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mesa/st: add BPTC formats, expose ARB_texture_compression_bptc
[mesa.git] / src / mesa / state_tracker / st_format.c
1 /**************************************************************************
2 *
3 * Copyright 2007 VMware, Inc.
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 VMWARE 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/texgetimage.h"
39 #include "main/teximage.h"
40 #include "main/texstore.h"
41 #include "main/image.h"
42 #include "main/macros.h"
43
44 #include "pipe/p_context.h"
45 #include "pipe/p_defines.h"
46 #include "pipe/p_screen.h"
47 #include "util/u_format.h"
48 #include "st_cb_texture.h"
49 #include "st_context.h"
50 #include "st_format.h"
51
52
53 /**
54 * Translate Mesa format to Gallium format.
55 */
56 enum pipe_format
57 st_mesa_format_to_pipe_format(struct st_context *st, mesa_format mesaFormat)
58 {
59 switch (mesaFormat) {
60 case MESA_FORMAT_A8B8G8R8_UNORM:
61 return PIPE_FORMAT_ABGR8888_UNORM;
62 case MESA_FORMAT_R8G8B8A8_UNORM:
63 return PIPE_FORMAT_RGBA8888_UNORM;
64 case MESA_FORMAT_B8G8R8A8_UNORM:
65 return PIPE_FORMAT_BGRA8888_UNORM;
66 case MESA_FORMAT_A8R8G8B8_UNORM:
67 return PIPE_FORMAT_ARGB8888_UNORM;
68 case MESA_FORMAT_X8B8G8R8_UNORM:
69 return PIPE_FORMAT_XBGR8888_UNORM;
70 case MESA_FORMAT_R8G8B8X8_UNORM:
71 return PIPE_FORMAT_RGBX8888_UNORM;
72 case MESA_FORMAT_B8G8R8X8_UNORM:
73 return PIPE_FORMAT_BGRX8888_UNORM;
74 case MESA_FORMAT_X8R8G8B8_UNORM:
75 return PIPE_FORMAT_XRGB8888_UNORM;
76 case MESA_FORMAT_B5G5R5A1_UNORM:
77 return PIPE_FORMAT_B5G5R5A1_UNORM;
78 case MESA_FORMAT_B4G4R4A4_UNORM:
79 return PIPE_FORMAT_B4G4R4A4_UNORM;
80 case MESA_FORMAT_B5G6R5_UNORM:
81 return PIPE_FORMAT_B5G6R5_UNORM;
82 case MESA_FORMAT_B2G3R3_UNORM:
83 return PIPE_FORMAT_B2G3R3_UNORM;
84 case MESA_FORMAT_B10G10R10A2_UNORM:
85 return PIPE_FORMAT_B10G10R10A2_UNORM;
86 case MESA_FORMAT_R10G10B10A2_UNORM:
87 return PIPE_FORMAT_R10G10B10A2_UNORM;
88 case MESA_FORMAT_L4A4_UNORM:
89 return PIPE_FORMAT_L4A4_UNORM;
90 case MESA_FORMAT_L8A8_UNORM:
91 return PIPE_FORMAT_L8A8_UNORM;
92 case MESA_FORMAT_L16A16_UNORM:
93 return PIPE_FORMAT_L16A16_UNORM;
94 case MESA_FORMAT_A_UNORM8:
95 return PIPE_FORMAT_A8_UNORM;
96 case MESA_FORMAT_A_UNORM16:
97 return PIPE_FORMAT_A16_UNORM;
98 case MESA_FORMAT_L_UNORM8:
99 return PIPE_FORMAT_L8_UNORM;
100 case MESA_FORMAT_L_UNORM16:
101 return PIPE_FORMAT_L16_UNORM;
102 case MESA_FORMAT_I_UNORM8:
103 return PIPE_FORMAT_I8_UNORM;
104 case MESA_FORMAT_I_UNORM16:
105 return PIPE_FORMAT_I16_UNORM;
106 case MESA_FORMAT_Z_UNORM16:
107 return PIPE_FORMAT_Z16_UNORM;
108 case MESA_FORMAT_Z_UNORM32:
109 return PIPE_FORMAT_Z32_UNORM;
110 case MESA_FORMAT_S8_UINT_Z24_UNORM:
111 return PIPE_FORMAT_S8_UINT_Z24_UNORM;
112 case MESA_FORMAT_Z24_UNORM_S8_UINT:
113 return PIPE_FORMAT_Z24_UNORM_S8_UINT;
114 case MESA_FORMAT_X8_UINT_Z24_UNORM:
115 return PIPE_FORMAT_X8Z24_UNORM;
116 case MESA_FORMAT_Z24_UNORM_X8_UINT:
117 return PIPE_FORMAT_Z24X8_UNORM;
118 case MESA_FORMAT_S_UINT8:
119 return PIPE_FORMAT_S8_UINT;
120 case MESA_FORMAT_Z_FLOAT32:
121 return PIPE_FORMAT_Z32_FLOAT;
122 case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
123 return PIPE_FORMAT_Z32_FLOAT_S8X24_UINT;
124 case MESA_FORMAT_YCBCR:
125 return PIPE_FORMAT_UYVY;
126 case MESA_FORMAT_YCBCR_REV:
127 return PIPE_FORMAT_YUYV;
128 case MESA_FORMAT_RGB_DXT1:
129 return PIPE_FORMAT_DXT1_RGB;
130 case MESA_FORMAT_RGBA_DXT1:
131 return PIPE_FORMAT_DXT1_RGBA;
132 case MESA_FORMAT_RGBA_DXT3:
133 return PIPE_FORMAT_DXT3_RGBA;
134 case MESA_FORMAT_RGBA_DXT5:
135 return PIPE_FORMAT_DXT5_RGBA;
136 case MESA_FORMAT_SRGB_DXT1:
137 return PIPE_FORMAT_DXT1_SRGB;
138 case MESA_FORMAT_SRGBA_DXT1:
139 return PIPE_FORMAT_DXT1_SRGBA;
140 case MESA_FORMAT_SRGBA_DXT3:
141 return PIPE_FORMAT_DXT3_SRGBA;
142 case MESA_FORMAT_SRGBA_DXT5:
143 return PIPE_FORMAT_DXT5_SRGBA;
144 case MESA_FORMAT_L8A8_SRGB:
145 return PIPE_FORMAT_L8A8_SRGB;
146 case MESA_FORMAT_L_SRGB8:
147 return PIPE_FORMAT_L8_SRGB;
148 case MESA_FORMAT_BGR_SRGB8:
149 return PIPE_FORMAT_R8G8B8_SRGB;
150 case MESA_FORMAT_A8B8G8R8_SRGB:
151 return PIPE_FORMAT_A8B8G8R8_SRGB;
152 case MESA_FORMAT_B8G8R8A8_SRGB:
153 return PIPE_FORMAT_B8G8R8A8_SRGB;
154 case MESA_FORMAT_R8G8B8A8_SRGB:
155 return PIPE_FORMAT_R8G8B8A8_SRGB;
156 case MESA_FORMAT_RGBA_FLOAT32:
157 return PIPE_FORMAT_R32G32B32A32_FLOAT;
158 case MESA_FORMAT_RGBA_FLOAT16:
159 return PIPE_FORMAT_R16G16B16A16_FLOAT;
160 case MESA_FORMAT_RGB_FLOAT32:
161 return PIPE_FORMAT_R32G32B32_FLOAT;
162 case MESA_FORMAT_RGB_FLOAT16:
163 return PIPE_FORMAT_R16G16B16_FLOAT;
164 case MESA_FORMAT_LA_FLOAT32:
165 return PIPE_FORMAT_L32A32_FLOAT;
166 case MESA_FORMAT_LA_FLOAT16:
167 return PIPE_FORMAT_L16A16_FLOAT;
168 case MESA_FORMAT_L_FLOAT32:
169 return PIPE_FORMAT_L32_FLOAT;
170 case MESA_FORMAT_L_FLOAT16:
171 return PIPE_FORMAT_L16_FLOAT;
172 case MESA_FORMAT_A_FLOAT32:
173 return PIPE_FORMAT_A32_FLOAT;
174 case MESA_FORMAT_A_FLOAT16:
175 return PIPE_FORMAT_A16_FLOAT;
176 case MESA_FORMAT_I_FLOAT32:
177 return PIPE_FORMAT_I32_FLOAT;
178 case MESA_FORMAT_I_FLOAT16:
179 return PIPE_FORMAT_I16_FLOAT;
180 case MESA_FORMAT_R_FLOAT32:
181 return PIPE_FORMAT_R32_FLOAT;
182 case MESA_FORMAT_R_FLOAT16:
183 return PIPE_FORMAT_R16_FLOAT;
184 case MESA_FORMAT_RG_FLOAT32:
185 return PIPE_FORMAT_R32G32_FLOAT;
186 case MESA_FORMAT_RG_FLOAT16:
187 return PIPE_FORMAT_R16G16_FLOAT;
188
189 case MESA_FORMAT_R_UNORM8:
190 return PIPE_FORMAT_R8_UNORM;
191 case MESA_FORMAT_R_UNORM16:
192 return PIPE_FORMAT_R16_UNORM;
193 case MESA_FORMAT_R8G8_UNORM:
194 return PIPE_FORMAT_R8G8_UNORM;
195 case MESA_FORMAT_R16G16_UNORM:
196 return PIPE_FORMAT_R16G16_UNORM;
197 case MESA_FORMAT_RGBA_UNORM16:
198 return PIPE_FORMAT_R16G16B16A16_UNORM;
199
200 /* signed int formats */
201 case MESA_FORMAT_A_UINT8:
202 return PIPE_FORMAT_A8_UINT;
203 case MESA_FORMAT_A_UINT16:
204 return PIPE_FORMAT_A16_UINT;
205 case MESA_FORMAT_A_UINT32:
206 return PIPE_FORMAT_A32_UINT;
207
208 case MESA_FORMAT_A_SINT8:
209 return PIPE_FORMAT_A8_SINT;
210 case MESA_FORMAT_A_SINT16:
211 return PIPE_FORMAT_A16_SINT;
212 case MESA_FORMAT_A_SINT32:
213 return PIPE_FORMAT_A32_SINT;
214
215 case MESA_FORMAT_I_UINT8:
216 return PIPE_FORMAT_I8_UINT;
217 case MESA_FORMAT_I_UINT16:
218 return PIPE_FORMAT_I16_UINT;
219 case MESA_FORMAT_I_UINT32:
220 return PIPE_FORMAT_I32_UINT;
221
222 case MESA_FORMAT_I_SINT8:
223 return PIPE_FORMAT_I8_SINT;
224 case MESA_FORMAT_I_SINT16:
225 return PIPE_FORMAT_I16_SINT;
226 case MESA_FORMAT_I_SINT32:
227 return PIPE_FORMAT_I32_SINT;
228
229 case MESA_FORMAT_L_UINT8:
230 return PIPE_FORMAT_L8_UINT;
231 case MESA_FORMAT_L_UINT16:
232 return PIPE_FORMAT_L16_UINT;
233 case MESA_FORMAT_L_UINT32:
234 return PIPE_FORMAT_L32_UINT;
235
236 case MESA_FORMAT_L_SINT8:
237 return PIPE_FORMAT_L8_SINT;
238 case MESA_FORMAT_L_SINT16:
239 return PIPE_FORMAT_L16_SINT;
240 case MESA_FORMAT_L_SINT32:
241 return PIPE_FORMAT_L32_SINT;
242
243 case MESA_FORMAT_LA_UINT8:
244 return PIPE_FORMAT_L8A8_UINT;
245 case MESA_FORMAT_LA_UINT16:
246 return PIPE_FORMAT_L16A16_UINT;
247 case MESA_FORMAT_LA_UINT32:
248 return PIPE_FORMAT_L32A32_UINT;
249
250 case MESA_FORMAT_LA_SINT8:
251 return PIPE_FORMAT_L8A8_SINT;
252 case MESA_FORMAT_LA_SINT16:
253 return PIPE_FORMAT_L16A16_SINT;
254 case MESA_FORMAT_LA_SINT32:
255 return PIPE_FORMAT_L32A32_SINT;
256
257 case MESA_FORMAT_R_SINT8:
258 return PIPE_FORMAT_R8_SINT;
259 case MESA_FORMAT_RG_SINT8:
260 return PIPE_FORMAT_R8G8_SINT;
261 case MESA_FORMAT_RGB_SINT8:
262 return PIPE_FORMAT_R8G8B8_SINT;
263 case MESA_FORMAT_RGBA_SINT8:
264 return PIPE_FORMAT_R8G8B8A8_SINT;
265 case MESA_FORMAT_R_SINT16:
266 return PIPE_FORMAT_R16_SINT;
267 case MESA_FORMAT_RG_SINT16:
268 return PIPE_FORMAT_R16G16_SINT;
269 case MESA_FORMAT_RGB_SINT16:
270 return PIPE_FORMAT_R16G16B16_SINT;
271 case MESA_FORMAT_RGBA_SINT16:
272 return PIPE_FORMAT_R16G16B16A16_SINT;
273 case MESA_FORMAT_R_SINT32:
274 return PIPE_FORMAT_R32_SINT;
275 case MESA_FORMAT_RG_SINT32:
276 return PIPE_FORMAT_R32G32_SINT;
277 case MESA_FORMAT_RGB_SINT32:
278 return PIPE_FORMAT_R32G32B32_SINT;
279 case MESA_FORMAT_RGBA_SINT32:
280 return PIPE_FORMAT_R32G32B32A32_SINT;
281
282 /* unsigned int formats */
283 case MESA_FORMAT_R_UINT8:
284 return PIPE_FORMAT_R8_UINT;
285 case MESA_FORMAT_RG_UINT8:
286 return PIPE_FORMAT_R8G8_UINT;
287 case MESA_FORMAT_RGB_UINT8:
288 return PIPE_FORMAT_R8G8B8_UINT;
289 case MESA_FORMAT_RGBA_UINT8:
290 return PIPE_FORMAT_R8G8B8A8_UINT;
291 case MESA_FORMAT_R_UINT16:
292 return PIPE_FORMAT_R16_UINT;
293 case MESA_FORMAT_RG_UINT16:
294 return PIPE_FORMAT_R16G16_UINT;
295 case MESA_FORMAT_RGB_UINT16:
296 return PIPE_FORMAT_R16G16B16_UINT;
297 case MESA_FORMAT_RGBA_UINT16:
298 return PIPE_FORMAT_R16G16B16A16_UINT;
299 case MESA_FORMAT_R_UINT32:
300 return PIPE_FORMAT_R32_UINT;
301 case MESA_FORMAT_RG_UINT32:
302 return PIPE_FORMAT_R32G32_UINT;
303 case MESA_FORMAT_RGB_UINT32:
304 return PIPE_FORMAT_R32G32B32_UINT;
305 case MESA_FORMAT_RGBA_UINT32:
306 return PIPE_FORMAT_R32G32B32A32_UINT;
307
308 case MESA_FORMAT_R_RGTC1_UNORM:
309 return PIPE_FORMAT_RGTC1_UNORM;
310 case MESA_FORMAT_R_RGTC1_SNORM:
311 return PIPE_FORMAT_RGTC1_SNORM;
312 case MESA_FORMAT_RG_RGTC2_UNORM:
313 return PIPE_FORMAT_RGTC2_UNORM;
314 case MESA_FORMAT_RG_RGTC2_SNORM:
315 return PIPE_FORMAT_RGTC2_SNORM;
316
317 case MESA_FORMAT_L_LATC1_UNORM:
318 return PIPE_FORMAT_LATC1_UNORM;
319 case MESA_FORMAT_L_LATC1_SNORM:
320 return PIPE_FORMAT_LATC1_SNORM;
321 case MESA_FORMAT_LA_LATC2_UNORM:
322 return PIPE_FORMAT_LATC2_UNORM;
323 case MESA_FORMAT_LA_LATC2_SNORM:
324 return PIPE_FORMAT_LATC2_SNORM;
325
326 /* The destination RGBA format mustn't be changed, because it's also
327 * a destination format of the unpack/decompression function. */
328 case MESA_FORMAT_ETC1_RGB8:
329 return st->has_etc1 ? PIPE_FORMAT_ETC1_RGB8 : PIPE_FORMAT_R8G8B8A8_UNORM;
330
331 case MESA_FORMAT_BPTC_RGBA_UNORM:
332 return PIPE_FORMAT_BPTC_RGBA_UNORM;
333 case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM:
334 return PIPE_FORMAT_BPTC_SRGBA;
335 case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT:
336 return PIPE_FORMAT_BPTC_RGB_FLOAT;
337 case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT:
338 return PIPE_FORMAT_BPTC_RGB_UFLOAT;
339
340 /* signed normalized formats */
341 case MESA_FORMAT_R_SNORM8:
342 return PIPE_FORMAT_R8_SNORM;
343 case MESA_FORMAT_R8G8_SNORM:
344 return PIPE_FORMAT_R8G8_SNORM;
345 case MESA_FORMAT_R8G8B8A8_SNORM:
346 return PIPE_FORMAT_R8G8B8A8_SNORM;
347
348 case MESA_FORMAT_A_SNORM8:
349 return PIPE_FORMAT_A8_SNORM;
350 case MESA_FORMAT_L_SNORM8:
351 return PIPE_FORMAT_L8_SNORM;
352 case MESA_FORMAT_L8A8_SNORM:
353 return PIPE_FORMAT_L8A8_SNORM;
354 case MESA_FORMAT_I_SNORM8:
355 return PIPE_FORMAT_I8_SNORM;
356
357 case MESA_FORMAT_R_SNORM16:
358 return PIPE_FORMAT_R16_SNORM;
359 case MESA_FORMAT_R16G16_SNORM:
360 return PIPE_FORMAT_R16G16_SNORM;
361 case MESA_FORMAT_RGBA_SNORM16:
362 return PIPE_FORMAT_R16G16B16A16_SNORM;
363
364 case MESA_FORMAT_A_SNORM16:
365 return PIPE_FORMAT_A16_SNORM;
366 case MESA_FORMAT_L_SNORM16:
367 return PIPE_FORMAT_L16_SNORM;
368 case MESA_FORMAT_LA_SNORM16:
369 return PIPE_FORMAT_L16A16_SNORM;
370 case MESA_FORMAT_I_SNORM16:
371 return PIPE_FORMAT_I16_SNORM;
372
373 case MESA_FORMAT_R9G9B9E5_FLOAT:
374 return PIPE_FORMAT_R9G9B9E5_FLOAT;
375 case MESA_FORMAT_R11G11B10_FLOAT:
376 return PIPE_FORMAT_R11G11B10_FLOAT;
377 case MESA_FORMAT_B10G10R10A2_UINT:
378 return PIPE_FORMAT_B10G10R10A2_UINT;
379 case MESA_FORMAT_R10G10B10A2_UINT:
380 return PIPE_FORMAT_R10G10B10A2_UINT;
381
382 case MESA_FORMAT_B4G4R4X4_UNORM:
383 return PIPE_FORMAT_B4G4R4X4_UNORM;
384 case MESA_FORMAT_B5G5R5X1_UNORM:
385 return PIPE_FORMAT_B5G5R5X1_UNORM;
386 case MESA_FORMAT_R8G8B8X8_SNORM:
387 return PIPE_FORMAT_R8G8B8X8_SNORM;
388 case MESA_FORMAT_R8G8B8X8_SRGB:
389 return PIPE_FORMAT_R8G8B8X8_SRGB;
390 case MESA_FORMAT_RGBX_UINT8:
391 return PIPE_FORMAT_R8G8B8X8_UINT;
392 case MESA_FORMAT_RGBX_SINT8:
393 return PIPE_FORMAT_R8G8B8X8_SINT;
394 case MESA_FORMAT_B10G10R10X2_UNORM:
395 return PIPE_FORMAT_B10G10R10X2_UNORM;
396 case MESA_FORMAT_RGBX_UNORM16:
397 return PIPE_FORMAT_R16G16B16X16_UNORM;
398 case MESA_FORMAT_RGBX_SNORM16:
399 return PIPE_FORMAT_R16G16B16X16_SNORM;
400 case MESA_FORMAT_RGBX_FLOAT16:
401 return PIPE_FORMAT_R16G16B16X16_FLOAT;
402 case MESA_FORMAT_RGBX_UINT16:
403 return PIPE_FORMAT_R16G16B16X16_UINT;
404 case MESA_FORMAT_RGBX_SINT16:
405 return PIPE_FORMAT_R16G16B16X16_SINT;
406 case MESA_FORMAT_RGBX_FLOAT32:
407 return PIPE_FORMAT_R32G32B32X32_FLOAT;
408 case MESA_FORMAT_RGBX_UINT32:
409 return PIPE_FORMAT_R32G32B32X32_UINT;
410 case MESA_FORMAT_RGBX_SINT32:
411 return PIPE_FORMAT_R32G32B32X32_SINT;
412
413 case MESA_FORMAT_B8G8R8X8_SRGB:
414 return PIPE_FORMAT_B8G8R8X8_SRGB;
415
416 /* ETC2 formats are emulated as uncompressed ones.
417 * The destination formats mustn't be changed, because they are also
418 * destination formats of the unpack/decompression function. */
419 case MESA_FORMAT_ETC2_RGB8:
420 case MESA_FORMAT_ETC2_RGBA8_EAC:
421 case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
422 return PIPE_FORMAT_R8G8B8A8_UNORM;
423 case MESA_FORMAT_ETC2_SRGB8:
424 case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
425 case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
426 return PIPE_FORMAT_B8G8R8A8_SRGB;
427 case MESA_FORMAT_ETC2_R11_EAC:
428 return PIPE_FORMAT_R16_UNORM;
429 case MESA_FORMAT_ETC2_RG11_EAC:
430 return PIPE_FORMAT_R16G16_UNORM;
431 case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
432 return PIPE_FORMAT_R16_SNORM;
433 case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
434 return PIPE_FORMAT_R16G16_SNORM;
435
436 default:
437 return PIPE_FORMAT_NONE;
438 }
439 }
440
441
442 /**
443 * Translate Gallium format to Mesa format.
444 */
445 mesa_format
446 st_pipe_format_to_mesa_format(enum pipe_format format)
447 {
448 switch (format) {
449 case PIPE_FORMAT_ABGR8888_UNORM:
450 return MESA_FORMAT_A8B8G8R8_UNORM;
451 case PIPE_FORMAT_RGBA8888_UNORM:
452 return MESA_FORMAT_R8G8B8A8_UNORM;
453 case PIPE_FORMAT_BGRA8888_UNORM:
454 return MESA_FORMAT_B8G8R8A8_UNORM;
455 case PIPE_FORMAT_ARGB8888_UNORM:
456 return MESA_FORMAT_A8R8G8B8_UNORM;
457 case PIPE_FORMAT_XBGR8888_UNORM:
458 return MESA_FORMAT_X8B8G8R8_UNORM;
459 case PIPE_FORMAT_RGBX8888_UNORM:
460 return MESA_FORMAT_R8G8B8X8_UNORM;
461 case PIPE_FORMAT_BGRX8888_UNORM:
462 return MESA_FORMAT_B8G8R8X8_UNORM;
463 case PIPE_FORMAT_XRGB8888_UNORM:
464 return MESA_FORMAT_X8R8G8B8_UNORM;
465 case PIPE_FORMAT_B5G5R5A1_UNORM:
466 return MESA_FORMAT_B5G5R5A1_UNORM;
467 case PIPE_FORMAT_B4G4R4A4_UNORM:
468 return MESA_FORMAT_B4G4R4A4_UNORM;
469 case PIPE_FORMAT_B5G6R5_UNORM:
470 return MESA_FORMAT_B5G6R5_UNORM;
471 case PIPE_FORMAT_B2G3R3_UNORM:
472 return MESA_FORMAT_B2G3R3_UNORM;
473 case PIPE_FORMAT_B10G10R10A2_UNORM:
474 return MESA_FORMAT_B10G10R10A2_UNORM;
475 case PIPE_FORMAT_R10G10B10A2_UNORM:
476 return MESA_FORMAT_R10G10B10A2_UNORM;
477 case PIPE_FORMAT_L4A4_UNORM:
478 return MESA_FORMAT_L4A4_UNORM;
479 case PIPE_FORMAT_L8A8_UNORM:
480 return MESA_FORMAT_L8A8_UNORM;
481 case PIPE_FORMAT_L16A16_UNORM:
482 return MESA_FORMAT_L16A16_UNORM;
483 case PIPE_FORMAT_A8_UNORM:
484 return MESA_FORMAT_A_UNORM8;
485 case PIPE_FORMAT_A16_UNORM:
486 return MESA_FORMAT_A_UNORM16;
487 case PIPE_FORMAT_L8_UNORM:
488 return MESA_FORMAT_L_UNORM8;
489 case PIPE_FORMAT_L16_UNORM:
490 return MESA_FORMAT_L_UNORM16;
491 case PIPE_FORMAT_I8_UNORM:
492 return MESA_FORMAT_I_UNORM8;
493 case PIPE_FORMAT_I16_UNORM:
494 return MESA_FORMAT_I_UNORM16;
495 case PIPE_FORMAT_S8_UINT:
496 return MESA_FORMAT_S_UINT8;
497
498 case PIPE_FORMAT_R16G16B16A16_UNORM:
499 return MESA_FORMAT_RGBA_UNORM16;
500
501 case PIPE_FORMAT_Z16_UNORM:
502 return MESA_FORMAT_Z_UNORM16;
503 case PIPE_FORMAT_Z32_UNORM:
504 return MESA_FORMAT_Z_UNORM32;
505 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
506 return MESA_FORMAT_S8_UINT_Z24_UNORM;
507 case PIPE_FORMAT_X8Z24_UNORM:
508 return MESA_FORMAT_X8_UINT_Z24_UNORM;
509 case PIPE_FORMAT_Z24X8_UNORM:
510 return MESA_FORMAT_Z24_UNORM_X8_UINT;
511 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
512 return MESA_FORMAT_Z24_UNORM_S8_UINT;
513 case PIPE_FORMAT_Z32_FLOAT:
514 return MESA_FORMAT_Z_FLOAT32;
515 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
516 return MESA_FORMAT_Z32_FLOAT_S8X24_UINT;
517
518 case PIPE_FORMAT_UYVY:
519 return MESA_FORMAT_YCBCR;
520 case PIPE_FORMAT_YUYV:
521 return MESA_FORMAT_YCBCR_REV;
522
523 case PIPE_FORMAT_DXT1_RGB:
524 return MESA_FORMAT_RGB_DXT1;
525 case PIPE_FORMAT_DXT1_RGBA:
526 return MESA_FORMAT_RGBA_DXT1;
527 case PIPE_FORMAT_DXT3_RGBA:
528 return MESA_FORMAT_RGBA_DXT3;
529 case PIPE_FORMAT_DXT5_RGBA:
530 return MESA_FORMAT_RGBA_DXT5;
531 case PIPE_FORMAT_DXT1_SRGB:
532 return MESA_FORMAT_SRGB_DXT1;
533 case PIPE_FORMAT_DXT1_SRGBA:
534 return MESA_FORMAT_SRGBA_DXT1;
535 case PIPE_FORMAT_DXT3_SRGBA:
536 return MESA_FORMAT_SRGBA_DXT3;
537 case PIPE_FORMAT_DXT5_SRGBA:
538 return MESA_FORMAT_SRGBA_DXT5;
539 case PIPE_FORMAT_L8A8_SRGB:
540 return MESA_FORMAT_L8A8_SRGB;
541 case PIPE_FORMAT_L8_SRGB:
542 return MESA_FORMAT_L_SRGB8;
543 case PIPE_FORMAT_R8G8B8_SRGB:
544 return MESA_FORMAT_BGR_SRGB8;
545 case PIPE_FORMAT_A8B8G8R8_SRGB:
546 return MESA_FORMAT_A8B8G8R8_SRGB;
547 case PIPE_FORMAT_B8G8R8A8_SRGB:
548 return MESA_FORMAT_B8G8R8A8_SRGB;
549 case PIPE_FORMAT_R32G32B32A32_FLOAT:
550 return MESA_FORMAT_RGBA_FLOAT32;
551 case PIPE_FORMAT_R16G16B16A16_FLOAT:
552 return MESA_FORMAT_RGBA_FLOAT16;
553 case PIPE_FORMAT_R32G32B32_FLOAT:
554 return MESA_FORMAT_RGB_FLOAT32;
555 case PIPE_FORMAT_R16G16B16_FLOAT:
556 return MESA_FORMAT_RGB_FLOAT16;
557 case PIPE_FORMAT_L32A32_FLOAT:
558 return MESA_FORMAT_LA_FLOAT32;
559 case PIPE_FORMAT_L16A16_FLOAT:
560 return MESA_FORMAT_LA_FLOAT16;
561 case PIPE_FORMAT_L32_FLOAT:
562 return MESA_FORMAT_L_FLOAT32;
563 case PIPE_FORMAT_L16_FLOAT:
564 return MESA_FORMAT_L_FLOAT16;
565 case PIPE_FORMAT_A32_FLOAT:
566 return MESA_FORMAT_A_FLOAT32;
567 case PIPE_FORMAT_A16_FLOAT:
568 return MESA_FORMAT_A_FLOAT16;
569 case PIPE_FORMAT_I32_FLOAT:
570 return MESA_FORMAT_I_FLOAT32;
571 case PIPE_FORMAT_I16_FLOAT:
572 return MESA_FORMAT_I_FLOAT16;
573 case PIPE_FORMAT_R32_FLOAT:
574 return MESA_FORMAT_R_FLOAT32;
575 case PIPE_FORMAT_R16_FLOAT:
576 return MESA_FORMAT_R_FLOAT16;
577 case PIPE_FORMAT_R32G32_FLOAT:
578 return MESA_FORMAT_RG_FLOAT32;
579 case PIPE_FORMAT_R16G16_FLOAT:
580 return MESA_FORMAT_RG_FLOAT16;
581
582 case PIPE_FORMAT_R8_UNORM:
583 return MESA_FORMAT_R_UNORM8;
584 case PIPE_FORMAT_R16_UNORM:
585 return MESA_FORMAT_R_UNORM16;
586 case PIPE_FORMAT_R8G8_UNORM:
587 return MESA_FORMAT_R8G8_UNORM;
588 case PIPE_FORMAT_R16G16_UNORM:
589 return MESA_FORMAT_R16G16_UNORM;
590
591 case PIPE_FORMAT_A8_UINT:
592 return MESA_FORMAT_A_UINT8;
593 case PIPE_FORMAT_A16_UINT:
594 return MESA_FORMAT_A_UINT16;
595 case PIPE_FORMAT_A32_UINT:
596 return MESA_FORMAT_A_UINT32;
597 case PIPE_FORMAT_A8_SINT:
598 return MESA_FORMAT_A_SINT8;
599 case PIPE_FORMAT_A16_SINT:
600 return MESA_FORMAT_A_SINT16;
601 case PIPE_FORMAT_A32_SINT:
602 return MESA_FORMAT_A_SINT32;
603
604 case PIPE_FORMAT_I8_UINT:
605 return MESA_FORMAT_I_UINT8;
606 case PIPE_FORMAT_I16_UINT:
607 return MESA_FORMAT_I_UINT16;
608 case PIPE_FORMAT_I32_UINT:
609 return MESA_FORMAT_I_UINT32;
610 case PIPE_FORMAT_I8_SINT:
611 return MESA_FORMAT_I_SINT8;
612 case PIPE_FORMAT_I16_SINT:
613 return MESA_FORMAT_I_SINT16;
614 case PIPE_FORMAT_I32_SINT:
615 return MESA_FORMAT_I_SINT32;
616
617 case PIPE_FORMAT_L8_UINT:
618 return MESA_FORMAT_L_UINT8;
619 case PIPE_FORMAT_L16_UINT:
620 return MESA_FORMAT_L_UINT16;
621 case PIPE_FORMAT_L32_UINT:
622 return MESA_FORMAT_L_UINT32;
623 case PIPE_FORMAT_L8_SINT:
624 return MESA_FORMAT_L_SINT8;
625 case PIPE_FORMAT_L16_SINT:
626 return MESA_FORMAT_L_SINT16;
627 case PIPE_FORMAT_L32_SINT:
628 return MESA_FORMAT_L_SINT32;
629
630 case PIPE_FORMAT_L8A8_UINT:
631 return MESA_FORMAT_LA_UINT8;
632 case PIPE_FORMAT_L16A16_UINT:
633 return MESA_FORMAT_LA_UINT16;
634 case PIPE_FORMAT_L32A32_UINT:
635 return MESA_FORMAT_LA_UINT32;
636 case PIPE_FORMAT_L8A8_SINT:
637 return MESA_FORMAT_LA_SINT8;
638 case PIPE_FORMAT_L16A16_SINT:
639 return MESA_FORMAT_LA_SINT16;
640 case PIPE_FORMAT_L32A32_SINT:
641 return MESA_FORMAT_LA_SINT32;
642
643 case PIPE_FORMAT_R8_SINT:
644 return MESA_FORMAT_R_SINT8;
645 case PIPE_FORMAT_R8G8_SINT:
646 return MESA_FORMAT_RG_SINT8;
647 case PIPE_FORMAT_R8G8B8_SINT:
648 return MESA_FORMAT_RGB_SINT8;
649 case PIPE_FORMAT_R8G8B8A8_SINT:
650 return MESA_FORMAT_RGBA_SINT8;
651
652 case PIPE_FORMAT_R16_SINT:
653 return MESA_FORMAT_R_SINT16;
654 case PIPE_FORMAT_R16G16_SINT:
655 return MESA_FORMAT_RG_SINT16;
656 case PIPE_FORMAT_R16G16B16_SINT:
657 return MESA_FORMAT_RGB_SINT16;
658 case PIPE_FORMAT_R16G16B16A16_SINT:
659 return MESA_FORMAT_RGBA_SINT16;
660
661 case PIPE_FORMAT_R32_SINT:
662 return MESA_FORMAT_R_SINT32;
663 case PIPE_FORMAT_R32G32_SINT:
664 return MESA_FORMAT_RG_SINT32;
665 case PIPE_FORMAT_R32G32B32_SINT:
666 return MESA_FORMAT_RGB_SINT32;
667 case PIPE_FORMAT_R32G32B32A32_SINT:
668 return MESA_FORMAT_RGBA_SINT32;
669
670 /* unsigned int formats */
671 case PIPE_FORMAT_R8_UINT:
672 return MESA_FORMAT_R_UINT8;
673 case PIPE_FORMAT_R8G8_UINT:
674 return MESA_FORMAT_RG_UINT8;
675 case PIPE_FORMAT_R8G8B8_UINT:
676 return MESA_FORMAT_RGB_UINT8;
677 case PIPE_FORMAT_R8G8B8A8_UINT:
678 return MESA_FORMAT_RGBA_UINT8;
679
680 case PIPE_FORMAT_R16_UINT:
681 return MESA_FORMAT_R_UINT16;
682 case PIPE_FORMAT_R16G16_UINT:
683 return MESA_FORMAT_RG_UINT16;
684 case PIPE_FORMAT_R16G16B16_UINT:
685 return MESA_FORMAT_RGB_UINT16;
686 case PIPE_FORMAT_R16G16B16A16_UINT:
687 return MESA_FORMAT_RGBA_UINT16;
688
689 case PIPE_FORMAT_R32_UINT:
690 return MESA_FORMAT_R_UINT32;
691 case PIPE_FORMAT_R32G32_UINT:
692 return MESA_FORMAT_RG_UINT32;
693 case PIPE_FORMAT_R32G32B32_UINT:
694 return MESA_FORMAT_RGB_UINT32;
695 case PIPE_FORMAT_R32G32B32A32_UINT:
696 return MESA_FORMAT_RGBA_UINT32;
697
698 case PIPE_FORMAT_RGTC1_UNORM:
699 return MESA_FORMAT_R_RGTC1_UNORM;
700 case PIPE_FORMAT_RGTC1_SNORM:
701 return MESA_FORMAT_R_RGTC1_SNORM;
702 case PIPE_FORMAT_RGTC2_UNORM:
703 return MESA_FORMAT_RG_RGTC2_UNORM;
704 case PIPE_FORMAT_RGTC2_SNORM:
705 return MESA_FORMAT_RG_RGTC2_SNORM;
706
707 case PIPE_FORMAT_LATC1_UNORM:
708 return MESA_FORMAT_L_LATC1_UNORM;
709 case PIPE_FORMAT_LATC1_SNORM:
710 return MESA_FORMAT_L_LATC1_SNORM;
711 case PIPE_FORMAT_LATC2_UNORM:
712 return MESA_FORMAT_LA_LATC2_UNORM;
713 case PIPE_FORMAT_LATC2_SNORM:
714 return MESA_FORMAT_LA_LATC2_SNORM;
715
716 case PIPE_FORMAT_ETC1_RGB8:
717 return MESA_FORMAT_ETC1_RGB8;
718
719 case PIPE_FORMAT_BPTC_RGBA_UNORM:
720 return MESA_FORMAT_BPTC_RGBA_UNORM;
721 case PIPE_FORMAT_BPTC_SRGBA:
722 return MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM;
723 case PIPE_FORMAT_BPTC_RGB_FLOAT:
724 return MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT;
725 case PIPE_FORMAT_BPTC_RGB_UFLOAT:
726 return MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT;
727
728 /* signed normalized formats */
729 case PIPE_FORMAT_R8_SNORM:
730 return MESA_FORMAT_R_SNORM8;
731 case PIPE_FORMAT_R8G8_SNORM:
732 return MESA_FORMAT_R8G8_SNORM;
733 case PIPE_FORMAT_R8G8B8A8_SNORM:
734 return MESA_FORMAT_R8G8B8A8_SNORM;
735
736 case PIPE_FORMAT_A8_SNORM:
737 return MESA_FORMAT_A_SNORM8;
738 case PIPE_FORMAT_L8_SNORM:
739 return MESA_FORMAT_L_SNORM8;
740 case PIPE_FORMAT_L8A8_SNORM:
741 return MESA_FORMAT_L8A8_SNORM;
742 case PIPE_FORMAT_I8_SNORM:
743 return MESA_FORMAT_I_SNORM8;
744
745 case PIPE_FORMAT_R16_SNORM:
746 return MESA_FORMAT_R_SNORM16;
747 case PIPE_FORMAT_R16G16_SNORM:
748 return MESA_FORMAT_R16G16_SNORM;
749 case PIPE_FORMAT_R16G16B16A16_SNORM:
750 return MESA_FORMAT_RGBA_SNORM16;
751
752 case PIPE_FORMAT_A16_SNORM:
753 return MESA_FORMAT_A_SNORM16;
754 case PIPE_FORMAT_L16_SNORM:
755 return MESA_FORMAT_L_SNORM16;
756 case PIPE_FORMAT_L16A16_SNORM:
757 return MESA_FORMAT_LA_SNORM16;
758 case PIPE_FORMAT_I16_SNORM:
759 return MESA_FORMAT_I_SNORM16;
760
761 case PIPE_FORMAT_R9G9B9E5_FLOAT:
762 return MESA_FORMAT_R9G9B9E5_FLOAT;
763 case PIPE_FORMAT_R11G11B10_FLOAT:
764 return MESA_FORMAT_R11G11B10_FLOAT;
765
766 case PIPE_FORMAT_B10G10R10A2_UINT:
767 return MESA_FORMAT_B10G10R10A2_UINT;
768 case PIPE_FORMAT_R10G10B10A2_UINT:
769 return MESA_FORMAT_R10G10B10A2_UINT;
770
771 case PIPE_FORMAT_B4G4R4X4_UNORM:
772 return MESA_FORMAT_B4G4R4X4_UNORM;
773 case PIPE_FORMAT_B5G5R5X1_UNORM:
774 return MESA_FORMAT_B5G5R5X1_UNORM;
775 case PIPE_FORMAT_R8G8B8X8_SNORM:
776 return MESA_FORMAT_R8G8B8X8_SNORM;
777 case PIPE_FORMAT_R8G8B8X8_SRGB:
778 return MESA_FORMAT_R8G8B8X8_SRGB;
779 case PIPE_FORMAT_R8G8B8X8_UINT:
780 return MESA_FORMAT_RGBX_UINT8;
781 case PIPE_FORMAT_R8G8B8X8_SINT:
782 return MESA_FORMAT_RGBX_SINT8;
783 case PIPE_FORMAT_B10G10R10X2_UNORM:
784 return MESA_FORMAT_B10G10R10X2_UNORM;
785 case PIPE_FORMAT_R16G16B16X16_UNORM:
786 return MESA_FORMAT_RGBX_UNORM16;
787 case PIPE_FORMAT_R16G16B16X16_SNORM:
788 return MESA_FORMAT_RGBX_SNORM16;
789 case PIPE_FORMAT_R16G16B16X16_FLOAT:
790 return MESA_FORMAT_RGBX_FLOAT16;
791 case PIPE_FORMAT_R16G16B16X16_UINT:
792 return MESA_FORMAT_RGBX_UINT16;
793 case PIPE_FORMAT_R16G16B16X16_SINT:
794 return MESA_FORMAT_RGBX_SINT16;
795 case PIPE_FORMAT_R32G32B32X32_FLOAT:
796 return MESA_FORMAT_RGBX_FLOAT32;
797 case PIPE_FORMAT_R32G32B32X32_UINT:
798 return MESA_FORMAT_RGBX_UINT32;
799 case PIPE_FORMAT_R32G32B32X32_SINT:
800 return MESA_FORMAT_RGBX_SINT32;
801
802 case PIPE_FORMAT_B8G8R8X8_SRGB:
803 return MESA_FORMAT_B8G8R8X8_SRGB;
804 case PIPE_FORMAT_R8G8B8A8_SRGB:
805 return MESA_FORMAT_R8G8B8A8_SRGB;
806
807 default:
808 return MESA_FORMAT_NONE;
809 }
810 }
811
812
813 /**
814 * Debug only: check that the two functions above correctly map
815 * Mesa formats to Gallium formats and back again.
816 */
817 static void
818 test_format_conversion(struct st_context *st)
819 {
820 GLuint i;
821
822 /* test all Mesa formats */
823 for (i = 1; i < MESA_FORMAT_COUNT; i++) {
824 enum pipe_format pf;
825
826 /* ETC formats are translated differently, skip them. */
827 if (_mesa_is_format_etc2(i))
828 continue;
829 if (i == MESA_FORMAT_ETC1_RGB8 && !st->has_etc1)
830 continue;
831
832 pf = st_mesa_format_to_pipe_format(st, i);
833 if (pf != PIPE_FORMAT_NONE) {
834 mesa_format mf = st_pipe_format_to_mesa_format(pf);
835 assert(mf == i);
836 }
837 }
838
839 /* Test all Gallium formats */
840 for (i = 1; i < PIPE_FORMAT_COUNT; i++) {
841 mesa_format mf = st_pipe_format_to_mesa_format(i);
842
843 /* ETC formats are translated differently, skip them. */
844 if (i == PIPE_FORMAT_ETC1_RGB8 && !st->has_etc1)
845 continue;
846
847 if (mf != MESA_FORMAT_NONE) {
848 enum pipe_format pf = st_mesa_format_to_pipe_format(st, mf);
849 assert(pf == i);
850 }
851 }
852 }
853
854
855 /**
856 * Map GL texture formats to Gallium pipe formats.
857 */
858 struct format_mapping
859 {
860 GLenum glFormats[18]; /**< list of GLenum formats, 0-terminated */
861 enum pipe_format pipeFormats[13]; /**< list of pipe formats, 0-terminated */
862 };
863
864
865 #define DEFAULT_RGBA_FORMATS \
866 PIPE_FORMAT_B8G8R8A8_UNORM, \
867 PIPE_FORMAT_R8G8B8A8_UNORM, \
868 PIPE_FORMAT_A8R8G8B8_UNORM, \
869 PIPE_FORMAT_A8B8G8R8_UNORM, \
870 0
871
872 #define DEFAULT_RGB_FORMATS \
873 PIPE_FORMAT_B8G8R8X8_UNORM, \
874 PIPE_FORMAT_R8G8B8X8_UNORM, \
875 PIPE_FORMAT_X8R8G8B8_UNORM, \
876 PIPE_FORMAT_X8B8G8R8_UNORM, \
877 PIPE_FORMAT_B5G6R5_UNORM, \
878 DEFAULT_RGBA_FORMATS
879
880 #define DEFAULT_SRGBA_FORMATS \
881 PIPE_FORMAT_B8G8R8A8_SRGB, \
882 PIPE_FORMAT_A8R8G8B8_SRGB, \
883 PIPE_FORMAT_A8B8G8R8_SRGB, \
884 0
885
886 #define DEFAULT_DEPTH_FORMATS \
887 PIPE_FORMAT_Z24X8_UNORM, \
888 PIPE_FORMAT_X8Z24_UNORM, \
889 PIPE_FORMAT_Z16_UNORM, \
890 PIPE_FORMAT_Z24_UNORM_S8_UINT, \
891 PIPE_FORMAT_S8_UINT_Z24_UNORM, \
892 0
893
894 #define DEFAULT_SNORM8_RGBA_FORMATS \
895 PIPE_FORMAT_R8G8B8A8_SNORM, \
896 0
897
898 #define DEFAULT_UNORM16_RGBA_FORMATS \
899 PIPE_FORMAT_R16G16B16A16_UNORM, \
900 DEFAULT_RGBA_FORMATS
901
902
903 /**
904 * This table maps OpenGL texture format enums to Gallium pipe_format enums.
905 * Multiple GL enums might map to multiple pipe_formats.
906 * The first pipe format in the list that's supported is the one that's chosen.
907 */
908 static const struct format_mapping format_map[] = {
909 /* Basic RGB, RGBA formats */
910 {
911 { GL_RGB10, 0 },
912 { PIPE_FORMAT_B10G10R10X2_UNORM, PIPE_FORMAT_B10G10R10A2_UNORM,
913 DEFAULT_RGB_FORMATS }
914 },
915 {
916 { GL_RGB10_A2, 0 },
917 { PIPE_FORMAT_B10G10R10A2_UNORM, PIPE_FORMAT_R10G10B10A2_UNORM,
918 DEFAULT_RGBA_FORMATS }
919 },
920 {
921 { 4, GL_RGBA, GL_RGBA8, 0 },
922 { PIPE_FORMAT_R8G8B8A8_UNORM, DEFAULT_RGBA_FORMATS }
923 },
924 {
925 { GL_BGRA, 0 },
926 { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGBA_FORMATS }
927 },
928 {
929 { 3, GL_RGB, GL_RGB8, 0 },
930 { DEFAULT_RGB_FORMATS }
931 },
932 {
933 { GL_RGB12, GL_RGB16, 0 },
934 { PIPE_FORMAT_R16G16B16X16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
935 DEFAULT_RGB_FORMATS }
936 },
937 {
938 { GL_RGBA12, GL_RGBA16, 0 },
939 { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
940 },
941 {
942 { GL_RGBA4, GL_RGBA2, 0 },
943 { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
944 },
945 {
946 { GL_RGB5_A1, 0 },
947 { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
948 },
949 {
950 { GL_R3_G3_B2, 0 },
951 { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
952 PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGB_FORMATS }
953 },
954 {
955 { GL_RGB4 },
956 { PIPE_FORMAT_B4G4R4X4_UNORM, PIPE_FORMAT_B4G4R4A4_UNORM,
957 DEFAULT_RGB_FORMATS }
958 },
959 {
960 { GL_RGB5 },
961 { PIPE_FORMAT_B5G5R5X1_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
962 DEFAULT_RGB_FORMATS }
963 },
964 {
965 { GL_RGB565 },
966 { PIPE_FORMAT_B5G6R5_UNORM, DEFAULT_RGB_FORMATS }
967 },
968
969 /* basic Alpha formats */
970 {
971 { GL_ALPHA12, GL_ALPHA16, 0 },
972 { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
973 DEFAULT_RGBA_FORMATS }
974 },
975 {
976 { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
977 { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
978 },
979
980 /* basic Luminance formats */
981 {
982 { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
983 { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
984 },
985 {
986 { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
987 { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
988 },
989
990 /* basic Luminance/Alpha formats */
991 {
992 { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
993 GL_LUMINANCE16_ALPHA16, 0},
994 { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
995 DEFAULT_RGBA_FORMATS }
996 },
997 {
998 { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
999 { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1000 },
1001 {
1002 { GL_LUMINANCE4_ALPHA4, 0 },
1003 { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
1004 DEFAULT_RGBA_FORMATS }
1005 },
1006
1007 /* basic Intensity formats */
1008 {
1009 { GL_INTENSITY12, GL_INTENSITY16, 0 },
1010 { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1011 },
1012 {
1013 { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
1014 GL_COMPRESSED_INTENSITY, 0 },
1015 { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1016 },
1017
1018 /* YCbCr */
1019 {
1020 { GL_YCBCR_MESA, 0 },
1021 { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
1022 },
1023
1024 /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
1025 {
1026 { GL_COMPRESSED_RGB, 0 },
1027 { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
1028 },
1029 {
1030 { GL_COMPRESSED_RGBA, 0 },
1031 { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
1032 },
1033 {
1034 { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
1035 { PIPE_FORMAT_DXT1_RGB, 0 }
1036 },
1037 {
1038 { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
1039 { PIPE_FORMAT_DXT1_RGBA, 0 }
1040 },
1041 {
1042 { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
1043 { PIPE_FORMAT_DXT3_RGBA, 0 }
1044 },
1045 {
1046 { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
1047 { PIPE_FORMAT_DXT5_RGBA, 0 }
1048 },
1049
1050 #if 0
1051 {
1052 { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
1053 { PIPE_FORMAT_RGB_FXT1, 0 }
1054 },
1055 {
1056 { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
1057 { PIPE_FORMAT_RGBA_FXT1, 0 }
1058 },
1059 #endif
1060
1061 /* Depth formats */
1062 {
1063 { GL_DEPTH_COMPONENT16, 0 },
1064 { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
1065 },
1066 {
1067 { GL_DEPTH_COMPONENT24, 0 },
1068 { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
1069 DEFAULT_DEPTH_FORMATS }
1070 },
1071 {
1072 { GL_DEPTH_COMPONENT32, 0 },
1073 { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
1074 },
1075 {
1076 { GL_DEPTH_COMPONENT, 0 },
1077 { DEFAULT_DEPTH_FORMATS }
1078 },
1079 {
1080 { GL_DEPTH_COMPONENT32F, 0 },
1081 { PIPE_FORMAT_Z32_FLOAT, 0 }
1082 },
1083
1084 /* stencil formats */
1085 {
1086 { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
1087 GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
1088 {
1089 PIPE_FORMAT_S8_UINT, PIPE_FORMAT_Z24_UNORM_S8_UINT,
1090 PIPE_FORMAT_S8_UINT_Z24_UNORM, 0
1091 }
1092 },
1093
1094 /* Depth / Stencil formats */
1095 {
1096 { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
1097 { PIPE_FORMAT_Z24_UNORM_S8_UINT, PIPE_FORMAT_S8_UINT_Z24_UNORM, 0 }
1098 },
1099 {
1100 { GL_DEPTH32F_STENCIL8, 0 },
1101 { PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, 0 }
1102 },
1103
1104 /* sRGB formats */
1105 {
1106 { GL_SRGB_EXT, GL_SRGB8_EXT, 0 },
1107 { PIPE_FORMAT_R8G8B8X8_SRGB, PIPE_FORMAT_B8G8R8X8_SRGB,
1108 DEFAULT_SRGBA_FORMATS }
1109 },
1110 {
1111 { GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
1112 { DEFAULT_SRGBA_FORMATS }
1113 },
1114 {
1115 { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
1116 { PIPE_FORMAT_DXT1_SRGB, PIPE_FORMAT_R8G8B8X8_SRGB,
1117 PIPE_FORMAT_B8G8R8X8_SRGB, DEFAULT_SRGBA_FORMATS }
1118 },
1119 {
1120 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
1121 { PIPE_FORMAT_DXT1_SRGBA, 0 }
1122 },
1123 {
1124 { GL_COMPRESSED_SRGB_ALPHA_EXT,
1125 GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
1126 { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
1127 },
1128 {
1129 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
1130 { PIPE_FORMAT_DXT5_SRGBA, 0 }
1131 },
1132 {
1133 { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
1134 GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
1135 { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
1136 },
1137 {
1138 { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, GL_COMPRESSED_SLUMINANCE_EXT,
1139 0 },
1140 { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
1141 },
1142
1143 /* 16-bit float formats */
1144 {
1145 { GL_RGBA16F_ARB, 0 },
1146 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1147 },
1148 {
1149 { GL_RGB16F_ARB, 0 },
1150 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16X16_FLOAT,
1151 PIPE_FORMAT_R16G16B16A16_FLOAT,
1152 PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1153 },
1154 {
1155 { GL_LUMINANCE_ALPHA16F_ARB, 0 },
1156 { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1157 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1158 },
1159 {
1160 { GL_ALPHA16F_ARB, 0 },
1161 { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1162 PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1163 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1164 },
1165 {
1166 { GL_INTENSITY16F_ARB, 0 },
1167 { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1168 PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1169 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1170 },
1171 {
1172 { GL_LUMINANCE16F_ARB, 0 },
1173 { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1174 PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1175 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1176 },
1177 {
1178 { GL_R16F, 0 },
1179 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
1180 PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1181 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1182 },
1183 {
1184 { GL_RG16F, 0 },
1185 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1186 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1187 },
1188
1189 /* 32-bit float formats */
1190 {
1191 { GL_RGBA32F_ARB, 0 },
1192 { PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1193 },
1194 {
1195 { GL_RGB32F_ARB, 0 },
1196 { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32X32_FLOAT,
1197 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1198 },
1199 {
1200 { GL_LUMINANCE_ALPHA32F_ARB, 0 },
1201 { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1202 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1203 },
1204 {
1205 { GL_ALPHA32F_ARB, 0 },
1206 { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1207 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_A16_FLOAT,
1208 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1209 },
1210 {
1211 { GL_INTENSITY32F_ARB, 0 },
1212 { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1213 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_I16_FLOAT,
1214 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1215 },
1216 {
1217 { GL_LUMINANCE32F_ARB, 0 },
1218 { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1219 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_L16_FLOAT,
1220 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1221 },
1222 {
1223 { GL_R32F, 0 },
1224 { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
1225 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16_FLOAT,
1226 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1227 },
1228 {
1229 { GL_RG32F, 0 },
1230 { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1231 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1232 },
1233
1234 /* R, RG formats */
1235 {
1236 { GL_RED, GL_R8, 0 },
1237 { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1238 },
1239 {
1240 { GL_RG, GL_RG8, 0 },
1241 { PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1242 },
1243 {
1244 { GL_R16, 0 },
1245 { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R16G16_UNORM,
1246 DEFAULT_UNORM16_RGBA_FORMATS }
1247 },
1248 {
1249 { GL_RG16, 0 },
1250 { PIPE_FORMAT_R16G16_UNORM, DEFAULT_UNORM16_RGBA_FORMATS }
1251 },
1252
1253 /* compressed R, RG formats */
1254 {
1255 { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
1256 { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, DEFAULT_RGBA_FORMATS }
1257 },
1258 {
1259 { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
1260 { PIPE_FORMAT_RGTC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1261 },
1262 {
1263 { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
1264 { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1265 },
1266 {
1267 { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
1268 { PIPE_FORMAT_RGTC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1269 },
1270 {
1271 { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
1272 { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
1273 },
1274 {
1275 { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
1276 { PIPE_FORMAT_LATC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1277 },
1278 {
1279 { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
1280 GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
1281 { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1282 },
1283 {
1284 { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
1285 { PIPE_FORMAT_LATC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1286 },
1287
1288 /* ETC1 */
1289 {
1290 { GL_ETC1_RGB8_OES, 0 },
1291 { PIPE_FORMAT_ETC1_RGB8, 0 }
1292 },
1293
1294 /* BPTC */
1295 {
1296 { GL_COMPRESSED_RGBA_BPTC_UNORM, 0 },
1297 { PIPE_FORMAT_BPTC_RGBA_UNORM, 0 },
1298 },
1299 {
1300 { GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, 0 },
1301 { PIPE_FORMAT_BPTC_SRGBA, 0 },
1302 },
1303 {
1304 { GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, 0 },
1305 { PIPE_FORMAT_BPTC_RGB_FLOAT, 0 },
1306 },
1307 {
1308 { GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, 0 },
1309 { PIPE_FORMAT_BPTC_RGB_UFLOAT, 0 },
1310 },
1311
1312 /* signed/unsigned integer formats.
1313 */
1314 {
1315 { GL_RGBA_INTEGER_EXT,
1316 GL_BGRA_INTEGER_EXT,
1317 GL_RGBA8I_EXT, 0 },
1318 { PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1319 },
1320 {
1321 { GL_RGB_INTEGER_EXT,
1322 GL_BGR_INTEGER_EXT,
1323 GL_RGB8I_EXT,
1324 GL_BLUE_INTEGER_EXT, 0 },
1325 { PIPE_FORMAT_R8G8B8_SINT, PIPE_FORMAT_R8G8B8X8_SINT,
1326 PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1327 },
1328 {
1329 { GL_ALPHA_INTEGER_EXT,
1330 GL_ALPHA8I_EXT, 0 },
1331 { PIPE_FORMAT_A8_SINT, 0 }
1332 },
1333 {
1334 { GL_ALPHA16I_EXT, 0 },
1335 { PIPE_FORMAT_A16_SINT, 0 }
1336 },
1337 {
1338 { GL_ALPHA32I_EXT, 0 },
1339 { PIPE_FORMAT_A32_SINT, 0 }
1340 },
1341 {
1342 { GL_ALPHA8UI_EXT, 0 },
1343 { PIPE_FORMAT_A8_UINT, 0 }
1344 },
1345 {
1346 { GL_ALPHA16UI_EXT, 0 },
1347 { PIPE_FORMAT_A16_UINT, 0 }
1348 },
1349 {
1350 { GL_ALPHA32UI_EXT, 0 },
1351 { PIPE_FORMAT_A32_UINT, 0 }
1352 },
1353 {
1354 { GL_INTENSITY8I_EXT, 0 },
1355 { PIPE_FORMAT_I8_SINT, 0 }
1356 },
1357 {
1358 { GL_INTENSITY16I_EXT, 0 },
1359 { PIPE_FORMAT_I16_SINT, 0 }
1360 },
1361 {
1362 { GL_INTENSITY32I_EXT, 0 },
1363 { PIPE_FORMAT_I32_SINT, 0 }
1364 },
1365 {
1366 { GL_INTENSITY8UI_EXT, 0 },
1367 { PIPE_FORMAT_I8_UINT, 0 }
1368 },
1369 {
1370 { GL_INTENSITY16UI_EXT, 0 },
1371 { PIPE_FORMAT_I16_UINT, 0 }
1372 },
1373 {
1374 { GL_INTENSITY32UI_EXT, 0 },
1375 { PIPE_FORMAT_I32_UINT, 0 }
1376 },
1377 {
1378 { GL_LUMINANCE8I_EXT, 0 },
1379 { PIPE_FORMAT_L8_SINT, 0 }
1380 },
1381 {
1382 { GL_LUMINANCE16I_EXT, 0 },
1383 { PIPE_FORMAT_L16_SINT, 0 }
1384 },
1385 {
1386 { GL_LUMINANCE32I_EXT, 0 },
1387 { PIPE_FORMAT_L32_SINT, 0 }
1388 },
1389 {
1390 { GL_LUMINANCE_INTEGER_EXT,
1391 GL_LUMINANCE8UI_EXT, 0 },
1392 { PIPE_FORMAT_L8_UINT, 0 }
1393 },
1394 {
1395 { GL_LUMINANCE16UI_EXT, 0 },
1396 { PIPE_FORMAT_L16_UINT, 0 }
1397 },
1398 {
1399 { GL_LUMINANCE32UI_EXT, 0 },
1400 { PIPE_FORMAT_L32_UINT, 0 }
1401 },
1402 {
1403 { GL_LUMINANCE_ALPHA_INTEGER_EXT,
1404 GL_LUMINANCE_ALPHA8I_EXT, 0 },
1405 { PIPE_FORMAT_L8A8_SINT, 0 }
1406 },
1407 {
1408 { GL_LUMINANCE_ALPHA16I_EXT, 0 },
1409 { PIPE_FORMAT_L16A16_SINT, 0 }
1410 },
1411 {
1412 { GL_LUMINANCE_ALPHA32I_EXT, 0 },
1413 { PIPE_FORMAT_L32A32_SINT, 0 }
1414 },
1415 {
1416 { GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1417 { PIPE_FORMAT_L8A8_UINT, 0 }
1418 },
1419 {
1420 { GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1421 { PIPE_FORMAT_L16A16_UINT, 0 }
1422 },
1423 {
1424 { GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1425 { PIPE_FORMAT_L32A32_UINT, 0 }
1426 },
1427 {
1428 { GL_RGB16I_EXT, 0 },
1429 { PIPE_FORMAT_R16G16B16_SINT, PIPE_FORMAT_R16G16B16X16_SINT,
1430 PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1431 },
1432 {
1433 { GL_RGBA16I_EXT, 0 },
1434 { PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1435 },
1436 {
1437 { GL_RGB32I_EXT, 0 },
1438 { PIPE_FORMAT_R32G32B32_SINT, PIPE_FORMAT_R32G32B32X32_SINT,
1439 PIPE_FORMAT_R32G32B32A32_SINT, 0 },
1440 },
1441 {
1442 { GL_RGBA32I_EXT, 0 },
1443 { PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1444 },
1445 {
1446 { GL_RGBA8UI_EXT, 0 },
1447 { PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1448 },
1449 {
1450 { GL_RGB8UI_EXT, 0 },
1451 { PIPE_FORMAT_R8G8B8_UINT, PIPE_FORMAT_R8G8B8X8_UINT,
1452 PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1453 },
1454 {
1455 { GL_RGB16UI_EXT, 0 },
1456 { PIPE_FORMAT_R16G16B16_UINT, PIPE_FORMAT_R16G16B16X16_UINT,
1457 PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1458 },
1459 {
1460 { GL_RGBA16UI_EXT, 0 },
1461 { PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1462 },
1463 {
1464 { GL_RGB32UI_EXT, 0},
1465 { PIPE_FORMAT_R32G32B32_UINT, PIPE_FORMAT_R32G32B32X32_UINT,
1466 PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1467 },
1468 {
1469 { GL_RGBA32UI_EXT, 0},
1470 { PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1471 },
1472 {
1473 { GL_R8I, GL_RED_INTEGER_EXT, 0},
1474 { PIPE_FORMAT_R8_SINT, 0},
1475 },
1476 {
1477 { GL_R16I, 0},
1478 { PIPE_FORMAT_R16_SINT, 0},
1479 },
1480 {
1481 { GL_R32I, 0},
1482 { PIPE_FORMAT_R32_SINT, 0},
1483 },
1484 {
1485 { GL_R8UI, 0},
1486 { PIPE_FORMAT_R8_UINT, 0},
1487 },
1488 {
1489 { GL_R16UI, 0},
1490 { PIPE_FORMAT_R16_UINT, 0},
1491 },
1492 {
1493 { GL_R32UI, 0},
1494 { PIPE_FORMAT_R32_UINT, 0},
1495 },
1496 {
1497 { GL_RG8I, GL_GREEN_INTEGER_EXT, 0},
1498 { PIPE_FORMAT_R8G8_SINT, 0},
1499 },
1500 {
1501 { GL_RG16I, 0},
1502 { PIPE_FORMAT_R16G16_SINT, 0},
1503 },
1504 {
1505 { GL_RG32I, 0},
1506 { PIPE_FORMAT_R32G32_SINT, 0},
1507 },
1508 {
1509 { GL_RG8UI, 0},
1510 { PIPE_FORMAT_R8G8_UINT, 0},
1511 },
1512 {
1513 { GL_RG16UI, 0},
1514 { PIPE_FORMAT_R16G16_UINT, 0},
1515 },
1516 {
1517 { GL_RG32UI, 0},
1518 { PIPE_FORMAT_R32G32_UINT, 0},
1519 },
1520 /* signed normalized formats */
1521 {
1522 { GL_RED_SNORM, GL_R8_SNORM, 0 },
1523 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1524 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1525 },
1526 {
1527 { GL_R16_SNORM, 0 },
1528 { PIPE_FORMAT_R16_SNORM,
1529 PIPE_FORMAT_R16G16_SNORM,
1530 PIPE_FORMAT_R16G16B16A16_SNORM,
1531 PIPE_FORMAT_R8_SNORM,
1532 PIPE_FORMAT_R8G8_SNORM,
1533 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1534 },
1535 {
1536 { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1537 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1538 },
1539 {
1540 { GL_RG16_SNORM, 0 },
1541 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1542 PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1543 },
1544 {
1545 { GL_RGB_SNORM, GL_RGB8_SNORM, 0 },
1546 { PIPE_FORMAT_R8G8B8X8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1547 },
1548 {
1549 { GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1550 { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1551 },
1552 {
1553 { GL_RGB16_SNORM, 0 },
1554 { PIPE_FORMAT_R16G16B16X16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1555 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1556 },
1557 {
1558 { GL_RGBA16_SNORM, 0 },
1559 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1560 },
1561 {
1562 { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1563 { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1564 },
1565 {
1566 { GL_ALPHA16_SNORM, 0 },
1567 { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1568 PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1569 },
1570 {
1571 { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1572 { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1573 },
1574 {
1575 { GL_LUMINANCE16_SNORM, 0 },
1576 { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1577 PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1578 },
1579 {
1580 { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1581 { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1582 },
1583 {
1584 { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
1585 { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1586 PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1587 },
1588 {
1589 { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
1590 { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1591 },
1592 {
1593 { GL_INTENSITY16_SNORM, 0 },
1594 { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1595 PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1596 },
1597 {
1598 { GL_RGB9_E5, 0 },
1599 { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
1600 },
1601 {
1602 { GL_R11F_G11F_B10F, 0 },
1603 { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
1604 },
1605 {
1606 { GL_RGB10_A2UI, 0 },
1607 { PIPE_FORMAT_R10G10B10A2_UINT, PIPE_FORMAT_B10G10R10A2_UINT, 0 }
1608 },
1609 };
1610
1611
1612 /**
1613 * Return first supported format from the given list.
1614 * \param allow_dxt indicates whether it's OK to return a DXT format.
1615 */
1616 static enum pipe_format
1617 find_supported_format(struct pipe_screen *screen,
1618 const enum pipe_format formats[],
1619 enum pipe_texture_target target,
1620 unsigned sample_count,
1621 unsigned tex_usage,
1622 boolean allow_dxt)
1623 {
1624 uint i;
1625 for (i = 0; formats[i]; i++) {
1626 if (screen->is_format_supported(screen, formats[i], target,
1627 sample_count, tex_usage)) {
1628 if (!allow_dxt && util_format_is_s3tc(formats[i])) {
1629 /* we can't return a dxt format, continue searching */
1630 continue;
1631 }
1632
1633 return formats[i];
1634 }
1635 }
1636 return PIPE_FORMAT_NONE;
1637 }
1638
1639 struct exact_format_mapping
1640 {
1641 GLenum format;
1642 GLenum type;
1643 enum pipe_format pformat;
1644 };
1645
1646 static const struct exact_format_mapping rgba8888_tbl[] =
1647 {
1648 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ABGR8888_UNORM },
1649 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_ABGR8888_UNORM },
1650 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBA8888_UNORM },
1651 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBA8888_UNORM },
1652 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ARGB8888_UNORM },
1653 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRA8888_UNORM },
1654 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
1655 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
1656 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
1657 { 0, 0, 0 }
1658 };
1659
1660 static const struct exact_format_mapping rgbx8888_tbl[] =
1661 {
1662 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XBGR8888_UNORM },
1663 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_XBGR8888_UNORM },
1664 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBX8888_UNORM },
1665 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBX8888_UNORM },
1666 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XRGB8888_UNORM },
1667 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRX8888_UNORM },
1668 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
1669 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
1670 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
1671 { 0, 0, 0 }
1672 };
1673
1674 static const struct exact_format_mapping rgba1010102_tbl[] =
1675 {
1676 { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
1677 /* No Mesa formats for these Gallium formats:
1678 { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
1679 { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
1680 { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
1681 */
1682 { 0, 0, 0 }
1683 };
1684
1685 /**
1686 * If there is an exact pipe_format match for {internalFormat, format, type}
1687 * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
1688 */
1689 static enum pipe_format
1690 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
1691 {
1692 uint i;
1693 const struct exact_format_mapping* tbl;
1694
1695 if (format == GL_NONE || type == GL_NONE)
1696 return PIPE_FORMAT_NONE;
1697
1698 switch (internalFormat) {
1699 case 4:
1700 case GL_RGBA:
1701 case GL_RGBA8:
1702 tbl = rgba8888_tbl;
1703 break;
1704 case 3:
1705 case GL_RGB:
1706 case GL_RGB8:
1707 tbl = rgbx8888_tbl;
1708 break;
1709 case GL_RGB10_A2:
1710 tbl = rgba1010102_tbl;
1711 break;
1712 default:
1713 return PIPE_FORMAT_NONE;
1714 }
1715
1716 for (i = 0; tbl[i].format; i++)
1717 if (tbl[i].format == format && tbl[i].type == type)
1718 return tbl[i].pformat;
1719
1720 return PIPE_FORMAT_NONE;
1721 }
1722
1723 /**
1724 * Given an OpenGL internalFormat value for a texture or surface, return
1725 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
1726 * This is called during glTexImage2D, for example.
1727 *
1728 * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
1729 * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
1730 * we want render-to-texture ability.
1731 *
1732 * \param internalFormat the user value passed to glTexImage2D
1733 * \param target one of PIPE_TEXTURE_x
1734 * \param bindings bitmask of PIPE_BIND_x flags.
1735 * \param allow_dxt indicates whether it's OK to return a DXT format. This
1736 * only matters when internalFormat names a generic or
1737 * specific compressed format. And that should only happen
1738 * when we're getting called from gl[Copy]TexImage().
1739 */
1740 enum pipe_format
1741 st_choose_format(struct st_context *st, GLenum internalFormat,
1742 GLenum format, GLenum type,
1743 enum pipe_texture_target target, unsigned sample_count,
1744 unsigned bindings, boolean allow_dxt)
1745 {
1746 struct pipe_screen *screen = st->pipe->screen;
1747 int i, j;
1748 enum pipe_format pf;
1749
1750 #ifdef DEBUG
1751 {
1752 static boolean firstCall = TRUE;
1753 if (firstCall) {
1754 test_format_conversion(st);
1755 firstCall = FALSE;
1756 }
1757 }
1758 #else
1759 (void) test_format_conversion;
1760 #endif
1761
1762 /* can't render to compressed formats at this time */
1763 if (_mesa_is_compressed_format(st->ctx, internalFormat)
1764 && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
1765 return PIPE_FORMAT_NONE;
1766 }
1767
1768 /* search for exact matches */
1769 pf = find_exact_format(internalFormat, format, type);
1770 if (pf != PIPE_FORMAT_NONE &&
1771 screen->is_format_supported(screen, pf,
1772 target, sample_count, bindings))
1773 return pf;
1774
1775 /* search table for internalFormat */
1776 for (i = 0; i < Elements(format_map); i++) {
1777 const struct format_mapping *mapping = &format_map[i];
1778 for (j = 0; mapping->glFormats[j]; j++) {
1779 if (mapping->glFormats[j] == internalFormat) {
1780 /* Found the desired internal format. Find first pipe format
1781 * which is supported by the driver.
1782 */
1783 return find_supported_format(screen, mapping->pipeFormats,
1784 target, sample_count, bindings,
1785 allow_dxt);
1786 }
1787 }
1788 }
1789
1790 _mesa_problem(NULL, "unhandled format!\n");
1791 return PIPE_FORMAT_NONE;
1792 }
1793
1794
1795 /**
1796 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
1797 */
1798 enum pipe_format
1799 st_choose_renderbuffer_format(struct st_context *st,
1800 GLenum internalFormat, unsigned sample_count)
1801 {
1802 uint usage;
1803 if (_mesa_is_depth_or_stencil_format(internalFormat))
1804 usage = PIPE_BIND_DEPTH_STENCIL;
1805 else
1806 usage = PIPE_BIND_RENDER_TARGET;
1807 return st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
1808 PIPE_TEXTURE_2D, sample_count, usage, FALSE);
1809 }
1810
1811
1812 /**
1813 * Given an OpenGL user-requested format and type, and swapBytes state,
1814 * return the format which exactly matches those parameters, so that
1815 * a memcpy-based transfer can be done.
1816 *
1817 * If no format is supported, return PIPE_FORMAT_NONE.
1818 */
1819 enum pipe_format
1820 st_choose_matching_format(struct st_context *st, unsigned bind,
1821 GLenum format, GLenum type, GLboolean swapBytes)
1822 {
1823 struct pipe_screen *screen = st->pipe->screen;
1824 mesa_format mesa_format;
1825
1826 for (mesa_format = 1; mesa_format < MESA_FORMAT_COUNT; mesa_format++) {
1827 if (_mesa_get_format_color_encoding(mesa_format) == GL_SRGB) {
1828 continue;
1829 }
1830 if (_mesa_get_format_bits(mesa_format, GL_TEXTURE_INTENSITY_SIZE) > 0) {
1831 /* If `format` is GL_RED/GL_RED_INTEGER, then we might match some
1832 * intensity formats, which we don't want.
1833 */
1834 continue;
1835 }
1836
1837 if (_mesa_format_matches_format_and_type(mesa_format, format, type,
1838 swapBytes)) {
1839 enum pipe_format format =
1840 st_mesa_format_to_pipe_format(st, mesa_format);
1841
1842 if (format &&
1843 screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0,
1844 bind)) {
1845 return format;
1846 }
1847 /* It's unlikely to find 2 matching Mesa formats. */
1848 break;
1849 }
1850 }
1851 return PIPE_FORMAT_NONE;
1852 }
1853
1854
1855 /**
1856 * Called via ctx->Driver.ChooseTextureFormat().
1857 */
1858 mesa_format
1859 st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
1860 GLint internalFormat,
1861 GLenum format, GLenum type)
1862 {
1863 const boolean want_renderable =
1864 internalFormat == 3 || internalFormat == 4 ||
1865 internalFormat == GL_RGB || internalFormat == GL_RGBA ||
1866 internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
1867 internalFormat == GL_BGRA;
1868 struct st_context *st = st_context(ctx);
1869 enum pipe_format pFormat;
1870 unsigned bindings;
1871 enum pipe_texture_target pTarget = gl_target_to_pipe(target);
1872
1873 if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
1874 /* We don't do compression for these texture targets because of
1875 * difficulty with sub-texture updates on non-block boundaries, etc.
1876 * So change the internal format request to an uncompressed format.
1877 */
1878 internalFormat =
1879 _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
1880 }
1881
1882 /* GL textures may wind up being render targets, but we don't know
1883 * that in advance. Specify potential render target flags now.
1884 */
1885 bindings = PIPE_BIND_SAMPLER_VIEW;
1886 if (want_renderable) {
1887 if (_mesa_is_depth_or_stencil_format(internalFormat))
1888 bindings |= PIPE_BIND_DEPTH_STENCIL;
1889 else
1890 bindings |= PIPE_BIND_RENDER_TARGET;
1891 }
1892
1893 /* GLES allows the driver to choose any format which matches
1894 * the format+type combo, because GLES only supports unsized internal
1895 * formats and expects the driver to choose whatever suits it.
1896 */
1897 if (_mesa_is_gles(ctx)) {
1898 GLenum baseFormat = _mesa_base_tex_format(ctx, internalFormat);
1899 GLenum basePackFormat = _mesa_base_pack_format(format);
1900 GLenum iformat = internalFormat;
1901
1902 /* Treat GL_BGRA as GL_RGBA. */
1903 if (iformat == GL_BGRA)
1904 iformat = GL_RGBA;
1905
1906 /* Check if the internalformat is unsized and compatible
1907 * with the "format".
1908 */
1909 if (iformat == baseFormat && iformat == basePackFormat) {
1910 pFormat = st_choose_matching_format(st, bindings, format, type,
1911 ctx->Unpack.SwapBytes);
1912
1913 if (pFormat != PIPE_FORMAT_NONE)
1914 return st_pipe_format_to_mesa_format(pFormat);
1915
1916 /* try choosing format again, this time without render target bindings */
1917 pFormat = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW,
1918 format, type,
1919 ctx->Unpack.SwapBytes);
1920 if (pFormat != PIPE_FORMAT_NONE)
1921 return st_pipe_format_to_mesa_format(pFormat);
1922 }
1923 }
1924
1925 pFormat = st_choose_format(st, internalFormat, format, type,
1926 pTarget, 0, bindings, ctx->Mesa_DXTn);
1927
1928 if (pFormat == PIPE_FORMAT_NONE) {
1929 /* try choosing format again, this time without render target bindings */
1930 pFormat = st_choose_format(st, internalFormat, format, type,
1931 pTarget, 0, PIPE_BIND_SAMPLER_VIEW,
1932 ctx->Mesa_DXTn);
1933 }
1934
1935 if (pFormat == PIPE_FORMAT_NONE) {
1936 /* no luck at all */
1937 return MESA_FORMAT_NONE;
1938 }
1939
1940 return st_pipe_format_to_mesa_format(pFormat);
1941 }
1942
1943
1944 /**
1945 * Called via ctx->Driver.ChooseTextureFormat().
1946 */
1947 size_t
1948 st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
1949 GLenum internalFormat, int samples[16])
1950 {
1951 struct st_context *st = st_context(ctx);
1952 enum pipe_format format;
1953 unsigned i, bind, num_sample_counts = 0;
1954
1955 (void) target;
1956
1957 if (_mesa_is_depth_or_stencil_format(internalFormat))
1958 bind = PIPE_BIND_DEPTH_STENCIL;
1959 else
1960 bind = PIPE_BIND_RENDER_TARGET;
1961
1962 /* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
1963 * formats.
1964 */
1965 if (!ctx->Extensions.EXT_framebuffer_sRGB) {
1966 internalFormat = _mesa_get_linear_internalformat(internalFormat);
1967 }
1968
1969 /* Set sample counts in descending order. */
1970 for (i = 16; i > 1; i--) {
1971 format = st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
1972 PIPE_TEXTURE_2D, i, bind, FALSE);
1973
1974 if (format != PIPE_FORMAT_NONE) {
1975 samples[num_sample_counts++] = i;
1976 }
1977 }
1978
1979 if (!num_sample_counts) {
1980 samples[num_sample_counts++] = 1;
1981 }
1982
1983 return num_sample_counts;
1984 }
1985
1986
1987 /**
1988 * This is used for translating texture border color and the clear
1989 * color. For example, the clear color is interpreted according to
1990 * the renderbuffer's base format. For example, if clearing a
1991 * GL_LUMINANCE buffer, we'll return colorOut[0] = colorOut[1] =
1992 * colorOut[2] = colorIn[0].
1993 * Similarly for texture border colors.
1994 */
1995 void
1996 st_translate_color(const union gl_color_union *colorIn,
1997 union pipe_color_union *colorOut,
1998 GLenum baseFormat, GLboolean is_integer)
1999 {
2000 if (is_integer) {
2001 const int *in = colorIn->i;
2002 int *out = colorOut->i;
2003
2004 switch (baseFormat) {
2005 case GL_RED:
2006 out[0] = in[0];
2007 out[1] = 0;
2008 out[2] = 0;
2009 out[3] = 1;
2010 break;
2011 case GL_RG:
2012 out[0] = in[0];
2013 out[1] = in[1];
2014 out[2] = 0;
2015 out[3] = 1;
2016 break;
2017 case GL_RGB:
2018 out[0] = in[0];
2019 out[1] = in[1];
2020 out[2] = in[2];
2021 out[3] = 1;
2022 break;
2023 case GL_ALPHA:
2024 out[0] = out[1] = out[2] = 0;
2025 out[3] = in[3];
2026 break;
2027 case GL_LUMINANCE:
2028 out[0] = out[1] = out[2] = in[0];
2029 out[3] = 1;
2030 break;
2031 case GL_LUMINANCE_ALPHA:
2032 out[0] = out[1] = out[2] = in[0];
2033 out[3] = in[3];
2034 break;
2035 case GL_INTENSITY:
2036 out[0] = out[1] = out[2] = out[3] = in[0];
2037 break;
2038 default:
2039 COPY_4V(out, in);
2040 }
2041 }
2042 else {
2043 const float *in = colorIn->f;
2044 float *out = colorOut->f;
2045
2046 switch (baseFormat) {
2047 case GL_RED:
2048 out[0] = in[0];
2049 out[1] = 0.0F;
2050 out[2] = 0.0F;
2051 out[3] = 1.0F;
2052 break;
2053 case GL_RG:
2054 out[0] = in[0];
2055 out[1] = in[1];
2056 out[2] = 0.0F;
2057 out[3] = 1.0F;
2058 break;
2059 case GL_RGB:
2060 out[0] = in[0];
2061 out[1] = in[1];
2062 out[2] = in[2];
2063 out[3] = 1.0F;
2064 break;
2065 case GL_ALPHA:
2066 out[0] = out[1] = out[2] = 0.0F;
2067 out[3] = in[3];
2068 break;
2069 case GL_LUMINANCE:
2070 out[0] = out[1] = out[2] = in[0];
2071 out[3] = 1.0F;
2072 break;
2073 case GL_LUMINANCE_ALPHA:
2074 out[0] = out[1] = out[2] = in[0];
2075 out[3] = in[3];
2076 break;
2077 case GL_INTENSITY:
2078 out[0] = out[1] = out[2] = out[3] = in[0];
2079 break;
2080 default:
2081 COPY_4V(out, in);
2082 }
2083 }
2084 }