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
,
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 ASSERT(info
->BytesPerBlock
<= MAX_PIXEL_BYTES
||
1557 _mesa_is_format_compressed(format
));
1558 return info
->BytesPerBlock
;
1563 * Return bits per component for the given format.
1564 * \param format one of MESA_FORMAT_x
1565 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
1568 _mesa_get_format_bits(gl_format format
, GLenum pname
)
1570 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1574 case GL_TEXTURE_RED_SIZE
:
1575 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1576 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1577 return info
->RedBits
;
1579 case GL_TEXTURE_GREEN_SIZE
:
1580 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1581 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1582 return info
->GreenBits
;
1584 case GL_TEXTURE_BLUE_SIZE
:
1585 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1586 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1587 return info
->BlueBits
;
1589 case GL_TEXTURE_ALPHA_SIZE
:
1590 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1591 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1592 return info
->AlphaBits
;
1593 case GL_TEXTURE_INTENSITY_SIZE
:
1594 return info
->IntensityBits
;
1595 case GL_TEXTURE_LUMINANCE_SIZE
:
1596 return info
->LuminanceBits
;
1598 return info
->IndexBits
;
1600 case GL_TEXTURE_DEPTH_SIZE_ARB
:
1601 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1602 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1603 return info
->DepthBits
;
1604 case GL_STENCIL_BITS
:
1605 case GL_TEXTURE_STENCIL_SIZE_EXT
:
1606 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1607 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1608 return info
->StencilBits
;
1610 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
1617 * Return the data type (or more specifically, the data representation)
1618 * for the given format.
1619 * The return value will be one of:
1620 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
1621 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
1622 * GL_UNSIGNED_INT = an ordinary unsigned integer
1623 * GL_INT = an ordinary signed integer
1624 * GL_FLOAT = an ordinary float
1627 _mesa_get_format_datatype(gl_format format
)
1629 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1630 return info
->DataType
;
1635 * Return the basic format for the given type. The result will be one of
1636 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
1637 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
1640 _mesa_get_format_base_format(gl_format format
)
1642 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1643 return info
->BaseFormat
;
1648 * Return the block size (in pixels) for the given format. Normally
1649 * the block size is 1x1. But compressed formats will have block sizes
1650 * of 4x4 or 8x4 pixels, etc.
1651 * \param bw returns block width in pixels
1652 * \param bh returns block height in pixels
1655 _mesa_get_format_block_size(gl_format format
, GLuint
*bw
, GLuint
*bh
)
1657 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1658 *bw
= info
->BlockWidth
;
1659 *bh
= info
->BlockHeight
;
1663 /** Is the given format a compressed format? */
1665 _mesa_is_format_compressed(gl_format format
)
1667 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1668 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
1673 * Determine if the given format represents a packed depth/stencil buffer.
1676 _mesa_is_format_packed_depth_stencil(gl_format format
)
1678 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1680 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
1685 * Is the given format a signed/unsigned integer color format?
1688 _mesa_is_format_integer_color(gl_format format
)
1690 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1691 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
1692 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
1693 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
1694 info
->BaseFormat
!= GL_STENCIL_INDEX
;
1699 * Return color encoding for given format.
1700 * \return GL_LINEAR or GL_SRGB
1703 _mesa_get_format_color_encoding(gl_format format
)
1705 /* XXX this info should be encoded in gl_format_info */
1707 case MESA_FORMAT_SRGB8
:
1708 case MESA_FORMAT_SRGBA8
:
1709 case MESA_FORMAT_SARGB8
:
1710 case MESA_FORMAT_SL8
:
1711 case MESA_FORMAT_SLA8
:
1712 case MESA_FORMAT_SRGB_DXT1
:
1713 case MESA_FORMAT_SRGBA_DXT1
:
1714 case MESA_FORMAT_SRGBA_DXT3
:
1715 case MESA_FORMAT_SRGBA_DXT5
:
1724 * For an sRGB format, return the corresponding linear color space format.
1725 * For non-sRGB formats, return the format as-is.
1728 _mesa_get_srgb_format_linear(gl_format format
)
1731 case MESA_FORMAT_SRGB8
:
1732 format
= MESA_FORMAT_RGB888
;
1734 case MESA_FORMAT_SRGBA8
:
1735 format
= MESA_FORMAT_RGBA8888
;
1737 case MESA_FORMAT_SARGB8
:
1738 format
= MESA_FORMAT_ARGB8888
;
1740 case MESA_FORMAT_SL8
:
1741 format
= MESA_FORMAT_L8
;
1743 case MESA_FORMAT_SLA8
:
1744 format
= MESA_FORMAT_AL88
;
1746 case MESA_FORMAT_SRGB_DXT1
:
1747 format
= MESA_FORMAT_RGB_DXT1
;
1749 case MESA_FORMAT_SRGBA_DXT1
:
1750 format
= MESA_FORMAT_RGBA_DXT1
;
1752 case MESA_FORMAT_SRGBA_DXT3
:
1753 format
= MESA_FORMAT_RGBA_DXT3
;
1755 case MESA_FORMAT_SRGBA_DXT5
:
1756 format
= MESA_FORMAT_RGBA_DXT5
;
1766 * If the given format is a compressed format, return a corresponding
1767 * uncompressed format.
1770 _mesa_get_uncompressed_format(gl_format format
)
1773 case MESA_FORMAT_RGB_FXT1
:
1774 return MESA_FORMAT_RGB888
;
1775 case MESA_FORMAT_RGBA_FXT1
:
1776 return MESA_FORMAT_RGBA8888
;
1777 case MESA_FORMAT_RGB_DXT1
:
1778 case MESA_FORMAT_SRGB_DXT1
:
1779 return MESA_FORMAT_RGB888
;
1780 case MESA_FORMAT_RGBA_DXT1
:
1781 case MESA_FORMAT_SRGBA_DXT1
:
1782 return MESA_FORMAT_RGBA8888
;
1783 case MESA_FORMAT_RGBA_DXT3
:
1784 case MESA_FORMAT_SRGBA_DXT3
:
1785 return MESA_FORMAT_RGBA8888
;
1786 case MESA_FORMAT_RGBA_DXT5
:
1787 case MESA_FORMAT_SRGBA_DXT5
:
1788 return MESA_FORMAT_RGBA8888
;
1789 case MESA_FORMAT_RED_RGTC1
:
1790 return MESA_FORMAT_R8
;
1791 case MESA_FORMAT_SIGNED_RED_RGTC1
:
1792 return MESA_FORMAT_SIGNED_R8
;
1793 case MESA_FORMAT_RG_RGTC2
:
1794 return MESA_FORMAT_GR88
;
1795 case MESA_FORMAT_SIGNED_RG_RGTC2
:
1796 return MESA_FORMAT_SIGNED_RG88_REV
;
1797 case MESA_FORMAT_L_LATC1
:
1798 return MESA_FORMAT_L8
;
1799 case MESA_FORMAT_SIGNED_L_LATC1
:
1800 return MESA_FORMAT_SIGNED_L8
;
1801 case MESA_FORMAT_LA_LATC2
:
1802 return MESA_FORMAT_AL88
;
1803 case MESA_FORMAT_SIGNED_LA_LATC2
:
1804 return MESA_FORMAT_SIGNED_AL88
;
1805 case MESA_FORMAT_ETC1_RGB8
:
1806 return MESA_FORMAT_RGB888
;
1809 assert(!_mesa_is_format_compressed(format
));
1817 _mesa_format_num_components(gl_format format
)
1819 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1820 return ((info
->RedBits
> 0) +
1821 (info
->GreenBits
> 0) +
1822 (info
->BlueBits
> 0) +
1823 (info
->AlphaBits
> 0) +
1824 (info
->LuminanceBits
> 0) +
1825 (info
->IntensityBits
> 0) +
1826 (info
->DepthBits
> 0) +
1827 (info
->StencilBits
> 0));
1832 * Return number of bytes needed to store an image of the given size
1833 * in the given format.
1836 _mesa_format_image_size(gl_format format
, GLsizei width
,
1837 GLsizei height
, GLsizei depth
)
1839 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1840 /* Strictly speaking, a conditional isn't needed here */
1841 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1842 /* compressed format (2D only for now) */
1843 const GLuint bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1844 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1845 const GLuint hblocks
= (height
+ bh
- 1) / bh
;
1846 const GLuint sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1851 /* non-compressed */
1852 const GLuint sz
= width
* height
* depth
* info
->BytesPerBlock
;
1859 * Same as _mesa_format_image_size() but returns a 64-bit value to
1860 * accomodate very large textures.
1863 _mesa_format_image_size64(gl_format format
, GLsizei width
,
1864 GLsizei height
, GLsizei depth
)
1866 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1867 /* Strictly speaking, a conditional isn't needed here */
1868 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1869 /* compressed format (2D only for now) */
1870 const uint64_t bw
= info
->BlockWidth
, bh
= info
->BlockHeight
;
1871 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
1872 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
1873 const uint64_t sz
= wblocks
* hblocks
* info
->BytesPerBlock
;
1878 /* non-compressed */
1879 const uint64_t sz
= ((uint64_t) width
*
1882 info
->BytesPerBlock
);
1890 _mesa_format_row_stride(gl_format format
, GLsizei width
)
1892 const struct gl_format_info
*info
= _mesa_get_format_info(format
);
1893 /* Strictly speaking, a conditional isn't needed here */
1894 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
1895 /* compressed format */
1896 const GLuint bw
= info
->BlockWidth
;
1897 const GLuint wblocks
= (width
+ bw
- 1) / bw
;
1898 const GLint stride
= wblocks
* info
->BytesPerBlock
;
1902 const GLint stride
= width
* info
->BytesPerBlock
;
1909 * Debug/test: check that all formats are handled in the
1910 * _mesa_format_to_type_and_comps() function. When new pixel formats
1911 * are added to Mesa, that function needs to be updated.
1912 * This is a no-op after the first call.
1915 check_format_to_type_and_comps(void)
1919 for (f
= MESA_FORMAT_NONE
+ 1; f
< MESA_FORMAT_COUNT
; f
++) {
1920 GLenum datatype
= 0;
1922 /* This function will emit a problem/warning if the format is
1925 _mesa_format_to_type_and_comps(f
, &datatype
, &comps
);
1931 * Do sanity checking of the format info table.
1934 _mesa_test_formats(void)
1938 assert(Elements(format_info
) == MESA_FORMAT_COUNT
);
1940 for (i
= 0; i
< MESA_FORMAT_COUNT
; i
++) {
1941 const struct gl_format_info
*info
= _mesa_get_format_info(i
);
1944 assert(info
->Name
== i
);
1946 if (info
->Name
== MESA_FORMAT_NONE
)
1949 if (info
->BlockWidth
== 1 && info
->BlockHeight
== 1) {
1950 if (info
->RedBits
> 0) {
1951 GLuint t
= info
->RedBits
+ info
->GreenBits
1952 + info
->BlueBits
+ info
->AlphaBits
;
1953 assert(t
/ 8 <= info
->BytesPerBlock
);
1958 assert(info
->DataType
== GL_UNSIGNED_NORMALIZED
||
1959 info
->DataType
== GL_SIGNED_NORMALIZED
||
1960 info
->DataType
== GL_UNSIGNED_INT
||
1961 info
->DataType
== GL_INT
||
1962 info
->DataType
== GL_FLOAT
||
1963 /* Z32_FLOAT_X24S8 has DataType of GL_NONE */
1964 info
->DataType
== GL_NONE
);
1966 if (info
->BaseFormat
== GL_RGB
) {
1967 assert(info
->RedBits
> 0);
1968 assert(info
->GreenBits
> 0);
1969 assert(info
->BlueBits
> 0);
1970 assert(info
->AlphaBits
== 0);
1971 assert(info
->LuminanceBits
== 0);
1972 assert(info
->IntensityBits
== 0);
1974 else if (info
->BaseFormat
== GL_RGBA
) {
1975 assert(info
->RedBits
> 0);
1976 assert(info
->GreenBits
> 0);
1977 assert(info
->BlueBits
> 0);
1978 assert(info
->AlphaBits
> 0);
1979 assert(info
->LuminanceBits
== 0);
1980 assert(info
->IntensityBits
== 0);
1982 else if (info
->BaseFormat
== GL_RG
) {
1983 assert(info
->RedBits
> 0);
1984 assert(info
->GreenBits
> 0);
1985 assert(info
->BlueBits
== 0);
1986 assert(info
->AlphaBits
== 0);
1987 assert(info
->LuminanceBits
== 0);
1988 assert(info
->IntensityBits
== 0);
1990 else if (info
->BaseFormat
== GL_RED
) {
1991 assert(info
->RedBits
> 0);
1992 assert(info
->GreenBits
== 0);
1993 assert(info
->BlueBits
== 0);
1994 assert(info
->AlphaBits
== 0);
1995 assert(info
->LuminanceBits
== 0);
1996 assert(info
->IntensityBits
== 0);
1998 else if (info
->BaseFormat
== GL_LUMINANCE
) {
1999 assert(info
->RedBits
== 0);
2000 assert(info
->GreenBits
== 0);
2001 assert(info
->BlueBits
== 0);
2002 assert(info
->AlphaBits
== 0);
2003 assert(info
->LuminanceBits
> 0);
2004 assert(info
->IntensityBits
== 0);
2006 else if (info
->BaseFormat
== GL_INTENSITY
) {
2007 assert(info
->RedBits
== 0);
2008 assert(info
->GreenBits
== 0);
2009 assert(info
->BlueBits
== 0);
2010 assert(info
->AlphaBits
== 0);
2011 assert(info
->LuminanceBits
== 0);
2012 assert(info
->IntensityBits
> 0);
2016 check_format_to_type_and_comps();
2022 * Return datatype and number of components per texel for the given gl_format.
2023 * Only used for mipmap generation code.
2026 _mesa_format_to_type_and_comps(gl_format format
,
2027 GLenum
*datatype
, GLuint
*comps
)
2030 case MESA_FORMAT_RGBA8888
:
2031 case MESA_FORMAT_RGBA8888_REV
:
2032 case MESA_FORMAT_ARGB8888
:
2033 case MESA_FORMAT_ARGB8888_REV
:
2034 case MESA_FORMAT_RGBX8888
:
2035 case MESA_FORMAT_RGBX8888_REV
:
2036 case MESA_FORMAT_XRGB8888
:
2037 case MESA_FORMAT_XRGB8888_REV
:
2038 *datatype
= GL_UNSIGNED_BYTE
;
2041 case MESA_FORMAT_RGB888
:
2042 case MESA_FORMAT_BGR888
:
2043 *datatype
= GL_UNSIGNED_BYTE
;
2046 case MESA_FORMAT_RGB565
:
2047 case MESA_FORMAT_RGB565_REV
:
2048 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
2052 case MESA_FORMAT_ARGB4444
:
2053 case MESA_FORMAT_ARGB4444_REV
:
2054 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
2058 case MESA_FORMAT_ARGB1555
:
2059 case MESA_FORMAT_ARGB1555_REV
:
2060 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2064 case MESA_FORMAT_ARGB2101010
:
2065 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2069 case MESA_FORMAT_RGBA5551
:
2070 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
2074 case MESA_FORMAT_AL44
:
2075 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
2079 case MESA_FORMAT_AL88
:
2080 case MESA_FORMAT_AL88_REV
:
2081 case MESA_FORMAT_GR88
:
2082 case MESA_FORMAT_RG88
:
2083 *datatype
= GL_UNSIGNED_BYTE
;
2087 case MESA_FORMAT_AL1616
:
2088 case MESA_FORMAT_AL1616_REV
:
2089 case MESA_FORMAT_RG1616
:
2090 case MESA_FORMAT_RG1616_REV
:
2091 *datatype
= GL_UNSIGNED_SHORT
;
2095 case MESA_FORMAT_R16
:
2096 case MESA_FORMAT_A16
:
2097 case MESA_FORMAT_L16
:
2098 case MESA_FORMAT_I16
:
2099 *datatype
= GL_UNSIGNED_SHORT
;
2103 case MESA_FORMAT_RGB332
:
2104 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
2108 case MESA_FORMAT_A8
:
2109 case MESA_FORMAT_L8
:
2110 case MESA_FORMAT_I8
:
2111 case MESA_FORMAT_R8
:
2112 case MESA_FORMAT_S8
:
2113 *datatype
= GL_UNSIGNED_BYTE
;
2117 case MESA_FORMAT_YCBCR
:
2118 case MESA_FORMAT_YCBCR_REV
:
2119 *datatype
= GL_UNSIGNED_SHORT
;
2123 case MESA_FORMAT_Z24_S8
:
2124 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
2128 case MESA_FORMAT_S8_Z24
:
2129 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
2133 case MESA_FORMAT_Z16
:
2134 *datatype
= GL_UNSIGNED_SHORT
;
2138 case MESA_FORMAT_X8_Z24
:
2139 *datatype
= GL_UNSIGNED_INT
;
2143 case MESA_FORMAT_Z24_X8
:
2144 *datatype
= GL_UNSIGNED_INT
;
2148 case MESA_FORMAT_Z32
:
2149 *datatype
= GL_UNSIGNED_INT
;
2153 case MESA_FORMAT_Z32_FLOAT
:
2154 *datatype
= GL_FLOAT
;
2158 case MESA_FORMAT_Z32_FLOAT_X24S8
:
2159 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
2163 case MESA_FORMAT_DUDV8
:
2164 *datatype
= GL_BYTE
;
2168 case MESA_FORMAT_SIGNED_R8
:
2169 case MESA_FORMAT_SIGNED_A8
:
2170 case MESA_FORMAT_SIGNED_L8
:
2171 case MESA_FORMAT_SIGNED_I8
:
2172 *datatype
= GL_BYTE
;
2175 case MESA_FORMAT_SIGNED_RG88_REV
:
2176 case MESA_FORMAT_SIGNED_AL88
:
2177 *datatype
= GL_BYTE
;
2180 case MESA_FORMAT_SIGNED_RGBA8888
:
2181 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2182 case MESA_FORMAT_SIGNED_RGBX8888
:
2183 *datatype
= GL_BYTE
;
2187 case MESA_FORMAT_RGBA_16
:
2188 *datatype
= GL_UNSIGNED_SHORT
;
2192 case MESA_FORMAT_SIGNED_R16
:
2193 case MESA_FORMAT_SIGNED_A16
:
2194 case MESA_FORMAT_SIGNED_L16
:
2195 case MESA_FORMAT_SIGNED_I16
:
2196 *datatype
= GL_SHORT
;
2199 case MESA_FORMAT_SIGNED_GR1616
:
2200 case MESA_FORMAT_SIGNED_AL1616
:
2201 *datatype
= GL_SHORT
;
2204 case MESA_FORMAT_SIGNED_RGB_16
:
2205 *datatype
= GL_SHORT
;
2208 case MESA_FORMAT_SIGNED_RGBA_16
:
2209 *datatype
= GL_SHORT
;
2213 #if FEATURE_EXT_texture_sRGB
2214 case MESA_FORMAT_SRGB8
:
2215 *datatype
= GL_UNSIGNED_BYTE
;
2218 case MESA_FORMAT_SRGBA8
:
2219 case MESA_FORMAT_SARGB8
:
2220 *datatype
= GL_UNSIGNED_BYTE
;
2223 case MESA_FORMAT_SL8
:
2224 *datatype
= GL_UNSIGNED_BYTE
;
2227 case MESA_FORMAT_SLA8
:
2228 *datatype
= GL_UNSIGNED_BYTE
;
2233 #if FEATURE_texture_fxt1
2234 case MESA_FORMAT_RGB_FXT1
:
2235 case MESA_FORMAT_RGBA_FXT1
:
2237 #if FEATURE_texture_s3tc
2238 case MESA_FORMAT_RGB_DXT1
:
2239 case MESA_FORMAT_RGBA_DXT1
:
2240 case MESA_FORMAT_RGBA_DXT3
:
2241 case MESA_FORMAT_RGBA_DXT5
:
2242 #if FEATURE_EXT_texture_sRGB
2243 case MESA_FORMAT_SRGB_DXT1
:
2244 case MESA_FORMAT_SRGBA_DXT1
:
2245 case MESA_FORMAT_SRGBA_DXT3
:
2246 case MESA_FORMAT_SRGBA_DXT5
:
2249 case MESA_FORMAT_RED_RGTC1
:
2250 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2251 case MESA_FORMAT_RG_RGTC2
:
2252 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2253 case MESA_FORMAT_L_LATC1
:
2254 case MESA_FORMAT_SIGNED_L_LATC1
:
2255 case MESA_FORMAT_LA_LATC2
:
2256 case MESA_FORMAT_SIGNED_LA_LATC2
:
2257 case MESA_FORMAT_ETC1_RGB8
:
2258 /* XXX generate error instead? */
2259 *datatype
= GL_UNSIGNED_BYTE
;
2263 case MESA_FORMAT_RGBA_FLOAT32
:
2264 *datatype
= GL_FLOAT
;
2267 case MESA_FORMAT_RGBA_FLOAT16
:
2268 *datatype
= GL_HALF_FLOAT_ARB
;
2271 case MESA_FORMAT_RGB_FLOAT32
:
2272 *datatype
= GL_FLOAT
;
2275 case MESA_FORMAT_RGB_FLOAT16
:
2276 *datatype
= GL_HALF_FLOAT_ARB
;
2279 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2280 case MESA_FORMAT_RG_FLOAT32
:
2281 *datatype
= GL_FLOAT
;
2284 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2285 case MESA_FORMAT_RG_FLOAT16
:
2286 *datatype
= GL_HALF_FLOAT_ARB
;
2289 case MESA_FORMAT_ALPHA_FLOAT32
:
2290 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2291 case MESA_FORMAT_INTENSITY_FLOAT32
:
2292 case MESA_FORMAT_R_FLOAT32
:
2293 *datatype
= GL_FLOAT
;
2296 case MESA_FORMAT_ALPHA_FLOAT16
:
2297 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2298 case MESA_FORMAT_INTENSITY_FLOAT16
:
2299 case MESA_FORMAT_R_FLOAT16
:
2300 *datatype
= GL_HALF_FLOAT_ARB
;
2304 case MESA_FORMAT_ALPHA_UINT8
:
2305 case MESA_FORMAT_LUMINANCE_UINT8
:
2306 case MESA_FORMAT_INTENSITY_UINT8
:
2307 *datatype
= GL_UNSIGNED_BYTE
;
2310 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2311 *datatype
= GL_UNSIGNED_BYTE
;
2315 case MESA_FORMAT_ALPHA_UINT16
:
2316 case MESA_FORMAT_LUMINANCE_UINT16
:
2317 case MESA_FORMAT_INTENSITY_UINT16
:
2318 *datatype
= GL_UNSIGNED_SHORT
;
2321 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2322 *datatype
= GL_UNSIGNED_SHORT
;
2325 case MESA_FORMAT_ALPHA_UINT32
:
2326 case MESA_FORMAT_LUMINANCE_UINT32
:
2327 case MESA_FORMAT_INTENSITY_UINT32
:
2328 *datatype
= GL_UNSIGNED_INT
;
2331 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2332 *datatype
= GL_UNSIGNED_INT
;
2335 case MESA_FORMAT_ALPHA_INT8
:
2336 case MESA_FORMAT_LUMINANCE_INT8
:
2337 case MESA_FORMAT_INTENSITY_INT8
:
2338 *datatype
= GL_BYTE
;
2341 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2342 *datatype
= GL_BYTE
;
2346 case MESA_FORMAT_ALPHA_INT16
:
2347 case MESA_FORMAT_LUMINANCE_INT16
:
2348 case MESA_FORMAT_INTENSITY_INT16
:
2349 *datatype
= GL_SHORT
;
2352 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2353 *datatype
= GL_SHORT
;
2357 case MESA_FORMAT_ALPHA_INT32
:
2358 case MESA_FORMAT_LUMINANCE_INT32
:
2359 case MESA_FORMAT_INTENSITY_INT32
:
2363 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2368 case MESA_FORMAT_R_INT8
:
2369 *datatype
= GL_BYTE
;
2372 case MESA_FORMAT_RG_INT8
:
2373 *datatype
= GL_BYTE
;
2376 case MESA_FORMAT_RGB_INT8
:
2377 *datatype
= GL_BYTE
;
2380 case MESA_FORMAT_RGBA_INT8
:
2381 *datatype
= GL_BYTE
;
2384 case MESA_FORMAT_R_INT16
:
2385 *datatype
= GL_SHORT
;
2388 case MESA_FORMAT_RG_INT16
:
2389 *datatype
= GL_SHORT
;
2392 case MESA_FORMAT_RGB_INT16
:
2393 *datatype
= GL_SHORT
;
2396 case MESA_FORMAT_RGBA_INT16
:
2397 *datatype
= GL_SHORT
;
2400 case MESA_FORMAT_R_INT32
:
2404 case MESA_FORMAT_RG_INT32
:
2408 case MESA_FORMAT_RGB_INT32
:
2412 case MESA_FORMAT_RGBA_INT32
:
2418 * \name Non-normalized unsigned integer formats.
2420 case MESA_FORMAT_R_UINT8
:
2421 *datatype
= GL_UNSIGNED_BYTE
;
2424 case MESA_FORMAT_RG_UINT8
:
2425 *datatype
= GL_UNSIGNED_BYTE
;
2428 case MESA_FORMAT_RGB_UINT8
:
2429 *datatype
= GL_UNSIGNED_BYTE
;
2432 case MESA_FORMAT_RGBA_UINT8
:
2433 *datatype
= GL_UNSIGNED_BYTE
;
2436 case MESA_FORMAT_R_UINT16
:
2437 *datatype
= GL_UNSIGNED_SHORT
;
2440 case MESA_FORMAT_RG_UINT16
:
2441 *datatype
= GL_UNSIGNED_SHORT
;
2444 case MESA_FORMAT_RGB_UINT16
:
2445 *datatype
= GL_UNSIGNED_SHORT
;
2448 case MESA_FORMAT_RGBA_UINT16
:
2449 *datatype
= GL_UNSIGNED_SHORT
;
2452 case MESA_FORMAT_R_UINT32
:
2453 *datatype
= GL_UNSIGNED_INT
;
2456 case MESA_FORMAT_RG_UINT32
:
2457 *datatype
= GL_UNSIGNED_INT
;
2460 case MESA_FORMAT_RGB_UINT32
:
2461 *datatype
= GL_UNSIGNED_INT
;
2464 case MESA_FORMAT_RGBA_UINT32
:
2465 *datatype
= GL_UNSIGNED_INT
;
2469 case MESA_FORMAT_RGB9_E5_FLOAT
:
2470 *datatype
= GL_UNSIGNED_INT_5_9_9_9_REV
;
2474 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2475 *datatype
= GL_UNSIGNED_INT_10F_11F_11F_REV
;
2479 case MESA_FORMAT_ARGB2101010_UINT
:
2480 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
2484 case MESA_FORMAT_COUNT
:
2488 case MESA_FORMAT_NONE
:
2489 /* For debug builds, warn if any formats are not handled */
2493 _mesa_problem(NULL
, "bad format %s in _mesa_format_to_type_and_comps",
2494 _mesa_get_format_name(format
));
2501 * Check if a gl_format exactly matches a GL formaat/type combination
2502 * such that we can use memcpy() from one to the other.
2504 * Note: this matching assumes that GL_PACK/UNPACK_SWAP_BYTES is unset.
2506 * \return GL_TRUE if the formats match, GL_FALSE otherwise.
2509 _mesa_format_matches_format_and_type(gl_format gl_format
,
2510 GLenum format
, GLenum type
)
2512 const GLboolean littleEndian
= _mesa_little_endian();
2514 /* Note: When reading a GL format/type combination, the format lists channel
2515 * assignments from most significant channel in the type to least
2516 * significant. A type with _REV indicates that the assignments are
2517 * swapped, so they are listed from least significant to most significant.
2519 * For sanity, please keep this switch statement ordered the same as the
2520 * enums in formats.h.
2523 switch (gl_format
) {
2525 case MESA_FORMAT_NONE
:
2526 case MESA_FORMAT_COUNT
:
2529 case MESA_FORMAT_RGBA8888
:
2530 return ((format
== GL_RGBA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2531 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))) ||
2532 (format
== GL_ABGR_EXT
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2533 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2535 case MESA_FORMAT_RGBA8888_REV
:
2536 return ((format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
));
2538 case MESA_FORMAT_ARGB8888
:
2539 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8_REV
||
2540 (type
== GL_UNSIGNED_BYTE
&& littleEndian
))));
2542 case MESA_FORMAT_ARGB8888_REV
:
2543 return ((format
== GL_BGRA
&& (type
== GL_UNSIGNED_INT_8_8_8_8
||
2544 (type
== GL_UNSIGNED_BYTE
&& !littleEndian
))));
2546 case MESA_FORMAT_RGBX8888
:
2547 case MESA_FORMAT_RGBX8888_REV
:
2550 case MESA_FORMAT_XRGB8888
:
2551 case MESA_FORMAT_XRGB8888_REV
:
2554 case MESA_FORMAT_RGB888
:
2555 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2557 case MESA_FORMAT_BGR888
:
2560 case MESA_FORMAT_RGB565
:
2561 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
;
2562 case MESA_FORMAT_RGB565_REV
:
2563 /* Some of the 16-bit MESA_FORMATs that would seem to correspond to
2564 * GL_UNSIGNED_SHORT_* are byte-swapped instead of channel-reversed,
2565 * according to formats.h, so they can't be matched.
2569 case MESA_FORMAT_ARGB4444
:
2570 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
;
2571 case MESA_FORMAT_ARGB4444_REV
:
2574 case MESA_FORMAT_RGBA5551
:
2575 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
;
2577 case MESA_FORMAT_ARGB1555
:
2578 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
2579 case MESA_FORMAT_ARGB1555_REV
:
2582 case MESA_FORMAT_AL44
:
2584 case MESA_FORMAT_AL88
:
2585 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2586 case MESA_FORMAT_AL88_REV
:
2589 case MESA_FORMAT_AL1616
:
2590 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2591 case MESA_FORMAT_AL1616_REV
:
2594 case MESA_FORMAT_RGB332
:
2595 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
2597 case MESA_FORMAT_A8
:
2598 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
2599 case MESA_FORMAT_A16
:
2600 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2601 case MESA_FORMAT_L8
:
2602 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
2603 case MESA_FORMAT_L16
:
2604 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2605 case MESA_FORMAT_I8
:
2606 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_BYTE
;
2607 case MESA_FORMAT_I16
:
2608 return format
== GL_INTENSITY
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2610 case MESA_FORMAT_YCBCR
:
2611 case MESA_FORMAT_YCBCR_REV
:
2614 case MESA_FORMAT_R8
:
2615 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
2616 case MESA_FORMAT_GR88
:
2617 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
2618 case MESA_FORMAT_RG88
:
2621 case MESA_FORMAT_R16
:
2622 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2623 case MESA_FORMAT_RG1616
:
2624 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
;
2625 case MESA_FORMAT_RG1616_REV
:
2628 case MESA_FORMAT_ARGB2101010
:
2629 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
;
2631 case MESA_FORMAT_Z24_S8
:
2632 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
;
2633 case MESA_FORMAT_Z24_X8
:
2634 case MESA_FORMAT_S8_Z24
:
2637 case MESA_FORMAT_Z16
:
2638 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
;
2640 case MESA_FORMAT_X8_Z24
:
2643 case MESA_FORMAT_Z32
:
2644 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
;
2646 case MESA_FORMAT_S8
:
2649 case MESA_FORMAT_SRGB8
:
2650 case MESA_FORMAT_SRGBA8
:
2651 case MESA_FORMAT_SARGB8
:
2652 case MESA_FORMAT_SL8
:
2653 case MESA_FORMAT_SLA8
:
2654 case MESA_FORMAT_SRGB_DXT1
:
2655 case MESA_FORMAT_SRGBA_DXT1
:
2656 case MESA_FORMAT_SRGBA_DXT3
:
2657 case MESA_FORMAT_SRGBA_DXT5
:
2660 case MESA_FORMAT_RGB_FXT1
:
2661 case MESA_FORMAT_RGBA_FXT1
:
2662 case MESA_FORMAT_RGB_DXT1
:
2663 case MESA_FORMAT_RGBA_DXT1
:
2664 case MESA_FORMAT_RGBA_DXT3
:
2665 case MESA_FORMAT_RGBA_DXT5
:
2668 case MESA_FORMAT_RGBA_FLOAT32
:
2669 return format
== GL_RGBA
&& type
== GL_FLOAT
;
2670 case MESA_FORMAT_RGBA_FLOAT16
:
2671 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
;
2673 case MESA_FORMAT_RGB_FLOAT32
:
2674 return format
== GL_RGB
&& type
== GL_FLOAT
;
2675 case MESA_FORMAT_RGB_FLOAT16
:
2676 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
;
2678 case MESA_FORMAT_ALPHA_FLOAT32
:
2679 return format
== GL_ALPHA
&& type
== GL_FLOAT
;
2680 case MESA_FORMAT_ALPHA_FLOAT16
:
2681 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
;
2683 case MESA_FORMAT_LUMINANCE_FLOAT32
:
2684 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
;
2685 case MESA_FORMAT_LUMINANCE_FLOAT16
:
2686 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
;
2688 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
:
2689 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
;
2690 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
:
2691 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
;
2693 case MESA_FORMAT_INTENSITY_FLOAT32
:
2694 return format
== GL_INTENSITY
&& type
== GL_FLOAT
;
2695 case MESA_FORMAT_INTENSITY_FLOAT16
:
2696 return format
== GL_INTENSITY
&& type
== GL_HALF_FLOAT
;
2698 case MESA_FORMAT_R_FLOAT32
:
2699 return format
== GL_RED
&& type
== GL_FLOAT
;
2700 case MESA_FORMAT_R_FLOAT16
:
2701 return format
== GL_RED
&& type
== GL_HALF_FLOAT
;
2703 case MESA_FORMAT_RG_FLOAT32
:
2704 return format
== GL_RG
&& type
== GL_FLOAT
;
2705 case MESA_FORMAT_RG_FLOAT16
:
2706 return format
== GL_RG
&& type
== GL_HALF_FLOAT
;
2708 /* FINISHME: What do we want to do for GL_EXT_texture_integer? */
2709 case MESA_FORMAT_ALPHA_UINT8
:
2710 case MESA_FORMAT_ALPHA_UINT16
:
2711 case MESA_FORMAT_ALPHA_UINT32
:
2712 case MESA_FORMAT_ALPHA_INT8
:
2713 case MESA_FORMAT_ALPHA_INT16
:
2714 case MESA_FORMAT_ALPHA_INT32
:
2717 case MESA_FORMAT_INTENSITY_UINT8
:
2718 case MESA_FORMAT_INTENSITY_UINT16
:
2719 case MESA_FORMAT_INTENSITY_UINT32
:
2720 case MESA_FORMAT_INTENSITY_INT8
:
2721 case MESA_FORMAT_INTENSITY_INT16
:
2722 case MESA_FORMAT_INTENSITY_INT32
:
2725 case MESA_FORMAT_LUMINANCE_UINT8
:
2726 case MESA_FORMAT_LUMINANCE_UINT16
:
2727 case MESA_FORMAT_LUMINANCE_UINT32
:
2728 case MESA_FORMAT_LUMINANCE_INT8
:
2729 case MESA_FORMAT_LUMINANCE_INT16
:
2730 case MESA_FORMAT_LUMINANCE_INT32
:
2733 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8
:
2734 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16
:
2735 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32
:
2736 case MESA_FORMAT_LUMINANCE_ALPHA_INT8
:
2737 case MESA_FORMAT_LUMINANCE_ALPHA_INT16
:
2738 case MESA_FORMAT_LUMINANCE_ALPHA_INT32
:
2741 case MESA_FORMAT_R_INT8
:
2742 case MESA_FORMAT_RG_INT8
:
2743 case MESA_FORMAT_RGB_INT8
:
2744 case MESA_FORMAT_RGBA_INT8
:
2745 case MESA_FORMAT_R_INT16
:
2746 case MESA_FORMAT_RG_INT16
:
2747 case MESA_FORMAT_RGB_INT16
:
2748 case MESA_FORMAT_RGBA_INT16
:
2749 case MESA_FORMAT_R_INT32
:
2750 case MESA_FORMAT_RG_INT32
:
2751 case MESA_FORMAT_RGB_INT32
:
2752 case MESA_FORMAT_RGBA_INT32
:
2755 case MESA_FORMAT_R_UINT8
:
2756 case MESA_FORMAT_RG_UINT8
:
2757 case MESA_FORMAT_RGB_UINT8
:
2758 case MESA_FORMAT_RGBA_UINT8
:
2759 case MESA_FORMAT_R_UINT16
:
2760 case MESA_FORMAT_RG_UINT16
:
2761 case MESA_FORMAT_RGB_UINT16
:
2762 case MESA_FORMAT_RGBA_UINT16
:
2763 case MESA_FORMAT_R_UINT32
:
2764 case MESA_FORMAT_RG_UINT32
:
2765 case MESA_FORMAT_RGB_UINT32
:
2766 case MESA_FORMAT_RGBA_UINT32
:
2769 case MESA_FORMAT_DUDV8
:
2770 case MESA_FORMAT_SIGNED_R8
:
2771 case MESA_FORMAT_SIGNED_RG88_REV
:
2772 case MESA_FORMAT_SIGNED_RGBX8888
:
2773 case MESA_FORMAT_SIGNED_RGBA8888
:
2774 case MESA_FORMAT_SIGNED_RGBA8888_REV
:
2775 case MESA_FORMAT_SIGNED_R16
:
2776 case MESA_FORMAT_SIGNED_GR1616
:
2777 case MESA_FORMAT_SIGNED_RGB_16
:
2778 case MESA_FORMAT_SIGNED_RGBA_16
:
2779 case MESA_FORMAT_RGBA_16
:
2780 /* FINISHME: SNORM */
2783 case MESA_FORMAT_RED_RGTC1
:
2784 case MESA_FORMAT_SIGNED_RED_RGTC1
:
2785 case MESA_FORMAT_RG_RGTC2
:
2786 case MESA_FORMAT_SIGNED_RG_RGTC2
:
2789 case MESA_FORMAT_L_LATC1
:
2790 case MESA_FORMAT_SIGNED_L_LATC1
:
2791 case MESA_FORMAT_LA_LATC2
:
2792 case MESA_FORMAT_SIGNED_LA_LATC2
:
2795 case MESA_FORMAT_ETC1_RGB8
:
2798 case MESA_FORMAT_SIGNED_A8
:
2799 case MESA_FORMAT_SIGNED_L8
:
2800 case MESA_FORMAT_SIGNED_AL88
:
2801 case MESA_FORMAT_SIGNED_I8
:
2802 case MESA_FORMAT_SIGNED_A16
:
2803 case MESA_FORMAT_SIGNED_L16
:
2804 case MESA_FORMAT_SIGNED_AL1616
:
2805 case MESA_FORMAT_SIGNED_I16
:
2806 /* FINISHME: SNORM */
2809 case MESA_FORMAT_ARGB2101010_UINT
:
2812 case MESA_FORMAT_RGB9_E5_FLOAT
:
2813 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_5_9_9_9_REV
;
2814 case MESA_FORMAT_R11_G11_B10_FLOAT
:
2815 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_10F_11F_11F_REV
;
2817 case MESA_FORMAT_Z32_FLOAT
:
2818 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
;
2820 case MESA_FORMAT_Z32_FLOAT_X24S8
: