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"
55 #define MAP1(x) MAP4(x, ZERO, ZERO, ZERO)
56 #define MAP2(x,y) MAP4(x, y, ZERO, ZERO)
57 #define MAP3(x,y,z) MAP4(x, y, z, ZERO)
58 #define MAP4(x,y,z,w) { x, y, z, w, ZERO, ONE }
74 MAP4(ZERO
, ZERO
, ZERO
, 0),
104 MAP4(0, ZERO
, ZERO
, ONE
),
110 MAP4(ZERO
, 0, ZERO
, ONE
),
116 MAP4(ZERO
, ZERO
, 0, ONE
),
140 MAP4(0, 1, ZERO
, ONE
),
146 * Convert a GL image format enum to an IDX_* value (see above).
149 get_map_idx(GLenum value
)
153 case GL_LUMINANCE_INTEGER_EXT
:
154 return IDX_LUMINANCE
;
156 case GL_ALPHA_INTEGER
:
159 return IDX_INTENSITY
;
160 case GL_LUMINANCE_ALPHA
:
161 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
162 return IDX_LUMINANCE_ALPHA
;
167 case GL_RGBA_INTEGER
:
180 case GL_BGRA_INTEGER
:
188 _mesa_problem(NULL
, "Unexpected inFormat %s",
189 _mesa_enum_to_string(value
));
195 * When promoting texture formats (see below) we need to compute the
196 * mapping of dest components back to source components.
197 * This function does that.
198 * \param inFormat the incoming format of the texture
199 * \param outFormat the final texture format
200 * \return map[6] a full 6-component map
203 _mesa_compute_component_mapping(GLenum inFormat
, GLenum outFormat
, GLubyte
*map
)
205 const int inFmt
= get_map_idx(inFormat
);
206 const int outFmt
= get_map_idx(outFormat
);
207 const GLubyte
*in2rgba
= mappings
[inFmt
].to_rgba
;
208 const GLubyte
*rgba2out
= mappings
[outFmt
].from_rgba
;
211 for (i
= 0; i
< 4; i
++)
212 map
[i
] = in2rgba
[rgba2out
[i
]];
218 printf("from %x/%s to %x/%s map %d %d %d %d %d %d\n",
219 inFormat
, _mesa_enum_to_string(inFormat
),
220 outFormat
, _mesa_enum_to_string(outFormat
),
231 * \return GL_TRUE if type is packed pixel type, GL_FALSE otherwise.
234 _mesa_type_is_packed(GLenum type
)
237 case GL_UNSIGNED_BYTE_3_3_2
:
238 case GL_UNSIGNED_BYTE_2_3_3_REV
:
239 case MESA_UNSIGNED_BYTE_4_4
:
240 case GL_UNSIGNED_SHORT_5_6_5
:
241 case GL_UNSIGNED_SHORT_5_6_5_REV
:
242 case GL_UNSIGNED_SHORT_4_4_4_4
:
243 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
244 case GL_UNSIGNED_SHORT_5_5_5_1
:
245 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
246 case GL_UNSIGNED_INT_8_8_8_8
:
247 case GL_UNSIGNED_INT_8_8_8_8_REV
:
248 case GL_UNSIGNED_INT_10_10_10_2
:
249 case GL_UNSIGNED_INT_2_10_10_10_REV
:
250 case GL_UNSIGNED_SHORT_8_8_MESA
:
251 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
252 case GL_UNSIGNED_INT_24_8_EXT
:
253 case GL_UNSIGNED_INT_5_9_9_9_REV
:
254 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
255 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
264 * Get the size of a GL data type.
266 * \param type GL data type.
268 * \return the size, in bytes, of the given data type, 0 if a GL_BITMAP, or -1
269 * if an invalid type enum.
272 _mesa_sizeof_type(GLenum type
)
277 case GL_UNSIGNED_BYTE
:
278 return sizeof(GLubyte
);
280 return sizeof(GLbyte
);
281 case GL_UNSIGNED_SHORT
:
282 return sizeof(GLushort
);
284 return sizeof(GLshort
);
285 case GL_UNSIGNED_INT
:
286 return sizeof(GLuint
);
288 return sizeof(GLint
);
290 return sizeof(GLfloat
);
292 return sizeof(GLdouble
);
293 case GL_HALF_FLOAT_ARB
:
294 case GL_HALF_FLOAT_OES
:
295 return sizeof(GLhalfARB
);
297 return sizeof(GLfixed
);
305 * Same as _mesa_sizeof_type() but also accepting the packed pixel
309 _mesa_sizeof_packed_type(GLenum type
)
314 case GL_UNSIGNED_BYTE
:
315 return sizeof(GLubyte
);
317 return sizeof(GLbyte
);
318 case GL_UNSIGNED_SHORT
:
319 return sizeof(GLushort
);
321 return sizeof(GLshort
);
322 case GL_UNSIGNED_INT
:
323 return sizeof(GLuint
);
325 return sizeof(GLint
);
326 case GL_HALF_FLOAT_ARB
:
327 case GL_HALF_FLOAT_OES
:
328 return sizeof(GLhalfARB
);
330 return sizeof(GLfloat
);
331 case GL_UNSIGNED_BYTE_3_3_2
:
332 case GL_UNSIGNED_BYTE_2_3_3_REV
:
333 case MESA_UNSIGNED_BYTE_4_4
:
334 return sizeof(GLubyte
);
335 case GL_UNSIGNED_SHORT_5_6_5
:
336 case GL_UNSIGNED_SHORT_5_6_5_REV
:
337 case GL_UNSIGNED_SHORT_4_4_4_4
:
338 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
339 case GL_UNSIGNED_SHORT_5_5_5_1
:
340 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
341 case GL_UNSIGNED_SHORT_8_8_MESA
:
342 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
343 return sizeof(GLushort
);
344 case GL_UNSIGNED_INT_8_8_8_8
:
345 case GL_UNSIGNED_INT_8_8_8_8_REV
:
346 case GL_UNSIGNED_INT_10_10_10_2
:
347 case GL_UNSIGNED_INT_2_10_10_10_REV
:
348 case GL_UNSIGNED_INT_24_8_EXT
:
349 case GL_UNSIGNED_INT_5_9_9_9_REV
:
350 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
351 return sizeof(GLuint
);
352 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
361 * Get the number of components in a pixel format.
363 * \param format pixel format.
365 * \return the number of components in the given format, or -1 if a bad format.
368 _mesa_components_in_format(GLenum format
)
372 case GL_STENCIL_INDEX
:
373 case GL_DEPTH_COMPONENT
:
375 case GL_RED_INTEGER_EXT
:
377 case GL_GREEN_INTEGER_EXT
:
379 case GL_BLUE_INTEGER_EXT
:
381 case GL_ALPHA_INTEGER_EXT
:
383 case GL_LUMINANCE_INTEGER_EXT
:
387 case GL_LUMINANCE_ALPHA
:
388 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
391 case GL_DEPTH_STENCIL_EXT
:
397 case GL_RGB_INTEGER_EXT
:
398 case GL_BGR_INTEGER_EXT
:
404 case GL_RGBA_INTEGER_EXT
:
405 case GL_BGRA_INTEGER_EXT
:
415 * Get the bytes per pixel of pixel format type pair.
417 * \param format pixel format.
418 * \param type pixel type.
420 * \return bytes per pixel, or -1 if a bad format or type was given.
423 _mesa_bytes_per_pixel(GLenum format
, GLenum type
)
425 GLint comps
= _mesa_components_in_format(format
);
431 return 0; /* special case */
433 case GL_UNSIGNED_BYTE
:
434 return comps
* sizeof(GLubyte
);
436 case GL_UNSIGNED_SHORT
:
437 return comps
* sizeof(GLshort
);
439 case GL_UNSIGNED_INT
:
440 return comps
* sizeof(GLint
);
442 return comps
* sizeof(GLfloat
);
443 case GL_HALF_FLOAT_ARB
:
444 case GL_HALF_FLOAT_OES
:
445 return comps
* sizeof(GLhalfARB
);
446 case GL_UNSIGNED_BYTE_3_3_2
:
447 case GL_UNSIGNED_BYTE_2_3_3_REV
:
448 if (format
== GL_RGB
|| format
== GL_BGR
||
449 format
== GL_RGB_INTEGER_EXT
|| format
== GL_BGR_INTEGER_EXT
)
450 return sizeof(GLubyte
);
452 return -1; /* error */
453 case GL_UNSIGNED_SHORT_5_6_5
:
454 case GL_UNSIGNED_SHORT_5_6_5_REV
:
455 if (format
== GL_RGB
|| format
== GL_BGR
||
456 format
== GL_RGB_INTEGER_EXT
|| format
== GL_BGR_INTEGER_EXT
)
457 return sizeof(GLushort
);
459 return -1; /* error */
460 case GL_UNSIGNED_SHORT_4_4_4_4
:
461 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
462 if (format
== GL_RGBA
|| format
== GL_BGRA
|| format
== GL_ABGR_EXT
||
463 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
)
464 return sizeof(GLushort
);
467 case GL_UNSIGNED_SHORT_5_5_5_1
:
468 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
469 if (format
== GL_RGBA
|| format
== GL_BGRA
||
470 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
)
471 return sizeof(GLushort
);
474 case GL_UNSIGNED_INT_8_8_8_8
:
475 case GL_UNSIGNED_INT_8_8_8_8_REV
:
476 if (format
== GL_RGBA
|| format
== GL_BGRA
|| format
== GL_ABGR_EXT
||
477 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
||
479 return sizeof(GLuint
);
482 case GL_UNSIGNED_INT_10_10_10_2
:
483 case GL_UNSIGNED_INT_2_10_10_10_REV
:
484 if (format
== GL_RGBA
|| format
== GL_BGRA
||
485 format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
||
487 return sizeof(GLuint
);
490 case GL_UNSIGNED_SHORT_8_8_MESA
:
491 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
492 if (format
== GL_YCBCR_MESA
)
493 return sizeof(GLushort
);
496 case GL_UNSIGNED_INT_24_8_EXT
:
497 if (format
== GL_DEPTH_STENCIL_EXT
)
498 return sizeof(GLuint
);
501 case GL_UNSIGNED_INT_5_9_9_9_REV
:
502 if (format
== GL_RGB
)
503 return sizeof(GLuint
);
506 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
507 if (format
== GL_RGB
)
508 return sizeof(GLuint
);
511 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
512 if (format
== GL_DEPTH_STENCIL
)
523 * Get the number of bytes for a vertex attrib with the given number of
524 * components and type.
526 * \param comps number of components.
527 * \param type data type.
529 * \return bytes per attribute, or -1 if a bad comps/type combination was given.
532 _mesa_bytes_per_vertex_attrib(GLint comps
, GLenum type
)
536 case GL_UNSIGNED_BYTE
:
537 return comps
* sizeof(GLubyte
);
539 case GL_UNSIGNED_SHORT
:
540 return comps
* sizeof(GLshort
);
542 case GL_UNSIGNED_INT
:
543 return comps
* sizeof(GLint
);
545 return comps
* sizeof(GLfloat
);
546 case GL_HALF_FLOAT_ARB
:
547 return comps
* sizeof(GLhalfARB
);
549 return comps
* sizeof(GLdouble
);
551 return comps
* sizeof(GLfixed
);
552 case GL_INT_2_10_10_10_REV
:
553 case GL_UNSIGNED_INT_2_10_10_10_REV
:
555 return sizeof(GLuint
);
558 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
560 return sizeof(GLuint
);
569 * Test if the given format is unsized.
572 _mesa_is_enum_format_unsized(GLenum format
)
587 case GL_LUMINANCE_ALPHA
:
592 case GL_SLUMINANCE_ALPHA
:
599 case GL_INTENSITY_SNORM
:
600 case GL_LUMINANCE_SNORM
:
601 case GL_LUMINANCE_ALPHA_SNORM
:
604 case GL_GREEN_INTEGER
:
605 case GL_BLUE_INTEGER
:
606 case GL_ALPHA_INTEGER
:
608 case GL_RGBA_INTEGER
:
610 case GL_BGRA_INTEGER
:
612 case GL_LUMINANCE_INTEGER_EXT
:
613 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
615 case GL_DEPTH_COMPONENT
:
616 case GL_DEPTH_STENCIL
:
617 case GL_STENCIL_INDEX
:
625 * Test if the given format is a UNORM (unsigned-normalized) format.
628 _mesa_is_enum_format_unorm(GLenum format
)
647 case GL_LUMINANCE_ALPHA
:
648 case GL_SLUMINANCE_ALPHA
:
649 case GL_LUMINANCE4_ALPHA4
:
650 case GL_LUMINANCE6_ALPHA2
:
651 case GL_LUMINANCE8_ALPHA8
:
652 case GL_LUMINANCE12_ALPHA4
:
653 case GL_LUMINANCE12_ALPHA12
:
654 case GL_LUMINANCE16_ALPHA16
:
696 * Test if the given format is a SNORM (signed-normalized) format.
699 _mesa_is_enum_format_snorm(GLenum format
)
702 /* signed, normalized texture formats */
714 case GL_RGBA16_SNORM
:
716 case GL_ALPHA8_SNORM
:
717 case GL_ALPHA16_SNORM
:
718 case GL_LUMINANCE_SNORM
:
719 case GL_LUMINANCE8_SNORM
:
720 case GL_LUMINANCE16_SNORM
:
721 case GL_LUMINANCE_ALPHA_SNORM
:
722 case GL_LUMINANCE8_ALPHA8_SNORM
:
723 case GL_LUMINANCE16_ALPHA16_SNORM
:
724 case GL_INTENSITY_SNORM
:
725 case GL_INTENSITY8_SNORM
:
726 case GL_INTENSITY16_SNORM
:
734 * Test if the given format is an integer (non-normalized) format.
737 _mesa_is_enum_format_unsigned_int(GLenum format
)
740 /* specific integer formats */
741 case GL_RGBA32UI_EXT
:
745 case GL_ALPHA32UI_EXT
:
746 case GL_INTENSITY32UI_EXT
:
747 case GL_LUMINANCE32UI_EXT
:
748 case GL_LUMINANCE_ALPHA32UI_EXT
:
749 case GL_RGBA16UI_EXT
:
753 case GL_ALPHA16UI_EXT
:
754 case GL_INTENSITY16UI_EXT
:
755 case GL_LUMINANCE16UI_EXT
:
756 case GL_LUMINANCE_ALPHA16UI_EXT
:
761 case GL_ALPHA8UI_EXT
:
762 case GL_INTENSITY8UI_EXT
:
763 case GL_LUMINANCE8UI_EXT
:
764 case GL_LUMINANCE_ALPHA8UI_EXT
:
774 * Test if the given format is an integer (non-normalized) format.
777 _mesa_is_enum_format_signed_int(GLenum format
)
780 /* generic integer formats */
781 case GL_RED_INTEGER_EXT
:
782 case GL_GREEN_INTEGER_EXT
:
783 case GL_BLUE_INTEGER_EXT
:
784 case GL_ALPHA_INTEGER_EXT
:
785 case GL_RGB_INTEGER_EXT
:
786 case GL_RGBA_INTEGER_EXT
:
787 case GL_BGR_INTEGER_EXT
:
788 case GL_BGRA_INTEGER_EXT
:
789 case GL_LUMINANCE_INTEGER_EXT
:
790 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
792 /* specific integer formats */
797 case GL_ALPHA32I_EXT
:
798 case GL_INTENSITY32I_EXT
:
799 case GL_LUMINANCE32I_EXT
:
800 case GL_LUMINANCE_ALPHA32I_EXT
:
805 case GL_ALPHA16I_EXT
:
806 case GL_INTENSITY16I_EXT
:
807 case GL_LUMINANCE16I_EXT
:
808 case GL_LUMINANCE_ALPHA16I_EXT
:
814 case GL_INTENSITY8I_EXT
:
815 case GL_LUMINANCE8I_EXT
:
816 case GL_LUMINANCE_ALPHA8I_EXT
:
825 * Test if the given format is an integer (non-normalized) format.
828 _mesa_is_enum_format_integer(GLenum format
)
830 return _mesa_is_enum_format_unsigned_int(format
) ||
831 _mesa_is_enum_format_signed_int(format
);
836 _mesa_is_type_unsigned(GLenum type
)
839 case GL_UNSIGNED_INT
:
840 case GL_UNSIGNED_INT_8_8_8_8
:
841 case GL_UNSIGNED_INT_8_8_8_8_REV
:
842 case GL_UNSIGNED_INT_10_10_10_2
:
843 case GL_UNSIGNED_INT_2_10_10_10_REV
:
845 case GL_UNSIGNED_SHORT
:
846 case GL_UNSIGNED_SHORT_4_4_4_4
:
847 case GL_UNSIGNED_SHORT_5_5_5_1
:
848 case GL_UNSIGNED_SHORT_5_6_5
:
849 case GL_UNSIGNED_SHORT_5_6_5_REV
:
850 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
851 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
852 case GL_UNSIGNED_SHORT_8_8_MESA
:
853 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
855 case GL_UNSIGNED_BYTE
:
856 case GL_UNSIGNED_BYTE_3_3_2
:
857 case GL_UNSIGNED_BYTE_2_3_3_REV
:
867 * Test if the given image format is a color/RGBA format (i.e., not color
868 * index, depth, stencil, etc).
869 * \param format the image format value (may by an internal texture format)
870 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
873 _mesa_is_color_format(GLenum format
)
891 case GL_LUMINANCE_ALPHA
:
892 case GL_LUMINANCE4_ALPHA4
:
893 case GL_LUMINANCE6_ALPHA2
:
894 case GL_LUMINANCE8_ALPHA8
:
895 case GL_LUMINANCE12_ALPHA4
:
896 case GL_LUMINANCE12_ALPHA12
:
897 case GL_LUMINANCE16_ALPHA16
:
930 /* float texture formats */
931 case GL_ALPHA16F_ARB
:
932 case GL_ALPHA32F_ARB
:
933 case GL_LUMINANCE16F_ARB
:
934 case GL_LUMINANCE32F_ARB
:
935 case GL_LUMINANCE_ALPHA16F_ARB
:
936 case GL_LUMINANCE_ALPHA32F_ARB
:
937 case GL_INTENSITY16F_ARB
:
938 case GL_INTENSITY32F_ARB
:
947 /* compressed formats */
948 case GL_COMPRESSED_ALPHA
:
949 case GL_COMPRESSED_LUMINANCE
:
950 case GL_COMPRESSED_LUMINANCE_ALPHA
:
951 case GL_COMPRESSED_INTENSITY
:
952 case GL_COMPRESSED_RED
:
953 case GL_COMPRESSED_RG
:
954 case GL_COMPRESSED_RGB
:
955 case GL_COMPRESSED_RGBA
:
960 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
961 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
962 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
963 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
964 case GL_COMPRESSED_RGB_FXT1_3DFX
:
965 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
968 case GL_SRGB_ALPHA_EXT
:
969 case GL_SRGB8_ALPHA8_EXT
:
970 case GL_SLUMINANCE_ALPHA_EXT
:
971 case GL_SLUMINANCE8_ALPHA8_EXT
:
972 case GL_SLUMINANCE_EXT
:
973 case GL_SLUMINANCE8_EXT
:
974 case GL_COMPRESSED_SRGB_EXT
:
975 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
976 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
977 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
978 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
979 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
980 case GL_COMPRESSED_SLUMINANCE_EXT
:
981 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
982 case GL_COMPRESSED_RED_RGTC1
:
983 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
984 case GL_COMPRESSED_RG_RGTC2
:
985 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
986 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
987 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
988 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
989 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
990 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
991 case GL_ETC1_RGB8_OES
:
992 case GL_COMPRESSED_RGB8_ETC2
:
993 case GL_COMPRESSED_SRGB8_ETC2
:
994 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
995 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
996 case GL_COMPRESSED_R11_EAC
:
997 case GL_COMPRESSED_RG11_EAC
:
998 case GL_COMPRESSED_SIGNED_R11_EAC
:
999 case GL_COMPRESSED_SIGNED_RG11_EAC
:
1000 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1001 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1002 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
1003 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
1004 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
1005 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
1006 /* generic integer formats */
1007 case GL_RED_INTEGER_EXT
:
1008 case GL_GREEN_INTEGER_EXT
:
1009 case GL_BLUE_INTEGER_EXT
:
1010 case GL_ALPHA_INTEGER_EXT
:
1011 case GL_RGB_INTEGER_EXT
:
1012 case GL_RGBA_INTEGER_EXT
:
1013 case GL_BGR_INTEGER_EXT
:
1014 case GL_BGRA_INTEGER_EXT
:
1016 case GL_LUMINANCE_INTEGER_EXT
:
1017 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1018 /* sized integer formats */
1019 case GL_RGBA32UI_EXT
:
1020 case GL_RGB32UI_EXT
:
1023 case GL_ALPHA32UI_EXT
:
1024 case GL_INTENSITY32UI_EXT
:
1025 case GL_LUMINANCE32UI_EXT
:
1026 case GL_LUMINANCE_ALPHA32UI_EXT
:
1027 case GL_RGBA16UI_EXT
:
1028 case GL_RGB16UI_EXT
:
1031 case GL_ALPHA16UI_EXT
:
1032 case GL_INTENSITY16UI_EXT
:
1033 case GL_LUMINANCE16UI_EXT
:
1034 case GL_LUMINANCE_ALPHA16UI_EXT
:
1035 case GL_RGBA8UI_EXT
:
1039 case GL_ALPHA8UI_EXT
:
1040 case GL_INTENSITY8UI_EXT
:
1041 case GL_LUMINANCE8UI_EXT
:
1042 case GL_LUMINANCE_ALPHA8UI_EXT
:
1043 case GL_RGBA32I_EXT
:
1047 case GL_ALPHA32I_EXT
:
1048 case GL_INTENSITY32I_EXT
:
1049 case GL_LUMINANCE32I_EXT
:
1050 case GL_LUMINANCE_ALPHA32I_EXT
:
1051 case GL_RGBA16I_EXT
:
1055 case GL_ALPHA16I_EXT
:
1056 case GL_INTENSITY16I_EXT
:
1057 case GL_LUMINANCE16I_EXT
:
1058 case GL_LUMINANCE_ALPHA16I_EXT
:
1063 case GL_ALPHA8I_EXT
:
1064 case GL_INTENSITY8I_EXT
:
1065 case GL_LUMINANCE8I_EXT
:
1066 case GL_LUMINANCE_ALPHA8I_EXT
:
1067 /* signed, normalized texture formats */
1076 case GL_RGB16_SNORM
:
1078 case GL_RGBA8_SNORM
:
1079 case GL_RGBA16_SNORM
:
1080 case GL_ALPHA_SNORM
:
1081 case GL_ALPHA8_SNORM
:
1082 case GL_ALPHA16_SNORM
:
1083 case GL_LUMINANCE_SNORM
:
1084 case GL_LUMINANCE8_SNORM
:
1085 case GL_LUMINANCE16_SNORM
:
1086 case GL_LUMINANCE_ALPHA_SNORM
:
1087 case GL_LUMINANCE8_ALPHA8_SNORM
:
1088 case GL_LUMINANCE16_ALPHA16_SNORM
:
1089 case GL_INTENSITY_SNORM
:
1090 case GL_INTENSITY8_SNORM
:
1091 case GL_INTENSITY16_SNORM
:
1093 case GL_R11F_G11F_B10F
:
1096 case GL_YCBCR_MESA
: /* not considered to be RGB */
1105 * Test if the given image format is a depth component format.
1108 _mesa_is_depth_format(GLenum format
)
1111 case GL_DEPTH_COMPONENT
:
1112 case GL_DEPTH_COMPONENT16
:
1113 case GL_DEPTH_COMPONENT24
:
1114 case GL_DEPTH_COMPONENT32
:
1115 case GL_DEPTH_COMPONENT32F
:
1124 * Test if the given image format is a stencil format.
1127 _mesa_is_stencil_format(GLenum format
)
1130 case GL_STENCIL_INDEX
:
1139 * Test if the given image format is a YCbCr format.
1142 _mesa_is_ycbcr_format(GLenum format
)
1154 * Test if the given image format is a depth+stencil format.
1157 _mesa_is_depthstencil_format(GLenum format
)
1160 case GL_DEPTH24_STENCIL8_EXT
:
1161 case GL_DEPTH_STENCIL_EXT
:
1162 case GL_DEPTH32F_STENCIL8
:
1171 * Test if the given image format is a depth or stencil format.
1174 _mesa_is_depth_or_stencil_format(GLenum format
)
1177 case GL_DEPTH_COMPONENT
:
1178 case GL_DEPTH_COMPONENT16
:
1179 case GL_DEPTH_COMPONENT24
:
1180 case GL_DEPTH_COMPONENT32
:
1181 case GL_STENCIL_INDEX
:
1182 case GL_STENCIL_INDEX1_EXT
:
1183 case GL_STENCIL_INDEX4_EXT
:
1184 case GL_STENCIL_INDEX8_EXT
:
1185 case GL_STENCIL_INDEX16_EXT
:
1186 case GL_DEPTH_STENCIL_EXT
:
1187 case GL_DEPTH24_STENCIL8_EXT
:
1188 case GL_DEPTH_COMPONENT32F
:
1189 case GL_DEPTH32F_STENCIL8
:
1198 * Test if an image format is a supported compressed format.
1199 * \param format the internal format token provided by the user.
1200 * \return GL_TRUE if compressed, GL_FALSE if uncompressed
1203 _mesa_is_compressed_format(const struct gl_context
*ctx
, GLenum format
)
1206 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
1207 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
1208 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
1209 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
1210 /* Assume that the ANGLE flag will always be set if the EXT flag is set.
1212 return ctx
->Extensions
.ANGLE_texture_compression_dxt
;
1217 return _mesa_is_desktop_gl(ctx
) &&
1218 ctx
->Extensions
.ANGLE_texture_compression_dxt
;
1219 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
1220 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
1221 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
1222 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
1223 return _mesa_is_desktop_gl(ctx
)
1224 && ctx
->Extensions
.EXT_texture_sRGB
1225 && ctx
->Extensions
.EXT_texture_compression_s3tc
;
1226 case GL_COMPRESSED_RGB_FXT1_3DFX
:
1227 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
1228 return _mesa_is_desktop_gl(ctx
)
1229 && ctx
->Extensions
.TDFX_texture_compression_FXT1
;
1230 case GL_COMPRESSED_RED_RGTC1
:
1231 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
1232 case GL_COMPRESSED_RG_RGTC2
:
1233 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
1234 return _mesa_is_desktop_gl(ctx
)
1235 && ctx
->Extensions
.ARB_texture_compression_rgtc
;
1236 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
1237 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
1238 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
1239 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
1240 return ctx
->API
== API_OPENGL_COMPAT
1241 && ctx
->Extensions
.EXT_texture_compression_latc
;
1242 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
1243 return ctx
->API
== API_OPENGL_COMPAT
1244 && ctx
->Extensions
.ATI_texture_compression_3dc
;
1245 case GL_ETC1_RGB8_OES
:
1246 return _mesa_is_gles(ctx
)
1247 && ctx
->Extensions
.OES_compressed_ETC1_RGB8_texture
;
1248 case GL_COMPRESSED_RGB8_ETC2
:
1249 case GL_COMPRESSED_SRGB8_ETC2
:
1250 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
1251 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
1252 case GL_COMPRESSED_R11_EAC
:
1253 case GL_COMPRESSED_RG11_EAC
:
1254 case GL_COMPRESSED_SIGNED_R11_EAC
:
1255 case GL_COMPRESSED_SIGNED_RG11_EAC
:
1256 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1257 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1258 return _mesa_is_gles3(ctx
) || ctx
->Extensions
.ARB_ES3_compatibility
;
1259 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
1260 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
1261 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
1262 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
1263 return _mesa_is_desktop_gl(ctx
) &&
1264 ctx
->Extensions
.ARB_texture_compression_bptc
;
1265 case GL_PALETTE4_RGB8_OES
:
1266 case GL_PALETTE4_RGBA8_OES
:
1267 case GL_PALETTE4_R5_G6_B5_OES
:
1268 case GL_PALETTE4_RGBA4_OES
:
1269 case GL_PALETTE4_RGB5_A1_OES
:
1270 case GL_PALETTE8_RGB8_OES
:
1271 case GL_PALETTE8_RGBA8_OES
:
1272 case GL_PALETTE8_R5_G6_B5_OES
:
1273 case GL_PALETTE8_RGBA4_OES
:
1274 case GL_PALETTE8_RGB5_A1_OES
:
1275 return ctx
->API
== API_OPENGLES
;
1282 * Convert various unpack formats to the corresponding base format.
1285 _mesa_unpack_format_to_base_format(GLenum format
)
1288 case GL_RED_INTEGER
:
1290 case GL_GREEN_INTEGER
:
1292 case GL_BLUE_INTEGER
:
1294 case GL_ALPHA_INTEGER
:
1298 case GL_RGB_INTEGER
:
1300 case GL_RGBA_INTEGER
:
1302 case GL_BGR_INTEGER
:
1304 case GL_BGRA_INTEGER
:
1306 case GL_LUMINANCE_INTEGER_EXT
:
1307 return GL_LUMINANCE
;
1308 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1309 return GL_LUMINANCE_ALPHA
;
1320 case GL_LUMINANCE_ALPHA
:
1327 * Convert various base formats to the corresponding integer format.
1330 _mesa_base_format_to_integer_format(GLenum format
)
1334 return GL_RED_INTEGER
;
1336 return GL_GREEN_INTEGER
;
1338 return GL_BLUE_INTEGER
;
1340 return GL_RG_INTEGER
;
1342 return GL_RGB_INTEGER
;
1344 return GL_RGBA_INTEGER
;
1346 return GL_BGR_INTEGER
;
1348 return GL_BGRA_INTEGER
;
1350 return GL_ALPHA_INTEGER
;
1352 return GL_LUMINANCE_INTEGER_EXT
;
1353 case GL_LUMINANCE_ALPHA
:
1354 return GL_LUMINANCE_ALPHA_INTEGER_EXT
;
1362 * Does the given base texture/renderbuffer format have the channel
1366 _mesa_base_format_has_channel(GLenum base_format
, GLenum pname
)
1369 case GL_TEXTURE_RED_SIZE
:
1370 case GL_TEXTURE_RED_TYPE
:
1371 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1372 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1373 if (base_format
== GL_RED
||
1374 base_format
== GL_RG
||
1375 base_format
== GL_RGB
||
1376 base_format
== GL_RGBA
) {
1380 case GL_TEXTURE_GREEN_SIZE
:
1381 case GL_TEXTURE_GREEN_TYPE
:
1382 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1383 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1384 if (base_format
== GL_RG
||
1385 base_format
== GL_RGB
||
1386 base_format
== GL_RGBA
) {
1390 case GL_TEXTURE_BLUE_SIZE
:
1391 case GL_TEXTURE_BLUE_TYPE
:
1392 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1393 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1394 if (base_format
== GL_RGB
||
1395 base_format
== GL_RGBA
) {
1399 case GL_TEXTURE_ALPHA_SIZE
:
1400 case GL_TEXTURE_ALPHA_TYPE
:
1401 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1402 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1403 if (base_format
== GL_RGBA
||
1404 base_format
== GL_ALPHA
||
1405 base_format
== GL_LUMINANCE_ALPHA
) {
1409 case GL_TEXTURE_LUMINANCE_SIZE
:
1410 case GL_TEXTURE_LUMINANCE_TYPE
:
1411 if (base_format
== GL_LUMINANCE
||
1412 base_format
== GL_LUMINANCE_ALPHA
) {
1416 case GL_TEXTURE_INTENSITY_SIZE
:
1417 case GL_TEXTURE_INTENSITY_TYPE
:
1418 if (base_format
== GL_INTENSITY
) {
1422 case GL_TEXTURE_DEPTH_SIZE
:
1423 case GL_TEXTURE_DEPTH_TYPE
:
1424 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1425 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1426 if (base_format
== GL_DEPTH_STENCIL
||
1427 base_format
== GL_DEPTH_COMPONENT
) {
1431 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1432 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1433 if (base_format
== GL_DEPTH_STENCIL
||
1434 base_format
== GL_STENCIL_INDEX
) {
1439 _mesa_warning(NULL
, "%s: Unexpected channel token 0x%x\n",
1449 * Returns the number of channels/components for a base format.
1452 _mesa_base_format_component_count(GLenum base_format
)
1454 switch (base_format
) {
1458 case GL_DEPTH_COMPONENT
:
1461 case GL_LUMINANCE_ALPHA
:
1462 case GL_DEPTH_STENCIL
:
1475 * If format is a generic compressed format, return the corresponding
1476 * non-compressed format. For other formats, return the format as-is.
1479 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format
)
1482 case GL_COMPRESSED_RED
:
1484 case GL_COMPRESSED_RG
:
1486 case GL_COMPRESSED_RGB
:
1488 case GL_COMPRESSED_RGBA
:
1490 case GL_COMPRESSED_ALPHA
:
1492 case GL_COMPRESSED_LUMINANCE
:
1493 return GL_LUMINANCE
;
1494 case GL_COMPRESSED_LUMINANCE_ALPHA
:
1495 return GL_LUMINANCE_ALPHA
;
1496 case GL_COMPRESSED_INTENSITY
:
1497 return GL_INTENSITY
;
1499 case GL_COMPRESSED_SRGB
:
1501 case GL_COMPRESSED_SRGB_ALPHA
:
1502 return GL_SRGB_ALPHA
;
1503 case GL_COMPRESSED_SLUMINANCE
:
1504 return GL_SLUMINANCE
;
1505 case GL_COMPRESSED_SLUMINANCE_ALPHA
:
1506 return GL_SLUMINANCE_ALPHA
;
1514 * Return the equivalent non-generic internal format.
1515 * This is useful for comparing whether two internal formats are equivalent.
1518 _mesa_get_nongeneric_internalformat(GLenum format
)
1521 /* GL 1.1 formats. */
1529 case GL_LUMINANCE_ALPHA
:
1530 return GL_LUMINANCE8_ALPHA8
;
1533 return GL_LUMINANCE8
;
1537 return GL_INTENSITY8
;
1539 /* GL_ARB_texture_rg */
1545 /* GL_EXT_texture_sRGB */
1549 return GL_SRGB8_ALPHA8
;
1551 return GL_SLUMINANCE8
;
1552 case GL_SLUMINANCE_ALPHA
:
1553 return GL_SLUMINANCE8_ALPHA8
;
1555 /* GL_EXT_texture_snorm */
1557 return GL_RGBA8_SNORM
;
1559 return GL_RGB8_SNORM
;
1561 return GL_RG8_SNORM
;
1564 case GL_LUMINANCE_ALPHA_SNORM
:
1565 return GL_LUMINANCE8_ALPHA8_SNORM
;
1566 case GL_LUMINANCE_SNORM
:
1567 return GL_LUMINANCE8_SNORM
;
1568 case GL_ALPHA_SNORM
:
1569 return GL_ALPHA8_SNORM
;
1570 case GL_INTENSITY_SNORM
:
1571 return GL_INTENSITY8_SNORM
;
1580 * Convert an sRGB internal format to linear.
1583 _mesa_get_linear_internalformat(GLenum format
)
1592 case GL_SRGB8_ALPHA8
:
1594 case GL_SLUMINANCE8
:
1595 return GL_LUMINANCE8
;
1597 return GL_LUMINANCE
;
1598 case GL_SLUMINANCE_ALPHA
:
1599 return GL_LUMINANCE_ALPHA
;
1600 case GL_SLUMINANCE8_ALPHA8
:
1601 return GL_LUMINANCE8_ALPHA8
;
1609 * Do error checking of format/type combinations for glReadPixels,
1610 * glDrawPixels and glTex[Sub]Image. Note that depending on the format
1611 * and type values, we may either generate GL_INVALID_OPERATION or
1614 * \param format pixel format.
1615 * \param type pixel type.
1617 * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
1620 _mesa_error_check_format_and_type(const struct gl_context
*ctx
,
1621 GLenum format
, GLenum type
)
1623 /* From OpenGL 3.3 spec, page 220:
1624 * "If the format is DEPTH_STENCIL, then values are taken from
1625 * both the depth buffer and the stencil buffer. If there is no
1626 * depth buffer or if there is no stencil buffer, then the error
1627 * INVALID_OPERATION occurs. If the type parameter is not
1628 * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the
1629 * error INVALID_ENUM occurs."
1631 * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels
1632 * cannot be used to read depth or stencil in that API.
1634 if (_mesa_is_desktop_gl(ctx
) && format
== GL_DEPTH_STENCIL
1635 && type
!= GL_UNSIGNED_INT_24_8
1636 && type
!= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
1637 return GL_INVALID_ENUM
;
1639 /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
1642 if (format
!= GL_COLOR_INDEX
&& format
!= GL_STENCIL_INDEX
) {
1643 return GL_INVALID_ENUM
;
1647 case GL_UNSIGNED_BYTE_3_3_2
:
1648 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1649 case GL_UNSIGNED_SHORT_5_6_5
:
1650 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1651 if (format
== GL_RGB
) {
1654 if (format
== GL_RGB_INTEGER_EXT
&&
1655 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1658 return GL_INVALID_OPERATION
;
1660 case GL_UNSIGNED_SHORT_4_4_4_4
:
1661 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1662 case GL_UNSIGNED_INT_8_8_8_8
:
1663 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1664 if (format
== GL_RGBA
||
1665 format
== GL_BGRA
||
1666 format
== GL_ABGR_EXT
) {
1669 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1670 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1673 return GL_INVALID_OPERATION
;
1675 case GL_UNSIGNED_SHORT_5_5_5_1
:
1676 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1677 case GL_UNSIGNED_INT_10_10_10_2
:
1678 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1679 if (format
== GL_RGBA
||
1680 format
== GL_BGRA
) {
1683 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1684 ctx
->Extensions
.ARB_texture_rgb10_a2ui
) {
1687 if (type
== GL_UNSIGNED_INT_2_10_10_10_REV
&& format
== GL_RGB
&&
1688 ctx
->API
== API_OPENGLES2
) {
1689 break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1691 return GL_INVALID_OPERATION
;
1693 case GL_UNSIGNED_INT_24_8
:
1694 if (format
!= GL_DEPTH_STENCIL
) {
1695 return GL_INVALID_OPERATION
;
1699 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
1700 if (!ctx
->Extensions
.ARB_depth_buffer_float
) {
1701 return GL_INVALID_ENUM
;
1703 if (format
!= GL_DEPTH_STENCIL
) {
1704 return GL_INVALID_OPERATION
;
1708 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1709 if (!ctx
->Extensions
.EXT_packed_float
) {
1710 return GL_INVALID_ENUM
;
1712 if (format
!= GL_RGB
) {
1713 return GL_INVALID_OPERATION
;
1717 case GL_HALF_FLOAT_OES
:
1721 case GL_LUMINANCE_ALPHA
:
1727 if (_mesa_is_gles3(ctx
) || ctx
->Extensions
.ARB_texture_rg
)
1730 return GL_INVALID_OPERATION
;
1734 ; /* fall-through */
1737 /* now, for each format, check the type for compatibility */
1739 case GL_COLOR_INDEX
:
1740 case GL_STENCIL_INDEX
:
1744 case GL_UNSIGNED_BYTE
:
1746 case GL_UNSIGNED_SHORT
:
1748 case GL_UNSIGNED_INT
:
1753 return GL_INVALID_ENUM
;
1760 #if 0 /* not legal! see table 3.6 of the 1.5 spec */
1764 case GL_LUMINANCE_ALPHA
:
1765 case GL_DEPTH_COMPONENT
:
1768 case GL_UNSIGNED_BYTE
:
1770 case GL_UNSIGNED_SHORT
:
1772 case GL_UNSIGNED_INT
:
1777 return GL_INVALID_ENUM
;
1781 if (!ctx
->Extensions
.ARB_texture_rg
)
1782 return GL_INVALID_ENUM
;
1785 case GL_UNSIGNED_BYTE
:
1787 case GL_UNSIGNED_SHORT
:
1789 case GL_UNSIGNED_INT
:
1794 return GL_INVALID_ENUM
;
1800 case GL_UNSIGNED_BYTE
:
1802 case GL_UNSIGNED_SHORT
:
1804 case GL_UNSIGNED_INT
:
1806 case GL_UNSIGNED_BYTE_3_3_2
:
1807 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1808 case GL_UNSIGNED_SHORT_5_6_5
:
1809 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1812 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1813 /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1814 return (ctx
->API
== API_OPENGLES2
)
1815 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1816 case GL_UNSIGNED_INT_5_9_9_9_REV
:
1817 return ctx
->Extensions
.EXT_texture_shared_exponent
1818 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1819 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1820 return ctx
->Extensions
.EXT_packed_float
1821 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1823 return GL_INVALID_ENUM
;
1828 /* NOTE: no packed types are supported with BGR. That's
1829 * intentional, according to the GL spec.
1832 case GL_UNSIGNED_BYTE
:
1834 case GL_UNSIGNED_SHORT
:
1836 case GL_UNSIGNED_INT
:
1841 return GL_INVALID_ENUM
;
1848 case GL_UNSIGNED_BYTE
:
1850 case GL_UNSIGNED_SHORT
:
1852 case GL_UNSIGNED_INT
:
1854 case GL_UNSIGNED_SHORT_4_4_4_4
:
1855 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1856 case GL_UNSIGNED_SHORT_5_5_5_1
:
1857 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1858 case GL_UNSIGNED_INT_8_8_8_8
:
1859 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1860 case GL_UNSIGNED_INT_10_10_10_2
:
1861 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1865 return GL_INVALID_ENUM
;
1871 case GL_UNSIGNED_BYTE
:
1873 case GL_UNSIGNED_SHORT
:
1875 case GL_UNSIGNED_INT
:
1877 case GL_UNSIGNED_SHORT_4_4_4_4
:
1878 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1879 case GL_UNSIGNED_INT_8_8_8_8
:
1880 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1884 return GL_INVALID_ENUM
;
1888 if (!ctx
->Extensions
.MESA_ycbcr_texture
)
1889 return GL_INVALID_ENUM
;
1890 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
||
1891 type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
)
1894 return GL_INVALID_OPERATION
;
1896 case GL_DEPTH_STENCIL
:
1897 if (type
== GL_UNSIGNED_INT_24_8
)
1899 else if (ctx
->Extensions
.ARB_depth_buffer_float
&&
1900 type
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
1903 return GL_INVALID_ENUM
;
1905 /* integer-valued formats */
1906 case GL_RED_INTEGER_EXT
:
1907 case GL_GREEN_INTEGER_EXT
:
1908 case GL_BLUE_INTEGER_EXT
:
1909 case GL_ALPHA_INTEGER_EXT
:
1913 case GL_UNSIGNED_BYTE
:
1915 case GL_UNSIGNED_SHORT
:
1917 case GL_UNSIGNED_INT
:
1918 return (ctx
->Version
>= 30 ||
1919 ctx
->Extensions
.EXT_texture_integer
)
1920 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1922 return GL_INVALID_ENUM
;
1925 case GL_RGB_INTEGER_EXT
:
1928 case GL_UNSIGNED_BYTE
:
1930 case GL_UNSIGNED_SHORT
:
1932 case GL_UNSIGNED_INT
:
1933 return (ctx
->Version
>= 30 ||
1934 ctx
->Extensions
.EXT_texture_integer
)
1935 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1936 case GL_UNSIGNED_BYTE_3_3_2
:
1937 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1938 case GL_UNSIGNED_SHORT_5_6_5
:
1939 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1940 return ctx
->Extensions
.ARB_texture_rgb10_a2ui
1941 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1943 return GL_INVALID_ENUM
;
1946 case GL_BGR_INTEGER_EXT
:
1949 case GL_UNSIGNED_BYTE
:
1951 case GL_UNSIGNED_SHORT
:
1953 case GL_UNSIGNED_INT
:
1954 /* NOTE: no packed formats w/ BGR format */
1955 return (ctx
->Version
>= 30 ||
1956 ctx
->Extensions
.EXT_texture_integer
)
1957 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1959 return GL_INVALID_ENUM
;
1962 case GL_RGBA_INTEGER_EXT
:
1963 case GL_BGRA_INTEGER_EXT
:
1966 case GL_UNSIGNED_BYTE
:
1968 case GL_UNSIGNED_SHORT
:
1970 case GL_UNSIGNED_INT
:
1971 return (ctx
->Version
>= 30 ||
1972 ctx
->Extensions
.EXT_texture_integer
)
1973 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1974 case GL_UNSIGNED_SHORT_4_4_4_4
:
1975 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1976 case GL_UNSIGNED_SHORT_5_5_5_1
:
1977 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1978 case GL_UNSIGNED_INT_8_8_8_8
:
1979 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1980 case GL_UNSIGNED_INT_10_10_10_2
:
1981 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1982 return ctx
->Extensions
.ARB_texture_rgb10_a2ui
1983 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1985 return GL_INVALID_ENUM
;
1988 case GL_LUMINANCE_INTEGER_EXT
:
1989 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1992 case GL_UNSIGNED_BYTE
:
1994 case GL_UNSIGNED_SHORT
:
1996 case GL_UNSIGNED_INT
:
1997 return ctx
->Extensions
.EXT_texture_integer
1998 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2000 return GL_INVALID_ENUM
;
2004 return GL_INVALID_ENUM
;
2011 * Do error checking of format/type combinations for OpenGL ES glReadPixels
2012 * and glTex[Sub]Image.
2013 * \return error code, or GL_NO_ERROR.
2016 _mesa_es_error_check_format_and_type(GLenum format
, GLenum type
,
2017 unsigned dimensions
)
2019 GLboolean type_valid
= GL_TRUE
;
2024 case GL_LUMINANCE_ALPHA
:
2025 type_valid
= (type
== GL_UNSIGNED_BYTE
2027 || type
== GL_HALF_FLOAT_OES
);
2031 type_valid
= (type
== GL_UNSIGNED_BYTE
2032 || type
== GL_UNSIGNED_SHORT_5_6_5
2034 || type
== GL_HALF_FLOAT_OES
);
2038 type_valid
= (type
== GL_UNSIGNED_BYTE
2039 || type
== GL_UNSIGNED_SHORT_4_4_4_4
2040 || type
== GL_UNSIGNED_SHORT_5_5_5_1
2042 || type
== GL_HALF_FLOAT_OES
2043 || type
== GL_UNSIGNED_INT_2_10_10_10_REV
);
2046 case GL_DEPTH_COMPONENT
:
2047 /* This format is filtered against invalid dimensionalities elsewhere.
2049 type_valid
= (type
== GL_UNSIGNED_SHORT
2050 || type
== GL_UNSIGNED_INT
);
2053 case GL_DEPTH_STENCIL
:
2054 /* This format is filtered against invalid dimensionalities elsewhere.
2056 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
2060 type_valid
= (type
== GL_UNSIGNED_BYTE
);
2062 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
2063 * the format does not appear to be allowed for 3D textures in OpenGL
2066 if (dimensions
!= 2)
2067 return GL_INVALID_VALUE
;
2072 return GL_INVALID_VALUE
;
2075 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
2080 * Do error checking of format/type combinations for OpenGL ES 3
2082 * \return error code, or GL_NO_ERROR.
2085 _mesa_es3_error_check_format_and_type(const struct gl_context
*ctx
,
2086 GLenum format
, GLenum type
,
2087 GLenum internalFormat
)
2092 case GL_UNSIGNED_BYTE
:
2093 switch (internalFormat
) {
2098 case GL_SRGB8_ALPHA8_EXT
:
2101 return GL_INVALID_OPERATION
;
2106 if (internalFormat
!= GL_RGBA8_SNORM
)
2107 return GL_INVALID_OPERATION
;
2110 case GL_UNSIGNED_SHORT_4_4_4_4
:
2111 switch (internalFormat
) {
2116 return GL_INVALID_OPERATION
;
2120 case GL_UNSIGNED_SHORT_5_5_5_1
:
2121 switch (internalFormat
) {
2126 return GL_INVALID_OPERATION
;
2130 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2131 switch (internalFormat
) {
2132 case GL_RGBA
: /* GL_EXT_texture_type_2_10_10_10_REV */
2137 return GL_INVALID_OPERATION
;
2142 if (internalFormat
!= GL_RGBA16F
)
2143 return GL_INVALID_OPERATION
;
2147 switch (internalFormat
) {
2152 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
2155 return GL_INVALID_OPERATION
;
2159 case GL_HALF_FLOAT_OES
:
2160 if (ctx
->Extensions
.OES_texture_half_float
&& internalFormat
== format
)
2163 return GL_INVALID_OPERATION
;
2167 case GL_RGBA_INTEGER
:
2169 case GL_UNSIGNED_BYTE
:
2170 if (internalFormat
!= GL_RGBA8UI
)
2171 return GL_INVALID_OPERATION
;
2175 if (internalFormat
!= GL_RGBA8I
)
2176 return GL_INVALID_OPERATION
;
2179 case GL_UNSIGNED_SHORT
:
2180 if (internalFormat
!= GL_RGBA16UI
)
2181 return GL_INVALID_OPERATION
;
2185 if (internalFormat
!= GL_RGBA16I
)
2186 return GL_INVALID_OPERATION
;
2189 case GL_UNSIGNED_INT
:
2190 if (internalFormat
!= GL_RGBA32UI
)
2191 return GL_INVALID_OPERATION
;
2195 if (internalFormat
!= GL_RGBA32I
)
2196 return GL_INVALID_OPERATION
;
2199 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2200 if (internalFormat
!= GL_RGB10_A2UI
)
2201 return GL_INVALID_OPERATION
;
2205 return GL_INVALID_OPERATION
;
2211 case GL_UNSIGNED_BYTE
:
2212 switch (internalFormat
) {
2219 return GL_INVALID_OPERATION
;
2224 if (internalFormat
!= GL_RGB8_SNORM
)
2225 return GL_INVALID_OPERATION
;
2228 case GL_UNSIGNED_SHORT_5_6_5
:
2229 switch (internalFormat
) {
2234 return GL_INVALID_OPERATION
;
2238 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
2239 if (internalFormat
!= GL_R11F_G11F_B10F
)
2240 return GL_INVALID_OPERATION
;
2243 case GL_UNSIGNED_INT_5_9_9_9_REV
:
2244 if (internalFormat
!= GL_RGB9_E5
)
2245 return GL_INVALID_OPERATION
;
2249 switch (internalFormat
) {
2251 case GL_R11F_G11F_B10F
:
2255 return GL_INVALID_OPERATION
;
2260 switch (internalFormat
) {
2263 case GL_R11F_G11F_B10F
:
2267 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
2270 return GL_INVALID_OPERATION
;
2274 case GL_HALF_FLOAT_OES
:
2275 if (!ctx
->Extensions
.OES_texture_half_float
|| internalFormat
!= format
)
2276 return GL_INVALID_OPERATION
;
2279 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2280 switch (internalFormat
) {
2281 case GL_RGB
: /* GL_EXT_texture_type_2_10_10_10_REV */
2284 return GL_INVALID_OPERATION
;
2289 return GL_INVALID_OPERATION
;
2293 case GL_RGB_INTEGER
:
2295 case GL_UNSIGNED_BYTE
:
2296 if (internalFormat
!= GL_RGB8UI
)
2297 return GL_INVALID_OPERATION
;
2301 if (internalFormat
!= GL_RGB8I
)
2302 return GL_INVALID_OPERATION
;
2305 case GL_UNSIGNED_SHORT
:
2306 if (internalFormat
!= GL_RGB16UI
)
2307 return GL_INVALID_OPERATION
;
2311 if (internalFormat
!= GL_RGB16I
)
2312 return GL_INVALID_OPERATION
;
2315 case GL_UNSIGNED_INT
:
2316 if (internalFormat
!= GL_RGB32UI
)
2317 return GL_INVALID_OPERATION
;
2321 if (internalFormat
!= GL_RGB32I
)
2322 return GL_INVALID_OPERATION
;
2326 return GL_INVALID_OPERATION
;
2332 case GL_UNSIGNED_BYTE
:
2333 if (internalFormat
!= GL_RG8
)
2334 return GL_INVALID_OPERATION
;
2338 if (internalFormat
!= GL_RG8_SNORM
)
2339 return GL_INVALID_OPERATION
;
2343 case GL_HALF_FLOAT_OES
:
2344 switch (internalFormat
) {
2348 if (ctx
->Extensions
.ARB_texture_rg
&&
2349 ctx
->Extensions
.OES_texture_half_float
)
2353 return GL_INVALID_OPERATION
;
2358 switch (internalFormat
) {
2363 if (ctx
->Extensions
.ARB_texture_rg
&&
2364 ctx
->Extensions
.OES_texture_float
)
2368 return GL_INVALID_OPERATION
;
2373 return GL_INVALID_OPERATION
;
2379 case GL_UNSIGNED_BYTE
:
2380 if (internalFormat
!= GL_RG8UI
)
2381 return GL_INVALID_OPERATION
;
2385 if (internalFormat
!= GL_RG8I
)
2386 return GL_INVALID_OPERATION
;
2389 case GL_UNSIGNED_SHORT
:
2390 if (internalFormat
!= GL_RG16UI
)
2391 return GL_INVALID_OPERATION
;
2395 if (internalFormat
!= GL_RG16I
)
2396 return GL_INVALID_OPERATION
;
2399 case GL_UNSIGNED_INT
:
2400 if (internalFormat
!= GL_RG32UI
)
2401 return GL_INVALID_OPERATION
;
2405 if (internalFormat
!= GL_RG32I
)
2406 return GL_INVALID_OPERATION
;
2410 return GL_INVALID_OPERATION
;
2416 case GL_UNSIGNED_BYTE
:
2417 if (internalFormat
!= GL_R8
)
2418 return GL_INVALID_OPERATION
;
2422 if (internalFormat
!= GL_R8_SNORM
)
2423 return GL_INVALID_OPERATION
;
2427 case GL_HALF_FLOAT_OES
:
2428 switch (internalFormat
) {
2433 if (ctx
->Extensions
.ARB_texture_rg
&&
2434 ctx
->Extensions
.OES_texture_half_float
)
2438 return GL_INVALID_OPERATION
;
2443 switch (internalFormat
) {
2448 if (ctx
->Extensions
.ARB_texture_rg
&&
2449 ctx
->Extensions
.OES_texture_float
)
2453 return GL_INVALID_OPERATION
;
2458 return GL_INVALID_OPERATION
;
2462 case GL_RED_INTEGER
:
2464 case GL_UNSIGNED_BYTE
:
2465 if (internalFormat
!= GL_R8UI
)
2466 return GL_INVALID_OPERATION
;
2470 if (internalFormat
!= GL_R8I
)
2471 return GL_INVALID_OPERATION
;
2474 case GL_UNSIGNED_SHORT
:
2475 if (internalFormat
!= GL_R16UI
)
2476 return GL_INVALID_OPERATION
;
2480 if (internalFormat
!= GL_R16I
)
2481 return GL_INVALID_OPERATION
;
2484 case GL_UNSIGNED_INT
:
2485 if (internalFormat
!= GL_R32UI
)
2486 return GL_INVALID_OPERATION
;
2490 if (internalFormat
!= GL_R32I
)
2491 return GL_INVALID_OPERATION
;
2495 return GL_INVALID_OPERATION
;
2499 case GL_DEPTH_COMPONENT
:
2501 case GL_UNSIGNED_SHORT
:
2502 if (internalFormat
!= GL_DEPTH_COMPONENT
2503 && internalFormat
!= GL_DEPTH_COMPONENT16
)
2504 return GL_INVALID_OPERATION
;
2507 case GL_UNSIGNED_INT
:
2508 switch (internalFormat
) {
2509 case GL_DEPTH_COMPONENT
:
2510 case GL_DEPTH_COMPONENT16
:
2511 case GL_DEPTH_COMPONENT24
:
2514 return GL_INVALID_OPERATION
;
2519 if (internalFormat
!= GL_DEPTH_COMPONENT32F
)
2520 return GL_INVALID_OPERATION
;
2524 return GL_INVALID_OPERATION
;
2528 case GL_DEPTH_STENCIL
:
2530 case GL_UNSIGNED_INT_24_8
:
2531 if (internalFormat
!= GL_DEPTH_STENCIL
2532 && internalFormat
!= GL_DEPTH24_STENCIL8
)
2533 return GL_INVALID_OPERATION
;
2536 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
2537 if (internalFormat
!= GL_DEPTH32F_STENCIL8
)
2538 return GL_INVALID_OPERATION
;
2542 return GL_INVALID_OPERATION
;
2548 case GL_LUMINANCE_ALPHA
:
2551 if (ctx
->Extensions
.OES_texture_float
&& internalFormat
== format
)
2553 case GL_HALF_FLOAT_OES
:
2554 if (ctx
->Extensions
.OES_texture_half_float
&& internalFormat
== format
)
2557 if (type
!= GL_UNSIGNED_BYTE
|| format
!= internalFormat
)
2558 return GL_INVALID_OPERATION
;
2566 set_swizzle(uint8_t *swizzle
, int x
, int y
, int z
, int w
)
2568 swizzle
[MESA_FORMAT_SWIZZLE_X
] = x
;
2569 swizzle
[MESA_FORMAT_SWIZZLE_Y
] = y
;
2570 swizzle
[MESA_FORMAT_SWIZZLE_Z
] = z
;
2571 swizzle
[MESA_FORMAT_SWIZZLE_W
] = w
;
2575 get_swizzle_from_gl_format(GLenum format
, uint8_t *swizzle
)
2579 case GL_RGBA_INTEGER_EXT
:
2580 set_swizzle(swizzle
, 0, 1, 2, 3);
2583 case GL_BGRA_INTEGER_EXT
:
2584 set_swizzle(swizzle
, 2, 1, 0, 3);
2587 set_swizzle(swizzle
, 3, 2, 1, 0);
2590 case GL_RGB_INTEGER_EXT
:
2591 set_swizzle(swizzle
, 0, 1, 2, 5);
2594 case GL_BGR_INTEGER_EXT
:
2595 set_swizzle(swizzle
, 2, 1, 0, 5);
2597 case GL_LUMINANCE_ALPHA
:
2598 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
2599 set_swizzle(swizzle
, 0, 0, 0, 1);
2603 set_swizzle(swizzle
, 0, 1, 4, 5);
2606 case GL_RED_INTEGER_EXT
:
2607 set_swizzle(swizzle
, 0, 4, 4, 5);
2610 case GL_GREEN_INTEGER_EXT
:
2611 set_swizzle(swizzle
, 4, 0, 4, 5);
2614 case GL_BLUE_INTEGER_EXT
:
2615 set_swizzle(swizzle
, 4, 4, 0, 5);
2618 case GL_ALPHA_INTEGER_EXT
:
2619 set_swizzle(swizzle
, 4, 4, 4, 0);
2622 case GL_LUMINANCE_INTEGER_EXT
:
2623 set_swizzle(swizzle
, 0, 0, 0, 5);
2626 set_swizzle(swizzle
, 0, 0, 0, 0);
2634 * Take an OpenGL format (GL_RGB, GL_RGBA, etc), OpenGL data type (GL_INT,
2635 * GL_FOAT, etc) and return a matching mesa_array_format or a mesa_format
2636 * otherwise (for non-array formats).
2638 * This function will typically be used to compute a mesa format from a GL type
2639 * so we can then call _mesa_format_convert. This function does
2640 * not consider byte swapping, so it returns types assuming that no byte
2641 * swapping is involved. If byte swapping is involved then clients are supposed
2642 * to handle that on their side before calling _mesa_format_convert.
2644 * This function returns an uint32_t that can pack a mesa_format or a
2645 * mesa_array_format. Clients must check the mesa array format bit
2646 * (MESA_ARRAY_FORMAT_BIT) on the return value to know if the returned
2647 * format is a mesa_array_format or a mesa_format.
2650 _mesa_format_from_format_and_type(GLenum format
, GLenum type
)
2652 mesa_array_format array_format
;
2654 bool is_array_format
= true;
2656 bool normalized
= false, is_float
= false, is_signed
= false;
2657 int num_channels
= 0, type_size
= 0;
2659 /* Extract array format type information from the OpenGL data type */
2661 case GL_UNSIGNED_BYTE
:
2668 case GL_UNSIGNED_SHORT
:
2675 case GL_UNSIGNED_INT
:
2683 case GL_HALF_FLOAT_OES
:
2694 is_array_format
= false;
2698 /* Extract array format swizzle information from the OpenGL format */
2699 if (is_array_format
)
2700 is_array_format
= get_swizzle_from_gl_format(format
, swizzle
);
2702 /* If this is an array format type after checking data type and format,
2703 * create the array format
2705 if (is_array_format
) {
2706 normalized
= !_mesa_is_enum_format_integer(format
);
2707 num_channels
= _mesa_components_in_format(format
);
2710 MESA_ARRAY_FORMAT(type_size
, is_signed
, is_float
,
2711 normalized
, num_channels
,
2712 swizzle
[0], swizzle
[1], swizzle
[2], swizzle
[3]);
2714 if (!_mesa_little_endian())
2715 array_format
= _mesa_array_format_flip_channels(array_format
);
2717 return array_format
;
2720 /* Otherwise this is not an array format, so return the mesa_format
2721 * matching the OpenGL format and data type
2724 case GL_UNSIGNED_SHORT_5_6_5
:
2725 if (format
== GL_RGB
)
2726 return MESA_FORMAT_B5G6R5_UNORM
;
2727 else if (format
== GL_BGR
)
2728 return MESA_FORMAT_R5G6B5_UNORM
;
2730 case GL_UNSIGNED_SHORT_5_6_5_REV
:
2731 if (format
== GL_RGB
)
2732 return MESA_FORMAT_R5G6B5_UNORM
;
2733 else if (format
== GL_BGR
)
2734 return MESA_FORMAT_B5G6R5_UNORM
;
2736 case GL_UNSIGNED_SHORT_4_4_4_4
:
2737 if (format
== GL_RGBA
)
2738 return MESA_FORMAT_A4B4G4R4_UNORM
;
2739 else if (format
== GL_BGRA
)
2740 return MESA_FORMAT_A4R4G4B4_UNORM
;
2741 else if (format
== GL_ABGR_EXT
)
2742 return MESA_FORMAT_R4G4B4A4_UNORM
;
2744 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
2745 if (format
== GL_RGBA
)
2746 return MESA_FORMAT_R4G4B4A4_UNORM
;
2747 else if (format
== GL_BGRA
)
2748 return MESA_FORMAT_B4G4R4A4_UNORM
;
2749 else if (format
== GL_ABGR_EXT
)
2750 return MESA_FORMAT_A4B4G4R4_UNORM
;
2752 case GL_UNSIGNED_SHORT_5_5_5_1
:
2753 if (format
== GL_RGBA
)
2754 return MESA_FORMAT_A1B5G5R5_UNORM
;
2755 else if (format
== GL_BGRA
)
2756 return MESA_FORMAT_A1R5G5B5_UNORM
;
2758 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
2759 if (format
== GL_RGBA
)
2760 return MESA_FORMAT_R5G5B5A1_UNORM
;
2761 else if (format
== GL_BGRA
)
2762 return MESA_FORMAT_B5G5R5A1_UNORM
;
2764 case GL_UNSIGNED_BYTE_3_3_2
:
2765 if (format
== GL_RGB
)
2766 return MESA_FORMAT_B2G3R3_UNORM
;
2768 case GL_UNSIGNED_BYTE_2_3_3_REV
:
2769 if (format
== GL_RGB
)
2770 return MESA_FORMAT_R3G3B2_UNORM
;
2772 case GL_UNSIGNED_INT_5_9_9_9_REV
:
2773 if (format
== GL_RGB
)
2774 return MESA_FORMAT_R9G9B9E5_FLOAT
;
2776 case GL_UNSIGNED_INT_10_10_10_2
:
2777 if (format
== GL_RGBA
)
2778 return MESA_FORMAT_A2B10G10R10_UNORM
;
2779 else if (format
== GL_RGBA_INTEGER
)
2780 return MESA_FORMAT_A2B10G10R10_UINT
;
2781 else if (format
== GL_BGRA
)
2782 return MESA_FORMAT_A2R10G10B10_UNORM
;
2783 else if (format
== GL_BGRA_INTEGER
)
2784 return MESA_FORMAT_A2R10G10B10_UINT
;
2786 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2787 if (format
== GL_RGB
)
2788 return MESA_FORMAT_R10G10B10X2_UNORM
;
2789 if (format
== GL_RGBA
)
2790 return MESA_FORMAT_R10G10B10A2_UNORM
;
2791 else if (format
== GL_RGBA_INTEGER
)
2792 return MESA_FORMAT_R10G10B10A2_UINT
;
2793 else if (format
== GL_BGRA
)
2794 return MESA_FORMAT_B10G10R10A2_UNORM
;
2795 else if (format
== GL_BGRA_INTEGER
)
2796 return MESA_FORMAT_B10G10R10A2_UINT
;
2798 case GL_UNSIGNED_INT_8_8_8_8
:
2799 if (format
== GL_RGBA
)
2800 return MESA_FORMAT_A8B8G8R8_UNORM
;
2801 else if (format
== GL_BGRA
)
2802 return MESA_FORMAT_A8R8G8B8_UNORM
;
2803 else if (format
== GL_ABGR_EXT
)
2804 return MESA_FORMAT_R8G8B8A8_UNORM
;
2806 case GL_UNSIGNED_INT_8_8_8_8_REV
:
2807 if (format
== GL_RGBA
)
2808 return MESA_FORMAT_R8G8B8A8_UNORM
;
2809 else if (format
== GL_BGRA
)
2810 return MESA_FORMAT_B8G8R8A8_UNORM
;
2811 else if (format
== GL_ABGR_EXT
)
2812 return MESA_FORMAT_A8B8G8R8_UNORM
;
2814 case GL_UNSIGNED_SHORT_8_8_MESA
:
2815 if (format
== GL_YCBCR_MESA
)
2816 return MESA_FORMAT_YCBCR
;
2818 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
2819 if (format
== GL_YCBCR_MESA
)
2820 return MESA_FORMAT_YCBCR_REV
;
2822 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
2823 if (format
== GL_RGB
)
2824 return MESA_FORMAT_R11G11B10_FLOAT
;
2829 /* If we got here it means that we could not find a Mesa format that
2830 * matches the GL format/type provided. We may need to add a new Mesa
2831 * format in that case.
2833 unreachable("Unsupported format");