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
37 #include "mfeatures.h"
39 #include "texcompress.h"
40 #include "texformat.h"
42 #define RETURN_IF_SUPPORTED(f) do { \
43 if (ctx->TextureFormatSupported[f]) \
48 * Choose an appropriate texture format given the format, type and
49 * internalFormat parameters passed to glTexImage().
51 * \param ctx the GL context.
52 * \param internalFormat user's prefered internal texture format.
53 * \param format incoming image pixel format.
54 * \param type incoming image data type.
56 * \return a pointer to a gl_texture_format object which describes the
57 * choosen texture format, or NULL on failure.
59 * This is called via dd_function_table::ChooseTextureFormat. Hardware drivers
60 * will typically override this function with a specialized version.
63 _mesa_choose_tex_format( struct gl_context
*ctx
, GLint internalFormat
,
64 GLenum format
, GLenum type
)
69 switch (internalFormat
) {
70 /* shallow RGBA formats */
73 if (type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
) {
74 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
75 } else if (type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
) {
76 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555
);
78 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
79 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
83 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
84 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
87 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555
);
90 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV
); /* just to test another format*/
91 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
94 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
97 /* deep RGBA formats */
99 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010
);
100 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
104 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
105 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
106 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
107 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
110 /* shallow RGB formats */
114 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
115 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
116 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
119 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB332
);
120 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
121 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
122 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
125 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
); /* just to test another format */
126 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
129 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
132 /* deep RGB formats */
136 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
137 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
138 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
145 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
150 RETURN_IF_SUPPORTED(MESA_FORMAT_A16
);
151 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
154 /* Luminance formats */
159 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
164 RETURN_IF_SUPPORTED(MESA_FORMAT_L16
);
165 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
168 /* Luminance/Alpha formats */
169 case GL_LUMINANCE4_ALPHA4
:
170 RETURN_IF_SUPPORTED(MESA_FORMAT_AL44
);
171 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
175 case GL_LUMINANCE_ALPHA
:
176 case GL_LUMINANCE6_ALPHA2
:
177 case GL_LUMINANCE8_ALPHA8
:
178 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
181 case GL_LUMINANCE12_ALPHA4
:
182 case GL_LUMINANCE12_ALPHA12
:
183 case GL_LUMINANCE16_ALPHA16
:
184 RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616
);
185 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
191 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
196 RETURN_IF_SUPPORTED(MESA_FORMAT_I16
);
197 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
201 case GL_COLOR_INDEX1_EXT
:
202 case GL_COLOR_INDEX2_EXT
:
203 case GL_COLOR_INDEX4_EXT
:
204 case GL_COLOR_INDEX12_EXT
:
205 case GL_COLOR_INDEX16_EXT
:
206 case GL_COLOR_INDEX8_EXT
:
207 RETURN_IF_SUPPORTED(MESA_FORMAT_CI8
);
214 if (ctx
->Extensions
.ARB_depth_texture
) {
215 switch (internalFormat
) {
216 case GL_DEPTH_COMPONENT
:
217 case GL_DEPTH_COMPONENT24
:
218 case GL_DEPTH_COMPONENT32
:
219 RETURN_IF_SUPPORTED(MESA_FORMAT_Z32
);
220 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
222 case GL_DEPTH_COMPONENT16
:
223 RETURN_IF_SUPPORTED(MESA_FORMAT_Z16
);
224 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
230 switch (internalFormat
) {
231 case GL_COMPRESSED_ALPHA_ARB
:
232 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
234 case GL_COMPRESSED_LUMINANCE_ARB
:
235 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
237 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB
:
238 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
240 case GL_COMPRESSED_INTENSITY_ARB
:
241 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
243 case GL_COMPRESSED_RGB_ARB
:
244 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
245 ctx
->Extensions
.S3_s3tc
)
246 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
247 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
248 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
249 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
250 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
251 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
253 case GL_COMPRESSED_RGBA_ARB
:
254 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
255 ctx
->Extensions
.S3_s3tc
)
256 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
); /* Not rgba_dxt1, see spec */
257 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
258 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
259 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
260 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
266 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
267 if (internalFormat
== GL_YCBCR_MESA
) {
268 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
)
269 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR
);
271 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV
);
275 #if FEATURE_texture_fxt1
276 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
277 switch (internalFormat
) {
278 case GL_COMPRESSED_RGB_FXT1_3DFX
:
279 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
281 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
282 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
290 #if FEATURE_texture_s3tc
291 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
292 switch (internalFormat
) {
293 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
294 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
296 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
297 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1
);
299 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
300 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
302 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
303 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5
);
310 if (ctx
->Extensions
.S3_s3tc
) {
311 switch (internalFormat
) {
314 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
318 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
326 if (ctx
->Extensions
.ARB_texture_float
) {
327 switch (internalFormat
) {
328 case GL_ALPHA16F_ARB
:
329 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
331 case GL_ALPHA32F_ARB
:
332 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
334 case GL_LUMINANCE16F_ARB
:
335 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
337 case GL_LUMINANCE32F_ARB
:
338 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
340 case GL_LUMINANCE_ALPHA16F_ARB
:
341 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
343 case GL_LUMINANCE_ALPHA32F_ARB
:
344 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
346 case GL_INTENSITY16F_ARB
:
347 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
349 case GL_INTENSITY32F_ARB
:
350 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
353 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
356 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
359 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
362 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
369 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
370 switch (internalFormat
) {
371 case GL_DEPTH_STENCIL_EXT
:
372 case GL_DEPTH24_STENCIL8_EXT
:
373 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8
);
374 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
381 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
382 switch (internalFormat
) {
385 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8
);
392 if (ctx
->Extensions
.EXT_texture_snorm
) {
393 switch (internalFormat
) {
396 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8
);
400 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV
);
404 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
408 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
409 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
412 case GL_ALPHA8_SNORM
:
413 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8
);
414 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
415 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
417 case GL_LUMINANCE_SNORM
:
418 case GL_LUMINANCE8_SNORM
:
419 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8
);
420 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
421 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
422 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
424 case GL_LUMINANCE_ALPHA_SNORM
:
425 case GL_LUMINANCE8_ALPHA8_SNORM
:
426 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88
);
427 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
428 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
430 case GL_INTENSITY_SNORM
:
431 case GL_INTENSITY8_SNORM
:
432 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8
);
433 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
434 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
437 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16
);
440 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616
);
443 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16
);
445 case GL_RGBA16_SNORM
:
446 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
447 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
448 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
450 case GL_ALPHA16_SNORM
:
451 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16
);
452 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
453 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
454 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
456 case GL_LUMINANCE16_SNORM
:
457 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16
);
459 case GL_LUMINANCE16_ALPHA16_SNORM
:
460 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616
);
461 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
462 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
463 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
465 case GL_INTENSITY16_SNORM
:
466 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16
);
467 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
468 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
469 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
476 #if FEATURE_EXT_texture_sRGB
477 if (ctx
->Extensions
.EXT_texture_sRGB
) {
478 switch (internalFormat
) {
481 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
482 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
484 case GL_SRGB_ALPHA_EXT
:
485 case GL_SRGB8_ALPHA8_EXT
:
486 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
487 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
489 case GL_SLUMINANCE_EXT
:
490 case GL_SLUMINANCE8_EXT
:
491 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
492 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
494 case GL_SLUMINANCE_ALPHA_EXT
:
495 case GL_SLUMINANCE8_ALPHA8_EXT
:
496 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
497 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
499 case GL_COMPRESSED_SLUMINANCE_EXT
:
500 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
501 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
503 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
504 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
505 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
507 case GL_COMPRESSED_SRGB_EXT
:
508 #if FEATURE_texture_s3tc
509 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
510 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
512 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
513 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
515 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
516 #if FEATURE_texture_s3tc
517 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
518 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
); /* Not srgba_dxt1, see spec */
520 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
521 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
523 #if FEATURE_texture_s3tc
524 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
525 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
526 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
527 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
529 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
530 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
531 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1
);
532 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
534 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
535 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
536 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
);
537 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
539 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
540 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
541 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5
);
542 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
549 #endif /* FEATURE_EXT_texture_sRGB */
551 if (ctx
->Extensions
.EXT_texture_integer
) {
552 switch (internalFormat
) {
553 case GL_RGBA32UI_EXT
:
555 case GL_ALPHA32UI_EXT
:
556 case GL_INTENSITY32UI_EXT
:
557 case GL_LUMINANCE32UI_EXT
:
558 case GL_LUMINANCE_ALPHA32UI_EXT
:
559 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
561 case GL_RGBA16UI_EXT
:
563 case GL_ALPHA16UI_EXT
:
564 case GL_INTENSITY16UI_EXT
:
565 case GL_LUMINANCE16UI_EXT
:
566 case GL_LUMINANCE_ALPHA16UI_EXT
:
567 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
571 case GL_ALPHA8UI_EXT
:
572 case GL_INTENSITY8UI_EXT
:
573 case GL_LUMINANCE8UI_EXT
:
574 case GL_LUMINANCE_ALPHA8UI_EXT
:
575 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
579 case GL_ALPHA32I_EXT
:
580 case GL_INTENSITY32I_EXT
:
581 case GL_LUMINANCE32I_EXT
:
582 case GL_LUMINANCE_ALPHA32I_EXT
:
583 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
587 case GL_ALPHA16I_EXT
:
588 case GL_INTENSITY16I_EXT
:
589 case GL_LUMINANCE16I_EXT
:
590 case GL_LUMINANCE_ALPHA16I_EXT
:
591 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
596 case GL_INTENSITY8I_EXT
:
597 case GL_LUMINANCE8I_EXT
:
598 case GL_LUMINANCE_ALPHA8I_EXT
:
599 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
604 if (ctx
->Extensions
.ARB_texture_rg
) {
605 switch (internalFormat
) {
608 case GL_COMPRESSED_RED
:
609 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
613 RETURN_IF_SUPPORTED(MESA_FORMAT_R16
);
618 case GL_COMPRESSED_RG
:
619 RETURN_IF_SUPPORTED(MESA_FORMAT_RG88
);
623 RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616
);
631 if (ctx
->Extensions
.EXT_texture_format_BGRA8888
) {
632 switch (internalFormat
) {
634 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
642 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
643 switch (internalFormat
) {
644 case GL_COMPRESSED_RED_RGTC1
:
645 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
647 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
648 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1
);
650 case GL_COMPRESSED_RG_RGTC2
:
651 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
653 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
654 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2
);
661 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
662 switch (internalFormat
) {
663 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
664 RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1
);
666 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
667 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1
);
669 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
670 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
672 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
673 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2
);
680 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
681 switch (internalFormat
) {
682 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
683 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
690 _mesa_problem(ctx
, "unexpected format in _mesa_choose_tex_format()");
691 return MESA_FORMAT_NONE
;