unreachable() is used to hint to the compiler that a certain branch
cannot ever be reached. The implementation is taken from Mesa.
Signed-off-by: Daniel Stone <daniels@collabora.com>
This is a new function exporting macro that intends to make writing unit
tests in the Weston test suite easier.
A test needs to access a private function to be able to verify its
behavior. Previously we have used things like putting such functions in
a separate .c file and then building that file into the corresponding
test. That is a bit awkward and can lead to proliferation of arbitrary
.c files for no good reason. It may also require pre-processor magic,
and sometimes copying chunks of code causing a risk of deviating the
code being tested from the code actually used.
This patch proposes another approach: a private export from a DSO.
Except, private exports do not really exist, and this is just a normal
export with a specific C macro, and omitting the function from public
headers.
Once exported, a test program can link the DSO during build, be that a
shared library or even a plugin, use the private header declaring the
function, and simply call the function in the test.
The declaration of WESTON_EXPORT_FOR_TESTS is in shared/helpers.h so
that it is available to all components equally while still not being in
a public header. Other places that were considered:
- include/libweston/libweston.h is a public header, but external users
should not know about the macro.
- libweston/libweston-private.h is too private and not available to all
components, particularly color-lcms plugin.
- libweston/backend.h is not appropriate for color-lcms plugin either.
Signed-off-by: Pekka Paalanen <pekka.paalanen@collabora.com>
In commit "backend-drm: simplify compile time array copy", the macro
ARRAY_COPY was introduced.
The macro STRING was accidentally introduced in the same commit, and as
it is completely unnecessary, remove it.
Also, memcpy was copying from src to dst, and it should do the opposite.
So fix it.
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
In drm_fb_get_from_dmabuf() we have some compile time array copies, and
multiple static_assert() calls are needed (for safety). This makes the
code unpleasant to read.
Add ARRAY_COPY macro, to simplify the code.
Signed-off-by: Leandro Ribeiro <leandro.ribeiro@collabora.com>
Collect the fallback definitions of static_assert() from desktop-shell
and the test shell, and move them to helpers.h. This allows code
throughout the tree to use static_assert() for build-time assertions,
where it is supported by the compiler.
As GCC goes out of its way to only add static_assert() when C11 has been
explicitly requested - which we don't do - make sure to use the more
widely available _Static_assert() if that is provided.
This will be used in future patches to ensure two array lengths don't go
out of sync.
Signed-off-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Pekka Paalanen <pekka.paalanen@collabora.co.uk>
All the shell protocol details, Xwayland glue and popups (and their
grab) are now handled in libweston-desktop.
Fullscreen methods (for wl_shell) are removed for now.
Signed-off-by: Quentin Glidic <sardemff7+git@sardemff7.net>
Reviewed-by: Jonas Ådahl <jadahl@gmail.com>
Acked-by: Giulio Camuffo <giulio.camuffo@kdab.com>
Differential Revision: https://phabricator.freedesktop.org/D1209
Removed duplicate definitions of the container_of() macro and
refactored sources to use the single implementation.
Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
Removed multiple definitions of the MIN() macro from existing
locations and unified with a single definition. Updated sources
to use the shared version.
Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
To help reduce code duplication and also 'kitchen-sink' includes
the ARRAY_LENGTH macro was moved to a stand-alone file and
referenced from the sources consuming it. Other macros will be
added in subsequent passes.
Signed-off-by: Jon A. Cruz <jonc@osg.samsung.com>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
Reviewed-by: Bryce Harrington <bryce@osg.samsung.com>
