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mesa: add MESA_FORMAT_RGBX8888 and MESA_FORMAT_RGBX8888_REV
[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
1501
1502
1503 static const struct gl_format_info *
1504 _mesa_get_format_info(gl_format format)
1505 {
1506 const struct gl_format_info *info = &format_info[format];
1507 assert(info->Name == format);
1508 return info;
1509 }
1510
1511
1512 /** Return string name of format (for debugging) */
1513 const char *
1514 _mesa_get_format_name(gl_format format)
1515 {
1516 const struct gl_format_info *info = _mesa_get_format_info(format);
1517 return info->StrName;
1518 }
1519
1520
1521
1522 /**
1523 * Return bytes needed to store a block of pixels in the given format.
1524 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1525 * a block may be 4x4 or 8x4, etc.
1526 *
1527 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1528 */
1529 GLint
1530 _mesa_get_format_bytes(gl_format format)
1531 {
1532 const struct gl_format_info *info = _mesa_get_format_info(format);
1533 ASSERT(info->BytesPerBlock);
1534 return info->BytesPerBlock;
1535 }
1536
1537
1538 /**
1539 * Return bits per component for the given format.
1540 * \param format one of MESA_FORMAT_x
1541 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1542 */
1543 GLint
1544 _mesa_get_format_bits(gl_format format, GLenum pname)
1545 {
1546 const struct gl_format_info *info = _mesa_get_format_info(format);
1547
1548 switch (pname) {
1549 case GL_RED_BITS:
1550 case GL_TEXTURE_RED_SIZE:
1551 case GL_RENDERBUFFER_RED_SIZE_EXT:
1552 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1553 return info->RedBits;
1554 case GL_GREEN_BITS:
1555 case GL_TEXTURE_GREEN_SIZE:
1556 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1557 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1558 return info->GreenBits;
1559 case GL_BLUE_BITS:
1560 case GL_TEXTURE_BLUE_SIZE:
1561 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1562 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1563 return info->BlueBits;
1564 case GL_ALPHA_BITS:
1565 case GL_TEXTURE_ALPHA_SIZE:
1566 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1567 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1568 return info->AlphaBits;
1569 case GL_TEXTURE_INTENSITY_SIZE:
1570 return info->IntensityBits;
1571 case GL_TEXTURE_LUMINANCE_SIZE:
1572 return info->LuminanceBits;
1573 case GL_INDEX_BITS:
1574 return info->IndexBits;
1575 case GL_DEPTH_BITS:
1576 case GL_TEXTURE_DEPTH_SIZE_ARB:
1577 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1578 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1579 return info->DepthBits;
1580 case GL_STENCIL_BITS:
1581 case GL_TEXTURE_STENCIL_SIZE_EXT:
1582 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1583 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1584 return info->StencilBits;
1585 default:
1586 _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
1587 return 0;
1588 }
1589 }
1590
1591
1592 /**
1593 * Return the data type (or more specifically, the data representation)
1594 * for the given format.
1595 * The return value will be one of:
1596 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1597 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1598 * GL_UNSIGNED_INT = an ordinary unsigned integer
1599 * GL_INT = an ordinary signed integer
1600 * GL_FLOAT = an ordinary float
1601 */
1602 GLenum
1603 _mesa_get_format_datatype(gl_format format)
1604 {
1605 const struct gl_format_info *info = _mesa_get_format_info(format);
1606 return info->DataType;
1607 }
1608
1609
1610 /**
1611 * Return the basic format for the given type. The result will be one of
1612 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1613 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1614 */
1615 GLenum
1616 _mesa_get_format_base_format(gl_format format)
1617 {
1618 const struct gl_format_info *info = _mesa_get_format_info(format);
1619 return info->BaseFormat;
1620 }
1621
1622
1623 /**
1624 * Return the block size (in pixels) for the given format. Normally
1625 * the block size is 1x1. But compressed formats will have block sizes
1626 * of 4x4 or 8x4 pixels, etc.
1627 * \param bw returns block width in pixels
1628 * \param bh returns block height in pixels
1629 */
1630 void
1631 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1632 {
1633 const struct gl_format_info *info = _mesa_get_format_info(format);
1634 *bw = info->BlockWidth;
1635 *bh = info->BlockHeight;
1636 }
1637
1638
1639 /** Is the given format a compressed format? */
1640 GLboolean
1641 _mesa_is_format_compressed(gl_format format)
1642 {
1643 const struct gl_format_info *info = _mesa_get_format_info(format);
1644 return info->BlockWidth > 1 || info->BlockHeight > 1;
1645 }
1646
1647
1648 /**
1649 * Determine if the given format represents a packed depth/stencil buffer.
1650 */
1651 GLboolean
1652 _mesa_is_format_packed_depth_stencil(gl_format format)
1653 {
1654 const struct gl_format_info *info = _mesa_get_format_info(format);
1655
1656 return info->BaseFormat == GL_DEPTH_STENCIL;
1657 }
1658
1659
1660 /**
1661 * Is the given format a signed/unsigned integer color format?
1662 */
1663 GLboolean
1664 _mesa_is_format_integer_color(gl_format format)
1665 {
1666 const struct gl_format_info *info = _mesa_get_format_info(format);
1667 return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
1668 info->BaseFormat != GL_DEPTH_COMPONENT &&
1669 info->BaseFormat != GL_DEPTH_STENCIL &&
1670 info->BaseFormat != GL_STENCIL_INDEX;
1671 }
1672
1673
1674 /**
1675 * Return color encoding for given format.
1676 * \return GL_LINEAR or GL_SRGB
1677 */
1678 GLenum
1679 _mesa_get_format_color_encoding(gl_format format)
1680 {
1681 /* XXX this info should be encoded in gl_format_info */
1682 switch (format) {
1683 case MESA_FORMAT_SRGB8:
1684 case MESA_FORMAT_SRGBA8:
1685 case MESA_FORMAT_SARGB8:
1686 case MESA_FORMAT_SL8:
1687 case MESA_FORMAT_SLA8:
1688 case MESA_FORMAT_SRGB_DXT1:
1689 case MESA_FORMAT_SRGBA_DXT1:
1690 case MESA_FORMAT_SRGBA_DXT3:
1691 case MESA_FORMAT_SRGBA_DXT5:
1692 return GL_SRGB;
1693 default:
1694 return GL_LINEAR;
1695 }
1696 }
1697
1698
1699 /**
1700 * For an sRGB format, return the corresponding linear color space format.
1701 * For non-sRGB formats, return the format as-is.
1702 */
1703 gl_format
1704 _mesa_get_srgb_format_linear(gl_format format)
1705 {
1706 switch (format) {
1707 case MESA_FORMAT_SRGB8:
1708 format = MESA_FORMAT_RGB888;
1709 break;
1710 case MESA_FORMAT_SRGBA8:
1711 format = MESA_FORMAT_RGBA8888;
1712 break;
1713 case MESA_FORMAT_SARGB8:
1714 format = MESA_FORMAT_ARGB8888;
1715 break;
1716 case MESA_FORMAT_SL8:
1717 format = MESA_FORMAT_L8;
1718 break;
1719 case MESA_FORMAT_SLA8:
1720 format = MESA_FORMAT_AL88;
1721 break;
1722 case MESA_FORMAT_SRGB_DXT1:
1723 format = MESA_FORMAT_RGB_DXT1;
1724 break;
1725 case MESA_FORMAT_SRGBA_DXT1:
1726 format = MESA_FORMAT_RGBA_DXT1;
1727 break;
1728 case MESA_FORMAT_SRGBA_DXT3:
1729 format = MESA_FORMAT_RGBA_DXT3;
1730 break;
1731 case MESA_FORMAT_SRGBA_DXT5:
1732 format = MESA_FORMAT_RGBA_DXT5;
1733 break;
1734 default:
1735 break;
1736 }
1737 return format;
1738 }
1739
1740
1741 /**
1742 * If the given format is a compressed format, return a corresponding
1743 * uncompressed format.
1744 */
1745 gl_format
1746 _mesa_get_uncompressed_format(gl_format format)
1747 {
1748 switch (format) {
1749 case MESA_FORMAT_RGB_FXT1:
1750 return MESA_FORMAT_RGB888;
1751 case MESA_FORMAT_RGBA_FXT1:
1752 return MESA_FORMAT_RGBA8888;
1753 case MESA_FORMAT_RGB_DXT1:
1754 case MESA_FORMAT_SRGB_DXT1:
1755 return MESA_FORMAT_RGB888;
1756 case MESA_FORMAT_RGBA_DXT1:
1757 case MESA_FORMAT_SRGBA_DXT1:
1758 return MESA_FORMAT_RGBA8888;
1759 case MESA_FORMAT_RGBA_DXT3:
1760 case MESA_FORMAT_SRGBA_DXT3:
1761 return MESA_FORMAT_RGBA8888;
1762 case MESA_FORMAT_RGBA_DXT5:
1763 case MESA_FORMAT_SRGBA_DXT5:
1764 return MESA_FORMAT_RGBA8888;
1765 case MESA_FORMAT_RED_RGTC1:
1766 return MESA_FORMAT_R8;
1767 case MESA_FORMAT_SIGNED_RED_RGTC1:
1768 return MESA_FORMAT_SIGNED_R8;
1769 case MESA_FORMAT_RG_RGTC2:
1770 return MESA_FORMAT_RG88;
1771 case MESA_FORMAT_SIGNED_RG_RGTC2:
1772 return MESA_FORMAT_SIGNED_RG88_REV;
1773 case MESA_FORMAT_L_LATC1:
1774 return MESA_FORMAT_L8;
1775 case MESA_FORMAT_SIGNED_L_LATC1:
1776 return MESA_FORMAT_SIGNED_L8;
1777 case MESA_FORMAT_LA_LATC2:
1778 return MESA_FORMAT_AL88;
1779 case MESA_FORMAT_SIGNED_LA_LATC2:
1780 return MESA_FORMAT_SIGNED_AL88;
1781 default:
1782 #ifdef DEBUG
1783 assert(!_mesa_is_format_compressed(format));
1784 #endif
1785 return format;
1786 }
1787 }
1788
1789
1790 GLuint
1791 _mesa_format_num_components(gl_format format)
1792 {
1793 const struct gl_format_info *info = _mesa_get_format_info(format);
1794 return ((info->RedBits > 0) +
1795 (info->GreenBits > 0) +
1796 (info->BlueBits > 0) +
1797 (info->AlphaBits > 0) +
1798 (info->LuminanceBits > 0) +
1799 (info->IntensityBits > 0) +
1800 (info->DepthBits > 0) +
1801 (info->StencilBits > 0));
1802 }
1803
1804
1805 /**
1806 * Return number of bytes needed to store an image of the given size
1807 * in the given format.
1808 */
1809 GLuint
1810 _mesa_format_image_size(gl_format format, GLsizei width,
1811 GLsizei height, GLsizei depth)
1812 {
1813 const struct gl_format_info *info = _mesa_get_format_info(format);
1814 /* Strictly speaking, a conditional isn't needed here */
1815 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1816 /* compressed format (2D only for now) */
1817 const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
1818 const GLuint wblocks = (width + bw - 1) / bw;
1819 const GLuint hblocks = (height + bh - 1) / bh;
1820 const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
1821 assert(depth == 1);
1822 return sz;
1823 }
1824 else {
1825 /* non-compressed */
1826 const GLuint sz = width * height * depth * info->BytesPerBlock;
1827 return sz;
1828 }
1829 }
1830
1831
1832 /**
1833 * Same as _mesa_format_image_size() but returns a 64-bit value to
1834 * accomodate very large textures.
1835 */
1836 uint64_t
1837 _mesa_format_image_size64(gl_format format, GLsizei width,
1838 GLsizei height, GLsizei depth)
1839 {
1840 const struct gl_format_info *info = _mesa_get_format_info(format);
1841 /* Strictly speaking, a conditional isn't needed here */
1842 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1843 /* compressed format (2D only for now) */
1844 const uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
1845 const uint64_t wblocks = (width + bw - 1) / bw;
1846 const uint64_t hblocks = (height + bh - 1) / bh;
1847 const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
1848 assert(depth == 1);
1849 return sz;
1850 }
1851 else {
1852 /* non-compressed */
1853 const uint64_t sz = ((uint64_t) width *
1854 (uint64_t) height *
1855 (uint64_t) depth *
1856 info->BytesPerBlock);
1857 return sz;
1858 }
1859 }
1860
1861
1862
1863 GLint
1864 _mesa_format_row_stride(gl_format format, GLsizei width)
1865 {
1866 const struct gl_format_info *info = _mesa_get_format_info(format);
1867 /* Strictly speaking, a conditional isn't needed here */
1868 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1869 /* compressed format */
1870 const GLuint bw = info->BlockWidth;
1871 const GLuint wblocks = (width + bw - 1) / bw;
1872 const GLint stride = wblocks * info->BytesPerBlock;
1873 return stride;
1874 }
1875 else {
1876 const GLint stride = width * info->BytesPerBlock;
1877 return stride;
1878 }
1879 }
1880
1881
1882 /**
1883 * Debug/test: check that all formats are handled in the
1884 * _mesa_format_to_type_and_comps() function. When new pixel formats
1885 * are added to Mesa, that function needs to be updated.
1886 * This is a no-op after the first call.
1887 */
1888 static void
1889 check_format_to_type_and_comps(void)
1890 {
1891 gl_format f;
1892
1893 for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
1894 GLenum datatype = 0;
1895 GLuint comps = 0;
1896 /* This function will emit a problem/warning if the format is
1897 * not handled.
1898 */
1899 _mesa_format_to_type_and_comps(f, &datatype, &comps);
1900 }
1901 }
1902
1903
1904 /**
1905 * Do sanity checking of the format info table.
1906 */
1907 void
1908 _mesa_test_formats(void)
1909 {
1910 GLuint i;
1911
1912 assert(Elements(format_info) == MESA_FORMAT_COUNT);
1913
1914 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
1915 const struct gl_format_info *info = _mesa_get_format_info(i);
1916 assert(info);
1917
1918 assert(info->Name == i);
1919
1920 if (info->Name == MESA_FORMAT_NONE)
1921 continue;
1922
1923 if (info->BlockWidth == 1 && info->BlockHeight == 1) {
1924 if (info->RedBits > 0) {
1925 GLuint t = info->RedBits + info->GreenBits
1926 + info->BlueBits + info->AlphaBits;
1927 assert(t / 8 <= info->BytesPerBlock);
1928 (void) t;
1929 }
1930 }
1931
1932 assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
1933 info->DataType == GL_SIGNED_NORMALIZED ||
1934 info->DataType == GL_UNSIGNED_INT ||
1935 info->DataType == GL_INT ||
1936 info->DataType == GL_FLOAT ||
1937 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1938 info->DataType == GL_NONE);
1939
1940 if (info->BaseFormat == GL_RGB) {
1941 assert(info->RedBits > 0);
1942 assert(info->GreenBits > 0);
1943 assert(info->BlueBits > 0);
1944 assert(info->AlphaBits == 0);
1945 assert(info->LuminanceBits == 0);
1946 assert(info->IntensityBits == 0);
1947 }
1948 else if (info->BaseFormat == GL_RGBA) {
1949 assert(info->RedBits > 0);
1950 assert(info->GreenBits > 0);
1951 assert(info->BlueBits > 0);
1952 assert(info->AlphaBits > 0);
1953 assert(info->LuminanceBits == 0);
1954 assert(info->IntensityBits == 0);
1955 }
1956 else if (info->BaseFormat == GL_RG) {
1957 assert(info->RedBits > 0);
1958 assert(info->GreenBits > 0);
1959 assert(info->BlueBits == 0);
1960 assert(info->AlphaBits == 0);
1961 assert(info->LuminanceBits == 0);
1962 assert(info->IntensityBits == 0);
1963 }
1964 else if (info->BaseFormat == GL_RED) {
1965 assert(info->RedBits > 0);
1966 assert(info->GreenBits == 0);
1967 assert(info->BlueBits == 0);
1968 assert(info->AlphaBits == 0);
1969 assert(info->LuminanceBits == 0);
1970 assert(info->IntensityBits == 0);
1971 }
1972 else if (info->BaseFormat == GL_LUMINANCE) {
1973 assert(info->RedBits == 0);
1974 assert(info->GreenBits == 0);
1975 assert(info->BlueBits == 0);
1976 assert(info->AlphaBits == 0);
1977 assert(info->LuminanceBits > 0);
1978 assert(info->IntensityBits == 0);
1979 }
1980 else if (info->BaseFormat == GL_INTENSITY) {
1981 assert(info->RedBits == 0);
1982 assert(info->GreenBits == 0);
1983 assert(info->BlueBits == 0);
1984 assert(info->AlphaBits == 0);
1985 assert(info->LuminanceBits == 0);
1986 assert(info->IntensityBits > 0);
1987 }
1988 }
1989
1990 check_format_to_type_and_comps();
1991 }
1992
1993
1994
1995 /**
1996 * Return datatype and number of components per texel for the given gl_format.
1997 * Only used for mipmap generation code.
1998 */
1999 void
2000 _mesa_format_to_type_and_comps(gl_format format,
2001 GLenum *datatype, GLuint *comps)
2002 {
2003 switch (format) {
2004 case MESA_FORMAT_RGBA8888:
2005 case MESA_FORMAT_RGBA8888_REV:
2006 case MESA_FORMAT_ARGB8888:
2007 case MESA_FORMAT_ARGB8888_REV:
2008 case MESA_FORMAT_RGBX8888:
2009 case MESA_FORMAT_RGBX8888_REV:
2010 case MESA_FORMAT_XRGB8888:
2011 case MESA_FORMAT_XRGB8888_REV:
2012 *datatype = GL_UNSIGNED_BYTE;
2013 *comps = 4;
2014 return;
2015 case MESA_FORMAT_RGB888:
2016 case MESA_FORMAT_BGR888:
2017 *datatype = GL_UNSIGNED_BYTE;
2018 *comps = 3;
2019 return;
2020 case MESA_FORMAT_RGB565:
2021 case MESA_FORMAT_RGB565_REV:
2022 *datatype = GL_UNSIGNED_SHORT_5_6_5;
2023 *comps = 3;
2024 return;
2025
2026 case MESA_FORMAT_ARGB4444:
2027 case MESA_FORMAT_ARGB4444_REV:
2028 *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
2029 *comps = 4;
2030 return;
2031
2032 case MESA_FORMAT_ARGB1555:
2033 case MESA_FORMAT_ARGB1555_REV:
2034 *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2035 *comps = 4;
2036 return;
2037
2038 case MESA_FORMAT_ARGB2101010:
2039 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2040 *comps = 4;
2041 return;
2042
2043 case MESA_FORMAT_RGBA5551:
2044 *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
2045 *comps = 4;
2046 return;
2047
2048 case MESA_FORMAT_AL44:
2049 *datatype = MESA_UNSIGNED_BYTE_4_4;
2050 *comps = 2;
2051 return;
2052
2053 case MESA_FORMAT_AL88:
2054 case MESA_FORMAT_AL88_REV:
2055 case MESA_FORMAT_RG88:
2056 case MESA_FORMAT_RG88_REV:
2057 *datatype = GL_UNSIGNED_BYTE;
2058 *comps = 2;
2059 return;
2060
2061 case MESA_FORMAT_AL1616:
2062 case MESA_FORMAT_AL1616_REV:
2063 case MESA_FORMAT_RG1616:
2064 case MESA_FORMAT_RG1616_REV:
2065 *datatype = GL_UNSIGNED_SHORT;
2066 *comps = 2;
2067 return;
2068
2069 case MESA_FORMAT_R16:
2070 case MESA_FORMAT_A16:
2071 case MESA_FORMAT_L16:
2072 case MESA_FORMAT_I16:
2073 *datatype = GL_UNSIGNED_SHORT;
2074 *comps = 1;
2075 return;
2076
2077 case MESA_FORMAT_RGB332:
2078 *datatype = GL_UNSIGNED_BYTE_3_3_2;
2079 *comps = 3;
2080 return;
2081
2082 case MESA_FORMAT_A8:
2083 case MESA_FORMAT_L8:
2084 case MESA_FORMAT_I8:
2085 case MESA_FORMAT_R8:
2086 case MESA_FORMAT_S8:
2087 *datatype = GL_UNSIGNED_BYTE;
2088 *comps = 1;
2089 return;
2090
2091 case MESA_FORMAT_YCBCR:
2092 case MESA_FORMAT_YCBCR_REV:
2093 *datatype = GL_UNSIGNED_SHORT;
2094 *comps = 2;
2095 return;
2096
2097 case MESA_FORMAT_Z24_S8:
2098 *datatype = GL_UNSIGNED_INT_24_8_MESA;
2099 *comps = 2;
2100 return;
2101
2102 case MESA_FORMAT_S8_Z24:
2103 *datatype = GL_UNSIGNED_INT_8_24_REV_MESA;
2104 *comps = 2;
2105 return;
2106
2107 case MESA_FORMAT_Z16:
2108 *datatype = GL_UNSIGNED_SHORT;
2109 *comps = 1;
2110 return;
2111
2112 case MESA_FORMAT_X8_Z24:
2113 *datatype = GL_UNSIGNED_INT;
2114 *comps = 1;
2115 return;
2116
2117 case MESA_FORMAT_Z24_X8:
2118 *datatype = GL_UNSIGNED_INT;
2119 *comps = 1;
2120 return;
2121
2122 case MESA_FORMAT_Z32:
2123 *datatype = GL_UNSIGNED_INT;
2124 *comps = 1;
2125 return;
2126
2127 case MESA_FORMAT_Z32_FLOAT:
2128 *datatype = GL_FLOAT;
2129 *comps = 1;
2130 return;
2131
2132 case MESA_FORMAT_Z32_FLOAT_X24S8:
2133 *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
2134 *comps = 1;
2135 return;
2136
2137 case MESA_FORMAT_DUDV8:
2138 *datatype = GL_BYTE;
2139 *comps = 2;
2140 return;
2141
2142 case MESA_FORMAT_SIGNED_R8:
2143 case MESA_FORMAT_SIGNED_A8:
2144 case MESA_FORMAT_SIGNED_L8:
2145 case MESA_FORMAT_SIGNED_I8:
2146 *datatype = GL_BYTE;
2147 *comps = 1;
2148 return;
2149 case MESA_FORMAT_SIGNED_RG88_REV:
2150 case MESA_FORMAT_SIGNED_AL88:
2151 *datatype = GL_BYTE;
2152 *comps = 2;
2153 return;
2154 case MESA_FORMAT_SIGNED_RGBA8888:
2155 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2156 case MESA_FORMAT_SIGNED_RGBX8888:
2157 *datatype = GL_BYTE;
2158 *comps = 4;
2159 return;
2160
2161 case MESA_FORMAT_RGBA_16:
2162 *datatype = GL_UNSIGNED_SHORT;
2163 *comps = 4;
2164 return;
2165
2166 case MESA_FORMAT_SIGNED_R16:
2167 case MESA_FORMAT_SIGNED_A16:
2168 case MESA_FORMAT_SIGNED_L16:
2169 case MESA_FORMAT_SIGNED_I16:
2170 *datatype = GL_SHORT;
2171 *comps = 1;
2172 return;
2173 case MESA_FORMAT_SIGNED_GR1616:
2174 case MESA_FORMAT_SIGNED_AL1616:
2175 *datatype = GL_SHORT;
2176 *comps = 2;
2177 return;
2178 case MESA_FORMAT_SIGNED_RGB_16:
2179 *datatype = GL_SHORT;
2180 *comps = 3;
2181 return;
2182 case MESA_FORMAT_SIGNED_RGBA_16:
2183 *datatype = GL_SHORT;
2184 *comps = 4;
2185 return;
2186
2187 #if FEATURE_EXT_texture_sRGB
2188 case MESA_FORMAT_SRGB8:
2189 *datatype = GL_UNSIGNED_BYTE;
2190 *comps = 3;
2191 return;
2192 case MESA_FORMAT_SRGBA8:
2193 case MESA_FORMAT_SARGB8:
2194 *datatype = GL_UNSIGNED_BYTE;
2195 *comps = 4;
2196 return;
2197 case MESA_FORMAT_SL8:
2198 *datatype = GL_UNSIGNED_BYTE;
2199 *comps = 1;
2200 return;
2201 case MESA_FORMAT_SLA8:
2202 *datatype = GL_UNSIGNED_BYTE;
2203 *comps = 2;
2204 return;
2205 #endif
2206
2207 #if FEATURE_texture_fxt1
2208 case MESA_FORMAT_RGB_FXT1:
2209 case MESA_FORMAT_RGBA_FXT1:
2210 #endif
2211 #if FEATURE_texture_s3tc
2212 case MESA_FORMAT_RGB_DXT1:
2213 case MESA_FORMAT_RGBA_DXT1:
2214 case MESA_FORMAT_RGBA_DXT3:
2215 case MESA_FORMAT_RGBA_DXT5:
2216 #if FEATURE_EXT_texture_sRGB
2217 case MESA_FORMAT_SRGB_DXT1:
2218 case MESA_FORMAT_SRGBA_DXT1:
2219 case MESA_FORMAT_SRGBA_DXT3:
2220 case MESA_FORMAT_SRGBA_DXT5:
2221 #endif
2222 #endif
2223 case MESA_FORMAT_RED_RGTC1:
2224 case MESA_FORMAT_SIGNED_RED_RGTC1:
2225 case MESA_FORMAT_RG_RGTC2:
2226 case MESA_FORMAT_SIGNED_RG_RGTC2:
2227 case MESA_FORMAT_L_LATC1:
2228 case MESA_FORMAT_SIGNED_L_LATC1:
2229 case MESA_FORMAT_LA_LATC2:
2230 case MESA_FORMAT_SIGNED_LA_LATC2:
2231 /* XXX generate error instead? */
2232 *datatype = GL_UNSIGNED_BYTE;
2233 *comps = 0;
2234 return;
2235
2236 case MESA_FORMAT_RGBA_FLOAT32:
2237 *datatype = GL_FLOAT;
2238 *comps = 4;
2239 return;
2240 case MESA_FORMAT_RGBA_FLOAT16:
2241 *datatype = GL_HALF_FLOAT_ARB;
2242 *comps = 4;
2243 return;
2244 case MESA_FORMAT_RGB_FLOAT32:
2245 *datatype = GL_FLOAT;
2246 *comps = 3;
2247 return;
2248 case MESA_FORMAT_RGB_FLOAT16:
2249 *datatype = GL_HALF_FLOAT_ARB;
2250 *comps = 3;
2251 return;
2252 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2253 case MESA_FORMAT_RG_FLOAT32:
2254 *datatype = GL_FLOAT;
2255 *comps = 2;
2256 return;
2257 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2258 case MESA_FORMAT_RG_FLOAT16:
2259 *datatype = GL_HALF_FLOAT_ARB;
2260 *comps = 2;
2261 return;
2262 case MESA_FORMAT_ALPHA_FLOAT32:
2263 case MESA_FORMAT_LUMINANCE_FLOAT32:
2264 case MESA_FORMAT_INTENSITY_FLOAT32:
2265 case MESA_FORMAT_R_FLOAT32:
2266 *datatype = GL_FLOAT;
2267 *comps = 1;
2268 return;
2269 case MESA_FORMAT_ALPHA_FLOAT16:
2270 case MESA_FORMAT_LUMINANCE_FLOAT16:
2271 case MESA_FORMAT_INTENSITY_FLOAT16:
2272 case MESA_FORMAT_R_FLOAT16:
2273 *datatype = GL_HALF_FLOAT_ARB;
2274 *comps = 1;
2275 return;
2276
2277 case MESA_FORMAT_ALPHA_UINT8:
2278 case MESA_FORMAT_LUMINANCE_UINT8:
2279 case MESA_FORMAT_INTENSITY_UINT8:
2280 *datatype = GL_UNSIGNED_BYTE;
2281 *comps = 1;
2282 return;
2283 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2284 *datatype = GL_UNSIGNED_BYTE;
2285 *comps = 2;
2286 return;
2287
2288 case MESA_FORMAT_ALPHA_UINT16:
2289 case MESA_FORMAT_LUMINANCE_UINT16:
2290 case MESA_FORMAT_INTENSITY_UINT16:
2291 *datatype = GL_UNSIGNED_SHORT;
2292 *comps = 1;
2293 return;
2294 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2295 *datatype = GL_UNSIGNED_SHORT;
2296 *comps = 2;
2297 return;
2298 case MESA_FORMAT_ALPHA_UINT32:
2299 case MESA_FORMAT_LUMINANCE_UINT32:
2300 case MESA_FORMAT_INTENSITY_UINT32:
2301 *datatype = GL_UNSIGNED_INT;
2302 *comps = 1;
2303 return;
2304 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2305 *datatype = GL_UNSIGNED_INT;
2306 *comps = 2;
2307 return;
2308 case MESA_FORMAT_ALPHA_INT8:
2309 case MESA_FORMAT_LUMINANCE_INT8:
2310 case MESA_FORMAT_INTENSITY_INT8:
2311 *datatype = GL_BYTE;
2312 *comps = 1;
2313 return;
2314 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2315 *datatype = GL_BYTE;
2316 *comps = 2;
2317 return;
2318
2319 case MESA_FORMAT_ALPHA_INT16:
2320 case MESA_FORMAT_LUMINANCE_INT16:
2321 case MESA_FORMAT_INTENSITY_INT16:
2322 *datatype = GL_SHORT;
2323 *comps = 1;
2324 return;
2325 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2326 *datatype = GL_SHORT;
2327 *comps = 2;
2328 return;
2329
2330 case MESA_FORMAT_ALPHA_INT32:
2331 case MESA_FORMAT_LUMINANCE_INT32:
2332 case MESA_FORMAT_INTENSITY_INT32:
2333 *datatype = GL_INT;
2334 *comps = 1;
2335 return;
2336 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2337 *datatype = GL_INT;
2338 *comps = 2;
2339 return;
2340
2341 case MESA_FORMAT_R_INT8:
2342 *datatype = GL_BYTE;
2343 *comps = 1;
2344 return;
2345 case MESA_FORMAT_RG_INT8:
2346 *datatype = GL_BYTE;
2347 *comps = 2;
2348 return;
2349 case MESA_FORMAT_RGB_INT8:
2350 *datatype = GL_BYTE;
2351 *comps = 3;
2352 return;
2353 case MESA_FORMAT_RGBA_INT8:
2354 *datatype = GL_BYTE;
2355 *comps = 4;
2356 return;
2357 case MESA_FORMAT_R_INT16:
2358 *datatype = GL_SHORT;
2359 *comps = 1;
2360 return;
2361 case MESA_FORMAT_RG_INT16:
2362 *datatype = GL_SHORT;
2363 *comps = 2;
2364 return;
2365 case MESA_FORMAT_RGB_INT16:
2366 *datatype = GL_SHORT;
2367 *comps = 3;
2368 return;
2369 case MESA_FORMAT_RGBA_INT16:
2370 *datatype = GL_SHORT;
2371 *comps = 4;
2372 return;
2373 case MESA_FORMAT_R_INT32:
2374 *datatype = GL_INT;
2375 *comps = 1;
2376 return;
2377 case MESA_FORMAT_RG_INT32:
2378 *datatype = GL_INT;
2379 *comps = 2;
2380 return;
2381 case MESA_FORMAT_RGB_INT32:
2382 *datatype = GL_INT;
2383 *comps = 3;
2384 return;
2385 case MESA_FORMAT_RGBA_INT32:
2386 *datatype = GL_INT;
2387 *comps = 4;
2388 return;
2389
2390 /**
2391 * \name Non-normalized unsigned integer formats.
2392 */
2393 case MESA_FORMAT_R_UINT8:
2394 *datatype = GL_UNSIGNED_BYTE;
2395 *comps = 1;
2396 return;
2397 case MESA_FORMAT_RG_UINT8:
2398 *datatype = GL_UNSIGNED_BYTE;
2399 *comps = 2;
2400 return;
2401 case MESA_FORMAT_RGB_UINT8:
2402 *datatype = GL_UNSIGNED_BYTE;
2403 *comps = 3;
2404 return;
2405 case MESA_FORMAT_RGBA_UINT8:
2406 *datatype = GL_UNSIGNED_BYTE;
2407 *comps = 4;
2408 return;
2409 case MESA_FORMAT_R_UINT16:
2410 *datatype = GL_UNSIGNED_SHORT;
2411 *comps = 1;
2412 return;
2413 case MESA_FORMAT_RG_UINT16:
2414 *datatype = GL_UNSIGNED_SHORT;
2415 *comps = 2;
2416 return;
2417 case MESA_FORMAT_RGB_UINT16:
2418 *datatype = GL_UNSIGNED_SHORT;
2419 *comps = 3;
2420 return;
2421 case MESA_FORMAT_RGBA_UINT16:
2422 *datatype = GL_UNSIGNED_SHORT;
2423 *comps = 4;
2424 return;
2425 case MESA_FORMAT_R_UINT32:
2426 *datatype = GL_UNSIGNED_INT;
2427 *comps = 1;
2428 return;
2429 case MESA_FORMAT_RG_UINT32:
2430 *datatype = GL_UNSIGNED_INT;
2431 *comps = 2;
2432 return;
2433 case MESA_FORMAT_RGB_UINT32:
2434 *datatype = GL_UNSIGNED_INT;
2435 *comps = 3;
2436 return;
2437 case MESA_FORMAT_RGBA_UINT32:
2438 *datatype = GL_UNSIGNED_INT;
2439 *comps = 4;
2440 return;
2441
2442 case MESA_FORMAT_RGB9_E5_FLOAT:
2443 *datatype = GL_UNSIGNED_INT_5_9_9_9_REV;
2444 *comps = 3;
2445 return;
2446
2447 case MESA_FORMAT_R11_G11_B10_FLOAT:
2448 *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV;
2449 *comps = 3;
2450 return;
2451
2452 case MESA_FORMAT_COUNT:
2453 assert(0);
2454 return;
2455
2456 case MESA_FORMAT_NONE:
2457 /* For debug builds, warn if any formats are not handled */
2458 #ifdef DEBUG
2459 default:
2460 #endif
2461 _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2462 _mesa_get_format_name(format));
2463 *datatype = 0;
2464 *comps = 1;
2465 }
2466 }
2467
2468 /**
2469 * Returns a MESA_FORMAT describing pixels with the given format/type if
2470 * available, or MESA_FORMAT_NONE.
2471 *
2472 * If a format is returned, it should be suitable to memcpy
2473 * _mesa_get_format_bytes() at a time to move the pixel data.
2474 */
2475 GLboolean
2476 _mesa_format_matches_format_and_type(gl_format gl_format,
2477 GLenum format, GLenum type)
2478 {
2479 const GLboolean littleEndian = _mesa_little_endian();
2480
2481 /* Note: When reading a GL format/type combination, the format lists channel
2482 * assignments from most significant channel in the type to least
2483 * significant. A type with _REV indicates that the assignments are swapped,
2484 * so they are listed from least significant to most significant.
2485 *
2486 * For sanity, please keep this switch statement ordered the same as the enum
2487 * in formats.h.
2488 *
2489 * This matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2490 */
2491
2492 switch (gl_format) {
2493
2494 case MESA_FORMAT_NONE:
2495 case MESA_FORMAT_COUNT:
2496 return GL_FALSE;
2497
2498 case MESA_FORMAT_RGBA8888:
2499 return ((format == GL_RGBA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2500 (type == GL_UNSIGNED_BYTE && !littleEndian))) ||
2501 (format == GL_ABGR_EXT && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2502 (type == GL_UNSIGNED_BYTE && littleEndian))));
2503
2504 case MESA_FORMAT_RGBA8888_REV:
2505 return ((format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV));
2506
2507 case MESA_FORMAT_ARGB8888:
2508 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2509 (type == GL_UNSIGNED_BYTE && littleEndian))));
2510
2511 case MESA_FORMAT_ARGB8888_REV:
2512 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2513 (type == GL_UNSIGNED_BYTE && !littleEndian))));
2514
2515 case MESA_FORMAT_RGBX8888:
2516 case MESA_FORMAT_RGBX8888_REV:
2517 return GL_FALSE;
2518
2519 case MESA_FORMAT_XRGB8888:
2520 case MESA_FORMAT_XRGB8888_REV:
2521 return GL_FALSE;
2522
2523 case MESA_FORMAT_RGB888:
2524 return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2525
2526 case MESA_FORMAT_BGR888:
2527 return GL_FALSE;
2528
2529 case MESA_FORMAT_RGB565:
2530 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
2531 case MESA_FORMAT_RGB565_REV:
2532 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2533 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2534 * according to formats.h, so they can't be matched.
2535 */
2536 return GL_FALSE;
2537
2538 case MESA_FORMAT_ARGB4444:
2539 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV;
2540 case MESA_FORMAT_ARGB4444_REV:
2541 return GL_FALSE;
2542
2543 case MESA_FORMAT_RGBA5551:
2544 return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1;
2545
2546 case MESA_FORMAT_ARGB1555:
2547 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV;
2548 case MESA_FORMAT_ARGB1555_REV:
2549 return GL_FALSE;
2550
2551 case MESA_FORMAT_AL44:
2552 return GL_FALSE;
2553 case MESA_FORMAT_AL88:
2554 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2555 case MESA_FORMAT_AL88_REV:
2556 return GL_FALSE;
2557
2558 case MESA_FORMAT_AL1616:
2559 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2560 case MESA_FORMAT_AL1616_REV:
2561 return GL_FALSE;
2562
2563 case MESA_FORMAT_RGB332:
2564 return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2565
2566 case MESA_FORMAT_A8:
2567 return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2568 case MESA_FORMAT_A16:
2569 return format == GL_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2570 case MESA_FORMAT_L8:
2571 return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2572 case MESA_FORMAT_L16:
2573 return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT && littleEndian;
2574 case MESA_FORMAT_I8:
2575 return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2576 case MESA_FORMAT_I16:
2577 return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT && littleEndian;
2578
2579 case MESA_FORMAT_YCBCR:
2580 case MESA_FORMAT_YCBCR_REV:
2581 return GL_FALSE;
2582
2583 case MESA_FORMAT_R8:
2584 return format == GL_RED && type == GL_UNSIGNED_BYTE;
2585 case MESA_FORMAT_RG88:
2586 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2587 case MESA_FORMAT_RG88_REV:
2588 return GL_FALSE;
2589
2590 case MESA_FORMAT_R16:
2591 return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian;
2592 case MESA_FORMAT_RG1616:
2593 return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian;
2594 case MESA_FORMAT_RG1616_REV:
2595 return GL_FALSE;
2596
2597 case MESA_FORMAT_ARGB2101010:
2598 return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV;
2599
2600 case MESA_FORMAT_Z24_S8:
2601 return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8;
2602 case MESA_FORMAT_Z24_X8:
2603 case MESA_FORMAT_S8_Z24:
2604 return GL_FALSE;
2605
2606 case MESA_FORMAT_Z16:
2607 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT;
2608
2609 case MESA_FORMAT_X8_Z24:
2610 return GL_FALSE;
2611
2612 case MESA_FORMAT_Z32:
2613 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT;
2614
2615 case MESA_FORMAT_S8:
2616 return GL_FALSE;
2617
2618 case MESA_FORMAT_SRGB8:
2619 case MESA_FORMAT_SRGBA8:
2620 case MESA_FORMAT_SARGB8:
2621 case MESA_FORMAT_SL8:
2622 case MESA_FORMAT_SLA8:
2623 case MESA_FORMAT_SRGB_DXT1:
2624 case MESA_FORMAT_SRGBA_DXT1:
2625 case MESA_FORMAT_SRGBA_DXT3:
2626 case MESA_FORMAT_SRGBA_DXT5:
2627 return GL_FALSE;
2628
2629 case MESA_FORMAT_RGB_FXT1:
2630 case MESA_FORMAT_RGBA_FXT1:
2631 case MESA_FORMAT_RGB_DXT1:
2632 case MESA_FORMAT_RGBA_DXT1:
2633 case MESA_FORMAT_RGBA_DXT3:
2634 case MESA_FORMAT_RGBA_DXT5:
2635 return GL_FALSE;
2636
2637 case MESA_FORMAT_RGBA_FLOAT32:
2638 return format == GL_RGBA && type == GL_FLOAT;
2639 case MESA_FORMAT_RGBA_FLOAT16:
2640 return format == GL_RGBA && type == GL_HALF_FLOAT;
2641
2642 case MESA_FORMAT_RGB_FLOAT32:
2643 return format == GL_RGB && type == GL_FLOAT;
2644 case MESA_FORMAT_RGB_FLOAT16:
2645 return format == GL_RGB && type == GL_HALF_FLOAT;
2646
2647 case MESA_FORMAT_ALPHA_FLOAT32:
2648 return format == GL_ALPHA && type == GL_FLOAT;
2649 case MESA_FORMAT_ALPHA_FLOAT16:
2650 return format == GL_ALPHA && type == GL_HALF_FLOAT;
2651
2652 case MESA_FORMAT_LUMINANCE_FLOAT32:
2653 return format == GL_LUMINANCE && type == GL_FLOAT;
2654 case MESA_FORMAT_LUMINANCE_FLOAT16:
2655 return format == GL_LUMINANCE && type == GL_HALF_FLOAT;
2656
2657 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2658 return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT;
2659 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2660 return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT;
2661
2662 case MESA_FORMAT_INTENSITY_FLOAT32:
2663 return format == GL_INTENSITY && type == GL_FLOAT;
2664 case MESA_FORMAT_INTENSITY_FLOAT16:
2665 return format == GL_INTENSITY && type == GL_HALF_FLOAT;
2666
2667 case MESA_FORMAT_R_FLOAT32:
2668 return format == GL_RED && type == GL_FLOAT;
2669 case MESA_FORMAT_R_FLOAT16:
2670 return format == GL_RED && type == GL_HALF_FLOAT;
2671
2672 case MESA_FORMAT_RG_FLOAT32:
2673 return format == GL_RG && type == GL_FLOAT;
2674 case MESA_FORMAT_RG_FLOAT16:
2675 return format == GL_RG && type == GL_HALF_FLOAT;
2676
2677 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2678 case MESA_FORMAT_ALPHA_UINT8:
2679 case MESA_FORMAT_ALPHA_UINT16:
2680 case MESA_FORMAT_ALPHA_UINT32:
2681 case MESA_FORMAT_ALPHA_INT8:
2682 case MESA_FORMAT_ALPHA_INT16:
2683 case MESA_FORMAT_ALPHA_INT32:
2684 return GL_FALSE;
2685
2686 case MESA_FORMAT_INTENSITY_UINT8:
2687 case MESA_FORMAT_INTENSITY_UINT16:
2688 case MESA_FORMAT_INTENSITY_UINT32:
2689 case MESA_FORMAT_INTENSITY_INT8:
2690 case MESA_FORMAT_INTENSITY_INT16:
2691 case MESA_FORMAT_INTENSITY_INT32:
2692 return GL_FALSE;
2693
2694 case MESA_FORMAT_LUMINANCE_UINT8:
2695 case MESA_FORMAT_LUMINANCE_UINT16:
2696 case MESA_FORMAT_LUMINANCE_UINT32:
2697 case MESA_FORMAT_LUMINANCE_INT8:
2698 case MESA_FORMAT_LUMINANCE_INT16:
2699 case MESA_FORMAT_LUMINANCE_INT32:
2700 return GL_FALSE;
2701
2702 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2703 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2704 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2705 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2706 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2707 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2708 return GL_FALSE;
2709
2710 case MESA_FORMAT_R_INT8:
2711 case MESA_FORMAT_RG_INT8:
2712 case MESA_FORMAT_RGB_INT8:
2713 case MESA_FORMAT_RGBA_INT8:
2714 case MESA_FORMAT_R_INT16:
2715 case MESA_FORMAT_RG_INT16:
2716 case MESA_FORMAT_RGB_INT16:
2717 case MESA_FORMAT_RGBA_INT16:
2718 case MESA_FORMAT_R_INT32:
2719 case MESA_FORMAT_RG_INT32:
2720 case MESA_FORMAT_RGB_INT32:
2721 case MESA_FORMAT_RGBA_INT32:
2722 return GL_FALSE;
2723
2724 case MESA_FORMAT_R_UINT8:
2725 case MESA_FORMAT_RG_UINT8:
2726 case MESA_FORMAT_RGB_UINT8:
2727 case MESA_FORMAT_RGBA_UINT8:
2728 case MESA_FORMAT_R_UINT16:
2729 case MESA_FORMAT_RG_UINT16:
2730 case MESA_FORMAT_RGB_UINT16:
2731 case MESA_FORMAT_RGBA_UINT16:
2732 case MESA_FORMAT_R_UINT32:
2733 case MESA_FORMAT_RG_UINT32:
2734 case MESA_FORMAT_RGB_UINT32:
2735 case MESA_FORMAT_RGBA_UINT32:
2736 return GL_FALSE;
2737
2738 case MESA_FORMAT_DUDV8:
2739 case MESA_FORMAT_SIGNED_R8:
2740 case MESA_FORMAT_SIGNED_RG88_REV:
2741 case MESA_FORMAT_SIGNED_RGBX8888:
2742 case MESA_FORMAT_SIGNED_RGBA8888:
2743 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2744 case MESA_FORMAT_SIGNED_R16:
2745 case MESA_FORMAT_SIGNED_GR1616:
2746 case MESA_FORMAT_SIGNED_RGB_16:
2747 case MESA_FORMAT_SIGNED_RGBA_16:
2748 case MESA_FORMAT_RGBA_16:
2749 /* FINISHME: SNORM */
2750 return GL_FALSE;
2751
2752 case MESA_FORMAT_RED_RGTC1:
2753 case MESA_FORMAT_SIGNED_RED_RGTC1:
2754 case MESA_FORMAT_RG_RGTC2:
2755 case MESA_FORMAT_SIGNED_RG_RGTC2:
2756 return GL_FALSE;
2757
2758 case MESA_FORMAT_L_LATC1:
2759 case MESA_FORMAT_SIGNED_L_LATC1:
2760 case MESA_FORMAT_LA_LATC2:
2761 case MESA_FORMAT_SIGNED_LA_LATC2:
2762 return GL_FALSE;
2763
2764 case MESA_FORMAT_SIGNED_A8:
2765 case MESA_FORMAT_SIGNED_L8:
2766 case MESA_FORMAT_SIGNED_AL88:
2767 case MESA_FORMAT_SIGNED_I8:
2768 case MESA_FORMAT_SIGNED_A16:
2769 case MESA_FORMAT_SIGNED_L16:
2770 case MESA_FORMAT_SIGNED_AL1616:
2771 case MESA_FORMAT_SIGNED_I16:
2772 /* FINISHME: SNORM */
2773 return GL_FALSE;
2774
2775 case MESA_FORMAT_RGB9_E5_FLOAT:
2776 return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV;
2777 case MESA_FORMAT_R11_G11_B10_FLOAT:
2778 return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV;
2779
2780 case MESA_FORMAT_Z32_FLOAT:
2781 return format == GL_DEPTH_COMPONENT && type == GL_FLOAT;
2782
2783 case MESA_FORMAT_Z32_FLOAT_X24S8:
2784 return GL_FALSE;
2785 }
2786
2787 return GL_FALSE;
2788 }