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1b889292f8ec8d054c94ff2e37e82ee855fff4b0
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.1
4 *
5 * Copyright (C) 1999-2004 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file teximage.c
28 * Texture images manipulation functions.
29 *
30 * \note Mesa's native texture data type is GLchan. Native formats are
31 * GL_ALPHA, GL_LUMINANCE, GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, GL_RGBA, and
32 * GL_COLOR_INDEX.
33 *
34 * \note Device drivers are free to implement any internal format they want.
35 */
36
37
38 #include "glheader.h"
39 #include "context.h"
40 #include "convolve.h"
41 #include "image.h"
42 #include "imports.h"
43 #include "macros.h"
44 #include "state.h"
45 #include "texcompress.h"
46 #include "texformat.h"
47 #include "teximage.h"
48 #include "texstate.h"
49 #include "texstore.h"
50 #include "mtypes.h"
51
52
53 #if 0
54 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
55 {
56 #if CHAN_TYPE == GL_FLOAT
57 _mesa_problem(NULL, "PrintTexture doesn't support float channels");
58 #else
59 GLuint i, j, c;
60 const GLchan *data = (const GLchan *) img->Data;
61
62 if (!data) {
63 _mesa_printf("No texture data\n");
64 return;
65 }
66
67 switch (img->Format) {
68 case GL_ALPHA:
69 case GL_LUMINANCE:
70 case GL_INTENSITY:
71 case GL_COLOR_INDEX:
72 c = 1;
73 break;
74 case GL_LUMINANCE_ALPHA:
75 c = 2;
76 break;
77 case GL_RGB:
78 c = 3;
79 break;
80 case GL_RGBA:
81 c = 4;
82 break;
83 default:
84 _mesa_problem(NULL, "error in PrintTexture\n");
85 return;
86 }
87
88 for (i = 0; i < img->Height; i++) {
89 for (j = 0; j < img->Width; j++) {
90 if (c==1)
91 _mesa_printf("%02x ", data[0]);
92 else if (c==2)
93 _mesa_printf("%02x%02x ", data[0], data[1]);
94 else if (c==3)
95 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
96 else if (c==4)
97 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
98 data += (img->RowStride - img->Width) * c;
99 }
100 _mesa_printf("\n");
101 }
102 #endif
103 }
104 #endif
105
106
107 /*
108 * Compute floor(log_base_2(n)).
109 * If n < 0 return -1.
110 */
111 static int
112 logbase2( int n )
113 {
114 GLint i = 1;
115 GLint log2 = 0;
116
117 if (n < 0)
118 return -1;
119
120 if (n == 0)
121 return 0;
122
123 while ( n > i ) {
124 i *= 2;
125 log2++;
126 }
127 if (i != n) {
128 return log2 - 1;
129 }
130 else {
131 return log2;
132 }
133 }
134
135
136
137 /**
138 * Return the simple base format for a given internal texture format.
139 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
140 *
141 * \param ctx GL context.
142 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
143 *
144 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
145 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
146 *
147 * This is the format which is used during texture application (i.e. the
148 * texture format and env mode determine the arithmetic used.
149 */
150 GLint
151 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
152 {
153 switch (internalFormat) {
154 case GL_ALPHA:
155 case GL_ALPHA4:
156 case GL_ALPHA8:
157 case GL_ALPHA12:
158 case GL_ALPHA16:
159 return GL_ALPHA;
160 case 1:
161 case GL_LUMINANCE:
162 case GL_LUMINANCE4:
163 case GL_LUMINANCE8:
164 case GL_LUMINANCE12:
165 case GL_LUMINANCE16:
166 return GL_LUMINANCE;
167 case 2:
168 case GL_LUMINANCE_ALPHA:
169 case GL_LUMINANCE4_ALPHA4:
170 case GL_LUMINANCE6_ALPHA2:
171 case GL_LUMINANCE8_ALPHA8:
172 case GL_LUMINANCE12_ALPHA4:
173 case GL_LUMINANCE12_ALPHA12:
174 case GL_LUMINANCE16_ALPHA16:
175 return GL_LUMINANCE_ALPHA;
176 case GL_INTENSITY:
177 case GL_INTENSITY4:
178 case GL_INTENSITY8:
179 case GL_INTENSITY12:
180 case GL_INTENSITY16:
181 return GL_INTENSITY;
182 case 3:
183 case GL_RGB:
184 case GL_R3_G3_B2:
185 case GL_RGB4:
186 case GL_RGB5:
187 case GL_RGB8:
188 case GL_RGB10:
189 case GL_RGB12:
190 case GL_RGB16:
191 return GL_RGB;
192 case 4:
193 case GL_RGBA:
194 case GL_RGBA2:
195 case GL_RGBA4:
196 case GL_RGB5_A1:
197 case GL_RGBA8:
198 case GL_RGB10_A2:
199 case GL_RGBA12:
200 case GL_RGBA16:
201 return GL_RGBA;
202 default:
203 ; /* fallthrough */
204 }
205
206 if (ctx->Extensions.EXT_paletted_texture) {
207 switch (internalFormat) {
208 case GL_COLOR_INDEX:
209 case GL_COLOR_INDEX1_EXT:
210 case GL_COLOR_INDEX2_EXT:
211 case GL_COLOR_INDEX4_EXT:
212 case GL_COLOR_INDEX8_EXT:
213 case GL_COLOR_INDEX12_EXT:
214 case GL_COLOR_INDEX16_EXT:
215 return GL_COLOR_INDEX;
216 default:
217 ; /* fallthrough */
218 }
219 }
220
221 if (ctx->Extensions.SGIX_depth_texture) {
222 switch (internalFormat) {
223 case GL_DEPTH_COMPONENT:
224 case GL_DEPTH_COMPONENT16_SGIX:
225 case GL_DEPTH_COMPONENT24_SGIX:
226 case GL_DEPTH_COMPONENT32_SGIX:
227 return GL_DEPTH_COMPONENT;
228 default:
229 ; /* fallthrough */
230 }
231 }
232
233 if (ctx->Extensions.ARB_texture_compression) {
234 switch (internalFormat) {
235 case GL_COMPRESSED_ALPHA:
236 return GL_ALPHA;
237 case GL_COMPRESSED_LUMINANCE:
238 return GL_LUMINANCE;
239 case GL_COMPRESSED_LUMINANCE_ALPHA:
240 return GL_LUMINANCE_ALPHA;
241 case GL_COMPRESSED_INTENSITY:
242 return GL_INTENSITY;
243 case GL_COMPRESSED_RGB:
244 return GL_RGB;
245 case GL_COMPRESSED_RGBA:
246 return GL_RGBA;
247 default:
248 ; /* fallthrough */
249 }
250 }
251
252 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
253 switch (internalFormat) {
254 case GL_COMPRESSED_RGB_FXT1_3DFX:
255 return GL_RGB;
256 case GL_COMPRESSED_RGBA_FXT1_3DFX:
257 return GL_RGBA;
258 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
259 return GL_RGB;
260 default:
261 ; /* fallthrough */
262 }
263 }
264
265 if (ctx->Extensions.EXT_texture_compression_s3tc) {
266 switch (internalFormat) {
267 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
268 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
269 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
270 return GL_RGBA;
271 default:
272 ; /* fallthrough */
273 }
274 }
275
276 if (ctx->Extensions.S3_s3tc) {
277 switch (internalFormat) {
278 case GL_RGB_S3TC:
279 case GL_RGB4_S3TC:
280 return GL_RGB;
281 case GL_RGBA_S3TC:
282 case GL_RGBA4_S3TC:
283 return GL_RGBA;
284 default:
285 ; /* fallthrough */
286 }
287 }
288
289 if (ctx->Extensions.MESA_ycbcr_texture) {
290 if (internalFormat == GL_YCBCR_MESA)
291 return GL_YCBCR_MESA;
292 }
293
294 if (ctx->Extensions.ARB_texture_float) {
295 switch (internalFormat) {
296 case GL_ALPHA16F_ARB:
297 case GL_ALPHA32F_ARB:
298 return GL_ALPHA;
299 case GL_RGBA16F_ARB:
300 case GL_RGBA32F_ARB:
301 return GL_RGBA;
302 case GL_RGB16F_ARB:
303 case GL_RGB32F_ARB:
304 return GL_RGB;
305 case GL_INTENSITY16F_ARB:
306 case GL_INTENSITY32F_ARB:
307 return GL_INTENSITY;
308 case GL_LUMINANCE16F_ARB:
309 case GL_LUMINANCE32F_ARB:
310 return GL_LUMINANCE;
311 case GL_LUMINANCE_ALPHA16F_ARB:
312 case GL_LUMINANCE_ALPHA32F_ARB:
313 return GL_LUMINANCE_ALPHA;
314 default:
315 ; /* nothing */
316 }
317 }
318
319 return -1; /* error */
320 }
321
322
323 /**
324 * Test if the given internal texture format is a color/RGBA format
325 * (i.e., not color index, depth, stencil, etc).
326 * \param internalFormat an internal texture format token (or 1, 2, 3, or 4)
327 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
328 */
329 static GLboolean
330 is_color_format(GLenum internalFormat)
331 {
332 switch (internalFormat) {
333 case GL_ALPHA:
334 case GL_ALPHA4:
335 case GL_ALPHA8:
336 case GL_ALPHA12:
337 case GL_ALPHA16:
338 case 1:
339 case GL_LUMINANCE:
340 case GL_LUMINANCE4:
341 case GL_LUMINANCE8:
342 case GL_LUMINANCE12:
343 case GL_LUMINANCE16:
344 case 2:
345 case GL_LUMINANCE_ALPHA:
346 case GL_LUMINANCE4_ALPHA4:
347 case GL_LUMINANCE6_ALPHA2:
348 case GL_LUMINANCE8_ALPHA8:
349 case GL_LUMINANCE12_ALPHA4:
350 case GL_LUMINANCE12_ALPHA12:
351 case GL_LUMINANCE16_ALPHA16:
352 case GL_INTENSITY:
353 case GL_INTENSITY4:
354 case GL_INTENSITY8:
355 case GL_INTENSITY12:
356 case GL_INTENSITY16:
357 case 3:
358 case GL_RGB:
359 case GL_R3_G3_B2:
360 case GL_RGB4:
361 case GL_RGB5:
362 case GL_RGB8:
363 case GL_RGB10:
364 case GL_RGB12:
365 case GL_RGB16:
366 case 4:
367 case GL_RGBA:
368 case GL_RGBA2:
369 case GL_RGBA4:
370 case GL_RGB5_A1:
371 case GL_RGBA8:
372 case GL_RGB10_A2:
373 case GL_RGBA12:
374 case GL_RGBA16:
375 /* float texture formats */
376 case GL_ALPHA16F_ARB:
377 case GL_ALPHA32F_ARB:
378 case GL_LUMINANCE16F_ARB:
379 case GL_LUMINANCE32F_ARB:
380 case GL_LUMINANCE_ALPHA16F_ARB:
381 case GL_LUMINANCE_ALPHA32F_ARB:
382 case GL_INTENSITY16F_ARB:
383 case GL_INTENSITY32F_ARB:
384 case GL_RGB16F_ARB:
385 case GL_RGB32F_ARB:
386 case GL_RGBA16F_ARB:
387 case GL_RGBA32F_ARB:
388 return GL_TRUE;
389 case GL_YCBCR_MESA: /* not considered to be RGB */
390 default:
391 return GL_FALSE;
392 }
393 }
394
395
396 /**
397 * Test if the given internal texture format is a color index format.
398 */
399 static GLboolean
400 is_index_format(GLenum internalFormat)
401 {
402 switch (internalFormat) {
403 case GL_COLOR_INDEX:
404 case GL_COLOR_INDEX1_EXT:
405 case GL_COLOR_INDEX2_EXT:
406 case GL_COLOR_INDEX4_EXT:
407 case GL_COLOR_INDEX8_EXT:
408 case GL_COLOR_INDEX12_EXT:
409 case GL_COLOR_INDEX16_EXT:
410 return GL_TRUE;
411 default:
412 return GL_FALSE;
413 }
414 }
415
416
417 /**
418 * Test if the given internal texture format is a depth component format.
419 */
420 static GLboolean
421 is_depth_format(GLenum internalFormat)
422 {
423 switch (internalFormat) {
424 case GL_DEPTH_COMPONENT16_ARB:
425 case GL_DEPTH_COMPONENT24_ARB:
426 case GL_DEPTH_COMPONENT32_ARB:
427 case GL_DEPTH_COMPONENT:
428 return GL_TRUE;
429 default:
430 return GL_FALSE;
431 }
432 }
433
434
435 /**
436 * Test if the given internal texture format is a YCbCr format.
437 */
438 static GLboolean
439 is_ycbcr_format(GLenum internalFormat)
440 {
441 switch (internalFormat) {
442 case GL_YCBCR_MESA:
443 return GL_TRUE;
444 default:
445 return GL_FALSE;
446 }
447 }
448
449
450 /**
451 * Test if it is a supported compressed format.
452 *
453 * \param internalFormat the internal format token provided by the user.
454 *
455 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
456 * GL_FALSE otherwise.
457 *
458 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
459 * are supported.
460 */
461 static GLboolean
462 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
463 {
464 switch (internalFormat) {
465 case GL_COMPRESSED_RGB_FXT1_3DFX:
466 case GL_COMPRESSED_RGBA_FXT1_3DFX:
467 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
468 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
469 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
471 case GL_RGB_S3TC:
472 case GL_RGB4_S3TC:
473 case GL_RGBA_S3TC:
474 case GL_RGBA4_S3TC:
475 return GL_TRUE;
476 default:
477 if (ctx->Driver.IsCompressedFormat) {
478 return ctx->Driver.IsCompressedFormat(ctx, internalFormat);
479 }
480 return GL_FALSE;
481 }
482 }
483
484
485 /**
486 * Store a gl_texture_image pointer in a gl_texture_object structure
487 * according to the target and level parameters.
488 *
489 * \param tObj texture object.
490 * \param target texture target.
491 * \param level image level.
492 * \param texImage texture image.
493 *
494 * This was basically prompted by the introduction of cube maps.
495 */
496 void
497 _mesa_set_tex_image(struct gl_texture_object *tObj,
498 GLenum target, GLint level,
499 struct gl_texture_image *texImage)
500 {
501 ASSERT(tObj);
502 ASSERT(texImage);
503 switch (target) {
504 case GL_TEXTURE_1D:
505 case GL_TEXTURE_2D:
506 case GL_TEXTURE_3D:
507 tObj->Image[0][level] = texImage;
508 return;
509 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
510 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
511 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
512 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
513 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
514 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB: {
515 GLuint face = ((GLuint) target -
516 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
517 tObj->Image[face][level] = texImage;
518 break;
519 }
520 case GL_TEXTURE_RECTANGLE_NV:
521 ASSERT(level == 0);
522 tObj->Image[0][level] = texImage;
523 return;
524 default:
525 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
526 return;
527 }
528 }
529
530
531 /**
532 * Allocate a texture image structure.
533 *
534 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
535 * driver.
536 *
537 * \return a pointer to gl_texture_image struct with all fields initialized to
538 * zero.
539 */
540 struct gl_texture_image *
541 _mesa_new_texture_image( GLcontext *ctx )
542 {
543 (void) ctx;
544 return CALLOC_STRUCT(gl_texture_image);
545 }
546
547
548 /**
549 * Free texture image.
550 *
551 * \param teximage texture image.
552 *
553 * Free the texture image structure and the associated image data if it's not
554 * marked as client data.
555 */
556 void
557 _mesa_delete_texture_image( struct gl_texture_image *teximage )
558 {
559 if (teximage->Data && !teximage->IsClientData) {
560 MESA_PBUFFER_FREE( teximage->Data );
561 teximage->Data = NULL;
562 }
563 FREE( teximage );
564 }
565
566
567 /**
568 * Test if a target is a proxy target.
569 *
570 * \param target texture target.
571 *
572 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
573 */
574 static GLboolean
575 is_proxy_target(GLenum target)
576 {
577 return (target == GL_PROXY_TEXTURE_1D ||
578 target == GL_PROXY_TEXTURE_2D ||
579 target == GL_PROXY_TEXTURE_3D ||
580 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
581 target == GL_PROXY_TEXTURE_RECTANGLE_NV);
582 }
583
584
585 /**
586 * Get the texture object that corresponds to the target of the given texture unit.
587 *
588 * \param ctx GL context.
589 * \param texUnit texture unit.
590 * \param target texture target.
591 *
592 * \return pointer to the texture object on success, or NULL on failure.
593 *
594 * \sa gl_texture_unit.
595 */
596 struct gl_texture_object *
597 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
598 GLenum target)
599 {
600 switch (target) {
601 case GL_TEXTURE_1D:
602 return texUnit->Current1D;
603 case GL_PROXY_TEXTURE_1D:
604 return ctx->Texture.Proxy1D;
605 case GL_TEXTURE_2D:
606 return texUnit->Current2D;
607 case GL_PROXY_TEXTURE_2D:
608 return ctx->Texture.Proxy2D;
609 case GL_TEXTURE_3D:
610 return texUnit->Current3D;
611 case GL_PROXY_TEXTURE_3D:
612 return ctx->Texture.Proxy3D;
613 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
614 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
615 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
616 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
617 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
618 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
619 case GL_TEXTURE_CUBE_MAP_ARB:
620 return ctx->Extensions.ARB_texture_cube_map
621 ? texUnit->CurrentCubeMap : NULL;
622 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
623 return ctx->Extensions.ARB_texture_cube_map
624 ? ctx->Texture.ProxyCubeMap : NULL;
625 case GL_TEXTURE_RECTANGLE_NV:
626 return ctx->Extensions.NV_texture_rectangle
627 ? texUnit->CurrentRect : NULL;
628 case GL_PROXY_TEXTURE_RECTANGLE_NV:
629 return ctx->Extensions.NV_texture_rectangle
630 ? ctx->Texture.ProxyRect : NULL;
631 default:
632 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
633 return NULL;
634 }
635 }
636
637
638 /**
639 * Get the texture image struct which corresponds to target and level
640 * of the given texture unit.
641 *
642 * \param ctx GL context.
643 * \param texUnit texture unit.
644 * \param target texture target.
645 * \param level image level.
646 *
647 * \return pointer to the texture image structure on success, or NULL on failure.
648 *
649 * \sa gl_texture_unit.
650 */
651 struct gl_texture_image *
652 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
653 GLenum target, GLint level)
654 {
655 ASSERT(texUnit);
656 ASSERT(level < MAX_TEXTURE_LEVELS);
657 switch (target) {
658 case GL_TEXTURE_1D:
659 return texUnit->Current1D->Image[0][level];
660 case GL_PROXY_TEXTURE_1D:
661 return ctx->Texture.Proxy1D->Image[0][level];
662 case GL_TEXTURE_2D:
663 return texUnit->Current2D->Image[0][level];
664 case GL_PROXY_TEXTURE_2D:
665 return ctx->Texture.Proxy2D->Image[0][level];
666 case GL_TEXTURE_3D:
667 return texUnit->Current3D->Image[0][level];
668 case GL_PROXY_TEXTURE_3D:
669 return ctx->Texture.Proxy3D->Image[0][level];
670 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
671 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
672 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
673 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
674 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
675 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
676 if (ctx->Extensions.ARB_texture_cube_map) {
677 GLuint face = ((GLuint) target -
678 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
679 return texUnit->CurrentCubeMap->Image[face][level];
680 }
681 else
682 return NULL;
683 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
684 if (ctx->Extensions.ARB_texture_cube_map)
685 return ctx->Texture.ProxyCubeMap->Image[0][level];
686 else
687 return NULL;
688 case GL_TEXTURE_RECTANGLE_NV:
689 if (ctx->Extensions.NV_texture_rectangle) {
690 ASSERT(level == 0);
691 return texUnit->CurrentRect->Image[0][level];
692 }
693 else {
694 return NULL;
695 }
696 case GL_PROXY_TEXTURE_RECTANGLE_NV:
697 if (ctx->Extensions.NV_texture_rectangle) {
698 ASSERT(level == 0);
699 return ctx->Texture.ProxyRect->Image[0][level];
700 }
701 else {
702 return NULL;
703 }
704 default:
705 _mesa_problem(ctx, "bad target in _mesa_select_tex_image()");
706 return NULL;
707 }
708 }
709
710
711 /**
712 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
713 * it and install it. Only return NULL if passed a bad parameter or run
714 * out of memory.
715 */
716 struct gl_texture_image *
717 _mesa_get_tex_image(GLcontext *ctx, const struct gl_texture_unit *texUnit,
718 GLenum target, GLint level)
719 {
720 struct gl_texture_image *texImage;
721 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
722 if (!texImage) {
723 struct gl_texture_object *texObj;
724 texImage = ctx->Driver.NewTextureImage(ctx);
725 if (!texImage) {
726 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
727 return NULL;
728 }
729 texObj = _mesa_select_tex_object(ctx, texUnit, target);
730 ASSERT(texObj);
731 _mesa_set_tex_image(texObj, target, level, texImage);
732 }
733 return texImage;
734 }
735
736
737 /**
738 * Return pointer to the specified proxy texture image.
739 * Note that proxy textures are per-context, not per-texture unit.
740 * \return pointer to texture image or NULL if invalid target, invalid
741 * level, or out of memory.
742 */
743 struct gl_texture_image *
744 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
745 {
746 struct gl_texture_image *texImage;
747
748 if (level < 0 )
749 return NULL;
750
751 switch (target) {
752 case GL_PROXY_TEXTURE_1D:
753 if (level >= ctx->Const.MaxTextureLevels)
754 return NULL;
755 texImage = ctx->Texture.Proxy1D->Image[0][level];
756 if (!texImage) {
757 texImage = ctx->Driver.NewTextureImage(ctx);
758 if (!texImage) {
759 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
760 return NULL;
761 }
762 ctx->Texture.Proxy1D->Image[0][level] = texImage;
763 }
764 return texImage;
765 case GL_PROXY_TEXTURE_2D:
766 if (level >= ctx->Const.MaxTextureLevels)
767 return NULL;
768 texImage = ctx->Texture.Proxy2D->Image[0][level];
769 if (!texImage) {
770 texImage = ctx->Driver.NewTextureImage(ctx);
771 if (!texImage) {
772 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
773 return NULL;
774 }
775 ctx->Texture.Proxy2D->Image[0][level] = texImage;
776 }
777 return texImage;
778 case GL_PROXY_TEXTURE_3D:
779 if (level >= ctx->Const.Max3DTextureLevels)
780 return NULL;
781 texImage = ctx->Texture.Proxy3D->Image[0][level];
782 if (!texImage) {
783 texImage = ctx->Driver.NewTextureImage(ctx);
784 if (!texImage) {
785 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
786 return NULL;
787 }
788 ctx->Texture.Proxy3D->Image[0][level] = texImage;
789 }
790 return texImage;
791 case GL_PROXY_TEXTURE_CUBE_MAP:
792 if (level >= ctx->Const.MaxCubeTextureLevels)
793 return NULL;
794 texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
795 if (!texImage) {
796 texImage = ctx->Driver.NewTextureImage(ctx);
797 if (!texImage) {
798 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
799 return NULL;
800 }
801 ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
802 }
803 return texImage;
804 case GL_PROXY_TEXTURE_RECTANGLE_NV:
805 if (level > 0)
806 return NULL;
807 texImage = ctx->Texture.ProxyRect->Image[0][level];
808 if (!texImage) {
809 texImage = ctx->Driver.NewTextureImage(ctx);
810 if (!texImage) {
811 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
812 return NULL;
813 }
814 ctx->Texture.ProxyRect->Image[0][level] = texImage;
815 }
816 return texImage;
817 default:
818 return NULL;
819 }
820 }
821
822
823 /**
824 * Get the maximum number of allowed mipmap levels.
825 *
826 * \param ctx GL context.
827 * \param target texture target.
828 *
829 * \return the maximum number of allowed mipmap levels for the given
830 * texture target, or zero if passed a bad target.
831 *
832 * \sa gl_constants.
833 */
834 GLint
835 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
836 {
837 switch (target) {
838 case GL_TEXTURE_1D:
839 case GL_PROXY_TEXTURE_1D:
840 case GL_TEXTURE_2D:
841 case GL_PROXY_TEXTURE_2D:
842 return ctx->Const.MaxTextureLevels;
843 case GL_TEXTURE_3D:
844 case GL_PROXY_TEXTURE_3D:
845 return ctx->Const.Max3DTextureLevels;
846 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
847 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
848 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
849 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
850 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
851 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
852 case GL_TEXTURE_CUBE_MAP_ARB:
853 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
854 return ctx->Const.MaxCubeTextureLevels;
855 break;
856 case GL_TEXTURE_RECTANGLE_NV:
857 case GL_PROXY_TEXTURE_RECTANGLE_NV:
858 return 1;
859 break;
860 default:
861 return 0; /* bad target */
862 }
863 }
864
865
866
867 #if 000 /* not used anymore */
868 /*
869 * glTexImage[123]D can accept a NULL image pointer. In this case we
870 * create a texture image with unspecified image contents per the OpenGL
871 * spec.
872 */
873 static GLubyte *
874 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
875 {
876 const GLint components = _mesa_components_in_format(format);
877 const GLint numPixels = width * height * depth;
878 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
879
880 #ifdef DEBUG
881 /*
882 * Let's see if anyone finds this. If glTexImage2D() is called with
883 * a NULL image pointer then load the texture image with something
884 * interesting instead of leaving it indeterminate.
885 */
886 if (data) {
887 static const char message[8][32] = {
888 " X X XXXXX XXX X ",
889 " XX XX X X X X X ",
890 " X X X X X X X ",
891 " X X XXXX XXX XXXXX ",
892 " X X X X X X ",
893 " X X X X X X X ",
894 " X X XXXXX XXX X X ",
895 " "
896 };
897
898 GLubyte *imgPtr = data;
899 GLint h, i, j, k;
900 for (h = 0; h < depth; h++) {
901 for (i = 0; i < height; i++) {
902 GLint srcRow = 7 - (i % 8);
903 for (j = 0; j < width; j++) {
904 GLint srcCol = j % 32;
905 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
906 for (k = 0; k < components; k++) {
907 *imgPtr++ = texel;
908 }
909 }
910 }
911 }
912 }
913 #endif
914
915 return data;
916 }
917 #endif
918
919
920
921 /**
922 * Reset the fields of a gl_texture_image struct to zero.
923 *
924 * \param img texture image structure.
925 *
926 * This is called when a proxy texture test fails, we set all the
927 * image members (except DriverData) to zero.
928 * It's also used in glTexImage[123]D as a safeguard to be sure all
929 * required fields get initialized properly by the Driver.TexImage[123]D
930 * functions.
931 */
932 static void
933 clear_teximage_fields(struct gl_texture_image *img)
934 {
935 ASSERT(img);
936 img->Format = 0;
937 img->IntFormat = 0;
938 img->Border = 0;
939 img->Width = 0;
940 img->Height = 0;
941 img->Depth = 0;
942 img->RowStride = 0;
943 img->Width2 = 0;
944 img->Height2 = 0;
945 img->Depth2 = 0;
946 img->WidthLog2 = 0;
947 img->HeightLog2 = 0;
948 img->DepthLog2 = 0;
949 img->Data = NULL;
950 img->TexFormat = &_mesa_null_texformat;
951 img->FetchTexelc = NULL;
952 img->FetchTexelf = NULL;
953 img->IsCompressed = 0;
954 img->CompressedSize = 0;
955 }
956
957
958 /**
959 * Initialize basic fields of the gl_texture_image struct.
960 *
961 * \param ctx GL context.
962 * \param target texture target.
963 * \param img texture image structure to be initialized.
964 * \param width image width.
965 * \param height image height.
966 * \param depth image depth.
967 * \param border image border.
968 * \param internalFormat internal format.
969 *
970 * Fills in the fields of \p img with the given information.
971 * Note: width, height and depth include the border.
972 */
973 void
974 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
975 struct gl_texture_image *img,
976 GLsizei width, GLsizei height, GLsizei depth,
977 GLint border, GLenum internalFormat)
978 {
979 ASSERT(img);
980 img->Format = _mesa_base_tex_format( ctx, internalFormat );
981 ASSERT(img->Format > 0);
982 img->IntFormat = internalFormat;
983 img->Border = border;
984 img->Width = width;
985 img->Height = height;
986 img->Depth = depth;
987 img->RowStride = width;
988 img->WidthLog2 = logbase2(width - 2 * border);
989 if (height == 1) /* 1-D texture */
990 img->HeightLog2 = 0;
991 else
992 img->HeightLog2 = logbase2(height - 2 * border);
993 if (depth == 1) /* 2-D texture */
994 img->DepthLog2 = 0;
995 else
996 img->DepthLog2 = logbase2(depth - 2 * border);
997 img->Width2 = width - 2 * border; /*1 << img->WidthLog2;*/
998 img->Height2 = height - 2 * border; /*1 << img->HeightLog2;*/
999 img->Depth2 = depth - 2 * border; /*1 << img->DepthLog2;*/
1000 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1001 img->IsCompressed = is_compressed_format(ctx, internalFormat);
1002 if (img->IsCompressed)
1003 img->CompressedSize = _mesa_compressed_texture_size(ctx, width, height,
1004 depth, internalFormat);
1005 else
1006 img->CompressedSize = 0;
1007
1008 if ((width == 1 || _mesa_bitcount(width - 2 * border) == 1) &&
1009 (height == 1 || _mesa_bitcount(height - 2 * border) == 1) &&
1010 (depth == 1 || _mesa_bitcount(depth - 2 * border) == 1))
1011 img->_IsPowerOfTwo = GL_TRUE;
1012 else
1013 img->_IsPowerOfTwo = GL_FALSE;
1014
1015 /* Compute Width/Height/DepthScale for mipmap lod computation */
1016 if (target == GL_TEXTURE_RECTANGLE_NV) {
1017 /* scale = 1.0 since texture coords directly map to texels */
1018 img->WidthScale = 1.0;
1019 img->HeightScale = 1.0;
1020 img->DepthScale = 1.0;
1021 }
1022 else {
1023 img->WidthScale = (GLfloat) img->Width;
1024 img->HeightScale = (GLfloat) img->Height;
1025 img->DepthScale = (GLfloat) img->Depth;
1026 }
1027 }
1028
1029
1030 /**
1031 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1032 * level, width, height and depth against the ctx->Const limits for textures.
1033 *
1034 * A hardware driver might override this function if, for example, the
1035 * max 3D texture size is 512x512x64 (i.e. not a cube).
1036 *
1037 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1038 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1039 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1040 * \param level as passed to glTexImage
1041 * \param internalFormat as passed to glTexImage
1042 * \param format as passed to glTexImage
1043 * \param type as passed to glTexImage
1044 * \param width as passed to glTexImage
1045 * \param height as passed to glTexImage
1046 * \param depth as passed to glTexImage
1047 * \param border as passed to glTexImage
1048 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1049 */
1050 GLboolean
1051 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1052 GLint internalFormat, GLenum format, GLenum type,
1053 GLint width, GLint height, GLint depth, GLint border)
1054 {
1055 GLint maxSize;
1056
1057 (void) internalFormat;
1058 (void) format;
1059 (void) type;
1060
1061 switch (target) {
1062 case GL_PROXY_TEXTURE_1D:
1063 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1064 if (width < 2 * border || width > 2 + maxSize ||
1065 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1066 _mesa_bitcount(width - 2 * border) != 1) ||
1067 level >= ctx->Const.MaxTextureLevels) {
1068 /* bad width or level */
1069 return GL_FALSE;
1070 }
1071 return GL_TRUE;
1072 case GL_PROXY_TEXTURE_2D:
1073 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1074 if (width < 2 * border || width > 2 + maxSize ||
1075 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1076 _mesa_bitcount(width - 2 * border) != 1) ||
1077 height < 2 * border || height > 2 + maxSize ||
1078 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1079 _mesa_bitcount(height - 2 * border) != 1) ||
1080 level >= ctx->Const.MaxTextureLevels) {
1081 /* bad width or height or level */
1082 return GL_FALSE;
1083 }
1084 return GL_TRUE;
1085 case GL_PROXY_TEXTURE_3D:
1086 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1087 if (width < 2 * border || width > 2 + maxSize ||
1088 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1089 _mesa_bitcount(width - 2 * border) != 1) ||
1090 height < 2 * border || height > 2 + maxSize ||
1091 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1092 _mesa_bitcount(height - 2 * border) != 1) ||
1093 depth < 2 * border || depth > 2 + maxSize ||
1094 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1095 _mesa_bitcount(depth - 2 * border) != 1) ||
1096 level >= ctx->Const.Max3DTextureLevels) {
1097 /* bad width or height or depth or level */
1098 return GL_FALSE;
1099 }
1100 return GL_TRUE;
1101 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1102 if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
1103 height < 1 || height > ctx->Const.MaxTextureRectSize ||
1104 level != 0) {
1105 /* bad width or height or level */
1106 return GL_FALSE;
1107 }
1108 return GL_TRUE;
1109 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1110 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1111 if (width < 2 * border || width > 2 + maxSize ||
1112 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1113 _mesa_bitcount(width - 2 * border) != 1) ||
1114 height < 2 * border || height > 2 + maxSize ||
1115 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1116 _mesa_bitcount(height - 2 * border) != 1) ||
1117 level >= ctx->Const.MaxCubeTextureLevels) {
1118 /* bad width or height */
1119 return GL_FALSE;
1120 }
1121 return GL_TRUE;
1122 default:
1123 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1124 return GL_FALSE;
1125 }
1126 }
1127
1128
1129 /**
1130 * Test the glTexImage[123]D() parameters for errors.
1131 *
1132 * \param ctx GL context.
1133 * \param target texture target given by the user.
1134 * \param level image level given by the user.
1135 * \param internalFormat internal format given by the user.
1136 * \param format pixel data format given by the user.
1137 * \param type pixel data type given by the user.
1138 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1139 * \param width image width given by the user.
1140 * \param height image height given by the user.
1141 * \param depth image depth given by the user.
1142 * \param border image border given by the user.
1143 *
1144 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1145 *
1146 * Verifies each of the parameters against the constants specified in
1147 * __GLcontextRec::Const and the supported extensions, and according to the
1148 * OpenGL specification.
1149 */
1150 static GLboolean
1151 texture_error_check( GLcontext *ctx, GLenum target,
1152 GLint level, GLint internalFormat,
1153 GLenum format, GLenum type,
1154 GLuint dimensions,
1155 GLint width, GLint height,
1156 GLint depth, GLint border )
1157 {
1158 const GLboolean isProxy = is_proxy_target(target);
1159 GLboolean sizeOK;
1160
1161 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1162 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1163 if (!isProxy) {
1164 _mesa_error(ctx, GL_INVALID_VALUE,
1165 "glTexImage%dD(level=%d)", dimensions, level);
1166 }
1167 return GL_TRUE;
1168 }
1169
1170 /* Check border */
1171 if (border < 0 || border > 1 ||
1172 ((target == GL_TEXTURE_RECTANGLE_NV ||
1173 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1174 if (!isProxy) {
1175 _mesa_error(ctx, GL_INVALID_VALUE,
1176 "glTexImage%dD(border=%d)", dimensions, border);
1177 }
1178 return GL_TRUE;
1179 }
1180
1181 if (width < 0 || height < 0 || depth < 0) {
1182 if (!isProxy) {
1183 _mesa_error(ctx, GL_INVALID_VALUE,
1184 "glTexImage%dD(width, height or depth < 0)", dimensions);
1185 }
1186 return GL_TRUE;
1187 }
1188
1189 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1190 * level, width, height and depth.
1191 */
1192 if (dimensions == 1) {
1193 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1194 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1195 level, internalFormat,
1196 format, type,
1197 width, 1, 1, border);
1198 }
1199 else {
1200 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1201 return GL_TRUE;
1202 }
1203 }
1204 else if (dimensions == 2) {
1205 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1206 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1207 level, internalFormat,
1208 format, type,
1209 width, height, 1, border);
1210 }
1211 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1212 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1213 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1214 if (!ctx->Extensions.ARB_texture_cube_map) {
1215 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1216 return GL_TRUE;
1217 }
1218 sizeOK = (width == height) &&
1219 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1220 level, internalFormat, format, type,
1221 width, height, 1, border);
1222 }
1223 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1224 target == GL_TEXTURE_RECTANGLE_NV) {
1225 if (!ctx->Extensions.NV_texture_rectangle) {
1226 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1227 return GL_TRUE;
1228 }
1229 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1230 GL_PROXY_TEXTURE_RECTANGLE_NV,
1231 level, internalFormat,
1232 format, type,
1233 width, height, 1, border);
1234 }
1235 else {
1236 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1237 return GL_TRUE;
1238 }
1239 }
1240 else if (dimensions == 3) {
1241 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1242 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_3D,
1243 level, internalFormat,
1244 format, type,
1245 width, height, depth, border);
1246 }
1247 else {
1248 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1249 return GL_TRUE;
1250 }
1251 }
1252 else {
1253 _mesa_problem( ctx, "bad dims in texture_error_check" );
1254 return GL_TRUE;
1255 }
1256
1257 if (!sizeOK) {
1258 if (!isProxy) {
1259 _mesa_error(ctx, GL_INVALID_VALUE,
1260 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1261 dimensions, level, width, height, depth);
1262 }
1263 return GL_TRUE;
1264 }
1265
1266 /* Check internalFormat */
1267 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1268 if (!isProxy) {
1269 _mesa_error(ctx, GL_INVALID_VALUE,
1270 "glTexImage%dD(internalFormat=0x%x)",
1271 dimensions, internalFormat);
1272 }
1273 return GL_TRUE;
1274 }
1275
1276 /* Check incoming image format and type */
1277 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1278 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1279 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1280 */
1281 if (!isProxy) {
1282 _mesa_error(ctx, GL_INVALID_OPERATION,
1283 "glTexImage%dD(format or type)", dimensions);
1284 }
1285 return GL_TRUE;
1286 }
1287
1288 if (format == GL_YCBCR_MESA || internalFormat == GL_YCBCR_MESA) {
1289 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1290 if (format != GL_YCBCR_MESA ||
1291 internalFormat != GL_YCBCR_MESA ||
1292 (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1293 type != GL_UNSIGNED_SHORT_8_8_REV_MESA)) {
1294 char message[100];
1295 _mesa_sprintf(message,
1296 "glTexImage%d(format/type/internalFormat YCBCR mismatch",
1297 dimensions);
1298 _mesa_error(ctx, GL_INVALID_ENUM, message);
1299 return GL_TRUE; /* error */
1300 }
1301 if (target != GL_TEXTURE_2D &&
1302 target != GL_PROXY_TEXTURE_2D &&
1303 target != GL_TEXTURE_RECTANGLE_NV &&
1304 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1305 if (!isProxy)
1306 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1307 return GL_TRUE;
1308 }
1309 if (border != 0) {
1310 if (!isProxy) {
1311 char message[100];
1312 _mesa_sprintf(message,
1313 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1314 dimensions, border);
1315 _mesa_error(ctx, GL_INVALID_VALUE, message);
1316 }
1317 return GL_TRUE;
1318 }
1319 }
1320
1321 if (is_compressed_format(ctx, internalFormat)) {
1322 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1323 /* OK */
1324 }
1325 else if (ctx->Extensions.ARB_texture_cube_map &&
1326 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1327 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1328 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1329 /* OK */
1330 }
1331 else {
1332 if (!isProxy) {
1333 _mesa_error(ctx, GL_INVALID_ENUM,
1334 "glTexImage%d(target)", dimensions);
1335 return GL_TRUE;
1336 }
1337 }
1338 if (border != 0) {
1339 if (!isProxy) {
1340 _mesa_error(ctx, GL_INVALID_OPERATION,
1341 "glTexImage%D(border!=0)", dimensions);
1342 }
1343 return GL_TRUE;
1344 }
1345 }
1346
1347 /* if we get here, the parameters are OK */
1348 return GL_FALSE;
1349 }
1350
1351
1352 /**
1353 * Test glTexSubImage[123]D() parameters for errors.
1354 *
1355 * \param ctx GL context.
1356 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1357 * \param target texture target given by the user.
1358 * \param level image level given by the user.
1359 * \param xoffset sub-image x offset given by the user.
1360 * \param yoffset sub-image y offset given by the user.
1361 * \param zoffset sub-image z offset given by the user.
1362 * \param format pixel data format given by the user.
1363 * \param type pixel data type given by the user.
1364 * \param width image width given by the user.
1365 * \param height image height given by the user.
1366 * \param depth image depth given by the user.
1367 *
1368 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1369 *
1370 * Verifies each of the parameters against the constants specified in
1371 * __GLcontextRec::Const and the supported extensions, and according to the
1372 * OpenGL specification.
1373 */
1374 static GLboolean
1375 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1376 GLenum target, GLint level,
1377 GLint xoffset, GLint yoffset, GLint zoffset,
1378 GLint width, GLint height, GLint depth,
1379 GLenum format, GLenum type )
1380 {
1381 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1382 struct gl_texture_image *destTex;
1383
1384 /* Check target */
1385 if (dimensions == 1) {
1386 if (target != GL_TEXTURE_1D) {
1387 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1388 return GL_TRUE;
1389 }
1390 }
1391 else if (dimensions == 2) {
1392 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1393 target <=GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1394 if (!ctx->Extensions.ARB_texture_cube_map) {
1395 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1396 return GL_TRUE;
1397 }
1398 }
1399 else if (ctx->Extensions.NV_texture_rectangle &&
1400 target == GL_TEXTURE_RECTANGLE_NV) {
1401 if (!ctx->Extensions.NV_texture_rectangle) {
1402 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1403 return GL_TRUE;
1404 }
1405 }
1406 else if (target != GL_TEXTURE_2D) {
1407 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1408 return GL_TRUE;
1409 }
1410 }
1411 else if (dimensions == 3) {
1412 if (target != GL_TEXTURE_3D) {
1413 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1414 return GL_TRUE;
1415 }
1416 }
1417 else {
1418 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1419 return GL_TRUE;
1420 }
1421
1422 /* Basic level check */
1423 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1424 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1425 return GL_TRUE;
1426 }
1427
1428 if (width < 0) {
1429 _mesa_error(ctx, GL_INVALID_VALUE,
1430 "glTexSubImage%dD(width=%d)", dimensions, width);
1431 return GL_TRUE;
1432 }
1433 if (height < 0 && dimensions > 1) {
1434 _mesa_error(ctx, GL_INVALID_VALUE,
1435 "glTexSubImage%dD(height=%d)", dimensions, height);
1436 return GL_TRUE;
1437 }
1438 if (depth < 0 && dimensions > 2) {
1439 _mesa_error(ctx, GL_INVALID_VALUE,
1440 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1441 return GL_TRUE;
1442 }
1443
1444 destTex = _mesa_select_tex_image(ctx, texUnit, target, level);
1445
1446 if (!destTex) {
1447 /* undefined image level */
1448 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1449 return GL_TRUE;
1450 }
1451
1452 if (xoffset < -((GLint)destTex->Border)) {
1453 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1454 dimensions);
1455 return GL_TRUE;
1456 }
1457 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1458 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1459 dimensions);
1460 return GL_TRUE;
1461 }
1462 if (dimensions > 1) {
1463 if (yoffset < -((GLint)destTex->Border)) {
1464 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1465 dimensions);
1466 return GL_TRUE;
1467 }
1468 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1469 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1470 dimensions);
1471 return GL_TRUE;
1472 }
1473 }
1474 if (dimensions > 2) {
1475 if (zoffset < -((GLint)destTex->Border)) {
1476 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1477 return GL_TRUE;
1478 }
1479 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1480 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1481 return GL_TRUE;
1482 }
1483 }
1484
1485 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1486 _mesa_error(ctx, GL_INVALID_ENUM,
1487 "glTexSubImage%dD(format or type)", dimensions);
1488 return GL_TRUE;
1489 }
1490
1491 if (destTex->IsCompressed) {
1492 const struct gl_texture_unit *texUnit;
1493 const struct gl_texture_image *texImage;
1494 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1495 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1496
1497 if (target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D) {
1498 /* OK */
1499 }
1500 else if (ctx->Extensions.ARB_texture_cube_map &&
1501 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1502 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1503 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))) {
1504 /* OK */
1505 }
1506 else {
1507 _mesa_error(ctx, GL_INVALID_ENUM,
1508 "glTexSubImage%D(target)", dimensions);
1509 return GL_TRUE;
1510 }
1511 /* offset must be multiple of 4 */
1512 if ((xoffset & 3) || (yoffset & 3)) {
1513 _mesa_error(ctx, GL_INVALID_OPERATION,
1514 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1515 return GL_TRUE;
1516 }
1517 /* size must be multiple of 4 or equal to whole texture size */
1518 if ((width & 3) && (GLuint) width != texImage->Width) {
1519 _mesa_error(ctx, GL_INVALID_OPERATION,
1520 "glTexSubImage%D(width)", dimensions);
1521 return GL_TRUE;
1522 }
1523 if ((height & 3) && (GLuint) height != texImage->Height) {
1524 _mesa_error(ctx, GL_INVALID_OPERATION,
1525 "glTexSubImage%D(width)", dimensions);
1526 return GL_TRUE;
1527 }
1528 }
1529
1530 return GL_FALSE;
1531 }
1532
1533
1534 /**
1535 * Test glCopyTexImage[12]D() parameters for errors.
1536 *
1537 * \param ctx GL context.
1538 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1539 * \param target texture target given by the user.
1540 * \param level image level given by the user.
1541 * \param internalFormat internal format given by the user.
1542 * \param width image width given by the user.
1543 * \param height image height given by the user.
1544 * \param depth image depth given by the user.
1545 * \param border texture border.
1546 *
1547 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1548 *
1549 * Verifies each of the parameters against the constants specified in
1550 * __GLcontextRec::Const and the supported extensions, and according to the
1551 * OpenGL specification.
1552 */
1553 static GLboolean
1554 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1555 GLenum target, GLint level, GLint internalFormat,
1556 GLint width, GLint height, GLint border )
1557 {
1558 GLenum format, type;
1559 GLboolean sizeOK;
1560
1561 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1562 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1563 _mesa_error(ctx, GL_INVALID_VALUE,
1564 "glCopyTexImage%dD(level=%d)", dimensions, level);
1565 return GL_TRUE;
1566 }
1567
1568 /* Check border */
1569 if (border < 0 || border > 1 ||
1570 ((target == GL_TEXTURE_RECTANGLE_NV ||
1571 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1572 return GL_TRUE;
1573 }
1574
1575 /* The format and type aren't really significant here, but we need to pass
1576 * something to TestProxyTexImage().
1577 */
1578 format = _mesa_base_tex_format(ctx, internalFormat);
1579 type = GL_FLOAT;
1580
1581 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1582 * level, width, height and depth.
1583 */
1584 if (dimensions == 1) {
1585 if (target == GL_TEXTURE_1D) {
1586 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1587 level, internalFormat,
1588 format, type,
1589 width, 1, 1, border);
1590 }
1591 else {
1592 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1593 return GL_TRUE;
1594 }
1595 }
1596 else if (dimensions == 2) {
1597 if (target == GL_TEXTURE_2D) {
1598 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1599 level, internalFormat,
1600 format, type,
1601 width, height, 1, border);
1602 }
1603 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1604 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1605 if (!ctx->Extensions.ARB_texture_cube_map) {
1606 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1607 return GL_TRUE;
1608 }
1609 sizeOK = (width == height) &&
1610 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1611 level, internalFormat, format, type,
1612 width, height, 1, border);
1613 }
1614 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1615 if (!ctx->Extensions.NV_texture_rectangle) {
1616 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1617 return GL_TRUE;
1618 }
1619 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1620 GL_PROXY_TEXTURE_RECTANGLE_NV,
1621 level, internalFormat,
1622 format, type,
1623 width, height, 1, border);
1624 }
1625 else {
1626 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1627 return GL_TRUE;
1628 }
1629 }
1630 else {
1631 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1632 return GL_TRUE;
1633 }
1634
1635 if (!sizeOK) {
1636 if (dimensions == 1) {
1637 _mesa_error(ctx, GL_INVALID_VALUE,
1638 "glCopyTexImage1D(width=%d)", width);
1639 }
1640 else {
1641 ASSERT(dimensions == 2);
1642 _mesa_error(ctx, GL_INVALID_VALUE,
1643 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1644 }
1645 return GL_TRUE;
1646 }
1647
1648 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1649 _mesa_error(ctx, GL_INVALID_VALUE,
1650 "glCopyTexImage%dD(internalFormat)", dimensions);
1651 return GL_TRUE;
1652 }
1653
1654 if (is_compressed_format(ctx, internalFormat)) {
1655 if (target != GL_TEXTURE_2D) {
1656 _mesa_error(ctx, GL_INVALID_ENUM,
1657 "glCopyTexImage%d(target)", dimensions);
1658 return GL_TRUE;
1659 }
1660 if (border != 0) {
1661 _mesa_error(ctx, GL_INVALID_OPERATION,
1662 "glCopyTexImage%D(border!=0)", dimensions);
1663 return GL_TRUE;
1664 }
1665 }
1666
1667 /* if we get here, the parameters are OK */
1668 return GL_FALSE;
1669 }
1670
1671
1672 /**
1673 * Test glCopyTexImage[12]D() parameters for errors.
1674 *
1675 * \param ctx GL context.
1676 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1677 * \param target texture target given by the user.
1678 * \param level image level given by the user.
1679 * \param xoffset sub-image x offset given by the user.
1680 * \param yoffset sub-image y offset given by the user.
1681 * \param zoffset sub-image z offset given by the user.
1682 * \param width image width given by the user.
1683 * \param height image height given by the user.
1684 *
1685 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1686 *
1687 * Verifies each of the parameters against the constants specified in
1688 * __GLcontextRec::Const and the supported extensions, and according to the
1689 * OpenGL specification.
1690 */
1691 static GLboolean
1692 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
1693 GLenum target, GLint level,
1694 GLint xoffset, GLint yoffset, GLint zoffset,
1695 GLsizei width, GLsizei height )
1696 {
1697 struct gl_texture_unit *texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
1698 struct gl_texture_image *teximage;
1699
1700 /* Check target */
1701 if (dimensions == 1) {
1702 if (target != GL_TEXTURE_1D) {
1703 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
1704 return GL_TRUE;
1705 }
1706 }
1707 else if (dimensions == 2) {
1708 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1709 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1710 if (!ctx->Extensions.ARB_texture_cube_map) {
1711 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1712 return GL_TRUE;
1713 }
1714 }
1715 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1716 if (!ctx->Extensions.NV_texture_rectangle) {
1717 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1718 return GL_TRUE;
1719 }
1720 }
1721 else if (target != GL_TEXTURE_2D) {
1722 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1723 return GL_TRUE;
1724 }
1725 }
1726 else if (dimensions == 3) {
1727 if (target != GL_TEXTURE_3D) {
1728 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
1729 return GL_TRUE;
1730 }
1731 }
1732
1733 /* Check level */
1734 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1735 _mesa_error(ctx, GL_INVALID_VALUE,
1736 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1737 return GL_TRUE;
1738 }
1739
1740 /* Check size */
1741 if (width < 0) {
1742 _mesa_error(ctx, GL_INVALID_VALUE,
1743 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1744 return GL_TRUE;
1745 }
1746 if (dimensions > 1 && height < 0) {
1747 _mesa_error(ctx, GL_INVALID_VALUE,
1748 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1749 return GL_TRUE;
1750 }
1751
1752 teximage = _mesa_select_tex_image(ctx, texUnit, target, level);
1753 if (!teximage) {
1754 _mesa_error(ctx, GL_INVALID_OPERATION,
1755 "glCopyTexSubImage%dD(undefined texture level: %d)",
1756 dimensions, level);
1757 return GL_TRUE;
1758 }
1759
1760 if (xoffset < -((GLint)teximage->Border)) {
1761 _mesa_error(ctx, GL_INVALID_VALUE,
1762 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
1763 return GL_TRUE;
1764 }
1765 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
1766 _mesa_error(ctx, GL_INVALID_VALUE,
1767 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1768 return GL_TRUE;
1769 }
1770 if (dimensions > 1) {
1771 if (yoffset < -((GLint)teximage->Border)) {
1772 _mesa_error(ctx, GL_INVALID_VALUE,
1773 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
1774 return GL_TRUE;
1775 }
1776 /* NOTE: we're adding the border here, not subtracting! */
1777 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
1778 _mesa_error(ctx, GL_INVALID_VALUE,
1779 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1780 return GL_TRUE;
1781 }
1782 }
1783
1784 if (dimensions > 2) {
1785 if (zoffset < -((GLint)teximage->Border)) {
1786 _mesa_error(ctx, GL_INVALID_VALUE,
1787 "glCopyTexSubImage%dD(zoffset)", dimensions);
1788 return GL_TRUE;
1789 }
1790 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
1791 _mesa_error(ctx, GL_INVALID_VALUE,
1792 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1793 return GL_TRUE;
1794 }
1795 }
1796
1797 if (teximage->IsCompressed) {
1798 if (target != GL_TEXTURE_2D) {
1799 _mesa_error(ctx, GL_INVALID_ENUM,
1800 "glCopyTexSubImage%d(target)", dimensions);
1801 return GL_TRUE;
1802 }
1803 /* offset must be multiple of 4 */
1804 if ((xoffset & 3) || (yoffset & 3)) {
1805 _mesa_error(ctx, GL_INVALID_VALUE,
1806 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
1807 return GL_TRUE;
1808 }
1809 /* size must be multiple of 4 */
1810 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
1811 _mesa_error(ctx, GL_INVALID_VALUE,
1812 "glCopyTexSubImage%D(width)", dimensions);
1813 return GL_TRUE;
1814 }
1815 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
1816 _mesa_error(ctx, GL_INVALID_VALUE,
1817 "glCopyTexSubImage%D(height)", dimensions);
1818 return GL_TRUE;
1819 }
1820 }
1821
1822 if (teximage->IntFormat == GL_YCBCR_MESA) {
1823 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
1824 return GL_TRUE;
1825 }
1826
1827 /* if we get here, the parameters are OK */
1828 return GL_FALSE;
1829 }
1830
1831
1832 /**
1833 * Get texture image. Called by glGetTexImage.
1834 *
1835 * \param target texture target.
1836 * \param level image level.
1837 * \param format pixel data format for returned image.
1838 * \param type pixel data type for returned image.
1839 * \param pixels returned pixel data.
1840 */
1841 void GLAPIENTRY
1842 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
1843 GLenum type, GLvoid *pixels )
1844 {
1845 const struct gl_texture_unit *texUnit;
1846 const struct gl_texture_object *texObj;
1847 const struct gl_texture_image *texImage;
1848 GLint maxLevels = 0;
1849 GET_CURRENT_CONTEXT(ctx);
1850 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
1851
1852 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
1853 texObj = _mesa_select_tex_object(ctx, texUnit, target);
1854 if (!texObj || is_proxy_target(target)) {
1855 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
1856 return;
1857 }
1858
1859 maxLevels = _mesa_max_texture_levels(ctx, target);
1860 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
1861
1862 if (level < 0 || level >= maxLevels) {
1863 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
1864 return;
1865 }
1866
1867 if (_mesa_sizeof_packed_type(type) <= 0) {
1868 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
1869 return;
1870 }
1871
1872 if (_mesa_components_in_format(format) <= 0 ||
1873 format == GL_STENCIL_INDEX) {
1874 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
1875 return;
1876 }
1877
1878 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
1879 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1880 }
1881
1882 if (!ctx->Extensions.SGIX_depth_texture && is_depth_format(format)) {
1883 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1884 }
1885
1886 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
1887 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
1888 }
1889
1890 if (!pixels)
1891 return;
1892
1893 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
1894 if (!texImage) {
1895 /* invalid mipmap level, not an error */
1896 return;
1897 }
1898
1899 if (!texImage->Data) {
1900 /* no image data, not an error */
1901 return;
1902 }
1903
1904 /* Make sure the requested image format is compatible with the
1905 * texture's format.
1906 */
1907 if (is_color_format(format)
1908 && !is_color_format(texImage->TexFormat->BaseFormat)) {
1909 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1910 return;
1911 }
1912 else if (is_index_format(format)
1913 && !is_index_format(texImage->TexFormat->BaseFormat)) {
1914 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1915 return;
1916 }
1917 else if (is_depth_format(format)
1918 && !is_depth_format(texImage->TexFormat->BaseFormat)) {
1919 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1920 return;
1921 }
1922 else if (is_ycbcr_format(format)
1923 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
1924 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
1925 return;
1926 }
1927
1928
1929
1930 {
1931 const GLint width = texImage->Width;
1932 const GLint height = texImage->Height;
1933 const GLint depth = texImage->Depth;
1934 GLint img, row;
1935 for (img = 0; img < depth; img++) {
1936 for (row = 0; row < height; row++) {
1937 /* compute destination address in client memory */
1938 GLvoid *dest = _mesa_image_address( &ctx->Pack, pixels,
1939 width, height, format, type,
1940 img, row, 0);
1941 assert(dest);
1942
1943 if (format == GL_COLOR_INDEX) {
1944 GLuint indexRow[MAX_WIDTH];
1945 GLint col;
1946 for (col = 0; col < width; col++) {
1947 GLchan indx;
1948 (*texImage->FetchTexelc)(texImage, col, row, img, &indx);
1949 indexRow[col] = indx;
1950 }
1951 _mesa_pack_index_span(ctx, width, type, dest,
1952 indexRow, &ctx->Pack,
1953 0 /* no image transfer */);
1954 }
1955 else if (format == GL_DEPTH_COMPONENT) {
1956 GLfloat depthRow[MAX_WIDTH];
1957 GLint col;
1958 for (col = 0; col < width; col++) {
1959 (*texImage->FetchTexelf)(texImage, col, row, img,
1960 (GLvoid *) &depthRow[col]);
1961 }
1962 _mesa_pack_depth_span(ctx, width, dest, type,
1963 depthRow, &ctx->Pack);
1964 }
1965 else if (format == GL_YCBCR_MESA) {
1966 /* No pixel transfer */
1967 const GLint rowstride = texImage->RowStride;
1968 MEMCPY(dest,
1969 (const GLushort *) texImage->Data + row * rowstride,
1970 width * sizeof(GLushort));
1971 /* check for byte swapping */
1972 if ((texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR
1973 && type == GL_UNSIGNED_SHORT_8_8_REV_MESA) ||
1974 (texImage->TexFormat->MesaFormat == MESA_FORMAT_YCBCR_REV
1975 && type == GL_UNSIGNED_SHORT_8_8_MESA)) {
1976 if (!ctx->Pack.SwapBytes)
1977 _mesa_swap2((GLushort *) dest, width);
1978 }
1979 else if (ctx->Pack.SwapBytes) {
1980 _mesa_swap2((GLushort *) dest, width);
1981 }
1982 }
1983 else {
1984 /* general case: convert row to RGBA format */
1985 GLchan rgba[MAX_WIDTH][4];
1986 GLint col;
1987 for (col = 0; col < width; col++) {
1988 (*texImage->FetchTexelc)(texImage, col, row, img, rgba[col]);
1989 }
1990 _mesa_pack_rgba_span_chan(ctx, width, (const GLchan (*)[4])rgba,
1991 format, type, dest, &ctx->Pack,
1992 0 /* no image transfer */);
1993 } /* format */
1994 } /* row */
1995 } /* img */
1996 }
1997 }
1998
1999
2000
2001 /*
2002 * Called from the API. Note that width includes the border.
2003 */
2004 void GLAPIENTRY
2005 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2006 GLsizei width, GLint border, GLenum format,
2007 GLenum type, const GLvoid *pixels )
2008 {
2009 GLsizei postConvWidth = width;
2010 GET_CURRENT_CONTEXT(ctx);
2011 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2012
2013 if (is_color_format(internalFormat)) {
2014 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2015 }
2016
2017 if (target == GL_TEXTURE_1D) {
2018 struct gl_texture_unit *texUnit;
2019 struct gl_texture_object *texObj;
2020 struct gl_texture_image *texImage;
2021
2022 if (texture_error_check(ctx, target, level, internalFormat,
2023 format, type, 1, postConvWidth, 1, 1, border)) {
2024 return; /* error was recorded */
2025 }
2026
2027 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2028 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2029 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2030
2031 if (!texImage) {
2032 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2033 return;
2034 }
2035 else if (texImage->Data && !texImage->IsClientData) {
2036 /* free the old texture data */
2037 MESA_PBUFFER_FREE(texImage->Data);
2038 }
2039 texImage->Data = NULL;
2040 clear_teximage_fields(texImage); /* not really needed, but helpful */
2041 _mesa_init_teximage_fields(ctx, target, texImage,
2042 postConvWidth, 1, 1,
2043 border, internalFormat);
2044
2045 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2046 _mesa_update_state(ctx);
2047
2048 ASSERT(ctx->Driver.TexImage1D);
2049
2050 /* Give the texture to the driver! <pixels> may be null! */
2051 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2052 width, border, format, type, pixels,
2053 &ctx->Unpack, texObj, texImage);
2054
2055 ASSERT(texImage->TexFormat);
2056
2057 /* If driver didn't explicitly set this, use the defaults */
2058 if (!texImage->FetchTexelc)
2059 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2060 if (!texImage->FetchTexelf)
2061 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2062 ASSERT(texImage->FetchTexelc);
2063 ASSERT(texImage->FetchTexelf);
2064
2065 /* state update */
2066 texObj->Complete = GL_FALSE;
2067 ctx->NewState |= _NEW_TEXTURE;
2068 }
2069 else if (target == GL_PROXY_TEXTURE_1D) {
2070 /* Proxy texture: check for errors and update proxy state */
2071 struct gl_texture_image *texImage;
2072 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2073 if (texture_error_check(ctx, target, level, internalFormat,
2074 format, type, 1, postConvWidth, 1, 1, border)) {
2075 /* when error, clear all proxy texture image parameters */
2076 if (texImage)
2077 clear_teximage_fields(texImage);
2078 }
2079 else {
2080 /* no error, set the tex image parameters */
2081 ASSERT(texImage);
2082 _mesa_init_teximage_fields(ctx, target, texImage,
2083 postConvWidth, 1, 1,
2084 border, internalFormat);
2085 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2086 internalFormat, format, type);
2087 }
2088 }
2089 else {
2090 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2091 return;
2092 }
2093 }
2094
2095
2096 void GLAPIENTRY
2097 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2098 GLsizei width, GLsizei height, GLint border,
2099 GLenum format, GLenum type,
2100 const GLvoid *pixels )
2101 {
2102 GLsizei postConvWidth = width, postConvHeight = height;
2103 GET_CURRENT_CONTEXT(ctx);
2104 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2105
2106 if (is_color_format(internalFormat)) {
2107 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2108 &postConvHeight);
2109 }
2110
2111 if (target == GL_TEXTURE_2D ||
2112 (ctx->Extensions.ARB_texture_cube_map &&
2113 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2114 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2115 (ctx->Extensions.NV_texture_rectangle &&
2116 target == GL_TEXTURE_RECTANGLE_NV)) {
2117 /* non-proxy target */
2118 struct gl_texture_unit *texUnit;
2119 struct gl_texture_object *texObj;
2120 struct gl_texture_image *texImage;
2121
2122 if (texture_error_check(ctx, target, level, internalFormat,
2123 format, type, 2, postConvWidth, postConvHeight,
2124 1, border)) {
2125 return; /* error was recorded */
2126 }
2127
2128 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2129 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2130 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2131 if (!texImage) {
2132 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2133 return;
2134 }
2135 else if (texImage->Data && !texImage->IsClientData) {
2136 /* free the old texture data */
2137 MESA_PBUFFER_FREE(texImage->Data);
2138 }
2139 texImage->Data = NULL;
2140 clear_teximage_fields(texImage); /* not really needed, but helpful */
2141 _mesa_init_teximage_fields(ctx, target, texImage,
2142 postConvWidth, postConvHeight, 1,
2143 border, internalFormat);
2144
2145 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2146 _mesa_update_state(ctx);
2147
2148 ASSERT(ctx->Driver.TexImage2D);
2149
2150 /* Give the texture to the driver! <pixels> may be null! */
2151 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2152 width, height, border, format, type, pixels,
2153 &ctx->Unpack, texObj, texImage);
2154
2155 ASSERT(texImage->TexFormat);
2156
2157 /* If driver didn't explicitly set these, use the defaults */
2158 if (!texImage->FetchTexelc)
2159 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2160 if (!texImage->FetchTexelf)
2161 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2162 ASSERT(texImage->FetchTexelc);
2163 ASSERT(texImage->FetchTexelf);
2164
2165 /* state update */
2166 texObj->Complete = GL_FALSE;
2167 ctx->NewState |= _NEW_TEXTURE;
2168 }
2169 else if (target == GL_PROXY_TEXTURE_2D ||
2170 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2171 ctx->Extensions.ARB_texture_cube_map) ||
2172 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2173 ctx->Extensions.NV_texture_rectangle)) {
2174 /* Proxy texture: check for errors and update proxy state */
2175 struct gl_texture_image *texImage;
2176 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2177 if (texture_error_check(ctx, target, level, internalFormat,
2178 format, type, 2, postConvWidth, postConvHeight,
2179 1, border)) {
2180 /* when error, clear all proxy texture image parameters */
2181 if (texImage)
2182 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2183 }
2184 else {
2185 /* no error, set the tex image parameters */
2186 _mesa_init_teximage_fields(ctx, target, texImage,
2187 postConvWidth, postConvHeight, 1,
2188 border, internalFormat);
2189 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2190 internalFormat, format, type);
2191 }
2192 }
2193 else {
2194 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2195 return;
2196 }
2197 }
2198
2199
2200 /*
2201 * Called by the API or display list executor.
2202 * Note that width and height include the border.
2203 */
2204 void GLAPIENTRY
2205 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2206 GLsizei width, GLsizei height, GLsizei depth,
2207 GLint border, GLenum format, GLenum type,
2208 const GLvoid *pixels )
2209 {
2210 GET_CURRENT_CONTEXT(ctx);
2211 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2212
2213 if (target == GL_TEXTURE_3D) {
2214 struct gl_texture_unit *texUnit;
2215 struct gl_texture_object *texObj;
2216 struct gl_texture_image *texImage;
2217
2218 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2219 format, type, 3, width, height, depth, border)) {
2220 return; /* error was recorded */
2221 }
2222
2223 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2224 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2225 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2226 if (!texImage) {
2227 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2228 return;
2229 }
2230 else if (texImage->Data && !texImage->IsClientData) {
2231 MESA_PBUFFER_FREE(texImage->Data);
2232 }
2233 texImage->Data = NULL;
2234 clear_teximage_fields(texImage); /* not really needed, but helpful */
2235 _mesa_init_teximage_fields(ctx, target, texImage,
2236 width, height, depth,
2237 border, internalFormat);
2238
2239 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2240 _mesa_update_state(ctx);
2241
2242 ASSERT(ctx->Driver.TexImage3D);
2243
2244 /* Give the texture to the driver! <pixels> may be null! */
2245 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2246 width, height, depth, border, format, type,
2247 pixels, &ctx->Unpack, texObj, texImage);
2248
2249 ASSERT(texImage->TexFormat);
2250
2251 /* If driver didn't explicitly set these, use the defaults */
2252 if (!texImage->FetchTexelc)
2253 texImage->FetchTexelc = texImage->TexFormat->FetchTexel3D;
2254 if (!texImage->FetchTexelf)
2255 texImage->FetchTexelf = texImage->TexFormat->FetchTexel3Df;
2256 ASSERT(texImage->FetchTexelc);
2257 ASSERT(texImage->FetchTexelf);
2258
2259 /* state update */
2260 texObj->Complete = GL_FALSE;
2261 ctx->NewState |= _NEW_TEXTURE;
2262 }
2263 else if (target == GL_PROXY_TEXTURE_3D) {
2264 /* Proxy texture: check for errors and update proxy state */
2265 struct gl_texture_image *texImage;
2266 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2267 if (texture_error_check(ctx, target, level, internalFormat,
2268 format, type, 3, width, height, depth, border)) {
2269 /* when error, clear all proxy texture image parameters */
2270 if (texImage)
2271 clear_teximage_fields(texImage);
2272 }
2273 else {
2274 /* no error, set the tex image parameters */
2275 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2276 border, internalFormat);
2277 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2278 internalFormat, format, type);
2279 }
2280 }
2281 else {
2282 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2283 return;
2284 }
2285 }
2286
2287
2288 void GLAPIENTRY
2289 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2290 GLsizei width, GLsizei height, GLsizei depth,
2291 GLint border, GLenum format, GLenum type,
2292 const GLvoid *pixels )
2293 {
2294 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2295 depth, border, format, type, pixels);
2296 }
2297
2298
2299
2300 void GLAPIENTRY
2301 _mesa_TexSubImage1D( GLenum target, GLint level,
2302 GLint xoffset, GLsizei width,
2303 GLenum format, GLenum type,
2304 const GLvoid *pixels )
2305 {
2306 GLsizei postConvWidth = width;
2307 struct gl_texture_unit *texUnit;
2308 struct gl_texture_object *texObj;
2309 struct gl_texture_image *texImage;
2310 GET_CURRENT_CONTEXT(ctx);
2311 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2312
2313 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2314 _mesa_update_state(ctx);
2315
2316 /* XXX should test internal format */
2317 if (is_color_format(format)) {
2318 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2319 }
2320
2321 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2322 postConvWidth, 1, 1, format, type)) {
2323 return; /* error was detected */
2324 }
2325
2326 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2327 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2328 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2329 assert(texImage);
2330
2331 if (width == 0 || !pixels)
2332 return; /* no-op, not an error */
2333
2334 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2335 xoffset += texImage->Border;
2336
2337 ASSERT(ctx->Driver.TexSubImage1D);
2338 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2339 format, type, pixels, &ctx->Unpack,
2340 texObj, texImage);
2341 ctx->NewState |= _NEW_TEXTURE;
2342 }
2343
2344
2345 void GLAPIENTRY
2346 _mesa_TexSubImage2D( GLenum target, GLint level,
2347 GLint xoffset, GLint yoffset,
2348 GLsizei width, GLsizei height,
2349 GLenum format, GLenum type,
2350 const GLvoid *pixels )
2351 {
2352 GLsizei postConvWidth = width, postConvHeight = height;
2353 struct gl_texture_unit *texUnit;
2354 struct gl_texture_object *texObj;
2355 struct gl_texture_image *texImage;
2356 GET_CURRENT_CONTEXT(ctx);
2357 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2358
2359 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2360 _mesa_update_state(ctx);
2361
2362 /* XXX should test internal format */
2363 if (is_color_format(format)) {
2364 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2365 &postConvHeight);
2366 }
2367
2368 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2369 postConvWidth, postConvHeight, 1, format, type)) {
2370 return; /* error was detected */
2371 }
2372
2373 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2374 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2375 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2376 assert(texImage);
2377
2378 if (width == 0 || height == 0 || !pixels)
2379 return; /* no-op, not an error */
2380
2381 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2382 xoffset += texImage->Border;
2383 yoffset += texImage->Border;
2384
2385 ASSERT(ctx->Driver.TexSubImage2D);
2386 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2387 width, height, format, type, pixels,
2388 &ctx->Unpack, texObj, texImage);
2389 ctx->NewState |= _NEW_TEXTURE;
2390 }
2391
2392
2393
2394 void GLAPIENTRY
2395 _mesa_TexSubImage3D( GLenum target, GLint level,
2396 GLint xoffset, GLint yoffset, GLint zoffset,
2397 GLsizei width, GLsizei height, GLsizei depth,
2398 GLenum format, GLenum type,
2399 const GLvoid *pixels )
2400 {
2401 struct gl_texture_unit *texUnit;
2402 struct gl_texture_object *texObj;
2403 struct gl_texture_image *texImage;
2404 GET_CURRENT_CONTEXT(ctx);
2405 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2406
2407 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2408 _mesa_update_state(ctx);
2409
2410 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2411 width, height, depth, format, type)) {
2412 return; /* error was detected */
2413 }
2414
2415 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2416 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2417 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2418 assert(texImage);
2419
2420 if (width == 0 || height == 0 || height == 0 || !pixels)
2421 return; /* no-op, not an error */
2422
2423 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2424 xoffset += texImage->Border;
2425 yoffset += texImage->Border;
2426 zoffset += texImage->Border;
2427
2428 ASSERT(ctx->Driver.TexSubImage3D);
2429 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2430 xoffset, yoffset, zoffset,
2431 width, height, depth,
2432 format, type, pixels,
2433 &ctx->Unpack, texObj, texImage );
2434 ctx->NewState |= _NEW_TEXTURE;
2435 }
2436
2437
2438
2439 void GLAPIENTRY
2440 _mesa_CopyTexImage1D( GLenum target, GLint level,
2441 GLenum internalFormat,
2442 GLint x, GLint y,
2443 GLsizei width, GLint border )
2444 {
2445 struct gl_texture_unit *texUnit;
2446 struct gl_texture_object *texObj;
2447 struct gl_texture_image *texImage;
2448 GLsizei postConvWidth = width;
2449 GET_CURRENT_CONTEXT(ctx);
2450 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2451
2452 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2453 _mesa_update_state(ctx);
2454
2455 if (is_color_format(internalFormat)) {
2456 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2457 }
2458
2459 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2460 postConvWidth, 1, border))
2461 return;
2462
2463 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2464 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2465 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2466 if (!texImage) {
2467 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2468 return;
2469 }
2470 else if (texImage->Data && !texImage->IsClientData) {
2471 /* free the old texture data */
2472 MESA_PBUFFER_FREE(texImage->Data);
2473 }
2474 texImage->Data = NULL;
2475
2476 clear_teximage_fields(texImage); /* not really needed, but helpful */
2477 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2478 border, internalFormat);
2479
2480
2481 ASSERT(ctx->Driver.CopyTexImage1D);
2482 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2483 x, y, width, border);
2484
2485 ASSERT(texImage->TexFormat);
2486
2487 /* If driver didn't explicitly set these, use the defaults */
2488 if (!texImage->FetchTexelc)
2489 texImage->FetchTexelc = texImage->TexFormat->FetchTexel1D;
2490 if (!texImage->FetchTexelf)
2491 texImage->FetchTexelf = texImage->TexFormat->FetchTexel1Df;
2492 ASSERT(texImage->FetchTexelc);
2493 ASSERT(texImage->FetchTexelf);
2494
2495 /* state update */
2496 texObj->Complete = GL_FALSE;
2497 ctx->NewState |= _NEW_TEXTURE;
2498 }
2499
2500
2501
2502 void GLAPIENTRY
2503 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2504 GLint x, GLint y, GLsizei width, GLsizei height,
2505 GLint border )
2506 {
2507 struct gl_texture_unit *texUnit;
2508 struct gl_texture_object *texObj;
2509 struct gl_texture_image *texImage;
2510 GLsizei postConvWidth = width, postConvHeight = height;
2511 GET_CURRENT_CONTEXT(ctx);
2512 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2513
2514 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2515 _mesa_update_state(ctx);
2516
2517 if (is_color_format(internalFormat)) {
2518 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2519 &postConvHeight);
2520 }
2521
2522 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2523 postConvWidth, postConvHeight, border))
2524 return;
2525
2526 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2527 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2528 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2529 if (!texImage) {
2530 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2531 return;
2532 }
2533 else if (texImage->Data && !texImage->IsClientData) {
2534 /* free the old texture data */
2535 MESA_PBUFFER_FREE(texImage->Data);
2536 }
2537 texImage->Data = NULL;
2538
2539 clear_teximage_fields(texImage); /* not really needed, but helpful */
2540 _mesa_init_teximage_fields(ctx, target, texImage,
2541 postConvWidth, postConvHeight, 1,
2542 border, internalFormat);
2543
2544 ASSERT(ctx->Driver.CopyTexImage2D);
2545 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
2546 x, y, width, height, border);
2547
2548 ASSERT(texImage->TexFormat);
2549
2550 /* If driver didn't explicitly set these, use the defaults */
2551 if (!texImage->FetchTexelc)
2552 texImage->FetchTexelc = texImage->TexFormat->FetchTexel2D;
2553 if (!texImage->FetchTexelf)
2554 texImage->FetchTexelf = texImage->TexFormat->FetchTexel2Df;
2555 ASSERT(texImage->FetchTexelc);
2556 ASSERT(texImage->FetchTexelf);
2557
2558 /* state update */
2559 texObj->Complete = GL_FALSE;
2560 ctx->NewState |= _NEW_TEXTURE;
2561 }
2562
2563
2564
2565 void GLAPIENTRY
2566 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2567 GLint xoffset, GLint x, GLint y, GLsizei width )
2568 {
2569 struct gl_texture_unit *texUnit;
2570 struct gl_texture_image *texImage;
2571 GLsizei postConvWidth = width;
2572 GET_CURRENT_CONTEXT(ctx);
2573 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2574
2575 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2576 _mesa_update_state(ctx);
2577
2578 /* XXX should test internal format */
2579 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2580
2581 if (copytexsubimage_error_check(ctx, 1, target, level,
2582 xoffset, 0, 0, postConvWidth, 1))
2583 return;
2584
2585 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2586 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2587 ASSERT(texImage);
2588
2589 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2590 xoffset += texImage->Border;
2591
2592 ASSERT(ctx->Driver.CopyTexSubImage1D);
2593 (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
2594 ctx->NewState |= _NEW_TEXTURE;
2595 }
2596
2597
2598
2599 void GLAPIENTRY
2600 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2601 GLint xoffset, GLint yoffset,
2602 GLint x, GLint y, GLsizei width, GLsizei height )
2603 {
2604 struct gl_texture_unit *texUnit;
2605 struct gl_texture_image *texImage;
2606 GLsizei postConvWidth = width, postConvHeight = height;
2607 GET_CURRENT_CONTEXT(ctx);
2608 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2609
2610 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2611 _mesa_update_state(ctx);
2612
2613 /* XXX should test internal format */
2614 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2615
2616 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2617 postConvWidth, postConvHeight))
2618 return;
2619
2620 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2621 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2622 ASSERT(texImage);
2623
2624 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2625 xoffset += texImage->Border;
2626 yoffset += texImage->Border;
2627
2628 ASSERT(ctx->Driver.CopyTexSubImage2D);
2629 (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
2630 xoffset, yoffset, x, y, width, height);
2631 ctx->NewState |= _NEW_TEXTURE;
2632 }
2633
2634
2635
2636 void GLAPIENTRY
2637 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2638 GLint xoffset, GLint yoffset, GLint zoffset,
2639 GLint x, GLint y, GLsizei width, GLsizei height )
2640 {
2641 struct gl_texture_unit *texUnit;
2642 struct gl_texture_image *texImage;
2643 GLsizei postConvWidth = width, postConvHeight = height;
2644 GET_CURRENT_CONTEXT(ctx);
2645 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2646
2647 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2648 _mesa_update_state(ctx);
2649
2650 /* XXX should test internal format */
2651 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
2652
2653 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
2654 zoffset, postConvWidth, postConvHeight))
2655 return;
2656
2657 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2658 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2659 ASSERT(texImage);
2660
2661 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2662 xoffset += texImage->Border;
2663 yoffset += texImage->Border;
2664 zoffset += texImage->Border;
2665
2666 ASSERT(ctx->Driver.CopyTexSubImage3D);
2667 (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
2668 xoffset, yoffset, zoffset,
2669 x, y, width, height);
2670 ctx->NewState |= _NEW_TEXTURE;
2671 }
2672
2673
2674
2675
2676 /**********************************************************************/
2677 /****** Compressed Textures ******/
2678 /**********************************************************************/
2679
2680
2681 /**
2682 * Error checking for glCompressedTexImage[123]D().
2683 * \return error code or GL_NO_ERROR.
2684 */
2685 static GLenum
2686 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
2687 GLenum target, GLint level,
2688 GLenum internalFormat, GLsizei width,
2689 GLsizei height, GLsizei depth, GLint border,
2690 GLsizei imageSize)
2691 {
2692 GLint expectedSize, maxLevels = 0, maxTextureSize;
2693
2694 if (dimensions == 1) {
2695 /* 1D compressed textures not allowed */
2696 return GL_INVALID_ENUM;
2697 }
2698 else if (dimensions == 2) {
2699 if (target == GL_PROXY_TEXTURE_2D) {
2700 maxLevels = ctx->Const.MaxTextureLevels;
2701 }
2702 else if (target == GL_TEXTURE_2D) {
2703 maxLevels = ctx->Const.MaxTextureLevels;
2704 }
2705 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2706 if (!ctx->Extensions.ARB_texture_cube_map)
2707 return GL_INVALID_ENUM; /*target*/
2708 maxLevels = ctx->Const.MaxCubeTextureLevels;
2709 }
2710 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2711 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2712 if (!ctx->Extensions.ARB_texture_cube_map)
2713 return GL_INVALID_ENUM; /*target*/
2714 maxLevels = ctx->Const.MaxCubeTextureLevels;
2715 }
2716 else {
2717 return GL_INVALID_ENUM; /*target*/
2718 }
2719 }
2720 else if (dimensions == 3) {
2721 /* 3D compressed textures not allowed */
2722 return GL_INVALID_ENUM;
2723 }
2724
2725 maxTextureSize = 1 << (maxLevels - 1);
2726
2727 if (!is_compressed_format(ctx, internalFormat))
2728 return GL_INVALID_ENUM;
2729
2730 if (border != 0)
2731 return GL_INVALID_VALUE;
2732
2733 /*
2734 * XXX We should probably use the proxy texture error check function here.
2735 */
2736 if (width < 1 || width > maxTextureSize ||
2737 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(width) < 0))
2738 return GL_INVALID_VALUE;
2739
2740 if ((height < 1 || height > maxTextureSize ||
2741 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(height) < 0))
2742 && dimensions > 1)
2743 return GL_INVALID_VALUE;
2744
2745 if ((depth < 1 || depth > maxTextureSize ||
2746 (!ctx->Extensions.ARB_texture_non_power_of_two && logbase2(depth) < 0))
2747 && dimensions > 2)
2748 return GL_INVALID_VALUE;
2749
2750 /* For cube map, width must equal height */
2751 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2752 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
2753 return GL_INVALID_VALUE;
2754
2755 if (level < 0 || level >= maxLevels)
2756 return GL_INVALID_VALUE;
2757
2758 expectedSize = _mesa_compressed_texture_size(ctx, width, height, depth,
2759 internalFormat);
2760 if (expectedSize != imageSize)
2761 return GL_INVALID_VALUE;
2762
2763 return GL_NO_ERROR;
2764 }
2765
2766
2767 /**
2768 * Error checking for glCompressedTexSubImage[123]D().
2769 * \return error code or GL_NO_ERROR.
2770 */
2771 static GLenum
2772 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
2773 GLenum target, GLint level,
2774 GLint xoffset, GLint yoffset, GLint zoffset,
2775 GLsizei width, GLsizei height, GLsizei depth,
2776 GLenum format, GLsizei imageSize)
2777 {
2778 GLint expectedSize, maxLevels = 0, maxTextureSize;
2779
2780 if (dimensions == 1) {
2781 /* 1D compressed textures not allowed */
2782 return GL_INVALID_ENUM;
2783 }
2784 else if (dimensions == 2) {
2785 if (target == GL_PROXY_TEXTURE_2D) {
2786 maxLevels = ctx->Const.MaxTextureLevels;
2787 }
2788 else if (target == GL_TEXTURE_2D) {
2789 maxLevels = ctx->Const.MaxTextureLevels;
2790 }
2791 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2792 if (!ctx->Extensions.ARB_texture_cube_map)
2793 return GL_INVALID_ENUM; /*target*/
2794 maxLevels = ctx->Const.MaxCubeTextureLevels;
2795 }
2796 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2797 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2798 if (!ctx->Extensions.ARB_texture_cube_map)
2799 return GL_INVALID_ENUM; /*target*/
2800 maxLevels = ctx->Const.MaxCubeTextureLevels;
2801 }
2802 else {
2803 return GL_INVALID_ENUM; /*target*/
2804 }
2805 }
2806 else if (dimensions == 3) {
2807 /* 3D compressed textures not allowed */
2808 return GL_INVALID_ENUM;
2809 }
2810
2811 maxTextureSize = 1 << (maxLevels - 1);
2812
2813 if (!is_compressed_format(ctx, format))
2814 return GL_INVALID_ENUM;
2815
2816 if (width < 1 || width > maxTextureSize)
2817 return GL_INVALID_VALUE;
2818
2819 if ((height < 1 || height > maxTextureSize)
2820 && dimensions > 1)
2821 return GL_INVALID_VALUE;
2822
2823 if (level < 0 || level >= maxLevels)
2824 return GL_INVALID_VALUE;
2825
2826 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
2827 return GL_INVALID_VALUE;
2828
2829 if ((width & 3) != 0 && width != 2 && width != 1)
2830 return GL_INVALID_VALUE;
2831
2832 if ((height & 3) != 0 && height != 2 && height != 1)
2833 return GL_INVALID_VALUE;
2834
2835 expectedSize = _mesa_compressed_texture_size(ctx, width, height, depth,
2836 format);
2837 if (expectedSize != imageSize)
2838 return GL_INVALID_VALUE;
2839
2840 return GL_NO_ERROR;
2841 }
2842
2843
2844
2845 void GLAPIENTRY
2846 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
2847 GLenum internalFormat, GLsizei width,
2848 GLint border, GLsizei imageSize,
2849 const GLvoid *data)
2850 {
2851 GET_CURRENT_CONTEXT(ctx);
2852 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2853
2854 if (target == GL_TEXTURE_1D) {
2855 struct gl_texture_unit *texUnit;
2856 struct gl_texture_object *texObj;
2857 struct gl_texture_image *texImage;
2858 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2859 internalFormat, width, 1, 1, border, imageSize);
2860 if (error) {
2861 _mesa_error(ctx, error, "glCompressedTexImage1D");
2862 return;
2863 }
2864
2865 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2866 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2867 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2868 if (!texImage) {
2869 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
2870 return;
2871 }
2872 else if (texImage->Data && !texImage->IsClientData) {
2873 MESA_PBUFFER_FREE(texImage->Data);
2874 }
2875 texImage->Data = NULL;
2876
2877 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2878 border, internalFormat);
2879
2880 ASSERT(ctx->Driver.CompressedTexImage1D);
2881 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
2882 internalFormat, width, border,
2883 imageSize, data,
2884 texObj, texImage);
2885
2886 /* state update */
2887 texObj->Complete = GL_FALSE;
2888 ctx->NewState |= _NEW_TEXTURE;
2889 }
2890 else if (target == GL_PROXY_TEXTURE_1D) {
2891 /* Proxy texture: check for errors and update proxy state */
2892 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
2893 internalFormat, width, 1, 1, border, imageSize);
2894 if (!error) {
2895 ASSERT(ctx->Driver.TestProxyTexImage);
2896 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
2897 internalFormat, GL_NONE, GL_NONE,
2898 width, 1, 1, border);
2899 }
2900 if (error) {
2901 /* if error, clear all proxy texture image parameters */
2902 struct gl_texture_image *texImage;
2903 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2904 if (texImage)
2905 clear_teximage_fields(texImage);
2906 }
2907 else {
2908 /* store the teximage parameters */
2909 struct gl_texture_unit *texUnit;
2910 struct gl_texture_image *texImage;
2911 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2912 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2913 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
2914 border, internalFormat);
2915 }
2916 }
2917 else {
2918 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
2919 return;
2920 }
2921 }
2922
2923
2924 void GLAPIENTRY
2925 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
2926 GLenum internalFormat, GLsizei width,
2927 GLsizei height, GLint border, GLsizei imageSize,
2928 const GLvoid *data)
2929 {
2930 GET_CURRENT_CONTEXT(ctx);
2931 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2932
2933 if (target == GL_TEXTURE_2D ||
2934 (ctx->Extensions.ARB_texture_cube_map &&
2935 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2936 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
2937 struct gl_texture_unit *texUnit;
2938 struct gl_texture_object *texObj;
2939 struct gl_texture_image *texImage;
2940 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2941 internalFormat, width, height, 1, border, imageSize);
2942 if (error) {
2943 _mesa_error(ctx, error, "glCompressedTexImage2D");
2944 return;
2945 }
2946
2947 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2948 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2949 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
2950 if (!texImage) {
2951 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
2952 return;
2953 }
2954 else if (texImage->Data && !texImage->IsClientData) {
2955 MESA_PBUFFER_FREE(texImage->Data);
2956 }
2957 texImage->Data = NULL;
2958
2959 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2960 border, internalFormat);
2961
2962 ASSERT(ctx->Driver.CompressedTexImage2D);
2963 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
2964 internalFormat, width, height,
2965 border, imageSize, data,
2966 texObj, texImage);
2967
2968 /* state update */
2969 texObj->Complete = GL_FALSE;
2970 ctx->NewState |= _NEW_TEXTURE;
2971 }
2972 else if (target == GL_PROXY_TEXTURE_2D ||
2973 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2974 ctx->Extensions.ARB_texture_cube_map)) {
2975 /* Proxy texture: check for errors and update proxy state */
2976 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
2977 internalFormat, width, height, 1, border, imageSize);
2978 if (!error) {
2979 ASSERT(ctx->Driver.TestProxyTexImage);
2980 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
2981 internalFormat, GL_NONE, GL_NONE,
2982 width, height, 1, border);
2983 }
2984 if (error) {
2985 /* if error, clear all proxy texture image parameters */
2986 struct gl_texture_image *texImage;
2987 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2988 if (texImage)
2989 clear_teximage_fields(texImage);
2990 }
2991 else {
2992 /* store the teximage parameters */
2993 struct gl_texture_unit *texUnit;
2994 struct gl_texture_image *texImage;
2995 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2996 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
2997 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2998 border, internalFormat);
2999 }
3000 }
3001 else {
3002 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3003 return;
3004 }
3005 }
3006
3007
3008 void GLAPIENTRY
3009 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3010 GLenum internalFormat, GLsizei width,
3011 GLsizei height, GLsizei depth, GLint border,
3012 GLsizei imageSize, const GLvoid *data)
3013 {
3014 GET_CURRENT_CONTEXT(ctx);
3015 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3016
3017 if (target == GL_TEXTURE_3D) {
3018 struct gl_texture_unit *texUnit;
3019 struct gl_texture_object *texObj;
3020 struct gl_texture_image *texImage;
3021 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3022 internalFormat, width, height, depth, border, imageSize);
3023 if (error) {
3024 _mesa_error(ctx, error, "glCompressedTexImage3D");
3025 return;
3026 }
3027
3028 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3029 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3030 texImage = _mesa_get_tex_image(ctx, texUnit, target, level);
3031 if (!texImage) {
3032 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3033 return;
3034 }
3035 else if (texImage->Data && !texImage->IsClientData) {
3036 MESA_PBUFFER_FREE(texImage->Data);
3037 }
3038 texImage->Data = NULL;
3039
3040 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3041 border, internalFormat);
3042
3043 ASSERT(ctx->Driver.CompressedTexImage3D);
3044 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3045 internalFormat,
3046 width, height, depth,
3047 border, imageSize, data,
3048 texObj, texImage);
3049
3050 /* state update */
3051 texObj->Complete = GL_FALSE;
3052 ctx->NewState |= _NEW_TEXTURE;
3053 }
3054 else if (target == GL_PROXY_TEXTURE_3D) {
3055 /* Proxy texture: check for errors and update proxy state */
3056 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3057 internalFormat, width, height, depth, border, imageSize);
3058 if (!error) {
3059 ASSERT(ctx->Driver.TestProxyTexImage);
3060 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3061 internalFormat, GL_NONE, GL_NONE,
3062 width, height, depth, border);
3063 }
3064 if (error) {
3065 /* if error, clear all proxy texture image parameters */
3066 struct gl_texture_image *texImage;
3067 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3068 if (texImage)
3069 clear_teximage_fields(texImage);
3070 }
3071 else {
3072 /* store the teximage parameters */
3073 struct gl_texture_unit *texUnit;
3074 struct gl_texture_image *texImage;
3075 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3076 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3077 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3078 depth, border, internalFormat);
3079 }
3080 }
3081 else {
3082 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3083 return;
3084 }
3085 }
3086
3087
3088 void GLAPIENTRY
3089 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3090 GLsizei width, GLenum format,
3091 GLsizei imageSize, const GLvoid *data)
3092 {
3093 struct gl_texture_unit *texUnit;
3094 struct gl_texture_object *texObj;
3095 struct gl_texture_image *texImage;
3096 GLenum error;
3097 GET_CURRENT_CONTEXT(ctx);
3098 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3099
3100 error = compressed_subtexture_error_check(ctx, 1, target, level,
3101 xoffset, 0, 0, width, 1, 1, format, imageSize);
3102 if (error) {
3103 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3104 return;
3105 }
3106
3107 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3108 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3109 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3110 assert(texImage);
3111
3112 if ((GLint) format != texImage->IntFormat) {
3113 _mesa_error(ctx, GL_INVALID_OPERATION,
3114 "glCompressedTexSubImage1D(format)");
3115 return;
3116 }
3117
3118 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3119 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3120 return;
3121 }
3122
3123 if (width == 0 || !data)
3124 return; /* no-op, not an error */
3125
3126 if (ctx->Driver.CompressedTexSubImage1D) {
3127 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3128 xoffset, width,
3129 format, imageSize, data,
3130 texObj, texImage);
3131 }
3132 ctx->NewState |= _NEW_TEXTURE;
3133 }
3134
3135
3136 void GLAPIENTRY
3137 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3138 GLint yoffset, GLsizei width, GLsizei height,
3139 GLenum format, GLsizei imageSize,
3140 const GLvoid *data)
3141 {
3142 struct gl_texture_unit *texUnit;
3143 struct gl_texture_object *texObj;
3144 struct gl_texture_image *texImage;
3145 GLenum error;
3146 GET_CURRENT_CONTEXT(ctx);
3147 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3148
3149 error = compressed_subtexture_error_check(ctx, 2, target, level,
3150 xoffset, yoffset, 0, width, height, 1, format, imageSize);
3151 if (error) {
3152 /* XXX proxy target? */
3153 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3154 return;
3155 }
3156
3157 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3158 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3159 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3160 assert(texImage);
3161
3162 if ((GLint) format != texImage->IntFormat) {
3163 _mesa_error(ctx, GL_INVALID_OPERATION,
3164 "glCompressedTexSubImage2D(format)");
3165 return;
3166 }
3167
3168 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3169 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3170 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3171 return;
3172 }
3173
3174 if (width == 0 || height == 0 || !data)
3175 return; /* no-op, not an error */
3176
3177 if (ctx->Driver.CompressedTexSubImage2D) {
3178 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3179 xoffset, yoffset, width, height,
3180 format, imageSize, data,
3181 texObj, texImage);
3182 }
3183 ctx->NewState |= _NEW_TEXTURE;
3184 }
3185
3186
3187 void GLAPIENTRY
3188 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3189 GLint yoffset, GLint zoffset, GLsizei width,
3190 GLsizei height, GLsizei depth, GLenum format,
3191 GLsizei imageSize, const GLvoid *data)
3192 {
3193 struct gl_texture_unit *texUnit;
3194 struct gl_texture_object *texObj;
3195 struct gl_texture_image *texImage;
3196 GLenum error;
3197 GET_CURRENT_CONTEXT(ctx);
3198 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3199
3200 error = compressed_subtexture_error_check(ctx, 3, target, level,
3201 xoffset, yoffset, zoffset, width, height, depth, format, imageSize);
3202 if (error) {
3203 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3204 return;
3205 }
3206
3207 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3208 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3209 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3210 assert(texImage);
3211
3212 if ((GLint) format != texImage->IntFormat) {
3213 _mesa_error(ctx, GL_INVALID_OPERATION,
3214 "glCompressedTexSubImage3D(format)");
3215 return;
3216 }
3217
3218 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3219 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3220 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3221 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3222 return;
3223 }
3224
3225 if (width == 0 || height == 0 || depth == 0 || !data)
3226 return; /* no-op, not an error */
3227
3228 if (ctx->Driver.CompressedTexSubImage3D) {
3229 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3230 xoffset, yoffset, zoffset,
3231 width, height, depth,
3232 format, imageSize, data,
3233 texObj, texImage);
3234 }
3235 ctx->NewState |= _NEW_TEXTURE;
3236 }
3237
3238
3239 void GLAPIENTRY
3240 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3241 {
3242 const struct gl_texture_unit *texUnit;
3243 const struct gl_texture_object *texObj;
3244 struct gl_texture_image *texImage;
3245 GLint maxLevels;
3246 GET_CURRENT_CONTEXT(ctx);
3247 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3248
3249 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3250 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3251 if (!texObj) {
3252 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3253 return;
3254 }
3255
3256 maxLevels = _mesa_max_texture_levels(ctx, target);
3257 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3258
3259 if (level < 0 || level >= maxLevels) {
3260 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3261 return;
3262 }
3263
3264 if (is_proxy_target(target)) {
3265 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3266 return;
3267 }
3268
3269 texImage = _mesa_select_tex_image(ctx, texUnit, target, level);
3270 if (!texImage) {
3271 /* probably invalid mipmap level */
3272 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3273 return;
3274 }
3275
3276 if (!texImage->IsCompressed) {
3277 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
3278 return;
3279 }
3280
3281 if (!img)
3282 return;
3283
3284 /* just memcpy, no pixelstore or pixel transfer */
3285 MEMCPY(img, texImage->Data, texImage->CompressedSize);
3286 }