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mesa: Drop manual checks for outside begin/end.
[mesa.git] / src / mesa / main / teximage.c
1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (C) 2009 VMware, Inc. All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
13 *
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
16 *
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
21 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
22 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
23 */
24
25
26 /**
27 * \file teximage.c
28 * Texture image-related functions.
29 */
30
31 #include <stdbool.h>
32 #include "glheader.h"
33 #include "bufferobj.h"
34 #include "context.h"
35 #include "enums.h"
36 #include "fbobject.h"
37 #include "framebuffer.h"
38 #include "hash.h"
39 #include "image.h"
40 #include "imports.h"
41 #include "macros.h"
42 #include "mfeatures.h"
43 #include "state.h"
44 #include "texcompress.h"
45 #include "texcompress_cpal.h"
46 #include "teximage.h"
47 #include "texobj.h"
48 #include "texstate.h"
49 #include "mtypes.h"
50 #include "glformats.h"
51
52
53 /**
54 * State changes which we care about for glCopyTex[Sub]Image() calls.
55 * In particular, we care about pixel transfer state and buffer state
56 * (such as glReadBuffer to make sure we read from the right renderbuffer).
57 */
58 #define NEW_COPY_TEX_STATE (_NEW_BUFFERS | _NEW_PIXEL)
59
60
61
62 /**
63 * Return the simple base format for a given internal texture format.
64 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
65 *
66 * \param ctx GL context.
67 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
68 *
69 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
70 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
71 *
72 * This is the format which is used during texture application (i.e. the
73 * texture format and env mode determine the arithmetic used.
74 */
75 GLint
76 _mesa_base_tex_format( struct gl_context *ctx, GLint internalFormat )
77 {
78 switch (internalFormat) {
79 case GL_ALPHA:
80 case GL_ALPHA4:
81 case GL_ALPHA8:
82 case GL_ALPHA12:
83 case GL_ALPHA16:
84 return (ctx->API != API_OPENGL_CORE) ? GL_ALPHA : -1;
85 case 1:
86 case GL_LUMINANCE:
87 case GL_LUMINANCE4:
88 case GL_LUMINANCE8:
89 case GL_LUMINANCE12:
90 case GL_LUMINANCE16:
91 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE : -1;
92 case 2:
93 case GL_LUMINANCE_ALPHA:
94 case GL_LUMINANCE4_ALPHA4:
95 case GL_LUMINANCE6_ALPHA2:
96 case GL_LUMINANCE8_ALPHA8:
97 case GL_LUMINANCE12_ALPHA4:
98 case GL_LUMINANCE12_ALPHA12:
99 case GL_LUMINANCE16_ALPHA16:
100 return (ctx->API != API_OPENGL_CORE) ? GL_LUMINANCE_ALPHA : -1;
101 case GL_INTENSITY:
102 case GL_INTENSITY4:
103 case GL_INTENSITY8:
104 case GL_INTENSITY12:
105 case GL_INTENSITY16:
106 return (ctx->API != API_OPENGL_CORE) ? GL_INTENSITY : -1;
107 case 3:
108 return (ctx->API != API_OPENGL_CORE) ? GL_RGB : -1;
109 case GL_RGB:
110 case GL_R3_G3_B2:
111 case GL_RGB4:
112 case GL_RGB5:
113 case GL_RGB8:
114 case GL_RGB10:
115 case GL_RGB12:
116 case GL_RGB16:
117 return GL_RGB;
118 case 4:
119 return (ctx->API != API_OPENGL_CORE) ? GL_RGBA : -1;
120 case GL_RGBA:
121 case GL_RGBA2:
122 case GL_RGBA4:
123 case GL_RGB5_A1:
124 case GL_RGBA8:
125 case GL_RGB10_A2:
126 case GL_RGBA12:
127 case GL_RGBA16:
128 return GL_RGBA;
129 default:
130 ; /* fallthrough */
131 }
132
133 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
134 */
135 if (_mesa_is_gles(ctx)) {
136 switch (internalFormat) {
137 case GL_BGRA:
138 return GL_RGBA;
139 default:
140 ; /* fallthrough */
141 }
142 }
143
144 if (ctx->Extensions.ARB_ES2_compatibility) {
145 switch (internalFormat) {
146 case GL_RGB565:
147 return GL_RGB;
148 default:
149 ; /* fallthrough */
150 }
151 }
152
153 if (ctx->Extensions.ARB_depth_texture) {
154 switch (internalFormat) {
155 case GL_DEPTH_COMPONENT:
156 case GL_DEPTH_COMPONENT16:
157 case GL_DEPTH_COMPONENT24:
158 case GL_DEPTH_COMPONENT32:
159 return GL_DEPTH_COMPONENT;
160 default:
161 ; /* fallthrough */
162 }
163 }
164
165 switch (internalFormat) {
166 case GL_COMPRESSED_ALPHA:
167 return GL_ALPHA;
168 case GL_COMPRESSED_LUMINANCE:
169 return GL_LUMINANCE;
170 case GL_COMPRESSED_LUMINANCE_ALPHA:
171 return GL_LUMINANCE_ALPHA;
172 case GL_COMPRESSED_INTENSITY:
173 return GL_INTENSITY;
174 case GL_COMPRESSED_RGB:
175 return GL_RGB;
176 case GL_COMPRESSED_RGBA:
177 return GL_RGBA;
178 default:
179 ; /* fallthrough */
180 }
181
182 if (ctx->Extensions.TDFX_texture_compression_FXT1) {
183 switch (internalFormat) {
184 case GL_COMPRESSED_RGB_FXT1_3DFX:
185 return GL_RGB;
186 case GL_COMPRESSED_RGBA_FXT1_3DFX:
187 return GL_RGBA;
188 default:
189 ; /* fallthrough */
190 }
191 }
192
193 if (ctx->Extensions.EXT_texture_compression_s3tc) {
194 switch (internalFormat) {
195 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
196 return GL_RGB;
197 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
198 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
199 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
200 return GL_RGBA;
201 default:
202 ; /* fallthrough */
203 }
204 }
205
206 /* GL_COMPRESSED_RGBA_S3TC_DXT3_ANGLE && GL_COMPRESSED_RGBA_S3TC_DXT5_ANGLE */
207 if (ctx->API == API_OPENGLES2 &&
208 ctx->Extensions.ANGLE_texture_compression_dxt) {
209 switch (internalFormat) {
210 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
211 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
212 return GL_RGBA;
213 default:
214 ; /* fallthrough */
215 }
216 }
217
218 if (ctx->Extensions.S3_s3tc) {
219 switch (internalFormat) {
220 case GL_RGB_S3TC:
221 case GL_RGB4_S3TC:
222 return GL_RGB;
223 case GL_RGBA_S3TC:
224 case GL_RGBA4_S3TC:
225 return GL_RGBA;
226 default:
227 ; /* fallthrough */
228 }
229 }
230
231 if (ctx->Extensions.MESA_ycbcr_texture) {
232 if (internalFormat == GL_YCBCR_MESA)
233 return GL_YCBCR_MESA;
234 }
235
236 if (ctx->Extensions.ARB_texture_float) {
237 switch (internalFormat) {
238 case GL_ALPHA16F_ARB:
239 case GL_ALPHA32F_ARB:
240 return GL_ALPHA;
241 case GL_RGBA16F_ARB:
242 case GL_RGBA32F_ARB:
243 return GL_RGBA;
244 case GL_RGB16F_ARB:
245 case GL_RGB32F_ARB:
246 return GL_RGB;
247 case GL_INTENSITY16F_ARB:
248 case GL_INTENSITY32F_ARB:
249 return GL_INTENSITY;
250 case GL_LUMINANCE16F_ARB:
251 case GL_LUMINANCE32F_ARB:
252 return GL_LUMINANCE;
253 case GL_LUMINANCE_ALPHA16F_ARB:
254 case GL_LUMINANCE_ALPHA32F_ARB:
255 return GL_LUMINANCE_ALPHA;
256 default:
257 ; /* fallthrough */
258 }
259 }
260
261 if (ctx->Extensions.ATI_envmap_bumpmap) {
262 switch (internalFormat) {
263 case GL_DUDV_ATI:
264 case GL_DU8DV8_ATI:
265 return GL_DUDV_ATI;
266 default:
267 ; /* fallthrough */
268 }
269 }
270
271 if (ctx->Extensions.EXT_texture_snorm) {
272 switch (internalFormat) {
273 case GL_RED_SNORM:
274 case GL_R8_SNORM:
275 case GL_R16_SNORM:
276 return GL_RED;
277 case GL_RG_SNORM:
278 case GL_RG8_SNORM:
279 case GL_RG16_SNORM:
280 return GL_RG;
281 case GL_RGB_SNORM:
282 case GL_RGB8_SNORM:
283 case GL_RGB16_SNORM:
284 return GL_RGB;
285 case GL_RGBA_SNORM:
286 case GL_RGBA8_SNORM:
287 case GL_RGBA16_SNORM:
288 return GL_RGBA;
289 case GL_ALPHA_SNORM:
290 case GL_ALPHA8_SNORM:
291 case GL_ALPHA16_SNORM:
292 return GL_ALPHA;
293 case GL_LUMINANCE_SNORM:
294 case GL_LUMINANCE8_SNORM:
295 case GL_LUMINANCE16_SNORM:
296 return GL_LUMINANCE;
297 case GL_LUMINANCE_ALPHA_SNORM:
298 case GL_LUMINANCE8_ALPHA8_SNORM:
299 case GL_LUMINANCE16_ALPHA16_SNORM:
300 return GL_LUMINANCE_ALPHA;
301 case GL_INTENSITY_SNORM:
302 case GL_INTENSITY8_SNORM:
303 case GL_INTENSITY16_SNORM:
304 return GL_INTENSITY;
305 default:
306 ; /* fallthrough */
307 }
308 }
309
310 if (ctx->Extensions.EXT_packed_depth_stencil) {
311 switch (internalFormat) {
312 case GL_DEPTH_STENCIL_EXT:
313 case GL_DEPTH24_STENCIL8_EXT:
314 return GL_DEPTH_STENCIL_EXT;
315 default:
316 ; /* fallthrough */
317 }
318 }
319
320 if (ctx->Extensions.EXT_texture_sRGB) {
321 switch (internalFormat) {
322 case GL_SRGB_EXT:
323 case GL_SRGB8_EXT:
324 case GL_COMPRESSED_SRGB_EXT:
325 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
326 return GL_RGB;
327 case GL_SRGB_ALPHA_EXT:
328 case GL_SRGB8_ALPHA8_EXT:
329 case GL_COMPRESSED_SRGB_ALPHA_EXT:
330 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
331 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
332 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
333 return GL_RGBA;
334 case GL_SLUMINANCE_ALPHA_EXT:
335 case GL_SLUMINANCE8_ALPHA8_EXT:
336 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
337 return GL_LUMINANCE_ALPHA;
338 case GL_SLUMINANCE_EXT:
339 case GL_SLUMINANCE8_EXT:
340 case GL_COMPRESSED_SLUMINANCE_EXT:
341 return GL_LUMINANCE;
342 default:
343 ; /* fallthrough */
344 }
345 }
346
347 if (ctx->Version >= 30 ||
348 ctx->Extensions.EXT_texture_integer) {
349 switch (internalFormat) {
350 case GL_RGBA8UI_EXT:
351 case GL_RGBA16UI_EXT:
352 case GL_RGBA32UI_EXT:
353 case GL_RGBA8I_EXT:
354 case GL_RGBA16I_EXT:
355 case GL_RGBA32I_EXT:
356 case GL_RGB10_A2UI:
357 return GL_RGBA;
358 case GL_RGB8UI_EXT:
359 case GL_RGB16UI_EXT:
360 case GL_RGB32UI_EXT:
361 case GL_RGB8I_EXT:
362 case GL_RGB16I_EXT:
363 case GL_RGB32I_EXT:
364 return GL_RGB;
365 }
366 }
367
368 if (ctx->Extensions.EXT_texture_integer) {
369 switch (internalFormat) {
370 case GL_ALPHA8UI_EXT:
371 case GL_ALPHA16UI_EXT:
372 case GL_ALPHA32UI_EXT:
373 case GL_ALPHA8I_EXT:
374 case GL_ALPHA16I_EXT:
375 case GL_ALPHA32I_EXT:
376 return GL_ALPHA;
377 case GL_INTENSITY8UI_EXT:
378 case GL_INTENSITY16UI_EXT:
379 case GL_INTENSITY32UI_EXT:
380 case GL_INTENSITY8I_EXT:
381 case GL_INTENSITY16I_EXT:
382 case GL_INTENSITY32I_EXT:
383 return GL_INTENSITY;
384 case GL_LUMINANCE8UI_EXT:
385 case GL_LUMINANCE16UI_EXT:
386 case GL_LUMINANCE32UI_EXT:
387 case GL_LUMINANCE8I_EXT:
388 case GL_LUMINANCE16I_EXT:
389 case GL_LUMINANCE32I_EXT:
390 return GL_LUMINANCE;
391 case GL_LUMINANCE_ALPHA8UI_EXT:
392 case GL_LUMINANCE_ALPHA16UI_EXT:
393 case GL_LUMINANCE_ALPHA32UI_EXT:
394 case GL_LUMINANCE_ALPHA8I_EXT:
395 case GL_LUMINANCE_ALPHA16I_EXT:
396 case GL_LUMINANCE_ALPHA32I_EXT:
397 return GL_LUMINANCE_ALPHA;
398 default:
399 ; /* fallthrough */
400 }
401 }
402
403 if (ctx->Extensions.ARB_texture_rg) {
404 switch (internalFormat) {
405 case GL_R16F:
406 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
407 */
408 if (!ctx->Extensions.ARB_half_float_pixel)
409 break;
410 /* FALLTHROUGH */
411 case GL_R32F:
412 if (!ctx->Extensions.ARB_texture_float)
413 break;
414 return GL_RED;
415 case GL_R8I:
416 case GL_R8UI:
417 case GL_R16I:
418 case GL_R16UI:
419 case GL_R32I:
420 case GL_R32UI:
421 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
422 break;
423 /* FALLTHROUGH */
424 case GL_R8:
425 case GL_R16:
426 case GL_RED:
427 case GL_COMPRESSED_RED:
428 return GL_RED;
429
430 case GL_RG16F:
431 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
432 */
433 if (!ctx->Extensions.ARB_half_float_pixel)
434 break;
435 /* FALLTHROUGH */
436 case GL_RG32F:
437 if (!ctx->Extensions.ARB_texture_float)
438 break;
439 return GL_RG;
440 case GL_RG8I:
441 case GL_RG8UI:
442 case GL_RG16I:
443 case GL_RG16UI:
444 case GL_RG32I:
445 case GL_RG32UI:
446 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
447 break;
448 /* FALLTHROUGH */
449 case GL_RG:
450 case GL_RG8:
451 case GL_RG16:
452 case GL_COMPRESSED_RG:
453 return GL_RG;
454 default:
455 ; /* fallthrough */
456 }
457 }
458
459 if (ctx->Extensions.EXT_texture_shared_exponent) {
460 switch (internalFormat) {
461 case GL_RGB9_E5_EXT:
462 return GL_RGB;
463 default:
464 ; /* fallthrough */
465 }
466 }
467
468 if (ctx->Extensions.EXT_packed_float) {
469 switch (internalFormat) {
470 case GL_R11F_G11F_B10F_EXT:
471 return GL_RGB;
472 default:
473 ; /* fallthrough */
474 }
475 }
476
477 if (ctx->Extensions.ARB_depth_buffer_float) {
478 switch (internalFormat) {
479 case GL_DEPTH_COMPONENT32F:
480 return GL_DEPTH_COMPONENT;
481 case GL_DEPTH32F_STENCIL8:
482 return GL_DEPTH_STENCIL;
483 default:
484 ; /* fallthrough */
485 }
486 }
487
488 if (ctx->Extensions.ARB_texture_compression_rgtc) {
489 switch (internalFormat) {
490 case GL_COMPRESSED_RED_RGTC1:
491 case GL_COMPRESSED_SIGNED_RED_RGTC1:
492 return GL_RED;
493 case GL_COMPRESSED_RG_RGTC2:
494 case GL_COMPRESSED_SIGNED_RG_RGTC2:
495 return GL_RG;
496 default:
497 ; /* fallthrough */
498 }
499 }
500
501 if (ctx->Extensions.EXT_texture_compression_latc) {
502 switch (internalFormat) {
503 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
504 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
505 return GL_LUMINANCE;
506 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
507 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
508 return GL_LUMINANCE_ALPHA;
509 default:
510 ; /* fallthrough */
511 }
512 }
513
514 if (ctx->Extensions.ATI_texture_compression_3dc) {
515 switch (internalFormat) {
516 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
517 return GL_LUMINANCE_ALPHA;
518 default:
519 ; /* fallthrough */
520 }
521 }
522
523 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
524 switch (internalFormat) {
525 case GL_ETC1_RGB8_OES:
526 return GL_RGB;
527 default:
528 ; /* fallthrough */
529 }
530 }
531
532 if (_mesa_is_gles3(ctx)) {
533 switch (internalFormat) {
534 case GL_COMPRESSED_RGB8_ETC2:
535 case GL_COMPRESSED_SRGB8_ETC2:
536 return GL_RGB;
537 case GL_COMPRESSED_RGBA8_ETC2_EAC:
538 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
539 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
540 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
541 return GL_RGBA;
542 case GL_COMPRESSED_R11_EAC:
543 case GL_COMPRESSED_SIGNED_R11_EAC:
544 return GL_RED;
545 case GL_COMPRESSED_RG11_EAC:
546 case GL_COMPRESSED_SIGNED_RG11_EAC:
547 return GL_RG;
548 default:
549 ; /* fallthrough */
550 }
551 }
552
553 if (ctx->API == API_OPENGLES) {
554 switch (internalFormat) {
555 case GL_PALETTE4_RGB8_OES:
556 case GL_PALETTE4_R5_G6_B5_OES:
557 case GL_PALETTE8_RGB8_OES:
558 case GL_PALETTE8_R5_G6_B5_OES:
559 return GL_RGB;
560 case GL_PALETTE4_RGBA8_OES:
561 case GL_PALETTE8_RGB5_A1_OES:
562 case GL_PALETTE4_RGBA4_OES:
563 case GL_PALETTE4_RGB5_A1_OES:
564 case GL_PALETTE8_RGBA8_OES:
565 case GL_PALETTE8_RGBA4_OES:
566 return GL_RGBA;
567 default:
568 ; /* fallthrough */
569 }
570 }
571
572 return -1; /* error */
573 }
574
575
576 /**
577 * For cube map faces, return a face index in [0,5].
578 * For other targets return 0;
579 */
580 GLuint
581 _mesa_tex_target_to_face(GLenum target)
582 {
583 if (_mesa_is_cube_face(target))
584 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
585 else
586 return 0;
587 }
588
589
590
591 /**
592 * Install gl_texture_image in a gl_texture_object according to the target
593 * and level parameters.
594 *
595 * \param tObj texture object.
596 * \param target texture target.
597 * \param level image level.
598 * \param texImage texture image.
599 */
600 static void
601 set_tex_image(struct gl_texture_object *tObj,
602 GLenum target, GLint level,
603 struct gl_texture_image *texImage)
604 {
605 const GLuint face = _mesa_tex_target_to_face(target);
606
607 ASSERT(tObj);
608 ASSERT(texImage);
609 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES)
610 assert(level == 0);
611
612 tObj->Image[face][level] = texImage;
613
614 /* Set the 'back' pointer */
615 texImage->TexObject = tObj;
616 texImage->Level = level;
617 texImage->Face = face;
618 }
619
620
621 /**
622 * Allocate a texture image structure.
623 *
624 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
625 * driver.
626 *
627 * \return a pointer to gl_texture_image struct with all fields initialized to
628 * zero.
629 */
630 struct gl_texture_image *
631 _mesa_new_texture_image( struct gl_context *ctx )
632 {
633 (void) ctx;
634 return CALLOC_STRUCT(gl_texture_image);
635 }
636
637
638 /**
639 * Free a gl_texture_image and associated data.
640 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
641 *
642 * \param texImage texture image.
643 *
644 * Free the texture image structure and the associated image data.
645 */
646 void
647 _mesa_delete_texture_image(struct gl_context *ctx,
648 struct gl_texture_image *texImage)
649 {
650 /* Free texImage->Data and/or any other driver-specific texture
651 * image storage.
652 */
653 ASSERT(ctx->Driver.FreeTextureImageBuffer);
654 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
655 free(texImage);
656 }
657
658
659 /**
660 * Test if a target is a proxy target.
661 *
662 * \param target texture target.
663 *
664 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
665 */
666 GLboolean
667 _mesa_is_proxy_texture(GLenum target)
668 {
669 /*
670 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
671 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
672 */
673 assert(NUM_TEXTURE_TARGETS == 8 + 2);
674
675 return (target == GL_PROXY_TEXTURE_1D ||
676 target == GL_PROXY_TEXTURE_2D ||
677 target == GL_PROXY_TEXTURE_3D ||
678 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
679 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
680 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
681 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
682 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY);
683 }
684
685
686 /**
687 * Return the proxy target which corresponds to the given texture target
688 */
689 GLenum
690 _mesa_get_proxy_target(GLenum target)
691 {
692 switch (target) {
693 case GL_TEXTURE_1D:
694 case GL_PROXY_TEXTURE_1D:
695 return GL_PROXY_TEXTURE_1D;
696 case GL_TEXTURE_2D:
697 case GL_PROXY_TEXTURE_2D:
698 return GL_PROXY_TEXTURE_2D;
699 case GL_TEXTURE_3D:
700 case GL_PROXY_TEXTURE_3D:
701 return GL_PROXY_TEXTURE_3D;
702 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
703 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
704 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
705 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
706 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
707 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
708 case GL_TEXTURE_CUBE_MAP_ARB:
709 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
710 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
711 case GL_TEXTURE_RECTANGLE_NV:
712 case GL_PROXY_TEXTURE_RECTANGLE_NV:
713 return GL_PROXY_TEXTURE_RECTANGLE_NV;
714 case GL_TEXTURE_1D_ARRAY_EXT:
715 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
716 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
717 case GL_TEXTURE_2D_ARRAY_EXT:
718 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
719 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
720 case GL_TEXTURE_CUBE_MAP_ARRAY:
721 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
722 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
723 default:
724 _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
725 return 0;
726 }
727 }
728
729
730 /**
731 * Get the texture object that corresponds to the target of the given
732 * texture unit. The target should have already been checked for validity.
733 *
734 * \param ctx GL context.
735 * \param texUnit texture unit.
736 * \param target texture target.
737 *
738 * \return pointer to the texture object on success, or NULL on failure.
739 */
740 struct gl_texture_object *
741 _mesa_select_tex_object(struct gl_context *ctx,
742 const struct gl_texture_unit *texUnit,
743 GLenum target)
744 {
745 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
746 ctx->Extensions.EXT_texture_array);
747
748 switch (target) {
749 case GL_TEXTURE_1D:
750 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
751 case GL_PROXY_TEXTURE_1D:
752 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
753 case GL_TEXTURE_2D:
754 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
755 case GL_PROXY_TEXTURE_2D:
756 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
757 case GL_TEXTURE_3D:
758 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
759 case GL_PROXY_TEXTURE_3D:
760 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
761 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
762 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
763 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
764 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
765 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
766 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
767 case GL_TEXTURE_CUBE_MAP_ARB:
768 return ctx->Extensions.ARB_texture_cube_map
769 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
770 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
771 return ctx->Extensions.ARB_texture_cube_map
772 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
773 case GL_TEXTURE_CUBE_MAP_ARRAY:
774 return ctx->Extensions.ARB_texture_cube_map_array
775 ? texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
776 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
777 return ctx->Extensions.ARB_texture_cube_map_array
778 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
779 case GL_TEXTURE_RECTANGLE_NV:
780 return ctx->Extensions.NV_texture_rectangle
781 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
782 case GL_PROXY_TEXTURE_RECTANGLE_NV:
783 return ctx->Extensions.NV_texture_rectangle
784 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
785 case GL_TEXTURE_1D_ARRAY_EXT:
786 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
787 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
788 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
789 case GL_TEXTURE_2D_ARRAY_EXT:
790 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
791 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
792 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
793 case GL_TEXTURE_BUFFER:
794 return ctx->API == API_OPENGL_CORE &&
795 ctx->Extensions.ARB_texture_buffer_object ?
796 texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
797 case GL_TEXTURE_EXTERNAL_OES:
798 return ctx->Extensions.OES_EGL_image_external
799 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
800 default:
801 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
802 return NULL;
803 }
804 }
805
806
807 /**
808 * Return pointer to texture object for given target on current texture unit.
809 */
810 struct gl_texture_object *
811 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
812 {
813 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
814 return _mesa_select_tex_object(ctx, texUnit, target);
815 }
816
817
818 /**
819 * Get a texture image pointer from a texture object, given a texture
820 * target and mipmap level. The target and level parameters should
821 * have already been error-checked.
822 *
823 * \param ctx GL context.
824 * \param texObj texture unit.
825 * \param target texture target.
826 * \param level image level.
827 *
828 * \return pointer to the texture image structure, or NULL on failure.
829 */
830 struct gl_texture_image *
831 _mesa_select_tex_image(struct gl_context *ctx,
832 const struct gl_texture_object *texObj,
833 GLenum target, GLint level)
834 {
835 const GLuint face = _mesa_tex_target_to_face(target);
836
837 ASSERT(texObj);
838 ASSERT(level >= 0);
839 ASSERT(level < MAX_TEXTURE_LEVELS);
840
841 return texObj->Image[face][level];
842 }
843
844
845 /**
846 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
847 * it and install it. Only return NULL if passed a bad parameter or run
848 * out of memory.
849 */
850 struct gl_texture_image *
851 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
852 GLenum target, GLint level)
853 {
854 struct gl_texture_image *texImage;
855
856 if (!texObj)
857 return NULL;
858
859 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
860 if (!texImage) {
861 texImage = ctx->Driver.NewTextureImage(ctx);
862 if (!texImage) {
863 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
864 return NULL;
865 }
866
867 set_tex_image(texObj, target, level, texImage);
868 }
869
870 return texImage;
871 }
872
873
874 /**
875 * Return pointer to the specified proxy texture image.
876 * Note that proxy textures are per-context, not per-texture unit.
877 * \return pointer to texture image or NULL if invalid target, invalid
878 * level, or out of memory.
879 */
880 static struct gl_texture_image *
881 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
882 {
883 struct gl_texture_image *texImage;
884 GLuint texIndex;
885
886 if (level < 0)
887 return NULL;
888
889 switch (target) {
890 case GL_PROXY_TEXTURE_1D:
891 if (level >= ctx->Const.MaxTextureLevels)
892 return NULL;
893 texIndex = TEXTURE_1D_INDEX;
894 break;
895 case GL_PROXY_TEXTURE_2D:
896 if (level >= ctx->Const.MaxTextureLevels)
897 return NULL;
898 texIndex = TEXTURE_2D_INDEX;
899 break;
900 case GL_PROXY_TEXTURE_3D:
901 if (level >= ctx->Const.Max3DTextureLevels)
902 return NULL;
903 texIndex = TEXTURE_3D_INDEX;
904 break;
905 case GL_PROXY_TEXTURE_CUBE_MAP:
906 if (level >= ctx->Const.MaxCubeTextureLevels)
907 return NULL;
908 texIndex = TEXTURE_CUBE_INDEX;
909 break;
910 case GL_PROXY_TEXTURE_RECTANGLE_NV:
911 if (level > 0)
912 return NULL;
913 texIndex = TEXTURE_RECT_INDEX;
914 break;
915 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
916 if (level >= ctx->Const.MaxTextureLevels)
917 return NULL;
918 texIndex = TEXTURE_1D_ARRAY_INDEX;
919 break;
920 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
921 if (level >= ctx->Const.MaxTextureLevels)
922 return NULL;
923 texIndex = TEXTURE_2D_ARRAY_INDEX;
924 break;
925 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
926 if (level >= ctx->Const.MaxCubeTextureLevels)
927 return NULL;
928 texIndex = TEXTURE_CUBE_ARRAY_INDEX;
929 break;
930 default:
931 return NULL;
932 }
933
934 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
935 if (!texImage) {
936 texImage = ctx->Driver.NewTextureImage(ctx);
937 if (!texImage) {
938 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
939 return NULL;
940 }
941 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
942 /* Set the 'back' pointer */
943 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
944 }
945 return texImage;
946 }
947
948
949 /**
950 * Get the maximum number of allowed mipmap levels.
951 *
952 * \param ctx GL context.
953 * \param target texture target.
954 *
955 * \return the maximum number of allowed mipmap levels for the given
956 * texture target, or zero if passed a bad target.
957 *
958 * \sa gl_constants.
959 */
960 GLint
961 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
962 {
963 switch (target) {
964 case GL_TEXTURE_1D:
965 case GL_PROXY_TEXTURE_1D:
966 case GL_TEXTURE_2D:
967 case GL_PROXY_TEXTURE_2D:
968 return ctx->Const.MaxTextureLevels;
969 case GL_TEXTURE_3D:
970 case GL_PROXY_TEXTURE_3D:
971 return ctx->Const.Max3DTextureLevels;
972 case GL_TEXTURE_CUBE_MAP:
973 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
974 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
975 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
976 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
977 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
978 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
979 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
980 return ctx->Extensions.ARB_texture_cube_map
981 ? ctx->Const.MaxCubeTextureLevels : 0;
982 case GL_TEXTURE_RECTANGLE_NV:
983 case GL_PROXY_TEXTURE_RECTANGLE_NV:
984 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
985 case GL_TEXTURE_1D_ARRAY_EXT:
986 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
987 case GL_TEXTURE_2D_ARRAY_EXT:
988 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
989 return (ctx->Extensions.MESA_texture_array ||
990 ctx->Extensions.EXT_texture_array)
991 ? ctx->Const.MaxTextureLevels : 0;
992 case GL_TEXTURE_CUBE_MAP_ARRAY:
993 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
994 return ctx->Extensions.ARB_texture_cube_map_array
995 ? ctx->Const.MaxCubeTextureLevels : 0;
996 case GL_TEXTURE_BUFFER:
997 return ctx->API == API_OPENGL_CORE &&
998 ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
999 case GL_TEXTURE_EXTERNAL_OES:
1000 /* fall-through */
1001 default:
1002 return 0; /* bad target */
1003 }
1004 }
1005
1006
1007 /**
1008 * Return number of dimensions per mipmap level for the given texture target.
1009 */
1010 GLint
1011 _mesa_get_texture_dimensions(GLenum target)
1012 {
1013 switch (target) {
1014 case GL_TEXTURE_1D:
1015 case GL_PROXY_TEXTURE_1D:
1016 return 1;
1017 case GL_TEXTURE_2D:
1018 case GL_TEXTURE_RECTANGLE:
1019 case GL_TEXTURE_CUBE_MAP:
1020 case GL_PROXY_TEXTURE_2D:
1021 case GL_PROXY_TEXTURE_RECTANGLE:
1022 case GL_PROXY_TEXTURE_CUBE_MAP:
1023 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1024 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1025 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1026 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1027 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1028 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1029 case GL_TEXTURE_1D_ARRAY:
1030 case GL_PROXY_TEXTURE_1D_ARRAY:
1031 case GL_TEXTURE_EXTERNAL_OES:
1032 return 2;
1033 case GL_TEXTURE_3D:
1034 case GL_PROXY_TEXTURE_3D:
1035 case GL_TEXTURE_2D_ARRAY:
1036 case GL_PROXY_TEXTURE_2D_ARRAY:
1037 case GL_TEXTURE_CUBE_MAP_ARRAY:
1038 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1039 return 3;
1040 case GL_TEXTURE_BUFFER:
1041 /* fall-through */
1042 default:
1043 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1044 target);
1045 return 2;
1046 }
1047 }
1048
1049
1050 /**
1051 * Return the maximum number of mipmap levels for the given target
1052 * and the dimensions.
1053 * The dimensions are expected not to include the border.
1054 */
1055 GLsizei
1056 _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
1057 GLsizei depth)
1058 {
1059 GLsizei size;
1060
1061 switch (target) {
1062 case GL_TEXTURE_1D:
1063 case GL_TEXTURE_1D_ARRAY:
1064 size = width;
1065 break;
1066 case GL_TEXTURE_CUBE_MAP:
1067 case GL_TEXTURE_CUBE_MAP_ARRAY:
1068 ASSERT(width == height);
1069 size = width;
1070 break;
1071 case GL_TEXTURE_2D:
1072 case GL_TEXTURE_2D_ARRAY:
1073 size = MAX2(width, height);
1074 break;
1075 case GL_TEXTURE_3D:
1076 size = MAX3(width, height, depth);
1077 break;
1078 case GL_TEXTURE_RECTANGLE:
1079 case GL_TEXTURE_EXTERNAL_OES:
1080 return 1;
1081 default:
1082 assert(0);
1083 return 1;
1084 }
1085
1086 return _mesa_logbase2(size) + 1;
1087 }
1088
1089
1090 #if 000 /* not used anymore */
1091 /*
1092 * glTexImage[123]D can accept a NULL image pointer. In this case we
1093 * create a texture image with unspecified image contents per the OpenGL
1094 * spec.
1095 */
1096 static GLubyte *
1097 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1098 {
1099 const GLint components = _mesa_components_in_format(format);
1100 const GLint numPixels = width * height * depth;
1101 GLubyte *data = (GLubyte *) malloc(numPixels * components * sizeof(GLubyte));
1102
1103 #ifdef DEBUG
1104 /*
1105 * Let's see if anyone finds this. If glTexImage2D() is called with
1106 * a NULL image pointer then load the texture image with something
1107 * interesting instead of leaving it indeterminate.
1108 */
1109 if (data) {
1110 static const char message[8][32] = {
1111 " X X XXXXX XXX X ",
1112 " XX XX X X X X X ",
1113 " X X X X X X X ",
1114 " X X XXXX XXX XXXXX ",
1115 " X X X X X X ",
1116 " X X X X X X X ",
1117 " X X XXXXX XXX X X ",
1118 " "
1119 };
1120
1121 GLubyte *imgPtr = data;
1122 GLint h, i, j, k;
1123 for (h = 0; h < depth; h++) {
1124 for (i = 0; i < height; i++) {
1125 GLint srcRow = 7 - (i % 8);
1126 for (j = 0; j < width; j++) {
1127 GLint srcCol = j % 32;
1128 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1129 for (k = 0; k < components; k++) {
1130 *imgPtr++ = texel;
1131 }
1132 }
1133 }
1134 }
1135 }
1136 #endif
1137
1138 return data;
1139 }
1140 #endif
1141
1142
1143
1144 /**
1145 * Set the size and format-related fields of a gl_texture_image struct
1146 * to zero. This is used when a proxy texture test fails.
1147 */
1148 static void
1149 clear_teximage_fields(struct gl_texture_image *img)
1150 {
1151 ASSERT(img);
1152 img->_BaseFormat = 0;
1153 img->InternalFormat = 0;
1154 img->Border = 0;
1155 img->Width = 0;
1156 img->Height = 0;
1157 img->Depth = 0;
1158 img->Width2 = 0;
1159 img->Height2 = 0;
1160 img->Depth2 = 0;
1161 img->WidthLog2 = 0;
1162 img->HeightLog2 = 0;
1163 img->DepthLog2 = 0;
1164 img->TexFormat = MESA_FORMAT_NONE;
1165 }
1166
1167
1168 /**
1169 * Initialize basic fields of the gl_texture_image struct.
1170 *
1171 * \param ctx GL context.
1172 * \param img texture image structure to be initialized.
1173 * \param width image width.
1174 * \param height image height.
1175 * \param depth image depth.
1176 * \param border image border.
1177 * \param internalFormat internal format.
1178 * \param format the actual hardware format (one of MESA_FORMAT_*)
1179 *
1180 * Fills in the fields of \p img with the given information.
1181 * Note: width, height and depth include the border.
1182 */
1183 void
1184 _mesa_init_teximage_fields(struct gl_context *ctx,
1185 struct gl_texture_image *img,
1186 GLsizei width, GLsizei height, GLsizei depth,
1187 GLint border, GLenum internalFormat,
1188 gl_format format)
1189 {
1190 GLenum target;
1191 ASSERT(img);
1192 ASSERT(width >= 0);
1193 ASSERT(height >= 0);
1194 ASSERT(depth >= 0);
1195
1196 target = img->TexObject->Target;
1197 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1198 ASSERT(img->_BaseFormat > 0);
1199 img->InternalFormat = internalFormat;
1200 img->Border = border;
1201 img->Width = width;
1202 img->Height = height;
1203 img->Depth = depth;
1204
1205 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1206 img->WidthLog2 = _mesa_logbase2(img->Width2);
1207
1208 switch(target) {
1209 case GL_TEXTURE_1D:
1210 case GL_TEXTURE_BUFFER:
1211 case GL_PROXY_TEXTURE_1D:
1212 if (height == 0)
1213 img->Height2 = 0;
1214 else
1215 img->Height2 = 1;
1216 img->HeightLog2 = 0;
1217 if (depth == 0)
1218 img->Depth2 = 0;
1219 else
1220 img->Depth2 = 1;
1221 img->DepthLog2 = 0;
1222 break;
1223 case GL_TEXTURE_1D_ARRAY:
1224 case GL_PROXY_TEXTURE_1D_ARRAY:
1225 img->Height2 = height; /* no border */
1226 img->HeightLog2 = 0; /* not used */
1227 if (depth == 0)
1228 img->Depth2 = 0;
1229 else
1230 img->Depth2 = 1;
1231 img->DepthLog2 = 0;
1232 break;
1233 case GL_TEXTURE_2D:
1234 case GL_TEXTURE_RECTANGLE:
1235 case GL_TEXTURE_CUBE_MAP:
1236 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1237 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1238 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1239 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1240 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1241 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1242 case GL_TEXTURE_EXTERNAL_OES:
1243 case GL_PROXY_TEXTURE_2D:
1244 case GL_PROXY_TEXTURE_RECTANGLE:
1245 case GL_PROXY_TEXTURE_CUBE_MAP:
1246 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1247 img->HeightLog2 = _mesa_logbase2(img->Height2);
1248 if (depth == 0)
1249 img->Depth2 = 0;
1250 else
1251 img->Depth2 = 1;
1252 img->DepthLog2 = 0;
1253 break;
1254 case GL_TEXTURE_2D_ARRAY:
1255 case GL_PROXY_TEXTURE_2D_ARRAY:
1256 case GL_TEXTURE_CUBE_MAP_ARRAY:
1257 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1258 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1259 img->HeightLog2 = _mesa_logbase2(img->Height2);
1260 img->Depth2 = depth; /* no border */
1261 img->DepthLog2 = 0; /* not used */
1262 break;
1263 case GL_TEXTURE_3D:
1264 case GL_PROXY_TEXTURE_3D:
1265 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1266 img->HeightLog2 = _mesa_logbase2(img->Height2);
1267 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1268 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1269 break;
1270 default:
1271 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1272 target);
1273 }
1274
1275 img->MaxNumLevels =
1276 _mesa_get_tex_max_num_levels(target,
1277 img->Width2, img->Height2, img->Depth2);
1278 img->TexFormat = format;
1279 }
1280
1281
1282 /**
1283 * Free and clear fields of the gl_texture_image struct.
1284 *
1285 * \param ctx GL context.
1286 * \param texImage texture image structure to be cleared.
1287 *
1288 * After the call, \p texImage will have no data associated with it. Its
1289 * fields are cleared so that its parent object will test incomplete.
1290 */
1291 void
1292 _mesa_clear_texture_image(struct gl_context *ctx,
1293 struct gl_texture_image *texImage)
1294 {
1295 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1296 clear_teximage_fields(texImage);
1297 }
1298
1299
1300 /**
1301 * Check the width, height, depth and border of a texture image are legal.
1302 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1303 * functions.
1304 * The target and level parameters will have already been validated.
1305 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1306 */
1307 GLboolean
1308 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
1309 GLint level, GLint width, GLint height,
1310 GLint depth, GLint border)
1311 {
1312 GLint maxSize;
1313
1314 switch (target) {
1315 case GL_TEXTURE_1D:
1316 case GL_PROXY_TEXTURE_1D:
1317 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */
1318 maxSize >>= level; /* level size */
1319 if (width < 2 * border || width > 2 * border + maxSize)
1320 return GL_FALSE;
1321 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1322 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1323 return GL_FALSE;
1324 }
1325 return GL_TRUE;
1326
1327 case GL_TEXTURE_2D:
1328 case GL_PROXY_TEXTURE_2D:
1329 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1330 maxSize >>= level;
1331 if (width < 2 * border || width > 2 * border + maxSize)
1332 return GL_FALSE;
1333 if (height < 2 * border || height > 2 * border + maxSize)
1334 return GL_FALSE;
1335 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1336 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1337 return GL_FALSE;
1338 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1339 return GL_FALSE;
1340 }
1341 return GL_TRUE;
1342
1343 case GL_TEXTURE_3D:
1344 case GL_PROXY_TEXTURE_3D:
1345 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1346 maxSize >>= level;
1347 if (width < 2 * border || width > 2 * border + maxSize)
1348 return GL_FALSE;
1349 if (height < 2 * border || height > 2 * border + maxSize)
1350 return GL_FALSE;
1351 if (depth < 2 * border || depth > 2 * border + maxSize)
1352 return GL_FALSE;
1353 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1354 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1355 return GL_FALSE;
1356 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1357 return GL_FALSE;
1358 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1359 return GL_FALSE;
1360 }
1361 return GL_TRUE;
1362
1363 case GL_TEXTURE_RECTANGLE_NV:
1364 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1365 if (level != 0)
1366 return GL_FALSE;
1367 maxSize = ctx->Const.MaxTextureRectSize;
1368 if (width < 0 || width > maxSize)
1369 return GL_FALSE;
1370 if (height < 0 || height > maxSize)
1371 return GL_FALSE;
1372 return GL_TRUE;
1373
1374 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1375 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1376 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1377 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1378 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1379 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1380 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1381 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1382 maxSize >>= level;
1383 if (width < 2 * border || width > 2 * border + maxSize)
1384 return GL_FALSE;
1385 if (height < 2 * border || height > 2 * border + maxSize)
1386 return GL_FALSE;
1387 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1388 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1389 return GL_FALSE;
1390 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1391 return GL_FALSE;
1392 }
1393 return GL_TRUE;
1394
1395 case GL_TEXTURE_1D_ARRAY_EXT:
1396 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1397 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1398 maxSize >>= level;
1399 if (width < 2 * border || width > 2 * border + maxSize)
1400 return GL_FALSE;
1401 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1402 return GL_FALSE;
1403 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1404 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1405 return GL_FALSE;
1406 }
1407 return GL_TRUE;
1408
1409 case GL_TEXTURE_2D_ARRAY_EXT:
1410 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1411 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1412 maxSize >>= level;
1413 if (width < 2 * border || width > 2 * border + maxSize)
1414 return GL_FALSE;
1415 if (height < 2 * border || height > 2 * border + maxSize)
1416 return GL_FALSE;
1417 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1418 return GL_FALSE;
1419 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1420 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1421 return GL_FALSE;
1422 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1423 return GL_FALSE;
1424 }
1425 return GL_TRUE;
1426
1427 case GL_TEXTURE_CUBE_MAP_ARRAY:
1428 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1429 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1430 if (width < 2 * border || width > 2 * border + maxSize)
1431 return GL_FALSE;
1432 if (height < 2 * border || height > 2 * border + maxSize)
1433 return GL_FALSE;
1434 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1435 return GL_FALSE;
1436 if (level >= ctx->Const.MaxCubeTextureLevels)
1437 return GL_FALSE;
1438 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1439 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1440 return GL_FALSE;
1441 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1442 return GL_FALSE;
1443 }
1444 return GL_TRUE;
1445 default:
1446 _mesa_problem(ctx, "Invalid target in _mesa_legal_texture_dimensions()");
1447 return GL_FALSE;
1448 }
1449 }
1450
1451
1452 /**
1453 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1454 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1455 * \param destImage the destination texture image.
1456 * \return GL_TRUE if error found, GL_FALSE otherwise.
1457 */
1458 static GLboolean
1459 error_check_subtexture_dimensions(struct gl_context *ctx,
1460 const char *function, GLuint dims,
1461 const struct gl_texture_image *destImage,
1462 GLint xoffset, GLint yoffset, GLint zoffset,
1463 GLsizei subWidth, GLsizei subHeight,
1464 GLsizei subDepth)
1465 {
1466 const GLenum target = destImage->TexObject->Target;
1467 GLuint bw, bh;
1468
1469 /* Check size */
1470 if (subWidth < 0) {
1471 _mesa_error(ctx, GL_INVALID_VALUE,
1472 "%s%dD(width=%d)", function, dims, subWidth);
1473 return GL_TRUE;
1474 }
1475
1476 if (dims > 1 && subHeight < 0) {
1477 _mesa_error(ctx, GL_INVALID_VALUE,
1478 "%s%dD(height=%d)", function, dims, subHeight);
1479 return GL_TRUE;
1480 }
1481
1482 if (dims > 2 && subDepth < 0) {
1483 _mesa_error(ctx, GL_INVALID_VALUE,
1484 "%s%dD(depth=%d)", function, dims, subDepth);
1485 return GL_TRUE;
1486 }
1487
1488 /* check xoffset and width */
1489 if (xoffset < -destImage->Border) {
1490 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset)",
1491 function, dims);
1492 return GL_TRUE;
1493 }
1494
1495 if (xoffset + subWidth > destImage->Width) {
1496 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset+width)",
1497 function, dims);
1498 return GL_TRUE;
1499 }
1500
1501 /* check yoffset and height */
1502 if (dims > 1) {
1503 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destImage->Border;
1504 if (yoffset < -yBorder) {
1505 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset)",
1506 function, dims);
1507 return GL_TRUE;
1508 }
1509 if (yoffset + subHeight > destImage->Height) {
1510 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset+height)",
1511 function, dims);
1512 return GL_TRUE;
1513 }
1514 }
1515
1516 /* check zoffset and depth */
1517 if (dims > 2) {
1518 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destImage->Border;
1519 if (zoffset < -zBorder) {
1520 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset)", function);
1521 return GL_TRUE;
1522 }
1523 if (zoffset + subDepth > (GLint) destImage->Depth) {
1524 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset+depth)", function);
1525 return GL_TRUE;
1526 }
1527 }
1528
1529 /*
1530 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1531 * compressed texture images can be updated. But, that restriction may be
1532 * relaxed for particular compressed formats. At this time, all the
1533 * compressed formats supported by Mesa allow sub-textures to be updated
1534 * along compressed block boundaries.
1535 */
1536 _mesa_get_format_block_size(destImage->TexFormat, &bw, &bh);
1537
1538 if (bw != 1 || bh != 1) {
1539 /* offset must be multiple of block size */
1540 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1541 _mesa_error(ctx, GL_INVALID_OPERATION,
1542 "%s%dD(xoffset = %d, yoffset = %d)",
1543 function, dims, xoffset, yoffset);
1544 return GL_TRUE;
1545 }
1546
1547 /* size must be multiple of bw by bh or equal to whole texture size */
1548 if ((subWidth % bw != 0) && subWidth != destImage->Width) {
1549 _mesa_error(ctx, GL_INVALID_OPERATION,
1550 "%s%dD(width = %d)", function, dims, subWidth);
1551 return GL_TRUE;
1552 }
1553
1554 if ((subHeight % bh != 0) && subHeight != destImage->Height) {
1555 _mesa_error(ctx, GL_INVALID_OPERATION,
1556 "%s%dD(height = %d)", function, dims, subHeight);
1557 return GL_TRUE;
1558 }
1559 }
1560
1561 return GL_FALSE;
1562 }
1563
1564
1565
1566
1567 /**
1568 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1569 * specific texture image size checks.
1570 *
1571 * A hardware driver might override this function if, for example, the
1572 * max 3D texture size is 512x512x64 (i.e. not a cube).
1573 *
1574 * Note that width, height, depth == 0 is not an error. However, a
1575 * texture with zero width/height/depth will be considered "incomplete"
1576 * and texturing will effectively be disabled.
1577 *
1578 * \param target any texture target/type
1579 * \param level as passed to glTexImage
1580 * \param format the MESA_FORMAT_x for the tex image
1581 * \param width as passed to glTexImage
1582 * \param height as passed to glTexImage
1583 * \param depth as passed to glTexImage
1584 * \param border as passed to glTexImage
1585 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1586 */
1587 GLboolean
1588 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1589 gl_format format,
1590 GLint width, GLint height, GLint depth, GLint border)
1591 {
1592 /* We just check if the image size is less than MaxTextureMbytes.
1593 * Some drivers may do more specific checks.
1594 */
1595 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1596 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1597 mbytes *= _mesa_num_tex_faces(target);
1598 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1599 }
1600
1601
1602 /**
1603 * Return true if the format is only valid for glCompressedTexImage.
1604 */
1605 static GLboolean
1606 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1607 {
1608 switch (format) {
1609 case GL_ETC1_RGB8_OES:
1610 case GL_PALETTE4_RGB8_OES:
1611 case GL_PALETTE4_RGBA8_OES:
1612 case GL_PALETTE4_R5_G6_B5_OES:
1613 case GL_PALETTE4_RGBA4_OES:
1614 case GL_PALETTE4_RGB5_A1_OES:
1615 case GL_PALETTE8_RGB8_OES:
1616 case GL_PALETTE8_RGBA8_OES:
1617 case GL_PALETTE8_R5_G6_B5_OES:
1618 case GL_PALETTE8_RGBA4_OES:
1619 case GL_PALETTE8_RGB5_A1_OES:
1620 return GL_TRUE;
1621 default:
1622 return GL_FALSE;
1623 }
1624 }
1625
1626
1627 /**
1628 * Helper function to determine whether a target and specific compression
1629 * format are supported.
1630 */
1631 static GLboolean
1632 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1633 GLenum intFormat)
1634 {
1635 (void) intFormat; /* not used yet */
1636
1637 switch (target) {
1638 case GL_TEXTURE_2D:
1639 case GL_PROXY_TEXTURE_2D:
1640 return GL_TRUE; /* true for any compressed format so far */
1641 case GL_PROXY_TEXTURE_CUBE_MAP:
1642 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1643 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1644 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1645 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1646 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1647 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1648 return ctx->Extensions.ARB_texture_cube_map;
1649 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1650 case GL_TEXTURE_2D_ARRAY_EXT:
1651 return (ctx->Extensions.MESA_texture_array ||
1652 ctx->Extensions.EXT_texture_array);
1653 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1654 case GL_TEXTURE_CUBE_MAP_ARRAY:
1655 return ctx->Extensions.ARB_texture_cube_map_array;
1656 default:
1657 return GL_FALSE;
1658 }
1659 }
1660
1661
1662 /**
1663 * Check if the given texture target value is legal for a
1664 * glTexImage1/2/3D call.
1665 */
1666 static GLboolean
1667 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1668 {
1669 switch (dims) {
1670 case 1:
1671 switch (target) {
1672 case GL_TEXTURE_1D:
1673 case GL_PROXY_TEXTURE_1D:
1674 return _mesa_is_desktop_gl(ctx);
1675 default:
1676 return GL_FALSE;
1677 }
1678 case 2:
1679 switch (target) {
1680 case GL_TEXTURE_2D:
1681 return GL_TRUE;
1682 case GL_PROXY_TEXTURE_2D:
1683 return _mesa_is_desktop_gl(ctx);
1684 case GL_PROXY_TEXTURE_CUBE_MAP:
1685 return _mesa_is_desktop_gl(ctx)
1686 && ctx->Extensions.ARB_texture_cube_map;
1687 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1688 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1689 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1690 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1691 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1692 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1693 return ctx->Extensions.ARB_texture_cube_map;
1694 case GL_TEXTURE_RECTANGLE_NV:
1695 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1696 return _mesa_is_desktop_gl(ctx)
1697 && ctx->Extensions.NV_texture_rectangle;
1698 case GL_TEXTURE_1D_ARRAY_EXT:
1699 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1700 return _mesa_is_desktop_gl(ctx)
1701 && (ctx->Extensions.MESA_texture_array ||
1702 ctx->Extensions.EXT_texture_array);
1703 default:
1704 return GL_FALSE;
1705 }
1706 case 3:
1707 switch (target) {
1708 case GL_TEXTURE_3D:
1709 return GL_TRUE;
1710 case GL_PROXY_TEXTURE_3D:
1711 return _mesa_is_desktop_gl(ctx);
1712 case GL_TEXTURE_2D_ARRAY_EXT:
1713 return (_mesa_is_desktop_gl(ctx)
1714 && (ctx->Extensions.MESA_texture_array ||
1715 ctx->Extensions.EXT_texture_array))
1716 || _mesa_is_gles3(ctx);
1717 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1718 return _mesa_is_desktop_gl(ctx)
1719 && (ctx->Extensions.MESA_texture_array ||
1720 ctx->Extensions.EXT_texture_array);
1721 case GL_TEXTURE_CUBE_MAP_ARRAY:
1722 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1723 return ctx->Extensions.ARB_texture_cube_map_array;
1724 default:
1725 return GL_FALSE;
1726 }
1727 default:
1728 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1729 return GL_FALSE;
1730 }
1731 }
1732
1733
1734 /**
1735 * Check if the given texture target value is legal for a
1736 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1737 * The difference compared to legal_teximage_target() above is that
1738 * proxy targets are not supported.
1739 */
1740 static GLboolean
1741 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1742 {
1743 switch (dims) {
1744 case 1:
1745 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1746 case 2:
1747 switch (target) {
1748 case GL_TEXTURE_2D:
1749 return GL_TRUE;
1750 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1751 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1752 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1753 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1754 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1755 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1756 return ctx->Extensions.ARB_texture_cube_map;
1757 case GL_TEXTURE_RECTANGLE_NV:
1758 return _mesa_is_desktop_gl(ctx)
1759 && ctx->Extensions.NV_texture_rectangle;
1760 case GL_TEXTURE_1D_ARRAY_EXT:
1761 return _mesa_is_desktop_gl(ctx)
1762 && (ctx->Extensions.MESA_texture_array ||
1763 ctx->Extensions.EXT_texture_array);
1764 default:
1765 return GL_FALSE;
1766 }
1767 case 3:
1768 switch (target) {
1769 case GL_TEXTURE_3D:
1770 return GL_TRUE;
1771 case GL_TEXTURE_2D_ARRAY_EXT:
1772 return (_mesa_is_desktop_gl(ctx)
1773 && (ctx->Extensions.MESA_texture_array ||
1774 ctx->Extensions.EXT_texture_array))
1775 || _mesa_is_gles3(ctx);
1776 case GL_TEXTURE_CUBE_MAP_ARRAY:
1777 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1778 return ctx->Extensions.ARB_texture_cube_map_array;
1779 default:
1780 return GL_FALSE;
1781 }
1782 default:
1783 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1784 dims);
1785 return GL_FALSE;
1786 }
1787 }
1788
1789
1790 /**
1791 * Helper function to determine if a texture object is mutable (in terms
1792 * of GL_ARB_texture_storage).
1793 */
1794 static GLboolean
1795 mutable_tex_object(struct gl_context *ctx, GLenum target)
1796 {
1797 if (ctx->Extensions.ARB_texture_storage) {
1798 struct gl_texture_object *texObj =
1799 _mesa_get_current_tex_object(ctx, target);
1800 return !texObj->Immutable;
1801 }
1802 return GL_TRUE;
1803 }
1804
1805
1806 /**
1807 * Return expected size of a compressed texture.
1808 */
1809 static GLuint
1810 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
1811 GLenum glformat)
1812 {
1813 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
1814 return _mesa_format_image_size(mesaFormat, width, height, depth);
1815 }
1816
1817
1818 /**
1819 * Test the glTexImage[123]D() parameters for errors.
1820 *
1821 * \param ctx GL context.
1822 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1823 * \param target texture target given by the user (already validated).
1824 * \param level image level given by the user.
1825 * \param internalFormat internal format given by the user.
1826 * \param format pixel data format given by the user.
1827 * \param type pixel data type given by the user.
1828 * \param width image width given by the user.
1829 * \param height image height given by the user.
1830 * \param depth image depth given by the user.
1831 * \param border image border given by the user.
1832 *
1833 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1834 *
1835 * Verifies each of the parameters against the constants specified in
1836 * __struct gl_contextRec::Const and the supported extensions, and according
1837 * to the OpenGL specification.
1838 * Note that we don't fully error-check the width, height, depth values
1839 * here. That's done in _mesa_legal_texture_dimensions() which is used
1840 * by several other GL entrypoints. Plus, texture dims have a special
1841 * interaction with proxy textures.
1842 */
1843 static GLboolean
1844 texture_error_check( struct gl_context *ctx,
1845 GLuint dimensions, GLenum target,
1846 GLint level, GLint internalFormat,
1847 GLenum format, GLenum type,
1848 GLint width, GLint height,
1849 GLint depth, GLint border )
1850 {
1851 GLboolean colorFormat;
1852 GLenum err;
1853
1854 /* Even though there are no color-index textures, we still have to support
1855 * uploading color-index data and remapping it to RGB via the
1856 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1857 */
1858 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1859
1860 /* Note: for proxy textures, some error conditions immediately generate
1861 * a GL error in the usual way. But others do not generate a GL error.
1862 * Instead, they cause the width, height, depth, format fields of the
1863 * texture image to be zeroed-out. The GL spec seems to indicate that the
1864 * zero-out behaviour is only used in cases related to memory allocation.
1865 */
1866
1867 /* level check */
1868 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
1869 _mesa_error(ctx, GL_INVALID_VALUE,
1870 "glTexImage%dD(level=%d)", dimensions, level);
1871 return GL_TRUE;
1872 }
1873
1874 /* Check border */
1875 if (border < 0 || border > 1 ||
1876 ((ctx->API != API_OPENGL_COMPAT ||
1877 target == GL_TEXTURE_RECTANGLE_NV ||
1878 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1879 _mesa_error(ctx, GL_INVALID_VALUE,
1880 "glTexImage%dD(border=%d)", dimensions, border);
1881 return GL_TRUE;
1882 }
1883
1884 if (width < 0 || height < 0 || depth < 0) {
1885 _mesa_error(ctx, GL_INVALID_VALUE,
1886 "glTexImage%dD(width, height or depth < 0)", dimensions);
1887 return GL_TRUE;
1888 }
1889
1890 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1891 * combinations of format, internalFormat, and type that can be used.
1892 * Formats and types that require additional extensions (e.g., GL_FLOAT
1893 * requires GL_OES_texture_float) are filtered elsewhere.
1894 */
1895
1896 if (_mesa_is_gles(ctx)) {
1897 if (_mesa_is_gles3(ctx)) {
1898 err = _mesa_es3_error_check_format_and_type(format, type,
1899 internalFormat);
1900 } else {
1901 if (format != internalFormat) {
1902 _mesa_error(ctx, GL_INVALID_OPERATION,
1903 "glTexImage%dD(format = %s, internalFormat = %s)",
1904 dimensions,
1905 _mesa_lookup_enum_by_nr(format),
1906 _mesa_lookup_enum_by_nr(internalFormat));
1907 return GL_TRUE;
1908 }
1909
1910 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1911 }
1912 if (err != GL_NO_ERROR) {
1913 _mesa_error(ctx, err,
1914 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1915 dimensions,
1916 _mesa_lookup_enum_by_nr(format),
1917 _mesa_lookup_enum_by_nr(type),
1918 _mesa_lookup_enum_by_nr(internalFormat));
1919 return GL_TRUE;
1920 }
1921 }
1922
1923 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1924 _mesa_is_cube_face(target)) && width != height) {
1925 _mesa_error(ctx, GL_INVALID_VALUE,
1926 "glTexImage2D(cube width != height)");
1927 return GL_TRUE;
1928 }
1929
1930 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1931 target == GL_TEXTURE_CUBE_MAP_ARRAY) && width != height) {
1932 _mesa_error(ctx, GL_INVALID_VALUE,
1933 "glTexImage3D(cube array width != height)");
1934 return GL_TRUE;
1935 }
1936
1937 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1938 target == GL_TEXTURE_CUBE_MAP_ARRAY) && (depth % 6)) {
1939 _mesa_error(ctx, GL_INVALID_VALUE,
1940 "glTexImage3D(cube array depth not multiple of 6)");
1941 return GL_TRUE;
1942 }
1943
1944 /* Check internalFormat */
1945 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1946 _mesa_error(ctx, GL_INVALID_VALUE,
1947 "glTexImage%dD(internalFormat=%s)",
1948 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1949 return GL_TRUE;
1950 }
1951
1952 /* Check incoming image format and type */
1953 err = _mesa_error_check_format_and_type(ctx, format, type);
1954 if (err != GL_NO_ERROR) {
1955 _mesa_error(ctx, err,
1956 "glTexImage%dD(incompatible format = %s, type = %s)",
1957 dimensions, _mesa_lookup_enum_by_nr(format),
1958 _mesa_lookup_enum_by_nr(type));
1959 return GL_TRUE;
1960 }
1961
1962 /* make sure internal format and format basically agree */
1963 colorFormat = _mesa_is_color_format(format);
1964 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1965 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1966 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1967 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1968 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1969 _mesa_error(ctx, GL_INVALID_OPERATION,
1970 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1971 dimensions, _mesa_lookup_enum_by_nr(internalFormat),
1972 _mesa_lookup_enum_by_nr(format));
1973 return GL_TRUE;
1974 }
1975
1976 /* additional checks for ycbcr textures */
1977 if (internalFormat == GL_YCBCR_MESA) {
1978 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1979 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1980 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1981 char message[100];
1982 _mesa_snprintf(message, sizeof(message),
1983 "glTexImage%dD(format/type YCBCR mismatch)",
1984 dimensions);
1985 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1986 return GL_TRUE; /* error */
1987 }
1988 if (target != GL_TEXTURE_2D &&
1989 target != GL_PROXY_TEXTURE_2D &&
1990 target != GL_TEXTURE_RECTANGLE_NV &&
1991 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1992 _mesa_error(ctx, GL_INVALID_ENUM,
1993 "glTexImage%dD(bad target for YCbCr texture)",
1994 dimensions);
1995 return GL_TRUE;
1996 }
1997 if (border != 0) {
1998 char message[100];
1999 _mesa_snprintf(message, sizeof(message),
2000 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
2001 dimensions, border);
2002 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
2003 return GL_TRUE;
2004 }
2005 }
2006
2007 /* additional checks for depth textures */
2008 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT
2009 || _mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_STENCIL) {
2010 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2011 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2012 if (target != GL_TEXTURE_1D &&
2013 target != GL_PROXY_TEXTURE_1D &&
2014 target != GL_TEXTURE_2D &&
2015 target != GL_PROXY_TEXTURE_2D &&
2016 target != GL_TEXTURE_1D_ARRAY &&
2017 target != GL_PROXY_TEXTURE_1D_ARRAY &&
2018 target != GL_TEXTURE_2D_ARRAY &&
2019 target != GL_PROXY_TEXTURE_2D_ARRAY &&
2020 target != GL_TEXTURE_RECTANGLE_ARB &&
2021 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
2022 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
2023 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4
2024 || (ctx->API == API_OPENGLES2 && ctx->Extensions.OES_depth_texture_cube_map))) &&
2025 !((target == GL_TEXTURE_CUBE_MAP_ARRAY ||
2026 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY) &&
2027 ctx->Extensions.ARB_texture_cube_map_array)) {
2028 _mesa_error(ctx, GL_INVALID_ENUM,
2029 "glTexImage%dD(bad target for depth texture)",
2030 dimensions);
2031 return GL_TRUE;
2032 }
2033 }
2034
2035 /* additional checks for compressed textures */
2036 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2037 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2038 _mesa_error(ctx, GL_INVALID_ENUM,
2039 "glTexImage%dD(target can't be compressed)", dimensions);
2040 return GL_TRUE;
2041 }
2042 if (compressedteximage_only_format(ctx, internalFormat)) {
2043 _mesa_error(ctx, GL_INVALID_OPERATION,
2044 "glTexImage%dD(no compression for format)", dimensions);
2045 return GL_TRUE;
2046 }
2047 if (border != 0) {
2048 _mesa_error(ctx, GL_INVALID_OPERATION,
2049 "glTexImage%dD(border!=0)", dimensions);
2050 return GL_TRUE;
2051 }
2052 }
2053
2054 /* additional checks for integer textures */
2055 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
2056 (_mesa_is_enum_format_integer(format) !=
2057 _mesa_is_enum_format_integer(internalFormat))) {
2058 _mesa_error(ctx, GL_INVALID_OPERATION,
2059 "glTexImage%dD(integer/non-integer format mismatch)",
2060 dimensions);
2061 return GL_TRUE;
2062 }
2063
2064 if (!mutable_tex_object(ctx, target)) {
2065 _mesa_error(ctx, GL_INVALID_OPERATION,
2066 "glTexImage%dD(immutable texture)", dimensions);
2067 return GL_TRUE;
2068 }
2069
2070 /* if we get here, the parameters are OK */
2071 return GL_FALSE;
2072 }
2073
2074
2075 /**
2076 * Error checking for glCompressedTexImage[123]D().
2077 * Note that the width, height and depth values are not fully error checked
2078 * here.
2079 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2080 */
2081 static GLenum
2082 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2083 GLenum target, GLint level,
2084 GLenum internalFormat, GLsizei width,
2085 GLsizei height, GLsizei depth, GLint border,
2086 GLsizei imageSize)
2087 {
2088 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2089 GLint expectedSize;
2090 GLenum error = GL_NO_ERROR;
2091 char *reason = ""; /* no error */
2092
2093 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2094 reason = "target";
2095 error = GL_INVALID_ENUM;
2096 goto error;
2097 }
2098
2099 /* This will detect any invalid internalFormat value */
2100 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2101 reason = "internalFormat";
2102 error = GL_INVALID_ENUM;
2103 goto error;
2104 }
2105
2106 switch (internalFormat) {
2107 case GL_PALETTE4_RGB8_OES:
2108 case GL_PALETTE4_RGBA8_OES:
2109 case GL_PALETTE4_R5_G6_B5_OES:
2110 case GL_PALETTE4_RGBA4_OES:
2111 case GL_PALETTE4_RGB5_A1_OES:
2112 case GL_PALETTE8_RGB8_OES:
2113 case GL_PALETTE8_RGBA8_OES:
2114 case GL_PALETTE8_R5_G6_B5_OES:
2115 case GL_PALETTE8_RGBA4_OES:
2116 case GL_PALETTE8_RGB5_A1_OES:
2117 /* check level (note that level should be zero or less!) */
2118 if (level > 0 || level < -maxLevels) {
2119 reason = "level";
2120 error = GL_INVALID_VALUE;
2121 goto error;
2122 }
2123
2124 if (dimensions != 2) {
2125 reason = "compressed paletted textures must be 2D";
2126 error = GL_INVALID_OPERATION;
2127 goto error;
2128 }
2129
2130 /* Figure out the expected texture size (in bytes). This will be
2131 * checked against the actual size later.
2132 */
2133 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
2134 width, height);
2135
2136 /* This is for the benefit of the TestProxyTexImage below. It expects
2137 * level to be non-negative. OES_compressed_paletted_texture uses a
2138 * weird mechanism where the level specified to glCompressedTexImage2D
2139 * is -(n-1) number of levels in the texture, and the data specifies the
2140 * complete mipmap stack. This is done to ensure the palette is the
2141 * same for all levels.
2142 */
2143 level = -level;
2144 break;
2145
2146 default:
2147 /* check level */
2148 if (level < 0 || level >= maxLevels) {
2149 reason = "level";
2150 error = GL_INVALID_VALUE;
2151 goto error;
2152 }
2153
2154 /* Figure out the expected texture size (in bytes). This will be
2155 * checked against the actual size later.
2156 */
2157 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
2158 break;
2159 }
2160
2161 /* This should really never fail */
2162 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
2163 reason = "internalFormat";
2164 error = GL_INVALID_ENUM;
2165 goto error;
2166 }
2167
2168 /* No compressed formats support borders at this time */
2169 if (border != 0) {
2170 reason = "border != 0";
2171 error = GL_INVALID_VALUE;
2172 goto error;
2173 }
2174
2175 /* For cube map, width must equal height */
2176 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2177 _mesa_is_cube_face(target)) && width != height) {
2178 reason = "width != height";
2179 error = GL_INVALID_VALUE;
2180 goto error;
2181 }
2182
2183 /* check image size in bytes */
2184 if (expectedSize != imageSize) {
2185 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2186 * if <imageSize> is not consistent with the format, dimensions, and
2187 * contents of the specified image.
2188 */
2189 reason = "imageSize inconsistant with width/height/format";
2190 error = GL_INVALID_VALUE;
2191 goto error;
2192 }
2193
2194 if (!mutable_tex_object(ctx, target)) {
2195 reason = "immutable texture";
2196 error = GL_INVALID_OPERATION;
2197 goto error;
2198 }
2199
2200 return GL_FALSE;
2201
2202 error:
2203 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason);
2204 return GL_TRUE;
2205 }
2206
2207
2208
2209 /**
2210 * Test glTexSubImage[123]D() parameters for errors.
2211 *
2212 * \param ctx GL context.
2213 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2214 * \param target texture target given by the user (already validated)
2215 * \param level image level given by the user.
2216 * \param xoffset sub-image x offset given by the user.
2217 * \param yoffset sub-image y offset given by the user.
2218 * \param zoffset sub-image z offset given by the user.
2219 * \param format pixel data format given by the user.
2220 * \param type pixel data type given by the user.
2221 * \param width image width given by the user.
2222 * \param height image height given by the user.
2223 * \param depth image depth given by the user.
2224 *
2225 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2226 *
2227 * Verifies each of the parameters against the constants specified in
2228 * __struct gl_contextRec::Const and the supported extensions, and according
2229 * to the OpenGL specification.
2230 */
2231 static GLboolean
2232 texsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2233 GLenum target, GLint level,
2234 GLint xoffset, GLint yoffset, GLint zoffset,
2235 GLint width, GLint height, GLint depth,
2236 GLenum format, GLenum type)
2237 {
2238 struct gl_texture_object *texObj;
2239 struct gl_texture_image *texImage;
2240 GLenum err;
2241
2242 /* check target (proxies not allowed) */
2243 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2244 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2245 dimensions, _mesa_lookup_enum_by_nr(target));
2246 return GL_TRUE;
2247 }
2248
2249 /* level check */
2250 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2251 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(level=%d)",
2252 dimensions, level);
2253 return GL_TRUE;
2254 }
2255
2256 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2257 * combinations of format and type that can be used. Formats and types
2258 * that require additional extensions (e.g., GL_FLOAT requires
2259 * GL_OES_texture_float) are filtered elsewhere.
2260 */
2261 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2262 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
2263 if (err != GL_NO_ERROR) {
2264 _mesa_error(ctx, err,
2265 "glTexSubImage%dD(format = %s, type = %s)",
2266 dimensions,
2267 _mesa_lookup_enum_by_nr(format),
2268 _mesa_lookup_enum_by_nr(type));
2269 return GL_TRUE;
2270 }
2271 }
2272
2273 err = _mesa_error_check_format_and_type(ctx, format, type);
2274 if (err != GL_NO_ERROR) {
2275 _mesa_error(ctx, err,
2276 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2277 dimensions, _mesa_lookup_enum_by_nr(format),
2278 _mesa_lookup_enum_by_nr(type));
2279 return GL_TRUE;
2280 }
2281
2282 /* Get dest texture object / image pointers */
2283 texObj = _mesa_get_current_tex_object(ctx, target);
2284 if (!texObj) {
2285 /* must be out of memory */
2286 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions);
2287 return GL_TRUE;
2288 }
2289
2290 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2291 if (!texImage) {
2292 /* non-existant texture level */
2293 _mesa_error(ctx, GL_INVALID_OPERATION,
2294 "glTexSubImage%dD(invalid texture image)", dimensions);
2295 return GL_TRUE;
2296 }
2297
2298 if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
2299 texImage, xoffset, yoffset, 0,
2300 width, height, 1)) {
2301 return GL_TRUE;
2302 }
2303
2304 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2305 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2306 _mesa_error(ctx, GL_INVALID_OPERATION,
2307 "glTexSubImage%dD(no compression for format)", dimensions);
2308 return GL_TRUE;
2309 }
2310 }
2311
2312 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2313 /* both source and dest must be integer-valued, or neither */
2314 if (_mesa_is_format_integer_color(texImage->TexFormat) !=
2315 _mesa_is_enum_format_integer(format)) {
2316 _mesa_error(ctx, GL_INVALID_OPERATION,
2317 "glTexSubImage%dD(integer/non-integer format mismatch)",
2318 dimensions);
2319 return GL_TRUE;
2320 }
2321 }
2322
2323 return GL_FALSE;
2324 }
2325
2326
2327 /**
2328 * Test glCopyTexImage[12]D() parameters for errors.
2329 *
2330 * \param ctx GL context.
2331 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2332 * \param target texture target given by the user.
2333 * \param level image level given by the user.
2334 * \param internalFormat internal format given by the user.
2335 * \param width image width given by the user.
2336 * \param height image height given by the user.
2337 * \param border texture border.
2338 *
2339 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2340 *
2341 * Verifies each of the parameters against the constants specified in
2342 * __struct gl_contextRec::Const and the supported extensions, and according
2343 * to the OpenGL specification.
2344 */
2345 static GLboolean
2346 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2347 GLenum target, GLint level, GLint internalFormat,
2348 GLint width, GLint height, GLint border )
2349 {
2350 GLint baseFormat;
2351 GLint rb_base_format;
2352 struct gl_renderbuffer *rb;
2353 GLenum rb_internal_format;
2354
2355 /* check target */
2356 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2357 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2358 dimensions, _mesa_lookup_enum_by_nr(target));
2359 return GL_TRUE;
2360 }
2361
2362 /* level check */
2363 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2364 _mesa_error(ctx, GL_INVALID_VALUE,
2365 "glCopyTexImage%dD(level=%d)", dimensions, level);
2366 return GL_TRUE;
2367 }
2368
2369 /* Check that the source buffer is complete */
2370 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2371 if (ctx->ReadBuffer->_Status == 0) {
2372 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2373 }
2374 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2375 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2376 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2377 return GL_TRUE;
2378 }
2379
2380 if (ctx->ReadBuffer->Visual.samples > 0) {
2381 _mesa_error(ctx, GL_INVALID_OPERATION,
2382 "glCopyTexImage%dD(multisample FBO)",
2383 dimensions);
2384 return GL_TRUE;
2385 }
2386 }
2387
2388 /* Check border */
2389 if (border < 0 || border > 1 ||
2390 ((ctx->API != API_OPENGL_COMPAT ||
2391 target == GL_TEXTURE_RECTANGLE_NV ||
2392 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2393 _mesa_error(ctx, GL_INVALID_VALUE,
2394 "glCopyTexImage%dD(border=%d)", dimensions, border);
2395 return GL_TRUE;
2396 }
2397
2398 rb = _mesa_get_read_renderbuffer_for_format(ctx, internalFormat);
2399 if (rb == NULL) {
2400 _mesa_error(ctx, GL_INVALID_OPERATION,
2401 "glCopyTexImage%dD(read buffer)", dimensions);
2402 return GL_TRUE;
2403 }
2404
2405 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2406 * internalFormat.
2407 */
2408 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2409 switch (internalFormat) {
2410 case GL_ALPHA:
2411 case GL_RGB:
2412 case GL_RGBA:
2413 case GL_LUMINANCE:
2414 case GL_LUMINANCE_ALPHA:
2415 break;
2416 default:
2417 _mesa_error(ctx, GL_INVALID_VALUE,
2418 "glCopyTexImage%dD(internalFormat)", dimensions);
2419 return GL_TRUE;
2420 }
2421 }
2422
2423 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2424 if (baseFormat < 0) {
2425 _mesa_error(ctx, GL_INVALID_OPERATION,
2426 "glCopyTexImage%dD(internalFormat)", dimensions);
2427 return GL_TRUE;
2428 }
2429
2430 rb_internal_format = rb->InternalFormat;
2431 rb_base_format = _mesa_base_tex_format(ctx, rb->InternalFormat);
2432 if (_mesa_is_color_format(internalFormat)) {
2433 if (rb_base_format < 0) {
2434 _mesa_error(ctx, GL_INVALID_VALUE,
2435 "glCopyTexImage%dD(internalFormat)", dimensions);
2436 return GL_TRUE;
2437 }
2438 }
2439
2440 if (_mesa_is_gles(ctx)) {
2441 bool valid = true;
2442 if (_mesa_base_format_component_count(baseFormat) >
2443 _mesa_base_format_component_count(rb_base_format)) {
2444 valid = false;
2445 }
2446 if (baseFormat == GL_DEPTH_COMPONENT ||
2447 baseFormat == GL_DEPTH_STENCIL ||
2448 rb_base_format == GL_DEPTH_COMPONENT ||
2449 rb_base_format == GL_DEPTH_STENCIL ||
2450 ((baseFormat == GL_LUMINANCE_ALPHA ||
2451 baseFormat == GL_ALPHA) &&
2452 rb_base_format != GL_RGBA) ||
2453 internalFormat == GL_RGB9_E5) {
2454 valid = false;
2455 }
2456 if (internalFormat == GL_RGB9_E5) {
2457 valid = false;
2458 }
2459 if (!valid) {
2460 _mesa_error(ctx, GL_INVALID_OPERATION,
2461 "glCopyTexImage%dD(internalFormat)", dimensions);
2462 return GL_TRUE;
2463 }
2464 }
2465
2466 if ((_mesa_is_desktop_gl(ctx) &&
2467 ctx->Extensions.ARB_framebuffer_object) ||
2468 _mesa_is_gles3(ctx)) {
2469 bool rb_is_srgb = false;
2470 bool dst_is_srgb = false;
2471
2472 if (ctx->Extensions.EXT_framebuffer_sRGB &&
2473 _mesa_get_format_color_encoding(rb->Format) == GL_SRGB) {
2474 rb_is_srgb = true;
2475 }
2476
2477 if (_mesa_get_linear_internalformat(internalFormat) != internalFormat) {
2478 dst_is_srgb = true;
2479 }
2480
2481 if (rb_is_srgb != dst_is_srgb) {
2482 /* Page 190 (page 211 of the PDF) in section 8.6 of the OpenGL 4.3
2483 * Core Profile spec says:
2484 *
2485 * "An INVALID_OPERATION error is generated under any of the
2486 * following conditions:
2487 *
2488 * ...
2489 *
2490 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2491 * for the framebuffer attachment corresponding to the read
2492 * buffer is LINEAR (see section 9.2.3) and internalformat
2493 * is one of the sRGB formats in table 8.23
2494 * - if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING
2495 * for the framebuffer attachment corresponding to the read
2496 * buffer is SRGB and internalformat is not one of the sRGB
2497 * formats. in table 8.23."
2498 */
2499 _mesa_error(ctx, GL_INVALID_OPERATION,
2500 "glCopyTexImage%dD(srgb usage mismatch)", dimensions);
2501 return GL_TRUE;
2502 }
2503 }
2504
2505 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2506 _mesa_error(ctx, GL_INVALID_OPERATION,
2507 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2508 return GL_TRUE;
2509 }
2510
2511 /* From the EXT_texture_integer spec:
2512 *
2513 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2514 * if the texture internalformat is an integer format and the read color
2515 * buffer is not an integer format, or if the internalformat is not an
2516 * integer format and the read color buffer is an integer format."
2517 */
2518 if (_mesa_is_color_format(internalFormat)) {
2519 bool is_int = _mesa_is_enum_format_integer(internalFormat);
2520 bool is_rbint = _mesa_is_enum_format_integer(rb_internal_format);
2521 if (is_int || is_rbint) {
2522 if (is_int != is_rbint) {
2523 _mesa_error(ctx, GL_INVALID_OPERATION,
2524 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2525 return GL_TRUE;
2526 } else if (_mesa_is_gles(ctx) &&
2527 _mesa_is_enum_format_unsigned_int(internalFormat) !=
2528 _mesa_is_enum_format_unsigned_int(rb_internal_format)) {
2529 _mesa_error(ctx, GL_INVALID_OPERATION,
2530 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions);
2531 return GL_TRUE;
2532 }
2533 }
2534 }
2535
2536 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2537 _mesa_is_cube_face(target)) && width != height) {
2538 _mesa_error(ctx, GL_INVALID_VALUE,
2539 "glTexImage2D(cube width != height)");
2540 return GL_TRUE;
2541 }
2542
2543 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2544 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2545 _mesa_error(ctx, GL_INVALID_ENUM,
2546 "glCopyTexImage%dD(target)", dimensions);
2547 return GL_TRUE;
2548 }
2549 if (compressedteximage_only_format(ctx, internalFormat)) {
2550 _mesa_error(ctx, GL_INVALID_OPERATION,
2551 "glCopyTexImage%dD(no compression for format)", dimensions);
2552 return GL_TRUE;
2553 }
2554 if (border != 0) {
2555 _mesa_error(ctx, GL_INVALID_OPERATION,
2556 "glCopyTexImage%dD(border!=0)", dimensions);
2557 return GL_TRUE;
2558 }
2559 }
2560
2561 if (!mutable_tex_object(ctx, target)) {
2562 _mesa_error(ctx, GL_INVALID_OPERATION,
2563 "glCopyTexImage%dD(immutable texture)", dimensions);
2564 return GL_TRUE;
2565 }
2566
2567 /* if we get here, the parameters are OK */
2568 return GL_FALSE;
2569 }
2570
2571
2572 /**
2573 * Test glCopyTexSubImage[12]D() parameters for errors.
2574 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2575 */
2576 static GLboolean
2577 copytexsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2578 GLenum target, GLint level,
2579 GLint xoffset, GLint yoffset, GLint zoffset,
2580 GLint width, GLint height)
2581 {
2582 struct gl_texture_object *texObj;
2583 struct gl_texture_image *texImage;
2584
2585 /* Check that the source buffer is complete */
2586 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2587 if (ctx->ReadBuffer->_Status == 0) {
2588 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2589 }
2590 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2591 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2592 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2593 return GL_TRUE;
2594 }
2595
2596 if (ctx->ReadBuffer->Visual.samples > 0) {
2597 _mesa_error(ctx, GL_INVALID_OPERATION,
2598 "glCopyTexSubImage%dD(multisample FBO)",
2599 dimensions);
2600 return GL_TRUE;
2601 }
2602 }
2603
2604 /* check target (proxies not allowed) */
2605 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2606 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2607 dimensions, _mesa_lookup_enum_by_nr(target));
2608 return GL_TRUE;
2609 }
2610
2611 /* Check level */
2612 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2613 _mesa_error(ctx, GL_INVALID_VALUE,
2614 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2615 return GL_TRUE;
2616 }
2617
2618 /* Get dest texture object / image pointers */
2619 texObj = _mesa_get_current_tex_object(ctx, target);
2620 if (!texObj) {
2621 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%dD()", dimensions);
2622 return GL_TRUE;
2623 }
2624
2625 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2626 if (!texImage) {
2627 /* destination image does not exist */
2628 _mesa_error(ctx, GL_INVALID_OPERATION,
2629 "glCopyTexSubImage%dD(invalid texture image)", dimensions);
2630 return GL_TRUE;
2631 }
2632
2633 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2634 dimensions, texImage,
2635 xoffset, yoffset, zoffset,
2636 width, height, 1)) {
2637 return GL_TRUE;
2638 }
2639
2640 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2641 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2642 _mesa_error(ctx, GL_INVALID_OPERATION,
2643 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2644 return GL_TRUE;
2645 }
2646 }
2647
2648 if (texImage->InternalFormat == GL_YCBCR_MESA) {
2649 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2650 return GL_TRUE;
2651 }
2652
2653 if (!_mesa_source_buffer_exists(ctx, texImage->_BaseFormat)) {
2654 _mesa_error(ctx, GL_INVALID_OPERATION,
2655 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2656 dimensions, texImage->_BaseFormat);
2657 return GL_TRUE;
2658 }
2659
2660 /* From the EXT_texture_integer spec:
2661 *
2662 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2663 * if the texture internalformat is an integer format and the read color
2664 * buffer is not an integer format, or if the internalformat is not an
2665 * integer format and the read color buffer is an integer format."
2666 */
2667 if (_mesa_is_color_format(texImage->InternalFormat)) {
2668 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2669
2670 if (_mesa_is_format_integer_color(rb->Format) !=
2671 _mesa_is_format_integer_color(texImage->TexFormat)) {
2672 _mesa_error(ctx, GL_INVALID_OPERATION,
2673 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2674 return GL_TRUE;
2675 }
2676 }
2677
2678 /* if we get here, the parameters are OK */
2679 return GL_FALSE;
2680 }
2681
2682
2683 /** Callback info for walking over FBO hash table */
2684 struct cb_info
2685 {
2686 struct gl_context *ctx;
2687 struct gl_texture_object *texObj;
2688 GLuint level, face;
2689 };
2690
2691
2692 /**
2693 * Check render to texture callback. Called from _mesa_HashWalk().
2694 */
2695 static void
2696 check_rtt_cb(GLuint key, void *data, void *userData)
2697 {
2698 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2699 const struct cb_info *info = (struct cb_info *) userData;
2700 struct gl_context *ctx = info->ctx;
2701 const struct gl_texture_object *texObj = info->texObj;
2702 const GLuint level = info->level, face = info->face;
2703
2704 /* If this is a user-created FBO */
2705 if (_mesa_is_user_fbo(fb)) {
2706 GLuint i;
2707 /* check if any of the FBO's attachments point to 'texObj' */
2708 for (i = 0; i < BUFFER_COUNT; i++) {
2709 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2710 if (att->Type == GL_TEXTURE &&
2711 att->Texture == texObj &&
2712 att->TextureLevel == level &&
2713 att->CubeMapFace == face) {
2714 ASSERT(_mesa_get_attachment_teximage(att));
2715 /* Tell driver about the new renderbuffer texture */
2716 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2717 /* Mark fb status as indeterminate to force re-validation */
2718 fb->_Status = 0;
2719 }
2720 }
2721 }
2722 }
2723
2724
2725 /**
2726 * When a texture image is specified we have to check if it's bound to
2727 * any framebuffer objects (render to texture) in order to detect changes
2728 * in size or format since that effects FBO completeness.
2729 * Any FBOs rendering into the texture must be re-validated.
2730 */
2731 void
2732 _mesa_update_fbo_texture(struct gl_context *ctx,
2733 struct gl_texture_object *texObj,
2734 GLuint face, GLuint level)
2735 {
2736 /* Only check this texture if it's been marked as RenderToTexture */
2737 if (texObj->_RenderToTexture) {
2738 struct cb_info info;
2739 info.ctx = ctx;
2740 info.texObj = texObj;
2741 info.level = level;
2742 info.face = face;
2743 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2744 }
2745 }
2746
2747
2748 /**
2749 * If the texture object's GenerateMipmap flag is set and we've
2750 * changed the texture base level image, regenerate the rest of the
2751 * mipmap levels now.
2752 */
2753 static inline void
2754 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2755 struct gl_texture_object *texObj, GLint level)
2756 {
2757 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2758 if (texObj->GenerateMipmap &&
2759 level == texObj->BaseLevel &&
2760 level < texObj->MaxLevel) {
2761 ASSERT(ctx->Driver.GenerateMipmap);
2762 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2763 }
2764 }
2765
2766
2767 /** Debug helper: override the user-requested internal format */
2768 static GLenum
2769 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2770 {
2771 #if 0
2772 if (internalFormat == GL_RGBA16F_ARB ||
2773 internalFormat == GL_RGBA32F_ARB) {
2774 printf("Convert rgba float tex to int %d x %d\n", width, height);
2775 return GL_RGBA;
2776 }
2777 else if (internalFormat == GL_RGB16F_ARB ||
2778 internalFormat == GL_RGB32F_ARB) {
2779 printf("Convert rgb float tex to int %d x %d\n", width, height);
2780 return GL_RGB;
2781 }
2782 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2783 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2784 printf("Convert luminance float tex to int %d x %d\n", width, height);
2785 return GL_LUMINANCE_ALPHA;
2786 }
2787 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2788 internalFormat == GL_LUMINANCE32F_ARB) {
2789 printf("Convert luminance float tex to int %d x %d\n", width, height);
2790 return GL_LUMINANCE;
2791 }
2792 else if (internalFormat == GL_ALPHA16F_ARB ||
2793 internalFormat == GL_ALPHA32F_ARB) {
2794 printf("Convert luminance float tex to int %d x %d\n", width, height);
2795 return GL_ALPHA;
2796 }
2797 /*
2798 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2799 internalFormat = GL_RGBA;
2800 }
2801 */
2802 else {
2803 return internalFormat;
2804 }
2805 #else
2806 return internalFormat;
2807 #endif
2808 }
2809
2810
2811 /**
2812 * Choose the actual hardware format for a texture image.
2813 * Try to use the same format as the previous image level when possible.
2814 * Otherwise, ask the driver for the best format.
2815 * It's important to try to choose a consistant format for all levels
2816 * for efficient texture memory layout/allocation. In particular, this
2817 * comes up during automatic mipmap generation.
2818 */
2819 gl_format
2820 _mesa_choose_texture_format(struct gl_context *ctx,
2821 struct gl_texture_object *texObj,
2822 GLenum target, GLint level,
2823 GLenum internalFormat, GLenum format, GLenum type)
2824 {
2825 gl_format f;
2826
2827 /* see if we've already chosen a format for the previous level */
2828 if (level > 0) {
2829 struct gl_texture_image *prevImage =
2830 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2831 /* See if the prev level is defined and has an internal format which
2832 * matches the new internal format.
2833 */
2834 if (prevImage &&
2835 prevImage->Width > 0 &&
2836 prevImage->InternalFormat == internalFormat) {
2837 /* use the same format */
2838 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2839 return prevImage->TexFormat;
2840 }
2841 }
2842
2843 /* If the application requested compression to an S3TC format but we don't
2844 * have the DTXn library, force a generic compressed format instead.
2845 */
2846 if (internalFormat != format && format != GL_NONE) {
2847 const GLenum before = internalFormat;
2848
2849 switch (internalFormat) {
2850 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
2851 if (!ctx->Mesa_DXTn)
2852 internalFormat = GL_COMPRESSED_RGB;
2853 break;
2854 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
2855 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
2856 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
2857 if (!ctx->Mesa_DXTn)
2858 internalFormat = GL_COMPRESSED_RGBA;
2859 break;
2860 default:
2861 break;
2862 }
2863
2864 if (before != internalFormat) {
2865 _mesa_warning(ctx,
2866 "DXT compression requested (%s), "
2867 "but libtxc_dxtn library not installed. Using %s "
2868 "instead.",
2869 _mesa_lookup_enum_by_nr(before),
2870 _mesa_lookup_enum_by_nr(internalFormat));
2871 }
2872 }
2873
2874 /* choose format from scratch */
2875 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat,
2876 format, type);
2877 ASSERT(f != MESA_FORMAT_NONE);
2878 return f;
2879 }
2880
2881 /**
2882 * Adjust pixel unpack params and image dimensions to strip off the
2883 * one-pixel texture border.
2884 *
2885 * Gallium and intel don't support texture borders. They've seldem been used
2886 * and seldom been implemented correctly anyway.
2887 *
2888 * \param unpackNew returns the new pixel unpack parameters
2889 */
2890 static void
2891 strip_texture_border(GLenum target,
2892 GLint *width, GLint *height, GLint *depth,
2893 const struct gl_pixelstore_attrib *unpack,
2894 struct gl_pixelstore_attrib *unpackNew)
2895 {
2896 assert(width);
2897 assert(height);
2898 assert(depth);
2899
2900 *unpackNew = *unpack;
2901
2902 if (unpackNew->RowLength == 0)
2903 unpackNew->RowLength = *width;
2904
2905 if (unpackNew->ImageHeight == 0)
2906 unpackNew->ImageHeight = *height;
2907
2908 assert(*width >= 3);
2909 unpackNew->SkipPixels++; /* skip the border */
2910 *width = *width - 2; /* reduce the width by two border pixels */
2911
2912 /* The min height of a texture with a border is 3 */
2913 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2914 unpackNew->SkipRows++; /* skip the border */
2915 *height = *height - 2; /* reduce the height by two border pixels */
2916 }
2917
2918 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY && target != GL_TEXTURE_CUBE_MAP_ARRAY) {
2919 unpackNew->SkipImages++; /* skip the border */
2920 *depth = *depth - 2; /* reduce the depth by two border pixels */
2921 }
2922 }
2923
2924
2925 /**
2926 * Common code to implement all the glTexImage1D/2D/3D functions
2927 * as well as glCompressedTexImage1D/2D/3D.
2928 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2929 * \param format the user's image format (only used if !compressed)
2930 * \param type the user's image type (only used if !compressed)
2931 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2932 */
2933 static void
2934 teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
2935 GLenum target, GLint level, GLint internalFormat,
2936 GLsizei width, GLsizei height, GLsizei depth,
2937 GLint border, GLenum format, GLenum type,
2938 GLsizei imageSize, const GLvoid *pixels)
2939 {
2940 const char *func = compressed ? "glCompressedTexImage" : "glTexImage";
2941 struct gl_pixelstore_attrib unpack_no_border;
2942 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2943 struct gl_texture_object *texObj;
2944 gl_format texFormat;
2945 GLboolean dimensionsOK, sizeOK;
2946
2947 FLUSH_VERTICES(ctx, 0);
2948
2949 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) {
2950 if (compressed)
2951 _mesa_debug(ctx,
2952 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2953 dims,
2954 _mesa_lookup_enum_by_nr(target), level,
2955 _mesa_lookup_enum_by_nr(internalFormat),
2956 width, height, depth, border, pixels);
2957 else
2958 _mesa_debug(ctx,
2959 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2960 dims,
2961 _mesa_lookup_enum_by_nr(target), level,
2962 _mesa_lookup_enum_by_nr(internalFormat),
2963 width, height, depth, border,
2964 _mesa_lookup_enum_by_nr(format),
2965 _mesa_lookup_enum_by_nr(type), pixels);
2966 }
2967
2968 internalFormat = override_internal_format(internalFormat, width, height);
2969
2970 /* target error checking */
2971 if (!legal_teximage_target(ctx, dims, target)) {
2972 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)",
2973 func, dims, _mesa_lookup_enum_by_nr(target));
2974 return;
2975 }
2976
2977 /* general error checking */
2978 if (compressed) {
2979 if (compressed_texture_error_check(ctx, dims, target, level,
2980 internalFormat,
2981 width, height, depth,
2982 border, imageSize))
2983 return;
2984 }
2985 else {
2986 if (texture_error_check(ctx, dims, target, level, internalFormat,
2987 format, type, width, height, depth, border))
2988 return;
2989 }
2990
2991 /* Here we convert a cpal compressed image into a regular glTexImage2D
2992 * call by decompressing the texture. If we really want to support cpal
2993 * textures in any driver this would have to be changed.
2994 */
2995 if (ctx->API == API_OPENGLES && compressed && dims == 2) {
2996 switch (internalFormat) {
2997 case GL_PALETTE4_RGB8_OES:
2998 case GL_PALETTE4_RGBA8_OES:
2999 case GL_PALETTE4_R5_G6_B5_OES:
3000 case GL_PALETTE4_RGBA4_OES:
3001 case GL_PALETTE4_RGB5_A1_OES:
3002 case GL_PALETTE8_RGB8_OES:
3003 case GL_PALETTE8_RGBA8_OES:
3004 case GL_PALETTE8_R5_G6_B5_OES:
3005 case GL_PALETTE8_RGBA4_OES:
3006 case GL_PALETTE8_RGB5_A1_OES:
3007 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
3008 width, height, imageSize, pixels);
3009 return;
3010 }
3011 }
3012
3013 texObj = _mesa_get_current_tex_object(ctx, target);
3014 assert(texObj);
3015
3016 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3017 internalFormat, format, type);
3018 assert(texFormat != MESA_FORMAT_NONE);
3019
3020 /* check that width, height, depth are legal for the mipmap level */
3021 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, level, width,
3022 height, depth, border);
3023
3024 /* check that the texture won't take too much memory, etc */
3025 sizeOK = ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3026 level, texFormat,
3027 width, height, depth, border);
3028
3029 if (_mesa_is_proxy_texture(target)) {
3030 /* Proxy texture: just clear or set state depending on error checking */
3031 struct gl_texture_image *texImage =
3032 get_proxy_tex_image(ctx, target, level);
3033
3034 if (!texImage)
3035 return; /* GL_OUT_OF_MEMORY already recorded */
3036
3037 if (dimensionsOK && sizeOK) {
3038 _mesa_init_teximage_fields(ctx, texImage, width, height, depth,
3039 border, internalFormat, texFormat);
3040 }
3041 else {
3042 clear_teximage_fields(texImage);
3043 }
3044 }
3045 else {
3046 /* non-proxy target */
3047 const GLuint face = _mesa_tex_target_to_face(target);
3048 struct gl_texture_image *texImage;
3049
3050 if (!dimensionsOK) {
3051 _mesa_error(ctx, GL_INVALID_VALUE,
3052 "glTexImage%uD(invalid width or height or depth)",
3053 dims);
3054 return;
3055 }
3056
3057 if (!sizeOK) {
3058 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3059 "glTexImage%uD(image too large)", dims);
3060 return;
3061 }
3062
3063 /* Allow a hardware driver to just strip out the border, to provide
3064 * reliable but slightly incorrect hardware rendering instead of
3065 * rarely-tested software fallback rendering.
3066 */
3067 if (border && ctx->Const.StripTextureBorder) {
3068 strip_texture_border(target, &width, &height, &depth, unpack,
3069 &unpack_no_border);
3070 border = 0;
3071 unpack = &unpack_no_border;
3072 }
3073
3074 if (ctx->NewState & _NEW_PIXEL)
3075 _mesa_update_state(ctx);
3076
3077 _mesa_lock_texture(ctx, texObj);
3078 {
3079 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3080
3081 if (!texImage) {
3082 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims);
3083 }
3084 else {
3085 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3086
3087 _mesa_init_teximage_fields(ctx, texImage,
3088 width, height, depth,
3089 border, internalFormat, texFormat);
3090
3091 /* Give the texture to the driver. <pixels> may be null. */
3092 if (width > 0 && height > 0 && depth > 0) {
3093 if (compressed) {
3094 ctx->Driver.CompressedTexImage(ctx, dims, texImage,
3095 imageSize, pixels);
3096 }
3097 else {
3098 ctx->Driver.TexImage(ctx, dims, texImage, format,
3099 type, pixels, unpack);
3100 }
3101 }
3102
3103 check_gen_mipmap(ctx, target, texObj, level);
3104
3105 _mesa_update_fbo_texture(ctx, texObj, face, level);
3106
3107 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3108 }
3109 }
3110 _mesa_unlock_texture(ctx, texObj);
3111 }
3112 }
3113
3114
3115
3116 /*
3117 * Called from the API. Note that width includes the border.
3118 */
3119 void GLAPIENTRY
3120 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
3121 GLsizei width, GLint border, GLenum format,
3122 GLenum type, const GLvoid *pixels )
3123 {
3124 GET_CURRENT_CONTEXT(ctx);
3125 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1,
3126 border, format, type, 0, pixels);
3127 }
3128
3129
3130 void GLAPIENTRY
3131 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
3132 GLsizei width, GLsizei height, GLint border,
3133 GLenum format, GLenum type,
3134 const GLvoid *pixels )
3135 {
3136 GET_CURRENT_CONTEXT(ctx);
3137 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1,
3138 border, format, type, 0, pixels);
3139 }
3140
3141
3142 /*
3143 * Called by the API or display list executor.
3144 * Note that width and height include the border.
3145 */
3146 void GLAPIENTRY
3147 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
3148 GLsizei width, GLsizei height, GLsizei depth,
3149 GLint border, GLenum format, GLenum type,
3150 const GLvoid *pixels )
3151 {
3152 GET_CURRENT_CONTEXT(ctx);
3153 teximage(ctx, GL_FALSE, 3, target, level, internalFormat,
3154 width, height, depth,
3155 border, format, type, 0, pixels);
3156 }
3157
3158
3159 void GLAPIENTRY
3160 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
3161 GLsizei width, GLsizei height, GLsizei depth,
3162 GLint border, GLenum format, GLenum type,
3163 const GLvoid *pixels )
3164 {
3165 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
3166 depth, border, format, type, pixels);
3167 }
3168
3169
3170 void GLAPIENTRY
3171 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
3172 {
3173 struct gl_texture_object *texObj;
3174 struct gl_texture_image *texImage;
3175 bool valid_target;
3176 GET_CURRENT_CONTEXT(ctx);
3177 FLUSH_VERTICES(ctx, 0);
3178
3179 switch (target) {
3180 case GL_TEXTURE_2D:
3181 valid_target = ctx->Extensions.OES_EGL_image;
3182 break;
3183 case GL_TEXTURE_EXTERNAL_OES:
3184 valid_target = ctx->Extensions.OES_EGL_image_external;
3185 break;
3186 default:
3187 valid_target = false;
3188 break;
3189 }
3190
3191 if (!valid_target) {
3192 _mesa_error(ctx, GL_INVALID_ENUM,
3193 "glEGLImageTargetTexture2D(target=%d)", target);
3194 return;
3195 }
3196
3197 if (ctx->NewState & _NEW_PIXEL)
3198 _mesa_update_state(ctx);
3199
3200 texObj = _mesa_get_current_tex_object(ctx, target);
3201 _mesa_lock_texture(ctx, texObj);
3202
3203 if (texObj->Immutable) {
3204 _mesa_error(ctx, GL_INVALID_OPERATION,
3205 "glEGLImageTargetTexture2D(texture is immutable)");
3206 _mesa_unlock_texture(ctx, texObj);
3207 return;
3208 }
3209
3210 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
3211 if (!texImage) {
3212 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
3213 } else {
3214 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3215
3216 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
3217 texObj, texImage, image);
3218
3219 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3220 }
3221 _mesa_unlock_texture(ctx, texObj);
3222
3223 }
3224
3225
3226
3227 /**
3228 * Implement all the glTexSubImage1/2/3D() functions.
3229 */
3230 static void
3231 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3232 GLint xoffset, GLint yoffset, GLint zoffset,
3233 GLsizei width, GLsizei height, GLsizei depth,
3234 GLenum format, GLenum type, const GLvoid *pixels )
3235 {
3236 struct gl_texture_object *texObj;
3237 struct gl_texture_image *texImage;
3238
3239 FLUSH_VERTICES(ctx, 0);
3240
3241 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3242 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3243 dims,
3244 _mesa_lookup_enum_by_nr(target), level,
3245 xoffset, yoffset, zoffset, width, height, depth,
3246 _mesa_lookup_enum_by_nr(format),
3247 _mesa_lookup_enum_by_nr(type), pixels);
3248
3249 /* check target (proxies not allowed) */
3250 if (!legal_texsubimage_target(ctx, dims, target)) {
3251 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
3252 dims, _mesa_lookup_enum_by_nr(target));
3253 return;
3254 }
3255
3256 if (ctx->NewState & _NEW_PIXEL)
3257 _mesa_update_state(ctx);
3258
3259 if (texsubimage_error_check(ctx, dims, target, level,
3260 xoffset, yoffset, zoffset,
3261 width, height, depth, format, type)) {
3262 return; /* error was detected */
3263 }
3264
3265 texObj = _mesa_get_current_tex_object(ctx, target);
3266
3267 _mesa_lock_texture(ctx, texObj);
3268 {
3269 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3270
3271 if (width > 0 && height > 0 && depth > 0) {
3272 /* If we have a border, offset=-1 is legal. Bias by border width. */
3273 switch (dims) {
3274 case 3:
3275 if (target != GL_TEXTURE_2D_ARRAY)
3276 zoffset += texImage->Border;
3277 /* fall-through */
3278 case 2:
3279 if (target != GL_TEXTURE_1D_ARRAY)
3280 yoffset += texImage->Border;
3281 /* fall-through */
3282 case 1:
3283 xoffset += texImage->Border;
3284 }
3285
3286 ctx->Driver.TexSubImage(ctx, dims, texImage,
3287 xoffset, yoffset, zoffset,
3288 width, height, depth,
3289 format, type, pixels, &ctx->Unpack);
3290
3291 check_gen_mipmap(ctx, target, texObj, level);
3292
3293 ctx->NewState |= _NEW_TEXTURE;
3294 }
3295 }
3296 _mesa_unlock_texture(ctx, texObj);
3297 }
3298
3299
3300 void GLAPIENTRY
3301 _mesa_TexSubImage1D( GLenum target, GLint level,
3302 GLint xoffset, GLsizei width,
3303 GLenum format, GLenum type,
3304 const GLvoid *pixels )
3305 {
3306 GET_CURRENT_CONTEXT(ctx);
3307 texsubimage(ctx, 1, target, level,
3308 xoffset, 0, 0,
3309 width, 1, 1,
3310 format, type, pixels);
3311 }
3312
3313
3314 void GLAPIENTRY
3315 _mesa_TexSubImage2D( GLenum target, GLint level,
3316 GLint xoffset, GLint yoffset,
3317 GLsizei width, GLsizei height,
3318 GLenum format, GLenum type,
3319 const GLvoid *pixels )
3320 {
3321 GET_CURRENT_CONTEXT(ctx);
3322 texsubimage(ctx, 2, target, level,
3323 xoffset, yoffset, 0,
3324 width, height, 1,
3325 format, type, pixels);
3326 }
3327
3328
3329
3330 void GLAPIENTRY
3331 _mesa_TexSubImage3D( GLenum target, GLint level,
3332 GLint xoffset, GLint yoffset, GLint zoffset,
3333 GLsizei width, GLsizei height, GLsizei depth,
3334 GLenum format, GLenum type,
3335 const GLvoid *pixels )
3336 {
3337 GET_CURRENT_CONTEXT(ctx);
3338 texsubimage(ctx, 3, target, level,
3339 xoffset, yoffset, zoffset,
3340 width, height, depth,
3341 format, type, pixels);
3342 }
3343
3344
3345
3346 /**
3347 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3348 * from. This depends on whether the texture contains color or depth values.
3349 */
3350 static struct gl_renderbuffer *
3351 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3352 {
3353 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3354 /* reading from depth/stencil buffer */
3355 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3356 }
3357 else {
3358 /* copying from color buffer */
3359 return ctx->ReadBuffer->_ColorReadBuffer;
3360 }
3361 }
3362
3363
3364
3365 /**
3366 * Implement the glCopyTexImage1/2D() functions.
3367 */
3368 static void
3369 copyteximage(struct gl_context *ctx, GLuint dims,
3370 GLenum target, GLint level, GLenum internalFormat,
3371 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3372 {
3373 struct gl_texture_object *texObj;
3374 struct gl_texture_image *texImage;
3375 const GLuint face = _mesa_tex_target_to_face(target);
3376 gl_format texFormat;
3377
3378 FLUSH_VERTICES(ctx, 0);
3379
3380 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3381 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3382 dims,
3383 _mesa_lookup_enum_by_nr(target), level,
3384 _mesa_lookup_enum_by_nr(internalFormat),
3385 x, y, width, height, border);
3386
3387 if (ctx->NewState & NEW_COPY_TEX_STATE)
3388 _mesa_update_state(ctx);
3389
3390 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3391 width, height, border))
3392 return;
3393
3394 if (!_mesa_legal_texture_dimensions(ctx, target, level, width, height,
3395 1, border)) {
3396 _mesa_error(ctx, GL_INVALID_VALUE,
3397 "glCopyTexImage%uD(invalid width or height)", dims);
3398 return;
3399 }
3400
3401 texObj = _mesa_get_current_tex_object(ctx, target);
3402 assert(texObj);
3403
3404 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3405 internalFormat, GL_NONE, GL_NONE);
3406 assert(texFormat != MESA_FORMAT_NONE);
3407
3408 if (!ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3409 level, texFormat,
3410 width, height, 1, border)) {
3411 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3412 "glCopyTexImage%uD(image too large)", dims);
3413 return;
3414 }
3415
3416 if (border && ctx->Const.StripTextureBorder) {
3417 x += border;
3418 width -= border * 2;
3419 if (dims == 2) {
3420 y += border;
3421 height -= border * 2;
3422 }
3423 border = 0;
3424 }
3425
3426 _mesa_lock_texture(ctx, texObj);
3427 {
3428 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3429
3430 if (!texImage) {
3431 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3432 }
3433 else {
3434 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3435
3436 /* Free old texture image */
3437 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3438
3439 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3440 border, internalFormat, texFormat);
3441
3442 /* Allocate texture memory (no pixel data yet) */
3443 ctx->Driver.AllocTextureImageBuffer(ctx, texImage);
3444
3445 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3446 &width, &height)) {
3447 struct gl_renderbuffer *srcRb =
3448 get_copy_tex_image_source(ctx, texImage->TexFormat);
3449
3450 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3451 srcRb, srcX, srcY, width, height);
3452 }
3453
3454 check_gen_mipmap(ctx, target, texObj, level);
3455
3456 _mesa_update_fbo_texture(ctx, texObj, face, level);
3457
3458 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3459 }
3460 }
3461 _mesa_unlock_texture(ctx, texObj);
3462 }
3463
3464
3465
3466 void GLAPIENTRY
3467 _mesa_CopyTexImage1D( GLenum target, GLint level,
3468 GLenum internalFormat,
3469 GLint x, GLint y,
3470 GLsizei width, GLint border )
3471 {
3472 GET_CURRENT_CONTEXT(ctx);
3473 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3474 }
3475
3476
3477
3478 void GLAPIENTRY
3479 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3480 GLint x, GLint y, GLsizei width, GLsizei height,
3481 GLint border )
3482 {
3483 GET_CURRENT_CONTEXT(ctx);
3484 copyteximage(ctx, 2, target, level, internalFormat,
3485 x, y, width, height, border);
3486 }
3487
3488
3489
3490 /**
3491 * Implementation for glCopyTexSubImage1/2/3D() functions.
3492 */
3493 static void
3494 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3495 GLint xoffset, GLint yoffset, GLint zoffset,
3496 GLint x, GLint y, GLsizei width, GLsizei height)
3497 {
3498 struct gl_texture_object *texObj;
3499 struct gl_texture_image *texImage;
3500
3501 FLUSH_VERTICES(ctx, 0);
3502
3503 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3504 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3505 dims,
3506 _mesa_lookup_enum_by_nr(target),
3507 level, xoffset, yoffset, zoffset, x, y, width, height);
3508
3509 if (ctx->NewState & NEW_COPY_TEX_STATE)
3510 _mesa_update_state(ctx);
3511
3512 if (copytexsubimage_error_check(ctx, dims, target, level,
3513 xoffset, yoffset, zoffset, width, height)) {
3514 return;
3515 }
3516
3517 texObj = _mesa_get_current_tex_object(ctx, target);
3518
3519 _mesa_lock_texture(ctx, texObj);
3520 {
3521 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3522
3523 /* If we have a border, offset=-1 is legal. Bias by border width. */
3524 switch (dims) {
3525 case 3:
3526 if (target != GL_TEXTURE_2D_ARRAY)
3527 zoffset += texImage->Border;
3528 /* fall-through */
3529 case 2:
3530 if (target != GL_TEXTURE_1D_ARRAY)
3531 yoffset += texImage->Border;
3532 /* fall-through */
3533 case 1:
3534 xoffset += texImage->Border;
3535 }
3536
3537 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3538 &width, &height)) {
3539 struct gl_renderbuffer *srcRb =
3540 get_copy_tex_image_source(ctx, texImage->TexFormat);
3541
3542 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3543 xoffset, yoffset, zoffset,
3544 srcRb, x, y, width, height);
3545
3546 check_gen_mipmap(ctx, target, texObj, level);
3547
3548 ctx->NewState |= _NEW_TEXTURE;
3549 }
3550 }
3551 _mesa_unlock_texture(ctx, texObj);
3552 }
3553
3554
3555 void GLAPIENTRY
3556 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3557 GLint xoffset, GLint x, GLint y, GLsizei width )
3558 {
3559 GET_CURRENT_CONTEXT(ctx);
3560 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3561 }
3562
3563
3564
3565 void GLAPIENTRY
3566 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3567 GLint xoffset, GLint yoffset,
3568 GLint x, GLint y, GLsizei width, GLsizei height )
3569 {
3570 GET_CURRENT_CONTEXT(ctx);
3571 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3572 width, height);
3573 }
3574
3575
3576
3577 void GLAPIENTRY
3578 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3579 GLint xoffset, GLint yoffset, GLint zoffset,
3580 GLint x, GLint y, GLsizei width, GLsizei height )
3581 {
3582 GET_CURRENT_CONTEXT(ctx);
3583 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3584 x, y, width, height);
3585 }
3586
3587
3588
3589
3590 /**********************************************************************/
3591 /****** Compressed Textures ******/
3592 /**********************************************************************/
3593
3594
3595 /**
3596 * Error checking for glCompressedTexSubImage[123]D().
3597 * \return error code or GL_NO_ERROR.
3598 */
3599 static GLenum
3600 compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
3601 GLenum target, GLint level,
3602 GLint xoffset, GLint yoffset, GLint zoffset,
3603 GLsizei width, GLsizei height, GLsizei depth,
3604 GLenum format, GLsizei imageSize)
3605 {
3606 struct gl_texture_object *texObj;
3607 struct gl_texture_image *texImage;
3608 GLint expectedSize;
3609 GLboolean targetOK;
3610
3611 switch (dims) {
3612 case 2:
3613 switch (target) {
3614 case GL_TEXTURE_2D:
3615 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
3616 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
3617 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
3618 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
3619 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
3620 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
3621 targetOK = GL_TRUE;
3622 break;
3623 default:
3624 targetOK = GL_FALSE;
3625 break;
3626 }
3627 break;
3628 case 3:
3629 targetOK = (target == GL_TEXTURE_2D_ARRAY);
3630 break;
3631 default:
3632 assert(dims == 1);
3633 /* no 1D compressed textures at this time */
3634 targetOK = GL_FALSE;
3635 break;
3636 }
3637
3638 if (!targetOK) {
3639 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
3640 dims);
3641 return GL_TRUE;
3642 }
3643
3644 /* this will catch any invalid compressed format token */
3645 if (!_mesa_is_compressed_format(ctx, format)) {
3646 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(format)",
3647 dims);
3648 return GL_TRUE;
3649 }
3650
3651 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
3652 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
3653 dims, level);
3654 return GL_TRUE;
3655 }
3656
3657 expectedSize = compressed_tex_size(width, height, depth, format);
3658 if (expectedSize != imageSize) {
3659 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
3660 dims, imageSize);
3661 return GL_TRUE;
3662 }
3663
3664 texObj = _mesa_get_current_tex_object(ctx, target);
3665 if (!texObj) {
3666 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3667 "glCompressedTexSubImage%uD()", dims);
3668 return GL_TRUE;
3669 }
3670
3671 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3672 if (!texImage) {
3673 _mesa_error(ctx, GL_INVALID_OPERATION,
3674 "glCompressedTexSubImage%uD(invalid texture image)", dims);
3675 return GL_TRUE;
3676 }
3677
3678 if ((GLint) format != texImage->InternalFormat) {
3679 _mesa_error(ctx, GL_INVALID_OPERATION,
3680 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3681 return GL_TRUE;
3682 }
3683
3684 if (compressedteximage_only_format(ctx, format)) {
3685 _mesa_error(ctx, GL_INVALID_OPERATION,
3686 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3687 , dims, format);
3688 return GL_TRUE;
3689 }
3690
3691 if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
3692 texImage, xoffset, yoffset, zoffset,
3693 width, height, depth)) {
3694 return GL_TRUE;
3695 }
3696
3697 return GL_FALSE;
3698 }
3699
3700
3701 void GLAPIENTRY
3702 _mesa_CompressedTexImage1D(GLenum target, GLint level,
3703 GLenum internalFormat, GLsizei width,
3704 GLint border, GLsizei imageSize,
3705 const GLvoid *data)
3706 {
3707 GET_CURRENT_CONTEXT(ctx);
3708 teximage(ctx, GL_TRUE, 1, target, level, internalFormat,
3709 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data);
3710 }
3711
3712
3713 void GLAPIENTRY
3714 _mesa_CompressedTexImage2D(GLenum target, GLint level,
3715 GLenum internalFormat, GLsizei width,
3716 GLsizei height, GLint border, GLsizei imageSize,
3717 const GLvoid *data)
3718 {
3719 GET_CURRENT_CONTEXT(ctx);
3720 teximage(ctx, GL_TRUE, 2, target, level, internalFormat,
3721 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data);
3722 }
3723
3724
3725 void GLAPIENTRY
3726 _mesa_CompressedTexImage3D(GLenum target, GLint level,
3727 GLenum internalFormat, GLsizei width,
3728 GLsizei height, GLsizei depth, GLint border,
3729 GLsizei imageSize, const GLvoid *data)
3730 {
3731 GET_CURRENT_CONTEXT(ctx);
3732 teximage(ctx, GL_TRUE, 3, target, level, internalFormat,
3733 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data);
3734 }
3735
3736
3737 /**
3738 * Common helper for glCompressedTexSubImage1/2/3D().
3739 */
3740 static void
3741 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3742 GLint xoffset, GLint yoffset, GLint zoffset,
3743 GLsizei width, GLsizei height, GLsizei depth,
3744 GLenum format, GLsizei imageSize, const GLvoid *data)
3745 {
3746 struct gl_texture_object *texObj;
3747 struct gl_texture_image *texImage;
3748 GET_CURRENT_CONTEXT(ctx);
3749 FLUSH_VERTICES(ctx, 0);
3750
3751 if (compressed_subtexture_error_check(ctx, dims, target, level,
3752 xoffset, yoffset, zoffset,
3753 width, height, depth,
3754 format, imageSize)) {
3755 return;
3756 }
3757
3758 texObj = _mesa_get_current_tex_object(ctx, target);
3759
3760 _mesa_lock_texture(ctx, texObj);
3761 {
3762 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3763 assert(texImage);
3764
3765 if (width > 0 && height > 0 && depth > 0) {
3766 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3767 xoffset, yoffset, zoffset,
3768 width, height, depth,
3769 format, imageSize, data);
3770
3771 check_gen_mipmap(ctx, target, texObj, level);
3772
3773 ctx->NewState |= _NEW_TEXTURE;
3774 }
3775 }
3776 _mesa_unlock_texture(ctx, texObj);
3777 }
3778
3779
3780 void GLAPIENTRY
3781 _mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
3782 GLsizei width, GLenum format,
3783 GLsizei imageSize, const GLvoid *data)
3784 {
3785 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3786 format, imageSize, data);
3787 }
3788
3789
3790 void GLAPIENTRY
3791 _mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
3792 GLint yoffset, GLsizei width, GLsizei height,
3793 GLenum format, GLsizei imageSize,
3794 const GLvoid *data)
3795 {
3796 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3797 width, height, 1, format, imageSize, data);
3798 }
3799
3800
3801 void GLAPIENTRY
3802 _mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
3803 GLint yoffset, GLint zoffset, GLsizei width,
3804 GLsizei height, GLsizei depth, GLenum format,
3805 GLsizei imageSize, const GLvoid *data)
3806 {
3807 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3808 width, height, depth, format, imageSize, data);
3809 }
3810
3811 static gl_format
3812 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3813 {
3814 switch (internalFormat) {
3815 case GL_ALPHA8:
3816 return MESA_FORMAT_A8;
3817 case GL_ALPHA16:
3818 return MESA_FORMAT_A16;
3819 case GL_ALPHA16F_ARB:
3820 return MESA_FORMAT_ALPHA_FLOAT16;
3821 case GL_ALPHA32F_ARB:
3822 return MESA_FORMAT_ALPHA_FLOAT32;
3823 case GL_ALPHA8I_EXT:
3824 return MESA_FORMAT_ALPHA_INT8;
3825 case GL_ALPHA16I_EXT:
3826 return MESA_FORMAT_ALPHA_INT16;
3827 case GL_ALPHA32I_EXT:
3828 return MESA_FORMAT_ALPHA_INT32;
3829 case GL_ALPHA8UI_EXT:
3830 return MESA_FORMAT_ALPHA_UINT8;
3831 case GL_ALPHA16UI_EXT:
3832 return MESA_FORMAT_ALPHA_UINT16;
3833 case GL_ALPHA32UI_EXT:
3834 return MESA_FORMAT_ALPHA_UINT32;
3835 case GL_LUMINANCE8:
3836 return MESA_FORMAT_L8;
3837 case GL_LUMINANCE16:
3838 return MESA_FORMAT_L16;
3839 case GL_LUMINANCE16F_ARB:
3840 return MESA_FORMAT_LUMINANCE_FLOAT16;
3841 case GL_LUMINANCE32F_ARB:
3842 return MESA_FORMAT_LUMINANCE_FLOAT32;
3843 case GL_LUMINANCE8I_EXT:
3844 return MESA_FORMAT_LUMINANCE_INT8;
3845 case GL_LUMINANCE16I_EXT:
3846 return MESA_FORMAT_LUMINANCE_INT16;
3847 case GL_LUMINANCE32I_EXT:
3848 return MESA_FORMAT_LUMINANCE_INT32;
3849 case GL_LUMINANCE8UI_EXT:
3850 return MESA_FORMAT_LUMINANCE_UINT8;
3851 case GL_LUMINANCE16UI_EXT:
3852 return MESA_FORMAT_LUMINANCE_UINT16;
3853 case GL_LUMINANCE32UI_EXT:
3854 return MESA_FORMAT_LUMINANCE_UINT32;
3855 case GL_LUMINANCE8_ALPHA8:
3856 return MESA_FORMAT_AL88;
3857 case GL_LUMINANCE16_ALPHA16:
3858 return MESA_FORMAT_AL1616;
3859 case GL_LUMINANCE_ALPHA16F_ARB:
3860 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3861 case GL_LUMINANCE_ALPHA32F_ARB:
3862 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3863 case GL_LUMINANCE_ALPHA8I_EXT:
3864 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3865 case GL_LUMINANCE_ALPHA16I_EXT:
3866 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3867 case GL_LUMINANCE_ALPHA32I_EXT:
3868 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3869 case GL_LUMINANCE_ALPHA8UI_EXT:
3870 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3871 case GL_LUMINANCE_ALPHA16UI_EXT:
3872 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3873 case GL_LUMINANCE_ALPHA32UI_EXT:
3874 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3875 case GL_INTENSITY8:
3876 return MESA_FORMAT_I8;
3877 case GL_INTENSITY16:
3878 return MESA_FORMAT_I16;
3879 case GL_INTENSITY16F_ARB:
3880 return MESA_FORMAT_INTENSITY_FLOAT16;
3881 case GL_INTENSITY32F_ARB:
3882 return MESA_FORMAT_INTENSITY_FLOAT32;
3883 case GL_INTENSITY8I_EXT:
3884 return MESA_FORMAT_INTENSITY_INT8;
3885 case GL_INTENSITY16I_EXT:
3886 return MESA_FORMAT_INTENSITY_INT16;
3887 case GL_INTENSITY32I_EXT:
3888 return MESA_FORMAT_INTENSITY_INT32;
3889 case GL_INTENSITY8UI_EXT:
3890 return MESA_FORMAT_INTENSITY_UINT8;
3891 case GL_INTENSITY16UI_EXT:
3892 return MESA_FORMAT_INTENSITY_UINT16;
3893 case GL_INTENSITY32UI_EXT:
3894 return MESA_FORMAT_INTENSITY_UINT32;
3895 case GL_RGBA8:
3896 return MESA_FORMAT_RGBA8888_REV;
3897 case GL_RGBA16:
3898 return MESA_FORMAT_RGBA_16;
3899 case GL_RGBA16F_ARB:
3900 return MESA_FORMAT_RGBA_FLOAT16;
3901 case GL_RGBA32F_ARB:
3902 return MESA_FORMAT_RGBA_FLOAT32;
3903 case GL_RGBA8I_EXT:
3904 return MESA_FORMAT_RGBA_INT8;
3905 case GL_RGBA16I_EXT:
3906 return MESA_FORMAT_RGBA_INT16;
3907 case GL_RGBA32I_EXT:
3908 return MESA_FORMAT_RGBA_INT32;
3909 case GL_RGBA8UI_EXT:
3910 return MESA_FORMAT_RGBA_UINT8;
3911 case GL_RGBA16UI_EXT:
3912 return MESA_FORMAT_RGBA_UINT16;
3913 case GL_RGBA32UI_EXT:
3914 return MESA_FORMAT_RGBA_UINT32;
3915
3916 case GL_RG8:
3917 return MESA_FORMAT_GR88;
3918 case GL_RG16:
3919 return MESA_FORMAT_RG1616;
3920 case GL_RG16F:
3921 return MESA_FORMAT_RG_FLOAT16;
3922 case GL_RG32F:
3923 return MESA_FORMAT_RG_FLOAT32;
3924 case GL_RG8I:
3925 return MESA_FORMAT_RG_INT8;
3926 case GL_RG16I:
3927 return MESA_FORMAT_RG_INT16;
3928 case GL_RG32I:
3929 return MESA_FORMAT_RG_INT32;
3930 case GL_RG8UI:
3931 return MESA_FORMAT_RG_UINT8;
3932 case GL_RG16UI:
3933 return MESA_FORMAT_RG_UINT16;
3934 case GL_RG32UI:
3935 return MESA_FORMAT_RG_UINT32;
3936
3937 case GL_R8:
3938 return MESA_FORMAT_R8;
3939 case GL_R16:
3940 return MESA_FORMAT_R16;
3941 case GL_R16F:
3942 return MESA_FORMAT_R_FLOAT16;
3943 case GL_R32F:
3944 return MESA_FORMAT_R_FLOAT32;
3945 case GL_R8I:
3946 return MESA_FORMAT_R_INT8;
3947 case GL_R16I:
3948 return MESA_FORMAT_R_INT16;
3949 case GL_R32I:
3950 return MESA_FORMAT_R_INT32;
3951 case GL_R8UI:
3952 return MESA_FORMAT_R_UINT8;
3953 case GL_R16UI:
3954 return MESA_FORMAT_R_UINT16;
3955 case GL_R32UI:
3956 return MESA_FORMAT_R_UINT32;
3957
3958 case GL_RGB32F:
3959 return MESA_FORMAT_RGB_FLOAT32;
3960 case GL_RGB32UI:
3961 return MESA_FORMAT_RGB_UINT32;
3962 case GL_RGB32I:
3963 return MESA_FORMAT_RGB_INT32;
3964
3965 default:
3966 return MESA_FORMAT_NONE;
3967 }
3968 }
3969
3970 static gl_format
3971 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3972 {
3973 gl_format format = get_texbuffer_format(ctx, internalFormat);
3974 GLenum datatype;
3975
3976 if (format == MESA_FORMAT_NONE)
3977 return MESA_FORMAT_NONE;
3978
3979 datatype = _mesa_get_format_datatype(format);
3980 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3981 return MESA_FORMAT_NONE;
3982
3983 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3984 return MESA_FORMAT_NONE;
3985
3986 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3987 * any mention of R/RG formats, but they appear in the GL 3.1 core
3988 * specification.
3989 */
3990 if (ctx->Version <= 30) {
3991 GLenum base_format = _mesa_get_format_base_format(format);
3992
3993 if (base_format == GL_R || base_format == GL_RG)
3994 return MESA_FORMAT_NONE;
3995 }
3996
3997 if (!ctx->Extensions.ARB_texture_buffer_object_rgb32) {
3998 GLenum base_format = _mesa_get_format_base_format(format);
3999 if (base_format == GL_RGB)
4000 return MESA_FORMAT_NONE;
4001 }
4002 return format;
4003 }
4004
4005
4006 /** GL_ARB_texture_buffer_object */
4007 void GLAPIENTRY
4008 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
4009 {
4010 struct gl_texture_object *texObj;
4011 struct gl_buffer_object *bufObj;
4012 gl_format format;
4013
4014 GET_CURRENT_CONTEXT(ctx);
4015 FLUSH_VERTICES(ctx, 0);
4016
4017 if (!(ctx->API == API_OPENGL_CORE &&
4018 ctx->Extensions.ARB_texture_buffer_object)) {
4019 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
4020 return;
4021 }
4022
4023 if (target != GL_TEXTURE_BUFFER_ARB) {
4024 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
4025 return;
4026 }
4027
4028 format = validate_texbuffer_format(ctx, internalFormat);
4029 if (format == MESA_FORMAT_NONE) {
4030 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
4031 internalFormat);
4032 return;
4033 }
4034
4035 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4036 if (buffer && !bufObj) {
4037 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
4038 return;
4039 }
4040
4041 texObj = _mesa_get_current_tex_object(ctx, target);
4042
4043 _mesa_lock_texture(ctx, texObj);
4044 {
4045 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
4046 texObj->BufferObjectFormat = internalFormat;
4047 texObj->_BufferObjectFormat = format;
4048 }
4049 _mesa_unlock_texture(ctx, texObj);
4050 }