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1dbab88784f6070d9e42854e049af0f9e9718f17
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.1
4 *
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file teximage.c
28 * Texture images manipulation functions.
29 *
30 * \note Mesa's native texture data type is GLchan. Native formats are
31 * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, and
32 * GL_COLOR_INDEX.
33 *
34 * \note Device drivers are free to implement any internal format they want.
35 */
36
37
38 #include "glheader.h"
39 #include "context.h"
40 #include "convolve.h"
41 #include "image.h"
42 #include "imports.h"
43 #include "macros.h"
44 #include "state.h"
45 #include "texcompress.h"
46 #include "texformat.h"
47 #include "teximage.h"
48 #include "texstate.h"
49 #include "texstore.h"
50 #include "mtypes.h"
51
52
53 #if 0
54 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
55 {
56 #if CHAN_TYPE == GL_FLOAT
57 _mesa_problem(NULL, "PrintTexture doesn't support float channels");
58 #else
59 GLuint i, j, c;
60 const GLchan *data = (const GLchan *) img->Data;
61
62 if (!data) {
63 _mesa_printf("No texture data\n");
64 return;
65 }
66
67 switch (img->Format) {
68 case GL_ALPHA:
69 case GL_LUMINANCE:
70 case GL_INTENSITY:
71 case GL_COLOR_INDEX:
72 c = 1;
73 break;
74 case GL_LUMINANCE_ALPHA:
75 c = 2;
76 break;
77 case GL_RGB:
78 c = 3;
79 break;
80 case GL_RGBA:
81 c = 4;
82 break;
83 default:
84 _mesa_problem(NULL, "error in PrintTexture\n");
85 return;
86 }
87
88 for (i = 0; i < img->Height; i++) {
89 for (j = 0; j < img->Width; j++) {
90 if (c==1)
91 _mesa_printf("%02x ", data[0]);
92 else if (c==2)
93 _mesa_printf("%02x%02x ", data[0], data[1]);
94 else if (c==3)
95 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
96 else if (c==4)
97 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
98 data += (img->RowStride - img->Width) * c;
99 }
100 _mesa_printf("\n");
101 }
102 #endif
103 }
104 #endif
105
106
107 /*
108 * Compute floor(log_base_2(n)).
109 * If n < 0 return -1.
110 */
111 static int
112 logbase2( int n )
113 {
114 GLint i = 1;
115 GLint log2 = 0;
116
117 if (n < 0)
118 return -1;
119
120 if (n == 0)
121 return 0;
122
123 while ( n > i ) {
124 i *= 2;
125 log2++;
126 }
127 if (i != n) {
128 return log2 - 1;
129 }
130 else {
131 return log2;
132 }
133 }
134
135
136
137 /**
138 * Return the simple base format for a given internal texture format.
139 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
140 *
141 * \param ctx GL context.
142 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
143 *
144 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
145 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
146 *
147 * This is the format which is used during texture application (i.e. the
148 * texture format and env mode determine the arithmetic used.
149 */
150 GLint
151 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
152 {
153 switch (internalFormat) {
154 case GL_ALPHA:
155 case GL_ALPHA4:
156 case GL_ALPHA8:
157 case GL_ALPHA12:
158 case GL_ALPHA16:
159 return GL_ALPHA;
160 case 1:
161 case GL_LUMINANCE:
162 case GL_LUMINANCE4:
163 case GL_LUMINANCE8:
164 case GL_LUMINANCE12:
165 case GL_LUMINANCE16:
166 return GL_LUMINANCE;
167 case 2:
168 case GL_LUMINANCE_ALPHA:
169 case GL_LUMINANCE4_ALPHA4:
170 case GL_LUMINANCE6_ALPHA2:
171 case GL_LUMINANCE8_ALPHA8:
172 case GL_LUMINANCE12_ALPHA4:
173 case GL_LUMINANCE12_ALPHA12:
174 case GL_LUMINANCE16_ALPHA16:
175 return GL_LUMINANCE_ALPHA;
176 case GL_INTENSITY:
177 case GL_INTENSITY4:
178 case GL_INTENSITY8:
179 case GL_INTENSITY12:
180 case GL_INTENSITY16:
181 return GL_INTENSITY;
182 case 3:
183 case GL_RGB:
184 case GL_R3_G3_B2:
185 case GL_RGB4:
186 case GL_RGB5:
187 case GL_RGB8:
188 case GL_RGB10:
189 case GL_RGB12:
190 case GL_RGB16:
191 return GL_RGB;
192 case 4:
193 case GL_RGBA:
194 case GL_RGBA2:
195 case GL_RGBA4:
196 case GL_RGB5_A1:
197 case GL_RGBA8:
198 case GL_RGB10_A2:
199 case GL_RGBA12:
200 case GL_RGBA16:
201 return GL_RGBA;
202 default:
203 ; /* fallthrough */
204 }
205
206 if (ctx->Extensions.EXT_paletted_texture) {
207 switch (internalFormat) {
208 case GL_COLOR_INDEX:
209 case GL_COLOR_INDEX1_EXT:
210 case GL_COLOR_INDEX2_EXT:
211 case GL_COLOR_INDEX4_EXT:
212 case GL_COLOR_INDEX8_EXT:
213 case GL_COLOR_INDEX12_EXT:
214 case GL_COLOR_INDEX16_EXT:
215 return GL_COLOR_INDEX;
216 default:
217 ; /* fallthrough */
218 }
219 }
220
221 if (ctx->Extensions.SGIX_depth_texture) {
222 switch (internalFormat) {
223 case GL_DEPTH_COMPONENT:
224 case GL_DEPTH_COMPONENT16_SGIX:
225 case GL_DEPTH_COMPONENT24_SGIX:
226 case GL_DEPTH_COMPONENT32_SGIX:
227 return GL_DEPTH_COMPONENT;
228 default:
229 ; /* fallthrough */
230 }
231 }
232
233 if (ctx->Extensions.ARB_texture_compression) {
234 switch (internalFormat) {
235 case GL_COMPRESSED_ALPHA:
236 return GL_ALPHA;
237 case GL_COMPRESSED_LUMINANCE:
238 return GL_LUMINANCE;
239 case GL_COMPRESSED_LUMINANCE_ALPHA:
240 return GL_LUMINANCE_ALPHA;
241 case GL_COMPRESSED_INTENSITY:
242 return GL_INTENSITY;
243 case GL_COMPRESSED_RGB:
244 return GL_RGB;
245 case GL_COMPRESSED_RGBA:
246 return GL_RGBA;
247 default:
248 ; /* fallthrough */
249 }
250 }
251
252 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
253 switch (internalFormat) {
254 case GL_COMPRESSED_RGB_FXT1_3DFX:
255 return GL_RGB;
256 case GL_COMPRESSED_RGBA_FXT1_3DFX:
257 return GL_RGBA;
258 default:
259 ; /* fallthrough */
260 }
261 }
262
263 if (ctx->Extensions.EXT_texture_compression_s3tc) {
264 switch (internalFormat) {
265 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
266 return GL_RGB;
267 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
268 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
269 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
270 return GL_RGBA;
271 default:
272 ; /* fallthrough */
273 }
274 }
275
276 if (ctx->Extensions.S3_s3tc) {
277 switch (internalFormat) {
278 case GL_RGB_S3TC:
279 case GL_RGB4_S3TC:
280 return GL_RGB;
281 case GL_RGBA_S3TC:
282 case GL_RGBA4_S3TC:
283 return GL_RGBA;
284 default:
285 ; /* fallthrough */
286 }
287 }
288
289 if (ctx->Extensions.MESA_ycbcr_texture) {
290 if (internalFormat == GL_YCBCR_MESA)
291 return GL_YCBCR_MESA;
292 }
293
294 if (ctx->Extensions.ARB_texture_float) {
295 switch (internalFormat) {
296 case GL_ALPHA16F_ARB:
297 case GL_ALPHA32F_ARB:
298 return GL_ALPHA;
299 case GL_RGBA16F_ARB:
300 case GL_RGBA32F_ARB:
301 return GL_RGBA;
302 case GL_RGB16F_ARB:
303 case GL_RGB32F_ARB:
304 return GL_RGB;
305 case GL_INTENSITY16F_ARB:
306 case GL_INTENSITY32F_ARB:
307 return GL_INTENSITY;
308 case GL_LUMINANCE16F_ARB:
309 case GL_LUMINANCE32F_ARB:
310 return GL_LUMINANCE;
311 case GL_LUMINANCE_ALPHA16F_ARB:
312 case GL_LUMINANCE_ALPHA32F_ARB:
313 return GL_LUMINANCE_ALPHA;
314 default:
315 ; /* fallthrough */
316 }
317 }
318
319 return -1; /* error */
320 }
321
322
323 /**
324 * Test if the given internal texture format is a color/RGBA format
325 * (i.e., not color index, depth, stencil, etc).
326 * \param internalFormat an internal texture format token (or 1, 2, 3, or 4)
327 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
328 */
329 static GLboolean
330 is_color_format(GLenum internalFormat)
331 {
332 switch (internalFormat) {
333 case GL_ALPHA:
334 case GL_ALPHA4:
335 case GL_ALPHA8:
336 case GL_ALPHA12:
337 case GL_ALPHA16:
338 case 1:
339 case GL_LUMINANCE:
340 case GL_LUMINANCE4:
341 case GL_LUMINANCE8:
342 case GL_LUMINANCE12:
343 case GL_LUMINANCE16:
344 case 2:
345 case GL_LUMINANCE_ALPHA:
346 case GL_LUMINANCE4_ALPHA4:
347 case GL_LUMINANCE6_ALPHA2:
348 case GL_LUMINANCE8_ALPHA8:
349 case GL_LUMINANCE12_ALPHA4:
350 case GL_LUMINANCE12_ALPHA12:
351 case GL_LUMINANCE16_ALPHA16:
352 case GL_INTENSITY:
353 case GL_INTENSITY4:
354 case GL_INTENSITY8:
355 case GL_INTENSITY12:
356 case GL_INTENSITY16:
357 case 3:
358 case GL_RGB:
359 case GL_R3_G3_B2:
360 case GL_RGB4:
361 case GL_RGB5:
362 case GL_RGB8:
363 case GL_RGB10:
364 case GL_RGB12:
365 case GL_RGB16:
366 case 4:
367 case GL_RGBA:
368 case GL_RGBA2:
369 case GL_RGBA4:
370 case GL_RGB5_A1:
371 case GL_RGBA8:
372 case GL_RGB10_A2:
373 case GL_RGBA12:
374 case GL_RGBA16:
375 /* float texture formats */
376 case GL_ALPHA16F_ARB:
377 case GL_ALPHA32F_ARB:
378 case GL_LUMINANCE16F_ARB:
379 case GL_LUMINANCE32F_ARB:
380 case GL_LUMINANCE_ALPHA16F_ARB:
381 case GL_LUMINANCE_ALPHA32F_ARB:
382 case GL_INTENSITY16F_ARB:
383 case GL_INTENSITY32F_ARB:
384 case GL_RGB16F_ARB:
385 case GL_RGB32F_ARB:
386 case GL_RGBA16F_ARB:
387 case GL_RGBA32F_ARB:
388 return GL_TRUE;
389 case GL_YCBCR_MESA: /* not considered to be RGB */
390 default:
391 return GL_FALSE;
392 }
393 }
394
395
396 /**
397 * Test if the given internal texture format is a color index format.
398 */
399 static GLboolean
400 is_index_format(GLenum internalFormat)
401 {
402 switch (internalFormat) {
403 case GL_COLOR_INDEX:
404 case GL_COLOR_INDEX1_EXT:
405 case GL_COLOR_INDEX2_EXT:
406 case GL_COLOR_INDEX4_EXT:
407 case GL_COLOR_INDEX8_EXT:
408 case GL_COLOR_INDEX12_EXT:
409 case GL_COLOR_INDEX16_EXT:
410 return GL_TRUE;
411 default:
412 return GL_FALSE;
413 }
414 }
415
416
417 /**
418 * Test if the given internal texture format is a depth component format.
419 */
420 static GLboolean
421 is_depth_format(GLenum internalFormat)
422 {
423 switch (internalFormat) {
424 case GL_DEPTH_COMPONENT16_ARB:
425 case GL_DEPTH_COMPONENT24_ARB:
426 case GL_DEPTH_COMPONENT32_ARB:
427 case GL_DEPTH_COMPONENT:
428 return GL_TRUE;
429 default:
430 return GL_FALSE;
431 }
432 }
433
434
435 /**
436 * Test if the given internal texture format is a YCbCr format.
437 */
438 static GLboolean
439 is_ycbcr_format(GLenum internalFormat)
440 {
441 switch (internalFormat) {
442 case GL_YCBCR_MESA:
443 return GL_TRUE;
444 default:
445 return GL_FALSE;
446 }
447 }
448
449
450 /**
451 * Test if it is a supported compressed format.
452 *
453 * \param internalFormat the internal format token provided by the user.
454 *
455 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
456 * GL_FALSE otherwise.
457 *
458 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
459 * are supported.
460 */
461 static GLboolean
462 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
463 {
464 switch (internalFormat) {
465 case GL_COMPRESSED_RGB_FXT1_3DFX:
466 case GL_COMPRESSED_RGBA_FXT1_3DFX:
467 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
468 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
469 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
471 case GL_RGB_S3TC:
472 case GL_RGB4_S3TC:
473 case GL_RGBA_S3TC:
474 case GL_RGBA4_S3TC:
475 return GL_TRUE;
476 default:
477 return GL_FALSE;
478 }
479 }
480
481
482 /**
483 * Store a gl_texture_image pointer in a gl_texture_object structure
484 * according to the target and level parameters.
485 *
486 * \param tObj texture object.
487 * \param target texture target.
488 * \param level image level.
489 * \param texImage texture image.
490 *
491 * This was basically prompted by the introduction of cube maps.
492 */
493 void
494 _mesa_set_tex_image(struct gl_texture_object *tObj,
495 GLenum target, GLint level,
496 struct gl_texture_image *texImage)
497 {
498 ASSERT(tObj);
499 ASSERT(texImage);
500 switch (target) {
501 case GL_TEXTURE_1D:
502 case GL_TEXTURE_2D:
503 case GL_TEXTURE_3D:
504 tObj->Image[0][level] = texImage;
505 return;
506 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
507 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
508 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
509 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
510 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
511 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: {
512 GLuint face = ((GLuint) target -
513 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
514 tObj->Image[face][level] = texImage;
515 break;
516 }
517 case GL_TEXTURE_RECTANGLE_NV:
518 ASSERT(level == 0);
519 tObj->Image[0][level] = texImage;
520 return;
521 default:
522 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
523 return;
524 }
525 }
526
527
528 /**
529 * Allocate a texture image structure.
530 *
531 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
532 * driver.
533 *
534 * \return a pointer to gl_texture_image struct with all fields initialized to
535 * zero.
536 */
537 struct gl_texture_image *
538 _mesa_new_texture_image( GLcontext *ctx )
539 {
540 (void) ctx;
541 return CALLOC_STRUCT(gl_texture_image);
542 }
543
544
545 /**
546 * Free texture image.
547 *
548 * \param teximage texture image.
549 *
550 * Free the texture image structure and the associated image data if it's not
551 * marked as client data.
552 */
553 void
554 _mesa_delete_texture_image( struct gl_texture_image *teximage )
555 {
556 if (teximage->Data && !teximage->IsClientData) {
557 MESA_PBUFFER_FREE( teximage->Data );
558 teximage->Data = NULL;
559 }
560 FREE( teximage );
561 }
562
563
564 /**
565 * Test if a target is a proxy target.
566 *
567 * \param target texture target.
568 *
569 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
570 */
571 static GLboolean
572 is_proxy_target(GLenum target)
573 {
574 return (target == GL_PROXY_TEXTURE_1D ||
575 target == GL_PROXY_TEXTURE_2D ||
576 target == GL_PROXY_TEXTURE_3D ||
577 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
578 target == GL_PROXY_TEXTURE_RECTANGLE_NV);
579 }
580
581
582 /**
583 * Get the texture object that corresponds to the target of the given texture unit.
584 *
585 * \param ctx GL context.
586 * \param texUnit texture unit.
587 * \param target texture target.
588 *
589 * \return pointer to the texture object on success, or NULL on failure.
590 *
591 * \sa gl_texture_unit.
592 */
593 struct gl_texture_object *
594 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
595 GLenum target)
596 {
597 switch (target) {
598 case GL_TEXTURE_1D:
599 return texUnit->Current1D;
600 case GL_PROXY_TEXTURE_1D:
601 return ctx->Texture.Proxy1D;
602 case GL_TEXTURE_2D:
603 return texUnit->Current2D;
604 case GL_PROXY_TEXTURE_2D:
605 return ctx->Texture.Proxy2D;
606 case GL_TEXTURE_3D:
607 return texUnit->Current3D;
608 case GL_PROXY_TEXTURE_3D:
609 return ctx->Texture.Proxy3D;
610 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
611 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
612 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
613 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
614 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
615 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
616 case GL_TEXTURE_CUBE_MAP_ARB:
617 return ctx->Extensions.ARB_texture_cube_map
618 ? texUnit->CurrentCubeMap : NULL;
619 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
620 return ctx->Extensions.ARB_texture_cube_map
621 ? ctx->Texture.ProxyCubeMap : NULL;
622 case GL_TEXTURE_RECTANGLE_NV:
623 return ctx->Extensions.NV_texture_rectangle
624 ? texUnit->CurrentRect : NULL;
625 case GL_PROXY_TEXTURE_RECTANGLE_NV:
626 return ctx->Extensions.NV_texture_rectangle
627 ? ctx->Texture.ProxyRect : NULL;
628 default:
629 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
630 return NULL;
631 }
632 }
633
634
635 /**
636 * Get the texture image struct which corresponds to target and level
637 * of the given texture unit.
638 *
639 * \param ctx GL context.
640 * \param texUnit texture unit.
641 * \param target texture target.
642 * \param level image level.
643 *
644 * \return pointer to the texture image structure on success, or NULL on failure.
645 *
646 * \sa gl_texture_unit.
647 */
648 struct gl_texture_image *
649 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
650 GLenum target, GLint level)
651 {
652 ASSERT(texUnit);
653 ASSERT(level < MAX_TEXTURE_LEVELS);
654 switch (target) {
655 case GL_TEXTURE_1D:
656 return texUnit->Current1D->Image[0][level];
657 case GL_PROXY_TEXTURE_1D:
658 return ctx->Texture.Proxy1D->Image[0][level];
659 case GL_TEXTURE_2D:
660 return texUnit->Current2D->Image[0][level];
661 case GL_PROXY_TEXTURE_2D:
662 return ctx->Texture.Proxy2D->Image[0][level];
663 case GL_TEXTURE_3D:
664 return texUnit->Current3D->Image[0][level];
665 case GL_PROXY_TEXTURE_3D:
666 return ctx->Texture.Proxy3D->Image[0][level];
667 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
668 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
669 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
670 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
671 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
672 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
673 if (ctx->Extensions.ARB_texture_cube_map) {
674 GLuint face = ((GLuint) target -
675 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
676 return texUnit->CurrentCubeMap->Image[face][level];
677 }
678 else
679 return NULL;
680 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
681 if (ctx->Extensions.ARB_texture_cube_map)
682 return ctx->Texture.ProxyCubeMap->Image[0][level];
683 else
684 return NULL;
685 case GL_TEXTURE_RECTANGLE_NV:
686 if (ctx->Extensions.NV_texture_rectangle) {
687 ASSERT(level == 0);
688 return texUnit->CurrentRect->Image[0][level];
689 }
690 else {
691 return NULL;
692 }
693 case GL_PROXY_TEXTURE_RECTANGLE_NV:
694 if (ctx->Extensions.NV_texture_rectangle) {
695 ASSERT(level == 0);
696 return ctx->Texture.ProxyRect->Image[0][level];
697 }
698 else {
699 return NULL;
700 }
701 default:
702 _mesa_problem(ctx, "bad target in _mesa_select_tex_image()");
703 return NULL;
704 }
705 }
706
707
708 /**
709 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
710 * it and install it. Only return NULL if passed a bad parameter or run
711 * out of memory.
712 */
713 struct gl_texture_image *
714 _mesa_get_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
715 GLenum target, GLint level)
716 {
717 struct gl_texture_image *texImage;
718 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
719 if (!texImage) {
720 struct gl_texture_object *texObj;
721 texImage = ctx->Driver.NewTextureImage(ctx);
722 if (!texImage) {
723 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
724 return NULL;
725 }
726 texObj = _mesa_select_tex_object(ctx, texUnit, target);
727 ASSERT(texObj);
728 _mesa_set_tex_image(texObj, target, level, texImage);
729 }
730 return texImage;
731 }
732
733
734 /**
735 * Return pointer to the specified proxy texture image.
736 * Note that proxy textures are per-context, not per-texture unit.
737 * \return pointer to texture image or NULL if invalid target, invalid
738 * level, or out of memory.
739 */
740 struct gl_texture_image *
741 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
742 {
743 struct gl_texture_image *texImage;
744
745 if (level < 0 )
746 return NULL;
747
748 switch (target) {
749 case GL_PROXY_TEXTURE_1D:
750 if (level >= ctx->Const.MaxTextureLevels)
751 return NULL;
752 texImage = ctx->Texture.Proxy1D->Image[0][level];
753 if (!texImage) {
754 texImage = ctx->Driver.NewTextureImage(ctx);
755 if (!texImage) {
756 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
757 return NULL;
758 }
759 ctx->Texture.Proxy1D->Image[0][level] = texImage;
760 }
761 return texImage;
762 case GL_PROXY_TEXTURE_2D:
763 if (level >= ctx->Const.MaxTextureLevels)
764 return NULL;
765 texImage = ctx->Texture.Proxy2D->Image[0][level];
766 if (!texImage) {
767 texImage = ctx->Driver.NewTextureImage(ctx);
768 if (!texImage) {
769 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
770 return NULL;
771 }
772 ctx->Texture.Proxy2D->Image[0][level] = texImage;
773 }
774 return texImage;
775 case GL_PROXY_TEXTURE_3D:
776 if (level >= ctx->Const.Max3DTextureLevels)
777 return NULL;
778 texImage = ctx->Texture.Proxy3D->Image[0][level];
779 if (!texImage) {
780 texImage = ctx->Driver.NewTextureImage(ctx);
781 if (!texImage) {
782 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
783 return NULL;
784 }
785 ctx->Texture.Proxy3D->Image[0][level] = texImage;
786 }
787 return texImage;
788 case GL_PROXY_TEXTURE_CUBE_MAP:
789 if (level >= ctx->Const.MaxCubeTextureLevels)
790 return NULL;
791 texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
792 if (!texImage) {
793 texImage = ctx->Driver.NewTextureImage(ctx);
794 if (!texImage) {
795 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
796 return NULL;
797 }
798 ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
799 }
800 return texImage;
801 case GL_PROXY_TEXTURE_RECTANGLE_NV:
802 if (level > 0)
803 return NULL;
804 texImage = ctx->Texture.ProxyRect->Image[0][level];
805 if (!texImage) {
806 texImage = ctx->Driver.NewTextureImage(ctx);
807 if (!texImage) {
808 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
809 return NULL;
810 }
811 ctx->Texture.ProxyRect->Image[0][level] = texImage;
812 }
813 return texImage;
814 default:
815 return NULL;
816 }
817 }
818
819
820 /**
821 * Get the maximum number of allowed mipmap levels.
822 *
823 * \param ctx GL context.
824 * \param target texture target.
825 *
826 * \return the maximum number of allowed mipmap levels for the given
827 * texture target, or zero if passed a bad target.
828 *
829 * \sa gl_constants.
830 */
831 GLint
832 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
833 {
834 switch (target) {
835 case GL_TEXTURE_1D:
836 case GL_PROXY_TEXTURE_1D:
837 case GL_TEXTURE_2D:
838 case GL_PROXY_TEXTURE_2D:
839 return ctx->Const.MaxTextureLevels;
840 case GL_TEXTURE_3D:
841 case GL_PROXY_TEXTURE_3D:
842 return ctx->Const.Max3DTextureLevels;
843 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
844 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
845 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
846 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
847 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
848 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
849 case GL_TEXTURE_CUBE_MAP_ARB:
850 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
851 return ctx->Const.MaxCubeTextureLevels;
852 break;
853 case GL_TEXTURE_RECTANGLE_NV:
854 case GL_PROXY_TEXTURE_RECTANGLE_NV:
855 return 1;
856 break;
857 default:
858 return 0; /* bad target */
859 }
860 }
861
862
863
864 #if 000 /* not used anymore */
865 /*
866 * glTexImage[123]D can accept a NULL image pointer. In this case we
867 * create a texture image with unspecified image contents per the OpenGL
868 * spec.
869 */
870 static GLubyte *
871 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
872 {
873 const GLint components = _mesa_components_in_format(format);
874 const GLint numPixels = width * height * depth;
875 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
876
877 #ifdef DEBUG
878 /*
879 * Let's see if anyone finds this. If glTexImage2D() is called with
880 * a NULL image pointer then load the texture image with something
881 * interesting instead of leaving it indeterminate.
882 */
883 if (data) {
884 static const char message[8][32] = {
885 " X X XXXXX XXX X ",
886 " XX XX X X X X X ",
887 " X X X X X X X ",
888 " X X XXXX XXX XXXXX ",
889 " X X X X X X ",
890 " X X X X X X X ",
891 " X X XXXXX XXX X X ",
892 " "
893 };
894
895 GLubyte *imgPtr = data;
896 GLint h, i, j, k;
897 for (h = 0; h < depth; h++) {
898 for (i = 0; i < height; i++) {
899 GLint srcRow = 7 - (i % 8);
900 for (j = 0; j < width; j++) {
901 GLint srcCol = j % 32;
902 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
903 for (k = 0; k < components; k++) {
904 *imgPtr++ = texel;
905 }
906 }
907 }
908 }
909 }
910 #endif
911
912 return data;
913 }
914 #endif
915
916
917
918 /**
919 * Reset the fields of a gl_texture_image struct to zero.
920 *
921 * \param img texture image structure.
922 *
923 * This is called when a proxy texture test fails, we set all the
924 * image members (except DriverData) to zero.
925 * It's also used in glTexImage[123]D as a safeguard to be sure all
926 * required fields get initialized properly by the Driver.TexImage[123]D
927 * functions.
928 */
929 static void
930 clear_teximage_fields(struct gl_texture_image *img)
931 {
932 ASSERT(img);
933 img->Format = 0;
934 img->IntFormat = 0;
935 img->Border = 0;
936 img->Width = 0;
937 img->Height = 0;
938 img->Depth = 0;
939 img->RowStride = 0;
940 img->Width2 = 0;
941 img->Height2 = 0;
942 img->Depth2 = 0;
943 img->WidthLog2 = 0;
944 img->HeightLog2 = 0;
945 img->DepthLog2 = 0;
946 img->Data = NULL;
947 img->TexFormat = &_mesa_null_texformat;
948 img->FetchTexelc = NULL;
949 img->FetchTexelf = NULL;
950 img->IsCompressed = 0;
951 img->CompressedSize = 0;
952 }
953
954
955 /**
956 * Initialize basic fields of the gl_texture_image struct.
957 *
958 * \param ctx GL context.
959 * \param target texture target.
960 * \param img texture image structure to be initialized.
961 * \param width image width.
962 * \param height image height.
963 * \param depth image depth.
964 * \param border image border.
965 * \param internalFormat internal format.
966 *
967 * Fills in the fields of \p img with the given information.
968 * Note: width, height and depth include the border.
969 */
970 void
971 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
972 struct gl_texture_image *img,
973 GLsizei width, GLsizei height, GLsizei depth,
974 GLint border, GLenum internalFormat)
975 {
976 ASSERT(img);
977 img->Format = _mesa_base_tex_format( ctx, internalFormat );
978 ASSERT(img->Format > 0);
979 img->IntFormat = internalFormat;
980 img->Border = border;
981 img->Width = width;
982 img->Height = height;
983 img->Depth = depth;
984 img->RowStride = width;
985 img->WidthLog2 = logbase2(width - 2 * border);
986 if (height == 1) /* 1-D texture */
987 img->HeightLog2 = 0;
988 else
989 img->HeightLog2 = logbase2(height - 2 * border);
990 if (depth == 1) /* 2-D texture */
991 img->DepthLog2 = 0;
992 else
993 img->DepthLog2 = logbase2(depth - 2 * border);
994 img->Width2 = width - 2 * border; /*1 << img->WidthLog2;*/
995 img->Height2 = height - 2 * border; /*1 << img->HeightLog2;*/
996 img->Depth2 = depth - 2 * border; /*1 << img->DepthLog2;*/
997 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
998 img->IsCompressed = is_compressed_format(ctx, internalFormat);
999 if (img->IsCompressed)
1000 img->CompressedSize = ctx->Driver.CompressedTextureSize(ctx, width,
1001 height, depth, internalFormat);
1002 else
1003 img->CompressedSize = 0;
1004
1005 if ((width == 1 || _mesa_bitcount(width - 2 * border) == 1) &&
1006 (height == 1 || _mesa_bitcount(height - 2 * border) == 1) &&
1007 (depth == 1 || _mesa_bitcount(depth - 2 * border) == 1))
1008 img->_IsPowerOfTwo = GL_TRUE;
1009 else
1010 img->_IsPowerOfTwo = GL_FALSE;
1011
1012 /* Compute Width/Height/DepthScale for mipmap lod computation */
1013 if (target == GL_TEXTURE_RECTANGLE_NV) {
1014 /* scale = 1.0 since texture coords directly map to texels */
1015 img->WidthScale = 1.0;
1016 img->HeightScale = 1.0;
1017 img->DepthScale = 1.0;
1018 }
1019 else {
1020 img->WidthScale = (GLfloat) img->Width;
1021 img->HeightScale = (GLfloat) img->Height;
1022 img->DepthScale = (GLfloat) img->Depth;
1023 }
1024 }
1025
1026
1027 /**
1028 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1029 * level, width, height and depth against the ctx->Const limits for textures.
1030 *
1031 * A hardware driver might override this function if, for example, the
1032 * max 3D texture size is 512x512x64 (i.e. not a cube).
1033 *
1034 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1035 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1036 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1037 * \param level as passed to glTexImage
1038 * \param internalFormat as passed to glTexImage
1039 * \param format as passed to glTexImage
1040 * \param type as passed to glTexImage
1041 * \param width as passed to glTexImage
1042 * \param height as passed to glTexImage
1043 * \param depth as passed to glTexImage
1044 * \param border as passed to glTexImage
1045 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1046 */
1047 GLboolean
1048 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1049 GLint internalFormat, GLenum format, GLenum type,
1050 GLint width, GLint height, GLint depth, GLint border)
1051 {
1052 GLint maxSize;
1053
1054 (void) internalFormat;
1055 (void) format;
1056 (void) type;
1057
1058 switch (target) {
1059 case GL_PROXY_TEXTURE_1D:
1060 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1061 if (width < 2 * border || width > 2 + maxSize ||
1062 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1063 _mesa_bitcount(width - 2 * border) != 1) ||
1064 level >= ctx->Const.MaxTextureLevels) {
1065 /* bad width or level */
1066 return GL_FALSE;
1067 }
1068 return GL_TRUE;
1069 case GL_PROXY_TEXTURE_2D:
1070 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1071 if (width < 2 * border || width > 2 + maxSize ||
1072 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1073 _mesa_bitcount(width - 2 * border) != 1) ||
1074 height < 2 * border || height > 2 + maxSize ||
1075 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1076 _mesa_bitcount(height - 2 * border) != 1) ||
1077 level >= ctx->Const.MaxTextureLevels) {
1078 /* bad width or height or level */
1079 return GL_FALSE;
1080 }
1081 return GL_TRUE;
1082 case GL_PROXY_TEXTURE_3D:
1083 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1084 if (width < 2 * border || width > 2 + maxSize ||
1085 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1086 _mesa_bitcount(width - 2 * border) != 1) ||
1087 height < 2 * border || height > 2 + maxSize ||
1088 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1089 _mesa_bitcount(height - 2 * border) != 1) ||
1090 depth < 2 * border || depth > 2 + maxSize ||
1091 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1092 _mesa_bitcount(depth - 2 * border) != 1) ||
1093 level >= ctx->Const.Max3DTextureLevels) {
1094 /* bad width or height or depth or level */
1095 return GL_FALSE;
1096 }
1097 return GL_TRUE;
1098 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1099 if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
1100 height < 1 || height > ctx->Const.MaxTextureRectSize ||
1101 level != 0) {
1102 /* bad width or height or level */
1103 return GL_FALSE;
1104 }
1105 return GL_TRUE;
1106 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1107 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1108 if (width < 2 * border || width > 2 + maxSize ||
1109 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1110 _mesa_bitcount(width - 2 * border) != 1) ||
1111 height < 2 * border || height > 2 + maxSize ||
1112 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1113 _mesa_bitcount(height - 2 * border) != 1) ||
1114 level >= ctx->Const.MaxCubeTextureLevels) {
1115 /* bad width or height */
1116 return GL_FALSE;
1117 }
1118 return GL_TRUE;
1119 default:
1120 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1121 return GL_FALSE;
1122 }
1123 }
1124
1125
1126 /**
1127 * Test the glTexImage[123]D() parameters for errors.
1128 *
1129 * \param ctx GL context.
1130 * \param target texture target given by the user.
1131 * \param level image level given by the user.
1132 * \param internalFormat internal format given by the user.
1133 * \param format pixel data format given by the user.
1134 * \param type pixel data type given by the user.
1135 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1136 * \param width image width given by the user.
1137 * \param height image height given by the user.
1138 * \param depth image depth given by the user.
1139 * \param border image border given by the user.
1140 *
1141 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1142 *
1143 * Verifies each of the parameters against the constants specified in
1144 * __GLcontextRec::Const and the supported extensions, and according to the
1145 * OpenGL specification.
1146 */
1147 static GLboolean
1148 texture_error_check( GLcontext *ctx, GLenum target,
1149 GLint level, GLint internalFormat,
1150 GLenum format, GLenum type,
1151 GLuint dimensions,
1152 GLint width, GLint height,
1153 GLint depth, GLint border )
1154 {
1155 const GLboolean isProxy = is_proxy_target(target);
1156 GLboolean sizeOK;
1157
1158 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1159 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1160 if (!isProxy) {
1161 _mesa_error(ctx, GL_INVALID_VALUE,
1162 "glTexImage%dD(level=%d)", dimensions, level);
1163 }
1164 return GL_TRUE;
1165 }
1166
1167 /* Check border */
1168 if (border < 0 || border > 1 ||
1169 ((target == GL_TEXTURE_RECTANGLE_NV ||
1170 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1171 if (!isProxy) {
1172 _mesa_error(ctx, GL_INVALID_VALUE,
1173 "glTexImage%dD(border=%d)", dimensions, border);
1174 }
1175 return GL_TRUE;
1176 }
1177
1178 if (width < 0 || height < 0 || depth < 0) {
1179 if (!isProxy) {
1180 _mesa_error(ctx, GL_INVALID_VALUE,
1181 "glTexImage%dD(width, height or depth < 0)", dimensions);
1182 }
1183 return GL_TRUE;
1184 }
1185
1186 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1187 * level, width, height and depth.
1188 */
1189 if (dimensions == 1) {
1190 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1191 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1192 level, internalFormat,
1193 format, type,
1194 width, 1, 1, border);
1195 }
1196 else {
1197 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1198 return GL_TRUE;
1199 }
1200 }
1201 else if (dimensions == 2) {
1202 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1203 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1204 level, internalFormat,
1205 format, type,
1206 width, height, 1, border);
1207 }
1208 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1209 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1210 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1211 if (!ctx->Extensions.ARB_texture_cube_map) {
1212 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1213 return GL_TRUE;
1214 }
1215 sizeOK = (width == height) &&
1216 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1217 level, internalFormat, format, type,
1218 width, height, 1, border);
1219 }
1220 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1221 target == GL_TEXTURE_RECTANGLE_NV) {
1222 if (!ctx->Extensions.NV_texture_rectangle) {
1223 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1224 return GL_TRUE;
1225 }
1226 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1227 GL_PROXY_TEXTURE_RECTANGLE_NV,
1228 level, internalFormat,
1229 format, type,
1230 width, height, 1, border);
1231 }
1232 else {
1233 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1234 return GL_TRUE;
1235 }
1236 }
1237 else if (dimensions == 3) {
1238 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1239 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_3D,
1240 level, internalFormat,
1241 format, type,
1242 width, height, depth, border);
1243 }
1244 else {
1245 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1246 return GL_TRUE;
1247 }
1248 }
1249 else {
1250 _mesa_problem( ctx, "bad dims in texture_error_check" );
1251 return GL_TRUE;
1252 }
1253
1254 if (!sizeOK) {
1255 if (!isProxy) {
1256 _mesa_error(ctx, GL_INVALID_VALUE,
1257 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1258 dimensions, level, width, height, depth);
1259 }
1260 return GL_TRUE;
1261 }
1262
1263 /* Check internalFormat */
1264 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1265 if (!isProxy) {
1266 _mesa_error(ctx, GL_INVALID_VALUE,
1267 "glTexImage%dD(internalFormat=0x%x)",
1268 dimensions, internalFormat);
1269 }
1270 return GL_TRUE;
1271 }
1272
1273 /* Check incoming image format and type */
1274 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1275 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1276 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1277 */
1278 if (!isProxy) {
1279 _mesa_error(ctx, GL_INVALID_OPERATION,
1280 "glTexImage%dD(format or type)", dimensions);
1281 }
1282 return GL_TRUE;
1283 }
1284
1285 if (format == GL_YCBCR_MESA || internalFormat == GL_YCBCR_MESA) {
1286 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1287 if (format != GL_YCBCR_MESA ||
1288 internalFormat != GL_YCBCR_MESA ||
1289 (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1290 type != GL_UNSIGNED_SHORT_8_8_REV_MESA)) {
1291 char message[100];
1292 _mesa_sprintf(message,
1293 "glTexImage%d(format/type/internalFormat YCBCR mismatch",
1294 dimensions);
1295 _mesa_error(ctx, GL_INVALID_ENUM, message);
1296 return GL_TRUE; /* error */
1297 }
1298 if (target != GL_TEXTURE_2D &&
1299 target != GL_PROXY_TEXTURE_2D &&
1300 target != GL_TEXTURE_RECTANGLE_NV &&
1301 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1302 if (!isProxy)
1303 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1304 return GL_TRUE;
1305 }
1306 if (border != 0) {
1307 if (!isProxy) {
1308 char message[100];
1309 _mesa_sprintf(message,
1310 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1311 dimensions, border);
1312 _mesa_error(ctx, GL_INVALID_VALUE, message);
1313 }
1314 return GL_TRUE;
1315 }
1316 }
1317
1318 if (is_compressed_format(ctx, internalFormat)) {
1319 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1320 /* OK */
1321 }
1322 else if (ctx->Extensions.ARB_texture_cube_map &&
1323 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1324 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1325 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1326 /* OK */
1327 }
1328 else {
1329 if (!isProxy) {
1330 _mesa_error(ctx, GL_INVALID_ENUM,
1331 "glTexImage%d(target)", dimensions);
1332 return GL_TRUE;
1333 }
1334 }
1335 if (border != 0) {
1336 if (!isProxy) {
1337 _mesa_error(ctx, GL_INVALID_OPERATION,
1338 "glTexImage%D(border!=0)", dimensions);
1339 }
1340 return GL_TRUE;
1341 }
1342 }
1343
1344 /* if we get here, the parameters are OK */
1345 return GL_FALSE;
1346 }
1347
1348
1349 /**
1350 * Test glTexSubImage[123]D() parameters for errors.
1351 *
1352 * \param ctx GL context.
1353 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1354 * \param target texture target given by the user.
1355 * \param level image level given by the user.
1356 * \param xoffset sub-image x offset given by the user.
1357 * \param yoffset sub-image y offset given by the user.
1358 * \param zoffset sub-image z offset given by the user.
1359 * \param format pixel data format given by the user.
1360 * \param type pixel data type given by the user.
1361 * \param width image width given by the user.
1362 * \param height image height given by the user.
1363 * \param depth image depth given by the user.
1364 *
1365 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1366 *
1367 * Verifies each of the parameters against the constants specified in
1368 * __GLcontextRec::Const and the supported extensions, and according to the
1369 * OpenGL specification.
1370 */
1371 static GLboolean
1372 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1373 GLenum target, GLint level,
1374 GLint xoffset, GLint yoffset, GLint zoffset,
1375 GLint width, GLint height, GLint depth,
1376 GLenum format, GLenum type )
1377 {
1378 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1379 struct gl_texture_image *destTex;
1380
1381 /* Check target */
1382 if (dimensions == 1) {
1383 if (target != GL_TEXTURE_1D) {
1384 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1385 return GL_TRUE;
1386 }
1387 }
1388 else if (dimensions == 2) {
1389 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1390 target <=GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1391 if (!ctx->Extensions.ARB_texture_cube_map) {
1392 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1393 return GL_TRUE;
1394 }
1395 }
1396 else if (ctx->Extensions.NV_texture_rectangle &&
1397 target == GL_TEXTURE_RECTANGLE_NV) {
1398 if (!ctx->Extensions.NV_texture_rectangle) {
1399 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1400 return GL_TRUE;
1401 }
1402 }
1403 else if (target != GL_TEXTURE_2D) {
1404 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1405 return GL_TRUE;
1406 }
1407 }
1408 else if (dimensions == 3) {
1409 if (target != GL_TEXTURE_3D) {
1410 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1411 return GL_TRUE;
1412 }
1413 }
1414 else {
1415 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1416 return GL_TRUE;
1417 }
1418
1419 /* Basic level check */
1420 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1421 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1422 return GL_TRUE;
1423 }
1424
1425 if (width < 0) {
1426 _mesa_error(ctx, GL_INVALID_VALUE,
1427 "glTexSubImage%dD(width=%d)", dimensions, width);
1428 return GL_TRUE;
1429 }
1430 if (height < 0 && dimensions > 1) {
1431 _mesa_error(ctx, GL_INVALID_VALUE,
1432 "glTexSubImage%dD(height=%d)", dimensions, height);
1433 return GL_TRUE;
1434 }
1435 if (depth < 0 && dimensions > 2) {
1436 _mesa_error(ctx, GL_INVALID_VALUE,
1437 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1438 return GL_TRUE;
1439 }
1440
1441 destTex = _mesa_select_tex_image(ctx, texUnit, target, level);
1442
1443 if (!destTex) {
1444 /* undefined image level */
1445 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1446 return GL_TRUE;
1447 }
1448
1449 if (xoffset < -((GLint)destTex->Border)) {
1450 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1451 dimensions);
1452 return GL_TRUE;
1453 }
1454 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1455 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1456 dimensions);
1457 return GL_TRUE;
1458 }
1459 if (dimensions > 1) {
1460 if (yoffset < -((GLint)destTex->Border)) {
1461 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1462 dimensions);
1463 return GL_TRUE;
1464 }
1465 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1466 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1467 dimensions);
1468 return GL_TRUE;
1469 }
1470 }
1471 if (dimensions > 2) {
1472 if (zoffset < -((GLint)destTex->Border)) {
1473 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1474 return GL_TRUE;
1475 }
1476 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1477 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1478 return GL_TRUE;
1479 }
1480 }
1481
1482 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1483 _mesa_error(ctx, GL_INVALID_ENUM,
1484 "glTexSubImage%dD(format or type)", dimensions);
1485 return GL_TRUE;
1486 }
1487
1488 if (destTex->IsCompressed) {
1489 const struct gl_texture_unit *texUnit;
1490 const struct gl_texture_image *texImage;
1491 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1492 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1493
1494 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1495 /* OK */
1496 }
1497 else if (ctx->Extensions.ARB_texture_cube_map &&
1498 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1499 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1500 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1501 /* OK */
1502 }
1503 else {
1504 _mesa_error(ctx, GL_INVALID_ENUM,
1505 "glTexSubImage%D(target)", dimensions);
1506 return GL_TRUE;
1507 }
1508 /* offset must be multiple of 4 */
1509 if ((xoffset & 3) || (yoffset & 3)) {
1510 _mesa_error(ctx, GL_INVALID_OPERATION,
1511 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1512 return GL_TRUE;
1513 }
1514 /* size must be multiple of 4 or equal to whole texture size */
1515 if ((width & 3) && (GLuint) width != texImage->Width) {
1516 _mesa_error(ctx, GL_INVALID_OPERATION,
1517 "glTexSubImage%D(width)", dimensions);
1518 return GL_TRUE;
1519 }
1520 if ((height & 3) && (GLuint) height != texImage->Height) {
1521 _mesa_error(ctx, GL_INVALID_OPERATION,
1522 "glTexSubImage%D(width)", dimensions);
1523 return GL_TRUE;
1524 }
1525 }
1526
1527 return GL_FALSE;
1528 }
1529
1530
1531 /**
1532 * Test glCopyTexImage[12]D() parameters for errors.
1533 *
1534 * \param ctx GL context.
1535 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1536 * \param target texture target given by the user.
1537 * \param level image level given by the user.
1538 * \param internalFormat internal format given by the user.
1539 * \param width image width given by the user.
1540 * \param height image height given by the user.
1541 * \param depth image depth given by the user.
1542 * \param border texture border.
1543 *
1544 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1545 *
1546 * Verifies each of the parameters against the constants specified in
1547 * __GLcontextRec::Const and the supported extensions, and according to the
1548 * OpenGL specification.
1549 */
1550 static GLboolean
1551 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1552 GLenum target, GLint level, GLint internalFormat,
1553 GLint width, GLint height, GLint border )
1554 {
1555 GLenum format, type;
1556 GLboolean sizeOK;
1557
1558 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1559 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1560 _mesa_error(ctx, GL_INVALID_VALUE,
1561 "glCopyTexImage%dD(level=%d)", dimensions, level);
1562 return GL_TRUE;
1563 }
1564
1565 /* Check border */
1566 if (border < 0 || border > 1 ||
1567 ((target == GL_TEXTURE_RECTANGLE_NV ||
1568 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1569 return GL_TRUE;
1570 }
1571
1572 /* The format and type aren't really significant here, but we need to pass
1573 * something to TestProxyTexImage().
1574 */
1575 format = _mesa_base_tex_format(ctx, internalFormat);
1576 type = GL_FLOAT;
1577
1578 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1579 * level, width, height and depth.
1580 */
1581 if (dimensions == 1) {
1582 if (target == GL_TEXTURE_1D) {
1583 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1584 level, internalFormat,
1585 format, type,
1586 width, 1, 1, border);
1587 }
1588 else {
1589 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1590 return GL_TRUE;
1591 }
1592 }
1593 else if (dimensions == 2) {
1594 if (target == GL_TEXTURE_2D) {
1595 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1596 level, internalFormat,
1597 format, type,
1598 width, height, 1, border);
1599 }
1600 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1601 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1602 if (!ctx->Extensions.ARB_texture_cube_map) {
1603 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1604 return GL_TRUE;
1605 }
1606 sizeOK = (width == height) &&
1607 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1608 level, internalFormat, format, type,
1609 width, height, 1, border);
1610 }
1611 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1612 if (!ctx->Extensions.NV_texture_rectangle) {
1613 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1614 return GL_TRUE;
1615 }
1616 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1617 GL_PROXY_TEXTURE_RECTANGLE_NV,
1618 level, internalFormat,
1619 format, type,
1620 width, height, 1, border);
1621 }
1622 else {
1623 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1624 return GL_TRUE;
1625 }
1626 }
1627 else {
1628 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1629 return GL_TRUE;
1630 }
1631
1632 if (!sizeOK) {
1633 if (dimensions == 1) {
1634 _mesa_error(ctx, GL_INVALID_VALUE,
1635 "glCopyTexImage1D(width=%d)", width);
1636 }
1637 else {
1638 ASSERT(dimensions == 2);
1639 _mesa_error(ctx, GL_INVALID_VALUE,
1640 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1641 }
1642 return GL_TRUE;
1643 }
1644
1645 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1646 _mesa_error(ctx, GL_INVALID_VALUE,
1647 "glCopyTexImage%dD(internalFormat)", dimensions);
1648 return GL_TRUE;
1649 }
1650
1651 if (is_compressed_format(ctx, internalFormat)) {
1652 if (target != GL_TEXTURE_2D) {
1653 _mesa_error(ctx, GL_INVALID_ENUM,
1654 "glCopyTexImage%d(target)", dimensions);
1655 return GL_TRUE;
1656 }
1657 if (border != 0) {
1658 _mesa_error(ctx, GL_INVALID_OPERATION,
1659 "glCopyTexImage%D(border!=0)", dimensions);
1660 return GL_TRUE;
1661 }
1662 }
1663
1664 /* if we get here, the parameters are OK */
1665 return GL_FALSE;
1666 }
1667
1668
1669 /**
1670 * Test glCopyTexImage[12]D() parameters for errors.
1671 *
1672 * \param ctx GL context.
1673 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1674 * \param target texture target given by the user.
1675 * \param level image level given by the user.
1676 * \param xoffset sub-image x offset given by the user.
1677 * \param yoffset sub-image y offset given by the user.
1678 * \param zoffset sub-image z offset given by the user.
1679 * \param width image width given by the user.
1680 * \param height image height given by the user.
1681 *
1682 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1683 *
1684 * Verifies each of the parameters against the constants specified in
1685 * __GLcontextRec::Const and the supported extensions, and according to the
1686 * OpenGL specification.
1687 */
1688 static GLboolean
1689 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
1690 GLenum target, GLint level,
1691 GLint xoffset, GLint yoffset, GLint zoffset,
1692 GLsizei width, GLsizei height )
1693 {
1694 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1695 struct gl_texture_image *teximage;
1696
1697 /* Check target */
1698 if (dimensions == 1) {
1699 if (target != GL_TEXTURE_1D) {
1700 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
1701 return GL_TRUE;
1702 }
1703 }
1704 else if (dimensions == 2) {
1705 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1706 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1707 if (!ctx->Extensions.ARB_texture_cube_map) {
1708 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1709 return GL_TRUE;
1710 }
1711 }
1712 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1713 if (!ctx->Extensions.NV_texture_rectangle) {
1714 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1715 return GL_TRUE;
1716 }
1717 }
1718 else if (target != GL_TEXTURE_2D) {
1719 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1720 return GL_TRUE;
1721 }
1722 }
1723 else if (dimensions == 3) {
1724 if (target != GL_TEXTURE_3D) {
1725 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
1726 return GL_TRUE;
1727 }
1728 }
1729
1730 /* Check level */
1731 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1732 _mesa_error(ctx, GL_INVALID_VALUE,
1733 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1734 return GL_TRUE;
1735 }
1736
1737 /* Check size */
1738 if (width < 0) {
1739 _mesa_error(ctx, GL_INVALID_VALUE,
1740 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1741 return GL_TRUE;
1742 }
1743 if (dimensions > 1 && height < 0) {
1744 _mesa_error(ctx, GL_INVALID_VALUE,
1745 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1746 return GL_TRUE;
1747 }
1748
1749 teximage = _mesa_select_tex_image(ctx, texUnit, target, level);
1750 if (!teximage) {
1751 _mesa_error(ctx, GL_INVALID_OPERATION,
1752 "glCopyTexSubImage%dD(undefined texture level: %d)",
1753 dimensions, level);
1754 return GL_TRUE;
1755 }
1756
1757 if (xoffset < -((GLint)teximage->Border)) {
1758 _mesa_error(ctx, GL_INVALID_VALUE,
1759 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
1760 return GL_TRUE;
1761 }
1762 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
1763 _mesa_error(ctx, GL_INVALID_VALUE,
1764 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1765 return GL_TRUE;
1766 }
1767 if (dimensions > 1) {
1768 if (yoffset < -((GLint)teximage->Border)) {
1769 _mesa_error(ctx, GL_INVALID_VALUE,
1770 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
1771 return GL_TRUE;
1772 }
1773 /* NOTE: we're adding the border here, not subtracting! */
1774 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
1775 _mesa_error(ctx, GL_INVALID_VALUE,
1776 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1777 return GL_TRUE;
1778 }
1779 }
1780
1781 if (dimensions > 2) {
1782 if (zoffset < -((GLint)teximage->Border)) {
1783 _mesa_error(ctx, GL_INVALID_VALUE,
1784 "glCopyTexSubImage%dD(zoffset)", dimensions);
1785 return GL_TRUE;
1786 }
1787 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
1788 _mesa_error(ctx, GL_INVALID_VALUE,
1789 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1790 return GL_TRUE;
1791 }
1792 }
1793
1794 if (teximage->IsCompressed) {
1795 if (target != GL_TEXTURE_2D) {
1796 _mesa_error(ctx, GL_INVALID_ENUM,
1797 "glCopyTexSubImage%d(target)", dimensions);
1798 return GL_TRUE;
1799 }
1800 /* offset must be multiple of 4 */
1801 if ((xoffset & 3) || (yoffset & 3)) {
1802 _mesa_error(ctx, GL_INVALID_VALUE,
1803 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
1804 return GL_TRUE;
1805 }
1806 /* size must be multiple of 4 */
1807 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
1808 _mesa_error(ctx, GL_INVALID_VALUE,
1809 "glCopyTexSubImage%D(width)", dimensions);
1810 return GL_TRUE;
1811 }
1812 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
1813 _mesa_error(ctx, GL_INVALID_VALUE,
1814 "glCopyTexSubImage%D(height)", dimensions);
1815 return GL_TRUE;
1816 }
1817 }
1818
1819 if (teximage->IntFormat == GL_YCBCR_MESA) {
1820 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
1821 return GL_TRUE;
1822 }
1823
1824 /* if we get here, the parameters are OK */
1825 return GL_FALSE;
1826 }
1827
1828
1829 /**
1830 * Get texture image. Called by glGetTexImage.
1831 *
1832 * \param target texture target.
1833 * \param level image level.
1834 * \param format pixel data format for returned image.
1835 * \param type pixel data type for returned image.
1836 * \param pixels returned pixel data.
1837 */
1838 void GLAPIENTRY
1839 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
1840 GLenum type, GLvoid *pixels )
1841 {
1842 const struct gl_texture_unit *texUnit;
1843 const struct gl_texture_object *texObj;
1844 const struct gl_texture_image *texImage;
1845 GLint maxLevels = 0;
1846 GET_CURRENT_CONTEXT(ctx);
1847 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1848
1849 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
1850 texObj = _mesa_select_tex_object(ctx, texUnit, target);
1851 if (!texObj || is_proxy_target(target)) {
1852 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
1853 return;
1854 }
1855
1856 maxLevels = _mesa_max_texture_levels(ctx, target);
1857 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
1858
1859 if (level < 0 || level >= maxLevels) {
1860 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
1861 return;
1862 }
1863
1864 if (_mesa_sizeof_packed_type(type) <= 0) {
1865 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
1866 return;
1867 }
1868
1869 if (_mesa_components_in_format(format) <= 0 ||
1870 format == GL_STENCIL_INDEX) {
1871 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
1872 return;
1873 }
1874
1875 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
1876 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1877 }
1878
1879 if (!ctx->Extensions.SGIX_depth_texture && is_depth_format(format)) {
1880 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1881 }
1882
1883 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
1884 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1885 }
1886
1887 if (!pixels)
1888 return;
1889
1890 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1891 if (!texImage) {
1892 /* invalid mipmap level, not an error */
1893 return;
1894 }
1895
1896 if (!texImage->Data) {
1897 /* no image data, not an error */
1898 return;
1899 }
1900
1901 /* Make sure the requested image format is compatible with the
1902 * texture's format.
1903 */
1904 if (is_color_format(format)
1905 && !is_color_format(texImage->TexFormat->BaseFormat)) {
1906 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1907 return;
1908 }
1909 else if (is_index_format(format)
1910 && !is_index_format(texImage->TexFormat->BaseFormat)) {
1911 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1912 return;
1913 }
1914 else if (is_depth_format(format)
1915 && !is_depth_format(texImage->TexFormat->BaseFormat)) {
1916 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1917 return;
1918 }
1919 else if (is_ycbcr_format(format)
1920 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
1921 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1922 return;
1923 }
1924
1925
1926
1927 {
1928 const GLint width = texImage->Width;
1929 const GLint height = texImage->Height;
1930 const GLint depth = texImage->Depth;
1931 GLint img, row;
1932 for (img = 0; img < depth; img++) {
1933 for (row = 0; row < height; row++) {
1934 /* compute destination address in client memory */
1935 GLvoid *dest = _mesa_image_address( &ctx->Pack, pixels,
1936 width, height, format, type,
1937 img, row, 0);
1938 assert(dest);
1939
1940 if (format == GL_COLOR_INDEX) {
1941 GLuint indexRow[MAX_WIDTH];
1942 GLint col;
1943 for (col = 0; col < width; col++) {
1944 GLchan indx;
1945 (*texImage->FetchTexelc)(texImage, col, row, img, &indx);
1946 indexRow[col] = indx;
1947 }
1948 _mesa_pack_index_span(ctx, width, type, dest,
1949 indexRow, &ctx->Pack,
1950 0 /* no image transfer */);
1951 }
1952 else if (format == GL_DEPTH_COMPONENT) {
1953 GLfloat depthRow[MAX_WIDTH];
1954 GLint col;
1955 for (col = 0; col < width; col++) {
1956 (*texImage->FetchTexelf)(texImage, col, row, img,
1957 (GLvoid *) &depthRow[col]);
1958 }
1959 _mesa_pack_depth_span(ctx, width, dest, type,
1960 depthRow, &ctx->Pack);
1961 }
1962 else if (format == GL_YCBCR_MESA) {
1963 /* No pixel transfer */
1964 const GLint rowstride = texImage->RowStride;
1965 MEMCPY(dest,
1966 (const GLushort *) texImage->Data + row * rowstride,
1967 width * sizeof(GLushort));
1968 /* check for byte swapping */
1969 if ((texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR
1970 && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) ||
1971 (texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV
1972 && type == GL_UNSIGNED_SHORT_8_8_MESA)) {
1973 if (!ctx->Pack.SwapBytes)
1974 _mesa_swap2((GLushort *) dest, width);
1975 }
1976 else if (ctx->Pack.SwapBytes) {
1977 _mesa_swap2((GLushort *) dest, width);
1978 }
1979 }
1980 else {
1981 /* general case: convert row to RGBA format */
1982 GLfloat rgba[MAX_WIDTH][4];
1983 GLint col;
1984 for (col = 0; col < width; col++) {
1985 (*texImage->FetchTexelf)(texImage, col, row, img, rgba[col]);
1986 }
1987 _mesa_pack_rgba_span_float(ctx, width,
1988 (const GLfloat (*)[4]) rgba,
1989 format, type, dest, &ctx->Pack,
1990 0 /* no image transfer */);
1991 } /* format */
1992 } /* row */
1993 } /* img */
1994 }
1995 }
1996
1997
1998
1999 /*
2000 * Called from the API. Note that width includes the border.
2001 */
2002 void GLAPIENTRY
2003 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2004 GLsizei width, GLint border, GLenum format,
2005 GLenum type, const GLvoid *pixels )
2006 {
2007 GLsizei postConvWidth = width;
2008 GET_CURRENT_CONTEXT(ctx);
2009 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2010
2011 if (is_color_format(internalFormat)) {
2012 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2013 }
2014
2015 if (target == GL_TEXTURE_1D) {
2016 struct gl_texture_unit *texUnit;
2017 struct gl_texture_object *texObj;
2018 struct gl_texture_image *texImage;
2019
2020 if (texture_error_check(ctx, target, level, internalFormat,
2021 format, type, 1, postConvWidth, 1, 1, border)) {
2022 return; /* error was recorded */
2023 }
2024
2025 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2026 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2027 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2028
2029 if (!texImage) {
2030 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2031 return;
2032 }
2033 else if (texImage->Data && !texImage->IsClientData) {
2034 /* free the old texture data */
2035 MESA_PBUFFER_FREE(texImage->Data);
2036 }
2037 texImage->Data = NULL;
2038 clear_teximage_fields(texImage); /* not really needed, but helpful */
2039 _mesa_init_teximage_fields(ctx, target, texImage,
2040 postConvWidth, 1, 1,
2041 border, internalFormat);
2042
2043 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2044 _mesa_update_state(ctx);
2045
2046 ASSERT(ctx->Driver.TexImage1D);
2047
2048 /* Give the texture to the driver! <pixels> may be null! */
2049 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2050 width, border, format, type, pixels,
2051 &ctx->Unpack, texObj, texImage);
2052
2053 ASSERT(texImage->TexFormat);
2054
2055 /* If driver didn't explicitly set this, use the defaults */
2056 if (!texImage->FetchTexelc)
2057 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2058 if (!texImage->FetchTexelf)
2059 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2060 ASSERT(texImage->FetchTexelc);
2061 ASSERT(texImage->FetchTexelf);
2062
2063 /* state update */
2064 texObj->Complete = GL_FALSE;
2065 ctx->NewState |= _NEW_TEXTURE;
2066 }
2067 else if (target == GL_PROXY_TEXTURE_1D) {
2068 /* Proxy texture: check for errors and update proxy state */
2069 struct gl_texture_image *texImage;
2070 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2071 if (texture_error_check(ctx, target, level, internalFormat,
2072 format, type, 1, postConvWidth, 1, 1, border)) {
2073 /* when error, clear all proxy texture image parameters */
2074 if (texImage)
2075 clear_teximage_fields(texImage);
2076 }
2077 else {
2078 /* no error, set the tex image parameters */
2079 ASSERT(texImage);
2080 _mesa_init_teximage_fields(ctx, target, texImage,
2081 postConvWidth, 1, 1,
2082 border, internalFormat);
2083 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2084 internalFormat, format, type);
2085 }
2086 }
2087 else {
2088 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2089 return;
2090 }
2091 }
2092
2093
2094 void GLAPIENTRY
2095 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2096 GLsizei width, GLsizei height, GLint border,
2097 GLenum format, GLenum type,
2098 const GLvoid *pixels )
2099 {
2100 GLsizei postConvWidth = width, postConvHeight = height;
2101 GET_CURRENT_CONTEXT(ctx);
2102 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2103
2104 if (is_color_format(internalFormat)) {
2105 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2106 &postConvHeight);
2107 }
2108
2109 if (target == GL_TEXTURE_2D ||
2110 (ctx->Extensions.ARB_texture_cube_map &&
2111 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2112 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2113 (ctx->Extensions.NV_texture_rectangle &&
2114 target == GL_TEXTURE_RECTANGLE_NV)) {
2115 /* non-proxy target */
2116 struct gl_texture_unit *texUnit;
2117 struct gl_texture_object *texObj;
2118 struct gl_texture_image *texImage;
2119
2120 if (texture_error_check(ctx, target, level, internalFormat,
2121 format, type, 2, postConvWidth, postConvHeight,
2122 1, border)) {
2123 return; /* error was recorded */
2124 }
2125
2126 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2127 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2128 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2129 if (!texImage) {
2130 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2131 return;
2132 }
2133 else if (texImage->Data && !texImage->IsClientData) {
2134 /* free the old texture data */
2135 MESA_PBUFFER_FREE(texImage->Data);
2136 }
2137 texImage->Data = NULL;
2138 clear_teximage_fields(texImage); /* not really needed, but helpful */
2139 _mesa_init_teximage_fields(ctx, target, texImage,
2140 postConvWidth, postConvHeight, 1,
2141 border, internalFormat);
2142
2143 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2144 _mesa_update_state(ctx);
2145
2146 ASSERT(ctx->Driver.TexImage2D);
2147
2148 /* Give the texture to the driver! <pixels> may be null! */
2149 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2150 width, height, border, format, type, pixels,
2151 &ctx->Unpack, texObj, texImage);
2152
2153 ASSERT(texImage->TexFormat);
2154
2155 /* If driver didn't explicitly set these, use the defaults */
2156 if (!texImage->FetchTexelc)
2157 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2158 if (!texImage->FetchTexelf)
2159 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2160 ASSERT(texImage->FetchTexelc);
2161 ASSERT(texImage->FetchTexelf);
2162
2163 /* state update */
2164 texObj->Complete = GL_FALSE;
2165 ctx->NewState |= _NEW_TEXTURE;
2166 }
2167 else if (target == GL_PROXY_TEXTURE_2D ||
2168 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2169 ctx->Extensions.ARB_texture_cube_map) ||
2170 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2171 ctx->Extensions.NV_texture_rectangle)) {
2172 /* Proxy texture: check for errors and update proxy state */
2173 struct gl_texture_image *texImage;
2174 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2175 if (texture_error_check(ctx, target, level, internalFormat,
2176 format, type, 2, postConvWidth, postConvHeight,
2177 1, border)) {
2178 /* when error, clear all proxy texture image parameters */
2179 if (texImage)
2180 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2181 }
2182 else {
2183 /* no error, set the tex image parameters */
2184 _mesa_init_teximage_fields(ctx, target, texImage,
2185 postConvWidth, postConvHeight, 1,
2186 border, internalFormat);
2187 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2188 internalFormat, format, type);
2189 }
2190 }
2191 else {
2192 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2193 return;
2194 }
2195 }
2196
2197
2198 /*
2199 * Called by the API or display list executor.
2200 * Note that width and height include the border.
2201 */
2202 void GLAPIENTRY
2203 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2204 GLsizei width, GLsizei height, GLsizei depth,
2205 GLint border, GLenum format, GLenum type,
2206 const GLvoid *pixels )
2207 {
2208 GET_CURRENT_CONTEXT(ctx);
2209 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2210
2211 if (target == GL_TEXTURE_3D) {
2212 struct gl_texture_unit *texUnit;
2213 struct gl_texture_object *texObj;
2214 struct gl_texture_image *texImage;
2215
2216 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2217 format, type, 3, width, height, depth, border)) {
2218 return; /* error was recorded */
2219 }
2220
2221 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2222 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2223 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2224 if (!texImage) {
2225 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2226 return;
2227 }
2228 else if (texImage->Data && !texImage->IsClientData) {
2229 MESA_PBUFFER_FREE(texImage->Data);
2230 }
2231 texImage->Data = NULL;
2232 clear_teximage_fields(texImage); /* not really needed, but helpful */
2233 _mesa_init_teximage_fields(ctx, target, texImage,
2234 width, height, depth,
2235 border, internalFormat);
2236
2237 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2238 _mesa_update_state(ctx);
2239
2240 ASSERT(ctx->Driver.TexImage3D);
2241
2242 /* Give the texture to the driver! <pixels> may be null! */
2243 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2244 width, height, depth, border, format, type,
2245 pixels, &ctx->Unpack, texObj, texImage);
2246
2247 ASSERT(texImage->TexFormat);
2248
2249 /* If driver didn't explicitly set these, use the defaults */
2250 if (!texImage->FetchTexelc)
2251 texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
2252 if (!texImage->FetchTexelf)
2253 texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
2254 ASSERT(texImage->FetchTexelc);
2255 ASSERT(texImage->FetchTexelf);
2256
2257 /* state update */
2258 texObj->Complete = GL_FALSE;
2259 ctx->NewState |= _NEW_TEXTURE;
2260 }
2261 else if (target == GL_PROXY_TEXTURE_3D) {
2262 /* Proxy texture: check for errors and update proxy state */
2263 struct gl_texture_image *texImage;
2264 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2265 if (texture_error_check(ctx, target, level, internalFormat,
2266 format, type, 3, width, height, depth, border)) {
2267 /* when error, clear all proxy texture image parameters */
2268 if (texImage)
2269 clear_teximage_fields(texImage);
2270 }
2271 else {
2272 /* no error, set the tex image parameters */
2273 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2274 border, internalFormat);
2275 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2276 internalFormat, format, type);
2277 }
2278 }
2279 else {
2280 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2281 return;
2282 }
2283 }
2284
2285
2286 void GLAPIENTRY
2287 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2288 GLsizei width, GLsizei height, GLsizei depth,
2289 GLint border, GLenum format, GLenum type,
2290 const GLvoid *pixels )
2291 {
2292 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2293 depth, border, format, type, pixels);
2294 }
2295
2296
2297
2298 void GLAPIENTRY
2299 _mesa_TexSubImage1D( GLenum target, GLint level,
2300 GLint xoffset, GLsizei width,
2301 GLenum format, GLenum type,
2302 const GLvoid *pixels )
2303 {
2304 GLsizei postConvWidth = width;
2305 struct gl_texture_unit *texUnit;
2306 struct gl_texture_object *texObj;
2307 struct gl_texture_image *texImage;
2308 GET_CURRENT_CONTEXT(ctx);
2309 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2310
2311 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2312 _mesa_update_state(ctx);
2313
2314 /* XXX should test internal format */
2315 if (is_color_format(format)) {
2316 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2317 }
2318
2319 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2320 postConvWidth, 1, 1, format, type)) {
2321 return; /* error was detected */
2322 }
2323
2324 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2325 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2326 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2327 assert(texImage);
2328
2329 if (width == 0 || !pixels)
2330 return; /* no-op, not an error */
2331
2332 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2333 xoffset += texImage->Border;
2334
2335 ASSERT(ctx->Driver.TexSubImage1D);
2336 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2337 format, type, pixels, &ctx->Unpack,
2338 texObj, texImage);
2339 ctx->NewState |= _NEW_TEXTURE;
2340 }
2341
2342
2343 void GLAPIENTRY
2344 _mesa_TexSubImage2D( GLenum target, GLint level,
2345 GLint xoffset, GLint yoffset,
2346 GLsizei width, GLsizei height,
2347 GLenum format, GLenum type,
2348 const GLvoid *pixels )
2349 {
2350 GLsizei postConvWidth = width, postConvHeight = height;
2351 struct gl_texture_unit *texUnit;
2352 struct gl_texture_object *texObj;
2353 struct gl_texture_image *texImage;
2354 GET_CURRENT_CONTEXT(ctx);
2355 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2356
2357 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2358 _mesa_update_state(ctx);
2359
2360 /* XXX should test internal format */
2361 if (is_color_format(format)) {
2362 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2363 &postConvHeight);
2364 }
2365
2366 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2367 postConvWidth, postConvHeight, 1, format, type)) {
2368 return; /* error was detected */
2369 }
2370
2371 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2372 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2373 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2374 assert(texImage);
2375
2376 if (width == 0 || height == 0 || !pixels)
2377 return; /* no-op, not an error */
2378
2379 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2380 xoffset += texImage->Border;
2381 yoffset += texImage->Border;
2382
2383 ASSERT(ctx->Driver.TexSubImage2D);
2384 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2385 width, height, format, type, pixels,
2386 &ctx->Unpack, texObj, texImage);
2387 ctx->NewState |= _NEW_TEXTURE;
2388 }
2389
2390
2391
2392 void GLAPIENTRY
2393 _mesa_TexSubImage3D( GLenum target, GLint level,
2394 GLint xoffset, GLint yoffset, GLint zoffset,
2395 GLsizei width, GLsizei height, GLsizei depth,
2396 GLenum format, GLenum type,
2397 const GLvoid *pixels )
2398 {
2399 struct gl_texture_unit *texUnit;
2400 struct gl_texture_object *texObj;
2401 struct gl_texture_image *texImage;
2402 GET_CURRENT_CONTEXT(ctx);
2403 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2404
2405 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2406 _mesa_update_state(ctx);
2407
2408 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2409 width, height, depth, format, type)) {
2410 return; /* error was detected */
2411 }
2412
2413 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2414 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2415 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2416 assert(texImage);
2417
2418 if (width == 0 || height == 0 || height == 0 || !pixels)
2419 return; /* no-op, not an error */
2420
2421 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2422 xoffset += texImage->Border;
2423 yoffset += texImage->Border;
2424 zoffset += texImage->Border;
2425
2426 ASSERT(ctx->Driver.TexSubImage3D);
2427 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2428 xoffset, yoffset, zoffset,
2429 width, height, depth,
2430 format, type, pixels,
2431 &ctx->Unpack, texObj, texImage );
2432 ctx->NewState |= _NEW_TEXTURE;
2433 }
2434
2435
2436
2437 void GLAPIENTRY
2438 _mesa_CopyTexImage1D( GLenum target, GLint level,
2439 GLenum internalFormat,
2440 GLint x, GLint y,
2441 GLsizei width, GLint border )
2442 {
2443 struct gl_texture_unit *texUnit;
2444 struct gl_texture_object *texObj;
2445 struct gl_texture_image *texImage;
2446 GLsizei postConvWidth = width;
2447 GET_CURRENT_CONTEXT(ctx);
2448 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2449
2450 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2451 _mesa_update_state(ctx);
2452
2453 if (is_color_format(internalFormat)) {
2454 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2455 }
2456
2457 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2458 postConvWidth, 1, border))
2459 return;
2460
2461 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2462 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2463 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2464 if (!texImage) {
2465 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2466 return;
2467 }
2468 else if (texImage->Data && !texImage->IsClientData) {
2469 /* free the old texture data */
2470 MESA_PBUFFER_FREE(texImage->Data);
2471 }
2472 texImage->Data = NULL;
2473
2474 clear_teximage_fields(texImage); /* not really needed, but helpful */
2475 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2476 border, internalFormat);
2477
2478
2479 ASSERT(ctx->Driver.CopyTexImage1D);
2480 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2481 x, y, width, border);
2482
2483 ASSERT(texImage->TexFormat);
2484
2485 /* If driver didn't explicitly set these, use the defaults */
2486 if (!texImage->FetchTexelc)
2487 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2488 if (!texImage->FetchTexelf)
2489 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2490 ASSERT(texImage->FetchTexelc);
2491 ASSERT(texImage->FetchTexelf);
2492
2493 /* state update */
2494 texObj->Complete = GL_FALSE;
2495 ctx->NewState |= _NEW_TEXTURE;
2496 }
2497
2498
2499
2500 void GLAPIENTRY
2501 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2502 GLint x, GLint y, GLsizei width, GLsizei height,
2503 GLint border )
2504 {
2505 struct gl_texture_unit *texUnit;
2506 struct gl_texture_object *texObj;
2507 struct gl_texture_image *texImage;
2508 GLsizei postConvWidth = width, postConvHeight = height;
2509 GET_CURRENT_CONTEXT(ctx);
2510 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2511
2512 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2513 _mesa_update_state(ctx);
2514
2515 if (is_color_format(internalFormat)) {
2516 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2517 &postConvHeight);
2518 }
2519
2520 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2521 postConvWidth, postConvHeight, border))
2522 return;
2523
2524 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2525 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2526 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2527 if (!texImage) {
2528 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2529 return;
2530 }
2531 else if (texImage->Data && !texImage->IsClientData) {
2532 /* free the old texture data */
2533 MESA_PBUFFER_FREE(texImage->Data);
2534 }
2535 texImage->Data = NULL;
2536
2537 clear_teximage_fields(texImage); /* not really needed, but helpful */
2538 _mesa_init_teximage_fields(ctx, target, texImage,
2539 postConvWidth, postConvHeight, 1,
2540 border, internalFormat);
2541
2542 ASSERT(ctx->Driver.CopyTexImage2D);
2543 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
2544 x, y, width, height, border);
2545
2546 ASSERT(texImage->TexFormat);
2547
2548 /* If driver didn't explicitly set these, use the defaults */
2549 if (!texImage->FetchTexelc)
2550 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2551 if (!texImage->FetchTexelf)
2552 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2553 ASSERT(texImage->FetchTexelc);
2554 ASSERT(texImage->FetchTexelf);
2555
2556 /* state update */
2557 texObj->Complete = GL_FALSE;
2558 ctx->NewState |= _NEW_TEXTURE;
2559 }
2560
2561
2562
2563 void GLAPIENTRY
2564 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2565 GLint xoffset, GLint x, GLint y, GLsizei width )
2566 {
2567 struct gl_texture_unit *texUnit;
2568 struct gl_texture_image *texImage;
2569 GLsizei postConvWidth = width;
2570 GET_CURRENT_CONTEXT(ctx);
2571 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2572
2573 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2574 _mesa_update_state(ctx);
2575
2576 /* XXX should test internal format */
2577 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2578
2579 if (copytexsubimage_error_check(ctx, 1, target, level,
2580 xoffset, 0, 0, postConvWidth, 1))
2581 return;
2582
2583 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2584 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2585 ASSERT(texImage);
2586
2587 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2588 xoffset += texImage->Border;
2589
2590 ASSERT(ctx->Driver.CopyTexSubImage1D);
2591 (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
2592 ctx->NewState |= _NEW_TEXTURE;
2593 }
2594
2595
2596
2597 void GLAPIENTRY
2598 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2599 GLint xoffset, GLint yoffset,
2600 GLint x, GLint y, GLsizei width, GLsizei height )
2601 {
2602 struct gl_texture_unit *texUnit;
2603 struct gl_texture_image *texImage;
2604 GLsizei postConvWidth = width, postConvHeight = height;
2605 GET_CURRENT_CONTEXT(ctx);
2606 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2607
2608 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2609 _mesa_update_state(ctx);
2610
2611 /* XXX should test internal format */
2612 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2613
2614 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2615 postConvWidth, postConvHeight))
2616 return;
2617
2618 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2619 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2620 ASSERT(texImage);
2621
2622 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2623 xoffset += texImage->Border;
2624 yoffset += texImage->Border;
2625
2626 ASSERT(ctx->Driver.CopyTexSubImage2D);
2627 (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
2628 xoffset, yoffset, x, y, width, height);
2629 ctx->NewState |= _NEW_TEXTURE;
2630 }
2631
2632
2633
2634 void GLAPIENTRY
2635 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2636 GLint xoffset, GLint yoffset, GLint zoffset,
2637 GLint x, GLint y, GLsizei width, GLsizei height )
2638 {
2639 struct gl_texture_unit *texUnit;
2640 struct gl_texture_image *texImage;
2641 GLsizei postConvWidth = width, postConvHeight = height;
2642 GET_CURRENT_CONTEXT(ctx);
2643 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2644
2645 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2646 _mesa_update_state(ctx);
2647
2648 /* XXX should test internal format */
2649 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2650
2651 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
2652 zoffset, postConvWidth, postConvHeight))
2653 return;
2654
2655 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2656 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2657 ASSERT(texImage);
2658
2659 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2660 xoffset += texImage->Border;
2661 yoffset += texImage->Border;
2662 zoffset += texImage->Border;
2663
2664 ASSERT(ctx->Driver.CopyTexSubImage3D);
2665 (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
2666 xoffset, yoffset, zoffset,
2667 x, y, width, height);
2668 ctx->NewState |= _NEW_TEXTURE;
2669 }
2670
2671
2672
2673
2674 /**********************************************************************/
2675 /****** Compressed Textures ******/
2676 /**********************************************************************/
2677
2678
2679 /**
2680 * Error checking for glCompressedTexImage[123]D().
2681 * \return error code or GL_NO_ERROR.
2682 */
2683 static GLenum
2684 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
2685 GLenum target, GLint level,
2686 GLenum internalFormat, GLsizei width,
2687 GLsizei height, GLsizei depth, GLint border,
2688 GLsizei imageSize)
2689 {
2690 GLint expectedSize, maxLevels = 0, maxTextureSize;
2691
2692 if (dimensions == 1) {
2693 /* 1D compressed textures not allowed */
2694 return GL_INVALID_ENUM;
2695 }
2696 else if (dimensions == 2) {
2697 if (target == GL_PROXY_TEXTURE_2D) {
2698 maxLevels = ctx->Const.MaxTextureLevels;
2699 }
2700 else if (target == GL_TEXTURE_2D) {
2701 maxLevels = ctx->Const.MaxTextureLevels;
2702 }
2703 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2704 if (!ctx->Extensions.ARB_texture_cube_map)
2705 return GL_INVALID_ENUM; /*target*/
2706 maxLevels = ctx->Const.MaxCubeTextureLevels;
2707 }
2708 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2709 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2710 if (!ctx->Extensions.ARB_texture_cube_map)
2711 return GL_INVALID_ENUM; /*target*/
2712 maxLevels = ctx->Const.MaxCubeTextureLevels;
2713 }
2714 else {
2715 return GL_INVALID_ENUM; /*target*/
2716 }
2717 }
2718 else if (dimensions == 3) {
2719 /* 3D compressed textures not allowed */
2720 return GL_INVALID_ENUM;
2721 }
2722
2723 maxTextureSize = 1 << (maxLevels - 1);
2724
2725 if (!is_compressed_format(ctx, internalFormat))
2726 return GL_INVALID_ENUM;
2727
2728 if (border != 0)
2729 return GL_INVALID_VALUE;
2730
2731 /*
2732 * XXX We should probably use the proxy texture error check function here.
2733 */
2734 if (width < 1 || width > maxTextureSize ||
2735 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(width) < 0))
2736 return GL_INVALID_VALUE;
2737
2738 if ((height < 1 || height > maxTextureSize ||
2739 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(height) < 0))
2740 && dimensions > 1)
2741 return GL_INVALID_VALUE;
2742
2743 if ((depth < 1 || depth > maxTextureSize ||
2744 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(depth) < 0))
2745 && dimensions > 2)
2746 return GL_INVALID_VALUE;
2747
2748 /* For cube map, width must equal height */
2749 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2750 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
2751 return GL_INVALID_VALUE;
2752
2753 if (level < 0 || level >= maxLevels)
2754 return GL_INVALID_VALUE;
2755
2756 expectedSize = ctx->Driver.CompressedTextureSize(ctx, width, height, depth,
2757 internalFormat);
2758 if (expectedSize != imageSize)
2759 return GL_INVALID_VALUE;
2760
2761 return GL_NO_ERROR;
2762 }
2763
2764
2765 /**
2766 * Error checking for glCompressedTexSubImage[123]D().
2767 * \return error code or GL_NO_ERROR.
2768 */
2769 static GLenum
2770 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
2771 GLenum target, GLint level,
2772 GLint xoffset, GLint yoffset, GLint zoffset,
2773 GLsizei width, GLsizei height, GLsizei depth,
2774 GLenum format, GLsizei imageSize)
2775 {
2776 GLint expectedSize, maxLevels = 0, maxTextureSize;
2777
2778 if (dimensions == 1) {
2779 /* 1D compressed textures not allowed */
2780 return GL_INVALID_ENUM;
2781 }
2782 else if (dimensions == 2) {
2783 if (target == GL_PROXY_TEXTURE_2D) {
2784 maxLevels = ctx->Const.MaxTextureLevels;
2785 }
2786 else if (target == GL_TEXTURE_2D) {
2787 maxLevels = ctx->Const.MaxTextureLevels;
2788 }
2789 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2790 if (!ctx->Extensions.ARB_texture_cube_map)
2791 return GL_INVALID_ENUM; /*target*/
2792 maxLevels = ctx->Const.MaxCubeTextureLevels;
2793 }
2794 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2795 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2796 if (!ctx->Extensions.ARB_texture_cube_map)
2797 return GL_INVALID_ENUM; /*target*/
2798 maxLevels = ctx->Const.MaxCubeTextureLevels;
2799 }
2800 else {
2801 return GL_INVALID_ENUM; /*target*/
2802 }
2803 }
2804 else if (dimensions == 3) {
2805 /* 3D compressed textures not allowed */
2806 return GL_INVALID_ENUM;
2807 }
2808
2809 maxTextureSize = 1 << (maxLevels - 1);
2810
2811 if (!is_compressed_format(ctx, format))
2812 return GL_INVALID_ENUM;
2813
2814 if (width < 1 || width > maxTextureSize)
2815 return GL_INVALID_VALUE;
2816
2817 if ((height < 1 || height > maxTextureSize)
2818 && dimensions > 1)
2819 return GL_INVALID_VALUE;
2820
2821 if (level < 0 || level >= maxLevels)
2822 return GL_INVALID_VALUE;
2823
2824 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
2825 return GL_INVALID_VALUE;
2826
2827 if ((width & 3) != 0 && width != 2 && width != 1)
2828 return GL_INVALID_VALUE;
2829
2830 if ((height & 3) != 0 && height != 2 && height != 1)
2831 return GL_INVALID_VALUE;
2832
2833 expectedSize = ctx->Driver.CompressedTextureSize(ctx, width, height, depth,
2834 format);
2835 if (expectedSize != imageSize)
2836 return GL_INVALID_VALUE;
2837
2838 return GL_NO_ERROR;
2839 }
2840
2841
2842
2843 void GLAPIENTRY
2844 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
2845 GLenum internalFormat, GLsizei width,
2846 GLint border, GLsizei imageSize,
2847 const GLvoid *data)
2848 {
2849 GET_CURRENT_CONTEXT(ctx);
2850 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2851
2852 if (target == GL_TEXTURE_1D) {
2853 struct gl_texture_unit *texUnit;
2854 struct gl_texture_object *texObj;
2855 struct gl_texture_image *texImage;
2856 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2857 internalFormat, width, 1, 1, border, imageSize);
2858 if (error) {
2859 _mesa_error(ctx, error, "glCompressedTexImage1D");
2860 return;
2861 }
2862
2863 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2864 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2865 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2866 if (!texImage) {
2867 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
2868 return;
2869 }
2870 else if (texImage->Data && !texImage->IsClientData) {
2871 MESA_PBUFFER_FREE(texImage->Data);
2872 }
2873 texImage->Data = NULL;
2874
2875 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2876 border, internalFormat);
2877
2878 ASSERT(ctx->Driver.CompressedTexImage1D);
2879 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
2880 internalFormat, width, border,
2881 imageSize, data,
2882 texObj, texImage);
2883
2884 /* state update */
2885 texObj->Complete = GL_FALSE;
2886 ctx->NewState |= _NEW_TEXTURE;
2887 }
2888 else if (target == GL_PROXY_TEXTURE_1D) {
2889 /* Proxy texture: check for errors and update proxy state */
2890 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2891 internalFormat, width, 1, 1, border, imageSize);
2892 if (!error) {
2893 ASSERT(ctx->Driver.TestProxyTexImage);
2894 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
2895 internalFormat, GL_NONE, GL_NONE,
2896 width, 1, 1, border);
2897 }
2898 if (error) {
2899 /* if error, clear all proxy texture image parameters */
2900 struct gl_texture_image *texImage;
2901 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2902 if (texImage)
2903 clear_teximage_fields(texImage);
2904 }
2905 else {
2906 /* store the teximage parameters */
2907 struct gl_texture_unit *texUnit;
2908 struct gl_texture_image *texImage;
2909 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2910 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2911 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2912 border, internalFormat);
2913 }
2914 }
2915 else {
2916 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
2917 return;
2918 }
2919 }
2920
2921
2922 void GLAPIENTRY
2923 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
2924 GLenum internalFormat, GLsizei width,
2925 GLsizei height, GLint border, GLsizei imageSize,
2926 const GLvoid *data)
2927 {
2928 GET_CURRENT_CONTEXT(ctx);
2929 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2930
2931 if (target == GL_TEXTURE_2D ||
2932 (ctx->Extensions.ARB_texture_cube_map &&
2933 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2934 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
2935 struct gl_texture_unit *texUnit;
2936 struct gl_texture_object *texObj;
2937 struct gl_texture_image *texImage;
2938 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2939 internalFormat, width, height, 1, border, imageSize);
2940 if (error) {
2941 _mesa_error(ctx, error, "glCompressedTexImage2D");
2942 return;
2943 }
2944
2945 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2946 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2947 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2948 if (!texImage) {
2949 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
2950 return;
2951 }
2952 else if (texImage->Data && !texImage->IsClientData) {
2953 MESA_PBUFFER_FREE(texImage->Data);
2954 }
2955 texImage->Data = NULL;
2956
2957 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2958 border, internalFormat);
2959
2960 ASSERT(ctx->Driver.CompressedTexImage2D);
2961 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
2962 internalFormat, width, height,
2963 border, imageSize, data,
2964 texObj, texImage);
2965
2966 /* state update */
2967 texObj->Complete = GL_FALSE;
2968 ctx->NewState |= _NEW_TEXTURE;
2969 }
2970 else if (target == GL_PROXY_TEXTURE_2D ||
2971 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2972 ctx->Extensions.ARB_texture_cube_map)) {
2973 /* Proxy texture: check for errors and update proxy state */
2974 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2975 internalFormat, width, height, 1, border, imageSize);
2976 if (!error) {
2977 ASSERT(ctx->Driver.TestProxyTexImage);
2978 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
2979 internalFormat, GL_NONE, GL_NONE,
2980 width, height, 1, border);
2981 }
2982 if (error) {
2983 /* if error, clear all proxy texture image parameters */
2984 struct gl_texture_image *texImage;
2985 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2986 if (texImage)
2987 clear_teximage_fields(texImage);
2988 }
2989 else {
2990 /* store the teximage parameters */
2991 struct gl_texture_unit *texUnit;
2992 struct gl_texture_image *texImage;
2993 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2994 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2995 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2996 border, internalFormat);
2997 }
2998 }
2999 else {
3000 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3001 return;
3002 }
3003 }
3004
3005
3006 void GLAPIENTRY
3007 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3008 GLenum internalFormat, GLsizei width,
3009 GLsizei height, GLsizei depth, GLint border,
3010 GLsizei imageSize, const GLvoid *data)
3011 {
3012 GET_CURRENT_CONTEXT(ctx);
3013 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3014
3015 if (target == GL_TEXTURE_3D) {
3016 struct gl_texture_unit *texUnit;
3017 struct gl_texture_object *texObj;
3018 struct gl_texture_image *texImage;
3019 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3020 internalFormat, width, height, depth, border, imageSize);
3021 if (error) {
3022 _mesa_error(ctx, error, "glCompressedTexImage3D");
3023 return;
3024 }
3025
3026 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3027 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3028 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
3029 if (!texImage) {
3030 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3031 return;
3032 }
3033 else if (texImage->Data && !texImage->IsClientData) {
3034 MESA_PBUFFER_FREE(texImage->Data);
3035 }
3036 texImage->Data = NULL;
3037
3038 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3039 border, internalFormat);
3040
3041 ASSERT(ctx->Driver.CompressedTexImage3D);
3042 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3043 internalFormat,
3044 width, height, depth,
3045 border, imageSize, data,
3046 texObj, texImage);
3047
3048 /* state update */
3049 texObj->Complete = GL_FALSE;
3050 ctx->NewState |= _NEW_TEXTURE;
3051 }
3052 else if (target == GL_PROXY_TEXTURE_3D) {
3053 /* Proxy texture: check for errors and update proxy state */
3054 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3055 internalFormat, width, height, depth, border, imageSize);
3056 if (!error) {
3057 ASSERT(ctx->Driver.TestProxyTexImage);
3058 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3059 internalFormat, GL_NONE, GL_NONE,
3060 width, height, depth, border);
3061 }
3062 if (error) {
3063 /* if error, clear all proxy texture image parameters */
3064 struct gl_texture_image *texImage;
3065 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3066 if (texImage)
3067 clear_teximage_fields(texImage);
3068 }
3069 else {
3070 /* store the teximage parameters */
3071 struct gl_texture_unit *texUnit;
3072 struct gl_texture_image *texImage;
3073 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3074 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3075 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3076 depth, border, internalFormat);
3077 }
3078 }
3079 else {
3080 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3081 return;
3082 }
3083 }
3084
3085
3086 void GLAPIENTRY
3087 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3088 GLsizei width, GLenum format,
3089 GLsizei imageSize, const GLvoid *data)
3090 {
3091 struct gl_texture_unit *texUnit;
3092 struct gl_texture_object *texObj;
3093 struct gl_texture_image *texImage;
3094 GLenum error;
3095 GET_CURRENT_CONTEXT(ctx);
3096 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3097
3098 error = compressed_subtexture_error_check(ctx, 1, target, level,
3099 xoffset, 0, 0, width, 1, 1, format, imageSize);
3100 if (error) {
3101 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3102 return;
3103 }
3104
3105 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3106 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3107 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3108 assert(texImage);
3109
3110 if ((GLint) format != texImage->IntFormat) {
3111 _mesa_error(ctx, GL_INVALID_OPERATION,
3112 "glCompressedTexSubImage1D(format)");
3113 return;
3114 }
3115
3116 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3117 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3118 return;
3119 }
3120
3121 if (width == 0 || !data)
3122 return; /* no-op, not an error */
3123
3124 if (ctx->Driver.CompressedTexSubImage1D) {
3125 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3126 xoffset, width,
3127 format, imageSize, data,
3128 texObj, texImage);
3129 }
3130 ctx->NewState |= _NEW_TEXTURE;
3131 }
3132
3133
3134 void GLAPIENTRY
3135 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3136 GLint yoffset, GLsizei width, GLsizei height,
3137 GLenum format, GLsizei imageSize,
3138 const GLvoid *data)
3139 {
3140 struct gl_texture_unit *texUnit;
3141 struct gl_texture_object *texObj;
3142 struct gl_texture_image *texImage;
3143 GLenum error;
3144 GET_CURRENT_CONTEXT(ctx);
3145 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3146
3147 error = compressed_subtexture_error_check(ctx, 2, target, level,
3148 xoffset, yoffset, 0, width, height, 1, format, imageSize);
3149 if (error) {
3150 /* XXX proxy target? */
3151 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3152 return;
3153 }
3154
3155 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3156 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3157 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3158 assert(texImage);
3159
3160 if ((GLint) format != texImage->IntFormat) {
3161 _mesa_error(ctx, GL_INVALID_OPERATION,
3162 "glCompressedTexSubImage2D(format)");
3163 return;
3164 }
3165
3166 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3167 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3168 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3169 return;
3170 }
3171
3172 if (width == 0 || height == 0 || !data)
3173 return; /* no-op, not an error */
3174
3175 if (ctx->Driver.CompressedTexSubImage2D) {
3176 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3177 xoffset, yoffset, width, height,
3178 format, imageSize, data,
3179 texObj, texImage);
3180 }
3181 ctx->NewState |= _NEW_TEXTURE;
3182 }
3183
3184
3185 void GLAPIENTRY
3186 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3187 GLint yoffset, GLint zoffset, GLsizei width,
3188 GLsizei height, GLsizei depth, GLenum format,
3189 GLsizei imageSize, const GLvoid *data)
3190 {
3191 struct gl_texture_unit *texUnit;
3192 struct gl_texture_object *texObj;
3193 struct gl_texture_image *texImage;
3194 GLenum error;
3195 GET_CURRENT_CONTEXT(ctx);
3196 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3197
3198 error = compressed_subtexture_error_check(ctx, 3, target, level,
3199 xoffset, yoffset, zoffset, width, height, depth, format, imageSize);
3200 if (error) {
3201 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3202 return;
3203 }
3204
3205 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3206 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3207 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3208 assert(texImage);
3209
3210 if ((GLint) format != texImage->IntFormat) {
3211 _mesa_error(ctx, GL_INVALID_OPERATION,
3212 "glCompressedTexSubImage3D(format)");
3213 return;
3214 }
3215
3216 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3217 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3218 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3219 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3220 return;
3221 }
3222
3223 if (width == 0 || height == 0 || depth == 0 || !data)
3224 return; /* no-op, not an error */
3225
3226 if (ctx->Driver.CompressedTexSubImage3D) {
3227 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3228 xoffset, yoffset, zoffset,
3229 width, height, depth,
3230 format, imageSize, data,
3231 texObj, texImage);
3232 }
3233 ctx->NewState |= _NEW_TEXTURE;
3234 }
3235
3236
3237 void GLAPIENTRY
3238 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3239 {
3240 const struct gl_texture_unit *texUnit;
3241 const struct gl_texture_object *texObj;
3242 struct gl_texture_image *texImage;
3243 GLint maxLevels;
3244 GET_CURRENT_CONTEXT(ctx);
3245 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3246
3247 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3248 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3249 if (!texObj) {
3250 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3251 return;
3252 }
3253
3254 maxLevels = _mesa_max_texture_levels(ctx, target);
3255 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3256
3257 if (level < 0 || level >= maxLevels) {
3258 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3259 return;
3260 }
3261
3262 if (is_proxy_target(target)) {
3263 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3264 return;
3265 }
3266
3267 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3268 if (!texImage) {
3269 /* probably invalid mipmap level */
3270 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3271 return;
3272 }
3273
3274 if (!texImage->IsCompressed) {
3275 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
3276 return;
3277 }
3278
3279 if (!img)
3280 return;
3281
3282 /* just memcpy, no pixelstore or pixel transfer */
3283 MEMCPY(img, texImage->Data, texImage->CompressedSize);
3284 }