1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
6 * Copyright (c) 2012 Intel Corporation
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 #include "context.h"
28 #include "glformats.h"
29
30
31 /**
32 * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
33 */
34 GLboolean
_mesa_type_is_packed(GLenum type)35 _mesa_type_is_packed(GLenum type)
36 {
37 switch (type) {
38 case GL_UNSIGNED_BYTE_3_3_2:
39 case GL_UNSIGNED_BYTE_2_3_3_REV:
40 case MESA_UNSIGNED_BYTE_4_4:
41 case GL_UNSIGNED_SHORT_5_6_5:
42 case GL_UNSIGNED_SHORT_5_6_5_REV:
43 case GL_UNSIGNED_SHORT_4_4_4_4:
44 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
45 case GL_UNSIGNED_SHORT_5_5_5_1:
46 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
47 case GL_UNSIGNED_INT_8_8_8_8:
48 case GL_UNSIGNED_INT_8_8_8_8_REV:
49 case GL_UNSIGNED_INT_10_10_10_2:
50 case GL_UNSIGNED_INT_2_10_10_10_REV:
51 case GL_UNSIGNED_SHORT_8_8_MESA:
52 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
53 case GL_UNSIGNED_INT_24_8_EXT:
54 case GL_UNSIGNED_INT_5_9_9_9_REV:
55 case GL_UNSIGNED_INT_10F_11F_11F_REV:
56 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
57 return GL_TRUE;
58 }
59
60 return GL_FALSE;
61 }
62
63
64 /**
65 * Get the size of a GL data type.
66 *
67 * \param type GL data type.
68 *
69 * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
70 * if an invalid type enum.
71 */
72 GLint
_mesa_sizeof_type(GLenum type)73 _mesa_sizeof_type(GLenum type)
74 {
75 switch (type) {
76 case GL_BITMAP:
77 return 0;
78 case GL_UNSIGNED_BYTE:
79 return sizeof(GLubyte);
80 case GL_BYTE:
81 return sizeof(GLbyte);
82 case GL_UNSIGNED_SHORT:
83 return sizeof(GLushort);
84 case GL_SHORT:
85 return sizeof(GLshort);
86 case GL_UNSIGNED_INT:
87 return sizeof(GLuint);
88 case GL_INT:
89 return sizeof(GLint);
90 case GL_FLOAT:
91 return sizeof(GLfloat);
92 case GL_DOUBLE:
93 return sizeof(GLdouble);
94 case GL_HALF_FLOAT_ARB:
95 return sizeof(GLhalfARB);
96 case GL_FIXED:
97 return sizeof(GLfixed);
98 default:
99 return -1;
100 }
101 }
102
103
104 /**
105 * Same as _mesa_sizeof_type() but also accepting the packed pixel
106 * format data types.
107 */
108 GLint
_mesa_sizeof_packed_type(GLenum type)109 _mesa_sizeof_packed_type(GLenum type)
110 {
111 switch (type) {
112 case GL_BITMAP:
113 return 0;
114 case GL_UNSIGNED_BYTE:
115 return sizeof(GLubyte);
116 case GL_BYTE:
117 return sizeof(GLbyte);
118 case GL_UNSIGNED_SHORT:
119 return sizeof(GLushort);
120 case GL_SHORT:
121 return sizeof(GLshort);
122 case GL_UNSIGNED_INT:
123 return sizeof(GLuint);
124 case GL_INT:
125 return sizeof(GLint);
126 case GL_HALF_FLOAT_ARB:
127 return sizeof(GLhalfARB);
128 case GL_FLOAT:
129 return sizeof(GLfloat);
130 case GL_UNSIGNED_BYTE_3_3_2:
131 case GL_UNSIGNED_BYTE_2_3_3_REV:
132 case MESA_UNSIGNED_BYTE_4_4:
133 return sizeof(GLubyte);
134 case GL_UNSIGNED_SHORT_5_6_5:
135 case GL_UNSIGNED_SHORT_5_6_5_REV:
136 case GL_UNSIGNED_SHORT_4_4_4_4:
137 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
138 case GL_UNSIGNED_SHORT_5_5_5_1:
139 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
140 case GL_UNSIGNED_SHORT_8_8_MESA:
141 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
142 return sizeof(GLushort);
143 case GL_UNSIGNED_INT_8_8_8_8:
144 case GL_UNSIGNED_INT_8_8_8_8_REV:
145 case GL_UNSIGNED_INT_10_10_10_2:
146 case GL_UNSIGNED_INT_2_10_10_10_REV:
147 case GL_UNSIGNED_INT_24_8_EXT:
148 case GL_UNSIGNED_INT_5_9_9_9_REV:
149 case GL_UNSIGNED_INT_10F_11F_11F_REV:
150 return sizeof(GLuint);
151 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
152 return 8;
153 default:
154 return -1;
155 }
156 }
157
158
159 /**
160 * Get the number of components in a pixel format.
161 *
162 * \param format pixel format.
163 *
164 * \return the number of components in the given format, or -1 if a bad format.
165 */
166 GLint
_mesa_components_in_format(GLenum format)167 _mesa_components_in_format(GLenum format)
168 {
169 switch (format) {
170 case GL_COLOR_INDEX:
171 case GL_STENCIL_INDEX:
172 case GL_DEPTH_COMPONENT:
173 case GL_RED:
174 case GL_RED_INTEGER_EXT:
175 case GL_GREEN:
176 case GL_GREEN_INTEGER_EXT:
177 case GL_BLUE:
178 case GL_BLUE_INTEGER_EXT:
179 case GL_ALPHA:
180 case GL_ALPHA_INTEGER_EXT:
181 case GL_LUMINANCE:
182 case GL_LUMINANCE_INTEGER_EXT:
183 case GL_INTENSITY:
184 return 1;
185
186 case GL_LUMINANCE_ALPHA:
187 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
188 case GL_RG:
189 case GL_YCBCR_MESA:
190 case GL_DEPTH_STENCIL_EXT:
191 case GL_DUDV_ATI:
192 case GL_DU8DV8_ATI:
193 case GL_RG_INTEGER:
194 return 2;
195
196 case GL_RGB:
197 case GL_BGR:
198 case GL_RGB_INTEGER_EXT:
199 case GL_BGR_INTEGER_EXT:
200 return 3;
201
202 case GL_RGBA:
203 case GL_BGRA:
204 case GL_ABGR_EXT:
205 case GL_RGBA_INTEGER_EXT:
206 case GL_BGRA_INTEGER_EXT:
207 return 4;
208
209 default:
210 return -1;
211 }
212 }
213
214
215 /**
216 * Get the bytes per pixel of pixel format type pair.
217 *
218 * \param format pixel format.
219 * \param type pixel type.
220 *
221 * \return bytes per pixel, or -1 if a bad format or type was given.
222 */
223 GLint
_mesa_bytes_per_pixel(GLenum format,GLenum type)224 _mesa_bytes_per_pixel(GLenum format, GLenum type)
225 {
226 GLint comps = _mesa_components_in_format(format);
227 if (comps < 0)
228 return -1;
229
230 switch (type) {
231 case GL_BITMAP:
232 return 0; /* special case */
233 case GL_BYTE:
234 case GL_UNSIGNED_BYTE:
235 return comps * sizeof(GLubyte);
236 case GL_SHORT:
237 case GL_UNSIGNED_SHORT:
238 return comps * sizeof(GLshort);
239 case GL_INT:
240 case GL_UNSIGNED_INT:
241 return comps * sizeof(GLint);
242 case GL_FLOAT:
243 return comps * sizeof(GLfloat);
244 case GL_HALF_FLOAT_ARB:
245 return comps * sizeof(GLhalfARB);
246 case GL_UNSIGNED_BYTE_3_3_2:
247 case GL_UNSIGNED_BYTE_2_3_3_REV:
248 if (format == GL_RGB || format == GL_BGR ||
249 format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
250 return sizeof(GLubyte);
251 else
252 return -1; /* error */
253 case GL_UNSIGNED_SHORT_5_6_5:
254 case GL_UNSIGNED_SHORT_5_6_5_REV:
255 if (format == GL_RGB || format == GL_BGR ||
256 format == GL_RGB_INTEGER_EXT || format == GL_BGR_INTEGER_EXT)
257 return sizeof(GLushort);
258 else
259 return -1; /* error */
260 case GL_UNSIGNED_SHORT_4_4_4_4:
261 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
262 case GL_UNSIGNED_SHORT_5_5_5_1:
263 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
264 if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
265 format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
266 return sizeof(GLushort);
267 else
268 return -1;
269 case GL_UNSIGNED_INT_8_8_8_8:
270 case GL_UNSIGNED_INT_8_8_8_8_REV:
271 case GL_UNSIGNED_INT_10_10_10_2:
272 case GL_UNSIGNED_INT_2_10_10_10_REV:
273 if (format == GL_RGBA || format == GL_BGRA || format == GL_ABGR_EXT ||
274 format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT)
275 return sizeof(GLuint);
276 else
277 return -1;
278 case GL_UNSIGNED_SHORT_8_8_MESA:
279 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
280 if (format == GL_YCBCR_MESA)
281 return sizeof(GLushort);
282 else
283 return -1;
284 case GL_UNSIGNED_INT_24_8_EXT:
285 if (format == GL_DEPTH_STENCIL_EXT)
286 return sizeof(GLuint);
287 else
288 return -1;
289 case GL_UNSIGNED_INT_5_9_9_9_REV:
290 if (format == GL_RGB)
291 return sizeof(GLuint);
292 else
293 return -1;
294 case GL_UNSIGNED_INT_10F_11F_11F_REV:
295 if (format == GL_RGB)
296 return sizeof(GLuint);
297 else
298 return -1;
299 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
300 if (format == GL_DEPTH_STENCIL)
301 return 8;
302 else
303 return -1;
304 default:
305 return -1;
306 }
307 }
308
309
310 /**
311 * Test if the given format is an integer (non-normalized) format.
312 */
313 GLboolean
_mesa_is_enum_format_integer(GLenum format)314 _mesa_is_enum_format_integer(GLenum format)
315 {
316 switch (format) {
317 /* generic integer formats */
318 case GL_RED_INTEGER_EXT:
319 case GL_GREEN_INTEGER_EXT:
320 case GL_BLUE_INTEGER_EXT:
321 case GL_ALPHA_INTEGER_EXT:
322 case GL_RGB_INTEGER_EXT:
323 case GL_RGBA_INTEGER_EXT:
324 case GL_BGR_INTEGER_EXT:
325 case GL_BGRA_INTEGER_EXT:
326 case GL_LUMINANCE_INTEGER_EXT:
327 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
328 case GL_RG_INTEGER:
329 /* specific integer formats */
330 case GL_RGBA32UI_EXT:
331 case GL_RGB32UI_EXT:
332 case GL_RG32UI:
333 case GL_R32UI:
334 case GL_ALPHA32UI_EXT:
335 case GL_INTENSITY32UI_EXT:
336 case GL_LUMINANCE32UI_EXT:
337 case GL_LUMINANCE_ALPHA32UI_EXT:
338 case GL_RGBA16UI_EXT:
339 case GL_RGB16UI_EXT:
340 case GL_RG16UI:
341 case GL_R16UI:
342 case GL_ALPHA16UI_EXT:
343 case GL_INTENSITY16UI_EXT:
344 case GL_LUMINANCE16UI_EXT:
345 case GL_LUMINANCE_ALPHA16UI_EXT:
346 case GL_RGBA8UI_EXT:
347 case GL_RGB8UI_EXT:
348 case GL_RG8UI:
349 case GL_R8UI:
350 case GL_ALPHA8UI_EXT:
351 case GL_INTENSITY8UI_EXT:
352 case GL_LUMINANCE8UI_EXT:
353 case GL_LUMINANCE_ALPHA8UI_EXT:
354 case GL_RGBA32I_EXT:
355 case GL_RGB32I_EXT:
356 case GL_RG32I:
357 case GL_R32I:
358 case GL_ALPHA32I_EXT:
359 case GL_INTENSITY32I_EXT:
360 case GL_LUMINANCE32I_EXT:
361 case GL_LUMINANCE_ALPHA32I_EXT:
362 case GL_RGBA16I_EXT:
363 case GL_RGB16I_EXT:
364 case GL_RG16I:
365 case GL_R16I:
366 case GL_ALPHA16I_EXT:
367 case GL_INTENSITY16I_EXT:
368 case GL_LUMINANCE16I_EXT:
369 case GL_LUMINANCE_ALPHA16I_EXT:
370 case GL_RGBA8I_EXT:
371 case GL_RGB8I_EXT:
372 case GL_RG8I:
373 case GL_R8I:
374 case GL_ALPHA8I_EXT:
375 case GL_INTENSITY8I_EXT:
376 case GL_LUMINANCE8I_EXT:
377 case GL_LUMINANCE_ALPHA8I_EXT:
378 case GL_RGB10_A2UI:
379 return GL_TRUE;
380 default:
381 return GL_FALSE;
382 }
383 }
384
385
386 /**
387 * Test if the given type is an integer (non-normalized) format.
388 */
389 GLboolean
_mesa_is_type_integer(GLenum type)390 _mesa_is_type_integer(GLenum type)
391 {
392 switch (type) {
393 case GL_INT:
394 case GL_UNSIGNED_INT:
395 case GL_SHORT:
396 case GL_UNSIGNED_SHORT:
397 case GL_BYTE:
398 case GL_UNSIGNED_BYTE:
399 return GL_TRUE;
400 default:
401 return GL_FALSE;
402 }
403 }
404
405
406 /**
407 * Test if the given format or type is an integer (non-normalized) format.
408 */
409 extern GLboolean
_mesa_is_enum_format_or_type_integer(GLenum format,GLenum type)410 _mesa_is_enum_format_or_type_integer(GLenum format, GLenum type)
411 {
412 return _mesa_is_enum_format_integer(format) || _mesa_is_type_integer(type);
413 }
414
415
416 GLboolean
_mesa_is_type_unsigned(GLenum type)417 _mesa_is_type_unsigned(GLenum type)
418 {
419 switch (type) {
420 case GL_UNSIGNED_INT:
421 case GL_UNSIGNED_INT_8_8_8_8:
422 case GL_UNSIGNED_INT_8_8_8_8_REV:
423 case GL_UNSIGNED_INT_10_10_10_2:
424 case GL_UNSIGNED_INT_2_10_10_10_REV:
425
426 case GL_UNSIGNED_SHORT:
427 case GL_UNSIGNED_SHORT_4_4_4_4:
428 case GL_UNSIGNED_SHORT_5_5_5_1:
429 case GL_UNSIGNED_SHORT_5_6_5:
430 case GL_UNSIGNED_SHORT_5_6_5_REV:
431 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
432 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
433 case GL_UNSIGNED_SHORT_8_8_MESA:
434 case GL_UNSIGNED_SHORT_8_8_REV_MESA:
435
436 case GL_UNSIGNED_BYTE:
437 case GL_UNSIGNED_BYTE_3_3_2:
438 case GL_UNSIGNED_BYTE_2_3_3_REV:
439 return GL_TRUE;
440
441 default:
442 return GL_FALSE;
443 }
444 }
445
446
447 /**
448 * Test if the given image format is a color/RGBA format (i.e., not color
449 * index, depth, stencil, etc).
450 * \param format the image format value (may by an internal texture format)
451 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
452 */
453 GLboolean
_mesa_is_color_format(GLenum format)454 _mesa_is_color_format(GLenum format)
455 {
456 switch (format) {
457 case GL_RED:
458 case GL_GREEN:
459 case GL_BLUE:
460 case GL_ALPHA:
461 case GL_ALPHA4:
462 case GL_ALPHA8:
463 case GL_ALPHA12:
464 case GL_ALPHA16:
465 case 1:
466 case GL_LUMINANCE:
467 case GL_LUMINANCE4:
468 case GL_LUMINANCE8:
469 case GL_LUMINANCE12:
470 case GL_LUMINANCE16:
471 case 2:
472 case GL_LUMINANCE_ALPHA:
473 case GL_LUMINANCE4_ALPHA4:
474 case GL_LUMINANCE6_ALPHA2:
475 case GL_LUMINANCE8_ALPHA8:
476 case GL_LUMINANCE12_ALPHA4:
477 case GL_LUMINANCE12_ALPHA12:
478 case GL_LUMINANCE16_ALPHA16:
479 case GL_INTENSITY:
480 case GL_INTENSITY4:
481 case GL_INTENSITY8:
482 case GL_INTENSITY12:
483 case GL_INTENSITY16:
484 case GL_R8:
485 case GL_R16:
486 case GL_RG:
487 case GL_RG8:
488 case GL_RG16:
489 case 3:
490 case GL_RGB:
491 case GL_BGR:
492 case GL_R3_G3_B2:
493 case GL_RGB4:
494 case GL_RGB5:
495 case GL_RGB565:
496 case GL_RGB8:
497 case GL_RGB10:
498 case GL_RGB12:
499 case GL_RGB16:
500 case 4:
501 case GL_ABGR_EXT:
502 case GL_RGBA:
503 case GL_BGRA:
504 case GL_RGBA2:
505 case GL_RGBA4:
506 case GL_RGB5_A1:
507 case GL_RGBA8:
508 case GL_RGB10_A2:
509 case GL_RGBA12:
510 case GL_RGBA16:
511 /* float texture formats */
512 case GL_ALPHA16F_ARB:
513 case GL_ALPHA32F_ARB:
514 case GL_LUMINANCE16F_ARB:
515 case GL_LUMINANCE32F_ARB:
516 case GL_LUMINANCE_ALPHA16F_ARB:
517 case GL_LUMINANCE_ALPHA32F_ARB:
518 case GL_INTENSITY16F_ARB:
519 case GL_INTENSITY32F_ARB:
520 case GL_R16F:
521 case GL_R32F:
522 case GL_RG16F:
523 case GL_RG32F:
524 case GL_RGB16F_ARB:
525 case GL_RGB32F_ARB:
526 case GL_RGBA16F_ARB:
527 case GL_RGBA32F_ARB:
528 /* compressed formats */
529 case GL_COMPRESSED_ALPHA:
530 case GL_COMPRESSED_LUMINANCE:
531 case GL_COMPRESSED_LUMINANCE_ALPHA:
532 case GL_COMPRESSED_INTENSITY:
533 case GL_COMPRESSED_RED:
534 case GL_COMPRESSED_RG:
535 case GL_COMPRESSED_RGB:
536 case GL_COMPRESSED_RGBA:
537 case GL_RGB_S3TC:
538 case GL_RGB4_S3TC:
539 case GL_RGBA_S3TC:
540 case GL_RGBA4_S3TC:
541 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
542 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
543 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
544 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
545 case GL_COMPRESSED_RGB_FXT1_3DFX:
546 case GL_COMPRESSED_RGBA_FXT1_3DFX:
547 #if FEATURE_EXT_texture_sRGB
548 case GL_SRGB_EXT:
549 case GL_SRGB8_EXT:
550 case GL_SRGB_ALPHA_EXT:
551 case GL_SRGB8_ALPHA8_EXT:
552 case GL_SLUMINANCE_ALPHA_EXT:
553 case GL_SLUMINANCE8_ALPHA8_EXT:
554 case GL_SLUMINANCE_EXT:
555 case GL_SLUMINANCE8_EXT:
556 case GL_COMPRESSED_SRGB_EXT:
557 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
558 case GL_COMPRESSED_SRGB_ALPHA_EXT:
559 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
560 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
561 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
562 case GL_COMPRESSED_SLUMINANCE_EXT:
563 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT:
564 #endif /* FEATURE_EXT_texture_sRGB */
565 case GL_COMPRESSED_RED_RGTC1:
566 case GL_COMPRESSED_SIGNED_RED_RGTC1:
567 case GL_COMPRESSED_RG_RGTC2:
568 case GL_COMPRESSED_SIGNED_RG_RGTC2:
569 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
570 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
571 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
572 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
573 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
574 case GL_ETC1_RGB8_OES:
575 /* generic integer formats */
576 case GL_RED_INTEGER_EXT:
577 case GL_GREEN_INTEGER_EXT:
578 case GL_BLUE_INTEGER_EXT:
579 case GL_ALPHA_INTEGER_EXT:
580 case GL_RGB_INTEGER_EXT:
581 case GL_RGBA_INTEGER_EXT:
582 case GL_BGR_INTEGER_EXT:
583 case GL_BGRA_INTEGER_EXT:
584 case GL_RG_INTEGER:
585 case GL_LUMINANCE_INTEGER_EXT:
586 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
587 /* sized integer formats */
588 case GL_RGBA32UI_EXT:
589 case GL_RGB32UI_EXT:
590 case GL_RG32UI:
591 case GL_R32UI:
592 case GL_ALPHA32UI_EXT:
593 case GL_INTENSITY32UI_EXT:
594 case GL_LUMINANCE32UI_EXT:
595 case GL_LUMINANCE_ALPHA32UI_EXT:
596 case GL_RGBA16UI_EXT:
597 case GL_RGB16UI_EXT:
598 case GL_RG16UI:
599 case GL_R16UI:
600 case GL_ALPHA16UI_EXT:
601 case GL_INTENSITY16UI_EXT:
602 case GL_LUMINANCE16UI_EXT:
603 case GL_LUMINANCE_ALPHA16UI_EXT:
604 case GL_RGBA8UI_EXT:
605 case GL_RGB8UI_EXT:
606 case GL_RG8UI:
607 case GL_R8UI:
608 case GL_ALPHA8UI_EXT:
609 case GL_INTENSITY8UI_EXT:
610 case GL_LUMINANCE8UI_EXT:
611 case GL_LUMINANCE_ALPHA8UI_EXT:
612 case GL_RGBA32I_EXT:
613 case GL_RGB32I_EXT:
614 case GL_RG32I:
615 case GL_R32I:
616 case GL_ALPHA32I_EXT:
617 case GL_INTENSITY32I_EXT:
618 case GL_LUMINANCE32I_EXT:
619 case GL_LUMINANCE_ALPHA32I_EXT:
620 case GL_RGBA16I_EXT:
621 case GL_RGB16I_EXT:
622 case GL_RG16I:
623 case GL_R16I:
624 case GL_ALPHA16I_EXT:
625 case GL_INTENSITY16I_EXT:
626 case GL_LUMINANCE16I_EXT:
627 case GL_LUMINANCE_ALPHA16I_EXT:
628 case GL_RGBA8I_EXT:
629 case GL_RGB8I_EXT:
630 case GL_RG8I:
631 case GL_R8I:
632 case GL_ALPHA8I_EXT:
633 case GL_INTENSITY8I_EXT:
634 case GL_LUMINANCE8I_EXT:
635 case GL_LUMINANCE_ALPHA8I_EXT:
636 /* signed, normalized texture formats */
637 case GL_RED_SNORM:
638 case GL_R8_SNORM:
639 case GL_R16_SNORM:
640 case GL_RG_SNORM:
641 case GL_RG8_SNORM:
642 case GL_RG16_SNORM:
643 case GL_RGB_SNORM:
644 case GL_RGB8_SNORM:
645 case GL_RGB16_SNORM:
646 case GL_RGBA_SNORM:
647 case GL_RGBA8_SNORM:
648 case GL_RGBA16_SNORM:
649 case GL_ALPHA_SNORM:
650 case GL_ALPHA8_SNORM:
651 case GL_ALPHA16_SNORM:
652 case GL_LUMINANCE_SNORM:
653 case GL_LUMINANCE8_SNORM:
654 case GL_LUMINANCE16_SNORM:
655 case GL_LUMINANCE_ALPHA_SNORM:
656 case GL_LUMINANCE8_ALPHA8_SNORM:
657 case GL_LUMINANCE16_ALPHA16_SNORM:
658 case GL_INTENSITY_SNORM:
659 case GL_INTENSITY8_SNORM:
660 case GL_INTENSITY16_SNORM:
661 case GL_RGB9_E5:
662 case GL_R11F_G11F_B10F:
663 case GL_RGB10_A2UI:
664 return GL_TRUE;
665 case GL_YCBCR_MESA: /* not considered to be RGB */
666 /* fall-through */
667 default:
668 return GL_FALSE;
669 }
670 }
671
672
673 /**
674 * Test if the given image format is a depth component format.
675 */
676 GLboolean
_mesa_is_depth_format(GLenum format)677 _mesa_is_depth_format(GLenum format)
678 {
679 switch (format) {
680 case GL_DEPTH_COMPONENT:
681 case GL_DEPTH_COMPONENT16:
682 case GL_DEPTH_COMPONENT24:
683 case GL_DEPTH_COMPONENT32:
684 case GL_DEPTH_COMPONENT32F:
685 return GL_TRUE;
686 default:
687 return GL_FALSE;
688 }
689 }
690
691
692 /**
693 * Test if the given image format is a stencil format.
694 */
695 GLboolean
_mesa_is_stencil_format(GLenum format)696 _mesa_is_stencil_format(GLenum format)
697 {
698 switch (format) {
699 case GL_STENCIL_INDEX:
700 return GL_TRUE;
701 default:
702 return GL_FALSE;
703 }
704 }
705
706
707 /**
708 * Test if the given image format is a YCbCr format.
709 */
710 GLboolean
_mesa_is_ycbcr_format(GLenum format)711 _mesa_is_ycbcr_format(GLenum format)
712 {
713 switch (format) {
714 case GL_YCBCR_MESA:
715 return GL_TRUE;
716 default:
717 return GL_FALSE;
718 }
719 }
720
721
722 /**
723 * Test if the given image format is a depth+stencil format.
724 */
725 GLboolean
_mesa_is_depthstencil_format(GLenum format)726 _mesa_is_depthstencil_format(GLenum format)
727 {
728 switch (format) {
729 case GL_DEPTH24_STENCIL8_EXT:
730 case GL_DEPTH_STENCIL_EXT:
731 case GL_DEPTH32F_STENCIL8:
732 return GL_TRUE;
733 default:
734 return GL_FALSE;
735 }
736 }
737
738
739 /**
740 * Test if the given image format is a depth or stencil format.
741 */
742 GLboolean
_mesa_is_depth_or_stencil_format(GLenum format)743 _mesa_is_depth_or_stencil_format(GLenum format)
744 {
745 switch (format) {
746 case GL_DEPTH_COMPONENT:
747 case GL_DEPTH_COMPONENT16:
748 case GL_DEPTH_COMPONENT24:
749 case GL_DEPTH_COMPONENT32:
750 case GL_STENCIL_INDEX:
751 case GL_STENCIL_INDEX1_EXT:
752 case GL_STENCIL_INDEX4_EXT:
753 case GL_STENCIL_INDEX8_EXT:
754 case GL_STENCIL_INDEX16_EXT:
755 case GL_DEPTH_STENCIL_EXT:
756 case GL_DEPTH24_STENCIL8_EXT:
757 case GL_DEPTH_COMPONENT32F:
758 case GL_DEPTH32F_STENCIL8:
759 return GL_TRUE;
760 default:
761 return GL_FALSE;
762 }
763 }
764
765
766 /**
767 * Test if the given image format is a dudv format.
768 */
769 GLboolean
_mesa_is_dudv_format(GLenum format)770 _mesa_is_dudv_format(GLenum format)
771 {
772 switch (format) {
773 case GL_DUDV_ATI:
774 case GL_DU8DV8_ATI:
775 return GL_TRUE;
776 default:
777 return GL_FALSE;
778 }
779 }
780
781
782 /**
783 * Test if an image format is a supported compressed format.
784 * \param format the internal format token provided by the user.
785 * \return GL_TRUE if compressed, GL_FALSE if uncompressed
786 */
787 GLboolean
_mesa_is_compressed_format(struct gl_context * ctx,GLenum format)788 _mesa_is_compressed_format(struct gl_context *ctx, GLenum format)
789 {
790 switch (format) {
791 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT:
792 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT:
793 return ctx->Extensions.EXT_texture_compression_s3tc;
794 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT:
795 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT:
796 return _mesa_is_desktop_gl(ctx)
797 && ctx->Extensions.EXT_texture_compression_s3tc;
798 case GL_RGB_S3TC:
799 case GL_RGB4_S3TC:
800 case GL_RGBA_S3TC:
801 case GL_RGBA4_S3TC:
802 return _mesa_is_desktop_gl(ctx) && ctx->Extensions.S3_s3tc;
803 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT:
804 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT:
805 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT:
806 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT:
807 return _mesa_is_desktop_gl(ctx)
808 && ctx->Extensions.EXT_texture_sRGB
809 && ctx->Extensions.EXT_texture_compression_s3tc;
810 case GL_COMPRESSED_RGB_FXT1_3DFX:
811 case GL_COMPRESSED_RGBA_FXT1_3DFX:
812 return _mesa_is_desktop_gl(ctx)
813 && ctx->Extensions.TDFX_texture_compression_FXT1;
814 case GL_COMPRESSED_RED_RGTC1:
815 case GL_COMPRESSED_SIGNED_RED_RGTC1:
816 case GL_COMPRESSED_RG_RGTC2:
817 case GL_COMPRESSED_SIGNED_RG_RGTC2:
818 return _mesa_is_desktop_gl(ctx)
819 && ctx->Extensions.ARB_texture_compression_rgtc;
820 case GL_COMPRESSED_LUMINANCE_LATC1_EXT:
821 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT:
822 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT:
823 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT:
824 return ctx->API == API_OPENGL
825 && ctx->Extensions.EXT_texture_compression_latc;
826 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI:
827 return ctx->API == API_OPENGL
828 && ctx->Extensions.ATI_texture_compression_3dc;
829 case GL_ETC1_RGB8_OES:
830 return _mesa_is_gles(ctx)
831 && ctx->Extensions.OES_compressed_ETC1_RGB8_texture;
832 #if FEATURE_ES
833 case GL_PALETTE4_RGB8_OES:
834 case GL_PALETTE4_RGBA8_OES:
835 case GL_PALETTE4_R5_G6_B5_OES:
836 case GL_PALETTE4_RGBA4_OES:
837 case GL_PALETTE4_RGB5_A1_OES:
838 case GL_PALETTE8_RGB8_OES:
839 case GL_PALETTE8_RGBA8_OES:
840 case GL_PALETTE8_R5_G6_B5_OES:
841 case GL_PALETTE8_RGBA4_OES:
842 case GL_PALETTE8_RGB5_A1_OES:
843 return ctx->API == API_OPENGLES;
844 #endif
845 default:
846 return GL_FALSE;
847 }
848 }
849
850
851 /**
852 * Convert various base formats to the cooresponding integer format.
853 */
854 GLenum
_mesa_base_format_to_integer_format(GLenum format)855 _mesa_base_format_to_integer_format(GLenum format)
856 {
857 switch(format) {
858 case GL_RED:
859 return GL_RED_INTEGER;
860 case GL_GREEN:
861 return GL_GREEN_INTEGER;
862 case GL_BLUE:
863 return GL_BLUE_INTEGER;
864 case GL_RG:
865 return GL_RG_INTEGER;
866 case GL_RGB:
867 return GL_RGB_INTEGER;
868 case GL_RGBA:
869 return GL_RGBA_INTEGER;
870 case GL_BGR:
871 return GL_BGR_INTEGER;
872 case GL_BGRA:
873 return GL_BGRA_INTEGER;
874 case GL_ALPHA:
875 return GL_ALPHA_INTEGER;
876 case GL_LUMINANCE:
877 return GL_LUMINANCE_INTEGER_EXT;
878 case GL_LUMINANCE_ALPHA:
879 return GL_LUMINANCE_ALPHA_INTEGER_EXT;
880 }
881
882 return format;
883 }
884
885
886 /**
887 * Does the given base texture/renderbuffer format have the channel
888 * named by 'pname'?
889 */
890 GLboolean
_mesa_base_format_has_channel(GLenum base_format,GLenum pname)891 _mesa_base_format_has_channel(GLenum base_format, GLenum pname)
892 {
893 switch (pname) {
894 case GL_TEXTURE_RED_SIZE:
895 case GL_TEXTURE_RED_TYPE:
896 case GL_RENDERBUFFER_RED_SIZE_EXT:
897 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
898 if (base_format == GL_RED ||
899 base_format == GL_RG ||
900 base_format == GL_RGB ||
901 base_format == GL_RGBA) {
902 return GL_TRUE;
903 }
904 return GL_FALSE;
905 case GL_TEXTURE_GREEN_SIZE:
906 case GL_TEXTURE_GREEN_TYPE:
907 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
908 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
909 if (base_format == GL_RG ||
910 base_format == GL_RGB ||
911 base_format == GL_RGBA) {
912 return GL_TRUE;
913 }
914 return GL_FALSE;
915 case GL_TEXTURE_BLUE_SIZE:
916 case GL_TEXTURE_BLUE_TYPE:
917 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
918 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
919 if (base_format == GL_RGB ||
920 base_format == GL_RGBA) {
921 return GL_TRUE;
922 }
923 return GL_FALSE;
924 case GL_TEXTURE_ALPHA_SIZE:
925 case GL_TEXTURE_ALPHA_TYPE:
926 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
927 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
928 if (base_format == GL_RGBA ||
929 base_format == GL_ALPHA ||
930 base_format == GL_LUMINANCE_ALPHA) {
931 return GL_TRUE;
932 }
933 return GL_FALSE;
934 case GL_TEXTURE_LUMINANCE_SIZE:
935 case GL_TEXTURE_LUMINANCE_TYPE:
936 if (base_format == GL_LUMINANCE ||
937 base_format == GL_LUMINANCE_ALPHA) {
938 return GL_TRUE;
939 }
940 return GL_FALSE;
941 case GL_TEXTURE_INTENSITY_SIZE:
942 case GL_TEXTURE_INTENSITY_TYPE:
943 if (base_format == GL_INTENSITY) {
944 return GL_TRUE;
945 }
946 return GL_FALSE;
947 case GL_TEXTURE_DEPTH_SIZE:
948 case GL_TEXTURE_DEPTH_TYPE:
949 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
950 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
951 if (base_format == GL_DEPTH_STENCIL ||
952 base_format == GL_DEPTH_COMPONENT) {
953 return GL_TRUE;
954 }
955 return GL_FALSE;
956 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
957 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
958 if (base_format == GL_DEPTH_STENCIL ||
959 base_format == GL_STENCIL_INDEX) {
960 return GL_TRUE;
961 }
962 return GL_FALSE;
963 default:
964 _mesa_warning(NULL, "%s: Unexpected channel token 0x%x\n",
965 __FUNCTION__, pname);
966 return GL_FALSE;
967 }
968
969 return GL_FALSE;
970 }
971
972
973 /**
974 * If format is a generic compressed format, return the corresponding
975 * non-compressed format. For other formats, return the format as-is.
976 */
977 GLenum
_mesa_generic_compressed_format_to_uncompressed_format(GLenum format)978 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format)
979 {
980 switch (format) {
981 case GL_COMPRESSED_RED:
982 return GL_RED;
983 case GL_COMPRESSED_RG:
984 return GL_RG;
985 case GL_COMPRESSED_RGB:
986 return GL_RGB;
987 case GL_COMPRESSED_RGBA:
988 return GL_RGBA;
989 case GL_COMPRESSED_ALPHA:
990 return GL_ALPHA;
991 case GL_COMPRESSED_LUMINANCE:
992 return GL_LUMINANCE;
993 case GL_COMPRESSED_LUMINANCE_ALPHA:
994 return GL_LUMINANCE_ALPHA;
995 case GL_COMPRESSED_INTENSITY:
996 return GL_INTENSITY;
997 /* sRGB formats */
998 case GL_COMPRESSED_SRGB:
999 return GL_SRGB;
1000 case GL_COMPRESSED_SRGB_ALPHA:
1001 return GL_SRGB_ALPHA;
1002 case GL_COMPRESSED_SLUMINANCE:
1003 return GL_SLUMINANCE;
1004 case GL_COMPRESSED_SLUMINANCE_ALPHA:
1005 return GL_SLUMINANCE_ALPHA;
1006 default:
1007 return format;
1008 }
1009 }
1010
1011
1012 /**
1013 * Do error checking of format/type combinations for glReadPixels,
1014 * glDrawPixels and glTex[Sub]Image. Note that depending on the format
1015 * and type values, we may either generate GL_INVALID_OPERATION or
1016 * GL_INVALID_ENUM.
1017 *
1018 * \param format pixel format.
1019 * \param type pixel type.
1020 *
1021 * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
1022 */
1023 GLenum
_mesa_error_check_format_and_type(const struct gl_context * ctx,GLenum format,GLenum type)1024 _mesa_error_check_format_and_type(const struct gl_context *ctx,
1025 GLenum format, GLenum type)
1026 {
1027 /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
1028 switch (type) {
1029 case GL_BITMAP:
1030 if (format != GL_COLOR_INDEX && format != GL_STENCIL_INDEX) {
1031 return GL_INVALID_ENUM;
1032 }
1033 break;
1034
1035 case GL_UNSIGNED_BYTE_3_3_2:
1036 case GL_UNSIGNED_BYTE_2_3_3_REV:
1037 case GL_UNSIGNED_SHORT_5_6_5:
1038 case GL_UNSIGNED_SHORT_5_6_5_REV:
1039 if (format == GL_RGB) {
1040 break; /* OK */
1041 }
1042 if (format == GL_RGB_INTEGER_EXT &&
1043 ctx->Extensions.ARB_texture_rgb10_a2ui) {
1044 break; /* OK */
1045 }
1046 return GL_INVALID_OPERATION;
1047
1048 case GL_UNSIGNED_SHORT_4_4_4_4:
1049 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1050 case GL_UNSIGNED_SHORT_5_5_5_1:
1051 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1052 case GL_UNSIGNED_INT_8_8_8_8:
1053 case GL_UNSIGNED_INT_8_8_8_8_REV:
1054 case GL_UNSIGNED_INT_10_10_10_2:
1055 case GL_UNSIGNED_INT_2_10_10_10_REV:
1056 if (format == GL_RGBA ||
1057 format == GL_BGRA ||
1058 format == GL_ABGR_EXT) {
1059 break; /* OK */
1060 }
1061 if ((format == GL_RGBA_INTEGER_EXT || format == GL_BGRA_INTEGER_EXT) &&
1062 ctx->Extensions.ARB_texture_rgb10_a2ui) {
1063 break; /* OK */
1064 }
1065 return GL_INVALID_OPERATION;
1066
1067 case GL_UNSIGNED_INT_24_8:
1068 if (!ctx->Extensions.EXT_packed_depth_stencil) {
1069 return GL_INVALID_ENUM;
1070 }
1071 if (format != GL_DEPTH_STENCIL) {
1072 return GL_INVALID_OPERATION;
1073 }
1074 return GL_NO_ERROR;
1075
1076 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV:
1077 if (!ctx->Extensions.ARB_depth_buffer_float) {
1078 return GL_INVALID_ENUM;
1079 }
1080 if (format != GL_DEPTH_STENCIL) {
1081 return GL_INVALID_OPERATION;
1082 }
1083 return GL_NO_ERROR;
1084
1085 case GL_UNSIGNED_INT_10F_11F_11F_REV:
1086 if (!ctx->Extensions.EXT_packed_float) {
1087 return GL_INVALID_ENUM;
1088 }
1089 if (format != GL_RGB) {
1090 return GL_INVALID_OPERATION;
1091 }
1092 return GL_NO_ERROR;
1093
1094 default:
1095 ; /* fall-through */
1096 }
1097
1098 /* now, for each format, check the type for compatibility */
1099 switch (format) {
1100 case GL_COLOR_INDEX:
1101 case GL_STENCIL_INDEX:
1102 switch (type) {
1103 case GL_BITMAP:
1104 case GL_BYTE:
1105 case GL_UNSIGNED_BYTE:
1106 case GL_SHORT:
1107 case GL_UNSIGNED_SHORT:
1108 case GL_INT:
1109 case GL_UNSIGNED_INT:
1110 case GL_FLOAT:
1111 return GL_NO_ERROR;
1112 case GL_HALF_FLOAT:
1113 return ctx->Extensions.ARB_half_float_pixel
1114 ? GL_NO_ERROR : GL_INVALID_ENUM;
1115 default:
1116 return GL_INVALID_ENUM;
1117 }
1118
1119 case GL_RED:
1120 case GL_GREEN:
1121 case GL_BLUE:
1122 case GL_ALPHA:
1123 #if 0 /* not legal! see table 3.6 of the 1.5 spec */
1124 case GL_INTENSITY:
1125 #endif
1126 case GL_LUMINANCE:
1127 case GL_LUMINANCE_ALPHA:
1128 case GL_DEPTH_COMPONENT:
1129 switch (type) {
1130 case GL_BYTE:
1131 case GL_UNSIGNED_BYTE:
1132 case GL_SHORT:
1133 case GL_UNSIGNED_SHORT:
1134 case GL_INT:
1135 case GL_UNSIGNED_INT:
1136 case GL_FLOAT:
1137 return GL_NO_ERROR;
1138 case GL_HALF_FLOAT:
1139 return ctx->Extensions.ARB_half_float_pixel
1140 ? GL_NO_ERROR : GL_INVALID_ENUM;
1141 default:
1142 return GL_INVALID_ENUM;
1143 }
1144
1145 case GL_RG:
1146 if (!ctx->Extensions.ARB_texture_rg)
1147 return GL_INVALID_ENUM;
1148 switch (type) {
1149 case GL_BYTE:
1150 case GL_UNSIGNED_BYTE:
1151 case GL_SHORT:
1152 case GL_UNSIGNED_SHORT:
1153 case GL_INT:
1154 case GL_UNSIGNED_INT:
1155 case GL_FLOAT:
1156 return GL_NO_ERROR;
1157 case GL_HALF_FLOAT:
1158 return ctx->Extensions.ARB_half_float_pixel
1159 ? GL_NO_ERROR : GL_INVALID_ENUM;
1160 default:
1161 return GL_INVALID_ENUM;
1162 }
1163
1164 case GL_RGB:
1165 switch (type) {
1166 case GL_BYTE:
1167 case GL_UNSIGNED_BYTE:
1168 case GL_SHORT:
1169 case GL_UNSIGNED_SHORT:
1170 case GL_INT:
1171 case GL_UNSIGNED_INT:
1172 case GL_FLOAT:
1173 case GL_UNSIGNED_BYTE_3_3_2:
1174 case GL_UNSIGNED_BYTE_2_3_3_REV:
1175 case GL_UNSIGNED_SHORT_5_6_5:
1176 case GL_UNSIGNED_SHORT_5_6_5_REV:
1177 return GL_NO_ERROR;
1178 case GL_HALF_FLOAT:
1179 return ctx->Extensions.ARB_half_float_pixel
1180 ? GL_NO_ERROR : GL_INVALID_ENUM;
1181 case GL_UNSIGNED_INT_5_9_9_9_REV:
1182 return ctx->Extensions.EXT_texture_shared_exponent
1183 ? GL_NO_ERROR : GL_INVALID_ENUM;
1184 case GL_UNSIGNED_INT_10F_11F_11F_REV:
1185 return ctx->Extensions.EXT_packed_float
1186 ? GL_NO_ERROR : GL_INVALID_ENUM;
1187 default:
1188 return GL_INVALID_ENUM;
1189 }
1190
1191 case GL_BGR:
1192 switch (type) {
1193 /* NOTE: no packed types are supported with BGR. That's
1194 * intentional, according to the GL spec.
1195 */
1196 case GL_BYTE:
1197 case GL_UNSIGNED_BYTE:
1198 case GL_SHORT:
1199 case GL_UNSIGNED_SHORT:
1200 case GL_INT:
1201 case GL_UNSIGNED_INT:
1202 case GL_FLOAT:
1203 return GL_NO_ERROR;
1204 case GL_HALF_FLOAT:
1205 return ctx->Extensions.ARB_half_float_pixel
1206 ? GL_NO_ERROR : GL_INVALID_ENUM;
1207 default:
1208 return GL_INVALID_ENUM;
1209 }
1210
1211 case GL_RGBA:
1212 case GL_BGRA:
1213 case GL_ABGR_EXT:
1214 switch (type) {
1215 case GL_BYTE:
1216 case GL_UNSIGNED_BYTE:
1217 case GL_SHORT:
1218 case GL_UNSIGNED_SHORT:
1219 case GL_INT:
1220 case GL_UNSIGNED_INT:
1221 case GL_FLOAT:
1222 case GL_UNSIGNED_SHORT_4_4_4_4:
1223 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1224 case GL_UNSIGNED_SHORT_5_5_5_1:
1225 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1226 case GL_UNSIGNED_INT_8_8_8_8:
1227 case GL_UNSIGNED_INT_8_8_8_8_REV:
1228 case GL_UNSIGNED_INT_10_10_10_2:
1229 case GL_UNSIGNED_INT_2_10_10_10_REV:
1230 return GL_NO_ERROR;
1231 case GL_HALF_FLOAT:
1232 return ctx->Extensions.ARB_half_float_pixel
1233 ? GL_NO_ERROR : GL_INVALID_ENUM;
1234 default:
1235 return GL_INVALID_ENUM;
1236 }
1237
1238 case GL_YCBCR_MESA:
1239 if (!ctx->Extensions.MESA_ycbcr_texture)
1240 return GL_INVALID_ENUM;
1241 if (type == GL_UNSIGNED_SHORT_8_8_MESA ||
1242 type == GL_UNSIGNED_SHORT_8_8_REV_MESA)
1243 return GL_NO_ERROR;
1244 else
1245 return GL_INVALID_OPERATION;
1246
1247 case GL_DEPTH_STENCIL_EXT:
1248 if (ctx->Extensions.EXT_packed_depth_stencil &&
1249 type == GL_UNSIGNED_INT_24_8)
1250 return GL_NO_ERROR;
1251 else if (ctx->Extensions.ARB_depth_buffer_float &&
1252 type == GL_FLOAT_32_UNSIGNED_INT_24_8_REV)
1253 return GL_NO_ERROR;
1254 else
1255 return GL_INVALID_ENUM;
1256
1257 case GL_DUDV_ATI:
1258 case GL_DU8DV8_ATI:
1259 if (!ctx->Extensions.ATI_envmap_bumpmap)
1260 return GL_INVALID_ENUM;
1261 switch (type) {
1262 case GL_BYTE:
1263 case GL_UNSIGNED_BYTE:
1264 case GL_SHORT:
1265 case GL_UNSIGNED_SHORT:
1266 case GL_INT:
1267 case GL_UNSIGNED_INT:
1268 case GL_FLOAT:
1269 return GL_NO_ERROR;
1270 default:
1271 return GL_INVALID_ENUM;
1272 }
1273
1274 /* integer-valued formats */
1275 case GL_RED_INTEGER_EXT:
1276 case GL_GREEN_INTEGER_EXT:
1277 case GL_BLUE_INTEGER_EXT:
1278 case GL_ALPHA_INTEGER_EXT:
1279 case GL_RG_INTEGER:
1280 switch (type) {
1281 case GL_BYTE:
1282 case GL_UNSIGNED_BYTE:
1283 case GL_SHORT:
1284 case GL_UNSIGNED_SHORT:
1285 case GL_INT:
1286 case GL_UNSIGNED_INT:
1287 return (ctx->Version >= 30 ||
1288 ctx->Extensions.EXT_texture_integer)
1289 ? GL_NO_ERROR : GL_INVALID_ENUM;
1290 default:
1291 return GL_INVALID_ENUM;
1292 }
1293
1294 case GL_RGB_INTEGER_EXT:
1295 switch (type) {
1296 case GL_BYTE:
1297 case GL_UNSIGNED_BYTE:
1298 case GL_SHORT:
1299 case GL_UNSIGNED_SHORT:
1300 case GL_INT:
1301 case GL_UNSIGNED_INT:
1302 return (ctx->Version >= 30 ||
1303 ctx->Extensions.EXT_texture_integer)
1304 ? GL_NO_ERROR : GL_INVALID_ENUM;
1305 case GL_UNSIGNED_BYTE_3_3_2:
1306 case GL_UNSIGNED_BYTE_2_3_3_REV:
1307 case GL_UNSIGNED_SHORT_5_6_5:
1308 case GL_UNSIGNED_SHORT_5_6_5_REV:
1309 return ctx->Extensions.ARB_texture_rgb10_a2ui
1310 ? GL_NO_ERROR : GL_INVALID_ENUM;
1311 default:
1312 return GL_INVALID_ENUM;
1313 }
1314
1315 case GL_BGR_INTEGER_EXT:
1316 switch (type) {
1317 case GL_BYTE:
1318 case GL_UNSIGNED_BYTE:
1319 case GL_SHORT:
1320 case GL_UNSIGNED_SHORT:
1321 case GL_INT:
1322 case GL_UNSIGNED_INT:
1323 /* NOTE: no packed formats w/ BGR format */
1324 return (ctx->Version >= 30 ||
1325 ctx->Extensions.EXT_texture_integer)
1326 ? GL_NO_ERROR : GL_INVALID_ENUM;
1327 default:
1328 return GL_INVALID_ENUM;
1329 }
1330
1331 case GL_RGBA_INTEGER_EXT:
1332 case GL_BGRA_INTEGER_EXT:
1333 switch (type) {
1334 case GL_BYTE:
1335 case GL_UNSIGNED_BYTE:
1336 case GL_SHORT:
1337 case GL_UNSIGNED_SHORT:
1338 case GL_INT:
1339 case GL_UNSIGNED_INT:
1340 return (ctx->Version >= 30 ||
1341 ctx->Extensions.EXT_texture_integer)
1342 ? GL_NO_ERROR : GL_INVALID_ENUM;
1343 case GL_UNSIGNED_SHORT_4_4_4_4:
1344 case GL_UNSIGNED_SHORT_4_4_4_4_REV:
1345 case GL_UNSIGNED_SHORT_5_5_5_1:
1346 case GL_UNSIGNED_SHORT_1_5_5_5_REV:
1347 case GL_UNSIGNED_INT_8_8_8_8:
1348 case GL_UNSIGNED_INT_8_8_8_8_REV:
1349 case GL_UNSIGNED_INT_10_10_10_2:
1350 case GL_UNSIGNED_INT_2_10_10_10_REV:
1351 return ctx->Extensions.ARB_texture_rgb10_a2ui
1352 ? GL_NO_ERROR : GL_INVALID_ENUM;
1353 default:
1354 return GL_INVALID_ENUM;
1355 }
1356
1357 case GL_LUMINANCE_INTEGER_EXT:
1358 case GL_LUMINANCE_ALPHA_INTEGER_EXT:
1359 switch (type) {
1360 case GL_BYTE:
1361 case GL_UNSIGNED_BYTE:
1362 case GL_SHORT:
1363 case GL_UNSIGNED_SHORT:
1364 case GL_INT:
1365 case GL_UNSIGNED_INT:
1366 return ctx->Extensions.EXT_texture_integer
1367 ? GL_NO_ERROR : GL_INVALID_ENUM;
1368 default:
1369 return GL_INVALID_ENUM;
1370 }
1371
1372 default:
1373 return GL_INVALID_ENUM;
1374 }
1375 return GL_NO_ERROR;
1376 }
1377