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mesa: remove FEATURE_texture_fxt1 define.
[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 #include "glformats.h"
32
33
34 /**
35 * Information about texture formats.
36 */
37 struct gl_format_info
38 {
39 gl_format Name;
40
41 /** text name for debugging */
42 const char *StrName;
43
44 /**
45 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
46 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
47 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL, GL_DUDV_ATI.
48 */
49 GLenum BaseFormat;
50
51 /**
52 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
53 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
54 */
55 GLenum DataType;
56
57 GLubyte RedBits;
58 GLubyte GreenBits;
59 GLubyte BlueBits;
60 GLubyte AlphaBits;
61 GLubyte LuminanceBits;
62 GLubyte IntensityBits;
63 GLubyte IndexBits;
64 GLubyte DepthBits;
65 GLubyte StencilBits;
66
67 /**
68 * To describe compressed formats. If not compressed, Width=Height=1.
69 */
70 GLubyte BlockWidth, BlockHeight;
71 GLubyte BytesPerBlock;
72 };
73
74
75 /**
76 * Info about each format.
77 * These must be in the same order as the MESA_FORMAT_* enums so that
78 * we can do lookups without searching.
79 */
80 static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
81 {
82 {
83 MESA_FORMAT_NONE, /* Name */
84 "MESA_FORMAT_NONE", /* StrName */
85 GL_NONE, /* BaseFormat */
86 GL_NONE, /* DataType */
87 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
88 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
89 0, 0, 0 /* BlockWidth/Height,Bytes */
90 },
91 {
92 MESA_FORMAT_RGBA8888, /* Name */
93 "MESA_FORMAT_RGBA8888", /* StrName */
94 GL_RGBA, /* BaseFormat */
95 GL_UNSIGNED_NORMALIZED, /* DataType */
96 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
97 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
98 1, 1, 4 /* BlockWidth/Height,Bytes */
99 },
100 {
101 MESA_FORMAT_RGBA8888_REV, /* Name */
102 "MESA_FORMAT_RGBA8888_REV", /* StrName */
103 GL_RGBA, /* BaseFormat */
104 GL_UNSIGNED_NORMALIZED, /* DataType */
105 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
106 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
107 1, 1, 4 /* BlockWidth/Height,Bytes */
108 },
109 {
110 MESA_FORMAT_ARGB8888, /* Name */
111 "MESA_FORMAT_ARGB8888", /* StrName */
112 GL_RGBA, /* BaseFormat */
113 GL_UNSIGNED_NORMALIZED, /* DataType */
114 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
115 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
116 1, 1, 4 /* BlockWidth/Height,Bytes */
117 },
118 {
119 MESA_FORMAT_ARGB8888_REV, /* Name */
120 "MESA_FORMAT_ARGB8888_REV", /* StrName */
121 GL_RGBA, /* BaseFormat */
122 GL_UNSIGNED_NORMALIZED, /* DataType */
123 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
124 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
125 1, 1, 4 /* BlockWidth/Height,Bytes */
126 },
127 {
128 MESA_FORMAT_RGBX8888, /* Name */
129 "MESA_FORMAT_RGBX8888", /* StrName */
130 GL_RGB, /* BaseFormat */
131 GL_UNSIGNED_NORMALIZED, /* DataType */
132 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
133 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
134 1, 1, 4 /* BlockWidth/Height,Bytes */
135 },
136 {
137 MESA_FORMAT_RGBX8888_REV, /* Name */
138 "MESA_FORMAT_RGBX8888_REV", /* StrName */
139 GL_RGB, /* BaseFormat */
140 GL_UNSIGNED_NORMALIZED, /* DataType */
141 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
142 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
143 1, 1, 4 /* BlockWidth/Height,Bytes */
144 },
145 {
146 MESA_FORMAT_XRGB8888, /* Name */
147 "MESA_FORMAT_XRGB8888", /* StrName */
148 GL_RGB, /* BaseFormat */
149 GL_UNSIGNED_NORMALIZED, /* DataType */
150 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
151 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
152 1, 1, 4 /* BlockWidth/Height,Bytes */
153 },
154 {
155 MESA_FORMAT_XRGB8888_REV, /* Name */
156 "MESA_FORMAT_XRGB8888_REV", /* StrName */
157 GL_RGB, /* BaseFormat */
158 GL_UNSIGNED_NORMALIZED, /* DataType */
159 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
160 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
161 1, 1, 4 /* BlockWidth/Height,Bytes */
162 },
163 {
164 MESA_FORMAT_RGB888, /* Name */
165 "MESA_FORMAT_RGB888", /* StrName */
166 GL_RGB, /* BaseFormat */
167 GL_UNSIGNED_NORMALIZED, /* DataType */
168 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
169 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
170 1, 1, 3 /* BlockWidth/Height,Bytes */
171 },
172 {
173 MESA_FORMAT_BGR888, /* Name */
174 "MESA_FORMAT_BGR888", /* StrName */
175 GL_RGB, /* BaseFormat */
176 GL_UNSIGNED_NORMALIZED, /* DataType */
177 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
178 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
179 1, 1, 3 /* BlockWidth/Height,Bytes */
180 },
181 {
182 MESA_FORMAT_RGB565, /* Name */
183 "MESA_FORMAT_RGB565", /* StrName */
184 GL_RGB, /* BaseFormat */
185 GL_UNSIGNED_NORMALIZED, /* DataType */
186 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
187 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
188 1, 1, 2 /* BlockWidth/Height,Bytes */
189 },
190 {
191 MESA_FORMAT_RGB565_REV, /* Name */
192 "MESA_FORMAT_RGB565_REV", /* StrName */
193 GL_RGB, /* BaseFormat */
194 GL_UNSIGNED_NORMALIZED, /* DataType */
195 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
196 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
197 1, 1, 2 /* BlockWidth/Height,Bytes */
198 },
199 {
200 MESA_FORMAT_ARGB4444, /* Name */
201 "MESA_FORMAT_ARGB4444", /* StrName */
202 GL_RGBA, /* BaseFormat */
203 GL_UNSIGNED_NORMALIZED, /* DataType */
204 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
205 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
206 1, 1, 2 /* BlockWidth/Height,Bytes */
207 },
208 {
209 MESA_FORMAT_ARGB4444_REV, /* Name */
210 "MESA_FORMAT_ARGB4444_REV", /* StrName */
211 GL_RGBA, /* BaseFormat */
212 GL_UNSIGNED_NORMALIZED, /* DataType */
213 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
214 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
215 1, 1, 2 /* BlockWidth/Height,Bytes */
216 },
217 {
218 MESA_FORMAT_RGBA5551, /* Name */
219 "MESA_FORMAT_RGBA5551", /* StrName */
220 GL_RGBA, /* BaseFormat */
221 GL_UNSIGNED_NORMALIZED, /* DataType */
222 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
223 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
224 1, 1, 2 /* BlockWidth/Height,Bytes */
225 },
226 {
227 MESA_FORMAT_ARGB1555, /* Name */
228 "MESA_FORMAT_ARGB1555", /* StrName */
229 GL_RGBA, /* BaseFormat */
230 GL_UNSIGNED_NORMALIZED, /* DataType */
231 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
232 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
233 1, 1, 2 /* BlockWidth/Height,Bytes */
234 },
235 {
236 MESA_FORMAT_ARGB1555_REV, /* Name */
237 "MESA_FORMAT_ARGB1555_REV", /* StrName */
238 GL_RGBA, /* BaseFormat */
239 GL_UNSIGNED_NORMALIZED, /* DataType */
240 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
241 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
242 1, 1, 2 /* BlockWidth/Height,Bytes */
243 },
244 {
245 MESA_FORMAT_AL44, /* Name */
246 "MESA_FORMAT_AL44", /* StrName */
247 GL_LUMINANCE_ALPHA, /* BaseFormat */
248 GL_UNSIGNED_NORMALIZED, /* DataType */
249 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
250 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
251 1, 1, 1 /* BlockWidth/Height,Bytes */
252 },
253 {
254 MESA_FORMAT_AL88, /* Name */
255 "MESA_FORMAT_AL88", /* StrName */
256 GL_LUMINANCE_ALPHA, /* BaseFormat */
257 GL_UNSIGNED_NORMALIZED, /* DataType */
258 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
259 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
260 1, 1, 2 /* BlockWidth/Height,Bytes */
261 },
262 {
263 MESA_FORMAT_AL88_REV, /* Name */
264 "MESA_FORMAT_AL88_REV", /* StrName */
265 GL_LUMINANCE_ALPHA, /* BaseFormat */
266 GL_UNSIGNED_NORMALIZED, /* DataType */
267 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
268 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
269 1, 1, 2 /* BlockWidth/Height,Bytes */
270 },
271 {
272 MESA_FORMAT_AL1616, /* Name */
273 "MESA_FORMAT_AL1616", /* StrName */
274 GL_LUMINANCE_ALPHA, /* BaseFormat */
275 GL_UNSIGNED_NORMALIZED, /* DataType */
276 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
277 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
278 1, 1, 4 /* BlockWidth/Height,Bytes */
279 },
280 {
281 MESA_FORMAT_AL1616_REV, /* Name */
282 "MESA_FORMAT_AL1616_REV", /* StrName */
283 GL_LUMINANCE_ALPHA, /* BaseFormat */
284 GL_UNSIGNED_NORMALIZED, /* DataType */
285 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
286 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
287 1, 1, 4 /* BlockWidth/Height,Bytes */
288 },
289 {
290 MESA_FORMAT_RGB332, /* Name */
291 "MESA_FORMAT_RGB332", /* StrName */
292 GL_RGB, /* BaseFormat */
293 GL_UNSIGNED_NORMALIZED, /* DataType */
294 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
295 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
296 1, 1, 1 /* BlockWidth/Height,Bytes */
297 },
298 {
299 MESA_FORMAT_A8, /* Name */
300 "MESA_FORMAT_A8", /* StrName */
301 GL_ALPHA, /* BaseFormat */
302 GL_UNSIGNED_NORMALIZED, /* DataType */
303 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
304 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
305 1, 1, 1 /* BlockWidth/Height,Bytes */
306 },
307 {
308 MESA_FORMAT_A16, /* Name */
309 "MESA_FORMAT_A16", /* StrName */
310 GL_ALPHA, /* BaseFormat */
311 GL_UNSIGNED_NORMALIZED, /* DataType */
312 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
313 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
314 1, 1, 2 /* BlockWidth/Height,Bytes */
315 },
316 {
317 MESA_FORMAT_L8, /* Name */
318 "MESA_FORMAT_L8", /* StrName */
319 GL_LUMINANCE, /* BaseFormat */
320 GL_UNSIGNED_NORMALIZED, /* DataType */
321 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
322 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
323 1, 1, 1 /* BlockWidth/Height,Bytes */
324 },
325 {
326 MESA_FORMAT_L16, /* Name */
327 "MESA_FORMAT_L16", /* StrName */
328 GL_LUMINANCE, /* BaseFormat */
329 GL_UNSIGNED_NORMALIZED, /* DataType */
330 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
331 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
332 1, 1, 2 /* BlockWidth/Height,Bytes */
333 },
334 {
335 MESA_FORMAT_I8, /* Name */
336 "MESA_FORMAT_I8", /* StrName */
337 GL_INTENSITY, /* BaseFormat */
338 GL_UNSIGNED_NORMALIZED, /* DataType */
339 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
340 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
341 1, 1, 1 /* BlockWidth/Height,Bytes */
342 },
343 {
344 MESA_FORMAT_I16, /* Name */
345 "MESA_FORMAT_I16", /* StrName */
346 GL_INTENSITY, /* BaseFormat */
347 GL_UNSIGNED_NORMALIZED, /* DataType */
348 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
349 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
350 1, 1, 2 /* BlockWidth/Height,Bytes */
351 },
352 {
353 MESA_FORMAT_YCBCR, /* Name */
354 "MESA_FORMAT_YCBCR", /* StrName */
355 GL_YCBCR_MESA, /* BaseFormat */
356 GL_UNSIGNED_NORMALIZED, /* DataType */
357 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
358 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
359 1, 1, 2 /* BlockWidth/Height,Bytes */
360 },
361 {
362 MESA_FORMAT_YCBCR_REV, /* Name */
363 "MESA_FORMAT_YCBCR_REV", /* StrName */
364 GL_YCBCR_MESA, /* BaseFormat */
365 GL_UNSIGNED_NORMALIZED, /* DataType */
366 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
367 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
368 1, 1, 2 /* BlockWidth/Height,Bytes */
369 },
370 {
371 MESA_FORMAT_R8,
372 "MESA_FORMAT_R8",
373 GL_RED,
374 GL_UNSIGNED_NORMALIZED,
375 8, 0, 0, 0,
376 0, 0, 0, 0, 0,
377 1, 1, 1
378 },
379 {
380 MESA_FORMAT_GR88,
381 "MESA_FORMAT_GR88",
382 GL_RG,
383 GL_UNSIGNED_NORMALIZED,
384 8, 8, 0, 0,
385 0, 0, 0, 0, 0,
386 1, 1, 2
387 },
388 {
389 MESA_FORMAT_RG88,
390 "MESA_FORMAT_RG88",
391 GL_RG,
392 GL_UNSIGNED_NORMALIZED,
393 8, 8, 0, 0,
394 0, 0, 0, 0, 0,
395 1, 1, 2
396 },
397 {
398 MESA_FORMAT_R16,
399 "MESA_FORMAT_R16",
400 GL_RED,
401 GL_UNSIGNED_NORMALIZED,
402 16, 0, 0, 0,
403 0, 0, 0, 0, 0,
404 1, 1, 2
405 },
406 {
407 MESA_FORMAT_RG1616,
408 "MESA_FORMAT_RG1616",
409 GL_RG,
410 GL_UNSIGNED_NORMALIZED,
411 16, 16, 0, 0,
412 0, 0, 0, 0, 0,
413 1, 1, 4
414 },
415 {
416 MESA_FORMAT_RG1616_REV,
417 "MESA_FORMAT_RG1616_REV",
418 GL_RG,
419 GL_UNSIGNED_NORMALIZED,
420 16, 16, 0, 0,
421 0, 0, 0, 0, 0,
422 1, 1, 4
423 },
424 {
425 MESA_FORMAT_ARGB2101010,
426 "MESA_FORMAT_ARGB2101010",
427 GL_RGBA,
428 GL_UNSIGNED_NORMALIZED,
429 10, 10, 10, 2,
430 0, 0, 0, 0, 0,
431 1, 1, 4
432 },
433 {
434 MESA_FORMAT_Z24_S8, /* Name */
435 "MESA_FORMAT_Z24_S8", /* StrName */
436 GL_DEPTH_STENCIL, /* BaseFormat */
437 GL_UNSIGNED_NORMALIZED, /* DataType */
438 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
439 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
440 1, 1, 4 /* BlockWidth/Height,Bytes */
441 },
442 {
443 MESA_FORMAT_S8_Z24, /* Name */
444 "MESA_FORMAT_S8_Z24", /* StrName */
445 GL_DEPTH_STENCIL, /* BaseFormat */
446 GL_UNSIGNED_NORMALIZED, /* DataType */
447 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
448 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
449 1, 1, 4 /* BlockWidth/Height,Bytes */
450 },
451 {
452 MESA_FORMAT_Z16, /* Name */
453 "MESA_FORMAT_Z16", /* StrName */
454 GL_DEPTH_COMPONENT, /* BaseFormat */
455 GL_UNSIGNED_NORMALIZED, /* DataType */
456 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
457 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
458 1, 1, 2 /* BlockWidth/Height,Bytes */
459 },
460 {
461 MESA_FORMAT_X8_Z24, /* Name */
462 "MESA_FORMAT_X8_Z24", /* StrName */
463 GL_DEPTH_COMPONENT, /* BaseFormat */
464 GL_UNSIGNED_NORMALIZED, /* DataType */
465 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
466 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
467 1, 1, 4 /* BlockWidth/Height,Bytes */
468 },
469 {
470 MESA_FORMAT_Z24_X8, /* Name */
471 "MESA_FORMAT_Z24_X8", /* StrName */
472 GL_DEPTH_COMPONENT, /* BaseFormat */
473 GL_UNSIGNED_NORMALIZED, /* DataType */
474 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
475 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
476 1, 1, 4 /* BlockWidth/Height,Bytes */
477 },
478 {
479 MESA_FORMAT_Z32, /* Name */
480 "MESA_FORMAT_Z32", /* StrName */
481 GL_DEPTH_COMPONENT, /* BaseFormat */
482 GL_UNSIGNED_NORMALIZED, /* DataType */
483 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
484 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
485 1, 1, 4 /* BlockWidth/Height,Bytes */
486 },
487 {
488 MESA_FORMAT_S8, /* Name */
489 "MESA_FORMAT_S8", /* StrName */
490 GL_STENCIL_INDEX, /* BaseFormat */
491 GL_UNSIGNED_INT, /* DataType */
492 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
493 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
494 1, 1, 1 /* BlockWidth/Height,Bytes */
495 },
496 {
497 MESA_FORMAT_SRGB8,
498 "MESA_FORMAT_SRGB8",
499 GL_RGB,
500 GL_UNSIGNED_NORMALIZED,
501 8, 8, 8, 0,
502 0, 0, 0, 0, 0,
503 1, 1, 3
504 },
505 {
506 MESA_FORMAT_SRGBA8,
507 "MESA_FORMAT_SRGBA8",
508 GL_RGBA,
509 GL_UNSIGNED_NORMALIZED,
510 8, 8, 8, 8,
511 0, 0, 0, 0, 0,
512 1, 1, 4
513 },
514 {
515 MESA_FORMAT_SARGB8,
516 "MESA_FORMAT_SARGB8",
517 GL_RGBA,
518 GL_UNSIGNED_NORMALIZED,
519 8, 8, 8, 8,
520 0, 0, 0, 0, 0,
521 1, 1, 4
522 },
523 {
524 MESA_FORMAT_SL8,
525 "MESA_FORMAT_SL8",
526 GL_LUMINANCE,
527 GL_UNSIGNED_NORMALIZED,
528 0, 0, 0, 0,
529 8, 0, 0, 0, 0,
530 1, 1, 1
531 },
532 {
533 MESA_FORMAT_SLA8,
534 "MESA_FORMAT_SLA8",
535 GL_LUMINANCE_ALPHA,
536 GL_UNSIGNED_NORMALIZED,
537 0, 0, 0, 8,
538 8, 0, 0, 0, 0,
539 1, 1, 2
540 },
541 {
542 MESA_FORMAT_SRGB_DXT1, /* Name */
543 "MESA_FORMAT_SRGB_DXT1", /* StrName */
544 GL_RGB, /* BaseFormat */
545 GL_UNSIGNED_NORMALIZED, /* DataType */
546 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
547 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
548 4, 4, 8 /* 8 bytes per 4x4 block */
549 },
550 {
551 MESA_FORMAT_SRGBA_DXT1,
552 "MESA_FORMAT_SRGBA_DXT1",
553 GL_RGBA,
554 GL_UNSIGNED_NORMALIZED,
555 4, 4, 4, 4,
556 0, 0, 0, 0, 0,
557 4, 4, 8 /* 8 bytes per 4x4 block */
558 },
559 {
560 MESA_FORMAT_SRGBA_DXT3,
561 "MESA_FORMAT_SRGBA_DXT3",
562 GL_RGBA,
563 GL_UNSIGNED_NORMALIZED,
564 4, 4, 4, 4,
565 0, 0, 0, 0, 0,
566 4, 4, 16 /* 16 bytes per 4x4 block */
567 },
568 {
569 MESA_FORMAT_SRGBA_DXT5,
570 "MESA_FORMAT_SRGBA_DXT5",
571 GL_RGBA,
572 GL_UNSIGNED_NORMALIZED,
573 4, 4, 4, 4,
574 0, 0, 0, 0, 0,
575 4, 4, 16 /* 16 bytes per 4x4 block */
576 },
577
578 {
579 MESA_FORMAT_RGB_FXT1,
580 "MESA_FORMAT_RGB_FXT1",
581 GL_RGB,
582 GL_UNSIGNED_NORMALIZED,
583 4, 4, 4, 0, /* approx Red/Green/BlueBits */
584 0, 0, 0, 0, 0,
585 8, 4, 16 /* 16 bytes per 8x4 block */
586 },
587 {
588 MESA_FORMAT_RGBA_FXT1,
589 "MESA_FORMAT_RGBA_FXT1",
590 GL_RGBA,
591 GL_UNSIGNED_NORMALIZED,
592 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
593 0, 0, 0, 0, 0,
594 8, 4, 16 /* 16 bytes per 8x4 block */
595 },
596
597 {
598 MESA_FORMAT_RGB_DXT1, /* Name */
599 "MESA_FORMAT_RGB_DXT1", /* StrName */
600 GL_RGB, /* BaseFormat */
601 GL_UNSIGNED_NORMALIZED, /* DataType */
602 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
603 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
604 4, 4, 8 /* 8 bytes per 4x4 block */
605 },
606 {
607 MESA_FORMAT_RGBA_DXT1,
608 "MESA_FORMAT_RGBA_DXT1",
609 GL_RGBA,
610 GL_UNSIGNED_NORMALIZED,
611 4, 4, 4, 4,
612 0, 0, 0, 0, 0,
613 4, 4, 8 /* 8 bytes per 4x4 block */
614 },
615 {
616 MESA_FORMAT_RGBA_DXT3,
617 "MESA_FORMAT_RGBA_DXT3",
618 GL_RGBA,
619 GL_UNSIGNED_NORMALIZED,
620 4, 4, 4, 4,
621 0, 0, 0, 0, 0,
622 4, 4, 16 /* 16 bytes per 4x4 block */
623 },
624 {
625 MESA_FORMAT_RGBA_DXT5,
626 "MESA_FORMAT_RGBA_DXT5",
627 GL_RGBA,
628 GL_UNSIGNED_NORMALIZED,
629 4, 4, 4, 4,
630 0, 0, 0, 0, 0,
631 4, 4, 16 /* 16 bytes per 4x4 block */
632 },
633 {
634 MESA_FORMAT_RGBA_FLOAT32,
635 "MESA_FORMAT_RGBA_FLOAT32",
636 GL_RGBA,
637 GL_FLOAT,
638 32, 32, 32, 32,
639 0, 0, 0, 0, 0,
640 1, 1, 16
641 },
642 {
643 MESA_FORMAT_RGBA_FLOAT16,
644 "MESA_FORMAT_RGBA_FLOAT16",
645 GL_RGBA,
646 GL_FLOAT,
647 16, 16, 16, 16,
648 0, 0, 0, 0, 0,
649 1, 1, 8
650 },
651 {
652 MESA_FORMAT_RGB_FLOAT32,
653 "MESA_FORMAT_RGB_FLOAT32",
654 GL_RGB,
655 GL_FLOAT,
656 32, 32, 32, 0,
657 0, 0, 0, 0, 0,
658 1, 1, 12
659 },
660 {
661 MESA_FORMAT_RGB_FLOAT16,
662 "MESA_FORMAT_RGB_FLOAT16",
663 GL_RGB,
664 GL_FLOAT,
665 16, 16, 16, 0,
666 0, 0, 0, 0, 0,
667 1, 1, 6
668 },
669 {
670 MESA_FORMAT_ALPHA_FLOAT32,
671 "MESA_FORMAT_ALPHA_FLOAT32",
672 GL_ALPHA,
673 GL_FLOAT,
674 0, 0, 0, 32,
675 0, 0, 0, 0, 0,
676 1, 1, 4
677 },
678 {
679 MESA_FORMAT_ALPHA_FLOAT16,
680 "MESA_FORMAT_ALPHA_FLOAT16",
681 GL_ALPHA,
682 GL_FLOAT,
683 0, 0, 0, 16,
684 0, 0, 0, 0, 0,
685 1, 1, 2
686 },
687 {
688 MESA_FORMAT_LUMINANCE_FLOAT32,
689 "MESA_FORMAT_LUMINANCE_FLOAT32",
690 GL_LUMINANCE,
691 GL_FLOAT,
692 0, 0, 0, 0,
693 32, 0, 0, 0, 0,
694 1, 1, 4
695 },
696 {
697 MESA_FORMAT_LUMINANCE_FLOAT16,
698 "MESA_FORMAT_LUMINANCE_FLOAT16",
699 GL_LUMINANCE,
700 GL_FLOAT,
701 0, 0, 0, 0,
702 16, 0, 0, 0, 0,
703 1, 1, 2
704 },
705 {
706 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
707 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
708 GL_LUMINANCE_ALPHA,
709 GL_FLOAT,
710 0, 0, 0, 32,
711 32, 0, 0, 0, 0,
712 1, 1, 8
713 },
714 {
715 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
716 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
717 GL_LUMINANCE_ALPHA,
718 GL_FLOAT,
719 0, 0, 0, 16,
720 16, 0, 0, 0, 0,
721 1, 1, 4
722 },
723 {
724 MESA_FORMAT_INTENSITY_FLOAT32,
725 "MESA_FORMAT_INTENSITY_FLOAT32",
726 GL_INTENSITY,
727 GL_FLOAT,
728 0, 0, 0, 0,
729 0, 32, 0, 0, 0,
730 1, 1, 4
731 },
732 {
733 MESA_FORMAT_INTENSITY_FLOAT16,
734 "MESA_FORMAT_INTENSITY_FLOAT16",
735 GL_INTENSITY,
736 GL_FLOAT,
737 0, 0, 0, 0,
738 0, 16, 0, 0, 0,
739 1, 1, 2
740 },
741 {
742 MESA_FORMAT_R_FLOAT32,
743 "MESA_FORMAT_R_FLOAT32",
744 GL_RED,
745 GL_FLOAT,
746 32, 0, 0, 0,
747 0, 0, 0, 0, 0,
748 1, 1, 4
749 },
750 {
751 MESA_FORMAT_R_FLOAT16,
752 "MESA_FORMAT_R_FLOAT16",
753 GL_RED,
754 GL_FLOAT,
755 16, 0, 0, 0,
756 0, 0, 0, 0, 0,
757 1, 1, 2
758 },
759 {
760 MESA_FORMAT_RG_FLOAT32,
761 "MESA_FORMAT_RG_FLOAT32",
762 GL_RG,
763 GL_FLOAT,
764 32, 32, 0, 0,
765 0, 0, 0, 0, 0,
766 1, 1, 8
767 },
768 {
769 MESA_FORMAT_RG_FLOAT16,
770 "MESA_FORMAT_RG_FLOAT16",
771 GL_RG,
772 GL_FLOAT,
773 16, 16, 0, 0,
774 0, 0, 0, 0, 0,
775 1, 1, 4
776 },
777
778 /* unnormalized signed int formats */
779 /* unnormalized unsigned int formats */
780 {
781 MESA_FORMAT_ALPHA_UINT8,
782 "MESA_FORMAT_ALPHA_UINT8",
783 GL_ALPHA,
784 GL_UNSIGNED_INT,
785 0, 0, 0, 8,
786 0, 0, 0, 0, 0,
787 1, 1, 1
788 },
789 {
790 MESA_FORMAT_ALPHA_UINT16,
791 "MESA_FORMAT_ALPHA_UINT16",
792 GL_ALPHA,
793 GL_UNSIGNED_INT,
794 0, 0, 0, 16,
795 0, 0, 0, 0, 0,
796 1, 1, 2
797 },
798 {
799 MESA_FORMAT_ALPHA_UINT32,
800 "MESA_FORMAT_ALPHA_UINT32",
801 GL_ALPHA,
802 GL_UNSIGNED_INT,
803 0, 0, 0, 32,
804 0, 0, 0, 0, 0,
805 1, 1, 4
806 },
807 {
808 MESA_FORMAT_ALPHA_INT8,
809 "MESA_FORMAT_ALPHA_INT8",
810 GL_ALPHA,
811 GL_INT,
812 0, 0, 0, 8,
813 0, 0, 0, 0, 0,
814 1, 1, 1
815 },
816 {
817 MESA_FORMAT_ALPHA_INT16,
818 "MESA_FORMAT_ALPHA_INT16",
819 GL_ALPHA,
820 GL_INT,
821 0, 0, 0, 16,
822 0, 0, 0, 0, 0,
823 1, 1, 2
824 },
825 {
826 MESA_FORMAT_ALPHA_INT32,
827 "MESA_FORMAT_ALPHA_INT32",
828 GL_ALPHA,
829 GL_INT,
830 0, 0, 0, 32,
831 0, 0, 0, 0, 0,
832 1, 1, 4
833 },
834 {
835 MESA_FORMAT_INTENSITY_UINT8,
836 "MESA_FORMAT_INTENSITY_UINT8",
837 GL_INTENSITY,
838 GL_UNSIGNED_INT,
839 0, 0, 0, 0,
840 0, 8, 0, 0, 0,
841 1, 1, 1
842 },
843 {
844 MESA_FORMAT_INTENSITY_UINT16,
845 "MESA_FORMAT_INTENSITY_UINT16",
846 GL_INTENSITY,
847 GL_UNSIGNED_INT,
848 0, 0, 0, 0,
849 0, 16, 0, 0, 0,
850 1, 1, 2
851 },
852 {
853 MESA_FORMAT_INTENSITY_UINT32,
854 "MESA_FORMAT_INTENSITY_UINT32",
855 GL_INTENSITY,
856 GL_UNSIGNED_INT,
857 0, 0, 0, 0,
858 0, 32, 0, 0, 0,
859 1, 1, 4
860 },
861 {
862 MESA_FORMAT_INTENSITY_INT8,
863 "MESA_FORMAT_INTENSITY_INT8",
864 GL_INTENSITY,
865 GL_INT,
866 0, 0, 0, 0,
867 0, 8, 0, 0, 0,
868 1, 1, 1
869 },
870 {
871 MESA_FORMAT_INTENSITY_INT16,
872 "MESA_FORMAT_INTENSITY_INT16",
873 GL_INTENSITY,
874 GL_INT,
875 0, 0, 0, 0,
876 0, 16, 0, 0, 0,
877 1, 1, 2
878 },
879 {
880 MESA_FORMAT_INTENSITY_INT32,
881 "MESA_FORMAT_INTENSITY_INT32",
882 GL_INTENSITY,
883 GL_INT,
884 0, 0, 0, 0,
885 0, 32, 0, 0, 0,
886 1, 1, 4
887 },
888 {
889 MESA_FORMAT_LUMINANCE_UINT8,
890 "MESA_FORMAT_LUMINANCE_UINT8",
891 GL_LUMINANCE,
892 GL_UNSIGNED_INT,
893 0, 0, 0, 0,
894 8, 0, 0, 0, 0,
895 1, 1, 1
896 },
897 {
898 MESA_FORMAT_LUMINANCE_UINT16,
899 "MESA_FORMAT_LUMINANCE_UINT16",
900 GL_LUMINANCE,
901 GL_UNSIGNED_INT,
902 0, 0, 0, 0,
903 16, 0, 0, 0, 0,
904 1, 1, 2
905 },
906 {
907 MESA_FORMAT_LUMINANCE_UINT32,
908 "MESA_FORMAT_LUMINANCE_UINT32",
909 GL_LUMINANCE,
910 GL_UNSIGNED_INT,
911 0, 0, 0, 0,
912 32, 0, 0, 0, 0,
913 1, 1, 4
914 },
915 {
916 MESA_FORMAT_LUMINANCE_INT8,
917 "MESA_FORMAT_LUMINANCE_INT8",
918 GL_LUMINANCE,
919 GL_INT,
920 0, 0, 0, 0,
921 8, 0, 0, 0, 0,
922 1, 1, 1
923 },
924 {
925 MESA_FORMAT_LUMINANCE_INT16,
926 "MESA_FORMAT_LUMINANCE_INT16",
927 GL_LUMINANCE,
928 GL_INT,
929 0, 0, 0, 0,
930 16, 0, 0, 0, 0,
931 1, 1, 2
932 },
933 {
934 MESA_FORMAT_LUMINANCE_INT32,
935 "MESA_FORMAT_LUMINANCE_INT32",
936 GL_LUMINANCE,
937 GL_INT,
938 0, 0, 0, 0,
939 32, 0, 0, 0, 0,
940 1, 1, 4
941 },
942 {
943 MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
944 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
945 GL_LUMINANCE_ALPHA,
946 GL_UNSIGNED_INT,
947 0, 0, 0, 8,
948 8, 0, 0, 0, 0,
949 1, 1, 2
950 },
951 {
952 MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
953 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
954 GL_LUMINANCE_ALPHA,
955 GL_UNSIGNED_INT,
956 0, 0, 0, 16,
957 16, 0, 0, 0, 0,
958 1, 1, 4
959 },
960 {
961 MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
962 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
963 GL_LUMINANCE_ALPHA,
964 GL_UNSIGNED_INT,
965 0, 0, 0, 32,
966 32, 0, 0, 0, 0,
967 1, 1, 8
968 },
969 {
970 MESA_FORMAT_LUMINANCE_ALPHA_INT8,
971 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
972 GL_LUMINANCE_ALPHA,
973 GL_INT,
974 0, 0, 0, 8,
975 8, 0, 0, 0, 0,
976 1, 1, 2
977 },
978 {
979 MESA_FORMAT_LUMINANCE_ALPHA_INT16,
980 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
981 GL_LUMINANCE_ALPHA,
982 GL_INT,
983 0, 0, 0, 16,
984 16, 0, 0, 0, 0,
985 1, 1, 4
986 },
987 {
988 MESA_FORMAT_LUMINANCE_ALPHA_INT32,
989 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
990 GL_LUMINANCE_ALPHA,
991 GL_INT,
992 0, 0, 0, 32,
993 32, 0, 0, 0, 0,
994 1, 1, 8
995 },
996
997 {
998 MESA_FORMAT_R_INT8,
999 "MESA_FORMAT_R_INT8",
1000 GL_RED,
1001 GL_INT,
1002 8, 0, 0, 0,
1003 0, 0, 0, 0, 0,
1004 1, 1, 1
1005 },
1006 {
1007 MESA_FORMAT_RG_INT8,
1008 "MESA_FORMAT_RG_INT8",
1009 GL_RG,
1010 GL_INT,
1011 8, 8, 0, 0,
1012 0, 0, 0, 0, 0,
1013 1, 1, 2
1014 },
1015 {
1016 MESA_FORMAT_RGB_INT8,
1017 "MESA_FORMAT_RGB_INT8",
1018 GL_RGB,
1019 GL_INT,
1020 8, 8, 8, 0,
1021 0, 0, 0, 0, 0,
1022 1, 1, 3
1023 },
1024 {
1025 MESA_FORMAT_RGBA_INT8,
1026 "MESA_FORMAT_RGBA_INT8",
1027 GL_RGBA,
1028 GL_INT,
1029 8, 8, 8, 8,
1030 0, 0, 0, 0, 0,
1031 1, 1, 4
1032 },
1033 {
1034 MESA_FORMAT_R_INT16,
1035 "MESA_FORMAT_R_INT16",
1036 GL_RED,
1037 GL_INT,
1038 16, 0, 0, 0,
1039 0, 0, 0, 0, 0,
1040 1, 1, 2
1041 },
1042 {
1043 MESA_FORMAT_RG_INT16,
1044 "MESA_FORMAT_RG_INT16",
1045 GL_RG,
1046 GL_INT,
1047 16, 16, 0, 0,
1048 0, 0, 0, 0, 0,
1049 1, 1, 4
1050 },
1051 {
1052 MESA_FORMAT_RGB_INT16,
1053 "MESA_FORMAT_RGB_INT16",
1054 GL_RGB,
1055 GL_INT,
1056 16, 16, 16, 0,
1057 0, 0, 0, 0, 0,
1058 1, 1, 6
1059 },
1060 {
1061 MESA_FORMAT_RGBA_INT16,
1062 "MESA_FORMAT_RGBA_INT16",
1063 GL_RGBA,
1064 GL_INT,
1065 16, 16, 16, 16,
1066 0, 0, 0, 0, 0,
1067 1, 1, 8
1068 },
1069 {
1070 MESA_FORMAT_R_INT32,
1071 "MESA_FORMAT_R_INT32",
1072 GL_RED,
1073 GL_INT,
1074 32, 0, 0, 0,
1075 0, 0, 0, 0, 0,
1076 1, 1, 4
1077 },
1078 {
1079 MESA_FORMAT_RG_INT32,
1080 "MESA_FORMAT_RG_INT32",
1081 GL_RG,
1082 GL_INT,
1083 32, 32, 0, 0,
1084 0, 0, 0, 0, 0,
1085 1, 1, 8
1086 },
1087 {
1088 MESA_FORMAT_RGB_INT32,
1089 "MESA_FORMAT_RGB_INT32",
1090 GL_RGB,
1091 GL_INT,
1092 32, 32, 32, 0,
1093 0, 0, 0, 0, 0,
1094 1, 1, 12
1095 },
1096 {
1097 MESA_FORMAT_RGBA_INT32,
1098 "MESA_FORMAT_RGBA_INT32",
1099 GL_RGBA,
1100 GL_INT,
1101 32, 32, 32, 32,
1102 0, 0, 0, 0, 0,
1103 1, 1, 16
1104 },
1105 {
1106 MESA_FORMAT_R_UINT8,
1107 "MESA_FORMAT_R_UINT8",
1108 GL_RED,
1109 GL_UNSIGNED_INT,
1110 8, 0, 0, 0,
1111 0, 0, 0, 0, 0,
1112 1, 1, 1
1113 },
1114 {
1115 MESA_FORMAT_RG_UINT8,
1116 "MESA_FORMAT_RG_UINT8",
1117 GL_RG,
1118 GL_UNSIGNED_INT,
1119 8, 8, 0, 0,
1120 0, 0, 0, 0, 0,
1121 1, 1, 2
1122 },
1123 {
1124 MESA_FORMAT_RGB_UINT8,
1125 "MESA_FORMAT_RGB_UINT8",
1126 GL_RGB,
1127 GL_UNSIGNED_INT,
1128 8, 8, 8, 0,
1129 0, 0, 0, 0, 0,
1130 1, 1, 3
1131 },
1132 {
1133 MESA_FORMAT_RGBA_UINT8,
1134 "MESA_FORMAT_RGBA_UINT8",
1135 GL_RGBA,
1136 GL_UNSIGNED_INT,
1137 8, 8, 8, 8,
1138 0, 0, 0, 0, 0,
1139 1, 1, 4
1140 },
1141 {
1142 MESA_FORMAT_R_UINT16,
1143 "MESA_FORMAT_R_UINT16",
1144 GL_RED,
1145 GL_UNSIGNED_INT,
1146 16, 0, 0, 0,
1147 0, 0, 0, 0, 0,
1148 1, 1, 2
1149 },
1150 {
1151 MESA_FORMAT_RG_UINT16,
1152 "MESA_FORMAT_RG_UINT16",
1153 GL_RG,
1154 GL_UNSIGNED_INT,
1155 16, 16, 0, 0,
1156 0, 0, 0, 0, 0,
1157 1, 1, 4
1158 },
1159 {
1160 MESA_FORMAT_RGB_UINT16,
1161 "MESA_FORMAT_RGB_UINT16",
1162 GL_RGB,
1163 GL_UNSIGNED_INT,
1164 16, 16, 16, 0,
1165 0, 0, 0, 0, 0,
1166 1, 1, 6
1167 },
1168 {
1169 MESA_FORMAT_RGBA_UINT16,
1170 "MESA_FORMAT_RGBA_UINT16",
1171 GL_RGBA,
1172 GL_UNSIGNED_INT,
1173 16, 16, 16, 16,
1174 0, 0, 0, 0, 0,
1175 1, 1, 8
1176 },
1177 {
1178 MESA_FORMAT_R_UINT32,
1179 "MESA_FORMAT_R_UINT32",
1180 GL_RED,
1181 GL_UNSIGNED_INT,
1182 32, 0, 0, 0,
1183 0, 0, 0, 0, 0,
1184 1, 1, 4
1185 },
1186 {
1187 MESA_FORMAT_RG_UINT32,
1188 "MESA_FORMAT_RG_UINT32",
1189 GL_RG,
1190 GL_UNSIGNED_INT,
1191 32, 32, 0, 0,
1192 0, 0, 0, 0, 0,
1193 1, 1, 8
1194 },
1195 {
1196 MESA_FORMAT_RGB_UINT32,
1197 "MESA_FORMAT_RGB_UINT32",
1198 GL_RGB,
1199 GL_UNSIGNED_INT,
1200 32, 32, 32, 0,
1201 0, 0, 0, 0, 0,
1202 1, 1, 12
1203 },
1204 {
1205 MESA_FORMAT_RGBA_UINT32,
1206 "MESA_FORMAT_RGBA_UINT32",
1207 GL_RGBA,
1208 GL_UNSIGNED_INT,
1209 32, 32, 32, 32,
1210 0, 0, 0, 0, 0,
1211 1, 1, 16
1212 },
1213
1214
1215 {
1216 MESA_FORMAT_DUDV8,
1217 "MESA_FORMAT_DUDV8",
1218 GL_DUDV_ATI,
1219 GL_SIGNED_NORMALIZED,
1220 0, 0, 0, 0,
1221 0, 0, 0, 0, 0,
1222 1, 1, 2
1223 },
1224
1225 /* Signed 8 bits / channel */
1226 {
1227 MESA_FORMAT_SIGNED_R8, /* Name */
1228 "MESA_FORMAT_SIGNED_R8", /* StrName */
1229 GL_RED, /* BaseFormat */
1230 GL_SIGNED_NORMALIZED, /* DataType */
1231 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1232 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1233 1, 1, 1 /* BlockWidth/Height,Bytes */
1234 },
1235 {
1236 MESA_FORMAT_SIGNED_RG88_REV,
1237 "MESA_FORMAT_SIGNED_RG88_REV",
1238 GL_RG,
1239 GL_SIGNED_NORMALIZED,
1240 8, 8, 0, 0,
1241 0, 0, 0, 0, 0,
1242 1, 1, 2
1243 },
1244 {
1245 MESA_FORMAT_SIGNED_RGBX8888,
1246 "MESA_FORMAT_SIGNED_RGBX8888",
1247 GL_RGB,
1248 GL_SIGNED_NORMALIZED,
1249 8, 8, 8, 0,
1250 0, 0, 0, 0, 0,
1251 1, 1, 4 /* 4 bpp, but no alpha */
1252 },
1253 {
1254 MESA_FORMAT_SIGNED_RGBA8888,
1255 "MESA_FORMAT_SIGNED_RGBA8888",
1256 GL_RGBA,
1257 GL_SIGNED_NORMALIZED,
1258 8, 8, 8, 8,
1259 0, 0, 0, 0, 0,
1260 1, 1, 4
1261 },
1262 {
1263 MESA_FORMAT_SIGNED_RGBA8888_REV,
1264 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1265 GL_RGBA,
1266 GL_SIGNED_NORMALIZED,
1267 8, 8, 8, 8,
1268 0, 0, 0, 0, 0,
1269 1, 1, 4
1270 },
1271
1272 /* Signed 16 bits / channel */
1273 {
1274 MESA_FORMAT_SIGNED_R16,
1275 "MESA_FORMAT_SIGNED_R16",
1276 GL_RED,
1277 GL_SIGNED_NORMALIZED,
1278 16, 0, 0, 0,
1279 0, 0, 0, 0, 0,
1280 1, 1, 2
1281 },
1282 {
1283 MESA_FORMAT_SIGNED_GR1616,
1284 "MESA_FORMAT_SIGNED_GR1616",
1285 GL_RG,
1286 GL_SIGNED_NORMALIZED,
1287 16, 16, 0, 0,
1288 0, 0, 0, 0, 0,
1289 1, 1, 4
1290 },
1291 {
1292 MESA_FORMAT_SIGNED_RGB_16,
1293 "MESA_FORMAT_SIGNED_RGB_16",
1294 GL_RGB,
1295 GL_SIGNED_NORMALIZED,
1296 16, 16, 16, 0,
1297 0, 0, 0, 0, 0,
1298 1, 1, 6
1299 },
1300 {
1301 MESA_FORMAT_SIGNED_RGBA_16,
1302 "MESA_FORMAT_SIGNED_RGBA_16",
1303 GL_RGBA,
1304 GL_SIGNED_NORMALIZED,
1305 16, 16, 16, 16,
1306 0, 0, 0, 0, 0,
1307 1, 1, 8
1308 },
1309 {
1310 MESA_FORMAT_RGBA_16,
1311 "MESA_FORMAT_RGBA_16",
1312 GL_RGBA,
1313 GL_UNSIGNED_NORMALIZED,
1314 16, 16, 16, 16,
1315 0, 0, 0, 0, 0,
1316 1, 1, 8
1317 },
1318 {
1319 MESA_FORMAT_RED_RGTC1,
1320 "MESA_FORMAT_RED_RGTC1",
1321 GL_RED,
1322 GL_UNSIGNED_NORMALIZED,
1323 8, 0, 0, 0,
1324 0, 0, 0, 0, 0,
1325 4, 4, 8 /* 8 bytes per 4x4 block */
1326 },
1327 {
1328 MESA_FORMAT_SIGNED_RED_RGTC1,
1329 "MESA_FORMAT_SIGNED_RED_RGTC1",
1330 GL_RED,
1331 GL_SIGNED_NORMALIZED,
1332 8, 0, 0, 0,
1333 0, 0, 0, 0, 0,
1334 4, 4, 8 /* 8 bytes per 4x4 block */
1335 },
1336 {
1337 MESA_FORMAT_RG_RGTC2,
1338 "MESA_FORMAT_RG_RGTC2",
1339 GL_RG,
1340 GL_UNSIGNED_NORMALIZED,
1341 8, 8, 0, 0,
1342 0, 0, 0, 0, 0,
1343 4, 4, 16 /* 16 bytes per 4x4 block */
1344 },
1345 {
1346 MESA_FORMAT_SIGNED_RG_RGTC2,
1347 "MESA_FORMAT_SIGNED_RG_RGTC2",
1348 GL_RG,
1349 GL_SIGNED_NORMALIZED,
1350 8, 8, 0, 0,
1351 0, 0, 0, 0, 0,
1352 4, 4, 16 /* 16 bytes per 4x4 block */
1353 },
1354 {
1355 MESA_FORMAT_L_LATC1,
1356 "MESA_FORMAT_L_LATC1",
1357 GL_LUMINANCE,
1358 GL_UNSIGNED_NORMALIZED,
1359 0, 0, 0, 0,
1360 4, 0, 0, 0, 0,
1361 4, 4, 8 /* 8 bytes per 4x4 block */
1362 },
1363 {
1364 MESA_FORMAT_SIGNED_L_LATC1,
1365 "MESA_FORMAT_SIGNED_L_LATC1",
1366 GL_LUMINANCE,
1367 GL_SIGNED_NORMALIZED,
1368 0, 0, 0, 0,
1369 4, 0, 0, 0, 0,
1370 4, 4, 8 /* 8 bytes per 4x4 block */
1371 },
1372 {
1373 MESA_FORMAT_LA_LATC2,
1374 "MESA_FORMAT_LA_LATC2",
1375 GL_LUMINANCE_ALPHA,
1376 GL_UNSIGNED_NORMALIZED,
1377 0, 0, 0, 4,
1378 4, 0, 0, 0, 0,
1379 4, 4, 16 /* 16 bytes per 4x4 block */
1380 },
1381 {
1382 MESA_FORMAT_SIGNED_LA_LATC2,
1383 "MESA_FORMAT_SIGNED_LA_LATC2",
1384 GL_LUMINANCE_ALPHA,
1385 GL_SIGNED_NORMALIZED,
1386 0, 0, 0, 4,
1387 4, 0, 0, 0, 0,
1388 4, 4, 16 /* 16 bytes per 4x4 block */
1389 },
1390
1391 {
1392 MESA_FORMAT_ETC1_RGB8,
1393 "MESA_FORMAT_ETC1_RGB8",
1394 GL_RGB,
1395 GL_UNSIGNED_NORMALIZED,
1396 8, 8, 8, 0,
1397 0, 0, 0, 0, 0,
1398 4, 4, 8 /* 8 bytes per 4x4 block */
1399 },
1400
1401 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1402 {
1403 MESA_FORMAT_SIGNED_A8,
1404 "MESA_FORMAT_SIGNED_A8",
1405 GL_ALPHA,
1406 GL_SIGNED_NORMALIZED,
1407 0, 0, 0, 8,
1408 0, 0, 0, 0, 0,
1409 1, 1, 1
1410 },
1411 {
1412 MESA_FORMAT_SIGNED_L8,
1413 "MESA_FORMAT_SIGNED_L8",
1414 GL_LUMINANCE,
1415 GL_SIGNED_NORMALIZED,
1416 0, 0, 0, 0,
1417 8, 0, 0, 0, 0,
1418 1, 1, 1
1419 },
1420 {
1421 MESA_FORMAT_SIGNED_AL88,
1422 "MESA_FORMAT_SIGNED_AL88",
1423 GL_LUMINANCE_ALPHA,
1424 GL_SIGNED_NORMALIZED,
1425 0, 0, 0, 8,
1426 8, 0, 0, 0, 0,
1427 1, 1, 2
1428 },
1429 {
1430 MESA_FORMAT_SIGNED_I8,
1431 "MESA_FORMAT_SIGNED_I8",
1432 GL_INTENSITY,
1433 GL_SIGNED_NORMALIZED,
1434 0, 0, 0, 0,
1435 0, 8, 0, 0, 0,
1436 1, 1, 1
1437 },
1438 {
1439 MESA_FORMAT_SIGNED_A16,
1440 "MESA_FORMAT_SIGNED_A16",
1441 GL_ALPHA,
1442 GL_SIGNED_NORMALIZED,
1443 0, 0, 0, 16,
1444 0, 0, 0, 0, 0,
1445 1, 1, 2
1446 },
1447 {
1448 MESA_FORMAT_SIGNED_L16,
1449 "MESA_FORMAT_SIGNED_L16",
1450 GL_LUMINANCE,
1451 GL_SIGNED_NORMALIZED,
1452 0, 0, 0, 0,
1453 16, 0, 0, 0, 0,
1454 1, 1, 2
1455 },
1456 {
1457 MESA_FORMAT_SIGNED_AL1616,
1458 "MESA_FORMAT_SIGNED_AL1616",
1459 GL_LUMINANCE_ALPHA,
1460 GL_SIGNED_NORMALIZED,
1461 0, 0, 0, 16,
1462 16, 0, 0, 0, 0,
1463 1, 1, 4
1464 },
1465 {
1466 MESA_FORMAT_SIGNED_I16,
1467 "MESA_FORMAT_SIGNED_I16",
1468 GL_INTENSITY,
1469 GL_SIGNED_NORMALIZED,
1470 0, 0, 0, 0,
1471 0, 16, 0, 0, 0,
1472 1, 1, 2
1473 },
1474 {
1475 MESA_FORMAT_RGB9_E5_FLOAT,
1476 "MESA_FORMAT_RGB9_E5",
1477 GL_RGB,
1478 GL_FLOAT,
1479 9, 9, 9, 0,
1480 0, 0, 0, 0, 0,
1481 1, 1, 4
1482 },
1483 {
1484 MESA_FORMAT_R11_G11_B10_FLOAT,
1485 "MESA_FORMAT_R11_G11_B10_FLOAT",
1486 GL_RGB,
1487 GL_FLOAT,
1488 11, 11, 10, 0,
1489 0, 0, 0, 0, 0,
1490 1, 1, 4
1491 },
1492 /* ARB_depth_buffer_float */
1493 {
1494 MESA_FORMAT_Z32_FLOAT, /* Name */
1495 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1496 GL_DEPTH_COMPONENT, /* BaseFormat */
1497 GL_FLOAT, /* DataType */
1498 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1499 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1500 1, 1, 4 /* BlockWidth/Height,Bytes */
1501 },
1502 {
1503 MESA_FORMAT_Z32_FLOAT_X24S8, /* Name */
1504 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1505 GL_DEPTH_STENCIL, /* BaseFormat */
1506 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1507 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1508 */
1509 GL_FLOAT, /* DataType */
1510 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1511 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1512 1, 1, 8 /* BlockWidth/Height,Bytes */
1513 },
1514 {
1515 MESA_FORMAT_ARGB2101010_UINT,
1516 "MESA_FORMAT_ARGB2101010_UINT",
1517 GL_RGBA,
1518 GL_UNSIGNED_INT,
1519 10, 10, 10, 2,
1520 0, 0, 0, 0, 0,
1521 1, 1, 4
1522 },
1523 {
1524 MESA_FORMAT_ABGR2101010_UINT,
1525 "MESA_FORMAT_ABGR2101010_UINT",
1526 GL_RGBA,
1527 GL_UNSIGNED_INT,
1528 10, 10, 10, 2,
1529 0, 0, 0, 0, 0,
1530 1, 1, 4
1531 },
1532 };
1533
1534
1535
1536 static const struct gl_format_info *
1537 _mesa_get_format_info(gl_format format)
1538 {
1539 const struct gl_format_info *info = &format_info[format];
1540 assert(info->Name == format);
1541 return info;
1542 }
1543
1544
1545 /** Return string name of format (for debugging) */
1546 const char *
1547 _mesa_get_format_name(gl_format format)
1548 {
1549 const struct gl_format_info *info = _mesa_get_format_info(format);
1550 return info->StrName;
1551 }
1552
1553
1554
1555 /**
1556 * Return bytes needed to store a block of pixels in the given format.
1557 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1558 * a block may be 4x4 or 8x4, etc.
1559 *
1560 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1561 */
1562 GLint
1563 _mesa_get_format_bytes(gl_format format)
1564 {
1565 const struct gl_format_info *info = _mesa_get_format_info(format);
1566 ASSERT(info->BytesPerBlock);
1567 ASSERT(info->BytesPerBlock <= MAX_PIXEL_BYTES ||
1568 _mesa_is_format_compressed(format));
1569 return info->BytesPerBlock;
1570 }
1571
1572
1573 /**
1574 * Return bits per component for the given format.
1575 * \param format one of MESA_FORMAT_x
1576 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1577 */
1578 GLint
1579 _mesa_get_format_bits(gl_format format, GLenum pname)
1580 {
1581 const struct gl_format_info *info = _mesa_get_format_info(format);
1582
1583 switch (pname) {
1584 case GL_RED_BITS:
1585 case GL_TEXTURE_RED_SIZE:
1586 case GL_RENDERBUFFER_RED_SIZE_EXT:
1587 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1588 return info->RedBits;
1589 case GL_GREEN_BITS:
1590 case GL_TEXTURE_GREEN_SIZE:
1591 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1592 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1593 return info->GreenBits;
1594 case GL_BLUE_BITS:
1595 case GL_TEXTURE_BLUE_SIZE:
1596 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1597 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1598 return info->BlueBits;
1599 case GL_ALPHA_BITS:
1600 case GL_TEXTURE_ALPHA_SIZE:
1601 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1602 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1603 return info->AlphaBits;
1604 case GL_TEXTURE_INTENSITY_SIZE:
1605 return info->IntensityBits;
1606 case GL_TEXTURE_LUMINANCE_SIZE:
1607 return info->LuminanceBits;
1608 case GL_INDEX_BITS:
1609 return info->IndexBits;
1610 case GL_DEPTH_BITS:
1611 case GL_TEXTURE_DEPTH_SIZE_ARB:
1612 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1613 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1614 return info->DepthBits;
1615 case GL_STENCIL_BITS:
1616 case GL_TEXTURE_STENCIL_SIZE_EXT:
1617 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1618 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1619 return info->StencilBits;
1620 default:
1621 _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
1622 return 0;
1623 }
1624 }
1625
1626
1627 GLuint
1628 _mesa_get_format_max_bits(gl_format format)
1629 {
1630 const struct gl_format_info *info = _mesa_get_format_info(format);
1631 GLuint max = MAX2(info->RedBits, info->GreenBits);
1632 max = MAX2(max, info->BlueBits);
1633 max = MAX2(max, info->AlphaBits);
1634 max = MAX2(max, info->LuminanceBits);
1635 max = MAX2(max, info->IntensityBits);
1636 max = MAX2(max, info->DepthBits);
1637 max = MAX2(max, info->StencilBits);
1638 return max;
1639 }
1640
1641
1642 /**
1643 * Return the data type (or more specifically, the data representation)
1644 * for the given format.
1645 * The return value will be one of:
1646 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1647 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1648 * GL_UNSIGNED_INT = an ordinary unsigned integer
1649 * GL_INT = an ordinary signed integer
1650 * GL_FLOAT = an ordinary float
1651 */
1652 GLenum
1653 _mesa_get_format_datatype(gl_format format)
1654 {
1655 const struct gl_format_info *info = _mesa_get_format_info(format);
1656 return info->DataType;
1657 }
1658
1659
1660 /**
1661 * Return the basic format for the given type. The result will be one of
1662 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1663 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1664 */
1665 GLenum
1666 _mesa_get_format_base_format(gl_format format)
1667 {
1668 const struct gl_format_info *info = _mesa_get_format_info(format);
1669 return info->BaseFormat;
1670 }
1671
1672
1673 /**
1674 * Return the block size (in pixels) for the given format. Normally
1675 * the block size is 1x1. But compressed formats will have block sizes
1676 * of 4x4 or 8x4 pixels, etc.
1677 * \param bw returns block width in pixels
1678 * \param bh returns block height in pixels
1679 */
1680 void
1681 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1682 {
1683 const struct gl_format_info *info = _mesa_get_format_info(format);
1684 *bw = info->BlockWidth;
1685 *bh = info->BlockHeight;
1686 }
1687
1688
1689 /** Is the given format a compressed format? */
1690 GLboolean
1691 _mesa_is_format_compressed(gl_format format)
1692 {
1693 const struct gl_format_info *info = _mesa_get_format_info(format);
1694 return info->BlockWidth > 1 || info->BlockHeight > 1;
1695 }
1696
1697
1698 /**
1699 * Determine if the given format represents a packed depth/stencil buffer.
1700 */
1701 GLboolean
1702 _mesa_is_format_packed_depth_stencil(gl_format format)
1703 {
1704 const struct gl_format_info *info = _mesa_get_format_info(format);
1705
1706 return info->BaseFormat == GL_DEPTH_STENCIL;
1707 }
1708
1709
1710 /**
1711 * Is the given format a signed/unsigned integer color format?
1712 */
1713 GLboolean
1714 _mesa_is_format_integer_color(gl_format format)
1715 {
1716 const struct gl_format_info *info = _mesa_get_format_info(format);
1717 return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
1718 info->BaseFormat != GL_DEPTH_COMPONENT &&
1719 info->BaseFormat != GL_DEPTH_STENCIL &&
1720 info->BaseFormat != GL_STENCIL_INDEX;
1721 }
1722
1723
1724 /**
1725 * Is the given format an unsigned integer format?
1726 */
1727 GLboolean
1728 _mesa_is_format_unsigned(gl_format format)
1729 {
1730 const struct gl_format_info *info = _mesa_get_format_info(format);
1731 return _mesa_is_type_unsigned(info->DataType);
1732 }
1733
1734
1735 /**
1736 * Return color encoding for given format.
1737 * \return GL_LINEAR or GL_SRGB
1738 */
1739 GLenum
1740 _mesa_get_format_color_encoding(gl_format format)
1741 {
1742 /* XXX this info should be encoded in gl_format_info */
1743 switch (format) {
1744 case MESA_FORMAT_SRGB8:
1745 case MESA_FORMAT_SRGBA8:
1746 case MESA_FORMAT_SARGB8:
1747 case MESA_FORMAT_SL8:
1748 case MESA_FORMAT_SLA8:
1749 case MESA_FORMAT_SRGB_DXT1:
1750 case MESA_FORMAT_SRGBA_DXT1:
1751 case MESA_FORMAT_SRGBA_DXT3:
1752 case MESA_FORMAT_SRGBA_DXT5:
1753 return GL_SRGB;
1754 default:
1755 return GL_LINEAR;
1756 }
1757 }
1758
1759
1760 /**
1761 * For an sRGB format, return the corresponding linear color space format.
1762 * For non-sRGB formats, return the format as-is.
1763 */
1764 gl_format
1765 _mesa_get_srgb_format_linear(gl_format format)
1766 {
1767 switch (format) {
1768 case MESA_FORMAT_SRGB8:
1769 format = MESA_FORMAT_RGB888;
1770 break;
1771 case MESA_FORMAT_SRGBA8:
1772 format = MESA_FORMAT_RGBA8888;
1773 break;
1774 case MESA_FORMAT_SARGB8:
1775 format = MESA_FORMAT_ARGB8888;
1776 break;
1777 case MESA_FORMAT_SL8:
1778 format = MESA_FORMAT_L8;
1779 break;
1780 case MESA_FORMAT_SLA8:
1781 format = MESA_FORMAT_AL88;
1782 break;
1783 case MESA_FORMAT_SRGB_DXT1:
1784 format = MESA_FORMAT_RGB_DXT1;
1785 break;
1786 case MESA_FORMAT_SRGBA_DXT1:
1787 format = MESA_FORMAT_RGBA_DXT1;
1788 break;
1789 case MESA_FORMAT_SRGBA_DXT3:
1790 format = MESA_FORMAT_RGBA_DXT3;
1791 break;
1792 case MESA_FORMAT_SRGBA_DXT5:
1793 format = MESA_FORMAT_RGBA_DXT5;
1794 break;
1795 default:
1796 break;
1797 }
1798 return format;
1799 }
1800
1801
1802 /**
1803 * If the given format is a compressed format, return a corresponding
1804 * uncompressed format.
1805 */
1806 gl_format
1807 _mesa_get_uncompressed_format(gl_format format)
1808 {
1809 switch (format) {
1810 case MESA_FORMAT_RGB_FXT1:
1811 return MESA_FORMAT_RGB888;
1812 case MESA_FORMAT_RGBA_FXT1:
1813 return MESA_FORMAT_RGBA8888;
1814 case MESA_FORMAT_RGB_DXT1:
1815 case MESA_FORMAT_SRGB_DXT1:
1816 return MESA_FORMAT_RGB888;
1817 case MESA_FORMAT_RGBA_DXT1:
1818 case MESA_FORMAT_SRGBA_DXT1:
1819 return MESA_FORMAT_RGBA8888;
1820 case MESA_FORMAT_RGBA_DXT3:
1821 case MESA_FORMAT_SRGBA_DXT3:
1822 return MESA_FORMAT_RGBA8888;
1823 case MESA_FORMAT_RGBA_DXT5:
1824 case MESA_FORMAT_SRGBA_DXT5:
1825 return MESA_FORMAT_RGBA8888;
1826 case MESA_FORMAT_RED_RGTC1:
1827 return MESA_FORMAT_R8;
1828 case MESA_FORMAT_SIGNED_RED_RGTC1:
1829 return MESA_FORMAT_SIGNED_R8;
1830 case MESA_FORMAT_RG_RGTC2:
1831 return MESA_FORMAT_GR88;
1832 case MESA_FORMAT_SIGNED_RG_RGTC2:
1833 return MESA_FORMAT_SIGNED_RG88_REV;
1834 case MESA_FORMAT_L_LATC1:
1835 return MESA_FORMAT_L8;
1836 case MESA_FORMAT_SIGNED_L_LATC1:
1837 return MESA_FORMAT_SIGNED_L8;
1838 case MESA_FORMAT_LA_LATC2:
1839 return MESA_FORMAT_AL88;
1840 case MESA_FORMAT_SIGNED_LA_LATC2:
1841 return MESA_FORMAT_SIGNED_AL88;
1842 case MESA_FORMAT_ETC1_RGB8:
1843 return MESA_FORMAT_RGB888;
1844 default:
1845 #ifdef DEBUG
1846 assert(!_mesa_is_format_compressed(format));
1847 #endif
1848 return format;
1849 }
1850 }
1851
1852
1853 GLuint
1854 _mesa_format_num_components(gl_format format)
1855 {
1856 const struct gl_format_info *info = _mesa_get_format_info(format);
1857 return ((info->RedBits > 0) +
1858 (info->GreenBits > 0) +
1859 (info->BlueBits > 0) +
1860 (info->AlphaBits > 0) +
1861 (info->LuminanceBits > 0) +
1862 (info->IntensityBits > 0) +
1863 (info->DepthBits > 0) +
1864 (info->StencilBits > 0));
1865 }
1866
1867
1868 /**
1869 * Return number of bytes needed to store an image of the given size
1870 * in the given format.
1871 */
1872 GLuint
1873 _mesa_format_image_size(gl_format format, GLsizei width,
1874 GLsizei height, GLsizei depth)
1875 {
1876 const struct gl_format_info *info = _mesa_get_format_info(format);
1877 /* Strictly speaking, a conditional isn't needed here */
1878 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1879 /* compressed format (2D only for now) */
1880 const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
1881 const GLuint wblocks = (width + bw - 1) / bw;
1882 const GLuint hblocks = (height + bh - 1) / bh;
1883 const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
1884 return sz * depth;
1885 }
1886 else {
1887 /* non-compressed */
1888 const GLuint sz = width * height * depth * info->BytesPerBlock;
1889 return sz;
1890 }
1891 }
1892
1893
1894 /**
1895 * Same as _mesa_format_image_size() but returns a 64-bit value to
1896 * accomodate very large textures.
1897 */
1898 uint64_t
1899 _mesa_format_image_size64(gl_format format, GLsizei width,
1900 GLsizei height, GLsizei depth)
1901 {
1902 const struct gl_format_info *info = _mesa_get_format_info(format);
1903 /* Strictly speaking, a conditional isn't needed here */
1904 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1905 /* compressed format (2D only for now) */
1906 const uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
1907 const uint64_t wblocks = (width + bw - 1) / bw;
1908 const uint64_t hblocks = (height + bh - 1) / bh;
1909 const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
1910 return sz * depth;
1911 }
1912 else {
1913 /* non-compressed */
1914 const uint64_t sz = ((uint64_t) width *
1915 (uint64_t) height *
1916 (uint64_t) depth *
1917 info->BytesPerBlock);
1918 return sz;
1919 }
1920 }
1921
1922
1923
1924 GLint
1925 _mesa_format_row_stride(gl_format format, GLsizei width)
1926 {
1927 const struct gl_format_info *info = _mesa_get_format_info(format);
1928 /* Strictly speaking, a conditional isn't needed here */
1929 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1930 /* compressed format */
1931 const GLuint bw = info->BlockWidth;
1932 const GLuint wblocks = (width + bw - 1) / bw;
1933 const GLint stride = wblocks * info->BytesPerBlock;
1934 return stride;
1935 }
1936 else {
1937 const GLint stride = width * info->BytesPerBlock;
1938 return stride;
1939 }
1940 }
1941
1942
1943 /**
1944 * Debug/test: check that all formats are handled in the
1945 * _mesa_format_to_type_and_comps() function. When new pixel formats
1946 * are added to Mesa, that function needs to be updated.
1947 * This is a no-op after the first call.
1948 */
1949 static void
1950 check_format_to_type_and_comps(void)
1951 {
1952 gl_format f;
1953
1954 for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
1955 GLenum datatype = 0;
1956 GLuint comps = 0;
1957 /* This function will emit a problem/warning if the format is
1958 * not handled.
1959 */
1960 _mesa_format_to_type_and_comps(f, &datatype, &comps);
1961 }
1962 }
1963
1964
1965 /**
1966 * Do sanity checking of the format info table.
1967 */
1968 void
1969 _mesa_test_formats(void)
1970 {
1971 GLuint i;
1972
1973 STATIC_ASSERT(Elements(format_info) == MESA_FORMAT_COUNT);
1974
1975 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
1976 const struct gl_format_info *info = _mesa_get_format_info(i);
1977 assert(info);
1978
1979 assert(info->Name == i);
1980
1981 if (info->Name == MESA_FORMAT_NONE)
1982 continue;
1983
1984 if (info->BlockWidth == 1 && info->BlockHeight == 1) {
1985 if (info->RedBits > 0) {
1986 GLuint t = info->RedBits + info->GreenBits
1987 + info->BlueBits + info->AlphaBits;
1988 assert(t / 8 <= info->BytesPerBlock);
1989 (void) t;
1990 }
1991 }
1992
1993 assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
1994 info->DataType == GL_SIGNED_NORMALIZED ||
1995 info->DataType == GL_UNSIGNED_INT ||
1996 info->DataType == GL_INT ||
1997 info->DataType == GL_FLOAT ||
1998 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1999 info->DataType == GL_NONE);
2000
2001 if (info->BaseFormat == GL_RGB) {
2002 assert(info->RedBits > 0);
2003 assert(info->GreenBits > 0);
2004 assert(info->BlueBits > 0);
2005 assert(info->AlphaBits == 0);
2006 assert(info->LuminanceBits == 0);
2007 assert(info->IntensityBits == 0);
2008 }
2009 else if (info->BaseFormat == GL_RGBA) {
2010 assert(info->RedBits > 0);
2011 assert(info->GreenBits > 0);
2012 assert(info->BlueBits > 0);
2013 assert(info->AlphaBits > 0);
2014 assert(info->LuminanceBits == 0);
2015 assert(info->IntensityBits == 0);
2016 }
2017 else if (info->BaseFormat == GL_RG) {
2018 assert(info->RedBits > 0);
2019 assert(info->GreenBits > 0);
2020 assert(info->BlueBits == 0);
2021 assert(info->AlphaBits == 0);
2022 assert(info->LuminanceBits == 0);
2023 assert(info->IntensityBits == 0);
2024 }
2025 else if (info->BaseFormat == GL_RED) {
2026 assert(info->RedBits > 0);
2027 assert(info->GreenBits == 0);
2028 assert(info->BlueBits == 0);
2029 assert(info->AlphaBits == 0);
2030 assert(info->LuminanceBits == 0);
2031 assert(info->IntensityBits == 0);
2032 }
2033 else if (info->BaseFormat == GL_LUMINANCE) {
2034 assert(info->RedBits == 0);
2035 assert(info->GreenBits == 0);
2036 assert(info->BlueBits == 0);
2037 assert(info->AlphaBits == 0);
2038 assert(info->LuminanceBits > 0);
2039 assert(info->IntensityBits == 0);
2040 }
2041 else if (info->BaseFormat == GL_INTENSITY) {
2042 assert(info->RedBits == 0);
2043 assert(info->GreenBits == 0);
2044 assert(info->BlueBits == 0);
2045 assert(info->AlphaBits == 0);
2046 assert(info->LuminanceBits == 0);
2047 assert(info->IntensityBits > 0);
2048 }
2049 }
2050
2051 check_format_to_type_and_comps();
2052 }
2053
2054
2055
2056 /**
2057 * Return datatype and number of components per texel for the given gl_format.
2058 * Only used for mipmap generation code.
2059 */
2060 void
2061 _mesa_format_to_type_and_comps(gl_format format,
2062 GLenum *datatype, GLuint *comps)
2063 {
2064 switch (format) {
2065 case MESA_FORMAT_RGBA8888:
2066 case MESA_FORMAT_RGBA8888_REV:
2067 case MESA_FORMAT_ARGB8888:
2068 case MESA_FORMAT_ARGB8888_REV:
2069 case MESA_FORMAT_RGBX8888:
2070 case MESA_FORMAT_RGBX8888_REV:
2071 case MESA_FORMAT_XRGB8888:
2072 case MESA_FORMAT_XRGB8888_REV:
2073 *datatype = GL_UNSIGNED_BYTE;
2074 *comps = 4;
2075 return;
2076 case MESA_FORMAT_RGB888:
2077 case MESA_FORMAT_BGR888:
2078 *datatype = GL_UNSIGNED_BYTE;
2079 *comps = 3;
2080 return;
2081 case MESA_FORMAT_RGB565:
2082 case MESA_FORMAT_RGB565_REV:
2083 *datatype = GL_UNSIGNED_SHORT_5_6_5;
2084 *comps = 3;
2085 return;
2086
2087 case MESA_FORMAT_ARGB4444:
2088 case MESA_FORMAT_ARGB4444_REV:
2089 *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
2090 *comps = 4;
2091 return;
2092
2093 case MESA_FORMAT_ARGB1555:
2094 case MESA_FORMAT_ARGB1555_REV:
2095 *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2096 *comps = 4;
2097 return;
2098
2099 case MESA_FORMAT_ARGB2101010:
2100 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2101 *comps = 4;
2102 return;
2103
2104 case MESA_FORMAT_RGBA5551:
2105 *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
2106 *comps = 4;
2107 return;
2108
2109 case MESA_FORMAT_AL44:
2110 *datatype = MESA_UNSIGNED_BYTE_4_4;
2111 *comps = 2;
2112 return;
2113
2114 case MESA_FORMAT_AL88:
2115 case MESA_FORMAT_AL88_REV:
2116 case MESA_FORMAT_GR88:
2117 case MESA_FORMAT_RG88:
2118 *datatype = GL_UNSIGNED_BYTE;
2119 *comps = 2;
2120 return;
2121
2122 case MESA_FORMAT_AL1616:
2123 case MESA_FORMAT_AL1616_REV:
2124 case MESA_FORMAT_RG1616:
2125 case MESA_FORMAT_RG1616_REV:
2126 *datatype = GL_UNSIGNED_SHORT;
2127 *comps = 2;
2128 return;
2129
2130 case MESA_FORMAT_R16:
2131 case MESA_FORMAT_A16:
2132 case MESA_FORMAT_L16:
2133 case MESA_FORMAT_I16:
2134 *datatype = GL_UNSIGNED_SHORT;
2135 *comps = 1;
2136 return;
2137
2138 case MESA_FORMAT_RGB332:
2139 *datatype = GL_UNSIGNED_BYTE_3_3_2;
2140 *comps = 3;
2141 return;
2142
2143 case MESA_FORMAT_A8:
2144 case MESA_FORMAT_L8:
2145 case MESA_FORMAT_I8:
2146 case MESA_FORMAT_R8:
2147 case MESA_FORMAT_S8:
2148 *datatype = GL_UNSIGNED_BYTE;
2149 *comps = 1;
2150 return;
2151
2152 case MESA_FORMAT_YCBCR:
2153 case MESA_FORMAT_YCBCR_REV:
2154 *datatype = GL_UNSIGNED_SHORT;
2155 *comps = 2;
2156 return;
2157
2158 case MESA_FORMAT_Z24_S8:
2159 *datatype = GL_UNSIGNED_INT_24_8_MESA;
2160 *comps = 2;
2161 return;
2162
2163 case MESA_FORMAT_S8_Z24:
2164 *datatype = GL_UNSIGNED_INT_8_24_REV_MESA;
2165 *comps = 2;
2166 return;
2167
2168 case MESA_FORMAT_Z16:
2169 *datatype = GL_UNSIGNED_SHORT;
2170 *comps = 1;
2171 return;
2172
2173 case MESA_FORMAT_X8_Z24:
2174 *datatype = GL_UNSIGNED_INT;
2175 *comps = 1;
2176 return;
2177
2178 case MESA_FORMAT_Z24_X8:
2179 *datatype = GL_UNSIGNED_INT;
2180 *comps = 1;
2181 return;
2182
2183 case MESA_FORMAT_Z32:
2184 *datatype = GL_UNSIGNED_INT;
2185 *comps = 1;
2186 return;
2187
2188 case MESA_FORMAT_Z32_FLOAT:
2189 *datatype = GL_FLOAT;
2190 *comps = 1;
2191 return;
2192
2193 case MESA_FORMAT_Z32_FLOAT_X24S8:
2194 *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
2195 *comps = 1;
2196 return;
2197
2198 case MESA_FORMAT_DUDV8:
2199 *datatype = GL_BYTE;
2200 *comps = 2;
2201 return;
2202
2203 case MESA_FORMAT_SIGNED_R8:
2204 case MESA_FORMAT_SIGNED_A8:
2205 case MESA_FORMAT_SIGNED_L8:
2206 case MESA_FORMAT_SIGNED_I8:
2207 *datatype = GL_BYTE;
2208 *comps = 1;
2209 return;
2210 case MESA_FORMAT_SIGNED_RG88_REV:
2211 case MESA_FORMAT_SIGNED_AL88:
2212 *datatype = GL_BYTE;
2213 *comps = 2;
2214 return;
2215 case MESA_FORMAT_SIGNED_RGBA8888:
2216 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2217 case MESA_FORMAT_SIGNED_RGBX8888:
2218 *datatype = GL_BYTE;
2219 *comps = 4;
2220 return;
2221
2222 case MESA_FORMAT_RGBA_16:
2223 *datatype = GL_UNSIGNED_SHORT;
2224 *comps = 4;
2225 return;
2226
2227 case MESA_FORMAT_SIGNED_R16:
2228 case MESA_FORMAT_SIGNED_A16:
2229 case MESA_FORMAT_SIGNED_L16:
2230 case MESA_FORMAT_SIGNED_I16:
2231 *datatype = GL_SHORT;
2232 *comps = 1;
2233 return;
2234 case MESA_FORMAT_SIGNED_GR1616:
2235 case MESA_FORMAT_SIGNED_AL1616:
2236 *datatype = GL_SHORT;
2237 *comps = 2;
2238 return;
2239 case MESA_FORMAT_SIGNED_RGB_16:
2240 *datatype = GL_SHORT;
2241 *comps = 3;
2242 return;
2243 case MESA_FORMAT_SIGNED_RGBA_16:
2244 *datatype = GL_SHORT;
2245 *comps = 4;
2246 return;
2247
2248 #if FEATURE_EXT_texture_sRGB
2249 case MESA_FORMAT_SRGB8:
2250 *datatype = GL_UNSIGNED_BYTE;
2251 *comps = 3;
2252 return;
2253 case MESA_FORMAT_SRGBA8:
2254 case MESA_FORMAT_SARGB8:
2255 *datatype = GL_UNSIGNED_BYTE;
2256 *comps = 4;
2257 return;
2258 case MESA_FORMAT_SL8:
2259 *datatype = GL_UNSIGNED_BYTE;
2260 *comps = 1;
2261 return;
2262 case MESA_FORMAT_SLA8:
2263 *datatype = GL_UNSIGNED_BYTE;
2264 *comps = 2;
2265 return;
2266 #endif
2267
2268 case MESA_FORMAT_RGB_FXT1:
2269 case MESA_FORMAT_RGBA_FXT1:
2270 #if FEATURE_texture_s3tc
2271 case MESA_FORMAT_RGB_DXT1:
2272 case MESA_FORMAT_RGBA_DXT1:
2273 case MESA_FORMAT_RGBA_DXT3:
2274 case MESA_FORMAT_RGBA_DXT5:
2275 #if FEATURE_EXT_texture_sRGB
2276 case MESA_FORMAT_SRGB_DXT1:
2277 case MESA_FORMAT_SRGBA_DXT1:
2278 case MESA_FORMAT_SRGBA_DXT3:
2279 case MESA_FORMAT_SRGBA_DXT5:
2280 #endif
2281 #endif
2282 case MESA_FORMAT_RED_RGTC1:
2283 case MESA_FORMAT_SIGNED_RED_RGTC1:
2284 case MESA_FORMAT_RG_RGTC2:
2285 case MESA_FORMAT_SIGNED_RG_RGTC2:
2286 case MESA_FORMAT_L_LATC1:
2287 case MESA_FORMAT_SIGNED_L_LATC1:
2288 case MESA_FORMAT_LA_LATC2:
2289 case MESA_FORMAT_SIGNED_LA_LATC2:
2290 case MESA_FORMAT_ETC1_RGB8:
2291 /* XXX generate error instead? */
2292 *datatype = GL_UNSIGNED_BYTE;
2293 *comps = 0;
2294 return;
2295
2296 case MESA_FORMAT_RGBA_FLOAT32:
2297 *datatype = GL_FLOAT;
2298 *comps = 4;
2299 return;
2300 case MESA_FORMAT_RGBA_FLOAT16:
2301 *datatype = GL_HALF_FLOAT_ARB;
2302 *comps = 4;
2303 return;
2304 case MESA_FORMAT_RGB_FLOAT32:
2305 *datatype = GL_FLOAT;
2306 *comps = 3;
2307 return;
2308 case MESA_FORMAT_RGB_FLOAT16:
2309 *datatype = GL_HALF_FLOAT_ARB;
2310 *comps = 3;
2311 return;
2312 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2313 case MESA_FORMAT_RG_FLOAT32:
2314 *datatype = GL_FLOAT;
2315 *comps = 2;
2316 return;
2317 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2318 case MESA_FORMAT_RG_FLOAT16:
2319 *datatype = GL_HALF_FLOAT_ARB;
2320 *comps = 2;
2321 return;
2322 case MESA_FORMAT_ALPHA_FLOAT32:
2323 case MESA_FORMAT_LUMINANCE_FLOAT32:
2324 case MESA_FORMAT_INTENSITY_FLOAT32:
2325 case MESA_FORMAT_R_FLOAT32:
2326 *datatype = GL_FLOAT;
2327 *comps = 1;
2328 return;
2329 case MESA_FORMAT_ALPHA_FLOAT16:
2330 case MESA_FORMAT_LUMINANCE_FLOAT16:
2331 case MESA_FORMAT_INTENSITY_FLOAT16:
2332 case MESA_FORMAT_R_FLOAT16:
2333 *datatype = GL_HALF_FLOAT_ARB;
2334 *comps = 1;
2335 return;
2336
2337 case MESA_FORMAT_ALPHA_UINT8:
2338 case MESA_FORMAT_LUMINANCE_UINT8:
2339 case MESA_FORMAT_INTENSITY_UINT8:
2340 *datatype = GL_UNSIGNED_BYTE;
2341 *comps = 1;
2342 return;
2343 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2344 *datatype = GL_UNSIGNED_BYTE;
2345 *comps = 2;
2346 return;
2347
2348 case MESA_FORMAT_ALPHA_UINT16:
2349 case MESA_FORMAT_LUMINANCE_UINT16:
2350 case MESA_FORMAT_INTENSITY_UINT16:
2351 *datatype = GL_UNSIGNED_SHORT;
2352 *comps = 1;
2353 return;
2354 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2355 *datatype = GL_UNSIGNED_SHORT;
2356 *comps = 2;
2357 return;
2358 case MESA_FORMAT_ALPHA_UINT32:
2359 case MESA_FORMAT_LUMINANCE_UINT32:
2360 case MESA_FORMAT_INTENSITY_UINT32:
2361 *datatype = GL_UNSIGNED_INT;
2362 *comps = 1;
2363 return;
2364 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2365 *datatype = GL_UNSIGNED_INT;
2366 *comps = 2;
2367 return;
2368 case MESA_FORMAT_ALPHA_INT8:
2369 case MESA_FORMAT_LUMINANCE_INT8:
2370 case MESA_FORMAT_INTENSITY_INT8:
2371 *datatype = GL_BYTE;
2372 *comps = 1;
2373 return;
2374 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2375 *datatype = GL_BYTE;
2376 *comps = 2;
2377 return;
2378
2379 case MESA_FORMAT_ALPHA_INT16:
2380 case MESA_FORMAT_LUMINANCE_INT16:
2381 case MESA_FORMAT_INTENSITY_INT16:
2382 *datatype = GL_SHORT;
2383 *comps = 1;
2384 return;
2385 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2386 *datatype = GL_SHORT;
2387 *comps = 2;
2388 return;
2389
2390 case MESA_FORMAT_ALPHA_INT32:
2391 case MESA_FORMAT_LUMINANCE_INT32:
2392 case MESA_FORMAT_INTENSITY_INT32:
2393 *datatype = GL_INT;
2394 *comps = 1;
2395 return;
2396 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2397 *datatype = GL_INT;
2398 *comps = 2;
2399 return;
2400
2401 case MESA_FORMAT_R_INT8:
2402 *datatype = GL_BYTE;
2403 *comps = 1;
2404 return;
2405 case MESA_FORMAT_RG_INT8:
2406 *datatype = GL_BYTE;
2407 *comps = 2;
2408 return;
2409 case MESA_FORMAT_RGB_INT8:
2410 *datatype = GL_BYTE;
2411 *comps = 3;
2412 return;
2413 case MESA_FORMAT_RGBA_INT8:
2414 *datatype = GL_BYTE;
2415 *comps = 4;
2416 return;
2417 case MESA_FORMAT_R_INT16:
2418 *datatype = GL_SHORT;
2419 *comps = 1;
2420 return;
2421 case MESA_FORMAT_RG_INT16:
2422 *datatype = GL_SHORT;
2423 *comps = 2;
2424 return;
2425 case MESA_FORMAT_RGB_INT16:
2426 *datatype = GL_SHORT;
2427 *comps = 3;
2428 return;
2429 case MESA_FORMAT_RGBA_INT16:
2430 *datatype = GL_SHORT;
2431 *comps = 4;
2432 return;
2433 case MESA_FORMAT_R_INT32:
2434 *datatype = GL_INT;
2435 *comps = 1;
2436 return;
2437 case MESA_FORMAT_RG_INT32:
2438 *datatype = GL_INT;
2439 *comps = 2;
2440 return;
2441 case MESA_FORMAT_RGB_INT32:
2442 *datatype = GL_INT;
2443 *comps = 3;
2444 return;
2445 case MESA_FORMAT_RGBA_INT32:
2446 *datatype = GL_INT;
2447 *comps = 4;
2448 return;
2449
2450 /**
2451 * \name Non-normalized unsigned integer formats.
2452 */
2453 case MESA_FORMAT_R_UINT8:
2454 *datatype = GL_UNSIGNED_BYTE;
2455 *comps = 1;
2456 return;
2457 case MESA_FORMAT_RG_UINT8:
2458 *datatype = GL_UNSIGNED_BYTE;
2459 *comps = 2;
2460 return;
2461 case MESA_FORMAT_RGB_UINT8:
2462 *datatype = GL_UNSIGNED_BYTE;
2463 *comps = 3;
2464 return;
2465 case MESA_FORMAT_RGBA_UINT8:
2466 *datatype = GL_UNSIGNED_BYTE;
2467 *comps = 4;
2468 return;
2469 case MESA_FORMAT_R_UINT16:
2470 *datatype = GL_UNSIGNED_SHORT;
2471 *comps = 1;
2472 return;
2473 case MESA_FORMAT_RG_UINT16:
2474 *datatype = GL_UNSIGNED_SHORT;
2475 *comps = 2;
2476 return;
2477 case MESA_FORMAT_RGB_UINT16:
2478 *datatype = GL_UNSIGNED_SHORT;
2479 *comps = 3;
2480 return;
2481 case MESA_FORMAT_RGBA_UINT16:
2482 *datatype = GL_UNSIGNED_SHORT;
2483 *comps = 4;
2484 return;
2485 case MESA_FORMAT_R_UINT32:
2486 *datatype = GL_UNSIGNED_INT;
2487 *comps = 1;
2488 return;
2489 case MESA_FORMAT_RG_UINT32:
2490 *datatype = GL_UNSIGNED_INT;
2491 *comps = 2;
2492 return;
2493 case MESA_FORMAT_RGB_UINT32:
2494 *datatype = GL_UNSIGNED_INT;
2495 *comps = 3;
2496 return;
2497 case MESA_FORMAT_RGBA_UINT32:
2498 *datatype = GL_UNSIGNED_INT;
2499 *comps = 4;
2500 return;
2501
2502 case MESA_FORMAT_RGB9_E5_FLOAT:
2503 *datatype = GL_UNSIGNED_INT_5_9_9_9_REV;
2504 *comps = 3;
2505 return;
2506
2507 case MESA_FORMAT_R11_G11_B10_FLOAT:
2508 *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV;
2509 *comps = 3;
2510 return;
2511
2512 case MESA_FORMAT_ARGB2101010_UINT:
2513 case MESA_FORMAT_ABGR2101010_UINT:
2514 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2515 *comps = 4;
2516 return;
2517
2518 case MESA_FORMAT_COUNT:
2519 assert(0);
2520 return;
2521
2522 case MESA_FORMAT_NONE:
2523 /* For debug builds, warn if any formats are not handled */
2524 #ifdef DEBUG
2525 default:
2526 #endif
2527 _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2528 _mesa_get_format_name(format));
2529 *datatype = 0;
2530 *comps = 1;
2531 }
2532 }
2533
2534 /**
2535 * Check if a gl_format exactly matches a GL formaat/type combination
2536 * such that we can use memcpy() from one to the other.
2537 * \param gl_format a MESA_FORMAT_x value
2538 * \param format the user-specified image format
2539 * \param type the user-specified image datatype
2540 * \param swapBytes typically the current pixel pack/unpack byteswap state
2541 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2542 */
2543 GLboolean
2544 _mesa_format_matches_format_and_type(gl_format gl_format,
2545 GLenum format, GLenum type,
2546 GLboolean swapBytes)
2547 {
2548 const GLboolean littleEndian = _mesa_little_endian();
2549
2550 /* Note: When reading a GL format/type combination, the format lists channel
2551 * assignments from most significant channel in the type to least
2552 * significant. A type with _REV indicates that the assignments are
2553 * swapped, so they are listed from least significant to most significant.
2554 *
2555 * For sanity, please keep this switch statement ordered the same as the
2556 * enums in formats.h.
2557 */
2558
2559 switch (gl_format) {
2560
2561 case MESA_FORMAT_NONE:
2562 case MESA_FORMAT_COUNT:
2563 return GL_FALSE;
2564
2565 case MESA_FORMAT_RGBA8888:
2566 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2567 return GL_TRUE;
2568
2569 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV && swapBytes)
2570 return GL_TRUE;
2571
2572 if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && !littleEndian)
2573 return GL_TRUE;
2574
2575 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV
2576 && !swapBytes)
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_BYTE && littleEndian)
2584 return GL_TRUE;
2585
2586 return GL_FALSE;
2587
2588 case MESA_FORMAT_RGBA8888_REV:
2589 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2590 !swapBytes)
2591 return GL_TRUE;
2592
2593 if (format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2594 return GL_TRUE;
2595
2596 if (format == GL_RGBA && type == GL_UNSIGNED_BYTE && littleEndian)
2597 return GL_TRUE;
2598
2599 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8 &&
2600 !swapBytes)
2601 return GL_TRUE;
2602
2603 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2604 swapBytes)
2605 return GL_TRUE;
2606
2607 if (format == GL_ABGR_EXT && type == GL_UNSIGNED_BYTE && !littleEndian)
2608 return GL_TRUE;
2609
2610 return GL_FALSE;
2611
2612 case MESA_FORMAT_ARGB8888:
2613 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2614 !swapBytes)
2615 return GL_TRUE;
2616
2617 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && swapBytes)
2618 return GL_TRUE;
2619
2620 if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && littleEndian)
2621 return GL_TRUE;
2622
2623 return GL_FALSE;
2624
2625 case MESA_FORMAT_ARGB8888_REV:
2626 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8 && !swapBytes)
2627 return GL_TRUE;
2628
2629 if (format == GL_BGRA && type == GL_UNSIGNED_INT_8_8_8_8_REV &&
2630 swapBytes)
2631 return GL_TRUE;
2632
2633 if (format == GL_BGRA && type == GL_UNSIGNED_BYTE && !littleEndian)
2634 return GL_TRUE;
2635
2636 return GL_FALSE;
2637
2638 case MESA_FORMAT_RGBX8888:
2639 case MESA_FORMAT_RGBX8888_REV:
2640 return GL_FALSE;
2641
2642 case MESA_FORMAT_XRGB8888:
2643 case MESA_FORMAT_XRGB8888_REV:
2644 return GL_FALSE;
2645
2646 case MESA_FORMAT_RGB888:
2647 return format == GL_BGR && type == GL_UNSIGNED_BYTE && littleEndian;
2648
2649 case MESA_FORMAT_BGR888:
2650 return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2651
2652 case MESA_FORMAT_RGB565:
2653 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5 && !swapBytes;
2654
2655 case MESA_FORMAT_RGB565_REV:
2656 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2657 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2658 * according to formats.h, so they can't be matched.
2659 */
2660 return GL_FALSE;
2661
2662 case MESA_FORMAT_ARGB4444:
2663 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV &&
2664 !swapBytes;
2665
2666 case MESA_FORMAT_ARGB4444_REV:
2667 return GL_FALSE;
2668
2669 case MESA_FORMAT_RGBA5551:
2670 return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1 &&
2671 !swapBytes;
2672
2673 case MESA_FORMAT_ARGB1555:
2674 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV &&
2675 !swapBytes;
2676
2677 case MESA_FORMAT_ARGB1555_REV:
2678 return GL_FALSE;
2679
2680 case MESA_FORMAT_AL44:
2681 return GL_FALSE;
2682 case MESA_FORMAT_AL88:
2683 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2684 case MESA_FORMAT_AL88_REV:
2685 return GL_FALSE;
2686
2687 case MESA_FORMAT_AL1616:
2688 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian && !swapBytes;
2689 case MESA_FORMAT_AL1616_REV:
2690 return GL_FALSE;
2691
2692 case MESA_FORMAT_RGB332:
2693 return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2694
2695 case MESA_FORMAT_A8:
2696 return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2697 case MESA_FORMAT_A16:
2698 return format == GL_ALPHA && type == GL_UNSIGNED_SHORT &&
2699 littleEndian && !swapBytes;
2700 case MESA_FORMAT_L8:
2701 return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2702 case MESA_FORMAT_L16:
2703 return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT &&
2704 littleEndian && !swapBytes;
2705 case MESA_FORMAT_I8:
2706 return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2707 case MESA_FORMAT_I16:
2708 return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT &&
2709 littleEndian && !swapBytes;
2710
2711 case MESA_FORMAT_YCBCR:
2712 case MESA_FORMAT_YCBCR_REV:
2713 return GL_FALSE;
2714
2715 case MESA_FORMAT_R8:
2716 return format == GL_RED && type == GL_UNSIGNED_BYTE;
2717 case MESA_FORMAT_GR88:
2718 return format == GL_RG && type == GL_UNSIGNED_BYTE && littleEndian;
2719 case MESA_FORMAT_RG88:
2720 return GL_FALSE;
2721
2722 case MESA_FORMAT_R16:
2723 return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian &&
2724 !swapBytes;
2725 case MESA_FORMAT_RG1616:
2726 return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian &&
2727 !swapBytes;
2728 case MESA_FORMAT_RG1616_REV:
2729 return GL_FALSE;
2730
2731 case MESA_FORMAT_ARGB2101010:
2732 return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2733 !swapBytes;
2734
2735 case MESA_FORMAT_Z24_S8:
2736 return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8 &&
2737 !swapBytes;
2738 case MESA_FORMAT_Z24_X8:
2739 case MESA_FORMAT_S8_Z24:
2740 return GL_FALSE;
2741
2742 case MESA_FORMAT_Z16:
2743 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT &&
2744 !swapBytes;
2745
2746 case MESA_FORMAT_X8_Z24:
2747 return GL_FALSE;
2748
2749 case MESA_FORMAT_Z32:
2750 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT &&
2751 !swapBytes;
2752
2753 case MESA_FORMAT_S8:
2754 return format == GL_STENCIL_INDEX && type == GL_UNSIGNED_BYTE;
2755
2756 case MESA_FORMAT_SRGB8:
2757 case MESA_FORMAT_SRGBA8:
2758 case MESA_FORMAT_SARGB8:
2759 case MESA_FORMAT_SL8:
2760 case MESA_FORMAT_SLA8:
2761 case MESA_FORMAT_SRGB_DXT1:
2762 case MESA_FORMAT_SRGBA_DXT1:
2763 case MESA_FORMAT_SRGBA_DXT3:
2764 case MESA_FORMAT_SRGBA_DXT5:
2765 return GL_FALSE;
2766
2767 case MESA_FORMAT_RGB_FXT1:
2768 case MESA_FORMAT_RGBA_FXT1:
2769 case MESA_FORMAT_RGB_DXT1:
2770 case MESA_FORMAT_RGBA_DXT1:
2771 case MESA_FORMAT_RGBA_DXT3:
2772 case MESA_FORMAT_RGBA_DXT5:
2773 return GL_FALSE;
2774
2775 case MESA_FORMAT_RGBA_FLOAT32:
2776 return format == GL_RGBA && type == GL_FLOAT && !swapBytes;
2777 case MESA_FORMAT_RGBA_FLOAT16:
2778 return format == GL_RGBA && type == GL_HALF_FLOAT && !swapBytes;
2779
2780 case MESA_FORMAT_RGB_FLOAT32:
2781 return format == GL_RGB && type == GL_FLOAT && !swapBytes;
2782 case MESA_FORMAT_RGB_FLOAT16:
2783 return format == GL_RGB && type == GL_HALF_FLOAT && !swapBytes;
2784
2785 case MESA_FORMAT_ALPHA_FLOAT32:
2786 return format == GL_ALPHA && type == GL_FLOAT && !swapBytes;
2787 case MESA_FORMAT_ALPHA_FLOAT16:
2788 return format == GL_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2789
2790 case MESA_FORMAT_LUMINANCE_FLOAT32:
2791 return format == GL_LUMINANCE && type == GL_FLOAT && !swapBytes;
2792 case MESA_FORMAT_LUMINANCE_FLOAT16:
2793 return format == GL_LUMINANCE && type == GL_HALF_FLOAT && !swapBytes;
2794
2795 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2796 return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT && !swapBytes;
2797 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2798 return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT && !swapBytes;
2799
2800 case MESA_FORMAT_INTENSITY_FLOAT32:
2801 return format == GL_INTENSITY && type == GL_FLOAT && !swapBytes;
2802 case MESA_FORMAT_INTENSITY_FLOAT16:
2803 return format == GL_INTENSITY && type == GL_HALF_FLOAT && !swapBytes;
2804
2805 case MESA_FORMAT_R_FLOAT32:
2806 return format == GL_RED && type == GL_FLOAT && !swapBytes;
2807 case MESA_FORMAT_R_FLOAT16:
2808 return format == GL_RED && type == GL_HALF_FLOAT && !swapBytes;
2809
2810 case MESA_FORMAT_RG_FLOAT32:
2811 return format == GL_RG && type == GL_FLOAT && !swapBytes;
2812 case MESA_FORMAT_RG_FLOAT16:
2813 return format == GL_RG && type == GL_HALF_FLOAT && !swapBytes;
2814
2815 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2816 case MESA_FORMAT_ALPHA_UINT8:
2817 case MESA_FORMAT_ALPHA_UINT16:
2818 case MESA_FORMAT_ALPHA_UINT32:
2819 case MESA_FORMAT_ALPHA_INT8:
2820 case MESA_FORMAT_ALPHA_INT16:
2821 case MESA_FORMAT_ALPHA_INT32:
2822 return GL_FALSE;
2823
2824 case MESA_FORMAT_INTENSITY_UINT8:
2825 case MESA_FORMAT_INTENSITY_UINT16:
2826 case MESA_FORMAT_INTENSITY_UINT32:
2827 case MESA_FORMAT_INTENSITY_INT8:
2828 case MESA_FORMAT_INTENSITY_INT16:
2829 case MESA_FORMAT_INTENSITY_INT32:
2830 return GL_FALSE;
2831
2832 case MESA_FORMAT_LUMINANCE_UINT8:
2833 case MESA_FORMAT_LUMINANCE_UINT16:
2834 case MESA_FORMAT_LUMINANCE_UINT32:
2835 case MESA_FORMAT_LUMINANCE_INT8:
2836 case MESA_FORMAT_LUMINANCE_INT16:
2837 case MESA_FORMAT_LUMINANCE_INT32:
2838 return GL_FALSE;
2839
2840 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2841 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2842 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2843 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2844 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2845 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2846 return GL_FALSE;
2847
2848 case MESA_FORMAT_R_INT8:
2849 case MESA_FORMAT_RG_INT8:
2850 case MESA_FORMAT_RGB_INT8:
2851 case MESA_FORMAT_RGBA_INT8:
2852 case MESA_FORMAT_R_INT16:
2853 case MESA_FORMAT_RG_INT16:
2854 case MESA_FORMAT_RGB_INT16:
2855 case MESA_FORMAT_RGBA_INT16:
2856 case MESA_FORMAT_R_INT32:
2857 case MESA_FORMAT_RG_INT32:
2858 case MESA_FORMAT_RGB_INT32:
2859 case MESA_FORMAT_RGBA_INT32:
2860 return GL_FALSE;
2861
2862 case MESA_FORMAT_R_UINT8:
2863 case MESA_FORMAT_RG_UINT8:
2864 case MESA_FORMAT_RGB_UINT8:
2865 case MESA_FORMAT_RGBA_UINT8:
2866 case MESA_FORMAT_R_UINT16:
2867 case MESA_FORMAT_RG_UINT16:
2868 case MESA_FORMAT_RGB_UINT16:
2869 case MESA_FORMAT_RGBA_UINT16:
2870 case MESA_FORMAT_R_UINT32:
2871 case MESA_FORMAT_RG_UINT32:
2872 case MESA_FORMAT_RGB_UINT32:
2873 case MESA_FORMAT_RGBA_UINT32:
2874 return GL_FALSE;
2875
2876 case MESA_FORMAT_DUDV8:
2877 case MESA_FORMAT_SIGNED_R8:
2878 case MESA_FORMAT_SIGNED_RG88_REV:
2879 case MESA_FORMAT_SIGNED_RGBX8888:
2880 return GL_FALSE;
2881
2882 case MESA_FORMAT_SIGNED_RGBA8888:
2883 if (format == GL_RGBA && type == GL_BYTE && !littleEndian)
2884 return GL_TRUE;
2885
2886 if (format == GL_ABGR_EXT && type == GL_BYTE && littleEndian)
2887 return GL_TRUE;
2888
2889 return GL_FALSE;
2890
2891 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2892 if (format == GL_RGBA && type == GL_BYTE && littleEndian)
2893 return GL_TRUE;
2894
2895 if (format == GL_ABGR_EXT && type == GL_BYTE && !littleEndian)
2896 return GL_TRUE;
2897
2898 return GL_FALSE;
2899
2900 case MESA_FORMAT_SIGNED_R16:
2901 case MESA_FORMAT_SIGNED_GR1616:
2902 case MESA_FORMAT_SIGNED_RGB_16:
2903 case MESA_FORMAT_SIGNED_RGBA_16:
2904 case MESA_FORMAT_RGBA_16:
2905 /* FINISHME: SNORM */
2906 return GL_FALSE;
2907
2908 case MESA_FORMAT_RED_RGTC1:
2909 case MESA_FORMAT_SIGNED_RED_RGTC1:
2910 case MESA_FORMAT_RG_RGTC2:
2911 case MESA_FORMAT_SIGNED_RG_RGTC2:
2912 return GL_FALSE;
2913
2914 case MESA_FORMAT_L_LATC1:
2915 case MESA_FORMAT_SIGNED_L_LATC1:
2916 case MESA_FORMAT_LA_LATC2:
2917 case MESA_FORMAT_SIGNED_LA_LATC2:
2918 return GL_FALSE;
2919
2920 case MESA_FORMAT_ETC1_RGB8:
2921 return GL_FALSE;
2922
2923 case MESA_FORMAT_SIGNED_A8:
2924 case MESA_FORMAT_SIGNED_L8:
2925 case MESA_FORMAT_SIGNED_AL88:
2926 case MESA_FORMAT_SIGNED_I8:
2927 case MESA_FORMAT_SIGNED_A16:
2928 case MESA_FORMAT_SIGNED_L16:
2929 case MESA_FORMAT_SIGNED_AL1616:
2930 case MESA_FORMAT_SIGNED_I16:
2931 /* FINISHME: SNORM */
2932 return GL_FALSE;
2933
2934 case MESA_FORMAT_ARGB2101010_UINT:
2935 return (format == GL_BGRA_INTEGER_EXT &&
2936 type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2937 !swapBytes);
2938
2939 case MESA_FORMAT_ABGR2101010_UINT:
2940 return (format == GL_RGBA_INTEGER_EXT &&
2941 type == GL_UNSIGNED_INT_2_10_10_10_REV &&
2942 !swapBytes);
2943
2944 case MESA_FORMAT_RGB9_E5_FLOAT:
2945 return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV &&
2946 !swapBytes;
2947
2948 case MESA_FORMAT_R11_G11_B10_FLOAT:
2949 return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV &&
2950 !swapBytes;
2951
2952 case MESA_FORMAT_Z32_FLOAT:
2953 return format == GL_DEPTH_COMPONENT && type == GL_FLOAT && !swapBytes;
2954
2955 case MESA_FORMAT_Z32_FLOAT_X24S8:
2956 return GL_FALSE;
2957 }
2958
2959 return GL_FALSE;
2960 }
2961