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Merge branch 'mesa_7_5_branch'
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * mesa 3-D graphics library
3 * Version: 7.5
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 /**
28 * \file teximage.c
29 * Texture image-related functions.
30 */
31
32
33 #include "glheader.h"
34 #include "bufferobj.h"
35 #include "context.h"
36 #if FEATURE_convolve
37 #include "convolve.h"
38 #endif
39 #include "fbobject.h"
40 #include "framebuffer.h"
41 #include "hash.h"
42 #include "image.h"
43 #include "imports.h"
44 #include "macros.h"
45 #include "state.h"
46 #include "texcompress.h"
47 #include "texformat.h"
48 #include "teximage.h"
49 #include "texstate.h"
50 #include "texstore.h"
51 #include "mtypes.h"
52
53
54 /**
55 * State changes which we care about for glCopyTex[Sub]Image() calls.
56 * In particular, we care about pixel transfer state and buffer state
57 * (such as glReadBuffer to make sure we read from the right renderbuffer).
58 */
59 #define NEW_COPY_TEX_STATE (_MESA_NEW_TRANSFER_STATE | \
60 _NEW_BUFFERS | \
61 _NEW_PIXEL)
62
63
64
65 /**
66 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
67 * elsewhere.
68 */
69 void *
70 _mesa_alloc_texmemory(GLsizei bytes)
71 {
72 return _mesa_align_malloc(bytes, 512);
73 }
74
75
76 /**
77 * Free texture memory allocated with _mesa_alloc_texmemory()
78 */
79 void
80 _mesa_free_texmemory(void *m)
81 {
82 _mesa_align_free(m);
83 }
84
85
86
87
88 #if 0
89 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
90 {
91 #if CHAN_TYPE != GL_UNSIGNED_BYTE
92 _mesa_problem(NULL, "PrintTexture not supported");
93 #else
94 GLuint i, j, c;
95 const GLubyte *data = (const GLubyte *) img->Data;
96
97 if (!data) {
98 _mesa_printf("No texture data\n");
99 return;
100 }
101
102 switch (img->Format) {
103 case GL_ALPHA:
104 case GL_LUMINANCE:
105 case GL_INTENSITY:
106 case GL_COLOR_INDEX:
107 c = 1;
108 break;
109 case GL_LUMINANCE_ALPHA:
110 c = 2;
111 break;
112 case GL_RGB:
113 c = 3;
114 break;
115 case GL_RGBA:
116 c = 4;
117 break;
118 default:
119 _mesa_problem(NULL, "error in PrintTexture\n");
120 return;
121 }
122
123 for (i = 0; i < img->Height; i++) {
124 for (j = 0; j < img->Width; j++) {
125 if (c==1)
126 _mesa_printf("%02x ", data[0]);
127 else if (c==2)
128 _mesa_printf("%02x%02x ", data[0], data[1]);
129 else if (c==3)
130 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
131 else if (c==4)
132 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
133 data += (img->RowStride - img->Width) * c;
134 }
135 /* XXX use img->ImageStride here */
136 _mesa_printf("\n");
137 }
138 #endif
139 }
140 #endif
141
142
143 /*
144 * Compute floor(log_base_2(n)).
145 * If n < 0 return -1.
146 */
147 static int
148 logbase2( int n )
149 {
150 GLint i = 1;
151 GLint log2 = 0;
152
153 if (n < 0)
154 return -1;
155
156 if (n == 0)
157 return 0;
158
159 while ( n > i ) {
160 i *= 2;
161 log2++;
162 }
163 if (i != n) {
164 return log2 - 1;
165 }
166 else {
167 return log2;
168 }
169 }
170
171
172
173 /**
174 * Return the simple base format for a given internal texture format.
175 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
176 *
177 * \param ctx GL context.
178 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
179 *
180 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
181 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
182 *
183 * This is the format which is used during texture application (i.e. the
184 * texture format and env mode determine the arithmetic used.
185 */
186 GLint
187 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
188 {
189 switch (internalFormat) {
190 case GL_ALPHA:
191 case GL_ALPHA4:
192 case GL_ALPHA8:
193 case GL_ALPHA12:
194 case GL_ALPHA16:
195 return GL_ALPHA;
196 case 1:
197 case GL_LUMINANCE:
198 case GL_LUMINANCE4:
199 case GL_LUMINANCE8:
200 case GL_LUMINANCE12:
201 case GL_LUMINANCE16:
202 return GL_LUMINANCE;
203 case 2:
204 case GL_LUMINANCE_ALPHA:
205 case GL_LUMINANCE4_ALPHA4:
206 case GL_LUMINANCE6_ALPHA2:
207 case GL_LUMINANCE8_ALPHA8:
208 case GL_LUMINANCE12_ALPHA4:
209 case GL_LUMINANCE12_ALPHA12:
210 case GL_LUMINANCE16_ALPHA16:
211 return GL_LUMINANCE_ALPHA;
212 case GL_INTENSITY:
213 case GL_INTENSITY4:
214 case GL_INTENSITY8:
215 case GL_INTENSITY12:
216 case GL_INTENSITY16:
217 return GL_INTENSITY;
218 case 3:
219 case GL_RGB:
220 case GL_R3_G3_B2:
221 case GL_RGB4:
222 case GL_RGB5:
223 case GL_RGB8:
224 case GL_RGB10:
225 case GL_RGB12:
226 case GL_RGB16:
227 return GL_RGB;
228 case 4:
229 case GL_RGBA:
230 case GL_RGBA2:
231 case GL_RGBA4:
232 case GL_RGB5_A1:
233 case GL_RGBA8:
234 case GL_RGB10_A2:
235 case GL_RGBA12:
236 case GL_RGBA16:
237 return GL_RGBA;
238 default:
239 ; /* fallthrough */
240 }
241
242 if (ctx->Extensions.EXT_paletted_texture) {
243 switch (internalFormat) {
244 case GL_COLOR_INDEX:
245 case GL_COLOR_INDEX1_EXT:
246 case GL_COLOR_INDEX2_EXT:
247 case GL_COLOR_INDEX4_EXT:
248 case GL_COLOR_INDEX8_EXT:
249 case GL_COLOR_INDEX12_EXT:
250 case GL_COLOR_INDEX16_EXT:
251 return GL_COLOR_INDEX;
252 default:
253 ; /* fallthrough */
254 }
255 }
256
257 if (ctx->Extensions.ARB_depth_texture) {
258 switch (internalFormat) {
259 case GL_DEPTH_COMPONENT:
260 case GL_DEPTH_COMPONENT16:
261 case GL_DEPTH_COMPONENT24:
262 case GL_DEPTH_COMPONENT32:
263 return GL_DEPTH_COMPONENT;
264 default:
265 ; /* fallthrough */
266 }
267 }
268
269 switch (internalFormat) {
270 case GL_COMPRESSED_ALPHA:
271 return GL_ALPHA;
272 case GL_COMPRESSED_LUMINANCE:
273 return GL_LUMINANCE;
274 case GL_COMPRESSED_LUMINANCE_ALPHA:
275 return GL_LUMINANCE_ALPHA;
276 case GL_COMPRESSED_INTENSITY:
277 return GL_INTENSITY;
278 case GL_COMPRESSED_RGB:
279 return GL_RGB;
280 case GL_COMPRESSED_RGBA:
281 return GL_RGBA;
282 default:
283 ; /* fallthrough */
284 }
285
286 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
287 switch (internalFormat) {
288 case GL_COMPRESSED_RGB_FXT1_3DFX:
289 return GL_RGB;
290 case GL_COMPRESSED_RGBA_FXT1_3DFX:
291 return GL_RGBA;
292 default:
293 ; /* fallthrough */
294 }
295 }
296
297 if (ctx->Extensions.EXT_texture_compression_s3tc) {
298 switch (internalFormat) {
299 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
300 return GL_RGB;
301 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
302 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
303 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
304 return GL_RGBA;
305 default:
306 ; /* fallthrough */
307 }
308 }
309
310 if (ctx->Extensions.S3_s3tc) {
311 switch (internalFormat) {
312 case GL_RGB_S3TC:
313 case GL_RGB4_S3TC:
314 return GL_RGB;
315 case GL_RGBA_S3TC:
316 case GL_RGBA4_S3TC:
317 return GL_RGBA;
318 default:
319 ; /* fallthrough */
320 }
321 }
322
323 if (ctx->Extensions.MESA_ycbcr_texture) {
324 if (internalFormat == GL_YCBCR_MESA)
325 return GL_YCBCR_MESA;
326 }
327
328 if (ctx->Extensions.ARB_texture_float) {
329 switch (internalFormat) {
330 case GL_ALPHA16F_ARB:
331 case GL_ALPHA32F_ARB:
332 return GL_ALPHA;
333 case GL_RGBA16F_ARB:
334 case GL_RGBA32F_ARB:
335 return GL_RGBA;
336 case GL_RGB16F_ARB:
337 case GL_RGB32F_ARB:
338 return GL_RGB;
339 case GL_INTENSITY16F_ARB:
340 case GL_INTENSITY32F_ARB:
341 return GL_INTENSITY;
342 case GL_LUMINANCE16F_ARB:
343 case GL_LUMINANCE32F_ARB:
344 return GL_LUMINANCE;
345 case GL_LUMINANCE_ALPHA16F_ARB:
346 case GL_LUMINANCE_ALPHA32F_ARB:
347 return GL_LUMINANCE_ALPHA;
348 default:
349 ; /* fallthrough */
350 }
351 }
352
353 if (ctx->Extensions.ATI_envmap_bumpmap) {
354 switch (internalFormat) {
355 case GL_DUDV_ATI:
356 case GL_DU8DV8_ATI:
357 return GL_DUDV_ATI;
358 default:
359 ; /* fallthrough */
360 }
361 }
362
363 if (ctx->Extensions.MESA_texture_signed_rgba) {
364 switch (internalFormat) {
365 case GL_RGBA_SNORM:
366 case GL_RGBA8_SNORM:
367 return GL_RGBA;
368 default:
369 ; /* fallthrough */
370 }
371 }
372
373 if (ctx->Extensions.EXT_packed_depth_stencil) {
374 switch (internalFormat) {
375 case GL_DEPTH_STENCIL_EXT:
376 case GL_DEPTH24_STENCIL8_EXT:
377 return GL_DEPTH_STENCIL_EXT;
378 default:
379 ; /* fallthrough */
380 }
381 }
382
383 #if FEATURE_EXT_texture_sRGB
384 if (ctx->Extensions.EXT_texture_sRGB) {
385 switch (internalFormat) {
386 case GL_SRGB_EXT:
387 case GL_SRGB8_EXT:
388 case GL_COMPRESSED_SRGB_EXT:
389 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
390 return GL_RGB;
391 case GL_SRGB_ALPHA_EXT:
392 case GL_SRGB8_ALPHA8_EXT:
393 case GL_COMPRESSED_SRGB_ALPHA_EXT:
394 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
395 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
396 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
397 return GL_RGBA;
398 case GL_SLUMINANCE_ALPHA_EXT:
399 case GL_SLUMINANCE8_ALPHA8_EXT:
400 case GL_COMPRESSED_SLUMINANCE_EXT:
401 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
402 return GL_LUMINANCE_ALPHA;
403 case GL_SLUMINANCE_EXT:
404 case GL_SLUMINANCE8_EXT:
405 return GL_LUMINANCE;
406 default:
407 ; /* fallthrough */
408 }
409 }
410
411 #endif /* FEATURE_EXT_texture_sRGB */
412
413 return -1; /* error */
414 }
415
416
417 /**
418 * Test if the given image format is a color/RGBA format (i.e., not color
419 * index, depth, stencil, etc).
420 * \param format the image format value (may by an internal texture format)
421 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
422 * XXX maybe move this func to image.c
423 */
424 GLboolean
425 _mesa_is_color_format(GLenum format)
426 {
427 switch (format) {
428 case GL_RED:
429 case GL_GREEN:
430 case GL_BLUE:
431 case GL_ALPHA:
432 case GL_ALPHA4:
433 case GL_ALPHA8:
434 case GL_ALPHA12:
435 case GL_ALPHA16:
436 case 1:
437 case GL_LUMINANCE:
438 case GL_LUMINANCE4:
439 case GL_LUMINANCE8:
440 case GL_LUMINANCE12:
441 case GL_LUMINANCE16:
442 case 2:
443 case GL_LUMINANCE_ALPHA:
444 case GL_LUMINANCE4_ALPHA4:
445 case GL_LUMINANCE6_ALPHA2:
446 case GL_LUMINANCE8_ALPHA8:
447 case GL_LUMINANCE12_ALPHA4:
448 case GL_LUMINANCE12_ALPHA12:
449 case GL_LUMINANCE16_ALPHA16:
450 case GL_INTENSITY:
451 case GL_INTENSITY4:
452 case GL_INTENSITY8:
453 case GL_INTENSITY12:
454 case GL_INTENSITY16:
455 case 3:
456 case GL_RGB:
457 case GL_BGR:
458 case GL_R3_G3_B2:
459 case GL_RGB4:
460 case GL_RGB5:
461 case GL_RGB8:
462 case GL_RGB10:
463 case GL_RGB12:
464 case GL_RGB16:
465 case 4:
466 case GL_ABGR_EXT:
467 case GL_RGBA:
468 case GL_BGRA:
469 case GL_RGBA2:
470 case GL_RGBA4:
471 case GL_RGB5_A1:
472 case GL_RGBA8:
473 case GL_RGB10_A2:
474 case GL_RGBA12:
475 case GL_RGBA16:
476 /* float texture formats */
477 case GL_ALPHA16F_ARB:
478 case GL_ALPHA32F_ARB:
479 case GL_LUMINANCE16F_ARB:
480 case GL_LUMINANCE32F_ARB:
481 case GL_LUMINANCE_ALPHA16F_ARB:
482 case GL_LUMINANCE_ALPHA32F_ARB:
483 case GL_INTENSITY16F_ARB:
484 case GL_INTENSITY32F_ARB:
485 case GL_RGB16F_ARB:
486 case GL_RGB32F_ARB:
487 case GL_RGBA16F_ARB:
488 case GL_RGBA32F_ARB:
489 /* compressed formats */
490 case GL_COMPRESSED_ALPHA:
491 case GL_COMPRESSED_LUMINANCE:
492 case GL_COMPRESSED_LUMINANCE_ALPHA:
493 case GL_COMPRESSED_INTENSITY:
494 case GL_COMPRESSED_RGB:
495 case GL_COMPRESSED_RGBA:
496 case GL_RGB_S3TC:
497 case GL_RGB4_S3TC:
498 case GL_RGBA_S3TC:
499 case GL_RGBA4_S3TC:
500 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
501 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
502 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
503 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
504 case GL_COMPRESSED_RGB_FXT1_3DFX:
505 case GL_COMPRESSED_RGBA_FXT1_3DFX:
506 #if FEATURE_EXT_texture_sRGB
507 case GL_SRGB_EXT:
508 case GL_SRGB8_EXT:
509 case GL_SRGB_ALPHA_EXT:
510 case GL_SRGB8_ALPHA8_EXT:
511 case GL_SLUMINANCE_ALPHA_EXT:
512 case GL_SLUMINANCE8_ALPHA8_EXT:
513 case GL_SLUMINANCE_EXT:
514 case GL_SLUMINANCE8_EXT:
515 case GL_COMPRESSED_SRGB_EXT:
516 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
517 case GL_COMPRESSED_SRGB_ALPHA_EXT:
518 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
519 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
520 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
521 case GL_COMPRESSED_SLUMINANCE_EXT:
522 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
523 #endif /* FEATURE_EXT_texture_sRGB */
524 return GL_TRUE;
525 /* signed texture formats */
526 case GL_RGBA_SNORM:
527 case GL_RGBA8_SNORM:
528 return GL_TRUE;
529 case GL_YCBCR_MESA: /* not considered to be RGB */
530 /* fall-through */
531 default:
532 return GL_FALSE;
533 }
534 }
535
536
537 /**
538 * Test if the given image format is a color index format.
539 */
540 static GLboolean
541 is_index_format(GLenum format)
542 {
543 switch (format) {
544 case GL_COLOR_INDEX:
545 case GL_COLOR_INDEX1_EXT:
546 case GL_COLOR_INDEX2_EXT:
547 case GL_COLOR_INDEX4_EXT:
548 case GL_COLOR_INDEX8_EXT:
549 case GL_COLOR_INDEX12_EXT:
550 case GL_COLOR_INDEX16_EXT:
551 return GL_TRUE;
552 default:
553 return GL_FALSE;
554 }
555 }
556
557
558 /**
559 * Test if the given image format is a depth component format.
560 */
561 static GLboolean
562 is_depth_format(GLenum format)
563 {
564 switch (format) {
565 case GL_DEPTH_COMPONENT16:
566 case GL_DEPTH_COMPONENT24:
567 case GL_DEPTH_COMPONENT32:
568 case GL_DEPTH_COMPONENT:
569 return GL_TRUE;
570 default:
571 return GL_FALSE;
572 }
573 }
574
575
576 /**
577 * Test if the given image format is a YCbCr format.
578 */
579 static GLboolean
580 is_ycbcr_format(GLenum format)
581 {
582 switch (format) {
583 case GL_YCBCR_MESA:
584 return GL_TRUE;
585 default:
586 return GL_FALSE;
587 }
588 }
589
590
591 /**
592 * Test if the given image format is a Depth/Stencil format.
593 */
594 static GLboolean
595 is_depthstencil_format(GLenum format)
596 {
597 switch (format) {
598 case GL_DEPTH24_STENCIL8_EXT:
599 case GL_DEPTH_STENCIL_EXT:
600 return GL_TRUE;
601 default:
602 return GL_FALSE;
603 }
604 }
605
606 /**
607 * Test if the given image format is a dudv format.
608 */
609 static GLboolean
610 is_dudv_format(GLenum format)
611 {
612 switch (format) {
613 case GL_DUDV_ATI:
614 case GL_DU8DV8_ATI:
615 return GL_TRUE;
616 default:
617 return GL_FALSE;
618 }
619 }
620
621
622 /**
623 * Test if it is a supported compressed format.
624 *
625 * \param internalFormat the internal format token provided by the user.
626 *
627 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
628 * GL_FALSE otherwise.
629 *
630 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
631 * are supported.
632 */
633 static GLboolean
634 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
635 {
636 GLint supported[100]; /* 100 should be plenty */
637 GLuint i, n;
638
639 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
640 ASSERT(n < 100);
641 for (i = 0; i < n; i++) {
642 if ((GLint) internalFormat == supported[i]) {
643 return GL_TRUE;
644 }
645 }
646 return GL_FALSE;
647 }
648
649
650 /**
651 * For cube map faces, return a face index in [0,5].
652 * For other targets return 0;
653 */
654 GLuint
655 _mesa_tex_target_to_face(GLenum target)
656 {
657 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
658 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
659 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
660 else
661 return 0;
662 }
663
664
665
666 /**
667 * Store a gl_texture_image pointer in a gl_texture_object structure
668 * according to the target and level parameters.
669 *
670 * \param tObj texture object.
671 * \param target texture target.
672 * \param level image level.
673 * \param texImage texture image.
674 *
675 * This was basically prompted by the introduction of cube maps.
676 */
677 void
678 _mesa_set_tex_image(struct gl_texture_object *tObj,
679 GLenum target, GLint level,
680 struct gl_texture_image *texImage)
681 {
682 ASSERT(tObj);
683 ASSERT(texImage);
684 /* XXX simplify this with _mesa_tex_target_to_face() */
685 switch (target) {
686 case GL_TEXTURE_1D:
687 case GL_TEXTURE_2D:
688 case GL_TEXTURE_3D:
689 case GL_TEXTURE_1D_ARRAY_EXT:
690 case GL_TEXTURE_2D_ARRAY_EXT:
691 tObj->Image[0][level] = texImage;
692 break;
693 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
694 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
695 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
696 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
699 {
700 GLuint face = ((GLuint) target -
701 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
702 tObj->Image[face][level] = texImage;
703 }
704 break;
705 case GL_TEXTURE_RECTANGLE_NV:
706 ASSERT(level == 0);
707 tObj->Image[0][level] = texImage;
708 break;
709 default:
710 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
711 return;
712 }
713 /* Set the 'back' pointer */
714 texImage->TexObject = tObj;
715 }
716
717
718 /**
719 * Allocate a texture image structure.
720 *
721 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
722 * driver.
723 *
724 * \return a pointer to gl_texture_image struct with all fields initialized to
725 * zero.
726 */
727 struct gl_texture_image *
728 _mesa_new_texture_image( GLcontext *ctx )
729 {
730 (void) ctx;
731 return CALLOC_STRUCT(gl_texture_image);
732 }
733
734
735 /**
736 * Free texture image data.
737 * This function is a fallback called via ctx->Driver.FreeTexImageData().
738 *
739 * \param texImage texture image.
740 *
741 * Free the texture image data if it's not marked as client data.
742 */
743 void
744 _mesa_free_texture_image_data(GLcontext *ctx,
745 struct gl_texture_image *texImage)
746 {
747 (void) ctx;
748
749 if (texImage->Data && !texImage->IsClientData) {
750 /* free the old texture data */
751 _mesa_free_texmemory(texImage->Data);
752 }
753
754 texImage->Data = NULL;
755 }
756
757
758 /**
759 * Free texture image.
760 *
761 * \param texImage texture image.
762 *
763 * Free the texture image structure and the associated image data.
764 */
765 void
766 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
767 {
768 /* Free texImage->Data and/or any other driver-specific texture
769 * image storage.
770 */
771 ASSERT(ctx->Driver.FreeTexImageData);
772 ctx->Driver.FreeTexImageData( ctx, texImage );
773
774 ASSERT(texImage->Data == NULL);
775 if (texImage->ImageOffsets)
776 _mesa_free(texImage->ImageOffsets);
777 _mesa_free(texImage);
778 }
779
780
781 /**
782 * Test if a target is a proxy target.
783 *
784 * \param target texture target.
785 *
786 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
787 */
788 GLboolean
789 _mesa_is_proxy_texture(GLenum target)
790 {
791 return (target == GL_PROXY_TEXTURE_1D ||
792 target == GL_PROXY_TEXTURE_2D ||
793 target == GL_PROXY_TEXTURE_3D ||
794 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
795 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
796 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
797 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
798 }
799
800
801 /**
802 * Get the texture object that corresponds to the target of the given texture unit.
803 *
804 * \param ctx GL context.
805 * \param texUnit texture unit.
806 * \param target texture target.
807 *
808 * \return pointer to the texture object on success, or NULL on failure.
809 *
810 * \sa gl_texture_unit.
811 */
812 struct gl_texture_object *
813 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
814 GLenum target)
815 {
816 switch (target) {
817 case GL_TEXTURE_1D:
818 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
819 case GL_PROXY_TEXTURE_1D:
820 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
821 case GL_TEXTURE_2D:
822 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
823 case GL_PROXY_TEXTURE_2D:
824 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
825 case GL_TEXTURE_3D:
826 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
827 case GL_PROXY_TEXTURE_3D:
828 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
829 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
830 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
831 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
832 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
833 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
834 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
835 case GL_TEXTURE_CUBE_MAP_ARB:
836 return ctx->Extensions.ARB_texture_cube_map
837 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
838 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
839 return ctx->Extensions.ARB_texture_cube_map
840 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
841 case GL_TEXTURE_RECTANGLE_NV:
842 return ctx->Extensions.NV_texture_rectangle
843 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
844 case GL_PROXY_TEXTURE_RECTANGLE_NV:
845 return ctx->Extensions.NV_texture_rectangle
846 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
847 case GL_TEXTURE_1D_ARRAY_EXT:
848 return ctx->Extensions.MESA_texture_array
849 ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
850 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
851 return ctx->Extensions.MESA_texture_array
852 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
853 case GL_TEXTURE_2D_ARRAY_EXT:
854 return ctx->Extensions.MESA_texture_array
855 ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
856 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
857 return ctx->Extensions.MESA_texture_array
858 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
859 default:
860 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
861 return NULL;
862 }
863 }
864
865
866 /**
867 * Get the texture image struct which corresponds to target and level
868 * of the given texture unit.
869 *
870 * \param ctx GL context.
871 * \param texObj texture unit.
872 * \param target texture target.
873 * \param level image level.
874 *
875 * \return pointer to the texture image structure on success, or NULL on failure.
876 *
877 * \sa gl_texture_unit.
878 */
879 struct gl_texture_image *
880 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
881 GLenum target, GLint level)
882 {
883 ASSERT(texObj);
884
885 if (level < 0 || level >= MAX_TEXTURE_LEVELS)
886 return NULL;
887
888 /* XXX simplify this with _mesa_tex_target_to_face() */
889 switch (target) {
890 case GL_TEXTURE_1D:
891 case GL_PROXY_TEXTURE_1D:
892 case GL_TEXTURE_2D:
893 case GL_PROXY_TEXTURE_2D:
894 case GL_TEXTURE_3D:
895 case GL_PROXY_TEXTURE_3D:
896 return texObj->Image[0][level];
897
898 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
899 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
900 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
901 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
902 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
903 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
904 if (ctx->Extensions.ARB_texture_cube_map) {
905 GLuint face = ((GLuint) target -
906 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
907 return texObj->Image[face][level];
908 }
909 else
910 return NULL;
911
912 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
913 if (ctx->Extensions.ARB_texture_cube_map)
914 return texObj->Image[0][level];
915 else
916 return NULL;
917
918 case GL_TEXTURE_RECTANGLE_NV:
919 case GL_PROXY_TEXTURE_RECTANGLE_NV:
920 if (ctx->Extensions.NV_texture_rectangle && level == 0)
921 return texObj->Image[0][level];
922 else
923 return NULL;
924
925 case GL_TEXTURE_1D_ARRAY_EXT:
926 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
927 case GL_TEXTURE_2D_ARRAY_EXT:
928 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
929 return (ctx->Extensions.MESA_texture_array)
930 ? texObj->Image[0][level] : NULL;
931
932 default:
933 return NULL;
934 }
935 }
936
937
938 /**
939 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
940 * it and install it. Only return NULL if passed a bad parameter or run
941 * out of memory.
942 */
943 struct gl_texture_image *
944 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
945 GLenum target, GLint level)
946 {
947 struct gl_texture_image *texImage;
948
949 if (!texObj)
950 return NULL;
951
952 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
953 if (!texImage) {
954 texImage = ctx->Driver.NewTextureImage(ctx);
955 if (!texImage) {
956 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
957 return NULL;
958 }
959
960 _mesa_set_tex_image(texObj, target, level, texImage);
961 }
962
963 return texImage;
964 }
965
966
967 /**
968 * Return pointer to the specified proxy texture image.
969 * Note that proxy textures are per-context, not per-texture unit.
970 * \return pointer to texture image or NULL if invalid target, invalid
971 * level, or out of memory.
972 */
973 struct gl_texture_image *
974 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
975 {
976 struct gl_texture_image *texImage;
977 GLuint texIndex;
978
979 if (level < 0 )
980 return NULL;
981
982 switch (target) {
983 case GL_PROXY_TEXTURE_1D:
984 if (level >= ctx->Const.MaxTextureLevels)
985 return NULL;
986 texIndex = TEXTURE_1D_INDEX;
987 break;
988 case GL_PROXY_TEXTURE_2D:
989 if (level >= ctx->Const.MaxTextureLevels)
990 return NULL;
991 texIndex = TEXTURE_2D_INDEX;
992 break;
993 case GL_PROXY_TEXTURE_3D:
994 if (level >= ctx->Const.Max3DTextureLevels)
995 return NULL;
996 texIndex = TEXTURE_3D_INDEX;
997 break;
998 case GL_PROXY_TEXTURE_CUBE_MAP:
999 if (level >= ctx->Const.MaxCubeTextureLevels)
1000 return NULL;
1001 texIndex = TEXTURE_CUBE_INDEX;
1002 break;
1003 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1004 if (level > 0)
1005 return NULL;
1006 texIndex = TEXTURE_RECT_INDEX;
1007 break;
1008 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1009 if (level >= ctx->Const.MaxTextureLevels)
1010 return NULL;
1011 texIndex = TEXTURE_1D_ARRAY_INDEX;
1012 break;
1013 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1014 if (level >= ctx->Const.MaxTextureLevels)
1015 return NULL;
1016 texIndex = TEXTURE_2D_ARRAY_INDEX;
1017 break;
1018 default:
1019 return NULL;
1020 }
1021
1022 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
1023 if (!texImage) {
1024 texImage = ctx->Driver.NewTextureImage(ctx);
1025 if (!texImage) {
1026 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1027 return NULL;
1028 }
1029 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
1030 /* Set the 'back' pointer */
1031 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
1032 }
1033 return texImage;
1034 }
1035
1036
1037 /**
1038 * Get the maximum number of allowed mipmap levels.
1039 *
1040 * \param ctx GL context.
1041 * \param target texture target.
1042 *
1043 * \return the maximum number of allowed mipmap levels for the given
1044 * texture target, or zero if passed a bad target.
1045 *
1046 * \sa gl_constants.
1047 */
1048 GLint
1049 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
1050 {
1051 switch (target) {
1052 case GL_TEXTURE_1D:
1053 case GL_PROXY_TEXTURE_1D:
1054 case GL_TEXTURE_2D:
1055 case GL_PROXY_TEXTURE_2D:
1056 case GL_TEXTURE_1D_ARRAY_EXT:
1057 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1058 case GL_TEXTURE_2D_ARRAY_EXT:
1059 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1060 return ctx->Const.MaxTextureLevels;
1061 case GL_TEXTURE_3D:
1062 case GL_PROXY_TEXTURE_3D:
1063 return ctx->Const.Max3DTextureLevels;
1064 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
1065 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
1066 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
1067 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
1068 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
1069 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1070 case GL_TEXTURE_CUBE_MAP_ARB:
1071 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1072 return ctx->Const.MaxCubeTextureLevels;
1073 case GL_TEXTURE_RECTANGLE_NV:
1074 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1075 return 1;
1076 default:
1077 return 0; /* bad target */
1078 }
1079 }
1080
1081
1082
1083 #if 000 /* not used anymore */
1084 /*
1085 * glTexImage[123]D can accept a NULL image pointer. In this case we
1086 * create a texture image with unspecified image contents per the OpenGL
1087 * spec.
1088 */
1089 static GLubyte *
1090 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1091 {
1092 const GLint components = _mesa_components_in_format(format);
1093 const GLint numPixels = width * height * depth;
1094 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1095
1096 #ifdef DEBUG
1097 /*
1098 * Let's see if anyone finds this. If glTexImage2D() is called with
1099 * a NULL image pointer then load the texture image with something
1100 * interesting instead of leaving it indeterminate.
1101 */
1102 if (data) {
1103 static const char message[8][32] = {
1104 " X X XXXXX XXX X ",
1105 " XX XX X X X X X ",
1106 " X X X X X X X ",
1107 " X X XXXX XXX XXXXX ",
1108 " X X X X X X ",
1109 " X X X X X X X ",
1110 " X X XXXXX XXX X X ",
1111 " "
1112 };
1113
1114 GLubyte *imgPtr = data;
1115 GLint h, i, j, k;
1116 for (h = 0; h < depth; h++) {
1117 for (i = 0; i < height; i++) {
1118 GLint srcRow = 7 - (i % 8);
1119 for (j = 0; j < width; j++) {
1120 GLint srcCol = j % 32;
1121 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1122 for (k = 0; k < components; k++) {
1123 *imgPtr++ = texel;
1124 }
1125 }
1126 }
1127 }
1128 }
1129 #endif
1130
1131 return data;
1132 }
1133 #endif
1134
1135
1136
1137 /**
1138 * Reset the fields of a gl_texture_image struct to zero.
1139 *
1140 * \param img texture image structure.
1141 *
1142 * This is called when a proxy texture test fails, we set all the
1143 * image members (except DriverData) to zero.
1144 * It's also used in glTexImage[123]D as a safeguard to be sure all
1145 * required fields get initialized properly by the Driver.TexImage[123]D
1146 * functions.
1147 */
1148 static void
1149 clear_teximage_fields(struct gl_texture_image *img)
1150 {
1151 ASSERT(img);
1152 img->_BaseFormat = 0;
1153 img->InternalFormat = 0;
1154 img->Border = 0;
1155 img->Width = 0;
1156 img->Height = 0;
1157 img->Depth = 0;
1158 img->RowStride = 0;
1159 if (img->ImageOffsets) {
1160 _mesa_free(img->ImageOffsets);
1161 img->ImageOffsets = NULL;
1162 }
1163 img->Width2 = 0;
1164 img->Height2 = 0;
1165 img->Depth2 = 0;
1166 img->WidthLog2 = 0;
1167 img->HeightLog2 = 0;
1168 img->DepthLog2 = 0;
1169 img->Data = NULL;
1170 img->TexFormat = &_mesa_null_texformat;
1171 img->FetchTexelc = NULL;
1172 img->FetchTexelf = NULL;
1173 img->IsCompressed = 0;
1174 img->CompressedSize = 0;
1175 }
1176
1177
1178 /**
1179 * Initialize basic fields of the gl_texture_image struct.
1180 *
1181 * \param ctx GL context.
1182 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1183 * \param img texture image structure to be initialized.
1184 * \param width image width.
1185 * \param height image height.
1186 * \param depth image depth.
1187 * \param border image border.
1188 * \param internalFormat internal format.
1189 *
1190 * Fills in the fields of \p img with the given information.
1191 * Note: width, height and depth include the border.
1192 */
1193 void
1194 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1195 struct gl_texture_image *img,
1196 GLsizei width, GLsizei height, GLsizei depth,
1197 GLint border, GLenum internalFormat)
1198 {
1199 GLint i;
1200
1201 ASSERT(img);
1202 ASSERT(width >= 0);
1203 ASSERT(height >= 0);
1204 ASSERT(depth >= 0);
1205
1206 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1207 ASSERT(img->_BaseFormat > 0);
1208 img->InternalFormat = internalFormat;
1209 img->Border = border;
1210 img->Width = width;
1211 img->Height = height;
1212 img->Depth = depth;
1213
1214 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1215 img->WidthLog2 = logbase2(img->Width2);
1216
1217 if (height == 1) { /* 1-D texture */
1218 img->Height2 = 1;
1219 img->HeightLog2 = 0;
1220 }
1221 else {
1222 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1223 img->HeightLog2 = logbase2(img->Height2);
1224 }
1225
1226 if (depth == 1) { /* 2-D texture */
1227 img->Depth2 = 1;
1228 img->DepthLog2 = 0;
1229 }
1230 else {
1231 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1232 img->DepthLog2 = logbase2(img->Depth2);
1233 }
1234
1235 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1236
1237 img->IsCompressed = GL_FALSE;
1238 img->CompressedSize = 0;
1239
1240 if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
1241 (height == 1 || _mesa_is_pow_two(img->Height2)) &&
1242 (depth == 1 || _mesa_is_pow_two(img->Depth2)))
1243 img->_IsPowerOfTwo = GL_TRUE;
1244 else
1245 img->_IsPowerOfTwo = GL_FALSE;
1246
1247 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1248 img->RowStride = width;
1249 /* Allocate the ImageOffsets array and initialize to typical values.
1250 * We allocate the array for 1D/2D textures too in order to avoid special-
1251 * case code in the texstore routines.
1252 */
1253 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
1254 for (i = 0; i < depth; i++) {
1255 img->ImageOffsets[i] = i * width * height;
1256 }
1257
1258 /* Compute Width/Height/DepthScale for mipmap lod computation */
1259 if (target == GL_TEXTURE_RECTANGLE_NV) {
1260 /* scale = 1.0 since texture coords directly map to texels */
1261 img->WidthScale = 1.0;
1262 img->HeightScale = 1.0;
1263 img->DepthScale = 1.0;
1264 }
1265 else {
1266 img->WidthScale = (GLfloat) img->Width;
1267 img->HeightScale = (GLfloat) img->Height;
1268 img->DepthScale = (GLfloat) img->Depth;
1269 }
1270 }
1271
1272
1273 /**
1274 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1275 * level, width, height and depth against the ctx->Const limits for textures.
1276 *
1277 * A hardware driver might override this function if, for example, the
1278 * max 3D texture size is 512x512x64 (i.e. not a cube).
1279 *
1280 * Note that width, height, depth == 0 is not an error. However, a
1281 * texture with zero width/height/depth will be considered "incomplete"
1282 * and texturing will effectively be disabled.
1283 *
1284 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1285 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1286 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1287 * \param level as passed to glTexImage
1288 * \param internalFormat as passed to glTexImage
1289 * \param format as passed to glTexImage
1290 * \param type as passed to glTexImage
1291 * \param width as passed to glTexImage
1292 * \param height as passed to glTexImage
1293 * \param depth as passed to glTexImage
1294 * \param border as passed to glTexImage
1295 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1296 */
1297 GLboolean
1298 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1299 GLint internalFormat, GLenum format, GLenum type,
1300 GLint width, GLint height, GLint depth, GLint border)
1301 {
1302 GLint maxSize;
1303
1304 (void) internalFormat;
1305 (void) format;
1306 (void) type;
1307
1308 switch (target) {
1309 case GL_PROXY_TEXTURE_1D:
1310 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1311 if (width < 2 * border || width > 2 + maxSize ||
1312 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1313 width >0 && !_mesa_is_pow_two(width - 2 * border)) ||
1314 level >= ctx->Const.MaxTextureLevels) {
1315 /* bad width or level */
1316 return GL_FALSE;
1317 }
1318 return GL_TRUE;
1319 case GL_PROXY_TEXTURE_2D:
1320 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1321 if (width < 2 * border || width > 2 + maxSize ||
1322 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1323 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1324 height < 2 * border || height > 2 + maxSize ||
1325 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1326 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1327 level >= ctx->Const.MaxTextureLevels) {
1328 /* bad width or height or level */
1329 return GL_FALSE;
1330 }
1331 return GL_TRUE;
1332 case GL_PROXY_TEXTURE_3D:
1333 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1334 if (width < 2 * border || width > 2 + maxSize ||
1335 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1336 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1337 height < 2 * border || height > 2 + maxSize ||
1338 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1339 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1340 depth < 2 * border || depth > 2 + maxSize ||
1341 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1342 depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) ||
1343 level >= ctx->Const.Max3DTextureLevels) {
1344 /* bad width or height or depth or level */
1345 return GL_FALSE;
1346 }
1347 return GL_TRUE;
1348 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1349 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1350 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1351 level != 0) {
1352 /* bad width or height or level */
1353 return GL_FALSE;
1354 }
1355 return GL_TRUE;
1356 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1357 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1358 if (width < 2 * border || width > 2 + maxSize ||
1359 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1360 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1361 height < 2 * border || height > 2 + maxSize ||
1362 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1363 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1364 level >= ctx->Const.MaxCubeTextureLevels) {
1365 /* bad width or height */
1366 return GL_FALSE;
1367 }
1368 return GL_TRUE;
1369 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1370 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1371 if (width < 2 * border || width > 2 + maxSize ||
1372 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1373 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1374 level >= ctx->Const.MaxTextureLevels) {
1375 /* bad width or level */
1376 return GL_FALSE;
1377 }
1378
1379 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1380 return GL_FALSE;
1381 }
1382 return GL_TRUE;
1383 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1384 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1385 if (width < 2 * border || width > 2 + maxSize ||
1386 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1387 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1388 height < 2 * border || height > 2 + maxSize ||
1389 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1390 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1391 level >= ctx->Const.MaxTextureLevels) {
1392 /* bad width or height or level */
1393 return GL_FALSE;
1394 }
1395 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1396 return GL_FALSE;
1397 }
1398 return GL_TRUE;
1399 default:
1400 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1401 return GL_FALSE;
1402 }
1403 }
1404
1405
1406 /**
1407 * Helper function to determine whether a target supports compressed textures
1408 */
1409 static GLboolean
1410 target_can_be_compressed(GLcontext *ctx, GLenum target)
1411 {
1412 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1413 || ((ctx->Extensions.ARB_texture_cube_map &&
1414 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1415 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1416 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1417 || ((ctx->Extensions.MESA_texture_array &&
1418 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1419 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1420 }
1421
1422
1423 /**
1424 * Test the glTexImage[123]D() parameters for errors.
1425 *
1426 * \param ctx GL context.
1427 * \param target texture target given by the user.
1428 * \param level image level given by the user.
1429 * \param internalFormat internal format given by the user.
1430 * \param format pixel data format given by the user.
1431 * \param type pixel data type given by the user.
1432 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1433 * \param width image width given by the user.
1434 * \param height image height given by the user.
1435 * \param depth image depth given by the user.
1436 * \param border image border given by the user.
1437 *
1438 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1439 *
1440 * Verifies each of the parameters against the constants specified in
1441 * __GLcontextRec::Const and the supported extensions, and according to the
1442 * OpenGL specification.
1443 */
1444 static GLboolean
1445 texture_error_check( GLcontext *ctx, GLenum target,
1446 GLint level, GLint internalFormat,
1447 GLenum format, GLenum type,
1448 GLuint dimensions,
1449 GLint width, GLint height,
1450 GLint depth, GLint border )
1451 {
1452 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1453 GLboolean sizeOK = GL_TRUE;
1454 GLboolean colorFormat, indexFormat;
1455 GLenum proxy_target;
1456
1457 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1458 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1459 if (!isProxy) {
1460 _mesa_error(ctx, GL_INVALID_VALUE,
1461 "glTexImage%dD(level=%d)", dimensions, level);
1462 }
1463 return GL_TRUE;
1464 }
1465
1466 /* Check border */
1467 if (border < 0 || border > 1 ||
1468 ((target == GL_TEXTURE_RECTANGLE_NV ||
1469 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1470 if (!isProxy) {
1471 _mesa_error(ctx, GL_INVALID_VALUE,
1472 "glTexImage%dD(border=%d)", dimensions, border);
1473 }
1474 return GL_TRUE;
1475 }
1476
1477 if (width < 0 || height < 0 || depth < 0) {
1478 if (!isProxy) {
1479 _mesa_error(ctx, GL_INVALID_VALUE,
1480 "glTexImage%dD(width, height or depth < 0)", dimensions);
1481 }
1482 return GL_TRUE;
1483 }
1484
1485 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1486 * level, width, height and depth.
1487 */
1488 if (dimensions == 1) {
1489 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1490 proxy_target = GL_PROXY_TEXTURE_1D;
1491 height = 1;
1492 depth = 1;
1493 }
1494 else {
1495 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1496 return GL_TRUE;
1497 }
1498 }
1499 else if (dimensions == 2) {
1500 depth = 1;
1501 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1502 proxy_target = GL_PROXY_TEXTURE_2D;
1503 }
1504 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1505 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1506 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1507 if (!ctx->Extensions.ARB_texture_cube_map) {
1508 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1509 return GL_TRUE;
1510 }
1511 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1512 sizeOK = (width == height);
1513 }
1514 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1515 target == GL_TEXTURE_RECTANGLE_NV) {
1516 if (!ctx->Extensions.NV_texture_rectangle) {
1517 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1518 return GL_TRUE;
1519 }
1520 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1521 }
1522 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1523 target == GL_TEXTURE_1D_ARRAY_EXT) {
1524 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1525 }
1526 else {
1527 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1528 return GL_TRUE;
1529 }
1530 }
1531 else if (dimensions == 3) {
1532 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1533 proxy_target = GL_PROXY_TEXTURE_3D;
1534 }
1535 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1536 target == GL_TEXTURE_2D_ARRAY_EXT) {
1537 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1538 }
1539 else {
1540 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1541 return GL_TRUE;
1542 }
1543 }
1544 else {
1545 _mesa_problem( ctx, "bad dims in texture_error_check" );
1546 return GL_TRUE;
1547 }
1548
1549 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1550 internalFormat, format,
1551 type, width, height,
1552 depth, border);
1553 if (!sizeOK) {
1554 if (!isProxy) {
1555 _mesa_error(ctx, GL_INVALID_VALUE,
1556 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1557 dimensions, level, width, height, depth);
1558 }
1559 return GL_TRUE;
1560 }
1561
1562 /* Check internalFormat */
1563 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1564 if (!isProxy) {
1565 _mesa_error(ctx, GL_INVALID_VALUE,
1566 "glTexImage%dD(internalFormat=0x%x)",
1567 dimensions, internalFormat);
1568 }
1569 return GL_TRUE;
1570 }
1571
1572 /* Check incoming image format and type */
1573 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1574 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1575 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1576 */
1577 if (!isProxy) {
1578 _mesa_error(ctx, GL_INVALID_OPERATION,
1579 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1580 dimensions, format, type);
1581 }
1582 return GL_TRUE;
1583 }
1584
1585 /* make sure internal format and format basically agree */
1586 colorFormat = _mesa_is_color_format(format);
1587 indexFormat = is_index_format(format);
1588 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1589 (is_index_format(internalFormat) && !indexFormat) ||
1590 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1591 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1592 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format)) ||
1593 (is_dudv_format(internalFormat) != is_dudv_format(format))) {
1594 if (!isProxy)
1595 _mesa_error(ctx, GL_INVALID_OPERATION,
1596 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1597 dimensions, internalFormat, format);
1598 return GL_TRUE;
1599 }
1600
1601 /* additional checks for ycbcr textures */
1602 if (internalFormat == GL_YCBCR_MESA) {
1603 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1604 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1605 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1606 char message[100];
1607 _mesa_sprintf(message,
1608 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1609 _mesa_error(ctx, GL_INVALID_ENUM, message);
1610 return GL_TRUE; /* error */
1611 }
1612 if (target != GL_TEXTURE_2D &&
1613 target != GL_PROXY_TEXTURE_2D &&
1614 target != GL_TEXTURE_RECTANGLE_NV &&
1615 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1616 if (!isProxy)
1617 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1618 return GL_TRUE;
1619 }
1620 if (border != 0) {
1621 if (!isProxy) {
1622 char message[100];
1623 _mesa_sprintf(message,
1624 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1625 dimensions, border);
1626 _mesa_error(ctx, GL_INVALID_VALUE, message);
1627 }
1628 return GL_TRUE;
1629 }
1630 }
1631
1632 /* additional checks for depth textures */
1633 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1634 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1635 if (target != GL_TEXTURE_1D &&
1636 target != GL_PROXY_TEXTURE_1D &&
1637 target != GL_TEXTURE_2D &&
1638 target != GL_PROXY_TEXTURE_2D &&
1639 target != GL_TEXTURE_RECTANGLE_ARB &&
1640 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1641 if (!isProxy)
1642 _mesa_error(ctx, GL_INVALID_ENUM,
1643 "glTexImage(target/internalFormat)");
1644 return GL_TRUE;
1645 }
1646 }
1647
1648 /* additional checks for compressed textures */
1649 if (is_compressed_format(ctx, internalFormat)) {
1650 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1651 _mesa_error(ctx, GL_INVALID_ENUM,
1652 "glTexImage%d(target)", dimensions);
1653 return GL_TRUE;
1654 }
1655 if (border != 0) {
1656 if (!isProxy) {
1657 _mesa_error(ctx, GL_INVALID_OPERATION,
1658 "glTexImage%D(border!=0)", dimensions);
1659 }
1660 return GL_TRUE;
1661 }
1662 }
1663
1664 /* if we get here, the parameters are OK */
1665 return GL_FALSE;
1666 }
1667
1668
1669 /**
1670 * Test glTexSubImage[123]D() parameters for errors.
1671 *
1672 * \param ctx GL context.
1673 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1674 * \param target texture target given by the user.
1675 * \param level image level given by the user.
1676 * \param xoffset sub-image x offset given by the user.
1677 * \param yoffset sub-image y offset given by the user.
1678 * \param zoffset sub-image z offset given by the user.
1679 * \param format pixel data format given by the user.
1680 * \param type pixel data type given by the user.
1681 * \param width image width given by the user.
1682 * \param height image height given by the user.
1683 * \param depth image depth 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 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1693 GLenum target, GLint level,
1694 GLint xoffset, GLint yoffset, GLint zoffset,
1695 GLint width, GLint height, GLint depth,
1696 GLenum format, GLenum type )
1697 {
1698 /* Check target */
1699 if (dimensions == 1) {
1700 if (target != GL_TEXTURE_1D) {
1701 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1702 return GL_TRUE;
1703 }
1704 }
1705 else if (dimensions == 2) {
1706 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1707 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1708 if (!ctx->Extensions.ARB_texture_cube_map) {
1709 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1710 return GL_TRUE;
1711 }
1712 }
1713 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1714 if (!ctx->Extensions.NV_texture_rectangle) {
1715 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1716 return GL_TRUE;
1717 }
1718 }
1719 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1720 if (!ctx->Extensions.MESA_texture_array) {
1721 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1722 return GL_TRUE;
1723 }
1724 }
1725 else if (target != GL_TEXTURE_2D) {
1726 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1727 return GL_TRUE;
1728 }
1729 }
1730 else if (dimensions == 3) {
1731 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1732 if (!ctx->Extensions.MESA_texture_array) {
1733 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1734 return GL_TRUE;
1735 }
1736 }
1737 else if (target != GL_TEXTURE_3D) {
1738 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1739 return GL_TRUE;
1740 }
1741 }
1742 else {
1743 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1744 return GL_TRUE;
1745 }
1746
1747 /* Basic level check */
1748 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1749 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1750 return GL_TRUE;
1751 }
1752
1753 if (width < 0) {
1754 _mesa_error(ctx, GL_INVALID_VALUE,
1755 "glTexSubImage%dD(width=%d)", dimensions, width);
1756 return GL_TRUE;
1757 }
1758 if (height < 0 && dimensions > 1) {
1759 _mesa_error(ctx, GL_INVALID_VALUE,
1760 "glTexSubImage%dD(height=%d)", dimensions, height);
1761 return GL_TRUE;
1762 }
1763 if (depth < 0 && dimensions > 2) {
1764 _mesa_error(ctx, GL_INVALID_VALUE,
1765 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1766 return GL_TRUE;
1767 }
1768
1769 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1770 _mesa_error(ctx, GL_INVALID_ENUM,
1771 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1772 dimensions, format, type);
1773 return GL_TRUE;
1774 }
1775
1776 return GL_FALSE;
1777 }
1778
1779 static GLboolean
1780 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1781 GLenum target, GLint level,
1782 GLint xoffset, GLint yoffset, GLint zoffset,
1783 GLint width, GLint height, GLint depth,
1784 GLenum format, GLenum type,
1785 const struct gl_texture_image *destTex )
1786 {
1787 if (!destTex) {
1788 /* undefined image level */
1789 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1790 return GL_TRUE;
1791 }
1792
1793 if (xoffset < -((GLint)destTex->Border)) {
1794 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1795 dimensions);
1796 return GL_TRUE;
1797 }
1798 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1799 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1800 dimensions);
1801 return GL_TRUE;
1802 }
1803 if (dimensions > 1) {
1804 if (yoffset < -((GLint)destTex->Border)) {
1805 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1806 dimensions);
1807 return GL_TRUE;
1808 }
1809 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1810 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1811 dimensions);
1812 return GL_TRUE;
1813 }
1814 }
1815 if (dimensions > 2) {
1816 if (zoffset < -((GLint)destTex->Border)) {
1817 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1818 return GL_TRUE;
1819 }
1820 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1821 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1822 return GL_TRUE;
1823 }
1824 }
1825
1826 #if FEATURE_EXT_texture_sRGB
1827 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1828 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1829 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1830 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1831 if ((width & 0x3) || (height & 0x3) ||
1832 (xoffset & 0x3) || (yoffset & 0x3))
1833 _mesa_error(ctx, GL_INVALID_OPERATION,
1834 "glTexSubImage%dD(size or offset not multiple of 4)",
1835 dimensions);
1836 return GL_TRUE;
1837 }
1838 #endif
1839
1840 if (destTex->IsCompressed) {
1841 if (!target_can_be_compressed(ctx, target)) {
1842 _mesa_error(ctx, GL_INVALID_ENUM,
1843 "glTexSubImage%D(target)", dimensions);
1844 return GL_TRUE;
1845 }
1846 /* offset must be multiple of 4 */
1847 if ((xoffset & 3) || (yoffset & 3)) {
1848 _mesa_error(ctx, GL_INVALID_OPERATION,
1849 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1850 return GL_TRUE;
1851 }
1852 /* size must be multiple of 4 or equal to whole texture size */
1853 if ((width & 3) && (GLuint) width != destTex->Width) {
1854 _mesa_error(ctx, GL_INVALID_OPERATION,
1855 "glTexSubImage%D(width)", dimensions);
1856 return GL_TRUE;
1857 }
1858 if ((height & 3) && (GLuint) height != destTex->Height) {
1859 _mesa_error(ctx, GL_INVALID_OPERATION,
1860 "glTexSubImage%D(width)", dimensions);
1861 return GL_TRUE;
1862 }
1863 }
1864
1865 return GL_FALSE;
1866 }
1867
1868
1869 /**
1870 * Test glCopyTexImage[12]D() parameters for errors.
1871 *
1872 * \param ctx GL context.
1873 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1874 * \param target texture target given by the user.
1875 * \param level image level given by the user.
1876 * \param internalFormat internal format given by the user.
1877 * \param width image width given by the user.
1878 * \param height image height given by the user.
1879 * \param border texture border.
1880 *
1881 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1882 *
1883 * Verifies each of the parameters against the constants specified in
1884 * __GLcontextRec::Const and the supported extensions, and according to the
1885 * OpenGL specification.
1886 */
1887 static GLboolean
1888 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1889 GLenum target, GLint level, GLint internalFormat,
1890 GLint width, GLint height, GLint border )
1891 {
1892 GLenum type;
1893 GLboolean sizeOK;
1894 GLint format;
1895
1896 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1897 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1898 _mesa_error(ctx, GL_INVALID_VALUE,
1899 "glCopyTexImage%dD(level=%d)", dimensions, level);
1900 return GL_TRUE;
1901 }
1902
1903 /* Check that the source buffer is complete */
1904 if (ctx->ReadBuffer->Name) {
1905 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1906 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1907 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1908 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1909 return GL_TRUE;
1910 }
1911 }
1912
1913 /* Check border */
1914 if (border < 0 || border > 1 ||
1915 ((target == GL_TEXTURE_RECTANGLE_NV ||
1916 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1917 return GL_TRUE;
1918 }
1919
1920 format = _mesa_base_tex_format(ctx, internalFormat);
1921 if (format < 0) {
1922 _mesa_error(ctx, GL_INVALID_VALUE,
1923 "glCopyTexImage%dD(internalFormat)", dimensions);
1924 return GL_TRUE;
1925 }
1926
1927 /* NOTE: the format and type aren't really significant for
1928 * TestProxyTexImage(). Only the internalformat really matters.
1929 if (!_mesa_source_buffer_exists(ctx, format)) {
1930 _mesa_error(ctx, GL_INVALID_OPERATION,
1931 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1932 return GL_TRUE;
1933 }
1934
1935 */
1936 type = GL_FLOAT;
1937
1938 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1939 * level, width, height and depth.
1940 */
1941 if (dimensions == 1) {
1942 if (target == GL_TEXTURE_1D) {
1943 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1944 level, internalFormat,
1945 format, type,
1946 width, 1, 1, border);
1947 }
1948 else {
1949 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1950 return GL_TRUE;
1951 }
1952 }
1953 else if (dimensions == 2) {
1954 if (target == GL_TEXTURE_2D) {
1955 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1956 level, internalFormat,
1957 format, type,
1958 width, height, 1, border);
1959 }
1960 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1961 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1962 if (!ctx->Extensions.ARB_texture_cube_map) {
1963 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1964 return GL_TRUE;
1965 }
1966 sizeOK = (width == height) &&
1967 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1968 level, internalFormat, format, type,
1969 width, height, 1, border);
1970 }
1971 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1972 if (!ctx->Extensions.NV_texture_rectangle) {
1973 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1974 return GL_TRUE;
1975 }
1976 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1977 GL_PROXY_TEXTURE_RECTANGLE_NV,
1978 level, internalFormat,
1979 format, type,
1980 width, height, 1, border);
1981 }
1982 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1983 if (!ctx->Extensions.MESA_texture_array) {
1984 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1985 return GL_TRUE;
1986 }
1987 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1988 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1989 level, internalFormat,
1990 format, type,
1991 width, height, 1, border);
1992 }
1993 else {
1994 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1995 return GL_TRUE;
1996 }
1997 }
1998 else {
1999 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
2000 return GL_TRUE;
2001 }
2002
2003 if (!sizeOK) {
2004 if (dimensions == 1) {
2005 _mesa_error(ctx, GL_INVALID_VALUE,
2006 "glCopyTexImage1D(width=%d)", width);
2007 }
2008 else {
2009 ASSERT(dimensions == 2);
2010 _mesa_error(ctx, GL_INVALID_VALUE,
2011 "glCopyTexImage2D(width=%d, height=%d)", width, height);
2012 }
2013 return GL_TRUE;
2014 }
2015
2016 if (is_compressed_format(ctx, internalFormat)) {
2017 if (!target_can_be_compressed(ctx, target)) {
2018 _mesa_error(ctx, GL_INVALID_ENUM,
2019 "glCopyTexImage%d(target)", dimensions);
2020 return GL_TRUE;
2021 }
2022 if (border != 0) {
2023 _mesa_error(ctx, GL_INVALID_OPERATION,
2024 "glCopyTexImage%D(border!=0)", dimensions);
2025 return GL_TRUE;
2026 }
2027 }
2028 else if (is_depth_format(internalFormat)) {
2029 /* make sure we have depth/stencil buffers */
2030 if (!ctx->ReadBuffer->_DepthBuffer) {
2031 _mesa_error(ctx, GL_INVALID_OPERATION,
2032 "glCopyTexImage%D(no depth)", dimensions);
2033 return GL_TRUE;
2034 }
2035 }
2036 else if (is_depthstencil_format(internalFormat)) {
2037 /* make sure we have depth/stencil buffers */
2038 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2039 _mesa_error(ctx, GL_INVALID_OPERATION,
2040 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
2041 return GL_TRUE;
2042 }
2043 }
2044
2045 /* if we get here, the parameters are OK */
2046 return GL_FALSE;
2047 }
2048
2049
2050 /**
2051 * Test glCopyTexSubImage[12]D() parameters for errors.
2052 * Note that this is the first part of error checking.
2053 * See also copytexsubimage_error_check2() below for the second part.
2054 *
2055 * \param ctx GL context.
2056 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2057 * \param target texture target given by the user.
2058 * \param level image level given by the user.
2059 *
2060 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2061 */
2062 static GLboolean
2063 copytexsubimage_error_check1( GLcontext *ctx, GLuint dimensions,
2064 GLenum target, GLint level)
2065 {
2066 /* Check that the source buffer is complete */
2067 if (ctx->ReadBuffer->Name) {
2068 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2069 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2070 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2071 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2072 return GL_TRUE;
2073 }
2074 }
2075
2076 /* Check target */
2077 if (dimensions == 1) {
2078 if (target != GL_TEXTURE_1D) {
2079 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2080 return GL_TRUE;
2081 }
2082 }
2083 else if (dimensions == 2) {
2084 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2085 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2086 if (!ctx->Extensions.ARB_texture_cube_map) {
2087 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2088 return GL_TRUE;
2089 }
2090 }
2091 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2092 if (!ctx->Extensions.NV_texture_rectangle) {
2093 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2094 return GL_TRUE;
2095 }
2096 }
2097 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2098 if (!ctx->Extensions.MESA_texture_array) {
2099 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2100 return GL_TRUE;
2101 }
2102 }
2103 else if (target != GL_TEXTURE_2D) {
2104 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2105 return GL_TRUE;
2106 }
2107 }
2108 else if (dimensions == 3) {
2109 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2110 (!ctx->Extensions.MESA_texture_array))
2111 && (target != GL_TEXTURE_3D)) {
2112 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2113 return GL_TRUE;
2114 }
2115 }
2116
2117 /* Check level */
2118 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2119 _mesa_error(ctx, GL_INVALID_VALUE,
2120 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2121 return GL_TRUE;
2122 }
2123
2124 return GL_FALSE;
2125 }
2126
2127
2128 /**
2129 * Second part of error checking for glCopyTexSubImage[12]D().
2130 * \param xoffset sub-image x offset given by the user.
2131 * \param yoffset sub-image y offset given by the user.
2132 * \param zoffset sub-image z offset given by the user.
2133 * \param width image width given by the user.
2134 * \param height image height given by the user.
2135 */
2136 static GLboolean
2137 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2138 GLenum target, GLint level,
2139 GLint xoffset, GLint yoffset, GLint zoffset,
2140 GLsizei width, GLsizei height,
2141 const struct gl_texture_image *teximage )
2142 {
2143 /* check that dest tex image exists */
2144 if (!teximage) {
2145 _mesa_error(ctx, GL_INVALID_OPERATION,
2146 "glCopyTexSubImage%dD(undefined texture level: %d)",
2147 dimensions, level);
2148 return GL_TRUE;
2149 }
2150
2151 /* Check size */
2152 if (width < 0) {
2153 _mesa_error(ctx, GL_INVALID_VALUE,
2154 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2155 return GL_TRUE;
2156 }
2157 if (dimensions > 1 && height < 0) {
2158 _mesa_error(ctx, GL_INVALID_VALUE,
2159 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2160 return GL_TRUE;
2161 }
2162
2163 /* check x/y offsets */
2164 if (xoffset < -((GLint)teximage->Border)) {
2165 _mesa_error(ctx, GL_INVALID_VALUE,
2166 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2167 return GL_TRUE;
2168 }
2169 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2170 _mesa_error(ctx, GL_INVALID_VALUE,
2171 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2172 return GL_TRUE;
2173 }
2174 if (dimensions > 1) {
2175 if (yoffset < -((GLint)teximage->Border)) {
2176 _mesa_error(ctx, GL_INVALID_VALUE,
2177 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2178 return GL_TRUE;
2179 }
2180 /* NOTE: we're adding the border here, not subtracting! */
2181 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2182 _mesa_error(ctx, GL_INVALID_VALUE,
2183 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2184 return GL_TRUE;
2185 }
2186 }
2187
2188 /* check z offset */
2189 if (dimensions > 2) {
2190 if (zoffset < -((GLint)teximage->Border)) {
2191 _mesa_error(ctx, GL_INVALID_VALUE,
2192 "glCopyTexSubImage%dD(zoffset)", dimensions);
2193 return GL_TRUE;
2194 }
2195 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2196 _mesa_error(ctx, GL_INVALID_VALUE,
2197 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2198 return GL_TRUE;
2199 }
2200 }
2201
2202 if (teximage->IsCompressed) {
2203 if (!target_can_be_compressed(ctx, target)) {
2204 _mesa_error(ctx, GL_INVALID_ENUM,
2205 "glCopyTexSubImage%d(target)", dimensions);
2206 return GL_TRUE;
2207 }
2208 /* offset must be multiple of 4 */
2209 if ((xoffset & 3) || (yoffset & 3)) {
2210 _mesa_error(ctx, GL_INVALID_VALUE,
2211 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2212 return GL_TRUE;
2213 }
2214 /* size must be multiple of 4 */
2215 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2216 _mesa_error(ctx, GL_INVALID_VALUE,
2217 "glCopyTexSubImage%D(width)", dimensions);
2218 return GL_TRUE;
2219 }
2220 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2221 _mesa_error(ctx, GL_INVALID_VALUE,
2222 "glCopyTexSubImage%D(height)", dimensions);
2223 return GL_TRUE;
2224 }
2225 }
2226
2227 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2228 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2229 return GL_TRUE;
2230 }
2231
2232 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2233 _mesa_error(ctx, GL_INVALID_OPERATION,
2234 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2235 dimensions, teximage->_BaseFormat);
2236 return GL_TRUE;
2237 }
2238
2239 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2240 if (!ctx->ReadBuffer->_DepthBuffer) {
2241 _mesa_error(ctx, GL_INVALID_OPERATION,
2242 "glCopyTexSubImage%D(no depth buffer)",
2243 dimensions);
2244 return GL_TRUE;
2245 }
2246 }
2247 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2248 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2249 _mesa_error(ctx, GL_INVALID_OPERATION,
2250 "glCopyTexSubImage%D(no depth/stencil buffer)",
2251 dimensions);
2252 return GL_TRUE;
2253 }
2254 }
2255
2256 /* if we get here, the parameters are OK */
2257 return GL_FALSE;
2258 }
2259
2260
2261 /**
2262 * Get texture image. Called by glGetTexImage.
2263 *
2264 * \param target texture target.
2265 * \param level image level.
2266 * \param format pixel data format for returned image.
2267 * \param type pixel data type for returned image.
2268 * \param pixels returned pixel data.
2269 */
2270 void GLAPIENTRY
2271 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2272 GLenum type, GLvoid *pixels )
2273 {
2274 const struct gl_texture_unit *texUnit;
2275 struct gl_texture_object *texObj;
2276 struct gl_texture_image *texImage;
2277 GLint maxLevels = 0;
2278 GET_CURRENT_CONTEXT(ctx);
2279 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2280
2281 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2282 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2283 if (!texObj || _mesa_is_proxy_texture(target)) {
2284 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2285 return;
2286 }
2287
2288 maxLevels = _mesa_max_texture_levels(ctx, target);
2289 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2290
2291 if (level < 0 || level >= maxLevels) {
2292 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2293 return;
2294 }
2295
2296 if (_mesa_sizeof_packed_type(type) <= 0) {
2297 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2298 return;
2299 }
2300
2301 if (_mesa_components_in_format(format) <= 0 ||
2302 format == GL_STENCIL_INDEX) {
2303 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2304 return;
2305 }
2306
2307 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2308 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2309 return;
2310 }
2311
2312 if (!ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2313 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2314 return;
2315 }
2316
2317 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2318 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2319 return;
2320 }
2321
2322 if (!ctx->Extensions.EXT_packed_depth_stencil
2323 && is_depthstencil_format(format)) {
2324 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2325 return;
2326 }
2327
2328 if (!ctx->Extensions.ATI_envmap_bumpmap
2329 && is_dudv_format(format)) {
2330 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2331 return;
2332 }
2333
2334 _mesa_lock_texture(ctx, texObj);
2335 {
2336 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2337 if (!texImage) {
2338 /* invalid mipmap level, not an error */
2339 goto out;
2340 }
2341
2342
2343 /* Make sure the requested image format is compatible with the
2344 * texture's format. Note that a color index texture can be converted
2345 * to RGBA so that combo is allowed.
2346 */
2347 if (_mesa_is_color_format(format)
2348 && !_mesa_is_color_format(texImage->TexFormat->BaseFormat)
2349 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2350 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2351 goto out;
2352 }
2353 else if (is_index_format(format)
2354 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2355 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2356 goto out;
2357 }
2358 else if (is_depth_format(format)
2359 && !is_depth_format(texImage->TexFormat->BaseFormat)
2360 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2361 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2362 goto out;
2363 }
2364 else if (is_ycbcr_format(format)
2365 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2366 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2367 goto out;
2368 }
2369 else if (is_depthstencil_format(format)
2370 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2371 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2372 goto out;
2373 }
2374 else if (is_dudv_format(format)
2375 && !is_dudv_format(texImage->TexFormat->BaseFormat)) {
2376 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2377 goto out;
2378 }
2379
2380 if (ctx->Pack.BufferObj->Name) {
2381 /* packing texture image into a PBO */
2382 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2383 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2384 texImage->Height, texImage->Depth,
2385 format, type, pixels)) {
2386 _mesa_error(ctx, GL_INVALID_OPERATION,
2387 "glGetTexImage(invalid PBO access)");
2388 goto out;
2389 }
2390 }
2391
2392 /* typically, this will call _mesa_get_teximage() */
2393 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2394 texObj, texImage);
2395
2396 }
2397 out:
2398 _mesa_unlock_texture(ctx, texObj);
2399 }
2400
2401
2402 /** Callback info for walking over FBO hash table */
2403 struct cb_info
2404 {
2405 GLcontext *ctx;
2406 struct gl_texture_object *texObj;
2407 GLuint level, face;
2408 };
2409
2410
2411 /**
2412 * Check render to texture callback. Called from _mesa_HashWalk().
2413 */
2414 static void
2415 check_rtt_cb(GLuint key, void *data, void *userData)
2416 {
2417 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2418 const struct cb_info *info = (struct cb_info *) userData;
2419 GLcontext *ctx = info->ctx;
2420 const struct gl_texture_object *texObj = info->texObj;
2421 const GLuint level = info->level, face = info->face;
2422
2423 /* If this is a user-created FBO */
2424 if (fb->Name) {
2425 GLuint i;
2426 /* check if any of the FBO's attachments point to 'texObj' */
2427 for (i = 0; i < BUFFER_COUNT; i++) {
2428 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2429 if (att->Type == GL_TEXTURE &&
2430 att->Texture == texObj &&
2431 att->TextureLevel == level &&
2432 att->CubeMapFace == face) {
2433 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2434 /* Tell driver about the new renderbuffer texture */
2435 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2436 /* Mark fb status as indeterminate to force re-validation */
2437 fb->_Status = 0;
2438 }
2439 }
2440 }
2441 }
2442
2443
2444 /**
2445 * When a texture image is specified we have to check if it's bound to
2446 * any framebuffer objects (render to texture) in order to detect changes
2447 * in size or format since that effects FBO completeness.
2448 * Any FBOs rendering into the texture must be re-validated.
2449 */
2450 static void
2451 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2452 GLuint face, GLuint level)
2453 {
2454 /* Only check this texture if it's been marked as RenderToTexture */
2455 if (texObj->_RenderToTexture) {
2456 struct cb_info info;
2457 info.ctx = ctx;
2458 info.texObj = texObj;
2459 info.level = level;
2460 info.face = face;
2461 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2462 }
2463 }
2464
2465
2466 /** Debug helper: override the user-requested internal format */
2467 static GLenum
2468 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2469 {
2470 #if 0
2471 if (internalFormat == GL_RGBA16F_ARB ||
2472 internalFormat == GL_RGBA32F_ARB) {
2473 printf("Convert rgba float tex to int %d x %d\n", width, height);
2474 return GL_RGBA;
2475 }
2476 else if (internalFormat == GL_RGB16F_ARB ||
2477 internalFormat == GL_RGB32F_ARB) {
2478 printf("Convert rgb float tex to int %d x %d\n", width, height);
2479 return GL_RGB;
2480 }
2481 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2482 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2483 printf("Convert luminance float tex to int %d x %d\n", width, height);
2484 return GL_LUMINANCE_ALPHA;
2485 }
2486 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2487 internalFormat == GL_LUMINANCE32F_ARB) {
2488 printf("Convert luminance float tex to int %d x %d\n", width, height);
2489 return GL_LUMINANCE;
2490 }
2491 else if (internalFormat == GL_ALPHA16F_ARB ||
2492 internalFormat == GL_ALPHA32F_ARB) {
2493 printf("Convert luminance float tex to int %d x %d\n", width, height);
2494 return GL_ALPHA;
2495 }
2496 /*
2497 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2498 internalFormat = GL_RGBA;
2499 }
2500 */
2501 else {
2502 return internalFormat;
2503 }
2504 #else
2505 return internalFormat;
2506 #endif
2507 }
2508
2509
2510 /*
2511 * Called from the API. Note that width includes the border.
2512 */
2513 void GLAPIENTRY
2514 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2515 GLsizei width, GLint border, GLenum format,
2516 GLenum type, const GLvoid *pixels )
2517 {
2518 GLsizei postConvWidth = width;
2519 GET_CURRENT_CONTEXT(ctx);
2520 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2521
2522 internalFormat = override_internal_format(internalFormat, width, 1);
2523
2524 #if FEATURE_convolve
2525 if (_mesa_is_color_format(internalFormat)) {
2526 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2527 }
2528 #endif
2529
2530 if (target == GL_TEXTURE_1D) {
2531 /* non-proxy target */
2532 struct gl_texture_unit *texUnit;
2533 struct gl_texture_object *texObj;
2534 struct gl_texture_image *texImage;
2535 const GLuint face = _mesa_tex_target_to_face(target);
2536
2537 if (texture_error_check(ctx, target, level, internalFormat,
2538 format, type, 1, postConvWidth, 1, 1, border)) {
2539 return; /* error was recorded */
2540 }
2541
2542 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2543 _mesa_update_state(ctx);
2544
2545 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2546 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2547 _mesa_lock_texture(ctx, texObj);
2548 {
2549 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2550 if (!texImage) {
2551 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2552 goto out;
2553 }
2554
2555 if (texImage->Data) {
2556 ctx->Driver.FreeTexImageData( ctx, texImage );
2557 }
2558
2559 ASSERT(texImage->Data == NULL);
2560
2561 clear_teximage_fields(texImage); /* not really needed, but helpful */
2562 _mesa_init_teximage_fields(ctx, target, texImage,
2563 postConvWidth, 1, 1,
2564 border, internalFormat);
2565
2566 ASSERT(ctx->Driver.TexImage1D);
2567
2568 /* Give the texture to the driver! <pixels> may be null! */
2569 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2570 width, border, format, type, pixels,
2571 &ctx->Unpack, texObj, texImage);
2572
2573 ASSERT(texImage->TexFormat);
2574
2575 update_fbo_texture(ctx, texObj, face, level);
2576
2577 /* state update */
2578 texObj->_Complete = GL_FALSE;
2579 ctx->NewState |= _NEW_TEXTURE;
2580 }
2581 out:
2582 _mesa_unlock_texture(ctx, texObj);
2583 }
2584 else if (target == GL_PROXY_TEXTURE_1D) {
2585 /* Proxy texture: check for errors and update proxy state */
2586 struct gl_texture_image *texImage;
2587 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2588 if (texture_error_check(ctx, target, level, internalFormat,
2589 format, type, 1, postConvWidth, 1, 1, border)) {
2590 /* when error, clear all proxy texture image parameters */
2591 if (texImage)
2592 clear_teximage_fields(texImage);
2593 }
2594 else {
2595 /* no error, set the tex image parameters */
2596 ASSERT(texImage);
2597 _mesa_init_teximage_fields(ctx, target, texImage,
2598 postConvWidth, 1, 1,
2599 border, internalFormat);
2600 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2601 internalFormat, format, type);
2602 }
2603 }
2604 else {
2605 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2606 return;
2607 }
2608 }
2609
2610
2611 void GLAPIENTRY
2612 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2613 GLsizei width, GLsizei height, GLint border,
2614 GLenum format, GLenum type,
2615 const GLvoid *pixels )
2616 {
2617 GLsizei postConvWidth = width, postConvHeight = height;
2618 GET_CURRENT_CONTEXT(ctx);
2619 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2620
2621 internalFormat = override_internal_format(internalFormat, width, height);
2622
2623 #if FEATURE_convolve
2624 if (_mesa_is_color_format(internalFormat)) {
2625 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2626 &postConvHeight);
2627 }
2628 #endif
2629
2630 if (target == GL_TEXTURE_2D ||
2631 (ctx->Extensions.ARB_texture_cube_map &&
2632 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2633 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2634 (ctx->Extensions.NV_texture_rectangle &&
2635 target == GL_TEXTURE_RECTANGLE_NV) ||
2636 (ctx->Extensions.MESA_texture_array &&
2637 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2638 /* non-proxy target */
2639 struct gl_texture_unit *texUnit;
2640 struct gl_texture_object *texObj;
2641 struct gl_texture_image *texImage;
2642 const GLuint face = _mesa_tex_target_to_face(target);
2643
2644 if (texture_error_check(ctx, target, level, internalFormat,
2645 format, type, 2, postConvWidth, postConvHeight,
2646 1, border)) {
2647 return; /* error was recorded */
2648 }
2649
2650 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2651 _mesa_update_state(ctx);
2652
2653 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2654 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2655 _mesa_lock_texture(ctx, texObj);
2656 {
2657 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2658 if (!texImage) {
2659 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2660 goto out;
2661 }
2662
2663 if (texImage->Data) {
2664 ctx->Driver.FreeTexImageData( ctx, texImage );
2665 }
2666
2667 ASSERT(texImage->Data == NULL);
2668 clear_teximage_fields(texImage); /* not really needed, but helpful */
2669 _mesa_init_teximage_fields(ctx, target, texImage,
2670 postConvWidth, postConvHeight, 1,
2671 border, internalFormat);
2672
2673 ASSERT(ctx->Driver.TexImage2D);
2674
2675 /* Give the texture to the driver! <pixels> may be null! */
2676 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2677 width, height, border, format, type, pixels,
2678 &ctx->Unpack, texObj, texImage);
2679
2680 ASSERT(texImage->TexFormat);
2681
2682 update_fbo_texture(ctx, texObj, face, level);
2683
2684 /* state update */
2685 texObj->_Complete = GL_FALSE;
2686 ctx->NewState |= _NEW_TEXTURE;
2687 }
2688 out:
2689 _mesa_unlock_texture(ctx, texObj);
2690 }
2691 else if (target == GL_PROXY_TEXTURE_2D ||
2692 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2693 ctx->Extensions.ARB_texture_cube_map) ||
2694 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2695 ctx->Extensions.NV_texture_rectangle) ||
2696 (ctx->Extensions.MESA_texture_array &&
2697 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2698 /* Proxy texture: check for errors and update proxy state */
2699 struct gl_texture_image *texImage;
2700 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2701 if (texture_error_check(ctx, target, level, internalFormat,
2702 format, type, 2, postConvWidth, postConvHeight,
2703 1, border)) {
2704 /* when error, clear all proxy texture image parameters */
2705 if (texImage)
2706 clear_teximage_fields(texImage);
2707 }
2708 else {
2709 /* no error, set the tex image parameters */
2710 _mesa_init_teximage_fields(ctx, target, texImage,
2711 postConvWidth, postConvHeight, 1,
2712 border, internalFormat);
2713 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2714 internalFormat, format, type);
2715 }
2716 }
2717 else {
2718 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2719 return;
2720 }
2721 }
2722
2723
2724 /*
2725 * Called by the API or display list executor.
2726 * Note that width and height include the border.
2727 */
2728 void GLAPIENTRY
2729 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2730 GLsizei width, GLsizei height, GLsizei depth,
2731 GLint border, GLenum format, GLenum type,
2732 const GLvoid *pixels )
2733 {
2734 GET_CURRENT_CONTEXT(ctx);
2735 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2736
2737 internalFormat = override_internal_format(internalFormat, width, height);
2738
2739 if (target == GL_TEXTURE_3D ||
2740 (ctx->Extensions.MESA_texture_array &&
2741 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2742 /* non-proxy target */
2743 struct gl_texture_unit *texUnit;
2744 struct gl_texture_object *texObj;
2745 struct gl_texture_image *texImage;
2746 const GLuint face = _mesa_tex_target_to_face(target);
2747
2748 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2749 format, type, 3, width, height, depth, border)) {
2750 return; /* error was recorded */
2751 }
2752
2753 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2754 _mesa_update_state(ctx);
2755
2756 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2757 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2758 _mesa_lock_texture(ctx, texObj);
2759 {
2760 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2761 if (!texImage) {
2762 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2763 goto out;
2764 }
2765
2766 if (texImage->Data) {
2767 ctx->Driver.FreeTexImageData( ctx, texImage );
2768 }
2769
2770 ASSERT(texImage->Data == NULL);
2771 clear_teximage_fields(texImage); /* not really needed, but helpful */
2772 _mesa_init_teximage_fields(ctx, target, texImage,
2773 width, height, depth,
2774 border, internalFormat);
2775
2776 ASSERT(ctx->Driver.TexImage3D);
2777
2778 /* Give the texture to the driver! <pixels> may be null! */
2779 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2780 width, height, depth, border, format, type,
2781 pixels, &ctx->Unpack, texObj, texImage);
2782
2783 ASSERT(texImage->TexFormat);
2784
2785 update_fbo_texture(ctx, texObj, face, level);
2786
2787 /* state update */
2788 texObj->_Complete = GL_FALSE;
2789 ctx->NewState |= _NEW_TEXTURE;
2790 }
2791 out:
2792 _mesa_unlock_texture(ctx, texObj);
2793 }
2794 else if (target == GL_PROXY_TEXTURE_3D ||
2795 (ctx->Extensions.MESA_texture_array &&
2796 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2797 /* Proxy texture: check for errors and update proxy state */
2798 struct gl_texture_image *texImage;
2799 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2800 if (texture_error_check(ctx, target, level, internalFormat,
2801 format, type, 3, width, height, depth, border)) {
2802 /* when error, clear all proxy texture image parameters */
2803 if (texImage)
2804 clear_teximage_fields(texImage);
2805 }
2806 else {
2807 /* no error, set the tex image parameters */
2808 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2809 depth, border, internalFormat);
2810 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2811 internalFormat, format, type);
2812 }
2813 }
2814 else {
2815 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2816 return;
2817 }
2818 }
2819
2820
2821 void GLAPIENTRY
2822 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2823 GLsizei width, GLsizei height, GLsizei depth,
2824 GLint border, GLenum format, GLenum type,
2825 const GLvoid *pixels )
2826 {
2827 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2828 depth, border, format, type, pixels);
2829 }
2830
2831
2832
2833 void GLAPIENTRY
2834 _mesa_TexSubImage1D( GLenum target, GLint level,
2835 GLint xoffset, GLsizei width,
2836 GLenum format, GLenum type,
2837 const GLvoid *pixels )
2838 {
2839 GLsizei postConvWidth = width;
2840 struct gl_texture_unit *texUnit;
2841 struct gl_texture_object *texObj;
2842 struct gl_texture_image *texImage = NULL;
2843 GET_CURRENT_CONTEXT(ctx);
2844 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2845
2846 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2847 _mesa_update_state(ctx);
2848
2849 #if FEATURE_convolve
2850 /* XXX should test internal format */
2851 if (_mesa_is_color_format(format)) {
2852 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2853 }
2854 #endif
2855
2856 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2857 postConvWidth, 1, 1, format, type)) {
2858 return; /* error was detected */
2859 }
2860
2861
2862 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2863 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2864 assert(texObj);
2865
2866 _mesa_lock_texture(ctx, texObj);
2867 {
2868 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2869
2870 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2871 postConvWidth, 1, 1, format, type, texImage)) {
2872 goto out; /* error was detected */
2873 }
2874
2875 if (width == 0)
2876 goto out; /* no-op, not an error */
2877
2878 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2879 xoffset += texImage->Border;
2880
2881 ASSERT(ctx->Driver.TexSubImage1D);
2882 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2883 format, type, pixels, &ctx->Unpack,
2884 texObj, texImage);
2885 ctx->NewState |= _NEW_TEXTURE;
2886 }
2887 out:
2888 _mesa_unlock_texture(ctx, texObj);
2889 }
2890
2891
2892 void GLAPIENTRY
2893 _mesa_TexSubImage2D( GLenum target, GLint level,
2894 GLint xoffset, GLint yoffset,
2895 GLsizei width, GLsizei height,
2896 GLenum format, GLenum type,
2897 const GLvoid *pixels )
2898 {
2899 GLsizei postConvWidth = width, postConvHeight = height;
2900 struct gl_texture_unit *texUnit;
2901 struct gl_texture_object *texObj;
2902 struct gl_texture_image *texImage;
2903 GET_CURRENT_CONTEXT(ctx);
2904 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2905
2906 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2907 _mesa_update_state(ctx);
2908
2909 #if FEATURE_convolve
2910 /* XXX should test internal format */
2911 if (_mesa_is_color_format(format)) {
2912 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2913 &postConvHeight);
2914 }
2915 #endif
2916
2917 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2918 postConvWidth, postConvHeight, 1, format, type)) {
2919 return; /* error was detected */
2920 }
2921
2922 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2923 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2924 _mesa_lock_texture(ctx, texObj);
2925 {
2926 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2927
2928 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2929 postConvWidth, postConvHeight, 1, format, type,
2930 texImage)) {
2931 goto out; /* error was detected */
2932 }
2933
2934 if (width == 0 || height == 0)
2935 goto out; /* no-op, not an error */
2936
2937 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2938 xoffset += texImage->Border;
2939 yoffset += texImage->Border;
2940
2941 ASSERT(ctx->Driver.TexSubImage2D);
2942 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2943 width, height, format, type, pixels,
2944 &ctx->Unpack, texObj, texImage);
2945 ctx->NewState |= _NEW_TEXTURE;
2946 }
2947 out:
2948 _mesa_unlock_texture(ctx, texObj);
2949 }
2950
2951
2952
2953 void GLAPIENTRY
2954 _mesa_TexSubImage3D( GLenum target, GLint level,
2955 GLint xoffset, GLint yoffset, GLint zoffset,
2956 GLsizei width, GLsizei height, GLsizei depth,
2957 GLenum format, GLenum type,
2958 const GLvoid *pixels )
2959 {
2960 struct gl_texture_unit *texUnit;
2961 struct gl_texture_object *texObj;
2962 struct gl_texture_image *texImage;
2963 GET_CURRENT_CONTEXT(ctx);
2964 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2965
2966 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2967 _mesa_update_state(ctx);
2968
2969 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2970 width, height, depth, format, type)) {
2971 return; /* error was detected */
2972 }
2973
2974 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2975 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2976
2977 _mesa_lock_texture(ctx, texObj);
2978 {
2979 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2980
2981 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2982 width, height, depth, format, type, texImage)) {
2983 goto out; /* error was detected */
2984 }
2985
2986 if (width == 0 || height == 0 || height == 0)
2987 goto out; /* no-op, not an error */
2988
2989 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2990 xoffset += texImage->Border;
2991 yoffset += texImage->Border;
2992 zoffset += texImage->Border;
2993
2994 ASSERT(ctx->Driver.TexSubImage3D);
2995 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2996 xoffset, yoffset, zoffset,
2997 width, height, depth,
2998 format, type, pixels,
2999 &ctx->Unpack, texObj, texImage );
3000 ctx->NewState |= _NEW_TEXTURE;
3001 }
3002 out:
3003 _mesa_unlock_texture(ctx, texObj);
3004 }
3005
3006
3007
3008 void GLAPIENTRY
3009 _mesa_CopyTexImage1D( GLenum target, GLint level,
3010 GLenum internalFormat,
3011 GLint x, GLint y,
3012 GLsizei width, GLint border )
3013 {
3014 struct gl_texture_unit *texUnit;
3015 struct gl_texture_object *texObj;
3016 struct gl_texture_image *texImage;
3017 GLsizei postConvWidth = width;
3018 const GLuint face = _mesa_tex_target_to_face(target);
3019 GET_CURRENT_CONTEXT(ctx);
3020 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3021
3022 if (ctx->NewState & NEW_COPY_TEX_STATE)
3023 _mesa_update_state(ctx);
3024
3025 #if FEATURE_convolve
3026 if (_mesa_is_color_format(internalFormat)) {
3027 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3028 }
3029 #endif
3030
3031 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
3032 postConvWidth, 1, border))
3033 return;
3034
3035 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3036 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3037 _mesa_lock_texture(ctx, texObj);
3038 {
3039 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3040 if (!texImage) {
3041 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
3042 goto out;
3043 }
3044
3045 if (texImage->Data) {
3046 ctx->Driver.FreeTexImageData( ctx, texImage );
3047 }
3048
3049 ASSERT(texImage->Data == NULL);
3050
3051 clear_teximage_fields(texImage); /* not really needed, but helpful */
3052 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
3053 border, internalFormat);
3054
3055
3056 ASSERT(ctx->Driver.CopyTexImage1D);
3057 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
3058 x, y, width, border);
3059
3060 ASSERT(texImage->TexFormat);
3061
3062 update_fbo_texture(ctx, texObj, face, level);
3063
3064 /* state update */
3065 texObj->_Complete = GL_FALSE;
3066 ctx->NewState |= _NEW_TEXTURE;
3067 }
3068 out:
3069 _mesa_unlock_texture(ctx, texObj);
3070 }
3071
3072
3073
3074 void GLAPIENTRY
3075 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3076 GLint x, GLint y, GLsizei width, GLsizei height,
3077 GLint border )
3078 {
3079 struct gl_texture_unit *texUnit;
3080 struct gl_texture_object *texObj;
3081 struct gl_texture_image *texImage;
3082 GLsizei postConvWidth = width, postConvHeight = height;
3083 const GLuint face = _mesa_tex_target_to_face(target);
3084 GET_CURRENT_CONTEXT(ctx);
3085 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3086
3087 if (ctx->NewState & NEW_COPY_TEX_STATE)
3088 _mesa_update_state(ctx);
3089
3090 #if FEATURE_convolve
3091 if (_mesa_is_color_format(internalFormat)) {
3092 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
3093 &postConvHeight);
3094 }
3095 #endif
3096
3097 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
3098 postConvWidth, postConvHeight, border))
3099 return;
3100
3101 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3102 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3103
3104 _mesa_lock_texture(ctx, texObj);
3105 {
3106 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3107
3108 if (!texImage) {
3109 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
3110 goto out;
3111 }
3112
3113 if (texImage->Data) {
3114 ctx->Driver.FreeTexImageData( ctx, texImage );
3115 }
3116
3117 ASSERT(texImage->Data == NULL);
3118
3119 clear_teximage_fields(texImage); /* not really needed, but helpful */
3120 _mesa_init_teximage_fields(ctx, target, texImage,
3121 postConvWidth, postConvHeight, 1,
3122 border, internalFormat);
3123
3124 ASSERT(ctx->Driver.CopyTexImage2D);
3125 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
3126 x, y, width, height, border);
3127
3128 ASSERT(texImage->TexFormat);
3129
3130 update_fbo_texture(ctx, texObj, face, level);
3131
3132 /* state update */
3133 texObj->_Complete = GL_FALSE;
3134 ctx->NewState |= _NEW_TEXTURE;
3135 }
3136 out:
3137 _mesa_unlock_texture(ctx, texObj);
3138 }
3139
3140
3141 void GLAPIENTRY
3142 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3143 GLint xoffset, GLint x, GLint y, GLsizei width )
3144 {
3145 struct gl_texture_unit *texUnit;
3146 struct gl_texture_object *texObj;
3147 struct gl_texture_image *texImage;
3148 GLsizei postConvWidth = width;
3149 GLint yoffset = 0;
3150 GLsizei height = 1;
3151
3152 GET_CURRENT_CONTEXT(ctx);
3153 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3154
3155 if (ctx->NewState & NEW_COPY_TEX_STATE)
3156 _mesa_update_state(ctx);
3157
3158 if (copytexsubimage_error_check1(ctx, 1, target, level))
3159 return;
3160
3161 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3162 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3163
3164 _mesa_lock_texture(ctx, texObj);
3165 {
3166 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3167
3168 #if FEATURE_convolve
3169 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3170 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3171 }
3172 #endif
3173
3174 if (copytexsubimage_error_check2(ctx, 1, target, level,
3175 xoffset, 0, 0, postConvWidth, 1,
3176 texImage))
3177 goto out;
3178
3179
3180 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3181 xoffset += texImage->Border;
3182
3183 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3184 &width, &height)) {
3185 ASSERT(ctx->Driver.CopyTexSubImage1D);
3186 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
3187 xoffset, x, y, width);
3188 }
3189
3190 ctx->NewState |= _NEW_TEXTURE;
3191 }
3192 out:
3193 _mesa_unlock_texture(ctx, texObj);
3194 }
3195
3196
3197
3198 void GLAPIENTRY
3199 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3200 GLint xoffset, GLint yoffset,
3201 GLint x, GLint y, GLsizei width, GLsizei height )
3202 {
3203 struct gl_texture_unit *texUnit;
3204 struct gl_texture_object *texObj;
3205 struct gl_texture_image *texImage;
3206 GLsizei postConvWidth = width, postConvHeight = height;
3207 GET_CURRENT_CONTEXT(ctx);
3208 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3209
3210 if (ctx->NewState & NEW_COPY_TEX_STATE)
3211 _mesa_update_state(ctx);
3212
3213 if (copytexsubimage_error_check1(ctx, 2, target, level))
3214 return;
3215
3216 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3217 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3218
3219 _mesa_lock_texture(ctx, texObj);
3220 {
3221 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3222
3223 #if FEATURE_convolve
3224 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3225 _mesa_adjust_image_for_convolution(ctx, 2,
3226 &postConvWidth, &postConvHeight);
3227 }
3228 #endif
3229
3230 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3231 postConvWidth, postConvHeight, texImage))
3232 goto out;
3233
3234 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3235 xoffset += texImage->Border;
3236 yoffset += texImage->Border;
3237
3238 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3239 &width, &height)) {
3240 ASSERT(ctx->Driver.CopyTexSubImage2D);
3241 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
3242 xoffset, yoffset, x, y, width, height);
3243 }
3244
3245 ctx->NewState |= _NEW_TEXTURE;
3246 }
3247 out:
3248 _mesa_unlock_texture(ctx, texObj);
3249 }
3250
3251
3252
3253 void GLAPIENTRY
3254 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3255 GLint xoffset, GLint yoffset, GLint zoffset,
3256 GLint x, GLint y, GLsizei width, GLsizei height )
3257 {
3258 struct gl_texture_unit *texUnit;
3259 struct gl_texture_object *texObj;
3260 struct gl_texture_image *texImage;
3261 GLsizei postConvWidth = width, postConvHeight = height;
3262 GET_CURRENT_CONTEXT(ctx);
3263 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3264
3265 if (ctx->NewState & NEW_COPY_TEX_STATE)
3266 _mesa_update_state(ctx);
3267
3268 if (copytexsubimage_error_check1(ctx, 3, target, level))
3269 return;
3270
3271 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3272 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3273
3274 _mesa_lock_texture(ctx, texObj);
3275 {
3276 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3277
3278 #if FEATURE_convolve
3279 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3280 _mesa_adjust_image_for_convolution(ctx, 2,
3281 &postConvWidth, &postConvHeight);
3282 }
3283 #endif
3284
3285 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3286 zoffset, postConvWidth, postConvHeight,
3287 texImage))
3288 goto out;
3289
3290 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3291 xoffset += texImage->Border;
3292 yoffset += texImage->Border;
3293 zoffset += texImage->Border;
3294
3295 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3296 &width, &height)) {
3297 ASSERT(ctx->Driver.CopyTexSubImage3D);
3298 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
3299 xoffset, yoffset, zoffset,
3300 x, y, width, height);
3301 }
3302
3303 ctx->NewState |= _NEW_TEXTURE;
3304 }
3305 out:
3306 _mesa_unlock_texture(ctx, texObj);
3307 }
3308
3309
3310
3311
3312 /**********************************************************************/
3313 /****** Compressed Textures ******/
3314 /**********************************************************************/
3315
3316
3317 /**
3318 * Error checking for glCompressedTexImage[123]D().
3319 * \return error code or GL_NO_ERROR.
3320 */
3321 static GLenum
3322 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3323 GLenum target, GLint level,
3324 GLenum internalFormat, GLsizei width,
3325 GLsizei height, GLsizei depth, GLint border,
3326 GLsizei imageSize)
3327 {
3328 GLint expectedSize, maxLevels = 0, maxTextureSize;
3329
3330 if (dimensions == 1) {
3331 /* 1D compressed textures not allowed */
3332 return GL_INVALID_ENUM;
3333 }
3334 else if (dimensions == 2) {
3335 if (target == GL_PROXY_TEXTURE_2D) {
3336 maxLevels = ctx->Const.MaxTextureLevels;
3337 }
3338 else if (target == GL_TEXTURE_2D) {
3339 maxLevels = ctx->Const.MaxTextureLevels;
3340 }
3341 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3342 if (!ctx->Extensions.ARB_texture_cube_map)
3343 return GL_INVALID_ENUM; /*target*/
3344 maxLevels = ctx->Const.MaxCubeTextureLevels;
3345 }
3346 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3347 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3348 if (!ctx->Extensions.ARB_texture_cube_map)
3349 return GL_INVALID_ENUM; /*target*/
3350 maxLevels = ctx->Const.MaxCubeTextureLevels;
3351 }
3352 else {
3353 return GL_INVALID_ENUM; /*target*/
3354 }
3355 }
3356 else if (dimensions == 3) {
3357 /* 3D compressed textures not allowed */
3358 return GL_INVALID_ENUM;
3359 }
3360
3361 maxTextureSize = 1 << (maxLevels - 1);
3362
3363 /* This will detect any invalid internalFormat value */
3364 if (!is_compressed_format(ctx, internalFormat))
3365 return GL_INVALID_ENUM;
3366
3367 /* This should really never fail */
3368 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3369 return GL_INVALID_ENUM;
3370
3371 if (border != 0)
3372 return GL_INVALID_VALUE;
3373
3374 /*
3375 * XXX We should probably use the proxy texture error check function here.
3376 */
3377 if (width < 1 || width > maxTextureSize ||
3378 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(width)))
3379 return GL_INVALID_VALUE;
3380
3381 if ((height < 1 || height > maxTextureSize ||
3382 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(height)))
3383 && dimensions > 1)
3384 return GL_INVALID_VALUE;
3385
3386 if ((depth < 1 || depth > maxTextureSize ||
3387 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(depth)))
3388 && dimensions > 2)
3389 return GL_INVALID_VALUE;
3390
3391 /* For cube map, width must equal height */
3392 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3393 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3394 return GL_INVALID_VALUE;
3395
3396 if (level < 0 || level >= maxLevels)
3397 return GL_INVALID_VALUE;
3398
3399 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3400 depth, internalFormat);
3401 if (expectedSize != imageSize)
3402 return GL_INVALID_VALUE;
3403
3404 #if FEATURE_EXT_texture_sRGB
3405 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3406 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3407 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3408 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3409 && border != 0) {
3410 return GL_INVALID_OPERATION;
3411 }
3412 #endif
3413
3414 return GL_NO_ERROR;
3415 }
3416
3417
3418 /**
3419 * Error checking for glCompressedTexSubImage[123]D().
3420 * \warning There are some bad assumptions here about the size of compressed
3421 * texture tiles (multiple of 4) used to test the validity of the
3422 * offset and size parameters.
3423 * \return error code or GL_NO_ERROR.
3424 */
3425 static GLenum
3426 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3427 GLenum target, GLint level,
3428 GLint xoffset, GLint yoffset, GLint zoffset,
3429 GLsizei width, GLsizei height, GLsizei depth,
3430 GLenum format, GLsizei imageSize)
3431 {
3432 GLint expectedSize, maxLevels = 0, maxTextureSize;
3433 (void) zoffset;
3434
3435 if (dimensions == 1) {
3436 /* 1D compressed textures not allowed */
3437 return GL_INVALID_ENUM;
3438 }
3439 else if (dimensions == 2) {
3440 if (target == GL_PROXY_TEXTURE_2D) {
3441 maxLevels = ctx->Const.MaxTextureLevels;
3442 }
3443 else if (target == GL_TEXTURE_2D) {
3444 maxLevels = ctx->Const.MaxTextureLevels;
3445 }
3446 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3447 if (!ctx->Extensions.ARB_texture_cube_map)
3448 return GL_INVALID_ENUM; /*target*/
3449 maxLevels = ctx->Const.MaxCubeTextureLevels;
3450 }
3451 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3452 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3453 if (!ctx->Extensions.ARB_texture_cube_map)
3454 return GL_INVALID_ENUM; /*target*/
3455 maxLevels = ctx->Const.MaxCubeTextureLevels;
3456 }
3457 else {
3458 return GL_INVALID_ENUM; /*target*/
3459 }
3460 }
3461 else if (dimensions == 3) {
3462 /* 3D compressed textures not allowed */
3463 return GL_INVALID_ENUM;
3464 }
3465
3466 maxTextureSize = 1 << (maxLevels - 1);
3467
3468 /* this will catch any invalid compressed format token */
3469 if (!is_compressed_format(ctx, format))
3470 return GL_INVALID_ENUM;
3471
3472 if (width < 1 || width > maxTextureSize)
3473 return GL_INVALID_VALUE;
3474
3475 if ((height < 1 || height > maxTextureSize)
3476 && dimensions > 1)
3477 return GL_INVALID_VALUE;
3478
3479 if (level < 0 || level >= maxLevels)
3480 return GL_INVALID_VALUE;
3481
3482 /* XXX these tests are specific to the compressed format.
3483 * this code should be generalized in some way.
3484 */
3485 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3486 return GL_INVALID_VALUE;
3487
3488 if ((width & 3) != 0 && width != 2 && width != 1)
3489 return GL_INVALID_VALUE;
3490
3491 if ((height & 3) != 0 && height != 2 && height != 1)
3492 return GL_INVALID_VALUE;
3493
3494 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3495 depth, format);
3496 if (expectedSize != imageSize)
3497 return GL_INVALID_VALUE;
3498
3499 return GL_NO_ERROR;
3500 }
3501
3502
3503
3504 void GLAPIENTRY
3505 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3506 GLenum internalFormat, GLsizei width,
3507 GLint border, GLsizei imageSize,
3508 const GLvoid *data)
3509 {
3510 GET_CURRENT_CONTEXT(ctx);
3511 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3512
3513 if (target == GL_TEXTURE_1D) {
3514 /* non-proxy target */
3515 struct gl_texture_unit *texUnit;
3516 struct gl_texture_object *texObj;
3517 struct gl_texture_image *texImage;
3518 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3519 internalFormat, width, 1, 1, border, imageSize);
3520 if (error) {
3521 _mesa_error(ctx, error, "glCompressedTexImage1D");
3522 return;
3523 }
3524
3525 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3526 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3527
3528 _mesa_lock_texture(ctx, texObj);
3529 {
3530 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3531 if (!texImage) {
3532 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3533 goto out;
3534 }
3535
3536 if (texImage->Data) {
3537 ctx->Driver.FreeTexImageData( ctx, texImage );
3538 }
3539 ASSERT(texImage->Data == NULL);
3540
3541 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3542 border, internalFormat);
3543
3544 ASSERT(ctx->Driver.CompressedTexImage1D);
3545 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3546 internalFormat, width, border,
3547 imageSize, data,
3548 texObj, texImage);
3549
3550 /* state update */
3551 texObj->_Complete = GL_FALSE;
3552 ctx->NewState |= _NEW_TEXTURE;
3553 }
3554 out:
3555 _mesa_unlock_texture(ctx, texObj);
3556 }
3557 else if (target == GL_PROXY_TEXTURE_1D) {
3558 /* Proxy texture: check for errors and update proxy state */
3559 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3560 internalFormat, width, 1, 1, border, imageSize);
3561 if (!error) {
3562 ASSERT(ctx->Driver.TestProxyTexImage);
3563 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3564 internalFormat, GL_NONE, GL_NONE,
3565 width, 1, 1, border);
3566 }
3567 if (error) {
3568 /* if error, clear all proxy texture image parameters */
3569 struct gl_texture_image *texImage;
3570 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3571 if (texImage)
3572 clear_teximage_fields(texImage);
3573 }
3574 else {
3575 /* store the teximage parameters */
3576 struct gl_texture_unit *texUnit;
3577 struct gl_texture_object *texObj;
3578 struct gl_texture_image *texImage;
3579 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3580 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3581
3582 _mesa_lock_texture(ctx, texObj);
3583 {
3584 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3585 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3586 border, internalFormat);
3587 }
3588 _mesa_unlock_texture(ctx, texObj);
3589 }
3590 }
3591 else {
3592 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3593 return;
3594 }
3595 }
3596
3597
3598 void GLAPIENTRY
3599 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3600 GLenum internalFormat, GLsizei width,
3601 GLsizei height, GLint border, GLsizei imageSize,
3602 const GLvoid *data)
3603 {
3604 GET_CURRENT_CONTEXT(ctx);
3605 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3606
3607 if (target == GL_TEXTURE_2D ||
3608 (ctx->Extensions.ARB_texture_cube_map &&
3609 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3610 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3611 /* non-proxy target */
3612 struct gl_texture_unit *texUnit;
3613 struct gl_texture_object *texObj;
3614 struct gl_texture_image *texImage;
3615 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3616 internalFormat, width, height, 1, border, imageSize);
3617 if (error) {
3618 _mesa_error(ctx, error, "glCompressedTexImage2D");
3619 return;
3620 }
3621
3622 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3623 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3624
3625 _mesa_lock_texture(ctx, texObj);
3626 {
3627 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3628 if (!texImage) {
3629 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3630 goto out;
3631 }
3632
3633 if (texImage->Data) {
3634 ctx->Driver.FreeTexImageData( ctx, texImage );
3635 }
3636 ASSERT(texImage->Data == NULL);
3637
3638 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3639 border, internalFormat);
3640
3641 ASSERT(ctx->Driver.CompressedTexImage2D);
3642 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3643 internalFormat, width, height,
3644 border, imageSize, data,
3645 texObj, texImage);
3646
3647 /* state update */
3648 texObj->_Complete = GL_FALSE;
3649 ctx->NewState |= _NEW_TEXTURE;
3650 }
3651 out:
3652 _mesa_unlock_texture(ctx, texObj);
3653 }
3654 else if (target == GL_PROXY_TEXTURE_2D ||
3655 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3656 ctx->Extensions.ARB_texture_cube_map)) {
3657 /* Proxy texture: check for errors and update proxy state */
3658 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3659 internalFormat, width, height, 1, border, imageSize);
3660 if (!error) {
3661 ASSERT(ctx->Driver.TestProxyTexImage);
3662 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3663 internalFormat, GL_NONE, GL_NONE,
3664 width, height, 1, border);
3665 }
3666 if (error) {
3667 /* if error, clear all proxy texture image parameters */
3668 struct gl_texture_image *texImage;
3669 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3670 if (texImage)
3671 clear_teximage_fields(texImage);
3672 }
3673 else {
3674 /* store the teximage parameters */
3675 struct gl_texture_unit *texUnit;
3676 struct gl_texture_object *texObj;
3677 struct gl_texture_image *texImage;
3678 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3679 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3680
3681 _mesa_lock_texture(ctx, texObj);
3682 {
3683 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3684 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3685 border, internalFormat);
3686 }
3687 _mesa_unlock_texture(ctx, texObj);
3688 }
3689 }
3690 else {
3691 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3692 return;
3693 }
3694 }
3695
3696
3697 void GLAPIENTRY
3698 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3699 GLenum internalFormat, GLsizei width,
3700 GLsizei height, GLsizei depth, GLint border,
3701 GLsizei imageSize, const GLvoid *data)
3702 {
3703 GET_CURRENT_CONTEXT(ctx);
3704 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3705
3706 if (target == GL_TEXTURE_3D) {
3707 /* non-proxy target */
3708 struct gl_texture_unit *texUnit;
3709 struct gl_texture_object *texObj;
3710 struct gl_texture_image *texImage;
3711 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3712 internalFormat, width, height, depth, border, imageSize);
3713 if (error) {
3714 _mesa_error(ctx, error, "glCompressedTexImage3D");
3715 return;
3716 }
3717
3718 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3719 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3720 _mesa_lock_texture(ctx, texObj);
3721 {
3722 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3723 if (!texImage) {
3724 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3725 goto out;
3726 }
3727
3728 if (texImage->Data) {
3729 ctx->Driver.FreeTexImageData( ctx, texImage );
3730 }
3731 ASSERT(texImage->Data == NULL);
3732
3733 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3734 border, internalFormat);
3735
3736 ASSERT(ctx->Driver.CompressedTexImage3D);
3737 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3738 internalFormat,
3739 width, height, depth,
3740 border, imageSize, data,
3741 texObj, texImage);
3742
3743 /* state update */
3744 texObj->_Complete = GL_FALSE;
3745 ctx->NewState |= _NEW_TEXTURE;
3746 }
3747 out:
3748 _mesa_unlock_texture(ctx, texObj);
3749 }
3750 else if (target == GL_PROXY_TEXTURE_3D) {
3751 /* Proxy texture: check for errors and update proxy state */
3752 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3753 internalFormat, width, height, depth, border, imageSize);
3754 if (!error) {
3755 ASSERT(ctx->Driver.TestProxyTexImage);
3756 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3757 internalFormat, GL_NONE, GL_NONE,
3758 width, height, depth, border);
3759 }
3760 if (error) {
3761 /* if error, clear all proxy texture image parameters */
3762 struct gl_texture_image *texImage;
3763 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3764 if (texImage)
3765 clear_teximage_fields(texImage);
3766 }
3767 else {
3768 /* store the teximage parameters */
3769 struct gl_texture_unit *texUnit;
3770 struct gl_texture_object *texObj;
3771 struct gl_texture_image *texImage;
3772 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3773 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3774 _mesa_lock_texture(ctx, texObj);
3775 {
3776 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3777 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3778 depth, border, internalFormat);
3779 }
3780 _mesa_unlock_texture(ctx, texObj);
3781 }
3782 }
3783 else {
3784 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3785 return;
3786 }
3787 }
3788
3789
3790 void GLAPIENTRY
3791 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3792 GLsizei width, GLenum format,
3793 GLsizei imageSize, const GLvoid *data)
3794 {
3795 struct gl_texture_unit *texUnit;
3796 struct gl_texture_object *texObj;
3797 struct gl_texture_image *texImage;
3798 GLenum error;
3799 GET_CURRENT_CONTEXT(ctx);
3800 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3801
3802 error = compressed_subtexture_error_check(ctx, 1, target, level,
3803 xoffset, 0, 0, /* pos */
3804 width, 1, 1, /* size */
3805 format, imageSize);
3806 if (error) {
3807 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3808 return;
3809 }
3810
3811 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3812 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3813 _mesa_lock_texture(ctx, texObj);
3814 {
3815 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3816 assert(texImage);
3817
3818 if ((GLint) format != texImage->InternalFormat) {
3819 _mesa_error(ctx, GL_INVALID_OPERATION,
3820 "glCompressedTexSubImage1D(format)");
3821 goto out;
3822 }
3823
3824 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3825 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3826 goto out;
3827 }
3828
3829 if (width == 0)
3830 goto out; /* no-op, not an error */
3831
3832 if (ctx->Driver.CompressedTexSubImage1D) {
3833 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3834 xoffset, width,
3835 format, imageSize, data,
3836 texObj, texImage);
3837 }
3838 ctx->NewState |= _NEW_TEXTURE;
3839 }
3840 out:
3841 _mesa_unlock_texture(ctx, texObj);
3842 }
3843
3844
3845 void GLAPIENTRY
3846 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3847 GLint yoffset, GLsizei width, GLsizei height,
3848 GLenum format, GLsizei imageSize,
3849 const GLvoid *data)
3850 {
3851 struct gl_texture_unit *texUnit;
3852 struct gl_texture_object *texObj;
3853 struct gl_texture_image *texImage;
3854 GLenum error;
3855 GET_CURRENT_CONTEXT(ctx);
3856 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3857
3858 error = compressed_subtexture_error_check(ctx, 2, target, level,
3859 xoffset, yoffset, 0, /* pos */
3860 width, height, 1, /* size */
3861 format, imageSize);
3862 if (error) {
3863 /* XXX proxy target? */
3864 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3865 return;
3866 }
3867
3868 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3869 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3870 _mesa_lock_texture(ctx, texObj);
3871 {
3872 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3873 assert(texImage);
3874
3875 if ((GLint) format != texImage->InternalFormat) {
3876 _mesa_error(ctx, GL_INVALID_OPERATION,
3877 "glCompressedTexSubImage2D(format)");
3878 goto out;
3879 }
3880
3881 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3882 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3883 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3884 goto out;
3885 }
3886
3887 if (width == 0 || height == 0)
3888 goto out; /* no-op, not an error */
3889
3890 if (ctx->Driver.CompressedTexSubImage2D) {
3891 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3892 xoffset, yoffset, width, height,
3893 format, imageSize, data,
3894 texObj, texImage);
3895 }
3896 ctx->NewState |= _NEW_TEXTURE;
3897 }
3898 out:
3899 _mesa_unlock_texture(ctx, texObj);
3900 }
3901
3902
3903 void GLAPIENTRY
3904 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3905 GLint yoffset, GLint zoffset, GLsizei width,
3906 GLsizei height, GLsizei depth, GLenum format,
3907 GLsizei imageSize, const GLvoid *data)
3908 {
3909 struct gl_texture_unit *texUnit;
3910 struct gl_texture_object *texObj;
3911 struct gl_texture_image *texImage;
3912 GLenum error;
3913 GET_CURRENT_CONTEXT(ctx);
3914 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3915
3916 error = compressed_subtexture_error_check(ctx, 3, target, level,
3917 xoffset, yoffset, zoffset,/*pos*/
3918 width, height, depth, /*size*/
3919 format, imageSize);
3920 if (error) {
3921 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3922 return;
3923 }
3924
3925 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3926 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3927 _mesa_lock_texture(ctx, texObj);
3928 {
3929 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3930 assert(texImage);
3931
3932 if ((GLint) format != texImage->InternalFormat) {
3933 _mesa_error(ctx, GL_INVALID_OPERATION,
3934 "glCompressedTexSubImage3D(format)");
3935 goto out;
3936 }
3937
3938 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3939 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3940 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3941 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3942 goto out;
3943 }
3944
3945 if (width == 0 || height == 0 || depth == 0)
3946 goto out; /* no-op, not an error */
3947
3948 if (ctx->Driver.CompressedTexSubImage3D) {
3949 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3950 xoffset, yoffset, zoffset,
3951 width, height, depth,
3952 format, imageSize, data,
3953 texObj, texImage);
3954 }
3955 ctx->NewState |= _NEW_TEXTURE;
3956 }
3957 out:
3958 _mesa_unlock_texture(ctx, texObj);
3959 }
3960
3961
3962 void GLAPIENTRY
3963 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3964 {
3965 const struct gl_texture_unit *texUnit;
3966 struct gl_texture_object *texObj;
3967 struct gl_texture_image *texImage;
3968 GLint maxLevels;
3969 GET_CURRENT_CONTEXT(ctx);
3970 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3971
3972 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3973 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3974 if (!texObj) {
3975 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3976 return;
3977 }
3978
3979 maxLevels = _mesa_max_texture_levels(ctx, target);
3980 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3981
3982 if (level < 0 || level >= maxLevels) {
3983 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3984 return;
3985 }
3986
3987 if (_mesa_is_proxy_texture(target)) {
3988 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3989 return;
3990 }
3991
3992 _mesa_lock_texture(ctx, texObj);
3993 {
3994 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3995 if (texImage) {
3996 if (texImage->IsCompressed) {
3997 /* this typically calls _mesa_get_compressed_teximage() */
3998 ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
3999 texObj, texImage);
4000 }
4001 else {
4002 _mesa_error(ctx, GL_INVALID_OPERATION,
4003 "glGetCompressedTexImageARB");
4004 }
4005 }
4006 else {
4007 /* probably invalid mipmap level */
4008 _mesa_error(ctx, GL_INVALID_VALUE,
4009 "glGetCompressedTexImageARB(level)");
4010 }
4011 }
4012 _mesa_unlock_texture(ctx, texObj);
4013 }