1 /**************************************************************************
3 * Copyright 2007 Tungsten Graphics, Inc., Cedar Park, Texas.
4 * Copyright (c) 2008 VMware, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the
9 * "Software"), to deal in the Software without restriction, including
10 * without limitation the rights to use, copy, modify, merge, publish,
11 * distribute, sub license, and/or sell copies of the Software, and to
12 * permit persons to whom the Software is furnished to do so, subject to
13 * the following conditions:
15 * The above copyright notice and this permission notice (including the
16 * next paragraph) shall be included in all copies or substantial portions
19 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
20 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
21 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
22 * IN NO EVENT SHALL TUNGSTEN GRAPHICS AND/OR ITS SUPPLIERS BE LIABLE FOR
23 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
24 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
25 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
27 **************************************************************************/
31 * Texture Image-related functions.
35 #include "main/imports.h"
36 #include "main/context.h"
37 #include "main/texstore.h"
38 #include "main/texformat.h"
39 #include "main/enums.h"
40 #include "main/macros.h"
42 #include "pipe/p_context.h"
43 #include "pipe/p_defines.h"
44 #include "pipe/p_screen.h"
45 #include "st_context.h"
46 #include "st_format.h"
50 pipe_format_rgbazs_t info
,
53 return pf_get_component_bits( (enum pipe_format
) info
, comp
);
58 pipe_format_rgbazs_t info
)
60 GLuint size
= format_bits( info
, PIPE_FORMAT_COMP_R
);
62 size
= MAX2( size
, format_bits( info
, PIPE_FORMAT_COMP_G
) );
63 size
= MAX2( size
, format_bits( info
, PIPE_FORMAT_COMP_B
) );
64 size
= MAX2( size
, format_bits( info
, PIPE_FORMAT_COMP_A
) );
65 size
= MAX2( size
, format_bits( info
, PIPE_FORMAT_COMP_Z
) );
66 size
= MAX2( size
, format_bits( info
, PIPE_FORMAT_COMP_S
) );
72 pipe_format_rgbazs_t info
)
75 format_bits( info
, PIPE_FORMAT_COMP_R
) +
76 format_bits( info
, PIPE_FORMAT_COMP_G
) +
77 format_bits( info
, PIPE_FORMAT_COMP_B
) +
78 format_bits( info
, PIPE_FORMAT_COMP_A
) +
79 format_bits( info
, PIPE_FORMAT_COMP_Z
) +
80 format_bits( info
, PIPE_FORMAT_COMP_S
);
87 st_get_format_info(enum pipe_format format
, struct pipe_format_info
*pinfo
)
89 if (pf_layout(format
) == PIPE_FORMAT_LAYOUT_RGBAZS
) {
90 pipe_format_rgbazs_t info
;
95 printf("%s\n", pf_name( format
) );
99 if (format
== PIPE_FORMAT_A1R5G5B5_UNORM
|| format
== PIPE_FORMAT_R5G6B5_UNORM
) {
100 pinfo
->datatype
= GL_UNSIGNED_SHORT
;
105 size
= format_max_bits( info
);
107 if (pf_type(info
) == PIPE_FORMAT_TYPE_UNORM
)
108 pinfo
->datatype
= GL_UNSIGNED_BYTE
;
110 pinfo
->datatype
= GL_BYTE
;
112 else if (size
== 16) {
113 if (pf_type(info
) == PIPE_FORMAT_TYPE_UNORM
)
114 pinfo
->datatype
= GL_UNSIGNED_SHORT
;
116 pinfo
->datatype
= GL_SHORT
;
119 assert( size
<= 32 );
120 if (pf_type(info
) == PIPE_FORMAT_TYPE_UNORM
)
121 pinfo
->datatype
= GL_UNSIGNED_INT
;
123 pinfo
->datatype
= GL_INT
;
128 pinfo
->red_bits
= format_bits( info
, PIPE_FORMAT_COMP_R
);
129 pinfo
->green_bits
= format_bits( info
, PIPE_FORMAT_COMP_G
);
130 pinfo
->blue_bits
= format_bits( info
, PIPE_FORMAT_COMP_B
);
131 pinfo
->alpha_bits
= format_bits( info
, PIPE_FORMAT_COMP_A
);
132 pinfo
->depth_bits
= format_bits( info
, PIPE_FORMAT_COMP_Z
);
133 pinfo
->stencil_bits
= format_bits( info
, PIPE_FORMAT_COMP_S
);
134 pinfo
->luminance_bits
= 0;
135 pinfo
->intensity_bits
= 0;
138 pinfo
->size
= format_size( info
) / 8;
140 /* Luminance & Intensity bits */
141 if( pf_swizzle_x(info
) == PIPE_FORMAT_COMP_R
&&
142 pf_swizzle_y(info
) == PIPE_FORMAT_COMP_R
&&
143 pf_swizzle_z(info
) == PIPE_FORMAT_COMP_R
) {
144 if( pf_swizzle_w(info
) == PIPE_FORMAT_COMP_R
) {
145 pinfo
->intensity_bits
= pinfo
->red_bits
;
148 pinfo
->luminance_bits
= pinfo
->red_bits
;
154 if (pinfo
->depth_bits
) {
155 if (pinfo
->stencil_bits
) {
156 pinfo
->base_format
= GL_DEPTH_STENCIL_EXT
;
159 pinfo
->base_format
= GL_DEPTH_COMPONENT
;
162 else if (pinfo
->stencil_bits
) {
163 pinfo
->base_format
= GL_STENCIL_INDEX
;
166 pinfo
->base_format
= GL_RGBA
;
169 else if (pf_layout(format
) == PIPE_FORMAT_LAYOUT_YCBCR
) {
170 pinfo
->base_format
= GL_YCBCR_MESA
;
171 pinfo
->datatype
= GL_UNSIGNED_SHORT
;
172 pinfo
->size
= 2; /* two bytes per "texel" */
175 /* compressed format? */
181 "ST_FORMAT: R(%u), G(%u), B(%u), A(%u), Z(%u), S(%u)\n",
187 pinfo
->stencil_bits
);
190 pinfo
->format
= format
;
197 * Return bytes per pixel for the given format.
200 st_sizeof_format(enum pipe_format format
)
202 struct pipe_format_info info
;
203 if (!st_get_format_info( format
, &info
)) {
212 * Return bytes per pixel for the given format.
215 st_format_datatype(enum pipe_format format
)
217 struct pipe_format_info info
;
218 if (!st_get_format_info( format
, &info
)) {
222 return info
.datatype
;
227 st_mesa_format_to_pipe_format(GLuint mesaFormat
)
229 switch (mesaFormat
) {
231 case MESA_FORMAT_ARGB8888_REV
:
232 case MESA_FORMAT_ARGB8888
:
233 return PIPE_FORMAT_A8R8G8B8_UNORM
;
234 case MESA_FORMAT_ARGB1555
:
235 return PIPE_FORMAT_A1R5G5B5_UNORM
;
236 case MESA_FORMAT_ARGB4444
:
237 return PIPE_FORMAT_A4R4G4B4_UNORM
;
238 case MESA_FORMAT_RGB565
:
239 return PIPE_FORMAT_R5G6B5_UNORM
;
240 case MESA_FORMAT_AL88
:
241 return PIPE_FORMAT_A8L8_UNORM
;
243 return PIPE_FORMAT_A8_UNORM
;
245 return PIPE_FORMAT_L8_UNORM
;
247 return PIPE_FORMAT_I8_UNORM
;
248 case MESA_FORMAT_Z16
:
249 return PIPE_FORMAT_Z16_UNORM
;
250 case MESA_FORMAT_Z32
:
251 return PIPE_FORMAT_Z32_UNORM
;
252 case MESA_FORMAT_Z24_S8
:
253 return PIPE_FORMAT_Z24S8_UNORM
;
254 case MESA_FORMAT_S8_Z24
:
255 return PIPE_FORMAT_S8Z24_UNORM
;
256 case MESA_FORMAT_YCBCR
:
257 return PIPE_FORMAT_YCBCR
;
258 #if FEATURE_texture_s3tc
259 case MESA_FORMAT_RGB_DXT1
:
260 return PIPE_FORMAT_DXT1_RGB
;
261 case MESA_FORMAT_RGBA_DXT1
:
262 return PIPE_FORMAT_DXT1_RGBA
;
263 case MESA_FORMAT_RGBA_DXT3
:
264 return PIPE_FORMAT_DXT3_RGBA
;
265 case MESA_FORMAT_RGBA_DXT5
:
266 return PIPE_FORMAT_DXT5_RGBA
;
267 #if FEATURE_EXT_texture_sRGB
268 case MESA_FORMAT_SRGB_DXT1
:
269 return PIPE_FORMAT_DXT1_SRGB
;
270 case MESA_FORMAT_SRGBA_DXT1
:
271 return PIPE_FORMAT_DXT1_SRGBA
;
272 case MESA_FORMAT_SRGBA_DXT3
:
273 return PIPE_FORMAT_DXT3_SRGBA
;
274 case MESA_FORMAT_SRGBA_DXT5
:
275 return PIPE_FORMAT_DXT5_SRGBA
;
278 #if FEATURE_EXT_texture_sRGB
279 case MESA_FORMAT_SLA8
:
280 return PIPE_FORMAT_A8L8_SRGB
;
281 case MESA_FORMAT_SL8
:
282 return PIPE_FORMAT_L8_SRGB
;
283 case MESA_FORMAT_SRGB8
:
284 return PIPE_FORMAT_R8G8B8_SRGB
;
285 case MESA_FORMAT_SRGBA8
:
286 return PIPE_FORMAT_R8G8B8A8_SRGB
;
287 case MESA_FORMAT_SARGB8
:
288 return PIPE_FORMAT_A8R8G8B8_SRGB
;
297 * Find an RGBA format supported by the context/winsys.
299 static enum pipe_format
300 default_rgba_format(struct pipe_screen
*screen
,
301 enum pipe_texture_target target
,
305 static const enum pipe_format colorFormats
[] = {
306 PIPE_FORMAT_A8R8G8B8_UNORM
,
307 PIPE_FORMAT_B8G8R8A8_UNORM
,
308 PIPE_FORMAT_R8G8B8A8_UNORM
,
309 PIPE_FORMAT_R5G6B5_UNORM
312 for (i
= 0; i
< Elements(colorFormats
); i
++) {
313 if (screen
->is_format_supported( screen
, colorFormats
[i
], target
, tex_usage
, geom_flags
)) {
314 return colorFormats
[i
];
317 return PIPE_FORMAT_NONE
;
321 * Find an sRGBA format supported by the context/winsys.
323 static enum pipe_format
324 default_srgba_format(struct pipe_screen
*screen
,
325 enum pipe_texture_target target
,
329 static const enum pipe_format colorFormats
[] = {
330 PIPE_FORMAT_A8R8G8B8_SRGB
,
331 PIPE_FORMAT_B8G8R8A8_SRGB
,
332 PIPE_FORMAT_R8G8B8A8_SRGB
,
335 for (i
= 0; i
< Elements(colorFormats
); i
++) {
336 if (screen
->is_format_supported( screen
, colorFormats
[i
], target
, tex_usage
, geom_flags
)) {
337 return colorFormats
[i
];
340 return PIPE_FORMAT_NONE
;
344 * Search list of formats for first RGBA format with >8 bits/channel.
346 static enum pipe_format
347 default_deep_rgba_format(struct pipe_screen
*screen
,
348 enum pipe_texture_target target
,
352 if (screen
->is_format_supported(screen
, PIPE_FORMAT_R16G16B16A16_SNORM
, target
, tex_usage
, geom_flags
)) {
353 return PIPE_FORMAT_R16G16B16A16_SNORM
;
355 if (tex_usage
& PIPE_TEXTURE_USAGE_RENDER_TARGET
)
356 return default_rgba_format(screen
, target
, tex_usage
, geom_flags
);
358 return PIPE_FORMAT_NONE
;
363 * Find an Z format supported by the context/winsys.
365 static enum pipe_format
366 default_depth_format(struct pipe_screen
*screen
,
367 enum pipe_texture_target target
,
371 static const enum pipe_format zFormats
[] = {
372 PIPE_FORMAT_Z16_UNORM
,
373 PIPE_FORMAT_Z32_UNORM
,
374 PIPE_FORMAT_S8Z24_UNORM
,
375 PIPE_FORMAT_Z24S8_UNORM
378 for (i
= 0; i
< Elements(zFormats
); i
++) {
379 if (screen
->is_format_supported( screen
, zFormats
[i
], target
, tex_usage
, geom_flags
)) {
383 return PIPE_FORMAT_NONE
;
388 * Given an OpenGL internalFormat value for a texture or surface, return
389 * the best matching PIPE_FORMAT_x, or PIPE_FORMAT_NONE if there's no match.
390 * \param target one of PIPE_TEXTURE_x
391 * \param tex_usage either PIPE_TEXTURE_USAGE_RENDER_TARGET
392 * or PIPE_TEXTURE_USAGE_SAMPLER
395 st_choose_format(struct pipe_context
*pipe
, GLint internalFormat
,
396 enum pipe_texture_target target
, unsigned tex_usage
)
398 struct pipe_screen
*screen
= pipe
->screen
;
399 unsigned geom_flags
= 0;
401 switch (internalFormat
) {
404 case GL_COMPRESSED_RGBA
:
407 case GL_COMPRESSED_RGB
:
411 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
413 if (tex_usage
& PIPE_TEXTURE_USAGE_RENDER_TARGET
)
414 return default_deep_rgba_format( screen
, target
, tex_usage
, geom_flags
);
416 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
420 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A4R4G4B4_UNORM
, target
, tex_usage
, geom_flags
))
421 return PIPE_FORMAT_A4R4G4B4_UNORM
;
422 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
425 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A1R5G5B5_UNORM
, target
, tex_usage
, geom_flags
))
426 return PIPE_FORMAT_A1R5G5B5_UNORM
;
427 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
433 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
438 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A1R5G5B5_UNORM
, target
, tex_usage
, geom_flags
))
439 return PIPE_FORMAT_A1R5G5B5_UNORM
;
440 if (screen
->is_format_supported( screen
, PIPE_FORMAT_R5G6B5_UNORM
, target
, tex_usage
, geom_flags
))
441 return PIPE_FORMAT_R5G6B5_UNORM
;
442 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
449 case GL_COMPRESSED_ALPHA
:
450 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A8_UNORM
, target
, tex_usage
, geom_flags
))
451 return PIPE_FORMAT_A8_UNORM
;
452 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
460 case GL_COMPRESSED_LUMINANCE
:
461 if (screen
->is_format_supported( screen
, PIPE_FORMAT_L8_UNORM
, target
, tex_usage
, geom_flags
))
462 return PIPE_FORMAT_L8_UNORM
;
463 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
466 case GL_LUMINANCE_ALPHA
:
467 case GL_LUMINANCE4_ALPHA4
:
468 case GL_LUMINANCE6_ALPHA2
:
469 case GL_LUMINANCE8_ALPHA8
:
470 case GL_LUMINANCE12_ALPHA4
:
471 case GL_LUMINANCE12_ALPHA12
:
472 case GL_LUMINANCE16_ALPHA16
:
473 case GL_COMPRESSED_LUMINANCE_ALPHA
:
474 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A8L8_UNORM
, target
, tex_usage
, geom_flags
))
475 return PIPE_FORMAT_A8L8_UNORM
;
476 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
483 case GL_COMPRESSED_INTENSITY
:
484 if (screen
->is_format_supported( screen
, PIPE_FORMAT_I8_UNORM
, target
, tex_usage
, geom_flags
))
485 return PIPE_FORMAT_I8_UNORM
;
486 return default_rgba_format( screen
, target
, tex_usage
, geom_flags
);
489 if (screen
->is_format_supported(screen
, PIPE_FORMAT_YCBCR
,
490 target
, tex_usage
, geom_flags
)) {
491 return PIPE_FORMAT_YCBCR
;
493 if (screen
->is_format_supported(screen
, PIPE_FORMAT_YCBCR_REV
,
494 target
, tex_usage
, geom_flags
)) {
495 return PIPE_FORMAT_YCBCR_REV
;
497 return PIPE_FORMAT_NONE
;
501 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
502 return PIPE_FORMAT_DXT1_RGB
;
504 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
505 return PIPE_FORMAT_DXT1_RGBA
;
509 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
510 return PIPE_FORMAT_DXT3_RGBA
;
512 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
513 return PIPE_FORMAT_DXT5_RGBA
;
516 case GL_COMPRESSED_RGB_FXT1_3DFX
:
517 return PIPE_FORMAT_RGB_FXT1
;
518 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
519 return PIPE_FORMAT_RGB_FXT1
;
522 case GL_DEPTH_COMPONENT16
:
523 if (screen
->is_format_supported( screen
, PIPE_FORMAT_Z16_UNORM
, target
, tex_usage
, geom_flags
))
524 return PIPE_FORMAT_Z16_UNORM
;
526 case GL_DEPTH_COMPONENT24
:
527 if (screen
->is_format_supported( screen
, PIPE_FORMAT_S8Z24_UNORM
, target
, tex_usage
, geom_flags
))
528 return PIPE_FORMAT_S8Z24_UNORM
;
529 if (screen
->is_format_supported( screen
, PIPE_FORMAT_Z24S8_UNORM
, target
, tex_usage
, geom_flags
))
530 return PIPE_FORMAT_Z24S8_UNORM
;
532 case GL_DEPTH_COMPONENT32
:
533 if (screen
->is_format_supported( screen
, PIPE_FORMAT_Z32_UNORM
, target
, tex_usage
, geom_flags
))
534 return PIPE_FORMAT_Z32_UNORM
;
536 case GL_DEPTH_COMPONENT
:
537 return default_depth_format( screen
, target
, tex_usage
, geom_flags
);
539 case GL_STENCIL_INDEX
:
540 case GL_STENCIL_INDEX1_EXT
:
541 case GL_STENCIL_INDEX4_EXT
:
542 case GL_STENCIL_INDEX8_EXT
:
543 case GL_STENCIL_INDEX16_EXT
:
544 if (screen
->is_format_supported( screen
, PIPE_FORMAT_S8_UNORM
, target
, tex_usage
, geom_flags
))
545 return PIPE_FORMAT_S8_UNORM
;
546 if (screen
->is_format_supported( screen
, PIPE_FORMAT_S8Z24_UNORM
, target
, tex_usage
, geom_flags
))
547 return PIPE_FORMAT_S8Z24_UNORM
;
548 if (screen
->is_format_supported( screen
, PIPE_FORMAT_Z24S8_UNORM
, target
, tex_usage
, geom_flags
))
549 return PIPE_FORMAT_Z24S8_UNORM
;
550 return PIPE_FORMAT_NONE
;
552 case GL_DEPTH_STENCIL_EXT
:
553 case GL_DEPTH24_STENCIL8_EXT
:
554 if (screen
->is_format_supported( screen
, PIPE_FORMAT_S8Z24_UNORM
, target
, tex_usage
, geom_flags
))
555 return PIPE_FORMAT_S8Z24_UNORM
;
556 if (screen
->is_format_supported( screen
, PIPE_FORMAT_Z24S8_UNORM
, target
, tex_usage
, geom_flags
))
557 return PIPE_FORMAT_Z24S8_UNORM
;
558 return PIPE_FORMAT_NONE
;
562 case GL_COMPRESSED_SRGB_EXT
:
563 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
564 case GL_SRGB_ALPHA_EXT
:
565 case GL_SRGB8_ALPHA8_EXT
:
566 return default_srgba_format( screen
, target
, tex_usage
, geom_flags
);
567 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
568 return PIPE_FORMAT_DXT1_SRGB
;
569 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
570 return PIPE_FORMAT_DXT1_SRGBA
;
571 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
572 return PIPE_FORMAT_DXT3_SRGBA
;
573 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
574 return PIPE_FORMAT_DXT5_SRGBA
;
576 case GL_SLUMINANCE_ALPHA_EXT
:
577 case GL_SLUMINANCE8_ALPHA8_EXT
:
578 case GL_COMPRESSED_SLUMINANCE_EXT
:
579 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
580 if (screen
->is_format_supported( screen
, PIPE_FORMAT_A8L8_SRGB
, target
, tex_usage
, geom_flags
))
581 return PIPE_FORMAT_A8L8_SRGB
;
582 return default_srgba_format( screen
, target
, tex_usage
, geom_flags
);
584 case GL_SLUMINANCE_EXT
:
585 case GL_SLUMINANCE8_EXT
:
586 if (screen
->is_format_supported( screen
, PIPE_FORMAT_L8_SRGB
, target
, tex_usage
, geom_flags
))
587 return PIPE_FORMAT_L8_SRGB
;
588 return default_srgba_format( screen
, target
, tex_usage
, geom_flags
);
591 return PIPE_FORMAT_NONE
;
597 is_stencil_format(GLenum format
)
600 case GL_STENCIL_INDEX
:
601 case GL_STENCIL_INDEX1_EXT
:
602 case GL_STENCIL_INDEX4_EXT
:
603 case GL_STENCIL_INDEX8_EXT
:
604 case GL_STENCIL_INDEX16_EXT
:
605 case GL_DEPTH_STENCIL_EXT
:
606 case GL_DEPTH24_STENCIL8_EXT
:
614 * Called by FBO code to choose a PIPE_FORMAT_ for drawing surfaces.
617 st_choose_renderbuffer_format(struct pipe_context
*pipe
, GLint internalFormat
)
620 if (is_stencil_format(internalFormat
))
621 usage
= PIPE_TEXTURE_USAGE_DEPTH_STENCIL
;
623 usage
= PIPE_TEXTURE_USAGE_RENDER_TARGET
;
624 return st_choose_format(pipe
, internalFormat
, PIPE_TEXTURE_2D
, usage
);
628 static const struct gl_texture_format
*
629 translate_gallium_format_to_mesa_format(enum pipe_format format
)
632 case PIPE_FORMAT_A8R8G8B8_UNORM
:
633 return &_mesa_texformat_argb8888
;
634 case PIPE_FORMAT_A1R5G5B5_UNORM
:
635 return &_mesa_texformat_argb1555
;
636 case PIPE_FORMAT_A4R4G4B4_UNORM
:
637 return &_mesa_texformat_argb4444
;
638 case PIPE_FORMAT_R5G6B5_UNORM
:
639 return &_mesa_texformat_rgb565
;
640 case PIPE_FORMAT_A8L8_UNORM
:
641 return &_mesa_texformat_al88
;
642 case PIPE_FORMAT_A8_UNORM
:
643 return &_mesa_texformat_a8
;
644 case PIPE_FORMAT_L8_UNORM
:
645 return &_mesa_texformat_l8
;
646 case PIPE_FORMAT_I8_UNORM
:
647 return &_mesa_texformat_i8
;
648 case PIPE_FORMAT_Z16_UNORM
:
649 return &_mesa_texformat_z16
;
650 case PIPE_FORMAT_Z32_UNORM
:
651 return &_mesa_texformat_z32
;
652 case PIPE_FORMAT_Z24S8_UNORM
:
653 return &_mesa_texformat_z24_s8
;
654 case PIPE_FORMAT_S8Z24_UNORM
:
655 return &_mesa_texformat_s8_z24
;
656 case PIPE_FORMAT_YCBCR
:
657 return &_mesa_texformat_ycbcr
;
658 case PIPE_FORMAT_YCBCR_REV
:
659 return &_mesa_texformat_ycbcr_rev
;
660 #if FEATURE_texture_s3tc
661 case PIPE_FORMAT_DXT1_RGB
:
662 return &_mesa_texformat_rgb_dxt1
;
663 case PIPE_FORMAT_DXT1_RGBA
:
664 return &_mesa_texformat_rgba_dxt1
;
665 case PIPE_FORMAT_DXT3_RGBA
:
666 return &_mesa_texformat_rgba_dxt3
;
667 case PIPE_FORMAT_DXT5_RGBA
:
668 return &_mesa_texformat_rgba_dxt5
;
669 #if FEATURE_EXT_texture_sRGB
670 case PIPE_FORMAT_DXT1_SRGB
:
671 return &_mesa_texformat_srgb_dxt1
;
672 case PIPE_FORMAT_DXT1_SRGBA
:
673 return &_mesa_texformat_srgba_dxt1
;
674 case PIPE_FORMAT_DXT3_SRGBA
:
675 return &_mesa_texformat_srgba_dxt3
;
676 case PIPE_FORMAT_DXT5_SRGBA
:
677 return &_mesa_texformat_srgba_dxt5
;
680 #if FEATURE_EXT_texture_sRGB
681 case PIPE_FORMAT_A8L8_SRGB
:
682 return &_mesa_texformat_sla8
;
683 case PIPE_FORMAT_L8_SRGB
:
684 return &_mesa_texformat_sl8
;
685 case PIPE_FORMAT_R8G8B8_SRGB
:
686 return &_mesa_texformat_srgb8
;
687 case PIPE_FORMAT_R8G8B8A8_SRGB
:
688 return &_mesa_texformat_srgba8
;
689 case PIPE_FORMAT_A8R8G8B8_SRGB
:
690 return &_mesa_texformat_sargb8
;
692 /* XXX add additional cases */
701 * Called via ctx->Driver.chooseTextureFormat().
703 const struct gl_texture_format
*
704 st_ChooseTextureFormat(GLcontext
*ctx
, GLint internalFormat
,
705 GLenum format
, GLenum type
)
707 enum pipe_format pFormat
;
712 pFormat
= st_choose_format(ctx
->st
->pipe
, internalFormat
, PIPE_TEXTURE_2D
,
713 PIPE_TEXTURE_USAGE_SAMPLER
);
714 if (pFormat
== PIPE_FORMAT_NONE
)
717 return translate_gallium_format_to_mesa_format(pFormat
);