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"
31 #include "glformats.h"
35 * Information about texture formats.
41 /** text name for debugging */
45 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
46 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
47 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL, GL_DUDV_ATI.
52 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
53 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
61 GLubyte LuminanceBits
;
62 GLubyte IntensityBits
;
68 * To describe compressed formats. If not compressed, Width=Height=1.
70 GLubyte BlockWidth
, BlockHeight
;
71 GLubyte BytesPerBlock
;
76 * Info about each format.
77 * These must be in the same order as the MESA_FORMAT_* enums so that
78 * we can do lookups without searching.
80 static struct gl_format_info format_info
[MESA_FORMAT_COUNT
] =
83 MESA_FORMAT_NONE
, /* Name */
84 "MESA_FORMAT_NONE", /* StrName */
85 GL_NONE
, /* BaseFormat */
86 GL_NONE
, /* DataType */
87 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
88 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
89 0, 0, 0 /* BlockWidth/Height,Bytes */
92 MESA_FORMAT_RGBA8888
, /* Name */
93 "MESA_FORMAT_RGBA8888", /* StrName */
94 GL_RGBA
, /* BaseFormat */
95 GL_UNSIGNED_NORMALIZED
, /* DataType */
96 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
97 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
98 1, 1, 4 /* BlockWidth/Height,Bytes */
101 MESA_FORMAT_RGBA8888_REV
, /* Name */
102 "MESA_FORMAT_RGBA8888_REV", /* StrName */
103 GL_RGBA
, /* BaseFormat */
104 GL_UNSIGNED_NORMALIZED
, /* DataType */
105 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
106 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
107 1, 1, 4 /* BlockWidth/Height,Bytes */
110 MESA_FORMAT_ARGB8888
, /* Name */
111 "MESA_FORMAT_ARGB8888", /* StrName */
112 GL_RGBA
, /* BaseFormat */
113 GL_UNSIGNED_NORMALIZED
, /* DataType */
114 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
115 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
116 1, 1, 4 /* BlockWidth/Height,Bytes */
119 MESA_FORMAT_ARGB8888_REV
, /* Name */
120 "MESA_FORMAT_ARGB8888_REV", /* StrName */
121 GL_RGBA
, /* BaseFormat */
122 GL_UNSIGNED_NORMALIZED
, /* DataType */
123 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
124 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
125 1, 1, 4 /* BlockWidth/Height,Bytes */
128 MESA_FORMAT_RGBX8888
, /* Name */
129 "MESA_FORMAT_RGBX8888", /* StrName */
130 GL_RGB
, /* BaseFormat */
131 GL_UNSIGNED_NORMALIZED
, /* DataType */
132 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
133 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
134 1, 1, 4 /* BlockWidth/Height,Bytes */
137 MESA_FORMAT_RGBX8888_REV
, /* Name */
138 "MESA_FORMAT_RGBX8888_REV", /* StrName */
139 GL_RGB
, /* BaseFormat */
140 GL_UNSIGNED_NORMALIZED
, /* DataType */
141 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
142 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
143 1, 1, 4 /* BlockWidth/Height,Bytes */
146 MESA_FORMAT_XRGB8888
, /* Name */
147 "MESA_FORMAT_XRGB8888", /* StrName */
148 GL_RGB
, /* BaseFormat */
149 GL_UNSIGNED_NORMALIZED
, /* DataType */
150 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
151 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
152 1, 1, 4 /* BlockWidth/Height,Bytes */
155 MESA_FORMAT_XRGB8888_REV
, /* Name */
156 "MESA_FORMAT_XRGB8888_REV", /* StrName */
157 GL_RGB
, /* BaseFormat */
158 GL_UNSIGNED_NORMALIZED
, /* DataType */
159 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
160 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
161 1, 1, 4 /* BlockWidth/Height,Bytes */
164 MESA_FORMAT_RGB888
, /* Name */
165 "MESA_FORMAT_RGB888", /* StrName */
166 GL_RGB
, /* BaseFormat */
167 GL_UNSIGNED_NORMALIZED
, /* DataType */
168 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
169 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
170 1, 1, 3 /* BlockWidth/Height,Bytes */
173 MESA_FORMAT_BGR888
, /* Name */
174 "MESA_FORMAT_BGR888", /* StrName */
175 GL_RGB
, /* BaseFormat */
176 GL_UNSIGNED_NORMALIZED
, /* DataType */
177 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
178 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
179 1, 1, 3 /* BlockWidth/Height,Bytes */
182 MESA_FORMAT_RGB565
, /* Name */
183 "MESA_FORMAT_RGB565", /* StrName */
184 GL_RGB
, /* BaseFormat */
185 GL_UNSIGNED_NORMALIZED
, /* DataType */
186 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
187 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
188 1, 1, 2 /* BlockWidth/Height,Bytes */
191 MESA_FORMAT_RGB565_REV
, /* Name */
192 "MESA_FORMAT_RGB565_REV", /* StrName */
193 GL_RGB
, /* BaseFormat */
194 GL_UNSIGNED_NORMALIZED
, /* DataType */
195 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
196 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
197 1, 1, 2 /* BlockWidth/Height,Bytes */
200 MESA_FORMAT_ARGB4444
, /* Name */
201 "MESA_FORMAT_ARGB4444", /* StrName */
202 GL_RGBA
, /* BaseFormat */
203 GL_UNSIGNED_NORMALIZED
, /* DataType */
204 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
205 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
206 1, 1, 2 /* BlockWidth/Height,Bytes */
209 MESA_FORMAT_ARGB4444_REV
, /* Name */
210 "MESA_FORMAT_ARGB4444_REV", /* StrName */
211 GL_RGBA
, /* BaseFormat */
212 GL_UNSIGNED_NORMALIZED
, /* DataType */
213 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
214 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
215 1, 1, 2 /* BlockWidth/Height,Bytes */
218 MESA_FORMAT_RGBA5551
, /* Name */
219 "MESA_FORMAT_RGBA5551", /* StrName */
220 GL_RGBA
, /* BaseFormat */
221 GL_UNSIGNED_NORMALIZED
, /* DataType */
222 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
223 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
224 1, 1, 2 /* BlockWidth/Height,Bytes */
227 MESA_FORMAT_ARGB1555
, /* Name */
228 "MESA_FORMAT_ARGB1555", /* StrName */
229 GL_RGBA
, /* BaseFormat */
230 GL_UNSIGNED_NORMALIZED
, /* DataType */
231 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
232 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
233 1, 1, 2 /* BlockWidth/Height,Bytes */
236 MESA_FORMAT_ARGB1555_REV
, /* Name */
237 "MESA_FORMAT_ARGB1555_REV", /* StrName */
238 GL_RGBA
, /* BaseFormat */
239 GL_UNSIGNED_NORMALIZED
, /* DataType */
240 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
241 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
242 1, 1, 2 /* BlockWidth/Height,Bytes */
245 MESA_FORMAT_AL44
, /* Name */
246 "MESA_FORMAT_AL44", /* StrName */
247 GL_LUMINANCE_ALPHA
, /* BaseFormat */
248 GL_UNSIGNED_NORMALIZED
, /* DataType */
249 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
250 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
251 1, 1, 1 /* BlockWidth/Height,Bytes */
254 MESA_FORMAT_AL88
, /* Name */
255 "MESA_FORMAT_AL88", /* StrName */
256 GL_LUMINANCE_ALPHA
, /* BaseFormat */
257 GL_UNSIGNED_NORMALIZED
, /* DataType */
258 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
259 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
260 1, 1, 2 /* BlockWidth/Height,Bytes */
263 MESA_FORMAT_AL88_REV
, /* Name */
264 "MESA_FORMAT_AL88_REV", /* StrName */
265 GL_LUMINANCE_ALPHA
, /* BaseFormat */
266 GL_UNSIGNED_NORMALIZED
, /* DataType */
267 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
268 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
269 1, 1, 2 /* BlockWidth/Height,Bytes */
272 MESA_FORMAT_AL1616
, /* Name */
273 "MESA_FORMAT_AL1616", /* StrName */
274 GL_LUMINANCE_ALPHA
, /* BaseFormat */
275 GL_UNSIGNED_NORMALIZED
, /* DataType */
276 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
277 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
278 1, 1, 4 /* BlockWidth/Height,Bytes */
281 MESA_FORMAT_AL1616_REV
, /* Name */
282 "MESA_FORMAT_AL1616_REV", /* StrName */
283 GL_LUMINANCE_ALPHA
, /* BaseFormat */
284 GL_UNSIGNED_NORMALIZED
, /* DataType */
285 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
286 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
287 1, 1, 4 /* BlockWidth/Height,Bytes */
290 MESA_FORMAT_RGB332
, /* Name */
291 "MESA_FORMAT_RGB332", /* StrName */
292 GL_RGB
, /* BaseFormat */
293 GL_UNSIGNED_NORMALIZED
, /* DataType */
294 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
295 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
296 1, 1, 1 /* BlockWidth/Height,Bytes */
299 MESA_FORMAT_A8
, /* Name */
300 "MESA_FORMAT_A8", /* StrName */
301 GL_ALPHA
, /* BaseFormat */
302 GL_UNSIGNED_NORMALIZED
, /* DataType */
303 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
304 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
305 1, 1, 1 /* BlockWidth/Height,Bytes */
308 MESA_FORMAT_A16
, /* Name */
309 "MESA_FORMAT_A16", /* StrName */
310 GL_ALPHA
, /* BaseFormat */
311 GL_UNSIGNED_NORMALIZED
, /* DataType */
312 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
313 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
314 1, 1, 2 /* BlockWidth/Height,Bytes */
317 MESA_FORMAT_L8
, /* Name */
318 "MESA_FORMAT_L8", /* StrName */
319 GL_LUMINANCE
, /* BaseFormat */
320 GL_UNSIGNED_NORMALIZED
, /* DataType */
321 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
322 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
323 1, 1, 1 /* BlockWidth/Height,Bytes */
326 MESA_FORMAT_L16
, /* Name */
327 "MESA_FORMAT_L16", /* StrName */
328 GL_LUMINANCE
, /* BaseFormat */
329 GL_UNSIGNED_NORMALIZED
, /* DataType */
330 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
331 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
332 1, 1, 2 /* BlockWidth/Height,Bytes */
335 MESA_FORMAT_I8
, /* Name */
336 "MESA_FORMAT_I8", /* StrName */
337 GL_INTENSITY
, /* BaseFormat */
338 GL_UNSIGNED_NORMALIZED
, /* DataType */
339 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
340 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
341 1, 1, 1 /* BlockWidth/Height,Bytes */
344 MESA_FORMAT_I16
, /* Name */
345 "MESA_FORMAT_I16", /* StrName */
346 GL_INTENSITY
, /* BaseFormat */
347 GL_UNSIGNED_NORMALIZED
, /* DataType */
348 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
349 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
350 1, 1, 2 /* BlockWidth/Height,Bytes */
353 MESA_FORMAT_YCBCR
, /* Name */
354 "MESA_FORMAT_YCBCR", /* StrName */
355 GL_YCBCR_MESA
, /* BaseFormat */
356 GL_UNSIGNED_NORMALIZED
, /* DataType */
357 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
358 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
359 1, 1, 2 /* BlockWidth/Height,Bytes */
362 MESA_FORMAT_YCBCR_REV
, /* Name */
363 "MESA_FORMAT_YCBCR_REV", /* StrName */
364 GL_YCBCR_MESA
, /* BaseFormat */
365 GL_UNSIGNED_NORMALIZED
, /* DataType */
366 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
367 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
368 1, 1, 2 /* BlockWidth/Height,Bytes */
374 GL_UNSIGNED_NORMALIZED
,
383 GL_UNSIGNED_NORMALIZED
,
392 GL_UNSIGNED_NORMALIZED
,
401 GL_UNSIGNED_NORMALIZED
,
408 "MESA_FORMAT_RG1616",
410 GL_UNSIGNED_NORMALIZED
,
416 MESA_FORMAT_RG1616_REV
,
417 "MESA_FORMAT_RG1616_REV",
419 GL_UNSIGNED_NORMALIZED
,
425 MESA_FORMAT_ARGB2101010
,
426 "MESA_FORMAT_ARGB2101010",
428 GL_UNSIGNED_NORMALIZED
,
434 MESA_FORMAT_Z24_S8
, /* Name */
435 "MESA_FORMAT_Z24_S8", /* StrName */
436 GL_DEPTH_STENCIL
, /* BaseFormat */
437 GL_UNSIGNED_NORMALIZED
, /* DataType */
438 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
439 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
440 1, 1, 4 /* BlockWidth/Height,Bytes */
443 MESA_FORMAT_S8_Z24
, /* Name */
444 "MESA_FORMAT_S8_Z24", /* StrName */
445 GL_DEPTH_STENCIL
, /* BaseFormat */
446 GL_UNSIGNED_NORMALIZED
, /* DataType */
447 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
448 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
449 1, 1, 4 /* BlockWidth/Height,Bytes */
452 MESA_FORMAT_Z16
, /* Name */
453 "MESA_FORMAT_Z16", /* StrName */
454 GL_DEPTH_COMPONENT
, /* BaseFormat */
455 GL_UNSIGNED_NORMALIZED
, /* DataType */
456 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
457 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
458 1, 1, 2 /* BlockWidth/Height,Bytes */
461 MESA_FORMAT_X8_Z24
, /* Name */
462 "MESA_FORMAT_X8_Z24", /* StrName */
463 GL_DEPTH_COMPONENT
, /* BaseFormat */
464 GL_UNSIGNED_NORMALIZED
, /* DataType */
465 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
466 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
467 1, 1, 4 /* BlockWidth/Height,Bytes */
470 MESA_FORMAT_Z24_X8
, /* Name */
471 "MESA_FORMAT_Z24_X8", /* StrName */
472 GL_DEPTH_COMPONENT
, /* BaseFormat */
473 GL_UNSIGNED_NORMALIZED
, /* DataType */
474 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
475 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
476 1, 1, 4 /* BlockWidth/Height,Bytes */
479 MESA_FORMAT_Z32
, /* Name */
480 "MESA_FORMAT_Z32", /* StrName */
481 GL_DEPTH_COMPONENT
, /* BaseFormat */
482 GL_UNSIGNED_NORMALIZED
, /* DataType */
483 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
484 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
485 1, 1, 4 /* BlockWidth/Height,Bytes */
488 MESA_FORMAT_S8
, /* Name */
489 "MESA_FORMAT_S8", /* StrName */
490 GL_STENCIL_INDEX
, /* BaseFormat */
491 GL_UNSIGNED_INT
, /* DataType */
492 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
493 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
494 1, 1, 1 /* BlockWidth/Height,Bytes */
500 GL_UNSIGNED_NORMALIZED
,
507 "MESA_FORMAT_SRGBA8",
509 GL_UNSIGNED_NORMALIZED
,
516 "MESA_FORMAT_SARGB8",
518 GL_UNSIGNED_NORMALIZED
,
527 GL_UNSIGNED_NORMALIZED
,
536 GL_UNSIGNED_NORMALIZED
,
542 MESA_FORMAT_SRGB_DXT1
, /* Name */
543 "MESA_FORMAT_SRGB_DXT1", /* StrName */
544 GL_RGB
, /* BaseFormat */
545 GL_UNSIGNED_NORMALIZED
, /* DataType */
546 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
547 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
548 4, 4, 8 /* 8 bytes per 4x4 block */
551 MESA_FORMAT_SRGBA_DXT1
,
552 "MESA_FORMAT_SRGBA_DXT1",
554 GL_UNSIGNED_NORMALIZED
,
557 4, 4, 8 /* 8 bytes per 4x4 block */
560 MESA_FORMAT_SRGBA_DXT3
,
561 "MESA_FORMAT_SRGBA_DXT3",
563 GL_UNSIGNED_NORMALIZED
,
566 4, 4, 16 /* 16 bytes per 4x4 block */
569 MESA_FORMAT_SRGBA_DXT5
,
570 "MESA_FORMAT_SRGBA_DXT5",
572 GL_UNSIGNED_NORMALIZED
,
575 4, 4, 16 /* 16 bytes per 4x4 block */
579 MESA_FORMAT_RGB_FXT1
,
580 "MESA_FORMAT_RGB_FXT1",
582 GL_UNSIGNED_NORMALIZED
,
583 4, 4, 4, 0, /* approx Red/Green/BlueBits */
585 8, 4, 16 /* 16 bytes per 8x4 block */
588 MESA_FORMAT_RGBA_FXT1
,
589 "MESA_FORMAT_RGBA_FXT1",
591 GL_UNSIGNED_NORMALIZED
,
592 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
594 8, 4, 16 /* 16 bytes per 8x4 block */
598 MESA_FORMAT_RGB_DXT1
, /* Name */
599 "MESA_FORMAT_RGB_DXT1", /* StrName */
600 GL_RGB
, /* BaseFormat */
601 GL_UNSIGNED_NORMALIZED
, /* DataType */
602 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
603 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
604 4, 4, 8 /* 8 bytes per 4x4 block */
607 MESA_FORMAT_RGBA_DXT1
,
608 "MESA_FORMAT_RGBA_DXT1",
610 GL_UNSIGNED_NORMALIZED
,
613 4, 4, 8 /* 8 bytes per 4x4 block */
616 MESA_FORMAT_RGBA_DXT3
,
617 "MESA_FORMAT_RGBA_DXT3",
619 GL_UNSIGNED_NORMALIZED
,
622 4, 4, 16 /* 16 bytes per 4x4 block */
625 MESA_FORMAT_RGBA_DXT5
,
626 "MESA_FORMAT_RGBA_DXT5",
628 GL_UNSIGNED_NORMALIZED
,
631 4, 4, 16 /* 16 bytes per 4x4 block */
634 MESA_FORMAT_RGBA_FLOAT32
,
635 "MESA_FORMAT_RGBA_FLOAT32",
643 MESA_FORMAT_RGBA_FLOAT16
,
644 "MESA_FORMAT_RGBA_FLOAT16",
652 MESA_FORMAT_RGB_FLOAT32
,
653 "MESA_FORMAT_RGB_FLOAT32",
661 MESA_FORMAT_RGB_FLOAT16
,
662 "MESA_FORMAT_RGB_FLOAT16",
670 MESA_FORMAT_ALPHA_FLOAT32
,
671 "MESA_FORMAT_ALPHA_FLOAT32",
679 MESA_FORMAT_ALPHA_FLOAT16
,
680 "MESA_FORMAT_ALPHA_FLOAT16",
688 MESA_FORMAT_LUMINANCE_FLOAT32
,
689 "MESA_FORMAT_LUMINANCE_FLOAT32",
697 MESA_FORMAT_LUMINANCE_FLOAT16
,
698 "MESA_FORMAT_LUMINANCE_FLOAT16",
706 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
,
707 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
715 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
,
716 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
724 MESA_FORMAT_INTENSITY_FLOAT32
,
725 "MESA_FORMAT_INTENSITY_FLOAT32",
733 MESA_FORMAT_INTENSITY_FLOAT16
,
734 "MESA_FORMAT_INTENSITY_FLOAT16",
742 MESA_FORMAT_R_FLOAT32
,
743 "MESA_FORMAT_R_FLOAT32",
751 MESA_FORMAT_R_FLOAT16
,
752 "MESA_FORMAT_R_FLOAT16",
760 MESA_FORMAT_RG_FLOAT32
,
761 "MESA_FORMAT_RG_FLOAT32",
769 MESA_FORMAT_RG_FLOAT16
,
770 "MESA_FORMAT_RG_FLOAT16",
778 /* unnormalized signed int formats */
779 /* unnormalized unsigned int formats */
781 MESA_FORMAT_ALPHA_UINT8
,
782 "MESA_FORMAT_ALPHA_UINT8",
790 MESA_FORMAT_ALPHA_UINT16
,
791 "MESA_FORMAT_ALPHA_UINT16",
799 MESA_FORMAT_ALPHA_UINT32
,
800 "MESA_FORMAT_ALPHA_UINT32",
808 MESA_FORMAT_ALPHA_INT8
,
809 "MESA_FORMAT_ALPHA_INT8",
817 MESA_FORMAT_ALPHA_INT16
,
818 "MESA_FORMAT_ALPHA_INT16",
826 MESA_FORMAT_ALPHA_INT32
,
827 "MESA_FORMAT_ALPHA_INT32",
835 MESA_FORMAT_INTENSITY_UINT8
,
836 "MESA_FORMAT_INTENSITY_UINT8",
844 MESA_FORMAT_INTENSITY_UINT16
,
845 "MESA_FORMAT_INTENSITY_UINT16",
853 MESA_FORMAT_INTENSITY_UINT32
,
854 "MESA_FORMAT_INTENSITY_UINT32",
862 MESA_FORMAT_INTENSITY_INT8
,
863 "MESA_FORMAT_INTENSITY_INT8",
871 MESA_FORMAT_INTENSITY_INT16
,
872 "MESA_FORMAT_INTENSITY_INT16",
880 MESA_FORMAT_INTENSITY_INT32
,
881 "MESA_FORMAT_INTENSITY_INT32",
889 MESA_FORMAT_LUMINANCE_UINT8
,
890 "MESA_FORMAT_LUMINANCE_UINT8",
898 MESA_FORMAT_LUMINANCE_UINT16
,
899 "MESA_FORMAT_LUMINANCE_UINT16",
907 MESA_FORMAT_LUMINANCE_UINT32
,
908 "MESA_FORMAT_LUMINANCE_UINT32",
916 MESA_FORMAT_LUMINANCE_INT8
,
917 "MESA_FORMAT_LUMINANCE_INT8",
925 MESA_FORMAT_LUMINANCE_INT16
,
926 "MESA_FORMAT_LUMINANCE_INT16",
934 MESA_FORMAT_LUMINANCE_INT32
,
935 "MESA_FORMAT_LUMINANCE_INT32",
943 MESA_FORMAT_LUMINANCE_ALPHA_UINT8
,
944 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
952 MESA_FORMAT_LUMINANCE_ALPHA_UINT16
,
953 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
961 MESA_FORMAT_LUMINANCE_ALPHA_UINT32
,
962 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
970 MESA_FORMAT_LUMINANCE_ALPHA_INT8
,
971 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
979 MESA_FORMAT_LUMINANCE_ALPHA_INT16
,
980 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
988 MESA_FORMAT_LUMINANCE_ALPHA_INT32
,
989 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
999 "MESA_FORMAT_R_INT8",
1007 MESA_FORMAT_RG_INT8
,
1008 "MESA_FORMAT_RG_INT8",
1016 MESA_FORMAT_RGB_INT8
,
1017 "MESA_FORMAT_RGB_INT8",
1025 MESA_FORMAT_RGBA_INT8
,
1026 "MESA_FORMAT_RGBA_INT8",
1034 MESA_FORMAT_R_INT16
,
1035 "MESA_FORMAT_R_INT16",
1043 MESA_FORMAT_RG_INT16
,
1044 "MESA_FORMAT_RG_INT16",
1052 MESA_FORMAT_RGB_INT16
,
1053 "MESA_FORMAT_RGB_INT16",
1061 MESA_FORMAT_RGBA_INT16
,
1062 "MESA_FORMAT_RGBA_INT16",
1070 MESA_FORMAT_R_INT32
,
1071 "MESA_FORMAT_R_INT32",
1079 MESA_FORMAT_RG_INT32
,
1080 "MESA_FORMAT_RG_INT32",
1088 MESA_FORMAT_RGB_INT32
,
1089 "MESA_FORMAT_RGB_INT32",
1097 MESA_FORMAT_RGBA_INT32
,
1098 "MESA_FORMAT_RGBA_INT32",
1106 MESA_FORMAT_R_UINT8
,
1107 "MESA_FORMAT_R_UINT8",
1115 MESA_FORMAT_RG_UINT8
,
1116 "MESA_FORMAT_RG_UINT8",
1124 MESA_FORMAT_RGB_UINT8
,
1125 "MESA_FORMAT_RGB_UINT8",
1133 MESA_FORMAT_RGBA_UINT8
,
1134 "MESA_FORMAT_RGBA_UINT8",
1142 MESA_FORMAT_R_UINT16
,
1143 "MESA_FORMAT_R_UINT16",
1151 MESA_FORMAT_RG_UINT16
,
1152 "MESA_FORMAT_RG_UINT16",
1160 MESA_FORMAT_RGB_UINT16
,
1161 "MESA_FORMAT_RGB_UINT16",
1169 MESA_FORMAT_RGBA_UINT16
,
1170 "MESA_FORMAT_RGBA_UINT16",
1178 MESA_FORMAT_R_UINT32
,
1179 "MESA_FORMAT_R_UINT32",
1187 MESA_FORMAT_RG_UINT32
,
1188 "MESA_FORMAT_RG_UINT32",
1196 MESA_FORMAT_RGB_UINT32
,
1197 "MESA_FORMAT_RGB_UINT32",
1205 MESA_FORMAT_RGBA_UINT32
,
1206 "MESA_FORMAT_RGBA_UINT32",
1217 "MESA_FORMAT_DUDV8",
1219 GL_SIGNED_NORMALIZED
,
1225 /* Signed 8 bits / channel */
1227 MESA_FORMAT_SIGNED_R8
, /* Name */
1228 "MESA_FORMAT_SIGNED_R8", /* StrName */
1229 GL_RED
, /* BaseFormat */
1230 GL_SIGNED_NORMALIZED
, /* DataType */
1231 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1232 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1233 1, 1, 1 /* BlockWidth/Height,Bytes */
1236 MESA_FORMAT_SIGNED_RG88_REV
,
1237 "MESA_FORMAT_SIGNED_RG88_REV",
1239 GL_SIGNED_NORMALIZED
,
1245 MESA_FORMAT_SIGNED_RGBX8888
,
1246 "MESA_FORMAT_SIGNED_RGBX8888",
1248 GL_SIGNED_NORMALIZED
,
1251 1, 1, 4 /* 4 bpp, but no alpha */
1254 MESA_FORMAT_SIGNED_RGBA8888
,
1255 "MESA_FORMAT_SIGNED_RGBA8888",
1257 GL_SIGNED_NORMALIZED
,
1263 MESA_FORMAT_SIGNED_RGBA8888_REV
,
1264 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1266 GL_SIGNED_NORMALIZED
,
1272 /* Signed 16 bits / channel */
1274 MESA_FORMAT_SIGNED_R16
,
1275 "MESA_FORMAT_SIGNED_R16",
1277 GL_SIGNED_NORMALIZED
,
1283 MESA_FORMAT_SIGNED_GR1616
,
1284 "MESA_FORMAT_SIGNED_GR1616",
1286 GL_SIGNED_NORMALIZED
,
1292 MESA_FORMAT_SIGNED_RGB_16
,
1293 "MESA_FORMAT_SIGNED_RGB_16",
1295 GL_SIGNED_NORMALIZED
,
1301 MESA_FORMAT_SIGNED_RGBA_16
,
1302 "MESA_FORMAT_SIGNED_RGBA_16",
1304 GL_SIGNED_NORMALIZED
,
1310 MESA_FORMAT_RGBA_16
,
1311 "MESA_FORMAT_RGBA_16",
1313 GL_UNSIGNED_NORMALIZED
,
1319 MESA_FORMAT_RED_RGTC1
,
1320 "MESA_FORMAT_RED_RGTC1",
1322 GL_UNSIGNED_NORMALIZED
,
1325 4, 4, 8 /* 8 bytes per 4x4 block */
1328 MESA_FORMAT_SIGNED_RED_RGTC1
,
1329 "MESA_FORMAT_SIGNED_RED_RGTC1",
1331 GL_SIGNED_NORMALIZED
,
1334 4, 4, 8 /* 8 bytes per 4x4 block */
1337 MESA_FORMAT_RG_RGTC2
,
1338 "MESA_FORMAT_RG_RGTC2",
1340 GL_UNSIGNED_NORMALIZED
,
1343 4, 4, 16 /* 16 bytes per 4x4 block */
1346 MESA_FORMAT_SIGNED_RG_RGTC2
,
1347 "MESA_FORMAT_SIGNED_RG_RGTC2",
1349 GL_SIGNED_NORMALIZED
,
1352 4, 4, 16 /* 16 bytes per 4x4 block */
1355 MESA_FORMAT_L_LATC1
,
1356 "MESA_FORMAT_L_LATC1",
1358 GL_UNSIGNED_NORMALIZED
,
1361 4, 4, 8 /* 8 bytes per 4x4 block */
1364 MESA_FORMAT_SIGNED_L_LATC1
,
1365 "MESA_FORMAT_SIGNED_L_LATC1",
1367 GL_SIGNED_NORMALIZED
,
1370 4, 4, 8 /* 8 bytes per 4x4 block */
1373 MESA_FORMAT_LA_LATC2
,
1374 "MESA_FORMAT_LA_LATC2",
1376 GL_UNSIGNED_NORMALIZED
,
1379 4, 4, 16 /* 16 bytes per 4x4 block */
1382 MESA_FORMAT_SIGNED_LA_LATC2
,
1383 "MESA_FORMAT_SIGNED_LA_LATC2",
1385 GL_SIGNED_NORMALIZED
,
1388 4, 4, 16 /* 16 bytes per 4x4 block */
1392 MESA_FORMAT_ETC1_RGB8
,
1393 "MESA_FORMAT_ETC1_RGB8",
1395 GL_UNSIGNED_NORMALIZED
,
1398 4, 4, 8 /* 8 bytes per 4x4 block */
1401 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1403 MESA_FORMAT_SIGNED_A8
,
1404 "MESA_FORMAT_SIGNED_A8",
1406 GL_SIGNED_NORMALIZED
,
1412 MESA_FORMAT_SIGNED_L8
,
1413 "MESA_FORMAT_SIGNED_L8",
1415 GL_SIGNED_NORMALIZED
,
1421 MESA_FORMAT_SIGNED_AL88
,
1422 "MESA_FORMAT_SIGNED_AL88",
1424 GL_SIGNED_NORMALIZED
,
1430 MESA_FORMAT_SIGNED_I8
,
1431 "MESA_FORMAT_SIGNED_I8",
1433 GL_SIGNED_NORMALIZED
,
1439 MESA_FORMAT_SIGNED_A16
,
1440 "MESA_FORMAT_SIGNED_A16",
1442 GL_SIGNED_NORMALIZED
,
1448 MESA_FORMAT_SIGNED_L16
,
1449 "MESA_FORMAT_SIGNED_L16",
1451 GL_SIGNED_NORMALIZED
,
1457 MESA_FORMAT_SIGNED_AL1616
,
1458 "MESA_FORMAT_SIGNED_AL1616",
1460 GL_SIGNED_NORMALIZED
,
1466 MESA_FORMAT_SIGNED_I16
,
1467 "MESA_FORMAT_SIGNED_I16",
1469 GL_SIGNED_NORMALIZED
,
1475 MESA_FORMAT_RGB9_E5_FLOAT
,
1476 "MESA_FORMAT_RGB9_E5",
1484 MESA_FORMAT_R11_G11_B10_FLOAT
,
1485 "MESA_FORMAT_R11_G11_B10_FLOAT",
1492 /* ARB_depth_buffer_float */
1494 MESA_FORMAT_Z32_FLOAT
, /* Name */
1495 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1496 GL_DEPTH_COMPONENT
, /* BaseFormat */
1497 GL_FLOAT
, /* DataType */
1498 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1499 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1500 1, 1, 4 /* BlockWidth/Height,Bytes */
1503 MESA_FORMAT_Z32_FLOAT_X24S8
, /* Name */
1504 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1505 GL_DEPTH_STENCIL
, /* BaseFormat */
1506 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1507 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1509 GL_FLOAT
, /* DataType */
1510 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1511 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1512 1, 1, 8 /* BlockWidth/Height,Bytes */
1515 MESA_FORMAT_ARGB2101010_UINT
,
1516 "MESA_FORMAT_ARGB2101010_UINT",
1524 MESA_FORMAT_ABGR2101010_UINT
,
1525 "MESA_FORMAT_ABGR2101010_UINT",
1536 static const struct gl_format_info
*
1537 _mesa_get_format_info(gl_format format
)
1539 const struct gl_format_info
*info
= &format_info
[format
];
1540 assert(info
->Name
== format
);
1545 /** Return string name of format (for debugging) */
1547 _mesa_get_format_name(gl_format format
)
1549 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1550 return info
->StrName
;
1556 * Return bytes needed to store a block of pixels in the given format.
1557 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1558 * a block may be 4x4 or 8x4, etc.
1560 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1563 _mesa_get_format_bytes(gl_format format
)
1565 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1566 ASSERT(info
->BytesPerBlock
);
1567 ASSERT(info
->BytesPerBlock
<= MAX_PIXEL_BYTES
||
1568 _mesa_is_format_compressed(format
));
1569 return info
->BytesPerBlock
;
1574 * Return bits per component for the given format.
1575 * \param format one of MESA_FORMAT_x
1576 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1579 _mesa_get_format_bits(gl_format format
, GLenum pname
)
1581 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1585 case GL_TEXTURE_RED_SIZE
:
1586 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1587 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1588 return info
->RedBits
;
1590 case GL_TEXTURE_GREEN_SIZE
:
1591 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1592 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1593 return info
->GreenBits
;
1595 case GL_TEXTURE_BLUE_SIZE
:
1596 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1597 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1598 return info
->BlueBits
;
1600 case GL_TEXTURE_ALPHA_SIZE
:
1601 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1602 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1603 return info
->AlphaBits
;
1604 case GL_TEXTURE_INTENSITY_SIZE
:
1605 return info
->IntensityBits
;
1606 case GL_TEXTURE_LUMINANCE_SIZE
:
1607 return info
->LuminanceBits
;
1609 return info
->IndexBits
;
1611 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1612 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1613 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1614 return info
->DepthBits
;
1615 case GL_STENCIL_BITS
:
1616 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1617 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1618 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1619 return info
->StencilBits
;
1621 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
1628 _mesa_get_format_max_bits(gl_format format
)
1630 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1631 GLuint max
= MAX2(info
->RedBits
, info
->GreenBits
);
1632 max
= MAX2(max
, info
->BlueBits
);
1633 max
= MAX2(max
, info
->AlphaBits
);
1634 max
= MAX2(max
, info
->LuminanceBits
);
1635 max
= MAX2(max
, info
->IntensityBits
);
1636 max
= MAX2(max
, info
->DepthBits
);
1637 max
= MAX2(max
, info
->StencilBits
);
1643 * Return the data type (or more specifically, the data representation)
1644 * for the given format.
1645 * The return value will be one of:
1646 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1647 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1648 * GL_UNSIGNED_INT = an ordinary unsigned integer
1649 * GL_INT = an ordinary signed integer
1650 * GL_FLOAT = an ordinary float
1653 _mesa_get_format_datatype(gl_format format
)
1655 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1656 return info
->DataType
;
1661 * Return the basic format for the given type. The result will be one of
1662 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1663 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1666 _mesa_get_format_base_format(gl_format format
)
1668 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1669 return info
->BaseFormat
;
1674 * Return the block size (in pixels) for the given format. Normally
1675 * the block size is 1x1. But compressed formats will have block sizes
1676 * of 4x4 or 8x4 pixels, etc.
1677 * \param bw returns block width in pixels
1678 * \param bh returns block height in pixels
1681 _mesa_get_format_block_size(gl_format format
, GLuint
*bw
, GLuint
*bh
)
1683 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1684 *bw
= info
->BlockWidth
;
1685 *bh
= info
->BlockHeight
;
1689 /** Is the given format a compressed format? */
1691 _mesa_is_format_compressed(gl_format format
)
1693 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1694 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
1699 * Determine if the given format represents a packed depth/stencil buffer.
1702 _mesa_is_format_packed_depth_stencil(gl_format format
)
1704 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1706 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
1711 * Is the given format a signed/unsigned integer color format?
1714 _mesa_is_format_integer_color(gl_format format
)
1716 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1717 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
1718 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
1719 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
1720 info
->BaseFormat
!= GL_STENCIL_INDEX
;
1725 * Is the given format an unsigned integer format?
1728 _mesa_is_format_unsigned(gl_format format
)
1730 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1731 return _mesa_is_type_unsigned(info
->DataType
);
1736 * Return color encoding for given format.
1737 * \return GL_LINEAR or GL_SRGB
1740 _mesa_get_format_color_encoding(gl_format format
)
1742 /* XXX this info should be encoded in gl_format_info */
1744 case MESA_FORMAT_SRGB8
:
1745 case MESA_FORMAT_SRGBA8
:
1746 case MESA_FORMAT_SARGB8
:
1747 case MESA_FORMAT_SL8
:
1748 case MESA_FORMAT_SLA8
:
1749 case MESA_FORMAT_SRGB_DXT1
:
1750 case MESA_FORMAT_SRGBA_DXT1
:
1751 case MESA_FORMAT_SRGBA_DXT3
:
1752 case MESA_FORMAT_SRGBA_DXT5
:
1761 * For an sRGB format, return the corresponding linear color space format.
1762 * For non-sRGB formats, return the format as-is.
1765 _mesa_get_srgb_format_linear(gl_format format
)
1768 case MESA_FORMAT_SRGB8
:
1769 format
= MESA_FORMAT_RGB888
;
1771 case MESA_FORMAT_SRGBA8
:
1772 format
= MESA_FORMAT_RGBA8888
;
1774 case MESA_FORMAT_SARGB8
:
1775 format
= MESA_FORMAT_ARGB8888
;
1777 case MESA_FORMAT_SL8
:
1778 format
= MESA_FORMAT_L8
;
1780 case MESA_FORMAT_SLA8
:
1781 format
= MESA_FORMAT_AL88
;
1783 case MESA_FORMAT_SRGB_DXT1
:
1784 format
= MESA_FORMAT_RGB_DXT1
;
1786 case MESA_FORMAT_SRGBA_DXT1
:
1787 format
= MESA_FORMAT_RGBA_DXT1
;
1789 case MESA_FORMAT_SRGBA_DXT3
:
1790 format
= MESA_FORMAT_RGBA_DXT3
;
1792 case MESA_FORMAT_SRGBA_DXT5
:
1793 format
= MESA_FORMAT_RGBA_DXT5
;
1803 * If the given format is a compressed format, return a corresponding
1804 * uncompressed format.
1807 _mesa_get_uncompressed_format(gl_format format
)
1810 case MESA_FORMAT_RGB_FXT1
:
1811 return MESA_FORMAT_RGB888
;
1812 case MESA_FORMAT_RGBA_FXT1
:
1813 return MESA_FORMAT_RGBA8888
;
1814 case MESA_FORMAT_RGB_DXT1
:
1815 case MESA_FORMAT_SRGB_DXT1
:
1816 return MESA_FORMAT_RGB888
;
1817 case MESA_FORMAT_RGBA_DXT1
:
1818 case MESA_FORMAT_SRGBA_DXT1
:
1819 return MESA_FORMAT_RGBA8888
;
1820 case MESA_FORMAT_RGBA_DXT3
:
1821 case MESA_FORMAT_SRGBA_DXT3
:
1822 return MESA_FORMAT_RGBA8888
;
1823 case MESA_FORMAT_RGBA_DXT5
:
1824 case MESA_FORMAT_SRGBA_DXT5
:
1825 return MESA_FORMAT_RGBA8888
;
1826 case MESA_FORMAT_RED_RGTC1
:
1827 return MESA_FORMAT_R8
;
1828 case MESA_FORMAT_SIGNED_RED_RGTC1
:
1829 return MESA_FORMAT_SIGNED_R8
;
1830 case MESA_FORMAT_RG_RGTC2
:
1831 return MESA_FORMAT_GR88
;
1832 case MESA_FORMAT_SIGNED_RG_RGTC2
:
1833 return MESA_FORMAT_SIGNED_RG88_REV
;
1834 case MESA_FORMAT_L_LATC1
:
1835 return MESA_FORMAT_L8
;
1836 case MESA_FORMAT_SIGNED_L_LATC1
:
1837 return MESA_FORMAT_SIGNED_L8
;
1838 case MESA_FORMAT_LA_LATC2
:
1839 return MESA_FORMAT_AL88
;
1840 case MESA_FORMAT_SIGNED_LA_LATC2
:
1841 return MESA_FORMAT_SIGNED_AL88
;
1842 case MESA_FORMAT_ETC1_RGB8
:
1843 return MESA_FORMAT_RGB888
;
1846 assert(!_mesa_is_format_compressed(format
));
1854 _mesa_format_num_components(gl_format format
)
1856 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1857 return ((info
->RedBits
> 0) +
1858 (info
->GreenBits
> 0) +
1859 (info
->BlueBits
> 0) +
1860 (info
->AlphaBits
> 0) +
1861 (info
->LuminanceBits
> 0) +
1862 (info
->IntensityBits
> 0) +
1863 (info
->DepthBits
> 0) +
1864 (info
->StencilBits
> 0));
1869 * Return number of bytes needed to store an image of the given size
1870 * in the given format.
1873 _mesa_format_image_size(gl_format format
, GLsizei width
,
1874 GLsizei height
, GLsizei depth
)
1876 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1877 /* Strictly speaking, a conditional isn't needed here */
1878 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1879 /* compressed format (2D only for now) */
1880 const GLuint bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1881 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1882 const GLuint hblocks
= (height
+ bh
- 1) / bh
;
1883 const GLuint sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1887 /* non-compressed */
1888 const GLuint sz
= width
* height
* depth
* info
->BytesPerBlock
;
1895 * Same as _mesa_format_image_size() but returns a 64-bit value to
1896 * accomodate very large textures.
1899 _mesa_format_image_size64(gl_format format
, GLsizei width
,
1900 GLsizei height
, GLsizei depth
)
1902 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1903 /* Strictly speaking, a conditional isn't needed here */
1904 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1905 /* compressed format (2D only for now) */
1906 const uint64_t bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1907 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
1908 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
1909 const uint64_t sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1913 /* non-compressed */
1914 const uint64_t sz
= ((uint64_t) width
*
1917 info
->BytesPerBlock
);
1925 _mesa_format_row_stride(gl_format format
, GLsizei width
)
1927 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1928 /* Strictly speaking, a conditional isn't needed here */
1929 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1930 /* compressed format */
1931 const GLuint bw
= info
->BlockWidth
;
1932 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1933 const GLint stride
= wblocks
* info
->BytesPerBlock
;
1937 const GLint stride
= width
* info
->BytesPerBlock
;
1944 * Debug/test: check that all formats are handled in the
1945 * _mesa_format_to_type_and_comps() function. When new pixel formats
1946 * are added to Mesa, that function needs to be updated.
1947 * This is a no-op after the first call.
1950 check_format_to_type_and_comps(void)
1954 for (f
= MESA_FORMAT_NONE
+ 1; f
< MESA_FORMAT_COUNT
; f
++) {
1955 GLenum datatype
= 0;
1957 /* This function will emit a problem/warning if the format is
1960 _mesa_format_to_type_and_comps(f
, &datatype
, &comps
);
1966 * Do sanity checking of the format info table.
1969 _mesa_test_formats(void)
1973 STATIC_ASSERT(Elements(format_info
) == MESA_FORMAT_COUNT
);
1975 for (i
= 0; i
< MESA_FORMAT_COUNT
; i
++) {
1976 const struct gl_format_info
*info
= _mesa_get_format_info(i
);
1979 assert(info
->Name
== i
);
1981 if (info
->Name
== MESA_FORMAT_NONE
)
1984 if (info
->BlockWidth
== 1 && info
->BlockHeight
== 1) {
1985 if (info
->RedBits
> 0) {
1986 GLuint t
= info
->RedBits
+ info
->GreenBits
1987 + info
->BlueBits
+ info
->AlphaBits
;
1988 assert(t
/ 8 <= info
->BytesPerBlock
);
1993 assert(info
->DataType
== GL_UNSIGNED_NORMALIZED
||
1994 info
->DataType
== GL_SIGNED_NORMALIZED
||
1995 info
->DataType
== GL_UNSIGNED_INT
||
1996 info
->DataType
== GL_INT
||
1997 info
->DataType
== GL_FLOAT
||
1998 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1999 info
->DataType
== GL_NONE
);
2001 if (info
->BaseFormat
== GL_RGB
) {
2002 assert(info
->RedBits
> 0);
2003 assert(info
->GreenBits
> 0);
2004 assert(info
->BlueBits
> 0);
2005 assert(info
->AlphaBits
== 0);
2006 assert(info
->LuminanceBits
== 0);
2007 assert(info
->IntensityBits
== 0);
2009 else if (info
->BaseFormat
== GL_RGBA
) {
2010 assert(info
->RedBits
> 0);
2011 assert(info
->GreenBits
> 0);
2012 assert(info
->BlueBits
> 0);
2013 assert(info
->AlphaBits
> 0);
2014 assert(info
->LuminanceBits
== 0);
2015 assert(info
->IntensityBits
== 0);
2017 else if (info
->BaseFormat
== GL_RG
) {
2018 assert(info
->RedBits
> 0);
2019 assert(info
->GreenBits
> 0);
2020 assert(info
->BlueBits
== 0);
2021 assert(info
->AlphaBits
== 0);
2022 assert(info
->LuminanceBits
== 0);
2023 assert(info
->IntensityBits
== 0);
2025 else if (info
->BaseFormat
== GL_RED
) {
2026 assert(info
->RedBits
> 0);
2027 assert(info
->GreenBits
== 0);
2028 assert(info
->BlueBits
== 0);
2029 assert(info
->AlphaBits
== 0);
2030 assert(info
->LuminanceBits
== 0);
2031 assert(info
->IntensityBits
== 0);
2033 else if (info
->BaseFormat
== GL_LUMINANCE
) {
2034 assert(info
->RedBits
== 0);
2035 assert(info
->GreenBits
== 0);
2036 assert(info
->BlueBits
== 0);
2037 assert(info
->AlphaBits
== 0);
2038 assert(info
->LuminanceBits
> 0);
2039 assert(info
->IntensityBits
== 0);
2041 else if (info
->BaseFormat
== GL_INTENSITY
) {
2042 assert(info
->RedBits
== 0);
2043 assert(info
->GreenBits
== 0);
2044 assert(info
->BlueBits
== 0);
2045 assert(info
->AlphaBits
== 0);
2046 assert(info
->LuminanceBits
== 0);
2047 assert(info
->IntensityBits
> 0);
2051 check_format_to_type_and_comps();
2057 * Return datatype and number of components per texel for the given gl_format.
2058 * Only used for mipmap generation code.
2061 _mesa_format_to_type_and_comps(gl_format format
,
2062 GLenum
*datatype
, GLuint
*comps
)
2065 case MESA_FORMAT_RGBA8888
:
2066 case MESA_FORMAT_RGBA8888_REV
:
2067 case MESA_FORMAT_ARGB8888
:
2068 case MESA_FORMAT_ARGB8888_REV
:
2069 case MESA_FORMAT_RGBX8888
:
2070 case MESA_FORMAT_RGBX8888_REV
:
2071 case MESA_FORMAT_XRGB8888
:
2072 case MESA_FORMAT_XRGB8888_REV
:
2073 *datatype
= GL_UNSIGNED_BYTE
;
2076 case MESA_FORMAT_RGB888
:
2077 case MESA_FORMAT_BGR888
:
2078 *datatype
= GL_UNSIGNED_BYTE
;
2081 case MESA_FORMAT_RGB565
:
2082 case MESA_FORMAT_RGB565_REV
:
2083 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
2087 case MESA_FORMAT_ARGB4444
:
2088 case MESA_FORMAT_ARGB4444_REV
:
2089 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
2093 case MESA_FORMAT_ARGB1555
:
2094 case MESA_FORMAT_ARGB1555_REV
:
2095 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2099 case MESA_FORMAT_ARGB2101010
:
2100 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2104 case MESA_FORMAT_RGBA5551
:
2105 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
2109 case MESA_FORMAT_AL44
:
2110 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
2114 case MESA_FORMAT_AL88
:
2115 case MESA_FORMAT_AL88_REV
:
2116 case MESA_FORMAT_GR88
:
2117 case MESA_FORMAT_RG88
:
2118 *datatype
= GL_UNSIGNED_BYTE
;
2122 case MESA_FORMAT_AL1616
:
2123 case MESA_FORMAT_AL1616_REV
:
2124 case MESA_FORMAT_RG1616
:
2125 case MESA_FORMAT_RG1616_REV
:
2126 *datatype
= GL_UNSIGNED_SHORT
;
2130 case MESA_FORMAT_R16
:
2131 case MESA_FORMAT_A16
:
2132 case MESA_FORMAT_L16
:
2133 case MESA_FORMAT_I16
:
2134 *datatype
= GL_UNSIGNED_SHORT
;
2138 case MESA_FORMAT_RGB332
:
2139 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
2143 case MESA_FORMAT_A8
:
2144 case MESA_FORMAT_L8
:
2145 case MESA_FORMAT_I8
:
2146 case MESA_FORMAT_R8
:
2147 case MESA_FORMAT_S8
:
2148 *datatype
= GL_UNSIGNED_BYTE
;
2152 case MESA_FORMAT_YCBCR
:
2153 case MESA_FORMAT_YCBCR_REV
:
2154 *datatype
= GL_UNSIGNED_SHORT
;
2158 case MESA_FORMAT_Z24_S8
:
2159 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
2163 case MESA_FORMAT_S8_Z24
:
2164 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
2168 case MESA_FORMAT_Z16
:
2169 *datatype
= GL_UNSIGNED_SHORT
;
2173 case MESA_FORMAT_X8_Z24
:
2174 *datatype
= GL_UNSIGNED_INT
;
2178 case MESA_FORMAT_Z24_X8
:
2179 *datatype
= GL_UNSIGNED_INT
;
2183 case MESA_FORMAT_Z32
:
2184 *datatype
= GL_UNSIGNED_INT
;
2188 case MESA_FORMAT_Z32_FLOAT
:
2189 *datatype
= GL_FLOAT
;
2193 case MESA_FORMAT_Z32_FLOAT_X24S8
:
2194 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
2198 case MESA_FORMAT_DUDV8
:
2199 *datatype
= GL_BYTE
;
2203 case MESA_FORMAT_SIGNED_R8
:
2204 case MESA_FORMAT_SIGNED_A8
:
2205 case MESA_FORMAT_SIGNED_L8
:
2206 case MESA_FORMAT_SIGNED_I8
:
2207 *datatype
= GL_BYTE
;
2210 case MESA_FORMAT_SIGNED_RG88_REV
:
2211 case MESA_FORMAT_SIGNED_AL88
:
2212 *datatype
= GL_BYTE
;
2215 case MESA_FORMAT_SIGNED_RGBA8888
:
2216 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2217 case MESA_FORMAT_SIGNED_RGBX8888
:
2218 *datatype
= GL_BYTE
;
2222 case MESA_FORMAT_RGBA_16
:
2223 *datatype
= GL_UNSIGNED_SHORT
;
2227 case MESA_FORMAT_SIGNED_R16
:
2228 case MESA_FORMAT_SIGNED_A16
:
2229 case MESA_FORMAT_SIGNED_L16
:
2230 case MESA_FORMAT_SIGNED_I16
:
2231 *datatype
= GL_SHORT
;
2234 case MESA_FORMAT_SIGNED_GR1616
:
2235 case MESA_FORMAT_SIGNED_AL1616
:
2236 *datatype
= GL_SHORT
;
2239 case MESA_FORMAT_SIGNED_RGB_16
:
2240 *datatype
= GL_SHORT
;
2243 case MESA_FORMAT_SIGNED_RGBA_16
:
2244 *datatype
= GL_SHORT
;
2248 #if FEATURE_EXT_texture_sRGB
2249 case MESA_FORMAT_SRGB8
:
2250 *datatype
= GL_UNSIGNED_BYTE
;
2253 case MESA_FORMAT_SRGBA8
:
2254 case MESA_FORMAT_SARGB8
:
2255 *datatype
= GL_UNSIGNED_BYTE
;
2258 case MESA_FORMAT_SL8
:
2259 *datatype
= GL_UNSIGNED_BYTE
;
2262 case MESA_FORMAT_SLA8
:
2263 *datatype
= GL_UNSIGNED_BYTE
;
2268 case MESA_FORMAT_RGB_FXT1
:
2269 case MESA_FORMAT_RGBA_FXT1
:
2270 case MESA_FORMAT_RGB_DXT1
:
2271 case MESA_FORMAT_RGBA_DXT1
:
2272 case MESA_FORMAT_RGBA_DXT3
:
2273 case MESA_FORMAT_RGBA_DXT5
:
2274 #if FEATURE_EXT_texture_sRGB
2275 case MESA_FORMAT_SRGB_DXT1
:
2276 case MESA_FORMAT_SRGBA_DXT1
:
2277 case MESA_FORMAT_SRGBA_DXT3
:
2278 case MESA_FORMAT_SRGBA_DXT5
:
2280 case MESA_FORMAT_RED_RGTC1
:
2281 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2282 case MESA_FORMAT_RG_RGTC2
:
2283 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2284 case MESA_FORMAT_L_LATC1
:
2285 case MESA_FORMAT_SIGNED_L_LATC1
:
2286 case MESA_FORMAT_LA_LATC2
:
2287 case MESA_FORMAT_SIGNED_LA_LATC2
:
2288 case MESA_FORMAT_ETC1_RGB8
:
2289 /* XXX generate error instead? */
2290 *datatype
= GL_UNSIGNED_BYTE
;
2294 case MESA_FORMAT_RGBA_FLOAT32
:
2295 *datatype
= GL_FLOAT
;
2298 case MESA_FORMAT_RGBA_FLOAT16
:
2299 *datatype
= GL_HALF_FLOAT_ARB
;
2302 case MESA_FORMAT_RGB_FLOAT32
:
2303 *datatype
= GL_FLOAT
;
2306 case MESA_FORMAT_RGB_FLOAT16
:
2307 *datatype
= GL_HALF_FLOAT_ARB
;
2310 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2311 case MESA_FORMAT_RG_FLOAT32
:
2312 *datatype
= GL_FLOAT
;
2315 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2316 case MESA_FORMAT_RG_FLOAT16
:
2317 *datatype
= GL_HALF_FLOAT_ARB
;
2320 case MESA_FORMAT_ALPHA_FLOAT32
:
2321 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2322 case MESA_FORMAT_INTENSITY_FLOAT32
:
2323 case MESA_FORMAT_R_FLOAT32
:
2324 *datatype
= GL_FLOAT
;
2327 case MESA_FORMAT_ALPHA_FLOAT16
:
2328 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2329 case MESA_FORMAT_INTENSITY_FLOAT16
:
2330 case MESA_FORMAT_R_FLOAT16
:
2331 *datatype
= GL_HALF_FLOAT_ARB
;
2335 case MESA_FORMAT_ALPHA_UINT8
:
2336 case MESA_FORMAT_LUMINANCE_UINT8
:
2337 case MESA_FORMAT_INTENSITY_UINT8
:
2338 *datatype
= GL_UNSIGNED_BYTE
;
2341 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2342 *datatype
= GL_UNSIGNED_BYTE
;
2346 case MESA_FORMAT_ALPHA_UINT16
:
2347 case MESA_FORMAT_LUMINANCE_UINT16
:
2348 case MESA_FORMAT_INTENSITY_UINT16
:
2349 *datatype
= GL_UNSIGNED_SHORT
;
2352 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2353 *datatype
= GL_UNSIGNED_SHORT
;
2356 case MESA_FORMAT_ALPHA_UINT32
:
2357 case MESA_FORMAT_LUMINANCE_UINT32
:
2358 case MESA_FORMAT_INTENSITY_UINT32
:
2359 *datatype
= GL_UNSIGNED_INT
;
2362 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2363 *datatype
= GL_UNSIGNED_INT
;
2366 case MESA_FORMAT_ALPHA_INT8
:
2367 case MESA_FORMAT_LUMINANCE_INT8
:
2368 case MESA_FORMAT_INTENSITY_INT8
:
2369 *datatype
= GL_BYTE
;
2372 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2373 *datatype
= GL_BYTE
;
2377 case MESA_FORMAT_ALPHA_INT16
:
2378 case MESA_FORMAT_LUMINANCE_INT16
:
2379 case MESA_FORMAT_INTENSITY_INT16
:
2380 *datatype
= GL_SHORT
;
2383 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2384 *datatype
= GL_SHORT
;
2388 case MESA_FORMAT_ALPHA_INT32
:
2389 case MESA_FORMAT_LUMINANCE_INT32
:
2390 case MESA_FORMAT_INTENSITY_INT32
:
2394 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2399 case MESA_FORMAT_R_INT8
:
2400 *datatype
= GL_BYTE
;
2403 case MESA_FORMAT_RG_INT8
:
2404 *datatype
= GL_BYTE
;
2407 case MESA_FORMAT_RGB_INT8
:
2408 *datatype
= GL_BYTE
;
2411 case MESA_FORMAT_RGBA_INT8
:
2412 *datatype
= GL_BYTE
;
2415 case MESA_FORMAT_R_INT16
:
2416 *datatype
= GL_SHORT
;
2419 case MESA_FORMAT_RG_INT16
:
2420 *datatype
= GL_SHORT
;
2423 case MESA_FORMAT_RGB_INT16
:
2424 *datatype
= GL_SHORT
;
2427 case MESA_FORMAT_RGBA_INT16
:
2428 *datatype
= GL_SHORT
;
2431 case MESA_FORMAT_R_INT32
:
2435 case MESA_FORMAT_RG_INT32
:
2439 case MESA_FORMAT_RGB_INT32
:
2443 case MESA_FORMAT_RGBA_INT32
:
2449 * \name Non-normalized unsigned integer formats.
2451 case MESA_FORMAT_R_UINT8
:
2452 *datatype
= GL_UNSIGNED_BYTE
;
2455 case MESA_FORMAT_RG_UINT8
:
2456 *datatype
= GL_UNSIGNED_BYTE
;
2459 case MESA_FORMAT_RGB_UINT8
:
2460 *datatype
= GL_UNSIGNED_BYTE
;
2463 case MESA_FORMAT_RGBA_UINT8
:
2464 *datatype
= GL_UNSIGNED_BYTE
;
2467 case MESA_FORMAT_R_UINT16
:
2468 *datatype
= GL_UNSIGNED_SHORT
;
2471 case MESA_FORMAT_RG_UINT16
:
2472 *datatype
= GL_UNSIGNED_SHORT
;
2475 case MESA_FORMAT_RGB_UINT16
:
2476 *datatype
= GL_UNSIGNED_SHORT
;
2479 case MESA_FORMAT_RGBA_UINT16
:
2480 *datatype
= GL_UNSIGNED_SHORT
;
2483 case MESA_FORMAT_R_UINT32
:
2484 *datatype
= GL_UNSIGNED_INT
;
2487 case MESA_FORMAT_RG_UINT32
:
2488 *datatype
= GL_UNSIGNED_INT
;
2491 case MESA_FORMAT_RGB_UINT32
:
2492 *datatype
= GL_UNSIGNED_INT
;
2495 case MESA_FORMAT_RGBA_UINT32
:
2496 *datatype
= GL_UNSIGNED_INT
;
2500 case MESA_FORMAT_RGB9_E5_FLOAT
:
2501 *datatype
= GL_UNSIGNED_INT_5_9_9_9_REV
;
2505 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2506 *datatype
= GL_UNSIGNED_INT_10F_11F_11F_REV
;
2510 case MESA_FORMAT_ARGB2101010_UINT
:
2511 case MESA_FORMAT_ABGR2101010_UINT
:
2512 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2516 case MESA_FORMAT_COUNT
:
2520 case MESA_FORMAT_NONE
:
2521 /* For debug builds, warn if any formats are not handled */
2525 _mesa_problem(NULL
, "bad format %s in _mesa_format_to_type_and_comps",
2526 _mesa_get_format_name(format
));
2533 * Check if a gl_format exactly matches a GL formaat/type combination
2534 * such that we can use memcpy() from one to the other.
2535 * \param gl_format a MESA_FORMAT_x value
2536 * \param format the user-specified image format
2537 * \param type the user-specified image datatype
2538 * \param swapBytes typically the current pixel pack/unpack byteswap state
2539 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2542 _mesa_format_matches_format_and_type(gl_format gl_format
,
2543 GLenum format
, GLenum type
,
2544 GLboolean swapBytes
)
2546 const GLboolean littleEndian
= _mesa_little_endian();
2548 /* Note: When reading a GL format/type combination, the format lists channel
2549 * assignments from most significant channel in the type to least
2550 * significant. A type with _REV indicates that the assignments are
2551 * swapped, so they are listed from least significant to most significant.
2553 * For sanity, please keep this switch statement ordered the same as the
2554 * enums in formats.h.
2557 switch (gl_format
) {
2559 case MESA_FORMAT_NONE
:
2560 case MESA_FORMAT_COUNT
:
2563 case MESA_FORMAT_RGBA8888
:
2564 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& !swapBytes
)
2567 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&& swapBytes
)
2570 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
2573 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
2577 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8
2581 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
2586 case MESA_FORMAT_RGBA8888_REV
:
2587 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2591 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
2594 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
2597 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8
&&
2601 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2605 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
2610 case MESA_FORMAT_ARGB8888
:
2611 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2615 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
2618 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
2623 case MESA_FORMAT_ARGB8888_REV
:
2624 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& !swapBytes
)
2627 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2631 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
2636 case MESA_FORMAT_RGBX8888
:
2637 case MESA_FORMAT_RGBX8888_REV
:
2640 case MESA_FORMAT_XRGB8888
:
2641 case MESA_FORMAT_XRGB8888_REV
:
2644 case MESA_FORMAT_RGB888
:
2645 return format
== GL_BGR
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2647 case MESA_FORMAT_BGR888
:
2648 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2650 case MESA_FORMAT_RGB565
:
2651 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
&& !swapBytes
;
2653 case MESA_FORMAT_RGB565_REV
:
2654 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2655 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2656 * according to formats.h, so they can't be matched.
2660 case MESA_FORMAT_ARGB4444
:
2661 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&&
2664 case MESA_FORMAT_ARGB4444_REV
:
2667 case MESA_FORMAT_RGBA5551
:
2668 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
2671 case MESA_FORMAT_ARGB1555
:
2672 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
&&
2675 case MESA_FORMAT_ARGB1555_REV
:
2678 case MESA_FORMAT_AL44
:
2680 case MESA_FORMAT_AL88
:
2681 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2682 case MESA_FORMAT_AL88_REV
:
2685 case MESA_FORMAT_AL1616
:
2686 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
&& !swapBytes
;
2687 case MESA_FORMAT_AL1616_REV
:
2690 case MESA_FORMAT_RGB332
:
2691 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
2693 case MESA_FORMAT_A8
:
2694 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
2695 case MESA_FORMAT_A16
:
2696 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&&
2697 littleEndian
&& !swapBytes
;
2698 case MESA_FORMAT_L8
:
2699 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
2700 case MESA_FORMAT_L16
:
2701 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&&
2702 littleEndian
&& !swapBytes
;
2703 case MESA_FORMAT_I8
:
2704 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_BYTE
;
2705 case MESA_FORMAT_I16
:
2706 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_SHORT
&&
2707 littleEndian
&& !swapBytes
;
2709 case MESA_FORMAT_YCBCR
:
2710 case MESA_FORMAT_YCBCR_REV
:
2713 case MESA_FORMAT_R8
:
2714 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
2715 case MESA_FORMAT_GR88
:
2716 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2717 case MESA_FORMAT_RG88
:
2720 case MESA_FORMAT_R16
:
2721 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
&&
2723 case MESA_FORMAT_RG1616
:
2724 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
&&
2726 case MESA_FORMAT_RG1616_REV
:
2729 case MESA_FORMAT_ARGB2101010
:
2730 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
2733 case MESA_FORMAT_Z24_S8
:
2734 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
&&
2736 case MESA_FORMAT_Z24_X8
:
2737 case MESA_FORMAT_S8_Z24
:
2740 case MESA_FORMAT_Z16
:
2741 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
&&
2744 case MESA_FORMAT_X8_Z24
:
2747 case MESA_FORMAT_Z32
:
2748 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
&&
2751 case MESA_FORMAT_S8
:
2752 return format
== GL_STENCIL_INDEX
&& type
== GL_UNSIGNED_BYTE
;
2754 case MESA_FORMAT_SRGB8
:
2755 case MESA_FORMAT_SRGBA8
:
2756 case MESA_FORMAT_SARGB8
:
2757 case MESA_FORMAT_SL8
:
2758 case MESA_FORMAT_SLA8
:
2759 case MESA_FORMAT_SRGB_DXT1
:
2760 case MESA_FORMAT_SRGBA_DXT1
:
2761 case MESA_FORMAT_SRGBA_DXT3
:
2762 case MESA_FORMAT_SRGBA_DXT5
:
2765 case MESA_FORMAT_RGB_FXT1
:
2766 case MESA_FORMAT_RGBA_FXT1
:
2767 case MESA_FORMAT_RGB_DXT1
:
2768 case MESA_FORMAT_RGBA_DXT1
:
2769 case MESA_FORMAT_RGBA_DXT3
:
2770 case MESA_FORMAT_RGBA_DXT5
:
2773 case MESA_FORMAT_RGBA_FLOAT32
:
2774 return format
== GL_RGBA
&& type
== GL_FLOAT
&& !swapBytes
;
2775 case MESA_FORMAT_RGBA_FLOAT16
:
2776 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2778 case MESA_FORMAT_RGB_FLOAT32
:
2779 return format
== GL_RGB
&& type
== GL_FLOAT
&& !swapBytes
;
2780 case MESA_FORMAT_RGB_FLOAT16
:
2781 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2783 case MESA_FORMAT_ALPHA_FLOAT32
:
2784 return format
== GL_ALPHA
&& type
== GL_FLOAT
&& !swapBytes
;
2785 case MESA_FORMAT_ALPHA_FLOAT16
:
2786 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2788 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2789 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
&& !swapBytes
;
2790 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2791 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2793 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2794 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
&& !swapBytes
;
2795 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2796 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2798 case MESA_FORMAT_INTENSITY_FLOAT32
:
2799 return format
== GL_INTENSITY
&& type
== GL_FLOAT
&& !swapBytes
;
2800 case MESA_FORMAT_INTENSITY_FLOAT16
:
2801 return format
== GL_INTENSITY
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2803 case MESA_FORMAT_R_FLOAT32
:
2804 return format
== GL_RED
&& type
== GL_FLOAT
&& !swapBytes
;
2805 case MESA_FORMAT_R_FLOAT16
:
2806 return format
== GL_RED
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2808 case MESA_FORMAT_RG_FLOAT32
:
2809 return format
== GL_RG
&& type
== GL_FLOAT
&& !swapBytes
;
2810 case MESA_FORMAT_RG_FLOAT16
:
2811 return format
== GL_RG
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
2813 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2814 case MESA_FORMAT_ALPHA_UINT8
:
2815 case MESA_FORMAT_ALPHA_UINT16
:
2816 case MESA_FORMAT_ALPHA_UINT32
:
2817 case MESA_FORMAT_ALPHA_INT8
:
2818 case MESA_FORMAT_ALPHA_INT16
:
2819 case MESA_FORMAT_ALPHA_INT32
:
2822 case MESA_FORMAT_INTENSITY_UINT8
:
2823 case MESA_FORMAT_INTENSITY_UINT16
:
2824 case MESA_FORMAT_INTENSITY_UINT32
:
2825 case MESA_FORMAT_INTENSITY_INT8
:
2826 case MESA_FORMAT_INTENSITY_INT16
:
2827 case MESA_FORMAT_INTENSITY_INT32
:
2830 case MESA_FORMAT_LUMINANCE_UINT8
:
2831 case MESA_FORMAT_LUMINANCE_UINT16
:
2832 case MESA_FORMAT_LUMINANCE_UINT32
:
2833 case MESA_FORMAT_LUMINANCE_INT8
:
2834 case MESA_FORMAT_LUMINANCE_INT16
:
2835 case MESA_FORMAT_LUMINANCE_INT32
:
2838 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2839 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2840 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2841 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2842 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2843 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2846 case MESA_FORMAT_R_INT8
:
2847 case MESA_FORMAT_RG_INT8
:
2848 case MESA_FORMAT_RGB_INT8
:
2849 case MESA_FORMAT_RGBA_INT8
:
2850 case MESA_FORMAT_R_INT16
:
2851 case MESA_FORMAT_RG_INT16
:
2852 case MESA_FORMAT_RGB_INT16
:
2853 case MESA_FORMAT_RGBA_INT16
:
2854 case MESA_FORMAT_R_INT32
:
2855 case MESA_FORMAT_RG_INT32
:
2856 case MESA_FORMAT_RGB_INT32
:
2857 case MESA_FORMAT_RGBA_INT32
:
2860 case MESA_FORMAT_R_UINT8
:
2861 case MESA_FORMAT_RG_UINT8
:
2862 case MESA_FORMAT_RGB_UINT8
:
2863 case MESA_FORMAT_RGBA_UINT8
:
2864 case MESA_FORMAT_R_UINT16
:
2865 case MESA_FORMAT_RG_UINT16
:
2866 case MESA_FORMAT_RGB_UINT16
:
2867 case MESA_FORMAT_RGBA_UINT16
:
2868 case MESA_FORMAT_R_UINT32
:
2869 case MESA_FORMAT_RG_UINT32
:
2870 case MESA_FORMAT_RGB_UINT32
:
2871 case MESA_FORMAT_RGBA_UINT32
:
2874 case MESA_FORMAT_DUDV8
:
2875 case MESA_FORMAT_SIGNED_R8
:
2876 case MESA_FORMAT_SIGNED_RG88_REV
:
2877 case MESA_FORMAT_SIGNED_RGBX8888
:
2880 case MESA_FORMAT_SIGNED_RGBA8888
:
2881 if (format
== GL_RGBA
&& type
== GL_BYTE
&& !littleEndian
)
2884 if (format
== GL_ABGR_EXT
&& type
== GL_BYTE
&& littleEndian
)
2889 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2890 if (format
== GL_RGBA
&& type
== GL_BYTE
&& littleEndian
)
2893 if (format
== GL_ABGR_EXT
&& type
== GL_BYTE
&& !littleEndian
)
2898 case MESA_FORMAT_SIGNED_R16
:
2899 case MESA_FORMAT_SIGNED_GR1616
:
2900 case MESA_FORMAT_SIGNED_RGB_16
:
2901 case MESA_FORMAT_SIGNED_RGBA_16
:
2902 case MESA_FORMAT_RGBA_16
:
2903 /* FINISHME: SNORM */
2906 case MESA_FORMAT_RED_RGTC1
:
2907 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2908 case MESA_FORMAT_RG_RGTC2
:
2909 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2912 case MESA_FORMAT_L_LATC1
:
2913 case MESA_FORMAT_SIGNED_L_LATC1
:
2914 case MESA_FORMAT_LA_LATC2
:
2915 case MESA_FORMAT_SIGNED_LA_LATC2
:
2918 case MESA_FORMAT_ETC1_RGB8
:
2921 case MESA_FORMAT_SIGNED_A8
:
2922 case MESA_FORMAT_SIGNED_L8
:
2923 case MESA_FORMAT_SIGNED_AL88
:
2924 case MESA_FORMAT_SIGNED_I8
:
2925 case MESA_FORMAT_SIGNED_A16
:
2926 case MESA_FORMAT_SIGNED_L16
:
2927 case MESA_FORMAT_SIGNED_AL1616
:
2928 case MESA_FORMAT_SIGNED_I16
:
2929 /* FINISHME: SNORM */
2932 case MESA_FORMAT_ARGB2101010_UINT
:
2933 return (format
== GL_BGRA_INTEGER_EXT
&&
2934 type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
2937 case MESA_FORMAT_ABGR2101010_UINT
:
2938 return (format
== GL_RGBA_INTEGER_EXT
&&
2939 type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
2942 case MESA_FORMAT_RGB9_E5_FLOAT
:
2943 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_5_9_9_9_REV
&&
2946 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2947 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_10F_11F_11F_REV
&&
2950 case MESA_FORMAT_Z32_FLOAT
:
2951 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
&& !swapBytes
;
2953 case MESA_FORMAT_Z32_FLOAT_X24S8
: