2 * Mesa 3-D graphics library
4 * Copyright (C) 1999-2008 Brian Paul All Rights Reserved.
5 * Copyright (c) 2008-2009 VMware, Inc.
7 * Permission is hereby granted, free of charge, to any person obtaining a
8 * copy of this software and associated documentation files (the "Software"),
9 * to deal in the Software without restriction, including without limitation
10 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
11 * and/or sell copies of the Software, and to permit persons to whom the
12 * Software is furnished to do so, subject to the following conditions:
14 * The above copyright notice and this permission notice shall be included
15 * in all copies or substantial portions of the Software.
17 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
19 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
20 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
21 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
22 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
23 * OTHER DEALINGS IN THE SOFTWARE.
31 #include "glformats.h"
32 #include "c11/threads.h"
33 #include "util/hash_table.h"
36 * Information about texture formats.
38 struct mesa_format_info
42 /** text name for debugging */
45 enum mesa_format_layout Layout
;
48 * Base format is one of GL_RED, GL_RG, GL_RGB, GL_RGBA, GL_ALPHA,
49 * GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY, GL_YCBCR_MESA,
50 * GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
55 * Logical data type: one of GL_UNSIGNED_NORMALIZED, GL_SIGNED_NORMALIZED,
56 * GL_UNSIGNED_INT, GL_INT, GL_FLOAT.
64 uint8_t LuminanceBits
;
65 uint8_t IntensityBits
;
72 * To describe compressed formats. If not compressed, Width=Height=Depth=1.
74 uint8_t BlockWidth
, BlockHeight
, BlockDepth
;
75 uint8_t BytesPerBlock
;
78 mesa_array_format ArrayFormat
;
81 #include "format_info.h"
83 static const struct mesa_format_info
*
84 _mesa_get_format_info(mesa_format format
)
86 const struct mesa_format_info
*info
= &format_info
[format
];
87 STATIC_ASSERT(ARRAY_SIZE(format_info
) == MESA_FORMAT_COUNT
);
88 assert(info
->Name
== format
);
93 /** Return string name of format (for debugging) */
95 _mesa_get_format_name(mesa_format format
)
97 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
104 * Return bytes needed to store a block of pixels in the given format.
105 * Normally, a block is 1x1 (a single pixel). But for compressed formats
106 * a block may be 4x4 or 8x4, etc.
108 * Note: return is signed, so as not to coerce math to unsigned. cf. fdo #37351
111 _mesa_get_format_bytes(mesa_format format
)
113 if (_mesa_format_is_mesa_array_format(format
)) {
114 return _mesa_array_format_get_type_size(format
) *
115 _mesa_array_format_get_num_channels(format
);
118 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
119 assert(info
->BytesPerBlock
);
120 assert(info
->BytesPerBlock
<= MAX_PIXEL_BYTES
||
121 _mesa_is_format_compressed(format
));
122 return info
->BytesPerBlock
;
127 * Return bits per component for the given format.
128 * \param format one of MESA_FORMAT_x
129 * \param pname the component, such as GL_RED_BITS, GL_TEXTURE_BLUE_BITS, etc.
132 _mesa_get_format_bits(mesa_format format
, GLenum pname
)
134 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
138 case GL_TEXTURE_RED_SIZE
:
139 case GL_RENDERBUFFER_RED_SIZE_EXT
:
140 case GL_FRAMEBUFFER_ATTACHMENT_RED_SIZE
:
141 case GL_INTERNALFORMAT_RED_SIZE
:
142 return info
->RedBits
;
144 case GL_TEXTURE_GREEN_SIZE
:
145 case GL_RENDERBUFFER_GREEN_SIZE_EXT
:
146 case GL_FRAMEBUFFER_ATTACHMENT_GREEN_SIZE
:
147 case GL_INTERNALFORMAT_GREEN_SIZE
:
148 return info
->GreenBits
;
150 case GL_TEXTURE_BLUE_SIZE
:
151 case GL_RENDERBUFFER_BLUE_SIZE_EXT
:
152 case GL_FRAMEBUFFER_ATTACHMENT_BLUE_SIZE
:
153 case GL_INTERNALFORMAT_BLUE_SIZE
:
154 return info
->BlueBits
;
156 case GL_TEXTURE_ALPHA_SIZE
:
157 case GL_RENDERBUFFER_ALPHA_SIZE_EXT
:
158 case GL_FRAMEBUFFER_ATTACHMENT_ALPHA_SIZE
:
159 case GL_INTERNALFORMAT_ALPHA_SIZE
:
160 return info
->AlphaBits
;
161 case GL_TEXTURE_INTENSITY_SIZE
:
162 return info
->IntensityBits
;
163 case GL_TEXTURE_LUMINANCE_SIZE
:
164 return info
->LuminanceBits
;
168 case GL_TEXTURE_DEPTH_SIZE_ARB
:
169 case GL_RENDERBUFFER_DEPTH_SIZE_EXT
:
170 case GL_FRAMEBUFFER_ATTACHMENT_DEPTH_SIZE
:
171 case GL_INTERNALFORMAT_DEPTH_SIZE
:
172 return info
->DepthBits
;
173 case GL_STENCIL_BITS
:
174 case GL_TEXTURE_STENCIL_SIZE_EXT
:
175 case GL_RENDERBUFFER_STENCIL_SIZE_EXT
:
176 case GL_FRAMEBUFFER_ATTACHMENT_STENCIL_SIZE
:
177 case GL_INTERNALFORMAT_STENCIL_SIZE
:
178 return info
->StencilBits
;
180 _mesa_problem(NULL
, "bad pname in _mesa_get_format_bits()");
187 _mesa_get_format_max_bits(mesa_format format
)
189 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
190 unsigned int max
= MAX2(info
->RedBits
, info
->GreenBits
);
191 max
= MAX2(max
, info
->BlueBits
);
192 max
= MAX2(max
, info
->AlphaBits
);
193 max
= MAX2(max
, info
->LuminanceBits
);
194 max
= MAX2(max
, info
->IntensityBits
);
195 max
= MAX2(max
, info
->DepthBits
);
196 max
= MAX2(max
, info
->StencilBits
);
202 * Return the layout type of the given format.
204 extern enum mesa_format_layout
205 _mesa_get_format_layout(mesa_format format
)
207 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
213 * Return the data type (or more specifically, the data representation)
214 * for the given format.
215 * The return value will be one of:
216 * GL_UNSIGNED_NORMALIZED = unsigned int representing [0,1]
217 * GL_SIGNED_NORMALIZED = signed int representing [-1, 1]
218 * GL_UNSIGNED_INT = an ordinary unsigned integer
219 * GL_INT = an ordinary signed integer
220 * GL_FLOAT = an ordinary float
223 _mesa_get_format_datatype(mesa_format format
)
225 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
226 return info
->DataType
;
230 get_base_format_for_array_format(mesa_array_format format
)
235 _mesa_array_format_get_swizzle(format
, swizzle
);
236 num_channels
= _mesa_array_format_get_num_channels(format
);
238 switch (num_channels
) {
240 /* FIXME: RGBX formats have 4 channels, but their base format is GL_RGB.
241 * This is not really a problem for now because we only create array
242 * formats from GL format/type combinations, and these cannot specify
249 if (swizzle
[0] == 0 &&
253 return GL_LUMINANCE_ALPHA
;
254 if (swizzle
[0] == 1 &&
258 return GL_LUMINANCE_ALPHA
;
259 if (swizzle
[0] == 0 &&
264 if (swizzle
[0] == 1 &&
271 if (swizzle
[0] == 0 &&
276 if (swizzle
[0] == 0 &&
281 if (swizzle
[0] <= MESA_FORMAT_SWIZZLE_W
)
283 if (swizzle
[1] <= MESA_FORMAT_SWIZZLE_W
)
285 if (swizzle
[2] <= MESA_FORMAT_SWIZZLE_W
)
287 if (swizzle
[3] <= MESA_FORMAT_SWIZZLE_W
)
292 unreachable("Unsupported format");
296 * Return the basic format for the given type. The result will be one of
297 * GL_RGB, GL_RGBA, GL_ALPHA, GL_LUMINANCE, GL_LUMINANCE_ALPHA, GL_INTENSITY,
298 * GL_YCBCR_MESA, GL_DEPTH_COMPONENT, GL_STENCIL_INDEX, GL_DEPTH_STENCIL.
299 * This functions accepts a mesa_format or a mesa_array_format.
302 _mesa_get_format_base_format(uint32_t format
)
304 if (!_mesa_format_is_mesa_array_format(format
)) {
305 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
306 return info
->BaseFormat
;
308 return get_base_format_for_array_format(format
);
314 * Return the block size (in pixels) for the given format. Normally
315 * the block size is 1x1. But compressed formats will have block sizes
316 * of 4x4 or 8x4 pixels, etc.
317 * \param bw returns block width in pixels
318 * \param bh returns block height in pixels
321 _mesa_get_format_block_size(mesa_format format
,
322 unsigned int *bw
, unsigned int *bh
)
324 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
325 /* Use _mesa_get_format_block_size_3d() for 3D blocks. */
326 assert(info
->BlockDepth
== 1);
328 *bw
= info
->BlockWidth
;
329 *bh
= info
->BlockHeight
;
334 * Return the block size (in pixels) for the given format. Normally
335 * the block size is 1x1x1. But compressed formats will have block
336 * sizes of 4x4x4, 3x3x3 pixels, etc.
337 * \param bw returns block width in pixels
338 * \param bh returns block height in pixels
339 * \param bd returns block depth in pixels
342 _mesa_get_format_block_size_3d(mesa_format format
,
347 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
348 *bw
= info
->BlockWidth
;
349 *bh
= info
->BlockHeight
;
350 *bd
= info
->BlockDepth
;
355 * Returns the an array of four numbers representing the transformation
356 * from the RGBA or SZ colorspace to the given format. For array formats,
357 * the i'th RGBA component is given by:
359 * if (swizzle[i] <= MESA_FORMAT_SWIZZLE_W)
360 * comp = data[swizzle[i]];
361 * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_ZERO)
363 * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_ONE)
365 * else if (swizzle[i] == MESA_FORMAT_SWIZZLE_NONE)
366 * // data does not contain a channel of this format
368 * For packed formats, the swizzle gives the number of components left of
369 * the least significant bit.
371 * Compressed formats have no swizzle.
374 _mesa_get_format_swizzle(mesa_format format
, uint8_t swizzle_out
[4])
376 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
377 memcpy(swizzle_out
, info
->Swizzle
, sizeof(info
->Swizzle
));
381 _mesa_array_format_flip_channels(mesa_array_format format
)
386 num_channels
= _mesa_array_format_get_num_channels(format
);
387 _mesa_array_format_get_swizzle(format
, swizzle
);
389 if (num_channels
== 1)
392 if (num_channels
== 2) {
393 /* Assert that the swizzle makes sense for 2 channels */
394 for (unsigned i
= 0; i
< 4; i
++)
395 assert(swizzle
[i
] != 2 && swizzle
[i
] != 3);
397 static const uint8_t flip_xy
[6] = { 1, 0, 2, 3, 4, 5 };
398 _mesa_array_format_set_swizzle(&format
,
399 flip_xy
[swizzle
[0]], flip_xy
[swizzle
[1]],
400 flip_xy
[swizzle
[2]], flip_xy
[swizzle
[3]]);
404 if (num_channels
== 4) {
405 static const uint8_t flip
[6] = { 3, 2, 1, 0, 4, 5 };
406 _mesa_array_format_set_swizzle(&format
,
407 flip
[swizzle
[0]], flip
[swizzle
[1]],
408 flip
[swizzle
[2]], flip
[swizzle
[3]]);
412 unreachable("Invalid array format");
416 _mesa_format_to_array_format(mesa_format format
)
418 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
419 if (info
->ArrayFormat
&& !_mesa_little_endian() &&
420 info
->Layout
== MESA_FORMAT_LAYOUT_PACKED
)
421 return _mesa_array_format_flip_channels(info
->ArrayFormat
);
423 return info
->ArrayFormat
;
426 static struct hash_table
*format_array_format_table
;
427 static once_flag format_array_format_table_exists
= ONCE_FLAG_INIT
;
430 format_array_format_table_destroy(void)
432 _mesa_hash_table_destroy(format_array_format_table
, NULL
);
436 array_formats_equal(const void *a
, const void *b
)
438 return (intptr_t)a
== (intptr_t)b
;
442 format_array_format_table_init(void)
444 const struct mesa_format_info
*info
;
445 mesa_array_format array_format
;
448 format_array_format_table
= _mesa_hash_table_create(NULL
, NULL
,
449 array_formats_equal
);
451 if (!format_array_format_table
) {
452 _mesa_error_no_memory(__func__
);
456 for (f
= 1; f
< MESA_FORMAT_COUNT
; ++f
) {
457 info
= _mesa_get_format_info(f
);
458 if (!info
->ArrayFormat
)
461 if (_mesa_little_endian()) {
462 array_format
= info
->ArrayFormat
;
464 array_format
= _mesa_array_format_flip_channels(info
->ArrayFormat
);
467 /* This can happen and does for some of the BGR formats. Let's take
468 * the first one in the list.
470 if (_mesa_hash_table_search_pre_hashed(format_array_format_table
,
472 (void *)(intptr_t)array_format
))
475 _mesa_hash_table_insert_pre_hashed(format_array_format_table
,
477 (void *)(intptr_t)array_format
,
478 (void *)(intptr_t)f
);
481 atexit(format_array_format_table_destroy
);
485 _mesa_format_from_array_format(uint32_t array_format
)
487 struct hash_entry
*entry
;
489 assert(_mesa_format_is_mesa_array_format(array_format
));
491 call_once(&format_array_format_table_exists
, format_array_format_table_init
);
493 if (!format_array_format_table
) {
494 static const once_flag once_flag_init
= ONCE_FLAG_INIT
;
495 format_array_format_table_exists
= once_flag_init
;
496 return MESA_FORMAT_NONE
;
499 entry
= _mesa_hash_table_search_pre_hashed(format_array_format_table
,
501 (void *)(intptr_t)array_format
);
503 return (intptr_t)entry
->data
;
505 return MESA_FORMAT_NONE
;
508 /** Is the given format a compressed format? */
510 _mesa_is_format_compressed(mesa_format format
)
512 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
513 return info
->BlockWidth
> 1 || info
->BlockHeight
> 1;
518 * Determine if the given format represents a packed depth/stencil buffer.
521 _mesa_is_format_packed_depth_stencil(mesa_format format
)
523 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
525 return info
->BaseFormat
== GL_DEPTH_STENCIL
;
530 * Is the given format a signed/unsigned integer color format?
533 _mesa_is_format_integer_color(mesa_format format
)
535 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
536 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
) &&
537 info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
538 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
539 info
->BaseFormat
!= GL_STENCIL_INDEX
;
544 * Is the given format an unsigned integer format?
547 _mesa_is_format_unsigned(mesa_format format
)
549 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
550 return _mesa_is_type_unsigned(info
->DataType
);
555 * Does the given format store signed values?
558 _mesa_is_format_signed(mesa_format format
)
560 if (format
== MESA_FORMAT_R11G11B10_FLOAT
||
561 format
== MESA_FORMAT_R9G9B9E5_FLOAT
) {
562 /* these packed float formats only store unsigned values */
566 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
567 return (info
->DataType
== GL_SIGNED_NORMALIZED
||
568 info
->DataType
== GL_INT
||
569 info
->DataType
== GL_FLOAT
);
574 * Is the given format an integer format?
577 _mesa_is_format_integer(mesa_format format
)
579 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
580 return (info
->DataType
== GL_INT
|| info
->DataType
== GL_UNSIGNED_INT
);
585 * Return true if the given format is a color format.
588 _mesa_is_format_color_format(mesa_format format
)
590 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
591 switch (info
->BaseFormat
) {
592 case GL_DEPTH_COMPONENT
:
593 case GL_STENCIL_INDEX
:
594 case GL_DEPTH_STENCIL
:
602 _mesa_is_format_srgb(mesa_format format
)
604 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
605 return info
->IsSRGBFormat
;
609 * Return TRUE if format is an ETC2 compressed format specified
610 * by GL_ARB_ES3_compatibility.
613 _mesa_is_format_etc2(mesa_format format
)
616 case MESA_FORMAT_ETC2_RGB8
:
617 case MESA_FORMAT_ETC2_SRGB8
:
618 case MESA_FORMAT_ETC2_RGBA8_EAC
:
619 case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC
:
620 case MESA_FORMAT_ETC2_R11_EAC
:
621 case MESA_FORMAT_ETC2_RG11_EAC
:
622 case MESA_FORMAT_ETC2_SIGNED_R11_EAC
:
623 case MESA_FORMAT_ETC2_SIGNED_RG11_EAC
:
624 case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
:
625 case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
:
634 * Return TRUE if format is an ASTC 2D compressed format.
637 _mesa_is_format_astc_2d(mesa_format format
)
640 case MESA_FORMAT_RGBA_ASTC_4x4
:
641 case MESA_FORMAT_RGBA_ASTC_5x4
:
642 case MESA_FORMAT_RGBA_ASTC_5x5
:
643 case MESA_FORMAT_RGBA_ASTC_6x5
:
644 case MESA_FORMAT_RGBA_ASTC_6x6
:
645 case MESA_FORMAT_RGBA_ASTC_8x5
:
646 case MESA_FORMAT_RGBA_ASTC_8x6
:
647 case MESA_FORMAT_RGBA_ASTC_8x8
:
648 case MESA_FORMAT_RGBA_ASTC_10x5
:
649 case MESA_FORMAT_RGBA_ASTC_10x6
:
650 case MESA_FORMAT_RGBA_ASTC_10x8
:
651 case MESA_FORMAT_RGBA_ASTC_10x10
:
652 case MESA_FORMAT_RGBA_ASTC_12x10
:
653 case MESA_FORMAT_RGBA_ASTC_12x12
:
654 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_4x4
:
655 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x4
:
656 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_5x5
:
657 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x5
:
658 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_6x6
:
659 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x5
:
660 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x6
:
661 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_8x8
:
662 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x5
:
663 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x6
:
664 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x8
:
665 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_10x10
:
666 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x10
:
667 case MESA_FORMAT_SRGB8_ALPHA8_ASTC_12x12
:
676 * If the given format is a compressed format, return a corresponding
677 * uncompressed format.
680 _mesa_get_uncompressed_format(mesa_format format
)
683 case MESA_FORMAT_RGB_FXT1
:
684 return MESA_FORMAT_BGR_UNORM8
;
685 case MESA_FORMAT_RGBA_FXT1
:
686 return MESA_FORMAT_A8B8G8R8_UNORM
;
687 case MESA_FORMAT_RGB_DXT1
:
688 case MESA_FORMAT_SRGB_DXT1
:
689 return MESA_FORMAT_BGR_UNORM8
;
690 case MESA_FORMAT_RGBA_DXT1
:
691 case MESA_FORMAT_SRGBA_DXT1
:
692 return MESA_FORMAT_A8B8G8R8_UNORM
;
693 case MESA_FORMAT_RGBA_DXT3
:
694 case MESA_FORMAT_SRGBA_DXT3
:
695 return MESA_FORMAT_A8B8G8R8_UNORM
;
696 case MESA_FORMAT_RGBA_DXT5
:
697 case MESA_FORMAT_SRGBA_DXT5
:
698 return MESA_FORMAT_A8B8G8R8_UNORM
;
699 case MESA_FORMAT_R_RGTC1_UNORM
:
700 return MESA_FORMAT_R_UNORM8
;
701 case MESA_FORMAT_R_RGTC1_SNORM
:
702 return MESA_FORMAT_R_SNORM8
;
703 case MESA_FORMAT_RG_RGTC2_UNORM
:
704 return MESA_FORMAT_R8G8_UNORM
;
705 case MESA_FORMAT_RG_RGTC2_SNORM
:
706 return MESA_FORMAT_R8G8_SNORM
;
707 case MESA_FORMAT_L_LATC1_UNORM
:
708 return MESA_FORMAT_L_UNORM8
;
709 case MESA_FORMAT_L_LATC1_SNORM
:
710 return MESA_FORMAT_L_SNORM8
;
711 case MESA_FORMAT_LA_LATC2_UNORM
:
712 return MESA_FORMAT_L8A8_UNORM
;
713 case MESA_FORMAT_LA_LATC2_SNORM
:
714 return MESA_FORMAT_L8A8_SNORM
;
715 case MESA_FORMAT_ETC1_RGB8
:
716 case MESA_FORMAT_ETC2_RGB8
:
717 case MESA_FORMAT_ETC2_SRGB8
:
718 case MESA_FORMAT_ATC_RGB
:
719 return MESA_FORMAT_BGR_UNORM8
;
720 case MESA_FORMAT_ETC2_RGBA8_EAC
:
721 case MESA_FORMAT_ETC2_SRGB8_ALPHA8_EAC
:
722 case MESA_FORMAT_ETC2_RGB8_PUNCHTHROUGH_ALPHA1
:
723 case MESA_FORMAT_ETC2_SRGB8_PUNCHTHROUGH_ALPHA1
:
724 case MESA_FORMAT_ATC_RGBA_EXPLICIT
:
725 case MESA_FORMAT_ATC_RGBA_INTERPOLATED
:
726 return MESA_FORMAT_A8B8G8R8_UNORM
;
727 case MESA_FORMAT_ETC2_R11_EAC
:
728 case MESA_FORMAT_ETC2_SIGNED_R11_EAC
:
729 return MESA_FORMAT_R_UNORM16
;
730 case MESA_FORMAT_ETC2_RG11_EAC
:
731 case MESA_FORMAT_ETC2_SIGNED_RG11_EAC
:
732 return MESA_FORMAT_R16G16_UNORM
;
733 case MESA_FORMAT_BPTC_RGBA_UNORM
:
734 case MESA_FORMAT_BPTC_SRGB_ALPHA_UNORM
:
735 return MESA_FORMAT_A8B8G8R8_UNORM
;
736 case MESA_FORMAT_BPTC_RGB_UNSIGNED_FLOAT
:
737 case MESA_FORMAT_BPTC_RGB_SIGNED_FLOAT
:
738 return MESA_FORMAT_RGB_FLOAT32
;
740 assert(!_mesa_is_format_compressed(format
));
747 _mesa_format_num_components(mesa_format format
)
749 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
750 return ((info
->RedBits
> 0) +
751 (info
->GreenBits
> 0) +
752 (info
->BlueBits
> 0) +
753 (info
->AlphaBits
> 0) +
754 (info
->LuminanceBits
> 0) +
755 (info
->IntensityBits
> 0) +
756 (info
->DepthBits
> 0) +
757 (info
->StencilBits
> 0));
762 * Returns true if a color format has data stored in the R/G/B/A channels,
763 * given an index from 0 to 3.
766 _mesa_format_has_color_component(mesa_format format
, int component
)
768 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
770 assert(info
->BaseFormat
!= GL_DEPTH_COMPONENT
&&
771 info
->BaseFormat
!= GL_DEPTH_STENCIL
&&
772 info
->BaseFormat
!= GL_STENCIL_INDEX
);
776 return (info
->RedBits
+ info
->IntensityBits
+ info
->LuminanceBits
) > 0;
778 return (info
->GreenBits
+ info
->IntensityBits
+ info
->LuminanceBits
) > 0;
780 return (info
->BlueBits
+ info
->IntensityBits
+ info
->LuminanceBits
) > 0;
782 return (info
->AlphaBits
+ info
->IntensityBits
) > 0;
784 assert(!"Invalid color component: must be 0..3");
791 * Return number of bytes needed to store an image of the given size
792 * in the given format.
795 _mesa_format_image_size(mesa_format format
, int width
,
796 int height
, int depth
)
798 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
800 /* Strictly speaking, a conditional isn't needed here */
801 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1 || info
->BlockDepth
> 1) {
802 /* compressed format (2D only for now) */
803 const uint32_t bw
= info
->BlockWidth
;
804 const uint32_t bh
= info
->BlockHeight
;
805 const uint32_t bd
= info
->BlockDepth
;
806 const uint32_t wblocks
= (width
+ bw
- 1) / bw
;
807 const uint32_t hblocks
= (height
+ bh
- 1) / bh
;
808 const uint32_t dblocks
= (depth
+ bd
- 1) / bd
;
809 sz
= wblocks
* hblocks
* dblocks
* info
->BytesPerBlock
;
812 sz
= width
* height
* depth
* info
->BytesPerBlock
;
819 * Same as _mesa_format_image_size() but returns a 64-bit value to
820 * accommodate very large textures.
823 _mesa_format_image_size64(mesa_format format
, int width
,
824 int height
, int depth
)
826 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
828 /* Strictly speaking, a conditional isn't needed here */
829 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1 || info
->BlockDepth
> 1) {
830 /* compressed format (2D only for now) */
831 const uint64_t bw
= info
->BlockWidth
;
832 const uint64_t bh
= info
->BlockHeight
;
833 const uint64_t bd
= info
->BlockDepth
;
834 const uint64_t wblocks
= (width
+ bw
- 1) / bw
;
835 const uint64_t hblocks
= (height
+ bh
- 1) / bh
;
836 const uint64_t dblocks
= (depth
+ bd
- 1) / bd
;
837 sz
= wblocks
* hblocks
* dblocks
* info
->BytesPerBlock
;
840 sz
= ((uint64_t) width
* (uint64_t) height
*
841 (uint64_t) depth
* info
->BytesPerBlock
);
849 _mesa_format_row_stride(mesa_format format
, int width
)
851 const struct mesa_format_info
*info
= _mesa_get_format_info(format
);
852 /* Strictly speaking, a conditional isn't needed here */
853 if (info
->BlockWidth
> 1 || info
->BlockHeight
> 1) {
854 /* compressed format */
855 const uint32_t bw
= info
->BlockWidth
;
856 const uint32_t wblocks
= (width
+ bw
- 1) / bw
;
857 const int32_t stride
= wblocks
* info
->BytesPerBlock
;
861 const int32_t stride
= width
* info
->BytesPerBlock
;
869 * Return datatype and number of components per texel for the given
870 * uncompressed mesa_format. Only used for mipmap generation code.
873 _mesa_uncompressed_format_to_type_and_comps(mesa_format format
,
874 GLenum
*datatype
, GLuint
*comps
)
877 case MESA_FORMAT_A8B8G8R8_UNORM
:
878 case MESA_FORMAT_R8G8B8A8_UNORM
:
879 case MESA_FORMAT_B8G8R8A8_UNORM
:
880 case MESA_FORMAT_A8R8G8B8_UNORM
:
881 case MESA_FORMAT_X8B8G8R8_UNORM
:
882 case MESA_FORMAT_R8G8B8X8_UNORM
:
883 case MESA_FORMAT_B8G8R8X8_UNORM
:
884 case MESA_FORMAT_X8R8G8B8_UNORM
:
885 case MESA_FORMAT_A8B8G8R8_UINT
:
886 case MESA_FORMAT_R8G8B8A8_UINT
:
887 case MESA_FORMAT_B8G8R8A8_UINT
:
888 case MESA_FORMAT_A8R8G8B8_UINT
:
889 *datatype
= GL_UNSIGNED_BYTE
;
892 case MESA_FORMAT_BGR_UNORM8
:
893 case MESA_FORMAT_RGB_UNORM8
:
894 *datatype
= GL_UNSIGNED_BYTE
;
897 case MESA_FORMAT_B5G6R5_UNORM
:
898 case MESA_FORMAT_R5G6B5_UNORM
:
899 case MESA_FORMAT_B5G6R5_UINT
:
900 case MESA_FORMAT_R5G6B5_UINT
:
901 *datatype
= GL_UNSIGNED_SHORT_5_6_5
;
905 case MESA_FORMAT_B4G4R4A4_UNORM
:
906 case MESA_FORMAT_A4R4G4B4_UNORM
:
907 case MESA_FORMAT_B4G4R4X4_UNORM
:
908 case MESA_FORMAT_B4G4R4A4_UINT
:
909 case MESA_FORMAT_A4R4G4B4_UINT
:
910 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
914 case MESA_FORMAT_B5G5R5A1_UNORM
:
915 case MESA_FORMAT_A1R5G5B5_UNORM
:
916 case MESA_FORMAT_B5G5R5X1_UNORM
:
917 case MESA_FORMAT_B5G5R5A1_UINT
:
918 case MESA_FORMAT_A1R5G5B5_UINT
:
919 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
923 case MESA_FORMAT_B10G10R10A2_UNORM
:
924 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
928 case MESA_FORMAT_A1B5G5R5_UNORM
:
929 case MESA_FORMAT_A1B5G5R5_UINT
:
930 case MESA_FORMAT_X1B5G5R5_UNORM
:
931 *datatype
= GL_UNSIGNED_SHORT_5_5_5_1
;
935 case MESA_FORMAT_L4A4_UNORM
:
936 *datatype
= MESA_UNSIGNED_BYTE_4_4
;
940 case MESA_FORMAT_L8A8_UNORM
:
941 case MESA_FORMAT_A8L8_UNORM
:
942 case MESA_FORMAT_R8G8_UNORM
:
943 case MESA_FORMAT_G8R8_UNORM
:
944 *datatype
= GL_UNSIGNED_BYTE
;
948 case MESA_FORMAT_L16A16_UNORM
:
949 case MESA_FORMAT_A16L16_UNORM
:
950 case MESA_FORMAT_R16G16_UNORM
:
951 case MESA_FORMAT_G16R16_UNORM
:
952 *datatype
= GL_UNSIGNED_SHORT
;
956 case MESA_FORMAT_R_UNORM16
:
957 case MESA_FORMAT_A_UNORM16
:
958 case MESA_FORMAT_L_UNORM16
:
959 case MESA_FORMAT_I_UNORM16
:
960 *datatype
= GL_UNSIGNED_SHORT
;
964 case MESA_FORMAT_R3G3B2_UNORM
:
965 case MESA_FORMAT_R3G3B2_UINT
:
966 *datatype
= GL_UNSIGNED_BYTE_2_3_3_REV
;
969 case MESA_FORMAT_A4B4G4R4_UNORM
:
970 case MESA_FORMAT_A4B4G4R4_UINT
:
971 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
975 case MESA_FORMAT_R4G4B4A4_UNORM
:
976 case MESA_FORMAT_R4G4B4A4_UINT
:
977 *datatype
= GL_UNSIGNED_SHORT_4_4_4_4
;
980 case MESA_FORMAT_R5G5B5A1_UNORM
:
981 case MESA_FORMAT_R5G5B5A1_UINT
:
982 *datatype
= GL_UNSIGNED_SHORT_1_5_5_5_REV
;
985 case MESA_FORMAT_A2B10G10R10_UNORM
:
986 case MESA_FORMAT_A2B10G10R10_UINT
:
987 *datatype
= GL_UNSIGNED_INT_10_10_10_2
;
990 case MESA_FORMAT_A2R10G10B10_UNORM
:
991 case MESA_FORMAT_A2R10G10B10_UINT
:
992 *datatype
= GL_UNSIGNED_INT_10_10_10_2
;
996 case MESA_FORMAT_B2G3R3_UNORM
:
997 case MESA_FORMAT_B2G3R3_UINT
:
998 *datatype
= GL_UNSIGNED_BYTE_3_3_2
;
1002 case MESA_FORMAT_A_UNORM8
:
1003 case MESA_FORMAT_L_UNORM8
:
1004 case MESA_FORMAT_I_UNORM8
:
1005 case MESA_FORMAT_R_UNORM8
:
1006 case MESA_FORMAT_S_UINT8
:
1007 *datatype
= GL_UNSIGNED_BYTE
;
1011 case MESA_FORMAT_YCBCR
:
1012 case MESA_FORMAT_YCBCR_REV
:
1013 *datatype
= GL_UNSIGNED_SHORT
;
1017 case MESA_FORMAT_S8_UINT_Z24_UNORM
:
1018 *datatype
= GL_UNSIGNED_INT_24_8_MESA
;
1022 case MESA_FORMAT_Z24_UNORM_S8_UINT
:
1023 *datatype
= GL_UNSIGNED_INT_8_24_REV_MESA
;
1027 case MESA_FORMAT_Z_UNORM16
:
1028 *datatype
= GL_UNSIGNED_SHORT
;
1032 case MESA_FORMAT_Z24_UNORM_X8_UINT
:
1033 *datatype
= GL_UNSIGNED_INT
;
1037 case MESA_FORMAT_X8_UINT_Z24_UNORM
:
1038 *datatype
= GL_UNSIGNED_INT
;
1042 case MESA_FORMAT_Z_UNORM32
:
1043 *datatype
= GL_UNSIGNED_INT
;
1047 case MESA_FORMAT_Z_FLOAT32
:
1048 *datatype
= GL_FLOAT
;
1052 case MESA_FORMAT_Z32_FLOAT_S8X24_UINT
:
1053 *datatype
= GL_FLOAT_32_UNSIGNED_INT_24_8_REV
;
1057 case MESA_FORMAT_R_SNORM8
:
1058 case MESA_FORMAT_A_SNORM8
:
1059 case MESA_FORMAT_L_SNORM8
:
1060 case MESA_FORMAT_I_SNORM8
:
1061 *datatype
= GL_BYTE
;
1064 case MESA_FORMAT_R8G8_SNORM
:
1065 case MESA_FORMAT_L8A8_SNORM
:
1066 case MESA_FORMAT_A8L8_SNORM
:
1067 *datatype
= GL_BYTE
;
1070 case MESA_FORMAT_A8B8G8R8_SNORM
:
1071 case MESA_FORMAT_R8G8B8A8_SNORM
:
1072 case MESA_FORMAT_X8B8G8R8_SNORM
:
1073 *datatype
= GL_BYTE
;
1077 case MESA_FORMAT_RGBA_UNORM16
:
1078 *datatype
= GL_UNSIGNED_SHORT
;
1082 case MESA_FORMAT_R_SNORM16
:
1083 case MESA_FORMAT_A_SNORM16
:
1084 case MESA_FORMAT_L_SNORM16
:
1085 case MESA_FORMAT_I_SNORM16
:
1086 *datatype
= GL_SHORT
;
1089 case MESA_FORMAT_R16G16_SNORM
:
1090 case MESA_FORMAT_LA_SNORM16
:
1091 *datatype
= GL_SHORT
;
1094 case MESA_FORMAT_RGB_SNORM16
:
1095 *datatype
= GL_SHORT
;
1098 case MESA_FORMAT_RGBA_SNORM16
:
1099 *datatype
= GL_SHORT
;
1103 case MESA_FORMAT_BGR_SRGB8
:
1104 *datatype
= GL_UNSIGNED_BYTE
;
1107 case MESA_FORMAT_A8B8G8R8_SRGB
:
1108 case MESA_FORMAT_B8G8R8A8_SRGB
:
1109 case MESA_FORMAT_A8R8G8B8_SRGB
:
1110 case MESA_FORMAT_R8G8B8A8_SRGB
:
1111 *datatype
= GL_UNSIGNED_BYTE
;
1114 case MESA_FORMAT_L_SRGB8
:
1115 case MESA_FORMAT_R_SRGB8
:
1116 *datatype
= GL_UNSIGNED_BYTE
;
1119 case MESA_FORMAT_L8A8_SRGB
:
1120 case MESA_FORMAT_A8L8_SRGB
:
1121 *datatype
= GL_UNSIGNED_BYTE
;
1125 case MESA_FORMAT_RGBA_FLOAT32
:
1126 *datatype
= GL_FLOAT
;
1129 case MESA_FORMAT_RGBA_FLOAT16
:
1130 *datatype
= GL_HALF_FLOAT_ARB
;
1133 case MESA_FORMAT_RGB_FLOAT32
:
1134 *datatype
= GL_FLOAT
;
1137 case MESA_FORMAT_RGB_FLOAT16
:
1138 *datatype
= GL_HALF_FLOAT_ARB
;
1141 case MESA_FORMAT_LA_FLOAT32
:
1142 case MESA_FORMAT_RG_FLOAT32
:
1143 *datatype
= GL_FLOAT
;
1146 case MESA_FORMAT_LA_FLOAT16
:
1147 case MESA_FORMAT_RG_FLOAT16
:
1148 *datatype
= GL_HALF_FLOAT_ARB
;
1151 case MESA_FORMAT_A_FLOAT32
:
1152 case MESA_FORMAT_L_FLOAT32
:
1153 case MESA_FORMAT_I_FLOAT32
:
1154 case MESA_FORMAT_R_FLOAT32
:
1155 *datatype
= GL_FLOAT
;
1158 case MESA_FORMAT_A_FLOAT16
:
1159 case MESA_FORMAT_L_FLOAT16
:
1160 case MESA_FORMAT_I_FLOAT16
:
1161 case MESA_FORMAT_R_FLOAT16
:
1162 *datatype
= GL_HALF_FLOAT_ARB
;
1166 case MESA_FORMAT_A_UINT8
:
1167 case MESA_FORMAT_L_UINT8
:
1168 case MESA_FORMAT_I_UINT8
:
1169 *datatype
= GL_UNSIGNED_BYTE
;
1172 case MESA_FORMAT_LA_UINT8
:
1173 *datatype
= GL_UNSIGNED_BYTE
;
1177 case MESA_FORMAT_A_UINT16
:
1178 case MESA_FORMAT_L_UINT16
:
1179 case MESA_FORMAT_I_UINT16
:
1180 *datatype
= GL_UNSIGNED_SHORT
;
1183 case MESA_FORMAT_LA_UINT16
:
1184 *datatype
= GL_UNSIGNED_SHORT
;
1187 case MESA_FORMAT_A_UINT32
:
1188 case MESA_FORMAT_L_UINT32
:
1189 case MESA_FORMAT_I_UINT32
:
1190 *datatype
= GL_UNSIGNED_INT
;
1193 case MESA_FORMAT_LA_UINT32
:
1194 *datatype
= GL_UNSIGNED_INT
;
1197 case MESA_FORMAT_A_SINT8
:
1198 case MESA_FORMAT_L_SINT8
:
1199 case MESA_FORMAT_I_SINT8
:
1200 *datatype
= GL_BYTE
;
1203 case MESA_FORMAT_LA_SINT8
:
1204 *datatype
= GL_BYTE
;
1208 case MESA_FORMAT_A_SINT16
:
1209 case MESA_FORMAT_L_SINT16
:
1210 case MESA_FORMAT_I_SINT16
:
1211 *datatype
= GL_SHORT
;
1214 case MESA_FORMAT_LA_SINT16
:
1215 *datatype
= GL_SHORT
;
1219 case MESA_FORMAT_A_SINT32
:
1220 case MESA_FORMAT_L_SINT32
:
1221 case MESA_FORMAT_I_SINT32
:
1225 case MESA_FORMAT_LA_SINT32
:
1230 case MESA_FORMAT_R_SINT8
:
1231 *datatype
= GL_BYTE
;
1234 case MESA_FORMAT_RG_SINT8
:
1235 *datatype
= GL_BYTE
;
1238 case MESA_FORMAT_RGB_SINT8
:
1239 *datatype
= GL_BYTE
;
1242 case MESA_FORMAT_RGBA_SINT8
:
1243 *datatype
= GL_BYTE
;
1246 case MESA_FORMAT_R_SINT16
:
1247 *datatype
= GL_SHORT
;
1250 case MESA_FORMAT_RG_SINT16
:
1251 *datatype
= GL_SHORT
;
1254 case MESA_FORMAT_RGB_SINT16
:
1255 *datatype
= GL_SHORT
;
1258 case MESA_FORMAT_RGBA_SINT16
:
1259 *datatype
= GL_SHORT
;
1262 case MESA_FORMAT_R_SINT32
:
1266 case MESA_FORMAT_RG_SINT32
:
1270 case MESA_FORMAT_RGB_SINT32
:
1274 case MESA_FORMAT_RGBA_SINT32
:
1280 * \name Non-normalized unsigned integer formats.
1282 case MESA_FORMAT_R_UINT8
:
1283 *datatype
= GL_UNSIGNED_BYTE
;
1286 case MESA_FORMAT_RG_UINT8
:
1287 *datatype
= GL_UNSIGNED_BYTE
;
1290 case MESA_FORMAT_RGB_UINT8
:
1291 *datatype
= GL_UNSIGNED_BYTE
;
1294 case MESA_FORMAT_RGBA_UINT8
:
1295 *datatype
= GL_UNSIGNED_BYTE
;
1298 case MESA_FORMAT_R_UINT16
:
1299 *datatype
= GL_UNSIGNED_SHORT
;
1302 case MESA_FORMAT_RG_UINT16
:
1303 *datatype
= GL_UNSIGNED_SHORT
;
1306 case MESA_FORMAT_RGB_UINT16
:
1307 *datatype
= GL_UNSIGNED_SHORT
;
1310 case MESA_FORMAT_RGBA_UINT16
:
1311 *datatype
= GL_UNSIGNED_SHORT
;
1314 case MESA_FORMAT_R_UINT32
:
1315 *datatype
= GL_UNSIGNED_INT
;
1318 case MESA_FORMAT_RG_UINT32
:
1319 *datatype
= GL_UNSIGNED_INT
;
1322 case MESA_FORMAT_RGB_UINT32
:
1323 *datatype
= GL_UNSIGNED_INT
;
1326 case MESA_FORMAT_RGBA_UINT32
:
1327 *datatype
= GL_UNSIGNED_INT
;
1331 case MESA_FORMAT_R9G9B9E5_FLOAT
:
1332 *datatype
= GL_UNSIGNED_INT_5_9_9_9_REV
;
1336 case MESA_FORMAT_R11G11B10_FLOAT
:
1337 *datatype
= GL_UNSIGNED_INT_10F_11F_11F_REV
;
1341 case MESA_FORMAT_B10G10R10A2_UINT
:
1342 case MESA_FORMAT_R10G10B10A2_UINT
:
1343 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
1347 case MESA_FORMAT_R8G8B8X8_SRGB
:
1348 case MESA_FORMAT_X8B8G8R8_SRGB
:
1349 case MESA_FORMAT_RGBX_UINT8
:
1350 *datatype
= GL_UNSIGNED_BYTE
;
1354 case MESA_FORMAT_R8G8B8X8_SNORM
:
1355 case MESA_FORMAT_RGBX_SINT8
:
1356 *datatype
= GL_BYTE
;
1360 case MESA_FORMAT_B10G10R10X2_UNORM
:
1361 case MESA_FORMAT_R10G10B10X2_UNORM
:
1362 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
1366 case MESA_FORMAT_RGBX_UNORM16
:
1367 case MESA_FORMAT_RGBX_UINT16
:
1368 *datatype
= GL_UNSIGNED_SHORT
;
1372 case MESA_FORMAT_RGBX_SNORM16
:
1373 case MESA_FORMAT_RGBX_SINT16
:
1374 *datatype
= GL_SHORT
;
1378 case MESA_FORMAT_RGBX_FLOAT16
:
1379 *datatype
= GL_HALF_FLOAT
;
1383 case MESA_FORMAT_RGBX_FLOAT32
:
1384 *datatype
= GL_FLOAT
;
1388 case MESA_FORMAT_RGBX_UINT32
:
1389 *datatype
= GL_UNSIGNED_INT
;
1393 case MESA_FORMAT_RGBX_SINT32
:
1398 case MESA_FORMAT_R10G10B10A2_UNORM
:
1399 *datatype
= GL_UNSIGNED_INT_2_10_10_10_REV
;
1403 case MESA_FORMAT_G8R8_SNORM
:
1404 *datatype
= GL_BYTE
;
1408 case MESA_FORMAT_G16R16_SNORM
:
1409 *datatype
= GL_SHORT
;
1413 case MESA_FORMAT_B8G8R8X8_SRGB
:
1414 case MESA_FORMAT_X8R8G8B8_SRGB
:
1415 *datatype
= GL_UNSIGNED_BYTE
;
1419 case MESA_FORMAT_COUNT
:
1423 /* Warn if any formats are not handled */
1424 _mesa_problem(NULL
, "bad format %s in _mesa_uncompressed_format_to_type_and_comps",
1425 _mesa_get_format_name(format
));
1426 assert(format
== MESA_FORMAT_NONE
||
1427 _mesa_is_format_compressed(format
));
1434 * Check if a mesa_format exactly matches a GL format/type combination
1435 * such that we can use memcpy() from one to the other.
1436 * \param mesa_format a MESA_FORMAT_x value
1437 * \param format the user-specified image format
1438 * \param type the user-specified image datatype
1439 * \param swapBytes typically the current pixel pack/unpack byteswap state
1440 * \param[out] error GL_NO_ERROR if format is an expected input.
1441 * GL_INVALID_ENUM if format is an unexpected input.
1442 * \return true if the formats match, false otherwise.
1445 _mesa_format_matches_format_and_type(mesa_format mesa_format
,
1446 GLenum format
, GLenum type
,
1447 bool swapBytes
, GLenum
*error
)
1449 const bool littleEndian
= _mesa_little_endian();
1451 *error
= GL_NO_ERROR
;
1453 /* Note: When reading a GL format/type combination, the format lists channel
1454 * assignments from most significant channel in the type to least
1455 * significant. A type with _REV indicates that the assignments are
1456 * swapped, so they are listed from least significant to most significant.
1458 * Compressed formats will fall through and return false.
1460 * For sanity, please keep this switch statement ordered the same as the
1461 * enums in formats.h.
1464 switch (mesa_format
) {
1466 case MESA_FORMAT_NONE
:
1467 case MESA_FORMAT_COUNT
:
1470 case MESA_FORMAT_A8B8G8R8_UNORM
:
1471 case MESA_FORMAT_A8B8G8R8_SRGB
:
1472 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& !swapBytes
)
1475 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&& swapBytes
)
1478 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
1481 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
1485 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8
1489 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
1494 case MESA_FORMAT_R8G8B8A8_UNORM
:
1495 case MESA_FORMAT_R8G8B8A8_SRGB
:
1496 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
1500 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
1503 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
1506 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8
&&
1510 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
1514 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
1519 case MESA_FORMAT_B8G8R8A8_UNORM
:
1520 case MESA_FORMAT_B8G8R8A8_SRGB
:
1521 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
1525 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
1528 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
)
1533 case MESA_FORMAT_A8R8G8B8_UNORM
:
1534 case MESA_FORMAT_A8R8G8B8_SRGB
:
1535 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& !swapBytes
)
1538 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
1542 if (format
== GL_BGRA
&& type
== GL_UNSIGNED_BYTE
&& !littleEndian
)
1547 case MESA_FORMAT_X8B8G8R8_UNORM
:
1548 case MESA_FORMAT_R8G8B8X8_UNORM
:
1551 case MESA_FORMAT_B8G8R8X8_UNORM
:
1552 case MESA_FORMAT_X8R8G8B8_UNORM
:
1555 case MESA_FORMAT_BGR_UNORM8
:
1556 case MESA_FORMAT_BGR_SRGB8
:
1557 return format
== GL_BGR
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
1559 case MESA_FORMAT_RGB_UNORM8
:
1560 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
1562 case MESA_FORMAT_B5G6R5_UNORM
:
1563 return ((format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5
) ||
1564 (format
== GL_BGR
&& type
== GL_UNSIGNED_SHORT_5_6_5_REV
)) &&
1567 case MESA_FORMAT_R5G6B5_UNORM
:
1568 return ((format
== GL_BGR
&& type
== GL_UNSIGNED_SHORT_5_6_5
) ||
1569 (format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_6_5_REV
)) &&
1572 case MESA_FORMAT_B4G4R4A4_UNORM
:
1573 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&&
1576 case MESA_FORMAT_A4R4G4B4_UNORM
:
1579 case MESA_FORMAT_A1B5G5R5_UNORM
:
1580 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
1583 case MESA_FORMAT_X1B5G5R5_UNORM
:
1584 return format
== GL_RGB
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
1587 case MESA_FORMAT_B5G5R5A1_UNORM
:
1588 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
&&
1591 case MESA_FORMAT_A1R5G5B5_UNORM
:
1592 return format
== GL_BGRA
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
1595 case MESA_FORMAT_L4A4_UNORM
:
1597 case MESA_FORMAT_L8A8_UNORM
:
1598 case MESA_FORMAT_L8A8_SRGB
:
1599 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
1600 case MESA_FORMAT_A8L8_UNORM
:
1601 case MESA_FORMAT_A8L8_SRGB
:
1604 case MESA_FORMAT_L16A16_UNORM
:
1605 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
&& !swapBytes
;
1606 case MESA_FORMAT_A16L16_UNORM
:
1609 case MESA_FORMAT_B2G3R3_UNORM
:
1610 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
1612 case MESA_FORMAT_R3G3B2_UNORM
:
1613 return format
== GL_RGB
&& type
== GL_UNSIGNED_BYTE_2_3_3_REV
;
1615 case MESA_FORMAT_A4B4G4R4_UNORM
:
1616 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4
&& !swapBytes
)
1619 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&& !swapBytes
)
1624 case MESA_FORMAT_R4G4B4A4_UNORM
:
1625 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_SHORT_4_4_4_4
&& !swapBytes
)
1628 if (format
== GL_ABGR_EXT
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&& swapBytes
)
1631 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&& !swapBytes
)
1634 if (format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_4_4_4_4
&& swapBytes
)
1639 case MESA_FORMAT_R5G5B5A1_UNORM
:
1640 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
1642 case MESA_FORMAT_A2B10G10R10_UNORM
:
1643 return format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_10_10_10_2
;
1645 case MESA_FORMAT_A2B10G10R10_UINT
:
1646 return format
== GL_RGBA_INTEGER_EXT
&& type
== GL_UNSIGNED_INT_10_10_10_2
;
1648 case MESA_FORMAT_A2R10G10B10_UNORM
:
1649 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_10_10_10_2
;
1651 case MESA_FORMAT_A2R10G10B10_UINT
:
1652 return format
== GL_BGRA_INTEGER_EXT
&& type
== GL_UNSIGNED_INT_10_10_10_2
;
1654 case MESA_FORMAT_A_UNORM8
:
1655 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_BYTE
;
1656 case MESA_FORMAT_A_UNORM16
:
1657 return format
== GL_ALPHA
&& type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1658 case MESA_FORMAT_L_UNORM8
:
1659 case MESA_FORMAT_L_SRGB8
:
1660 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_BYTE
;
1661 case MESA_FORMAT_L_UNORM16
:
1662 return format
== GL_LUMINANCE
&& type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1663 case MESA_FORMAT_I_UNORM8
:
1664 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
1665 case MESA_FORMAT_I_UNORM16
:
1666 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1668 case MESA_FORMAT_YCBCR
:
1669 return format
== GL_YCBCR_MESA
&&
1670 ((type
== GL_UNSIGNED_SHORT_8_8_MESA
&& littleEndian
!= swapBytes
) ||
1671 (type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
&& littleEndian
== swapBytes
));
1672 case MESA_FORMAT_YCBCR_REV
:
1673 return format
== GL_YCBCR_MESA
&&
1674 ((type
== GL_UNSIGNED_SHORT_8_8_MESA
&& littleEndian
== swapBytes
) ||
1675 (type
== GL_UNSIGNED_SHORT_8_8_REV_MESA
&& littleEndian
!= swapBytes
));
1677 case MESA_FORMAT_R_UNORM8
:
1678 case MESA_FORMAT_R_SRGB8
:
1679 return format
== GL_RED
&& type
== GL_UNSIGNED_BYTE
;
1680 case MESA_FORMAT_R8G8_UNORM
:
1681 return format
== GL_RG
&& type
== GL_UNSIGNED_BYTE
&& littleEndian
;
1682 case MESA_FORMAT_G8R8_UNORM
:
1685 case MESA_FORMAT_R_UNORM16
:
1686 return format
== GL_RED
&& type
== GL_UNSIGNED_SHORT
&&
1688 case MESA_FORMAT_R16G16_UNORM
:
1689 return format
== GL_RG
&& type
== GL_UNSIGNED_SHORT
&& littleEndian
&&
1691 case MESA_FORMAT_G16R16_UNORM
:
1694 case MESA_FORMAT_B10G10R10A2_UNORM
:
1695 return format
== GL_BGRA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
1698 case MESA_FORMAT_S8_UINT_Z24_UNORM
:
1699 return format
== GL_DEPTH_STENCIL
&& type
== GL_UNSIGNED_INT_24_8
&&
1701 case MESA_FORMAT_X8_UINT_Z24_UNORM
:
1702 case MESA_FORMAT_Z24_UNORM_S8_UINT
:
1705 case MESA_FORMAT_Z_UNORM16
:
1706 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_SHORT
&&
1709 case MESA_FORMAT_Z24_UNORM_X8_UINT
:
1712 case MESA_FORMAT_Z_UNORM32
:
1713 return format
== GL_DEPTH_COMPONENT
&& type
== GL_UNSIGNED_INT
&&
1716 case MESA_FORMAT_S_UINT8
:
1717 return format
== GL_STENCIL_INDEX
&& type
== GL_UNSIGNED_BYTE
;
1719 case MESA_FORMAT_RGBA_FLOAT32
:
1720 return format
== GL_RGBA
&& type
== GL_FLOAT
&& !swapBytes
;
1721 case MESA_FORMAT_RGBA_FLOAT16
:
1722 return format
== GL_RGBA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1724 case MESA_FORMAT_RGB_FLOAT32
:
1725 return format
== GL_RGB
&& type
== GL_FLOAT
&& !swapBytes
;
1726 case MESA_FORMAT_RGB_FLOAT16
:
1727 return format
== GL_RGB
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1729 case MESA_FORMAT_A_FLOAT32
:
1730 return format
== GL_ALPHA
&& type
== GL_FLOAT
&& !swapBytes
;
1731 case MESA_FORMAT_A_FLOAT16
:
1732 return format
== GL_ALPHA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1734 case MESA_FORMAT_L_FLOAT32
:
1735 return format
== GL_LUMINANCE
&& type
== GL_FLOAT
&& !swapBytes
;
1736 case MESA_FORMAT_L_FLOAT16
:
1737 return format
== GL_LUMINANCE
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1739 case MESA_FORMAT_LA_FLOAT32
:
1740 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_FLOAT
&& !swapBytes
;
1741 case MESA_FORMAT_LA_FLOAT16
:
1742 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1744 case MESA_FORMAT_I_FLOAT32
:
1745 return format
== GL_RED
&& type
== GL_FLOAT
&& !swapBytes
;
1746 case MESA_FORMAT_I_FLOAT16
:
1747 return format
== GL_RED
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1749 case MESA_FORMAT_R_FLOAT32
:
1750 return format
== GL_RED
&& type
== GL_FLOAT
&& !swapBytes
;
1751 case MESA_FORMAT_R_FLOAT16
:
1752 return format
== GL_RED
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1754 case MESA_FORMAT_RG_FLOAT32
:
1755 return format
== GL_RG
&& type
== GL_FLOAT
&& !swapBytes
;
1756 case MESA_FORMAT_RG_FLOAT16
:
1757 return format
== GL_RG
&& type
== GL_HALF_FLOAT
&& !swapBytes
;
1759 case MESA_FORMAT_A_UINT8
:
1760 return format
== GL_ALPHA_INTEGER
&& type
== GL_UNSIGNED_BYTE
;
1761 case MESA_FORMAT_A_UINT16
:
1762 return format
== GL_ALPHA_INTEGER
&& type
== GL_UNSIGNED_SHORT
&&
1764 case MESA_FORMAT_A_UINT32
:
1765 return format
== GL_ALPHA_INTEGER
&& type
== GL_UNSIGNED_INT
&&
1767 case MESA_FORMAT_A_SINT8
:
1768 return format
== GL_ALPHA_INTEGER
&& type
== GL_BYTE
;
1769 case MESA_FORMAT_A_SINT16
:
1770 return format
== GL_ALPHA_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1771 case MESA_FORMAT_A_SINT32
:
1772 return format
== GL_ALPHA_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1774 case MESA_FORMAT_I_UINT8
:
1775 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_BYTE
;
1776 case MESA_FORMAT_I_UINT16
:
1777 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1778 case MESA_FORMAT_I_UINT32
:
1779 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_INT
&& !swapBytes
;
1780 case MESA_FORMAT_I_SINT8
:
1781 return format
== GL_RED_INTEGER
&& type
== GL_BYTE
;
1782 case MESA_FORMAT_I_SINT16
:
1783 return format
== GL_RED_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1784 case MESA_FORMAT_I_SINT32
:
1785 return format
== GL_RED_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1787 case MESA_FORMAT_L_UINT8
:
1788 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_UNSIGNED_BYTE
;
1789 case MESA_FORMAT_L_UINT16
:
1790 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_UNSIGNED_SHORT
&&
1792 case MESA_FORMAT_L_UINT32
:
1793 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_UNSIGNED_INT
&&
1795 case MESA_FORMAT_L_SINT8
:
1796 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_BYTE
;
1797 case MESA_FORMAT_L_SINT16
:
1798 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_SHORT
&&
1800 case MESA_FORMAT_L_SINT32
:
1801 return format
== GL_LUMINANCE_INTEGER_EXT
&& type
== GL_INT
&& !swapBytes
;
1803 case MESA_FORMAT_LA_UINT8
:
1804 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&&
1805 type
== GL_UNSIGNED_BYTE
&& !swapBytes
;
1806 case MESA_FORMAT_LA_UINT16
:
1807 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&&
1808 type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1809 case MESA_FORMAT_LA_UINT32
:
1810 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&&
1811 type
== GL_UNSIGNED_INT
&& !swapBytes
;
1812 case MESA_FORMAT_LA_SINT8
:
1813 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&& type
== GL_BYTE
&&
1815 case MESA_FORMAT_LA_SINT16
:
1816 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&& type
== GL_SHORT
&&
1818 case MESA_FORMAT_LA_SINT32
:
1819 return format
== GL_LUMINANCE_ALPHA_INTEGER_EXT
&& type
== GL_INT
&&
1822 case MESA_FORMAT_R_SINT8
:
1823 return format
== GL_RED_INTEGER
&& type
== GL_BYTE
;
1824 case MESA_FORMAT_RG_SINT8
:
1825 return format
== GL_RG_INTEGER
&& type
== GL_BYTE
&& !swapBytes
;
1826 case MESA_FORMAT_RGB_SINT8
:
1827 return format
== GL_RGB_INTEGER
&& type
== GL_BYTE
&& !swapBytes
;
1828 case MESA_FORMAT_RGBA_SINT8
:
1829 return format
== GL_RGBA_INTEGER
&& type
== GL_BYTE
&& !swapBytes
;
1830 case MESA_FORMAT_R_SINT16
:
1831 return format
== GL_RED_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1832 case MESA_FORMAT_RG_SINT16
:
1833 return format
== GL_RG_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1834 case MESA_FORMAT_RGB_SINT16
:
1835 return format
== GL_RGB_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1836 case MESA_FORMAT_RGBA_SINT16
:
1837 return format
== GL_RGBA_INTEGER
&& type
== GL_SHORT
&& !swapBytes
;
1838 case MESA_FORMAT_R_SINT32
:
1839 return format
== GL_RED_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1840 case MESA_FORMAT_RG_SINT32
:
1841 return format
== GL_RG_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1842 case MESA_FORMAT_RGB_SINT32
:
1843 return format
== GL_RGB_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1844 case MESA_FORMAT_RGBA_SINT32
:
1845 return format
== GL_RGBA_INTEGER
&& type
== GL_INT
&& !swapBytes
;
1847 case MESA_FORMAT_R_UINT8
:
1848 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_BYTE
;
1849 case MESA_FORMAT_RG_UINT8
:
1850 return format
== GL_RG_INTEGER
&& type
== GL_UNSIGNED_BYTE
&& !swapBytes
;
1851 case MESA_FORMAT_RGB_UINT8
:
1852 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_BYTE
&& !swapBytes
;
1853 case MESA_FORMAT_RGBA_UINT8
:
1854 return format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_BYTE
&&
1856 case MESA_FORMAT_R_UINT16
:
1857 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_SHORT
&&
1859 case MESA_FORMAT_RG_UINT16
:
1860 return format
== GL_RG_INTEGER
&& type
== GL_UNSIGNED_SHORT
&& !swapBytes
;
1861 case MESA_FORMAT_RGB_UINT16
:
1862 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_SHORT
&&
1864 case MESA_FORMAT_RGBA_UINT16
:
1865 return format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT
&&
1867 case MESA_FORMAT_R_UINT32
:
1868 return format
== GL_RED_INTEGER
&& type
== GL_UNSIGNED_INT
&& !swapBytes
;
1869 case MESA_FORMAT_RG_UINT32
:
1870 return format
== GL_RG_INTEGER
&& type
== GL_UNSIGNED_INT
&& !swapBytes
;
1871 case MESA_FORMAT_RGB_UINT32
:
1872 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_INT
&& !swapBytes
;
1873 case MESA_FORMAT_RGBA_UINT32
:
1874 return format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_INT
&& !swapBytes
;
1876 case MESA_FORMAT_R_SNORM8
:
1877 return format
== GL_RED
&& type
== GL_BYTE
;
1878 case MESA_FORMAT_R8G8_SNORM
:
1879 return format
== GL_RG
&& type
== GL_BYTE
&& littleEndian
&&
1881 case MESA_FORMAT_X8B8G8R8_SNORM
:
1884 case MESA_FORMAT_A8B8G8R8_SNORM
:
1885 if (format
== GL_RGBA
&& type
== GL_BYTE
&& !littleEndian
)
1888 if (format
== GL_ABGR_EXT
&& type
== GL_BYTE
&& littleEndian
)
1893 case MESA_FORMAT_R8G8B8A8_SNORM
:
1894 if (format
== GL_RGBA
&& type
== GL_BYTE
&& littleEndian
)
1897 if (format
== GL_ABGR_EXT
&& type
== GL_BYTE
&& !littleEndian
)
1902 case MESA_FORMAT_R_SNORM16
:
1903 return format
== GL_RED
&& type
== GL_SHORT
&&
1905 case MESA_FORMAT_R16G16_SNORM
:
1906 return format
== GL_RG
&& type
== GL_SHORT
&& littleEndian
&& !swapBytes
;
1907 case MESA_FORMAT_RGB_SNORM16
:
1908 return format
== GL_RGB
&& type
== GL_SHORT
&& !swapBytes
;
1909 case MESA_FORMAT_RGBA_SNORM16
:
1910 return format
== GL_RGBA
&& type
== GL_SHORT
&& !swapBytes
;
1911 case MESA_FORMAT_RGBA_UNORM16
:
1912 return format
== GL_RGBA
&& type
== GL_UNSIGNED_SHORT
&&
1915 case MESA_FORMAT_A_SNORM8
:
1916 return format
== GL_ALPHA
&& type
== GL_BYTE
;
1917 case MESA_FORMAT_L_SNORM8
:
1918 return format
== GL_LUMINANCE
&& type
== GL_BYTE
;
1919 case MESA_FORMAT_L8A8_SNORM
:
1920 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_BYTE
&&
1921 littleEndian
&& !swapBytes
;
1922 case MESA_FORMAT_A8L8_SNORM
:
1923 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_BYTE
&&
1924 !littleEndian
&& !swapBytes
;
1925 case MESA_FORMAT_I_SNORM8
:
1926 return format
== GL_RED
&& type
== GL_BYTE
;
1927 case MESA_FORMAT_A_SNORM16
:
1928 return format
== GL_ALPHA
&& type
== GL_SHORT
&& !swapBytes
;
1929 case MESA_FORMAT_L_SNORM16
:
1930 return format
== GL_LUMINANCE
&& type
== GL_SHORT
&& !swapBytes
;
1931 case MESA_FORMAT_LA_SNORM16
:
1932 return format
== GL_LUMINANCE_ALPHA
&& type
== GL_SHORT
&&
1933 littleEndian
&& !swapBytes
;
1934 case MESA_FORMAT_I_SNORM16
:
1935 return format
== GL_RED
&& type
== GL_SHORT
&& littleEndian
&&
1938 case MESA_FORMAT_B10G10R10A2_UINT
:
1939 return (format
== GL_BGRA_INTEGER_EXT
&&
1940 type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
1943 case MESA_FORMAT_R10G10B10A2_UINT
:
1944 return (format
== GL_RGBA_INTEGER_EXT
&&
1945 type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
1948 case MESA_FORMAT_B5G6R5_UINT
:
1949 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_SHORT_5_6_5
;
1951 case MESA_FORMAT_R5G6B5_UINT
:
1952 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_SHORT_5_6_5_REV
;
1954 case MESA_FORMAT_B2G3R3_UINT
:
1955 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_BYTE_3_3_2
;
1957 case MESA_FORMAT_R3G3B2_UINT
:
1958 return format
== GL_RGB_INTEGER
&& type
== GL_UNSIGNED_BYTE_2_3_3_REV
;
1960 case MESA_FORMAT_A4B4G4R4_UINT
:
1961 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_4_4_4_4
&& !swapBytes
)
1964 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&& swapBytes
)
1968 case MESA_FORMAT_R4G4B4A4_UINT
:
1969 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&& !swapBytes
)
1972 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_4_4_4_4
&& swapBytes
)
1977 case MESA_FORMAT_B4G4R4A4_UINT
:
1978 return format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_SHORT_4_4_4_4_REV
&&
1981 case MESA_FORMAT_A4R4G4B4_UINT
:
1984 case MESA_FORMAT_A1B5G5R5_UINT
:
1985 return format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
1988 case MESA_FORMAT_B5G5R5A1_UINT
:
1989 return format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
&&
1992 case MESA_FORMAT_A1R5G5B5_UINT
:
1993 return format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_SHORT_5_5_5_1
&&
1996 case MESA_FORMAT_R5G5B5A1_UINT
:
1997 return format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_SHORT_1_5_5_5_REV
;
1999 case MESA_FORMAT_A8B8G8R8_UINT
:
2000 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& !swapBytes
)
2003 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&& swapBytes
)
2007 case MESA_FORMAT_A8R8G8B8_UINT
:
2008 if (format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8
&&
2012 if (format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2018 case MESA_FORMAT_R8G8B8A8_UINT
:
2019 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2023 if (format
== GL_RGBA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
2028 case MESA_FORMAT_B8G8R8A8_UINT
:
2029 if (format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8_REV
&&
2033 if (format
== GL_BGRA_INTEGER
&& type
== GL_UNSIGNED_INT_8_8_8_8
&& swapBytes
)
2038 case MESA_FORMAT_R9G9B9E5_FLOAT
:
2039 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_5_9_9_9_REV
&&
2042 case MESA_FORMAT_R11G11B10_FLOAT
:
2043 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_10F_11F_11F_REV
&&
2046 case MESA_FORMAT_Z_FLOAT32
:
2047 return format
== GL_DEPTH_COMPONENT
&& type
== GL_FLOAT
&& !swapBytes
;
2049 case MESA_FORMAT_Z32_FLOAT_S8X24_UINT
:
2050 return format
== GL_DEPTH_STENCIL
&&
2051 type
== GL_FLOAT_32_UNSIGNED_INT_24_8_REV
&& !swapBytes
;
2053 case MESA_FORMAT_B4G4R4X4_UNORM
:
2054 case MESA_FORMAT_B5G5R5X1_UNORM
:
2055 case MESA_FORMAT_R8G8B8X8_SNORM
:
2056 case MESA_FORMAT_R8G8B8X8_SRGB
:
2057 case MESA_FORMAT_X8B8G8R8_SRGB
:
2058 case MESA_FORMAT_RGBX_UINT8
:
2059 case MESA_FORMAT_RGBX_SINT8
:
2060 case MESA_FORMAT_B10G10R10X2_UNORM
:
2061 case MESA_FORMAT_RGBX_UNORM16
:
2062 case MESA_FORMAT_RGBX_SNORM16
:
2063 case MESA_FORMAT_RGBX_FLOAT16
:
2064 case MESA_FORMAT_RGBX_UINT16
:
2065 case MESA_FORMAT_RGBX_SINT16
:
2066 case MESA_FORMAT_RGBX_FLOAT32
:
2067 case MESA_FORMAT_RGBX_UINT32
:
2068 case MESA_FORMAT_RGBX_SINT32
:
2071 case MESA_FORMAT_R10G10B10X2_UNORM
:
2072 return format
== GL_RGB
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
2074 case MESA_FORMAT_R10G10B10A2_UNORM
:
2075 return format
== GL_RGBA
&& type
== GL_UNSIGNED_INT_2_10_10_10_REV
&&
2078 case MESA_FORMAT_G8R8_SNORM
:
2079 return format
== GL_RG
&& type
== GL_BYTE
&& !littleEndian
&&
2082 case MESA_FORMAT_G16R16_SNORM
:
2083 return format
== GL_RG
&& type
== GL_SHORT
&& !littleEndian
&&
2086 case MESA_FORMAT_B8G8R8X8_SRGB
:
2087 case MESA_FORMAT_X8R8G8B8_SRGB
:
2090 assert(_mesa_is_format_compressed(mesa_format
));
2092 *error
= GL_INVALID_ENUM
;