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[mesa.git] / src / mesa / state_tracker / st_format.c
1 /**************************************************************************
2 *
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright (c) 2008-2010 VMware, Inc.
5 * All Rights Reserved.
6 *
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
14 *
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
17 * of the Software.
18 *
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 *
27 **************************************************************************/
28
29
30 /**
31 * Mesa / Gallium format conversion and format selection code.
32 * \author Brian Paul
33 */
34
35 #include "main/imports.h"
36 #include "main/context.h"
37 #include "main/glformats.h"
38 #include "main/texstore.h"
39 #include "main/image.h"
40 #include "main/macros.h"
41 #include "main/mfeatures.h"
42
43 #include "pipe/p_context.h"
44 #include "pipe/p_defines.h"
45 #include "pipe/p_screen.h"
46 #include "util/u_format.h"
47 #include "st_context.h"
48 #include "st_format.h"
49
50
51 /**
52 * Translate Mesa format to Gallium format.
53 */
54 enum pipe_format
55 st_mesa_format_to_pipe_format(gl_format mesaFormat)
56 {
57 switch (mesaFormat) {
58 case MESA_FORMAT_RGBA8888:
59 return PIPE_FORMAT_A8B8G8R8_UNORM;
60 case MESA_FORMAT_RGBA8888_REV:
61 return PIPE_FORMAT_R8G8B8A8_UNORM;
62 case MESA_FORMAT_ARGB8888:
63 return PIPE_FORMAT_B8G8R8A8_UNORM;
64 case MESA_FORMAT_ARGB8888_REV:
65 return PIPE_FORMAT_A8R8G8B8_UNORM;
66 case MESA_FORMAT_RGBX8888:
67 return PIPE_FORMAT_X8B8G8R8_UNORM;
68 case MESA_FORMAT_RGBX8888_REV:
69 return PIPE_FORMAT_R8G8B8X8_UNORM;
70 case MESA_FORMAT_XRGB8888:
71 return PIPE_FORMAT_B8G8R8X8_UNORM;
72 case MESA_FORMAT_XRGB8888_REV:
73 return PIPE_FORMAT_X8R8G8B8_UNORM;
74 case MESA_FORMAT_ARGB1555:
75 return PIPE_FORMAT_B5G5R5A1_UNORM;
76 case MESA_FORMAT_ARGB4444:
77 return PIPE_FORMAT_B4G4R4A4_UNORM;
78 case MESA_FORMAT_RGB565:
79 return PIPE_FORMAT_B5G6R5_UNORM;
80 case MESA_FORMAT_RGB332:
81 return PIPE_FORMAT_B2G3R3_UNORM;
82 case MESA_FORMAT_ARGB2101010:
83 return PIPE_FORMAT_B10G10R10A2_UNORM;
84 case MESA_FORMAT_AL44:
85 return PIPE_FORMAT_L4A4_UNORM;
86 case MESA_FORMAT_AL88:
87 return PIPE_FORMAT_L8A8_UNORM;
88 case MESA_FORMAT_AL1616:
89 return PIPE_FORMAT_L16A16_UNORM;
90 case MESA_FORMAT_A8:
91 return PIPE_FORMAT_A8_UNORM;
92 case MESA_FORMAT_A16:
93 return PIPE_FORMAT_A16_UNORM;
94 case MESA_FORMAT_L8:
95 return PIPE_FORMAT_L8_UNORM;
96 case MESA_FORMAT_L16:
97 return PIPE_FORMAT_L16_UNORM;
98 case MESA_FORMAT_I8:
99 return PIPE_FORMAT_I8_UNORM;
100 case MESA_FORMAT_I16:
101 return PIPE_FORMAT_I16_UNORM;
102 case MESA_FORMAT_Z16:
103 return PIPE_FORMAT_Z16_UNORM;
104 case MESA_FORMAT_Z32:
105 return PIPE_FORMAT_Z32_UNORM;
106 case MESA_FORMAT_Z24_S8:
107 return PIPE_FORMAT_S8_UINT_Z24_UNORM;
108 case MESA_FORMAT_S8_Z24:
109 return PIPE_FORMAT_Z24_UNORM_S8_UINT;
110 case MESA_FORMAT_Z24_X8:
111 return PIPE_FORMAT_X8Z24_UNORM;
112 case MESA_FORMAT_X8_Z24:
113 return PIPE_FORMAT_Z24X8_UNORM;
114 case MESA_FORMAT_S8:
115 return PIPE_FORMAT_S8_UINT;
116 case MESA_FORMAT_Z32_FLOAT:
117 return PIPE_FORMAT_Z32_FLOAT;
118 case MESA_FORMAT_Z32_FLOAT_X24S8:
119 return PIPE_FORMAT_Z32_FLOAT_S8X24_UINT;
120 case MESA_FORMAT_YCBCR:
121 return PIPE_FORMAT_UYVY;
122 case MESA_FORMAT_RGB_DXT1:
123 return PIPE_FORMAT_DXT1_RGB;
124 case MESA_FORMAT_RGBA_DXT1:
125 return PIPE_FORMAT_DXT1_RGBA;
126 case MESA_FORMAT_RGBA_DXT3:
127 return PIPE_FORMAT_DXT3_RGBA;
128 case MESA_FORMAT_RGBA_DXT5:
129 return PIPE_FORMAT_DXT5_RGBA;
130 #if FEATURE_EXT_texture_sRGB
131 case MESA_FORMAT_SRGB_DXT1:
132 return PIPE_FORMAT_DXT1_SRGB;
133 case MESA_FORMAT_SRGBA_DXT1:
134 return PIPE_FORMAT_DXT1_SRGBA;
135 case MESA_FORMAT_SRGBA_DXT3:
136 return PIPE_FORMAT_DXT3_SRGBA;
137 case MESA_FORMAT_SRGBA_DXT5:
138 return PIPE_FORMAT_DXT5_SRGBA;
139 case MESA_FORMAT_SLA8:
140 return PIPE_FORMAT_L8A8_SRGB;
141 case MESA_FORMAT_SL8:
142 return PIPE_FORMAT_L8_SRGB;
143 case MESA_FORMAT_SRGB8:
144 return PIPE_FORMAT_R8G8B8_SRGB;
145 case MESA_FORMAT_SRGBA8:
146 return PIPE_FORMAT_A8B8G8R8_SRGB;
147 case MESA_FORMAT_SARGB8:
148 return PIPE_FORMAT_B8G8R8A8_SRGB;
149 #endif
150 case MESA_FORMAT_RGBA_FLOAT32:
151 return PIPE_FORMAT_R32G32B32A32_FLOAT;
152 case MESA_FORMAT_RGBA_FLOAT16:
153 return PIPE_FORMAT_R16G16B16A16_FLOAT;
154 case MESA_FORMAT_RGB_FLOAT32:
155 return PIPE_FORMAT_R32G32B32_FLOAT;
156 case MESA_FORMAT_RGB_FLOAT16:
157 return PIPE_FORMAT_R16G16B16_FLOAT;
158 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
159 return PIPE_FORMAT_L32A32_FLOAT;
160 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
161 return PIPE_FORMAT_L16A16_FLOAT;
162 case MESA_FORMAT_LUMINANCE_FLOAT32:
163 return PIPE_FORMAT_L32_FLOAT;
164 case MESA_FORMAT_LUMINANCE_FLOAT16:
165 return PIPE_FORMAT_L16_FLOAT;
166 case MESA_FORMAT_ALPHA_FLOAT32:
167 return PIPE_FORMAT_A32_FLOAT;
168 case MESA_FORMAT_ALPHA_FLOAT16:
169 return PIPE_FORMAT_A16_FLOAT;
170 case MESA_FORMAT_INTENSITY_FLOAT32:
171 return PIPE_FORMAT_I32_FLOAT;
172 case MESA_FORMAT_INTENSITY_FLOAT16:
173 return PIPE_FORMAT_I16_FLOAT;
174 case MESA_FORMAT_R_FLOAT32:
175 return PIPE_FORMAT_R32_FLOAT;
176 case MESA_FORMAT_R_FLOAT16:
177 return PIPE_FORMAT_R16_FLOAT;
178 case MESA_FORMAT_RG_FLOAT32:
179 return PIPE_FORMAT_R32G32_FLOAT;
180 case MESA_FORMAT_RG_FLOAT16:
181 return PIPE_FORMAT_R16G16_FLOAT;
182
183 case MESA_FORMAT_R8:
184 return PIPE_FORMAT_R8_UNORM;
185 case MESA_FORMAT_R16:
186 return PIPE_FORMAT_R16_UNORM;
187 case MESA_FORMAT_GR88:
188 return PIPE_FORMAT_R8G8_UNORM;
189 case MESA_FORMAT_RG1616:
190 return PIPE_FORMAT_R16G16_UNORM;
191 case MESA_FORMAT_RGBA_16:
192 return PIPE_FORMAT_R16G16B16A16_UNORM;
193
194 /* signed int formats */
195 case MESA_FORMAT_ALPHA_UINT8:
196 return PIPE_FORMAT_A8_UINT;
197 case MESA_FORMAT_ALPHA_UINT16:
198 return PIPE_FORMAT_A16_UINT;
199 case MESA_FORMAT_ALPHA_UINT32:
200 return PIPE_FORMAT_A32_UINT;
201
202 case MESA_FORMAT_ALPHA_INT8:
203 return PIPE_FORMAT_A8_SINT;
204 case MESA_FORMAT_ALPHA_INT16:
205 return PIPE_FORMAT_A16_SINT;
206 case MESA_FORMAT_ALPHA_INT32:
207 return PIPE_FORMAT_A32_SINT;
208
209 case MESA_FORMAT_INTENSITY_UINT8:
210 return PIPE_FORMAT_I8_UINT;
211 case MESA_FORMAT_INTENSITY_UINT16:
212 return PIPE_FORMAT_I16_UINT;
213 case MESA_FORMAT_INTENSITY_UINT32:
214 return PIPE_FORMAT_I32_UINT;
215
216 case MESA_FORMAT_INTENSITY_INT8:
217 return PIPE_FORMAT_I8_SINT;
218 case MESA_FORMAT_INTENSITY_INT16:
219 return PIPE_FORMAT_I16_SINT;
220 case MESA_FORMAT_INTENSITY_INT32:
221 return PIPE_FORMAT_I32_SINT;
222
223 case MESA_FORMAT_LUMINANCE_UINT8:
224 return PIPE_FORMAT_L8_UINT;
225 case MESA_FORMAT_LUMINANCE_UINT16:
226 return PIPE_FORMAT_L16_UINT;
227 case MESA_FORMAT_LUMINANCE_UINT32:
228 return PIPE_FORMAT_L32_UINT;
229
230 case MESA_FORMAT_LUMINANCE_INT8:
231 return PIPE_FORMAT_L8_SINT;
232 case MESA_FORMAT_LUMINANCE_INT16:
233 return PIPE_FORMAT_L16_SINT;
234 case MESA_FORMAT_LUMINANCE_INT32:
235 return PIPE_FORMAT_L32_SINT;
236
237 case MESA_FORMAT_LUMINANCE_ALPHA_UINT8:
238 return PIPE_FORMAT_L8A8_UINT;
239 case MESA_FORMAT_LUMINANCE_ALPHA_UINT16:
240 return PIPE_FORMAT_L16A16_UINT;
241 case MESA_FORMAT_LUMINANCE_ALPHA_UINT32:
242 return PIPE_FORMAT_L32A32_UINT;
243
244 case MESA_FORMAT_LUMINANCE_ALPHA_INT8:
245 return PIPE_FORMAT_L8A8_SINT;
246 case MESA_FORMAT_LUMINANCE_ALPHA_INT16:
247 return PIPE_FORMAT_L16A16_SINT;
248 case MESA_FORMAT_LUMINANCE_ALPHA_INT32:
249 return PIPE_FORMAT_L32A32_SINT;
250
251 case MESA_FORMAT_R_INT8:
252 return PIPE_FORMAT_R8_SINT;
253 case MESA_FORMAT_RG_INT8:
254 return PIPE_FORMAT_R8G8_SINT;
255 case MESA_FORMAT_RGB_INT8:
256 return PIPE_FORMAT_R8G8B8_SINT;
257 case MESA_FORMAT_RGBA_INT8:
258 return PIPE_FORMAT_R8G8B8A8_SINT;
259 case MESA_FORMAT_R_INT16:
260 return PIPE_FORMAT_R16_SINT;
261 case MESA_FORMAT_RG_INT16:
262 return PIPE_FORMAT_R16G16_SINT;
263 case MESA_FORMAT_RGB_INT16:
264 return PIPE_FORMAT_R16G16B16_SINT;
265 case MESA_FORMAT_RGBA_INT16:
266 return PIPE_FORMAT_R16G16B16A16_SINT;
267 case MESA_FORMAT_R_INT32:
268 return PIPE_FORMAT_R32_SINT;
269 case MESA_FORMAT_RG_INT32:
270 return PIPE_FORMAT_R32G32_SINT;
271 case MESA_FORMAT_RGB_INT32:
272 return PIPE_FORMAT_R32G32B32_SINT;
273 case MESA_FORMAT_RGBA_INT32:
274 return PIPE_FORMAT_R32G32B32A32_SINT;
275
276 /* unsigned int formats */
277 case MESA_FORMAT_R_UINT8:
278 return PIPE_FORMAT_R8_UINT;
279 case MESA_FORMAT_RG_UINT8:
280 return PIPE_FORMAT_R8G8_UINT;
281 case MESA_FORMAT_RGB_UINT8:
282 return PIPE_FORMAT_R8G8B8_UINT;
283 case MESA_FORMAT_RGBA_UINT8:
284 return PIPE_FORMAT_R8G8B8A8_UINT;
285 case MESA_FORMAT_R_UINT16:
286 return PIPE_FORMAT_R16_UINT;
287 case MESA_FORMAT_RG_UINT16:
288 return PIPE_FORMAT_R16G16_UINT;
289 case MESA_FORMAT_RGB_UINT16:
290 return PIPE_FORMAT_R16G16B16_UINT;
291 case MESA_FORMAT_RGBA_UINT16:
292 return PIPE_FORMAT_R16G16B16A16_UINT;
293 case MESA_FORMAT_R_UINT32:
294 return PIPE_FORMAT_R32_UINT;
295 case MESA_FORMAT_RG_UINT32:
296 return PIPE_FORMAT_R32G32_UINT;
297 case MESA_FORMAT_RGB_UINT32:
298 return PIPE_FORMAT_R32G32B32_UINT;
299 case MESA_FORMAT_RGBA_UINT32:
300 return PIPE_FORMAT_R32G32B32A32_UINT;
301
302 case MESA_FORMAT_RED_RGTC1:
303 return PIPE_FORMAT_RGTC1_UNORM;
304 case MESA_FORMAT_SIGNED_RED_RGTC1:
305 return PIPE_FORMAT_RGTC1_SNORM;
306 case MESA_FORMAT_RG_RGTC2:
307 return PIPE_FORMAT_RGTC2_UNORM;
308 case MESA_FORMAT_SIGNED_RG_RGTC2:
309 return PIPE_FORMAT_RGTC2_SNORM;
310
311 case MESA_FORMAT_L_LATC1:
312 return PIPE_FORMAT_LATC1_UNORM;
313 case MESA_FORMAT_SIGNED_L_LATC1:
314 return PIPE_FORMAT_LATC1_SNORM;
315 case MESA_FORMAT_LA_LATC2:
316 return PIPE_FORMAT_LATC2_UNORM;
317 case MESA_FORMAT_SIGNED_LA_LATC2:
318 return PIPE_FORMAT_LATC2_SNORM;
319
320 case MESA_FORMAT_ETC1_RGB8:
321 return PIPE_FORMAT_ETC1_RGB8;
322
323 /* signed normalized formats */
324 case MESA_FORMAT_SIGNED_R8:
325 return PIPE_FORMAT_R8_SNORM;
326 case MESA_FORMAT_SIGNED_RG88_REV:
327 return PIPE_FORMAT_R8G8_SNORM;
328 case MESA_FORMAT_SIGNED_RGBA8888_REV:
329 return PIPE_FORMAT_R8G8B8A8_SNORM;
330
331 case MESA_FORMAT_SIGNED_A8:
332 return PIPE_FORMAT_A8_SNORM;
333 case MESA_FORMAT_SIGNED_L8:
334 return PIPE_FORMAT_L8_SNORM;
335 case MESA_FORMAT_SIGNED_AL88:
336 return PIPE_FORMAT_L8A8_SNORM;
337 case MESA_FORMAT_SIGNED_I8:
338 return PIPE_FORMAT_I8_SNORM;
339
340 case MESA_FORMAT_SIGNED_R16:
341 return PIPE_FORMAT_R16_SNORM;
342 case MESA_FORMAT_SIGNED_GR1616:
343 return PIPE_FORMAT_R16G16_SNORM;
344 case MESA_FORMAT_SIGNED_RGBA_16:
345 return PIPE_FORMAT_R16G16B16A16_SNORM;
346
347 case MESA_FORMAT_SIGNED_A16:
348 return PIPE_FORMAT_A16_SNORM;
349 case MESA_FORMAT_SIGNED_L16:
350 return PIPE_FORMAT_L16_SNORM;
351 case MESA_FORMAT_SIGNED_AL1616:
352 return PIPE_FORMAT_L16A16_SNORM;
353 case MESA_FORMAT_SIGNED_I16:
354 return PIPE_FORMAT_I16_SNORM;
355
356 case MESA_FORMAT_RGB9_E5_FLOAT:
357 return PIPE_FORMAT_R9G9B9E5_FLOAT;
358 case MESA_FORMAT_R11_G11_B10_FLOAT:
359 return PIPE_FORMAT_R11G11B10_FLOAT;
360 case MESA_FORMAT_ARGB2101010_UINT:
361 return PIPE_FORMAT_B10G10R10A2_UINT;
362 default:
363 assert(0);
364 return PIPE_FORMAT_NONE;
365 }
366 }
367
368
369 /**
370 * Translate Gallium format to Mesa format.
371 */
372 gl_format
373 st_pipe_format_to_mesa_format(enum pipe_format format)
374 {
375 switch (format) {
376 case PIPE_FORMAT_A8B8G8R8_UNORM:
377 return MESA_FORMAT_RGBA8888;
378 case PIPE_FORMAT_R8G8B8A8_UNORM:
379 return MESA_FORMAT_RGBA8888_REV;
380 case PIPE_FORMAT_B8G8R8A8_UNORM:
381 return MESA_FORMAT_ARGB8888;
382 case PIPE_FORMAT_A8R8G8B8_UNORM:
383 return MESA_FORMAT_ARGB8888_REV;
384 case PIPE_FORMAT_X8B8G8R8_UNORM:
385 return MESA_FORMAT_RGBX8888;
386 case PIPE_FORMAT_R8G8B8X8_UNORM:
387 return MESA_FORMAT_RGBX8888_REV;
388 case PIPE_FORMAT_B8G8R8X8_UNORM:
389 return MESA_FORMAT_XRGB8888;
390 case PIPE_FORMAT_X8R8G8B8_UNORM:
391 return MESA_FORMAT_XRGB8888_REV;
392 case PIPE_FORMAT_B5G5R5A1_UNORM:
393 return MESA_FORMAT_ARGB1555;
394 case PIPE_FORMAT_B4G4R4A4_UNORM:
395 return MESA_FORMAT_ARGB4444;
396 case PIPE_FORMAT_B5G6R5_UNORM:
397 return MESA_FORMAT_RGB565;
398 case PIPE_FORMAT_B2G3R3_UNORM:
399 return MESA_FORMAT_RGB332;
400 case PIPE_FORMAT_B10G10R10A2_UNORM:
401 return MESA_FORMAT_ARGB2101010;
402 case PIPE_FORMAT_L4A4_UNORM:
403 return MESA_FORMAT_AL44;
404 case PIPE_FORMAT_L8A8_UNORM:
405 return MESA_FORMAT_AL88;
406 case PIPE_FORMAT_L16A16_UNORM:
407 return MESA_FORMAT_AL1616;
408 case PIPE_FORMAT_A8_UNORM:
409 return MESA_FORMAT_A8;
410 case PIPE_FORMAT_A16_UNORM:
411 return MESA_FORMAT_A16;
412 case PIPE_FORMAT_L8_UNORM:
413 return MESA_FORMAT_L8;
414 case PIPE_FORMAT_L16_UNORM:
415 return MESA_FORMAT_L16;
416 case PIPE_FORMAT_I8_UNORM:
417 return MESA_FORMAT_I8;
418 case PIPE_FORMAT_I16_UNORM:
419 return MESA_FORMAT_I16;
420 case PIPE_FORMAT_S8_UINT:
421 return MESA_FORMAT_S8;
422
423 case PIPE_FORMAT_R16G16B16A16_UNORM:
424 return MESA_FORMAT_RGBA_16;
425
426 case PIPE_FORMAT_Z16_UNORM:
427 return MESA_FORMAT_Z16;
428 case PIPE_FORMAT_Z32_UNORM:
429 return MESA_FORMAT_Z32;
430 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
431 return MESA_FORMAT_Z24_S8;
432 case PIPE_FORMAT_X8Z24_UNORM:
433 return MESA_FORMAT_Z24_X8;
434 case PIPE_FORMAT_Z24X8_UNORM:
435 return MESA_FORMAT_X8_Z24;
436 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
437 return MESA_FORMAT_S8_Z24;
438 case PIPE_FORMAT_Z32_FLOAT:
439 return MESA_FORMAT_Z32_FLOAT;
440 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
441 return MESA_FORMAT_Z32_FLOAT_X24S8;
442
443 case PIPE_FORMAT_UYVY:
444 return MESA_FORMAT_YCBCR;
445 case PIPE_FORMAT_YUYV:
446 return MESA_FORMAT_YCBCR_REV;
447
448 case PIPE_FORMAT_DXT1_RGB:
449 return MESA_FORMAT_RGB_DXT1;
450 case PIPE_FORMAT_DXT1_RGBA:
451 return MESA_FORMAT_RGBA_DXT1;
452 case PIPE_FORMAT_DXT3_RGBA:
453 return MESA_FORMAT_RGBA_DXT3;
454 case PIPE_FORMAT_DXT5_RGBA:
455 return MESA_FORMAT_RGBA_DXT5;
456 #if FEATURE_EXT_texture_sRGB
457 case PIPE_FORMAT_DXT1_SRGB:
458 return MESA_FORMAT_SRGB_DXT1;
459 case PIPE_FORMAT_DXT1_SRGBA:
460 return MESA_FORMAT_SRGBA_DXT1;
461 case PIPE_FORMAT_DXT3_SRGBA:
462 return MESA_FORMAT_SRGBA_DXT3;
463 case PIPE_FORMAT_DXT5_SRGBA:
464 return MESA_FORMAT_SRGBA_DXT5;
465 case PIPE_FORMAT_L8A8_SRGB:
466 return MESA_FORMAT_SLA8;
467 case PIPE_FORMAT_L8_SRGB:
468 return MESA_FORMAT_SL8;
469 case PIPE_FORMAT_R8G8B8_SRGB:
470 return MESA_FORMAT_SRGB8;
471 case PIPE_FORMAT_A8B8G8R8_SRGB:
472 return MESA_FORMAT_SRGBA8;
473 case PIPE_FORMAT_B8G8R8A8_SRGB:
474 return MESA_FORMAT_SARGB8;
475 #endif
476 case PIPE_FORMAT_R32G32B32A32_FLOAT:
477 return MESA_FORMAT_RGBA_FLOAT32;
478 case PIPE_FORMAT_R16G16B16A16_FLOAT:
479 return MESA_FORMAT_RGBA_FLOAT16;
480 case PIPE_FORMAT_R32G32B32_FLOAT:
481 return MESA_FORMAT_RGB_FLOAT32;
482 case PIPE_FORMAT_R16G16B16_FLOAT:
483 return MESA_FORMAT_RGB_FLOAT16;
484 case PIPE_FORMAT_L32A32_FLOAT:
485 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
486 case PIPE_FORMAT_L16A16_FLOAT:
487 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
488 case PIPE_FORMAT_L32_FLOAT:
489 return MESA_FORMAT_LUMINANCE_FLOAT32;
490 case PIPE_FORMAT_L16_FLOAT:
491 return MESA_FORMAT_LUMINANCE_FLOAT16;
492 case PIPE_FORMAT_A32_FLOAT:
493 return MESA_FORMAT_ALPHA_FLOAT32;
494 case PIPE_FORMAT_A16_FLOAT:
495 return MESA_FORMAT_ALPHA_FLOAT16;
496 case PIPE_FORMAT_I32_FLOAT:
497 return MESA_FORMAT_INTENSITY_FLOAT32;
498 case PIPE_FORMAT_I16_FLOAT:
499 return MESA_FORMAT_INTENSITY_FLOAT16;
500 case PIPE_FORMAT_R32_FLOAT:
501 return MESA_FORMAT_R_FLOAT32;
502 case PIPE_FORMAT_R16_FLOAT:
503 return MESA_FORMAT_R_FLOAT16;
504 case PIPE_FORMAT_R32G32_FLOAT:
505 return MESA_FORMAT_RG_FLOAT32;
506 case PIPE_FORMAT_R16G16_FLOAT:
507 return MESA_FORMAT_RG_FLOAT16;
508
509 case PIPE_FORMAT_R8_UNORM:
510 return MESA_FORMAT_R8;
511 case PIPE_FORMAT_R16_UNORM:
512 return MESA_FORMAT_R16;
513 case PIPE_FORMAT_R8G8_UNORM:
514 return MESA_FORMAT_GR88;
515 case PIPE_FORMAT_R16G16_UNORM:
516 return MESA_FORMAT_RG1616;
517
518 case PIPE_FORMAT_A8_UINT:
519 return MESA_FORMAT_ALPHA_UINT8;
520 case PIPE_FORMAT_A16_UINT:
521 return MESA_FORMAT_ALPHA_UINT16;
522 case PIPE_FORMAT_A32_UINT:
523 return MESA_FORMAT_ALPHA_UINT32;
524 case PIPE_FORMAT_A8_SINT:
525 return MESA_FORMAT_ALPHA_INT8;
526 case PIPE_FORMAT_A16_SINT:
527 return MESA_FORMAT_ALPHA_INT16;
528 case PIPE_FORMAT_A32_SINT:
529 return MESA_FORMAT_ALPHA_INT32;
530
531 case PIPE_FORMAT_I8_UINT:
532 return MESA_FORMAT_INTENSITY_UINT8;
533 case PIPE_FORMAT_I16_UINT:
534 return MESA_FORMAT_INTENSITY_UINT16;
535 case PIPE_FORMAT_I32_UINT:
536 return MESA_FORMAT_INTENSITY_UINT32;
537 case PIPE_FORMAT_I8_SINT:
538 return MESA_FORMAT_INTENSITY_INT8;
539 case PIPE_FORMAT_I16_SINT:
540 return MESA_FORMAT_INTENSITY_INT16;
541 case PIPE_FORMAT_I32_SINT:
542 return MESA_FORMAT_INTENSITY_INT32;
543
544 case PIPE_FORMAT_L8_UINT:
545 return MESA_FORMAT_LUMINANCE_UINT8;
546 case PIPE_FORMAT_L16_UINT:
547 return MESA_FORMAT_LUMINANCE_UINT16;
548 case PIPE_FORMAT_L32_UINT:
549 return MESA_FORMAT_LUMINANCE_UINT32;
550 case PIPE_FORMAT_L8_SINT:
551 return MESA_FORMAT_LUMINANCE_INT8;
552 case PIPE_FORMAT_L16_SINT:
553 return MESA_FORMAT_LUMINANCE_INT16;
554 case PIPE_FORMAT_L32_SINT:
555 return MESA_FORMAT_LUMINANCE_INT32;
556
557 case PIPE_FORMAT_L8A8_UINT:
558 return MESA_FORMAT_LUMINANCE_ALPHA_UINT8;
559 case PIPE_FORMAT_L16A16_UINT:
560 return MESA_FORMAT_LUMINANCE_ALPHA_UINT16;
561 case PIPE_FORMAT_L32A32_UINT:
562 return MESA_FORMAT_LUMINANCE_ALPHA_UINT32;
563 case PIPE_FORMAT_L8A8_SINT:
564 return MESA_FORMAT_LUMINANCE_ALPHA_INT8;
565 case PIPE_FORMAT_L16A16_SINT:
566 return MESA_FORMAT_LUMINANCE_ALPHA_INT16;
567 case PIPE_FORMAT_L32A32_SINT:
568 return MESA_FORMAT_LUMINANCE_ALPHA_INT32;
569
570 case PIPE_FORMAT_R8_SINT:
571 return MESA_FORMAT_R_INT8;
572 case PIPE_FORMAT_R8G8_SINT:
573 return MESA_FORMAT_RG_INT8;
574 case PIPE_FORMAT_R8G8B8_SINT:
575 return MESA_FORMAT_RGB_INT8;
576 case PIPE_FORMAT_R8G8B8A8_SINT:
577 return MESA_FORMAT_RGBA_INT8;
578
579 case PIPE_FORMAT_R16_SINT:
580 return MESA_FORMAT_R_INT16;
581 case PIPE_FORMAT_R16G16_SINT:
582 return MESA_FORMAT_RG_INT16;
583 case PIPE_FORMAT_R16G16B16_SINT:
584 return MESA_FORMAT_RGB_INT16;
585 case PIPE_FORMAT_R16G16B16A16_SINT:
586 return MESA_FORMAT_RGBA_INT16;
587
588 case PIPE_FORMAT_R32_SINT:
589 return MESA_FORMAT_R_INT32;
590 case PIPE_FORMAT_R32G32_SINT:
591 return MESA_FORMAT_RG_INT32;
592 case PIPE_FORMAT_R32G32B32_SINT:
593 return MESA_FORMAT_RGB_INT32;
594 case PIPE_FORMAT_R32G32B32A32_SINT:
595 return MESA_FORMAT_RGBA_INT32;
596
597 /* unsigned int formats */
598 case PIPE_FORMAT_R8_UINT:
599 return MESA_FORMAT_R_UINT8;
600 case PIPE_FORMAT_R8G8_UINT:
601 return MESA_FORMAT_RG_UINT8;
602 case PIPE_FORMAT_R8G8B8_UINT:
603 return MESA_FORMAT_RGB_UINT8;
604 case PIPE_FORMAT_R8G8B8A8_UINT:
605 return MESA_FORMAT_RGBA_UINT8;
606
607 case PIPE_FORMAT_R16_UINT:
608 return MESA_FORMAT_R_UINT16;
609 case PIPE_FORMAT_R16G16_UINT:
610 return MESA_FORMAT_RG_UINT16;
611 case PIPE_FORMAT_R16G16B16_UINT:
612 return MESA_FORMAT_RGB_UINT16;
613 case PIPE_FORMAT_R16G16B16A16_UINT:
614 return MESA_FORMAT_RGBA_UINT16;
615
616 case PIPE_FORMAT_R32_UINT:
617 return MESA_FORMAT_R_UINT32;
618 case PIPE_FORMAT_R32G32_UINT:
619 return MESA_FORMAT_RG_UINT32;
620 case PIPE_FORMAT_R32G32B32_UINT:
621 return MESA_FORMAT_RGB_UINT32;
622 case PIPE_FORMAT_R32G32B32A32_UINT:
623 return MESA_FORMAT_RGBA_UINT32;
624
625 case PIPE_FORMAT_RGTC1_UNORM:
626 return MESA_FORMAT_RED_RGTC1;
627 case PIPE_FORMAT_RGTC1_SNORM:
628 return MESA_FORMAT_SIGNED_RED_RGTC1;
629 case PIPE_FORMAT_RGTC2_UNORM:
630 return MESA_FORMAT_RG_RGTC2;
631 case PIPE_FORMAT_RGTC2_SNORM:
632 return MESA_FORMAT_SIGNED_RG_RGTC2;
633
634 case PIPE_FORMAT_LATC1_UNORM:
635 return MESA_FORMAT_L_LATC1;
636 case PIPE_FORMAT_LATC1_SNORM:
637 return MESA_FORMAT_SIGNED_L_LATC1;
638 case PIPE_FORMAT_LATC2_UNORM:
639 return MESA_FORMAT_LA_LATC2;
640 case PIPE_FORMAT_LATC2_SNORM:
641 return MESA_FORMAT_SIGNED_LA_LATC2;
642
643 case PIPE_FORMAT_ETC1_RGB8:
644 return MESA_FORMAT_ETC1_RGB8;
645
646 /* signed normalized formats */
647 case PIPE_FORMAT_R8_SNORM:
648 return MESA_FORMAT_SIGNED_R8;
649 case PIPE_FORMAT_R8G8_SNORM:
650 return MESA_FORMAT_SIGNED_RG88_REV;
651 case PIPE_FORMAT_R8G8B8A8_SNORM:
652 return MESA_FORMAT_SIGNED_RGBA8888_REV;
653
654 case PIPE_FORMAT_A8_SNORM:
655 return MESA_FORMAT_SIGNED_A8;
656 case PIPE_FORMAT_L8_SNORM:
657 return MESA_FORMAT_SIGNED_L8;
658 case PIPE_FORMAT_L8A8_SNORM:
659 return MESA_FORMAT_SIGNED_AL88;
660 case PIPE_FORMAT_I8_SNORM:
661 return MESA_FORMAT_SIGNED_I8;
662
663 case PIPE_FORMAT_R16_SNORM:
664 return MESA_FORMAT_SIGNED_R16;
665 case PIPE_FORMAT_R16G16_SNORM:
666 return MESA_FORMAT_SIGNED_GR1616;
667 case PIPE_FORMAT_R16G16B16A16_SNORM:
668 return MESA_FORMAT_SIGNED_RGBA_16;
669
670 case PIPE_FORMAT_A16_SNORM:
671 return MESA_FORMAT_SIGNED_A16;
672 case PIPE_FORMAT_L16_SNORM:
673 return MESA_FORMAT_SIGNED_L16;
674 case PIPE_FORMAT_L16A16_SNORM:
675 return MESA_FORMAT_SIGNED_AL1616;
676 case PIPE_FORMAT_I16_SNORM:
677 return MESA_FORMAT_SIGNED_I16;
678
679 case PIPE_FORMAT_R9G9B9E5_FLOAT:
680 return MESA_FORMAT_RGB9_E5_FLOAT;
681 case PIPE_FORMAT_R11G11B10_FLOAT:
682 return MESA_FORMAT_R11_G11_B10_FLOAT;
683
684 case PIPE_FORMAT_B10G10R10A2_UINT:
685 return MESA_FORMAT_ARGB2101010_UINT;
686 default:
687 assert(0);
688 return MESA_FORMAT_NONE;
689 }
690 }
691
692
693 /**
694 * Map GL texture formats to Gallium pipe formats.
695 */
696 struct format_mapping
697 {
698 GLenum glFormats[18]; /**< list of GLenum formats, 0-terminated */
699 enum pipe_format pipeFormats[10]; /**< list of pipe formats, 0-terminated */
700 };
701
702
703 #define DEFAULT_RGBA_FORMATS \
704 PIPE_FORMAT_B8G8R8A8_UNORM, \
705 PIPE_FORMAT_A8R8G8B8_UNORM, \
706 PIPE_FORMAT_A8B8G8R8_UNORM, \
707 PIPE_FORMAT_B5G6R5_UNORM, \
708 0
709
710 #define DEFAULT_RGB_FORMATS \
711 PIPE_FORMAT_B8G8R8X8_UNORM, \
712 PIPE_FORMAT_X8R8G8B8_UNORM, \
713 PIPE_FORMAT_X8B8G8R8_UNORM, \
714 PIPE_FORMAT_B8G8R8A8_UNORM, \
715 PIPE_FORMAT_A8R8G8B8_UNORM, \
716 PIPE_FORMAT_A8B8G8R8_UNORM, \
717 PIPE_FORMAT_B5G6R5_UNORM, \
718 0
719
720 #define DEFAULT_SRGBA_FORMATS \
721 PIPE_FORMAT_B8G8R8A8_SRGB, \
722 PIPE_FORMAT_A8R8G8B8_SRGB, \
723 PIPE_FORMAT_A8B8G8R8_SRGB, \
724 0
725
726 #define DEFAULT_DEPTH_FORMATS \
727 PIPE_FORMAT_Z24X8_UNORM, \
728 PIPE_FORMAT_X8Z24_UNORM, \
729 PIPE_FORMAT_Z16_UNORM, \
730 PIPE_FORMAT_Z24_UNORM_S8_UINT, \
731 PIPE_FORMAT_S8_UINT_Z24_UNORM, \
732 0
733
734 #define DEFAULT_SNORM8_RGBA_FORMATS \
735 PIPE_FORMAT_R8G8B8A8_SNORM, \
736 0
737
738 #define DEFAULT_UNORM16_RGBA_FORMATS \
739 PIPE_FORMAT_R16G16B16A16_UNORM, \
740 DEFAULT_RGBA_FORMATS
741
742
743 /**
744 * This table maps OpenGL texture format enums to Gallium pipe_format enums.
745 * Multiple GL enums might map to multiple pipe_formats.
746 * The first pipe format in the list that's supported is the one that's chosen.
747 */
748 static const struct format_mapping format_map[] = {
749 /* Basic RGB, RGBA formats */
750 {
751 { GL_RGB10, GL_RGB10_A2, 0 },
752 { PIPE_FORMAT_B10G10R10A2_UNORM, DEFAULT_RGBA_FORMATS }
753 },
754 {
755 { 4, GL_RGBA, GL_RGBA8, 0 },
756 { PIPE_FORMAT_R8G8B8A8_UNORM, DEFAULT_RGBA_FORMATS }
757 },
758 {
759 { GL_BGRA, 0 },
760 { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGBA_FORMATS }
761 },
762 {
763 { 3, GL_RGB, GL_RGB8, 0 },
764 { DEFAULT_RGB_FORMATS }
765 },
766 {
767 { GL_RGB12, GL_RGB16, GL_RGBA12, GL_RGBA16, 0 },
768 { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
769 },
770 {
771 { GL_RGBA4, GL_RGBA2, 0 },
772 { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
773 },
774 {
775 { GL_RGB5_A1, 0 },
776 { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
777 },
778 {
779 { GL_R3_G3_B2, 0 },
780 { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
781 PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
782 },
783 {
784 { GL_RGB5, GL_RGB4 },
785 { PIPE_FORMAT_B5G6R5_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
786 DEFAULT_RGBA_FORMATS }
787 },
788 {
789 { GL_RGB565 },
790 { PIPE_FORMAT_B5G6R5_UNORM, DEFAULT_RGBA_FORMATS }
791 },
792
793 /* basic Alpha formats */
794 {
795 { GL_ALPHA12, GL_ALPHA16, 0 },
796 { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
797 DEFAULT_RGBA_FORMATS }
798 },
799 {
800 { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
801 { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
802 },
803
804 /* basic Luminance formats */
805 {
806 { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
807 { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
808 },
809 {
810 { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
811 { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
812 },
813
814 /* basic Luminance/Alpha formats */
815 {
816 { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
817 GL_LUMINANCE16_ALPHA16, 0},
818 { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
819 DEFAULT_RGBA_FORMATS }
820 },
821 {
822 { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
823 { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
824 },
825 {
826 { GL_LUMINANCE4_ALPHA4, 0 },
827 { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
828 DEFAULT_RGBA_FORMATS }
829 },
830
831 /* basic Intensity formats */
832 {
833 { GL_INTENSITY12, GL_INTENSITY16, 0 },
834 { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
835 },
836 {
837 { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
838 GL_COMPRESSED_INTENSITY, 0 },
839 { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
840 },
841
842 /* YCbCr */
843 {
844 { GL_YCBCR_MESA, 0 },
845 { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
846 },
847
848 /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
849 {
850 { GL_COMPRESSED_RGB, 0 },
851 { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
852 },
853 {
854 { GL_COMPRESSED_RGBA, 0 },
855 { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
856 },
857 {
858 { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
859 { PIPE_FORMAT_DXT1_RGB, 0 }
860 },
861 {
862 { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
863 { PIPE_FORMAT_DXT1_RGBA, 0 }
864 },
865 {
866 { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
867 { PIPE_FORMAT_DXT3_RGBA, 0 }
868 },
869 {
870 { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
871 { PIPE_FORMAT_DXT5_RGBA, 0 }
872 },
873
874 #if 0
875 {
876 { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
877 { PIPE_FORMAT_RGB_FXT1, 0 }
878 },
879 {
880 { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
881 { PIPE_FORMAT_RGBA_FXT1, 0 }
882 },
883 #endif
884
885 /* Depth formats */
886 {
887 { GL_DEPTH_COMPONENT16, 0 },
888 { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
889 },
890 {
891 { GL_DEPTH_COMPONENT24, 0 },
892 { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
893 DEFAULT_DEPTH_FORMATS }
894 },
895 {
896 { GL_DEPTH_COMPONENT32, 0 },
897 { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
898 },
899 {
900 { GL_DEPTH_COMPONENT, 0 },
901 { DEFAULT_DEPTH_FORMATS }
902 },
903 {
904 { GL_DEPTH_COMPONENT32F, 0 },
905 { PIPE_FORMAT_Z32_FLOAT, 0 }
906 },
907
908 /* stencil formats */
909 {
910 { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
911 GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
912 {
913 PIPE_FORMAT_S8_UINT, PIPE_FORMAT_Z24_UNORM_S8_UINT,
914 PIPE_FORMAT_S8_UINT_Z24_UNORM, 0
915 }
916 },
917
918 /* Depth / Stencil formats */
919 {
920 { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
921 { PIPE_FORMAT_Z24_UNORM_S8_UINT, PIPE_FORMAT_S8_UINT_Z24_UNORM, 0 }
922 },
923 {
924 { GL_DEPTH32F_STENCIL8, 0 },
925 { PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, 0 }
926 },
927
928 /* sRGB formats */
929 {
930 { GL_SRGB_EXT, GL_SRGB8_EXT, GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
931 { DEFAULT_SRGBA_FORMATS }
932 },
933 {
934 { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
935 { PIPE_FORMAT_DXT1_SRGB, DEFAULT_SRGBA_FORMATS }
936 },
937 {
938 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
939 { PIPE_FORMAT_DXT1_SRGBA, 0 }
940 },
941 {
942 { GL_COMPRESSED_SRGB_ALPHA_EXT,
943 GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
944 { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
945 },
946 {
947 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
948 { PIPE_FORMAT_DXT5_SRGBA, 0 }
949 },
950 {
951 { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
952 GL_COMPRESSED_SLUMINANCE_EXT, GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
953 { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
954 },
955 {
956 { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, 0 },
957 { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
958 },
959
960 /* 16-bit float formats */
961 {
962 { GL_RGBA16F_ARB, 0 },
963 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
964 },
965 {
966 { GL_RGB16F_ARB, 0 },
967 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
968 PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
969 },
970 {
971 { GL_LUMINANCE_ALPHA16F_ARB, 0 },
972 { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
973 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
974 },
975 {
976 { GL_ALPHA16F_ARB, 0 },
977 { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
978 PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
979 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
980 },
981 {
982 { GL_INTENSITY16F_ARB, 0 },
983 { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
984 PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
985 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
986 },
987 {
988 { GL_LUMINANCE16F_ARB, 0 },
989 { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
990 PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
991 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
992 },
993 {
994 { GL_R16F, 0 },
995 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
996 PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
997 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
998 },
999 {
1000 { GL_RG16F, 0 },
1001 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1002 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1003 },
1004
1005 /* 32-bit float formats */
1006 {
1007 { GL_RGBA32F_ARB, 0 },
1008 { PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1009 },
1010 {
1011 { GL_RGB32F_ARB, 0 },
1012 { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1013 PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1014 },
1015 {
1016 { GL_LUMINANCE_ALPHA32F_ARB, 0 },
1017 { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1018 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1019 },
1020 {
1021 { GL_ALPHA32F_ARB, 0 },
1022 { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1023 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_A16_FLOAT,
1024 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1025 },
1026 {
1027 { GL_INTENSITY32F_ARB, 0 },
1028 { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1029 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_I16_FLOAT,
1030 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1031 },
1032 {
1033 { GL_LUMINANCE32F_ARB, 0 },
1034 { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1035 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_L16_FLOAT,
1036 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1037 },
1038 {
1039 { GL_R32F, 0 },
1040 { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
1041 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16_FLOAT,
1042 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1043 },
1044 {
1045 { GL_RG32F, 0 },
1046 { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1047 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1048 },
1049
1050 /* R, RG formats */
1051 {
1052 { GL_RED, GL_R8, 0 },
1053 { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1054 },
1055 {
1056 { GL_RG, GL_RG8, 0 },
1057 { PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1058 },
1059 {
1060 { GL_R16, 0 },
1061 { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R16G16_UNORM,
1062 DEFAULT_UNORM16_RGBA_FORMATS }
1063 },
1064 {
1065 { GL_RG16, 0 },
1066 { PIPE_FORMAT_R16G16_UNORM, DEFAULT_UNORM16_RGBA_FORMATS }
1067 },
1068
1069 /* compressed R, RG formats */
1070 {
1071 { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
1072 { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, DEFAULT_RGBA_FORMATS }
1073 },
1074 {
1075 { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
1076 { PIPE_FORMAT_RGTC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1077 },
1078 {
1079 { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
1080 { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1081 },
1082 {
1083 { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
1084 { PIPE_FORMAT_RGTC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1085 },
1086 {
1087 { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
1088 { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
1089 },
1090 {
1091 { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
1092 { PIPE_FORMAT_LATC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1093 },
1094 {
1095 { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
1096 GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
1097 { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1098 },
1099 {
1100 { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
1101 { PIPE_FORMAT_LATC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1102 },
1103
1104 /* ETC1 */
1105 {
1106 { GL_ETC1_RGB8_OES, 0 },
1107 { PIPE_FORMAT_ETC1_RGB8, 0 }
1108 },
1109
1110 /* signed/unsigned integer formats.
1111 */
1112 {
1113 { GL_RED_INTEGER_EXT,
1114 GL_GREEN_INTEGER_EXT,
1115 GL_BLUE_INTEGER_EXT,
1116 GL_RGBA_INTEGER_EXT,
1117 GL_BGRA_INTEGER_EXT,
1118 GL_RGBA8I_EXT, 0 },
1119 { PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1120 },
1121 {
1122 { GL_RGB_INTEGER_EXT,
1123 GL_BGR_INTEGER_EXT,
1124 GL_RGB8I_EXT, 0 },
1125 { PIPE_FORMAT_R8G8B8_SINT,
1126 PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1127 },
1128 {
1129 { GL_ALPHA_INTEGER_EXT,
1130 GL_ALPHA8I_EXT, 0 },
1131 { PIPE_FORMAT_A8_SINT, 0 }
1132 },
1133 {
1134 { GL_ALPHA16I_EXT, 0 },
1135 { PIPE_FORMAT_A16_SINT, 0 }
1136 },
1137 {
1138 { GL_ALPHA32I_EXT, 0 },
1139 { PIPE_FORMAT_A32_SINT, 0 }
1140 },
1141 {
1142 { GL_ALPHA8UI_EXT, 0 },
1143 { PIPE_FORMAT_A8_UINT, 0 }
1144 },
1145 {
1146 { GL_ALPHA16UI_EXT, 0 },
1147 { PIPE_FORMAT_A16_UINT, 0 }
1148 },
1149 {
1150 { GL_ALPHA32UI_EXT, 0 },
1151 { PIPE_FORMAT_A32_UINT, 0 }
1152 },
1153 {
1154 { GL_INTENSITY8I_EXT, 0 },
1155 { PIPE_FORMAT_I8_SINT, 0 }
1156 },
1157 {
1158 { GL_INTENSITY16I_EXT, 0 },
1159 { PIPE_FORMAT_I16_SINT, 0 }
1160 },
1161 {
1162 { GL_INTENSITY32I_EXT, 0 },
1163 { PIPE_FORMAT_I32_SINT, 0 }
1164 },
1165 {
1166 { GL_INTENSITY8UI_EXT, 0 },
1167 { PIPE_FORMAT_I8_UINT, 0 }
1168 },
1169 {
1170 { GL_INTENSITY16UI_EXT, 0 },
1171 { PIPE_FORMAT_I16_UINT, 0 }
1172 },
1173 {
1174 { GL_INTENSITY32UI_EXT, 0 },
1175 { PIPE_FORMAT_I32_UINT, 0 }
1176 },
1177 {
1178 { GL_LUMINANCE8I_EXT, 0 },
1179 { PIPE_FORMAT_L8_SINT, 0 }
1180 },
1181 {
1182 { GL_LUMINANCE16I_EXT, 0 },
1183 { PIPE_FORMAT_L16_SINT, 0 }
1184 },
1185 {
1186 { GL_LUMINANCE32I_EXT, 0 },
1187 { PIPE_FORMAT_L32_SINT, 0 }
1188 },
1189 {
1190 { GL_LUMINANCE_INTEGER_EXT,
1191 GL_LUMINANCE8UI_EXT, 0 },
1192 { PIPE_FORMAT_L8_UINT, 0 }
1193 },
1194 {
1195 { GL_LUMINANCE16UI_EXT, 0 },
1196 { PIPE_FORMAT_L16_UINT, 0 }
1197 },
1198 {
1199 { GL_LUMINANCE32UI_EXT, 0 },
1200 { PIPE_FORMAT_L32_UINT, 0 }
1201 },
1202 {
1203 { GL_LUMINANCE_ALPHA_INTEGER_EXT,
1204 GL_LUMINANCE_ALPHA8I_EXT, 0 },
1205 { PIPE_FORMAT_L8A8_SINT, 0 }
1206 },
1207 {
1208 { GL_LUMINANCE_ALPHA16I_EXT, 0 },
1209 { PIPE_FORMAT_L16A16_SINT, 0 }
1210 },
1211 {
1212 { GL_LUMINANCE_ALPHA32I_EXT, 0 },
1213 { PIPE_FORMAT_L32A32_SINT, 0 }
1214 },
1215 {
1216 { GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1217 { PIPE_FORMAT_L8A8_UINT, 0 }
1218 },
1219 {
1220 { GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1221 { PIPE_FORMAT_L16A16_UINT, 0 }
1222 },
1223 {
1224 { GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1225 { PIPE_FORMAT_L32A32_UINT, 0 }
1226 },
1227 {
1228 { GL_RGB16I_EXT, 0 },
1229 { PIPE_FORMAT_R16G16B16_SINT,
1230 PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1231 },
1232 {
1233 { GL_RGBA16I_EXT, 0 },
1234 { PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1235 },
1236 {
1237 { GL_RGB32I_EXT, 0 },
1238 { PIPE_FORMAT_R32G32B32_SINT,
1239 PIPE_FORMAT_R32G32B32A32_SINT, 0 },
1240 },
1241 {
1242 { GL_RGBA32I_EXT, 0 },
1243 { PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1244 },
1245 {
1246 { GL_RGBA8UI_EXT, 0 },
1247 { PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1248 },
1249 {
1250 { GL_RGB8UI_EXT, 0 },
1251 { PIPE_FORMAT_R8G8B8_UINT,
1252 PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1253 },
1254 {
1255 { GL_RGB16UI_EXT, 0 },
1256 { PIPE_FORMAT_R16G16B16_UINT,
1257 PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1258 },
1259 {
1260 { GL_RGBA16UI_EXT, 0 },
1261 { PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1262 },
1263 {
1264 { GL_RGB32UI_EXT, 0},
1265 { PIPE_FORMAT_R32G32B32_UINT,
1266 PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1267 },
1268 {
1269 { GL_RGBA32UI_EXT, 0},
1270 { PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1271 },
1272 {
1273 { GL_R8I, 0},
1274 { PIPE_FORMAT_R8_SINT, 0},
1275 },
1276 {
1277 { GL_R16I, 0},
1278 { PIPE_FORMAT_R16_SINT, 0},
1279 },
1280 {
1281 { GL_R32I, 0},
1282 { PIPE_FORMAT_R32_SINT, 0},
1283 },
1284 {
1285 { GL_R8UI, 0},
1286 { PIPE_FORMAT_R8_UINT, 0},
1287 },
1288 {
1289 { GL_R16UI, 0},
1290 { PIPE_FORMAT_R16_UINT, 0},
1291 },
1292 {
1293 { GL_R32UI, 0},
1294 { PIPE_FORMAT_R32_UINT, 0},
1295 },
1296 {
1297 { GL_RG8I, 0},
1298 { PIPE_FORMAT_R8G8_SINT, 0},
1299 },
1300 {
1301 { GL_RG16I, 0},
1302 { PIPE_FORMAT_R16G16_SINT, 0},
1303 },
1304 {
1305 { GL_RG32I, 0},
1306 { PIPE_FORMAT_R32G32_SINT, 0},
1307 },
1308 {
1309 { GL_RG8UI, 0},
1310 { PIPE_FORMAT_R8G8_UINT, 0},
1311 },
1312 {
1313 { GL_RG16UI, 0},
1314 { PIPE_FORMAT_R16G16_UINT, 0},
1315 },
1316 {
1317 { GL_RG32UI, 0},
1318 { PIPE_FORMAT_R32G32_UINT, 0},
1319 },
1320 /* signed normalized formats */
1321 {
1322 { GL_RED_SNORM, GL_R8_SNORM, 0 },
1323 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1324 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1325 },
1326 {
1327 { GL_R16_SNORM, 0 },
1328 { PIPE_FORMAT_R16_SNORM,
1329 PIPE_FORMAT_R16G16_SNORM,
1330 PIPE_FORMAT_R16G16B16A16_SNORM,
1331 PIPE_FORMAT_R8_SNORM,
1332 PIPE_FORMAT_R8G8_SNORM,
1333 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1334 },
1335 {
1336 { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1337 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1338 },
1339 {
1340 { GL_RG16_SNORM, 0 },
1341 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1342 PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1343 },
1344 {
1345 { GL_RGB_SNORM, GL_RGB8_SNORM, GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1346 { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1347 },
1348 {
1349 { GL_RGB16_SNORM, GL_RGBA16_SNORM, 0 },
1350 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1351 },
1352 {
1353 { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1354 { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1355 },
1356 {
1357 { GL_ALPHA16_SNORM, 0 },
1358 { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1359 PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1360 },
1361 {
1362 { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1363 { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1364 },
1365 {
1366 { GL_LUMINANCE16_SNORM, 0 },
1367 { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1368 PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1369 },
1370 {
1371 { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1372 { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1373 },
1374 {
1375 { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
1376 { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1377 PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1378 },
1379 {
1380 { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
1381 { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1382 },
1383 {
1384 { GL_INTENSITY16_SNORM, 0 },
1385 { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1386 PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1387 },
1388 {
1389 { GL_RGB9_E5, 0 },
1390 { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
1391 },
1392 {
1393 { GL_R11F_G11F_B10F, 0 },
1394 { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
1395 },
1396 {
1397 { GL_RGB10_A2UI, 0 },
1398 { PIPE_FORMAT_B10G10R10A2_UINT, 0 }
1399 },
1400 };
1401
1402
1403 /**
1404 * Return first supported format from the given list.
1405 */
1406 static enum pipe_format
1407 find_supported_format(struct pipe_screen *screen,
1408 const enum pipe_format formats[],
1409 enum pipe_texture_target target,
1410 unsigned sample_count,
1411 unsigned tex_usage)
1412 {
1413 uint i;
1414 for (i = 0; formats[i]; i++) {
1415 if (screen->is_format_supported(screen, formats[i], target,
1416 sample_count, tex_usage)) {
1417 return formats[i];
1418 }
1419 }
1420 return PIPE_FORMAT_NONE;
1421 }
1422
1423 struct exact_format_mapping
1424 {
1425 GLenum format;
1426 GLenum type;
1427 enum pipe_format pformat;
1428 };
1429
1430 static const struct exact_format_mapping rgba8888_tbl[] =
1431 {
1432 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8B8G8R8_UNORM },
1433 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_A8B8G8R8_UNORM },
1434 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8A8_UNORM },
1435 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8A8_UNORM },
1436 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8R8G8B8_UNORM },
1437 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8A8_UNORM },
1438 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
1439 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
1440 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
1441 { 0, 0, 0 }
1442 };
1443
1444 static const struct exact_format_mapping rgbx8888_tbl[] =
1445 {
1446 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8R8G8B8_UNORM },
1447 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8X8_UNORM },
1448 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
1449 /* No Mesa formats for these Gallium formats:
1450 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8B8G8R8_UNORM },
1451 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_X8B8G8R8_UNORM },
1452 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8X8_UNORM },
1453 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8X8_UNORM },
1454 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
1455 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
1456 */
1457 { 0, 0, 0 }
1458 };
1459
1460 static const struct exact_format_mapping rgba1010102_tbl[] =
1461 {
1462 { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
1463 /* No Mesa formats for these Gallium formats:
1464 { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
1465 { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
1466 { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
1467 */
1468 { 0, 0, 0 }
1469 };
1470
1471 /**
1472 * If there is an exact pipe_format match for {internalFormat, format, type}
1473 * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
1474 */
1475 static enum pipe_format
1476 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
1477 {
1478 uint i;
1479 const struct exact_format_mapping* tbl;
1480
1481 if (format == GL_NONE || type == GL_NONE)
1482 return PIPE_FORMAT_NONE;
1483
1484 switch (internalFormat) {
1485 case 4:
1486 case GL_RGBA:
1487 case GL_RGBA8:
1488 tbl = rgba8888_tbl;
1489 break;
1490 case 3:
1491 case GL_RGB:
1492 case GL_RGB8:
1493 tbl = rgbx8888_tbl;
1494 break;
1495 case GL_RGB10_A2:
1496 tbl = rgba1010102_tbl;
1497 break;
1498 default:
1499 return PIPE_FORMAT_NONE;
1500 }
1501
1502 for (i = 0; tbl[i].format; i++)
1503 if (tbl[i].format == format && tbl[i].type == type)
1504 return tbl[i].pformat;
1505
1506 return PIPE_FORMAT_NONE;
1507 }
1508
1509 /**
1510 * Given an OpenGL internalFormat value for a texture or surface, return
1511 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
1512 * This is called during glTexImage2D, for example.
1513 *
1514 * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
1515 * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
1516 * we want render-to-texture ability.
1517 *
1518 * \param internalFormat the user value passed to glTexImage2D
1519 * \param target one of PIPE_TEXTURE_x
1520 * \param bindings bitmask of PIPE_BIND_x flags.
1521 */
1522 enum pipe_format
1523 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
1524 GLenum format, GLenum type,
1525 enum pipe_texture_target target, unsigned sample_count,
1526 unsigned bindings)
1527 {
1528 GET_CURRENT_CONTEXT(ctx); /* XXX this should be a function parameter */
1529 int i, j;
1530 enum pipe_format pf;
1531
1532 /* can't render to compressed formats at this time */
1533 if (_mesa_is_compressed_format(ctx, internalFormat)
1534 && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
1535 return PIPE_FORMAT_NONE;
1536 }
1537
1538 /* search for exact matches */
1539 pf = find_exact_format(internalFormat, format, type);
1540 if (pf != PIPE_FORMAT_NONE &&
1541 screen->is_format_supported(screen, pf,
1542 target, sample_count, bindings))
1543 return pf;
1544
1545 /* search table for internalFormat */
1546 for (i = 0; i < Elements(format_map); i++) {
1547 const struct format_mapping *mapping = &format_map[i];
1548 for (j = 0; mapping->glFormats[j]; j++) {
1549 if (mapping->glFormats[j] == internalFormat) {
1550 /* Found the desired internal format. Find first pipe format
1551 * which is supported by the driver.
1552 */
1553 return find_supported_format(screen, mapping->pipeFormats,
1554 target, sample_count, bindings);
1555 }
1556 }
1557 }
1558
1559 _mesa_problem(NULL, "unhandled format!\n");
1560 return PIPE_FORMAT_NONE;
1561 }
1562
1563
1564 /**
1565 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
1566 */
1567 enum pipe_format
1568 st_choose_renderbuffer_format(struct pipe_screen *screen,
1569 GLenum internalFormat, unsigned sample_count)
1570 {
1571 uint usage;
1572 if (_mesa_is_depth_or_stencil_format(internalFormat))
1573 usage = PIPE_BIND_DEPTH_STENCIL;
1574 else
1575 usage = PIPE_BIND_RENDER_TARGET;
1576 return st_choose_format(screen, internalFormat, GL_NONE, GL_NONE, PIPE_TEXTURE_2D,
1577 sample_count, usage);
1578 }
1579
1580
1581 gl_format
1582 st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
1583 GLenum format, GLenum type, GLboolean renderable)
1584 {
1585 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
1586 enum pipe_format pFormat;
1587 uint bindings;
1588
1589 (void) format;
1590 (void) type;
1591
1592 /* GL textures may wind up being render targets, but we don't know
1593 * that in advance. Specify potential render target flags now.
1594 */
1595 bindings = PIPE_BIND_SAMPLER_VIEW;
1596 if (renderable) {
1597 if (_mesa_is_depth_or_stencil_format(internalFormat))
1598 bindings |= PIPE_BIND_DEPTH_STENCIL;
1599 else
1600 bindings |= PIPE_BIND_RENDER_TARGET;
1601 }
1602
1603 pFormat = st_choose_format(screen, internalFormat, format, type,
1604 PIPE_TEXTURE_2D, 0, bindings);
1605
1606 if (pFormat == PIPE_FORMAT_NONE) {
1607 /* try choosing format again, this time without render target bindings */
1608 pFormat = st_choose_format(screen, internalFormat, format, type,
1609 PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
1610 }
1611
1612 if (pFormat == PIPE_FORMAT_NONE) {
1613 /* no luck at all */
1614 return MESA_FORMAT_NONE;
1615 }
1616
1617 return st_pipe_format_to_mesa_format(pFormat);
1618 }
1619
1620
1621 /**
1622 * Called via ctx->Driver.ChooseTextureFormat().
1623 */
1624 gl_format
1625 st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
1626 GLint internalFormat,
1627 GLenum format, GLenum type)
1628 {
1629 boolean want_renderable =
1630 internalFormat == 3 || internalFormat == 4 ||
1631 internalFormat == GL_RGB || internalFormat == GL_RGBA ||
1632 internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
1633 internalFormat == GL_BGRA;
1634
1635 if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
1636 /* We don't do compression for these texture targets because of
1637 * difficulty with sub-texture updates on non-block boundaries, etc.
1638 * So change the internal format request to an uncompressed format.
1639 */
1640 internalFormat =
1641 _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
1642 }
1643
1644 return st_ChooseTextureFormat_renderable(ctx, internalFormat,
1645 format, type, want_renderable);
1646 }
1647
1648
1649 GLboolean
1650 st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2)
1651 {
1652 if (format1 == format2)
1653 return GL_TRUE;
1654
1655 if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM &&
1656 format2 == PIPE_FORMAT_B8G8R8X8_UNORM)
1657 return GL_TRUE;
1658
1659 if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM &&
1660 format2 == PIPE_FORMAT_B8G8R8A8_UNORM)
1661 return GL_TRUE;
1662
1663 if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM &&
1664 format2 == PIPE_FORMAT_X8B8G8R8_UNORM)
1665 return GL_TRUE;
1666
1667 if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM &&
1668 format2 == PIPE_FORMAT_A8B8G8R8_UNORM)
1669 return GL_TRUE;
1670
1671 if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM &&
1672 format2 == PIPE_FORMAT_X8R8G8B8_UNORM)
1673 return GL_TRUE;
1674
1675 if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM &&
1676 format2 == PIPE_FORMAT_A8R8G8B8_UNORM)
1677 return GL_TRUE;
1678
1679 return GL_FALSE;
1680 }
1681
1682
1683
1684 /**
1685 * This is used for translating texture border color and the clear
1686 * color. For example, the clear color is interpreted according to
1687 * the renderbuffer's base format. For example, if clearing a
1688 * GL_LUMINANCE buffer, we'll return colorOut[0] = colorOut[1] =
1689 * colorOut[2] = colorIn[0].
1690 * Similarly for texture border colors.
1691 */
1692 void
1693 st_translate_color(const GLfloat colorIn[4], GLenum baseFormat,
1694 GLfloat colorOut[4])
1695 {
1696 switch (baseFormat) {
1697 case GL_RED:
1698 colorOut[0] = colorIn[0];
1699 colorOut[1] = 0.0F;
1700 colorOut[2] = 0.0F;
1701 colorOut[3] = 1.0F;
1702 break;
1703 case GL_RG:
1704 colorOut[0] = colorIn[0];
1705 colorOut[1] = colorIn[1];
1706 colorOut[2] = 0.0F;
1707 colorOut[3] = 1.0F;
1708 break;
1709 case GL_RGB:
1710 colorOut[0] = colorIn[0];
1711 colorOut[1] = colorIn[1];
1712 colorOut[2] = colorIn[2];
1713 colorOut[3] = 1.0F;
1714 break;
1715 case GL_ALPHA:
1716 colorOut[0] = colorOut[1] = colorOut[2] = 0.0;
1717 colorOut[3] = colorIn[3];
1718 break;
1719 case GL_LUMINANCE:
1720 colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
1721 colorOut[3] = 1.0;
1722 break;
1723 case GL_LUMINANCE_ALPHA:
1724 colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
1725 colorOut[3] = colorIn[3];
1726 break;
1727 case GL_INTENSITY:
1728 colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0];
1729 break;
1730 default:
1731 COPY_4V(colorOut, colorIn);
1732 }
1733 }