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4a419fde261ec8f06581b4c6def1f90bbf15dd3d
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.1
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file teximage.c
28 * Texture image-related functions.
29 */
30
31
32 #include "glheader.h"
33 #include "bufferobj.h"
34 #include "context.h"
35 #if FEATURE_convolve
36 #include "convolve.h"
37 #endif
38 #include "fbobject.h"
39 #include "framebuffer.h"
40 #include "image.h"
41 #include "imports.h"
42 #include "macros.h"
43 #include "state.h"
44 #include "texcompress.h"
45 #include "texformat.h"
46 #include "teximage.h"
47 #include "texstate.h"
48 #include "texstore.h"
49 #include "mtypes.h"
50
51
52 /**
53 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
54 * elsewhere.
55 */
56 void *
57 _mesa_alloc_texmemory(GLsizei bytes)
58 {
59 return _mesa_align_malloc(bytes, 512);
60 }
61
62
63 /**
64 * Free texture memory allocated with _mesa_alloc_texmemory()
65 */
66 void
67 _mesa_free_texmemory(void *m)
68 {
69 _mesa_align_free(m);
70 }
71
72
73
74
75 #if 0
76 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
77 {
78 #if CHAN_TYPE != GL_UNSIGNED_BYTE
79 _mesa_problem(NULL, "PrintTexture not supported");
80 #else
81 GLuint i, j, c;
82 const GLubyte *data = (const GLubyte *) img->Data;
83
84 if (!data) {
85 _mesa_printf("No texture data\n");
86 return;
87 }
88
89 switch (img->Format) {
90 case GL_ALPHA:
91 case GL_LUMINANCE:
92 case GL_INTENSITY:
93 case GL_COLOR_INDEX:
94 c = 1;
95 break;
96 case GL_LUMINANCE_ALPHA:
97 c = 2;
98 break;
99 case GL_RGB:
100 c = 3;
101 break;
102 case GL_RGBA:
103 c = 4;
104 break;
105 default:
106 _mesa_problem(NULL, "error in PrintTexture\n");
107 return;
108 }
109
110 for (i = 0; i < img->Height; i++) {
111 for (j = 0; j < img->Width; j++) {
112 if (c==1)
113 _mesa_printf("%02x ", data[0]);
114 else if (c==2)
115 _mesa_printf("%02x%02x ", data[0], data[1]);
116 else if (c==3)
117 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
118 else if (c==4)
119 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
120 data += (img->RowStride - img->Width) * c;
121 }
122 /* XXX use img->ImageStride here */
123 _mesa_printf("\n");
124 }
125 #endif
126 }
127 #endif
128
129
130 /*
131 * Compute floor(log_base_2(n)).
132 * If n < 0 return -1.
133 */
134 static int
135 logbase2( int n )
136 {
137 GLint i = 1;
138 GLint log2 = 0;
139
140 if (n < 0)
141 return -1;
142
143 if (n == 0)
144 return 0;
145
146 while ( n > i ) {
147 i *= 2;
148 log2++;
149 }
150 if (i != n) {
151 return log2 - 1;
152 }
153 else {
154 return log2;
155 }
156 }
157
158
159
160 /**
161 * Return the simple base format for a given internal texture format.
162 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
163 *
164 * \param ctx GL context.
165 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
166 *
167 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
168 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
169 *
170 * This is the format which is used during texture application (i.e. the
171 * texture format and env mode determine the arithmetic used.
172 */
173 GLint
174 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
175 {
176 switch (internalFormat) {
177 case GL_ALPHA:
178 case GL_ALPHA4:
179 case GL_ALPHA8:
180 case GL_ALPHA12:
181 case GL_ALPHA16:
182 return GL_ALPHA;
183 case 1:
184 case GL_LUMINANCE:
185 case GL_LUMINANCE4:
186 case GL_LUMINANCE8:
187 case GL_LUMINANCE12:
188 case GL_LUMINANCE16:
189 return GL_LUMINANCE;
190 case 2:
191 case GL_LUMINANCE_ALPHA:
192 case GL_LUMINANCE4_ALPHA4:
193 case GL_LUMINANCE6_ALPHA2:
194 case GL_LUMINANCE8_ALPHA8:
195 case GL_LUMINANCE12_ALPHA4:
196 case GL_LUMINANCE12_ALPHA12:
197 case GL_LUMINANCE16_ALPHA16:
198 return GL_LUMINANCE_ALPHA;
199 case GL_INTENSITY:
200 case GL_INTENSITY4:
201 case GL_INTENSITY8:
202 case GL_INTENSITY12:
203 case GL_INTENSITY16:
204 return GL_INTENSITY;
205 case 3:
206 case GL_RGB:
207 case GL_R3_G3_B2:
208 case GL_RGB4:
209 case GL_RGB5:
210 case GL_RGB8:
211 case GL_RGB10:
212 case GL_RGB12:
213 case GL_RGB16:
214 return GL_RGB;
215 case 4:
216 case GL_RGBA:
217 case GL_RGBA2:
218 case GL_RGBA4:
219 case GL_RGB5_A1:
220 case GL_RGBA8:
221 case GL_RGB10_A2:
222 case GL_RGBA12:
223 case GL_RGBA16:
224 return GL_RGBA;
225 default:
226 ; /* fallthrough */
227 }
228
229 if (ctx->Extensions.EXT_paletted_texture) {
230 switch (internalFormat) {
231 case GL_COLOR_INDEX:
232 case GL_COLOR_INDEX1_EXT:
233 case GL_COLOR_INDEX2_EXT:
234 case GL_COLOR_INDEX4_EXT:
235 case GL_COLOR_INDEX8_EXT:
236 case GL_COLOR_INDEX12_EXT:
237 case GL_COLOR_INDEX16_EXT:
238 return GL_COLOR_INDEX;
239 default:
240 ; /* fallthrough */
241 }
242 }
243
244 if (ctx->Extensions.ARB_depth_texture) {
245 switch (internalFormat) {
246 case GL_DEPTH_COMPONENT:
247 case GL_DEPTH_COMPONENT16:
248 case GL_DEPTH_COMPONENT24:
249 case GL_DEPTH_COMPONENT32:
250 return GL_DEPTH_COMPONENT;
251 default:
252 ; /* fallthrough */
253 }
254 }
255
256 if (ctx->Extensions.ARB_texture_compression) {
257 switch (internalFormat) {
258 case GL_COMPRESSED_ALPHA:
259 return GL_ALPHA;
260 case GL_COMPRESSED_LUMINANCE:
261 return GL_LUMINANCE;
262 case GL_COMPRESSED_LUMINANCE_ALPHA:
263 return GL_LUMINANCE_ALPHA;
264 case GL_COMPRESSED_INTENSITY:
265 return GL_INTENSITY;
266 case GL_COMPRESSED_RGB:
267 return GL_RGB;
268 case GL_COMPRESSED_RGBA:
269 return GL_RGBA;
270 default:
271 ; /* fallthrough */
272 }
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 */
392 static GLboolean
393 is_color_format(GLenum format)
394 {
395 switch (format) {
396 case GL_RED:
397 case GL_GREEN:
398 case GL_BLUE:
399 case GL_ALPHA:
400 case GL_ALPHA4:
401 case GL_ALPHA8:
402 case GL_ALPHA12:
403 case GL_ALPHA16:
404 case 1:
405 case GL_LUMINANCE:
406 case GL_LUMINANCE4:
407 case GL_LUMINANCE8:
408 case GL_LUMINANCE12:
409 case GL_LUMINANCE16:
410 case 2:
411 case GL_LUMINANCE_ALPHA:
412 case GL_LUMINANCE4_ALPHA4:
413 case GL_LUMINANCE6_ALPHA2:
414 case GL_LUMINANCE8_ALPHA8:
415 case GL_LUMINANCE12_ALPHA4:
416 case GL_LUMINANCE12_ALPHA12:
417 case GL_LUMINANCE16_ALPHA16:
418 case GL_INTENSITY:
419 case GL_INTENSITY4:
420 case GL_INTENSITY8:
421 case GL_INTENSITY12:
422 case GL_INTENSITY16:
423 case 3:
424 case GL_RGB:
425 case GL_BGR:
426 case GL_R3_G3_B2:
427 case GL_RGB4:
428 case GL_RGB5:
429 case GL_RGB8:
430 case GL_RGB10:
431 case GL_RGB12:
432 case GL_RGB16:
433 case 4:
434 case GL_ABGR_EXT:
435 case GL_RGBA:
436 case GL_BGRA:
437 case GL_RGBA2:
438 case GL_RGBA4:
439 case GL_RGB5_A1:
440 case GL_RGBA8:
441 case GL_RGB10_A2:
442 case GL_RGBA12:
443 case GL_RGBA16:
444 /* float texture formats */
445 case GL_ALPHA16F_ARB:
446 case GL_ALPHA32F_ARB:
447 case GL_LUMINANCE16F_ARB:
448 case GL_LUMINANCE32F_ARB:
449 case GL_LUMINANCE_ALPHA16F_ARB:
450 case GL_LUMINANCE_ALPHA32F_ARB:
451 case GL_INTENSITY16F_ARB:
452 case GL_INTENSITY32F_ARB:
453 case GL_RGB16F_ARB:
454 case GL_RGB32F_ARB:
455 case GL_RGBA16F_ARB:
456 case GL_RGBA32F_ARB:
457 /* compressed formats */
458 case GL_COMPRESSED_ALPHA:
459 case GL_COMPRESSED_LUMINANCE:
460 case GL_COMPRESSED_LUMINANCE_ALPHA:
461 case GL_COMPRESSED_INTENSITY:
462 case GL_COMPRESSED_RGB:
463 case GL_COMPRESSED_RGBA:
464 case GL_RGB_S3TC:
465 case GL_RGB4_S3TC:
466 case GL_RGBA_S3TC:
467 case GL_RGBA4_S3TC:
468 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
469 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
471 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
472 case GL_COMPRESSED_RGB_FXT1_3DFX:
473 case GL_COMPRESSED_RGBA_FXT1_3DFX:
474 #if FEATURE_EXT_texture_sRGB
475 case GL_SRGB_EXT:
476 case GL_SRGB8_EXT:
477 case GL_SRGB_ALPHA_EXT:
478 case GL_SRGB8_ALPHA8_EXT:
479 case GL_SLUMINANCE_ALPHA_EXT:
480 case GL_SLUMINANCE8_ALPHA8_EXT:
481 case GL_SLUMINANCE_EXT:
482 case GL_SLUMINANCE8_EXT:
483 case GL_COMPRESSED_SRGB_EXT:
484 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
485 case GL_COMPRESSED_SRGB_ALPHA_EXT:
486 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
487 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
488 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
489 case GL_COMPRESSED_SLUMINANCE_EXT:
490 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
491 #endif /* FEATURE_EXT_texture_sRGB */
492 return GL_TRUE;
493 case GL_YCBCR_MESA: /* not considered to be RGB */
494 default:
495 return GL_FALSE;
496 }
497 }
498
499
500 /**
501 * Test if the given image format is a color index format.
502 */
503 static GLboolean
504 is_index_format(GLenum format)
505 {
506 switch (format) {
507 case GL_COLOR_INDEX:
508 case GL_COLOR_INDEX1_EXT:
509 case GL_COLOR_INDEX2_EXT:
510 case GL_COLOR_INDEX4_EXT:
511 case GL_COLOR_INDEX8_EXT:
512 case GL_COLOR_INDEX12_EXT:
513 case GL_COLOR_INDEX16_EXT:
514 return GL_TRUE;
515 default:
516 return GL_FALSE;
517 }
518 }
519
520
521 /**
522 * Test if the given image format is a depth component format.
523 */
524 static GLboolean
525 is_depth_format(GLenum format)
526 {
527 switch (format) {
528 case GL_DEPTH_COMPONENT16:
529 case GL_DEPTH_COMPONENT24:
530 case GL_DEPTH_COMPONENT32:
531 case GL_DEPTH_COMPONENT:
532 return GL_TRUE;
533 default:
534 return GL_FALSE;
535 }
536 }
537
538
539 /**
540 * Test if the given image format is a YCbCr format.
541 */
542 static GLboolean
543 is_ycbcr_format(GLenum format)
544 {
545 switch (format) {
546 case GL_YCBCR_MESA:
547 return GL_TRUE;
548 default:
549 return GL_FALSE;
550 }
551 }
552
553
554 /**
555 * Test if the given image format is a Depth/Stencil format.
556 */
557 static GLboolean
558 is_depthstencil_format(GLenum format)
559 {
560 switch (format) {
561 case GL_DEPTH24_STENCIL8_EXT:
562 case GL_DEPTH_STENCIL_EXT:
563 return GL_TRUE;
564 default:
565 return GL_FALSE;
566 }
567 }
568
569
570
571 /**
572 * Test if it is a supported compressed format.
573 *
574 * \param internalFormat the internal format token provided by the user.
575 *
576 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
577 * GL_FALSE otherwise.
578 *
579 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
580 * are supported.
581 */
582 static GLboolean
583 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
584 {
585 GLint supported[100]; /* 100 should be plenty */
586 GLuint i, n;
587
588 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
589 ASSERT(n < 100);
590 for (i = 0; i < n; i++) {
591 if ((GLint) internalFormat == supported[i]) {
592 return GL_TRUE;
593 }
594 }
595 return GL_FALSE;
596 }
597
598
599 /**
600 * For cube map faces, return a face index in [0,5].
601 * For other targets return 0;
602 */
603 GLuint
604 _mesa_tex_target_to_face(GLenum target)
605 {
606 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
607 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
608 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
609 else
610 return 0;
611 }
612
613
614
615 /**
616 * Store a gl_texture_image pointer in a gl_texture_object structure
617 * according to the target and level parameters.
618 *
619 * \param tObj texture object.
620 * \param target texture target.
621 * \param level image level.
622 * \param texImage texture image.
623 *
624 * This was basically prompted by the introduction of cube maps.
625 */
626 void
627 _mesa_set_tex_image(struct gl_texture_object *tObj,
628 GLenum target, GLint level,
629 struct gl_texture_image *texImage)
630 {
631 ASSERT(tObj);
632 ASSERT(texImage);
633 /* XXX simplify this with _mesa_tex_target_to_face() */
634 switch (target) {
635 case GL_TEXTURE_1D:
636 case GL_TEXTURE_2D:
637 case GL_TEXTURE_3D:
638 case GL_TEXTURE_1D_ARRAY_EXT:
639 case GL_TEXTURE_2D_ARRAY_EXT:
640 tObj->Image[0][level] = texImage;
641 break;
642 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
643 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
644 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
645 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
646 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
647 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
648 {
649 GLuint face = ((GLuint) target -
650 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
651 tObj->Image[face][level] = texImage;
652 }
653 break;
654 case GL_TEXTURE_RECTANGLE_NV:
655 ASSERT(level == 0);
656 tObj->Image[0][level] = texImage;
657 break;
658 default:
659 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
660 return;
661 }
662 /* Set the 'back' pointer */
663 texImage->TexObject = tObj;
664 }
665
666
667 /**
668 * Allocate a texture image structure.
669 *
670 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
671 * driver.
672 *
673 * \return a pointer to gl_texture_image struct with all fields initialized to
674 * zero.
675 */
676 struct gl_texture_image *
677 _mesa_new_texture_image( GLcontext *ctx )
678 {
679 (void) ctx;
680 return CALLOC_STRUCT(gl_texture_image);
681 }
682
683
684 /**
685 * Free texture image data.
686 * This function is a fallback called via ctx->Driver.FreeTexImageData().
687 *
688 * \param teximage texture image.
689 *
690 * Free the texture image data if it's not marked as client data.
691 */
692 void
693 _mesa_free_texture_image_data(GLcontext *ctx,
694 struct gl_texture_image *texImage)
695 {
696 (void) ctx;
697
698 if (texImage->Data && !texImage->IsClientData) {
699 /* free the old texture data */
700 _mesa_free_texmemory(texImage->Data);
701 }
702
703 texImage->Data = NULL;
704 }
705
706
707 /**
708 * Free texture image.
709 *
710 * \param teximage texture image.
711 *
712 * Free the texture image structure and the associated image data.
713 */
714 void
715 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
716 {
717 /* Free texImage->Data and/or any other driver-specific texture
718 * image storage.
719 */
720 ASSERT(ctx->Driver.FreeTexImageData);
721 ctx->Driver.FreeTexImageData( ctx, texImage );
722
723 ASSERT(texImage->Data == NULL);
724 if (texImage->ImageOffsets)
725 _mesa_free(texImage->ImageOffsets);
726 _mesa_free(texImage);
727 }
728
729
730 /**
731 * Test if a target is a proxy target.
732 *
733 * \param target texture target.
734 *
735 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
736 */
737 GLboolean
738 _mesa_is_proxy_texture(GLenum target)
739 {
740 return (target == GL_PROXY_TEXTURE_1D ||
741 target == GL_PROXY_TEXTURE_2D ||
742 target == GL_PROXY_TEXTURE_3D ||
743 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
744 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
745 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
746 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
747 }
748
749
750 /**
751 * Get the texture object that corresponds to the target of the given texture unit.
752 *
753 * \param ctx GL context.
754 * \param texUnit texture unit.
755 * \param target texture target.
756 *
757 * \return pointer to the texture object on success, or NULL on failure.
758 *
759 * \sa gl_texture_unit.
760 */
761 struct gl_texture_object *
762 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
763 GLenum target)
764 {
765 switch (target) {
766 case GL_TEXTURE_1D:
767 return texUnit->Current1D;
768 case GL_PROXY_TEXTURE_1D:
769 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
770 case GL_TEXTURE_2D:
771 return texUnit->Current2D;
772 case GL_PROXY_TEXTURE_2D:
773 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
774 case GL_TEXTURE_3D:
775 return texUnit->Current3D;
776 case GL_PROXY_TEXTURE_3D:
777 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
778 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
779 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
780 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
781 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
782 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
783 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
784 case GL_TEXTURE_CUBE_MAP_ARB:
785 return ctx->Extensions.ARB_texture_cube_map
786 ? texUnit->CurrentCubeMap : NULL;
787 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
788 return ctx->Extensions.ARB_texture_cube_map
789 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
790 case GL_TEXTURE_RECTANGLE_NV:
791 return ctx->Extensions.NV_texture_rectangle
792 ? texUnit->CurrentRect : NULL;
793 case GL_PROXY_TEXTURE_RECTANGLE_NV:
794 return ctx->Extensions.NV_texture_rectangle
795 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
796 case GL_TEXTURE_1D_ARRAY_EXT:
797 return ctx->Extensions.MESA_texture_array
798 ? texUnit->Current1DArray : NULL;
799 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
800 return ctx->Extensions.MESA_texture_array
801 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
802 case GL_TEXTURE_2D_ARRAY_EXT:
803 return ctx->Extensions.MESA_texture_array
804 ? texUnit->Current2DArray : NULL;
805 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
806 return ctx->Extensions.MESA_texture_array
807 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
808 default:
809 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
810 return NULL;
811 }
812 }
813
814
815 /**
816 * Get the texture image struct which corresponds to target and level
817 * of the given texture unit.
818 *
819 * \param ctx GL context.
820 * \param texUnit texture unit.
821 * \param target texture target.
822 * \param level image level.
823 *
824 * \return pointer to the texture image structure on success, or NULL on failure.
825 *
826 * \sa gl_texture_unit.
827 */
828 struct gl_texture_image *
829 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
830 GLenum target, GLint level)
831 {
832 ASSERT(texObj);
833
834 if (level < 0 || level >= MAX_TEXTURE_LEVELS)
835 return NULL;
836
837 /* XXX simplify this with _mesa_tex_target_to_face() */
838 switch (target) {
839 case GL_TEXTURE_1D:
840 case GL_PROXY_TEXTURE_1D:
841 case GL_TEXTURE_2D:
842 case GL_PROXY_TEXTURE_2D:
843 case GL_TEXTURE_3D:
844 case GL_PROXY_TEXTURE_3D:
845 return texObj->Image[0][level];
846
847 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
848 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
849 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
850 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
851 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
852 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
853 if (ctx->Extensions.ARB_texture_cube_map) {
854 GLuint face = ((GLuint) target -
855 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
856 return texObj->Image[face][level];
857 }
858 else
859 return NULL;
860
861 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
862 if (ctx->Extensions.ARB_texture_cube_map)
863 return texObj->Image[0][level];
864 else
865 return NULL;
866
867 case GL_TEXTURE_RECTANGLE_NV:
868 case GL_PROXY_TEXTURE_RECTANGLE_NV:
869 if (ctx->Extensions.NV_texture_rectangle && level == 0)
870 return texObj->Image[0][level];
871 else
872 return NULL;
873
874 case GL_TEXTURE_1D_ARRAY_EXT:
875 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
876 case GL_TEXTURE_2D_ARRAY_EXT:
877 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
878 return (ctx->Extensions.MESA_texture_array)
879 ? texObj->Image[0][level] : NULL;
880
881 default:
882 return NULL;
883 }
884 }
885
886
887 /**
888 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
889 * it and install it. Only return NULL if passed a bad parameter or run
890 * out of memory.
891 */
892 struct gl_texture_image *
893 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
894 GLenum target, GLint level)
895 {
896 struct gl_texture_image *texImage;
897
898 if (!texObj)
899 return NULL;
900
901 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
902 if (!texImage) {
903 texImage = ctx->Driver.NewTextureImage(ctx);
904 if (!texImage) {
905 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
906 return NULL;
907 }
908
909 _mesa_set_tex_image(texObj, target, level, texImage);
910 }
911
912 return texImage;
913 }
914
915
916 /**
917 * Return pointer to the specified proxy texture image.
918 * Note that proxy textures are per-context, not per-texture unit.
919 * \return pointer to texture image or NULL if invalid target, invalid
920 * level, or out of memory.
921 */
922 struct gl_texture_image *
923 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
924 {
925 struct gl_texture_image *texImage;
926
927 if (level < 0 )
928 return NULL;
929
930 switch (target) {
931 case GL_PROXY_TEXTURE_1D:
932 if (level >= ctx->Const.MaxTextureLevels)
933 return NULL;
934 texImage = ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]->Image[0][level];
935 if (!texImage) {
936 texImage = ctx->Driver.NewTextureImage(ctx);
937 if (!texImage) {
938 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
939 return NULL;
940 }
941 ctx->Texture.ProxyTex[TEXTURE_1D_INDEX]->Image[0][level] = texImage;
942 /* Set the 'back' pointer */
943 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
944 }
945 return texImage;
946 case GL_PROXY_TEXTURE_2D:
947 if (level >= ctx->Const.MaxTextureLevels)
948 return NULL;
949 texImage = ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]->Image[0][level];
950 if (!texImage) {
951 texImage = ctx->Driver.NewTextureImage(ctx);
952 if (!texImage) {
953 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
954 return NULL;
955 }
956 ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]->Image[0][level] = texImage;
957 /* Set the 'back' pointer */
958 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
959 }
960 return texImage;
961 case GL_PROXY_TEXTURE_3D:
962 if (level >= ctx->Const.Max3DTextureLevels)
963 return NULL;
964 texImage = ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]->Image[0][level];
965 if (!texImage) {
966 texImage = ctx->Driver.NewTextureImage(ctx);
967 if (!texImage) {
968 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
969 return NULL;
970 }
971 ctx->Texture.ProxyTex[TEXTURE_3D_INDEX]->Image[0][level] = texImage;
972 /* Set the 'back' pointer */
973 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
974 }
975 return texImage;
976 case GL_PROXY_TEXTURE_CUBE_MAP:
977 if (level >= ctx->Const.MaxCubeTextureLevels)
978 return NULL;
979 texImage = ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX]->Image[0][level];
980 if (!texImage) {
981 texImage = ctx->Driver.NewTextureImage(ctx);
982 if (!texImage) {
983 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
984 return NULL;
985 }
986 ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX]->Image[0][level] = texImage;
987 /* Set the 'back' pointer */
988 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX];
989 }
990 return texImage;
991 case GL_PROXY_TEXTURE_RECTANGLE_NV:
992 if (level > 0)
993 return NULL;
994 texImage = ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX]->Image[0][level];
995 if (!texImage) {
996 texImage = ctx->Driver.NewTextureImage(ctx);
997 if (!texImage) {
998 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
999 return NULL;
1000 }
1001 ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX]->Image[0][level] = texImage;
1002 /* Set the 'back' pointer */
1003 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX];
1004 }
1005 return texImage;
1006 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1007 if (level >= ctx->Const.MaxTextureLevels)
1008 return NULL;
1009 texImage = ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX]->Image[0][level];
1010 if (!texImage) {
1011 texImage = ctx->Driver.NewTextureImage(ctx);
1012 if (!texImage) {
1013 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1014 return NULL;
1015 }
1016 ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX]->Image[0][level] = texImage;
1017 /* Set the 'back' pointer */
1018 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX];
1019 }
1020 return texImage;
1021 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1022 if (level >= ctx->Const.MaxTextureLevels)
1023 return NULL;
1024 texImage = ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX]->Image[0][level];
1025 if (!texImage) {
1026 texImage = ctx->Driver.NewTextureImage(ctx);
1027 if (!texImage) {
1028 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1029 return NULL;
1030 }
1031 ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX]->Image[0][level] = texImage;
1032 /* Set the 'back' pointer */
1033 texImage->TexObject = ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX];
1034 }
1035 return texImage;
1036 default:
1037 return NULL;
1038 }
1039 }
1040
1041
1042 /**
1043 * Get the maximum number of allowed mipmap levels.
1044 *
1045 * \param ctx GL context.
1046 * \param target texture target.
1047 *
1048 * \return the maximum number of allowed mipmap levels for the given
1049 * texture target, or zero if passed a bad target.
1050 *
1051 * \sa gl_constants.
1052 */
1053 GLint
1054 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
1055 {
1056 switch (target) {
1057 case GL_TEXTURE_1D:
1058 case GL_PROXY_TEXTURE_1D:
1059 case GL_TEXTURE_2D:
1060 case GL_PROXY_TEXTURE_2D:
1061 case GL_TEXTURE_1D_ARRAY_EXT:
1062 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1063 case GL_TEXTURE_2D_ARRAY_EXT:
1064 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1065 return ctx->Const.MaxTextureLevels;
1066 case GL_TEXTURE_3D:
1067 case GL_PROXY_TEXTURE_3D:
1068 return ctx->Const.Max3DTextureLevels;
1069 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
1070 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
1071 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
1072 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
1073 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
1074 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1075 case GL_TEXTURE_CUBE_MAP_ARB:
1076 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1077 return ctx->Const.MaxCubeTextureLevels;
1078 case GL_TEXTURE_RECTANGLE_NV:
1079 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1080 return 1;
1081 default:
1082 return 0; /* bad target */
1083 }
1084 }
1085
1086
1087
1088 #if 000 /* not used anymore */
1089 /*
1090 * glTexImage[123]D can accept a NULL image pointer. In this case we
1091 * create a texture image with unspecified image contents per the OpenGL
1092 * spec.
1093 */
1094 static GLubyte *
1095 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1096 {
1097 const GLint components = _mesa_components_in_format(format);
1098 const GLint numPixels = width * height * depth;
1099 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1100
1101 #ifdef DEBUG
1102 /*
1103 * Let's see if anyone finds this. If glTexImage2D() is called with
1104 * a NULL image pointer then load the texture image with something
1105 * interesting instead of leaving it indeterminate.
1106 */
1107 if (data) {
1108 static const char message[8][32] = {
1109 " X X XXXXX XXX X ",
1110 " XX XX X X X X X ",
1111 " X X X X X X X ",
1112 " X X XXXX XXX XXXXX ",
1113 " X X X X X X ",
1114 " X X X X X X X ",
1115 " X X XXXXX XXX X X ",
1116 " "
1117 };
1118
1119 GLubyte *imgPtr = data;
1120 GLint h, i, j, k;
1121 for (h = 0; h < depth; h++) {
1122 for (i = 0; i < height; i++) {
1123 GLint srcRow = 7 - (i % 8);
1124 for (j = 0; j < width; j++) {
1125 GLint srcCol = j % 32;
1126 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1127 for (k = 0; k < components; k++) {
1128 *imgPtr++ = texel;
1129 }
1130 }
1131 }
1132 }
1133 }
1134 #endif
1135
1136 return data;
1137 }
1138 #endif
1139
1140
1141
1142 /**
1143 * Reset the fields of a gl_texture_image struct to zero.
1144 *
1145 * \param img texture image structure.
1146 *
1147 * This is called when a proxy texture test fails, we set all the
1148 * image members (except DriverData) to zero.
1149 * It's also used in glTexImage[123]D as a safeguard to be sure all
1150 * required fields get initialized properly by the Driver.TexImage[123]D
1151 * functions.
1152 */
1153 static void
1154 clear_teximage_fields(struct gl_texture_image *img)
1155 {
1156 ASSERT(img);
1157 img->_BaseFormat = 0;
1158 img->InternalFormat = 0;
1159 img->Border = 0;
1160 img->Width = 0;
1161 img->Height = 0;
1162 img->Depth = 0;
1163 img->RowStride = 0;
1164 if (img->ImageOffsets) {
1165 _mesa_free(img->ImageOffsets);
1166 img->ImageOffsets = NULL;
1167 }
1168 img->Width2 = 0;
1169 img->Height2 = 0;
1170 img->Depth2 = 0;
1171 img->WidthLog2 = 0;
1172 img->HeightLog2 = 0;
1173 img->DepthLog2 = 0;
1174 img->Data = NULL;
1175 img->TexFormat = &_mesa_null_texformat;
1176 img->FetchTexelc = NULL;
1177 img->FetchTexelf = NULL;
1178 img->IsCompressed = 0;
1179 img->CompressedSize = 0;
1180 }
1181
1182
1183 /**
1184 * Initialize basic fields of the gl_texture_image struct.
1185 *
1186 * \param ctx GL context.
1187 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1188 * \param img texture image structure to be initialized.
1189 * \param width image width.
1190 * \param height image height.
1191 * \param depth image depth.
1192 * \param border image border.
1193 * \param internalFormat internal format.
1194 *
1195 * Fills in the fields of \p img with the given information.
1196 * Note: width, height and depth include the border.
1197 */
1198 void
1199 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1200 struct gl_texture_image *img,
1201 GLsizei width, GLsizei height, GLsizei depth,
1202 GLint border, GLenum internalFormat)
1203 {
1204 GLint i;
1205
1206 ASSERT(img);
1207 ASSERT(width >= 0);
1208 ASSERT(height >= 0);
1209 ASSERT(depth >= 0);
1210
1211 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1212 ASSERT(img->_BaseFormat > 0);
1213 img->InternalFormat = internalFormat;
1214 img->Border = border;
1215 img->Width = width;
1216 img->Height = height;
1217 img->Depth = depth;
1218 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1219 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1220 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1221 img->WidthLog2 = logbase2(img->Width2);
1222 if (height == 1) /* 1-D texture */
1223 img->HeightLog2 = 0;
1224 else
1225 img->HeightLog2 = logbase2(img->Height2);
1226 if (depth == 1) /* 2-D texture */
1227 img->DepthLog2 = 0;
1228 else
1229 img->DepthLog2 = logbase2(img->Depth2);
1230 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1231 img->IsCompressed = GL_FALSE;
1232 img->CompressedSize = 0;
1233
1234 if ((width == 1 || _mesa_bitcount(img->Width2) == 1) &&
1235 (height == 1 || _mesa_bitcount(img->Height2) == 1) &&
1236 (depth == 1 || _mesa_bitcount(img->Depth2) == 1))
1237 img->_IsPowerOfTwo = GL_TRUE;
1238 else
1239 img->_IsPowerOfTwo = GL_FALSE;
1240
1241 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1242 img->RowStride = width;
1243 /* Allocate the ImageOffsets array and initialize to typical values.
1244 * We allocate the array for 1D/2D textures too in order to avoid special-
1245 * case code in the texstore routines.
1246 */
1247 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
1248 for (i = 0; i < depth; i++) {
1249 img->ImageOffsets[i] = i * width * height;
1250 }
1251
1252 /* Compute Width/Height/DepthScale for mipmap lod computation */
1253 if (target == GL_TEXTURE_RECTANGLE_NV) {
1254 /* scale = 1.0 since texture coords directly map to texels */
1255 img->WidthScale = 1.0;
1256 img->HeightScale = 1.0;
1257 img->DepthScale = 1.0;
1258 }
1259 else {
1260 img->WidthScale = (GLfloat) img->Width;
1261 img->HeightScale = (GLfloat) img->Height;
1262 img->DepthScale = (GLfloat) img->Depth;
1263 }
1264 }
1265
1266
1267 /**
1268 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1269 * level, width, height and depth against the ctx->Const limits for textures.
1270 *
1271 * A hardware driver might override this function if, for example, the
1272 * max 3D texture size is 512x512x64 (i.e. not a cube).
1273 *
1274 * Note that width, height, depth == 0 is not an error. However, a
1275 * texture with zero width/height/depth will be considered "incomplete"
1276 * and texturing will effectively be disabled.
1277 *
1278 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1279 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1280 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1281 * \param level as passed to glTexImage
1282 * \param internalFormat as passed to glTexImage
1283 * \param format as passed to glTexImage
1284 * \param type as passed to glTexImage
1285 * \param width as passed to glTexImage
1286 * \param height as passed to glTexImage
1287 * \param depth as passed to glTexImage
1288 * \param border as passed to glTexImage
1289 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1290 */
1291 GLboolean
1292 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1293 GLint internalFormat, GLenum format, GLenum type,
1294 GLint width, GLint height, GLint depth, GLint border)
1295 {
1296 GLint maxSize;
1297
1298 (void) internalFormat;
1299 (void) format;
1300 (void) type;
1301
1302 switch (target) {
1303 case GL_PROXY_TEXTURE_1D:
1304 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1305 if (width < 2 * border || width > 2 + maxSize ||
1306 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1307 width >0 && _mesa_bitcount(width - 2 * border) != 1) ||
1308 level >= ctx->Const.MaxTextureLevels) {
1309 /* bad width or level */
1310 return GL_FALSE;
1311 }
1312 return GL_TRUE;
1313 case GL_PROXY_TEXTURE_2D:
1314 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1315 if (width < 2 * border || width > 2 + maxSize ||
1316 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1317 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1318 height < 2 * border || height > 2 + maxSize ||
1319 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1320 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1321 level >= ctx->Const.MaxTextureLevels) {
1322 /* bad width or height or level */
1323 return GL_FALSE;
1324 }
1325 return GL_TRUE;
1326 case GL_PROXY_TEXTURE_3D:
1327 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1328 if (width < 2 * border || width > 2 + maxSize ||
1329 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1330 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1331 height < 2 * border || height > 2 + maxSize ||
1332 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1333 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1334 depth < 2 * border || depth > 2 + maxSize ||
1335 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1336 depth > 0 && _mesa_bitcount(depth - 2 * border) != 1) ||
1337 level >= ctx->Const.Max3DTextureLevels) {
1338 /* bad width or height or depth or level */
1339 return GL_FALSE;
1340 }
1341 return GL_TRUE;
1342 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1343 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1344 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1345 level != 0) {
1346 /* bad width or height or level */
1347 return GL_FALSE;
1348 }
1349 return GL_TRUE;
1350 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1351 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1352 if (width < 2 * border || width > 2 + maxSize ||
1353 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1354 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1355 height < 2 * border || height > 2 + maxSize ||
1356 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1357 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1358 level >= ctx->Const.MaxCubeTextureLevels) {
1359 /* bad width or height */
1360 return GL_FALSE;
1361 }
1362 return GL_TRUE;
1363 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1364 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1365 if (width < 2 * border || width > 2 + maxSize ||
1366 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1367 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1368 level >= ctx->Const.MaxTextureLevels) {
1369 /* bad width or level */
1370 return GL_FALSE;
1371 }
1372
1373 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1374 return GL_FALSE;
1375 }
1376 return GL_TRUE;
1377 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1378 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1379 if (width < 2 * border || width > 2 + maxSize ||
1380 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1381 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1382 height < 2 * border || height > 2 + maxSize ||
1383 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1384 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1385 level >= ctx->Const.MaxTextureLevels) {
1386 /* bad width or height or level */
1387 return GL_FALSE;
1388 }
1389 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1390 return GL_FALSE;
1391 }
1392 return GL_TRUE;
1393 default:
1394 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1395 return GL_FALSE;
1396 }
1397 }
1398
1399
1400 /**
1401 * Helper function to determine whether a target supports compressed textures
1402 */
1403 static GLboolean
1404 target_can_be_compressed(GLcontext *ctx, GLenum target)
1405 {
1406 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1407 || ((ctx->Extensions.ARB_texture_cube_map &&
1408 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1409 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1410 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1411 || ((ctx->Extensions.MESA_texture_array &&
1412 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1413 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1414 }
1415
1416
1417 /**
1418 * Test the glTexImage[123]D() parameters for errors.
1419 *
1420 * \param ctx GL context.
1421 * \param target texture target given by the user.
1422 * \param level image level given by the user.
1423 * \param internalFormat internal format given by the user.
1424 * \param format pixel data format given by the user.
1425 * \param type pixel data type given by the user.
1426 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1427 * \param width image width given by the user.
1428 * \param height image height given by the user.
1429 * \param depth image depth given by the user.
1430 * \param border image border given by the user.
1431 *
1432 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1433 *
1434 * Verifies each of the parameters against the constants specified in
1435 * __GLcontextRec::Const and the supported extensions, and according to the
1436 * OpenGL specification.
1437 */
1438 static GLboolean
1439 texture_error_check( GLcontext *ctx, GLenum target,
1440 GLint level, GLint internalFormat,
1441 GLenum format, GLenum type,
1442 GLuint dimensions,
1443 GLint width, GLint height,
1444 GLint depth, GLint border )
1445 {
1446 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1447 GLboolean sizeOK = GL_TRUE;
1448 GLboolean colorFormat, indexFormat;
1449 GLenum proxy_target;
1450
1451 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1452 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1453 if (!isProxy) {
1454 _mesa_error(ctx, GL_INVALID_VALUE,
1455 "glTexImage%dD(level=%d)", dimensions, level);
1456 }
1457 return GL_TRUE;
1458 }
1459
1460 /* Check border */
1461 if (border < 0 || border > 1 ||
1462 ((target == GL_TEXTURE_RECTANGLE_NV ||
1463 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1464 if (!isProxy) {
1465 _mesa_error(ctx, GL_INVALID_VALUE,
1466 "glTexImage%dD(border=%d)", dimensions, border);
1467 }
1468 return GL_TRUE;
1469 }
1470
1471 if (width < 0 || height < 0 || depth < 0) {
1472 if (!isProxy) {
1473 _mesa_error(ctx, GL_INVALID_VALUE,
1474 "glTexImage%dD(width, height or depth < 0)", dimensions);
1475 }
1476 return GL_TRUE;
1477 }
1478
1479 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1480 * level, width, height and depth.
1481 */
1482 if (dimensions == 1) {
1483 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1484 proxy_target = GL_PROXY_TEXTURE_1D;
1485 height = 1;
1486 depth = 1;
1487 }
1488 else {
1489 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1490 return GL_TRUE;
1491 }
1492 }
1493 else if (dimensions == 2) {
1494 depth = 1;
1495 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1496 proxy_target = GL_PROXY_TEXTURE_2D;
1497 }
1498 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1499 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1500 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1501 if (!ctx->Extensions.ARB_texture_cube_map) {
1502 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1503 return GL_TRUE;
1504 }
1505 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1506 sizeOK = (width == height);
1507 }
1508 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1509 target == GL_TEXTURE_RECTANGLE_NV) {
1510 if (!ctx->Extensions.NV_texture_rectangle) {
1511 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1512 return GL_TRUE;
1513 }
1514 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1515 }
1516 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1517 target == GL_TEXTURE_1D_ARRAY_EXT) {
1518 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1519 }
1520 else {
1521 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1522 return GL_TRUE;
1523 }
1524 }
1525 else if (dimensions == 3) {
1526 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1527 proxy_target = GL_PROXY_TEXTURE_3D;
1528 }
1529 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1530 target == GL_TEXTURE_2D_ARRAY_EXT) {
1531 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1532 }
1533 else {
1534 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1535 return GL_TRUE;
1536 }
1537 }
1538 else {
1539 _mesa_problem( ctx, "bad dims in texture_error_check" );
1540 return GL_TRUE;
1541 }
1542
1543 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1544 internalFormat, format,
1545 type, width, height,
1546 depth, border);
1547 if (!sizeOK) {
1548 if (!isProxy) {
1549 _mesa_error(ctx, GL_INVALID_VALUE,
1550 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1551 dimensions, level, width, height, depth);
1552 }
1553 return GL_TRUE;
1554 }
1555
1556 /* Check internalFormat */
1557 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1558 if (!isProxy) {
1559 _mesa_error(ctx, GL_INVALID_VALUE,
1560 "glTexImage%dD(internalFormat=0x%x)",
1561 dimensions, internalFormat);
1562 }
1563 return GL_TRUE;
1564 }
1565
1566 /* Check incoming image format and type */
1567 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1568 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1569 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1570 */
1571 if (!isProxy) {
1572 _mesa_error(ctx, GL_INVALID_OPERATION,
1573 "glTexImage%dD(format or type)", dimensions);
1574 }
1575 return GL_TRUE;
1576 }
1577
1578 /* make sure internal format and format basically agree */
1579 colorFormat = is_color_format(format);
1580 indexFormat = is_index_format(format);
1581 if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1582 (is_index_format(internalFormat) && !indexFormat) ||
1583 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1584 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1585 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
1586 if (!isProxy)
1587 _mesa_error(ctx, GL_INVALID_OPERATION,
1588 "glTexImage(internalFormat/format)");
1589 return GL_TRUE;
1590 }
1591
1592 /* additional checks for ycbcr textures */
1593 if (internalFormat == GL_YCBCR_MESA) {
1594 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1595 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1596 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1597 char message[100];
1598 _mesa_sprintf(message,
1599 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1600 _mesa_error(ctx, GL_INVALID_ENUM, message);
1601 return GL_TRUE; /* error */
1602 }
1603 if (target != GL_TEXTURE_2D &&
1604 target != GL_PROXY_TEXTURE_2D &&
1605 target != GL_TEXTURE_RECTANGLE_NV &&
1606 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1607 if (!isProxy)
1608 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1609 return GL_TRUE;
1610 }
1611 if (border != 0) {
1612 if (!isProxy) {
1613 char message[100];
1614 _mesa_sprintf(message,
1615 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1616 dimensions, border);
1617 _mesa_error(ctx, GL_INVALID_VALUE, message);
1618 }
1619 return GL_TRUE;
1620 }
1621 }
1622
1623 /* additional checks for depth textures */
1624 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1625 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1626 if (target != GL_TEXTURE_1D &&
1627 target != GL_PROXY_TEXTURE_1D &&
1628 target != GL_TEXTURE_2D &&
1629 target != GL_PROXY_TEXTURE_2D &&
1630 target != GL_TEXTURE_RECTANGLE_ARB &&
1631 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1632 if (!isProxy)
1633 _mesa_error(ctx, GL_INVALID_ENUM,
1634 "glTexImage(target/internalFormat)");
1635 return GL_TRUE;
1636 }
1637 }
1638
1639 /* additional checks for compressed textures */
1640 if (is_compressed_format(ctx, internalFormat)) {
1641 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1642 _mesa_error(ctx, GL_INVALID_ENUM,
1643 "glTexImage%d(target)", dimensions);
1644 return GL_TRUE;
1645 }
1646 if (border != 0) {
1647 if (!isProxy) {
1648 _mesa_error(ctx, GL_INVALID_OPERATION,
1649 "glTexImage%D(border!=0)", dimensions);
1650 }
1651 return GL_TRUE;
1652 }
1653 }
1654
1655 /* if we get here, the parameters are OK */
1656 return GL_FALSE;
1657 }
1658
1659
1660 /**
1661 * Test glTexSubImage[123]D() parameters for errors.
1662 *
1663 * \param ctx GL context.
1664 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1665 * \param target texture target given by the user.
1666 * \param level image level given by the user.
1667 * \param xoffset sub-image x offset given by the user.
1668 * \param yoffset sub-image y offset given by the user.
1669 * \param zoffset sub-image z offset given by the user.
1670 * \param format pixel data format given by the user.
1671 * \param type pixel data type given by the user.
1672 * \param width image width given by the user.
1673 * \param height image height given by the user.
1674 * \param depth image depth given by the user.
1675 *
1676 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1677 *
1678 * Verifies each of the parameters against the constants specified in
1679 * __GLcontextRec::Const and the supported extensions, and according to the
1680 * OpenGL specification.
1681 */
1682 static GLboolean
1683 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1684 GLenum target, GLint level,
1685 GLint xoffset, GLint yoffset, GLint zoffset,
1686 GLint width, GLint height, GLint depth,
1687 GLenum format, GLenum type )
1688 {
1689 /* Check target */
1690 if (dimensions == 1) {
1691 if (target != GL_TEXTURE_1D) {
1692 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1693 return GL_TRUE;
1694 }
1695 }
1696 else if (dimensions == 2) {
1697 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1698 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1699 if (!ctx->Extensions.ARB_texture_cube_map) {
1700 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1701 return GL_TRUE;
1702 }
1703 }
1704 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1705 if (!ctx->Extensions.NV_texture_rectangle) {
1706 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1707 return GL_TRUE;
1708 }
1709 }
1710 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1711 if (!ctx->Extensions.MESA_texture_array) {
1712 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1713 return GL_TRUE;
1714 }
1715 }
1716 else if (target != GL_TEXTURE_2D) {
1717 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1718 return GL_TRUE;
1719 }
1720 }
1721 else if (dimensions == 3) {
1722 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1723 if (!ctx->Extensions.MESA_texture_array) {
1724 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1725 return GL_TRUE;
1726 }
1727 }
1728 else if (target != GL_TEXTURE_3D) {
1729 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1730 return GL_TRUE;
1731 }
1732 }
1733 else {
1734 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1735 return GL_TRUE;
1736 }
1737
1738 /* Basic level check */
1739 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1740 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1741 return GL_TRUE;
1742 }
1743
1744 if (width < 0) {
1745 _mesa_error(ctx, GL_INVALID_VALUE,
1746 "glTexSubImage%dD(width=%d)", dimensions, width);
1747 return GL_TRUE;
1748 }
1749 if (height < 0 && dimensions > 1) {
1750 _mesa_error(ctx, GL_INVALID_VALUE,
1751 "glTexSubImage%dD(height=%d)", dimensions, height);
1752 return GL_TRUE;
1753 }
1754 if (depth < 0 && dimensions > 2) {
1755 _mesa_error(ctx, GL_INVALID_VALUE,
1756 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1757 return GL_TRUE;
1758 }
1759
1760 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1761 _mesa_error(ctx, GL_INVALID_ENUM,
1762 "glTexSubImage%dD(format or type)", dimensions);
1763 return GL_TRUE;
1764 }
1765
1766 return GL_FALSE;
1767 }
1768
1769 static GLboolean
1770 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1771 GLenum target, GLint level,
1772 GLint xoffset, GLint yoffset, GLint zoffset,
1773 GLint width, GLint height, GLint depth,
1774 GLenum format, GLenum type,
1775 const struct gl_texture_image *destTex )
1776 {
1777 if (!destTex) {
1778 /* undefined image level */
1779 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1780 return GL_TRUE;
1781 }
1782
1783 if (xoffset < -((GLint)destTex->Border)) {
1784 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1785 dimensions);
1786 return GL_TRUE;
1787 }
1788 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1789 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1790 dimensions);
1791 return GL_TRUE;
1792 }
1793 if (dimensions > 1) {
1794 if (yoffset < -((GLint)destTex->Border)) {
1795 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1796 dimensions);
1797 return GL_TRUE;
1798 }
1799 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1800 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1801 dimensions);
1802 return GL_TRUE;
1803 }
1804 }
1805 if (dimensions > 2) {
1806 if (zoffset < -((GLint)destTex->Border)) {
1807 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1808 return GL_TRUE;
1809 }
1810 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1811 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1812 return GL_TRUE;
1813 }
1814 }
1815
1816 #if FEATURE_EXT_texture_sRGB
1817 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1818 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1819 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1820 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1821 if ((width & 0x3) || (height & 0x3) ||
1822 (xoffset & 0x3) || (yoffset & 0x3))
1823 _mesa_error(ctx, GL_INVALID_OPERATION,
1824 "glTexSubImage%dD(size or offset not multiple of 4)",
1825 dimensions);
1826 return GL_TRUE;
1827 }
1828 #endif
1829
1830 if (destTex->IsCompressed) {
1831 if (!target_can_be_compressed(ctx, target)) {
1832 _mesa_error(ctx, GL_INVALID_ENUM,
1833 "glTexSubImage%D(target)", dimensions);
1834 return GL_TRUE;
1835 }
1836 /* offset must be multiple of 4 */
1837 if ((xoffset & 3) || (yoffset & 3)) {
1838 _mesa_error(ctx, GL_INVALID_OPERATION,
1839 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1840 return GL_TRUE;
1841 }
1842 /* size must be multiple of 4 or equal to whole texture size */
1843 if ((width & 3) && (GLuint) width != destTex->Width) {
1844 _mesa_error(ctx, GL_INVALID_OPERATION,
1845 "glTexSubImage%D(width)", dimensions);
1846 return GL_TRUE;
1847 }
1848 if ((height & 3) && (GLuint) height != destTex->Height) {
1849 _mesa_error(ctx, GL_INVALID_OPERATION,
1850 "glTexSubImage%D(width)", dimensions);
1851 return GL_TRUE;
1852 }
1853 }
1854
1855 return GL_FALSE;
1856 }
1857
1858
1859 /**
1860 * Test glCopyTexImage[12]D() parameters for errors.
1861 *
1862 * \param ctx GL context.
1863 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1864 * \param target texture target given by the user.
1865 * \param level image level given by the user.
1866 * \param internalFormat internal format given by the user.
1867 * \param width image width given by the user.
1868 * \param height image height given by the user.
1869 * \param depth image depth given by the user.
1870 * \param border texture border.
1871 *
1872 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1873 *
1874 * Verifies each of the parameters against the constants specified in
1875 * __GLcontextRec::Const and the supported extensions, and according to the
1876 * OpenGL specification.
1877 */
1878 static GLboolean
1879 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1880 GLenum target, GLint level, GLint internalFormat,
1881 GLint width, GLint height, GLint border )
1882 {
1883 GLenum type;
1884 GLboolean sizeOK;
1885 GLint format;
1886
1887 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1888 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1889 _mesa_error(ctx, GL_INVALID_VALUE,
1890 "glCopyTexImage%dD(level=%d)", dimensions, level);
1891 return GL_TRUE;
1892 }
1893
1894 /* Check that the source buffer is complete */
1895 if (ctx->ReadBuffer->Name) {
1896 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1897 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1898 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1899 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1900 return GL_TRUE;
1901 }
1902 }
1903
1904 /* Check border */
1905 if (border < 0 || border > 1 ||
1906 ((target == GL_TEXTURE_RECTANGLE_NV ||
1907 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1908 return GL_TRUE;
1909 }
1910
1911 format = _mesa_base_tex_format(ctx, internalFormat);
1912 if (format < 0) {
1913 _mesa_error(ctx, GL_INVALID_VALUE,
1914 "glCopyTexImage%dD(internalFormat)", dimensions);
1915 return GL_TRUE;
1916 }
1917
1918 /* NOTE: the format and type aren't really significant for
1919 * TestProxyTexImage(). Only the internalformat really matters.
1920 if (!_mesa_source_buffer_exists(ctx, format)) {
1921 _mesa_error(ctx, GL_INVALID_OPERATION,
1922 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1923 return GL_TRUE;
1924 }
1925
1926 */
1927 type = GL_FLOAT;
1928
1929 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1930 * level, width, height and depth.
1931 */
1932 if (dimensions == 1) {
1933 if (target == GL_TEXTURE_1D) {
1934 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1935 level, internalFormat,
1936 format, type,
1937 width, 1, 1, border);
1938 }
1939 else {
1940 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1941 return GL_TRUE;
1942 }
1943 }
1944 else if (dimensions == 2) {
1945 if (target == GL_TEXTURE_2D) {
1946 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1947 level, internalFormat,
1948 format, type,
1949 width, height, 1, border);
1950 }
1951 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1952 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1953 if (!ctx->Extensions.ARB_texture_cube_map) {
1954 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1955 return GL_TRUE;
1956 }
1957 sizeOK = (width == height) &&
1958 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1959 level, internalFormat, format, type,
1960 width, height, 1, border);
1961 }
1962 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1963 if (!ctx->Extensions.NV_texture_rectangle) {
1964 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1965 return GL_TRUE;
1966 }
1967 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1968 GL_PROXY_TEXTURE_RECTANGLE_NV,
1969 level, internalFormat,
1970 format, type,
1971 width, height, 1, border);
1972 }
1973 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1974 if (!ctx->Extensions.MESA_texture_array) {
1975 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1976 return GL_TRUE;
1977 }
1978 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1979 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1980 level, internalFormat,
1981 format, type,
1982 width, height, 1, border);
1983 }
1984 else {
1985 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1986 return GL_TRUE;
1987 }
1988 }
1989 else {
1990 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1991 return GL_TRUE;
1992 }
1993
1994 if (!sizeOK) {
1995 if (dimensions == 1) {
1996 _mesa_error(ctx, GL_INVALID_VALUE,
1997 "glCopyTexImage1D(width=%d)", width);
1998 }
1999 else {
2000 ASSERT(dimensions == 2);
2001 _mesa_error(ctx, GL_INVALID_VALUE,
2002 "glCopyTexImage2D(width=%d, height=%d)", width, height);
2003 }
2004 return GL_TRUE;
2005 }
2006
2007 if (is_compressed_format(ctx, internalFormat)) {
2008 if (!target_can_be_compressed(ctx, target)) {
2009 _mesa_error(ctx, GL_INVALID_ENUM,
2010 "glCopyTexImage%d(target)", dimensions);
2011 return GL_TRUE;
2012 }
2013 if (border != 0) {
2014 _mesa_error(ctx, GL_INVALID_OPERATION,
2015 "glCopyTexImage%D(border!=0)", dimensions);
2016 return GL_TRUE;
2017 }
2018 }
2019 else if (is_depth_format(internalFormat)) {
2020 /* make sure we have depth/stencil buffers */
2021 if (!ctx->ReadBuffer->_DepthBuffer) {
2022 _mesa_error(ctx, GL_INVALID_OPERATION,
2023 "glCopyTexImage%D(no depth)", dimensions);
2024 return GL_TRUE;
2025 }
2026 }
2027 else if (is_depthstencil_format(internalFormat)) {
2028 /* make sure we have depth/stencil buffers */
2029 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2030 _mesa_error(ctx, GL_INVALID_OPERATION,
2031 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
2032 return GL_TRUE;
2033 }
2034 }
2035
2036 /* if we get here, the parameters are OK */
2037 return GL_FALSE;
2038 }
2039
2040
2041 /**
2042 * Test glCopyTexSubImage[12]D() parameters for errors.
2043 *
2044 * \param ctx GL context.
2045 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2046 * \param target texture target given by the user.
2047 * \param level image level given by the user.
2048 * \param xoffset sub-image x offset given by the user.
2049 * \param yoffset sub-image y offset given by the user.
2050 * \param zoffset sub-image z offset given by the user.
2051 * \param width image width given by the user.
2052 * \param height image height given by the user.
2053 *
2054 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2055 *
2056 * Verifies each of the parameters against the constants specified in
2057 * __GLcontextRec::Const and the supported extensions, and according to the
2058 * OpenGL specification.
2059 */
2060 static GLboolean
2061 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
2062 GLenum target, GLint level,
2063 GLint xoffset, GLint yoffset, GLint zoffset,
2064 GLsizei width, GLsizei height)
2065 {
2066 /* Check target */
2067 /* Check that the source buffer is complete */
2068 if (ctx->ReadBuffer->Name) {
2069 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2070 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2071 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2072 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2073 return GL_TRUE;
2074 }
2075 }
2076
2077 if (dimensions == 1) {
2078 if (target != GL_TEXTURE_1D) {
2079 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2080 return GL_TRUE;
2081 }
2082 }
2083 else if (dimensions == 2) {
2084 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2085 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2086 if (!ctx->Extensions.ARB_texture_cube_map) {
2087 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2088 return GL_TRUE;
2089 }
2090 }
2091 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2092 if (!ctx->Extensions.NV_texture_rectangle) {
2093 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2094 return GL_TRUE;
2095 }
2096 }
2097 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2098 if (!ctx->Extensions.MESA_texture_array) {
2099 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2100 return GL_TRUE;
2101 }
2102 }
2103 else if (target != GL_TEXTURE_2D) {
2104 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2105 return GL_TRUE;
2106 }
2107 }
2108 else if (dimensions == 3) {
2109 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2110 (!ctx->Extensions.MESA_texture_array))
2111 && (target != GL_TEXTURE_3D)) {
2112 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2113 return GL_TRUE;
2114 }
2115 }
2116
2117 /* Check level */
2118 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2119 _mesa_error(ctx, GL_INVALID_VALUE,
2120 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2121 return GL_TRUE;
2122 }
2123
2124 /* Check size */
2125 if (width < 0) {
2126 _mesa_error(ctx, GL_INVALID_VALUE,
2127 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2128 return GL_TRUE;
2129 }
2130 if (dimensions > 1 && height < 0) {
2131 _mesa_error(ctx, GL_INVALID_VALUE,
2132 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2133 return GL_TRUE;
2134 }
2135
2136 return GL_FALSE;
2137 }
2138
2139 static GLboolean
2140 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2141 GLenum target, GLint level,
2142 GLint xoffset, GLint yoffset, GLint zoffset,
2143 GLsizei width, GLsizei height,
2144 const struct gl_texture_image *teximage )
2145 {
2146 if (!teximage) {
2147 _mesa_error(ctx, GL_INVALID_OPERATION,
2148 "glCopyTexSubImage%dD(undefined texture level: %d)",
2149 dimensions, level);
2150 return GL_TRUE;
2151 }
2152
2153 if (xoffset < -((GLint)teximage->Border)) {
2154 _mesa_error(ctx, GL_INVALID_VALUE,
2155 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2156 return GL_TRUE;
2157 }
2158 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2159 _mesa_error(ctx, GL_INVALID_VALUE,
2160 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2161 return GL_TRUE;
2162 }
2163 if (dimensions > 1) {
2164 if (yoffset < -((GLint)teximage->Border)) {
2165 _mesa_error(ctx, GL_INVALID_VALUE,
2166 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2167 return GL_TRUE;
2168 }
2169 /* NOTE: we're adding the border here, not subtracting! */
2170 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2171 _mesa_error(ctx, GL_INVALID_VALUE,
2172 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2173 return GL_TRUE;
2174 }
2175 }
2176
2177 if (dimensions > 2) {
2178 if (zoffset < -((GLint)teximage->Border)) {
2179 _mesa_error(ctx, GL_INVALID_VALUE,
2180 "glCopyTexSubImage%dD(zoffset)", dimensions);
2181 return GL_TRUE;
2182 }
2183 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2184 _mesa_error(ctx, GL_INVALID_VALUE,
2185 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2186 return GL_TRUE;
2187 }
2188 }
2189
2190 if (teximage->IsCompressed) {
2191 if (!target_can_be_compressed(ctx, target)) {
2192 _mesa_error(ctx, GL_INVALID_ENUM,
2193 "glCopyTexSubImage%d(target)", dimensions);
2194 return GL_TRUE;
2195 }
2196 /* offset must be multiple of 4 */
2197 if ((xoffset & 3) || (yoffset & 3)) {
2198 _mesa_error(ctx, GL_INVALID_VALUE,
2199 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2200 return GL_TRUE;
2201 }
2202 /* size must be multiple of 4 */
2203 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2204 _mesa_error(ctx, GL_INVALID_VALUE,
2205 "glCopyTexSubImage%D(width)", dimensions);
2206 return GL_TRUE;
2207 }
2208 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2209 _mesa_error(ctx, GL_INVALID_VALUE,
2210 "glCopyTexSubImage%D(height)", dimensions);
2211 return GL_TRUE;
2212 }
2213 }
2214
2215 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2216 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2217 return GL_TRUE;
2218 }
2219
2220 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2221 _mesa_error(ctx, GL_INVALID_OPERATION,
2222 "glCopyTexSubImage%dD(missing readbuffer)", dimensions);
2223 return GL_TRUE;
2224 }
2225
2226 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2227 if (!ctx->ReadBuffer->_DepthBuffer) {
2228 _mesa_error(ctx, GL_INVALID_OPERATION,
2229 "glCopyTexSubImage%D(no depth buffer)",
2230 dimensions);
2231 return GL_TRUE;
2232 }
2233 }
2234 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2235 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2236 _mesa_error(ctx, GL_INVALID_OPERATION,
2237 "glCopyTexSubImage%D(no depth/stencil buffer)",
2238 dimensions);
2239 return GL_TRUE;
2240 }
2241 }
2242
2243 /* if we get here, the parameters are OK */
2244 return GL_FALSE;
2245 }
2246
2247
2248 /**
2249 * Get texture image. Called by glGetTexImage.
2250 *
2251 * \param target texture target.
2252 * \param level image level.
2253 * \param format pixel data format for returned image.
2254 * \param type pixel data type for returned image.
2255 * \param pixels returned pixel data.
2256 */
2257 void GLAPIENTRY
2258 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2259 GLenum type, GLvoid *pixels )
2260 {
2261 const struct gl_texture_unit *texUnit;
2262 struct gl_texture_object *texObj;
2263 struct gl_texture_image *texImage;
2264 GLint maxLevels = 0;
2265 GET_CURRENT_CONTEXT(ctx);
2266 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2267
2268 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2269 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2270 if (!texObj || _mesa_is_proxy_texture(target)) {
2271 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2272 return;
2273 }
2274
2275 maxLevels = _mesa_max_texture_levels(ctx, target);
2276 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2277
2278 if (level < 0 || level >= maxLevels) {
2279 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2280 return;
2281 }
2282
2283 if (_mesa_sizeof_packed_type(type) <= 0) {
2284 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2285 return;
2286 }
2287
2288 if (_mesa_components_in_format(format) <= 0 ||
2289 format == GL_STENCIL_INDEX) {
2290 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2291 return;
2292 }
2293
2294 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2295 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2296 return;
2297 }
2298
2299 if (!ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2300 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2301 return;
2302 }
2303
2304 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2305 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2306 return;
2307 }
2308
2309 if (!ctx->Extensions.EXT_packed_depth_stencil
2310 && is_depthstencil_format(format)) {
2311 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2312 return;
2313 }
2314
2315 _mesa_lock_texture(ctx, texObj);
2316 {
2317 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2318 if (!texImage) {
2319 /* invalid mipmap level, not an error */
2320 goto out;
2321 }
2322
2323
2324 /* Make sure the requested image format is compatible with the
2325 * texture's format. Note that a color index texture can be converted
2326 * to RGBA so that combo is allowed.
2327 */
2328 if (is_color_format(format)
2329 && !is_color_format(texImage->TexFormat->BaseFormat)
2330 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2331 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2332 goto out;
2333 }
2334 else if (is_index_format(format)
2335 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2336 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2337 goto out;
2338 }
2339 else if (is_depth_format(format)
2340 && !is_depth_format(texImage->TexFormat->BaseFormat)
2341 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2342 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2343 goto out;
2344 }
2345 else if (is_ycbcr_format(format)
2346 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2347 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2348 goto out;
2349 }
2350 else if (is_depthstencil_format(format)
2351 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2352 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2353 goto out;
2354 }
2355
2356 if (ctx->Pack.BufferObj->Name) {
2357 /* packing texture image into a PBO */
2358 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2359 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2360 texImage->Height, texImage->Depth,
2361 format, type, pixels)) {
2362 _mesa_error(ctx, GL_INVALID_OPERATION,
2363 "glGetTexImage(invalid PBO access)");
2364 goto out;
2365 }
2366 }
2367
2368 /* typically, this will call _mesa_get_teximage() */
2369 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2370 texObj, texImage);
2371
2372 }
2373 out:
2374 _mesa_unlock_texture(ctx, texObj);
2375 }
2376
2377
2378
2379 /**
2380 * Check if the given texture image is bound to any framebuffer objects
2381 * and update/invalidate them.
2382 * XXX We're only checking the currently bound framebuffer object for now.
2383 * In the future, perhaps struct gl_texture_image should have a pointer (or
2384 * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
2385 */
2386 static void
2387 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2388 GLuint face, GLuint level)
2389 {
2390 if (ctx->DrawBuffer->Name) {
2391 GLuint i;
2392 for (i = 0; i < BUFFER_COUNT; i++) {
2393 struct gl_renderbuffer_attachment *att =
2394 ctx->DrawBuffer->Attachment + i;
2395 if (att->Type == GL_TEXTURE &&
2396 att->Texture == texObj &&
2397 att->TextureLevel == level &&
2398 att->CubeMapFace == face) {
2399 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2400 /* Tell driver about the new renderbuffer texture */
2401 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2402 }
2403 }
2404 }
2405 }
2406
2407
2408
2409 /*
2410 * Called from the API. Note that width includes the border.
2411 */
2412 void GLAPIENTRY
2413 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2414 GLsizei width, GLint border, GLenum format,
2415 GLenum type, const GLvoid *pixels )
2416 {
2417 GLsizei postConvWidth = width;
2418 GET_CURRENT_CONTEXT(ctx);
2419 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2420
2421 #if FEATURE_convolve
2422 if (is_color_format(internalFormat)) {
2423 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2424 }
2425 #endif
2426
2427 if (target == GL_TEXTURE_1D) {
2428 /* non-proxy target */
2429 struct gl_texture_unit *texUnit;
2430 struct gl_texture_object *texObj;
2431 struct gl_texture_image *texImage;
2432 const GLuint face = _mesa_tex_target_to_face(target);
2433
2434 if (texture_error_check(ctx, target, level, internalFormat,
2435 format, type, 1, postConvWidth, 1, 1, border)) {
2436 return; /* error was recorded */
2437 }
2438
2439 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2440 _mesa_update_state(ctx);
2441
2442 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2443 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2444 _mesa_lock_texture(ctx, texObj);
2445 {
2446 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2447 if (!texImage) {
2448 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2449 goto out;
2450 }
2451
2452 if (texImage->Data) {
2453 ctx->Driver.FreeTexImageData( ctx, texImage );
2454 }
2455
2456 ASSERT(texImage->Data == NULL);
2457
2458 clear_teximage_fields(texImage); /* not really needed, but helpful */
2459 _mesa_init_teximage_fields(ctx, target, texImage,
2460 postConvWidth, 1, 1,
2461 border, internalFormat);
2462
2463 ASSERT(ctx->Driver.TexImage1D);
2464
2465 /* Give the texture to the driver! <pixels> may be null! */
2466 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2467 width, border, format, type, pixels,
2468 &ctx->Unpack, texObj, texImage);
2469
2470 ASSERT(texImage->TexFormat);
2471
2472 update_fbo_texture(ctx, texObj, face, level);
2473
2474 /* state update */
2475 texObj->_Complete = GL_FALSE;
2476 ctx->NewState |= _NEW_TEXTURE;
2477 }
2478 out:
2479 _mesa_unlock_texture(ctx, texObj);
2480 }
2481 else if (target == GL_PROXY_TEXTURE_1D) {
2482 /* Proxy texture: check for errors and update proxy state */
2483 struct gl_texture_image *texImage;
2484 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2485 if (texture_error_check(ctx, target, level, internalFormat,
2486 format, type, 1, postConvWidth, 1, 1, border)) {
2487 /* when error, clear all proxy texture image parameters */
2488 if (texImage)
2489 clear_teximage_fields(texImage);
2490 }
2491 else {
2492 /* no error, set the tex image parameters */
2493 ASSERT(texImage);
2494 _mesa_init_teximage_fields(ctx, target, texImage,
2495 postConvWidth, 1, 1,
2496 border, internalFormat);
2497 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2498 internalFormat, format, type);
2499 }
2500 }
2501 else {
2502 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2503 return;
2504 }
2505 }
2506
2507
2508 void GLAPIENTRY
2509 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2510 GLsizei width, GLsizei height, GLint border,
2511 GLenum format, GLenum type,
2512 const GLvoid *pixels )
2513 {
2514 GLsizei postConvWidth = width, postConvHeight = height;
2515 GET_CURRENT_CONTEXT(ctx);
2516 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2517
2518 #if FEATURE_convolve
2519 if (is_color_format(internalFormat)) {
2520 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2521 &postConvHeight);
2522 }
2523 #endif
2524
2525 if (target == GL_TEXTURE_2D ||
2526 (ctx->Extensions.ARB_texture_cube_map &&
2527 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2528 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2529 (ctx->Extensions.NV_texture_rectangle &&
2530 target == GL_TEXTURE_RECTANGLE_NV) ||
2531 (ctx->Extensions.MESA_texture_array &&
2532 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2533 /* non-proxy target */
2534 struct gl_texture_unit *texUnit;
2535 struct gl_texture_object *texObj;
2536 struct gl_texture_image *texImage;
2537 const GLuint face = _mesa_tex_target_to_face(target);
2538
2539 if (texture_error_check(ctx, target, level, internalFormat,
2540 format, type, 2, postConvWidth, postConvHeight,
2541 1, border)) {
2542 return; /* error was recorded */
2543 }
2544
2545 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2546 _mesa_update_state(ctx);
2547
2548 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2549 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2550 _mesa_lock_texture(ctx, texObj);
2551 {
2552 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2553 if (!texImage) {
2554 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2555 goto out;
2556 }
2557
2558 if (texImage->Data) {
2559 ctx->Driver.FreeTexImageData( ctx, texImage );
2560 }
2561
2562 ASSERT(texImage->Data == NULL);
2563 clear_teximage_fields(texImage); /* not really needed, but helpful */
2564 _mesa_init_teximage_fields(ctx, target, texImage,
2565 postConvWidth, postConvHeight, 1,
2566 border, internalFormat);
2567
2568 ASSERT(ctx->Driver.TexImage2D);
2569
2570 /* Give the texture to the driver! <pixels> may be null! */
2571 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2572 width, height, border, format, type, pixels,
2573 &ctx->Unpack, texObj, texImage);
2574
2575 ASSERT(texImage->TexFormat);
2576
2577 update_fbo_texture(ctx, texObj, face, level);
2578
2579 /* state update */
2580 texObj->_Complete = GL_FALSE;
2581 ctx->NewState |= _NEW_TEXTURE;
2582 }
2583 out:
2584 _mesa_unlock_texture(ctx, texObj);
2585 }
2586 else if (target == GL_PROXY_TEXTURE_2D ||
2587 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2588 ctx->Extensions.ARB_texture_cube_map) ||
2589 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2590 ctx->Extensions.NV_texture_rectangle) ||
2591 (ctx->Extensions.MESA_texture_array &&
2592 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2593 /* Proxy texture: check for errors and update proxy state */
2594 struct gl_texture_image *texImage;
2595 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2596 if (texture_error_check(ctx, target, level, internalFormat,
2597 format, type, 2, postConvWidth, postConvHeight,
2598 1, border)) {
2599 /* when error, clear all proxy texture image parameters */
2600 if (texImage)
2601 clear_teximage_fields(ctx->Texture.ProxyTex[TEXTURE_2D_INDEX]->Image[0][level]);
2602 }
2603 else {
2604 /* no error, set the tex image parameters */
2605 _mesa_init_teximage_fields(ctx, target, texImage,
2606 postConvWidth, postConvHeight, 1,
2607 border, internalFormat);
2608 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2609 internalFormat, format, type);
2610 }
2611 }
2612 else {
2613 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2614 return;
2615 }
2616 }
2617
2618
2619 /*
2620 * Called by the API or display list executor.
2621 * Note that width and height include the border.
2622 */
2623 void GLAPIENTRY
2624 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2625 GLsizei width, GLsizei height, GLsizei depth,
2626 GLint border, GLenum format, GLenum type,
2627 const GLvoid *pixels )
2628 {
2629 GET_CURRENT_CONTEXT(ctx);
2630 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2631
2632 if (target == GL_TEXTURE_3D ||
2633 (ctx->Extensions.MESA_texture_array &&
2634 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2635 /* non-proxy target */
2636 struct gl_texture_unit *texUnit;
2637 struct gl_texture_object *texObj;
2638 struct gl_texture_image *texImage;
2639 const GLuint face = _mesa_tex_target_to_face(target);
2640
2641 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2642 format, type, 3, width, height, depth, border)) {
2643 return; /* error was recorded */
2644 }
2645
2646 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2647 _mesa_update_state(ctx);
2648
2649 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2650 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2651 _mesa_lock_texture(ctx, texObj);
2652 {
2653 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2654 if (!texImage) {
2655 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2656 goto out;
2657 }
2658
2659 if (texImage->Data) {
2660 ctx->Driver.FreeTexImageData( ctx, texImage );
2661 }
2662
2663 ASSERT(texImage->Data == NULL);
2664 clear_teximage_fields(texImage); /* not really needed, but helpful */
2665 _mesa_init_teximage_fields(ctx, target, texImage,
2666 width, height, depth,
2667 border, internalFormat);
2668
2669 ASSERT(ctx->Driver.TexImage3D);
2670
2671 /* Give the texture to the driver! <pixels> may be null! */
2672 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2673 width, height, depth, border, format, type,
2674 pixels, &ctx->Unpack, texObj, texImage);
2675
2676 ASSERT(texImage->TexFormat);
2677
2678 update_fbo_texture(ctx, texObj, face, level);
2679
2680 /* state update */
2681 texObj->_Complete = GL_FALSE;
2682 ctx->NewState |= _NEW_TEXTURE;
2683 }
2684 out:
2685 _mesa_unlock_texture(ctx, texObj);
2686 }
2687 else if (target == GL_PROXY_TEXTURE_3D ||
2688 (ctx->Extensions.MESA_texture_array &&
2689 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2690 /* Proxy texture: check for errors and update proxy state */
2691 struct gl_texture_image *texImage;
2692 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2693 if (texture_error_check(ctx, target, level, internalFormat,
2694 format, type, 3, width, height, depth, border)) {
2695 /* when error, clear all proxy texture image parameters */
2696 if (texImage)
2697 clear_teximage_fields(texImage);
2698 }
2699 else {
2700 /* no error, set the tex image parameters */
2701 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2702 depth, border, internalFormat);
2703 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2704 internalFormat, format, type);
2705 }
2706 }
2707 else {
2708 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2709 return;
2710 }
2711 }
2712
2713
2714 void GLAPIENTRY
2715 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2716 GLsizei width, GLsizei height, GLsizei depth,
2717 GLint border, GLenum format, GLenum type,
2718 const GLvoid *pixels )
2719 {
2720 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2721 depth, border, format, type, pixels);
2722 }
2723
2724
2725
2726 void GLAPIENTRY
2727 _mesa_TexSubImage1D( GLenum target, GLint level,
2728 GLint xoffset, GLsizei width,
2729 GLenum format, GLenum type,
2730 const GLvoid *pixels )
2731 {
2732 GLsizei postConvWidth = width;
2733 struct gl_texture_unit *texUnit;
2734 struct gl_texture_object *texObj;
2735 struct gl_texture_image *texImage = NULL;
2736 GET_CURRENT_CONTEXT(ctx);
2737 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2738
2739 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2740 _mesa_update_state(ctx);
2741
2742 #if FEATURE_convolve
2743 /* XXX should test internal format */
2744 if (is_color_format(format)) {
2745 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2746 }
2747 #endif
2748
2749 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2750 postConvWidth, 1, 1, format, type)) {
2751 return; /* error was detected */
2752 }
2753
2754
2755 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2756 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2757 assert(texObj);
2758
2759 _mesa_lock_texture(ctx, texObj);
2760 {
2761 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2762
2763 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2764 postConvWidth, 1, 1, format, type, texImage)) {
2765 goto out; /* error was detected */
2766 }
2767
2768 if (width == 0)
2769 goto out; /* no-op, not an error */
2770
2771 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2772 xoffset += texImage->Border;
2773
2774 ASSERT(ctx->Driver.TexSubImage1D);
2775 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2776 format, type, pixels, &ctx->Unpack,
2777 texObj, texImage);
2778 ctx->NewState |= _NEW_TEXTURE;
2779 }
2780 out:
2781 _mesa_unlock_texture(ctx, texObj);
2782 }
2783
2784
2785 void GLAPIENTRY
2786 _mesa_TexSubImage2D( GLenum target, GLint level,
2787 GLint xoffset, GLint yoffset,
2788 GLsizei width, GLsizei height,
2789 GLenum format, GLenum type,
2790 const GLvoid *pixels )
2791 {
2792 GLsizei postConvWidth = width, postConvHeight = height;
2793 struct gl_texture_unit *texUnit;
2794 struct gl_texture_object *texObj;
2795 struct gl_texture_image *texImage;
2796 GET_CURRENT_CONTEXT(ctx);
2797 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2798
2799 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2800 _mesa_update_state(ctx);
2801
2802 #if FEATURE_convolve
2803 /* XXX should test internal format */
2804 if (is_color_format(format)) {
2805 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2806 &postConvHeight);
2807 }
2808 #endif
2809
2810 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2811 postConvWidth, postConvHeight, 1, format, type)) {
2812 return; /* error was detected */
2813 }
2814
2815 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2816 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2817 _mesa_lock_texture(ctx, texObj);
2818 {
2819 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2820
2821 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2822 postConvWidth, postConvHeight, 1, format, type,
2823 texImage)) {
2824 goto out; /* error was detected */
2825 }
2826
2827 if (width == 0 || height == 0)
2828 goto out; /* no-op, not an error */
2829
2830 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2831 xoffset += texImage->Border;
2832 yoffset += texImage->Border;
2833
2834 ASSERT(ctx->Driver.TexSubImage2D);
2835 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2836 width, height, format, type, pixels,
2837 &ctx->Unpack, texObj, texImage);
2838 ctx->NewState |= _NEW_TEXTURE;
2839 }
2840 out:
2841 _mesa_unlock_texture(ctx, texObj);
2842 }
2843
2844
2845
2846 void GLAPIENTRY
2847 _mesa_TexSubImage3D( GLenum target, GLint level,
2848 GLint xoffset, GLint yoffset, GLint zoffset,
2849 GLsizei width, GLsizei height, GLsizei depth,
2850 GLenum format, GLenum type,
2851 const GLvoid *pixels )
2852 {
2853 struct gl_texture_unit *texUnit;
2854 struct gl_texture_object *texObj;
2855 struct gl_texture_image *texImage;
2856 GET_CURRENT_CONTEXT(ctx);
2857 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2858
2859 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2860 _mesa_update_state(ctx);
2861
2862 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2863 width, height, depth, format, type)) {
2864 return; /* error was detected */
2865 }
2866
2867 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2868 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2869
2870 _mesa_lock_texture(ctx, texObj);
2871 {
2872 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2873
2874 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2875 width, height, depth, format, type, texImage)) {
2876 goto out; /* error was detected */
2877 }
2878
2879 if (width == 0 || height == 0 || height == 0)
2880 goto out; /* no-op, not an error */
2881
2882 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2883 xoffset += texImage->Border;
2884 yoffset += texImage->Border;
2885 zoffset += texImage->Border;
2886
2887 ASSERT(ctx->Driver.TexSubImage3D);
2888 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2889 xoffset, yoffset, zoffset,
2890 width, height, depth,
2891 format, type, pixels,
2892 &ctx->Unpack, texObj, texImage );
2893 ctx->NewState |= _NEW_TEXTURE;
2894 }
2895 out:
2896 _mesa_unlock_texture(ctx, texObj);
2897 }
2898
2899
2900
2901 void GLAPIENTRY
2902 _mesa_CopyTexImage1D( GLenum target, GLint level,
2903 GLenum internalFormat,
2904 GLint x, GLint y,
2905 GLsizei width, GLint border )
2906 {
2907 struct gl_texture_unit *texUnit;
2908 struct gl_texture_object *texObj;
2909 struct gl_texture_image *texImage;
2910 GLsizei postConvWidth = width;
2911 const GLuint face = _mesa_tex_target_to_face(target);
2912 GET_CURRENT_CONTEXT(ctx);
2913 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2914
2915 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2916 _mesa_update_state(ctx);
2917
2918 #if FEATURE_convolve
2919 if (is_color_format(internalFormat)) {
2920 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2921 }
2922 #endif
2923
2924 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2925 postConvWidth, 1, border))
2926 return;
2927
2928 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2929 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2930 _mesa_lock_texture(ctx, texObj);
2931 {
2932 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2933 if (!texImage) {
2934 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2935 goto out;
2936 }
2937
2938 if (texImage->Data) {
2939 ctx->Driver.FreeTexImageData( ctx, texImage );
2940 }
2941
2942 ASSERT(texImage->Data == NULL);
2943
2944 clear_teximage_fields(texImage); /* not really needed, but helpful */
2945 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2946 border, internalFormat);
2947
2948
2949 ASSERT(ctx->Driver.CopyTexImage1D);
2950 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2951 x, y, width, border);
2952
2953 ASSERT(texImage->TexFormat);
2954
2955 update_fbo_texture(ctx, texObj, face, level);
2956
2957 /* state update */
2958 texObj->_Complete = GL_FALSE;
2959 ctx->NewState |= _NEW_TEXTURE;
2960 }
2961 out:
2962 _mesa_unlock_texture(ctx, texObj);
2963 }
2964
2965
2966
2967 void GLAPIENTRY
2968 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2969 GLint x, GLint y, GLsizei width, GLsizei height,
2970 GLint border )
2971 {
2972 struct gl_texture_unit *texUnit;
2973 struct gl_texture_object *texObj;
2974 struct gl_texture_image *texImage;
2975 GLsizei postConvWidth = width, postConvHeight = height;
2976 const GLuint face = _mesa_tex_target_to_face(target);
2977 GET_CURRENT_CONTEXT(ctx);
2978 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2979
2980 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2981 _mesa_update_state(ctx);
2982
2983 #if FEATURE_convolve
2984 if (is_color_format(internalFormat)) {
2985 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2986 &postConvHeight);
2987 }
2988 #endif
2989 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2990 postConvWidth, postConvHeight, border))
2991 return;
2992
2993 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2994 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2995
2996 _mesa_lock_texture(ctx, texObj);
2997 {
2998 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2999
3000 if (!texImage) {
3001 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
3002 goto out;
3003 }
3004
3005 if (texImage->Data) {
3006 ctx->Driver.FreeTexImageData( ctx, texImage );
3007 }
3008
3009 ASSERT(texImage->Data == NULL);
3010
3011 clear_teximage_fields(texImage); /* not really needed, but helpful */
3012 _mesa_init_teximage_fields(ctx, target, texImage,
3013 postConvWidth, postConvHeight, 1,
3014 border, internalFormat);
3015
3016 ASSERT(ctx->Driver.CopyTexImage2D);
3017 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
3018 x, y, width, height, border);
3019
3020 ASSERT(texImage->TexFormat);
3021
3022 update_fbo_texture(ctx, texObj, face, level);
3023
3024 /* state update */
3025 texObj->_Complete = GL_FALSE;
3026 ctx->NewState |= _NEW_TEXTURE;
3027 }
3028 out:
3029 _mesa_unlock_texture(ctx, texObj);
3030 }
3031
3032
3033 void GLAPIENTRY
3034 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3035 GLint xoffset, GLint x, GLint y, GLsizei width )
3036 {
3037 struct gl_texture_unit *texUnit;
3038 struct gl_texture_object *texObj;
3039 struct gl_texture_image *texImage;
3040 GLsizei postConvWidth = width;
3041 GLint yoffset = 0;
3042 GLsizei height = 1;
3043
3044 GET_CURRENT_CONTEXT(ctx);
3045 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3046
3047 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3048 _mesa_update_state(ctx);
3049
3050 #if FEATURE_convolve
3051 /* XXX should test internal format */
3052 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3053 #endif
3054
3055 if (copytexsubimage_error_check(ctx, 1, target, level,
3056 xoffset, 0, 0, postConvWidth, 1))
3057 return;
3058
3059 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3060 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3061
3062 _mesa_lock_texture(ctx, texObj);
3063 {
3064 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3065
3066 if (copytexsubimage_error_check2(ctx, 1, target, level,
3067 xoffset, 0, 0, postConvWidth, 1,
3068 texImage))
3069 goto out;
3070
3071
3072 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3073 xoffset += texImage->Border;
3074
3075 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3076 &width, &height)) {
3077 ASSERT(ctx->Driver.CopyTexSubImage1D);
3078 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
3079 xoffset, x, y, width);
3080 }
3081
3082 ctx->NewState |= _NEW_TEXTURE;
3083 }
3084 out:
3085 _mesa_unlock_texture(ctx, texObj);
3086 }
3087
3088
3089
3090 void GLAPIENTRY
3091 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3092 GLint xoffset, GLint yoffset,
3093 GLint x, GLint y, GLsizei width, GLsizei height )
3094 {
3095 struct gl_texture_unit *texUnit;
3096 struct gl_texture_object *texObj;
3097 struct gl_texture_image *texImage;
3098 GLsizei postConvWidth = width, postConvHeight = height;
3099 GET_CURRENT_CONTEXT(ctx);
3100 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3101
3102 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3103 _mesa_update_state(ctx);
3104
3105 #if FEATURE_convolve
3106 /* XXX should test internal format */
3107 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3108 #endif
3109
3110 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
3111 postConvWidth, postConvHeight))
3112 return;
3113
3114 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3115 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3116
3117 _mesa_lock_texture(ctx, texObj);
3118 {
3119 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3120
3121 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3122 postConvWidth, postConvHeight, texImage))
3123 goto out;
3124
3125 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3126 xoffset += texImage->Border;
3127 yoffset += texImage->Border;
3128
3129 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3130 &width, &height)) {
3131 ASSERT(ctx->Driver.CopyTexSubImage2D);
3132 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
3133 xoffset, yoffset, x, y, width, height);
3134 }
3135
3136 ctx->NewState |= _NEW_TEXTURE;
3137 }
3138 out:
3139 _mesa_unlock_texture(ctx, texObj);
3140 }
3141
3142
3143
3144 void GLAPIENTRY
3145 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3146 GLint xoffset, GLint yoffset, GLint zoffset,
3147 GLint x, GLint y, GLsizei width, GLsizei height )
3148 {
3149 struct gl_texture_unit *texUnit;
3150 struct gl_texture_object *texObj;
3151 struct gl_texture_image *texImage;
3152 GLsizei postConvWidth = width, postConvHeight = height;
3153 GET_CURRENT_CONTEXT(ctx);
3154 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3155
3156 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3157 _mesa_update_state(ctx);
3158
3159 #if FEATURE_convolve
3160 /* XXX should test internal format */
3161 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3162 #endif
3163
3164 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
3165 zoffset, postConvWidth, postConvHeight))
3166 return;
3167
3168 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3169 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3170
3171 _mesa_lock_texture(ctx, texObj);
3172 {
3173 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3174
3175 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3176 zoffset, postConvWidth, postConvHeight,
3177 texImage))
3178 goto out;
3179
3180 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3181 xoffset += texImage->Border;
3182 yoffset += texImage->Border;
3183 zoffset += texImage->Border;
3184
3185 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3186 &width, &height)) {
3187 ASSERT(ctx->Driver.CopyTexSubImage3D);
3188 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
3189 xoffset, yoffset, zoffset,
3190 x, y, width, height);
3191 }
3192
3193 ctx->NewState |= _NEW_TEXTURE;
3194 }
3195 out:
3196 _mesa_unlock_texture(ctx, texObj);
3197 }
3198
3199
3200
3201
3202 /**********************************************************************/
3203 /****** Compressed Textures ******/
3204 /**********************************************************************/
3205
3206
3207 /**
3208 * Error checking for glCompressedTexImage[123]D().
3209 * \return error code or GL_NO_ERROR.
3210 */
3211 static GLenum
3212 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3213 GLenum target, GLint level,
3214 GLenum internalFormat, GLsizei width,
3215 GLsizei height, GLsizei depth, GLint border,
3216 GLsizei imageSize)
3217 {
3218 GLint expectedSize, maxLevels = 0, maxTextureSize;
3219
3220 if (dimensions == 1) {
3221 /* 1D compressed textures not allowed */
3222 return GL_INVALID_ENUM;
3223 }
3224 else if (dimensions == 2) {
3225 if (target == GL_PROXY_TEXTURE_2D) {
3226 maxLevels = ctx->Const.MaxTextureLevels;
3227 }
3228 else if (target == GL_TEXTURE_2D) {
3229 maxLevels = ctx->Const.MaxTextureLevels;
3230 }
3231 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3232 if (!ctx->Extensions.ARB_texture_cube_map)
3233 return GL_INVALID_ENUM; /*target*/
3234 maxLevels = ctx->Const.MaxCubeTextureLevels;
3235 }
3236 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3237 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3238 if (!ctx->Extensions.ARB_texture_cube_map)
3239 return GL_INVALID_ENUM; /*target*/
3240 maxLevels = ctx->Const.MaxCubeTextureLevels;
3241 }
3242 else {
3243 return GL_INVALID_ENUM; /*target*/
3244 }
3245 }
3246 else if (dimensions == 3) {
3247 /* 3D compressed textures not allowed */
3248 return GL_INVALID_ENUM;
3249 }
3250
3251 maxTextureSize = 1 << (maxLevels - 1);
3252
3253 /* This will detect any invalid internalFormat value */
3254 if (!is_compressed_format(ctx, internalFormat))
3255 return GL_INVALID_ENUM;
3256
3257 /* This should really never fail */
3258 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3259 return GL_INVALID_ENUM;
3260
3261 if (border != 0)
3262 return GL_INVALID_VALUE;
3263
3264 /*
3265 * XXX We should probably use the proxy texture error check function here.
3266 */
3267 if (width < 1 || width > maxTextureSize ||
3268 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
3269 return GL_INVALID_VALUE;
3270
3271 if ((height < 1 || height > maxTextureSize ||
3272 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
3273 && dimensions > 1)
3274 return GL_INVALID_VALUE;
3275
3276 if ((depth < 1 || depth > maxTextureSize ||
3277 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
3278 && dimensions > 2)
3279 return GL_INVALID_VALUE;
3280
3281 /* For cube map, width must equal height */
3282 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3283 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3284 return GL_INVALID_VALUE;
3285
3286 if (level < 0 || level >= maxLevels)
3287 return GL_INVALID_VALUE;
3288
3289 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3290 depth, internalFormat);
3291 if (expectedSize != imageSize)
3292 return GL_INVALID_VALUE;
3293
3294 #if FEATURE_EXT_texture_sRGB
3295 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3296 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3297 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3298 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3299 && border != 0) {
3300 return GL_INVALID_OPERATION;
3301 }
3302 #endif
3303
3304 return GL_NO_ERROR;
3305 }
3306
3307
3308 /**
3309 * Error checking for glCompressedTexSubImage[123]D().
3310 * \warning There are some bad assumptions here about the size of compressed
3311 * texture tiles (multiple of 4) used to test the validity of the
3312 * offset and size parameters.
3313 * \return error code or GL_NO_ERROR.
3314 */
3315 static GLenum
3316 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3317 GLenum target, GLint level,
3318 GLint xoffset, GLint yoffset, GLint zoffset,
3319 GLsizei width, GLsizei height, GLsizei depth,
3320 GLenum format, GLsizei imageSize)
3321 {
3322 GLint expectedSize, maxLevels = 0, maxTextureSize;
3323 (void) zoffset;
3324
3325 if (dimensions == 1) {
3326 /* 1D compressed textures not allowed */
3327 return GL_INVALID_ENUM;
3328 }
3329 else if (dimensions == 2) {
3330 if (target == GL_PROXY_TEXTURE_2D) {
3331 maxLevels = ctx->Const.MaxTextureLevels;
3332 }
3333 else if (target == GL_TEXTURE_2D) {
3334 maxLevels = ctx->Const.MaxTextureLevels;
3335 }
3336 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3337 if (!ctx->Extensions.ARB_texture_cube_map)
3338 return GL_INVALID_ENUM; /*target*/
3339 maxLevels = ctx->Const.MaxCubeTextureLevels;
3340 }
3341 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3342 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3343 if (!ctx->Extensions.ARB_texture_cube_map)
3344 return GL_INVALID_ENUM; /*target*/
3345 maxLevels = ctx->Const.MaxCubeTextureLevels;
3346 }
3347 else {
3348 return GL_INVALID_ENUM; /*target*/
3349 }
3350 }
3351 else if (dimensions == 3) {
3352 /* 3D compressed textures not allowed */
3353 return GL_INVALID_ENUM;
3354 }
3355
3356 maxTextureSize = 1 << (maxLevels - 1);
3357
3358 /* this will catch any invalid compressed format token */
3359 if (!is_compressed_format(ctx, format))
3360 return GL_INVALID_ENUM;
3361
3362 if (width < 1 || width > maxTextureSize)
3363 return GL_INVALID_VALUE;
3364
3365 if ((height < 1 || height > maxTextureSize)
3366 && dimensions > 1)
3367 return GL_INVALID_VALUE;
3368
3369 if (level < 0 || level >= maxLevels)
3370 return GL_INVALID_VALUE;
3371
3372 /* XXX these tests are specific to the compressed format.
3373 * this code should be generalized in some way.
3374 */
3375 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3376 return GL_INVALID_VALUE;
3377
3378 if ((width & 3) != 0 && width != 2 && width != 1)
3379 return GL_INVALID_VALUE;
3380
3381 if ((height & 3) != 0 && height != 2 && height != 1)
3382 return GL_INVALID_VALUE;
3383
3384 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3385 depth, format);
3386 if (expectedSize != imageSize)
3387 return GL_INVALID_VALUE;
3388
3389 return GL_NO_ERROR;
3390 }
3391
3392
3393
3394 void GLAPIENTRY
3395 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3396 GLenum internalFormat, GLsizei width,
3397 GLint border, GLsizei imageSize,
3398 const GLvoid *data)
3399 {
3400 GET_CURRENT_CONTEXT(ctx);
3401 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3402
3403 if (target == GL_TEXTURE_1D) {
3404 /* non-proxy target */
3405 struct gl_texture_unit *texUnit;
3406 struct gl_texture_object *texObj;
3407 struct gl_texture_image *texImage;
3408 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3409 internalFormat, width, 1, 1, border, imageSize);
3410 if (error) {
3411 _mesa_error(ctx, error, "glCompressedTexImage1D");
3412 return;
3413 }
3414
3415 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3416 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3417
3418 _mesa_lock_texture(ctx, texObj);
3419 {
3420 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3421 if (!texImage) {
3422 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3423 goto out;
3424 }
3425
3426 if (texImage->Data) {
3427 ctx->Driver.FreeTexImageData( ctx, texImage );
3428 }
3429 ASSERT(texImage->Data == NULL);
3430
3431 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3432 border, internalFormat);
3433
3434 ASSERT(ctx->Driver.CompressedTexImage1D);
3435 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3436 internalFormat, width, border,
3437 imageSize, data,
3438 texObj, texImage);
3439
3440 /* state update */
3441 texObj->_Complete = GL_FALSE;
3442 ctx->NewState |= _NEW_TEXTURE;
3443 }
3444 out:
3445 _mesa_unlock_texture(ctx, texObj);
3446 }
3447 else if (target == GL_PROXY_TEXTURE_1D) {
3448 /* Proxy texture: check for errors and update proxy state */
3449 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3450 internalFormat, width, 1, 1, border, imageSize);
3451 if (!error) {
3452 ASSERT(ctx->Driver.TestProxyTexImage);
3453 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3454 internalFormat, GL_NONE, GL_NONE,
3455 width, 1, 1, border);
3456 }
3457 if (error) {
3458 /* if error, clear all proxy texture image parameters */
3459 struct gl_texture_image *texImage;
3460 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3461 if (texImage)
3462 clear_teximage_fields(texImage);
3463 }
3464 else {
3465 /* store the teximage parameters */
3466 struct gl_texture_unit *texUnit;
3467 struct gl_texture_object *texObj;
3468 struct gl_texture_image *texImage;
3469 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3470 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3471
3472 _mesa_lock_texture(ctx, texObj);
3473 {
3474 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3475 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3476 border, internalFormat);
3477 }
3478 _mesa_unlock_texture(ctx, texObj);
3479 }
3480 }
3481 else {
3482 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3483 return;
3484 }
3485 }
3486
3487
3488 void GLAPIENTRY
3489 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3490 GLenum internalFormat, GLsizei width,
3491 GLsizei height, GLint border, GLsizei imageSize,
3492 const GLvoid *data)
3493 {
3494 GET_CURRENT_CONTEXT(ctx);
3495 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3496
3497 if (target == GL_TEXTURE_2D ||
3498 (ctx->Extensions.ARB_texture_cube_map &&
3499 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3500 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3501 /* non-proxy target */
3502 struct gl_texture_unit *texUnit;
3503 struct gl_texture_object *texObj;
3504 struct gl_texture_image *texImage;
3505 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3506 internalFormat, width, height, 1, border, imageSize);
3507 if (error) {
3508 _mesa_error(ctx, error, "glCompressedTexImage2D");
3509 return;
3510 }
3511
3512 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3513 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3514
3515 _mesa_lock_texture(ctx, texObj);
3516 {
3517 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3518 if (!texImage) {
3519 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3520 goto out;
3521 }
3522
3523 if (texImage->Data) {
3524 ctx->Driver.FreeTexImageData( ctx, texImage );
3525 }
3526 ASSERT(texImage->Data == NULL);
3527
3528 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3529 border, internalFormat);
3530
3531 ASSERT(ctx->Driver.CompressedTexImage2D);
3532 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3533 internalFormat, width, height,
3534 border, imageSize, data,
3535 texObj, texImage);
3536
3537 /* state update */
3538 texObj->_Complete = GL_FALSE;
3539 ctx->NewState |= _NEW_TEXTURE;
3540 }
3541 out:
3542 _mesa_unlock_texture(ctx, texObj);
3543 }
3544 else if (target == GL_PROXY_TEXTURE_2D ||
3545 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3546 ctx->Extensions.ARB_texture_cube_map)) {
3547 /* Proxy texture: check for errors and update proxy state */
3548 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3549 internalFormat, width, height, 1, border, imageSize);
3550 if (!error) {
3551 ASSERT(ctx->Driver.TestProxyTexImage);
3552 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3553 internalFormat, GL_NONE, GL_NONE,
3554 width, height, 1, border);
3555 }
3556 if (error) {
3557 /* if error, clear all proxy texture image parameters */
3558 struct gl_texture_image *texImage;
3559 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3560 if (texImage)
3561 clear_teximage_fields(texImage);
3562 }
3563 else {
3564 /* store the teximage parameters */
3565 struct gl_texture_unit *texUnit;
3566 struct gl_texture_object *texObj;
3567 struct gl_texture_image *texImage;
3568 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3569 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3570
3571 _mesa_lock_texture(ctx, texObj);
3572 {
3573 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3574 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3575 border, internalFormat);
3576 }
3577 _mesa_unlock_texture(ctx, texObj);
3578 }
3579 }
3580 else {
3581 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3582 return;
3583 }
3584 }
3585
3586
3587 void GLAPIENTRY
3588 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3589 GLenum internalFormat, GLsizei width,
3590 GLsizei height, GLsizei depth, GLint border,
3591 GLsizei imageSize, const GLvoid *data)
3592 {
3593 GET_CURRENT_CONTEXT(ctx);
3594 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3595
3596 if (target == GL_TEXTURE_3D) {
3597 /* non-proxy target */
3598 struct gl_texture_unit *texUnit;
3599 struct gl_texture_object *texObj;
3600 struct gl_texture_image *texImage;
3601 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3602 internalFormat, width, height, depth, border, imageSize);
3603 if (error) {
3604 _mesa_error(ctx, error, "glCompressedTexImage3D");
3605 return;
3606 }
3607
3608 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3609 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3610 _mesa_lock_texture(ctx, texObj);
3611 {
3612 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3613 if (!texImage) {
3614 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3615 goto out;
3616 }
3617
3618 if (texImage->Data) {
3619 ctx->Driver.FreeTexImageData( ctx, texImage );
3620 }
3621 ASSERT(texImage->Data == NULL);
3622
3623 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3624 border, internalFormat);
3625
3626 ASSERT(ctx->Driver.CompressedTexImage3D);
3627 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3628 internalFormat,
3629 width, height, depth,
3630 border, imageSize, data,
3631 texObj, texImage);
3632
3633 /* state update */
3634 texObj->_Complete = GL_FALSE;
3635 ctx->NewState |= _NEW_TEXTURE;
3636 }
3637 out:
3638 _mesa_unlock_texture(ctx, texObj);
3639 }
3640 else if (target == GL_PROXY_TEXTURE_3D) {
3641 /* Proxy texture: check for errors and update proxy state */
3642 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3643 internalFormat, width, height, depth, border, imageSize);
3644 if (!error) {
3645 ASSERT(ctx->Driver.TestProxyTexImage);
3646 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3647 internalFormat, GL_NONE, GL_NONE,
3648 width, height, depth, border);
3649 }
3650 if (error) {
3651 /* if error, clear all proxy texture image parameters */
3652 struct gl_texture_image *texImage;
3653 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3654 if (texImage)
3655 clear_teximage_fields(texImage);
3656 }
3657 else {
3658 /* store the teximage parameters */
3659 struct gl_texture_unit *texUnit;
3660 struct gl_texture_object *texObj;
3661 struct gl_texture_image *texImage;
3662 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3663 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3664 _mesa_lock_texture(ctx, texObj);
3665 {
3666 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3667 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3668 depth, border, internalFormat);
3669 }
3670 _mesa_unlock_texture(ctx, texObj);
3671 }
3672 }
3673 else {
3674 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3675 return;
3676 }
3677 }
3678
3679
3680 void GLAPIENTRY
3681 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3682 GLsizei width, GLenum format,
3683 GLsizei imageSize, const GLvoid *data)
3684 {
3685 struct gl_texture_unit *texUnit;
3686 struct gl_texture_object *texObj;
3687 struct gl_texture_image *texImage;
3688 GLenum error;
3689 GET_CURRENT_CONTEXT(ctx);
3690 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3691
3692 error = compressed_subtexture_error_check(ctx, 1, target, level,
3693 xoffset, 0, 0, /* pos */
3694 width, 1, 1, /* size */
3695 format, imageSize);
3696 if (error) {
3697 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3698 return;
3699 }
3700
3701 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3702 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3703 _mesa_lock_texture(ctx, texObj);
3704 {
3705 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3706 assert(texImage);
3707
3708 if ((GLint) format != texImage->InternalFormat) {
3709 _mesa_error(ctx, GL_INVALID_OPERATION,
3710 "glCompressedTexSubImage1D(format)");
3711 goto out;
3712 }
3713
3714 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3715 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3716 goto out;
3717 }
3718
3719 if (width == 0)
3720 goto out; /* no-op, not an error */
3721
3722 if (ctx->Driver.CompressedTexSubImage1D) {
3723 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3724 xoffset, width,
3725 format, imageSize, data,
3726 texObj, texImage);
3727 }
3728 ctx->NewState |= _NEW_TEXTURE;
3729 }
3730 out:
3731 _mesa_unlock_texture(ctx, texObj);
3732 }
3733
3734
3735 void GLAPIENTRY
3736 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3737 GLint yoffset, GLsizei width, GLsizei height,
3738 GLenum format, GLsizei imageSize,
3739 const GLvoid *data)
3740 {
3741 struct gl_texture_unit *texUnit;
3742 struct gl_texture_object *texObj;
3743 struct gl_texture_image *texImage;
3744 GLenum error;
3745 GET_CURRENT_CONTEXT(ctx);
3746 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3747
3748 error = compressed_subtexture_error_check(ctx, 2, target, level,
3749 xoffset, yoffset, 0, /* pos */
3750 width, height, 1, /* size */
3751 format, imageSize);
3752 if (error) {
3753 /* XXX proxy target? */
3754 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3755 return;
3756 }
3757
3758 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3759 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3760 _mesa_lock_texture(ctx, texObj);
3761 {
3762 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3763 assert(texImage);
3764
3765 if ((GLint) format != texImage->InternalFormat) {
3766 _mesa_error(ctx, GL_INVALID_OPERATION,
3767 "glCompressedTexSubImage2D(format)");
3768 goto out;
3769 }
3770
3771 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3772 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3773 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3774 goto out;
3775 }
3776
3777 if (width == 0 || height == 0)
3778 goto out; /* no-op, not an error */
3779
3780 if (ctx->Driver.CompressedTexSubImage2D) {
3781 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3782 xoffset, yoffset, width, height,
3783 format, imageSize, data,
3784 texObj, texImage);
3785 }
3786 ctx->NewState |= _NEW_TEXTURE;
3787 }
3788 out:
3789 _mesa_unlock_texture(ctx, texObj);
3790 }
3791
3792
3793 void GLAPIENTRY
3794 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3795 GLint yoffset, GLint zoffset, GLsizei width,
3796 GLsizei height, GLsizei depth, GLenum format,
3797 GLsizei imageSize, const GLvoid *data)
3798 {
3799 struct gl_texture_unit *texUnit;
3800 struct gl_texture_object *texObj;
3801 struct gl_texture_image *texImage;
3802 GLenum error;
3803 GET_CURRENT_CONTEXT(ctx);
3804 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3805
3806 error = compressed_subtexture_error_check(ctx, 3, target, level,
3807 xoffset, yoffset, zoffset,/*pos*/
3808 width, height, depth, /*size*/
3809 format, imageSize);
3810 if (error) {
3811 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3812 return;
3813 }
3814
3815 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3816 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3817 _mesa_lock_texture(ctx, texObj);
3818 {
3819 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3820 assert(texImage);
3821
3822 if ((GLint) format != texImage->InternalFormat) {
3823 _mesa_error(ctx, GL_INVALID_OPERATION,
3824 "glCompressedTexSubImage3D(format)");
3825 goto out;
3826 }
3827
3828 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3829 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3830 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3831 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3832 goto out;
3833 }
3834
3835 if (width == 0 || height == 0 || depth == 0)
3836 goto out; /* no-op, not an error */
3837
3838 if (ctx->Driver.CompressedTexSubImage3D) {
3839 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3840 xoffset, yoffset, zoffset,
3841 width, height, depth,
3842 format, imageSize, data,
3843 texObj, texImage);
3844 }
3845 ctx->NewState |= _NEW_TEXTURE;
3846 }
3847 out:
3848 _mesa_unlock_texture(ctx, texObj);
3849 }
3850
3851
3852 void GLAPIENTRY
3853 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3854 {
3855 const struct gl_texture_unit *texUnit;
3856 struct gl_texture_object *texObj;
3857 struct gl_texture_image *texImage;
3858 GLint maxLevels;
3859 GET_CURRENT_CONTEXT(ctx);
3860 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3861
3862 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3863 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3864 if (!texObj) {
3865 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3866 return;
3867 }
3868
3869 maxLevels = _mesa_max_texture_levels(ctx, target);
3870 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3871
3872 if (level < 0 || level >= maxLevels) {
3873 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3874 return;
3875 }
3876
3877 if (_mesa_is_proxy_texture(target)) {
3878 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3879 return;
3880 }
3881
3882 _mesa_lock_texture(ctx, texObj);
3883 {
3884 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3885 if (texImage) {
3886 if (texImage->IsCompressed) {
3887 /* this typically calls _mesa_get_compressed_teximage() */
3888 ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
3889 texObj, texImage);
3890 }
3891 else {
3892 _mesa_error(ctx, GL_INVALID_OPERATION,
3893 "glGetCompressedTexImageARB");
3894 }
3895 }
3896 else {
3897 /* probably invalid mipmap level */
3898 _mesa_error(ctx, GL_INVALID_VALUE,
3899 "glGetCompressedTexImageARB(level)");
3900 }
3901 }
3902 _mesa_unlock_texture(ctx, texObj);
3903 }