projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
mesa: remove last of gotos
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * mesa 3-D graphics library
3 * Version: 7.6
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 /**
28 * \file teximage.c
29 * Texture image-related functions.
30 */
31
32
33 #include "glheader.h"
34 #include "bufferobj.h"
35 #include "context.h"
36 #if FEATURE_convolve
37 #include "convolve.h"
38 #endif
39 #include "fbobject.h"
40 #include "framebuffer.h"
41 #include "hash.h"
42 #include "image.h"
43 #include "imports.h"
44 #include "macros.h"
45 #include "state.h"
46 #include "texcompress.h"
47 #include "texformat.h"
48 #include "teximage.h"
49 #include "texstate.h"
50 #include "texstore.h"
51 #include "mtypes.h"
52
53
54 /**
55 * State changes which we care about for glCopyTex[Sub]Image() calls.
56 * In particular, we care about pixel transfer state and buffer state
57 * (such as glReadBuffer to make sure we read from the right renderbuffer).
58 */
59 #define NEW_COPY_TEX_STATE (_MESA_NEW_TRANSFER_STATE | \
60 _NEW_BUFFERS | \
61 _NEW_PIXEL)
62
63
64
65 /**
66 * We allocate texture memory on 512-byte boundaries so we can use MMX/SSE
67 * elsewhere.
68 */
69 void *
70 _mesa_alloc_texmemory(GLsizei bytes)
71 {
72 return _mesa_align_malloc(bytes, 512);
73 }
74
75
76 /**
77 * Free texture memory allocated with _mesa_alloc_texmemory()
78 */
79 void
80 _mesa_free_texmemory(void *m)
81 {
82 _mesa_align_free(m);
83 }
84
85
86
87
88 #if 0
89 static void PrintTexture(GLcontext *ctx, const struct gl_texture_image *img)
90 {
91 #if CHAN_TYPE != GL_UNSIGNED_BYTE
92 _mesa_problem(NULL, "PrintTexture not supported");
93 #else
94 GLuint i, j, c;
95 const GLubyte *data = (const GLubyte *) img->Data;
96
97 if (!data) {
98 _mesa_printf("No texture data\n");
99 return;
100 }
101
102 switch (img->Format) {
103 case GL_ALPHA:
104 case GL_LUMINANCE:
105 case GL_INTENSITY:
106 case GL_COLOR_INDEX:
107 c = 1;
108 break;
109 case GL_LUMINANCE_ALPHA:
110 c = 2;
111 break;
112 case GL_RGB:
113 c = 3;
114 break;
115 case GL_RGBA:
116 c = 4;
117 break;
118 default:
119 _mesa_problem(NULL, "error in PrintTexture\n");
120 return;
121 }
122
123 for (i = 0; i < img->Height; i++) {
124 for (j = 0; j < img->Width; j++) {
125 if (c==1)
126 _mesa_printf("%02x ", data[0]);
127 else if (c==2)
128 _mesa_printf("%02x%02x ", data[0], data[1]);
129 else if (c==3)
130 _mesa_printf("%02x%02x%02x ", data[0], data[1], data[2]);
131 else if (c==4)
132 _mesa_printf("%02x%02x%02x%02x ", data[0], data[1], data[2], data[3]);
133 data += (img->RowStride - img->Width) * c;
134 }
135 /* XXX use img->ImageStride here */
136 _mesa_printf("\n");
137 }
138 #endif
139 }
140 #endif
141
142
143 /*
144 * Compute floor(log_base_2(n)).
145 * If n < 0 return -1.
146 */
147 static int
148 logbase2( int n )
149 {
150 GLint i = 1;
151 GLint log2 = 0;
152
153 if (n < 0)
154 return -1;
155
156 if (n == 0)
157 return 0;
158
159 while ( n > i ) {
160 i *= 2;
161 log2++;
162 }
163 if (i != n) {
164 return log2 - 1;
165 }
166 else {
167 return log2;
168 }
169 }
170
171
172
173 /**
174 * Return the simple base format for a given internal texture format.
175 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
176 *
177 * \param ctx GL context.
178 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
179 *
180 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
181 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
182 *
183 * This is the format which is used during texture application (i.e. the
184 * texture format and env mode determine the arithmetic used.
185 *
186 * XXX this could be static
187 */
188 GLint
189 _mesa_base_tex_format( GLcontext *ctx, GLint internalFormat )
190 {
191 switch (internalFormat) {
192 case GL_ALPHA:
193 case GL_ALPHA4:
194 case GL_ALPHA8:
195 case GL_ALPHA12:
196 case GL_ALPHA16:
197 return GL_ALPHA;
198 case 1:
199 case GL_LUMINANCE:
200 case GL_LUMINANCE4:
201 case GL_LUMINANCE8:
202 case GL_LUMINANCE12:
203 case GL_LUMINANCE16:
204 return GL_LUMINANCE;
205 case 2:
206 case GL_LUMINANCE_ALPHA:
207 case GL_LUMINANCE4_ALPHA4:
208 case GL_LUMINANCE6_ALPHA2:
209 case GL_LUMINANCE8_ALPHA8:
210 case GL_LUMINANCE12_ALPHA4:
211 case GL_LUMINANCE12_ALPHA12:
212 case GL_LUMINANCE16_ALPHA16:
213 return GL_LUMINANCE_ALPHA;
214 case GL_INTENSITY:
215 case GL_INTENSITY4:
216 case GL_INTENSITY8:
217 case GL_INTENSITY12:
218 case GL_INTENSITY16:
219 return GL_INTENSITY;
220 case 3:
221 case GL_RGB:
222 case GL_R3_G3_B2:
223 case GL_RGB4:
224 case GL_RGB5:
225 case GL_RGB8:
226 case GL_RGB10:
227 case GL_RGB12:
228 case GL_RGB16:
229 return GL_RGB;
230 case 4:
231 case GL_RGBA:
232 case GL_RGBA2:
233 case GL_RGBA4:
234 case GL_RGB5_A1:
235 case GL_RGBA8:
236 case GL_RGB10_A2:
237 case GL_RGBA12:
238 case GL_RGBA16:
239 return GL_RGBA;
240 default:
241 ; /* fallthrough */
242 }
243
244 if (ctx->Extensions.EXT_paletted_texture) {
245 switch (internalFormat) {
246 case GL_COLOR_INDEX:
247 case GL_COLOR_INDEX1_EXT:
248 case GL_COLOR_INDEX2_EXT:
249 case GL_COLOR_INDEX4_EXT:
250 case GL_COLOR_INDEX8_EXT:
251 case GL_COLOR_INDEX12_EXT:
252 case GL_COLOR_INDEX16_EXT:
253 return GL_COLOR_INDEX;
254 default:
255 ; /* fallthrough */
256 }
257 }
258
259 if (ctx->Extensions.ARB_depth_texture) {
260 switch (internalFormat) {
261 case GL_DEPTH_COMPONENT:
262 case GL_DEPTH_COMPONENT16:
263 case GL_DEPTH_COMPONENT24:
264 case GL_DEPTH_COMPONENT32:
265 return GL_DEPTH_COMPONENT;
266 default:
267 ; /* fallthrough */
268 }
269 }
270
271 switch (internalFormat) {
272 case GL_COMPRESSED_ALPHA:
273 return GL_ALPHA;
274 case GL_COMPRESSED_LUMINANCE:
275 return GL_LUMINANCE;
276 case GL_COMPRESSED_LUMINANCE_ALPHA:
277 return GL_LUMINANCE_ALPHA;
278 case GL_COMPRESSED_INTENSITY:
279 return GL_INTENSITY;
280 case GL_COMPRESSED_RGB:
281 return GL_RGB;
282 case GL_COMPRESSED_RGBA:
283 return GL_RGBA;
284 default:
285 ; /* fallthrough */
286 }
287
288 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
289 switch (internalFormat) {
290 case GL_COMPRESSED_RGB_FXT1_3DFX:
291 return GL_RGB;
292 case GL_COMPRESSED_RGBA_FXT1_3DFX:
293 return GL_RGBA;
294 default:
295 ; /* fallthrough */
296 }
297 }
298
299 if (ctx->Extensions.EXT_texture_compression_s3tc) {
300 switch (internalFormat) {
301 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
302 return GL_RGB;
303 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
304 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
305 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
306 return GL_RGBA;
307 default:
308 ; /* fallthrough */
309 }
310 }
311
312 if (ctx->Extensions.S3_s3tc) {
313 switch (internalFormat) {
314 case GL_RGB_S3TC:
315 case GL_RGB4_S3TC:
316 return GL_RGB;
317 case GL_RGBA_S3TC:
318 case GL_RGBA4_S3TC:
319 return GL_RGBA;
320 default:
321 ; /* fallthrough */
322 }
323 }
324
325 if (ctx->Extensions.MESA_ycbcr_texture) {
326 if (internalFormat == GL_YCBCR_MESA)
327 return GL_YCBCR_MESA;
328 }
329
330 if (ctx->Extensions.ARB_texture_float) {
331 switch (internalFormat) {
332 case GL_ALPHA16F_ARB:
333 case GL_ALPHA32F_ARB:
334 return GL_ALPHA;
335 case GL_RGBA16F_ARB:
336 case GL_RGBA32F_ARB:
337 return GL_RGBA;
338 case GL_RGB16F_ARB:
339 case GL_RGB32F_ARB:
340 return GL_RGB;
341 case GL_INTENSITY16F_ARB:
342 case GL_INTENSITY32F_ARB:
343 return GL_INTENSITY;
344 case GL_LUMINANCE16F_ARB:
345 case GL_LUMINANCE32F_ARB:
346 return GL_LUMINANCE;
347 case GL_LUMINANCE_ALPHA16F_ARB:
348 case GL_LUMINANCE_ALPHA32F_ARB:
349 return GL_LUMINANCE_ALPHA;
350 default:
351 ; /* fallthrough */
352 }
353 }
354
355 if (ctx->Extensions.ATI_envmap_bumpmap) {
356 switch (internalFormat) {
357 case GL_DUDV_ATI:
358 case GL_DU8DV8_ATI:
359 return GL_DUDV_ATI;
360 default:
361 ; /* fallthrough */
362 }
363 }
364
365 if (ctx->Extensions.MESA_texture_signed_rgba) {
366 switch (internalFormat) {
367 case GL_RGBA_SNORM:
368 case GL_RGBA8_SNORM:
369 return GL_RGBA;
370 default:
371 ; /* fallthrough */
372 }
373 }
374
375 if (ctx->Extensions.EXT_packed_depth_stencil) {
376 switch (internalFormat) {
377 case GL_DEPTH_STENCIL_EXT:
378 case GL_DEPTH24_STENCIL8_EXT:
379 return GL_DEPTH_STENCIL_EXT;
380 default:
381 ; /* fallthrough */
382 }
383 }
384
385 #if FEATURE_EXT_texture_sRGB
386 if (ctx->Extensions.EXT_texture_sRGB) {
387 switch (internalFormat) {
388 case GL_SRGB_EXT:
389 case GL_SRGB8_EXT:
390 case GL_COMPRESSED_SRGB_EXT:
391 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
392 return GL_RGB;
393 case GL_SRGB_ALPHA_EXT:
394 case GL_SRGB8_ALPHA8_EXT:
395 case GL_COMPRESSED_SRGB_ALPHA_EXT:
396 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
397 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
398 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
399 return GL_RGBA;
400 case GL_SLUMINANCE_ALPHA_EXT:
401 case GL_SLUMINANCE8_ALPHA8_EXT:
402 case GL_COMPRESSED_SLUMINANCE_EXT:
403 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
404 return GL_LUMINANCE_ALPHA;
405 case GL_SLUMINANCE_EXT:
406 case GL_SLUMINANCE8_EXT:
407 return GL_LUMINANCE;
408 default:
409 ; /* fallthrough */
410 }
411 }
412
413 #endif /* FEATURE_EXT_texture_sRGB */
414
415 return -1; /* error */
416 }
417
418
419 /**
420 * Test if it is a supported compressed format.
421 *
422 * \param internalFormat the internal format token provided by the user.
423 *
424 * \ret GL_TRUE if \p internalFormat is a supported compressed format, or
425 * GL_FALSE otherwise.
426 *
427 * Currently only GL_COMPRESSED_RGB_FXT1_3DFX and GL_COMPRESSED_RGBA_FXT1_3DFX
428 * are supported.
429 */
430 static GLboolean
431 is_compressed_format(GLcontext *ctx, GLenum internalFormat)
432 {
433 GLint supported[100]; /* 100 should be plenty */
434 GLuint i, n;
435
436 n = _mesa_get_compressed_formats(ctx, supported, GL_TRUE);
437 ASSERT(n < 100);
438 for (i = 0; i < n; i++) {
439 if ((GLint) internalFormat == supported[i]) {
440 return GL_TRUE;
441 }
442 }
443 return GL_FALSE;
444 }
445
446
447 /**
448 * For cube map faces, return a face index in [0,5].
449 * For other targets return 0;
450 */
451 GLuint
452 _mesa_tex_target_to_face(GLenum target)
453 {
454 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
455 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)
456 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
457 else
458 return 0;
459 }
460
461
462
463 /**
464 * Store a gl_texture_image pointer in a gl_texture_object structure
465 * according to the target and level parameters.
466 *
467 * \param tObj texture object.
468 * \param target texture target.
469 * \param level image level.
470 * \param texImage texture image.
471 *
472 * This was basically prompted by the introduction of cube maps.
473 */
474 void
475 _mesa_set_tex_image(struct gl_texture_object *tObj,
476 GLenum target, GLint level,
477 struct gl_texture_image *texImage)
478 {
479 const GLuint face = _mesa_tex_target_to_face(target);
480
481 ASSERT(tObj);
482 ASSERT(texImage);
483 ASSERT(target != GL_TEXTURE_RECTANGLE_NV || level == 0);
484
485 tObj->Image[face][level] = texImage;
486
487 /* Set the 'back' pointer */
488 texImage->TexObject = tObj;
489 }
490
491
492 /**
493 * Allocate a texture image structure.
494 *
495 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
496 * driver.
497 *
498 * \return a pointer to gl_texture_image struct with all fields initialized to
499 * zero.
500 */
501 struct gl_texture_image *
502 _mesa_new_texture_image( GLcontext *ctx )
503 {
504 (void) ctx;
505 return CALLOC_STRUCT(gl_texture_image);
506 }
507
508
509 /**
510 * Free texture image data.
511 * This function is a fallback called via ctx->Driver.FreeTexImageData().
512 *
513 * \param texImage texture image.
514 *
515 * Free the texture image data if it's not marked as client data.
516 */
517 void
518 _mesa_free_texture_image_data(GLcontext *ctx,
519 struct gl_texture_image *texImage)
520 {
521 (void) ctx;
522
523 if (texImage->Data && !texImage->IsClientData) {
524 /* free the old texture data */
525 _mesa_free_texmemory(texImage->Data);
526 }
527
528 texImage->Data = NULL;
529 }
530
531
532 /**
533 * Free texture image.
534 *
535 * \param texImage texture image.
536 *
537 * Free the texture image structure and the associated image data.
538 */
539 void
540 _mesa_delete_texture_image( GLcontext *ctx, struct gl_texture_image *texImage )
541 {
542 /* Free texImage->Data and/or any other driver-specific texture
543 * image storage.
544 */
545 ASSERT(ctx->Driver.FreeTexImageData);
546 ctx->Driver.FreeTexImageData( ctx, texImage );
547
548 ASSERT(texImage->Data == NULL);
549 if (texImage->ImageOffsets)
550 _mesa_free(texImage->ImageOffsets);
551 _mesa_free(texImage);
552 }
553
554
555 /**
556 * Test if a target is a proxy target.
557 *
558 * \param target texture target.
559 *
560 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
561 */
562 GLboolean
563 _mesa_is_proxy_texture(GLenum target)
564 {
565 /* NUM_TEXTURE_TARGETS should match number of terms below */
566 assert(NUM_TEXTURE_TARGETS == 7);
567
568 return (target == GL_PROXY_TEXTURE_1D ||
569 target == GL_PROXY_TEXTURE_2D ||
570 target == GL_PROXY_TEXTURE_3D ||
571 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
572 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
573 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
574 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT);
575 }
576
577
578 /**
579 * Get the texture object that corresponds to the target of the given texture unit.
580 *
581 * \param ctx GL context.
582 * \param texUnit texture unit.
583 * \param target texture target.
584 *
585 * \return pointer to the texture object on success, or NULL on failure.
586 *
587 * \sa gl_texture_unit.
588 */
589 struct gl_texture_object *
590 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
591 GLenum target)
592 {
593 switch (target) {
594 case GL_TEXTURE_1D:
595 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
596 case GL_PROXY_TEXTURE_1D:
597 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
598 case GL_TEXTURE_2D:
599 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
600 case GL_PROXY_TEXTURE_2D:
601 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
602 case GL_TEXTURE_3D:
603 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
604 case GL_PROXY_TEXTURE_3D:
605 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
606 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
607 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
608 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
609 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
610 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
611 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
612 case GL_TEXTURE_CUBE_MAP_ARB:
613 return ctx->Extensions.ARB_texture_cube_map
614 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
615 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
616 return ctx->Extensions.ARB_texture_cube_map
617 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
618 case GL_TEXTURE_RECTANGLE_NV:
619 return ctx->Extensions.NV_texture_rectangle
620 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
621 case GL_PROXY_TEXTURE_RECTANGLE_NV:
622 return ctx->Extensions.NV_texture_rectangle
623 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
624 case GL_TEXTURE_1D_ARRAY_EXT:
625 return ctx->Extensions.MESA_texture_array
626 ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
627 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
628 return ctx->Extensions.MESA_texture_array
629 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
630 case GL_TEXTURE_2D_ARRAY_EXT:
631 return ctx->Extensions.MESA_texture_array
632 ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
633 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
634 return ctx->Extensions.MESA_texture_array
635 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
636 default:
637 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
638 return NULL;
639 }
640 }
641
642
643 /**
644 * Get a texture image pointer from a texture object, given a texture
645 * target and mipmap level. The target and level parameters should
646 * have already been error-checked.
647 *
648 * \param ctx GL context.
649 * \param texObj texture unit.
650 * \param target texture target.
651 * \param level image level.
652 *
653 * \return pointer to the texture image structure, or NULL on failure.
654 */
655 struct gl_texture_image *
656 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
657 GLenum target, GLint level)
658 {
659 const GLuint face = _mesa_tex_target_to_face(target);
660
661 ASSERT(texObj);
662 ASSERT(level >= 0);
663 ASSERT(level < MAX_TEXTURE_LEVELS);
664
665 return texObj->Image[face][level];
666 }
667
668
669 /**
670 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
671 * it and install it. Only return NULL if passed a bad parameter or run
672 * out of memory.
673 */
674 struct gl_texture_image *
675 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
676 GLenum target, GLint level)
677 {
678 struct gl_texture_image *texImage;
679
680 if (!texObj)
681 return NULL;
682
683 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
684 if (!texImage) {
685 texImage = ctx->Driver.NewTextureImage(ctx);
686 if (!texImage) {
687 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
688 return NULL;
689 }
690
691 _mesa_set_tex_image(texObj, target, level, texImage);
692 }
693
694 return texImage;
695 }
696
697
698 /**
699 * Return pointer to the specified proxy texture image.
700 * Note that proxy textures are per-context, not per-texture unit.
701 * \return pointer to texture image or NULL if invalid target, invalid
702 * level, or out of memory.
703 */
704 struct gl_texture_image *
705 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
706 {
707 struct gl_texture_image *texImage;
708 GLuint texIndex;
709
710 if (level < 0 )
711 return NULL;
712
713 switch (target) {
714 case GL_PROXY_TEXTURE_1D:
715 if (level >= ctx->Const.MaxTextureLevels)
716 return NULL;
717 texIndex = TEXTURE_1D_INDEX;
718 break;
719 case GL_PROXY_TEXTURE_2D:
720 if (level >= ctx->Const.MaxTextureLevels)
721 return NULL;
722 texIndex = TEXTURE_2D_INDEX;
723 break;
724 case GL_PROXY_TEXTURE_3D:
725 if (level >= ctx->Const.Max3DTextureLevels)
726 return NULL;
727 texIndex = TEXTURE_3D_INDEX;
728 break;
729 case GL_PROXY_TEXTURE_CUBE_MAP:
730 if (level >= ctx->Const.MaxCubeTextureLevels)
731 return NULL;
732 texIndex = TEXTURE_CUBE_INDEX;
733 break;
734 case GL_PROXY_TEXTURE_RECTANGLE_NV:
735 if (level > 0)
736 return NULL;
737 texIndex = TEXTURE_RECT_INDEX;
738 break;
739 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
740 if (level >= ctx->Const.MaxTextureLevels)
741 return NULL;
742 texIndex = TEXTURE_1D_ARRAY_INDEX;
743 break;
744 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
745 if (level >= ctx->Const.MaxTextureLevels)
746 return NULL;
747 texIndex = TEXTURE_2D_ARRAY_INDEX;
748 break;
749 default:
750 return NULL;
751 }
752
753 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
754 if (!texImage) {
755 texImage = ctx->Driver.NewTextureImage(ctx);
756 if (!texImage) {
757 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
758 return NULL;
759 }
760 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
761 /* Set the 'back' pointer */
762 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
763 }
764 return texImage;
765 }
766
767
768 /**
769 * Get the maximum number of allowed mipmap levels.
770 *
771 * \param ctx GL context.
772 * \param target texture target.
773 *
774 * \return the maximum number of allowed mipmap levels for the given
775 * texture target, or zero if passed a bad target.
776 *
777 * \sa gl_constants.
778 */
779 GLint
780 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
781 {
782 switch (target) {
783 case GL_TEXTURE_1D:
784 case GL_PROXY_TEXTURE_1D:
785 case GL_TEXTURE_2D:
786 case GL_PROXY_TEXTURE_2D:
787 return ctx->Const.MaxTextureLevels;
788 case GL_TEXTURE_3D:
789 case GL_PROXY_TEXTURE_3D:
790 return ctx->Const.Max3DTextureLevels;
791 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
792 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
793 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
794 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
795 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
796 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
797 case GL_TEXTURE_CUBE_MAP_ARB:
798 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
799 return ctx->Extensions.ARB_texture_cube_map
800 ? ctx->Const.MaxCubeTextureLevels : 0;
801 case GL_TEXTURE_RECTANGLE_NV:
802 case GL_PROXY_TEXTURE_RECTANGLE_NV:
803 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
804 case GL_TEXTURE_1D_ARRAY_EXT:
805 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
806 case GL_TEXTURE_2D_ARRAY_EXT:
807 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
808 return ctx->Extensions.MESA_texture_array
809 ? ctx->Const.MaxTextureLevels : 0;
810 default:
811 return 0; /* bad target */
812 }
813 }
814
815
816
817 #if 000 /* not used anymore */
818 /*
819 * glTexImage[123]D can accept a NULL image pointer. In this case we
820 * create a texture image with unspecified image contents per the OpenGL
821 * spec.
822 */
823 static GLubyte *
824 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
825 {
826 const GLint components = _mesa_components_in_format(format);
827 const GLint numPixels = width * height * depth;
828 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
829
830 #ifdef DEBUG
831 /*
832 * Let's see if anyone finds this. If glTexImage2D() is called with
833 * a NULL image pointer then load the texture image with something
834 * interesting instead of leaving it indeterminate.
835 */
836 if (data) {
837 static const char message[8][32] = {
838 " X X XXXXX XXX X ",
839 " XX XX X X X X X ",
840 " X X X X X X X ",
841 " X X XXXX XXX XXXXX ",
842 " X X X X X X ",
843 " X X X X X X X ",
844 " X X XXXXX XXX X X ",
845 " "
846 };
847
848 GLubyte *imgPtr = data;
849 GLint h, i, j, k;
850 for (h = 0; h < depth; h++) {
851 for (i = 0; i < height; i++) {
852 GLint srcRow = 7 - (i % 8);
853 for (j = 0; j < width; j++) {
854 GLint srcCol = j % 32;
855 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
856 for (k = 0; k < components; k++) {
857 *imgPtr++ = texel;
858 }
859 }
860 }
861 }
862 }
863 #endif
864
865 return data;
866 }
867 #endif
868
869
870
871 /**
872 * Reset the fields of a gl_texture_image struct to zero.
873 *
874 * \param img texture image structure.
875 *
876 * This is called when a proxy texture test fails, we set all the
877 * image members (except DriverData) to zero.
878 * It's also used in glTexImage[123]D as a safeguard to be sure all
879 * required fields get initialized properly by the Driver.TexImage[123]D
880 * functions.
881 */
882 static void
883 clear_teximage_fields(struct gl_texture_image *img)
884 {
885 ASSERT(img);
886 img->_BaseFormat = 0;
887 img->InternalFormat = 0;
888 img->Border = 0;
889 img->Width = 0;
890 img->Height = 0;
891 img->Depth = 0;
892 img->RowStride = 0;
893 if (img->ImageOffsets) {
894 _mesa_free(img->ImageOffsets);
895 img->ImageOffsets = NULL;
896 }
897 img->Width2 = 0;
898 img->Height2 = 0;
899 img->Depth2 = 0;
900 img->WidthLog2 = 0;
901 img->HeightLog2 = 0;
902 img->DepthLog2 = 0;
903 img->Data = NULL;
904 img->TexFormat = &_mesa_null_texformat;
905 img->FetchTexelc = NULL;
906 img->FetchTexelf = NULL;
907 img->IsCompressed = 0;
908 img->CompressedSize = 0;
909 }
910
911
912 /**
913 * Initialize basic fields of the gl_texture_image struct.
914 *
915 * \param ctx GL context.
916 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
917 * \param img texture image structure to be initialized.
918 * \param width image width.
919 * \param height image height.
920 * \param depth image depth.
921 * \param border image border.
922 * \param internalFormat internal format.
923 *
924 * Fills in the fields of \p img with the given information.
925 * Note: width, height and depth include the border.
926 */
927 void
928 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
929 struct gl_texture_image *img,
930 GLsizei width, GLsizei height, GLsizei depth,
931 GLint border, GLenum internalFormat)
932 {
933 GLint i;
934
935 ASSERT(img);
936 ASSERT(width >= 0);
937 ASSERT(height >= 0);
938 ASSERT(depth >= 0);
939
940 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
941 ASSERT(img->_BaseFormat > 0);
942 img->InternalFormat = internalFormat;
943 img->Border = border;
944 img->Width = width;
945 img->Height = height;
946 img->Depth = depth;
947
948 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
949 img->WidthLog2 = logbase2(img->Width2);
950
951 if (height == 1) { /* 1-D texture */
952 img->Height2 = 1;
953 img->HeightLog2 = 0;
954 }
955 else {
956 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
957 img->HeightLog2 = logbase2(img->Height2);
958 }
959
960 if (depth == 1) { /* 2-D texture */
961 img->Depth2 = 1;
962 img->DepthLog2 = 0;
963 }
964 else {
965 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
966 img->DepthLog2 = logbase2(img->Depth2);
967 }
968
969 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
970
971 img->IsCompressed = GL_FALSE;
972 img->CompressedSize = 0;
973
974 if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
975 (height == 1 || _mesa_is_pow_two(img->Height2)) &&
976 (depth == 1 || _mesa_is_pow_two(img->Depth2)))
977 img->_IsPowerOfTwo = GL_TRUE;
978 else
979 img->_IsPowerOfTwo = GL_FALSE;
980
981 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
982 img->RowStride = width;
983 /* Allocate the ImageOffsets array and initialize to typical values.
984 * We allocate the array for 1D/2D textures too in order to avoid special-
985 * case code in the texstore routines.
986 */
987 if (img->ImageOffsets)
988 _mesa_free(img->ImageOffsets);
989 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
990 for (i = 0; i < depth; i++) {
991 img->ImageOffsets[i] = i * width * height;
992 }
993
994 /* Compute Width/Height/DepthScale for mipmap lod computation */
995 if (target == GL_TEXTURE_RECTANGLE_NV) {
996 /* scale = 1.0 since texture coords directly map to texels */
997 img->WidthScale = 1.0;
998 img->HeightScale = 1.0;
999 img->DepthScale = 1.0;
1000 }
1001 else {
1002 img->WidthScale = (GLfloat) img->Width;
1003 img->HeightScale = (GLfloat) img->Height;
1004 img->DepthScale = (GLfloat) img->Depth;
1005 }
1006 }
1007
1008
1009 /**
1010 * Free and clear fields of the gl_texture_image struct.
1011 *
1012 * \param ctx GL context.
1013 * \param texImage texture image structure to be cleared.
1014 *
1015 * After the call, \p texImage will have no data associated with it. Its
1016 * fields are cleared so that its parent object will test incomplete.
1017 */
1018 void
1019 _mesa_clear_texture_image(GLcontext *ctx, struct gl_texture_image *texImage)
1020 {
1021 ctx->Driver.FreeTexImageData(ctx, texImage);
1022 clear_teximage_fields(texImage);
1023 }
1024
1025
1026 /**
1027 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1028 * level, width, height and depth against the ctx->Const limits for textures.
1029 *
1030 * A hardware driver might override this function if, for example, the
1031 * max 3D texture size is 512x512x64 (i.e. not a cube).
1032 *
1033 * Note that width, height, depth == 0 is not an error. However, a
1034 * texture with zero width/height/depth will be considered "incomplete"
1035 * and texturing will effectively be disabled.
1036 *
1037 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1038 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1039 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1040 * \param level as passed to glTexImage
1041 * \param internalFormat as passed to glTexImage
1042 * \param format as passed to glTexImage
1043 * \param type as passed to glTexImage
1044 * \param width as passed to glTexImage
1045 * \param height as passed to glTexImage
1046 * \param depth as passed to glTexImage
1047 * \param border as passed to glTexImage
1048 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1049 */
1050 GLboolean
1051 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1052 GLint internalFormat, GLenum format, GLenum type,
1053 GLint width, GLint height, GLint depth, GLint border)
1054 {
1055 GLint maxSize;
1056
1057 (void) internalFormat;
1058 (void) format;
1059 (void) type;
1060
1061 switch (target) {
1062 case GL_PROXY_TEXTURE_1D:
1063 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1064 if (width < 2 * border || width > 2 + maxSize ||
1065 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1066 width >0 && !_mesa_is_pow_two(width - 2 * border)) ||
1067 level >= ctx->Const.MaxTextureLevels) {
1068 /* bad width or level */
1069 return GL_FALSE;
1070 }
1071 return GL_TRUE;
1072 case GL_PROXY_TEXTURE_2D:
1073 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1074 if (width < 2 * border || width > 2 + maxSize ||
1075 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1076 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1077 height < 2 * border || height > 2 + maxSize ||
1078 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1079 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1080 level >= ctx->Const.MaxTextureLevels) {
1081 /* bad width or height or level */
1082 return GL_FALSE;
1083 }
1084 return GL_TRUE;
1085 case GL_PROXY_TEXTURE_3D:
1086 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1087 if (width < 2 * border || width > 2 + maxSize ||
1088 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1089 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1090 height < 2 * border || height > 2 + maxSize ||
1091 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1092 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1093 depth < 2 * border || depth > 2 + maxSize ||
1094 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1095 depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) ||
1096 level >= ctx->Const.Max3DTextureLevels) {
1097 /* bad width or height or depth or level */
1098 return GL_FALSE;
1099 }
1100 return GL_TRUE;
1101 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1102 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1103 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1104 level != 0) {
1105 /* bad width or height or level */
1106 return GL_FALSE;
1107 }
1108 return GL_TRUE;
1109 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1110 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1111 if (width < 2 * border || width > 2 + maxSize ||
1112 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1113 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1114 height < 2 * border || height > 2 + maxSize ||
1115 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1116 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1117 level >= ctx->Const.MaxCubeTextureLevels) {
1118 /* bad width or height */
1119 return GL_FALSE;
1120 }
1121 return GL_TRUE;
1122 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1123 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1124 if (width < 2 * border || width > 2 + maxSize ||
1125 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1126 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1127 level >= ctx->Const.MaxTextureLevels) {
1128 /* bad width or level */
1129 return GL_FALSE;
1130 }
1131
1132 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1133 return GL_FALSE;
1134 }
1135 return GL_TRUE;
1136 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1137 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1138 if (width < 2 * border || width > 2 + maxSize ||
1139 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1140 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1141 height < 2 * border || height > 2 + maxSize ||
1142 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1143 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1144 level >= ctx->Const.MaxTextureLevels) {
1145 /* bad width or height or level */
1146 return GL_FALSE;
1147 }
1148 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1149 return GL_FALSE;
1150 }
1151 return GL_TRUE;
1152 default:
1153 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1154 return GL_FALSE;
1155 }
1156 }
1157
1158
1159 /**
1160 * Helper function to determine whether a target supports compressed textures
1161 */
1162 static GLboolean
1163 target_can_be_compressed(GLcontext *ctx, GLenum target)
1164 {
1165 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1166 || ((ctx->Extensions.ARB_texture_cube_map &&
1167 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1168 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1169 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1170 || ((ctx->Extensions.MESA_texture_array &&
1171 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1172 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1173 }
1174
1175
1176 /**
1177 * Test the glTexImage[123]D() parameters for errors.
1178 *
1179 * \param ctx GL context.
1180 * \param target texture target given by the user.
1181 * \param level image level given by the user.
1182 * \param internalFormat internal format given by the user.
1183 * \param format pixel data format given by the user.
1184 * \param type pixel data type given by the user.
1185 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1186 * \param width image width given by the user.
1187 * \param height image height given by the user.
1188 * \param depth image depth given by the user.
1189 * \param border image border given by the user.
1190 *
1191 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1192 *
1193 * Verifies each of the parameters against the constants specified in
1194 * __GLcontextRec::Const and the supported extensions, and according to the
1195 * OpenGL specification.
1196 */
1197 static GLboolean
1198 texture_error_check( GLcontext *ctx, GLenum target,
1199 GLint level, GLint internalFormat,
1200 GLenum format, GLenum type,
1201 GLuint dimensions,
1202 GLint width, GLint height,
1203 GLint depth, GLint border )
1204 {
1205 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1206 GLboolean sizeOK = GL_TRUE;
1207 GLboolean colorFormat, indexFormat;
1208 GLenum proxy_target;
1209
1210 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1211 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1212 if (!isProxy) {
1213 _mesa_error(ctx, GL_INVALID_VALUE,
1214 "glTexImage%dD(level=%d)", dimensions, level);
1215 }
1216 return GL_TRUE;
1217 }
1218
1219 /* Check border */
1220 if (border < 0 || border > 1 ||
1221 ((target == GL_TEXTURE_RECTANGLE_NV ||
1222 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1223 if (!isProxy) {
1224 _mesa_error(ctx, GL_INVALID_VALUE,
1225 "glTexImage%dD(border=%d)", dimensions, border);
1226 }
1227 return GL_TRUE;
1228 }
1229
1230 if (width < 0 || height < 0 || depth < 0) {
1231 if (!isProxy) {
1232 _mesa_error(ctx, GL_INVALID_VALUE,
1233 "glTexImage%dD(width, height or depth < 0)", dimensions);
1234 }
1235 return GL_TRUE;
1236 }
1237
1238 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1239 * level, width, height and depth.
1240 */
1241 if (dimensions == 1) {
1242 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1243 proxy_target = GL_PROXY_TEXTURE_1D;
1244 height = 1;
1245 depth = 1;
1246 }
1247 else {
1248 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1249 return GL_TRUE;
1250 }
1251 }
1252 else if (dimensions == 2) {
1253 depth = 1;
1254 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1255 proxy_target = GL_PROXY_TEXTURE_2D;
1256 }
1257 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1258 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1259 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1260 if (!ctx->Extensions.ARB_texture_cube_map) {
1261 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1262 return GL_TRUE;
1263 }
1264 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1265 sizeOK = (width == height);
1266 }
1267 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1268 target == GL_TEXTURE_RECTANGLE_NV) {
1269 if (!ctx->Extensions.NV_texture_rectangle) {
1270 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1271 return GL_TRUE;
1272 }
1273 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1274 }
1275 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1276 target == GL_TEXTURE_1D_ARRAY_EXT) {
1277 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1278 }
1279 else {
1280 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1281 return GL_TRUE;
1282 }
1283 }
1284 else if (dimensions == 3) {
1285 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1286 proxy_target = GL_PROXY_TEXTURE_3D;
1287 }
1288 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1289 target == GL_TEXTURE_2D_ARRAY_EXT) {
1290 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1291 }
1292 else {
1293 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1294 return GL_TRUE;
1295 }
1296 }
1297 else {
1298 _mesa_problem( ctx, "bad dims in texture_error_check" );
1299 return GL_TRUE;
1300 }
1301
1302 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1303 internalFormat, format,
1304 type, width, height,
1305 depth, border);
1306 if (!sizeOK) {
1307 if (!isProxy) {
1308 _mesa_error(ctx, GL_INVALID_VALUE,
1309 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1310 dimensions, level, width, height, depth);
1311 }
1312 return GL_TRUE;
1313 }
1314
1315 /* Check internalFormat */
1316 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1317 if (!isProxy) {
1318 _mesa_error(ctx, GL_INVALID_VALUE,
1319 "glTexImage%dD(internalFormat=0x%x)",
1320 dimensions, internalFormat);
1321 }
1322 return GL_TRUE;
1323 }
1324
1325 /* Check incoming image format and type */
1326 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1327 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1328 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1329 */
1330 if (!isProxy) {
1331 _mesa_error(ctx, GL_INVALID_OPERATION,
1332 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1333 dimensions, format, type);
1334 }
1335 return GL_TRUE;
1336 }
1337
1338 /* make sure internal format and format basically agree */
1339 colorFormat = _mesa_is_color_format(format);
1340 indexFormat = _mesa_is_index_format(format);
1341 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1342 (_mesa_is_index_format(internalFormat) && !indexFormat) ||
1343 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1344 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1345 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1346 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1347 if (!isProxy)
1348 _mesa_error(ctx, GL_INVALID_OPERATION,
1349 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1350 dimensions, internalFormat, format);
1351 return GL_TRUE;
1352 }
1353
1354 /* additional checks for ycbcr textures */
1355 if (internalFormat == GL_YCBCR_MESA) {
1356 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1357 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1358 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1359 char message[100];
1360 _mesa_sprintf(message,
1361 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1362 _mesa_error(ctx, GL_INVALID_ENUM, message);
1363 return GL_TRUE; /* error */
1364 }
1365 if (target != GL_TEXTURE_2D &&
1366 target != GL_PROXY_TEXTURE_2D &&
1367 target != GL_TEXTURE_RECTANGLE_NV &&
1368 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1369 if (!isProxy)
1370 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1371 return GL_TRUE;
1372 }
1373 if (border != 0) {
1374 if (!isProxy) {
1375 char message[100];
1376 _mesa_sprintf(message,
1377 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1378 dimensions, border);
1379 _mesa_error(ctx, GL_INVALID_VALUE, message);
1380 }
1381 return GL_TRUE;
1382 }
1383 }
1384
1385 /* additional checks for depth textures */
1386 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1387 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1388 if (target != GL_TEXTURE_1D &&
1389 target != GL_PROXY_TEXTURE_1D &&
1390 target != GL_TEXTURE_2D &&
1391 target != GL_PROXY_TEXTURE_2D &&
1392 target != GL_TEXTURE_RECTANGLE_ARB &&
1393 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1394 if (!isProxy)
1395 _mesa_error(ctx, GL_INVALID_ENUM,
1396 "glTexImage(target/internalFormat)");
1397 return GL_TRUE;
1398 }
1399 }
1400
1401 /* additional checks for compressed textures */
1402 if (is_compressed_format(ctx, internalFormat)) {
1403 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1404 _mesa_error(ctx, GL_INVALID_ENUM,
1405 "glTexImage%d(target)", dimensions);
1406 return GL_TRUE;
1407 }
1408 if (border != 0) {
1409 if (!isProxy) {
1410 _mesa_error(ctx, GL_INVALID_OPERATION,
1411 "glTexImage%D(border!=0)", dimensions);
1412 }
1413 return GL_TRUE;
1414 }
1415 }
1416
1417 /* if we get here, the parameters are OK */
1418 return GL_FALSE;
1419 }
1420
1421
1422 /**
1423 * Test glTexSubImage[123]D() parameters for errors.
1424 *
1425 * \param ctx GL context.
1426 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1427 * \param target texture target given by the user.
1428 * \param level image level given by the user.
1429 * \param xoffset sub-image x offset given by the user.
1430 * \param yoffset sub-image y offset given by the user.
1431 * \param zoffset sub-image z offset given by the user.
1432 * \param format pixel data format given by the user.
1433 * \param type pixel data type given by the user.
1434 * \param width image width given by the user.
1435 * \param height image height given by the user.
1436 * \param depth image depth given by the user.
1437 *
1438 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1439 *
1440 * Verifies each of the parameters against the constants specified in
1441 * __GLcontextRec::Const and the supported extensions, and according to the
1442 * OpenGL specification.
1443 */
1444 static GLboolean
1445 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1446 GLenum target, GLint level,
1447 GLint xoffset, GLint yoffset, GLint zoffset,
1448 GLint width, GLint height, GLint depth,
1449 GLenum format, GLenum type )
1450 {
1451 /* Check target */
1452 if (dimensions == 1) {
1453 if (target != GL_TEXTURE_1D) {
1454 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1455 return GL_TRUE;
1456 }
1457 }
1458 else if (dimensions == 2) {
1459 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1460 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1461 if (!ctx->Extensions.ARB_texture_cube_map) {
1462 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1463 return GL_TRUE;
1464 }
1465 }
1466 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1467 if (!ctx->Extensions.NV_texture_rectangle) {
1468 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1469 return GL_TRUE;
1470 }
1471 }
1472 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1473 if (!ctx->Extensions.MESA_texture_array) {
1474 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1475 return GL_TRUE;
1476 }
1477 }
1478 else if (target != GL_TEXTURE_2D) {
1479 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1480 return GL_TRUE;
1481 }
1482 }
1483 else if (dimensions == 3) {
1484 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1485 if (!ctx->Extensions.MESA_texture_array) {
1486 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1487 return GL_TRUE;
1488 }
1489 }
1490 else if (target != GL_TEXTURE_3D) {
1491 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1492 return GL_TRUE;
1493 }
1494 }
1495 else {
1496 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1497 return GL_TRUE;
1498 }
1499
1500 /* Basic level check */
1501 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1502 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1503 return GL_TRUE;
1504 }
1505
1506 if (width < 0) {
1507 _mesa_error(ctx, GL_INVALID_VALUE,
1508 "glTexSubImage%dD(width=%d)", dimensions, width);
1509 return GL_TRUE;
1510 }
1511 if (height < 0 && dimensions > 1) {
1512 _mesa_error(ctx, GL_INVALID_VALUE,
1513 "glTexSubImage%dD(height=%d)", dimensions, height);
1514 return GL_TRUE;
1515 }
1516 if (depth < 0 && dimensions > 2) {
1517 _mesa_error(ctx, GL_INVALID_VALUE,
1518 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1519 return GL_TRUE;
1520 }
1521
1522 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1523 _mesa_error(ctx, GL_INVALID_ENUM,
1524 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1525 dimensions, format, type);
1526 return GL_TRUE;
1527 }
1528
1529 return GL_FALSE;
1530 }
1531
1532 static GLboolean
1533 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1534 GLenum target, GLint level,
1535 GLint xoffset, GLint yoffset, GLint zoffset,
1536 GLint width, GLint height, GLint depth,
1537 GLenum format, GLenum type,
1538 const struct gl_texture_image *destTex )
1539 {
1540 if (!destTex) {
1541 /* undefined image level */
1542 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1543 return GL_TRUE;
1544 }
1545
1546 if (xoffset < -((GLint)destTex->Border)) {
1547 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1548 dimensions);
1549 return GL_TRUE;
1550 }
1551 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1552 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1553 dimensions);
1554 return GL_TRUE;
1555 }
1556 if (dimensions > 1) {
1557 if (yoffset < -((GLint)destTex->Border)) {
1558 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1559 dimensions);
1560 return GL_TRUE;
1561 }
1562 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1563 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1564 dimensions);
1565 return GL_TRUE;
1566 }
1567 }
1568 if (dimensions > 2) {
1569 if (zoffset < -((GLint)destTex->Border)) {
1570 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1571 return GL_TRUE;
1572 }
1573 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1574 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1575 return GL_TRUE;
1576 }
1577 }
1578
1579 #if FEATURE_EXT_texture_sRGB
1580 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1581 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1582 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1583 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1584 if ((width & 0x3) || (height & 0x3) ||
1585 (xoffset & 0x3) || (yoffset & 0x3))
1586 _mesa_error(ctx, GL_INVALID_OPERATION,
1587 "glTexSubImage%dD(size or offset not multiple of 4)",
1588 dimensions);
1589 return GL_TRUE;
1590 }
1591 #endif
1592
1593 if (destTex->IsCompressed) {
1594 if (!target_can_be_compressed(ctx, target)) {
1595 _mesa_error(ctx, GL_INVALID_ENUM,
1596 "glTexSubImage%D(target)", dimensions);
1597 return GL_TRUE;
1598 }
1599 /* offset must be multiple of 4 */
1600 if ((xoffset & 3) || (yoffset & 3)) {
1601 _mesa_error(ctx, GL_INVALID_OPERATION,
1602 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1603 return GL_TRUE;
1604 }
1605 /* size must be multiple of 4 or equal to whole texture size */
1606 if ((width & 3) && (GLuint) width != destTex->Width) {
1607 _mesa_error(ctx, GL_INVALID_OPERATION,
1608 "glTexSubImage%D(width)", dimensions);
1609 return GL_TRUE;
1610 }
1611 if ((height & 3) && (GLuint) height != destTex->Height) {
1612 _mesa_error(ctx, GL_INVALID_OPERATION,
1613 "glTexSubImage%D(width)", dimensions);
1614 return GL_TRUE;
1615 }
1616 }
1617
1618 return GL_FALSE;
1619 }
1620
1621
1622 /**
1623 * Test glCopyTexImage[12]D() parameters for errors.
1624 *
1625 * \param ctx GL context.
1626 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1627 * \param target texture target given by the user.
1628 * \param level image level given by the user.
1629 * \param internalFormat internal format given by the user.
1630 * \param width image width given by the user.
1631 * \param height image height given by the user.
1632 * \param border texture border.
1633 *
1634 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1635 *
1636 * Verifies each of the parameters against the constants specified in
1637 * __GLcontextRec::Const and the supported extensions, and according to the
1638 * OpenGL specification.
1639 */
1640 static GLboolean
1641 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1642 GLenum target, GLint level, GLint internalFormat,
1643 GLint width, GLint height, GLint border )
1644 {
1645 GLenum type;
1646 GLboolean sizeOK;
1647 GLint format;
1648
1649 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1650 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1651 _mesa_error(ctx, GL_INVALID_VALUE,
1652 "glCopyTexImage%dD(level=%d)", dimensions, level);
1653 return GL_TRUE;
1654 }
1655
1656 /* Check that the source buffer is complete */
1657 if (ctx->ReadBuffer->Name) {
1658 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1659 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1660 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1661 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1662 return GL_TRUE;
1663 }
1664 }
1665
1666 /* Check border */
1667 if (border < 0 || border > 1 ||
1668 ((target == GL_TEXTURE_RECTANGLE_NV ||
1669 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1670 return GL_TRUE;
1671 }
1672
1673 format = _mesa_base_tex_format(ctx, internalFormat);
1674 if (format < 0) {
1675 _mesa_error(ctx, GL_INVALID_VALUE,
1676 "glCopyTexImage%dD(internalFormat)", dimensions);
1677 return GL_TRUE;
1678 }
1679
1680 if (!_mesa_source_buffer_exists(ctx, format)) {
1681 _mesa_error(ctx, GL_INVALID_OPERATION,
1682 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1683 return GL_TRUE;
1684 }
1685
1686 /* NOTE: the format and type aren't really significant for
1687 * TestProxyTexImage(). Only the internalformat really matters.
1688 */
1689 type = GL_FLOAT;
1690
1691 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1692 * level, width, height and depth.
1693 */
1694 if (dimensions == 1) {
1695 if (target == GL_TEXTURE_1D) {
1696 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1697 level, internalFormat,
1698 format, type,
1699 width, 1, 1, border);
1700 }
1701 else {
1702 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1703 return GL_TRUE;
1704 }
1705 }
1706 else if (dimensions == 2) {
1707 if (target == GL_TEXTURE_2D) {
1708 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1709 level, internalFormat,
1710 format, type,
1711 width, height, 1, border);
1712 }
1713 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1714 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1715 if (!ctx->Extensions.ARB_texture_cube_map) {
1716 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1717 return GL_TRUE;
1718 }
1719 sizeOK = (width == height) &&
1720 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1721 level, internalFormat, format, type,
1722 width, height, 1, border);
1723 }
1724 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1725 if (!ctx->Extensions.NV_texture_rectangle) {
1726 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1727 return GL_TRUE;
1728 }
1729 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1730 GL_PROXY_TEXTURE_RECTANGLE_NV,
1731 level, internalFormat,
1732 format, type,
1733 width, height, 1, border);
1734 }
1735 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1736 if (!ctx->Extensions.MESA_texture_array) {
1737 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1738 return GL_TRUE;
1739 }
1740 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1741 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1742 level, internalFormat,
1743 format, type,
1744 width, height, 1, border);
1745 }
1746 else {
1747 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1748 return GL_TRUE;
1749 }
1750 }
1751 else {
1752 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1753 return GL_TRUE;
1754 }
1755
1756 if (!sizeOK) {
1757 if (dimensions == 1) {
1758 _mesa_error(ctx, GL_INVALID_VALUE,
1759 "glCopyTexImage1D(width=%d)", width);
1760 }
1761 else {
1762 ASSERT(dimensions == 2);
1763 _mesa_error(ctx, GL_INVALID_VALUE,
1764 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1765 }
1766 return GL_TRUE;
1767 }
1768
1769 if (is_compressed_format(ctx, internalFormat)) {
1770 if (!target_can_be_compressed(ctx, target)) {
1771 _mesa_error(ctx, GL_INVALID_ENUM,
1772 "glCopyTexImage%d(target)", dimensions);
1773 return GL_TRUE;
1774 }
1775 if (border != 0) {
1776 _mesa_error(ctx, GL_INVALID_OPERATION,
1777 "glCopyTexImage%D(border!=0)", dimensions);
1778 return GL_TRUE;
1779 }
1780 }
1781 else if (_mesa_is_depth_format(internalFormat)) {
1782 /* make sure we have depth/stencil buffers */
1783 if (!ctx->ReadBuffer->_DepthBuffer) {
1784 _mesa_error(ctx, GL_INVALID_OPERATION,
1785 "glCopyTexImage%D(no depth)", dimensions);
1786 return GL_TRUE;
1787 }
1788 }
1789 else if (_mesa_is_depthstencil_format(internalFormat)) {
1790 /* make sure we have depth/stencil buffers */
1791 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
1792 _mesa_error(ctx, GL_INVALID_OPERATION,
1793 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
1794 return GL_TRUE;
1795 }
1796 }
1797
1798 /* if we get here, the parameters are OK */
1799 return GL_FALSE;
1800 }
1801
1802
1803 /**
1804 * Test glCopyTexSubImage[12]D() parameters for errors.
1805 * Note that this is the first part of error checking.
1806 * See also copytexsubimage_error_check2() below for the second part.
1807 *
1808 * \param ctx GL context.
1809 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1810 * \param target texture target given by the user.
1811 * \param level image level given by the user.
1812 *
1813 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1814 */
1815 static GLboolean
1816 copytexsubimage_error_check1( GLcontext *ctx, GLuint dimensions,
1817 GLenum target, GLint level)
1818 {
1819 /* Check that the source buffer is complete */
1820 if (ctx->ReadBuffer->Name) {
1821 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1822 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1823 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1824 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1825 return GL_TRUE;
1826 }
1827 }
1828
1829 /* Check target */
1830 if (dimensions == 1) {
1831 if (target != GL_TEXTURE_1D) {
1832 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
1833 return GL_TRUE;
1834 }
1835 }
1836 else if (dimensions == 2) {
1837 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1838 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1839 if (!ctx->Extensions.ARB_texture_cube_map) {
1840 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1841 return GL_TRUE;
1842 }
1843 }
1844 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1845 if (!ctx->Extensions.NV_texture_rectangle) {
1846 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1847 return GL_TRUE;
1848 }
1849 }
1850 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1851 if (!ctx->Extensions.MESA_texture_array) {
1852 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1853 return GL_TRUE;
1854 }
1855 }
1856 else if (target != GL_TEXTURE_2D) {
1857 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1858 return GL_TRUE;
1859 }
1860 }
1861 else if (dimensions == 3) {
1862 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
1863 (!ctx->Extensions.MESA_texture_array))
1864 && (target != GL_TEXTURE_3D)) {
1865 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
1866 return GL_TRUE;
1867 }
1868 }
1869
1870 /* Check level */
1871 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1872 _mesa_error(ctx, GL_INVALID_VALUE,
1873 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1874 return GL_TRUE;
1875 }
1876
1877 return GL_FALSE;
1878 }
1879
1880
1881 /**
1882 * Second part of error checking for glCopyTexSubImage[12]D().
1883 * \param xoffset sub-image x offset given by the user.
1884 * \param yoffset sub-image y offset given by the user.
1885 * \param zoffset sub-image z offset given by the user.
1886 * \param width image width given by the user.
1887 * \param height image height given by the user.
1888 */
1889 static GLboolean
1890 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
1891 GLenum target, GLint level,
1892 GLint xoffset, GLint yoffset, GLint zoffset,
1893 GLsizei width, GLsizei height,
1894 const struct gl_texture_image *teximage )
1895 {
1896 /* check that dest tex image exists */
1897 if (!teximage) {
1898 _mesa_error(ctx, GL_INVALID_OPERATION,
1899 "glCopyTexSubImage%dD(undefined texture level: %d)",
1900 dimensions, level);
1901 return GL_TRUE;
1902 }
1903
1904 /* Check size */
1905 if (width < 0) {
1906 _mesa_error(ctx, GL_INVALID_VALUE,
1907 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1908 return GL_TRUE;
1909 }
1910 if (dimensions > 1 && height < 0) {
1911 _mesa_error(ctx, GL_INVALID_VALUE,
1912 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1913 return GL_TRUE;
1914 }
1915
1916 /* check x/y offsets */
1917 if (xoffset < -((GLint)teximage->Border)) {
1918 _mesa_error(ctx, GL_INVALID_VALUE,
1919 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
1920 return GL_TRUE;
1921 }
1922 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
1923 _mesa_error(ctx, GL_INVALID_VALUE,
1924 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1925 return GL_TRUE;
1926 }
1927 if (dimensions > 1) {
1928 if (yoffset < -((GLint)teximage->Border)) {
1929 _mesa_error(ctx, GL_INVALID_VALUE,
1930 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
1931 return GL_TRUE;
1932 }
1933 /* NOTE: we're adding the border here, not subtracting! */
1934 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
1935 _mesa_error(ctx, GL_INVALID_VALUE,
1936 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1937 return GL_TRUE;
1938 }
1939 }
1940
1941 /* check z offset */
1942 if (dimensions > 2) {
1943 if (zoffset < -((GLint)teximage->Border)) {
1944 _mesa_error(ctx, GL_INVALID_VALUE,
1945 "glCopyTexSubImage%dD(zoffset)", dimensions);
1946 return GL_TRUE;
1947 }
1948 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
1949 _mesa_error(ctx, GL_INVALID_VALUE,
1950 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1951 return GL_TRUE;
1952 }
1953 }
1954
1955 if (teximage->IsCompressed) {
1956 if (!target_can_be_compressed(ctx, target)) {
1957 _mesa_error(ctx, GL_INVALID_ENUM,
1958 "glCopyTexSubImage%d(target)", dimensions);
1959 return GL_TRUE;
1960 }
1961 /* offset must be multiple of 4 */
1962 if ((xoffset & 3) || (yoffset & 3)) {
1963 _mesa_error(ctx, GL_INVALID_VALUE,
1964 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
1965 return GL_TRUE;
1966 }
1967 /* size must be multiple of 4 */
1968 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
1969 _mesa_error(ctx, GL_INVALID_VALUE,
1970 "glCopyTexSubImage%D(width)", dimensions);
1971 return GL_TRUE;
1972 }
1973 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
1974 _mesa_error(ctx, GL_INVALID_VALUE,
1975 "glCopyTexSubImage%D(height)", dimensions);
1976 return GL_TRUE;
1977 }
1978 }
1979
1980 if (teximage->InternalFormat == GL_YCBCR_MESA) {
1981 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
1982 return GL_TRUE;
1983 }
1984
1985 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
1986 _mesa_error(ctx, GL_INVALID_OPERATION,
1987 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
1988 dimensions, teximage->_BaseFormat);
1989 return GL_TRUE;
1990 }
1991
1992 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
1993 if (!ctx->ReadBuffer->_DepthBuffer) {
1994 _mesa_error(ctx, GL_INVALID_OPERATION,
1995 "glCopyTexSubImage%D(no depth buffer)",
1996 dimensions);
1997 return GL_TRUE;
1998 }
1999 }
2000 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2001 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2002 _mesa_error(ctx, GL_INVALID_OPERATION,
2003 "glCopyTexSubImage%D(no depth/stencil buffer)",
2004 dimensions);
2005 return GL_TRUE;
2006 }
2007 }
2008
2009 /* if we get here, the parameters are OK */
2010 return GL_FALSE;
2011 }
2012
2013
2014 /** Callback info for walking over FBO hash table */
2015 struct cb_info
2016 {
2017 GLcontext *ctx;
2018 struct gl_texture_object *texObj;
2019 GLuint level, face;
2020 };
2021
2022
2023 /**
2024 * Check render to texture callback. Called from _mesa_HashWalk().
2025 */
2026 static void
2027 check_rtt_cb(GLuint key, void *data, void *userData)
2028 {
2029 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2030 const struct cb_info *info = (struct cb_info *) userData;
2031 GLcontext *ctx = info->ctx;
2032 const struct gl_texture_object *texObj = info->texObj;
2033 const GLuint level = info->level, face = info->face;
2034
2035 /* If this is a user-created FBO */
2036 if (fb->Name) {
2037 GLuint i;
2038 /* check if any of the FBO's attachments point to 'texObj' */
2039 for (i = 0; i < BUFFER_COUNT; i++) {
2040 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2041 if (att->Type == GL_TEXTURE &&
2042 att->Texture == texObj &&
2043 att->TextureLevel == level &&
2044 att->CubeMapFace == face) {
2045 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2046 /* Tell driver about the new renderbuffer texture */
2047 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2048 /* Mark fb status as indeterminate to force re-validation */
2049 fb->_Status = 0;
2050 }
2051 }
2052 }
2053 }
2054
2055
2056 /**
2057 * When a texture image is specified we have to check if it's bound to
2058 * any framebuffer objects (render to texture) in order to detect changes
2059 * in size or format since that effects FBO completeness.
2060 * Any FBOs rendering into the texture must be re-validated.
2061 */
2062 static void
2063 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2064 GLuint face, GLuint level)
2065 {
2066 /* Only check this texture if it's been marked as RenderToTexture */
2067 if (texObj->_RenderToTexture) {
2068 struct cb_info info;
2069 info.ctx = ctx;
2070 info.texObj = texObj;
2071 info.level = level;
2072 info.face = face;
2073 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2074 }
2075 }
2076
2077
2078 /** Debug helper: override the user-requested internal format */
2079 static GLenum
2080 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2081 {
2082 #if 0
2083 if (internalFormat == GL_RGBA16F_ARB ||
2084 internalFormat == GL_RGBA32F_ARB) {
2085 printf("Convert rgba float tex to int %d x %d\n", width, height);
2086 return GL_RGBA;
2087 }
2088 else if (internalFormat == GL_RGB16F_ARB ||
2089 internalFormat == GL_RGB32F_ARB) {
2090 printf("Convert rgb float tex to int %d x %d\n", width, height);
2091 return GL_RGB;
2092 }
2093 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2094 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2095 printf("Convert luminance float tex to int %d x %d\n", width, height);
2096 return GL_LUMINANCE_ALPHA;
2097 }
2098 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2099 internalFormat == GL_LUMINANCE32F_ARB) {
2100 printf("Convert luminance float tex to int %d x %d\n", width, height);
2101 return GL_LUMINANCE;
2102 }
2103 else if (internalFormat == GL_ALPHA16F_ARB ||
2104 internalFormat == GL_ALPHA32F_ARB) {
2105 printf("Convert luminance float tex to int %d x %d\n", width, height);
2106 return GL_ALPHA;
2107 }
2108 /*
2109 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2110 internalFormat = GL_RGBA;
2111 }
2112 */
2113 else {
2114 return internalFormat;
2115 }
2116 #else
2117 return internalFormat;
2118 #endif
2119 }
2120
2121
2122 /*
2123 * Called from the API. Note that width includes the border.
2124 */
2125 void GLAPIENTRY
2126 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2127 GLsizei width, GLint border, GLenum format,
2128 GLenum type, const GLvoid *pixels )
2129 {
2130 GLsizei postConvWidth = width;
2131 GET_CURRENT_CONTEXT(ctx);
2132 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2133
2134 internalFormat = override_internal_format(internalFormat, width, 1);
2135
2136 #if FEATURE_convolve
2137 if (_mesa_is_color_format(internalFormat)) {
2138 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2139 }
2140 #endif
2141
2142 if (target == GL_TEXTURE_1D) {
2143 /* non-proxy target */
2144 struct gl_texture_unit *texUnit;
2145 struct gl_texture_object *texObj;
2146 struct gl_texture_image *texImage;
2147 const GLuint face = _mesa_tex_target_to_face(target);
2148
2149 if (texture_error_check(ctx, target, level, internalFormat,
2150 format, type, 1, postConvWidth, 1, 1, border)) {
2151 return; /* error was recorded */
2152 }
2153
2154 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2155 _mesa_update_state(ctx);
2156
2157 texUnit = _mesa_get_current_tex_unit(ctx);
2158 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2159 _mesa_lock_texture(ctx, texObj);
2160 {
2161 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2162 if (!texImage) {
2163 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2164 }
2165 else {
2166 if (texImage->Data) {
2167 ctx->Driver.FreeTexImageData( ctx, texImage );
2168 }
2169
2170 ASSERT(texImage->Data == NULL);
2171
2172 clear_teximage_fields(texImage); /* not really needed, but helpful */
2173 _mesa_init_teximage_fields(ctx, target, texImage,
2174 postConvWidth, 1, 1,
2175 border, internalFormat);
2176
2177 /* Give the texture to the driver. <pixels> may be null. */
2178 ASSERT(ctx->Driver.TexImage1D);
2179 ctx->Driver.TexImage1D(ctx, target, level, internalFormat,
2180 width, border, format, type, pixels,
2181 &ctx->Unpack, texObj, texImage);
2182
2183 ASSERT(texImage->TexFormat);
2184
2185 update_fbo_texture(ctx, texObj, face, level);
2186
2187 /* state update */
2188 texObj->_Complete = GL_FALSE;
2189 ctx->NewState |= _NEW_TEXTURE;
2190 }
2191 }
2192 _mesa_unlock_texture(ctx, texObj);
2193 }
2194 else if (target == GL_PROXY_TEXTURE_1D) {
2195 /* Proxy texture: check for errors and update proxy state */
2196 struct gl_texture_image *texImage;
2197 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2198 if (texture_error_check(ctx, target, level, internalFormat,
2199 format, type, 1, postConvWidth, 1, 1, border)) {
2200 /* when error, clear all proxy texture image parameters */
2201 if (texImage)
2202 clear_teximage_fields(texImage);
2203 }
2204 else {
2205 /* no error, set the tex image parameters */
2206 ASSERT(texImage);
2207 _mesa_init_teximage_fields(ctx, target, texImage,
2208 postConvWidth, 1, 1,
2209 border, internalFormat);
2210 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2211 internalFormat, format, type);
2212 }
2213 }
2214 else {
2215 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2216 return;
2217 }
2218 }
2219
2220
2221 void GLAPIENTRY
2222 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2223 GLsizei width, GLsizei height, GLint border,
2224 GLenum format, GLenum type,
2225 const GLvoid *pixels )
2226 {
2227 GLsizei postConvWidth = width, postConvHeight = height;
2228 GET_CURRENT_CONTEXT(ctx);
2229 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2230
2231 internalFormat = override_internal_format(internalFormat, width, height);
2232
2233 #if FEATURE_convolve
2234 if (_mesa_is_color_format(internalFormat)) {
2235 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2236 &postConvHeight);
2237 }
2238 #endif
2239
2240 if (target == GL_TEXTURE_2D ||
2241 (ctx->Extensions.ARB_texture_cube_map &&
2242 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2243 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2244 (ctx->Extensions.NV_texture_rectangle &&
2245 target == GL_TEXTURE_RECTANGLE_NV) ||
2246 (ctx->Extensions.MESA_texture_array &&
2247 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2248 /* non-proxy target */
2249 struct gl_texture_unit *texUnit;
2250 struct gl_texture_object *texObj;
2251 struct gl_texture_image *texImage;
2252 const GLuint face = _mesa_tex_target_to_face(target);
2253
2254 if (texture_error_check(ctx, target, level, internalFormat,
2255 format, type, 2, postConvWidth, postConvHeight,
2256 1, border)) {
2257 return; /* error was recorded */
2258 }
2259
2260 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2261 _mesa_update_state(ctx);
2262
2263 texUnit = _mesa_get_current_tex_unit(ctx);
2264 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2265 _mesa_lock_texture(ctx, texObj);
2266 {
2267 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2268 if (!texImage) {
2269 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2270 }
2271 else {
2272 if (texImage->Data) {
2273 ctx->Driver.FreeTexImageData( ctx, texImage );
2274 }
2275
2276 ASSERT(texImage->Data == NULL);
2277 clear_teximage_fields(texImage); /* not really needed, but helpful */
2278 _mesa_init_teximage_fields(ctx, target, texImage,
2279 postConvWidth, postConvHeight, 1,
2280 border, internalFormat);
2281
2282 /* Give the texture to the driver. <pixels> may be null. */
2283 ASSERT(ctx->Driver.TexImage2D);
2284 ctx->Driver.TexImage2D(ctx, target, level, internalFormat,
2285 width, height, border, format, type,
2286 pixels, &ctx->Unpack, texObj, texImage);
2287
2288 ASSERT(texImage->TexFormat);
2289
2290 update_fbo_texture(ctx, texObj, face, level);
2291
2292 /* state update */
2293 texObj->_Complete = GL_FALSE;
2294 ctx->NewState |= _NEW_TEXTURE;
2295 }
2296 }
2297 _mesa_unlock_texture(ctx, texObj);
2298 }
2299 else if (target == GL_PROXY_TEXTURE_2D ||
2300 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2301 ctx->Extensions.ARB_texture_cube_map) ||
2302 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2303 ctx->Extensions.NV_texture_rectangle) ||
2304 (ctx->Extensions.MESA_texture_array &&
2305 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2306 /* Proxy texture: check for errors and update proxy state */
2307 struct gl_texture_image *texImage;
2308 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2309 if (texture_error_check(ctx, target, level, internalFormat,
2310 format, type, 2, postConvWidth, postConvHeight,
2311 1, border)) {
2312 /* when error, clear all proxy texture image parameters */
2313 if (texImage)
2314 clear_teximage_fields(texImage);
2315 }
2316 else {
2317 /* no error, set the tex image parameters */
2318 _mesa_init_teximage_fields(ctx, target, texImage,
2319 postConvWidth, postConvHeight, 1,
2320 border, internalFormat);
2321 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2322 internalFormat, format, type);
2323 }
2324 }
2325 else {
2326 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2327 return;
2328 }
2329 }
2330
2331
2332 /*
2333 * Called by the API or display list executor.
2334 * Note that width and height include the border.
2335 */
2336 void GLAPIENTRY
2337 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2338 GLsizei width, GLsizei height, GLsizei depth,
2339 GLint border, GLenum format, GLenum type,
2340 const GLvoid *pixels )
2341 {
2342 GET_CURRENT_CONTEXT(ctx);
2343 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2344
2345 internalFormat = override_internal_format(internalFormat, width, height);
2346
2347 if (target == GL_TEXTURE_3D ||
2348 (ctx->Extensions.MESA_texture_array &&
2349 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2350 /* non-proxy target */
2351 struct gl_texture_unit *texUnit;
2352 struct gl_texture_object *texObj;
2353 struct gl_texture_image *texImage;
2354 const GLuint face = _mesa_tex_target_to_face(target);
2355
2356 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2357 format, type, 3, width, height, depth, border)) {
2358 return; /* error was recorded */
2359 }
2360
2361 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2362 _mesa_update_state(ctx);
2363
2364 texUnit = _mesa_get_current_tex_unit(ctx);
2365 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2366 _mesa_lock_texture(ctx, texObj);
2367 {
2368 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2369 if (!texImage) {
2370 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2371 }
2372 else {
2373 if (texImage->Data) {
2374 ctx->Driver.FreeTexImageData( ctx, texImage );
2375 }
2376
2377 ASSERT(texImage->Data == NULL);
2378 clear_teximage_fields(texImage); /* not really needed, but helpful */
2379 _mesa_init_teximage_fields(ctx, target, texImage,
2380 width, height, depth,
2381 border, internalFormat);
2382
2383 /* Give the texture to the driver. <pixels> may be null. */
2384 ASSERT(ctx->Driver.TexImage3D);
2385 ctx->Driver.TexImage3D(ctx, target, level, internalFormat,
2386 width, height, depth, border, format, type,
2387 pixels, &ctx->Unpack, texObj, texImage);
2388
2389 ASSERT(texImage->TexFormat);
2390
2391 update_fbo_texture(ctx, texObj, face, level);
2392
2393 /* state update */
2394 texObj->_Complete = GL_FALSE;
2395 ctx->NewState |= _NEW_TEXTURE;
2396 }
2397 }
2398 _mesa_unlock_texture(ctx, texObj);
2399 }
2400 else if (target == GL_PROXY_TEXTURE_3D ||
2401 (ctx->Extensions.MESA_texture_array &&
2402 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2403 /* Proxy texture: check for errors and update proxy state */
2404 struct gl_texture_image *texImage;
2405 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2406 if (texture_error_check(ctx, target, level, internalFormat,
2407 format, type, 3, width, height, depth, border)) {
2408 /* when error, clear all proxy texture image parameters */
2409 if (texImage)
2410 clear_teximage_fields(texImage);
2411 }
2412 else {
2413 /* no error, set the tex image parameters */
2414 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2415 depth, border, internalFormat);
2416 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2417 internalFormat, format, type);
2418 }
2419 }
2420 else {
2421 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2422 return;
2423 }
2424 }
2425
2426
2427 void GLAPIENTRY
2428 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2429 GLsizei width, GLsizei height, GLsizei depth,
2430 GLint border, GLenum format, GLenum type,
2431 const GLvoid *pixels )
2432 {
2433 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2434 depth, border, format, type, pixels);
2435 }
2436
2437
2438
2439 void GLAPIENTRY
2440 _mesa_TexSubImage1D( GLenum target, GLint level,
2441 GLint xoffset, GLsizei width,
2442 GLenum format, GLenum type,
2443 const GLvoid *pixels )
2444 {
2445 GLsizei postConvWidth = width;
2446 struct gl_texture_unit *texUnit;
2447 struct gl_texture_object *texObj;
2448 struct gl_texture_image *texImage = NULL;
2449 GET_CURRENT_CONTEXT(ctx);
2450 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2451
2452 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2453 _mesa_update_state(ctx);
2454
2455 #if FEATURE_convolve
2456 /* XXX should test internal format */
2457 if (_mesa_is_color_format(format)) {
2458 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2459 }
2460 #endif
2461
2462 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2463 postConvWidth, 1, 1, format, type)) {
2464 return; /* error was detected */
2465 }
2466
2467
2468 texUnit = _mesa_get_current_tex_unit(ctx);
2469 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2470 assert(texObj);
2471
2472 _mesa_lock_texture(ctx, texObj);
2473 {
2474 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2475
2476 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2477 postConvWidth, 1, 1,
2478 format, type, texImage)) {
2479 /* error was recorded */
2480 }
2481 else if (width > 0) {
2482 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2483 xoffset += texImage->Border;
2484
2485 ASSERT(ctx->Driver.TexSubImage1D);
2486 ctx->Driver.TexSubImage1D(ctx, target, level, xoffset, width,
2487 format, type, pixels, &ctx->Unpack,
2488 texObj, texImage);
2489 ctx->NewState |= _NEW_TEXTURE;
2490 }
2491 }
2492 _mesa_unlock_texture(ctx, texObj);
2493 }
2494
2495
2496 void GLAPIENTRY
2497 _mesa_TexSubImage2D( GLenum target, GLint level,
2498 GLint xoffset, GLint yoffset,
2499 GLsizei width, GLsizei height,
2500 GLenum format, GLenum type,
2501 const GLvoid *pixels )
2502 {
2503 GLsizei postConvWidth = width, postConvHeight = height;
2504 struct gl_texture_unit *texUnit;
2505 struct gl_texture_object *texObj;
2506 struct gl_texture_image *texImage;
2507 GET_CURRENT_CONTEXT(ctx);
2508 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2509
2510 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2511 _mesa_update_state(ctx);
2512
2513 #if FEATURE_convolve
2514 /* XXX should test internal format */
2515 if (_mesa_is_color_format(format)) {
2516 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2517 &postConvHeight);
2518 }
2519 #endif
2520
2521 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2522 postConvWidth, postConvHeight, 1, format, type)) {
2523 return; /* error was detected */
2524 }
2525
2526 texUnit = _mesa_get_current_tex_unit(ctx);
2527 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2528
2529 _mesa_lock_texture(ctx, texObj);
2530 {
2531 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2532
2533 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2534 postConvWidth, postConvHeight, 1,
2535 format, type, texImage)) {
2536 /* error was recorded */
2537 }
2538 else if (width > 0 && height >= 0) {
2539 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2540 xoffset += texImage->Border;
2541 yoffset += texImage->Border;
2542
2543 ASSERT(ctx->Driver.TexSubImage2D);
2544 ctx->Driver.TexSubImage2D(ctx, target, level, xoffset, yoffset,
2545 width, height, format, type, pixels,
2546 &ctx->Unpack, texObj, texImage);
2547 ctx->NewState |= _NEW_TEXTURE;
2548 }
2549 }
2550 _mesa_unlock_texture(ctx, texObj);
2551 }
2552
2553
2554
2555 void GLAPIENTRY
2556 _mesa_TexSubImage3D( GLenum target, GLint level,
2557 GLint xoffset, GLint yoffset, GLint zoffset,
2558 GLsizei width, GLsizei height, GLsizei depth,
2559 GLenum format, GLenum type,
2560 const GLvoid *pixels )
2561 {
2562 struct gl_texture_unit *texUnit;
2563 struct gl_texture_object *texObj;
2564 struct gl_texture_image *texImage;
2565 GET_CURRENT_CONTEXT(ctx);
2566 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2567
2568 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2569 _mesa_update_state(ctx);
2570
2571 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2572 width, height, depth, format, type)) {
2573 return; /* error was detected */
2574 }
2575
2576 texUnit = _mesa_get_current_tex_unit(ctx);
2577 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2578
2579 _mesa_lock_texture(ctx, texObj);
2580 {
2581 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2582
2583 if (subtexture_error_check2(ctx, 3, target, level,
2584 xoffset, yoffset, zoffset,
2585 width, height, depth,
2586 format, type, texImage)) {
2587 /* error was recorded */
2588 }
2589 else if (width > 0 && height > 0 && height > 0) {
2590 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2591 xoffset += texImage->Border;
2592 yoffset += texImage->Border;
2593 zoffset += texImage->Border;
2594
2595 ASSERT(ctx->Driver.TexSubImage3D);
2596 ctx->Driver.TexSubImage3D(ctx, target, level,
2597 xoffset, yoffset, zoffset,
2598 width, height, depth,
2599 format, type, pixels,
2600 &ctx->Unpack, texObj, texImage );
2601 ctx->NewState |= _NEW_TEXTURE;
2602 }
2603 }
2604 _mesa_unlock_texture(ctx, texObj);
2605 }
2606
2607
2608
2609 void GLAPIENTRY
2610 _mesa_CopyTexImage1D( GLenum target, GLint level,
2611 GLenum internalFormat,
2612 GLint x, GLint y,
2613 GLsizei width, GLint border )
2614 {
2615 struct gl_texture_unit *texUnit;
2616 struct gl_texture_object *texObj;
2617 struct gl_texture_image *texImage;
2618 GLsizei postConvWidth = width;
2619 const GLuint face = _mesa_tex_target_to_face(target);
2620 GET_CURRENT_CONTEXT(ctx);
2621 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2622
2623 if (ctx->NewState & NEW_COPY_TEX_STATE)
2624 _mesa_update_state(ctx);
2625
2626 #if FEATURE_convolve
2627 if (_mesa_is_color_format(internalFormat)) {
2628 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2629 }
2630 #endif
2631
2632 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2633 postConvWidth, 1, border))
2634 return;
2635
2636 texUnit = _mesa_get_current_tex_unit(ctx);
2637 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2638
2639 _mesa_lock_texture(ctx, texObj);
2640 {
2641 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2642 if (!texImage) {
2643 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2644 }
2645 else {
2646 if (texImage->Data) {
2647 ctx->Driver.FreeTexImageData( ctx, texImage );
2648 }
2649
2650 ASSERT(texImage->Data == NULL);
2651
2652 clear_teximage_fields(texImage); /* not really needed, but helpful */
2653 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2654 border, internalFormat);
2655
2656 ASSERT(ctx->Driver.CopyTexImage1D);
2657 ctx->Driver.CopyTexImage1D(ctx, target, level, internalFormat,
2658 x, y, width, border);
2659
2660 ASSERT(texImage->TexFormat);
2661
2662 update_fbo_texture(ctx, texObj, face, level);
2663
2664 /* state update */
2665 texObj->_Complete = GL_FALSE;
2666 ctx->NewState |= _NEW_TEXTURE;
2667 }
2668 }
2669 _mesa_unlock_texture(ctx, texObj);
2670 }
2671
2672
2673
2674 void GLAPIENTRY
2675 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2676 GLint x, GLint y, GLsizei width, GLsizei height,
2677 GLint border )
2678 {
2679 struct gl_texture_unit *texUnit;
2680 struct gl_texture_object *texObj;
2681 struct gl_texture_image *texImage;
2682 GLsizei postConvWidth = width, postConvHeight = height;
2683 const GLuint face = _mesa_tex_target_to_face(target);
2684 GET_CURRENT_CONTEXT(ctx);
2685 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2686
2687 if (ctx->NewState & NEW_COPY_TEX_STATE)
2688 _mesa_update_state(ctx);
2689
2690 #if FEATURE_convolve
2691 if (_mesa_is_color_format(internalFormat)) {
2692 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2693 &postConvHeight);
2694 }
2695 #endif
2696
2697 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2698 postConvWidth, postConvHeight, border))
2699 return;
2700
2701 texUnit = _mesa_get_current_tex_unit(ctx);
2702 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2703
2704 _mesa_lock_texture(ctx, texObj);
2705 {
2706 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2707
2708 if (!texImage) {
2709 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2710 }
2711 else {
2712 if (texImage->Data) {
2713 ctx->Driver.FreeTexImageData( ctx, texImage );
2714 }
2715
2716 ASSERT(texImage->Data == NULL);
2717
2718 clear_teximage_fields(texImage); /* not really needed, but helpful */
2719 _mesa_init_teximage_fields(ctx, target, texImage,
2720 postConvWidth, postConvHeight, 1,
2721 border, internalFormat);
2722
2723 ASSERT(ctx->Driver.CopyTexImage2D);
2724 ctx->Driver.CopyTexImage2D(ctx, target, level, internalFormat,
2725 x, y, width, height, border);
2726
2727 ASSERT(texImage->TexFormat);
2728
2729 update_fbo_texture(ctx, texObj, face, level);
2730
2731 /* state update */
2732 texObj->_Complete = GL_FALSE;
2733 ctx->NewState |= _NEW_TEXTURE;
2734 }
2735 }
2736 _mesa_unlock_texture(ctx, texObj);
2737 }
2738
2739
2740 void GLAPIENTRY
2741 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2742 GLint xoffset, GLint x, GLint y, GLsizei width )
2743 {
2744 struct gl_texture_unit *texUnit;
2745 struct gl_texture_object *texObj;
2746 struct gl_texture_image *texImage;
2747 GLsizei postConvWidth = width;
2748 GLint yoffset = 0;
2749 GLsizei height = 1;
2750
2751 GET_CURRENT_CONTEXT(ctx);
2752 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2753
2754 if (ctx->NewState & NEW_COPY_TEX_STATE)
2755 _mesa_update_state(ctx);
2756
2757 if (copytexsubimage_error_check1(ctx, 1, target, level))
2758 return;
2759
2760 texUnit = _mesa_get_current_tex_unit(ctx);
2761 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2762
2763 _mesa_lock_texture(ctx, texObj);
2764 {
2765 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2766
2767 #if FEATURE_convolve
2768 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2769 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2770 }
2771 #endif
2772
2773 if (copytexsubimage_error_check2(ctx, 1, target, level,
2774 xoffset, 0, 0, postConvWidth, 1,
2775 texImage)) {
2776 /* error was recorded */
2777 }
2778 else {
2779 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2780 xoffset += texImage->Border;
2781
2782 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2783 &width, &height)) {
2784 ASSERT(ctx->Driver.CopyTexSubImage1D);
2785 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
2786 xoffset, x, y, width);
2787 ctx->NewState |= _NEW_TEXTURE;
2788 }
2789 }
2790 }
2791 _mesa_unlock_texture(ctx, texObj);
2792 }
2793
2794
2795
2796 void GLAPIENTRY
2797 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2798 GLint xoffset, GLint yoffset,
2799 GLint x, GLint y, GLsizei width, GLsizei height )
2800 {
2801 struct gl_texture_unit *texUnit;
2802 struct gl_texture_object *texObj;
2803 struct gl_texture_image *texImage;
2804 GLsizei postConvWidth = width, postConvHeight = height;
2805 GET_CURRENT_CONTEXT(ctx);
2806 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2807
2808 if (ctx->NewState & NEW_COPY_TEX_STATE)
2809 _mesa_update_state(ctx);
2810
2811 if (copytexsubimage_error_check1(ctx, 2, target, level))
2812 return;
2813
2814 texUnit = _mesa_get_current_tex_unit(ctx);
2815 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2816
2817 _mesa_lock_texture(ctx, texObj);
2818 {
2819 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2820
2821 #if FEATURE_convolve
2822 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2823 _mesa_adjust_image_for_convolution(ctx, 2,
2824 &postConvWidth, &postConvHeight);
2825 }
2826 #endif
2827
2828 if (copytexsubimage_error_check2(ctx, 2, target, level,
2829 xoffset, yoffset, 0,
2830 postConvWidth, postConvHeight,
2831 texImage)) {
2832 /* error was recorded */
2833 }
2834 else {
2835 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2836 xoffset += texImage->Border;
2837 yoffset += texImage->Border;
2838
2839 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2840 &width, &height)) {
2841 ASSERT(ctx->Driver.CopyTexSubImage2D);
2842 ctx->Driver.CopyTexSubImage2D(ctx, target, level, xoffset, yoffset,
2843 x, y, width, height);
2844 ctx->NewState |= _NEW_TEXTURE;
2845 }
2846 }
2847 }
2848 _mesa_unlock_texture(ctx, texObj);
2849 }
2850
2851
2852
2853 void GLAPIENTRY
2854 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2855 GLint xoffset, GLint yoffset, GLint zoffset,
2856 GLint x, GLint y, GLsizei width, GLsizei height )
2857 {
2858 struct gl_texture_unit *texUnit;
2859 struct gl_texture_object *texObj;
2860 struct gl_texture_image *texImage;
2861 GLsizei postConvWidth = width, postConvHeight = height;
2862 GET_CURRENT_CONTEXT(ctx);
2863 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2864
2865 if (ctx->NewState & NEW_COPY_TEX_STATE)
2866 _mesa_update_state(ctx);
2867
2868 if (copytexsubimage_error_check1(ctx, 3, target, level))
2869 return;
2870
2871 texUnit = _mesa_get_current_tex_unit(ctx);
2872 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2873
2874 _mesa_lock_texture(ctx, texObj);
2875 {
2876 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2877
2878 #if FEATURE_convolve
2879 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2880 _mesa_adjust_image_for_convolution(ctx, 2,
2881 &postConvWidth, &postConvHeight);
2882 }
2883 #endif
2884
2885 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
2886 zoffset, postConvWidth, postConvHeight,
2887 texImage)) {
2888 /* error was recored */
2889 }
2890 else {
2891 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2892 xoffset += texImage->Border;
2893 yoffset += texImage->Border;
2894 zoffset += texImage->Border;
2895
2896 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2897 &width, &height)) {
2898 ASSERT(ctx->Driver.CopyTexSubImage3D);
2899 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
2900 xoffset, yoffset, zoffset,
2901 x, y, width, height);
2902 ctx->NewState |= _NEW_TEXTURE;
2903 }
2904 }
2905 }
2906 _mesa_unlock_texture(ctx, texObj);
2907 }
2908
2909
2910
2911
2912 /**********************************************************************/
2913 /****** Compressed Textures ******/
2914 /**********************************************************************/
2915
2916
2917 /**
2918 * Error checking for glCompressedTexImage[123]D().
2919 * \return error code or GL_NO_ERROR.
2920 */
2921 static GLenum
2922 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
2923 GLenum target, GLint level,
2924 GLenum internalFormat, GLsizei width,
2925 GLsizei height, GLsizei depth, GLint border,
2926 GLsizei imageSize)
2927 {
2928 GLint expectedSize, maxLevels = 0, maxTextureSize;
2929
2930 if (dimensions == 1) {
2931 /* 1D compressed textures not allowed */
2932 return GL_INVALID_ENUM;
2933 }
2934 else if (dimensions == 2) {
2935 if (target == GL_PROXY_TEXTURE_2D) {
2936 maxLevels = ctx->Const.MaxTextureLevels;
2937 }
2938 else if (target == GL_TEXTURE_2D) {
2939 maxLevels = ctx->Const.MaxTextureLevels;
2940 }
2941 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2942 if (!ctx->Extensions.ARB_texture_cube_map)
2943 return GL_INVALID_ENUM; /*target*/
2944 maxLevels = ctx->Const.MaxCubeTextureLevels;
2945 }
2946 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2947 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2948 if (!ctx->Extensions.ARB_texture_cube_map)
2949 return GL_INVALID_ENUM; /*target*/
2950 maxLevels = ctx->Const.MaxCubeTextureLevels;
2951 }
2952 else {
2953 return GL_INVALID_ENUM; /*target*/
2954 }
2955 }
2956 else if (dimensions == 3) {
2957 /* 3D compressed textures not allowed */
2958 return GL_INVALID_ENUM;
2959 }
2960
2961 maxTextureSize = 1 << (maxLevels - 1);
2962
2963 /* This will detect any invalid internalFormat value */
2964 if (!is_compressed_format(ctx, internalFormat))
2965 return GL_INVALID_ENUM;
2966
2967 /* This should really never fail */
2968 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
2969 return GL_INVALID_ENUM;
2970
2971 if (border != 0)
2972 return GL_INVALID_VALUE;
2973
2974 /*
2975 * XXX We should probably use the proxy texture error check function here.
2976 */
2977 if (width < 1 || width > maxTextureSize ||
2978 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(width)))
2979 return GL_INVALID_VALUE;
2980
2981 if ((height < 1 || height > maxTextureSize ||
2982 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(height)))
2983 && dimensions > 1)
2984 return GL_INVALID_VALUE;
2985
2986 if ((depth < 1 || depth > maxTextureSize ||
2987 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(depth)))
2988 && dimensions > 2)
2989 return GL_INVALID_VALUE;
2990
2991 /* For cube map, width must equal height */
2992 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2993 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
2994 return GL_INVALID_VALUE;
2995
2996 if (level < 0 || level >= maxLevels)
2997 return GL_INVALID_VALUE;
2998
2999 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3000 depth, internalFormat);
3001 if (expectedSize != imageSize)
3002 return GL_INVALID_VALUE;
3003
3004 #if FEATURE_EXT_texture_sRGB
3005 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3006 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3007 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3008 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3009 && border != 0) {
3010 return GL_INVALID_OPERATION;
3011 }
3012 #endif
3013
3014 return GL_NO_ERROR;
3015 }
3016
3017
3018 /**
3019 * Error checking for glCompressedTexSubImage[123]D().
3020 * \warning There are some bad assumptions here about the size of compressed
3021 * texture tiles (multiple of 4) used to test the validity of the
3022 * offset and size parameters.
3023 * \return error code or GL_NO_ERROR.
3024 */
3025 static GLenum
3026 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3027 GLenum target, GLint level,
3028 GLint xoffset, GLint yoffset, GLint zoffset,
3029 GLsizei width, GLsizei height, GLsizei depth,
3030 GLenum format, GLsizei imageSize)
3031 {
3032 GLint expectedSize, maxLevels = 0, maxTextureSize;
3033 (void) zoffset;
3034
3035 if (dimensions == 1) {
3036 /* 1D compressed textures not allowed */
3037 return GL_INVALID_ENUM;
3038 }
3039 else if (dimensions == 2) {
3040 if (target == GL_PROXY_TEXTURE_2D) {
3041 maxLevels = ctx->Const.MaxTextureLevels;
3042 }
3043 else if (target == GL_TEXTURE_2D) {
3044 maxLevels = ctx->Const.MaxTextureLevels;
3045 }
3046 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3047 if (!ctx->Extensions.ARB_texture_cube_map)
3048 return GL_INVALID_ENUM; /*target*/
3049 maxLevels = ctx->Const.MaxCubeTextureLevels;
3050 }
3051 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3052 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3053 if (!ctx->Extensions.ARB_texture_cube_map)
3054 return GL_INVALID_ENUM; /*target*/
3055 maxLevels = ctx->Const.MaxCubeTextureLevels;
3056 }
3057 else {
3058 return GL_INVALID_ENUM; /*target*/
3059 }
3060 }
3061 else if (dimensions == 3) {
3062 /* 3D compressed textures not allowed */
3063 return GL_INVALID_ENUM;
3064 }
3065
3066 maxTextureSize = 1 << (maxLevels - 1);
3067
3068 /* this will catch any invalid compressed format token */
3069 if (!is_compressed_format(ctx, format))
3070 return GL_INVALID_ENUM;
3071
3072 if (width < 1 || width > maxTextureSize)
3073 return GL_INVALID_VALUE;
3074
3075 if ((height < 1 || height > maxTextureSize)
3076 && dimensions > 1)
3077 return GL_INVALID_VALUE;
3078
3079 if (level < 0 || level >= maxLevels)
3080 return GL_INVALID_VALUE;
3081
3082 /* XXX these tests are specific to the compressed format.
3083 * this code should be generalized in some way.
3084 */
3085 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3086 return GL_INVALID_VALUE;
3087
3088 if ((width & 3) != 0 && width != 2 && width != 1)
3089 return GL_INVALID_VALUE;
3090
3091 if ((height & 3) != 0 && height != 2 && height != 1)
3092 return GL_INVALID_VALUE;
3093
3094 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3095 depth, format);
3096 if (expectedSize != imageSize)
3097 return GL_INVALID_VALUE;
3098
3099 return GL_NO_ERROR;
3100 }
3101
3102
3103
3104 void GLAPIENTRY
3105 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3106 GLenum internalFormat, GLsizei width,
3107 GLint border, GLsizei imageSize,
3108 const GLvoid *data)
3109 {
3110 GET_CURRENT_CONTEXT(ctx);
3111 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3112
3113 if (target == GL_TEXTURE_1D) {
3114 /* non-proxy target */
3115 struct gl_texture_unit *texUnit;
3116 struct gl_texture_object *texObj;
3117 struct gl_texture_image *texImage;
3118 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3119 internalFormat, width, 1, 1, border, imageSize);
3120 if (error) {
3121 _mesa_error(ctx, error, "glCompressedTexImage1D");
3122 return;
3123 }
3124
3125 texUnit = _mesa_get_current_tex_unit(ctx);
3126 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3127
3128 _mesa_lock_texture(ctx, texObj);
3129 {
3130 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3131 if (!texImage) {
3132 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3133 }
3134 else {
3135 if (texImage->Data) {
3136 ctx->Driver.FreeTexImageData( ctx, texImage );
3137 }
3138 ASSERT(texImage->Data == NULL);
3139
3140 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3141 border, internalFormat);
3142
3143 ASSERT(ctx->Driver.CompressedTexImage1D);
3144 ctx->Driver.CompressedTexImage1D(ctx, target, level,
3145 internalFormat, width, border,
3146 imageSize, data,
3147 texObj, texImage);
3148
3149 /* state update */
3150 texObj->_Complete = GL_FALSE;
3151 ctx->NewState |= _NEW_TEXTURE;
3152 }
3153 }
3154 _mesa_unlock_texture(ctx, texObj);
3155 }
3156 else if (target == GL_PROXY_TEXTURE_1D) {
3157 /* Proxy texture: check for errors and update proxy state */
3158 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3159 internalFormat, width, 1, 1, border, imageSize);
3160 if (!error) {
3161 ASSERT(ctx->Driver.TestProxyTexImage);
3162 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3163 internalFormat, GL_NONE, GL_NONE,
3164 width, 1, 1, border);
3165 }
3166 if (error) {
3167 /* if error, clear all proxy texture image parameters */
3168 struct gl_texture_image *texImage;
3169 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3170 if (texImage)
3171 clear_teximage_fields(texImage);
3172 }
3173 else {
3174 /* store the teximage parameters */
3175 struct gl_texture_unit *texUnit;
3176 struct gl_texture_object *texObj;
3177 struct gl_texture_image *texImage;
3178 texUnit = _mesa_get_current_tex_unit(ctx);
3179 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3180
3181 _mesa_lock_texture(ctx, texObj);
3182 {
3183 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3184 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3185 border, internalFormat);
3186 }
3187 _mesa_unlock_texture(ctx, texObj);
3188 }
3189 }
3190 else {
3191 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3192 return;
3193 }
3194 }
3195
3196
3197 void GLAPIENTRY
3198 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3199 GLenum internalFormat, GLsizei width,
3200 GLsizei height, GLint border, GLsizei imageSize,
3201 const GLvoid *data)
3202 {
3203 GET_CURRENT_CONTEXT(ctx);
3204 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3205
3206 if (target == GL_TEXTURE_2D ||
3207 (ctx->Extensions.ARB_texture_cube_map &&
3208 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3209 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3210 /* non-proxy target */
3211 struct gl_texture_unit *texUnit;
3212 struct gl_texture_object *texObj;
3213 struct gl_texture_image *texImage;
3214 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3215 internalFormat, width, height, 1, border, imageSize);
3216 if (error) {
3217 _mesa_error(ctx, error, "glCompressedTexImage2D");
3218 return;
3219 }
3220
3221 texUnit = _mesa_get_current_tex_unit(ctx);
3222 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3223
3224 _mesa_lock_texture(ctx, texObj);
3225 {
3226 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3227 if (!texImage) {
3228 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3229 }
3230 else {
3231 if (texImage->Data) {
3232 ctx->Driver.FreeTexImageData( ctx, texImage );
3233 }
3234 ASSERT(texImage->Data == NULL);
3235
3236 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3237 border, internalFormat);
3238
3239 ASSERT(ctx->Driver.CompressedTexImage2D);
3240 ctx->Driver.CompressedTexImage2D(ctx, target, level,
3241 internalFormat, width, height,
3242 border, imageSize, data,
3243 texObj, texImage);
3244
3245 /* state update */
3246 texObj->_Complete = GL_FALSE;
3247 ctx->NewState |= _NEW_TEXTURE;
3248 }
3249 }
3250 _mesa_unlock_texture(ctx, texObj);
3251 }
3252 else if (target == GL_PROXY_TEXTURE_2D ||
3253 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3254 ctx->Extensions.ARB_texture_cube_map)) {
3255 /* Proxy texture: check for errors and update proxy state */
3256 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3257 internalFormat, width, height, 1, border, imageSize);
3258 if (!error) {
3259 ASSERT(ctx->Driver.TestProxyTexImage);
3260 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3261 internalFormat, GL_NONE, GL_NONE,
3262 width, height, 1, border);
3263 }
3264 if (error) {
3265 /* if error, clear all proxy texture image parameters */
3266 struct gl_texture_image *texImage;
3267 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3268 if (texImage)
3269 clear_teximage_fields(texImage);
3270 }
3271 else {
3272 /* store the teximage parameters */
3273 struct gl_texture_unit *texUnit;
3274 struct gl_texture_object *texObj;
3275 struct gl_texture_image *texImage;
3276 texUnit = _mesa_get_current_tex_unit(ctx);
3277 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3278
3279 _mesa_lock_texture(ctx, texObj);
3280 {
3281 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3282 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3283 border, internalFormat);
3284 }
3285 _mesa_unlock_texture(ctx, texObj);
3286 }
3287 }
3288 else {
3289 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3290 return;
3291 }
3292 }
3293
3294
3295 void GLAPIENTRY
3296 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3297 GLenum internalFormat, GLsizei width,
3298 GLsizei height, GLsizei depth, GLint border,
3299 GLsizei imageSize, const GLvoid *data)
3300 {
3301 GET_CURRENT_CONTEXT(ctx);
3302 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3303
3304 if (target == GL_TEXTURE_3D) {
3305 /* non-proxy target */
3306 struct gl_texture_unit *texUnit;
3307 struct gl_texture_object *texObj;
3308 struct gl_texture_image *texImage;
3309 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3310 internalFormat, width, height, depth, border, imageSize);
3311 if (error) {
3312 _mesa_error(ctx, error, "glCompressedTexImage3D");
3313 return;
3314 }
3315
3316 texUnit = _mesa_get_current_tex_unit(ctx);
3317 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3318 _mesa_lock_texture(ctx, texObj);
3319 {
3320 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3321 if (!texImage) {
3322 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3323 }
3324 else {
3325 if (texImage->Data) {
3326 ctx->Driver.FreeTexImageData( ctx, texImage );
3327 }
3328 ASSERT(texImage->Data == NULL);
3329
3330 _mesa_init_teximage_fields(ctx, target, texImage,
3331 width, height, depth,
3332 border, internalFormat);
3333
3334 ASSERT(ctx->Driver.CompressedTexImage3D);
3335 ctx->Driver.CompressedTexImage3D(ctx, target, level,
3336 internalFormat,
3337 width, height, depth,
3338 border, imageSize, data,
3339 texObj, texImage);
3340
3341 /* state update */
3342 texObj->_Complete = GL_FALSE;
3343 ctx->NewState |= _NEW_TEXTURE;
3344 }
3345 }
3346 _mesa_unlock_texture(ctx, texObj);
3347 }
3348 else if (target == GL_PROXY_TEXTURE_3D) {
3349 /* Proxy texture: check for errors and update proxy state */
3350 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3351 internalFormat, width, height, depth, border, imageSize);
3352 if (!error) {
3353 ASSERT(ctx->Driver.TestProxyTexImage);
3354 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3355 internalFormat, GL_NONE, GL_NONE,
3356 width, height, depth, border);
3357 }
3358 if (error) {
3359 /* if error, clear all proxy texture image parameters */
3360 struct gl_texture_image *texImage;
3361 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3362 if (texImage)
3363 clear_teximage_fields(texImage);
3364 }
3365 else {
3366 /* store the teximage parameters */
3367 struct gl_texture_unit *texUnit;
3368 struct gl_texture_object *texObj;
3369 struct gl_texture_image *texImage;
3370 texUnit = _mesa_get_current_tex_unit(ctx);
3371 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3372 _mesa_lock_texture(ctx, texObj);
3373 {
3374 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3375 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3376 depth, border, internalFormat);
3377 }
3378 _mesa_unlock_texture(ctx, texObj);
3379 }
3380 }
3381 else {
3382 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3383 return;
3384 }
3385 }
3386
3387
3388 void GLAPIENTRY
3389 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3390 GLsizei width, GLenum format,
3391 GLsizei imageSize, const GLvoid *data)
3392 {
3393 struct gl_texture_unit *texUnit;
3394 struct gl_texture_object *texObj;
3395 struct gl_texture_image *texImage;
3396 GLenum error;
3397 GET_CURRENT_CONTEXT(ctx);
3398 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3399
3400 error = compressed_subtexture_error_check(ctx, 1, target, level,
3401 xoffset, 0, 0, /* pos */
3402 width, 1, 1, /* size */
3403 format, imageSize);
3404 if (error) {
3405 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3406 return;
3407 }
3408
3409 texUnit = _mesa_get_current_tex_unit(ctx);
3410 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3411
3412 _mesa_lock_texture(ctx, texObj);
3413 {
3414 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3415 assert(texImage);
3416
3417 if ((GLint) format != texImage->InternalFormat) {
3418 _mesa_error(ctx, GL_INVALID_OPERATION,
3419 "glCompressedTexSubImage1D(format)");
3420 }
3421 else if ((width == 1 || width == 2) &&
3422 (GLuint) width != texImage->Width) {
3423 _mesa_error(ctx, GL_INVALID_VALUE,
3424 "glCompressedTexSubImage1D(width)");
3425 }
3426 else if (width > 0) {
3427 if (ctx->Driver.CompressedTexSubImage1D) {
3428 ctx->Driver.CompressedTexSubImage1D(ctx, target, level,
3429 xoffset, width,
3430 format, imageSize, data,
3431 texObj, texImage);
3432 }
3433 }
3434 ctx->NewState |= _NEW_TEXTURE;
3435 }
3436 _mesa_unlock_texture(ctx, texObj);
3437 }
3438
3439
3440 void GLAPIENTRY
3441 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3442 GLint yoffset, GLsizei width, GLsizei height,
3443 GLenum format, GLsizei imageSize,
3444 const GLvoid *data)
3445 {
3446 struct gl_texture_unit *texUnit;
3447 struct gl_texture_object *texObj;
3448 struct gl_texture_image *texImage;
3449 GLenum error;
3450 GET_CURRENT_CONTEXT(ctx);
3451 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3452
3453 error = compressed_subtexture_error_check(ctx, 2, target, level,
3454 xoffset, yoffset, 0, /* pos */
3455 width, height, 1, /* size */
3456 format, imageSize);
3457 if (error) {
3458 /* XXX proxy target? */
3459 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3460 return;
3461 }
3462
3463 texUnit = _mesa_get_current_tex_unit(ctx);
3464 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3465
3466 _mesa_lock_texture(ctx, texObj);
3467 {
3468 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3469 assert(texImage);
3470
3471 if ((GLint) format != texImage->InternalFormat) {
3472 _mesa_error(ctx, GL_INVALID_OPERATION,
3473 "glCompressedTexSubImage2D(format)");
3474 }
3475 else if (((width == 1 || width == 2)
3476 && (GLuint) width != texImage->Width) ||
3477 ((height == 1 || height == 2)
3478 && (GLuint) height != texImage->Height)) {
3479 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3480 }
3481 else if (width > 0 && height > 0) {
3482 if (ctx->Driver.CompressedTexSubImage2D) {
3483 ctx->Driver.CompressedTexSubImage2D(ctx, target, level,
3484 xoffset, yoffset, width, height,
3485 format, imageSize, data,
3486 texObj, texImage);
3487 }
3488 }
3489 ctx->NewState |= _NEW_TEXTURE;
3490 }
3491 _mesa_unlock_texture(ctx, texObj);
3492 }
3493
3494
3495 void GLAPIENTRY
3496 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3497 GLint yoffset, GLint zoffset, GLsizei width,
3498 GLsizei height, GLsizei depth, GLenum format,
3499 GLsizei imageSize, const GLvoid *data)
3500 {
3501 struct gl_texture_unit *texUnit;
3502 struct gl_texture_object *texObj;
3503 struct gl_texture_image *texImage;
3504 GLenum error;
3505 GET_CURRENT_CONTEXT(ctx);
3506 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3507
3508 error = compressed_subtexture_error_check(ctx, 3, target, level,
3509 xoffset, yoffset, zoffset,/*pos*/
3510 width, height, depth, /*size*/
3511 format, imageSize);
3512 if (error) {
3513 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3514 return;
3515 }
3516
3517 texUnit = _mesa_get_current_tex_unit(ctx);
3518 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3519
3520 _mesa_lock_texture(ctx, texObj);
3521 {
3522 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3523 assert(texImage);
3524
3525 if ((GLint) format != texImage->InternalFormat) {
3526 _mesa_error(ctx, GL_INVALID_OPERATION,
3527 "glCompressedTexSubImage3D(format)");
3528 }
3529 else if (((width == 1 || width == 2)
3530 && (GLuint) width != texImage->Width) ||
3531 ((height == 1 || height == 2)
3532 && (GLuint) height != texImage->Height) ||
3533 ((depth == 1 || depth == 2)
3534 && (GLuint) depth != texImage->Depth)) {
3535 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3536 }
3537 else if (width > 0 && height > 0 && depth > 0) {
3538 if (ctx->Driver.CompressedTexSubImage3D) {
3539 ctx->Driver.CompressedTexSubImage3D(ctx, target, level,
3540 xoffset, yoffset, zoffset,
3541 width, height, depth,
3542 format, imageSize, data,
3543 texObj, texImage);
3544 }
3545 }
3546 ctx->NewState |= _NEW_TEXTURE;
3547 }
3548 _mesa_unlock_texture(ctx, texObj);
3549 }
3550
3551