1 /**************************************************************************
3 * Copyright 2009-2010 Vmware, Inc.
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the
8 * "Software"), to deal in the Software without restriction, including
9 * without limitation the rights to use, copy, modify, merge, publish,
10 * distribute, sub license, and/or sell copies of the Software, and to
11 * permit persons to whom the Software is furnished to do so, subject to
12 * the following conditions:
14 * The above copyright notice and this permission notice (including the
15 * next paragraph) shall be included in all copies or substantial portions
18 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
19 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
20 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
21 * IN NO EVENT SHALL VMWARE AND/OR ITS SUPPLIERS BE LIABLE FOR
22 * ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
23 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
24 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
26 **************************************************************************/
33 #include "pipe/p_format.h"
34 #include "pipe/p_defines.h"
35 #include "util/u_debug.h"
37 union pipe_color_union
;
47 * Describe how to pack/unpack pixels into/from the prescribed format.
49 * XXX: This could be renamed to something like util_format_pack, or broke down
50 * in flags inside util_format_block that said exactly what we want.
52 enum util_format_layout
{
54 * Formats with util_format_block::width == util_format_block::height == 1
55 * that can be described as an ordinary data structure.
57 UTIL_FORMAT_LAYOUT_PLAIN
,
60 * Formats with sub-sampled channels.
62 * This is for formats like YVYU where there is less than one sample per
65 UTIL_FORMAT_LAYOUT_SUBSAMPLED
,
68 * S3 Texture Compression formats.
70 UTIL_FORMAT_LAYOUT_S3TC
,
73 * Red-Green Texture Compression formats.
75 UTIL_FORMAT_LAYOUT_RGTC
,
78 * Ericsson Texture Compression
80 UTIL_FORMAT_LAYOUT_ETC
,
83 * BC6/7 Texture Compression
85 UTIL_FORMAT_LAYOUT_BPTC
,
87 UTIL_FORMAT_LAYOUT_ASTC
,
89 UTIL_FORMAT_LAYOUT_ATC
,
91 /** Formats with 2 or more planes. */
92 UTIL_FORMAT_LAYOUT_PLANAR2
,
93 UTIL_FORMAT_LAYOUT_PLANAR3
,
95 UTIL_FORMAT_LAYOUT_FXT1
= 10,
98 * Everything else that doesn't fit in any of the above layouts.
100 UTIL_FORMAT_LAYOUT_OTHER
,
104 struct util_format_block
106 /** Block width in pixels */
109 /** Block height in pixels */
112 /** Block depth in pixels */
115 /** Block size in bits */
120 enum util_format_type
{
121 UTIL_FORMAT_TYPE_VOID
= 0,
122 UTIL_FORMAT_TYPE_UNSIGNED
= 1,
123 UTIL_FORMAT_TYPE_SIGNED
= 2,
124 UTIL_FORMAT_TYPE_FIXED
= 3,
125 UTIL_FORMAT_TYPE_FLOAT
= 4
129 enum util_format_colorspace
{
130 UTIL_FORMAT_COLORSPACE_RGB
= 0,
131 UTIL_FORMAT_COLORSPACE_SRGB
= 1,
132 UTIL_FORMAT_COLORSPACE_YUV
= 2,
133 UTIL_FORMAT_COLORSPACE_ZS
= 3
137 struct util_format_channel_description
139 unsigned type
:5; /**< UTIL_FORMAT_TYPE_x */
140 unsigned normalized
:1;
141 unsigned pure_integer
:1;
142 unsigned size
:9; /**< bits per channel */
143 unsigned shift
:16; /** number of bits from lsb */
147 struct util_format_description
149 enum pipe_format format
;
154 * Short name, striped of the prefix, lower case.
156 const char *short_name
;
159 * Pixel block dimensions.
161 struct util_format_block block
;
163 enum util_format_layout layout
;
166 * The number of channels.
168 unsigned nr_channels
:3;
171 * Whether all channels have the same number of (whole) bytes and type.
176 * Whether the pixel format can be described as a bitfield structure.
179 * - pixel depth must be 8, 16, or 32 bits;
180 * - all channels must be unsigned, signed, or void
182 unsigned is_bitmask
:1;
185 * Whether channels have mixed types (ignoring UTIL_FORMAT_TYPE_VOID).
190 * Whether the format contains UNORM channels
195 * Whether the format contains SNORM channels
200 * Input channel description, in the order XYZW.
202 * Only valid for UTIL_FORMAT_LAYOUT_PLAIN formats.
204 * If each channel is accessed as an individual N-byte value, X is always
205 * at the lowest address in memory, Y is always next, and so on. For all
206 * currently-defined formats, the N-byte value has native endianness.
208 * If instead a group of channels is accessed as a single N-byte value,
209 * the order of the channels within that value depends on endianness.
210 * For big-endian targets, X is the most significant subvalue,
211 * otherwise it is the least significant one.
213 * For example, if X is 8 bits and Y is 24 bits, the memory order is:
216 * little-endian: X Yl Ym Yu (l = lower, m = middle, u = upper)
217 * big-endian: X Yu Ym Yl
219 * If X is 5 bits, Y is 5 bits, Z is 5 bits and W is 1 bit, the layout is:
223 * little-endian: YYYXXXXX WZZZZZYY
224 * big-endian: XXXXXYYY YYZZZZZW
226 struct util_format_channel_description channel
[4];
229 * Output channel swizzle.
231 * The order is either:
235 * depending on the colorspace.
237 unsigned char swizzle
[4];
240 * Colorspace transformation.
242 enum util_format_colorspace colorspace
;
245 struct util_format_pack_description
{
247 * Pack pixel blocks from R8G8B8A8_UNORM.
248 * Note: strides are in bytes.
250 * Only defined for non-depth-stencil formats.
253 (*pack_rgba_8unorm
)(uint8_t *dst
, unsigned dst_stride
,
254 const uint8_t *src
, unsigned src_stride
,
255 unsigned width
, unsigned height
);
258 * Pack pixel blocks from R32G32B32A32_FLOAT.
259 * Note: strides are in bytes.
261 * Only defined for non-depth-stencil formats.
264 (*pack_rgba_float
)(uint8_t *dst
, unsigned dst_stride
,
265 const float *src
, unsigned src_stride
,
266 unsigned width
, unsigned height
);
269 * Pack pixels from Z32_FLOAT.
270 * Note: strides are in bytes.
272 * Only defined for depth formats.
275 (*pack_z_32unorm
)(uint8_t *dst
, unsigned dst_stride
,
276 const uint32_t *src
, unsigned src_stride
,
277 unsigned width
, unsigned height
);
280 * Pack pixels from Z32_FLOAT.
281 * Note: strides are in bytes.
283 * Only defined for depth formats.
286 (*pack_z_float
)(uint8_t *dst
, unsigned dst_stride
,
287 const float *src
, unsigned src_stride
,
288 unsigned width
, unsigned height
);
291 * Pack pixels from S8_UINT.
292 * Note: strides are in bytes.
294 * Only defined for stencil formats.
297 (*pack_s_8uint
)(uint8_t *dst
, unsigned dst_stride
,
298 const uint8_t *src
, unsigned src_stride
,
299 unsigned width
, unsigned height
);
302 (*pack_rgba_uint
)(uint8_t *dst
, unsigned dst_stride
,
303 const uint32_t *src
, unsigned src_stride
,
304 unsigned width
, unsigned height
);
307 (*pack_rgba_sint
)(uint8_t *dst
, unsigned dst_stride
,
308 const int32_t *src
, unsigned src_stride
,
309 unsigned width
, unsigned height
);
313 struct util_format_unpack_description
{
315 * Unpack pixel blocks to R8G8B8A8_UNORM.
316 * Note: strides are in bytes.
318 * Only defined for non-depth-stencil formats.
321 (*unpack_rgba_8unorm
)(uint8_t *dst
, unsigned dst_stride
,
322 const uint8_t *src
, unsigned src_stride
,
323 unsigned width
, unsigned height
);
326 * Fetch a single pixel (i, j) from a block.
328 * XXX: Only defined for a very few select formats.
331 (*fetch_rgba_8unorm
)(uint8_t *dst
,
333 unsigned i
, unsigned j
);
336 * Unpack pixel blocks to R32G32B32A32_UINT/_INT_FLOAT based on whether the
337 * type is pure uint, int, or other.
339 * Note: strides are in bytes.
341 * Only defined for non-depth-stencil formats.
344 (*unpack_rgba
)(void *dst
, unsigned dst_stride
,
345 const uint8_t *src
, unsigned src_stride
,
346 unsigned width
, unsigned height
);
349 * Unpack pixels to Z32_UNORM.
350 * Note: strides are in bytes.
352 * Only defined for depth formats.
355 (*unpack_z_32unorm
)(uint32_t *dst
, unsigned dst_stride
,
356 const uint8_t *src
, unsigned src_stride
,
357 unsigned width
, unsigned height
);
360 * Unpack pixels to Z32_FLOAT.
361 * Note: strides are in bytes.
363 * Only defined for depth formats.
366 (*unpack_z_float
)(float *dst
, unsigned dst_stride
,
367 const uint8_t *src
, unsigned src_stride
,
368 unsigned width
, unsigned height
);
371 * Unpack pixels to S8_UINT.
372 * Note: strides are in bytes.
374 * Only defined for stencil formats.
377 (*unpack_s_8uint
)(uint8_t *dst
, unsigned dst_stride
,
378 const uint8_t *src
, unsigned src_stride
,
379 unsigned width
, unsigned height
);
382 typedef void (*util_format_fetch_rgba_func_ptr
)(void *dst
, const uint8_t *src
,
383 unsigned i
, unsigned j
);
385 const struct util_format_description
*
386 util_format_description(enum pipe_format format
) ATTRIBUTE_CONST
;
388 const struct util_format_pack_description
*
389 util_format_pack_description(enum pipe_format format
) ATTRIBUTE_CONST
;
391 const struct util_format_unpack_description
*
392 util_format_unpack_description(enum pipe_format format
) ATTRIBUTE_CONST
;
395 * Returns a function to fetch a single pixel (i, j) from a block.
397 * Only defined for non-depth-stencil and non-integer formats.
399 util_format_fetch_rgba_func_ptr
400 util_format_fetch_rgba_func(enum pipe_format format
) ATTRIBUTE_CONST
;
403 * Format query functions.
406 static inline const char *
407 util_format_name(enum pipe_format format
)
409 const struct util_format_description
*desc
= util_format_description(format
);
413 return "PIPE_FORMAT_???";
419 static inline const char *
420 util_format_short_name(enum pipe_format format
)
422 const struct util_format_description
*desc
= util_format_description(format
);
429 return desc
->short_name
;
433 * Whether this format is plain, see UTIL_FORMAT_LAYOUT_PLAIN for more info.
435 static inline boolean
436 util_format_is_plain(enum pipe_format format
)
438 const struct util_format_description
*desc
= util_format_description(format
);
444 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
? TRUE
: FALSE
;
447 static inline boolean
448 util_format_is_compressed(enum pipe_format format
)
450 const struct util_format_description
*desc
= util_format_description(format
);
457 switch (desc
->layout
) {
458 case UTIL_FORMAT_LAYOUT_S3TC
:
459 case UTIL_FORMAT_LAYOUT_RGTC
:
460 case UTIL_FORMAT_LAYOUT_ETC
:
461 case UTIL_FORMAT_LAYOUT_BPTC
:
462 case UTIL_FORMAT_LAYOUT_ASTC
:
463 case UTIL_FORMAT_LAYOUT_ATC
:
464 case UTIL_FORMAT_LAYOUT_FXT1
:
465 /* XXX add other formats in the future */
472 static inline boolean
473 util_format_is_s3tc(enum pipe_format format
)
475 const struct util_format_description
*desc
= util_format_description(format
);
482 return desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
? TRUE
: FALSE
;
485 static inline boolean
486 util_format_is_etc(enum pipe_format format
)
488 const struct util_format_description
*desc
= util_format_description(format
);
495 return desc
->layout
== UTIL_FORMAT_LAYOUT_ETC
? TRUE
: FALSE
;
498 static inline boolean
499 util_format_is_srgb(enum pipe_format format
)
501 const struct util_format_description
*desc
= util_format_description(format
);
502 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
;
505 static inline boolean
506 util_format_has_depth(const struct util_format_description
*desc
)
508 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
509 desc
->swizzle
[0] != PIPE_SWIZZLE_NONE
;
512 static inline boolean
513 util_format_has_stencil(const struct util_format_description
*desc
)
515 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
516 desc
->swizzle
[1] != PIPE_SWIZZLE_NONE
;
519 static inline boolean
520 util_format_is_depth_or_stencil(enum pipe_format format
)
522 const struct util_format_description
*desc
= util_format_description(format
);
529 return util_format_has_depth(desc
) ||
530 util_format_has_stencil(desc
);
533 static inline boolean
534 util_format_is_depth_and_stencil(enum pipe_format format
)
536 const struct util_format_description
*desc
= util_format_description(format
);
543 return util_format_has_depth(desc
) &&
544 util_format_has_stencil(desc
);
548 * For depth-stencil formats, return the equivalent depth-only format.
550 static inline enum pipe_format
551 util_format_get_depth_only(enum pipe_format format
)
554 case PIPE_FORMAT_Z24_UNORM_S8_UINT
:
555 return PIPE_FORMAT_Z24X8_UNORM
;
557 case PIPE_FORMAT_S8_UINT_Z24_UNORM
:
558 return PIPE_FORMAT_X8Z24_UNORM
;
560 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
:
561 return PIPE_FORMAT_Z32_FLOAT
;
568 static inline boolean
569 util_format_is_yuv(enum pipe_format format
)
571 const struct util_format_description
*desc
= util_format_description(format
);
578 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_YUV
;
582 * Calculates the depth format type based upon the incoming format description.
584 static inline unsigned
585 util_get_depth_format_type(const struct util_format_description
*desc
)
587 unsigned depth_channel
= desc
->swizzle
[0];
588 if (desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
589 depth_channel
!= PIPE_SWIZZLE_NONE
) {
590 return desc
->channel
[depth_channel
].type
;
592 return UTIL_FORMAT_TYPE_VOID
;
598 * Calculates the MRD for the depth format. MRD is used in depth bias
599 * for UNORM and unbound depth buffers. When the depth buffer is floating
600 * point, the depth bias calculation does not use the MRD. However, the
601 * default MRD will be 1.0 / ((1 << 24) - 1).
604 util_get_depth_format_mrd(const struct util_format_description
*desc
);
608 * Return whether this is an RGBA, Z, S, or combined ZS format.
609 * Useful for initializing pipe_blit_info::mask.
611 static inline unsigned
612 util_format_get_mask(enum pipe_format format
)
614 const struct util_format_description
*desc
=
615 util_format_description(format
);
620 if (util_format_has_depth(desc
)) {
621 if (util_format_has_stencil(desc
)) {
627 if (util_format_has_stencil(desc
)) {
630 return PIPE_MASK_RGBA
;
636 * Give the RGBA colormask of the channels that can be represented in this
639 * That is, the channels whose values are preserved.
641 static inline unsigned
642 util_format_colormask(const struct util_format_description
*desc
)
647 switch (desc
->colorspace
) {
648 case UTIL_FORMAT_COLORSPACE_RGB
:
649 case UTIL_FORMAT_COLORSPACE_SRGB
:
650 case UTIL_FORMAT_COLORSPACE_YUV
:
652 for (chan
= 0; chan
< 4; ++chan
) {
653 if (desc
->swizzle
[chan
] < 4) {
654 colormask
|= (1 << chan
);
658 case UTIL_FORMAT_COLORSPACE_ZS
:
668 * Checks if color mask covers every channel for the specified format
670 * @param desc a format description to check colormask with
671 * @param colormask a bit mask for channels, matches format of PIPE_MASK_RGBA
673 static inline boolean
674 util_format_colormask_full(const struct util_format_description
*desc
, unsigned colormask
)
676 return (~colormask
& util_format_colormask(desc
)) == 0;
681 util_format_is_float(enum pipe_format format
) ATTRIBUTE_CONST
;
685 util_format_has_alpha(enum pipe_format format
) ATTRIBUTE_CONST
;
689 util_format_is_luminance(enum pipe_format format
) ATTRIBUTE_CONST
;
692 util_format_is_alpha(enum pipe_format format
) ATTRIBUTE_CONST
;
695 util_format_is_luminance_alpha(enum pipe_format format
) ATTRIBUTE_CONST
;
699 util_format_is_intensity(enum pipe_format format
) ATTRIBUTE_CONST
;
702 util_format_is_subsampled_422(enum pipe_format format
) ATTRIBUTE_CONST
;
705 util_format_is_pure_integer(enum pipe_format format
) ATTRIBUTE_CONST
;
708 util_format_is_pure_sint(enum pipe_format format
) ATTRIBUTE_CONST
;
711 util_format_is_pure_uint(enum pipe_format format
) ATTRIBUTE_CONST
;
714 util_format_is_snorm(enum pipe_format format
) ATTRIBUTE_CONST
;
717 util_format_is_unorm(enum pipe_format format
) ATTRIBUTE_CONST
;
720 util_format_is_snorm8(enum pipe_format format
) ATTRIBUTE_CONST
;
723 * Check if the src format can be blitted to the destination format with
724 * a simple memcpy. For example, blitting from RGBA to RGBx is OK, but not
728 util_is_format_compatible(const struct util_format_description
*src_desc
,
729 const struct util_format_description
*dst_desc
) ATTRIBUTE_CONST
;
732 * Whether this format is a rgab8 variant.
734 * That is, any format that matches the
736 * PIPE_FORMAT_?8?8?8?8_UNORM
738 static inline boolean
739 util_format_is_rgba8_variant(const struct util_format_description
*desc
)
743 if(desc
->block
.width
!= 1 ||
744 desc
->block
.height
!= 1 ||
745 desc
->block
.bits
!= 32)
748 for(chan
= 0; chan
< 4; ++chan
) {
749 if(desc
->channel
[chan
].type
!= UTIL_FORMAT_TYPE_UNSIGNED
&&
750 desc
->channel
[chan
].type
!= UTIL_FORMAT_TYPE_VOID
)
752 if(desc
->channel
[chan
].type
== UTIL_FORMAT_TYPE_UNSIGNED
&&
753 !desc
->channel
[chan
].normalized
)
755 if(desc
->channel
[chan
].size
!= 8)
763 * Return total bits needed for the pixel format per block.
766 util_format_get_blocksizebits(enum pipe_format format
)
768 const struct util_format_description
*desc
= util_format_description(format
);
775 return desc
->block
.bits
;
779 * Return bytes per block (not pixel) for the given format.
782 util_format_get_blocksize(enum pipe_format format
)
784 uint bits
= util_format_get_blocksizebits(format
);
785 uint bytes
= bits
/ 8;
787 assert(bits
% 8 == 0);
797 util_format_get_blockwidth(enum pipe_format format
)
799 const struct util_format_description
*desc
= util_format_description(format
);
806 return desc
->block
.width
;
810 util_format_get_blockheight(enum pipe_format format
)
812 const struct util_format_description
*desc
= util_format_description(format
);
819 return desc
->block
.height
;
823 util_format_get_blockdepth(enum pipe_format format
)
825 const struct util_format_description
*desc
= util_format_description(format
);
832 return desc
->block
.depth
;
835 static inline unsigned
836 util_format_get_nblocksx(enum pipe_format format
,
839 unsigned blockwidth
= util_format_get_blockwidth(format
);
840 return (x
+ blockwidth
- 1) / blockwidth
;
843 static inline unsigned
844 util_format_get_nblocksy(enum pipe_format format
,
847 unsigned blockheight
= util_format_get_blockheight(format
);
848 return (y
+ blockheight
- 1) / blockheight
;
851 static inline unsigned
852 util_format_get_nblocksz(enum pipe_format format
,
855 unsigned blockdepth
= util_format_get_blockdepth(format
);
856 return (z
+ blockdepth
- 1) / blockdepth
;
859 static inline unsigned
860 util_format_get_nblocks(enum pipe_format format
,
864 assert(util_format_get_blockdepth(format
) == 1);
865 return util_format_get_nblocksx(format
, width
) * util_format_get_nblocksy(format
, height
);
869 util_format_get_stride(enum pipe_format format
,
872 return (size_t)util_format_get_nblocksx(format
, width
) * util_format_get_blocksize(format
);
876 util_format_get_2d_size(enum pipe_format format
,
880 return util_format_get_nblocksy(format
, height
) * stride
;
884 util_format_get_component_bits(enum pipe_format format
,
885 enum util_format_colorspace colorspace
,
888 const struct util_format_description
*desc
= util_format_description(format
);
889 enum util_format_colorspace desc_colorspace
;
896 assert(component
< 4);
898 /* Treat RGB and SRGB as equivalent. */
899 if (colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
) {
900 colorspace
= UTIL_FORMAT_COLORSPACE_RGB
;
902 if (desc
->colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
) {
903 desc_colorspace
= UTIL_FORMAT_COLORSPACE_RGB
;
905 desc_colorspace
= desc
->colorspace
;
908 if (desc_colorspace
!= colorspace
) {
912 switch (desc
->swizzle
[component
]) {
914 return desc
->channel
[0].size
;
916 return desc
->channel
[1].size
;
918 return desc
->channel
[2].size
;
920 return desc
->channel
[3].size
;
927 * Given a linear RGB colorspace format, return the corresponding SRGB
928 * format, or PIPE_FORMAT_NONE if none.
930 static inline enum pipe_format
931 util_format_srgb(enum pipe_format format
)
933 if (util_format_is_srgb(format
))
937 case PIPE_FORMAT_L8_UNORM
:
938 return PIPE_FORMAT_L8_SRGB
;
939 case PIPE_FORMAT_R8_UNORM
:
940 return PIPE_FORMAT_R8_SRGB
;
941 case PIPE_FORMAT_L8A8_UNORM
:
942 return PIPE_FORMAT_L8A8_SRGB
;
943 case PIPE_FORMAT_R8G8_UNORM
:
944 return PIPE_FORMAT_R8G8_SRGB
;
945 case PIPE_FORMAT_R8G8B8_UNORM
:
946 return PIPE_FORMAT_R8G8B8_SRGB
;
947 case PIPE_FORMAT_B8G8R8_UNORM
:
948 return PIPE_FORMAT_B8G8R8_SRGB
;
949 case PIPE_FORMAT_A8B8G8R8_UNORM
:
950 return PIPE_FORMAT_A8B8G8R8_SRGB
;
951 case PIPE_FORMAT_X8B8G8R8_UNORM
:
952 return PIPE_FORMAT_X8B8G8R8_SRGB
;
953 case PIPE_FORMAT_B8G8R8A8_UNORM
:
954 return PIPE_FORMAT_B8G8R8A8_SRGB
;
955 case PIPE_FORMAT_B8G8R8X8_UNORM
:
956 return PIPE_FORMAT_B8G8R8X8_SRGB
;
957 case PIPE_FORMAT_A8R8G8B8_UNORM
:
958 return PIPE_FORMAT_A8R8G8B8_SRGB
;
959 case PIPE_FORMAT_X8R8G8B8_UNORM
:
960 return PIPE_FORMAT_X8R8G8B8_SRGB
;
961 case PIPE_FORMAT_R8G8B8A8_UNORM
:
962 return PIPE_FORMAT_R8G8B8A8_SRGB
;
963 case PIPE_FORMAT_R8G8B8X8_UNORM
:
964 return PIPE_FORMAT_R8G8B8X8_SRGB
;
965 case PIPE_FORMAT_DXT1_RGB
:
966 return PIPE_FORMAT_DXT1_SRGB
;
967 case PIPE_FORMAT_DXT1_RGBA
:
968 return PIPE_FORMAT_DXT1_SRGBA
;
969 case PIPE_FORMAT_DXT3_RGBA
:
970 return PIPE_FORMAT_DXT3_SRGBA
;
971 case PIPE_FORMAT_DXT5_RGBA
:
972 return PIPE_FORMAT_DXT5_SRGBA
;
973 case PIPE_FORMAT_B5G6R5_UNORM
:
974 return PIPE_FORMAT_B5G6R5_SRGB
;
975 case PIPE_FORMAT_BPTC_RGBA_UNORM
:
976 return PIPE_FORMAT_BPTC_SRGBA
;
977 case PIPE_FORMAT_ETC2_RGB8
:
978 return PIPE_FORMAT_ETC2_SRGB8
;
979 case PIPE_FORMAT_ETC2_RGB8A1
:
980 return PIPE_FORMAT_ETC2_SRGB8A1
;
981 case PIPE_FORMAT_ETC2_RGBA8
:
982 return PIPE_FORMAT_ETC2_SRGBA8
;
983 case PIPE_FORMAT_ASTC_4x4
:
984 return PIPE_FORMAT_ASTC_4x4_SRGB
;
985 case PIPE_FORMAT_ASTC_5x4
:
986 return PIPE_FORMAT_ASTC_5x4_SRGB
;
987 case PIPE_FORMAT_ASTC_5x5
:
988 return PIPE_FORMAT_ASTC_5x5_SRGB
;
989 case PIPE_FORMAT_ASTC_6x5
:
990 return PIPE_FORMAT_ASTC_6x5_SRGB
;
991 case PIPE_FORMAT_ASTC_6x6
:
992 return PIPE_FORMAT_ASTC_6x6_SRGB
;
993 case PIPE_FORMAT_ASTC_8x5
:
994 return PIPE_FORMAT_ASTC_8x5_SRGB
;
995 case PIPE_FORMAT_ASTC_8x6
:
996 return PIPE_FORMAT_ASTC_8x6_SRGB
;
997 case PIPE_FORMAT_ASTC_8x8
:
998 return PIPE_FORMAT_ASTC_8x8_SRGB
;
999 case PIPE_FORMAT_ASTC_10x5
:
1000 return PIPE_FORMAT_ASTC_10x5_SRGB
;
1001 case PIPE_FORMAT_ASTC_10x6
:
1002 return PIPE_FORMAT_ASTC_10x6_SRGB
;
1003 case PIPE_FORMAT_ASTC_10x8
:
1004 return PIPE_FORMAT_ASTC_10x8_SRGB
;
1005 case PIPE_FORMAT_ASTC_10x10
:
1006 return PIPE_FORMAT_ASTC_10x10_SRGB
;
1007 case PIPE_FORMAT_ASTC_12x10
:
1008 return PIPE_FORMAT_ASTC_12x10_SRGB
;
1009 case PIPE_FORMAT_ASTC_12x12
:
1010 return PIPE_FORMAT_ASTC_12x12_SRGB
;
1011 case PIPE_FORMAT_ASTC_3x3x3
:
1012 return PIPE_FORMAT_ASTC_3x3x3_SRGB
;
1013 case PIPE_FORMAT_ASTC_4x3x3
:
1014 return PIPE_FORMAT_ASTC_4x3x3_SRGB
;
1015 case PIPE_FORMAT_ASTC_4x4x3
:
1016 return PIPE_FORMAT_ASTC_4x4x3_SRGB
;
1017 case PIPE_FORMAT_ASTC_4x4x4
:
1018 return PIPE_FORMAT_ASTC_4x4x4_SRGB
;
1019 case PIPE_FORMAT_ASTC_5x4x4
:
1020 return PIPE_FORMAT_ASTC_5x4x4_SRGB
;
1021 case PIPE_FORMAT_ASTC_5x5x4
:
1022 return PIPE_FORMAT_ASTC_5x5x4_SRGB
;
1023 case PIPE_FORMAT_ASTC_5x5x5
:
1024 return PIPE_FORMAT_ASTC_5x5x5_SRGB
;
1025 case PIPE_FORMAT_ASTC_6x5x5
:
1026 return PIPE_FORMAT_ASTC_6x5x5_SRGB
;
1027 case PIPE_FORMAT_ASTC_6x6x5
:
1028 return PIPE_FORMAT_ASTC_6x6x5_SRGB
;
1029 case PIPE_FORMAT_ASTC_6x6x6
:
1030 return PIPE_FORMAT_ASTC_6x6x6_SRGB
;
1033 return PIPE_FORMAT_NONE
;
1038 * Given an sRGB format, return the corresponding linear colorspace format.
1039 * For non sRGB formats, return the format unchanged.
1041 static inline enum pipe_format
1042 util_format_linear(enum pipe_format format
)
1045 case PIPE_FORMAT_L8_SRGB
:
1046 return PIPE_FORMAT_L8_UNORM
;
1047 case PIPE_FORMAT_R8_SRGB
:
1048 return PIPE_FORMAT_R8_UNORM
;
1049 case PIPE_FORMAT_L8A8_SRGB
:
1050 return PIPE_FORMAT_L8A8_UNORM
;
1051 case PIPE_FORMAT_R8G8_SRGB
:
1052 return PIPE_FORMAT_R8G8_UNORM
;
1053 case PIPE_FORMAT_R8G8B8_SRGB
:
1054 return PIPE_FORMAT_R8G8B8_UNORM
;
1055 case PIPE_FORMAT_B8G8R8_SRGB
:
1056 return PIPE_FORMAT_B8G8R8_UNORM
;
1057 case PIPE_FORMAT_A8B8G8R8_SRGB
:
1058 return PIPE_FORMAT_A8B8G8R8_UNORM
;
1059 case PIPE_FORMAT_X8B8G8R8_SRGB
:
1060 return PIPE_FORMAT_X8B8G8R8_UNORM
;
1061 case PIPE_FORMAT_B8G8R8A8_SRGB
:
1062 return PIPE_FORMAT_B8G8R8A8_UNORM
;
1063 case PIPE_FORMAT_B8G8R8X8_SRGB
:
1064 return PIPE_FORMAT_B8G8R8X8_UNORM
;
1065 case PIPE_FORMAT_A8R8G8B8_SRGB
:
1066 return PIPE_FORMAT_A8R8G8B8_UNORM
;
1067 case PIPE_FORMAT_X8R8G8B8_SRGB
:
1068 return PIPE_FORMAT_X8R8G8B8_UNORM
;
1069 case PIPE_FORMAT_R8G8B8A8_SRGB
:
1070 return PIPE_FORMAT_R8G8B8A8_UNORM
;
1071 case PIPE_FORMAT_R8G8B8X8_SRGB
:
1072 return PIPE_FORMAT_R8G8B8X8_UNORM
;
1073 case PIPE_FORMAT_DXT1_SRGB
:
1074 return PIPE_FORMAT_DXT1_RGB
;
1075 case PIPE_FORMAT_DXT1_SRGBA
:
1076 return PIPE_FORMAT_DXT1_RGBA
;
1077 case PIPE_FORMAT_DXT3_SRGBA
:
1078 return PIPE_FORMAT_DXT3_RGBA
;
1079 case PIPE_FORMAT_DXT5_SRGBA
:
1080 return PIPE_FORMAT_DXT5_RGBA
;
1081 case PIPE_FORMAT_B5G6R5_SRGB
:
1082 return PIPE_FORMAT_B5G6R5_UNORM
;
1083 case PIPE_FORMAT_BPTC_SRGBA
:
1084 return PIPE_FORMAT_BPTC_RGBA_UNORM
;
1085 case PIPE_FORMAT_ETC2_SRGB8
:
1086 return PIPE_FORMAT_ETC2_RGB8
;
1087 case PIPE_FORMAT_ETC2_SRGB8A1
:
1088 return PIPE_FORMAT_ETC2_RGB8A1
;
1089 case PIPE_FORMAT_ETC2_SRGBA8
:
1090 return PIPE_FORMAT_ETC2_RGBA8
;
1091 case PIPE_FORMAT_ASTC_4x4_SRGB
:
1092 return PIPE_FORMAT_ASTC_4x4
;
1093 case PIPE_FORMAT_ASTC_5x4_SRGB
:
1094 return PIPE_FORMAT_ASTC_5x4
;
1095 case PIPE_FORMAT_ASTC_5x5_SRGB
:
1096 return PIPE_FORMAT_ASTC_5x5
;
1097 case PIPE_FORMAT_ASTC_6x5_SRGB
:
1098 return PIPE_FORMAT_ASTC_6x5
;
1099 case PIPE_FORMAT_ASTC_6x6_SRGB
:
1100 return PIPE_FORMAT_ASTC_6x6
;
1101 case PIPE_FORMAT_ASTC_8x5_SRGB
:
1102 return PIPE_FORMAT_ASTC_8x5
;
1103 case PIPE_FORMAT_ASTC_8x6_SRGB
:
1104 return PIPE_FORMAT_ASTC_8x6
;
1105 case PIPE_FORMAT_ASTC_8x8_SRGB
:
1106 return PIPE_FORMAT_ASTC_8x8
;
1107 case PIPE_FORMAT_ASTC_10x5_SRGB
:
1108 return PIPE_FORMAT_ASTC_10x5
;
1109 case PIPE_FORMAT_ASTC_10x6_SRGB
:
1110 return PIPE_FORMAT_ASTC_10x6
;
1111 case PIPE_FORMAT_ASTC_10x8_SRGB
:
1112 return PIPE_FORMAT_ASTC_10x8
;
1113 case PIPE_FORMAT_ASTC_10x10_SRGB
:
1114 return PIPE_FORMAT_ASTC_10x10
;
1115 case PIPE_FORMAT_ASTC_12x10_SRGB
:
1116 return PIPE_FORMAT_ASTC_12x10
;
1117 case PIPE_FORMAT_ASTC_12x12_SRGB
:
1118 return PIPE_FORMAT_ASTC_12x12
;
1119 case PIPE_FORMAT_ASTC_3x3x3_SRGB
:
1120 return PIPE_FORMAT_ASTC_3x3x3
;
1121 case PIPE_FORMAT_ASTC_4x3x3_SRGB
:
1122 return PIPE_FORMAT_ASTC_4x3x3
;
1123 case PIPE_FORMAT_ASTC_4x4x3_SRGB
:
1124 return PIPE_FORMAT_ASTC_4x4x3
;
1125 case PIPE_FORMAT_ASTC_4x4x4_SRGB
:
1126 return PIPE_FORMAT_ASTC_4x4x4
;
1127 case PIPE_FORMAT_ASTC_5x4x4_SRGB
:
1128 return PIPE_FORMAT_ASTC_5x4x4
;
1129 case PIPE_FORMAT_ASTC_5x5x4_SRGB
:
1130 return PIPE_FORMAT_ASTC_5x5x4
;
1131 case PIPE_FORMAT_ASTC_5x5x5_SRGB
:
1132 return PIPE_FORMAT_ASTC_5x5x5
;
1133 case PIPE_FORMAT_ASTC_6x5x5_SRGB
:
1134 return PIPE_FORMAT_ASTC_6x5x5
;
1135 case PIPE_FORMAT_ASTC_6x6x5_SRGB
:
1136 return PIPE_FORMAT_ASTC_6x6x5
;
1137 case PIPE_FORMAT_ASTC_6x6x6_SRGB
:
1138 return PIPE_FORMAT_ASTC_6x6x6
;
1145 * Given a depth-stencil format, return the corresponding stencil-only format.
1146 * For stencil-only formats, return the format unchanged.
1148 static inline enum pipe_format
1149 util_format_stencil_only(enum pipe_format format
)
1152 /* mask out the depth component */
1153 case PIPE_FORMAT_Z24_UNORM_S8_UINT
:
1154 return PIPE_FORMAT_X24S8_UINT
;
1155 case PIPE_FORMAT_S8_UINT_Z24_UNORM
:
1156 return PIPE_FORMAT_S8X24_UINT
;
1157 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
:
1158 return PIPE_FORMAT_X32_S8X24_UINT
;
1160 /* stencil only formats */
1161 case PIPE_FORMAT_X24S8_UINT
:
1162 case PIPE_FORMAT_S8X24_UINT
:
1163 case PIPE_FORMAT_X32_S8X24_UINT
:
1164 case PIPE_FORMAT_S8_UINT
:
1169 return PIPE_FORMAT_NONE
;
1174 * Converts PIPE_FORMAT_*I* to PIPE_FORMAT_*R*.
1175 * This is identity for non-intensity formats.
1177 static inline enum pipe_format
1178 util_format_intensity_to_red(enum pipe_format format
)
1181 case PIPE_FORMAT_I8_UNORM
:
1182 return PIPE_FORMAT_R8_UNORM
;
1183 case PIPE_FORMAT_I8_SNORM
:
1184 return PIPE_FORMAT_R8_SNORM
;
1185 case PIPE_FORMAT_I16_UNORM
:
1186 return PIPE_FORMAT_R16_UNORM
;
1187 case PIPE_FORMAT_I16_SNORM
:
1188 return PIPE_FORMAT_R16_SNORM
;
1189 case PIPE_FORMAT_I16_FLOAT
:
1190 return PIPE_FORMAT_R16_FLOAT
;
1191 case PIPE_FORMAT_I32_FLOAT
:
1192 return PIPE_FORMAT_R32_FLOAT
;
1193 case PIPE_FORMAT_I8_UINT
:
1194 return PIPE_FORMAT_R8_UINT
;
1195 case PIPE_FORMAT_I8_SINT
:
1196 return PIPE_FORMAT_R8_SINT
;
1197 case PIPE_FORMAT_I16_UINT
:
1198 return PIPE_FORMAT_R16_UINT
;
1199 case PIPE_FORMAT_I16_SINT
:
1200 return PIPE_FORMAT_R16_SINT
;
1201 case PIPE_FORMAT_I32_UINT
:
1202 return PIPE_FORMAT_R32_UINT
;
1203 case PIPE_FORMAT_I32_SINT
:
1204 return PIPE_FORMAT_R32_SINT
;
1206 assert(!util_format_is_intensity(format
));
1212 * Converts PIPE_FORMAT_*L* to PIPE_FORMAT_*R*.
1213 * This is identity for non-luminance formats.
1215 static inline enum pipe_format
1216 util_format_luminance_to_red(enum pipe_format format
)
1219 case PIPE_FORMAT_L8_UNORM
:
1220 return PIPE_FORMAT_R8_UNORM
;
1221 case PIPE_FORMAT_L8_SNORM
:
1222 return PIPE_FORMAT_R8_SNORM
;
1223 case PIPE_FORMAT_L16_UNORM
:
1224 return PIPE_FORMAT_R16_UNORM
;
1225 case PIPE_FORMAT_L16_SNORM
:
1226 return PIPE_FORMAT_R16_SNORM
;
1227 case PIPE_FORMAT_L16_FLOAT
:
1228 return PIPE_FORMAT_R16_FLOAT
;
1229 case PIPE_FORMAT_L32_FLOAT
:
1230 return PIPE_FORMAT_R32_FLOAT
;
1231 case PIPE_FORMAT_L8_UINT
:
1232 return PIPE_FORMAT_R8_UINT
;
1233 case PIPE_FORMAT_L8_SINT
:
1234 return PIPE_FORMAT_R8_SINT
;
1235 case PIPE_FORMAT_L16_UINT
:
1236 return PIPE_FORMAT_R16_UINT
;
1237 case PIPE_FORMAT_L16_SINT
:
1238 return PIPE_FORMAT_R16_SINT
;
1239 case PIPE_FORMAT_L32_UINT
:
1240 return PIPE_FORMAT_R32_UINT
;
1241 case PIPE_FORMAT_L32_SINT
:
1242 return PIPE_FORMAT_R32_SINT
;
1244 case PIPE_FORMAT_LATC1_UNORM
:
1245 return PIPE_FORMAT_RGTC1_UNORM
;
1246 case PIPE_FORMAT_LATC1_SNORM
:
1247 return PIPE_FORMAT_RGTC1_SNORM
;
1249 case PIPE_FORMAT_L4A4_UNORM
:
1250 return PIPE_FORMAT_R4A4_UNORM
;
1252 case PIPE_FORMAT_L8A8_UNORM
:
1253 return PIPE_FORMAT_R8A8_UNORM
;
1254 case PIPE_FORMAT_L8A8_SNORM
:
1255 return PIPE_FORMAT_R8A8_SNORM
;
1256 case PIPE_FORMAT_L16A16_UNORM
:
1257 return PIPE_FORMAT_R16A16_UNORM
;
1258 case PIPE_FORMAT_L16A16_SNORM
:
1259 return PIPE_FORMAT_R16A16_SNORM
;
1260 case PIPE_FORMAT_L16A16_FLOAT
:
1261 return PIPE_FORMAT_R16A16_FLOAT
;
1262 case PIPE_FORMAT_L32A32_FLOAT
:
1263 return PIPE_FORMAT_R32A32_FLOAT
;
1264 case PIPE_FORMAT_L8A8_UINT
:
1265 return PIPE_FORMAT_R8A8_UINT
;
1266 case PIPE_FORMAT_L8A8_SINT
:
1267 return PIPE_FORMAT_R8A8_SINT
;
1268 case PIPE_FORMAT_L16A16_UINT
:
1269 return PIPE_FORMAT_R16A16_UINT
;
1270 case PIPE_FORMAT_L16A16_SINT
:
1271 return PIPE_FORMAT_R16A16_SINT
;
1272 case PIPE_FORMAT_L32A32_UINT
:
1273 return PIPE_FORMAT_R32A32_UINT
;
1274 case PIPE_FORMAT_L32A32_SINT
:
1275 return PIPE_FORMAT_R32A32_SINT
;
1277 /* We don't have compressed red-alpha variants for these. */
1278 case PIPE_FORMAT_LATC2_UNORM
:
1279 case PIPE_FORMAT_LATC2_SNORM
:
1280 return PIPE_FORMAT_NONE
;
1283 assert(!util_format_is_luminance(format
) &&
1284 !util_format_is_luminance_alpha(format
));
1289 static inline unsigned
1290 util_format_get_num_planes(enum pipe_format format
)
1292 switch (util_format_description(format
)->layout
) {
1293 case UTIL_FORMAT_LAYOUT_PLANAR3
:
1295 case UTIL_FORMAT_LAYOUT_PLANAR2
:
1302 static inline enum pipe_format
1303 util_format_get_plane_format(enum pipe_format format
, unsigned plane
)
1306 case PIPE_FORMAT_YV12
:
1307 case PIPE_FORMAT_YV16
:
1308 case PIPE_FORMAT_IYUV
:
1309 case PIPE_FORMAT_Y8_U8_V8_422_UNORM
:
1310 case PIPE_FORMAT_Y8_U8_V8_444_UNORM
:
1311 return PIPE_FORMAT_R8_UNORM
;
1312 case PIPE_FORMAT_NV12
:
1313 case PIPE_FORMAT_Y8_U8V8_422_UNORM
:
1314 return !plane
? PIPE_FORMAT_R8_UNORM
: PIPE_FORMAT_RG88_UNORM
;
1315 case PIPE_FORMAT_NV21
:
1316 return !plane
? PIPE_FORMAT_R8_UNORM
: PIPE_FORMAT_GR88_UNORM
;
1317 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1318 case PIPE_FORMAT_Y16_U16_V16_422_UNORM
:
1319 case PIPE_FORMAT_Y16_U16_V16_444_UNORM
:
1320 return PIPE_FORMAT_R16_UNORM
;
1321 case PIPE_FORMAT_P010
:
1322 case PIPE_FORMAT_P016
:
1323 case PIPE_FORMAT_Y16_U16V16_422_UNORM
:
1324 return !plane
? PIPE_FORMAT_R16_UNORM
: PIPE_FORMAT_R16G16_UNORM
;
1330 static inline unsigned
1331 util_format_get_plane_width(enum pipe_format format
, unsigned plane
,
1335 case PIPE_FORMAT_YV12
:
1336 case PIPE_FORMAT_YV16
:
1337 case PIPE_FORMAT_IYUV
:
1338 case PIPE_FORMAT_NV12
:
1339 case PIPE_FORMAT_NV21
:
1340 case PIPE_FORMAT_P010
:
1341 case PIPE_FORMAT_P016
:
1342 case PIPE_FORMAT_Y8_U8_V8_422_UNORM
:
1343 case PIPE_FORMAT_Y8_U8V8_422_UNORM
:
1344 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1345 case PIPE_FORMAT_Y16_U16_V16_422_UNORM
:
1346 case PIPE_FORMAT_Y16_U16V16_422_UNORM
:
1347 return !plane
? width
: (width
+ 1) / 2;
1353 static inline unsigned
1354 util_format_get_plane_height(enum pipe_format format
, unsigned plane
,
1358 case PIPE_FORMAT_YV12
:
1359 case PIPE_FORMAT_IYUV
:
1360 case PIPE_FORMAT_NV12
:
1361 case PIPE_FORMAT_NV21
:
1362 case PIPE_FORMAT_P010
:
1363 case PIPE_FORMAT_P016
:
1364 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1365 return !plane
? height
: (height
+ 1) / 2;
1366 case PIPE_FORMAT_YV16
:
1373 * Return the number of components stored.
1374 * Formats with block size != 1x1 will always have 1 component (the block).
1376 static inline unsigned
1377 util_format_get_nr_components(enum pipe_format format
)
1379 const struct util_format_description
*desc
= util_format_description(format
);
1380 return desc
->nr_channels
;
1384 * Return the index of the first non-void channel
1385 * -1 if no non-void channels
1388 util_format_get_first_non_void_channel(enum pipe_format format
)
1390 const struct util_format_description
*desc
= util_format_description(format
);
1393 for (i
= 0; i
< 4; i
++)
1394 if (desc
->channel
[i
].type
!= UTIL_FORMAT_TYPE_VOID
)
1404 * Whether this format is any 8-bit UNORM variant. Looser than
1405 * util_is_rgba8_variant (also includes alpha textures, for instance).
1409 util_format_is_unorm8(const struct util_format_description
*desc
)
1411 int c
= util_format_get_first_non_void_channel(desc
->format
);
1416 return desc
->is_unorm
&& desc
->is_array
&& desc
->channel
[c
].size
== 8;
1420 util_format_unpack_z_float(enum pipe_format format
, float *dst
,
1421 const void *src
, unsigned w
)
1423 const struct util_format_unpack_description
*desc
=
1424 util_format_unpack_description(format
);
1426 desc
->unpack_z_float(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1430 util_format_unpack_z_32unorm(enum pipe_format format
, uint32_t *dst
,
1431 const void *src
, unsigned w
)
1433 const struct util_format_unpack_description
*desc
=
1434 util_format_unpack_description(format
);
1436 desc
->unpack_z_32unorm(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1440 util_format_unpack_s_8uint(enum pipe_format format
, uint8_t *dst
,
1441 const void *src
, unsigned w
)
1443 const struct util_format_unpack_description
*desc
=
1444 util_format_unpack_description(format
);
1446 desc
->unpack_s_8uint(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1450 * Unpacks a row of color data to 32-bit RGBA, either integers for pure
1451 * integer formats (sign-extended for signed data), or 32-bit floats.
1454 util_format_unpack_rgba(enum pipe_format format
, void *dst
,
1455 const void *src
, unsigned w
)
1457 const struct util_format_unpack_description
*desc
=
1458 util_format_unpack_description(format
);
1460 desc
->unpack_rgba(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1464 util_format_pack_z_float(enum pipe_format format
, void *dst
,
1465 const float *src
, unsigned w
)
1467 const struct util_format_pack_description
*desc
=
1468 util_format_pack_description(format
);
1470 desc
->pack_z_float((uint8_t *)dst
, 0, src
, 0, w
, 1);
1474 util_format_pack_z_32unorm(enum pipe_format format
, void *dst
,
1475 const uint32_t *src
, unsigned w
)
1477 const struct util_format_pack_description
*desc
=
1478 util_format_pack_description(format
);
1480 desc
->pack_z_32unorm((uint8_t *)dst
, 0, src
, 0, w
, 1);
1484 util_format_pack_s_8uint(enum pipe_format format
, void *dst
,
1485 const uint8_t *src
, unsigned w
)
1487 const struct util_format_pack_description
*desc
=
1488 util_format_pack_description(format
);
1490 desc
->pack_s_8uint((uint8_t *)dst
, 0, src
, 0, w
, 1);
1494 * Packs a row of color data from 32-bit RGBA, either integers for pure
1495 * integer formats, or 32-bit floats. Values are clamped to the packed
1496 * representation's range.
1499 util_format_pack_rgba(enum pipe_format format
, void *dst
,
1500 const void *src
, unsigned w
)
1502 const struct util_format_pack_description
*desc
=
1503 util_format_pack_description(format
);
1505 if (util_format_is_pure_uint(format
))
1506 desc
->pack_rgba_uint((uint8_t *)dst
, 0, (const uint32_t *)src
, 0, w
, 1);
1507 else if (util_format_is_pure_sint(format
))
1508 desc
->pack_rgba_sint((uint8_t *)dst
, 0, (const int32_t *)src
, 0, w
, 1);
1510 desc
->pack_rgba_float((uint8_t *)dst
, 0, (const float *)src
, 0, w
, 1);
1514 * Format access functions for subrectangles
1518 util_format_read_4(enum pipe_format format
,
1519 void *dst
, unsigned dst_stride
,
1520 const void *src
, unsigned src_stride
,
1521 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1524 util_format_write_4(enum pipe_format format
,
1525 const void *src
, unsigned src_stride
,
1526 void *dst
, unsigned dst_stride
,
1527 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1530 util_format_read_4ub(enum pipe_format format
,
1531 uint8_t *dst
, unsigned dst_stride
,
1532 const void *src
, unsigned src_stride
,
1533 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1536 util_format_write_4ub(enum pipe_format format
,
1537 const uint8_t *src
, unsigned src_stride
,
1538 void *dst
, unsigned dst_stride
,
1539 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1542 * Generic format conversion;
1546 util_format_fits_8unorm(const struct util_format_description
*format_desc
) ATTRIBUTE_CONST
;
1549 util_format_translate(enum pipe_format dst_format
,
1550 void *dst
, unsigned dst_stride
,
1551 unsigned dst_x
, unsigned dst_y
,
1552 enum pipe_format src_format
,
1553 const void *src
, unsigned src_stride
,
1554 unsigned src_x
, unsigned src_y
,
1555 unsigned width
, unsigned height
);
1558 util_format_translate_3d(enum pipe_format dst_format
,
1559 void *dst
, unsigned dst_stride
,
1560 unsigned dst_slice_stride
,
1561 unsigned dst_x
, unsigned dst_y
,
1563 enum pipe_format src_format
,
1564 const void *src
, unsigned src_stride
,
1565 unsigned src_slice_stride
,
1566 unsigned src_x
, unsigned src_y
,
1567 unsigned src_z
, unsigned width
,
1568 unsigned height
, unsigned depth
);
1571 * Swizzle operations.
1574 /* Compose two sets of swizzles.
1575 * If V is a 4D vector and the function parameters represent functions that
1576 * swizzle vector components, this holds:
1577 * swz2(swz1(V)) = dst(V)
1579 void util_format_compose_swizzles(const unsigned char swz1
[4],
1580 const unsigned char swz2
[4],
1581 unsigned char dst
[4]);
1583 /* Apply the swizzle provided in \param swz (which is one of PIPE_SWIZZLE_x)
1584 * to \param src and store the result in \param dst.
1585 * \param is_integer determines the value written for PIPE_SWIZZLE_1.
1587 void util_format_apply_color_swizzle(union pipe_color_union
*dst
,
1588 const union pipe_color_union
*src
,
1589 const unsigned char swz
[4],
1590 const boolean is_integer
);
1592 void pipe_swizzle_4f(float *dst
, const float *src
,
1593 const unsigned char swz
[4]);
1595 void util_format_unswizzle_4f(float *dst
, const float *src
,
1596 const unsigned char swz
[4]);
1599 util_format_snorm8_to_sint8(enum pipe_format format
) ATTRIBUTE_CONST
;
1603 util_copy_rect(ubyte
* dst
, enum pipe_format format
,
1604 unsigned dst_stride
, unsigned dst_x
, unsigned dst_y
,
1605 unsigned width
, unsigned height
, const ubyte
* src
,
1606 int src_stride
, unsigned src_x
, unsigned src_y
);
1612 #endif /* ! U_FORMAT_H */