1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright (c) 2008-2010 VMware, Inc.
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:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
31 * Mesa / Gallium format conversion and format selection code.
35 #include "main/imports.h"
36 #include "main/context.h"
37 #include "main/texstore.h"
38 #include "main/image.h"
39 #include "main/macros.h"
40 #include "main/mfeatures.h"
42 #include "pipe/p_context.h"
43 #include "pipe/p_defines.h"
44 #include "pipe/p_screen.h"
45 #include "util/u_format.h"
46 #include "st_context.h"
47 #include "st_format.h"
51 format_max_bits(enum pipe_format format)
53 GLuint size = util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 0);
55 size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 1));
56 size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 2));
57 size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_RGB, 3));
58 size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 0));
59 size = MAX2(size, util_format_get_component_bits(format, UTIL_FORMAT_COLORSPACE_ZS, 1));
65 * Return basic GL datatype for the given gallium format.
68 st_format_datatype(enum pipe_format format)
70 const struct util_format_description *desc;
73 desc = util_format_description(format);
76 /* Find the first non-VOID channel. */
77 for (i = 0; i < 4; i++) {
78 if (desc->channel[i].type != UTIL_FORMAT_TYPE_VOID) {
83 if (desc->layout == UTIL_FORMAT_LAYOUT_PLAIN) {
84 if (format == PIPE_FORMAT_B5G5R5A1_UNORM ||
85 format == PIPE_FORMAT_B5G6R5_UNORM) {
86 return GL_UNSIGNED_SHORT;
88 else if (format == PIPE_FORMAT_R11G11B10_FLOAT ||
89 format == PIPE_FORMAT_R9G9B9E5_FLOAT) {
92 else if (format == PIPE_FORMAT_Z24_UNORM_S8_USCALED ||
93 format == PIPE_FORMAT_S8_USCALED_Z24_UNORM ||
94 format == PIPE_FORMAT_Z24X8_UNORM ||
95 format == PIPE_FORMAT_X8Z24_UNORM) {
96 return GL_UNSIGNED_INT_24_8;
99 const GLuint size = format_max_bits(format);
106 if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED)
107 return GL_UNSIGNED_BYTE;
111 else if (size == 16) {
112 if (desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT)
113 return GL_HALF_FLOAT;
114 if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED)
115 return GL_UNSIGNED_SHORT;
119 else if (size <= 32) {
120 if (desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT)
122 if (desc->channel[i].type == UTIL_FORMAT_TYPE_UNSIGNED)
123 return GL_UNSIGNED_INT;
129 assert(desc->channel[i].type == UTIL_FORMAT_TYPE_FLOAT);
134 else if (format == PIPE_FORMAT_UYVY) {
135 return GL_UNSIGNED_SHORT;
137 else if (format == PIPE_FORMAT_YUYV) {
138 return GL_UNSIGNED_SHORT;
141 /* probably a compressed format, unsupported anyway */
148 * Translate Mesa format to Gallium format.
151 st_mesa_format_to_pipe_format(gl_format mesaFormat)
153 switch (mesaFormat) {
154 case MESA_FORMAT_RGBA8888:
155 return PIPE_FORMAT_A8B8G8R8_UNORM;
156 case MESA_FORMAT_RGBA8888_REV:
157 return PIPE_FORMAT_R8G8B8A8_UNORM;
158 case MESA_FORMAT_ARGB8888:
159 return PIPE_FORMAT_B8G8R8A8_UNORM;
160 case MESA_FORMAT_ARGB8888_REV:
161 return PIPE_FORMAT_A8R8G8B8_UNORM;
162 case MESA_FORMAT_XRGB8888:
163 return PIPE_FORMAT_B8G8R8X8_UNORM;
164 case MESA_FORMAT_XRGB8888_REV:
165 return PIPE_FORMAT_X8R8G8B8_UNORM;
166 case MESA_FORMAT_ARGB1555:
167 return PIPE_FORMAT_B5G5R5A1_UNORM;
168 case MESA_FORMAT_ARGB4444:
169 return PIPE_FORMAT_B4G4R4A4_UNORM;
170 case MESA_FORMAT_RGB565:
171 return PIPE_FORMAT_B5G6R5_UNORM;
172 case MESA_FORMAT_RGB332:
173 return PIPE_FORMAT_B2G3R3_UNORM;
174 case MESA_FORMAT_ARGB2101010:
175 return PIPE_FORMAT_B10G10R10A2_UNORM;
176 case MESA_FORMAT_AL44:
177 return PIPE_FORMAT_L4A4_UNORM;
178 case MESA_FORMAT_AL88:
179 return PIPE_FORMAT_L8A8_UNORM;
180 case MESA_FORMAT_AL1616:
181 return PIPE_FORMAT_L16A16_UNORM;
183 return PIPE_FORMAT_A8_UNORM;
184 case MESA_FORMAT_A16:
185 return PIPE_FORMAT_A16_UNORM;
187 return PIPE_FORMAT_L8_UNORM;
188 case MESA_FORMAT_L16:
189 return PIPE_FORMAT_L16_UNORM;
191 return PIPE_FORMAT_I8_UNORM;
192 case MESA_FORMAT_I16:
193 return PIPE_FORMAT_I16_UNORM;
194 case MESA_FORMAT_Z16:
195 return PIPE_FORMAT_Z16_UNORM;
196 case MESA_FORMAT_Z32:
197 return PIPE_FORMAT_Z32_UNORM;
198 case MESA_FORMAT_Z24_S8:
199 return PIPE_FORMAT_S8_USCALED_Z24_UNORM;
200 case MESA_FORMAT_S8_Z24:
201 return PIPE_FORMAT_Z24_UNORM_S8_USCALED;
202 case MESA_FORMAT_Z24_X8:
203 return PIPE_FORMAT_X8Z24_UNORM;
204 case MESA_FORMAT_X8_Z24:
205 return PIPE_FORMAT_Z24X8_UNORM;
207 return PIPE_FORMAT_S8_USCALED;
208 case MESA_FORMAT_YCBCR:
209 return PIPE_FORMAT_UYVY;
210 #if FEATURE_texture_s3tc
211 case MESA_FORMAT_RGB_DXT1:
212 return PIPE_FORMAT_DXT1_RGB;
213 case MESA_FORMAT_RGBA_DXT1:
214 return PIPE_FORMAT_DXT1_RGBA;
215 case MESA_FORMAT_RGBA_DXT3:
216 return PIPE_FORMAT_DXT3_RGBA;
217 case MESA_FORMAT_RGBA_DXT5:
218 return PIPE_FORMAT_DXT5_RGBA;
219 #if FEATURE_EXT_texture_sRGB
220 case MESA_FORMAT_SRGB_DXT1:
221 return PIPE_FORMAT_DXT1_SRGB;
222 case MESA_FORMAT_SRGBA_DXT1:
223 return PIPE_FORMAT_DXT1_SRGBA;
224 case MESA_FORMAT_SRGBA_DXT3:
225 return PIPE_FORMAT_DXT3_SRGBA;
226 case MESA_FORMAT_SRGBA_DXT5:
227 return PIPE_FORMAT_DXT5_SRGBA;
230 #if FEATURE_EXT_texture_sRGB
231 case MESA_FORMAT_SLA8:
232 return PIPE_FORMAT_L8A8_SRGB;
233 case MESA_FORMAT_SL8:
234 return PIPE_FORMAT_L8_SRGB;
235 case MESA_FORMAT_SRGB8:
236 return PIPE_FORMAT_R8G8B8_SRGB;
237 case MESA_FORMAT_SRGBA8:
238 return PIPE_FORMAT_A8B8G8R8_SRGB;
239 case MESA_FORMAT_SARGB8:
240 return PIPE_FORMAT_B8G8R8A8_SRGB;
242 case MESA_FORMAT_RGBA_FLOAT32:
243 return PIPE_FORMAT_R32G32B32A32_FLOAT;
244 case MESA_FORMAT_RGBA_FLOAT16:
245 return PIPE_FORMAT_R16G16B16A16_FLOAT;
246 case MESA_FORMAT_RGB_FLOAT32:
247 return PIPE_FORMAT_R32G32B32_FLOAT;
248 case MESA_FORMAT_RGB_FLOAT16:
249 return PIPE_FORMAT_R16G16B16_FLOAT;
250 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32:
251 return PIPE_FORMAT_L32A32_FLOAT;
252 case MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16:
253 return PIPE_FORMAT_L16A16_FLOAT;
254 case MESA_FORMAT_LUMINANCE_FLOAT32:
255 return PIPE_FORMAT_L32_FLOAT;
256 case MESA_FORMAT_LUMINANCE_FLOAT16:
257 return PIPE_FORMAT_L16_FLOAT;
258 case MESA_FORMAT_ALPHA_FLOAT32:
259 return PIPE_FORMAT_A32_FLOAT;
260 case MESA_FORMAT_ALPHA_FLOAT16:
261 return PIPE_FORMAT_A16_FLOAT;
262 case MESA_FORMAT_INTENSITY_FLOAT32:
263 return PIPE_FORMAT_I32_FLOAT;
264 case MESA_FORMAT_INTENSITY_FLOAT16:
265 return PIPE_FORMAT_I16_FLOAT;
266 case MESA_FORMAT_R_FLOAT32:
267 return PIPE_FORMAT_R32_FLOAT;
268 case MESA_FORMAT_R_FLOAT16:
269 return PIPE_FORMAT_R16_FLOAT;
270 case MESA_FORMAT_RG_FLOAT32:
271 return PIPE_FORMAT_R32G32_FLOAT;
272 case MESA_FORMAT_RG_FLOAT16:
273 return PIPE_FORMAT_R16G16_FLOAT;
276 return PIPE_FORMAT_R8_UNORM;
277 case MESA_FORMAT_R16:
278 return PIPE_FORMAT_R16_UNORM;
279 case MESA_FORMAT_RG88:
280 return PIPE_FORMAT_R8G8_UNORM;
281 case MESA_FORMAT_RG1616:
282 return PIPE_FORMAT_R16G16_UNORM;
283 case MESA_FORMAT_RGBA_16:
284 return PIPE_FORMAT_R16G16B16A16_UNORM;
286 /* signed int formats */
287 case MESA_FORMAT_RGBA_INT8:
288 return PIPE_FORMAT_R8G8B8A8_SSCALED;
289 case MESA_FORMAT_RGBA_INT16:
290 return PIPE_FORMAT_R16G16B16A16_SSCALED;
291 case MESA_FORMAT_RGBA_INT32:
292 return PIPE_FORMAT_R32G32B32A32_SSCALED;
294 /* unsigned int formats */
295 case MESA_FORMAT_RGBA_UINT8:
296 return PIPE_FORMAT_R8G8B8A8_USCALED;
297 case MESA_FORMAT_RGBA_UINT16:
298 return PIPE_FORMAT_R16G16B16A16_USCALED;
299 case MESA_FORMAT_RGBA_UINT32:
300 return PIPE_FORMAT_R32G32B32A32_USCALED;
302 case MESA_FORMAT_RED_RGTC1:
303 return PIPE_FORMAT_RGTC1_UNORM;
304 case MESA_FORMAT_SIGNED_RED_RGTC1:
305 return PIPE_FORMAT_RGTC1_SNORM;
306 case MESA_FORMAT_RG_RGTC2:
307 return PIPE_FORMAT_RGTC2_UNORM;
308 case MESA_FORMAT_SIGNED_RG_RGTC2:
309 return PIPE_FORMAT_RGTC2_SNORM;
311 case MESA_FORMAT_L_LATC1:
312 return PIPE_FORMAT_LATC1_UNORM;
313 case MESA_FORMAT_SIGNED_L_LATC1:
314 return PIPE_FORMAT_LATC1_SNORM;
315 case MESA_FORMAT_LA_LATC2:
316 return PIPE_FORMAT_LATC2_UNORM;
317 case MESA_FORMAT_SIGNED_LA_LATC2:
318 return PIPE_FORMAT_LATC2_SNORM;
320 /* signed normalized formats */
321 case MESA_FORMAT_SIGNED_R8:
322 return PIPE_FORMAT_R8_SNORM;
323 case MESA_FORMAT_SIGNED_RG88_REV:
324 return PIPE_FORMAT_R8G8_SNORM;
325 case MESA_FORMAT_SIGNED_RGBA8888_REV:
326 return PIPE_FORMAT_R8G8B8A8_SNORM;
328 case MESA_FORMAT_SIGNED_A8:
329 return PIPE_FORMAT_A8_SNORM;
330 case MESA_FORMAT_SIGNED_L8:
331 return PIPE_FORMAT_L8_SNORM;
332 case MESA_FORMAT_SIGNED_AL88:
333 return PIPE_FORMAT_L8A8_SNORM;
334 case MESA_FORMAT_SIGNED_I8:
335 return PIPE_FORMAT_I8_SNORM;
337 case MESA_FORMAT_SIGNED_R16:
338 return PIPE_FORMAT_R16_SNORM;
339 case MESA_FORMAT_SIGNED_GR1616:
340 return PIPE_FORMAT_R16G16_SNORM;
341 case MESA_FORMAT_SIGNED_RGBA_16:
342 return PIPE_FORMAT_R16G16B16A16_SNORM;
344 case MESA_FORMAT_SIGNED_A16:
345 return PIPE_FORMAT_A16_SNORM;
346 case MESA_FORMAT_SIGNED_L16:
347 return PIPE_FORMAT_L16_SNORM;
348 case MESA_FORMAT_SIGNED_AL1616:
349 return PIPE_FORMAT_L16A16_SNORM;
350 case MESA_FORMAT_SIGNED_I16:
351 return PIPE_FORMAT_I16_SNORM;
353 case MESA_FORMAT_RGB9_E5_FLOAT:
354 return PIPE_FORMAT_R9G9B9E5_FLOAT;
355 case MESA_FORMAT_R11_G11_B10_FLOAT:
356 return PIPE_FORMAT_R11G11B10_FLOAT;
360 return PIPE_FORMAT_NONE;
366 * Translate Gallium format to Mesa format.
369 st_pipe_format_to_mesa_format(enum pipe_format format)
372 case PIPE_FORMAT_A8B8G8R8_UNORM:
373 return MESA_FORMAT_RGBA8888;
374 case PIPE_FORMAT_R8G8B8A8_UNORM:
375 return MESA_FORMAT_RGBA8888_REV;
376 case PIPE_FORMAT_B8G8R8A8_UNORM:
377 return MESA_FORMAT_ARGB8888;
378 case PIPE_FORMAT_A8R8G8B8_UNORM:
379 return MESA_FORMAT_ARGB8888_REV;
380 case PIPE_FORMAT_B8G8R8X8_UNORM:
381 return MESA_FORMAT_XRGB8888;
382 case PIPE_FORMAT_X8R8G8B8_UNORM:
383 return MESA_FORMAT_XRGB8888_REV;
384 case PIPE_FORMAT_B5G5R5A1_UNORM:
385 return MESA_FORMAT_ARGB1555;
386 case PIPE_FORMAT_B4G4R4A4_UNORM:
387 return MESA_FORMAT_ARGB4444;
388 case PIPE_FORMAT_B5G6R5_UNORM:
389 return MESA_FORMAT_RGB565;
390 case PIPE_FORMAT_B2G3R3_UNORM:
391 return MESA_FORMAT_RGB332;
392 case PIPE_FORMAT_B10G10R10A2_UNORM:
393 return MESA_FORMAT_ARGB2101010;
394 case PIPE_FORMAT_L4A4_UNORM:
395 return MESA_FORMAT_AL44;
396 case PIPE_FORMAT_L8A8_UNORM:
397 return MESA_FORMAT_AL88;
398 case PIPE_FORMAT_L16A16_UNORM:
399 return MESA_FORMAT_AL1616;
400 case PIPE_FORMAT_A8_UNORM:
401 return MESA_FORMAT_A8;
402 case PIPE_FORMAT_A16_UNORM:
403 return MESA_FORMAT_A16;
404 case PIPE_FORMAT_L8_UNORM:
405 return MESA_FORMAT_L8;
406 case PIPE_FORMAT_L16_UNORM:
407 return MESA_FORMAT_L16;
408 case PIPE_FORMAT_I8_UNORM:
409 return MESA_FORMAT_I8;
410 case PIPE_FORMAT_I16_UNORM:
411 return MESA_FORMAT_I16;
412 case PIPE_FORMAT_S8_USCALED:
413 return MESA_FORMAT_S8;
415 case PIPE_FORMAT_R16G16B16A16_UNORM:
416 return MESA_FORMAT_RGBA_16;
418 case PIPE_FORMAT_Z16_UNORM:
419 return MESA_FORMAT_Z16;
420 case PIPE_FORMAT_Z32_UNORM:
421 return MESA_FORMAT_Z32;
422 case PIPE_FORMAT_S8_USCALED_Z24_UNORM:
423 return MESA_FORMAT_Z24_S8;
424 case PIPE_FORMAT_X8Z24_UNORM:
425 return MESA_FORMAT_Z24_X8;
426 case PIPE_FORMAT_Z24X8_UNORM:
427 return MESA_FORMAT_X8_Z24;
428 case PIPE_FORMAT_Z24_UNORM_S8_USCALED:
429 return MESA_FORMAT_S8_Z24;
431 case PIPE_FORMAT_UYVY:
432 return MESA_FORMAT_YCBCR;
433 case PIPE_FORMAT_YUYV:
434 return MESA_FORMAT_YCBCR_REV;
436 #if FEATURE_texture_s3tc
437 case PIPE_FORMAT_DXT1_RGB:
438 return MESA_FORMAT_RGB_DXT1;
439 case PIPE_FORMAT_DXT1_RGBA:
440 return MESA_FORMAT_RGBA_DXT1;
441 case PIPE_FORMAT_DXT3_RGBA:
442 return MESA_FORMAT_RGBA_DXT3;
443 case PIPE_FORMAT_DXT5_RGBA:
444 return MESA_FORMAT_RGBA_DXT5;
445 #if FEATURE_EXT_texture_sRGB
446 case PIPE_FORMAT_DXT1_SRGB:
447 return MESA_FORMAT_SRGB_DXT1;
448 case PIPE_FORMAT_DXT1_SRGBA:
449 return MESA_FORMAT_SRGBA_DXT1;
450 case PIPE_FORMAT_DXT3_SRGBA:
451 return MESA_FORMAT_SRGBA_DXT3;
452 case PIPE_FORMAT_DXT5_SRGBA:
453 return MESA_FORMAT_SRGBA_DXT5;
457 #if FEATURE_EXT_texture_sRGB
458 case PIPE_FORMAT_L8A8_SRGB:
459 return MESA_FORMAT_SLA8;
460 case PIPE_FORMAT_L8_SRGB:
461 return MESA_FORMAT_SL8;
462 case PIPE_FORMAT_R8G8B8_SRGB:
463 return MESA_FORMAT_SRGB8;
464 case PIPE_FORMAT_A8B8G8R8_SRGB:
465 return MESA_FORMAT_SRGBA8;
466 case PIPE_FORMAT_B8G8R8A8_SRGB:
467 return MESA_FORMAT_SARGB8;
469 case PIPE_FORMAT_R32G32B32A32_FLOAT:
470 return MESA_FORMAT_RGBA_FLOAT32;
471 case PIPE_FORMAT_R16G16B16A16_FLOAT:
472 return MESA_FORMAT_RGBA_FLOAT16;
473 case PIPE_FORMAT_R32G32B32_FLOAT:
474 return MESA_FORMAT_RGB_FLOAT32;
475 case PIPE_FORMAT_R16G16B16_FLOAT:
476 return MESA_FORMAT_RGB_FLOAT16;
477 case PIPE_FORMAT_L32A32_FLOAT:
478 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32;
479 case PIPE_FORMAT_L16A16_FLOAT:
480 return MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16;
481 case PIPE_FORMAT_L32_FLOAT:
482 return MESA_FORMAT_LUMINANCE_FLOAT32;
483 case PIPE_FORMAT_L16_FLOAT:
484 return MESA_FORMAT_LUMINANCE_FLOAT16;
485 case PIPE_FORMAT_A32_FLOAT:
486 return MESA_FORMAT_ALPHA_FLOAT32;
487 case PIPE_FORMAT_A16_FLOAT:
488 return MESA_FORMAT_ALPHA_FLOAT16;
489 case PIPE_FORMAT_I32_FLOAT:
490 return MESA_FORMAT_INTENSITY_FLOAT32;
491 case PIPE_FORMAT_I16_FLOAT:
492 return MESA_FORMAT_INTENSITY_FLOAT16;
493 case PIPE_FORMAT_R32_FLOAT:
494 return MESA_FORMAT_R_FLOAT32;
495 case PIPE_FORMAT_R16_FLOAT:
496 return MESA_FORMAT_R_FLOAT16;
497 case PIPE_FORMAT_R32G32_FLOAT:
498 return MESA_FORMAT_RG_FLOAT32;
499 case PIPE_FORMAT_R16G16_FLOAT:
500 return MESA_FORMAT_RG_FLOAT16;
502 case PIPE_FORMAT_R8_UNORM:
503 return MESA_FORMAT_R8;
504 case PIPE_FORMAT_R16_UNORM:
505 return MESA_FORMAT_R16;
506 case PIPE_FORMAT_R8G8_UNORM:
507 return MESA_FORMAT_RG88;
508 case PIPE_FORMAT_R16G16_UNORM:
509 return MESA_FORMAT_RG1616;
511 /* signed int formats */
512 case PIPE_FORMAT_R8G8B8A8_SSCALED:
513 return MESA_FORMAT_RGBA_INT8;
514 case PIPE_FORMAT_R16G16B16A16_SSCALED:
515 return MESA_FORMAT_RGBA_INT16;
516 case PIPE_FORMAT_R32G32B32A32_SSCALED:
517 return MESA_FORMAT_RGBA_INT32;
519 /* unsigned int formats */
520 case PIPE_FORMAT_R8G8B8A8_USCALED:
521 return MESA_FORMAT_RGBA_UINT8;
522 case PIPE_FORMAT_R16G16B16A16_USCALED:
523 return MESA_FORMAT_RGBA_UINT16;
524 case PIPE_FORMAT_R32G32B32A32_USCALED:
525 return MESA_FORMAT_RGBA_UINT32;
527 case PIPE_FORMAT_RGTC1_UNORM:
528 return MESA_FORMAT_RED_RGTC1;
529 case PIPE_FORMAT_RGTC1_SNORM:
530 return MESA_FORMAT_SIGNED_RED_RGTC1;
531 case PIPE_FORMAT_RGTC2_UNORM:
532 return MESA_FORMAT_RG_RGTC2;
533 case PIPE_FORMAT_RGTC2_SNORM:
534 return MESA_FORMAT_SIGNED_RG_RGTC2;
536 case PIPE_FORMAT_LATC1_UNORM:
537 return MESA_FORMAT_L_LATC1;
538 case PIPE_FORMAT_LATC1_SNORM:
539 return MESA_FORMAT_SIGNED_L_LATC1;
540 case PIPE_FORMAT_LATC2_UNORM:
541 return MESA_FORMAT_LA_LATC2;
542 case PIPE_FORMAT_LATC2_SNORM:
543 return MESA_FORMAT_SIGNED_LA_LATC2;
545 /* signed normalized formats */
546 case PIPE_FORMAT_R8_SNORM:
547 return MESA_FORMAT_SIGNED_R8;
548 case PIPE_FORMAT_R8G8_SNORM:
549 return MESA_FORMAT_SIGNED_RG88_REV;
550 case PIPE_FORMAT_R8G8B8A8_SNORM:
551 return MESA_FORMAT_SIGNED_RGBA8888_REV;
553 case PIPE_FORMAT_A8_SNORM:
554 return MESA_FORMAT_SIGNED_A8;
555 case PIPE_FORMAT_L8_SNORM:
556 return MESA_FORMAT_SIGNED_L8;
557 case PIPE_FORMAT_L8A8_SNORM:
558 return MESA_FORMAT_SIGNED_AL88;
559 case PIPE_FORMAT_I8_SNORM:
560 return MESA_FORMAT_SIGNED_I8;
562 case PIPE_FORMAT_R16_SNORM:
563 return MESA_FORMAT_SIGNED_R16;
564 case PIPE_FORMAT_R16G16_SNORM:
565 return MESA_FORMAT_SIGNED_GR1616;
566 case PIPE_FORMAT_R16G16B16A16_SNORM:
567 return MESA_FORMAT_SIGNED_RGBA_16;
569 case PIPE_FORMAT_A16_SNORM:
570 return MESA_FORMAT_SIGNED_A16;
571 case PIPE_FORMAT_L16_SNORM:
572 return MESA_FORMAT_SIGNED_L16;
573 case PIPE_FORMAT_L16A16_SNORM:
574 return MESA_FORMAT_SIGNED_AL1616;
575 case PIPE_FORMAT_I16_SNORM:
576 return MESA_FORMAT_SIGNED_I16;
578 case PIPE_FORMAT_R9G9B9E5_FLOAT:
579 return MESA_FORMAT_RGB9_E5_FLOAT;
580 case PIPE_FORMAT_R11G11B10_FLOAT:
581 return MESA_FORMAT_R11_G11_B10_FLOAT;
585 return MESA_FORMAT_NONE;
591 * Map GL texture formats to Gallium pipe formats.
593 struct format_mapping
595 GLenum glFormats[18]; /**< list of GLenum formats, 0-terminated */
596 enum pipe_format pipeFormats[10]; /**< list of pipe formats, 0-terminated */
600 #define DEFAULT_RGBA_FORMATS \
601 PIPE_FORMAT_B8G8R8A8_UNORM, \
602 PIPE_FORMAT_A8R8G8B8_UNORM, \
603 PIPE_FORMAT_A8B8G8R8_UNORM, \
604 PIPE_FORMAT_B5G6R5_UNORM, \
607 #define DEFAULT_RGB_FORMATS \
608 PIPE_FORMAT_B8G8R8X8_UNORM, \
609 PIPE_FORMAT_X8R8G8B8_UNORM, \
610 PIPE_FORMAT_X8B8G8R8_UNORM, \
611 PIPE_FORMAT_B8G8R8A8_UNORM, \
612 PIPE_FORMAT_A8R8G8B8_UNORM, \
613 PIPE_FORMAT_A8B8G8R8_UNORM, \
614 PIPE_FORMAT_B5G6R5_UNORM, \
617 #define DEFAULT_SRGBA_FORMATS \
618 PIPE_FORMAT_B8G8R8A8_SRGB, \
619 PIPE_FORMAT_A8R8G8B8_SRGB, \
620 PIPE_FORMAT_A8B8G8R8_SRGB, \
623 #define DEFAULT_DEPTH_FORMATS \
624 PIPE_FORMAT_Z24X8_UNORM, \
625 PIPE_FORMAT_X8Z24_UNORM, \
626 PIPE_FORMAT_Z16_UNORM, \
627 PIPE_FORMAT_Z24_UNORM_S8_USCALED, \
628 PIPE_FORMAT_S8_USCALED_Z24_UNORM, \
632 * This table maps OpenGL texture format enums to Gallium pipe_format enums.
633 * Multiple GL enums might map to multiple pipe_formats.
634 * The first pipe format in the list that's supported is the one that's chosen.
636 static const struct format_mapping format_map[] = {
637 /* Basic RGB, RGBA formats */
639 { GL_RGB10, GL_RGB10_A2, 0 },
640 { PIPE_FORMAT_B10G10R10A2_UNORM, DEFAULT_RGBA_FORMATS }
643 { 4, GL_RGBA, GL_RGBA8, 0 },
644 { PIPE_FORMAT_R8G8B8A8_UNORM, DEFAULT_RGBA_FORMATS }
648 { PIPE_FORMAT_B8G8R8A8_UNORM, DEFAULT_RGBA_FORMATS }
651 { 3, GL_RGB, GL_RGB8, 0 },
652 { DEFAULT_RGB_FORMATS }
655 { GL_RGB12, GL_RGB16, GL_RGBA12, GL_RGBA16, 0 },
656 { PIPE_FORMAT_R16G16B16A16_UNORM, DEFAULT_RGBA_FORMATS }
659 { GL_RGBA4, GL_RGBA2, 0 },
660 { PIPE_FORMAT_B4G4R4A4_UNORM, DEFAULT_RGBA_FORMATS }
664 { PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
668 { PIPE_FORMAT_B2G3R3_UNORM, PIPE_FORMAT_B5G6R5_UNORM,
669 PIPE_FORMAT_B5G5R5A1_UNORM, DEFAULT_RGBA_FORMATS }
672 { GL_RGB5, GL_RGB4 },
673 { PIPE_FORMAT_B5G6R5_UNORM, PIPE_FORMAT_B5G5R5A1_UNORM,
674 DEFAULT_RGBA_FORMATS }
677 /* basic Alpha formats */
679 { GL_ALPHA12, GL_ALPHA16, 0 },
680 { PIPE_FORMAT_A16_UNORM, PIPE_FORMAT_A8_UNORM,
681 DEFAULT_RGBA_FORMATS }
684 { GL_ALPHA, GL_ALPHA4, GL_ALPHA8, GL_COMPRESSED_ALPHA, 0 },
685 { PIPE_FORMAT_A8_UNORM, DEFAULT_RGBA_FORMATS }
688 /* basic Luminance formats */
690 { GL_LUMINANCE12, GL_LUMINANCE16, 0 },
691 { PIPE_FORMAT_L16_UNORM, PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
694 { 1, GL_LUMINANCE, GL_LUMINANCE4, GL_LUMINANCE8, 0 },
695 { PIPE_FORMAT_L8_UNORM, DEFAULT_RGB_FORMATS }
698 /* basic Luminance/Alpha formats */
700 { GL_LUMINANCE12_ALPHA4, GL_LUMINANCE12_ALPHA12,
701 GL_LUMINANCE16_ALPHA16, 0},
702 { PIPE_FORMAT_L16A16_UNORM, PIPE_FORMAT_L8A8_UNORM,
703 DEFAULT_RGBA_FORMATS }
706 { 2, GL_LUMINANCE_ALPHA, GL_LUMINANCE6_ALPHA2, GL_LUMINANCE8_ALPHA8, 0 },
707 { PIPE_FORMAT_L8A8_UNORM, DEFAULT_RGBA_FORMATS }
710 { GL_LUMINANCE4_ALPHA4, 0 },
711 { PIPE_FORMAT_L4A4_UNORM, PIPE_FORMAT_L8A8_UNORM,
712 DEFAULT_RGBA_FORMATS }
715 /* basic Intensity formats */
717 { GL_INTENSITY12, GL_INTENSITY16, 0 },
718 { PIPE_FORMAT_I16_UNORM, PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
721 { GL_INTENSITY, GL_INTENSITY4, GL_INTENSITY8,
722 GL_COMPRESSED_INTENSITY, 0 },
723 { PIPE_FORMAT_I8_UNORM, DEFAULT_RGBA_FORMATS }
728 { GL_YCBCR_MESA, 0 },
729 { PIPE_FORMAT_UYVY, PIPE_FORMAT_YUYV, 0 }
732 /* compressed formats */ /* XXX PIPE_BIND_SAMPLER_VIEW only */
734 { GL_COMPRESSED_RGB, 0 },
735 { PIPE_FORMAT_DXT1_RGB, DEFAULT_RGB_FORMATS }
738 { GL_COMPRESSED_RGBA, 0 },
739 { PIPE_FORMAT_DXT5_RGBA, DEFAULT_RGBA_FORMATS }
742 { GL_RGB_S3TC, GL_RGB4_S3TC, GL_COMPRESSED_RGB_S3TC_DXT1_EXT, 0 },
743 { PIPE_FORMAT_DXT1_RGB, 0 }
746 { GL_COMPRESSED_RGBA_S3TC_DXT1_EXT, 0 },
747 { PIPE_FORMAT_DXT1_RGBA, 0 }
750 { GL_RGBA_S3TC, GL_RGBA4_S3TC, GL_COMPRESSED_RGBA_S3TC_DXT3_EXT, 0 },
751 { PIPE_FORMAT_DXT3_RGBA, 0 }
754 { GL_COMPRESSED_RGBA_S3TC_DXT5_EXT, 0 },
755 { PIPE_FORMAT_DXT5_RGBA, 0 }
760 { GL_COMPRESSED_RGB_FXT1_3DFX, 0 },
761 { PIPE_FORMAT_RGB_FXT1, 0 }
764 { GL_COMPRESSED_RGBA_FXT1_3DFX, 0 },
765 { PIPE_FORMAT_RGBA_FXT1, 0 }
771 { GL_DEPTH_COMPONENT16, 0 },
772 { PIPE_FORMAT_Z16_UNORM, DEFAULT_DEPTH_FORMATS }
775 { GL_DEPTH_COMPONENT24, 0 },
776 { PIPE_FORMAT_Z24X8_UNORM, PIPE_FORMAT_X8Z24_UNORM,
777 DEFAULT_DEPTH_FORMATS }
780 { GL_DEPTH_COMPONENT32, 0 },
781 { PIPE_FORMAT_Z32_UNORM, DEFAULT_DEPTH_FORMATS }
784 { GL_DEPTH_COMPONENT, 0 },
785 { DEFAULT_DEPTH_FORMATS }
788 /* stencil formats */
790 { GL_STENCIL_INDEX, GL_STENCIL_INDEX1_EXT, GL_STENCIL_INDEX4_EXT,
791 GL_STENCIL_INDEX8_EXT, GL_STENCIL_INDEX16_EXT, 0 },
793 PIPE_FORMAT_S8_USCALED, PIPE_FORMAT_Z24_UNORM_S8_USCALED,
794 PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0
798 /* Depth / Stencil formats */
800 { GL_DEPTH_STENCIL_EXT, GL_DEPTH24_STENCIL8_EXT, 0 },
801 { PIPE_FORMAT_Z24_UNORM_S8_USCALED, PIPE_FORMAT_S8_USCALED_Z24_UNORM, 0 }
806 { GL_SRGB_EXT, GL_SRGB8_EXT, GL_SRGB_ALPHA_EXT, GL_SRGB8_ALPHA8_EXT, 0 },
807 { DEFAULT_SRGBA_FORMATS }
810 { GL_COMPRESSED_SRGB_EXT, GL_COMPRESSED_SRGB_S3TC_DXT1_EXT, 0 },
811 { PIPE_FORMAT_DXT1_SRGB, DEFAULT_SRGBA_FORMATS }
814 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT, 0 },
815 { PIPE_FORMAT_DXT1_SRGBA, 0 }
818 { GL_COMPRESSED_SRGB_ALPHA_EXT,
819 GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT, 0 },
820 { PIPE_FORMAT_DXT3_SRGBA, DEFAULT_SRGBA_FORMATS }
823 { GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT, 0 },
824 { PIPE_FORMAT_DXT5_SRGBA, 0 }
827 { GL_SLUMINANCE_ALPHA_EXT, GL_SLUMINANCE8_ALPHA8_EXT,
828 GL_COMPRESSED_SLUMINANCE_EXT, GL_COMPRESSED_SLUMINANCE_ALPHA_EXT, 0 },
829 { PIPE_FORMAT_L8A8_SRGB, DEFAULT_SRGBA_FORMATS }
832 { GL_SLUMINANCE_EXT, GL_SLUMINANCE8_EXT, 0 },
833 { PIPE_FORMAT_L8_SRGB, DEFAULT_SRGBA_FORMATS }
836 /* 16-bit float formats */
838 { GL_RGBA16F_ARB, 0 },
839 { PIPE_FORMAT_R16G16B16A16_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
842 { GL_RGB16F_ARB, 0 },
843 { PIPE_FORMAT_R16G16B16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
844 PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
847 { GL_LUMINANCE_ALPHA16F_ARB, 0 },
848 { PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
849 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
852 { GL_ALPHA16F_ARB, 0 },
853 { PIPE_FORMAT_A16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
854 PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
855 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
858 { GL_INTENSITY16F_ARB, 0 },
859 { PIPE_FORMAT_I16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
860 PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
861 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
864 { GL_LUMINANCE16F_ARB, 0 },
865 { PIPE_FORMAT_L16_FLOAT, PIPE_FORMAT_L16A16_FLOAT,
866 PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
867 PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
871 { PIPE_FORMAT_R16_FLOAT, PIPE_FORMAT_R16G16_FLOAT,
872 PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
873 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
877 { PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT,
878 PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT, 0 }
881 /* 32-bit float formats */
883 { GL_RGBA32F_ARB, 0 },
884 { PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
887 { GL_RGB32F_ARB, 0 },
888 { PIPE_FORMAT_R32G32B32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
889 PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
892 { GL_LUMINANCE_ALPHA32F_ARB, 0 },
893 { PIPE_FORMAT_L32A32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
894 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
897 { GL_ALPHA32F_ARB, 0 },
898 { PIPE_FORMAT_A32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
899 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_A16_FLOAT,
900 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
903 { GL_INTENSITY32F_ARB, 0 },
904 { PIPE_FORMAT_I32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
905 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_I16_FLOAT,
906 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
909 { GL_LUMINANCE32F_ARB, 0 },
910 { PIPE_FORMAT_L32_FLOAT, PIPE_FORMAT_L32A32_FLOAT,
911 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_L16_FLOAT,
912 PIPE_FORMAT_L16A16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
916 { PIPE_FORMAT_R32_FLOAT, PIPE_FORMAT_R32G32_FLOAT,
917 PIPE_FORMAT_R32G32B32A32_FLOAT, PIPE_FORMAT_R16_FLOAT,
918 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
922 { PIPE_FORMAT_R32G32_FLOAT, PIPE_FORMAT_R32G32B32A32_FLOAT,
923 PIPE_FORMAT_R16G16_FLOAT, PIPE_FORMAT_R16G16B16A16_FLOAT, 0 }
928 { GL_RED, GL_R8, 0 },
929 { PIPE_FORMAT_R8_UNORM, 0 }
932 { GL_RG, GL_RG8, 0 },
933 { PIPE_FORMAT_R8G8_UNORM, 0 }
937 { PIPE_FORMAT_R16_UNORM, 0 }
941 { PIPE_FORMAT_R16G16_UNORM, 0 }
944 /* compressed R, RG formats */
946 { GL_COMPRESSED_RED, GL_COMPRESSED_RED_RGTC1, 0 },
947 { PIPE_FORMAT_RGTC1_UNORM, PIPE_FORMAT_R8_UNORM, 0 }
950 { GL_COMPRESSED_SIGNED_RED_RGTC1, 0 },
951 { PIPE_FORMAT_RGTC1_SNORM, 0 }
954 { GL_COMPRESSED_RG, GL_COMPRESSED_RG_RGTC2, 0 },
955 { PIPE_FORMAT_RGTC2_UNORM, PIPE_FORMAT_R8G8_UNORM, 0 }
958 { GL_COMPRESSED_SIGNED_RG_RGTC2, 0 },
959 { PIPE_FORMAT_RGTC2_SNORM, 0 }
962 { GL_COMPRESSED_LUMINANCE, GL_COMPRESSED_LUMINANCE_LATC1_EXT, 0 },
963 { PIPE_FORMAT_LATC1_UNORM, PIPE_FORMAT_L8_UNORM, 0 }
966 { GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT, 0 },
967 { PIPE_FORMAT_LATC1_SNORM, 0 }
970 { GL_COMPRESSED_LUMINANCE_ALPHA, GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT,
971 GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI, 0 },
972 { PIPE_FORMAT_LATC2_UNORM, PIPE_FORMAT_L8A8_UNORM, 0 }
975 { GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT, 0 },
976 { PIPE_FORMAT_LATC2_SNORM, 0 }
979 /* signed/unsigned integer formats.
980 * XXX Mesa only has formats for RGBA signed/unsigned integer formats.
981 * If/when new formats are added this code should be updated.
984 { GL_RED_INTEGER_EXT,
985 GL_GREEN_INTEGER_EXT,
987 GL_ALPHA_INTEGER_EXT,
992 GL_LUMINANCE_INTEGER_EXT,
993 GL_LUMINANCE_ALPHA_INTEGER_EXT,
999 GL_LUMINANCE_ALPHA8I_EXT, 0 },
1000 { PIPE_FORMAT_R8G8B8A8_SSCALED, 0 }
1007 GL_INTENSITY16I_EXT,
1008 GL_LUMINANCE16I_EXT,
1009 GL_LUMINANCE_ALPHA16I_EXT, 0 },
1010 { PIPE_FORMAT_R16G16B16A16_SSCALED, 0 },
1017 GL_INTENSITY32I_EXT,
1018 GL_LUMINANCE32I_EXT,
1019 GL_LUMINANCE_ALPHA32I_EXT, 0 },
1020 { PIPE_FORMAT_R32G32B32A32_SSCALED, 0 }
1027 GL_INTENSITY8UI_EXT,
1028 GL_LUMINANCE8UI_EXT,
1029 GL_LUMINANCE_ALPHA8UI_EXT, 0 },
1030 { PIPE_FORMAT_R8G8B8A8_USCALED, 0 }
1037 GL_INTENSITY16UI_EXT,
1038 GL_LUMINANCE16UI_EXT,
1039 GL_LUMINANCE_ALPHA16UI_EXT, 0 },
1040 { PIPE_FORMAT_R16G16B16A16_USCALED, 0 }
1047 GL_INTENSITY32UI_EXT,
1048 GL_LUMINANCE32UI_EXT,
1049 GL_LUMINANCE_ALPHA32UI_EXT, 0 },
1050 { PIPE_FORMAT_R32G32B32A32_USCALED, 0 }
1053 /* signed normalized formats */
1055 { GL_RED_SNORM, GL_R8_SNORM, 0 },
1056 { PIPE_FORMAT_R8_SNORM, PIPE_FORMAT_R8G8_SNORM,
1057 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1060 { GL_R16_SNORM, 0 },
1061 { PIPE_FORMAT_R16_SNORM,
1062 PIPE_FORMAT_R16G16_SNORM,
1063 PIPE_FORMAT_R16G16B16A16_SNORM,
1064 PIPE_FORMAT_R8_SNORM,
1065 PIPE_FORMAT_R8G8_SNORM,
1066 PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1069 { GL_RG_SNORM, GL_RG8_SNORM, 0 },
1070 { PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1073 { GL_RG16_SNORM, 0 },
1074 { PIPE_FORMAT_R16G16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1075 PIPE_FORMAT_R8G8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1078 { GL_RGB_SNORM, GL_RGB8_SNORM, GL_RGBA_SNORM, GL_RGBA8_SNORM, 0 },
1079 { PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1082 { GL_RGB16_SNORM, GL_RGBA16_SNORM, 0 },
1083 { PIPE_FORMAT_R16G16B16A16_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1086 { GL_ALPHA_SNORM, GL_ALPHA8_SNORM, 0 },
1087 { PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1090 { GL_ALPHA16_SNORM, 0 },
1091 { PIPE_FORMAT_A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1092 PIPE_FORMAT_A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1095 { GL_LUMINANCE_SNORM, GL_LUMINANCE8_SNORM, 0 },
1096 { PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1099 { GL_LUMINANCE16_SNORM, 0 },
1100 { PIPE_FORMAT_L16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1101 PIPE_FORMAT_L8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1104 { GL_LUMINANCE_ALPHA_SNORM, GL_LUMINANCE8_ALPHA8_SNORM, 0 },
1105 { PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1108 { GL_LUMINANCE16_ALPHA16_SNORM, 0 },
1109 { PIPE_FORMAT_L16A16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1110 PIPE_FORMAT_L8A8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1113 { GL_INTENSITY_SNORM, GL_INTENSITY8_SNORM, 0 },
1114 { PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1117 { GL_INTENSITY16_SNORM, 0 },
1118 { PIPE_FORMAT_I16_SNORM, PIPE_FORMAT_R16G16B16A16_SNORM,
1119 PIPE_FORMAT_I8_SNORM, PIPE_FORMAT_R8G8B8A8_SNORM, 0 }
1123 { PIPE_FORMAT_R9G9B9E5_FLOAT, 0 }
1126 { GL_R11F_G11F_B10F, 0 },
1127 { PIPE_FORMAT_R11G11B10_FLOAT, 0 }
1133 * Return first supported format from the given list.
1135 static enum pipe_format
1136 find_supported_format(struct pipe_screen *screen,
1137 const enum pipe_format formats[],
1138 enum pipe_texture_target target,
1139 unsigned sample_count,
1143 for (i = 0; formats[i]; i++) {
1144 if (screen->is_format_supported(screen, formats[i], target,
1145 sample_count, tex_usage)) {
1149 return PIPE_FORMAT_NONE;
1152 struct exact_format_mapping
1156 enum pipe_format pformat;
1159 static const struct exact_format_mapping rgba8888_tbl[] =
1161 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8B8G8R8_UNORM },
1162 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_A8B8G8R8_UNORM },
1163 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8A8_UNORM },
1164 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8A8_UNORM },
1165 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_A8R8G8B8_UNORM },
1166 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8A8_UNORM },
1167 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8A8_UNORM },
1168 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_A8B8G8R8_UNORM },
1169 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8A8_UNORM },
1173 static const struct exact_format_mapping rgbx8888_tbl[] =
1175 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8R8G8B8_UNORM },
1176 { GL_BGRA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_B8G8R8X8_UNORM },
1177 { GL_BGRA, GL_UNSIGNED_BYTE, PIPE_FORMAT_B8G8R8X8_UNORM },
1178 /* No Mesa formats for these Gallium formats:
1179 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_X8B8G8R8_UNORM },
1180 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_X8B8G8R8_UNORM },
1181 { GL_RGBA, GL_UNSIGNED_INT_8_8_8_8_REV, PIPE_FORMAT_R8G8B8X8_UNORM },
1182 { GL_ABGR_EXT, GL_UNSIGNED_INT_8_8_8_8, PIPE_FORMAT_R8G8B8X8_UNORM },
1183 { GL_RGBA, GL_UNSIGNED_BYTE, PIPE_FORMAT_R8G8B8X8_UNORM },
1184 { GL_ABGR_EXT, GL_UNSIGNED_BYTE, PIPE_FORMAT_X8B8G8R8_UNORM },
1189 static const struct exact_format_mapping rgba1010102_tbl[] =
1191 { GL_BGRA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_B10G10R10A2_UNORM },
1192 /* No Mesa formats for these Gallium formats:
1193 { GL_RGBA, GL_UNSIGNED_INT_2_10_10_10_REV, PIPE_FORMAT_R10G10B10A2_UNORM },
1194 { GL_ABGR_EXT, GL_UNSIGNED_INT_10_10_10_2, PIPE_FORMAT_R10G10B10A2_UNORM },
1195 { GL_ABGR_EXT, GL_UNSIGNED_INT, PIPE_FORMAT_R10G10B10A2_UNORM },
1201 * If there is an exact pipe_format match for {internalFormat, format, type}
1202 * return that, otherwise return PIPE_FORMAT_NONE so we can do fuzzy matching.
1204 static enum pipe_format
1205 find_exact_format(GLint internalFormat, GLenum format, GLenum type)
1208 const struct exact_format_mapping* tbl;
1210 if (format == GL_NONE || type == GL_NONE)
1211 return PIPE_FORMAT_NONE;
1213 switch (internalFormat) {
1225 tbl = rgba1010102_tbl;
1228 return PIPE_FORMAT_NONE;
1231 for (i = 0; tbl[i].format; i++)
1232 if (tbl[i].format == format && tbl[i].type == type)
1233 return tbl[i].pformat;
1235 return PIPE_FORMAT_NONE;
1239 * Given an OpenGL internalFormat value for a texture or surface, return
1240 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
1241 * This is called during glTexImage2D, for example.
1243 * The bindings parameter typically has PIPE_BIND_SAMPLER_VIEW set, plus
1244 * either PIPE_BINDING_RENDER_TARGET or PIPE_BINDING_DEPTH_STENCIL if
1245 * we want render-to-texture ability.
1247 * \param internalFormat the user value passed to glTexImage2D
1248 * \param target one of PIPE_TEXTURE_x
1249 * \param bindings bitmask of PIPE_BIND_x flags.
1252 st_choose_format(struct pipe_screen *screen, GLenum internalFormat,
1253 GLenum format, GLenum type,
1254 enum pipe_texture_target target, unsigned sample_count,
1257 GET_CURRENT_CONTEXT(ctx); /* XXX this should be a function parameter */
1259 enum pipe_format pf;
1261 /* can't render to compressed formats at this time */
1262 if (_mesa_is_compressed_format(ctx, internalFormat)
1263 && (bindings & ~PIPE_BIND_SAMPLER_VIEW)) {
1264 return PIPE_FORMAT_NONE;
1267 /* search for exact matches */
1268 pf = find_exact_format(internalFormat, format, type);
1269 if (pf != PIPE_FORMAT_NONE &&
1270 screen->is_format_supported(screen, pf,
1271 target, sample_count, bindings))
1274 /* search table for internalFormat */
1275 for (i = 0; i < Elements(format_map); i++) {
1276 const struct format_mapping *mapping = &format_map[i];
1277 for (j = 0; mapping->glFormats[j]; j++) {
1278 if (mapping->glFormats[j] == internalFormat) {
1279 /* Found the desired internal format. Find first pipe format
1280 * which is supported by the driver.
1282 return find_supported_format(screen, mapping->pipeFormats,
1283 target, sample_count, bindings);
1288 _mesa_problem(NULL, "unhandled format!\n");
1289 return PIPE_FORMAT_NONE;
1294 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
1297 st_choose_renderbuffer_format(struct pipe_screen *screen,
1298 GLenum internalFormat, unsigned sample_count)
1301 if (_mesa_is_depth_or_stencil_format(internalFormat))
1302 usage = PIPE_BIND_DEPTH_STENCIL;
1304 usage = PIPE_BIND_RENDER_TARGET;
1305 return st_choose_format(screen, internalFormat, GL_NONE, GL_NONE, PIPE_TEXTURE_2D,
1306 sample_count, usage);
1311 st_ChooseTextureFormat_renderable(struct gl_context *ctx, GLint internalFormat,
1312 GLenum format, GLenum type, GLboolean renderable)
1314 struct pipe_screen *screen = st_context(ctx)->pipe->screen;
1315 enum pipe_format pFormat;
1321 /* GL textures may wind up being render targets, but we don't know
1322 * that in advance. Specify potential render target flags now.
1324 bindings = PIPE_BIND_SAMPLER_VIEW;
1326 if (_mesa_is_depth_or_stencil_format(internalFormat))
1327 bindings |= PIPE_BIND_DEPTH_STENCIL;
1329 bindings |= PIPE_BIND_RENDER_TARGET;
1332 pFormat = st_choose_format(screen, internalFormat, format, type,
1333 PIPE_TEXTURE_2D, 0, bindings);
1335 if (pFormat == PIPE_FORMAT_NONE) {
1336 /* try choosing format again, this time without render target bindings */
1337 pFormat = st_choose_format(screen, internalFormat, format, type,
1338 PIPE_TEXTURE_2D, 0, PIPE_BIND_SAMPLER_VIEW);
1341 if (pFormat == PIPE_FORMAT_NONE) {
1342 /* no luck at all */
1343 return MESA_FORMAT_NONE;
1346 return st_pipe_format_to_mesa_format(pFormat);
1351 * Called via ctx->Driver.ChooseTextureFormat().
1354 st_ChooseTextureFormat(struct gl_context *ctx, GLint internalFormat,
1355 GLenum format, GLenum type)
1357 boolean want_renderable =
1358 internalFormat == 3 || internalFormat == 4 ||
1359 internalFormat == GL_RGB || internalFormat == GL_RGBA ||
1360 internalFormat == GL_RGB8 || internalFormat == GL_RGBA8 ||
1361 internalFormat == GL_BGRA;
1363 return st_ChooseTextureFormat_renderable(ctx, internalFormat,
1364 format, type, want_renderable);
1368 * Test if a gallium format is equivalent to a GL format/type.
1371 st_equal_formats(enum pipe_format pFormat, GLenum format, GLenum type)
1374 case PIPE_FORMAT_A8B8G8R8_UNORM:
1375 return format == GL_RGBA && type == GL_UNSIGNED_BYTE;
1376 case PIPE_FORMAT_A8R8G8B8_UNORM:
1377 return format == GL_BGRA && type == GL_UNSIGNED_BYTE;
1378 case PIPE_FORMAT_B5G6R5_UNORM:
1379 return format == GL_RGB && type == GL_UNSIGNED_SHORT_5_6_5;
1380 /* XXX more combos... */
1387 st_sampler_compat_formats(enum pipe_format format1, enum pipe_format format2)
1389 if (format1 == format2)
1392 if (format1 == PIPE_FORMAT_B8G8R8A8_UNORM &&
1393 format2 == PIPE_FORMAT_B8G8R8X8_UNORM)
1396 if (format1 == PIPE_FORMAT_B8G8R8X8_UNORM &&
1397 format2 == PIPE_FORMAT_B8G8R8A8_UNORM)
1400 if (format1 == PIPE_FORMAT_A8B8G8R8_UNORM &&
1401 format2 == PIPE_FORMAT_X8B8G8R8_UNORM)
1404 if (format1 == PIPE_FORMAT_X8B8G8R8_UNORM &&
1405 format2 == PIPE_FORMAT_A8B8G8R8_UNORM)
1408 if (format1 == PIPE_FORMAT_A8R8G8B8_UNORM &&
1409 format2 == PIPE_FORMAT_X8R8G8B8_UNORM)
1412 if (format1 == PIPE_FORMAT_X8R8G8B8_UNORM &&
1413 format2 == PIPE_FORMAT_A8R8G8B8_UNORM)
1422 * This is used for translating texture border color and the clear
1423 * color. For example, the clear color is interpreted according to
1424 * the renderbuffer's base format. For example, if clearing a
1425 * GL_LUMINANCE buffer, ClearColor[0] = luminance and ClearColor[1] =
1426 * alpha. Similarly for texture border colors.
1429 st_translate_color(const GLfloat colorIn[4], GLenum baseFormat,
1430 GLfloat colorOut[4])
1432 switch (baseFormat) {
1434 colorOut[0] = colorIn[0];
1440 colorOut[0] = colorIn[0];
1441 colorOut[1] = colorIn[1];
1446 colorOut[0] = colorIn[0];
1447 colorOut[1] = colorIn[1];
1448 colorOut[2] = colorIn[2];
1452 colorOut[0] = colorOut[1] = colorOut[2] = 0.0;
1453 colorOut[3] = colorIn[3];
1456 colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
1459 case GL_LUMINANCE_ALPHA:
1460 colorOut[0] = colorOut[1] = colorOut[2] = colorIn[0];
1461 colorOut[3] = colorIn[3];
1464 colorOut[0] = colorOut[1] = colorOut[2] = colorOut[3] = colorIn[0];
1467 COPY_4V(colorOut, colorIn);