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mesa: refactor: move _mesa_is_color/depth/stencil_format() helpers to image.c
[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 * Return pointer to current texture unit.
580 * This the texture unit set by glActiveTexture(), not glClientActiveTexture().
581 */
582 static INLINE struct gl_texture_unit *
583 get_current_tex_unit(GLcontext *ctx)
584 {
585 ASSERT(ctx->Texture.CurrentUnit < Elements(ctx->Texture.Unit));
586 return &(ctx->Texture.Unit[ctx->Texture.CurrentUnit]);
587 }
588
589
590 /**
591 * Get the texture object that corresponds to the target of the given texture unit.
592 *
593 * \param ctx GL context.
594 * \param texUnit texture unit.
595 * \param target texture target.
596 *
597 * \return pointer to the texture object on success, or NULL on failure.
598 *
599 * \sa gl_texture_unit.
600 */
601 struct gl_texture_object *
602 _mesa_select_tex_object(GLcontext *ctx, const struct gl_texture_unit *texUnit,
603 GLenum target)
604 {
605 switch (target) {
606 case GL_TEXTURE_1D:
607 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
608 case GL_PROXY_TEXTURE_1D:
609 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
610 case GL_TEXTURE_2D:
611 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
612 case GL_PROXY_TEXTURE_2D:
613 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
614 case GL_TEXTURE_3D:
615 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
616 case GL_PROXY_TEXTURE_3D:
617 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
618 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
619 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
620 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
621 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
622 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
623 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
624 case GL_TEXTURE_CUBE_MAP_ARB:
625 return ctx->Extensions.ARB_texture_cube_map
626 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
627 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
628 return ctx->Extensions.ARB_texture_cube_map
629 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
630 case GL_TEXTURE_RECTANGLE_NV:
631 return ctx->Extensions.NV_texture_rectangle
632 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
633 case GL_PROXY_TEXTURE_RECTANGLE_NV:
634 return ctx->Extensions.NV_texture_rectangle
635 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
636 case GL_TEXTURE_1D_ARRAY_EXT:
637 return ctx->Extensions.MESA_texture_array
638 ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
639 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
640 return ctx->Extensions.MESA_texture_array
641 ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
642 case GL_TEXTURE_2D_ARRAY_EXT:
643 return ctx->Extensions.MESA_texture_array
644 ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
645 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
646 return ctx->Extensions.MESA_texture_array
647 ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
648 default:
649 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
650 return NULL;
651 }
652 }
653
654
655 /**
656 * Get a texture image pointer from a texture object, given a texture
657 * target and mipmap level. The target and level parameters should
658 * have already been error-checked.
659 *
660 * \param ctx GL context.
661 * \param texObj texture unit.
662 * \param target texture target.
663 * \param level image level.
664 *
665 * \return pointer to the texture image structure, or NULL on failure.
666 */
667 struct gl_texture_image *
668 _mesa_select_tex_image(GLcontext *ctx, const struct gl_texture_object *texObj,
669 GLenum target, GLint level)
670 {
671 const GLuint face = _mesa_tex_target_to_face(target);
672
673 ASSERT(texObj);
674 ASSERT(level >= 0);
675 ASSERT(level < MAX_TEXTURE_LEVELS);
676
677 return texObj->Image[face][level];
678 }
679
680
681 /**
682 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
683 * it and install it. Only return NULL if passed a bad parameter or run
684 * out of memory.
685 */
686 struct gl_texture_image *
687 _mesa_get_tex_image(GLcontext *ctx, struct gl_texture_object *texObj,
688 GLenum target, GLint level)
689 {
690 struct gl_texture_image *texImage;
691
692 if (!texObj)
693 return NULL;
694
695 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
696 if (!texImage) {
697 texImage = ctx->Driver.NewTextureImage(ctx);
698 if (!texImage) {
699 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
700 return NULL;
701 }
702
703 _mesa_set_tex_image(texObj, target, level, texImage);
704 }
705
706 return texImage;
707 }
708
709
710 /**
711 * Return pointer to the specified proxy texture image.
712 * Note that proxy textures are per-context, not per-texture unit.
713 * \return pointer to texture image or NULL if invalid target, invalid
714 * level, or out of memory.
715 */
716 struct gl_texture_image *
717 _mesa_get_proxy_tex_image(GLcontext *ctx, GLenum target, GLint level)
718 {
719 struct gl_texture_image *texImage;
720 GLuint texIndex;
721
722 if (level < 0 )
723 return NULL;
724
725 switch (target) {
726 case GL_PROXY_TEXTURE_1D:
727 if (level >= ctx->Const.MaxTextureLevels)
728 return NULL;
729 texIndex = TEXTURE_1D_INDEX;
730 break;
731 case GL_PROXY_TEXTURE_2D:
732 if (level >= ctx->Const.MaxTextureLevels)
733 return NULL;
734 texIndex = TEXTURE_2D_INDEX;
735 break;
736 case GL_PROXY_TEXTURE_3D:
737 if (level >= ctx->Const.Max3DTextureLevels)
738 return NULL;
739 texIndex = TEXTURE_3D_INDEX;
740 break;
741 case GL_PROXY_TEXTURE_CUBE_MAP:
742 if (level >= ctx->Const.MaxCubeTextureLevels)
743 return NULL;
744 texIndex = TEXTURE_CUBE_INDEX;
745 break;
746 case GL_PROXY_TEXTURE_RECTANGLE_NV:
747 if (level > 0)
748 return NULL;
749 texIndex = TEXTURE_RECT_INDEX;
750 break;
751 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
752 if (level >= ctx->Const.MaxTextureLevels)
753 return NULL;
754 texIndex = TEXTURE_1D_ARRAY_INDEX;
755 break;
756 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
757 if (level >= ctx->Const.MaxTextureLevels)
758 return NULL;
759 texIndex = TEXTURE_2D_ARRAY_INDEX;
760 break;
761 default:
762 return NULL;
763 }
764
765 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
766 if (!texImage) {
767 texImage = ctx->Driver.NewTextureImage(ctx);
768 if (!texImage) {
769 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
770 return NULL;
771 }
772 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
773 /* Set the 'back' pointer */
774 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
775 }
776 return texImage;
777 }
778
779
780 /**
781 * Get the maximum number of allowed mipmap levels.
782 *
783 * \param ctx GL context.
784 * \param target texture target.
785 *
786 * \return the maximum number of allowed mipmap levels for the given
787 * texture target, or zero if passed a bad target.
788 *
789 * \sa gl_constants.
790 */
791 GLint
792 _mesa_max_texture_levels(GLcontext *ctx, GLenum target)
793 {
794 switch (target) {
795 case GL_TEXTURE_1D:
796 case GL_PROXY_TEXTURE_1D:
797 case GL_TEXTURE_2D:
798 case GL_PROXY_TEXTURE_2D:
799 case GL_TEXTURE_1D_ARRAY_EXT:
800 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
801 case GL_TEXTURE_2D_ARRAY_EXT:
802 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
803 return ctx->Const.MaxTextureLevels;
804 case GL_TEXTURE_3D:
805 case GL_PROXY_TEXTURE_3D:
806 return ctx->Const.Max3DTextureLevels;
807 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
808 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
809 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
810 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
811 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
812 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
813 case GL_TEXTURE_CUBE_MAP_ARB:
814 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
815 return ctx->Const.MaxCubeTextureLevels;
816 case GL_TEXTURE_RECTANGLE_NV:
817 case GL_PROXY_TEXTURE_RECTANGLE_NV:
818 return 1;
819 default:
820 return 0; /* bad target */
821 }
822 }
823
824
825
826 #if 000 /* not used anymore */
827 /*
828 * glTexImage[123]D can accept a NULL image pointer. In this case we
829 * create a texture image with unspecified image contents per the OpenGL
830 * spec.
831 */
832 static GLubyte *
833 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
834 {
835 const GLint components = _mesa_components_in_format(format);
836 const GLint numPixels = width * height * depth;
837 GLubyte *data = (GLubyte *) MALLOC(numPixels * components * sizeof(GLubyte));
838
839 #ifdef DEBUG
840 /*
841 * Let's see if anyone finds this. If glTexImage2D() is called with
842 * a NULL image pointer then load the texture image with something
843 * interesting instead of leaving it indeterminate.
844 */
845 if (data) {
846 static const char message[8][32] = {
847 " X X XXXXX XXX X ",
848 " XX XX X X X X X ",
849 " X X X X X X X ",
850 " X X XXXX XXX XXXXX ",
851 " X X X X X X ",
852 " X X X X X X X ",
853 " X X XXXXX XXX X X ",
854 " "
855 };
856
857 GLubyte *imgPtr = data;
858 GLint h, i, j, k;
859 for (h = 0; h < depth; h++) {
860 for (i = 0; i < height; i++) {
861 GLint srcRow = 7 - (i % 8);
862 for (j = 0; j < width; j++) {
863 GLint srcCol = j % 32;
864 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
865 for (k = 0; k < components; k++) {
866 *imgPtr++ = texel;
867 }
868 }
869 }
870 }
871 }
872 #endif
873
874 return data;
875 }
876 #endif
877
878
879
880 /**
881 * Reset the fields of a gl_texture_image struct to zero.
882 *
883 * \param img texture image structure.
884 *
885 * This is called when a proxy texture test fails, we set all the
886 * image members (except DriverData) to zero.
887 * It's also used in glTexImage[123]D as a safeguard to be sure all
888 * required fields get initialized properly by the Driver.TexImage[123]D
889 * functions.
890 */
891 static void
892 clear_teximage_fields(struct gl_texture_image *img)
893 {
894 ASSERT(img);
895 img->_BaseFormat = 0;
896 img->InternalFormat = 0;
897 img->Border = 0;
898 img->Width = 0;
899 img->Height = 0;
900 img->Depth = 0;
901 img->RowStride = 0;
902 if (img->ImageOffsets) {
903 _mesa_free(img->ImageOffsets);
904 img->ImageOffsets = NULL;
905 }
906 img->Width2 = 0;
907 img->Height2 = 0;
908 img->Depth2 = 0;
909 img->WidthLog2 = 0;
910 img->HeightLog2 = 0;
911 img->DepthLog2 = 0;
912 img->Data = NULL;
913 img->TexFormat = &_mesa_null_texformat;
914 img->FetchTexelc = NULL;
915 img->FetchTexelf = NULL;
916 img->IsCompressed = 0;
917 img->CompressedSize = 0;
918 }
919
920
921 /**
922 * Initialize basic fields of the gl_texture_image struct.
923 *
924 * \param ctx GL context.
925 * \param target texture target (GL_TEXTURE_1D, GL_TEXTURE_RECTANGLE, etc).
926 * \param img texture image structure to be initialized.
927 * \param width image width.
928 * \param height image height.
929 * \param depth image depth.
930 * \param border image border.
931 * \param internalFormat internal format.
932 *
933 * Fills in the fields of \p img with the given information.
934 * Note: width, height and depth include the border.
935 */
936 void
937 _mesa_init_teximage_fields(GLcontext *ctx, GLenum target,
938 struct gl_texture_image *img,
939 GLsizei width, GLsizei height, GLsizei depth,
940 GLint border, GLenum internalFormat)
941 {
942 GLint i;
943
944 ASSERT(img);
945 ASSERT(width >= 0);
946 ASSERT(height >= 0);
947 ASSERT(depth >= 0);
948
949 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
950 ASSERT(img->_BaseFormat > 0);
951 img->InternalFormat = internalFormat;
952 img->Border = border;
953 img->Width = width;
954 img->Height = height;
955 img->Depth = depth;
956
957 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
958 img->WidthLog2 = logbase2(img->Width2);
959
960 if (height == 1) { /* 1-D texture */
961 img->Height2 = 1;
962 img->HeightLog2 = 0;
963 }
964 else {
965 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
966 img->HeightLog2 = logbase2(img->Height2);
967 }
968
969 if (depth == 1) { /* 2-D texture */
970 img->Depth2 = 1;
971 img->DepthLog2 = 0;
972 }
973 else {
974 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
975 img->DepthLog2 = logbase2(img->Depth2);
976 }
977
978 img->MaxLog2 = MAX2(img->WidthLog2, img->HeightLog2);
979
980 img->IsCompressed = GL_FALSE;
981 img->CompressedSize = 0;
982
983 if ((width == 1 || _mesa_is_pow_two(img->Width2)) &&
984 (height == 1 || _mesa_is_pow_two(img->Height2)) &&
985 (depth == 1 || _mesa_is_pow_two(img->Depth2)))
986 img->_IsPowerOfTwo = GL_TRUE;
987 else
988 img->_IsPowerOfTwo = GL_FALSE;
989
990 /* RowStride and ImageOffsets[] describe how to address texels in 'Data' */
991 img->RowStride = width;
992 /* Allocate the ImageOffsets array and initialize to typical values.
993 * We allocate the array for 1D/2D textures too in order to avoid special-
994 * case code in the texstore routines.
995 */
996 if (img->ImageOffsets)
997 _mesa_free(img->ImageOffsets);
998 img->ImageOffsets = (GLuint *) _mesa_malloc(depth * sizeof(GLuint));
999 for (i = 0; i < depth; i++) {
1000 img->ImageOffsets[i] = i * width * height;
1001 }
1002
1003 /* Compute Width/Height/DepthScale for mipmap lod computation */
1004 if (target == GL_TEXTURE_RECTANGLE_NV) {
1005 /* scale = 1.0 since texture coords directly map to texels */
1006 img->WidthScale = 1.0;
1007 img->HeightScale = 1.0;
1008 img->DepthScale = 1.0;
1009 }
1010 else {
1011 img->WidthScale = (GLfloat) img->Width;
1012 img->HeightScale = (GLfloat) img->Height;
1013 img->DepthScale = (GLfloat) img->Depth;
1014 }
1015 }
1016
1017
1018 /**
1019 * Free and clear fields of the gl_texture_image struct.
1020 *
1021 * \param ctx GL context.
1022 * \param texImage texture image structure to be cleared.
1023 *
1024 * After the call, \p texImage will have no data associated with it. Its
1025 * fields are cleared so that its parent object will test incomplete.
1026 */
1027 void
1028 _mesa_clear_texture_image(GLcontext *ctx, struct gl_texture_image *texImage)
1029 {
1030 ctx->Driver.FreeTexImageData(ctx, texImage);
1031 clear_teximage_fields(texImage);
1032 }
1033
1034
1035 /**
1036 * This is the fallback for Driver.TestProxyTexImage(). Test the texture
1037 * level, width, height and depth against the ctx->Const limits for textures.
1038 *
1039 * A hardware driver might override this function if, for example, the
1040 * max 3D texture size is 512x512x64 (i.e. not a cube).
1041 *
1042 * Note that width, height, depth == 0 is not an error. However, a
1043 * texture with zero width/height/depth will be considered "incomplete"
1044 * and texturing will effectively be disabled.
1045 *
1046 * \param target one of GL_PROXY_TEXTURE_1D, GL_PROXY_TEXTURE_2D,
1047 * GL_PROXY_TEXTURE_3D, GL_PROXY_TEXTURE_RECTANGLE_NV,
1048 * GL_PROXY_TEXTURE_CUBE_MAP_ARB.
1049 * \param level as passed to glTexImage
1050 * \param internalFormat as passed to glTexImage
1051 * \param format as passed to glTexImage
1052 * \param type as passed to glTexImage
1053 * \param width as passed to glTexImage
1054 * \param height as passed to glTexImage
1055 * \param depth as passed to glTexImage
1056 * \param border as passed to glTexImage
1057 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1058 */
1059 GLboolean
1060 _mesa_test_proxy_teximage(GLcontext *ctx, GLenum target, GLint level,
1061 GLint internalFormat, GLenum format, GLenum type,
1062 GLint width, GLint height, GLint depth, GLint border)
1063 {
1064 GLint maxSize;
1065
1066 (void) internalFormat;
1067 (void) format;
1068 (void) type;
1069
1070 switch (target) {
1071 case GL_PROXY_TEXTURE_1D:
1072 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1073 if (width < 2 * border || width > 2 + maxSize ||
1074 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1075 width >0 && !_mesa_is_pow_two(width - 2 * border)) ||
1076 level >= ctx->Const.MaxTextureLevels) {
1077 /* bad width or level */
1078 return GL_FALSE;
1079 }
1080 return GL_TRUE;
1081 case GL_PROXY_TEXTURE_2D:
1082 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1083 if (width < 2 * border || width > 2 + maxSize ||
1084 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1085 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1086 height < 2 * border || height > 2 + maxSize ||
1087 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1088 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1089 level >= ctx->Const.MaxTextureLevels) {
1090 /* bad width or height or level */
1091 return GL_FALSE;
1092 }
1093 return GL_TRUE;
1094 case GL_PROXY_TEXTURE_3D:
1095 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1096 if (width < 2 * border || width > 2 + maxSize ||
1097 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1098 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1099 height < 2 * border || height > 2 + maxSize ||
1100 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1101 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1102 depth < 2 * border || depth > 2 + maxSize ||
1103 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1104 depth > 0 && !_mesa_is_pow_two(depth - 2 * border)) ||
1105 level >= ctx->Const.Max3DTextureLevels) {
1106 /* bad width or height or depth or level */
1107 return GL_FALSE;
1108 }
1109 return GL_TRUE;
1110 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1111 if (width < 0 || width > ctx->Const.MaxTextureRectSize ||
1112 height < 0 || height > ctx->Const.MaxTextureRectSize ||
1113 level != 0) {
1114 /* bad width or height or level */
1115 return GL_FALSE;
1116 }
1117 return GL_TRUE;
1118 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1119 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1120 if (width < 2 * border || width > 2 + maxSize ||
1121 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1122 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1123 height < 2 * border || height > 2 + maxSize ||
1124 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1125 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1126 level >= ctx->Const.MaxCubeTextureLevels) {
1127 /* bad width or height */
1128 return GL_FALSE;
1129 }
1130 return GL_TRUE;
1131 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1132 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1133 if (width < 2 * border || width > 2 + maxSize ||
1134 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1135 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1136 level >= ctx->Const.MaxTextureLevels) {
1137 /* bad width or level */
1138 return GL_FALSE;
1139 }
1140
1141 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers) {
1142 return GL_FALSE;
1143 }
1144 return GL_TRUE;
1145 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1146 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1147 if (width < 2 * border || width > 2 + maxSize ||
1148 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1149 width > 0 && !_mesa_is_pow_two(width - 2 * border)) ||
1150 height < 2 * border || height > 2 + maxSize ||
1151 (!ctx->Extensions.ARB_texture_non_power_of_two &&
1152 height > 0 && !_mesa_is_pow_two(height - 2 * border)) ||
1153 level >= ctx->Const.MaxTextureLevels) {
1154 /* bad width or height or level */
1155 return GL_FALSE;
1156 }
1157 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers) {
1158 return GL_FALSE;
1159 }
1160 return GL_TRUE;
1161 default:
1162 _mesa_problem(ctx, "Invalid target in _mesa_test_proxy_teximage");
1163 return GL_FALSE;
1164 }
1165 }
1166
1167
1168 /**
1169 * Helper function to determine whether a target supports compressed textures
1170 */
1171 static GLboolean
1172 target_can_be_compressed(GLcontext *ctx, GLenum target)
1173 {
1174 return (((target == GL_TEXTURE_2D || target == GL_PROXY_TEXTURE_2D))
1175 || ((ctx->Extensions.ARB_texture_cube_map &&
1176 (target == GL_PROXY_TEXTURE_CUBE_MAP ||
1177 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X &&
1178 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z))))
1179 || ((ctx->Extensions.MESA_texture_array &&
1180 ((target == GL_PROXY_TEXTURE_2D_ARRAY_EXT) ||
1181 (target == GL_TEXTURE_2D_ARRAY_EXT)))));
1182 }
1183
1184
1185 /**
1186 * Test the glTexImage[123]D() parameters for errors.
1187 *
1188 * \param ctx GL context.
1189 * \param target texture target given by the user.
1190 * \param level image level given by the user.
1191 * \param internalFormat internal format given by the user.
1192 * \param format pixel data format given by the user.
1193 * \param type pixel data type given by the user.
1194 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1195 * \param width image width given by the user.
1196 * \param height image height given by the user.
1197 * \param depth image depth given by the user.
1198 * \param border image border given by the user.
1199 *
1200 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1201 *
1202 * Verifies each of the parameters against the constants specified in
1203 * __GLcontextRec::Const and the supported extensions, and according to the
1204 * OpenGL specification.
1205 */
1206 static GLboolean
1207 texture_error_check( GLcontext *ctx, GLenum target,
1208 GLint level, GLint internalFormat,
1209 GLenum format, GLenum type,
1210 GLuint dimensions,
1211 GLint width, GLint height,
1212 GLint depth, GLint border )
1213 {
1214 const GLboolean isProxy = _mesa_is_proxy_texture(target);
1215 GLboolean sizeOK = GL_TRUE;
1216 GLboolean colorFormat, indexFormat;
1217 GLenum proxy_target;
1218
1219 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1220 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1221 if (!isProxy) {
1222 _mesa_error(ctx, GL_INVALID_VALUE,
1223 "glTexImage%dD(level=%d)", dimensions, level);
1224 }
1225 return GL_TRUE;
1226 }
1227
1228 /* Check border */
1229 if (border < 0 || border > 1 ||
1230 ((target == GL_TEXTURE_RECTANGLE_NV ||
1231 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1232 if (!isProxy) {
1233 _mesa_error(ctx, GL_INVALID_VALUE,
1234 "glTexImage%dD(border=%d)", dimensions, border);
1235 }
1236 return GL_TRUE;
1237 }
1238
1239 if (width < 0 || height < 0 || depth < 0) {
1240 if (!isProxy) {
1241 _mesa_error(ctx, GL_INVALID_VALUE,
1242 "glTexImage%dD(width, height or depth < 0)", dimensions);
1243 }
1244 return GL_TRUE;
1245 }
1246
1247 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1248 * level, width, height and depth.
1249 */
1250 if (dimensions == 1) {
1251 if (target == GL_PROXY_TEXTURE_1D || target == GL_TEXTURE_1D) {
1252 proxy_target = GL_PROXY_TEXTURE_1D;
1253 height = 1;
1254 depth = 1;
1255 }
1256 else {
1257 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
1258 return GL_TRUE;
1259 }
1260 }
1261 else if (dimensions == 2) {
1262 depth = 1;
1263 if (target == GL_PROXY_TEXTURE_2D || target == GL_TEXTURE_2D) {
1264 proxy_target = GL_PROXY_TEXTURE_2D;
1265 }
1266 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1267 (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1268 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
1269 if (!ctx->Extensions.ARB_texture_cube_map) {
1270 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1271 return GL_TRUE;
1272 }
1273 proxy_target = GL_PROXY_TEXTURE_CUBE_MAP_ARB;
1274 sizeOK = (width == height);
1275 }
1276 else if (target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
1277 target == GL_TEXTURE_RECTANGLE_NV) {
1278 if (!ctx->Extensions.NV_texture_rectangle) {
1279 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1280 return GL_TRUE;
1281 }
1282 proxy_target = GL_PROXY_TEXTURE_RECTANGLE_NV;
1283 }
1284 else if (target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
1285 target == GL_TEXTURE_1D_ARRAY_EXT) {
1286 proxy_target = GL_PROXY_TEXTURE_1D_ARRAY_EXT;
1287 }
1288 else {
1289 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage2D(target)");
1290 return GL_TRUE;
1291 }
1292 }
1293 else if (dimensions == 3) {
1294 if (target == GL_PROXY_TEXTURE_3D || target == GL_TEXTURE_3D) {
1295 proxy_target = GL_PROXY_TEXTURE_3D;
1296 }
1297 else if (target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
1298 target == GL_TEXTURE_2D_ARRAY_EXT) {
1299 proxy_target = GL_PROXY_TEXTURE_2D_ARRAY_EXT;
1300 }
1301 else {
1302 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
1303 return GL_TRUE;
1304 }
1305 }
1306 else {
1307 _mesa_problem( ctx, "bad dims in texture_error_check" );
1308 return GL_TRUE;
1309 }
1310
1311 sizeOK = sizeOK && ctx->Driver.TestProxyTexImage(ctx, proxy_target, level,
1312 internalFormat, format,
1313 type, width, height,
1314 depth, border);
1315 if (!sizeOK) {
1316 if (!isProxy) {
1317 _mesa_error(ctx, GL_INVALID_VALUE,
1318 "glTexImage%dD(level=%d, width=%d, height=%d, depth=%d)",
1319 dimensions, level, width, height, depth);
1320 }
1321 return GL_TRUE;
1322 }
1323
1324 /* Check internalFormat */
1325 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1326 if (!isProxy) {
1327 _mesa_error(ctx, GL_INVALID_VALUE,
1328 "glTexImage%dD(internalFormat=0x%x)",
1329 dimensions, internalFormat);
1330 }
1331 return GL_TRUE;
1332 }
1333
1334 /* Check incoming image format and type */
1335 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1336 /* Yes, generate GL_INVALID_OPERATION, not GL_INVALID_ENUM, if there
1337 * is a type/format mismatch. See 1.2 spec page 94, sec 3.6.4.
1338 */
1339 if (!isProxy) {
1340 _mesa_error(ctx, GL_INVALID_OPERATION,
1341 "glTexImage%dD(incompatible format 0x%x, type 0x%x)",
1342 dimensions, format, type);
1343 }
1344 return GL_TRUE;
1345 }
1346
1347 /* make sure internal format and format basically agree */
1348 colorFormat = _mesa_is_color_format(format);
1349 indexFormat = _mesa_is_index_format(format);
1350 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1351 (_mesa_is_index_format(internalFormat) && !indexFormat) ||
1352 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1353 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1354 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1355 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1356 if (!isProxy)
1357 _mesa_error(ctx, GL_INVALID_OPERATION,
1358 "glTexImage%dD(incompatible internalFormat 0x%x, format 0x%x)",
1359 dimensions, internalFormat, format);
1360 return GL_TRUE;
1361 }
1362
1363 /* additional checks for ycbcr textures */
1364 if (internalFormat == GL_YCBCR_MESA) {
1365 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1366 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1367 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1368 char message[100];
1369 _mesa_sprintf(message,
1370 "glTexImage%d(format/type YCBCR mismatch", dimensions);
1371 _mesa_error(ctx, GL_INVALID_ENUM, message);
1372 return GL_TRUE; /* error */
1373 }
1374 if (target != GL_TEXTURE_2D &&
1375 target != GL_PROXY_TEXTURE_2D &&
1376 target != GL_TEXTURE_RECTANGLE_NV &&
1377 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1378 if (!isProxy)
1379 _mesa_error(ctx, GL_INVALID_ENUM, "glTexImage(target)");
1380 return GL_TRUE;
1381 }
1382 if (border != 0) {
1383 if (!isProxy) {
1384 char message[100];
1385 _mesa_sprintf(message,
1386 "glTexImage%d(format=GL_YCBCR_MESA and border=%d)",
1387 dimensions, border);
1388 _mesa_error(ctx, GL_INVALID_VALUE, message);
1389 }
1390 return GL_TRUE;
1391 }
1392 }
1393
1394 /* additional checks for depth textures */
1395 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT) {
1396 /* Only 1D, 2D and rectangular textures supported, not 3D or cubes */
1397 if (target != GL_TEXTURE_1D &&
1398 target != GL_PROXY_TEXTURE_1D &&
1399 target != GL_TEXTURE_2D &&
1400 target != GL_PROXY_TEXTURE_2D &&
1401 target != GL_TEXTURE_RECTANGLE_ARB &&
1402 target != GL_PROXY_TEXTURE_RECTANGLE_ARB) {
1403 if (!isProxy)
1404 _mesa_error(ctx, GL_INVALID_ENUM,
1405 "glTexImage(target/internalFormat)");
1406 return GL_TRUE;
1407 }
1408 }
1409
1410 /* additional checks for compressed textures */
1411 if (is_compressed_format(ctx, internalFormat)) {
1412 if (!target_can_be_compressed(ctx, target) && !isProxy) {
1413 _mesa_error(ctx, GL_INVALID_ENUM,
1414 "glTexImage%d(target)", dimensions);
1415 return GL_TRUE;
1416 }
1417 if (border != 0) {
1418 if (!isProxy) {
1419 _mesa_error(ctx, GL_INVALID_OPERATION,
1420 "glTexImage%D(border!=0)", dimensions);
1421 }
1422 return GL_TRUE;
1423 }
1424 }
1425
1426 /* if we get here, the parameters are OK */
1427 return GL_FALSE;
1428 }
1429
1430
1431 /**
1432 * Test glTexSubImage[123]D() parameters for errors.
1433 *
1434 * \param ctx GL context.
1435 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1436 * \param target texture target given by the user.
1437 * \param level image level given by the user.
1438 * \param xoffset sub-image x offset given by the user.
1439 * \param yoffset sub-image y offset given by the user.
1440 * \param zoffset sub-image z offset given by the user.
1441 * \param format pixel data format given by the user.
1442 * \param type pixel data type given by the user.
1443 * \param width image width given by the user.
1444 * \param height image height given by the user.
1445 * \param depth image depth given by the user.
1446 *
1447 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1448 *
1449 * Verifies each of the parameters against the constants specified in
1450 * __GLcontextRec::Const and the supported extensions, and according to the
1451 * OpenGL specification.
1452 */
1453 static GLboolean
1454 subtexture_error_check( GLcontext *ctx, GLuint dimensions,
1455 GLenum target, GLint level,
1456 GLint xoffset, GLint yoffset, GLint zoffset,
1457 GLint width, GLint height, GLint depth,
1458 GLenum format, GLenum type )
1459 {
1460 /* Check target */
1461 if (dimensions == 1) {
1462 if (target != GL_TEXTURE_1D) {
1463 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage1D(target)" );
1464 return GL_TRUE;
1465 }
1466 }
1467 else if (dimensions == 2) {
1468 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1469 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1470 if (!ctx->Extensions.ARB_texture_cube_map) {
1471 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1472 return GL_TRUE;
1473 }
1474 }
1475 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1476 if (!ctx->Extensions.NV_texture_rectangle) {
1477 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1478 return GL_TRUE;
1479 }
1480 }
1481 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1482 if (!ctx->Extensions.MESA_texture_array) {
1483 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1484 return GL_TRUE;
1485 }
1486 }
1487 else if (target != GL_TEXTURE_2D) {
1488 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage2D(target)" );
1489 return GL_TRUE;
1490 }
1491 }
1492 else if (dimensions == 3) {
1493 if (target == GL_TEXTURE_2D_ARRAY_EXT) {
1494 if (!ctx->Extensions.MESA_texture_array) {
1495 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1496 return GL_TRUE;
1497 }
1498 }
1499 else if (target != GL_TEXTURE_3D) {
1500 _mesa_error( ctx, GL_INVALID_ENUM, "glTexSubImage3D(target)" );
1501 return GL_TRUE;
1502 }
1503 }
1504 else {
1505 _mesa_problem( ctx, "invalid dims in texture_error_check" );
1506 return GL_TRUE;
1507 }
1508
1509 /* Basic level check */
1510 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1511 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage2D(level=%d)", level);
1512 return GL_TRUE;
1513 }
1514
1515 if (width < 0) {
1516 _mesa_error(ctx, GL_INVALID_VALUE,
1517 "glTexSubImage%dD(width=%d)", dimensions, width);
1518 return GL_TRUE;
1519 }
1520 if (height < 0 && dimensions > 1) {
1521 _mesa_error(ctx, GL_INVALID_VALUE,
1522 "glTexSubImage%dD(height=%d)", dimensions, height);
1523 return GL_TRUE;
1524 }
1525 if (depth < 0 && dimensions > 2) {
1526 _mesa_error(ctx, GL_INVALID_VALUE,
1527 "glTexSubImage%dD(depth=%d)", dimensions, depth);
1528 return GL_TRUE;
1529 }
1530
1531 if (!_mesa_is_legal_format_and_type(ctx, format, type)) {
1532 _mesa_error(ctx, GL_INVALID_ENUM,
1533 "glTexSubImage%dD(incompatible format 0x%x, type 0x%x)",
1534 dimensions, format, type);
1535 return GL_TRUE;
1536 }
1537
1538 return GL_FALSE;
1539 }
1540
1541 static GLboolean
1542 subtexture_error_check2( GLcontext *ctx, GLuint dimensions,
1543 GLenum target, GLint level,
1544 GLint xoffset, GLint yoffset, GLint zoffset,
1545 GLint width, GLint height, GLint depth,
1546 GLenum format, GLenum type,
1547 const struct gl_texture_image *destTex )
1548 {
1549 if (!destTex) {
1550 /* undefined image level */
1551 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexSubImage%dD", dimensions);
1552 return GL_TRUE;
1553 }
1554
1555 if (xoffset < -((GLint)destTex->Border)) {
1556 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset)",
1557 dimensions);
1558 return GL_TRUE;
1559 }
1560 if (xoffset + width > (GLint) (destTex->Width + destTex->Border)) {
1561 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(xoffset+width)",
1562 dimensions);
1563 return GL_TRUE;
1564 }
1565 if (dimensions > 1) {
1566 if (yoffset < -((GLint)destTex->Border)) {
1567 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset)",
1568 dimensions);
1569 return GL_TRUE;
1570 }
1571 if (yoffset + height > (GLint) (destTex->Height + destTex->Border)) {
1572 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage%dD(yoffset+height)",
1573 dimensions);
1574 return GL_TRUE;
1575 }
1576 }
1577 if (dimensions > 2) {
1578 if (zoffset < -((GLint)destTex->Border)) {
1579 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset)");
1580 return GL_TRUE;
1581 }
1582 if (zoffset + depth > (GLint) (destTex->Depth + destTex->Border)) {
1583 _mesa_error(ctx, GL_INVALID_VALUE, "glTexSubImage3D(zoffset+depth)");
1584 return GL_TRUE;
1585 }
1586 }
1587
1588 #if FEATURE_EXT_texture_sRGB
1589 if (destTex->InternalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
1590 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
1591 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
1592 destTex->InternalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT) {
1593 if ((width & 0x3) || (height & 0x3) ||
1594 (xoffset & 0x3) || (yoffset & 0x3))
1595 _mesa_error(ctx, GL_INVALID_OPERATION,
1596 "glTexSubImage%dD(size or offset not multiple of 4)",
1597 dimensions);
1598 return GL_TRUE;
1599 }
1600 #endif
1601
1602 if (destTex->IsCompressed) {
1603 if (!target_can_be_compressed(ctx, target)) {
1604 _mesa_error(ctx, GL_INVALID_ENUM,
1605 "glTexSubImage%D(target)", dimensions);
1606 return GL_TRUE;
1607 }
1608 /* offset must be multiple of 4 */
1609 if ((xoffset & 3) || (yoffset & 3)) {
1610 _mesa_error(ctx, GL_INVALID_OPERATION,
1611 "glTexSubImage%D(xoffset or yoffset)", dimensions);
1612 return GL_TRUE;
1613 }
1614 /* size must be multiple of 4 or equal to whole texture size */
1615 if ((width & 3) && (GLuint) width != destTex->Width) {
1616 _mesa_error(ctx, GL_INVALID_OPERATION,
1617 "glTexSubImage%D(width)", dimensions);
1618 return GL_TRUE;
1619 }
1620 if ((height & 3) && (GLuint) height != destTex->Height) {
1621 _mesa_error(ctx, GL_INVALID_OPERATION,
1622 "glTexSubImage%D(width)", dimensions);
1623 return GL_TRUE;
1624 }
1625 }
1626
1627 return GL_FALSE;
1628 }
1629
1630
1631 /**
1632 * Test glCopyTexImage[12]D() parameters for errors.
1633 *
1634 * \param ctx GL context.
1635 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1636 * \param target texture target given by the user.
1637 * \param level image level given by the user.
1638 * \param internalFormat internal format given by the user.
1639 * \param width image width given by the user.
1640 * \param height image height given by the user.
1641 * \param border texture border.
1642 *
1643 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1644 *
1645 * Verifies each of the parameters against the constants specified in
1646 * __GLcontextRec::Const and the supported extensions, and according to the
1647 * OpenGL specification.
1648 */
1649 static GLboolean
1650 copytexture_error_check( GLcontext *ctx, GLuint dimensions,
1651 GLenum target, GLint level, GLint internalFormat,
1652 GLint width, GLint height, GLint border )
1653 {
1654 GLenum type;
1655 GLboolean sizeOK;
1656 GLint format;
1657
1658 /* Basic level check (more checking in ctx->Driver.TestProxyTexImage) */
1659 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1660 _mesa_error(ctx, GL_INVALID_VALUE,
1661 "glCopyTexImage%dD(level=%d)", dimensions, level);
1662 return GL_TRUE;
1663 }
1664
1665 /* Check that the source buffer is complete */
1666 if (ctx->ReadBuffer->Name) {
1667 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1668 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1669 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1670 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1671 return GL_TRUE;
1672 }
1673 }
1674
1675 /* Check border */
1676 if (border < 0 || border > 1 ||
1677 ((target == GL_TEXTURE_RECTANGLE_NV ||
1678 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1679 return GL_TRUE;
1680 }
1681
1682 format = _mesa_base_tex_format(ctx, internalFormat);
1683 if (format < 0) {
1684 _mesa_error(ctx, GL_INVALID_VALUE,
1685 "glCopyTexImage%dD(internalFormat)", dimensions);
1686 return GL_TRUE;
1687 }
1688
1689 if (!_mesa_source_buffer_exists(ctx, format)) {
1690 _mesa_error(ctx, GL_INVALID_OPERATION,
1691 "glCopyTexImage%dD(missing readbuffer)", dimensions);
1692 return GL_TRUE;
1693 }
1694
1695 /* NOTE: the format and type aren't really significant for
1696 * TestProxyTexImage(). Only the internalformat really matters.
1697 */
1698 type = GL_FLOAT;
1699
1700 /* Check target and call ctx->Driver.TestProxyTexImage() to check the
1701 * level, width, height and depth.
1702 */
1703 if (dimensions == 1) {
1704 if (target == GL_TEXTURE_1D) {
1705 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_1D,
1706 level, internalFormat,
1707 format, type,
1708 width, 1, 1, border);
1709 }
1710 else {
1711 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage1D(target)" );
1712 return GL_TRUE;
1713 }
1714 }
1715 else if (dimensions == 2) {
1716 if (target == GL_TEXTURE_2D) {
1717 sizeOK = ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_2D,
1718 level, internalFormat,
1719 format, type,
1720 width, height, 1, border);
1721 }
1722 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1723 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1724 if (!ctx->Extensions.ARB_texture_cube_map) {
1725 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1726 return GL_TRUE;
1727 }
1728 sizeOK = (width == height) &&
1729 ctx->Driver.TestProxyTexImage(ctx, GL_PROXY_TEXTURE_CUBE_MAP_ARB,
1730 level, internalFormat, format, type,
1731 width, height, 1, border);
1732 }
1733 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1734 if (!ctx->Extensions.NV_texture_rectangle) {
1735 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1736 return GL_TRUE;
1737 }
1738 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1739 GL_PROXY_TEXTURE_RECTANGLE_NV,
1740 level, internalFormat,
1741 format, type,
1742 width, height, 1, border);
1743 }
1744 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1745 if (!ctx->Extensions.MESA_texture_array) {
1746 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)");
1747 return GL_TRUE;
1748 }
1749 sizeOK = ctx->Driver.TestProxyTexImage(ctx,
1750 GL_PROXY_TEXTURE_1D_ARRAY_EXT,
1751 level, internalFormat,
1752 format, type,
1753 width, height, 1, border);
1754 }
1755 else {
1756 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexImage2D(target)" );
1757 return GL_TRUE;
1758 }
1759 }
1760 else {
1761 _mesa_problem(ctx, "invalid dimensions in copytexture_error_check");
1762 return GL_TRUE;
1763 }
1764
1765 if (!sizeOK) {
1766 if (dimensions == 1) {
1767 _mesa_error(ctx, GL_INVALID_VALUE,
1768 "glCopyTexImage1D(width=%d)", width);
1769 }
1770 else {
1771 ASSERT(dimensions == 2);
1772 _mesa_error(ctx, GL_INVALID_VALUE,
1773 "glCopyTexImage2D(width=%d, height=%d)", width, height);
1774 }
1775 return GL_TRUE;
1776 }
1777
1778 if (is_compressed_format(ctx, internalFormat)) {
1779 if (!target_can_be_compressed(ctx, target)) {
1780 _mesa_error(ctx, GL_INVALID_ENUM,
1781 "glCopyTexImage%d(target)", dimensions);
1782 return GL_TRUE;
1783 }
1784 if (border != 0) {
1785 _mesa_error(ctx, GL_INVALID_OPERATION,
1786 "glCopyTexImage%D(border!=0)", dimensions);
1787 return GL_TRUE;
1788 }
1789 }
1790 else if (_mesa_is_depth_format(internalFormat)) {
1791 /* make sure we have depth/stencil buffers */
1792 if (!ctx->ReadBuffer->_DepthBuffer) {
1793 _mesa_error(ctx, GL_INVALID_OPERATION,
1794 "glCopyTexImage%D(no depth)", dimensions);
1795 return GL_TRUE;
1796 }
1797 }
1798 else if (_mesa_is_depthstencil_format(internalFormat)) {
1799 /* make sure we have depth/stencil buffers */
1800 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
1801 _mesa_error(ctx, GL_INVALID_OPERATION,
1802 "glCopyTexImage%D(no depth/stencil buffer)", dimensions);
1803 return GL_TRUE;
1804 }
1805 }
1806
1807 /* if we get here, the parameters are OK */
1808 return GL_FALSE;
1809 }
1810
1811
1812 /**
1813 * Test glCopyTexSubImage[12]D() parameters for errors.
1814 * Note that this is the first part of error checking.
1815 * See also copytexsubimage_error_check2() below for the second part.
1816 *
1817 * \param ctx GL context.
1818 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1819 * \param target texture target given by the user.
1820 * \param level image level given by the user.
1821 *
1822 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
1823 */
1824 static GLboolean
1825 copytexsubimage_error_check1( GLcontext *ctx, GLuint dimensions,
1826 GLenum target, GLint level)
1827 {
1828 /* Check that the source buffer is complete */
1829 if (ctx->ReadBuffer->Name) {
1830 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
1831 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
1832 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
1833 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
1834 return GL_TRUE;
1835 }
1836 }
1837
1838 /* Check target */
1839 if (dimensions == 1) {
1840 if (target != GL_TEXTURE_1D) {
1841 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage1D(target)" );
1842 return GL_TRUE;
1843 }
1844 }
1845 else if (dimensions == 2) {
1846 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
1847 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
1848 if (!ctx->Extensions.ARB_texture_cube_map) {
1849 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1850 return GL_TRUE;
1851 }
1852 }
1853 else if (target == GL_TEXTURE_RECTANGLE_NV) {
1854 if (!ctx->Extensions.NV_texture_rectangle) {
1855 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1856 return GL_TRUE;
1857 }
1858 }
1859 else if (target == GL_TEXTURE_1D_ARRAY_EXT) {
1860 if (!ctx->Extensions.MESA_texture_array) {
1861 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1862 return GL_TRUE;
1863 }
1864 }
1865 else if (target != GL_TEXTURE_2D) {
1866 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage2D(target)" );
1867 return GL_TRUE;
1868 }
1869 }
1870 else if (dimensions == 3) {
1871 if (((target != GL_TEXTURE_2D_ARRAY_EXT) ||
1872 (!ctx->Extensions.MESA_texture_array))
1873 && (target != GL_TEXTURE_3D)) {
1874 _mesa_error( ctx, GL_INVALID_ENUM, "glCopyTexSubImage3D(target)" );
1875 return GL_TRUE;
1876 }
1877 }
1878
1879 /* Check level */
1880 if (level < 0 || level >= MAX_TEXTURE_LEVELS) {
1881 _mesa_error(ctx, GL_INVALID_VALUE,
1882 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
1883 return GL_TRUE;
1884 }
1885
1886 return GL_FALSE;
1887 }
1888
1889
1890 /**
1891 * Second part of error checking for glCopyTexSubImage[12]D().
1892 * \param xoffset sub-image x offset given by the user.
1893 * \param yoffset sub-image y offset given by the user.
1894 * \param zoffset sub-image z offset given by the user.
1895 * \param width image width given by the user.
1896 * \param height image height given by the user.
1897 */
1898 static GLboolean
1899 copytexsubimage_error_check2( GLcontext *ctx, GLuint dimensions,
1900 GLenum target, GLint level,
1901 GLint xoffset, GLint yoffset, GLint zoffset,
1902 GLsizei width, GLsizei height,
1903 const struct gl_texture_image *teximage )
1904 {
1905 /* check that dest tex image exists */
1906 if (!teximage) {
1907 _mesa_error(ctx, GL_INVALID_OPERATION,
1908 "glCopyTexSubImage%dD(undefined texture level: %d)",
1909 dimensions, level);
1910 return GL_TRUE;
1911 }
1912
1913 /* Check size */
1914 if (width < 0) {
1915 _mesa_error(ctx, GL_INVALID_VALUE,
1916 "glCopyTexSubImage%dD(width=%d)", dimensions, width);
1917 return GL_TRUE;
1918 }
1919 if (dimensions > 1 && height < 0) {
1920 _mesa_error(ctx, GL_INVALID_VALUE,
1921 "glCopyTexSubImage%dD(height=%d)", dimensions, height);
1922 return GL_TRUE;
1923 }
1924
1925 /* check x/y offsets */
1926 if (xoffset < -((GLint)teximage->Border)) {
1927 _mesa_error(ctx, GL_INVALID_VALUE,
1928 "glCopyTexSubImage%dD(xoffset=%d)", dimensions, xoffset);
1929 return GL_TRUE;
1930 }
1931 if (xoffset + width > (GLint) (teximage->Width + teximage->Border)) {
1932 _mesa_error(ctx, GL_INVALID_VALUE,
1933 "glCopyTexSubImage%dD(xoffset+width)", dimensions);
1934 return GL_TRUE;
1935 }
1936 if (dimensions > 1) {
1937 if (yoffset < -((GLint)teximage->Border)) {
1938 _mesa_error(ctx, GL_INVALID_VALUE,
1939 "glCopyTexSubImage%dD(yoffset=%d)", dimensions, yoffset);
1940 return GL_TRUE;
1941 }
1942 /* NOTE: we're adding the border here, not subtracting! */
1943 if (yoffset + height > (GLint) (teximage->Height + teximage->Border)) {
1944 _mesa_error(ctx, GL_INVALID_VALUE,
1945 "glCopyTexSubImage%dD(yoffset+height)", dimensions);
1946 return GL_TRUE;
1947 }
1948 }
1949
1950 /* check z offset */
1951 if (dimensions > 2) {
1952 if (zoffset < -((GLint)teximage->Border)) {
1953 _mesa_error(ctx, GL_INVALID_VALUE,
1954 "glCopyTexSubImage%dD(zoffset)", dimensions);
1955 return GL_TRUE;
1956 }
1957 if (zoffset > (GLint) (teximage->Depth + teximage->Border)) {
1958 _mesa_error(ctx, GL_INVALID_VALUE,
1959 "glCopyTexSubImage%dD(zoffset+depth)", dimensions);
1960 return GL_TRUE;
1961 }
1962 }
1963
1964 if (teximage->IsCompressed) {
1965 if (!target_can_be_compressed(ctx, target)) {
1966 _mesa_error(ctx, GL_INVALID_ENUM,
1967 "glCopyTexSubImage%d(target)", dimensions);
1968 return GL_TRUE;
1969 }
1970 /* offset must be multiple of 4 */
1971 if ((xoffset & 3) || (yoffset & 3)) {
1972 _mesa_error(ctx, GL_INVALID_VALUE,
1973 "glCopyTexSubImage%D(xoffset or yoffset)", dimensions);
1974 return GL_TRUE;
1975 }
1976 /* size must be multiple of 4 */
1977 if ((width & 3) != 0 && (GLuint) width != teximage->Width) {
1978 _mesa_error(ctx, GL_INVALID_VALUE,
1979 "glCopyTexSubImage%D(width)", dimensions);
1980 return GL_TRUE;
1981 }
1982 if ((height & 3) != 0 && (GLuint) height != teximage->Height) {
1983 _mesa_error(ctx, GL_INVALID_VALUE,
1984 "glCopyTexSubImage%D(height)", dimensions);
1985 return GL_TRUE;
1986 }
1987 }
1988
1989 if (teximage->InternalFormat == GL_YCBCR_MESA) {
1990 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
1991 return GL_TRUE;
1992 }
1993
1994 if (!_mesa_source_buffer_exists(ctx, teximage->_BaseFormat)) {
1995 _mesa_error(ctx, GL_INVALID_OPERATION,
1996 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
1997 dimensions, teximage->_BaseFormat);
1998 return GL_TRUE;
1999 }
2000
2001 if (teximage->_BaseFormat == GL_DEPTH_COMPONENT) {
2002 if (!ctx->ReadBuffer->_DepthBuffer) {
2003 _mesa_error(ctx, GL_INVALID_OPERATION,
2004 "glCopyTexSubImage%D(no depth buffer)",
2005 dimensions);
2006 return GL_TRUE;
2007 }
2008 }
2009 else if (teximage->_BaseFormat == GL_DEPTH_STENCIL_EXT) {
2010 if (!ctx->ReadBuffer->_DepthBuffer || !ctx->ReadBuffer->_StencilBuffer) {
2011 _mesa_error(ctx, GL_INVALID_OPERATION,
2012 "glCopyTexSubImage%D(no depth/stencil buffer)",
2013 dimensions);
2014 return GL_TRUE;
2015 }
2016 }
2017
2018 /* if we get here, the parameters are OK */
2019 return GL_FALSE;
2020 }
2021
2022
2023 /** Callback info for walking over FBO hash table */
2024 struct cb_info
2025 {
2026 GLcontext *ctx;
2027 struct gl_texture_object *texObj;
2028 GLuint level, face;
2029 };
2030
2031
2032 /**
2033 * Check render to texture callback. Called from _mesa_HashWalk().
2034 */
2035 static void
2036 check_rtt_cb(GLuint key, void *data, void *userData)
2037 {
2038 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2039 const struct cb_info *info = (struct cb_info *) userData;
2040 GLcontext *ctx = info->ctx;
2041 const struct gl_texture_object *texObj = info->texObj;
2042 const GLuint level = info->level, face = info->face;
2043
2044 /* If this is a user-created FBO */
2045 if (fb->Name) {
2046 GLuint i;
2047 /* check if any of the FBO's attachments point to 'texObj' */
2048 for (i = 0; i < BUFFER_COUNT; i++) {
2049 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2050 if (att->Type == GL_TEXTURE &&
2051 att->Texture == texObj &&
2052 att->TextureLevel == level &&
2053 att->CubeMapFace == face) {
2054 ASSERT(att->Texture->Image[att->CubeMapFace][att->TextureLevel]);
2055 /* Tell driver about the new renderbuffer texture */
2056 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2057 /* Mark fb status as indeterminate to force re-validation */
2058 fb->_Status = 0;
2059 }
2060 }
2061 }
2062 }
2063
2064
2065 /**
2066 * When a texture image is specified we have to check if it's bound to
2067 * any framebuffer objects (render to texture) in order to detect changes
2068 * in size or format since that effects FBO completeness.
2069 * Any FBOs rendering into the texture must be re-validated.
2070 */
2071 static void
2072 update_fbo_texture(GLcontext *ctx, struct gl_texture_object *texObj,
2073 GLuint face, GLuint level)
2074 {
2075 /* Only check this texture if it's been marked as RenderToTexture */
2076 if (texObj->_RenderToTexture) {
2077 struct cb_info info;
2078 info.ctx = ctx;
2079 info.texObj = texObj;
2080 info.level = level;
2081 info.face = face;
2082 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2083 }
2084 }
2085
2086
2087 /** Debug helper: override the user-requested internal format */
2088 static GLenum
2089 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2090 {
2091 #if 0
2092 if (internalFormat == GL_RGBA16F_ARB ||
2093 internalFormat == GL_RGBA32F_ARB) {
2094 printf("Convert rgba float tex to int %d x %d\n", width, height);
2095 return GL_RGBA;
2096 }
2097 else if (internalFormat == GL_RGB16F_ARB ||
2098 internalFormat == GL_RGB32F_ARB) {
2099 printf("Convert rgb float tex to int %d x %d\n", width, height);
2100 return GL_RGB;
2101 }
2102 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2103 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2104 printf("Convert luminance float tex to int %d x %d\n", width, height);
2105 return GL_LUMINANCE_ALPHA;
2106 }
2107 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2108 internalFormat == GL_LUMINANCE32F_ARB) {
2109 printf("Convert luminance float tex to int %d x %d\n", width, height);
2110 return GL_LUMINANCE;
2111 }
2112 else if (internalFormat == GL_ALPHA16F_ARB ||
2113 internalFormat == GL_ALPHA32F_ARB) {
2114 printf("Convert luminance float tex to int %d x %d\n", width, height);
2115 return GL_ALPHA;
2116 }
2117 /*
2118 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2119 internalFormat = GL_RGBA;
2120 }
2121 */
2122 else {
2123 return internalFormat;
2124 }
2125 #else
2126 return internalFormat;
2127 #endif
2128 }
2129
2130
2131 /*
2132 * Called from the API. Note that width includes the border.
2133 */
2134 void GLAPIENTRY
2135 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
2136 GLsizei width, GLint border, GLenum format,
2137 GLenum type, const GLvoid *pixels )
2138 {
2139 GLsizei postConvWidth = width;
2140 GET_CURRENT_CONTEXT(ctx);
2141 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2142
2143 internalFormat = override_internal_format(internalFormat, width, 1);
2144
2145 #if FEATURE_convolve
2146 if (_mesa_is_color_format(internalFormat)) {
2147 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2148 }
2149 #endif
2150
2151 if (target == GL_TEXTURE_1D) {
2152 /* non-proxy target */
2153 struct gl_texture_unit *texUnit;
2154 struct gl_texture_object *texObj;
2155 struct gl_texture_image *texImage;
2156 const GLuint face = _mesa_tex_target_to_face(target);
2157
2158 if (texture_error_check(ctx, target, level, internalFormat,
2159 format, type, 1, postConvWidth, 1, 1, border)) {
2160 return; /* error was recorded */
2161 }
2162
2163 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2164 _mesa_update_state(ctx);
2165
2166 texUnit = get_current_tex_unit(ctx);
2167 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2168 _mesa_lock_texture(ctx, texObj);
2169 {
2170 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2171 if (!texImage) {
2172 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage1D");
2173 goto out;
2174 }
2175
2176 if (texImage->Data) {
2177 ctx->Driver.FreeTexImageData( ctx, texImage );
2178 }
2179
2180 ASSERT(texImage->Data == NULL);
2181
2182 clear_teximage_fields(texImage); /* not really needed, but helpful */
2183 _mesa_init_teximage_fields(ctx, target, texImage,
2184 postConvWidth, 1, 1,
2185 border, internalFormat);
2186
2187 ASSERT(ctx->Driver.TexImage1D);
2188
2189 /* Give the texture to the driver! <pixels> may be null! */
2190 (*ctx->Driver.TexImage1D)(ctx, target, level, internalFormat,
2191 width, border, format, type, pixels,
2192 &ctx->Unpack, texObj, texImage);
2193
2194 ASSERT(texImage->TexFormat);
2195
2196 update_fbo_texture(ctx, texObj, face, level);
2197
2198 /* state update */
2199 texObj->_Complete = GL_FALSE;
2200 ctx->NewState |= _NEW_TEXTURE;
2201 }
2202 out:
2203 _mesa_unlock_texture(ctx, texObj);
2204 }
2205 else if (target == GL_PROXY_TEXTURE_1D) {
2206 /* Proxy texture: check for errors and update proxy state */
2207 struct gl_texture_image *texImage;
2208 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2209 if (texture_error_check(ctx, target, level, internalFormat,
2210 format, type, 1, postConvWidth, 1, 1, border)) {
2211 /* when error, clear all proxy texture image parameters */
2212 if (texImage)
2213 clear_teximage_fields(texImage);
2214 }
2215 else {
2216 /* no error, set the tex image parameters */
2217 ASSERT(texImage);
2218 _mesa_init_teximage_fields(ctx, target, texImage,
2219 postConvWidth, 1, 1,
2220 border, internalFormat);
2221 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2222 internalFormat, format, type);
2223 }
2224 }
2225 else {
2226 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage1D(target)" );
2227 return;
2228 }
2229 }
2230
2231
2232 void GLAPIENTRY
2233 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
2234 GLsizei width, GLsizei height, GLint border,
2235 GLenum format, GLenum type,
2236 const GLvoid *pixels )
2237 {
2238 GLsizei postConvWidth = width, postConvHeight = height;
2239 GET_CURRENT_CONTEXT(ctx);
2240 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2241
2242 internalFormat = override_internal_format(internalFormat, width, height);
2243
2244 #if FEATURE_convolve
2245 if (_mesa_is_color_format(internalFormat)) {
2246 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2247 &postConvHeight);
2248 }
2249 #endif
2250
2251 if (target == GL_TEXTURE_2D ||
2252 (ctx->Extensions.ARB_texture_cube_map &&
2253 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2254 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) ||
2255 (ctx->Extensions.NV_texture_rectangle &&
2256 target == GL_TEXTURE_RECTANGLE_NV) ||
2257 (ctx->Extensions.MESA_texture_array &&
2258 target == GL_TEXTURE_1D_ARRAY_EXT)) {
2259 /* non-proxy target */
2260 struct gl_texture_unit *texUnit;
2261 struct gl_texture_object *texObj;
2262 struct gl_texture_image *texImage;
2263 const GLuint face = _mesa_tex_target_to_face(target);
2264
2265 if (texture_error_check(ctx, target, level, internalFormat,
2266 format, type, 2, postConvWidth, postConvHeight,
2267 1, border)) {
2268 return; /* error was recorded */
2269 }
2270
2271 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2272 _mesa_update_state(ctx);
2273
2274 texUnit = get_current_tex_unit(ctx);
2275 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2276 _mesa_lock_texture(ctx, texObj);
2277 {
2278 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2279 if (!texImage) {
2280 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage2D");
2281 goto out;
2282 }
2283
2284 if (texImage->Data) {
2285 ctx->Driver.FreeTexImageData( ctx, texImage );
2286 }
2287
2288 ASSERT(texImage->Data == NULL);
2289 clear_teximage_fields(texImage); /* not really needed, but helpful */
2290 _mesa_init_teximage_fields(ctx, target, texImage,
2291 postConvWidth, postConvHeight, 1,
2292 border, internalFormat);
2293
2294 ASSERT(ctx->Driver.TexImage2D);
2295
2296 /* Give the texture to the driver! <pixels> may be null! */
2297 (*ctx->Driver.TexImage2D)(ctx, target, level, internalFormat,
2298 width, height, border, format, type, pixels,
2299 &ctx->Unpack, texObj, texImage);
2300
2301 ASSERT(texImage->TexFormat);
2302
2303 update_fbo_texture(ctx, texObj, face, level);
2304
2305 /* state update */
2306 texObj->_Complete = GL_FALSE;
2307 ctx->NewState |= _NEW_TEXTURE;
2308 }
2309 out:
2310 _mesa_unlock_texture(ctx, texObj);
2311 }
2312 else if (target == GL_PROXY_TEXTURE_2D ||
2313 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
2314 ctx->Extensions.ARB_texture_cube_map) ||
2315 (target == GL_PROXY_TEXTURE_RECTANGLE_NV &&
2316 ctx->Extensions.NV_texture_rectangle) ||
2317 (ctx->Extensions.MESA_texture_array &&
2318 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT)) {
2319 /* Proxy texture: check for errors and update proxy state */
2320 struct gl_texture_image *texImage;
2321 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2322 if (texture_error_check(ctx, target, level, internalFormat,
2323 format, type, 2, postConvWidth, postConvHeight,
2324 1, border)) {
2325 /* when error, clear all proxy texture image parameters */
2326 if (texImage)
2327 clear_teximage_fields(texImage);
2328 }
2329 else {
2330 /* no error, set the tex image parameters */
2331 _mesa_init_teximage_fields(ctx, target, texImage,
2332 postConvWidth, postConvHeight, 1,
2333 border, internalFormat);
2334 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2335 internalFormat, format, type);
2336 }
2337 }
2338 else {
2339 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage2D(target)" );
2340 return;
2341 }
2342 }
2343
2344
2345 /*
2346 * Called by the API or display list executor.
2347 * Note that width and height include the border.
2348 */
2349 void GLAPIENTRY
2350 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
2351 GLsizei width, GLsizei height, GLsizei depth,
2352 GLint border, GLenum format, GLenum type,
2353 const GLvoid *pixels )
2354 {
2355 GET_CURRENT_CONTEXT(ctx);
2356 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2357
2358 internalFormat = override_internal_format(internalFormat, width, height);
2359
2360 if (target == GL_TEXTURE_3D ||
2361 (ctx->Extensions.MESA_texture_array &&
2362 target == GL_TEXTURE_2D_ARRAY_EXT)) {
2363 /* non-proxy target */
2364 struct gl_texture_unit *texUnit;
2365 struct gl_texture_object *texObj;
2366 struct gl_texture_image *texImage;
2367 const GLuint face = _mesa_tex_target_to_face(target);
2368
2369 if (texture_error_check(ctx, target, level, (GLint) internalFormat,
2370 format, type, 3, width, height, depth, border)) {
2371 return; /* error was recorded */
2372 }
2373
2374 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2375 _mesa_update_state(ctx);
2376
2377 texUnit = get_current_tex_unit(ctx);
2378 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2379 _mesa_lock_texture(ctx, texObj);
2380 {
2381 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2382 if (!texImage) {
2383 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexImage3D");
2384 goto out;
2385 }
2386
2387 if (texImage->Data) {
2388 ctx->Driver.FreeTexImageData( ctx, texImage );
2389 }
2390
2391 ASSERT(texImage->Data == NULL);
2392 clear_teximage_fields(texImage); /* not really needed, but helpful */
2393 _mesa_init_teximage_fields(ctx, target, texImage,
2394 width, height, depth,
2395 border, internalFormat);
2396
2397 ASSERT(ctx->Driver.TexImage3D);
2398
2399 /* Give the texture to the driver! <pixels> may be null! */
2400 (*ctx->Driver.TexImage3D)(ctx, target, level, internalFormat,
2401 width, height, depth, border, format, type,
2402 pixels, &ctx->Unpack, texObj, texImage);
2403
2404 ASSERT(texImage->TexFormat);
2405
2406 update_fbo_texture(ctx, texObj, face, level);
2407
2408 /* state update */
2409 texObj->_Complete = GL_FALSE;
2410 ctx->NewState |= _NEW_TEXTURE;
2411 }
2412 out:
2413 _mesa_unlock_texture(ctx, texObj);
2414 }
2415 else if (target == GL_PROXY_TEXTURE_3D ||
2416 (ctx->Extensions.MESA_texture_array &&
2417 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT)) {
2418 /* Proxy texture: check for errors and update proxy state */
2419 struct gl_texture_image *texImage;
2420 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
2421 if (texture_error_check(ctx, target, level, internalFormat,
2422 format, type, 3, width, height, depth, border)) {
2423 /* when error, clear all proxy texture image parameters */
2424 if (texImage)
2425 clear_teximage_fields(texImage);
2426 }
2427 else {
2428 /* no error, set the tex image parameters */
2429 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
2430 depth, border, internalFormat);
2431 texImage->TexFormat = (*ctx->Driver.ChooseTextureFormat)(ctx,
2432 internalFormat, format, type);
2433 }
2434 }
2435 else {
2436 _mesa_error( ctx, GL_INVALID_ENUM, "glTexImage3D(target)" );
2437 return;
2438 }
2439 }
2440
2441
2442 void GLAPIENTRY
2443 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
2444 GLsizei width, GLsizei height, GLsizei depth,
2445 GLint border, GLenum format, GLenum type,
2446 const GLvoid *pixels )
2447 {
2448 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
2449 depth, border, format, type, pixels);
2450 }
2451
2452
2453
2454 void GLAPIENTRY
2455 _mesa_TexSubImage1D( GLenum target, GLint level,
2456 GLint xoffset, GLsizei width,
2457 GLenum format, GLenum type,
2458 const GLvoid *pixels )
2459 {
2460 GLsizei postConvWidth = width;
2461 struct gl_texture_unit *texUnit;
2462 struct gl_texture_object *texObj;
2463 struct gl_texture_image *texImage = NULL;
2464 GET_CURRENT_CONTEXT(ctx);
2465 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2466
2467 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2468 _mesa_update_state(ctx);
2469
2470 #if FEATURE_convolve
2471 /* XXX should test internal format */
2472 if (_mesa_is_color_format(format)) {
2473 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2474 }
2475 #endif
2476
2477 if (subtexture_error_check(ctx, 1, target, level, xoffset, 0, 0,
2478 postConvWidth, 1, 1, format, type)) {
2479 return; /* error was detected */
2480 }
2481
2482
2483 texUnit = get_current_tex_unit(ctx);
2484 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2485 assert(texObj);
2486
2487 _mesa_lock_texture(ctx, texObj);
2488 {
2489 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2490
2491 if (subtexture_error_check2(ctx, 1, target, level, xoffset, 0, 0,
2492 postConvWidth, 1, 1, format, type, texImage)) {
2493 goto out; /* error was detected */
2494 }
2495
2496 if (width == 0)
2497 goto out; /* no-op, not an error */
2498
2499 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2500 xoffset += texImage->Border;
2501
2502 ASSERT(ctx->Driver.TexSubImage1D);
2503 (*ctx->Driver.TexSubImage1D)(ctx, target, level, xoffset, width,
2504 format, type, pixels, &ctx->Unpack,
2505 texObj, texImage);
2506 ctx->NewState |= _NEW_TEXTURE;
2507 }
2508 out:
2509 _mesa_unlock_texture(ctx, texObj);
2510 }
2511
2512
2513 void GLAPIENTRY
2514 _mesa_TexSubImage2D( GLenum target, GLint level,
2515 GLint xoffset, GLint yoffset,
2516 GLsizei width, GLsizei height,
2517 GLenum format, GLenum type,
2518 const GLvoid *pixels )
2519 {
2520 GLsizei postConvWidth = width, postConvHeight = height;
2521 struct gl_texture_unit *texUnit;
2522 struct gl_texture_object *texObj;
2523 struct gl_texture_image *texImage;
2524 GET_CURRENT_CONTEXT(ctx);
2525 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2526
2527 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2528 _mesa_update_state(ctx);
2529
2530 #if FEATURE_convolve
2531 /* XXX should test internal format */
2532 if (_mesa_is_color_format(format)) {
2533 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2534 &postConvHeight);
2535 }
2536 #endif
2537
2538 if (subtexture_error_check(ctx, 2, target, level, xoffset, yoffset, 0,
2539 postConvWidth, postConvHeight, 1, format, type)) {
2540 return; /* error was detected */
2541 }
2542
2543 texUnit = get_current_tex_unit(ctx);
2544 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2545 _mesa_lock_texture(ctx, texObj);
2546 {
2547 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2548
2549 if (subtexture_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2550 postConvWidth, postConvHeight, 1, format, type,
2551 texImage)) {
2552 goto out; /* error was detected */
2553 }
2554
2555 if (width == 0 || height == 0)
2556 goto out; /* no-op, not an error */
2557
2558 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2559 xoffset += texImage->Border;
2560 yoffset += texImage->Border;
2561
2562 ASSERT(ctx->Driver.TexSubImage2D);
2563 (*ctx->Driver.TexSubImage2D)(ctx, target, level, xoffset, yoffset,
2564 width, height, format, type, pixels,
2565 &ctx->Unpack, texObj, texImage);
2566 ctx->NewState |= _NEW_TEXTURE;
2567 }
2568 out:
2569 _mesa_unlock_texture(ctx, texObj);
2570 }
2571
2572
2573
2574 void GLAPIENTRY
2575 _mesa_TexSubImage3D( GLenum target, GLint level,
2576 GLint xoffset, GLint yoffset, GLint zoffset,
2577 GLsizei width, GLsizei height, GLsizei depth,
2578 GLenum format, GLenum type,
2579 const GLvoid *pixels )
2580 {
2581 struct gl_texture_unit *texUnit;
2582 struct gl_texture_object *texObj;
2583 struct gl_texture_image *texImage;
2584 GET_CURRENT_CONTEXT(ctx);
2585 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2586
2587 if (ctx->NewState & _MESA_NEW_TRANSFER_STATE)
2588 _mesa_update_state(ctx);
2589
2590 if (subtexture_error_check(ctx, 3, target, level, xoffset, yoffset, zoffset,
2591 width, height, depth, format, type)) {
2592 return; /* error was detected */
2593 }
2594
2595 texUnit = get_current_tex_unit(ctx);
2596 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2597
2598 _mesa_lock_texture(ctx, texObj);
2599 {
2600 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2601
2602 if (subtexture_error_check2(ctx, 3, target, level, xoffset, yoffset, zoffset,
2603 width, height, depth, format, type, texImage)) {
2604 goto out; /* error was detected */
2605 }
2606
2607 if (width == 0 || height == 0 || height == 0)
2608 goto out; /* no-op, not an error */
2609
2610 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2611 xoffset += texImage->Border;
2612 yoffset += texImage->Border;
2613 zoffset += texImage->Border;
2614
2615 ASSERT(ctx->Driver.TexSubImage3D);
2616 (*ctx->Driver.TexSubImage3D)(ctx, target, level,
2617 xoffset, yoffset, zoffset,
2618 width, height, depth,
2619 format, type, pixels,
2620 &ctx->Unpack, texObj, texImage );
2621 ctx->NewState |= _NEW_TEXTURE;
2622 }
2623 out:
2624 _mesa_unlock_texture(ctx, texObj);
2625 }
2626
2627
2628
2629 void GLAPIENTRY
2630 _mesa_CopyTexImage1D( GLenum target, GLint level,
2631 GLenum internalFormat,
2632 GLint x, GLint y,
2633 GLsizei width, GLint border )
2634 {
2635 struct gl_texture_unit *texUnit;
2636 struct gl_texture_object *texObj;
2637 struct gl_texture_image *texImage;
2638 GLsizei postConvWidth = width;
2639 const GLuint face = _mesa_tex_target_to_face(target);
2640 GET_CURRENT_CONTEXT(ctx);
2641 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2642
2643 if (ctx->NewState & NEW_COPY_TEX_STATE)
2644 _mesa_update_state(ctx);
2645
2646 #if FEATURE_convolve
2647 if (_mesa_is_color_format(internalFormat)) {
2648 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2649 }
2650 #endif
2651
2652 if (copytexture_error_check(ctx, 1, target, level, internalFormat,
2653 postConvWidth, 1, border))
2654 return;
2655
2656 texUnit = get_current_tex_unit(ctx);
2657 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2658 _mesa_lock_texture(ctx, texObj);
2659 {
2660 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2661 if (!texImage) {
2662 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage1D");
2663 goto out;
2664 }
2665
2666 if (texImage->Data) {
2667 ctx->Driver.FreeTexImageData( ctx, texImage );
2668 }
2669
2670 ASSERT(texImage->Data == NULL);
2671
2672 clear_teximage_fields(texImage); /* not really needed, but helpful */
2673 _mesa_init_teximage_fields(ctx, target, texImage, postConvWidth, 1, 1,
2674 border, internalFormat);
2675
2676
2677 ASSERT(ctx->Driver.CopyTexImage1D);
2678 (*ctx->Driver.CopyTexImage1D)(ctx, target, level, internalFormat,
2679 x, y, width, border);
2680
2681 ASSERT(texImage->TexFormat);
2682
2683 update_fbo_texture(ctx, texObj, face, level);
2684
2685 /* state update */
2686 texObj->_Complete = GL_FALSE;
2687 ctx->NewState |= _NEW_TEXTURE;
2688 }
2689 out:
2690 _mesa_unlock_texture(ctx, texObj);
2691 }
2692
2693
2694
2695 void GLAPIENTRY
2696 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
2697 GLint x, GLint y, GLsizei width, GLsizei height,
2698 GLint border )
2699 {
2700 struct gl_texture_unit *texUnit;
2701 struct gl_texture_object *texObj;
2702 struct gl_texture_image *texImage;
2703 GLsizei postConvWidth = width, postConvHeight = height;
2704 const GLuint face = _mesa_tex_target_to_face(target);
2705 GET_CURRENT_CONTEXT(ctx);
2706 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2707
2708 if (ctx->NewState & NEW_COPY_TEX_STATE)
2709 _mesa_update_state(ctx);
2710
2711 #if FEATURE_convolve
2712 if (_mesa_is_color_format(internalFormat)) {
2713 _mesa_adjust_image_for_convolution(ctx, 2, &postConvWidth,
2714 &postConvHeight);
2715 }
2716 #endif
2717
2718 if (copytexture_error_check(ctx, 2, target, level, internalFormat,
2719 postConvWidth, postConvHeight, border))
2720 return;
2721
2722 texUnit = get_current_tex_unit(ctx);
2723 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2724
2725 _mesa_lock_texture(ctx, texObj);
2726 {
2727 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
2728
2729 if (!texImage) {
2730 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage2D");
2731 goto out;
2732 }
2733
2734 if (texImage->Data) {
2735 ctx->Driver.FreeTexImageData( ctx, texImage );
2736 }
2737
2738 ASSERT(texImage->Data == NULL);
2739
2740 clear_teximage_fields(texImage); /* not really needed, but helpful */
2741 _mesa_init_teximage_fields(ctx, target, texImage,
2742 postConvWidth, postConvHeight, 1,
2743 border, internalFormat);
2744
2745 ASSERT(ctx->Driver.CopyTexImage2D);
2746 (*ctx->Driver.CopyTexImage2D)(ctx, target, level, internalFormat,
2747 x, y, width, height, border);
2748
2749 ASSERT(texImage->TexFormat);
2750
2751 update_fbo_texture(ctx, texObj, face, level);
2752
2753 /* state update */
2754 texObj->_Complete = GL_FALSE;
2755 ctx->NewState |= _NEW_TEXTURE;
2756 }
2757 out:
2758 _mesa_unlock_texture(ctx, texObj);
2759 }
2760
2761
2762 void GLAPIENTRY
2763 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
2764 GLint xoffset, GLint x, GLint y, GLsizei width )
2765 {
2766 struct gl_texture_unit *texUnit;
2767 struct gl_texture_object *texObj;
2768 struct gl_texture_image *texImage;
2769 GLsizei postConvWidth = width;
2770 GLint yoffset = 0;
2771 GLsizei height = 1;
2772
2773 GET_CURRENT_CONTEXT(ctx);
2774 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2775
2776 if (ctx->NewState & NEW_COPY_TEX_STATE)
2777 _mesa_update_state(ctx);
2778
2779 if (copytexsubimage_error_check1(ctx, 1, target, level))
2780 return;
2781
2782 texUnit = get_current_tex_unit(ctx);
2783 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2784
2785 _mesa_lock_texture(ctx, texObj);
2786 {
2787 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2788
2789 #if FEATURE_convolve
2790 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2791 _mesa_adjust_image_for_convolution(ctx, 1, &postConvWidth, NULL);
2792 }
2793 #endif
2794
2795 if (copytexsubimage_error_check2(ctx, 1, target, level,
2796 xoffset, 0, 0, postConvWidth, 1,
2797 texImage))
2798 goto out;
2799
2800
2801 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2802 xoffset += texImage->Border;
2803
2804 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2805 &width, &height)) {
2806 ASSERT(ctx->Driver.CopyTexSubImage1D);
2807 ctx->Driver.CopyTexSubImage1D(ctx, target, level,
2808 xoffset, x, y, width);
2809 }
2810
2811 ctx->NewState |= _NEW_TEXTURE;
2812 }
2813 out:
2814 _mesa_unlock_texture(ctx, texObj);
2815 }
2816
2817
2818
2819 void GLAPIENTRY
2820 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
2821 GLint xoffset, GLint yoffset,
2822 GLint x, GLint y, GLsizei width, GLsizei height )
2823 {
2824 struct gl_texture_unit *texUnit;
2825 struct gl_texture_object *texObj;
2826 struct gl_texture_image *texImage;
2827 GLsizei postConvWidth = width, postConvHeight = height;
2828 GET_CURRENT_CONTEXT(ctx);
2829 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2830
2831 if (ctx->NewState & NEW_COPY_TEX_STATE)
2832 _mesa_update_state(ctx);
2833
2834 if (copytexsubimage_error_check1(ctx, 2, target, level))
2835 return;
2836
2837 texUnit = get_current_tex_unit(ctx);
2838 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2839
2840 _mesa_lock_texture(ctx, texObj);
2841 {
2842 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2843
2844 #if FEATURE_convolve
2845 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2846 _mesa_adjust_image_for_convolution(ctx, 2,
2847 &postConvWidth, &postConvHeight);
2848 }
2849 #endif
2850
2851 if (copytexsubimage_error_check2(ctx, 2, target, level, xoffset, yoffset, 0,
2852 postConvWidth, postConvHeight, texImage))
2853 goto out;
2854
2855 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2856 xoffset += texImage->Border;
2857 yoffset += texImage->Border;
2858
2859 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2860 &width, &height)) {
2861 ASSERT(ctx->Driver.CopyTexSubImage2D);
2862 ctx->Driver.CopyTexSubImage2D(ctx, target, level,
2863 xoffset, yoffset, x, y, width, height);
2864 }
2865
2866 ctx->NewState |= _NEW_TEXTURE;
2867 }
2868 out:
2869 _mesa_unlock_texture(ctx, texObj);
2870 }
2871
2872
2873
2874 void GLAPIENTRY
2875 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
2876 GLint xoffset, GLint yoffset, GLint zoffset,
2877 GLint x, GLint y, GLsizei width, GLsizei height )
2878 {
2879 struct gl_texture_unit *texUnit;
2880 struct gl_texture_object *texObj;
2881 struct gl_texture_image *texImage;
2882 GLsizei postConvWidth = width, postConvHeight = height;
2883 GET_CURRENT_CONTEXT(ctx);
2884 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
2885
2886 if (ctx->NewState & NEW_COPY_TEX_STATE)
2887 _mesa_update_state(ctx);
2888
2889 if (copytexsubimage_error_check1(ctx, 3, target, level))
2890 return;
2891
2892 texUnit = get_current_tex_unit(ctx);
2893 texObj = _mesa_select_tex_object(ctx, texUnit, target);
2894
2895 _mesa_lock_texture(ctx, texObj);
2896 {
2897 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2898
2899 #if FEATURE_convolve
2900 if (texImage && _mesa_is_color_format(texImage->InternalFormat)) {
2901 _mesa_adjust_image_for_convolution(ctx, 2,
2902 &postConvWidth, &postConvHeight);
2903 }
2904 #endif
2905
2906 if (copytexsubimage_error_check2(ctx, 3, target, level, xoffset, yoffset,
2907 zoffset, postConvWidth, postConvHeight,
2908 texImage))
2909 goto out;
2910
2911 /* If we have a border, xoffset=-1 is legal. Bias by border width */
2912 xoffset += texImage->Border;
2913 yoffset += texImage->Border;
2914 zoffset += texImage->Border;
2915
2916 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
2917 &width, &height)) {
2918 ASSERT(ctx->Driver.CopyTexSubImage3D);
2919 ctx->Driver.CopyTexSubImage3D(ctx, target, level,
2920 xoffset, yoffset, zoffset,
2921 x, y, width, height);
2922 }
2923
2924 ctx->NewState |= _NEW_TEXTURE;
2925 }
2926 out:
2927 _mesa_unlock_texture(ctx, texObj);
2928 }
2929
2930
2931
2932
2933 /**********************************************************************/
2934 /****** Compressed Textures ******/
2935 /**********************************************************************/
2936
2937
2938 /**
2939 * Error checking for glCompressedTexImage[123]D().
2940 * \return error code or GL_NO_ERROR.
2941 */
2942 static GLenum
2943 compressed_texture_error_check(GLcontext *ctx, GLint dimensions,
2944 GLenum target, GLint level,
2945 GLenum internalFormat, GLsizei width,
2946 GLsizei height, GLsizei depth, GLint border,
2947 GLsizei imageSize)
2948 {
2949 GLint expectedSize, maxLevels = 0, maxTextureSize;
2950
2951 if (dimensions == 1) {
2952 /* 1D compressed textures not allowed */
2953 return GL_INVALID_ENUM;
2954 }
2955 else if (dimensions == 2) {
2956 if (target == GL_PROXY_TEXTURE_2D) {
2957 maxLevels = ctx->Const.MaxTextureLevels;
2958 }
2959 else if (target == GL_TEXTURE_2D) {
2960 maxLevels = ctx->Const.MaxTextureLevels;
2961 }
2962 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
2963 if (!ctx->Extensions.ARB_texture_cube_map)
2964 return GL_INVALID_ENUM; /*target*/
2965 maxLevels = ctx->Const.MaxCubeTextureLevels;
2966 }
2967 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
2968 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
2969 if (!ctx->Extensions.ARB_texture_cube_map)
2970 return GL_INVALID_ENUM; /*target*/
2971 maxLevels = ctx->Const.MaxCubeTextureLevels;
2972 }
2973 else {
2974 return GL_INVALID_ENUM; /*target*/
2975 }
2976 }
2977 else if (dimensions == 3) {
2978 /* 3D compressed textures not allowed */
2979 return GL_INVALID_ENUM;
2980 }
2981
2982 maxTextureSize = 1 << (maxLevels - 1);
2983
2984 /* This will detect any invalid internalFormat value */
2985 if (!is_compressed_format(ctx, internalFormat))
2986 return GL_INVALID_ENUM;
2987
2988 /* This should really never fail */
2989 if (_mesa_base_tex_format(ctx, internalFormat) < 0)
2990 return GL_INVALID_ENUM;
2991
2992 if (border != 0)
2993 return GL_INVALID_VALUE;
2994
2995 /*
2996 * XXX We should probably use the proxy texture error check function here.
2997 */
2998 if (width < 1 || width > maxTextureSize ||
2999 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(width)))
3000 return GL_INVALID_VALUE;
3001
3002 if ((height < 1 || height > maxTextureSize ||
3003 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(height)))
3004 && dimensions > 1)
3005 return GL_INVALID_VALUE;
3006
3007 if ((depth < 1 || depth > maxTextureSize ||
3008 (!ctx->Extensions.ARB_texture_non_power_of_two && !_mesa_is_pow_two(depth)))
3009 && dimensions > 2)
3010 return GL_INVALID_VALUE;
3011
3012 /* For cube map, width must equal height */
3013 if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3014 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB && width != height)
3015 return GL_INVALID_VALUE;
3016
3017 if (level < 0 || level >= maxLevels)
3018 return GL_INVALID_VALUE;
3019
3020 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3021 depth, internalFormat);
3022 if (expectedSize != imageSize)
3023 return GL_INVALID_VALUE;
3024
3025 #if FEATURE_EXT_texture_sRGB
3026 if ((internalFormat == GL_COMPRESSED_SRGB_S3TC_DXT1_EXT ||
3027 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT ||
3028 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT ||
3029 internalFormat == GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT)
3030 && border != 0) {
3031 return GL_INVALID_OPERATION;
3032 }
3033 #endif
3034
3035 return GL_NO_ERROR;
3036 }
3037
3038
3039 /**
3040 * Error checking for glCompressedTexSubImage[123]D().
3041 * \warning There are some bad assumptions here about the size of compressed
3042 * texture tiles (multiple of 4) used to test the validity of the
3043 * offset and size parameters.
3044 * \return error code or GL_NO_ERROR.
3045 */
3046 static GLenum
3047 compressed_subtexture_error_check(GLcontext *ctx, GLint dimensions,
3048 GLenum target, GLint level,
3049 GLint xoffset, GLint yoffset, GLint zoffset,
3050 GLsizei width, GLsizei height, GLsizei depth,
3051 GLenum format, GLsizei imageSize)
3052 {
3053 GLint expectedSize, maxLevels = 0, maxTextureSize;
3054 (void) zoffset;
3055
3056 if (dimensions == 1) {
3057 /* 1D compressed textures not allowed */
3058 return GL_INVALID_ENUM;
3059 }
3060 else if (dimensions == 2) {
3061 if (target == GL_PROXY_TEXTURE_2D) {
3062 maxLevels = ctx->Const.MaxTextureLevels;
3063 }
3064 else if (target == GL_TEXTURE_2D) {
3065 maxLevels = ctx->Const.MaxTextureLevels;
3066 }
3067 else if (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB) {
3068 if (!ctx->Extensions.ARB_texture_cube_map)
3069 return GL_INVALID_ENUM; /*target*/
3070 maxLevels = ctx->Const.MaxCubeTextureLevels;
3071 }
3072 else if (target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3073 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB) {
3074 if (!ctx->Extensions.ARB_texture_cube_map)
3075 return GL_INVALID_ENUM; /*target*/
3076 maxLevels = ctx->Const.MaxCubeTextureLevels;
3077 }
3078 else {
3079 return GL_INVALID_ENUM; /*target*/
3080 }
3081 }
3082 else if (dimensions == 3) {
3083 /* 3D compressed textures not allowed */
3084 return GL_INVALID_ENUM;
3085 }
3086
3087 maxTextureSize = 1 << (maxLevels - 1);
3088
3089 /* this will catch any invalid compressed format token */
3090 if (!is_compressed_format(ctx, format))
3091 return GL_INVALID_ENUM;
3092
3093 if (width < 1 || width > maxTextureSize)
3094 return GL_INVALID_VALUE;
3095
3096 if ((height < 1 || height > maxTextureSize)
3097 && dimensions > 1)
3098 return GL_INVALID_VALUE;
3099
3100 if (level < 0 || level >= maxLevels)
3101 return GL_INVALID_VALUE;
3102
3103 /* XXX these tests are specific to the compressed format.
3104 * this code should be generalized in some way.
3105 */
3106 if ((xoffset & 3) != 0 || (yoffset & 3) != 0)
3107 return GL_INVALID_VALUE;
3108
3109 if ((width & 3) != 0 && width != 2 && width != 1)
3110 return GL_INVALID_VALUE;
3111
3112 if ((height & 3) != 0 && height != 2 && height != 1)
3113 return GL_INVALID_VALUE;
3114
3115 expectedSize = _mesa_compressed_texture_size_glenum(ctx, width, height,
3116 depth, format);
3117 if (expectedSize != imageSize)
3118 return GL_INVALID_VALUE;
3119
3120 return GL_NO_ERROR;
3121 }
3122
3123
3124
3125 void GLAPIENTRY
3126 _mesa_CompressedTexImage1DARB(GLenum target, GLint level,
3127 GLenum internalFormat, GLsizei width,
3128 GLint border, GLsizei imageSize,
3129 const GLvoid *data)
3130 {
3131 GET_CURRENT_CONTEXT(ctx);
3132 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3133
3134 if (target == GL_TEXTURE_1D) {
3135 /* non-proxy target */
3136 struct gl_texture_unit *texUnit;
3137 struct gl_texture_object *texObj;
3138 struct gl_texture_image *texImage;
3139 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3140 internalFormat, width, 1, 1, border, imageSize);
3141 if (error) {
3142 _mesa_error(ctx, error, "glCompressedTexImage1D");
3143 return;
3144 }
3145
3146 texUnit = get_current_tex_unit(ctx);
3147 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3148
3149 _mesa_lock_texture(ctx, texObj);
3150 {
3151 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3152 if (!texImage) {
3153 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage1D");
3154 goto out;
3155 }
3156
3157 if (texImage->Data) {
3158 ctx->Driver.FreeTexImageData( ctx, texImage );
3159 }
3160 ASSERT(texImage->Data == NULL);
3161
3162 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3163 border, internalFormat);
3164
3165 ASSERT(ctx->Driver.CompressedTexImage1D);
3166 (*ctx->Driver.CompressedTexImage1D)(ctx, target, level,
3167 internalFormat, width, border,
3168 imageSize, data,
3169 texObj, texImage);
3170
3171 /* state update */
3172 texObj->_Complete = GL_FALSE;
3173 ctx->NewState |= _NEW_TEXTURE;
3174 }
3175 out:
3176 _mesa_unlock_texture(ctx, texObj);
3177 }
3178 else if (target == GL_PROXY_TEXTURE_1D) {
3179 /* Proxy texture: check for errors and update proxy state */
3180 GLenum error = compressed_texture_error_check(ctx, 1, target, level,
3181 internalFormat, width, 1, 1, border, imageSize);
3182 if (!error) {
3183 ASSERT(ctx->Driver.TestProxyTexImage);
3184 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3185 internalFormat, GL_NONE, GL_NONE,
3186 width, 1, 1, border);
3187 }
3188 if (error) {
3189 /* if error, clear all proxy texture image parameters */
3190 struct gl_texture_image *texImage;
3191 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3192 if (texImage)
3193 clear_teximage_fields(texImage);
3194 }
3195 else {
3196 /* store the teximage parameters */
3197 struct gl_texture_unit *texUnit;
3198 struct gl_texture_object *texObj;
3199 struct gl_texture_image *texImage;
3200 texUnit = get_current_tex_unit(ctx);
3201 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3202
3203 _mesa_lock_texture(ctx, texObj);
3204 {
3205 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3206 _mesa_init_teximage_fields(ctx, target, texImage, width, 1, 1,
3207 border, internalFormat);
3208 }
3209 _mesa_unlock_texture(ctx, texObj);
3210 }
3211 }
3212 else {
3213 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage1D(target)");
3214 return;
3215 }
3216 }
3217
3218
3219 void GLAPIENTRY
3220 _mesa_CompressedTexImage2DARB(GLenum target, GLint level,
3221 GLenum internalFormat, GLsizei width,
3222 GLsizei height, GLint border, GLsizei imageSize,
3223 const GLvoid *data)
3224 {
3225 GET_CURRENT_CONTEXT(ctx);
3226 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3227
3228 if (target == GL_TEXTURE_2D ||
3229 (ctx->Extensions.ARB_texture_cube_map &&
3230 target >= GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB &&
3231 target <= GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB)) {
3232 /* non-proxy target */
3233 struct gl_texture_unit *texUnit;
3234 struct gl_texture_object *texObj;
3235 struct gl_texture_image *texImage;
3236 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3237 internalFormat, width, height, 1, border, imageSize);
3238 if (error) {
3239 _mesa_error(ctx, error, "glCompressedTexImage2D");
3240 return;
3241 }
3242
3243 texUnit = get_current_tex_unit(ctx);
3244 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3245
3246 _mesa_lock_texture(ctx, texObj);
3247 {
3248 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3249 if (!texImage) {
3250 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage2D");
3251 goto out;
3252 }
3253
3254 if (texImage->Data) {
3255 ctx->Driver.FreeTexImageData( ctx, texImage );
3256 }
3257 ASSERT(texImage->Data == NULL);
3258
3259 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3260 border, internalFormat);
3261
3262 ASSERT(ctx->Driver.CompressedTexImage2D);
3263 (*ctx->Driver.CompressedTexImage2D)(ctx, target, level,
3264 internalFormat, width, height,
3265 border, imageSize, data,
3266 texObj, texImage);
3267
3268 /* state update */
3269 texObj->_Complete = GL_FALSE;
3270 ctx->NewState |= _NEW_TEXTURE;
3271 }
3272 out:
3273 _mesa_unlock_texture(ctx, texObj);
3274 }
3275 else if (target == GL_PROXY_TEXTURE_2D ||
3276 (target == GL_PROXY_TEXTURE_CUBE_MAP_ARB &&
3277 ctx->Extensions.ARB_texture_cube_map)) {
3278 /* Proxy texture: check for errors and update proxy state */
3279 GLenum error = compressed_texture_error_check(ctx, 2, target, level,
3280 internalFormat, width, height, 1, border, imageSize);
3281 if (!error) {
3282 ASSERT(ctx->Driver.TestProxyTexImage);
3283 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3284 internalFormat, GL_NONE, GL_NONE,
3285 width, height, 1, border);
3286 }
3287 if (error) {
3288 /* if error, clear all proxy texture image parameters */
3289 struct gl_texture_image *texImage;
3290 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3291 if (texImage)
3292 clear_teximage_fields(texImage);
3293 }
3294 else {
3295 /* store the teximage parameters */
3296 struct gl_texture_unit *texUnit;
3297 struct gl_texture_object *texObj;
3298 struct gl_texture_image *texImage;
3299 texUnit = get_current_tex_unit(ctx);
3300 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3301
3302 _mesa_lock_texture(ctx, texObj);
3303 {
3304 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3305 _mesa_init_teximage_fields(ctx, target, texImage, width, height, 1,
3306 border, internalFormat);
3307 }
3308 _mesa_unlock_texture(ctx, texObj);
3309 }
3310 }
3311 else {
3312 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage2D(target)");
3313 return;
3314 }
3315 }
3316
3317
3318 void GLAPIENTRY
3319 _mesa_CompressedTexImage3DARB(GLenum target, GLint level,
3320 GLenum internalFormat, GLsizei width,
3321 GLsizei height, GLsizei depth, GLint border,
3322 GLsizei imageSize, const GLvoid *data)
3323 {
3324 GET_CURRENT_CONTEXT(ctx);
3325 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3326
3327 if (target == GL_TEXTURE_3D) {
3328 /* non-proxy target */
3329 struct gl_texture_unit *texUnit;
3330 struct gl_texture_object *texObj;
3331 struct gl_texture_image *texImage;
3332 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3333 internalFormat, width, height, depth, border, imageSize);
3334 if (error) {
3335 _mesa_error(ctx, error, "glCompressedTexImage3D");
3336 return;
3337 }
3338
3339 texUnit = get_current_tex_unit(ctx);
3340 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3341 _mesa_lock_texture(ctx, texObj);
3342 {
3343 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3344 if (!texImage) {
3345 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCompressedTexImage3D");
3346 goto out;
3347 }
3348
3349 if (texImage->Data) {
3350 ctx->Driver.FreeTexImageData( ctx, texImage );
3351 }
3352 ASSERT(texImage->Data == NULL);
3353
3354 _mesa_init_teximage_fields(ctx, target, texImage, width, height, depth,
3355 border, internalFormat);
3356
3357 ASSERT(ctx->Driver.CompressedTexImage3D);
3358 (*ctx->Driver.CompressedTexImage3D)(ctx, target, level,
3359 internalFormat,
3360 width, height, depth,
3361 border, imageSize, data,
3362 texObj, texImage);
3363
3364 /* state update */
3365 texObj->_Complete = GL_FALSE;
3366 ctx->NewState |= _NEW_TEXTURE;
3367 }
3368 out:
3369 _mesa_unlock_texture(ctx, texObj);
3370 }
3371 else if (target == GL_PROXY_TEXTURE_3D) {
3372 /* Proxy texture: check for errors and update proxy state */
3373 GLenum error = compressed_texture_error_check(ctx, 3, target, level,
3374 internalFormat, width, height, depth, border, imageSize);
3375 if (!error) {
3376 ASSERT(ctx->Driver.TestProxyTexImage);
3377 error = !(*ctx->Driver.TestProxyTexImage)(ctx, target, level,
3378 internalFormat, GL_NONE, GL_NONE,
3379 width, height, depth, border);
3380 }
3381 if (error) {
3382 /* if error, clear all proxy texture image parameters */
3383 struct gl_texture_image *texImage;
3384 texImage = _mesa_get_proxy_tex_image(ctx, target, level);
3385 if (texImage)
3386 clear_teximage_fields(texImage);
3387 }
3388 else {
3389 /* store the teximage parameters */
3390 struct gl_texture_unit *texUnit;
3391 struct gl_texture_object *texObj;
3392 struct gl_texture_image *texImage;
3393 texUnit = get_current_tex_unit(ctx);
3394 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3395 _mesa_lock_texture(ctx, texObj);
3396 {
3397 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3398 _mesa_init_teximage_fields(ctx, target, texImage, width, height,
3399 depth, border, internalFormat);
3400 }
3401 _mesa_unlock_texture(ctx, texObj);
3402 }
3403 }
3404 else {
3405 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage3D(target)");
3406 return;
3407 }
3408 }
3409
3410
3411 void GLAPIENTRY
3412 _mesa_CompressedTexSubImage1DARB(GLenum target, GLint level, GLint xoffset,
3413 GLsizei width, GLenum format,
3414 GLsizei imageSize, const GLvoid *data)
3415 {
3416 struct gl_texture_unit *texUnit;
3417 struct gl_texture_object *texObj;
3418 struct gl_texture_image *texImage;
3419 GLenum error;
3420 GET_CURRENT_CONTEXT(ctx);
3421 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3422
3423 error = compressed_subtexture_error_check(ctx, 1, target, level,
3424 xoffset, 0, 0, /* pos */
3425 width, 1, 1, /* size */
3426 format, imageSize);
3427 if (error) {
3428 _mesa_error(ctx, error, "glCompressedTexSubImage1D");
3429 return;
3430 }
3431
3432 texUnit = get_current_tex_unit(ctx);
3433 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3434 _mesa_lock_texture(ctx, texObj);
3435 {
3436 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3437 assert(texImage);
3438
3439 if ((GLint) format != texImage->InternalFormat) {
3440 _mesa_error(ctx, GL_INVALID_OPERATION,
3441 "glCompressedTexSubImage1D(format)");
3442 goto out;
3443 }
3444
3445 if ((width == 1 || width == 2) && (GLuint) width != texImage->Width) {
3446 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage1D(width)");
3447 goto out;
3448 }
3449
3450 if (width == 0)
3451 goto out; /* no-op, not an error */
3452
3453 if (ctx->Driver.CompressedTexSubImage1D) {
3454 (*ctx->Driver.CompressedTexSubImage1D)(ctx, target, level,
3455 xoffset, width,
3456 format, imageSize, data,
3457 texObj, texImage);
3458 }
3459 ctx->NewState |= _NEW_TEXTURE;
3460 }
3461 out:
3462 _mesa_unlock_texture(ctx, texObj);
3463 }
3464
3465
3466 void GLAPIENTRY
3467 _mesa_CompressedTexSubImage2DARB(GLenum target, GLint level, GLint xoffset,
3468 GLint yoffset, GLsizei width, GLsizei height,
3469 GLenum format, GLsizei imageSize,
3470 const GLvoid *data)
3471 {
3472 struct gl_texture_unit *texUnit;
3473 struct gl_texture_object *texObj;
3474 struct gl_texture_image *texImage;
3475 GLenum error;
3476 GET_CURRENT_CONTEXT(ctx);
3477 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3478
3479 error = compressed_subtexture_error_check(ctx, 2, target, level,
3480 xoffset, yoffset, 0, /* pos */
3481 width, height, 1, /* size */
3482 format, imageSize);
3483 if (error) {
3484 /* XXX proxy target? */
3485 _mesa_error(ctx, error, "glCompressedTexSubImage2D");
3486 return;
3487 }
3488
3489 texUnit = get_current_tex_unit(ctx);
3490 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3491 _mesa_lock_texture(ctx, texObj);
3492 {
3493 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3494 assert(texImage);
3495
3496 if ((GLint) format != texImage->InternalFormat) {
3497 _mesa_error(ctx, GL_INVALID_OPERATION,
3498 "glCompressedTexSubImage2D(format)");
3499 goto out;
3500 }
3501
3502 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3503 ((height == 1 || height == 2) && (GLuint) height != texImage->Height)) {
3504 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage2D(size)");
3505 goto out;
3506 }
3507
3508 if (width == 0 || height == 0)
3509 goto out; /* no-op, not an error */
3510
3511 if (ctx->Driver.CompressedTexSubImage2D) {
3512 (*ctx->Driver.CompressedTexSubImage2D)(ctx, target, level,
3513 xoffset, yoffset, width, height,
3514 format, imageSize, data,
3515 texObj, texImage);
3516 }
3517 ctx->NewState |= _NEW_TEXTURE;
3518 }
3519 out:
3520 _mesa_unlock_texture(ctx, texObj);
3521 }
3522
3523
3524 void GLAPIENTRY
3525 _mesa_CompressedTexSubImage3DARB(GLenum target, GLint level, GLint xoffset,
3526 GLint yoffset, GLint zoffset, GLsizei width,
3527 GLsizei height, GLsizei depth, GLenum format,
3528 GLsizei imageSize, const GLvoid *data)
3529 {
3530 struct gl_texture_unit *texUnit;
3531 struct gl_texture_object *texObj;
3532 struct gl_texture_image *texImage;
3533 GLenum error;
3534 GET_CURRENT_CONTEXT(ctx);
3535 ASSERT_OUTSIDE_BEGIN_END_AND_FLUSH(ctx);
3536
3537 error = compressed_subtexture_error_check(ctx, 3, target, level,
3538 xoffset, yoffset, zoffset,/*pos*/
3539 width, height, depth, /*size*/
3540 format, imageSize);
3541 if (error) {
3542 _mesa_error(ctx, error, "glCompressedTexSubImage3D");
3543 return;
3544 }
3545
3546 texUnit = get_current_tex_unit(ctx);
3547 texObj = _mesa_select_tex_object(ctx, texUnit, target);
3548 _mesa_lock_texture(ctx, texObj);
3549 {
3550 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3551 assert(texImage);
3552
3553 if ((GLint) format != texImage->InternalFormat) {
3554 _mesa_error(ctx, GL_INVALID_OPERATION,
3555 "glCompressedTexSubImage3D(format)");
3556 goto out;
3557 }
3558
3559 if (((width == 1 || width == 2) && (GLuint) width != texImage->Width) ||
3560 ((height == 1 || height == 2) && (GLuint) height != texImage->Height) ||
3561 ((depth == 1 || depth == 2) && (GLuint) depth != texImage->Depth)) {
3562 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexSubImage3D(size)");
3563 goto out;
3564 }
3565
3566 if (width == 0 || height == 0 || depth == 0)
3567 goto out; /* no-op, not an error */
3568
3569 if (ctx->Driver.CompressedTexSubImage3D) {
3570 (*ctx->Driver.CompressedTexSubImage3D)(ctx, target, level,
3571 xoffset, yoffset, zoffset,
3572 width, height, depth,
3573 format, imageSize, data,
3574 texObj, texImage);
3575 }
3576 ctx->NewState |= _NEW_TEXTURE;
3577 }
3578 out:
3579 _mesa_unlock_texture(ctx, texObj);
3580 }
3581
3582