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 case GL_HALF_FLOAT_OES
:
550 return comps
* sizeof(GLhalfARB
);
552 return comps
* sizeof(GLdouble
);
554 return comps
* sizeof(GLfixed
);
555 case GL_INT_2_10_10_10_REV
:
556 case GL_UNSIGNED_INT_2_10_10_10_REV
:
558 return sizeof(GLuint
);
561 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
563 return sizeof(GLuint
);
566 case GL_UNSIGNED_INT64_ARB
:
574 * Test if the given format is unsized.
577 _mesa_is_enum_format_unsized(GLenum format
)
592 case GL_LUMINANCE_ALPHA
:
597 case GL_SLUMINANCE_ALPHA
:
604 case GL_INTENSITY_SNORM
:
605 case GL_LUMINANCE_SNORM
:
606 case GL_LUMINANCE_ALPHA_SNORM
:
609 case GL_GREEN_INTEGER
:
610 case GL_BLUE_INTEGER
:
611 case GL_ALPHA_INTEGER
:
613 case GL_RGBA_INTEGER
:
615 case GL_BGRA_INTEGER
:
617 case GL_LUMINANCE_INTEGER_EXT
:
618 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
620 case GL_DEPTH_COMPONENT
:
621 case GL_DEPTH_STENCIL
:
622 case GL_STENCIL_INDEX
:
630 * Test if the given format is a UNORM (unsigned-normalized) format.
633 _mesa_is_enum_format_unorm(GLenum format
)
652 case GL_LUMINANCE_ALPHA
:
653 case GL_SLUMINANCE_ALPHA
:
654 case GL_LUMINANCE4_ALPHA4
:
655 case GL_LUMINANCE6_ALPHA2
:
656 case GL_LUMINANCE8_ALPHA8
:
657 case GL_LUMINANCE12_ALPHA4
:
658 case GL_LUMINANCE12_ALPHA12
:
659 case GL_LUMINANCE16_ALPHA16
:
701 * Test if the given format is a SNORM (signed-normalized) format.
704 _mesa_is_enum_format_snorm(GLenum format
)
707 /* signed, normalized texture formats */
719 case GL_RGBA16_SNORM
:
721 case GL_ALPHA8_SNORM
:
722 case GL_ALPHA16_SNORM
:
723 case GL_LUMINANCE_SNORM
:
724 case GL_LUMINANCE8_SNORM
:
725 case GL_LUMINANCE16_SNORM
:
726 case GL_LUMINANCE_ALPHA_SNORM
:
727 case GL_LUMINANCE8_ALPHA8_SNORM
:
728 case GL_LUMINANCE16_ALPHA16_SNORM
:
729 case GL_INTENSITY_SNORM
:
730 case GL_INTENSITY8_SNORM
:
731 case GL_INTENSITY16_SNORM
:
739 * Test if the given format is an integer (non-normalized) format.
742 _mesa_is_enum_format_unsigned_int(GLenum format
)
745 /* specific integer formats */
746 case GL_RGBA32UI_EXT
:
750 case GL_ALPHA32UI_EXT
:
751 case GL_INTENSITY32UI_EXT
:
752 case GL_LUMINANCE32UI_EXT
:
753 case GL_LUMINANCE_ALPHA32UI_EXT
:
754 case GL_RGBA16UI_EXT
:
758 case GL_ALPHA16UI_EXT
:
759 case GL_INTENSITY16UI_EXT
:
760 case GL_LUMINANCE16UI_EXT
:
761 case GL_LUMINANCE_ALPHA16UI_EXT
:
766 case GL_ALPHA8UI_EXT
:
767 case GL_INTENSITY8UI_EXT
:
768 case GL_LUMINANCE8UI_EXT
:
769 case GL_LUMINANCE_ALPHA8UI_EXT
:
779 * Test if the given format is an integer (non-normalized) format.
782 _mesa_is_enum_format_signed_int(GLenum format
)
785 /* generic integer formats */
786 case GL_RED_INTEGER_EXT
:
787 case GL_GREEN_INTEGER_EXT
:
788 case GL_BLUE_INTEGER_EXT
:
789 case GL_ALPHA_INTEGER_EXT
:
790 case GL_RGB_INTEGER_EXT
:
791 case GL_RGBA_INTEGER_EXT
:
792 case GL_BGR_INTEGER_EXT
:
793 case GL_BGRA_INTEGER_EXT
:
794 case GL_LUMINANCE_INTEGER_EXT
:
795 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
797 /* specific integer formats */
802 case GL_ALPHA32I_EXT
:
803 case GL_INTENSITY32I_EXT
:
804 case GL_LUMINANCE32I_EXT
:
805 case GL_LUMINANCE_ALPHA32I_EXT
:
810 case GL_ALPHA16I_EXT
:
811 case GL_INTENSITY16I_EXT
:
812 case GL_LUMINANCE16I_EXT
:
813 case GL_LUMINANCE_ALPHA16I_EXT
:
819 case GL_INTENSITY8I_EXT
:
820 case GL_LUMINANCE8I_EXT
:
821 case GL_LUMINANCE_ALPHA8I_EXT
:
829 * Test if the given format is an ASTC 2D format.
832 is_astc_2d_format(GLenum internalFormat
)
834 switch (internalFormat
) {
835 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR
:
836 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR
:
837 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR
:
838 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR
:
839 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR
:
840 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR
:
841 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR
:
842 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR
:
843 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR
:
844 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR
:
845 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR
:
846 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR
:
847 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR
:
848 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR
:
849 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
:
850 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
:
851 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
:
852 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
:
853 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
:
854 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
:
855 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
:
856 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
:
857 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
:
858 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
:
859 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
:
860 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
:
861 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
:
862 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
:
870 * Test if the given format is an ASTC 3D format.
873 is_astc_3d_format(GLenum internalFormat
)
875 switch (internalFormat
) {
876 case GL_COMPRESSED_RGBA_ASTC_3x3x3_OES
:
877 case GL_COMPRESSED_RGBA_ASTC_4x3x3_OES
:
878 case GL_COMPRESSED_RGBA_ASTC_4x4x3_OES
:
879 case GL_COMPRESSED_RGBA_ASTC_4x4x4_OES
:
880 case GL_COMPRESSED_RGBA_ASTC_5x4x4_OES
:
881 case GL_COMPRESSED_RGBA_ASTC_5x5x4_OES
:
882 case GL_COMPRESSED_RGBA_ASTC_5x5x5_OES
:
883 case GL_COMPRESSED_RGBA_ASTC_6x5x5_OES
:
884 case GL_COMPRESSED_RGBA_ASTC_6x6x5_OES
:
885 case GL_COMPRESSED_RGBA_ASTC_6x6x6_OES
:
886 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_3x3x3_OES
:
887 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x3x3_OES
:
888 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x3_OES
:
889 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4x4_OES
:
890 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4x4_OES
:
891 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x4_OES
:
892 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5x5_OES
:
893 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5x5_OES
:
894 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x5_OES
:
895 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6x6_OES
:
903 * Test if the given format is an ASTC format.
906 _mesa_is_astc_format(GLenum internalFormat
)
908 return is_astc_2d_format(internalFormat
) ||
909 is_astc_3d_format(internalFormat
);
913 * Test if the given format is an ETC2 format.
916 _mesa_is_etc2_format(GLenum internalFormat
)
918 switch (internalFormat
) {
919 case GL_COMPRESSED_RGB8_ETC2
:
920 case GL_COMPRESSED_SRGB8_ETC2
:
921 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
922 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
923 case GL_COMPRESSED_R11_EAC
:
924 case GL_COMPRESSED_RG11_EAC
:
925 case GL_COMPRESSED_SIGNED_R11_EAC
:
926 case GL_COMPRESSED_SIGNED_RG11_EAC
:
927 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
928 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
936 * Test if the given format is an integer (non-normalized) format.
939 _mesa_is_enum_format_integer(GLenum format
)
941 return _mesa_is_enum_format_unsigned_int(format
) ||
942 _mesa_is_enum_format_signed_int(format
);
947 _mesa_is_type_unsigned(GLenum type
)
950 case GL_UNSIGNED_INT
:
951 case GL_UNSIGNED_INT_8_8_8_8
:
952 case GL_UNSIGNED_INT_8_8_8_8_REV
:
953 case GL_UNSIGNED_INT_10_10_10_2
:
954 case GL_UNSIGNED_INT_2_10_10_10_REV
:
956 case GL_UNSIGNED_SHORT
:
957 case GL_UNSIGNED_SHORT_4_4_4_4
:
958 case GL_UNSIGNED_SHORT_5_5_5_1
:
959 case GL_UNSIGNED_SHORT_5_6_5
:
960 case GL_UNSIGNED_SHORT_5_6_5_REV
:
961 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
962 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
963 case GL_UNSIGNED_SHORT_8_8_MESA
:
964 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
966 case GL_UNSIGNED_BYTE
:
967 case GL_UNSIGNED_BYTE_3_3_2
:
968 case GL_UNSIGNED_BYTE_2_3_3_REV
:
978 * Test if the given image format is a color/RGBA format (i.e., not color
979 * index, depth, stencil, etc).
980 * \param format the image format value (may by an internal texture format)
981 * \return GL_TRUE if its a color/RGBA format, GL_FALSE otherwise.
984 _mesa_is_color_format(GLenum format
)
1000 case GL_LUMINANCE16
:
1002 case GL_LUMINANCE_ALPHA
:
1003 case GL_LUMINANCE4_ALPHA4
:
1004 case GL_LUMINANCE6_ALPHA2
:
1005 case GL_LUMINANCE8_ALPHA8
:
1006 case GL_LUMINANCE12_ALPHA4
:
1007 case GL_LUMINANCE12_ALPHA12
:
1008 case GL_LUMINANCE16_ALPHA16
:
1012 case GL_INTENSITY12
:
1013 case GL_INTENSITY16
:
1041 /* float texture formats */
1042 case GL_ALPHA16F_ARB
:
1043 case GL_ALPHA32F_ARB
:
1044 case GL_LUMINANCE16F_ARB
:
1045 case GL_LUMINANCE32F_ARB
:
1046 case GL_LUMINANCE_ALPHA16F_ARB
:
1047 case GL_LUMINANCE_ALPHA32F_ARB
:
1048 case GL_INTENSITY16F_ARB
:
1049 case GL_INTENSITY32F_ARB
:
1056 case GL_RGBA16F_ARB
:
1057 case GL_RGBA32F_ARB
:
1058 /* compressed formats */
1059 case GL_COMPRESSED_ALPHA
:
1060 case GL_COMPRESSED_LUMINANCE
:
1061 case GL_COMPRESSED_LUMINANCE_ALPHA
:
1062 case GL_COMPRESSED_INTENSITY
:
1063 case GL_COMPRESSED_RED
:
1064 case GL_COMPRESSED_RG
:
1065 case GL_COMPRESSED_RGB
:
1066 case GL_COMPRESSED_RGBA
:
1071 case GL_COMPRESSED_RGB_S3TC_DXT1_EXT
:
1072 case GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
:
1073 case GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
:
1074 case GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
:
1075 case GL_COMPRESSED_RGB_FXT1_3DFX
:
1076 case GL_COMPRESSED_RGBA_FXT1_3DFX
:
1079 case GL_SRGB_ALPHA_EXT
:
1080 case GL_SRGB8_ALPHA8_EXT
:
1081 case GL_SLUMINANCE_ALPHA_EXT
:
1082 case GL_SLUMINANCE8_ALPHA8_EXT
:
1083 case GL_SLUMINANCE_EXT
:
1084 case GL_SLUMINANCE8_EXT
:
1085 case GL_COMPRESSED_SRGB_EXT
:
1086 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
1087 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
1088 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
1089 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
1090 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
1091 case GL_COMPRESSED_SLUMINANCE_EXT
:
1092 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
1093 case GL_COMPRESSED_RED_RGTC1
:
1094 case GL_COMPRESSED_SIGNED_RED_RGTC1
:
1095 case GL_COMPRESSED_RG_RGTC2
:
1096 case GL_COMPRESSED_SIGNED_RG_RGTC2
:
1097 case GL_COMPRESSED_LUMINANCE_LATC1_EXT
:
1098 case GL_COMPRESSED_SIGNED_LUMINANCE_LATC1_EXT
:
1099 case GL_COMPRESSED_LUMINANCE_ALPHA_LATC2_EXT
:
1100 case GL_COMPRESSED_SIGNED_LUMINANCE_ALPHA_LATC2_EXT
:
1101 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
1102 case GL_ETC1_RGB8_OES
:
1103 case GL_COMPRESSED_RGB8_ETC2
:
1104 case GL_COMPRESSED_SRGB8_ETC2
:
1105 case GL_COMPRESSED_RGBA8_ETC2_EAC
:
1106 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
1107 case GL_COMPRESSED_R11_EAC
:
1108 case GL_COMPRESSED_RG11_EAC
:
1109 case GL_COMPRESSED_SIGNED_R11_EAC
:
1110 case GL_COMPRESSED_SIGNED_RG11_EAC
:
1111 case GL_COMPRESSED_RGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1112 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1113 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
1114 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
1115 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
1116 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
1117 case GL_COMPRESSED_RGBA_ASTC_4x4_KHR
:
1118 case GL_COMPRESSED_RGBA_ASTC_5x4_KHR
:
1119 case GL_COMPRESSED_RGBA_ASTC_5x5_KHR
:
1120 case GL_COMPRESSED_RGBA_ASTC_6x5_KHR
:
1121 case GL_COMPRESSED_RGBA_ASTC_6x6_KHR
:
1122 case GL_COMPRESSED_RGBA_ASTC_8x5_KHR
:
1123 case GL_COMPRESSED_RGBA_ASTC_8x6_KHR
:
1124 case GL_COMPRESSED_RGBA_ASTC_8x8_KHR
:
1125 case GL_COMPRESSED_RGBA_ASTC_10x5_KHR
:
1126 case GL_COMPRESSED_RGBA_ASTC_10x6_KHR
:
1127 case GL_COMPRESSED_RGBA_ASTC_10x8_KHR
:
1128 case GL_COMPRESSED_RGBA_ASTC_10x10_KHR
:
1129 case GL_COMPRESSED_RGBA_ASTC_12x10_KHR
:
1130 case GL_COMPRESSED_RGBA_ASTC_12x12_KHR
:
1131 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
:
1132 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
:
1133 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
:
1134 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
:
1135 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
:
1136 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
:
1137 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
:
1138 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
:
1139 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
:
1140 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
:
1141 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
:
1142 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
:
1143 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
:
1144 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
:
1145 case GL_ATC_RGB_AMD
:
1146 case GL_ATC_RGBA_EXPLICIT_ALPHA_AMD
:
1147 case GL_ATC_RGBA_INTERPOLATED_ALPHA_AMD
:
1148 /* generic integer formats */
1149 case GL_RED_INTEGER_EXT
:
1150 case GL_GREEN_INTEGER_EXT
:
1151 case GL_BLUE_INTEGER_EXT
:
1152 case GL_ALPHA_INTEGER_EXT
:
1153 case GL_RGB_INTEGER_EXT
:
1154 case GL_RGBA_INTEGER_EXT
:
1155 case GL_BGR_INTEGER_EXT
:
1156 case GL_BGRA_INTEGER_EXT
:
1158 case GL_LUMINANCE_INTEGER_EXT
:
1159 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1160 /* sized integer formats */
1161 case GL_RGBA32UI_EXT
:
1162 case GL_RGB32UI_EXT
:
1165 case GL_ALPHA32UI_EXT
:
1166 case GL_INTENSITY32UI_EXT
:
1167 case GL_LUMINANCE32UI_EXT
:
1168 case GL_LUMINANCE_ALPHA32UI_EXT
:
1169 case GL_RGBA16UI_EXT
:
1170 case GL_RGB16UI_EXT
:
1173 case GL_ALPHA16UI_EXT
:
1174 case GL_INTENSITY16UI_EXT
:
1175 case GL_LUMINANCE16UI_EXT
:
1176 case GL_LUMINANCE_ALPHA16UI_EXT
:
1177 case GL_RGBA8UI_EXT
:
1181 case GL_ALPHA8UI_EXT
:
1182 case GL_INTENSITY8UI_EXT
:
1183 case GL_LUMINANCE8UI_EXT
:
1184 case GL_LUMINANCE_ALPHA8UI_EXT
:
1185 case GL_RGBA32I_EXT
:
1189 case GL_ALPHA32I_EXT
:
1190 case GL_INTENSITY32I_EXT
:
1191 case GL_LUMINANCE32I_EXT
:
1192 case GL_LUMINANCE_ALPHA32I_EXT
:
1193 case GL_RGBA16I_EXT
:
1197 case GL_ALPHA16I_EXT
:
1198 case GL_INTENSITY16I_EXT
:
1199 case GL_LUMINANCE16I_EXT
:
1200 case GL_LUMINANCE_ALPHA16I_EXT
:
1205 case GL_ALPHA8I_EXT
:
1206 case GL_INTENSITY8I_EXT
:
1207 case GL_LUMINANCE8I_EXT
:
1208 case GL_LUMINANCE_ALPHA8I_EXT
:
1209 /* signed, normalized texture formats */
1218 case GL_RGB16_SNORM
:
1220 case GL_RGBA8_SNORM
:
1221 case GL_RGBA16_SNORM
:
1222 case GL_ALPHA_SNORM
:
1223 case GL_ALPHA8_SNORM
:
1224 case GL_ALPHA16_SNORM
:
1225 case GL_LUMINANCE_SNORM
:
1226 case GL_LUMINANCE8_SNORM
:
1227 case GL_LUMINANCE16_SNORM
:
1228 case GL_LUMINANCE_ALPHA_SNORM
:
1229 case GL_LUMINANCE8_ALPHA8_SNORM
:
1230 case GL_LUMINANCE16_ALPHA16_SNORM
:
1231 case GL_INTENSITY_SNORM
:
1232 case GL_INTENSITY8_SNORM
:
1233 case GL_INTENSITY16_SNORM
:
1235 case GL_R11F_G11F_B10F
:
1238 case GL_YCBCR_MESA
: /* not considered to be RGB */
1247 * Test if the given image format is a depth component format.
1250 _mesa_is_depth_format(GLenum format
)
1253 case GL_DEPTH_COMPONENT
:
1254 case GL_DEPTH_COMPONENT16
:
1255 case GL_DEPTH_COMPONENT24
:
1256 case GL_DEPTH_COMPONENT32
:
1257 case GL_DEPTH_COMPONENT32F
:
1266 * Test if the given image format is a stencil format.
1269 _mesa_is_stencil_format(GLenum format
)
1272 case GL_STENCIL_INDEX
:
1281 * Test if the given image format is a YCbCr format.
1284 _mesa_is_ycbcr_format(GLenum format
)
1296 * Test if the given image format is a depth+stencil format.
1299 _mesa_is_depthstencil_format(GLenum format
)
1302 case GL_DEPTH24_STENCIL8_EXT
:
1303 case GL_DEPTH_STENCIL_EXT
:
1304 case GL_DEPTH32F_STENCIL8
:
1313 * Test if the given image format is a depth or stencil format.
1316 _mesa_is_depth_or_stencil_format(GLenum format
)
1319 case GL_DEPTH_COMPONENT
:
1320 case GL_DEPTH_COMPONENT16
:
1321 case GL_DEPTH_COMPONENT24
:
1322 case GL_DEPTH_COMPONENT32
:
1323 case GL_STENCIL_INDEX
:
1324 case GL_STENCIL_INDEX1_EXT
:
1325 case GL_STENCIL_INDEX4_EXT
:
1326 case GL_STENCIL_INDEX8_EXT
:
1327 case GL_STENCIL_INDEX16_EXT
:
1328 case GL_DEPTH_STENCIL_EXT
:
1329 case GL_DEPTH24_STENCIL8_EXT
:
1330 case GL_DEPTH_COMPONENT32F
:
1331 case GL_DEPTH32F_STENCIL8
:
1340 * Test if an image format is a supported compressed format.
1341 * \param format the internal format token provided by the user.
1342 * \return GL_TRUE if compressed, GL_FALSE if uncompressed
1345 _mesa_is_compressed_format(const struct gl_context
*ctx
, GLenum format
)
1347 mesa_format m_format
= _mesa_glenum_to_compressed_format(format
);
1349 /* Some formats in this switch have an equivalent mesa_format_layout
1350 * to the compressed formats in the layout switch below and thus
1351 * must be handled first.
1358 return _mesa_has_S3_s3tc(ctx
);
1359 case GL_COMPRESSED_LUMINANCE_ALPHA_3DC_ATI
:
1360 return _mesa_has_ATI_texture_compression_3dc(ctx
);
1361 case GL_PALETTE4_RGB8_OES
:
1362 case GL_PALETTE4_RGBA8_OES
:
1363 case GL_PALETTE4_R5_G6_B5_OES
:
1364 case GL_PALETTE4_RGBA4_OES
:
1365 case GL_PALETTE4_RGB5_A1_OES
:
1366 case GL_PALETTE8_RGB8_OES
:
1367 case GL_PALETTE8_RGBA8_OES
:
1368 case GL_PALETTE8_R5_G6_B5_OES
:
1369 case GL_PALETTE8_RGBA4_OES
:
1370 case GL_PALETTE8_RGB5_A1_OES
:
1371 return ctx
->API
== API_OPENGLES
;
1374 switch (_mesa_get_format_layout(m_format
)) {
1375 case MESA_FORMAT_LAYOUT_S3TC
:
1376 if (!_mesa_is_format_srgb(m_format
)) {
1377 return _mesa_has_EXT_texture_compression_s3tc(ctx
);
1379 return (_mesa_has_EXT_texture_sRGB(ctx
) ||
1380 _mesa_has_EXT_texture_compression_s3tc_srgb(ctx
)) &&
1381 _mesa_has_EXT_texture_compression_s3tc(ctx
);
1383 case MESA_FORMAT_LAYOUT_FXT1
:
1384 return _mesa_has_3DFX_texture_compression_FXT1(ctx
);
1385 case MESA_FORMAT_LAYOUT_RGTC
:
1386 return _mesa_has_ARB_texture_compression_rgtc(ctx
) ||
1387 _mesa_has_EXT_texture_compression_rgtc(ctx
);
1388 case MESA_FORMAT_LAYOUT_LATC
:
1389 return _mesa_has_EXT_texture_compression_latc(ctx
);
1390 case MESA_FORMAT_LAYOUT_ETC1
:
1391 return _mesa_has_OES_compressed_ETC1_RGB8_texture(ctx
);
1392 case MESA_FORMAT_LAYOUT_ETC2
:
1393 return _mesa_is_gles3(ctx
) || _mesa_has_ARB_ES3_compatibility(ctx
);
1394 case MESA_FORMAT_LAYOUT_BPTC
:
1395 return _mesa_has_ARB_texture_compression_bptc(ctx
) ||
1396 _mesa_has_EXT_texture_compression_bptc(ctx
);
1397 case MESA_FORMAT_LAYOUT_ASTC
:
1398 return _mesa_has_KHR_texture_compression_astc_ldr(ctx
);
1399 case MESA_FORMAT_LAYOUT_ATC
:
1400 return _mesa_has_AMD_compressed_ATC_texture(ctx
);
1407 * Test if the given format represents an sRGB format.
1408 * \param format the GL format (can be an internal format)
1409 * \return GL_TRUE if format is sRGB, GL_FALSE otherwise
1412 _mesa_is_srgb_format(GLenum format
)
1418 case GL_SRGB8_ALPHA8
:
1419 case GL_COMPRESSED_SRGB
:
1420 case GL_COMPRESSED_SRGB_ALPHA
:
1421 case GL_COMPRESSED_SRGB_S3TC_DXT1_EXT
:
1422 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT1_EXT
:
1423 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT3_EXT
:
1424 case GL_COMPRESSED_SRGB_ALPHA_S3TC_DXT5_EXT
:
1425 case GL_COMPRESSED_SRGB8_ETC2
:
1426 case GL_COMPRESSED_SRGB8_ALPHA8_ETC2_EAC
:
1427 case GL_COMPRESSED_SRGB8_PUNCHTHROUGH_ALPHA1_ETC2
:
1428 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
1429 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_4x4_KHR
:
1430 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x4_KHR
:
1431 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_5x5_KHR
:
1432 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x5_KHR
:
1433 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_6x6_KHR
:
1434 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x5_KHR
:
1435 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x6_KHR
:
1436 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_8x8_KHR
:
1437 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x5_KHR
:
1438 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x6_KHR
:
1439 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x8_KHR
:
1440 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_10x10_KHR
:
1441 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x10_KHR
:
1442 case GL_COMPRESSED_SRGB8_ALPHA8_ASTC_12x12_KHR
:
1452 * Convert various unpack formats to the corresponding base format.
1455 _mesa_unpack_format_to_base_format(GLenum format
)
1458 case GL_RED_INTEGER
:
1460 case GL_GREEN_INTEGER
:
1462 case GL_BLUE_INTEGER
:
1464 case GL_ALPHA_INTEGER
:
1468 case GL_RGB_INTEGER
:
1470 case GL_RGBA_INTEGER
:
1472 case GL_BGR_INTEGER
:
1474 case GL_BGRA_INTEGER
:
1476 case GL_LUMINANCE_INTEGER_EXT
:
1477 return GL_LUMINANCE
;
1478 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
1479 return GL_LUMINANCE_ALPHA
;
1490 case GL_LUMINANCE_ALPHA
:
1497 * Convert various base formats to the corresponding integer format.
1500 _mesa_base_format_to_integer_format(GLenum format
)
1504 return GL_RED_INTEGER
;
1506 return GL_GREEN_INTEGER
;
1508 return GL_BLUE_INTEGER
;
1510 return GL_RG_INTEGER
;
1512 return GL_RGB_INTEGER
;
1514 return GL_RGBA_INTEGER
;
1516 return GL_BGR_INTEGER
;
1518 return GL_BGRA_INTEGER
;
1520 return GL_ALPHA_INTEGER
;
1522 return GL_LUMINANCE_INTEGER_EXT
;
1523 case GL_LUMINANCE_ALPHA
:
1524 return GL_LUMINANCE_ALPHA_INTEGER_EXT
;
1532 * Does the given base texture/renderbuffer format have the channel
1536 _mesa_base_format_has_channel(GLenum base_format
, GLenum pname
)
1539 case GL_TEXTURE_RED_SIZE
:
1540 case GL_TEXTURE_RED_TYPE
:
1541 case GL_RENDERBUFFER_RED_SIZE_EXT
:
1542 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
1543 case GL_INTERNALFORMAT_RED_SIZE
:
1544 case GL_INTERNALFORMAT_RED_TYPE
:
1545 if (base_format
== GL_RED
||
1546 base_format
== GL_RG
||
1547 base_format
== GL_RGB
||
1548 base_format
== GL_RGBA
) {
1552 case GL_TEXTURE_GREEN_SIZE
:
1553 case GL_TEXTURE_GREEN_TYPE
:
1554 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
1555 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
1556 case GL_INTERNALFORMAT_GREEN_SIZE
:
1557 case GL_INTERNALFORMAT_GREEN_TYPE
:
1558 if (base_format
== GL_RG
||
1559 base_format
== GL_RGB
||
1560 base_format
== GL_RGBA
) {
1564 case GL_TEXTURE_BLUE_SIZE
:
1565 case GL_TEXTURE_BLUE_TYPE
:
1566 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
1567 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
1568 case GL_INTERNALFORMAT_BLUE_SIZE
:
1569 case GL_INTERNALFORMAT_BLUE_TYPE
:
1570 if (base_format
== GL_RGB
||
1571 base_format
== GL_RGBA
) {
1575 case GL_TEXTURE_ALPHA_SIZE
:
1576 case GL_TEXTURE_ALPHA_TYPE
:
1577 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
1578 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
1579 case GL_INTERNALFORMAT_ALPHA_SIZE
:
1580 case GL_INTERNALFORMAT_ALPHA_TYPE
:
1581 if (base_format
== GL_RGBA
||
1582 base_format
== GL_ALPHA
||
1583 base_format
== GL_LUMINANCE_ALPHA
) {
1587 case GL_TEXTURE_LUMINANCE_SIZE
:
1588 case GL_TEXTURE_LUMINANCE_TYPE
:
1589 if (base_format
== GL_LUMINANCE
||
1590 base_format
== GL_LUMINANCE_ALPHA
) {
1594 case GL_TEXTURE_INTENSITY_SIZE
:
1595 case GL_TEXTURE_INTENSITY_TYPE
:
1596 if (base_format
== GL_INTENSITY
) {
1600 case GL_TEXTURE_DEPTH_SIZE
:
1601 case GL_TEXTURE_DEPTH_TYPE
:
1602 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
1603 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
1604 case GL_INTERNALFORMAT_DEPTH_SIZE
:
1605 case GL_INTERNALFORMAT_DEPTH_TYPE
:
1606 if (base_format
== GL_DEPTH_STENCIL
||
1607 base_format
== GL_DEPTH_COMPONENT
) {
1611 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
1612 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
1613 case GL_INTERNALFORMAT_STENCIL_SIZE
:
1614 case GL_INTERNALFORMAT_STENCIL_TYPE
:
1615 if (base_format
== GL_DEPTH_STENCIL
||
1616 base_format
== GL_STENCIL_INDEX
) {
1621 _mesa_warning(NULL
, "%s: Unexpected channel token 0x%x\n",
1631 * If format is a generic compressed format, return the corresponding
1632 * non-compressed format. For other formats, return the format as-is.
1635 _mesa_generic_compressed_format_to_uncompressed_format(GLenum format
)
1638 case GL_COMPRESSED_RED
:
1640 case GL_COMPRESSED_RG
:
1642 case GL_COMPRESSED_RGB
:
1644 case GL_COMPRESSED_RGBA
:
1646 case GL_COMPRESSED_ALPHA
:
1648 case GL_COMPRESSED_LUMINANCE
:
1649 return GL_LUMINANCE
;
1650 case GL_COMPRESSED_LUMINANCE_ALPHA
:
1651 return GL_LUMINANCE_ALPHA
;
1652 case GL_COMPRESSED_INTENSITY
:
1653 return GL_INTENSITY
;
1655 case GL_COMPRESSED_SRGB
:
1657 case GL_COMPRESSED_SRGB_ALPHA
:
1658 return GL_SRGB_ALPHA
;
1659 case GL_COMPRESSED_SLUMINANCE
:
1660 return GL_SLUMINANCE
;
1661 case GL_COMPRESSED_SLUMINANCE_ALPHA
:
1662 return GL_SLUMINANCE_ALPHA
;
1670 * Return the equivalent non-generic internal format.
1671 * This is useful for comparing whether two internal formats are equivalent.
1674 _mesa_get_nongeneric_internalformat(GLenum format
)
1677 /* GL 1.1 formats. */
1685 case GL_LUMINANCE_ALPHA
:
1686 return GL_LUMINANCE8_ALPHA8
;
1689 return GL_LUMINANCE8
;
1693 return GL_INTENSITY8
;
1695 /* GL_ARB_texture_rg */
1701 /* GL_EXT_texture_sRGB */
1705 return GL_SRGB8_ALPHA8
;
1707 return GL_SLUMINANCE8
;
1708 case GL_SLUMINANCE_ALPHA
:
1709 return GL_SLUMINANCE8_ALPHA8
;
1711 /* GL_EXT_texture_snorm */
1713 return GL_RGBA8_SNORM
;
1715 return GL_RGB8_SNORM
;
1717 return GL_RG8_SNORM
;
1720 case GL_LUMINANCE_ALPHA_SNORM
:
1721 return GL_LUMINANCE8_ALPHA8_SNORM
;
1722 case GL_LUMINANCE_SNORM
:
1723 return GL_LUMINANCE8_SNORM
;
1724 case GL_ALPHA_SNORM
:
1725 return GL_ALPHA8_SNORM
;
1726 case GL_INTENSITY_SNORM
:
1727 return GL_INTENSITY8_SNORM
;
1736 * Convert an sRGB internal format to linear.
1739 _mesa_get_linear_internalformat(GLenum format
)
1748 case GL_SRGB8_ALPHA8
:
1750 case GL_SLUMINANCE8
:
1751 return GL_LUMINANCE8
;
1753 return GL_LUMINANCE
;
1754 case GL_SLUMINANCE_ALPHA
:
1755 return GL_LUMINANCE_ALPHA
;
1756 case GL_SLUMINANCE8_ALPHA8
:
1757 return GL_LUMINANCE8_ALPHA8
;
1765 * Do error checking of format/type combinations for glReadPixels,
1766 * glDrawPixels and glTex[Sub]Image. Note that depending on the format
1767 * and type values, we may either generate GL_INVALID_OPERATION or
1770 * \param format pixel format.
1771 * \param type pixel type.
1773 * \return GL_INVALID_ENUM, GL_INVALID_OPERATION or GL_NO_ERROR
1776 _mesa_error_check_format_and_type(const struct gl_context
*ctx
,
1777 GLenum format
, GLenum type
)
1779 /* From OpenGL 3.3 spec, page 220:
1780 * "If the format is DEPTH_STENCIL, then values are taken from
1781 * both the depth buffer and the stencil buffer. If there is no
1782 * depth buffer or if there is no stencil buffer, then the error
1783 * INVALID_OPERATION occurs. If the type parameter is not
1784 * UNSIGNED_INT_24_8 or FLOAT_32_UNSIGNED_INT_24_8_REV, then the
1785 * error INVALID_ENUM occurs."
1787 * OpenGL ES still generates GL_INVALID_OPERATION because glReadPixels
1788 * cannot be used to read depth or stencil in that API.
1790 if (_mesa_is_desktop_gl(ctx
) && format
== GL_DEPTH_STENCIL
1791 && type
!= GL_UNSIGNED_INT_24_8
1792 && type
!= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
1793 return GL_INVALID_ENUM
;
1795 /* special type-based checks (see glReadPixels, glDrawPixels error lists) */
1798 if (format
!= GL_COLOR_INDEX
&& format
!= GL_STENCIL_INDEX
) {
1799 return GL_INVALID_ENUM
;
1803 case GL_UNSIGNED_BYTE_3_3_2
:
1804 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1805 case GL_UNSIGNED_SHORT_5_6_5
:
1806 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1807 if (format
== GL_RGB
) {
1810 if (format
== GL_RGB_INTEGER_EXT
&&
1811 _mesa_has_texture_rgb10_a2ui(ctx
)) {
1814 return GL_INVALID_OPERATION
;
1816 case GL_UNSIGNED_SHORT_4_4_4_4
:
1817 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
1818 case GL_UNSIGNED_INT_8_8_8_8
:
1819 case GL_UNSIGNED_INT_8_8_8_8_REV
:
1820 if (format
== GL_RGBA
||
1821 format
== GL_BGRA
||
1822 format
== GL_ABGR_EXT
) {
1825 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1826 _mesa_has_texture_rgb10_a2ui(ctx
)) {
1829 return GL_INVALID_OPERATION
;
1831 case GL_UNSIGNED_SHORT_5_5_5_1
:
1832 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
1833 case GL_UNSIGNED_INT_10_10_10_2
:
1834 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1835 if (format
== GL_RGBA
||
1836 format
== GL_BGRA
) {
1839 if ((format
== GL_RGBA_INTEGER_EXT
|| format
== GL_BGRA_INTEGER_EXT
) &&
1840 _mesa_has_texture_rgb10_a2ui(ctx
)) {
1843 if (type
== GL_UNSIGNED_INT_2_10_10_10_REV
&& format
== GL_RGB
&&
1844 ctx
->API
== API_OPENGLES2
) {
1845 break; /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1847 return GL_INVALID_OPERATION
;
1849 case GL_UNSIGNED_INT_24_8
:
1850 /* Depth buffer OK to read in OpenGL ES (NV_read_depth). */
1851 if (ctx
->API
== API_OPENGLES2
&& format
== GL_DEPTH_COMPONENT
)
1854 if (format
!= GL_DEPTH_STENCIL
) {
1855 return GL_INVALID_OPERATION
;
1859 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
1860 if (!_mesa_has_float_depth_buffer(ctx
)) {
1861 return GL_INVALID_ENUM
;
1863 if (format
!= GL_DEPTH_STENCIL
) {
1864 return GL_INVALID_OPERATION
;
1868 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1869 if (!_mesa_has_packed_float(ctx
)) {
1870 return GL_INVALID_ENUM
;
1872 if (format
!= GL_RGB
) {
1873 return GL_INVALID_OPERATION
;
1877 case GL_HALF_FLOAT_OES
:
1881 case GL_LUMINANCE_ALPHA
:
1887 if (_mesa_has_rg_textures(ctx
))
1890 return GL_INVALID_OPERATION
;
1894 ; /* fall-through */
1897 /* now, for each format, check the type for compatibility */
1899 case GL_COLOR_INDEX
:
1900 case GL_STENCIL_INDEX
:
1904 case GL_UNSIGNED_BYTE
:
1906 case GL_UNSIGNED_SHORT
:
1908 case GL_UNSIGNED_INT
:
1913 return GL_INVALID_ENUM
;
1920 #if 0 /* not legal! see table 3.6 of the 1.5 spec */
1924 case GL_LUMINANCE_ALPHA
:
1925 case GL_DEPTH_COMPONENT
:
1928 case GL_UNSIGNED_BYTE
:
1930 case GL_UNSIGNED_SHORT
:
1932 case GL_UNSIGNED_INT
:
1937 return GL_INVALID_ENUM
;
1941 if (!_mesa_has_rg_textures(ctx
))
1942 return GL_INVALID_ENUM
;
1945 case GL_UNSIGNED_BYTE
:
1947 case GL_UNSIGNED_SHORT
:
1949 case GL_UNSIGNED_INT
:
1954 return GL_INVALID_ENUM
;
1960 case GL_UNSIGNED_BYTE
:
1962 case GL_UNSIGNED_SHORT
:
1964 case GL_UNSIGNED_INT
:
1966 case GL_UNSIGNED_BYTE_3_3_2
:
1967 case GL_UNSIGNED_BYTE_2_3_3_REV
:
1968 case GL_UNSIGNED_SHORT_5_6_5
:
1969 case GL_UNSIGNED_SHORT_5_6_5_REV
:
1972 case GL_UNSIGNED_INT_2_10_10_10_REV
:
1973 /* OK by GL_EXT_texture_type_2_10_10_10_REV */
1974 return (ctx
->API
== API_OPENGLES2
)
1975 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1976 case GL_UNSIGNED_INT_5_9_9_9_REV
:
1977 return _mesa_has_texture_shared_exponent(ctx
)
1978 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1979 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
1980 return _mesa_has_packed_float(ctx
)
1981 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
1983 return GL_INVALID_ENUM
;
1988 /* NOTE: no packed types are supported with BGR. That's
1989 * intentional, according to the GL spec.
1992 case GL_UNSIGNED_BYTE
:
1994 case GL_UNSIGNED_SHORT
:
1996 case GL_UNSIGNED_INT
:
2001 return GL_INVALID_ENUM
;
2008 case GL_UNSIGNED_BYTE
:
2010 case GL_UNSIGNED_SHORT
:
2012 case GL_UNSIGNED_INT
:
2014 case GL_UNSIGNED_SHORT_4_4_4_4
:
2015 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
2016 case GL_UNSIGNED_SHORT_5_5_5_1
:
2017 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
2018 case GL_UNSIGNED_INT_8_8_8_8
:
2019 case GL_UNSIGNED_INT_8_8_8_8_REV
:
2020 case GL_UNSIGNED_INT_10_10_10_2
:
2021 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2025 return GL_INVALID_ENUM
;
2031 case GL_UNSIGNED_BYTE
:
2033 case GL_UNSIGNED_SHORT
:
2035 case GL_UNSIGNED_INT
:
2037 case GL_UNSIGNED_SHORT_4_4_4_4
:
2038 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
2039 case GL_UNSIGNED_INT_8_8_8_8
:
2040 case GL_UNSIGNED_INT_8_8_8_8_REV
:
2044 return GL_INVALID_ENUM
;
2048 if (!_mesa_has_MESA_ycbcr_texture(ctx
))
2049 return GL_INVALID_ENUM
;
2050 if (type
== GL_UNSIGNED_SHORT_8_8_MESA
||
2051 type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
)
2054 return GL_INVALID_OPERATION
;
2056 case GL_DEPTH_STENCIL
:
2057 if (type
== GL_UNSIGNED_INT_24_8
)
2059 else if (_mesa_has_float_depth_buffer(ctx
) &&
2060 type
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
)
2063 return GL_INVALID_ENUM
;
2065 /* integer-valued formats */
2066 case GL_RED_INTEGER_EXT
:
2067 case GL_GREEN_INTEGER_EXT
:
2068 case GL_BLUE_INTEGER_EXT
:
2069 case GL_ALPHA_INTEGER_EXT
:
2073 case GL_UNSIGNED_BYTE
:
2075 case GL_UNSIGNED_SHORT
:
2077 case GL_UNSIGNED_INT
:
2078 return _mesa_has_integer_textures(ctx
)
2079 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2081 return GL_INVALID_ENUM
;
2084 case GL_RGB_INTEGER_EXT
:
2087 case GL_UNSIGNED_BYTE
:
2089 case GL_UNSIGNED_SHORT
:
2091 case GL_UNSIGNED_INT
:
2092 return _mesa_has_integer_textures(ctx
)
2093 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2094 case GL_UNSIGNED_BYTE_3_3_2
:
2095 case GL_UNSIGNED_BYTE_2_3_3_REV
:
2096 case GL_UNSIGNED_SHORT_5_6_5
:
2097 case GL_UNSIGNED_SHORT_5_6_5_REV
:
2098 return _mesa_has_texture_rgb10_a2ui(ctx
)
2099 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2101 return GL_INVALID_ENUM
;
2104 case GL_BGR_INTEGER_EXT
:
2107 case GL_UNSIGNED_BYTE
:
2109 case GL_UNSIGNED_SHORT
:
2111 case GL_UNSIGNED_INT
:
2112 /* NOTE: no packed formats w/ BGR format */
2113 return _mesa_has_integer_textures(ctx
)
2114 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2116 return GL_INVALID_ENUM
;
2119 case GL_RGBA_INTEGER_EXT
:
2120 case GL_BGRA_INTEGER_EXT
:
2123 case GL_UNSIGNED_BYTE
:
2125 case GL_UNSIGNED_SHORT
:
2127 case GL_UNSIGNED_INT
:
2128 return _mesa_has_integer_textures(ctx
)
2129 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2130 case GL_UNSIGNED_SHORT_4_4_4_4
:
2131 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
2132 case GL_UNSIGNED_SHORT_5_5_5_1
:
2133 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
2134 case GL_UNSIGNED_INT_8_8_8_8
:
2135 case GL_UNSIGNED_INT_8_8_8_8_REV
:
2136 case GL_UNSIGNED_INT_10_10_10_2
:
2137 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2138 return _mesa_has_texture_rgb10_a2ui(ctx
)
2139 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2141 return GL_INVALID_ENUM
;
2144 case GL_LUMINANCE_INTEGER_EXT
:
2145 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
2148 case GL_UNSIGNED_BYTE
:
2150 case GL_UNSIGNED_SHORT
:
2152 case GL_UNSIGNED_INT
:
2153 return _mesa_has_integer_textures(ctx
)
2154 ? GL_NO_ERROR
: GL_INVALID_ENUM
;
2156 return GL_INVALID_ENUM
;
2160 return GL_INVALID_ENUM
;
2167 * Do error checking of format/type combinations for OpenGL ES glReadPixels
2168 * and glTex[Sub]Image.
2169 * \return error code, or GL_NO_ERROR.
2172 _mesa_es_error_check_format_and_type(const struct gl_context
*ctx
,
2173 GLenum format
, GLenum type
,
2174 unsigned dimensions
)
2176 GLboolean type_valid
= GL_TRUE
;
2181 if (!_mesa_has_rg_textures(ctx
))
2182 return GL_INVALID_VALUE
;
2186 case GL_LUMINANCE_ALPHA
:
2187 type_valid
= (type
== GL_UNSIGNED_BYTE
2189 || type
== GL_HALF_FLOAT_OES
);
2193 type_valid
= (type
== GL_UNSIGNED_BYTE
2194 || type
== GL_UNSIGNED_SHORT_5_6_5
2196 || type
== GL_HALF_FLOAT_OES
);
2200 type_valid
= (type
== GL_UNSIGNED_BYTE
2201 || type
== GL_UNSIGNED_SHORT_4_4_4_4
2202 || type
== GL_UNSIGNED_SHORT_5_5_5_1
2204 || type
== GL_HALF_FLOAT_OES
2205 || (_mesa_has_texture_type_2_10_10_10_REV(ctx
) &&
2206 type
== GL_UNSIGNED_INT_2_10_10_10_REV
));
2209 case GL_DEPTH_COMPONENT
:
2210 /* This format is filtered against invalid dimensionalities elsewhere.
2212 type_valid
= (type
== GL_UNSIGNED_SHORT
2213 || type
== GL_UNSIGNED_INT
);
2216 case GL_DEPTH_STENCIL
:
2217 /* This format is filtered against invalid dimensionalities elsewhere.
2219 type_valid
= (type
== GL_UNSIGNED_INT_24_8
);
2223 type_valid
= (type
== GL_UNSIGNED_BYTE
);
2225 /* This feels like a bug in the EXT_texture_format_BGRA8888 spec, but
2226 * the format does not appear to be allowed for 3D textures in OpenGL
2229 if (dimensions
!= 2)
2230 return GL_INVALID_VALUE
;
2235 return GL_INVALID_VALUE
;
2238 return type_valid
? GL_NO_ERROR
: GL_INVALID_OPERATION
;
2242 * Return the simple base format for a given internal texture format.
2243 * For example, given GL_LUMINANCE12_ALPHA4, return GL_LUMINANCE_ALPHA.
2245 * \param ctx GL context.
2246 * \param internalFormat the internal texture format token or 1, 2, 3, or 4.
2248 * \return the corresponding \u base internal format (GL_ALPHA, GL_LUMINANCE,
2249 * GL_LUMANCE_ALPHA, GL_INTENSITY, GL_RGB, or GL_RGBA), or -1 if invalid enum.
2251 * This is the format which is used during texture application (i.e. the
2252 * texture format and env mode determine the arithmetic used.
2255 _mesa_base_tex_format(const struct gl_context
*ctx
, GLint internalFormat
)
2257 switch (internalFormat
) {
2263 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_ALPHA
: -1;
2268 case GL_LUMINANCE12
:
2269 case GL_LUMINANCE16
:
2270 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE
: -1;
2272 case GL_LUMINANCE_ALPHA
:
2273 case GL_LUMINANCE4_ALPHA4
:
2274 case GL_LUMINANCE6_ALPHA2
:
2275 case GL_LUMINANCE8_ALPHA8
:
2276 case GL_LUMINANCE12_ALPHA4
:
2277 case GL_LUMINANCE12_ALPHA12
:
2278 case GL_LUMINANCE16_ALPHA16
:
2279 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_LUMINANCE_ALPHA
: -1;
2283 case GL_INTENSITY12
:
2284 case GL_INTENSITY16
:
2285 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_INTENSITY
: -1;
2287 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGB
: -1;
2298 return (ctx
->API
!= API_OPENGL_CORE
) ? GL_RGBA
: -1;
2312 /* GL_BGRA can be an internal format *only* in OpenGL ES (1.x or 2.0).
2314 if (_mesa_is_gles(ctx
)) {
2315 switch (internalFormat
) {
2323 if (_mesa_has_ARB_ES2_compatibility(ctx
) ||
2324 _mesa_has_OES_framebuffer_object(ctx
) ||
2325 ctx
->API
== API_OPENGLES2
) {
2326 switch (internalFormat
) {
2334 if (_mesa_has_ARB_depth_texture(ctx
) || _mesa_has_OES_depth_texture(ctx
) ||
2335 ctx
->API
== API_OPENGL_CORE
) {
2336 switch (internalFormat
) {
2337 case GL_DEPTH_COMPONENT
:
2338 case GL_DEPTH_COMPONENT16
:
2339 case GL_DEPTH_COMPONENT24
:
2340 case GL_DEPTH_COMPONENT32
:
2341 return GL_DEPTH_COMPONENT
;
2342 case GL_DEPTH_STENCIL
:
2343 case GL_DEPTH24_STENCIL8
:
2344 return GL_DEPTH_STENCIL
;
2350 if (_mesa_has_ARB_texture_stencil8(ctx
) ||
2351 _mesa_has_OES_texture_stencil8(ctx
)) {
2352 switch (internalFormat
) {
2353 case GL_STENCIL_INDEX
:
2354 case GL_STENCIL_INDEX1
:
2355 case GL_STENCIL_INDEX4
:
2356 case GL_STENCIL_INDEX8
:
2357 case GL_STENCIL_INDEX16
:
2358 return GL_STENCIL_INDEX
;
2364 switch (internalFormat
) {
2365 case GL_COMPRESSED_ALPHA
:
2367 case GL_COMPRESSED_LUMINANCE
:
2368 return GL_LUMINANCE
;
2369 case GL_COMPRESSED_LUMINANCE_ALPHA
:
2370 return GL_LUMINANCE_ALPHA
;
2371 case GL_COMPRESSED_INTENSITY
:
2372 return GL_INTENSITY
;
2373 case GL_COMPRESSED_RGB
:
2375 case GL_COMPRESSED_RGBA
:
2381 if (_mesa_is_compressed_format(ctx
, internalFormat
)) {
2382 GLenum base_compressed
=
2383 _mesa_gl_compressed_format_base_format(internalFormat
);
2384 if (base_compressed
)
2385 return base_compressed
;
2388 if ((_mesa_has_KHR_texture_compression_astc_ldr(ctx
) &&
2389 is_astc_2d_format(internalFormat
)) ||
2390 (_mesa_has_OES_texture_compression_astc(ctx
) &&
2391 is_astc_3d_format(internalFormat
)))
2394 if (!_mesa_has_MESA_ycbcr_texture(ctx
)) {
2395 if (internalFormat
== GL_YCBCR_MESA
)
2396 return GL_YCBCR_MESA
;
2399 if (_mesa_has_half_float_textures(ctx
)) {
2400 switch (internalFormat
) {
2401 case GL_ALPHA16F_ARB
:
2403 case GL_RGBA16F_ARB
:
2407 case GL_INTENSITY16F_ARB
:
2408 return GL_INTENSITY
;
2409 case GL_LUMINANCE16F_ARB
:
2410 return GL_LUMINANCE
;
2411 case GL_LUMINANCE_ALPHA16F_ARB
:
2412 return GL_LUMINANCE_ALPHA
;
2416 if (_mesa_has_float_textures(ctx
)) {
2417 switch (internalFormat
) {
2418 case GL_ALPHA32F_ARB
:
2420 case GL_RGBA32F_ARB
:
2424 case GL_INTENSITY32F_ARB
:
2425 return GL_INTENSITY
;
2426 case GL_LUMINANCE32F_ARB
:
2427 return GL_LUMINANCE
;
2428 case GL_LUMINANCE_ALPHA32F_ARB
:
2429 return GL_LUMINANCE_ALPHA
;
2433 if (_mesa_has_EXT_texture_snorm(ctx
) || _mesa_is_gles3(ctx
)) {
2434 switch (internalFormat
) {
2445 case GL_RGB16_SNORM
:
2448 case GL_RGBA8_SNORM
:
2449 case GL_RGBA16_SNORM
:
2451 case GL_ALPHA_SNORM
:
2452 case GL_ALPHA8_SNORM
:
2453 case GL_ALPHA16_SNORM
:
2455 case GL_LUMINANCE_SNORM
:
2456 case GL_LUMINANCE8_SNORM
:
2457 case GL_LUMINANCE16_SNORM
:
2458 return GL_LUMINANCE
;
2459 case GL_LUMINANCE_ALPHA_SNORM
:
2460 case GL_LUMINANCE8_ALPHA8_SNORM
:
2461 case GL_LUMINANCE16_ALPHA16_SNORM
:
2462 return GL_LUMINANCE_ALPHA
;
2463 case GL_INTENSITY_SNORM
:
2464 case GL_INTENSITY8_SNORM
:
2465 case GL_INTENSITY16_SNORM
:
2466 return GL_INTENSITY
;
2472 if (_mesa_has_EXT_texture_sRGB(ctx
) || _mesa_is_gles3(ctx
)) {
2473 switch (internalFormat
) {
2476 case GL_COMPRESSED_SRGB_EXT
:
2478 case GL_SRGB_ALPHA_EXT
:
2479 case GL_SRGB8_ALPHA8_EXT
:
2480 case GL_COMPRESSED_SRGB_ALPHA_EXT
:
2482 case GL_SLUMINANCE_ALPHA_EXT
:
2483 case GL_SLUMINANCE8_ALPHA8_EXT
:
2484 case GL_COMPRESSED_SLUMINANCE_ALPHA_EXT
:
2485 return GL_LUMINANCE_ALPHA
;
2486 case GL_SLUMINANCE_EXT
:
2487 case GL_SLUMINANCE8_EXT
:
2488 case GL_COMPRESSED_SLUMINANCE_EXT
:
2489 return GL_LUMINANCE
;
2495 if (_mesa_has_EXT_texture_sRGB_R8(ctx
)) {
2496 switch (internalFormat
) {
2504 if (_mesa_has_integer_textures(ctx
)) {
2505 switch (internalFormat
) {
2506 case GL_RGBA8UI_EXT
:
2507 case GL_RGBA16UI_EXT
:
2508 case GL_RGBA32UI_EXT
:
2510 case GL_RGBA16I_EXT
:
2511 case GL_RGBA32I_EXT
:
2514 case GL_RGB16UI_EXT
:
2515 case GL_RGB32UI_EXT
:
2523 if (_mesa_has_texture_rgb10_a2ui(ctx
)) {
2524 switch (internalFormat
) {
2530 if (_mesa_has_integer_textures(ctx
)) {
2531 switch (internalFormat
) {
2532 case GL_ALPHA8UI_EXT
:
2533 case GL_ALPHA16UI_EXT
:
2534 case GL_ALPHA32UI_EXT
:
2535 case GL_ALPHA8I_EXT
:
2536 case GL_ALPHA16I_EXT
:
2537 case GL_ALPHA32I_EXT
:
2539 case GL_INTENSITY8UI_EXT
:
2540 case GL_INTENSITY16UI_EXT
:
2541 case GL_INTENSITY32UI_EXT
:
2542 case GL_INTENSITY8I_EXT
:
2543 case GL_INTENSITY16I_EXT
:
2544 case GL_INTENSITY32I_EXT
:
2545 return GL_INTENSITY
;
2546 case GL_LUMINANCE8UI_EXT
:
2547 case GL_LUMINANCE16UI_EXT
:
2548 case GL_LUMINANCE32UI_EXT
:
2549 case GL_LUMINANCE8I_EXT
:
2550 case GL_LUMINANCE16I_EXT
:
2551 case GL_LUMINANCE32I_EXT
:
2552 return GL_LUMINANCE
;
2553 case GL_LUMINANCE_ALPHA8UI_EXT
:
2554 case GL_LUMINANCE_ALPHA16UI_EXT
:
2555 case GL_LUMINANCE_ALPHA32UI_EXT
:
2556 case GL_LUMINANCE_ALPHA8I_EXT
:
2557 case GL_LUMINANCE_ALPHA16I_EXT
:
2558 case GL_LUMINANCE_ALPHA32I_EXT
:
2559 return GL_LUMINANCE_ALPHA
;
2565 if (_mesa_has_rg_textures(ctx
)) {
2566 switch (internalFormat
) {
2568 if (!_mesa_has_half_float_textures(ctx
))
2572 if (!_mesa_has_float_textures(ctx
))
2581 if (!_mesa_has_integer_textures(ctx
))
2587 case GL_COMPRESSED_RED
:
2591 if (!_mesa_has_half_float_textures(ctx
))
2595 if (!_mesa_has_float_textures(ctx
))
2604 if (!_mesa_has_integer_textures(ctx
))
2610 case GL_COMPRESSED_RG
:
2617 if (_mesa_has_texture_shared_exponent(ctx
)) {
2618 switch (internalFormat
) {
2619 case GL_RGB9_E5_EXT
:
2626 if (_mesa_has_packed_float(ctx
)) {
2627 switch (internalFormat
) {
2628 case GL_R11F_G11F_B10F_EXT
:
2635 if (_mesa_has_float_depth_buffer(ctx
)) {
2636 switch (internalFormat
) {
2637 case GL_DEPTH_COMPONENT32F
:
2638 return GL_DEPTH_COMPONENT
;
2639 case GL_DEPTH32F_STENCIL8
:
2640 return GL_DEPTH_STENCIL
;
2646 return -1; /* error */
2650 * Returns the effective internal format from a texture format and type.
2651 * This is used by texture image operations internally for validation, when
2652 * the specified internal format is a base (unsized) format.
2654 * This method will only return a valid effective internal format if the
2655 * combination of format, type and internal format in base form, is acceptable.
2657 * If a single sized internal format is defined in the spec (OpenGL-ES 3.0.4) or
2658 * in extensions, to unambiguously correspond to the given base format, then
2659 * that internal format is returned as the effective. Otherwise, if the
2660 * combination is accepted but a single effective format is not defined, the
2661 * passed base format will be returned instead.
2663 * \param format the texture format
2664 * \param type the texture type
2667 gles_effective_internal_format_for_format_and_type(GLenum format
,
2671 case GL_UNSIGNED_BYTE
:
2681 /* Although LUMINANCE_ALPHA, LUMINANCE and ALPHA appear in table 3.12,
2682 * (section 3.8 Texturing, page 128 of the OpenGL-ES 3.0.4) as effective
2683 * internal formats, they do not correspond to GL constants, so the base
2684 * format is returned instead.
2687 case GL_LUMINANCE_ALPHA
:
2694 case GL_UNSIGNED_SHORT_4_4_4_4
:
2695 if (format
== GL_RGBA
)
2699 case GL_UNSIGNED_SHORT_5_5_5_1
:
2700 if (format
== GL_RGBA
)
2704 case GL_UNSIGNED_SHORT_5_6_5
:
2705 if (format
== GL_RGB
)
2709 /* OES_packed_depth_stencil */
2710 case GL_UNSIGNED_INT_24_8
:
2711 if (format
== GL_DEPTH_STENCIL
)
2712 return GL_DEPTH24_STENCIL8
;
2715 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
2716 if (format
== GL_DEPTH_STENCIL
)
2717 return GL_DEPTH32F_STENCIL8
;
2720 case GL_UNSIGNED_SHORT
:
2721 if (format
== GL_DEPTH_COMPONENT
)
2722 return GL_DEPTH_COMPONENT16
;
2725 case GL_UNSIGNED_INT
:
2726 /* It can be DEPTH_COMPONENT16 or DEPTH_COMPONENT24, so just return
2729 if (format
== GL_DEPTH_COMPONENT
)
2733 /* OES_texture_float and OES_texture_half_float */
2735 if (format
== GL_DEPTH_COMPONENT
)
2736 return GL_DEPTH_COMPONENT32F
;
2738 case GL_HALF_FLOAT_OES
:
2742 case GL_LUMINANCE_ALPHA
:
2758 /* GL_EXT_texture_type_2_10_10_10_REV */
2759 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2768 /* fall through and return NONE */
2776 * Do error checking of format/type combinations for OpenGL ES 3
2777 * glTex[Sub]Image, or ES1/ES2 with GL_OES_required_internalformat.
2778 * \return error code, or GL_NO_ERROR.
2781 _mesa_gles_error_check_format_and_type(const struct gl_context
*ctx
,
2782 GLenum format
, GLenum type
,
2783 GLenum internalFormat
)
2785 /* If internalFormat is an unsized format, then the effective internal
2786 * format derived from format and type should be used instead. Page 127,
2787 * section "3.8 Texturing" of the GLES 3.0.4 spec states:
2789 * "if internalformat is a base internal format, the effective
2790 * internal format is a sized internal format that is derived
2791 * from the format and type for internal use by the GL.
2792 * Table 3.12 specifies the mapping of format and type to effective
2793 * internal formats. The effective internal format is used by the GL
2794 * for purposes such as texture completeness or type checks for
2795 * CopyTex* commands. In these cases, the GL is required to operate
2796 * as if the effective internal format was used as the internalformat
2797 * when specifying the texture data."
2799 if (_mesa_is_enum_format_unsized(internalFormat
)) {
2800 GLenum effectiveInternalFormat
=
2801 gles_effective_internal_format_for_format_and_type(format
, type
);
2803 if (effectiveInternalFormat
== GL_NONE
)
2804 return GL_INVALID_OPERATION
;
2806 GLenum baseInternalFormat
;
2807 if (internalFormat
== GL_BGRA_EXT
) {
2808 /* Unfortunately, _mesa_base_tex_format returns a base format of
2809 * GL_RGBA for GL_BGRA_EXT. This makes perfect sense if you're
2810 * asking the question, "what channels does this format have?"
2811 * However, if we're trying to determine if two internal formats
2812 * match in the ES3 sense, we actually want GL_BGRA.
2814 baseInternalFormat
= GL_BGRA_EXT
;
2816 baseInternalFormat
=
2817 _mesa_base_tex_format(ctx
, effectiveInternalFormat
);
2820 if (internalFormat
!= baseInternalFormat
)
2821 return GL_INVALID_OPERATION
;
2823 internalFormat
= effectiveInternalFormat
;
2826 /* The GLES variant of EXT_texture_compression_s3tc is very vague and
2827 * doesn't list valid types. Just do exactly what the spec says.
2829 if (_mesa_has_EXT_texture_compression_s3tc(ctx
) &&
2830 (internalFormat
== GL_COMPRESSED_RGB_S3TC_DXT1_EXT
||
2831 internalFormat
== GL_COMPRESSED_RGBA_S3TC_DXT1_EXT
||
2832 internalFormat
== GL_COMPRESSED_RGBA_S3TC_DXT3_EXT
||
2833 internalFormat
== GL_COMPRESSED_RGBA_S3TC_DXT5_EXT
))
2834 return format
== GL_RGB
|| format
== GL_RGBA
? GL_NO_ERROR
:
2835 GL_INVALID_OPERATION
;
2839 if (type
!= GL_UNSIGNED_BYTE
|| internalFormat
!= GL_BGRA
)
2840 return GL_INVALID_OPERATION
;
2845 case GL_UNSIGNED_BYTE
:
2846 switch (internalFormat
) {
2852 case GL_SRGB8_ALPHA8_EXT
:
2853 if (ctx
->Version
<= 20)
2854 return GL_INVALID_OPERATION
;
2856 case GL_COMPRESSED_RGBA_BPTC_UNORM
:
2857 case GL_COMPRESSED_SRGB_ALPHA_BPTC_UNORM
:
2858 if (!_mesa_has_EXT_texture_compression_bptc(ctx
))
2859 return GL_INVALID_OPERATION
;
2862 return GL_INVALID_OPERATION
;
2867 if (ctx
->Version
<= 20 || internalFormat
!= GL_RGBA8_SNORM
)
2868 return GL_INVALID_OPERATION
;
2871 case GL_UNSIGNED_SHORT
:
2872 if (!_mesa_has_EXT_texture_norm16(ctx
) || internalFormat
!= GL_RGBA16
)
2873 return GL_INVALID_OPERATION
;
2877 if (!_mesa_has_EXT_texture_norm16(ctx
) ||
2878 internalFormat
!= GL_RGBA16_SNORM
)
2879 return GL_INVALID_OPERATION
;
2882 case GL_UNSIGNED_SHORT_4_4_4_4
:
2883 switch (internalFormat
) {
2888 return GL_INVALID_OPERATION
;
2892 case GL_UNSIGNED_SHORT_5_5_5_1
:
2893 switch (internalFormat
) {
2898 return GL_INVALID_OPERATION
;
2902 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2903 switch (internalFormat
) {
2907 if (!_mesa_has_texture_type_2_10_10_10_REV(ctx
))
2908 return GL_INVALID_OPERATION
;
2911 return GL_INVALID_OPERATION
;
2916 if (ctx
->Version
<= 20 || internalFormat
!= GL_RGBA16F
)
2917 return GL_INVALID_OPERATION
;
2921 switch (internalFormat
) {
2924 if (ctx
->Version
<= 20)
2925 return GL_INVALID_OPERATION
;
2928 if (_mesa_has_OES_texture_float(ctx
) && internalFormat
== format
)
2931 return GL_INVALID_OPERATION
;
2935 case GL_HALF_FLOAT_OES
:
2936 if (_mesa_has_OES_texture_half_float(ctx
) && internalFormat
== format
)
2939 return GL_INVALID_OPERATION
;
2943 case GL_RGBA_INTEGER
:
2944 if (ctx
->Version
<= 20)
2945 return GL_INVALID_OPERATION
;
2947 case GL_UNSIGNED_BYTE
:
2948 if (internalFormat
!= GL_RGBA8UI
)
2949 return GL_INVALID_OPERATION
;
2953 if (internalFormat
!= GL_RGBA8I
)
2954 return GL_INVALID_OPERATION
;
2957 case GL_UNSIGNED_SHORT
:
2958 if (internalFormat
!= GL_RGBA16UI
)
2959 return GL_INVALID_OPERATION
;
2963 if (internalFormat
!= GL_RGBA16I
)
2964 return GL_INVALID_OPERATION
;
2967 case GL_UNSIGNED_INT
:
2968 if (internalFormat
!= GL_RGBA32UI
)
2969 return GL_INVALID_OPERATION
;
2973 if (internalFormat
!= GL_RGBA32I
)
2974 return GL_INVALID_OPERATION
;
2977 case GL_UNSIGNED_INT_2_10_10_10_REV
:
2978 if (internalFormat
!= GL_RGB10_A2UI
)
2979 return GL_INVALID_OPERATION
;
2983 return GL_INVALID_OPERATION
;
2989 case GL_UNSIGNED_BYTE
:
2990 switch (internalFormat
) {
2996 if (ctx
->Version
<= 20)
2997 return GL_INVALID_OPERATION
;
3000 return GL_INVALID_OPERATION
;
3005 if (ctx
->Version
<= 20 || internalFormat
!= GL_RGB8_SNORM
)
3006 return GL_INVALID_OPERATION
;
3009 case GL_UNSIGNED_SHORT
:
3010 if (!_mesa_has_EXT_texture_norm16(ctx
) || internalFormat
!= GL_RGB16
)
3011 return GL_INVALID_OPERATION
;
3015 if (!_mesa_has_EXT_texture_norm16(ctx
) ||
3016 internalFormat
!= GL_RGB16_SNORM
)
3017 return GL_INVALID_OPERATION
;
3020 case GL_UNSIGNED_SHORT_5_6_5
:
3021 switch (internalFormat
) {
3026 return GL_INVALID_OPERATION
;
3030 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
3031 if (ctx
->Version
<= 20 || internalFormat
!= GL_R11F_G11F_B10F
)
3032 return GL_INVALID_OPERATION
;
3035 case GL_UNSIGNED_INT_5_9_9_9_REV
:
3036 if (ctx
->Version
<= 20 || internalFormat
!= GL_RGB9_E5
)
3037 return GL_INVALID_OPERATION
;
3041 if (ctx
->Version
<= 20)
3042 return GL_INVALID_OPERATION
;
3043 switch (internalFormat
) {
3045 case GL_R11F_G11F_B10F
:
3049 return GL_INVALID_OPERATION
;
3054 switch (internalFormat
) {
3057 case GL_R11F_G11F_B10F
:
3059 if (ctx
->Version
<= 20)
3060 return GL_INVALID_OPERATION
;
3063 if (_mesa_has_OES_texture_float(ctx
) && internalFormat
== format
)
3065 case GL_COMPRESSED_RGB_BPTC_SIGNED_FLOAT
:
3066 case GL_COMPRESSED_RGB_BPTC_UNSIGNED_FLOAT
:
3067 if (!_mesa_has_EXT_texture_compression_bptc(ctx
))
3068 return GL_INVALID_OPERATION
;
3071 return GL_INVALID_OPERATION
;
3075 case GL_HALF_FLOAT_OES
:
3076 if (!_mesa_has_OES_texture_half_float(ctx
) || internalFormat
!= format
)
3077 return GL_INVALID_OPERATION
;
3080 case GL_UNSIGNED_INT_2_10_10_10_REV
:
3081 switch (internalFormat
) {
3086 /* GL_EXT_texture_type_2_10_10_10_REV allows GL_RGB even though
3087 * GLES3 doesn't, and GL_OES_required_internalformat extends that
3088 * to allow the sized RGB internalformats as well.
3090 if (!_mesa_has_texture_type_2_10_10_10_REV(ctx
))
3091 return GL_INVALID_OPERATION
;
3094 return GL_INVALID_OPERATION
;
3099 return GL_INVALID_OPERATION
;
3103 case GL_RGB_INTEGER
:
3104 if (ctx
->Version
<= 20)
3105 return GL_INVALID_OPERATION
;
3107 case GL_UNSIGNED_BYTE
:
3108 if (internalFormat
!= GL_RGB8UI
)
3109 return GL_INVALID_OPERATION
;
3113 if (internalFormat
!= GL_RGB8I
)
3114 return GL_INVALID_OPERATION
;
3117 case GL_UNSIGNED_SHORT
:
3118 if (internalFormat
!= GL_RGB16UI
)
3119 return GL_INVALID_OPERATION
;
3123 if (internalFormat
!= GL_RGB16I
)
3124 return GL_INVALID_OPERATION
;
3127 case GL_UNSIGNED_INT
:
3128 if (internalFormat
!= GL_RGB32UI
)
3129 return GL_INVALID_OPERATION
;
3133 if (internalFormat
!= GL_RGB32I
)
3134 return GL_INVALID_OPERATION
;
3138 return GL_INVALID_OPERATION
;
3143 if (!_mesa_has_rg_textures(ctx
))
3144 return GL_INVALID_OPERATION
;
3146 case GL_UNSIGNED_BYTE
:
3147 if (internalFormat
!= GL_RG8
&&
3148 (!_mesa_has_EXT_texture_compression_rgtc(ctx
) ||
3149 internalFormat
!= GL_COMPRESSED_RED_GREEN_RGTC2_EXT
))
3150 return GL_INVALID_OPERATION
;
3154 if (internalFormat
!= GL_RG8_SNORM
&&
3155 (!_mesa_has_EXT_texture_compression_rgtc(ctx
) ||
3156 internalFormat
!= GL_COMPRESSED_SIGNED_RED_GREEN_RGTC2_EXT
))
3157 return GL_INVALID_OPERATION
;
3160 case GL_UNSIGNED_SHORT
:
3161 if (!_mesa_has_EXT_texture_norm16(ctx
) || internalFormat
!= GL_RG16
)
3162 return GL_INVALID_OPERATION
;
3166 if (!_mesa_has_EXT_texture_norm16(ctx
) ||
3167 internalFormat
!= GL_RG16_SNORM
)
3168 return GL_INVALID_OPERATION
;
3172 case GL_HALF_FLOAT_OES
:
3173 switch (internalFormat
) {
3175 if (ctx
->Version
<= 20)
3176 return GL_INVALID_OPERATION
;
3179 if (_mesa_has_rg_textures(ctx
) &&
3180 _mesa_has_OES_texture_half_float(ctx
))
3184 return GL_INVALID_OPERATION
;
3189 switch (internalFormat
) {
3194 if (_mesa_has_rg_textures(ctx
) &&
3195 _mesa_has_OES_texture_float(ctx
))
3199 return GL_INVALID_OPERATION
;
3204 return GL_INVALID_OPERATION
;
3209 if (ctx
->Version
<= 20)
3210 return GL_INVALID_OPERATION
;
3212 case GL_UNSIGNED_BYTE
:
3213 if (internalFormat
!= GL_RG8UI
)
3214 return GL_INVALID_OPERATION
;
3218 if (internalFormat
!= GL_RG8I
)
3219 return GL_INVALID_OPERATION
;
3222 case GL_UNSIGNED_SHORT
:
3223 if (internalFormat
!= GL_RG16UI
)
3224 return GL_INVALID_OPERATION
;
3228 if (internalFormat
!= GL_RG16I
)
3229 return GL_INVALID_OPERATION
;
3232 case GL_UNSIGNED_INT
:
3233 if (internalFormat
!= GL_RG32UI
)
3234 return GL_INVALID_OPERATION
;
3238 if (internalFormat
!= GL_RG32I
)
3239 return GL_INVALID_OPERATION
;
3243 return GL_INVALID_OPERATION
;
3248 if (!_mesa_has_rg_textures(ctx
))
3249 return GL_INVALID_OPERATION
;
3251 case GL_UNSIGNED_BYTE
:
3252 if (internalFormat
== GL_R8
||
3253 ((internalFormat
== GL_SR8_EXT
) &&
3254 _mesa_has_EXT_texture_sRGB_R8(ctx
)) ||
3255 (internalFormat
== GL_COMPRESSED_RED_RGTC1_EXT
&&
3256 _mesa_has_EXT_texture_compression_rgtc(ctx
)))
3258 return GL_INVALID_OPERATION
;
3261 if (internalFormat
!= GL_R8_SNORM
&&
3262 (!_mesa_has_EXT_texture_compression_rgtc(ctx
) ||
3263 internalFormat
!= GL_COMPRESSED_SIGNED_RED_RGTC1_EXT
))
3264 return GL_INVALID_OPERATION
;
3267 case GL_UNSIGNED_SHORT
:
3268 if (!_mesa_has_EXT_texture_norm16(ctx
) || internalFormat
!= GL_R16
)
3269 return GL_INVALID_OPERATION
;
3273 if (!_mesa_has_EXT_texture_norm16(ctx
) ||
3274 internalFormat
!= GL_R16_SNORM
)
3275 return GL_INVALID_OPERATION
;
3279 case GL_HALF_FLOAT_OES
:
3280 switch (internalFormat
) {
3282 if (ctx
->Version
<= 20)
3283 return GL_INVALID_OPERATION
;
3287 if (_mesa_has_rg_textures(ctx
) &&
3288 _mesa_has_OES_texture_half_float(ctx
))
3292 return GL_INVALID_OPERATION
;
3297 switch (internalFormat
) {
3302 if (_mesa_has_rg_textures(ctx
) &&
3303 _mesa_has_OES_texture_float(ctx
))
3307 return GL_INVALID_OPERATION
;
3312 return GL_INVALID_OPERATION
;
3316 case GL_RED_INTEGER
:
3317 if (ctx
->Version
<= 20)
3318 return GL_INVALID_OPERATION
;
3320 case GL_UNSIGNED_BYTE
:
3321 if (internalFormat
!= GL_R8UI
)
3322 return GL_INVALID_OPERATION
;
3326 if (internalFormat
!= GL_R8I
)
3327 return GL_INVALID_OPERATION
;
3330 case GL_UNSIGNED_SHORT
:
3331 if (internalFormat
!= GL_R16UI
)
3332 return GL_INVALID_OPERATION
;
3336 if (internalFormat
!= GL_R16I
)
3337 return GL_INVALID_OPERATION
;
3340 case GL_UNSIGNED_INT
:
3341 if (internalFormat
!= GL_R32UI
)
3342 return GL_INVALID_OPERATION
;
3346 if (internalFormat
!= GL_R32I
)
3347 return GL_INVALID_OPERATION
;
3351 return GL_INVALID_OPERATION
;
3355 case GL_DEPTH_COMPONENT
:
3357 case GL_UNSIGNED_SHORT
:
3358 if (internalFormat
!= GL_DEPTH_COMPONENT
3359 && internalFormat
!= GL_DEPTH_COMPONENT16
)
3360 return GL_INVALID_OPERATION
;
3363 case GL_UNSIGNED_INT
:
3364 switch (internalFormat
) {
3365 case GL_DEPTH_COMPONENT
:
3366 case GL_DEPTH_COMPONENT16
:
3367 case GL_DEPTH_COMPONENT24
:
3370 return GL_INVALID_OPERATION
;
3375 if (ctx
->Version
<= 20 || internalFormat
!= GL_DEPTH_COMPONENT32F
)
3376 return GL_INVALID_OPERATION
;
3380 return GL_INVALID_OPERATION
;
3384 case GL_DEPTH_STENCIL
:
3386 case GL_UNSIGNED_INT_24_8
:
3387 if (internalFormat
!= GL_DEPTH_STENCIL
3388 && internalFormat
!= GL_DEPTH24_STENCIL8
)
3389 return GL_INVALID_OPERATION
;
3392 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
3393 if (ctx
->Version
<= 20 || internalFormat
!= GL_DEPTH32F_STENCIL8
)
3394 return GL_INVALID_OPERATION
;
3398 return GL_INVALID_OPERATION
;
3402 case GL_STENCIL_INDEX
:
3403 if (!_mesa_has_OES_texture_stencil8(ctx
) ||
3404 type
!= GL_UNSIGNED_BYTE
||
3405 internalFormat
!= GL_STENCIL_INDEX8
) {
3406 return GL_INVALID_OPERATION
;
3412 case GL_LUMINANCE_ALPHA
:
3415 if (!_mesa_has_OES_texture_float(ctx
) || internalFormat
!= format
)
3416 return GL_INVALID_OPERATION
;
3418 case GL_HALF_FLOAT_OES
:
3419 if (!_mesa_has_OES_texture_half_float(ctx
) || internalFormat
!= format
)
3420 return GL_INVALID_OPERATION
;
3422 case GL_UNSIGNED_BYTE
:
3423 if (!(format
== internalFormat
||
3424 (format
== GL_ALPHA
&& internalFormat
== GL_ALPHA8
) ||
3425 (format
== GL_LUMINANCE
&& internalFormat
== GL_LUMINANCE8
) ||
3426 (format
== GL_LUMINANCE_ALPHA
&&
3427 ((internalFormat
== GL_LUMINANCE8_ALPHA8
) ||
3428 (internalFormat
== GL_LUMINANCE4_ALPHA4
))))) {
3429 return GL_INVALID_OPERATION
;
3433 return GL_INVALID_OPERATION
;
3442 set_swizzle(uint8_t *swizzle
, int x
, int y
, int z
, int w
)
3444 swizzle
[MESA_FORMAT_SWIZZLE_X
] = x
;
3445 swizzle
[MESA_FORMAT_SWIZZLE_Y
] = y
;
3446 swizzle
[MESA_FORMAT_SWIZZLE_Z
] = z
;
3447 swizzle
[MESA_FORMAT_SWIZZLE_W
] = w
;
3451 get_swizzle_from_gl_format(GLenum format
, uint8_t *swizzle
)
3455 case GL_RGBA_INTEGER_EXT
:
3456 set_swizzle(swizzle
, 0, 1, 2, 3);
3459 case GL_BGRA_INTEGER_EXT
:
3460 set_swizzle(swizzle
, 2, 1, 0, 3);
3463 set_swizzle(swizzle
, 3, 2, 1, 0);
3466 case GL_RGB_INTEGER_EXT
:
3467 set_swizzle(swizzle
, 0, 1, 2, 5);
3470 case GL_BGR_INTEGER_EXT
:
3471 set_swizzle(swizzle
, 2, 1, 0, 5);
3473 case GL_LUMINANCE_ALPHA
:
3474 case GL_LUMINANCE_ALPHA_INTEGER_EXT
:
3475 set_swizzle(swizzle
, 0, 0, 0, 1);
3479 set_swizzle(swizzle
, 0, 1, 4, 5);
3482 case GL_RED_INTEGER_EXT
:
3483 set_swizzle(swizzle
, 0, 4, 4, 5);
3486 case GL_GREEN_INTEGER_EXT
:
3487 set_swizzle(swizzle
, 4, 0, 4, 5);
3490 case GL_BLUE_INTEGER_EXT
:
3491 set_swizzle(swizzle
, 4, 4, 0, 5);
3494 case GL_ALPHA_INTEGER_EXT
:
3495 set_swizzle(swizzle
, 4, 4, 4, 0);
3498 case GL_LUMINANCE_INTEGER_EXT
:
3499 set_swizzle(swizzle
, 0, 0, 0, 5);
3502 set_swizzle(swizzle
, 0, 0, 0, 0);
3504 case GL_DEPTH_COMPONENT
:
3505 set_swizzle(swizzle
, 0, 6, 6, 6);
3507 case GL_STENCIL_INDEX
:
3508 set_swizzle(swizzle
, 6, 0, 6, 6);
3516 _mesa_swap_bytes_in_type_enum(GLenum
*type
)
3519 case GL_UNSIGNED_INT_8_8_8_8
:
3520 *type
= GL_UNSIGNED_INT_8_8_8_8_REV
;
3522 case GL_UNSIGNED_INT_8_8_8_8_REV
:
3523 *type
= GL_UNSIGNED_INT_8_8_8_8
;
3525 case GL_UNSIGNED_SHORT_8_8_MESA
:
3526 *type
= GL_UNSIGNED_SHORT_8_8_REV_MESA
;
3528 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
3529 *type
= GL_UNSIGNED_SHORT_8_8_MESA
;
3532 case GL_UNSIGNED_BYTE
:
3533 /* format/types that are arrays of 8-bit values are unaffected by
3538 /* swapping bytes on 4444, 1555, or >8 bit per channel types etc. will
3539 * never match a Mesa format.
3546 * Take an OpenGL format (GL_RGB, GL_RGBA, etc), OpenGL data type (GL_INT,
3547 * GL_FOAT, etc) and return a matching mesa_array_format or a mesa_format
3548 * otherwise (for non-array formats).
3550 * This function will typically be used to compute a mesa format from a GL type
3551 * so we can then call _mesa_format_convert. This function does
3552 * not consider byte swapping, so it returns types assuming that no byte
3553 * swapping is involved. If byte swapping is involved then clients are supposed
3554 * to handle that on their side before calling _mesa_format_convert.
3556 * This function returns an uint32_t that can pack a mesa_format or a
3557 * mesa_array_format. Clients must check the mesa array format bit
3558 * (MESA_ARRAY_FORMAT_BIT) on the return value to know if the returned
3559 * format is a mesa_array_format or a mesa_format.
3562 _mesa_format_from_format_and_type(GLenum format
, GLenum type
)
3564 bool is_array_format
= true;
3566 bool normalized
= false, is_float
= false, is_signed
= false;
3567 int num_channels
= 0, type_size
= 0;
3569 if (format
== GL_COLOR_INDEX
)
3570 return MESA_FORMAT_NONE
;
3572 /* Extract array format type information from the OpenGL data type */
3574 case GL_UNSIGNED_BYTE
:
3581 case GL_UNSIGNED_SHORT
:
3588 case GL_UNSIGNED_INT
:
3596 case GL_HALF_FLOAT_OES
:
3607 is_array_format
= false;
3611 /* Extract array format swizzle information from the OpenGL format */
3612 if (is_array_format
)
3613 is_array_format
= get_swizzle_from_gl_format(format
, swizzle
);
3615 /* If this is an array format type after checking data type and format,
3616 * create the array format
3618 if (is_array_format
) {
3619 enum mesa_array_format_base_format bf
;
3621 case GL_DEPTH_COMPONENT
:
3622 bf
= MESA_ARRAY_FORMAT_BASE_FORMAT_DEPTH
;
3624 case GL_STENCIL_INDEX
:
3625 bf
= MESA_ARRAY_FORMAT_BASE_FORMAT_STENCIL
;
3628 bf
= MESA_ARRAY_FORMAT_BASE_FORMAT_RGBA_VARIANTS
;
3632 normalized
= !(_mesa_is_enum_format_integer(format
) ||
3633 format
== GL_STENCIL_INDEX
);
3634 num_channels
= _mesa_components_in_format(format
);
3636 return MESA_ARRAY_FORMAT(bf
, type_size
, is_signed
, is_float
,
3637 normalized
, num_channels
,
3638 swizzle
[0], swizzle
[1], swizzle
[2], swizzle
[3]);
3641 /* Otherwise this is not an array format, so return the mesa_format
3642 * matching the OpenGL format and data type
3645 case GL_UNSIGNED_SHORT_5_6_5
:
3646 if (format
== GL_RGB
)
3647 return MESA_FORMAT_B5G6R5_UNORM
;
3648 else if (format
== GL_BGR
)
3649 return MESA_FORMAT_R5G6B5_UNORM
;
3650 else if (format
== GL_RGB_INTEGER
)
3651 return MESA_FORMAT_B5G6R5_UINT
;
3653 case GL_UNSIGNED_SHORT_5_6_5_REV
:
3654 if (format
== GL_RGB
)
3655 return MESA_FORMAT_R5G6B5_UNORM
;
3656 else if (format
== GL_BGR
)
3657 return MESA_FORMAT_B5G6R5_UNORM
;
3658 else if (format
== GL_RGB_INTEGER
)
3659 return MESA_FORMAT_R5G6B5_UINT
;
3661 case GL_UNSIGNED_SHORT_4_4_4_4
:
3662 if (format
== GL_RGBA
)
3663 return MESA_FORMAT_A4B4G4R4_UNORM
;
3664 else if (format
== GL_BGRA
)
3665 return MESA_FORMAT_A4R4G4B4_UNORM
;
3666 else if (format
== GL_ABGR_EXT
)
3667 return MESA_FORMAT_R4G4B4A4_UNORM
;
3668 else if (format
== GL_RGBA_INTEGER
)
3669 return MESA_FORMAT_A4B4G4R4_UINT
;
3670 else if (format
== GL_BGRA_INTEGER
)
3671 return MESA_FORMAT_A4R4G4B4_UINT
;
3673 case GL_UNSIGNED_SHORT_4_4_4_4_REV
:
3674 if (format
== GL_RGBA
)
3675 return MESA_FORMAT_R4G4B4A4_UNORM
;
3676 else if (format
== GL_BGRA
)
3677 return MESA_FORMAT_B4G4R4A4_UNORM
;
3678 else if (format
== GL_ABGR_EXT
)
3679 return MESA_FORMAT_A4B4G4R4_UNORM
;
3680 else if (format
== GL_RGBA_INTEGER
)
3681 return MESA_FORMAT_R4G4B4A4_UINT
;
3682 else if (format
== GL_BGRA_INTEGER
)
3683 return MESA_FORMAT_B4G4R4A4_UINT
;
3685 case GL_UNSIGNED_SHORT_5_5_5_1
:
3686 if (format
== GL_RGBA
)
3687 return MESA_FORMAT_A1B5G5R5_UNORM
;
3688 else if (format
== GL_BGRA
)
3689 return MESA_FORMAT_A1R5G5B5_UNORM
;
3690 else if (format
== GL_RGBA_INTEGER
)
3691 return MESA_FORMAT_A1B5G5R5_UINT
;
3692 else if (format
== GL_BGRA_INTEGER
)
3693 return MESA_FORMAT_A1R5G5B5_UINT
;
3695 case GL_UNSIGNED_SHORT_1_5_5_5_REV
:
3696 if (format
== GL_RGBA
)
3697 return MESA_FORMAT_R5G5B5A1_UNORM
;
3698 else if (format
== GL_BGRA
)
3699 return MESA_FORMAT_B5G5R5A1_UNORM
;
3700 else if (format
== GL_RGBA_INTEGER
)
3701 return MESA_FORMAT_R5G5B5A1_UINT
;
3702 else if (format
== GL_BGRA_INTEGER
)
3703 return MESA_FORMAT_B5G5R5A1_UINT
;
3705 case GL_UNSIGNED_BYTE_3_3_2
:
3706 if (format
== GL_RGB
)
3707 return MESA_FORMAT_B2G3R3_UNORM
;
3708 else if (format
== GL_RGB_INTEGER
)
3709 return MESA_FORMAT_B2G3R3_UINT
;
3711 case GL_UNSIGNED_BYTE_2_3_3_REV
:
3712 if (format
== GL_RGB
)
3713 return MESA_FORMAT_R3G3B2_UNORM
;
3714 else if (format
== GL_RGB_INTEGER
)
3715 return MESA_FORMAT_R3G3B2_UINT
;
3717 case GL_UNSIGNED_INT_5_9_9_9_REV
:
3718 if (format
== GL_RGB
)
3719 return MESA_FORMAT_R9G9B9E5_FLOAT
;
3721 case GL_UNSIGNED_INT_10_10_10_2
:
3722 if (format
== GL_RGBA
)
3723 return MESA_FORMAT_A2B10G10R10_UNORM
;
3724 else if (format
== GL_RGBA_INTEGER
)
3725 return MESA_FORMAT_A2B10G10R10_UINT
;
3726 else if (format
== GL_BGRA
)
3727 return MESA_FORMAT_A2R10G10B10_UNORM
;
3728 else if (format
== GL_BGRA_INTEGER
)
3729 return MESA_FORMAT_A2R10G10B10_UINT
;
3731 case GL_UNSIGNED_INT_2_10_10_10_REV
:
3732 if (format
== GL_RGB
)
3733 return MESA_FORMAT_R10G10B10X2_UNORM
;
3734 if (format
== GL_RGBA
)
3735 return MESA_FORMAT_R10G10B10A2_UNORM
;
3736 else if (format
== GL_RGBA_INTEGER
)
3737 return MESA_FORMAT_R10G10B10A2_UINT
;
3738 else if (format
== GL_BGRA
)
3739 return MESA_FORMAT_B10G10R10A2_UNORM
;
3740 else if (format
== GL_BGRA_INTEGER
)
3741 return MESA_FORMAT_B10G10R10A2_UINT
;
3743 case GL_UNSIGNED_INT_8_8_8_8
:
3744 if (format
== GL_RGBA
)
3745 return MESA_FORMAT_A8B8G8R8_UNORM
;
3746 else if (format
== GL_BGRA
)
3747 return MESA_FORMAT_A8R8G8B8_UNORM
;
3748 else if (format
== GL_ABGR_EXT
)
3749 return MESA_FORMAT_R8G8B8A8_UNORM
;
3750 else if (format
== GL_RGBA_INTEGER
)
3751 return MESA_FORMAT_A8B8G8R8_UINT
;
3752 else if (format
== GL_BGRA_INTEGER
)
3753 return MESA_FORMAT_A8R8G8B8_UINT
;
3755 case GL_UNSIGNED_INT_8_8_8_8_REV
:
3756 if (format
== GL_RGBA
)
3757 return MESA_FORMAT_R8G8B8A8_UNORM
;
3758 else if (format
== GL_BGRA
)
3759 return MESA_FORMAT_B8G8R8A8_UNORM
;
3760 else if (format
== GL_ABGR_EXT
)
3761 return MESA_FORMAT_A8B8G8R8_UNORM
;
3762 else if (format
== GL_RGBA_INTEGER
)
3763 return MESA_FORMAT_R8G8B8A8_UINT
;
3764 else if (format
== GL_BGRA_INTEGER
)
3765 return MESA_FORMAT_B8G8R8A8_UINT
;
3767 case GL_UNSIGNED_SHORT_8_8_MESA
:
3768 if (format
== GL_YCBCR_MESA
)
3769 return MESA_FORMAT_YCBCR
;
3771 case GL_UNSIGNED_SHORT_8_8_REV_MESA
:
3772 if (format
== GL_YCBCR_MESA
)
3773 return MESA_FORMAT_YCBCR_REV
;
3775 case GL_UNSIGNED_INT_10F_11F_11F_REV
:
3776 if (format
== GL_RGB
)
3777 return MESA_FORMAT_R11G11B10_FLOAT
;
3780 if (format
== GL_DEPTH_COMPONENT
)
3781 return MESA_FORMAT_Z_FLOAT32
;
3783 case GL_UNSIGNED_INT
:
3784 if (format
== GL_DEPTH_COMPONENT
)
3785 return MESA_FORMAT_Z_UNORM32
;
3787 case GL_UNSIGNED_SHORT
:
3788 if (format
== GL_DEPTH_COMPONENT
)
3789 return MESA_FORMAT_Z_UNORM16
;
3791 case GL_UNSIGNED_INT_24_8
:
3792 if (format
== GL_DEPTH_STENCIL
)
3793 return MESA_FORMAT_S8_UINT_Z24_UNORM
;
3794 else if (format
== GL_DEPTH_COMPONENT
)
3795 return MESA_FORMAT_X8_UINT_Z24_UNORM
;
3797 case GL_FLOAT_32_UNSIGNED_INT_24_8_REV
:
3798 if (format
== GL_DEPTH_STENCIL
)
3799 return MESA_FORMAT_Z32_FLOAT_S8X24_UINT
;
3805 fprintf(stderr
, "Unsupported format/type: %s/%s\n",
3806 _mesa_enum_to_string(format
),
3807 _mesa_enum_to_string(type
));
3809 /* If we got here it means that we could not find a Mesa format that
3810 * matches the GL format/type provided. We may need to add a new Mesa
3811 * format in that case.
3813 unreachable("Unsupported format");
3817 _mesa_tex_format_from_format_and_type(const struct gl_context
*ctx
,
3818 GLenum gl_format
, GLenum type
)
3820 mesa_format format
= _mesa_format_from_format_and_type(gl_format
, type
);
3822 if (_mesa_format_is_mesa_array_format(format
))
3823 format
= _mesa_format_from_array_format(format
);
3825 if (format
== MESA_FORMAT_NONE
|| !ctx
->TextureFormatSupported
[format
])
3826 return MESA_FORMAT_NONE
;
3832 * Returns true if \p internal_format is a sized internal format that
3833 * is marked "Color Renderable" in Table 8.10 of the ES 3.2 specification.
3836 _mesa_is_es3_color_renderable(const struct gl_context
*ctx
,
3837 GLenum internal_format
)
3839 switch (internal_format
) {
3849 case GL_SRGB8_ALPHA8
:
3856 case GL_R11F_G11F_B10F
:
3879 return _mesa_has_EXT_texture_norm16(ctx
);
3882 case GL_RGBA8_SNORM
:
3883 return _mesa_has_EXT_render_snorm(ctx
);
3886 case GL_RGBA16_SNORM
:
3887 return _mesa_has_EXT_texture_norm16(ctx
) &&
3888 _mesa_has_EXT_render_snorm(ctx
);
3895 * Returns true if \p internal_format is a sized internal format that
3896 * is marked "Texture Filterable" in Table 8.10 of the ES 3.2 specification.
3899 _mesa_is_es3_texture_filterable(const struct gl_context
*ctx
,
3900 GLenum internal_format
)
3902 switch (internal_format
) {
3913 case GL_RGBA8_SNORM
:
3916 case GL_SRGB8_ALPHA8
:
3921 case GL_R11F_G11F_B10F
:
3929 case GL_RGB16_SNORM
:
3931 case GL_RGBA16_SNORM
:
3932 return _mesa_has_EXT_texture_norm16(ctx
);
3937 /* The OES_texture_float_linear spec says:
3939 * "When implemented against OpenGL ES 3.0 or later versions, sized
3940 * 32-bit floating-point formats become texture-filterable. This
3941 * should be noted by, for example, checking the ``TF'' column of
3942 * table 8.13 in the ES 3.1 Specification (``Correspondence of sized
3943 * internal formats to base internal formats ... and use cases ...'')
3944 * for the R32F, RG32F, RGB32F, and RGBA32F formats."
3946 return _mesa_has_OES_texture_float_linear(ctx
);