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st/mesa: add some debugging code in st_ChooseTextureFormat()
[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/enums.h"
38 #include "main/formats.h"
39 #include "main/glformats.h"
40 #include "main/texgetimage.h"
41 #include "main/teximage.h"
42 #include "main/texstore.h"
43 #include "main/image.h"
44 #include "main/macros.h"
45
46 #include "pipe/p_context.h"
47 #include "pipe/p_defines.h"
48 #include "pipe/p_screen.h"
49 #include "util/u_format.h"
50 #include "st_cb_texture.h"
51 #include "st_context.h"
52 #include "st_format.h"
53
54
55 /**
56 * Translate Mesa format to Gallium format.
57 */
58 enum pipe_format
59 st_mesa_format_to_pipe_format(struct st_context *st, mesa_format mesaFormat)
60 {
61 switch (mesaFormat) {
62 case MESA_FORMAT_A8B8G8R8_UNORM:
63 return PIPE_FORMAT_ABGR8888_UNORM;
64 case MESA_FORMAT_R8G8B8A8_UNORM:
65 return PIPE_FORMAT_RGBA8888_UNORM;
66 case MESA_FORMAT_B8G8R8A8_UNORM:
67 return PIPE_FORMAT_BGRA8888_UNORM;
68 case MESA_FORMAT_A8R8G8B8_UNORM:
69 return PIPE_FORMAT_ARGB8888_UNORM;
70 case MESA_FORMAT_X8B8G8R8_UNORM:
71 return PIPE_FORMAT_XBGR8888_UNORM;
72 case MESA_FORMAT_R8G8B8X8_UNORM:
73 return PIPE_FORMAT_RGBX8888_UNORM;
74 case MESA_FORMAT_B8G8R8X8_UNORM:
75 return PIPE_FORMAT_BGRX8888_UNORM;
76 case MESA_FORMAT_X8R8G8B8_UNORM:
77 return PIPE_FORMAT_XRGB8888_UNORM;
78 case MESA_FORMAT_B5G5R5A1_UNORM:
79 return PIPE_FORMAT_B5G5R5A1_UNORM;
80 case MESA_FORMAT_B4G4R4A4_UNORM:
81 return PIPE_FORMAT_B4G4R4A4_UNORM;
82 case MESA_FORMAT_B5G6R5_UNORM:
83 return PIPE_FORMAT_B5G6R5_UNORM;
84 case MESA_FORMAT_B2G3R3_UNORM:
85 return PIPE_FORMAT_B2G3R3_UNORM;
86 case MESA_FORMAT_B10G10R10A2_UNORM:
87 return PIPE_FORMAT_B10G10R10A2_UNORM;
88 case MESA_FORMAT_R10G10B10A2_UNORM:
89 return PIPE_FORMAT_R10G10B10A2_UNORM;
90 case MESA_FORMAT_L4A4_UNORM:
91 return PIPE_FORMAT_L4A4_UNORM;
92 case MESA_FORMAT_L8A8_UNORM:
93 return PIPE_FORMAT_LA88_UNORM;
94 case MESA_FORMAT_A8L8_UNORM:
95 return PIPE_FORMAT_AL88_UNORM;
96 case MESA_FORMAT_L16A16_UNORM:
97 return PIPE_FORMAT_LA1616_UNORM;
98 case MESA_FORMAT_A16L16_UNORM:
99 return PIPE_FORMAT_AL1616_UNORM;
100 case MESA_FORMAT_A_UNORM8:
101 return PIPE_FORMAT_A8_UNORM;
102 case MESA_FORMAT_A_UNORM16:
103 return PIPE_FORMAT_A16_UNORM;
104 case MESA_FORMAT_L_UNORM8:
105 return PIPE_FORMAT_L8_UNORM;
106 case MESA_FORMAT_L_UNORM16:
107 return PIPE_FORMAT_L16_UNORM;
108 case MESA_FORMAT_I_UNORM8:
109 return PIPE_FORMAT_I8_UNORM;
110 case MESA_FORMAT_I_UNORM16:
111 return PIPE_FORMAT_I16_UNORM;
112 case MESA_FORMAT_Z_UNORM16:
113 return PIPE_FORMAT_Z16_UNORM;
114 case MESA_FORMAT_Z_UNORM32:
115 return PIPE_FORMAT_Z32_UNORM;
116 case MESA_FORMAT_S8_UINT_Z24_UNORM:
117 return PIPE_FORMAT_S8_UINT_Z24_UNORM;
118 case MESA_FORMAT_Z24_UNORM_S8_UINT:
119 return PIPE_FORMAT_Z24_UNORM_S8_UINT;
120 case MESA_FORMAT_X8_UINT_Z24_UNORM:
121 return PIPE_FORMAT_X8Z24_UNORM;
122 case MESA_FORMAT_Z24_UNORM_X8_UINT:
123 return PIPE_FORMAT_Z24X8_UNORM;
124 case MESA_FORMAT_S_UINT8:
125 return PIPE_FORMAT_S8_UINT;
126 case MESA_FORMAT_Z_FLOAT32:
127 return PIPE_FORMAT_Z32_FLOAT;
128 case MESA_FORMAT_Z32_FLOAT_S8X24_UINT:
129 return PIPE_FORMAT_Z32_FLOAT_S8X24_UINT;
130 case MESA_FORMAT_YCBCR:
131 return PIPE_FORMAT_UYVY;
132 case MESA_FORMAT_YCBCR_REV:
133 return PIPE_FORMAT_YUYV;
134 case MESA_FORMAT_RGB_DXT1:
135 return PIPE_FORMAT_DXT1_RGB;
136 case MESA_FORMAT_RGBA_DXT1:
137 return PIPE_FORMAT_DXT1_RGBA;
138 case MESA_FORMAT_RGBA_DXT3:
139 return PIPE_FORMAT_DXT3_RGBA;
140 case MESA_FORMAT_RGBA_DXT5:
141 return PIPE_FORMAT_DXT5_RGBA;
142 case MESA_FORMAT_SRGB_DXT1:
143 return PIPE_FORMAT_DXT1_SRGB;
144 case MESA_FORMAT_SRGBA_DXT1:
145 return PIPE_FORMAT_DXT1_SRGBA;
146 case MESA_FORMAT_SRGBA_DXT3:
147 return PIPE_FORMAT_DXT3_SRGBA;
148 case MESA_FORMAT_SRGBA_DXT5:
149 return PIPE_FORMAT_DXT5_SRGBA;
150 case MESA_FORMAT_L8A8_SRGB:
151 return PIPE_FORMAT_LA88_SRGB;
152 case MESA_FORMAT_A8L8_SRGB:
153 return PIPE_FORMAT_AL88_SRGB;
154 case MESA_FORMAT_L_SRGB8:
155 return PIPE_FORMAT_L8_SRGB;
156 case MESA_FORMAT_BGR_SRGB8:
157 return PIPE_FORMAT_R8G8B8_SRGB;
158 case MESA_FORMAT_A8B8G8R8_SRGB:
159 return PIPE_FORMAT_ABGR8888_SRGB;
160 case MESA_FORMAT_R8G8B8A8_SRGB:
161 return PIPE_FORMAT_RGBA8888_SRGB;
162 case MESA_FORMAT_B8G8R8A8_SRGB:
163 return PIPE_FORMAT_BGRA8888_SRGB;
164 case MESA_FORMAT_A8R8G8B8_SRGB:
165 return PIPE_FORMAT_ARGB8888_SRGB;
166 case MESA_FORMAT_RGBA_FLOAT32:
167 return PIPE_FORMAT_R32G32B32A32_FLOAT;
168 case MESA_FORMAT_RGBA_FLOAT16:
169 return PIPE_FORMAT_R16G16B16A16_FLOAT;
170 case MESA_FORMAT_RGB_FLOAT32:
171 return PIPE_FORMAT_R32G32B32_FLOAT;
172 case MESA_FORMAT_RGB_FLOAT16:
173 return PIPE_FORMAT_R16G16B16_FLOAT;
174 case MESA_FORMAT_LA_FLOAT32:
175 return PIPE_FORMAT_L32A32_FLOAT;
176 case MESA_FORMAT_LA_FLOAT16:
177 return PIPE_FORMAT_L16A16_FLOAT;
178 case MESA_FORMAT_L_FLOAT32:
179 return PIPE_FORMAT_L32_FLOAT;
180 case MESA_FORMAT_L_FLOAT16:
181 return PIPE_FORMAT_L16_FLOAT;
182 case MESA_FORMAT_A_FLOAT32:
183 return PIPE_FORMAT_A32_FLOAT;
184 case MESA_FORMAT_A_FLOAT16:
185 return PIPE_FORMAT_A16_FLOAT;
186 case MESA_FORMAT_I_FLOAT32:
187 return PIPE_FORMAT_I32_FLOAT;
188 case MESA_FORMAT_I_FLOAT16:
189 return PIPE_FORMAT_I16_FLOAT;
190 case MESA_FORMAT_R_FLOAT32:
191 return PIPE_FORMAT_R32_FLOAT;
192 case MESA_FORMAT_R_FLOAT16:
193 return PIPE_FORMAT_R16_FLOAT;
194 case MESA_FORMAT_RG_FLOAT32:
195 return PIPE_FORMAT_R32G32_FLOAT;
196 case MESA_FORMAT_RG_FLOAT16:
197 return PIPE_FORMAT_R16G16_FLOAT;
198
199 case MESA_FORMAT_R_UNORM8:
200 return PIPE_FORMAT_R8_UNORM;
201 case MESA_FORMAT_R_UNORM16:
202 return PIPE_FORMAT_R16_UNORM;
203 case MESA_FORMAT_R8G8_UNORM:
204 return PIPE_FORMAT_RG88_UNORM;
205 case MESA_FORMAT_G8R8_UNORM:
206 return PIPE_FORMAT_GR88_UNORM;
207 case MESA_FORMAT_R16G16_UNORM:
208 return PIPE_FORMAT_RG1616_UNORM;
209 case MESA_FORMAT_G16R16_UNORM:
210 return PIPE_FORMAT_GR1616_UNORM;
211 case MESA_FORMAT_RGBA_UNORM16:
212 return PIPE_FORMAT_R16G16B16A16_UNORM;
213
214 /* signed int formats */
215 case MESA_FORMAT_A_UINT8:
216 return PIPE_FORMAT_A8_UINT;
217 case MESA_FORMAT_A_UINT16:
218 return PIPE_FORMAT_A16_UINT;
219 case MESA_FORMAT_A_UINT32:
220 return PIPE_FORMAT_A32_UINT;
221
222 case MESA_FORMAT_A_SINT8:
223 return PIPE_FORMAT_A8_SINT;
224 case MESA_FORMAT_A_SINT16:
225 return PIPE_FORMAT_A16_SINT;
226 case MESA_FORMAT_A_SINT32:
227 return PIPE_FORMAT_A32_SINT;
228
229 case MESA_FORMAT_I_UINT8:
230 return PIPE_FORMAT_I8_UINT;
231 case MESA_FORMAT_I_UINT16:
232 return PIPE_FORMAT_I16_UINT;
233 case MESA_FORMAT_I_UINT32:
234 return PIPE_FORMAT_I32_UINT;
235
236 case MESA_FORMAT_I_SINT8:
237 return PIPE_FORMAT_I8_SINT;
238 case MESA_FORMAT_I_SINT16:
239 return PIPE_FORMAT_I16_SINT;
240 case MESA_FORMAT_I_SINT32:
241 return PIPE_FORMAT_I32_SINT;
242
243 case MESA_FORMAT_L_UINT8:
244 return PIPE_FORMAT_L8_UINT;
245 case MESA_FORMAT_L_UINT16:
246 return PIPE_FORMAT_L16_UINT;
247 case MESA_FORMAT_L_UINT32:
248 return PIPE_FORMAT_L32_UINT;
249
250 case MESA_FORMAT_L_SINT8:
251 return PIPE_FORMAT_L8_SINT;
252 case MESA_FORMAT_L_SINT16:
253 return PIPE_FORMAT_L16_SINT;
254 case MESA_FORMAT_L_SINT32:
255 return PIPE_FORMAT_L32_SINT;
256
257 case MESA_FORMAT_LA_UINT8:
258 return PIPE_FORMAT_L8A8_UINT;
259 case MESA_FORMAT_LA_UINT16:
260 return PIPE_FORMAT_L16A16_UINT;
261 case MESA_FORMAT_LA_UINT32:
262 return PIPE_FORMAT_L32A32_UINT;
263
264 case MESA_FORMAT_LA_SINT8:
265 return PIPE_FORMAT_L8A8_SINT;
266 case MESA_FORMAT_LA_SINT16:
267 return PIPE_FORMAT_L16A16_SINT;
268 case MESA_FORMAT_LA_SINT32:
269 return PIPE_FORMAT_L32A32_SINT;
270
271 case MESA_FORMAT_R_SINT8:
272 return PIPE_FORMAT_R8_SINT;
273 case MESA_FORMAT_RG_SINT8:
274 return PIPE_FORMAT_R8G8_SINT;
275 case MESA_FORMAT_RGB_SINT8:
276 return PIPE_FORMAT_R8G8B8_SINT;
277 case MESA_FORMAT_RGBA_SINT8:
278 return PIPE_FORMAT_R8G8B8A8_SINT;
279 case MESA_FORMAT_R_SINT16:
280 return PIPE_FORMAT_R16_SINT;
281 case MESA_FORMAT_RG_SINT16:
282 return PIPE_FORMAT_R16G16_SINT;
283 case MESA_FORMAT_RGB_SINT16:
284 return PIPE_FORMAT_R16G16B16_SINT;
285 case MESA_FORMAT_RGBA_SINT16:
286 return PIPE_FORMAT_R16G16B16A16_SINT;
287 case MESA_FORMAT_R_SINT32:
288 return PIPE_FORMAT_R32_SINT;
289 case MESA_FORMAT_RG_SINT32:
290 return PIPE_FORMAT_R32G32_SINT;
291 case MESA_FORMAT_RGB_SINT32:
292 return PIPE_FORMAT_R32G32B32_SINT;
293 case MESA_FORMAT_RGBA_SINT32:
294 return PIPE_FORMAT_R32G32B32A32_SINT;
295
296 /* unsigned int formats */
297 case MESA_FORMAT_R_UINT8:
298 return PIPE_FORMAT_R8_UINT;
299 case MESA_FORMAT_RG_UINT8:
300 return PIPE_FORMAT_R8G8_UINT;
301 case MESA_FORMAT_RGB_UINT8:
302 return PIPE_FORMAT_R8G8B8_UINT;
303 case MESA_FORMAT_RGBA_UINT8:
304 return PIPE_FORMAT_R8G8B8A8_UINT;
305 case MESA_FORMAT_R_UINT16:
306 return PIPE_FORMAT_R16_UINT;
307 case MESA_FORMAT_RG_UINT16:
308 return PIPE_FORMAT_R16G16_UINT;
309 case MESA_FORMAT_RGB_UINT16:
310 return PIPE_FORMAT_R16G16B16_UINT;
311 case MESA_FORMAT_RGBA_UINT16:
312 return PIPE_FORMAT_R16G16B16A16_UINT;
313 case MESA_FORMAT_R_UINT32:
314 return PIPE_FORMAT_R32_UINT;
315 case MESA_FORMAT_RG_UINT32:
316 return PIPE_FORMAT_R32G32_UINT;
317 case MESA_FORMAT_RGB_UINT32:
318 return PIPE_FORMAT_R32G32B32_UINT;
319 case MESA_FORMAT_RGBA_UINT32:
320 return PIPE_FORMAT_R32G32B32A32_UINT;
321
322 case MESA_FORMAT_R_RGTC1_UNORM:
323 return PIPE_FORMAT_RGTC1_UNORM;
324 case MESA_FORMAT_R_RGTC1_SNORM:
325 return PIPE_FORMAT_RGTC1_SNORM;
326 case MESA_FORMAT_RG_RGTC2_UNORM:
327 return PIPE_FORMAT_RGTC2_UNORM;
328 case MESA_FORMAT_RG_RGTC2_SNORM:
329 return PIPE_FORMAT_RGTC2_SNORM;
330
331 case MESA_FORMAT_L_LATC1_UNORM:
332 return PIPE_FORMAT_LATC1_UNORM;
333 case MESA_FORMAT_L_LATC1_SNORM:
334 return PIPE_FORMAT_LATC1_SNORM;
335 case MESA_FORMAT_LA_LATC2_UNORM:
336 return PIPE_FORMAT_LATC2_UNORM;
337 case MESA_FORMAT_LA_LATC2_SNORM:
338 return PIPE_FORMAT_LATC2_SNORM;
339
340 /* The destination RGBA format mustn't be changed, because it's also
341 * a destination format of the unpack/decompression function. */
342 case MESA_FORMAT_ETC1_RGB8:
343 return st->has_etc1 ? PIPE_FORMAT_ETC1_RGB8 : PIPE_FORMAT_R8G8B8A8_UNORM;
344
345 case MESA_FORMAT_BPTC_RGBA_UNORM:
346 return PIPE_FORMAT_BPTC_RGBA_UNORM;
347 case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM:
348 return PIPE_FORMAT_BPTC_SRGBA;
349 case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT:
350 return PIPE_FORMAT_BPTC_RGB_FLOAT;
351 case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT:
352 return PIPE_FORMAT_BPTC_RGB_UFLOAT;
353
354 /* signed normalized formats */
355 case MESA_FORMAT_R_SNORM8:
356 return PIPE_FORMAT_R8_SNORM;
357 case MESA_FORMAT_R8G8_SNORM:
358 return PIPE_FORMAT_RG88_SNORM;
359 case MESA_FORMAT_G8R8_SNORM:
360 return PIPE_FORMAT_GR88_SNORM;
361 case MESA_FORMAT_R8G8B8A8_SNORM:
362 return PIPE_FORMAT_RGBA8888_SNORM;
363 case MESA_FORMAT_A8B8G8R8_SNORM:
364 return PIPE_FORMAT_ABGR8888_SNORM;
365
366 case MESA_FORMAT_A_SNORM8:
367 return PIPE_FORMAT_A8_SNORM;
368 case MESA_FORMAT_L_SNORM8:
369 return PIPE_FORMAT_L8_SNORM;
370 case MESA_FORMAT_L8A8_SNORM:
371 return PIPE_FORMAT_LA88_SNORM;
372 case MESA_FORMAT_A8L8_SNORM:
373 return PIPE_FORMAT_AL88_SNORM;
374 case MESA_FORMAT_I_SNORM8:
375 return PIPE_FORMAT_I8_SNORM;
376
377 case MESA_FORMAT_R_SNORM16:
378 return PIPE_FORMAT_R16_SNORM;
379 case MESA_FORMAT_R16G16_SNORM:
380 return PIPE_FORMAT_RG1616_SNORM;
381 case MESA_FORMAT_G16R16_SNORM:
382 return PIPE_FORMAT_GR1616_SNORM;
383 case MESA_FORMAT_RGBA_SNORM16:
384 return PIPE_FORMAT_R16G16B16A16_SNORM;
385
386 case MESA_FORMAT_A_SNORM16:
387 return PIPE_FORMAT_A16_SNORM;
388 case MESA_FORMAT_L_SNORM16:
389 return PIPE_FORMAT_L16_SNORM;
390 case MESA_FORMAT_LA_SNORM16:
391 return PIPE_FORMAT_L16A16_SNORM;
392 case MESA_FORMAT_I_SNORM16:
393 return PIPE_FORMAT_I16_SNORM;
394
395 case MESA_FORMAT_R9G9B9E5_FLOAT:
396 return PIPE_FORMAT_R9G9B9E5_FLOAT;
397 case MESA_FORMAT_R11G11B10_FLOAT:
398 return PIPE_FORMAT_R11G11B10_FLOAT;
399 case MESA_FORMAT_B10G10R10A2_UINT:
400 return PIPE_FORMAT_B10G10R10A2_UINT;
401 case MESA_FORMAT_R10G10B10A2_UINT:
402 return PIPE_FORMAT_R10G10B10A2_UINT;
403
404 case MESA_FORMAT_B4G4R4X4_UNORM:
405 return PIPE_FORMAT_B4G4R4X4_UNORM;
406 case MESA_FORMAT_B5G5R5X1_UNORM:
407 return PIPE_FORMAT_B5G5R5X1_UNORM;
408 case MESA_FORMAT_R8G8B8X8_SNORM:
409 return PIPE_FORMAT_RGBX8888_SNORM;
410 case MESA_FORMAT_X8B8G8R8_SNORM:
411 return PIPE_FORMAT_XBGR8888_SNORM;
412 case MESA_FORMAT_R8G8B8X8_SRGB:
413 return PIPE_FORMAT_RGBX8888_SRGB;
414 case MESA_FORMAT_X8B8G8R8_SRGB:
415 return PIPE_FORMAT_XBGR8888_SRGB;
416 case MESA_FORMAT_RGBX_UINT8:
417 return PIPE_FORMAT_R8G8B8X8_UINT;
418 case MESA_FORMAT_RGBX_SINT8:
419 return PIPE_FORMAT_R8G8B8X8_SINT;
420 case MESA_FORMAT_B10G10R10X2_UNORM:
421 return PIPE_FORMAT_B10G10R10X2_UNORM;
422 case MESA_FORMAT_RGBX_UNORM16:
423 return PIPE_FORMAT_R16G16B16X16_UNORM;
424 case MESA_FORMAT_RGBX_SNORM16:
425 return PIPE_FORMAT_R16G16B16X16_SNORM;
426 case MESA_FORMAT_RGBX_FLOAT16:
427 return PIPE_FORMAT_R16G16B16X16_FLOAT;
428 case MESA_FORMAT_RGBX_UINT16:
429 return PIPE_FORMAT_R16G16B16X16_UINT;
430 case MESA_FORMAT_RGBX_SINT16:
431 return PIPE_FORMAT_R16G16B16X16_SINT;
432 case MESA_FORMAT_RGBX_FLOAT32:
433 return PIPE_FORMAT_R32G32B32X32_FLOAT;
434 case MESA_FORMAT_RGBX_UINT32:
435 return PIPE_FORMAT_R32G32B32X32_UINT;
436 case MESA_FORMAT_RGBX_SINT32:
437 return PIPE_FORMAT_R32G32B32X32_SINT;
438
439 case MESA_FORMAT_B8G8R8X8_SRGB:
440 return PIPE_FORMAT_BGRX8888_SRGB;
441 case MESA_FORMAT_X8R8G8B8_SRGB:
442 return PIPE_FORMAT_XRGB8888_SRGB;
443
444 /* ETC2 formats are emulated as uncompressed ones.
445 * The destination formats mustn't be changed, because they are also
446 * destination formats of the unpack/decompression function. */
447 case MESA_FORMAT_ETC2_RGB8:
448 return st->has_etc2 ? PIPE_FORMAT_ETC2_RGB8 : PIPE_FORMAT_R8G8B8A8_UNORM;
449 case MESA_FORMAT_ETC2_SRGB8:
450 return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGB8 : PIPE_FORMAT_B8G8R8A8_SRGB;
451 case MESA_FORMAT_ETC2_RGBA8_EAC:
452 return st->has_etc2 ? PIPE_FORMAT_ETC2_RGBA8 : PIPE_FORMAT_R8G8B8A8_UNORM;
453 case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC:
454 return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGBA8 : PIPE_FORMAT_B8G8R8A8_SRGB;
455 case MESA_FORMAT_ETC2_R11_EAC:
456 return st->has_etc2 ? PIPE_FORMAT_ETC2_R11_UNORM : PIPE_FORMAT_R16_UNORM;
457 case MESA_FORMAT_ETC2_RG11_EAC:
458 return st->has_etc2 ? PIPE_FORMAT_ETC2_RG11_UNORM : PIPE_FORMAT_R16G16_UNORM;
459 case MESA_FORMAT_ETC2_SIGNED_R11_EAC:
460 return st->has_etc2 ? PIPE_FORMAT_ETC2_R11_SNORM : PIPE_FORMAT_R16_SNORM;
461 case MESA_FORMAT_ETC2_SIGNED_RG11_EAC:
462 return st->has_etc2 ? PIPE_FORMAT_ETC2_RG11_SNORM : PIPE_FORMAT_R16G16_SNORM;
463 case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1:
464 return st->has_etc2 ? PIPE_FORMAT_ETC2_RGB8A1 : PIPE_FORMAT_R8G8B8A8_UNORM;
465 case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1:
466 return st->has_etc2 ? PIPE_FORMAT_ETC2_SRGB8A1 : PIPE_FORMAT_B8G8R8A8_SRGB;
467
468 default:
469 return PIPE_FORMAT_NONE;
470 }
471 }
472
473
474 /**
475 * Translate Gallium format to Mesa format.
476 */
477 mesa_format
478 st_pipe_format_to_mesa_format(enum pipe_format format)
479 {
480 switch (format) {
481 case PIPE_FORMAT_ABGR8888_UNORM:
482 return MESA_FORMAT_A8B8G8R8_UNORM;
483 case PIPE_FORMAT_RGBA8888_UNORM:
484 return MESA_FORMAT_R8G8B8A8_UNORM;
485 case PIPE_FORMAT_BGRA8888_UNORM:
486 return MESA_FORMAT_B8G8R8A8_UNORM;
487 case PIPE_FORMAT_ARGB8888_UNORM:
488 return MESA_FORMAT_A8R8G8B8_UNORM;
489 case PIPE_FORMAT_XBGR8888_UNORM:
490 return MESA_FORMAT_X8B8G8R8_UNORM;
491 case PIPE_FORMAT_RGBX8888_UNORM:
492 return MESA_FORMAT_R8G8B8X8_UNORM;
493 case PIPE_FORMAT_BGRX8888_UNORM:
494 return MESA_FORMAT_B8G8R8X8_UNORM;
495 case PIPE_FORMAT_XRGB8888_UNORM:
496 return MESA_FORMAT_X8R8G8B8_UNORM;
497 case PIPE_FORMAT_B5G5R5A1_UNORM:
498 return MESA_FORMAT_B5G5R5A1_UNORM;
499 case PIPE_FORMAT_B4G4R4A4_UNORM:
500 return MESA_FORMAT_B4G4R4A4_UNORM;
501 case PIPE_FORMAT_B5G6R5_UNORM:
502 return MESA_FORMAT_B5G6R5_UNORM;
503 case PIPE_FORMAT_B2G3R3_UNORM:
504 return MESA_FORMAT_B2G3R3_UNORM;
505 case PIPE_FORMAT_B10G10R10A2_UNORM:
506 return MESA_FORMAT_B10G10R10A2_UNORM;
507 case PIPE_FORMAT_R10G10B10A2_UNORM:
508 return MESA_FORMAT_R10G10B10A2_UNORM;
509 case PIPE_FORMAT_L4A4_UNORM:
510 return MESA_FORMAT_L4A4_UNORM;
511 case PIPE_FORMAT_LA88_UNORM:
512 return MESA_FORMAT_L8A8_UNORM;
513 case PIPE_FORMAT_AL88_UNORM:
514 return MESA_FORMAT_A8L8_UNORM;
515 case PIPE_FORMAT_LA1616_UNORM:
516 return MESA_FORMAT_L16A16_UNORM;
517 case PIPE_FORMAT_AL1616_UNORM:
518 return MESA_FORMAT_A16L16_UNORM;
519 case PIPE_FORMAT_A8_UNORM:
520 return MESA_FORMAT_A_UNORM8;
521 case PIPE_FORMAT_A16_UNORM:
522 return MESA_FORMAT_A_UNORM16;
523 case PIPE_FORMAT_L8_UNORM:
524 return MESA_FORMAT_L_UNORM8;
525 case PIPE_FORMAT_L16_UNORM:
526 return MESA_FORMAT_L_UNORM16;
527 case PIPE_FORMAT_I8_UNORM:
528 return MESA_FORMAT_I_UNORM8;
529 case PIPE_FORMAT_I16_UNORM:
530 return MESA_FORMAT_I_UNORM16;
531 case PIPE_FORMAT_S8_UINT:
532 return MESA_FORMAT_S_UINT8;
533
534 case PIPE_FORMAT_R16G16B16A16_UNORM:
535 return MESA_FORMAT_RGBA_UNORM16;
536
537 case PIPE_FORMAT_Z16_UNORM:
538 return MESA_FORMAT_Z_UNORM16;
539 case PIPE_FORMAT_Z32_UNORM:
540 return MESA_FORMAT_Z_UNORM32;
541 case PIPE_FORMAT_S8_UINT_Z24_UNORM:
542 return MESA_FORMAT_S8_UINT_Z24_UNORM;
543 case PIPE_FORMAT_X8Z24_UNORM:
544 return MESA_FORMAT_X8_UINT_Z24_UNORM;
545 case PIPE_FORMAT_Z24X8_UNORM:
546 return MESA_FORMAT_Z24_UNORM_X8_UINT;
547 case PIPE_FORMAT_Z24_UNORM_S8_UINT:
548 return MESA_FORMAT_Z24_UNORM_S8_UINT;
549 case PIPE_FORMAT_Z32_FLOAT:
550 return MESA_FORMAT_Z_FLOAT32;
551 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT:
552 return MESA_FORMAT_Z32_FLOAT_S8X24_UINT;
553
554 case PIPE_FORMAT_UYVY:
555 return MESA_FORMAT_YCBCR;
556 case PIPE_FORMAT_YUYV:
557 return MESA_FORMAT_YCBCR_REV;
558
559 case PIPE_FORMAT_DXT1_RGB:
560 return MESA_FORMAT_RGB_DXT1;
561 case PIPE_FORMAT_DXT1_RGBA:
562 return MESA_FORMAT_RGBA_DXT1;
563 case PIPE_FORMAT_DXT3_RGBA:
564 return MESA_FORMAT_RGBA_DXT3;
565 case PIPE_FORMAT_DXT5_RGBA:
566 return MESA_FORMAT_RGBA_DXT5;
567 case PIPE_FORMAT_DXT1_SRGB:
568 return MESA_FORMAT_SRGB_DXT1;
569 case PIPE_FORMAT_DXT1_SRGBA:
570 return MESA_FORMAT_SRGBA_DXT1;
571 case PIPE_FORMAT_DXT3_SRGBA:
572 return MESA_FORMAT_SRGBA_DXT3;
573 case PIPE_FORMAT_DXT5_SRGBA:
574 return MESA_FORMAT_SRGBA_DXT5;
575 case PIPE_FORMAT_LA88_SRGB:
576 return MESA_FORMAT_L8A8_SRGB;
577 case PIPE_FORMAT_AL88_SRGB:
578 return MESA_FORMAT_A8L8_SRGB;
579 case PIPE_FORMAT_L8_SRGB:
580 return MESA_FORMAT_L_SRGB8;
581 case PIPE_FORMAT_R8G8B8_SRGB:
582 return MESA_FORMAT_BGR_SRGB8;
583 case PIPE_FORMAT_ABGR8888_SRGB:
584 return MESA_FORMAT_A8B8G8R8_SRGB;
585 case PIPE_FORMAT_RGBA8888_SRGB:
586 return MESA_FORMAT_R8G8B8A8_SRGB;
587 case PIPE_FORMAT_BGRA8888_SRGB:
588 return MESA_FORMAT_B8G8R8A8_SRGB;
589 case PIPE_FORMAT_ARGB8888_SRGB:
590 return MESA_FORMAT_A8R8G8B8_SRGB;
591 case PIPE_FORMAT_R32G32B32A32_FLOAT:
592 return MESA_FORMAT_RGBA_FLOAT32;
593 case PIPE_FORMAT_R16G16B16A16_FLOAT:
594 return MESA_FORMAT_RGBA_FLOAT16;
595 case PIPE_FORMAT_R32G32B32_FLOAT:
596 return MESA_FORMAT_RGB_FLOAT32;
597 case PIPE_FORMAT_R16G16B16_FLOAT:
598 return MESA_FORMAT_RGB_FLOAT16;
599 case PIPE_FORMAT_L32A32_FLOAT:
600 return MESA_FORMAT_LA_FLOAT32;
601 case PIPE_FORMAT_L16A16_FLOAT:
602 return MESA_FORMAT_LA_FLOAT16;
603 case PIPE_FORMAT_L32_FLOAT:
604 return MESA_FORMAT_L_FLOAT32;
605 case PIPE_FORMAT_L16_FLOAT:
606 return MESA_FORMAT_L_FLOAT16;
607 case PIPE_FORMAT_A32_FLOAT:
608 return MESA_FORMAT_A_FLOAT32;
609 case PIPE_FORMAT_A16_FLOAT:
610 return MESA_FORMAT_A_FLOAT16;
611 case PIPE_FORMAT_I32_FLOAT:
612 return MESA_FORMAT_I_FLOAT32;
613 case PIPE_FORMAT_I16_FLOAT:
614 return MESA_FORMAT_I_FLOAT16;
615 case PIPE_FORMAT_R32_FLOAT:
616 return MESA_FORMAT_R_FLOAT32;
617 case PIPE_FORMAT_R16_FLOAT:
618 return MESA_FORMAT_R_FLOAT16;
619 case PIPE_FORMAT_R32G32_FLOAT:
620 return MESA_FORMAT_RG_FLOAT32;
621 case PIPE_FORMAT_R16G16_FLOAT:
622 return MESA_FORMAT_RG_FLOAT16;
623
624 case PIPE_FORMAT_R8_UNORM:
625 return MESA_FORMAT_R_UNORM8;
626 case PIPE_FORMAT_R16_UNORM:
627 return MESA_FORMAT_R_UNORM16;
628 case PIPE_FORMAT_RG88_UNORM:
629 return MESA_FORMAT_R8G8_UNORM;
630 case PIPE_FORMAT_GR88_UNORM:
631 return MESA_FORMAT_G8R8_UNORM;
632 case PIPE_FORMAT_RG1616_UNORM:
633 return MESA_FORMAT_R16G16_UNORM;
634 case PIPE_FORMAT_GR1616_UNORM:
635 return MESA_FORMAT_G16R16_UNORM;
636
637 case PIPE_FORMAT_A8_UINT:
638 return MESA_FORMAT_A_UINT8;
639 case PIPE_FORMAT_A16_UINT:
640 return MESA_FORMAT_A_UINT16;
641 case PIPE_FORMAT_A32_UINT:
642 return MESA_FORMAT_A_UINT32;
643 case PIPE_FORMAT_A8_SINT:
644 return MESA_FORMAT_A_SINT8;
645 case PIPE_FORMAT_A16_SINT:
646 return MESA_FORMAT_A_SINT16;
647 case PIPE_FORMAT_A32_SINT:
648 return MESA_FORMAT_A_SINT32;
649
650 case PIPE_FORMAT_I8_UINT:
651 return MESA_FORMAT_I_UINT8;
652 case PIPE_FORMAT_I16_UINT:
653 return MESA_FORMAT_I_UINT16;
654 case PIPE_FORMAT_I32_UINT:
655 return MESA_FORMAT_I_UINT32;
656 case PIPE_FORMAT_I8_SINT:
657 return MESA_FORMAT_I_SINT8;
658 case PIPE_FORMAT_I16_SINT:
659 return MESA_FORMAT_I_SINT16;
660 case PIPE_FORMAT_I32_SINT:
661 return MESA_FORMAT_I_SINT32;
662
663 case PIPE_FORMAT_L8_UINT:
664 return MESA_FORMAT_L_UINT8;
665 case PIPE_FORMAT_L16_UINT:
666 return MESA_FORMAT_L_UINT16;
667 case PIPE_FORMAT_L32_UINT:
668 return MESA_FORMAT_L_UINT32;
669 case PIPE_FORMAT_L8_SINT:
670 return MESA_FORMAT_L_SINT8;
671 case PIPE_FORMAT_L16_SINT:
672 return MESA_FORMAT_L_SINT16;
673 case PIPE_FORMAT_L32_SINT:
674 return MESA_FORMAT_L_SINT32;
675
676 case PIPE_FORMAT_L8A8_UINT:
677 return MESA_FORMAT_LA_UINT8;
678 case PIPE_FORMAT_L16A16_UINT:
679 return MESA_FORMAT_LA_UINT16;
680 case PIPE_FORMAT_L32A32_UINT:
681 return MESA_FORMAT_LA_UINT32;
682 case PIPE_FORMAT_L8A8_SINT:
683 return MESA_FORMAT_LA_SINT8;
684 case PIPE_FORMAT_L16A16_SINT:
685 return MESA_FORMAT_LA_SINT16;
686 case PIPE_FORMAT_L32A32_SINT:
687 return MESA_FORMAT_LA_SINT32;
688
689 case PIPE_FORMAT_R8_SINT:
690 return MESA_FORMAT_R_SINT8;
691 case PIPE_FORMAT_R8G8_SINT:
692 return MESA_FORMAT_RG_SINT8;
693 case PIPE_FORMAT_R8G8B8_SINT:
694 return MESA_FORMAT_RGB_SINT8;
695 case PIPE_FORMAT_R8G8B8A8_SINT:
696 return MESA_FORMAT_RGBA_SINT8;
697
698 case PIPE_FORMAT_R16_SINT:
699 return MESA_FORMAT_R_SINT16;
700 case PIPE_FORMAT_R16G16_SINT:
701 return MESA_FORMAT_RG_SINT16;
702 case PIPE_FORMAT_R16G16B16_SINT:
703 return MESA_FORMAT_RGB_SINT16;
704 case PIPE_FORMAT_R16G16B16A16_SINT:
705 return MESA_FORMAT_RGBA_SINT16;
706
707 case PIPE_FORMAT_R32_SINT:
708 return MESA_FORMAT_R_SINT32;
709 case PIPE_FORMAT_R32G32_SINT:
710 return MESA_FORMAT_RG_SINT32;
711 case PIPE_FORMAT_R32G32B32_SINT:
712 return MESA_FORMAT_RGB_SINT32;
713 case PIPE_FORMAT_R32G32B32A32_SINT:
714 return MESA_FORMAT_RGBA_SINT32;
715
716 /* unsigned int formats */
717 case PIPE_FORMAT_R8_UINT:
718 return MESA_FORMAT_R_UINT8;
719 case PIPE_FORMAT_R8G8_UINT:
720 return MESA_FORMAT_RG_UINT8;
721 case PIPE_FORMAT_R8G8B8_UINT:
722 return MESA_FORMAT_RGB_UINT8;
723 case PIPE_FORMAT_R8G8B8A8_UINT:
724 return MESA_FORMAT_RGBA_UINT8;
725
726 case PIPE_FORMAT_R16_UINT:
727 return MESA_FORMAT_R_UINT16;
728 case PIPE_FORMAT_R16G16_UINT:
729 return MESA_FORMAT_RG_UINT16;
730 case PIPE_FORMAT_R16G16B16_UINT:
731 return MESA_FORMAT_RGB_UINT16;
732 case PIPE_FORMAT_R16G16B16A16_UINT:
733 return MESA_FORMAT_RGBA_UINT16;
734
735 case PIPE_FORMAT_R32_UINT:
736 return MESA_FORMAT_R_UINT32;
737 case PIPE_FORMAT_R32G32_UINT:
738 return MESA_FORMAT_RG_UINT32;
739 case PIPE_FORMAT_R32G32B32_UINT:
740 return MESA_FORMAT_RGB_UINT32;
741 case PIPE_FORMAT_R32G32B32A32_UINT:
742 return MESA_FORMAT_RGBA_UINT32;
743
744 case PIPE_FORMAT_RGTC1_UNORM:
745 return MESA_FORMAT_R_RGTC1_UNORM;
746 case PIPE_FORMAT_RGTC1_SNORM:
747 return MESA_FORMAT_R_RGTC1_SNORM;
748 case PIPE_FORMAT_RGTC2_UNORM:
749 return MESA_FORMAT_RG_RGTC2_UNORM;
750 case PIPE_FORMAT_RGTC2_SNORM:
751 return MESA_FORMAT_RG_RGTC2_SNORM;
752
753 case PIPE_FORMAT_LATC1_UNORM:
754 return MESA_FORMAT_L_LATC1_UNORM;
755 case PIPE_FORMAT_LATC1_SNORM:
756 return MESA_FORMAT_L_LATC1_SNORM;
757 case PIPE_FORMAT_LATC2_UNORM:
758 return MESA_FORMAT_LA_LATC2_UNORM;
759 case PIPE_FORMAT_LATC2_SNORM:
760 return MESA_FORMAT_LA_LATC2_SNORM;
761
762 case PIPE_FORMAT_ETC1_RGB8:
763 return MESA_FORMAT_ETC1_RGB8;
764
765 case PIPE_FORMAT_BPTC_RGBA_UNORM:
766 return MESA_FORMAT_BPTC_RGBA_UNORM;
767 case PIPE_FORMAT_BPTC_SRGBA:
768 return MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM;
769 case PIPE_FORMAT_BPTC_RGB_FLOAT:
770 return MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT;
771 case PIPE_FORMAT_BPTC_RGB_UFLOAT:
772 return MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT;
773
774 /* signed normalized formats */
775 case PIPE_FORMAT_R8_SNORM:
776 return MESA_FORMAT_R_SNORM8;
777 case PIPE_FORMAT_RG88_SNORM:
778 return MESA_FORMAT_R8G8_SNORM;
779 case PIPE_FORMAT_GR88_SNORM:
780 return MESA_FORMAT_G8R8_SNORM;
781 case PIPE_FORMAT_RGBA8888_SNORM:
782 return MESA_FORMAT_R8G8B8A8_SNORM;
783 case PIPE_FORMAT_ABGR8888_SNORM:
784 return MESA_FORMAT_A8B8G8R8_SNORM;
785
786 case PIPE_FORMAT_A8_SNORM:
787 return MESA_FORMAT_A_SNORM8;
788 case PIPE_FORMAT_L8_SNORM:
789 return MESA_FORMAT_L_SNORM8;
790 case PIPE_FORMAT_LA88_SNORM:
791 return MESA_FORMAT_L8A8_SNORM;
792 case PIPE_FORMAT_AL88_SNORM:
793 return MESA_FORMAT_A8L8_SNORM;
794 case PIPE_FORMAT_I8_SNORM:
795 return MESA_FORMAT_I_SNORM8;
796
797 case PIPE_FORMAT_R16_SNORM:
798 return MESA_FORMAT_R_SNORM16;
799 case PIPE_FORMAT_RG1616_SNORM:
800 return MESA_FORMAT_R16G16_SNORM;
801 case PIPE_FORMAT_GR1616_SNORM:
802 return MESA_FORMAT_G16R16_SNORM;
803 case PIPE_FORMAT_R16G16B16A16_SNORM:
804 return MESA_FORMAT_RGBA_SNORM16;
805
806 case PIPE_FORMAT_A16_SNORM:
807 return MESA_FORMAT_A_SNORM16;
808 case PIPE_FORMAT_L16_SNORM:
809 return MESA_FORMAT_L_SNORM16;
810 case PIPE_FORMAT_L16A16_SNORM:
811 return MESA_FORMAT_LA_SNORM16;
812 case PIPE_FORMAT_I16_SNORM:
813 return MESA_FORMAT_I_SNORM16;
814
815 case PIPE_FORMAT_R9G9B9E5_FLOAT:
816 return MESA_FORMAT_R9G9B9E5_FLOAT;
817 case PIPE_FORMAT_R11G11B10_FLOAT:
818 return MESA_FORMAT_R11G11B10_FLOAT;
819
820 case PIPE_FORMAT_B10G10R10A2_UINT:
821 return MESA_FORMAT_B10G10R10A2_UINT;
822 case PIPE_FORMAT_R10G10B10A2_UINT:
823 return MESA_FORMAT_R10G10B10A2_UINT;
824
825 case PIPE_FORMAT_B4G4R4X4_UNORM:
826 return MESA_FORMAT_B4G4R4X4_UNORM;
827 case PIPE_FORMAT_B5G5R5X1_UNORM:
828 return MESA_FORMAT_B5G5R5X1_UNORM;
829 case PIPE_FORMAT_RGBX8888_SNORM:
830 return MESA_FORMAT_R8G8B8X8_SNORM;
831 case PIPE_FORMAT_XBGR8888_SNORM:
832 return MESA_FORMAT_X8B8G8R8_SNORM;
833 case PIPE_FORMAT_RGBX8888_SRGB:
834 return MESA_FORMAT_R8G8B8X8_SRGB;
835 case PIPE_FORMAT_XBGR8888_SRGB:
836 return MESA_FORMAT_X8B8G8R8_SRGB;
837 case PIPE_FORMAT_R8G8B8X8_UINT:
838 return MESA_FORMAT_RGBX_UINT8;
839 case PIPE_FORMAT_R8G8B8X8_SINT:
840 return MESA_FORMAT_RGBX_SINT8;
841 case PIPE_FORMAT_B10G10R10X2_UNORM:
842 return MESA_FORMAT_B10G10R10X2_UNORM;
843 case PIPE_FORMAT_R16G16B16X16_UNORM:
844 return MESA_FORMAT_RGBX_UNORM16;
845 case PIPE_FORMAT_R16G16B16X16_SNORM:
846 return MESA_FORMAT_RGBX_SNORM16;
847 case PIPE_FORMAT_R16G16B16X16_FLOAT:
848 return MESA_FORMAT_RGBX_FLOAT16;
849 case PIPE_FORMAT_R16G16B16X16_UINT:
850 return MESA_FORMAT_RGBX_UINT16;
851 case PIPE_FORMAT_R16G16B16X16_SINT:
852 return MESA_FORMAT_RGBX_SINT16;
853 case PIPE_FORMAT_R32G32B32X32_FLOAT:
854 return MESA_FORMAT_RGBX_FLOAT32;
855 case PIPE_FORMAT_R32G32B32X32_UINT:
856 return MESA_FORMAT_RGBX_UINT32;
857 case PIPE_FORMAT_R32G32B32X32_SINT:
858 return MESA_FORMAT_RGBX_SINT32;
859
860 case PIPE_FORMAT_BGRX8888_SRGB:
861 return MESA_FORMAT_B8G8R8X8_SRGB;
862 case PIPE_FORMAT_XRGB8888_SRGB:
863 return MESA_FORMAT_X8R8G8B8_SRGB;
864
865 case PIPE_FORMAT_ETC2_RGB8:
866 return MESA_FORMAT_ETC2_RGB8;
867 case PIPE_FORMAT_ETC2_SRGB8:
868 return MESA_FORMAT_ETC2_SRGB8;
869 case PIPE_FORMAT_ETC2_RGB8A1:
870 return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1;
871 case PIPE_FORMAT_ETC2_SRGB8A1:
872 return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1;
873 case PIPE_FORMAT_ETC2_RGBA8:
874 return MESA_FORMAT_ETC2_RGBA8_EAC;
875 case PIPE_FORMAT_ETC2_SRGBA8:
876 return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC;
877 case PIPE_FORMAT_ETC2_R11_UNORM:
878 return MESA_FORMAT_ETC2_R11_EAC;
879 case PIPE_FORMAT_ETC2_R11_SNORM:
880 return MESA_FORMAT_ETC2_SIGNED_R11_EAC;
881 case PIPE_FORMAT_ETC2_RG11_UNORM:
882 return MESA_FORMAT_ETC2_RG11_EAC;
883 case PIPE_FORMAT_ETC2_RG11_SNORM:
884 return MESA_FORMAT_ETC2_SIGNED_RG11_EAC;
885
886 default:
887 return MESA_FORMAT_NONE;
888 }
889 }
890
891
892 /**
893 * Debug only: check that the two functions above correctly map
894 * Mesa formats to Gallium formats and back again.
895 */
896 static void
897 test_format_conversion(struct st_context *st)
898 {
899 GLuint i;
900
901 /* test all Mesa formats */
902 for (i = 1; i < MESA_FORMAT_COUNT; i++) {
903 enum pipe_format pf;
904
905 /* ETC formats are translated differently, skip them. */
906 if (_mesa_is_format_etc2(i))
907 continue;
908 if (i == MESA_FORMAT_ETC1_RGB8 && !st->has_etc1)
909 continue;
910
911 pf = st_mesa_format_to_pipe_format(st, i);
912 if (pf != PIPE_FORMAT_NONE) {
913 mesa_format mf = st_pipe_format_to_mesa_format(pf);
914 assert(mf == i);
915 }
916 }
917
918 /* Test all Gallium formats */
919 for (i = 1; i < PIPE_FORMAT_COUNT; i++) {
920 mesa_format mf = st_pipe_format_to_mesa_format(i);
921
922 /* ETC formats are translated differently, skip them. */
923 if (i == PIPE_FORMAT_ETC1_RGB8 && !st->has_etc1)
924 continue;
925
926 if (_mesa_is_format_etc2(mf) && !st->has_etc2)
927 continue;
928
929 if (mf != MESA_FORMAT_NONE) {
930 enum pipe_format pf = st_mesa_format_to_pipe_format(st, mf);
931 assert(pf == i);
932 }
933 }
934 }
935
936
937 /**
938 * Map GL texture formats to Gallium pipe formats.
939 */
940 struct format_mapping
941 {
942 GLenum glFormats[18]; /**< list of GLenum formats, 0-terminated */
943 enum pipe_format pipeFormats[13]; /**< list of pipe formats, 0-terminated */
944 };
945
946
947 #define DEFAULT_RGBA_FORMATS \
948 PIPE_FORMAT_B8G8R8A8_UNORM, \
949 PIPE_FORMAT_R8G8B8A8_UNORM, \
950 PIPE_FORMAT_A8R8G8B8_UNORM, \
951 PIPE_FORMAT_A8B8G8R8_UNORM, \
952 0
953
954 #define DEFAULT_RGB_FORMATS \
955 PIPE_FORMAT_B8G8R8X8_UNORM, \
956 PIPE_FORMAT_R8G8B8X8_UNORM, \
957 PIPE_FORMAT_X8R8G8B8_UNORM, \
958 PIPE_FORMAT_X8B8G8R8_UNORM, \
959 PIPE_FORMAT_B5G6R5_UNORM, \
960 DEFAULT_RGBA_FORMATS
961
962 #define DEFAULT_SRGBA_FORMATS \
963 PIPE_FORMAT_B8G8R8A8_SRGB, \
964 PIPE_FORMAT_R8G8B8A8_SRGB, \
965 PIPE_FORMAT_A8R8G8B8_SRGB, \
966 PIPE_FORMAT_A8B8G8R8_SRGB, \
967 0
968
969 #define DEFAULT_DEPTH_FORMATS \
970 PIPE_FORMAT_Z24X8_UNORM, \
971 PIPE_FORMAT_X8Z24_UNORM, \
972 PIPE_FORMAT_Z16_UNORM, \
973 PIPE_FORMAT_Z24_UNORM_S8_UINT, \
974 PIPE_FORMAT_S8_UINT_Z24_UNORM, \
975 0
976
977 #define DEFAULT_SNORM8_RGBA_FORMATS \
978 PIPE_FORMAT_R8G8B8A8_SNORM, \
979 0
980
981 #define DEFAULT_UNORM16_RGBA_FORMATS \
982 PIPE_FORMAT_R16G16B16A16_UNORM, \
983 DEFAULT_RGBA_FORMATS
984
985
986 /**
987 * This table maps OpenGL texture format enums to Gallium pipe_format enums.
988 * Multiple GL enums might map to multiple pipe_formats.
989 * The first pipe format in the list that's supported is the one that's chosen.
990 */
991 static const struct format_mapping format_map[] = {
992 /* Basic RGB, RGBA formats */
993 {
994 { GL_RGB10, 0 },
995 { PIPE_FORMAT_B10G10R10X2_UNORM, PIPE_FORMAT_B10G10R10A2_UNORM,
996 PIPE_FORMAT_R10G10B10A2_UNORM, DEFAULT_RGB_FORMATS }
997 },
998 {
999 { GL_RGB10_A2, 0 },
1000 { PIPE_FORMAT_B10G10R10A2_UNORM, PIPE_FORMAT_R10G10B10A2_UNORM,
1001 DEFAULT_RGBA_FORMATS }
1002 },
1003 {
1004 { 4, GL_RGBA, GL_RGBA8, 0 },
1005 { DEFAULT_RGBA_FORMATS }
1006 },
1007 {
1008 { GL_BGRA, 0 },
1009 { DEFAULT_RGBA_FORMATS }
1010 },
1011 {
1012 { 3, GL_RGB, GL_RGB8, 0 },
1013 { DEFAULT_RGB_FORMATS }
1014 },
1015 {
1016 { GL_RGB12, GL_RGB16, 0 },
1017 { PIPE_FORMAT_R16G16B16X16_UNORM, PIPE_FORMAT_R16G16B16A16_UNORM,
1018 DEFAULT_RGB_FORMATS }
1019 },
1020 {
1021 { GL_RGBA12, GL_RGBA16, 0 },
1022 { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
1023 },
1024 {
1025 { GL_RGBA4, GL_RGBA2, 0 },
1026 { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
1027 },
1028 {
1029 { GL_RGB5_A1, 0 },
1030 { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
1031 },
1032 {
1033 { GL_R3_G3_B2, 0 },
1034 { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
1035 PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGB_FORMATS }
1036 },
1037 {
1038 { GL_RGB4 },
1039 { PIPE_FORMAT_B4G4R4X4_UNORM, PIPE_FORMAT_B4G4R4A4_UNORM,
1040 DEFAULT_RGB_FORMATS }
1041 },
1042 {
1043 { GL_RGB5 },
1044 { PIPE_FORMAT_B5G5R5X1_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
1045 DEFAULT_RGB_FORMATS }
1046 },
1047 {
1048 { GL_RGB565 },
1049 { PIPE_FORMAT_B5G6R5_UNORM, DEFAULT_RGB_FORMATS }
1050 },
1051
1052 /* basic Alpha formats */
1053 {
1054 { GL_ALPHA12, GL_ALPHA16, 0 },
1055 { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
1056 DEFAULT_RGBA_FORMATS }
1057 },
1058 {
1059 { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
1060 { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
1061 },
1062
1063 /* basic Luminance formats */
1064 {
1065 { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
1066 { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
1067 },
1068 {
1069 { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
1070 { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
1071 },
1072
1073 /* basic Luminance/Alpha formats */
1074 {
1075 { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
1076 GL_LUMINANCE16_ALPHA16, 0},
1077 { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
1078 DEFAULT_RGBA_FORMATS }
1079 },
1080 {
1081 { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
1082 { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1083 },
1084 {
1085 { GL_LUMINANCE4_ALPHA4, 0 },
1086 { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
1087 DEFAULT_RGBA_FORMATS }
1088 },
1089
1090 /* basic Intensity formats */
1091 {
1092 { GL_INTENSITY12, GL_INTENSITY16, 0 },
1093 { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1094 },
1095 {
1096 { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
1097 GL_COMPRESSED_INTENSITY, 0 },
1098 { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
1099 },
1100
1101 /* YCbCr */
1102 {
1103 { GL_YCBCR_MESA, 0 },
1104 { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
1105 },
1106
1107 /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
1108 {
1109 { GL_COMPRESSED_RGB, 0 },
1110 { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
1111 },
1112 {
1113 { GL_COMPRESSED_RGBA, 0 },
1114 { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
1115 },
1116 {
1117 { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
1118 { PIPE_FORMAT_DXT1_RGB, 0 }
1119 },
1120 {
1121 { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
1122 { PIPE_FORMAT_DXT1_RGBA, 0 }
1123 },
1124 {
1125 { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
1126 { PIPE_FORMAT_DXT3_RGBA, 0 }
1127 },
1128 {
1129 { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
1130 { PIPE_FORMAT_DXT5_RGBA, 0 }
1131 },
1132
1133 #if 0
1134 {
1135 { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
1136 { PIPE_FORMAT_RGB_FXT1, 0 }
1137 },
1138 {
1139 { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
1140 { PIPE_FORMAT_RGBA_FXT1, 0 }
1141 },
1142 #endif
1143
1144 /* Depth formats */
1145 {
1146 { GL_DEPTH_COMPONENT16, 0 },
1147 { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
1148 },
1149 {
1150 { GL_DEPTH_COMPONENT24, 0 },
1151 { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
1152 DEFAULT_DEPTH_FORMATS }
1153 },
1154 {
1155 { GL_DEPTH_COMPONENT32, 0 },
1156 { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
1157 },
1158 {
1159 { GL_DEPTH_COMPONENT, 0 },
1160 { DEFAULT_DEPTH_FORMATS }
1161 },
1162 {
1163 { GL_DEPTH_COMPONENT32F, 0 },
1164 { PIPE_FORMAT_Z32_FLOAT, 0 }
1165 },
1166
1167 /* stencil formats */
1168 {
1169 { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
1170 GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
1171 {
1172 PIPE_FORMAT_S8_UINT, PIPE_FORMAT_Z24_UNORM_S8_UINT,
1173 PIPE_FORMAT_S8_UINT_Z24_UNORM, 0
1174 }
1175 },
1176
1177 /* Depth / Stencil formats */
1178 {
1179 { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
1180 { PIPE_FORMAT_Z24_UNORM_S8_UINT, PIPE_FORMAT_S8_UINT_Z24_UNORM, 0 }
1181 },
1182 {
1183 { GL_DEPTH32F_STENCIL8, 0 },
1184 { PIPE_FORMAT_Z32_FLOAT_S8X24_UINT, 0 }
1185 },
1186
1187 /* sRGB formats */
1188 {
1189 { GL_SRGB_EXT, GL_SRGB8_EXT, 0 },
1190 { PIPE_FORMAT_R8G8B8X8_SRGB, PIPE_FORMAT_B8G8R8X8_SRGB,
1191 DEFAULT_SRGBA_FORMATS }
1192 },
1193 {
1194 { GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
1195 { DEFAULT_SRGBA_FORMATS }
1196 },
1197 {
1198 { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
1199 { PIPE_FORMAT_DXT1_SRGB, PIPE_FORMAT_R8G8B8X8_SRGB,
1200 PIPE_FORMAT_B8G8R8X8_SRGB, DEFAULT_SRGBA_FORMATS }
1201 },
1202 {
1203 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
1204 { PIPE_FORMAT_DXT1_SRGBA, 0 }
1205 },
1206 {
1207 { GL_COMPRESSED_SRGB_ALPHA_EXT,
1208 GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
1209 { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
1210 },
1211 {
1212 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
1213 { PIPE_FORMAT_DXT5_SRGBA, 0 }
1214 },
1215 {
1216 { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
1217 GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
1218 { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
1219 },
1220 {
1221 { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, GL_COMPRESSED_SLUMINANCE_EXT,
1222 0 },
1223 { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
1224 },
1225
1226 /* 16-bit float formats */
1227 {
1228 { GL_RGBA16F_ARB, 0 },
1229 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1230 },
1231 {
1232 { GL_RGB16F_ARB, 0 },
1233 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16X16_FLOAT,
1234 PIPE_FORMAT_R16G16B16A16_FLOAT,
1235 PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1236 },
1237 {
1238 { GL_LUMINANCE_ALPHA16F_ARB, 0 },
1239 { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1240 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1241 },
1242 {
1243 { GL_ALPHA16F_ARB, 0 },
1244 { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1245 PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1246 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1247 },
1248 {
1249 { GL_INTENSITY16F_ARB, 0 },
1250 { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1251 PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1252 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1253 },
1254 {
1255 { GL_LUMINANCE16F_ARB, 0 },
1256 { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
1257 PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1258 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1259 },
1260 {
1261 { GL_R16F, 0 },
1262 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
1263 PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1264 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1265 },
1266 {
1267 { GL_RG16F, 0 },
1268 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
1269 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1270 },
1271
1272 /* 32-bit float formats */
1273 {
1274 { GL_RGBA32F_ARB, 0 },
1275 { PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1276 },
1277 {
1278 { GL_RGB32F_ARB, 0 },
1279 { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32X32_FLOAT,
1280 PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1281 },
1282 {
1283 { GL_LUMINANCE_ALPHA32F_ARB, 0 },
1284 { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1285 },
1286 {
1287 { GL_ALPHA32F_ARB, 0 },
1288 { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1289 PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1290 },
1291 {
1292 { GL_INTENSITY32F_ARB, 0 },
1293 { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1294 PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1295 },
1296 {
1297 { GL_LUMINANCE32F_ARB, 0 },
1298 { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
1299 PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1300 },
1301 {
1302 { GL_R32F, 0 },
1303 { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
1304 PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1305 },
1306 {
1307 { GL_RG32F, 0 },
1308 { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
1309 },
1310
1311 /* R, RG formats */
1312 {
1313 { GL_RED, GL_R8, 0 },
1314 { PIPE_FORMAT_R8_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1315 },
1316 {
1317 { GL_RG, GL_RG8, 0 },
1318 { PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1319 },
1320 {
1321 { GL_R16, 0 },
1322 { PIPE_FORMAT_R16_UNORM, PIPE_FORMAT_R16G16_UNORM,
1323 DEFAULT_UNORM16_RGBA_FORMATS }
1324 },
1325 {
1326 { GL_RG16, 0 },
1327 { PIPE_FORMAT_R16G16_UNORM, DEFAULT_UNORM16_RGBA_FORMATS }
1328 },
1329
1330 /* compressed R, RG formats */
1331 {
1332 { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
1333 { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, DEFAULT_RGBA_FORMATS }
1334 },
1335 {
1336 { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
1337 { PIPE_FORMAT_RGTC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1338 },
1339 {
1340 { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
1341 { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, DEFAULT_RGBA_FORMATS }
1342 },
1343 {
1344 { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
1345 { PIPE_FORMAT_RGTC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1346 },
1347 {
1348 { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
1349 { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGBA_FORMATS }
1350 },
1351 {
1352 { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
1353 { PIPE_FORMAT_LATC1_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1354 },
1355 {
1356 { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
1357 GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
1358 { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
1359 },
1360 {
1361 { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
1362 { PIPE_FORMAT_LATC2_SNORM, DEFAULT_SNORM8_RGBA_FORMATS }
1363 },
1364
1365 /* ETC1 */
1366 {
1367 { GL_ETC1_RGB8_OES, 0 },
1368 { PIPE_FORMAT_ETC1_RGB8, 0 }
1369 },
1370
1371 /* BPTC */
1372 {
1373 { GL_COMPRESSED_RGBA_BPTC_UNORM, 0 },
1374 { PIPE_FORMAT_BPTC_RGBA_UNORM, 0 },
1375 },
1376 {
1377 { GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM, 0 },
1378 { PIPE_FORMAT_BPTC_SRGBA, 0 },
1379 },
1380 {
1381 { GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT, 0 },
1382 { PIPE_FORMAT_BPTC_RGB_FLOAT, 0 },
1383 },
1384 {
1385 { GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT, 0 },
1386 { PIPE_FORMAT_BPTC_RGB_UFLOAT, 0 },
1387 },
1388
1389 /* signed/unsigned integer formats.
1390 */
1391 {
1392 { GL_RGBA_INTEGER_EXT,
1393 GL_BGRA_INTEGER_EXT,
1394 GL_RGBA8I_EXT, 0 },
1395 { PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1396 },
1397 {
1398 { GL_RGB_INTEGER_EXT,
1399 GL_BGR_INTEGER_EXT,
1400 GL_RGB8I_EXT,
1401 GL_BLUE_INTEGER_EXT, 0 },
1402 { PIPE_FORMAT_R8G8B8_SINT, PIPE_FORMAT_R8G8B8X8_SINT,
1403 PIPE_FORMAT_R8G8B8A8_SINT, 0 }
1404 },
1405 {
1406 { GL_ALPHA_INTEGER_EXT,
1407 GL_ALPHA8I_EXT, 0 },
1408 { PIPE_FORMAT_A8_SINT, 0 }
1409 },
1410 {
1411 { GL_ALPHA16I_EXT, 0 },
1412 { PIPE_FORMAT_A16_SINT, 0 }
1413 },
1414 {
1415 { GL_ALPHA32I_EXT, 0 },
1416 { PIPE_FORMAT_A32_SINT, 0 }
1417 },
1418 {
1419 { GL_ALPHA8UI_EXT, 0 },
1420 { PIPE_FORMAT_A8_UINT, 0 }
1421 },
1422 {
1423 { GL_ALPHA16UI_EXT, 0 },
1424 { PIPE_FORMAT_A16_UINT, 0 }
1425 },
1426 {
1427 { GL_ALPHA32UI_EXT, 0 },
1428 { PIPE_FORMAT_A32_UINT, 0 }
1429 },
1430 {
1431 { GL_INTENSITY8I_EXT, 0 },
1432 { PIPE_FORMAT_I8_SINT, 0 }
1433 },
1434 {
1435 { GL_INTENSITY16I_EXT, 0 },
1436 { PIPE_FORMAT_I16_SINT, 0 }
1437 },
1438 {
1439 { GL_INTENSITY32I_EXT, 0 },
1440 { PIPE_FORMAT_I32_SINT, 0 }
1441 },
1442 {
1443 { GL_INTENSITY8UI_EXT, 0 },
1444 { PIPE_FORMAT_I8_UINT, 0 }
1445 },
1446 {
1447 { GL_INTENSITY16UI_EXT, 0 },
1448 { PIPE_FORMAT_I16_UINT, 0 }
1449 },
1450 {
1451 { GL_INTENSITY32UI_EXT, 0 },
1452 { PIPE_FORMAT_I32_UINT, 0 }
1453 },
1454 {
1455 { GL_LUMINANCE8I_EXT, 0 },
1456 { PIPE_FORMAT_L8_SINT, 0 }
1457 },
1458 {
1459 { GL_LUMINANCE16I_EXT, 0 },
1460 { PIPE_FORMAT_L16_SINT, 0 }
1461 },
1462 {
1463 { GL_LUMINANCE32I_EXT, 0 },
1464 { PIPE_FORMAT_L32_SINT, 0 }
1465 },
1466 {
1467 { GL_LUMINANCE_INTEGER_EXT,
1468 GL_LUMINANCE8UI_EXT, 0 },
1469 { PIPE_FORMAT_L8_UINT, 0 }
1470 },
1471 {
1472 { GL_LUMINANCE16UI_EXT, 0 },
1473 { PIPE_FORMAT_L16_UINT, 0 }
1474 },
1475 {
1476 { GL_LUMINANCE32UI_EXT, 0 },
1477 { PIPE_FORMAT_L32_UINT, 0 }
1478 },
1479 {
1480 { GL_LUMINANCE_ALPHA_INTEGER_EXT,
1481 GL_LUMINANCE_ALPHA8I_EXT, 0 },
1482 { PIPE_FORMAT_L8A8_SINT, 0 }
1483 },
1484 {
1485 { GL_LUMINANCE_ALPHA16I_EXT, 0 },
1486 { PIPE_FORMAT_L16A16_SINT, 0 }
1487 },
1488 {
1489 { GL_LUMINANCE_ALPHA32I_EXT, 0 },
1490 { PIPE_FORMAT_L32A32_SINT, 0 }
1491 },
1492 {
1493 { GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1494 { PIPE_FORMAT_L8A8_UINT, 0 }
1495 },
1496 {
1497 { GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1498 { PIPE_FORMAT_L16A16_UINT, 0 }
1499 },
1500 {
1501 { GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1502 { PIPE_FORMAT_L32A32_UINT, 0 }
1503 },
1504 {
1505 { GL_RGB16I_EXT, 0 },
1506 { PIPE_FORMAT_R16G16B16_SINT, PIPE_FORMAT_R16G16B16X16_SINT,
1507 PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1508 },
1509 {
1510 { GL_RGBA16I_EXT, 0 },
1511 { PIPE_FORMAT_R16G16B16A16_SINT, 0 },
1512 },
1513 {
1514 { GL_RGB32I_EXT, 0 },
1515 { PIPE_FORMAT_R32G32B32_SINT, PIPE_FORMAT_R32G32B32X32_SINT,
1516 PIPE_FORMAT_R32G32B32A32_SINT, 0 },
1517 },
1518 {
1519 { GL_RGBA32I_EXT, 0 },
1520 { PIPE_FORMAT_R32G32B32A32_SINT, 0 }
1521 },
1522 {
1523 { GL_RGBA8UI_EXT, 0 },
1524 { PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1525 },
1526 {
1527 { GL_RGB8UI_EXT, 0 },
1528 { PIPE_FORMAT_R8G8B8_UINT, PIPE_FORMAT_R8G8B8X8_UINT,
1529 PIPE_FORMAT_R8G8B8A8_UINT, 0 }
1530 },
1531 {
1532 { GL_RGB16UI_EXT, 0 },
1533 { PIPE_FORMAT_R16G16B16_UINT, PIPE_FORMAT_R16G16B16X16_UINT,
1534 PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1535 },
1536 {
1537 { GL_RGBA16UI_EXT, 0 },
1538 { PIPE_FORMAT_R16G16B16A16_UINT, 0 }
1539 },
1540 {
1541 { GL_RGB32UI_EXT, 0},
1542 { PIPE_FORMAT_R32G32B32_UINT, PIPE_FORMAT_R32G32B32X32_UINT,
1543 PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1544 },
1545 {
1546 { GL_RGBA32UI_EXT, 0},
1547 { PIPE_FORMAT_R32G32B32A32_UINT, 0 }
1548 },
1549 {
1550 { GL_R8I, GL_RED_INTEGER_EXT, 0},
1551 { PIPE_FORMAT_R8_SINT, 0},
1552 },
1553 {
1554 { GL_R16I, 0},
1555 { PIPE_FORMAT_R16_SINT, 0},
1556 },
1557 {
1558 { GL_R32I, 0},
1559 { PIPE_FORMAT_R32_SINT, 0},
1560 },
1561 {
1562 { GL_R8UI, 0},
1563 { PIPE_FORMAT_R8_UINT, 0},
1564 },
1565 {
1566 { GL_R16UI, 0},
1567 { PIPE_FORMAT_R16_UINT, 0},
1568 },
1569 {
1570 { GL_R32UI, 0},
1571 { PIPE_FORMAT_R32_UINT, 0},
1572 },
1573 {
1574 { GL_RG8I, GL_GREEN_INTEGER_EXT, 0},
1575 { PIPE_FORMAT_R8G8_SINT, 0},
1576 },
1577 {
1578 { GL_RG16I, 0},
1579 { PIPE_FORMAT_R16G16_SINT, 0},
1580 },
1581 {
1582 { GL_RG32I, 0},
1583 { PIPE_FORMAT_R32G32_SINT, 0},
1584 },
1585 {
1586 { GL_RG8UI, 0},
1587 { PIPE_FORMAT_R8G8_UINT, 0},
1588 },
1589 {
1590 { GL_RG16UI, 0},
1591 { PIPE_FORMAT_R16G16_UINT, 0},
1592 },
1593 {
1594 { GL_RG32UI, 0},
1595 { PIPE_FORMAT_R32G32_UINT, 0},
1596 },
1597 /* signed normalized formats */
1598 {
1599 { GL_RED_SNORM, GL_R8_SNORM, 0 },
1600 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1601 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1602 },
1603 {
1604 { GL_R16_SNORM, 0 },
1605 { PIPE_FORMAT_R16_SNORM,
1606 PIPE_FORMAT_R16G16_SNORM,
1607 PIPE_FORMAT_R16G16B16A16_SNORM,
1608 PIPE_FORMAT_R8_SNORM,
1609 PIPE_FORMAT_R8G8_SNORM,
1610 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1611 },
1612 {
1613 { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1614 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1615 },
1616 {
1617 { GL_RG16_SNORM, 0 },
1618 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1619 PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1620 },
1621 {
1622 { GL_RGB_SNORM, GL_RGB8_SNORM, 0 },
1623 { PIPE_FORMAT_R8G8B8X8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1624 },
1625 {
1626 { GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1627 { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1628 },
1629 {
1630 { GL_RGB16_SNORM, 0 },
1631 { PIPE_FORMAT_R16G16B16X16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1632 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1633 },
1634 {
1635 { GL_RGBA16_SNORM, 0 },
1636 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1637 },
1638 {
1639 { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1640 { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1641 },
1642 {
1643 { GL_ALPHA16_SNORM, 0 },
1644 { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1645 PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1646 },
1647 {
1648 { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1649 { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1650 },
1651 {
1652 { GL_LUMINANCE16_SNORM, 0 },
1653 { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1654 PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1655 },
1656 {
1657 { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1658 { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1659 },
1660 {
1661 { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
1662 { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1663 PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1664 },
1665 {
1666 { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
1667 { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1668 },
1669 {
1670 { GL_INTENSITY16_SNORM, 0 },
1671 { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1672 PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1673 },
1674 {
1675 { GL_RGB9_E5, 0 },
1676 { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
1677 },
1678 {
1679 { GL_R11F_G11F_B10F, 0 },
1680 { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
1681 },
1682 {
1683 { GL_RGB10_A2UI, 0 },
1684 { PIPE_FORMAT_R10G10B10A2_UINT, PIPE_FORMAT_B10G10R10A2_UINT, 0 }
1685 },
1686 };
1687
1688
1689 /**
1690 * Return first supported format from the given list.
1691 * \param allow_dxt indicates whether it's OK to return a DXT format.
1692 */
1693 static enum pipe_format
1694 find_supported_format(struct pipe_screen *screen,
1695 const enum pipe_format formats[],
1696 enum pipe_texture_target target,
1697 unsigned sample_count,
1698 unsigned tex_usage,
1699 boolean allow_dxt)
1700 {
1701 uint i;
1702 for (i = 0; formats[i]; i++) {
1703 if (screen->is_format_supported(screen, formats[i], target,
1704 sample_count, tex_usage)) {
1705 if (!allow_dxt && util_format_is_s3tc(formats[i])) {
1706 /* we can't return a dxt format, continue searching */
1707 continue;
1708 }
1709
1710 return formats[i];
1711 }
1712 }
1713 return PIPE_FORMAT_NONE;
1714 }
1715
1716 struct exact_format_mapping
1717 {
1718 GLenum format;
1719 GLenum type;
1720 enum pipe_format pformat;
1721 };
1722
1723 static const struct exact_format_mapping rgba8888_tbl[] =
1724 {
1725 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ABGR8888_UNORM },
1726 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_ABGR8888_UNORM },
1727 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBA8888_UNORM },
1728 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBA8888_UNORM },
1729 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_ARGB8888_UNORM },
1730 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRA8888_UNORM },
1731 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
1732 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
1733 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
1734 { 0, 0, 0 }
1735 };
1736
1737 static const struct exact_format_mapping rgbx8888_tbl[] =
1738 {
1739 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XBGR8888_UNORM },
1740 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_XBGR8888_UNORM },
1741 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_RGBX8888_UNORM },
1742 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_RGBX8888_UNORM },
1743 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_XRGB8888_UNORM },
1744 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_BGRX8888_UNORM },
1745 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
1746 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
1747 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
1748 { 0, 0, 0 }
1749 };
1750
1751 static const struct exact_format_mapping rgba1010102_tbl[] =
1752 {
1753 { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
1754 /* No Mesa formats for these Gallium formats:
1755 { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
1756 { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
1757 { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
1758 */
1759 { 0, 0, 0 }
1760 };
1761
1762 /**
1763 * If there is an exact pipe_format match for {internalFormat, format, type}
1764 * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
1765 */
1766 static enum pipe_format
1767 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
1768 {
1769 uint i;
1770 const struct exact_format_mapping* tbl;
1771
1772 if (format == GL_NONE || type == GL_NONE)
1773 return PIPE_FORMAT_NONE;
1774
1775 switch (internalFormat) {
1776 case 4:
1777 case GL_RGBA:
1778 case GL_RGBA8:
1779 tbl = rgba8888_tbl;
1780 break;
1781 case 3:
1782 case GL_RGB:
1783 case GL_RGB8:
1784 tbl = rgbx8888_tbl;
1785 break;
1786 case GL_RGB10_A2:
1787 tbl = rgba1010102_tbl;
1788 break;
1789 default:
1790 return PIPE_FORMAT_NONE;
1791 }
1792
1793 for (i = 0; tbl[i].format; i++)
1794 if (tbl[i].format == format && tbl[i].type == type)
1795 return tbl[i].pformat;
1796
1797 return PIPE_FORMAT_NONE;
1798 }
1799
1800 /**
1801 * Given an OpenGL internalFormat value for a texture or surface, return
1802 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
1803 * This is called during glTexImage2D, for example.
1804 *
1805 * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
1806 * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
1807 * we want render-to-texture ability.
1808 *
1809 * \param internalFormat the user value passed to glTexImage2D
1810 * \param target one of PIPE_TEXTURE_x
1811 * \param bindings bitmask of PIPE_BIND_x flags.
1812 * \param allow_dxt indicates whether it's OK to return a DXT format. This
1813 * only matters when internalFormat names a generic or
1814 * specific compressed format. And that should only happen
1815 * when we're getting called from gl[Copy]TexImage().
1816 */
1817 enum pipe_format
1818 st_choose_format(struct st_context *st, GLenum internalFormat,
1819 GLenum format, GLenum type,
1820 enum pipe_texture_target target, unsigned sample_count,
1821 unsigned bindings, boolean allow_dxt)
1822 {
1823 struct pipe_screen *screen = st->pipe->screen;
1824 unsigned i;
1825 int j;
1826 enum pipe_format pf;
1827
1828 #ifdef DEBUG
1829 {
1830 static boolean firstCall = TRUE;
1831 if (firstCall) {
1832 test_format_conversion(st);
1833 firstCall = FALSE;
1834 }
1835 }
1836 #else
1837 (void) test_format_conversion;
1838 #endif
1839
1840 /* can't render to compressed formats at this time */
1841 if (_mesa_is_compressed_format(st->ctx, internalFormat)
1842 && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
1843 return PIPE_FORMAT_NONE;
1844 }
1845
1846 /* search for exact matches */
1847 pf = find_exact_format(internalFormat, format, type);
1848 if (pf != PIPE_FORMAT_NONE &&
1849 screen->is_format_supported(screen, pf,
1850 target, sample_count, bindings))
1851 return pf;
1852
1853 /* search table for internalFormat */
1854 for (i = 0; i < ARRAY_SIZE(format_map); i++) {
1855 const struct format_mapping *mapping = &format_map[i];
1856 for (j = 0; mapping->glFormats[j]; j++) {
1857 if (mapping->glFormats[j] == internalFormat) {
1858 /* Found the desired internal format. Find first pipe format
1859 * which is supported by the driver.
1860 */
1861 return find_supported_format(screen, mapping->pipeFormats,
1862 target, sample_count, bindings,
1863 allow_dxt);
1864 }
1865 }
1866 }
1867
1868 _mesa_problem(NULL, "unhandled format!\n");
1869 return PIPE_FORMAT_NONE;
1870 }
1871
1872
1873 /**
1874 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
1875 */
1876 enum pipe_format
1877 st_choose_renderbuffer_format(struct st_context *st,
1878 GLenum internalFormat, unsigned sample_count)
1879 {
1880 uint usage;
1881 if (_mesa_is_depth_or_stencil_format(internalFormat))
1882 usage = PIPE_BIND_DEPTH_STENCIL;
1883 else
1884 usage = PIPE_BIND_RENDER_TARGET;
1885 return st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
1886 PIPE_TEXTURE_2D, sample_count, usage, FALSE);
1887 }
1888
1889
1890 /**
1891 * Given an OpenGL user-requested format and type, and swapBytes state,
1892 * return the format which exactly matches those parameters, so that
1893 * a memcpy-based transfer can be done.
1894 *
1895 * If no format is supported, return PIPE_FORMAT_NONE.
1896 */
1897 enum pipe_format
1898 st_choose_matching_format(struct st_context *st, unsigned bind,
1899 GLenum format, GLenum type, GLboolean swapBytes)
1900 {
1901 struct pipe_screen *screen = st->pipe->screen;
1902 mesa_format mesa_format;
1903
1904 for (mesa_format = 1; mesa_format < MESA_FORMAT_COUNT; mesa_format++) {
1905 if (_mesa_get_format_color_encoding(mesa_format) == GL_SRGB) {
1906 continue;
1907 }
1908 if (_mesa_get_format_bits(mesa_format, GL_TEXTURE_INTENSITY_SIZE) > 0) {
1909 /* If `format` is GL_RED/GL_RED_INTEGER, then we might match some
1910 * intensity formats, which we don't want.
1911 */
1912 continue;
1913 }
1914
1915 if (_mesa_format_matches_format_and_type(mesa_format, format, type,
1916 swapBytes, NULL)) {
1917 enum pipe_format format =
1918 st_mesa_format_to_pipe_format(st, mesa_format);
1919
1920 if (format &&
1921 screen->is_format_supported(screen, format, PIPE_TEXTURE_2D, 0,
1922 bind)) {
1923 return format;
1924 }
1925 /* It's unlikely to find 2 matching Mesa formats. */
1926 break;
1927 }
1928 }
1929 return PIPE_FORMAT_NONE;
1930 }
1931
1932
1933 /**
1934 * Called via ctx->Driver.ChooseTextureFormat().
1935 */
1936 mesa_format
1937 st_ChooseTextureFormat(struct gl_context *ctx, GLenum target,
1938 GLint internalFormat,
1939 GLenum format, GLenum type)
1940 {
1941 struct st_context *st = st_context(ctx);
1942 enum pipe_format pFormat;
1943 mesa_format mFormat;
1944 unsigned bindings;
1945 enum pipe_texture_target pTarget = gl_target_to_pipe(target);
1946
1947 if (target == GL_TEXTURE_1D || target == GL_TEXTURE_1D_ARRAY) {
1948 /* We don't do compression for these texture targets because of
1949 * difficulty with sub-texture updates on non-block boundaries, etc.
1950 * So change the internal format request to an uncompressed format.
1951 */
1952 internalFormat =
1953 _mesa_generic_compressed_format_to_uncompressed_format(internalFormat);
1954 }
1955
1956 /* GL textures may wind up being render targets, but we don't know
1957 * that in advance. Specify potential render target flags now for formats
1958 * that we know should always be renderable.
1959 */
1960 bindings = PIPE_BIND_SAMPLER_VIEW;
1961 if (_mesa_is_depth_or_stencil_format(internalFormat))
1962 bindings |= PIPE_BIND_DEPTH_STENCIL;
1963 else if (internalFormat == 3 || internalFormat == 4 ||
1964 internalFormat == GL_RGB || internalFormat == GL_RGBA ||
1965 internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
1966 internalFormat == GL_BGRA)
1967 bindings |= PIPE_BIND_RENDER_TARGET;
1968
1969 /* GLES allows the driver to choose any format which matches
1970 * the format+type combo, because GLES only supports unsized internal
1971 * formats and expects the driver to choose whatever suits it.
1972 */
1973 if (_mesa_is_gles(ctx)) {
1974 GLenum baseFormat = _mesa_base_tex_format(ctx, internalFormat);
1975 GLenum basePackFormat = _mesa_base_pack_format(format);
1976 GLenum iformat = internalFormat;
1977
1978 /* Treat GL_BGRA as GL_RGBA. */
1979 if (iformat == GL_BGRA)
1980 iformat = GL_RGBA;
1981
1982 /* Check if the internalformat is unsized and compatible
1983 * with the "format".
1984 */
1985 if (iformat == baseFormat && iformat == basePackFormat) {
1986 pFormat = st_choose_matching_format(st, bindings, format, type,
1987 ctx->Unpack.SwapBytes);
1988
1989 if (pFormat != PIPE_FORMAT_NONE)
1990 return st_pipe_format_to_mesa_format(pFormat);
1991
1992 /* try choosing format again, this time without render target bindings */
1993 pFormat = st_choose_matching_format(st, PIPE_BIND_SAMPLER_VIEW,
1994 format, type,
1995 ctx->Unpack.SwapBytes);
1996 if (pFormat != PIPE_FORMAT_NONE)
1997 return st_pipe_format_to_mesa_format(pFormat);
1998 }
1999 }
2000
2001 pFormat = st_choose_format(st, internalFormat, format, type,
2002 pTarget, 0, bindings, ctx->Mesa_DXTn);
2003
2004 if (pFormat == PIPE_FORMAT_NONE) {
2005 /* try choosing format again, this time without render target bindings */
2006 pFormat = st_choose_format(st, internalFormat, format, type,
2007 pTarget, 0, PIPE_BIND_SAMPLER_VIEW,
2008 ctx->Mesa_DXTn);
2009 }
2010
2011 if (pFormat == PIPE_FORMAT_NONE) {
2012 /* no luck at all */
2013 return MESA_FORMAT_NONE;
2014 }
2015
2016 mFormat = st_pipe_format_to_mesa_format(pFormat);
2017
2018 /* Debugging aid */
2019 if (0) {
2020 debug_printf("%s(intFormat=%s, format=%s, type=%s) -> %s, %s\n",
2021 __func__,
2022 _mesa_enum_to_string(internalFormat),
2023 _mesa_enum_to_string(format),
2024 _mesa_enum_to_string(type),
2025 util_format_name(pFormat),
2026 _mesa_get_format_name(mFormat));
2027 }
2028
2029 return mFormat;
2030 }
2031
2032
2033 /**
2034 * Called via ctx->Driver.ChooseTextureFormat().
2035 */
2036 size_t
2037 st_QuerySamplesForFormat(struct gl_context *ctx, GLenum target,
2038 GLenum internalFormat, int samples[16])
2039 {
2040 struct st_context *st = st_context(ctx);
2041 enum pipe_format format;
2042 unsigned i, bind, num_sample_counts = 0;
2043
2044 (void) target;
2045
2046 if (_mesa_is_depth_or_stencil_format(internalFormat))
2047 bind = PIPE_BIND_DEPTH_STENCIL;
2048 else
2049 bind = PIPE_BIND_RENDER_TARGET;
2050
2051 /* If an sRGB framebuffer is unsupported, sRGB formats behave like linear
2052 * formats.
2053 */
2054 if (!ctx->Extensions.EXT_framebuffer_sRGB) {
2055 internalFormat = _mesa_get_linear_internalformat(internalFormat);
2056 }
2057
2058 /* Set sample counts in descending order. */
2059 for (i = 16; i > 1; i--) {
2060 format = st_choose_format(st, internalFormat, GL_NONE, GL_NONE,
2061 PIPE_TEXTURE_2D, i, bind, FALSE);
2062
2063 if (format != PIPE_FORMAT_NONE) {
2064 samples[num_sample_counts++] = i;
2065 }
2066 }
2067
2068 if (!num_sample_counts) {
2069 samples[num_sample_counts++] = 1;
2070 }
2071
2072 return num_sample_counts;
2073 }
2074
2075
2076 /**
2077 * This is used for translating texture border color and the clear
2078 * color. For example, the clear color is interpreted according to
2079 * the renderbuffer's base format. For example, if clearing a
2080 * GL_LUMINANCE buffer, we'll return colorOut[0] = colorOut[1] =
2081 * colorOut[2] = colorIn[0].
2082 * Similarly for texture border colors.
2083 */
2084 void
2085 st_translate_color(const union gl_color_union *colorIn,
2086 union pipe_color_union *colorOut,
2087 GLenum baseFormat, GLboolean is_integer)
2088 {
2089 if (is_integer) {
2090 const int *in = colorIn->i;
2091 int *out = colorOut->i;
2092
2093 switch (baseFormat) {
2094 case GL_RED:
2095 out[0] = in[0];
2096 out[1] = 0;
2097 out[2] = 0;
2098 out[3] = 1;
2099 break;
2100 case GL_RG:
2101 out[0] = in[0];
2102 out[1] = in[1];
2103 out[2] = 0;
2104 out[3] = 1;
2105 break;
2106 case GL_RGB:
2107 out[0] = in[0];
2108 out[1] = in[1];
2109 out[2] = in[2];
2110 out[3] = 1;
2111 break;
2112 case GL_ALPHA:
2113 out[0] = out[1] = out[2] = 0;
2114 out[3] = in[3];
2115 break;
2116 case GL_LUMINANCE:
2117 out[0] = out[1] = out[2] = in[0];
2118 out[3] = 1;
2119 break;
2120 case GL_LUMINANCE_ALPHA:
2121 out[0] = out[1] = out[2] = in[0];
2122 out[3] = in[3];
2123 break;
2124 case GL_INTENSITY:
2125 out[0] = out[1] = out[2] = out[3] = in[0];
2126 break;
2127 default:
2128 COPY_4V(out, in);
2129 }
2130 }
2131 else {
2132 const float *in = colorIn->f;
2133 float *out = colorOut->f;
2134
2135 switch (baseFormat) {
2136 case GL_RED:
2137 out[0] = in[0];
2138 out[1] = 0.0F;
2139 out[2] = 0.0F;
2140 out[3] = 1.0F;
2141 break;
2142 case GL_RG:
2143 out[0] = in[0];
2144 out[1] = in[1];
2145 out[2] = 0.0F;
2146 out[3] = 1.0F;
2147 break;
2148 case GL_RGB:
2149 out[0] = in[0];
2150 out[1] = in[1];
2151 out[2] = in[2];
2152 out[3] = 1.0F;
2153 break;
2154 case GL_ALPHA:
2155 out[0] = out[1] = out[2] = 0.0F;
2156 out[3] = in[3];
2157 break;
2158 case GL_LUMINANCE:
2159 out[0] = out[1] = out[2] = in[0];
2160 out[3] = 1.0F;
2161 break;
2162 case GL_LUMINANCE_ALPHA:
2163 out[0] = out[1] = out[2] = in[0];
2164 out[3] = in[3];
2165 break;
2166 case GL_INTENSITY:
2167 out[0] = out[1] = out[2] = out[3] = in[0];
2168 break;
2169 default:
2170 COPY_4V(out, in);
2171 }
2172 }
2173 }