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
, GLenum target
,
65 GLint internalFormat
, 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 /* We don't use texture compression for 1D and 1D array textures.
240 * For 1D textures, compressions doesn't buy us much.
241 * For 1D ARRAY textures, there's complicated issues with updating
242 * sub-regions on non-block boundaries with glCopyTexSubImage, among
243 * other issues. FWIW, the GL_EXT_texture_array extension prohibits
244 * 1D ARRAY textures in S3TC format.
246 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
) {
247 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
248 ctx
->Extensions
.S3_s3tc
)
249 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
250 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
251 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
253 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
254 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
255 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
257 case GL_COMPRESSED_RGBA_ARB
:
258 /* We don't use texture compression for 1D and 1D array textures. */
259 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
) {
260 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
261 ctx
->Extensions
.S3_s3tc
)
262 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
); /* Not rgba_dxt1, see spec */
263 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
264 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
266 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
267 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
273 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
274 switch (internalFormat
) {
276 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
283 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
284 if (internalFormat
== GL_YCBCR_MESA
) {
285 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
)
286 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR
);
288 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV
);
292 #if FEATURE_texture_fxt1
293 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
) {
294 switch (internalFormat
) {
295 case GL_COMPRESSED_RGB_FXT1_3DFX
:
296 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
298 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
299 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
307 #if FEATURE_texture_s3tc
308 if (ctx
->Extensions
.EXT_texture_compression_s3tc
) {
309 switch (internalFormat
) {
310 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
311 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
313 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
314 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT1
);
316 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
317 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
319 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
320 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT5
);
327 if (ctx
->Extensions
.S3_s3tc
) {
328 switch (internalFormat
) {
331 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
335 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
);
343 if (ctx
->Extensions
.ARB_texture_float
) {
344 switch (internalFormat
) {
345 case GL_ALPHA16F_ARB
:
346 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
347 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
348 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
349 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
351 case GL_ALPHA32F_ARB
:
352 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
353 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
354 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
355 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
357 case GL_LUMINANCE16F_ARB
:
358 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
359 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
360 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
361 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
363 case GL_LUMINANCE32F_ARB
:
364 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
365 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
366 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
367 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
369 case GL_LUMINANCE_ALPHA16F_ARB
:
370 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
371 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
372 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
373 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
375 case GL_LUMINANCE_ALPHA32F_ARB
:
376 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
377 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
378 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
379 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
381 case GL_INTENSITY16F_ARB
:
382 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
383 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
384 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
385 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
387 case GL_INTENSITY32F_ARB
:
388 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
389 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
390 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
391 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
394 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
395 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
396 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
397 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
400 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
401 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
402 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
403 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
406 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
407 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
410 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
411 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
418 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
419 switch (internalFormat
) {
421 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_RGB9_E5_FLOAT
]);
422 return MESA_FORMAT_RGB9_E5_FLOAT
;
428 if (ctx
->Extensions
.EXT_packed_float
) {
429 switch (internalFormat
) {
430 case GL_R11F_G11F_B10F
:
431 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_R11_G11_B10_FLOAT
]);
432 return MESA_FORMAT_R11_G11_B10_FLOAT
;
438 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
439 switch (internalFormat
) {
440 case GL_DEPTH_STENCIL_EXT
:
441 case GL_DEPTH24_STENCIL8_EXT
:
442 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8
);
443 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
450 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
451 switch (internalFormat
) {
452 case GL_DEPTH_COMPONENT32F
:
453 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT
]);
454 return MESA_FORMAT_Z32_FLOAT
;
455 case GL_DEPTH32F_STENCIL8
:
456 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT_X24S8
]);
457 return MESA_FORMAT_Z32_FLOAT_X24S8
;
463 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
464 switch (internalFormat
) {
467 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8
);
474 if (ctx
->Extensions
.EXT_texture_snorm
) {
475 switch (internalFormat
) {
478 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8
);
482 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV
);
486 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
490 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
491 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
494 case GL_ALPHA8_SNORM
:
495 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8
);
496 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
497 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
499 case GL_LUMINANCE_SNORM
:
500 case GL_LUMINANCE8_SNORM
:
501 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8
);
502 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
503 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
504 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
506 case GL_LUMINANCE_ALPHA_SNORM
:
507 case GL_LUMINANCE8_ALPHA8_SNORM
:
508 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88
);
509 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
510 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
512 case GL_INTENSITY_SNORM
:
513 case GL_INTENSITY8_SNORM
:
514 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8
);
515 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
516 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
519 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16
);
522 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616
);
525 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16
);
527 case GL_RGBA16_SNORM
:
528 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
529 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
530 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
532 case GL_ALPHA16_SNORM
:
533 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16
);
534 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
535 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
536 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
538 case GL_LUMINANCE16_SNORM
:
539 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16
);
541 case GL_LUMINANCE16_ALPHA16_SNORM
:
542 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616
);
543 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
544 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
545 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
547 case GL_INTENSITY16_SNORM
:
548 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16
);
549 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
550 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
551 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
558 #if FEATURE_EXT_texture_sRGB
559 if (ctx
->Extensions
.EXT_texture_sRGB
) {
560 switch (internalFormat
) {
563 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
564 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
566 case GL_SRGB_ALPHA_EXT
:
567 case GL_SRGB8_ALPHA8_EXT
:
568 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
569 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
571 case GL_SLUMINANCE_EXT
:
572 case GL_SLUMINANCE8_EXT
:
573 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
574 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
576 case GL_SLUMINANCE_ALPHA_EXT
:
577 case GL_SLUMINANCE8_ALPHA8_EXT
:
578 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
579 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
581 case GL_COMPRESSED_SLUMINANCE_EXT
:
582 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
583 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
585 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
586 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
587 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
589 case GL_COMPRESSED_SRGB_EXT
:
590 #if FEATURE_texture_s3tc
591 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
592 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
594 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
595 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
597 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
598 #if FEATURE_texture_s3tc
599 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
600 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
); /* Not srgba_dxt1, see spec */
602 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
603 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
605 #if FEATURE_texture_s3tc
606 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
607 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
608 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
609 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
611 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
612 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
613 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT1
);
614 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
616 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
617 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
618 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
);
619 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
621 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
622 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
623 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT5
);
624 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
631 #endif /* FEATURE_EXT_texture_sRGB */
633 if (ctx
->Extensions
.EXT_texture_integer
) {
634 switch (internalFormat
) {
635 case GL_ALPHA8UI_EXT
:
636 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8
);
637 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
639 case GL_ALPHA16UI_EXT
:
640 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16
);
641 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
643 case GL_ALPHA32UI_EXT
:
644 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32
);
645 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
648 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8
);
649 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
651 case GL_ALPHA16I_EXT
:
652 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16
);
653 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
655 case GL_ALPHA32I_EXT
:
656 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32
);
657 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
659 case GL_LUMINANCE8UI_EXT
:
660 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8
);
661 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
663 case GL_LUMINANCE16UI_EXT
:
664 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16
);
665 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
667 case GL_LUMINANCE32UI_EXT
:
668 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32
);
669 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
671 case GL_LUMINANCE8I_EXT
:
672 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8
);
673 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
675 case GL_LUMINANCE16I_EXT
:
676 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16
);
677 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
679 case GL_LUMINANCE32I_EXT
:
680 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32
);
681 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
683 case GL_LUMINANCE_ALPHA8UI_EXT
:
684 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8
);
685 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
687 case GL_LUMINANCE_ALPHA16UI_EXT
:
688 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16
);
689 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
691 case GL_LUMINANCE_ALPHA32UI_EXT
:
692 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32
);
693 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
695 case GL_LUMINANCE_ALPHA8I_EXT
:
696 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8
);
697 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
699 case GL_LUMINANCE_ALPHA16I_EXT
:
700 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16
);
701 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
703 case GL_LUMINANCE_ALPHA32I_EXT
:
704 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32
);
705 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
707 case GL_INTENSITY8UI_EXT
:
708 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8
);
709 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
711 case GL_INTENSITY16UI_EXT
:
712 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16
);
713 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
715 case GL_INTENSITY32UI_EXT
:
716 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32
);
717 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
719 case GL_INTENSITY8I_EXT
:
720 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8
);
721 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
723 case GL_INTENSITY16I_EXT
:
724 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16
);
725 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
727 case GL_INTENSITY32I_EXT
:
728 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32
);
729 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
734 if (ctx
->Version
>= 30 ||
735 ctx
->Extensions
.EXT_texture_integer
) {
736 switch (internalFormat
) {
738 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8
);
739 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
742 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16
);
743 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
746 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32
);
747 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
750 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8
);
751 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
754 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16
);
755 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
758 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32
);
759 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
762 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
764 case GL_RGBA16UI_EXT
:
765 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
767 case GL_RGBA32UI_EXT
:
768 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
771 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
774 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
777 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
782 if (ctx
->Extensions
.ARB_texture_rg
) {
783 switch (internalFormat
) {
786 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
789 case GL_COMPRESSED_RED
:
790 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
)
791 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
792 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
796 RETURN_IF_SUPPORTED(MESA_FORMAT_R16
);
801 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
804 case GL_COMPRESSED_RG
:
805 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
)
806 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
807 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
811 RETURN_IF_SUPPORTED(MESA_FORMAT_RG1616
);
819 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.ARB_texture_float
) {
820 switch (internalFormat
) {
822 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
823 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
824 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
825 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
826 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
827 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
830 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
831 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
832 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
833 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
834 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
835 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
838 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
839 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
840 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
841 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
844 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
845 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
846 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
847 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
855 if (ctx
->Version
>= 30 ||
856 (ctx
->Extensions
.ARB_texture_rg
&&
857 ctx
->Extensions
.EXT_texture_integer
)) {
858 switch (internalFormat
) {
860 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8
);
863 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8
);
866 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16
);
869 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16
);
872 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32
);
875 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32
);
878 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT8
);
881 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8
);
884 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16
);
887 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16
);
890 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32
);
893 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32
);
900 if (ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
901 switch (internalFormat
) {
903 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010_UINT
);
904 RETURN_IF_SUPPORTED(MESA_FORMAT_ABGR2101010_UINT
);
910 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
912 if (_mesa_is_gles(ctx
)) {
913 switch (internalFormat
) {
915 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
923 if (ctx
->Extensions
.ARB_texture_compression_rgtc
) {
924 switch (internalFormat
) {
925 case GL_COMPRESSED_RED_RGTC1
:
926 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
928 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
929 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RED_RGTC1
);
931 case GL_COMPRESSED_RG_RGTC2
:
932 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
934 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
935 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG_RGTC2
);
942 if (ctx
->Extensions
.EXT_texture_compression_latc
) {
943 switch (internalFormat
) {
944 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
945 RETURN_IF_SUPPORTED(MESA_FORMAT_L_LATC1
);
947 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
948 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L_LATC1
);
950 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
951 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
953 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
954 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_LA_LATC2
);
961 if (ctx
->Extensions
.ATI_texture_compression_3dc
) {
962 switch (internalFormat
) {
963 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
964 RETURN_IF_SUPPORTED(MESA_FORMAT_LA_LATC2
);
971 if (ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
) {
972 switch (internalFormat
) {
973 case GL_ETC1_RGB8_OES
:
974 RETURN_IF_SUPPORTED(MESA_FORMAT_ETC1_RGB8
);
981 _mesa_problem(ctx
, "unexpected format %s in _mesa_choose_tex_format()",
982 _mesa_lookup_enum_by_nr(internalFormat
));
983 return MESA_FORMAT_NONE
;