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mesa/st: add ARB_texture_view support
[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_R8G8B8A8_SRGB, \
883 PIPE_FORMAT_A8R8G8B8_SRGB, \
884 PIPE_FORMAT_A8B8G8R8_SRGB, \
885 0
886
887 #define DEFAULT_DEPTH_FORMATS \
888 PIPE_FORMAT_Z24X8_UNORM, \
889 PIPE_FORMAT_X8Z24_UNORM, \
890 PIPE_FORMAT_Z16_UNORM, \
891 PIPE_FORMAT_Z24_UNORM_S8_UINT, \
892 PIPE_FORMAT_S8_UINT_Z24_UNORM, \
893 0
894
895 #define DEFAULT_SNORM8_RGBA_FORMATS \
896 PIPE_FORMAT_R8G8B8A8_SNORM, \
897 0
898
899 #define DEFAULT_UNORM16_RGBA_FORMATS \
900 PIPE_FORMAT_R16G16B16A16_UNORM, \
901 DEFAULT_RGBA_FORMATS
902
903
904 /**
905 * This table maps OpenGL texture format enums to Gallium pipe_format enums.
906 * Multiple GL enums might map to multiple pipe_formats.
907 * The first pipe format in the list that's supported is the one that's chosen.
908 */
909 static const struct format_mapping format_map[] = {
910 /* Basic RGB, RGBA formats */
911 {
912 { GL_RGB10, 0 },
913 { PIPE_FORMAT_B10G10R10X2_UNORM, PIPE_FORMAT_B10G10R10A2_UNORM,
914 DEFAULT_RGB_FORMATS }
915 },
916 {
917 { GL_RGB10_A2, 0 },
918 { PIPE_FORMAT_B10G10R10A2_UNORM, PIPE_FORMAT_R10G10B10A2_UNORM,
919 DEFAULT_RGBA_FORMATS }
920 },
921 {
922 { 4, GL_RGBA, GL_RGBA8, 0 },
923 { DEFAULT_RGBA_FORMATS }
924 },
925 {
926 { GL_BGRA, 0 },
927 { DEFAULT_RGBA_FORMATS }
928 },
929 {
930 { 3, GL_RGB, GL_RGB8, 0 },
931 { DEFAULT_RGB_FORMATS }
932 },
933 {
934 { GL_RGB12, GL_RGB16, 0 },
935 { PIPE_FORMAT_R16G16B16X16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
936 DEFAULT_RGB_FORMATS }
937 },
938 {
939 { GL_RGBA12, GL_RGBA16, 0 },
940 { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
941 },
942 {
943 { GL_RGBA4, GL_RGBA2, 0 },
944 { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
945 },
946 {
947 { GL_RGB5_A1, 0 },
948 { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
949 },
950 {
951 { GL_R3_G3_B2, 0 },
952 { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
953 PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGB_FORMATS }
954 },
955 {
956 { GL_RGB4 },
957 { PIPE_FORMAT_B4G4R4X4_UNORM, PIPE_FORMAT_B4G4R4A4_UNORM,
958 DEFAULT_RGB_FORMATS }
959 },
960 {
961 { GL_RGB5 },
962 { PIPE_FORMAT_B5G5R5X1_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
963 DEFAULT_RGB_FORMATS }
964 },
965 {
966 { GL_RGB565 },
967 { PIPE_FORMAT_B5G6R5_UNORM, DEFAULT_RGB_FORMATS }
968 },
969
970 /* basic Alpha formats */
971 {
972 { GL_ALPHA12, GL_ALPHA16, 0 },
973 { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
974 DEFAULT_RGBA_FORMATS }
975 },
976 {
977 { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
978 { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
979 },
980
981 /* basic Luminance formats */
982 {
983 { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
984 { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
985 },
986 {
987 { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
988 { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
989 },
990
991 /* basic Luminance/Alpha formats */
992 {
993 { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
994 GL_LUMINANCE16_ALPHA16, 0},
995 { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
996 DEFAULT_RGBA_FORMATS }
997 },
998 {
999 { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
1000 { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1001 },
1002 {
1003 { GL_LUMINANCE4_ALPHA4, 0 },
1004 { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
1005 DEFAULT_RGBA_FORMATS }
1006 },
1007
1008 /* basic Intensity formats */
1009 {
1010 { GL_INTENSITY12, GL_INTENSITY16, 0 },
1011 { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1012 },
1013 {
1014 { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
1015 GL_COMPRESSED_INTENSITY, 0 },
1016 { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1017 },
1018
1019 /* YCbCr */
1020 {
1021 { GL_YCBCR_MESA, 0 },
1022 { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
1023 },
1024
1025 /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
1026 {
1027 { GL_COMPRESSED_RGB, 0 },
1028 { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
1029 },
1030 {
1031 { GL_COMPRESSED_RGBA, 0 },
1032 { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
1033 },
1034 {
1035 { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
1036 { PIPE_FORMAT_DXT1_RGB, 0 }
1037 },
1038 {
1039 { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
1040 { PIPE_FORMAT_DXT1_RGBA, 0 }
1041 },
1042 {
1043 { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
1044 { PIPE_FORMAT_DXT3_RGBA, 0 }
1045 },
1046 {
1047 { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
1048 { PIPE_FORMAT_DXT5_RGBA, 0 }
1049 },
1050
1051 #if 0
1052 {
1053 { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
1054 { PIPE_FORMAT_RGB_FXT1, 0 }
1055 },
1056 {
1057 { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
1058 { PIPE_FORMAT_RGBA_FXT1, 0 }
1059 },
1060 #endif
1061
1062 /* Depth formats */
1063 {
1064 { GL_DEPTH_COMPONENT16, 0 },
1065 { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
1066 },
1067 {
1068 { GL_DEPTH_COMPONENT24, 0 },
1069 { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
1070 DEFAULT_DEPTH_FORMATS }
1071 },
1072 {
1073 { GL_DEPTH_COMPONENT32, 0 },
1074 { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
1075 },
1076 {
1077 { GL_DEPTH_COMPONENT, 0 },
1078 { DEFAULT_DEPTH_FORMATS }
1079 },
1080 {
1081 { GL_DEPTH_COMPONENT32F, 0 },
1082 { PIPE_FORMAT_Z32_FLOAT, 0 }
1083 },
1084
1085 /* stencil formats */
1086 {
1087 { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
1088 GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
1089 {
1090 PIPE_FORMAT_S8_UINT, PIPE_FORMAT_Z24_UNORM_S8_UINT,
1091 PIPE_FORMAT_S8_UINT_Z24_UNORM, 0
1092 }
1093 },
1094
1095 /* Depth / Stencil formats */
1096 {
1097 { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
1098 { PIPE_FORMAT_Z24_UNORM_S8_UINT, PIPE_FORMAT_S8_UINT_Z24_UNORM, 0 }
1099 },
1100 {
1101 { GL_DEPTH32F_STENCIL8, 0 },
1102 { PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, 0 }
1103 },
1104
1105 /* sRGB formats */
1106 {
1107 { GL_SRGB_EXT, GL_SRGB8_EXT, 0 },
1108 { PIPE_FORMAT_R8G8B8X8_SRGB, PIPE_FORMAT_B8G8R8X8_SRGB,
1109 DEFAULT_SRGBA_FORMATS }
1110 },
1111 {
1112 { GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
1113 { DEFAULT_SRGBA_FORMATS }
1114 },
1115 {
1116 { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
1117 { PIPE_FORMAT_DXT1_SRGB, PIPE_FORMAT_R8G8B8X8_SRGB,
1118 PIPE_FORMAT_B8G8R8X8_SRGB, DEFAULT_SRGBA_FORMATS }
1119 },
1120 {
1121 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
1122 { PIPE_FORMAT_DXT1_SRGBA, 0 }
1123 },
1124 {
1125 { GL_COMPRESSED_SRGB_ALPHA_EXT,
1126 GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
1127 { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
1128 },
1129 {
1130 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
1131 { PIPE_FORMAT_DXT5_SRGBA, 0 }
1132 },
1133 {
1134 { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
1135 GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
1136 { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
1137 },
1138 {
1139 { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, GL_COMPRESSED_SLUMINANCE_EXT,
1140 0 },
1141 { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
1142 },
1143
1144 /* 16-bit float formats */
1145 {
1146 { GL_RGBA16F_ARB, 0 },
1147 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1148 },
1149 {
1150 { GL_RGB16F_ARB, 0 },
1151 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16X16_FLOAT,
1152 PIPE_FORMAT_R16G16B16A16_FLOAT,
1153 PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1154 },
1155 {
1156 { GL_LUMINANCE_ALPHA16F_ARB, 0 },
1157 { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1158 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1159 },
1160 {
1161 { GL_ALPHA16F_ARB, 0 },
1162 { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1163 PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1164 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1165 },
1166 {
1167 { GL_INTENSITY16F_ARB, 0 },
1168 { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1169 PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1170 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1171 },
1172 {
1173 { GL_LUMINANCE16F_ARB, 0 },
1174 { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1175 PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1176 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1177 },
1178 {
1179 { GL_R16F, 0 },
1180 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
1181 PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1182 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1183 },
1184 {
1185 { GL_RG16F, 0 },
1186 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1187 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1188 },
1189
1190 /* 32-bit float formats */
1191 {
1192 { GL_RGBA32F_ARB, 0 },
1193 { PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1194 },
1195 {
1196 { GL_RGB32F_ARB, 0 },
1197 { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32X32_FLOAT,
1198 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1199 },
1200 {
1201 { GL_LUMINANCE_ALPHA32F_ARB, 0 },
1202 { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1203 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1204 },
1205 {
1206 { GL_ALPHA32F_ARB, 0 },
1207 { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1208 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_A16_FLOAT,
1209 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1210 },
1211 {
1212 { GL_INTENSITY32F_ARB, 0 },
1213 { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1214 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_I16_FLOAT,
1215 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1216 },
1217 {
1218 { GL_LUMINANCE32F_ARB, 0 },
1219 { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1220 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_L16_FLOAT,
1221 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1222 },
1223 {
1224 { GL_R32F, 0 },
1225 { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
1226 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16_FLOAT,
1227 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1228 },
1229 {
1230 { GL_RG32F, 0 },
1231 { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
1232 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
1233 },
1234
1235 /* R, RG formats */
1236 {
1237 { GL_RED, GL_R8, 0 },
1238 { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1239 },
1240 {
1241 { GL_RG, GL_RG8, 0 },
1242 { PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1243 },
1244 {
1245 { GL_R16, 0 },
1246 { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R16G16_UNORM,
1247 DEFAULT_UNORM16_RGBA_FORMATS }
1248 },
1249 {
1250 { GL_RG16, 0 },
1251 { PIPE_FORMAT_R16G16_UNORM, DEFAULT_UNORM16_RGBA_FORMATS }
1252 },
1253
1254 /* compressed R, RG formats */
1255 {
1256 { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
1257 { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, DEFAULT_RGBA_FORMATS }
1258 },
1259 {
1260 { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
1261 { PIPE_FORMAT_RGTC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1262 },
1263 {
1264 { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
1265 { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1266 },
1267 {
1268 { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
1269 { PIPE_FORMAT_RGTC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1270 },
1271 {
1272 { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
1273 { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
1274 },
1275 {
1276 { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
1277 { PIPE_FORMAT_LATC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1278 },
1279 {
1280 { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
1281 GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
1282 { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1283 },
1284 {
1285 { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
1286 { PIPE_FORMAT_LATC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1287 },
1288
1289 /* ETC1 */
1290 {
1291 { GL_ETC1_RGB8_OES, 0 },
1292 { PIPE_FORMAT_ETC1_RGB8, 0 }
1293 },
1294
1295 /* BPTC */
1296 {
1297 { GL_COMPRESSED_RGBA_BPTC_UNORM, 0 },
1298 { PIPE_FORMAT_BPTC_RGBA_UNORM, 0 },
1299 },
1300 {
1301 { GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, 0 },
1302 { PIPE_FORMAT_BPTC_SRGBA, 0 },
1303 },
1304 {
1305 { GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, 0 },
1306 { PIPE_FORMAT_BPTC_RGB_FLOAT, 0 },
1307 },
1308 {
1309 { GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, 0 },
1310 { PIPE_FORMAT_BPTC_RGB_UFLOAT, 0 },
1311 },
1312
1313 /* signed/unsigned integer formats.
1314 */
1315 {
1316 { GL_RGBA_INTEGER_EXT,
1317 GL_BGRA_INTEGER_EXT,
1318 GL_RGBA8I_EXT, 0 },
1319 { PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1320 },
1321 {
1322 { GL_RGB_INTEGER_EXT,
1323 GL_BGR_INTEGER_EXT,
1324 GL_RGB8I_EXT,
1325 GL_BLUE_INTEGER_EXT, 0 },
1326 { PIPE_FORMAT_R8G8B8_SINT, PIPE_FORMAT_R8G8B8X8_SINT,
1327 PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1328 },
1329 {
1330 { GL_ALPHA_INTEGER_EXT,
1331 GL_ALPHA8I_EXT, 0 },
1332 { PIPE_FORMAT_A8_SINT, 0 }
1333 },
1334 {
1335 { GL_ALPHA16I_EXT, 0 },
1336 { PIPE_FORMAT_A16_SINT, 0 }
1337 },
1338 {
1339 { GL_ALPHA32I_EXT, 0 },
1340 { PIPE_FORMAT_A32_SINT, 0 }
1341 },
1342 {
1343 { GL_ALPHA8UI_EXT, 0 },
1344 { PIPE_FORMAT_A8_UINT, 0 }
1345 },
1346 {
1347 { GL_ALPHA16UI_EXT, 0 },
1348 { PIPE_FORMAT_A16_UINT, 0 }
1349 },
1350 {
1351 { GL_ALPHA32UI_EXT, 0 },
1352 { PIPE_FORMAT_A32_UINT, 0 }
1353 },
1354 {
1355 { GL_INTENSITY8I_EXT, 0 },
1356 { PIPE_FORMAT_I8_SINT, 0 }
1357 },
1358 {
1359 { GL_INTENSITY16I_EXT, 0 },
1360 { PIPE_FORMAT_I16_SINT, 0 }
1361 },
1362 {
1363 { GL_INTENSITY32I_EXT, 0 },
1364 { PIPE_FORMAT_I32_SINT, 0 }
1365 },
1366 {
1367 { GL_INTENSITY8UI_EXT, 0 },
1368 { PIPE_FORMAT_I8_UINT, 0 }
1369 },
1370 {
1371 { GL_INTENSITY16UI_EXT, 0 },
1372 { PIPE_FORMAT_I16_UINT, 0 }
1373 },
1374 {
1375 { GL_INTENSITY32UI_EXT, 0 },
1376 { PIPE_FORMAT_I32_UINT, 0 }
1377 },
1378 {
1379 { GL_LUMINANCE8I_EXT, 0 },
1380 { PIPE_FORMAT_L8_SINT, 0 }
1381 },
1382 {
1383 { GL_LUMINANCE16I_EXT, 0 },
1384 { PIPE_FORMAT_L16_SINT, 0 }
1385 },
1386 {
1387 { GL_LUMINANCE32I_EXT, 0 },
1388 { PIPE_FORMAT_L32_SINT, 0 }
1389 },
1390 {
1391 { GL_LUMINANCE_INTEGER_EXT,
1392 GL_LUMINANCE8UI_EXT, 0 },
1393 { PIPE_FORMAT_L8_UINT, 0 }
1394 },
1395 {
1396 { GL_LUMINANCE16UI_EXT, 0 },
1397 { PIPE_FORMAT_L16_UINT, 0 }
1398 },
1399 {
1400 { GL_LUMINANCE32UI_EXT, 0 },
1401 { PIPE_FORMAT_L32_UINT, 0 }
1402 },
1403 {
1404 { GL_LUMINANCE_ALPHA_INTEGER_EXT,
1405 GL_LUMINANCE_ALPHA8I_EXT, 0 },
1406 { PIPE_FORMAT_L8A8_SINT, 0 }
1407 },
1408 {
1409 { GL_LUMINANCE_ALPHA16I_EXT, 0 },
1410 { PIPE_FORMAT_L16A16_SINT, 0 }
1411 },
1412 {
1413 { GL_LUMINANCE_ALPHA32I_EXT, 0 },
1414 { PIPE_FORMAT_L32A32_SINT, 0 }
1415 },
1416 {
1417 { GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1418 { PIPE_FORMAT_L8A8_UINT, 0 }
1419 },
1420 {
1421 { GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1422 { PIPE_FORMAT_L16A16_UINT, 0 }
1423 },
1424 {
1425 { GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1426 { PIPE_FORMAT_L32A32_UINT, 0 }
1427 },
1428 {
1429 { GL_RGB16I_EXT, 0 },
1430 { PIPE_FORMAT_R16G16B16_SINT, PIPE_FORMAT_R16G16B16X16_SINT,
1431 PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1432 },
1433 {
1434 { GL_RGBA16I_EXT, 0 },
1435 { PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1436 },
1437 {
1438 { GL_RGB32I_EXT, 0 },
1439 { PIPE_FORMAT_R32G32B32_SINT, PIPE_FORMAT_R32G32B32X32_SINT,
1440 PIPE_FORMAT_R32G32B32A32_SINT, 0 },
1441 },
1442 {
1443 { GL_RGBA32I_EXT, 0 },
1444 { PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1445 },
1446 {
1447 { GL_RGBA8UI_EXT, 0 },
1448 { PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1449 },
1450 {
1451 { GL_RGB8UI_EXT, 0 },
1452 { PIPE_FORMAT_R8G8B8_UINT, PIPE_FORMAT_R8G8B8X8_UINT,
1453 PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1454 },
1455 {
1456 { GL_RGB16UI_EXT, 0 },
1457 { PIPE_FORMAT_R16G16B16_UINT, PIPE_FORMAT_R16G16B16X16_UINT,
1458 PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1459 },
1460 {
1461 { GL_RGBA16UI_EXT, 0 },
1462 { PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1463 },
1464 {
1465 { GL_RGB32UI_EXT, 0},
1466 { PIPE_FORMAT_R32G32B32_UINT, PIPE_FORMAT_R32G32B32X32_UINT,
1467 PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1468 },
1469 {
1470 { GL_RGBA32UI_EXT, 0},
1471 { PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1472 },
1473 {
1474 { GL_R8I, GL_RED_INTEGER_EXT, 0},
1475 { PIPE_FORMAT_R8_SINT, 0},
1476 },
1477 {
1478 { GL_R16I, 0},
1479 { PIPE_FORMAT_R16_SINT, 0},
1480 },
1481 {
1482 { GL_R32I, 0},
1483 { PIPE_FORMAT_R32_SINT, 0},
1484 },
1485 {
1486 { GL_R8UI, 0},
1487 { PIPE_FORMAT_R8_UINT, 0},
1488 },
1489 {
1490 { GL_R16UI, 0},
1491 { PIPE_FORMAT_R16_UINT, 0},
1492 },
1493 {
1494 { GL_R32UI, 0},
1495 { PIPE_FORMAT_R32_UINT, 0},
1496 },
1497 {
1498 { GL_RG8I, GL_GREEN_INTEGER_EXT, 0},
1499 { PIPE_FORMAT_R8G8_SINT, 0},
1500 },
1501 {
1502 { GL_RG16I, 0},
1503 { PIPE_FORMAT_R16G16_SINT, 0},
1504 },
1505 {
1506 { GL_RG32I, 0},
1507 { PIPE_FORMAT_R32G32_SINT, 0},
1508 },
1509 {
1510 { GL_RG8UI, 0},
1511 { PIPE_FORMAT_R8G8_UINT, 0},
1512 },
1513 {
1514 { GL_RG16UI, 0},
1515 { PIPE_FORMAT_R16G16_UINT, 0},
1516 },
1517 {
1518 { GL_RG32UI, 0},
1519 { PIPE_FORMAT_R32G32_UINT, 0},
1520 },
1521 /* signed normalized formats */
1522 {
1523 { GL_RED_SNORM, GL_R8_SNORM, 0 },
1524 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1525 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1526 },
1527 {
1528 { GL_R16_SNORM, 0 },
1529 { PIPE_FORMAT_R16_SNORM,
1530 PIPE_FORMAT_R16G16_SNORM,
1531 PIPE_FORMAT_R16G16B16A16_SNORM,
1532 PIPE_FORMAT_R8_SNORM,
1533 PIPE_FORMAT_R8G8_SNORM,
1534 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1535 },
1536 {
1537 { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1538 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1539 },
1540 {
1541 { GL_RG16_SNORM, 0 },
1542 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1543 PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1544 },
1545 {
1546 { GL_RGB_SNORM, GL_RGB8_SNORM, 0 },
1547 { PIPE_FORMAT_R8G8B8X8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1548 },
1549 {
1550 { GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1551 { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1552 },
1553 {
1554 { GL_RGB16_SNORM, 0 },
1555 { PIPE_FORMAT_R16G16B16X16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1556 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1557 },
1558 {
1559 { GL_RGBA16_SNORM, 0 },
1560 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1561 },
1562 {
1563 { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1564 { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1565 },
1566 {
1567 { GL_ALPHA16_SNORM, 0 },
1568 { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1569 PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1570 },
1571 {
1572 { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1573 { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1574 },
1575 {
1576 { GL_LUMINANCE16_SNORM, 0 },
1577 { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1578 PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1579 },
1580 {
1581 { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1582 { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1583 },
1584 {
1585 { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
1586 { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1587 PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1588 },
1589 {
1590 { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
1591 { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1592 },
1593 {
1594 { GL_INTENSITY16_SNORM, 0 },
1595 { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1596 PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1597 },
1598 {
1599 { GL_RGB9_E5, 0 },
1600 { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
1601 },
1602 {
1603 { GL_R11F_G11F_B10F, 0 },
1604 { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
1605 },
1606 {
1607 { GL_RGB10_A2UI, 0 },
1608 { PIPE_FORMAT_R10G10B10A2_UINT, PIPE_FORMAT_B10G10R10A2_UINT, 0 }
1609 },
1610 };
1611
1612
1613 /**
1614 * Return first supported format from the given list.
1615 * \param allow_dxt indicates whether it's OK to return a DXT format.
1616 */
1617 static enum pipe_format
1618 find_supported_format(struct pipe_screen *screen,
1619 const enum pipe_format formats[],
1620 enum pipe_texture_target target,
1621 unsigned sample_count,
1622 unsigned tex_usage,
1623 boolean allow_dxt)
1624 {
1625 uint i;
1626 for (i = 0; formats[i]; i++) {
1627 if (screen->is_format_supported(screen, formats[i], target,
1628 sample_count, tex_usage)) {
1629 if (!allow_dxt && util_format_is_s3tc(formats[i])) {
1630 /* we can't return a dxt format, continue searching */
1631 continue;
1632 }
1633
1634 return formats[i];
1635 }
1636 }
1637 return PIPE_FORMAT_NONE;
1638 }
1639
1640 struct exact_format_mapping
1641 {
1642 GLenum format;
1643 GLenum type;
1644 enum pipe_format pformat;
1645 };
1646
1647 static const struct exact_format_mapping rgba8888_tbl[] =
1648 {
1649 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ABGR8888_UNORM },
1650 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_ABGR8888_UNORM },
1651 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBA8888_UNORM },
1652 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBA8888_UNORM },
1653 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ARGB8888_UNORM },
1654 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRA8888_UNORM },
1655 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
1656 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
1657 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
1658 { 0, 0, 0 }
1659 };
1660
1661 static const struct exact_format_mapping rgbx8888_tbl[] =
1662 {
1663 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XBGR8888_UNORM },
1664 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_XBGR8888_UNORM },
1665 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBX8888_UNORM },
1666 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBX8888_UNORM },
1667 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XRGB8888_UNORM },
1668 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRX8888_UNORM },
1669 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
1670 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
1671 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
1672 { 0, 0, 0 }
1673 };
1674
1675 static const struct exact_format_mapping rgba1010102_tbl[] =
1676 {
1677 { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
1678 /* No Mesa formats for these Gallium formats:
1679 { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
1680 { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
1681 { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
1682 */
1683 { 0, 0, 0 }
1684 };
1685
1686 /**
1687 * If there is an exact pipe_format match for {internalFormat, format, type}
1688 * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
1689 */
1690 static enum pipe_format
1691 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
1692 {
1693 uint i;
1694 const struct exact_format_mapping* tbl;
1695
1696 if (format == GL_NONE || type == GL_NONE)
1697 return PIPE_FORMAT_NONE;
1698
1699 switch (internalFormat) {
1700 case 4:
1701 case GL_RGBA:
1702 case GL_RGBA8:
1703 tbl = rgba8888_tbl;
1704 break;
1705 case 3:
1706 case GL_RGB:
1707 case GL_RGB8:
1708 tbl = rgbx8888_tbl;
1709 break;
1710 case GL_RGB10_A2:
1711 tbl = rgba1010102_tbl;
1712 break;
1713 default:
1714 return PIPE_FORMAT_NONE;
1715 }
1716
1717 for (i = 0; tbl[i].format; i++)
1718 if (tbl[i].format == format && tbl[i].type == type)
1719 return tbl[i].pformat;
1720
1721 return PIPE_FORMAT_NONE;
1722 }
1723
1724 /**
1725 * Given an OpenGL internalFormat value for a texture or surface, return
1726 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
1727 * This is called during glTexImage2D, for example.
1728 *
1729 * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
1730 * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
1731 * we want render-to-texture ability.
1732 *
1733 * \param internalFormat the user value passed to glTexImage2D
1734 * \param target one of PIPE_TEXTURE_x
1735 * \param bindings bitmask of PIPE_BIND_x flags.
1736 * \param allow_dxt indicates whether it's OK to return a DXT format. This
1737 * only matters when internalFormat names a generic or
1738 * specific compressed format. And that should only happen
1739 * when we're getting called from gl[Copy]TexImage().
1740 */
1741 enum pipe_format
1742 st_choose_format(struct st_context *st, GLenum internalFormat,
1743 GLenum format, GLenum type,
1744 enum pipe_texture_target target, unsigned sample_count,
1745 unsigned bindings, boolean allow_dxt)
1746 {
1747 struct pipe_screen *screen = st->pipe->screen;
1748 int i, j;
1749 enum pipe_format pf;
1750
1751 #ifdef DEBUG
1752 {
1753 static boolean firstCall = TRUE;
1754 if (firstCall) {
1755 test_format_conversion(st);
1756 firstCall = FALSE;
1757 }
1758 }
1759 #else
1760 (void) test_format_conversion;
1761 #endif
1762
1763 /* can't render to compressed formats at this time */
1764 if (_mesa_is_compressed_format(st->ctx, internalFormat)
1765 && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
1766 return PIPE_FORMAT_NONE;
1767 }
1768
1769 /* search for exact matches */
1770 pf = find_exact_format(internalFormat, format, type);
1771 if (pf != PIPE_FORMAT_NONE &&
1772 screen->is_format_supported(screen, pf,
1773 target, sample_count, bindings))
1774 return pf;
1775
1776 /* search table for internalFormat */
1777 for (i = 0; i < Elements(format_map); i++) {
1778 const struct format_mapping *mapping = &format_map[i];
1779 for (j = 0; mapping->glFormats[j]; j++) {
1780 if (mapping->glFormats[j] == internalFormat) {
1781 /* Found the desired internal format. Find first pipe format
1782 * which is supported by the driver.
1783 */
1784 return find_supported_format(screen, mapping->pipeFormats,
1785 target, sample_count, bindings,
1786 allow_dxt);
1787 }
1788 }
1789 }
1790
1791 _mesa_problem(NULL, "unhandled format!\n");
1792 return PIPE_FORMAT_NONE;
1793 }
1794
1795
1796 /**
1797 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
1798 */
1799 enum pipe_format
1800 st_choose_renderbuffer_format(struct st_context *st,
1801 GLenum internalFormat, unsigned sample_count)
1802 {
1803 uint usage;
1804 if (_mesa_is_depth_or_stencil_format(internalFormat))
1805 usage = PIPE_BIND_DEPTH_STENCIL;
1806 else
1807 usage = PIPE_BIND_RENDER_TARGET;
1808 return st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
1809 PIPE_TEXTURE_2D, sample_count, usage, FALSE);
1810 }
1811
1812
1813 /**
1814 * Given an OpenGL user-requested format and type, and swapBytes state,
1815 * return the format which exactly matches those parameters, so that
1816 * a memcpy-based transfer can be done.
1817 *
1818 * If no format is supported, return PIPE_FORMAT_NONE.
1819 */
1820 enum pipe_format
1821 st_choose_matching_format(struct st_context *st, unsigned bind,
1822 GLenum format, GLenum type, GLboolean swapBytes)
1823 {
1824 struct pipe_screen *screen = st->pipe->screen;
1825 mesa_format mesa_format;
1826
1827 for (mesa_format = 1; mesa_format < MESA_FORMAT_COUNT; mesa_format++) {
1828 if (_mesa_get_format_color_encoding(mesa_format) == GL_SRGB) {
1829 continue;
1830 }
1831 if (_mesa_get_format_bits(mesa_format, GL_TEXTURE_INTENSITY_SIZE) > 0) {
1832 /* If `format` is GL_RED/GL_RED_INTEGER, then we might match some
1833 * intensity formats, which we don't want.
1834 */
1835 continue;
1836 }
1837
1838 if (_mesa_format_matches_format_and_type(mesa_format, format, type,
1839 swapBytes)) {
1840 enum pipe_format format =
1841 st_mesa_format_to_pipe_format(st, mesa_format);
1842
1843 if (format &&
1844 screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0,
1845 bind)) {
1846 return format;
1847 }
1848 /* It's unlikely to find 2 matching Mesa formats. */
1849 break;
1850 }
1851 }
1852 return PIPE_FORMAT_NONE;
1853 }
1854
1855
1856 /**
1857 * Called via ctx->Driver.ChooseTextureFormat().
1858 */
1859 mesa_format
1860 st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
1861 GLint internalFormat,
1862 GLenum format, GLenum type)
1863 {
1864 const boolean want_renderable =
1865 internalFormat == 3 || internalFormat == 4 ||
1866 internalFormat == GL_RGB || internalFormat == GL_RGBA ||
1867 internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
1868 internalFormat == GL_BGRA;
1869 struct st_context *st = st_context(ctx);
1870 enum pipe_format pFormat;
1871 unsigned bindings;
1872 enum pipe_texture_target pTarget = gl_target_to_pipe(target);
1873
1874 if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
1875 /* We don't do compression for these texture targets because of
1876 * difficulty with sub-texture updates on non-block boundaries, etc.
1877 * So change the internal format request to an uncompressed format.
1878 */
1879 internalFormat =
1880 _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
1881 }
1882
1883 /* GL textures may wind up being render targets, but we don't know
1884 * that in advance. Specify potential render target flags now.
1885 */
1886 bindings = PIPE_BIND_SAMPLER_VIEW;
1887 if (want_renderable) {
1888 if (_mesa_is_depth_or_stencil_format(internalFormat))
1889 bindings |= PIPE_BIND_DEPTH_STENCIL;
1890 else
1891 bindings |= PIPE_BIND_RENDER_TARGET;
1892 }
1893
1894 /* GLES allows the driver to choose any format which matches
1895 * the format+type combo, because GLES only supports unsized internal
1896 * formats and expects the driver to choose whatever suits it.
1897 */
1898 if (_mesa_is_gles(ctx)) {
1899 GLenum baseFormat = _mesa_base_tex_format(ctx, internalFormat);
1900 GLenum basePackFormat = _mesa_base_pack_format(format);
1901 GLenum iformat = internalFormat;
1902
1903 /* Treat GL_BGRA as GL_RGBA. */
1904 if (iformat == GL_BGRA)
1905 iformat = GL_RGBA;
1906
1907 /* Check if the internalformat is unsized and compatible
1908 * with the "format".
1909 */
1910 if (iformat == baseFormat && iformat == basePackFormat) {
1911 pFormat = st_choose_matching_format(st, bindings, format, type,
1912 ctx->Unpack.SwapBytes);
1913
1914 if (pFormat != PIPE_FORMAT_NONE)
1915 return st_pipe_format_to_mesa_format(pFormat);
1916
1917 /* try choosing format again, this time without render target bindings */
1918 pFormat = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW,
1919 format, type,
1920 ctx->Unpack.SwapBytes);
1921 if (pFormat != PIPE_FORMAT_NONE)
1922 return st_pipe_format_to_mesa_format(pFormat);
1923 }
1924 }
1925
1926 pFormat = st_choose_format(st, internalFormat, format, type,
1927 pTarget, 0, bindings, ctx->Mesa_DXTn);
1928
1929 if (pFormat == PIPE_FORMAT_NONE) {
1930 /* try choosing format again, this time without render target bindings */
1931 pFormat = st_choose_format(st, internalFormat, format, type,
1932 pTarget, 0, PIPE_BIND_SAMPLER_VIEW,
1933 ctx->Mesa_DXTn);
1934 }
1935
1936 if (pFormat == PIPE_FORMAT_NONE) {
1937 /* no luck at all */
1938 return MESA_FORMAT_NONE;
1939 }
1940
1941 return st_pipe_format_to_mesa_format(pFormat);
1942 }
1943
1944
1945 /**
1946 * Called via ctx->Driver.ChooseTextureFormat().
1947 */
1948 size_t
1949 st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
1950 GLenum internalFormat, int samples[16])
1951 {
1952 struct st_context *st = st_context(ctx);
1953 enum pipe_format format;
1954 unsigned i, bind, num_sample_counts = 0;
1955
1956 (void) target;
1957
1958 if (_mesa_is_depth_or_stencil_format(internalFormat))
1959 bind = PIPE_BIND_DEPTH_STENCIL;
1960 else
1961 bind = PIPE_BIND_RENDER_TARGET;
1962
1963 /* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
1964 * formats.
1965 */
1966 if (!ctx->Extensions.EXT_framebuffer_sRGB) {
1967 internalFormat = _mesa_get_linear_internalformat(internalFormat);
1968 }
1969
1970 /* Set sample counts in descending order. */
1971 for (i = 16; i > 1; i--) {
1972 format = st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
1973 PIPE_TEXTURE_2D, i, bind, FALSE);
1974
1975 if (format != PIPE_FORMAT_NONE) {
1976 samples[num_sample_counts++] = i;
1977 }
1978 }
1979
1980 if (!num_sample_counts) {
1981 samples[num_sample_counts++] = 1;
1982 }
1983
1984 return num_sample_counts;
1985 }
1986
1987
1988 /**
1989 * This is used for translating texture border color and the clear
1990 * color. For example, the clear color is interpreted according to
1991 * the renderbuffer's base format. For example, if clearing a
1992 * GL_LUMINANCE buffer, we'll return colorOut[0] = colorOut[1] =
1993 * colorOut[2] = colorIn[0].
1994 * Similarly for texture border colors.
1995 */
1996 void
1997 st_translate_color(const union gl_color_union *colorIn,
1998 union pipe_color_union *colorOut,
1999 GLenum baseFormat, GLboolean is_integer)
2000 {
2001 if (is_integer) {
2002 const int *in = colorIn->i;
2003 int *out = colorOut->i;
2004
2005 switch (baseFormat) {
2006 case GL_RED:
2007 out[0] = in[0];
2008 out[1] = 0;
2009 out[2] = 0;
2010 out[3] = 1;
2011 break;
2012 case GL_RG:
2013 out[0] = in[0];
2014 out[1] = in[1];
2015 out[2] = 0;
2016 out[3] = 1;
2017 break;
2018 case GL_RGB:
2019 out[0] = in[0];
2020 out[1] = in[1];
2021 out[2] = in[2];
2022 out[3] = 1;
2023 break;
2024 case GL_ALPHA:
2025 out[0] = out[1] = out[2] = 0;
2026 out[3] = in[3];
2027 break;
2028 case GL_LUMINANCE:
2029 out[0] = out[1] = out[2] = in[0];
2030 out[3] = 1;
2031 break;
2032 case GL_LUMINANCE_ALPHA:
2033 out[0] = out[1] = out[2] = in[0];
2034 out[3] = in[3];
2035 break;
2036 case GL_INTENSITY:
2037 out[0] = out[1] = out[2] = out[3] = in[0];
2038 break;
2039 default:
2040 COPY_4V(out, in);
2041 }
2042 }
2043 else {
2044 const float *in = colorIn->f;
2045 float *out = colorOut->f;
2046
2047 switch (baseFormat) {
2048 case GL_RED:
2049 out[0] = in[0];
2050 out[1] = 0.0F;
2051 out[2] = 0.0F;
2052 out[3] = 1.0F;
2053 break;
2054 case GL_RG:
2055 out[0] = in[0];
2056 out[1] = in[1];
2057 out[2] = 0.0F;
2058 out[3] = 1.0F;
2059 break;
2060 case GL_RGB:
2061 out[0] = in[0];
2062 out[1] = in[1];
2063 out[2] = in[2];
2064 out[3] = 1.0F;
2065 break;
2066 case GL_ALPHA:
2067 out[0] = out[1] = out[2] = 0.0F;
2068 out[3] = in[3];
2069 break;
2070 case GL_LUMINANCE:
2071 out[0] = out[1] = out[2] = in[0];
2072 out[3] = 1.0F;
2073 break;
2074 case GL_LUMINANCE_ALPHA:
2075 out[0] = out[1] = out[2] = in[0];
2076 out[3] = in[3];
2077 break;
2078 case GL_INTENSITY:
2079 out[0] = out[1] = out[2] = out[3] = in[0];
2080 break;
2081 default:
2082 COPY_4V(out, in);
2083 }
2084 }
2085 }