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"
33 * Information about texture formats.
39 /** text name for debugging */
43 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
44 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
45 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL, GL_DUDV_ATI.
50 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
51 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
59 GLubyte LuminanceBits
;
60 GLubyte IntensityBits
;
66 * To describe compressed formats. If not compressed, Width=Height=1.
68 GLubyte BlockWidth
, BlockHeight
;
69 GLubyte BytesPerBlock
;
74 * Info about each format.
75 * These must be in the same order as the MESA_FORMAT_* enums so that
76 * we can do lookups without searching.
78 static struct gl_format_info format_info
[MESA_FORMAT_COUNT
] =
81 MESA_FORMAT_NONE
, /* Name */
82 "MESA_FORMAT_NONE", /* StrName */
83 GL_NONE
, /* BaseFormat */
84 GL_NONE
, /* DataType */
85 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
86 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
87 0, 0, 0 /* BlockWidth/Height,Bytes */
90 MESA_FORMAT_RGBA8888
, /* Name */
91 "MESA_FORMAT_RGBA8888", /* StrName */
92 GL_RGBA
, /* BaseFormat */
93 GL_UNSIGNED_NORMALIZED
, /* DataType */
94 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
95 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
96 1, 1, 4 /* BlockWidth/Height,Bytes */
99 MESA_FORMAT_RGBA8888_REV
, /* Name */
100 "MESA_FORMAT_RGBA8888_REV", /* StrName */
101 GL_RGBA
, /* BaseFormat */
102 GL_UNSIGNED_NORMALIZED
, /* DataType */
103 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
104 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
105 1, 1, 4 /* BlockWidth/Height,Bytes */
108 MESA_FORMAT_ARGB8888
, /* Name */
109 "MESA_FORMAT_ARGB8888", /* StrName */
110 GL_RGBA
, /* BaseFormat */
111 GL_UNSIGNED_NORMALIZED
, /* DataType */
112 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
113 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
114 1, 1, 4 /* BlockWidth/Height,Bytes */
117 MESA_FORMAT_ARGB8888_REV
, /* Name */
118 "MESA_FORMAT_ARGB8888_REV", /* StrName */
119 GL_RGBA
, /* BaseFormat */
120 GL_UNSIGNED_NORMALIZED
, /* DataType */
121 8, 8, 8, 8, /* Red/Green/Blue/AlphaBits */
122 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
123 1, 1, 4 /* BlockWidth/Height,Bytes */
126 MESA_FORMAT_RGBX8888
, /* Name */
127 "MESA_FORMAT_RGBX8888", /* StrName */
128 GL_RGB
, /* BaseFormat */
129 GL_UNSIGNED_NORMALIZED
, /* DataType */
130 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
131 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
132 1, 1, 4 /* BlockWidth/Height,Bytes */
135 MESA_FORMAT_RGBX8888_REV
, /* Name */
136 "MESA_FORMAT_RGBX8888_REV", /* StrName */
137 GL_RGB
, /* BaseFormat */
138 GL_UNSIGNED_NORMALIZED
, /* DataType */
139 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
140 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
141 1, 1, 4 /* BlockWidth/Height,Bytes */
144 MESA_FORMAT_XRGB8888
, /* Name */
145 "MESA_FORMAT_XRGB8888", /* StrName */
146 GL_RGB
, /* BaseFormat */
147 GL_UNSIGNED_NORMALIZED
, /* DataType */
148 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
149 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
150 1, 1, 4 /* BlockWidth/Height,Bytes */
153 MESA_FORMAT_XRGB8888_REV
, /* Name */
154 "MESA_FORMAT_XRGB8888_REV", /* StrName */
155 GL_RGB
, /* BaseFormat */
156 GL_UNSIGNED_NORMALIZED
, /* DataType */
157 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
158 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
159 1, 1, 4 /* BlockWidth/Height,Bytes */
162 MESA_FORMAT_RGB888
, /* Name */
163 "MESA_FORMAT_RGB888", /* StrName */
164 GL_RGB
, /* BaseFormat */
165 GL_UNSIGNED_NORMALIZED
, /* DataType */
166 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
167 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
168 1, 1, 3 /* BlockWidth/Height,Bytes */
171 MESA_FORMAT_BGR888
, /* Name */
172 "MESA_FORMAT_BGR888", /* StrName */
173 GL_RGB
, /* BaseFormat */
174 GL_UNSIGNED_NORMALIZED
, /* DataType */
175 8, 8, 8, 0, /* Red/Green/Blue/AlphaBits */
176 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
177 1, 1, 3 /* BlockWidth/Height,Bytes */
180 MESA_FORMAT_RGB565
, /* Name */
181 "MESA_FORMAT_RGB565", /* StrName */
182 GL_RGB
, /* BaseFormat */
183 GL_UNSIGNED_NORMALIZED
, /* DataType */
184 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
185 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
186 1, 1, 2 /* BlockWidth/Height,Bytes */
189 MESA_FORMAT_RGB565_REV
, /* Name */
190 "MESA_FORMAT_RGB565_REV", /* StrName */
191 GL_RGB
, /* BaseFormat */
192 GL_UNSIGNED_NORMALIZED
, /* DataType */
193 5, 6, 5, 0, /* Red/Green/Blue/AlphaBits */
194 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
195 1, 1, 2 /* BlockWidth/Height,Bytes */
198 MESA_FORMAT_ARGB4444
, /* Name */
199 "MESA_FORMAT_ARGB4444", /* StrName */
200 GL_RGBA
, /* BaseFormat */
201 GL_UNSIGNED_NORMALIZED
, /* DataType */
202 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
203 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
204 1, 1, 2 /* BlockWidth/Height,Bytes */
207 MESA_FORMAT_ARGB4444_REV
, /* Name */
208 "MESA_FORMAT_ARGB4444_REV", /* StrName */
209 GL_RGBA
, /* BaseFormat */
210 GL_UNSIGNED_NORMALIZED
, /* DataType */
211 4, 4, 4, 4, /* Red/Green/Blue/AlphaBits */
212 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
213 1, 1, 2 /* BlockWidth/Height,Bytes */
216 MESA_FORMAT_RGBA5551
, /* Name */
217 "MESA_FORMAT_RGBA5551", /* StrName */
218 GL_RGBA
, /* BaseFormat */
219 GL_UNSIGNED_NORMALIZED
, /* DataType */
220 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
221 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
222 1, 1, 2 /* BlockWidth/Height,Bytes */
225 MESA_FORMAT_ARGB1555
, /* Name */
226 "MESA_FORMAT_ARGB1555", /* StrName */
227 GL_RGBA
, /* BaseFormat */
228 GL_UNSIGNED_NORMALIZED
, /* DataType */
229 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
230 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
231 1, 1, 2 /* BlockWidth/Height,Bytes */
234 MESA_FORMAT_ARGB1555_REV
, /* Name */
235 "MESA_FORMAT_ARGB1555_REV", /* StrName */
236 GL_RGBA
, /* BaseFormat */
237 GL_UNSIGNED_NORMALIZED
, /* DataType */
238 5, 5, 5, 1, /* Red/Green/Blue/AlphaBits */
239 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
240 1, 1, 2 /* BlockWidth/Height,Bytes */
243 MESA_FORMAT_AL44
, /* Name */
244 "MESA_FORMAT_AL44", /* StrName */
245 GL_LUMINANCE_ALPHA
, /* BaseFormat */
246 GL_UNSIGNED_NORMALIZED
, /* DataType */
247 0, 0, 0, 4, /* Red/Green/Blue/AlphaBits */
248 4, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
249 1, 1, 1 /* BlockWidth/Height,Bytes */
252 MESA_FORMAT_AL88
, /* Name */
253 "MESA_FORMAT_AL88", /* StrName */
254 GL_LUMINANCE_ALPHA
, /* BaseFormat */
255 GL_UNSIGNED_NORMALIZED
, /* DataType */
256 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
257 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
258 1, 1, 2 /* BlockWidth/Height,Bytes */
261 MESA_FORMAT_AL88_REV
, /* Name */
262 "MESA_FORMAT_AL88_REV", /* StrName */
263 GL_LUMINANCE_ALPHA
, /* BaseFormat */
264 GL_UNSIGNED_NORMALIZED
, /* DataType */
265 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
266 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
267 1, 1, 2 /* BlockWidth/Height,Bytes */
270 MESA_FORMAT_AL1616
, /* Name */
271 "MESA_FORMAT_AL1616", /* StrName */
272 GL_LUMINANCE_ALPHA
, /* BaseFormat */
273 GL_UNSIGNED_NORMALIZED
, /* DataType */
274 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
275 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
276 1, 1, 4 /* BlockWidth/Height,Bytes */
279 MESA_FORMAT_AL1616_REV
, /* Name */
280 "MESA_FORMAT_AL1616_REV", /* StrName */
281 GL_LUMINANCE_ALPHA
, /* BaseFormat */
282 GL_UNSIGNED_NORMALIZED
, /* DataType */
283 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
284 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
285 1, 1, 4 /* BlockWidth/Height,Bytes */
288 MESA_FORMAT_RGB332
, /* Name */
289 "MESA_FORMAT_RGB332", /* StrName */
290 GL_RGB
, /* BaseFormat */
291 GL_UNSIGNED_NORMALIZED
, /* DataType */
292 3, 3, 2, 0, /* Red/Green/Blue/AlphaBits */
293 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
294 1, 1, 1 /* BlockWidth/Height,Bytes */
297 MESA_FORMAT_A8
, /* Name */
298 "MESA_FORMAT_A8", /* StrName */
299 GL_ALPHA
, /* BaseFormat */
300 GL_UNSIGNED_NORMALIZED
, /* DataType */
301 0, 0, 0, 8, /* Red/Green/Blue/AlphaBits */
302 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
303 1, 1, 1 /* BlockWidth/Height,Bytes */
306 MESA_FORMAT_A16
, /* Name */
307 "MESA_FORMAT_A16", /* StrName */
308 GL_ALPHA
, /* BaseFormat */
309 GL_UNSIGNED_NORMALIZED
, /* DataType */
310 0, 0, 0, 16, /* Red/Green/Blue/AlphaBits */
311 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
312 1, 1, 2 /* BlockWidth/Height,Bytes */
315 MESA_FORMAT_L8
, /* Name */
316 "MESA_FORMAT_L8", /* StrName */
317 GL_LUMINANCE
, /* BaseFormat */
318 GL_UNSIGNED_NORMALIZED
, /* DataType */
319 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
320 8, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
321 1, 1, 1 /* BlockWidth/Height,Bytes */
324 MESA_FORMAT_L16
, /* Name */
325 "MESA_FORMAT_L16", /* StrName */
326 GL_LUMINANCE
, /* BaseFormat */
327 GL_UNSIGNED_NORMALIZED
, /* DataType */
328 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
329 16, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
330 1, 1, 2 /* BlockWidth/Height,Bytes */
333 MESA_FORMAT_I8
, /* Name */
334 "MESA_FORMAT_I8", /* StrName */
335 GL_INTENSITY
, /* BaseFormat */
336 GL_UNSIGNED_NORMALIZED
, /* DataType */
337 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
338 0, 8, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
339 1, 1, 1 /* BlockWidth/Height,Bytes */
342 MESA_FORMAT_I16
, /* Name */
343 "MESA_FORMAT_I16", /* StrName */
344 GL_INTENSITY
, /* BaseFormat */
345 GL_UNSIGNED_NORMALIZED
, /* DataType */
346 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
347 0, 16, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
348 1, 1, 2 /* BlockWidth/Height,Bytes */
351 MESA_FORMAT_YCBCR
, /* Name */
352 "MESA_FORMAT_YCBCR", /* StrName */
353 GL_YCBCR_MESA
, /* BaseFormat */
354 GL_UNSIGNED_NORMALIZED
, /* DataType */
355 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
356 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
357 1, 1, 2 /* BlockWidth/Height,Bytes */
360 MESA_FORMAT_YCBCR_REV
, /* Name */
361 "MESA_FORMAT_YCBCR_REV", /* StrName */
362 GL_YCBCR_MESA
, /* BaseFormat */
363 GL_UNSIGNED_NORMALIZED
, /* DataType */
364 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
365 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
366 1, 1, 2 /* BlockWidth/Height,Bytes */
372 GL_UNSIGNED_NORMALIZED
,
381 GL_UNSIGNED_NORMALIZED
,
387 MESA_FORMAT_RG88_REV
,
388 "MESA_FORMAT_RG88_REV",
390 GL_UNSIGNED_NORMALIZED
,
399 GL_UNSIGNED_NORMALIZED
,
406 "MESA_FORMAT_RG1616",
408 GL_UNSIGNED_NORMALIZED
,
414 MESA_FORMAT_RG1616_REV
,
415 "MESA_FORMAT_RG1616_REV",
417 GL_UNSIGNED_NORMALIZED
,
423 MESA_FORMAT_ARGB2101010
,
424 "MESA_FORMAT_ARGB2101010",
426 GL_UNSIGNED_NORMALIZED
,
432 MESA_FORMAT_Z24_S8
, /* Name */
433 "MESA_FORMAT_Z24_S8", /* StrName */
434 GL_DEPTH_STENCIL
, /* BaseFormat */
435 GL_UNSIGNED_NORMALIZED
, /* DataType */
436 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
437 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
438 1, 1, 4 /* BlockWidth/Height,Bytes */
441 MESA_FORMAT_S8_Z24
, /* Name */
442 "MESA_FORMAT_S8_Z24", /* StrName */
443 GL_DEPTH_STENCIL
, /* BaseFormat */
444 GL_UNSIGNED_NORMALIZED
, /* DataType */
445 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
446 0, 0, 0, 24, 8, /* Lum/Int/Index/Depth/StencilBits */
447 1, 1, 4 /* BlockWidth/Height,Bytes */
450 MESA_FORMAT_Z16
, /* Name */
451 "MESA_FORMAT_Z16", /* StrName */
452 GL_DEPTH_COMPONENT
, /* BaseFormat */
453 GL_UNSIGNED_NORMALIZED
, /* DataType */
454 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
455 0, 0, 0, 16, 0, /* Lum/Int/Index/Depth/StencilBits */
456 1, 1, 2 /* BlockWidth/Height,Bytes */
459 MESA_FORMAT_X8_Z24
, /* Name */
460 "MESA_FORMAT_X8_Z24", /* StrName */
461 GL_DEPTH_COMPONENT
, /* BaseFormat */
462 GL_UNSIGNED_NORMALIZED
, /* DataType */
463 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
464 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
465 1, 1, 4 /* BlockWidth/Height,Bytes */
468 MESA_FORMAT_Z24_X8
, /* Name */
469 "MESA_FORMAT_Z24_X8", /* StrName */
470 GL_DEPTH_COMPONENT
, /* BaseFormat */
471 GL_UNSIGNED_NORMALIZED
, /* DataType */
472 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
473 0, 0, 0, 24, 0, /* Lum/Int/Index/Depth/StencilBits */
474 1, 1, 4 /* BlockWidth/Height,Bytes */
477 MESA_FORMAT_Z32
, /* Name */
478 "MESA_FORMAT_Z32", /* StrName */
479 GL_DEPTH_COMPONENT
, /* BaseFormat */
480 GL_UNSIGNED_NORMALIZED
, /* DataType */
481 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
482 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
483 1, 1, 4 /* BlockWidth/Height,Bytes */
486 MESA_FORMAT_S8
, /* Name */
487 "MESA_FORMAT_S8", /* StrName */
488 GL_STENCIL_INDEX
, /* BaseFormat */
489 GL_UNSIGNED_INT
, /* DataType */
490 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
491 0, 0, 0, 0, 8, /* Lum/Int/Index/Depth/StencilBits */
492 1, 1, 1 /* BlockWidth/Height,Bytes */
498 GL_UNSIGNED_NORMALIZED
,
505 "MESA_FORMAT_SRGBA8",
507 GL_UNSIGNED_NORMALIZED
,
514 "MESA_FORMAT_SARGB8",
516 GL_UNSIGNED_NORMALIZED
,
525 GL_UNSIGNED_NORMALIZED
,
534 GL_UNSIGNED_NORMALIZED
,
540 MESA_FORMAT_SRGB_DXT1
, /* Name */
541 "MESA_FORMAT_SRGB_DXT1", /* StrName */
542 GL_RGB
, /* BaseFormat */
543 GL_UNSIGNED_NORMALIZED
, /* DataType */
544 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
545 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
546 4, 4, 8 /* 8 bytes per 4x4 block */
549 MESA_FORMAT_SRGBA_DXT1
,
550 "MESA_FORMAT_SRGBA_DXT1",
552 GL_UNSIGNED_NORMALIZED
,
555 4, 4, 8 /* 8 bytes per 4x4 block */
558 MESA_FORMAT_SRGBA_DXT3
,
559 "MESA_FORMAT_SRGBA_DXT3",
561 GL_UNSIGNED_NORMALIZED
,
564 4, 4, 16 /* 16 bytes per 4x4 block */
567 MESA_FORMAT_SRGBA_DXT5
,
568 "MESA_FORMAT_SRGBA_DXT5",
570 GL_UNSIGNED_NORMALIZED
,
573 4, 4, 16 /* 16 bytes per 4x4 block */
577 MESA_FORMAT_RGB_FXT1
,
578 "MESA_FORMAT_RGB_FXT1",
580 GL_UNSIGNED_NORMALIZED
,
581 4, 4, 4, 0, /* approx Red/Green/BlueBits */
583 8, 4, 16 /* 16 bytes per 8x4 block */
586 MESA_FORMAT_RGBA_FXT1
,
587 "MESA_FORMAT_RGBA_FXT1",
589 GL_UNSIGNED_NORMALIZED
,
590 4, 4, 4, 1, /* approx Red/Green/Blue/AlphaBits */
592 8, 4, 16 /* 16 bytes per 8x4 block */
596 MESA_FORMAT_RGB_DXT1
, /* Name */
597 "MESA_FORMAT_RGB_DXT1", /* StrName */
598 GL_RGB
, /* BaseFormat */
599 GL_UNSIGNED_NORMALIZED
, /* DataType */
600 4, 4, 4, 0, /* approx Red/Green/Blue/AlphaBits */
601 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
602 4, 4, 8 /* 8 bytes per 4x4 block */
605 MESA_FORMAT_RGBA_DXT1
,
606 "MESA_FORMAT_RGBA_DXT1",
608 GL_UNSIGNED_NORMALIZED
,
611 4, 4, 8 /* 8 bytes per 4x4 block */
614 MESA_FORMAT_RGBA_DXT3
,
615 "MESA_FORMAT_RGBA_DXT3",
617 GL_UNSIGNED_NORMALIZED
,
620 4, 4, 16 /* 16 bytes per 4x4 block */
623 MESA_FORMAT_RGBA_DXT5
,
624 "MESA_FORMAT_RGBA_DXT5",
626 GL_UNSIGNED_NORMALIZED
,
629 4, 4, 16 /* 16 bytes per 4x4 block */
632 MESA_FORMAT_RGBA_FLOAT32
,
633 "MESA_FORMAT_RGBA_FLOAT32",
641 MESA_FORMAT_RGBA_FLOAT16
,
642 "MESA_FORMAT_RGBA_FLOAT16",
650 MESA_FORMAT_RGB_FLOAT32
,
651 "MESA_FORMAT_RGB_FLOAT32",
659 MESA_FORMAT_RGB_FLOAT16
,
660 "MESA_FORMAT_RGB_FLOAT16",
668 MESA_FORMAT_ALPHA_FLOAT32
,
669 "MESA_FORMAT_ALPHA_FLOAT32",
677 MESA_FORMAT_ALPHA_FLOAT16
,
678 "MESA_FORMAT_ALPHA_FLOAT16",
686 MESA_FORMAT_LUMINANCE_FLOAT32
,
687 "MESA_FORMAT_LUMINANCE_FLOAT32",
695 MESA_FORMAT_LUMINANCE_FLOAT16
,
696 "MESA_FORMAT_LUMINANCE_FLOAT16",
704 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
,
705 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32",
713 MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
,
714 "MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16",
722 MESA_FORMAT_INTENSITY_FLOAT32
,
723 "MESA_FORMAT_INTENSITY_FLOAT32",
731 MESA_FORMAT_INTENSITY_FLOAT16
,
732 "MESA_FORMAT_INTENSITY_FLOAT16",
740 MESA_FORMAT_R_FLOAT32
,
741 "MESA_FORMAT_R_FLOAT32",
749 MESA_FORMAT_R_FLOAT16
,
750 "MESA_FORMAT_R_FLOAT16",
758 MESA_FORMAT_RG_FLOAT32
,
759 "MESA_FORMAT_RG_FLOAT32",
767 MESA_FORMAT_RG_FLOAT16
,
768 "MESA_FORMAT_RG_FLOAT16",
776 /* unnormalized signed int formats */
777 /* unnormalized unsigned int formats */
779 MESA_FORMAT_ALPHA_UINT8
,
780 "MESA_FORMAT_ALPHA_UINT8",
788 MESA_FORMAT_ALPHA_UINT16
,
789 "MESA_FORMAT_ALPHA_UINT16",
797 MESA_FORMAT_ALPHA_UINT32
,
798 "MESA_FORMAT_ALPHA_UINT32",
806 MESA_FORMAT_ALPHA_INT8
,
807 "MESA_FORMAT_ALPHA_INT8",
815 MESA_FORMAT_ALPHA_INT16
,
816 "MESA_FORMAT_ALPHA_INT16",
824 MESA_FORMAT_ALPHA_INT32
,
825 "MESA_FORMAT_ALPHA_INT32",
833 MESA_FORMAT_INTENSITY_UINT8
,
834 "MESA_FORMAT_INTENSITY_UINT8",
842 MESA_FORMAT_INTENSITY_UINT16
,
843 "MESA_FORMAT_INTENSITY_UINT16",
851 MESA_FORMAT_INTENSITY_UINT32
,
852 "MESA_FORMAT_INTENSITY_UINT32",
860 MESA_FORMAT_INTENSITY_INT8
,
861 "MESA_FORMAT_INTENSITY_INT8",
869 MESA_FORMAT_INTENSITY_INT16
,
870 "MESA_FORMAT_INTENSITY_INT16",
878 MESA_FORMAT_INTENSITY_INT32
,
879 "MESA_FORMAT_INTENSITY_INT32",
887 MESA_FORMAT_LUMINANCE_UINT8
,
888 "MESA_FORMAT_LUMINANCE_UINT8",
896 MESA_FORMAT_LUMINANCE_UINT16
,
897 "MESA_FORMAT_LUMINANCE_UINT16",
905 MESA_FORMAT_LUMINANCE_UINT32
,
906 "MESA_FORMAT_LUMINANCE_UINT32",
914 MESA_FORMAT_LUMINANCE_INT8
,
915 "MESA_FORMAT_LUMINANCE_INT8",
923 MESA_FORMAT_LUMINANCE_INT16
,
924 "MESA_FORMAT_LUMINANCE_INT16",
932 MESA_FORMAT_LUMINANCE_INT32
,
933 "MESA_FORMAT_LUMINANCE_INT32",
941 MESA_FORMAT_LUMINANCE_ALPHA_UINT8
,
942 "MESA_FORMAT_LUMINANCE_ALPHA_UINT8",
950 MESA_FORMAT_LUMINANCE_ALPHA_UINT16
,
951 "MESA_FORMAT_LUMINANCE_ALPHA_UINT16",
959 MESA_FORMAT_LUMINANCE_ALPHA_UINT32
,
960 "MESA_FORMAT_LUMINANCE_ALPHA_UINT32",
968 MESA_FORMAT_LUMINANCE_ALPHA_INT8
,
969 "MESA_FORMAT_LUMINANCE_ALPHA_INT8",
977 MESA_FORMAT_LUMINANCE_ALPHA_INT16
,
978 "MESA_FORMAT_LUMINANCE_ALPHA_INT16",
986 MESA_FORMAT_LUMINANCE_ALPHA_INT32
,
987 "MESA_FORMAT_LUMINANCE_ALPHA_INT32",
997 "MESA_FORMAT_R_INT8",
1005 MESA_FORMAT_RG_INT8
,
1006 "MESA_FORMAT_RG_INT8",
1014 MESA_FORMAT_RGB_INT8
,
1015 "MESA_FORMAT_RGB_INT8",
1023 MESA_FORMAT_RGBA_INT8
,
1024 "MESA_FORMAT_RGBA_INT8",
1032 MESA_FORMAT_R_INT16
,
1033 "MESA_FORMAT_R_INT16",
1041 MESA_FORMAT_RG_INT16
,
1042 "MESA_FORMAT_RG_INT16",
1050 MESA_FORMAT_RGB_INT16
,
1051 "MESA_FORMAT_RGB_INT16",
1059 MESA_FORMAT_RGBA_INT16
,
1060 "MESA_FORMAT_RGBA_INT16",
1068 MESA_FORMAT_R_INT32
,
1069 "MESA_FORMAT_R_INT32",
1077 MESA_FORMAT_RG_INT32
,
1078 "MESA_FORMAT_RG_INT32",
1086 MESA_FORMAT_RGB_INT32
,
1087 "MESA_FORMAT_RGB_INT32",
1095 MESA_FORMAT_RGBA_INT32
,
1096 "MESA_FORMAT_RGBA_INT32",
1104 MESA_FORMAT_R_UINT8
,
1105 "MESA_FORMAT_R_UINT8",
1113 MESA_FORMAT_RG_UINT8
,
1114 "MESA_FORMAT_RG_UINT8",
1122 MESA_FORMAT_RGB_UINT8
,
1123 "MESA_FORMAT_RGB_UINT8",
1131 MESA_FORMAT_RGBA_UINT8
,
1132 "MESA_FORMAT_RGBA_UINT8",
1140 MESA_FORMAT_R_UINT16
,
1141 "MESA_FORMAT_R_UINT16",
1149 MESA_FORMAT_RG_UINT16
,
1150 "MESA_FORMAT_RG_UINT16",
1158 MESA_FORMAT_RGB_UINT16
,
1159 "MESA_FORMAT_RGB_UINT16",
1167 MESA_FORMAT_RGBA_UINT16
,
1168 "MESA_FORMAT_RGBA_UINT16",
1176 MESA_FORMAT_R_UINT32
,
1177 "MESA_FORMAT_R_UINT32",
1185 MESA_FORMAT_RG_UINT32
,
1186 "MESA_FORMAT_RG_UINT32",
1194 MESA_FORMAT_RGB_UINT32
,
1195 "MESA_FORMAT_RGB_UINT32",
1203 MESA_FORMAT_RGBA_UINT32
,
1204 "MESA_FORMAT_RGBA_UINT32",
1215 "MESA_FORMAT_DUDV8",
1217 GL_SIGNED_NORMALIZED
,
1223 /* Signed 8 bits / channel */
1225 MESA_FORMAT_SIGNED_R8
, /* Name */
1226 "MESA_FORMAT_SIGNED_R8", /* StrName */
1227 GL_RED
, /* BaseFormat */
1228 GL_SIGNED_NORMALIZED
, /* DataType */
1229 8, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1230 0, 0, 0, 0, 0, /* Lum/Int/Index/Depth/StencilBits */
1231 1, 1, 1 /* BlockWidth/Height,Bytes */
1234 MESA_FORMAT_SIGNED_RG88_REV
,
1235 "MESA_FORMAT_SIGNED_RG88_REV",
1237 GL_SIGNED_NORMALIZED
,
1243 MESA_FORMAT_SIGNED_RGBX8888
,
1244 "MESA_FORMAT_SIGNED_RGBX8888",
1246 GL_SIGNED_NORMALIZED
,
1249 1, 1, 4 /* 4 bpp, but no alpha */
1252 MESA_FORMAT_SIGNED_RGBA8888
,
1253 "MESA_FORMAT_SIGNED_RGBA8888",
1255 GL_SIGNED_NORMALIZED
,
1261 MESA_FORMAT_SIGNED_RGBA8888_REV
,
1262 "MESA_FORMAT_SIGNED_RGBA8888_REV",
1264 GL_SIGNED_NORMALIZED
,
1270 /* Signed 16 bits / channel */
1272 MESA_FORMAT_SIGNED_R16
,
1273 "MESA_FORMAT_SIGNED_R16",
1275 GL_SIGNED_NORMALIZED
,
1281 MESA_FORMAT_SIGNED_GR1616
,
1282 "MESA_FORMAT_SIGNED_GR1616",
1284 GL_SIGNED_NORMALIZED
,
1290 MESA_FORMAT_SIGNED_RGB_16
,
1291 "MESA_FORMAT_SIGNED_RGB_16",
1293 GL_SIGNED_NORMALIZED
,
1299 MESA_FORMAT_SIGNED_RGBA_16
,
1300 "MESA_FORMAT_SIGNED_RGBA_16",
1302 GL_SIGNED_NORMALIZED
,
1308 MESA_FORMAT_RGBA_16
,
1309 "MESA_FORMAT_RGBA_16",
1311 GL_UNSIGNED_NORMALIZED
,
1317 MESA_FORMAT_RED_RGTC1
,
1318 "MESA_FORMAT_RED_RGTC1",
1320 GL_UNSIGNED_NORMALIZED
,
1323 4, 4, 8 /* 8 bytes per 4x4 block */
1326 MESA_FORMAT_SIGNED_RED_RGTC1
,
1327 "MESA_FORMAT_SIGNED_RED_RGTC1",
1329 GL_SIGNED_NORMALIZED
,
1332 4, 4, 8 /* 8 bytes per 4x4 block */
1335 MESA_FORMAT_RG_RGTC2
,
1336 "MESA_FORMAT_RG_RGTC2",
1338 GL_UNSIGNED_NORMALIZED
,
1341 4, 4, 16 /* 16 bytes per 4x4 block */
1344 MESA_FORMAT_SIGNED_RG_RGTC2
,
1345 "MESA_FORMAT_SIGNED_RG_RGTC2",
1347 GL_SIGNED_NORMALIZED
,
1350 4, 4, 16 /* 16 bytes per 4x4 block */
1353 MESA_FORMAT_L_LATC1
,
1354 "MESA_FORMAT_L_LATC1",
1356 GL_UNSIGNED_NORMALIZED
,
1359 4, 4, 8 /* 8 bytes per 4x4 block */
1362 MESA_FORMAT_SIGNED_L_LATC1
,
1363 "MESA_FORMAT_SIGNED_L_LATC1",
1365 GL_SIGNED_NORMALIZED
,
1368 4, 4, 8 /* 8 bytes per 4x4 block */
1371 MESA_FORMAT_LA_LATC2
,
1372 "MESA_FORMAT_LA_LATC2",
1374 GL_UNSIGNED_NORMALIZED
,
1377 4, 4, 16 /* 16 bytes per 4x4 block */
1380 MESA_FORMAT_SIGNED_LA_LATC2
,
1381 "MESA_FORMAT_SIGNED_LA_LATC2",
1383 GL_SIGNED_NORMALIZED
,
1386 4, 4, 16 /* 16 bytes per 4x4 block */
1390 MESA_FORMAT_ETC1_RGB8
,
1391 "MESA_FORMAT_ETC1_RGB8",
1393 GL_UNSIGNED_NORMALIZED
,
1396 4, 4, 8 /* 8 bytes per 4x4 block */
1399 /* Signed formats from EXT_texture_snorm that are not in GL3.1 */
1401 MESA_FORMAT_SIGNED_A8
,
1402 "MESA_FORMAT_SIGNED_A8",
1404 GL_SIGNED_NORMALIZED
,
1410 MESA_FORMAT_SIGNED_L8
,
1411 "MESA_FORMAT_SIGNED_L8",
1413 GL_SIGNED_NORMALIZED
,
1419 MESA_FORMAT_SIGNED_AL88
,
1420 "MESA_FORMAT_SIGNED_AL88",
1422 GL_SIGNED_NORMALIZED
,
1428 MESA_FORMAT_SIGNED_I8
,
1429 "MESA_FORMAT_SIGNED_I8",
1431 GL_SIGNED_NORMALIZED
,
1437 MESA_FORMAT_SIGNED_A16
,
1438 "MESA_FORMAT_SIGNED_A16",
1440 GL_SIGNED_NORMALIZED
,
1446 MESA_FORMAT_SIGNED_L16
,
1447 "MESA_FORMAT_SIGNED_L16",
1449 GL_SIGNED_NORMALIZED
,
1455 MESA_FORMAT_SIGNED_AL1616
,
1456 "MESA_FORMAT_SIGNED_AL1616",
1458 GL_SIGNED_NORMALIZED
,
1464 MESA_FORMAT_SIGNED_I16
,
1465 "MESA_FORMAT_SIGNED_I16",
1467 GL_SIGNED_NORMALIZED
,
1473 MESA_FORMAT_RGB9_E5_FLOAT
,
1474 "MESA_FORMAT_RGB9_E5",
1482 MESA_FORMAT_R11_G11_B10_FLOAT
,
1483 "MESA_FORMAT_R11_G11_B10_FLOAT",
1490 /* ARB_depth_buffer_float */
1492 MESA_FORMAT_Z32_FLOAT
, /* Name */
1493 "MESA_FORMAT_Z32_FLOAT", /* StrName */
1494 GL_DEPTH_COMPONENT
, /* BaseFormat */
1495 GL_FLOAT
, /* DataType */
1496 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1497 0, 0, 0, 32, 0, /* Lum/Int/Index/Depth/StencilBits */
1498 1, 1, 4 /* BlockWidth/Height,Bytes */
1501 MESA_FORMAT_Z32_FLOAT_X24S8
, /* Name */
1502 "MESA_FORMAT_Z32_FLOAT_X24S8", /* StrName */
1503 GL_DEPTH_STENCIL
, /* BaseFormat */
1504 /* DataType here is used to answer GL_TEXTURE_DEPTH_TYPE queries, and is
1505 * never used for stencil because stencil is always GL_UNSIGNED_INT.
1507 GL_FLOAT
, /* DataType */
1508 0, 0, 0, 0, /* Red/Green/Blue/AlphaBits */
1509 0, 0, 0, 32, 8, /* Lum/Int/Index/Depth/StencilBits */
1510 1, 1, 8 /* BlockWidth/Height,Bytes */
1513 MESA_FORMAT_ARGB2101010_UINT
,
1514 "MESA_FORMAT_ARGB2101010_UINT",
1525 static const struct gl_format_info
*
1526 _mesa_get_format_info(gl_format format
)
1528 const struct gl_format_info
*info
= &format_info
[format
];
1529 assert(info
->Name
== format
);
1534 /** Return string name of format (for debugging) */
1536 _mesa_get_format_name(gl_format format
)
1538 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1539 return info
->StrName
;
1545 * Return bytes needed to store a block of pixels in the given format.
1546 * Normally, a block is 1x1 (a single pixel). But for compressed formats
1547 * a block may be 4x4 or 8x4, etc.
1549 * Note: not GLuint, so as not to coerce math to unsigned. cf. fdo #37351
1552 _mesa_get_format_bytes(gl_format format
)
1554 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1555 ASSERT(info
->BytesPerBlock
);
1556 return info
->BytesPerBlock
;
1561 * Return bits per component for the given format.
1562 * \param format one of MESA_FORMAT_x
1563 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1566 _mesa_get_format_bits(gl_format format
, GLenum pname
)
1568 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1572 case GL_TEXTURE_RED_SIZE
:
1573 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1574 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1575 return info
->RedBits
;
1577 case GL_TEXTURE_GREEN_SIZE
:
1578 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1579 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1580 return info
->GreenBits
;
1582 case GL_TEXTURE_BLUE_SIZE
:
1583 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1584 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1585 return info
->BlueBits
;
1587 case GL_TEXTURE_ALPHA_SIZE
:
1588 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1589 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1590 return info
->AlphaBits
;
1591 case GL_TEXTURE_INTENSITY_SIZE
:
1592 return info
->IntensityBits
;
1593 case GL_TEXTURE_LUMINANCE_SIZE
:
1594 return info
->LuminanceBits
;
1596 return info
->IndexBits
;
1598 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1599 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1600 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1601 return info
->DepthBits
;
1602 case GL_STENCIL_BITS
:
1603 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1604 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1605 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1606 return info
->StencilBits
;
1608 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
1615 * Return the data type (or more specifically, the data representation)
1616 * for the given format.
1617 * The return value will be one of:
1618 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1619 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1620 * GL_UNSIGNED_INT = an ordinary unsigned integer
1621 * GL_INT = an ordinary signed integer
1622 * GL_FLOAT = an ordinary float
1625 _mesa_get_format_datatype(gl_format format
)
1627 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1628 return info
->DataType
;
1633 * Return the basic format for the given type. The result will be one of
1634 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1635 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1638 _mesa_get_format_base_format(gl_format format
)
1640 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1641 return info
->BaseFormat
;
1646 * Return the block size (in pixels) for the given format. Normally
1647 * the block size is 1x1. But compressed formats will have block sizes
1648 * of 4x4 or 8x4 pixels, etc.
1649 * \param bw returns block width in pixels
1650 * \param bh returns block height in pixels
1653 _mesa_get_format_block_size(gl_format format
, GLuint
*bw
, GLuint
*bh
)
1655 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1656 *bw
= info
->BlockWidth
;
1657 *bh
= info
->BlockHeight
;
1661 /** Is the given format a compressed format? */
1663 _mesa_is_format_compressed(gl_format format
)
1665 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1666 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
1671 * Determine if the given format represents a packed depth/stencil buffer.
1674 _mesa_is_format_packed_depth_stencil(gl_format format
)
1676 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1678 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
1683 * Is the given format a signed/unsigned integer color format?
1686 _mesa_is_format_integer_color(gl_format format
)
1688 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1689 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
1690 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
1691 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
1692 info
->BaseFormat
!= GL_STENCIL_INDEX
;
1697 * Return color encoding for given format.
1698 * \return GL_LINEAR or GL_SRGB
1701 _mesa_get_format_color_encoding(gl_format format
)
1703 /* XXX this info should be encoded in gl_format_info */
1705 case MESA_FORMAT_SRGB8
:
1706 case MESA_FORMAT_SRGBA8
:
1707 case MESA_FORMAT_SARGB8
:
1708 case MESA_FORMAT_SL8
:
1709 case MESA_FORMAT_SLA8
:
1710 case MESA_FORMAT_SRGB_DXT1
:
1711 case MESA_FORMAT_SRGBA_DXT1
:
1712 case MESA_FORMAT_SRGBA_DXT3
:
1713 case MESA_FORMAT_SRGBA_DXT5
:
1722 * For an sRGB format, return the corresponding linear color space format.
1723 * For non-sRGB formats, return the format as-is.
1726 _mesa_get_srgb_format_linear(gl_format format
)
1729 case MESA_FORMAT_SRGB8
:
1730 format
= MESA_FORMAT_RGB888
;
1732 case MESA_FORMAT_SRGBA8
:
1733 format
= MESA_FORMAT_RGBA8888
;
1735 case MESA_FORMAT_SARGB8
:
1736 format
= MESA_FORMAT_ARGB8888
;
1738 case MESA_FORMAT_SL8
:
1739 format
= MESA_FORMAT_L8
;
1741 case MESA_FORMAT_SLA8
:
1742 format
= MESA_FORMAT_AL88
;
1744 case MESA_FORMAT_SRGB_DXT1
:
1745 format
= MESA_FORMAT_RGB_DXT1
;
1747 case MESA_FORMAT_SRGBA_DXT1
:
1748 format
= MESA_FORMAT_RGBA_DXT1
;
1750 case MESA_FORMAT_SRGBA_DXT3
:
1751 format
= MESA_FORMAT_RGBA_DXT3
;
1753 case MESA_FORMAT_SRGBA_DXT5
:
1754 format
= MESA_FORMAT_RGBA_DXT5
;
1764 * If the given format is a compressed format, return a corresponding
1765 * uncompressed format.
1768 _mesa_get_uncompressed_format(gl_format format
)
1771 case MESA_FORMAT_RGB_FXT1
:
1772 return MESA_FORMAT_RGB888
;
1773 case MESA_FORMAT_RGBA_FXT1
:
1774 return MESA_FORMAT_RGBA8888
;
1775 case MESA_FORMAT_RGB_DXT1
:
1776 case MESA_FORMAT_SRGB_DXT1
:
1777 return MESA_FORMAT_RGB888
;
1778 case MESA_FORMAT_RGBA_DXT1
:
1779 case MESA_FORMAT_SRGBA_DXT1
:
1780 return MESA_FORMAT_RGBA8888
;
1781 case MESA_FORMAT_RGBA_DXT3
:
1782 case MESA_FORMAT_SRGBA_DXT3
:
1783 return MESA_FORMAT_RGBA8888
;
1784 case MESA_FORMAT_RGBA_DXT5
:
1785 case MESA_FORMAT_SRGBA_DXT5
:
1786 return MESA_FORMAT_RGBA8888
;
1787 case MESA_FORMAT_RED_RGTC1
:
1788 return MESA_FORMAT_R8
;
1789 case MESA_FORMAT_SIGNED_RED_RGTC1
:
1790 return MESA_FORMAT_SIGNED_R8
;
1791 case MESA_FORMAT_RG_RGTC2
:
1792 return MESA_FORMAT_GR88
;
1793 case MESA_FORMAT_SIGNED_RG_RGTC2
:
1794 return MESA_FORMAT_SIGNED_RG88_REV
;
1795 case MESA_FORMAT_L_LATC1
:
1796 return MESA_FORMAT_L8
;
1797 case MESA_FORMAT_SIGNED_L_LATC1
:
1798 return MESA_FORMAT_SIGNED_L8
;
1799 case MESA_FORMAT_LA_LATC2
:
1800 return MESA_FORMAT_AL88
;
1801 case MESA_FORMAT_SIGNED_LA_LATC2
:
1802 return MESA_FORMAT_SIGNED_AL88
;
1803 case MESA_FORMAT_ETC1_RGB8
:
1804 return MESA_FORMAT_RGB888
;
1807 assert(!_mesa_is_format_compressed(format
));
1815 _mesa_format_num_components(gl_format format
)
1817 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1818 return ((info
->RedBits
> 0) +
1819 (info
->GreenBits
> 0) +
1820 (info
->BlueBits
> 0) +
1821 (info
->AlphaBits
> 0) +
1822 (info
->LuminanceBits
> 0) +
1823 (info
->IntensityBits
> 0) +
1824 (info
->DepthBits
> 0) +
1825 (info
->StencilBits
> 0));
1830 * Return number of bytes needed to store an image of the given size
1831 * in the given format.
1834 _mesa_format_image_size(gl_format format
, GLsizei width
,
1835 GLsizei height
, GLsizei depth
)
1837 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1838 /* Strictly speaking, a conditional isn't needed here */
1839 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1840 /* compressed format (2D only for now) */
1841 const GLuint bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1842 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1843 const GLuint hblocks
= (height
+ bh
- 1) / bh
;
1844 const GLuint sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1849 /* non-compressed */
1850 const GLuint sz
= width
* height
* depth
* info
->BytesPerBlock
;
1857 * Same as _mesa_format_image_size() but returns a 64-bit value to
1858 * accomodate very large textures.
1861 _mesa_format_image_size64(gl_format format
, GLsizei width
,
1862 GLsizei height
, GLsizei depth
)
1864 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1865 /* Strictly speaking, a conditional isn't needed here */
1866 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1867 /* compressed format (2D only for now) */
1868 const uint64_t bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1869 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
1870 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
1871 const uint64_t sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1876 /* non-compressed */
1877 const uint64_t sz
= ((uint64_t) width
*
1880 info
->BytesPerBlock
);
1888 _mesa_format_row_stride(gl_format format
, GLsizei width
)
1890 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1891 /* Strictly speaking, a conditional isn't needed here */
1892 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1893 /* compressed format */
1894 const GLuint bw
= info
->BlockWidth
;
1895 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1896 const GLint stride
= wblocks
* info
->BytesPerBlock
;
1900 const GLint stride
= width
* info
->BytesPerBlock
;
1907 * Debug/test: check that all formats are handled in the
1908 * _mesa_format_to_type_and_comps() function. When new pixel formats
1909 * are added to Mesa, that function needs to be updated.
1910 * This is a no-op after the first call.
1913 check_format_to_type_and_comps(void)
1917 for (f
= MESA_FORMAT_NONE
+ 1; f
< MESA_FORMAT_COUNT
; f
++) {
1918 GLenum datatype
= 0;
1920 /* This function will emit a problem/warning if the format is
1923 _mesa_format_to_type_and_comps(f
, &datatype
, &comps
);
1929 * Do sanity checking of the format info table.
1932 _mesa_test_formats(void)
1936 assert(Elements(format_info
) == MESA_FORMAT_COUNT
);
1938 for (i
= 0; i
< MESA_FORMAT_COUNT
; i
++) {
1939 const struct gl_format_info
*info
= _mesa_get_format_info(i
);
1942 assert(info
->Name
== i
);
1944 if (info
->Name
== MESA_FORMAT_NONE
)
1947 if (info
->BlockWidth
== 1 && info
->BlockHeight
== 1) {
1948 if (info
->RedBits
> 0) {
1949 GLuint t
= info
->RedBits
+ info
->GreenBits
1950 + info
->BlueBits
+ info
->AlphaBits
;
1951 assert(t
/ 8 <= info
->BytesPerBlock
);
1956 assert(info
->DataType
== GL_UNSIGNED_NORMALIZED
||
1957 info
->DataType
== GL_SIGNED_NORMALIZED
||
1958 info
->DataType
== GL_UNSIGNED_INT
||
1959 info
->DataType
== GL_INT
||
1960 info
->DataType
== GL_FLOAT
||
1961 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1962 info
->DataType
== GL_NONE
);
1964 if (info
->BaseFormat
== GL_RGB
) {
1965 assert(info
->RedBits
> 0);
1966 assert(info
->GreenBits
> 0);
1967 assert(info
->BlueBits
> 0);
1968 assert(info
->AlphaBits
== 0);
1969 assert(info
->LuminanceBits
== 0);
1970 assert(info
->IntensityBits
== 0);
1972 else if (info
->BaseFormat
== GL_RGBA
) {
1973 assert(info
->RedBits
> 0);
1974 assert(info
->GreenBits
> 0);
1975 assert(info
->BlueBits
> 0);
1976 assert(info
->AlphaBits
> 0);
1977 assert(info
->LuminanceBits
== 0);
1978 assert(info
->IntensityBits
== 0);
1980 else if (info
->BaseFormat
== GL_RG
) {
1981 assert(info
->RedBits
> 0);
1982 assert(info
->GreenBits
> 0);
1983 assert(info
->BlueBits
== 0);
1984 assert(info
->AlphaBits
== 0);
1985 assert(info
->LuminanceBits
== 0);
1986 assert(info
->IntensityBits
== 0);
1988 else if (info
->BaseFormat
== GL_RED
) {
1989 assert(info
->RedBits
> 0);
1990 assert(info
->GreenBits
== 0);
1991 assert(info
->BlueBits
== 0);
1992 assert(info
->AlphaBits
== 0);
1993 assert(info
->LuminanceBits
== 0);
1994 assert(info
->IntensityBits
== 0);
1996 else if (info
->BaseFormat
== GL_LUMINANCE
) {
1997 assert(info
->RedBits
== 0);
1998 assert(info
->GreenBits
== 0);
1999 assert(info
->BlueBits
== 0);
2000 assert(info
->AlphaBits
== 0);
2001 assert(info
->LuminanceBits
> 0);
2002 assert(info
->IntensityBits
== 0);
2004 else if (info
->BaseFormat
== GL_INTENSITY
) {
2005 assert(info
->RedBits
== 0);
2006 assert(info
->GreenBits
== 0);
2007 assert(info
->BlueBits
== 0);
2008 assert(info
->AlphaBits
== 0);
2009 assert(info
->LuminanceBits
== 0);
2010 assert(info
->IntensityBits
> 0);
2014 check_format_to_type_and_comps();
2020 * Return datatype and number of components per texel for the given gl_format.
2021 * Only used for mipmap generation code.
2024 _mesa_format_to_type_and_comps(gl_format format
,
2025 GLenum
*datatype
, GLuint
*comps
)
2028 case MESA_FORMAT_RGBA8888
:
2029 case MESA_FORMAT_RGBA8888_REV
:
2030 case MESA_FORMAT_ARGB8888
:
2031 case MESA_FORMAT_ARGB8888_REV
:
2032 case MESA_FORMAT_RGBX8888
:
2033 case MESA_FORMAT_RGBX8888_REV
:
2034 case MESA_FORMAT_XRGB8888
:
2035 case MESA_FORMAT_XRGB8888_REV
:
2036 *datatype
= GL_UNSIGNED_BYTE
;
2039 case MESA_FORMAT_RGB888
:
2040 case MESA_FORMAT_BGR888
:
2041 *datatype
= GL_UNSIGNED_BYTE
;
2044 case MESA_FORMAT_RGB565
:
2045 case MESA_FORMAT_RGB565_REV
:
2046 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
2050 case MESA_FORMAT_ARGB4444
:
2051 case MESA_FORMAT_ARGB4444_REV
:
2052 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
2056 case MESA_FORMAT_ARGB1555
:
2057 case MESA_FORMAT_ARGB1555_REV
:
2058 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2062 case MESA_FORMAT_ARGB2101010
:
2063 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2067 case MESA_FORMAT_RGBA5551
:
2068 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
2072 case MESA_FORMAT_AL44
:
2073 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
2077 case MESA_FORMAT_AL88
:
2078 case MESA_FORMAT_AL88_REV
:
2079 case MESA_FORMAT_GR88
:
2080 case MESA_FORMAT_RG88_REV
:
2081 *datatype
= GL_UNSIGNED_BYTE
;
2085 case MESA_FORMAT_AL1616
:
2086 case MESA_FORMAT_AL1616_REV
:
2087 case MESA_FORMAT_RG1616
:
2088 case MESA_FORMAT_RG1616_REV
:
2089 *datatype
= GL_UNSIGNED_SHORT
;
2093 case MESA_FORMAT_R16
:
2094 case MESA_FORMAT_A16
:
2095 case MESA_FORMAT_L16
:
2096 case MESA_FORMAT_I16
:
2097 *datatype
= GL_UNSIGNED_SHORT
;
2101 case MESA_FORMAT_RGB332
:
2102 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
2106 case MESA_FORMAT_A8
:
2107 case MESA_FORMAT_L8
:
2108 case MESA_FORMAT_I8
:
2109 case MESA_FORMAT_R8
:
2110 case MESA_FORMAT_S8
:
2111 *datatype
= GL_UNSIGNED_BYTE
;
2115 case MESA_FORMAT_YCBCR
:
2116 case MESA_FORMAT_YCBCR_REV
:
2117 *datatype
= GL_UNSIGNED_SHORT
;
2121 case MESA_FORMAT_Z24_S8
:
2122 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
2126 case MESA_FORMAT_S8_Z24
:
2127 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
2131 case MESA_FORMAT_Z16
:
2132 *datatype
= GL_UNSIGNED_SHORT
;
2136 case MESA_FORMAT_X8_Z24
:
2137 *datatype
= GL_UNSIGNED_INT
;
2141 case MESA_FORMAT_Z24_X8
:
2142 *datatype
= GL_UNSIGNED_INT
;
2146 case MESA_FORMAT_Z32
:
2147 *datatype
= GL_UNSIGNED_INT
;
2151 case MESA_FORMAT_Z32_FLOAT
:
2152 *datatype
= GL_FLOAT
;
2156 case MESA_FORMAT_Z32_FLOAT_X24S8
:
2157 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
2161 case MESA_FORMAT_DUDV8
:
2162 *datatype
= GL_BYTE
;
2166 case MESA_FORMAT_SIGNED_R8
:
2167 case MESA_FORMAT_SIGNED_A8
:
2168 case MESA_FORMAT_SIGNED_L8
:
2169 case MESA_FORMAT_SIGNED_I8
:
2170 *datatype
= GL_BYTE
;
2173 case MESA_FORMAT_SIGNED_RG88_REV
:
2174 case MESA_FORMAT_SIGNED_AL88
:
2175 *datatype
= GL_BYTE
;
2178 case MESA_FORMAT_SIGNED_RGBA8888
:
2179 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2180 case MESA_FORMAT_SIGNED_RGBX8888
:
2181 *datatype
= GL_BYTE
;
2185 case MESA_FORMAT_RGBA_16
:
2186 *datatype
= GL_UNSIGNED_SHORT
;
2190 case MESA_FORMAT_SIGNED_R16
:
2191 case MESA_FORMAT_SIGNED_A16
:
2192 case MESA_FORMAT_SIGNED_L16
:
2193 case MESA_FORMAT_SIGNED_I16
:
2194 *datatype
= GL_SHORT
;
2197 case MESA_FORMAT_SIGNED_GR1616
:
2198 case MESA_FORMAT_SIGNED_AL1616
:
2199 *datatype
= GL_SHORT
;
2202 case MESA_FORMAT_SIGNED_RGB_16
:
2203 *datatype
= GL_SHORT
;
2206 case MESA_FORMAT_SIGNED_RGBA_16
:
2207 *datatype
= GL_SHORT
;
2211 #if FEATURE_EXT_texture_sRGB
2212 case MESA_FORMAT_SRGB8
:
2213 *datatype
= GL_UNSIGNED_BYTE
;
2216 case MESA_FORMAT_SRGBA8
:
2217 case MESA_FORMAT_SARGB8
:
2218 *datatype
= GL_UNSIGNED_BYTE
;
2221 case MESA_FORMAT_SL8
:
2222 *datatype
= GL_UNSIGNED_BYTE
;
2225 case MESA_FORMAT_SLA8
:
2226 *datatype
= GL_UNSIGNED_BYTE
;
2231 #if FEATURE_texture_fxt1
2232 case MESA_FORMAT_RGB_FXT1
:
2233 case MESA_FORMAT_RGBA_FXT1
:
2235 #if FEATURE_texture_s3tc
2236 case MESA_FORMAT_RGB_DXT1
:
2237 case MESA_FORMAT_RGBA_DXT1
:
2238 case MESA_FORMAT_RGBA_DXT3
:
2239 case MESA_FORMAT_RGBA_DXT5
:
2240 #if FEATURE_EXT_texture_sRGB
2241 case MESA_FORMAT_SRGB_DXT1
:
2242 case MESA_FORMAT_SRGBA_DXT1
:
2243 case MESA_FORMAT_SRGBA_DXT3
:
2244 case MESA_FORMAT_SRGBA_DXT5
:
2247 case MESA_FORMAT_RED_RGTC1
:
2248 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2249 case MESA_FORMAT_RG_RGTC2
:
2250 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2251 case MESA_FORMAT_L_LATC1
:
2252 case MESA_FORMAT_SIGNED_L_LATC1
:
2253 case MESA_FORMAT_LA_LATC2
:
2254 case MESA_FORMAT_SIGNED_LA_LATC2
:
2255 case MESA_FORMAT_ETC1_RGB8
:
2256 /* XXX generate error instead? */
2257 *datatype
= GL_UNSIGNED_BYTE
;
2261 case MESA_FORMAT_RGBA_FLOAT32
:
2262 *datatype
= GL_FLOAT
;
2265 case MESA_FORMAT_RGBA_FLOAT16
:
2266 *datatype
= GL_HALF_FLOAT_ARB
;
2269 case MESA_FORMAT_RGB_FLOAT32
:
2270 *datatype
= GL_FLOAT
;
2273 case MESA_FORMAT_RGB_FLOAT16
:
2274 *datatype
= GL_HALF_FLOAT_ARB
;
2277 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2278 case MESA_FORMAT_RG_FLOAT32
:
2279 *datatype
= GL_FLOAT
;
2282 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2283 case MESA_FORMAT_RG_FLOAT16
:
2284 *datatype
= GL_HALF_FLOAT_ARB
;
2287 case MESA_FORMAT_ALPHA_FLOAT32
:
2288 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2289 case MESA_FORMAT_INTENSITY_FLOAT32
:
2290 case MESA_FORMAT_R_FLOAT32
:
2291 *datatype
= GL_FLOAT
;
2294 case MESA_FORMAT_ALPHA_FLOAT16
:
2295 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2296 case MESA_FORMAT_INTENSITY_FLOAT16
:
2297 case MESA_FORMAT_R_FLOAT16
:
2298 *datatype
= GL_HALF_FLOAT_ARB
;
2302 case MESA_FORMAT_ALPHA_UINT8
:
2303 case MESA_FORMAT_LUMINANCE_UINT8
:
2304 case MESA_FORMAT_INTENSITY_UINT8
:
2305 *datatype
= GL_UNSIGNED_BYTE
;
2308 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2309 *datatype
= GL_UNSIGNED_BYTE
;
2313 case MESA_FORMAT_ALPHA_UINT16
:
2314 case MESA_FORMAT_LUMINANCE_UINT16
:
2315 case MESA_FORMAT_INTENSITY_UINT16
:
2316 *datatype
= GL_UNSIGNED_SHORT
;
2319 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2320 *datatype
= GL_UNSIGNED_SHORT
;
2323 case MESA_FORMAT_ALPHA_UINT32
:
2324 case MESA_FORMAT_LUMINANCE_UINT32
:
2325 case MESA_FORMAT_INTENSITY_UINT32
:
2326 *datatype
= GL_UNSIGNED_INT
;
2329 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2330 *datatype
= GL_UNSIGNED_INT
;
2333 case MESA_FORMAT_ALPHA_INT8
:
2334 case MESA_FORMAT_LUMINANCE_INT8
:
2335 case MESA_FORMAT_INTENSITY_INT8
:
2336 *datatype
= GL_BYTE
;
2339 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2340 *datatype
= GL_BYTE
;
2344 case MESA_FORMAT_ALPHA_INT16
:
2345 case MESA_FORMAT_LUMINANCE_INT16
:
2346 case MESA_FORMAT_INTENSITY_INT16
:
2347 *datatype
= GL_SHORT
;
2350 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2351 *datatype
= GL_SHORT
;
2355 case MESA_FORMAT_ALPHA_INT32
:
2356 case MESA_FORMAT_LUMINANCE_INT32
:
2357 case MESA_FORMAT_INTENSITY_INT32
:
2361 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2366 case MESA_FORMAT_R_INT8
:
2367 *datatype
= GL_BYTE
;
2370 case MESA_FORMAT_RG_INT8
:
2371 *datatype
= GL_BYTE
;
2374 case MESA_FORMAT_RGB_INT8
:
2375 *datatype
= GL_BYTE
;
2378 case MESA_FORMAT_RGBA_INT8
:
2379 *datatype
= GL_BYTE
;
2382 case MESA_FORMAT_R_INT16
:
2383 *datatype
= GL_SHORT
;
2386 case MESA_FORMAT_RG_INT16
:
2387 *datatype
= GL_SHORT
;
2390 case MESA_FORMAT_RGB_INT16
:
2391 *datatype
= GL_SHORT
;
2394 case MESA_FORMAT_RGBA_INT16
:
2395 *datatype
= GL_SHORT
;
2398 case MESA_FORMAT_R_INT32
:
2402 case MESA_FORMAT_RG_INT32
:
2406 case MESA_FORMAT_RGB_INT32
:
2410 case MESA_FORMAT_RGBA_INT32
:
2416 * \name Non-normalized unsigned integer formats.
2418 case MESA_FORMAT_R_UINT8
:
2419 *datatype
= GL_UNSIGNED_BYTE
;
2422 case MESA_FORMAT_RG_UINT8
:
2423 *datatype
= GL_UNSIGNED_BYTE
;
2426 case MESA_FORMAT_RGB_UINT8
:
2427 *datatype
= GL_UNSIGNED_BYTE
;
2430 case MESA_FORMAT_RGBA_UINT8
:
2431 *datatype
= GL_UNSIGNED_BYTE
;
2434 case MESA_FORMAT_R_UINT16
:
2435 *datatype
= GL_UNSIGNED_SHORT
;
2438 case MESA_FORMAT_RG_UINT16
:
2439 *datatype
= GL_UNSIGNED_SHORT
;
2442 case MESA_FORMAT_RGB_UINT16
:
2443 *datatype
= GL_UNSIGNED_SHORT
;
2446 case MESA_FORMAT_RGBA_UINT16
:
2447 *datatype
= GL_UNSIGNED_SHORT
;
2450 case MESA_FORMAT_R_UINT32
:
2451 *datatype
= GL_UNSIGNED_INT
;
2454 case MESA_FORMAT_RG_UINT32
:
2455 *datatype
= GL_UNSIGNED_INT
;
2458 case MESA_FORMAT_RGB_UINT32
:
2459 *datatype
= GL_UNSIGNED_INT
;
2462 case MESA_FORMAT_RGBA_UINT32
:
2463 *datatype
= GL_UNSIGNED_INT
;
2467 case MESA_FORMAT_RGB9_E5_FLOAT
:
2468 *datatype
= GL_UNSIGNED_INT_5_9_9_9_REV
;
2472 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2473 *datatype
= GL_UNSIGNED_INT_10F_11F_11F_REV
;
2477 case MESA_FORMAT_ARGB2101010_UINT
:
2478 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2482 case MESA_FORMAT_COUNT
:
2486 case MESA_FORMAT_NONE
:
2487 /* For debug builds, warn if any formats are not handled */
2491 _mesa_problem(NULL
, "bad format %s in _mesa_format_to_type_and_comps",
2492 _mesa_get_format_name(format
));
2499 * Check if a gl_format exactly matches a GL formaat/type combination
2500 * such that we can use memcpy() from one to the other.
2502 * Note: this matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2504 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2507 _mesa_format_matches_format_and_type(gl_format gl_format
,
2508 GLenum format
, GLenum type
)
2510 const GLboolean littleEndian
= _mesa_little_endian();
2512 /* Note: When reading a GL format/type combination, the format lists channel
2513 * assignments from most significant channel in the type to least
2514 * significant. A type with _REV indicates that the assignments are
2515 * swapped, so they are listed from least significant to most significant.
2517 * For sanity, please keep this switch statement ordered the same as the
2518 * enums in formats.h.
2521 switch (gl_format
) {
2523 case MESA_FORMAT_NONE
:
2524 case MESA_FORMAT_COUNT
:
2527 case MESA_FORMAT_RGBA8888
:
2528 return ((format
== GL_RGBA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2529 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))) ||
2530 (format
== GL_ABGR_EXT
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2531 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2533 case MESA_FORMAT_RGBA8888_REV
:
2534 return ((format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
));
2536 case MESA_FORMAT_ARGB8888
:
2537 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2538 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2540 case MESA_FORMAT_ARGB8888_REV
:
2541 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2542 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))));
2544 case MESA_FORMAT_RGBX8888
:
2545 case MESA_FORMAT_RGBX8888_REV
:
2548 case MESA_FORMAT_XRGB8888
:
2549 case MESA_FORMAT_XRGB8888_REV
:
2552 case MESA_FORMAT_RGB888
:
2553 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2555 case MESA_FORMAT_BGR888
:
2558 case MESA_FORMAT_RGB565
:
2559 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
;
2560 case MESA_FORMAT_RGB565_REV
:
2561 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2562 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2563 * according to formats.h, so they can't be matched.
2567 case MESA_FORMAT_ARGB4444
:
2568 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
;
2569 case MESA_FORMAT_ARGB4444_REV
:
2572 case MESA_FORMAT_RGBA5551
:
2573 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
;
2575 case MESA_FORMAT_ARGB1555
:
2576 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2577 case MESA_FORMAT_ARGB1555_REV
:
2580 case MESA_FORMAT_AL44
:
2582 case MESA_FORMAT_AL88
:
2583 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2584 case MESA_FORMAT_AL88_REV
:
2587 case MESA_FORMAT_AL1616
:
2588 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2589 case MESA_FORMAT_AL1616_REV
:
2592 case MESA_FORMAT_RGB332
:
2593 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
2595 case MESA_FORMAT_A8
:
2596 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
2597 case MESA_FORMAT_A16
:
2598 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2599 case MESA_FORMAT_L8
:
2600 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
2601 case MESA_FORMAT_L16
:
2602 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2603 case MESA_FORMAT_I8
:
2604 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_BYTE
;
2605 case MESA_FORMAT_I16
:
2606 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2608 case MESA_FORMAT_YCBCR
:
2609 case MESA_FORMAT_YCBCR_REV
:
2612 case MESA_FORMAT_R8
:
2613 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
2614 case MESA_FORMAT_GR88
:
2615 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2616 case MESA_FORMAT_RG88_REV
:
2619 case MESA_FORMAT_R16
:
2620 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2621 case MESA_FORMAT_RG1616
:
2622 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2623 case MESA_FORMAT_RG1616_REV
:
2626 case MESA_FORMAT_ARGB2101010
:
2627 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
;
2629 case MESA_FORMAT_Z24_S8
:
2630 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
;
2631 case MESA_FORMAT_Z24_X8
:
2632 case MESA_FORMAT_S8_Z24
:
2635 case MESA_FORMAT_Z16
:
2636 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
;
2638 case MESA_FORMAT_X8_Z24
:
2641 case MESA_FORMAT_Z32
:
2642 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
;
2644 case MESA_FORMAT_S8
:
2647 case MESA_FORMAT_SRGB8
:
2648 case MESA_FORMAT_SRGBA8
:
2649 case MESA_FORMAT_SARGB8
:
2650 case MESA_FORMAT_SL8
:
2651 case MESA_FORMAT_SLA8
:
2652 case MESA_FORMAT_SRGB_DXT1
:
2653 case MESA_FORMAT_SRGBA_DXT1
:
2654 case MESA_FORMAT_SRGBA_DXT3
:
2655 case MESA_FORMAT_SRGBA_DXT5
:
2658 case MESA_FORMAT_RGB_FXT1
:
2659 case MESA_FORMAT_RGBA_FXT1
:
2660 case MESA_FORMAT_RGB_DXT1
:
2661 case MESA_FORMAT_RGBA_DXT1
:
2662 case MESA_FORMAT_RGBA_DXT3
:
2663 case MESA_FORMAT_RGBA_DXT5
:
2666 case MESA_FORMAT_RGBA_FLOAT32
:
2667 return format
== GL_RGBA
&& type
== GL_FLOAT
;
2668 case MESA_FORMAT_RGBA_FLOAT16
:
2669 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
;
2671 case MESA_FORMAT_RGB_FLOAT32
:
2672 return format
== GL_RGB
&& type
== GL_FLOAT
;
2673 case MESA_FORMAT_RGB_FLOAT16
:
2674 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
;
2676 case MESA_FORMAT_ALPHA_FLOAT32
:
2677 return format
== GL_ALPHA
&& type
== GL_FLOAT
;
2678 case MESA_FORMAT_ALPHA_FLOAT16
:
2679 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
;
2681 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2682 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
;
2683 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2684 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
;
2686 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2687 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
;
2688 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2689 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
;
2691 case MESA_FORMAT_INTENSITY_FLOAT32
:
2692 return format
== GL_INTENSITY
&& type
== GL_FLOAT
;
2693 case MESA_FORMAT_INTENSITY_FLOAT16
:
2694 return format
== GL_INTENSITY
&& type
== GL_HALF_FLOAT
;
2696 case MESA_FORMAT_R_FLOAT32
:
2697 return format
== GL_RED
&& type
== GL_FLOAT
;
2698 case MESA_FORMAT_R_FLOAT16
:
2699 return format
== GL_RED
&& type
== GL_HALF_FLOAT
;
2701 case MESA_FORMAT_RG_FLOAT32
:
2702 return format
== GL_RG
&& type
== GL_FLOAT
;
2703 case MESA_FORMAT_RG_FLOAT16
:
2704 return format
== GL_RG
&& type
== GL_HALF_FLOAT
;
2706 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2707 case MESA_FORMAT_ALPHA_UINT8
:
2708 case MESA_FORMAT_ALPHA_UINT16
:
2709 case MESA_FORMAT_ALPHA_UINT32
:
2710 case MESA_FORMAT_ALPHA_INT8
:
2711 case MESA_FORMAT_ALPHA_INT16
:
2712 case MESA_FORMAT_ALPHA_INT32
:
2715 case MESA_FORMAT_INTENSITY_UINT8
:
2716 case MESA_FORMAT_INTENSITY_UINT16
:
2717 case MESA_FORMAT_INTENSITY_UINT32
:
2718 case MESA_FORMAT_INTENSITY_INT8
:
2719 case MESA_FORMAT_INTENSITY_INT16
:
2720 case MESA_FORMAT_INTENSITY_INT32
:
2723 case MESA_FORMAT_LUMINANCE_UINT8
:
2724 case MESA_FORMAT_LUMINANCE_UINT16
:
2725 case MESA_FORMAT_LUMINANCE_UINT32
:
2726 case MESA_FORMAT_LUMINANCE_INT8
:
2727 case MESA_FORMAT_LUMINANCE_INT16
:
2728 case MESA_FORMAT_LUMINANCE_INT32
:
2731 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2732 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2733 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2734 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2735 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2736 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2739 case MESA_FORMAT_R_INT8
:
2740 case MESA_FORMAT_RG_INT8
:
2741 case MESA_FORMAT_RGB_INT8
:
2742 case MESA_FORMAT_RGBA_INT8
:
2743 case MESA_FORMAT_R_INT16
:
2744 case MESA_FORMAT_RG_INT16
:
2745 case MESA_FORMAT_RGB_INT16
:
2746 case MESA_FORMAT_RGBA_INT16
:
2747 case MESA_FORMAT_R_INT32
:
2748 case MESA_FORMAT_RG_INT32
:
2749 case MESA_FORMAT_RGB_INT32
:
2750 case MESA_FORMAT_RGBA_INT32
:
2753 case MESA_FORMAT_R_UINT8
:
2754 case MESA_FORMAT_RG_UINT8
:
2755 case MESA_FORMAT_RGB_UINT8
:
2756 case MESA_FORMAT_RGBA_UINT8
:
2757 case MESA_FORMAT_R_UINT16
:
2758 case MESA_FORMAT_RG_UINT16
:
2759 case MESA_FORMAT_RGB_UINT16
:
2760 case MESA_FORMAT_RGBA_UINT16
:
2761 case MESA_FORMAT_R_UINT32
:
2762 case MESA_FORMAT_RG_UINT32
:
2763 case MESA_FORMAT_RGB_UINT32
:
2764 case MESA_FORMAT_RGBA_UINT32
:
2767 case MESA_FORMAT_DUDV8
:
2768 case MESA_FORMAT_SIGNED_R8
:
2769 case MESA_FORMAT_SIGNED_RG88_REV
:
2770 case MESA_FORMAT_SIGNED_RGBX8888
:
2771 case MESA_FORMAT_SIGNED_RGBA8888
:
2772 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2773 case MESA_FORMAT_SIGNED_R16
:
2774 case MESA_FORMAT_SIGNED_GR1616
:
2775 case MESA_FORMAT_SIGNED_RGB_16
:
2776 case MESA_FORMAT_SIGNED_RGBA_16
:
2777 case MESA_FORMAT_RGBA_16
:
2778 /* FINISHME: SNORM */
2781 case MESA_FORMAT_RED_RGTC1
:
2782 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2783 case MESA_FORMAT_RG_RGTC2
:
2784 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2787 case MESA_FORMAT_L_LATC1
:
2788 case MESA_FORMAT_SIGNED_L_LATC1
:
2789 case MESA_FORMAT_LA_LATC2
:
2790 case MESA_FORMAT_SIGNED_LA_LATC2
:
2793 case MESA_FORMAT_ETC1_RGB8
:
2796 case MESA_FORMAT_SIGNED_A8
:
2797 case MESA_FORMAT_SIGNED_L8
:
2798 case MESA_FORMAT_SIGNED_AL88
:
2799 case MESA_FORMAT_SIGNED_I8
:
2800 case MESA_FORMAT_SIGNED_A16
:
2801 case MESA_FORMAT_SIGNED_L16
:
2802 case MESA_FORMAT_SIGNED_AL1616
:
2803 case MESA_FORMAT_SIGNED_I16
:
2804 /* FINISHME: SNORM */
2807 case MESA_FORMAT_ARGB2101010_UINT
:
2810 case MESA_FORMAT_RGB9_E5_FLOAT
:
2811 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_5_9_9_9_REV
;
2812 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2813 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_10F_11F_11F_REV
;
2815 case MESA_FORMAT_Z32_FLOAT
:
2816 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
;
2818 case MESA_FORMAT_Z32_FLOAT_X24S8
: