Merge commit 'origin/gallium-master-merge'
[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 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
56 * elsewhere.
57 */
58 void *
59 _mesa_alloc_texmemory(GLsizei bytes)
60 {
61 return _mesa_align_malloc(bytes, 512);
62 }
63
64
65 /**
66 * Free texture memory allocated with _mesa_alloc_texmemory()
67 */
68 void
69 _mesa_free_texmemory(void *m)
70 {
71 _mesa_align_free(m);
72 }
73
74
75
76
77 #if 0
78 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
79 {
80 #if CHAN_TYPE != GL_UNSIGNED_BYTE
81 _mesa_problem(NULL, "PrintTexture not supported");
82 #else
83 GLuint i, j, c;
84 const GLubyte *data = (const GLubyte *) img->Data;
85
86 if (!data) {
87 _mesa_printf("No texture data\n");
88 return;
89 }
90
91 switch (img->Format) {
92 case GL_ALPHA:
93 case GL_LUMINANCE:
94 case GL_INTENSITY:
95 case GL_COLOR_INDEX:
96 c = 1;
97 break;
98 case GL_LUMINANCE_ALPHA:
99 c = 2;
100 break;
101 case GL_RGB:
102 c = 3;
103 break;
104 case GL_RGBA:
105 c = 4;
106 break;
107 default:
108 _mesa_problem(NULL, "error in PrintTexture\n");
109 return;
110 }
111
112 for (i = 0; i < img->Height; i++) {
113 for (j = 0; j < img->Width; j++) {
114 if (c==1)
115 _mesa_printf("%02x ", data[0]);
116 else if (c==2)
117 _mesa_printf("%02x%02x ", data[0], data[1]);
118 else if (c==3)
119 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
120 else if (c==4)
121 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
122 data += (img->RowStride - img->Width) * c;
123 }
124 /* XXX use img->ImageStride here */
125 _mesa_printf("\n");
126 }
127 #endif
128 }
129 #endif
130
131
132 /*
133 * Compute floor(log_base_2(n)).
134 * If n < 0 return -1.
135 */
136 static int
137 logbase2( int n )
138 {
139 GLint i = 1;
140 GLint log2 = 0;
141
142 if (n < 0)
143 return -1;
144
145 if (n == 0)
146 return 0;
147
148 while ( n > i ) {
149 i *= 2;
150 log2++;
151 }
152 if (i != n) {
153 return log2 - 1;
154 }
155 else {
156 return log2;
157 }
158 }
159
160
161
162 /**
163 * Return the simple base format for a given internal texture format.
164 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
165 *
166 * \param ctx GL context.
167 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
168 *
169 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
170 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
171 *
172 * This is the format which is used during texture application (i.e. the
173 * texture format and env mode determine the arithmetic used.
174 */
175 GLint
176 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
177 {
178 switch (internalFormat) {
179 case GL_ALPHA:
180 case GL_ALPHA4:
181 case GL_ALPHA8:
182 case GL_ALPHA12:
183 case GL_ALPHA16:
184 return GL_ALPHA;
185 case 1:
186 case GL_LUMINANCE:
187 case GL_LUMINANCE4:
188 case GL_LUMINANCE8:
189 case GL_LUMINANCE12:
190 case GL_LUMINANCE16:
191 return GL_LUMINANCE;
192 case 2:
193 case GL_LUMINANCE_ALPHA:
194 case GL_LUMINANCE4_ALPHA4:
195 case GL_LUMINANCE6_ALPHA2:
196 case GL_LUMINANCE8_ALPHA8:
197 case GL_LUMINANCE12_ALPHA4:
198 case GL_LUMINANCE12_ALPHA12:
199 case GL_LUMINANCE16_ALPHA16:
200 return GL_LUMINANCE_ALPHA;
201 case GL_INTENSITY:
202 case GL_INTENSITY4:
203 case GL_INTENSITY8:
204 case GL_INTENSITY12:
205 case GL_INTENSITY16:
206 return GL_INTENSITY;
207 case 3:
208 case GL_RGB:
209 case GL_R3_G3_B2:
210 case GL_RGB4:
211 case GL_RGB5:
212 case GL_RGB8:
213 case GL_RGB10:
214 case GL_RGB12:
215 case GL_RGB16:
216 return GL_RGB;
217 case 4:
218 case GL_RGBA:
219 case GL_RGBA2:
220 case GL_RGBA4:
221 case GL_RGB5_A1:
222 case GL_RGBA8:
223 case GL_RGB10_A2:
224 case GL_RGBA12:
225 case GL_RGBA16:
226 return GL_RGBA;
227 default:
228 ; /* fallthrough */
229 }
230
231 if (ctx->Extensions.EXT_paletted_texture) {
232 switch (internalFormat) {
233 case GL_COLOR_INDEX:
234 case GL_COLOR_INDEX1_EXT:
235 case GL_COLOR_INDEX2_EXT:
236 case GL_COLOR_INDEX4_EXT:
237 case GL_COLOR_INDEX8_EXT:
238 case GL_COLOR_INDEX12_EXT:
239 case GL_COLOR_INDEX16_EXT:
240 return GL_COLOR_INDEX;
241 default:
242 ; /* fallthrough */
243 }
244 }
245
246 if (ctx->Extensions.ARB_depth_texture) {
247 switch (internalFormat) {
248 case GL_DEPTH_COMPONENT:
249 case GL_DEPTH_COMPONENT16:
250 case GL_DEPTH_COMPONENT24:
251 case GL_DEPTH_COMPONENT32:
252 return GL_DEPTH_COMPONENT;
253 default:
254 ; /* fallthrough */
255 }
256 }
257
258 switch (internalFormat) {
259 case GL_COMPRESSED_ALPHA:
260 return GL_ALPHA;
261 case GL_COMPRESSED_LUMINANCE:
262 return GL_LUMINANCE;
263 case GL_COMPRESSED_LUMINANCE_ALPHA:
264 return GL_LUMINANCE_ALPHA;
265 case GL_COMPRESSED_INTENSITY:
266 return GL_INTENSITY;
267 case GL_COMPRESSED_RGB:
268 return GL_RGB;
269 case GL_COMPRESSED_RGBA:
270 return GL_RGBA;
271 default:
272 ; /* fallthrough */
273 }
274
275 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
276 switch (internalFormat) {
277 case GL_COMPRESSED_RGB_FXT1_3DFX:
278 return GL_RGB;
279 case GL_COMPRESSED_RGBA_FXT1_3DFX:
280 return GL_RGBA;
281 default:
282 ; /* fallthrough */
283 }
284 }
285
286 if (ctx->Extensions.EXT_texture_compression_s3tc) {
287 switch (internalFormat) {
288 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
289 return GL_RGB;
290 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
291 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
292 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
293 return GL_RGBA;
294 default:
295 ; /* fallthrough */
296 }
297 }
298
299 if (ctx->Extensions.S3_s3tc) {
300 switch (internalFormat) {
301 case GL_RGB_S3TC:
302 case GL_RGB4_S3TC:
303 return GL_RGB;
304 case GL_RGBA_S3TC:
305 case GL_RGBA4_S3TC:
306 return GL_RGBA;
307 default:
308 ; /* fallthrough */
309 }
310 }
311
312 if (ctx->Extensions.MESA_ycbcr_texture) {
313 if (internalFormat == GL_YCBCR_MESA)
314 return GL_YCBCR_MESA;
315 }
316
317 if (ctx->Extensions.ARB_texture_float) {
318 switch (internalFormat) {
319 case GL_ALPHA16F_ARB:
320 case GL_ALPHA32F_ARB:
321 return GL_ALPHA;
322 case GL_RGBA16F_ARB:
323 case GL_RGBA32F_ARB:
324 return GL_RGBA;
325 case GL_RGB16F_ARB:
326 case GL_RGB32F_ARB:
327 return GL_RGB;
328 case GL_INTENSITY16F_ARB:
329 case GL_INTENSITY32F_ARB:
330 return GL_INTENSITY;
331 case GL_LUMINANCE16F_ARB:
332 case GL_LUMINANCE32F_ARB:
333 return GL_LUMINANCE;
334 case GL_LUMINANCE_ALPHA16F_ARB:
335 case GL_LUMINANCE_ALPHA32F_ARB:
336 return GL_LUMINANCE_ALPHA;
337 default:
338 ; /* fallthrough */
339 }
340 }
341
342 if (ctx->Extensions.EXT_packed_depth_stencil) {
343 switch (internalFormat) {
344 case GL_DEPTH_STENCIL_EXT:
345 case GL_DEPTH24_STENCIL8_EXT:
346 return GL_DEPTH_STENCIL_EXT;
347 default:
348 ; /* fallthrough */
349 }
350 }
351
352 #if FEATURE_EXT_texture_sRGB
353 if (ctx->Extensions.EXT_texture_sRGB) {
354 switch (internalFormat) {
355 case GL_SRGB_EXT:
356 case GL_SRGB8_EXT:
357 case GL_COMPRESSED_SRGB_EXT:
358 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
359 return GL_RGB;
360 case GL_SRGB_ALPHA_EXT:
361 case GL_SRGB8_ALPHA8_EXT:
362 case GL_COMPRESSED_SRGB_ALPHA_EXT:
363 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
364 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
365 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
366 return GL_RGBA;
367 case GL_SLUMINANCE_ALPHA_EXT:
368 case GL_SLUMINANCE8_ALPHA8_EXT:
369 case GL_COMPRESSED_SLUMINANCE_EXT:
370 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
371 return GL_LUMINANCE_ALPHA;
372 case GL_SLUMINANCE_EXT:
373 case GL_SLUMINANCE8_EXT:
374 return GL_LUMINANCE;
375 default:
376 ; /* fallthrough */
377 }
378 }
379
380 #endif /* FEATURE_EXT_texture_sRGB */
381
382 return -1; /* error */
383 }
384
385
386 /**
387 * Test if the given image format is a color/RGBA format (i.e., not color
388 * index, depth, stencil, etc).
389 * \param format the image format value (may by an internal texture format)
390 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
391 * XXX maybe move this func to image.c
392 */
393 GLboolean
394 _mesa_is_color_format(GLenum format)
395 {
396 switch (format) {
397 case GL_RED:
398 case GL_GREEN:
399 case GL_BLUE:
400 case GL_ALPHA:
401 case GL_ALPHA4:
402 case GL_ALPHA8:
403 case GL_ALPHA12:
404 case GL_ALPHA16:
405 case 1:
406 case GL_LUMINANCE:
407 case GL_LUMINANCE4:
408 case GL_LUMINANCE8:
409 case GL_LUMINANCE12:
410 case GL_LUMINANCE16:
411 case 2:
412 case GL_LUMINANCE_ALPHA:
413 case GL_LUMINANCE4_ALPHA4:
414 case GL_LUMINANCE6_ALPHA2:
415 case GL_LUMINANCE8_ALPHA8:
416 case GL_LUMINANCE12_ALPHA4:
417 case GL_LUMINANCE12_ALPHA12:
418 case GL_LUMINANCE16_ALPHA16:
419 case GL_INTENSITY:
420 case GL_INTENSITY4:
421 case GL_INTENSITY8:
422 case GL_INTENSITY12:
423 case GL_INTENSITY16:
424 case 3:
425 case GL_RGB:
426 case GL_BGR:
427 case GL_R3_G3_B2:
428 case GL_RGB4:
429 case GL_RGB5:
430 case GL_RGB8:
431 case GL_RGB10:
432 case GL_RGB12:
433 case GL_RGB16:
434 case 4:
435 case GL_ABGR_EXT:
436 case GL_RGBA:
437 case GL_BGRA:
438 case GL_RGBA2:
439 case GL_RGBA4:
440 case GL_RGB5_A1:
441 case GL_RGBA8:
442 case GL_RGB10_A2:
443 case GL_RGBA12:
444 case GL_RGBA16:
445 /* float texture formats */
446 case GL_ALPHA16F_ARB:
447 case GL_ALPHA32F_ARB:
448 case GL_LUMINANCE16F_ARB:
449 case GL_LUMINANCE32F_ARB:
450 case GL_LUMINANCE_ALPHA16F_ARB:
451 case GL_LUMINANCE_ALPHA32F_ARB:
452 case GL_INTENSITY16F_ARB:
453 case GL_INTENSITY32F_ARB:
454 case GL_RGB16F_ARB:
455 case GL_RGB32F_ARB:
456 case GL_RGBA16F_ARB:
457 case GL_RGBA32F_ARB:
458 /* compressed formats */
459 case GL_COMPRESSED_ALPHA:
460 case GL_COMPRESSED_LUMINANCE:
461 case GL_COMPRESSED_LUMINANCE_ALPHA:
462 case GL_COMPRESSED_INTENSITY:
463 case GL_COMPRESSED_RGB:
464 case GL_COMPRESSED_RGBA:
465 case GL_RGB_S3TC:
466 case GL_RGB4_S3TC:
467 case GL_RGBA_S3TC:
468 case GL_RGBA4_S3TC:
469 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
471 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
472 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
473 case GL_COMPRESSED_RGB_FXT1_3DFX:
474 case GL_COMPRESSED_RGBA_FXT1_3DFX:
475 #if FEATURE_EXT_texture_sRGB
476 case GL_SRGB_EXT:
477 case GL_SRGB8_EXT:
478 case GL_SRGB_ALPHA_EXT:
479 case GL_SRGB8_ALPHA8_EXT:
480 case GL_SLUMINANCE_ALPHA_EXT:
481 case GL_SLUMINANCE8_ALPHA8_EXT:
482 case GL_SLUMINANCE_EXT:
483 case GL_SLUMINANCE8_EXT:
484 case GL_COMPRESSED_SRGB_EXT:
485 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
486 case GL_COMPRESSED_SRGB_ALPHA_EXT:
487 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
488 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
489 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
490 case GL_COMPRESSED_SLUMINANCE_EXT:
491 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
492 #endif /* FEATURE_EXT_texture_sRGB */
493 return GL_TRUE;
494 case GL_YCBCR_MESA: /* not considered to be RGB */
495 /* fall-through */
496 default:
497 return GL_FALSE;
498 }
499 }
500
501
502 /**
503 * Test if the given image format is a color index format.
504 */
505 static GLboolean
506 is_index_format(GLenum format)
507 {
508 switch (format) {
509 case GL_COLOR_INDEX:
510 case GL_COLOR_INDEX1_EXT:
511 case GL_COLOR_INDEX2_EXT:
512 case GL_COLOR_INDEX4_EXT:
513 case GL_COLOR_INDEX8_EXT:
514 case GL_COLOR_INDEX12_EXT:
515 case GL_COLOR_INDEX16_EXT:
516 return GL_TRUE;
517 default:
518 return GL_FALSE;
519 }
520 }
521
522
523 /**
524 * Test if the given image format is a depth component format.
525 */
526 static GLboolean
527 is_depth_format(GLenum format)
528 {
529 switch (format) {
530 case GL_DEPTH_COMPONENT16:
531 case GL_DEPTH_COMPONENT24:
532 case GL_DEPTH_COMPONENT32:
533 case GL_DEPTH_COMPONENT:
534 return GL_TRUE;
535 default:
536 return GL_FALSE;
537 }
538 }
539
540
541 /**
542 * Test if the given image format is a YCbCr format.
543 */
544 static GLboolean
545 is_ycbcr_format(GLenum format)
546 {
547 switch (format) {
548 case GL_YCBCR_MESA:
549 return GL_TRUE;
550 default:
551 return GL_FALSE;
552 }
553 }
554
555
556 /**
557 * Test if the given image format is a Depth/Stencil format.
558 */
559 static GLboolean
560 is_depthstencil_format(GLenum format)
561 {
562 switch (format) {
563 case GL_DEPTH24_STENCIL8_EXT:
564 case GL_DEPTH_STENCIL_EXT:
565 return GL_TRUE;
566 default:
567 return GL_FALSE;
568 }
569 }
570
571
572
573 /**
574 * Test if it is a supported compressed format.
575 *
576 * \param internalFormat the internal format token provided by the user.
577 *
578 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
579 * GL_FALSE otherwise.
580 *
581 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
582 * are supported.
583 */
584 static GLboolean
585 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
586 {
587 GLint supported[100]; /* 100 should be plenty */
588 GLuint i, n;
589
590 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
591 ASSERT(n < 100);
592 for (i = 0; i < n; i++) {
593 if ((GLint) internalFormat == supported[i]) {
594 return GL_TRUE;
595 }
596 }
597 return GL_FALSE;
598 }
599
600
601 /**
602 * For cube map faces, return a face index in [0,5].
603 * For other targets return 0;
604 */
605 GLuint
606 _mesa_tex_target_to_face(GLenum target)
607 {
608 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
609 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
610 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
611 else
612 return 0;
613 }
614
615
616
617 /**
618 * Store a gl_texture_image pointer in a gl_texture_object structure
619 * according to the target and level parameters.
620 *
621 * \param tObj texture object.
622 * \param target texture target.
623 * \param level image level.
624 * \param texImage texture image.
625 *
626 * This was basically prompted by the introduction of cube maps.
627 */
628 void
629 _mesa_set_tex_image(struct gl_texture_object *tObj,
630 GLenum target, GLint level,
631 struct gl_texture_image *texImage)
632 {
633 ASSERT(tObj);
634 ASSERT(texImage);
635 /* XXX simplify this with _mesa_tex_target_to_face() */
636 switch (target) {
637 case GL_TEXTURE_1D:
638 case GL_TEXTURE_2D:
639 case GL_TEXTURE_3D:
640 case GL_TEXTURE_1D_ARRAY_EXT:
641 case GL_TEXTURE_2D_ARRAY_EXT:
642 tObj->Image[0][level] = texImage;
643 break;
644 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
645 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
646 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
647 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
648 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
649 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
650 {
651 GLuint face = ((GLuint) target -
652 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
653 tObj->Image[face][level] = texImage;
654 }
655 break;
656 case GL_TEXTURE_RECTANGLE_NV:
657 ASSERT(level == 0);
658 tObj->Image[0][level] = texImage;
659 break;
660 default:
661 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
662 return;
663 }
664 /* Set the 'back' pointer */
665 texImage->TexObject = tObj;
666 }
667
668
669 /**
670 * Allocate a texture image structure.
671 *
672 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
673 * driver.
674 *
675 * \return a pointer to gl_texture_image struct with all fields initialized to
676 * zero.
677 */
678 struct gl_texture_image *
679 _mesa_new_texture_image( GLcontext *ctx )
680 {
681 (void) ctx;
682 return CALLOC_STRUCT(gl_texture_image);
683 }
684
685
686 /**
687 * Free texture image data.
688 * This function is a fallback called via ctx->Driver.FreeTexImageData().
689 *
690 * \param teximage texture image.
691 *
692 * Free the texture image data if it's not marked as client data.
693 */
694 void
695 _mesa_free_texture_image_data(GLcontext *ctx,
696 struct gl_texture_image *texImage)
697 {
698 (void) ctx;
699
700 if (texImage->Data && !texImage->IsClientData) {
701 /* free the old texture data */
702 _mesa_free_texmemory(texImage->Data);
703 }
704
705 texImage->Data = NULL;
706 }
707
708
709 /**
710 * Free texture image.
711 *
712 * \param teximage texture image.
713 *
714 * Free the texture image structure and the associated image data.
715 */
716 void
717 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
718 {
719 /* Free texImage->Data and/or any other driver-specific texture
720 * image storage.
721 */
722 ASSERT(ctx->Driver.FreeTexImageData);
723 ctx->Driver.FreeTexImageData( ctx, texImage );
724
725 ASSERT(texImage->Data == NULL);
726 if (texImage->ImageOffsets)
727 _mesa_free(texImage->ImageOffsets);
728 _mesa_free(texImage);
729 }
730
731
732 /**
733 * Test if a target is a proxy target.
734 *
735 * \param target texture target.
736 *
737 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
738 */
739 GLboolean
740 _mesa_is_proxy_texture(GLenum target)
741 {
742 return (target == GL_PROXY_TEXTURE_1D ||
743 target == GL_PROXY_TEXTURE_2D ||
744 target == GL_PROXY_TEXTURE_3D ||
745 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
746 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
747 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
748 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
749 }
750
751
752 /**
753 * Get the texture object that corresponds to the target of the given texture unit.
754 *
755 * \param ctx GL context.
756 * \param texUnit texture unit.
757 * \param target texture target.
758 *
759 * \return pointer to the texture object on success, or NULL on failure.
760 *
761 * \sa gl_texture_unit.
762 */
763 struct gl_texture_object *
764 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
765 GLenum target)
766 {
767 switch (target) {
768 case GL_TEXTURE_1D:
769 return texUnit->Current1D;
770 case GL_PROXY_TEXTURE_1D:
771 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
772 case GL_TEXTURE_2D:
773 return texUnit->Current2D;
774 case GL_PROXY_TEXTURE_2D:
775 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
776 case GL_TEXTURE_3D:
777 return texUnit->Current3D;
778 case GL_PROXY_TEXTURE_3D:
779 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
780 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
781 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
782 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
783 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
784 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
785 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
786 case GL_TEXTURE_CUBE_MAP_ARB:
787 return ctx->Extensions.ARB_texture_cube_map
788 ? texUnit->CurrentCubeMap : NULL;
789 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
790 return ctx->Extensions.ARB_texture_cube_map
791 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
792 case GL_TEXTURE_RECTANGLE_NV:
793 return ctx->Extensions.NV_texture_rectangle
794 ? texUnit->CurrentRect : NULL;
795 case GL_PROXY_TEXTURE_RECTANGLE_NV:
796 return ctx->Extensions.NV_texture_rectangle
797 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
798 case GL_TEXTURE_1D_ARRAY_EXT:
799 return ctx->Extensions.MESA_texture_array
800 ? texUnit->Current1DArray : NULL;
801 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
802 return ctx->Extensions.MESA_texture_array
803 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
804 case GL_TEXTURE_2D_ARRAY_EXT:
805 return ctx->Extensions.MESA_texture_array
806 ? texUnit->Current2DArray : NULL;
807 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
808 return ctx->Extensions.MESA_texture_array
809 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
810 default:
811 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
812 return NULL;
813 }
814 }
815
816
817 /**
818 * Get the texture image struct which corresponds to target and level
819 * of the given texture unit.
820 *
821 * \param ctx GL context.
822 * \param texUnit texture unit.
823 * \param target texture target.
824 * \param level image level.
825 *
826 * \return pointer to the texture image structure on success, or NULL on failure.
827 *
828 * \sa gl_texture_unit.
829 */
830 struct gl_texture_image *
831 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
832 GLenum target, GLint level)
833 {
834 ASSERT(texObj);
835
836 if (level < 0 || level >= MAX_TEXTURE_LEVELS)
837 return NULL;
838
839 /* XXX simplify this with _mesa_tex_target_to_face() */
840 switch (target) {
841 case GL_TEXTURE_1D:
842 case GL_PROXY_TEXTURE_1D:
843 case GL_TEXTURE_2D:
844 case GL_PROXY_TEXTURE_2D:
845 case GL_TEXTURE_3D:
846 case GL_PROXY_TEXTURE_3D:
847 return texObj->Image[0][level];
848
849 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
850 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
851 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
852 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
853 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
854 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
855 if (ctx->Extensions.ARB_texture_cube_map) {
856 GLuint face = ((GLuint) target -
857 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
858 return texObj->Image[face][level];
859 }
860 else
861 return NULL;
862
863 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
864 if (ctx->Extensions.ARB_texture_cube_map)
865 return texObj->Image[0][level];
866 else
867 return NULL;
868
869 case GL_TEXTURE_RECTANGLE_NV:
870 case GL_PROXY_TEXTURE_RECTANGLE_NV:
871 if (ctx->Extensions.NV_texture_rectangle && level == 0)
872 return texObj->Image[0][level];
873 else
874 return NULL;
875
876 case GL_TEXTURE_1D_ARRAY_EXT:
877 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
878 case GL_TEXTURE_2D_ARRAY_EXT:
879 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
880 return (ctx->Extensions.MESA_texture_array)
881 ? texObj->Image[0][level] : NULL;
882
883 default:
884 return NULL;
885 }
886 }
887
888
889 /**
890 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
891 * it and install it. Only return NULL if passed a bad parameter or run
892 * out of memory.
893 */
894 struct gl_texture_image *
895 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
896 GLenum target, GLint level)
897 {
898 struct gl_texture_image *texImage;
899
900 if (!texObj)
901 return NULL;
902
903 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
904 if (!texImage) {
905 texImage = ctx->Driver.NewTextureImage(ctx);
906 if (!texImage) {
907 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
908 return NULL;
909 }
910
911 _mesa_set_tex_image(texObj, target, level, texImage);
912 }
913
914 return texImage;
915 }
916
917
918 /**
919 * Return pointer to the specified proxy texture image.
920 * Note that proxy textures are per-context, not per-texture unit.
921 * \return pointer to texture image or NULL if invalid target, invalid
922 * level, or out of memory.
923 */
924 struct gl_texture_image *
925 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
926 {
927 struct gl_texture_image *texImage;
928 GLuint texIndex;
929
930 if (level < 0 )
931 return NULL;
932
933 switch (target) {
934 case GL_PROXY_TEXTURE_1D:
935 if (level >= ctx->Const.MaxTextureLevels)
936 return NULL;
937 texIndex = TEXTURE_1D_INDEX;
938 break;
939 case GL_PROXY_TEXTURE_2D:
940 if (level >= ctx->Const.MaxTextureLevels)
941 return NULL;
942 texIndex = TEXTURE_2D_INDEX;
943 break;
944 case GL_PROXY_TEXTURE_3D:
945 if (level >= ctx->Const.Max3DTextureLevels)
946 return NULL;
947 texIndex = TEXTURE_3D_INDEX;
948 break;
949 case GL_PROXY_TEXTURE_CUBE_MAP:
950 if (level >= ctx->Const.MaxCubeTextureLevels)
951 return NULL;
952 texIndex = TEXTURE_CUBE_INDEX;
953 break;
954 case GL_PROXY_TEXTURE_RECTANGLE_NV:
955 if (level > 0)
956 return NULL;
957 texIndex = TEXTURE_RECT_INDEX;
958 break;
959 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
960 if (level >= ctx->Const.MaxTextureLevels)
961 return NULL;
962 texIndex = TEXTURE_1D_ARRAY_INDEX;
963 break;
964 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
965 if (level >= ctx->Const.MaxTextureLevels)
966 return NULL;
967 texIndex = TEXTURE_2D_ARRAY_INDEX;
968 break;
969 default:
970 return NULL;
971 }
972
973 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
974 if (!texImage) {
975 texImage = ctx->Driver.NewTextureImage(ctx);
976 if (!texImage) {
977 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
978 return NULL;
979 }
980 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
981 /* Set the 'back' pointer */
982 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
983 }
984 return texImage;
985 }
986
987
988 /**
989 * Get the maximum number of allowed mipmap levels.
990 *
991 * \param ctx GL context.
992 * \param target texture target.
993 *
994 * \return the maximum number of allowed mipmap levels for the given
995 * texture target, or zero if passed a bad target.
996 *
997 * \sa gl_constants.
998 */
999 GLint
1000 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
1001 {
1002 switch (target) {
1003 case GL_TEXTURE_1D:
1004 case GL_PROXY_TEXTURE_1D:
1005 case GL_TEXTURE_2D:
1006 case GL_PROXY_TEXTURE_2D:
1007 case GL_TEXTURE_1D_ARRAY_EXT:
1008 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1009 case GL_TEXTURE_2D_ARRAY_EXT:
1010 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1011 return ctx->Const.MaxTextureLevels;
1012 case GL_TEXTURE_3D:
1013 case GL_PROXY_TEXTURE_3D:
1014 return ctx->Const.Max3DTextureLevels;
1015 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
1016 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
1017 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
1018 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
1019 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
1020 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1021 case GL_TEXTURE_CUBE_MAP_ARB:
1022 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1023 return ctx->Const.MaxCubeTextureLevels;
1024 case GL_TEXTURE_RECTANGLE_NV:
1025 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1026 return 1;
1027 default:
1028 return 0; /* bad target */
1029 }
1030 }
1031
1032
1033
1034 #if 000 /* not used anymore */
1035 /*
1036 * glTexImage[123]D can accept a NULL image pointer. In this case we
1037 * create a texture image with unspecified image contents per the OpenGL
1038 * spec.
1039 */
1040 static GLubyte *
1041 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1042 {
1043 const GLint components = _mesa_components_in_format(format);
1044 const GLint numPixels = width * height * depth;
1045 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1046
1047 #ifdef DEBUG
1048 /*
1049 * Let's see if anyone finds this. If glTexImage2D() is called with
1050 * a NULL image pointer then load the texture image with something
1051 * interesting instead of leaving it indeterminate.
1052 */
1053 if (data) {
1054 static const char message[8][32] = {
1055 " X X XXXXX XXX X ",
1056 " XX XX X X X X X ",
1057 " X X X X X X X ",
1058 " X X XXXX XXX XXXXX ",
1059 " X X X X X X ",
1060 " X X X X X X X ",
1061 " X X XXXXX XXX X X ",
1062 " "
1063 };
1064
1065 GLubyte *imgPtr = data;
1066 GLint h, i, j, k;
1067 for (h = 0; h < depth; h++) {
1068 for (i = 0; i < height; i++) {
1069 GLint srcRow = 7 - (i % 8);
1070 for (j = 0; j < width; j++) {
1071 GLint srcCol = j % 32;
1072 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1073 for (k = 0; k < components; k++) {
1074 *imgPtr++ = texel;
1075 }
1076 }
1077 }
1078 }
1079 }
1080 #endif
1081
1082 return data;
1083 }
1084 #endif
1085
1086
1087
1088 /**
1089 * Reset the fields of a gl_texture_image struct to zero.
1090 *
1091 * \param img texture image structure.
1092 *
1093 * This is called when a proxy texture test fails, we set all the
1094 * image members (except DriverData) to zero.
1095 * It's also used in glTexImage[123]D as a safeguard to be sure all
1096 * required fields get initialized properly by the Driver.TexImage[123]D
1097 * functions.
1098 */
1099 static void
1100 clear_teximage_fields(struct gl_texture_image *img)
1101 {
1102 ASSERT(img);
1103 img->_BaseFormat = 0;
1104 img->InternalFormat = 0;
1105 img->Border = 0;
1106 img->Width = 0;
1107 img->Height = 0;
1108 img->Depth = 0;
1109 img->RowStride = 0;
1110 if (img->ImageOffsets) {
1111 _mesa_free(img->ImageOffsets);
1112 img->ImageOffsets = NULL;
1113 }
1114 img->Width2 = 0;
1115 img->Height2 = 0;
1116 img->Depth2 = 0;
1117 img->WidthLog2 = 0;
1118 img->HeightLog2 = 0;
1119 img->DepthLog2 = 0;
1120 img->Data = NULL;
1121 img->TexFormat = &_mesa_null_texformat;
1122 img->FetchTexelc = NULL;
1123 img->FetchTexelf = NULL;
1124 img->IsCompressed = 0;
1125 img->CompressedSize = 0;
1126 }
1127
1128
1129 /**
1130 * Initialize basic fields of the gl_texture_image struct.
1131 *
1132 * \param ctx GL context.
1133 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1134 * \param img texture image structure to be initialized.
1135 * \param width image width.
1136 * \param height image height.
1137 * \param depth image depth.
1138 * \param border image border.
1139 * \param internalFormat internal format.
1140 *
1141 * Fills in the fields of \p img with the given information.
1142 * Note: width, height and depth include the border.
1143 */
1144 void
1145 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1146 struct gl_texture_image *img,
1147 GLsizei width, GLsizei height, GLsizei depth,
1148 GLint border, GLenum internalFormat)
1149 {
1150 GLint i;
1151
1152 ASSERT(img);
1153 ASSERT(width >= 0);
1154 ASSERT(height >= 0);
1155 ASSERT(depth >= 0);
1156
1157 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1158 ASSERT(img->_BaseFormat > 0);
1159 img->InternalFormat = internalFormat;
1160 img->Border = border;
1161 img->Width = width;
1162 img->Height = height;
1163 img->Depth = depth;
1164
1165 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1166 img->WidthLog2 = logbase2(img->Width2);
1167
1168 if (height == 1) { /* 1-D texture */
1169 img->Height2 = 1;
1170 img->HeightLog2 = 0;
1171 }
1172 else {
1173 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1174 img->HeightLog2 = logbase2(img->Height2);
1175 }
1176
1177 if (depth == 1) { /* 2-D texture */
1178 img->Depth2 = 1;
1179 img->DepthLog2 = 0;
1180 }
1181 else {
1182 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1183 img->DepthLog2 = logbase2(img->Depth2);
1184 }
1185
1186 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1187
1188 img->IsCompressed = GL_FALSE;
1189 img->CompressedSize = 0;
1190
1191 if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
1192 (height == 1 || _mesa_is_pow_two(img->Height2)) &&
1193 (depth == 1 || _mesa_is_pow_two(img->Depth2)))
1194 img->_IsPowerOfTwo = GL_TRUE;
1195 else
1196 img->_IsPowerOfTwo = GL_FALSE;
1197
1198 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1199 img->RowStride = width;
1200 /* Allocate the ImageOffsets array and initialize to typical values.
1201 * We allocate the array for 1D/2D textures too in order to avoid special-
1202 * case code in the texstore routines.
1203 */
1204 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
1205 for (i = 0; i < depth; i++) {
1206 img->ImageOffsets[i] = i * width * height;
1207 }
1208
1209 /* Compute Width/Height/DepthScale for mipmap lod computation */
1210 if (target == GL_TEXTURE_RECTANGLE_NV) {
1211 /* scale = 1.0 since texture coords directly map to texels */
1212 img->WidthScale = 1.0;
1213 img->HeightScale = 1.0;
1214 img->DepthScale = 1.0;
1215 }
1216 else {
1217 img->WidthScale = (GLfloat) img->Width;
1218 img->HeightScale = (GLfloat) img->Height;
1219 img->DepthScale = (GLfloat) img->Depth;
1220 }
1221 }
1222
1223
1224 /**
1225 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1226 * level, width, height and depth against the ctx->Const limits for textures.
1227 *
1228 * A hardware driver might override this function if, for example, the
1229 * max 3D texture size is 512x512x64 (i.e. not a cube).
1230 *
1231 * Note that width, height, depth == 0 is not an error. However, a
1232 * texture with zero width/height/depth will be considered "incomplete"
1233 * and texturing will effectively be disabled.
1234 *
1235 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1236 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1237 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1238 * \param level as passed to glTexImage
1239 * \param internalFormat as passed to glTexImage
1240 * \param format as passed to glTexImage
1241 * \param type as passed to glTexImage
1242 * \param width as passed to glTexImage
1243 * \param height as passed to glTexImage
1244 * \param depth as passed to glTexImage
1245 * \param border as passed to glTexImage
1246 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1247 */
1248 GLboolean
1249 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1250 GLint internalFormat, GLenum format, GLenum type,
1251 GLint width, GLint height, GLint depth, GLint border)
1252 {
1253 GLint maxSize;
1254
1255 (void) internalFormat;
1256 (void) format;
1257 (void) type;
1258
1259 switch (target) {
1260 case GL_PROXY_TEXTURE_1D:
1261 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1262 if (width < 2 * border || width > 2 + maxSize ||
1263 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1264 width >0 && !_mesa_is_pow_two(width - 2 * border)) ||
1265 level >= ctx->Const.MaxTextureLevels) {
1266 /* bad width or level */
1267 return GL_FALSE;
1268 }
1269 return GL_TRUE;
1270 case GL_PROXY_TEXTURE_2D:
1271 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1272 if (width < 2 * border || width > 2 + maxSize ||
1273 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1274 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1275 height < 2 * border || height > 2 + maxSize ||
1276 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1277 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1278 level >= ctx->Const.MaxTextureLevels) {
1279 /* bad width or height or level */
1280 return GL_FALSE;
1281 }
1282 return GL_TRUE;
1283 case GL_PROXY_TEXTURE_3D:
1284 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1285 if (width < 2 * border || width > 2 + maxSize ||
1286 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1287 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1288 height < 2 * border || height > 2 + maxSize ||
1289 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1290 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1291 depth < 2 * border || depth > 2 + maxSize ||
1292 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1293 depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) ||
1294 level >= ctx->Const.Max3DTextureLevels) {
1295 /* bad width or height or depth or level */
1296 return GL_FALSE;
1297 }
1298 return GL_TRUE;
1299 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1300 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1301 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1302 level != 0) {
1303 /* bad width or height or level */
1304 return GL_FALSE;
1305 }
1306 return GL_TRUE;
1307 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1308 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1309 if (width < 2 * border || width > 2 + maxSize ||
1310 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1311 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1312 height < 2 * border || height > 2 + maxSize ||
1313 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1314 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1315 level >= ctx->Const.MaxCubeTextureLevels) {
1316 /* bad width or height */
1317 return GL_FALSE;
1318 }
1319 return GL_TRUE;
1320 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1321 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1322 if (width < 2 * border || width > 2 + maxSize ||
1323 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1324 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1325 level >= ctx->Const.MaxTextureLevels) {
1326 /* bad width or level */
1327 return GL_FALSE;
1328 }
1329
1330 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1331 return GL_FALSE;
1332 }
1333 return GL_TRUE;
1334 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1335 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1336 if (width < 2 * border || width > 2 + maxSize ||
1337 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1338 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1339 height < 2 * border || height > 2 + maxSize ||
1340 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1341 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1342 level >= ctx->Const.MaxTextureLevels) {
1343 /* bad width or height or level */
1344 return GL_FALSE;
1345 }
1346 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1347 return GL_FALSE;
1348 }
1349 return GL_TRUE;
1350 default:
1351 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1352 return GL_FALSE;
1353 }
1354 }
1355
1356
1357 /**
1358 * Helper function to determine whether a target supports compressed textures
1359 */
1360 static GLboolean
1361 target_can_be_compressed(GLcontext *ctx, GLenum target)
1362 {
1363 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1364 || ((ctx->Extensions.ARB_texture_cube_map &&
1365 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1366 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1367 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1368 || ((ctx->Extensions.MESA_texture_array &&
1369 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1370 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1371 }
1372
1373
1374 /**
1375 * Test the glTexImage[123]D() parameters for errors.
1376 *
1377 * \param ctx GL context.
1378 * \param target texture target given by the user.
1379 * \param level image level given by the user.
1380 * \param internalFormat internal format given by the user.
1381 * \param format pixel data format given by the user.
1382 * \param type pixel data type given by the user.
1383 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1384 * \param width image width given by the user.
1385 * \param height image height given by the user.
1386 * \param depth image depth given by the user.
1387 * \param border image border given by the user.
1388 *
1389 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1390 *
1391 * Verifies each of the parameters against the constants specified in
1392 * __GLcontextRec::Const and the supported extensions, and according to the
1393 * OpenGL specification.
1394 */
1395 static GLboolean
1396 texture_error_check( GLcontext *ctx, GLenum target,
1397 GLint level, GLint internalFormat,
1398 GLenum format, GLenum type,
1399 GLuint dimensions,
1400 GLint width, GLint height,
1401 GLint depth, GLint border )
1402 {
1403 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1404 GLboolean sizeOK = GL_TRUE;
1405 GLboolean colorFormat, indexFormat;
1406 GLenum proxy_target;
1407
1408 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1409 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1410 if (!isProxy) {
1411 _mesa_error(ctx, GL_INVALID_VALUE,
1412 "glTexImage%dD(level=%d)", dimensions, level);
1413 }
1414 return GL_TRUE;
1415 }
1416
1417 /* Check border */
1418 if (border < 0 || border > 1 ||
1419 ((target == GL_TEXTURE_RECTANGLE_NV ||
1420 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1421 if (!isProxy) {
1422 _mesa_error(ctx, GL_INVALID_VALUE,
1423 "glTexImage%dD(border=%d)", dimensions, border);
1424 }
1425 return GL_TRUE;
1426 }
1427
1428 if (width < 0 || height < 0 || depth < 0) {
1429 if (!isProxy) {
1430 _mesa_error(ctx, GL_INVALID_VALUE,
1431 "glTexImage%dD(width, height or depth < 0)", dimensions);
1432 }
1433 return GL_TRUE;
1434 }
1435
1436 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1437 * level, width, height and depth.
1438 */
1439 if (dimensions == 1) {
1440 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1441 proxy_target = GL_PROXY_TEXTURE_1D;
1442 height = 1;
1443 depth = 1;
1444 }
1445 else {
1446 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1447 return GL_TRUE;
1448 }
1449 }
1450 else if (dimensions == 2) {
1451 depth = 1;
1452 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1453 proxy_target = GL_PROXY_TEXTURE_2D;
1454 }
1455 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1456 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1457 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1458 if (!ctx->Extensions.ARB_texture_cube_map) {
1459 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1460 return GL_TRUE;
1461 }
1462 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1463 sizeOK = (width == height);
1464 }
1465 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1466 target == GL_TEXTURE_RECTANGLE_NV) {
1467 if (!ctx->Extensions.NV_texture_rectangle) {
1468 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1469 return GL_TRUE;
1470 }
1471 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1472 }
1473 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1474 target == GL_TEXTURE_1D_ARRAY_EXT) {
1475 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1476 }
1477 else {
1478 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1479 return GL_TRUE;
1480 }
1481 }
1482 else if (dimensions == 3) {
1483 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1484 proxy_target = GL_PROXY_TEXTURE_3D;
1485 }
1486 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1487 target == GL_TEXTURE_2D_ARRAY_EXT) {
1488 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1489 }
1490 else {
1491 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1492 return GL_TRUE;
1493 }
1494 }
1495 else {
1496 _mesa_problem( ctx, "bad dims in texture_error_check" );
1497 return GL_TRUE;
1498 }
1499
1500 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1501 internalFormat, format,
1502 type, width, height,
1503 depth, border);
1504 if (!sizeOK) {
1505 if (!isProxy) {
1506 _mesa_error(ctx, GL_INVALID_VALUE,
1507 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1508 dimensions, level, width, height, depth);
1509 }
1510 return GL_TRUE;
1511 }
1512
1513 /* Check internalFormat */
1514 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1515 if (!isProxy) {
1516 _mesa_error(ctx, GL_INVALID_VALUE,
1517 "glTexImage%dD(internalFormat=0x%x)",
1518 dimensions, internalFormat);
1519 }
1520 return GL_TRUE;
1521 }
1522
1523 /* Check incoming image format and type */
1524 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1525 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1526 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1527 */
1528 if (!isProxy) {
1529 _mesa_error(ctx, GL_INVALID_OPERATION,
1530 "glTexImage%dD(format or type)", dimensions);
1531 }
1532 return GL_TRUE;
1533 }
1534
1535 /* make sure internal format and format basically agree */
1536 colorFormat = _mesa_is_color_format(format);
1537 indexFormat = is_index_format(format);
1538 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1539 (is_index_format(internalFormat) && !indexFormat) ||
1540 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1541 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1542 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
1543 if (!isProxy)
1544 _mesa_error(ctx, GL_INVALID_OPERATION,
1545 "glTexImage(internalFormat/format)");
1546 return GL_TRUE;
1547 }
1548
1549 /* additional checks for ycbcr textures */
1550 if (internalFormat == GL_YCBCR_MESA) {
1551 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1552 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1553 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1554 char message[100];
1555 _mesa_sprintf(message,
1556 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1557 _mesa_error(ctx, GL_INVALID_ENUM, message);
1558 return GL_TRUE; /* error */
1559 }
1560 if (target != GL_TEXTURE_2D &&
1561 target != GL_PROXY_TEXTURE_2D &&
1562 target != GL_TEXTURE_RECTANGLE_NV &&
1563 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1564 if (!isProxy)
1565 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1566 return GL_TRUE;
1567 }
1568 if (border != 0) {
1569 if (!isProxy) {
1570 char message[100];
1571 _mesa_sprintf(message,
1572 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1573 dimensions, border);
1574 _mesa_error(ctx, GL_INVALID_VALUE, message);
1575 }
1576 return GL_TRUE;
1577 }
1578 }
1579
1580 /* additional checks for depth textures */
1581 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1582 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1583 if (target != GL_TEXTURE_1D &&
1584 target != GL_PROXY_TEXTURE_1D &&
1585 target != GL_TEXTURE_2D &&
1586 target != GL_PROXY_TEXTURE_2D &&
1587 target != GL_TEXTURE_RECTANGLE_ARB &&
1588 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1589 if (!isProxy)
1590 _mesa_error(ctx, GL_INVALID_ENUM,
1591 "glTexImage(target/internalFormat)");
1592 return GL_TRUE;
1593 }
1594 }
1595
1596 /* additional checks for compressed textures */
1597 if (is_compressed_format(ctx, internalFormat)) {
1598 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1599 _mesa_error(ctx, GL_INVALID_ENUM,
1600 "glTexImage%d(target)", dimensions);
1601 return GL_TRUE;
1602 }
1603 if (border != 0) {
1604 if (!isProxy) {
1605 _mesa_error(ctx, GL_INVALID_OPERATION,
1606 "glTexImage%D(border!=0)", dimensions);
1607 }
1608 return GL_TRUE;
1609 }
1610 }
1611
1612 /* if we get here, the parameters are OK */
1613 return GL_FALSE;
1614 }
1615
1616
1617 /**
1618 * Test glTexSubImage[123]D() parameters for errors.
1619 *
1620 * \param ctx GL context.
1621 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1622 * \param target texture target given by the user.
1623 * \param level image level given by the user.
1624 * \param xoffset sub-image x offset given by the user.
1625 * \param yoffset sub-image y offset given by the user.
1626 * \param zoffset sub-image z offset given by the user.
1627 * \param format pixel data format given by the user.
1628 * \param type pixel data type given by the user.
1629 * \param width image width given by the user.
1630 * \param height image height given by the user.
1631 * \param depth image depth given by the user.
1632 *
1633 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1634 *
1635 * Verifies each of the parameters against the constants specified in
1636 * __GLcontextRec::Const and the supported extensions, and according to the
1637 * OpenGL specification.
1638 */
1639 static GLboolean
1640 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1641 GLenum target, GLint level,
1642 GLint xoffset, GLint yoffset, GLint zoffset,
1643 GLint width, GLint height, GLint depth,
1644 GLenum format, GLenum type )
1645 {
1646 /* Check target */
1647 if (dimensions == 1) {
1648 if (target != GL_TEXTURE_1D) {
1649 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1650 return GL_TRUE;
1651 }
1652 }
1653 else if (dimensions == 2) {
1654 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1655 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1656 if (!ctx->Extensions.ARB_texture_cube_map) {
1657 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1658 return GL_TRUE;
1659 }
1660 }
1661 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1662 if (!ctx->Extensions.NV_texture_rectangle) {
1663 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1664 return GL_TRUE;
1665 }
1666 }
1667 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1668 if (!ctx->Extensions.MESA_texture_array) {
1669 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1670 return GL_TRUE;
1671 }
1672 }
1673 else if (target != GL_TEXTURE_2D) {
1674 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1675 return GL_TRUE;
1676 }
1677 }
1678 else if (dimensions == 3) {
1679 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1680 if (!ctx->Extensions.MESA_texture_array) {
1681 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1682 return GL_TRUE;
1683 }
1684 }
1685 else if (target != GL_TEXTURE_3D) {
1686 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1687 return GL_TRUE;
1688 }
1689 }
1690 else {
1691 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1692 return GL_TRUE;
1693 }
1694
1695 /* Basic level check */
1696 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1697 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1698 return GL_TRUE;
1699 }
1700
1701 if (width < 0) {
1702 _mesa_error(ctx, GL_INVALID_VALUE,
1703 "glTexSubImage%dD(width=%d)", dimensions, width);
1704 return GL_TRUE;
1705 }
1706 if (height < 0 && dimensions > 1) {
1707 _mesa_error(ctx, GL_INVALID_VALUE,
1708 "glTexSubImage%dD(height=%d)", dimensions, height);
1709 return GL_TRUE;
1710 }
1711 if (depth < 0 && dimensions > 2) {
1712 _mesa_error(ctx, GL_INVALID_VALUE,
1713 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1714 return GL_TRUE;
1715 }
1716
1717 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1718 _mesa_error(ctx, GL_INVALID_ENUM,
1719 "glTexSubImage%dD(format or type)", dimensions);
1720 return GL_TRUE;
1721 }
1722
1723 return GL_FALSE;
1724 }
1725
1726 static GLboolean
1727 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1728 GLenum target, GLint level,
1729 GLint xoffset, GLint yoffset, GLint zoffset,
1730 GLint width, GLint height, GLint depth,
1731 GLenum format, GLenum type,
1732 const struct gl_texture_image *destTex )
1733 {
1734 if (!destTex) {
1735 /* undefined image level */
1736 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1737 return GL_TRUE;
1738 }
1739
1740 if (xoffset < -((GLint)destTex->Border)) {
1741 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1742 dimensions);
1743 return GL_TRUE;
1744 }
1745 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1746 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1747 dimensions);
1748 return GL_TRUE;
1749 }
1750 if (dimensions > 1) {
1751 if (yoffset < -((GLint)destTex->Border)) {
1752 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1753 dimensions);
1754 return GL_TRUE;
1755 }
1756 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1757 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1758 dimensions);
1759 return GL_TRUE;
1760 }
1761 }
1762 if (dimensions > 2) {
1763 if (zoffset < -((GLint)destTex->Border)) {
1764 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1765 return GL_TRUE;
1766 }
1767 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1768 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1769 return GL_TRUE;
1770 }
1771 }
1772
1773 #if FEATURE_EXT_texture_sRGB
1774 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1775 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1776 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1777 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1778 if ((width & 0x3) || (height & 0x3) ||
1779 (xoffset & 0x3) || (yoffset & 0x3))
1780 _mesa_error(ctx, GL_INVALID_OPERATION,
1781 "glTexSubImage%dD(size or offset not multiple of 4)",
1782 dimensions);
1783 return GL_TRUE;
1784 }
1785 #endif
1786
1787 if (destTex->IsCompressed) {
1788 if (!target_can_be_compressed(ctx, target)) {
1789 _mesa_error(ctx, GL_INVALID_ENUM,
1790 "glTexSubImage%D(target)", dimensions);
1791 return GL_TRUE;
1792 }
1793 /* offset must be multiple of 4 */
1794 if ((xoffset & 3) || (yoffset & 3)) {
1795 _mesa_error(ctx, GL_INVALID_OPERATION,
1796 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1797 return GL_TRUE;
1798 }
1799 /* size must be multiple of 4 or equal to whole texture size */
1800 if ((width & 3) && (GLuint) width != destTex->Width) {
1801 _mesa_error(ctx, GL_INVALID_OPERATION,
1802 "glTexSubImage%D(width)", dimensions);
1803 return GL_TRUE;
1804 }
1805 if ((height & 3) && (GLuint) height != destTex->Height) {
1806 _mesa_error(ctx, GL_INVALID_OPERATION,
1807 "glTexSubImage%D(width)", dimensions);
1808 return GL_TRUE;
1809 }
1810 }
1811
1812 return GL_FALSE;
1813 }
1814
1815
1816 /**
1817 * Test glCopyTexImage[12]D() parameters for errors.
1818 *
1819 * \param ctx GL context.
1820 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1821 * \param target texture target given by the user.
1822 * \param level image level given by the user.
1823 * \param internalFormat internal format given by the user.
1824 * \param width image width given by the user.
1825 * \param height image height given by the user.
1826 * \param depth image depth given by the user.
1827 * \param border texture border.
1828 *
1829 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1830 *
1831 * Verifies each of the parameters against the constants specified in
1832 * __GLcontextRec::Const and the supported extensions, and according to the
1833 * OpenGL specification.
1834 */
1835 static GLboolean
1836 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1837 GLenum target, GLint level, GLint internalFormat,
1838 GLint width, GLint height, GLint border )
1839 {
1840 GLenum type;
1841 GLboolean sizeOK;
1842 GLint format;
1843
1844 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1845 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1846 _mesa_error(ctx, GL_INVALID_VALUE,
1847 "glCopyTexImage%dD(level=%d)", dimensions, level);
1848 return GL_TRUE;
1849 }
1850
1851 /* Check that the source buffer is complete */
1852 if (ctx->ReadBuffer->Name) {
1853 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1854 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1855 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1856 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1857 return GL_TRUE;
1858 }
1859 }
1860
1861 /* Check border */
1862 if (border < 0 || border > 1 ||
1863 ((target == GL_TEXTURE_RECTANGLE_NV ||
1864 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1865 return GL_TRUE;
1866 }
1867
1868 format = _mesa_base_tex_format(ctx, internalFormat);
1869 if (format < 0) {
1870 _mesa_error(ctx, GL_INVALID_VALUE,
1871 "glCopyTexImage%dD(internalFormat)", dimensions);
1872 return GL_TRUE;
1873 }
1874
1875 /* NOTE: the format and type aren't really significant for
1876 * TestProxyTexImage(). Only the internalformat really matters.
1877 if (!_mesa_source_buffer_exists(ctx, format)) {
1878 _mesa_error(ctx, GL_INVALID_OPERATION,
1879 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1880 return GL_TRUE;
1881 }
1882
1883 */
1884 type = GL_FLOAT;
1885
1886 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1887 * level, width, height and depth.
1888 */
1889 if (dimensions == 1) {
1890 if (target == GL_TEXTURE_1D) {
1891 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1892 level, internalFormat,
1893 format, type,
1894 width, 1, 1, border);
1895 }
1896 else {
1897 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1898 return GL_TRUE;
1899 }
1900 }
1901 else if (dimensions == 2) {
1902 if (target == GL_TEXTURE_2D) {
1903 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1904 level, internalFormat,
1905 format, type,
1906 width, height, 1, border);
1907 }
1908 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1909 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1910 if (!ctx->Extensions.ARB_texture_cube_map) {
1911 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1912 return GL_TRUE;
1913 }
1914 sizeOK = (width == height) &&
1915 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1916 level, internalFormat, format, type,
1917 width, height, 1, border);
1918 }
1919 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1920 if (!ctx->Extensions.NV_texture_rectangle) {
1921 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1922 return GL_TRUE;
1923 }
1924 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1925 GL_PROXY_TEXTURE_RECTANGLE_NV,
1926 level, internalFormat,
1927 format, type,
1928 width, height, 1, border);
1929 }
1930 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1931 if (!ctx->Extensions.MESA_texture_array) {
1932 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1933 return GL_TRUE;
1934 }
1935 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1936 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1937 level, internalFormat,
1938 format, type,
1939 width, height, 1, border);
1940 }
1941 else {
1942 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1943 return GL_TRUE;
1944 }
1945 }
1946 else {
1947 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1948 return GL_TRUE;
1949 }
1950
1951 if (!sizeOK) {
1952 if (dimensions == 1) {
1953 _mesa_error(ctx, GL_INVALID_VALUE,
1954 "glCopyTexImage1D(width=%d)", width);
1955 }
1956 else {
1957 ASSERT(dimensions == 2);
1958 _mesa_error(ctx, GL_INVALID_VALUE,
1959 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1960 }
1961 return GL_TRUE;
1962 }
1963
1964 if (is_compressed_format(ctx, internalFormat)) {
1965 if (!target_can_be_compressed(ctx, target)) {
1966 _mesa_error(ctx, GL_INVALID_ENUM,
1967 "glCopyTexImage%d(target)", dimensions);
1968 return GL_TRUE;
1969 }
1970 if (border != 0) {
1971 _mesa_error(ctx, GL_INVALID_OPERATION,
1972 "glCopyTexImage%D(border!=0)", dimensions);
1973 return GL_TRUE;
1974 }
1975 }
1976 else if (is_depth_format(internalFormat)) {
1977 /* make sure we have depth/stencil buffers */
1978 if (!ctx->ReadBuffer->_DepthBuffer) {
1979 _mesa_error(ctx, GL_INVALID_OPERATION,
1980 "glCopyTexImage%D(no depth)", dimensions);
1981 return GL_TRUE;
1982 }
1983 }
1984 else if (is_depthstencil_format(internalFormat)) {
1985 /* make sure we have depth/stencil buffers */
1986 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
1987 _mesa_error(ctx, GL_INVALID_OPERATION,
1988 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
1989 return GL_TRUE;
1990 }
1991 }
1992
1993 /* if we get here, the parameters are OK */
1994 return GL_FALSE;
1995 }
1996
1997
1998 /**
1999 * Test glCopyTexSubImage[12]D() parameters for errors.
2000 * Note that this is the first part of error checking.
2001 * See also copytexsubimage_error_check2() below for the second part.
2002 *
2003 * \param ctx GL context.
2004 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2005 * \param target texture target given by the user.
2006 * \param level image level given by the user.
2007 *
2008 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2009 */
2010 static GLboolean
2011 copytexsubimage_error_check1( GLcontext *ctx, GLuint dimensions,
2012 GLenum target, GLint level)
2013 {
2014 /* Check that the source buffer is complete */
2015 if (ctx->ReadBuffer->Name) {
2016 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2017 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2018 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2019 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2020 return GL_TRUE;
2021 }
2022 }
2023
2024 /* Check target */
2025 if (dimensions == 1) {
2026 if (target != GL_TEXTURE_1D) {
2027 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2028 return GL_TRUE;
2029 }
2030 }
2031 else if (dimensions == 2) {
2032 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2033 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2034 if (!ctx->Extensions.ARB_texture_cube_map) {
2035 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2036 return GL_TRUE;
2037 }
2038 }
2039 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2040 if (!ctx->Extensions.NV_texture_rectangle) {
2041 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2042 return GL_TRUE;
2043 }
2044 }
2045 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2046 if (!ctx->Extensions.MESA_texture_array) {
2047 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2048 return GL_TRUE;
2049 }
2050 }
2051 else if (target != GL_TEXTURE_2D) {
2052 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2053 return GL_TRUE;
2054 }
2055 }
2056 else if (dimensions == 3) {
2057 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2058 (!ctx->Extensions.MESA_texture_array))
2059 && (target != GL_TEXTURE_3D)) {
2060 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2061 return GL_TRUE;
2062 }
2063 }
2064
2065 /* Check level */
2066 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2067 _mesa_error(ctx, GL_INVALID_VALUE,
2068 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2069 return GL_TRUE;
2070 }
2071
2072 return GL_FALSE;
2073 }
2074
2075
2076 /**
2077 * Second part of error checking for glCopyTexSubImage[12]D().
2078 * \param xoffset sub-image x offset given by the user.
2079 * \param yoffset sub-image y offset given by the user.
2080 * \param zoffset sub-image z offset given by the user.
2081 * \param width image width given by the user.
2082 * \param height image height given by the user.
2083 */
2084 static GLboolean
2085 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2086 GLenum target, GLint level,
2087 GLint xoffset, GLint yoffset, GLint zoffset,
2088 GLsizei width, GLsizei height,
2089 const struct gl_texture_image *teximage )
2090 {
2091 /* check that dest tex image exists */
2092 if (!teximage) {
2093 _mesa_error(ctx, GL_INVALID_OPERATION,
2094 "glCopyTexSubImage%dD(undefined texture level: %d)",
2095 dimensions, level);
2096 return GL_TRUE;
2097 }
2098
2099 /* Check size */
2100 if (width < 0) {
2101 _mesa_error(ctx, GL_INVALID_VALUE,
2102 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2103 return GL_TRUE;
2104 }
2105 if (dimensions > 1 && height < 0) {
2106 _mesa_error(ctx, GL_INVALID_VALUE,
2107 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2108 return GL_TRUE;
2109 }
2110
2111 /* check x/y offsets */
2112 if (xoffset < -((GLint)teximage->Border)) {
2113 _mesa_error(ctx, GL_INVALID_VALUE,
2114 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2115 return GL_TRUE;
2116 }
2117 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2118 _mesa_error(ctx, GL_INVALID_VALUE,
2119 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2120 return GL_TRUE;
2121 }
2122 if (dimensions > 1) {
2123 if (yoffset < -((GLint)teximage->Border)) {
2124 _mesa_error(ctx, GL_INVALID_VALUE,
2125 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2126 return GL_TRUE;
2127 }
2128 /* NOTE: we're adding the border here, not subtracting! */
2129 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2130 _mesa_error(ctx, GL_INVALID_VALUE,
2131 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2132 return GL_TRUE;
2133 }
2134 }
2135
2136 /* check z offset */
2137 if (dimensions > 2) {
2138 if (zoffset < -((GLint)teximage->Border)) {
2139 _mesa_error(ctx, GL_INVALID_VALUE,
2140 "glCopyTexSubImage%dD(zoffset)", dimensions);
2141 return GL_TRUE;
2142 }
2143 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2144 _mesa_error(ctx, GL_INVALID_VALUE,
2145 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2146 return GL_TRUE;
2147 }
2148 }
2149
2150 if (teximage->IsCompressed) {
2151 if (!target_can_be_compressed(ctx, target)) {
2152 _mesa_error(ctx, GL_INVALID_ENUM,
2153 "glCopyTexSubImage%d(target)", dimensions);
2154 return GL_TRUE;
2155 }
2156 /* offset must be multiple of 4 */
2157 if ((xoffset & 3) || (yoffset & 3)) {
2158 _mesa_error(ctx, GL_INVALID_VALUE,
2159 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2160 return GL_TRUE;
2161 }
2162 /* size must be multiple of 4 */
2163 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2164 _mesa_error(ctx, GL_INVALID_VALUE,
2165 "glCopyTexSubImage%D(width)", dimensions);
2166 return GL_TRUE;
2167 }
2168 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2169 _mesa_error(ctx, GL_INVALID_VALUE,
2170 "glCopyTexSubImage%D(height)", dimensions);
2171 return GL_TRUE;
2172 }
2173 }
2174
2175 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2176 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2177 return GL_TRUE;
2178 }
2179
2180 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2181 _mesa_error(ctx, GL_INVALID_OPERATION,
2182 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2183 dimensions, teximage->_BaseFormat);
2184 return GL_TRUE;
2185 }
2186
2187 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2188 if (!ctx->ReadBuffer->_DepthBuffer) {
2189 _mesa_error(ctx, GL_INVALID_OPERATION,
2190 "glCopyTexSubImage%D(no depth buffer)",
2191 dimensions);
2192 return GL_TRUE;
2193 }
2194 }
2195 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2196 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2197 _mesa_error(ctx, GL_INVALID_OPERATION,
2198 "glCopyTexSubImage%D(no depth/stencil buffer)",
2199 dimensions);
2200 return GL_TRUE;
2201 }
2202 }
2203
2204 /* if we get here, the parameters are OK */
2205 return GL_FALSE;
2206 }
2207
2208
2209 /**
2210 * Get texture image. Called by glGetTexImage.
2211 *
2212 * \param target texture target.
2213 * \param level image level.
2214 * \param format pixel data format for returned image.
2215 * \param type pixel data type for returned image.
2216 * \param pixels returned pixel data.
2217 */
2218 void GLAPIENTRY
2219 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2220 GLenum type, GLvoid *pixels )
2221 {
2222 const struct gl_texture_unit *texUnit;
2223 struct gl_texture_object *texObj;
2224 struct gl_texture_image *texImage;
2225 GLint maxLevels = 0;
2226 GET_CURRENT_CONTEXT(ctx);
2227 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2228
2229 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2230 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2231 if (!texObj || _mesa_is_proxy_texture(target)) {
2232 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2233 return;
2234 }
2235
2236 maxLevels = _mesa_max_texture_levels(ctx, target);
2237 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2238
2239 if (level < 0 || level >= maxLevels) {
2240 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2241 return;
2242 }
2243
2244 if (_mesa_sizeof_packed_type(type) <= 0) {
2245 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2246 return;
2247 }
2248
2249 if (_mesa_components_in_format(format) <= 0 ||
2250 format == GL_STENCIL_INDEX) {
2251 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2252 return;
2253 }
2254
2255 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2256 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2257 return;
2258 }
2259
2260 if (!ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2261 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2262 return;
2263 }
2264
2265 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2266 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2267 return;
2268 }
2269
2270 if (!ctx->Extensions.EXT_packed_depth_stencil
2271 && is_depthstencil_format(format)) {
2272 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2273 return;
2274 }
2275
2276 _mesa_lock_texture(ctx, texObj);
2277 {
2278 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2279 if (!texImage) {
2280 /* invalid mipmap level, not an error */
2281 goto out;
2282 }
2283
2284
2285 /* Make sure the requested image format is compatible with the
2286 * texture's format. Note that a color index texture can be converted
2287 * to RGBA so that combo is allowed.
2288 */
2289 if (_mesa_is_color_format(format)
2290 && !_mesa_is_color_format(texImage->TexFormat->BaseFormat)
2291 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2292 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2293 goto out;
2294 }
2295 else if (is_index_format(format)
2296 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2297 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2298 goto out;
2299 }
2300 else if (is_depth_format(format)
2301 && !is_depth_format(texImage->TexFormat->BaseFormat)
2302 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2303 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2304 goto out;
2305 }
2306 else if (is_ycbcr_format(format)
2307 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2308 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2309 goto out;
2310 }
2311 else if (is_depthstencil_format(format)
2312 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2313 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2314 goto out;
2315 }
2316
2317 if (ctx->Pack.BufferObj->Name) {
2318 /* packing texture image into a PBO */
2319 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2320 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2321 texImage->Height, texImage->Depth,
2322 format, type, pixels)) {
2323 _mesa_error(ctx, GL_INVALID_OPERATION,
2324 "glGetTexImage(invalid PBO access)");
2325 goto out;
2326 }
2327 }
2328
2329 /* typically, this will call _mesa_get_teximage() */
2330 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2331 texObj, texImage);
2332
2333 }
2334 out:
2335 _mesa_unlock_texture(ctx, texObj);
2336 }
2337
2338
2339 /** Callback info for walking over FBO hash table */
2340 struct cb_info
2341 {
2342 GLcontext *ctx;
2343 struct gl_texture_object *texObj;
2344 GLuint level, face;
2345 };
2346
2347
2348 /**
2349 * Check render to texture callback. Called from _mesa_HashWalk().
2350 */
2351 static void
2352 check_rtt_cb(GLuint key, void *data, void *userData)
2353 {
2354 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2355 const struct cb_info *info = (struct cb_info *) userData;
2356 GLcontext *ctx = info->ctx;
2357 const struct gl_texture_object *texObj = info->texObj;
2358 const GLuint level = info->level, face = info->face;
2359
2360 /* If this is a user-created FBO */
2361 if (fb->Name) {
2362 GLuint i;
2363 /* check if any of the FBO's attachments point to 'texObj' */
2364 for (i = 0; i < BUFFER_COUNT; i++) {
2365 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2366 if (att->Type == GL_TEXTURE &&
2367 att->Texture == texObj &&
2368 att->TextureLevel == level &&
2369 att->CubeMapFace == face) {
2370 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2371 /* Tell driver about the new renderbuffer texture */
2372 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2373 /* Mark fb status as indeterminate to force re-validation */
2374 fb->_Status = 0;
2375 }
2376 }
2377 }
2378 }
2379
2380
2381 /**
2382 * When a texture image is specified we have to check if it's bound to
2383 * any framebuffer objects (render to texture) in order to detect changes
2384 * in size or format since that effects FBO completeness.
2385 * Any FBOs rendering into the texture must be re-validated.
2386 */
2387 static void
2388 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2389 GLuint face, GLuint level)
2390 {
2391 /* Only check this texture if it's been marked as RenderToTexture */
2392 if (texObj->_RenderToTexture) {
2393 struct cb_info info;
2394 info.ctx = ctx;
2395 info.texObj = texObj;
2396 info.level = level;
2397 info.face = face;
2398 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2399 }
2400 }
2401
2402
2403
2404 /*
2405 * Called from the API. Note that width includes the border.
2406 */
2407 void GLAPIENTRY
2408 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2409 GLsizei width, GLint border, GLenum format,
2410 GLenum type, const GLvoid *pixels )
2411 {
2412 GLsizei postConvWidth = width;
2413 GET_CURRENT_CONTEXT(ctx);
2414 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2415
2416 #if FEATURE_convolve
2417 if (_mesa_is_color_format(internalFormat)) {
2418 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2419 }
2420 #endif
2421
2422 if (target == GL_TEXTURE_1D) {
2423 /* non-proxy target */
2424 struct gl_texture_unit *texUnit;
2425 struct gl_texture_object *texObj;
2426 struct gl_texture_image *texImage;
2427 const GLuint face = _mesa_tex_target_to_face(target);
2428
2429 if (texture_error_check(ctx, target, level, internalFormat,
2430 format, type, 1, postConvWidth, 1, 1, border)) {
2431 return; /* error was recorded */
2432 }
2433
2434 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2435 _mesa_update_state(ctx);
2436
2437 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2438 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2439 _mesa_lock_texture(ctx, texObj);
2440 {
2441 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2442 if (!texImage) {
2443 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2444 goto out;
2445 }
2446
2447 if (texImage->Data) {
2448 ctx->Driver.FreeTexImageData( ctx, texImage );
2449 }
2450
2451 ASSERT(texImage->Data == NULL);
2452
2453 clear_teximage_fields(texImage); /* not really needed, but helpful */
2454 _mesa_init_teximage_fields(ctx, target, texImage,
2455 postConvWidth, 1, 1,
2456 border, internalFormat);
2457
2458 ASSERT(ctx->Driver.TexImage1D);
2459
2460 /* Give the texture to the driver! <pixels> may be null! */
2461 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2462 width, border, format, type, pixels,
2463 &ctx->Unpack, texObj, texImage);
2464
2465 ASSERT(texImage->TexFormat);
2466
2467 update_fbo_texture(ctx, texObj, face, level);
2468
2469 /* state update */
2470 texObj->_Complete = GL_FALSE;
2471 ctx->NewState |= _NEW_TEXTURE;
2472 }
2473 out:
2474 _mesa_unlock_texture(ctx, texObj);
2475 }
2476 else if (target == GL_PROXY_TEXTURE_1D) {
2477 /* Proxy texture: check for errors and update proxy state */
2478 struct gl_texture_image *texImage;
2479 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2480 if (texture_error_check(ctx, target, level, internalFormat,
2481 format, type, 1, postConvWidth, 1, 1, border)) {
2482 /* when error, clear all proxy texture image parameters */
2483 if (texImage)
2484 clear_teximage_fields(texImage);
2485 }
2486 else {
2487 /* no error, set the tex image parameters */
2488 ASSERT(texImage);
2489 _mesa_init_teximage_fields(ctx, target, texImage,
2490 postConvWidth, 1, 1,
2491 border, internalFormat);
2492 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2493 internalFormat, format, type);
2494 }
2495 }
2496 else {
2497 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2498 return;
2499 }
2500 }
2501
2502
2503 void GLAPIENTRY
2504 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2505 GLsizei width, GLsizei height, GLint border,
2506 GLenum format, GLenum type,
2507 const GLvoid *pixels )
2508 {
2509 GLsizei postConvWidth = width, postConvHeight = height;
2510 GET_CURRENT_CONTEXT(ctx);
2511 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2512
2513 #if FEATURE_convolve
2514 if (_mesa_is_color_format(internalFormat)) {
2515 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2516 &postConvHeight);
2517 }
2518 #endif
2519
2520 if (target == GL_TEXTURE_2D ||
2521 (ctx->Extensions.ARB_texture_cube_map &&
2522 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2523 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2524 (ctx->Extensions.NV_texture_rectangle &&
2525 target == GL_TEXTURE_RECTANGLE_NV) ||
2526 (ctx->Extensions.MESA_texture_array &&
2527 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2528 /* non-proxy target */
2529 struct gl_texture_unit *texUnit;
2530 struct gl_texture_object *texObj;
2531 struct gl_texture_image *texImage;
2532 const GLuint face = _mesa_tex_target_to_face(target);
2533
2534 if (texture_error_check(ctx, target, level, internalFormat,
2535 format, type, 2, postConvWidth, postConvHeight,
2536 1, border)) {
2537 return; /* error was recorded */
2538 }
2539
2540 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2541 _mesa_update_state(ctx);
2542
2543 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2544 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2545 _mesa_lock_texture(ctx, texObj);
2546 {
2547 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2548 if (!texImage) {
2549 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2550 goto out;
2551 }
2552
2553 if (texImage->Data) {
2554 ctx->Driver.FreeTexImageData( ctx, texImage );
2555 }
2556
2557 ASSERT(texImage->Data == NULL);
2558 clear_teximage_fields(texImage); /* not really needed, but helpful */
2559 _mesa_init_teximage_fields(ctx, target, texImage,
2560 postConvWidth, postConvHeight, 1,
2561 border, internalFormat);
2562
2563 ASSERT(ctx->Driver.TexImage2D);
2564
2565 /* Give the texture to the driver! <pixels> may be null! */
2566 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2567 width, height, border, format, type, pixels,
2568 &ctx->Unpack, texObj, texImage);
2569
2570 ASSERT(texImage->TexFormat);
2571
2572 update_fbo_texture(ctx, texObj, face, level);
2573
2574 /* state update */
2575 texObj->_Complete = GL_FALSE;
2576 ctx->NewState |= _NEW_TEXTURE;
2577 }
2578 out:
2579 _mesa_unlock_texture(ctx, texObj);
2580 }
2581 else if (target == GL_PROXY_TEXTURE_2D ||
2582 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2583 ctx->Extensions.ARB_texture_cube_map) ||
2584 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2585 ctx->Extensions.NV_texture_rectangle) ||
2586 (ctx->Extensions.MESA_texture_array &&
2587 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2588 /* Proxy texture: check for errors and update proxy state */
2589 struct gl_texture_image *texImage;
2590 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2591 if (texture_error_check(ctx, target, level, internalFormat,
2592 format, type, 2, postConvWidth, postConvHeight,
2593 1, border)) {
2594 /* when error, clear all proxy texture image parameters */
2595 if (texImage)
2596 clear_teximage_fields(texImage);
2597 }
2598 else {
2599 /* no error, set the tex image parameters */
2600 _mesa_init_teximage_fields(ctx, target, texImage,
2601 postConvWidth, postConvHeight, 1,
2602 border, internalFormat);
2603 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2604 internalFormat, format, type);
2605 }
2606 }
2607 else {
2608 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2609 return;
2610 }
2611 }
2612
2613
2614 /*
2615 * Called by the API or display list executor.
2616 * Note that width and height include the border.
2617 */
2618 void GLAPIENTRY
2619 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2620 GLsizei width, GLsizei height, GLsizei depth,
2621 GLint border, GLenum format, GLenum type,
2622 const GLvoid *pixels )
2623 {
2624 GET_CURRENT_CONTEXT(ctx);
2625 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2626
2627 if (target == GL_TEXTURE_3D ||
2628 (ctx->Extensions.MESA_texture_array &&
2629 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2630 /* non-proxy target */
2631 struct gl_texture_unit *texUnit;
2632 struct gl_texture_object *texObj;
2633 struct gl_texture_image *texImage;
2634 const GLuint face = _mesa_tex_target_to_face(target);
2635
2636 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2637 format, type, 3, width, height, depth, border)) {
2638 return; /* error was recorded */
2639 }
2640
2641 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2642 _mesa_update_state(ctx);
2643
2644 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2645 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2646 _mesa_lock_texture(ctx, texObj);
2647 {
2648 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2649 if (!texImage) {
2650 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2651 goto out;
2652 }
2653
2654 if (texImage->Data) {
2655 ctx->Driver.FreeTexImageData( ctx, texImage );
2656 }
2657
2658 ASSERT(texImage->Data == NULL);
2659 clear_teximage_fields(texImage); /* not really needed, but helpful */
2660 _mesa_init_teximage_fields(ctx, target, texImage,
2661 width, height, depth,
2662 border, internalFormat);
2663
2664 ASSERT(ctx->Driver.TexImage3D);
2665
2666 /* Give the texture to the driver! <pixels> may be null! */
2667 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2668 width, height, depth, border, format, type,
2669 pixels, &ctx->Unpack, texObj, texImage);
2670
2671 ASSERT(texImage->TexFormat);
2672
2673 update_fbo_texture(ctx, texObj, face, level);
2674
2675 /* state update */
2676 texObj->_Complete = GL_FALSE;
2677 ctx->NewState |= _NEW_TEXTURE;
2678 }
2679 out:
2680 _mesa_unlock_texture(ctx, texObj);
2681 }
2682 else if (target == GL_PROXY_TEXTURE_3D ||
2683 (ctx->Extensions.MESA_texture_array &&
2684 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2685 /* Proxy texture: check for errors and update proxy state */
2686 struct gl_texture_image *texImage;
2687 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2688 if (texture_error_check(ctx, target, level, internalFormat,
2689 format, type, 3, width, height, depth, border)) {
2690 /* when error, clear all proxy texture image parameters */
2691 if (texImage)
2692 clear_teximage_fields(texImage);
2693 }
2694 else {
2695 /* no error, set the tex image parameters */
2696 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2697 depth, border, internalFormat);
2698 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2699 internalFormat, format, type);
2700 }
2701 }
2702 else {
2703 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2704 return;
2705 }
2706 }
2707
2708
2709 void GLAPIENTRY
2710 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2711 GLsizei width, GLsizei height, GLsizei depth,
2712 GLint border, GLenum format, GLenum type,
2713 const GLvoid *pixels )
2714 {
2715 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2716 depth, border, format, type, pixels);
2717 }
2718
2719
2720
2721 void GLAPIENTRY
2722 _mesa_TexSubImage1D( GLenum target, GLint level,
2723 GLint xoffset, GLsizei width,
2724 GLenum format, GLenum type,
2725 const GLvoid *pixels )
2726 {
2727 GLsizei postConvWidth = width;
2728 struct gl_texture_unit *texUnit;
2729 struct gl_texture_object *texObj;
2730 struct gl_texture_image *texImage = NULL;
2731 GET_CURRENT_CONTEXT(ctx);
2732 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2733
2734 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2735 _mesa_update_state(ctx);
2736
2737 #if FEATURE_convolve
2738 /* XXX should test internal format */
2739 if (_mesa_is_color_format(format)) {
2740 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2741 }
2742 #endif
2743
2744 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2745 postConvWidth, 1, 1, format, type)) {
2746 return; /* error was detected */
2747 }
2748
2749
2750 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2751 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2752 assert(texObj);
2753
2754 _mesa_lock_texture(ctx, texObj);
2755 {
2756 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2757
2758 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2759 postConvWidth, 1, 1, format, type, texImage)) {
2760 goto out; /* error was detected */
2761 }
2762
2763 if (width == 0)
2764 goto out; /* no-op, not an error */
2765
2766 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2767 xoffset += texImage->Border;
2768
2769 ASSERT(ctx->Driver.TexSubImage1D);
2770 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2771 format, type, pixels, &ctx->Unpack,
2772 texObj, texImage);
2773 ctx->NewState |= _NEW_TEXTURE;
2774 }
2775 out:
2776 _mesa_unlock_texture(ctx, texObj);
2777 }
2778
2779
2780 void GLAPIENTRY
2781 _mesa_TexSubImage2D( GLenum target, GLint level,
2782 GLint xoffset, GLint yoffset,
2783 GLsizei width, GLsizei height,
2784 GLenum format, GLenum type,
2785 const GLvoid *pixels )
2786 {
2787 GLsizei postConvWidth = width, postConvHeight = height;
2788 struct gl_texture_unit *texUnit;
2789 struct gl_texture_object *texObj;
2790 struct gl_texture_image *texImage;
2791 GET_CURRENT_CONTEXT(ctx);
2792 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2793
2794 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2795 _mesa_update_state(ctx);
2796
2797 #if FEATURE_convolve
2798 /* XXX should test internal format */
2799 if (_mesa_is_color_format(format)) {
2800 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2801 &postConvHeight);
2802 }
2803 #endif
2804
2805 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2806 postConvWidth, postConvHeight, 1, format, type)) {
2807 return; /* error was detected */
2808 }
2809
2810 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2811 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2812 _mesa_lock_texture(ctx, texObj);
2813 {
2814 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2815
2816 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2817 postConvWidth, postConvHeight, 1, format, type,
2818 texImage)) {
2819 goto out; /* error was detected */
2820 }
2821
2822 if (width == 0 || height == 0)
2823 goto out; /* no-op, not an error */
2824
2825 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2826 xoffset += texImage->Border;
2827 yoffset += texImage->Border;
2828
2829 ASSERT(ctx->Driver.TexSubImage2D);
2830 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2831 width, height, format, type, pixels,
2832 &ctx->Unpack, texObj, texImage);
2833 ctx->NewState |= _NEW_TEXTURE;
2834 }
2835 out:
2836 _mesa_unlock_texture(ctx, texObj);
2837 }
2838
2839
2840
2841 void GLAPIENTRY
2842 _mesa_TexSubImage3D( GLenum target, GLint level,
2843 GLint xoffset, GLint yoffset, GLint zoffset,
2844 GLsizei width, GLsizei height, GLsizei depth,
2845 GLenum format, GLenum type,
2846 const GLvoid *pixels )
2847 {
2848 struct gl_texture_unit *texUnit;
2849 struct gl_texture_object *texObj;
2850 struct gl_texture_image *texImage;
2851 GET_CURRENT_CONTEXT(ctx);
2852 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2853
2854 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2855 _mesa_update_state(ctx);
2856
2857 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2858 width, height, depth, format, type)) {
2859 return; /* error was detected */
2860 }
2861
2862 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2863 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2864
2865 _mesa_lock_texture(ctx, texObj);
2866 {
2867 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2868
2869 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2870 width, height, depth, format, type, texImage)) {
2871 goto out; /* error was detected */
2872 }
2873
2874 if (width == 0 || height == 0 || height == 0)
2875 goto out; /* no-op, not an error */
2876
2877 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2878 xoffset += texImage->Border;
2879 yoffset += texImage->Border;
2880 zoffset += texImage->Border;
2881
2882 ASSERT(ctx->Driver.TexSubImage3D);
2883 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2884 xoffset, yoffset, zoffset,
2885 width, height, depth,
2886 format, type, pixels,
2887 &ctx->Unpack, texObj, texImage );
2888 ctx->NewState |= _NEW_TEXTURE;
2889 }
2890 out:
2891 _mesa_unlock_texture(ctx, texObj);
2892 }
2893
2894
2895
2896 void GLAPIENTRY
2897 _mesa_CopyTexImage1D( GLenum target, GLint level,
2898 GLenum internalFormat,
2899 GLint x, GLint y,
2900 GLsizei width, GLint border )
2901 {
2902 struct gl_texture_unit *texUnit;
2903 struct gl_texture_object *texObj;
2904 struct gl_texture_image *texImage;
2905 GLsizei postConvWidth = width;
2906 const GLuint face = _mesa_tex_target_to_face(target);
2907 GET_CURRENT_CONTEXT(ctx);
2908 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2909
2910 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2911 _mesa_update_state(ctx);
2912
2913 #if FEATURE_convolve
2914 if (_mesa_is_color_format(internalFormat)) {
2915 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2916 }
2917 #endif
2918
2919 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2920 postConvWidth, 1, border))
2921 return;
2922
2923 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2924 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2925 _mesa_lock_texture(ctx, texObj);
2926 {
2927 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2928 if (!texImage) {
2929 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2930 goto out;
2931 }
2932
2933 if (texImage->Data) {
2934 ctx->Driver.FreeTexImageData( ctx, texImage );
2935 }
2936
2937 ASSERT(texImage->Data == NULL);
2938
2939 clear_teximage_fields(texImage); /* not really needed, but helpful */
2940 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2941 border, internalFormat);
2942
2943
2944 ASSERT(ctx->Driver.CopyTexImage1D);
2945 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2946 x, y, width, border);
2947
2948 ASSERT(texImage->TexFormat);
2949
2950 update_fbo_texture(ctx, texObj, face, level);
2951
2952 /* state update */
2953 texObj->_Complete = GL_FALSE;
2954 ctx->NewState |= _NEW_TEXTURE;
2955 }
2956 out:
2957 _mesa_unlock_texture(ctx, texObj);
2958 }
2959
2960
2961
2962 void GLAPIENTRY
2963 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2964 GLint x, GLint y, GLsizei width, GLsizei height,
2965 GLint border )
2966 {
2967 struct gl_texture_unit *texUnit;
2968 struct gl_texture_object *texObj;
2969 struct gl_texture_image *texImage;
2970 GLsizei postConvWidth = width, postConvHeight = height;
2971 const GLuint face = _mesa_tex_target_to_face(target);
2972 GET_CURRENT_CONTEXT(ctx);
2973 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2974
2975 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2976 _mesa_update_state(ctx);
2977
2978 #if FEATURE_convolve
2979 if (_mesa_is_color_format(internalFormat)) {
2980 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2981 &postConvHeight);
2982 }
2983 #endif
2984
2985 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2986 postConvWidth, postConvHeight, border))
2987 return;
2988
2989 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2990 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2991
2992 _mesa_lock_texture(ctx, texObj);
2993 {
2994 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2995
2996 if (!texImage) {
2997 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2998 goto out;
2999 }
3000
3001 if (texImage->Data) {
3002 ctx->Driver.FreeTexImageData( ctx, texImage );
3003 }
3004
3005 ASSERT(texImage->Data == NULL);
3006
3007 clear_teximage_fields(texImage); /* not really needed, but helpful */
3008 _mesa_init_teximage_fields(ctx, target, texImage,
3009 postConvWidth, postConvHeight, 1,
3010 border, internalFormat);
3011
3012 ASSERT(ctx->Driver.CopyTexImage2D);
3013 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
3014 x, y, width, height, border);
3015
3016 ASSERT(texImage->TexFormat);
3017
3018 update_fbo_texture(ctx, texObj, face, level);
3019
3020 /* state update */
3021 texObj->_Complete = GL_FALSE;
3022 ctx->NewState |= _NEW_TEXTURE;
3023 }
3024 out:
3025 _mesa_unlock_texture(ctx, texObj);
3026 }
3027
3028
3029 void GLAPIENTRY
3030 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3031 GLint xoffset, GLint x, GLint y, GLsizei width )
3032 {
3033 struct gl_texture_unit *texUnit;
3034 struct gl_texture_object *texObj;
3035 struct gl_texture_image *texImage;
3036 GLsizei postConvWidth = width;
3037 GLint yoffset = 0;
3038 GLsizei height = 1;
3039
3040 GET_CURRENT_CONTEXT(ctx);
3041 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3042
3043 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
3044 _mesa_update_state(ctx);
3045
3046 if (copytexsubimage_error_check1(ctx, 1, target, level))
3047 return;
3048
3049 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3050 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3051
3052 _mesa_lock_texture(ctx, texObj);
3053 {
3054 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3055
3056 #if FEATURE_convolve
3057 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3058 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3059 }
3060 #endif
3061
3062 if (copytexsubimage_error_check2(ctx, 1, target, level,
3063 xoffset, 0, 0, postConvWidth, 1,
3064 texImage))
3065 goto out;
3066
3067
3068 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3069 xoffset += texImage->Border;
3070
3071 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3072 &width, &height)) {
3073 ASSERT(ctx->Driver.CopyTexSubImage1D);
3074 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
3075 xoffset, x, y, width);
3076 }
3077
3078 ctx->NewState |= _NEW_TEXTURE;
3079 }
3080 out:
3081 _mesa_unlock_texture(ctx, texObj);
3082 }
3083
3084
3085
3086 void GLAPIENTRY
3087 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3088 GLint xoffset, GLint yoffset,
3089 GLint x, GLint y, GLsizei width, GLsizei height )
3090 {
3091 struct gl_texture_unit *texUnit;
3092 struct gl_texture_object *texObj;
3093 struct gl_texture_image *texImage;
3094 GLsizei postConvWidth = width, postConvHeight = height;
3095 GET_CURRENT_CONTEXT(ctx);
3096 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3097
3098 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
3099 _mesa_update_state(ctx);
3100
3101 if (copytexsubimage_error_check1(ctx, 2, target, level))
3102 return;
3103
3104 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3105 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3106
3107 _mesa_lock_texture(ctx, texObj);
3108 {
3109 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3110
3111 #if FEATURE_convolve
3112 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3113 _mesa_adjust_image_for_convolution(ctx, 2,
3114 &postConvWidth, &postConvHeight);
3115 }
3116 #endif
3117
3118 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3119 postConvWidth, postConvHeight, texImage))
3120 goto out;
3121
3122 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3123 xoffset += texImage->Border;
3124 yoffset += texImage->Border;
3125
3126 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3127 &width, &height)) {
3128 ASSERT(ctx->Driver.CopyTexSubImage2D);
3129 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
3130 xoffset, yoffset, x, y, width, height);
3131 }
3132
3133 ctx->NewState |= _NEW_TEXTURE;
3134 }
3135 out:
3136 _mesa_unlock_texture(ctx, texObj);
3137 }
3138
3139
3140
3141 void GLAPIENTRY
3142 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3143 GLint xoffset, GLint yoffset, GLint zoffset,
3144 GLint x, GLint y, GLsizei width, GLsizei height )
3145 {
3146 struct gl_texture_unit *texUnit;
3147 struct gl_texture_object *texObj;
3148 struct gl_texture_image *texImage;
3149 GLsizei postConvWidth = width, postConvHeight = height;
3150 GET_CURRENT_CONTEXT(ctx);
3151 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3152
3153 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
3154 _mesa_update_state(ctx);
3155
3156 if (copytexsubimage_error_check1(ctx, 3, target, level))
3157 return;
3158
3159 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3160 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3161
3162 _mesa_lock_texture(ctx, texObj);
3163 {
3164 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3165
3166 #if FEATURE_convolve
3167 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
3168 _mesa_adjust_image_for_convolution(ctx, 2,
3169 &postConvWidth, &postConvHeight);
3170 }
3171 #endif
3172
3173 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3174 zoffset, postConvWidth, postConvHeight,
3175 texImage))
3176 goto out;
3177
3178 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3179 xoffset += texImage->Border;
3180 yoffset += texImage->Border;
3181 zoffset += texImage->Border;
3182
3183 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3184 &width, &height)) {
3185 ASSERT(ctx->Driver.CopyTexSubImage3D);
3186 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
3187 xoffset, yoffset, zoffset,
3188 x, y, width, height);
3189 }
3190
3191 ctx->NewState |= _NEW_TEXTURE;
3192 }
3193 out:
3194 _mesa_unlock_texture(ctx, texObj);
3195 }
3196
3197
3198
3199
3200 /**********************************************************************/
3201 /****** Compressed Textures ******/
3202 /**********************************************************************/
3203
3204
3205 /**
3206 * Error checking for glCompressedTexImage[123]D().
3207 * \return error code or GL_NO_ERROR.
3208 */
3209 static GLenum
3210 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3211 GLenum target, GLint level,
3212 GLenum internalFormat, GLsizei width,
3213 GLsizei height, GLsizei depth, GLint border,
3214 GLsizei imageSize)
3215 {
3216 GLint expectedSize, maxLevels = 0, maxTextureSize;
3217
3218 if (dimensions == 1) {
3219 /* 1D compressed textures not allowed */
3220 return GL_INVALID_ENUM;
3221 }
3222 else if (dimensions == 2) {
3223 if (target == GL_PROXY_TEXTURE_2D) {
3224 maxLevels = ctx->Const.MaxTextureLevels;
3225 }
3226 else if (target == GL_TEXTURE_2D) {
3227 maxLevels = ctx->Const.MaxTextureLevels;
3228 }
3229 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3230 if (!ctx->Extensions.ARB_texture_cube_map)
3231 return GL_INVALID_ENUM; /*target*/
3232 maxLevels = ctx->Const.MaxCubeTextureLevels;
3233 }
3234 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3235 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3236 if (!ctx->Extensions.ARB_texture_cube_map)
3237 return GL_INVALID_ENUM; /*target*/
3238 maxLevels = ctx->Const.MaxCubeTextureLevels;
3239 }
3240 else {
3241 return GL_INVALID_ENUM; /*target*/
3242 }
3243 }
3244 else if (dimensions == 3) {
3245 /* 3D compressed textures not allowed */
3246 return GL_INVALID_ENUM;
3247 }
3248
3249 maxTextureSize = 1 << (maxLevels - 1);
3250
3251 /* This will detect any invalid internalFormat value */
3252 if (!is_compressed_format(ctx, internalFormat))
3253 return GL_INVALID_ENUM;
3254
3255 /* This should really never fail */
3256 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3257 return GL_INVALID_ENUM;
3258
3259 if (border != 0)
3260 return GL_INVALID_VALUE;
3261
3262 /*
3263 * XXX We should probably use the proxy texture error check function here.
3264 */
3265 if (width < 1 || width > maxTextureSize ||
3266 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(width)))
3267 return GL_INVALID_VALUE;
3268
3269 if ((height < 1 || height > maxTextureSize ||
3270 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(height)))
3271 && dimensions > 1)
3272 return GL_INVALID_VALUE;
3273
3274 if ((depth < 1 || depth > maxTextureSize ||
3275 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(depth)))
3276 && dimensions > 2)
3277 return GL_INVALID_VALUE;
3278
3279 /* For cube map, width must equal height */
3280 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3281 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3282 return GL_INVALID_VALUE;
3283
3284 if (level < 0 || level >= maxLevels)
3285 return GL_INVALID_VALUE;
3286
3287 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3288 depth, internalFormat);
3289 if (expectedSize != imageSize)
3290 return GL_INVALID_VALUE;
3291
3292 #if FEATURE_EXT_texture_sRGB
3293 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3294 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3295 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3296 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3297 && border != 0) {
3298 return GL_INVALID_OPERATION;
3299 }
3300 #endif
3301
3302 return GL_NO_ERROR;
3303 }
3304
3305
3306 /**
3307 * Error checking for glCompressedTexSubImage[123]D().
3308 * \warning There are some bad assumptions here about the size of compressed
3309 * texture tiles (multiple of 4) used to test the validity of the
3310 * offset and size parameters.
3311 * \return error code or GL_NO_ERROR.
3312 */
3313 static GLenum
3314 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3315 GLenum target, GLint level,
3316 GLint xoffset, GLint yoffset, GLint zoffset,
3317 GLsizei width, GLsizei height, GLsizei depth,
3318 GLenum format, GLsizei imageSize)
3319 {
3320 GLint expectedSize, maxLevels = 0, maxTextureSize;
3321 (void) zoffset;
3322
3323 if (dimensions == 1) {
3324 /* 1D compressed textures not allowed */
3325 return GL_INVALID_ENUM;
3326 }
3327 else if (dimensions == 2) {
3328 if (target == GL_PROXY_TEXTURE_2D) {
3329 maxLevels = ctx->Const.MaxTextureLevels;
3330 }
3331 else if (target == GL_TEXTURE_2D) {
3332 maxLevels = ctx->Const.MaxTextureLevels;
3333 }
3334 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3335 if (!ctx->Extensions.ARB_texture_cube_map)
3336 return GL_INVALID_ENUM; /*target*/
3337 maxLevels = ctx->Const.MaxCubeTextureLevels;
3338 }
3339 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3340 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3341 if (!ctx->Extensions.ARB_texture_cube_map)
3342 return GL_INVALID_ENUM; /*target*/
3343 maxLevels = ctx->Const.MaxCubeTextureLevels;
3344 }
3345 else {