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 * Unpack pixel blocks to R8G8B8A8_UNORM.
246 * Note: strides are in bytes.
248 * Only defined for non-depth-stencil formats.
251 (*unpack_rgba_8unorm
)(uint8_t *dst
, unsigned dst_stride
,
252 const uint8_t *src
, unsigned src_stride
,
253 unsigned width
, unsigned height
);
256 * Pack pixel blocks from R8G8B8A8_UNORM.
257 * Note: strides are in bytes.
259 * Only defined for non-depth-stencil formats.
262 (*pack_rgba_8unorm
)(uint8_t *dst
, unsigned dst_stride
,
263 const uint8_t *src
, unsigned src_stride
,
264 unsigned width
, unsigned height
);
267 * Fetch a single pixel (i, j) from a block.
269 * XXX: Only defined for a very few select formats.
272 (*fetch_rgba_8unorm
)(uint8_t *dst
,
274 unsigned i
, unsigned j
);
277 * Unpack pixel blocks to R32G32B32A32_UINT/_INT_FLOAT based on whether the
278 * type is pure uint, int, or other.
280 * Note: strides are in bytes.
282 * Only defined for non-depth-stencil formats.
285 (*unpack_rgba
)(void *dst
, unsigned dst_stride
,
286 const uint8_t *src
, unsigned src_stride
,
287 unsigned width
, unsigned height
);
290 * Pack pixel blocks from R32G32B32A32_FLOAT.
291 * Note: strides are in bytes.
293 * Only defined for non-depth-stencil formats.
296 (*pack_rgba_float
)(uint8_t *dst
, unsigned dst_stride
,
297 const float *src
, unsigned src_stride
,
298 unsigned width
, unsigned height
);
301 * Fetch a single pixel (i, j) from a block.
303 * Only defined for non-depth-stencil and non-integer formats.
306 (*fetch_rgba_float
)(float *dst
,
308 unsigned i
, unsigned j
);
311 * Unpack pixels to Z32_UNORM.
312 * Note: strides are in bytes.
314 * Only defined for depth formats.
317 (*unpack_z_32unorm
)(uint32_t *dst
, unsigned dst_stride
,
318 const uint8_t *src
, unsigned src_stride
,
319 unsigned width
, unsigned height
);
322 * Pack pixels from Z32_FLOAT.
323 * Note: strides are in bytes.
325 * Only defined for depth formats.
328 (*pack_z_32unorm
)(uint8_t *dst
, unsigned dst_stride
,
329 const uint32_t *src
, unsigned src_stride
,
330 unsigned width
, unsigned height
);
333 * Unpack pixels to Z32_FLOAT.
334 * Note: strides are in bytes.
336 * Only defined for depth formats.
339 (*unpack_z_float
)(float *dst
, unsigned dst_stride
,
340 const uint8_t *src
, unsigned src_stride
,
341 unsigned width
, unsigned height
);
344 * Pack pixels from Z32_FLOAT.
345 * Note: strides are in bytes.
347 * Only defined for depth formats.
350 (*pack_z_float
)(uint8_t *dst
, unsigned dst_stride
,
351 const float *src
, unsigned src_stride
,
352 unsigned width
, unsigned height
);
355 * Unpack pixels to S8_UINT.
356 * Note: strides are in bytes.
358 * Only defined for stencil formats.
361 (*unpack_s_8uint
)(uint8_t *dst
, unsigned dst_stride
,
362 const uint8_t *src
, unsigned src_stride
,
363 unsigned width
, unsigned height
);
366 * Pack pixels from S8_UINT.
367 * Note: strides are in bytes.
369 * Only defined for stencil formats.
372 (*pack_s_8uint
)(uint8_t *dst
, unsigned dst_stride
,
373 const uint8_t *src
, unsigned src_stride
,
374 unsigned width
, unsigned height
);
377 (*pack_rgba_uint
)(uint8_t *dst
, unsigned dst_stride
,
378 const uint32_t *src
, unsigned src_stride
,
379 unsigned width
, unsigned height
);
382 (*pack_rgba_sint
)(uint8_t *dst
, unsigned dst_stride
,
383 const int32_t *src
, unsigned src_stride
,
384 unsigned width
, unsigned height
);
387 * Fetch a single pixel (i, j) from a block.
389 * Only defined for unsigned (pure) integer formats.
392 (*fetch_rgba_uint
)(uint32_t *dst
,
394 unsigned i
, unsigned j
);
397 * Fetch a single pixel (i, j) from a block.
399 * Only defined for signed (pure) integer formats.
402 (*fetch_rgba_sint
)(int32_t *dst
,
404 unsigned i
, unsigned j
);
408 const struct util_format_description
*
409 util_format_description(enum pipe_format format
) ATTRIBUTE_CONST
;
413 * Format query functions.
416 static inline const char *
417 util_format_name(enum pipe_format format
)
419 const struct util_format_description
*desc
= util_format_description(format
);
423 return "PIPE_FORMAT_???";
429 static inline const char *
430 util_format_short_name(enum pipe_format format
)
432 const struct util_format_description
*desc
= util_format_description(format
);
439 return desc
->short_name
;
443 * Whether this format is plain, see UTIL_FORMAT_LAYOUT_PLAIN for more info.
445 static inline boolean
446 util_format_is_plain(enum pipe_format format
)
448 const struct util_format_description
*desc
= util_format_description(format
);
454 return desc
->layout
== UTIL_FORMAT_LAYOUT_PLAIN
? TRUE
: FALSE
;
457 static inline boolean
458 util_format_is_compressed(enum pipe_format format
)
460 const struct util_format_description
*desc
= util_format_description(format
);
467 switch (desc
->layout
) {
468 case UTIL_FORMAT_LAYOUT_S3TC
:
469 case UTIL_FORMAT_LAYOUT_RGTC
:
470 case UTIL_FORMAT_LAYOUT_ETC
:
471 case UTIL_FORMAT_LAYOUT_BPTC
:
472 case UTIL_FORMAT_LAYOUT_ASTC
:
473 case UTIL_FORMAT_LAYOUT_ATC
:
474 case UTIL_FORMAT_LAYOUT_FXT1
:
475 /* XXX add other formats in the future */
482 static inline boolean
483 util_format_is_s3tc(enum pipe_format format
)
485 const struct util_format_description
*desc
= util_format_description(format
);
492 return desc
->layout
== UTIL_FORMAT_LAYOUT_S3TC
? TRUE
: FALSE
;
495 static inline boolean
496 util_format_is_etc(enum pipe_format format
)
498 const struct util_format_description
*desc
= util_format_description(format
);
505 return desc
->layout
== UTIL_FORMAT_LAYOUT_ETC
? TRUE
: FALSE
;
508 static inline boolean
509 util_format_is_srgb(enum pipe_format format
)
511 const struct util_format_description
*desc
= util_format_description(format
);
512 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
;
515 static inline boolean
516 util_format_has_depth(const struct util_format_description
*desc
)
518 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
519 desc
->swizzle
[0] != PIPE_SWIZZLE_NONE
;
522 static inline boolean
523 util_format_has_stencil(const struct util_format_description
*desc
)
525 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
526 desc
->swizzle
[1] != PIPE_SWIZZLE_NONE
;
529 static inline boolean
530 util_format_is_depth_or_stencil(enum pipe_format format
)
532 const struct util_format_description
*desc
= util_format_description(format
);
539 return util_format_has_depth(desc
) ||
540 util_format_has_stencil(desc
);
543 static inline boolean
544 util_format_is_depth_and_stencil(enum pipe_format format
)
546 const struct util_format_description
*desc
= util_format_description(format
);
553 return util_format_has_depth(desc
) &&
554 util_format_has_stencil(desc
);
558 * For depth-stencil formats, return the equivalent depth-only format.
560 static inline enum pipe_format
561 util_format_get_depth_only(enum pipe_format format
)
564 case PIPE_FORMAT_Z24_UNORM_S8_UINT
:
565 return PIPE_FORMAT_Z24X8_UNORM
;
567 case PIPE_FORMAT_S8_UINT_Z24_UNORM
:
568 return PIPE_FORMAT_X8Z24_UNORM
;
570 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
:
571 return PIPE_FORMAT_Z32_FLOAT
;
578 static inline boolean
579 util_format_is_yuv(enum pipe_format format
)
581 const struct util_format_description
*desc
= util_format_description(format
);
588 return desc
->colorspace
== UTIL_FORMAT_COLORSPACE_YUV
;
592 * Calculates the depth format type based upon the incoming format description.
594 static inline unsigned
595 util_get_depth_format_type(const struct util_format_description
*desc
)
597 unsigned depth_channel
= desc
->swizzle
[0];
598 if (desc
->colorspace
== UTIL_FORMAT_COLORSPACE_ZS
&&
599 depth_channel
!= PIPE_SWIZZLE_NONE
) {
600 return desc
->channel
[depth_channel
].type
;
602 return UTIL_FORMAT_TYPE_VOID
;
608 * Calculates the MRD for the depth format. MRD is used in depth bias
609 * for UNORM and unbound depth buffers. When the depth buffer is floating
610 * point, the depth bias calculation does not use the MRD. However, the
611 * default MRD will be 1.0 / ((1 << 24) - 1).
614 util_get_depth_format_mrd(const struct util_format_description
*desc
);
618 * Return whether this is an RGBA, Z, S, or combined ZS format.
619 * Useful for initializing pipe_blit_info::mask.
621 static inline unsigned
622 util_format_get_mask(enum pipe_format format
)
624 const struct util_format_description
*desc
=
625 util_format_description(format
);
630 if (util_format_has_depth(desc
)) {
631 if (util_format_has_stencil(desc
)) {
637 if (util_format_has_stencil(desc
)) {
640 return PIPE_MASK_RGBA
;
646 * Give the RGBA colormask of the channels that can be represented in this
649 * That is, the channels whose values are preserved.
651 static inline unsigned
652 util_format_colormask(const struct util_format_description
*desc
)
657 switch (desc
->colorspace
) {
658 case UTIL_FORMAT_COLORSPACE_RGB
:
659 case UTIL_FORMAT_COLORSPACE_SRGB
:
660 case UTIL_FORMAT_COLORSPACE_YUV
:
662 for (chan
= 0; chan
< 4; ++chan
) {
663 if (desc
->swizzle
[chan
] < 4) {
664 colormask
|= (1 << chan
);
668 case UTIL_FORMAT_COLORSPACE_ZS
:
678 * Checks if color mask covers every channel for the specified format
680 * @param desc a format description to check colormask with
681 * @param colormask a bit mask for channels, matches format of PIPE_MASK_RGBA
683 static inline boolean
684 util_format_colormask_full(const struct util_format_description
*desc
, unsigned colormask
)
686 return (~colormask
& util_format_colormask(desc
)) == 0;
691 util_format_is_float(enum pipe_format format
);
695 util_format_has_alpha(enum pipe_format format
);
699 util_format_is_luminance(enum pipe_format format
);
702 util_format_is_alpha(enum pipe_format format
);
705 util_format_is_luminance_alpha(enum pipe_format format
);
709 util_format_is_intensity(enum pipe_format format
);
712 util_format_is_subsampled_422(enum pipe_format format
);
715 util_format_is_pure_integer(enum pipe_format format
);
718 util_format_is_pure_sint(enum pipe_format format
);
721 util_format_is_pure_uint(enum pipe_format format
);
724 util_format_is_snorm(enum pipe_format format
);
727 util_format_is_unorm(enum pipe_format format
);
730 util_format_is_snorm8(enum pipe_format format
);
733 * Check if the src format can be blitted to the destination format with
734 * a simple memcpy. For example, blitting from RGBA to RGBx is OK, but not
738 util_is_format_compatible(const struct util_format_description
*src_desc
,
739 const struct util_format_description
*dst_desc
);
742 * Whether this format is a rgab8 variant.
744 * That is, any format that matches the
746 * PIPE_FORMAT_?8?8?8?8_UNORM
748 static inline boolean
749 util_format_is_rgba8_variant(const struct util_format_description
*desc
)
753 if(desc
->block
.width
!= 1 ||
754 desc
->block
.height
!= 1 ||
755 desc
->block
.bits
!= 32)
758 for(chan
= 0; chan
< 4; ++chan
) {
759 if(desc
->channel
[chan
].type
!= UTIL_FORMAT_TYPE_UNSIGNED
&&
760 desc
->channel
[chan
].type
!= UTIL_FORMAT_TYPE_VOID
)
762 if(desc
->channel
[chan
].type
== UTIL_FORMAT_TYPE_UNSIGNED
&&
763 !desc
->channel
[chan
].normalized
)
765 if(desc
->channel
[chan
].size
!= 8)
773 * Return total bits needed for the pixel format per block.
776 util_format_get_blocksizebits(enum pipe_format format
)
778 const struct util_format_description
*desc
= util_format_description(format
);
785 return desc
->block
.bits
;
789 * Return bytes per block (not pixel) for the given format.
792 util_format_get_blocksize(enum pipe_format format
)
794 uint bits
= util_format_get_blocksizebits(format
);
795 uint bytes
= bits
/ 8;
797 assert(bits
% 8 == 0);
807 util_format_get_blockwidth(enum pipe_format format
)
809 const struct util_format_description
*desc
= util_format_description(format
);
816 return desc
->block
.width
;
820 util_format_get_blockheight(enum pipe_format format
)
822 const struct util_format_description
*desc
= util_format_description(format
);
829 return desc
->block
.height
;
833 util_format_get_blockdepth(enum pipe_format format
)
835 const struct util_format_description
*desc
= util_format_description(format
);
842 return desc
->block
.depth
;
845 static inline unsigned
846 util_format_get_nblocksx(enum pipe_format format
,
849 unsigned blockwidth
= util_format_get_blockwidth(format
);
850 return (x
+ blockwidth
- 1) / blockwidth
;
853 static inline unsigned
854 util_format_get_nblocksy(enum pipe_format format
,
857 unsigned blockheight
= util_format_get_blockheight(format
);
858 return (y
+ blockheight
- 1) / blockheight
;
861 static inline unsigned
862 util_format_get_nblocksz(enum pipe_format format
,
865 unsigned blockdepth
= util_format_get_blockdepth(format
);
866 return (z
+ blockdepth
- 1) / blockdepth
;
869 static inline unsigned
870 util_format_get_nblocks(enum pipe_format format
,
874 assert(util_format_get_blockdepth(format
) == 1);
875 return util_format_get_nblocksx(format
, width
) * util_format_get_nblocksy(format
, height
);
879 util_format_get_stride(enum pipe_format format
,
882 return (size_t)util_format_get_nblocksx(format
, width
) * util_format_get_blocksize(format
);
886 util_format_get_2d_size(enum pipe_format format
,
890 return util_format_get_nblocksy(format
, height
) * stride
;
894 util_format_get_component_bits(enum pipe_format format
,
895 enum util_format_colorspace colorspace
,
898 const struct util_format_description
*desc
= util_format_description(format
);
899 enum util_format_colorspace desc_colorspace
;
906 assert(component
< 4);
908 /* Treat RGB and SRGB as equivalent. */
909 if (colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
) {
910 colorspace
= UTIL_FORMAT_COLORSPACE_RGB
;
912 if (desc
->colorspace
== UTIL_FORMAT_COLORSPACE_SRGB
) {
913 desc_colorspace
= UTIL_FORMAT_COLORSPACE_RGB
;
915 desc_colorspace
= desc
->colorspace
;
918 if (desc_colorspace
!= colorspace
) {
922 switch (desc
->swizzle
[component
]) {
924 return desc
->channel
[0].size
;
926 return desc
->channel
[1].size
;
928 return desc
->channel
[2].size
;
930 return desc
->channel
[3].size
;
937 * Given a linear RGB colorspace format, return the corresponding SRGB
938 * format, or PIPE_FORMAT_NONE if none.
940 static inline enum pipe_format
941 util_format_srgb(enum pipe_format format
)
943 if (util_format_is_srgb(format
))
947 case PIPE_FORMAT_L8_UNORM
:
948 return PIPE_FORMAT_L8_SRGB
;
949 case PIPE_FORMAT_R8_UNORM
:
950 return PIPE_FORMAT_R8_SRGB
;
951 case PIPE_FORMAT_L8A8_UNORM
:
952 return PIPE_FORMAT_L8A8_SRGB
;
953 case PIPE_FORMAT_R8G8_UNORM
:
954 return PIPE_FORMAT_R8G8_SRGB
;
955 case PIPE_FORMAT_R8G8B8_UNORM
:
956 return PIPE_FORMAT_R8G8B8_SRGB
;
957 case PIPE_FORMAT_B8G8R8_UNORM
:
958 return PIPE_FORMAT_B8G8R8_SRGB
;
959 case PIPE_FORMAT_A8B8G8R8_UNORM
:
960 return PIPE_FORMAT_A8B8G8R8_SRGB
;
961 case PIPE_FORMAT_X8B8G8R8_UNORM
:
962 return PIPE_FORMAT_X8B8G8R8_SRGB
;
963 case PIPE_FORMAT_B8G8R8A8_UNORM
:
964 return PIPE_FORMAT_B8G8R8A8_SRGB
;
965 case PIPE_FORMAT_B8G8R8X8_UNORM
:
966 return PIPE_FORMAT_B8G8R8X8_SRGB
;
967 case PIPE_FORMAT_A8R8G8B8_UNORM
:
968 return PIPE_FORMAT_A8R8G8B8_SRGB
;
969 case PIPE_FORMAT_X8R8G8B8_UNORM
:
970 return PIPE_FORMAT_X8R8G8B8_SRGB
;
971 case PIPE_FORMAT_R8G8B8A8_UNORM
:
972 return PIPE_FORMAT_R8G8B8A8_SRGB
;
973 case PIPE_FORMAT_R8G8B8X8_UNORM
:
974 return PIPE_FORMAT_R8G8B8X8_SRGB
;
975 case PIPE_FORMAT_DXT1_RGB
:
976 return PIPE_FORMAT_DXT1_SRGB
;
977 case PIPE_FORMAT_DXT1_RGBA
:
978 return PIPE_FORMAT_DXT1_SRGBA
;
979 case PIPE_FORMAT_DXT3_RGBA
:
980 return PIPE_FORMAT_DXT3_SRGBA
;
981 case PIPE_FORMAT_DXT5_RGBA
:
982 return PIPE_FORMAT_DXT5_SRGBA
;
983 case PIPE_FORMAT_B5G6R5_UNORM
:
984 return PIPE_FORMAT_B5G6R5_SRGB
;
985 case PIPE_FORMAT_BPTC_RGBA_UNORM
:
986 return PIPE_FORMAT_BPTC_SRGBA
;
987 case PIPE_FORMAT_ETC2_RGB8
:
988 return PIPE_FORMAT_ETC2_SRGB8
;
989 case PIPE_FORMAT_ETC2_RGB8A1
:
990 return PIPE_FORMAT_ETC2_SRGB8A1
;
991 case PIPE_FORMAT_ETC2_RGBA8
:
992 return PIPE_FORMAT_ETC2_SRGBA8
;
993 case PIPE_FORMAT_ASTC_4x4
:
994 return PIPE_FORMAT_ASTC_4x4_SRGB
;
995 case PIPE_FORMAT_ASTC_5x4
:
996 return PIPE_FORMAT_ASTC_5x4_SRGB
;
997 case PIPE_FORMAT_ASTC_5x5
:
998 return PIPE_FORMAT_ASTC_5x5_SRGB
;
999 case PIPE_FORMAT_ASTC_6x5
:
1000 return PIPE_FORMAT_ASTC_6x5_SRGB
;
1001 case PIPE_FORMAT_ASTC_6x6
:
1002 return PIPE_FORMAT_ASTC_6x6_SRGB
;
1003 case PIPE_FORMAT_ASTC_8x5
:
1004 return PIPE_FORMAT_ASTC_8x5_SRGB
;
1005 case PIPE_FORMAT_ASTC_8x6
:
1006 return PIPE_FORMAT_ASTC_8x6_SRGB
;
1007 case PIPE_FORMAT_ASTC_8x8
:
1008 return PIPE_FORMAT_ASTC_8x8_SRGB
;
1009 case PIPE_FORMAT_ASTC_10x5
:
1010 return PIPE_FORMAT_ASTC_10x5_SRGB
;
1011 case PIPE_FORMAT_ASTC_10x6
:
1012 return PIPE_FORMAT_ASTC_10x6_SRGB
;
1013 case PIPE_FORMAT_ASTC_10x8
:
1014 return PIPE_FORMAT_ASTC_10x8_SRGB
;
1015 case PIPE_FORMAT_ASTC_10x10
:
1016 return PIPE_FORMAT_ASTC_10x10_SRGB
;
1017 case PIPE_FORMAT_ASTC_12x10
:
1018 return PIPE_FORMAT_ASTC_12x10_SRGB
;
1019 case PIPE_FORMAT_ASTC_12x12
:
1020 return PIPE_FORMAT_ASTC_12x12_SRGB
;
1021 case PIPE_FORMAT_ASTC_3x3x3
:
1022 return PIPE_FORMAT_ASTC_3x3x3_SRGB
;
1023 case PIPE_FORMAT_ASTC_4x3x3
:
1024 return PIPE_FORMAT_ASTC_4x3x3_SRGB
;
1025 case PIPE_FORMAT_ASTC_4x4x3
:
1026 return PIPE_FORMAT_ASTC_4x4x3_SRGB
;
1027 case PIPE_FORMAT_ASTC_4x4x4
:
1028 return PIPE_FORMAT_ASTC_4x4x4_SRGB
;
1029 case PIPE_FORMAT_ASTC_5x4x4
:
1030 return PIPE_FORMAT_ASTC_5x4x4_SRGB
;
1031 case PIPE_FORMAT_ASTC_5x5x4
:
1032 return PIPE_FORMAT_ASTC_5x5x4_SRGB
;
1033 case PIPE_FORMAT_ASTC_5x5x5
:
1034 return PIPE_FORMAT_ASTC_5x5x5_SRGB
;
1035 case PIPE_FORMAT_ASTC_6x5x5
:
1036 return PIPE_FORMAT_ASTC_6x5x5_SRGB
;
1037 case PIPE_FORMAT_ASTC_6x6x5
:
1038 return PIPE_FORMAT_ASTC_6x6x5_SRGB
;
1039 case PIPE_FORMAT_ASTC_6x6x6
:
1040 return PIPE_FORMAT_ASTC_6x6x6_SRGB
;
1043 return PIPE_FORMAT_NONE
;
1048 * Given an sRGB format, return the corresponding linear colorspace format.
1049 * For non sRGB formats, return the format unchanged.
1051 static inline enum pipe_format
1052 util_format_linear(enum pipe_format format
)
1055 case PIPE_FORMAT_L8_SRGB
:
1056 return PIPE_FORMAT_L8_UNORM
;
1057 case PIPE_FORMAT_R8_SRGB
:
1058 return PIPE_FORMAT_R8_UNORM
;
1059 case PIPE_FORMAT_L8A8_SRGB
:
1060 return PIPE_FORMAT_L8A8_UNORM
;
1061 case PIPE_FORMAT_R8G8_SRGB
:
1062 return PIPE_FORMAT_R8G8_UNORM
;
1063 case PIPE_FORMAT_R8G8B8_SRGB
:
1064 return PIPE_FORMAT_R8G8B8_UNORM
;
1065 case PIPE_FORMAT_B8G8R8_SRGB
:
1066 return PIPE_FORMAT_B8G8R8_UNORM
;
1067 case PIPE_FORMAT_A8B8G8R8_SRGB
:
1068 return PIPE_FORMAT_A8B8G8R8_UNORM
;
1069 case PIPE_FORMAT_X8B8G8R8_SRGB
:
1070 return PIPE_FORMAT_X8B8G8R8_UNORM
;
1071 case PIPE_FORMAT_B8G8R8A8_SRGB
:
1072 return PIPE_FORMAT_B8G8R8A8_UNORM
;
1073 case PIPE_FORMAT_B8G8R8X8_SRGB
:
1074 return PIPE_FORMAT_B8G8R8X8_UNORM
;
1075 case PIPE_FORMAT_A8R8G8B8_SRGB
:
1076 return PIPE_FORMAT_A8R8G8B8_UNORM
;
1077 case PIPE_FORMAT_X8R8G8B8_SRGB
:
1078 return PIPE_FORMAT_X8R8G8B8_UNORM
;
1079 case PIPE_FORMAT_R8G8B8A8_SRGB
:
1080 return PIPE_FORMAT_R8G8B8A8_UNORM
;
1081 case PIPE_FORMAT_R8G8B8X8_SRGB
:
1082 return PIPE_FORMAT_R8G8B8X8_UNORM
;
1083 case PIPE_FORMAT_DXT1_SRGB
:
1084 return PIPE_FORMAT_DXT1_RGB
;
1085 case PIPE_FORMAT_DXT1_SRGBA
:
1086 return PIPE_FORMAT_DXT1_RGBA
;
1087 case PIPE_FORMAT_DXT3_SRGBA
:
1088 return PIPE_FORMAT_DXT3_RGBA
;
1089 case PIPE_FORMAT_DXT5_SRGBA
:
1090 return PIPE_FORMAT_DXT5_RGBA
;
1091 case PIPE_FORMAT_B5G6R5_SRGB
:
1092 return PIPE_FORMAT_B5G6R5_UNORM
;
1093 case PIPE_FORMAT_BPTC_SRGBA
:
1094 return PIPE_FORMAT_BPTC_RGBA_UNORM
;
1095 case PIPE_FORMAT_ETC2_SRGB8
:
1096 return PIPE_FORMAT_ETC2_RGB8
;
1097 case PIPE_FORMAT_ETC2_SRGB8A1
:
1098 return PIPE_FORMAT_ETC2_RGB8A1
;
1099 case PIPE_FORMAT_ETC2_SRGBA8
:
1100 return PIPE_FORMAT_ETC2_RGBA8
;
1101 case PIPE_FORMAT_ASTC_4x4_SRGB
:
1102 return PIPE_FORMAT_ASTC_4x4
;
1103 case PIPE_FORMAT_ASTC_5x4_SRGB
:
1104 return PIPE_FORMAT_ASTC_5x4
;
1105 case PIPE_FORMAT_ASTC_5x5_SRGB
:
1106 return PIPE_FORMAT_ASTC_5x5
;
1107 case PIPE_FORMAT_ASTC_6x5_SRGB
:
1108 return PIPE_FORMAT_ASTC_6x5
;
1109 case PIPE_FORMAT_ASTC_6x6_SRGB
:
1110 return PIPE_FORMAT_ASTC_6x6
;
1111 case PIPE_FORMAT_ASTC_8x5_SRGB
:
1112 return PIPE_FORMAT_ASTC_8x5
;
1113 case PIPE_FORMAT_ASTC_8x6_SRGB
:
1114 return PIPE_FORMAT_ASTC_8x6
;
1115 case PIPE_FORMAT_ASTC_8x8_SRGB
:
1116 return PIPE_FORMAT_ASTC_8x8
;
1117 case PIPE_FORMAT_ASTC_10x5_SRGB
:
1118 return PIPE_FORMAT_ASTC_10x5
;
1119 case PIPE_FORMAT_ASTC_10x6_SRGB
:
1120 return PIPE_FORMAT_ASTC_10x6
;
1121 case PIPE_FORMAT_ASTC_10x8_SRGB
:
1122 return PIPE_FORMAT_ASTC_10x8
;
1123 case PIPE_FORMAT_ASTC_10x10_SRGB
:
1124 return PIPE_FORMAT_ASTC_10x10
;
1125 case PIPE_FORMAT_ASTC_12x10_SRGB
:
1126 return PIPE_FORMAT_ASTC_12x10
;
1127 case PIPE_FORMAT_ASTC_12x12_SRGB
:
1128 return PIPE_FORMAT_ASTC_12x12
;
1129 case PIPE_FORMAT_ASTC_3x3x3_SRGB
:
1130 return PIPE_FORMAT_ASTC_3x3x3
;
1131 case PIPE_FORMAT_ASTC_4x3x3_SRGB
:
1132 return PIPE_FORMAT_ASTC_4x3x3
;
1133 case PIPE_FORMAT_ASTC_4x4x3_SRGB
:
1134 return PIPE_FORMAT_ASTC_4x4x3
;
1135 case PIPE_FORMAT_ASTC_4x4x4_SRGB
:
1136 return PIPE_FORMAT_ASTC_4x4x4
;
1137 case PIPE_FORMAT_ASTC_5x4x4_SRGB
:
1138 return PIPE_FORMAT_ASTC_5x4x4
;
1139 case PIPE_FORMAT_ASTC_5x5x4_SRGB
:
1140 return PIPE_FORMAT_ASTC_5x5x4
;
1141 case PIPE_FORMAT_ASTC_5x5x5_SRGB
:
1142 return PIPE_FORMAT_ASTC_5x5x5
;
1143 case PIPE_FORMAT_ASTC_6x5x5_SRGB
:
1144 return PIPE_FORMAT_ASTC_6x5x5
;
1145 case PIPE_FORMAT_ASTC_6x6x5_SRGB
:
1146 return PIPE_FORMAT_ASTC_6x6x5
;
1147 case PIPE_FORMAT_ASTC_6x6x6_SRGB
:
1148 return PIPE_FORMAT_ASTC_6x6x6
;
1155 * Given a depth-stencil format, return the corresponding stencil-only format.
1156 * For stencil-only formats, return the format unchanged.
1158 static inline enum pipe_format
1159 util_format_stencil_only(enum pipe_format format
)
1162 /* mask out the depth component */
1163 case PIPE_FORMAT_Z24_UNORM_S8_UINT
:
1164 return PIPE_FORMAT_X24S8_UINT
;
1165 case PIPE_FORMAT_S8_UINT_Z24_UNORM
:
1166 return PIPE_FORMAT_S8X24_UINT
;
1167 case PIPE_FORMAT_Z32_FLOAT_S8X24_UINT
:
1168 return PIPE_FORMAT_X32_S8X24_UINT
;
1170 /* stencil only formats */
1171 case PIPE_FORMAT_X24S8_UINT
:
1172 case PIPE_FORMAT_S8X24_UINT
:
1173 case PIPE_FORMAT_X32_S8X24_UINT
:
1174 case PIPE_FORMAT_S8_UINT
:
1179 return PIPE_FORMAT_NONE
;
1184 * Converts PIPE_FORMAT_*I* to PIPE_FORMAT_*R*.
1185 * This is identity for non-intensity formats.
1187 static inline enum pipe_format
1188 util_format_intensity_to_red(enum pipe_format format
)
1191 case PIPE_FORMAT_I8_UNORM
:
1192 return PIPE_FORMAT_R8_UNORM
;
1193 case PIPE_FORMAT_I8_SNORM
:
1194 return PIPE_FORMAT_R8_SNORM
;
1195 case PIPE_FORMAT_I16_UNORM
:
1196 return PIPE_FORMAT_R16_UNORM
;
1197 case PIPE_FORMAT_I16_SNORM
:
1198 return PIPE_FORMAT_R16_SNORM
;
1199 case PIPE_FORMAT_I16_FLOAT
:
1200 return PIPE_FORMAT_R16_FLOAT
;
1201 case PIPE_FORMAT_I32_FLOAT
:
1202 return PIPE_FORMAT_R32_FLOAT
;
1203 case PIPE_FORMAT_I8_UINT
:
1204 return PIPE_FORMAT_R8_UINT
;
1205 case PIPE_FORMAT_I8_SINT
:
1206 return PIPE_FORMAT_R8_SINT
;
1207 case PIPE_FORMAT_I16_UINT
:
1208 return PIPE_FORMAT_R16_UINT
;
1209 case PIPE_FORMAT_I16_SINT
:
1210 return PIPE_FORMAT_R16_SINT
;
1211 case PIPE_FORMAT_I32_UINT
:
1212 return PIPE_FORMAT_R32_UINT
;
1213 case PIPE_FORMAT_I32_SINT
:
1214 return PIPE_FORMAT_R32_SINT
;
1216 assert(!util_format_is_intensity(format
));
1222 * Converts PIPE_FORMAT_*L* to PIPE_FORMAT_*R*.
1223 * This is identity for non-luminance formats.
1225 static inline enum pipe_format
1226 util_format_luminance_to_red(enum pipe_format format
)
1229 case PIPE_FORMAT_L8_UNORM
:
1230 return PIPE_FORMAT_R8_UNORM
;
1231 case PIPE_FORMAT_L8_SNORM
:
1232 return PIPE_FORMAT_R8_SNORM
;
1233 case PIPE_FORMAT_L16_UNORM
:
1234 return PIPE_FORMAT_R16_UNORM
;
1235 case PIPE_FORMAT_L16_SNORM
:
1236 return PIPE_FORMAT_R16_SNORM
;
1237 case PIPE_FORMAT_L16_FLOAT
:
1238 return PIPE_FORMAT_R16_FLOAT
;
1239 case PIPE_FORMAT_L32_FLOAT
:
1240 return PIPE_FORMAT_R32_FLOAT
;
1241 case PIPE_FORMAT_L8_UINT
:
1242 return PIPE_FORMAT_R8_UINT
;
1243 case PIPE_FORMAT_L8_SINT
:
1244 return PIPE_FORMAT_R8_SINT
;
1245 case PIPE_FORMAT_L16_UINT
:
1246 return PIPE_FORMAT_R16_UINT
;
1247 case PIPE_FORMAT_L16_SINT
:
1248 return PIPE_FORMAT_R16_SINT
;
1249 case PIPE_FORMAT_L32_UINT
:
1250 return PIPE_FORMAT_R32_UINT
;
1251 case PIPE_FORMAT_L32_SINT
:
1252 return PIPE_FORMAT_R32_SINT
;
1254 case PIPE_FORMAT_LATC1_UNORM
:
1255 return PIPE_FORMAT_RGTC1_UNORM
;
1256 case PIPE_FORMAT_LATC1_SNORM
:
1257 return PIPE_FORMAT_RGTC1_SNORM
;
1259 case PIPE_FORMAT_L4A4_UNORM
:
1260 return PIPE_FORMAT_R4A4_UNORM
;
1262 case PIPE_FORMAT_L8A8_UNORM
:
1263 return PIPE_FORMAT_R8A8_UNORM
;
1264 case PIPE_FORMAT_L8A8_SNORM
:
1265 return PIPE_FORMAT_R8A8_SNORM
;
1266 case PIPE_FORMAT_L16A16_UNORM
:
1267 return PIPE_FORMAT_R16A16_UNORM
;
1268 case PIPE_FORMAT_L16A16_SNORM
:
1269 return PIPE_FORMAT_R16A16_SNORM
;
1270 case PIPE_FORMAT_L16A16_FLOAT
:
1271 return PIPE_FORMAT_R16A16_FLOAT
;
1272 case PIPE_FORMAT_L32A32_FLOAT
:
1273 return PIPE_FORMAT_R32A32_FLOAT
;
1274 case PIPE_FORMAT_L8A8_UINT
:
1275 return PIPE_FORMAT_R8A8_UINT
;
1276 case PIPE_FORMAT_L8A8_SINT
:
1277 return PIPE_FORMAT_R8A8_SINT
;
1278 case PIPE_FORMAT_L16A16_UINT
:
1279 return PIPE_FORMAT_R16A16_UINT
;
1280 case PIPE_FORMAT_L16A16_SINT
:
1281 return PIPE_FORMAT_R16A16_SINT
;
1282 case PIPE_FORMAT_L32A32_UINT
:
1283 return PIPE_FORMAT_R32A32_UINT
;
1284 case PIPE_FORMAT_L32A32_SINT
:
1285 return PIPE_FORMAT_R32A32_SINT
;
1287 /* We don't have compressed red-alpha variants for these. */
1288 case PIPE_FORMAT_LATC2_UNORM
:
1289 case PIPE_FORMAT_LATC2_SNORM
:
1290 return PIPE_FORMAT_NONE
;
1293 assert(!util_format_is_luminance(format
) &&
1294 !util_format_is_luminance_alpha(format
));
1299 static inline unsigned
1300 util_format_get_num_planes(enum pipe_format format
)
1302 switch (util_format_description(format
)->layout
) {
1303 case UTIL_FORMAT_LAYOUT_PLANAR3
:
1305 case UTIL_FORMAT_LAYOUT_PLANAR2
:
1312 static inline enum pipe_format
1313 util_format_get_plane_format(enum pipe_format format
, unsigned plane
)
1316 case PIPE_FORMAT_YV12
:
1317 case PIPE_FORMAT_YV16
:
1318 case PIPE_FORMAT_IYUV
:
1319 case PIPE_FORMAT_Y8_U8_V8_422_UNORM
:
1320 case PIPE_FORMAT_Y8_U8_V8_444_UNORM
:
1321 return PIPE_FORMAT_R8_UNORM
;
1322 case PIPE_FORMAT_NV12
:
1323 case PIPE_FORMAT_Y8_U8V8_422_UNORM
:
1324 return !plane
? PIPE_FORMAT_R8_UNORM
: PIPE_FORMAT_RG88_UNORM
;
1325 case PIPE_FORMAT_NV21
:
1326 return !plane
? PIPE_FORMAT_R8_UNORM
: PIPE_FORMAT_GR88_UNORM
;
1327 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1328 case PIPE_FORMAT_Y16_U16_V16_422_UNORM
:
1329 case PIPE_FORMAT_Y16_U16_V16_444_UNORM
:
1330 return PIPE_FORMAT_R16_UNORM
;
1331 case PIPE_FORMAT_P010
:
1332 case PIPE_FORMAT_P016
:
1333 case PIPE_FORMAT_Y16_U16V16_422_UNORM
:
1334 return !plane
? PIPE_FORMAT_R16_UNORM
: PIPE_FORMAT_R16G16_UNORM
;
1340 static inline unsigned
1341 util_format_get_plane_width(enum pipe_format format
, unsigned plane
,
1345 case PIPE_FORMAT_YV12
:
1346 case PIPE_FORMAT_YV16
:
1347 case PIPE_FORMAT_IYUV
:
1348 case PIPE_FORMAT_NV12
:
1349 case PIPE_FORMAT_NV21
:
1350 case PIPE_FORMAT_P010
:
1351 case PIPE_FORMAT_P016
:
1352 case PIPE_FORMAT_Y8_U8_V8_422_UNORM
:
1353 case PIPE_FORMAT_Y8_U8V8_422_UNORM
:
1354 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1355 case PIPE_FORMAT_Y16_U16_V16_422_UNORM
:
1356 case PIPE_FORMAT_Y16_U16V16_422_UNORM
:
1357 return !plane
? width
: (width
+ 1) / 2;
1363 static inline unsigned
1364 util_format_get_plane_height(enum pipe_format format
, unsigned plane
,
1368 case PIPE_FORMAT_YV12
:
1369 case PIPE_FORMAT_IYUV
:
1370 case PIPE_FORMAT_NV12
:
1371 case PIPE_FORMAT_NV21
:
1372 case PIPE_FORMAT_P010
:
1373 case PIPE_FORMAT_P016
:
1374 case PIPE_FORMAT_Y16_U16_V16_420_UNORM
:
1375 return !plane
? height
: (height
+ 1) / 2;
1376 case PIPE_FORMAT_YV16
:
1383 * Return the number of components stored.
1384 * Formats with block size != 1x1 will always have 1 component (the block).
1386 static inline unsigned
1387 util_format_get_nr_components(enum pipe_format format
)
1389 const struct util_format_description
*desc
= util_format_description(format
);
1390 return desc
->nr_channels
;
1394 * Return the index of the first non-void channel
1395 * -1 if no non-void channels
1398 util_format_get_first_non_void_channel(enum pipe_format format
)
1400 const struct util_format_description
*desc
= util_format_description(format
);
1403 for (i
= 0; i
< 4; i
++)
1404 if (desc
->channel
[i
].type
!= UTIL_FORMAT_TYPE_VOID
)
1414 * Whether this format is any 8-bit UNORM variant. Looser than
1415 * util_is_rgba8_variant (also includes alpha textures, for instance).
1419 util_format_is_unorm8(const struct util_format_description
*desc
)
1421 int c
= util_format_get_first_non_void_channel(desc
->format
);
1426 return desc
->is_unorm
&& desc
->is_array
&& desc
->channel
[c
].size
== 8;
1430 util_format_unpack_z_float(enum pipe_format format
, float *dst
,
1431 const void *src
, unsigned w
)
1433 const struct util_format_description
*desc
= util_format_description(format
);
1435 desc
->unpack_z_float(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1439 util_format_unpack_z_32unorm(enum pipe_format format
, uint32_t *dst
,
1440 const void *src
, unsigned w
)
1442 const struct util_format_description
*desc
= util_format_description(format
);
1444 desc
->unpack_z_32unorm(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1448 util_format_unpack_s_8uint(enum pipe_format format
, uint8_t *dst
,
1449 const void *src
, unsigned w
)
1451 const struct util_format_description
*desc
= util_format_description(format
);
1453 desc
->unpack_s_8uint(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1457 * Unpacks a row of color data to 32-bit RGBA, either integers for pure
1458 * integer formats (sign-extended for signed data), or 32-bit floats.
1461 util_format_unpack_rgba(enum pipe_format format
, void *dst
,
1462 const void *src
, unsigned w
)
1464 const struct util_format_description
*desc
= util_format_description(format
);
1466 desc
->unpack_rgba(dst
, 0, (const uint8_t *)src
, 0, w
, 1);
1470 util_format_pack_z_float(enum pipe_format format
, void *dst
,
1471 const float *src
, unsigned w
)
1473 const struct util_format_description
*desc
= util_format_description(format
);
1475 desc
->pack_z_float((uint8_t *)dst
, 0, src
, 0, w
, 1);
1479 util_format_pack_z_32unorm(enum pipe_format format
, void *dst
,
1480 const uint32_t *src
, unsigned w
)
1482 const struct util_format_description
*desc
= util_format_description(format
);
1484 desc
->pack_z_32unorm((uint8_t *)dst
, 0, src
, 0, w
, 1);
1488 util_format_pack_s_8uint(enum pipe_format format
, void *dst
,
1489 const uint8_t *src
, unsigned w
)
1491 const struct util_format_description
*desc
= util_format_description(format
);
1493 desc
->pack_s_8uint((uint8_t *)dst
, 0, src
, 0, w
, 1);
1497 * Packs a row of color data from 32-bit RGBA, either integers for pure
1498 * integer formats, or 32-bit floats. Values are clamped to the packed
1499 * representation's range.
1502 util_format_pack_rgba(enum pipe_format format
, void *dst
,
1503 const void *src
, unsigned w
)
1505 const struct util_format_description
*desc
= util_format_description(format
);
1507 if (util_format_is_pure_uint(format
))
1508 desc
->pack_rgba_uint((uint8_t *)dst
, 0, (const uint32_t *)src
, 0, w
, 1);
1509 else if (util_format_is_pure_sint(format
))
1510 desc
->pack_rgba_sint((uint8_t *)dst
, 0, (const int32_t *)src
, 0, w
, 1);
1512 desc
->pack_rgba_float((uint8_t *)dst
, 0, (const float *)src
, 0, w
, 1);
1516 * Format access functions for subrectangles
1520 util_format_read_4(enum pipe_format format
,
1521 void *dst
, unsigned dst_stride
,
1522 const void *src
, unsigned src_stride
,
1523 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1526 util_format_write_4(enum pipe_format format
,
1527 const void *src
, unsigned src_stride
,
1528 void *dst
, unsigned dst_stride
,
1529 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1532 util_format_read_4ub(enum pipe_format format
,
1533 uint8_t *dst
, unsigned dst_stride
,
1534 const void *src
, unsigned src_stride
,
1535 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1538 util_format_write_4ub(enum pipe_format format
,
1539 const uint8_t *src
, unsigned src_stride
,
1540 void *dst
, unsigned dst_stride
,
1541 unsigned x
, unsigned y
, unsigned w
, unsigned h
);
1544 * Generic format conversion;
1548 util_format_fits_8unorm(const struct util_format_description
*format_desc
);
1551 util_format_translate(enum pipe_format dst_format
,
1552 void *dst
, unsigned dst_stride
,
1553 unsigned dst_x
, unsigned dst_y
,
1554 enum pipe_format src_format
,
1555 const void *src
, unsigned src_stride
,
1556 unsigned src_x
, unsigned src_y
,
1557 unsigned width
, unsigned height
);
1560 util_format_translate_3d(enum pipe_format dst_format
,
1561 void *dst
, unsigned dst_stride
,
1562 unsigned dst_slice_stride
,
1563 unsigned dst_x
, unsigned dst_y
,
1565 enum pipe_format src_format
,
1566 const void *src
, unsigned src_stride
,
1567 unsigned src_slice_stride
,
1568 unsigned src_x
, unsigned src_y
,
1569 unsigned src_z
, unsigned width
,
1570 unsigned height
, unsigned depth
);
1573 * Swizzle operations.
1576 /* Compose two sets of swizzles.
1577 * If V is a 4D vector and the function parameters represent functions that
1578 * swizzle vector components, this holds:
1579 * swz2(swz1(V)) = dst(V)
1581 void util_format_compose_swizzles(const unsigned char swz1
[4],
1582 const unsigned char swz2
[4],
1583 unsigned char dst
[4]);
1585 /* Apply the swizzle provided in \param swz (which is one of PIPE_SWIZZLE_x)
1586 * to \param src and store the result in \param dst.
1587 * \param is_integer determines the value written for PIPE_SWIZZLE_1.
1589 void util_format_apply_color_swizzle(union pipe_color_union
*dst
,
1590 const union pipe_color_union
*src
,
1591 const unsigned char swz
[4],
1592 const boolean is_integer
);
1594 void pipe_swizzle_4f(float *dst
, const float *src
,
1595 const unsigned char swz
[4]);
1597 void util_format_unswizzle_4f(float *dst
, const float *src
,
1598 const unsigned char swz
[4]);
1601 util_format_snorm8_to_sint8(enum pipe_format format
);
1605 util_copy_rect(ubyte
* dst
, enum pipe_format format
,
1606 unsigned dst_stride
, unsigned dst_x
, unsigned dst_y
,
1607 unsigned width
, unsigned height
, const ubyte
* src
,
1608 int src_stride
, unsigned src_x
, unsigned src_y
);
1614 #endif /* ! U_FORMAT_H */