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mesa: Add comments about bit-ordering of new XRGB/XBGR formats.

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Marek added these new formats in commit f9fa725690, but
without comments relating to the packing.  Sometimes the naming is
confusing, so these comments are helpful in determining whether two
formats are compatible.

The new comments are based on my reading of format_unpack.c.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Ian Romanick <ian.d.romanick@intel.com>
Reviewed-by: Marek Olšák <maraeo@gmail.com>
This commit is contained in:
Kenneth Graunke
2013-04-28 23:33:39 -07:00
parent f486c52f9e
commit a67b18e5a7
1 changed files with 15 additions and 15 deletions
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30
src/mesa/main/formats.h
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@@ -289,21 +289,21 @@ typedef enum
MESA_FORMAT_ARGB2101010_UINT,
MESA_FORMAT_ABGR2101010_UINT,
MESA_FORMAT_XRGB4444_UNORM,
MESA_FORMAT_XRGB1555_UNORM,
MESA_FORMAT_XBGR8888_SNORM,
MESA_FORMAT_XBGR8888_SRGB,
MESA_FORMAT_XBGR8888_UINT,
MESA_FORMAT_XBGR8888_SINT,
MESA_FORMAT_XRGB2101010_UNORM,
MESA_FORMAT_XBGR16161616_UNORM,
MESA_FORMAT_XBGR16161616_SNORM,
MESA_FORMAT_XBGR16161616_FLOAT,
MESA_FORMAT_XBGR16161616_UINT,
MESA_FORMAT_XBGR16161616_SINT,
MESA_FORMAT_XBGR32323232_FLOAT,
MESA_FORMAT_XBGR32323232_UINT,
MESA_FORMAT_XBGR32323232_SINT,
MESA_FORMAT_XRGB4444_UNORM, /* xxxx RRRR GGGG BBBB */
MESA_FORMAT_XRGB1555_UNORM, /* xRRR RRGG GGGB BBBB */
MESA_FORMAT_XBGR8888_SNORM, /* xxxx xxxx BBBB BBBB GGGG GGGG RRRR RRRR */
MESA_FORMAT_XBGR8888_SRGB, /* xxxx xxxx BBBB BBBB GGGG GGGG RRRR RRRR */
MESA_FORMAT_XBGR8888_UINT, /* xxxx xxxx BBBB BBBB GGGG GGGG RRRR RRRR */
MESA_FORMAT_XBGR8888_SINT, /* xxxx xxxx BBBB BBBB GGGG GGGG RRRR RRRR */
MESA_FORMAT_XRGB2101010_UNORM, /* xxRR RRRR RRRR GGGG GGGG GGBB BBBB BBBB */
MESA_FORMAT_XBGR16161616_UNORM,/* ushort[3]=x, [2]=B, [1]=G, [0]=R */
MESA_FORMAT_XBGR16161616_SNORM,/* ... */
MESA_FORMAT_XBGR16161616_FLOAT,/* ... */
MESA_FORMAT_XBGR16161616_UINT, /* ... */
MESA_FORMAT_XBGR16161616_SINT, /* ... */
MESA_FORMAT_XBGR32323232_FLOAT,/* float[3]=x, [2]=B, [1]=G, [0]=R */
MESA_FORMAT_XBGR32323232_UINT, /* ... */
MESA_FORMAT_XBGR32323232_SINT, /* ... */
MESA_FORMAT_COUNT
} gl_format;