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_RGB888
);
122 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
123 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
126 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
); /* just to test another format */
127 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
130 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
133 /* deep RGB formats */
137 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
138 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
139 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
146 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
151 RETURN_IF_SUPPORTED(MESA_FORMAT_A16
);
152 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
155 /* Luminance formats */
160 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
165 RETURN_IF_SUPPORTED(MESA_FORMAT_L16
);
166 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
169 /* Luminance/Alpha formats */
170 case GL_LUMINANCE4_ALPHA4
:
171 RETURN_IF_SUPPORTED(MESA_FORMAT_AL44
);
172 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
176 case GL_LUMINANCE_ALPHA
:
177 case GL_LUMINANCE6_ALPHA2
:
178 case GL_LUMINANCE8_ALPHA8
:
179 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
182 case GL_LUMINANCE12_ALPHA4
:
183 case GL_LUMINANCE12_ALPHA12
:
184 case GL_LUMINANCE16_ALPHA16
:
185 RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616
);
186 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
192 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
197 RETURN_IF_SUPPORTED(MESA_FORMAT_I16
);
198 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
205 if (ctx
->Extensions
.ARB_depth_texture
) {
206 switch (internalFormat
) {
207 case GL_DEPTH_COMPONENT
:
208 case GL_DEPTH_COMPONENT24
:
209 case GL_DEPTH_COMPONENT32
:
210 RETURN_IF_SUPPORTED(MESA_FORMAT_Z32
);
211 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24
);
212 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
214 case GL_DEPTH_COMPONENT16
:
215 RETURN_IF_SUPPORTED(MESA_FORMAT_Z16
);
216 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24
);
217 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
223 switch (internalFormat
) {
224 case GL_COMPRESSED_ALPHA_ARB
:
225 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
227 case GL_COMPRESSED_LUMINANCE_ARB
:
228 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
230 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB
:
231 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
233 case GL_COMPRESSED_INTENSITY_ARB
:
234 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
236 case GL_COMPRESSED_RGB_ARB
:
237 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
238 ctx
->Extensions
.S3_s3tc
)
239 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
240 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
241 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
242 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
243 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
244 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
246 case GL_COMPRESSED_RGBA_ARB
:
247 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
248 ctx
->Extensions
.S3_s3tc
)
249 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
); /* Not rgba_dxt1, see spec */
250 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
251 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
252 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
253 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
259 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
260 if (internalFormat
== GL_YCBCR_MESA
) {
261 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
)
262 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR
);
264 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV
);
268 #if FEATURE_texture_fxt1
269 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
270 switch (internalFormat
) {
271 case GL_COMPRESSED_RGB_FXT1_3DFX
:
272 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
274 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
275 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
283 #if FEATURE_texture_s3tc
284 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
285 switch (internalFormat
) {
286 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
287 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
289 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
290 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1
);
292 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
293 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
295 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
296 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5
);
303 if (ctx
->Extensions
.S3_s3tc
) {
304 switch (internalFormat
) {
307 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
311 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
319 if (ctx
->Extensions
.ARB_texture_float
) {
320 switch (internalFormat
) {
321 case GL_ALPHA16F_ARB
:
322 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
323 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
324 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
326 case GL_ALPHA32F_ARB
:
327 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
328 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
329 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
330 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
332 case GL_LUMINANCE16F_ARB
:
333 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
334 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
335 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
337 case GL_LUMINANCE32F_ARB
:
338 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
339 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
340 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
341 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
343 case GL_LUMINANCE_ALPHA16F_ARB
:
344 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
345 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
346 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
348 case GL_LUMINANCE_ALPHA32F_ARB
:
349 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
350 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
351 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
352 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
354 case GL_INTENSITY16F_ARB
:
355 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
356 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
357 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
359 case GL_INTENSITY32F_ARB
:
360 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
361 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
362 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
363 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
366 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
367 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
368 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
369 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
372 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
373 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
374 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
375 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
378 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
379 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
382 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
383 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
390 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
391 switch (internalFormat
) {
393 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_RGB9_E5_FLOAT
]);
394 return MESA_FORMAT_RGB9_E5_FLOAT
;
400 if (ctx
->Extensions
.EXT_packed_float
) {
401 switch (internalFormat
) {
402 case GL_R11F_G11F_B10F
:
403 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_R11_G11_B10_FLOAT
]);
404 return MESA_FORMAT_R11_G11_B10_FLOAT
;
410 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
411 switch (internalFormat
) {
412 case GL_DEPTH_STENCIL_EXT
:
413 case GL_DEPTH24_STENCIL8_EXT
:
414 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8
);
415 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
422 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
423 switch (internalFormat
) {
424 case GL_DEPTH_COMPONENT32F
:
425 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT
]);
426 return MESA_FORMAT_Z32_FLOAT
;
427 case GL_DEPTH32F_STENCIL8
:
428 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT_X24S8
]);
429 return MESA_FORMAT_Z32_FLOAT_X24S8
;
435 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
436 switch (internalFormat
) {
439 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8
);
446 if (ctx
->Extensions
.EXT_texture_snorm
) {
447 switch (internalFormat
) {
450 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8
);
454 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV
);
458 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
462 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
463 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
466 case GL_ALPHA8_SNORM
:
467 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8
);
468 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
469 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
471 case GL_LUMINANCE_SNORM
:
472 case GL_LUMINANCE8_SNORM
:
473 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8
);
474 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
475 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
476 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
478 case GL_LUMINANCE_ALPHA_SNORM
:
479 case GL_LUMINANCE8_ALPHA8_SNORM
:
480 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88
);
481 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
482 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
484 case GL_INTENSITY_SNORM
:
485 case GL_INTENSITY8_SNORM
:
486 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8
);
487 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
488 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
491 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16
);
494 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616
);
497 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16
);
499 case GL_RGBA16_SNORM
:
500 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
501 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
502 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
504 case GL_ALPHA16_SNORM
:
505 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16
);
506 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
507 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
508 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
510 case GL_LUMINANCE16_SNORM
:
511 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16
);
513 case GL_LUMINANCE16_ALPHA16_SNORM
:
514 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616
);
515 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
516 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
517 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
519 case GL_INTENSITY16_SNORM
:
520 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16
);
521 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
522 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
523 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
530 #if FEATURE_EXT_texture_sRGB
531 if (ctx
->Extensions
.EXT_texture_sRGB
) {
532 switch (internalFormat
) {
535 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
536 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
538 case GL_SRGB_ALPHA_EXT
:
539 case GL_SRGB8_ALPHA8_EXT
:
540 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
541 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
543 case GL_SLUMINANCE_EXT
:
544 case GL_SLUMINANCE8_EXT
:
545 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
546 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
548 case GL_SLUMINANCE_ALPHA_EXT
:
549 case GL_SLUMINANCE8_ALPHA8_EXT
:
550 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
551 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
553 case GL_COMPRESSED_SLUMINANCE_EXT
:
554 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
555 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
557 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
558 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
559 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
561 case GL_COMPRESSED_SRGB_EXT
:
562 #if FEATURE_texture_s3tc
563 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
564 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
566 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
567 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
569 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
570 #if FEATURE_texture_s3tc
571 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
572 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
); /* Not srgba_dxt1, see spec */
574 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
575 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
577 #if FEATURE_texture_s3tc
578 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
579 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
580 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
581 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
583 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
584 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
585 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1
);
586 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
588 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
589 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
590 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
);
591 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
593 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
594 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
595 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5
);
596 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
603 #endif /* FEATURE_EXT_texture_sRGB */
605 if (ctx
->Extensions
.EXT_texture_integer
) {
606 switch (internalFormat
) {
607 case GL_ALPHA8UI_EXT
:
608 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8
);
609 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
611 case GL_ALPHA16UI_EXT
:
612 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16
);
613 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
615 case GL_ALPHA32UI_EXT
:
616 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32
);
617 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
620 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8
);
621 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
623 case GL_ALPHA16I_EXT
:
624 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16
);
625 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
627 case GL_ALPHA32I_EXT
:
628 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32
);
629 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
631 case GL_LUMINANCE8UI_EXT
:
632 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8
);
633 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
635 case GL_LUMINANCE16UI_EXT
:
636 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16
);
637 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
639 case GL_LUMINANCE32UI_EXT
:
640 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32
);
641 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
643 case GL_LUMINANCE8I_EXT
:
644 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8
);
645 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
647 case GL_LUMINANCE16I_EXT
:
648 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16
);
649 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
651 case GL_LUMINANCE32I_EXT
:
652 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32
);
653 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
655 case GL_LUMINANCE_ALPHA8UI_EXT
:
656 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8
);
657 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
659 case GL_LUMINANCE_ALPHA16UI_EXT
:
660 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16
);
661 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
663 case GL_LUMINANCE_ALPHA32UI_EXT
:
664 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32
);
665 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
667 case GL_LUMINANCE_ALPHA8I_EXT
:
668 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8
);
669 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
671 case GL_LUMINANCE_ALPHA16I_EXT
:
672 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16
);
673 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
675 case GL_LUMINANCE_ALPHA32I_EXT
:
676 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32
);
677 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
679 case GL_INTENSITY8UI_EXT
:
680 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8
);
681 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
683 case GL_INTENSITY16UI_EXT
:
684 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16
);
685 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
687 case GL_INTENSITY32UI_EXT
:
688 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32
);
689 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
691 case GL_INTENSITY8I_EXT
:
692 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8
);
693 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
695 case GL_INTENSITY16I_EXT
:
696 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16
);
697 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
699 case GL_INTENSITY32I_EXT
:
700 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32
);
701 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
704 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8
);
705 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
708 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16
);
709 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
712 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32
);
713 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
716 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8
);
717 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
720 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16
);
721 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
724 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32
);
725 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
728 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
730 case GL_RGBA16UI_EXT
:
731 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
733 case GL_RGBA32UI_EXT
:
734 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
737 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
740 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
743 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
748 if (ctx
->Extensions
.ARB_texture_rg
) {
749 switch (internalFormat
) {
752 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
755 case GL_COMPRESSED_RED
:
756 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
757 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
761 RETURN_IF_SUPPORTED(MESA_FORMAT_R16
);
766 RETURN_IF_SUPPORTED(MESA_FORMAT_RG88
);
769 case GL_COMPRESSED_RG
:
770 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
771 RETURN_IF_SUPPORTED(MESA_FORMAT_RG88
);
775 RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616
);
783 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.ARB_texture_float
) {
784 switch (internalFormat
) {
786 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
787 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
788 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
791 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
792 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
795 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
796 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
797 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
800 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
801 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
809 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.EXT_texture_integer
) {
810 switch (internalFormat
) {
812 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8
);
815 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8
);
818 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16
);
821 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16
);
824 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32
);
827 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32
);
830 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT8
);
833 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8
);
836 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16
);
839 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16
);
842 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32
);
845 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32
);
852 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
854 if (ctx
->API
!= API_OPENGL
) {
855 switch (internalFormat
) {
857 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
865 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
866 switch (internalFormat
) {
867 case GL_COMPRESSED_RED_RGTC1
:
868 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
870 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
871 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1
);
873 case GL_COMPRESSED_RG_RGTC2
:
874 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
876 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
877 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2
);
884 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
885 switch (internalFormat
) {
886 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
887 RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1
);
889 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
890 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1
);
892 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
893 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
895 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
896 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2
);
903 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
904 switch (internalFormat
) {
905 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
906 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
913 _mesa_problem(ctx
, "unexpected format %s in _mesa_choose_tex_format()",
914 _mesa_lookup_enum_by_nr(internalFormat
));
915 return MESA_FORMAT_NONE
;