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mesa/format: add mesa MESA_FORMAT_ARGB2101010_UINT support.
[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
31
32 /**
33 * Information about texture formats.
34 */
35 struct gl_format_info
36 {
37 gl_format Name;
38
39 /** text name for debugging */
40 const char *StrName;
41
42 /**
43 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
44 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
45 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL, GL_DUDV_ATI.
46 */
47 GLenum BaseFormat;
48
49 /**
50 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
51 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
52 */
53 GLenum DataType;
54
55 GLubyte RedBits;
56 GLubyte GreenBits;
57 GLubyte BlueBits;
58 GLubyte AlphaBits;
59 GLubyte LuminanceBits;
60 GLubyte IntensityBits;
61 GLubyte IndexBits;
62 GLubyte DepthBits;
63 GLubyte StencilBits;
64
65 /**
66 * To describe compressed formats. If not compressed, Width=Height=1.
67 */
68 GLubyte BlockWidth, BlockHeight;
69 GLubyte BytesPerBlock;
70 };
71
72
73 /**
74 * Info about each format.
75 * These must be in the same order as the MESA_FORMAT_* enums so that
76 * we can do lookups without searching.
77 */
78 static struct gl_format_info format_info[MESA_FORMAT_COUNT] =
79 {
80 {
81 MESA_FORMAT_NONE, /* Name */
82 "MESA_FORMAT_NONE", /* StrName */
83 GL_NONE, /* BaseFormat */
84 GL_NONE, /* DataType */
85 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
86 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
87 0, 0, 0 /* BlockWidth/Height,Bytes */
88 },
89 {
90 MESA_FORMAT_RGBA8888, /* Name */
91 "MESA_FORMAT_RGBA8888", /* StrName */
92 GL_RGBA, /* BaseFormat */
93 GL_UNSIGNED_NORMALIZED, /* DataType */
94 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
95 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
96 1, 1, 4 /* BlockWidth/Height,Bytes */
97 },
98 {
99 MESA_FORMAT_RGBA8888_REV, /* Name */
100 "MESA_FORMAT_RGBA8888_REV", /* StrName */
101 GL_RGBA, /* BaseFormat */
102 GL_UNSIGNED_NORMALIZED, /* DataType */
103 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
104 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
105 1, 1, 4 /* BlockWidth/Height,Bytes */
106 },
107 {
108 MESA_FORMAT_ARGB8888, /* Name */
109 "MESA_FORMAT_ARGB8888", /* StrName */
110 GL_RGBA, /* BaseFormat */
111 GL_UNSIGNED_NORMALIZED, /* DataType */
112 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
113 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
114 1, 1, 4 /* BlockWidth/Height,Bytes */
115 },
116 {
117 MESA_FORMAT_ARGB8888_REV, /* Name */
118 "MESA_FORMAT_ARGB8888_REV", /* StrName */
119 GL_RGBA, /* BaseFormat */
120 GL_UNSIGNED_NORMALIZED, /* DataType */
121 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
122 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
123 1, 1, 4 /* BlockWidth/Height,Bytes */
124 },
125 {
126 MESA_FORMAT_RGBX8888, /* Name */
127 "MESA_FORMAT_RGBX8888", /* StrName */
128 GL_RGB, /* BaseFormat */
129 GL_UNSIGNED_NORMALIZED, /* DataType */
130 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
131 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
132 1, 1, 4 /* BlockWidth/Height,Bytes */
133 },
134 {
135 MESA_FORMAT_RGBX8888_REV, /* Name */
136 "MESA_FORMAT_RGBX8888_REV", /* StrName */
137 GL_RGB, /* BaseFormat */
138 GL_UNSIGNED_NORMALIZED, /* DataType */
139 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
140 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
141 1, 1, 4 /* BlockWidth/Height,Bytes */
142 },
143 {
144 MESA_FORMAT_XRGB8888, /* Name */
145 "MESA_FORMAT_XRGB8888", /* StrName */
146 GL_RGB, /* BaseFormat */
147 GL_UNSIGNED_NORMALIZED, /* DataType */
148 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
149 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
150 1, 1, 4 /* BlockWidth/Height,Bytes */
151 },
152 {
153 MESA_FORMAT_XRGB8888_REV, /* Name */
154 "MESA_FORMAT_XRGB8888_REV", /* StrName */
155 GL_RGB, /* BaseFormat */
156 GL_UNSIGNED_NORMALIZED, /* DataType */
157 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
158 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
159 1, 1, 4 /* BlockWidth/Height,Bytes */
160 },
161 {
162 MESA_FORMAT_RGB888, /* Name */
163 "MESA_FORMAT_RGB888", /* StrName */
164 GL_RGB, /* BaseFormat */
165 GL_UNSIGNED_NORMALIZED, /* DataType */
166 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
167 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
168 1, 1, 3 /* BlockWidth/Height,Bytes */
169 },
170 {
171 MESA_FORMAT_BGR888, /* Name */
172 "MESA_FORMAT_BGR888", /* StrName */
173 GL_RGB, /* BaseFormat */
174 GL_UNSIGNED_NORMALIZED, /* DataType */
175 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
176 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
177 1, 1, 3 /* BlockWidth/Height,Bytes */
178 },
179 {
180 MESA_FORMAT_RGB565, /* Name */
181 "MESA_FORMAT_RGB565", /* StrName */
182 GL_RGB, /* BaseFormat */
183 GL_UNSIGNED_NORMALIZED, /* DataType */
184 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
185 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
186 1, 1, 2 /* BlockWidth/Height,Bytes */
187 },
188 {
189 MESA_FORMAT_RGB565_REV, /* Name */
190 "MESA_FORMAT_RGB565_REV", /* StrName */
191 GL_RGB, /* BaseFormat */
192 GL_UNSIGNED_NORMALIZED, /* DataType */
193 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
194 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
195 1, 1, 2 /* BlockWidth/Height,Bytes */
196 },
197 {
198 MESA_FORMAT_ARGB4444, /* Name */
199 "MESA_FORMAT_ARGB4444", /* StrName */
200 GL_RGBA, /* BaseFormat */
201 GL_UNSIGNED_NORMALIZED, /* DataType */
202 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
203 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
204 1, 1, 2 /* BlockWidth/Height,Bytes */
205 },
206 {
207 MESA_FORMAT_ARGB4444_REV, /* Name */
208 "MESA_FORMAT_ARGB4444_REV", /* StrName */
209 GL_RGBA, /* BaseFormat */
210 GL_UNSIGNED_NORMALIZED, /* DataType */
211 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
212 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
213 1, 1, 2 /* BlockWidth/Height,Bytes */
214 },
215 {
216 MESA_FORMAT_RGBA5551, /* Name */
217 "MESA_FORMAT_RGBA5551", /* StrName */
218 GL_RGBA, /* BaseFormat */
219 GL_UNSIGNED_NORMALIZED, /* DataType */
220 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
221 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
222 1, 1, 2 /* BlockWidth/Height,Bytes */
223 },
224 {
225 MESA_FORMAT_ARGB1555, /* Name */
226 "MESA_FORMAT_ARGB1555", /* StrName */
227 GL_RGBA, /* BaseFormat */
228 GL_UNSIGNED_NORMALIZED, /* DataType */
229 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
230 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
231 1, 1, 2 /* BlockWidth/Height,Bytes */
232 },
233 {
234 MESA_FORMAT_ARGB1555_REV, /* Name */
235 "MESA_FORMAT_ARGB1555_REV", /* StrName */
236 GL_RGBA, /* BaseFormat */
237 GL_UNSIGNED_NORMALIZED, /* DataType */
238 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
239 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
240 1, 1, 2 /* BlockWidth/Height,Bytes */
241 },
242 {
243 MESA_FORMAT_AL44, /* Name */
244 "MESA_FORMAT_AL44", /* StrName */
245 GL_LUMINANCE_ALPHA, /* BaseFormat */
246 GL_UNSIGNED_NORMALIZED, /* DataType */
247 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
248 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
249 1, 1, 1 /* BlockWidth/Height,Bytes */
250 },
251 {
252 MESA_FORMAT_AL88, /* Name */
253 "MESA_FORMAT_AL88", /* StrName */
254 GL_LUMINANCE_ALPHA, /* BaseFormat */
255 GL_UNSIGNED_NORMALIZED, /* DataType */
256 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
257 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
258 1, 1, 2 /* BlockWidth/Height,Bytes */
259 },
260 {
261 MESA_FORMAT_AL88_REV, /* Name */
262 "MESA_FORMAT_AL88_REV", /* StrName */
263 GL_LUMINANCE_ALPHA, /* BaseFormat */
264 GL_UNSIGNED_NORMALIZED, /* DataType */
265 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
266 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
267 1, 1, 2 /* BlockWidth/Height,Bytes */
268 },
269 {
270 MESA_FORMAT_AL1616, /* Name */
271 "MESA_FORMAT_AL1616", /* StrName */
272 GL_LUMINANCE_ALPHA, /* BaseFormat */
273 GL_UNSIGNED_NORMALIZED, /* DataType */
274 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
275 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
276 1, 1, 4 /* BlockWidth/Height,Bytes */
277 },
278 {
279 MESA_FORMAT_AL1616_REV, /* Name */
280 "MESA_FORMAT_AL1616_REV", /* StrName */
281 GL_LUMINANCE_ALPHA, /* BaseFormat */
282 GL_UNSIGNED_NORMALIZED, /* DataType */
283 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
284 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
285 1, 1, 4 /* BlockWidth/Height,Bytes */
286 },
287 {
288 MESA_FORMAT_RGB332, /* Name */
289 "MESA_FORMAT_RGB332", /* StrName */
290 GL_RGB, /* BaseFormat */
291 GL_UNSIGNED_NORMALIZED, /* DataType */
292 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
293 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
294 1, 1, 1 /* BlockWidth/Height,Bytes */
295 },
296 {
297 MESA_FORMAT_A8, /* Name */
298 "MESA_FORMAT_A8", /* StrName */
299 GL_ALPHA, /* BaseFormat */
300 GL_UNSIGNED_NORMALIZED, /* DataType */
301 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
302 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
303 1, 1, 1 /* BlockWidth/Height,Bytes */
304 },
305 {
306 MESA_FORMAT_A16, /* Name */
307 "MESA_FORMAT_A16", /* StrName */
308 GL_ALPHA, /* BaseFormat */
309 GL_UNSIGNED_NORMALIZED, /* DataType */
310 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
311 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
312 1, 1, 2 /* BlockWidth/Height,Bytes */
313 },
314 {
315 MESA_FORMAT_L8, /* Name */
316 "MESA_FORMAT_L8", /* StrName */
317 GL_LUMINANCE, /* BaseFormat */
318 GL_UNSIGNED_NORMALIZED, /* DataType */
319 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
320 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
321 1, 1, 1 /* BlockWidth/Height,Bytes */
322 },
323 {
324 MESA_FORMAT_L16, /* Name */
325 "MESA_FORMAT_L16", /* StrName */
326 GL_LUMINANCE, /* BaseFormat */
327 GL_UNSIGNED_NORMALIZED, /* DataType */
328 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
329 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
330 1, 1, 2 /* BlockWidth/Height,Bytes */
331 },
332 {
333 MESA_FORMAT_I8, /* Name */
334 "MESA_FORMAT_I8", /* StrName */
335 GL_INTENSITY, /* BaseFormat */
336 GL_UNSIGNED_NORMALIZED, /* DataType */
337 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
338 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
339 1, 1, 1 /* BlockWidth/Height,Bytes */
340 },
341 {
342 MESA_FORMAT_I16, /* Name */
343 "MESA_FORMAT_I16", /* StrName */
344 GL_INTENSITY, /* BaseFormat */
345 GL_UNSIGNED_NORMALIZED, /* DataType */
346 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
347 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
348 1, 1, 2 /* BlockWidth/Height,Bytes */
349 },
350 {
351 MESA_FORMAT_YCBCR, /* Name */
352 "MESA_FORMAT_YCBCR", /* StrName */
353 GL_YCBCR_MESA, /* BaseFormat */
354 GL_UNSIGNED_NORMALIZED, /* DataType */
355 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
356 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
357 1, 1, 2 /* BlockWidth/Height,Bytes */
358 },
359 {
360 MESA_FORMAT_YCBCR_REV, /* Name */
361 "MESA_FORMAT_YCBCR_REV", /* StrName */
362 GL_YCBCR_MESA, /* BaseFormat */
363 GL_UNSIGNED_NORMALIZED, /* DataType */
364 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
365 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
366 1, 1, 2 /* BlockWidth/Height,Bytes */
367 },
368 {
369 MESA_FORMAT_R8,
370 "MESA_FORMAT_R8",
371 GL_RED,
372 GL_UNSIGNED_NORMALIZED,
373 8, 0, 0, 0,
374 0, 0, 0, 0, 0,
375 1, 1, 1
376 },
377 {
378 MESA_FORMAT_RG88,
379 "MESA_FORMAT_RG88",
380 GL_RG,
381 GL_UNSIGNED_NORMALIZED,
382 8, 8, 0, 0,
383 0, 0, 0, 0, 0,
384 1, 1, 2
385 },
386 {
387 MESA_FORMAT_RG88_REV,
388 "MESA_FORMAT_RG88_REV",
389 GL_RG,
390 GL_UNSIGNED_NORMALIZED,
391 8, 8, 0, 0,
392 0, 0, 0, 0, 0,
393 1, 1, 2
394 },
395 {
396 MESA_FORMAT_R16,
397 "MESA_FORMAT_R16",
398 GL_RED,
399 GL_UNSIGNED_NORMALIZED,
400 16, 0, 0, 0,
401 0, 0, 0, 0, 0,
402 1, 1, 2
403 },
404 {
405 MESA_FORMAT_RG1616,
406 "MESA_FORMAT_RG1616",
407 GL_RG,
408 GL_UNSIGNED_NORMALIZED,
409 16, 16, 0, 0,
410 0, 0, 0, 0, 0,
411 1, 1, 4
412 },
413 {
414 MESA_FORMAT_RG1616_REV,
415 "MESA_FORMAT_RG1616_REV",
416 GL_RG,
417 GL_UNSIGNED_NORMALIZED,
418 16, 16, 0, 0,
419 0, 0, 0, 0, 0,
420 1, 1, 4
421 },
422 {
423 MESA_FORMAT_ARGB2101010,
424 "MESA_FORMAT_ARGB2101010",
425 GL_RGBA,
426 GL_UNSIGNED_NORMALIZED,
427 10, 10, 10, 2,
428 0, 0, 0, 0, 0,
429 1, 1, 4
430 },
431 {
432 MESA_FORMAT_Z24_S8, /* Name */
433 "MESA_FORMAT_Z24_S8", /* StrName */
434 GL_DEPTH_STENCIL, /* BaseFormat */
435 GL_UNSIGNED_NORMALIZED, /* DataType */
436 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
437 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
438 1, 1, 4 /* BlockWidth/Height,Bytes */
439 },
440 {
441 MESA_FORMAT_S8_Z24, /* Name */
442 "MESA_FORMAT_S8_Z24", /* StrName */
443 GL_DEPTH_STENCIL, /* BaseFormat */
444 GL_UNSIGNED_NORMALIZED, /* DataType */
445 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
446 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
447 1, 1, 4 /* BlockWidth/Height,Bytes */
448 },
449 {
450 MESA_FORMAT_Z16, /* Name */
451 "MESA_FORMAT_Z16", /* StrName */
452 GL_DEPTH_COMPONENT, /* BaseFormat */
453 GL_UNSIGNED_NORMALIZED, /* DataType */
454 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
455 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
456 1, 1, 2 /* BlockWidth/Height,Bytes */
457 },
458 {
459 MESA_FORMAT_X8_Z24, /* Name */
460 "MESA_FORMAT_X8_Z24", /* StrName */
461 GL_DEPTH_COMPONENT, /* BaseFormat */
462 GL_UNSIGNED_NORMALIZED, /* DataType */
463 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
464 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
465 1, 1, 4 /* BlockWidth/Height,Bytes */
466 },
467 {
468 MESA_FORMAT_Z24_X8, /* Name */
469 "MESA_FORMAT_Z24_X8", /* StrName */
470 GL_DEPTH_COMPONENT, /* BaseFormat */
471 GL_UNSIGNED_NORMALIZED, /* DataType */
472 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
473 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
474 1, 1, 4 /* BlockWidth/Height,Bytes */
475 },
476 {
477 MESA_FORMAT_Z32, /* Name */
478 "MESA_FORMAT_Z32", /* StrName */
479 GL_DEPTH_COMPONENT, /* BaseFormat */
480 GL_UNSIGNED_NORMALIZED, /* DataType */
481 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
482 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
483 1, 1, 4 /* BlockWidth/Height,Bytes */
484 },
485 {
486 MESA_FORMAT_S8, /* Name */
487 "MESA_FORMAT_S8", /* StrName */
488 GL_STENCIL_INDEX, /* BaseFormat */
489 GL_UNSIGNED_INT, /* DataType */
490 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
491 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
492 1, 1, 1 /* BlockWidth/Height,Bytes */
493 },
494 {
495 MESA_FORMAT_SRGB8,
496 "MESA_FORMAT_SRGB8",
497 GL_RGB,
498 GL_UNSIGNED_NORMALIZED,
499 8, 8, 8, 0,
500 0, 0, 0, 0, 0,
501 1, 1, 3
502 },
503 {
504 MESA_FORMAT_SRGBA8,
505 "MESA_FORMAT_SRGBA8",
506 GL_RGBA,
507 GL_UNSIGNED_NORMALIZED,
508 8, 8, 8, 8,
509 0, 0, 0, 0, 0,
510 1, 1, 4
511 },
512 {
513 MESA_FORMAT_SARGB8,
514 "MESA_FORMAT_SARGB8",
515 GL_RGBA,
516 GL_UNSIGNED_NORMALIZED,
517 8, 8, 8, 8,
518 0, 0, 0, 0, 0,
519 1, 1, 4
520 },
521 {
522 MESA_FORMAT_SL8,
523 "MESA_FORMAT_SL8",
524 GL_LUMINANCE,
525 GL_UNSIGNED_NORMALIZED,
526 0, 0, 0, 0,
527 8, 0, 0, 0, 0,
528 1, 1, 1
529 },
530 {
531 MESA_FORMAT_SLA8,
532 "MESA_FORMAT_SLA8",
533 GL_LUMINANCE_ALPHA,
534 GL_UNSIGNED_NORMALIZED,
535 0, 0, 0, 8,
536 8, 0, 0, 0, 0,
537 1, 1, 2
538 },
539 {
540 MESA_FORMAT_SRGB_DXT1, /* Name */
541 "MESA_FORMAT_SRGB_DXT1", /* StrName */
542 GL_RGB, /* BaseFormat */
543 GL_UNSIGNED_NORMALIZED, /* DataType */
544 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
545 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
546 4, 4, 8 /* 8 bytes per 4x4 block */
547 },
548 {
549 MESA_FORMAT_SRGBA_DXT1,
550 "MESA_FORMAT_SRGBA_DXT1",
551 GL_RGBA,
552 GL_UNSIGNED_NORMALIZED,
553 4, 4, 4, 4,
554 0, 0, 0, 0, 0,
555 4, 4, 8 /* 8 bytes per 4x4 block */
556 },
557 {
558 MESA_FORMAT_SRGBA_DXT3,
559 "MESA_FORMAT_SRGBA_DXT3",
560 GL_RGBA,
561 GL_UNSIGNED_NORMALIZED,
562 4, 4, 4, 4,
563 0, 0, 0, 0, 0,
564 4, 4, 16 /* 16 bytes per 4x4 block */
565 },
566 {
567 MESA_FORMAT_SRGBA_DXT5,
568 "MESA_FORMAT_SRGBA_DXT5",
569 GL_RGBA,
570 GL_UNSIGNED_NORMALIZED,
571 4, 4, 4, 4,
572 0, 0, 0, 0, 0,
573 4, 4, 16 /* 16 bytes per 4x4 block */
574 },
575
576 {
577 MESA_FORMAT_RGB_FXT1,
578 "MESA_FORMAT_RGB_FXT1",
579 GL_RGB,
580 GL_UNSIGNED_NORMALIZED,
581 4, 4, 4, 0, /* approx Red/Green/BlueBits */
582 0, 0, 0, 0, 0,
583 8, 4, 16 /* 16 bytes per 8x4 block */
584 },
585 {
586 MESA_FORMAT_RGBA_FXT1,
587 "MESA_FORMAT_RGBA_FXT1",
588 GL_RGBA,
589 GL_UNSIGNED_NORMALIZED,
590 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
591 0, 0, 0, 0, 0,
592 8, 4, 16 /* 16 bytes per 8x4 block */
593 },
594
595 {
596 MESA_FORMAT_RGB_DXT1, /* Name */
597 "MESA_FORMAT_RGB_DXT1", /* StrName */
598 GL_RGB, /* BaseFormat */
599 GL_UNSIGNED_NORMALIZED, /* DataType */
600 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
601 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
602 4, 4, 8 /* 8 bytes per 4x4 block */
603 },
604 {
605 MESA_FORMAT_RGBA_DXT1,
606 "MESA_FORMAT_RGBA_DXT1",
607 GL_RGBA,
608 GL_UNSIGNED_NORMALIZED,
609 4, 4, 4, 4,
610 0, 0, 0, 0, 0,
611 4, 4, 8 /* 8 bytes per 4x4 block */
612 },
613 {
614 MESA_FORMAT_RGBA_DXT3,
615 "MESA_FORMAT_RGBA_DXT3",
616 GL_RGBA,
617 GL_UNSIGNED_NORMALIZED,
618 4, 4, 4, 4,
619 0, 0, 0, 0, 0,
620 4, 4, 16 /* 16 bytes per 4x4 block */
621 },
622 {
623 MESA_FORMAT_RGBA_DXT5,
624 "MESA_FORMAT_RGBA_DXT5",
625 GL_RGBA,
626 GL_UNSIGNED_NORMALIZED,
627 4, 4, 4, 4,
628 0, 0, 0, 0, 0,
629 4, 4, 16 /* 16 bytes per 4x4 block */
630 },
631 {
632 MESA_FORMAT_RGBA_FLOAT32,
633 "MESA_FORMAT_RGBA_FLOAT32",
634 GL_RGBA,
635 GL_FLOAT,
636 32, 32, 32, 32,
637 0, 0, 0, 0, 0,
638 1, 1, 16
639 },
640 {
641 MESA_FORMAT_RGBA_FLOAT16,
642 "MESA_FORMAT_RGBA_FLOAT16",
643 GL_RGBA,
644 GL_FLOAT,
645 16, 16, 16, 16,
646 0, 0, 0, 0, 0,
647 1, 1, 8
648 },
649 {
650 MESA_FORMAT_RGB_FLOAT32,
651 "MESA_FORMAT_RGB_FLOAT32",
652 GL_RGB,
653 GL_FLOAT,
654 32, 32, 32, 0,
655 0, 0, 0, 0, 0,
656 1, 1, 12
657 },
658 {
659 MESA_FORMAT_RGB_FLOAT16,
660 "MESA_FORMAT_RGB_FLOAT16",
661 GL_RGB,
662 GL_FLOAT,
663 16, 16, 16, 0,
664 0, 0, 0, 0, 0,
665 1, 1, 6
666 },
667 {
668 MESA_FORMAT_ALPHA_FLOAT32,
669 "MESA_FORMAT_ALPHA_FLOAT32",
670 GL_ALPHA,
671 GL_FLOAT,
672 0, 0, 0, 32,
673 0, 0, 0, 0, 0,
674 1, 1, 4
675 },
676 {
677 MESA_FORMAT_ALPHA_FLOAT16,
678 "MESA_FORMAT_ALPHA_FLOAT16",
679 GL_ALPHA,
680 GL_FLOAT,
681 0, 0, 0, 16,
682 0, 0, 0, 0, 0,
683 1, 1, 2
684 },
685 {
686 MESA_FORMAT_LUMINANCE_FLOAT32,
687 "MESA_FORMAT_LUMINANCE_FLOAT32",
688 GL_LUMINANCE,
689 GL_FLOAT,
690 0, 0, 0, 0,
691 32, 0, 0, 0, 0,
692 1, 1, 4
693 },
694 {
695 MESA_FORMAT_LUMINANCE_FLOAT16,
696 "MESA_FORMAT_LUMINANCE_FLOAT16",
697 GL_LUMINANCE,
698 GL_FLOAT,
699 0, 0, 0, 0,
700 16, 0, 0, 0, 0,
701 1, 1, 2
702 },
703 {
704 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
705 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
706 GL_LUMINANCE_ALPHA,
707 GL_FLOAT,
708 0, 0, 0, 32,
709 32, 0, 0, 0, 0,
710 1, 1, 8
711 },
712 {
713 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
714 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
715 GL_LUMINANCE_ALPHA,
716 GL_FLOAT,
717 0, 0, 0, 16,
718 16, 0, 0, 0, 0,
719 1, 1, 4
720 },
721 {
722 MESA_FORMAT_INTENSITY_FLOAT32,
723 "MESA_FORMAT_INTENSITY_FLOAT32",
724 GL_INTENSITY,
725 GL_FLOAT,
726 0, 0, 0, 0,
727 0, 32, 0, 0, 0,
728 1, 1, 4
729 },
730 {
731 MESA_FORMAT_INTENSITY_FLOAT16,
732 "MESA_FORMAT_INTENSITY_FLOAT16",
733 GL_INTENSITY,
734 GL_FLOAT,
735 0, 0, 0, 0,
736 0, 16, 0, 0, 0,
737 1, 1, 2
738 },
739 {
740 MESA_FORMAT_R_FLOAT32,
741 "MESA_FORMAT_R_FLOAT32",
742 GL_RED,
743 GL_FLOAT,
744 32, 0, 0, 0,
745 0, 0, 0, 0, 0,
746 1, 1, 4
747 },
748 {
749 MESA_FORMAT_R_FLOAT16,
750 "MESA_FORMAT_R_FLOAT16",
751 GL_RED,
752 GL_FLOAT,
753 16, 0, 0, 0,
754 0, 0, 0, 0, 0,
755 1, 1, 2
756 },
757 {
758 MESA_FORMAT_RG_FLOAT32,
759 "MESA_FORMAT_RG_FLOAT32",
760 GL_RG,
761 GL_FLOAT,
762 32, 32, 0, 0,
763 0, 0, 0, 0, 0,
764 1, 1, 8
765 },
766 {
767 MESA_FORMAT_RG_FLOAT16,
768 "MESA_FORMAT_RG_FLOAT16",
769 GL_RG,
770 GL_FLOAT,
771 16, 16, 0, 0,
772 0, 0, 0, 0, 0,
773 1, 1, 4
774 },
775
776 /* unnormalized signed int formats */
777 /* unnormalized unsigned int formats */
778 {
779 MESA_FORMAT_ALPHA_UINT8,
780 "MESA_FORMAT_ALPHA_UINT8",
781 GL_ALPHA,
782 GL_UNSIGNED_INT,
783 0, 0, 0, 8,
784 0, 0, 0, 0, 0,
785 1, 1, 1
786 },
787 {
788 MESA_FORMAT_ALPHA_UINT16,
789 "MESA_FORMAT_ALPHA_UINT16",
790 GL_ALPHA,
791 GL_UNSIGNED_INT,
792 0, 0, 0, 16,
793 0, 0, 0, 0, 0,
794 1, 1, 2
795 },
796 {
797 MESA_FORMAT_ALPHA_UINT32,
798 "MESA_FORMAT_ALPHA_UINT32",
799 GL_ALPHA,
800 GL_UNSIGNED_INT,
801 0, 0, 0, 32,
802 0, 0, 0, 0, 0,
803 1, 1, 4
804 },
805 {
806 MESA_FORMAT_ALPHA_INT8,
807 "MESA_FORMAT_ALPHA_INT8",
808 GL_ALPHA,
809 GL_INT,
810 0, 0, 0, 8,
811 0, 0, 0, 0, 0,
812 1, 1, 1
813 },
814 {
815 MESA_FORMAT_ALPHA_INT16,
816 "MESA_FORMAT_ALPHA_INT16",
817 GL_ALPHA,
818 GL_INT,
819 0, 0, 0, 16,
820 0, 0, 0, 0, 0,
821 1, 1, 2
822 },
823 {
824 MESA_FORMAT_ALPHA_INT32,
825 "MESA_FORMAT_ALPHA_INT32",
826 GL_ALPHA,
827 GL_INT,
828 0, 0, 0, 32,
829 0, 0, 0, 0, 0,
830 1, 1, 4
831 },
832 {
833 MESA_FORMAT_INTENSITY_UINT8,
834 "MESA_FORMAT_INTENSITY_UINT8",
835 GL_INTENSITY,
836 GL_UNSIGNED_INT,
837 0, 0, 0, 0,
838 0, 8, 0, 0, 0,
839 1, 1, 1
840 },
841 {
842 MESA_FORMAT_INTENSITY_UINT16,
843 "MESA_FORMAT_INTENSITY_UINT16",
844 GL_INTENSITY,
845 GL_UNSIGNED_INT,
846 0, 0, 0, 0,
847 0, 16, 0, 0, 0,
848 1, 1, 2
849 },
850 {
851 MESA_FORMAT_INTENSITY_UINT32,
852 "MESA_FORMAT_INTENSITY_UINT32",
853 GL_INTENSITY,
854 GL_UNSIGNED_INT,
855 0, 0, 0, 0,
856 0, 32, 0, 0, 0,
857 1, 1, 4
858 },
859 {
860 MESA_FORMAT_INTENSITY_INT8,
861 "MESA_FORMAT_INTENSITY_INT8",
862 GL_INTENSITY,
863 GL_INT,
864 0, 0, 0, 0,
865 0, 8, 0, 0, 0,
866 1, 1, 1
867 },
868 {
869 MESA_FORMAT_INTENSITY_INT16,
870 "MESA_FORMAT_INTENSITY_INT16",
871 GL_INTENSITY,
872 GL_INT,
873 0, 0, 0, 0,
874 0, 16, 0, 0, 0,
875 1, 1, 2
876 },
877 {
878 MESA_FORMAT_INTENSITY_INT32,
879 "MESA_FORMAT_INTENSITY_INT32",
880 GL_INTENSITY,
881 GL_INT,
882 0, 0, 0, 0,
883 0, 32, 0, 0, 0,
884 1, 1, 4
885 },
886 {
887 MESA_FORMAT_LUMINANCE_UINT8,
888 "MESA_FORMAT_LUMINANCE_UINT8",
889 GL_LUMINANCE,
890 GL_UNSIGNED_INT,
891 0, 0, 0, 0,
892 8, 0, 0, 0, 0,
893 1, 1, 1
894 },
895 {
896 MESA_FORMAT_LUMINANCE_UINT16,
897 "MESA_FORMAT_LUMINANCE_UINT16",
898 GL_LUMINANCE,
899 GL_UNSIGNED_INT,
900 0, 0, 0, 0,
901 16, 0, 0, 0, 0,
902 1, 1, 2
903 },
904 {
905 MESA_FORMAT_LUMINANCE_UINT32,
906 "MESA_FORMAT_LUMINANCE_UINT32",
907 GL_LUMINANCE,
908 GL_UNSIGNED_INT,
909 0, 0, 0, 0,
910 32, 0, 0, 0, 0,
911 1, 1, 4
912 },
913 {
914 MESA_FORMAT_LUMINANCE_INT8,
915 "MESA_FORMAT_LUMINANCE_INT8",
916 GL_LUMINANCE,
917 GL_INT,
918 0, 0, 0, 0,
919 8, 0, 0, 0, 0,
920 1, 1, 1
921 },
922 {
923 MESA_FORMAT_LUMINANCE_INT16,
924 "MESA_FORMAT_LUMINANCE_INT16",
925 GL_LUMINANCE,
926 GL_INT,
927 0, 0, 0, 0,
928 16, 0, 0, 0, 0,
929 1, 1, 2
930 },
931 {
932 MESA_FORMAT_LUMINANCE_INT32,
933 "MESA_FORMAT_LUMINANCE_INT32",
934 GL_LUMINANCE,
935 GL_INT,
936 0, 0, 0, 0,
937 32, 0, 0, 0, 0,
938 1, 1, 4
939 },
940 {
941 MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
942 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
943 GL_LUMINANCE_ALPHA,
944 GL_UNSIGNED_INT,
945 0, 0, 0, 8,
946 8, 0, 0, 0, 0,
947 1, 1, 2
948 },
949 {
950 MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
951 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
952 GL_LUMINANCE_ALPHA,
953 GL_UNSIGNED_INT,
954 0, 0, 0, 16,
955 16, 0, 0, 0, 0,
956 1, 1, 4
957 },
958 {
959 MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
960 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
961 GL_LUMINANCE_ALPHA,
962 GL_UNSIGNED_INT,
963 0, 0, 0, 32,
964 32, 0, 0, 0, 0,
965 1, 1, 8
966 },
967 {
968 MESA_FORMAT_LUMINANCE_ALPHA_INT8,
969 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
970 GL_LUMINANCE_ALPHA,
971 GL_INT,
972 0, 0, 0, 8,
973 8, 0, 0, 0, 0,
974 1, 1, 2
975 },
976 {
977 MESA_FORMAT_LUMINANCE_ALPHA_INT16,
978 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
979 GL_LUMINANCE_ALPHA,
980 GL_INT,
981 0, 0, 0, 16,
982 16, 0, 0, 0, 0,
983 1, 1, 4
984 },
985 {
986 MESA_FORMAT_LUMINANCE_ALPHA_INT32,
987 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
988 GL_LUMINANCE_ALPHA,
989 GL_INT,
990 0, 0, 0, 32,
991 32, 0, 0, 0, 0,
992 1, 1, 8
993 },
994
995 {
996 MESA_FORMAT_R_INT8,
997 "MESA_FORMAT_R_INT8",
998 GL_RED,
999 GL_INT,
1000 8, 0, 0, 0,
1001 0, 0, 0, 0, 0,
1002 1, 1, 1
1003 },
1004 {
1005 MESA_FORMAT_RG_INT8,
1006 "MESA_FORMAT_RG_INT8",
1007 GL_RG,
1008 GL_INT,
1009 8, 8, 0, 0,
1010 0, 0, 0, 0, 0,
1011 1, 1, 2
1012 },
1013 {
1014 MESA_FORMAT_RGB_INT8,
1015 "MESA_FORMAT_RGB_INT8",
1016 GL_RGB,
1017 GL_INT,
1018 8, 8, 8, 0,
1019 0, 0, 0, 0, 0,
1020 1, 1, 3
1021 },
1022 {
1023 MESA_FORMAT_RGBA_INT8,
1024 "MESA_FORMAT_RGBA_INT8",
1025 GL_RGBA,
1026 GL_INT,
1027 8, 8, 8, 8,
1028 0, 0, 0, 0, 0,
1029 1, 1, 4
1030 },
1031 {
1032 MESA_FORMAT_R_INT16,
1033 "MESA_FORMAT_R_INT16",
1034 GL_RED,
1035 GL_INT,
1036 16, 0, 0, 0,
1037 0, 0, 0, 0, 0,
1038 1, 1, 2
1039 },
1040 {
1041 MESA_FORMAT_RG_INT16,
1042 "MESA_FORMAT_RG_INT16",
1043 GL_RG,
1044 GL_INT,
1045 16, 16, 0, 0,
1046 0, 0, 0, 0, 0,
1047 1, 1, 4
1048 },
1049 {
1050 MESA_FORMAT_RGB_INT16,
1051 "MESA_FORMAT_RGB_INT16",
1052 GL_RGB,
1053 GL_INT,
1054 16, 16, 16, 0,
1055 0, 0, 0, 0, 0,
1056 1, 1, 6
1057 },
1058 {
1059 MESA_FORMAT_RGBA_INT16,
1060 "MESA_FORMAT_RGBA_INT16",
1061 GL_RGBA,
1062 GL_INT,
1063 16, 16, 16, 16,
1064 0, 0, 0, 0, 0,
1065 1, 1, 8
1066 },
1067 {
1068 MESA_FORMAT_R_INT32,
1069 "MESA_FORMAT_R_INT32",
1070 GL_RED,
1071 GL_INT,
1072 32, 0, 0, 0,
1073 0, 0, 0, 0, 0,
1074 1, 1, 4
1075 },
1076 {
1077 MESA_FORMAT_RG_INT32,
1078 "MESA_FORMAT_RG_INT32",
1079 GL_RG,
1080 GL_INT,
1081 32, 32, 0, 0,
1082 0, 0, 0, 0, 0,
1083 1, 1, 8
1084 },
1085 {
1086 MESA_FORMAT_RGB_INT32,
1087 "MESA_FORMAT_RGB_INT32",
1088 GL_RGB,
1089 GL_INT,
1090 32, 32, 32, 0,
1091 0, 0, 0, 0, 0,
1092 1, 1, 12
1093 },
1094 {
1095 MESA_FORMAT_RGBA_INT32,
1096 "MESA_FORMAT_RGBA_INT32",
1097 GL_RGBA,
1098 GL_INT,
1099 32, 32, 32, 32,
1100 0, 0, 0, 0, 0,
1101 1, 1, 16
1102 },
1103 {
1104 MESA_FORMAT_R_UINT8,
1105 "MESA_FORMAT_R_UINT8",
1106 GL_RED,
1107 GL_UNSIGNED_INT,
1108 8, 0, 0, 0,
1109 0, 0, 0, 0, 0,
1110 1, 1, 1
1111 },
1112 {
1113 MESA_FORMAT_RG_UINT8,
1114 "MESA_FORMAT_RG_UINT8",
1115 GL_RG,
1116 GL_UNSIGNED_INT,
1117 8, 8, 0, 0,
1118 0, 0, 0, 0, 0,
1119 1, 1, 2
1120 },
1121 {
1122 MESA_FORMAT_RGB_UINT8,
1123 "MESA_FORMAT_RGB_UINT8",
1124 GL_RGB,
1125 GL_UNSIGNED_INT,
1126 8, 8, 8, 0,
1127 0, 0, 0, 0, 0,
1128 1, 1, 3
1129 },
1130 {
1131 MESA_FORMAT_RGBA_UINT8,
1132 "MESA_FORMAT_RGBA_UINT8",
1133 GL_RGBA,
1134 GL_UNSIGNED_INT,
1135 8, 8, 8, 8,
1136 0, 0, 0, 0, 0,
1137 1, 1, 4
1138 },
1139 {
1140 MESA_FORMAT_R_UINT16,
1141 "MESA_FORMAT_R_UINT16",
1142 GL_RED,
1143 GL_UNSIGNED_INT,
1144 16, 0, 0, 0,
1145 0, 0, 0, 0, 0,
1146 1, 1, 2
1147 },
1148 {
1149 MESA_FORMAT_RG_UINT16,
1150 "MESA_FORMAT_RG_UINT16",
1151 GL_RG,
1152 GL_UNSIGNED_INT,
1153 16, 16, 0, 0,
1154 0, 0, 0, 0, 0,
1155 1, 1, 4
1156 },
1157 {
1158 MESA_FORMAT_RGB_UINT16,
1159 "MESA_FORMAT_RGB_UINT16",
1160 GL_RGB,
1161 GL_UNSIGNED_INT,
1162 16, 16, 16, 0,
1163 0, 0, 0, 0, 0,
1164 1, 1, 6
1165 },
1166 {
1167 MESA_FORMAT_RGBA_UINT16,
1168 "MESA_FORMAT_RGBA_UINT16",
1169 GL_RGBA,
1170 GL_UNSIGNED_INT,
1171 16, 16, 16, 16,
1172 0, 0, 0, 0, 0,
1173 1, 1, 8
1174 },
1175 {
1176 MESA_FORMAT_R_UINT32,
1177 "MESA_FORMAT_R_UINT32",
1178 GL_RED,
1179 GL_UNSIGNED_INT,
1180 32, 0, 0, 0,
1181 0, 0, 0, 0, 0,
1182 1, 1, 4
1183 },
1184 {
1185 MESA_FORMAT_RG_UINT32,
1186 "MESA_FORMAT_RG_UINT32",
1187 GL_RG,
1188 GL_UNSIGNED_INT,
1189 32, 32, 0, 0,
1190 0, 0, 0, 0, 0,
1191 1, 1, 8
1192 },
1193 {
1194 MESA_FORMAT_RGB_UINT32,
1195 "MESA_FORMAT_RGB_UINT32",
1196 GL_RGB,
1197 GL_UNSIGNED_INT,
1198 32, 32, 32, 0,
1199 0, 0, 0, 0, 0,
1200 1, 1, 12
1201 },
1202 {
1203 MESA_FORMAT_RGBA_UINT32,
1204 "MESA_FORMAT_RGBA_UINT32",
1205 GL_RGBA,
1206 GL_UNSIGNED_INT,
1207 32, 32, 32, 32,
1208 0, 0, 0, 0, 0,
1209 1, 1, 16
1210 },
1211
1212
1213 {
1214 MESA_FORMAT_DUDV8,
1215 "MESA_FORMAT_DUDV8",
1216 GL_DUDV_ATI,
1217 GL_SIGNED_NORMALIZED,
1218 0, 0, 0, 0,
1219 0, 0, 0, 0, 0,
1220 1, 1, 2
1221 },
1222
1223 /* Signed 8 bits / channel */
1224 {
1225 MESA_FORMAT_SIGNED_R8, /* Name */
1226 "MESA_FORMAT_SIGNED_R8", /* StrName */
1227 GL_RED, /* BaseFormat */
1228 GL_SIGNED_NORMALIZED, /* DataType */
1229 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1230 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1231 1, 1, 1 /* BlockWidth/Height,Bytes */
1232 },
1233 {
1234 MESA_FORMAT_SIGNED_RG88_REV,
1235 "MESA_FORMAT_SIGNED_RG88_REV",
1236 GL_RG,
1237 GL_SIGNED_NORMALIZED,
1238 8, 8, 0, 0,
1239 0, 0, 0, 0, 0,
1240 1, 1, 2
1241 },
1242 {
1243 MESA_FORMAT_SIGNED_RGBX8888,
1244 "MESA_FORMAT_SIGNED_RGBX8888",
1245 GL_RGB,
1246 GL_SIGNED_NORMALIZED,
1247 8, 8, 8, 0,
1248 0, 0, 0, 0, 0,
1249 1, 1, 4 /* 4 bpp, but no alpha */
1250 },
1251 {
1252 MESA_FORMAT_SIGNED_RGBA8888,
1253 "MESA_FORMAT_SIGNED_RGBA8888",
1254 GL_RGBA,
1255 GL_SIGNED_NORMALIZED,
1256 8, 8, 8, 8,
1257 0, 0, 0, 0, 0,
1258 1, 1, 4
1259 },
1260 {
1261 MESA_FORMAT_SIGNED_RGBA8888_REV,
1262 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1263 GL_RGBA,
1264 GL_SIGNED_NORMALIZED,
1265 8, 8, 8, 8,
1266 0, 0, 0, 0, 0,
1267 1, 1, 4
1268 },
1269
1270 /* Signed 16 bits / channel */
1271 {
1272 MESA_FORMAT_SIGNED_R16,
1273 "MESA_FORMAT_SIGNED_R16",
1274 GL_RED,
1275 GL_SIGNED_NORMALIZED,
1276 16, 0, 0, 0,
1277 0, 0, 0, 0, 0,
1278 1, 1, 2
1279 },
1280 {
1281 MESA_FORMAT_SIGNED_GR1616,
1282 "MESA_FORMAT_SIGNED_GR1616",
1283 GL_RG,
1284 GL_SIGNED_NORMALIZED,
1285 16, 16, 0, 0,
1286 0, 0, 0, 0, 0,
1287 1, 1, 4
1288 },
1289 {
1290 MESA_FORMAT_SIGNED_RGB_16,
1291 "MESA_FORMAT_SIGNED_RGB_16",
1292 GL_RGB,
1293 GL_SIGNED_NORMALIZED,
1294 16, 16, 16, 0,
1295 0, 0, 0, 0, 0,
1296 1, 1, 6
1297 },
1298 {
1299 MESA_FORMAT_SIGNED_RGBA_16,
1300 "MESA_FORMAT_SIGNED_RGBA_16",
1301 GL_RGBA,
1302 GL_SIGNED_NORMALIZED,
1303 16, 16, 16, 16,
1304 0, 0, 0, 0, 0,
1305 1, 1, 8
1306 },
1307 {
1308 MESA_FORMAT_RGBA_16,
1309 "MESA_FORMAT_RGBA_16",
1310 GL_RGBA,
1311 GL_UNSIGNED_NORMALIZED,
1312 16, 16, 16, 16,
1313 0, 0, 0, 0, 0,
1314 1, 1, 8
1315 },
1316 {
1317 MESA_FORMAT_RED_RGTC1,
1318 "MESA_FORMAT_RED_RGTC1",
1319 GL_RED,
1320 GL_UNSIGNED_NORMALIZED,
1321 4, 0, 0, 0,
1322 0, 0, 0, 0, 0,
1323 4, 4, 8 /* 8 bytes per 4x4 block */
1324 },
1325 {
1326 MESA_FORMAT_SIGNED_RED_RGTC1,
1327 "MESA_FORMAT_SIGNED_RED_RGTC1",
1328 GL_RED,
1329 GL_SIGNED_NORMALIZED,
1330 4, 0, 0, 0,
1331 0, 0, 0, 0, 0,
1332 4, 4, 8 /* 8 bytes per 4x4 block */
1333 },
1334 {
1335 MESA_FORMAT_RG_RGTC2,
1336 "MESA_FORMAT_RG_RGTC2",
1337 GL_RG,
1338 GL_UNSIGNED_NORMALIZED,
1339 4, 4, 0, 0,
1340 0, 0, 0, 0, 0,
1341 4, 4, 16 /* 16 bytes per 4x4 block */
1342 },
1343 {
1344 MESA_FORMAT_SIGNED_RG_RGTC2,
1345 "MESA_FORMAT_SIGNED_RG_RGTC2",
1346 GL_RG,
1347 GL_SIGNED_NORMALIZED,
1348 4, 4, 0, 0,
1349 0, 0, 0, 0, 0,
1350 4, 4, 16 /* 16 bytes per 4x4 block */
1351 },
1352 {
1353 MESA_FORMAT_L_LATC1,
1354 "MESA_FORMAT_L_LATC1",
1355 GL_LUMINANCE,
1356 GL_UNSIGNED_NORMALIZED,
1357 0, 0, 0, 0,
1358 4, 0, 0, 0, 0,
1359 4, 4, 8 /* 8 bytes per 4x4 block */
1360 },
1361 {
1362 MESA_FORMAT_SIGNED_L_LATC1,
1363 "MESA_FORMAT_SIGNED_L_LATC1",
1364 GL_LUMINANCE,
1365 GL_SIGNED_NORMALIZED,
1366 0, 0, 0, 0,
1367 4, 0, 0, 0, 0,
1368 4, 4, 8 /* 8 bytes per 4x4 block */
1369 },
1370 {
1371 MESA_FORMAT_LA_LATC2,
1372 "MESA_FORMAT_LA_LATC2",
1373 GL_LUMINANCE_ALPHA,
1374 GL_UNSIGNED_NORMALIZED,
1375 0, 0, 0, 4,
1376 4, 0, 0, 0, 0,
1377 4, 4, 16 /* 16 bytes per 4x4 block */
1378 },
1379 {
1380 MESA_FORMAT_SIGNED_LA_LATC2,
1381 "MESA_FORMAT_SIGNED_LA_LATC2",
1382 GL_LUMINANCE_ALPHA,
1383 GL_SIGNED_NORMALIZED,
1384 0, 0, 0, 4,
1385 4, 0, 0, 0, 0,
1386 4, 4, 16 /* 16 bytes per 4x4 block */
1387 },
1388
1389 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1390 {
1391 MESA_FORMAT_SIGNED_A8,
1392 "MESA_FORMAT_SIGNED_A8",
1393 GL_ALPHA,
1394 GL_SIGNED_NORMALIZED,
1395 0, 0, 0, 8,
1396 0, 0, 0, 0, 0,
1397 1, 1, 1
1398 },
1399 {
1400 MESA_FORMAT_SIGNED_L8,
1401 "MESA_FORMAT_SIGNED_L8",
1402 GL_LUMINANCE,
1403 GL_SIGNED_NORMALIZED,
1404 0, 0, 0, 0,
1405 8, 0, 0, 0, 0,
1406 1, 1, 1
1407 },
1408 {
1409 MESA_FORMAT_SIGNED_AL88,
1410 "MESA_FORMAT_SIGNED_AL88",
1411 GL_LUMINANCE_ALPHA,
1412 GL_SIGNED_NORMALIZED,
1413 0, 0, 0, 8,
1414 8, 0, 0, 0, 0,
1415 1, 1, 2
1416 },
1417 {
1418 MESA_FORMAT_SIGNED_I8,
1419 "MESA_FORMAT_SIGNED_I8",
1420 GL_INTENSITY,
1421 GL_SIGNED_NORMALIZED,
1422 0, 0, 0, 0,
1423 0, 8, 0, 0, 0,
1424 1, 1, 1
1425 },
1426 {
1427 MESA_FORMAT_SIGNED_A16,
1428 "MESA_FORMAT_SIGNED_A16",
1429 GL_ALPHA,
1430 GL_SIGNED_NORMALIZED,
1431 0, 0, 0, 16,
1432 0, 0, 0, 0, 0,
1433 1, 1, 2
1434 },
1435 {
1436 MESA_FORMAT_SIGNED_L16,
1437 "MESA_FORMAT_SIGNED_L16",
1438 GL_LUMINANCE,
1439 GL_SIGNED_NORMALIZED,
1440 0, 0, 0, 0,
1441 16, 0, 0, 0, 0,
1442 1, 1, 2
1443 },
1444 {
1445 MESA_FORMAT_SIGNED_AL1616,
1446 "MESA_FORMAT_SIGNED_AL1616",
1447 GL_LUMINANCE_ALPHA,
1448 GL_SIGNED_NORMALIZED,
1449 0, 0, 0, 16,
1450 16, 0, 0, 0, 0,
1451 1, 1, 4
1452 },
1453 {
1454 MESA_FORMAT_SIGNED_I16,
1455 "MESA_FORMAT_SIGNED_I16",
1456 GL_INTENSITY,
1457 GL_SIGNED_NORMALIZED,
1458 0, 0, 0, 0,
1459 0, 16, 0, 0, 0,
1460 1, 1, 2
1461 },
1462 {
1463 MESA_FORMAT_RGB9_E5_FLOAT,
1464 "MESA_FORMAT_RGB9_E5",
1465 GL_RGB,
1466 GL_FLOAT,
1467 9, 9, 9, 0,
1468 0, 0, 0, 0, 0,
1469 1, 1, 4
1470 },
1471 {
1472 MESA_FORMAT_R11_G11_B10_FLOAT,
1473 "MESA_FORMAT_R11_G11_B10_FLOAT",
1474 GL_RGB,
1475 GL_FLOAT,
1476 11, 11, 10, 0,
1477 0, 0, 0, 0, 0,
1478 1, 1, 4
1479 },
1480 /* ARB_depth_buffer_float */
1481 {
1482 MESA_FORMAT_Z32_FLOAT, /* Name */
1483 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1484 GL_DEPTH_COMPONENT, /* BaseFormat */
1485 GL_FLOAT, /* DataType */
1486 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1487 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1488 1, 1, 4 /* BlockWidth/Height,Bytes */
1489 },
1490 {
1491 MESA_FORMAT_Z32_FLOAT_X24S8, /* Name */
1492 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1493 GL_DEPTH_STENCIL, /* BaseFormat */
1494 GL_NONE /* XXX */, /* DataType */
1495 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1496 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1497 1, 1, 8 /* BlockWidth/Height,Bytes */
1498 },
1499 {
1500 MESA_FORMAT_ARGB2101010_UINT,
1501 "MESA_FORMAT_ARGB2101010_UINT",
1502 GL_RGBA,
1503 GL_UNSIGNED_INT,
1504 10, 10, 10, 2,
1505 0, 0, 0, 0, 0,
1506 1, 1, 4
1507 },
1508 };
1509
1510
1511
1512 static const struct gl_format_info *
1513 _mesa_get_format_info(gl_format format)
1514 {
1515 const struct gl_format_info *info = &format_info[format];
1516 assert(info->Name == format);
1517 return info;
1518 }
1519
1520
1521 /** Return string name of format (for debugging) */
1522 const char *
1523 _mesa_get_format_name(gl_format format)
1524 {
1525 const struct gl_format_info *info = _mesa_get_format_info(format);
1526 return info->StrName;
1527 }
1528
1529
1530
1531 /**
1532 * Return bytes needed to store a block of pixels in the given format.
1533 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1534 * a block may be 4x4 or 8x4, etc.
1535 *
1536 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1537 */
1538 GLint
1539 _mesa_get_format_bytes(gl_format format)
1540 {
1541 const struct gl_format_info *info = _mesa_get_format_info(format);
1542 ASSERT(info->BytesPerBlock);
1543 return info->BytesPerBlock;
1544 }
1545
1546
1547 /**
1548 * Return bits per component for the given format.
1549 * \param format one of MESA_FORMAT_x
1550 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1551 */
1552 GLint
1553 _mesa_get_format_bits(gl_format format, GLenum pname)
1554 {
1555 const struct gl_format_info *info = _mesa_get_format_info(format);
1556
1557 switch (pname) {
1558 case GL_RED_BITS:
1559 case GL_TEXTURE_RED_SIZE:
1560 case GL_RENDERBUFFER_RED_SIZE_EXT:
1561 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1562 return info->RedBits;
1563 case GL_GREEN_BITS:
1564 case GL_TEXTURE_GREEN_SIZE:
1565 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1566 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1567 return info->GreenBits;
1568 case GL_BLUE_BITS:
1569 case GL_TEXTURE_BLUE_SIZE:
1570 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1571 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1572 return info->BlueBits;
1573 case GL_ALPHA_BITS:
1574 case GL_TEXTURE_ALPHA_SIZE:
1575 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1576 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1577 return info->AlphaBits;
1578 case GL_TEXTURE_INTENSITY_SIZE:
1579 return info->IntensityBits;
1580 case GL_TEXTURE_LUMINANCE_SIZE:
1581 return info->LuminanceBits;
1582 case GL_INDEX_BITS:
1583 return info->IndexBits;
1584 case GL_DEPTH_BITS:
1585 case GL_TEXTURE_DEPTH_SIZE_ARB:
1586 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1587 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1588 return info->DepthBits;
1589 case GL_STENCIL_BITS:
1590 case GL_TEXTURE_STENCIL_SIZE_EXT:
1591 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1592 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1593 return info->StencilBits;
1594 default:
1595 _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
1596 return 0;
1597 }
1598 }
1599
1600
1601 /**
1602 * Return the data type (or more specifically, the data representation)
1603 * for the given format.
1604 * The return value will be one of:
1605 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1606 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1607 * GL_UNSIGNED_INT = an ordinary unsigned integer
1608 * GL_INT = an ordinary signed integer
1609 * GL_FLOAT = an ordinary float
1610 */
1611 GLenum
1612 _mesa_get_format_datatype(gl_format format)
1613 {
1614 const struct gl_format_info *info = _mesa_get_format_info(format);
1615 return info->DataType;
1616 }
1617
1618
1619 /**
1620 * Return the basic format for the given type. The result will be one of
1621 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1622 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1623 */
1624 GLenum
1625 _mesa_get_format_base_format(gl_format format)
1626 {
1627 const struct gl_format_info *info = _mesa_get_format_info(format);
1628 return info->BaseFormat;
1629 }
1630
1631
1632 /**
1633 * Return the block size (in pixels) for the given format. Normally
1634 * the block size is 1x1. But compressed formats will have block sizes
1635 * of 4x4 or 8x4 pixels, etc.
1636 * \param bw returns block width in pixels
1637 * \param bh returns block height in pixels
1638 */
1639 void
1640 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1641 {
1642 const struct gl_format_info *info = _mesa_get_format_info(format);
1643 *bw = info->BlockWidth;
1644 *bh = info->BlockHeight;
1645 }
1646
1647
1648 /** Is the given format a compressed format? */
1649 GLboolean
1650 _mesa_is_format_compressed(gl_format format)
1651 {
1652 const struct gl_format_info *info = _mesa_get_format_info(format);
1653 return info->BlockWidth > 1 || info->BlockHeight > 1;
1654 }
1655
1656
1657 /**
1658 * Determine if the given format represents a packed depth/stencil buffer.
1659 */
1660 GLboolean
1661 _mesa_is_format_packed_depth_stencil(gl_format format)
1662 {
1663 const struct gl_format_info *info = _mesa_get_format_info(format);
1664
1665 return info->BaseFormat == GL_DEPTH_STENCIL;
1666 }
1667
1668
1669 /**
1670 * Is the given format a signed/unsigned integer color format?
1671 */
1672 GLboolean
1673 _mesa_is_format_integer_color(gl_format format)
1674 {
1675 const struct gl_format_info *info = _mesa_get_format_info(format);
1676 return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
1677 info->BaseFormat != GL_DEPTH_COMPONENT &&
1678 info->BaseFormat != GL_DEPTH_STENCIL &&
1679 info->BaseFormat != GL_STENCIL_INDEX;
1680 }
1681
1682
1683 /**
1684 * Return color encoding for given format.
1685 * \return GL_LINEAR or GL_SRGB
1686 */
1687 GLenum
1688 _mesa_get_format_color_encoding(gl_format format)
1689 {
1690 /* XXX this info should be encoded in gl_format_info */
1691 switch (format) {
1692 case MESA_FORMAT_SRGB8:
1693 case MESA_FORMAT_SRGBA8:
1694 case MESA_FORMAT_SARGB8:
1695 case MESA_FORMAT_SL8:
1696 case MESA_FORMAT_SLA8:
1697 case MESA_FORMAT_SRGB_DXT1:
1698 case MESA_FORMAT_SRGBA_DXT1:
1699 case MESA_FORMAT_SRGBA_DXT3:
1700 case MESA_FORMAT_SRGBA_DXT5:
1701 return GL_SRGB;
1702 default:
1703 return GL_LINEAR;
1704 }
1705 }
1706
1707
1708 /**
1709 * For an sRGB format, return the corresponding linear color space format.
1710 * For non-sRGB formats, return the format as-is.
1711 */
1712 gl_format
1713 _mesa_get_srgb_format_linear(gl_format format)
1714 {
1715 switch (format) {
1716 case MESA_FORMAT_SRGB8:
1717 format = MESA_FORMAT_RGB888;
1718 break;
1719 case MESA_FORMAT_SRGBA8:
1720 format = MESA_FORMAT_RGBA8888;
1721 break;
1722 case MESA_FORMAT_SARGB8:
1723 format = MESA_FORMAT_ARGB8888;
1724 break;
1725 case MESA_FORMAT_SL8:
1726 format = MESA_FORMAT_L8;
1727 break;
1728 case MESA_FORMAT_SLA8:
1729 format = MESA_FORMAT_AL88;
1730 break;
1731 case MESA_FORMAT_SRGB_DXT1:
1732 format = MESA_FORMAT_RGB_DXT1;
1733 break;
1734 case MESA_FORMAT_SRGBA_DXT1:
1735 format = MESA_FORMAT_RGBA_DXT1;
1736 break;
1737 case MESA_FORMAT_SRGBA_DXT3:
1738 format = MESA_FORMAT_RGBA_DXT3;
1739 break;
1740 case MESA_FORMAT_SRGBA_DXT5:
1741 format = MESA_FORMAT_RGBA_DXT5;
1742 break;
1743 default:
1744 break;
1745 }
1746 return format;
1747 }
1748
1749
1750 /**
1751 * If the given format is a compressed format, return a corresponding
1752 * uncompressed format.
1753 */
1754 gl_format
1755 _mesa_get_uncompressed_format(gl_format format)
1756 {
1757 switch (format) {
1758 case MESA_FORMAT_RGB_FXT1:
1759 return MESA_FORMAT_RGB888;
1760 case MESA_FORMAT_RGBA_FXT1:
1761 return MESA_FORMAT_RGBA8888;
1762 case MESA_FORMAT_RGB_DXT1:
1763 case MESA_FORMAT_SRGB_DXT1:
1764 return MESA_FORMAT_RGB888;
1765 case MESA_FORMAT_RGBA_DXT1:
1766 case MESA_FORMAT_SRGBA_DXT1:
1767 return MESA_FORMAT_RGBA8888;
1768 case MESA_FORMAT_RGBA_DXT3:
1769 case MESA_FORMAT_SRGBA_DXT3:
1770 return MESA_FORMAT_RGBA8888;
1771 case MESA_FORMAT_RGBA_DXT5:
1772 case MESA_FORMAT_SRGBA_DXT5:
1773 return MESA_FORMAT_RGBA8888;
1774 case MESA_FORMAT_RED_RGTC1:
1775 return MESA_FORMAT_R8;
1776 case MESA_FORMAT_SIGNED_RED_RGTC1:
1777 return MESA_FORMAT_SIGNED_R8;
1778 case MESA_FORMAT_RG_RGTC2:
1779 return MESA_FORMAT_RG88;
1780 case MESA_FORMAT_SIGNED_RG_RGTC2:
1781 return MESA_FORMAT_SIGNED_RG88_REV;
1782 case MESA_FORMAT_L_LATC1:
1783 return MESA_FORMAT_L8;
1784 case MESA_FORMAT_SIGNED_L_LATC1:
1785 return MESA_FORMAT_SIGNED_L8;
1786 case MESA_FORMAT_LA_LATC2:
1787 return MESA_FORMAT_AL88;
1788 case MESA_FORMAT_SIGNED_LA_LATC2:
1789 return MESA_FORMAT_SIGNED_AL88;
1790 default:
1791 #ifdef DEBUG
1792 assert(!_mesa_is_format_compressed(format));
1793 #endif
1794 return format;
1795 }
1796 }
1797
1798
1799 GLuint
1800 _mesa_format_num_components(gl_format format)
1801 {
1802 const struct gl_format_info *info = _mesa_get_format_info(format);
1803 return ((info->RedBits > 0) +
1804 (info->GreenBits > 0) +
1805 (info->BlueBits > 0) +
1806 (info->AlphaBits > 0) +
1807 (info->LuminanceBits > 0) +
1808 (info->IntensityBits > 0) +
1809 (info->DepthBits > 0) +
1810 (info->StencilBits > 0));
1811 }
1812
1813
1814 /**
1815 * Return number of bytes needed to store an image of the given size
1816 * in the given format.
1817 */
1818 GLuint
1819 _mesa_format_image_size(gl_format format, GLsizei width,
1820 GLsizei height, GLsizei depth)
1821 {
1822 const struct gl_format_info *info = _mesa_get_format_info(format);
1823 /* Strictly speaking, a conditional isn't needed here */
1824 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1825 /* compressed format (2D only for now) */
1826 const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
1827 const GLuint wblocks = (width + bw - 1) / bw;
1828 const GLuint hblocks = (height + bh - 1) / bh;
1829 const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
1830 assert(depth == 1);
1831 return sz;
1832 }
1833 else {
1834 /* non-compressed */
1835 const GLuint sz = width * height * depth * info->BytesPerBlock;
1836 return sz;
1837 }
1838 }
1839
1840
1841 /**
1842 * Same as _mesa_format_image_size() but returns a 64-bit value to
1843 * accomodate very large textures.
1844 */
1845 uint64_t
1846 _mesa_format_image_size64(gl_format format, GLsizei width,
1847 GLsizei height, GLsizei depth)
1848 {
1849 const struct gl_format_info *info = _mesa_get_format_info(format);
1850 /* Strictly speaking, a conditional isn't needed here */
1851 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1852 /* compressed format (2D only for now) */
1853 const uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
1854 const uint64_t wblocks = (width + bw - 1) / bw;
1855 const uint64_t hblocks = (height + bh - 1) / bh;
1856 const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
1857 assert(depth == 1);
1858 return sz;
1859 }
1860 else {
1861 /* non-compressed */
1862 const uint64_t sz = ((uint64_t) width *
1863 (uint64_t) height *
1864 (uint64_t) depth *
1865 info->BytesPerBlock);
1866 return sz;
1867 }
1868 }
1869
1870
1871
1872 GLint
1873 _mesa_format_row_stride(gl_format format, GLsizei width)
1874 {
1875 const struct gl_format_info *info = _mesa_get_format_info(format);
1876 /* Strictly speaking, a conditional isn't needed here */
1877 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1878 /* compressed format */
1879 const GLuint bw = info->BlockWidth;
1880 const GLuint wblocks = (width + bw - 1) / bw;
1881 const GLint stride = wblocks * info->BytesPerBlock;
1882 return stride;
1883 }
1884 else {
1885 const GLint stride = width * info->BytesPerBlock;
1886 return stride;
1887 }
1888 }
1889
1890
1891 /**
1892 * Debug/test: check that all formats are handled in the
1893 * _mesa_format_to_type_and_comps() function. When new pixel formats
1894 * are added to Mesa, that function needs to be updated.
1895 * This is a no-op after the first call.
1896 */
1897 static void
1898 check_format_to_type_and_comps(void)
1899 {
1900 gl_format f;
1901
1902 for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
1903 GLenum datatype = 0;
1904 GLuint comps = 0;
1905 /* This function will emit a problem/warning if the format is
1906 * not handled.
1907 */
1908 _mesa_format_to_type_and_comps(f, &datatype, &comps);
1909 }
1910 }
1911
1912
1913 /**
1914 * Do sanity checking of the format info table.
1915 */
1916 void
1917 _mesa_test_formats(void)
1918 {
1919 GLuint i;
1920
1921 assert(Elements(format_info) == MESA_FORMAT_COUNT);
1922
1923 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
1924 const struct gl_format_info *info = _mesa_get_format_info(i);
1925 assert(info);
1926
1927 assert(info->Name == i);
1928
1929 if (info->Name == MESA_FORMAT_NONE)
1930 continue;
1931
1932 if (info->BlockWidth == 1 && info->BlockHeight == 1) {
1933 if (info->RedBits > 0) {
1934 GLuint t = info->RedBits + info->GreenBits
1935 + info->BlueBits + info->AlphaBits;
1936 assert(t / 8 <= info->BytesPerBlock);
1937 (void) t;
1938 }
1939 }
1940
1941 assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
1942 info->DataType == GL_SIGNED_NORMALIZED ||
1943 info->DataType == GL_UNSIGNED_INT ||
1944 info->DataType == GL_INT ||
1945 info->DataType == GL_FLOAT ||
1946 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1947 info->DataType == GL_NONE);
1948
1949 if (info->BaseFormat == GL_RGB) {
1950 assert(info->RedBits > 0);
1951 assert(info->GreenBits > 0);
1952 assert(info->BlueBits > 0);
1953 assert(info->AlphaBits == 0);
1954 assert(info->LuminanceBits == 0);
1955 assert(info->IntensityBits == 0);
1956 }
1957 else if (info->BaseFormat == GL_RGBA) {
1958 assert(info->RedBits > 0);
1959 assert(info->GreenBits > 0);
1960 assert(info->BlueBits > 0);
1961 assert(info->AlphaBits > 0);
1962 assert(info->LuminanceBits == 0);
1963 assert(info->IntensityBits == 0);
1964 }
1965 else if (info->BaseFormat == GL_RG) {
1966 assert(info->RedBits > 0);
1967 assert(info->GreenBits > 0);
1968 assert(info->BlueBits == 0);
1969 assert(info->AlphaBits == 0);
1970 assert(info->LuminanceBits == 0);
1971 assert(info->IntensityBits == 0);
1972 }
1973 else if (info->BaseFormat == GL_RED) {
1974 assert(info->RedBits > 0);
1975 assert(info->GreenBits == 0);
1976 assert(info->BlueBits == 0);
1977 assert(info->AlphaBits == 0);
1978 assert(info->LuminanceBits == 0);
1979 assert(info->IntensityBits == 0);
1980 }
1981 else if (info->BaseFormat == GL_LUMINANCE) {
1982 assert(info->RedBits == 0);
1983 assert(info->GreenBits == 0);
1984 assert(info->BlueBits == 0);
1985 assert(info->AlphaBits == 0);
1986 assert(info->LuminanceBits > 0);
1987 assert(info->IntensityBits == 0);
1988 }
1989 else if (info->BaseFormat == GL_INTENSITY) {
1990 assert(info->RedBits == 0);
1991 assert(info->GreenBits == 0);
1992 assert(info->BlueBits == 0);
1993 assert(info->AlphaBits == 0);
1994 assert(info->LuminanceBits == 0);
1995 assert(info->IntensityBits > 0);
1996 }
1997 }
1998
1999 check_format_to_type_and_comps();
2000 }
2001
2002
2003
2004 /**
2005 * Return datatype and number of components per texel for the given gl_format.
2006 * Only used for mipmap generation code.
2007 */
2008 void
2009 _mesa_format_to_type_and_comps(gl_format format,
2010 GLenum *datatype, GLuint *comps)
2011 {
2012 switch (format) {
2013 case MESA_FORMAT_RGBA8888:
2014 case MESA_FORMAT_RGBA8888_REV:
2015 case MESA_FORMAT_ARGB8888:
2016 case MESA_FORMAT_ARGB8888_REV:
2017 case MESA_FORMAT_RGBX8888:
2018 case MESA_FORMAT_RGBX8888_REV:
2019 case MESA_FORMAT_XRGB8888:
2020 case MESA_FORMAT_XRGB8888_REV:
2021 *datatype = GL_UNSIGNED_BYTE;
2022 *comps = 4;
2023 return;
2024 case MESA_FORMAT_RGB888:
2025 case MESA_FORMAT_BGR888:
2026 *datatype = GL_UNSIGNED_BYTE;
2027 *comps = 3;
2028 return;
2029 case MESA_FORMAT_RGB565:
2030 case MESA_FORMAT_RGB565_REV:
2031 *datatype = GL_UNSIGNED_SHORT_5_6_5;
2032 *comps = 3;
2033 return;
2034
2035 case MESA_FORMAT_ARGB4444:
2036 case MESA_FORMAT_ARGB4444_REV:
2037 *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
2038 *comps = 4;
2039 return;
2040
2041 case MESA_FORMAT_ARGB1555:
2042 case MESA_FORMAT_ARGB1555_REV:
2043 *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2044 *comps = 4;
2045 return;
2046
2047 case MESA_FORMAT_ARGB2101010:
2048 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2049 *comps = 4;
2050 return;
2051
2052 case MESA_FORMAT_RGBA5551:
2053 *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
2054 *comps = 4;
2055 return;
2056
2057 case MESA_FORMAT_AL44:
2058 *datatype = MESA_UNSIGNED_BYTE_4_4;
2059 *comps = 2;
2060 return;
2061
2062 case MESA_FORMAT_AL88:
2063 case MESA_FORMAT_AL88_REV:
2064 case MESA_FORMAT_RG88:
2065 case MESA_FORMAT_RG88_REV:
2066 *datatype = GL_UNSIGNED_BYTE;
2067 *comps = 2;
2068 return;
2069
2070 case MESA_FORMAT_AL1616:
2071 case MESA_FORMAT_AL1616_REV:
2072 case MESA_FORMAT_RG1616:
2073 case MESA_FORMAT_RG1616_REV:
2074 *datatype = GL_UNSIGNED_SHORT;
2075 *comps = 2;
2076 return;
2077
2078 case MESA_FORMAT_R16:
2079 case MESA_FORMAT_A16:
2080 case MESA_FORMAT_L16:
2081 case MESA_FORMAT_I16:
2082 *datatype = GL_UNSIGNED_SHORT;
2083 *comps = 1;
2084 return;
2085
2086 case MESA_FORMAT_RGB332:
2087 *datatype = GL_UNSIGNED_BYTE_3_3_2;
2088 *comps = 3;
2089 return;
2090
2091 case MESA_FORMAT_A8:
2092 case MESA_FORMAT_L8:
2093 case MESA_FORMAT_I8:
2094 case MESA_FORMAT_R8:
2095 case MESA_FORMAT_S8:
2096 *datatype = GL_UNSIGNED_BYTE;
2097 *comps = 1;
2098 return;
2099
2100 case MESA_FORMAT_YCBCR:
2101 case MESA_FORMAT_YCBCR_REV:
2102 *datatype = GL_UNSIGNED_SHORT;
2103 *comps = 2;
2104 return;
2105
2106 case MESA_FORMAT_Z24_S8:
2107 *datatype = GL_UNSIGNED_INT_24_8_MESA;
2108 *comps = 2;
2109 return;
2110
2111 case MESA_FORMAT_S8_Z24:
2112 *datatype = GL_UNSIGNED_INT_8_24_REV_MESA;
2113 *comps = 2;
2114 return;
2115
2116 case MESA_FORMAT_Z16:
2117 *datatype = GL_UNSIGNED_SHORT;
2118 *comps = 1;
2119 return;
2120
2121 case MESA_FORMAT_X8_Z24:
2122 *datatype = GL_UNSIGNED_INT;
2123 *comps = 1;
2124 return;
2125
2126 case MESA_FORMAT_Z24_X8:
2127 *datatype = GL_UNSIGNED_INT;
2128 *comps = 1;
2129 return;
2130
2131 case MESA_FORMAT_Z32:
2132 *datatype = GL_UNSIGNED_INT;
2133 *comps = 1;
2134 return;
2135
2136 case MESA_FORMAT_Z32_FLOAT:
2137 *datatype = GL_FLOAT;
2138 *comps = 1;
2139 return;
2140
2141 case MESA_FORMAT_Z32_FLOAT_X24S8:
2142 *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
2143 *comps = 1;
2144 return;
2145
2146 case MESA_FORMAT_DUDV8:
2147 *datatype = GL_BYTE;
2148 *comps = 2;
2149 return;
2150
2151 case MESA_FORMAT_SIGNED_R8:
2152 case MESA_FORMAT_SIGNED_A8:
2153 case MESA_FORMAT_SIGNED_L8:
2154 case MESA_FORMAT_SIGNED_I8:
2155 *datatype = GL_BYTE;
2156 *comps = 1;
2157 return;
2158 case MESA_FORMAT_SIGNED_RG88_REV:
2159 case MESA_FORMAT_SIGNED_AL88:
2160 *datatype = GL_BYTE;
2161 *comps = 2;
2162 return;
2163 case MESA_FORMAT_SIGNED_RGBA8888:
2164 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2165 case MESA_FORMAT_SIGNED_RGBX8888:
2166 *datatype = GL_BYTE;
2167 *comps = 4;
2168 return;
2169
2170 case MESA_FORMAT_RGBA_16:
2171 *datatype = GL_UNSIGNED_SHORT;
2172 *comps = 4;
2173 return;
2174
2175 case MESA_FORMAT_SIGNED_R16:
2176 case MESA_FORMAT_SIGNED_A16:
2177 case MESA_FORMAT_SIGNED_L16:
2178 case MESA_FORMAT_SIGNED_I16:
2179 *datatype = GL_SHORT;
2180 *comps = 1;
2181 return;
2182 case MESA_FORMAT_SIGNED_GR1616:
2183 case MESA_FORMAT_SIGNED_AL1616:
2184 *datatype = GL_SHORT;
2185 *comps = 2;
2186 return;
2187 case MESA_FORMAT_SIGNED_RGB_16:
2188 *datatype = GL_SHORT;
2189 *comps = 3;
2190 return;
2191 case MESA_FORMAT_SIGNED_RGBA_16:
2192 *datatype = GL_SHORT;
2193 *comps = 4;
2194 return;
2195
2196 #if FEATURE_EXT_texture_sRGB
2197 case MESA_FORMAT_SRGB8:
2198 *datatype = GL_UNSIGNED_BYTE;
2199 *comps = 3;
2200 return;
2201 case MESA_FORMAT_SRGBA8:
2202 case MESA_FORMAT_SARGB8:
2203 *datatype = GL_UNSIGNED_BYTE;
2204 *comps = 4;
2205 return;
2206 case MESA_FORMAT_SL8:
2207 *datatype = GL_UNSIGNED_BYTE;
2208 *comps = 1;
2209 return;
2210 case MESA_FORMAT_SLA8:
2211 *datatype = GL_UNSIGNED_BYTE;
2212 *comps = 2;
2213 return;
2214 #endif
2215
2216 #if FEATURE_texture_fxt1
2217 case MESA_FORMAT_RGB_FXT1:
2218 case MESA_FORMAT_RGBA_FXT1:
2219 #endif
2220 #if FEATURE_texture_s3tc
2221 case MESA_FORMAT_RGB_DXT1:
2222 case MESA_FORMAT_RGBA_DXT1:
2223 case MESA_FORMAT_RGBA_DXT3:
2224 case MESA_FORMAT_RGBA_DXT5:
2225 #if FEATURE_EXT_texture_sRGB
2226 case MESA_FORMAT_SRGB_DXT1:
2227 case MESA_FORMAT_SRGBA_DXT1:
2228 case MESA_FORMAT_SRGBA_DXT3:
2229 case MESA_FORMAT_SRGBA_DXT5:
2230 #endif
2231 #endif
2232 case MESA_FORMAT_RED_RGTC1:
2233 case MESA_FORMAT_SIGNED_RED_RGTC1:
2234 case MESA_FORMAT_RG_RGTC2:
2235 case MESA_FORMAT_SIGNED_RG_RGTC2:
2236 case MESA_FORMAT_L_LATC1:
2237 case MESA_FORMAT_SIGNED_L_LATC1:
2238 case MESA_FORMAT_LA_LATC2:
2239 case MESA_FORMAT_SIGNED_LA_LATC2:
2240 /* XXX generate error instead? */
2241 *datatype = GL_UNSIGNED_BYTE;
2242 *comps = 0;
2243 return;
2244
2245 case MESA_FORMAT_RGBA_FLOAT32:
2246 *datatype = GL_FLOAT;
2247 *comps = 4;
2248 return;
2249 case MESA_FORMAT_RGBA_FLOAT16:
2250 *datatype = GL_HALF_FLOAT_ARB;
2251 *comps = 4;
2252 return;
2253 case MESA_FORMAT_RGB_FLOAT32:
2254 *datatype = GL_FLOAT;
2255 *comps = 3;
2256 return;
2257 case MESA_FORMAT_RGB_FLOAT16:
2258 *datatype = GL_HALF_FLOAT_ARB;
2259 *comps = 3;
2260 return;
2261 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2262 case MESA_FORMAT_RG_FLOAT32:
2263 *datatype = GL_FLOAT;
2264 *comps = 2;
2265 return;
2266 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2267 case MESA_FORMAT_RG_FLOAT16:
2268 *datatype = GL_HALF_FLOAT_ARB;
2269 *comps = 2;
2270 return;
2271 case MESA_FORMAT_ALPHA_FLOAT32:
2272 case MESA_FORMAT_LUMINANCE_FLOAT32:
2273 case MESA_FORMAT_INTENSITY_FLOAT32:
2274 case MESA_FORMAT_R_FLOAT32:
2275 *datatype = GL_FLOAT;
2276 *comps = 1;
2277 return;
2278 case MESA_FORMAT_ALPHA_FLOAT16:
2279 case MESA_FORMAT_LUMINANCE_FLOAT16:
2280 case MESA_FORMAT_INTENSITY_FLOAT16:
2281 case MESA_FORMAT_R_FLOAT16:
2282 *datatype = GL_HALF_FLOAT_ARB;
2283 *comps = 1;
2284 return;
2285
2286 case MESA_FORMAT_ALPHA_UINT8:
2287 case MESA_FORMAT_LUMINANCE_UINT8:
2288 case MESA_FORMAT_INTENSITY_UINT8:
2289 *datatype = GL_UNSIGNED_BYTE;
2290 *comps = 1;
2291 return;
2292 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2293 *datatype = GL_UNSIGNED_BYTE;
2294 *comps = 2;
2295 return;
2296
2297 case MESA_FORMAT_ALPHA_UINT16:
2298 case MESA_FORMAT_LUMINANCE_UINT16:
2299 case MESA_FORMAT_INTENSITY_UINT16:
2300 *datatype = GL_UNSIGNED_SHORT;
2301 *comps = 1;
2302 return;
2303 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2304 *datatype = GL_UNSIGNED_SHORT;
2305 *comps = 2;
2306 return;
2307 case MESA_FORMAT_ALPHA_UINT32:
2308 case MESA_FORMAT_LUMINANCE_UINT32:
2309 case MESA_FORMAT_INTENSITY_UINT32:
2310 *datatype = GL_UNSIGNED_INT;
2311 *comps = 1;
2312 return;
2313 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2314 *datatype = GL_UNSIGNED_INT;
2315 *comps = 2;
2316 return;
2317 case MESA_FORMAT_ALPHA_INT8:
2318 case MESA_FORMAT_LUMINANCE_INT8:
2319 case MESA_FORMAT_INTENSITY_INT8:
2320 *datatype = GL_BYTE;
2321 *comps = 1;
2322 return;
2323 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2324 *datatype = GL_BYTE;
2325 *comps = 2;
2326 return;
2327
2328 case MESA_FORMAT_ALPHA_INT16:
2329 case MESA_FORMAT_LUMINANCE_INT16:
2330 case MESA_FORMAT_INTENSITY_INT16:
2331 *datatype = GL_SHORT;
2332 *comps = 1;
2333 return;
2334 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2335 *datatype = GL_SHORT;
2336 *comps = 2;
2337 return;
2338
2339 case MESA_FORMAT_ALPHA_INT32:
2340 case MESA_FORMAT_LUMINANCE_INT32:
2341 case MESA_FORMAT_INTENSITY_INT32:
2342 *datatype = GL_INT;
2343 *comps = 1;
2344 return;
2345 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2346 *datatype = GL_INT;
2347 *comps = 2;
2348 return;
2349
2350 case MESA_FORMAT_R_INT8:
2351 *datatype = GL_BYTE;
2352 *comps = 1;
2353 return;
2354 case MESA_FORMAT_RG_INT8:
2355 *datatype = GL_BYTE;
2356 *comps = 2;
2357 return;
2358 case MESA_FORMAT_RGB_INT8:
2359 *datatype = GL_BYTE;
2360 *comps = 3;
2361 return;
2362 case MESA_FORMAT_RGBA_INT8:
2363 *datatype = GL_BYTE;
2364 *comps = 4;
2365 return;
2366 case MESA_FORMAT_R_INT16:
2367 *datatype = GL_SHORT;
2368 *comps = 1;
2369 return;
2370 case MESA_FORMAT_RG_INT16:
2371 *datatype = GL_SHORT;
2372 *comps = 2;
2373 return;
2374 case MESA_FORMAT_RGB_INT16:
2375 *datatype = GL_SHORT;
2376 *comps = 3;
2377 return;
2378 case MESA_FORMAT_RGBA_INT16:
2379 *datatype = GL_SHORT;
2380 *comps = 4;
2381 return;
2382 case MESA_FORMAT_R_INT32:
2383 *datatype = GL_INT;
2384 *comps = 1;
2385 return;
2386 case MESA_FORMAT_RG_INT32:
2387 *datatype = GL_INT;
2388 *comps = 2;
2389 return;
2390 case MESA_FORMAT_RGB_INT32:
2391 *datatype = GL_INT;
2392 *comps = 3;
2393 return;
2394 case MESA_FORMAT_RGBA_INT32:
2395 *datatype = GL_INT;
2396 *comps = 4;
2397 return;
2398
2399 /**
2400 * \name Non-normalized unsigned integer formats.
2401 */
2402 case MESA_FORMAT_R_UINT8:
2403 *datatype = GL_UNSIGNED_BYTE;
2404 *comps = 1;
2405 return;
2406 case MESA_FORMAT_RG_UINT8:
2407 *datatype = GL_UNSIGNED_BYTE;
2408 *comps = 2;
2409 return;
2410 case MESA_FORMAT_RGB_UINT8:
2411 *datatype = GL_UNSIGNED_BYTE;
2412 *comps = 3;
2413 return;
2414 case MESA_FORMAT_RGBA_UINT8:
2415 *datatype = GL_UNSIGNED_BYTE;
2416 *comps = 4;
2417 return;
2418 case MESA_FORMAT_R_UINT16:
2419 *datatype = GL_UNSIGNED_SHORT;
2420 *comps = 1;
2421 return;
2422 case MESA_FORMAT_RG_UINT16:
2423 *datatype = GL_UNSIGNED_SHORT;
2424 *comps = 2;
2425 return;
2426 case MESA_FORMAT_RGB_UINT16:
2427 *datatype = GL_UNSIGNED_SHORT;
2428 *comps = 3;
2429 return;
2430 case MESA_FORMAT_RGBA_UINT16:
2431 *datatype = GL_UNSIGNED_SHORT;
2432 *comps = 4;
2433 return;
2434 case MESA_FORMAT_R_UINT32:
2435 *datatype = GL_UNSIGNED_INT;
2436 *comps = 1;
2437 return;
2438 case MESA_FORMAT_RG_UINT32:
2439 *datatype = GL_UNSIGNED_INT;
2440 *comps = 2;
2441 return;
2442 case MESA_FORMAT_RGB_UINT32:
2443 *datatype = GL_UNSIGNED_INT;
2444 *comps = 3;
2445 return;
2446 case MESA_FORMAT_RGBA_UINT32:
2447 *datatype = GL_UNSIGNED_INT;
2448 *comps = 4;
2449 return;
2450
2451 case MESA_FORMAT_RGB9_E5_FLOAT:
2452 *datatype = GL_UNSIGNED_INT_5_9_9_9_REV;
2453 *comps = 3;
2454 return;
2455
2456 case MESA_FORMAT_R11_G11_B10_FLOAT:
2457 *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV;
2458 *comps = 3;
2459 return;
2460
2461 case MESA_FORMAT_ARGB2101010_UINT:
2462 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2463 *comps = 4;
2464 return;
2465
2466 case MESA_FORMAT_COUNT:
2467 assert(0);
2468 return;
2469
2470 case MESA_FORMAT_NONE:
2471 /* For debug builds, warn if any formats are not handled */
2472 #ifdef DEBUG
2473 default:
2474 #endif
2475 _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2476 _mesa_get_format_name(format));
2477 *datatype = 0;
2478 *comps = 1;
2479 }
2480 }
2481
2482 /**
2483 * Returns a MESA_FORMAT describing pixels with the given format/type if
2484 * available, or MESA_FORMAT_NONE.
2485 *
2486 * If a format is returned, it should be suitable to memcpy
2487 * _mesa_get_format_bytes() at a time to move the pixel data.
2488 */
2489 GLboolean
2490 _mesa_format_matches_format_and_type(gl_format gl_format,
2491 GLenum format, GLenum type)
2492 {
2493 const GLboolean littleEndian = _mesa_little_endian();
2494
2495 /* Note: When reading a GL format/type combination, the format lists channel
2496 * assignments from most significant channel in the type to least
2497 * significant. A type with _REV indicates that the assignments are swapped,
2498 * so they are listed from least significant to most significant.
2499 *
2500 * For sanity, please keep this switch statement ordered the same as the enum
2501 * in formats.h.
2502 *
2503 * This matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2504 */
2505
2506 switch (gl_format) {
2507
2508 case MESA_FORMAT_NONE:
2509 case MESA_FORMAT_COUNT:
2510 return GL_FALSE;
2511
2512 case MESA_FORMAT_RGBA8888:
2513 return ((format == GL_RGBA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2514 (type == GL_UNSIGNED_BYTE && !littleEndian))) ||
2515 (format == GL_ABGR_EXT && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2516 (type == GL_UNSIGNED_BYTE && littleEndian))));
2517
2518 case MESA_FORMAT_RGBA8888_REV:
2519 return ((format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV));
2520
2521 case MESA_FORMAT_ARGB8888:
2522 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2523 (type == GL_UNSIGNED_BYTE && littleEndian))));
2524
2525 case MESA_FORMAT_ARGB8888_REV:
2526 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2527 (type == GL_UNSIGNED_BYTE && !littleEndian))));
2528
2529 case MESA_FORMAT_RGBX8888:
2530 case MESA_FORMAT_RGBX8888_REV:
2531 return GL_FALSE;
2532
2533 case MESA_FORMAT_XRGB8888:
2534 case MESA_FORMAT_XRGB8888_REV:
2535 return GL_FALSE;
2536
2537 case MESA_FORMAT_RGB888:
2538 return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2539
2540 case MESA_FORMAT_BGR888:
2541 return GL_FALSE;
2542
2543 case MESA_FORMAT_RGB565:
2544 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
2545 case MESA_FORMAT_RGB565_REV:
2546 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2547 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2548 * according to formats.h, so they can't be matched.
2549 */
2550 return GL_FALSE;
2551
2552 case MESA_FORMAT_ARGB4444:
2553 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV;
2554 case MESA_FORMAT_ARGB4444_REV:
2555 return GL_FALSE;
2556
2557 case MESA_FORMAT_RGBA5551:
2558 return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1;
2559
2560 case MESA_FORMAT_ARGB1555:
2561 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV;
2562 case MESA_FORMAT_ARGB1555_REV:
2563 return GL_FALSE;
2564
2565 case MESA_FORMAT_AL44:
2566 return GL_FALSE;
2567 case MESA_FORMAT_AL88:
2568 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2569 case MESA_FORMAT_AL88_REV:
2570 return GL_FALSE;
2571
2572 case MESA_FORMAT_AL1616:
2573 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2574 case MESA_FORMAT_AL1616_REV:
2575 return GL_FALSE;
2576
2577 case MESA_FORMAT_RGB332:
2578 return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2579
2580 case MESA_FORMAT_A8:
2581 return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2582 case MESA_FORMAT_A16:
2583 return format == GL_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2584 case MESA_FORMAT_L8:
2585 return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2586 case MESA_FORMAT_L16:
2587 return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT && littleEndian;
2588 case MESA_FORMAT_I8:
2589 return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2590 case MESA_FORMAT_I16:
2591 return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT && littleEndian;
2592
2593 case MESA_FORMAT_YCBCR:
2594 case MESA_FORMAT_YCBCR_REV:
2595 return GL_FALSE;
2596
2597 case MESA_FORMAT_R8:
2598 return format == GL_RED && type == GL_UNSIGNED_BYTE;
2599 case MESA_FORMAT_RG88:
2600 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2601 case MESA_FORMAT_RG88_REV:
2602 return GL_FALSE;
2603
2604 case MESA_FORMAT_R16:
2605 return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian;
2606 case MESA_FORMAT_RG1616:
2607 return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian;
2608 case MESA_FORMAT_RG1616_REV:
2609 return GL_FALSE;
2610
2611 case MESA_FORMAT_ARGB2101010:
2612 return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV;
2613
2614 case MESA_FORMAT_Z24_S8:
2615 return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8;
2616 case MESA_FORMAT_Z24_X8:
2617 case MESA_FORMAT_S8_Z24:
2618 return GL_FALSE;
2619
2620 case MESA_FORMAT_Z16:
2621 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT;
2622
2623 case MESA_FORMAT_X8_Z24:
2624 return GL_FALSE;
2625
2626 case MESA_FORMAT_Z32:
2627 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT;
2628
2629 case MESA_FORMAT_S8:
2630 return GL_FALSE;
2631
2632 case MESA_FORMAT_SRGB8:
2633 case MESA_FORMAT_SRGBA8:
2634 case MESA_FORMAT_SARGB8:
2635 case MESA_FORMAT_SL8:
2636 case MESA_FORMAT_SLA8:
2637 case MESA_FORMAT_SRGB_DXT1:
2638 case MESA_FORMAT_SRGBA_DXT1:
2639 case MESA_FORMAT_SRGBA_DXT3:
2640 case MESA_FORMAT_SRGBA_DXT5:
2641 return GL_FALSE;
2642
2643 case MESA_FORMAT_RGB_FXT1:
2644 case MESA_FORMAT_RGBA_FXT1:
2645 case MESA_FORMAT_RGB_DXT1:
2646 case MESA_FORMAT_RGBA_DXT1:
2647 case MESA_FORMAT_RGBA_DXT3:
2648 case MESA_FORMAT_RGBA_DXT5:
2649 return GL_FALSE;
2650
2651 case MESA_FORMAT_RGBA_FLOAT32:
2652 return format == GL_RGBA && type == GL_FLOAT;
2653 case MESA_FORMAT_RGBA_FLOAT16:
2654 return format == GL_RGBA && type == GL_HALF_FLOAT;
2655
2656 case MESA_FORMAT_RGB_FLOAT32:
2657 return format == GL_RGB && type == GL_FLOAT;
2658 case MESA_FORMAT_RGB_FLOAT16:
2659 return format == GL_RGB && type == GL_HALF_FLOAT;
2660
2661 case MESA_FORMAT_ALPHA_FLOAT32:
2662 return format == GL_ALPHA && type == GL_FLOAT;
2663 case MESA_FORMAT_ALPHA_FLOAT16:
2664 return format == GL_ALPHA && type == GL_HALF_FLOAT;
2665
2666 case MESA_FORMAT_LUMINANCE_FLOAT32:
2667 return format == GL_LUMINANCE && type == GL_FLOAT;
2668 case MESA_FORMAT_LUMINANCE_FLOAT16:
2669 return format == GL_LUMINANCE && type == GL_HALF_FLOAT;
2670
2671 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2672 return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT;
2673 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2674 return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT;
2675
2676 case MESA_FORMAT_INTENSITY_FLOAT32:
2677 return format == GL_INTENSITY && type == GL_FLOAT;
2678 case MESA_FORMAT_INTENSITY_FLOAT16:
2679 return format == GL_INTENSITY && type == GL_HALF_FLOAT;
2680
2681 case MESA_FORMAT_R_FLOAT32:
2682 return format == GL_RED && type == GL_FLOAT;
2683 case MESA_FORMAT_R_FLOAT16:
2684 return format == GL_RED && type == GL_HALF_FLOAT;
2685
2686 case MESA_FORMAT_RG_FLOAT32:
2687 return format == GL_RG && type == GL_FLOAT;
2688 case MESA_FORMAT_RG_FLOAT16:
2689 return format == GL_RG && type == GL_HALF_FLOAT;
2690
2691 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2692 case MESA_FORMAT_ALPHA_UINT8:
2693 case MESA_FORMAT_ALPHA_UINT16:
2694 case MESA_FORMAT_ALPHA_UINT32:
2695 case MESA_FORMAT_ALPHA_INT8:
2696 case MESA_FORMAT_ALPHA_INT16:
2697 case MESA_FORMAT_ALPHA_INT32:
2698 return GL_FALSE;
2699
2700 case MESA_FORMAT_INTENSITY_UINT8:
2701 case MESA_FORMAT_INTENSITY_UINT16:
2702 case MESA_FORMAT_INTENSITY_UINT32:
2703 case MESA_FORMAT_INTENSITY_INT8:
2704 case MESA_FORMAT_INTENSITY_INT16:
2705 case MESA_FORMAT_INTENSITY_INT32:
2706 return GL_FALSE;
2707
2708 case MESA_FORMAT_LUMINANCE_UINT8:
2709 case MESA_FORMAT_LUMINANCE_UINT16:
2710 case MESA_FORMAT_LUMINANCE_UINT32:
2711 case MESA_FORMAT_LUMINANCE_INT8:
2712 case MESA_FORMAT_LUMINANCE_INT16:
2713 case MESA_FORMAT_LUMINANCE_INT32:
2714 return GL_FALSE;
2715
2716 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2717 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2718 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2719 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2720 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2721 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2722 return GL_FALSE;
2723
2724 case MESA_FORMAT_R_INT8:
2725 case MESA_FORMAT_RG_INT8:
2726 case MESA_FORMAT_RGB_INT8:
2727 case MESA_FORMAT_RGBA_INT8:
2728 case MESA_FORMAT_R_INT16:
2729 case MESA_FORMAT_RG_INT16:
2730 case MESA_FORMAT_RGB_INT16:
2731 case MESA_FORMAT_RGBA_INT16:
2732 case MESA_FORMAT_R_INT32:
2733 case MESA_FORMAT_RG_INT32:
2734 case MESA_FORMAT_RGB_INT32:
2735 case MESA_FORMAT_RGBA_INT32:
2736 return GL_FALSE;
2737
2738 case MESA_FORMAT_R_UINT8:
2739 case MESA_FORMAT_RG_UINT8:
2740 case MESA_FORMAT_RGB_UINT8:
2741 case MESA_FORMAT_RGBA_UINT8:
2742 case MESA_FORMAT_R_UINT16:
2743 case MESA_FORMAT_RG_UINT16:
2744 case MESA_FORMAT_RGB_UINT16:
2745 case MESA_FORMAT_RGBA_UINT16:
2746 case MESA_FORMAT_R_UINT32:
2747 case MESA_FORMAT_RG_UINT32:
2748 case MESA_FORMAT_RGB_UINT32:
2749 case MESA_FORMAT_RGBA_UINT32:
2750 return GL_FALSE;
2751
2752 case MESA_FORMAT_DUDV8:
2753 case MESA_FORMAT_SIGNED_R8:
2754 case MESA_FORMAT_SIGNED_RG88_REV:
2755 case MESA_FORMAT_SIGNED_RGBX8888:
2756 case MESA_FORMAT_SIGNED_RGBA8888:
2757 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2758 case MESA_FORMAT_SIGNED_R16:
2759 case MESA_FORMAT_SIGNED_GR1616:
2760 case MESA_FORMAT_SIGNED_RGB_16:
2761 case MESA_FORMAT_SIGNED_RGBA_16:
2762 case MESA_FORMAT_RGBA_16:
2763 /* FINISHME: SNORM */
2764 return GL_FALSE;
2765
2766 case MESA_FORMAT_RED_RGTC1:
2767 case MESA_FORMAT_SIGNED_RED_RGTC1:
2768 case MESA_FORMAT_RG_RGTC2:
2769 case MESA_FORMAT_SIGNED_RG_RGTC2:
2770 return GL_FALSE;
2771
2772 case MESA_FORMAT_L_LATC1:
2773 case MESA_FORMAT_SIGNED_L_LATC1:
2774 case MESA_FORMAT_LA_LATC2:
2775 case MESA_FORMAT_SIGNED_LA_LATC2:
2776 return GL_FALSE;
2777
2778 case MESA_FORMAT_SIGNED_A8:
2779 case MESA_FORMAT_SIGNED_L8:
2780 case MESA_FORMAT_SIGNED_AL88:
2781 case MESA_FORMAT_SIGNED_I8:
2782 case MESA_FORMAT_SIGNED_A16:
2783 case MESA_FORMAT_SIGNED_L16:
2784 case MESA_FORMAT_SIGNED_AL1616:
2785 case MESA_FORMAT_SIGNED_I16:
2786 /* FINISHME: SNORM */
2787 return GL_FALSE;
2788
2789 case MESA_FORMAT_ARGB2101010_UINT:
2790 return GL_FALSE;
2791
2792 case MESA_FORMAT_RGB9_E5_FLOAT:
2793 return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV;
2794 case MESA_FORMAT_R11_G11_B10_FLOAT:
2795 return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV;
2796
2797 case MESA_FORMAT_Z32_FLOAT:
2798 return format == GL_DEPTH_COMPONENT && type == GL_FLOAT;
2799
2800 case MESA_FORMAT_Z32_FLOAT_X24S8:
2801 return GL_FALSE;
2802 }
2803
2804 return GL_FALSE;
2805 }