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Added new _mesa_clip_copytexsubimage() function to do avoid clipping down in the...
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.1
4 *
5 * Copyright (C) 1999-2007 Brian Paul All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file teximage.c
28 * Texture image-related functions.
29 */
30
31
32 #include "glheader.h"
33 #include "bufferobj.h"
34 #include "context.h"
35 #include "convolve.h"
36 #include "fbobject.h"
37 #include "framebuffer.h"
38 #include "image.h"
39 #include "imports.h"
40 #include "macros.h"
41 #include "state.h"
42 #include "texcompress.h"
43 #include "texformat.h"
44 #include "teximage.h"
45 #include "texstate.h"
46 #include "texstore.h"
47 #include "mtypes.h"
48
49
50 /**
51 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
52 * elsewhere.
53 */
54 void *
55 _mesa_alloc_texmemory(GLsizei bytes)
56 {
57 return _mesa_align_malloc(bytes, 512);
58 }
59
60
61 /**
62 * Free texture memory allocated with _mesa_alloc_texmemory()
63 */
64 void
65 _mesa_free_texmemory(void *m)
66 {
67 _mesa_align_free(m);
68 }
69
70
71
72
73 #if 0
74 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
75 {
76 #if CHAN_TYPE != GL_UNSIGNED_BYTE
77 _mesa_problem(NULL, "PrintTexture not supported");
78 #else
79 GLuint i, j, c;
80 const GLubyte *data = (const GLubyte *) img->Data;
81
82 if (!data) {
83 _mesa_printf("No texture data\n");
84 return;
85 }
86
87 switch (img->Format) {
88 case GL_ALPHA:
89 case GL_LUMINANCE:
90 case GL_INTENSITY:
91 case GL_COLOR_INDEX:
92 c = 1;
93 break;
94 case GL_LUMINANCE_ALPHA:
95 c = 2;
96 break;
97 case GL_RGB:
98 c = 3;
99 break;
100 case GL_RGBA:
101 c = 4;
102 break;
103 default:
104 _mesa_problem(NULL, "error in PrintTexture\n");
105 return;
106 }
107
108 for (i = 0; i < img->Height; i++) {
109 for (j = 0; j < img->Width; j++) {
110 if (c==1)
111 _mesa_printf("%02x ", data[0]);
112 else if (c==2)
113 _mesa_printf("%02x%02x ", data[0], data[1]);
114 else if (c==3)
115 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
116 else if (c==4)
117 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
118 data += (img->RowStride - img->Width) * c;
119 }
120 /* XXX use img->ImageStride here */
121 _mesa_printf("\n");
122 }
123 #endif
124 }
125 #endif
126
127
128 /*
129 * Compute floor(log_base_2(n)).
130 * If n < 0 return -1.
131 */
132 static int
133 logbase2( int n )
134 {
135 GLint i = 1;
136 GLint log2 = 0;
137
138 if (n < 0)
139 return -1;
140
141 if (n == 0)
142 return 0;
143
144 while ( n > i ) {
145 i *= 2;
146 log2++;
147 }
148 if (i != n) {
149 return log2 - 1;
150 }
151 else {
152 return log2;
153 }
154 }
155
156
157
158 /**
159 * Return the simple base format for a given internal texture format.
160 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
161 *
162 * \param ctx GL context.
163 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
164 *
165 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
166 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
167 *
168 * This is the format which is used during texture application (i.e. the
169 * texture format and env mode determine the arithmetic used.
170 */
171 GLint
172 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
173 {
174 switch (internalFormat) {
175 case GL_ALPHA:
176 case GL_ALPHA4:
177 case GL_ALPHA8:
178 case GL_ALPHA12:
179 case GL_ALPHA16:
180 return GL_ALPHA;
181 case 1:
182 case GL_LUMINANCE:
183 case GL_LUMINANCE4:
184 case GL_LUMINANCE8:
185 case GL_LUMINANCE12:
186 case GL_LUMINANCE16:
187 return GL_LUMINANCE;
188 case 2:
189 case GL_LUMINANCE_ALPHA:
190 case GL_LUMINANCE4_ALPHA4:
191 case GL_LUMINANCE6_ALPHA2:
192 case GL_LUMINANCE8_ALPHA8:
193 case GL_LUMINANCE12_ALPHA4:
194 case GL_LUMINANCE12_ALPHA12:
195 case GL_LUMINANCE16_ALPHA16:
196 return GL_LUMINANCE_ALPHA;
197 case GL_INTENSITY:
198 case GL_INTENSITY4:
199 case GL_INTENSITY8:
200 case GL_INTENSITY12:
201 case GL_INTENSITY16:
202 return GL_INTENSITY;
203 case 3:
204 case GL_RGB:
205 case GL_R3_G3_B2:
206 case GL_RGB4:
207 case GL_RGB5:
208 case GL_RGB8:
209 case GL_RGB10:
210 case GL_RGB12:
211 case GL_RGB16:
212 return GL_RGB;
213 case 4:
214 case GL_RGBA:
215 case GL_RGBA2:
216 case GL_RGBA4:
217 case GL_RGB5_A1:
218 case GL_RGBA8:
219 case GL_RGB10_A2:
220 case GL_RGBA12:
221 case GL_RGBA16:
222 return GL_RGBA;
223 default:
224 ; /* fallthrough */
225 }
226
227 if (ctx->Extensions.EXT_paletted_texture) {
228 switch (internalFormat) {
229 case GL_COLOR_INDEX:
230 case GL_COLOR_INDEX1_EXT:
231 case GL_COLOR_INDEX2_EXT:
232 case GL_COLOR_INDEX4_EXT:
233 case GL_COLOR_INDEX8_EXT:
234 case GL_COLOR_INDEX12_EXT:
235 case GL_COLOR_INDEX16_EXT:
236 return GL_COLOR_INDEX;
237 default:
238 ; /* fallthrough */
239 }
240 }
241
242 if (ctx->Extensions.SGIX_depth_texture ||
243 ctx->Extensions.ARB_depth_texture) {
244 switch (internalFormat) {
245 case GL_DEPTH_COMPONENT:
246 case GL_DEPTH_COMPONENT16_SGIX:
247 case GL_DEPTH_COMPONENT24_SGIX:
248 case GL_DEPTH_COMPONENT32_SGIX:
249 return GL_DEPTH_COMPONENT;
250 default:
251 ; /* fallthrough */
252 }
253 }
254
255 if (ctx->Extensions.ARB_texture_compression) {
256 switch (internalFormat) {
257 case GL_COMPRESSED_ALPHA:
258 return GL_ALPHA;
259 case GL_COMPRESSED_LUMINANCE:
260 return GL_LUMINANCE;
261 case GL_COMPRESSED_LUMINANCE_ALPHA:
262 return GL_LUMINANCE_ALPHA;
263 case GL_COMPRESSED_INTENSITY:
264 return GL_INTENSITY;
265 case GL_COMPRESSED_RGB:
266 return GL_RGB;
267 case GL_COMPRESSED_RGBA:
268 return GL_RGBA;
269 default:
270 ; /* fallthrough */
271 }
272 }
273
274 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
275 switch (internalFormat) {
276 case GL_COMPRESSED_RGB_FXT1_3DFX:
277 return GL_RGB;
278 case GL_COMPRESSED_RGBA_FXT1_3DFX:
279 return GL_RGBA;
280 default:
281 ; /* fallthrough */
282 }
283 }
284
285 if (ctx->Extensions.EXT_texture_compression_s3tc) {
286 switch (internalFormat) {
287 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
288 return GL_RGB;
289 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
290 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
291 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
292 return GL_RGBA;
293 default:
294 ; /* fallthrough */
295 }
296 }
297
298 if (ctx->Extensions.S3_s3tc) {
299 switch (internalFormat) {
300 case GL_RGB_S3TC:
301 case GL_RGB4_S3TC:
302 return GL_RGB;
303 case GL_RGBA_S3TC:
304 case GL_RGBA4_S3TC:
305 return GL_RGBA;
306 default:
307 ; /* fallthrough */
308 }
309 }
310
311 if (ctx->Extensions.MESA_ycbcr_texture) {
312 if (internalFormat == GL_YCBCR_MESA)
313 return GL_YCBCR_MESA;
314 }
315
316 if (ctx->Extensions.ARB_texture_float) {
317 switch (internalFormat) {
318 case GL_ALPHA16F_ARB:
319 case GL_ALPHA32F_ARB:
320 return GL_ALPHA;
321 case GL_RGBA16F_ARB:
322 case GL_RGBA32F_ARB:
323 return GL_RGBA;
324 case GL_RGB16F_ARB:
325 case GL_RGB32F_ARB:
326 return GL_RGB;
327 case GL_INTENSITY16F_ARB:
328 case GL_INTENSITY32F_ARB:
329 return GL_INTENSITY;
330 case GL_LUMINANCE16F_ARB:
331 case GL_LUMINANCE32F_ARB:
332 return GL_LUMINANCE;
333 case GL_LUMINANCE_ALPHA16F_ARB:
334 case GL_LUMINANCE_ALPHA32F_ARB:
335 return GL_LUMINANCE_ALPHA;
336 default:
337 ; /* fallthrough */
338 }
339 }
340
341 if (ctx->Extensions.EXT_packed_depth_stencil) {
342 switch (internalFormat) {
343 case GL_DEPTH_STENCIL_EXT:
344 case GL_DEPTH24_STENCIL8_EXT:
345 return GL_DEPTH_STENCIL_EXT;
346 default:
347 ; /* fallthrough */
348 }
349 }
350
351 #if FEATURE_EXT_texture_sRGB
352 if (ctx->Extensions.EXT_texture_sRGB) {
353 switch (internalFormat) {
354 case GL_SRGB_EXT:
355 case GL_SRGB8_EXT:
356 case GL_COMPRESSED_SRGB_EXT:
357 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
358 return GL_RGB;
359 case GL_SRGB_ALPHA_EXT:
360 case GL_SRGB8_ALPHA8_EXT:
361 case GL_COMPRESSED_SRGB_ALPHA_EXT:
362 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
363 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
364 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
365 return GL_RGBA;
366 case GL_SLUMINANCE_ALPHA_EXT:
367 case GL_SLUMINANCE8_ALPHA8_EXT:
368 case GL_COMPRESSED_SLUMINANCE_EXT:
369 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
370 return GL_LUMINANCE_ALPHA;
371 case GL_SLUMINANCE_EXT:
372 case GL_SLUMINANCE8_EXT:
373 return GL_LUMINANCE;
374 default:
375 ; /* fallthrough */
376 }
377 }
378
379 #endif /* FEATURE_EXT_texture_sRGB */
380
381 return -1; /* error */
382 }
383
384
385 /**
386 * Test if the given image format is a color/RGBA format (i.e., not color
387 * index, depth, stencil, etc).
388 * \param format the image format value (may by an internal texture format)
389 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
390 */
391 static GLboolean
392 is_color_format(GLenum format)
393 {
394 switch (format) {
395 case GL_RED:
396 case GL_GREEN:
397 case GL_BLUE:
398 case GL_ALPHA:
399 case GL_ALPHA4:
400 case GL_ALPHA8:
401 case GL_ALPHA12:
402 case GL_ALPHA16:
403 case 1:
404 case GL_LUMINANCE:
405 case GL_LUMINANCE4:
406 case GL_LUMINANCE8:
407 case GL_LUMINANCE12:
408 case GL_LUMINANCE16:
409 case 2:
410 case GL_LUMINANCE_ALPHA:
411 case GL_LUMINANCE4_ALPHA4:
412 case GL_LUMINANCE6_ALPHA2:
413 case GL_LUMINANCE8_ALPHA8:
414 case GL_LUMINANCE12_ALPHA4:
415 case GL_LUMINANCE12_ALPHA12:
416 case GL_LUMINANCE16_ALPHA16:
417 case GL_INTENSITY:
418 case GL_INTENSITY4:
419 case GL_INTENSITY8:
420 case GL_INTENSITY12:
421 case GL_INTENSITY16:
422 case 3:
423 case GL_RGB:
424 case GL_BGR:
425 case GL_R3_G3_B2:
426 case GL_RGB4:
427 case GL_RGB5:
428 case GL_RGB8:
429 case GL_RGB10:
430 case GL_RGB12:
431 case GL_RGB16:
432 case 4:
433 case GL_ABGR_EXT:
434 case GL_RGBA:
435 case GL_BGRA:
436 case GL_RGBA2:
437 case GL_RGBA4:
438 case GL_RGB5_A1:
439 case GL_RGBA8:
440 case GL_RGB10_A2:
441 case GL_RGBA12:
442 case GL_RGBA16:
443 /* float texture formats */
444 case GL_ALPHA16F_ARB:
445 case GL_ALPHA32F_ARB:
446 case GL_LUMINANCE16F_ARB:
447 case GL_LUMINANCE32F_ARB:
448 case GL_LUMINANCE_ALPHA16F_ARB:
449 case GL_LUMINANCE_ALPHA32F_ARB:
450 case GL_INTENSITY16F_ARB:
451 case GL_INTENSITY32F_ARB:
452 case GL_RGB16F_ARB:
453 case GL_RGB32F_ARB:
454 case GL_RGBA16F_ARB:
455 case GL_RGBA32F_ARB:
456 /* compressed formats */
457 case GL_COMPRESSED_ALPHA:
458 case GL_COMPRESSED_LUMINANCE:
459 case GL_COMPRESSED_LUMINANCE_ALPHA:
460 case GL_COMPRESSED_INTENSITY:
461 case GL_COMPRESSED_RGB:
462 case GL_COMPRESSED_RGBA:
463 case GL_RGB_S3TC:
464 case GL_RGB4_S3TC:
465 case GL_RGBA_S3TC:
466 case GL_RGBA4_S3TC:
467 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
468 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
469 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
470 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
471 case GL_COMPRESSED_RGB_FXT1_3DFX:
472 case GL_COMPRESSED_RGBA_FXT1_3DFX:
473 #if FEATURE_EXT_texture_sRGB
474 case GL_SRGB_EXT:
475 case GL_SRGB8_EXT:
476 case GL_SRGB_ALPHA_EXT:
477 case GL_SRGB8_ALPHA8_EXT:
478 case GL_SLUMINANCE_ALPHA_EXT:
479 case GL_SLUMINANCE8_ALPHA8_EXT:
480 case GL_SLUMINANCE_EXT:
481 case GL_SLUMINANCE8_EXT:
482 case GL_COMPRESSED_SRGB_EXT:
483 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
484 case GL_COMPRESSED_SRGB_ALPHA_EXT:
485 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
486 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
487 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
488 case GL_COMPRESSED_SLUMINANCE_EXT:
489 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
490 #endif /* FEATURE_EXT_texture_sRGB */
491 return GL_TRUE;
492 case GL_YCBCR_MESA: /* not considered to be RGB */
493 default:
494 return GL_FALSE;
495 }
496 }
497
498
499 /**
500 * Test if the given image format is a color index format.
501 */
502 static GLboolean
503 is_index_format(GLenum format)
504 {
505 switch (format) {
506 case GL_COLOR_INDEX:
507 case GL_COLOR_INDEX1_EXT:
508 case GL_COLOR_INDEX2_EXT:
509 case GL_COLOR_INDEX4_EXT:
510 case GL_COLOR_INDEX8_EXT:
511 case GL_COLOR_INDEX12_EXT:
512 case GL_COLOR_INDEX16_EXT:
513 return GL_TRUE;
514 default:
515 return GL_FALSE;
516 }
517 }
518
519
520 /**
521 * Test if the given image format is a depth component format.
522 */
523 static GLboolean
524 is_depth_format(GLenum format)
525 {
526 switch (format) {
527 case GL_DEPTH_COMPONENT16_ARB:
528 case GL_DEPTH_COMPONENT24_ARB:
529 case GL_DEPTH_COMPONENT32_ARB:
530 case GL_DEPTH_COMPONENT:
531 return GL_TRUE;
532 default:
533 return GL_FALSE;
534 }
535 }
536
537
538 /**
539 * Test if the given image format is a YCbCr format.
540 */
541 static GLboolean
542 is_ycbcr_format(GLenum format)
543 {
544 switch (format) {
545 case GL_YCBCR_MESA:
546 return GL_TRUE;
547 default:
548 return GL_FALSE;
549 }
550 }
551
552
553 /**
554 * Test if the given image format is a Depth/Stencil format.
555 */
556 static GLboolean
557 is_depthstencil_format(GLenum format)
558 {
559 switch (format) {
560 case GL_DEPTH24_STENCIL8_EXT:
561 case GL_DEPTH_STENCIL_EXT:
562 return GL_TRUE;
563 default:
564 return GL_FALSE;
565 }
566 }
567
568
569
570 /**
571 * Test if it is a supported compressed format.
572 *
573 * \param internalFormat the internal format token provided by the user.
574 *
575 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
576 * GL_FALSE otherwise.
577 *
578 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
579 * are supported.
580 */
581 static GLboolean
582 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
583 {
584 GLint supported[100]; /* 100 should be plenty */
585 GLuint i, n;
586
587 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
588 ASSERT(n < 100);
589 for (i = 0; i < n; i++) {
590 if ((GLint) internalFormat == supported[i]) {
591 return GL_TRUE;
592 }
593 }
594 return GL_FALSE;
595 }
596
597
598 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 * Note that width, height, depth == 0 is not an error. However, a
1268 * texture with zero width/height/depth will be considered "incomplete"
1269 * and texturing will effectively be disabled.
1270 *
1271 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1272 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1273 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1274 * \param level as passed to glTexImage
1275 * \param internalFormat as passed to glTexImage
1276 * \param format as passed to glTexImage
1277 * \param type as passed to glTexImage
1278 * \param width as passed to glTexImage
1279 * \param height as passed to glTexImage
1280 * \param depth as passed to glTexImage
1281 * \param border as passed to glTexImage
1282 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1283 */
1284 GLboolean
1285 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1286 GLint internalFormat, GLenum format, GLenum type,
1287 GLint width, GLint height, GLint depth, GLint border)
1288 {
1289 GLint maxSize;
1290
1291 (void) internalFormat;
1292 (void) format;
1293 (void) type;
1294
1295 switch (target) {
1296 case GL_PROXY_TEXTURE_1D:
1297 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1298 if (width < 2 * border || width > 2 + maxSize ||
1299 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1300 width >0 && _mesa_bitcount(width - 2 * border) != 1) ||
1301 level >= ctx->Const.MaxTextureLevels) {
1302 /* bad width or level */
1303 return GL_FALSE;
1304 }
1305 return GL_TRUE;
1306 case GL_PROXY_TEXTURE_2D:
1307 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1308 if (width < 2 * border || width > 2 + maxSize ||
1309 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1310 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1311 height < 2 * border || height > 2 + maxSize ||
1312 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1313 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1314 level >= ctx->Const.MaxTextureLevels) {
1315 /* bad width or height or level */
1316 return GL_FALSE;
1317 }
1318 return GL_TRUE;
1319 case GL_PROXY_TEXTURE_3D:
1320 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1321 if (width < 2 * border || width > 2 + maxSize ||
1322 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1323 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1324 height < 2 * border || height > 2 + maxSize ||
1325 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1326 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1327 depth < 2 * border || depth > 2 + maxSize ||
1328 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1329 depth > 0 && _mesa_bitcount(depth - 2 * border) != 1) ||
1330 level >= ctx->Const.Max3DTextureLevels) {
1331 /* bad width or height or depth or level */
1332 return GL_FALSE;
1333 }
1334 return GL_TRUE;
1335 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1336 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1337 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1338 level != 0) {
1339 /* bad width or height or level */
1340 return GL_FALSE;
1341 }
1342 return GL_TRUE;
1343 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1344 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1345 if (width < 2 * border || width > 2 + maxSize ||
1346 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1347 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1348 height < 2 * border || height > 2 + maxSize ||
1349 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1350 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1351 level >= ctx->Const.MaxCubeTextureLevels) {
1352 /* bad width or height */
1353 return GL_FALSE;
1354 }
1355 return GL_TRUE;
1356 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1357 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1358 if (width < 2 * border || width > 2 + maxSize ||
1359 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1360 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1361 level >= ctx->Const.MaxTextureLevels) {
1362 /* bad width or level */
1363 return GL_FALSE;
1364 }
1365
1366 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1367 return GL_FALSE;
1368 }
1369 return GL_TRUE;
1370 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1371 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1372 if (width < 2 * border || width > 2 + maxSize ||
1373 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1374 width > 0 && _mesa_bitcount(width - 2 * border) != 1) ||
1375 height < 2 * border || height > 2 + maxSize ||
1376 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1377 height > 0 && _mesa_bitcount(height - 2 * border) != 1) ||
1378 level >= ctx->Const.MaxTextureLevels) {
1379 /* bad width or height or level */
1380 return GL_FALSE;
1381 }
1382 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1383 return GL_FALSE;
1384 }
1385 return GL_TRUE;
1386 default:
1387 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1388 return GL_FALSE;
1389 }
1390 }
1391
1392
1393 /**
1394 * Helper function to determine whether a target supports compressed textures
1395 */
1396 static GLboolean
1397 target_can_be_compressed(GLcontext *ctx, GLenum target)
1398 {
1399 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1400 || ((ctx->Extensions.ARB_texture_cube_map &&
1401 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1402 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1403 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1404 || ((ctx->Extensions.MESA_texture_array &&
1405 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1406 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1407 }
1408
1409
1410 /**
1411 * Test the glTexImage[123]D() parameters for errors.
1412 *
1413 * \param ctx GL context.
1414 * \param target texture target given by the user.
1415 * \param level image level given by the user.
1416 * \param internalFormat internal format given by the user.
1417 * \param format pixel data format given by the user.
1418 * \param type pixel data type given by the user.
1419 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1420 * \param width image width given by the user.
1421 * \param height image height given by the user.
1422 * \param depth image depth given by the user.
1423 * \param border image border given by the user.
1424 *
1425 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1426 *
1427 * Verifies each of the parameters against the constants specified in
1428 * __GLcontextRec::Const and the supported extensions, and according to the
1429 * OpenGL specification.
1430 */
1431 static GLboolean
1432 texture_error_check( GLcontext *ctx, GLenum target,
1433 GLint level, GLint internalFormat,
1434 GLenum format, GLenum type,
1435 GLuint dimensions,
1436 GLint width, GLint height,
1437 GLint depth, GLint border )
1438 {
1439 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1440 GLboolean sizeOK = GL_TRUE;
1441 GLboolean colorFormat, indexFormat;
1442 GLenum proxy_target;
1443
1444 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1445 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1446 if (!isProxy) {
1447 _mesa_error(ctx, GL_INVALID_VALUE,
1448 "glTexImage%dD(level=%d)", dimensions, level);
1449 }
1450 return GL_TRUE;
1451 }
1452
1453 /* Check border */
1454 if (border < 0 || border > 1 ||
1455 ((target == GL_TEXTURE_RECTANGLE_NV ||
1456 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1457 if (!isProxy) {
1458 _mesa_error(ctx, GL_INVALID_VALUE,
1459 "glTexImage%dD(border=%d)", dimensions, border);
1460 }
1461 return GL_TRUE;
1462 }
1463
1464 if (width < 0 || height < 0 || depth < 0) {
1465 if (!isProxy) {
1466 _mesa_error(ctx, GL_INVALID_VALUE,
1467 "glTexImage%dD(width, height or depth < 0)", dimensions);
1468 }
1469 return GL_TRUE;
1470 }
1471
1472 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1473 * level, width, height and depth.
1474 */
1475 if (dimensions == 1) {
1476 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1477 proxy_target = GL_PROXY_TEXTURE_1D;
1478 height = 1;
1479 depth = 1;
1480 }
1481 else {
1482 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1483 return GL_TRUE;
1484 }
1485 }
1486 else if (dimensions == 2) {
1487 depth = 1;
1488 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1489 proxy_target = GL_PROXY_TEXTURE_2D;
1490 }
1491 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1492 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1493 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1494 if (!ctx->Extensions.ARB_texture_cube_map) {
1495 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1496 return GL_TRUE;
1497 }
1498 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1499 sizeOK = (width == height);
1500 }
1501 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1502 target == GL_TEXTURE_RECTANGLE_NV) {
1503 if (!ctx->Extensions.NV_texture_rectangle) {
1504 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1505 return GL_TRUE;
1506 }
1507 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1508 }
1509 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1510 target == GL_TEXTURE_1D_ARRAY_EXT) {
1511 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1512 }
1513 else {
1514 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1515 return GL_TRUE;
1516 }
1517 }
1518 else if (dimensions == 3) {
1519 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1520 proxy_target = GL_PROXY_TEXTURE_3D;
1521 }
1522 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1523 target == GL_TEXTURE_2D_ARRAY_EXT) {
1524 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1525 }
1526 else {
1527 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1528 return GL_TRUE;
1529 }
1530 }
1531 else {
1532 _mesa_problem( ctx, "bad dims in texture_error_check" );
1533 return GL_TRUE;
1534 }
1535
1536 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1537 internalFormat, format,
1538 type, width, height,
1539 depth, border);
1540 if (!sizeOK) {
1541 if (!isProxy) {
1542 _mesa_error(ctx, GL_INVALID_VALUE,
1543 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1544 dimensions, level, width, height, depth);
1545 }
1546 return GL_TRUE;
1547 }
1548
1549 /* Check internalFormat */
1550 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1551 if (!isProxy) {
1552 _mesa_error(ctx, GL_INVALID_VALUE,
1553 "glTexImage%dD(internalFormat=0x%x)",
1554 dimensions, internalFormat);
1555 }
1556 return GL_TRUE;
1557 }
1558
1559 /* Check incoming image format and type */
1560 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1561 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1562 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1563 */
1564 if (!isProxy) {
1565 _mesa_error(ctx, GL_INVALID_OPERATION,
1566 "glTexImage%dD(format or type)", dimensions);
1567 }
1568 return GL_TRUE;
1569 }
1570
1571 /* make sure internal format and format basically agree */
1572 colorFormat = is_color_format(format);
1573 indexFormat = is_index_format(format);
1574 if ((is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1575 (is_index_format(internalFormat) && !indexFormat) ||
1576 (is_depth_format(internalFormat) != is_depth_format(format)) ||
1577 (is_ycbcr_format(internalFormat) != is_ycbcr_format(format)) ||
1578 (is_depthstencil_format(internalFormat) != is_depthstencil_format(format))) {
1579 if (!isProxy)
1580 _mesa_error(ctx, GL_INVALID_OPERATION,
1581 "glTexImage(internalFormat/format)");
1582 return GL_TRUE;
1583 }
1584
1585 /* additional checks for ycbcr textures */
1586 if (internalFormat == GL_YCBCR_MESA) {
1587 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1588 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1589 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1590 char message[100];
1591 _mesa_sprintf(message,
1592 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1593 _mesa_error(ctx, GL_INVALID_ENUM, message);
1594 return GL_TRUE; /* error */
1595 }
1596 if (target != GL_TEXTURE_2D &&
1597 target != GL_PROXY_TEXTURE_2D &&
1598 target != GL_TEXTURE_RECTANGLE_NV &&
1599 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1600 if (!isProxy)
1601 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1602 return GL_TRUE;
1603 }
1604 if (border != 0) {
1605 if (!isProxy) {
1606 char message[100];
1607 _mesa_sprintf(message,
1608 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1609 dimensions, border);
1610 _mesa_error(ctx, GL_INVALID_VALUE, message);
1611 }
1612 return GL_TRUE;
1613 }
1614 }
1615
1616 /* additional checks for depth textures */
1617 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1618 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1619 if (target != GL_TEXTURE_1D &&
1620 target != GL_PROXY_TEXTURE_1D &&
1621 target != GL_TEXTURE_2D &&
1622 target != GL_PROXY_TEXTURE_2D &&
1623 target != GL_TEXTURE_RECTANGLE_ARB &&
1624 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1625 if (!isProxy)
1626 _mesa_error(ctx, GL_INVALID_ENUM,
1627 "glTexImage(target/internalFormat)");
1628 return GL_TRUE;
1629 }
1630 }
1631
1632 /* additional checks for compressed textures */
1633 if (is_compressed_format(ctx, internalFormat)) {
1634 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1635 _mesa_error(ctx, GL_INVALID_ENUM,
1636 "glTexImage%d(target)", dimensions);
1637 return GL_TRUE;
1638 }
1639 if (border != 0) {
1640 if (!isProxy) {
1641 _mesa_error(ctx, GL_INVALID_OPERATION,
1642 "glTexImage%D(border!=0)", dimensions);
1643 }
1644 return GL_TRUE;
1645 }
1646 }
1647
1648 /* if we get here, the parameters are OK */
1649 return GL_FALSE;
1650 }
1651
1652
1653 /**
1654 * Test glTexSubImage[123]D() parameters for errors.
1655 *
1656 * \param ctx GL context.
1657 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1658 * \param target texture target given by the user.
1659 * \param level image level given by the user.
1660 * \param xoffset sub-image x offset given by the user.
1661 * \param yoffset sub-image y offset given by the user.
1662 * \param zoffset sub-image z offset given by the user.
1663 * \param format pixel data format given by the user.
1664 * \param type pixel data type given by the user.
1665 * \param width image width given by the user.
1666 * \param height image height given by the user.
1667 * \param depth image depth given by the user.
1668 *
1669 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1670 *
1671 * Verifies each of the parameters against the constants specified in
1672 * __GLcontextRec::Const and the supported extensions, and according to the
1673 * OpenGL specification.
1674 */
1675 static GLboolean
1676 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1677 GLenum target, GLint level,
1678 GLint xoffset, GLint yoffset, GLint zoffset,
1679 GLint width, GLint height, GLint depth,
1680 GLenum format, GLenum type )
1681 {
1682 /* Check target */
1683 if (dimensions == 1) {
1684 if (target != GL_TEXTURE_1D) {
1685 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1686 return GL_TRUE;
1687 }
1688 }
1689 else if (dimensions == 2) {
1690 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1691 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1692 if (!ctx->Extensions.ARB_texture_cube_map) {
1693 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1694 return GL_TRUE;
1695 }
1696 }
1697 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1698 if (!ctx->Extensions.NV_texture_rectangle) {
1699 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1700 return GL_TRUE;
1701 }
1702 }
1703 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1704 if (!ctx->Extensions.MESA_texture_array) {
1705 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1706 return GL_TRUE;
1707 }
1708 }
1709 else if (target != GL_TEXTURE_2D) {
1710 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1711 return GL_TRUE;
1712 }
1713 }
1714 else if (dimensions == 3) {
1715 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1716 if (!ctx->Extensions.MESA_texture_array) {
1717 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1718 return GL_TRUE;
1719 }
1720 }
1721 else if (target != GL_TEXTURE_3D) {
1722 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1723 return GL_TRUE;
1724 }
1725 }
1726 else {
1727 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1728 return GL_TRUE;
1729 }
1730
1731 /* Basic level check */
1732 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1733 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1734 return GL_TRUE;
1735 }
1736
1737 if (width < 0) {
1738 _mesa_error(ctx, GL_INVALID_VALUE,
1739 "glTexSubImage%dD(width=%d)", dimensions, width);
1740 return GL_TRUE;
1741 }
1742 if (height < 0 && dimensions > 1) {
1743 _mesa_error(ctx, GL_INVALID_VALUE,
1744 "glTexSubImage%dD(height=%d)", dimensions, height);
1745 return GL_TRUE;
1746 }
1747 if (depth < 0 && dimensions > 2) {
1748 _mesa_error(ctx, GL_INVALID_VALUE,
1749 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1750 return GL_TRUE;
1751 }
1752
1753 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1754 _mesa_error(ctx, GL_INVALID_ENUM,
1755 "glTexSubImage%dD(format or type)", dimensions);
1756 return GL_TRUE;
1757 }
1758
1759 return GL_FALSE;
1760 }
1761
1762 static GLboolean
1763 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1764 GLenum target, GLint level,
1765 GLint xoffset, GLint yoffset, GLint zoffset,
1766 GLint width, GLint height, GLint depth,
1767 GLenum format, GLenum type,
1768 const struct gl_texture_image *destTex )
1769 {
1770 if (!destTex) {
1771 /* undefined image level */
1772 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1773 return GL_TRUE;
1774 }
1775
1776 if (xoffset < -((GLint)destTex->Border)) {
1777 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1778 dimensions);
1779 return GL_TRUE;
1780 }
1781 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1782 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1783 dimensions);
1784 return GL_TRUE;
1785 }
1786 if (dimensions > 1) {
1787 if (yoffset < -((GLint)destTex->Border)) {
1788 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1789 dimensions);
1790 return GL_TRUE;
1791 }
1792 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1793 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1794 dimensions);
1795 return GL_TRUE;
1796 }
1797 }
1798 if (dimensions > 2) {
1799 if (zoffset < -((GLint)destTex->Border)) {
1800 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1801 return GL_TRUE;
1802 }
1803 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1804 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1805 return GL_TRUE;
1806 }
1807 }
1808
1809 #if FEATURE_EXT_texture_sRGB
1810 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1811 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1812 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1813 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1814 if ((width & 0x3) || (height & 0x3) ||
1815 (xoffset & 0x3) || (yoffset & 0x3))
1816 _mesa_error(ctx, GL_INVALID_OPERATION,
1817 "glTexSubImage%dD(size or offset not multiple of 4)",
1818 dimensions);
1819 return GL_TRUE;
1820 }
1821 #endif
1822
1823 if (destTex->IsCompressed) {
1824 if (!target_can_be_compressed(ctx, target)) {
1825 _mesa_error(ctx, GL_INVALID_ENUM,
1826 "glTexSubImage%D(target)", dimensions);
1827 return GL_TRUE;
1828 }
1829 /* offset must be multiple of 4 */
1830 if ((xoffset & 3) || (yoffset & 3)) {
1831 _mesa_error(ctx, GL_INVALID_OPERATION,
1832 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1833 return GL_TRUE;
1834 }
1835 /* size must be multiple of 4 or equal to whole texture size */
1836 if ((width & 3) && (GLuint) width != destTex->Width) {
1837 _mesa_error(ctx, GL_INVALID_OPERATION,
1838 "glTexSubImage%D(width)", dimensions);
1839 return GL_TRUE;
1840 }
1841 if ((height & 3) && (GLuint) height != destTex->Height) {
1842 _mesa_error(ctx, GL_INVALID_OPERATION,
1843 "glTexSubImage%D(width)", dimensions);
1844 return GL_TRUE;
1845 }
1846 }
1847
1848 return GL_FALSE;
1849 }
1850
1851
1852 /**
1853 * Test glCopyTexImage[12]D() parameters for errors.
1854 *
1855 * \param ctx GL context.
1856 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1857 * \param target texture target given by the user.
1858 * \param level image level given by the user.
1859 * \param internalFormat internal format given by the user.
1860 * \param width image width given by the user.
1861 * \param height image height given by the user.
1862 * \param depth image depth given by the user.
1863 * \param border texture border.
1864 *
1865 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1866 *
1867 * Verifies each of the parameters against the constants specified in
1868 * __GLcontextRec::Const and the supported extensions, and according to the
1869 * OpenGL specification.
1870 */
1871 static GLboolean
1872 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1873 GLenum target, GLint level, GLint internalFormat,
1874 GLint width, GLint height, GLint border )
1875 {
1876 GLenum type;
1877 GLboolean sizeOK;
1878 GLint format;
1879
1880 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1881 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1882 _mesa_error(ctx, GL_INVALID_VALUE,
1883 "glCopyTexImage%dD(level=%d)", dimensions, level);
1884 return GL_TRUE;
1885 }
1886
1887 /* Check that the source buffer is complete */
1888 if (ctx->ReadBuffer->Name) {
1889 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1890 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1891 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1892 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1893 return GL_TRUE;
1894 }
1895 }
1896
1897 /* Check border */
1898 if (border < 0 || border > 1 ||
1899 ((target == GL_TEXTURE_RECTANGLE_NV ||
1900 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1901 return GL_TRUE;
1902 }
1903
1904 format = _mesa_base_tex_format(ctx, internalFormat);
1905 if (format < 0) {
1906 _mesa_error(ctx, GL_INVALID_VALUE,
1907 "glCopyTexImage%dD(internalFormat)", dimensions);
1908 return GL_TRUE;
1909 }
1910
1911 /* NOTE: the format and type aren't really significant for
1912 * TestProxyTexImage(). Only the internalformat really matters.
1913 if (!_mesa_source_buffer_exists(ctx, format)) {
1914 _mesa_error(ctx, GL_INVALID_OPERATION,
1915 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1916 return GL_TRUE;
1917 }
1918
1919 */
1920 type = GL_FLOAT;
1921
1922 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1923 * level, width, height and depth.
1924 */
1925 if (dimensions == 1) {
1926 if (target == GL_TEXTURE_1D) {
1927 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1928 level, internalFormat,
1929 format, type,
1930 width, 1, 1, border);
1931 }
1932 else {
1933 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1934 return GL_TRUE;
1935 }
1936 }
1937 else if (dimensions == 2) {
1938 if (target == GL_TEXTURE_2D) {
1939 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1940 level, internalFormat,
1941 format, type,
1942 width, height, 1, border);
1943 }
1944 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1945 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1946 if (!ctx->Extensions.ARB_texture_cube_map) {
1947 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1948 return GL_TRUE;
1949 }
1950 sizeOK = (width == height) &&
1951 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1952 level, internalFormat, format, type,
1953 width, height, 1, border);
1954 }
1955 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1956 if (!ctx->Extensions.NV_texture_rectangle) {
1957 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1958 return GL_TRUE;
1959 }
1960 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1961 GL_PROXY_TEXTURE_RECTANGLE_NV,
1962 level, internalFormat,
1963 format, type,
1964 width, height, 1, border);
1965 }
1966 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1967 if (!ctx->Extensions.MESA_texture_array) {
1968 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1969 return GL_TRUE;
1970 }
1971 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1972 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1973 level, internalFormat,
1974 format, type,
1975 width, height, 1, border);
1976 }
1977 else {
1978 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1979 return GL_TRUE;
1980 }
1981 }
1982 else {
1983 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1984 return GL_TRUE;
1985 }
1986
1987 if (!sizeOK) {
1988 if (dimensions == 1) {
1989 _mesa_error(ctx, GL_INVALID_VALUE,
1990 "glCopyTexImage1D(width=%d)", width);
1991 }
1992 else {
1993 ASSERT(dimensions == 2);
1994 _mesa_error(ctx, GL_INVALID_VALUE,
1995 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1996 }
1997 return GL_TRUE;
1998 }
1999
2000 if (is_compressed_format(ctx, internalFormat)) {
2001 if (target != GL_TEXTURE_2D) {
2002 _mesa_error(ctx, GL_INVALID_ENUM,
2003 "glCopyTexImage%d(target)", dimensions);
2004 return GL_TRUE;
2005 }
2006 if (border != 0) {
2007 _mesa_error(ctx, GL_INVALID_OPERATION,
2008 "glCopyTexImage%D(border!=0)", dimensions);
2009 return GL_TRUE;
2010 }
2011 }
2012 else if (is_depth_format(internalFormat)) {
2013 /* make sure we have depth/stencil buffers */
2014 if (!ctx->ReadBuffer->_DepthBuffer) {
2015 _mesa_error(ctx, GL_INVALID_OPERATION,
2016 "glCopyTexImage%D(no depth)", dimensions);
2017 return GL_TRUE;
2018 }
2019 }
2020 else if (is_depthstencil_format(internalFormat)) {
2021 /* make sure we have depth/stencil buffers */
2022 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2023 _mesa_error(ctx, GL_INVALID_OPERATION,
2024 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
2025 return GL_TRUE;
2026 }
2027 }
2028
2029 /* if we get here, the parameters are OK */
2030 return GL_FALSE;
2031 }
2032
2033
2034 /**
2035 * Test glCopyTexSubImage[12]D() parameters for errors.
2036 *
2037 * \param ctx GL context.
2038 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2039 * \param target texture target given by the user.
2040 * \param level image level given by the user.
2041 * \param xoffset sub-image x offset given by the user.
2042 * \param yoffset sub-image y offset given by the user.
2043 * \param zoffset sub-image z offset given by the user.
2044 * \param width image width given by the user.
2045 * \param height image height given by the user.
2046 *
2047 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2048 *
2049 * Verifies each of the parameters against the constants specified in
2050 * __GLcontextRec::Const and the supported extensions, and according to the
2051 * OpenGL specification.
2052 */
2053 static GLboolean
2054 copytexsubimage_error_check( GLcontext *ctx, GLuint dimensions,
2055 GLenum target, GLint level,
2056 GLint xoffset, GLint yoffset, GLint zoffset,
2057 GLsizei width, GLsizei height)
2058 {
2059 /* Check target */
2060 /* Check that the source buffer is complete */
2061 if (ctx->ReadBuffer->Name) {
2062 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2063 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2064 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2065 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2066 return GL_TRUE;
2067 }
2068 }
2069
2070 if (dimensions == 1) {
2071 if (target != GL_TEXTURE_1D) {
2072 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
2073 return GL_TRUE;
2074 }
2075 }
2076 else if (dimensions == 2) {
2077 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2078 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2079 if (!ctx->Extensions.ARB_texture_cube_map) {
2080 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2081 return GL_TRUE;
2082 }
2083 }
2084 else if (target == GL_TEXTURE_RECTANGLE_NV) {
2085 if (!ctx->Extensions.NV_texture_rectangle) {
2086 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2087 return GL_TRUE;
2088 }
2089 }
2090 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
2091 if (!ctx->Extensions.MESA_texture_array) {
2092 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2093 return GL_TRUE;
2094 }
2095 }
2096 else if (target != GL_TEXTURE_2D) {
2097 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
2098 return GL_TRUE;
2099 }
2100 }
2101 else if (dimensions == 3) {
2102 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
2103 (!ctx->Extensions.MESA_texture_array))
2104 && (target != GL_TEXTURE_3D)) {
2105 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
2106 return GL_TRUE;
2107 }
2108 }
2109
2110 /* Check level */
2111 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
2112 _mesa_error(ctx, GL_INVALID_VALUE,
2113 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2114 return GL_TRUE;
2115 }
2116
2117 /* Check size */
2118 if (width < 0) {
2119 _mesa_error(ctx, GL_INVALID_VALUE,
2120 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
2121 return GL_TRUE;
2122 }
2123 if (dimensions > 1 && height < 0) {
2124 _mesa_error(ctx, GL_INVALID_VALUE,
2125 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
2126 return GL_TRUE;
2127 }
2128
2129 return GL_FALSE;
2130 }
2131
2132 static GLboolean
2133 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
2134 GLenum target, GLint level,
2135 GLint xoffset, GLint yoffset, GLint zoffset,
2136 GLsizei width, GLsizei height,
2137 const struct gl_texture_image *teximage )
2138 {
2139 if (!teximage) {
2140 _mesa_error(ctx, GL_INVALID_OPERATION,
2141 "glCopyTexSubImage%dD(undefined texture level: %d)",
2142 dimensions, level);
2143 return GL_TRUE;
2144 }
2145
2146 if (xoffset < -((GLint)teximage->Border)) {
2147 _mesa_error(ctx, GL_INVALID_VALUE,
2148 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
2149 return GL_TRUE;
2150 }
2151 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
2152 _mesa_error(ctx, GL_INVALID_VALUE,
2153 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
2154 return GL_TRUE;
2155 }
2156 if (dimensions > 1) {
2157 if (yoffset < -((GLint)teximage->Border)) {
2158 _mesa_error(ctx, GL_INVALID_VALUE,
2159 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
2160 return GL_TRUE;
2161 }
2162 /* NOTE: we're adding the border here, not subtracting! */
2163 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
2164 _mesa_error(ctx, GL_INVALID_VALUE,
2165 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
2166 return GL_TRUE;
2167 }
2168 }
2169
2170 if (dimensions > 2) {
2171 if (zoffset < -((GLint)teximage->Border)) {
2172 _mesa_error(ctx, GL_INVALID_VALUE,
2173 "glCopyTexSubImage%dD(zoffset)", dimensions);
2174 return GL_TRUE;
2175 }
2176 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
2177 _mesa_error(ctx, GL_INVALID_VALUE,
2178 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
2179 return GL_TRUE;
2180 }
2181 }
2182
2183 if (teximage->IsCompressed) {
2184 if (target != GL_TEXTURE_2D) {
2185 _mesa_error(ctx, GL_INVALID_ENUM,
2186 "glCopyTexSubImage%d(target)", dimensions);
2187 return GL_TRUE;
2188 }
2189 /* offset must be multiple of 4 */
2190 if ((xoffset & 3) || (yoffset & 3)) {
2191 _mesa_error(ctx, GL_INVALID_VALUE,
2192 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
2193 return GL_TRUE;
2194 }
2195 /* size must be multiple of 4 */
2196 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
2197 _mesa_error(ctx, GL_INVALID_VALUE,
2198 "glCopyTexSubImage%D(width)", dimensions);
2199 return GL_TRUE;
2200 }
2201 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
2202 _mesa_error(ctx, GL_INVALID_VALUE,
2203 "glCopyTexSubImage%D(height)", dimensions);
2204 return GL_TRUE;
2205 }
2206 }
2207
2208 if (teximage->InternalFormat == GL_YCBCR_MESA) {
2209 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2210 return GL_TRUE;
2211 }
2212
2213 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
2214 _mesa_error(ctx, GL_INVALID_OPERATION,
2215 "glCopyTexSubImage%dD(missing readbuffer)", dimensions);
2216 return GL_TRUE;
2217 }
2218
2219 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2220 if (!ctx->ReadBuffer->_DepthBuffer) {
2221 _mesa_error(ctx, GL_INVALID_OPERATION,
2222 "glCopyTexSubImage%D(no depth buffer)",
2223 dimensions);
2224 return GL_TRUE;
2225 }
2226 }
2227 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2228 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2229 _mesa_error(ctx, GL_INVALID_OPERATION,
2230 "glCopyTexSubImage%D(no depth/stencil buffer)",
2231 dimensions);
2232 return GL_TRUE;
2233 }
2234 }
2235
2236 /* if we get here, the parameters are OK */
2237 return GL_FALSE;
2238 }
2239
2240
2241 /**
2242 * Get texture image. Called by glGetTexImage.
2243 *
2244 * \param target texture target.
2245 * \param level image level.
2246 * \param format pixel data format for returned image.
2247 * \param type pixel data type for returned image.
2248 * \param pixels returned pixel data.
2249 */
2250 void GLAPIENTRY
2251 _mesa_GetTexImage( GLenum target, GLint level, GLenum format,
2252 GLenum type, GLvoid *pixels )
2253 {
2254 const struct gl_texture_unit *texUnit;
2255 struct gl_texture_object *texObj;
2256 struct gl_texture_image *texImage;
2257 GLint maxLevels = 0;
2258 GET_CURRENT_CONTEXT(ctx);
2259 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2260
2261 texUnit = &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
2262 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2263 if (!texObj || _mesa_is_proxy_texture(target)) {
2264 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(target)");
2265 return;
2266 }
2267
2268 maxLevels = _mesa_max_texture_levels(ctx, target);
2269 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
2270
2271 if (level < 0 || level >= maxLevels) {
2272 _mesa_error( ctx, GL_INVALID_VALUE, "glGetTexImage(level)" );
2273 return;
2274 }
2275
2276 if (_mesa_sizeof_packed_type(type) <= 0) {
2277 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(type)" );
2278 return;
2279 }
2280
2281 if (_mesa_components_in_format(format) <= 0 ||
2282 format == GL_STENCIL_INDEX) {
2283 _mesa_error( ctx, GL_INVALID_ENUM, "glGetTexImage(format)" );
2284 return;
2285 }
2286
2287 if (!ctx->Extensions.EXT_paletted_texture && is_index_format(format)) {
2288 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2289 return;
2290 }
2291
2292 if (!ctx->Extensions.SGIX_depth_texture &&
2293 !ctx->Extensions.ARB_depth_texture && is_depth_format(format)) {
2294 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2295 return;
2296 }
2297
2298 if (!ctx->Extensions.MESA_ycbcr_texture && is_ycbcr_format(format)) {
2299 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2300 return;
2301 }
2302
2303 if (!ctx->Extensions.EXT_packed_depth_stencil
2304 && is_depthstencil_format(format)) {
2305 _mesa_error(ctx, GL_INVALID_ENUM, "glGetTexImage(format)");
2306 return;
2307 }
2308
2309 if (!pixels)
2310 return;
2311
2312 _mesa_lock_texture(ctx, texObj);
2313 {
2314 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2315 if (!texImage) {
2316 /* invalid mipmap level, not an error */
2317 goto out;
2318 }
2319
2320
2321 /* Make sure the requested image format is compatible with the
2322 * texture's format. Note that a color index texture can be converted
2323 * to RGBA so that combo is allowed.
2324 */
2325 if (is_color_format(format)
2326 && !is_color_format(texImage->TexFormat->BaseFormat)
2327 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2328 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2329 goto out;
2330 }
2331 else if (is_index_format(format)
2332 && !is_index_format(texImage->TexFormat->BaseFormat)) {
2333 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2334 goto out;
2335 }
2336 else if (is_depth_format(format)
2337 && !is_depth_format(texImage->TexFormat->BaseFormat)
2338 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2339 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2340 goto out;
2341 }
2342 else if (is_ycbcr_format(format)
2343 && !is_ycbcr_format(texImage->TexFormat->BaseFormat)) {
2344 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2345 goto out;
2346 }
2347 else if (is_depthstencil_format(format)
2348 && !is_depthstencil_format(texImage->TexFormat->BaseFormat)) {
2349 _mesa_error(ctx, GL_INVALID_OPERATION, "glGetTexImage(format mismatch)");
2350 goto out;
2351 }
2352
2353 if (ctx->Pack.BufferObj->Name) {
2354 /* packing texture image into a PBO */
2355 const GLuint dimensions = (target == GL_TEXTURE_3D) ? 3 : 2;
2356 if (!_mesa_validate_pbo_access(dimensions, &ctx->Pack, texImage->Width,
2357 texImage->Height, texImage->Depth,
2358 format, type, pixels)) {
2359 _mesa_error(ctx, GL_INVALID_OPERATION,
2360 "glGetTexImage(invalid PBO access)");
2361 goto out;
2362 }
2363 }
2364
2365 /* typically, this will call _mesa_get_teximage() */
2366 ctx->Driver.GetTexImage(ctx, target, level, format, type, pixels,
2367 texObj, texImage);
2368
2369 }
2370 out:
2371 _mesa_unlock_texture(ctx, texObj);
2372 }
2373
2374
2375
2376 /**
2377 * Check if the given texture image is bound to any framebuffer objects
2378 * and update/invalidate them.
2379 * XXX We're only checking the currently bound framebuffer object for now.
2380 * In the future, perhaps struct gl_texture_image should have a pointer (or
2381 * list of pointers (yikes)) to the gl_framebuffer(s) which it's bound to.
2382 */
2383 static void
2384 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2385 GLuint face, GLuint level)
2386 {
2387 if (ctx->DrawBuffer->Name) {
2388 GLuint i;
2389 for (i = 0; i < BUFFER_COUNT; i++) {
2390 struct gl_renderbuffer_attachment *att =
2391 ctx->DrawBuffer->Attachment + i;
2392 if (att->Type == GL_TEXTURE &&
2393 att->Texture == texObj &&
2394 att->TextureLevel == level &&
2395 att->CubeMapFace == face) {
2396 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2397 /* Tell driver about the new renderbuffer texture */
2398 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2399 }
2400 }
2401 }
2402 }
2403
2404
2405
2406 /*
2407 * Called from the API. Note that width includes the border.
2408 */
2409 void GLAPIENTRY
2410 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2411 GLsizei width, GLint border, GLenum format,
2412 GLenum type, const GLvoid *pixels )
2413 {
2414 GLsizei postConvWidth = width;
2415 GET_CURRENT_CONTEXT(ctx);
2416 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2417
2418 if (is_color_format(internalFormat)) {
2419 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2420 }
2421
2422 if (target == GL_TEXTURE_1D) {
2423 /* non-proxy target */
2424 struct gl_texture_unit *texUnit;
2425 struct gl_texture_object *texObj;
2426 struct gl_texture_image *texImage;
2427 const GLuint face = texture_face(target);
2428
2429 if (texture_error_check(ctx, target, level, internalFormat,
2430 format, type, 1, postConvWidth, 1, 1, border)) {
2431 return; /* error was recorded */
2432 }
2433
2434 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2435 _mesa_update_state(ctx);
2436
2437 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2438 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2439 _mesa_lock_texture(ctx, texObj);
2440 {
2441 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2442 if (!texImage) {
2443 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2444 goto out;
2445 }
2446
2447 if (texImage->Data) {
2448 ctx->Driver.FreeTexImageData( ctx, texImage );
2449 }
2450
2451 ASSERT(texImage->Data == NULL);
2452
2453 clear_teximage_fields(texImage); /* not really needed, but helpful */
2454 _mesa_init_teximage_fields(ctx, target, texImage,
2455 postConvWidth, 1, 1,
2456 border, internalFormat);
2457
2458 ASSERT(ctx->Driver.TexImage1D);
2459
2460 /* Give the texture to the driver! <pixels> may be null! */
2461 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2462 width, border, format, type, pixels,
2463 &ctx->Unpack, texObj, texImage);
2464
2465 ASSERT(texImage->TexFormat);
2466
2467 update_fbo_texture(ctx, texObj, face, level);
2468
2469 /* state update */
2470 texObj->_Complete = GL_FALSE;
2471 ctx->NewState |= _NEW_TEXTURE;
2472 }
2473 out:
2474 _mesa_unlock_texture(ctx, texObj);
2475 }
2476 else if (target == GL_PROXY_TEXTURE_1D) {
2477 /* Proxy texture: check for errors and update proxy state */
2478 struct gl_texture_image *texImage;
2479 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2480 if (texture_error_check(ctx, target, level, internalFormat,
2481 format, type, 1, postConvWidth, 1, 1, border)) {
2482 /* when error, clear all proxy texture image parameters */
2483 if (texImage)
2484 clear_teximage_fields(texImage);
2485 }
2486 else {
2487 /* no error, set the tex image parameters */
2488 ASSERT(texImage);
2489 _mesa_init_teximage_fields(ctx, target, texImage,
2490 postConvWidth, 1, 1,
2491 border, internalFormat);
2492 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2493 internalFormat, format, type);
2494 }
2495 }
2496 else {
2497 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2498 return;
2499 }
2500 }
2501
2502
2503 void GLAPIENTRY
2504 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2505 GLsizei width, GLsizei height, GLint border,
2506 GLenum format, GLenum type,
2507 const GLvoid *pixels )
2508 {
2509 GLsizei postConvWidth = width, postConvHeight = height;
2510 GET_CURRENT_CONTEXT(ctx);
2511 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2512
2513 if (is_color_format(internalFormat)) {
2514 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2515 &postConvHeight);
2516 }
2517
2518 if (target == GL_TEXTURE_2D ||
2519 (ctx->Extensions.ARB_texture_cube_map &&
2520 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2521 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2522 (ctx->Extensions.NV_texture_rectangle &&
2523 target == GL_TEXTURE_RECTANGLE_NV) ||
2524 (ctx->Extensions.MESA_texture_array &&
2525 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2526 /* non-proxy target */
2527 struct gl_texture_unit *texUnit;
2528 struct gl_texture_object *texObj;
2529 struct gl_texture_image *texImage;
2530 const GLuint face = texture_face(target);
2531
2532 if (texture_error_check(ctx, target, level, internalFormat,
2533 format, type, 2, postConvWidth, postConvHeight,
2534 1, border)) {
2535 return; /* error was recorded */
2536 }
2537
2538 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2539 _mesa_update_state(ctx);
2540
2541 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2542 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2543 _mesa_lock_texture(ctx, texObj);
2544 {
2545 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2546 if (!texImage) {
2547 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2548 goto out;
2549 }
2550
2551 if (texImage->Data) {
2552 ctx->Driver.FreeTexImageData( ctx, texImage );
2553 }
2554
2555 ASSERT(texImage->Data == NULL);
2556 clear_teximage_fields(texImage); /* not really needed, but helpful */
2557 _mesa_init_teximage_fields(ctx, target, texImage,
2558 postConvWidth, postConvHeight, 1,
2559 border, internalFormat);
2560
2561 ASSERT(ctx->Driver.TexImage2D);
2562
2563 /* Give the texture to the driver! <pixels> may be null! */
2564 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2565 width, height, border, format, type, pixels,
2566 &ctx->Unpack, texObj, texImage);
2567
2568 ASSERT(texImage->TexFormat);
2569
2570 update_fbo_texture(ctx, texObj, face, level);
2571
2572 /* state update */
2573 texObj->_Complete = GL_FALSE;
2574 ctx->NewState |= _NEW_TEXTURE;
2575 }
2576 out:
2577 _mesa_unlock_texture(ctx, texObj);
2578 }
2579 else if (target == GL_PROXY_TEXTURE_2D ||
2580 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2581 ctx->Extensions.ARB_texture_cube_map) ||
2582 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2583 ctx->Extensions.NV_texture_rectangle) ||
2584 (ctx->Extensions.MESA_texture_array &&
2585 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2586 /* Proxy texture: check for errors and update proxy state */
2587 struct gl_texture_image *texImage;
2588 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2589 if (texture_error_check(ctx, target, level, internalFormat,
2590 format, type, 2, postConvWidth, postConvHeight,
2591 1, border)) {
2592 /* when error, clear all proxy texture image parameters */
2593 if (texImage)
2594 clear_teximage_fields(ctx->Texture.Proxy2D->Image[0][level]);
2595 }
2596 else {
2597 /* no error, set the tex image parameters */
2598 _mesa_init_teximage_fields(ctx, target, texImage,
2599 postConvWidth, postConvHeight, 1,
2600 border, internalFormat);
2601 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2602 internalFormat, format, type);
2603 }
2604 }
2605 else {
2606 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2607 return;
2608 }
2609 }
2610
2611
2612 /*
2613 * Called by the API or display list executor.
2614 * Note that width and height include the border.
2615 */
2616 void GLAPIENTRY
2617 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2618 GLsizei width, GLsizei height, GLsizei depth,
2619 GLint border, GLenum format, GLenum type,
2620 const GLvoid *pixels )
2621 {
2622 GET_CURRENT_CONTEXT(ctx);
2623 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2624
2625 if (target == GL_TEXTURE_3D ||
2626 (ctx->Extensions.MESA_texture_array &&
2627 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2628 /* non-proxy target */
2629 struct gl_texture_unit *texUnit;
2630 struct gl_texture_object *texObj;
2631 struct gl_texture_image *texImage;
2632 const GLuint face = texture_face(target);
2633
2634 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2635 format, type, 3, width, height, depth, border)) {
2636 return; /* error was recorded */
2637 }
2638
2639 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2640 _mesa_update_state(ctx);
2641
2642 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2643 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2644 _mesa_lock_texture(ctx, texObj);
2645 {
2646 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2647 if (!texImage) {
2648 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2649 goto out;
2650 }
2651
2652 if (texImage->Data) {
2653 ctx->Driver.FreeTexImageData( ctx, texImage );
2654 }
2655
2656 ASSERT(texImage->Data == NULL);
2657 clear_teximage_fields(texImage); /* not really needed, but helpful */
2658 _mesa_init_teximage_fields(ctx, target, texImage,
2659 width, height, depth,
2660 border, internalFormat);
2661
2662 ASSERT(ctx->Driver.TexImage3D);
2663
2664 /* Give the texture to the driver! <pixels> may be null! */
2665 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2666 width, height, depth, border, format, type,
2667 pixels, &ctx->Unpack, texObj, texImage);
2668
2669 ASSERT(texImage->TexFormat);
2670
2671 update_fbo_texture(ctx, texObj, face, level);
2672
2673 /* state update */
2674 texObj->_Complete = GL_FALSE;
2675 ctx->NewState |= _NEW_TEXTURE;
2676 }
2677 out:
2678 _mesa_unlock_texture(ctx, texObj);
2679 }
2680 else if (target == GL_PROXY_TEXTURE_3D ||
2681 (ctx->Extensions.MESA_texture_array &&
2682 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2683 /* Proxy texture: check for errors and update proxy state */
2684 struct gl_texture_image *texImage;
2685 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2686 if (texture_error_check(ctx, target, level, internalFormat,
2687 format, type, 3, width, height, depth, border)) {
2688 /* when error, clear all proxy texture image parameters */
2689 if (texImage)
2690 clear_teximage_fields(texImage);
2691 }
2692 else {
2693 /* no error, set the tex image parameters */
2694 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
2695 border, internalFormat);
2696 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2697 internalFormat, format, type);
2698 }
2699 }
2700 else {
2701 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2702 return;
2703 }
2704 }
2705
2706
2707 void GLAPIENTRY
2708 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2709 GLsizei width, GLsizei height, GLsizei depth,
2710 GLint border, GLenum format, GLenum type,
2711 const GLvoid *pixels )
2712 {
2713 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2714 depth, border, format, type, pixels);
2715 }
2716
2717
2718
2719 void GLAPIENTRY
2720 _mesa_TexSubImage1D( GLenum target, GLint level,
2721 GLint xoffset, GLsizei width,
2722 GLenum format, GLenum type,
2723 const GLvoid *pixels )
2724 {
2725 GLsizei postConvWidth = width;
2726 struct gl_texture_unit *texUnit;
2727 struct gl_texture_object *texObj;
2728 struct gl_texture_image *texImage = NULL;
2729 GET_CURRENT_CONTEXT(ctx);
2730 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2731
2732 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2733 _mesa_update_state(ctx);
2734
2735 /* XXX should test internal format */
2736 if (is_color_format(format)) {
2737 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2738 }
2739
2740 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2741 postConvWidth, 1, 1, format, type)) {
2742 return; /* error was detected */
2743 }
2744
2745
2746 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2747 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2748 assert(texObj);
2749
2750 _mesa_lock_texture(ctx, texObj);
2751 {
2752 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2753
2754 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2755 postConvWidth, 1, 1, format, type, texImage)) {
2756 goto out; /* error was detected */
2757 }
2758
2759 if (width == 0)
2760 goto out; /* no-op, not an error */
2761
2762 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2763 xoffset += texImage->Border;
2764
2765 ASSERT(ctx->Driver.TexSubImage1D);
2766 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2767 format, type, pixels, &ctx->Unpack,
2768 texObj, texImage);
2769 ctx->NewState |= _NEW_TEXTURE;
2770 }
2771 out:
2772 _mesa_unlock_texture(ctx, texObj);
2773 }
2774
2775
2776 void GLAPIENTRY
2777 _mesa_TexSubImage2D( GLenum target, GLint level,
2778 GLint xoffset, GLint yoffset,
2779 GLsizei width, GLsizei height,
2780 GLenum format, GLenum type,
2781 const GLvoid *pixels )
2782 {
2783 GLsizei postConvWidth = width, postConvHeight = height;
2784 struct gl_texture_unit *texUnit;
2785 struct gl_texture_object *texObj;
2786 struct gl_texture_image *texImage;
2787 GET_CURRENT_CONTEXT(ctx);
2788 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2789
2790 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2791 _mesa_update_state(ctx);
2792
2793 /* XXX should test internal format */
2794 if (is_color_format(format)) {
2795 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2796 &postConvHeight);
2797 }
2798
2799 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2800 postConvWidth, postConvHeight, 1, format, type)) {
2801 return; /* error was detected */
2802 }
2803
2804 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2805 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2806 _mesa_lock_texture(ctx, texObj);
2807 {
2808 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2809
2810 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2811 postConvWidth, postConvHeight, 1, format, type,
2812 texImage)) {
2813 goto out; /* error was detected */
2814 }
2815
2816 if (width == 0 || height == 0)
2817 goto out; /* no-op, not an error */
2818
2819 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2820 xoffset += texImage->Border;
2821 yoffset += texImage->Border;
2822
2823 ASSERT(ctx->Driver.TexSubImage2D);
2824 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2825 width, height, format, type, pixels,
2826 &ctx->Unpack, texObj, texImage);
2827 ctx->NewState |= _NEW_TEXTURE;
2828 }
2829 out:
2830 _mesa_unlock_texture(ctx, texObj);
2831 }
2832
2833
2834
2835 void GLAPIENTRY
2836 _mesa_TexSubImage3D( GLenum target, GLint level,
2837 GLint xoffset, GLint yoffset, GLint zoffset,
2838 GLsizei width, GLsizei height, GLsizei depth,
2839 GLenum format, GLenum type,
2840 const GLvoid *pixels )
2841 {
2842 struct gl_texture_unit *texUnit;
2843 struct gl_texture_object *texObj;
2844 struct gl_texture_image *texImage;
2845 GET_CURRENT_CONTEXT(ctx);
2846 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2847
2848 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2849 _mesa_update_state(ctx);
2850
2851 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2852 width, height, depth, format, type)) {
2853 return; /* error was detected */
2854 }
2855
2856 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2857 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2858
2859 _mesa_lock_texture(ctx, texObj);
2860 {
2861 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2862
2863 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2864 width, height, depth, format, type, texImage)) {
2865 goto out; /* error was detected */
2866 }
2867
2868 if (width == 0 || height == 0 || height == 0)
2869 goto out; /* no-op, not an error */
2870
2871 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2872 xoffset += texImage->Border;
2873 yoffset += texImage->Border;
2874 zoffset += texImage->Border;
2875
2876 ASSERT(ctx->Driver.TexSubImage3D);
2877 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2878 xoffset, yoffset, zoffset,
2879 width, height, depth,
2880 format, type, pixels,
2881 &ctx->Unpack, texObj, texImage );
2882 ctx->NewState |= _NEW_TEXTURE;
2883 }
2884 out:
2885 _mesa_unlock_texture(ctx, texObj);
2886 }
2887
2888
2889
2890 void GLAPIENTRY
2891 _mesa_CopyTexImage1D( GLenum target, GLint level,
2892 GLenum internalFormat,
2893 GLint x, GLint y,
2894 GLsizei width, GLint border )
2895 {
2896 struct gl_texture_unit *texUnit;
2897 struct gl_texture_object *texObj;
2898 struct gl_texture_image *texImage;
2899 GLsizei postConvWidth = width;
2900 const GLuint face = texture_face(target);
2901 GET_CURRENT_CONTEXT(ctx);
2902 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2903
2904 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2905 _mesa_update_state(ctx);
2906
2907 if (is_color_format(internalFormat)) {
2908 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2909 }
2910
2911 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2912 postConvWidth, 1, border))
2913 return;
2914
2915 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2916 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2917 _mesa_lock_texture(ctx, texObj);
2918 {
2919 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2920 if (!texImage) {
2921 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2922 goto out;
2923 }
2924
2925 if (texImage->Data) {
2926 ctx->Driver.FreeTexImageData( ctx, texImage );
2927 }
2928
2929 ASSERT(texImage->Data == NULL);
2930
2931 clear_teximage_fields(texImage); /* not really needed, but helpful */
2932 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2933 border, internalFormat);
2934
2935
2936 ASSERT(ctx->Driver.CopyTexImage1D);
2937 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2938 x, y, width, border);
2939
2940 ASSERT(texImage->TexFormat);
2941
2942 update_fbo_texture(ctx, texObj, face, level);
2943
2944 /* state update */
2945 texObj->_Complete = GL_FALSE;
2946 ctx->NewState |= _NEW_TEXTURE;
2947 }
2948 out:
2949 _mesa_unlock_texture(ctx, texObj);
2950 }
2951
2952
2953
2954 void GLAPIENTRY
2955 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2956 GLint x, GLint y, GLsizei width, GLsizei height,
2957 GLint border )
2958 {
2959 struct gl_texture_unit *texUnit;
2960 struct gl_texture_object *texObj;
2961 struct gl_texture_image *texImage;
2962 GLsizei postConvWidth = width, postConvHeight = height;
2963 const GLuint face = texture_face(target);
2964 GET_CURRENT_CONTEXT(ctx);
2965 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2966
2967 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
2968 _mesa_update_state(ctx);
2969
2970 if (is_color_format(internalFormat)) {
2971 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2972 &postConvHeight);
2973 }
2974
2975 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2976 postConvWidth, postConvHeight, border))
2977 return;
2978
2979 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
2980 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2981
2982 _mesa_lock_texture(ctx, texObj);
2983 {
2984 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2985
2986 if (!texImage) {
2987 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2988 goto out;
2989 }
2990
2991 if (texImage->Data) {
2992 ctx->Driver.FreeTexImageData( ctx, texImage );
2993 }
2994
2995 ASSERT(texImage->Data == NULL);
2996
2997 clear_teximage_fields(texImage); /* not really needed, but helpful */
2998 _mesa_init_teximage_fields(ctx, target, texImage,
2999 postConvWidth, postConvHeight, 1,
3000 border, internalFormat);
3001
3002 ASSERT(ctx->Driver.CopyTexImage2D);
3003 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
3004 x, y, width, height, border);
3005
3006 ASSERT(texImage->TexFormat);
3007
3008 update_fbo_texture(ctx, texObj, face, level);
3009
3010 /* state update */
3011 texObj->_Complete = GL_FALSE;
3012 ctx->NewState |= _NEW_TEXTURE;
3013 }
3014 out:
3015 _mesa_unlock_texture(ctx, texObj);
3016 }
3017
3018
3019 void GLAPIENTRY
3020 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3021 GLint xoffset, GLint x, GLint y, GLsizei width )
3022 {
3023 struct gl_texture_unit *texUnit;
3024 struct gl_texture_object *texObj;
3025 struct gl_texture_image *texImage;
3026 GLsizei postConvWidth = width;
3027 GLint yoffset = 0;
3028 GLsizei height = 1;
3029
3030 GET_CURRENT_CONTEXT(ctx);
3031 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3032
3033 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3034 _mesa_update_state(ctx);
3035
3036 /* XXX should test internal format */
3037 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
3038
3039 if (copytexsubimage_error_check(ctx, 1, target, level,
3040 xoffset, 0, 0, postConvWidth, 1))
3041 return;
3042
3043 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3044 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3045
3046 _mesa_lock_texture(ctx, texObj);
3047 {
3048 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3049
3050 if (copytexsubimage_error_check2(ctx, 1, target, level,
3051 xoffset, 0, 0, postConvWidth, 1,
3052 texImage))
3053 goto out;
3054
3055
3056 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3057 xoffset += texImage->Border;
3058
3059 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3060 &width, &height)) {
3061 ASSERT(ctx->Driver.CopyTexSubImage1D);
3062 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
3063 xoffset, x, y, width);
3064 }
3065
3066 ctx->NewState |= _NEW_TEXTURE;
3067 }
3068 out:
3069 _mesa_unlock_texture(ctx, texObj);
3070 }
3071
3072
3073
3074 void GLAPIENTRY
3075 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3076 GLint xoffset, GLint yoffset,
3077 GLint x, GLint y, GLsizei width, GLsizei height )
3078 {
3079 struct gl_texture_unit *texUnit;
3080 struct gl_texture_object *texObj;
3081 struct gl_texture_image *texImage;
3082 GLsizei postConvWidth = width, postConvHeight = height;
3083 GET_CURRENT_CONTEXT(ctx);
3084 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3085
3086 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3087 _mesa_update_state(ctx);
3088
3089 /* XXX should test internal format */
3090 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3091
3092 if (copytexsubimage_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
3093 postConvWidth, postConvHeight))
3094 return;
3095
3096 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3097 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3098
3099 _mesa_lock_texture(ctx, texObj);
3100 {
3101 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3102
3103 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
3104 postConvWidth, postConvHeight, texImage))
3105 goto out;
3106
3107 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3108 xoffset += texImage->Border;
3109 yoffset += texImage->Border;
3110
3111 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3112 &width, &height)) {
3113 ASSERT(ctx->Driver.CopyTexSubImage2D);
3114 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
3115 xoffset, yoffset, x, y, width, height);
3116 }
3117
3118 ctx->NewState |= _NEW_TEXTURE;
3119 }
3120 out:
3121 _mesa_unlock_texture(ctx, texObj);
3122 }
3123
3124
3125
3126 void GLAPIENTRY
3127 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3128 GLint xoffset, GLint yoffset, GLint zoffset,
3129 GLint x, GLint y, GLsizei width, GLsizei height )
3130 {
3131 struct gl_texture_unit *texUnit;
3132 struct gl_texture_object *texObj;
3133 struct gl_texture_image *texImage;
3134 GLsizei postConvWidth = width, postConvHeight = height;
3135 GET_CURRENT_CONTEXT(ctx);
3136 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3137
3138 if (ctx->NewState & _IMAGE_NEW_TRANSFER_STATE)
3139 _mesa_update_state(ctx);
3140
3141 /* XXX should test internal format */
3142 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth, &postConvHeight);
3143
3144 if (copytexsubimage_error_check(ctx, 3, target, level, xoffset, yoffset,
3145 zoffset, postConvWidth, postConvHeight))
3146 return;
3147
3148 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3149 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3150
3151 _mesa_lock_texture(ctx, texObj);
3152 {
3153 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3154
3155 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
3156 zoffset, postConvWidth, postConvHeight,
3157 texImage))
3158 goto out;
3159
3160 /* If we have a border, xoffset=-1 is legal. Bias by border width */
3161 xoffset += texImage->Border;
3162 yoffset += texImage->Border;
3163 zoffset += texImage->Border;
3164
3165 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3166 &width, &height)) {
3167 ASSERT(ctx->Driver.CopyTexSubImage3D);
3168 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
3169 xoffset, yoffset, zoffset,
3170 x, y, width, height);
3171 }
3172
3173 ctx->NewState |= _NEW_TEXTURE;
3174 }
3175 out:
3176 _mesa_unlock_texture(ctx, texObj);
3177 }
3178
3179
3180
3181
3182 /**********************************************************************/
3183 /****** Compressed Textures ******/
3184 /**********************************************************************/
3185
3186
3187 /**
3188 * Error checking for glCompressedTexImage[123]D().
3189 * \return error code or GL_NO_ERROR.
3190 */
3191 static GLenum
3192 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
3193 GLenum target, GLint level,
3194 GLenum internalFormat, GLsizei width,
3195 GLsizei height, GLsizei depth, GLint border,
3196 GLsizei imageSize)
3197 {
3198 GLint expectedSize, maxLevels = 0, maxTextureSize;
3199
3200 if (dimensions == 1) {
3201 /* 1D compressed textures not allowed */
3202 return GL_INVALID_ENUM;
3203 }
3204 else if (dimensions == 2) {
3205 if (target == GL_PROXY_TEXTURE_2D) {
3206 maxLevels = ctx->Const.MaxTextureLevels;
3207 }
3208 else if (target == GL_TEXTURE_2D) {
3209 maxLevels = ctx->Const.MaxTextureLevels;
3210 }
3211 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3212 if (!ctx->Extensions.ARB_texture_cube_map)
3213 return GL_INVALID_ENUM; /*target*/
3214 maxLevels = ctx->Const.MaxCubeTextureLevels;
3215 }
3216 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3217 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3218 if (!ctx->Extensions.ARB_texture_cube_map)
3219 return GL_INVALID_ENUM; /*target*/
3220 maxLevels = ctx->Const.MaxCubeTextureLevels;
3221 }
3222 else {
3223 return GL_INVALID_ENUM; /*target*/
3224 }
3225 }
3226 else if (dimensions == 3) {
3227 /* 3D compressed textures not allowed */
3228 return GL_INVALID_ENUM;
3229 }
3230
3231 maxTextureSize = 1 << (maxLevels - 1);
3232
3233 /* This will detect any invalid internalFormat value */
3234 if (!is_compressed_format(ctx, internalFormat))
3235 return GL_INVALID_ENUM;
3236
3237 /* This should really never fail */
3238 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
3239 return GL_INVALID_ENUM;
3240
3241 if (border != 0)
3242 return GL_INVALID_VALUE;
3243
3244 /*
3245 * XXX We should probably use the proxy texture error check function here.
3246 */
3247 if (width < 1 || width > maxTextureSize ||
3248 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(width) != 1))
3249 return GL_INVALID_VALUE;
3250
3251 if ((height < 1 || height > maxTextureSize ||
3252 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(height) != 1))
3253 && dimensions > 1)
3254 return GL_INVALID_VALUE;
3255
3256 if ((depth < 1 || depth > maxTextureSize ||
3257 (!ctx->Extensions.ARB_texture_non_power_of_two && _mesa_bitcount(depth) != 1))
3258 && dimensions > 2)
3259 return GL_INVALID_VALUE;
3260
3261 /* For cube map, width must equal height */
3262 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3263 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3264 return GL_INVALID_VALUE;
3265
3266 if (level < 0 || level >= maxLevels)
3267 return GL_INVALID_VALUE;
3268
3269 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3270 depth, internalFormat);
3271 if (expectedSize != imageSize)
3272 return GL_INVALID_VALUE;
3273
3274 #if FEATURE_EXT_texture_sRGB
3275 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3276 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3277 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3278 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3279 && border != 0) {
3280 return GL_INVALID_OPERATION;
3281 }
3282 #endif
3283
3284 return GL_NO_ERROR;
3285 }
3286
3287
3288 /**
3289 * Error checking for glCompressedTexSubImage[123]D().
3290 * \warning There are some bad assumptions here about the size of compressed
3291 * texture tiles (multiple of 4) used to test the validity of the
3292 * offset and size parameters.
3293 * \return error code or GL_NO_ERROR.
3294 */
3295 static GLenum
3296 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3297 GLenum target, GLint level,
3298 GLint xoffset, GLint yoffset, GLint zoffset,
3299 GLsizei width, GLsizei height, GLsizei depth,
3300 GLenum format, GLsizei imageSize)
3301 {
3302 GLint expectedSize, maxLevels = 0, maxTextureSize;
3303 (void) zoffset;
3304
3305 if (dimensions == 1) {
3306 /* 1D compressed textures not allowed */
3307 return GL_INVALID_ENUM;
3308 }
3309 else if (dimensions == 2) {
3310 if (target == GL_PROXY_TEXTURE_2D) {
3311 maxLevels = ctx->Const.MaxTextureLevels;
3312 }
3313 else if (target == GL_TEXTURE_2D) {
3314 maxLevels = ctx->Const.MaxTextureLevels;
3315 }
3316 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3317 if (!ctx->Extensions.ARB_texture_cube_map)
3318 return GL_INVALID_ENUM; /*target*/
3319 maxLevels = ctx->Const.MaxCubeTextureLevels;
3320 }
3321 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3322 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3323 if (!ctx->Extensions.ARB_texture_cube_map)
3324 return GL_INVALID_ENUM; /*target*/
3325 maxLevels = ctx->Const.MaxCubeTextureLevels;
3326 }
3327 else {
3328 return GL_INVALID_ENUM; /*target*/
3329 }
3330 }
3331 else if (dimensions == 3) {
3332 /* 3D compressed textures not allowed */
3333 return GL_INVALID_ENUM;
3334 }
3335
3336 maxTextureSize = 1 << (maxLevels - 1);
3337
3338 /* this will catch any invalid compressed format token */
3339 if (!is_compressed_format(ctx, format))
3340 return GL_INVALID_ENUM;
3341
3342 if (width < 1 || width > maxTextureSize)
3343 return GL_INVALID_VALUE;
3344
3345 if ((height < 1 || height > maxTextureSize)
3346 && dimensions > 1)
3347 return GL_INVALID_VALUE;
3348
3349 if (level < 0 || level >= maxLevels)
3350 return GL_INVALID_VALUE;
3351
3352 /* XXX these tests are specific to the compressed format.
3353 * this code should be generalized in some way.
3354 */
3355 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3356 return GL_INVALID_VALUE;
3357
3358 if ((width & 3) != 0 && width != 2 && width != 1)
3359 return GL_INVALID_VALUE;
3360
3361 if ((height & 3) != 0 && height != 2 && height != 1)
3362 return GL_INVALID_VALUE;
3363
3364 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3365 depth, format);
3366 if (expectedSize != imageSize)
3367 return GL_INVALID_VALUE;
3368
3369 return GL_NO_ERROR;
3370 }
3371
3372
3373
3374 void GLAPIENTRY
3375 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3376 GLenum internalFormat, GLsizei width,
3377 GLint border, GLsizei imageSize,
3378 const GLvoid *data)
3379 {
3380 GET_CURRENT_CONTEXT(ctx);
3381 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3382
3383 if (target == GL_TEXTURE_1D) {
3384 /* non-proxy target */
3385 struct gl_texture_unit *texUnit;
3386 struct gl_texture_object *texObj;
3387 struct gl_texture_image *texImage;
3388 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3389 internalFormat, width, 1, 1, border, imageSize);
3390 if (error) {
3391 _mesa_error(ctx, error, "glCompressedTexImage1D");
3392 return;
3393 }
3394
3395 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3396 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3397
3398 _mesa_lock_texture(ctx, texObj);
3399 {
3400 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3401 if (!texImage) {
3402 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3403 goto out;
3404 }
3405
3406 if (texImage->Data) {
3407 ctx->Driver.FreeTexImageData( ctx, texImage );
3408 }
3409 ASSERT(texImage->Data == NULL);
3410
3411 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3412 border, internalFormat);
3413
3414 ASSERT(ctx->Driver.CompressedTexImage1D);
3415 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3416 internalFormat, width, border,
3417 imageSize, data,
3418 texObj, texImage);
3419
3420 /* state update */
3421 texObj->_Complete = GL_FALSE;
3422 ctx->NewState |= _NEW_TEXTURE;
3423 }
3424 out:
3425 _mesa_unlock_texture(ctx, texObj);
3426 }
3427 else if (target == GL_PROXY_TEXTURE_1D) {
3428 /* Proxy texture: check for errors and update proxy state */
3429 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3430 internalFormat, width, 1, 1, border, imageSize);
3431 if (!error) {
3432 ASSERT(ctx->Driver.TestProxyTexImage);
3433 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3434 internalFormat, GL_NONE, GL_NONE,
3435 width, 1, 1, border);
3436 }
3437 if (error) {
3438 /* if error, clear all proxy texture image parameters */
3439 struct gl_texture_image *texImage;
3440 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3441 if (texImage)
3442 clear_teximage_fields(texImage);
3443 }
3444 else {
3445 /* store the teximage parameters */
3446 struct gl_texture_unit *texUnit;
3447 struct gl_texture_object *texObj;
3448 struct gl_texture_image *texImage;
3449 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3450 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3451
3452 _mesa_lock_texture(ctx, texObj);
3453 {
3454 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3455 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3456 border, internalFormat);
3457 }
3458 _mesa_unlock_texture(ctx, texObj);
3459 }
3460 }
3461 else {
3462 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3463 return;
3464 }
3465 }
3466
3467
3468 void GLAPIENTRY
3469 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3470 GLenum internalFormat, GLsizei width,
3471 GLsizei height, GLint border, GLsizei imageSize,
3472 const GLvoid *data)
3473 {
3474 GET_CURRENT_CONTEXT(ctx);
3475 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3476
3477 if (target == GL_TEXTURE_2D ||
3478 (ctx->Extensions.ARB_texture_cube_map &&
3479 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3480 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3481 /* non-proxy target */
3482 struct gl_texture_unit *texUnit;
3483 struct gl_texture_object *texObj;
3484 struct gl_texture_image *texImage;
3485 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3486 internalFormat, width, height, 1, border, imageSize);
3487 if (error) {
3488 _mesa_error(ctx, error, "glCompressedTexImage2D");
3489 return;
3490 }
3491
3492 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3493 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3494
3495 _mesa_lock_texture(ctx, texObj);
3496 {
3497 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3498 if (!texImage) {
3499 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3500 goto out;
3501 }
3502
3503 if (texImage->Data) {
3504 ctx->Driver.FreeTexImageData( ctx, texImage );
3505 }
3506 ASSERT(texImage->Data == NULL);
3507
3508 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3509 border, internalFormat);
3510
3511 ASSERT(ctx->Driver.CompressedTexImage2D);
3512 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3513 internalFormat, width, height,
3514 border, imageSize, data,
3515 texObj, texImage);
3516
3517 /* state update */
3518 texObj->_Complete = GL_FALSE;
3519 ctx->NewState |= _NEW_TEXTURE;
3520 }
3521 out:
3522 _mesa_unlock_texture(ctx, texObj);
3523 }
3524 else if (target == GL_PROXY_TEXTURE_2D ||
3525 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3526 ctx->Extensions.ARB_texture_cube_map)) {
3527 /* Proxy texture: check for errors and update proxy state */
3528 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3529 internalFormat, width, height, 1, border, imageSize);
3530 if (!error) {
3531 ASSERT(ctx->Driver.TestProxyTexImage);
3532 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3533 internalFormat, GL_NONE, GL_NONE,
3534 width, height, 1, border);
3535 }
3536 if (error) {
3537 /* if error, clear all proxy texture image parameters */
3538 struct gl_texture_image *texImage;
3539 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3540 if (texImage)
3541 clear_teximage_fields(texImage);
3542 }
3543 else {
3544 /* store the teximage parameters */
3545 struct gl_texture_unit *texUnit;
3546 struct gl_texture_object *texObj;
3547 struct gl_texture_image *texImage;
3548 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3549 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3550
3551 _mesa_lock_texture(ctx, texObj);
3552 {
3553 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3554 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3555 border, internalFormat);
3556 }
3557 _mesa_unlock_texture(ctx, texObj);
3558 }
3559 }
3560 else {
3561 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3562 return;
3563 }
3564 }
3565
3566
3567 void GLAPIENTRY
3568 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3569 GLenum internalFormat, GLsizei width,
3570 GLsizei height, GLsizei depth, GLint border,
3571 GLsizei imageSize, const GLvoid *data)
3572 {
3573 GET_CURRENT_CONTEXT(ctx);
3574 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3575
3576 if (target == GL_TEXTURE_3D) {
3577 /* non-proxy target */
3578 struct gl_texture_unit *texUnit;
3579 struct gl_texture_object *texObj;
3580 struct gl_texture_image *texImage;
3581 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3582 internalFormat, width, height, depth, border, imageSize);
3583 if (error) {
3584 _mesa_error(ctx, error, "glCompressedTexImage3D");
3585 return;
3586 }
3587
3588 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3589 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3590 _mesa_lock_texture(ctx, texObj);
3591 {
3592 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3593 if (!texImage) {
3594 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3595 goto out;
3596 }
3597
3598 if (texImage->Data) {
3599 ctx->Driver.FreeTexImageData( ctx, texImage );
3600 }
3601 ASSERT(texImage->Data == NULL);
3602
3603 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3604 border, internalFormat);
3605
3606 ASSERT(ctx->Driver.CompressedTexImage3D);
3607 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3608 internalFormat,
3609 width, height, depth,
3610 border, imageSize, data,
3611 texObj, texImage);
3612
3613 /* state update */
3614 texObj->_Complete = GL_FALSE;
3615 ctx->NewState |= _NEW_TEXTURE;
3616 }
3617 out:
3618 _mesa_unlock_texture(ctx, texObj);
3619 }
3620 else if (target == GL_PROXY_TEXTURE_3D) {
3621 /* Proxy texture: check for errors and update proxy state */
3622 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3623 internalFormat, width, height, depth, border, imageSize);
3624 if (!error) {
3625 ASSERT(ctx->Driver.TestProxyTexImage);
3626 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3627 internalFormat, GL_NONE, GL_NONE,
3628 width, height, depth, border);
3629 }
3630 if (error) {
3631 /* if error, clear all proxy texture image parameters */
3632 struct gl_texture_image *texImage;
3633 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3634 if (texImage)
3635 clear_teximage_fields(texImage);
3636 }
3637 else {
3638 /* store the teximage parameters */
3639 struct gl_texture_unit *texUnit;
3640 struct gl_texture_object *texObj;
3641 struct gl_texture_image *texImage;
3642 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3643 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3644 _mesa_lock_texture(ctx, texObj);
3645 {
3646 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3647 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3648 depth, border, internalFormat);
3649 }
3650 _mesa_unlock_texture(ctx, texObj);
3651 }
3652 }
3653 else {
3654 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3655 return;
3656 }
3657 }
3658
3659
3660 void GLAPIENTRY
3661 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3662 GLsizei width, GLenum format,
3663 GLsizei imageSize, const GLvoid *data)
3664 {
3665 struct gl_texture_unit *texUnit;
3666 struct gl_texture_object *texObj;
3667 struct gl_texture_image *texImage;
3668 GLenum error;
3669 GET_CURRENT_CONTEXT(ctx);
3670 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3671
3672 error = compressed_subtexture_error_check(ctx, 1, target, level,
3673 xoffset, 0, 0, /* pos */
3674 width, 1, 1, /* size */
3675 format, imageSize);
3676 if (error) {
3677 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3678 return;
3679 }
3680
3681 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3682 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3683 _mesa_lock_texture(ctx, texObj);
3684 {
3685 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3686 assert(texImage);
3687
3688 if ((GLint) format != texImage->InternalFormat) {
3689 _mesa_error(ctx, GL_INVALID_OPERATION,
3690 "glCompressedTexSubImage1D(format)");
3691 goto out;
3692 }
3693
3694 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3695 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3696 goto out;
3697 }
3698
3699 if (width == 0)
3700 goto out; /* no-op, not an error */
3701
3702 if (ctx->Driver.CompressedTexSubImage1D) {
3703 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3704 xoffset, width,
3705 format, imageSize, data,
3706 texObj, texImage);
3707 }
3708 ctx->NewState |= _NEW_TEXTURE;
3709 }
3710 out:
3711 _mesa_unlock_texture(ctx, texObj);
3712 }
3713
3714
3715 void GLAPIENTRY
3716 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3717 GLint yoffset, GLsizei width, GLsizei height,
3718 GLenum format, GLsizei imageSize,
3719 const GLvoid *data)
3720 {
3721 struct gl_texture_unit *texUnit;
3722 struct gl_texture_object *texObj;
3723 struct gl_texture_image *texImage;
3724 GLenum error;
3725 GET_CURRENT_CONTEXT(ctx);
3726 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3727
3728 error = compressed_subtexture_error_check(ctx, 2, target, level,
3729 xoffset, yoffset, 0, /* pos */
3730 width, height, 1, /* size */
3731 format, imageSize);
3732 if (error) {
3733 /* XXX proxy target? */
3734 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3735 return;
3736 }
3737
3738 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3739 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3740 _mesa_lock_texture(ctx, texObj);
3741 {
3742 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3743 assert(texImage);
3744
3745 if ((GLint) format != texImage->InternalFormat) {
3746 _mesa_error(ctx, GL_INVALID_OPERATION,
3747 "glCompressedTexSubImage2D(format)");
3748 goto out;
3749 }
3750
3751 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3752 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3753 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3754 goto out;
3755 }
3756
3757 if (width == 0 || height == 0)
3758 goto out; /* no-op, not an error */
3759
3760 if (ctx->Driver.CompressedTexSubImage2D) {
3761 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3762 xoffset, yoffset, width, height,
3763 format, imageSize, data,
3764 texObj, texImage);
3765 }
3766 ctx->NewState |= _NEW_TEXTURE;
3767 }
3768 out:
3769 _mesa_unlock_texture(ctx, texObj);
3770 }
3771
3772
3773 void GLAPIENTRY
3774 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3775 GLint yoffset, GLint zoffset, GLsizei width,
3776 GLsizei height, GLsizei depth, GLenum format,
3777 GLsizei imageSize, const GLvoid *data)
3778 {
3779 struct gl_texture_unit *texUnit;
3780 struct gl_texture_object *texObj;
3781 struct gl_texture_image *texImage;
3782 GLenum error;
3783 GET_CURRENT_CONTEXT(ctx);
3784 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3785
3786 error = compressed_subtexture_error_check(ctx, 3, target, level,
3787 xoffset, yoffset, zoffset,/*pos*/
3788 width, height, depth, /*size*/
3789 format, imageSize);
3790 if (error) {
3791 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3792 return;
3793 }
3794
3795 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3796 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3797 _mesa_lock_texture(ctx, texObj);
3798 {
3799 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3800 assert(texImage);
3801
3802 if ((GLint) format != texImage->InternalFormat) {
3803 _mesa_error(ctx, GL_INVALID_OPERATION,
3804 "glCompressedTexSubImage3D(format)");
3805 goto out;
3806 }
3807
3808 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3809 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3810 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3811 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3812 goto out;
3813 }
3814
3815 if (width == 0 || height == 0 || depth == 0)
3816 goto out; /* no-op, not an error */
3817
3818 if (ctx->Driver.CompressedTexSubImage3D) {
3819 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3820 xoffset, yoffset, zoffset,
3821 width, height, depth,
3822 format, imageSize, data,
3823 texObj, texImage);
3824 }
3825 ctx->NewState |= _NEW_TEXTURE;
3826 }
3827 out:
3828 _mesa_unlock_texture(ctx, texObj);
3829 }
3830
3831
3832 void GLAPIENTRY
3833 _mesa_GetCompressedTexImageARB(GLenum target, GLint level, GLvoid *img)
3834 {
3835 const struct gl_texture_unit *texUnit;
3836 struct gl_texture_object *texObj;
3837 struct gl_texture_image *texImage;
3838 GLint maxLevels;
3839 GET_CURRENT_CONTEXT(ctx);
3840 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3841
3842 texUnit = &ctx->Texture.Unit[ctx->Texture.CurrentUnit];
3843 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3844 if (!texObj) {
3845 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB");
3846 return;
3847 }
3848
3849 maxLevels = _mesa_max_texture_levels(ctx, target);
3850 ASSERT(maxLevels > 0); /* 0 indicates bad target, caught above */
3851
3852 if (level < 0 || level >= maxLevels) {
3853 _mesa_error(ctx, GL_INVALID_VALUE, "glGetCompressedTexImageARB(level)");
3854 return;
3855 }
3856
3857 if (_mesa_is_proxy_texture(target)) {
3858 _mesa_error(ctx, GL_INVALID_ENUM, "glGetCompressedTexImageARB(target)");
3859 return;
3860 }
3861
3862 _mesa_lock_texture(ctx, texObj);
3863 {
3864 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3865 if (texImage) {
3866 if (texImage->IsCompressed) {
3867 /* this typically calls _mesa_get_compressed_teximage() */
3868 ctx->Driver.GetCompressedTexImage(ctx, target, level, img,
3869 texObj, texImage);
3870 }
3871 else {
3872 _mesa_error(ctx, GL_INVALID_OPERATION,
3873 "glGetCompressedTexImageARB");
3874 }
3875 }
3876 else {
3877 /* probably invalid mipmap level */
3878 _mesa_error(ctx, GL_INVALID_VALUE,
3879 "glGetCompressedTexImageARB(level)");
3880 }
3881 }
3882 _mesa_unlock_texture(ctx, texObj);
3883 }