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r600g: pad the DMA CS to a multiple of 8 dwords
[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 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
194 */
195 if (ctx->Extensions.ANGLE_texture_compression_dxt) {
196 switch (internalFormat) {
197 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
198 return GL_RGB;
199 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
200 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
201 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
202 return GL_RGBA;
203 default:
204 ; /* fallthrough */
205 }
206 }
207
208 if (_mesa_is_desktop_gl(ctx)
209 && ctx->Extensions.ANGLE_texture_compression_dxt) {
210 switch (internalFormat) {
211 case GL_RGB_S3TC:
212 case GL_RGB4_S3TC:
213 return GL_RGB;
214 case GL_RGBA_S3TC:
215 case GL_RGBA4_S3TC:
216 return GL_RGBA;
217 default:
218 ; /* fallthrough */
219 }
220 }
221
222 if (ctx->Extensions.MESA_ycbcr_texture) {
223 if (internalFormat == GL_YCBCR_MESA)
224 return GL_YCBCR_MESA;
225 }
226
227 if (ctx->Extensions.ARB_texture_float) {
228 switch (internalFormat) {
229 case GL_ALPHA16F_ARB:
230 case GL_ALPHA32F_ARB:
231 return GL_ALPHA;
232 case GL_RGBA16F_ARB:
233 case GL_RGBA32F_ARB:
234 return GL_RGBA;
235 case GL_RGB16F_ARB:
236 case GL_RGB32F_ARB:
237 return GL_RGB;
238 case GL_INTENSITY16F_ARB:
239 case GL_INTENSITY32F_ARB:
240 return GL_INTENSITY;
241 case GL_LUMINANCE16F_ARB:
242 case GL_LUMINANCE32F_ARB:
243 return GL_LUMINANCE;
244 case GL_LUMINANCE_ALPHA16F_ARB:
245 case GL_LUMINANCE_ALPHA32F_ARB:
246 return GL_LUMINANCE_ALPHA;
247 default:
248 ; /* fallthrough */
249 }
250 }
251
252 if (ctx->Extensions.ATI_envmap_bumpmap) {
253 switch (internalFormat) {
254 case GL_DUDV_ATI:
255 case GL_DU8DV8_ATI:
256 return GL_DUDV_ATI;
257 default:
258 ; /* fallthrough */
259 }
260 }
261
262 if (ctx->Extensions.EXT_texture_snorm) {
263 switch (internalFormat) {
264 case GL_RED_SNORM:
265 case GL_R8_SNORM:
266 case GL_R16_SNORM:
267 return GL_RED;
268 case GL_RG_SNORM:
269 case GL_RG8_SNORM:
270 case GL_RG16_SNORM:
271 return GL_RG;
272 case GL_RGB_SNORM:
273 case GL_RGB8_SNORM:
274 case GL_RGB16_SNORM:
275 return GL_RGB;
276 case GL_RGBA_SNORM:
277 case GL_RGBA8_SNORM:
278 case GL_RGBA16_SNORM:
279 return GL_RGBA;
280 case GL_ALPHA_SNORM:
281 case GL_ALPHA8_SNORM:
282 case GL_ALPHA16_SNORM:
283 return GL_ALPHA;
284 case GL_LUMINANCE_SNORM:
285 case GL_LUMINANCE8_SNORM:
286 case GL_LUMINANCE16_SNORM:
287 return GL_LUMINANCE;
288 case GL_LUMINANCE_ALPHA_SNORM:
289 case GL_LUMINANCE8_ALPHA8_SNORM:
290 case GL_LUMINANCE16_ALPHA16_SNORM:
291 return GL_LUMINANCE_ALPHA;
292 case GL_INTENSITY_SNORM:
293 case GL_INTENSITY8_SNORM:
294 case GL_INTENSITY16_SNORM:
295 return GL_INTENSITY;
296 default:
297 ; /* fallthrough */
298 }
299 }
300
301 if (ctx->Extensions.EXT_packed_depth_stencil) {
302 switch (internalFormat) {
303 case GL_DEPTH_STENCIL_EXT:
304 case GL_DEPTH24_STENCIL8_EXT:
305 return GL_DEPTH_STENCIL_EXT;
306 default:
307 ; /* fallthrough */
308 }
309 }
310
311 if (ctx->Extensions.EXT_texture_sRGB) {
312 switch (internalFormat) {
313 case GL_SRGB_EXT:
314 case GL_SRGB8_EXT:
315 case GL_COMPRESSED_SRGB_EXT:
316 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
317 return GL_RGB;
318 case GL_SRGB_ALPHA_EXT:
319 case GL_SRGB8_ALPHA8_EXT:
320 case GL_COMPRESSED_SRGB_ALPHA_EXT:
321 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
322 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
323 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
324 return GL_RGBA;
325 case GL_SLUMINANCE_ALPHA_EXT:
326 case GL_SLUMINANCE8_ALPHA8_EXT:
327 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
328 return GL_LUMINANCE_ALPHA;
329 case GL_SLUMINANCE_EXT:
330 case GL_SLUMINANCE8_EXT:
331 case GL_COMPRESSED_SLUMINANCE_EXT:
332 return GL_LUMINANCE;
333 default:
334 ; /* fallthrough */
335 }
336 }
337
338 if (ctx->Version >= 30 ||
339 ctx->Extensions.EXT_texture_integer) {
340 switch (internalFormat) {
341 case GL_RGBA8UI_EXT:
342 case GL_RGBA16UI_EXT:
343 case GL_RGBA32UI_EXT:
344 case GL_RGBA8I_EXT:
345 case GL_RGBA16I_EXT:
346 case GL_RGBA32I_EXT:
347 case GL_RGB10_A2UI:
348 return GL_RGBA;
349 case GL_RGB8UI_EXT:
350 case GL_RGB16UI_EXT:
351 case GL_RGB32UI_EXT:
352 case GL_RGB8I_EXT:
353 case GL_RGB16I_EXT:
354 case GL_RGB32I_EXT:
355 return GL_RGB;
356 }
357 }
358
359 if (ctx->Extensions.EXT_texture_integer) {
360 switch (internalFormat) {
361 case GL_ALPHA8UI_EXT:
362 case GL_ALPHA16UI_EXT:
363 case GL_ALPHA32UI_EXT:
364 case GL_ALPHA8I_EXT:
365 case GL_ALPHA16I_EXT:
366 case GL_ALPHA32I_EXT:
367 return GL_ALPHA;
368 case GL_INTENSITY8UI_EXT:
369 case GL_INTENSITY16UI_EXT:
370 case GL_INTENSITY32UI_EXT:
371 case GL_INTENSITY8I_EXT:
372 case GL_INTENSITY16I_EXT:
373 case GL_INTENSITY32I_EXT:
374 return GL_INTENSITY;
375 case GL_LUMINANCE8UI_EXT:
376 case GL_LUMINANCE16UI_EXT:
377 case GL_LUMINANCE32UI_EXT:
378 case GL_LUMINANCE8I_EXT:
379 case GL_LUMINANCE16I_EXT:
380 case GL_LUMINANCE32I_EXT:
381 return GL_LUMINANCE;
382 case GL_LUMINANCE_ALPHA8UI_EXT:
383 case GL_LUMINANCE_ALPHA16UI_EXT:
384 case GL_LUMINANCE_ALPHA32UI_EXT:
385 case GL_LUMINANCE_ALPHA8I_EXT:
386 case GL_LUMINANCE_ALPHA16I_EXT:
387 case GL_LUMINANCE_ALPHA32I_EXT:
388 return GL_LUMINANCE_ALPHA;
389 default:
390 ; /* fallthrough */
391 }
392 }
393
394 if (ctx->Extensions.ARB_texture_rg) {
395 switch (internalFormat) {
396 case GL_R16F:
397 /* R16F depends on both ARB_half_float_pixel and ARB_texture_float.
398 */
399 if (!ctx->Extensions.ARB_half_float_pixel)
400 break;
401 /* FALLTHROUGH */
402 case GL_R32F:
403 if (!ctx->Extensions.ARB_texture_float)
404 break;
405 return GL_RED;
406 case GL_R8I:
407 case GL_R8UI:
408 case GL_R16I:
409 case GL_R16UI:
410 case GL_R32I:
411 case GL_R32UI:
412 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
413 break;
414 /* FALLTHROUGH */
415 case GL_R8:
416 case GL_R16:
417 case GL_RED:
418 case GL_COMPRESSED_RED:
419 return GL_RED;
420
421 case GL_RG16F:
422 /* RG16F depends on both ARB_half_float_pixel and ARB_texture_float.
423 */
424 if (!ctx->Extensions.ARB_half_float_pixel)
425 break;
426 /* FALLTHROUGH */
427 case GL_RG32F:
428 if (!ctx->Extensions.ARB_texture_float)
429 break;
430 return GL_RG;
431 case GL_RG8I:
432 case GL_RG8UI:
433 case GL_RG16I:
434 case GL_RG16UI:
435 case GL_RG32I:
436 case GL_RG32UI:
437 if (ctx->Version < 30 && !ctx->Extensions.EXT_texture_integer)
438 break;
439 /* FALLTHROUGH */
440 case GL_RG:
441 case GL_RG8:
442 case GL_RG16:
443 case GL_COMPRESSED_RG:
444 return GL_RG;
445 default:
446 ; /* fallthrough */
447 }
448 }
449
450 if (ctx->Extensions.EXT_texture_shared_exponent) {
451 switch (internalFormat) {
452 case GL_RGB9_E5_EXT:
453 return GL_RGB;
454 default:
455 ; /* fallthrough */
456 }
457 }
458
459 if (ctx->Extensions.EXT_packed_float) {
460 switch (internalFormat) {
461 case GL_R11F_G11F_B10F_EXT:
462 return GL_RGB;
463 default:
464 ; /* fallthrough */
465 }
466 }
467
468 if (ctx->Extensions.ARB_depth_buffer_float) {
469 switch (internalFormat) {
470 case GL_DEPTH_COMPONENT32F:
471 return GL_DEPTH_COMPONENT;
472 case GL_DEPTH32F_STENCIL8:
473 return GL_DEPTH_STENCIL;
474 default:
475 ; /* fallthrough */
476 }
477 }
478
479 if (ctx->Extensions.ARB_texture_compression_rgtc) {
480 switch (internalFormat) {
481 case GL_COMPRESSED_RED_RGTC1:
482 case GL_COMPRESSED_SIGNED_RED_RGTC1:
483 return GL_RED;
484 case GL_COMPRESSED_RG_RGTC2:
485 case GL_COMPRESSED_SIGNED_RG_RGTC2:
486 return GL_RG;
487 default:
488 ; /* fallthrough */
489 }
490 }
491
492 if (ctx->Extensions.EXT_texture_compression_latc) {
493 switch (internalFormat) {
494 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
495 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
496 return GL_LUMINANCE;
497 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
498 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
499 return GL_LUMINANCE_ALPHA;
500 default:
501 ; /* fallthrough */
502 }
503 }
504
505 if (ctx->Extensions.ATI_texture_compression_3dc) {
506 switch (internalFormat) {
507 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
508 return GL_LUMINANCE_ALPHA;
509 default:
510 ; /* fallthrough */
511 }
512 }
513
514 if (ctx->Extensions.OES_compressed_ETC1_RGB8_texture) {
515 switch (internalFormat) {
516 case GL_ETC1_RGB8_OES:
517 return GL_RGB;
518 default:
519 ; /* fallthrough */
520 }
521 }
522
523 if (_mesa_is_gles3(ctx)) {
524 switch (internalFormat) {
525 case GL_COMPRESSED_RGB8_ETC2:
526 case GL_COMPRESSED_SRGB8_ETC2:
527 return GL_RGB;
528 case GL_COMPRESSED_RGBA8_ETC2_EAC:
529 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC:
530 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2:
531 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2:
532 return GL_RGBA;
533 case GL_COMPRESSED_R11_EAC:
534 case GL_COMPRESSED_SIGNED_R11_EAC:
535 return GL_RED;
536 case GL_COMPRESSED_RG11_EAC:
537 case GL_COMPRESSED_SIGNED_RG11_EAC:
538 return GL_RG;
539 default:
540 ; /* fallthrough */
541 }
542 }
543
544 if (ctx->API == API_OPENGLES) {
545 switch (internalFormat) {
546 case GL_PALETTE4_RGB8_OES:
547 case GL_PALETTE4_R5_G6_B5_OES:
548 case GL_PALETTE8_RGB8_OES:
549 case GL_PALETTE8_R5_G6_B5_OES:
550 return GL_RGB;
551 case GL_PALETTE4_RGBA8_OES:
552 case GL_PALETTE8_RGB5_A1_OES:
553 case GL_PALETTE4_RGBA4_OES:
554 case GL_PALETTE4_RGB5_A1_OES:
555 case GL_PALETTE8_RGBA8_OES:
556 case GL_PALETTE8_RGBA4_OES:
557 return GL_RGBA;
558 default:
559 ; /* fallthrough */
560 }
561 }
562
563 return -1; /* error */
564 }
565
566
567 /**
568 * For cube map faces, return a face index in [0,5].
569 * For other targets return 0;
570 */
571 GLuint
572 _mesa_tex_target_to_face(GLenum target)
573 {
574 if (_mesa_is_cube_face(target))
575 return (GLuint) target - (GLuint) GL_TEXTURE_CUBE_MAP_POSITIVE_X;
576 else
577 return 0;
578 }
579
580
581
582 /**
583 * Install gl_texture_image in a gl_texture_object according to the target
584 * and level parameters.
585 *
586 * \param tObj texture object.
587 * \param target texture target.
588 * \param level image level.
589 * \param texImage texture image.
590 */
591 static void
592 set_tex_image(struct gl_texture_object *tObj,
593 GLenum target, GLint level,
594 struct gl_texture_image *texImage)
595 {
596 const GLuint face = _mesa_tex_target_to_face(target);
597
598 ASSERT(tObj);
599 ASSERT(texImage);
600 if (target == GL_TEXTURE_RECTANGLE_NV || target == GL_TEXTURE_EXTERNAL_OES)
601 assert(level == 0);
602
603 tObj->Image[face][level] = texImage;
604
605 /* Set the 'back' pointer */
606 texImage->TexObject = tObj;
607 texImage->Level = level;
608 texImage->Face = face;
609 }
610
611
612 /**
613 * Allocate a texture image structure.
614 *
615 * Called via ctx->Driver.NewTextureImage() unless overriden by a device
616 * driver.
617 *
618 * \return a pointer to gl_texture_image struct with all fields initialized to
619 * zero.
620 */
621 struct gl_texture_image *
622 _mesa_new_texture_image( struct gl_context *ctx )
623 {
624 (void) ctx;
625 return CALLOC_STRUCT(gl_texture_image);
626 }
627
628
629 /**
630 * Free a gl_texture_image and associated data.
631 * This function is a fallback called via ctx->Driver.DeleteTextureImage().
632 *
633 * \param texImage texture image.
634 *
635 * Free the texture image structure and the associated image data.
636 */
637 void
638 _mesa_delete_texture_image(struct gl_context *ctx,
639 struct gl_texture_image *texImage)
640 {
641 /* Free texImage->Data and/or any other driver-specific texture
642 * image storage.
643 */
644 ASSERT(ctx->Driver.FreeTextureImageBuffer);
645 ctx->Driver.FreeTextureImageBuffer( ctx, texImage );
646 free(texImage);
647 }
648
649
650 /**
651 * Test if a target is a proxy target.
652 *
653 * \param target texture target.
654 *
655 * \return GL_TRUE if the target is a proxy target, GL_FALSE otherwise.
656 */
657 GLboolean
658 _mesa_is_proxy_texture(GLenum target)
659 {
660 /*
661 * NUM_TEXTURE_TARGETS should match number of terms below, except there's no
662 * proxy for GL_TEXTURE_BUFFER and GL_TEXTURE_EXTERNAL_OES.
663 */
664 assert(NUM_TEXTURE_TARGETS == 8 + 2);
665
666 return (target == GL_PROXY_TEXTURE_1D ||
667 target == GL_PROXY_TEXTURE_2D ||
668 target == GL_PROXY_TEXTURE_3D ||
669 target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
670 target == GL_PROXY_TEXTURE_RECTANGLE_NV ||
671 target == GL_PROXY_TEXTURE_1D_ARRAY_EXT ||
672 target == GL_PROXY_TEXTURE_2D_ARRAY_EXT ||
673 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY);
674 }
675
676
677 /**
678 * Return the proxy target which corresponds to the given texture target
679 */
680 GLenum
681 _mesa_get_proxy_target(GLenum target)
682 {
683 switch (target) {
684 case GL_TEXTURE_1D:
685 case GL_PROXY_TEXTURE_1D:
686 return GL_PROXY_TEXTURE_1D;
687 case GL_TEXTURE_2D:
688 case GL_PROXY_TEXTURE_2D:
689 return GL_PROXY_TEXTURE_2D;
690 case GL_TEXTURE_3D:
691 case GL_PROXY_TEXTURE_3D:
692 return GL_PROXY_TEXTURE_3D;
693 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
694 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
695 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
696 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
697 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
698 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
699 case GL_TEXTURE_CUBE_MAP_ARB:
700 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
701 return GL_PROXY_TEXTURE_CUBE_MAP_ARB;
702 case GL_TEXTURE_RECTANGLE_NV:
703 case GL_PROXY_TEXTURE_RECTANGLE_NV:
704 return GL_PROXY_TEXTURE_RECTANGLE_NV;
705 case GL_TEXTURE_1D_ARRAY_EXT:
706 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
707 return GL_PROXY_TEXTURE_1D_ARRAY_EXT;
708 case GL_TEXTURE_2D_ARRAY_EXT:
709 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
710 return GL_PROXY_TEXTURE_2D_ARRAY_EXT;
711 case GL_TEXTURE_CUBE_MAP_ARRAY:
712 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
713 return GL_PROXY_TEXTURE_CUBE_MAP_ARRAY;
714 default:
715 _mesa_problem(NULL, "unexpected target in _mesa_get_proxy_target()");
716 return 0;
717 }
718 }
719
720
721 /**
722 * Get the texture object that corresponds to the target of the given
723 * texture unit. The target should have already been checked for validity.
724 *
725 * \param ctx GL context.
726 * \param texUnit texture unit.
727 * \param target texture target.
728 *
729 * \return pointer to the texture object on success, or NULL on failure.
730 */
731 struct gl_texture_object *
732 _mesa_select_tex_object(struct gl_context *ctx,
733 const struct gl_texture_unit *texUnit,
734 GLenum target)
735 {
736 const GLboolean arrayTex = (ctx->Extensions.MESA_texture_array ||
737 ctx->Extensions.EXT_texture_array);
738
739 switch (target) {
740 case GL_TEXTURE_1D:
741 return texUnit->CurrentTex[TEXTURE_1D_INDEX];
742 case GL_PROXY_TEXTURE_1D:
743 return ctx->Texture.ProxyTex[TEXTURE_1D_INDEX];
744 case GL_TEXTURE_2D:
745 return texUnit->CurrentTex[TEXTURE_2D_INDEX];
746 case GL_PROXY_TEXTURE_2D:
747 return ctx->Texture.ProxyTex[TEXTURE_2D_INDEX];
748 case GL_TEXTURE_3D:
749 return texUnit->CurrentTex[TEXTURE_3D_INDEX];
750 case GL_PROXY_TEXTURE_3D:
751 return ctx->Texture.ProxyTex[TEXTURE_3D_INDEX];
752 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
753 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
754 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
755 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
756 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
757 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
758 case GL_TEXTURE_CUBE_MAP_ARB:
759 return ctx->Extensions.ARB_texture_cube_map
760 ? texUnit->CurrentTex[TEXTURE_CUBE_INDEX] : NULL;
761 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
762 return ctx->Extensions.ARB_texture_cube_map
763 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_INDEX] : NULL;
764 case GL_TEXTURE_CUBE_MAP_ARRAY:
765 return ctx->Extensions.ARB_texture_cube_map_array
766 ? texUnit->CurrentTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
767 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
768 return ctx->Extensions.ARB_texture_cube_map_array
769 ? ctx->Texture.ProxyTex[TEXTURE_CUBE_ARRAY_INDEX] : NULL;
770 case GL_TEXTURE_RECTANGLE_NV:
771 return ctx->Extensions.NV_texture_rectangle
772 ? texUnit->CurrentTex[TEXTURE_RECT_INDEX] : NULL;
773 case GL_PROXY_TEXTURE_RECTANGLE_NV:
774 return ctx->Extensions.NV_texture_rectangle
775 ? ctx->Texture.ProxyTex[TEXTURE_RECT_INDEX] : NULL;
776 case GL_TEXTURE_1D_ARRAY_EXT:
777 return arrayTex ? texUnit->CurrentTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
778 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
779 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_1D_ARRAY_INDEX] : NULL;
780 case GL_TEXTURE_2D_ARRAY_EXT:
781 return arrayTex ? texUnit->CurrentTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
782 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
783 return arrayTex ? ctx->Texture.ProxyTex[TEXTURE_2D_ARRAY_INDEX] : NULL;
784 case GL_TEXTURE_BUFFER:
785 return ctx->API == API_OPENGL_CORE &&
786 ctx->Extensions.ARB_texture_buffer_object ?
787 texUnit->CurrentTex[TEXTURE_BUFFER_INDEX] : NULL;
788 case GL_TEXTURE_EXTERNAL_OES:
789 return ctx->Extensions.OES_EGL_image_external
790 ? texUnit->CurrentTex[TEXTURE_EXTERNAL_INDEX] : NULL;
791 default:
792 _mesa_problem(NULL, "bad target in _mesa_select_tex_object()");
793 return NULL;
794 }
795 }
796
797
798 /**
799 * Return pointer to texture object for given target on current texture unit.
800 */
801 struct gl_texture_object *
802 _mesa_get_current_tex_object(struct gl_context *ctx, GLenum target)
803 {
804 struct gl_texture_unit *texUnit = _mesa_get_current_tex_unit(ctx);
805 return _mesa_select_tex_object(ctx, texUnit, target);
806 }
807
808
809 /**
810 * Get a texture image pointer from a texture object, given a texture
811 * target and mipmap level. The target and level parameters should
812 * have already been error-checked.
813 *
814 * \param ctx GL context.
815 * \param texObj texture unit.
816 * \param target texture target.
817 * \param level image level.
818 *
819 * \return pointer to the texture image structure, or NULL on failure.
820 */
821 struct gl_texture_image *
822 _mesa_select_tex_image(struct gl_context *ctx,
823 const struct gl_texture_object *texObj,
824 GLenum target, GLint level)
825 {
826 const GLuint face = _mesa_tex_target_to_face(target);
827
828 ASSERT(texObj);
829 ASSERT(level >= 0);
830 ASSERT(level < MAX_TEXTURE_LEVELS);
831
832 return texObj->Image[face][level];
833 }
834
835
836 /**
837 * Like _mesa_select_tex_image() but if the image doesn't exist, allocate
838 * it and install it. Only return NULL if passed a bad parameter or run
839 * out of memory.
840 */
841 struct gl_texture_image *
842 _mesa_get_tex_image(struct gl_context *ctx, struct gl_texture_object *texObj,
843 GLenum target, GLint level)
844 {
845 struct gl_texture_image *texImage;
846
847 if (!texObj)
848 return NULL;
849
850 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
851 if (!texImage) {
852 texImage = ctx->Driver.NewTextureImage(ctx);
853 if (!texImage) {
854 _mesa_error(ctx, GL_OUT_OF_MEMORY, "texture image allocation");
855 return NULL;
856 }
857
858 set_tex_image(texObj, target, level, texImage);
859 }
860
861 return texImage;
862 }
863
864
865 /**
866 * Return pointer to the specified proxy texture image.
867 * Note that proxy textures are per-context, not per-texture unit.
868 * \return pointer to texture image or NULL if invalid target, invalid
869 * level, or out of memory.
870 */
871 static struct gl_texture_image *
872 get_proxy_tex_image(struct gl_context *ctx, GLenum target, GLint level)
873 {
874 struct gl_texture_image *texImage;
875 GLuint texIndex;
876
877 if (level < 0)
878 return NULL;
879
880 switch (target) {
881 case GL_PROXY_TEXTURE_1D:
882 if (level >= ctx->Const.MaxTextureLevels)
883 return NULL;
884 texIndex = TEXTURE_1D_INDEX;
885 break;
886 case GL_PROXY_TEXTURE_2D:
887 if (level >= ctx->Const.MaxTextureLevels)
888 return NULL;
889 texIndex = TEXTURE_2D_INDEX;
890 break;
891 case GL_PROXY_TEXTURE_3D:
892 if (level >= ctx->Const.Max3DTextureLevels)
893 return NULL;
894 texIndex = TEXTURE_3D_INDEX;
895 break;
896 case GL_PROXY_TEXTURE_CUBE_MAP:
897 if (level >= ctx->Const.MaxCubeTextureLevels)
898 return NULL;
899 texIndex = TEXTURE_CUBE_INDEX;
900 break;
901 case GL_PROXY_TEXTURE_RECTANGLE_NV:
902 if (level > 0)
903 return NULL;
904 texIndex = TEXTURE_RECT_INDEX;
905 break;
906 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
907 if (level >= ctx->Const.MaxTextureLevels)
908 return NULL;
909 texIndex = TEXTURE_1D_ARRAY_INDEX;
910 break;
911 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
912 if (level >= ctx->Const.MaxTextureLevels)
913 return NULL;
914 texIndex = TEXTURE_2D_ARRAY_INDEX;
915 break;
916 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
917 if (level >= ctx->Const.MaxCubeTextureLevels)
918 return NULL;
919 texIndex = TEXTURE_CUBE_ARRAY_INDEX;
920 break;
921 default:
922 return NULL;
923 }
924
925 texImage = ctx->Texture.ProxyTex[texIndex]->Image[0][level];
926 if (!texImage) {
927 texImage = ctx->Driver.NewTextureImage(ctx);
928 if (!texImage) {
929 _mesa_error(ctx, GL_OUT_OF_MEMORY, "proxy texture allocation");
930 return NULL;
931 }
932 ctx->Texture.ProxyTex[texIndex]->Image[0][level] = texImage;
933 /* Set the 'back' pointer */
934 texImage->TexObject = ctx->Texture.ProxyTex[texIndex];
935 }
936 return texImage;
937 }
938
939
940 /**
941 * Get the maximum number of allowed mipmap levels.
942 *
943 * \param ctx GL context.
944 * \param target texture target.
945 *
946 * \return the maximum number of allowed mipmap levels for the given
947 * texture target, or zero if passed a bad target.
948 *
949 * \sa gl_constants.
950 */
951 GLint
952 _mesa_max_texture_levels(struct gl_context *ctx, GLenum target)
953 {
954 switch (target) {
955 case GL_TEXTURE_1D:
956 case GL_PROXY_TEXTURE_1D:
957 case GL_TEXTURE_2D:
958 case GL_PROXY_TEXTURE_2D:
959 return ctx->Const.MaxTextureLevels;
960 case GL_TEXTURE_3D:
961 case GL_PROXY_TEXTURE_3D:
962 return ctx->Const.Max3DTextureLevels;
963 case GL_TEXTURE_CUBE_MAP:
964 case GL_TEXTURE_CUBE_MAP_POSITIVE_X_ARB:
965 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X_ARB:
966 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y_ARB:
967 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_ARB:
968 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z_ARB:
969 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_ARB:
970 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
971 return ctx->Extensions.ARB_texture_cube_map
972 ? ctx->Const.MaxCubeTextureLevels : 0;
973 case GL_TEXTURE_RECTANGLE_NV:
974 case GL_PROXY_TEXTURE_RECTANGLE_NV:
975 return ctx->Extensions.NV_texture_rectangle ? 1 : 0;
976 case GL_TEXTURE_1D_ARRAY_EXT:
977 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
978 case GL_TEXTURE_2D_ARRAY_EXT:
979 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
980 return (ctx->Extensions.MESA_texture_array ||
981 ctx->Extensions.EXT_texture_array)
982 ? ctx->Const.MaxTextureLevels : 0;
983 case GL_TEXTURE_CUBE_MAP_ARRAY:
984 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
985 return ctx->Extensions.ARB_texture_cube_map_array
986 ? ctx->Const.MaxCubeTextureLevels : 0;
987 case GL_TEXTURE_BUFFER:
988 return ctx->API == API_OPENGL_CORE &&
989 ctx->Extensions.ARB_texture_buffer_object ? 1 : 0;
990 case GL_TEXTURE_EXTERNAL_OES:
991 /* fall-through */
992 default:
993 return 0; /* bad target */
994 }
995 }
996
997
998 /**
999 * Return number of dimensions per mipmap level for the given texture target.
1000 */
1001 GLint
1002 _mesa_get_texture_dimensions(GLenum target)
1003 {
1004 switch (target) {
1005 case GL_TEXTURE_1D:
1006 case GL_PROXY_TEXTURE_1D:
1007 return 1;
1008 case GL_TEXTURE_2D:
1009 case GL_TEXTURE_RECTANGLE:
1010 case GL_TEXTURE_CUBE_MAP:
1011 case GL_PROXY_TEXTURE_2D:
1012 case GL_PROXY_TEXTURE_RECTANGLE:
1013 case GL_PROXY_TEXTURE_CUBE_MAP:
1014 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1015 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1016 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1017 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1018 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1019 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1020 case GL_TEXTURE_1D_ARRAY:
1021 case GL_PROXY_TEXTURE_1D_ARRAY:
1022 case GL_TEXTURE_EXTERNAL_OES:
1023 return 2;
1024 case GL_TEXTURE_3D:
1025 case GL_PROXY_TEXTURE_3D:
1026 case GL_TEXTURE_2D_ARRAY:
1027 case GL_PROXY_TEXTURE_2D_ARRAY:
1028 case GL_TEXTURE_CUBE_MAP_ARRAY:
1029 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1030 return 3;
1031 case GL_TEXTURE_BUFFER:
1032 /* fall-through */
1033 default:
1034 _mesa_problem(NULL, "invalid target 0x%x in get_texture_dimensions()",
1035 target);
1036 return 2;
1037 }
1038 }
1039
1040
1041 /**
1042 * Return the maximum number of mipmap levels for the given target
1043 * and the dimensions.
1044 * The dimensions are expected not to include the border.
1045 */
1046 GLsizei
1047 _mesa_get_tex_max_num_levels(GLenum target, GLsizei width, GLsizei height,
1048 GLsizei depth)
1049 {
1050 GLsizei size;
1051
1052 switch (target) {
1053 case GL_TEXTURE_1D:
1054 case GL_TEXTURE_1D_ARRAY:
1055 size = width;
1056 break;
1057 case GL_TEXTURE_CUBE_MAP:
1058 case GL_TEXTURE_CUBE_MAP_ARRAY:
1059 ASSERT(width == height);
1060 size = width;
1061 break;
1062 case GL_TEXTURE_2D:
1063 case GL_TEXTURE_2D_ARRAY:
1064 size = MAX2(width, height);
1065 break;
1066 case GL_TEXTURE_3D:
1067 size = MAX3(width, height, depth);
1068 break;
1069 case GL_TEXTURE_RECTANGLE:
1070 case GL_TEXTURE_EXTERNAL_OES:
1071 return 1;
1072 default:
1073 assert(0);
1074 return 1;
1075 }
1076
1077 return _mesa_logbase2(size) + 1;
1078 }
1079
1080
1081 #if 000 /* not used anymore */
1082 /*
1083 * glTexImage[123]D can accept a NULL image pointer. In this case we
1084 * create a texture image with unspecified image contents per the OpenGL
1085 * spec.
1086 */
1087 static GLubyte *
1088 make_null_texture(GLint width, GLint height, GLint depth, GLenum format)
1089 {
1090 const GLint components = _mesa_components_in_format(format);
1091 const GLint numPixels = width * height * depth;
1092 GLubyte *data = (GLubyte *) malloc(numPixels * components * sizeof(GLubyte));
1093
1094 #ifdef DEBUG
1095 /*
1096 * Let's see if anyone finds this. If glTexImage2D() is called with
1097 * a NULL image pointer then load the texture image with something
1098 * interesting instead of leaving it indeterminate.
1099 */
1100 if (data) {
1101 static const char message[8][32] = {
1102 " X X XXXXX XXX X ",
1103 " XX XX X X X X X ",
1104 " X X X X X X X ",
1105 " X X XXXX XXX XXXXX ",
1106 " X X X X X X ",
1107 " X X X X X X X ",
1108 " X X XXXXX XXX X X ",
1109 " "
1110 };
1111
1112 GLubyte *imgPtr = data;
1113 GLint h, i, j, k;
1114 for (h = 0; h < depth; h++) {
1115 for (i = 0; i < height; i++) {
1116 GLint srcRow = 7 - (i % 8);
1117 for (j = 0; j < width; j++) {
1118 GLint srcCol = j % 32;
1119 GLubyte texel = (message[srcRow][srcCol]=='X') ? 255 : 70;
1120 for (k = 0; k < components; k++) {
1121 *imgPtr++ = texel;
1122 }
1123 }
1124 }
1125 }
1126 }
1127 #endif
1128
1129 return data;
1130 }
1131 #endif
1132
1133
1134
1135 /**
1136 * Set the size and format-related fields of a gl_texture_image struct
1137 * to zero. This is used when a proxy texture test fails.
1138 */
1139 static void
1140 clear_teximage_fields(struct gl_texture_image *img)
1141 {
1142 ASSERT(img);
1143 img->_BaseFormat = 0;
1144 img->InternalFormat = 0;
1145 img->Border = 0;
1146 img->Width = 0;
1147 img->Height = 0;
1148 img->Depth = 0;
1149 img->Width2 = 0;
1150 img->Height2 = 0;
1151 img->Depth2 = 0;
1152 img->WidthLog2 = 0;
1153 img->HeightLog2 = 0;
1154 img->DepthLog2 = 0;
1155 img->TexFormat = MESA_FORMAT_NONE;
1156 }
1157
1158
1159 /**
1160 * Initialize basic fields of the gl_texture_image struct.
1161 *
1162 * \param ctx GL context.
1163 * \param img texture image structure to be initialized.
1164 * \param width image width.
1165 * \param height image height.
1166 * \param depth image depth.
1167 * \param border image border.
1168 * \param internalFormat internal format.
1169 * \param format the actual hardware format (one of MESA_FORMAT_*)
1170 *
1171 * Fills in the fields of \p img with the given information.
1172 * Note: width, height and depth include the border.
1173 */
1174 void
1175 _mesa_init_teximage_fields(struct gl_context *ctx,
1176 struct gl_texture_image *img,
1177 GLsizei width, GLsizei height, GLsizei depth,
1178 GLint border, GLenum internalFormat,
1179 gl_format format)
1180 {
1181 GLenum target;
1182 ASSERT(img);
1183 ASSERT(width >= 0);
1184 ASSERT(height >= 0);
1185 ASSERT(depth >= 0);
1186
1187 target = img->TexObject->Target;
1188 img->_BaseFormat = _mesa_base_tex_format( ctx, internalFormat );
1189 ASSERT(img->_BaseFormat > 0);
1190 img->InternalFormat = internalFormat;
1191 img->Border = border;
1192 img->Width = width;
1193 img->Height = height;
1194 img->Depth = depth;
1195
1196 img->Width2 = width - 2 * border; /* == 1 << img->WidthLog2; */
1197 img->WidthLog2 = _mesa_logbase2(img->Width2);
1198
1199 switch(target) {
1200 case GL_TEXTURE_1D:
1201 case GL_TEXTURE_BUFFER:
1202 case GL_PROXY_TEXTURE_1D:
1203 if (height == 0)
1204 img->Height2 = 0;
1205 else
1206 img->Height2 = 1;
1207 img->HeightLog2 = 0;
1208 if (depth == 0)
1209 img->Depth2 = 0;
1210 else
1211 img->Depth2 = 1;
1212 img->DepthLog2 = 0;
1213 break;
1214 case GL_TEXTURE_1D_ARRAY:
1215 case GL_PROXY_TEXTURE_1D_ARRAY:
1216 img->Height2 = height; /* no border */
1217 img->HeightLog2 = 0; /* not used */
1218 if (depth == 0)
1219 img->Depth2 = 0;
1220 else
1221 img->Depth2 = 1;
1222 img->DepthLog2 = 0;
1223 break;
1224 case GL_TEXTURE_2D:
1225 case GL_TEXTURE_RECTANGLE:
1226 case GL_TEXTURE_CUBE_MAP:
1227 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1228 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1229 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1230 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1231 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1232 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1233 case GL_TEXTURE_EXTERNAL_OES:
1234 case GL_PROXY_TEXTURE_2D:
1235 case GL_PROXY_TEXTURE_RECTANGLE:
1236 case GL_PROXY_TEXTURE_CUBE_MAP:
1237 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1238 img->HeightLog2 = _mesa_logbase2(img->Height2);
1239 if (depth == 0)
1240 img->Depth2 = 0;
1241 else
1242 img->Depth2 = 1;
1243 img->DepthLog2 = 0;
1244 break;
1245 case GL_TEXTURE_2D_ARRAY:
1246 case GL_PROXY_TEXTURE_2D_ARRAY:
1247 case GL_TEXTURE_CUBE_MAP_ARRAY:
1248 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1249 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1250 img->HeightLog2 = _mesa_logbase2(img->Height2);
1251 img->Depth2 = depth; /* no border */
1252 img->DepthLog2 = 0; /* not used */
1253 break;
1254 case GL_TEXTURE_3D:
1255 case GL_PROXY_TEXTURE_3D:
1256 img->Height2 = height - 2 * border; /* == 1 << img->HeightLog2; */
1257 img->HeightLog2 = _mesa_logbase2(img->Height2);
1258 img->Depth2 = depth - 2 * border; /* == 1 << img->DepthLog2; */
1259 img->DepthLog2 = _mesa_logbase2(img->Depth2);
1260 break;
1261 default:
1262 _mesa_problem(NULL, "invalid target 0x%x in _mesa_init_teximage_fields()",
1263 target);
1264 }
1265
1266 img->MaxNumLevels =
1267 _mesa_get_tex_max_num_levels(target,
1268 img->Width2, img->Height2, img->Depth2);
1269 img->TexFormat = format;
1270 }
1271
1272
1273 /**
1274 * Free and clear fields of the gl_texture_image struct.
1275 *
1276 * \param ctx GL context.
1277 * \param texImage texture image structure to be cleared.
1278 *
1279 * After the call, \p texImage will have no data associated with it. Its
1280 * fields are cleared so that its parent object will test incomplete.
1281 */
1282 void
1283 _mesa_clear_texture_image(struct gl_context *ctx,
1284 struct gl_texture_image *texImage)
1285 {
1286 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
1287 clear_teximage_fields(texImage);
1288 }
1289
1290
1291 /**
1292 * Check the width, height, depth and border of a texture image are legal.
1293 * Used by all the glTexImage, glCompressedTexImage and glCopyTexImage
1294 * functions.
1295 * The target and level parameters will have already been validated.
1296 * \return GL_TRUE if size is OK, GL_FALSE otherwise.
1297 */
1298 GLboolean
1299 _mesa_legal_texture_dimensions(struct gl_context *ctx, GLenum target,
1300 GLint level, GLint width, GLint height,
1301 GLint depth, GLint border)
1302 {
1303 GLint maxSize;
1304
1305 switch (target) {
1306 case GL_TEXTURE_1D:
1307 case GL_PROXY_TEXTURE_1D:
1308 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1); /* level zero size */
1309 maxSize >>= level; /* level size */
1310 if (width < 2 * border || width > 2 * border + maxSize)
1311 return GL_FALSE;
1312 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1313 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1314 return GL_FALSE;
1315 }
1316 return GL_TRUE;
1317
1318 case GL_TEXTURE_2D:
1319 case GL_PROXY_TEXTURE_2D:
1320 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1321 maxSize >>= level;
1322 if (width < 2 * border || width > 2 * border + maxSize)
1323 return GL_FALSE;
1324 if (height < 2 * border || height > 2 * border + maxSize)
1325 return GL_FALSE;
1326 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1327 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1328 return GL_FALSE;
1329 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1330 return GL_FALSE;
1331 }
1332 return GL_TRUE;
1333
1334 case GL_TEXTURE_3D:
1335 case GL_PROXY_TEXTURE_3D:
1336 maxSize = 1 << (ctx->Const.Max3DTextureLevels - 1);
1337 maxSize >>= level;
1338 if (width < 2 * border || width > 2 * border + maxSize)
1339 return GL_FALSE;
1340 if (height < 2 * border || height > 2 * border + maxSize)
1341 return GL_FALSE;
1342 if (depth < 2 * border || depth > 2 * border + maxSize)
1343 return GL_FALSE;
1344 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1345 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1346 return GL_FALSE;
1347 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1348 return GL_FALSE;
1349 if (depth > 0 && !_mesa_is_pow_two(depth - 2 * border))
1350 return GL_FALSE;
1351 }
1352 return GL_TRUE;
1353
1354 case GL_TEXTURE_RECTANGLE_NV:
1355 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1356 if (level != 0)
1357 return GL_FALSE;
1358 maxSize = ctx->Const.MaxTextureRectSize;
1359 if (width < 0 || width > maxSize)
1360 return GL_FALSE;
1361 if (height < 0 || height > maxSize)
1362 return GL_FALSE;
1363 return GL_TRUE;
1364
1365 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1366 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1367 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1368 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1369 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1370 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1371 case GL_PROXY_TEXTURE_CUBE_MAP_ARB:
1372 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1373 maxSize >>= level;
1374 if (width < 2 * border || width > 2 * border + maxSize)
1375 return GL_FALSE;
1376 if (height < 2 * border || height > 2 * border + maxSize)
1377 return GL_FALSE;
1378 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1379 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1380 return GL_FALSE;
1381 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1382 return GL_FALSE;
1383 }
1384 return GL_TRUE;
1385
1386 case GL_TEXTURE_1D_ARRAY_EXT:
1387 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1388 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1389 maxSize >>= level;
1390 if (width < 2 * border || width > 2 * border + maxSize)
1391 return GL_FALSE;
1392 if (height < 1 || height > ctx->Const.MaxArrayTextureLayers)
1393 return GL_FALSE;
1394 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1395 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1396 return GL_FALSE;
1397 }
1398 return GL_TRUE;
1399
1400 case GL_TEXTURE_2D_ARRAY_EXT:
1401 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1402 maxSize = 1 << (ctx->Const.MaxTextureLevels - 1);
1403 maxSize >>= level;
1404 if (width < 2 * border || width > 2 * border + maxSize)
1405 return GL_FALSE;
1406 if (height < 2 * border || height > 2 * border + maxSize)
1407 return GL_FALSE;
1408 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1409 return GL_FALSE;
1410 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1411 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1412 return GL_FALSE;
1413 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1414 return GL_FALSE;
1415 }
1416 return GL_TRUE;
1417
1418 case GL_TEXTURE_CUBE_MAP_ARRAY:
1419 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1420 maxSize = 1 << (ctx->Const.MaxCubeTextureLevels - 1);
1421 if (width < 2 * border || width > 2 * border + maxSize)
1422 return GL_FALSE;
1423 if (height < 2 * border || height > 2 * border + maxSize)
1424 return GL_FALSE;
1425 if (depth < 1 || depth > ctx->Const.MaxArrayTextureLayers)
1426 return GL_FALSE;
1427 if (level >= ctx->Const.MaxCubeTextureLevels)
1428 return GL_FALSE;
1429 if (!ctx->Extensions.ARB_texture_non_power_of_two) {
1430 if (width > 0 && !_mesa_is_pow_two(width - 2 * border))
1431 return GL_FALSE;
1432 if (height > 0 && !_mesa_is_pow_two(height - 2 * border))
1433 return GL_FALSE;
1434 }
1435 return GL_TRUE;
1436 default:
1437 _mesa_problem(ctx, "Invalid target in _mesa_legal_texture_dimensions()");
1438 return GL_FALSE;
1439 }
1440 }
1441
1442
1443 /**
1444 * Do error checking of xoffset, yoffset, zoffset, width, height and depth
1445 * for glTexSubImage, glCopyTexSubImage and glCompressedTexSubImage.
1446 * \param destImage the destination texture image.
1447 * \return GL_TRUE if error found, GL_FALSE otherwise.
1448 */
1449 static GLboolean
1450 error_check_subtexture_dimensions(struct gl_context *ctx,
1451 const char *function, GLuint dims,
1452 const struct gl_texture_image *destImage,
1453 GLint xoffset, GLint yoffset, GLint zoffset,
1454 GLsizei subWidth, GLsizei subHeight,
1455 GLsizei subDepth)
1456 {
1457 const GLenum target = destImage->TexObject->Target;
1458 GLuint bw, bh;
1459
1460 /* Check size */
1461 if (subWidth < 0) {
1462 _mesa_error(ctx, GL_INVALID_VALUE,
1463 "%s%dD(width=%d)", function, dims, subWidth);
1464 return GL_TRUE;
1465 }
1466
1467 if (dims > 1 && subHeight < 0) {
1468 _mesa_error(ctx, GL_INVALID_VALUE,
1469 "%s%dD(height=%d)", function, dims, subHeight);
1470 return GL_TRUE;
1471 }
1472
1473 if (dims > 2 && subDepth < 0) {
1474 _mesa_error(ctx, GL_INVALID_VALUE,
1475 "%s%dD(depth=%d)", function, dims, subDepth);
1476 return GL_TRUE;
1477 }
1478
1479 /* check xoffset and width */
1480 if (xoffset < -destImage->Border) {
1481 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset)",
1482 function, dims);
1483 return GL_TRUE;
1484 }
1485
1486 if (xoffset + subWidth > destImage->Width) {
1487 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(xoffset+width)",
1488 function, dims);
1489 return GL_TRUE;
1490 }
1491
1492 /* check yoffset and height */
1493 if (dims > 1) {
1494 GLint yBorder = (target == GL_TEXTURE_1D_ARRAY) ? 0 : destImage->Border;
1495 if (yoffset < -yBorder) {
1496 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset)",
1497 function, dims);
1498 return GL_TRUE;
1499 }
1500 if (yoffset + subHeight > destImage->Height) {
1501 _mesa_error(ctx, GL_INVALID_VALUE, "%s%dD(yoffset+height)",
1502 function, dims);
1503 return GL_TRUE;
1504 }
1505 }
1506
1507 /* check zoffset and depth */
1508 if (dims > 2) {
1509 GLint zBorder = (target == GL_TEXTURE_2D_ARRAY) ? 0 : destImage->Border;
1510 if (zoffset < -zBorder) {
1511 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset)", function);
1512 return GL_TRUE;
1513 }
1514 if (zoffset + subDepth > (GLint) destImage->Depth) {
1515 _mesa_error(ctx, GL_INVALID_VALUE, "%s3D(zoffset+depth)", function);
1516 return GL_TRUE;
1517 }
1518 }
1519
1520 /*
1521 * The OpenGL spec (and GL_ARB_texture_compression) says only whole
1522 * compressed texture images can be updated. But, that restriction may be
1523 * relaxed for particular compressed formats. At this time, all the
1524 * compressed formats supported by Mesa allow sub-textures to be updated
1525 * along compressed block boundaries.
1526 */
1527 _mesa_get_format_block_size(destImage->TexFormat, &bw, &bh);
1528
1529 if (bw != 1 || bh != 1) {
1530 /* offset must be multiple of block size */
1531 if ((xoffset % bw != 0) || (yoffset % bh != 0)) {
1532 _mesa_error(ctx, GL_INVALID_OPERATION,
1533 "%s%dD(xoffset = %d, yoffset = %d)",
1534 function, dims, xoffset, yoffset);
1535 return GL_TRUE;
1536 }
1537
1538 /* size must be multiple of bw by bh or equal to whole texture size */
1539 if ((subWidth % bw != 0) && subWidth != destImage->Width) {
1540 _mesa_error(ctx, GL_INVALID_OPERATION,
1541 "%s%dD(width = %d)", function, dims, subWidth);
1542 return GL_TRUE;
1543 }
1544
1545 if ((subHeight % bh != 0) && subHeight != destImage->Height) {
1546 _mesa_error(ctx, GL_INVALID_OPERATION,
1547 "%s%dD(height = %d)", function, dims, subHeight);
1548 return GL_TRUE;
1549 }
1550 }
1551
1552 return GL_FALSE;
1553 }
1554
1555
1556
1557
1558 /**
1559 * This is the fallback for Driver.TestProxyTexImage() for doing device-
1560 * specific texture image size checks.
1561 *
1562 * A hardware driver might override this function if, for example, the
1563 * max 3D texture size is 512x512x64 (i.e. not a cube).
1564 *
1565 * Note that width, height, depth == 0 is not an error. However, a
1566 * texture with zero width/height/depth will be considered "incomplete"
1567 * and texturing will effectively be disabled.
1568 *
1569 * \param target any texture target/type
1570 * \param level as passed to glTexImage
1571 * \param format the MESA_FORMAT_x for the tex image
1572 * \param width as passed to glTexImage
1573 * \param height as passed to glTexImage
1574 * \param depth as passed to glTexImage
1575 * \param border as passed to glTexImage
1576 * \return GL_TRUE if the image is acceptable, GL_FALSE if not acceptable.
1577 */
1578 GLboolean
1579 _mesa_test_proxy_teximage(struct gl_context *ctx, GLenum target, GLint level,
1580 gl_format format,
1581 GLint width, GLint height, GLint depth, GLint border)
1582 {
1583 /* We just check if the image size is less than MaxTextureMbytes.
1584 * Some drivers may do more specific checks.
1585 */
1586 uint64_t bytes = _mesa_format_image_size64(format, width, height, depth);
1587 uint64_t mbytes = bytes / (1024 * 1024); /* convert to MB */
1588 mbytes *= _mesa_num_tex_faces(target);
1589 return mbytes <= (uint64_t) ctx->Const.MaxTextureMbytes;
1590 }
1591
1592
1593 /**
1594 * Return true if the format is only valid for glCompressedTexImage.
1595 */
1596 static GLboolean
1597 compressedteximage_only_format(const struct gl_context *ctx, GLenum format)
1598 {
1599 switch (format) {
1600 case GL_ETC1_RGB8_OES:
1601 case GL_PALETTE4_RGB8_OES:
1602 case GL_PALETTE4_RGBA8_OES:
1603 case GL_PALETTE4_R5_G6_B5_OES:
1604 case GL_PALETTE4_RGBA4_OES:
1605 case GL_PALETTE4_RGB5_A1_OES:
1606 case GL_PALETTE8_RGB8_OES:
1607 case GL_PALETTE8_RGBA8_OES:
1608 case GL_PALETTE8_R5_G6_B5_OES:
1609 case GL_PALETTE8_RGBA4_OES:
1610 case GL_PALETTE8_RGB5_A1_OES:
1611 return GL_TRUE;
1612 default:
1613 return GL_FALSE;
1614 }
1615 }
1616
1617
1618 /**
1619 * Helper function to determine whether a target and specific compression
1620 * format are supported.
1621 */
1622 static GLboolean
1623 target_can_be_compressed(const struct gl_context *ctx, GLenum target,
1624 GLenum intFormat)
1625 {
1626 (void) intFormat; /* not used yet */
1627
1628 switch (target) {
1629 case GL_TEXTURE_2D:
1630 case GL_PROXY_TEXTURE_2D:
1631 return GL_TRUE; /* true for any compressed format so far */
1632 case GL_PROXY_TEXTURE_CUBE_MAP:
1633 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1634 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1635 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1636 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1637 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1638 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1639 return ctx->Extensions.ARB_texture_cube_map;
1640 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1641 case GL_TEXTURE_2D_ARRAY_EXT:
1642 return (ctx->Extensions.MESA_texture_array ||
1643 ctx->Extensions.EXT_texture_array);
1644 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1645 case GL_TEXTURE_CUBE_MAP_ARRAY:
1646 return ctx->Extensions.ARB_texture_cube_map_array;
1647 default:
1648 return GL_FALSE;
1649 }
1650 }
1651
1652
1653 /**
1654 * Check if the given texture target value is legal for a
1655 * glTexImage1/2/3D call.
1656 */
1657 static GLboolean
1658 legal_teximage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1659 {
1660 switch (dims) {
1661 case 1:
1662 switch (target) {
1663 case GL_TEXTURE_1D:
1664 case GL_PROXY_TEXTURE_1D:
1665 return _mesa_is_desktop_gl(ctx);
1666 default:
1667 return GL_FALSE;
1668 }
1669 case 2:
1670 switch (target) {
1671 case GL_TEXTURE_2D:
1672 return GL_TRUE;
1673 case GL_PROXY_TEXTURE_2D:
1674 return _mesa_is_desktop_gl(ctx);
1675 case GL_PROXY_TEXTURE_CUBE_MAP:
1676 return _mesa_is_desktop_gl(ctx)
1677 && ctx->Extensions.ARB_texture_cube_map;
1678 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1679 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1680 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1681 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1682 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1683 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1684 return ctx->Extensions.ARB_texture_cube_map;
1685 case GL_TEXTURE_RECTANGLE_NV:
1686 case GL_PROXY_TEXTURE_RECTANGLE_NV:
1687 return _mesa_is_desktop_gl(ctx)
1688 && ctx->Extensions.NV_texture_rectangle;
1689 case GL_TEXTURE_1D_ARRAY_EXT:
1690 case GL_PROXY_TEXTURE_1D_ARRAY_EXT:
1691 return _mesa_is_desktop_gl(ctx)
1692 && (ctx->Extensions.MESA_texture_array ||
1693 ctx->Extensions.EXT_texture_array);
1694 default:
1695 return GL_FALSE;
1696 }
1697 case 3:
1698 switch (target) {
1699 case GL_TEXTURE_3D:
1700 return GL_TRUE;
1701 case GL_PROXY_TEXTURE_3D:
1702 return _mesa_is_desktop_gl(ctx);
1703 case GL_TEXTURE_2D_ARRAY_EXT:
1704 return (_mesa_is_desktop_gl(ctx)
1705 && (ctx->Extensions.MESA_texture_array ||
1706 ctx->Extensions.EXT_texture_array))
1707 || _mesa_is_gles3(ctx);
1708 case GL_PROXY_TEXTURE_2D_ARRAY_EXT:
1709 return _mesa_is_desktop_gl(ctx)
1710 && (ctx->Extensions.MESA_texture_array ||
1711 ctx->Extensions.EXT_texture_array);
1712 case GL_TEXTURE_CUBE_MAP_ARRAY:
1713 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1714 return ctx->Extensions.ARB_texture_cube_map_array;
1715 default:
1716 return GL_FALSE;
1717 }
1718 default:
1719 _mesa_problem(ctx, "invalid dims=%u in legal_teximage_target()", dims);
1720 return GL_FALSE;
1721 }
1722 }
1723
1724
1725 /**
1726 * Check if the given texture target value is legal for a
1727 * glTexSubImage, glCopyTexSubImage or glCopyTexImage call.
1728 * The difference compared to legal_teximage_target() above is that
1729 * proxy targets are not supported.
1730 */
1731 static GLboolean
1732 legal_texsubimage_target(struct gl_context *ctx, GLuint dims, GLenum target)
1733 {
1734 switch (dims) {
1735 case 1:
1736 return _mesa_is_desktop_gl(ctx) && target == GL_TEXTURE_1D;
1737 case 2:
1738 switch (target) {
1739 case GL_TEXTURE_2D:
1740 return GL_TRUE;
1741 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
1742 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
1743 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
1744 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
1745 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
1746 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
1747 return ctx->Extensions.ARB_texture_cube_map;
1748 case GL_TEXTURE_RECTANGLE_NV:
1749 return _mesa_is_desktop_gl(ctx)
1750 && ctx->Extensions.NV_texture_rectangle;
1751 case GL_TEXTURE_1D_ARRAY_EXT:
1752 return _mesa_is_desktop_gl(ctx)
1753 && (ctx->Extensions.MESA_texture_array ||
1754 ctx->Extensions.EXT_texture_array);
1755 default:
1756 return GL_FALSE;
1757 }
1758 case 3:
1759 switch (target) {
1760 case GL_TEXTURE_3D:
1761 return GL_TRUE;
1762 case GL_TEXTURE_2D_ARRAY_EXT:
1763 return (_mesa_is_desktop_gl(ctx)
1764 && (ctx->Extensions.MESA_texture_array ||
1765 ctx->Extensions.EXT_texture_array))
1766 || _mesa_is_gles3(ctx);
1767 case GL_TEXTURE_CUBE_MAP_ARRAY:
1768 case GL_PROXY_TEXTURE_CUBE_MAP_ARRAY:
1769 return ctx->Extensions.ARB_texture_cube_map_array;
1770 default:
1771 return GL_FALSE;
1772 }
1773 default:
1774 _mesa_problem(ctx, "invalid dims=%u in legal_texsubimage_target()",
1775 dims);
1776 return GL_FALSE;
1777 }
1778 }
1779
1780
1781 /**
1782 * Helper function to determine if a texture object is mutable (in terms
1783 * of GL_ARB_texture_storage).
1784 */
1785 static GLboolean
1786 mutable_tex_object(struct gl_context *ctx, GLenum target)
1787 {
1788 if (ctx->Extensions.ARB_texture_storage) {
1789 struct gl_texture_object *texObj =
1790 _mesa_get_current_tex_object(ctx, target);
1791 return !texObj->Immutable;
1792 }
1793 return GL_TRUE;
1794 }
1795
1796
1797 /**
1798 * Return expected size of a compressed texture.
1799 */
1800 static GLuint
1801 compressed_tex_size(GLsizei width, GLsizei height, GLsizei depth,
1802 GLenum glformat)
1803 {
1804 gl_format mesaFormat = _mesa_glenum_to_compressed_format(glformat);
1805 return _mesa_format_image_size(mesaFormat, width, height, depth);
1806 }
1807
1808
1809 /**
1810 * Test the glTexImage[123]D() parameters for errors.
1811 *
1812 * \param ctx GL context.
1813 * \param dimensions texture image dimensions (must be 1, 2 or 3).
1814 * \param target texture target given by the user (already validated).
1815 * \param level image level given by the user.
1816 * \param internalFormat internal format given by the user.
1817 * \param format pixel data format given by the user.
1818 * \param type pixel data type given by the user.
1819 * \param width image width given by the user.
1820 * \param height image height given by the user.
1821 * \param depth image depth given by the user.
1822 * \param border image border given by the user.
1823 *
1824 * \return GL_TRUE if a error is found, GL_FALSE otherwise
1825 *
1826 * Verifies each of the parameters against the constants specified in
1827 * __struct gl_contextRec::Const and the supported extensions, and according
1828 * to the OpenGL specification.
1829 * Note that we don't fully error-check the width, height, depth values
1830 * here. That's done in _mesa_legal_texture_dimensions() which is used
1831 * by several other GL entrypoints. Plus, texture dims have a special
1832 * interaction with proxy textures.
1833 */
1834 static GLboolean
1835 texture_error_check( struct gl_context *ctx,
1836 GLuint dimensions, GLenum target,
1837 GLint level, GLint internalFormat,
1838 GLenum format, GLenum type,
1839 GLint width, GLint height,
1840 GLint depth, GLint border )
1841 {
1842 GLboolean colorFormat;
1843 GLenum err;
1844
1845 /* Even though there are no color-index textures, we still have to support
1846 * uploading color-index data and remapping it to RGB via the
1847 * GL_PIXEL_MAP_I_TO_[RGBA] tables.
1848 */
1849 const GLboolean indexFormat = (format == GL_COLOR_INDEX);
1850
1851 /* Note: for proxy textures, some error conditions immediately generate
1852 * a GL error in the usual way. But others do not generate a GL error.
1853 * Instead, they cause the width, height, depth, format fields of the
1854 * texture image to be zeroed-out. The GL spec seems to indicate that the
1855 * zero-out behaviour is only used in cases related to memory allocation.
1856 */
1857
1858 /* level check */
1859 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
1860 _mesa_error(ctx, GL_INVALID_VALUE,
1861 "glTexImage%dD(level=%d)", dimensions, level);
1862 return GL_TRUE;
1863 }
1864
1865 /* Check border */
1866 if (border < 0 || border > 1 ||
1867 ((ctx->API != API_OPENGL_COMPAT ||
1868 target == GL_TEXTURE_RECTANGLE_NV ||
1869 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
1870 _mesa_error(ctx, GL_INVALID_VALUE,
1871 "glTexImage%dD(border=%d)", dimensions, border);
1872 return GL_TRUE;
1873 }
1874
1875 if (width < 0 || height < 0 || depth < 0) {
1876 _mesa_error(ctx, GL_INVALID_VALUE,
1877 "glTexImage%dD(width, height or depth < 0)", dimensions);
1878 return GL_TRUE;
1879 }
1880
1881 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
1882 * combinations of format, internalFormat, and type that can be used.
1883 * Formats and types that require additional extensions (e.g., GL_FLOAT
1884 * requires GL_OES_texture_float) are filtered elsewhere.
1885 */
1886
1887 if (_mesa_is_gles(ctx)) {
1888 if (_mesa_is_gles3(ctx)) {
1889 err = _mesa_es3_error_check_format_and_type(format, type,
1890 internalFormat);
1891 } else {
1892 if (format != internalFormat) {
1893 _mesa_error(ctx, GL_INVALID_OPERATION,
1894 "glTexImage%dD(format = %s, internalFormat = %s)",
1895 dimensions,
1896 _mesa_lookup_enum_by_nr(format),
1897 _mesa_lookup_enum_by_nr(internalFormat));
1898 return GL_TRUE;
1899 }
1900
1901 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
1902 }
1903 if (err != GL_NO_ERROR) {
1904 _mesa_error(ctx, err,
1905 "glTexImage%dD(format = %s, type = %s, internalFormat = %s)",
1906 dimensions,
1907 _mesa_lookup_enum_by_nr(format),
1908 _mesa_lookup_enum_by_nr(type),
1909 _mesa_lookup_enum_by_nr(internalFormat));
1910 return GL_TRUE;
1911 }
1912 }
1913
1914 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
1915 _mesa_is_cube_face(target)) && width != height) {
1916 _mesa_error(ctx, GL_INVALID_VALUE,
1917 "glTexImage2D(cube width != height)");
1918 return GL_TRUE;
1919 }
1920
1921 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1922 target == GL_TEXTURE_CUBE_MAP_ARRAY) && width != height) {
1923 _mesa_error(ctx, GL_INVALID_VALUE,
1924 "glTexImage3D(cube array width != height)");
1925 return GL_TRUE;
1926 }
1927
1928 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY ||
1929 target == GL_TEXTURE_CUBE_MAP_ARRAY) && (depth % 6)) {
1930 _mesa_error(ctx, GL_INVALID_VALUE,
1931 "glTexImage3D(cube array depth not multiple of 6)");
1932 return GL_TRUE;
1933 }
1934
1935 /* Check internalFormat */
1936 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
1937 _mesa_error(ctx, GL_INVALID_VALUE,
1938 "glTexImage%dD(internalFormat=%s)",
1939 dimensions, _mesa_lookup_enum_by_nr(internalFormat));
1940 return GL_TRUE;
1941 }
1942
1943 /* Check incoming image format and type */
1944 err = _mesa_error_check_format_and_type(ctx, format, type);
1945 if (err != GL_NO_ERROR) {
1946 _mesa_error(ctx, err,
1947 "glTexImage%dD(incompatible format = %s, type = %s)",
1948 dimensions, _mesa_lookup_enum_by_nr(format),
1949 _mesa_lookup_enum_by_nr(type));
1950 return GL_TRUE;
1951 }
1952
1953 /* make sure internal format and format basically agree */
1954 colorFormat = _mesa_is_color_format(format);
1955 if ((_mesa_is_color_format(internalFormat) && !colorFormat && !indexFormat) ||
1956 (_mesa_is_depth_format(internalFormat) != _mesa_is_depth_format(format)) ||
1957 (_mesa_is_ycbcr_format(internalFormat) != _mesa_is_ycbcr_format(format)) ||
1958 (_mesa_is_depthstencil_format(internalFormat) != _mesa_is_depthstencil_format(format)) ||
1959 (_mesa_is_dudv_format(internalFormat) != _mesa_is_dudv_format(format))) {
1960 _mesa_error(ctx, GL_INVALID_OPERATION,
1961 "glTexImage%dD(incompatible internalFormat = %s, format = %s)",
1962 dimensions, _mesa_lookup_enum_by_nr(internalFormat),
1963 _mesa_lookup_enum_by_nr(format));
1964 return GL_TRUE;
1965 }
1966
1967 /* additional checks for ycbcr textures */
1968 if (internalFormat == GL_YCBCR_MESA) {
1969 ASSERT(ctx->Extensions.MESA_ycbcr_texture);
1970 if (type != GL_UNSIGNED_SHORT_8_8_MESA &&
1971 type != GL_UNSIGNED_SHORT_8_8_REV_MESA) {
1972 char message[100];
1973 _mesa_snprintf(message, sizeof(message),
1974 "glTexImage%dD(format/type YCBCR mismatch)",
1975 dimensions);
1976 _mesa_error(ctx, GL_INVALID_ENUM, "%s", message);
1977 return GL_TRUE; /* error */
1978 }
1979 if (target != GL_TEXTURE_2D &&
1980 target != GL_PROXY_TEXTURE_2D &&
1981 target != GL_TEXTURE_RECTANGLE_NV &&
1982 target != GL_PROXY_TEXTURE_RECTANGLE_NV) {
1983 _mesa_error(ctx, GL_INVALID_ENUM,
1984 "glTexImage%dD(bad target for YCbCr texture)",
1985 dimensions);
1986 return GL_TRUE;
1987 }
1988 if (border != 0) {
1989 char message[100];
1990 _mesa_snprintf(message, sizeof(message),
1991 "glTexImage%dD(format=GL_YCBCR_MESA and border=%d)",
1992 dimensions, border);
1993 _mesa_error(ctx, GL_INVALID_VALUE, "%s", message);
1994 return GL_TRUE;
1995 }
1996 }
1997
1998 /* additional checks for depth textures */
1999 if (_mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_COMPONENT
2000 || _mesa_base_tex_format(ctx, internalFormat) == GL_DEPTH_STENCIL) {
2001 /* Only 1D, 2D, rect, array and cube textures supported, not 3D
2002 * Cubemaps are only supported for GL version > 3.0 or with EXT_gpu_shader4 */
2003 if (target != GL_TEXTURE_1D &&
2004 target != GL_PROXY_TEXTURE_1D &&
2005 target != GL_TEXTURE_2D &&
2006 target != GL_PROXY_TEXTURE_2D &&
2007 target != GL_TEXTURE_1D_ARRAY &&
2008 target != GL_PROXY_TEXTURE_1D_ARRAY &&
2009 target != GL_TEXTURE_2D_ARRAY &&
2010 target != GL_PROXY_TEXTURE_2D_ARRAY &&
2011 target != GL_TEXTURE_RECTANGLE_ARB &&
2012 target != GL_PROXY_TEXTURE_RECTANGLE_ARB &&
2013 !((_mesa_is_cube_face(target) || target == GL_PROXY_TEXTURE_CUBE_MAP) &&
2014 (ctx->Version >= 30 || ctx->Extensions.EXT_gpu_shader4
2015 || (ctx->API == API_OPENGLES2 && ctx->Extensions.OES_depth_texture_cube_map))) &&
2016 !((target == GL_TEXTURE_CUBE_MAP_ARRAY ||
2017 target == GL_PROXY_TEXTURE_CUBE_MAP_ARRAY) &&
2018 ctx->Extensions.ARB_texture_cube_map_array)) {
2019 _mesa_error(ctx, GL_INVALID_ENUM,
2020 "glTexImage%dD(bad target for depth texture)",
2021 dimensions);
2022 return GL_TRUE;
2023 }
2024 }
2025
2026 /* additional checks for compressed textures */
2027 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2028 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2029 _mesa_error(ctx, GL_INVALID_ENUM,
2030 "glTexImage%dD(target can't be compressed)", dimensions);
2031 return GL_TRUE;
2032 }
2033 if (compressedteximage_only_format(ctx, internalFormat)) {
2034 _mesa_error(ctx, GL_INVALID_OPERATION,
2035 "glTexImage%dD(no compression for format)", dimensions);
2036 return GL_TRUE;
2037 }
2038 if (border != 0) {
2039 _mesa_error(ctx, GL_INVALID_OPERATION,
2040 "glTexImage%dD(border!=0)", dimensions);
2041 return GL_TRUE;
2042 }
2043 }
2044
2045 /* additional checks for integer textures */
2046 if ((ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) &&
2047 (_mesa_is_enum_format_integer(format) !=
2048 _mesa_is_enum_format_integer(internalFormat))) {
2049 _mesa_error(ctx, GL_INVALID_OPERATION,
2050 "glTexImage%dD(integer/non-integer format mismatch)",
2051 dimensions);
2052 return GL_TRUE;
2053 }
2054
2055 if (!mutable_tex_object(ctx, target)) {
2056 _mesa_error(ctx, GL_INVALID_OPERATION,
2057 "glTexImage%dD(immutable texture)", dimensions);
2058 return GL_TRUE;
2059 }
2060
2061 /* if we get here, the parameters are OK */
2062 return GL_FALSE;
2063 }
2064
2065
2066 /**
2067 * Error checking for glCompressedTexImage[123]D().
2068 * Note that the width, height and depth values are not fully error checked
2069 * here.
2070 * \return GL_TRUE if a error is found, GL_FALSE otherwise
2071 */
2072 static GLenum
2073 compressed_texture_error_check(struct gl_context *ctx, GLint dimensions,
2074 GLenum target, GLint level,
2075 GLenum internalFormat, GLsizei width,
2076 GLsizei height, GLsizei depth, GLint border,
2077 GLsizei imageSize)
2078 {
2079 const GLint maxLevels = _mesa_max_texture_levels(ctx, target);
2080 GLint expectedSize;
2081 GLenum error = GL_NO_ERROR;
2082 char *reason = ""; /* no error */
2083
2084 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2085 reason = "target";
2086 error = GL_INVALID_ENUM;
2087 goto error;
2088 }
2089
2090 /* This will detect any invalid internalFormat value */
2091 if (!_mesa_is_compressed_format(ctx, internalFormat)) {
2092 reason = "internalFormat";
2093 error = GL_INVALID_ENUM;
2094 goto error;
2095 }
2096
2097 switch (internalFormat) {
2098 case GL_PALETTE4_RGB8_OES:
2099 case GL_PALETTE4_RGBA8_OES:
2100 case GL_PALETTE4_R5_G6_B5_OES:
2101 case GL_PALETTE4_RGBA4_OES:
2102 case GL_PALETTE4_RGB5_A1_OES:
2103 case GL_PALETTE8_RGB8_OES:
2104 case GL_PALETTE8_RGBA8_OES:
2105 case GL_PALETTE8_R5_G6_B5_OES:
2106 case GL_PALETTE8_RGBA4_OES:
2107 case GL_PALETTE8_RGB5_A1_OES:
2108 /* check level (note that level should be zero or less!) */
2109 if (level > 0 || level < -maxLevels) {
2110 reason = "level";
2111 error = GL_INVALID_VALUE;
2112 goto error;
2113 }
2114
2115 if (dimensions != 2) {
2116 reason = "compressed paletted textures must be 2D";
2117 error = GL_INVALID_OPERATION;
2118 goto error;
2119 }
2120
2121 /* Figure out the expected texture size (in bytes). This will be
2122 * checked against the actual size later.
2123 */
2124 expectedSize = _mesa_cpal_compressed_size(level, internalFormat,
2125 width, height);
2126
2127 /* This is for the benefit of the TestProxyTexImage below. It expects
2128 * level to be non-negative. OES_compressed_paletted_texture uses a
2129 * weird mechanism where the level specified to glCompressedTexImage2D
2130 * is -(n-1) number of levels in the texture, and the data specifies the
2131 * complete mipmap stack. This is done to ensure the palette is the
2132 * same for all levels.
2133 */
2134 level = -level;
2135 break;
2136
2137 default:
2138 /* check level */
2139 if (level < 0 || level >= maxLevels) {
2140 reason = "level";
2141 error = GL_INVALID_VALUE;
2142 goto error;
2143 }
2144
2145 /* Figure out the expected texture size (in bytes). This will be
2146 * checked against the actual size later.
2147 */
2148 expectedSize = compressed_tex_size(width, height, depth, internalFormat);
2149 break;
2150 }
2151
2152 /* This should really never fail */
2153 if (_mesa_base_tex_format(ctx, internalFormat) < 0) {
2154 reason = "internalFormat";
2155 error = GL_INVALID_ENUM;
2156 goto error;
2157 }
2158
2159 /* No compressed formats support borders at this time */
2160 if (border != 0) {
2161 reason = "border != 0";
2162 error = GL_INVALID_VALUE;
2163 goto error;
2164 }
2165
2166 /* For cube map, width must equal height */
2167 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2168 _mesa_is_cube_face(target)) && width != height) {
2169 reason = "width != height";
2170 error = GL_INVALID_VALUE;
2171 goto error;
2172 }
2173
2174 /* check image size in bytes */
2175 if (expectedSize != imageSize) {
2176 /* Per GL_ARB_texture_compression: GL_INVALID_VALUE is generated [...]
2177 * if <imageSize> is not consistent with the format, dimensions, and
2178 * contents of the specified image.
2179 */
2180 reason = "imageSize inconsistant with width/height/format";
2181 error = GL_INVALID_VALUE;
2182 goto error;
2183 }
2184
2185 if (!mutable_tex_object(ctx, target)) {
2186 reason = "immutable texture";
2187 error = GL_INVALID_OPERATION;
2188 goto error;
2189 }
2190
2191 return GL_FALSE;
2192
2193 error:
2194 _mesa_error(ctx, error, "glCompressedTexImage%dD(%s)", dimensions, reason);
2195 return GL_TRUE;
2196 }
2197
2198
2199
2200 /**
2201 * Test glTexSubImage[123]D() parameters for errors.
2202 *
2203 * \param ctx GL context.
2204 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2205 * \param target texture target given by the user (already validated)
2206 * \param level image level given by the user.
2207 * \param xoffset sub-image x offset given by the user.
2208 * \param yoffset sub-image y offset given by the user.
2209 * \param zoffset sub-image z offset given by the user.
2210 * \param format pixel data format given by the user.
2211 * \param type pixel data type given by the user.
2212 * \param width image width given by the user.
2213 * \param height image height given by the user.
2214 * \param depth image depth given by the user.
2215 *
2216 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2217 *
2218 * Verifies each of the parameters against the constants specified in
2219 * __struct gl_contextRec::Const and the supported extensions, and according
2220 * to the OpenGL specification.
2221 */
2222 static GLboolean
2223 texsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2224 GLenum target, GLint level,
2225 GLint xoffset, GLint yoffset, GLint zoffset,
2226 GLint width, GLint height, GLint depth,
2227 GLenum format, GLenum type)
2228 {
2229 struct gl_texture_object *texObj;
2230 struct gl_texture_image *texImage;
2231 GLenum err;
2232
2233 /* check target (proxies not allowed) */
2234 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2235 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
2236 dimensions, _mesa_lookup_enum_by_nr(target));
2237 return GL_TRUE;
2238 }
2239
2240 /* level check */
2241 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2242 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(level=%d)",
2243 dimensions, level);
2244 return GL_TRUE;
2245 }
2246
2247 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2248 * combinations of format and type that can be used. Formats and types
2249 * that require additional extensions (e.g., GL_FLOAT requires
2250 * GL_OES_texture_float) are filtered elsewhere.
2251 */
2252 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2253 err = _mesa_es_error_check_format_and_type(format, type, dimensions);
2254 if (err != GL_NO_ERROR) {
2255 _mesa_error(ctx, err,
2256 "glTexSubImage%dD(format = %s, type = %s)",
2257 dimensions,
2258 _mesa_lookup_enum_by_nr(format),
2259 _mesa_lookup_enum_by_nr(type));
2260 return GL_TRUE;
2261 }
2262 }
2263
2264 err = _mesa_error_check_format_and_type(ctx, format, type);
2265 if (err != GL_NO_ERROR) {
2266 _mesa_error(ctx, err,
2267 "glTexSubImage%dD(incompatible format = %s, type = %s)",
2268 dimensions, _mesa_lookup_enum_by_nr(format),
2269 _mesa_lookup_enum_by_nr(type));
2270 return GL_TRUE;
2271 }
2272
2273 /* Get dest texture object / image pointers */
2274 texObj = _mesa_get_current_tex_object(ctx, target);
2275 if (!texObj) {
2276 /* must be out of memory */
2277 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glTexSubImage%dD()", dimensions);
2278 return GL_TRUE;
2279 }
2280
2281 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2282 if (!texImage) {
2283 /* non-existant texture level */
2284 _mesa_error(ctx, GL_INVALID_OPERATION,
2285 "glTexSubImage%dD(invalid texture image)", dimensions);
2286 return GL_TRUE;
2287 }
2288
2289 if (error_check_subtexture_dimensions(ctx, "glTexSubImage", dimensions,
2290 texImage, xoffset, yoffset, 0,
2291 width, height, 1)) {
2292 return GL_TRUE;
2293 }
2294
2295 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2296 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2297 _mesa_error(ctx, GL_INVALID_OPERATION,
2298 "glTexSubImage%dD(no compression for format)", dimensions);
2299 return GL_TRUE;
2300 }
2301 }
2302
2303 if (ctx->Version >= 30 || ctx->Extensions.EXT_texture_integer) {
2304 /* both source and dest must be integer-valued, or neither */
2305 if (_mesa_is_format_integer_color(texImage->TexFormat) !=
2306 _mesa_is_enum_format_integer(format)) {
2307 _mesa_error(ctx, GL_INVALID_OPERATION,
2308 "glTexSubImage%dD(integer/non-integer format mismatch)",
2309 dimensions);
2310 return GL_TRUE;
2311 }
2312 }
2313
2314 return GL_FALSE;
2315 }
2316
2317
2318 /**
2319 * Test glCopyTexImage[12]D() parameters for errors.
2320 *
2321 * \param ctx GL context.
2322 * \param dimensions texture image dimensions (must be 1, 2 or 3).
2323 * \param target texture target given by the user.
2324 * \param level image level given by the user.
2325 * \param internalFormat internal format given by the user.
2326 * \param width image width given by the user.
2327 * \param height image height given by the user.
2328 * \param border texture border.
2329 *
2330 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2331 *
2332 * Verifies each of the parameters against the constants specified in
2333 * __struct gl_contextRec::Const and the supported extensions, and according
2334 * to the OpenGL specification.
2335 */
2336 static GLboolean
2337 copytexture_error_check( struct gl_context *ctx, GLuint dimensions,
2338 GLenum target, GLint level, GLint internalFormat,
2339 GLint width, GLint height, GLint border )
2340 {
2341 GLint baseFormat;
2342 GLint rb_base_format;
2343 struct gl_renderbuffer *rb;
2344 GLenum rb_internal_format;
2345
2346 /* check target */
2347 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2348 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexImage%uD(target=%s)",
2349 dimensions, _mesa_lookup_enum_by_nr(target));
2350 return GL_TRUE;
2351 }
2352
2353 /* level check */
2354 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2355 _mesa_error(ctx, GL_INVALID_VALUE,
2356 "glCopyTexImage%dD(level=%d)", dimensions, level);
2357 return GL_TRUE;
2358 }
2359
2360 /* Check that the source buffer is complete */
2361 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2362 if (ctx->ReadBuffer->_Status == 0) {
2363 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2364 }
2365 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2366 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2367 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2368 return GL_TRUE;
2369 }
2370
2371 if (ctx->ReadBuffer->Visual.samples > 0) {
2372 _mesa_error(ctx, GL_INVALID_OPERATION,
2373 "glCopyTexImage%dD(multisample FBO)",
2374 dimensions);
2375 return GL_TRUE;
2376 }
2377 }
2378
2379 /* Check border */
2380 if (border < 0 || border > 1 ||
2381 ((ctx->API != API_OPENGL_COMPAT ||
2382 target == GL_TEXTURE_RECTANGLE_NV ||
2383 target == GL_PROXY_TEXTURE_RECTANGLE_NV) && border != 0)) {
2384 _mesa_error(ctx, GL_INVALID_VALUE,
2385 "glCopyTexImage%dD(border=%d)", dimensions, border);
2386 return GL_TRUE;
2387 }
2388
2389 rb = _mesa_get_read_renderbuffer_for_format(ctx, internalFormat);
2390 if (rb == NULL) {
2391 _mesa_error(ctx, GL_INVALID_OPERATION,
2392 "glCopyTexImage%dD(read buffer)", dimensions);
2393 return GL_TRUE;
2394 }
2395
2396 /* OpenGL ES 1.x and OpenGL ES 2.0 impose additional restrictions on the
2397 * internalFormat.
2398 */
2399 if (_mesa_is_gles(ctx) && !_mesa_is_gles3(ctx)) {
2400 switch (internalFormat) {
2401 case GL_ALPHA:
2402 case GL_RGB:
2403 case GL_RGBA:
2404 case GL_LUMINANCE:
2405 case GL_LUMINANCE_ALPHA:
2406 break;
2407 default:
2408 _mesa_error(ctx, GL_INVALID_VALUE,
2409 "glCopyTexImage%dD(internalFormat)", dimensions);
2410 return GL_TRUE;
2411 }
2412 }
2413
2414 baseFormat = _mesa_base_tex_format(ctx, internalFormat);
2415 if (baseFormat < 0) {
2416 _mesa_error(ctx, GL_INVALID_OPERATION,
2417 "glCopyTexImage%dD(internalFormat)", dimensions);
2418 return GL_TRUE;
2419 }
2420
2421 rb_internal_format = rb->InternalFormat;
2422 rb_base_format = _mesa_base_tex_format(ctx, rb->InternalFormat);
2423 if (_mesa_is_color_format(internalFormat)) {
2424 if (rb_base_format < 0) {
2425 _mesa_error(ctx, GL_INVALID_VALUE,
2426 "glCopyTexImage%dD(internalFormat)", dimensions);
2427 return GL_TRUE;
2428 }
2429 }
2430
2431 if (_mesa_is_gles(ctx)) {
2432 bool valid = true;
2433 if (_mesa_base_format_component_count(baseFormat) >
2434 _mesa_base_format_component_count(rb_base_format)) {
2435 valid = false;
2436 }
2437 if (baseFormat == GL_DEPTH_COMPONENT ||
2438 baseFormat == GL_DEPTH_STENCIL ||
2439 rb_base_format == GL_DEPTH_COMPONENT ||
2440 rb_base_format == GL_DEPTH_STENCIL ||
2441 ((baseFormat == GL_LUMINANCE_ALPHA ||
2442 baseFormat == GL_ALPHA) &&
2443 rb_base_format != GL_RGBA) ||
2444 internalFormat == GL_RGB9_E5) {
2445 valid = false;
2446 }
2447 if (internalFormat == GL_RGB9_E5) {
2448 valid = false;
2449 }
2450 if (!valid) {
2451 _mesa_error(ctx, GL_INVALID_OPERATION,
2452 "glCopyTexImage%dD(internalFormat)", dimensions);
2453 return GL_TRUE;
2454 }
2455 }
2456
2457 if (_mesa_is_gles3(ctx)) {
2458 bool rb_is_srgb = false;
2459 bool dst_is_srgb = false;
2460
2461 if (ctx->Extensions.EXT_framebuffer_sRGB &&
2462 _mesa_get_format_color_encoding(rb->Format) == GL_SRGB) {
2463 rb_is_srgb = true;
2464 }
2465
2466 if (_mesa_get_linear_internalformat(internalFormat) != internalFormat) {
2467 dst_is_srgb = true;
2468 }
2469
2470 if (rb_is_srgb != dst_is_srgb) {
2471 /* Page 137 (page 149 of the PDF) in section 3.8.5 of the
2472 * OpenGLES 3.0.0 spec says:
2473 *
2474 * "The error INVALID_OPERATION is also generated if the
2475 * value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING for the
2476 * framebuffer attachment corresponding to the read buffer
2477 * is LINEAR (see section 6.1.13) and internalformat is
2478 * one of the sRGB formats described in section 3.8.16, or
2479 * if the value of FRAMEBUFFER_ATTACHMENT_COLOR_ENCODING is
2480 * SRGB and internalformat is not one of the sRGB formats."
2481 */
2482 _mesa_error(ctx, GL_INVALID_OPERATION,
2483 "glCopyTexImage%dD(srgb usage mismatch)", dimensions);
2484 return GL_TRUE;
2485 }
2486 }
2487
2488 if (!_mesa_source_buffer_exists(ctx, baseFormat)) {
2489 _mesa_error(ctx, GL_INVALID_OPERATION,
2490 "glCopyTexImage%dD(missing readbuffer)", dimensions);
2491 return GL_TRUE;
2492 }
2493
2494 /* From the EXT_texture_integer spec:
2495 *
2496 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2497 * if the texture internalformat is an integer format and the read color
2498 * buffer is not an integer format, or if the internalformat is not an
2499 * integer format and the read color buffer is an integer format."
2500 */
2501 if (_mesa_is_color_format(internalFormat)) {
2502 bool is_int = _mesa_is_enum_format_integer(internalFormat);
2503 bool is_rbint = _mesa_is_enum_format_integer(rb_internal_format);
2504 if (is_int || is_rbint) {
2505 if (is_int != is_rbint) {
2506 _mesa_error(ctx, GL_INVALID_OPERATION,
2507 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2508 return GL_TRUE;
2509 } else if (_mesa_is_gles(ctx) &&
2510 _mesa_is_enum_format_unsigned_int(internalFormat) !=
2511 _mesa_is_enum_format_unsigned_int(rb_internal_format)) {
2512 _mesa_error(ctx, GL_INVALID_OPERATION,
2513 "glCopyTexImage%dD(signed vs unsigned integer)", dimensions);
2514 return GL_TRUE;
2515 }
2516 }
2517 }
2518
2519 if ((target == GL_PROXY_TEXTURE_CUBE_MAP_ARB ||
2520 _mesa_is_cube_face(target)) && width != height) {
2521 _mesa_error(ctx, GL_INVALID_VALUE,
2522 "glTexImage2D(cube width != height)");
2523 return GL_TRUE;
2524 }
2525
2526 if (_mesa_is_compressed_format(ctx, internalFormat)) {
2527 if (!target_can_be_compressed(ctx, target, internalFormat)) {
2528 _mesa_error(ctx, GL_INVALID_ENUM,
2529 "glCopyTexImage%dD(target)", dimensions);
2530 return GL_TRUE;
2531 }
2532 if (compressedteximage_only_format(ctx, internalFormat)) {
2533 _mesa_error(ctx, GL_INVALID_OPERATION,
2534 "glCopyTexImage%dD(no compression for format)", dimensions);
2535 return GL_TRUE;
2536 }
2537 if (border != 0) {
2538 _mesa_error(ctx, GL_INVALID_OPERATION,
2539 "glCopyTexImage%dD(border!=0)", dimensions);
2540 return GL_TRUE;
2541 }
2542 }
2543
2544 if (!mutable_tex_object(ctx, target)) {
2545 _mesa_error(ctx, GL_INVALID_OPERATION,
2546 "glCopyTexImage%dD(immutable texture)", dimensions);
2547 return GL_TRUE;
2548 }
2549
2550 /* if we get here, the parameters are OK */
2551 return GL_FALSE;
2552 }
2553
2554
2555 /**
2556 * Test glCopyTexSubImage[12]D() parameters for errors.
2557 * \return GL_TRUE if an error was detected, or GL_FALSE if no errors.
2558 */
2559 static GLboolean
2560 copytexsubimage_error_check(struct gl_context *ctx, GLuint dimensions,
2561 GLenum target, GLint level,
2562 GLint xoffset, GLint yoffset, GLint zoffset,
2563 GLint width, GLint height)
2564 {
2565 struct gl_texture_object *texObj;
2566 struct gl_texture_image *texImage;
2567
2568 /* Check that the source buffer is complete */
2569 if (_mesa_is_user_fbo(ctx->ReadBuffer)) {
2570 if (ctx->ReadBuffer->_Status == 0) {
2571 _mesa_test_framebuffer_completeness(ctx, ctx->ReadBuffer);
2572 }
2573 if (ctx->ReadBuffer->_Status != GL_FRAMEBUFFER_COMPLETE_EXT) {
2574 _mesa_error(ctx, GL_INVALID_FRAMEBUFFER_OPERATION_EXT,
2575 "glCopyTexImage%dD(invalid readbuffer)", dimensions);
2576 return GL_TRUE;
2577 }
2578
2579 if (ctx->ReadBuffer->Visual.samples > 0) {
2580 _mesa_error(ctx, GL_INVALID_OPERATION,
2581 "glCopyTexSubImage%dD(multisample FBO)",
2582 dimensions);
2583 return GL_TRUE;
2584 }
2585 }
2586
2587 /* check target (proxies not allowed) */
2588 if (!legal_texsubimage_target(ctx, dimensions, target)) {
2589 _mesa_error(ctx, GL_INVALID_ENUM, "glCopyTexSubImage%uD(target=%s)",
2590 dimensions, _mesa_lookup_enum_by_nr(target));
2591 return GL_TRUE;
2592 }
2593
2594 /* Check level */
2595 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
2596 _mesa_error(ctx, GL_INVALID_VALUE,
2597 "glCopyTexSubImage%dD(level=%d)", dimensions, level);
2598 return GL_TRUE;
2599 }
2600
2601 /* Get dest texture object / image pointers */
2602 texObj = _mesa_get_current_tex_object(ctx, target);
2603 if (!texObj) {
2604 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexSubImage%dD()", dimensions);
2605 return GL_TRUE;
2606 }
2607
2608 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
2609 if (!texImage) {
2610 /* destination image does not exist */
2611 _mesa_error(ctx, GL_INVALID_OPERATION,
2612 "glCopyTexSubImage%dD(invalid texture image)", dimensions);
2613 return GL_TRUE;
2614 }
2615
2616 if (error_check_subtexture_dimensions(ctx, "glCopyTexSubImage",
2617 dimensions, texImage,
2618 xoffset, yoffset, zoffset,
2619 width, height, 1)) {
2620 return GL_TRUE;
2621 }
2622
2623 if (_mesa_is_format_compressed(texImage->TexFormat)) {
2624 if (compressedteximage_only_format(ctx, texImage->InternalFormat)) {
2625 _mesa_error(ctx, GL_INVALID_OPERATION,
2626 "glCopyTexSubImage%dD(no compression for format)", dimensions);
2627 return GL_TRUE;
2628 }
2629 }
2630
2631 if (texImage->InternalFormat == GL_YCBCR_MESA) {
2632 _mesa_error(ctx, GL_INVALID_OPERATION, "glCopyTexSubImage2D");
2633 return GL_TRUE;
2634 }
2635
2636 if (!_mesa_source_buffer_exists(ctx, texImage->_BaseFormat)) {
2637 _mesa_error(ctx, GL_INVALID_OPERATION,
2638 "glCopyTexSubImage%dD(missing readbuffer, format=0x%x)",
2639 dimensions, texImage->_BaseFormat);
2640 return GL_TRUE;
2641 }
2642
2643 /* From the EXT_texture_integer spec:
2644 *
2645 * "INVALID_OPERATION is generated by CopyTexImage* and CopyTexSubImage*
2646 * if the texture internalformat is an integer format and the read color
2647 * buffer is not an integer format, or if the internalformat is not an
2648 * integer format and the read color buffer is an integer format."
2649 */
2650 if (_mesa_is_color_format(texImage->InternalFormat)) {
2651 struct gl_renderbuffer *rb = ctx->ReadBuffer->_ColorReadBuffer;
2652
2653 if (_mesa_is_format_integer_color(rb->Format) !=
2654 _mesa_is_format_integer_color(texImage->TexFormat)) {
2655 _mesa_error(ctx, GL_INVALID_OPERATION,
2656 "glCopyTexImage%dD(integer vs non-integer)", dimensions);
2657 return GL_TRUE;
2658 }
2659 }
2660
2661 /* if we get here, the parameters are OK */
2662 return GL_FALSE;
2663 }
2664
2665
2666 /** Callback info for walking over FBO hash table */
2667 struct cb_info
2668 {
2669 struct gl_context *ctx;
2670 struct gl_texture_object *texObj;
2671 GLuint level, face;
2672 };
2673
2674
2675 /**
2676 * Check render to texture callback. Called from _mesa_HashWalk().
2677 */
2678 static void
2679 check_rtt_cb(GLuint key, void *data, void *userData)
2680 {
2681 struct gl_framebuffer *fb = (struct gl_framebuffer *) data;
2682 const struct cb_info *info = (struct cb_info *) userData;
2683 struct gl_context *ctx = info->ctx;
2684 const struct gl_texture_object *texObj = info->texObj;
2685 const GLuint level = info->level, face = info->face;
2686
2687 /* If this is a user-created FBO */
2688 if (_mesa_is_user_fbo(fb)) {
2689 GLuint i;
2690 /* check if any of the FBO's attachments point to 'texObj' */
2691 for (i = 0; i < BUFFER_COUNT; i++) {
2692 struct gl_renderbuffer_attachment *att = fb->Attachment + i;
2693 if (att->Type == GL_TEXTURE &&
2694 att->Texture == texObj &&
2695 att->TextureLevel == level &&
2696 att->CubeMapFace == face) {
2697 ASSERT(_mesa_get_attachment_teximage(att));
2698 /* Tell driver about the new renderbuffer texture */
2699 ctx->Driver.RenderTexture(ctx, ctx->DrawBuffer, att);
2700 /* Mark fb status as indeterminate to force re-validation */
2701 fb->_Status = 0;
2702 }
2703 }
2704 }
2705 }
2706
2707
2708 /**
2709 * When a texture image is specified we have to check if it's bound to
2710 * any framebuffer objects (render to texture) in order to detect changes
2711 * in size or format since that effects FBO completeness.
2712 * Any FBOs rendering into the texture must be re-validated.
2713 */
2714 void
2715 _mesa_update_fbo_texture(struct gl_context *ctx,
2716 struct gl_texture_object *texObj,
2717 GLuint face, GLuint level)
2718 {
2719 /* Only check this texture if it's been marked as RenderToTexture */
2720 if (texObj->_RenderToTexture) {
2721 struct cb_info info;
2722 info.ctx = ctx;
2723 info.texObj = texObj;
2724 info.level = level;
2725 info.face = face;
2726 _mesa_HashWalk(ctx->Shared->FrameBuffers, check_rtt_cb, &info);
2727 }
2728 }
2729
2730
2731 /**
2732 * If the texture object's GenerateMipmap flag is set and we've
2733 * changed the texture base level image, regenerate the rest of the
2734 * mipmap levels now.
2735 */
2736 static inline void
2737 check_gen_mipmap(struct gl_context *ctx, GLenum target,
2738 struct gl_texture_object *texObj, GLint level)
2739 {
2740 ASSERT(target != GL_TEXTURE_CUBE_MAP);
2741 if (texObj->GenerateMipmap &&
2742 level == texObj->BaseLevel &&
2743 level < texObj->MaxLevel) {
2744 ASSERT(ctx->Driver.GenerateMipmap);
2745 ctx->Driver.GenerateMipmap(ctx, target, texObj);
2746 }
2747 }
2748
2749
2750 /** Debug helper: override the user-requested internal format */
2751 static GLenum
2752 override_internal_format(GLenum internalFormat, GLint width, GLint height)
2753 {
2754 #if 0
2755 if (internalFormat == GL_RGBA16F_ARB ||
2756 internalFormat == GL_RGBA32F_ARB) {
2757 printf("Convert rgba float tex to int %d x %d\n", width, height);
2758 return GL_RGBA;
2759 }
2760 else if (internalFormat == GL_RGB16F_ARB ||
2761 internalFormat == GL_RGB32F_ARB) {
2762 printf("Convert rgb float tex to int %d x %d\n", width, height);
2763 return GL_RGB;
2764 }
2765 else if (internalFormat == GL_LUMINANCE_ALPHA16F_ARB ||
2766 internalFormat == GL_LUMINANCE_ALPHA32F_ARB) {
2767 printf("Convert luminance float tex to int %d x %d\n", width, height);
2768 return GL_LUMINANCE_ALPHA;
2769 }
2770 else if (internalFormat == GL_LUMINANCE16F_ARB ||
2771 internalFormat == GL_LUMINANCE32F_ARB) {
2772 printf("Convert luminance float tex to int %d x %d\n", width, height);
2773 return GL_LUMINANCE;
2774 }
2775 else if (internalFormat == GL_ALPHA16F_ARB ||
2776 internalFormat == GL_ALPHA32F_ARB) {
2777 printf("Convert luminance float tex to int %d x %d\n", width, height);
2778 return GL_ALPHA;
2779 }
2780 /*
2781 else if (internalFormat == GL_COMPRESSED_RGBA_S3TC_DXT1_EXT) {
2782 internalFormat = GL_RGBA;
2783 }
2784 */
2785 else {
2786 return internalFormat;
2787 }
2788 #else
2789 return internalFormat;
2790 #endif
2791 }
2792
2793
2794 /**
2795 * Choose the actual hardware format for a texture image.
2796 * Try to use the same format as the previous image level when possible.
2797 * Otherwise, ask the driver for the best format.
2798 * It's important to try to choose a consistant format for all levels
2799 * for efficient texture memory layout/allocation. In particular, this
2800 * comes up during automatic mipmap generation.
2801 */
2802 gl_format
2803 _mesa_choose_texture_format(struct gl_context *ctx,
2804 struct gl_texture_object *texObj,
2805 GLenum target, GLint level,
2806 GLenum internalFormat, GLenum format, GLenum type)
2807 {
2808 gl_format f;
2809
2810 /* see if we've already chosen a format for the previous level */
2811 if (level > 0) {
2812 struct gl_texture_image *prevImage =
2813 _mesa_select_tex_image(ctx, texObj, target, level - 1);
2814 /* See if the prev level is defined and has an internal format which
2815 * matches the new internal format.
2816 */
2817 if (prevImage &&
2818 prevImage->Width > 0 &&
2819 prevImage->InternalFormat == internalFormat) {
2820 /* use the same format */
2821 ASSERT(prevImage->TexFormat != MESA_FORMAT_NONE);
2822 return prevImage->TexFormat;
2823 }
2824 }
2825
2826 /* If the application requested compression to an S3TC format but we don't
2827 * have the DTXn library, force a generic compressed format instead.
2828 */
2829 if (internalFormat != format && format != GL_NONE) {
2830 const GLenum before = internalFormat;
2831
2832 switch (internalFormat) {
2833 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
2834 if (!ctx->Mesa_DXTn)
2835 internalFormat = GL_COMPRESSED_RGB;
2836 break;
2837 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
2838 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
2839 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
2840 if (!ctx->Mesa_DXTn)
2841 internalFormat = GL_COMPRESSED_RGBA;
2842 break;
2843 default:
2844 break;
2845 }
2846
2847 if (before != internalFormat) {
2848 _mesa_warning(ctx,
2849 "DXT compression requested (%s), "
2850 "but libtxc_dxtn library not installed. Using %s "
2851 "instead.",
2852 _mesa_lookup_enum_by_nr(before),
2853 _mesa_lookup_enum_by_nr(internalFormat));
2854 }
2855 }
2856
2857 /* choose format from scratch */
2858 f = ctx->Driver.ChooseTextureFormat(ctx, texObj->Target, internalFormat,
2859 format, type);
2860 ASSERT(f != MESA_FORMAT_NONE);
2861 return f;
2862 }
2863
2864 /**
2865 * Adjust pixel unpack params and image dimensions to strip off the
2866 * one-pixel texture border.
2867 *
2868 * Gallium and intel don't support texture borders. They've seldem been used
2869 * and seldom been implemented correctly anyway.
2870 *
2871 * \param unpackNew returns the new pixel unpack parameters
2872 */
2873 static void
2874 strip_texture_border(GLenum target,
2875 GLint *width, GLint *height, GLint *depth,
2876 const struct gl_pixelstore_attrib *unpack,
2877 struct gl_pixelstore_attrib *unpackNew)
2878 {
2879 assert(width);
2880 assert(height);
2881 assert(depth);
2882
2883 *unpackNew = *unpack;
2884
2885 if (unpackNew->RowLength == 0)
2886 unpackNew->RowLength = *width;
2887
2888 if (unpackNew->ImageHeight == 0)
2889 unpackNew->ImageHeight = *height;
2890
2891 assert(*width >= 3);
2892 unpackNew->SkipPixels++; /* skip the border */
2893 *width = *width - 2; /* reduce the width by two border pixels */
2894
2895 /* The min height of a texture with a border is 3 */
2896 if (*height >= 3 && target != GL_TEXTURE_1D_ARRAY) {
2897 unpackNew->SkipRows++; /* skip the border */
2898 *height = *height - 2; /* reduce the height by two border pixels */
2899 }
2900
2901 if (*depth >= 3 && target != GL_TEXTURE_2D_ARRAY && target != GL_TEXTURE_CUBE_MAP_ARRAY) {
2902 unpackNew->SkipImages++; /* skip the border */
2903 *depth = *depth - 2; /* reduce the depth by two border pixels */
2904 }
2905 }
2906
2907
2908 /**
2909 * Common code to implement all the glTexImage1D/2D/3D functions
2910 * as well as glCompressedTexImage1D/2D/3D.
2911 * \param compressed only GL_TRUE for glCompressedTexImage1D/2D/3D calls.
2912 * \param format the user's image format (only used if !compressed)
2913 * \param type the user's image type (only used if !compressed)
2914 * \param imageSize only used for glCompressedTexImage1D/2D/3D calls.
2915 */
2916 static void
2917 teximage(struct gl_context *ctx, GLboolean compressed, GLuint dims,
2918 GLenum target, GLint level, GLint internalFormat,
2919 GLsizei width, GLsizei height, GLsizei depth,
2920 GLint border, GLenum format, GLenum type,
2921 GLsizei imageSize, const GLvoid *pixels)
2922 {
2923 const char *func = compressed ? "glCompressedTexImage" : "glTexImage";
2924 struct gl_pixelstore_attrib unpack_no_border;
2925 const struct gl_pixelstore_attrib *unpack = &ctx->Unpack;
2926 struct gl_texture_object *texObj;
2927 gl_format texFormat;
2928 GLboolean dimensionsOK, sizeOK;
2929
2930 FLUSH_VERTICES(ctx, 0);
2931
2932 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE)) {
2933 if (compressed)
2934 _mesa_debug(ctx,
2935 "glCompressedTexImage%uD %s %d %s %d %d %d %d %p\n",
2936 dims,
2937 _mesa_lookup_enum_by_nr(target), level,
2938 _mesa_lookup_enum_by_nr(internalFormat),
2939 width, height, depth, border, pixels);
2940 else
2941 _mesa_debug(ctx,
2942 "glTexImage%uD %s %d %s %d %d %d %d %s %s %p\n",
2943 dims,
2944 _mesa_lookup_enum_by_nr(target), level,
2945 _mesa_lookup_enum_by_nr(internalFormat),
2946 width, height, depth, border,
2947 _mesa_lookup_enum_by_nr(format),
2948 _mesa_lookup_enum_by_nr(type), pixels);
2949 }
2950
2951 internalFormat = override_internal_format(internalFormat, width, height);
2952
2953 /* target error checking */
2954 if (!legal_teximage_target(ctx, dims, target)) {
2955 _mesa_error(ctx, GL_INVALID_ENUM, "%s%uD(target=%s)",
2956 func, dims, _mesa_lookup_enum_by_nr(target));
2957 return;
2958 }
2959
2960 /* general error checking */
2961 if (compressed) {
2962 if (compressed_texture_error_check(ctx, dims, target, level,
2963 internalFormat,
2964 width, height, depth,
2965 border, imageSize))
2966 return;
2967 }
2968 else {
2969 if (texture_error_check(ctx, dims, target, level, internalFormat,
2970 format, type, width, height, depth, border))
2971 return;
2972 }
2973
2974 /* Here we convert a cpal compressed image into a regular glTexImage2D
2975 * call by decompressing the texture. If we really want to support cpal
2976 * textures in any driver this would have to be changed.
2977 */
2978 if (ctx->API == API_OPENGLES && compressed && dims == 2) {
2979 switch (internalFormat) {
2980 case GL_PALETTE4_RGB8_OES:
2981 case GL_PALETTE4_RGBA8_OES:
2982 case GL_PALETTE4_R5_G6_B5_OES:
2983 case GL_PALETTE4_RGBA4_OES:
2984 case GL_PALETTE4_RGB5_A1_OES:
2985 case GL_PALETTE8_RGB8_OES:
2986 case GL_PALETTE8_RGBA8_OES:
2987 case GL_PALETTE8_R5_G6_B5_OES:
2988 case GL_PALETTE8_RGBA4_OES:
2989 case GL_PALETTE8_RGB5_A1_OES:
2990 _mesa_cpal_compressed_teximage2d(target, level, internalFormat,
2991 width, height, imageSize, pixels);
2992 return;
2993 }
2994 }
2995
2996 texObj = _mesa_get_current_tex_object(ctx, target);
2997 assert(texObj);
2998
2999 if (compressed) {
3000 /* For glCompressedTexImage() the driver has no choice about the
3001 * texture format since we'll never transcode the user's compressed
3002 * image data. The internalFormat was error checked earlier.
3003 */
3004 texFormat = _mesa_glenum_to_compressed_format(internalFormat);
3005 }
3006 else {
3007 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3008 internalFormat, format, type);
3009 }
3010
3011 assert(texFormat != MESA_FORMAT_NONE);
3012
3013 /* check that width, height, depth are legal for the mipmap level */
3014 dimensionsOK = _mesa_legal_texture_dimensions(ctx, target, level, width,
3015 height, depth, border);
3016
3017 /* check that the texture won't take too much memory, etc */
3018 sizeOK = ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3019 level, texFormat,
3020 width, height, depth, border);
3021
3022 if (_mesa_is_proxy_texture(target)) {
3023 /* Proxy texture: just clear or set state depending on error checking */
3024 struct gl_texture_image *texImage =
3025 get_proxy_tex_image(ctx, target, level);
3026
3027 if (!texImage)
3028 return; /* GL_OUT_OF_MEMORY already recorded */
3029
3030 if (dimensionsOK && sizeOK) {
3031 _mesa_init_teximage_fields(ctx, texImage, width, height, depth,
3032 border, internalFormat, texFormat);
3033 }
3034 else {
3035 clear_teximage_fields(texImage);
3036 }
3037 }
3038 else {
3039 /* non-proxy target */
3040 const GLuint face = _mesa_tex_target_to_face(target);
3041 struct gl_texture_image *texImage;
3042
3043 if (!dimensionsOK) {
3044 _mesa_error(ctx, GL_INVALID_VALUE,
3045 "glTexImage%uD(invalid width or height or depth)",
3046 dims);
3047 return;
3048 }
3049
3050 if (!sizeOK) {
3051 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3052 "glTexImage%uD(image too large)", dims);
3053 return;
3054 }
3055
3056 /* Allow a hardware driver to just strip out the border, to provide
3057 * reliable but slightly incorrect hardware rendering instead of
3058 * rarely-tested software fallback rendering.
3059 */
3060 if (border && ctx->Const.StripTextureBorder) {
3061 strip_texture_border(target, &width, &height, &depth, unpack,
3062 &unpack_no_border);
3063 border = 0;
3064 unpack = &unpack_no_border;
3065 }
3066
3067 if (ctx->NewState & _NEW_PIXEL)
3068 _mesa_update_state(ctx);
3069
3070 _mesa_lock_texture(ctx, texObj);
3071 {
3072 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3073
3074 if (!texImage) {
3075 _mesa_error(ctx, GL_OUT_OF_MEMORY, "%s%uD", func, dims);
3076 }
3077 else {
3078 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3079
3080 _mesa_init_teximage_fields(ctx, texImage,
3081 width, height, depth,
3082 border, internalFormat, texFormat);
3083
3084 /* Give the texture to the driver. <pixels> may be null. */
3085 if (width > 0 && height > 0 && depth > 0) {
3086 if (compressed) {
3087 ctx->Driver.CompressedTexImage(ctx, dims, texImage,
3088 imageSize, pixels);
3089 }
3090 else {
3091 ctx->Driver.TexImage(ctx, dims, texImage, format,
3092 type, pixels, unpack);
3093 }
3094 }
3095
3096 check_gen_mipmap(ctx, target, texObj, level);
3097
3098 _mesa_update_fbo_texture(ctx, texObj, face, level);
3099
3100 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3101 }
3102 }
3103 _mesa_unlock_texture(ctx, texObj);
3104 }
3105 }
3106
3107
3108
3109 /*
3110 * Called from the API. Note that width includes the border.
3111 */
3112 void GLAPIENTRY
3113 _mesa_TexImage1D( GLenum target, GLint level, GLint internalFormat,
3114 GLsizei width, GLint border, GLenum format,
3115 GLenum type, const GLvoid *pixels )
3116 {
3117 GET_CURRENT_CONTEXT(ctx);
3118 teximage(ctx, GL_FALSE, 1, target, level, internalFormat, width, 1, 1,
3119 border, format, type, 0, pixels);
3120 }
3121
3122
3123 void GLAPIENTRY
3124 _mesa_TexImage2D( GLenum target, GLint level, GLint internalFormat,
3125 GLsizei width, GLsizei height, GLint border,
3126 GLenum format, GLenum type,
3127 const GLvoid *pixels )
3128 {
3129 GET_CURRENT_CONTEXT(ctx);
3130 teximage(ctx, GL_FALSE, 2, target, level, internalFormat, width, height, 1,
3131 border, format, type, 0, pixels);
3132 }
3133
3134
3135 /*
3136 * Called by the API or display list executor.
3137 * Note that width and height include the border.
3138 */
3139 void GLAPIENTRY
3140 _mesa_TexImage3D( GLenum target, GLint level, GLint internalFormat,
3141 GLsizei width, GLsizei height, GLsizei depth,
3142 GLint border, GLenum format, GLenum type,
3143 const GLvoid *pixels )
3144 {
3145 GET_CURRENT_CONTEXT(ctx);
3146 teximage(ctx, GL_FALSE, 3, target, level, internalFormat,
3147 width, height, depth,
3148 border, format, type, 0, pixels);
3149 }
3150
3151
3152 void GLAPIENTRY
3153 _mesa_TexImage3DEXT( GLenum target, GLint level, GLenum internalFormat,
3154 GLsizei width, GLsizei height, GLsizei depth,
3155 GLint border, GLenum format, GLenum type,
3156 const GLvoid *pixels )
3157 {
3158 _mesa_TexImage3D(target, level, (GLint) internalFormat, width, height,
3159 depth, border, format, type, pixels);
3160 }
3161
3162
3163 void GLAPIENTRY
3164 _mesa_EGLImageTargetTexture2DOES (GLenum target, GLeglImageOES image)
3165 {
3166 struct gl_texture_object *texObj;
3167 struct gl_texture_image *texImage;
3168 bool valid_target;
3169 GET_CURRENT_CONTEXT(ctx);
3170 FLUSH_VERTICES(ctx, 0);
3171
3172 switch (target) {
3173 case GL_TEXTURE_2D:
3174 valid_target = ctx->Extensions.OES_EGL_image;
3175 break;
3176 case GL_TEXTURE_EXTERNAL_OES:
3177 valid_target = ctx->Extensions.OES_EGL_image_external;
3178 break;
3179 default:
3180 valid_target = false;
3181 break;
3182 }
3183
3184 if (!valid_target) {
3185 _mesa_error(ctx, GL_INVALID_ENUM,
3186 "glEGLImageTargetTexture2D(target=%d)", target);
3187 return;
3188 }
3189
3190 if (!image) {
3191 _mesa_error(ctx, GL_INVALID_OPERATION,
3192 "glEGLImageTargetTexture2D(image=%p)", image);
3193 return;
3194 }
3195
3196 if (ctx->NewState & _NEW_PIXEL)
3197 _mesa_update_state(ctx);
3198
3199 texObj = _mesa_get_current_tex_object(ctx, target);
3200 _mesa_lock_texture(ctx, texObj);
3201
3202 if (texObj->Immutable) {
3203 _mesa_error(ctx, GL_INVALID_OPERATION,
3204 "glEGLImageTargetTexture2D(texture is immutable)");
3205 _mesa_unlock_texture(ctx, texObj);
3206 return;
3207 }
3208
3209 texImage = _mesa_get_tex_image(ctx, texObj, target, 0);
3210 if (!texImage) {
3211 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glEGLImageTargetTexture2D");
3212 } else {
3213 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3214
3215 ctx->Driver.EGLImageTargetTexture2D(ctx, target,
3216 texObj, texImage, image);
3217
3218 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3219 }
3220 _mesa_unlock_texture(ctx, texObj);
3221
3222 }
3223
3224
3225
3226 /**
3227 * Implement all the glTexSubImage1/2/3D() functions.
3228 */
3229 static void
3230 texsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3231 GLint xoffset, GLint yoffset, GLint zoffset,
3232 GLsizei width, GLsizei height, GLsizei depth,
3233 GLenum format, GLenum type, const GLvoid *pixels )
3234 {
3235 struct gl_texture_object *texObj;
3236 struct gl_texture_image *texImage;
3237
3238 FLUSH_VERTICES(ctx, 0);
3239
3240 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3241 _mesa_debug(ctx, "glTexSubImage%uD %s %d %d %d %d %d %d %d %s %s %p\n",
3242 dims,
3243 _mesa_lookup_enum_by_nr(target), level,
3244 xoffset, yoffset, zoffset, width, height, depth,
3245 _mesa_lookup_enum_by_nr(format),
3246 _mesa_lookup_enum_by_nr(type), pixels);
3247
3248 /* check target (proxies not allowed) */
3249 if (!legal_texsubimage_target(ctx, dims, target)) {
3250 _mesa_error(ctx, GL_INVALID_ENUM, "glTexSubImage%uD(target=%s)",
3251 dims, _mesa_lookup_enum_by_nr(target));
3252 return;
3253 }
3254
3255 if (ctx->NewState & _NEW_PIXEL)
3256 _mesa_update_state(ctx);
3257
3258 if (texsubimage_error_check(ctx, dims, target, level,
3259 xoffset, yoffset, zoffset,
3260 width, height, depth, format, type)) {
3261 return; /* error was detected */
3262 }
3263
3264 texObj = _mesa_get_current_tex_object(ctx, target);
3265
3266 _mesa_lock_texture(ctx, texObj);
3267 {
3268 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3269
3270 if (width > 0 && height > 0 && depth > 0) {
3271 /* If we have a border, offset=-1 is legal. Bias by border width. */
3272 switch (dims) {
3273 case 3:
3274 if (target != GL_TEXTURE_2D_ARRAY)
3275 zoffset += texImage->Border;
3276 /* fall-through */
3277 case 2:
3278 if (target != GL_TEXTURE_1D_ARRAY)
3279 yoffset += texImage->Border;
3280 /* fall-through */
3281 case 1:
3282 xoffset += texImage->Border;
3283 }
3284
3285 ctx->Driver.TexSubImage(ctx, dims, texImage,
3286 xoffset, yoffset, zoffset,
3287 width, height, depth,
3288 format, type, pixels, &ctx->Unpack);
3289
3290 check_gen_mipmap(ctx, target, texObj, level);
3291
3292 ctx->NewState |= _NEW_TEXTURE;
3293 }
3294 }
3295 _mesa_unlock_texture(ctx, texObj);
3296 }
3297
3298
3299 void GLAPIENTRY
3300 _mesa_TexSubImage1D( GLenum target, GLint level,
3301 GLint xoffset, GLsizei width,
3302 GLenum format, GLenum type,
3303 const GLvoid *pixels )
3304 {
3305 GET_CURRENT_CONTEXT(ctx);
3306 texsubimage(ctx, 1, target, level,
3307 xoffset, 0, 0,
3308 width, 1, 1,
3309 format, type, pixels);
3310 }
3311
3312
3313 void GLAPIENTRY
3314 _mesa_TexSubImage2D( GLenum target, GLint level,
3315 GLint xoffset, GLint yoffset,
3316 GLsizei width, GLsizei height,
3317 GLenum format, GLenum type,
3318 const GLvoid *pixels )
3319 {
3320 GET_CURRENT_CONTEXT(ctx);
3321 texsubimage(ctx, 2, target, level,
3322 xoffset, yoffset, 0,
3323 width, height, 1,
3324 format, type, pixels);
3325 }
3326
3327
3328
3329 void GLAPIENTRY
3330 _mesa_TexSubImage3D( GLenum target, GLint level,
3331 GLint xoffset, GLint yoffset, GLint zoffset,
3332 GLsizei width, GLsizei height, GLsizei depth,
3333 GLenum format, GLenum type,
3334 const GLvoid *pixels )
3335 {
3336 GET_CURRENT_CONTEXT(ctx);
3337 texsubimage(ctx, 3, target, level,
3338 xoffset, yoffset, zoffset,
3339 width, height, depth,
3340 format, type, pixels);
3341 }
3342
3343
3344
3345 /**
3346 * For glCopyTexSubImage, return the source renderbuffer to copy texel data
3347 * from. This depends on whether the texture contains color or depth values.
3348 */
3349 static struct gl_renderbuffer *
3350 get_copy_tex_image_source(struct gl_context *ctx, gl_format texFormat)
3351 {
3352 if (_mesa_get_format_bits(texFormat, GL_DEPTH_BITS) > 0) {
3353 /* reading from depth/stencil buffer */
3354 return ctx->ReadBuffer->Attachment[BUFFER_DEPTH].Renderbuffer;
3355 }
3356 else {
3357 /* copying from color buffer */
3358 return ctx->ReadBuffer->_ColorReadBuffer;
3359 }
3360 }
3361
3362
3363
3364 /**
3365 * Implement the glCopyTexImage1/2D() functions.
3366 */
3367 static void
3368 copyteximage(struct gl_context *ctx, GLuint dims,
3369 GLenum target, GLint level, GLenum internalFormat,
3370 GLint x, GLint y, GLsizei width, GLsizei height, GLint border )
3371 {
3372 struct gl_texture_object *texObj;
3373 struct gl_texture_image *texImage;
3374 const GLuint face = _mesa_tex_target_to_face(target);
3375 gl_format texFormat;
3376
3377 FLUSH_VERTICES(ctx, 0);
3378
3379 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3380 _mesa_debug(ctx, "glCopyTexImage%uD %s %d %s %d %d %d %d %d\n",
3381 dims,
3382 _mesa_lookup_enum_by_nr(target), level,
3383 _mesa_lookup_enum_by_nr(internalFormat),
3384 x, y, width, height, border);
3385
3386 if (ctx->NewState & NEW_COPY_TEX_STATE)
3387 _mesa_update_state(ctx);
3388
3389 if (copytexture_error_check(ctx, dims, target, level, internalFormat,
3390 width, height, border))
3391 return;
3392
3393 if (!_mesa_legal_texture_dimensions(ctx, target, level, width, height,
3394 1, border)) {
3395 _mesa_error(ctx, GL_INVALID_VALUE,
3396 "glCopyTexImage%uD(invalid width or height)", dims);
3397 return;
3398 }
3399
3400 texObj = _mesa_get_current_tex_object(ctx, target);
3401 assert(texObj);
3402
3403 texFormat = _mesa_choose_texture_format(ctx, texObj, target, level,
3404 internalFormat, GL_NONE, GL_NONE);
3405 assert(texFormat != MESA_FORMAT_NONE);
3406
3407 if (!ctx->Driver.TestProxyTexImage(ctx, _mesa_get_proxy_target(target),
3408 level, texFormat,
3409 width, height, 1, border)) {
3410 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3411 "glCopyTexImage%uD(image too large)", dims);
3412 return;
3413 }
3414
3415 if (border && ctx->Const.StripTextureBorder) {
3416 x += border;
3417 width -= border * 2;
3418 if (dims == 2) {
3419 y += border;
3420 height -= border * 2;
3421 }
3422 border = 0;
3423 }
3424
3425 _mesa_lock_texture(ctx, texObj);
3426 {
3427 texImage = _mesa_get_tex_image(ctx, texObj, target, level);
3428
3429 if (!texImage) {
3430 _mesa_error(ctx, GL_OUT_OF_MEMORY, "glCopyTexImage%uD", dims);
3431 }
3432 else {
3433 GLint srcX = x, srcY = y, dstX = 0, dstY = 0, dstZ = 0;
3434
3435 /* Free old texture image */
3436 ctx->Driver.FreeTextureImageBuffer(ctx, texImage);
3437
3438 _mesa_init_teximage_fields(ctx, texImage, width, height, 1,
3439 border, internalFormat, texFormat);
3440
3441 /* Allocate texture memory (no pixel data yet) */
3442 ctx->Driver.AllocTextureImageBuffer(ctx, texImage);
3443
3444 if (_mesa_clip_copytexsubimage(ctx, &dstX, &dstY, &srcX, &srcY,
3445 &width, &height)) {
3446 struct gl_renderbuffer *srcRb =
3447 get_copy_tex_image_source(ctx, texImage->TexFormat);
3448
3449 ctx->Driver.CopyTexSubImage(ctx, dims, texImage, dstX, dstY, dstZ,
3450 srcRb, srcX, srcY, width, height);
3451 }
3452
3453 check_gen_mipmap(ctx, target, texObj, level);
3454
3455 _mesa_update_fbo_texture(ctx, texObj, face, level);
3456
3457 _mesa_dirty_texobj(ctx, texObj, GL_TRUE);
3458 }
3459 }
3460 _mesa_unlock_texture(ctx, texObj);
3461 }
3462
3463
3464
3465 void GLAPIENTRY
3466 _mesa_CopyTexImage1D( GLenum target, GLint level,
3467 GLenum internalFormat,
3468 GLint x, GLint y,
3469 GLsizei width, GLint border )
3470 {
3471 GET_CURRENT_CONTEXT(ctx);
3472 copyteximage(ctx, 1, target, level, internalFormat, x, y, width, 1, border);
3473 }
3474
3475
3476
3477 void GLAPIENTRY
3478 _mesa_CopyTexImage2D( GLenum target, GLint level, GLenum internalFormat,
3479 GLint x, GLint y, GLsizei width, GLsizei height,
3480 GLint border )
3481 {
3482 GET_CURRENT_CONTEXT(ctx);
3483 copyteximage(ctx, 2, target, level, internalFormat,
3484 x, y, width, height, border);
3485 }
3486
3487
3488
3489 /**
3490 * Implementation for glCopyTexSubImage1/2/3D() functions.
3491 */
3492 static void
3493 copytexsubimage(struct gl_context *ctx, GLuint dims, GLenum target, GLint level,
3494 GLint xoffset, GLint yoffset, GLint zoffset,
3495 GLint x, GLint y, GLsizei width, GLsizei height)
3496 {
3497 struct gl_texture_object *texObj;
3498 struct gl_texture_image *texImage;
3499
3500 FLUSH_VERTICES(ctx, 0);
3501
3502 if (MESA_VERBOSE & (VERBOSE_API|VERBOSE_TEXTURE))
3503 _mesa_debug(ctx, "glCopyTexSubImage%uD %s %d %d %d %d %d %d %d %d\n",
3504 dims,
3505 _mesa_lookup_enum_by_nr(target),
3506 level, xoffset, yoffset, zoffset, x, y, width, height);
3507
3508 if (ctx->NewState & NEW_COPY_TEX_STATE)
3509 _mesa_update_state(ctx);
3510
3511 if (copytexsubimage_error_check(ctx, dims, target, level,
3512 xoffset, yoffset, zoffset, width, height)) {
3513 return;
3514 }
3515
3516 texObj = _mesa_get_current_tex_object(ctx, target);
3517
3518 _mesa_lock_texture(ctx, texObj);
3519 {
3520 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3521
3522 /* If we have a border, offset=-1 is legal. Bias by border width. */
3523 switch (dims) {
3524 case 3:
3525 if (target != GL_TEXTURE_2D_ARRAY)
3526 zoffset += texImage->Border;
3527 /* fall-through */
3528 case 2:
3529 if (target != GL_TEXTURE_1D_ARRAY)
3530 yoffset += texImage->Border;
3531 /* fall-through */
3532 case 1:
3533 xoffset += texImage->Border;
3534 }
3535
3536 if (_mesa_clip_copytexsubimage(ctx, &xoffset, &yoffset, &x, &y,
3537 &width, &height)) {
3538 struct gl_renderbuffer *srcRb =
3539 get_copy_tex_image_source(ctx, texImage->TexFormat);
3540
3541 ctx->Driver.CopyTexSubImage(ctx, dims, texImage,
3542 xoffset, yoffset, zoffset,
3543 srcRb, x, y, width, height);
3544
3545 check_gen_mipmap(ctx, target, texObj, level);
3546
3547 ctx->NewState |= _NEW_TEXTURE;
3548 }
3549 }
3550 _mesa_unlock_texture(ctx, texObj);
3551 }
3552
3553
3554 void GLAPIENTRY
3555 _mesa_CopyTexSubImage1D( GLenum target, GLint level,
3556 GLint xoffset, GLint x, GLint y, GLsizei width )
3557 {
3558 GET_CURRENT_CONTEXT(ctx);
3559 copytexsubimage(ctx, 1, target, level, xoffset, 0, 0, x, y, width, 1);
3560 }
3561
3562
3563
3564 void GLAPIENTRY
3565 _mesa_CopyTexSubImage2D( GLenum target, GLint level,
3566 GLint xoffset, GLint yoffset,
3567 GLint x, GLint y, GLsizei width, GLsizei height )
3568 {
3569 GET_CURRENT_CONTEXT(ctx);
3570 copytexsubimage(ctx, 2, target, level, xoffset, yoffset, 0, x, y,
3571 width, height);
3572 }
3573
3574
3575
3576 void GLAPIENTRY
3577 _mesa_CopyTexSubImage3D( GLenum target, GLint level,
3578 GLint xoffset, GLint yoffset, GLint zoffset,
3579 GLint x, GLint y, GLsizei width, GLsizei height )
3580 {
3581 GET_CURRENT_CONTEXT(ctx);
3582 copytexsubimage(ctx, 3, target, level, xoffset, yoffset, zoffset,
3583 x, y, width, height);
3584 }
3585
3586
3587
3588
3589 /**********************************************************************/
3590 /****** Compressed Textures ******/
3591 /**********************************************************************/
3592
3593
3594 /**
3595 * Error checking for glCompressedTexSubImage[123]D().
3596 * \return error code or GL_NO_ERROR.
3597 */
3598 static GLenum
3599 compressed_subtexture_error_check(struct gl_context *ctx, GLint dims,
3600 GLenum target, GLint level,
3601 GLint xoffset, GLint yoffset, GLint zoffset,
3602 GLsizei width, GLsizei height, GLsizei depth,
3603 GLenum format, GLsizei imageSize)
3604 {
3605 struct gl_texture_object *texObj;
3606 struct gl_texture_image *texImage;
3607 GLint expectedSize;
3608 GLboolean targetOK;
3609
3610 switch (dims) {
3611 case 2:
3612 switch (target) {
3613 case GL_TEXTURE_2D:
3614 case GL_TEXTURE_CUBE_MAP_POSITIVE_X:
3615 case GL_TEXTURE_CUBE_MAP_NEGATIVE_X:
3616 case GL_TEXTURE_CUBE_MAP_POSITIVE_Y:
3617 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Y:
3618 case GL_TEXTURE_CUBE_MAP_POSITIVE_Z:
3619 case GL_TEXTURE_CUBE_MAP_NEGATIVE_Z:
3620 targetOK = GL_TRUE;
3621 break;
3622 default:
3623 targetOK = GL_FALSE;
3624 break;
3625 }
3626 break;
3627 case 3:
3628 targetOK = (target == GL_TEXTURE_2D_ARRAY);
3629 break;
3630 default:
3631 assert(dims == 1);
3632 /* no 1D compressed textures at this time */
3633 targetOK = GL_FALSE;
3634 break;
3635 }
3636
3637 if (!targetOK) {
3638 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(target)",
3639 dims);
3640 return GL_TRUE;
3641 }
3642
3643 /* this will catch any invalid compressed format token */
3644 if (!_mesa_is_compressed_format(ctx, format)) {
3645 _mesa_error(ctx, GL_INVALID_ENUM, "glCompressedTexImage%uD(format)",
3646 dims);
3647 return GL_TRUE;
3648 }
3649
3650 if (level < 0 || level >= _mesa_max_texture_levels(ctx, target)) {
3651 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(level=%d)",
3652 dims, level);
3653 return GL_TRUE;
3654 }
3655
3656 expectedSize = compressed_tex_size(width, height, depth, format);
3657 if (expectedSize != imageSize) {
3658 _mesa_error(ctx, GL_INVALID_VALUE, "glCompressedTexImage%uD(size=%d)",
3659 dims, imageSize);
3660 return GL_TRUE;
3661 }
3662
3663 texObj = _mesa_get_current_tex_object(ctx, target);
3664 if (!texObj) {
3665 _mesa_error(ctx, GL_OUT_OF_MEMORY,
3666 "glCompressedTexSubImage%uD()", dims);
3667 return GL_TRUE;
3668 }
3669
3670 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3671 if (!texImage) {
3672 _mesa_error(ctx, GL_INVALID_OPERATION,
3673 "glCompressedTexSubImage%uD(invalid texture image)", dims);
3674 return GL_TRUE;
3675 }
3676
3677 if ((GLint) format != texImage->InternalFormat) {
3678 _mesa_error(ctx, GL_INVALID_OPERATION,
3679 "glCompressedTexSubImage%uD(format=0x%x)", dims, format);
3680 return GL_TRUE;
3681 }
3682
3683 if (compressedteximage_only_format(ctx, format)) {
3684 _mesa_error(ctx, GL_INVALID_OPERATION,
3685 "glCompressedTexSubImage%uD(format=0x%x cannot be updated)"
3686 , dims, format);
3687 return GL_TRUE;
3688 }
3689
3690 if (error_check_subtexture_dimensions(ctx, "glCompressedTexSubImage", dims,
3691 texImage, xoffset, yoffset, zoffset,
3692 width, height, depth)) {
3693 return GL_TRUE;
3694 }
3695
3696 return GL_FALSE;
3697 }
3698
3699
3700 void GLAPIENTRY
3701 _mesa_CompressedTexImage1D(GLenum target, GLint level,
3702 GLenum internalFormat, GLsizei width,
3703 GLint border, GLsizei imageSize,
3704 const GLvoid *data)
3705 {
3706 GET_CURRENT_CONTEXT(ctx);
3707 teximage(ctx, GL_TRUE, 1, target, level, internalFormat,
3708 width, 1, 1, border, GL_NONE, GL_NONE, imageSize, data);
3709 }
3710
3711
3712 void GLAPIENTRY
3713 _mesa_CompressedTexImage2D(GLenum target, GLint level,
3714 GLenum internalFormat, GLsizei width,
3715 GLsizei height, GLint border, GLsizei imageSize,
3716 const GLvoid *data)
3717 {
3718 GET_CURRENT_CONTEXT(ctx);
3719 teximage(ctx, GL_TRUE, 2, target, level, internalFormat,
3720 width, height, 1, border, GL_NONE, GL_NONE, imageSize, data);
3721 }
3722
3723
3724 void GLAPIENTRY
3725 _mesa_CompressedTexImage3D(GLenum target, GLint level,
3726 GLenum internalFormat, GLsizei width,
3727 GLsizei height, GLsizei depth, GLint border,
3728 GLsizei imageSize, const GLvoid *data)
3729 {
3730 GET_CURRENT_CONTEXT(ctx);
3731 teximage(ctx, GL_TRUE, 3, target, level, internalFormat,
3732 width, height, depth, border, GL_NONE, GL_NONE, imageSize, data);
3733 }
3734
3735
3736 /**
3737 * Common helper for glCompressedTexSubImage1/2/3D().
3738 */
3739 static void
3740 compressed_tex_sub_image(GLuint dims, GLenum target, GLint level,
3741 GLint xoffset, GLint yoffset, GLint zoffset,
3742 GLsizei width, GLsizei height, GLsizei depth,
3743 GLenum format, GLsizei imageSize, const GLvoid *data)
3744 {
3745 struct gl_texture_object *texObj;
3746 struct gl_texture_image *texImage;
3747 GET_CURRENT_CONTEXT(ctx);
3748 FLUSH_VERTICES(ctx, 0);
3749
3750 if (compressed_subtexture_error_check(ctx, dims, target, level,
3751 xoffset, yoffset, zoffset,
3752 width, height, depth,
3753 format, imageSize)) {
3754 return;
3755 }
3756
3757 texObj = _mesa_get_current_tex_object(ctx, target);
3758
3759 _mesa_lock_texture(ctx, texObj);
3760 {
3761 texImage = _mesa_select_tex_image(ctx, texObj, target, level);
3762 assert(texImage);
3763
3764 if (width > 0 && height > 0 && depth > 0) {
3765 ctx->Driver.CompressedTexSubImage(ctx, dims, texImage,
3766 xoffset, yoffset, zoffset,
3767 width, height, depth,
3768 format, imageSize, data);
3769
3770 check_gen_mipmap(ctx, target, texObj, level);
3771
3772 ctx->NewState |= _NEW_TEXTURE;
3773 }
3774 }
3775 _mesa_unlock_texture(ctx, texObj);
3776 }
3777
3778
3779 void GLAPIENTRY
3780 _mesa_CompressedTexSubImage1D(GLenum target, GLint level, GLint xoffset,
3781 GLsizei width, GLenum format,
3782 GLsizei imageSize, const GLvoid *data)
3783 {
3784 compressed_tex_sub_image(1, target, level, xoffset, 0, 0, width, 1, 1,
3785 format, imageSize, data);
3786 }
3787
3788
3789 void GLAPIENTRY
3790 _mesa_CompressedTexSubImage2D(GLenum target, GLint level, GLint xoffset,
3791 GLint yoffset, GLsizei width, GLsizei height,
3792 GLenum format, GLsizei imageSize,
3793 const GLvoid *data)
3794 {
3795 compressed_tex_sub_image(2, target, level, xoffset, yoffset, 0,
3796 width, height, 1, format, imageSize, data);
3797 }
3798
3799
3800 void GLAPIENTRY
3801 _mesa_CompressedTexSubImage3D(GLenum target, GLint level, GLint xoffset,
3802 GLint yoffset, GLint zoffset, GLsizei width,
3803 GLsizei height, GLsizei depth, GLenum format,
3804 GLsizei imageSize, const GLvoid *data)
3805 {
3806 compressed_tex_sub_image(3, target, level, xoffset, yoffset, zoffset,
3807 width, height, depth, format, imageSize, data);
3808 }
3809
3810 static gl_format
3811 get_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3812 {
3813 switch (internalFormat) {
3814 case GL_ALPHA8:
3815 return MESA_FORMAT_A8;
3816 case GL_ALPHA16:
3817 return MESA_FORMAT_A16;
3818 case GL_ALPHA16F_ARB:
3819 return MESA_FORMAT_ALPHA_FLOAT16;
3820 case GL_ALPHA32F_ARB:
3821 return MESA_FORMAT_ALPHA_FLOAT32;
3822 case GL_ALPHA8I_EXT:
3823 return MESA_FORMAT_ALPHA_INT8;
3824 case GL_ALPHA16I_EXT:
3825 return MESA_FORMAT_ALPHA_INT16;
3826 case GL_ALPHA32I_EXT:
3827 return MESA_FORMAT_ALPHA_INT32;
3828 case GL_ALPHA8UI_EXT:
3829 return MESA_FORMAT_ALPHA_UINT8;
3830 case GL_ALPHA16UI_EXT:
3831 return MESA_FORMAT_ALPHA_UINT16;
3832 case GL_ALPHA32UI_EXT:
3833 return MESA_FORMAT_ALPHA_UINT32;
3834 case GL_LUMINANCE8:
3835 return MESA_FORMAT_L8;
3836 case GL_LUMINANCE16:
3837 return MESA_FORMAT_L16;
3838 case GL_LUMINANCE16F_ARB:
3839 return MESA_FORMAT_LUMINANCE_FLOAT16;
3840 case GL_LUMINANCE32F_ARB:
3841 return MESA_FORMAT_LUMINANCE_FLOAT32;
3842 case GL_LUMINANCE8I_EXT:
3843 return MESA_FORMAT_LUMINANCE_INT8;
3844 case GL_LUMINANCE16I_EXT:
3845 return MESA_FORMAT_LUMINANCE_INT16;
3846 case GL_LUMINANCE32I_EXT:
3847 return MESA_FORMAT_LUMINANCE_INT32;
3848 case GL_LUMINANCE8UI_EXT:
3849 return MESA_FORMAT_LUMINANCE_UINT8;
3850 case GL_LUMINANCE16UI_EXT:
3851 return MESA_FORMAT_LUMINANCE_UINT16;
3852 case GL_LUMINANCE32UI_EXT:
3853 return MESA_FORMAT_LUMINANCE_UINT32;
3854 case GL_LUMINANCE8_ALPHA8:
3855 return MESA_FORMAT_AL88;
3856 case GL_LUMINANCE16_ALPHA16:
3857 return MESA_FORMAT_AL1616;
3858 case GL_LUMINANCE_ALPHA16F_ARB:
3859 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
3860 case GL_LUMINANCE_ALPHA32F_ARB:
3861 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
3862 case GL_LUMINANCE_ALPHA8I_EXT:
3863 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3864 case GL_LUMINANCE_ALPHA16I_EXT:
3865 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
3866 case GL_LUMINANCE_ALPHA32I_EXT:
3867 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
3868 case GL_LUMINANCE_ALPHA8UI_EXT:
3869 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
3870 case GL_LUMINANCE_ALPHA16UI_EXT:
3871 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
3872 case GL_LUMINANCE_ALPHA32UI_EXT:
3873 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
3874 case GL_INTENSITY8:
3875 return MESA_FORMAT_I8;
3876 case GL_INTENSITY16:
3877 return MESA_FORMAT_I16;
3878 case GL_INTENSITY16F_ARB:
3879 return MESA_FORMAT_INTENSITY_FLOAT16;
3880 case GL_INTENSITY32F_ARB:
3881 return MESA_FORMAT_INTENSITY_FLOAT32;
3882 case GL_INTENSITY8I_EXT:
3883 return MESA_FORMAT_INTENSITY_INT8;
3884 case GL_INTENSITY16I_EXT:
3885 return MESA_FORMAT_INTENSITY_INT16;
3886 case GL_INTENSITY32I_EXT:
3887 return MESA_FORMAT_INTENSITY_INT32;
3888 case GL_INTENSITY8UI_EXT:
3889 return MESA_FORMAT_INTENSITY_UINT8;
3890 case GL_INTENSITY16UI_EXT:
3891 return MESA_FORMAT_INTENSITY_UINT16;
3892 case GL_INTENSITY32UI_EXT:
3893 return MESA_FORMAT_INTENSITY_UINT32;
3894 case GL_RGBA8:
3895 return MESA_FORMAT_RGBA8888_REV;
3896 case GL_RGBA16:
3897 return MESA_FORMAT_RGBA_16;
3898 case GL_RGBA16F_ARB:
3899 return MESA_FORMAT_RGBA_FLOAT16;
3900 case GL_RGBA32F_ARB:
3901 return MESA_FORMAT_RGBA_FLOAT32;
3902 case GL_RGBA8I_EXT:
3903 return MESA_FORMAT_RGBA_INT8;
3904 case GL_RGBA16I_EXT:
3905 return MESA_FORMAT_RGBA_INT16;
3906 case GL_RGBA32I_EXT:
3907 return MESA_FORMAT_RGBA_INT32;
3908 case GL_RGBA8UI_EXT:
3909 return MESA_FORMAT_RGBA_UINT8;
3910 case GL_RGBA16UI_EXT:
3911 return MESA_FORMAT_RGBA_UINT16;
3912 case GL_RGBA32UI_EXT:
3913 return MESA_FORMAT_RGBA_UINT32;
3914
3915 case GL_RG8:
3916 return MESA_FORMAT_GR88;
3917 case GL_RG16:
3918 return MESA_FORMAT_GR1616;
3919 case GL_RG16F:
3920 return MESA_FORMAT_RG_FLOAT16;
3921 case GL_RG32F:
3922 return MESA_FORMAT_RG_FLOAT32;
3923 case GL_RG8I:
3924 return MESA_FORMAT_RG_INT8;
3925 case GL_RG16I:
3926 return MESA_FORMAT_RG_INT16;
3927 case GL_RG32I:
3928 return MESA_FORMAT_RG_INT32;
3929 case GL_RG8UI:
3930 return MESA_FORMAT_RG_UINT8;
3931 case GL_RG16UI:
3932 return MESA_FORMAT_RG_UINT16;
3933 case GL_RG32UI:
3934 return MESA_FORMAT_RG_UINT32;
3935
3936 case GL_R8:
3937 return MESA_FORMAT_R8;
3938 case GL_R16:
3939 return MESA_FORMAT_R16;
3940 case GL_R16F:
3941 return MESA_FORMAT_R_FLOAT16;
3942 case GL_R32F:
3943 return MESA_FORMAT_R_FLOAT32;
3944 case GL_R8I:
3945 return MESA_FORMAT_R_INT8;
3946 case GL_R16I:
3947 return MESA_FORMAT_R_INT16;
3948 case GL_R32I:
3949 return MESA_FORMAT_R_INT32;
3950 case GL_R8UI:
3951 return MESA_FORMAT_R_UINT8;
3952 case GL_R16UI:
3953 return MESA_FORMAT_R_UINT16;
3954 case GL_R32UI:
3955 return MESA_FORMAT_R_UINT32;
3956
3957 case GL_RGB32F:
3958 return MESA_FORMAT_RGB_FLOAT32;
3959 case GL_RGB32UI:
3960 return MESA_FORMAT_RGB_UINT32;
3961 case GL_RGB32I:
3962 return MESA_FORMAT_RGB_INT32;
3963
3964 default:
3965 return MESA_FORMAT_NONE;
3966 }
3967 }
3968
3969 static gl_format
3970 validate_texbuffer_format(const struct gl_context *ctx, GLenum internalFormat)
3971 {
3972 gl_format format = get_texbuffer_format(ctx, internalFormat);
3973 GLenum datatype;
3974
3975 if (format == MESA_FORMAT_NONE)
3976 return MESA_FORMAT_NONE;
3977
3978 datatype = _mesa_get_format_datatype(format);
3979 if (datatype == GL_FLOAT && !ctx->Extensions.ARB_texture_float)
3980 return MESA_FORMAT_NONE;
3981
3982 if (datatype == GL_HALF_FLOAT && !ctx->Extensions.ARB_half_float_pixel)
3983 return MESA_FORMAT_NONE;
3984
3985 /* The GL_ARB_texture_rg and GL_ARB_texture_buffer_object specs don't make
3986 * any mention of R/RG formats, but they appear in the GL 3.1 core
3987 * specification.
3988 */
3989 if (ctx->Version <= 30) {
3990 GLenum base_format = _mesa_get_format_base_format(format);
3991
3992 if (base_format == GL_R || base_format == GL_RG)
3993 return MESA_FORMAT_NONE;
3994 }
3995
3996 if (!ctx->Extensions.ARB_texture_buffer_object_rgb32) {
3997 GLenum base_format = _mesa_get_format_base_format(format);
3998 if (base_format == GL_RGB)
3999 return MESA_FORMAT_NONE;
4000 }
4001 return format;
4002 }
4003
4004
4005 static void
4006 texbufferrange(struct gl_context *ctx, GLenum target, GLenum internalFormat,
4007 struct gl_buffer_object *bufObj,
4008 GLintptr offset, GLsizeiptr size)
4009 {
4010 struct gl_texture_object *texObj;
4011 gl_format format;
4012
4013 FLUSH_VERTICES(ctx, 0);
4014
4015 if (target != GL_TEXTURE_BUFFER_ARB) {
4016 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(target)");
4017 return;
4018 }
4019
4020 format = validate_texbuffer_format(ctx, internalFormat);
4021 if (format == MESA_FORMAT_NONE) {
4022 _mesa_error(ctx, GL_INVALID_ENUM, "glTexBuffer(internalFormat 0x%x)",
4023 internalFormat);
4024 return;
4025 }
4026
4027 texObj = _mesa_get_current_tex_object(ctx, target);
4028
4029 _mesa_lock_texture(ctx, texObj);
4030 {
4031 _mesa_reference_buffer_object(ctx, &texObj->BufferObject, bufObj);
4032 texObj->BufferObjectFormat = internalFormat;
4033 texObj->_BufferObjectFormat = format;
4034 texObj->BufferOffset = offset;
4035 texObj->BufferSize = size;
4036 }
4037 _mesa_unlock_texture(ctx, texObj);
4038 }
4039
4040 /** GL_ARB_texture_buffer_object */
4041 void GLAPIENTRY
4042 _mesa_TexBuffer(GLenum target, GLenum internalFormat, GLuint buffer)
4043 {
4044 struct gl_buffer_object *bufObj;
4045
4046 GET_CURRENT_CONTEXT(ctx);
4047
4048 /* NOTE: ARB_texture_buffer_object has interactions with
4049 * the compatibility profile that are not implemented.
4050 */
4051 if (!(ctx->API == API_OPENGL_CORE &&
4052 ctx->Extensions.ARB_texture_buffer_object)) {
4053 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer");
4054 return;
4055 }
4056
4057 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4058 if (!bufObj && buffer) {
4059 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBuffer(buffer %u)", buffer);
4060 return;
4061 }
4062
4063 texbufferrange(ctx, target, internalFormat, bufObj, 0, buffer ? -1 : 0);
4064 }
4065
4066 /** GL_ARB_texture_buffer_range */
4067 void GLAPIENTRY
4068 _mesa_TexBufferRange(GLenum target, GLenum internalFormat, GLuint buffer,
4069 GLintptr offset, GLsizeiptr size)
4070 {
4071 struct gl_buffer_object *bufObj;
4072
4073 GET_CURRENT_CONTEXT(ctx);
4074
4075 if (!(ctx->API == API_OPENGL_CORE &&
4076 ctx->Extensions.ARB_texture_buffer_range)) {
4077 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange");
4078 return;
4079 }
4080
4081 bufObj = _mesa_lookup_bufferobj(ctx, buffer);
4082 if (bufObj) {
4083 if (offset < 0 ||
4084 size <= 0 ||
4085 (offset + size) > bufObj->Size) {
4086 _mesa_error(ctx, GL_INVALID_VALUE, "glTexBufferRange");
4087 return;
4088 }
4089 if (offset % ctx->Const.TextureBufferOffsetAlignment) {
4090 _mesa_error(ctx, GL_INVALID_VALUE,
4091 "glTexBufferRange(invalid offset alignment)");
4092 return;
4093 }
4094 } else if (buffer) {
4095 _mesa_error(ctx, GL_INVALID_OPERATION, "glTexBufferRange(buffer %u)",
4096 buffer);
4097 return;
4098 } else {
4099 offset = 0;
4100 size = 0;
4101 }
4102
4103 texbufferrange(ctx, target, internalFormat, bufObj, offset, size);
4104 }