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mesa: remove assertions that do not allow compressed 2D_ARRAY textures
[mesa.git] / src / mesa / main / formats.c
1 /*
2 * Mesa 3-D graphics library
3 * Version: 7.7
4 *
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
7 *
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
14 *
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
17 *
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 */
25
26
27 #include "imports.h"
28 #include "formats.h"
29 #include "mfeatures.h"
30 #include "macros.h"
31
32
33 /**
34 * Information about texture formats.
35 */
36 struct gl_format_info
37 {
38 gl_format Name;
39
40 /** text name for debugging */
41 const char *StrName;
42
43 /**
44 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
45 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
46 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL, GL_DUDV_ATI.
47 */
48 GLenum BaseFormat;
49
50 /**
51 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
52 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
53 */
54 GLenum DataType;
55
56 GLubyte RedBits;
57 GLubyte GreenBits;
58 GLubyte BlueBits;
59 GLubyte AlphaBits;
60 GLubyte LuminanceBits;
61 GLubyte IntensityBits;
62 GLubyte IndexBits;
63 GLubyte DepthBits;
64 GLubyte StencilBits;
65
66 /**
67 * To describe compressed formats. If not compressed, Width=Height=1.
68 */
69 GLubyte BlockWidth, BlockHeight;
70 GLubyte BytesPerBlock;
71 };
72
73
74 /**
75 * Info about each format.
76 * These must be in the same order as the MESA_FORMAT_* enums so that
77 * we can do lookups without searching.
78 */
79 static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
80 {
81 {
82 MESA_FORMAT_NONE, /* Name */
83 "MESA_FORMAT_NONE", /* StrName */
84 GL_NONE, /* BaseFormat */
85 GL_NONE, /* DataType */
86 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
87 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
88 0, 0, 0 /* BlockWidth/Height,Bytes */
89 },
90 {
91 MESA_FORMAT_RGBA8888, /* Name */
92 "MESA_FORMAT_RGBA8888", /* StrName */
93 GL_RGBA, /* BaseFormat */
94 GL_UNSIGNED_NORMALIZED, /* DataType */
95 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
96 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
97 1, 1, 4 /* BlockWidth/Height,Bytes */
98 },
99 {
100 MESA_FORMAT_RGBA8888_REV, /* Name */
101 "MESA_FORMAT_RGBA8888_REV", /* StrName */
102 GL_RGBA, /* BaseFormat */
103 GL_UNSIGNED_NORMALIZED, /* DataType */
104 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
105 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
106 1, 1, 4 /* BlockWidth/Height,Bytes */
107 },
108 {
109 MESA_FORMAT_ARGB8888, /* Name */
110 "MESA_FORMAT_ARGB8888", /* StrName */
111 GL_RGBA, /* BaseFormat */
112 GL_UNSIGNED_NORMALIZED, /* DataType */
113 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
114 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
115 1, 1, 4 /* BlockWidth/Height,Bytes */
116 },
117 {
118 MESA_FORMAT_ARGB8888_REV, /* Name */
119 "MESA_FORMAT_ARGB8888_REV", /* StrName */
120 GL_RGBA, /* BaseFormat */
121 GL_UNSIGNED_NORMALIZED, /* DataType */
122 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
123 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
124 1, 1, 4 /* BlockWidth/Height,Bytes */
125 },
126 {
127 MESA_FORMAT_RGBX8888, /* Name */
128 "MESA_FORMAT_RGBX8888", /* StrName */
129 GL_RGB, /* BaseFormat */
130 GL_UNSIGNED_NORMALIZED, /* DataType */
131 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
132 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
133 1, 1, 4 /* BlockWidth/Height,Bytes */
134 },
135 {
136 MESA_FORMAT_RGBX8888_REV, /* Name */
137 "MESA_FORMAT_RGBX8888_REV", /* StrName */
138 GL_RGB, /* BaseFormat */
139 GL_UNSIGNED_NORMALIZED, /* DataType */
140 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
141 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
142 1, 1, 4 /* BlockWidth/Height,Bytes */
143 },
144 {
145 MESA_FORMAT_XRGB8888, /* Name */
146 "MESA_FORMAT_XRGB8888", /* StrName */
147 GL_RGB, /* BaseFormat */
148 GL_UNSIGNED_NORMALIZED, /* DataType */
149 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
150 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
151 1, 1, 4 /* BlockWidth/Height,Bytes */
152 },
153 {
154 MESA_FORMAT_XRGB8888_REV, /* Name */
155 "MESA_FORMAT_XRGB8888_REV", /* StrName */
156 GL_RGB, /* BaseFormat */
157 GL_UNSIGNED_NORMALIZED, /* DataType */
158 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
159 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
160 1, 1, 4 /* BlockWidth/Height,Bytes */
161 },
162 {
163 MESA_FORMAT_RGB888, /* Name */
164 "MESA_FORMAT_RGB888", /* StrName */
165 GL_RGB, /* BaseFormat */
166 GL_UNSIGNED_NORMALIZED, /* DataType */
167 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
168 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
169 1, 1, 3 /* BlockWidth/Height,Bytes */
170 },
171 {
172 MESA_FORMAT_BGR888, /* Name */
173 "MESA_FORMAT_BGR888", /* StrName */
174 GL_RGB, /* BaseFormat */
175 GL_UNSIGNED_NORMALIZED, /* DataType */
176 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
177 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
178 1, 1, 3 /* BlockWidth/Height,Bytes */
179 },
180 {
181 MESA_FORMAT_RGB565, /* Name */
182 "MESA_FORMAT_RGB565", /* StrName */
183 GL_RGB, /* BaseFormat */
184 GL_UNSIGNED_NORMALIZED, /* DataType */
185 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
186 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
187 1, 1, 2 /* BlockWidth/Height,Bytes */
188 },
189 {
190 MESA_FORMAT_RGB565_REV, /* Name */
191 "MESA_FORMAT_RGB565_REV", /* StrName */
192 GL_RGB, /* BaseFormat */
193 GL_UNSIGNED_NORMALIZED, /* DataType */
194 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
195 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
196 1, 1, 2 /* BlockWidth/Height,Bytes */
197 },
198 {
199 MESA_FORMAT_ARGB4444, /* Name */
200 "MESA_FORMAT_ARGB4444", /* StrName */
201 GL_RGBA, /* BaseFormat */
202 GL_UNSIGNED_NORMALIZED, /* DataType */
203 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
204 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
205 1, 1, 2 /* BlockWidth/Height,Bytes */
206 },
207 {
208 MESA_FORMAT_ARGB4444_REV, /* Name */
209 "MESA_FORMAT_ARGB4444_REV", /* StrName */
210 GL_RGBA, /* BaseFormat */
211 GL_UNSIGNED_NORMALIZED, /* DataType */
212 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
213 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
214 1, 1, 2 /* BlockWidth/Height,Bytes */
215 },
216 {
217 MESA_FORMAT_RGBA5551, /* Name */
218 "MESA_FORMAT_RGBA5551", /* StrName */
219 GL_RGBA, /* BaseFormat */
220 GL_UNSIGNED_NORMALIZED, /* DataType */
221 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
222 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
223 1, 1, 2 /* BlockWidth/Height,Bytes */
224 },
225 {
226 MESA_FORMAT_ARGB1555, /* Name */
227 "MESA_FORMAT_ARGB1555", /* StrName */
228 GL_RGBA, /* BaseFormat */
229 GL_UNSIGNED_NORMALIZED, /* DataType */
230 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
231 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
232 1, 1, 2 /* BlockWidth/Height,Bytes */
233 },
234 {
235 MESA_FORMAT_ARGB1555_REV, /* Name */
236 "MESA_FORMAT_ARGB1555_REV", /* StrName */
237 GL_RGBA, /* BaseFormat */
238 GL_UNSIGNED_NORMALIZED, /* DataType */
239 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
240 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
241 1, 1, 2 /* BlockWidth/Height,Bytes */
242 },
243 {
244 MESA_FORMAT_AL44, /* Name */
245 "MESA_FORMAT_AL44", /* StrName */
246 GL_LUMINANCE_ALPHA, /* BaseFormat */
247 GL_UNSIGNED_NORMALIZED, /* DataType */
248 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
249 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
250 1, 1, 1 /* BlockWidth/Height,Bytes */
251 },
252 {
253 MESA_FORMAT_AL88, /* Name */
254 "MESA_FORMAT_AL88", /* StrName */
255 GL_LUMINANCE_ALPHA, /* BaseFormat */
256 GL_UNSIGNED_NORMALIZED, /* DataType */
257 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
258 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
259 1, 1, 2 /* BlockWidth/Height,Bytes */
260 },
261 {
262 MESA_FORMAT_AL88_REV, /* Name */
263 "MESA_FORMAT_AL88_REV", /* StrName */
264 GL_LUMINANCE_ALPHA, /* BaseFormat */
265 GL_UNSIGNED_NORMALIZED, /* DataType */
266 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
267 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
268 1, 1, 2 /* BlockWidth/Height,Bytes */
269 },
270 {
271 MESA_FORMAT_AL1616, /* Name */
272 "MESA_FORMAT_AL1616", /* StrName */
273 GL_LUMINANCE_ALPHA, /* BaseFormat */
274 GL_UNSIGNED_NORMALIZED, /* DataType */
275 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
276 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
277 1, 1, 4 /* BlockWidth/Height,Bytes */
278 },
279 {
280 MESA_FORMAT_AL1616_REV, /* Name */
281 "MESA_FORMAT_AL1616_REV", /* StrName */
282 GL_LUMINANCE_ALPHA, /* BaseFormat */
283 GL_UNSIGNED_NORMALIZED, /* DataType */
284 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
285 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
286 1, 1, 4 /* BlockWidth/Height,Bytes */
287 },
288 {
289 MESA_FORMAT_RGB332, /* Name */
290 "MESA_FORMAT_RGB332", /* StrName */
291 GL_RGB, /* BaseFormat */
292 GL_UNSIGNED_NORMALIZED, /* DataType */
293 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
294 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
295 1, 1, 1 /* BlockWidth/Height,Bytes */
296 },
297 {
298 MESA_FORMAT_A8, /* Name */
299 "MESA_FORMAT_A8", /* StrName */
300 GL_ALPHA, /* BaseFormat */
301 GL_UNSIGNED_NORMALIZED, /* DataType */
302 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
303 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
304 1, 1, 1 /* BlockWidth/Height,Bytes */
305 },
306 {
307 MESA_FORMAT_A16, /* Name */
308 "MESA_FORMAT_A16", /* StrName */
309 GL_ALPHA, /* BaseFormat */
310 GL_UNSIGNED_NORMALIZED, /* DataType */
311 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
312 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
313 1, 1, 2 /* BlockWidth/Height,Bytes */
314 },
315 {
316 MESA_FORMAT_L8, /* Name */
317 "MESA_FORMAT_L8", /* StrName */
318 GL_LUMINANCE, /* BaseFormat */
319 GL_UNSIGNED_NORMALIZED, /* DataType */
320 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
321 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
322 1, 1, 1 /* BlockWidth/Height,Bytes */
323 },
324 {
325 MESA_FORMAT_L16, /* Name */
326 "MESA_FORMAT_L16", /* StrName */
327 GL_LUMINANCE, /* BaseFormat */
328 GL_UNSIGNED_NORMALIZED, /* DataType */
329 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
330 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
331 1, 1, 2 /* BlockWidth/Height,Bytes */
332 },
333 {
334 MESA_FORMAT_I8, /* Name */
335 "MESA_FORMAT_I8", /* StrName */
336 GL_INTENSITY, /* BaseFormat */
337 GL_UNSIGNED_NORMALIZED, /* DataType */
338 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
339 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
340 1, 1, 1 /* BlockWidth/Height,Bytes */
341 },
342 {
343 MESA_FORMAT_I16, /* Name */
344 "MESA_FORMAT_I16", /* StrName */
345 GL_INTENSITY, /* BaseFormat */
346 GL_UNSIGNED_NORMALIZED, /* DataType */
347 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
348 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
349 1, 1, 2 /* BlockWidth/Height,Bytes */
350 },
351 {
352 MESA_FORMAT_YCBCR, /* Name */
353 "MESA_FORMAT_YCBCR", /* StrName */
354 GL_YCBCR_MESA, /* BaseFormat */
355 GL_UNSIGNED_NORMALIZED, /* DataType */
356 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
357 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
358 1, 1, 2 /* BlockWidth/Height,Bytes */
359 },
360 {
361 MESA_FORMAT_YCBCR_REV, /* Name */
362 "MESA_FORMAT_YCBCR_REV", /* StrName */
363 GL_YCBCR_MESA, /* BaseFormat */
364 GL_UNSIGNED_NORMALIZED, /* DataType */
365 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
366 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
367 1, 1, 2 /* BlockWidth/Height,Bytes */
368 },
369 {
370 MESA_FORMAT_R8,
371 "MESA_FORMAT_R8",
372 GL_RED,
373 GL_UNSIGNED_NORMALIZED,
374 8, 0, 0, 0,
375 0, 0, 0, 0, 0,
376 1, 1, 1
377 },
378 {
379 MESA_FORMAT_GR88,
380 "MESA_FORMAT_GR88",
381 GL_RG,
382 GL_UNSIGNED_NORMALIZED,
383 8, 8, 0, 0,
384 0, 0, 0, 0, 0,
385 1, 1, 2
386 },
387 {
388 MESA_FORMAT_RG88,
389 "MESA_FORMAT_RG88",
390 GL_RG,
391 GL_UNSIGNED_NORMALIZED,
392 8, 8, 0, 0,
393 0, 0, 0, 0, 0,
394 1, 1, 2
395 },
396 {
397 MESA_FORMAT_R16,
398 "MESA_FORMAT_R16",
399 GL_RED,
400 GL_UNSIGNED_NORMALIZED,
401 16, 0, 0, 0,
402 0, 0, 0, 0, 0,
403 1, 1, 2
404 },
405 {
406 MESA_FORMAT_RG1616,
407 "MESA_FORMAT_RG1616",
408 GL_RG,
409 GL_UNSIGNED_NORMALIZED,
410 16, 16, 0, 0,
411 0, 0, 0, 0, 0,
412 1, 1, 4
413 },
414 {
415 MESA_FORMAT_RG1616_REV,
416 "MESA_FORMAT_RG1616_REV",
417 GL_RG,
418 GL_UNSIGNED_NORMALIZED,
419 16, 16, 0, 0,
420 0, 0, 0, 0, 0,
421 1, 1, 4
422 },
423 {
424 MESA_FORMAT_ARGB2101010,
425 "MESA_FORMAT_ARGB2101010",
426 GL_RGBA,
427 GL_UNSIGNED_NORMALIZED,
428 10, 10, 10, 2,
429 0, 0, 0, 0, 0,
430 1, 1, 4
431 },
432 {
433 MESA_FORMAT_Z24_S8, /* Name */
434 "MESA_FORMAT_Z24_S8", /* StrName */
435 GL_DEPTH_STENCIL, /* BaseFormat */
436 GL_UNSIGNED_NORMALIZED, /* DataType */
437 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
438 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
439 1, 1, 4 /* BlockWidth/Height,Bytes */
440 },
441 {
442 MESA_FORMAT_S8_Z24, /* Name */
443 "MESA_FORMAT_S8_Z24", /* StrName */
444 GL_DEPTH_STENCIL, /* BaseFormat */
445 GL_UNSIGNED_NORMALIZED, /* DataType */
446 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
447 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
448 1, 1, 4 /* BlockWidth/Height,Bytes */
449 },
450 {
451 MESA_FORMAT_Z16, /* Name */
452 "MESA_FORMAT_Z16", /* StrName */
453 GL_DEPTH_COMPONENT, /* BaseFormat */
454 GL_UNSIGNED_NORMALIZED, /* DataType */
455 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
456 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
457 1, 1, 2 /* BlockWidth/Height,Bytes */
458 },
459 {
460 MESA_FORMAT_X8_Z24, /* Name */
461 "MESA_FORMAT_X8_Z24", /* StrName */
462 GL_DEPTH_COMPONENT, /* BaseFormat */
463 GL_UNSIGNED_NORMALIZED, /* DataType */
464 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
465 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
466 1, 1, 4 /* BlockWidth/Height,Bytes */
467 },
468 {
469 MESA_FORMAT_Z24_X8, /* Name */
470 "MESA_FORMAT_Z24_X8", /* StrName */
471 GL_DEPTH_COMPONENT, /* BaseFormat */
472 GL_UNSIGNED_NORMALIZED, /* DataType */
473 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
474 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
475 1, 1, 4 /* BlockWidth/Height,Bytes */
476 },
477 {
478 MESA_FORMAT_Z32, /* Name */
479 "MESA_FORMAT_Z32", /* StrName */
480 GL_DEPTH_COMPONENT, /* BaseFormat */
481 GL_UNSIGNED_NORMALIZED, /* DataType */
482 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
483 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
484 1, 1, 4 /* BlockWidth/Height,Bytes */
485 },
486 {
487 MESA_FORMAT_S8, /* Name */
488 "MESA_FORMAT_S8", /* StrName */
489 GL_STENCIL_INDEX, /* BaseFormat */
490 GL_UNSIGNED_INT, /* DataType */
491 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
492 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
493 1, 1, 1 /* BlockWidth/Height,Bytes */
494 },
495 {
496 MESA_FORMAT_SRGB8,
497 "MESA_FORMAT_SRGB8",
498 GL_RGB,
499 GL_UNSIGNED_NORMALIZED,
500 8, 8, 8, 0,
501 0, 0, 0, 0, 0,
502 1, 1, 3
503 },
504 {
505 MESA_FORMAT_SRGBA8,
506 "MESA_FORMAT_SRGBA8",
507 GL_RGBA,
508 GL_UNSIGNED_NORMALIZED,
509 8, 8, 8, 8,
510 0, 0, 0, 0, 0,
511 1, 1, 4
512 },
513 {
514 MESA_FORMAT_SARGB8,
515 "MESA_FORMAT_SARGB8",
516 GL_RGBA,
517 GL_UNSIGNED_NORMALIZED,
518 8, 8, 8, 8,
519 0, 0, 0, 0, 0,
520 1, 1, 4
521 },
522 {
523 MESA_FORMAT_SL8,
524 "MESA_FORMAT_SL8",
525 GL_LUMINANCE,
526 GL_UNSIGNED_NORMALIZED,
527 0, 0, 0, 0,
528 8, 0, 0, 0, 0,
529 1, 1, 1
530 },
531 {
532 MESA_FORMAT_SLA8,
533 "MESA_FORMAT_SLA8",
534 GL_LUMINANCE_ALPHA,
535 GL_UNSIGNED_NORMALIZED,
536 0, 0, 0, 8,
537 8, 0, 0, 0, 0,
538 1, 1, 2
539 },
540 {
541 MESA_FORMAT_SRGB_DXT1, /* Name */
542 "MESA_FORMAT_SRGB_DXT1", /* StrName */
543 GL_RGB, /* BaseFormat */
544 GL_UNSIGNED_NORMALIZED, /* DataType */
545 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
546 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
547 4, 4, 8 /* 8 bytes per 4x4 block */
548 },
549 {
550 MESA_FORMAT_SRGBA_DXT1,
551 "MESA_FORMAT_SRGBA_DXT1",
552 GL_RGBA,
553 GL_UNSIGNED_NORMALIZED,
554 4, 4, 4, 4,
555 0, 0, 0, 0, 0,
556 4, 4, 8 /* 8 bytes per 4x4 block */
557 },
558 {
559 MESA_FORMAT_SRGBA_DXT3,
560 "MESA_FORMAT_SRGBA_DXT3",
561 GL_RGBA,
562 GL_UNSIGNED_NORMALIZED,
563 4, 4, 4, 4,
564 0, 0, 0, 0, 0,
565 4, 4, 16 /* 16 bytes per 4x4 block */
566 },
567 {
568 MESA_FORMAT_SRGBA_DXT5,
569 "MESA_FORMAT_SRGBA_DXT5",
570 GL_RGBA,
571 GL_UNSIGNED_NORMALIZED,
572 4, 4, 4, 4,
573 0, 0, 0, 0, 0,
574 4, 4, 16 /* 16 bytes per 4x4 block */
575 },
576
577 {
578 MESA_FORMAT_RGB_FXT1,
579 "MESA_FORMAT_RGB_FXT1",
580 GL_RGB,
581 GL_UNSIGNED_NORMALIZED,
582 4, 4, 4, 0, /* approx Red/Green/BlueBits */
583 0, 0, 0, 0, 0,
584 8, 4, 16 /* 16 bytes per 8x4 block */
585 },
586 {
587 MESA_FORMAT_RGBA_FXT1,
588 "MESA_FORMAT_RGBA_FXT1",
589 GL_RGBA,
590 GL_UNSIGNED_NORMALIZED,
591 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
592 0, 0, 0, 0, 0,
593 8, 4, 16 /* 16 bytes per 8x4 block */
594 },
595
596 {
597 MESA_FORMAT_RGB_DXT1, /* Name */
598 "MESA_FORMAT_RGB_DXT1", /* StrName */
599 GL_RGB, /* BaseFormat */
600 GL_UNSIGNED_NORMALIZED, /* DataType */
601 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
602 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
603 4, 4, 8 /* 8 bytes per 4x4 block */
604 },
605 {
606 MESA_FORMAT_RGBA_DXT1,
607 "MESA_FORMAT_RGBA_DXT1",
608 GL_RGBA,
609 GL_UNSIGNED_NORMALIZED,
610 4, 4, 4, 4,
611 0, 0, 0, 0, 0,
612 4, 4, 8 /* 8 bytes per 4x4 block */
613 },
614 {
615 MESA_FORMAT_RGBA_DXT3,
616 "MESA_FORMAT_RGBA_DXT3",
617 GL_RGBA,
618 GL_UNSIGNED_NORMALIZED,
619 4, 4, 4, 4,
620 0, 0, 0, 0, 0,
621 4, 4, 16 /* 16 bytes per 4x4 block */
622 },
623 {
624 MESA_FORMAT_RGBA_DXT5,
625 "MESA_FORMAT_RGBA_DXT5",
626 GL_RGBA,
627 GL_UNSIGNED_NORMALIZED,
628 4, 4, 4, 4,
629 0, 0, 0, 0, 0,
630 4, 4, 16 /* 16 bytes per 4x4 block */
631 },
632 {
633 MESA_FORMAT_RGBA_FLOAT32,
634 "MESA_FORMAT_RGBA_FLOAT32",
635 GL_RGBA,
636 GL_FLOAT,
637 32, 32, 32, 32,
638 0, 0, 0, 0, 0,
639 1, 1, 16
640 },
641 {
642 MESA_FORMAT_RGBA_FLOAT16,
643 "MESA_FORMAT_RGBA_FLOAT16",
644 GL_RGBA,
645 GL_FLOAT,
646 16, 16, 16, 16,
647 0, 0, 0, 0, 0,
648 1, 1, 8
649 },
650 {
651 MESA_FORMAT_RGB_FLOAT32,
652 "MESA_FORMAT_RGB_FLOAT32",
653 GL_RGB,
654 GL_FLOAT,
655 32, 32, 32, 0,
656 0, 0, 0, 0, 0,
657 1, 1, 12
658 },
659 {
660 MESA_FORMAT_RGB_FLOAT16,
661 "MESA_FORMAT_RGB_FLOAT16",
662 GL_RGB,
663 GL_FLOAT,
664 16, 16, 16, 0,
665 0, 0, 0, 0, 0,
666 1, 1, 6
667 },
668 {
669 MESA_FORMAT_ALPHA_FLOAT32,
670 "MESA_FORMAT_ALPHA_FLOAT32",
671 GL_ALPHA,
672 GL_FLOAT,
673 0, 0, 0, 32,
674 0, 0, 0, 0, 0,
675 1, 1, 4
676 },
677 {
678 MESA_FORMAT_ALPHA_FLOAT16,
679 "MESA_FORMAT_ALPHA_FLOAT16",
680 GL_ALPHA,
681 GL_FLOAT,
682 0, 0, 0, 16,
683 0, 0, 0, 0, 0,
684 1, 1, 2
685 },
686 {
687 MESA_FORMAT_LUMINANCE_FLOAT32,
688 "MESA_FORMAT_LUMINANCE_FLOAT32",
689 GL_LUMINANCE,
690 GL_FLOAT,
691 0, 0, 0, 0,
692 32, 0, 0, 0, 0,
693 1, 1, 4
694 },
695 {
696 MESA_FORMAT_LUMINANCE_FLOAT16,
697 "MESA_FORMAT_LUMINANCE_FLOAT16",
698 GL_LUMINANCE,
699 GL_FLOAT,
700 0, 0, 0, 0,
701 16, 0, 0, 0, 0,
702 1, 1, 2
703 },
704 {
705 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
706 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
707 GL_LUMINANCE_ALPHA,
708 GL_FLOAT,
709 0, 0, 0, 32,
710 32, 0, 0, 0, 0,
711 1, 1, 8
712 },
713 {
714 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
715 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
716 GL_LUMINANCE_ALPHA,
717 GL_FLOAT,
718 0, 0, 0, 16,
719 16, 0, 0, 0, 0,
720 1, 1, 4
721 },
722 {
723 MESA_FORMAT_INTENSITY_FLOAT32,
724 "MESA_FORMAT_INTENSITY_FLOAT32",
725 GL_INTENSITY,
726 GL_FLOAT,
727 0, 0, 0, 0,
728 0, 32, 0, 0, 0,
729 1, 1, 4
730 },
731 {
732 MESA_FORMAT_INTENSITY_FLOAT16,
733 "MESA_FORMAT_INTENSITY_FLOAT16",
734 GL_INTENSITY,
735 GL_FLOAT,
736 0, 0, 0, 0,
737 0, 16, 0, 0, 0,
738 1, 1, 2
739 },
740 {
741 MESA_FORMAT_R_FLOAT32,
742 "MESA_FORMAT_R_FLOAT32",
743 GL_RED,
744 GL_FLOAT,
745 32, 0, 0, 0,
746 0, 0, 0, 0, 0,
747 1, 1, 4
748 },
749 {
750 MESA_FORMAT_R_FLOAT16,
751 "MESA_FORMAT_R_FLOAT16",
752 GL_RED,
753 GL_FLOAT,
754 16, 0, 0, 0,
755 0, 0, 0, 0, 0,
756 1, 1, 2
757 },
758 {
759 MESA_FORMAT_RG_FLOAT32,
760 "MESA_FORMAT_RG_FLOAT32",
761 GL_RG,
762 GL_FLOAT,
763 32, 32, 0, 0,
764 0, 0, 0, 0, 0,
765 1, 1, 8
766 },
767 {
768 MESA_FORMAT_RG_FLOAT16,
769 "MESA_FORMAT_RG_FLOAT16",
770 GL_RG,
771 GL_FLOAT,
772 16, 16, 0, 0,
773 0, 0, 0, 0, 0,
774 1, 1, 4
775 },
776
777 /* unnormalized signed int formats */
778 /* unnormalized unsigned int formats */
779 {
780 MESA_FORMAT_ALPHA_UINT8,
781 "MESA_FORMAT_ALPHA_UINT8",
782 GL_ALPHA,
783 GL_UNSIGNED_INT,
784 0, 0, 0, 8,
785 0, 0, 0, 0, 0,
786 1, 1, 1
787 },
788 {
789 MESA_FORMAT_ALPHA_UINT16,
790 "MESA_FORMAT_ALPHA_UINT16",
791 GL_ALPHA,
792 GL_UNSIGNED_INT,
793 0, 0, 0, 16,
794 0, 0, 0, 0, 0,
795 1, 1, 2
796 },
797 {
798 MESA_FORMAT_ALPHA_UINT32,
799 "MESA_FORMAT_ALPHA_UINT32",
800 GL_ALPHA,
801 GL_UNSIGNED_INT,
802 0, 0, 0, 32,
803 0, 0, 0, 0, 0,
804 1, 1, 4
805 },
806 {
807 MESA_FORMAT_ALPHA_INT8,
808 "MESA_FORMAT_ALPHA_INT8",
809 GL_ALPHA,
810 GL_INT,
811 0, 0, 0, 8,
812 0, 0, 0, 0, 0,
813 1, 1, 1
814 },
815 {
816 MESA_FORMAT_ALPHA_INT16,
817 "MESA_FORMAT_ALPHA_INT16",
818 GL_ALPHA,
819 GL_INT,
820 0, 0, 0, 16,
821 0, 0, 0, 0, 0,
822 1, 1, 2
823 },
824 {
825 MESA_FORMAT_ALPHA_INT32,
826 "MESA_FORMAT_ALPHA_INT32",
827 GL_ALPHA,
828 GL_INT,
829 0, 0, 0, 32,
830 0, 0, 0, 0, 0,
831 1, 1, 4
832 },
833 {
834 MESA_FORMAT_INTENSITY_UINT8,
835 "MESA_FORMAT_INTENSITY_UINT8",
836 GL_INTENSITY,
837 GL_UNSIGNED_INT,
838 0, 0, 0, 0,
839 0, 8, 0, 0, 0,
840 1, 1, 1
841 },
842 {
843 MESA_FORMAT_INTENSITY_UINT16,
844 "MESA_FORMAT_INTENSITY_UINT16",
845 GL_INTENSITY,
846 GL_UNSIGNED_INT,
847 0, 0, 0, 0,
848 0, 16, 0, 0, 0,
849 1, 1, 2
850 },
851 {
852 MESA_FORMAT_INTENSITY_UINT32,
853 "MESA_FORMAT_INTENSITY_UINT32",
854 GL_INTENSITY,
855 GL_UNSIGNED_INT,
856 0, 0, 0, 0,
857 0, 32, 0, 0, 0,
858 1, 1, 4
859 },
860 {
861 MESA_FORMAT_INTENSITY_INT8,
862 "MESA_FORMAT_INTENSITY_INT8",
863 GL_INTENSITY,
864 GL_INT,
865 0, 0, 0, 0,
866 0, 8, 0, 0, 0,
867 1, 1, 1
868 },
869 {
870 MESA_FORMAT_INTENSITY_INT16,
871 "MESA_FORMAT_INTENSITY_INT16",
872 GL_INTENSITY,
873 GL_INT,
874 0, 0, 0, 0,
875 0, 16, 0, 0, 0,
876 1, 1, 2
877 },
878 {
879 MESA_FORMAT_INTENSITY_INT32,
880 "MESA_FORMAT_INTENSITY_INT32",
881 GL_INTENSITY,
882 GL_INT,
883 0, 0, 0, 0,
884 0, 32, 0, 0, 0,
885 1, 1, 4
886 },
887 {
888 MESA_FORMAT_LUMINANCE_UINT8,
889 "MESA_FORMAT_LUMINANCE_UINT8",
890 GL_LUMINANCE,
891 GL_UNSIGNED_INT,
892 0, 0, 0, 0,
893 8, 0, 0, 0, 0,
894 1, 1, 1
895 },
896 {
897 MESA_FORMAT_LUMINANCE_UINT16,
898 "MESA_FORMAT_LUMINANCE_UINT16",
899 GL_LUMINANCE,
900 GL_UNSIGNED_INT,
901 0, 0, 0, 0,
902 16, 0, 0, 0, 0,
903 1, 1, 2
904 },
905 {
906 MESA_FORMAT_LUMINANCE_UINT32,
907 "MESA_FORMAT_LUMINANCE_UINT32",
908 GL_LUMINANCE,
909 GL_UNSIGNED_INT,
910 0, 0, 0, 0,
911 32, 0, 0, 0, 0,
912 1, 1, 4
913 },
914 {
915 MESA_FORMAT_LUMINANCE_INT8,
916 "MESA_FORMAT_LUMINANCE_INT8",
917 GL_LUMINANCE,
918 GL_INT,
919 0, 0, 0, 0,
920 8, 0, 0, 0, 0,
921 1, 1, 1
922 },
923 {
924 MESA_FORMAT_LUMINANCE_INT16,
925 "MESA_FORMAT_LUMINANCE_INT16",
926 GL_LUMINANCE,
927 GL_INT,
928 0, 0, 0, 0,
929 16, 0, 0, 0, 0,
930 1, 1, 2
931 },
932 {
933 MESA_FORMAT_LUMINANCE_INT32,
934 "MESA_FORMAT_LUMINANCE_INT32",
935 GL_LUMINANCE,
936 GL_INT,
937 0, 0, 0, 0,
938 32, 0, 0, 0, 0,
939 1, 1, 4
940 },
941 {
942 MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
943 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
944 GL_LUMINANCE_ALPHA,
945 GL_UNSIGNED_INT,
946 0, 0, 0, 8,
947 8, 0, 0, 0, 0,
948 1, 1, 2
949 },
950 {
951 MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
952 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
953 GL_LUMINANCE_ALPHA,
954 GL_UNSIGNED_INT,
955 0, 0, 0, 16,
956 16, 0, 0, 0, 0,
957 1, 1, 4
958 },
959 {
960 MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
961 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
962 GL_LUMINANCE_ALPHA,
963 GL_UNSIGNED_INT,
964 0, 0, 0, 32,
965 32, 0, 0, 0, 0,
966 1, 1, 8
967 },
968 {
969 MESA_FORMAT_LUMINANCE_ALPHA_INT8,
970 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
971 GL_LUMINANCE_ALPHA,
972 GL_INT,
973 0, 0, 0, 8,
974 8, 0, 0, 0, 0,
975 1, 1, 2
976 },
977 {
978 MESA_FORMAT_LUMINANCE_ALPHA_INT16,
979 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
980 GL_LUMINANCE_ALPHA,
981 GL_INT,
982 0, 0, 0, 16,
983 16, 0, 0, 0, 0,
984 1, 1, 4
985 },
986 {
987 MESA_FORMAT_LUMINANCE_ALPHA_INT32,
988 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
989 GL_LUMINANCE_ALPHA,
990 GL_INT,
991 0, 0, 0, 32,
992 32, 0, 0, 0, 0,
993 1, 1, 8
994 },
995
996 {
997 MESA_FORMAT_R_INT8,
998 "MESA_FORMAT_R_INT8",
999 GL_RED,
1000 GL_INT,
1001 8, 0, 0, 0,
1002 0, 0, 0, 0, 0,
1003 1, 1, 1
1004 },
1005 {
1006 MESA_FORMAT_RG_INT8,
1007 "MESA_FORMAT_RG_INT8",
1008 GL_RG,
1009 GL_INT,
1010 8, 8, 0, 0,
1011 0, 0, 0, 0, 0,
1012 1, 1, 2
1013 },
1014 {
1015 MESA_FORMAT_RGB_INT8,
1016 "MESA_FORMAT_RGB_INT8",
1017 GL_RGB,
1018 GL_INT,
1019 8, 8, 8, 0,
1020 0, 0, 0, 0, 0,
1021 1, 1, 3
1022 },
1023 {
1024 MESA_FORMAT_RGBA_INT8,
1025 "MESA_FORMAT_RGBA_INT8",
1026 GL_RGBA,
1027 GL_INT,
1028 8, 8, 8, 8,
1029 0, 0, 0, 0, 0,
1030 1, 1, 4
1031 },
1032 {
1033 MESA_FORMAT_R_INT16,
1034 "MESA_FORMAT_R_INT16",
1035 GL_RED,
1036 GL_INT,
1037 16, 0, 0, 0,
1038 0, 0, 0, 0, 0,
1039 1, 1, 2
1040 },
1041 {
1042 MESA_FORMAT_RG_INT16,
1043 "MESA_FORMAT_RG_INT16",
1044 GL_RG,
1045 GL_INT,
1046 16, 16, 0, 0,
1047 0, 0, 0, 0, 0,
1048 1, 1, 4
1049 },
1050 {
1051 MESA_FORMAT_RGB_INT16,
1052 "MESA_FORMAT_RGB_INT16",
1053 GL_RGB,
1054 GL_INT,
1055 16, 16, 16, 0,
1056 0, 0, 0, 0, 0,
1057 1, 1, 6
1058 },
1059 {
1060 MESA_FORMAT_RGBA_INT16,
1061 "MESA_FORMAT_RGBA_INT16",
1062 GL_RGBA,
1063 GL_INT,
1064 16, 16, 16, 16,
1065 0, 0, 0, 0, 0,
1066 1, 1, 8
1067 },
1068 {
1069 MESA_FORMAT_R_INT32,
1070 "MESA_FORMAT_R_INT32",
1071 GL_RED,
1072 GL_INT,
1073 32, 0, 0, 0,
1074 0, 0, 0, 0, 0,
1075 1, 1, 4
1076 },
1077 {
1078 MESA_FORMAT_RG_INT32,
1079 "MESA_FORMAT_RG_INT32",
1080 GL_RG,
1081 GL_INT,
1082 32, 32, 0, 0,
1083 0, 0, 0, 0, 0,
1084 1, 1, 8
1085 },
1086 {
1087 MESA_FORMAT_RGB_INT32,
1088 "MESA_FORMAT_RGB_INT32",
1089 GL_RGB,
1090 GL_INT,
1091 32, 32, 32, 0,
1092 0, 0, 0, 0, 0,
1093 1, 1, 12
1094 },
1095 {
1096 MESA_FORMAT_RGBA_INT32,
1097 "MESA_FORMAT_RGBA_INT32",
1098 GL_RGBA,
1099 GL_INT,
1100 32, 32, 32, 32,
1101 0, 0, 0, 0, 0,
1102 1, 1, 16
1103 },
1104 {
1105 MESA_FORMAT_R_UINT8,
1106 "MESA_FORMAT_R_UINT8",
1107 GL_RED,
1108 GL_UNSIGNED_INT,
1109 8, 0, 0, 0,
1110 0, 0, 0, 0, 0,
1111 1, 1, 1
1112 },
1113 {
1114 MESA_FORMAT_RG_UINT8,
1115 "MESA_FORMAT_RG_UINT8",
1116 GL_RG,
1117 GL_UNSIGNED_INT,
1118 8, 8, 0, 0,
1119 0, 0, 0, 0, 0,
1120 1, 1, 2
1121 },
1122 {
1123 MESA_FORMAT_RGB_UINT8,
1124 "MESA_FORMAT_RGB_UINT8",
1125 GL_RGB,
1126 GL_UNSIGNED_INT,
1127 8, 8, 8, 0,
1128 0, 0, 0, 0, 0,
1129 1, 1, 3
1130 },
1131 {
1132 MESA_FORMAT_RGBA_UINT8,
1133 "MESA_FORMAT_RGBA_UINT8",
1134 GL_RGBA,
1135 GL_UNSIGNED_INT,
1136 8, 8, 8, 8,
1137 0, 0, 0, 0, 0,
1138 1, 1, 4
1139 },
1140 {
1141 MESA_FORMAT_R_UINT16,
1142 "MESA_FORMAT_R_UINT16",
1143 GL_RED,
1144 GL_UNSIGNED_INT,
1145 16, 0, 0, 0,
1146 0, 0, 0, 0, 0,
1147 1, 1, 2
1148 },
1149 {
1150 MESA_FORMAT_RG_UINT16,
1151 "MESA_FORMAT_RG_UINT16",
1152 GL_RG,
1153 GL_UNSIGNED_INT,
1154 16, 16, 0, 0,
1155 0, 0, 0, 0, 0,
1156 1, 1, 4
1157 },
1158 {
1159 MESA_FORMAT_RGB_UINT16,
1160 "MESA_FORMAT_RGB_UINT16",
1161 GL_RGB,
1162 GL_UNSIGNED_INT,
1163 16, 16, 16, 0,
1164 0, 0, 0, 0, 0,
1165 1, 1, 6
1166 },
1167 {
1168 MESA_FORMAT_RGBA_UINT16,
1169 "MESA_FORMAT_RGBA_UINT16",
1170 GL_RGBA,
1171 GL_UNSIGNED_INT,
1172 16, 16, 16, 16,
1173 0, 0, 0, 0, 0,
1174 1, 1, 8
1175 },
1176 {
1177 MESA_FORMAT_R_UINT32,
1178 "MESA_FORMAT_R_UINT32",
1179 GL_RED,
1180 GL_UNSIGNED_INT,
1181 32, 0, 0, 0,
1182 0, 0, 0, 0, 0,
1183 1, 1, 4
1184 },
1185 {
1186 MESA_FORMAT_RG_UINT32,
1187 "MESA_FORMAT_RG_UINT32",
1188 GL_RG,
1189 GL_UNSIGNED_INT,
1190 32, 32, 0, 0,
1191 0, 0, 0, 0, 0,
1192 1, 1, 8
1193 },
1194 {
1195 MESA_FORMAT_RGB_UINT32,
1196 "MESA_FORMAT_RGB_UINT32",
1197 GL_RGB,
1198 GL_UNSIGNED_INT,
1199 32, 32, 32, 0,
1200 0, 0, 0, 0, 0,
1201 1, 1, 12
1202 },
1203 {
1204 MESA_FORMAT_RGBA_UINT32,
1205 "MESA_FORMAT_RGBA_UINT32",
1206 GL_RGBA,
1207 GL_UNSIGNED_INT,
1208 32, 32, 32, 32,
1209 0, 0, 0, 0, 0,
1210 1, 1, 16
1211 },
1212
1213
1214 {
1215 MESA_FORMAT_DUDV8,
1216 "MESA_FORMAT_DUDV8",
1217 GL_DUDV_ATI,
1218 GL_SIGNED_NORMALIZED,
1219 0, 0, 0, 0,
1220 0, 0, 0, 0, 0,
1221 1, 1, 2
1222 },
1223
1224 /* Signed 8 bits / channel */
1225 {
1226 MESA_FORMAT_SIGNED_R8, /* Name */
1227 "MESA_FORMAT_SIGNED_R8", /* StrName */
1228 GL_RED, /* BaseFormat */
1229 GL_SIGNED_NORMALIZED, /* DataType */
1230 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1231 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1232 1, 1, 1 /* BlockWidth/Height,Bytes */
1233 },
1234 {
1235 MESA_FORMAT_SIGNED_RG88_REV,
1236 "MESA_FORMAT_SIGNED_RG88_REV",
1237 GL_RG,
1238 GL_SIGNED_NORMALIZED,
1239 8, 8, 0, 0,
1240 0, 0, 0, 0, 0,
1241 1, 1, 2
1242 },
1243 {
1244 MESA_FORMAT_SIGNED_RGBX8888,
1245 "MESA_FORMAT_SIGNED_RGBX8888",
1246 GL_RGB,
1247 GL_SIGNED_NORMALIZED,
1248 8, 8, 8, 0,
1249 0, 0, 0, 0, 0,
1250 1, 1, 4 /* 4 bpp, but no alpha */
1251 },
1252 {
1253 MESA_FORMAT_SIGNED_RGBA8888,
1254 "MESA_FORMAT_SIGNED_RGBA8888",
1255 GL_RGBA,
1256 GL_SIGNED_NORMALIZED,
1257 8, 8, 8, 8,
1258 0, 0, 0, 0, 0,
1259 1, 1, 4
1260 },
1261 {
1262 MESA_FORMAT_SIGNED_RGBA8888_REV,
1263 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1264 GL_RGBA,
1265 GL_SIGNED_NORMALIZED,
1266 8, 8, 8, 8,
1267 0, 0, 0, 0, 0,
1268 1, 1, 4
1269 },
1270
1271 /* Signed 16 bits / channel */
1272 {
1273 MESA_FORMAT_SIGNED_R16,
1274 "MESA_FORMAT_SIGNED_R16",
1275 GL_RED,
1276 GL_SIGNED_NORMALIZED,
1277 16, 0, 0, 0,
1278 0, 0, 0, 0, 0,
1279 1, 1, 2
1280 },
1281 {
1282 MESA_FORMAT_SIGNED_GR1616,
1283 "MESA_FORMAT_SIGNED_GR1616",
1284 GL_RG,
1285 GL_SIGNED_NORMALIZED,
1286 16, 16, 0, 0,
1287 0, 0, 0, 0, 0,
1288 1, 1, 4
1289 },
1290 {
1291 MESA_FORMAT_SIGNED_RGB_16,
1292 "MESA_FORMAT_SIGNED_RGB_16",
1293 GL_RGB,
1294 GL_SIGNED_NORMALIZED,
1295 16, 16, 16, 0,
1296 0, 0, 0, 0, 0,
1297 1, 1, 6
1298 },
1299 {
1300 MESA_FORMAT_SIGNED_RGBA_16,
1301 "MESA_FORMAT_SIGNED_RGBA_16",
1302 GL_RGBA,
1303 GL_SIGNED_NORMALIZED,
1304 16, 16, 16, 16,
1305 0, 0, 0, 0, 0,
1306 1, 1, 8
1307 },
1308 {
1309 MESA_FORMAT_RGBA_16,
1310 "MESA_FORMAT_RGBA_16",
1311 GL_RGBA,
1312 GL_UNSIGNED_NORMALIZED,
1313 16, 16, 16, 16,
1314 0, 0, 0, 0, 0,
1315 1, 1, 8
1316 },
1317 {
1318 MESA_FORMAT_RED_RGTC1,
1319 "MESA_FORMAT_RED_RGTC1",
1320 GL_RED,
1321 GL_UNSIGNED_NORMALIZED,
1322 8, 0, 0, 0,
1323 0, 0, 0, 0, 0,
1324 4, 4, 8 /* 8 bytes per 4x4 block */
1325 },
1326 {
1327 MESA_FORMAT_SIGNED_RED_RGTC1,
1328 "MESA_FORMAT_SIGNED_RED_RGTC1",
1329 GL_RED,
1330 GL_SIGNED_NORMALIZED,
1331 8, 0, 0, 0,
1332 0, 0, 0, 0, 0,
1333 4, 4, 8 /* 8 bytes per 4x4 block */
1334 },
1335 {
1336 MESA_FORMAT_RG_RGTC2,
1337 "MESA_FORMAT_RG_RGTC2",
1338 GL_RG,
1339 GL_UNSIGNED_NORMALIZED,
1340 8, 8, 0, 0,
1341 0, 0, 0, 0, 0,
1342 4, 4, 16 /* 16 bytes per 4x4 block */
1343 },
1344 {
1345 MESA_FORMAT_SIGNED_RG_RGTC2,
1346 "MESA_FORMAT_SIGNED_RG_RGTC2",
1347 GL_RG,
1348 GL_SIGNED_NORMALIZED,
1349 8, 8, 0, 0,
1350 0, 0, 0, 0, 0,
1351 4, 4, 16 /* 16 bytes per 4x4 block */
1352 },
1353 {
1354 MESA_FORMAT_L_LATC1,
1355 "MESA_FORMAT_L_LATC1",
1356 GL_LUMINANCE,
1357 GL_UNSIGNED_NORMALIZED,
1358 0, 0, 0, 0,
1359 4, 0, 0, 0, 0,
1360 4, 4, 8 /* 8 bytes per 4x4 block */
1361 },
1362 {
1363 MESA_FORMAT_SIGNED_L_LATC1,
1364 "MESA_FORMAT_SIGNED_L_LATC1",
1365 GL_LUMINANCE,
1366 GL_SIGNED_NORMALIZED,
1367 0, 0, 0, 0,
1368 4, 0, 0, 0, 0,
1369 4, 4, 8 /* 8 bytes per 4x4 block */
1370 },
1371 {
1372 MESA_FORMAT_LA_LATC2,
1373 "MESA_FORMAT_LA_LATC2",
1374 GL_LUMINANCE_ALPHA,
1375 GL_UNSIGNED_NORMALIZED,
1376 0, 0, 0, 4,
1377 4, 0, 0, 0, 0,
1378 4, 4, 16 /* 16 bytes per 4x4 block */
1379 },
1380 {
1381 MESA_FORMAT_SIGNED_LA_LATC2,
1382 "MESA_FORMAT_SIGNED_LA_LATC2",
1383 GL_LUMINANCE_ALPHA,
1384 GL_SIGNED_NORMALIZED,
1385 0, 0, 0, 4,
1386 4, 0, 0, 0, 0,
1387 4, 4, 16 /* 16 bytes per 4x4 block */
1388 },
1389
1390 {
1391 MESA_FORMAT_ETC1_RGB8,
1392 "MESA_FORMAT_ETC1_RGB8",
1393 GL_RGB,
1394 GL_UNSIGNED_NORMALIZED,
1395 8, 8, 8, 0,
1396 0, 0, 0, 0, 0,
1397 4, 4, 8 /* 8 bytes per 4x4 block */
1398 },
1399
1400 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1401 {
1402 MESA_FORMAT_SIGNED_A8,
1403 "MESA_FORMAT_SIGNED_A8",
1404 GL_ALPHA,
1405 GL_SIGNED_NORMALIZED,
1406 0, 0, 0, 8,
1407 0, 0, 0, 0, 0,
1408 1, 1, 1
1409 },
1410 {
1411 MESA_FORMAT_SIGNED_L8,
1412 "MESA_FORMAT_SIGNED_L8",
1413 GL_LUMINANCE,
1414 GL_SIGNED_NORMALIZED,
1415 0, 0, 0, 0,
1416 8, 0, 0, 0, 0,
1417 1, 1, 1
1418 },
1419 {
1420 MESA_FORMAT_SIGNED_AL88,
1421 "MESA_FORMAT_SIGNED_AL88",
1422 GL_LUMINANCE_ALPHA,
1423 GL_SIGNED_NORMALIZED,
1424 0, 0, 0, 8,
1425 8, 0, 0, 0, 0,
1426 1, 1, 2
1427 },
1428 {
1429 MESA_FORMAT_SIGNED_I8,
1430 "MESA_FORMAT_SIGNED_I8",
1431 GL_INTENSITY,
1432 GL_SIGNED_NORMALIZED,
1433 0, 0, 0, 0,
1434 0, 8, 0, 0, 0,
1435 1, 1, 1
1436 },
1437 {
1438 MESA_FORMAT_SIGNED_A16,
1439 "MESA_FORMAT_SIGNED_A16",
1440 GL_ALPHA,
1441 GL_SIGNED_NORMALIZED,
1442 0, 0, 0, 16,
1443 0, 0, 0, 0, 0,
1444 1, 1, 2
1445 },
1446 {
1447 MESA_FORMAT_SIGNED_L16,
1448 "MESA_FORMAT_SIGNED_L16",
1449 GL_LUMINANCE,
1450 GL_SIGNED_NORMALIZED,
1451 0, 0, 0, 0,
1452 16, 0, 0, 0, 0,
1453 1, 1, 2
1454 },
1455 {
1456 MESA_FORMAT_SIGNED_AL1616,
1457 "MESA_FORMAT_SIGNED_AL1616",
1458 GL_LUMINANCE_ALPHA,
1459 GL_SIGNED_NORMALIZED,
1460 0, 0, 0, 16,
1461 16, 0, 0, 0, 0,
1462 1, 1, 4
1463 },
1464 {
1465 MESA_FORMAT_SIGNED_I16,
1466 "MESA_FORMAT_SIGNED_I16",
1467 GL_INTENSITY,
1468 GL_SIGNED_NORMALIZED,
1469 0, 0, 0, 0,
1470 0, 16, 0, 0, 0,
1471 1, 1, 2
1472 },
1473 {
1474 MESA_FORMAT_RGB9_E5_FLOAT,
1475 "MESA_FORMAT_RGB9_E5",
1476 GL_RGB,
1477 GL_FLOAT,
1478 9, 9, 9, 0,
1479 0, 0, 0, 0, 0,
1480 1, 1, 4
1481 },
1482 {
1483 MESA_FORMAT_R11_G11_B10_FLOAT,
1484 "MESA_FORMAT_R11_G11_B10_FLOAT",
1485 GL_RGB,
1486 GL_FLOAT,
1487 11, 11, 10, 0,
1488 0, 0, 0, 0, 0,
1489 1, 1, 4
1490 },
1491 /* ARB_depth_buffer_float */
1492 {
1493 MESA_FORMAT_Z32_FLOAT, /* Name */
1494 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1495 GL_DEPTH_COMPONENT, /* BaseFormat */
1496 GL_FLOAT, /* DataType */
1497 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1498 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1499 1, 1, 4 /* BlockWidth/Height,Bytes */
1500 },
1501 {
1502 MESA_FORMAT_Z32_FLOAT_X24S8, /* Name */
1503 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1504 GL_DEPTH_STENCIL, /* BaseFormat */
1505 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1506 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1507 */
1508 GL_FLOAT, /* DataType */
1509 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1510 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1511 1, 1, 8 /* BlockWidth/Height,Bytes */
1512 },
1513 {
1514 MESA_FORMAT_ARGB2101010_UINT,
1515 "MESA_FORMAT_ARGB2101010_UINT",
1516 GL_RGBA,
1517 GL_UNSIGNED_INT,
1518 10, 10, 10, 2,
1519 0, 0, 0, 0, 0,
1520 1, 1, 4
1521 },
1522 };
1523
1524
1525
1526 static const struct gl_format_info *
1527 _mesa_get_format_info(gl_format format)
1528 {
1529 const struct gl_format_info *info = &format_info[format];
1530 assert(info->Name == format);
1531 return info;
1532 }
1533
1534
1535 /** Return string name of format (for debugging) */
1536 const char *
1537 _mesa_get_format_name(gl_format format)
1538 {
1539 const struct gl_format_info *info = _mesa_get_format_info(format);
1540 return info->StrName;
1541 }
1542
1543
1544
1545 /**
1546 * Return bytes needed to store a block of pixels in the given format.
1547 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1548 * a block may be 4x4 or 8x4, etc.
1549 *
1550 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1551 */
1552 GLint
1553 _mesa_get_format_bytes(gl_format format)
1554 {
1555 const struct gl_format_info *info = _mesa_get_format_info(format);
1556 ASSERT(info->BytesPerBlock);
1557 ASSERT(info->BytesPerBlock <= MAX_PIXEL_BYTES ||
1558 _mesa_is_format_compressed(format));
1559 return info->BytesPerBlock;
1560 }
1561
1562
1563 /**
1564 * Return bits per component for the given format.
1565 * \param format one of MESA_FORMAT_x
1566 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1567 */
1568 GLint
1569 _mesa_get_format_bits(gl_format format, GLenum pname)
1570 {
1571 const struct gl_format_info *info = _mesa_get_format_info(format);
1572
1573 switch (pname) {
1574 case GL_RED_BITS:
1575 case GL_TEXTURE_RED_SIZE:
1576 case GL_RENDERBUFFER_RED_SIZE_EXT:
1577 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1578 return info->RedBits;
1579 case GL_GREEN_BITS:
1580 case GL_TEXTURE_GREEN_SIZE:
1581 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1582 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1583 return info->GreenBits;
1584 case GL_BLUE_BITS:
1585 case GL_TEXTURE_BLUE_SIZE:
1586 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1587 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1588 return info->BlueBits;
1589 case GL_ALPHA_BITS:
1590 case GL_TEXTURE_ALPHA_SIZE:
1591 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1592 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1593 return info->AlphaBits;
1594 case GL_TEXTURE_INTENSITY_SIZE:
1595 return info->IntensityBits;
1596 case GL_TEXTURE_LUMINANCE_SIZE:
1597 return info->LuminanceBits;
1598 case GL_INDEX_BITS:
1599 return info->IndexBits;
1600 case GL_DEPTH_BITS:
1601 case GL_TEXTURE_DEPTH_SIZE_ARB:
1602 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1603 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1604 return info->DepthBits;
1605 case GL_STENCIL_BITS:
1606 case GL_TEXTURE_STENCIL_SIZE_EXT:
1607 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1608 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1609 return info->StencilBits;
1610 default:
1611 _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
1612 return 0;
1613 }
1614 }
1615
1616
1617 GLuint
1618 _mesa_get_format_max_bits(gl_format format)
1619 {
1620 const struct gl_format_info *info = _mesa_get_format_info(format);
1621 GLuint max = MAX2(info->RedBits, info->GreenBits);
1622 max = MAX2(max, info->BlueBits);
1623 max = MAX2(max, info->AlphaBits);
1624 max = MAX2(max, info->LuminanceBits);
1625 max = MAX2(max, info->IntensityBits);
1626 max = MAX2(max, info->DepthBits);
1627 max = MAX2(max, info->StencilBits);
1628 return max;
1629 }
1630
1631
1632 /**
1633 * Return the data type (or more specifically, the data representation)
1634 * for the given format.
1635 * The return value will be one of:
1636 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1637 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1638 * GL_UNSIGNED_INT = an ordinary unsigned integer
1639 * GL_INT = an ordinary signed integer
1640 * GL_FLOAT = an ordinary float
1641 */
1642 GLenum
1643 _mesa_get_format_datatype(gl_format format)
1644 {
1645 const struct gl_format_info *info = _mesa_get_format_info(format);
1646 return info->DataType;
1647 }
1648
1649
1650 /**
1651 * Return the basic format for the given type. The result will be one of
1652 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1653 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1654 */
1655 GLenum
1656 _mesa_get_format_base_format(gl_format format)
1657 {
1658 const struct gl_format_info *info = _mesa_get_format_info(format);
1659 return info->BaseFormat;
1660 }
1661
1662
1663 /**
1664 * Return the block size (in pixels) for the given format. Normally
1665 * the block size is 1x1. But compressed formats will have block sizes
1666 * of 4x4 or 8x4 pixels, etc.
1667 * \param bw returns block width in pixels
1668 * \param bh returns block height in pixels
1669 */
1670 void
1671 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1672 {
1673 const struct gl_format_info *info = _mesa_get_format_info(format);
1674 *bw = info->BlockWidth;
1675 *bh = info->BlockHeight;
1676 }
1677
1678
1679 /** Is the given format a compressed format? */
1680 GLboolean
1681 _mesa_is_format_compressed(gl_format format)
1682 {
1683 const struct gl_format_info *info = _mesa_get_format_info(format);
1684 return info->BlockWidth > 1 || info->BlockHeight > 1;
1685 }
1686
1687
1688 /**
1689 * Determine if the given format represents a packed depth/stencil buffer.
1690 */
1691 GLboolean
1692 _mesa_is_format_packed_depth_stencil(gl_format format)
1693 {
1694 const struct gl_format_info *info = _mesa_get_format_info(format);
1695
1696 return info->BaseFormat == GL_DEPTH_STENCIL;
1697 }
1698
1699
1700 /**
1701 * Is the given format a signed/unsigned integer color format?
1702 */
1703 GLboolean
1704 _mesa_is_format_integer_color(gl_format format)
1705 {
1706 const struct gl_format_info *info = _mesa_get_format_info(format);
1707 return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
1708 info->BaseFormat != GL_DEPTH_COMPONENT &&
1709 info->BaseFormat != GL_DEPTH_STENCIL &&
1710 info->BaseFormat != GL_STENCIL_INDEX;
1711 }
1712
1713
1714 /**
1715 * Return color encoding for given format.
1716 * \return GL_LINEAR or GL_SRGB
1717 */
1718 GLenum
1719 _mesa_get_format_color_encoding(gl_format format)
1720 {
1721 /* XXX this info should be encoded in gl_format_info */
1722 switch (format) {
1723 case MESA_FORMAT_SRGB8:
1724 case MESA_FORMAT_SRGBA8:
1725 case MESA_FORMAT_SARGB8:
1726 case MESA_FORMAT_SL8:
1727 case MESA_FORMAT_SLA8:
1728 case MESA_FORMAT_SRGB_DXT1:
1729 case MESA_FORMAT_SRGBA_DXT1:
1730 case MESA_FORMAT_SRGBA_DXT3:
1731 case MESA_FORMAT_SRGBA_DXT5:
1732 return GL_SRGB;
1733 default:
1734 return GL_LINEAR;
1735 }
1736 }
1737
1738
1739 /**
1740 * For an sRGB format, return the corresponding linear color space format.
1741 * For non-sRGB formats, return the format as-is.
1742 */
1743 gl_format
1744 _mesa_get_srgb_format_linear(gl_format format)
1745 {
1746 switch (format) {
1747 case MESA_FORMAT_SRGB8:
1748 format = MESA_FORMAT_RGB888;
1749 break;
1750 case MESA_FORMAT_SRGBA8:
1751 format = MESA_FORMAT_RGBA8888;
1752 break;
1753 case MESA_FORMAT_SARGB8:
1754 format = MESA_FORMAT_ARGB8888;
1755 break;
1756 case MESA_FORMAT_SL8:
1757 format = MESA_FORMAT_L8;
1758 break;
1759 case MESA_FORMAT_SLA8:
1760 format = MESA_FORMAT_AL88;
1761 break;
1762 case MESA_FORMAT_SRGB_DXT1:
1763 format = MESA_FORMAT_RGB_DXT1;
1764 break;
1765 case MESA_FORMAT_SRGBA_DXT1:
1766 format = MESA_FORMAT_RGBA_DXT1;
1767 break;
1768 case MESA_FORMAT_SRGBA_DXT3:
1769 format = MESA_FORMAT_RGBA_DXT3;
1770 break;
1771 case MESA_FORMAT_SRGBA_DXT5:
1772 format = MESA_FORMAT_RGBA_DXT5;
1773 break;
1774 default:
1775 break;
1776 }
1777 return format;
1778 }
1779
1780
1781 /**
1782 * If the given format is a compressed format, return a corresponding
1783 * uncompressed format.
1784 */
1785 gl_format
1786 _mesa_get_uncompressed_format(gl_format format)
1787 {
1788 switch (format) {
1789 case MESA_FORMAT_RGB_FXT1:
1790 return MESA_FORMAT_RGB888;
1791 case MESA_FORMAT_RGBA_FXT1:
1792 return MESA_FORMAT_RGBA8888;
1793 case MESA_FORMAT_RGB_DXT1:
1794 case MESA_FORMAT_SRGB_DXT1:
1795 return MESA_FORMAT_RGB888;
1796 case MESA_FORMAT_RGBA_DXT1:
1797 case MESA_FORMAT_SRGBA_DXT1:
1798 return MESA_FORMAT_RGBA8888;
1799 case MESA_FORMAT_RGBA_DXT3:
1800 case MESA_FORMAT_SRGBA_DXT3:
1801 return MESA_FORMAT_RGBA8888;
1802 case MESA_FORMAT_RGBA_DXT5:
1803 case MESA_FORMAT_SRGBA_DXT5:
1804 return MESA_FORMAT_RGBA8888;
1805 case MESA_FORMAT_RED_RGTC1:
1806 return MESA_FORMAT_R8;
1807 case MESA_FORMAT_SIGNED_RED_RGTC1:
1808 return MESA_FORMAT_SIGNED_R8;
1809 case MESA_FORMAT_RG_RGTC2:
1810 return MESA_FORMAT_GR88;
1811 case MESA_FORMAT_SIGNED_RG_RGTC2:
1812 return MESA_FORMAT_SIGNED_RG88_REV;
1813 case MESA_FORMAT_L_LATC1:
1814 return MESA_FORMAT_L8;
1815 case MESA_FORMAT_SIGNED_L_LATC1:
1816 return MESA_FORMAT_SIGNED_L8;
1817 case MESA_FORMAT_LA_LATC2:
1818 return MESA_FORMAT_AL88;
1819 case MESA_FORMAT_SIGNED_LA_LATC2:
1820 return MESA_FORMAT_SIGNED_AL88;
1821 case MESA_FORMAT_ETC1_RGB8:
1822 return MESA_FORMAT_RGB888;
1823 default:
1824 #ifdef DEBUG
1825 assert(!_mesa_is_format_compressed(format));
1826 #endif
1827 return format;
1828 }
1829 }
1830
1831
1832 GLuint
1833 _mesa_format_num_components(gl_format format)
1834 {
1835 const struct gl_format_info *info = _mesa_get_format_info(format);
1836 return ((info->RedBits > 0) +
1837 (info->GreenBits > 0) +
1838 (info->BlueBits > 0) +
1839 (info->AlphaBits > 0) +
1840 (info->LuminanceBits > 0) +
1841 (info->IntensityBits > 0) +
1842 (info->DepthBits > 0) +
1843 (info->StencilBits > 0));
1844 }
1845
1846
1847 /**
1848 * Return number of bytes needed to store an image of the given size
1849 * in the given format.
1850 */
1851 GLuint
1852 _mesa_format_image_size(gl_format format, GLsizei width,
1853 GLsizei height, GLsizei depth)
1854 {
1855 const struct gl_format_info *info = _mesa_get_format_info(format);
1856 /* Strictly speaking, a conditional isn't needed here */
1857 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1858 /* compressed format (2D only for now) */
1859 const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
1860 const GLuint wblocks = (width + bw - 1) / bw;
1861 const GLuint hblocks = (height + bh - 1) / bh;
1862 const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
1863 return sz * depth;
1864 }
1865 else {
1866 /* non-compressed */
1867 const GLuint sz = width * height * depth * info->BytesPerBlock;
1868 return sz;
1869 }
1870 }
1871
1872
1873 /**
1874 * Same as _mesa_format_image_size() but returns a 64-bit value to
1875 * accomodate very large textures.
1876 */
1877 uint64_t
1878 _mesa_format_image_size64(gl_format format, GLsizei width,
1879 GLsizei height, GLsizei depth)
1880 {
1881 const struct gl_format_info *info = _mesa_get_format_info(format);
1882 /* Strictly speaking, a conditional isn't needed here */
1883 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1884 /* compressed format (2D only for now) */
1885 const uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
1886 const uint64_t wblocks = (width + bw - 1) / bw;
1887 const uint64_t hblocks = (height + bh - 1) / bh;
1888 const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
1889 return sz * depth;
1890 }
1891 else {
1892 /* non-compressed */
1893 const uint64_t sz = ((uint64_t) width *
1894 (uint64_t) height *
1895 (uint64_t) depth *
1896 info->BytesPerBlock);
1897 return sz;
1898 }
1899 }
1900
1901
1902
1903 GLint
1904 _mesa_format_row_stride(gl_format format, GLsizei width)
1905 {
1906 const struct gl_format_info *info = _mesa_get_format_info(format);
1907 /* Strictly speaking, a conditional isn't needed here */
1908 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1909 /* compressed format */
1910 const GLuint bw = info->BlockWidth;
1911 const GLuint wblocks = (width + bw - 1) / bw;
1912 const GLint stride = wblocks * info->BytesPerBlock;
1913 return stride;
1914 }
1915 else {
1916 const GLint stride = width * info->BytesPerBlock;
1917 return stride;
1918 }
1919 }
1920
1921
1922 /**
1923 * Debug/test: check that all formats are handled in the
1924 * _mesa_format_to_type_and_comps() function. When new pixel formats
1925 * are added to Mesa, that function needs to be updated.
1926 * This is a no-op after the first call.
1927 */
1928 static void
1929 check_format_to_type_and_comps(void)
1930 {
1931 gl_format f;
1932
1933 for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
1934 GLenum datatype = 0;
1935 GLuint comps = 0;
1936 /* This function will emit a problem/warning if the format is
1937 * not handled.
1938 */
1939 _mesa_format_to_type_and_comps(f, &datatype, &comps);
1940 }
1941 }
1942
1943
1944 /**
1945 * Do sanity checking of the format info table.
1946 */
1947 void
1948 _mesa_test_formats(void)
1949 {
1950 GLuint i;
1951
1952 STATIC_ASSERT(Elements(format_info) == MESA_FORMAT_COUNT);
1953
1954 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
1955 const struct gl_format_info *info = _mesa_get_format_info(i);
1956 assert(info);
1957
1958 assert(info->Name == i);
1959
1960 if (info->Name == MESA_FORMAT_NONE)
1961 continue;
1962
1963 if (info->BlockWidth == 1 && info->BlockHeight == 1) {
1964 if (info->RedBits > 0) {
1965 GLuint t = info->RedBits + info->GreenBits
1966 + info->BlueBits + info->AlphaBits;
1967 assert(t / 8 <= info->BytesPerBlock);
1968 (void) t;
1969 }
1970 }
1971
1972 assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
1973 info->DataType == GL_SIGNED_NORMALIZED ||
1974 info->DataType == GL_UNSIGNED_INT ||
1975 info->DataType == GL_INT ||
1976 info->DataType == GL_FLOAT ||
1977 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1978 info->DataType == GL_NONE);
1979
1980 if (info->BaseFormat == GL_RGB) {
1981 assert(info->RedBits > 0);
1982 assert(info->GreenBits > 0);
1983 assert(info->BlueBits > 0);
1984 assert(info->AlphaBits == 0);
1985 assert(info->LuminanceBits == 0);
1986 assert(info->IntensityBits == 0);
1987 }
1988 else if (info->BaseFormat == GL_RGBA) {
1989 assert(info->RedBits > 0);
1990 assert(info->GreenBits > 0);
1991 assert(info->BlueBits > 0);
1992 assert(info->AlphaBits > 0);
1993 assert(info->LuminanceBits == 0);
1994 assert(info->IntensityBits == 0);
1995 }
1996 else if (info->BaseFormat == GL_RG) {
1997 assert(info->RedBits > 0);
1998 assert(info->GreenBits > 0);
1999 assert(info->BlueBits == 0);
2000 assert(info->AlphaBits == 0);
2001 assert(info->LuminanceBits == 0);
2002 assert(info->IntensityBits == 0);
2003 }
2004 else if (info->BaseFormat == GL_RED) {
2005 assert(info->RedBits > 0);
2006 assert(info->GreenBits == 0);
2007 assert(info->BlueBits == 0);
2008 assert(info->AlphaBits == 0);
2009 assert(info->LuminanceBits == 0);
2010 assert(info->IntensityBits == 0);
2011 }
2012 else if (info->BaseFormat == GL_LUMINANCE) {
2013 assert(info->RedBits == 0);
2014 assert(info->GreenBits == 0);
2015 assert(info->BlueBits == 0);
2016 assert(info->AlphaBits == 0);
2017 assert(info->LuminanceBits > 0);
2018 assert(info->IntensityBits == 0);
2019 }
2020 else if (info->BaseFormat == GL_INTENSITY) {
2021 assert(info->RedBits == 0);
2022 assert(info->GreenBits == 0);
2023 assert(info->BlueBits == 0);
2024 assert(info->AlphaBits == 0);
2025 assert(info->LuminanceBits == 0);
2026 assert(info->IntensityBits > 0);
2027 }
2028 }
2029
2030 check_format_to_type_and_comps();
2031 }
2032
2033
2034
2035 /**
2036 * Return datatype and number of components per texel for the given gl_format.
2037 * Only used for mipmap generation code.
2038 */
2039 void
2040 _mesa_format_to_type_and_comps(gl_format format,
2041 GLenum *datatype, GLuint *comps)
2042 {
2043 switch (format) {
2044 case MESA_FORMAT_RGBA8888:
2045 case MESA_FORMAT_RGBA8888_REV:
2046 case MESA_FORMAT_ARGB8888:
2047 case MESA_FORMAT_ARGB8888_REV:
2048 case MESA_FORMAT_RGBX8888:
2049 case MESA_FORMAT_RGBX8888_REV:
2050 case MESA_FORMAT_XRGB8888:
2051 case MESA_FORMAT_XRGB8888_REV:
2052 *datatype = GL_UNSIGNED_BYTE;
2053 *comps = 4;
2054 return;
2055 case MESA_FORMAT_RGB888:
2056 case MESA_FORMAT_BGR888:
2057 *datatype = GL_UNSIGNED_BYTE;
2058 *comps = 3;
2059 return;
2060 case MESA_FORMAT_RGB565:
2061 case MESA_FORMAT_RGB565_REV:
2062 *datatype = GL_UNSIGNED_SHORT_5_6_5;
2063 *comps = 3;
2064 return;
2065
2066 case MESA_FORMAT_ARGB4444:
2067 case MESA_FORMAT_ARGB4444_REV:
2068 *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
2069 *comps = 4;
2070 return;
2071
2072 case MESA_FORMAT_ARGB1555:
2073 case MESA_FORMAT_ARGB1555_REV:
2074 *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2075 *comps = 4;
2076 return;
2077
2078 case MESA_FORMAT_ARGB2101010:
2079 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2080 *comps = 4;
2081 return;
2082
2083 case MESA_FORMAT_RGBA5551:
2084 *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
2085 *comps = 4;
2086 return;
2087
2088 case MESA_FORMAT_AL44:
2089 *datatype = MESA_UNSIGNED_BYTE_4_4;
2090 *comps = 2;
2091 return;
2092
2093 case MESA_FORMAT_AL88:
2094 case MESA_FORMAT_AL88_REV:
2095 case MESA_FORMAT_GR88:
2096 case MESA_FORMAT_RG88:
2097 *datatype = GL_UNSIGNED_BYTE;
2098 *comps = 2;
2099 return;
2100
2101 case MESA_FORMAT_AL1616:
2102 case MESA_FORMAT_AL1616_REV:
2103 case MESA_FORMAT_RG1616:
2104 case MESA_FORMAT_RG1616_REV:
2105 *datatype = GL_UNSIGNED_SHORT;
2106 *comps = 2;
2107 return;
2108
2109 case MESA_FORMAT_R16:
2110 case MESA_FORMAT_A16:
2111 case MESA_FORMAT_L16:
2112 case MESA_FORMAT_I16:
2113 *datatype = GL_UNSIGNED_SHORT;
2114 *comps = 1;
2115 return;
2116
2117 case MESA_FORMAT_RGB332:
2118 *datatype = GL_UNSIGNED_BYTE_3_3_2;
2119 *comps = 3;
2120 return;
2121
2122 case MESA_FORMAT_A8:
2123 case MESA_FORMAT_L8:
2124 case MESA_FORMAT_I8:
2125 case MESA_FORMAT_R8:
2126 case MESA_FORMAT_S8:
2127 *datatype = GL_UNSIGNED_BYTE;
2128 *comps = 1;
2129 return;
2130
2131 case MESA_FORMAT_YCBCR:
2132 case MESA_FORMAT_YCBCR_REV:
2133 *datatype = GL_UNSIGNED_SHORT;
2134 *comps = 2;
2135 return;
2136
2137 case MESA_FORMAT_Z24_S8:
2138 *datatype = GL_UNSIGNED_INT_24_8_MESA;
2139 *comps = 2;
2140 return;
2141
2142 case MESA_FORMAT_S8_Z24:
2143 *datatype = GL_UNSIGNED_INT_8_24_REV_MESA;
2144 *comps = 2;
2145 return;
2146
2147 case MESA_FORMAT_Z16:
2148 *datatype = GL_UNSIGNED_SHORT;
2149 *comps = 1;
2150 return;
2151
2152 case MESA_FORMAT_X8_Z24:
2153 *datatype = GL_UNSIGNED_INT;
2154 *comps = 1;
2155 return;
2156
2157 case MESA_FORMAT_Z24_X8:
2158 *datatype = GL_UNSIGNED_INT;
2159 *comps = 1;
2160 return;
2161
2162 case MESA_FORMAT_Z32:
2163 *datatype = GL_UNSIGNED_INT;
2164 *comps = 1;
2165 return;
2166
2167 case MESA_FORMAT_Z32_FLOAT:
2168 *datatype = GL_FLOAT;
2169 *comps = 1;
2170 return;
2171
2172 case MESA_FORMAT_Z32_FLOAT_X24S8:
2173 *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
2174 *comps = 1;
2175 return;
2176
2177 case MESA_FORMAT_DUDV8:
2178 *datatype = GL_BYTE;
2179 *comps = 2;
2180 return;
2181
2182 case MESA_FORMAT_SIGNED_R8:
2183 case MESA_FORMAT_SIGNED_A8:
2184 case MESA_FORMAT_SIGNED_L8:
2185 case MESA_FORMAT_SIGNED_I8:
2186 *datatype = GL_BYTE;
2187 *comps = 1;
2188 return;
2189 case MESA_FORMAT_SIGNED_RG88_REV:
2190 case MESA_FORMAT_SIGNED_AL88:
2191 *datatype = GL_BYTE;
2192 *comps = 2;
2193 return;
2194 case MESA_FORMAT_SIGNED_RGBA8888:
2195 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2196 case MESA_FORMAT_SIGNED_RGBX8888:
2197 *datatype = GL_BYTE;
2198 *comps = 4;
2199 return;
2200
2201 case MESA_FORMAT_RGBA_16:
2202 *datatype = GL_UNSIGNED_SHORT;
2203 *comps = 4;
2204 return;
2205
2206 case MESA_FORMAT_SIGNED_R16:
2207 case MESA_FORMAT_SIGNED_A16:
2208 case MESA_FORMAT_SIGNED_L16:
2209 case MESA_FORMAT_SIGNED_I16:
2210 *datatype = GL_SHORT;
2211 *comps = 1;
2212 return;
2213 case MESA_FORMAT_SIGNED_GR1616:
2214 case MESA_FORMAT_SIGNED_AL1616:
2215 *datatype = GL_SHORT;
2216 *comps = 2;
2217 return;
2218 case MESA_FORMAT_SIGNED_RGB_16:
2219 *datatype = GL_SHORT;
2220 *comps = 3;
2221 return;
2222 case MESA_FORMAT_SIGNED_RGBA_16:
2223 *datatype = GL_SHORT;
2224 *comps = 4;
2225 return;
2226
2227 #if FEATURE_EXT_texture_sRGB
2228 case MESA_FORMAT_SRGB8:
2229 *datatype = GL_UNSIGNED_BYTE;
2230 *comps = 3;
2231 return;
2232 case MESA_FORMAT_SRGBA8:
2233 case MESA_FORMAT_SARGB8:
2234 *datatype = GL_UNSIGNED_BYTE;
2235 *comps = 4;
2236 return;
2237 case MESA_FORMAT_SL8:
2238 *datatype = GL_UNSIGNED_BYTE;
2239 *comps = 1;
2240 return;
2241 case MESA_FORMAT_SLA8:
2242 *datatype = GL_UNSIGNED_BYTE;
2243 *comps = 2;
2244 return;
2245 #endif
2246
2247 #if FEATURE_texture_fxt1
2248 case MESA_FORMAT_RGB_FXT1:
2249 case MESA_FORMAT_RGBA_FXT1:
2250 #endif
2251 #if FEATURE_texture_s3tc
2252 case MESA_FORMAT_RGB_DXT1:
2253 case MESA_FORMAT_RGBA_DXT1:
2254 case MESA_FORMAT_RGBA_DXT3:
2255 case MESA_FORMAT_RGBA_DXT5:
2256 #if FEATURE_EXT_texture_sRGB
2257 case MESA_FORMAT_SRGB_DXT1:
2258 case MESA_FORMAT_SRGBA_DXT1:
2259 case MESA_FORMAT_SRGBA_DXT3:
2260 case MESA_FORMAT_SRGBA_DXT5:
2261 #endif
2262 #endif
2263 case MESA_FORMAT_RED_RGTC1:
2264 case MESA_FORMAT_SIGNED_RED_RGTC1:
2265 case MESA_FORMAT_RG_RGTC2:
2266 case MESA_FORMAT_SIGNED_RG_RGTC2:
2267 case MESA_FORMAT_L_LATC1:
2268 case MESA_FORMAT_SIGNED_L_LATC1:
2269 case MESA_FORMAT_LA_LATC2:
2270 case MESA_FORMAT_SIGNED_LA_LATC2:
2271 case MESA_FORMAT_ETC1_RGB8:
2272 /* XXX generate error instead? */
2273 *datatype = GL_UNSIGNED_BYTE;
2274 *comps = 0;
2275 return;
2276
2277 case MESA_FORMAT_RGBA_FLOAT32:
2278 *datatype = GL_FLOAT;
2279 *comps = 4;
2280 return;
2281 case MESA_FORMAT_RGBA_FLOAT16:
2282 *datatype = GL_HALF_FLOAT_ARB;
2283 *comps = 4;
2284 return;
2285 case MESA_FORMAT_RGB_FLOAT32:
2286 *datatype = GL_FLOAT;
2287 *comps = 3;
2288 return;
2289 case MESA_FORMAT_RGB_FLOAT16:
2290 *datatype = GL_HALF_FLOAT_ARB;
2291 *comps = 3;
2292 return;
2293 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2294 case MESA_FORMAT_RG_FLOAT32:
2295 *datatype = GL_FLOAT;
2296 *comps = 2;
2297 return;
2298 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2299 case MESA_FORMAT_RG_FLOAT16:
2300 *datatype = GL_HALF_FLOAT_ARB;
2301 *comps = 2;
2302 return;
2303 case MESA_FORMAT_ALPHA_FLOAT32:
2304 case MESA_FORMAT_LUMINANCE_FLOAT32:
2305 case MESA_FORMAT_INTENSITY_FLOAT32:
2306 case MESA_FORMAT_R_FLOAT32:
2307 *datatype = GL_FLOAT;
2308 *comps = 1;
2309 return;
2310 case MESA_FORMAT_ALPHA_FLOAT16:
2311 case MESA_FORMAT_LUMINANCE_FLOAT16:
2312 case MESA_FORMAT_INTENSITY_FLOAT16:
2313 case MESA_FORMAT_R_FLOAT16:
2314 *datatype = GL_HALF_FLOAT_ARB;
2315 *comps = 1;
2316 return;
2317
2318 case MESA_FORMAT_ALPHA_UINT8:
2319 case MESA_FORMAT_LUMINANCE_UINT8:
2320 case MESA_FORMAT_INTENSITY_UINT8:
2321 *datatype = GL_UNSIGNED_BYTE;
2322 *comps = 1;
2323 return;
2324 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2325 *datatype = GL_UNSIGNED_BYTE;
2326 *comps = 2;
2327 return;
2328
2329 case MESA_FORMAT_ALPHA_UINT16:
2330 case MESA_FORMAT_LUMINANCE_UINT16:
2331 case MESA_FORMAT_INTENSITY_UINT16:
2332 *datatype = GL_UNSIGNED_SHORT;
2333 *comps = 1;
2334 return;
2335 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2336 *datatype = GL_UNSIGNED_SHORT;
2337 *comps = 2;
2338 return;
2339 case MESA_FORMAT_ALPHA_UINT32:
2340 case MESA_FORMAT_LUMINANCE_UINT32:
2341 case MESA_FORMAT_INTENSITY_UINT32:
2342 *datatype = GL_UNSIGNED_INT;
2343 *comps = 1;
2344 return;
2345 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2346 *datatype = GL_UNSIGNED_INT;
2347 *comps = 2;
2348 return;
2349 case MESA_FORMAT_ALPHA_INT8:
2350 case MESA_FORMAT_LUMINANCE_INT8:
2351 case MESA_FORMAT_INTENSITY_INT8:
2352 *datatype = GL_BYTE;
2353 *comps = 1;
2354 return;
2355 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2356 *datatype = GL_BYTE;
2357 *comps = 2;
2358 return;
2359
2360 case MESA_FORMAT_ALPHA_INT16:
2361 case MESA_FORMAT_LUMINANCE_INT16:
2362 case MESA_FORMAT_INTENSITY_INT16:
2363 *datatype = GL_SHORT;
2364 *comps = 1;
2365 return;
2366 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2367 *datatype = GL_SHORT;
2368 *comps = 2;
2369 return;
2370
2371 case MESA_FORMAT_ALPHA_INT32:
2372 case MESA_FORMAT_LUMINANCE_INT32:
2373 case MESA_FORMAT_INTENSITY_INT32:
2374 *datatype = GL_INT;
2375 *comps = 1;
2376 return;
2377 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2378 *datatype = GL_INT;
2379 *comps = 2;
2380 return;
2381
2382 case MESA_FORMAT_R_INT8:
2383 *datatype = GL_BYTE;
2384 *comps = 1;
2385 return;
2386 case MESA_FORMAT_RG_INT8:
2387 *datatype = GL_BYTE;
2388 *comps = 2;
2389 return;
2390 case MESA_FORMAT_RGB_INT8:
2391 *datatype = GL_BYTE;
2392 *comps = 3;
2393 return;
2394 case MESA_FORMAT_RGBA_INT8:
2395 *datatype = GL_BYTE;
2396 *comps = 4;
2397 return;
2398 case MESA_FORMAT_R_INT16:
2399 *datatype = GL_SHORT;
2400 *comps = 1;
2401 return;
2402 case MESA_FORMAT_RG_INT16:
2403 *datatype = GL_SHORT;
2404 *comps = 2;
2405 return;
2406 case MESA_FORMAT_RGB_INT16:
2407 *datatype = GL_SHORT;
2408 *comps = 3;
2409 return;
2410 case MESA_FORMAT_RGBA_INT16:
2411 *datatype = GL_SHORT;
2412 *comps = 4;
2413 return;
2414 case MESA_FORMAT_R_INT32:
2415 *datatype = GL_INT;
2416 *comps = 1;
2417 return;
2418 case MESA_FORMAT_RG_INT32:
2419 *datatype = GL_INT;
2420 *comps = 2;
2421 return;
2422 case MESA_FORMAT_RGB_INT32:
2423 *datatype = GL_INT;
2424 *comps = 3;
2425 return;
2426 case MESA_FORMAT_RGBA_INT32:
2427 *datatype = GL_INT;
2428 *comps = 4;
2429 return;
2430
2431 /**
2432 * \name Non-normalized unsigned integer formats.
2433 */
2434 case MESA_FORMAT_R_UINT8:
2435 *datatype = GL_UNSIGNED_BYTE;
2436 *comps = 1;
2437 return;
2438 case MESA_FORMAT_RG_UINT8:
2439 *datatype = GL_UNSIGNED_BYTE;
2440 *comps = 2;
2441 return;
2442 case MESA_FORMAT_RGB_UINT8:
2443 *datatype = GL_UNSIGNED_BYTE;
2444 *comps = 3;
2445 return;
2446 case MESA_FORMAT_RGBA_UINT8:
2447 *datatype = GL_UNSIGNED_BYTE;
2448 *comps = 4;
2449 return;
2450 case MESA_FORMAT_R_UINT16:
2451 *datatype = GL_UNSIGNED_SHORT;
2452 *comps = 1;
2453 return;
2454 case MESA_FORMAT_RG_UINT16:
2455 *datatype = GL_UNSIGNED_SHORT;
2456 *comps = 2;
2457 return;
2458 case MESA_FORMAT_RGB_UINT16:
2459 *datatype = GL_UNSIGNED_SHORT;
2460 *comps = 3;
2461 return;
2462 case MESA_FORMAT_RGBA_UINT16:
2463 *datatype = GL_UNSIGNED_SHORT;
2464 *comps = 4;
2465 return;
2466 case MESA_FORMAT_R_UINT32:
2467 *datatype = GL_UNSIGNED_INT;
2468 *comps = 1;
2469 return;
2470 case MESA_FORMAT_RG_UINT32:
2471 *datatype = GL_UNSIGNED_INT;
2472 *comps = 2;
2473 return;
2474 case MESA_FORMAT_RGB_UINT32:
2475 *datatype = GL_UNSIGNED_INT;
2476 *comps = 3;
2477 return;
2478 case MESA_FORMAT_RGBA_UINT32:
2479 *datatype = GL_UNSIGNED_INT;
2480 *comps = 4;
2481 return;
2482
2483 case MESA_FORMAT_RGB9_E5_FLOAT:
2484 *datatype = GL_UNSIGNED_INT_5_9_9_9_REV;
2485 *comps = 3;
2486 return;
2487
2488 case MESA_FORMAT_R11_G11_B10_FLOAT:
2489 *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV;
2490 *comps = 3;
2491 return;
2492
2493 case MESA_FORMAT_ARGB2101010_UINT:
2494 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2495 *comps = 4;
2496 return;
2497
2498 case MESA_FORMAT_COUNT:
2499 assert(0);
2500 return;
2501
2502 case MESA_FORMAT_NONE:
2503 /* For debug builds, warn if any formats are not handled */
2504 #ifdef DEBUG
2505 default:
2506 #endif
2507 _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2508 _mesa_get_format_name(format));
2509 *datatype = 0;
2510 *comps = 1;
2511 }
2512 }
2513
2514 /**
2515 * Check if a gl_format exactly matches a GL formaat/type combination
2516 * such that we can use memcpy() from one to the other.
2517 * \param gl_format a MESA_FORMAT_x value
2518 * \param format the user-specified image format
2519 * \param type the user-specified image datatype
2520 * \param swapBytes typically the current pixel pack/unpack byteswap state
2521 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2522 */
2523 GLboolean
2524 _mesa_format_matches_format_and_type(gl_format gl_format,
2525 GLenum format, GLenum type,
2526 GLboolean swapBytes)
2527 {
2528 const GLboolean littleEndian = _mesa_little_endian();
2529
2530 /* Note: When reading a GL format/type combination, the format lists channel
2531 * assignments from most significant channel in the type to least
2532 * significant. A type with _REV indicates that the assignments are
2533 * swapped, so they are listed from least significant to most significant.
2534 *
2535 * For sanity, please keep this switch statement ordered the same as the
2536 * enums in formats.h.
2537 */
2538
2539 switch (gl_format) {
2540
2541 case MESA_FORMAT_NONE:
2542 case MESA_FORMAT_COUNT:
2543 return GL_FALSE;
2544
2545 case MESA_FORMAT_RGBA8888:
2546 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2547 return GL_TRUE;
2548
2549 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes)
2550 return GL_TRUE;
2551
2552 if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !littleEndian)
2553 return GL_TRUE;
2554
2555 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV
2556 && !swapBytes)
2557 return GL_TRUE;
2558
2559 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8
2560 && swapBytes)
2561 return GL_TRUE;
2562
2563 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && littleEndian)
2564 return GL_TRUE;
2565
2566 return GL_FALSE;
2567
2568 case MESA_FORMAT_RGBA8888_REV:
2569 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2570 !swapBytes)
2571 return GL_TRUE;
2572
2573 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2574 return GL_TRUE;
2575
2576 if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && littleEndian)
2577 return GL_TRUE;
2578
2579 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 &&
2580 !swapBytes)
2581 return GL_TRUE;
2582
2583 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2584 swapBytes)
2585 return GL_TRUE;
2586
2587 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && !littleEndian)
2588 return GL_TRUE;
2589
2590 return GL_FALSE;
2591
2592 case MESA_FORMAT_ARGB8888:
2593 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2594 !swapBytes)
2595 return GL_TRUE;
2596
2597 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2598 return GL_TRUE;
2599
2600 if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && littleEndian)
2601 return GL_TRUE;
2602
2603 return GL_FALSE;
2604
2605 case MESA_FORMAT_ARGB8888_REV:
2606 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2607 return GL_TRUE;
2608
2609 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2610 swapBytes)
2611 return GL_TRUE;
2612
2613 if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && !littleEndian)
2614 return GL_TRUE;
2615
2616 return GL_FALSE;
2617
2618 case MESA_FORMAT_RGBX8888:
2619 case MESA_FORMAT_RGBX8888_REV:
2620 return GL_FALSE;
2621
2622 case MESA_FORMAT_XRGB8888:
2623 case MESA_FORMAT_XRGB8888_REV:
2624 return GL_FALSE;
2625
2626 case MESA_FORMAT_RGB888:
2627 return format == GL_BGR && type == GL_UNSIGNED_BYTE && littleEndian;
2628
2629 case MESA_FORMAT_BGR888:
2630 return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2631
2632 case MESA_FORMAT_RGB565:
2633 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && !swapBytes;
2634
2635 case MESA_FORMAT_RGB565_REV:
2636 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2637 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2638 * according to formats.h, so they can't be matched.
2639 */
2640 return GL_FALSE;
2641
2642 case MESA_FORMAT_ARGB4444:
2643 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV &&
2644 !swapBytes;
2645
2646 case MESA_FORMAT_ARGB4444_REV:
2647 return GL_FALSE;
2648
2649 case MESA_FORMAT_RGBA5551:
2650 return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
2651 !swapBytes;
2652
2653 case MESA_FORMAT_ARGB1555:
2654 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV &&
2655 !swapBytes;
2656
2657 case MESA_FORMAT_ARGB1555_REV:
2658 return GL_FALSE;
2659
2660 case MESA_FORMAT_AL44:
2661 return GL_FALSE;
2662 case MESA_FORMAT_AL88:
2663 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2664 case MESA_FORMAT_AL88_REV:
2665 return GL_FALSE;
2666
2667 case MESA_FORMAT_AL1616:
2668 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes;
2669 case MESA_FORMAT_AL1616_REV:
2670 return GL_FALSE;
2671
2672 case MESA_FORMAT_RGB332:
2673 return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2674
2675 case MESA_FORMAT_A8:
2676 return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2677 case MESA_FORMAT_A16:
2678 return format == GL_ALPHA && type == GL_UNSIGNED_SHORT &&
2679 littleEndian && !swapBytes;
2680 case MESA_FORMAT_L8:
2681 return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2682 case MESA_FORMAT_L16:
2683 return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT &&
2684 littleEndian && !swapBytes;
2685 case MESA_FORMAT_I8:
2686 return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2687 case MESA_FORMAT_I16:
2688 return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT &&
2689 littleEndian && !swapBytes;
2690
2691 case MESA_FORMAT_YCBCR:
2692 case MESA_FORMAT_YCBCR_REV:
2693 return GL_FALSE;
2694
2695 case MESA_FORMAT_R8:
2696 return format == GL_RED && type == GL_UNSIGNED_BYTE;
2697 case MESA_FORMAT_GR88:
2698 return format == GL_RG && type == GL_UNSIGNED_BYTE && littleEndian;
2699 case MESA_FORMAT_RG88:
2700 return GL_FALSE;
2701
2702 case MESA_FORMAT_R16:
2703 return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian &&
2704 !swapBytes;
2705 case MESA_FORMAT_RG1616:
2706 return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian &&
2707 !swapBytes;
2708 case MESA_FORMAT_RG1616_REV:
2709 return GL_FALSE;
2710
2711 case MESA_FORMAT_ARGB2101010:
2712 return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2713 !swapBytes;
2714
2715 case MESA_FORMAT_Z24_S8:
2716 return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8 &&
2717 !swapBytes;
2718 case MESA_FORMAT_Z24_X8:
2719 case MESA_FORMAT_S8_Z24:
2720 return GL_FALSE;
2721
2722 case MESA_FORMAT_Z16:
2723 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT &&
2724 !swapBytes;
2725
2726 case MESA_FORMAT_X8_Z24:
2727 return GL_FALSE;
2728
2729 case MESA_FORMAT_Z32:
2730 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT &&
2731 !swapBytes;
2732
2733 case MESA_FORMAT_S8:
2734 return format == GL_STENCIL_INDEX && type == GL_UNSIGNED_BYTE;
2735
2736 case MESA_FORMAT_SRGB8:
2737 case MESA_FORMAT_SRGBA8:
2738 case MESA_FORMAT_SARGB8:
2739 case MESA_FORMAT_SL8:
2740 case MESA_FORMAT_SLA8:
2741 case MESA_FORMAT_SRGB_DXT1:
2742 case MESA_FORMAT_SRGBA_DXT1:
2743 case MESA_FORMAT_SRGBA_DXT3:
2744 case MESA_FORMAT_SRGBA_DXT5:
2745 return GL_FALSE;
2746
2747 case MESA_FORMAT_RGB_FXT1:
2748 case MESA_FORMAT_RGBA_FXT1:
2749 case MESA_FORMAT_RGB_DXT1:
2750 case MESA_FORMAT_RGBA_DXT1:
2751 case MESA_FORMAT_RGBA_DXT3:
2752 case MESA_FORMAT_RGBA_DXT5:
2753 return GL_FALSE;
2754
2755 case MESA_FORMAT_RGBA_FLOAT32:
2756 return format == GL_RGBA && type == GL_FLOAT && !swapBytes;
2757 case MESA_FORMAT_RGBA_FLOAT16:
2758 return format == GL_RGBA && type == GL_HALF_FLOAT && !swapBytes;
2759
2760 case MESA_FORMAT_RGB_FLOAT32:
2761 return format == GL_RGB && type == GL_FLOAT && !swapBytes;
2762 case MESA_FORMAT_RGB_FLOAT16:
2763 return format == GL_RGB && type == GL_HALF_FLOAT && !swapBytes;
2764
2765 case MESA_FORMAT_ALPHA_FLOAT32:
2766 return format == GL_ALPHA && type == GL_FLOAT && !swapBytes;
2767 case MESA_FORMAT_ALPHA_FLOAT16:
2768 return format == GL_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2769
2770 case MESA_FORMAT_LUMINANCE_FLOAT32:
2771 return format == GL_LUMINANCE && type == GL_FLOAT && !swapBytes;
2772 case MESA_FORMAT_LUMINANCE_FLOAT16:
2773 return format == GL_LUMINANCE && type == GL_HALF_FLOAT && !swapBytes;
2774
2775 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2776 return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT && !swapBytes;
2777 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2778 return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2779
2780 case MESA_FORMAT_INTENSITY_FLOAT32:
2781 return format == GL_INTENSITY && type == GL_FLOAT && !swapBytes;
2782 case MESA_FORMAT_INTENSITY_FLOAT16:
2783 return format == GL_INTENSITY && type == GL_HALF_FLOAT && !swapBytes;
2784
2785 case MESA_FORMAT_R_FLOAT32:
2786 return format == GL_RED && type == GL_FLOAT && !swapBytes;
2787 case MESA_FORMAT_R_FLOAT16:
2788 return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes;
2789
2790 case MESA_FORMAT_RG_FLOAT32:
2791 return format == GL_RG && type == GL_FLOAT && !swapBytes;
2792 case MESA_FORMAT_RG_FLOAT16:
2793 return format == GL_RG && type == GL_HALF_FLOAT && !swapBytes;
2794
2795 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2796 case MESA_FORMAT_ALPHA_UINT8:
2797 case MESA_FORMAT_ALPHA_UINT16:
2798 case MESA_FORMAT_ALPHA_UINT32:
2799 case MESA_FORMAT_ALPHA_INT8:
2800 case MESA_FORMAT_ALPHA_INT16:
2801 case MESA_FORMAT_ALPHA_INT32:
2802 return GL_FALSE;
2803
2804 case MESA_FORMAT_INTENSITY_UINT8:
2805 case MESA_FORMAT_INTENSITY_UINT16:
2806 case MESA_FORMAT_INTENSITY_UINT32:
2807 case MESA_FORMAT_INTENSITY_INT8:
2808 case MESA_FORMAT_INTENSITY_INT16:
2809 case MESA_FORMAT_INTENSITY_INT32:
2810 return GL_FALSE;
2811
2812 case MESA_FORMAT_LUMINANCE_UINT8:
2813 case MESA_FORMAT_LUMINANCE_UINT16:
2814 case MESA_FORMAT_LUMINANCE_UINT32:
2815 case MESA_FORMAT_LUMINANCE_INT8:
2816 case MESA_FORMAT_LUMINANCE_INT16:
2817 case MESA_FORMAT_LUMINANCE_INT32:
2818 return GL_FALSE;
2819
2820 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2821 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2822 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2823 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2824 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2825 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2826 return GL_FALSE;
2827
2828 case MESA_FORMAT_R_INT8:
2829 case MESA_FORMAT_RG_INT8:
2830 case MESA_FORMAT_RGB_INT8:
2831 case MESA_FORMAT_RGBA_INT8:
2832 case MESA_FORMAT_R_INT16:
2833 case MESA_FORMAT_RG_INT16:
2834 case MESA_FORMAT_RGB_INT16:
2835 case MESA_FORMAT_RGBA_INT16:
2836 case MESA_FORMAT_R_INT32:
2837 case MESA_FORMAT_RG_INT32:
2838 case MESA_FORMAT_RGB_INT32:
2839 case MESA_FORMAT_RGBA_INT32:
2840 return GL_FALSE;
2841
2842 case MESA_FORMAT_R_UINT8:
2843 case MESA_FORMAT_RG_UINT8:
2844 case MESA_FORMAT_RGB_UINT8:
2845 case MESA_FORMAT_RGBA_UINT8:
2846 case MESA_FORMAT_R_UINT16:
2847 case MESA_FORMAT_RG_UINT16:
2848 case MESA_FORMAT_RGB_UINT16:
2849 case MESA_FORMAT_RGBA_UINT16:
2850 case MESA_FORMAT_R_UINT32:
2851 case MESA_FORMAT_RG_UINT32:
2852 case MESA_FORMAT_RGB_UINT32:
2853 case MESA_FORMAT_RGBA_UINT32:
2854 return GL_FALSE;
2855
2856 case MESA_FORMAT_DUDV8:
2857 case MESA_FORMAT_SIGNED_R8:
2858 case MESA_FORMAT_SIGNED_RG88_REV:
2859 case MESA_FORMAT_SIGNED_RGBX8888:
2860 return GL_FALSE;
2861
2862 case MESA_FORMAT_SIGNED_RGBA8888:
2863 if (format == GL_RGBA && type == GL_BYTE && !littleEndian)
2864 return GL_TRUE;
2865
2866 if (format == GL_ABGR_EXT && type == GL_BYTE && littleEndian)
2867 return GL_TRUE;
2868
2869 return GL_FALSE;
2870
2871 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2872 if (format == GL_RGBA && type == GL_BYTE && littleEndian)
2873 return GL_TRUE;
2874
2875 if (format == GL_ABGR_EXT && type == GL_BYTE && !littleEndian)
2876 return GL_TRUE;
2877
2878 return GL_FALSE;
2879
2880 case MESA_FORMAT_SIGNED_R16:
2881 case MESA_FORMAT_SIGNED_GR1616:
2882 case MESA_FORMAT_SIGNED_RGB_16:
2883 case MESA_FORMAT_SIGNED_RGBA_16:
2884 case MESA_FORMAT_RGBA_16:
2885 /* FINISHME: SNORM */
2886 return GL_FALSE;
2887
2888 case MESA_FORMAT_RED_RGTC1:
2889 case MESA_FORMAT_SIGNED_RED_RGTC1:
2890 case MESA_FORMAT_RG_RGTC2:
2891 case MESA_FORMAT_SIGNED_RG_RGTC2:
2892 return GL_FALSE;
2893
2894 case MESA_FORMAT_L_LATC1:
2895 case MESA_FORMAT_SIGNED_L_LATC1:
2896 case MESA_FORMAT_LA_LATC2:
2897 case MESA_FORMAT_SIGNED_LA_LATC2:
2898 return GL_FALSE;
2899
2900 case MESA_FORMAT_ETC1_RGB8:
2901 return GL_FALSE;
2902
2903 case MESA_FORMAT_SIGNED_A8:
2904 case MESA_FORMAT_SIGNED_L8:
2905 case MESA_FORMAT_SIGNED_AL88:
2906 case MESA_FORMAT_SIGNED_I8:
2907 case MESA_FORMAT_SIGNED_A16:
2908 case MESA_FORMAT_SIGNED_L16:
2909 case MESA_FORMAT_SIGNED_AL1616:
2910 case MESA_FORMAT_SIGNED_I16:
2911 /* FINISHME: SNORM */
2912 return GL_FALSE;
2913
2914 case MESA_FORMAT_ARGB2101010_UINT:
2915 return (format == GL_BGRA_INTEGER_EXT &&
2916 type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2917 !swapBytes);
2918
2919 case MESA_FORMAT_RGB9_E5_FLOAT:
2920 return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV &&
2921 !swapBytes;
2922
2923 case MESA_FORMAT_R11_G11_B10_FLOAT:
2924 return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV &&
2925 !swapBytes;
2926
2927 case MESA_FORMAT_Z32_FLOAT:
2928 return format == GL_DEPTH_COMPONENT && type == GL_FLOAT && !swapBytes;
2929
2930 case MESA_FORMAT_Z32_FLOAT_X24S8:
2931 return GL_FALSE;
2932 }
2933
2934 return GL_FALSE;
2935 }