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Fix some PBO breakage.
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.1
4 *
5 * Copyright (C) 1999-2007 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 #include "convolve.h"
36 #include "fbobject.h"
37 #include "framebuffer.h"
38 #include "image.h"
39 #include "imports.h"
40 #include "macros.h"
41 #include "state.h"
42 #include "texcompress.h"
43 #include "texformat.h"
44 #include "teximage.h"
45 #include "texstate.h"
46 #include "texstore.h"
47 #include "mtypes.h"
48
49
50 /**
51 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
52 * elsewhere.
53 */
54 void *
55 _mesa_alloc_texmemory(GLsizei bytes)
56 {
57 return _mesa_align_malloc(bytes, 512);
58 }
59
60
61 /**
62 * Free texture memory allocated with _mesa_alloc_texmemory()
63 */
64 void
65 _mesa_free_texmemory(void *m)
66 {
67 _mesa_align_free(m);
68 }
69
70
71
72
73 #if 0
74 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
75 {
76 #if CHAN_TYPE != GL_UNSIGNED_BYTE
77 _mesa_problem(NULL, "PrintTexture not supported");
78 #else
79 GLuint i, j, c;
80 const GLubyte *data = (const GLubyte *) img->Data;
81
82 if (!data) {
83 _mesa_printf("No texture data\n");
84 return;
85 }
86
87 switch (img->Format) {
88 case GL_ALPHA:
89 case GL_LUMINANCE:
90 case GL_INTENSITY:
91 case GL_COLOR_INDEX:
92 c = 1;
93 break;
94 case GL_LUMINANCE_ALPHA:
95 c = 2;
96 break;
97 case GL_RGB:
98 c = 3;
99 break;
100 case GL_RGBA:
101 c = 4;
102 break;
103 default:
104 _mesa_problem(NULL, "error in PrintTexture\n");
105 return;
106 }
107
108 for (i = 0; i < img->Height; i++) {
109 for (j = 0; j < img->Width; j++) {
110 if (c==1)
111 _mesa_printf("%02x ", data[0]);
112 else if (c==2)
113 _mesa_printf("%02x%02x ", data[0], data[1]);
114 else if (c==3)
115 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
116 else if (c==4)
117 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
118 data += (img->RowStride - img->Width) * c;
119 }
120 /* XXX use img->ImageStride here */
121 _mesa_printf("\n");
122 }
123 #endif
124 }
125 #endif
126
127
128 /*
129 * Compute floor(log_base_2(n)).
130 * If n < 0 return -1.
131 */
132 static int
133 logbase2( int n )
134 {
135 GLint i = 1;
136 GLint log2 = 0;
137
138 if (n < 0)
139 return -1;
140
141 if (n == 0)
142 return 0;
143
144 while ( n > i ) {
145 i *= 2;
146 log2++;
147 }
148 if (i != n) {
149 return log2 - 1;
150 }
151 else {
152 return log2;
153 }
154 }
155
156
157
158 /**
159 * Return the simple base format for a given internal texture format.
160 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
161 *
162 * \param ctx GL context.
163 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
164 *
165 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
166 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
167 *
168 * This is the format which is used during texture application (i.e. the
169 * texture format and env mode determine the arithmetic used.
170 */
171 GLint
172 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
173 {
174 switch (internalFormat) {
175 case GL_ALPHA:
176 case GL_ALPHA4:
177 case GL_ALPHA8:
178 case GL_ALPHA12:
179 case GL_ALPHA16:
180 return GL_ALPHA;
181 case 1:
182 case GL_LUMINANCE:
183 case GL_LUMINANCE4:
184 case GL_LUMINANCE8:
185 case GL_LUMINANCE12:
186 case GL_LUMINANCE16:
187 return GL_LUMINANCE;
188 case 2:
189 case GL_LUMINANCE_ALPHA:
190 case GL_LUMINANCE4_ALPHA4:
191 case GL_LUMINANCE6_ALPHA2:
192 case GL_LUMINANCE8_ALPHA8:
193 case GL_LUMINANCE12_ALPHA4:
194 case GL_LUMINANCE12_ALPHA12:
195 case GL_LUMINANCE16_ALPHA16:
196 return GL_LUMINANCE_ALPHA;
197 case GL_INTENSITY:
198 case GL_INTENSITY4:
199 case GL_INTENSITY8:
200 case GL_INTENSITY12:
201 case GL_INTENSITY16:
202 return GL_INTENSITY;
203 case 3:
204 case GL_RGB:
205 case GL_R3_G3_B2:
206 case GL_RGB4:
207 case GL_RGB5:
208 case GL_RGB8:
209 case GL_RGB10:
210 case GL_RGB12:
211 case GL_RGB16:
212 return GL_RGB;
213 case 4:
214 case GL_RGBA:
215 case GL_RGBA2:
216 case GL_RGBA4:
217 case GL_RGB5_A1:
218 case GL_RGBA8:
219 case GL_RGB10_A2:
220 case GL_RGBA12:
221 case GL_RGBA16:
222 return GL_RGBA;
223 default:
224 ; /* fallthrough */
225 }
226
227 if (ctx->Extensions.EXT_paletted_texture) {
228 switch (internalFormat) {
229 case GL_COLOR_INDEX:
230 case GL_COLOR_INDEX1_EXT:
231 case GL_COLOR_INDEX2_EXT:
232 case GL_COLOR_INDEX4_EXT:
233 case GL_COLOR_INDEX8_EXT:
234 case GL_COLOR_INDEX12_EXT:
235 case GL_COLOR_INDEX16_EXT:
236 return GL_COLOR_INDEX;
237 default:
238 ; /* fallthrough */
239 }
240 }
241
242 if (ctx->Extensions.SGIX_depth_texture ||
243 ctx->Extensions.ARB_depth_texture) {
244 switch (internalFormat) {
245 case GL_DEPTH_COMPONENT:
246 case GL_DEPTH_COMPONENT16_SGIX:
247 case GL_DEPTH_COMPONENT24_SGIX:
248 case GL_DEPTH_COMPONENT32_SGIX:
249 return GL_DEPTH_COMPONENT;
250 default:
251 ; /* fallthrough */
252 }
253 }
254
255 if (ctx->Extensions.ARB_texture_compression) {
256 switch (internalFormat) {
257 case GL_COMPRESSED_ALPHA:
258 return GL_ALPHA;
259 case GL_COMPRESSED_LUMINANCE:
260 return GL_LUMINANCE;
261 case GL_COMPRESSED_LUMINANCE_ALPHA:
262 return GL_LUMINANCE_ALPHA;
263 case GL_COMPRESSED_INTENSITY:
264 return GL_INTENSITY;
265 case GL_COMPRESSED_RGB:
266 return GL_RGB;
267 case GL_COMPRESSED_RGBA:
268 return GL_RGBA;
269 default:
270 ; /* fallthrough */
271 }
272 }
273
274 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
275 switch (internalFormat) {
276 case GL_COMPRESSED_RGB_FXT1_3DFX:
277 return GL_RGB;
278 case GL_COMPRESSED_RGBA_FXT1_3DFX:
279 return GL_RGBA;
280 default:
281 ; /* fallthrough */
282 }
283 }
284
285 if (ctx->Extensions.EXT_texture_compression_s3tc) {
286 switch (internalFormat) {
287 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
288 return GL_RGB;
289 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
290 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
291 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
292 return GL_RGBA;
293 default:
294 ; /* fallthrough */
295 }
296 }
297
298 if (ctx->Extensions.S3_s3tc) {
299 switch (internalFormat) {
300 case GL_RGB_S3TC:
301 case GL_RGB4_S3TC:
302 return GL_RGB;
303 case GL_RGBA_S3TC:
304 case GL_RGBA4_S3TC:
305 return GL_RGBA;
306 default:
307 ; /* fallthrough */
308 }
309 }
310
311 if (ctx->Extensions.MESA_ycbcr_texture) {
312 if (internalFormat == GL_YCBCR_MESA)
313 return GL_YCBCR_MESA;
314 }
315
316 if (ctx->Extensions.ARB_texture_float) {
317 switch (internalFormat) {
318 case GL_ALPHA16F_ARB:
319 case GL_ALPHA32F_ARB:
320 return GL_ALPHA;
321 case GL_RGBA16F_ARB:
322 case GL_RGBA32F_ARB:
323 return GL_RGBA;
324 case GL_RGB16F_ARB:
325 case GL_RGB32F_ARB:
326 return GL_RGB;
327 case GL_INTENSITY16F_ARB:
328 case GL_INTENSITY32F_ARB:
329 return GL_INTENSITY;
330 case GL_LUMINANCE16F_ARB:
331 case GL_LUMINANCE32F_ARB:
332 return GL_LUMINANCE;
333 case GL_LUMINANCE_ALPHA16F_ARB:
334 case GL_LUMINANCE_ALPHA32F_ARB:
335 return GL_LUMINANCE_ALPHA;
336 default:
337 ; /* fallthrough */
338 }
339 }
340
341 if (ctx->Extensions.EXT_packed_depth_stencil) {
342 switch (internalFormat) {
343 case GL_DEPTH_STENCIL_EXT:
344 case GL_DEPTH24_STENCIL8_EXT:
345 return GL_DEPTH_STENCIL_EXT;
346 default:
347 ; /* fallthrough */
348 }
349 }
350
351 #if FEATURE_EXT_texture_sRGB
352 if (ctx->Extensions.EXT_texture_sRGB) {
353 switch (internalFormat) {
354 case GL_SRGB_EXT:
355 case GL_SRGB8_EXT:
356 case GL_COMPRESSED_SRGB_EXT:
357 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
358 return GL_RGB;
359 case GL_SRGB_ALPHA_EXT:
360 case GL_SRGB8_ALPHA8_EXT:
361 case GL_COMPRESSED_SRGB_ALPHA_EXT:
362 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
363 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
364 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
365 return GL_RGBA;
366 case GL_SLUMINANCE_ALPHA_EXT:
367 case GL_SLUMINANCE8_ALPHA8_EXT:
368 case GL_COMPRESSED_SLUMINANCE_EXT:
369 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
370 return GL_LUMINANCE_ALPHA;
371 case GL_SLUMINANCE_EXT:
372 case GL_SLUMINANCE8_EXT:
373 return GL_LUMINANCE;
374 default:
375 ; /* fallthrough */
376 }
377 }
378
379 #endif /* FEATURE_EXT_texture_sRGB */
380
381 return -1; /* error */
382 }
383
384
385 /**
386 * Test if the given image format is a color/RGBA format (i.e., not color
387 * index, depth, stencil, etc).
388 * \param format the image format value (may by an internal texture format)
389 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
390 */
391 static GLboolean
392 is_color_format(GLenum format)
393 {
394 switch (format) {
395 case GL_RED:
396 case GL_GREEN:
397 case GL_BLUE:
398 case GL_ALPHA:
399 case GL_ALPHA4:
400 case GL_ALPHA8:
401 case GL_ALPHA12:
402 case GL_ALPHA16:
403 case 1:
404 case GL_LUMINANCE:
405 case GL_LUMINANCE4:
406 case GL_LUMINANCE8:
407 case GL_LUMINANCE12:
408 case GL_LUMINANCE16:
409 case 2:
410 case GL_LUMINANCE_ALPHA:
411 case GL_LUMINANCE4_ALPHA4:
412 case GL_LUMINANCE6_ALPHA2:
413 case GL_LUMINANCE8_ALPHA8:
414 case GL_LUMINANCE12_ALPHA4:
415 case GL_LUMINANCE12_ALPHA12:
416 case GL_LUMINANCE16_ALPHA16:
417 case GL_INTENSITY:
418 case GL_INTENSITY4:
419 case GL_INTENSITY8:
420 case GL_INTENSITY12:
421 case GL_INTENSITY16:
422 case 3:
423 case GL_RGB:
424 case GL_BGR:
425 case GL_R3_G3_B2:
426 case GL_RGB4:
427 case GL_RGB5:
428 case GL_RGB8:
429 case GL_RGB10:
430 case GL_RGB12:
431 case GL_RGB16:
432 case 4:
433 case GL_ABGR_EXT:
434 case GL_RGBA:
435 case GL_BGRA:
436 case GL_RGBA2:
437 case GL_RGBA4:
438 case GL_RGB5_A1:
439 case GL_RGBA8:
440 case GL_RGB10_A2:
441 case GL_RGBA12:
442 case GL_RGBA16:
443 /* float texture formats */
444 case GL_ALPHA16F_ARB:
445 case GL_ALPHA32F_ARB:
446 case GL_LUMINANCE16F_ARB:
447 case GL_LUMINANCE32F_ARB:
448 case GL_LUMINANCE_ALPHA16F_ARB:
449 case GL_LUMINANCE_ALPHA32F_ARB:
450 case GL_INTENSITY16F_ARB:
451 case GL_INTENSITY32F_ARB:
452 case GL_RGB16F_ARB:
453 case GL_RGB32F_ARB:
454 case GL_RGBA16F_ARB:
455 case GL_RGBA32F_ARB:
456 /* compressed formats */
457 case GL_COMPRESSED_ALPHA:
458 case GL_COMPRESSED_LUMINANCE:
459 case GL_COMPRESSED_LUMINANCE_ALPHA:
460 case GL_COMPRESSED_INTENSITY:
461 case GL_COMPRESSED_RGB:
462 case GL_COMPRESSED_RGBA:
463 case GL_RGB_S3TC:
464 case GL_RGB4_S3TC:
465 case GL_RGBA_S3TC:
466 case GL_RGBA4_S3TC:
467 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
468 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
469 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
471 case GL_COMPRESSED_RGB_FXT1_3DFX:
472 case GL_COMPRESSED_RGBA_FXT1_3DFX:
473 #if FEATURE_EXT_texture_sRGB
474 case GL_SRGB_EXT:
475 case GL_SRGB8_EXT:
476 case GL_SRGB_ALPHA_EXT:
477 case GL_SRGB8_ALPHA8_EXT:
478 case GL_SLUMINANCE_ALPHA_EXT:
479 case GL_SLUMINANCE8_ALPHA8_EXT:
480 case GL_SLUMINANCE_EXT:
481 case GL_SLUMINANCE8_EXT:
482 case GL_COMPRESSED_SRGB_EXT:
483 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
484 case GL_COMPRESSED_SRGB_ALPHA_EXT:
485 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
486 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
487 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
488 case GL_COMPRESSED_SLUMINANCE_EXT:
489 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
490 #endif /* FEATURE_EXT_texture_sRGB */
491 return GL_TRUE;
492 case GL_YCBCR_MESA: /* not considered to be RGB */
493 default:
494 return GL_FALSE;
495 }
496 }
497
498
499 /**
500 * Test if the given image format is a color index format.
501 */
502 static GLboolean
503 is_index_format(GLenum format)
504 {
505 switch (format) {
506 case GL_COLOR_INDEX:
507 case GL_COLOR_INDEX1_EXT:
508 case GL_COLOR_INDEX2_EXT:
509 case GL_COLOR_INDEX4_EXT:
510 case GL_COLOR_INDEX8_EXT:
511 case GL_COLOR_INDEX12_EXT:
512 case GL_COLOR_INDEX16_EXT:
513 return GL_TRUE;
514 default:
515 return GL_FALSE;
516 }
517 }
518
519
520 /**
521 * Test if the given image format is a depth component format.
522 */
523 static GLboolean
524 is_depth_format(GLenum format)
525 {
526 switch (format) {
527 case GL_DEPTH_COMPONENT16_ARB:
528 case GL_DEPTH_COMPONENT24_ARB:
529 case GL_DEPTH_COMPONENT32_ARB:
530 case GL_DEPTH_COMPONENT:
531 return GL_TRUE;
532 default:
533 return GL_FALSE;
534 }
535 }
536
537
538 /**
539 * Test if the given image format is a YCbCr format.
540 */
541 static GLboolean
542 is_ycbcr_format(GLenum format)
543 {
544 switch (format) {
545 case GL_YCBCR_MESA:
546 return GL_TRUE;
547 default:
548 return GL_FALSE;
549 }
550 }
551
552
553 /**
554 * Test if the given image format is a Depth/Stencil format.
555 */
556 static GLboolean
557 is_depthstencil_format(GLenum format)
558 {
559 switch (format) {
560 case GL_DEPTH24_STENCIL8_EXT:
561 case GL_DEPTH_STENCIL_EXT:
562 return GL_TRUE;
563 default:
564 return GL_FALSE;
565 }
566 }
567
568
569
570 /**
571 * Test if it is a supported compressed format.
572 *
573 * \param internalFormat the internal format token provided by the user.
574 *
575 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
576 * GL_FALSE otherwise.
577 *
578 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
579 * are supported.
580 */
581 static GLboolean
582 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
583 {
584 GLint supported[100]; /* 100 should be plenty */
585 GLuint i, n;
586
587 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
588 ASSERT(n < 100);
589 for (i = 0; i < n; i++) {
590 if ((GLint) internalFormat == supported[i]) {
591 return GL_TRUE;
592 }
593 }
594 return GL_FALSE;
595 }
596
597
598 /**
599 * For cube map faces, return a face index in [0,5].
600 * For other targets return 0;
601 */
602 GLuint
603 _mesa_tex_target_to_face(GLenum target)
604 {
605 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
606 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
607 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
608 else
609 return 0;
610 }
611
612
613
614 /**
615 * Store a gl_texture_image pointer in a gl_texture_object structure
616 * according to the target and level parameters.
617 *
618 * \param tObj texture object.
619 * \param target texture target.
620 * \param level image level.
621 * \param texImage texture image.
622 *
623 * This was basically prompted by the introduction of cube maps.
624 */
625 void
626 _mesa_set_tex_image(struct gl_texture_object *tObj,
627 GLenum target, GLint level,
628 struct gl_texture_image *texImage)
629 {
630 ASSERT(tObj);
631 ASSERT(texImage);
632 /* XXX simplify this with _mesa_tex_target_to_face() */
633 switch (target) {
634 case GL_TEXTURE_1D:
635 case GL_TEXTURE_2D:
636 case GL_TEXTURE_3D:
637 case GL_TEXTURE_1D_ARRAY_EXT:
638 case GL_TEXTURE_2D_ARRAY_EXT:
639 tObj->Image[0][level] = texImage;
640 break;
641 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
642 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
643 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
644 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
645 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
646 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
647 {
648 GLuint face = ((GLuint) target -
649 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
650 tObj->Image[face][level] = texImage;
651 }
652 break;
653 case GL_TEXTURE_RECTANGLE_NV:
654 ASSERT(level == 0);
655 tObj->Image[0][level] = texImage;
656 break;
657 default:
658 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
659 return;
660 }
661 /* Set the 'back' pointer */
662 texImage->TexObject = tObj;
663 }
664
665
666 /**
667 * Allocate a texture image structure.
668 *
669 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
670 * driver.
671 *
672 * \return a pointer to gl_texture_image struct with all fields initialized to
673 * zero.
674 */
675 struct gl_texture_image *
676 _mesa_new_texture_image( GLcontext *ctx )
677 {
678 (void) ctx;
679 return CALLOC_STRUCT(gl_texture_image);
680 }
681
682
683 /**
684 * Free texture image data.
685 * This function is a fallback called via ctx->Driver.FreeTexImageData().
686 *
687 * \param teximage texture image.
688 *
689 * Free the texture image data if it's not marked as client data.
690 */
691 void
692 _mesa_free_texture_image_data(GLcontext *ctx,
693 struct gl_texture_image *texImage)
694 {
695 (void) ctx;
696
697 if (texImage->Data && !texImage->IsClientData) {
698 /* free the old texture data */
699 _mesa_free_texmemory(texImage->Data);
700 }
701
702 texImage->Data = NULL;
703 }
704
705
706 /**
707 * Free texture image.
708 *
709 * \param teximage texture image.
710 *
711 * Free the texture image structure and the associated image data.
712 */
713 void
714 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
715 {
716 /* Free texImage->Data and/or any other driver-specific texture
717 * image storage.
718 */
719 ASSERT(ctx->Driver.FreeTexImageData);
720 ctx->Driver.FreeTexImageData( ctx, texImage );
721
722 ASSERT(texImage->Data == NULL);
723 if (texImage->ImageOffsets)
724 _mesa_free(texImage->ImageOffsets);
725 _mesa_free(texImage);
726 }
727
728
729 /**
730 * Test if a target is a proxy target.
731 *
732 * \param target texture target.
733 *
734 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
735 */
736 GLboolean
737 _mesa_is_proxy_texture(GLenum target)
738 {
739 return (target == GL_PROXY_TEXTURE_1D ||
740 target == GL_PROXY_TEXTURE_2D ||
741 target == GL_PROXY_TEXTURE_3D ||
742 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
743 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
744 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
745 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
746 }
747
748
749 /**
750 * Get the texture object that corresponds to the target of the given texture unit.
751 *
752 * \param ctx GL context.
753 * \param texUnit texture unit.
754 * \param target texture target.
755 *
756 * \return pointer to the texture object on success, or NULL on failure.
757 *
758 * \sa gl_texture_unit.
759 */
760 struct gl_texture_object *
761 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
762 GLenum target)
763 {
764 switch (target) {
765 case GL_TEXTURE_1D:
766 return texUnit->Current1D;
767 case GL_PROXY_TEXTURE_1D:
768 return ctx->Texture.Proxy1D;
769 case GL_TEXTURE_2D:
770 return texUnit->Current2D;
771 case GL_PROXY_TEXTURE_2D:
772 return ctx->Texture.Proxy2D;
773 case GL_TEXTURE_3D:
774 return texUnit->Current3D;
775 case GL_PROXY_TEXTURE_3D:
776 return ctx->Texture.Proxy3D;
777 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
778 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
779 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
780 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
781 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
782 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
783 case GL_TEXTURE_CUBE_MAP_ARB:
784 return ctx->Extensions.ARB_texture_cube_map
785 ? texUnit->CurrentCubeMap : NULL;
786 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
787 return ctx->Extensions.ARB_texture_cube_map
788 ? ctx->Texture.ProxyCubeMap : NULL;
789 case GL_TEXTURE_RECTANGLE_NV:
790 return ctx->Extensions.NV_texture_rectangle
791 ? texUnit->CurrentRect : NULL;
792 case GL_PROXY_TEXTURE_RECTANGLE_NV:
793 return ctx->Extensions.NV_texture_rectangle
794 ? ctx->Texture.ProxyRect : NULL;
795 case GL_TEXTURE_1D_ARRAY_EXT:
796 return ctx->Extensions.MESA_texture_array
797 ? texUnit->Current1DArray : NULL;
798 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
799 return ctx->Extensions.MESA_texture_array
800 ? ctx->Texture.Proxy1DArray : NULL;
801 case GL_TEXTURE_2D_ARRAY_EXT:
802 return ctx->Extensions.MESA_texture_array
803 ? texUnit->Current2DArray : NULL;
804 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
805 return ctx->Extensions.MESA_texture_array
806 ? ctx->Texture.Proxy2DArray : NULL;
807 default:
808 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
809 return NULL;
810 }
811 }
812
813
814 /**
815 * Get the texture image struct which corresponds to target and level
816 * of the given texture unit.
817 *
818 * \param ctx GL context.
819 * \param texUnit texture unit.
820 * \param target texture target.
821 * \param level image level.
822 *
823 * \return pointer to the texture image structure on success, or NULL on failure.
824 *
825 * \sa gl_texture_unit.
826 */
827 struct gl_texture_image *
828 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
829 GLenum target, GLint level)
830 {
831 ASSERT(texObj);
832
833 if (level < 0 || level >= MAX_TEXTURE_LEVELS)
834 return NULL;
835
836 /* XXX simplify this with _mesa_tex_target_to_face() */
837 switch (target) {
838 case GL_TEXTURE_1D:
839 case GL_PROXY_TEXTURE_1D:
840 case GL_TEXTURE_2D:
841 case GL_PROXY_TEXTURE_2D:
842 case GL_TEXTURE_3D:
843 case GL_PROXY_TEXTURE_3D:
844 return texObj->Image[0][level];
845
846 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
847 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
848 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
849 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
850 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
851 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
852 if (ctx->Extensions.ARB_texture_cube_map) {
853 GLuint face = ((GLuint) target -
854 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
855 return texObj->Image[face][level];
856 }
857 else
858 return NULL;
859
860 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
861 if (ctx->Extensions.ARB_texture_cube_map)
862 return texObj->Image[0][level];
863 else
864 return NULL;
865
866 case GL_TEXTURE_RECTANGLE_NV:
867 case GL_PROXY_TEXTURE_RECTANGLE_NV:
868 if (ctx->Extensions.NV_texture_rectangle && level == 0)
869 return texObj->Image[0][level];
870 else
871 return NULL;
872
873 case GL_TEXTURE_1D_ARRAY_EXT:
874 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
875 case GL_TEXTURE_2D_ARRAY_EXT:
876 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
877 return (ctx->Extensions.MESA_texture_array)
878 ? texObj->Image[0][level] : NULL;
879
880 default:
881 return NULL;
882 }
883 }
884
885
886 /**
887 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
888 * it and install it. Only return NULL if passed a bad parameter or run
889 * out of memory.
890 */
891 struct gl_texture_image *
892 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
893 GLenum target, GLint level)
894 {
895 struct gl_texture_image *texImage;
896
897 if (!texObj)
898 return NULL;
899
900 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
901 if (!texImage) {
902 texImage = ctx->Driver.NewTextureImage(ctx);
903 if (!texImage) {
904 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
905 return NULL;
906 }
907
908 _mesa_set_tex_image(texObj, target, level, texImage);
909 }
910
911 return texImage;
912 }
913
914
915 /**
916 * Return pointer to the specified proxy texture image.
917 * Note that proxy textures are per-context, not per-texture unit.
918 * \return pointer to texture image or NULL if invalid target, invalid
919 * level, or out of memory.
920 */
921 struct gl_texture_image *
922 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
923 {
924 struct gl_texture_image *texImage;
925
926 if (level < 0 )
927 return NULL;
928
929 switch (target) {
930 case GL_PROXY_TEXTURE_1D:
931 if (level >= ctx->Const.MaxTextureLevels)
932 return NULL;
933 texImage = ctx->Texture.Proxy1D->Image[0][level];
934 if (!texImage) {
935 texImage = ctx->Driver.NewTextureImage(ctx);
936 if (!texImage) {
937 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
938 return NULL;
939 }
940 ctx->Texture.Proxy1D->Image[0][level] = texImage;
941 /* Set the 'back' pointer */
942 texImage->TexObject = ctx->Texture.Proxy1D;
943 }
944 return texImage;
945 case GL_PROXY_TEXTURE_2D:
946 if (level >= ctx->Const.MaxTextureLevels)
947 return NULL;
948 texImage = ctx->Texture.Proxy2D->Image[0][level];
949 if (!texImage) {
950 texImage = ctx->Driver.NewTextureImage(ctx);
951 if (!texImage) {
952 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
953 return NULL;
954 }
955 ctx->Texture.Proxy2D->Image[0][level] = texImage;
956 /* Set the 'back' pointer */
957 texImage->TexObject = ctx->Texture.Proxy2D;
958 }
959 return texImage;
960 case GL_PROXY_TEXTURE_3D:
961 if (level >= ctx->Const.Max3DTextureLevels)
962 return NULL;
963 texImage = ctx->Texture.Proxy3D->Image[0][level];
964 if (!texImage) {
965 texImage = ctx->Driver.NewTextureImage(ctx);
966 if (!texImage) {
967 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
968 return NULL;
969 }
970 ctx->Texture.Proxy3D->Image[0][level] = texImage;
971 /* Set the 'back' pointer */
972 texImage->TexObject = ctx->Texture.Proxy3D;
973 }
974 return texImage;
975 case GL_PROXY_TEXTURE_CUBE_MAP:
976 if (level >= ctx->Const.MaxCubeTextureLevels)
977 return NULL;
978 texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
979 if (!texImage) {
980 texImage = ctx->Driver.NewTextureImage(ctx);
981 if (!texImage) {
982 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
983 return NULL;
984 }
985 ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
986 /* Set the 'back' pointer */
987 texImage->TexObject = ctx->Texture.ProxyCubeMap;
988 }
989 return texImage;
990 case GL_PROXY_TEXTURE_RECTANGLE_NV:
991 if (level > 0)
992 return NULL;
993 texImage = ctx->Texture.ProxyRect->Image[0][level];
994 if (!texImage) {
995 texImage = ctx->Driver.NewTextureImage(ctx);
996 if (!texImage) {
997 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
998 return NULL;
999 }
1000 ctx->Texture.ProxyRect->Image[0][level] = texImage;
1001 /* Set the 'back' pointer */
1002 texImage->TexObject = ctx->Texture.ProxyRect;
1003 }
1004 return texImage;
1005 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1006 if (level >= ctx->Const.MaxTextureLevels)
1007 return NULL;
1008 texImage = ctx->Texture.Proxy1DArray->Image[0][level];
1009 if (!texImage) {
1010 texImage = ctx->Driver.NewTextureImage(ctx);
1011 if (!texImage) {
1012 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1013 return NULL;
1014 }
1015 ctx->Texture.Proxy1DArray->Image[0][level] = texImage;
1016 /* Set the 'back' pointer */
1017 texImage->TexObject = ctx->Texture.Proxy1DArray;
1018 }
1019 return texImage;
1020 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1021 if (level >= ctx->Const.MaxTextureLevels)
1022 return NULL;
1023 texImage = ctx->Texture.Proxy2DArray->Image[0][level];
1024 if (!texImage) {
1025 texImage = ctx->Driver.NewTextureImage(ctx);
1026 if (!texImage) {
1027 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1028 return NULL;
1029 }
1030 ctx->Texture.Proxy2DArray->Image[0][level] = texImage;
1031 /* Set the 'back' pointer */
1032 texImage->TexObject = ctx->Texture.Proxy2DArray;
1033 }
1034 return texImage;
1035 default:
1036 return NULL;
1037 }
1038 }
1039
1040
1041 /**
1042 * Get the maximum number of allowed mipmap levels.
1043 *
1044 * \param ctx GL context.
1045 * \param target texture target.
1046 *
1047 * \return the maximum number of allowed mipmap levels for the given
1048 * texture target, or zero if passed a bad target.
1049 *
1050 * \sa gl_constants.
1051 */
1052 GLint
1053 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
1054 {
1055 switch (target) {
1056 case GL_TEXTURE_1D:
1057 case GL_PROXY_TEXTURE_1D:
1058 case GL_TEXTURE_2D:
1059 case GL_PROXY_TEXTURE_2D:
1060 case GL_TEXTURE_1D_ARRAY_EXT:
1061 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1062 case GL_TEXTURE_2D_ARRAY_EXT:
1063 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1064 return ctx->Const.MaxTextureLevels;
1065 case GL_TEXTURE_3D:
1066 case GL_PROXY_TEXTURE_3D:
1067 return ctx->Const.Max3DTextureLevels;
1068 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
1069 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
1070 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
1071 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
1072 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
1073 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1074 case GL_TEXTURE_CUBE_MAP_ARB:
1075 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1076 return ctx->Const.MaxCubeTextureLevels;
1077 case GL_TEXTURE_RECTANGLE_NV:
1078 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1079 return 1;
1080 default:
1081 return 0; /* bad target */
1082 }
1083 }
1084
1085
1086
1087 #if 000 /* not used anymore */
1088 /*
1089 * glTexImage[123]D can accept a NULL image pointer. In this case we
1090 * create a texture image with unspecified image contents per the OpenGL
1091 * spec.
1092 */
1093 static GLubyte *
1094 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1095 {
1096 const GLint components = _mesa_components_in_format(format);
1097 const GLint numPixels = width * height * depth;
1098 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1099
1100 #ifdef DEBUG
1101 /*
1102 * Let's see if anyone finds this. If glTexImage2D() is called with
1103 * a NULL image pointer then load the texture image with something
1104 * interesting instead of leaving it indeterminate.
1105 */
1106 if (data) {
1107 static const char message[8][32] = {
1108 " X X XXXXX XXX X ",
1109 " XX XX X X X X X ",
1110 " X X X X X X X ",
1111 " X X XXXX XXX XXXXX ",
1112 " X X X X X X ",
1113 " X X X X X X X ",
1114 " X X XXXXX XXX X X ",
1115 " "
1116 };
1117
1118 GLubyte *imgPtr = data;
1119 GLint h, i, j, k;
1120 for (h = 0; h < depth; h++) {
1121 for (i = 0; i < height; i++) {
1122 GLint srcRow = 7 - (i % 8);
1123 for (j = 0; j < width; j++) {
1124 GLint srcCol = j % 32;
1125 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1126 for (k = 0; k < components; k++) {
1127 *imgPtr++ = texel;
1128 }
1129 }
1130 }
1131 }
1132 }
1133 #endif
1134
1135 return data;
1136 }
1137 #endif
1138
1139
1140
1141 /**
1142 * Reset the fields of a gl_texture_image struct to zero.
1143 *
1144 * \param img texture image structure.
1145 *
1146 * This is called when a proxy texture test fails, we set all the
1147 * image members (except DriverData) to zero.
1148 * It's also used in glTexImage[123]D as a safeguard to be sure all
1149 * required fields get initialized properly by the Driver.TexImage[123]D
1150 * functions.
1151 */
1152 static void
1153 clear_teximage_fields(struct gl_texture_image *img)
1154 {
1155 ASSERT(img);
1156 img->_BaseFormat = 0;
1157 img->InternalFormat = 0;
1158 img->Border = 0;
1159 img->Width = 0;
1160 img->Height = 0;
1161 img->Depth = 0;
1162 img->RowStride = 0;
1163 if (img->ImageOffsets) {
1164 _mesa_free(img->ImageOffsets);
1165 img->ImageOffsets = NULL;
1166 }
1167 img->Width2 = 0;
1168 img->Height2 = 0;
1169 img->Depth2 = 0;
1170 img->WidthLog2 = 0;
1171 img->HeightLog2 = 0;
1172 img->DepthLog2 = 0;
1173 img->Data = NULL;
1174 img->TexFormat = &_mesa_null_texformat;
1175 img->FetchTexelc = NULL;
1176 img->FetchTexelf = NULL;
1177 img->IsCompressed = 0;
1178 img->CompressedSize = 0;
1179 }
1180
1181
1182 /**
1183 * Initialize basic fields of the gl_texture_image struct.
1184 *
1185 * \param ctx GL context.
1186 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1187 * \param img texture image structure to be initialized.
1188 * \param width image width.
1189 * \param height image height.
1190 * \param depth image depth.
1191 * \param border image border.
1192 * \param internalFormat internal format.
1193 *
1194 * Fills in the fields of \p img with the given information.
1195 * Note: width, height and depth include the border.
1196 */
1197 void
1198 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1199 struct gl_texture_image *img,
1200 GLsizei width, GLsizei height, GLsizei depth,
1201 GLint border, GLenum internalFormat)
1202 {
1203 GLint i;
1204
1205 ASSERT(img);
1206 ASSERT(width >= 0);
1207 ASSERT(height >= 0);
1208 ASSERT(depth >= 0);
1209
1210 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1211 ASSERT(img->_BaseFormat > 0);
1212 img->InternalFormat = internalFormat;
1213 img->Border = border;
1214 img->Width = width;
1215 img->Height = height;
1216 img->Depth = depth;
1217
1218 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1219 img->WidthLog2 = logbase2(img->Width2);
1220
1221 if (height == 1) { /* 1-D texture */
1222 img->Height2 = 1;
1223 img->HeightLog2 = 0;
1224 }
1225 else {
1226 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1227 img->HeightLog2 = logbase2(img->Height2);
1228 }
1229
1230 if (depth == 1) { /* 2-D texture */
1231 img->Depth2 = 1;
1232 img->DepthLog2 = 0;
1233 }
1234 else {
1235 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1236 img->DepthLog2 = logbase2(img->Depth2);
1237 }
1238
1239 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1240
1241 img->IsCompressed = GL_FALSE;
1242 img->CompressedSize = 0;
1243
1244 if ((width == 1 || _mesa_bitcount(img->Width2) == 1) &&
1245 (height == 1 || _mesa_bitcount(img->Height2) == 1) &&
1246 (depth == 1 || _mesa_bitcount(img->Depth2) == 1))
1247 img->_IsPowerOfTwo = GL_TRUE;
1248 else
1249 img->_IsPowerOfTwo = GL_FALSE;
1250
1251 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1252 img->RowStride = width;
1253 /* Allocate the ImageOffsets array and initialize to typical values.
1254 * We allocate the array for 1D/2D textures too in order to avoid special-
1255 * case code in the texstore routines.
1256 */
1257 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
1258 for (i = 0; i < depth; i++) {
1259 img->ImageOffsets[i] = i * width * height;
1260 }
1261
1262 /* Compute Width/Height/DepthScale for mipmap lod computation */
1263 if (target == GL_TEXTURE_RECTANGLE_NV) {
1264 /* scale = 1.0 since texture coords directly map to texels */
1265 img->WidthScale = 1.0;
1266 img->HeightScale = 1.0;
1267 img->DepthScale = 1.0;
1268 }
1269 else {
1270 img->WidthScale = (GLfloat) img->Width;
1271 img->HeightScale = (GLfloat) img->Height;
1272 img->DepthScale = (GLfloat) img->Depth;
1273 }
1274 }
1275
1276
1277 /**
1278 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1279 * level, width, height and depth against the ctx->Const limits for textures.
1280 *
1281 * A hardware driver might override this function if, for example, the
1282 * max 3D texture size is 512x512x64 (i.e. not a cube).
1283 *
1284 * Note that width, height, depth == 0 is not an error. However, a
1285 * texture with zero width/height/depth will be considered "incomplete"
1286 * and texturing will effectively be disabled.
1287 *
1288 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1289 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1290 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1291 * \param level as passed to glTexImage
1292 * \param internalFormat as passed to glTexImage
1293 * \param format as passed to glTexImage
1294 * \param type as passed to glTexImage
1295 * \param width as passed to glTexImage
1296 * \param height as passed to glTexImage
1297 * \param depth as passed to glTexImage
1298 * \param border as passed to glTexImage
1299 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1300 */
1301 GLboolean
1302 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1303 GLint internalFormat, GLenum format, GLenum type,
1304 GLint width, GLint height, GLint depth, GLint border)
1305 {
1306 GLint maxSize;
1307
1308 (void) internalFormat;
1309 (void) format;
1310 (void) type;
1311
1312 switch (target) {
1313 case GL_PROXY_TEXTURE_1D:
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 level >= ctx->Const.MaxTextureLevels) {
1319 /* bad width or level */
1320 return GL_FALSE;
1321 }
1322 return GL_TRUE;
1323 case GL_PROXY_TEXTURE_2D:
1324 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1325 if (width < 2 * border || width > 2 + maxSize ||
1326 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1327 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1328 height < 2 * border || height > 2 + maxSize ||
1329 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1330 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1331 level >= ctx->Const.MaxTextureLevels) {
1332 /* bad width or height or level */
1333 return GL_FALSE;
1334 }
1335 return GL_TRUE;
1336 case GL_PROXY_TEXTURE_3D:
1337 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1338 if (width < 2 * border || width > 2 + maxSize ||
1339 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1340 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1341 height < 2 * border || height > 2 + maxSize ||
1342 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1343 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1344 depth < 2 * border || depth > 2 + maxSize ||
1345 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1346 depth > 0 && _mesa_bitcount(depth - 2 * border) != 1) ||
1347 level >= ctx->Const.Max3DTextureLevels) {
1348 /* bad width or height or depth or level */
1349 return GL_FALSE;
1350 }
1351 return GL_TRUE;
1352 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1353 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1354 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1355 level != 0) {
1356 /* bad width or height or level */
1357 return GL_FALSE;
1358 }
1359 return GL_TRUE;
1360 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1361 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1362 if (width < 2 * border || width > 2 + maxSize ||
1363 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1364 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1365 height < 2 * border || height > 2 + maxSize ||
1366 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1367 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1368 level >= ctx->Const.MaxCubeTextureLevels) {
1369 /* bad width or height */
1370 return GL_FALSE;
1371 }
1372 return GL_TRUE;
1373 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1374 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1375 if (width < 2 * border || width > 2 + maxSize ||
1376 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1377 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1378 level >= ctx->Const.MaxTextureLevels) {
1379 /* bad width or level */
1380 return GL_FALSE;
1381 }
1382
1383 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1384 return GL_FALSE;
1385 }
1386 return GL_TRUE;
1387 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1388 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1389 if (width < 2 * border || width > 2 + maxSize ||
1390 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1391 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1392 height < 2 * border || height > 2 + maxSize ||
1393 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1394 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1395 level >= ctx->Const.MaxTextureLevels) {
1396 /* bad width or height or level */
1397 return GL_FALSE;
1398 }
1399 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1400 return GL_FALSE;
1401 }
1402 return GL_TRUE;
1403 default:
1404 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1405 return GL_FALSE;
1406 }
1407 }
1408
1409
1410 /**
1411 * Helper function to determine whether a target supports compressed textures
1412 */
1413 static GLboolean
1414 target_can_be_compressed(GLcontext *ctx, GLenum target)
1415 {
1416 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1417 || ((ctx->Extensions.ARB_texture_cube_map &&
1418 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1419 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1420 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1421 || ((ctx->Extensions.MESA_texture_array &&
1422 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1423 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1424 }
1425
1426
1427 /**
1428 * Test the glTexImage[123]D() parameters for errors.
1429 *
1430 * \param ctx GL context.
1431 * \param target texture target given by the user.
1432 * \param level image level given by the user.
1433 * \param internalFormat internal format given by the user.
1434 * \param format pixel data format given by the user.
1435 * \param type pixel data type given by the user.
1436 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1437 * \param width image width given by the user.
1438 * \param height image height given by the user.
1439 * \param depth image depth given by the user.
1440 * \param border image border given by the user.
1441 *
1442 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1443 *
1444 * Verifies each of the parameters against the constants specified in
1445 * __GLcontextRec::Const and the supported extensions, and according to the
1446 * OpenGL specification.
1447 */
1448 static GLboolean
1449 texture_error_check( GLcontext *ctx, GLenum target,
1450 GLint level, GLint internalFormat,
1451 GLenum format, GLenum type,
1452 GLuint dimensions,
1453 GLint width, GLint height,
1454 GLint depth, GLint border )
1455 {
1456 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1457 GLboolean sizeOK = GL_TRUE;
1458 GLboolean colorFormat, indexFormat;
1459 GLenum proxy_target;
1460
1461 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1462 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1463 if (!isProxy) {
1464 _mesa_error(ctx, GL_INVALID_VALUE,
1465 "glTexImage%dD(level=%d)", dimensions, level);
1466 }
1467 return GL_TRUE;
1468 }
1469
1470 /* Check border */
1471 if (border < 0 || border > 1 ||
1472 ((target == GL_TEXTURE_RECTANGLE_NV ||
1473 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1474 if (!isProxy) {
1475 _mesa_error(ctx, GL_INVALID_VALUE,
1476 "glTexImage%dD(border=%d)", dimensions, border);
1477 }
1478 return GL_TRUE;
1479 }
1480
1481 if (width < 0 || height < 0 || depth < 0) {
1482 if (!isProxy) {
1483 _mesa_error(ctx, GL_INVALID_VALUE,
1484 "glTexImage%dD(width, height or depth < 0)", dimensions);
1485 }
1486 return GL_TRUE;
1487 }
1488
1489 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1490 * level, width, height and depth.
1491 */
1492 if (dimensions == 1) {
1493 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1494 proxy_target = GL_PROXY_TEXTURE_1D;
1495 height = 1;
1496 depth = 1;
1497 }
1498 else {
1499 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1500 return GL_TRUE;
1501 }
1502 }
1503 else if (dimensions == 2) {
1504 depth = 1;
1505 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1506 proxy_target = GL_PROXY_TEXTURE_2D;
1507 }
1508 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1509 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1510 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1511 if (!ctx->Extensions.ARB_texture_cube_map) {
1512 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1513 return GL_TRUE;
1514 }
1515 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1516 sizeOK = (width == height);
1517 }
1518 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1519 target == GL_TEXTURE_RECTANGLE_NV) {
1520 if (!ctx->Extensions.NV_texture_rectangle) {
1521 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1522 return GL_TRUE;
1523 }
1524 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1525 }
1526 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1527 target == GL_TEXTURE_1D_ARRAY_EXT) {
1528 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1529 }
1530 else {
1531 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1532 return GL_TRUE;
1533 }
1534 }
1535 else if (dimensions == 3) {
1536 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1537 proxy_target = GL_PROXY_TEXTURE_3D;
1538 }
1539 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1540 target == GL_TEXTURE_2D_ARRAY_EXT) {
1541 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1542 }
1543 else {
1544 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1545 return GL_TRUE;
1546 }
1547 }
1548 else {
1549 _mesa_problem( ctx, "bad dims in texture_error_check" );
1550 return GL_TRUE;
1551 }
1552
1553 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1554 internalFormat, format,
1555 type, width, height,
1556 depth, border);
1557 if (!sizeOK) {
1558 if (!isProxy) {
1559 _mesa_error(ctx, GL_INVALID_VALUE,
1560 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1561 dimensions, level, width, height, depth);
1562 }
1563 return GL_TRUE;
1564 }
1565
1566 /* Check internalFormat */
1567 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1568 if (!isProxy) {
1569 _mesa_error(ctx, GL_INVALID_VALUE,
1570 "glTexImage%dD(internalFormat=0x%x)",
1571 dimensions, internalFormat);
1572 }
1573 return GL_TRUE;
1574 }
1575
1576 /* Check incoming image format and type */
1577 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1578 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1579 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1580 */
1581 if (!isProxy) {
1582 _mesa_error(ctx, GL_INVALID_OPERATION,
1583 "glTexImage%dD(format or type)", dimensions);
1584 }
1585 return GL_TRUE;
1586 }
1587
1588 /* make sure internal format and format basically agree */
1589 colorFormat = is_color_format(format);
1590 indexFormat = is_index_format(format);
1591 if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1592 (is_index_format(internalFormat) && !indexFormat) ||
1593 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1594 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1595 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
1596 if (!isProxy)
1597 _mesa_error(ctx, GL_INVALID_OPERATION,
1598 "glTexImage(internalFormat/format)");
1599 return GL_TRUE;
1600 }
1601
1602 /* additional checks for ycbcr textures */
1603 if (internalFormat == GL_YCBCR_MESA) {
1604 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1605 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1606 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1607 char message[100];
1608 _mesa_sprintf(message,
1609 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1610 _mesa_error(ctx, GL_INVALID_ENUM, message);
1611 return GL_TRUE; /* error */
1612 }
1613 if (target != GL_TEXTURE_2D &&
1614 target != GL_PROXY_TEXTURE_2D &&
1615 target != GL_TEXTURE_RECTANGLE_NV &&
1616 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1617 if (!isProxy)
1618 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1619 return GL_TRUE;
1620 }
1621 if (border != 0) {
1622 if (!isProxy) {
1623 char message[100];
1624 _mesa_sprintf(message,
1625 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1626 dimensions, border);
1627 _mesa_error(ctx, GL_INVALID_VALUE, message);
1628 }
1629 return GL_TRUE;
1630 }
1631 }
1632
1633 /* additional checks for depth textures */
1634 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1635 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1636 if (target != GL_TEXTURE_1D &&
1637 target != GL_PROXY_TEXTURE_1D &&
1638 target != GL_TEXTURE_2D &&
1639 target != GL_PROXY_TEXTURE_2D &&
1640 target != GL_TEXTURE_RECTANGLE_ARB &&
1641 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1642 if (!isProxy)
1643 _mesa_error(ctx, GL_INVALID_ENUM,
1644 "glTexImage(target/internalFormat)");
1645 return GL_TRUE;
1646 }
1647 }
1648
1649 /* additional checks for compressed textures */
1650 if (is_compressed_format(ctx, internalFormat)) {
1651 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1652 _mesa_error(ctx, GL_INVALID_ENUM,
1653 "glTexImage%d(target)", dimensions);
1654 return GL_TRUE;
1655 }
1656 if (border != 0) {
1657 if (!isProxy) {
1658 _mesa_error(ctx, GL_INVALID_OPERATION,
1659 "glTexImage%D(border!=0)", dimensions);
1660 }
1661 return GL_TRUE;
1662 }
1663 }
1664
1665 /* if we get here, the parameters are OK */
1666 return GL_FALSE;
1667 }
1668
1669
1670 /**
1671 * Test glTexSubImage[123]D() parameters for errors.
1672 *
1673 * \param ctx GL context.
1674 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1675 * \param target texture target given by the user.
1676 * \param level image level given by the user.
1677 * \param xoffset sub-image x offset given by the user.
1678 * \param yoffset sub-image y offset given by the user.
1679 * \param zoffset sub-image z offset given by the user.
1680 * \param format pixel data format given by the user.
1681 * \param type pixel data type given by the user.
1682 * \param width image width given by the user.
1683 * \param height image height given by the user.
1684 * \param depth image depth given by the user.
1685 *
1686 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1687 *
1688 * Verifies each of the parameters against the constants specified in
1689 * __GLcontextRec::Const and the supported extensions, and according to the
1690 * OpenGL specification.
1691 */
1692 static GLboolean
1693 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1694 GLenum target, GLint level,
1695 GLint xoffset, GLint yoffset, GLint zoffset,
1696 GLint width, GLint height, GLint depth,
1697 GLenum format, GLenum type )
1698 {
1699 /* Check target */
1700 if (dimensions == 1) {
1701 if (target != GL_TEXTURE_1D) {
1702 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1703 return GL_TRUE;
1704 }
1705 }
1706 else if (dimensions == 2) {
1707 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1708 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1709 if (!ctx->Extensions.ARB_texture_cube_map) {
1710 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1711 return GL_TRUE;
1712 }
1713 }
1714 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1715 if (!ctx->Extensions.NV_texture_rectangle) {
1716 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1717 return GL_TRUE;
1718 }
1719 }
1720 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1721 if (!ctx->Extensions.MESA_texture_array) {
1722 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1723 return GL_TRUE;
1724 }
1725 }
1726 else if (target != GL_TEXTURE_2D) {
1727 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1728 return GL_TRUE;
1729 }
1730 }
1731 else if (dimensions == 3) {
1732 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1733 if (!ctx->Extensions.MESA_texture_array) {
1734 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1735 return GL_TRUE;
1736 }
1737 }
1738 else if (target != GL_TEXTURE_3D) {
1739 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1740 return GL_TRUE;
1741 }
1742 }
1743 else {
1744 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1745 return GL_TRUE;
1746 }
1747
1748 /* Basic level check */
1749 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1750 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1751 return GL_TRUE;
1752 }
1753
1754 if (width < 0) {
1755 _mesa_error(ctx, GL_INVALID_VALUE,
1756 "glTexSubImage%dD(width=%d)", dimensions, width);
1757 return GL_TRUE;
1758 }
1759 if (height < 0 && dimensions > 1) {
1760 _mesa_error(ctx, GL_INVALID_VALUE,
1761 "glTexSubImage%dD(height=%d)", dimensions, height);
1762 return GL_TRUE;
1763 }
1764 if (depth < 0 && dimensions > 2) {
1765 _mesa_error(ctx, GL_INVALID_VALUE,
1766 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1767 return GL_TRUE;
1768 }
1769
1770 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1771 _mesa_error(ctx, GL_INVALID_ENUM,
1772 "glTexSubImage%dD(format or type)", dimensions);
1773 return GL_TRUE;
1774 }
1775
1776 return GL_FALSE;
1777 }
1778
1779 static GLboolean
1780 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1781 GLenum target, GLint level,
1782 GLint xoffset, GLint yoffset, GLint zoffset,
1783 GLint width, GLint height, GLint depth,
1784 GLenum format, GLenum type,
1785 const struct gl_texture_image *destTex )
1786 {
1787 if (!destTex) {
1788 /* undefined image level */
1789 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1790 return GL_TRUE;
1791 }
1792
1793 if (xoffset < -((GLint)destTex->Border)) {
1794 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1795 dimensions);
1796 return GL_TRUE;
1797 }
1798 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1799 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1800 dimensions);
1801 return GL_TRUE;
1802 }
1803 if (dimensions > 1) {
1804 if (yoffset < -((GLint)destTex->Border)) {
1805 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1806 dimensions);
1807 return GL_TRUE;
1808 }
1809 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1810 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1811 dimensions);
1812 return GL_TRUE;
1813 }
1814 }
1815 if (dimensions > 2) {
1816 if (zoffset < -((GLint)destTex->Border)) {
1817 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1818 return GL_TRUE;
1819 }
1820 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1821 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1822 return GL_TRUE;
1823 }
1824 }
1825
1826 #if FEATURE_EXT_texture_sRGB
1827 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1828 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1829 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1830 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1831 if ((width & 0x3) || (height & 0x3) ||
1832 (xoffset & 0x3) || (yoffset & 0x3))
1833 _mesa_error(ctx, GL_INVALID_OPERATION,
1834 "glTexSubImage%dD(size or offset not multiple of 4)",
1835 dimensions);
1836 return GL_TRUE;
1837 }
1838 #endif
1839
1840 if (destTex->IsCompressed) {
1841 if (!target_can_be_compressed(ctx, target)) {
1842 _mesa_error(ctx, GL_INVALID_ENUM,
1843 "glTexSubImage%D(target)", dimensions);
1844 return GL_TRUE;
1845 }
1846 /* offset must be multiple of 4 */
1847 if ((xoffset & 3) || (yoffset & 3)) {
1848 _mesa_error(ctx, GL_INVALID_OPERATION,
1849 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1850 return GL_TRUE;
1851 }
1852 /* size must be multiple of 4 or equal to whole texture size */
1853 if ((width & 3) && (GLuint) width != destTex->Width) {
1854 _mesa_error(ctx, GL_INVALID_OPERATION,
1855 "glTexSubImage%D(width)", dimensions);
1856 return GL_TRUE;
1857 }
1858 if ((height & 3) && (GLuint) height != destTex->Height) {
1859 _mesa_error(ctx, GL_INVALID_OPERATION,
1860 "glTexSubImage%D(width)", dimensions);
1861 return GL_TRUE;
1862 }
1863 }
1864
1865 return GL_FALSE;
1866 }
1867
1868
1869 /**
1870 * Test glCopyTexImage[12]D() parameters for errors.
1871 *
1872 * \param ctx GL context.
1873 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1874 * \param target texture target given by the user.
1875 * \param level image level given by the user.
1876 * \param internalFormat internal format given by the user.
1877 * \param width image width given by the user.
1878 * \param height image height given by the user.
1879 * \param depth image depth given by the user.
1880 * \param border texture border.
1881 *
1882 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1883 *
1884 * Verifies each of the parameters against the constants specified in
1885 * __GLcontextRec::Const and the supported extensions, and according to the
1886 * OpenGL specification.
1887 */
1888 static GLboolean
1889 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1890 GLenum target, GLint level, GLint internalFormat,
1891 GLint width, GLint height, GLint border )
1892 {
1893 GLenum type;
1894 GLboolean sizeOK;
1895 GLint format;
1896
1897 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1898 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1899 _mesa_error(ctx, GL_INVALID_VALUE,
1900 "glCopyTexImage%dD(level=%d)", dimensions, level);
1901 return GL_TRUE;
1902 }
1903
1904 /* Check that the source buffer is complete */
1905 if (ctx->ReadBuffer->Name) {
1906 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1907 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1908 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1909 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1910 return GL_TRUE;
1911 }
1912 }
1913
1914 /* Check border */
1915 if (border < 0 || border > 1 ||
1916 ((target == GL_TEXTURE_RECTANGLE_NV ||
1917 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1918 return GL_TRUE;
1919 }
1920
1921 format = _mesa_base_tex_format(ctx, internalFormat);
1922 if (format < 0) {
1923 _mesa_error(ctx, GL_INVALID_VALUE,
1924 "glCopyTexImage%dD(internalFormat)", dimensions);
1925 return GL_TRUE;
1926 }
1927
1928 /* NOTE: the format and type aren't really significant for
1929 * TestProxyTexImage(). Only the internalformat really matters.
1930 if (!_mesa_source_buffer_exists(ctx, format)) {
1931 _mesa_error(ctx, GL_INVALID_OPERATION,
1932 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1933 return GL_TRUE;
1934 }
1935
1936 */
1937 type = GL_FLOAT;
1938
1939 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1940 * level, width, height and depth.
1941 */
1942 if (dimensions == 1) {
1943 if (target == GL_TEXTURE_1D) {
1944 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1945 level, internalFormat,
1946 format, type,
1947 width, 1, 1, border);
1948 }
1949 else {
1950 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1951 return GL_TRUE;
1952 }
1953 }
1954 else if (dimensions == 2) {
1955 if (target == GL_TEXTURE_2D) {
1956 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1957 level, internalFormat,
1958 format, type,
1959 width, height, 1, border);
1960 }
1961 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1962 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1963 if (!ctx->Extensions.ARB_texture_cube_map) {
1964 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1965 return GL_TRUE;
1966 }
1967 sizeOK = (width == height) &&
1968 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1969 level, internalFormat, format, type,
1970 width, height, 1, border);
1971 }
1972 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1973 if (!ctx->Extensions.NV_texture_rectangle) {
1974 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1975 return GL_TRUE;
1976 }
1977 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1978 GL_PROXY_TEXTURE_RECTANGLE_NV,
1979 level, internalFormat,
1980 format, type,
1981 width, height, 1, border);
1982 }
1983 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1984 if (!ctx->Extensions.MESA_texture_array) {
1985 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1986 return GL_TRUE;
1987 }
1988 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1989 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1990 level, internalFormat,
1991 format, type,
1992 width, height, 1, border);
1993 }
1994 else {
1995 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1996 return GL_TRUE;
1997 }
1998 }
1999 else {
2000 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
2001 return GL_TRUE;
2002 }
2003
2004 if (!sizeOK) {
2005 if (dimensions == 1) {
2006 _mesa_error(ctx, GL_INVALID_VALUE,
2007 "glCopyTexImage1D(width=%d)", width);
2008 }
2009 else {
2010 ASSERT(dimensions == 2);
2011 _mesa_error(ctx, GL_INVALID_VALUE,
2012 "glCopyTexImage2D(width=%d, height=%d)", width, height);
2013 }
2014 return GL_TRUE;
2015 }
2016
2017 if (is_compressed_format(ctx, internalFormat)) {
2018 if (target != GL_TEXTURE_2D) {
2019 _mesa_error(ctx, GL_INVALID_ENUM,
2020 "glCopyTexImage%d(target)", dimensions);
2021 return GL_TRUE;
2022 }
2023 if (border != 0) {
2024 _mesa_error(ctx, GL_INVALID_OPERATION,
2025 "glCopyTexImage%D(border!=0)", dimensions);
2026 return GL_TRUE;
2027 }
2028 }
2029 else if (is_depth_format(internalFormat)) {
2030 /* make sure we have depth/stencil buffers */
2031 if (!ctx->ReadBuffer->_DepthBuffer) {
2032 _mesa_error(ctx, GL_INVALID_OPERATION,
2033 "glCopyTexImage%D(no depth)", dimensions);
2034 return GL_TRUE;
2035 }
2036 }
2037 else if (is_depthstencil_format(internalFormat)) {
2038 /* make sure we have depth/stencil buffers */
2039 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2040 _mesa_error(ctx, GL_INVALID_OPERATION,
2041 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
2042 return GL_TRUE;
2043 }
2044 }
2045
2046 /* if we get here, the parameters are OK */
2047 return GL_FALSE;
2048 }
2049
2050
2051 /**
2052 * Test glCopyTexSubImage[12]D() parameters for errors.
2053 *
2054 * \param ctx GL context.
2055 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2056 * \param target texture target given by the user.
2057 * \param level image level given by the user.
2058 * \param xoffset sub-image x offset given by the user.
2059 * \param yoffset sub-image y offset given by the user.
2060 * \param zoffset sub-image z offset given by the user.
2061 * \param width image width given by the user.
2062 * \param height image height given by the user.
2063 *
2064 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2065 *
2066 * Verifies each of the parameters against the constants specified in
2067 * __GLcontextRec::Const and the supported extensions, and according to the
2068 * OpenGL specification.
2069 */
2070 static GLboolean
2071 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
2072 GLenum target, GLint level,
2073 GLint xoffset, GLint yoffset, GLint zoffset,
2074 GLsizei width, GLsizei height)
2075 {
2076 /* Check target */
2077 /* Check that the source buffer is complete */
2078 if (ctx->ReadBuffer->Name) {
2079 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2080 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2081 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2082 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2083 return GL_TRUE;
2084 }
2085 }
2086
2087 if (dimensions == 1) {
2088 if (target != GL_TEXTURE_1D) {
2089 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2090 return GL_TRUE;
2091 }
2092 }
2093 else if (dimensions == 2) {
2094 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2095 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2096 if (!ctx->Extensions.ARB_texture_cube_map) {
2097 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2098 return GL_TRUE;
2099 }
2100 }
2101 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2102 if (!ctx->Extensions.NV_texture_rectangle) {
2103 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2104 return GL_TRUE;
2105 }
2106 }
2107 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2108 if (!ctx->Extensions.MESA_texture_array) {
2109 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2110 return GL_TRUE;
2111 }
2112 }
2113 else if (target != GL_TEXTURE_2D) {
2114 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2115 return GL_TRUE;
2116 }
2117 }
2118 else if (dimensions == 3) {
2119 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2120 (!ctx->Extensions.MESA_texture_array))
2121 && (target != GL_TEXTURE_3D)) {
2122 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2123 return GL_TRUE;
2124 }
2125 }
2126
2127 /* Check level */
2128 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2129 _mesa_error(ctx, GL_INVALID_VALUE,
2130 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2131 return GL_TRUE;
2132 }
2133
2134 /* Check size */
2135 if (width < 0) {
2136 _mesa_error(ctx, GL_INVALID_VALUE,
2137 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2138 return GL_TRUE;
2139 }
2140 if (dimensions > 1 && height < 0) {
2141 _mesa_error(ctx, GL_INVALID_VALUE,
2142 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2143 return GL_TRUE;
2144 }
2145
2146 return GL_FALSE;
2147 }
2148
2149 static GLboolean
2150 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2151 GLenum target, GLint level,
2152 GLint xoffset, GLint yoffset, GLint zoffset,
2153 GLsizei width, GLsizei height,
2154 const struct gl_texture_image *teximage )
2155 {
2156 if (!teximage) {
2157 _mesa_error(ctx, GL_INVALID_OPERATION,
2158 "glCopyTexSubImage%dD(undefined texture level: %d)",
2159 dimensions, level);
2160 return GL_TRUE;
2161 }
2162
2163 if (xoffset < -((GLint)teximage->Border)) {
2164 _mesa_error(ctx, GL_INVALID_VALUE,
2165 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2166 return GL_TRUE;
2167 }
2168 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2169 _mesa_error(ctx, GL_INVALID_VALUE,
2170 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2171 return GL_TRUE;
2172 }
2173 if (dimensions > 1) {
2174 if (yoffset < -((GLint)teximage->Border)) {
2175 _mesa_error(ctx, GL_INVALID_VALUE,
2176 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2177 return GL_TRUE;
2178 }
2179 /* NOTE: we're adding the border here, not subtracting! */
2180 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2181 _mesa_error(ctx, GL_INVALID_VALUE,
2182 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2183 return GL_TRUE;
2184 }
2185 }
2186
2187 if (dimensions > 2) {
2188 if (zoffset < -((GLint)teximage->Border)) {
2189 _mesa_error(ctx, GL_INVALID_VALUE,
2190 "glCopyTexSubImage%dD(zoffset)", dimensions);
2191 return GL_TRUE;
2192 }
2193 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2194 _mesa_error(ctx, GL_INVALID_VALUE,
2195 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2196 return GL_TRUE;
2197 }
2198 }
2199
2200 if (teximage->IsCompressed) {
2201 if (target != GL_TEXTURE_2D) {
2202 _mesa_error(ctx, GL_INVALID_ENUM,
2203 "glCopyTexSubImage%d(target)", dimensions);
2204 return GL_TRUE;
2205 }
2206 /* offset must be multiple of 4 */
2207 if ((xoffset & 3) || (yoffset & 3)) {
2208 _mesa_error(ctx, GL_INVALID_VALUE,
2209 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2210 return GL_TRUE;
2211 }
2212 /* size must be multiple of 4 */
2213 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2214 _mesa_error(ctx, GL_INVALID_VALUE,
2215 "glCopyTexSubImage%D(width)", dimensions);
2216 return GL_TRUE;
2217 }
2218 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2219 _mesa_error(ctx, GL_INVALID_VALUE,
2220 "glCopyTexSubImage%D(height)", dimensions);
2221 return GL_TRUE;
2222 }
2223 }
2224
2225 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2226 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2227 return GL_TRUE;
2228 }
2229
2230 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2231 _mesa_error(ctx, GL_INVALID_OPERATION,
2232 "glCopyTexSubImage%dD(missing readbuffer)", dimensions);
2233 return GL_TRUE;
2234 }
2235
2236 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2237 if (!ctx->ReadBuffer->_DepthBuffer) {
2238 _mesa_error(ctx, GL_INVALID_OPERATION,
2239 "glCopyTexSubImage%D(no depth buffer)",
2240 dimensions);
2241 return GL_TRUE;
2242 }
2243 }
2244 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2245 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2246 _mesa_error(ctx, GL_INVALID_OPERATION,
2247 "glCopyTexSubImage%D(no depth/stencil buffer)",
2248 dimensions);
2249 return GL_TRUE;
2250 }
2251 }
2252
2253 /* if we get here, the parameters are OK */
2254 return GL_FALSE;
2255 }
2256
2257
2258 /**
2259 * Get texture image. Called by glGetTexImage.
2260 *
2261 * \param target texture target.
2262 * \param level image level.
2263 * \param format pixel data format for returned image.
2264 * \param type pixel data type for returned image.
2265 * \param pixels returned pixel data.
2266 */
2267 void GLAPIENTRY
2268 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2269 GLenum type, GLvoid *pixels )
2270 {
2271 const struct gl_texture_unit *texUnit;
2272 struct gl_texture_object *texObj;
2273 struct gl_texture_image *texImage;
2274 GLint maxLevels = 0;
2275 GET_CURRENT_CONTEXT(ctx);
2276 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2277
2278 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2279 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2280 if (!texObj || _mesa_is_proxy_texture(target)) {
2281 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2282 return;
2283 }
2284
2285 maxLevels = _mesa_max_texture_levels(ctx, target);
2286 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2287
2288 if (level < 0 || level >= maxLevels) {
2289 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2290 return;
2291 }
2292
2293 if (_mesa_sizeof_packed_type(type) <= 0) {
2294 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2295 return;
2296 }
2297
2298 if (_mesa_components_in_format(format) <= 0 ||
2299 format == GL_STENCIL_INDEX) {
2300 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2301 return;
2302 }
2303
2304 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2305 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2306 return;
2307 }
2308
2309 if (!ctx->Extensions.SGIX_depth_texture &&
2310 !ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2311 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2312 return;
2313 }
2314
2315 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2316 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2317 return;
2318 }
2319
2320 if (!ctx->Extensions.EXT_packed_depth_stencil
2321 && is_depthstencil_format(format)) {
2322 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2323 return;
2324 }
2325
2326 _mesa_lock_texture(ctx, texObj);
2327 {
2328 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2329 if (!texImage) {
2330 /* invalid mipmap level, not an error */
2331 goto out;
2332 }
2333
2334
2335 /* Make sure the requested image format is compatible with the
2336 * texture's format. Note that a color index texture can be converted
2337 * to RGBA so that combo is allowed.
2338 */
2339 if (is_color_format(format)
2340 && !is_color_format(texImage->TexFormat->BaseFormat)
2341 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2342 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2343 goto out;
2344 }
2345 else if (is_index_format(format)
2346 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2347 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2348 goto out;
2349 }
2350 else if (is_depth_format(format)
2351 && !is_depth_format(texImage->TexFormat->BaseFormat)
2352 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2353 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2354 goto out;
2355 }
2356 else if (is_ycbcr_format(format)
2357 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2358 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2359 goto out;
2360 }
2361 else if (is_depthstencil_format(format)
2362 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2363 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2364 goto out;
2365 }
2366
2367 if (ctx->Pack.BufferObj->Name) {
2368 /* packing texture image into a PBO */
2369 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2370 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2371 texImage->Height, texImage->Depth,
2372 format, type, pixels)) {
2373 _mesa_error(ctx, GL_INVALID_OPERATION,
2374 "glGetTexImage(invalid PBO access)");
2375 goto out;
2376 }
2377 }
2378
2379 /* typically, this will call _mesa_get_teximage() */
2380 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2381 texObj, texImage);
2382
2383 }
2384 out:
2385 _mesa_unlock_texture(ctx, texObj);
2386 }
2387
2388
2389
2390 /**
2391 * Check if the given texture image is bound to any framebuffer objects
2392 * and update/invalidate them.
2393 * XXX We're only checking the currently bound framebuffer object for now.
2394 * In the future, perhaps struct gl_texture_image should have a pointer (or
2395 * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
2396 */
2397 static void
2398 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2399 GLuint face, GLuint level)
2400 {
2401 if (ctx->DrawBuffer->Name) {
2402 GLuint i;
2403 for (i = 0; i < BUFFER_COUNT; i++) {
2404 struct gl_renderbuffer_attachment *att =
2405 ctx->DrawBuffer->Attachment + i;
2406 if (att->Type == GL_TEXTURE &&
2407 att->Texture == texObj &&
2408 att->TextureLevel == level &&
2409 att->CubeMapFace == face) {
2410 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2411 /* Tell driver about the new renderbuffer texture */
2412 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2413 }
2414 }
2415 }
2416 }
2417
2418
2419
2420 /*
2421 * Called from the API. Note that width includes the border.
2422 */
2423 void GLAPIENTRY
2424 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2425 GLsizei width, GLint border, GLenum format,
2426 GLenum type, const GLvoid *pixels )
2427 {
2428 GLsizei postConvWidth = width;
2429 GET_CURRENT_CONTEXT(ctx);
2430 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2431
2432 if (is_color_format(internalFormat)) {
2433 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2434 }
2435
2436 if (target == GL_TEXTURE_1D) {
2437 /* non-proxy target */
2438 struct gl_texture_unit *texUnit;
2439 struct gl_texture_object *texObj;
2440 struct gl_texture_image *texImage;
2441 const GLuint face = _mesa_tex_target_to_face(target);
2442
2443 if (texture_error_check(ctx, target, level, internalFormat,
2444 format, type, 1, postConvWidth, 1, 1, border)) {
2445 return; /* error was recorded */
2446 }
2447
2448 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2449 _mesa_update_state(ctx);
2450
2451 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2452 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2453 _mesa_lock_texture(ctx, texObj);
2454 {
2455 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2456 if (!texImage) {
2457 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2458 goto out;
2459 }
2460
2461 if (texImage->Data) {
2462 ctx->Driver.FreeTexImageData( ctx, texImage );
2463 }
2464
2465 ASSERT(texImage->Data == NULL);
2466
2467 clear_teximage_fields(texImage); /* not really needed, but helpful */
2468 _mesa_init_teximage_fields(ctx, target, texImage,
2469 postConvWidth, 1, 1,
2470 border, internalFormat);
2471
2472 ASSERT(ctx->Driver.TexImage1D);
2473
2474 /* Give the texture to the driver! <pixels> may be null! */
2475 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2476 width, border, format, type, pixels,
2477 &ctx->Unpack, texObj, texImage);
2478
2479 ASSERT(texImage->TexFormat);
2480
2481 update_fbo_texture(ctx, texObj, face, level);
2482
2483 /* state update */
2484 texObj->_Complete = GL_FALSE;
2485 ctx->NewState |= _NEW_TEXTURE;
2486 }
2487 out:
2488 _mesa_unlock_texture(ctx, texObj);
2489 }
2490 else if (target == GL_PROXY_TEXTURE_1D) {
2491 /* Proxy texture: check for errors and update proxy state */
2492 struct gl_texture_image *texImage;
2493 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2494 if (texture_error_check(ctx, target, level, internalFormat,
2495 format, type, 1, postConvWidth, 1, 1, border)) {
2496 /* when error, clear all proxy texture image parameters */
2497 if (texImage)
2498 clear_teximage_fields(texImage);
2499 }
2500 else {
2501 /* no error, set the tex image parameters */
2502 ASSERT(texImage);
2503 _mesa_init_teximage_fields(ctx, target, texImage,
2504 postConvWidth, 1, 1,
2505 border, internalFormat);
2506 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2507 internalFormat, format, type);
2508 }
2509 }
2510 else {
2511 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2512 return;
2513 }
2514 }
2515
2516
2517 void GLAPIENTRY
2518 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2519 GLsizei width, GLsizei height, GLint border,
2520 GLenum format, GLenum type,
2521 const GLvoid *pixels )
2522 {
2523 GLsizei postConvWidth = width, postConvHeight = height;
2524 GET_CURRENT_CONTEXT(ctx);
2525 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2526
2527 if (is_color_format(internalFormat)) {
2528 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2529 &postConvHeight);
2530 }
2531
2532 if (target == GL_TEXTURE_2D ||
2533 (ctx->Extensions.ARB_texture_cube_map &&
2534 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2535 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2536 (ctx->Extensions.NV_texture_rectangle &&
2537 target == GL_TEXTURE_RECTANGLE_NV) ||
2538 (ctx->Extensions.MESA_texture_array &&
2539 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2540 /* non-proxy target */
2541 struct gl_texture_unit *texUnit;
2542 struct gl_texture_object *texObj;
2543 struct gl_texture_image *texImage;
2544 const GLuint face = _mesa_tex_target_to_face(target);
2545
2546 if (texture_error_check(ctx, target, level, internalFormat,
2547 format, type, 2, postConvWidth, postConvHeight,
2548 1, border)) {
2549 return; /* error was recorded */
2550 }
2551
2552 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2553 _mesa_update_state(ctx);
2554
2555 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2556 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2557 _mesa_lock_texture(ctx, texObj);
2558 {
2559 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2560 if (!texImage) {
2561 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2562 goto out;
2563 }
2564
2565 if (texImage->Data) {
2566 ctx->Driver.FreeTexImageData( ctx, texImage );
2567 }
2568
2569 ASSERT(texImage->Data == NULL);
2570 clear_teximage_fields(texImage); /* not really needed, but helpful */
2571 _mesa_init_teximage_fields(ctx, target, texImage,
2572 postConvWidth, postConvHeight, 1,
2573 border, internalFormat);
2574
2575 ASSERT(ctx->Driver.TexImage2D);
2576
2577 /* Give the texture to the driver! <pixels> may be null! */
2578 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2579 width, height, border, format, type, pixels,
2580 &ctx->Unpack, texObj, texImage);
2581
2582 ASSERT(texImage->TexFormat);
2583
2584 update_fbo_texture(ctx, texObj, face, level);
2585
2586 /* state update */
2587 texObj->_Complete = GL_FALSE;
2588 ctx->NewState |= _NEW_TEXTURE;
2589 }
2590 out:
2591 _mesa_unlock_texture(ctx, texObj);
2592 }
2593 else if (target == GL_PROXY_TEXTURE_2D ||
2594 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2595 ctx->Extensions.ARB_texture_cube_map) ||
2596 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2597 ctx->Extensions.NV_texture_rectangle) ||
2598 (ctx->Extensions.MESA_texture_array &&
2599 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2600 /* Proxy texture: check for errors and update proxy state */
2601 struct gl_texture_image *texImage;
2602 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2603 if (texture_error_check(ctx, target, level, internalFormat,
2604 format, type, 2, postConvWidth, postConvHeight,
2605 1, border)) {
2606 /* when error, clear all proxy texture image parameters */
2607 if (texImage)
2608 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2609 }
2610 else {
2611 /* no error, set the tex image parameters */
2612 _mesa_init_teximage_fields(ctx, target, texImage,
2613 postConvWidth, postConvHeight, 1,
2614 border, internalFormat);
2615 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2616 internalFormat, format, type);
2617 }
2618 }
2619 else {
2620 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2621 return;
2622 }
2623 }
2624
2625
2626 /*
2627 * Called by the API or display list executor.
2628 * Note that width and height include the border.
2629 */
2630 void GLAPIENTRY
2631 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2632 GLsizei width, GLsizei height, GLsizei depth,
2633 GLint border, GLenum format, GLenum type,
2634 const GLvoid *pixels )
2635 {
2636 GET_CURRENT_CONTEXT(ctx);
2637 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2638
2639 if (target == GL_TEXTURE_3D ||
2640 (ctx->Extensions.MESA_texture_array &&
2641 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2642 /* non-proxy target */
2643 struct gl_texture_unit *texUnit;
2644 struct gl_texture_object *texObj;
2645 struct gl_texture_image *texImage;
2646 const GLuint face = _mesa_tex_target_to_face(target);
2647
2648 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2649 format, type, 3, width, height, depth, border)) {
2650 return; /* error was recorded */
2651 }
2652
2653 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2654 _mesa_update_state(ctx);
2655
2656 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2657 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2658 _mesa_lock_texture(ctx, texObj);
2659 {
2660 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2661 if (!texImage) {
2662 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2663 goto out;
2664 }
2665
2666 if (texImage->Data) {
2667 ctx->Driver.FreeTexImageData( ctx, texImage );
2668 }
2669
2670 ASSERT(texImage->Data == NULL);
2671 clear_teximage_fields(texImage); /* not really needed, but helpful */
2672 _mesa_init_teximage_fields(ctx, target, texImage,
2673 width, height, depth,
2674 border, internalFormat);
2675
2676 ASSERT(ctx->Driver.TexImage3D);
2677
2678 /* Give the texture to the driver! <pixels> may be null! */
2679 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2680 width, height, depth, border, format, type,
2681 pixels, &ctx->Unpack, texObj, texImage);
2682
2683 ASSERT(texImage->TexFormat);
2684
2685 update_fbo_texture(ctx, texObj, face, level);
2686
2687 /* state update */
2688 texObj->_Complete = GL_FALSE;
2689 ctx->NewState |= _NEW_TEXTURE;
2690 }
2691 out:
2692 _mesa_unlock_texture(ctx, texObj);
2693 }
2694 else if (target == GL_PROXY_TEXTURE_3D ||
2695 (ctx->Extensions.MESA_texture_array &&
2696 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2697 /* Proxy texture: check for errors and update proxy state */
2698 struct gl_texture_image *texImage;
2699 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2700 if (texture_error_check(ctx, target, level, internalFormat,
2701 format, type, 3, width, height, depth, border)) {
2702 /* when error, clear all proxy texture image parameters */
2703 if (texImage)
2704 clear_teximage_fields(texImage);
2705 }
2706 else {
2707 /* no error, set the tex image parameters */
2708 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2709 border, internalFormat);
2710 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2711 internalFormat, format, type);
2712 }
2713 }
2714 else {
2715 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2716 return;
2717 }
2718 }
2719
2720
2721 void GLAPIENTRY
2722 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2723 GLsizei width, GLsizei height, GLsizei depth,
2724 GLint border, GLenum format, GLenum type,
2725 const GLvoid *pixels )
2726 {
2727 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2728 depth, border, format, type, pixels);
2729 }
2730
2731
2732
2733 void GLAPIENTRY
2734 _mesa_TexSubImage1D( GLenum target, GLint level,
2735 GLint xoffset, GLsizei width,
2736 GLenum format, GLenum type,
2737 const GLvoid *pixels )
2738 {
2739 GLsizei postConvWidth = width;
2740 struct gl_texture_unit *texUnit;
2741 struct gl_texture_object *texObj;
2742 struct gl_texture_image *texImage = NULL;
2743 GET_CURRENT_CONTEXT(ctx);
2744 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2745
2746 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2747 _mesa_update_state(ctx);
2748
2749 /* XXX should test internal format */
2750 if (is_color_format(format)) {
2751 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2752 }
2753
2754 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2755 postConvWidth, 1, 1, format, type)) {
2756 return; /* error was detected */
2757 }
2758
2759
2760 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2761 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2762 assert(texObj);
2763
2764 _mesa_lock_texture(ctx, texObj);
2765 {
2766 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2767
2768 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2769 postConvWidth, 1, 1, format, type, texImage)) {
2770 goto out; /* error was detected */
2771 }
2772
2773 if (width == 0)
2774 goto out; /* no-op, not an error */
2775
2776 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2777 xoffset += texImage->Border;
2778
2779 ASSERT(ctx->Driver.TexSubImage1D);
2780 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2781 format, type, pixels, &ctx->Unpack,
2782 texObj, texImage);
2783 ctx->NewState |= _NEW_TEXTURE;
2784 }
2785 out:
2786 _mesa_unlock_texture(ctx, texObj);
2787 }
2788
2789
2790 void GLAPIENTRY
2791 _mesa_TexSubImage2D( GLenum target, GLint level,
2792 GLint xoffset, GLint yoffset,
2793 GLsizei width, GLsizei height,
2794 GLenum format, GLenum type,
2795 const GLvoid *pixels )
2796 {
2797 GLsizei postConvWidth = width, postConvHeight = height;
2798 struct gl_texture_unit *texUnit;
2799 struct gl_texture_object *texObj;
2800 struct gl_texture_image *texImage;
2801 GET_CURRENT_CONTEXT(ctx);
2802 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2803
2804 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2805 _mesa_update_state(ctx);
2806
2807 /* XXX should test internal format */
2808 if (is_color_format(format)) {
2809 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2810 &postConvHeight);
2811 }
2812
2813 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2814 postConvWidth, postConvHeight, 1, format, type)) {
2815 return; /* error was detected */
2816 }
2817
2818 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2819 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2820 _mesa_lock_texture(ctx, texObj);
2821 {
2822 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2823
2824 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2825 postConvWidth, postConvHeight, 1, format, type,
2826 texImage)) {
2827 goto out; /* error was detected */
2828 }
2829
2830 if (width == 0 || height == 0)
2831 goto out; /* no-op, not an error */
2832
2833 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2834 xoffset += texImage->Border;
2835 yoffset += texImage->Border;
2836
2837 ASSERT(ctx->Driver.TexSubImage2D);
2838 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2839 width, height, format, type, pixels,
2840 &ctx->Unpack, texObj, texImage);
2841 ctx->NewState |= _NEW_TEXTURE;
2842 }
2843 out:
2844 _mesa_unlock_texture(ctx, texObj);
2845 }
2846
2847
2848
2849 void GLAPIENTRY
2850 _mesa_TexSubImage3D( GLenum target, GLint level,
2851 GLint xoffset, GLint yoffset, GLint zoffset,
2852 GLsizei width, GLsizei height, GLsizei depth,
2853 GLenum format, GLenum type,
2854 const GLvoid *pixels )
2855 {
2856 struct gl_texture_unit *texUnit;
2857 struct gl_texture_object *texObj;
2858 struct gl_texture_image *texImage;
2859 GET_CURRENT_CONTEXT(ctx);
2860 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2861
2862 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2863 _mesa_update_state(ctx);
2864
2865 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2866 width, height, depth, format, type)) {
2867 return; /* error was detected */
2868 }
2869
2870 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2871 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2872
2873 _mesa_lock_texture(ctx, texObj);
2874 {
2875 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2876
2877 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2878 width, height, depth, format, type, texImage)) {
2879 goto out; /* error was detected */
2880 }
2881
2882 if (width == 0 || height == 0 || height == 0)
2883 goto out; /* no-op, not an error */
2884
2885 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2886 xoffset += texImage->Border;
2887 yoffset += texImage->Border;
2888 zoffset += texImage->Border;
2889
2890 ASSERT(ctx->Driver.TexSubImage3D);
2891 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2892 xoffset, yoffset, zoffset,
2893 width, height, depth,
2894 format, type, pixels,
2895 &ctx->Unpack, texObj, texImage );
2896 ctx->NewState |= _NEW_TEXTURE;
2897 }
2898 out:
2899 _mesa_unlock_texture(ctx, texObj);
2900 }
2901
2902
2903
2904 void GLAPIENTRY
2905 _mesa_CopyTexImage1D( GLenum target, GLint level,
2906 GLenum internalFormat,
2907 GLint x, GLint y,
2908 GLsizei width, GLint border )
2909 {
2910 struct gl_texture_unit *texUnit;
2911 struct gl_texture_object *texObj;
2912 struct gl_texture_image *texImage;
2913 GLsizei postConvWidth = width;
2914 const GLuint face = _mesa_tex_target_to_face(target);
2915 GET_CURRENT_CONTEXT(ctx);
2916 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2917
2918 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2919 _mesa_update_state(ctx);
2920
2921 if (is_color_format(internalFormat)) {
2922 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2923 }
2924
2925 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2926 postConvWidth, 1, border))
2927 return;
2928
2929 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2930 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2931 _mesa_lock_texture(ctx, texObj);
2932 {
2933 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2934 if (!texImage) {
2935 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2936 goto out;
2937 }
2938
2939 if (texImage->Data) {
2940 ctx->Driver.FreeTexImageData( ctx, texImage );
2941 }
2942
2943 ASSERT(texImage->Data == NULL);
2944
2945 clear_teximage_fields(texImage); /* not really needed, but helpful */
2946 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2947 border, internalFormat);
2948
2949
2950 ASSERT(ctx->Driver.CopyTexImage1D);
2951 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2952 x, y, width, border);
2953
2954 ASSERT(texImage->TexFormat);
2955
2956 update_fbo_texture(ctx, texObj, face, level);
2957
2958 /* state update */
2959 texObj->_Complete = GL_FALSE;
2960 ctx->NewState |= _NEW_TEXTURE;
2961 }
2962 out:
2963 _mesa_unlock_texture(ctx, texObj);
2964 }
2965
2966
2967
2968 void GLAPIENTRY
2969 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2970 GLint x, GLint y, GLsizei width, GLsizei height,
2971 GLint border )
2972 {
2973 struct gl_texture_unit *texUnit;
2974 struct gl_texture_object *texObj;
2975 struct gl_texture_image *texImage;
2976 GLsizei postConvWidth = width, postConvHeight = height;
2977 const GLuint face = _mesa_tex_target_to_face(target);
2978 GET_CURRENT_CONTEXT(ctx);
2979 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2980
2981 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2982 _mesa_update_state(ctx);
2983
2984 if (is_color_format(internalFormat)) {
2985 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2986 &postConvHeight);
2987 }
2988
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 /* XXX should test internal format */
3051 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3052
3053 if (copytexsubimage_error_check(ctx, 1, target, level,
3054 xoffset, 0, 0, postConvWidth, 1))
3055 return;
3056
3057 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3058 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3059
3060 _mesa_lock_texture(ctx, texObj);
3061 {
3062 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3063
3064 if (copytexsubimage_error_check2(ctx, 1, target, level,
3065 xoffset, 0, 0, postConvWidth, 1,
3066 texImage))
3067 goto out;
3068
3069
3070 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3071 xoffset += texImage->Border;
3072
3073 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3074 &width, &height)) {
3075 ASSERT(ctx->Driver.CopyTexSubImage1D);
3076 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
3077 xoffset, x, y, width);
3078 }
3079
3080 ctx->NewState |= _NEW_TEXTURE;
3081 }
3082 out:
3083 _mesa_unlock_texture(ctx, texObj);
3084 }
3085
3086
3087
3088 void GLAPIENTRY
3089 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3090 GLint xoffset, GLint yoffset,
3091 GLint x, GLint y, GLsizei width, GLsizei height )
3092 {
3093 struct gl_texture_unit *texUnit;
3094 struct gl_texture_object *texObj;
3095 struct gl_texture_image *texImage;
3096 GLsizei postConvWidth = width, postConvHeight = height;
3097 GET_CURRENT_CONTEXT(ctx);
3098 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3099
3100 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3101 _mesa_update_state(ctx);
3102
3103 /* XXX should test internal format */
3104 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3105
3106 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
3107 postConvWidth, postConvHeight))
3108 return;
3109
3110 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3111 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3112
3113 _mesa_lock_texture(ctx, texObj);
3114 {
3115 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3116
3117 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3118 postConvWidth, postConvHeight, texImage))
3119 goto out;
3120
3121 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3122 xoffset += texImage->Border;
3123 yoffset += texImage->Border;
3124
3125 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3126 &width, &height)) {
3127 ASSERT(ctx->Driver.CopyTexSubImage2D);
3128 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
3129 xoffset, yoffset, x, y, width, height);
3130 }
3131
3132 ctx->NewState |= _NEW_TEXTURE;
3133 }
3134 out:
3135 _mesa_unlock_texture(ctx, texObj);
3136 }
3137
3138
3139
3140 void GLAPIENTRY
3141 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3142 GLint xoffset, GLint yoffset, GLint zoffset,
3143 GLint x, GLint y, GLsizei width, GLsizei height )
3144 {
3145 struct gl_texture_unit *texUnit;
3146 struct gl_texture_object *texObj;
3147 struct gl_texture_image *texImage;
3148 GLsizei postConvWidth = width, postConvHeight = height;
3149 GET_CURRENT_CONTEXT(ctx);
3150 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3151
3152 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3153 _mesa_update_state(ctx);
3154
3155 /* XXX should test internal format */
3156 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3157
3158 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
3159 zoffset, postConvWidth, postConvHeight))
3160 return;
3161
3162 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3163 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3164
3165 _mesa_lock_texture(ctx, texObj);
3166 {
3167 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3168
3169 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3170 zoffset, postConvWidth, postConvHeight,
3171 texImage))
3172 goto out;
3173
3174 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3175 xoffset += texImage->Border;
3176 yoffset += texImage->Border;
3177 zoffset += texImage->Border;
3178
3179 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3180 &width, &height)) {
3181 ASSERT(ctx->Driver.CopyTexSubImage3D);
3182 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
3183 xoffset, yoffset, zoffset,
3184 x, y, width, height);
3185 }
3186
3187 ctx->NewState |= _NEW_TEXTURE;
3188 }
3189 out:
3190 _mesa_unlock_texture(ctx, texObj);
3191 }
3192
3193
3194
3195
3196 /**********************************************************************/
3197 /****** Compressed Textures ******/
3198 /**********************************************************************/
3199
3200
3201 /**
3202 * Error checking for glCompressedTexImage[123]D().
3203 * \return error code or GL_NO_ERROR.
3204 */
3205 static GLenum
3206 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3207 GLenum target, GLint level,
3208 GLenum internalFormat, GLsizei width,
3209 GLsizei height, GLsizei depth, GLint border,
3210 GLsizei imageSize)
3211 {
3212 GLint expectedSize, maxLevels = 0, maxTextureSize;
3213
3214 if (dimensions == 1) {
3215 /* 1D compressed textures not allowed */
3216 return GL_INVALID_ENUM;
3217 }
3218 else if (dimensions == 2) {
3219 if (target == GL_PROXY_TEXTURE_2D) {
3220 maxLevels = ctx->Const.MaxTextureLevels;
3221 }
3222 else if (target == GL_TEXTURE_2D) {
3223 maxLevels = ctx->Const.MaxTextureLevels;
3224 }
3225 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3226 if (!ctx->Extensions.ARB_texture_cube_map)
3227 return GL_INVALID_ENUM; /*target*/
3228 maxLevels = ctx->Const.MaxCubeTextureLevels;
3229 }
3230 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3231 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3232 if (!ctx->Extensions.ARB_texture_cube_map)
3233 return GL_INVALID_ENUM; /*target*/
3234 maxLevels = ctx->Const.MaxCubeTextureLevels;
3235 }
3236 else {
3237 return GL_INVALID_ENUM; /*target*/
3238 }
3239 }
3240 else if (dimensions == 3) {
3241 /* 3D compressed textures not allowed */
3242 return GL_INVALID_ENUM;
3243 }
3244
3245 maxTextureSize = 1 << (maxLevels - 1);
3246
3247 /* This will detect any invalid internalFormat value */
3248 if (!is_compressed_format(ctx, internalFormat))
3249 return GL_INVALID_ENUM;
3250
3251 /* This should really never fail */
3252 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3253 return GL_INVALID_ENUM;
3254
3255 if (border != 0)
3256 return GL_INVALID_VALUE;
3257
3258 /*
3259 * XXX We should probably use the proxy texture error check function here.
3260 */
3261 if (width < 1 || width > maxTextureSize ||
3262 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
3263 return GL_INVALID_VALUE;
3264
3265 if ((height < 1 || height > maxTextureSize ||
3266 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
3267 && dimensions > 1)
3268 return GL_INVALID_VALUE;
3269
3270 if ((depth < 1 || depth > maxTextureSize ||
3271 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
3272 && dimensions > 2)
3273 return GL_INVALID_VALUE;
3274
3275 /* For cube map, width must equal height */
3276 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3277 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3278 return GL_INVALID_VALUE;
3279
3280 if (level < 0 || level >= maxLevels)
3281 return GL_INVALID_VALUE;
3282
3283 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3284 depth, internalFormat);
3285 if (expectedSize != imageSize)
3286 return GL_INVALID_VALUE;
3287
3288 #if FEATURE_EXT_texture_sRGB
3289 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3290 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3291 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3292 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3293 && border != 0) {
3294 return GL_INVALID_OPERATION;
3295 }
3296 #endif
3297
3298 return GL_NO_ERROR;
3299 }
3300
3301
3302 /**
3303 * Error checking for glCompressedTexSubImage[123]D().
3304 * \warning There are some bad assumptions here about the size of compressed
3305 * texture tiles (multiple of 4) used to test the validity of the
3306 * offset and size parameters.
3307 * \return error code or GL_NO_ERROR.
3308 */
3309 static GLenum
3310 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3311 GLenum target, GLint level,
3312 GLint xoffset, GLint yoffset, GLint zoffset,
3313 GLsizei width, GLsizei height, GLsizei depth,
3314 GLenum format, GLsizei imageSize)
3315 {
3316 GLint expectedSize, maxLevels = 0, maxTextureSize;
3317 (void) zoffset;
3318
3319 if (dimensions == 1) {
3320 /* 1D compressed textures not allowed */
3321 return GL_INVALID_ENUM;
3322 }
3323 else if (dimensions == 2) {
3324 if (target == GL_PROXY_TEXTURE_2D) {
3325 maxLevels = ctx->Const.MaxTextureLevels;
3326 }
3327 else if (target == GL_TEXTURE_2D) {
3328 maxLevels = ctx->Const.MaxTextureLevels;
3329 }
3330 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3331 if (!ctx->Extensions.ARB_texture_cube_map)
3332 return GL_INVALID_ENUM; /*target*/
3333 maxLevels = ctx->Const.MaxCubeTextureLevels;
3334 }
3335 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3336 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3337 if (!ctx->Extensions.ARB_texture_cube_map)
3338 return GL_INVALID_ENUM; /*target*/
3339 maxLevels = ctx->Const.MaxCubeTextureLevels;
3340 }
3341 else {
3342 return GL_INVALID_ENUM; /*target*/
3343 }
3344 }
3345 else if (dimensions == 3) {
3346 /* 3D compressed textures not allowed */
3347 return GL_INVALID_ENUM;
3348 }
3349
3350 maxTextureSize = 1 << (maxLevels - 1);
3351
3352 /* this will catch any invalid compressed format token */
3353 if (!is_compressed_format(ctx, format))
3354 return GL_INVALID_ENUM;
3355
3356 if (width < 1 || width > maxTextureSize)
3357 return GL_INVALID_VALUE;
3358
3359 if ((height < 1 || height > maxTextureSize)
3360 && dimensions > 1)
3361 return GL_INVALID_VALUE;
3362
3363 if (level < 0 || level >= maxLevels)
3364 return GL_INVALID_VALUE;
3365
3366 /* XXX these tests are specific to the compressed format.
3367 * this code should be generalized in some way.
3368 */
3369 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3370 return GL_INVALID_VALUE;
3371
3372 if ((width & 3) != 0 && width != 2 && width != 1)
3373 return GL_INVALID_VALUE;
3374
3375 if ((height & 3) != 0 && height != 2 && height != 1)
3376 return GL_INVALID_VALUE;
3377
3378 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3379 depth, format);
3380 if (expectedSize != imageSize)
3381 return GL_INVALID_VALUE;
3382
3383 return GL_NO_ERROR;
3384 }
3385
3386
3387
3388 void GLAPIENTRY
3389 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3390 GLenum internalFormat, GLsizei width,
3391 GLint border, GLsizei imageSize,
3392 const GLvoid *data)
3393 {
3394 GET_CURRENT_CONTEXT(ctx);
3395 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3396
3397 if (target == GL_TEXTURE_1D) {
3398 /* non-proxy target */
3399 struct gl_texture_unit *texUnit;
3400 struct gl_texture_object *texObj;
3401 struct gl_texture_image *texImage;
3402 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3403 internalFormat, width, 1, 1, border, imageSize);
3404 if (error) {
3405 _mesa_error(ctx, error, "glCompressedTexImage1D");
3406 return;
3407 }
3408
3409 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3410 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3411
3412 _mesa_lock_texture(ctx, texObj);
3413 {
3414 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3415 if (!texImage) {
3416 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3417 goto out;
3418 }
3419
3420 if (texImage->Data) {
3421 ctx->Driver.FreeTexImageData( ctx, texImage );
3422 }
3423 ASSERT(texImage->Data == NULL);
3424
3425 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3426 border, internalFormat);
3427
3428 ASSERT(ctx->Driver.CompressedTexImage1D);
3429 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3430 internalFormat, width, border,
3431 imageSize, data,
3432 texObj, texImage);
3433
3434 /* state update */
3435 texObj->_Complete = GL_FALSE;
3436 ctx->NewState |= _NEW_TEXTURE;
3437 }
3438 out:
3439 _mesa_unlock_texture(ctx, texObj);
3440 }
3441 else if (target == GL_PROXY_TEXTURE_1D) {
3442 /* Proxy texture: check for errors and update proxy state */
3443 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3444 internalFormat, width, 1, 1, border, imageSize);
3445 if (!error) {
3446 ASSERT(ctx->Driver.TestProxyTexImage);
3447 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3448 internalFormat, GL_NONE, GL_NONE,
3449 width, 1, 1, border);
3450 }
3451 if (error) {
3452 /* if error, clear all proxy texture image parameters */
3453 struct gl_texture_image *texImage;
3454 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3455 if (texImage)
3456 clear_teximage_fields(texImage);
3457 }
3458 else {
3459 /* store the teximage parameters */
3460 struct gl_texture_unit *texUnit;
3461 struct gl_texture_object *texObj;
3462 struct gl_texture_image *texImage;
3463 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3464 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3465
3466 _mesa_lock_texture(ctx, texObj);
3467 {
3468 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3469 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3470 border, internalFormat);
3471 }
3472 _mesa_unlock_texture(ctx, texObj);
3473 }
3474 }
3475 else {
3476 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3477 return;
3478 }
3479 }
3480
3481
3482 void GLAPIENTRY
3483 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3484 GLenum internalFormat, GLsizei width,
3485 GLsizei height, GLint border, GLsizei imageSize,
3486 const GLvoid *data)
3487 {
3488 GET_CURRENT_CONTEXT(ctx);
3489 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3490
3491 if (target == GL_TEXTURE_2D ||
3492 (ctx->Extensions.ARB_texture_cube_map &&
3493 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3494 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3495 /* non-proxy target */
3496 struct gl_texture_unit *texUnit;
3497 struct gl_texture_object *texObj;
3498 struct gl_texture_image *texImage;
3499 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3500 internalFormat, width, height, 1, border, imageSize);
3501 if (error) {
3502 _mesa_error(ctx, error, "glCompressedTexImage2D");
3503 return;
3504 }
3505
3506 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3507 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3508
3509 _mesa_lock_texture(ctx, texObj);
3510 {
3511 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3512 if (!texImage) {
3513 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3514 goto out;
3515 }
3516
3517 if (texImage->Data) {
3518 ctx->Driver.FreeTexImageData( ctx, texImage );
3519 }
3520 ASSERT(texImage->Data == NULL);
3521
3522 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3523 border, internalFormat);
3524
3525 ASSERT(ctx->Driver.CompressedTexImage2D);
3526 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3527 internalFormat, width, height,
3528 border, imageSize, data,
3529 texObj, texImage);
3530
3531 /* state update */
3532 texObj->_Complete = GL_FALSE;
3533 ctx->NewState |= _NEW_TEXTURE;
3534 }
3535 out:
3536 _mesa_unlock_texture(ctx, texObj);
3537 }
3538 else if (target == GL_PROXY_TEXTURE_2D ||
3539 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3540 ctx->Extensions.ARB_texture_cube_map)) {
3541 /* Proxy texture: check for errors and update proxy state */
3542 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3543 internalFormat, width, height, 1, border, imageSize);
3544 if (!error) {
3545 ASSERT(ctx->Driver.TestProxyTexImage);
3546 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3547 internalFormat, GL_NONE, GL_NONE,
3548 width, height, 1, border);
3549 }
3550 if (error) {
3551 /* if error, clear all proxy texture image parameters */
3552 struct gl_texture_image *texImage;
3553 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3554 if (texImage)
3555 clear_teximage_fields(texImage);
3556 }
3557 else {
3558 /* store the teximage parameters */
3559 struct gl_texture_unit *texUnit;
3560 struct gl_texture_object *texObj;
3561 struct gl_texture_image *texImage;
3562 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3563 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3564
3565 _mesa_lock_texture(ctx, texObj);
3566 {
3567 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3568 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3569 border, internalFormat);
3570 }
3571 _mesa_unlock_texture(ctx, texObj);
3572 }
3573 }
3574 else {
3575 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3576 return;
3577 }
3578 }
3579
3580
3581 void GLAPIENTRY
3582 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3583 GLenum internalFormat, GLsizei width,
3584 GLsizei height, GLsizei depth, GLint border,
3585 GLsizei imageSize, const GLvoid *data)
3586 {
3587 GET_CURRENT_CONTEXT(ctx);
3588 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3589
3590 if (target == GL_TEXTURE_3D) {
3591 /* non-proxy target */
3592 struct gl_texture_unit *texUnit;
3593 struct gl_texture_object *texObj;
3594 struct gl_texture_image *texImage;
3595 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3596 internalFormat, width, height, depth, border, imageSize);
3597 if (error) {
3598 _mesa_error(ctx, error, "glCompressedTexImage3D");
3599 return;
3600 }
3601
3602 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3603 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3604 _mesa_lock_texture(ctx, texObj);
3605 {
3606 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3607 if (!texImage) {
3608 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3609 goto out;
3610 }
3611
3612 if (texImage->Data) {
3613 ctx->Driver.FreeTexImageData( ctx, texImage );
3614 }
3615 ASSERT(texImage->Data == NULL);
3616
3617 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3618 border, internalFormat);
3619
3620 ASSERT(ctx->Driver.CompressedTexImage3D);
3621 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3622 internalFormat,
3623 width, height, depth,
3624 border, imageSize, data,
3625 texObj, texImage);
3626
3627 /* state update */
3628 texObj->_Complete = GL_FALSE;
3629 ctx->NewState |= _NEW_TEXTURE;
3630 }
3631 out:
3632 _mesa_unlock_texture(ctx, texObj);
3633 }
3634 else if (target == GL_PROXY_TEXTURE_3D) {
3635 /* Proxy texture: check for errors and update proxy state */
3636 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3637 internalFormat, width, height, depth, border, imageSize);
3638 if (!error) {
3639 ASSERT(ctx->Driver.TestProxyTexImage);
3640 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3641 internalFormat, GL_NONE, GL_NONE,
3642 width, height, depth, border);
3643 }
3644 if (error) {
3645 /* if error, clear all proxy texture image parameters */
3646 struct gl_texture_image *texImage;
3647 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3648 if (texImage)
3649 clear_teximage_fields(texImage);
3650 }
3651 else {
3652 /* store the teximage parameters */
3653 struct gl_texture_unit *texUnit;
3654 struct gl_texture_object *texObj;
3655 struct gl_texture_image *texImage;
3656 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3657 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3658 _mesa_lock_texture(ctx, texObj);
3659 {
3660 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3661 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3662 depth, border, internalFormat);
3663 }
3664 _mesa_unlock_texture(ctx, texObj);
3665 }
3666 }
3667 else {
3668 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3669 return;
3670 }
3671 }
3672
3673
3674 void GLAPIENTRY
3675 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3676 GLsizei width, GLenum format,
3677 GLsizei imageSize, const GLvoid *data)
3678 {
3679 struct gl_texture_unit *texUnit;
3680 struct gl_texture_object *texObj;
3681 struct gl_texture_image *texImage;
3682 GLenum error;
3683 GET_CURRENT_CONTEXT(ctx);
3684 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3685
3686 error = compressed_subtexture_error_check(ctx, 1, target, level,
3687 xoffset, 0, 0, /* pos */
3688 width, 1, 1, /* size */
3689 format, imageSize);
3690 if (error) {
3691 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3692 return;
3693 }
3694
3695 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3696 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3697 _mesa_lock_texture(ctx, texObj);
3698 {
3699 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3700 assert(texImage);
3701
3702 if ((GLint) format != texImage->InternalFormat) {
3703 _mesa_error(ctx, GL_INVALID_OPERATION,
3704 "glCompressedTexSubImage1D(format)");
3705 goto out;
3706 }
3707
3708 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3709 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3710 goto out;
3711 }
3712
3713 if (width == 0)
3714 goto out; /* no-op, not an error */
3715
3716 if (ctx->Driver.CompressedTexSubImage1D) {
3717 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3718 xoffset, width,
3719 format, imageSize, data,
3720 texObj, texImage);
3721 }
3722 ctx->NewState |= _NEW_TEXTURE;
3723 }
3724 out:
3725 _mesa_unlock_texture(ctx, texObj);
3726 }
3727
3728
3729 void GLAPIENTRY
3730 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3731 GLint yoffset, GLsizei width, GLsizei height,
3732 GLenum format, GLsizei imageSize,
3733 const GLvoid *data)
3734 {
3735 struct gl_texture_unit *texUnit;
3736 struct gl_texture_object *texObj;
3737 struct gl_texture_image *texImage;
3738 GLenum error;
3739 GET_CURRENT_CONTEXT(ctx);
3740 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3741
3742 error = compressed_subtexture_error_check(ctx, 2, target, level,
3743 xoffset, yoffset, 0, /* pos */
3744 width, height, 1, /* size */
3745 format, imageSize);
3746 if (error) {
3747 /* XXX proxy target? */
3748 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3749 return;
3750 }
3751
3752 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3753 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3754 _mesa_lock_texture(ctx, texObj);
3755 {
3756 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3757 assert(texImage);
3758
3759 if ((GLint) format != texImage->InternalFormat) {
3760 _mesa_error(ctx, GL_INVALID_OPERATION,
3761 "glCompressedTexSubImage2D(format)");
3762 goto out;
3763 }
3764
3765 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3766 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3767 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3768 goto out;
3769 }
3770
3771 if (width == 0 || height == 0)
3772 goto out; /* no-op, not an error */
3773
3774 if (ctx->Driver.CompressedTexSubImage2D) {
3775 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3776 xoffset, yoffset, width, height,
3777 format, imageSize, data,
3778 texObj, texImage);
3779 }
3780 ctx->NewState |= _NEW_TEXTURE;
3781 }
3782 out:
3783 _mesa_unlock_texture(ctx, texObj);
3784 }
3785
3786
3787 void GLAPIENTRY
3788 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3789 GLint yoffset, GLint zoffset, GLsizei width,
3790 GLsizei height, GLsizei depth, GLenum format,
3791 GLsizei imageSize, const GLvoid *data)
3792 {
3793 struct gl_texture_unit *texUnit;
3794 struct gl_texture_object *texObj;
3795 struct gl_texture_image *texImage;
3796 GLenum error;
3797 GET_CURRENT_CONTEXT(ctx);
3798 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3799
3800 error = compressed_subtexture_error_check(ctx, 3, target, level,
3801 xoffset, yoffset, zoffset,/*pos*/
3802 width, height, depth, /*size*/
3803 format, imageSize);
3804 if (error) {
3805 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3806 return;
3807 }
3808
3809 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3810 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3811 _mesa_lock_texture(ctx, texObj);
3812 {
3813 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3814 assert(texImage);
3815
3816 if ((GLint) format != texImage->InternalFormat) {
3817 _mesa_error(ctx, GL_INVALID_OPERATION,
3818 "glCompressedTexSubImage3D(format)");
3819 goto out;
3820 }
3821
3822 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3823 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3824 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3825 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3826 goto out;
3827 }
3828
3829 if (width == 0 || height == 0 || depth == 0)
3830 goto out; /* no-op, not an error */
3831
3832 if (ctx->Driver.CompressedTexSubImage3D) {
3833 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3834 xoffset, yoffset, zoffset,
3835 width, height, depth,
3836 format, imageSize, data,
3837 texObj, texImage);
3838 }
3839 ctx->NewState |= _NEW_TEXTURE;
3840 }
3841 out:
3842 _mesa_unlock_texture(ctx, texObj);
3843 }
3844
3845
3846 void GLAPIENTRY
3847 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3848 {
3849 const struct gl_texture_unit *texUnit;
3850 struct gl_texture_object *texObj;
3851 struct gl_texture_image *texImage;
3852 GLint maxLevels;
3853 GET_CURRENT_CONTEXT(ctx);
3854 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3855
3856 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3857 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3858 if (!texObj) {
3859 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3860 return;
3861 }
3862
3863 maxLevels = _mesa_max_texture_levels(ctx, target);
3864 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3865
3866 if (level < 0 || level >= maxLevels) {
3867 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3868 return;
3869 }
3870
3871 if (_mesa_is_proxy_texture(target)) {
3872 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3873 return;
3874 }
3875
3876 _mesa_lock_texture(ctx, texObj);
3877 {
3878 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3879 if (texImage) {
3880 if (texImage->IsCompressed) {
3881 /* this typically calls _mesa_get_compressed_teximage() */
3882 ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
3883 texObj, texImage);
3884 }
3885 else {
3886 _mesa_error(ctx, GL_INVALID_OPERATION,
3887 "glGetCompressedTexImageARB");
3888 }
3889 }
3890 else {
3891 /* probably invalid mipmap level */
3892 _mesa_error(ctx, GL_INVALID_VALUE,
3893 "glGetCompressedTexImageARB(level)");
3894 }
3895 }
3896 _mesa_unlock_texture(ctx, texObj);
3897 }