weston/shared/weston-drm-fourcc.h
Manuel Stoeckl b0ed4a2e3b gl-renderer: add support for (a|x)bgr16161616 shm formats
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>
2022-02-02 11:58:58 +00:00

50 lines
1.9 KiB
C

/*
* Copyright © 2012 Intel Corporation
* Copyright © 2015,2019 Collabora, Ltd.
* Copyright © 2016 NVIDIA Corporation
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial
* portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#ifndef WESTON_DRM_FOURCC_H
#define WESTON_DRM_FOURCC_H
#include <drm_fourcc.h>
/* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
* some of the definitions here so that building Weston won't require
* bleeding-edge kernel headers.
*/
#ifndef DRM_FORMAT_XYUV8888
#define DRM_FORMAT_XYUV8888 fourcc_code('X', 'Y', 'U', 'V') /* [31:0] X:Y:Cb:Cr 8:8:8:8 little endian */
#endif
#ifndef DRM_FORMAT_XBGR16161616
#define DRM_FORMAT_XBGR16161616 fourcc_code('X', 'B', '4', '8') /* [63:0] x:B:G:R 16:16:16:16 little endian */
#endif
#ifndef DRM_FORMAT_ABGR16161616
#define DRM_FORMAT_ABGR16161616 fourcc_code('A', 'B', '4', '8') /* [63:0] A:B:G:R 16:16:16:16 little endian */
#endif
#endif