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mesa: Add a function for comparing gl_format to format/type.
[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_XRGB8888, /* Name */
127 "MESA_FORMAT_XRGB8888", /* 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_XRGB8888_REV, /* Name */
136 "MESA_FORMAT_XRGB8888_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_RGB888, /* Name */
145 "MESA_FORMAT_RGB888", /* 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, 3 /* BlockWidth/Height,Bytes */
151 },
152 {
153 MESA_FORMAT_BGR888, /* Name */
154 "MESA_FORMAT_BGR888", /* 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, 3 /* BlockWidth/Height,Bytes */
160 },
161 {
162 MESA_FORMAT_RGB565, /* Name */
163 "MESA_FORMAT_RGB565", /* StrName */
164 GL_RGB, /* BaseFormat */
165 GL_UNSIGNED_NORMALIZED, /* DataType */
166 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
167 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
168 1, 1, 2 /* BlockWidth/Height,Bytes */
169 },
170 {
171 MESA_FORMAT_RGB565_REV, /* Name */
172 "MESA_FORMAT_RGB565_REV", /* StrName */
173 GL_RGB, /* BaseFormat */
174 GL_UNSIGNED_NORMALIZED, /* DataType */
175 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
176 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
177 1, 1, 2 /* BlockWidth/Height,Bytes */
178 },
179 {
180 MESA_FORMAT_ARGB4444, /* Name */
181 "MESA_FORMAT_ARGB4444", /* StrName */
182 GL_RGBA, /* BaseFormat */
183 GL_UNSIGNED_NORMALIZED, /* DataType */
184 4, 4, 4, 4, /* 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_ARGB4444_REV, /* Name */
190 "MESA_FORMAT_ARGB4444_REV", /* StrName */
191 GL_RGBA, /* BaseFormat */
192 GL_UNSIGNED_NORMALIZED, /* DataType */
193 4, 4, 4, 4, /* 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_RGBA5551, /* Name */
199 "MESA_FORMAT_RGBA5551", /* StrName */
200 GL_RGBA, /* BaseFormat */
201 GL_UNSIGNED_NORMALIZED, /* DataType */
202 5, 5, 5, 1, /* 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_ARGB1555, /* Name */
208 "MESA_FORMAT_ARGB1555", /* StrName */
209 GL_RGBA, /* BaseFormat */
210 GL_UNSIGNED_NORMALIZED, /* DataType */
211 5, 5, 5, 1, /* 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_ARGB1555_REV, /* Name */
217 "MESA_FORMAT_ARGB1555_REV", /* 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_AL44, /* Name */
226 "MESA_FORMAT_AL44", /* StrName */
227 GL_LUMINANCE_ALPHA, /* BaseFormat */
228 GL_UNSIGNED_NORMALIZED, /* DataType */
229 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
230 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
231 1, 1, 1 /* BlockWidth/Height,Bytes */
232 },
233 {
234 MESA_FORMAT_AL88, /* Name */
235 "MESA_FORMAT_AL88", /* StrName */
236 GL_LUMINANCE_ALPHA, /* BaseFormat */
237 GL_UNSIGNED_NORMALIZED, /* DataType */
238 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
239 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
240 1, 1, 2 /* BlockWidth/Height,Bytes */
241 },
242 {
243 MESA_FORMAT_AL88_REV, /* Name */
244 "MESA_FORMAT_AL88_REV", /* StrName */
245 GL_LUMINANCE_ALPHA, /* BaseFormat */
246 GL_UNSIGNED_NORMALIZED, /* DataType */
247 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
248 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
249 1, 1, 2 /* BlockWidth/Height,Bytes */
250 },
251 {
252 MESA_FORMAT_AL1616, /* Name */
253 "MESA_FORMAT_AL1616", /* StrName */
254 GL_LUMINANCE_ALPHA, /* BaseFormat */
255 GL_UNSIGNED_NORMALIZED, /* DataType */
256 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
257 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
258 1, 1, 4 /* BlockWidth/Height,Bytes */
259 },
260 {
261 MESA_FORMAT_AL1616_REV, /* Name */
262 "MESA_FORMAT_AL1616_REV", /* StrName */
263 GL_LUMINANCE_ALPHA, /* BaseFormat */
264 GL_UNSIGNED_NORMALIZED, /* DataType */
265 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
266 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
267 1, 1, 4 /* BlockWidth/Height,Bytes */
268 },
269 {
270 MESA_FORMAT_RGB332, /* Name */
271 "MESA_FORMAT_RGB332", /* StrName */
272 GL_RGB, /* BaseFormat */
273 GL_UNSIGNED_NORMALIZED, /* DataType */
274 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
275 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
276 1, 1, 1 /* BlockWidth/Height,Bytes */
277 },
278 {
279 MESA_FORMAT_A8, /* Name */
280 "MESA_FORMAT_A8", /* StrName */
281 GL_ALPHA, /* BaseFormat */
282 GL_UNSIGNED_NORMALIZED, /* DataType */
283 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
284 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
285 1, 1, 1 /* BlockWidth/Height,Bytes */
286 },
287 {
288 MESA_FORMAT_A16, /* Name */
289 "MESA_FORMAT_A16", /* StrName */
290 GL_ALPHA, /* BaseFormat */
291 GL_UNSIGNED_NORMALIZED, /* DataType */
292 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
293 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
294 1, 1, 2 /* BlockWidth/Height,Bytes */
295 },
296 {
297 MESA_FORMAT_L8, /* Name */
298 "MESA_FORMAT_L8", /* StrName */
299 GL_LUMINANCE, /* BaseFormat */
300 GL_UNSIGNED_NORMALIZED, /* DataType */
301 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
302 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
303 1, 1, 1 /* BlockWidth/Height,Bytes */
304 },
305 {
306 MESA_FORMAT_L16, /* Name */
307 "MESA_FORMAT_L16", /* StrName */
308 GL_LUMINANCE, /* BaseFormat */
309 GL_UNSIGNED_NORMALIZED, /* DataType */
310 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
311 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
312 1, 1, 2 /* BlockWidth/Height,Bytes */
313 },
314 {
315 MESA_FORMAT_I8, /* Name */
316 "MESA_FORMAT_I8", /* StrName */
317 GL_INTENSITY, /* BaseFormat */
318 GL_UNSIGNED_NORMALIZED, /* DataType */
319 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
320 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
321 1, 1, 1 /* BlockWidth/Height,Bytes */
322 },
323 {
324 MESA_FORMAT_I16, /* Name */
325 "MESA_FORMAT_I16", /* StrName */
326 GL_INTENSITY, /* BaseFormat */
327 GL_UNSIGNED_NORMALIZED, /* DataType */
328 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
329 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
330 1, 1, 2 /* BlockWidth/Height,Bytes */
331 },
332 {
333 MESA_FORMAT_YCBCR, /* Name */
334 "MESA_FORMAT_YCBCR", /* StrName */
335 GL_YCBCR_MESA, /* BaseFormat */
336 GL_UNSIGNED_NORMALIZED, /* DataType */
337 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
338 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
339 1, 1, 2 /* BlockWidth/Height,Bytes */
340 },
341 {
342 MESA_FORMAT_YCBCR_REV, /* Name */
343 "MESA_FORMAT_YCBCR_REV", /* StrName */
344 GL_YCBCR_MESA, /* BaseFormat */
345 GL_UNSIGNED_NORMALIZED, /* DataType */
346 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
347 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
348 1, 1, 2 /* BlockWidth/Height,Bytes */
349 },
350 {
351 MESA_FORMAT_R8,
352 "MESA_FORMAT_R8",
353 GL_RED,
354 GL_UNSIGNED_NORMALIZED,
355 8, 0, 0, 0,
356 0, 0, 0, 0, 0,
357 1, 1, 1
358 },
359 {
360 MESA_FORMAT_RG88,
361 "MESA_FORMAT_RG88",
362 GL_RG,
363 GL_UNSIGNED_NORMALIZED,
364 8, 8, 0, 0,
365 0, 0, 0, 0, 0,
366 1, 1, 2
367 },
368 {
369 MESA_FORMAT_RG88_REV,
370 "MESA_FORMAT_RG88_REV",
371 GL_RG,
372 GL_UNSIGNED_NORMALIZED,
373 8, 8, 0, 0,
374 0, 0, 0, 0, 0,
375 1, 1, 2
376 },
377 {
378 MESA_FORMAT_R16,
379 "MESA_FORMAT_R16",
380 GL_RED,
381 GL_UNSIGNED_NORMALIZED,
382 16, 0, 0, 0,
383 0, 0, 0, 0, 0,
384 1, 1, 2
385 },
386 {
387 MESA_FORMAT_RG1616,
388 "MESA_FORMAT_RG1616",
389 GL_RG,
390 GL_UNSIGNED_NORMALIZED,
391 16, 16, 0, 0,
392 0, 0, 0, 0, 0,
393 1, 1, 4
394 },
395 {
396 MESA_FORMAT_RG1616_REV,
397 "MESA_FORMAT_RG1616_REV",
398 GL_RG,
399 GL_UNSIGNED_NORMALIZED,
400 16, 16, 0, 0,
401 0, 0, 0, 0, 0,
402 1, 1, 4
403 },
404 {
405 MESA_FORMAT_ARGB2101010,
406 "MESA_FORMAT_ARGB2101010",
407 GL_RGBA,
408 GL_UNSIGNED_NORMALIZED,
409 10, 10, 10, 2,
410 0, 0, 0, 0, 0,
411 1, 1, 4
412 },
413 {
414 MESA_FORMAT_Z24_S8, /* Name */
415 "MESA_FORMAT_Z24_S8", /* StrName */
416 GL_DEPTH_STENCIL, /* BaseFormat */
417 GL_UNSIGNED_INT, /* DataType */
418 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
419 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
420 1, 1, 4 /* BlockWidth/Height,Bytes */
421 },
422 {
423 MESA_FORMAT_S8_Z24, /* Name */
424 "MESA_FORMAT_S8_Z24", /* StrName */
425 GL_DEPTH_STENCIL, /* BaseFormat */
426 GL_UNSIGNED_INT, /* DataType */
427 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
428 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
429 1, 1, 4 /* BlockWidth/Height,Bytes */
430 },
431 {
432 MESA_FORMAT_Z16, /* Name */
433 "MESA_FORMAT_Z16", /* StrName */
434 GL_DEPTH_COMPONENT, /* BaseFormat */
435 GL_UNSIGNED_INT, /* DataType */
436 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
437 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
438 1, 1, 2 /* BlockWidth/Height,Bytes */
439 },
440 {
441 MESA_FORMAT_X8_Z24, /* Name */
442 "MESA_FORMAT_X8_Z24", /* StrName */
443 GL_DEPTH_COMPONENT, /* BaseFormat */
444 GL_UNSIGNED_INT, /* DataType */
445 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
446 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
447 1, 1, 4 /* BlockWidth/Height,Bytes */
448 },
449 {
450 MESA_FORMAT_Z24_X8, /* Name */
451 "MESA_FORMAT_Z24_X8", /* StrName */
452 GL_DEPTH_COMPONENT, /* BaseFormat */
453 GL_UNSIGNED_INT, /* DataType */
454 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
455 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
456 1, 1, 4 /* BlockWidth/Height,Bytes */
457 },
458 {
459 MESA_FORMAT_Z32, /* Name */
460 "MESA_FORMAT_Z32", /* StrName */
461 GL_DEPTH_COMPONENT, /* BaseFormat */
462 GL_UNSIGNED_INT, /* DataType */
463 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
464 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
465 1, 1, 4 /* BlockWidth/Height,Bytes */
466 },
467 {
468 MESA_FORMAT_S8, /* Name */
469 "MESA_FORMAT_S8", /* StrName */
470 GL_STENCIL_INDEX, /* BaseFormat */
471 GL_UNSIGNED_INT, /* DataType */
472 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
473 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
474 1, 1, 1 /* BlockWidth/Height,Bytes */
475 },
476 {
477 MESA_FORMAT_SRGB8,
478 "MESA_FORMAT_SRGB8",
479 GL_RGB,
480 GL_UNSIGNED_NORMALIZED,
481 8, 8, 8, 0,
482 0, 0, 0, 0, 0,
483 1, 1, 3
484 },
485 {
486 MESA_FORMAT_SRGBA8,
487 "MESA_FORMAT_SRGBA8",
488 GL_RGBA,
489 GL_UNSIGNED_NORMALIZED,
490 8, 8, 8, 8,
491 0, 0, 0, 0, 0,
492 1, 1, 4
493 },
494 {
495 MESA_FORMAT_SARGB8,
496 "MESA_FORMAT_SARGB8",
497 GL_RGBA,
498 GL_UNSIGNED_NORMALIZED,
499 8, 8, 8, 8,
500 0, 0, 0, 0, 0,
501 1, 1, 4
502 },
503 {
504 MESA_FORMAT_SL8,
505 "MESA_FORMAT_SL8",
506 GL_LUMINANCE,
507 GL_UNSIGNED_NORMALIZED,
508 0, 0, 0, 0,
509 8, 0, 0, 0, 0,
510 1, 1, 1
511 },
512 {
513 MESA_FORMAT_SLA8,
514 "MESA_FORMAT_SLA8",
515 GL_LUMINANCE_ALPHA,
516 GL_UNSIGNED_NORMALIZED,
517 0, 0, 0, 8,
518 8, 0, 0, 0, 0,
519 1, 1, 2
520 },
521 {
522 MESA_FORMAT_SRGB_DXT1, /* Name */
523 "MESA_FORMAT_SRGB_DXT1", /* StrName */
524 GL_RGB, /* BaseFormat */
525 GL_UNSIGNED_NORMALIZED, /* DataType */
526 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
527 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
528 4, 4, 8 /* 8 bytes per 4x4 block */
529 },
530 {
531 MESA_FORMAT_SRGBA_DXT1,
532 "MESA_FORMAT_SRGBA_DXT1",
533 GL_RGBA,
534 GL_UNSIGNED_NORMALIZED,
535 4, 4, 4, 4,
536 0, 0, 0, 0, 0,
537 4, 4, 8 /* 8 bytes per 4x4 block */
538 },
539 {
540 MESA_FORMAT_SRGBA_DXT3,
541 "MESA_FORMAT_SRGBA_DXT3",
542 GL_RGBA,
543 GL_UNSIGNED_NORMALIZED,
544 4, 4, 4, 4,
545 0, 0, 0, 0, 0,
546 4, 4, 16 /* 16 bytes per 4x4 block */
547 },
548 {
549 MESA_FORMAT_SRGBA_DXT5,
550 "MESA_FORMAT_SRGBA_DXT5",
551 GL_RGBA,
552 GL_UNSIGNED_NORMALIZED,
553 4, 4, 4, 4,
554 0, 0, 0, 0, 0,
555 4, 4, 16 /* 16 bytes per 4x4 block */
556 },
557
558 {
559 MESA_FORMAT_RGB_FXT1,
560 "MESA_FORMAT_RGB_FXT1",
561 GL_RGB,
562 GL_UNSIGNED_NORMALIZED,
563 4, 4, 4, 0, /* approx Red/Green/BlueBits */
564 0, 0, 0, 0, 0,
565 8, 4, 16 /* 16 bytes per 8x4 block */
566 },
567 {
568 MESA_FORMAT_RGBA_FXT1,
569 "MESA_FORMAT_RGBA_FXT1",
570 GL_RGBA,
571 GL_UNSIGNED_NORMALIZED,
572 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
573 0, 0, 0, 0, 0,
574 8, 4, 16 /* 16 bytes per 8x4 block */
575 },
576
577 {
578 MESA_FORMAT_RGB_DXT1, /* Name */
579 "MESA_FORMAT_RGB_DXT1", /* StrName */
580 GL_RGB, /* BaseFormat */
581 GL_UNSIGNED_NORMALIZED, /* DataType */
582 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
583 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
584 4, 4, 8 /* 8 bytes per 4x4 block */
585 },
586 {
587 MESA_FORMAT_RGBA_DXT1,
588 "MESA_FORMAT_RGBA_DXT1",
589 GL_RGBA,
590 GL_UNSIGNED_NORMALIZED,
591 4, 4, 4, 4,
592 0, 0, 0, 0, 0,
593 4, 4, 8 /* 8 bytes per 4x4 block */
594 },
595 {
596 MESA_FORMAT_RGBA_DXT3,
597 "MESA_FORMAT_RGBA_DXT3",
598 GL_RGBA,
599 GL_UNSIGNED_NORMALIZED,
600 4, 4, 4, 4,
601 0, 0, 0, 0, 0,
602 4, 4, 16 /* 16 bytes per 4x4 block */
603 },
604 {
605 MESA_FORMAT_RGBA_DXT5,
606 "MESA_FORMAT_RGBA_DXT5",
607 GL_RGBA,
608 GL_UNSIGNED_NORMALIZED,
609 4, 4, 4, 4,
610 0, 0, 0, 0, 0,
611 4, 4, 16 /* 16 bytes per 4x4 block */
612 },
613 {
614 MESA_FORMAT_RGBA_FLOAT32,
615 "MESA_FORMAT_RGBA_FLOAT32",
616 GL_RGBA,
617 GL_FLOAT,
618 32, 32, 32, 32,
619 0, 0, 0, 0, 0,
620 1, 1, 16
621 },
622 {
623 MESA_FORMAT_RGBA_FLOAT16,
624 "MESA_FORMAT_RGBA_FLOAT16",
625 GL_RGBA,
626 GL_FLOAT,
627 16, 16, 16, 16,
628 0, 0, 0, 0, 0,
629 1, 1, 8
630 },
631 {
632 MESA_FORMAT_RGB_FLOAT32,
633 "MESA_FORMAT_RGB_FLOAT32",
634 GL_RGB,
635 GL_FLOAT,
636 32, 32, 32, 0,
637 0, 0, 0, 0, 0,
638 1, 1, 12
639 },
640 {
641 MESA_FORMAT_RGB_FLOAT16,
642 "MESA_FORMAT_RGB_FLOAT16",
643 GL_RGB,
644 GL_FLOAT,
645 16, 16, 16, 0,
646 0, 0, 0, 0, 0,
647 1, 1, 6
648 },
649 {
650 MESA_FORMAT_ALPHA_FLOAT32,
651 "MESA_FORMAT_ALPHA_FLOAT32",
652 GL_ALPHA,
653 GL_FLOAT,
654 0, 0, 0, 32,
655 0, 0, 0, 0, 0,
656 1, 1, 4
657 },
658 {
659 MESA_FORMAT_ALPHA_FLOAT16,
660 "MESA_FORMAT_ALPHA_FLOAT16",
661 GL_ALPHA,
662 GL_FLOAT,
663 0, 0, 0, 16,
664 0, 0, 0, 0, 0,
665 1, 1, 2
666 },
667 {
668 MESA_FORMAT_LUMINANCE_FLOAT32,
669 "MESA_FORMAT_LUMINANCE_FLOAT32",
670 GL_LUMINANCE,
671 GL_FLOAT,
672 0, 0, 0, 0,
673 32, 0, 0, 0, 0,
674 1, 1, 4
675 },
676 {
677 MESA_FORMAT_LUMINANCE_FLOAT16,
678 "MESA_FORMAT_LUMINANCE_FLOAT16",
679 GL_LUMINANCE,
680 GL_FLOAT,
681 0, 0, 0, 0,
682 16, 0, 0, 0, 0,
683 1, 1, 2
684 },
685 {
686 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32,
687 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
688 GL_LUMINANCE_ALPHA,
689 GL_FLOAT,
690 0, 0, 0, 32,
691 32, 0, 0, 0, 0,
692 1, 1, 8
693 },
694 {
695 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16,
696 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
697 GL_LUMINANCE_ALPHA,
698 GL_FLOAT,
699 0, 0, 0, 16,
700 16, 0, 0, 0, 0,
701 1, 1, 4
702 },
703 {
704 MESA_FORMAT_INTENSITY_FLOAT32,
705 "MESA_FORMAT_INTENSITY_FLOAT32",
706 GL_INTENSITY,
707 GL_FLOAT,
708 0, 0, 0, 0,
709 0, 32, 0, 0, 0,
710 1, 1, 4
711 },
712 {
713 MESA_FORMAT_INTENSITY_FLOAT16,
714 "MESA_FORMAT_INTENSITY_FLOAT16",
715 GL_INTENSITY,
716 GL_FLOAT,
717 0, 0, 0, 0,
718 0, 16, 0, 0, 0,
719 1, 1, 2
720 },
721 {
722 MESA_FORMAT_R_FLOAT32,
723 "MESA_FORMAT_R_FLOAT32",
724 GL_RED,
725 GL_FLOAT,
726 32, 0, 0, 0,
727 0, 0, 0, 0, 0,
728 1, 1, 4
729 },
730 {
731 MESA_FORMAT_R_FLOAT16,
732 "MESA_FORMAT_R_FLOAT16",
733 GL_RED,
734 GL_FLOAT,
735 16, 0, 0, 0,
736 0, 0, 0, 0, 0,
737 1, 1, 2
738 },
739 {
740 MESA_FORMAT_RG_FLOAT32,
741 "MESA_FORMAT_RG_FLOAT32",
742 GL_RG,
743 GL_FLOAT,
744 32, 32, 0, 0,
745 0, 0, 0, 0, 0,
746 1, 1, 8
747 },
748 {
749 MESA_FORMAT_RG_FLOAT16,
750 "MESA_FORMAT_RG_FLOAT16",
751 GL_RG,
752 GL_FLOAT,
753 16, 16, 0, 0,
754 0, 0, 0, 0, 0,
755 1, 1, 4
756 },
757
758 /* unnormalized signed int formats */
759 /* unnormalized unsigned int formats */
760 {
761 MESA_FORMAT_ALPHA_UINT8,
762 "MESA_FORMAT_ALPHA_UINT8",
763 GL_ALPHA,
764 GL_UNSIGNED_INT,
765 0, 0, 0, 8,
766 0, 0, 0, 0, 0,
767 1, 1, 1
768 },
769 {
770 MESA_FORMAT_ALPHA_UINT16,
771 "MESA_FORMAT_ALPHA_UINT16",
772 GL_ALPHA,
773 GL_UNSIGNED_INT,
774 0, 0, 0, 16,
775 0, 0, 0, 0, 0,
776 1, 1, 2
777 },
778 {
779 MESA_FORMAT_ALPHA_UINT32,
780 "MESA_FORMAT_ALPHA_UINT32",
781 GL_ALPHA,
782 GL_UNSIGNED_INT,
783 0, 0, 0, 32,
784 0, 0, 0, 0, 0,
785 1, 1, 4
786 },
787 {
788 MESA_FORMAT_ALPHA_INT8,
789 "MESA_FORMAT_ALPHA_INT8",
790 GL_ALPHA,
791 GL_INT,
792 0, 0, 0, 8,
793 0, 0, 0, 0, 0,
794 1, 1, 1
795 },
796 {
797 MESA_FORMAT_ALPHA_INT16,
798 "MESA_FORMAT_ALPHA_INT16",
799 GL_ALPHA,
800 GL_INT,
801 0, 0, 0, 16,
802 0, 0, 0, 0, 0,
803 1, 1, 2
804 },
805 {
806 MESA_FORMAT_ALPHA_INT32,
807 "MESA_FORMAT_ALPHA_INT32",
808 GL_ALPHA,
809 GL_INT,
810 0, 0, 0, 32,
811 0, 0, 0, 0, 0,
812 1, 1, 4
813 },
814 {
815 MESA_FORMAT_INTENSITY_UINT8,
816 "MESA_FORMAT_INTENSITY_UINT8",
817 GL_INTENSITY,
818 GL_UNSIGNED_INT,
819 0, 0, 0, 0,
820 0, 8, 0, 0, 0,
821 1, 1, 1
822 },
823 {
824 MESA_FORMAT_INTENSITY_UINT16,
825 "MESA_FORMAT_INTENSITY_UINT16",
826 GL_INTENSITY,
827 GL_UNSIGNED_INT,
828 0, 0, 0, 0,
829 0, 16, 0, 0, 0,
830 1, 1, 2
831 },
832 {
833 MESA_FORMAT_INTENSITY_UINT32,
834 "MESA_FORMAT_INTENSITY_UINT32",
835 GL_INTENSITY,
836 GL_UNSIGNED_INT,
837 0, 0, 0, 0,
838 0, 32, 0, 0, 0,
839 1, 1, 4
840 },
841 {
842 MESA_FORMAT_INTENSITY_INT8,
843 "MESA_FORMAT_INTENSITY_INT8",
844 GL_INTENSITY,
845 GL_INT,
846 0, 0, 0, 0,
847 0, 8, 0, 0, 0,
848 1, 1, 1
849 },
850 {
851 MESA_FORMAT_INTENSITY_INT16,
852 "MESA_FORMAT_INTENSITY_INT16",
853 GL_INTENSITY,
854 GL_INT,
855 0, 0, 0, 0,
856 0, 16, 0, 0, 0,
857 1, 1, 2
858 },
859 {
860 MESA_FORMAT_INTENSITY_INT32,
861 "MESA_FORMAT_INTENSITY_INT32",
862 GL_INTENSITY,
863 GL_INT,
864 0, 0, 0, 0,
865 0, 32, 0, 0, 0,
866 1, 1, 4
867 },
868 {
869 MESA_FORMAT_LUMINANCE_UINT8,
870 "MESA_FORMAT_LUMINANCE_UINT8",
871 GL_LUMINANCE,
872 GL_UNSIGNED_INT,
873 0, 0, 0, 0,
874 8, 0, 0, 0, 0,
875 1, 1, 1
876 },
877 {
878 MESA_FORMAT_LUMINANCE_UINT16,
879 "MESA_FORMAT_LUMINANCE_UINT16",
880 GL_LUMINANCE,
881 GL_UNSIGNED_INT,
882 0, 0, 0, 0,
883 16, 0, 0, 0, 0,
884 1, 1, 2
885 },
886 {
887 MESA_FORMAT_LUMINANCE_UINT32,
888 "MESA_FORMAT_LUMINANCE_UINT32",
889 GL_LUMINANCE,
890 GL_UNSIGNED_INT,
891 0, 0, 0, 0,
892 32, 0, 0, 0, 0,
893 1, 1, 4
894 },
895 {
896 MESA_FORMAT_LUMINANCE_INT8,
897 "MESA_FORMAT_LUMINANCE_INT8",
898 GL_LUMINANCE,
899 GL_INT,
900 0, 0, 0, 0,
901 8, 0, 0, 0, 0,
902 1, 1, 1
903 },
904 {
905 MESA_FORMAT_LUMINANCE_INT16,
906 "MESA_FORMAT_LUMINANCE_INT16",
907 GL_LUMINANCE,
908 GL_INT,
909 0, 0, 0, 0,
910 16, 0, 0, 0, 0,
911 1, 1, 2
912 },
913 {
914 MESA_FORMAT_LUMINANCE_INT32,
915 "MESA_FORMAT_LUMINANCE_INT32",
916 GL_LUMINANCE,
917 GL_INT,
918 0, 0, 0, 0,
919 32, 0, 0, 0, 0,
920 1, 1, 4
921 },
922 {
923 MESA_FORMAT_LUMINANCE_ALPHA_UINT8,
924 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
925 GL_LUMINANCE_ALPHA,
926 GL_UNSIGNED_INT,
927 0, 0, 0, 8,
928 8, 0, 0, 0, 0,
929 1, 1, 2
930 },
931 {
932 MESA_FORMAT_LUMINANCE_ALPHA_UINT16,
933 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
934 GL_LUMINANCE_ALPHA,
935 GL_UNSIGNED_INT,
936 0, 0, 0, 16,
937 16, 0, 0, 0, 0,
938 1, 1, 4
939 },
940 {
941 MESA_FORMAT_LUMINANCE_ALPHA_UINT32,
942 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
943 GL_LUMINANCE_ALPHA,
944 GL_UNSIGNED_INT,
945 0, 0, 0, 32,
946 32, 0, 0, 0, 0,
947 1, 1, 8
948 },
949 {
950 MESA_FORMAT_LUMINANCE_ALPHA_INT8,
951 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
952 GL_LUMINANCE_ALPHA,
953 GL_INT,
954 0, 0, 0, 8,
955 8, 0, 0, 0, 0,
956 1, 1, 2
957 },
958 {
959 MESA_FORMAT_LUMINANCE_ALPHA_INT16,
960 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
961 GL_LUMINANCE_ALPHA,
962 GL_INT,
963 0, 0, 0, 16,
964 16, 0, 0, 0, 0,
965 1, 1, 4
966 },
967 {
968 MESA_FORMAT_LUMINANCE_ALPHA_INT32,
969 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
970 GL_LUMINANCE_ALPHA,
971 GL_INT,
972 0, 0, 0, 32,
973 32, 0, 0, 0, 0,
974 1, 1, 8
975 },
976
977 {
978 MESA_FORMAT_R_INT8,
979 "MESA_FORMAT_R_INT8",
980 GL_RED,
981 GL_INT,
982 8, 0, 0, 0,
983 0, 0, 0, 0, 0,
984 1, 1, 1
985 },
986 {
987 MESA_FORMAT_RG_INT8,
988 "MESA_FORMAT_RG_INT8",
989 GL_RG,
990 GL_INT,
991 8, 8, 0, 0,
992 0, 0, 0, 0, 0,
993 1, 1, 2
994 },
995 {
996 MESA_FORMAT_RGB_INT8,
997 "MESA_FORMAT_RGB_INT8",
998 GL_RGB,
999 GL_INT,
1000 8, 8, 8, 0,
1001 0, 0, 0, 0, 0,
1002 1, 1, 3
1003 },
1004 {
1005 MESA_FORMAT_RGBA_INT8,
1006 "MESA_FORMAT_RGBA_INT8",
1007 GL_RGBA,
1008 GL_INT,
1009 8, 8, 8, 8,
1010 0, 0, 0, 0, 0,
1011 1, 1, 4
1012 },
1013 {
1014 MESA_FORMAT_R_INT16,
1015 "MESA_FORMAT_R_INT16",
1016 GL_RED,
1017 GL_INT,
1018 16, 0, 0, 0,
1019 0, 0, 0, 0, 0,
1020 1, 1, 2
1021 },
1022 {
1023 MESA_FORMAT_RG_INT16,
1024 "MESA_FORMAT_RG_INT16",
1025 GL_RG,
1026 GL_INT,
1027 16, 16, 0, 0,
1028 0, 0, 0, 0, 0,
1029 1, 1, 4
1030 },
1031 {
1032 MESA_FORMAT_RGB_INT16,
1033 "MESA_FORMAT_RGB_INT16",
1034 GL_RGB,
1035 GL_INT,
1036 16, 16, 16, 0,
1037 0, 0, 0, 0, 0,
1038 1, 1, 6
1039 },
1040 {
1041 MESA_FORMAT_RGBA_INT16,
1042 "MESA_FORMAT_RGBA_INT16",
1043 GL_RGBA,
1044 GL_INT,
1045 16, 16, 16, 16,
1046 0, 0, 0, 0, 0,
1047 1, 1, 8
1048 },
1049 {
1050 MESA_FORMAT_R_INT32,
1051 "MESA_FORMAT_R_INT32",
1052 GL_RED,
1053 GL_INT,
1054 32, 0, 0, 0,
1055 0, 0, 0, 0, 0,
1056 1, 1, 4
1057 },
1058 {
1059 MESA_FORMAT_RG_INT32,
1060 "MESA_FORMAT_RG_INT32",
1061 GL_RG,
1062 GL_INT,
1063 32, 32, 0, 0,
1064 0, 0, 0, 0, 0,
1065 1, 1, 8
1066 },
1067 {
1068 MESA_FORMAT_RGB_INT32,
1069 "MESA_FORMAT_RGB_INT32",
1070 GL_RGB,
1071 GL_INT,
1072 32, 32, 32, 0,
1073 0, 0, 0, 0, 0,
1074 1, 1, 12
1075 },
1076 {
1077 MESA_FORMAT_RGBA_INT32,
1078 "MESA_FORMAT_RGBA_INT32",
1079 GL_RGBA,
1080 GL_INT,
1081 32, 32, 32, 32,
1082 0, 0, 0, 0, 0,
1083 1, 1, 16
1084 },
1085 {
1086 MESA_FORMAT_R_UINT8,
1087 "MESA_FORMAT_R_UINT8",
1088 GL_RED,
1089 GL_UNSIGNED_INT,
1090 8, 0, 0, 0,
1091 0, 0, 0, 0, 0,
1092 1, 1, 1
1093 },
1094 {
1095 MESA_FORMAT_RG_UINT8,
1096 "MESA_FORMAT_RG_UINT8",
1097 GL_RG,
1098 GL_UNSIGNED_INT,
1099 8, 8, 0, 0,
1100 0, 0, 0, 0, 0,
1101 1, 1, 2
1102 },
1103 {
1104 MESA_FORMAT_RGB_UINT8,
1105 "MESA_FORMAT_RGB_UINT8",
1106 GL_RGB,
1107 GL_UNSIGNED_INT,
1108 8, 8, 8, 0,
1109 0, 0, 0, 0, 0,
1110 1, 1, 3
1111 },
1112 {
1113 MESA_FORMAT_RGBA_UINT8,
1114 "MESA_FORMAT_RGBA_UINT8",
1115 GL_RGBA,
1116 GL_UNSIGNED_INT,
1117 8, 8, 8, 8,
1118 0, 0, 0, 0, 0,
1119 1, 1, 4
1120 },
1121 {
1122 MESA_FORMAT_R_UINT16,
1123 "MESA_FORMAT_R_UINT16",
1124 GL_RED,
1125 GL_UNSIGNED_INT,
1126 16, 0, 0, 0,
1127 0, 0, 0, 0, 0,
1128 1, 1, 2
1129 },
1130 {
1131 MESA_FORMAT_RG_UINT16,
1132 "MESA_FORMAT_RG_UINT16",
1133 GL_RG,
1134 GL_UNSIGNED_INT,
1135 16, 16, 0, 0,
1136 0, 0, 0, 0, 0,
1137 1, 1, 4
1138 },
1139 {
1140 MESA_FORMAT_RGB_UINT16,
1141 "MESA_FORMAT_RGB_UINT16",
1142 GL_RGB,
1143 GL_UNSIGNED_INT,
1144 16, 16, 16, 0,
1145 0, 0, 0, 0, 0,
1146 1, 1, 6
1147 },
1148 {
1149 MESA_FORMAT_RGBA_UINT16,
1150 "MESA_FORMAT_RGBA_UINT16",
1151 GL_RGBA,
1152 GL_UNSIGNED_INT,
1153 16, 16, 16, 16,
1154 0, 0, 0, 0, 0,
1155 1, 1, 8
1156 },
1157 {
1158 MESA_FORMAT_R_UINT32,
1159 "MESA_FORMAT_R_UINT32",
1160 GL_RED,
1161 GL_UNSIGNED_INT,
1162 32, 0, 0, 0,
1163 0, 0, 0, 0, 0,
1164 1, 1, 4
1165 },
1166 {
1167 MESA_FORMAT_RG_UINT32,
1168 "MESA_FORMAT_RG_UINT32",
1169 GL_RG,
1170 GL_UNSIGNED_INT,
1171 32, 32, 0, 0,
1172 0, 0, 0, 0, 0,
1173 1, 1, 8
1174 },
1175 {
1176 MESA_FORMAT_RGB_UINT32,
1177 "MESA_FORMAT_RGB_UINT32",
1178 GL_RGB,
1179 GL_UNSIGNED_INT,
1180 32, 32, 32, 0,
1181 0, 0, 0, 0, 0,
1182 1, 1, 12
1183 },
1184 {
1185 MESA_FORMAT_RGBA_UINT32,
1186 "MESA_FORMAT_RGBA_UINT32",
1187 GL_RGBA,
1188 GL_UNSIGNED_INT,
1189 32, 32, 32, 32,
1190 0, 0, 0, 0, 0,
1191 1, 1, 16
1192 },
1193
1194
1195 {
1196 MESA_FORMAT_DUDV8,
1197 "MESA_FORMAT_DUDV8",
1198 GL_DUDV_ATI,
1199 GL_SIGNED_NORMALIZED,
1200 0, 0, 0, 0,
1201 0, 0, 0, 0, 0,
1202 1, 1, 2
1203 },
1204
1205 /* Signed 8 bits / channel */
1206 {
1207 MESA_FORMAT_SIGNED_R8, /* Name */
1208 "MESA_FORMAT_SIGNED_R8", /* StrName */
1209 GL_RED, /* BaseFormat */
1210 GL_SIGNED_NORMALIZED, /* DataType */
1211 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1212 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1213 1, 1, 1 /* BlockWidth/Height,Bytes */
1214 },
1215 {
1216 MESA_FORMAT_SIGNED_RG88_REV,
1217 "MESA_FORMAT_SIGNED_RG88_REV",
1218 GL_RG,
1219 GL_SIGNED_NORMALIZED,
1220 8, 8, 0, 0,
1221 0, 0, 0, 0, 0,
1222 1, 1, 2
1223 },
1224 {
1225 MESA_FORMAT_SIGNED_RGBX8888,
1226 "MESA_FORMAT_SIGNED_RGBX8888",
1227 GL_RGB,
1228 GL_SIGNED_NORMALIZED,
1229 8, 8, 8, 0,
1230 0, 0, 0, 0, 0,
1231 1, 1, 4 /* 4 bpp, but no alpha */
1232 },
1233 {
1234 MESA_FORMAT_SIGNED_RGBA8888,
1235 "MESA_FORMAT_SIGNED_RGBA8888",
1236 GL_RGBA,
1237 GL_SIGNED_NORMALIZED,
1238 8, 8, 8, 8,
1239 0, 0, 0, 0, 0,
1240 1, 1, 4
1241 },
1242 {
1243 MESA_FORMAT_SIGNED_RGBA8888_REV,
1244 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1245 GL_RGBA,
1246 GL_SIGNED_NORMALIZED,
1247 8, 8, 8, 8,
1248 0, 0, 0, 0, 0,
1249 1, 1, 4
1250 },
1251
1252 /* Signed 16 bits / channel */
1253 {
1254 MESA_FORMAT_SIGNED_R16,
1255 "MESA_FORMAT_SIGNED_R16",
1256 GL_RED,
1257 GL_SIGNED_NORMALIZED,
1258 16, 0, 0, 0,
1259 0, 0, 0, 0, 0,
1260 1, 1, 2
1261 },
1262 {
1263 MESA_FORMAT_SIGNED_GR1616,
1264 "MESA_FORMAT_SIGNED_GR1616",
1265 GL_RG,
1266 GL_SIGNED_NORMALIZED,
1267 16, 16, 0, 0,
1268 0, 0, 0, 0, 0,
1269 1, 1, 4
1270 },
1271 {
1272 MESA_FORMAT_SIGNED_RGB_16,
1273 "MESA_FORMAT_SIGNED_RGB_16",
1274 GL_RGB,
1275 GL_SIGNED_NORMALIZED,
1276 16, 16, 16, 0,
1277 0, 0, 0, 0, 0,
1278 1, 1, 6
1279 },
1280 {
1281 MESA_FORMAT_SIGNED_RGBA_16,
1282 "MESA_FORMAT_SIGNED_RGBA_16",
1283 GL_RGBA,
1284 GL_SIGNED_NORMALIZED,
1285 16, 16, 16, 16,
1286 0, 0, 0, 0, 0,
1287 1, 1, 8
1288 },
1289 {
1290 MESA_FORMAT_RGBA_16,
1291 "MESA_FORMAT_RGBA_16",
1292 GL_RGBA,
1293 GL_UNSIGNED_NORMALIZED,
1294 16, 16, 16, 16,
1295 0, 0, 0, 0, 0,
1296 1, 1, 8
1297 },
1298 {
1299 MESA_FORMAT_RED_RGTC1,
1300 "MESA_FORMAT_RED_RGTC1",
1301 GL_RED,
1302 GL_UNSIGNED_NORMALIZED,
1303 4, 0, 0, 0,
1304 0, 0, 0, 0, 0,
1305 4, 4, 8 /* 8 bytes per 4x4 block */
1306 },
1307 {
1308 MESA_FORMAT_SIGNED_RED_RGTC1,
1309 "MESA_FORMAT_SIGNED_RED_RGTC1",
1310 GL_RED,
1311 GL_SIGNED_NORMALIZED,
1312 4, 0, 0, 0,
1313 0, 0, 0, 0, 0,
1314 4, 4, 8 /* 8 bytes per 4x4 block */
1315 },
1316 {
1317 MESA_FORMAT_RG_RGTC2,
1318 "MESA_FORMAT_RG_RGTC2",
1319 GL_RG,
1320 GL_UNSIGNED_NORMALIZED,
1321 4, 4, 0, 0,
1322 0, 0, 0, 0, 0,
1323 4, 4, 16 /* 16 bytes per 4x4 block */
1324 },
1325 {
1326 MESA_FORMAT_SIGNED_RG_RGTC2,
1327 "MESA_FORMAT_SIGNED_RG_RGTC2",
1328 GL_RG,
1329 GL_SIGNED_NORMALIZED,
1330 4, 4, 0, 0,
1331 0, 0, 0, 0, 0,
1332 4, 4, 16 /* 16 bytes per 4x4 block */
1333 },
1334 {
1335 MESA_FORMAT_L_LATC1,
1336 "MESA_FORMAT_L_LATC1",
1337 GL_LUMINANCE,
1338 GL_UNSIGNED_NORMALIZED,
1339 0, 0, 0, 0,
1340 4, 0, 0, 0, 0,
1341 4, 4, 8 /* 8 bytes per 4x4 block */
1342 },
1343 {
1344 MESA_FORMAT_SIGNED_L_LATC1,
1345 "MESA_FORMAT_SIGNED_L_LATC1",
1346 GL_LUMINANCE,
1347 GL_SIGNED_NORMALIZED,
1348 0, 0, 0, 0,
1349 4, 0, 0, 0, 0,
1350 4, 4, 8 /* 8 bytes per 4x4 block */
1351 },
1352 {
1353 MESA_FORMAT_LA_LATC2,
1354 "MESA_FORMAT_LA_LATC2",
1355 GL_LUMINANCE_ALPHA,
1356 GL_UNSIGNED_NORMALIZED,
1357 0, 0, 0, 4,
1358 4, 0, 0, 0, 0,
1359 4, 4, 16 /* 16 bytes per 4x4 block */
1360 },
1361 {
1362 MESA_FORMAT_SIGNED_LA_LATC2,
1363 "MESA_FORMAT_SIGNED_LA_LATC2",
1364 GL_LUMINANCE_ALPHA,
1365 GL_SIGNED_NORMALIZED,
1366 0, 0, 0, 4,
1367 4, 0, 0, 0, 0,
1368 4, 4, 16 /* 16 bytes per 4x4 block */
1369 },
1370
1371 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1372 {
1373 MESA_FORMAT_SIGNED_A8,
1374 "MESA_FORMAT_SIGNED_A8",
1375 GL_ALPHA,
1376 GL_SIGNED_NORMALIZED,
1377 0, 0, 0, 8,
1378 0, 0, 0, 0, 0,
1379 1, 1, 1
1380 },
1381 {
1382 MESA_FORMAT_SIGNED_L8,
1383 "MESA_FORMAT_SIGNED_L8",
1384 GL_LUMINANCE,
1385 GL_SIGNED_NORMALIZED,
1386 0, 0, 0, 0,
1387 8, 0, 0, 0, 0,
1388 1, 1, 1
1389 },
1390 {
1391 MESA_FORMAT_SIGNED_AL88,
1392 "MESA_FORMAT_SIGNED_AL88",
1393 GL_LUMINANCE_ALPHA,
1394 GL_SIGNED_NORMALIZED,
1395 0, 0, 0, 8,
1396 8, 0, 0, 0, 0,
1397 1, 1, 2
1398 },
1399 {
1400 MESA_FORMAT_SIGNED_I8,
1401 "MESA_FORMAT_SIGNED_I8",
1402 GL_INTENSITY,
1403 GL_SIGNED_NORMALIZED,
1404 0, 0, 0, 0,
1405 0, 8, 0, 0, 0,
1406 1, 1, 1
1407 },
1408 {
1409 MESA_FORMAT_SIGNED_A16,
1410 "MESA_FORMAT_SIGNED_A16",
1411 GL_ALPHA,
1412 GL_SIGNED_NORMALIZED,
1413 0, 0, 0, 16,
1414 0, 0, 0, 0, 0,
1415 1, 1, 2
1416 },
1417 {
1418 MESA_FORMAT_SIGNED_L16,
1419 "MESA_FORMAT_SIGNED_L16",
1420 GL_LUMINANCE,
1421 GL_SIGNED_NORMALIZED,
1422 0, 0, 0, 0,
1423 16, 0, 0, 0, 0,
1424 1, 1, 2
1425 },
1426 {
1427 MESA_FORMAT_SIGNED_AL1616,
1428 "MESA_FORMAT_SIGNED_AL1616",
1429 GL_LUMINANCE_ALPHA,
1430 GL_SIGNED_NORMALIZED,
1431 0, 0, 0, 16,
1432 16, 0, 0, 0, 0,
1433 1, 1, 4
1434 },
1435 {
1436 MESA_FORMAT_SIGNED_I16,
1437 "MESA_FORMAT_SIGNED_I16",
1438 GL_INTENSITY,
1439 GL_SIGNED_NORMALIZED,
1440 0, 0, 0, 0,
1441 0, 16, 0, 0, 0,
1442 1, 1, 2
1443 },
1444 {
1445 MESA_FORMAT_RGB9_E5_FLOAT,
1446 "MESA_FORMAT_RGB9_E5",
1447 GL_RGB,
1448 GL_FLOAT,
1449 9, 9, 9, 0,
1450 0, 0, 0, 0, 0,
1451 1, 1, 4
1452 },
1453 {
1454 MESA_FORMAT_R11_G11_B10_FLOAT,
1455 "MESA_FORMAT_R11_G11_B10_FLOAT",
1456 GL_RGB,
1457 GL_FLOAT,
1458 11, 11, 10, 0,
1459 0, 0, 0, 0, 0,
1460 1, 1, 4
1461 },
1462 /* ARB_depth_buffer_float */
1463 {
1464 MESA_FORMAT_Z32_FLOAT, /* Name */
1465 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1466 GL_DEPTH_COMPONENT, /* BaseFormat */
1467 GL_FLOAT, /* DataType */
1468 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1469 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1470 1, 1, 4 /* BlockWidth/Height,Bytes */
1471 },
1472 {
1473 MESA_FORMAT_Z32_FLOAT_X24S8, /* Name */
1474 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1475 GL_DEPTH_STENCIL, /* BaseFormat */
1476 GL_NONE /* XXX */, /* DataType */
1477 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1478 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1479 1, 1, 8 /* BlockWidth/Height,Bytes */
1480 },
1481 };
1482
1483
1484
1485 static const struct gl_format_info *
1486 _mesa_get_format_info(gl_format format)
1487 {
1488 const struct gl_format_info *info = &format_info[format];
1489 assert(info->Name == format);
1490 return info;
1491 }
1492
1493
1494 /** Return string name of format (for debugging) */
1495 const char *
1496 _mesa_get_format_name(gl_format format)
1497 {
1498 const struct gl_format_info *info = _mesa_get_format_info(format);
1499 return info->StrName;
1500 }
1501
1502
1503
1504 /**
1505 * Return bytes needed to store a block of pixels in the given format.
1506 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1507 * a block may be 4x4 or 8x4, etc.
1508 *
1509 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1510 */
1511 GLint
1512 _mesa_get_format_bytes(gl_format format)
1513 {
1514 const struct gl_format_info *info = _mesa_get_format_info(format);
1515 ASSERT(info->BytesPerBlock);
1516 return info->BytesPerBlock;
1517 }
1518
1519
1520 /**
1521 * Return bits per component for the given format.
1522 * \param format one of MESA_FORMAT_x
1523 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1524 */
1525 GLint
1526 _mesa_get_format_bits(gl_format format, GLenum pname)
1527 {
1528 const struct gl_format_info *info = _mesa_get_format_info(format);
1529
1530 switch (pname) {
1531 case GL_RED_BITS:
1532 case GL_TEXTURE_RED_SIZE:
1533 case GL_RENDERBUFFER_RED_SIZE_EXT:
1534 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE:
1535 return info->RedBits;
1536 case GL_GREEN_BITS:
1537 case GL_TEXTURE_GREEN_SIZE:
1538 case GL_RENDERBUFFER_GREEN_SIZE_EXT:
1539 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE:
1540 return info->GreenBits;
1541 case GL_BLUE_BITS:
1542 case GL_TEXTURE_BLUE_SIZE:
1543 case GL_RENDERBUFFER_BLUE_SIZE_EXT:
1544 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE:
1545 return info->BlueBits;
1546 case GL_ALPHA_BITS:
1547 case GL_TEXTURE_ALPHA_SIZE:
1548 case GL_RENDERBUFFER_ALPHA_SIZE_EXT:
1549 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE:
1550 return info->AlphaBits;
1551 case GL_TEXTURE_INTENSITY_SIZE:
1552 return info->IntensityBits;
1553 case GL_TEXTURE_LUMINANCE_SIZE:
1554 return info->LuminanceBits;
1555 case GL_INDEX_BITS:
1556 return info->IndexBits;
1557 case GL_DEPTH_BITS:
1558 case GL_TEXTURE_DEPTH_SIZE_ARB:
1559 case GL_RENDERBUFFER_DEPTH_SIZE_EXT:
1560 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE:
1561 return info->DepthBits;
1562 case GL_STENCIL_BITS:
1563 case GL_TEXTURE_STENCIL_SIZE_EXT:
1564 case GL_RENDERBUFFER_STENCIL_SIZE_EXT:
1565 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE:
1566 return info->StencilBits;
1567 default:
1568 _mesa_problem(NULL, "bad pname in _mesa_get_format_bits()");
1569 return 0;
1570 }
1571 }
1572
1573
1574 /**
1575 * Return the data type (or more specifically, the data representation)
1576 * for the given format.
1577 * The return value will be one of:
1578 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1579 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1580 * GL_UNSIGNED_INT = an ordinary unsigned integer
1581 * GL_INT = an ordinary signed integer
1582 * GL_FLOAT = an ordinary float
1583 */
1584 GLenum
1585 _mesa_get_format_datatype(gl_format format)
1586 {
1587 const struct gl_format_info *info = _mesa_get_format_info(format);
1588 return info->DataType;
1589 }
1590
1591
1592 /**
1593 * Return the basic format for the given type. The result will be one of
1594 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1595 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1596 */
1597 GLenum
1598 _mesa_get_format_base_format(gl_format format)
1599 {
1600 const struct gl_format_info *info = _mesa_get_format_info(format);
1601 return info->BaseFormat;
1602 }
1603
1604
1605 /**
1606 * Return the block size (in pixels) for the given format. Normally
1607 * the block size is 1x1. But compressed formats will have block sizes
1608 * of 4x4 or 8x4 pixels, etc.
1609 * \param bw returns block width in pixels
1610 * \param bh returns block height in pixels
1611 */
1612 void
1613 _mesa_get_format_block_size(gl_format format, GLuint *bw, GLuint *bh)
1614 {
1615 const struct gl_format_info *info = _mesa_get_format_info(format);
1616 *bw = info->BlockWidth;
1617 *bh = info->BlockHeight;
1618 }
1619
1620
1621 /** Is the given format a compressed format? */
1622 GLboolean
1623 _mesa_is_format_compressed(gl_format format)
1624 {
1625 const struct gl_format_info *info = _mesa_get_format_info(format);
1626 return info->BlockWidth > 1 || info->BlockHeight > 1;
1627 }
1628
1629
1630 /**
1631 * Determine if the given format represents a packed depth/stencil buffer.
1632 */
1633 GLboolean
1634 _mesa_is_format_packed_depth_stencil(gl_format format)
1635 {
1636 const struct gl_format_info *info = _mesa_get_format_info(format);
1637
1638 return info->BaseFormat == GL_DEPTH_STENCIL;
1639 }
1640
1641
1642 /**
1643 * Is the given format a signed/unsigned integer color format?
1644 */
1645 GLboolean
1646 _mesa_is_format_integer_color(gl_format format)
1647 {
1648 const struct gl_format_info *info = _mesa_get_format_info(format);
1649 return (info->DataType == GL_INT || info->DataType == GL_UNSIGNED_INT) &&
1650 info->BaseFormat != GL_DEPTH_COMPONENT &&
1651 info->BaseFormat != GL_DEPTH_STENCIL &&
1652 info->BaseFormat != GL_STENCIL_INDEX;
1653 }
1654
1655
1656 /**
1657 * Return color encoding for given format.
1658 * \return GL_LINEAR or GL_SRGB
1659 */
1660 GLenum
1661 _mesa_get_format_color_encoding(gl_format format)
1662 {
1663 /* XXX this info should be encoded in gl_format_info */
1664 switch (format) {
1665 case MESA_FORMAT_SRGB8:
1666 case MESA_FORMAT_SRGBA8:
1667 case MESA_FORMAT_SARGB8:
1668 case MESA_FORMAT_SL8:
1669 case MESA_FORMAT_SLA8:
1670 case MESA_FORMAT_SRGB_DXT1:
1671 case MESA_FORMAT_SRGBA_DXT1:
1672 case MESA_FORMAT_SRGBA_DXT3:
1673 case MESA_FORMAT_SRGBA_DXT5:
1674 return GL_SRGB;
1675 default:
1676 return GL_LINEAR;
1677 }
1678 }
1679
1680
1681 /**
1682 * For an sRGB format, return the corresponding linear color space format.
1683 * For non-sRGB formats, return the format as-is.
1684 */
1685 gl_format
1686 _mesa_get_srgb_format_linear(gl_format format)
1687 {
1688 switch (format) {
1689 case MESA_FORMAT_SRGB8:
1690 format = MESA_FORMAT_RGB888;
1691 break;
1692 case MESA_FORMAT_SRGBA8:
1693 format = MESA_FORMAT_RGBA8888;
1694 break;
1695 case MESA_FORMAT_SARGB8:
1696 format = MESA_FORMAT_ARGB8888;
1697 break;
1698 case MESA_FORMAT_SL8:
1699 format = MESA_FORMAT_L8;
1700 break;
1701 case MESA_FORMAT_SLA8:
1702 format = MESA_FORMAT_AL88;
1703 break;
1704 case MESA_FORMAT_SRGB_DXT1:
1705 format = MESA_FORMAT_RGB_DXT1;
1706 break;
1707 case MESA_FORMAT_SRGBA_DXT1:
1708 format = MESA_FORMAT_RGBA_DXT1;
1709 break;
1710 case MESA_FORMAT_SRGBA_DXT3:
1711 format = MESA_FORMAT_RGBA_DXT3;
1712 break;
1713 case MESA_FORMAT_SRGBA_DXT5:
1714 format = MESA_FORMAT_RGBA_DXT5;
1715 break;
1716 default:
1717 break;
1718 }
1719 return format;
1720 }
1721
1722
1723 /**
1724 * If the given format is a compressed format, return a corresponding
1725 * uncompressed format.
1726 */
1727 gl_format
1728 _mesa_get_uncompressed_format(gl_format format)
1729 {
1730 switch (format) {
1731 case MESA_FORMAT_RGB_FXT1:
1732 return MESA_FORMAT_RGB888;
1733 case MESA_FORMAT_RGBA_FXT1:
1734 return MESA_FORMAT_RGBA8888;
1735 case MESA_FORMAT_RGB_DXT1:
1736 case MESA_FORMAT_SRGB_DXT1:
1737 return MESA_FORMAT_RGB888;
1738 case MESA_FORMAT_RGBA_DXT1:
1739 case MESA_FORMAT_SRGBA_DXT1:
1740 return MESA_FORMAT_RGBA8888;
1741 case MESA_FORMAT_RGBA_DXT3:
1742 case MESA_FORMAT_SRGBA_DXT3:
1743 return MESA_FORMAT_RGBA8888;
1744 case MESA_FORMAT_RGBA_DXT5:
1745 case MESA_FORMAT_SRGBA_DXT5:
1746 return MESA_FORMAT_RGBA8888;
1747 case MESA_FORMAT_RED_RGTC1:
1748 return MESA_FORMAT_R8;
1749 case MESA_FORMAT_SIGNED_RED_RGTC1:
1750 return MESA_FORMAT_SIGNED_R8;
1751 case MESA_FORMAT_RG_RGTC2:
1752 return MESA_FORMAT_RG88;
1753 case MESA_FORMAT_SIGNED_RG_RGTC2:
1754 return MESA_FORMAT_SIGNED_RG88_REV;
1755 case MESA_FORMAT_L_LATC1:
1756 return MESA_FORMAT_L8;
1757 case MESA_FORMAT_SIGNED_L_LATC1:
1758 return MESA_FORMAT_SIGNED_L8;
1759 case MESA_FORMAT_LA_LATC2:
1760 return MESA_FORMAT_AL88;
1761 case MESA_FORMAT_SIGNED_LA_LATC2:
1762 return MESA_FORMAT_SIGNED_AL88;
1763 default:
1764 #ifdef DEBUG
1765 assert(!_mesa_is_format_compressed(format));
1766 #endif
1767 return format;
1768 }
1769 }
1770
1771
1772 GLuint
1773 _mesa_format_num_components(gl_format format)
1774 {
1775 const struct gl_format_info *info = _mesa_get_format_info(format);
1776 return ((info->RedBits > 0) +
1777 (info->GreenBits > 0) +
1778 (info->BlueBits > 0) +
1779 (info->AlphaBits > 0) +
1780 (info->LuminanceBits > 0) +
1781 (info->IntensityBits > 0) +
1782 (info->DepthBits > 0) +
1783 (info->StencilBits > 0));
1784 }
1785
1786
1787 /**
1788 * Return number of bytes needed to store an image of the given size
1789 * in the given format.
1790 */
1791 GLuint
1792 _mesa_format_image_size(gl_format format, GLsizei width,
1793 GLsizei height, GLsizei depth)
1794 {
1795 const struct gl_format_info *info = _mesa_get_format_info(format);
1796 /* Strictly speaking, a conditional isn't needed here */
1797 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1798 /* compressed format (2D only for now) */
1799 const GLuint bw = info->BlockWidth, bh = info->BlockHeight;
1800 const GLuint wblocks = (width + bw - 1) / bw;
1801 const GLuint hblocks = (height + bh - 1) / bh;
1802 const GLuint sz = wblocks * hblocks * info->BytesPerBlock;
1803 assert(depth == 1);
1804 return sz;
1805 }
1806 else {
1807 /* non-compressed */
1808 const GLuint sz = width * height * depth * info->BytesPerBlock;
1809 return sz;
1810 }
1811 }
1812
1813
1814 /**
1815 * Same as _mesa_format_image_size() but returns a 64-bit value to
1816 * accomodate very large textures.
1817 */
1818 uint64_t
1819 _mesa_format_image_size64(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 uint64_t bw = info->BlockWidth, bh = info->BlockHeight;
1827 const uint64_t wblocks = (width + bw - 1) / bw;
1828 const uint64_t hblocks = (height + bh - 1) / bh;
1829 const uint64_t sz = wblocks * hblocks * info->BytesPerBlock;
1830 assert(depth == 1);
1831 return sz;
1832 }
1833 else {
1834 /* non-compressed */
1835 const uint64_t sz = ((uint64_t) width *
1836 (uint64_t) height *
1837 (uint64_t) depth *
1838 info->BytesPerBlock);
1839 return sz;
1840 }
1841 }
1842
1843
1844
1845 GLint
1846 _mesa_format_row_stride(gl_format format, GLsizei width)
1847 {
1848 const struct gl_format_info *info = _mesa_get_format_info(format);
1849 /* Strictly speaking, a conditional isn't needed here */
1850 if (info->BlockWidth > 1 || info->BlockHeight > 1) {
1851 /* compressed format */
1852 const GLuint bw = info->BlockWidth;
1853 const GLuint wblocks = (width + bw - 1) / bw;
1854 const GLint stride = wblocks * info->BytesPerBlock;
1855 return stride;
1856 }
1857 else {
1858 const GLint stride = width * info->BytesPerBlock;
1859 return stride;
1860 }
1861 }
1862
1863
1864 /**
1865 * Debug/test: check that all formats are handled in the
1866 * _mesa_format_to_type_and_comps() function. When new pixel formats
1867 * are added to Mesa, that function needs to be updated.
1868 * This is a no-op after the first call.
1869 */
1870 static void
1871 check_format_to_type_and_comps(void)
1872 {
1873 gl_format f;
1874
1875 for (f = MESA_FORMAT_NONE + 1; f < MESA_FORMAT_COUNT; f++) {
1876 GLenum datatype = 0;
1877 GLuint comps = 0;
1878 /* This function will emit a problem/warning if the format is
1879 * not handled.
1880 */
1881 _mesa_format_to_type_and_comps(f, &datatype, &comps);
1882 }
1883 }
1884
1885
1886 /**
1887 * Do sanity checking of the format info table.
1888 */
1889 void
1890 _mesa_test_formats(void)
1891 {
1892 GLuint i;
1893
1894 assert(Elements(format_info) == MESA_FORMAT_COUNT);
1895
1896 for (i = 0; i < MESA_FORMAT_COUNT; i++) {
1897 const struct gl_format_info *info = _mesa_get_format_info(i);
1898 assert(info);
1899
1900 assert(info->Name == i);
1901
1902 if (info->Name == MESA_FORMAT_NONE)
1903 continue;
1904
1905 if (info->BlockWidth == 1 && info->BlockHeight == 1) {
1906 if (info->RedBits > 0) {
1907 GLuint t = info->RedBits + info->GreenBits
1908 + info->BlueBits + info->AlphaBits;
1909 assert(t / 8 <= info->BytesPerBlock);
1910 (void) t;
1911 }
1912 }
1913
1914 assert(info->DataType == GL_UNSIGNED_NORMALIZED ||
1915 info->DataType == GL_SIGNED_NORMALIZED ||
1916 info->DataType == GL_UNSIGNED_INT ||
1917 info->DataType == GL_INT ||
1918 info->DataType == GL_FLOAT ||
1919 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1920 info->DataType == GL_NONE);
1921
1922 if (info->BaseFormat == GL_RGB) {
1923 assert(info->RedBits > 0);
1924 assert(info->GreenBits > 0);
1925 assert(info->BlueBits > 0);
1926 assert(info->AlphaBits == 0);
1927 assert(info->LuminanceBits == 0);
1928 assert(info->IntensityBits == 0);
1929 }
1930 else if (info->BaseFormat == GL_RGBA) {
1931 assert(info->RedBits > 0);
1932 assert(info->GreenBits > 0);
1933 assert(info->BlueBits > 0);
1934 assert(info->AlphaBits > 0);
1935 assert(info->LuminanceBits == 0);
1936 assert(info->IntensityBits == 0);
1937 }
1938 else if (info->BaseFormat == GL_RG) {
1939 assert(info->RedBits > 0);
1940 assert(info->GreenBits > 0);
1941 assert(info->BlueBits == 0);
1942 assert(info->AlphaBits == 0);
1943 assert(info->LuminanceBits == 0);
1944 assert(info->IntensityBits == 0);
1945 }
1946 else if (info->BaseFormat == GL_RED) {
1947 assert(info->RedBits > 0);
1948 assert(info->GreenBits == 0);
1949 assert(info->BlueBits == 0);
1950 assert(info->AlphaBits == 0);
1951 assert(info->LuminanceBits == 0);
1952 assert(info->IntensityBits == 0);
1953 }
1954 else if (info->BaseFormat == GL_LUMINANCE) {
1955 assert(info->RedBits == 0);
1956 assert(info->GreenBits == 0);
1957 assert(info->BlueBits == 0);
1958 assert(info->AlphaBits == 0);
1959 assert(info->LuminanceBits > 0);
1960 assert(info->IntensityBits == 0);
1961 }
1962 else if (info->BaseFormat == GL_INTENSITY) {
1963 assert(info->RedBits == 0);
1964 assert(info->GreenBits == 0);
1965 assert(info->BlueBits == 0);
1966 assert(info->AlphaBits == 0);
1967 assert(info->LuminanceBits == 0);
1968 assert(info->IntensityBits > 0);
1969 }
1970 }
1971
1972 check_format_to_type_and_comps();
1973 }
1974
1975
1976
1977 /**
1978 * Return datatype and number of components per texel for the given gl_format.
1979 * Only used for mipmap generation code.
1980 */
1981 void
1982 _mesa_format_to_type_and_comps(gl_format format,
1983 GLenum *datatype, GLuint *comps)
1984 {
1985 switch (format) {
1986 case MESA_FORMAT_RGBA8888:
1987 case MESA_FORMAT_RGBA8888_REV:
1988 case MESA_FORMAT_ARGB8888:
1989 case MESA_FORMAT_ARGB8888_REV:
1990 case MESA_FORMAT_XRGB8888:
1991 case MESA_FORMAT_XRGB8888_REV:
1992 *datatype = GL_UNSIGNED_BYTE;
1993 *comps = 4;
1994 return;
1995 case MESA_FORMAT_RGB888:
1996 case MESA_FORMAT_BGR888:
1997 *datatype = GL_UNSIGNED_BYTE;
1998 *comps = 3;
1999 return;
2000 case MESA_FORMAT_RGB565:
2001 case MESA_FORMAT_RGB565_REV:
2002 *datatype = GL_UNSIGNED_SHORT_5_6_5;
2003 *comps = 3;
2004 return;
2005
2006 case MESA_FORMAT_ARGB4444:
2007 case MESA_FORMAT_ARGB4444_REV:
2008 *datatype = GL_UNSIGNED_SHORT_4_4_4_4;
2009 *comps = 4;
2010 return;
2011
2012 case MESA_FORMAT_ARGB1555:
2013 case MESA_FORMAT_ARGB1555_REV:
2014 *datatype = GL_UNSIGNED_SHORT_1_5_5_5_REV;
2015 *comps = 4;
2016 return;
2017
2018 case MESA_FORMAT_ARGB2101010:
2019 *datatype = GL_UNSIGNED_INT_2_10_10_10_REV;
2020 *comps = 4;
2021 return;
2022
2023 case MESA_FORMAT_RGBA5551:
2024 *datatype = GL_UNSIGNED_SHORT_5_5_5_1;
2025 *comps = 4;
2026 return;
2027
2028 case MESA_FORMAT_AL44:
2029 *datatype = MESA_UNSIGNED_BYTE_4_4;
2030 *comps = 2;
2031 return;
2032
2033 case MESA_FORMAT_AL88:
2034 case MESA_FORMAT_AL88_REV:
2035 case MESA_FORMAT_RG88:
2036 case MESA_FORMAT_RG88_REV:
2037 *datatype = GL_UNSIGNED_BYTE;
2038 *comps = 2;
2039 return;
2040
2041 case MESA_FORMAT_AL1616:
2042 case MESA_FORMAT_AL1616_REV:
2043 case MESA_FORMAT_RG1616:
2044 case MESA_FORMAT_RG1616_REV:
2045 *datatype = GL_UNSIGNED_SHORT;
2046 *comps = 2;
2047 return;
2048
2049 case MESA_FORMAT_R16:
2050 case MESA_FORMAT_A16:
2051 case MESA_FORMAT_L16:
2052 case MESA_FORMAT_I16:
2053 *datatype = GL_UNSIGNED_SHORT;
2054 *comps = 1;
2055 return;
2056
2057 case MESA_FORMAT_RGB332:
2058 *datatype = GL_UNSIGNED_BYTE_3_3_2;
2059 *comps = 3;
2060 return;
2061
2062 case MESA_FORMAT_A8:
2063 case MESA_FORMAT_L8:
2064 case MESA_FORMAT_I8:
2065 case MESA_FORMAT_R8:
2066 case MESA_FORMAT_S8:
2067 *datatype = GL_UNSIGNED_BYTE;
2068 *comps = 1;
2069 return;
2070
2071 case MESA_FORMAT_YCBCR:
2072 case MESA_FORMAT_YCBCR_REV:
2073 *datatype = GL_UNSIGNED_SHORT;
2074 *comps = 2;
2075 return;
2076
2077 case MESA_FORMAT_Z24_S8:
2078 *datatype = GL_UNSIGNED_INT_24_8_MESA;
2079 *comps = 2;
2080 return;
2081
2082 case MESA_FORMAT_S8_Z24:
2083 *datatype = GL_UNSIGNED_INT_8_24_REV_MESA;
2084 *comps = 2;
2085 return;
2086
2087 case MESA_FORMAT_Z16:
2088 *datatype = GL_UNSIGNED_SHORT;
2089 *comps = 1;
2090 return;
2091
2092 case MESA_FORMAT_X8_Z24:
2093 *datatype = GL_UNSIGNED_INT;
2094 *comps = 1;
2095 return;
2096
2097 case MESA_FORMAT_Z24_X8:
2098 *datatype = GL_UNSIGNED_INT;
2099 *comps = 1;
2100 return;
2101
2102 case MESA_FORMAT_Z32:
2103 *datatype = GL_UNSIGNED_INT;
2104 *comps = 1;
2105 return;
2106
2107 case MESA_FORMAT_Z32_FLOAT:
2108 *datatype = GL_FLOAT;
2109 *comps = 1;
2110 return;
2111
2112 case MESA_FORMAT_Z32_FLOAT_X24S8:
2113 *datatype = GL_FLOAT_32_UNSIGNED_INT_24_8_REV;
2114 *comps = 1;
2115 return;
2116
2117 case MESA_FORMAT_DUDV8:
2118 *datatype = GL_BYTE;
2119 *comps = 2;
2120 return;
2121
2122 case MESA_FORMAT_SIGNED_R8:
2123 case MESA_FORMAT_SIGNED_A8:
2124 case MESA_FORMAT_SIGNED_L8:
2125 case MESA_FORMAT_SIGNED_I8:
2126 *datatype = GL_BYTE;
2127 *comps = 1;
2128 return;
2129 case MESA_FORMAT_SIGNED_RG88_REV:
2130 case MESA_FORMAT_SIGNED_AL88:
2131 *datatype = GL_BYTE;
2132 *comps = 2;
2133 return;
2134 case MESA_FORMAT_SIGNED_RGBA8888:
2135 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2136 case MESA_FORMAT_SIGNED_RGBX8888:
2137 *datatype = GL_BYTE;
2138 *comps = 4;
2139 return;
2140
2141 case MESA_FORMAT_RGBA_16:
2142 *datatype = GL_UNSIGNED_SHORT;
2143 *comps = 4;
2144 return;
2145
2146 case MESA_FORMAT_SIGNED_R16:
2147 case MESA_FORMAT_SIGNED_A16:
2148 case MESA_FORMAT_SIGNED_L16:
2149 case MESA_FORMAT_SIGNED_I16:
2150 *datatype = GL_SHORT;
2151 *comps = 1;
2152 return;
2153 case MESA_FORMAT_SIGNED_GR1616:
2154 case MESA_FORMAT_SIGNED_AL1616:
2155 *datatype = GL_SHORT;
2156 *comps = 2;
2157 return;
2158 case MESA_FORMAT_SIGNED_RGB_16:
2159 *datatype = GL_SHORT;
2160 *comps = 3;
2161 return;
2162 case MESA_FORMAT_SIGNED_RGBA_16:
2163 *datatype = GL_SHORT;
2164 *comps = 4;
2165 return;
2166
2167 #if FEATURE_EXT_texture_sRGB
2168 case MESA_FORMAT_SRGB8:
2169 *datatype = GL_UNSIGNED_BYTE;
2170 *comps = 3;
2171 return;
2172 case MESA_FORMAT_SRGBA8:
2173 case MESA_FORMAT_SARGB8:
2174 *datatype = GL_UNSIGNED_BYTE;
2175 *comps = 4;
2176 return;
2177 case MESA_FORMAT_SL8:
2178 *datatype = GL_UNSIGNED_BYTE;
2179 *comps = 1;
2180 return;
2181 case MESA_FORMAT_SLA8:
2182 *datatype = GL_UNSIGNED_BYTE;
2183 *comps = 2;
2184 return;
2185 #endif
2186
2187 #if FEATURE_texture_fxt1
2188 case MESA_FORMAT_RGB_FXT1:
2189 case MESA_FORMAT_RGBA_FXT1:
2190 #endif
2191 #if FEATURE_texture_s3tc
2192 case MESA_FORMAT_RGB_DXT1:
2193 case MESA_FORMAT_RGBA_DXT1:
2194 case MESA_FORMAT_RGBA_DXT3:
2195 case MESA_FORMAT_RGBA_DXT5:
2196 #if FEATURE_EXT_texture_sRGB
2197 case MESA_FORMAT_SRGB_DXT1:
2198 case MESA_FORMAT_SRGBA_DXT1:
2199 case MESA_FORMAT_SRGBA_DXT3:
2200 case MESA_FORMAT_SRGBA_DXT5:
2201 #endif
2202 #endif
2203 case MESA_FORMAT_RED_RGTC1:
2204 case MESA_FORMAT_SIGNED_RED_RGTC1:
2205 case MESA_FORMAT_RG_RGTC2:
2206 case MESA_FORMAT_SIGNED_RG_RGTC2:
2207 case MESA_FORMAT_L_LATC1:
2208 case MESA_FORMAT_SIGNED_L_LATC1:
2209 case MESA_FORMAT_LA_LATC2:
2210 case MESA_FORMAT_SIGNED_LA_LATC2:
2211 /* XXX generate error instead? */
2212 *datatype = GL_UNSIGNED_BYTE;
2213 *comps = 0;
2214 return;
2215
2216 case MESA_FORMAT_RGBA_FLOAT32:
2217 *datatype = GL_FLOAT;
2218 *comps = 4;
2219 return;
2220 case MESA_FORMAT_RGBA_FLOAT16:
2221 *datatype = GL_HALF_FLOAT_ARB;
2222 *comps = 4;
2223 return;
2224 case MESA_FORMAT_RGB_FLOAT32:
2225 *datatype = GL_FLOAT;
2226 *comps = 3;
2227 return;
2228 case MESA_FORMAT_RGB_FLOAT16:
2229 *datatype = GL_HALF_FLOAT_ARB;
2230 *comps = 3;
2231 return;
2232 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2233 case MESA_FORMAT_RG_FLOAT32:
2234 *datatype = GL_FLOAT;
2235 *comps = 2;
2236 return;
2237 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2238 case MESA_FORMAT_RG_FLOAT16:
2239 *datatype = GL_HALF_FLOAT_ARB;
2240 *comps = 2;
2241 return;
2242 case MESA_FORMAT_ALPHA_FLOAT32:
2243 case MESA_FORMAT_LUMINANCE_FLOAT32:
2244 case MESA_FORMAT_INTENSITY_FLOAT32:
2245 case MESA_FORMAT_R_FLOAT32:
2246 *datatype = GL_FLOAT;
2247 *comps = 1;
2248 return;
2249 case MESA_FORMAT_ALPHA_FLOAT16:
2250 case MESA_FORMAT_LUMINANCE_FLOAT16:
2251 case MESA_FORMAT_INTENSITY_FLOAT16:
2252 case MESA_FORMAT_R_FLOAT16:
2253 *datatype = GL_HALF_FLOAT_ARB;
2254 *comps = 1;
2255 return;
2256
2257 case MESA_FORMAT_ALPHA_UINT8:
2258 case MESA_FORMAT_LUMINANCE_UINT8:
2259 case MESA_FORMAT_INTENSITY_UINT8:
2260 *datatype = GL_UNSIGNED_BYTE;
2261 *comps = 1;
2262 return;
2263 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2264 *datatype = GL_UNSIGNED_BYTE;
2265 *comps = 2;
2266 return;
2267
2268 case MESA_FORMAT_ALPHA_UINT16:
2269 case MESA_FORMAT_LUMINANCE_UINT16:
2270 case MESA_FORMAT_INTENSITY_UINT16:
2271 *datatype = GL_UNSIGNED_SHORT;
2272 *comps = 1;
2273 return;
2274 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2275 *datatype = GL_UNSIGNED_SHORT;
2276 *comps = 2;
2277 return;
2278 case MESA_FORMAT_ALPHA_UINT32:
2279 case MESA_FORMAT_LUMINANCE_UINT32:
2280 case MESA_FORMAT_INTENSITY_UINT32:
2281 *datatype = GL_UNSIGNED_INT;
2282 *comps = 1;
2283 return;
2284 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2285 *datatype = GL_UNSIGNED_INT;
2286 *comps = 2;
2287 return;
2288 case MESA_FORMAT_ALPHA_INT8:
2289 case MESA_FORMAT_LUMINANCE_INT8:
2290 case MESA_FORMAT_INTENSITY_INT8:
2291 *datatype = GL_BYTE;
2292 *comps = 1;
2293 return;
2294 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2295 *datatype = GL_BYTE;
2296 *comps = 2;
2297 return;
2298
2299 case MESA_FORMAT_ALPHA_INT16:
2300 case MESA_FORMAT_LUMINANCE_INT16:
2301 case MESA_FORMAT_INTENSITY_INT16:
2302 *datatype = GL_SHORT;
2303 *comps = 1;
2304 return;
2305 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2306 *datatype = GL_SHORT;
2307 *comps = 2;
2308 return;
2309
2310 case MESA_FORMAT_ALPHA_INT32:
2311 case MESA_FORMAT_LUMINANCE_INT32:
2312 case MESA_FORMAT_INTENSITY_INT32:
2313 *datatype = GL_INT;
2314 *comps = 1;
2315 return;
2316 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2317 *datatype = GL_INT;
2318 *comps = 2;
2319 return;
2320
2321 case MESA_FORMAT_R_INT8:
2322 *datatype = GL_BYTE;
2323 *comps = 1;
2324 return;
2325 case MESA_FORMAT_RG_INT8:
2326 *datatype = GL_BYTE;
2327 *comps = 2;
2328 return;
2329 case MESA_FORMAT_RGB_INT8:
2330 *datatype = GL_BYTE;
2331 *comps = 3;
2332 return;
2333 case MESA_FORMAT_RGBA_INT8:
2334 *datatype = GL_BYTE;
2335 *comps = 4;
2336 return;
2337 case MESA_FORMAT_R_INT16:
2338 *datatype = GL_SHORT;
2339 *comps = 1;
2340 return;
2341 case MESA_FORMAT_RG_INT16:
2342 *datatype = GL_SHORT;
2343 *comps = 2;
2344 return;
2345 case MESA_FORMAT_RGB_INT16:
2346 *datatype = GL_SHORT;
2347 *comps = 3;
2348 return;
2349 case MESA_FORMAT_RGBA_INT16:
2350 *datatype = GL_SHORT;
2351 *comps = 4;
2352 return;
2353 case MESA_FORMAT_R_INT32:
2354 *datatype = GL_INT;
2355 *comps = 1;
2356 return;
2357 case MESA_FORMAT_RG_INT32:
2358 *datatype = GL_INT;
2359 *comps = 2;
2360 return;
2361 case MESA_FORMAT_RGB_INT32:
2362 *datatype = GL_INT;
2363 *comps = 3;
2364 return;
2365 case MESA_FORMAT_RGBA_INT32:
2366 *datatype = GL_INT;
2367 *comps = 4;
2368 return;
2369
2370 /**
2371 * \name Non-normalized unsigned integer formats.
2372 */
2373 case MESA_FORMAT_R_UINT8:
2374 *datatype = GL_UNSIGNED_BYTE;
2375 *comps = 1;
2376 return;
2377 case MESA_FORMAT_RG_UINT8:
2378 *datatype = GL_UNSIGNED_BYTE;
2379 *comps = 2;
2380 return;
2381 case MESA_FORMAT_RGB_UINT8:
2382 *datatype = GL_UNSIGNED_BYTE;
2383 *comps = 3;
2384 return;
2385 case MESA_FORMAT_RGBA_UINT8:
2386 *datatype = GL_UNSIGNED_BYTE;
2387 *comps = 4;
2388 return;
2389 case MESA_FORMAT_R_UINT16:
2390 *datatype = GL_UNSIGNED_SHORT;
2391 *comps = 1;
2392 return;
2393 case MESA_FORMAT_RG_UINT16:
2394 *datatype = GL_UNSIGNED_SHORT;
2395 *comps = 2;
2396 return;
2397 case MESA_FORMAT_RGB_UINT16:
2398 *datatype = GL_UNSIGNED_SHORT;
2399 *comps = 3;
2400 return;
2401 case MESA_FORMAT_RGBA_UINT16:
2402 *datatype = GL_UNSIGNED_SHORT;
2403 *comps = 4;
2404 return;
2405 case MESA_FORMAT_R_UINT32:
2406 *datatype = GL_UNSIGNED_INT;
2407 *comps = 1;
2408 return;
2409 case MESA_FORMAT_RG_UINT32:
2410 *datatype = GL_UNSIGNED_INT;
2411 *comps = 2;
2412 return;
2413 case MESA_FORMAT_RGB_UINT32:
2414 *datatype = GL_UNSIGNED_INT;
2415 *comps = 3;
2416 return;
2417 case MESA_FORMAT_RGBA_UINT32:
2418 *datatype = GL_UNSIGNED_INT;
2419 *comps = 4;
2420 return;
2421
2422 case MESA_FORMAT_RGB9_E5_FLOAT:
2423 *datatype = GL_UNSIGNED_INT_5_9_9_9_REV;
2424 *comps = 3;
2425 return;
2426
2427 case MESA_FORMAT_R11_G11_B10_FLOAT:
2428 *datatype = GL_UNSIGNED_INT_10F_11F_11F_REV;
2429 *comps = 3;
2430 return;
2431
2432 case MESA_FORMAT_COUNT:
2433 assert(0);
2434 return;
2435
2436 case MESA_FORMAT_NONE:
2437 /* For debug builds, warn if any formats are not handled */
2438 #ifdef DEBUG
2439 default:
2440 #endif
2441 _mesa_problem(NULL, "bad format %s in _mesa_format_to_type_and_comps",
2442 _mesa_get_format_name(format));
2443 *datatype = 0;
2444 *comps = 1;
2445 }
2446 }
2447
2448 /**
2449 * Returns a MESA_FORMAT describing pixels with the given format/type if
2450 * available, or MESA_FORMAT_NONE.
2451 *
2452 * If a format is returned, it should be suitable to memcpy
2453 * _mesa_get_format_bytes() at a time to move the pixel data.
2454 */
2455 GLboolean
2456 _mesa_format_matches_format_and_type(gl_format gl_format,
2457 GLenum format, GLenum type)
2458 {
2459 const GLboolean littleEndian = _mesa_little_endian();
2460
2461 /* Note: When reading a GL format/type combination, the format lists channel
2462 * assignments from most significant channel in the type to least
2463 * significant. A type with _REV indicates that the assignments are swapped,
2464 * so they are listed from least significant to most significant.
2465 *
2466 * For sanity, please keep this switch statement ordered the same as the enum
2467 * in formats.h.
2468 *
2469 * This matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2470 */
2471
2472 switch (gl_format) {
2473
2474 case MESA_FORMAT_NONE:
2475 case MESA_FORMAT_COUNT:
2476 return GL_FALSE;
2477
2478 case MESA_FORMAT_RGBA8888:
2479 return ((format == GL_RGBA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2480 (type == GL_UNSIGNED_BYTE && !littleEndian))) ||
2481 (format == GL_ABGR_EXT && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2482 (type == GL_UNSIGNED_BYTE && littleEndian))));
2483
2484 case MESA_FORMAT_RGBA8888_REV:
2485 return ((format == GL_RGBA && type == GL_UNSIGNED_INT_8_8_8_8_REV));
2486
2487 case MESA_FORMAT_ARGB8888:
2488 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8_REV ||
2489 (type == GL_UNSIGNED_BYTE && littleEndian))));
2490
2491 case MESA_FORMAT_ARGB8888_REV:
2492 return ((format == GL_BGRA && (type == GL_UNSIGNED_INT_8_8_8_8 ||
2493 (type == GL_UNSIGNED_BYTE && !littleEndian))));
2494
2495 case MESA_FORMAT_XRGB8888:
2496 case MESA_FORMAT_XRGB8888_REV:
2497 return GL_FALSE;
2498
2499 case MESA_FORMAT_RGB888:
2500 return format == GL_RGB && type == GL_UNSIGNED_BYTE && littleEndian;
2501
2502 case MESA_FORMAT_BGR888:
2503 return GL_FALSE;
2504
2505 case MESA_FORMAT_RGB565:
2506 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
2507 case MESA_FORMAT_RGB565_REV:
2508 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2509 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2510 * according to formats.h, so they can't be matched.
2511 */
2512 return GL_FALSE;
2513
2514 case MESA_FORMAT_ARGB4444:
2515 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_4_4_4_4_REV;
2516 case MESA_FORMAT_ARGB4444_REV:
2517 return GL_FALSE;
2518
2519 case MESA_FORMAT_RGBA5551:
2520 return format == GL_RGBA && type == GL_UNSIGNED_SHORT_5_5_5_1;
2521
2522 case MESA_FORMAT_ARGB1555:
2523 return format == GL_BGRA && type == GL_UNSIGNED_SHORT_1_5_5_5_REV;
2524 case MESA_FORMAT_ARGB1555_REV:
2525 return GL_FALSE;
2526
2527 case MESA_FORMAT_AL44:
2528 return GL_FALSE;
2529 case MESA_FORMAT_AL88:
2530 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2531 case MESA_FORMAT_AL88_REV:
2532 return GL_FALSE;
2533
2534 case MESA_FORMAT_AL1616:
2535 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2536 case MESA_FORMAT_AL1616_REV:
2537 return GL_FALSE;
2538
2539 case MESA_FORMAT_RGB332:
2540 return format == GL_RGB && type == GL_UNSIGNED_BYTE_3_3_2;
2541
2542 case MESA_FORMAT_A8:
2543 return format == GL_ALPHA && type == GL_UNSIGNED_BYTE;
2544 case MESA_FORMAT_A16:
2545 return format == GL_ALPHA && type == GL_UNSIGNED_SHORT && littleEndian;
2546 case MESA_FORMAT_L8:
2547 return format == GL_LUMINANCE && type == GL_UNSIGNED_BYTE;
2548 case MESA_FORMAT_L16:
2549 return format == GL_LUMINANCE && type == GL_UNSIGNED_SHORT && littleEndian;
2550 case MESA_FORMAT_I8:
2551 return format == GL_INTENSITY && type == GL_UNSIGNED_BYTE;
2552 case MESA_FORMAT_I16:
2553 return format == GL_INTENSITY && type == GL_UNSIGNED_SHORT && littleEndian;
2554
2555 case MESA_FORMAT_YCBCR:
2556 case MESA_FORMAT_YCBCR_REV:
2557 return GL_FALSE;
2558
2559 case MESA_FORMAT_R8:
2560 return format == GL_RED && type == GL_UNSIGNED_BYTE;
2561 case MESA_FORMAT_RG88:
2562 return format == GL_LUMINANCE_ALPHA && type == GL_UNSIGNED_BYTE && littleEndian;
2563 case MESA_FORMAT_RG88_REV:
2564 return GL_FALSE;
2565
2566 case MESA_FORMAT_R16:
2567 return format == GL_RED && type == GL_UNSIGNED_SHORT && littleEndian;
2568 case MESA_FORMAT_RG1616:
2569 return format == GL_RG && type == GL_UNSIGNED_SHORT && littleEndian;
2570 case MESA_FORMAT_RG1616_REV:
2571 return GL_FALSE;
2572
2573 case MESA_FORMAT_ARGB2101010:
2574 return format == GL_BGRA && type == GL_UNSIGNED_INT_2_10_10_10_REV;
2575
2576 case MESA_FORMAT_Z24_S8:
2577 return format == GL_DEPTH_STENCIL && type == GL_UNSIGNED_INT_24_8;
2578 case MESA_FORMAT_Z24_X8:
2579 case MESA_FORMAT_S8_Z24:
2580 return GL_FALSE;
2581
2582 case MESA_FORMAT_Z16:
2583 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_SHORT;
2584
2585 case MESA_FORMAT_X8_Z24:
2586 return GL_FALSE;
2587
2588 case MESA_FORMAT_Z32:
2589 return format == GL_DEPTH_COMPONENT && type == GL_UNSIGNED_INT;
2590
2591 case MESA_FORMAT_S8:
2592 return GL_FALSE;
2593
2594 case MESA_FORMAT_SRGB8:
2595 case MESA_FORMAT_SRGBA8:
2596 case MESA_FORMAT_SARGB8:
2597 case MESA_FORMAT_SL8:
2598 case MESA_FORMAT_SLA8:
2599 case MESA_FORMAT_SRGB_DXT1:
2600 case MESA_FORMAT_SRGBA_DXT1:
2601 case MESA_FORMAT_SRGBA_DXT3:
2602 case MESA_FORMAT_SRGBA_DXT5:
2603 return GL_FALSE;
2604
2605 case MESA_FORMAT_RGB_FXT1:
2606 case MESA_FORMAT_RGBA_FXT1:
2607 case MESA_FORMAT_RGB_DXT1:
2608 case MESA_FORMAT_RGBA_DXT1:
2609 case MESA_FORMAT_RGBA_DXT3:
2610 case MESA_FORMAT_RGBA_DXT5:
2611 return GL_FALSE;
2612
2613 case MESA_FORMAT_RGBA_FLOAT32:
2614 return format == GL_RGBA && type == GL_FLOAT;
2615 case MESA_FORMAT_RGBA_FLOAT16:
2616 return format == GL_RGBA && type == GL_HALF_FLOAT;
2617
2618 case MESA_FORMAT_RGB_FLOAT32:
2619 return format == GL_RGB && type == GL_FLOAT;
2620 case MESA_FORMAT_RGB_FLOAT16:
2621 return format == GL_RGB && type == GL_HALF_FLOAT;
2622
2623 case MESA_FORMAT_ALPHA_FLOAT32:
2624 return format == GL_ALPHA && type == GL_FLOAT;
2625 case MESA_FORMAT_ALPHA_FLOAT16:
2626 return format == GL_ALPHA && type == GL_HALF_FLOAT;
2627
2628 case MESA_FORMAT_LUMINANCE_FLOAT32:
2629 return format == GL_LUMINANCE && type == GL_FLOAT;
2630 case MESA_FORMAT_LUMINANCE_FLOAT16:
2631 return format == GL_LUMINANCE && type == GL_HALF_FLOAT;
2632
2633 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
2634 return format == GL_LUMINANCE_ALPHA && type == GL_FLOAT;
2635 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
2636 return format == GL_LUMINANCE_ALPHA && type == GL_HALF_FLOAT;
2637
2638 case MESA_FORMAT_INTENSITY_FLOAT32:
2639 return format == GL_INTENSITY && type == GL_FLOAT;
2640 case MESA_FORMAT_INTENSITY_FLOAT16:
2641 return format == GL_INTENSITY && type == GL_HALF_FLOAT;
2642
2643 case MESA_FORMAT_R_FLOAT32:
2644 return format == GL_RED && type == GL_FLOAT;
2645 case MESA_FORMAT_R_FLOAT16:
2646 return format == GL_RED && type == GL_HALF_FLOAT;
2647
2648 case MESA_FORMAT_RG_FLOAT32:
2649 return format == GL_RG && type == GL_FLOAT;
2650 case MESA_FORMAT_RG_FLOAT16:
2651 return format == GL_RG && type == GL_HALF_FLOAT;
2652
2653 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2654 case MESA_FORMAT_ALPHA_UINT8:
2655 case MESA_FORMAT_ALPHA_UINT16:
2656 case MESA_FORMAT_ALPHA_UINT32:
2657 case MESA_FORMAT_ALPHA_INT8:
2658 case MESA_FORMAT_ALPHA_INT16:
2659 case MESA_FORMAT_ALPHA_INT32:
2660 return GL_FALSE;
2661
2662 case MESA_FORMAT_INTENSITY_UINT8:
2663 case MESA_FORMAT_INTENSITY_UINT16:
2664 case MESA_FORMAT_INTENSITY_UINT32:
2665 case MESA_FORMAT_INTENSITY_INT8:
2666 case MESA_FORMAT_INTENSITY_INT16:
2667 case MESA_FORMAT_INTENSITY_INT32:
2668 return GL_FALSE;
2669
2670 case MESA_FORMAT_LUMINANCE_UINT8:
2671 case MESA_FORMAT_LUMINANCE_UINT16:
2672 case MESA_FORMAT_LUMINANCE_UINT32:
2673 case MESA_FORMAT_LUMINANCE_INT8:
2674 case MESA_FORMAT_LUMINANCE_INT16:
2675 case MESA_FORMAT_LUMINANCE_INT32:
2676 return GL_FALSE;
2677
2678 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
2679 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
2680 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
2681 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
2682 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
2683 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
2684 return GL_FALSE;
2685
2686 case MESA_FORMAT_R_INT8:
2687 case MESA_FORMAT_RG_INT8:
2688 case MESA_FORMAT_RGB_INT8:
2689 case MESA_FORMAT_RGBA_INT8:
2690 case MESA_FORMAT_R_INT16:
2691 case MESA_FORMAT_RG_INT16:
2692 case MESA_FORMAT_RGB_INT16:
2693 case MESA_FORMAT_RGBA_INT16:
2694 case MESA_FORMAT_R_INT32:
2695 case MESA_FORMAT_RG_INT32:
2696 case MESA_FORMAT_RGB_INT32:
2697 case MESA_FORMAT_RGBA_INT32:
2698 return GL_FALSE;
2699
2700 case MESA_FORMAT_R_UINT8:
2701 case MESA_FORMAT_RG_UINT8:
2702 case MESA_FORMAT_RGB_UINT8:
2703 case MESA_FORMAT_RGBA_UINT8:
2704 case MESA_FORMAT_R_UINT16:
2705 case MESA_FORMAT_RG_UINT16:
2706 case MESA_FORMAT_RGB_UINT16:
2707 case MESA_FORMAT_RGBA_UINT16:
2708 case MESA_FORMAT_R_UINT32:
2709 case MESA_FORMAT_RG_UINT32:
2710 case MESA_FORMAT_RGB_UINT32:
2711 case MESA_FORMAT_RGBA_UINT32:
2712 return GL_FALSE;
2713
2714 case MESA_FORMAT_DUDV8:
2715 case MESA_FORMAT_SIGNED_R8:
2716 case MESA_FORMAT_SIGNED_RG88_REV:
2717 case MESA_FORMAT_SIGNED_RGBX8888:
2718 case MESA_FORMAT_SIGNED_RGBA8888:
2719 case MESA_FORMAT_SIGNED_RGBA8888_REV:
2720 case MESA_FORMAT_SIGNED_R16:
2721 case MESA_FORMAT_SIGNED_GR1616:
2722 case MESA_FORMAT_SIGNED_RGB_16:
2723 case MESA_FORMAT_SIGNED_RGBA_16:
2724 case MESA_FORMAT_RGBA_16:
2725 /* FINISHME: SNORM */
2726 return GL_FALSE;
2727
2728 case MESA_FORMAT_RED_RGTC1:
2729 case MESA_FORMAT_SIGNED_RED_RGTC1:
2730 case MESA_FORMAT_RG_RGTC2:
2731 case MESA_FORMAT_SIGNED_RG_RGTC2:
2732 return GL_FALSE;
2733
2734 case MESA_FORMAT_L_LATC1:
2735 case MESA_FORMAT_SIGNED_L_LATC1:
2736 case MESA_FORMAT_LA_LATC2:
2737 case MESA_FORMAT_SIGNED_LA_LATC2:
2738 return GL_FALSE;
2739
2740 case MESA_FORMAT_SIGNED_A8:
2741 case MESA_FORMAT_SIGNED_L8:
2742 case MESA_FORMAT_SIGNED_AL88:
2743 case MESA_FORMAT_SIGNED_I8:
2744 case MESA_FORMAT_SIGNED_A16:
2745 case MESA_FORMAT_SIGNED_L16:
2746 case MESA_FORMAT_SIGNED_AL1616:
2747 case MESA_FORMAT_SIGNED_I16:
2748 /* FINISHME: SNORM */
2749 return GL_FALSE;
2750
2751 case MESA_FORMAT_RGB9_E5_FLOAT:
2752 return format == GL_RGB && type == GL_UNSIGNED_INT_5_9_9_9_REV;
2753 case MESA_FORMAT_R11_G11_B10_FLOAT:
2754 return format == GL_RGB && type == GL_UNSIGNED_INT_10F_11F_11F_REV;
2755
2756 case MESA_FORMAT_Z32_FLOAT:
2757 return format == GL_DEPTH_COMPONENT && type == GL_FLOAT;
2758
2759 case MESA_FORMAT_Z32_FLOAT_X24S8:
2760 return GL_FALSE;
2761 }
2762
2763 return GL_FALSE;
2764 }