2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
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:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
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.
29 #include "mfeatures.h"
34 * Information about texture formats.
40 /** text name for debugging */
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.
51 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
52 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
60 GLubyte LuminanceBits
;
61 GLubyte IntensityBits
;
67 * To describe compressed formats. If not compressed, Width=Height=1.
69 GLubyte BlockWidth
, BlockHeight
;
70 GLubyte BytesPerBlock
;
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.
79 static struct gl_format_info format_info
[MESA_FORMAT_COUNT
] =
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
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 */
373 GL_UNSIGNED_NORMALIZED
,
382 GL_UNSIGNED_NORMALIZED
,
391 GL_UNSIGNED_NORMALIZED
,
400 GL_UNSIGNED_NORMALIZED
,
407 "MESA_FORMAT_RG1616",
409 GL_UNSIGNED_NORMALIZED
,
415 MESA_FORMAT_RG1616_REV
,
416 "MESA_FORMAT_RG1616_REV",
418 GL_UNSIGNED_NORMALIZED
,
424 MESA_FORMAT_ARGB2101010
,
425 "MESA_FORMAT_ARGB2101010",
427 GL_UNSIGNED_NORMALIZED
,
433 MESA_FORMAT_Z24_S8
, /* Name */
434 "MESA_FORMAT_Z24_S8", /* 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 */
442 MESA_FORMAT_S8_Z24
, /* Name */
443 "MESA_FORMAT_S8_Z24", /* StrName */
444 GL_DEPTH_STENCIL
, /* BaseFormat */
445 GL_UNSIGNED_NORMALIZED
, /* DataType */
446 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
447 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
448 1, 1, 4 /* BlockWidth/Height,Bytes */
451 MESA_FORMAT_Z16
, /* Name */
452 "MESA_FORMAT_Z16", /* StrName */
453 GL_DEPTH_COMPONENT
, /* BaseFormat */
454 GL_UNSIGNED_NORMALIZED
, /* DataType */
455 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
456 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
457 1, 1, 2 /* BlockWidth/Height,Bytes */
460 MESA_FORMAT_X8_Z24
, /* Name */
461 "MESA_FORMAT_X8_Z24", /* 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 */
469 MESA_FORMAT_Z24_X8
, /* Name */
470 "MESA_FORMAT_Z24_X8", /* StrName */
471 GL_DEPTH_COMPONENT
, /* BaseFormat */
472 GL_UNSIGNED_NORMALIZED
, /* DataType */
473 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
474 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
475 1, 1, 4 /* BlockWidth/Height,Bytes */
478 MESA_FORMAT_Z32
, /* Name */
479 "MESA_FORMAT_Z32", /* StrName */
480 GL_DEPTH_COMPONENT
, /* BaseFormat */
481 GL_UNSIGNED_NORMALIZED
, /* DataType */
482 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
483 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
484 1, 1, 4 /* BlockWidth/Height,Bytes */
487 MESA_FORMAT_S8
, /* Name */
488 "MESA_FORMAT_S8", /* StrName */
489 GL_STENCIL_INDEX
, /* BaseFormat */
490 GL_UNSIGNED_INT
, /* DataType */
491 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
492 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
493 1, 1, 1 /* BlockWidth/Height,Bytes */
499 GL_UNSIGNED_NORMALIZED
,
506 "MESA_FORMAT_SRGBA8",
508 GL_UNSIGNED_NORMALIZED
,
515 "MESA_FORMAT_SARGB8",
517 GL_UNSIGNED_NORMALIZED
,
526 GL_UNSIGNED_NORMALIZED
,
535 GL_UNSIGNED_NORMALIZED
,
541 MESA_FORMAT_SRGB_DXT1
, /* Name */
542 "MESA_FORMAT_SRGB_DXT1", /* StrName */
543 GL_RGB
, /* BaseFormat */
544 GL_UNSIGNED_NORMALIZED
, /* DataType */
545 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
546 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
547 4, 4, 8 /* 8 bytes per 4x4 block */
550 MESA_FORMAT_SRGBA_DXT1
,
551 "MESA_FORMAT_SRGBA_DXT1",
553 GL_UNSIGNED_NORMALIZED
,
556 4, 4, 8 /* 8 bytes per 4x4 block */
559 MESA_FORMAT_SRGBA_DXT3
,
560 "MESA_FORMAT_SRGBA_DXT3",
562 GL_UNSIGNED_NORMALIZED
,
565 4, 4, 16 /* 16 bytes per 4x4 block */
568 MESA_FORMAT_SRGBA_DXT5
,
569 "MESA_FORMAT_SRGBA_DXT5",
571 GL_UNSIGNED_NORMALIZED
,
574 4, 4, 16 /* 16 bytes per 4x4 block */
578 MESA_FORMAT_RGB_FXT1
,
579 "MESA_FORMAT_RGB_FXT1",
581 GL_UNSIGNED_NORMALIZED
,
582 4, 4, 4, 0, /* approx Red/Green/BlueBits */
584 8, 4, 16 /* 16 bytes per 8x4 block */
587 MESA_FORMAT_RGBA_FXT1
,
588 "MESA_FORMAT_RGBA_FXT1",
590 GL_UNSIGNED_NORMALIZED
,
591 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
593 8, 4, 16 /* 16 bytes per 8x4 block */
597 MESA_FORMAT_RGB_DXT1
, /* Name */
598 "MESA_FORMAT_RGB_DXT1", /* StrName */
599 GL_RGB
, /* BaseFormat */
600 GL_UNSIGNED_NORMALIZED
, /* DataType */
601 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
602 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
603 4, 4, 8 /* 8 bytes per 4x4 block */
606 MESA_FORMAT_RGBA_DXT1
,
607 "MESA_FORMAT_RGBA_DXT1",
609 GL_UNSIGNED_NORMALIZED
,
612 4, 4, 8 /* 8 bytes per 4x4 block */
615 MESA_FORMAT_RGBA_DXT3
,
616 "MESA_FORMAT_RGBA_DXT3",
618 GL_UNSIGNED_NORMALIZED
,
621 4, 4, 16 /* 16 bytes per 4x4 block */
624 MESA_FORMAT_RGBA_DXT5
,
625 "MESA_FORMAT_RGBA_DXT5",
627 GL_UNSIGNED_NORMALIZED
,
630 4, 4, 16 /* 16 bytes per 4x4 block */
633 MESA_FORMAT_RGBA_FLOAT32
,
634 "MESA_FORMAT_RGBA_FLOAT32",
642 MESA_FORMAT_RGBA_FLOAT16
,
643 "MESA_FORMAT_RGBA_FLOAT16",
651 MESA_FORMAT_RGB_FLOAT32
,
652 "MESA_FORMAT_RGB_FLOAT32",
660 MESA_FORMAT_RGB_FLOAT16
,
661 "MESA_FORMAT_RGB_FLOAT16",
669 MESA_FORMAT_ALPHA_FLOAT32
,
670 "MESA_FORMAT_ALPHA_FLOAT32",
678 MESA_FORMAT_ALPHA_FLOAT16
,
679 "MESA_FORMAT_ALPHA_FLOAT16",
687 MESA_FORMAT_LUMINANCE_FLOAT32
,
688 "MESA_FORMAT_LUMINANCE_FLOAT32",
696 MESA_FORMAT_LUMINANCE_FLOAT16
,
697 "MESA_FORMAT_LUMINANCE_FLOAT16",
705 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
,
706 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
714 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
,
715 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
723 MESA_FORMAT_INTENSITY_FLOAT32
,
724 "MESA_FORMAT_INTENSITY_FLOAT32",
732 MESA_FORMAT_INTENSITY_FLOAT16
,
733 "MESA_FORMAT_INTENSITY_FLOAT16",
741 MESA_FORMAT_R_FLOAT32
,
742 "MESA_FORMAT_R_FLOAT32",
750 MESA_FORMAT_R_FLOAT16
,
751 "MESA_FORMAT_R_FLOAT16",
759 MESA_FORMAT_RG_FLOAT32
,
760 "MESA_FORMAT_RG_FLOAT32",
768 MESA_FORMAT_RG_FLOAT16
,
769 "MESA_FORMAT_RG_FLOAT16",
777 /* unnormalized signed int formats */
778 /* unnormalized unsigned int formats */
780 MESA_FORMAT_ALPHA_UINT8
,
781 "MESA_FORMAT_ALPHA_UINT8",
789 MESA_FORMAT_ALPHA_UINT16
,
790 "MESA_FORMAT_ALPHA_UINT16",
798 MESA_FORMAT_ALPHA_UINT32
,
799 "MESA_FORMAT_ALPHA_UINT32",
807 MESA_FORMAT_ALPHA_INT8
,
808 "MESA_FORMAT_ALPHA_INT8",
816 MESA_FORMAT_ALPHA_INT16
,
817 "MESA_FORMAT_ALPHA_INT16",
825 MESA_FORMAT_ALPHA_INT32
,
826 "MESA_FORMAT_ALPHA_INT32",
834 MESA_FORMAT_INTENSITY_UINT8
,
835 "MESA_FORMAT_INTENSITY_UINT8",
843 MESA_FORMAT_INTENSITY_UINT16
,
844 "MESA_FORMAT_INTENSITY_UINT16",
852 MESA_FORMAT_INTENSITY_UINT32
,
853 "MESA_FORMAT_INTENSITY_UINT32",
861 MESA_FORMAT_INTENSITY_INT8
,
862 "MESA_FORMAT_INTENSITY_INT8",
870 MESA_FORMAT_INTENSITY_INT16
,
871 "MESA_FORMAT_INTENSITY_INT16",
879 MESA_FORMAT_INTENSITY_INT32
,
880 "MESA_FORMAT_INTENSITY_INT32",
888 MESA_FORMAT_LUMINANCE_UINT8
,
889 "MESA_FORMAT_LUMINANCE_UINT8",
897 MESA_FORMAT_LUMINANCE_UINT16
,
898 "MESA_FORMAT_LUMINANCE_UINT16",
906 MESA_FORMAT_LUMINANCE_UINT32
,
907 "MESA_FORMAT_LUMINANCE_UINT32",
915 MESA_FORMAT_LUMINANCE_INT8
,
916 "MESA_FORMAT_LUMINANCE_INT8",
924 MESA_FORMAT_LUMINANCE_INT16
,
925 "MESA_FORMAT_LUMINANCE_INT16",
933 MESA_FORMAT_LUMINANCE_INT32
,
934 "MESA_FORMAT_LUMINANCE_INT32",
942 MESA_FORMAT_LUMINANCE_ALPHA_UINT8
,
943 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
951 MESA_FORMAT_LUMINANCE_ALPHA_UINT16
,
952 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
960 MESA_FORMAT_LUMINANCE_ALPHA_UINT32
,
961 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
969 MESA_FORMAT_LUMINANCE_ALPHA_INT8
,
970 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
978 MESA_FORMAT_LUMINANCE_ALPHA_INT16
,
979 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
987 MESA_FORMAT_LUMINANCE_ALPHA_INT32
,
988 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
998 "MESA_FORMAT_R_INT8",
1006 MESA_FORMAT_RG_INT8
,
1007 "MESA_FORMAT_RG_INT8",
1015 MESA_FORMAT_RGB_INT8
,
1016 "MESA_FORMAT_RGB_INT8",
1024 MESA_FORMAT_RGBA_INT8
,
1025 "MESA_FORMAT_RGBA_INT8",
1033 MESA_FORMAT_R_INT16
,
1034 "MESA_FORMAT_R_INT16",
1042 MESA_FORMAT_RG_INT16
,
1043 "MESA_FORMAT_RG_INT16",
1051 MESA_FORMAT_RGB_INT16
,
1052 "MESA_FORMAT_RGB_INT16",
1060 MESA_FORMAT_RGBA_INT16
,
1061 "MESA_FORMAT_RGBA_INT16",
1069 MESA_FORMAT_R_INT32
,
1070 "MESA_FORMAT_R_INT32",
1078 MESA_FORMAT_RG_INT32
,
1079 "MESA_FORMAT_RG_INT32",
1087 MESA_FORMAT_RGB_INT32
,
1088 "MESA_FORMAT_RGB_INT32",
1096 MESA_FORMAT_RGBA_INT32
,
1097 "MESA_FORMAT_RGBA_INT32",
1105 MESA_FORMAT_R_UINT8
,
1106 "MESA_FORMAT_R_UINT8",
1114 MESA_FORMAT_RG_UINT8
,
1115 "MESA_FORMAT_RG_UINT8",
1123 MESA_FORMAT_RGB_UINT8
,
1124 "MESA_FORMAT_RGB_UINT8",
1132 MESA_FORMAT_RGBA_UINT8
,
1133 "MESA_FORMAT_RGBA_UINT8",
1141 MESA_FORMAT_R_UINT16
,
1142 "MESA_FORMAT_R_UINT16",
1150 MESA_FORMAT_RG_UINT16
,
1151 "MESA_FORMAT_RG_UINT16",
1159 MESA_FORMAT_RGB_UINT16
,
1160 "MESA_FORMAT_RGB_UINT16",
1168 MESA_FORMAT_RGBA_UINT16
,
1169 "MESA_FORMAT_RGBA_UINT16",
1177 MESA_FORMAT_R_UINT32
,
1178 "MESA_FORMAT_R_UINT32",
1186 MESA_FORMAT_RG_UINT32
,
1187 "MESA_FORMAT_RG_UINT32",
1195 MESA_FORMAT_RGB_UINT32
,
1196 "MESA_FORMAT_RGB_UINT32",
1204 MESA_FORMAT_RGBA_UINT32
,
1205 "MESA_FORMAT_RGBA_UINT32",
1216 "MESA_FORMAT_DUDV8",
1218 GL_SIGNED_NORMALIZED
,
1224 /* Signed 8 bits / channel */
1226 MESA_FORMAT_SIGNED_R8
, /* Name */
1227 "MESA_FORMAT_SIGNED_R8", /* StrName */
1228 GL_RED
, /* BaseFormat */
1229 GL_SIGNED_NORMALIZED
, /* DataType */
1230 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1231 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1232 1, 1, 1 /* BlockWidth/Height,Bytes */
1235 MESA_FORMAT_SIGNED_RG88_REV
,
1236 "MESA_FORMAT_SIGNED_RG88_REV",
1238 GL_SIGNED_NORMALIZED
,
1244 MESA_FORMAT_SIGNED_RGBX8888
,
1245 "MESA_FORMAT_SIGNED_RGBX8888",
1247 GL_SIGNED_NORMALIZED
,
1250 1, 1, 4 /* 4 bpp, but no alpha */
1253 MESA_FORMAT_SIGNED_RGBA8888
,
1254 "MESA_FORMAT_SIGNED_RGBA8888",
1256 GL_SIGNED_NORMALIZED
,
1262 MESA_FORMAT_SIGNED_RGBA8888_REV
,
1263 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1265 GL_SIGNED_NORMALIZED
,
1271 /* Signed 16 bits / channel */
1273 MESA_FORMAT_SIGNED_R16
,
1274 "MESA_FORMAT_SIGNED_R16",
1276 GL_SIGNED_NORMALIZED
,
1282 MESA_FORMAT_SIGNED_GR1616
,
1283 "MESA_FORMAT_SIGNED_GR1616",
1285 GL_SIGNED_NORMALIZED
,
1291 MESA_FORMAT_SIGNED_RGB_16
,
1292 "MESA_FORMAT_SIGNED_RGB_16",
1294 GL_SIGNED_NORMALIZED
,
1300 MESA_FORMAT_SIGNED_RGBA_16
,
1301 "MESA_FORMAT_SIGNED_RGBA_16",
1303 GL_SIGNED_NORMALIZED
,
1309 MESA_FORMAT_RGBA_16
,
1310 "MESA_FORMAT_RGBA_16",
1312 GL_UNSIGNED_NORMALIZED
,
1318 MESA_FORMAT_RED_RGTC1
,
1319 "MESA_FORMAT_RED_RGTC1",
1321 GL_UNSIGNED_NORMALIZED
,
1324 4, 4, 8 /* 8 bytes per 4x4 block */
1327 MESA_FORMAT_SIGNED_RED_RGTC1
,
1328 "MESA_FORMAT_SIGNED_RED_RGTC1",
1330 GL_SIGNED_NORMALIZED
,
1333 4, 4, 8 /* 8 bytes per 4x4 block */
1336 MESA_FORMAT_RG_RGTC2
,
1337 "MESA_FORMAT_RG_RGTC2",
1339 GL_UNSIGNED_NORMALIZED
,
1342 4, 4, 16 /* 16 bytes per 4x4 block */
1345 MESA_FORMAT_SIGNED_RG_RGTC2
,
1346 "MESA_FORMAT_SIGNED_RG_RGTC2",
1348 GL_SIGNED_NORMALIZED
,
1351 4, 4, 16 /* 16 bytes per 4x4 block */
1354 MESA_FORMAT_L_LATC1
,
1355 "MESA_FORMAT_L_LATC1",
1357 GL_UNSIGNED_NORMALIZED
,
1360 4, 4, 8 /* 8 bytes per 4x4 block */
1363 MESA_FORMAT_SIGNED_L_LATC1
,
1364 "MESA_FORMAT_SIGNED_L_LATC1",
1366 GL_SIGNED_NORMALIZED
,
1369 4, 4, 8 /* 8 bytes per 4x4 block */
1372 MESA_FORMAT_LA_LATC2
,
1373 "MESA_FORMAT_LA_LATC2",
1375 GL_UNSIGNED_NORMALIZED
,
1378 4, 4, 16 /* 16 bytes per 4x4 block */
1381 MESA_FORMAT_SIGNED_LA_LATC2
,
1382 "MESA_FORMAT_SIGNED_LA_LATC2",
1384 GL_SIGNED_NORMALIZED
,
1387 4, 4, 16 /* 16 bytes per 4x4 block */
1391 MESA_FORMAT_ETC1_RGB8
,
1392 "MESA_FORMAT_ETC1_RGB8",
1394 GL_UNSIGNED_NORMALIZED
,
1397 4, 4, 8 /* 8 bytes per 4x4 block */
1400 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1402 MESA_FORMAT_SIGNED_A8
,
1403 "MESA_FORMAT_SIGNED_A8",
1405 GL_SIGNED_NORMALIZED
,
1411 MESA_FORMAT_SIGNED_L8
,
1412 "MESA_FORMAT_SIGNED_L8",
1414 GL_SIGNED_NORMALIZED
,
1420 MESA_FORMAT_SIGNED_AL88
,
1421 "MESA_FORMAT_SIGNED_AL88",
1423 GL_SIGNED_NORMALIZED
,
1429 MESA_FORMAT_SIGNED_I8
,
1430 "MESA_FORMAT_SIGNED_I8",
1432 GL_SIGNED_NORMALIZED
,
1438 MESA_FORMAT_SIGNED_A16
,
1439 "MESA_FORMAT_SIGNED_A16",
1441 GL_SIGNED_NORMALIZED
,
1447 MESA_FORMAT_SIGNED_L16
,
1448 "MESA_FORMAT_SIGNED_L16",
1450 GL_SIGNED_NORMALIZED
,
1456 MESA_FORMAT_SIGNED_AL1616
,
1457 "MESA_FORMAT_SIGNED_AL1616",
1459 GL_SIGNED_NORMALIZED
,
1465 MESA_FORMAT_SIGNED_I16
,
1466 "MESA_FORMAT_SIGNED_I16",
1468 GL_SIGNED_NORMALIZED
,
1474 MESA_FORMAT_RGB9_E5_FLOAT
,
1475 "MESA_FORMAT_RGB9_E5",
1483 MESA_FORMAT_R11_G11_B10_FLOAT
,
1484 "MESA_FORMAT_R11_G11_B10_FLOAT",
1491 /* ARB_depth_buffer_float */
1493 MESA_FORMAT_Z32_FLOAT
, /* Name */
1494 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1495 GL_DEPTH_COMPONENT
, /* BaseFormat */
1496 GL_FLOAT
, /* DataType */
1497 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1498 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1499 1, 1, 4 /* BlockWidth/Height,Bytes */
1502 MESA_FORMAT_Z32_FLOAT_X24S8
, /* Name */
1503 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1504 GL_DEPTH_STENCIL
, /* BaseFormat */
1505 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1506 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1508 GL_FLOAT
, /* DataType */
1509 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1510 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1511 1, 1, 8 /* BlockWidth/Height,Bytes */
1514 MESA_FORMAT_ARGB2101010_UINT
,
1515 "MESA_FORMAT_ARGB2101010_UINT",
1526 static const struct gl_format_info
*
1527 _mesa_get_format_info(gl_format format
)
1529 const struct gl_format_info
*info
= &format_info
[format
];
1530 assert(info
->Name
== format
);
1535 /** Return string name of format (for debugging) */
1537 _mesa_get_format_name(gl_format format
)
1539 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1540 return info
->StrName
;
1546 * Return bytes needed to store a block of pixels in the given format.
1547 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1548 * a block may be 4x4 or 8x4, etc.
1550 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1553 _mesa_get_format_bytes(gl_format format
)
1555 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1556 ASSERT(info
->BytesPerBlock
);
1557 ASSERT(info
->BytesPerBlock
<= MAX_PIXEL_BYTES
||
1558 _mesa_is_format_compressed(format
));
1559 return info
->BytesPerBlock
;
1564 * Return bits per component for the given format.
1565 * \param format one of MESA_FORMAT_x
1566 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1569 _mesa_get_format_bits(gl_format format
, GLenum pname
)
1571 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1575 case GL_TEXTURE_RED_SIZE
:
1576 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1577 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1578 return info
->RedBits
;
1580 case GL_TEXTURE_GREEN_SIZE
:
1581 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1582 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1583 return info
->GreenBits
;
1585 case GL_TEXTURE_BLUE_SIZE
:
1586 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1587 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1588 return info
->BlueBits
;
1590 case GL_TEXTURE_ALPHA_SIZE
:
1591 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1592 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1593 return info
->AlphaBits
;
1594 case GL_TEXTURE_INTENSITY_SIZE
:
1595 return info
->IntensityBits
;
1596 case GL_TEXTURE_LUMINANCE_SIZE
:
1597 return info
->LuminanceBits
;
1599 return info
->IndexBits
;
1601 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1602 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1603 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1604 return info
->DepthBits
;
1605 case GL_STENCIL_BITS
:
1606 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1607 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1608 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1609 return info
->StencilBits
;
1611 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
1618 _mesa_get_format_max_bits(gl_format format
)
1620 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1621 GLuint max
= MAX2(info
->RedBits
, info
->GreenBits
);
1622 max
= MAX2(max
, info
->BlueBits
);
1623 max
= MAX2(max
, info
->AlphaBits
);
1624 max
= MAX2(max
, info
->LuminanceBits
);
1625 max
= MAX2(max
, info
->IntensityBits
);
1626 max
= MAX2(max
, info
->DepthBits
);
1627 max
= MAX2(max
, info
->StencilBits
);
1633 * Return the data type (or more specifically, the data representation)
1634 * for the given format.
1635 * The return value will be one of:
1636 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1637 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1638 * GL_UNSIGNED_INT = an ordinary unsigned integer
1639 * GL_INT = an ordinary signed integer
1640 * GL_FLOAT = an ordinary float
1643 _mesa_get_format_datatype(gl_format format
)
1645 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1646 return info
->DataType
;
1651 * Return the basic format for the given type. The result will be one of
1652 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1653 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1656 _mesa_get_format_base_format(gl_format format
)
1658 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1659 return info
->BaseFormat
;
1664 * Return the block size (in pixels) for the given format. Normally
1665 * the block size is 1x1. But compressed formats will have block sizes
1666 * of 4x4 or 8x4 pixels, etc.
1667 * \param bw returns block width in pixels
1668 * \param bh returns block height in pixels
1671 _mesa_get_format_block_size(gl_format format
, GLuint
*bw
, GLuint
*bh
)
1673 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1674 *bw
= info
->BlockWidth
;
1675 *bh
= info
->BlockHeight
;
1679 /** Is the given format a compressed format? */
1681 _mesa_is_format_compressed(gl_format format
)
1683 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1684 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
1689 * Determine if the given format represents a packed depth/stencil buffer.
1692 _mesa_is_format_packed_depth_stencil(gl_format format
)
1694 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1696 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
1701 * Is the given format a signed/unsigned integer color format?
1704 _mesa_is_format_integer_color(gl_format format
)
1706 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1707 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
1708 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
1709 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
1710 info
->BaseFormat
!= GL_STENCIL_INDEX
;
1715 * Return color encoding for given format.
1716 * \return GL_LINEAR or GL_SRGB
1719 _mesa_get_format_color_encoding(gl_format format
)
1721 /* XXX this info should be encoded in gl_format_info */
1723 case MESA_FORMAT_SRGB8
:
1724 case MESA_FORMAT_SRGBA8
:
1725 case MESA_FORMAT_SARGB8
:
1726 case MESA_FORMAT_SL8
:
1727 case MESA_FORMAT_SLA8
:
1728 case MESA_FORMAT_SRGB_DXT1
:
1729 case MESA_FORMAT_SRGBA_DXT1
:
1730 case MESA_FORMAT_SRGBA_DXT3
:
1731 case MESA_FORMAT_SRGBA_DXT5
:
1740 * For an sRGB format, return the corresponding linear color space format.
1741 * For non-sRGB formats, return the format as-is.
1744 _mesa_get_srgb_format_linear(gl_format format
)
1747 case MESA_FORMAT_SRGB8
:
1748 format
= MESA_FORMAT_RGB888
;
1750 case MESA_FORMAT_SRGBA8
:
1751 format
= MESA_FORMAT_RGBA8888
;
1753 case MESA_FORMAT_SARGB8
:
1754 format
= MESA_FORMAT_ARGB8888
;
1756 case MESA_FORMAT_SL8
:
1757 format
= MESA_FORMAT_L8
;
1759 case MESA_FORMAT_SLA8
:
1760 format
= MESA_FORMAT_AL88
;
1762 case MESA_FORMAT_SRGB_DXT1
:
1763 format
= MESA_FORMAT_RGB_DXT1
;
1765 case MESA_FORMAT_SRGBA_DXT1
:
1766 format
= MESA_FORMAT_RGBA_DXT1
;
1768 case MESA_FORMAT_SRGBA_DXT3
:
1769 format
= MESA_FORMAT_RGBA_DXT3
;
1771 case MESA_FORMAT_SRGBA_DXT5
:
1772 format
= MESA_FORMAT_RGBA_DXT5
;
1782 * If the given format is a compressed format, return a corresponding
1783 * uncompressed format.
1786 _mesa_get_uncompressed_format(gl_format format
)
1789 case MESA_FORMAT_RGB_FXT1
:
1790 return MESA_FORMAT_RGB888
;
1791 case MESA_FORMAT_RGBA_FXT1
:
1792 return MESA_FORMAT_RGBA8888
;
1793 case MESA_FORMAT_RGB_DXT1
:
1794 case MESA_FORMAT_SRGB_DXT1
:
1795 return MESA_FORMAT_RGB888
;
1796 case MESA_FORMAT_RGBA_DXT1
:
1797 case MESA_FORMAT_SRGBA_DXT1
:
1798 return MESA_FORMAT_RGBA8888
;
1799 case MESA_FORMAT_RGBA_DXT3
:
1800 case MESA_FORMAT_SRGBA_DXT3
:
1801 return MESA_FORMAT_RGBA8888
;
1802 case MESA_FORMAT_RGBA_DXT5
:
1803 case MESA_FORMAT_SRGBA_DXT5
:
1804 return MESA_FORMAT_RGBA8888
;
1805 case MESA_FORMAT_RED_RGTC1
:
1806 return MESA_FORMAT_R8
;
1807 case MESA_FORMAT_SIGNED_RED_RGTC1
:
1808 return MESA_FORMAT_SIGNED_R8
;
1809 case MESA_FORMAT_RG_RGTC2
:
1810 return MESA_FORMAT_GR88
;
1811 case MESA_FORMAT_SIGNED_RG_RGTC2
:
1812 return MESA_FORMAT_SIGNED_RG88_REV
;
1813 case MESA_FORMAT_L_LATC1
:
1814 return MESA_FORMAT_L8
;
1815 case MESA_FORMAT_SIGNED_L_LATC1
:
1816 return MESA_FORMAT_SIGNED_L8
;
1817 case MESA_FORMAT_LA_LATC2
:
1818 return MESA_FORMAT_AL88
;
1819 case MESA_FORMAT_SIGNED_LA_LATC2
:
1820 return MESA_FORMAT_SIGNED_AL88
;
1821 case MESA_FORMAT_ETC1_RGB8
:
1822 return MESA_FORMAT_RGB888
;
1825 assert(!_mesa_is_format_compressed(format
));
1833 _mesa_format_num_components(gl_format format
)
1835 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1836 return ((info
->RedBits
> 0) +
1837 (info
->GreenBits
> 0) +
1838 (info
->BlueBits
> 0) +
1839 (info
->AlphaBits
> 0) +
1840 (info
->LuminanceBits
> 0) +
1841 (info
->IntensityBits
> 0) +
1842 (info
->DepthBits
> 0) +
1843 (info
->StencilBits
> 0));
1848 * Return number of bytes needed to store an image of the given size
1849 * in the given format.
1852 _mesa_format_image_size(gl_format format
, GLsizei width
,
1853 GLsizei height
, GLsizei depth
)
1855 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1856 /* Strictly speaking, a conditional isn't needed here */
1857 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1858 /* compressed format (2D only for now) */
1859 const GLuint bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1860 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1861 const GLuint hblocks
= (height
+ bh
- 1) / bh
;
1862 const GLuint sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1867 /* non-compressed */
1868 const GLuint sz
= width
* height
* depth
* info
->BytesPerBlock
;
1875 * Same as _mesa_format_image_size() but returns a 64-bit value to
1876 * accomodate very large textures.
1879 _mesa_format_image_size64(gl_format format
, GLsizei width
,
1880 GLsizei height
, GLsizei depth
)
1882 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1883 /* Strictly speaking, a conditional isn't needed here */
1884 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1885 /* compressed format (2D only for now) */
1886 const uint64_t bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1887 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
1888 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
1889 const uint64_t sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1894 /* non-compressed */
1895 const uint64_t sz
= ((uint64_t) width
*
1898 info
->BytesPerBlock
);
1906 _mesa_format_row_stride(gl_format format
, GLsizei width
)
1908 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1909 /* Strictly speaking, a conditional isn't needed here */
1910 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1911 /* compressed format */
1912 const GLuint bw
= info
->BlockWidth
;
1913 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1914 const GLint stride
= wblocks
* info
->BytesPerBlock
;
1918 const GLint stride
= width
* info
->BytesPerBlock
;
1925 * Debug/test: check that all formats are handled in the
1926 * _mesa_format_to_type_and_comps() function. When new pixel formats
1927 * are added to Mesa, that function needs to be updated.
1928 * This is a no-op after the first call.
1931 check_format_to_type_and_comps(void)
1935 for (f
= MESA_FORMAT_NONE
+ 1; f
< MESA_FORMAT_COUNT
; f
++) {
1936 GLenum datatype
= 0;
1938 /* This function will emit a problem/warning if the format is
1941 _mesa_format_to_type_and_comps(f
, &datatype
, &comps
);
1947 * Do sanity checking of the format info table.
1950 _mesa_test_formats(void)
1954 STATIC_ASSERT(Elements(format_info
) == MESA_FORMAT_COUNT
);
1956 for (i
= 0; i
< MESA_FORMAT_COUNT
; i
++) {
1957 const struct gl_format_info
*info
= _mesa_get_format_info(i
);
1960 assert(info
->Name
== i
);
1962 if (info
->Name
== MESA_FORMAT_NONE
)
1965 if (info
->BlockWidth
== 1 && info
->BlockHeight
== 1) {
1966 if (info
->RedBits
> 0) {
1967 GLuint t
= info
->RedBits
+ info
->GreenBits
1968 + info
->BlueBits
+ info
->AlphaBits
;
1969 assert(t
/ 8 <= info
->BytesPerBlock
);
1974 assert(info
->DataType
== GL_UNSIGNED_NORMALIZED
||
1975 info
->DataType
== GL_SIGNED_NORMALIZED
||
1976 info
->DataType
== GL_UNSIGNED_INT
||
1977 info
->DataType
== GL_INT
||
1978 info
->DataType
== GL_FLOAT
||
1979 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1980 info
->DataType
== GL_NONE
);
1982 if (info
->BaseFormat
== GL_RGB
) {
1983 assert(info
->RedBits
> 0);
1984 assert(info
->GreenBits
> 0);
1985 assert(info
->BlueBits
> 0);
1986 assert(info
->AlphaBits
== 0);
1987 assert(info
->LuminanceBits
== 0);
1988 assert(info
->IntensityBits
== 0);
1990 else if (info
->BaseFormat
== GL_RGBA
) {
1991 assert(info
->RedBits
> 0);
1992 assert(info
->GreenBits
> 0);
1993 assert(info
->BlueBits
> 0);
1994 assert(info
->AlphaBits
> 0);
1995 assert(info
->LuminanceBits
== 0);
1996 assert(info
->IntensityBits
== 0);
1998 else if (info
->BaseFormat
== GL_RG
) {
1999 assert(info
->RedBits
> 0);
2000 assert(info
->GreenBits
> 0);
2001 assert(info
->BlueBits
== 0);
2002 assert(info
->AlphaBits
== 0);
2003 assert(info
->LuminanceBits
== 0);
2004 assert(info
->IntensityBits
== 0);
2006 else if (info
->BaseFormat
== GL_RED
) {
2007 assert(info
->RedBits
> 0);
2008 assert(info
->GreenBits
== 0);
2009 assert(info
->BlueBits
== 0);
2010 assert(info
->AlphaBits
== 0);
2011 assert(info
->LuminanceBits
== 0);
2012 assert(info
->IntensityBits
== 0);
2014 else if (info
->BaseFormat
== GL_LUMINANCE
) {
2015 assert(info
->RedBits
== 0);
2016 assert(info
->GreenBits
== 0);
2017 assert(info
->BlueBits
== 0);
2018 assert(info
->AlphaBits
== 0);
2019 assert(info
->LuminanceBits
> 0);
2020 assert(info
->IntensityBits
== 0);
2022 else if (info
->BaseFormat
== GL_INTENSITY
) {
2023 assert(info
->RedBits
== 0);
2024 assert(info
->GreenBits
== 0);
2025 assert(info
->BlueBits
== 0);
2026 assert(info
->AlphaBits
== 0);
2027 assert(info
->LuminanceBits
== 0);
2028 assert(info
->IntensityBits
> 0);
2032 check_format_to_type_and_comps();
2038 * Return datatype and number of components per texel for the given gl_format.
2039 * Only used for mipmap generation code.
2042 _mesa_format_to_type_and_comps(gl_format format
,
2043 GLenum
*datatype
, GLuint
*comps
)
2046 case MESA_FORMAT_RGBA8888
:
2047 case MESA_FORMAT_RGBA8888_REV
:
2048 case MESA_FORMAT_ARGB8888
:
2049 case MESA_FORMAT_ARGB8888_REV
:
2050 case MESA_FORMAT_RGBX8888
:
2051 case MESA_FORMAT_RGBX8888_REV
:
2052 case MESA_FORMAT_XRGB8888
:
2053 case MESA_FORMAT_XRGB8888_REV
:
2054 *datatype
= GL_UNSIGNED_BYTE
;
2057 case MESA_FORMAT_RGB888
:
2058 case MESA_FORMAT_BGR888
:
2059 *datatype
= GL_UNSIGNED_BYTE
;
2062 case MESA_FORMAT_RGB565
:
2063 case MESA_FORMAT_RGB565_REV
:
2064 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
2068 case MESA_FORMAT_ARGB4444
:
2069 case MESA_FORMAT_ARGB4444_REV
:
2070 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
2074 case MESA_FORMAT_ARGB1555
:
2075 case MESA_FORMAT_ARGB1555_REV
:
2076 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2080 case MESA_FORMAT_ARGB2101010
:
2081 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2085 case MESA_FORMAT_RGBA5551
:
2086 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
2090 case MESA_FORMAT_AL44
:
2091 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
2095 case MESA_FORMAT_AL88
:
2096 case MESA_FORMAT_AL88_REV
:
2097 case MESA_FORMAT_GR88
:
2098 case MESA_FORMAT_RG88
:
2099 *datatype
= GL_UNSIGNED_BYTE
;
2103 case MESA_FORMAT_AL1616
:
2104 case MESA_FORMAT_AL1616_REV
:
2105 case MESA_FORMAT_RG1616
:
2106 case MESA_FORMAT_RG1616_REV
:
2107 *datatype
= GL_UNSIGNED_SHORT
;
2111 case MESA_FORMAT_R16
:
2112 case MESA_FORMAT_A16
:
2113 case MESA_FORMAT_L16
:
2114 case MESA_FORMAT_I16
:
2115 *datatype
= GL_UNSIGNED_SHORT
;
2119 case MESA_FORMAT_RGB332
:
2120 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
2124 case MESA_FORMAT_A8
:
2125 case MESA_FORMAT_L8
:
2126 case MESA_FORMAT_I8
:
2127 case MESA_FORMAT_R8
:
2128 case MESA_FORMAT_S8
:
2129 *datatype
= GL_UNSIGNED_BYTE
;
2133 case MESA_FORMAT_YCBCR
:
2134 case MESA_FORMAT_YCBCR_REV
:
2135 *datatype
= GL_UNSIGNED_SHORT
;
2139 case MESA_FORMAT_Z24_S8
:
2140 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
2144 case MESA_FORMAT_S8_Z24
:
2145 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
2149 case MESA_FORMAT_Z16
:
2150 *datatype
= GL_UNSIGNED_SHORT
;
2154 case MESA_FORMAT_X8_Z24
:
2155 *datatype
= GL_UNSIGNED_INT
;
2159 case MESA_FORMAT_Z24_X8
:
2160 *datatype
= GL_UNSIGNED_INT
;
2164 case MESA_FORMAT_Z32
:
2165 *datatype
= GL_UNSIGNED_INT
;
2169 case MESA_FORMAT_Z32_FLOAT
:
2170 *datatype
= GL_FLOAT
;
2174 case MESA_FORMAT_Z32_FLOAT_X24S8
:
2175 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
2179 case MESA_FORMAT_DUDV8
:
2180 *datatype
= GL_BYTE
;
2184 case MESA_FORMAT_SIGNED_R8
:
2185 case MESA_FORMAT_SIGNED_A8
:
2186 case MESA_FORMAT_SIGNED_L8
:
2187 case MESA_FORMAT_SIGNED_I8
:
2188 *datatype
= GL_BYTE
;
2191 case MESA_FORMAT_SIGNED_RG88_REV
:
2192 case MESA_FORMAT_SIGNED_AL88
:
2193 *datatype
= GL_BYTE
;
2196 case MESA_FORMAT_SIGNED_RGBA8888
:
2197 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2198 case MESA_FORMAT_SIGNED_RGBX8888
:
2199 *datatype
= GL_BYTE
;
2203 case MESA_FORMAT_RGBA_16
:
2204 *datatype
= GL_UNSIGNED_SHORT
;
2208 case MESA_FORMAT_SIGNED_R16
:
2209 case MESA_FORMAT_SIGNED_A16
:
2210 case MESA_FORMAT_SIGNED_L16
:
2211 case MESA_FORMAT_SIGNED_I16
:
2212 *datatype
= GL_SHORT
;
2215 case MESA_FORMAT_SIGNED_GR1616
:
2216 case MESA_FORMAT_SIGNED_AL1616
:
2217 *datatype
= GL_SHORT
;
2220 case MESA_FORMAT_SIGNED_RGB_16
:
2221 *datatype
= GL_SHORT
;
2224 case MESA_FORMAT_SIGNED_RGBA_16
:
2225 *datatype
= GL_SHORT
;
2229 #if FEATURE_EXT_texture_sRGB
2230 case MESA_FORMAT_SRGB8
:
2231 *datatype
= GL_UNSIGNED_BYTE
;
2234 case MESA_FORMAT_SRGBA8
:
2235 case MESA_FORMAT_SARGB8
:
2236 *datatype
= GL_UNSIGNED_BYTE
;
2239 case MESA_FORMAT_SL8
:
2240 *datatype
= GL_UNSIGNED_BYTE
;
2243 case MESA_FORMAT_SLA8
:
2244 *datatype
= GL_UNSIGNED_BYTE
;
2249 #if FEATURE_texture_fxt1
2250 case MESA_FORMAT_RGB_FXT1
:
2251 case MESA_FORMAT_RGBA_FXT1
:
2253 #if FEATURE_texture_s3tc
2254 case MESA_FORMAT_RGB_DXT1
:
2255 case MESA_FORMAT_RGBA_DXT1
:
2256 case MESA_FORMAT_RGBA_DXT3
:
2257 case MESA_FORMAT_RGBA_DXT5
:
2258 #if FEATURE_EXT_texture_sRGB
2259 case MESA_FORMAT_SRGB_DXT1
:
2260 case MESA_FORMAT_SRGBA_DXT1
:
2261 case MESA_FORMAT_SRGBA_DXT3
:
2262 case MESA_FORMAT_SRGBA_DXT5
:
2265 case MESA_FORMAT_RED_RGTC1
:
2266 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2267 case MESA_FORMAT_RG_RGTC2
:
2268 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2269 case MESA_FORMAT_L_LATC1
:
2270 case MESA_FORMAT_SIGNED_L_LATC1
:
2271 case MESA_FORMAT_LA_LATC2
:
2272 case MESA_FORMAT_SIGNED_LA_LATC2
:
2273 case MESA_FORMAT_ETC1_RGB8
:
2274 /* XXX generate error instead? */
2275 *datatype
= GL_UNSIGNED_BYTE
;
2279 case MESA_FORMAT_RGBA_FLOAT32
:
2280 *datatype
= GL_FLOAT
;
2283 case MESA_FORMAT_RGBA_FLOAT16
:
2284 *datatype
= GL_HALF_FLOAT_ARB
;
2287 case MESA_FORMAT_RGB_FLOAT32
:
2288 *datatype
= GL_FLOAT
;
2291 case MESA_FORMAT_RGB_FLOAT16
:
2292 *datatype
= GL_HALF_FLOAT_ARB
;
2295 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2296 case MESA_FORMAT_RG_FLOAT32
:
2297 *datatype
= GL_FLOAT
;
2300 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2301 case MESA_FORMAT_RG_FLOAT16
:
2302 *datatype
= GL_HALF_FLOAT_ARB
;
2305 case MESA_FORMAT_ALPHA_FLOAT32
:
2306 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2307 case MESA_FORMAT_INTENSITY_FLOAT32
:
2308 case MESA_FORMAT_R_FLOAT32
:
2309 *datatype
= GL_FLOAT
;
2312 case MESA_FORMAT_ALPHA_FLOAT16
:
2313 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2314 case MESA_FORMAT_INTENSITY_FLOAT16
:
2315 case MESA_FORMAT_R_FLOAT16
:
2316 *datatype
= GL_HALF_FLOAT_ARB
;
2320 case MESA_FORMAT_ALPHA_UINT8
:
2321 case MESA_FORMAT_LUMINANCE_UINT8
:
2322 case MESA_FORMAT_INTENSITY_UINT8
:
2323 *datatype
= GL_UNSIGNED_BYTE
;
2326 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2327 *datatype
= GL_UNSIGNED_BYTE
;
2331 case MESA_FORMAT_ALPHA_UINT16
:
2332 case MESA_FORMAT_LUMINANCE_UINT16
:
2333 case MESA_FORMAT_INTENSITY_UINT16
:
2334 *datatype
= GL_UNSIGNED_SHORT
;
2337 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2338 *datatype
= GL_UNSIGNED_SHORT
;
2341 case MESA_FORMAT_ALPHA_UINT32
:
2342 case MESA_FORMAT_LUMINANCE_UINT32
:
2343 case MESA_FORMAT_INTENSITY_UINT32
:
2344 *datatype
= GL_UNSIGNED_INT
;
2347 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2348 *datatype
= GL_UNSIGNED_INT
;
2351 case MESA_FORMAT_ALPHA_INT8
:
2352 case MESA_FORMAT_LUMINANCE_INT8
:
2353 case MESA_FORMAT_INTENSITY_INT8
:
2354 *datatype
= GL_BYTE
;
2357 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2358 *datatype
= GL_BYTE
;
2362 case MESA_FORMAT_ALPHA_INT16
:
2363 case MESA_FORMAT_LUMINANCE_INT16
:
2364 case MESA_FORMAT_INTENSITY_INT16
:
2365 *datatype
= GL_SHORT
;
2368 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2369 *datatype
= GL_SHORT
;
2373 case MESA_FORMAT_ALPHA_INT32
:
2374 case MESA_FORMAT_LUMINANCE_INT32
:
2375 case MESA_FORMAT_INTENSITY_INT32
:
2379 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2384 case MESA_FORMAT_R_INT8
:
2385 *datatype
= GL_BYTE
;
2388 case MESA_FORMAT_RG_INT8
:
2389 *datatype
= GL_BYTE
;
2392 case MESA_FORMAT_RGB_INT8
:
2393 *datatype
= GL_BYTE
;
2396 case MESA_FORMAT_RGBA_INT8
:
2397 *datatype
= GL_BYTE
;
2400 case MESA_FORMAT_R_INT16
:
2401 *datatype
= GL_SHORT
;
2404 case MESA_FORMAT_RG_INT16
:
2405 *datatype
= GL_SHORT
;
2408 case MESA_FORMAT_RGB_INT16
:
2409 *datatype
= GL_SHORT
;
2412 case MESA_FORMAT_RGBA_INT16
:
2413 *datatype
= GL_SHORT
;
2416 case MESA_FORMAT_R_INT32
:
2420 case MESA_FORMAT_RG_INT32
:
2424 case MESA_FORMAT_RGB_INT32
:
2428 case MESA_FORMAT_RGBA_INT32
:
2434 * \name Non-normalized unsigned integer formats.
2436 case MESA_FORMAT_R_UINT8
:
2437 *datatype
= GL_UNSIGNED_BYTE
;
2440 case MESA_FORMAT_RG_UINT8
:
2441 *datatype
= GL_UNSIGNED_BYTE
;
2444 case MESA_FORMAT_RGB_UINT8
:
2445 *datatype
= GL_UNSIGNED_BYTE
;
2448 case MESA_FORMAT_RGBA_UINT8
:
2449 *datatype
= GL_UNSIGNED_BYTE
;
2452 case MESA_FORMAT_R_UINT16
:
2453 *datatype
= GL_UNSIGNED_SHORT
;
2456 case MESA_FORMAT_RG_UINT16
:
2457 *datatype
= GL_UNSIGNED_SHORT
;
2460 case MESA_FORMAT_RGB_UINT16
:
2461 *datatype
= GL_UNSIGNED_SHORT
;
2464 case MESA_FORMAT_RGBA_UINT16
:
2465 *datatype
= GL_UNSIGNED_SHORT
;
2468 case MESA_FORMAT_R_UINT32
:
2469 *datatype
= GL_UNSIGNED_INT
;
2472 case MESA_FORMAT_RG_UINT32
:
2473 *datatype
= GL_UNSIGNED_INT
;
2476 case MESA_FORMAT_RGB_UINT32
:
2477 *datatype
= GL_UNSIGNED_INT
;
2480 case MESA_FORMAT_RGBA_UINT32
:
2481 *datatype
= GL_UNSIGNED_INT
;
2485 case MESA_FORMAT_RGB9_E5_FLOAT
:
2486 *datatype
= GL_UNSIGNED_INT_5_9_9_9_REV
;
2490 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2491 *datatype
= GL_UNSIGNED_INT_10F_11F_11F_REV
;
2495 case MESA_FORMAT_ARGB2101010_UINT
:
2496 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2500 case MESA_FORMAT_COUNT
:
2504 case MESA_FORMAT_NONE
:
2505 /* For debug builds, warn if any formats are not handled */
2509 _mesa_problem(NULL
, "bad format %s in _mesa_format_to_type_and_comps",
2510 _mesa_get_format_name(format
));
2517 * Check if a gl_format exactly matches a GL formaat/type combination
2518 * such that we can use memcpy() from one to the other.
2520 * Note: this matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2522 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2525 _mesa_format_matches_format_and_type(gl_format gl_format
,
2526 GLenum format
, GLenum type
)
2528 const GLboolean littleEndian
= _mesa_little_endian();
2530 /* Note: When reading a GL format/type combination, the format lists channel
2531 * assignments from most significant channel in the type to least
2532 * significant. A type with _REV indicates that the assignments are
2533 * swapped, so they are listed from least significant to most significant.
2535 * For sanity, please keep this switch statement ordered the same as the
2536 * enums in formats.h.
2539 switch (gl_format
) {
2541 case MESA_FORMAT_NONE
:
2542 case MESA_FORMAT_COUNT
:
2545 case MESA_FORMAT_RGBA8888
:
2546 return ((format
== GL_RGBA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2547 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))) ||
2548 (format
== GL_ABGR_EXT
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2549 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2551 case MESA_FORMAT_RGBA8888_REV
:
2552 return ((format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
));
2554 case MESA_FORMAT_ARGB8888
:
2555 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2556 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2558 case MESA_FORMAT_ARGB8888_REV
:
2559 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2560 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))));
2562 case MESA_FORMAT_RGBX8888
:
2563 case MESA_FORMAT_RGBX8888_REV
:
2566 case MESA_FORMAT_XRGB8888
:
2567 case MESA_FORMAT_XRGB8888_REV
:
2570 case MESA_FORMAT_RGB888
:
2571 return format
== GL_BGR
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2573 case MESA_FORMAT_BGR888
:
2574 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2576 case MESA_FORMAT_RGB565
:
2577 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
;
2578 case MESA_FORMAT_RGB565_REV
:
2579 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2580 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2581 * according to formats.h, so they can't be matched.
2585 case MESA_FORMAT_ARGB4444
:
2586 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
;
2587 case MESA_FORMAT_ARGB4444_REV
:
2590 case MESA_FORMAT_RGBA5551
:
2591 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
;
2593 case MESA_FORMAT_ARGB1555
:
2594 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2595 case MESA_FORMAT_ARGB1555_REV
:
2598 case MESA_FORMAT_AL44
:
2600 case MESA_FORMAT_AL88
:
2601 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2602 case MESA_FORMAT_AL88_REV
:
2605 case MESA_FORMAT_AL1616
:
2606 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2607 case MESA_FORMAT_AL1616_REV
:
2610 case MESA_FORMAT_RGB332
:
2611 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
2613 case MESA_FORMAT_A8
:
2614 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
2615 case MESA_FORMAT_A16
:
2616 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2617 case MESA_FORMAT_L8
:
2618 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
2619 case MESA_FORMAT_L16
:
2620 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2621 case MESA_FORMAT_I8
:
2622 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_BYTE
;
2623 case MESA_FORMAT_I16
:
2624 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2626 case MESA_FORMAT_YCBCR
:
2627 case MESA_FORMAT_YCBCR_REV
:
2630 case MESA_FORMAT_R8
:
2631 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
2632 case MESA_FORMAT_GR88
:
2633 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2634 case MESA_FORMAT_RG88
:
2637 case MESA_FORMAT_R16
:
2638 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2639 case MESA_FORMAT_RG1616
:
2640 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2641 case MESA_FORMAT_RG1616_REV
:
2644 case MESA_FORMAT_ARGB2101010
:
2645 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
;
2647 case MESA_FORMAT_Z24_S8
:
2648 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
;
2649 case MESA_FORMAT_Z24_X8
:
2650 case MESA_FORMAT_S8_Z24
:
2653 case MESA_FORMAT_Z16
:
2654 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
;
2656 case MESA_FORMAT_X8_Z24
:
2659 case MESA_FORMAT_Z32
:
2660 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
;
2662 case MESA_FORMAT_S8
:
2665 case MESA_FORMAT_SRGB8
:
2666 case MESA_FORMAT_SRGBA8
:
2667 case MESA_FORMAT_SARGB8
:
2668 case MESA_FORMAT_SL8
:
2669 case MESA_FORMAT_SLA8
:
2670 case MESA_FORMAT_SRGB_DXT1
:
2671 case MESA_FORMAT_SRGBA_DXT1
:
2672 case MESA_FORMAT_SRGBA_DXT3
:
2673 case MESA_FORMAT_SRGBA_DXT5
:
2676 case MESA_FORMAT_RGB_FXT1
:
2677 case MESA_FORMAT_RGBA_FXT1
:
2678 case MESA_FORMAT_RGB_DXT1
:
2679 case MESA_FORMAT_RGBA_DXT1
:
2680 case MESA_FORMAT_RGBA_DXT3
:
2681 case MESA_FORMAT_RGBA_DXT5
:
2684 case MESA_FORMAT_RGBA_FLOAT32
:
2685 return format
== GL_RGBA
&& type
== GL_FLOAT
;
2686 case MESA_FORMAT_RGBA_FLOAT16
:
2687 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
;
2689 case MESA_FORMAT_RGB_FLOAT32
:
2690 return format
== GL_RGB
&& type
== GL_FLOAT
;
2691 case MESA_FORMAT_RGB_FLOAT16
:
2692 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
;
2694 case MESA_FORMAT_ALPHA_FLOAT32
:
2695 return format
== GL_ALPHA
&& type
== GL_FLOAT
;
2696 case MESA_FORMAT_ALPHA_FLOAT16
:
2697 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
;
2699 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2700 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
;
2701 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2702 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
;
2704 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2705 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
;
2706 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2707 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
;
2709 case MESA_FORMAT_INTENSITY_FLOAT32
:
2710 return format
== GL_INTENSITY
&& type
== GL_FLOAT
;
2711 case MESA_FORMAT_INTENSITY_FLOAT16
:
2712 return format
== GL_INTENSITY
&& type
== GL_HALF_FLOAT
;
2714 case MESA_FORMAT_R_FLOAT32
:
2715 return format
== GL_RED
&& type
== GL_FLOAT
;
2716 case MESA_FORMAT_R_FLOAT16
:
2717 return format
== GL_RED
&& type
== GL_HALF_FLOAT
;
2719 case MESA_FORMAT_RG_FLOAT32
:
2720 return format
== GL_RG
&& type
== GL_FLOAT
;
2721 case MESA_FORMAT_RG_FLOAT16
:
2722 return format
== GL_RG
&& type
== GL_HALF_FLOAT
;
2724 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2725 case MESA_FORMAT_ALPHA_UINT8
:
2726 case MESA_FORMAT_ALPHA_UINT16
:
2727 case MESA_FORMAT_ALPHA_UINT32
:
2728 case MESA_FORMAT_ALPHA_INT8
:
2729 case MESA_FORMAT_ALPHA_INT16
:
2730 case MESA_FORMAT_ALPHA_INT32
:
2733 case MESA_FORMAT_INTENSITY_UINT8
:
2734 case MESA_FORMAT_INTENSITY_UINT16
:
2735 case MESA_FORMAT_INTENSITY_UINT32
:
2736 case MESA_FORMAT_INTENSITY_INT8
:
2737 case MESA_FORMAT_INTENSITY_INT16
:
2738 case MESA_FORMAT_INTENSITY_INT32
:
2741 case MESA_FORMAT_LUMINANCE_UINT8
:
2742 case MESA_FORMAT_LUMINANCE_UINT16
:
2743 case MESA_FORMAT_LUMINANCE_UINT32
:
2744 case MESA_FORMAT_LUMINANCE_INT8
:
2745 case MESA_FORMAT_LUMINANCE_INT16
:
2746 case MESA_FORMAT_LUMINANCE_INT32
:
2749 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2750 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2751 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2752 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2753 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2754 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2757 case MESA_FORMAT_R_INT8
:
2758 case MESA_FORMAT_RG_INT8
:
2759 case MESA_FORMAT_RGB_INT8
:
2760 case MESA_FORMAT_RGBA_INT8
:
2761 case MESA_FORMAT_R_INT16
:
2762 case MESA_FORMAT_RG_INT16
:
2763 case MESA_FORMAT_RGB_INT16
:
2764 case MESA_FORMAT_RGBA_INT16
:
2765 case MESA_FORMAT_R_INT32
:
2766 case MESA_FORMAT_RG_INT32
:
2767 case MESA_FORMAT_RGB_INT32
:
2768 case MESA_FORMAT_RGBA_INT32
:
2771 case MESA_FORMAT_R_UINT8
:
2772 case MESA_FORMAT_RG_UINT8
:
2773 case MESA_FORMAT_RGB_UINT8
:
2774 case MESA_FORMAT_RGBA_UINT8
:
2775 case MESA_FORMAT_R_UINT16
:
2776 case MESA_FORMAT_RG_UINT16
:
2777 case MESA_FORMAT_RGB_UINT16
:
2778 case MESA_FORMAT_RGBA_UINT16
:
2779 case MESA_FORMAT_R_UINT32
:
2780 case MESA_FORMAT_RG_UINT32
:
2781 case MESA_FORMAT_RGB_UINT32
:
2782 case MESA_FORMAT_RGBA_UINT32
:
2785 case MESA_FORMAT_DUDV8
:
2786 case MESA_FORMAT_SIGNED_R8
:
2787 case MESA_FORMAT_SIGNED_RG88_REV
:
2788 case MESA_FORMAT_SIGNED_RGBX8888
:
2789 case MESA_FORMAT_SIGNED_RGBA8888
:
2790 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2791 case MESA_FORMAT_SIGNED_R16
:
2792 case MESA_FORMAT_SIGNED_GR1616
:
2793 case MESA_FORMAT_SIGNED_RGB_16
:
2794 case MESA_FORMAT_SIGNED_RGBA_16
:
2795 case MESA_FORMAT_RGBA_16
:
2796 /* FINISHME: SNORM */
2799 case MESA_FORMAT_RED_RGTC1
:
2800 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2801 case MESA_FORMAT_RG_RGTC2
:
2802 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2805 case MESA_FORMAT_L_LATC1
:
2806 case MESA_FORMAT_SIGNED_L_LATC1
:
2807 case MESA_FORMAT_LA_LATC2
:
2808 case MESA_FORMAT_SIGNED_LA_LATC2
:
2811 case MESA_FORMAT_ETC1_RGB8
:
2814 case MESA_FORMAT_SIGNED_A8
:
2815 case MESA_FORMAT_SIGNED_L8
:
2816 case MESA_FORMAT_SIGNED_AL88
:
2817 case MESA_FORMAT_SIGNED_I8
:
2818 case MESA_FORMAT_SIGNED_A16
:
2819 case MESA_FORMAT_SIGNED_L16
:
2820 case MESA_FORMAT_SIGNED_AL1616
:
2821 case MESA_FORMAT_SIGNED_I16
:
2822 /* FINISHME: SNORM */
2825 case MESA_FORMAT_ARGB2101010_UINT
:
2828 case MESA_FORMAT_RGB9_E5_FLOAT
:
2829 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_5_9_9_9_REV
;
2830 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2831 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_10F_11F_11F_REV
;
2833 case MESA_FORMAT_Z32_FLOAT
:
2834 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
;
2836 case MESA_FORMAT_Z32_FLOAT_X24S8
: