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fix for-loop in _mesa_GetDouble to avoid out of bounds memory read
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.3
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 "bufferobj.h"
40 #include "context.h"
41 #include "convolve.h"
42 #include "image.h"
43 #include "imports.h"
44 #include "macros.h"
45 #include "state.h"
46 #include "texcompress.h"
47 #include "texformat.h"
48 #include "teximage.h"
49 #include "texstate.h"
50 #include "texstore.h"
51 #include "mtypes.h"
52
53
54 #if 0
55 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
56 {
57 #if CHAN_TYPE == GL_FLOAT
58 _mesa_problem(NULL, "PrintTexture doesn't support float channels");
59 #else
60 GLuint i, j, c;
61 const GLchan *data = (const GLchan *) img->Data;
62
63 if (!data) {
64 _mesa_printf("No texture data\n");
65 return;
66 }
67
68 switch (img->Format) {
69 case GL_ALPHA:
70 case GL_LUMINANCE:
71 case GL_INTENSITY:
72 case GL_COLOR_INDEX:
73 c = 1;
74 break;
75 case GL_LUMINANCE_ALPHA:
76 c = 2;
77 break;
78 case GL_RGB:
79 c = 3;
80 break;
81 case GL_RGBA:
82 c = 4;
83 break;
84 default:
85 _mesa_problem(NULL, "error in PrintTexture\n");
86 return;
87 }
88
89 for (i = 0; i < img->Height; i++) {
90 for (j = 0; j < img->Width; j++) {
91 if (c==1)
92 _mesa_printf("%02x ", data[0]);
93 else if (c==2)
94 _mesa_printf("%02x%02x ", data[0], data[1]);
95 else if (c==3)
96 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
97 else if (c==4)
98 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
99 data += (img->RowStride - img->Width) * c;
100 }
101 _mesa_printf("\n");
102 }
103 #endif
104 }
105 #endif
106
107
108 /*
109 * Compute floor(log_base_2(n)).
110 * If n < 0 return -1.
111 */
112 static int
113 logbase2( int n )
114 {
115 GLint i = 1;
116 GLint log2 = 0;
117
118 if (n < 0)
119 return -1;
120
121 if (n == 0)
122 return 0;
123
124 while ( n > i ) {
125 i *= 2;
126 log2++;
127 }
128 if (i != n) {
129 return log2 - 1;
130 }
131 else {
132 return log2;
133 }
134 }
135
136
137
138 /**
139 * Return the simple base format for a given internal texture format.
140 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
141 *
142 * \param ctx GL context.
143 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
144 *
145 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
146 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
147 *
148 * This is the format which is used during texture application (i.e. the
149 * texture format and env mode determine the arithmetic used.
150 */
151 GLint
152 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
153 {
154 switch (internalFormat) {
155 case GL_ALPHA:
156 case GL_ALPHA4:
157 case GL_ALPHA8:
158 case GL_ALPHA12:
159 case GL_ALPHA16:
160 return GL_ALPHA;
161 case 1:
162 case GL_LUMINANCE:
163 case GL_LUMINANCE4:
164 case GL_LUMINANCE8:
165 case GL_LUMINANCE12:
166 case GL_LUMINANCE16:
167 return GL_LUMINANCE;
168 case 2:
169 case GL_LUMINANCE_ALPHA:
170 case GL_LUMINANCE4_ALPHA4:
171 case GL_LUMINANCE6_ALPHA2:
172 case GL_LUMINANCE8_ALPHA8:
173 case GL_LUMINANCE12_ALPHA4:
174 case GL_LUMINANCE12_ALPHA12:
175 case GL_LUMINANCE16_ALPHA16:
176 return GL_LUMINANCE_ALPHA;
177 case GL_INTENSITY:
178 case GL_INTENSITY4:
179 case GL_INTENSITY8:
180 case GL_INTENSITY12:
181 case GL_INTENSITY16:
182 return GL_INTENSITY;
183 case 3:
184 case GL_RGB:
185 case GL_R3_G3_B2:
186 case GL_RGB4:
187 case GL_RGB5:
188 case GL_RGB8:
189 case GL_RGB10:
190 case GL_RGB12:
191 case GL_RGB16:
192 return GL_RGB;
193 case 4:
194 case GL_RGBA:
195 case GL_RGBA2:
196 case GL_RGBA4:
197 case GL_RGB5_A1:
198 case GL_RGBA8:
199 case GL_RGB10_A2:
200 case GL_RGBA12:
201 case GL_RGBA16:
202 return GL_RGBA;
203 default:
204 ; /* fallthrough */
205 }
206
207 if (ctx->Extensions.EXT_paletted_texture) {
208 switch (internalFormat) {
209 case GL_COLOR_INDEX:
210 case GL_COLOR_INDEX1_EXT:
211 case GL_COLOR_INDEX2_EXT:
212 case GL_COLOR_INDEX4_EXT:
213 case GL_COLOR_INDEX8_EXT:
214 case GL_COLOR_INDEX12_EXT:
215 case GL_COLOR_INDEX16_EXT:
216 return GL_COLOR_INDEX;
217 default:
218 ; /* fallthrough */
219 }
220 }
221
222 if (ctx->Extensions.SGIX_depth_texture) {
223 switch (internalFormat) {
224 case GL_DEPTH_COMPONENT:
225 case GL_DEPTH_COMPONENT16_SGIX:
226 case GL_DEPTH_COMPONENT24_SGIX:
227 case GL_DEPTH_COMPONENT32_SGIX:
228 return GL_DEPTH_COMPONENT;
229 default:
230 ; /* fallthrough */
231 }
232 }
233
234 if (ctx->Extensions.ARB_texture_compression) {
235 switch (internalFormat) {
236 case GL_COMPRESSED_ALPHA:
237 return GL_ALPHA;
238 case GL_COMPRESSED_LUMINANCE:
239 return GL_LUMINANCE;
240 case GL_COMPRESSED_LUMINANCE_ALPHA:
241 return GL_LUMINANCE_ALPHA;
242 case GL_COMPRESSED_INTENSITY:
243 return GL_INTENSITY;
244 case GL_COMPRESSED_RGB:
245 return GL_RGB;
246 case GL_COMPRESSED_RGBA:
247 return GL_RGBA;
248 default:
249 ; /* fallthrough */
250 }
251 }
252
253 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
254 switch (internalFormat) {
255 case GL_COMPRESSED_RGB_FXT1_3DFX:
256 return GL_RGB;
257 case GL_COMPRESSED_RGBA_FXT1_3DFX:
258 return GL_RGBA;
259 default:
260 ; /* fallthrough */
261 }
262 }
263
264 if (ctx->Extensions.EXT_texture_compression_s3tc) {
265 switch (internalFormat) {
266 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
267 return GL_RGB;
268 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
269 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
270 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
271 return GL_RGBA;
272 default:
273 ; /* fallthrough */
274 }
275 }
276
277 if (ctx->Extensions.S3_s3tc) {
278 switch (internalFormat) {
279 case GL_RGB_S3TC:
280 case GL_RGB4_S3TC:
281 return GL_RGB;
282 case GL_RGBA_S3TC:
283 case GL_RGBA4_S3TC:
284 return GL_RGBA;
285 default:
286 ; /* fallthrough */
287 }
288 }
289
290 if (ctx->Extensions.MESA_ycbcr_texture) {
291 if (internalFormat == GL_YCBCR_MESA)
292 return GL_YCBCR_MESA;
293 }
294
295 if (ctx->Extensions.ARB_texture_float) {
296 switch (internalFormat) {
297 case GL_ALPHA16F_ARB:
298 case GL_ALPHA32F_ARB:
299 return GL_ALPHA;
300 case GL_RGBA16F_ARB:
301 case GL_RGBA32F_ARB:
302 return GL_RGBA;
303 case GL_RGB16F_ARB:
304 case GL_RGB32F_ARB:
305 return GL_RGB;
306 case GL_INTENSITY16F_ARB:
307 case GL_INTENSITY32F_ARB:
308 return GL_INTENSITY;
309 case GL_LUMINANCE16F_ARB:
310 case GL_LUMINANCE32F_ARB:
311 return GL_LUMINANCE;
312 case GL_LUMINANCE_ALPHA16F_ARB:
313 case GL_LUMINANCE_ALPHA32F_ARB:
314 return GL_LUMINANCE_ALPHA;
315 default:
316 ; /* fallthrough */
317 }
318 }
319
320 return -1; /* error */
321 }
322
323
324 /**
325 * Test if the given image format is a color/RGBA format (i.e., not color
326 * index, depth, stencil, etc).
327 * \param format the image format value (may by an internal texture format)
328 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
329 */
330 static GLboolean
331 is_color_format(GLenum format)
332 {
333 switch (format) {
334 case GL_RED:
335 case GL_GREEN:
336 case GL_BLUE:
337 case GL_ALPHA:
338 case GL_ALPHA4:
339 case GL_ALPHA8:
340 case GL_ALPHA12:
341 case GL_ALPHA16:
342 case 1:
343 case GL_LUMINANCE:
344 case GL_LUMINANCE4:
345 case GL_LUMINANCE8:
346 case GL_LUMINANCE12:
347 case GL_LUMINANCE16:
348 case 2:
349 case GL_LUMINANCE_ALPHA:
350 case GL_LUMINANCE4_ALPHA4:
351 case GL_LUMINANCE6_ALPHA2:
352 case GL_LUMINANCE8_ALPHA8:
353 case GL_LUMINANCE12_ALPHA4:
354 case GL_LUMINANCE12_ALPHA12:
355 case GL_LUMINANCE16_ALPHA16:
356 case GL_INTENSITY:
357 case GL_INTENSITY4:
358 case GL_INTENSITY8:
359 case GL_INTENSITY12:
360 case GL_INTENSITY16:
361 case 3:
362 case GL_RGB:
363 case GL_BGR:
364 case GL_R3_G3_B2:
365 case GL_RGB4:
366 case GL_RGB5:
367 case GL_RGB8:
368 case GL_RGB10:
369 case GL_RGB12:
370 case GL_RGB16:
371 case 4:
372 case GL_ABGR_EXT:
373 case GL_RGBA:
374 case GL_BGRA:
375 case GL_RGBA2:
376 case GL_RGBA4:
377 case GL_RGB5_A1:
378 case GL_RGBA8:
379 case GL_RGB10_A2:
380 case GL_RGBA12:
381 case GL_RGBA16:
382 /* float texture formats */
383 case GL_ALPHA16F_ARB:
384 case GL_ALPHA32F_ARB:
385 case GL_LUMINANCE16F_ARB:
386 case GL_LUMINANCE32F_ARB:
387 case GL_LUMINANCE_ALPHA16F_ARB:
388 case GL_LUMINANCE_ALPHA32F_ARB:
389 case GL_INTENSITY16F_ARB:
390 case GL_INTENSITY32F_ARB:
391 case GL_RGB16F_ARB:
392 case GL_RGB32F_ARB:
393 case GL_RGBA16F_ARB:
394 case GL_RGBA32F_ARB:
395 /* compressed formats */
396 case GL_COMPRESSED_ALPHA:
397 case GL_COMPRESSED_LUMINANCE:
398 case GL_COMPRESSED_LUMINANCE_ALPHA:
399 case GL_COMPRESSED_INTENSITY:
400 case GL_COMPRESSED_RGB:
401 case GL_COMPRESSED_RGBA:
402 case GL_RGB_S3TC:
403 case GL_RGB4_S3TC:
404 case GL_RGBA_S3TC:
405 case GL_RGBA4_S3TC:
406 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
407 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
408 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
409 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
410 case GL_COMPRESSED_RGB_FXT1_3DFX:
411 case GL_COMPRESSED_RGBA_FXT1_3DFX:
412 return GL_TRUE;
413 case GL_YCBCR_MESA: /* not considered to be RGB */
414 default:
415 return GL_FALSE;
416 }
417 }
418
419
420 /**
421 * Test if the given image format is a color index format.
422 */
423 static GLboolean
424 is_index_format(GLenum format)
425 {
426 switch (format) {
427 case GL_COLOR_INDEX:
428 case GL_COLOR_INDEX1_EXT:
429 case GL_COLOR_INDEX2_EXT:
430 case GL_COLOR_INDEX4_EXT:
431 case GL_COLOR_INDEX8_EXT:
432 case GL_COLOR_INDEX12_EXT:
433 case GL_COLOR_INDEX16_EXT:
434 return GL_TRUE;
435 default:
436 return GL_FALSE;
437 }
438 }
439
440
441 /**
442 * Test if the given image format is a depth component format.
443 */
444 static GLboolean
445 is_depth_format(GLenum format)
446 {
447 switch (format) {
448 case GL_DEPTH_COMPONENT16_ARB:
449 case GL_DEPTH_COMPONENT24_ARB:
450 case GL_DEPTH_COMPONENT32_ARB:
451 case GL_DEPTH_COMPONENT:
452 return GL_TRUE;
453 default:
454 return GL_FALSE;
455 }
456 }
457
458
459 /**
460 * Test if the given image format is a YCbCr format.
461 */
462 static GLboolean
463 is_ycbcr_format(GLenum format)
464 {
465 switch (format) {
466 case GL_YCBCR_MESA:
467 return GL_TRUE;
468 default:
469 return GL_FALSE;
470 }
471 }
472
473
474 /**
475 * Test if it is a supported compressed format.
476 *
477 * \param internalFormat the internal format token provided by the user.
478 *
479 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
480 * GL_FALSE otherwise.
481 *
482 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
483 * are supported.
484 */
485 static GLboolean
486 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
487 {
488 (void) ctx;
489 switch (internalFormat) {
490 case GL_COMPRESSED_RGB_FXT1_3DFX:
491 case GL_COMPRESSED_RGBA_FXT1_3DFX:
492 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
493 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
494 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
495 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
496 case GL_RGB_S3TC:
497 case GL_RGB4_S3TC:
498 case GL_RGBA_S3TC:
499 case GL_RGBA4_S3TC:
500 return GL_TRUE;
501 default:
502 return GL_FALSE;
503 }
504 }
505
506
507 /**
508 * Store a gl_texture_image pointer in a gl_texture_object structure
509 * according to the target and level parameters.
510 *
511 * \param tObj texture object.
512 * \param target texture target.
513 * \param level image level.
514 * \param texImage texture image.
515 *
516 * This was basically prompted by the introduction of cube maps.
517 */
518 void
519 _mesa_set_tex_image(struct gl_texture_object *tObj,
520 GLenum target, GLint level,
521 struct gl_texture_image *texImage)
522 {
523 ASSERT(tObj);
524 ASSERT(texImage);
525 switch (target) {
526 case GL_TEXTURE_1D:
527 case GL_TEXTURE_2D:
528 case GL_TEXTURE_3D:
529 tObj->Image[0][level] = texImage;
530 break;
531 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
532 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
533 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
534 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
535 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
536 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
537 {
538 GLuint face = ((GLuint) target -
539 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
540 tObj->Image[face][level] = texImage;
541 }
542 break;
543 case GL_TEXTURE_RECTANGLE_NV:
544 ASSERT(level == 0);
545 tObj->Image[0][level] = texImage;
546 break;
547 default:
548 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
549 return;
550 }
551 /* Set the 'back' pointer */
552 texImage->TexObject = tObj;
553 }
554
555
556 /**
557 * Allocate a texture image structure.
558 *
559 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
560 * driver.
561 *
562 * \return a pointer to gl_texture_image struct with all fields initialized to
563 * zero.
564 */
565 struct gl_texture_image *
566 _mesa_new_texture_image( GLcontext *ctx )
567 {
568 (void) ctx;
569 return CALLOC_STRUCT(gl_texture_image);
570 }
571
572
573 /**
574 * Free texture image data.
575 *
576 * \param teximage texture image.
577 *
578 * Free the texture image data if it's not marked as client data.
579 */
580 void
581 _mesa_free_texture_image_data( GLcontext *ctx, struct gl_texture_image *texImage )
582 {
583 if (texImage->Data && !texImage->IsClientData) {
584 /* free the old texture data */
585 MESA_PBUFFER_FREE(texImage->Data);
586 }
587
588 texImage->Data = NULL;
589 }
590
591
592 /**
593 * Free texture image.
594 *
595 * \param teximage texture image.
596 *
597 * Free the texture image structure and the associated image data.
598 */
599 void
600 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
601 {
602 if (texImage->Data) {
603 ctx->Driver.FreeTexImageData( ctx, texImage );
604 }
605 ASSERT(texImage->Data == NULL);
606 FREE( texImage );
607 }
608
609
610 /**
611 * Test if a target is a proxy target.
612 *
613 * \param target texture target.
614 *
615 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
616 */
617 static GLboolean
618 is_proxy_target(GLenum target)
619 {
620 return (target == GL_PROXY_TEXTURE_1D ||
621 target == GL_PROXY_TEXTURE_2D ||
622 target == GL_PROXY_TEXTURE_3D ||
623 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
624 target == GL_PROXY_TEXTURE_RECTANGLE_NV);
625 }
626
627
628 /**
629 * Get the texture object that corresponds to the target of the given texture unit.
630 *
631 * \param ctx GL context.
632 * \param texUnit texture unit.
633 * \param target texture target.
634 *
635 * \return pointer to the texture object on success, or NULL on failure.
636 *
637 * \sa gl_texture_unit.
638 */
639 struct gl_texture_object *
640 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
641 GLenum target)
642 {
643 switch (target) {
644 case GL_TEXTURE_1D:
645 return texUnit->Current1D;
646 case GL_PROXY_TEXTURE_1D:
647 return ctx->Texture.Proxy1D;
648 case GL_TEXTURE_2D:
649 return texUnit->Current2D;
650 case GL_PROXY_TEXTURE_2D:
651 return ctx->Texture.Proxy2D;
652 case GL_TEXTURE_3D:
653 return texUnit->Current3D;
654 case GL_PROXY_TEXTURE_3D:
655 return ctx->Texture.Proxy3D;
656 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
657 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
658 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
659 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
660 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
661 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
662 case GL_TEXTURE_CUBE_MAP_ARB:
663 return ctx->Extensions.ARB_texture_cube_map
664 ? texUnit->CurrentCubeMap : NULL;
665 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
666 return ctx->Extensions.ARB_texture_cube_map
667 ? ctx->Texture.ProxyCubeMap : NULL;
668 case GL_TEXTURE_RECTANGLE_NV:
669 return ctx->Extensions.NV_texture_rectangle
670 ? texUnit->CurrentRect : NULL;
671 case GL_PROXY_TEXTURE_RECTANGLE_NV:
672 return ctx->Extensions.NV_texture_rectangle
673 ? ctx->Texture.ProxyRect : NULL;
674 default:
675 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
676 return NULL;
677 }
678 }
679
680
681 /**
682 * Get the texture image struct which corresponds to target and level
683 * of the given texture unit.
684 *
685 * \param ctx GL context.
686 * \param texUnit texture unit.
687 * \param target texture target.
688 * \param level image level.
689 *
690 * \return pointer to the texture image structure on success, or NULL on failure.
691 *
692 * \sa gl_texture_unit.
693 */
694 struct gl_texture_image *
695 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
696 GLenum target, GLint level)
697 {
698 ASSERT(texUnit);
699 ASSERT(level < MAX_TEXTURE_LEVELS);
700 switch (target) {
701 case GL_TEXTURE_1D:
702 return texUnit->Current1D->Image[0][level];
703 case GL_PROXY_TEXTURE_1D:
704 return ctx->Texture.Proxy1D->Image[0][level];
705 case GL_TEXTURE_2D:
706 return texUnit->Current2D->Image[0][level];
707 case GL_PROXY_TEXTURE_2D:
708 return ctx->Texture.Proxy2D->Image[0][level];
709 case GL_TEXTURE_3D:
710 return texUnit->Current3D->Image[0][level];
711 case GL_PROXY_TEXTURE_3D:
712 return ctx->Texture.Proxy3D->Image[0][level];
713 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
714 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
715 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
716 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
717 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
718 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
719 if (ctx->Extensions.ARB_texture_cube_map) {
720 GLuint face = ((GLuint) target -
721 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
722 return texUnit->CurrentCubeMap->Image[face][level];
723 }
724 else
725 return NULL;
726 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
727 if (ctx->Extensions.ARB_texture_cube_map)
728 return ctx->Texture.ProxyCubeMap->Image[0][level];
729 else
730 return NULL;
731 case GL_TEXTURE_RECTANGLE_NV:
732 if (ctx->Extensions.NV_texture_rectangle) {
733 ASSERT(level == 0);
734 return texUnit->CurrentRect->Image[0][level];
735 }
736 else {
737 return NULL;
738 }
739 case GL_PROXY_TEXTURE_RECTANGLE_NV:
740 if (ctx->Extensions.NV_texture_rectangle) {
741 ASSERT(level == 0);
742 return ctx->Texture.ProxyRect->Image[0][level];
743 }
744 else {
745 return NULL;
746 }
747 default:
748 _mesa_problem(ctx, "bad target in _mesa_select_tex_image()");
749 return NULL;
750 }
751 }
752
753
754 /**
755 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
756 * it and install it. Only return NULL if passed a bad parameter or run
757 * out of memory.
758 */
759 struct gl_texture_image *
760 _mesa_get_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
761 GLenum target, GLint level)
762 {
763 struct gl_texture_image *texImage;
764 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
765 if (!texImage) {
766 struct gl_texture_object *texObj;
767 texImage = ctx->Driver.NewTextureImage(ctx);
768 if (!texImage) {
769 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
770 return NULL;
771 }
772 texObj = _mesa_select_tex_object(ctx, texUnit, target);
773 ASSERT(texObj);
774 _mesa_set_tex_image(texObj, target, level, texImage);
775 }
776 return texImage;
777 }
778
779
780 /**
781 * Return pointer to the specified proxy texture image.
782 * Note that proxy textures are per-context, not per-texture unit.
783 * \return pointer to texture image or NULL if invalid target, invalid
784 * level, or out of memory.
785 */
786 struct gl_texture_image *
787 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
788 {
789 struct gl_texture_image *texImage;
790
791 if (level < 0 )
792 return NULL;
793
794 switch (target) {
795 case GL_PROXY_TEXTURE_1D:
796 if (level >= ctx->Const.MaxTextureLevels)
797 return NULL;
798 texImage = ctx->Texture.Proxy1D->Image[0][level];
799 if (!texImage) {
800 texImage = ctx->Driver.NewTextureImage(ctx);
801 if (!texImage) {
802 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
803 return NULL;
804 }
805 ctx->Texture.Proxy1D->Image[0][level] = texImage;
806 /* Set the 'back' pointer */
807 texImage->TexObject = ctx->Texture.Proxy1D;
808 }
809 return texImage;
810 case GL_PROXY_TEXTURE_2D:
811 if (level >= ctx->Const.MaxTextureLevels)
812 return NULL;
813 texImage = ctx->Texture.Proxy2D->Image[0][level];
814 if (!texImage) {
815 texImage = ctx->Driver.NewTextureImage(ctx);
816 if (!texImage) {
817 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
818 return NULL;
819 }
820 ctx->Texture.Proxy2D->Image[0][level] = texImage;
821 /* Set the 'back' pointer */
822 texImage->TexObject = ctx->Texture.Proxy2D;
823 }
824 return texImage;
825 case GL_PROXY_TEXTURE_3D:
826 if (level >= ctx->Const.Max3DTextureLevels)
827 return NULL;
828 texImage = ctx->Texture.Proxy3D->Image[0][level];
829 if (!texImage) {
830 texImage = ctx->Driver.NewTextureImage(ctx);
831 if (!texImage) {
832 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
833 return NULL;
834 }
835 ctx->Texture.Proxy3D->Image[0][level] = texImage;
836 /* Set the 'back' pointer */
837 texImage->TexObject = ctx->Texture.Proxy3D;
838 }
839 return texImage;
840 case GL_PROXY_TEXTURE_CUBE_MAP:
841 if (level >= ctx->Const.MaxCubeTextureLevels)
842 return NULL;
843 texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
844 if (!texImage) {
845 texImage = ctx->Driver.NewTextureImage(ctx);
846 if (!texImage) {
847 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
848 return NULL;
849 }
850 ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
851 /* Set the 'back' pointer */
852 texImage->TexObject = ctx->Texture.ProxyCubeMap;
853 }
854 return texImage;
855 case GL_PROXY_TEXTURE_RECTANGLE_NV:
856 if (level > 0)
857 return NULL;
858 texImage = ctx->Texture.ProxyRect->Image[0][level];
859 if (!texImage) {
860 texImage = ctx->Driver.NewTextureImage(ctx);
861 if (!texImage) {
862 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
863 return NULL;
864 }
865 ctx->Texture.ProxyRect->Image[0][level] = texImage;
866 /* Set the 'back' pointer */
867 texImage->TexObject = ctx->Texture.ProxyRect;
868 }
869 return texImage;
870 default:
871 return NULL;
872 }
873 }
874
875
876 /**
877 * Get the maximum number of allowed mipmap levels.
878 *
879 * \param ctx GL context.
880 * \param target texture target.
881 *
882 * \return the maximum number of allowed mipmap levels for the given
883 * texture target, or zero if passed a bad target.
884 *
885 * \sa gl_constants.
886 */
887 GLint
888 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
889 {
890 switch (target) {
891 case GL_TEXTURE_1D:
892 case GL_PROXY_TEXTURE_1D:
893 case GL_TEXTURE_2D:
894 case GL_PROXY_TEXTURE_2D:
895 return ctx->Const.MaxTextureLevels;
896 case GL_TEXTURE_3D:
897 case GL_PROXY_TEXTURE_3D:
898 return ctx->Const.Max3DTextureLevels;
899 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
900 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
901 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
902 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
903 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
904 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
905 case GL_TEXTURE_CUBE_MAP_ARB:
906 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
907 return ctx->Const.MaxCubeTextureLevels;
908 case GL_TEXTURE_RECTANGLE_NV:
909 case GL_PROXY_TEXTURE_RECTANGLE_NV:
910 return 1;
911 default:
912 return 0; /* bad target */
913 }
914 }
915
916
917
918 #if 000 /* not used anymore */
919 /*
920 * glTexImage[123]D can accept a NULL image pointer. In this case we
921 * create a texture image with unspecified image contents per the OpenGL
922 * spec.
923 */
924 static GLubyte *
925 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
926 {
927 const GLint components = _mesa_components_in_format(format);
928 const GLint numPixels = width * height * depth;
929 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
930
931 #ifdef DEBUG
932 /*
933 * Let's see if anyone finds this. If glTexImage2D() is called with
934 * a NULL image pointer then load the texture image with something
935 * interesting instead of leaving it indeterminate.
936 */
937 if (data) {
938 static const char message[8][32] = {
939 " X X XXXXX XXX X ",
940 " XX XX X X X X X ",
941 " X X X X X X X ",
942 " X X XXXX XXX XXXXX ",
943 " X X X X X X ",
944 " X X X X X X X ",
945 " X X XXXXX XXX X X ",
946 " "
947 };
948
949 GLubyte *imgPtr = data;
950 GLint h, i, j, k;
951 for (h = 0; h < depth; h++) {
952 for (i = 0; i < height; i++) {
953 GLint srcRow = 7 - (i % 8);
954 for (j = 0; j < width; j++) {
955 GLint srcCol = j % 32;
956 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
957 for (k = 0; k < components; k++) {
958 *imgPtr++ = texel;
959 }
960 }
961 }
962 }
963 }
964 #endif
965
966 return data;
967 }
968 #endif
969
970
971
972 /**
973 * Reset the fields of a gl_texture_image struct to zero.
974 *
975 * \param img texture image structure.
976 *
977 * This is called when a proxy texture test fails, we set all the
978 * image members (except DriverData) to zero.
979 * It's also used in glTexImage[123]D as a safeguard to be sure all
980 * required fields get initialized properly by the Driver.TexImage[123]D
981 * functions.
982 */
983 static void
984 clear_teximage_fields(struct gl_texture_image *img)
985 {
986 ASSERT(img);
987 img->Format = 0;
988 img->IntFormat = 0;
989 img->Border = 0;
990 img->Width = 0;
991 img->Height = 0;
992 img->Depth = 0;
993 img->RowStride = 0;
994 img->Width2 = 0;
995 img->Height2 = 0;
996 img->Depth2 = 0;
997 img->WidthLog2 = 0;
998 img->HeightLog2 = 0;
999 img->DepthLog2 = 0;
1000 img->Data = NULL;
1001 img->TexFormat = &_mesa_null_texformat;
1002 img->FetchTexelc = NULL;
1003 img->FetchTexelf = NULL;
1004 img->IsCompressed = 0;
1005 img->CompressedSize = 0;
1006 }
1007
1008
1009 /**
1010 * Initialize basic fields of the gl_texture_image struct.
1011 *
1012 * \param ctx GL context.
1013 * \param target texture target.
1014 * \param img texture image structure to be initialized.
1015 * \param width image width.
1016 * \param height image height.
1017 * \param depth image depth.
1018 * \param border image border.
1019 * \param internalFormat internal format.
1020 *
1021 * Fills in the fields of \p img with the given information.
1022 * Note: width, height and depth include the border.
1023 */
1024 void
1025 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1026 struct gl_texture_image *img,
1027 GLsizei width, GLsizei height, GLsizei depth,
1028 GLint border, GLenum internalFormat)
1029 {
1030 ASSERT(img);
1031 img->Format = _mesa_base_tex_format( ctx, internalFormat );
1032 ASSERT(img->Format > 0);
1033 img->IntFormat = internalFormat;
1034 img->Border = border;
1035 img->Width = width;
1036 img->Height = height;
1037 img->Depth = depth;
1038 img->RowStride = width;
1039 img->WidthLog2 = logbase2(width - 2 * border);
1040 if (height == 1) /* 1-D texture */
1041 img->HeightLog2 = 0;
1042 else
1043 img->HeightLog2 = logbase2(height - 2 * border);
1044 if (depth == 1) /* 2-D texture */
1045 img->DepthLog2 = 0;
1046 else
1047 img->DepthLog2 = logbase2(depth - 2 * border);
1048 img->Width2 = width - 2 * border; /*1 << img->WidthLog2;*/
1049 img->Height2 = height - 2 * border; /*1 << img->HeightLog2;*/
1050 img->Depth2 = depth - 2 * border; /*1 << img->DepthLog2;*/
1051 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1052 img->IsCompressed = is_compressed_format(ctx, internalFormat);
1053 if (img->IsCompressed)
1054 img->CompressedSize = ctx->Driver.CompressedTextureSize(ctx, width,
1055 height, depth, internalFormat);
1056 else
1057 img->CompressedSize = 0;
1058
1059 if ((width == 1 || _mesa_bitcount(width - 2 * border) == 1) &&
1060 (height == 1 || _mesa_bitcount(height - 2 * border) == 1) &&
1061 (depth == 1 || _mesa_bitcount(depth - 2 * border) == 1))
1062 img->_IsPowerOfTwo = GL_TRUE;
1063 else
1064 img->_IsPowerOfTwo = GL_FALSE;
1065
1066 /* Compute Width/Height/DepthScale for mipmap lod computation */
1067 if (target == GL_TEXTURE_RECTANGLE_NV) {
1068 /* scale = 1.0 since texture coords directly map to texels */
1069 img->WidthScale = 1.0;
1070 img->HeightScale = 1.0;
1071 img->DepthScale = 1.0;
1072 }
1073 else {
1074 img->WidthScale = (GLfloat) img->Width;
1075 img->HeightScale = (GLfloat) img->Height;
1076 img->DepthScale = (GLfloat) img->Depth;
1077 }
1078 }
1079
1080
1081 /**
1082 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1083 * level, width, height and depth against the ctx->Const limits for textures.
1084 *
1085 * A hardware driver might override this function if, for example, the
1086 * max 3D texture size is 512x512x64 (i.e. not a cube).
1087 *
1088 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1089 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1090 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1091 * \param level as passed to glTexImage
1092 * \param internalFormat as passed to glTexImage
1093 * \param format as passed to glTexImage
1094 * \param type as passed to glTexImage
1095 * \param width as passed to glTexImage
1096 * \param height as passed to glTexImage
1097 * \param depth as passed to glTexImage
1098 * \param border as passed to glTexImage
1099 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1100 */
1101 GLboolean
1102 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1103 GLint internalFormat, GLenum format, GLenum type,
1104 GLint width, GLint height, GLint depth, GLint border)
1105 {
1106 GLint maxSize;
1107
1108 (void) internalFormat;
1109 (void) format;
1110 (void) type;
1111
1112 switch (target) {
1113 case GL_PROXY_TEXTURE_1D:
1114 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1115 if (width < 2 * border || width > 2 + maxSize ||
1116 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1117 _mesa_bitcount(width - 2 * border) != 1) ||
1118 level >= ctx->Const.MaxTextureLevels) {
1119 /* bad width or level */
1120 return GL_FALSE;
1121 }
1122 return GL_TRUE;
1123 case GL_PROXY_TEXTURE_2D:
1124 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1125 if (width < 2 * border || width > 2 + maxSize ||
1126 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1127 _mesa_bitcount(width - 2 * border) != 1) ||
1128 height < 2 * border || height > 2 + maxSize ||
1129 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1130 _mesa_bitcount(height - 2 * border) != 1) ||
1131 level >= ctx->Const.MaxTextureLevels) {
1132 /* bad width or height or level */
1133 return GL_FALSE;
1134 }
1135 return GL_TRUE;
1136 case GL_PROXY_TEXTURE_3D:
1137 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1138 if (width < 2 * border || width > 2 + maxSize ||
1139 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1140 _mesa_bitcount(width - 2 * border) != 1) ||
1141 height < 2 * border || height > 2 + maxSize ||
1142 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1143 _mesa_bitcount(height - 2 * border) != 1) ||
1144 depth < 2 * border || depth > 2 + maxSize ||
1145 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1146 _mesa_bitcount(depth - 2 * border) != 1) ||
1147 level >= ctx->Const.Max3DTextureLevels) {
1148 /* bad width or height or depth or level */
1149 return GL_FALSE;
1150 }
1151 return GL_TRUE;
1152 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1153 if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
1154 height < 1 || height > ctx->Const.MaxTextureRectSize ||
1155 level != 0) {
1156 /* bad width or height or level */
1157 return GL_FALSE;
1158 }
1159 return GL_TRUE;
1160 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1161 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1162 if (width < 2 * border || width > 2 + maxSize ||
1163 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1164 _mesa_bitcount(width - 2 * border) != 1) ||
1165 height < 2 * border || height > 2 + maxSize ||
1166 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1167 _mesa_bitcount(height - 2 * border) != 1) ||
1168 level >= ctx->Const.MaxCubeTextureLevels) {
1169 /* bad width or height */
1170 return GL_FALSE;
1171 }
1172 return GL_TRUE;
1173 default:
1174 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1175 return GL_FALSE;
1176 }
1177 }
1178
1179
1180 /**
1181 * Test the glTexImage[123]D() parameters for errors.
1182 *
1183 * \param ctx GL context.
1184 * \param target texture target given by the user.
1185 * \param level image level given by the user.
1186 * \param internalFormat internal format given by the user.
1187 * \param format pixel data format given by the user.
1188 * \param type pixel data type given by the user.
1189 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1190 * \param width image width given by the user.
1191 * \param height image height given by the user.
1192 * \param depth image depth given by the user.
1193 * \param border image border given by the user.
1194 *
1195 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1196 *
1197 * Verifies each of the parameters against the constants specified in
1198 * __GLcontextRec::Const and the supported extensions, and according to the
1199 * OpenGL specification.
1200 */
1201 static GLboolean
1202 texture_error_check( GLcontext *ctx, GLenum target,
1203 GLint level, GLint internalFormat,
1204 GLenum format, GLenum type,
1205 GLuint dimensions,
1206 GLint width, GLint height,
1207 GLint depth, GLint border )
1208 {
1209 const GLboolean isProxy = is_proxy_target(target);
1210 GLboolean sizeOK;
1211 GLboolean colorFormat, indexFormat;
1212
1213 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1214 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1215 if (!isProxy) {
1216 _mesa_error(ctx, GL_INVALID_VALUE,
1217 "glTexImage%dD(level=%d)", dimensions, level);
1218 }
1219 return GL_TRUE;
1220 }
1221
1222 /* Check border */
1223 if (border < 0 || border > 1 ||
1224 ((target == GL_TEXTURE_RECTANGLE_NV ||
1225 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1226 if (!isProxy) {
1227 _mesa_error(ctx, GL_INVALID_VALUE,
1228 "glTexImage%dD(border=%d)", dimensions, border);
1229 }
1230 return GL_TRUE;
1231 }
1232
1233 if (width < 0 || height < 0 || depth < 0) {
1234 if (!isProxy) {
1235 _mesa_error(ctx, GL_INVALID_VALUE,
1236 "glTexImage%dD(width, height or depth < 0)", dimensions);
1237 }
1238 return GL_TRUE;
1239 }
1240
1241 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1242 * level, width, height and depth.
1243 */
1244 if (dimensions == 1) {
1245 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1246 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1247 level, internalFormat,
1248 format, type,
1249 width, 1, 1, border);
1250 }
1251 else {
1252 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1253 return GL_TRUE;
1254 }
1255 }
1256 else if (dimensions == 2) {
1257 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1258 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1259 level, internalFormat,
1260 format, type,
1261 width, height, 1, border);
1262 }
1263 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1264 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1265 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1266 if (!ctx->Extensions.ARB_texture_cube_map) {
1267 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1268 return GL_TRUE;
1269 }
1270 sizeOK = (width == height) &&
1271 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1272 level, internalFormat, format, type,
1273 width, height, 1, border);
1274 }
1275 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1276 target == GL_TEXTURE_RECTANGLE_NV) {
1277 if (!ctx->Extensions.NV_texture_rectangle) {
1278 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1279 return GL_TRUE;
1280 }
1281 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1282 GL_PROXY_TEXTURE_RECTANGLE_NV,
1283 level, internalFormat,
1284 format, type,
1285 width, height, 1, border);
1286 }
1287 else {
1288 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1289 return GL_TRUE;
1290 }
1291 }
1292 else if (dimensions == 3) {
1293 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1294 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_3D,
1295 level, internalFormat,
1296 format, type,
1297 width, height, depth, border);
1298 }
1299 else {
1300 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1301 return GL_TRUE;
1302 }
1303 }
1304 else {
1305 _mesa_problem( ctx, "bad dims in texture_error_check" );
1306 return GL_TRUE;
1307 }
1308
1309 if (!sizeOK) {
1310 if (!isProxy) {
1311 _mesa_error(ctx, GL_INVALID_VALUE,
1312 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1313 dimensions, level, width, height, depth);
1314 }
1315 return GL_TRUE;
1316 }
1317
1318 /* Check internalFormat */
1319 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1320 if (!isProxy) {
1321 _mesa_error(ctx, GL_INVALID_VALUE,
1322 "glTexImage%dD(internalFormat=0x%x)",
1323 dimensions, internalFormat);
1324 }
1325 return GL_TRUE;
1326 }
1327
1328 /* Check incoming image format and type */
1329 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1330 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1331 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1332 */
1333 if (!isProxy) {
1334 _mesa_error(ctx, GL_INVALID_OPERATION,
1335 "glTexImage%dD(format or type)", dimensions);
1336 }
1337 return GL_TRUE;
1338 }
1339
1340 /* make sure internal format and format basically agree */
1341 colorFormat = is_color_format(format);
1342 indexFormat = is_index_format(format);
1343 if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1344 (is_index_format(internalFormat) && !indexFormat) ||
1345 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1346 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format))) {
1347 if (!isProxy)
1348 _mesa_error(ctx, GL_INVALID_OPERATION,
1349 "glTexImage(internalFormat/format)");
1350 return GL_TRUE;
1351 }
1352
1353 /* additional checks for ycbcr textures */
1354 if (internalFormat == GL_YCBCR_MESA) {
1355 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1356 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1357 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1358 char message[100];
1359 _mesa_sprintf(message,
1360 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1361 _mesa_error(ctx, GL_INVALID_ENUM, message);
1362 return GL_TRUE; /* error */
1363 }
1364 if (target != GL_TEXTURE_2D &&
1365 target != GL_PROXY_TEXTURE_2D &&
1366 target != GL_TEXTURE_RECTANGLE_NV &&
1367 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1368 if (!isProxy)
1369 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1370 return GL_TRUE;
1371 }
1372 if (border != 0) {
1373 if (!isProxy) {
1374 char message[100];
1375 _mesa_sprintf(message,
1376 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1377 dimensions, border);
1378 _mesa_error(ctx, GL_INVALID_VALUE, message);
1379 }
1380 return GL_TRUE;
1381 }
1382 }
1383
1384 /* additional checks for depth textures */
1385 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1386 /* Only 1D and 2D textures supported */
1387 if (target != GL_TEXTURE_1D &&
1388 target != GL_PROXY_TEXTURE_1D &&
1389 target != GL_TEXTURE_2D &&
1390 target != GL_PROXY_TEXTURE_2D) {
1391 if (!isProxy)
1392 _mesa_error(ctx, GL_INVALID_ENUM,
1393 "glTexImage(target/internalFormat)");
1394 return GL_TRUE;
1395 }
1396 }
1397
1398 /* additional checks for compressed textures */
1399 if (is_compressed_format(ctx, internalFormat)) {
1400 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1401 /* OK */
1402 }
1403 else if (ctx->Extensions.ARB_texture_cube_map &&
1404 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1405 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1406 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1407 /* OK */
1408 }
1409 else {
1410 if (!isProxy) {
1411 _mesa_error(ctx, GL_INVALID_ENUM,
1412 "glTexImage%d(target)", dimensions);
1413 return GL_TRUE;
1414 }
1415 }
1416 if (border != 0) {
1417 if (!isProxy) {
1418 _mesa_error(ctx, GL_INVALID_OPERATION,
1419 "glTexImage%D(border!=0)", dimensions);
1420 }
1421 return GL_TRUE;
1422 }
1423 }
1424
1425 /* if we get here, the parameters are OK */
1426 return GL_FALSE;
1427 }
1428
1429
1430 /**
1431 * Test glTexSubImage[123]D() parameters for errors.
1432 *
1433 * \param ctx GL context.
1434 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1435 * \param target texture target given by the user.
1436 * \param level image level given by the user.
1437 * \param xoffset sub-image x offset given by the user.
1438 * \param yoffset sub-image y offset given by the user.
1439 * \param zoffset sub-image z offset given by the user.
1440 * \param format pixel data format given by the user.
1441 * \param type pixel data type given by the user.
1442 * \param width image width given by the user.
1443 * \param height image height given by the user.
1444 * \param depth image depth given by the user.
1445 *
1446 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1447 *
1448 * Verifies each of the parameters against the constants specified in
1449 * __GLcontextRec::Const and the supported extensions, and according to the
1450 * OpenGL specification.
1451 */
1452 static GLboolean
1453 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1454 GLenum target, GLint level,
1455 GLint xoffset, GLint yoffset, GLint zoffset,
1456 GLint width, GLint height, GLint depth,
1457 GLenum format, GLenum type )
1458 {
1459 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1460 struct gl_texture_image *destTex;
1461
1462 /* Check target */
1463 if (dimensions == 1) {
1464 if (target != GL_TEXTURE_1D) {
1465 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1466 return GL_TRUE;
1467 }
1468 }
1469 else if (dimensions == 2) {
1470 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1471 target <=GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1472 if (!ctx->Extensions.ARB_texture_cube_map) {
1473 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1474 return GL_TRUE;
1475 }
1476 }
1477 else if (ctx->Extensions.NV_texture_rectangle &&
1478 target == GL_TEXTURE_RECTANGLE_NV) {
1479 if (!ctx->Extensions.NV_texture_rectangle) {
1480 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1481 return GL_TRUE;
1482 }
1483 }
1484 else if (target != GL_TEXTURE_2D) {
1485 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1486 return GL_TRUE;
1487 }
1488 }
1489 else if (dimensions == 3) {
1490 if (target != GL_TEXTURE_3D) {
1491 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1492 return GL_TRUE;
1493 }
1494 }
1495 else {
1496 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1497 return GL_TRUE;
1498 }
1499
1500 /* Basic level check */
1501 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1502 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1503 return GL_TRUE;
1504 }
1505
1506 if (width < 0) {
1507 _mesa_error(ctx, GL_INVALID_VALUE,
1508 "glTexSubImage%dD(width=%d)", dimensions, width);
1509 return GL_TRUE;
1510 }
1511 if (height < 0 && dimensions > 1) {
1512 _mesa_error(ctx, GL_INVALID_VALUE,
1513 "glTexSubImage%dD(height=%d)", dimensions, height);
1514 return GL_TRUE;
1515 }
1516 if (depth < 0 && dimensions > 2) {
1517 _mesa_error(ctx, GL_INVALID_VALUE,
1518 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1519 return GL_TRUE;
1520 }
1521
1522 destTex = _mesa_select_tex_image(ctx, texUnit, target, level);
1523
1524 if (!destTex) {
1525 /* undefined image level */
1526 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1527 return GL_TRUE;
1528 }
1529
1530 if (xoffset < -((GLint)destTex->Border)) {
1531 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1532 dimensions);
1533 return GL_TRUE;
1534 }
1535 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1536 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1537 dimensions);
1538 return GL_TRUE;
1539 }
1540 if (dimensions > 1) {
1541 if (yoffset < -((GLint)destTex->Border)) {
1542 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1543 dimensions);
1544 return GL_TRUE;
1545 }
1546 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1547 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1548 dimensions);
1549 return GL_TRUE;
1550 }
1551 }
1552 if (dimensions > 2) {
1553 if (zoffset < -((GLint)destTex->Border)) {
1554 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1555 return GL_TRUE;
1556 }
1557 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1558 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1559 return GL_TRUE;
1560 }
1561 }
1562
1563 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1564 _mesa_error(ctx, GL_INVALID_ENUM,
1565 "glTexSubImage%dD(format or type)", dimensions);
1566 return GL_TRUE;
1567 }
1568
1569 if (destTex->IsCompressed) {
1570 const struct gl_texture_unit *texUnit;
1571 const struct gl_texture_image *texImage;
1572 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1573 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1574
1575 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1576 /* OK */
1577 }
1578 else if (ctx->Extensions.ARB_texture_cube_map &&
1579 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1580 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1581 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1582 /* OK */
1583 }
1584 else {
1585 _mesa_error(ctx, GL_INVALID_ENUM,
1586 "glTexSubImage%D(target)", dimensions);
1587 return GL_TRUE;
1588 }
1589 /* offset must be multiple of 4 */
1590 if ((xoffset & 3) || (yoffset & 3)) {
1591 _mesa_error(ctx, GL_INVALID_OPERATION,
1592 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1593 return GL_TRUE;
1594 }
1595 /* size must be multiple of 4 or equal to whole texture size */
1596 if ((width & 3) && (GLuint) width != texImage->Width) {
1597 _mesa_error(ctx, GL_INVALID_OPERATION,
1598 "glTexSubImage%D(width)", dimensions);
1599 return GL_TRUE;
1600 }
1601 if ((height & 3) && (GLuint) height != texImage->Height) {
1602 _mesa_error(ctx, GL_INVALID_OPERATION,
1603 "glTexSubImage%D(width)", dimensions);
1604 return GL_TRUE;
1605 }
1606 }
1607
1608 return GL_FALSE;
1609 }
1610
1611
1612 /**
1613 * Test glCopyTexImage[12]D() parameters for errors.
1614 *
1615 * \param ctx GL context.
1616 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1617 * \param target texture target given by the user.
1618 * \param level image level given by the user.
1619 * \param internalFormat internal format given by the user.
1620 * \param width image width given by the user.
1621 * \param height image height given by the user.
1622 * \param depth image depth given by the user.
1623 * \param border texture border.
1624 *
1625 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1626 *
1627 * Verifies each of the parameters against the constants specified in
1628 * __GLcontextRec::Const and the supported extensions, and according to the
1629 * OpenGL specification.
1630 */
1631 static GLboolean
1632 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1633 GLenum target, GLint level, GLint internalFormat,
1634 GLint width, GLint height, GLint border )
1635 {
1636 GLenum format, type;
1637 GLboolean sizeOK;
1638
1639 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1640 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1641 _mesa_error(ctx, GL_INVALID_VALUE,
1642 "glCopyTexImage%dD(level=%d)", dimensions, level);
1643 return GL_TRUE;
1644 }
1645
1646 /* Check border */
1647 if (border < 0 || border > 1 ||
1648 ((target == GL_TEXTURE_RECTANGLE_NV ||
1649 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1650 return GL_TRUE;
1651 }
1652
1653 /* The format and type aren't really significant here, but we need to pass
1654 * something to TestProxyTexImage().
1655 */
1656 format = _mesa_base_tex_format(ctx, internalFormat);
1657 type = GL_FLOAT;
1658
1659 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1660 * level, width, height and depth.
1661 */
1662 if (dimensions == 1) {
1663 if (target == GL_TEXTURE_1D) {
1664 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1665 level, internalFormat,
1666 format, type,
1667 width, 1, 1, border);
1668 }
1669 else {
1670 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1671 return GL_TRUE;
1672 }
1673 }
1674 else if (dimensions == 2) {
1675 if (target == GL_TEXTURE_2D) {
1676 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1677 level, internalFormat,
1678 format, type,
1679 width, height, 1, border);
1680 }
1681 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1682 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1683 if (!ctx->Extensions.ARB_texture_cube_map) {
1684 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1685 return GL_TRUE;
1686 }
1687 sizeOK = (width == height) &&
1688 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1689 level, internalFormat, format, type,
1690 width, height, 1, border);
1691 }
1692 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1693 if (!ctx->Extensions.NV_texture_rectangle) {
1694 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1695 return GL_TRUE;
1696 }
1697 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1698 GL_PROXY_TEXTURE_RECTANGLE_NV,
1699 level, internalFormat,
1700 format, type,
1701 width, height, 1, border);
1702 }
1703 else {
1704 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1705 return GL_TRUE;
1706 }
1707 }
1708 else {
1709 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1710 return GL_TRUE;
1711 }
1712
1713 if (!sizeOK) {
1714 if (dimensions == 1) {
1715 _mesa_error(ctx, GL_INVALID_VALUE,
1716 "glCopyTexImage1D(width=%d)", width);
1717 }
1718 else {
1719 ASSERT(dimensions == 2);
1720 _mesa_error(ctx, GL_INVALID_VALUE,
1721 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1722 }
1723 return GL_TRUE;
1724 }
1725
1726 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1727 _mesa_error(ctx, GL_INVALID_VALUE,
1728 "glCopyTexImage%dD(internalFormat)", dimensions);
1729 return GL_TRUE;
1730 }
1731
1732 if (is_compressed_format(ctx, internalFormat)) {
1733 if (target != GL_TEXTURE_2D) {
1734 _mesa_error(ctx, GL_INVALID_ENUM,
1735 "glCopyTexImage%d(target)", dimensions);
1736 return GL_TRUE;
1737 }
1738 if (border != 0) {
1739 _mesa_error(ctx, GL_INVALID_OPERATION,
1740 "glCopyTexImage%D(border!=0)", dimensions);
1741 return GL_TRUE;
1742 }
1743 }
1744
1745 /* if we get here, the parameters are OK */
1746 return GL_FALSE;
1747 }
1748
1749
1750 /**
1751 * Test glCopyTexImage[12]D() parameters for errors.
1752 *
1753 * \param ctx GL context.
1754 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1755 * \param target texture target given by the user.
1756 * \param level image level given by the user.
1757 * \param xoffset sub-image x offset given by the user.
1758 * \param yoffset sub-image y offset given by the user.
1759 * \param zoffset sub-image z offset given by the user.
1760 * \param width image width given by the user.
1761 * \param height image height given by the user.
1762 *
1763 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1764 *
1765 * Verifies each of the parameters against the constants specified in
1766 * __GLcontextRec::Const and the supported extensions, and according to the
1767 * OpenGL specification.
1768 */
1769 static GLboolean
1770 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
1771 GLenum target, GLint level,
1772 GLint xoffset, GLint yoffset, GLint zoffset,
1773 GLsizei width, GLsizei height )
1774 {
1775 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1776 struct gl_texture_image *teximage;
1777
1778 /* Check target */
1779 if (dimensions == 1) {
1780 if (target != GL_TEXTURE_1D) {
1781 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
1782 return GL_TRUE;
1783 }
1784 }
1785 else if (dimensions == 2) {
1786 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1787 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1788 if (!ctx->Extensions.ARB_texture_cube_map) {
1789 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1790 return GL_TRUE;
1791 }
1792 }
1793 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1794 if (!ctx->Extensions.NV_texture_rectangle) {
1795 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1796 return GL_TRUE;
1797 }
1798 }
1799 else if (target != GL_TEXTURE_2D) {
1800 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1801 return GL_TRUE;
1802 }
1803 }
1804 else if (dimensions == 3) {
1805 if (target != GL_TEXTURE_3D) {
1806 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
1807 return GL_TRUE;
1808 }
1809 }
1810
1811 /* Check level */
1812 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1813 _mesa_error(ctx, GL_INVALID_VALUE,
1814 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1815 return GL_TRUE;
1816 }
1817
1818 /* Check size */
1819 if (width < 0) {
1820 _mesa_error(ctx, GL_INVALID_VALUE,
1821 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1822 return GL_TRUE;
1823 }
1824 if (dimensions > 1 && height < 0) {
1825 _mesa_error(ctx, GL_INVALID_VALUE,
1826 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1827 return GL_TRUE;
1828 }
1829
1830 teximage = _mesa_select_tex_image(ctx, texUnit, target, level);
1831 if (!teximage) {
1832 _mesa_error(ctx, GL_INVALID_OPERATION,
1833 "glCopyTexSubImage%dD(undefined texture level: %d)",
1834 dimensions, level);
1835 return GL_TRUE;
1836 }
1837
1838 if (xoffset < -((GLint)teximage->Border)) {
1839 _mesa_error(ctx, GL_INVALID_VALUE,
1840 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
1841 return GL_TRUE;
1842 }
1843 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
1844 _mesa_error(ctx, GL_INVALID_VALUE,
1845 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1846 return GL_TRUE;
1847 }
1848 if (dimensions > 1) {
1849 if (yoffset < -((GLint)teximage->Border)) {
1850 _mesa_error(ctx, GL_INVALID_VALUE,
1851 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
1852 return GL_TRUE;
1853 }
1854 /* NOTE: we're adding the border here, not subtracting! */
1855 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
1856 _mesa_error(ctx, GL_INVALID_VALUE,
1857 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1858 return GL_TRUE;
1859 }
1860 }
1861
1862 if (dimensions > 2) {
1863 if (zoffset < -((GLint)teximage->Border)) {
1864 _mesa_error(ctx, GL_INVALID_VALUE,
1865 "glCopyTexSubImage%dD(zoffset)", dimensions);
1866 return GL_TRUE;
1867 }
1868 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
1869 _mesa_error(ctx, GL_INVALID_VALUE,
1870 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1871 return GL_TRUE;
1872 }
1873 }
1874
1875 if (teximage->IsCompressed) {
1876 if (target != GL_TEXTURE_2D) {
1877 _mesa_error(ctx, GL_INVALID_ENUM,
1878 "glCopyTexSubImage%d(target)", dimensions);
1879 return GL_TRUE;
1880 }
1881 /* offset must be multiple of 4 */
1882 if ((xoffset & 3) || (yoffset & 3)) {
1883 _mesa_error(ctx, GL_INVALID_VALUE,
1884 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
1885 return GL_TRUE;
1886 }
1887 /* size must be multiple of 4 */
1888 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
1889 _mesa_error(ctx, GL_INVALID_VALUE,
1890 "glCopyTexSubImage%D(width)", dimensions);
1891 return GL_TRUE;
1892 }
1893 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
1894 _mesa_error(ctx, GL_INVALID_VALUE,
1895 "glCopyTexSubImage%D(height)", dimensions);
1896 return GL_TRUE;
1897 }
1898 }
1899
1900 if (teximage->IntFormat == GL_YCBCR_MESA) {
1901 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
1902 return GL_TRUE;
1903 }
1904
1905 /* if we get here, the parameters are OK */
1906 return GL_FALSE;
1907 }
1908
1909
1910 /**
1911 * Get texture image. Called by glGetTexImage.
1912 *
1913 * \param target texture target.
1914 * \param level image level.
1915 * \param format pixel data format for returned image.
1916 * \param type pixel data type for returned image.
1917 * \param pixels returned pixel data.
1918 */
1919 void GLAPIENTRY
1920 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
1921 GLenum type, GLvoid *pixels )
1922 {
1923 const struct gl_texture_unit *texUnit;
1924 const struct gl_texture_object *texObj;
1925 const struct gl_texture_image *texImage;
1926 GLint maxLevels = 0;
1927 GET_CURRENT_CONTEXT(ctx);
1928 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1929
1930 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
1931 texObj = _mesa_select_tex_object(ctx, texUnit, target);
1932 if (!texObj || is_proxy_target(target)) {
1933 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
1934 return;
1935 }
1936
1937 maxLevels = _mesa_max_texture_levels(ctx, target);
1938 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
1939
1940 if (level < 0 || level >= maxLevels) {
1941 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
1942 return;
1943 }
1944
1945 if (_mesa_sizeof_packed_type(type) <= 0) {
1946 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
1947 return;
1948 }
1949
1950 if (_mesa_components_in_format(format) <= 0 ||
1951 format == GL_STENCIL_INDEX) {
1952 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
1953 return;
1954 }
1955
1956 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
1957 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1958 }
1959
1960 if (!ctx->Extensions.SGIX_depth_texture && is_depth_format(format)) {
1961 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1962 }
1963
1964 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
1965 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1966 }
1967
1968 if (!pixels)
1969 return;
1970
1971 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1972 if (!texImage) {
1973 /* invalid mipmap level, not an error */
1974 return;
1975 }
1976
1977 /* Make sure the requested image format is compatible with the
1978 * texture's format. We let the colorformat-indexformat go through,
1979 * because the texelfetcher will dequantize to full rgba.
1980 */
1981 if (is_color_format(format)
1982 && !is_color_format(texImage->TexFormat->BaseFormat)
1983 && !is_index_format(texImage->TexFormat->BaseFormat)) {
1984 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1985 return;
1986 }
1987 else if (is_index_format(format)
1988 && !is_index_format(texImage->TexFormat->BaseFormat)) {
1989 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1990 return;
1991 }
1992 else if (is_depth_format(format)
1993 && !is_depth_format(texImage->TexFormat->BaseFormat)) {
1994 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1995 return;
1996 }
1997 else if (is_ycbcr_format(format)
1998 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
1999 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2000 return;
2001 }
2002
2003 /* typically, this will call _mesa_get_teximage() */
2004 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2005 texObj, texImage);
2006 }
2007
2008
2009
2010 /*
2011 * Called from the API. Note that width includes the border.
2012 */
2013 void GLAPIENTRY
2014 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2015 GLsizei width, GLint border, GLenum format,
2016 GLenum type, const GLvoid *pixels )
2017 {
2018 GLsizei postConvWidth = width;
2019 GET_CURRENT_CONTEXT(ctx);
2020 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2021
2022 if (is_color_format(internalFormat)) {
2023 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2024 }
2025
2026 if (target == GL_TEXTURE_1D) {
2027 /* non-proxy target */
2028 struct gl_texture_unit *texUnit;
2029 struct gl_texture_object *texObj;
2030 struct gl_texture_image *texImage;
2031
2032 if (texture_error_check(ctx, target, level, internalFormat,
2033 format, type, 1, postConvWidth, 1, 1, border)) {
2034 return; /* error was recorded */
2035 }
2036
2037 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2038 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2039 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2040
2041 if (!texImage) {
2042 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2043 return;
2044 }
2045 else if (texImage->Data) {
2046 ctx->Driver.FreeTexImageData( ctx, texImage );
2047 }
2048 ASSERT(texImage->Data == NULL);
2049 clear_teximage_fields(texImage); /* not really needed, but helpful */
2050 _mesa_init_teximage_fields(ctx, target, texImage,
2051 postConvWidth, 1, 1,
2052 border, internalFormat);
2053
2054 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2055 _mesa_update_state(ctx);
2056
2057 ASSERT(ctx->Driver.TexImage1D);
2058
2059 /* Give the texture to the driver! <pixels> may be null! */
2060 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2061 width, border, format, type, pixels,
2062 &ctx->Unpack, texObj, texImage);
2063
2064 ASSERT(texImage->TexFormat);
2065
2066 /* If driver didn't explicitly set this, use the defaults */
2067 if (!texImage->FetchTexelc)
2068 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2069 if (!texImage->FetchTexelf)
2070 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2071 ASSERT(texImage->FetchTexelc);
2072 ASSERT(texImage->FetchTexelf);
2073
2074 /* state update */
2075 texObj->Complete = GL_FALSE;
2076 ctx->NewState |= _NEW_TEXTURE;
2077 }
2078 else if (target == GL_PROXY_TEXTURE_1D) {
2079 /* Proxy texture: check for errors and update proxy state */
2080 struct gl_texture_image *texImage;
2081 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2082 if (texture_error_check(ctx, target, level, internalFormat,
2083 format, type, 1, postConvWidth, 1, 1, border)) {
2084 /* when error, clear all proxy texture image parameters */
2085 if (texImage)
2086 clear_teximage_fields(texImage);
2087 }
2088 else {
2089 /* no error, set the tex image parameters */
2090 ASSERT(texImage);
2091 _mesa_init_teximage_fields(ctx, target, texImage,
2092 postConvWidth, 1, 1,
2093 border, internalFormat);
2094 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2095 internalFormat, format, type);
2096 }
2097 }
2098 else {
2099 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2100 return;
2101 }
2102 }
2103
2104
2105 void GLAPIENTRY
2106 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2107 GLsizei width, GLsizei height, GLint border,
2108 GLenum format, GLenum type,
2109 const GLvoid *pixels )
2110 {
2111 GLsizei postConvWidth = width, postConvHeight = height;
2112 GET_CURRENT_CONTEXT(ctx);
2113 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2114
2115 if (is_color_format(internalFormat)) {
2116 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2117 &postConvHeight);
2118 }
2119
2120 if (target == GL_TEXTURE_2D ||
2121 (ctx->Extensions.ARB_texture_cube_map &&
2122 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2123 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2124 (ctx->Extensions.NV_texture_rectangle &&
2125 target == GL_TEXTURE_RECTANGLE_NV)) {
2126 /* non-proxy target */
2127 struct gl_texture_unit *texUnit;
2128 struct gl_texture_object *texObj;
2129 struct gl_texture_image *texImage;
2130
2131 if (texture_error_check(ctx, target, level, internalFormat,
2132 format, type, 2, postConvWidth, postConvHeight,
2133 1, border)) {
2134 return; /* error was recorded */
2135 }
2136
2137 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2138 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2139 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2140 if (!texImage) {
2141 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2142 return;
2143 }
2144 else if (texImage->Data) {
2145 ctx->Driver.FreeTexImageData( ctx, texImage );
2146 }
2147 ASSERT(texImage->Data == NULL);
2148 clear_teximage_fields(texImage); /* not really needed, but helpful */
2149 _mesa_init_teximage_fields(ctx, target, texImage,
2150 postConvWidth, postConvHeight, 1,
2151 border, internalFormat);
2152
2153 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2154 _mesa_update_state(ctx);
2155
2156 ASSERT(ctx->Driver.TexImage2D);
2157
2158 /* Give the texture to the driver! <pixels> may be null! */
2159 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2160 width, height, border, format, type, pixels,
2161 &ctx->Unpack, texObj, texImage);
2162
2163 ASSERT(texImage->TexFormat);
2164
2165 /* If driver didn't explicitly set these, use the defaults */
2166 if (!texImage->FetchTexelc)
2167 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2168 if (!texImage->FetchTexelf)
2169 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2170 ASSERT(texImage->FetchTexelc);
2171 ASSERT(texImage->FetchTexelf);
2172
2173 /* state update */
2174 texObj->Complete = GL_FALSE;
2175 ctx->NewState |= _NEW_TEXTURE;
2176 }
2177 else if (target == GL_PROXY_TEXTURE_2D ||
2178 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2179 ctx->Extensions.ARB_texture_cube_map) ||
2180 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2181 ctx->Extensions.NV_texture_rectangle)) {
2182 /* Proxy texture: check for errors and update proxy state */
2183 struct gl_texture_image *texImage;
2184 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2185 if (texture_error_check(ctx, target, level, internalFormat,
2186 format, type, 2, postConvWidth, postConvHeight,
2187 1, border)) {
2188 /* when error, clear all proxy texture image parameters */
2189 if (texImage)
2190 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2191 }
2192 else {
2193 /* no error, set the tex image parameters */
2194 _mesa_init_teximage_fields(ctx, target, texImage,
2195 postConvWidth, postConvHeight, 1,
2196 border, internalFormat);
2197 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2198 internalFormat, format, type);
2199 }
2200 }
2201 else {
2202 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2203 return;
2204 }
2205 }
2206
2207
2208 /*
2209 * Called by the API or display list executor.
2210 * Note that width and height include the border.
2211 */
2212 void GLAPIENTRY
2213 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2214 GLsizei width, GLsizei height, GLsizei depth,
2215 GLint border, GLenum format, GLenum type,
2216 const GLvoid *pixels )
2217 {
2218 GET_CURRENT_CONTEXT(ctx);
2219 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2220
2221 if (target == GL_TEXTURE_3D) {
2222 struct gl_texture_unit *texUnit;
2223 struct gl_texture_object *texObj;
2224 struct gl_texture_image *texImage;
2225 /* non-proxy target */
2226
2227 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2228 format, type, 3, width, height, depth, border)) {
2229 return; /* error was recorded */
2230 }
2231
2232 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2233 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2234 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2235 if (!texImage) {
2236 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2237 return;
2238 }
2239 else if (texImage->Data) {
2240 ctx->Driver.FreeTexImageData( ctx, texImage );
2241 }
2242 ASSERT(texImage->Data == NULL);
2243 clear_teximage_fields(texImage); /* not really needed, but helpful */
2244 _mesa_init_teximage_fields(ctx, target, texImage,
2245 width, height, depth,
2246 border, internalFormat);
2247
2248 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2249 _mesa_update_state(ctx);
2250
2251 ASSERT(ctx->Driver.TexImage3D);
2252
2253 /* Give the texture to the driver! <pixels> may be null! */
2254 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2255 width, height, depth, border, format, type,
2256 pixels, &ctx->Unpack, texObj, texImage);
2257
2258 ASSERT(texImage->TexFormat);
2259
2260 /* If driver didn't explicitly set these, use the defaults */
2261 if (!texImage->FetchTexelc)
2262 texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
2263 if (!texImage->FetchTexelf)
2264 texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
2265 ASSERT(texImage->FetchTexelc);
2266 ASSERT(texImage->FetchTexelf);
2267
2268 /* state update */
2269 texObj->Complete = GL_FALSE;
2270 ctx->NewState |= _NEW_TEXTURE;
2271 }
2272 else if (target == GL_PROXY_TEXTURE_3D) {
2273 /* Proxy texture: check for errors and update proxy state */
2274 struct gl_texture_image *texImage;
2275 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2276 if (texture_error_check(ctx, target, level, internalFormat,
2277 format, type, 3, width, height, depth, border)) {
2278 /* when error, clear all proxy texture image parameters */
2279 if (texImage)
2280 clear_teximage_fields(texImage);
2281 }
2282 else {
2283 /* no error, set the tex image parameters */
2284 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2285 border, internalFormat);
2286 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2287 internalFormat, format, type);
2288 }
2289 }
2290 else {
2291 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2292 return;
2293 }
2294 }
2295
2296
2297 void GLAPIENTRY
2298 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2299 GLsizei width, GLsizei height, GLsizei depth,
2300 GLint border, GLenum format, GLenum type,
2301 const GLvoid *pixels )
2302 {
2303 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2304 depth, border, format, type, pixels);
2305 }
2306
2307
2308
2309 void GLAPIENTRY
2310 _mesa_TexSubImage1D( GLenum target, GLint level,
2311 GLint xoffset, GLsizei width,
2312 GLenum format, GLenum type,
2313 const GLvoid *pixels )
2314 {
2315 GLsizei postConvWidth = width;
2316 struct gl_texture_unit *texUnit;
2317 struct gl_texture_object *texObj;
2318 struct gl_texture_image *texImage;
2319 GET_CURRENT_CONTEXT(ctx);
2320 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2321
2322 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2323 _mesa_update_state(ctx);
2324
2325 /* XXX should test internal format */
2326 if (is_color_format(format)) {
2327 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2328 }
2329
2330 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2331 postConvWidth, 1, 1, format, type)) {
2332 return; /* error was detected */
2333 }
2334
2335 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2336 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2337 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2338 assert(texImage);
2339
2340 if (width == 0)
2341 return; /* no-op, not an error */
2342
2343 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2344 xoffset += texImage->Border;
2345
2346 ASSERT(ctx->Driver.TexSubImage1D);
2347 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2348 format, type, pixels, &ctx->Unpack,
2349 texObj, texImage);
2350 ctx->NewState |= _NEW_TEXTURE;
2351 }
2352
2353
2354 void GLAPIENTRY
2355 _mesa_TexSubImage2D( GLenum target, GLint level,
2356 GLint xoffset, GLint yoffset,
2357 GLsizei width, GLsizei height,
2358 GLenum format, GLenum type,
2359 const GLvoid *pixels )
2360 {
2361 GLsizei postConvWidth = width, postConvHeight = height;
2362 struct gl_texture_unit *texUnit;
2363 struct gl_texture_object *texObj;
2364 struct gl_texture_image *texImage;
2365 GET_CURRENT_CONTEXT(ctx);
2366 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2367
2368 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2369 _mesa_update_state(ctx);
2370
2371 /* XXX should test internal format */
2372 if (is_color_format(format)) {
2373 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2374 &postConvHeight);
2375 }
2376
2377 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2378 postConvWidth, postConvHeight, 1, format, type)) {
2379 return; /* error was detected */
2380 }
2381
2382 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2383 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2384 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2385 assert(texImage);
2386
2387 if (width == 0 || height == 0)
2388 return; /* no-op, not an error */
2389
2390 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2391 xoffset += texImage->Border;
2392 yoffset += texImage->Border;
2393
2394 ASSERT(ctx->Driver.TexSubImage2D);
2395 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2396 width, height, format, type, pixels,
2397 &ctx->Unpack, texObj, texImage);
2398 ctx->NewState |= _NEW_TEXTURE;
2399 }
2400
2401
2402
2403 void GLAPIENTRY
2404 _mesa_TexSubImage3D( GLenum target, GLint level,
2405 GLint xoffset, GLint yoffset, GLint zoffset,
2406 GLsizei width, GLsizei height, GLsizei depth,
2407 GLenum format, GLenum type,
2408 const GLvoid *pixels )
2409 {
2410 struct gl_texture_unit *texUnit;
2411 struct gl_texture_object *texObj;
2412 struct gl_texture_image *texImage;
2413 GET_CURRENT_CONTEXT(ctx);
2414 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2415
2416 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2417 _mesa_update_state(ctx);
2418
2419 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2420 width, height, depth, format, type)) {
2421 return; /* error was detected */
2422 }
2423
2424 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2425 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2426 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2427 assert(texImage);
2428
2429 if (width == 0 || height == 0 || height == 0)
2430 return; /* no-op, not an error */
2431
2432 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2433 xoffset += texImage->Border;
2434 yoffset += texImage->Border;
2435 zoffset += texImage->Border;
2436
2437 ASSERT(ctx->Driver.TexSubImage3D);
2438 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2439 xoffset, yoffset, zoffset,
2440 width, height, depth,
2441 format, type, pixels,
2442 &ctx->Unpack, texObj, texImage );
2443 ctx->NewState |= _NEW_TEXTURE;
2444 }
2445
2446
2447
2448 void GLAPIENTRY
2449 _mesa_CopyTexImage1D( GLenum target, GLint level,
2450 GLenum internalFormat,
2451 GLint x, GLint y,
2452 GLsizei width, GLint border )
2453 {
2454 struct gl_texture_unit *texUnit;
2455 struct gl_texture_object *texObj;
2456 struct gl_texture_image *texImage;
2457 GLsizei postConvWidth = width;
2458 GET_CURRENT_CONTEXT(ctx);
2459 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2460
2461 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2462 _mesa_update_state(ctx);
2463
2464 if (is_color_format(internalFormat)) {
2465 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2466 }
2467
2468 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2469 postConvWidth, 1, border))
2470 return;
2471
2472 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2473 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2474 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2475 if (!texImage) {
2476 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2477 return;
2478 }
2479 else if (texImage->Data) {
2480 ctx->Driver.FreeTexImageData( ctx, texImage );
2481 }
2482 ASSERT(texImage->Data == NULL);
2483
2484 clear_teximage_fields(texImage); /* not really needed, but helpful */
2485 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2486 border, internalFormat);
2487
2488
2489 ASSERT(ctx->Driver.CopyTexImage1D);
2490 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2491 x, y, width, border);
2492
2493 ASSERT(texImage->TexFormat);
2494
2495 /* If driver didn't explicitly set these, use the defaults */
2496 if (!texImage->FetchTexelc)
2497 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2498 if (!texImage->FetchTexelf)
2499 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2500 ASSERT(texImage->FetchTexelc);
2501 ASSERT(texImage->FetchTexelf);
2502
2503 /* state update */
2504 texObj->Complete = GL_FALSE;
2505 ctx->NewState |= _NEW_TEXTURE;
2506 }
2507
2508
2509
2510 void GLAPIENTRY
2511 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2512 GLint x, GLint y, GLsizei width, GLsizei height,
2513 GLint border )
2514 {
2515 struct gl_texture_unit *texUnit;
2516 struct gl_texture_object *texObj;
2517 struct gl_texture_image *texImage;
2518 GLsizei postConvWidth = width, postConvHeight = height;
2519 GET_CURRENT_CONTEXT(ctx);
2520 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2521
2522 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2523 _mesa_update_state(ctx);
2524
2525 if (is_color_format(internalFormat)) {
2526 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2527 &postConvHeight);
2528 }
2529
2530 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2531 postConvWidth, postConvHeight, border))
2532 return;
2533
2534 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2535 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2536 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2537 if (!texImage) {
2538 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2539 return;
2540 }
2541 else if (texImage->Data) {
2542 ctx->Driver.FreeTexImageData( ctx, texImage );
2543 }
2544 ASSERT(texImage->Data == NULL);
2545
2546 clear_teximage_fields(texImage); /* not really needed, but helpful */
2547 _mesa_init_teximage_fields(ctx, target, texImage,
2548 postConvWidth, postConvHeight, 1,
2549 border, internalFormat);
2550
2551 ASSERT(ctx->Driver.CopyTexImage2D);
2552 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
2553 x, y, width, height, border);
2554
2555 ASSERT(texImage->TexFormat);
2556
2557 /* If driver didn't explicitly set these, use the defaults */
2558 if (!texImage->FetchTexelc)
2559 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2560 if (!texImage->FetchTexelf)
2561 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2562 ASSERT(texImage->FetchTexelc);
2563 ASSERT(texImage->FetchTexelf);
2564
2565 /* state update */
2566 texObj->Complete = GL_FALSE;
2567 ctx->NewState |= _NEW_TEXTURE;
2568 }
2569
2570
2571
2572 void GLAPIENTRY
2573 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2574 GLint xoffset, GLint x, GLint y, GLsizei width )
2575 {
2576 struct gl_texture_unit *texUnit;
2577 struct gl_texture_image *texImage;
2578 GLsizei postConvWidth = width;
2579 GET_CURRENT_CONTEXT(ctx);
2580 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2581
2582 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2583 _mesa_update_state(ctx);
2584
2585 /* XXX should test internal format */
2586 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2587
2588 if (copytexsubimage_error_check(ctx, 1, target, level,
2589 xoffset, 0, 0, postConvWidth, 1))
2590 return;
2591
2592 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2593 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2594 ASSERT(texImage);
2595
2596 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2597 xoffset += texImage->Border;
2598
2599 ASSERT(ctx->Driver.CopyTexSubImage1D);
2600 (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
2601 ctx->NewState |= _NEW_TEXTURE;
2602 }
2603
2604
2605
2606 void GLAPIENTRY
2607 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2608 GLint xoffset, GLint yoffset,
2609 GLint x, GLint y, GLsizei width, GLsizei height )
2610 {
2611 struct gl_texture_unit *texUnit;
2612 struct gl_texture_image *texImage;
2613 GLsizei postConvWidth = width, postConvHeight = height;
2614 GET_CURRENT_CONTEXT(ctx);
2615 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2616
2617 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2618 _mesa_update_state(ctx);
2619
2620 /* XXX should test internal format */
2621 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2622
2623 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2624 postConvWidth, postConvHeight))
2625 return;
2626
2627 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2628 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2629 ASSERT(texImage);
2630
2631 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2632 xoffset += texImage->Border;
2633 yoffset += texImage->Border;
2634
2635 ASSERT(ctx->Driver.CopyTexSubImage2D);
2636 (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
2637 xoffset, yoffset, x, y, width, height);
2638 ctx->NewState |= _NEW_TEXTURE;
2639 }
2640
2641
2642
2643 void GLAPIENTRY
2644 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2645 GLint xoffset, GLint yoffset, GLint zoffset,
2646 GLint x, GLint y, GLsizei width, GLsizei height )
2647 {
2648 struct gl_texture_unit *texUnit;
2649 struct gl_texture_image *texImage;
2650 GLsizei postConvWidth = width, postConvHeight = height;
2651 GET_CURRENT_CONTEXT(ctx);
2652 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2653
2654 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2655 _mesa_update_state(ctx);
2656
2657 /* XXX should test internal format */
2658 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2659
2660 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
2661 zoffset, postConvWidth, postConvHeight))
2662 return;
2663
2664 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2665 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2666 ASSERT(texImage);
2667
2668 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2669 xoffset += texImage->Border;
2670 yoffset += texImage->Border;
2671 zoffset += texImage->Border;
2672
2673 ASSERT(ctx->Driver.CopyTexSubImage3D);
2674 (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
2675 xoffset, yoffset, zoffset,
2676 x, y, width, height);
2677 ctx->NewState |= _NEW_TEXTURE;
2678 }
2679
2680
2681
2682
2683 /**********************************************************************/
2684 /****** Compressed Textures ******/
2685 /**********************************************************************/
2686
2687
2688 /**
2689 * Error checking for glCompressedTexImage[123]D().
2690 * \return error code or GL_NO_ERROR.
2691 */
2692 static GLenum
2693 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
2694 GLenum target, GLint level,
2695 GLenum internalFormat, GLsizei width,
2696 GLsizei height, GLsizei depth, GLint border,
2697 GLsizei imageSize)
2698 {
2699 GLint expectedSize, maxLevels = 0, maxTextureSize;
2700
2701 if (dimensions == 1) {
2702 /* 1D compressed textures not allowed */
2703 return GL_INVALID_ENUM;
2704 }
2705 else if (dimensions == 2) {
2706 if (target == GL_PROXY_TEXTURE_2D) {
2707 maxLevels = ctx->Const.MaxTextureLevels;
2708 }
2709 else if (target == GL_TEXTURE_2D) {
2710 maxLevels = ctx->Const.MaxTextureLevels;
2711 }
2712 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2713 if (!ctx->Extensions.ARB_texture_cube_map)
2714 return GL_INVALID_ENUM; /*target*/
2715 maxLevels = ctx->Const.MaxCubeTextureLevels;
2716 }
2717 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2718 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2719 if (!ctx->Extensions.ARB_texture_cube_map)
2720 return GL_INVALID_ENUM; /*target*/
2721 maxLevels = ctx->Const.MaxCubeTextureLevels;
2722 }
2723 else {
2724 return GL_INVALID_ENUM; /*target*/
2725 }
2726 }
2727 else if (dimensions == 3) {
2728 /* 3D compressed textures not allowed */
2729 return GL_INVALID_ENUM;
2730 }
2731
2732 maxTextureSize = 1 << (maxLevels - 1);
2733
2734 if (!is_compressed_format(ctx, internalFormat))
2735 return GL_INVALID_ENUM;
2736
2737 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
2738 return GL_INVALID_ENUM;
2739
2740 if (border != 0)
2741 return GL_INVALID_VALUE;
2742
2743 /*
2744 * XXX We should probably use the proxy texture error check function here.
2745 */
2746 if (width < 1 || width > maxTextureSize ||
2747 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
2748 return GL_INVALID_VALUE;
2749
2750 if ((height < 1 || height > maxTextureSize ||
2751 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
2752 && dimensions > 1)
2753 return GL_INVALID_VALUE;
2754
2755 if ((depth < 1 || depth > maxTextureSize ||
2756 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
2757 && dimensions > 2)
2758 return GL_INVALID_VALUE;
2759
2760 /* For cube map, width must equal height */
2761 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2762 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
2763 return GL_INVALID_VALUE;
2764
2765 if (level < 0 || level >= maxLevels)
2766 return GL_INVALID_VALUE;
2767
2768 expectedSize = ctx->Driver.CompressedTextureSize(ctx, width, height, depth,
2769 internalFormat);
2770 if (expectedSize != imageSize)
2771 return GL_INVALID_VALUE;
2772
2773 return GL_NO_ERROR;
2774 }
2775
2776
2777 /**
2778 * Error checking for glCompressedTexSubImage[123]D().
2779 * \warning There are some bad assumptions here about the size of compressed
2780 * texture tiles (multiple of 4) used to test the validity of the
2781 * offset and size parameters.
2782 * \return error code or GL_NO_ERROR.
2783 */
2784 static GLenum
2785 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
2786 GLenum target, GLint level,
2787 GLint xoffset, GLint yoffset, GLint zoffset,
2788 GLsizei width, GLsizei height, GLsizei depth,
2789 GLenum format, GLsizei imageSize)
2790 {
2791 GLint expectedSize, maxLevels = 0, maxTextureSize;
2792 (void) zoffset;
2793
2794 if (dimensions == 1) {
2795 /* 1D compressed textures not allowed */
2796 return GL_INVALID_ENUM;
2797 }
2798 else if (dimensions == 2) {
2799 if (target == GL_PROXY_TEXTURE_2D) {
2800 maxLevels = ctx->Const.MaxTextureLevels;
2801 }
2802 else if (target == GL_TEXTURE_2D) {
2803 maxLevels = ctx->Const.MaxTextureLevels;
2804 }
2805 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2806 if (!ctx->Extensions.ARB_texture_cube_map)
2807 return GL_INVALID_ENUM; /*target*/
2808 maxLevels = ctx->Const.MaxCubeTextureLevels;
2809 }
2810 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2811 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2812 if (!ctx->Extensions.ARB_texture_cube_map)
2813 return GL_INVALID_ENUM; /*target*/
2814 maxLevels = ctx->Const.MaxCubeTextureLevels;
2815 }
2816 else {
2817 return GL_INVALID_ENUM; /*target*/
2818 }
2819 }
2820 else if (dimensions == 3) {
2821 /* 3D compressed textures not allowed */
2822 return GL_INVALID_ENUM;
2823 }
2824
2825 maxTextureSize = 1 << (maxLevels - 1);
2826
2827 if (!is_compressed_format(ctx, format))
2828 return GL_INVALID_ENUM;
2829
2830 if (width < 1 || width > maxTextureSize)
2831 return GL_INVALID_VALUE;
2832
2833 if ((height < 1 || height > maxTextureSize)
2834 && dimensions > 1)
2835 return GL_INVALID_VALUE;
2836
2837 if (level < 0 || level >= maxLevels)
2838 return GL_INVALID_VALUE;
2839
2840 /* XXX these tests are specific to the compressed format.
2841 * this code should be generalized in some way.
2842 */
2843 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
2844 return GL_INVALID_VALUE;
2845
2846 if ((width & 3) != 0 && width != 2 && width != 1)
2847 return GL_INVALID_VALUE;
2848
2849 if ((height & 3) != 0 && height != 2 && height != 1)
2850 return GL_INVALID_VALUE;
2851
2852 expectedSize = ctx->Driver.CompressedTextureSize(ctx, width, height, depth,
2853 format);
2854 if (expectedSize != imageSize)
2855 return GL_INVALID_VALUE;
2856
2857 return GL_NO_ERROR;
2858 }
2859
2860
2861
2862 void GLAPIENTRY
2863 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
2864 GLenum internalFormat, GLsizei width,
2865 GLint border, GLsizei imageSize,
2866 const GLvoid *data)
2867 {
2868 GET_CURRENT_CONTEXT(ctx);
2869 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2870
2871 if (target == GL_TEXTURE_1D) {
2872 /* non-proxy target */
2873 struct gl_texture_unit *texUnit;
2874 struct gl_texture_object *texObj;
2875 struct gl_texture_image *texImage;
2876 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2877 internalFormat, width, 1, 1, border, imageSize);
2878 if (error) {
2879 _mesa_error(ctx, error, "glCompressedTexImage1D");
2880 return;
2881 }
2882
2883 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2884 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2885 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2886 if (!texImage) {
2887 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
2888 return;
2889 }
2890 else if (texImage->Data) {
2891 ctx->Driver.FreeTexImageData( ctx, texImage );
2892 }
2893 ASSERT(texImage->Data == NULL);
2894
2895 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2896 border, internalFormat);
2897
2898 ASSERT(ctx->Driver.CompressedTexImage1D);
2899 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
2900 internalFormat, width, border,
2901 imageSize, data,
2902 texObj, texImage);
2903
2904 /* state update */
2905 texObj->Complete = GL_FALSE;
2906 ctx->NewState |= _NEW_TEXTURE;
2907 }
2908 else if (target == GL_PROXY_TEXTURE_1D) {
2909 /* Proxy texture: check for errors and update proxy state */
2910 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2911 internalFormat, width, 1, 1, border, imageSize);
2912 if (!error) {
2913 ASSERT(ctx->Driver.TestProxyTexImage);
2914 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
2915 internalFormat, GL_NONE, GL_NONE,
2916 width, 1, 1, border);
2917 }
2918 if (error) {
2919 /* if error, clear all proxy texture image parameters */
2920 struct gl_texture_image *texImage;
2921 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2922 if (texImage)
2923 clear_teximage_fields(texImage);
2924 }
2925 else {
2926 /* store the teximage parameters */
2927 struct gl_texture_unit *texUnit;
2928 struct gl_texture_image *texImage;
2929 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2930 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2931 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2932 border, internalFormat);
2933 }
2934 }
2935 else {
2936 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
2937 return;
2938 }
2939 }
2940
2941
2942 void GLAPIENTRY
2943 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
2944 GLenum internalFormat, GLsizei width,
2945 GLsizei height, GLint border, GLsizei imageSize,
2946 const GLvoid *data)
2947 {
2948 GET_CURRENT_CONTEXT(ctx);
2949 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2950
2951 if (target == GL_TEXTURE_2D ||
2952 (ctx->Extensions.ARB_texture_cube_map &&
2953 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2954 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
2955 /* non-proxy target */
2956 struct gl_texture_unit *texUnit;
2957 struct gl_texture_object *texObj;
2958 struct gl_texture_image *texImage;
2959 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2960 internalFormat, width, height, 1, border, imageSize);
2961 if (error) {
2962 _mesa_error(ctx, error, "glCompressedTexImage2D");
2963 return;
2964 }
2965
2966 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2967 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2968 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2969 if (!texImage) {
2970 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
2971 return;
2972 }
2973 else if (texImage->Data) {
2974 ctx->Driver.FreeTexImageData( ctx, texImage );
2975 }
2976 ASSERT(texImage->Data == NULL);
2977
2978 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2979 border, internalFormat);
2980
2981 ASSERT(ctx->Driver.CompressedTexImage2D);
2982 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
2983 internalFormat, width, height,
2984 border, imageSize, data,
2985 texObj, texImage);
2986
2987 /* state update */
2988 texObj->Complete = GL_FALSE;
2989 ctx->NewState |= _NEW_TEXTURE;
2990 }
2991 else if (target == GL_PROXY_TEXTURE_2D ||
2992 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2993 ctx->Extensions.ARB_texture_cube_map)) {
2994 /* Proxy texture: check for errors and update proxy state */
2995 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2996 internalFormat, width, height, 1, border, imageSize);
2997 if (!error) {
2998 ASSERT(ctx->Driver.TestProxyTexImage);
2999 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3000 internalFormat, GL_NONE, GL_NONE,
3001 width, height, 1, border);
3002 }
3003 if (error) {
3004 /* if error, clear all proxy texture image parameters */
3005 struct gl_texture_image *texImage;
3006 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3007 if (texImage)
3008 clear_teximage_fields(texImage);
3009 }
3010 else {
3011 /* store the teximage parameters */
3012 struct gl_texture_unit *texUnit;
3013 struct gl_texture_image *texImage;
3014 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3015 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3016 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3017 border, internalFormat);
3018 }
3019 }
3020 else {
3021 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3022 return;
3023 }
3024 }
3025
3026
3027 void GLAPIENTRY
3028 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3029 GLenum internalFormat, GLsizei width,
3030 GLsizei height, GLsizei depth, GLint border,
3031 GLsizei imageSize, const GLvoid *data)
3032 {
3033 GET_CURRENT_CONTEXT(ctx);
3034 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3035
3036 if (target == GL_TEXTURE_3D) {
3037 /* non-proxy target */
3038 struct gl_texture_unit *texUnit;
3039 struct gl_texture_object *texObj;
3040 struct gl_texture_image *texImage;
3041 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3042 internalFormat, width, height, depth, border, imageSize);
3043 if (error) {
3044 _mesa_error(ctx, error, "glCompressedTexImage3D");
3045 return;
3046 }
3047
3048 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3049 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3050 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
3051 if (!texImage) {
3052 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3053 return;
3054 }
3055 else if (texImage->Data) {
3056 ctx->Driver.FreeTexImageData( ctx, texImage );
3057 }
3058 ASSERT(texImage->Data == NULL);
3059
3060 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3061 border, internalFormat);
3062
3063 ASSERT(ctx->Driver.CompressedTexImage3D);
3064 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3065 internalFormat,
3066 width, height, depth,
3067 border, imageSize, data,
3068 texObj, texImage);
3069
3070 /* state update */
3071 texObj->Complete = GL_FALSE;
3072 ctx->NewState |= _NEW_TEXTURE;
3073 }
3074 else if (target == GL_PROXY_TEXTURE_3D) {
3075 /* Proxy texture: check for errors and update proxy state */
3076 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3077 internalFormat, width, height, depth, border, imageSize);
3078 if (!error) {
3079 ASSERT(ctx->Driver.TestProxyTexImage);
3080 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3081 internalFormat, GL_NONE, GL_NONE,
3082 width, height, depth, border);
3083 }
3084 if (error) {
3085 /* if error, clear all proxy texture image parameters */
3086 struct gl_texture_image *texImage;
3087 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3088 if (texImage)
3089 clear_teximage_fields(texImage);
3090 }
3091 else {
3092 /* store the teximage parameters */
3093 struct gl_texture_unit *texUnit;
3094 struct gl_texture_image *texImage;
3095 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3096 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3097 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3098 depth, border, internalFormat);
3099 }
3100 }
3101 else {
3102 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3103 return;
3104 }
3105 }
3106
3107
3108 void GLAPIENTRY
3109 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3110 GLsizei width, GLenum format,
3111 GLsizei imageSize, const GLvoid *data)
3112 {
3113 struct gl_texture_unit *texUnit;
3114 struct gl_texture_object *texObj;
3115 struct gl_texture_image *texImage;
3116 GLenum error;
3117 GET_CURRENT_CONTEXT(ctx);
3118 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3119
3120 error = compressed_subtexture_error_check(ctx, 1, target, level,
3121 xoffset, 0, 0, width, 1, 1, format, imageSize);
3122 if (error) {
3123 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3124 return;
3125 }
3126
3127 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3128 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3129 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3130 assert(texImage);
3131
3132 if ((GLint) format != texImage->IntFormat) {
3133 _mesa_error(ctx, GL_INVALID_OPERATION,
3134 "glCompressedTexSubImage1D(format)");
3135 return;
3136 }
3137
3138 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3139 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3140 return;
3141 }
3142
3143 if (width == 0)
3144 return; /* no-op, not an error */
3145
3146 if (ctx->Driver.CompressedTexSubImage1D) {
3147 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3148 xoffset, width,
3149 format, imageSize, data,
3150 texObj, texImage);
3151 }
3152 ctx->NewState |= _NEW_TEXTURE;
3153 }
3154
3155
3156 void GLAPIENTRY
3157 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3158 GLint yoffset, GLsizei width, GLsizei height,
3159 GLenum format, GLsizei imageSize,
3160 const GLvoid *data)
3161 {
3162 struct gl_texture_unit *texUnit;
3163 struct gl_texture_object *texObj;
3164 struct gl_texture_image *texImage;
3165 GLenum error;
3166 GET_CURRENT_CONTEXT(ctx);
3167 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3168
3169 error = compressed_subtexture_error_check(ctx, 2, target, level,
3170 xoffset, yoffset, 0, width, height, 1, format, imageSize);
3171 if (error) {
3172 /* XXX proxy target? */
3173 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3174 return;
3175 }
3176
3177 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3178 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3179 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3180 assert(texImage);
3181
3182 if ((GLint) format != texImage->IntFormat) {
3183 _mesa_error(ctx, GL_INVALID_OPERATION,
3184 "glCompressedTexSubImage2D(format)");
3185 return;
3186 }
3187
3188 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3189 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3190 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3191 return;
3192 }
3193
3194 if (width == 0 || height == 0)
3195 return; /* no-op, not an error */
3196
3197 if (ctx->Driver.CompressedTexSubImage2D) {
3198 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3199 xoffset, yoffset, width, height,
3200 format, imageSize, data,
3201 texObj, texImage);
3202 }
3203 ctx->NewState |= _NEW_TEXTURE;
3204 }
3205
3206
3207 void GLAPIENTRY
3208 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3209 GLint yoffset, GLint zoffset, GLsizei width,
3210 GLsizei height, GLsizei depth, GLenum format,
3211 GLsizei imageSize, const GLvoid *data)
3212 {
3213 struct gl_texture_unit *texUnit;
3214 struct gl_texture_object *texObj;
3215 struct gl_texture_image *texImage;
3216 GLenum error;
3217 GET_CURRENT_CONTEXT(ctx);
3218 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3219
3220 error = compressed_subtexture_error_check(ctx, 3, target, level,
3221 xoffset, yoffset, zoffset, width, height, depth, format, imageSize);
3222 if (error) {
3223 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3224 return;
3225 }
3226
3227 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3228 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3229 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3230 assert(texImage);
3231
3232 if ((GLint) format != texImage->IntFormat) {
3233 _mesa_error(ctx, GL_INVALID_OPERATION,
3234 "glCompressedTexSubImage3D(format)");
3235 return;
3236 }
3237
3238 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3239 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3240 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3241 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3242 return;
3243 }
3244
3245 if (width == 0 || height == 0 || depth == 0)
3246 return; /* no-op, not an error */
3247
3248 if (ctx->Driver.CompressedTexSubImage3D) {
3249 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3250 xoffset, yoffset, zoffset,
3251 width, height, depth,
3252 format, imageSize, data,
3253 texObj, texImage);
3254 }
3255 ctx->NewState |= _NEW_TEXTURE;
3256 }
3257
3258
3259 void GLAPIENTRY
3260 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3261 {
3262 const struct gl_texture_unit *texUnit;
3263 const struct gl_texture_object *texObj;
3264 struct gl_texture_image *texImage;
3265 GLint maxLevels;
3266 GET_CURRENT_CONTEXT(ctx);
3267 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3268
3269 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3270 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3271 if (!texObj) {
3272 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3273 return;
3274 }
3275
3276 maxLevels = _mesa_max_texture_levels(ctx, target);
3277 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3278
3279 if (level < 0 || level >= maxLevels) {
3280 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3281 return;
3282 }
3283
3284 if (is_proxy_target(target)) {
3285 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3286 return;
3287 }
3288
3289 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3290 if (!texImage) {
3291 /* probably invalid mipmap level */
3292 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3293 return;
3294 }
3295
3296 if (!texImage->IsCompressed) {
3297 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
3298 return;
3299 }
3300
3301 /* this typically calls _mesa_get_compressed_teximage() */
3302 ctx->Driver.GetCompressedTexImage(ctx, target, level, img, texObj,texImage);
3303 }