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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
22 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
23 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
24 * OTHER DEALINGS IN THE SOFTWARE.
32 * \author Gareth Hughes
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
);
78 } else if (type
== GL_UNSIGNED_INT_2_10_10_10_REV
) {
79 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010
);
81 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
82 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
86 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
87 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
90 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB1555
);
93 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444_REV
); /* just to test another format*/
94 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
97 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB4444
);
100 /* deep RGBA formats */
102 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010
);
103 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
107 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
108 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
109 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
110 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
113 /* shallow RGB formats */
116 if (type
== GL_UNSIGNED_INT_2_10_10_10_REV
) {
117 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010
);
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_RGB332
);
127 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
128 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
);
129 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
130 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
131 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
134 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565_REV
); /* just to test another format */
135 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
138 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
141 /* deep RGB formats */
145 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_16
);
146 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
147 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
154 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
159 RETURN_IF_SUPPORTED(MESA_FORMAT_A16
);
160 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
163 /* Luminance formats */
168 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
173 RETURN_IF_SUPPORTED(MESA_FORMAT_L16
);
174 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
177 /* Luminance/Alpha formats */
178 case GL_LUMINANCE4_ALPHA4
:
179 RETURN_IF_SUPPORTED(MESA_FORMAT_AL44
);
180 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
184 case GL_LUMINANCE_ALPHA
:
185 case GL_LUMINANCE6_ALPHA2
:
186 case GL_LUMINANCE8_ALPHA8
:
187 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
190 case GL_LUMINANCE12_ALPHA4
:
191 case GL_LUMINANCE12_ALPHA12
:
192 case GL_LUMINANCE16_ALPHA16
:
193 RETURN_IF_SUPPORTED(MESA_FORMAT_AL1616
);
194 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
200 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
205 RETURN_IF_SUPPORTED(MESA_FORMAT_I16
);
206 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
213 if (ctx
->Extensions
.ARB_depth_texture
) {
214 switch (internalFormat
) {
215 case GL_DEPTH_COMPONENT
:
216 case GL_DEPTH_COMPONENT24
:
217 case GL_DEPTH_COMPONENT32
:
218 RETURN_IF_SUPPORTED(MESA_FORMAT_Z32
);
219 RETURN_IF_SUPPORTED(MESA_FORMAT_X8_Z24
);
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_X8_Z24
);
225 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
231 switch (internalFormat
) {
232 case GL_COMPRESSED_ALPHA_ARB
:
233 RETURN_IF_SUPPORTED(MESA_FORMAT_A8
);
235 case GL_COMPRESSED_LUMINANCE_ARB
:
236 RETURN_IF_SUPPORTED(MESA_FORMAT_L8
);
238 case GL_COMPRESSED_LUMINANCE_ALPHA_ARB
:
239 RETURN_IF_SUPPORTED(MESA_FORMAT_AL88
);
241 case GL_COMPRESSED_INTENSITY_ARB
:
242 RETURN_IF_SUPPORTED(MESA_FORMAT_I8
);
244 case GL_COMPRESSED_RGB_ARB
:
245 /* We don't use texture compression for 1D and 1D array textures.
246 * For 1D textures, compressions doesn't buy us much.
247 * For 1D ARRAY textures, there's complicated issues with updating
248 * sub-regions on non-block boundaries with glCopyTexSubImage, among
249 * other issues. FWIW, the GL_EXT_texture_array extension prohibits
250 * 1D ARRAY textures in S3TC format.
252 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
) {
253 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
254 ctx
->Extensions
.ANGLE_texture_compression_dxt
)
255 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_DXT1
);
256 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
257 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FXT1
);
259 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB888
);
260 RETURN_IF_SUPPORTED(MESA_FORMAT_XRGB8888
);
261 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
263 case GL_COMPRESSED_RGBA_ARB
:
264 /* We don't use texture compression for 1D and 1D array textures. */
265 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
) {
266 if (ctx
->Extensions
.EXT_texture_compression_s3tc
||
267 ctx
->Extensions
.ANGLE_texture_compression_dxt
)
268 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_DXT3
); /* Not rgba_dxt1, see spec */
269 if (ctx
->Extensions
.TDFX_texture_compression_FXT1
)
270 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FXT1
);
272 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA8888
);
273 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
279 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
280 switch (internalFormat
) {
282 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB565
);
289 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
290 if (internalFormat
== GL_YCBCR_MESA
) {
291 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
)
292 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR
);
294 RETURN_IF_SUPPORTED(MESA_FORMAT_YCBCR_REV
);
298 /* For non-generic compressed format we assert two things:
300 * 1. The format has already been validated against the set of available
303 * 2. The driver only enables the extension if it supports all of the
304 * formats that are part of that extension.
306 switch (internalFormat
) {
307 case GL_COMPRESSED_RGB_FXT1_3DFX
:
308 return MESA_FORMAT_RGB_FXT1
;
309 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
310 return MESA_FORMAT_RGBA_FXT1
;
311 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
314 return MESA_FORMAT_RGB_DXT1
;
315 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
316 return MESA_FORMAT_RGBA_DXT1
;
317 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
320 return MESA_FORMAT_RGBA_DXT3
;
321 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
322 return MESA_FORMAT_RGBA_DXT5
;
323 case GL_COMPRESSED_RED_RGTC1
:
324 return MESA_FORMAT_RED_RGTC1
;
325 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
326 return MESA_FORMAT_SIGNED_RED_RGTC1
;
327 case GL_COMPRESSED_RG_RGTC2
:
328 return MESA_FORMAT_RG_RGTC2
;
329 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
330 return MESA_FORMAT_SIGNED_RG_RGTC2
;
331 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
332 return MESA_FORMAT_L_LATC1
;
333 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
334 return MESA_FORMAT_SIGNED_L_LATC1
;
335 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
336 return MESA_FORMAT_LA_LATC2
;
337 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
338 return MESA_FORMAT_SIGNED_LA_LATC2
;
339 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
340 return MESA_FORMAT_LA_LATC2
;
341 case GL_ETC1_RGB8_OES
:
342 return MESA_FORMAT_ETC1_RGB8
;
343 case GL_COMPRESSED_RGB8_ETC2
:
344 return MESA_FORMAT_ETC2_RGB8
;
345 case GL_COMPRESSED_SRGB8_ETC2
:
346 return MESA_FORMAT_ETC2_SRGB8
;
347 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
348 return MESA_FORMAT_ETC2_RGBA8_EAC
;
349 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
350 return MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC
;
351 case GL_COMPRESSED_R11_EAC
:
352 return MESA_FORMAT_ETC2_R11_EAC
;
353 case GL_COMPRESSED_RG11_EAC
:
354 return MESA_FORMAT_ETC2_RG11_EAC
;
355 case GL_COMPRESSED_SIGNED_R11_EAC
:
356 return MESA_FORMAT_ETC2_SIGNED_R11_EAC
;
357 case GL_COMPRESSED_SIGNED_RG11_EAC
:
358 return MESA_FORMAT_ETC2_SIGNED_RG11_EAC
;
359 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
360 return MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
;
361 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
362 return MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
;
363 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
364 return MESA_FORMAT_SRGB_DXT1
;
365 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
366 return MESA_FORMAT_SRGBA_DXT1
;
367 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
368 return MESA_FORMAT_SRGBA_DXT3
;
369 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
370 return MESA_FORMAT_SRGBA_DXT5
;
375 if (ctx
->Extensions
.ARB_texture_float
) {
376 switch (internalFormat
) {
377 case GL_ALPHA16F_ARB
:
378 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
379 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
380 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
381 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
383 case GL_ALPHA32F_ARB
:
384 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT32
);
385 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
386 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_FLOAT16
);
387 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
389 case GL_LUMINANCE16F_ARB
:
390 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
391 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
392 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
393 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
395 case GL_LUMINANCE32F_ARB
:
396 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT32
);
397 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
398 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_FLOAT16
);
399 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
401 case GL_LUMINANCE_ALPHA16F_ARB
:
402 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
403 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
404 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
405 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
407 case GL_LUMINANCE_ALPHA32F_ARB
:
408 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT32
);
409 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
410 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_FLOAT16
);
411 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
413 case GL_INTENSITY16F_ARB
:
414 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
415 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
416 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
417 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
419 case GL_INTENSITY32F_ARB
:
420 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT32
);
421 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
422 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_FLOAT16
);
423 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
426 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
427 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
428 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
429 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
432 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT32
);
433 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
434 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_FLOAT16
);
435 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
438 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
439 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
442 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
443 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
450 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
451 switch (internalFormat
) {
453 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_RGB9_E5_FLOAT
]);
454 return MESA_FORMAT_RGB9_E5_FLOAT
;
460 if (ctx
->Extensions
.EXT_packed_float
) {
461 switch (internalFormat
) {
462 case GL_R11F_G11F_B10F
:
463 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_R11_G11_B10_FLOAT
]);
464 return MESA_FORMAT_R11_G11_B10_FLOAT
;
470 if (ctx
->Extensions
.EXT_packed_depth_stencil
) {
471 switch (internalFormat
) {
472 case GL_DEPTH_STENCIL_EXT
:
473 case GL_DEPTH24_STENCIL8_EXT
:
474 RETURN_IF_SUPPORTED(MESA_FORMAT_Z24_S8
);
475 RETURN_IF_SUPPORTED(MESA_FORMAT_S8_Z24
);
482 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
483 switch (internalFormat
) {
484 case GL_DEPTH_COMPONENT32F
:
485 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT
]);
486 return MESA_FORMAT_Z32_FLOAT
;
487 case GL_DEPTH32F_STENCIL8
:
488 ASSERT(ctx
->TextureFormatSupported
[MESA_FORMAT_Z32_FLOAT_X24S8
]);
489 return MESA_FORMAT_Z32_FLOAT_X24S8
;
495 if (ctx
->Extensions
.ATI_envmap_bumpmap
) {
496 switch (internalFormat
) {
499 RETURN_IF_SUPPORTED(MESA_FORMAT_DUDV8
);
506 if (ctx
->Extensions
.EXT_texture_snorm
) {
507 switch (internalFormat
) {
510 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R8
);
514 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RG88_REV
);
518 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
522 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
523 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
526 case GL_ALPHA8_SNORM
:
527 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A8
);
528 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
529 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
531 case GL_LUMINANCE_SNORM
:
532 case GL_LUMINANCE8_SNORM
:
533 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L8
);
534 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBX8888
);
535 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
536 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
538 case GL_LUMINANCE_ALPHA_SNORM
:
539 case GL_LUMINANCE8_ALPHA8_SNORM
:
540 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL88
);
541 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
542 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
544 case GL_INTENSITY_SNORM
:
545 case GL_INTENSITY8_SNORM
:
546 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I8
);
547 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
548 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
551 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_R16
);
554 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_GR1616
);
557 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGB_16
);
559 case GL_RGBA16_SNORM
:
560 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
561 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
562 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
564 case GL_ALPHA16_SNORM
:
565 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_A16
);
566 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
567 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
568 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
570 case GL_LUMINANCE16_SNORM
:
571 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_L16
);
573 case GL_LUMINANCE16_ALPHA16_SNORM
:
574 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_AL1616
);
575 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
576 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
577 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
579 case GL_INTENSITY16_SNORM
:
580 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_I16
);
581 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA_16
);
582 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888
);
583 RETURN_IF_SUPPORTED(MESA_FORMAT_SIGNED_RGBA8888_REV
);
590 if (ctx
->Extensions
.EXT_texture_sRGB
) {
591 switch (internalFormat
) {
594 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
595 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
597 case GL_SRGB_ALPHA_EXT
:
598 case GL_SRGB8_ALPHA8_EXT
:
599 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
600 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
602 case GL_SLUMINANCE_EXT
:
603 case GL_SLUMINANCE8_EXT
:
604 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
605 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
607 case GL_SLUMINANCE_ALPHA_EXT
:
608 case GL_SLUMINANCE8_ALPHA8_EXT
:
609 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
610 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
612 case GL_COMPRESSED_SLUMINANCE_EXT
:
613 RETURN_IF_SUPPORTED(MESA_FORMAT_SL8
);
614 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
616 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
617 RETURN_IF_SUPPORTED(MESA_FORMAT_SLA8
);
618 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
620 case GL_COMPRESSED_SRGB_EXT
:
621 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
622 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB_DXT1
);
623 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGB8
);
624 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
626 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
627 if (ctx
->Extensions
.EXT_texture_compression_s3tc
)
628 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA_DXT3
); /* Not srgba_dxt1, see spec */
629 RETURN_IF_SUPPORTED(MESA_FORMAT_SRGBA8
);
630 RETURN_IF_SUPPORTED(MESA_FORMAT_SARGB8
);
637 if (ctx
->Extensions
.EXT_texture_integer
) {
638 switch (internalFormat
) {
639 case GL_ALPHA8UI_EXT
:
640 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT8
);
641 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
643 case GL_ALPHA16UI_EXT
:
644 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT16
);
645 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
647 case GL_ALPHA32UI_EXT
:
648 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_UINT32
);
649 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
652 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT8
);
653 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
655 case GL_ALPHA16I_EXT
:
656 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT16
);
657 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
659 case GL_ALPHA32I_EXT
:
660 RETURN_IF_SUPPORTED(MESA_FORMAT_ALPHA_INT32
);
661 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
663 case GL_LUMINANCE8UI_EXT
:
664 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT8
);
665 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
667 case GL_LUMINANCE16UI_EXT
:
668 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT16
);
669 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
671 case GL_LUMINANCE32UI_EXT
:
672 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_UINT32
);
673 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
675 case GL_LUMINANCE8I_EXT
:
676 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT8
);
677 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
679 case GL_LUMINANCE16I_EXT
:
680 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT16
);
681 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
683 case GL_LUMINANCE32I_EXT
:
684 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_INT32
);
685 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
687 case GL_LUMINANCE_ALPHA8UI_EXT
:
688 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT8
);
689 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
691 case GL_LUMINANCE_ALPHA16UI_EXT
:
692 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT16
);
693 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
695 case GL_LUMINANCE_ALPHA32UI_EXT
:
696 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_UINT32
);
697 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
699 case GL_LUMINANCE_ALPHA8I_EXT
:
700 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT8
);
701 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
703 case GL_LUMINANCE_ALPHA16I_EXT
:
704 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT16
);
705 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
707 case GL_LUMINANCE_ALPHA32I_EXT
:
708 RETURN_IF_SUPPORTED(MESA_FORMAT_LUMINANCE_ALPHA_INT32
);
709 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
711 case GL_INTENSITY8UI_EXT
:
712 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT8
);
713 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
715 case GL_INTENSITY16UI_EXT
:
716 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT16
);
717 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
719 case GL_INTENSITY32UI_EXT
:
720 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_UINT32
);
721 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
723 case GL_INTENSITY8I_EXT
:
724 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT8
);
725 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
727 case GL_INTENSITY16I_EXT
:
728 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT16
);
729 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
731 case GL_INTENSITY32I_EXT
:
732 RETURN_IF_SUPPORTED(MESA_FORMAT_INTENSITY_INT32
);
733 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
738 if (ctx
->Version
>= 30 ||
739 ctx
->Extensions
.EXT_texture_integer
) {
740 switch (internalFormat
) {
742 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT8
);
743 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
746 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT16
);
747 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
750 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_UINT32
);
751 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
754 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT8
);
755 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
758 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT16
);
759 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
762 RETURN_IF_SUPPORTED(MESA_FORMAT_RGB_INT32
);
763 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
766 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT8
);
768 case GL_RGBA16UI_EXT
:
769 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT16
);
771 case GL_RGBA32UI_EXT
:
772 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_UINT32
);
775 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT8
);
778 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT16
);
781 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_INT32
);
786 if (ctx
->Extensions
.ARB_texture_rg
) {
787 switch (internalFormat
) {
790 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
793 case GL_COMPRESSED_RED
:
794 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
)
795 RETURN_IF_SUPPORTED(MESA_FORMAT_RED_RGTC1
);
796 RETURN_IF_SUPPORTED(MESA_FORMAT_R8
);
800 RETURN_IF_SUPPORTED(MESA_FORMAT_R16
);
805 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
808 case GL_COMPRESSED_RG
:
809 if (target
!= GL_TEXTURE_1D
&& target
!= GL_TEXTURE_1D_ARRAY
)
810 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_RGTC2
);
811 RETURN_IF_SUPPORTED(MESA_FORMAT_GR88
);
815 RETURN_IF_SUPPORTED(MESA_FORMAT_GR1616
);
823 if (ctx
->Extensions
.ARB_texture_rg
&& ctx
->Extensions
.ARB_texture_float
) {
824 switch (internalFormat
) {
826 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
827 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
828 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
829 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
830 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
831 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
834 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT32
);
835 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
836 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
837 RETURN_IF_SUPPORTED(MESA_FORMAT_R_FLOAT16
);
838 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
839 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
842 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
843 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
844 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
845 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
848 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT32
);
849 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT32
);
850 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_FLOAT16
);
851 RETURN_IF_SUPPORTED(MESA_FORMAT_RGBA_FLOAT16
);
859 if (ctx
->Version
>= 30 ||
860 (ctx
->Extensions
.ARB_texture_rg
&&
861 ctx
->Extensions
.EXT_texture_integer
)) {
862 switch (internalFormat
) {
864 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT8
);
867 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT8
);
870 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT16
);
873 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT16
);
876 RETURN_IF_SUPPORTED(MESA_FORMAT_R_UINT32
);
879 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_UINT32
);
882 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT8
);
885 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT8
);
888 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT16
);
891 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT16
);
894 RETURN_IF_SUPPORTED(MESA_FORMAT_R_INT32
);
897 RETURN_IF_SUPPORTED(MESA_FORMAT_RG_INT32
);
904 if (ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
905 switch (internalFormat
) {
907 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB2101010_UINT
);
908 RETURN_IF_SUPPORTED(MESA_FORMAT_ABGR2101010_UINT
);
914 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
916 if (_mesa_is_gles(ctx
)) {
917 switch (internalFormat
) {
919 RETURN_IF_SUPPORTED(MESA_FORMAT_ARGB8888
);
927 _mesa_problem(ctx
, "unexpected format %s in _mesa_choose_tex_format()",
928 _mesa_lookup_enum_by_nr(internalFormat
));
929 return MESA_FORMAT_NONE
;