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These formats are useful because they are often easier to produce on CPU than half-float formats, and abgr16161616 has both >= 10bpc color channels and adequate alpha, unlike abgr2101010. The 16-bpc textures created from buffers with these formats require the GL_EXT_texture_norm16 extension. As WL_SHM_FORMAT_ABGR16161616 was introduced in libwayland 1.20, update Weston's build requirements and CI. The formats also needed to be registered in the pixel format table, and defined in a fallback path if recent libdrm is not available. Signed-off-by: Manuel Stoeckl <code@mstoeckl.com>
50 lines
1.9 KiB
C
50 lines
1.9 KiB
C
/*
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* Copyright © 2012 Intel Corporation
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* Copyright © 2015,2019 Collabora, Ltd.
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* Copyright © 2016 NVIDIA Corporation
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice (including the
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* next paragraph) shall be included in all copies or substantial
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* portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*/
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#ifndef WESTON_DRM_FOURCC_H
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#define WESTON_DRM_FOURCC_H
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#include <drm_fourcc.h>
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/* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
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* some of the definitions here so that building Weston won't require
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* bleeding-edge kernel headers.
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*/
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#ifndef DRM_FORMAT_XYUV8888
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#define DRM_FORMAT_XYUV8888 fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
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#endif
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#ifndef DRM_FORMAT_XBGR16161616
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#define DRM_FORMAT_XBGR16161616 fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */
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#endif
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#ifndef DRM_FORMAT_ABGR16161616
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#define DRM_FORMAT_ABGR16161616 fourcc_code('A', 'B', '4', '8') /* [63:0] A:B:G:R 16:16:16:16 little endian */
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#endif
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#endif
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