGetTexLevelParameter[if]v(pname)");
1034 }
1035 break;
1036 case GL_TEXTURE_DEPTH_TYPE_ARB:
1037 if (ctx->Extensions.ARB_texture_float) {
1038 *params = _mesa_get_format_bits(texFormat, GL_TEXTURE_DEPTH_SIZE) ?
1039 _mesa_get_format_datatype(texFormat) : GL_NONE;
1040 }
1041 else {
1042 _mesa_error(ctx, GL_INVALID_ENUM,
1043 "glGetTexLevelParameter[if]v(pname)");
1044 }
1045 break;
1046
1047 default:
1048 _mesa_error(ctx, GL_INVALID_ENUM,
1049 "glGetTexLevelParameter[if]v(pname)");
1050 }
1051
1052 out:
1053 _mesa_unlock_texture(ctx, texObj);
1054 }
1055
1056
1057
1058 void GLAPIENTRY
1059 _mesa_GetTexParameterfv( GLenum target, GLenum pname, GLfloat *params )
1060 {
1061 struct gl_texture_object *obj;
1062 GLboolean error = GL_FALSE;
1063 GET_CURRENT_CONTEXT(ctx);
1064 ASSERT_OUTSIDE_BEGIN_END(ctx);
1065
1066 obj = get_texobj(ctx, target, GL_TRUE);
1067 if (!obj)
1068 return;
1069
1070 _mesa_lock_texture(ctx, obj);
1071 switch (pname) {
1072 case GL_TEXTURE_MAG_FILTER:
1073 *params = ENUM_TO_FLOAT(obj->MagFilter);
1074 break;
1075 case GL_TEXTURE_MIN_FILTER:
1076 *params = ENUM_TO_FLOAT(obj->MinFilter);
1077 break;
1078 case GL_TEXTURE_WRAP_S:
1079 *params = ENUM_TO_FLOAT(obj->WrapS);
1080 break;
1081 case GL_TEXTURE_WRAP_T:
1082 *params = ENUM_TO_FLOAT(obj->WrapT);
1083 break;
1084 case GL_TEXTURE_WRAP_R:
1085 *params = ENUM_TO_FLOAT(obj->WrapR);
1086 break;
1087 case GL_TEXTURE_BORDER_COLOR:
1088 params[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
1089 params[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
1090 params[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
1091 params[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
1092 break;
1093 case GL_TEXTURE_RESIDENT:
1094 {
1095 GLboolean resident;
1096 if (ctx->Driver.IsTextureResident)
1097 resident = ctx->Driver.IsTextureResident(ctx, obj);
1098 else
1099 resident = GL_TRUE;
1100 *params = ENUM_TO_FLOAT(resident);
1101 }
1102 break;
1103 case GL_TEXTURE_PRIORITY:
1104 *params = obj->Priority;
1105 break;
1106 case GL_TEXTURE_MIN_LOD:
1107 *params = obj->MinLod;
1108 break;
1109 case GL_TEXTURE_MAX_LOD:
1110 *params = obj->MaxLod;
1111 break;
1112 case GL_TEXTURE_BASE_LEVEL:
1113 *params = (GLfloat) obj->BaseLevel;
1114 break;
1115 case GL_TEXTURE_MAX_LEVEL:
1116 *params = (GLfloat) obj->MaxLevel;
1117 break;
1118 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1119 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
1120 *params = obj->MaxAnisotropy;
1121 }
1122 else
1123 error = GL_TRUE;
1124 break;
1125 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
1126 if (ctx->Extensions.ARB_shadow_ambient) {
1127 *params = obj->CompareFailValue;
1128 }
1129 else
1130 error = GL_TRUE;
1131 break;
1132 case GL_GENERATE_MIPMAP_SGIS:
1133 *params = (GLfloat) obj->GenerateMipmap;
1134 break;
1135 case GL_TEXTURE_COMPARE_MODE_ARB:
1136 if (ctx->Extensions.ARB_shadow) {
1137 *params = (GLfloat) obj->CompareMode;
1138 }
1139 else
1140 error = GL_TRUE;
1141 break;
1142 case GL_TEXTURE_COMPARE_FUNC_ARB:
1143 if (ctx->Extensions.ARB_shadow) {
1144 *params = (GLfloat) obj->CompareFunc;
1145 }
1146 else
1147 error = GL_TRUE;
1148 break;
1149 case GL_DEPTH_TEXTURE_MODE_ARB:
1150 if (ctx->Extensions.ARB_depth_texture) {
1151 *params = (GLfloat) obj->DepthMode;
1152 }
1153 else
1154 error = GL_TRUE;
1155 break;
1156 case GL_TEXTURE_LOD_BIAS:
1157 if (ctx->Extensions.EXT_texture_lod_bias) {
1158 *params = obj->LodBias;
1159 }
1160 else
1161 error = GL_TRUE;
1162 break;
1163 #if FEATURE_OES_draw_texture
1164 case GL_TEXTURE_CROP_RECT_OES:
1165 params[0] = obj->CropRect[0];
1166 params[1] = obj->CropRect[1];
1167 params[2] = obj->CropRect[2];
1168 params[3] = obj->CropRect[3];
1169 break;
1170 #endif
1171
1172 case GL_TEXTURE_SWIZZLE_R_EXT:
1173 case GL_TEXTURE_SWIZZLE_G_EXT:
1174 case GL_TEXTURE_SWIZZLE_B_EXT:
1175 case GL_TEXTURE_SWIZZLE_A_EXT:
1176 if (ctx->Extensions.EXT_texture_swizzle) {
1177 GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
1178 *params = (GLfloat) obj->Swizzle[comp];
1179 }
1180 else {
1181 error = GL_TRUE;
1182 }
1183 break;
1184
1185 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1186 if (ctx->Extensions.EXT_texture_swizzle) {
1187 GLuint comp;
1188 for (comp = 0; comp < 4; comp++) {
1189 params[comp] = (GLfloat) obj->Swizzle[comp];
1190 }
1191 }
1192 else {
1193 error = GL_TRUE;
1194 }
1195 break;
1196
1197 default:
1198 error = GL_TRUE;
1199 break;
1200 }
1201
1202 if (error)
1203 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameterfv(pname=0x%x)",
1204 pname);
1205
1206 _mesa_unlock_texture(ctx, obj);
1207 }
1208
1209
1210 void GLAPIENTRY
1211 _mesa_GetTexParameteriv( GLenum target, GLenum pname, GLint *params )
1212 {
1213 struct gl_texture_object *obj;
1214 GLboolean error = GL_FALSE;
1215 GET_CURRENT_CONTEXT(ctx);
1216 ASSERT_OUTSIDE_BEGIN_END(ctx);
1217
1218 obj = get_texobj(ctx, target, GL_TRUE);
1219 if (!obj)
1220 return;
1221
1222 _mesa_lock_texture(ctx, obj);
1223 switch (pname) {
1224 case GL_TEXTURE_MAG_FILTER:
1225 *params = (GLint) obj->MagFilter;
1226 break;;
1227 case GL_TEXTURE_MIN_FILTER:
1228 *params = (GLint) obj->MinFilter;
1229 break;;
1230 case GL_TEXTURE_WRAP_S:
1231 *params = (GLint) obj->WrapS;
1232 break;;
1233 case GL_TEXTURE_WRAP_T:
1234 *params = (GLint) obj->WrapT;
1235 break;;
1236 case GL_TEXTURE_WRAP_R:
1237 *params = (GLint) obj->WrapR;
1238 break;;
1239 case GL_TEXTURE_BORDER_COLOR:
1240 {
1241 GLfloat b[4];
1242 b[0] = CLAMP(obj->BorderColor.f[0], 0.0F, 1.0F);
1243 b[1] = CLAMP(obj->BorderColor.f[1], 0.0F, 1.0F);
1244 b[2] = CLAMP(obj->BorderColor.f[2], 0.0F, 1.0F);
1245 b[3] = CLAMP(obj->BorderColor.f[3], 0.0F, 1.0F);
1246 params[0] = FLOAT_TO_INT(b[0]);
1247 params[1] = FLOAT_TO_INT(b[1]);
1248 params[2] = FLOAT_TO_INT(b[2]);
1249 params[3] = FLOAT_TO_INT(b[3]);
1250 }
1251 break;;
1252 case GL_TEXTURE_RESIDENT:
1253 {
1254 GLboolean resident;
1255 if (ctx->Driver.IsTextureResident)
1256 resident = ctx->Driver.IsTextureResident(ctx, obj);
1257 else
1258 resident = GL_TRUE;
1259 *params = (GLint) resident;
1260 }
1261 break;;
1262 case GL_TEXTURE_PRIORITY:
1263 *params = FLOAT_TO_INT(obj->Priority);
1264 break;;
1265 case GL_TEXTURE_MIN_LOD:
1266 *params = (GLint) obj->MinLod;
1267 break;;
1268 case GL_TEXTURE_MAX_LOD:
1269 *params = (GLint) obj->MaxLod;
1270 break;;
1271 case GL_TEXTURE_BASE_LEVEL:
1272 *params = obj->BaseLevel;
1273 break;;
1274 case GL_TEXTURE_MAX_LEVEL:
1275 *params = obj->MaxLevel;
1276 break;;
1277 case GL_TEXTURE_MAX_ANISOTROPY_EXT:
1278 if (ctx->Extensions.EXT_texture_filter_anisotropic) {
1279 *params = (GLint) obj->MaxAnisotropy;
1280 }
1281 else {
1282 error = GL_TRUE;
1283 }
1284 break;
1285 case GL_TEXTURE_COMPARE_FAIL_VALUE_ARB:
1286 if (ctx->Extensions.ARB_shadow_ambient) {
1287 *params = (GLint) FLOAT_TO_INT(obj->CompareFailValue);
1288 }
1289 else {
1290 error = GL_TRUE;
1291 }
1292 break;
1293 case GL_GENERATE_MIPMAP_SGIS:
1294 *params = (GLint) obj->GenerateMipmap;
1295 break;
1296 case GL_TEXTURE_COMPARE_MODE_ARB:
1297 if (ctx->Extensions.ARB_shadow) {
1298 *params = (GLint) obj->CompareMode;
1299 }
1300 else {
1301 error = GL_TRUE;
1302 }
1303 break;
1304 case GL_TEXTURE_COMPARE_FUNC_ARB:
1305 if (ctx->Extensions.ARB_shadow) {
1306 *params = (GLint) obj->CompareFunc;
1307 }
1308 else {
1309 error = GL_TRUE;
1310 }
1311 break;
1312 case GL_DEPTH_TEXTURE_MODE_ARB:
1313 if (ctx->Extensions.ARB_depth_texture) {
1314 *params = (GLint) obj->DepthMode;
1315 }
1316 else {
1317 error = GL_TRUE;
1318 }
1319 break;
1320 case GL_TEXTURE_LOD_BIAS:
1321 if (ctx->Extensions.EXT_texture_lod_bias) {
1322 *params = (GLint) obj->LodBias;
1323 }
1324 else {
1325 error = GL_TRUE;
1326 }
1327 break;
1328 #if FEATURE_OES_draw_texture
1329 case GL_TEXTURE_CROP_RECT_OES:
1330 params[0] = obj->CropRect[0];
1331 params[1] = obj->CropRect[1];
1332 params[2] = obj->CropRect[2];
1333 params[3] = obj->CropRect[3];
1334 break;
1335 #endif
1336 case GL_TEXTURE_SWIZZLE_R_EXT:
1337 case GL_TEXTURE_SWIZZLE_G_EXT:
1338 case GL_TEXTURE_SWIZZLE_B_EXT:
1339 case GL_TEXTURE_SWIZZLE_A_EXT:
1340 if (ctx->Extensions.EXT_texture_swizzle) {
1341 GLuint comp = pname - GL_TEXTURE_SWIZZLE_R_EXT;
1342 *params = obj->Swizzle[comp];
1343 }
1344 else {
1345 error = GL_TRUE;
1346 }
1347 break;
1348
1349 case GL_TEXTURE_SWIZZLE_RGBA_EXT:
1350 if (ctx->Extensions.EXT_texture_swizzle) {
1351 COPY_4V(params, obj->Swizzle);
1352 }
1353 else {
1354 error = GL_TRUE;
1355 }
1356 break;
1357
1358 default:
1359 ; /* silence warnings */
1360 }
1361
1362 if (error)
1363 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexParameteriv(pname=0x%x)",
1364 pname);
1365
1366 _mesa_unlock_texture(ctx, obj);
1367 }
1368
1369
1370 /** New in GL 3.0 */
1371 void GLAPIENTRY
1372 _mesa_GetTexParameterIiv(GLenum target, GLenum pname, GLint *params)
1373 {
1374 struct gl_texture_object *texObj;
1375 GET_CURRENT_CONTEXT(ctx);
1376 ASSERT_OUTSIDE_BEGIN_END(ctx);
1377
1378 texObj = get_texobj(ctx, target, GL_TRUE);
1379
1380 switch (pname) {
1381 case GL_TEXTURE_BORDER_COLOR:
1382 COPY_4V(params, texObj->BorderColor.i);
1383 break;
1384 default:
1385 _mesa_GetTexParameteriv(target, pname, params);
1386 }
1387 }
1388
1389
1390 /** New in GL 3.0 */
1391 void GLAPIENTRY
1392 _mesa_GetTexParameterIuiv(GLenum target, GLenum pname, GLuint *params)
1393 {
1394 struct gl_texture_object *texObj;
1395 GET_CURRENT_CONTEXT(ctx);
1396 ASSERT_OUTSIDE_BEGIN_END(ctx);
1397
1398 texObj = get_texobj(ctx, target, GL_TRUE);
1399
1400 switch (pname) {
1401 case GL_TEXTURE_BORDER_COLOR:
1402 COPY_4V(params, texObj->BorderColor.i);
1403 break;
1404 default:
1405 {
1406 GLint ip[4];
1407 _mesa_GetTexParameteriv(target, pname, ip);
1408 params[0] = ip[0];
1409 if (pname == GL_TEXTURE_SWIZZLE_RGBA_EXT ||
1410 pname == GL_TEXTURE_CROP_RECT_OES) {
1411 params[1] = ip[1];
1412 params[2] = ip[2];
1413 params[3] = ip[3];
1414 }
1415 }
1416 }
1417 }