2 * Mesa 3-D graphics library
5 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
6 * Copyright (c) 2008-2009 VMware, Inc.
8 * Permission is hereby granted, free of charge, to any person obtaining a
9 * copy of this software and associated documentation files (the "Software"),
10 * to deal in the Software without restriction, including without limitation
11 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
12 * and/or sell copies of the Software, and to permit persons to whom the
13 * Software is furnished to do so, subject to the following conditions:
15 * The above copyright notice and this permission notice shall be included
16 * in all copies or substantial portions of the Software.
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
20 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
21 * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
22 * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
23 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
31 * \author Gareth Hughes
38 #include "mfeatures.h"
40 #include "texcompress.h"
41 #include "texformat.h"
43 #define RETURN_IF_SUPPORTED(f) do { \
44 if (ctx->TextureFormatSupported[f]) \
49 * Choose an appropriate texture format given the format, type and
50 * internalFormat parameters passed to glTexImage().
52 * \param ctx the GL context.
53 * \param internalFormat user's prefered internal texture format.
54 * \param format incoming image pixel format.
55 * \param type incoming image data type.
57 * \return a pointer to a gl_texture_format object which describes the
58 * choosen texture format, or NULL on failure.
60 * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
61 * will typically override this function with a specialized version.
64 _mesa_choose_tex_format( struct gl_context
*ctx
, GLint internalFormat
,
65 GLenum format
, GLenum type
)
70 switch (internalFormat
) {
71 /* shallow RGBA formats */
74 if (type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
) {
75 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
76 } else if (type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
) {
77 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555
);
79 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
80 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
84 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
85 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
88 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555
);
91 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV
); /* just to test another format*/
92 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
95 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
98 /* deep RGBA formats */
100 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010
);
101 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
105 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
106 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
107 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
108 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
111 /* shallow RGB formats */
115 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
116 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
117 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
120 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332
);
121 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
122 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
);
123 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
124 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
125 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
128 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
); /* just to test another format */
129 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
132 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
135 /* deep RGB formats */
139 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
140 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
141 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
148 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
153 RETURN_IF_SUPPORTED(MESA_FORMAT_A16
);
154 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
157 /* Luminance formats */
162 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
167 RETURN_IF_SUPPORTED(MESA_FORMAT_L16
);
168 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
171 /* Luminance/Alpha formats */
172 case GL_LUMINANCE4_ALPHA4
:
173 RETURN_IF_SUPPORTED(MESA_FORMAT_AL44
);
174 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
178 case GL_LUMINANCE_ALPHA
:
179 case GL_LUMINANCE6_ALPHA2
:
180 case GL_LUMINANCE8_ALPHA8
:
181 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
184 case GL_LUMINANCE12_ALPHA4
:
185 case GL_LUMINANCE12_ALPHA12
:
186 case GL_LUMINANCE16_ALPHA16
:
187 RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616
);
188 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
194 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
199 RETURN_IF_SUPPORTED(MESA_FORMAT_I16
);
200 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
207 if (ctx
->Extensions
.ARB_depth_texture
) {
208 switch (internalFormat
) {
209 case GL_DEPTH_COMPONENT
:
210 case GL_DEPTH_COMPONENT24
:
211 case GL_DEPTH_COMPONENT32
:
212 RETURN_IF_SUPPORTED(MESA_FORMAT_Z32
);
213 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24
);
214 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
216 case GL_DEPTH_COMPONENT16
:
217 RETURN_IF_SUPPORTED(MESA_FORMAT_Z16
);
218 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24
);
219 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
225 switch (internalFormat
) {
226 case GL_COMPRESSED_ALPHA_ARB
:
227 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
229 case GL_COMPRESSED_LUMINANCE_ARB
:
230 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
232 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB
:
233 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
235 case GL_COMPRESSED_INTENSITY_ARB
:
236 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
238 case GL_COMPRESSED_RGB_ARB
:
239 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
240 ctx
->Extensions
.S3_s3tc
)
241 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
242 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
243 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
244 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
245 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
246 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
248 case GL_COMPRESSED_RGBA_ARB
:
249 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
250 ctx
->Extensions
.S3_s3tc
)
251 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
); /* Not rgba_dxt1, see spec */
252 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
253 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
254 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
255 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
261 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
262 if (internalFormat
== GL_YCBCR_MESA
) {
263 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
)
264 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR
);
266 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV
);
270 #if FEATURE_texture_fxt1
271 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
272 switch (internalFormat
) {
273 case GL_COMPRESSED_RGB_FXT1_3DFX
:
274 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
276 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
277 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
285 #if FEATURE_texture_s3tc
286 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
287 switch (internalFormat
) {
288 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
289 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
291 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
292 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1
);
294 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
295 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
297 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
298 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5
);
305 if (ctx
->Extensions
.S3_s3tc
) {
306 switch (internalFormat
) {
309 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
313 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
321 if (ctx
->Extensions
.ARB_texture_float
) {
322 switch (internalFormat
) {
323 case GL_ALPHA16F_ARB
:
324 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
325 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
326 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
328 case GL_ALPHA32F_ARB
:
329 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
330 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
331 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
332 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
334 case GL_LUMINANCE16F_ARB
:
335 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
336 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
337 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
339 case GL_LUMINANCE32F_ARB
:
340 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
341 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
342 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
343 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
345 case GL_LUMINANCE_ALPHA16F_ARB
:
346 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
347 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
348 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
350 case GL_LUMINANCE_ALPHA32F_ARB
:
351 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
352 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
353 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
354 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
356 case GL_INTENSITY16F_ARB
:
357 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
358 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
359 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
361 case GL_INTENSITY32F_ARB
:
362 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
363 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
364 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
365 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
368 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
369 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
370 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
371 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
374 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
375 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
376 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
377 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
380 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
381 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
384 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
385 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
392 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
393 switch (internalFormat
) {
395 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_RGB9_E5_FLOAT
]);
396 return MESA_FORMAT_RGB9_E5_FLOAT
;
402 if (ctx
->Extensions
.EXT_packed_float
) {
403 switch (internalFormat
) {
404 case GL_R11F_G11F_B10F
:
405 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_R11_G11_B10_FLOAT
]);
406 return MESA_FORMAT_R11_G11_B10_FLOAT
;
412 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
413 switch (internalFormat
) {
414 case GL_DEPTH_STENCIL_EXT
:
415 case GL_DEPTH24_STENCIL8_EXT
:
416 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8
);
417 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
424 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
425 switch (internalFormat
) {
426 case GL_DEPTH_COMPONENT32F
:
427 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT
]);
428 return MESA_FORMAT_Z32_FLOAT
;
429 case GL_DEPTH32F_STENCIL8
:
430 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT_X24S8
]);
431 return MESA_FORMAT_Z32_FLOAT_X24S8
;
437 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
438 switch (internalFormat
) {
441 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8
);
448 if (ctx
->Extensions
.EXT_texture_snorm
) {
449 switch (internalFormat
) {
452 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8
);
456 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV
);
460 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
464 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
465 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
468 case GL_ALPHA8_SNORM
:
469 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8
);
470 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
471 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
473 case GL_LUMINANCE_SNORM
:
474 case GL_LUMINANCE8_SNORM
:
475 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8
);
476 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
477 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
478 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
480 case GL_LUMINANCE_ALPHA_SNORM
:
481 case GL_LUMINANCE8_ALPHA8_SNORM
:
482 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88
);
483 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
484 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
486 case GL_INTENSITY_SNORM
:
487 case GL_INTENSITY8_SNORM
:
488 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8
);
489 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
490 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
493 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16
);
496 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616
);
499 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16
);
501 case GL_RGBA16_SNORM
:
502 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
503 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
504 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
506 case GL_ALPHA16_SNORM
:
507 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16
);
508 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
509 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
510 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
512 case GL_LUMINANCE16_SNORM
:
513 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16
);
515 case GL_LUMINANCE16_ALPHA16_SNORM
:
516 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616
);
517 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
518 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
519 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
521 case GL_INTENSITY16_SNORM
:
522 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16
);
523 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
524 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
525 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
532 #if FEATURE_EXT_texture_sRGB
533 if (ctx
->Extensions
.EXT_texture_sRGB
) {
534 switch (internalFormat
) {
537 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
538 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
540 case GL_SRGB_ALPHA_EXT
:
541 case GL_SRGB8_ALPHA8_EXT
:
542 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
543 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
545 case GL_SLUMINANCE_EXT
:
546 case GL_SLUMINANCE8_EXT
:
547 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
548 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
550 case GL_SLUMINANCE_ALPHA_EXT
:
551 case GL_SLUMINANCE8_ALPHA8_EXT
:
552 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
553 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
555 case GL_COMPRESSED_SLUMINANCE_EXT
:
556 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
557 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
559 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
560 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
561 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
563 case GL_COMPRESSED_SRGB_EXT
:
564 #if FEATURE_texture_s3tc
565 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
566 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
568 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
569 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
571 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
572 #if FEATURE_texture_s3tc
573 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
574 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
); /* Not srgba_dxt1, see spec */
576 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
577 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
579 #if FEATURE_texture_s3tc
580 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
581 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
582 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
583 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
585 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
586 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
587 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1
);
588 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
590 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
591 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
592 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
);
593 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
595 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
596 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
597 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5
);
598 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
605 #endif /* FEATURE_EXT_texture_sRGB */
607 if (ctx
->Extensions
.EXT_texture_integer
) {
608 switch (internalFormat
) {
609 case GL_ALPHA8UI_EXT
:
610 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8
);
611 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
613 case GL_ALPHA16UI_EXT
:
614 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16
);
615 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
617 case GL_ALPHA32UI_EXT
:
618 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32
);
619 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
622 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8
);
623 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
625 case GL_ALPHA16I_EXT
:
626 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16
);
627 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
629 case GL_ALPHA32I_EXT
:
630 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32
);
631 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
633 case GL_LUMINANCE8UI_EXT
:
634 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8
);
635 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
637 case GL_LUMINANCE16UI_EXT
:
638 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16
);
639 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
641 case GL_LUMINANCE32UI_EXT
:
642 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32
);
643 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
645 case GL_LUMINANCE8I_EXT
:
646 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8
);
647 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
649 case GL_LUMINANCE16I_EXT
:
650 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16
);
651 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
653 case GL_LUMINANCE32I_EXT
:
654 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32
);
655 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
657 case GL_LUMINANCE_ALPHA8UI_EXT
:
658 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8
);
659 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
661 case GL_LUMINANCE_ALPHA16UI_EXT
:
662 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16
);
663 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
665 case GL_LUMINANCE_ALPHA32UI_EXT
:
666 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32
);
667 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
669 case GL_LUMINANCE_ALPHA8I_EXT
:
670 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8
);
671 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
673 case GL_LUMINANCE_ALPHA16I_EXT
:
674 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16
);
675 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
677 case GL_LUMINANCE_ALPHA32I_EXT
:
678 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32
);
679 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
681 case GL_INTENSITY8UI_EXT
:
682 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8
);
683 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
685 case GL_INTENSITY16UI_EXT
:
686 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16
);
687 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
689 case GL_INTENSITY32UI_EXT
:
690 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32
);
691 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
693 case GL_INTENSITY8I_EXT
:
694 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8
);
695 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
697 case GL_INTENSITY16I_EXT
:
698 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16
);
699 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
701 case GL_INTENSITY32I_EXT
:
702 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32
);
703 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
706 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8
);
707 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
710 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16
);
711 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
714 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32
);
715 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
718 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8
);
719 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
722 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16
);
723 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
726 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32
);
727 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
730 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
732 case GL_RGBA16UI_EXT
:
733 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
735 case GL_RGBA32UI_EXT
:
736 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
739 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
742 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
745 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
750 if (ctx
->Extensions
.ARB_texture_rg
) {
751 switch (internalFormat
) {
754 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
757 case GL_COMPRESSED_RED
:
758 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
759 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
763 RETURN_IF_SUPPORTED(MESA_FORMAT_R16
);
768 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
771 case GL_COMPRESSED_RG
:
772 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
773 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
777 RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616
);
785 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.ARB_texture_float
) {
786 switch (internalFormat
) {
788 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
789 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
790 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
793 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
794 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
797 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
798 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
799 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
802 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
803 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
811 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.EXT_texture_integer
) {
812 switch (internalFormat
) {
814 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8
);
817 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8
);
820 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16
);
823 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16
);
826 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32
);
829 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32
);
832 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT8
);
835 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8
);
838 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16
);
841 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16
);
844 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32
);
847 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32
);
854 if (ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
855 switch (internalFormat
) {
857 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010_UINT
);
863 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
865 if (ctx
->API
!= API_OPENGL
) {
866 switch (internalFormat
) {
868 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
876 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
877 switch (internalFormat
) {
878 case GL_COMPRESSED_RED_RGTC1
:
879 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
881 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
882 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1
);
884 case GL_COMPRESSED_RG_RGTC2
:
885 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
887 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
888 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2
);
895 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
896 switch (internalFormat
) {
897 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
898 RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1
);
900 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
901 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1
);
903 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
904 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
906 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
907 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2
);
914 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
915 switch (internalFormat
) {
916 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
917 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
924 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
925 switch (internalFormat
) {
926 case GL_ETC1_RGB8_OES
:
927 RETURN_IF_SUPPORTED(MESA_FORMAT_ETC1_RGB8
);
934 _mesa_problem(ctx
, "unexpected format %s in _mesa_choose_tex_format()",
935 _mesa_lookup_enum_by_nr(internalFormat
));
936 return MESA_FORMAT_NONE
;