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f35cd3fa77
Select color format for EFI/VESA firmware scanout buffer from the number of bits per pixel and the position of the individual color components. Fixes the selected format for the buffer in several odd cases. For example, XRGB1555 has been reported as ARGB1555 because of the different use of depth and transparency in VESA and Linux. Bits-per-pixel is always the pixel's raw number of bits; including alpha and filler bits. It is preferred over color depth, which has a different meaning among various components and standards. Also do not compare reserved bits and transparency bits to each other. These values have different meanings, as reserved bits include filler bits while transparency does not. Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20230102112927.26565-2-tzimmermann@suse.de
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.