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