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 */
1390 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1392 MESA_FORMAT_SIGNED_A8
,
1393 "MESA_FORMAT_SIGNED_A8",
1395 GL_SIGNED_NORMALIZED
,
1401 MESA_FORMAT_SIGNED_L8
,
1402 "MESA_FORMAT_SIGNED_L8",
1404 GL_SIGNED_NORMALIZED
,
1410 MESA_FORMAT_SIGNED_AL88
,
1411 "MESA_FORMAT_SIGNED_AL88",
1413 GL_SIGNED_NORMALIZED
,
1419 MESA_FORMAT_SIGNED_I8
,
1420 "MESA_FORMAT_SIGNED_I8",
1422 GL_SIGNED_NORMALIZED
,
1428 MESA_FORMAT_SIGNED_A16
,
1429 "MESA_FORMAT_SIGNED_A16",
1431 GL_SIGNED_NORMALIZED
,
1437 MESA_FORMAT_SIGNED_L16
,
1438 "MESA_FORMAT_SIGNED_L16",
1440 GL_SIGNED_NORMALIZED
,
1446 MESA_FORMAT_SIGNED_AL1616
,
1447 "MESA_FORMAT_SIGNED_AL1616",
1449 GL_SIGNED_NORMALIZED
,
1455 MESA_FORMAT_SIGNED_I16
,
1456 "MESA_FORMAT_SIGNED_I16",
1458 GL_SIGNED_NORMALIZED
,
1463 /* ARB_depth_buffer_float */
1465 MESA_FORMAT_Z32_FLOAT
, /* Name */
1466 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1467 GL_DEPTH_COMPONENT
, /* BaseFormat */
1468 GL_FLOAT
, /* DataType */
1469 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1470 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1471 1, 1, 4 /* BlockWidth/Height,Bytes */
1474 MESA_FORMAT_Z32_FLOAT_X24S8
, /* Name */
1475 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1476 GL_DEPTH_STENCIL
, /* BaseFormat */
1477 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1478 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1480 GL_FLOAT
, /* DataType */
1481 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1482 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1483 1, 1, 8 /* BlockWidth/Height,Bytes */
1486 MESA_FORMAT_ARGB2101010_UINT
,
1487 "MESA_FORMAT_ARGB2101010_UINT",
1498 static const struct gl_format_info
*
1499 _mesa_get_format_info(gl_format format
)
1501 const struct gl_format_info
*info
= &format_info
[format
];
1502 assert(info
->Name
== format
);
1507 /** Return string name of format (for debugging) */
1509 _mesa_get_format_name(gl_format format
)
1511 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1512 return info
->StrName
;
1518 * Return bytes needed to store a block of pixels in the given format.
1519 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1520 * a block may be 4x4 or 8x4, etc.
1522 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1525 _mesa_get_format_bytes(gl_format format
)
1527 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1528 ASSERT(info
->BytesPerBlock
);
1529 ASSERT(info
->BytesPerBlock
<= MAX_PIXEL_BYTES
||
1530 _mesa_is_format_compressed(format
));
1531 return info
->BytesPerBlock
;
1536 * Return bits per component for the given format.
1537 * \param format one of MESA_FORMAT_x
1538 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1541 _mesa_get_format_bits(gl_format format
, GLenum pname
)
1543 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1547 case GL_TEXTURE_RED_SIZE
:
1548 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1549 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1550 return info
->RedBits
;
1552 case GL_TEXTURE_GREEN_SIZE
:
1553 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1554 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1555 return info
->GreenBits
;
1557 case GL_TEXTURE_BLUE_SIZE
:
1558 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1559 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1560 return info
->BlueBits
;
1562 case GL_TEXTURE_ALPHA_SIZE
:
1563 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1564 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1565 return info
->AlphaBits
;
1566 case GL_TEXTURE_INTENSITY_SIZE
:
1567 return info
->IntensityBits
;
1568 case GL_TEXTURE_LUMINANCE_SIZE
:
1569 return info
->LuminanceBits
;
1571 return info
->IndexBits
;
1573 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1574 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1575 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1576 return info
->DepthBits
;
1577 case GL_STENCIL_BITS
:
1578 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1579 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1580 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1581 return info
->StencilBits
;
1583 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
1590 _mesa_get_format_max_bits(gl_format format
)
1592 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1593 GLuint max
= MAX2(info
->RedBits
, info
->GreenBits
);
1594 max
= MAX2(max
, info
->BlueBits
);
1595 max
= MAX2(max
, info
->AlphaBits
);
1596 max
= MAX2(max
, info
->LuminanceBits
);
1597 max
= MAX2(max
, info
->IntensityBits
);
1598 max
= MAX2(max
, info
->DepthBits
);
1599 max
= MAX2(max
, info
->StencilBits
);
1605 * Return the data type (or more specifically, the data representation)
1606 * for the given format.
1607 * The return value will be one of:
1608 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1609 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1610 * GL_UNSIGNED_INT = an ordinary unsigned integer
1611 * GL_INT = an ordinary signed integer
1612 * GL_FLOAT = an ordinary float
1615 _mesa_get_format_datatype(gl_format format
)
1617 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1618 return info
->DataType
;
1623 * Return the basic format for the given type. The result will be one of
1624 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1625 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1628 _mesa_get_format_base_format(gl_format format
)
1630 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1631 return info
->BaseFormat
;
1636 * Return the block size (in pixels) for the given format. Normally
1637 * the block size is 1x1. But compressed formats will have block sizes
1638 * of 4x4 or 8x4 pixels, etc.
1639 * \param bw returns block width in pixels
1640 * \param bh returns block height in pixels
1643 _mesa_get_format_block_size(gl_format format
, GLuint
*bw
, GLuint
*bh
)
1645 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1646 *bw
= info
->BlockWidth
;
1647 *bh
= info
->BlockHeight
;
1651 /** Is the given format a compressed format? */
1653 _mesa_is_format_compressed(gl_format format
)
1655 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1656 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
1661 * Determine if the given format represents a packed depth/stencil buffer.
1664 _mesa_is_format_packed_depth_stencil(gl_format format
)
1666 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1668 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
1673 * Is the given format a signed/unsigned integer color format?
1676 _mesa_is_format_integer_color(gl_format format
)
1678 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1679 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
1680 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
1681 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
1682 info
->BaseFormat
!= GL_STENCIL_INDEX
;
1687 * Return color encoding for given format.
1688 * \return GL_LINEAR or GL_SRGB
1691 _mesa_get_format_color_encoding(gl_format format
)
1693 /* XXX this info should be encoded in gl_format_info */
1695 case MESA_FORMAT_SRGB8
:
1696 case MESA_FORMAT_SRGBA8
:
1697 case MESA_FORMAT_SARGB8
:
1698 case MESA_FORMAT_SL8
:
1699 case MESA_FORMAT_SLA8
:
1700 case MESA_FORMAT_SRGB_DXT1
:
1701 case MESA_FORMAT_SRGBA_DXT1
:
1702 case MESA_FORMAT_SRGBA_DXT3
:
1703 case MESA_FORMAT_SRGBA_DXT5
:
1712 * For an sRGB format, return the corresponding linear color space format.
1713 * For non-sRGB formats, return the format as-is.
1716 _mesa_get_srgb_format_linear(gl_format format
)
1719 case MESA_FORMAT_SRGB8
:
1720 format
= MESA_FORMAT_RGB888
;
1722 case MESA_FORMAT_SRGBA8
:
1723 format
= MESA_FORMAT_RGBA8888
;
1725 case MESA_FORMAT_SARGB8
:
1726 format
= MESA_FORMAT_ARGB8888
;
1728 case MESA_FORMAT_SL8
:
1729 format
= MESA_FORMAT_L8
;
1731 case MESA_FORMAT_SLA8
:
1732 format
= MESA_FORMAT_AL88
;
1734 case MESA_FORMAT_SRGB_DXT1
:
1735 format
= MESA_FORMAT_RGB_DXT1
;
1737 case MESA_FORMAT_SRGBA_DXT1
:
1738 format
= MESA_FORMAT_RGBA_DXT1
;
1740 case MESA_FORMAT_SRGBA_DXT3
:
1741 format
= MESA_FORMAT_RGBA_DXT3
;
1743 case MESA_FORMAT_SRGBA_DXT5
:
1744 format
= MESA_FORMAT_RGBA_DXT5
;
1754 * If the given format is a compressed format, return a corresponding
1755 * uncompressed format.
1758 _mesa_get_uncompressed_format(gl_format format
)
1761 case MESA_FORMAT_RGB_FXT1
:
1762 return MESA_FORMAT_RGB888
;
1763 case MESA_FORMAT_RGBA_FXT1
:
1764 return MESA_FORMAT_RGBA8888
;
1765 case MESA_FORMAT_RGB_DXT1
:
1766 case MESA_FORMAT_SRGB_DXT1
:
1767 return MESA_FORMAT_RGB888
;
1768 case MESA_FORMAT_RGBA_DXT1
:
1769 case MESA_FORMAT_SRGBA_DXT1
:
1770 return MESA_FORMAT_RGBA8888
;
1771 case MESA_FORMAT_RGBA_DXT3
:
1772 case MESA_FORMAT_SRGBA_DXT3
:
1773 return MESA_FORMAT_RGBA8888
;
1774 case MESA_FORMAT_RGBA_DXT5
:
1775 case MESA_FORMAT_SRGBA_DXT5
:
1776 return MESA_FORMAT_RGBA8888
;
1777 case MESA_FORMAT_RED_RGTC1
:
1778 return MESA_FORMAT_R8
;
1779 case MESA_FORMAT_SIGNED_RED_RGTC1
:
1780 return MESA_FORMAT_SIGNED_R8
;
1781 case MESA_FORMAT_RG_RGTC2
:
1782 return MESA_FORMAT_GR88
;
1783 case MESA_FORMAT_SIGNED_RG_RGTC2
:
1784 return MESA_FORMAT_SIGNED_RG88_REV
;
1785 case MESA_FORMAT_L_LATC1
:
1786 return MESA_FORMAT_L8
;
1787 case MESA_FORMAT_SIGNED_L_LATC1
:
1788 return MESA_FORMAT_SIGNED_L8
;
1789 case MESA_FORMAT_LA_LATC2
:
1790 return MESA_FORMAT_AL88
;
1791 case MESA_FORMAT_SIGNED_LA_LATC2
:
1792 return MESA_FORMAT_SIGNED_AL88
;
1795 assert(!_mesa_is_format_compressed(format
));
1803 _mesa_format_num_components(gl_format format
)
1805 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1806 return ((info
->RedBits
> 0) +
1807 (info
->GreenBits
> 0) +
1808 (info
->BlueBits
> 0) +
1809 (info
->AlphaBits
> 0) +
1810 (info
->LuminanceBits
> 0) +
1811 (info
->IntensityBits
> 0) +
1812 (info
->DepthBits
> 0) +
1813 (info
->StencilBits
> 0));
1818 * Return number of bytes needed to store an image of the given size
1819 * in the given format.
1822 _mesa_format_image_size(gl_format format
, GLsizei width
,
1823 GLsizei height
, GLsizei depth
)
1825 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1826 /* Strictly speaking, a conditional isn't needed here */
1827 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1828 /* compressed format (2D only for now) */
1829 const GLuint bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1830 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1831 const GLuint hblocks
= (height
+ bh
- 1) / bh
;
1832 const GLuint sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1837 /* non-compressed */
1838 const GLuint sz
= width
* height
* depth
* info
->BytesPerBlock
;
1845 * Same as _mesa_format_image_size() but returns a 64-bit value to
1846 * accomodate very large textures.
1849 _mesa_format_image_size64(gl_format format
, GLsizei width
,
1850 GLsizei height
, GLsizei depth
)
1852 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1853 /* Strictly speaking, a conditional isn't needed here */
1854 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1855 /* compressed format (2D only for now) */
1856 const uint64_t bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1857 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
1858 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
1859 const uint64_t sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1864 /* non-compressed */
1865 const uint64_t sz
= ((uint64_t) width
*
1868 info
->BytesPerBlock
);
1876 _mesa_format_row_stride(gl_format format
, GLsizei width
)
1878 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1879 /* Strictly speaking, a conditional isn't needed here */
1880 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1881 /* compressed format */
1882 const GLuint bw
= info
->BlockWidth
;
1883 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1884 const GLint stride
= wblocks
* info
->BytesPerBlock
;
1888 const GLint stride
= width
* info
->BytesPerBlock
;
1895 * Debug/test: check that all formats are handled in the
1896 * _mesa_format_to_type_and_comps() function. When new pixel formats
1897 * are added to Mesa, that function needs to be updated.
1898 * This is a no-op after the first call.
1901 check_format_to_type_and_comps(void)
1905 for (f
= MESA_FORMAT_NONE
+ 1; f
< MESA_FORMAT_COUNT
; f
++) {
1906 GLenum datatype
= 0;
1908 /* This function will emit a problem/warning if the format is
1911 _mesa_format_to_type_and_comps(f
, &datatype
, &comps
);
1917 * Do sanity checking of the format info table.
1920 _mesa_test_formats(void)
1924 STATIC_ASSERT(Elements(format_info
) == MESA_FORMAT_COUNT
);
1926 for (i
= 0; i
< MESA_FORMAT_COUNT
; i
++) {
1927 const struct gl_format_info
*info
= _mesa_get_format_info(i
);
1930 assert(info
->Name
== i
);
1932 if (info
->Name
== MESA_FORMAT_NONE
)
1935 if (info
->BlockWidth
== 1 && info
->BlockHeight
== 1) {
1936 if (info
->RedBits
> 0) {
1937 GLuint t
= info
->RedBits
+ info
->GreenBits
1938 + info
->BlueBits
+ info
->AlphaBits
;
1939 assert(t
/ 8 <= info
->BytesPerBlock
);
1944 assert(info
->DataType
== GL_UNSIGNED_NORMALIZED
||
1945 info
->DataType
== GL_SIGNED_NORMALIZED
||
1946 info
->DataType
== GL_UNSIGNED_INT
||
1947 info
->DataType
== GL_INT
||
1948 info
->DataType
== GL_FLOAT
||
1949 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1950 info
->DataType
== GL_NONE
);
1952 if (info
->BaseFormat
== GL_RGB
) {
1953 assert(info
->RedBits
> 0);
1954 assert(info
->GreenBits
> 0);
1955 assert(info
->BlueBits
> 0);
1956 assert(info
->AlphaBits
== 0);
1957 assert(info
->LuminanceBits
== 0);
1958 assert(info
->IntensityBits
== 0);
1960 else if (info
->BaseFormat
== GL_RGBA
) {
1961 assert(info
->RedBits
> 0);
1962 assert(info
->GreenBits
> 0);
1963 assert(info
->BlueBits
> 0);
1964 assert(info
->AlphaBits
> 0);
1965 assert(info
->LuminanceBits
== 0);
1966 assert(info
->IntensityBits
== 0);
1968 else if (info
->BaseFormat
== GL_RG
) {
1969 assert(info
->RedBits
> 0);
1970 assert(info
->GreenBits
> 0);
1971 assert(info
->BlueBits
== 0);
1972 assert(info
->AlphaBits
== 0);
1973 assert(info
->LuminanceBits
== 0);
1974 assert(info
->IntensityBits
== 0);
1976 else if (info
->BaseFormat
== GL_RED
) {
1977 assert(info
->RedBits
> 0);
1978 assert(info
->GreenBits
== 0);
1979 assert(info
->BlueBits
== 0);
1980 assert(info
->AlphaBits
== 0);
1981 assert(info
->LuminanceBits
== 0);
1982 assert(info
->IntensityBits
== 0);
1984 else if (info
->BaseFormat
== GL_LUMINANCE
) {
1985 assert(info
->RedBits
== 0);
1986 assert(info
->GreenBits
== 0);
1987 assert(info
->BlueBits
== 0);
1988 assert(info
->AlphaBits
== 0);
1989 assert(info
->LuminanceBits
> 0);
1990 assert(info
->IntensityBits
== 0);
1992 else if (info
->BaseFormat
== GL_INTENSITY
) {
1993 assert(info
->RedBits
== 0);
1994 assert(info
->GreenBits
== 0);
1995 assert(info
->BlueBits
== 0);
1996 assert(info
->AlphaBits
== 0);
1997 assert(info
->LuminanceBits
== 0);
1998 assert(info
->IntensityBits
> 0);
2002 check_format_to_type_and_comps();
2008 * Return datatype and number of components per texel for the given gl_format.
2009 * Only used for mipmap generation code.
2012 _mesa_format_to_type_and_comps(gl_format format
,
2013 GLenum
*datatype
, GLuint
*comps
)
2016 case MESA_FORMAT_RGBA8888
:
2017 case MESA_FORMAT_RGBA8888_REV
:
2018 case MESA_FORMAT_ARGB8888
:
2019 case MESA_FORMAT_ARGB8888_REV
:
2020 case MESA_FORMAT_RGBX8888
:
2021 case MESA_FORMAT_RGBX8888_REV
:
2022 case MESA_FORMAT_XRGB8888
:
2023 case MESA_FORMAT_XRGB8888_REV
:
2024 *datatype
= GL_UNSIGNED_BYTE
;
2027 case MESA_FORMAT_RGB888
:
2028 case MESA_FORMAT_BGR888
:
2029 *datatype
= GL_UNSIGNED_BYTE
;
2032 case MESA_FORMAT_RGB565
:
2033 case MESA_FORMAT_RGB565_REV
:
2034 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
2038 case MESA_FORMAT_ARGB4444
:
2039 case MESA_FORMAT_ARGB4444_REV
:
2040 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
2044 case MESA_FORMAT_ARGB1555
:
2045 case MESA_FORMAT_ARGB1555_REV
:
2046 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2050 case MESA_FORMAT_ARGB2101010
:
2051 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2055 case MESA_FORMAT_RGBA5551
:
2056 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
2060 case MESA_FORMAT_AL44
:
2061 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
2065 case MESA_FORMAT_AL88
:
2066 case MESA_FORMAT_AL88_REV
:
2067 case MESA_FORMAT_GR88
:
2068 case MESA_FORMAT_RG88
:
2069 *datatype
= GL_UNSIGNED_BYTE
;
2073 case MESA_FORMAT_AL1616
:
2074 case MESA_FORMAT_AL1616_REV
:
2075 case MESA_FORMAT_RG1616
:
2076 case MESA_FORMAT_RG1616_REV
:
2077 *datatype
= GL_UNSIGNED_SHORT
;
2081 case MESA_FORMAT_R16
:
2082 case MESA_FORMAT_A16
:
2083 case MESA_FORMAT_L16
:
2084 case MESA_FORMAT_I16
:
2085 *datatype
= GL_UNSIGNED_SHORT
;
2089 case MESA_FORMAT_RGB332
:
2090 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
2094 case MESA_FORMAT_A8
:
2095 case MESA_FORMAT_L8
:
2096 case MESA_FORMAT_I8
:
2097 case MESA_FORMAT_R8
:
2098 case MESA_FORMAT_S8
:
2099 *datatype
= GL_UNSIGNED_BYTE
;
2103 case MESA_FORMAT_YCBCR
:
2104 case MESA_FORMAT_YCBCR_REV
:
2105 *datatype
= GL_UNSIGNED_SHORT
;
2109 case MESA_FORMAT_Z24_S8
:
2110 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
2114 case MESA_FORMAT_S8_Z24
:
2115 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
2119 case MESA_FORMAT_Z16
:
2120 *datatype
= GL_UNSIGNED_SHORT
;
2124 case MESA_FORMAT_X8_Z24
:
2125 *datatype
= GL_UNSIGNED_INT
;
2129 case MESA_FORMAT_Z24_X8
:
2130 *datatype
= GL_UNSIGNED_INT
;
2134 case MESA_FORMAT_Z32
:
2135 *datatype
= GL_UNSIGNED_INT
;
2139 case MESA_FORMAT_Z32_FLOAT
:
2140 *datatype
= GL_FLOAT
;
2144 case MESA_FORMAT_Z32_FLOAT_X24S8
:
2145 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
2149 case MESA_FORMAT_DUDV8
:
2150 *datatype
= GL_BYTE
;
2154 case MESA_FORMAT_SIGNED_R8
:
2155 case MESA_FORMAT_SIGNED_A8
:
2156 case MESA_FORMAT_SIGNED_L8
:
2157 case MESA_FORMAT_SIGNED_I8
:
2158 *datatype
= GL_BYTE
;
2161 case MESA_FORMAT_SIGNED_RG88_REV
:
2162 case MESA_FORMAT_SIGNED_AL88
:
2163 *datatype
= GL_BYTE
;
2166 case MESA_FORMAT_SIGNED_RGBA8888
:
2167 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2168 case MESA_FORMAT_SIGNED_RGBX8888
:
2169 *datatype
= GL_BYTE
;
2173 case MESA_FORMAT_RGBA_16
:
2174 *datatype
= GL_UNSIGNED_SHORT
;
2178 case MESA_FORMAT_SIGNED_R16
:
2179 case MESA_FORMAT_SIGNED_A16
:
2180 case MESA_FORMAT_SIGNED_L16
:
2181 case MESA_FORMAT_SIGNED_I16
:
2182 *datatype
= GL_SHORT
;
2185 case MESA_FORMAT_SIGNED_GR1616
:
2186 case MESA_FORMAT_SIGNED_AL1616
:
2187 *datatype
= GL_SHORT
;
2190 case MESA_FORMAT_SIGNED_RGB_16
:
2191 *datatype
= GL_SHORT
;
2194 case MESA_FORMAT_SIGNED_RGBA_16
:
2195 *datatype
= GL_SHORT
;
2199 #if FEATURE_EXT_texture_sRGB
2200 case MESA_FORMAT_SRGB8
:
2201 *datatype
= GL_UNSIGNED_BYTE
;
2204 case MESA_FORMAT_SRGBA8
:
2205 case MESA_FORMAT_SARGB8
:
2206 *datatype
= GL_UNSIGNED_BYTE
;
2209 case MESA_FORMAT_SL8
:
2210 *datatype
= GL_UNSIGNED_BYTE
;
2213 case MESA_FORMAT_SLA8
:
2214 *datatype
= GL_UNSIGNED_BYTE
;
2219 #if FEATURE_texture_fxt1
2220 case MESA_FORMAT_RGB_FXT1
:
2221 case MESA_FORMAT_RGBA_FXT1
:
2223 #if FEATURE_texture_s3tc
2224 case MESA_FORMAT_RGB_DXT1
:
2225 case MESA_FORMAT_RGBA_DXT1
:
2226 case MESA_FORMAT_RGBA_DXT3
:
2227 case MESA_FORMAT_RGBA_DXT5
:
2228 #if FEATURE_EXT_texture_sRGB
2229 case MESA_FORMAT_SRGB_DXT1
:
2230 case MESA_FORMAT_SRGBA_DXT1
:
2231 case MESA_FORMAT_SRGBA_DXT3
:
2232 case MESA_FORMAT_SRGBA_DXT5
:
2235 case MESA_FORMAT_RED_RGTC1
:
2236 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2237 case MESA_FORMAT_RG_RGTC2
:
2238 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2239 case MESA_FORMAT_L_LATC1
:
2240 case MESA_FORMAT_SIGNED_L_LATC1
:
2241 case MESA_FORMAT_LA_LATC2
:
2242 case MESA_FORMAT_SIGNED_LA_LATC2
:
2243 /* XXX generate error instead? */
2244 *datatype
= GL_UNSIGNED_BYTE
;
2248 case MESA_FORMAT_RGBA_FLOAT32
:
2249 *datatype
= GL_FLOAT
;
2252 case MESA_FORMAT_RGBA_FLOAT16
:
2253 *datatype
= GL_HALF_FLOAT_ARB
;
2256 case MESA_FORMAT_RGB_FLOAT32
:
2257 *datatype
= GL_FLOAT
;
2260 case MESA_FORMAT_RGB_FLOAT16
:
2261 *datatype
= GL_HALF_FLOAT_ARB
;
2264 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2265 case MESA_FORMAT_RG_FLOAT32
:
2266 *datatype
= GL_FLOAT
;
2269 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2270 case MESA_FORMAT_RG_FLOAT16
:
2271 *datatype
= GL_HALF_FLOAT_ARB
;
2274 case MESA_FORMAT_ALPHA_FLOAT32
:
2275 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2276 case MESA_FORMAT_INTENSITY_FLOAT32
:
2277 case MESA_FORMAT_R_FLOAT32
:
2278 *datatype
= GL_FLOAT
;
2281 case MESA_FORMAT_ALPHA_FLOAT16
:
2282 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2283 case MESA_FORMAT_INTENSITY_FLOAT16
:
2284 case MESA_FORMAT_R_FLOAT16
:
2285 *datatype
= GL_HALF_FLOAT_ARB
;
2289 case MESA_FORMAT_ALPHA_UINT8
:
2290 case MESA_FORMAT_LUMINANCE_UINT8
:
2291 case MESA_FORMAT_INTENSITY_UINT8
:
2292 *datatype
= GL_UNSIGNED_BYTE
;
2295 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2296 *datatype
= GL_UNSIGNED_BYTE
;
2300 case MESA_FORMAT_ALPHA_UINT16
:
2301 case MESA_FORMAT_LUMINANCE_UINT16
:
2302 case MESA_FORMAT_INTENSITY_UINT16
:
2303 *datatype
= GL_UNSIGNED_SHORT
;
2306 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2307 *datatype
= GL_UNSIGNED_SHORT
;
2310 case MESA_FORMAT_ALPHA_UINT32
:
2311 case MESA_FORMAT_LUMINANCE_UINT32
:
2312 case MESA_FORMAT_INTENSITY_UINT32
:
2313 *datatype
= GL_UNSIGNED_INT
;
2316 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2317 *datatype
= GL_UNSIGNED_INT
;
2320 case MESA_FORMAT_ALPHA_INT8
:
2321 case MESA_FORMAT_LUMINANCE_INT8
:
2322 case MESA_FORMAT_INTENSITY_INT8
:
2323 *datatype
= GL_BYTE
;
2326 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2327 *datatype
= GL_BYTE
;
2331 case MESA_FORMAT_ALPHA_INT16
:
2332 case MESA_FORMAT_LUMINANCE_INT16
:
2333 case MESA_FORMAT_INTENSITY_INT16
:
2334 *datatype
= GL_SHORT
;
2337 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2338 *datatype
= GL_SHORT
;
2342 case MESA_FORMAT_ALPHA_INT32
:
2343 case MESA_FORMAT_LUMINANCE_INT32
:
2344 case MESA_FORMAT_INTENSITY_INT32
:
2348 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2353 case MESA_FORMAT_R_INT8
:
2354 *datatype
= GL_BYTE
;
2357 case MESA_FORMAT_RG_INT8
:
2358 *datatype
= GL_BYTE
;
2361 case MESA_FORMAT_RGB_INT8
:
2362 *datatype
= GL_BYTE
;
2365 case MESA_FORMAT_RGBA_INT8
:
2366 *datatype
= GL_BYTE
;
2369 case MESA_FORMAT_R_INT16
:
2370 *datatype
= GL_SHORT
;
2373 case MESA_FORMAT_RG_INT16
:
2374 *datatype
= GL_SHORT
;
2377 case MESA_FORMAT_RGB_INT16
:
2378 *datatype
= GL_SHORT
;
2381 case MESA_FORMAT_RGBA_INT16
:
2382 *datatype
= GL_SHORT
;
2385 case MESA_FORMAT_R_INT32
:
2389 case MESA_FORMAT_RG_INT32
:
2393 case MESA_FORMAT_RGB_INT32
:
2397 case MESA_FORMAT_RGBA_INT32
:
2403 * \name Non-normalized unsigned integer formats.
2405 case MESA_FORMAT_R_UINT8
:
2406 *datatype
= GL_UNSIGNED_BYTE
;
2409 case MESA_FORMAT_RG_UINT8
:
2410 *datatype
= GL_UNSIGNED_BYTE
;
2413 case MESA_FORMAT_RGB_UINT8
:
2414 *datatype
= GL_UNSIGNED_BYTE
;
2417 case MESA_FORMAT_RGBA_UINT8
:
2418 *datatype
= GL_UNSIGNED_BYTE
;
2421 case MESA_FORMAT_R_UINT16
:
2422 *datatype
= GL_UNSIGNED_SHORT
;
2425 case MESA_FORMAT_RG_UINT16
:
2426 *datatype
= GL_UNSIGNED_SHORT
;
2429 case MESA_FORMAT_RGB_UINT16
:
2430 *datatype
= GL_UNSIGNED_SHORT
;
2433 case MESA_FORMAT_RGBA_UINT16
:
2434 *datatype
= GL_UNSIGNED_SHORT
;
2437 case MESA_FORMAT_R_UINT32
:
2438 *datatype
= GL_UNSIGNED_INT
;
2441 case MESA_FORMAT_RG_UINT32
:
2442 *datatype
= GL_UNSIGNED_INT
;
2445 case MESA_FORMAT_RGB_UINT32
:
2446 *datatype
= GL_UNSIGNED_INT
;
2449 case MESA_FORMAT_RGBA_UINT32
:
2450 *datatype
= GL_UNSIGNED_INT
;
2454 case MESA_FORMAT_ARGB2101010_UINT
:
2455 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2459 case MESA_FORMAT_COUNT
:
2463 case MESA_FORMAT_NONE
:
2464 /* For debug builds, warn if any formats are not handled */
2468 _mesa_problem(NULL
, "bad format %s in _mesa_format_to_type_and_comps",
2469 _mesa_get_format_name(format
));
2476 * Check if a gl_format exactly matches a GL formaat/type combination
2477 * such that we can use memcpy() from one to the other.
2479 * Note: this matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2481 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2484 _mesa_format_matches_format_and_type(gl_format gl_format
,
2485 GLenum format
, GLenum type
)
2487 const GLboolean littleEndian
= _mesa_little_endian();
2489 /* Note: When reading a GL format/type combination, the format lists channel
2490 * assignments from most significant channel in the type to least
2491 * significant. A type with _REV indicates that the assignments are
2492 * swapped, so they are listed from least significant to most significant.
2494 * For sanity, please keep this switch statement ordered the same as the
2495 * enums in formats.h.
2498 switch (gl_format
) {
2500 case MESA_FORMAT_NONE
:
2501 case MESA_FORMAT_COUNT
:
2504 case MESA_FORMAT_RGBA8888
:
2505 return ((format
== GL_RGBA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2506 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))) ||
2507 (format
== GL_ABGR_EXT
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2508 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2510 case MESA_FORMAT_RGBA8888_REV
:
2511 return ((format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
));
2513 case MESA_FORMAT_ARGB8888
:
2514 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2515 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2517 case MESA_FORMAT_ARGB8888_REV
:
2518 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2519 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))));
2521 case MESA_FORMAT_RGBX8888
:
2522 case MESA_FORMAT_RGBX8888_REV
:
2525 case MESA_FORMAT_XRGB8888
:
2526 case MESA_FORMAT_XRGB8888_REV
:
2529 case MESA_FORMAT_RGB888
:
2530 return format
== GL_BGR
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2532 case MESA_FORMAT_BGR888
:
2533 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2535 case MESA_FORMAT_RGB565
:
2536 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
;
2537 case MESA_FORMAT_RGB565_REV
:
2538 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2539 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2540 * according to formats.h, so they can't be matched.
2544 case MESA_FORMAT_ARGB4444
:
2545 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
;
2546 case MESA_FORMAT_ARGB4444_REV
:
2549 case MESA_FORMAT_RGBA5551
:
2550 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
;
2552 case MESA_FORMAT_ARGB1555
:
2553 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2554 case MESA_FORMAT_ARGB1555_REV
:
2557 case MESA_FORMAT_AL44
:
2559 case MESA_FORMAT_AL88
:
2560 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2561 case MESA_FORMAT_AL88_REV
:
2564 case MESA_FORMAT_AL1616
:
2565 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2566 case MESA_FORMAT_AL1616_REV
:
2569 case MESA_FORMAT_RGB332
:
2570 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
2572 case MESA_FORMAT_A8
:
2573 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
2574 case MESA_FORMAT_A16
:
2575 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2576 case MESA_FORMAT_L8
:
2577 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
2578 case MESA_FORMAT_L16
:
2579 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2580 case MESA_FORMAT_I8
:
2581 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_BYTE
;
2582 case MESA_FORMAT_I16
:
2583 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2585 case MESA_FORMAT_YCBCR
:
2586 case MESA_FORMAT_YCBCR_REV
:
2589 case MESA_FORMAT_R8
:
2590 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
2591 case MESA_FORMAT_GR88
:
2592 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2593 case MESA_FORMAT_RG88
:
2596 case MESA_FORMAT_R16
:
2597 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2598 case MESA_FORMAT_RG1616
:
2599 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2600 case MESA_FORMAT_RG1616_REV
:
2603 case MESA_FORMAT_ARGB2101010
:
2604 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
;
2606 case MESA_FORMAT_Z24_S8
:
2607 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
;
2608 case MESA_FORMAT_Z24_X8
:
2609 case MESA_FORMAT_S8_Z24
:
2612 case MESA_FORMAT_Z16
:
2613 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
;
2615 case MESA_FORMAT_X8_Z24
:
2618 case MESA_FORMAT_Z32
:
2619 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
;
2621 case MESA_FORMAT_S8
:
2624 case MESA_FORMAT_SRGB8
:
2625 case MESA_FORMAT_SRGBA8
:
2626 case MESA_FORMAT_SARGB8
:
2627 case MESA_FORMAT_SL8
:
2628 case MESA_FORMAT_SLA8
:
2629 case MESA_FORMAT_SRGB_DXT1
:
2630 case MESA_FORMAT_SRGBA_DXT1
:
2631 case MESA_FORMAT_SRGBA_DXT3
:
2632 case MESA_FORMAT_SRGBA_DXT5
:
2635 case MESA_FORMAT_RGB_FXT1
:
2636 case MESA_FORMAT_RGBA_FXT1
:
2637 case MESA_FORMAT_RGB_DXT1
:
2638 case MESA_FORMAT_RGBA_DXT1
:
2639 case MESA_FORMAT_RGBA_DXT3
:
2640 case MESA_FORMAT_RGBA_DXT5
:
2643 case MESA_FORMAT_RGBA_FLOAT32
:
2644 return format
== GL_RGBA
&& type
== GL_FLOAT
;
2645 case MESA_FORMAT_RGBA_FLOAT16
:
2646 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
;
2648 case MESA_FORMAT_RGB_FLOAT32
:
2649 return format
== GL_RGB
&& type
== GL_FLOAT
;
2650 case MESA_FORMAT_RGB_FLOAT16
:
2651 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
;
2653 case MESA_FORMAT_ALPHA_FLOAT32
:
2654 return format
== GL_ALPHA
&& type
== GL_FLOAT
;
2655 case MESA_FORMAT_ALPHA_FLOAT16
:
2656 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
;
2658 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2659 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
;
2660 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2661 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
;
2663 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2664 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
;
2665 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2666 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
;
2668 case MESA_FORMAT_INTENSITY_FLOAT32
:
2669 return format
== GL_INTENSITY
&& type
== GL_FLOAT
;
2670 case MESA_FORMAT_INTENSITY_FLOAT16
:
2671 return format
== GL_INTENSITY
&& type
== GL_HALF_FLOAT
;
2673 case MESA_FORMAT_R_FLOAT32
:
2674 return format
== GL_RED
&& type
== GL_FLOAT
;
2675 case MESA_FORMAT_R_FLOAT16
:
2676 return format
== GL_RED
&& type
== GL_HALF_FLOAT
;
2678 case MESA_FORMAT_RG_FLOAT32
:
2679 return format
== GL_RG
&& type
== GL_FLOAT
;
2680 case MESA_FORMAT_RG_FLOAT16
:
2681 return format
== GL_RG
&& type
== GL_HALF_FLOAT
;
2683 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2684 case MESA_FORMAT_ALPHA_UINT8
:
2685 case MESA_FORMAT_ALPHA_UINT16
:
2686 case MESA_FORMAT_ALPHA_UINT32
:
2687 case MESA_FORMAT_ALPHA_INT8
:
2688 case MESA_FORMAT_ALPHA_INT16
:
2689 case MESA_FORMAT_ALPHA_INT32
:
2692 case MESA_FORMAT_INTENSITY_UINT8
:
2693 case MESA_FORMAT_INTENSITY_UINT16
:
2694 case MESA_FORMAT_INTENSITY_UINT32
:
2695 case MESA_FORMAT_INTENSITY_INT8
:
2696 case MESA_FORMAT_INTENSITY_INT16
:
2697 case MESA_FORMAT_INTENSITY_INT32
:
2700 case MESA_FORMAT_LUMINANCE_UINT8
:
2701 case MESA_FORMAT_LUMINANCE_UINT16
:
2702 case MESA_FORMAT_LUMINANCE_UINT32
:
2703 case MESA_FORMAT_LUMINANCE_INT8
:
2704 case MESA_FORMAT_LUMINANCE_INT16
:
2705 case MESA_FORMAT_LUMINANCE_INT32
:
2708 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2709 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2710 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2711 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2712 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2713 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2716 case MESA_FORMAT_R_INT8
:
2717 case MESA_FORMAT_RG_INT8
:
2718 case MESA_FORMAT_RGB_INT8
:
2719 case MESA_FORMAT_RGBA_INT8
:
2720 case MESA_FORMAT_R_INT16
:
2721 case MESA_FORMAT_RG_INT16
:
2722 case MESA_FORMAT_RGB_INT16
:
2723 case MESA_FORMAT_RGBA_INT16
:
2724 case MESA_FORMAT_R_INT32
:
2725 case MESA_FORMAT_RG_INT32
:
2726 case MESA_FORMAT_RGB_INT32
:
2727 case MESA_FORMAT_RGBA_INT32
:
2730 case MESA_FORMAT_R_UINT8
:
2731 case MESA_FORMAT_RG_UINT8
:
2732 case MESA_FORMAT_RGB_UINT8
:
2733 case MESA_FORMAT_RGBA_UINT8
:
2734 case MESA_FORMAT_R_UINT16
:
2735 case MESA_FORMAT_RG_UINT16
:
2736 case MESA_FORMAT_RGB_UINT16
:
2737 case MESA_FORMAT_RGBA_UINT16
:
2738 case MESA_FORMAT_R_UINT32
:
2739 case MESA_FORMAT_RG_UINT32
:
2740 case MESA_FORMAT_RGB_UINT32
:
2741 case MESA_FORMAT_RGBA_UINT32
:
2744 case MESA_FORMAT_DUDV8
:
2745 case MESA_FORMAT_SIGNED_R8
:
2746 case MESA_FORMAT_SIGNED_RG88_REV
:
2747 case MESA_FORMAT_SIGNED_RGBX8888
:
2748 case MESA_FORMAT_SIGNED_RGBA8888
:
2749 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2750 case MESA_FORMAT_SIGNED_R16
:
2751 case MESA_FORMAT_SIGNED_GR1616
:
2752 case MESA_FORMAT_SIGNED_RGB_16
:
2753 case MESA_FORMAT_SIGNED_RGBA_16
:
2754 case MESA_FORMAT_RGBA_16
:
2755 /* FINISHME: SNORM */
2758 case MESA_FORMAT_RED_RGTC1
:
2759 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2760 case MESA_FORMAT_RG_RGTC2
:
2761 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2764 case MESA_FORMAT_L_LATC1
:
2765 case MESA_FORMAT_SIGNED_L_LATC1
:
2766 case MESA_FORMAT_LA_LATC2
:
2767 case MESA_FORMAT_SIGNED_LA_LATC2
:
2770 case MESA_FORMAT_SIGNED_A8
:
2771 case MESA_FORMAT_SIGNED_L8
:
2772 case MESA_FORMAT_SIGNED_AL88
:
2773 case MESA_FORMAT_SIGNED_I8
:
2774 case MESA_FORMAT_SIGNED_A16
:
2775 case MESA_FORMAT_SIGNED_L16
:
2776 case MESA_FORMAT_SIGNED_AL1616
:
2777 case MESA_FORMAT_SIGNED_I16
:
2778 /* FINISHME: SNORM */
2781 case MESA_FORMAT_ARGB2101010_UINT
:
2784 case MESA_FORMAT_Z32_FLOAT
:
2785 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
;
2787 case MESA_FORMAT_Z32_FLOAT_X24S8
: