2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
6 * Copyright (c) 2012 Intel Corporation
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.
29 #include "glformats.h"
31 #include "texcompress.h"
56 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
57 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
58 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
59 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
75 MAP4(ZERO
, ZERO
, ZERO
, 0),
105 MAP4(0, ZERO
, ZERO
, ONE
),
111 MAP4(ZERO
, 0, ZERO
, ONE
),
117 MAP4(ZERO
, ZERO
, 0, ONE
),
141 MAP4(0, 1, ZERO
, ONE
),
147 * Convert a GL image format enum to an IDX_* value (see above).
150 get_map_idx(GLenum value
)
154 case GL_LUMINANCE_INTEGER_EXT
:
155 return IDX_LUMINANCE
;
157 case GL_ALPHA_INTEGER
:
160 return IDX_INTENSITY
;
161 case GL_LUMINANCE_ALPHA
:
162 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
163 return IDX_LUMINANCE_ALPHA
;
168 case GL_RGBA_INTEGER
:
181 case GL_BGRA_INTEGER
:
189 _mesa_problem(NULL
, "Unexpected inFormat %s",
190 _mesa_enum_to_string(value
));
196 * When promoting texture formats (see below) we need to compute the
197 * mapping of dest components back to source components.
198 * This function does that.
199 * \param inFormat the incoming format of the texture
200 * \param outFormat the final texture format
201 * \return map[6] a full 6-component map
204 _mesa_compute_component_mapping(GLenum inFormat
, GLenum outFormat
, GLubyte
*map
)
206 const int inFmt
= get_map_idx(inFormat
);
207 const int outFmt
= get_map_idx(outFormat
);
208 const GLubyte
*in2rgba
= mappings
[inFmt
].to_rgba
;
209 const GLubyte
*rgba2out
= mappings
[outFmt
].from_rgba
;
212 for (i
= 0; i
< 4; i
++)
213 map
[i
] = in2rgba
[rgba2out
[i
]];
219 printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
220 inFormat
, _mesa_enum_to_string(inFormat
),
221 outFormat
, _mesa_enum_to_string(outFormat
),
232 * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
235 _mesa_type_is_packed(GLenum type
)
238 case GL_UNSIGNED_BYTE_3_3_2
:
239 case GL_UNSIGNED_BYTE_2_3_3_REV
:
240 case MESA_UNSIGNED_BYTE_4_4
:
241 case GL_UNSIGNED_SHORT_5_6_5
:
242 case GL_UNSIGNED_SHORT_5_6_5_REV
:
243 case GL_UNSIGNED_SHORT_4_4_4_4
:
244 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
245 case GL_UNSIGNED_SHORT_5_5_5_1
:
246 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
247 case GL_UNSIGNED_INT_8_8_8_8
:
248 case GL_UNSIGNED_INT_8_8_8_8_REV
:
249 case GL_UNSIGNED_INT_10_10_10_2
:
250 case GL_UNSIGNED_INT_2_10_10_10_REV
:
251 case GL_UNSIGNED_SHORT_8_8_MESA
:
252 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
253 case GL_UNSIGNED_INT_24_8_EXT
:
254 case GL_UNSIGNED_INT_5_9_9_9_REV
:
255 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
256 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
265 * Get the size of a GL data type.
267 * \param type GL data type.
269 * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
270 * if an invalid type enum.
273 _mesa_sizeof_type(GLenum type
)
278 case GL_UNSIGNED_BYTE
:
279 return sizeof(GLubyte
);
281 return sizeof(GLbyte
);
282 case GL_UNSIGNED_SHORT
:
283 return sizeof(GLushort
);
285 return sizeof(GLshort
);
286 case GL_UNSIGNED_INT
:
287 return sizeof(GLuint
);
289 return sizeof(GLint
);
291 return sizeof(GLfloat
);
293 return sizeof(GLdouble
);
294 case GL_HALF_FLOAT_ARB
:
295 case GL_HALF_FLOAT_OES
:
296 return sizeof(GLhalfARB
);
298 return sizeof(GLfixed
);
306 * Same as _mesa_sizeof_type() but also accepting the packed pixel
310 _mesa_sizeof_packed_type(GLenum type
)
315 case GL_UNSIGNED_BYTE
:
316 return sizeof(GLubyte
);
318 return sizeof(GLbyte
);
319 case GL_UNSIGNED_SHORT
:
320 return sizeof(GLushort
);
322 return sizeof(GLshort
);
323 case GL_UNSIGNED_INT
:
324 return sizeof(GLuint
);
326 return sizeof(GLint
);
327 case GL_HALF_FLOAT_ARB
:
328 case GL_HALF_FLOAT_OES
:
329 return sizeof(GLhalfARB
);
331 return sizeof(GLfloat
);
332 case GL_UNSIGNED_BYTE_3_3_2
:
333 case GL_UNSIGNED_BYTE_2_3_3_REV
:
334 case MESA_UNSIGNED_BYTE_4_4
:
335 return sizeof(GLubyte
);
336 case GL_UNSIGNED_SHORT_5_6_5
:
337 case GL_UNSIGNED_SHORT_5_6_5_REV
:
338 case GL_UNSIGNED_SHORT_4_4_4_4
:
339 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
340 case GL_UNSIGNED_SHORT_5_5_5_1
:
341 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
342 case GL_UNSIGNED_SHORT_8_8_MESA
:
343 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
344 return sizeof(GLushort
);
345 case GL_UNSIGNED_INT_8_8_8_8
:
346 case GL_UNSIGNED_INT_8_8_8_8_REV
:
347 case GL_UNSIGNED_INT_10_10_10_2
:
348 case GL_UNSIGNED_INT_2_10_10_10_REV
:
349 case GL_UNSIGNED_INT_24_8_EXT
:
350 case GL_UNSIGNED_INT_5_9_9_9_REV
:
351 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
352 return sizeof(GLuint
);
353 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
362 * Get the number of components in a pixel format.
364 * \param format pixel format.
366 * \return the number of components in the given format, or -1 if a bad format.
369 _mesa_components_in_format(GLenum format
)
373 case GL_STENCIL_INDEX
:
374 case GL_DEPTH_COMPONENT
:
376 case GL_RED_INTEGER_EXT
:
378 case GL_GREEN_INTEGER_EXT
:
380 case GL_BLUE_INTEGER_EXT
:
382 case GL_ALPHA_INTEGER_EXT
:
384 case GL_LUMINANCE_INTEGER_EXT
:
388 case GL_LUMINANCE_ALPHA
:
389 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
392 case GL_DEPTH_STENCIL_EXT
:
398 case GL_RGB_INTEGER_EXT
:
399 case GL_BGR_INTEGER_EXT
:
405 case GL_RGBA_INTEGER_EXT
:
406 case GL_BGRA_INTEGER_EXT
:
416 * Get the bytes per pixel of pixel format type pair.
418 * \param format pixel format.
419 * \param type pixel type.
421 * \return bytes per pixel, or -1 if a bad format or type was given.
424 _mesa_bytes_per_pixel(GLenum format
, GLenum type
)
426 GLint comps
= _mesa_components_in_format(format
);
432 return 0; /* special case */
434 case GL_UNSIGNED_BYTE
:
435 return comps
* sizeof(GLubyte
);
437 case GL_UNSIGNED_SHORT
:
438 return comps
* sizeof(GLshort
);
440 case GL_UNSIGNED_INT
:
441 return comps
* sizeof(GLint
);
443 return comps
* sizeof(GLfloat
);
444 case GL_HALF_FLOAT_ARB
:
445 case GL_HALF_FLOAT_OES
:
446 return comps
* sizeof(GLhalfARB
);
447 case GL_UNSIGNED_BYTE_3_3_2
:
448 case GL_UNSIGNED_BYTE_2_3_3_REV
:
449 if (format
== GL_RGB
|| format
== GL_BGR
||
450 format
== GL_RGB_INTEGER_EXT
|| format
== GL_BGR_INTEGER_EXT
)
451 return sizeof(GLubyte
);
453 return -1; /* error */
454 case GL_UNSIGNED_SHORT_5_6_5
:
455 case GL_UNSIGNED_SHORT_5_6_5_REV
:
456 if (format
== GL_RGB
|| format
== GL_BGR
||
457 format
== GL_RGB_INTEGER_EXT
|| format
== GL_BGR_INTEGER_EXT
)
458 return sizeof(GLushort
);
460 return -1; /* error */
461 case GL_UNSIGNED_SHORT_4_4_4_4
:
462 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
463 if (format
== GL_RGBA
|| format
== GL_BGRA
|| format
== GL_ABGR_EXT
||
464 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
)
465 return sizeof(GLushort
);
468 case GL_UNSIGNED_SHORT_5_5_5_1
:
469 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
470 if (format
== GL_RGBA
|| format
== GL_BGRA
||
471 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
)
472 return sizeof(GLushort
);
475 case GL_UNSIGNED_INT_8_8_8_8
:
476 case GL_UNSIGNED_INT_8_8_8_8_REV
:
477 if (format
== GL_RGBA
|| format
== GL_BGRA
|| format
== GL_ABGR_EXT
||
478 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
||
480 return sizeof(GLuint
);
483 case GL_UNSIGNED_INT_10_10_10_2
:
484 case GL_UNSIGNED_INT_2_10_10_10_REV
:
485 if (format
== GL_RGBA
|| format
== GL_BGRA
||
486 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
||
488 return sizeof(GLuint
);
491 case GL_UNSIGNED_SHORT_8_8_MESA
:
492 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
493 if (format
== GL_YCBCR_MESA
)
494 return sizeof(GLushort
);
497 case GL_UNSIGNED_INT_24_8_EXT
:
498 if (format
== GL_DEPTH_COMPONENT
||
499 format
== GL_DEPTH_STENCIL_EXT
)
500 return sizeof(GLuint
);
503 case GL_UNSIGNED_INT_5_9_9_9_REV
:
504 if (format
== GL_RGB
)
505 return sizeof(GLuint
);
508 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
509 if (format
== GL_RGB
)
510 return sizeof(GLuint
);
513 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
514 if (format
== GL_DEPTH_STENCIL
)
525 * Get the number of bytes for a vertex attrib with the given number of
526 * components and type.
528 * \param comps number of components.
529 * \param type data type.
531 * \return bytes per attribute, or -1 if a bad comps/type combination was given.
534 _mesa_bytes_per_vertex_attrib(GLint comps
, GLenum type
)
538 case GL_UNSIGNED_BYTE
:
539 return comps
* sizeof(GLubyte
);
541 case GL_UNSIGNED_SHORT
:
542 return comps
* sizeof(GLshort
);
544 case GL_UNSIGNED_INT
:
545 return comps
* sizeof(GLint
);
547 return comps
* sizeof(GLfloat
);
548 case GL_HALF_FLOAT_ARB
:
549 return comps
* sizeof(GLhalfARB
);
551 return comps
* sizeof(GLdouble
);
553 return comps
* sizeof(GLfixed
);
554 case GL_INT_2_10_10_10_REV
:
555 case GL_UNSIGNED_INT_2_10_10_10_REV
:
557 return sizeof(GLuint
);
560 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
562 return sizeof(GLuint
);
571 * Test if the given format is unsized.
574 _mesa_is_enum_format_unsized(GLenum format
)
589 case GL_LUMINANCE_ALPHA
:
594 case GL_SLUMINANCE_ALPHA
:
601 case GL_INTENSITY_SNORM
:
602 case GL_LUMINANCE_SNORM
:
603 case GL_LUMINANCE_ALPHA_SNORM
:
606 case GL_GREEN_INTEGER
:
607 case GL_BLUE_INTEGER
:
608 case GL_ALPHA_INTEGER
:
610 case GL_RGBA_INTEGER
:
612 case GL_BGRA_INTEGER
:
614 case GL_LUMINANCE_INTEGER_EXT
:
615 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
617 case GL_DEPTH_COMPONENT
:
618 case GL_DEPTH_STENCIL
:
619 case GL_STENCIL_INDEX
:
627 * Test if the given format is a UNORM (unsigned-normalized) format.
630 _mesa_is_enum_format_unorm(GLenum format
)
649 case GL_LUMINANCE_ALPHA
:
650 case GL_SLUMINANCE_ALPHA
:
651 case GL_LUMINANCE4_ALPHA4
:
652 case GL_LUMINANCE6_ALPHA2
:
653 case GL_LUMINANCE8_ALPHA8
:
654 case GL_LUMINANCE12_ALPHA4
:
655 case GL_LUMINANCE12_ALPHA12
:
656 case GL_LUMINANCE16_ALPHA16
:
698 * Test if the given format is a SNORM (signed-normalized) format.
701 _mesa_is_enum_format_snorm(GLenum format
)
704 /* signed, normalized texture formats */
716 case GL_RGBA16_SNORM
:
718 case GL_ALPHA8_SNORM
:
719 case GL_ALPHA16_SNORM
:
720 case GL_LUMINANCE_SNORM
:
721 case GL_LUMINANCE8_SNORM
:
722 case GL_LUMINANCE16_SNORM
:
723 case GL_LUMINANCE_ALPHA_SNORM
:
724 case GL_LUMINANCE8_ALPHA8_SNORM
:
725 case GL_LUMINANCE16_ALPHA16_SNORM
:
726 case GL_INTENSITY_SNORM
:
727 case GL_INTENSITY8_SNORM
:
728 case GL_INTENSITY16_SNORM
:
736 * Test if the given format is an integer (non-normalized) format.
739 _mesa_is_enum_format_unsigned_int(GLenum format
)
742 /* specific integer formats */
743 case GL_RGBA32UI_EXT
:
747 case GL_ALPHA32UI_EXT
:
748 case GL_INTENSITY32UI_EXT
:
749 case GL_LUMINANCE32UI_EXT
:
750 case GL_LUMINANCE_ALPHA32UI_EXT
:
751 case GL_RGBA16UI_EXT
:
755 case GL_ALPHA16UI_EXT
:
756 case GL_INTENSITY16UI_EXT
:
757 case GL_LUMINANCE16UI_EXT
:
758 case GL_LUMINANCE_ALPHA16UI_EXT
:
763 case GL_ALPHA8UI_EXT
:
764 case GL_INTENSITY8UI_EXT
:
765 case GL_LUMINANCE8UI_EXT
:
766 case GL_LUMINANCE_ALPHA8UI_EXT
:
776 * Test if the given format is an integer (non-normalized) format.
779 _mesa_is_enum_format_signed_int(GLenum format
)
782 /* generic integer formats */
783 case GL_RED_INTEGER_EXT
:
784 case GL_GREEN_INTEGER_EXT
:
785 case GL_BLUE_INTEGER_EXT
:
786 case GL_ALPHA_INTEGER_EXT
:
787 case GL_RGB_INTEGER_EXT
:
788 case GL_RGBA_INTEGER_EXT
:
789 case GL_BGR_INTEGER_EXT
:
790 case GL_BGRA_INTEGER_EXT
:
791 case GL_LUMINANCE_INTEGER_EXT
:
792 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
794 /* specific integer formats */
799 case GL_ALPHA32I_EXT
:
800 case GL_INTENSITY32I_EXT
:
801 case GL_LUMINANCE32I_EXT
:
802 case GL_LUMINANCE_ALPHA32I_EXT
:
807 case GL_ALPHA16I_EXT
:
808 case GL_INTENSITY16I_EXT
:
809 case GL_LUMINANCE16I_EXT
:
810 case GL_LUMINANCE_ALPHA16I_EXT
:
816 case GL_INTENSITY8I_EXT
:
817 case GL_LUMINANCE8I_EXT
:
818 case GL_LUMINANCE_ALPHA8I_EXT
:
826 * Test if the given format is an ASTC format.
829 _mesa_is_astc_format(GLenum internalFormat
)
831 switch (internalFormat
) {
832 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR
:
833 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR
:
834 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR
:
835 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR
:
836 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR
:
837 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR
:
838 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR
:
839 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR
:
840 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR
:
841 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR
:
842 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR
:
843 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR
:
844 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR
:
845 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR
:
846 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
:
847 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
:
848 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
:
849 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
:
850 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
:
851 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
:
852 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
:
853 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
:
854 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
:
855 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
:
856 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
:
857 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
:
858 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
:
859 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
:
868 * Test if the given format is an integer (non-normalized) format.
871 _mesa_is_enum_format_integer(GLenum format
)
873 return _mesa_is_enum_format_unsigned_int(format
) ||
874 _mesa_is_enum_format_signed_int(format
);
879 _mesa_is_type_unsigned(GLenum type
)
882 case GL_UNSIGNED_INT
:
883 case GL_UNSIGNED_INT_8_8_8_8
:
884 case GL_UNSIGNED_INT_8_8_8_8_REV
:
885 case GL_UNSIGNED_INT_10_10_10_2
:
886 case GL_UNSIGNED_INT_2_10_10_10_REV
:
888 case GL_UNSIGNED_SHORT
:
889 case GL_UNSIGNED_SHORT_4_4_4_4
:
890 case GL_UNSIGNED_SHORT_5_5_5_1
:
891 case GL_UNSIGNED_SHORT_5_6_5
:
892 case GL_UNSIGNED_SHORT_5_6_5_REV
:
893 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
894 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
895 case GL_UNSIGNED_SHORT_8_8_MESA
:
896 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
898 case GL_UNSIGNED_BYTE
:
899 case GL_UNSIGNED_BYTE_3_3_2
:
900 case GL_UNSIGNED_BYTE_2_3_3_REV
:
910 * Test if the given image format is a color/RGBA format (i.e., not color
911 * index, depth, stencil, etc).
912 * \param format the image format value (may by an internal texture format)
913 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
916 _mesa_is_color_format(GLenum format
)
934 case GL_LUMINANCE_ALPHA
:
935 case GL_LUMINANCE4_ALPHA4
:
936 case GL_LUMINANCE6_ALPHA2
:
937 case GL_LUMINANCE8_ALPHA8
:
938 case GL_LUMINANCE12_ALPHA4
:
939 case GL_LUMINANCE12_ALPHA12
:
940 case GL_LUMINANCE16_ALPHA16
:
973 /* float texture formats */
974 case GL_ALPHA16F_ARB
:
975 case GL_ALPHA32F_ARB
:
976 case GL_LUMINANCE16F_ARB
:
977 case GL_LUMINANCE32F_ARB
:
978 case GL_LUMINANCE_ALPHA16F_ARB
:
979 case GL_LUMINANCE_ALPHA32F_ARB
:
980 case GL_INTENSITY16F_ARB
:
981 case GL_INTENSITY32F_ARB
:
990 /* compressed formats */
991 case GL_COMPRESSED_ALPHA
:
992 case GL_COMPRESSED_LUMINANCE
:
993 case GL_COMPRESSED_LUMINANCE_ALPHA
:
994 case GL_COMPRESSED_INTENSITY
:
995 case GL_COMPRESSED_RED
:
996 case GL_COMPRESSED_RG
:
997 case GL_COMPRESSED_RGB
:
998 case GL_COMPRESSED_RGBA
:
1003 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
1004 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
1005 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
1006 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
1007 case GL_COMPRESSED_RGB_FXT1_3DFX
:
1008 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
1011 case GL_SRGB_ALPHA_EXT
:
1012 case GL_SRGB8_ALPHA8_EXT
:
1013 case GL_SLUMINANCE_ALPHA_EXT
:
1014 case GL_SLUMINANCE8_ALPHA8_EXT
:
1015 case GL_SLUMINANCE_EXT
:
1016 case GL_SLUMINANCE8_EXT
:
1017 case GL_COMPRESSED_SRGB_EXT
:
1018 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
1019 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
1020 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
1021 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
1022 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
1023 case GL_COMPRESSED_SLUMINANCE_EXT
:
1024 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
1025 case GL_COMPRESSED_RED_RGTC1
:
1026 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
1027 case GL_COMPRESSED_RG_RGTC2
:
1028 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
1029 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
1030 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
1031 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
1032 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
1033 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
1034 case GL_ETC1_RGB8_OES
:
1035 case GL_COMPRESSED_RGB8_ETC2
:
1036 case GL_COMPRESSED_SRGB8_ETC2
:
1037 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
1038 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
1039 case GL_COMPRESSED_R11_EAC
:
1040 case GL_COMPRESSED_RG11_EAC
:
1041 case GL_COMPRESSED_SIGNED_R11_EAC
:
1042 case GL_COMPRESSED_SIGNED_RG11_EAC
:
1043 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1044 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1045 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
1046 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
1047 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
1048 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
1049 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR
:
1050 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR
:
1051 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR
:
1052 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR
:
1053 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR
:
1054 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR
:
1055 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR
:
1056 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR
:
1057 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR
:
1058 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR
:
1059 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR
:
1060 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR
:
1061 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR
:
1062 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR
:
1063 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
:
1064 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
:
1065 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
:
1066 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
:
1067 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
:
1068 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
:
1069 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
:
1070 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
:
1071 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
:
1072 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
:
1073 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
:
1074 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
:
1075 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
:
1076 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
:
1077 /* generic integer formats */
1078 case GL_RED_INTEGER_EXT
:
1079 case GL_GREEN_INTEGER_EXT
:
1080 case GL_BLUE_INTEGER_EXT
:
1081 case GL_ALPHA_INTEGER_EXT
:
1082 case GL_RGB_INTEGER_EXT
:
1083 case GL_RGBA_INTEGER_EXT
:
1084 case GL_BGR_INTEGER_EXT
:
1085 case GL_BGRA_INTEGER_EXT
:
1087 case GL_LUMINANCE_INTEGER_EXT
:
1088 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1089 /* sized integer formats */
1090 case GL_RGBA32UI_EXT
:
1091 case GL_RGB32UI_EXT
:
1094 case GL_ALPHA32UI_EXT
:
1095 case GL_INTENSITY32UI_EXT
:
1096 case GL_LUMINANCE32UI_EXT
:
1097 case GL_LUMINANCE_ALPHA32UI_EXT
:
1098 case GL_RGBA16UI_EXT
:
1099 case GL_RGB16UI_EXT
:
1102 case GL_ALPHA16UI_EXT
:
1103 case GL_INTENSITY16UI_EXT
:
1104 case GL_LUMINANCE16UI_EXT
:
1105 case GL_LUMINANCE_ALPHA16UI_EXT
:
1106 case GL_RGBA8UI_EXT
:
1110 case GL_ALPHA8UI_EXT
:
1111 case GL_INTENSITY8UI_EXT
:
1112 case GL_LUMINANCE8UI_EXT
:
1113 case GL_LUMINANCE_ALPHA8UI_EXT
:
1114 case GL_RGBA32I_EXT
:
1118 case GL_ALPHA32I_EXT
:
1119 case GL_INTENSITY32I_EXT
:
1120 case GL_LUMINANCE32I_EXT
:
1121 case GL_LUMINANCE_ALPHA32I_EXT
:
1122 case GL_RGBA16I_EXT
:
1126 case GL_ALPHA16I_EXT
:
1127 case GL_INTENSITY16I_EXT
:
1128 case GL_LUMINANCE16I_EXT
:
1129 case GL_LUMINANCE_ALPHA16I_EXT
:
1134 case GL_ALPHA8I_EXT
:
1135 case GL_INTENSITY8I_EXT
:
1136 case GL_LUMINANCE8I_EXT
:
1137 case GL_LUMINANCE_ALPHA8I_EXT
:
1138 /* signed, normalized texture formats */
1147 case GL_RGB16_SNORM
:
1149 case GL_RGBA8_SNORM
:
1150 case GL_RGBA16_SNORM
:
1151 case GL_ALPHA_SNORM
:
1152 case GL_ALPHA8_SNORM
:
1153 case GL_ALPHA16_SNORM
:
1154 case GL_LUMINANCE_SNORM
:
1155 case GL_LUMINANCE8_SNORM
:
1156 case GL_LUMINANCE16_SNORM
:
1157 case GL_LUMINANCE_ALPHA_SNORM
:
1158 case GL_LUMINANCE8_ALPHA8_SNORM
:
1159 case GL_LUMINANCE16_ALPHA16_SNORM
:
1160 case GL_INTENSITY_SNORM
:
1161 case GL_INTENSITY8_SNORM
:
1162 case GL_INTENSITY16_SNORM
:
1164 case GL_R11F_G11F_B10F
:
1167 case GL_YCBCR_MESA
: /* not considered to be RGB */
1176 * Test if the given image format is a depth component format.
1179 _mesa_is_depth_format(GLenum format
)
1182 case GL_DEPTH_COMPONENT
:
1183 case GL_DEPTH_COMPONENT16
:
1184 case GL_DEPTH_COMPONENT24
:
1185 case GL_DEPTH_COMPONENT32
:
1186 case GL_DEPTH_COMPONENT32F
:
1195 * Test if the given image format is a stencil format.
1198 _mesa_is_stencil_format(GLenum format
)
1201 case GL_STENCIL_INDEX
:
1210 * Test if the given image format is a YCbCr format.
1213 _mesa_is_ycbcr_format(GLenum format
)
1225 * Test if the given image format is a depth+stencil format.
1228 _mesa_is_depthstencil_format(GLenum format
)
1231 case GL_DEPTH24_STENCIL8_EXT
:
1232 case GL_DEPTH_STENCIL_EXT
:
1233 case GL_DEPTH32F_STENCIL8
:
1242 * Test if the given image format is a depth or stencil format.
1245 _mesa_is_depth_or_stencil_format(GLenum format
)
1248 case GL_DEPTH_COMPONENT
:
1249 case GL_DEPTH_COMPONENT16
:
1250 case GL_DEPTH_COMPONENT24
:
1251 case GL_DEPTH_COMPONENT32
:
1252 case GL_STENCIL_INDEX
:
1253 case GL_STENCIL_INDEX1_EXT
:
1254 case GL_STENCIL_INDEX4_EXT
:
1255 case GL_STENCIL_INDEX8_EXT
:
1256 case GL_STENCIL_INDEX16_EXT
:
1257 case GL_DEPTH_STENCIL_EXT
:
1258 case GL_DEPTH24_STENCIL8_EXT
:
1259 case GL_DEPTH_COMPONENT32F
:
1260 case GL_DEPTH32F_STENCIL8
:
1269 * Test if an image format is a supported compressed format.
1270 * \param format the internal format token provided by the user.
1271 * \return GL_TRUE if compressed, GL_FALSE if uncompressed
1274 _mesa_is_compressed_format(const struct gl_context
*ctx
, GLenum format
)
1276 mesa_format m_format
= _mesa_glenum_to_compressed_format(format
);
1278 /* Some formats in this switch have an equivalent mesa_format_layout
1279 * to the compressed formats in the layout switch below and thus
1280 * must be handled first.
1287 return _mesa_is_desktop_gl(ctx
) &&
1288 ctx
->Extensions
.ANGLE_texture_compression_dxt
;
1289 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
1290 return ctx
->API
== API_OPENGL_COMPAT
1291 && ctx
->Extensions
.ATI_texture_compression_3dc
;
1292 case GL_PALETTE4_RGB8_OES
:
1293 case GL_PALETTE4_RGBA8_OES
:
1294 case GL_PALETTE4_R5_G6_B5_OES
:
1295 case GL_PALETTE4_RGBA4_OES
:
1296 case GL_PALETTE4_RGB5_A1_OES
:
1297 case GL_PALETTE8_RGB8_OES
:
1298 case GL_PALETTE8_RGBA8_OES
:
1299 case GL_PALETTE8_R5_G6_B5_OES
:
1300 case GL_PALETTE8_RGBA4_OES
:
1301 case GL_PALETTE8_RGB5_A1_OES
:
1302 return ctx
->API
== API_OPENGLES
;
1305 switch (_mesa_get_format_layout(m_format
)) {
1306 case MESA_FORMAT_LAYOUT_S3TC
:
1307 if (_mesa_get_format_color_encoding(m_format
) == GL_LINEAR
) {
1308 /* Assume that the ANGLE flag will always be set if the
1311 return ctx
->Extensions
.ANGLE_texture_compression_dxt
;
1313 return _mesa_is_desktop_gl(ctx
)
1314 && ctx
->Extensions
.EXT_texture_sRGB
1315 && ctx
->Extensions
.EXT_texture_compression_s3tc
;
1317 case MESA_FORMAT_LAYOUT_FXT1
:
1318 return _mesa_is_desktop_gl(ctx
)
1319 && ctx
->Extensions
.TDFX_texture_compression_FXT1
;
1320 case MESA_FORMAT_LAYOUT_RGTC
:
1321 return _mesa_is_desktop_gl(ctx
)
1322 && ctx
->Extensions
.ARB_texture_compression_rgtc
;
1323 case MESA_FORMAT_LAYOUT_LATC
:
1324 return ctx
->API
== API_OPENGL_COMPAT
1325 && ctx
->Extensions
.EXT_texture_compression_latc
;
1326 case MESA_FORMAT_LAYOUT_ETC1
:
1327 return _mesa_is_gles(ctx
)
1328 && ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
;
1329 case MESA_FORMAT_LAYOUT_ETC2
:
1330 return _mesa_is_gles3(ctx
) || ctx
->Extensions
.ARB_ES3_compatibility
;
1331 case MESA_FORMAT_LAYOUT_BPTC
:
1332 return _mesa_is_desktop_gl(ctx
) &&
1333 ctx
->Extensions
.ARB_texture_compression_bptc
;
1334 case MESA_FORMAT_LAYOUT_ASTC
:
1335 return ctx
->Extensions
.KHR_texture_compression_astc_ldr
;
1342 * Convert various unpack formats to the corresponding base format.
1345 _mesa_unpack_format_to_base_format(GLenum format
)
1348 case GL_RED_INTEGER
:
1350 case GL_GREEN_INTEGER
:
1352 case GL_BLUE_INTEGER
:
1354 case GL_ALPHA_INTEGER
:
1358 case GL_RGB_INTEGER
:
1360 case GL_RGBA_INTEGER
:
1362 case GL_BGR_INTEGER
:
1364 case GL_BGRA_INTEGER
:
1366 case GL_LUMINANCE_INTEGER_EXT
:
1367 return GL_LUMINANCE
;
1368 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1369 return GL_LUMINANCE_ALPHA
;
1380 case GL_LUMINANCE_ALPHA
:
1387 * Convert various base formats to the corresponding integer format.
1390 _mesa_base_format_to_integer_format(GLenum format
)
1394 return GL_RED_INTEGER
;
1396 return GL_GREEN_INTEGER
;
1398 return GL_BLUE_INTEGER
;
1400 return GL_RG_INTEGER
;
1402 return GL_RGB_INTEGER
;
1404 return GL_RGBA_INTEGER
;
1406 return GL_BGR_INTEGER
;
1408 return GL_BGRA_INTEGER
;
1410 return GL_ALPHA_INTEGER
;
1412 return GL_LUMINANCE_INTEGER_EXT
;
1413 case GL_LUMINANCE_ALPHA
:
1414 return GL_LUMINANCE_ALPHA_INTEGER_EXT
;
1422 * Does the given base texture/renderbuffer format have the channel
1426 _mesa_base_format_has_channel(GLenum base_format
, GLenum pname
)
1429 case GL_TEXTURE_RED_SIZE
:
1430 case GL_TEXTURE_RED_TYPE
:
1431 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1432 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1433 if (base_format
== GL_RED
||
1434 base_format
== GL_RG
||
1435 base_format
== GL_RGB
||
1436 base_format
== GL_RGBA
) {
1440 case GL_TEXTURE_GREEN_SIZE
:
1441 case GL_TEXTURE_GREEN_TYPE
:
1442 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1443 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1444 if (base_format
== GL_RG
||
1445 base_format
== GL_RGB
||
1446 base_format
== GL_RGBA
) {
1450 case GL_TEXTURE_BLUE_SIZE
:
1451 case GL_TEXTURE_BLUE_TYPE
:
1452 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1453 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1454 if (base_format
== GL_RGB
||
1455 base_format
== GL_RGBA
) {
1459 case GL_TEXTURE_ALPHA_SIZE
:
1460 case GL_TEXTURE_ALPHA_TYPE
:
1461 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1462 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1463 if (base_format
== GL_RGBA
||
1464 base_format
== GL_ALPHA
||
1465 base_format
== GL_LUMINANCE_ALPHA
) {
1469 case GL_TEXTURE_LUMINANCE_SIZE
:
1470 case GL_TEXTURE_LUMINANCE_TYPE
:
1471 if (base_format
== GL_LUMINANCE
||
1472 base_format
== GL_LUMINANCE_ALPHA
) {
1476 case GL_TEXTURE_INTENSITY_SIZE
:
1477 case GL_TEXTURE_INTENSITY_TYPE
:
1478 if (base_format
== GL_INTENSITY
) {
1482 case GL_TEXTURE_DEPTH_SIZE
:
1483 case GL_TEXTURE_DEPTH_TYPE
:
1484 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1485 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1486 if (base_format
== GL_DEPTH_STENCIL
||
1487 base_format
== GL_DEPTH_COMPONENT
) {
1491 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1492 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1493 if (base_format
== GL_DEPTH_STENCIL
||
1494 base_format
== GL_STENCIL_INDEX
) {
1499 _mesa_warning(NULL
, "%s: Unexpected channel token 0x%x\n",
1509 * Returns the number of channels/components for a base format.
1512 _mesa_base_format_component_count(GLenum base_format
)
1514 switch (base_format
) {
1518 case GL_DEPTH_COMPONENT
:
1521 case GL_LUMINANCE_ALPHA
:
1522 case GL_DEPTH_STENCIL
:
1535 * If format is a generic compressed format, return the corresponding
1536 * non-compressed format. For other formats, return the format as-is.
1539 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format
)
1542 case GL_COMPRESSED_RED
:
1544 case GL_COMPRESSED_RG
:
1546 case GL_COMPRESSED_RGB
:
1548 case GL_COMPRESSED_RGBA
:
1550 case GL_COMPRESSED_ALPHA
:
1552 case GL_COMPRESSED_LUMINANCE
:
1553 return GL_LUMINANCE
;
1554 case GL_COMPRESSED_LUMINANCE_ALPHA
:
1555 return GL_LUMINANCE_ALPHA
;
1556 case GL_COMPRESSED_INTENSITY
:
1557 return GL_INTENSITY
;
1559 case GL_COMPRESSED_SRGB
:
1561 case GL_COMPRESSED_SRGB_ALPHA
:
1562 return GL_SRGB_ALPHA
;
1563 case GL_COMPRESSED_SLUMINANCE
:
1564 return GL_SLUMINANCE
;
1565 case GL_COMPRESSED_SLUMINANCE_ALPHA
:
1566 return GL_SLUMINANCE_ALPHA
;
1574 * Return the equivalent non-generic internal format.
1575 * This is useful for comparing whether two internal formats are equivalent.
1578 _mesa_get_nongeneric_internalformat(GLenum format
)
1581 /* GL 1.1 formats. */
1589 case GL_LUMINANCE_ALPHA
:
1590 return GL_LUMINANCE8_ALPHA8
;
1593 return GL_LUMINANCE8
;
1597 return GL_INTENSITY8
;
1599 /* GL_ARB_texture_rg */
1605 /* GL_EXT_texture_sRGB */
1609 return GL_SRGB8_ALPHA8
;
1611 return GL_SLUMINANCE8
;
1612 case GL_SLUMINANCE_ALPHA
:
1613 return GL_SLUMINANCE8_ALPHA8
;
1615 /* GL_EXT_texture_snorm */
1617 return GL_RGBA8_SNORM
;
1619 return GL_RGB8_SNORM
;
1621 return GL_RG8_SNORM
;
1624 case GL_LUMINANCE_ALPHA_SNORM
:
1625 return GL_LUMINANCE8_ALPHA8_SNORM
;
1626 case GL_LUMINANCE_SNORM
:
1627 return GL_LUMINANCE8_SNORM
;
1628 case GL_ALPHA_SNORM
:
1629 return GL_ALPHA8_SNORM
;
1630 case GL_INTENSITY_SNORM
:
1631 return GL_INTENSITY8_SNORM
;
1640 * Convert an sRGB internal format to linear.
1643 _mesa_get_linear_internalformat(GLenum format
)
1652 case GL_SRGB8_ALPHA8
:
1654 case GL_SLUMINANCE8
:
1655 return GL_LUMINANCE8
;
1657 return GL_LUMINANCE
;
1658 case GL_SLUMINANCE_ALPHA
:
1659 return GL_LUMINANCE_ALPHA
;
1660 case GL_SLUMINANCE8_ALPHA8
:
1661 return GL_LUMINANCE8_ALPHA8
;
1669 * Do error checking of format/type combinations for glReadPixels,
1670 * glDrawPixels and glTex[Sub]Image. Note that depending on the format
1671 * and type values, we may either generate GL_INVALID_OPERATION or
1674 * \param format pixel format.
1675 * \param type pixel type.
1677 * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
1680 _mesa_error_check_format_and_type(const struct gl_context
*ctx
,
1681 GLenum format
, GLenum type
)
1683 /* From OpenGL 3.3 spec, page 220:
1684 * "If the format is DEPTH_STENCIL, then values are taken from
1685 * both the depth buffer and the stencil buffer. If there is no
1686 * depth buffer or if there is no stencil buffer, then the error
1687 * INVALID_OPERATION occurs. If the type parameter is not
1688 * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the
1689 * error INVALID_ENUM occurs."
1691 * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels
1692 * cannot be used to read depth or stencil in that API.
1694 if (_mesa_is_desktop_gl(ctx
) && format
== GL_DEPTH_STENCIL
1695 && type
!= GL_UNSIGNED_INT_24_8
1696 && type
!= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
1697 return GL_INVALID_ENUM
;
1699 /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
1702 if (format
!= GL_COLOR_INDEX
&& format
!= GL_STENCIL_INDEX
) {
1703 return GL_INVALID_ENUM
;
1707 case GL_UNSIGNED_BYTE_3_3_2
:
1708 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1709 case GL_UNSIGNED_SHORT_5_6_5
:
1710 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1711 if (format
== GL_RGB
) {
1714 if (format
== GL_RGB_INTEGER_EXT
&&
1715 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1718 return GL_INVALID_OPERATION
;
1720 case GL_UNSIGNED_SHORT_4_4_4_4
:
1721 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1722 case GL_UNSIGNED_INT_8_8_8_8
:
1723 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1724 if (format
== GL_RGBA
||
1725 format
== GL_BGRA
||
1726 format
== GL_ABGR_EXT
) {
1729 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1730 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1733 return GL_INVALID_OPERATION
;
1735 case GL_UNSIGNED_SHORT_5_5_5_1
:
1736 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1737 case GL_UNSIGNED_INT_10_10_10_2
:
1738 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1739 if (format
== GL_RGBA
||
1740 format
== GL_BGRA
) {
1743 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1744 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1747 if (type
== GL_UNSIGNED_INT_2_10_10_10_REV
&& format
== GL_RGB
&&
1748 ctx
->API
== API_OPENGLES2
) {
1749 break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1751 return GL_INVALID_OPERATION
;
1753 case GL_UNSIGNED_INT_24_8
:
1754 /* Depth buffer OK to read in OpenGL ES (NV_read_depth). */
1755 if (ctx
->API
== API_OPENGLES2
&& format
== GL_DEPTH_COMPONENT
)
1758 if (format
!= GL_DEPTH_STENCIL
) {
1759 return GL_INVALID_OPERATION
;
1763 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
1764 if (!ctx
->Extensions
.ARB_depth_buffer_float
) {
1765 return GL_INVALID_ENUM
;
1767 if (format
!= GL_DEPTH_STENCIL
) {
1768 return GL_INVALID_OPERATION
;
1772 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1773 if (!ctx
->Extensions
.EXT_packed_float
) {
1774 return GL_INVALID_ENUM
;
1776 if (format
!= GL_RGB
) {
1777 return GL_INVALID_OPERATION
;
1781 case GL_HALF_FLOAT_OES
:
1785 case GL_LUMINANCE_ALPHA
:
1791 if (_mesa_is_gles3(ctx
) || ctx
->Extensions
.ARB_texture_rg
)
1794 return GL_INVALID_OPERATION
;
1798 ; /* fall-through */
1801 /* now, for each format, check the type for compatibility */
1803 case GL_COLOR_INDEX
:
1804 case GL_STENCIL_INDEX
:
1808 case GL_UNSIGNED_BYTE
:
1810 case GL_UNSIGNED_SHORT
:
1812 case GL_UNSIGNED_INT
:
1817 return GL_INVALID_ENUM
;
1824 #if 0 /* not legal! see table 3.6 of the 1.5 spec */
1828 case GL_LUMINANCE_ALPHA
:
1829 case GL_DEPTH_COMPONENT
:
1832 case GL_UNSIGNED_BYTE
:
1834 case GL_UNSIGNED_SHORT
:
1836 case GL_UNSIGNED_INT
:
1841 return GL_INVALID_ENUM
;
1845 if (!ctx
->Extensions
.ARB_texture_rg
)
1846 return GL_INVALID_ENUM
;
1849 case GL_UNSIGNED_BYTE
:
1851 case GL_UNSIGNED_SHORT
:
1853 case GL_UNSIGNED_INT
:
1858 return GL_INVALID_ENUM
;
1864 case GL_UNSIGNED_BYTE
:
1866 case GL_UNSIGNED_SHORT
:
1868 case GL_UNSIGNED_INT
:
1870 case GL_UNSIGNED_BYTE_3_3_2
:
1871 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1872 case GL_UNSIGNED_SHORT_5_6_5
:
1873 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1876 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1877 /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1878 return (ctx
->API
== API_OPENGLES2
)
1879 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1880 case GL_UNSIGNED_INT_5_9_9_9_REV
:
1881 return ctx
->Extensions
.EXT_texture_shared_exponent
1882 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1883 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1884 return ctx
->Extensions
.EXT_packed_float
1885 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1887 return GL_INVALID_ENUM
;
1892 /* NOTE: no packed types are supported with BGR. That's
1893 * intentional, according to the GL spec.
1896 case GL_UNSIGNED_BYTE
:
1898 case GL_UNSIGNED_SHORT
:
1900 case GL_UNSIGNED_INT
:
1905 return GL_INVALID_ENUM
;
1912 case GL_UNSIGNED_BYTE
:
1914 case GL_UNSIGNED_SHORT
:
1916 case GL_UNSIGNED_INT
:
1918 case GL_UNSIGNED_SHORT_4_4_4_4
:
1919 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1920 case GL_UNSIGNED_SHORT_5_5_5_1
:
1921 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1922 case GL_UNSIGNED_INT_8_8_8_8
:
1923 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1924 case GL_UNSIGNED_INT_10_10_10_2
:
1925 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1929 return GL_INVALID_ENUM
;
1935 case GL_UNSIGNED_BYTE
:
1937 case GL_UNSIGNED_SHORT
:
1939 case GL_UNSIGNED_INT
:
1941 case GL_UNSIGNED_SHORT_4_4_4_4
:
1942 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1943 case GL_UNSIGNED_INT_8_8_8_8
:
1944 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1948 return GL_INVALID_ENUM
;
1952 if (!ctx
->Extensions
.MESA_ycbcr_texture
)
1953 return GL_INVALID_ENUM
;
1954 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
||
1955 type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
)
1958 return GL_INVALID_OPERATION
;
1960 case GL_DEPTH_STENCIL
:
1961 if (type
== GL_UNSIGNED_INT_24_8
)
1963 else if (ctx
->Extensions
.ARB_depth_buffer_float
&&
1964 type
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
1967 return GL_INVALID_ENUM
;
1969 /* integer-valued formats */
1970 case GL_RED_INTEGER_EXT
:
1971 case GL_GREEN_INTEGER_EXT
:
1972 case GL_BLUE_INTEGER_EXT
:
1973 case GL_ALPHA_INTEGER_EXT
:
1977 case GL_UNSIGNED_BYTE
:
1979 case GL_UNSIGNED_SHORT
:
1981 case GL_UNSIGNED_INT
:
1982 return (ctx
->Version
>= 30 ||
1983 ctx
->Extensions
.EXT_texture_integer
)
1984 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1986 return GL_INVALID_ENUM
;
1989 case GL_RGB_INTEGER_EXT
:
1992 case GL_UNSIGNED_BYTE
:
1994 case GL_UNSIGNED_SHORT
:
1996 case GL_UNSIGNED_INT
:
1997 return (ctx
->Version
>= 30 ||
1998 ctx
->Extensions
.EXT_texture_integer
)
1999 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2000 case GL_UNSIGNED_BYTE_3_3_2
:
2001 case GL_UNSIGNED_BYTE_2_3_3_REV
:
2002 case GL_UNSIGNED_SHORT_5_6_5
:
2003 case GL_UNSIGNED_SHORT_5_6_5_REV
:
2004 return ctx
->Extensions
.ARB_texture_rgb10_a2ui
2005 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2007 return GL_INVALID_ENUM
;
2010 case GL_BGR_INTEGER_EXT
:
2013 case GL_UNSIGNED_BYTE
:
2015 case GL_UNSIGNED_SHORT
:
2017 case GL_UNSIGNED_INT
:
2018 /* NOTE: no packed formats w/ BGR format */
2019 return (ctx
->Version
>= 30 ||
2020 ctx
->Extensions
.EXT_texture_integer
)
2021 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2023 return GL_INVALID_ENUM
;
2026 case GL_RGBA_INTEGER_EXT
:
2027 case GL_BGRA_INTEGER_EXT
:
2030 case GL_UNSIGNED_BYTE
:
2032 case GL_UNSIGNED_SHORT
:
2034 case GL_UNSIGNED_INT
:
2035 return (ctx
->Version
>= 30 ||
2036 ctx
->Extensions
.EXT_texture_integer
)
2037 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2038 case GL_UNSIGNED_SHORT_4_4_4_4
:
2039 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
2040 case GL_UNSIGNED_SHORT_5_5_5_1
:
2041 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
2042 case GL_UNSIGNED_INT_8_8_8_8
:
2043 case GL_UNSIGNED_INT_8_8_8_8_REV
:
2044 case GL_UNSIGNED_INT_10_10_10_2
:
2045 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2046 return ctx
->Extensions
.ARB_texture_rgb10_a2ui
2047 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2049 return GL_INVALID_ENUM
;
2052 case GL_LUMINANCE_INTEGER_EXT
:
2053 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
2056 case GL_UNSIGNED_BYTE
:
2058 case GL_UNSIGNED_SHORT
:
2060 case GL_UNSIGNED_INT
:
2061 return ctx
->Extensions
.EXT_texture_integer
2062 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2064 return GL_INVALID_ENUM
;
2068 return GL_INVALID_ENUM
;
2075 * Do error checking of format/type combinations for OpenGL ES glReadPixels
2076 * and glTex[Sub]Image.
2077 * \return error code, or GL_NO_ERROR.
2080 _mesa_es_error_check_format_and_type(const struct gl_context
*ctx
,
2081 GLenum format
, GLenum type
,
2082 unsigned dimensions
)
2084 GLboolean type_valid
= GL_TRUE
;
2089 if (ctx
->API
== API_OPENGLES
|| !ctx
->Extensions
.ARB_texture_rg
)
2090 return GL_INVALID_VALUE
;
2094 case GL_LUMINANCE_ALPHA
:
2095 type_valid
= (type
== GL_UNSIGNED_BYTE
2097 || type
== GL_HALF_FLOAT_OES
);
2101 type_valid
= (type
== GL_UNSIGNED_BYTE
2102 || type
== GL_UNSIGNED_SHORT_5_6_5
2104 || type
== GL_HALF_FLOAT_OES
);
2108 type_valid
= (type
== GL_UNSIGNED_BYTE
2109 || type
== GL_UNSIGNED_SHORT_4_4_4_4
2110 || type
== GL_UNSIGNED_SHORT_5_5_5_1
2112 || type
== GL_HALF_FLOAT_OES
2113 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
2116 case GL_DEPTH_COMPONENT
:
2117 /* This format is filtered against invalid dimensionalities elsewhere.
2119 type_valid
= (type
== GL_UNSIGNED_SHORT
2120 || type
== GL_UNSIGNED_INT
);
2123 case GL_DEPTH_STENCIL
:
2124 /* This format is filtered against invalid dimensionalities elsewhere.
2126 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
2130 type_valid
= (type
== GL_UNSIGNED_BYTE
);
2132 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
2133 * the format does not appear to be allowed for 3D textures in OpenGL
2136 if (dimensions
!= 2)
2137 return GL_INVALID_VALUE
;
2142 return GL_INVALID_VALUE
;
2145 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
2149 * Return the simple base format for a given internal texture format.
2150 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
2152 * \param ctx GL context.
2153 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
2155 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
2156 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
2158 * This is the format which is used during texture application (i.e. the
2159 * texture format and env mode determine the arithmetic used.
2162 _mesa_base_tex_format(const struct gl_context
*ctx
, GLint internalFormat
)
2164 switch (internalFormat
) {
2170 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
2175 case GL_LUMINANCE12
:
2176 case GL_LUMINANCE16
:
2177 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
2179 case GL_LUMINANCE_ALPHA
:
2180 case GL_LUMINANCE4_ALPHA4
:
2181 case GL_LUMINANCE6_ALPHA2
:
2182 case GL_LUMINANCE8_ALPHA8
:
2183 case GL_LUMINANCE12_ALPHA4
:
2184 case GL_LUMINANCE12_ALPHA12
:
2185 case GL_LUMINANCE16_ALPHA16
:
2186 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
2190 case GL_INTENSITY12
:
2191 case GL_INTENSITY16
:
2192 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
2194 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
2205 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
2219 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
2221 if (_mesa_is_gles(ctx
)) {
2222 switch (internalFormat
) {
2230 if (ctx
->Extensions
.ARB_ES2_compatibility
) {
2231 switch (internalFormat
) {
2239 if (ctx
->Extensions
.ARB_depth_texture
) {
2240 switch (internalFormat
) {
2241 case GL_DEPTH_COMPONENT
:
2242 case GL_DEPTH_COMPONENT16
:
2243 case GL_DEPTH_COMPONENT24
:
2244 case GL_DEPTH_COMPONENT32
:
2245 return GL_DEPTH_COMPONENT
;
2246 case GL_DEPTH_STENCIL
:
2247 case GL_DEPTH24_STENCIL8
:
2248 return GL_DEPTH_STENCIL
;
2254 if (ctx
->Extensions
.ARB_texture_stencil8
) {
2255 switch (internalFormat
) {
2256 case GL_STENCIL_INDEX
:
2257 case GL_STENCIL_INDEX1
:
2258 case GL_STENCIL_INDEX4
:
2259 case GL_STENCIL_INDEX8
:
2260 case GL_STENCIL_INDEX16
:
2261 return GL_STENCIL_INDEX
;
2267 switch (internalFormat
) {
2268 case GL_COMPRESSED_ALPHA
:
2270 case GL_COMPRESSED_LUMINANCE
:
2271 return GL_LUMINANCE
;
2272 case GL_COMPRESSED_LUMINANCE_ALPHA
:
2273 return GL_LUMINANCE_ALPHA
;
2274 case GL_COMPRESSED_INTENSITY
:
2275 return GL_INTENSITY
;
2276 case GL_COMPRESSED_RGB
:
2278 case GL_COMPRESSED_RGBA
:
2284 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2285 GLenum base_compressed
=
2286 _mesa_gl_compressed_format_base_format(internalFormat
);
2287 if (base_compressed
)
2288 return base_compressed
;
2291 if (ctx
->Extensions
.KHR_texture_compression_astc_ldr
&&
2292 _mesa_is_astc_format(internalFormat
))
2295 if (ctx
->Extensions
.MESA_ycbcr_texture
) {
2296 if (internalFormat
== GL_YCBCR_MESA
)
2297 return GL_YCBCR_MESA
;
2300 if (ctx
->Extensions
.ARB_texture_float
) {
2301 switch (internalFormat
) {
2302 case GL_ALPHA16F_ARB
:
2303 case GL_ALPHA32F_ARB
:
2305 case GL_RGBA16F_ARB
:
2306 case GL_RGBA32F_ARB
:
2311 case GL_INTENSITY16F_ARB
:
2312 case GL_INTENSITY32F_ARB
:
2313 return GL_INTENSITY
;
2314 case GL_LUMINANCE16F_ARB
:
2315 case GL_LUMINANCE32F_ARB
:
2316 return GL_LUMINANCE
;
2317 case GL_LUMINANCE_ALPHA16F_ARB
:
2318 case GL_LUMINANCE_ALPHA32F_ARB
:
2319 return GL_LUMINANCE_ALPHA
;
2325 if (ctx
->Extensions
.EXT_texture_snorm
) {
2326 switch (internalFormat
) {
2337 case GL_RGB16_SNORM
:
2340 case GL_RGBA8_SNORM
:
2341 case GL_RGBA16_SNORM
:
2343 case GL_ALPHA_SNORM
:
2344 case GL_ALPHA8_SNORM
:
2345 case GL_ALPHA16_SNORM
:
2347 case GL_LUMINANCE_SNORM
:
2348 case GL_LUMINANCE8_SNORM
:
2349 case GL_LUMINANCE16_SNORM
:
2350 return GL_LUMINANCE
;
2351 case GL_LUMINANCE_ALPHA_SNORM
:
2352 case GL_LUMINANCE8_ALPHA8_SNORM
:
2353 case GL_LUMINANCE16_ALPHA16_SNORM
:
2354 return GL_LUMINANCE_ALPHA
;
2355 case GL_INTENSITY_SNORM
:
2356 case GL_INTENSITY8_SNORM
:
2357 case GL_INTENSITY16_SNORM
:
2358 return GL_INTENSITY
;
2364 if (ctx
->Extensions
.EXT_texture_sRGB
) {
2365 switch (internalFormat
) {
2368 case GL_COMPRESSED_SRGB_EXT
:
2370 case GL_SRGB_ALPHA_EXT
:
2371 case GL_SRGB8_ALPHA8_EXT
:
2372 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
2374 case GL_SLUMINANCE_ALPHA_EXT
:
2375 case GL_SLUMINANCE8_ALPHA8_EXT
:
2376 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
2377 return GL_LUMINANCE_ALPHA
;
2378 case GL_SLUMINANCE_EXT
:
2379 case GL_SLUMINANCE8_EXT
:
2380 case GL_COMPRESSED_SLUMINANCE_EXT
:
2381 return GL_LUMINANCE
;
2387 if (ctx
->Version
>= 30 ||
2388 ctx
->Extensions
.EXT_texture_integer
) {
2389 switch (internalFormat
) {
2390 case GL_RGBA8UI_EXT
:
2391 case GL_RGBA16UI_EXT
:
2392 case GL_RGBA32UI_EXT
:
2394 case GL_RGBA16I_EXT
:
2395 case GL_RGBA32I_EXT
:
2399 case GL_RGB16UI_EXT
:
2400 case GL_RGB32UI_EXT
:
2408 if (ctx
->Extensions
.EXT_texture_integer
) {
2409 switch (internalFormat
) {
2410 case GL_ALPHA8UI_EXT
:
2411 case GL_ALPHA16UI_EXT
:
2412 case GL_ALPHA32UI_EXT
:
2413 case GL_ALPHA8I_EXT
:
2414 case GL_ALPHA16I_EXT
:
2415 case GL_ALPHA32I_EXT
:
2417 case GL_INTENSITY8UI_EXT
:
2418 case GL_INTENSITY16UI_EXT
:
2419 case GL_INTENSITY32UI_EXT
:
2420 case GL_INTENSITY8I_EXT
:
2421 case GL_INTENSITY16I_EXT
:
2422 case GL_INTENSITY32I_EXT
:
2423 return GL_INTENSITY
;
2424 case GL_LUMINANCE8UI_EXT
:
2425 case GL_LUMINANCE16UI_EXT
:
2426 case GL_LUMINANCE32UI_EXT
:
2427 case GL_LUMINANCE8I_EXT
:
2428 case GL_LUMINANCE16I_EXT
:
2429 case GL_LUMINANCE32I_EXT
:
2430 return GL_LUMINANCE
;
2431 case GL_LUMINANCE_ALPHA8UI_EXT
:
2432 case GL_LUMINANCE_ALPHA16UI_EXT
:
2433 case GL_LUMINANCE_ALPHA32UI_EXT
:
2434 case GL_LUMINANCE_ALPHA8I_EXT
:
2435 case GL_LUMINANCE_ALPHA16I_EXT
:
2436 case GL_LUMINANCE_ALPHA32I_EXT
:
2437 return GL_LUMINANCE_ALPHA
;
2443 if (ctx
->Extensions
.ARB_texture_rg
) {
2444 switch (internalFormat
) {
2447 if (!ctx
->Extensions
.ARB_texture_float
)
2456 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
2462 case GL_COMPRESSED_RED
:
2467 if (!ctx
->Extensions
.ARB_texture_float
)
2476 if (ctx
->Version
< 30 && !ctx
->Extensions
.EXT_texture_integer
)
2482 case GL_COMPRESSED_RG
:
2489 if (ctx
->Extensions
.EXT_texture_shared_exponent
) {
2490 switch (internalFormat
) {
2491 case GL_RGB9_E5_EXT
:
2498 if (ctx
->Extensions
.EXT_packed_float
) {
2499 switch (internalFormat
) {
2500 case GL_R11F_G11F_B10F_EXT
:
2507 if (ctx
->Extensions
.ARB_depth_buffer_float
) {
2508 switch (internalFormat
) {
2509 case GL_DEPTH_COMPONENT32F
:
2510 return GL_DEPTH_COMPONENT
;
2511 case GL_DEPTH32F_STENCIL8
:
2512 return GL_DEPTH_STENCIL
;
2518 return -1; /* error */
2522 * Returns the effective internal format from a texture format and type.
2523 * This is used by texture image operations internally for validation, when
2524 * the specified internal format is a base (unsized) format.
2526 * This method will only return a valid effective internal format if the
2527 * combination of format, type and internal format in base form, is acceptable.
2529 * If a single sized internal format is defined in the spec (OpenGL-ES 3.0.4) or
2530 * in extensions, to unambiguously correspond to the given base format, then
2531 * that internal format is returned as the effective. Otherwise, if the
2532 * combination is accepted but a single effective format is not defined, the
2533 * passed base format will be returned instead.
2535 * \param format the texture format
2536 * \param type the texture type
2539 _mesa_es3_effective_internal_format_for_format_and_type(GLenum format
,
2543 case GL_UNSIGNED_BYTE
:
2549 /* Although LUMINANCE_ALPHA, LUMINANCE and ALPHA appear in table 3.12,
2550 * (section 3.8 Texturing, page 128 of the OpenGL-ES 3.0.4) as effective
2551 * internal formats, they do not correspond to GL constants, so the base
2552 * format is returned instead.
2555 case GL_LUMINANCE_ALPHA
:
2562 case GL_UNSIGNED_SHORT_4_4_4_4
:
2563 if (format
== GL_RGBA
)
2567 case GL_UNSIGNED_SHORT_5_5_5_1
:
2568 if (format
== GL_RGBA
)
2572 case GL_UNSIGNED_SHORT_5_6_5
:
2573 if (format
== GL_RGB
)
2577 /* OES_packed_depth_stencil */
2578 case GL_UNSIGNED_INT_24_8
:
2579 if (format
== GL_DEPTH_STENCIL
)
2580 return GL_DEPTH24_STENCIL8
;
2583 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
2584 if (format
== GL_DEPTH_STENCIL
)
2585 return GL_DEPTH32F_STENCIL8
;
2588 case GL_UNSIGNED_SHORT
:
2589 if (format
== GL_DEPTH_COMPONENT
)
2590 return GL_DEPTH_COMPONENT16
;
2593 case GL_UNSIGNED_INT
:
2594 /* It can be DEPTH_COMPONENT16 or DEPTH_COMPONENT24, so just return
2597 if (format
== GL_DEPTH_COMPONENT
)
2601 /* OES_texture_float and OES_texture_half_float */
2603 if (format
== GL_DEPTH_COMPONENT
)
2604 return GL_DEPTH_COMPONENT32F
;
2606 case GL_HALF_FLOAT_OES
:
2610 case GL_LUMINANCE_ALPHA
:
2626 /* GL_EXT_texture_type_2_10_10_10_REV */
2627 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2636 /* fall through and return NONE */
2644 * Do error checking of format/type combinations for OpenGL ES 3
2646 * \return error code, or GL_NO_ERROR.
2649 _mesa_es3_error_check_format_and_type(const struct gl_context
*ctx
,
2650 GLenum format
, GLenum type
,
2651 GLenum internalFormat
)
2653 /* If internalFormat is an unsized format, then the effective internal
2654 * format derived from format and type should be used instead. Page 127,
2655 * section "3.8 Texturing" of the GLES 3.0.4 spec states:
2657 * "if internalformat is a base internal format, the effective
2658 * internal format is a sized internal format that is derived
2659 * from the format and type for internal use by the GL.
2660 * Table 3.12 specifies the mapping of format and type to effective
2661 * internal formats. The effective internal format is used by the GL
2662 * for purposes such as texture completeness or type checks for
2663 * CopyTex* commands. In these cases, the GL is required to operate
2664 * as if the effective internal format was used as the internalformat
2665 * when specifying the texture data."
2667 if (_mesa_is_enum_format_unsized(internalFormat
)) {
2668 GLenum effectiveInternalFormat
=
2669 _mesa_es3_effective_internal_format_for_format_and_type(format
, type
);
2671 if (effectiveInternalFormat
== GL_NONE
)
2672 return GL_INVALID_OPERATION
;
2674 GLenum baseInternalFormat
;
2675 if (internalFormat
== GL_BGRA_EXT
) {
2676 /* Unfortunately, _mesa_base_tex_format returns a base format of
2677 * GL_RGBA for GL_BGRA_EXT. This makes perfect sense if you're
2678 * asking the question, "what channels does this format have?"
2679 * However, if we're trying to determine if two internal formats
2680 * match in the ES3 sense, we actually want GL_BGRA.
2682 baseInternalFormat
= GL_BGRA_EXT
;
2684 baseInternalFormat
=
2685 _mesa_base_tex_format(ctx
, effectiveInternalFormat
);
2688 if (internalFormat
!= baseInternalFormat
)
2689 return GL_INVALID_OPERATION
;
2691 internalFormat
= effectiveInternalFormat
;
2696 if (type
!= GL_UNSIGNED_BYTE
|| internalFormat
!= GL_BGRA
)
2697 return GL_INVALID_OPERATION
;
2702 case GL_UNSIGNED_BYTE
:
2703 switch (internalFormat
) {
2708 case GL_SRGB8_ALPHA8_EXT
:
2711 return GL_INVALID_OPERATION
;
2716 if (internalFormat
!= GL_RGBA8_SNORM
)
2717 return GL_INVALID_OPERATION
;
2720 case GL_UNSIGNED_SHORT_4_4_4_4
:
2721 switch (internalFormat
) {
2726 return GL_INVALID_OPERATION
;
2730 case GL_UNSIGNED_SHORT_5_5_5_1
:
2731 switch (internalFormat
) {
2736 return GL_INVALID_OPERATION
;
2740 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2741 switch (internalFormat
) {
2742 case GL_RGBA
: /* GL_EXT_texture_type_2_10_10_10_REV */
2747 return GL_INVALID_OPERATION
;
2752 if (internalFormat
!= GL_RGBA16F
)
2753 return GL_INVALID_OPERATION
;
2757 switch (internalFormat
) {
2762 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
2765 return GL_INVALID_OPERATION
;
2769 case GL_HALF_FLOAT_OES
:
2770 if (ctx
->Extensions
.OES_texture_half_float
&& internalFormat
== format
)
2773 return GL_INVALID_OPERATION
;
2777 case GL_RGBA_INTEGER
:
2779 case GL_UNSIGNED_BYTE
:
2780 if (internalFormat
!= GL_RGBA8UI
)
2781 return GL_INVALID_OPERATION
;
2785 if (internalFormat
!= GL_RGBA8I
)
2786 return GL_INVALID_OPERATION
;
2789 case GL_UNSIGNED_SHORT
:
2790 if (internalFormat
!= GL_RGBA16UI
)
2791 return GL_INVALID_OPERATION
;
2795 if (internalFormat
!= GL_RGBA16I
)
2796 return GL_INVALID_OPERATION
;
2799 case GL_UNSIGNED_INT
:
2800 if (internalFormat
!= GL_RGBA32UI
)
2801 return GL_INVALID_OPERATION
;
2805 if (internalFormat
!= GL_RGBA32I
)
2806 return GL_INVALID_OPERATION
;
2809 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2810 if (internalFormat
!= GL_RGB10_A2UI
)
2811 return GL_INVALID_OPERATION
;
2815 return GL_INVALID_OPERATION
;
2821 case GL_UNSIGNED_BYTE
:
2822 switch (internalFormat
) {
2829 return GL_INVALID_OPERATION
;
2834 if (internalFormat
!= GL_RGB8_SNORM
)
2835 return GL_INVALID_OPERATION
;
2838 case GL_UNSIGNED_SHORT_5_6_5
:
2839 switch (internalFormat
) {
2844 return GL_INVALID_OPERATION
;
2848 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
2849 if (internalFormat
!= GL_R11F_G11F_B10F
)
2850 return GL_INVALID_OPERATION
;
2853 case GL_UNSIGNED_INT_5_9_9_9_REV
:
2854 if (internalFormat
!= GL_RGB9_E5
)
2855 return GL_INVALID_OPERATION
;
2859 switch (internalFormat
) {
2861 case GL_R11F_G11F_B10F
:
2865 return GL_INVALID_OPERATION
;
2870 switch (internalFormat
) {
2873 case GL_R11F_G11F_B10F
:
2877 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
2880 return GL_INVALID_OPERATION
;
2884 case GL_HALF_FLOAT_OES
:
2885 if (!ctx
->Extensions
.OES_texture_half_float
|| internalFormat
!= format
)
2886 return GL_INVALID_OPERATION
;
2889 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2890 switch (internalFormat
) {
2891 case GL_RGB
: /* GL_EXT_texture_type_2_10_10_10_REV */
2894 return GL_INVALID_OPERATION
;
2899 return GL_INVALID_OPERATION
;
2903 case GL_RGB_INTEGER
:
2905 case GL_UNSIGNED_BYTE
:
2906 if (internalFormat
!= GL_RGB8UI
)
2907 return GL_INVALID_OPERATION
;
2911 if (internalFormat
!= GL_RGB8I
)
2912 return GL_INVALID_OPERATION
;
2915 case GL_UNSIGNED_SHORT
:
2916 if (internalFormat
!= GL_RGB16UI
)
2917 return GL_INVALID_OPERATION
;
2921 if (internalFormat
!= GL_RGB16I
)
2922 return GL_INVALID_OPERATION
;
2925 case GL_UNSIGNED_INT
:
2926 if (internalFormat
!= GL_RGB32UI
)
2927 return GL_INVALID_OPERATION
;
2931 if (internalFormat
!= GL_RGB32I
)
2932 return GL_INVALID_OPERATION
;
2936 return GL_INVALID_OPERATION
;
2942 case GL_UNSIGNED_BYTE
:
2943 if (internalFormat
!= GL_RG8
)
2944 return GL_INVALID_OPERATION
;
2948 if (internalFormat
!= GL_RG8_SNORM
)
2949 return GL_INVALID_OPERATION
;
2953 case GL_HALF_FLOAT_OES
:
2954 switch (internalFormat
) {
2958 if (ctx
->Extensions
.ARB_texture_rg
&&
2959 ctx
->Extensions
.OES_texture_half_float
)
2963 return GL_INVALID_OPERATION
;
2968 switch (internalFormat
) {
2973 if (ctx
->Extensions
.ARB_texture_rg
&&
2974 ctx
->Extensions
.OES_texture_float
)
2978 return GL_INVALID_OPERATION
;
2983 return GL_INVALID_OPERATION
;
2989 case GL_UNSIGNED_BYTE
:
2990 if (internalFormat
!= GL_RG8UI
)
2991 return GL_INVALID_OPERATION
;
2995 if (internalFormat
!= GL_RG8I
)
2996 return GL_INVALID_OPERATION
;
2999 case GL_UNSIGNED_SHORT
:
3000 if (internalFormat
!= GL_RG16UI
)
3001 return GL_INVALID_OPERATION
;
3005 if (internalFormat
!= GL_RG16I
)
3006 return GL_INVALID_OPERATION
;
3009 case GL_UNSIGNED_INT
:
3010 if (internalFormat
!= GL_RG32UI
)
3011 return GL_INVALID_OPERATION
;
3015 if (internalFormat
!= GL_RG32I
)
3016 return GL_INVALID_OPERATION
;
3020 return GL_INVALID_OPERATION
;
3026 case GL_UNSIGNED_BYTE
:
3027 if (internalFormat
!= GL_R8
)
3028 return GL_INVALID_OPERATION
;
3032 if (internalFormat
!= GL_R8_SNORM
)
3033 return GL_INVALID_OPERATION
;
3037 case GL_HALF_FLOAT_OES
:
3038 switch (internalFormat
) {
3043 if (ctx
->Extensions
.ARB_texture_rg
&&
3044 ctx
->Extensions
.OES_texture_half_float
)
3048 return GL_INVALID_OPERATION
;
3053 switch (internalFormat
) {
3058 if (ctx
->Extensions
.ARB_texture_rg
&&
3059 ctx
->Extensions
.OES_texture_float
)
3063 return GL_INVALID_OPERATION
;
3068 return GL_INVALID_OPERATION
;
3072 case GL_RED_INTEGER
:
3074 case GL_UNSIGNED_BYTE
:
3075 if (internalFormat
!= GL_R8UI
)
3076 return GL_INVALID_OPERATION
;
3080 if (internalFormat
!= GL_R8I
)
3081 return GL_INVALID_OPERATION
;
3084 case GL_UNSIGNED_SHORT
:
3085 if (internalFormat
!= GL_R16UI
)
3086 return GL_INVALID_OPERATION
;
3090 if (internalFormat
!= GL_R16I
)
3091 return GL_INVALID_OPERATION
;
3094 case GL_UNSIGNED_INT
:
3095 if (internalFormat
!= GL_R32UI
)
3096 return GL_INVALID_OPERATION
;
3100 if (internalFormat
!= GL_R32I
)
3101 return GL_INVALID_OPERATION
;
3105 return GL_INVALID_OPERATION
;
3109 case GL_DEPTH_COMPONENT
:
3111 case GL_UNSIGNED_SHORT
:
3112 if (internalFormat
!= GL_DEPTH_COMPONENT
3113 && internalFormat
!= GL_DEPTH_COMPONENT16
)
3114 return GL_INVALID_OPERATION
;
3117 case GL_UNSIGNED_INT
:
3118 switch (internalFormat
) {
3119 case GL_DEPTH_COMPONENT
:
3120 case GL_DEPTH_COMPONENT16
:
3121 case GL_DEPTH_COMPONENT24
:
3124 return GL_INVALID_OPERATION
;
3129 if (internalFormat
!= GL_DEPTH_COMPONENT32F
)
3130 return GL_INVALID_OPERATION
;
3134 return GL_INVALID_OPERATION
;
3138 case GL_DEPTH_STENCIL
:
3140 case GL_UNSIGNED_INT_24_8
:
3141 if (internalFormat
!= GL_DEPTH_STENCIL
3142 && internalFormat
!= GL_DEPTH24_STENCIL8
)
3143 return GL_INVALID_OPERATION
;
3146 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
3147 if (internalFormat
!= GL_DEPTH32F_STENCIL8
)
3148 return GL_INVALID_OPERATION
;
3152 return GL_INVALID_OPERATION
;
3158 case GL_LUMINANCE_ALPHA
:
3161 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
3163 case GL_HALF_FLOAT_OES
:
3164 if (ctx
->Extensions
.OES_texture_half_float
&& internalFormat
== format
)
3167 if (type
!= GL_UNSIGNED_BYTE
|| format
!= internalFormat
)
3168 return GL_INVALID_OPERATION
;
3176 set_swizzle(uint8_t *swizzle
, int x
, int y
, int z
, int w
)
3178 swizzle
[MESA_FORMAT_SWIZZLE_X
] = x
;
3179 swizzle
[MESA_FORMAT_SWIZZLE_Y
] = y
;
3180 swizzle
[MESA_FORMAT_SWIZZLE_Z
] = z
;
3181 swizzle
[MESA_FORMAT_SWIZZLE_W
] = w
;
3185 get_swizzle_from_gl_format(GLenum format
, uint8_t *swizzle
)
3189 case GL_RGBA_INTEGER_EXT
:
3190 set_swizzle(swizzle
, 0, 1, 2, 3);
3193 case GL_BGRA_INTEGER_EXT
:
3194 set_swizzle(swizzle
, 2, 1, 0, 3);
3197 set_swizzle(swizzle
, 3, 2, 1, 0);
3200 case GL_RGB_INTEGER_EXT
:
3201 set_swizzle(swizzle
, 0, 1, 2, 5);
3204 case GL_BGR_INTEGER_EXT
:
3205 set_swizzle(swizzle
, 2, 1, 0, 5);
3207 case GL_LUMINANCE_ALPHA
:
3208 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
3209 set_swizzle(swizzle
, 0, 0, 0, 1);
3213 set_swizzle(swizzle
, 0, 1, 4, 5);
3216 case GL_RED_INTEGER_EXT
:
3217 set_swizzle(swizzle
, 0, 4, 4, 5);
3220 case GL_GREEN_INTEGER_EXT
:
3221 set_swizzle(swizzle
, 4, 0, 4, 5);
3224 case GL_BLUE_INTEGER_EXT
:
3225 set_swizzle(swizzle
, 4, 4, 0, 5);
3228 case GL_ALPHA_INTEGER_EXT
:
3229 set_swizzle(swizzle
, 4, 4, 4, 0);
3232 case GL_LUMINANCE_INTEGER_EXT
:
3233 set_swizzle(swizzle
, 0, 0, 0, 5);
3236 set_swizzle(swizzle
, 0, 0, 0, 0);
3244 * Take an OpenGL format (GL_RGB, GL_RGBA, etc), OpenGL data type (GL_INT,
3245 * GL_FOAT, etc) and return a matching mesa_array_format or a mesa_format
3246 * otherwise (for non-array formats).
3248 * This function will typically be used to compute a mesa format from a GL type
3249 * so we can then call _mesa_format_convert. This function does
3250 * not consider byte swapping, so it returns types assuming that no byte
3251 * swapping is involved. If byte swapping is involved then clients are supposed
3252 * to handle that on their side before calling _mesa_format_convert.
3254 * This function returns an uint32_t that can pack a mesa_format or a
3255 * mesa_array_format. Clients must check the mesa array format bit
3256 * (MESA_ARRAY_FORMAT_BIT) on the return value to know if the returned
3257 * format is a mesa_array_format or a mesa_format.
3260 _mesa_format_from_format_and_type(GLenum format
, GLenum type
)
3262 bool is_array_format
= true;
3264 bool normalized
= false, is_float
= false, is_signed
= false;
3265 int num_channels
= 0, type_size
= 0;
3267 /* Extract array format type information from the OpenGL data type */
3269 case GL_UNSIGNED_BYTE
:
3276 case GL_UNSIGNED_SHORT
:
3283 case GL_UNSIGNED_INT
:
3291 case GL_HALF_FLOAT_OES
:
3302 is_array_format
= false;
3306 /* Extract array format swizzle information from the OpenGL format */
3307 if (is_array_format
)
3308 is_array_format
= get_swizzle_from_gl_format(format
, swizzle
);
3310 /* If this is an array format type after checking data type and format,
3311 * create the array format
3313 if (is_array_format
) {
3314 normalized
= !_mesa_is_enum_format_integer(format
);
3315 num_channels
= _mesa_components_in_format(format
);
3317 return MESA_ARRAY_FORMAT(type_size
, is_signed
, is_float
,
3318 normalized
, num_channels
,
3319 swizzle
[0], swizzle
[1], swizzle
[2], swizzle
[3]);
3322 /* Otherwise this is not an array format, so return the mesa_format
3323 * matching the OpenGL format and data type
3326 case GL_UNSIGNED_SHORT_5_6_5
:
3327 if (format
== GL_RGB
)
3328 return MESA_FORMAT_B5G6R5_UNORM
;
3329 else if (format
== GL_BGR
)
3330 return MESA_FORMAT_R5G6B5_UNORM
;
3331 else if (format
== GL_RGB_INTEGER
)
3332 return MESA_FORMAT_B5G6R5_UINT
;
3334 case GL_UNSIGNED_SHORT_5_6_5_REV
:
3335 if (format
== GL_RGB
)
3336 return MESA_FORMAT_R5G6B5_UNORM
;
3337 else if (format
== GL_BGR
)
3338 return MESA_FORMAT_B5G6R5_UNORM
;
3339 else if (format
== GL_RGB_INTEGER
)
3340 return MESA_FORMAT_R5G6B5_UINT
;
3342 case GL_UNSIGNED_SHORT_4_4_4_4
:
3343 if (format
== GL_RGBA
)
3344 return MESA_FORMAT_A4B4G4R4_UNORM
;
3345 else if (format
== GL_BGRA
)
3346 return MESA_FORMAT_A4R4G4B4_UNORM
;
3347 else if (format
== GL_ABGR_EXT
)
3348 return MESA_FORMAT_R4G4B4A4_UNORM
;
3349 else if (format
== GL_RGBA_INTEGER
)
3350 return MESA_FORMAT_A4B4G4R4_UINT
;
3351 else if (format
== GL_BGRA_INTEGER
)
3352 return MESA_FORMAT_A4R4G4B4_UINT
;
3354 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
3355 if (format
== GL_RGBA
)
3356 return MESA_FORMAT_R4G4B4A4_UNORM
;
3357 else if (format
== GL_BGRA
)
3358 return MESA_FORMAT_B4G4R4A4_UNORM
;
3359 else if (format
== GL_ABGR_EXT
)
3360 return MESA_FORMAT_A4B4G4R4_UNORM
;
3361 else if (format
== GL_RGBA_INTEGER
)
3362 return MESA_FORMAT_R4G4B4A4_UINT
;
3363 else if (format
== GL_BGRA_INTEGER
)
3364 return MESA_FORMAT_B4G4R4A4_UINT
;
3366 case GL_UNSIGNED_SHORT_5_5_5_1
:
3367 if (format
== GL_RGBA
)
3368 return MESA_FORMAT_A1B5G5R5_UNORM
;
3369 else if (format
== GL_BGRA
)
3370 return MESA_FORMAT_A1R5G5B5_UNORM
;
3371 else if (format
== GL_RGBA_INTEGER
)
3372 return MESA_FORMAT_A1B5G5R5_UINT
;
3373 else if (format
== GL_BGRA_INTEGER
)
3374 return MESA_FORMAT_A1R5G5B5_UINT
;
3376 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
3377 if (format
== GL_RGBA
)
3378 return MESA_FORMAT_R5G5B5A1_UNORM
;
3379 else if (format
== GL_BGRA
)
3380 return MESA_FORMAT_B5G5R5A1_UNORM
;
3381 else if (format
== GL_RGBA_INTEGER
)
3382 return MESA_FORMAT_R5G5B5A1_UINT
;
3383 else if (format
== GL_BGRA_INTEGER
)
3384 return MESA_FORMAT_B5G5R5A1_UINT
;
3386 case GL_UNSIGNED_BYTE_3_3_2
:
3387 if (format
== GL_RGB
)
3388 return MESA_FORMAT_B2G3R3_UNORM
;
3389 else if (format
== GL_RGB_INTEGER
)
3390 return MESA_FORMAT_B2G3R3_UINT
;
3392 case GL_UNSIGNED_BYTE_2_3_3_REV
:
3393 if (format
== GL_RGB
)
3394 return MESA_FORMAT_R3G3B2_UNORM
;
3395 else if (format
== GL_RGB_INTEGER
)
3396 return MESA_FORMAT_R3G3B2_UINT
;
3398 case GL_UNSIGNED_INT_5_9_9_9_REV
:
3399 if (format
== GL_RGB
)
3400 return MESA_FORMAT_R9G9B9E5_FLOAT
;
3402 case GL_UNSIGNED_INT_10_10_10_2
:
3403 if (format
== GL_RGBA
)
3404 return MESA_FORMAT_A2B10G10R10_UNORM
;
3405 else if (format
== GL_RGBA_INTEGER
)
3406 return MESA_FORMAT_A2B10G10R10_UINT
;
3407 else if (format
== GL_BGRA
)
3408 return MESA_FORMAT_A2R10G10B10_UNORM
;
3409 else if (format
== GL_BGRA_INTEGER
)
3410 return MESA_FORMAT_A2R10G10B10_UINT
;
3412 case GL_UNSIGNED_INT_2_10_10_10_REV
:
3413 if (format
== GL_RGB
)
3414 return MESA_FORMAT_R10G10B10X2_UNORM
;
3415 if (format
== GL_RGBA
)
3416 return MESA_FORMAT_R10G10B10A2_UNORM
;
3417 else if (format
== GL_RGBA_INTEGER
)
3418 return MESA_FORMAT_R10G10B10A2_UINT
;
3419 else if (format
== GL_BGRA
)
3420 return MESA_FORMAT_B10G10R10A2_UNORM
;
3421 else if (format
== GL_BGRA_INTEGER
)
3422 return MESA_FORMAT_B10G10R10A2_UINT
;
3424 case GL_UNSIGNED_INT_8_8_8_8
:
3425 if (format
== GL_RGBA
)
3426 return MESA_FORMAT_A8B8G8R8_UNORM
;
3427 else if (format
== GL_BGRA
)
3428 return MESA_FORMAT_A8R8G8B8_UNORM
;
3429 else if (format
== GL_ABGR_EXT
)
3430 return MESA_FORMAT_R8G8B8A8_UNORM
;
3431 else if (format
== GL_RGBA_INTEGER
)
3432 return MESA_FORMAT_A8B8G8R8_UINT
;
3433 else if (format
== GL_BGRA_INTEGER
)
3434 return MESA_FORMAT_A8R8G8B8_UINT
;
3436 case GL_UNSIGNED_INT_8_8_8_8_REV
:
3437 if (format
== GL_RGBA
)
3438 return MESA_FORMAT_R8G8B8A8_UNORM
;
3439 else if (format
== GL_BGRA
)
3440 return MESA_FORMAT_B8G8R8A8_UNORM
;
3441 else if (format
== GL_ABGR_EXT
)
3442 return MESA_FORMAT_A8B8G8R8_UNORM
;
3443 else if (format
== GL_RGBA_INTEGER
)
3444 return MESA_FORMAT_R8G8B8A8_UINT
;
3445 else if (format
== GL_BGRA_INTEGER
)
3446 return MESA_FORMAT_B8G8R8A8_UINT
;
3448 case GL_UNSIGNED_SHORT_8_8_MESA
:
3449 if (format
== GL_YCBCR_MESA
)
3450 return MESA_FORMAT_YCBCR
;
3452 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
3453 if (format
== GL_YCBCR_MESA
)
3454 return MESA_FORMAT_YCBCR_REV
;
3456 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
3457 if (format
== GL_RGB
)
3458 return MESA_FORMAT_R11G11B10_FLOAT
;
3463 /* If we got here it means that we could not find a Mesa format that
3464 * matches the GL format/type provided. We may need to add a new Mesa
3465 * format in that case.
3467 unreachable("Unsupported format");