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Merge branch 'origin' into i915-unification
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 6.5.1
4 *
5 * Copyright (C) 1999-2006 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 static GLuint
599 texture_face(GLenum target)
600 {
601 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
602 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
603 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
604 else
605 return 0;
606 }
607
608
609
610 /**
611 * Store a gl_texture_image pointer in a gl_texture_object structure
612 * according to the target and level parameters.
613 *
614 * \param tObj texture object.
615 * \param target texture target.
616 * \param level image level.
617 * \param texImage texture image.
618 *
619 * This was basically prompted by the introduction of cube maps.
620 */
621 void
622 _mesa_set_tex_image(struct gl_texture_object *tObj,
623 GLenum target, GLint level,
624 struct gl_texture_image *texImage)
625 {
626 ASSERT(tObj);
627 ASSERT(texImage);
628 switch (target) {
629 case GL_TEXTURE_1D:
630 case GL_TEXTURE_2D:
631 case GL_TEXTURE_3D:
632 case GL_TEXTURE_1D_ARRAY_EXT:
633 case GL_TEXTURE_2D_ARRAY_EXT:
634 tObj->Image[0][level] = texImage;
635 break;
636 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
637 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
638 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
639 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
640 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
641 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
642 {
643 GLuint face = ((GLuint) target -
644 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
645 tObj->Image[face][level] = texImage;
646 }
647 break;
648 case GL_TEXTURE_RECTANGLE_NV:
649 ASSERT(level == 0);
650 tObj->Image[0][level] = texImage;
651 break;
652 default:
653 _mesa_problem(NULL, "bad target in _mesa_set_tex_image()");
654 return;
655 }
656 /* Set the 'back' pointer */
657 texImage->TexObject = tObj;
658 }
659
660
661 /**
662 * Allocate a texture image structure.
663 *
664 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
665 * driver.
666 *
667 * \return a pointer to gl_texture_image struct with all fields initialized to
668 * zero.
669 */
670 struct gl_texture_image *
671 _mesa_new_texture_image( GLcontext *ctx )
672 {
673 (void) ctx;
674 return CALLOC_STRUCT(gl_texture_image);
675 }
676
677
678 /**
679 * Free texture image data.
680 * This function is a fallback called via ctx->Driver.FreeTexImageData().
681 *
682 * \param teximage texture image.
683 *
684 * Free the texture image data if it's not marked as client data.
685 */
686 void
687 _mesa_free_texture_image_data(GLcontext *ctx,
688 struct gl_texture_image *texImage)
689 {
690 (void) ctx;
691
692 if (texImage->Data && !texImage->IsClientData) {
693 /* free the old texture data */
694 _mesa_free_texmemory(texImage->Data);
695 }
696
697 texImage->Data = NULL;
698 }
699
700
701 /**
702 * Free texture image.
703 *
704 * \param teximage texture image.
705 *
706 * Free the texture image structure and the associated image data.
707 */
708 void
709 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
710 {
711 /* Free texImage->Data and/or any other driver-specific texture
712 * image storage.
713 */
714 ASSERT(ctx->Driver.FreeTexImageData);
715 ctx->Driver.FreeTexImageData( ctx, texImage );
716
717 ASSERT(texImage->Data == NULL);
718 if (texImage->ImageOffsets)
719 _mesa_free(texImage->ImageOffsets);
720 _mesa_free(texImage);
721 }
722
723
724 /**
725 * Test if a target is a proxy target.
726 *
727 * \param target texture target.
728 *
729 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
730 */
731 GLboolean
732 _mesa_is_proxy_texture(GLenum target)
733 {
734 return (target == GL_PROXY_TEXTURE_1D ||
735 target == GL_PROXY_TEXTURE_2D ||
736 target == GL_PROXY_TEXTURE_3D ||
737 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
738 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
739 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
740 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
741 }
742
743
744 /**
745 * Get the texture object that corresponds to the target of the given texture unit.
746 *
747 * \param ctx GL context.
748 * \param texUnit texture unit.
749 * \param target texture target.
750 *
751 * \return pointer to the texture object on success, or NULL on failure.
752 *
753 * \sa gl_texture_unit.
754 */
755 struct gl_texture_object *
756 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
757 GLenum target)
758 {
759 switch (target) {
760 case GL_TEXTURE_1D:
761 return texUnit->Current1D;
762 case GL_PROXY_TEXTURE_1D:
763 return ctx->Texture.Proxy1D;
764 case GL_TEXTURE_2D:
765 return texUnit->Current2D;
766 case GL_PROXY_TEXTURE_2D:
767 return ctx->Texture.Proxy2D;
768 case GL_TEXTURE_3D:
769 return texUnit->Current3D;
770 case GL_PROXY_TEXTURE_3D:
771 return ctx->Texture.Proxy3D;
772 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
773 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
774 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
775 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
776 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
777 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
778 case GL_TEXTURE_CUBE_MAP_ARB:
779 return ctx->Extensions.ARB_texture_cube_map
780 ? texUnit->CurrentCubeMap : NULL;
781 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
782 return ctx->Extensions.ARB_texture_cube_map
783 ? ctx->Texture.ProxyCubeMap : NULL;
784 case GL_TEXTURE_RECTANGLE_NV:
785 return ctx->Extensions.NV_texture_rectangle
786 ? texUnit->CurrentRect : NULL;
787 case GL_PROXY_TEXTURE_RECTANGLE_NV:
788 return ctx->Extensions.NV_texture_rectangle
789 ? ctx->Texture.ProxyRect : NULL;
790 case GL_TEXTURE_1D_ARRAY_EXT:
791 return ctx->Extensions.MESA_texture_array
792 ? texUnit->Current1DArray : NULL;
793 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
794 return ctx->Extensions.MESA_texture_array
795 ? ctx->Texture.Proxy1DArray : NULL;
796 case GL_TEXTURE_2D_ARRAY_EXT:
797 return ctx->Extensions.MESA_texture_array
798 ? texUnit->Current2DArray : NULL;
799 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
800 return ctx->Extensions.MESA_texture_array
801 ? ctx->Texture.Proxy2DArray : NULL;
802 default:
803 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
804 return NULL;
805 }
806 }
807
808
809 /**
810 * Get the texture image struct which corresponds to target and level
811 * of the given texture unit.
812 *
813 * \param ctx GL context.
814 * \param texUnit texture unit.
815 * \param target texture target.
816 * \param level image level.
817 *
818 * \return pointer to the texture image structure on success, or NULL on failure.
819 *
820 * \sa gl_texture_unit.
821 */
822 struct gl_texture_image *
823 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
824 GLenum target, GLint level)
825 {
826 ASSERT(texObj);
827
828 if (level < 0 || level >= MAX_TEXTURE_LEVELS)
829 return NULL;
830
831 switch (target) {
832 case GL_TEXTURE_1D:
833 case GL_PROXY_TEXTURE_1D:
834 case GL_TEXTURE_2D:
835 case GL_PROXY_TEXTURE_2D:
836 case GL_TEXTURE_3D:
837 case GL_PROXY_TEXTURE_3D:
838 return texObj->Image[0][level];
839
840 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
841 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
842 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
843 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
844 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
845 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
846 if (ctx->Extensions.ARB_texture_cube_map) {
847 GLuint face = ((GLuint) target -
848 (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X);
849 return texObj->Image[face][level];
850 }
851 else
852 return NULL;
853
854 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
855 if (ctx->Extensions.ARB_texture_cube_map)
856 return texObj->Image[0][level];
857 else
858 return NULL;
859
860 case GL_TEXTURE_RECTANGLE_NV:
861 case GL_PROXY_TEXTURE_RECTANGLE_NV:
862 if (ctx->Extensions.NV_texture_rectangle && level == 0)
863 return texObj->Image[0][level];
864 else
865 return NULL;
866
867 case GL_TEXTURE_1D_ARRAY_EXT:
868 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
869 case GL_TEXTURE_2D_ARRAY_EXT:
870 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
871 return (ctx->Extensions.MESA_texture_array)
872 ? texObj->Image[0][level] : NULL;
873
874 default:
875 return NULL;
876 }
877 }
878
879
880 /**
881 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
882 * it and install it. Only return NULL if passed a bad parameter or run
883 * out of memory.
884 */
885 struct gl_texture_image *
886 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
887 GLenum target, GLint level)
888 {
889 struct gl_texture_image *texImage;
890
891 if (!texObj)
892 return NULL;
893
894 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
895 if (!texImage) {
896 texImage = ctx->Driver.NewTextureImage(ctx);
897 if (!texImage) {
898 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
899 return NULL;
900 }
901
902 _mesa_set_tex_image(texObj, target, level, texImage);
903 }
904
905 return texImage;
906 }
907
908
909 /**
910 * Return pointer to the specified proxy texture image.
911 * Note that proxy textures are per-context, not per-texture unit.
912 * \return pointer to texture image or NULL if invalid target, invalid
913 * level, or out of memory.
914 */
915 struct gl_texture_image *
916 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
917 {
918 struct gl_texture_image *texImage;
919
920 if (level < 0 )
921 return NULL;
922
923 switch (target) {
924 case GL_PROXY_TEXTURE_1D:
925 if (level >= ctx->Const.MaxTextureLevels)
926 return NULL;
927 texImage = ctx->Texture.Proxy1D->Image[0][level];
928 if (!texImage) {
929 texImage = ctx->Driver.NewTextureImage(ctx);
930 if (!texImage) {
931 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
932 return NULL;
933 }
934 ctx->Texture.Proxy1D->Image[0][level] = texImage;
935 /* Set the 'back' pointer */
936 texImage->TexObject = ctx->Texture.Proxy1D;
937 }
938 return texImage;
939 case GL_PROXY_TEXTURE_2D:
940 if (level >= ctx->Const.MaxTextureLevels)
941 return NULL;
942 texImage = ctx->Texture.Proxy2D->Image[0][level];
943 if (!texImage) {
944 texImage = ctx->Driver.NewTextureImage(ctx);
945 if (!texImage) {
946 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
947 return NULL;
948 }
949 ctx->Texture.Proxy2D->Image[0][level] = texImage;
950 /* Set the 'back' pointer */
951 texImage->TexObject = ctx->Texture.Proxy2D;
952 }
953 return texImage;
954 case GL_PROXY_TEXTURE_3D:
955 if (level >= ctx->Const.Max3DTextureLevels)
956 return NULL;
957 texImage = ctx->Texture.Proxy3D->Image[0][level];
958 if (!texImage) {
959 texImage = ctx->Driver.NewTextureImage(ctx);
960 if (!texImage) {
961 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
962 return NULL;
963 }
964 ctx->Texture.Proxy3D->Image[0][level] = texImage;
965 /* Set the 'back' pointer */
966 texImage->TexObject = ctx->Texture.Proxy3D;
967 }
968 return texImage;
969 case GL_PROXY_TEXTURE_CUBE_MAP:
970 if (level >= ctx->Const.MaxCubeTextureLevels)
971 return NULL;
972 texImage = ctx->Texture.ProxyCubeMap->Image[0][level];
973 if (!texImage) {
974 texImage = ctx->Driver.NewTextureImage(ctx);
975 if (!texImage) {
976 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
977 return NULL;
978 }
979 ctx->Texture.ProxyCubeMap->Image[0][level] = texImage;
980 /* Set the 'back' pointer */
981 texImage->TexObject = ctx->Texture.ProxyCubeMap;
982 }
983 return texImage;
984 case GL_PROXY_TEXTURE_RECTANGLE_NV:
985 if (level > 0)
986 return NULL;
987 texImage = ctx->Texture.ProxyRect->Image[0][level];
988 if (!texImage) {
989 texImage = ctx->Driver.NewTextureImage(ctx);
990 if (!texImage) {
991 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
992 return NULL;
993 }
994 ctx->Texture.ProxyRect->Image[0][level] = texImage;
995 /* Set the 'back' pointer */
996 texImage->TexObject = ctx->Texture.ProxyRect;
997 }
998 return texImage;
999 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1000 if (level >= ctx->Const.MaxTextureLevels)
1001 return NULL;
1002 texImage = ctx->Texture.Proxy1DArray->Image[0][level];
1003 if (!texImage) {
1004 texImage = ctx->Driver.NewTextureImage(ctx);
1005 if (!texImage) {
1006 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1007 return NULL;
1008 }
1009 ctx->Texture.Proxy1DArray->Image[0][level] = texImage;
1010 /* Set the 'back' pointer */
1011 texImage->TexObject = ctx->Texture.Proxy1DArray;
1012 }
1013 return texImage;
1014 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1015 if (level >= ctx->Const.MaxTextureLevels)
1016 return NULL;
1017 texImage = ctx->Texture.Proxy2DArray->Image[0][level];
1018 if (!texImage) {
1019 texImage = ctx->Driver.NewTextureImage(ctx);
1020 if (!texImage) {
1021 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
1022 return NULL;
1023 }
1024 ctx->Texture.Proxy2DArray->Image[0][level] = texImage;
1025 /* Set the 'back' pointer */
1026 texImage->TexObject = ctx->Texture.Proxy2DArray;
1027 }
1028 return texImage;
1029 default:
1030 return NULL;
1031 }
1032 }
1033
1034
1035 /**
1036 * Get the maximum number of allowed mipmap levels.
1037 *
1038 * \param ctx GL context.
1039 * \param target texture target.
1040 *
1041 * \return the maximum number of allowed mipmap levels for the given
1042 * texture target, or zero if passed a bad target.
1043 *
1044 * \sa gl_constants.
1045 */
1046 GLint
1047 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
1048 {
1049 switch (target) {
1050 case GL_TEXTURE_1D:
1051 case GL_PROXY_TEXTURE_1D:
1052 case GL_TEXTURE_2D:
1053 case GL_PROXY_TEXTURE_2D:
1054 case GL_TEXTURE_1D_ARRAY_EXT:
1055 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1056 case GL_TEXTURE_2D_ARRAY_EXT:
1057 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1058 return ctx->Const.MaxTextureLevels;
1059 case GL_TEXTURE_3D:
1060 case GL_PROXY_TEXTURE_3D:
1061 return ctx->Const.Max3DTextureLevels;
1062 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
1063 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
1064 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
1065 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
1066 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
1067 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
1068 case GL_TEXTURE_CUBE_MAP_ARB:
1069 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1070 return ctx->Const.MaxCubeTextureLevels;
1071 case GL_TEXTURE_RECTANGLE_NV:
1072 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1073 return 1;
1074 default:
1075 return 0; /* bad target */
1076 }
1077 }
1078
1079
1080
1081 #if 000 /* not used anymore */
1082 /*
1083 * glTexImage[123]D can accept a NULL image pointer. In this case we
1084 * create a texture image with unspecified image contents per the OpenGL
1085 * spec.
1086 */
1087 static GLubyte *
1088 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1089 {
1090 const GLint components = _mesa_components_in_format(format);
1091 const GLint numPixels = width * height * depth;
1092 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
1093
1094 #ifdef DEBUG
1095 /*
1096 * Let's see if anyone finds this. If glTexImage2D() is called with
1097 * a NULL image pointer then load the texture image with something
1098 * interesting instead of leaving it indeterminate.
1099 */
1100 if (data) {
1101 static const char message[8][32] = {
1102 " X X XXXXX XXX X ",
1103 " XX XX X X X X X ",
1104 " X X X X X X X ",
1105 " X X XXXX XXX XXXXX ",
1106 " X X X X X X ",
1107 " X X X X X X X ",
1108 " X X XXXXX XXX X X ",
1109 " "
1110 };
1111
1112 GLubyte *imgPtr = data;
1113 GLint h, i, j, k;
1114 for (h = 0; h < depth; h++) {
1115 for (i = 0; i < height; i++) {
1116 GLint srcRow = 7 - (i % 8);
1117 for (j = 0; j < width; j++) {
1118 GLint srcCol = j % 32;
1119 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1120 for (k = 0; k < components; k++) {
1121 *imgPtr++ = texel;
1122 }
1123 }
1124 }
1125 }
1126 }
1127 #endif
1128
1129 return data;
1130 }
1131 #endif
1132
1133
1134
1135 /**
1136 * Reset the fields of a gl_texture_image struct to zero.
1137 *
1138 * \param img texture image structure.
1139 *
1140 * This is called when a proxy texture test fails, we set all the
1141 * image members (except DriverData) to zero.
1142 * It's also used in glTexImage[123]D as a safeguard to be sure all
1143 * required fields get initialized properly by the Driver.TexImage[123]D
1144 * functions.
1145 */
1146 static void
1147 clear_teximage_fields(struct gl_texture_image *img)
1148 {
1149 ASSERT(img);
1150 img->_BaseFormat = 0;
1151 img->InternalFormat = 0;
1152 img->Border = 0;
1153 img->Width = 0;
1154 img->Height = 0;
1155 img->Depth = 0;
1156 img->RowStride = 0;
1157 if (img->ImageOffsets) {
1158 _mesa_free(img->ImageOffsets);
1159 img->ImageOffsets = NULL;
1160 }
1161 img->Width2 = 0;
1162 img->Height2 = 0;
1163 img->Depth2 = 0;
1164 img->WidthLog2 = 0;
1165 img->HeightLog2 = 0;
1166 img->DepthLog2 = 0;
1167 img->Data = NULL;
1168 img->TexFormat = &_mesa_null_texformat;
1169 img->FetchTexelc = NULL;
1170 img->FetchTexelf = NULL;
1171 img->IsCompressed = 0;
1172 img->CompressedSize = 0;
1173 }
1174
1175
1176 /**
1177 * Initialize basic fields of the gl_texture_image struct.
1178 *
1179 * \param ctx GL context.
1180 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
1181 * \param img texture image structure to be initialized.
1182 * \param width image width.
1183 * \param height image height.
1184 * \param depth image depth.
1185 * \param border image border.
1186 * \param internalFormat internal format.
1187 *
1188 * Fills in the fields of \p img with the given information.
1189 * Note: width, height and depth include the border.
1190 */
1191 void
1192 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
1193 struct gl_texture_image *img,
1194 GLsizei width, GLsizei height, GLsizei depth,
1195 GLint border, GLenum internalFormat)
1196 {
1197 GLint i;
1198
1199 ASSERT(img);
1200 ASSERT(width >= 0);
1201 ASSERT(height >= 0);
1202 ASSERT(depth >= 0);
1203
1204 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1205 ASSERT(img->_BaseFormat > 0);
1206 img->InternalFormat = internalFormat;
1207 img->Border = border;
1208 img->Width = width;
1209 img->Height = height;
1210 img->Depth = depth;
1211 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1212 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1213 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1214 img->WidthLog2 = logbase2(img->Width2);
1215 if (height == 1) /* 1-D texture */
1216 img->HeightLog2 = 0;
1217 else
1218 img->HeightLog2 = logbase2(img->Height2);
1219 if (depth == 1) /* 2-D texture */
1220 img->DepthLog2 = 0;
1221 else
1222 img->DepthLog2 = logbase2(img->Depth2);
1223 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
1224 img->IsCompressed = GL_FALSE;
1225 img->CompressedSize = 0;
1226
1227 if ((width == 1 || _mesa_bitcount(img->Width2) == 1) &&
1228 (height == 1 || _mesa_bitcount(img->Height2) == 1) &&
1229 (depth == 1 || _mesa_bitcount(img->Depth2) == 1))
1230 img->_IsPowerOfTwo = GL_TRUE;
1231 else
1232 img->_IsPowerOfTwo = GL_FALSE;
1233
1234 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
1235 img->RowStride = width;
1236 /* Allocate the ImageOffsets array and initialize to typical values.
1237 * We allocate the array for 1D/2D textures too in order to avoid special-
1238 * case code in the texstore routines.
1239 */
1240 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
1241 for (i = 0; i < depth; i++) {
1242 img->ImageOffsets[i] = i * width * height;
1243 }
1244
1245 /* Compute Width/Height/DepthScale for mipmap lod computation */
1246 if (target == GL_TEXTURE_RECTANGLE_NV) {
1247 /* scale = 1.0 since texture coords directly map to texels */
1248 img->WidthScale = 1.0;
1249 img->HeightScale = 1.0;
1250 img->DepthScale = 1.0;
1251 }
1252 else {
1253 img->WidthScale = (GLfloat) img->Width;
1254 img->HeightScale = (GLfloat) img->Height;
1255 img->DepthScale = (GLfloat) img->Depth;
1256 }
1257 }
1258
1259
1260 /**
1261 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1262 * level, width, height and depth against the ctx->Const limits for textures.
1263 *
1264 * A hardware driver might override this function if, for example, the
1265 * max 3D texture size is 512x512x64 (i.e. not a cube).
1266 *
1267 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1268 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1269 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1270 * \param level as passed to glTexImage
1271 * \param internalFormat as passed to glTexImage
1272 * \param format as passed to glTexImage
1273 * \param type as passed to glTexImage
1274 * \param width as passed to glTexImage
1275 * \param height as passed to glTexImage
1276 * \param depth as passed to glTexImage
1277 * \param border as passed to glTexImage
1278 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1279 */
1280 GLboolean
1281 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1282 GLint internalFormat, GLenum format, GLenum type,
1283 GLint width, GLint height, GLint depth, GLint border)
1284 {
1285 GLint maxSize;
1286
1287 (void) internalFormat;
1288 (void) format;
1289 (void) type;
1290
1291 switch (target) {
1292 case GL_PROXY_TEXTURE_1D:
1293 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1294 if (width < 2 * border || width > 2 + maxSize ||
1295 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1296 _mesa_bitcount(width - 2 * border) != 1) ||
1297 level >= ctx->Const.MaxTextureLevels) {
1298 /* bad width or level */
1299 return GL_FALSE;
1300 }
1301 return GL_TRUE;
1302 case GL_PROXY_TEXTURE_2D:
1303 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1304 if (width < 2 * border || width > 2 + maxSize ||
1305 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1306 _mesa_bitcount(width - 2 * border) != 1) ||
1307 height < 2 * border || height > 2 + maxSize ||
1308 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1309 _mesa_bitcount(height - 2 * border) != 1) ||
1310 level >= ctx->Const.MaxTextureLevels) {
1311 /* bad width or height or level */
1312 return GL_FALSE;
1313 }
1314 return GL_TRUE;
1315 case GL_PROXY_TEXTURE_3D:
1316 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1317 if (width < 2 * border || width > 2 + maxSize ||
1318 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1319 _mesa_bitcount(width - 2 * border) != 1) ||
1320 height < 2 * border || height > 2 + maxSize ||
1321 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1322 _mesa_bitcount(height - 2 * border) != 1) ||
1323 depth < 2 * border || depth > 2 + maxSize ||
1324 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1325 _mesa_bitcount(depth - 2 * border) != 1) ||
1326 level >= ctx->Const.Max3DTextureLevels) {
1327 /* bad width or height or depth or level */
1328 return GL_FALSE;
1329 }
1330 return GL_TRUE;
1331 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1332 if (width < 1 || width > ctx->Const.MaxTextureRectSize ||
1333 height < 1 || height > ctx->Const.MaxTextureRectSize ||
1334 level != 0) {
1335 /* bad width or height or level */
1336 return GL_FALSE;
1337 }
1338 return GL_TRUE;
1339 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1340 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1341 if (width < 2 * border || width > 2 + maxSize ||
1342 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1343 _mesa_bitcount(width - 2 * border) != 1) ||
1344 height < 2 * border || height > 2 + maxSize ||
1345 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1346 _mesa_bitcount(height - 2 * border) != 1) ||
1347 level >= ctx->Const.MaxCubeTextureLevels) {
1348 /* bad width or height */
1349 return GL_FALSE;
1350 }
1351 return GL_TRUE;
1352 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1353 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1354 if (width < 2 * border || width > 2 + maxSize ||
1355 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1356 _mesa_bitcount(width - 2 * border) != 1) ||
1357 level >= ctx->Const.MaxTextureLevels) {
1358 /* bad width or level */
1359 return GL_FALSE;
1360 }
1361
1362 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1363 return GL_FALSE;
1364 }
1365 return GL_TRUE;
1366 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1367 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1368 if (width < 2 * border || width > 2 + maxSize ||
1369 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1370 _mesa_bitcount(width - 2 * border) != 1) ||
1371 height < 2 * border || height > 2 + maxSize ||
1372 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1373 _mesa_bitcount(height - 2 * border) != 1) ||
1374 level >= ctx->Const.MaxTextureLevels) {
1375 /* bad width or height or level */
1376 return GL_FALSE;
1377 }
1378 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1379 return GL_FALSE;
1380 }
1381 return GL_TRUE;
1382 default:
1383 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1384 return GL_FALSE;
1385 }
1386 }
1387
1388
1389 /**
1390 * Helper function to determine whether a target supports compressed textures
1391 */
1392 static GLboolean
1393 target_can_be_compressed(GLcontext *ctx, GLenum target)
1394 {
1395 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1396 || ((ctx->Extensions.ARB_texture_cube_map &&
1397 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1398 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1399 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1400 || ((ctx->Extensions.MESA_texture_array &&
1401 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1402 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1403 }
1404
1405
1406 /**
1407 * Test the glTexImage[123]D() parameters for errors.
1408 *
1409 * \param ctx GL context.
1410 * \param target texture target given by the user.
1411 * \param level image level given by the user.
1412 * \param internalFormat internal format given by the user.
1413 * \param format pixel data format given by the user.
1414 * \param type pixel data type given by the user.
1415 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1416 * \param width image width given by the user.
1417 * \param height image height given by the user.
1418 * \param depth image depth given by the user.
1419 * \param border image border given by the user.
1420 *
1421 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1422 *
1423 * Verifies each of the parameters against the constants specified in
1424 * __GLcontextRec::Const and the supported extensions, and according to the
1425 * OpenGL specification.
1426 */
1427 static GLboolean
1428 texture_error_check( GLcontext *ctx, GLenum target,
1429 GLint level, GLint internalFormat,
1430 GLenum format, GLenum type,
1431 GLuint dimensions,
1432 GLint width, GLint height,
1433 GLint depth, GLint border )
1434 {
1435 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1436 GLboolean sizeOK = GL_TRUE;
1437 GLboolean colorFormat, indexFormat;
1438 GLenum proxy_target;
1439
1440 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1441 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1442 if (!isProxy) {
1443 _mesa_error(ctx, GL_INVALID_VALUE,
1444 "glTexImage%dD(level=%d)", dimensions, level);
1445 }
1446 return GL_TRUE;
1447 }
1448
1449 /* Check border */
1450 if (border < 0 || border > 1 ||
1451 ((target == GL_TEXTURE_RECTANGLE_NV ||
1452 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1453 if (!isProxy) {
1454 _mesa_error(ctx, GL_INVALID_VALUE,
1455 "glTexImage%dD(border=%d)", dimensions, border);
1456 }
1457 return GL_TRUE;
1458 }
1459
1460 if (width < 0 || height < 0 || depth < 0) {
1461 if (!isProxy) {
1462 _mesa_error(ctx, GL_INVALID_VALUE,
1463 "glTexImage%dD(width, height or depth < 0)", dimensions);
1464 }
1465 return GL_TRUE;
1466 }
1467
1468 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1469 * level, width, height and depth.
1470 */
1471 if (dimensions == 1) {
1472 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1473 proxy_target = GL_PROXY_TEXTURE_1D;
1474 height = 1;
1475 width = 1;
1476 }
1477 else {
1478 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1479 return GL_TRUE;
1480 }
1481 }
1482 else if (dimensions == 2) {
1483 depth = 1;
1484 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1485 proxy_target = GL_PROXY_TEXTURE_2D;
1486 }
1487 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1488 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1489 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1490 if (!ctx->Extensions.ARB_texture_cube_map) {
1491 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1492 return GL_TRUE;
1493 }
1494 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1495 sizeOK = (width == height);
1496 }
1497 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1498 target == GL_TEXTURE_RECTANGLE_NV) {
1499 if (!ctx->Extensions.NV_texture_rectangle) {
1500 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1501 return GL_TRUE;
1502 }
1503 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1504 }
1505 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1506 target == GL_TEXTURE_1D_ARRAY_EXT) {
1507 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1508 }
1509 else {
1510 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1511 return GL_TRUE;
1512 }
1513 }
1514 else if (dimensions == 3) {
1515 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1516 proxy_target = GL_PROXY_TEXTURE_3D;
1517 }
1518 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1519 target == GL_TEXTURE_2D_ARRAY_EXT) {
1520 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1521 }
1522 else {
1523 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1524 return GL_TRUE;
1525 }
1526 }
1527 else {
1528 _mesa_problem( ctx, "bad dims in texture_error_check" );
1529 return GL_TRUE;
1530 }
1531
1532 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1533 internalFormat, format,
1534 type, width, height,
1535 depth, border);
1536 if (!sizeOK) {
1537 if (!isProxy) {
1538 _mesa_error(ctx, GL_INVALID_VALUE,
1539 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1540 dimensions, level, width, height, depth);
1541 }
1542 return GL_TRUE;
1543 }
1544
1545 /* Check internalFormat */
1546 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1547 if (!isProxy) {
1548 _mesa_error(ctx, GL_INVALID_VALUE,
1549 "glTexImage%dD(internalFormat=0x%x)",
1550 dimensions, internalFormat);
1551 }
1552 return GL_TRUE;
1553 }
1554
1555 /* Check incoming image format and type */
1556 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1557 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1558 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1559 */
1560 if (!isProxy) {
1561 _mesa_error(ctx, GL_INVALID_OPERATION,
1562 "glTexImage%dD(format or type)", dimensions);
1563 }
1564 return GL_TRUE;
1565 }
1566
1567 /* make sure internal format and format basically agree */
1568 colorFormat = is_color_format(format);
1569 indexFormat = is_index_format(format);
1570 if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1571 (is_index_format(internalFormat) && !indexFormat) ||
1572 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1573 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1574 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
1575 if (!isProxy)
1576 _mesa_error(ctx, GL_INVALID_OPERATION,
1577 "glTexImage(internalFormat/format)");
1578 return GL_TRUE;
1579 }
1580
1581 /* additional checks for ycbcr textures */
1582 if (internalFormat == GL_YCBCR_MESA) {
1583 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1584 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1585 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1586 char message[100];
1587 _mesa_sprintf(message,
1588 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1589 _mesa_error(ctx, GL_INVALID_ENUM, message);
1590 return GL_TRUE; /* error */
1591 }
1592 if (target != GL_TEXTURE_2D &&
1593 target != GL_PROXY_TEXTURE_2D &&
1594 target != GL_TEXTURE_RECTANGLE_NV &&
1595 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1596 if (!isProxy)
1597 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1598 return GL_TRUE;
1599 }
1600 if (border != 0) {
1601 if (!isProxy) {
1602 char message[100];
1603 _mesa_sprintf(message,
1604 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1605 dimensions, border);
1606 _mesa_error(ctx, GL_INVALID_VALUE, message);
1607 }
1608 return GL_TRUE;
1609 }
1610 }
1611
1612 /* additional checks for depth textures */
1613 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1614 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1615 if (target != GL_TEXTURE_1D &&
1616 target != GL_PROXY_TEXTURE_1D &&
1617 target != GL_TEXTURE_2D &&
1618 target != GL_PROXY_TEXTURE_2D &&
1619 target != GL_TEXTURE_RECTANGLE_ARB &&
1620 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1621 if (!isProxy)
1622 _mesa_error(ctx, GL_INVALID_ENUM,
1623 "glTexImage(target/internalFormat)");
1624 return GL_TRUE;
1625 }
1626 }
1627
1628 /* additional checks for compressed textures */
1629 if (is_compressed_format(ctx, internalFormat)) {
1630 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1631 _mesa_error(ctx, GL_INVALID_ENUM,
1632 "glTexImage%d(target)", dimensions);
1633 return GL_TRUE;
1634 }
1635 if (border != 0) {
1636 if (!isProxy) {
1637 _mesa_error(ctx, GL_INVALID_OPERATION,
1638 "glTexImage%D(border!=0)", dimensions);
1639 }
1640 return GL_TRUE;
1641 }
1642 }
1643
1644 /* if we get here, the parameters are OK */
1645 return GL_FALSE;
1646 }
1647
1648
1649 /**
1650 * Test glTexSubImage[123]D() parameters for errors.
1651 *
1652 * \param ctx GL context.
1653 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1654 * \param target texture target given by the user.
1655 * \param level image level given by the user.
1656 * \param xoffset sub-image x offset given by the user.
1657 * \param yoffset sub-image y offset given by the user.
1658 * \param zoffset sub-image z offset given by the user.
1659 * \param format pixel data format given by the user.
1660 * \param type pixel data type given by the user.
1661 * \param width image width given by the user.
1662 * \param height image height given by the user.
1663 * \param depth image depth given by the user.
1664 *
1665 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1666 *
1667 * Verifies each of the parameters against the constants specified in
1668 * __GLcontextRec::Const and the supported extensions, and according to the
1669 * OpenGL specification.
1670 */
1671 static GLboolean
1672 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1673 GLenum target, GLint level,
1674 GLint xoffset, GLint yoffset, GLint zoffset,
1675 GLint width, GLint height, GLint depth,
1676 GLenum format, GLenum type )
1677 {
1678 /* Check target */
1679 if (dimensions == 1) {
1680 if (target != GL_TEXTURE_1D) {
1681 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1682 return GL_TRUE;
1683 }
1684 }
1685 else if (dimensions == 2) {
1686 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1687 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1688 if (!ctx->Extensions.ARB_texture_cube_map) {
1689 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1690 return GL_TRUE;
1691 }
1692 }
1693 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1694 if (!ctx->Extensions.NV_texture_rectangle) {
1695 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1696 return GL_TRUE;
1697 }
1698 }
1699 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1700 if (!ctx->Extensions.MESA_texture_array) {
1701 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1702 return GL_TRUE;
1703 }
1704 }
1705 else if (target != GL_TEXTURE_2D) {
1706 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1707 return GL_TRUE;
1708 }
1709 }
1710 else if (dimensions == 3) {
1711 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1712 if (!ctx->Extensions.MESA_texture_array) {
1713 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1714 return GL_TRUE;
1715 }
1716 }
1717 else if (target != GL_TEXTURE_3D) {
1718 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1719 return GL_TRUE;
1720 }
1721 }
1722 else {
1723 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1724 return GL_TRUE;
1725 }
1726
1727 /* Basic level check */
1728 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1729 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1730 return GL_TRUE;
1731 }
1732
1733 if (width < 0) {
1734 _mesa_error(ctx, GL_INVALID_VALUE,
1735 "glTexSubImage%dD(width=%d)", dimensions, width);
1736 return GL_TRUE;
1737 }
1738 if (height < 0 && dimensions > 1) {
1739 _mesa_error(ctx, GL_INVALID_VALUE,
1740 "glTexSubImage%dD(height=%d)", dimensions, height);
1741 return GL_TRUE;
1742 }
1743 if (depth < 0 && dimensions > 2) {
1744 _mesa_error(ctx, GL_INVALID_VALUE,
1745 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1746 return GL_TRUE;
1747 }
1748
1749 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1750 _mesa_error(ctx, GL_INVALID_ENUM,
1751 "glTexSubImage%dD(format or type)", dimensions);
1752 return GL_TRUE;
1753 }
1754
1755 return GL_FALSE;
1756 }
1757
1758 static GLboolean
1759 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1760 GLenum target, GLint level,
1761 GLint xoffset, GLint yoffset, GLint zoffset,
1762 GLint width, GLint height, GLint depth,
1763 GLenum format, GLenum type,
1764 const struct gl_texture_image *destTex )
1765 {
1766 if (!destTex) {
1767 /* undefined image level */
1768 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1769 return GL_TRUE;
1770 }
1771
1772 if (xoffset < -((GLint)destTex->Border)) {
1773 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1774 dimensions);
1775 return GL_TRUE;
1776 }
1777 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1778 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1779 dimensions);
1780 return GL_TRUE;
1781 }
1782 if (dimensions > 1) {
1783 if (yoffset < -((GLint)destTex->Border)) {
1784 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1785 dimensions);
1786 return GL_TRUE;
1787 }
1788 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1789 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1790 dimensions);
1791 return GL_TRUE;
1792 }
1793 }
1794 if (dimensions > 2) {
1795 if (zoffset < -((GLint)destTex->Border)) {
1796 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1797 return GL_TRUE;
1798 }
1799 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1800 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1801 return GL_TRUE;
1802 }
1803 }
1804
1805 #if FEATURE_EXT_texture_sRGB
1806 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1807 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1808 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1809 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1810 if ((width & 0x3) || (height & 0x3) ||
1811 (xoffset & 0x3) || (yoffset & 0x3))
1812 _mesa_error(ctx, GL_INVALID_OPERATION,
1813 "glTexSubImage%dD(size or offset not multiple of 4)",
1814 dimensions);
1815 return GL_TRUE;
1816 }
1817 #endif
1818
1819 if (destTex->IsCompressed) {
1820 if (!target_can_be_compressed(ctx, target)) {
1821 _mesa_error(ctx, GL_INVALID_ENUM,
1822 "glTexSubImage%D(target)", dimensions);
1823 return GL_TRUE;
1824 }
1825 /* offset must be multiple of 4 */
1826 if ((xoffset & 3) || (yoffset & 3)) {
1827 _mesa_error(ctx, GL_INVALID_OPERATION,
1828 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1829 return GL_TRUE;
1830 }
1831 /* size must be multiple of 4 or equal to whole texture size */
1832 if ((width & 3) && (GLuint) width != destTex->Width) {
1833 _mesa_error(ctx, GL_INVALID_OPERATION,
1834 "glTexSubImage%D(width)", dimensions);
1835 return GL_TRUE;
1836 }
1837 if ((height & 3) && (GLuint) height != destTex->Height) {
1838 _mesa_error(ctx, GL_INVALID_OPERATION,
1839 "glTexSubImage%D(width)", dimensions);
1840 return GL_TRUE;
1841 }
1842 }
1843
1844 return GL_FALSE;
1845 }
1846
1847
1848 /**
1849 * Test glCopyTexImage[12]D() parameters for errors.
1850 *
1851 * \param ctx GL context.
1852 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1853 * \param target texture target given by the user.
1854 * \param level image level given by the user.
1855 * \param internalFormat internal format given by the user.
1856 * \param width image width given by the user.
1857 * \param height image height given by the user.
1858 * \param depth image depth given by the user.
1859 * \param border texture border.
1860 *
1861 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1862 *
1863 * Verifies each of the parameters against the constants specified in
1864 * __GLcontextRec::Const and the supported extensions, and according to the
1865 * OpenGL specification.
1866 */
1867 static GLboolean
1868 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1869 GLenum target, GLint level, GLint internalFormat,
1870 GLint width, GLint height, GLint border )
1871 {
1872 GLenum type;
1873 GLboolean sizeOK;
1874 GLint format;
1875
1876 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1877 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1878 _mesa_error(ctx, GL_INVALID_VALUE,
1879 "glCopyTexImage%dD(level=%d)", dimensions, level);
1880 return GL_TRUE;
1881 }
1882
1883 /* Check that the source buffer is complete */
1884 if (ctx->ReadBuffer->Name) {
1885 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1886 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1887 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1888 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1889 return GL_TRUE;
1890 }
1891 }
1892
1893 /* Check border */
1894 if (border < 0 || border > 1 ||
1895 ((target == GL_TEXTURE_RECTANGLE_NV ||
1896 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1897 return GL_TRUE;
1898 }
1899
1900 format = _mesa_base_tex_format(ctx, internalFormat);
1901 if (format < 0) {
1902 _mesa_error(ctx, GL_INVALID_VALUE,
1903 "glCopyTexImage%dD(internalFormat)", dimensions);
1904 return GL_TRUE;
1905 }
1906
1907 /* NOTE: the format and type aren't really significant for
1908 * TestProxyTexImage(). Only the internalformat really matters.
1909 if (!_mesa_source_buffer_exists(ctx, format)) {
1910 _mesa_error(ctx, GL_INVALID_OPERATION,
1911 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1912 return GL_TRUE;
1913 }
1914
1915 */
1916 type = GL_FLOAT;
1917
1918 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1919 * level, width, height and depth.
1920 */
1921 if (dimensions == 1) {
1922 if (target == GL_TEXTURE_1D) {
1923 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1924 level, internalFormat,
1925 format, type,
1926 width, 1, 1, border);
1927 }
1928 else {
1929 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1930 return GL_TRUE;
1931 }
1932 }
1933 else if (dimensions == 2) {
1934 if (target == GL_TEXTURE_2D) {
1935 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1936 level, internalFormat,
1937 format, type,
1938 width, height, 1, border);
1939 }
1940 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1941 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1942 if (!ctx->Extensions.ARB_texture_cube_map) {
1943 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1944 return GL_TRUE;
1945 }
1946 sizeOK = (width == height) &&
1947 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1948 level, internalFormat, format, type,
1949 width, height, 1, border);
1950 }
1951 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1952 if (!ctx->Extensions.NV_texture_rectangle) {
1953 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1954 return GL_TRUE;
1955 }
1956 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1957 GL_PROXY_TEXTURE_RECTANGLE_NV,
1958 level, internalFormat,
1959 format, type,
1960 width, height, 1, border);
1961 }
1962 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1963 if (!ctx->Extensions.MESA_texture_array) {
1964 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1965 return GL_TRUE;
1966 }
1967 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1968 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1969 level, internalFormat,
1970 format, type,
1971 width, height, 1, border);
1972 }
1973 else {
1974 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1975 return GL_TRUE;
1976 }
1977 }
1978 else {
1979 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1980 return GL_TRUE;
1981 }
1982
1983 if (!sizeOK) {
1984 if (dimensions == 1) {
1985 _mesa_error(ctx, GL_INVALID_VALUE,
1986 "glCopyTexImage1D(width=%d)", width);
1987 }
1988 else {
1989 ASSERT(dimensions == 2);
1990 _mesa_error(ctx, GL_INVALID_VALUE,
1991 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1992 }
1993 return GL_TRUE;
1994 }
1995
1996 if (is_compressed_format(ctx, internalFormat)) {
1997 if (target != GL_TEXTURE_2D) {
1998 _mesa_error(ctx, GL_INVALID_ENUM,
1999 "glCopyTexImage%d(target)", dimensions);
2000 return GL_TRUE;
2001 }
2002 if (border != 0) {
2003 _mesa_error(ctx, GL_INVALID_OPERATION,
2004 "glCopyTexImage%D(border!=0)", dimensions);
2005 return GL_TRUE;
2006 }
2007 }
2008 else if (is_depth_format(internalFormat)) {
2009 /* make sure we have depth/stencil buffers */
2010 if (!ctx->ReadBuffer->_DepthBuffer) {
2011 _mesa_error(ctx, GL_INVALID_OPERATION,
2012 "glCopyTexImage%D(no depth)", dimensions);
2013 return GL_TRUE;
2014 }
2015 }
2016 else if (is_depthstencil_format(internalFormat)) {
2017 /* make sure we have depth/stencil buffers */
2018 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2019 _mesa_error(ctx, GL_INVALID_OPERATION,
2020 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
2021 return GL_TRUE;
2022 }
2023 }
2024
2025 /* if we get here, the parameters are OK */
2026 return GL_FALSE;
2027 }
2028
2029
2030 /**
2031 * Test glCopyTexSubImage[12]D() parameters for errors.
2032 *
2033 * \param ctx GL context.
2034 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2035 * \param target texture target given by the user.
2036 * \param level image level given by the user.
2037 * \param xoffset sub-image x offset given by the user.
2038 * \param yoffset sub-image y offset given by the user.
2039 * \param zoffset sub-image z offset given by the user.
2040 * \param width image width given by the user.
2041 * \param height image height given by the user.
2042 *
2043 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2044 *
2045 * Verifies each of the parameters against the constants specified in
2046 * __GLcontextRec::Const and the supported extensions, and according to the
2047 * OpenGL specification.
2048 */
2049 static GLboolean
2050 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
2051 GLenum target, GLint level,
2052 GLint xoffset, GLint yoffset, GLint zoffset,
2053 GLsizei width, GLsizei height)
2054 {
2055 /* Check target */
2056 /* Check that the source buffer is complete */
2057 if (ctx->ReadBuffer->Name) {
2058 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2059 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2060 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2061 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2062 return GL_TRUE;
2063 }
2064 }
2065
2066 if (dimensions == 1) {
2067 if (target != GL_TEXTURE_1D) {
2068 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2069 return GL_TRUE;
2070 }
2071 }
2072 else if (dimensions == 2) {
2073 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2074 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2075 if (!ctx->Extensions.ARB_texture_cube_map) {
2076 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2077 return GL_TRUE;
2078 }
2079 }
2080 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2081 if (!ctx->Extensions.NV_texture_rectangle) {
2082 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2083 return GL_TRUE;
2084 }
2085 }
2086 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2087 if (!ctx->Extensions.MESA_texture_array) {
2088 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2089 return GL_TRUE;
2090 }
2091 }
2092 else if (target != GL_TEXTURE_2D) {
2093 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2094 return GL_TRUE;
2095 }
2096 }
2097 else if (dimensions == 3) {
2098 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2099 (!ctx->Extensions.MESA_texture_array))
2100 && (target != GL_TEXTURE_3D)) {
2101 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2102 return GL_TRUE;
2103 }
2104 }
2105
2106 /* Check level */
2107 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2108 _mesa_error(ctx, GL_INVALID_VALUE,
2109 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2110 return GL_TRUE;
2111 }
2112
2113 /* Check size */
2114 if (width < 0) {
2115 _mesa_error(ctx, GL_INVALID_VALUE,
2116 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2117 return GL_TRUE;
2118 }
2119 if (dimensions > 1 && height < 0) {
2120 _mesa_error(ctx, GL_INVALID_VALUE,
2121 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2122 return GL_TRUE;
2123 }
2124
2125 return GL_FALSE;
2126 }
2127
2128 static GLboolean
2129 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2130 GLenum target, GLint level,
2131 GLint xoffset, GLint yoffset, GLint zoffset,
2132 GLsizei width, GLsizei height,
2133 const struct gl_texture_image *teximage )
2134 {
2135 if (!teximage) {
2136 _mesa_error(ctx, GL_INVALID_OPERATION,
2137 "glCopyTexSubImage%dD(undefined texture level: %d)",
2138 dimensions, level);
2139 return GL_TRUE;
2140 }
2141
2142 if (xoffset < -((GLint)teximage->Border)) {
2143 _mesa_error(ctx, GL_INVALID_VALUE,
2144 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2145 return GL_TRUE;
2146 }
2147 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2148 _mesa_error(ctx, GL_INVALID_VALUE,
2149 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2150 return GL_TRUE;
2151 }
2152 if (dimensions > 1) {
2153 if (yoffset < -((GLint)teximage->Border)) {
2154 _mesa_error(ctx, GL_INVALID_VALUE,
2155 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2156 return GL_TRUE;
2157 }
2158 /* NOTE: we're adding the border here, not subtracting! */
2159 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2160 _mesa_error(ctx, GL_INVALID_VALUE,
2161 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2162 return GL_TRUE;
2163 }
2164 }
2165
2166 if (dimensions > 2) {
2167 if (zoffset < -((GLint)teximage->Border)) {
2168 _mesa_error(ctx, GL_INVALID_VALUE,
2169 "glCopyTexSubImage%dD(zoffset)", dimensions);
2170 return GL_TRUE;
2171 }
2172 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2173 _mesa_error(ctx, GL_INVALID_VALUE,
2174 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2175 return GL_TRUE;
2176 }
2177 }
2178
2179 if (teximage->IsCompressed) {
2180 if (target != GL_TEXTURE_2D) {
2181 _mesa_error(ctx, GL_INVALID_ENUM,
2182 "glCopyTexSubImage%d(target)", dimensions);
2183 return GL_TRUE;
2184 }
2185 /* offset must be multiple of 4 */
2186 if ((xoffset & 3) || (yoffset & 3)) {
2187 _mesa_error(ctx, GL_INVALID_VALUE,
2188 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2189 return GL_TRUE;
2190 }
2191 /* size must be multiple of 4 */
2192 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2193 _mesa_error(ctx, GL_INVALID_VALUE,
2194 "glCopyTexSubImage%D(width)", dimensions);
2195 return GL_TRUE;
2196 }
2197 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2198 _mesa_error(ctx, GL_INVALID_VALUE,
2199 "glCopyTexSubImage%D(height)", dimensions);
2200 return GL_TRUE;
2201 }
2202 }
2203
2204 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2205 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2206 return GL_TRUE;
2207 }
2208
2209 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2210 _mesa_error(ctx, GL_INVALID_OPERATION,
2211 "glCopyTexSubImage%dD(missing readbuffer)", dimensions);
2212 return GL_TRUE;
2213 }
2214
2215 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2216 if (!ctx->ReadBuffer->_DepthBuffer) {
2217 _mesa_error(ctx, GL_INVALID_OPERATION,
2218 "glCopyTexSubImage%D(no depth buffer)",
2219 dimensions);
2220 return GL_TRUE;
2221 }
2222 }
2223 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2224 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2225 _mesa_error(ctx, GL_INVALID_OPERATION,
2226 "glCopyTexSubImage%D(no depth/stencil buffer)",
2227 dimensions);
2228 return GL_TRUE;
2229 }
2230 }
2231
2232 /* if we get here, the parameters are OK */
2233 return GL_FALSE;
2234 }
2235
2236
2237 /**
2238 * Get texture image. Called by glGetTexImage.
2239 *
2240 * \param target texture target.
2241 * \param level image level.
2242 * \param format pixel data format for returned image.
2243 * \param type pixel data type for returned image.
2244 * \param pixels returned pixel data.
2245 */
2246 void GLAPIENTRY
2247 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2248 GLenum type, GLvoid *pixels )
2249 {
2250 const struct gl_texture_unit *texUnit;
2251 struct gl_texture_object *texObj;
2252 struct gl_texture_image *texImage;
2253 GLint maxLevels = 0;
2254 GET_CURRENT_CONTEXT(ctx);
2255 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2256
2257 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2258 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2259 if (!texObj || _mesa_is_proxy_texture(target)) {
2260 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2261 return;
2262 }
2263
2264 maxLevels = _mesa_max_texture_levels(ctx, target);
2265 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2266
2267 if (level < 0 || level >= maxLevels) {
2268 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2269 return;
2270 }
2271
2272 if (_mesa_sizeof_packed_type(type) <= 0) {
2273 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2274 return;
2275 }
2276
2277 if (_mesa_components_in_format(format) <= 0 ||
2278 format == GL_STENCIL_INDEX) {
2279 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2280 return;
2281 }
2282
2283 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2284 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2285 return;
2286 }
2287
2288 if (!ctx->Extensions.SGIX_depth_texture &&
2289 !ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2290 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2291 return;
2292 }
2293
2294 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2295 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2296 return;
2297 }
2298
2299 if (!ctx->Extensions.EXT_packed_depth_stencil
2300 && is_depthstencil_format(format)) {
2301 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2302 return;
2303 }
2304
2305 if (!pixels)
2306 return;
2307
2308 _mesa_lock_texture(ctx, texObj);
2309 {
2310 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2311 if (!texImage) {
2312 /* invalid mipmap level, not an error */
2313 goto out;
2314 }
2315
2316
2317 /* Make sure the requested image format is compatible with the
2318 * texture's format. Note that a color index texture can be converted
2319 * to RGBA so that combo is allowed.
2320 */
2321 if (is_color_format(format)
2322 && !is_color_format(texImage->TexFormat->BaseFormat)
2323 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2324 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2325 goto out;
2326 }
2327 else if (is_index_format(format)
2328 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2329 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2330 goto out;
2331 }
2332 else if (is_depth_format(format)
2333 && !is_depth_format(texImage->TexFormat->BaseFormat)
2334 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2335 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2336 goto out;
2337 }
2338 else if (is_ycbcr_format(format)
2339 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2340 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2341 goto out;
2342 }
2343 else if (is_depthstencil_format(format)
2344 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2345 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2346 goto out;
2347 }
2348
2349 if (ctx->Pack.BufferObj->Name) {
2350 /* packing texture image into a PBO */
2351 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2352 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2353 texImage->Height, texImage->Depth,
2354 format, type, pixels)) {
2355 _mesa_error(ctx, GL_INVALID_OPERATION,
2356 "glGetTexImage(invalid PBO access)");
2357 goto out;
2358 }
2359 }
2360
2361 /* typically, this will call _mesa_get_teximage() */
2362 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2363 texObj, texImage);
2364
2365 }
2366 out:
2367 _mesa_unlock_texture(ctx, texObj);
2368 }
2369
2370
2371
2372 /**
2373 * Check if the given texture image is bound to any framebuffer objects
2374 * and update/invalidate them.
2375 * XXX We're only checking the currently bound framebuffer object for now.
2376 * In the future, perhaps struct gl_texture_image should have a pointer (or
2377 * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
2378 */
2379 static void
2380 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2381 GLuint face, GLuint level)
2382 {
2383 if (ctx->DrawBuffer->Name) {
2384 GLuint i;
2385 for (i = 0; i < BUFFER_COUNT; i++) {
2386 struct gl_renderbuffer_attachment *att =
2387 ctx->DrawBuffer->Attachment + i;
2388 if (att->Type == GL_TEXTURE &&
2389 att->Texture == texObj &&
2390 att->TextureLevel == level &&
2391 att->CubeMapFace == face) {
2392 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2393 /* Tell driver about the new renderbuffer texture */
2394 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2395 }
2396 }
2397 }
2398 }
2399
2400
2401
2402 /*
2403 * Called from the API. Note that width includes the border.
2404 */
2405 void GLAPIENTRY
2406 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2407 GLsizei width, GLint border, GLenum format,
2408 GLenum type, const GLvoid *pixels )
2409 {
2410 GLsizei postConvWidth = width;
2411 GET_CURRENT_CONTEXT(ctx);
2412 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2413
2414 if (is_color_format(internalFormat)) {
2415 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2416 }
2417
2418 if (target == GL_TEXTURE_1D) {
2419 /* non-proxy target */
2420 struct gl_texture_unit *texUnit;
2421 struct gl_texture_object *texObj;
2422 struct gl_texture_image *texImage;
2423 const GLuint face = texture_face(target);
2424
2425 if (texture_error_check(ctx, target, level, internalFormat,
2426 format, type, 1, postConvWidth, 1, 1, border)) {
2427 return; /* error was recorded */
2428 }
2429
2430 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2431 _mesa_update_state(ctx);
2432
2433 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2434 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2435 _mesa_lock_texture(ctx, texObj);
2436 {
2437 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2438 if (!texImage) {
2439 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2440 goto out;
2441 }
2442
2443 if (texImage->Data) {
2444 ctx->Driver.FreeTexImageData( ctx, texImage );
2445 }
2446
2447 ASSERT(texImage->Data == NULL);
2448
2449 clear_teximage_fields(texImage); /* not really needed, but helpful */
2450 _mesa_init_teximage_fields(ctx, target, texImage,
2451 postConvWidth, 1, 1,
2452 border, internalFormat);
2453
2454 ASSERT(ctx->Driver.TexImage1D);
2455
2456 /* Give the texture to the driver! <pixels> may be null! */
2457 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2458 width, border, format, type, pixels,
2459 &ctx->Unpack, texObj, texImage);
2460
2461 ASSERT(texImage->TexFormat);
2462
2463 update_fbo_texture(ctx, texObj, face, level);
2464
2465 /* state update */
2466 texObj->_Complete = GL_FALSE;
2467 ctx->NewState |= _NEW_TEXTURE;
2468 }
2469 out:
2470 _mesa_unlock_texture(ctx, texObj);
2471 }
2472 else if (target == GL_PROXY_TEXTURE_1D) {
2473 /* Proxy texture: check for errors and update proxy state */
2474 struct gl_texture_image *texImage;
2475 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2476 if (texture_error_check(ctx, target, level, internalFormat,
2477 format, type, 1, postConvWidth, 1, 1, border)) {
2478 /* when error, clear all proxy texture image parameters */
2479 if (texImage)
2480 clear_teximage_fields(texImage);
2481 }
2482 else {
2483 /* no error, set the tex image parameters */
2484 ASSERT(texImage);
2485 _mesa_init_teximage_fields(ctx, target, texImage,
2486 postConvWidth, 1, 1,
2487 border, internalFormat);
2488 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2489 internalFormat, format, type);
2490 }
2491 }
2492 else {
2493 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2494 return;
2495 }
2496 }
2497
2498
2499 void GLAPIENTRY
2500 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2501 GLsizei width, GLsizei height, GLint border,
2502 GLenum format, GLenum type,
2503 const GLvoid *pixels )
2504 {
2505 GLsizei postConvWidth = width, postConvHeight = height;
2506 GET_CURRENT_CONTEXT(ctx);
2507 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2508
2509 if (is_color_format(internalFormat)) {
2510 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2511 &postConvHeight);
2512 }
2513
2514 if (target == GL_TEXTURE_2D ||
2515 (ctx->Extensions.ARB_texture_cube_map &&
2516 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2517 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2518 (ctx->Extensions.NV_texture_rectangle &&
2519 target == GL_TEXTURE_RECTANGLE_NV) ||
2520 (ctx->Extensions.MESA_texture_array &&
2521 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2522 /* non-proxy target */
2523 struct gl_texture_unit *texUnit;
2524 struct gl_texture_object *texObj;
2525 struct gl_texture_image *texImage;
2526 const GLuint face = texture_face(target);
2527
2528 if (texture_error_check(ctx, target, level, internalFormat,
2529 format, type, 2, postConvWidth, postConvHeight,
2530 1, border)) {
2531 return; /* error was recorded */
2532 }
2533
2534 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2535 _mesa_update_state(ctx);
2536
2537 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2538 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2539 _mesa_lock_texture(ctx, texObj);
2540 {
2541 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2542 if (!texImage) {
2543 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2544 goto out;
2545 }
2546
2547 if (texImage->Data) {
2548 ctx->Driver.FreeTexImageData( ctx, texImage );
2549 }
2550
2551 ASSERT(texImage->Data == NULL);
2552 clear_teximage_fields(texImage); /* not really needed, but helpful */
2553 _mesa_init_teximage_fields(ctx, target, texImage,
2554 postConvWidth, postConvHeight, 1,
2555 border, internalFormat);
2556
2557 ASSERT(ctx->Driver.TexImage2D);
2558
2559 /* Give the texture to the driver! <pixels> may be null! */
2560 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2561 width, height, border, format, type, pixels,
2562 &ctx->Unpack, texObj, texImage);
2563
2564 ASSERT(texImage->TexFormat);
2565
2566 update_fbo_texture(ctx, texObj, face, level);
2567
2568 /* state update */
2569 texObj->_Complete = GL_FALSE;
2570 ctx->NewState |= _NEW_TEXTURE;
2571 }
2572 out:
2573 _mesa_unlock_texture(ctx, texObj);
2574 }
2575 else if (target == GL_PROXY_TEXTURE_2D ||
2576 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2577 ctx->Extensions.ARB_texture_cube_map) ||
2578 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2579 ctx->Extensions.NV_texture_rectangle) ||
2580 (ctx->Extensions.MESA_texture_array &&
2581 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2582 /* Proxy texture: check for errors and update proxy state */
2583 struct gl_texture_image *texImage;
2584 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2585 if (texture_error_check(ctx, target, level, internalFormat,
2586 format, type, 2, postConvWidth, postConvHeight,
2587 1, border)) {
2588 /* when error, clear all proxy texture image parameters */
2589 if (texImage)
2590 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2591 }
2592 else {
2593 /* no error, set the tex image parameters */
2594 _mesa_init_teximage_fields(ctx, target, texImage,
2595 postConvWidth, postConvHeight, 1,
2596 border, internalFormat);
2597 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2598 internalFormat, format, type);
2599 }
2600 }
2601 else {
2602 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2603 return;
2604 }
2605 }
2606
2607
2608 /*
2609 * Called by the API or display list executor.
2610 * Note that width and height include the border.
2611 */
2612 void GLAPIENTRY
2613 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2614 GLsizei width, GLsizei height, GLsizei depth,
2615 GLint border, GLenum format, GLenum type,
2616 const GLvoid *pixels )
2617 {
2618 GET_CURRENT_CONTEXT(ctx);
2619 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2620
2621 if (target == GL_TEXTURE_3D ||
2622 (ctx->Extensions.MESA_texture_array &&
2623 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2624 /* non-proxy target */
2625 struct gl_texture_unit *texUnit;
2626 struct gl_texture_object *texObj;
2627 struct gl_texture_image *texImage;
2628 const GLuint face = texture_face(target);
2629
2630 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2631 format, type, 3, width, height, depth, border)) {
2632 return; /* error was recorded */
2633 }
2634
2635 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2636 _mesa_update_state(ctx);
2637
2638 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2639 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2640 _mesa_lock_texture(ctx, texObj);
2641 {
2642 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2643 if (!texImage) {
2644 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2645 goto out;
2646 }
2647
2648 if (texImage->Data) {
2649 ctx->Driver.FreeTexImageData( ctx, texImage );
2650 }
2651
2652 ASSERT(texImage->Data == NULL);
2653 clear_teximage_fields(texImage); /* not really needed, but helpful */
2654 _mesa_init_teximage_fields(ctx, target, texImage,
2655 width, height, depth,
2656 border, internalFormat);
2657
2658 ASSERT(ctx->Driver.TexImage3D);
2659
2660 /* Give the texture to the driver! <pixels> may be null! */
2661 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2662 width, height, depth, border, format, type,
2663 pixels, &ctx->Unpack, texObj, texImage);
2664
2665 ASSERT(texImage->TexFormat);
2666
2667 update_fbo_texture(ctx, texObj, face, level);
2668
2669 /* state update */
2670 texObj->_Complete = GL_FALSE;
2671 ctx->NewState |= _NEW_TEXTURE;
2672 }
2673 out:
2674 _mesa_unlock_texture(ctx, texObj);
2675 }
2676 else if (target == GL_PROXY_TEXTURE_3D ||
2677 (ctx->Extensions.MESA_texture_array &&
2678 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2679 /* Proxy texture: check for errors and update proxy state */
2680 struct gl_texture_image *texImage;
2681 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2682 if (texture_error_check(ctx, target, level, internalFormat,
2683 format, type, 3, width, height, depth, border)) {
2684 /* when error, clear all proxy texture image parameters */
2685 if (texImage)
2686 clear_teximage_fields(texImage);
2687 }
2688 else {
2689 /* no error, set the tex image parameters */
2690 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2691 border, internalFormat);
2692 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2693 internalFormat, format, type);
2694 }
2695 }
2696 else {
2697 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2698 return;
2699 }
2700 }
2701
2702
2703 void GLAPIENTRY
2704 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2705 GLsizei width, GLsizei height, GLsizei depth,
2706 GLint border, GLenum format, GLenum type,
2707 const GLvoid *pixels )
2708 {
2709 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2710 depth, border, format, type, pixels);
2711 }
2712
2713
2714
2715 void GLAPIENTRY
2716 _mesa_TexSubImage1D( GLenum target, GLint level,
2717 GLint xoffset, GLsizei width,
2718 GLenum format, GLenum type,
2719 const GLvoid *pixels )
2720 {
2721 GLsizei postConvWidth = width;
2722 struct gl_texture_unit *texUnit;
2723 struct gl_texture_object *texObj;
2724 struct gl_texture_image *texImage = NULL;
2725 GET_CURRENT_CONTEXT(ctx);
2726 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2727
2728 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2729 _mesa_update_state(ctx);
2730
2731 /* XXX should test internal format */
2732 if (is_color_format(format)) {
2733 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2734 }
2735
2736 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2737 postConvWidth, 1, 1, format, type)) {
2738 return; /* error was detected */
2739 }
2740
2741
2742 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2743 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2744 assert(texObj);
2745
2746 _mesa_lock_texture(ctx, texObj);
2747 {
2748 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2749
2750 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2751 postConvWidth, 1, 1, format, type, texImage)) {
2752 goto out; /* error was detected */
2753 }
2754
2755 if (width == 0)
2756 goto out; /* no-op, not an error */
2757
2758 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2759 xoffset += texImage->Border;
2760
2761 ASSERT(ctx->Driver.TexSubImage1D);
2762 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2763 format, type, pixels, &ctx->Unpack,
2764 texObj, texImage);
2765 ctx->NewState |= _NEW_TEXTURE;
2766 }
2767 out:
2768 _mesa_unlock_texture(ctx, texObj);
2769 }
2770
2771
2772 void GLAPIENTRY
2773 _mesa_TexSubImage2D( GLenum target, GLint level,
2774 GLint xoffset, GLint yoffset,
2775 GLsizei width, GLsizei height,
2776 GLenum format, GLenum type,
2777 const GLvoid *pixels )
2778 {
2779 GLsizei postConvWidth = width, postConvHeight = height;
2780 struct gl_texture_unit *texUnit;
2781 struct gl_texture_object *texObj;
2782 struct gl_texture_image *texImage;
2783 GET_CURRENT_CONTEXT(ctx);
2784 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2785
2786 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2787 _mesa_update_state(ctx);
2788
2789 /* XXX should test internal format */
2790 if (is_color_format(format)) {
2791 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2792 &postConvHeight);
2793 }
2794
2795 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2796 postConvWidth, postConvHeight, 1, format, type)) {
2797 return; /* error was detected */
2798 }
2799
2800 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2801 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2802 _mesa_lock_texture(ctx, texObj);
2803 {
2804 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2805
2806 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2807 postConvWidth, postConvHeight, 1, format, type,
2808 texImage)) {
2809 goto out; /* error was detected */
2810 }
2811
2812 if (width == 0 || height == 0)
2813 goto out; /* no-op, not an error */
2814
2815 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2816 xoffset += texImage->Border;
2817 yoffset += texImage->Border;
2818
2819 ASSERT(ctx->Driver.TexSubImage2D);
2820 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2821 width, height, format, type, pixels,
2822 &ctx->Unpack, texObj, texImage);
2823 ctx->NewState |= _NEW_TEXTURE;
2824 }
2825 out:
2826 _mesa_unlock_texture(ctx, texObj);
2827 }
2828
2829
2830
2831 void GLAPIENTRY
2832 _mesa_TexSubImage3D( GLenum target, GLint level,
2833 GLint xoffset, GLint yoffset, GLint zoffset,
2834 GLsizei width, GLsizei height, GLsizei depth,
2835 GLenum format, GLenum type,
2836 const GLvoid *pixels )
2837 {
2838 struct gl_texture_unit *texUnit;
2839 struct gl_texture_object *texObj;
2840 struct gl_texture_image *texImage;
2841 GET_CURRENT_CONTEXT(ctx);
2842 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2843
2844 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2845 _mesa_update_state(ctx);
2846
2847 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2848 width, height, depth, format, type)) {
2849 return; /* error was detected */
2850 }
2851
2852 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2853 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2854
2855 _mesa_lock_texture(ctx, texObj);
2856 {
2857 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2858
2859 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2860 width, height, depth, format, type, texImage)) {
2861 goto out; /* error was detected */
2862 }
2863
2864 if (width == 0 || height == 0 || height == 0)
2865 goto out; /* no-op, not an error */
2866
2867 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2868 xoffset += texImage->Border;
2869 yoffset += texImage->Border;
2870 zoffset += texImage->Border;
2871
2872 ASSERT(ctx->Driver.TexSubImage3D);
2873 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2874 xoffset, yoffset, zoffset,
2875 width, height, depth,
2876 format, type, pixels,
2877 &ctx->Unpack, texObj, texImage );
2878 ctx->NewState |= _NEW_TEXTURE;
2879 }
2880 out:
2881 _mesa_unlock_texture(ctx, texObj);
2882 }
2883
2884
2885
2886 void GLAPIENTRY
2887 _mesa_CopyTexImage1D( GLenum target, GLint level,
2888 GLenum internalFormat,
2889 GLint x, GLint y,
2890 GLsizei width, GLint border )
2891 {
2892 struct gl_texture_unit *texUnit;
2893 struct gl_texture_object *texObj;
2894 struct gl_texture_image *texImage;
2895 GLsizei postConvWidth = width;
2896 const GLuint face = texture_face(target);
2897 GET_CURRENT_CONTEXT(ctx);
2898 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2899
2900 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2901 _mesa_update_state(ctx);
2902
2903 if (is_color_format(internalFormat)) {
2904 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2905 }
2906
2907 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2908 postConvWidth, 1, border))
2909 return;
2910
2911 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2912 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2913 _mesa_lock_texture(ctx, texObj);
2914 {
2915 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2916 if (!texImage) {
2917 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2918 goto out;
2919 }
2920
2921 if (texImage->Data) {
2922 ctx->Driver.FreeTexImageData( ctx, texImage );
2923 }
2924
2925 ASSERT(texImage->Data == NULL);
2926
2927 clear_teximage_fields(texImage); /* not really needed, but helpful */
2928 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2929 border, internalFormat);
2930
2931
2932 ASSERT(ctx->Driver.CopyTexImage1D);
2933 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2934 x, y, width, border);
2935
2936 ASSERT(texImage->TexFormat);
2937
2938 update_fbo_texture(ctx, texObj, face, level);
2939
2940 /* state update */
2941 texObj->_Complete = GL_FALSE;
2942 ctx->NewState |= _NEW_TEXTURE;
2943 }
2944 out:
2945 _mesa_unlock_texture(ctx, texObj);
2946 }
2947
2948
2949
2950 void GLAPIENTRY
2951 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2952 GLint x, GLint y, GLsizei width, GLsizei height,
2953 GLint border )
2954 {
2955 struct gl_texture_unit *texUnit;
2956 struct gl_texture_object *texObj;
2957 struct gl_texture_image *texImage;
2958 GLsizei postConvWidth = width, postConvHeight = height;
2959 const GLuint face = texture_face(target);
2960 GET_CURRENT_CONTEXT(ctx);
2961 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2962
2963 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2964 _mesa_update_state(ctx);
2965
2966 if (is_color_format(internalFormat)) {
2967 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2968 &postConvHeight);
2969 }
2970
2971 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2972 postConvWidth, postConvHeight, border))
2973 return;
2974
2975 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2976 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2977
2978 _mesa_lock_texture(ctx, texObj);
2979 {
2980 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2981
2982 if (!texImage) {
2983 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2984 goto out;
2985 }
2986
2987 if (texImage->Data) {
2988 ctx->Driver.FreeTexImageData( ctx, texImage );
2989 }
2990
2991 ASSERT(texImage->Data == NULL);
2992
2993 clear_teximage_fields(texImage); /* not really needed, but helpful */
2994 _mesa_init_teximage_fields(ctx, target, texImage,
2995 postConvWidth, postConvHeight, 1,
2996 border, internalFormat);
2997
2998 ASSERT(ctx->Driver.CopyTexImage2D);
2999 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
3000 x, y, width, height, border);
3001
3002 ASSERT(texImage->TexFormat);
3003
3004 update_fbo_texture(ctx, texObj, face, level);
3005
3006 /* state update */
3007 texObj->_Complete = GL_FALSE;
3008 ctx->NewState |= _NEW_TEXTURE;
3009 }
3010 out:
3011 _mesa_unlock_texture(ctx, texObj);
3012 }
3013
3014
3015 void GLAPIENTRY
3016 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3017 GLint xoffset, GLint x, GLint y, GLsizei width )
3018 {
3019 struct gl_texture_unit *texUnit;
3020 struct gl_texture_object *texObj;
3021 struct gl_texture_image *texImage;
3022 GLsizei postConvWidth = width;
3023 GET_CURRENT_CONTEXT(ctx);
3024 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3025
3026 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3027 _mesa_update_state(ctx);
3028
3029 /* XXX should test internal format */
3030 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3031
3032 if (copytexsubimage_error_check(ctx, 1, target, level,
3033 xoffset, 0, 0, postConvWidth, 1))
3034 return;
3035
3036 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3037 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3038
3039 _mesa_lock_texture(ctx, texObj);
3040 {
3041 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3042
3043 if (copytexsubimage_error_check2(ctx, 1, target, level,
3044 xoffset, 0, 0, postConvWidth, 1,
3045 texImage))
3046 goto out;
3047
3048
3049 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3050 xoffset += texImage->Border;
3051
3052 ASSERT(ctx->Driver.CopyTexSubImage1D);
3053 (*ctx->Driver.CopyTexSubImage1D)(ctx, target, level, xoffset, x, y, width);
3054 ctx->NewState |= _NEW_TEXTURE;
3055 }
3056 out:
3057 _mesa_unlock_texture(ctx, texObj);
3058 }
3059
3060
3061
3062 void GLAPIENTRY
3063 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3064 GLint xoffset, GLint yoffset,
3065 GLint x, GLint y, GLsizei width, GLsizei height )
3066 {
3067 struct gl_texture_unit *texUnit;
3068 struct gl_texture_object *texObj;
3069 struct gl_texture_image *texImage;
3070 GLsizei postConvWidth = width, postConvHeight = height;
3071 GET_CURRENT_CONTEXT(ctx);
3072 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3073
3074 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3075 _mesa_update_state(ctx);
3076
3077 /* XXX should test internal format */
3078 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3079
3080 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
3081 postConvWidth, postConvHeight))
3082 return;
3083
3084 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3085 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3086
3087 _mesa_lock_texture(ctx, texObj);
3088 {
3089 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3090
3091 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3092 postConvWidth, postConvHeight, texImage))
3093 goto out;
3094
3095 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3096 xoffset += texImage->Border;
3097 yoffset += texImage->Border;
3098
3099 ASSERT(ctx->Driver.CopyTexSubImage2D);
3100 (*ctx->Driver.CopyTexSubImage2D)(ctx, target, level,
3101 xoffset, yoffset, x, y, width, height);
3102 ctx->NewState |= _NEW_TEXTURE;
3103 }
3104 out:
3105 _mesa_unlock_texture(ctx, texObj);
3106 }
3107
3108
3109
3110 void GLAPIENTRY
3111 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3112 GLint xoffset, GLint yoffset, GLint zoffset,
3113 GLint x, GLint y, GLsizei width, GLsizei height )
3114 {
3115 struct gl_texture_unit *texUnit;
3116 struct gl_texture_object *texObj;
3117 struct gl_texture_image *texImage;
3118 GLsizei postConvWidth = width, postConvHeight = height;
3119 GET_CURRENT_CONTEXT(ctx);
3120 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3121
3122 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3123 _mesa_update_state(ctx);
3124
3125 /* XXX should test internal format */
3126 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3127
3128 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
3129 zoffset, postConvWidth, postConvHeight))
3130 return;
3131
3132 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3133 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3134
3135 _mesa_lock_texture(ctx, texObj);
3136 {
3137 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3138
3139 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3140 zoffset, postConvWidth, postConvHeight,
3141 texImage))
3142 goto out;
3143
3144 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3145 xoffset += texImage->Border;
3146 yoffset += texImage->Border;
3147 zoffset += texImage->Border;
3148
3149 ASSERT(ctx->Driver.CopyTexSubImage3D);
3150 (*ctx->Driver.CopyTexSubImage3D)(ctx, target, level,
3151 xoffset, yoffset, zoffset,
3152 x, y, width, height);
3153 ctx->NewState |= _NEW_TEXTURE;
3154 }
3155 out:
3156 _mesa_unlock_texture(ctx, texObj);
3157 }
3158
3159
3160
3161
3162 /**********************************************************************/
3163 /****** Compressed Textures ******/
3164 /**********************************************************************/
3165
3166
3167 /**
3168 * Error checking for glCompressedTexImage[123]D().
3169 * \return error code or GL_NO_ERROR.
3170 */
3171 static GLenum
3172 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3173 GLenum target, GLint level,
3174 GLenum internalFormat, GLsizei width,
3175 GLsizei height, GLsizei depth, GLint border,
3176 GLsizei imageSize)
3177 {
3178 GLint expectedSize, maxLevels = 0, maxTextureSize;
3179
3180 if (dimensions == 1) {
3181 /* 1D compressed textures not allowed */
3182 return GL_INVALID_ENUM;
3183 }
3184 else if (dimensions == 2) {
3185 if (target == GL_PROXY_TEXTURE_2D) {
3186 maxLevels = ctx->Const.MaxTextureLevels;
3187 }
3188 else if (target == GL_TEXTURE_2D) {
3189 maxLevels = ctx->Const.MaxTextureLevels;
3190 }
3191 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3192 if (!ctx->Extensions.ARB_texture_cube_map)
3193 return GL_INVALID_ENUM; /*target*/
3194 maxLevels = ctx->Const.MaxCubeTextureLevels;
3195 }
3196 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3197 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3198 if (!ctx->Extensions.ARB_texture_cube_map)
3199 return GL_INVALID_ENUM; /*target*/
3200 maxLevels = ctx->Const.MaxCubeTextureLevels;
3201 }
3202 else {
3203 return GL_INVALID_ENUM; /*target*/
3204 }
3205 }
3206 else if (dimensions == 3) {
3207 /* 3D compressed textures not allowed */
3208 return GL_INVALID_ENUM;
3209 }
3210
3211 maxTextureSize = 1 << (maxLevels - 1);
3212
3213 /* This will detect any invalid internalFormat value */
3214 if (!is_compressed_format(ctx, internalFormat))
3215 return GL_INVALID_ENUM;
3216
3217 /* This should really never fail */
3218 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3219 return GL_INVALID_ENUM;
3220
3221 if (border != 0)
3222 return GL_INVALID_VALUE;
3223
3224 /*
3225 * XXX We should probably use the proxy texture error check function here.
3226 */
3227 if (width < 1 || width > maxTextureSize ||
3228 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
3229 return GL_INVALID_VALUE;
3230
3231 if ((height < 1 || height > maxTextureSize ||
3232 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
3233 && dimensions > 1)
3234 return GL_INVALID_VALUE;
3235
3236 if ((depth < 1 || depth > maxTextureSize ||
3237 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
3238 && dimensions > 2)
3239 return GL_INVALID_VALUE;
3240
3241 /* For cube map, width must equal height */
3242 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3243 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3244 return GL_INVALID_VALUE;
3245
3246 if (level < 0 || level >= maxLevels)
3247 return GL_INVALID_VALUE;
3248
3249 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3250 depth, internalFormat);
3251 if (expectedSize != imageSize)
3252 return GL_INVALID_VALUE;
3253
3254 #if FEATURE_EXT_texture_sRGB
3255 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3256 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3257 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3258 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3259 && border != 0) {
3260 return GL_INVALID_OPERATION;
3261 }
3262 #endif
3263
3264 return GL_NO_ERROR;
3265 }
3266
3267
3268 /**
3269 * Error checking for glCompressedTexSubImage[123]D().
3270 * \warning There are some bad assumptions here about the size of compressed
3271 * texture tiles (multiple of 4) used to test the validity of the
3272 * offset and size parameters.
3273 * \return error code or GL_NO_ERROR.
3274 */
3275 static GLenum
3276 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3277 GLenum target, GLint level,
3278 GLint xoffset, GLint yoffset, GLint zoffset,
3279 GLsizei width, GLsizei height, GLsizei depth,
3280 GLenum format, GLsizei imageSize)
3281 {
3282 GLint expectedSize, maxLevels = 0, maxTextureSize;
3283 (void) zoffset;
3284
3285 if (dimensions == 1) {
3286 /* 1D compressed textures not allowed */
3287 return GL_INVALID_ENUM;
3288 }
3289 else if (dimensions == 2) {
3290 if (target == GL_PROXY_TEXTURE_2D) {
3291 maxLevels = ctx->Const.MaxTextureLevels;
3292 }
3293 else if (target == GL_TEXTURE_2D) {
3294 maxLevels = ctx->Const.MaxTextureLevels;
3295 }
3296 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3297 if (!ctx->Extensions.ARB_texture_cube_map)
3298 return GL_INVALID_ENUM; /*target*/
3299 maxLevels = ctx->Const.MaxCubeTextureLevels;
3300 }
3301 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3302 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3303 if (!ctx->Extensions.ARB_texture_cube_map)
3304 return GL_INVALID_ENUM; /*target*/
3305 maxLevels = ctx->Const.MaxCubeTextureLevels;
3306 }
3307 else {
3308 return GL_INVALID_ENUM; /*target*/
3309 }
3310 }
3311 else if (dimensions == 3) {
3312 /* 3D compressed textures not allowed */
3313 return GL_INVALID_ENUM;
3314 }
3315
3316 maxTextureSize = 1 << (maxLevels - 1);
3317
3318 /* this will catch any invalid compressed format token */
3319 if (!is_compressed_format(ctx, format))
3320 return GL_INVALID_ENUM;
3321
3322 if (width < 1 || width > maxTextureSize)
3323 return GL_INVALID_VALUE;
3324
3325 if ((height < 1 || height > maxTextureSize)
3326 && dimensions > 1)
3327 return GL_INVALID_VALUE;
3328
3329 if (level < 0 || level >= maxLevels)
3330 return GL_INVALID_VALUE;
3331
3332 /* XXX these tests are specific to the compressed format.
3333 * this code should be generalized in some way.
3334 */
3335 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3336 return GL_INVALID_VALUE;
3337
3338 if ((width & 3) != 0 && width != 2 && width != 1)
3339 return GL_INVALID_VALUE;
3340
3341 if ((height & 3) != 0 && height != 2 && height != 1)
3342 return GL_INVALID_VALUE;
3343
3344 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3345 depth, format);
3346 if (expectedSize != imageSize)
3347 return GL_INVALID_VALUE;
3348
3349 return GL_NO_ERROR;
3350 }
3351
3352
3353
3354 void GLAPIENTRY
3355 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3356 GLenum internalFormat, GLsizei width,
3357 GLint border, GLsizei imageSize,
3358 const GLvoid *data)
3359 {
3360 GET_CURRENT_CONTEXT(ctx);
3361 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3362
3363 if (target == GL_TEXTURE_1D) {
3364 /* non-proxy target */
3365 struct gl_texture_unit *texUnit;
3366 struct gl_texture_object *texObj;
3367 struct gl_texture_image *texImage;
3368 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3369 internalFormat, width, 1, 1, border, imageSize);
3370 if (error) {
3371 _mesa_error(ctx, error, "glCompressedTexImage1D");
3372 return;
3373 }
3374
3375 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3376 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3377
3378 _mesa_lock_texture(ctx, texObj);
3379 {
3380 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3381 if (!texImage) {
3382 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3383 goto out;
3384 }
3385
3386 if (texImage->Data) {
3387 ctx->Driver.FreeTexImageData( ctx, texImage );
3388 }
3389 ASSERT(texImage->Data == NULL);
3390
3391 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3392 border, internalFormat);
3393
3394 ASSERT(ctx->Driver.CompressedTexImage1D);
3395 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3396 internalFormat, width, border,
3397 imageSize, data,
3398 texObj, texImage);
3399
3400 /* state update */
3401 texObj->_Complete = GL_FALSE;
3402 ctx->NewState |= _NEW_TEXTURE;
3403 }
3404 out:
3405 _mesa_unlock_texture(ctx, texObj);
3406 }
3407 else if (target == GL_PROXY_TEXTURE_1D) {
3408 /* Proxy texture: check for errors and update proxy state */
3409 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3410 internalFormat, width, 1, 1, border, imageSize);
3411 if (!error) {
3412 ASSERT(ctx->Driver.TestProxyTexImage);
3413 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3414 internalFormat, GL_NONE, GL_NONE,
3415 width, 1, 1, border);
3416 }
3417 if (error) {
3418 /* if error, clear all proxy texture image parameters */
3419 struct gl_texture_image *texImage;
3420 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3421 if (texImage)
3422 clear_teximage_fields(texImage);
3423 }
3424 else {
3425 /* store the teximage parameters */
3426 struct gl_texture_unit *texUnit;
3427 struct gl_texture_object *texObj;
3428 struct gl_texture_image *texImage;
3429 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3430 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3431
3432 _mesa_lock_texture(ctx, texObj);
3433 {
3434 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3435 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3436 border, internalFormat);
3437 }
3438 _mesa_unlock_texture(ctx, texObj);
3439 }
3440 }
3441 else {
3442 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3443 return;
3444 }
3445 }
3446
3447
3448 void GLAPIENTRY
3449 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3450 GLenum internalFormat, GLsizei width,
3451 GLsizei height, GLint border, GLsizei imageSize,
3452 const GLvoid *data)
3453 {
3454 GET_CURRENT_CONTEXT(ctx);
3455 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3456
3457 if (target == GL_TEXTURE_2D ||
3458 (ctx->Extensions.ARB_texture_cube_map &&
3459 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3460 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3461 /* non-proxy target */
3462 struct gl_texture_unit *texUnit;
3463 struct gl_texture_object *texObj;
3464 struct gl_texture_image *texImage;
3465 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3466 internalFormat, width, height, 1, border, imageSize);
3467 if (error) {
3468 _mesa_error(ctx, error, "glCompressedTexImage2D");
3469 return;
3470 }
3471
3472 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3473 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3474
3475 _mesa_lock_texture(ctx, texObj);
3476 {
3477 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3478 if (!texImage) {
3479 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3480 goto out;
3481 }
3482
3483 if (texImage->Data) {
3484 ctx->Driver.FreeTexImageData( ctx, texImage );
3485 }
3486 ASSERT(texImage->Data == NULL);
3487
3488 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3489 border, internalFormat);
3490
3491 ASSERT(ctx->Driver.CompressedTexImage2D);
3492 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3493 internalFormat, width, height,
3494 border, imageSize, data,
3495 texObj, texImage);
3496
3497 /* state update */
3498 texObj->_Complete = GL_FALSE;
3499 ctx->NewState |= _NEW_TEXTURE;
3500 }
3501 out:
3502 _mesa_unlock_texture(ctx, texObj);
3503 }
3504 else if (target == GL_PROXY_TEXTURE_2D ||
3505 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3506 ctx->Extensions.ARB_texture_cube_map)) {
3507 /* Proxy texture: check for errors and update proxy state */
3508 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3509 internalFormat, width, height, 1, border, imageSize);
3510 if (!error) {
3511 ASSERT(ctx->Driver.TestProxyTexImage);
3512 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3513 internalFormat, GL_NONE, GL_NONE,
3514 width, height, 1, border);
3515 }
3516 if (error) {
3517 /* if error, clear all proxy texture image parameters */
3518 struct gl_texture_image *texImage;
3519 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3520 if (texImage)
3521 clear_teximage_fields(texImage);
3522 }
3523 else {
3524 /* store the teximage parameters */
3525 struct gl_texture_unit *texUnit;
3526 struct gl_texture_object *texObj;
3527 struct gl_texture_image *texImage;
3528 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3529 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3530
3531 _mesa_lock_texture(ctx, texObj);
3532 {
3533 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3534 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3535 border, internalFormat);
3536 }
3537 _mesa_unlock_texture(ctx, texObj);
3538 }
3539 }
3540 else {
3541 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3542 return;
3543 }
3544 }
3545
3546
3547 void GLAPIENTRY
3548 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3549 GLenum internalFormat, GLsizei width,
3550 GLsizei height, GLsizei depth, GLint border,
3551 GLsizei imageSize, const GLvoid *data)
3552 {
3553 GET_CURRENT_CONTEXT(ctx);
3554 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3555
3556 if (target == GL_TEXTURE_3D) {
3557 /* non-proxy target */
3558 struct gl_texture_unit *texUnit;
3559 struct gl_texture_object *texObj;
3560 struct gl_texture_image *texImage;
3561 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3562 internalFormat, width, height, depth, border, imageSize);
3563 if (error) {
3564 _mesa_error(ctx, error, "glCompressedTexImage3D");
3565 return;
3566 }
3567
3568 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3569 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3570 _mesa_lock_texture(ctx, texObj);
3571 {
3572 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3573 if (!texImage) {
3574 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3575 goto out;
3576 }
3577
3578 if (texImage->Data) {
3579 ctx->Driver.FreeTexImageData( ctx, texImage );
3580 }
3581 ASSERT(texImage->Data == NULL);
3582
3583 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3584 border, internalFormat);
3585
3586 ASSERT(ctx->Driver.CompressedTexImage3D);
3587 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3588 internalFormat,
3589 width, height, depth,
3590 border, imageSize, data,
3591 texObj, texImage);
3592
3593 /* state update */
3594 texObj->_Complete = GL_FALSE;
3595 ctx->NewState |= _NEW_TEXTURE;
3596 }
3597 out:
3598 _mesa_unlock_texture(ctx, texObj);
3599 }
3600 else if (target == GL_PROXY_TEXTURE_3D) {
3601 /* Proxy texture: check for errors and update proxy state */
3602 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3603 internalFormat, width, height, depth, border, imageSize);
3604 if (!error) {
3605 ASSERT(ctx->Driver.TestProxyTexImage);
3606 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3607 internalFormat, GL_NONE, GL_NONE,
3608 width, height, depth, border);
3609 }
3610 if (error) {
3611 /* if error, clear all proxy texture image parameters */
3612 struct gl_texture_image *texImage;
3613 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3614 if (texImage)
3615 clear_teximage_fields(texImage);
3616 }
3617 else {
3618 /* store the teximage parameters */
3619 struct gl_texture_unit *texUnit;
3620 struct gl_texture_object *texObj;
3621 struct gl_texture_image *texImage;
3622 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3623 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3624 _mesa_lock_texture(ctx, texObj);
3625 {
3626 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3627 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3628 depth, border, internalFormat);
3629 }
3630 _mesa_unlock_texture(ctx, texObj);
3631 }
3632 }
3633 else {
3634 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3635 return;
3636 }
3637 }
3638
3639
3640 void GLAPIENTRY
3641 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3642 GLsizei width, GLenum format,
3643 GLsizei imageSize, const GLvoid *data)
3644 {
3645 struct gl_texture_unit *texUnit;
3646 struct gl_texture_object *texObj;
3647 struct gl_texture_image *texImage;
3648 GLenum error;
3649 GET_CURRENT_CONTEXT(ctx);
3650 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3651
3652 error = compressed_subtexture_error_check(ctx, 1, target, level,
3653 xoffset, 0, 0, /* pos */
3654 width, 1, 1, /* size */
3655 format, imageSize);
3656 if (error) {
3657 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3658 return;
3659 }
3660
3661 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3662 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3663 _mesa_lock_texture(ctx, texObj);
3664 {
3665 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3666 assert(texImage);
3667
3668 if ((GLint) format != texImage->InternalFormat) {
3669 _mesa_error(ctx, GL_INVALID_OPERATION,
3670 "glCompressedTexSubImage1D(format)");
3671 goto out;
3672 }
3673
3674 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3675 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3676 goto out;
3677 }
3678
3679 if (width == 0)
3680 goto out; /* no-op, not an error */
3681
3682 if (ctx->Driver.CompressedTexSubImage1D) {
3683 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3684 xoffset, width,
3685 format, imageSize, data,
3686 texObj, texImage);
3687 }
3688 ctx->NewState |= _NEW_TEXTURE;
3689 }
3690 out:
3691 _mesa_unlock_texture(ctx, texObj);
3692 }
3693
3694
3695 void GLAPIENTRY
3696 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3697 GLint yoffset, GLsizei width, GLsizei height,
3698 GLenum format, GLsizei imageSize,
3699 const GLvoid *data)
3700 {
3701 struct gl_texture_unit *texUnit;
3702 struct gl_texture_object *texObj;
3703 struct gl_texture_image *texImage;
3704 GLenum error;
3705 GET_CURRENT_CONTEXT(ctx);
3706 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3707
3708 error = compressed_subtexture_error_check(ctx, 2, target, level,
3709 xoffset, yoffset, 0, /* pos */
3710 width, height, 1, /* size */
3711 format, imageSize);
3712 if (error) {
3713 /* XXX proxy target? */
3714 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3715 return;
3716 }
3717
3718 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3719 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3720 _mesa_lock_texture(ctx, texObj);
3721 {
3722 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3723 assert(texImage);
3724
3725 if ((GLint) format != texImage->InternalFormat) {
3726 _mesa_error(ctx, GL_INVALID_OPERATION,
3727 "glCompressedTexSubImage2D(format)");
3728 goto out;
3729 }
3730
3731 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3732 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3733 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3734 goto out;
3735 }
3736
3737 if (width == 0 || height == 0)
3738 goto out; /* no-op, not an error */
3739
3740 if (ctx->Driver.CompressedTexSubImage2D) {
3741 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3742 xoffset, yoffset, width, height,
3743 format, imageSize, data,
3744 texObj, texImage);
3745 }
3746 ctx->NewState |= _NEW_TEXTURE;
3747 }
3748 out:
3749 _mesa_unlock_texture(ctx, texObj);
3750 }
3751
3752
3753 void GLAPIENTRY
3754 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3755 GLint yoffset, GLint zoffset, GLsizei width,
3756 GLsizei height, GLsizei depth, GLenum format,
3757 GLsizei imageSize, const GLvoid *data)
3758 {
3759 struct gl_texture_unit *texUnit;
3760 struct gl_texture_object *texObj;
3761 struct gl_texture_image *texImage;
3762 GLenum error;
3763 GET_CURRENT_CONTEXT(ctx);
3764 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3765
3766 error = compressed_subtexture_error_check(ctx, 3, target, level,
3767 xoffset, yoffset, zoffset,/*pos*/
3768 width, height, depth, /*size*/
3769 format, imageSize);
3770 if (error) {
3771 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3772 return;
3773 }
3774
3775 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3776 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3777 _mesa_lock_texture(ctx, texObj);
3778 {
3779 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3780 assert(texImage);
3781
3782 if ((GLint) format != texImage->InternalFormat) {
3783 _mesa_error(ctx, GL_INVALID_OPERATION,
3784 "glCompressedTexSubImage3D(format)");
3785 goto out;
3786 }
3787
3788 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3789 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3790 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3791 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3792 goto out;
3793 }
3794
3795 if (width == 0 || height == 0 || depth == 0)
3796 goto out; /* no-op, not an error */
3797
3798 if (ctx->Driver.CompressedTexSubImage3D) {
3799 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3800 xoffset, yoffset, zoffset,
3801 width, height, depth,
3802 format, imageSize, data,
3803 texObj, texImage);
3804 }
3805 ctx->NewState |= _NEW_TEXTURE;
3806 }
3807 out:
3808 _mesa_unlock_texture(ctx, texObj);
3809 }
3810
3811
3812 void GLAPIENTRY
3813 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3814 {
3815 const struct gl_texture_unit *texUnit;
3816 struct gl_texture_object *texObj;
3817 struct gl_texture_image *texImage;
3818 GLint maxLevels;
3819 GET_CURRENT_CONTEXT(ctx);
3820 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3821
3822
3823 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3824 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3825 if (!texObj) {
3826 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3827 return;
3828 }
3829
3830 maxLevels = _mesa_max_texture_levels(ctx, target);
3831 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3832
3833 if (level < 0 || level >= maxLevels) {
3834 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3835 return;
3836 }
3837
3838 if (_mesa_is_proxy_texture(target)) {
3839 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3840 return;
3841 }
3842
3843
3844 _mesa_lock_texture(ctx, texObj);
3845 {
3846 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3847 if (!texImage) {
3848 /* probably invalid mipmap level */
3849 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3850 goto out;
3851 }
3852
3853 if (!texImage->IsCompressed) {
3854 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetCompressedTexImageARB");
3855 goto out;
3856 }
3857
3858 /* this typically calls _mesa_get_compressed_teximage() */
3859 ctx->Driver.GetCompressedTexImage(ctx, target, level, img, texObj,texImage);
3860 }
3861 out:
3862 _mesa_unlock_texture(ctx, texObj);
3863 }