udmabuf can create a DMA-BUF backed by a memfd. This is useful
when running with a software implementation of GL/Vulkan: the memfd
can be passed to the parent compositor via wl_shm and the DMA-BUF
can be imported via the usual APIs into GL/Vulkan.
Add Meson wrap manifests for all of our dependencies which can
fallback to a subproject. This makes it easier to build wlroots
on platforms where system packages are outdated. Users can now
opt-in via `meson configure --wrap-mode=default` and Meson will
download and build any missing dependency.
Don't download by default because this can be quite surprising and
undesirable for some users (e.g. if they are just missing some -dev
package).
Match the pkg-config name in the meson.override_dependency() call.
Fixes: 4b4f76cc13 ("Version pkgconfig, headers, and library for parallel installation")
Since wlroots almost always significantly breaks API each minor release,
allowing parallel installation of wlroots helps packagers deal with
programs that require conflicting versions of wlroots.
Closes: #3786
Stop trying to maintain a per-file _POSIX_C_SOURCE. Instead,
require POSIX.1-2008 globally. A lot of core source files depend
on that already.
Some care must be taken on a few select files where we need a bit
more than POSIX. Some files need XSI extensions (_XOPEN_SOURCE) and
some files need BSD extensions (_DEFAULT_SOURCE). In both cases,
these feature test macros imply _POSIX_C_SOURCE. Make sure to not
define both these macros and _POSIX_C_SOURCE explicitly to avoid
POSIX requirement conflicts (e.g. _POSIX_C_SOURCE says POSIX.1-2001
but _XOPEN_SOURCE says POSIX.1-2008).
Additionally, there is one special case in render/vulkan/vulkan.c.
That file needs major()/minor(), and these are system-specific.
On FreeBSD, _POSIX_C_SOURCE hides system-specific symbols so we need
to make sure it's not defined for this file. On Linux, we can
explicitly include <sys/sysmacros.h> and ensure that apart from
symbols defined there the file only uses POSIX toys.
Instead of requiring a manual soversion bump each time we do a
release, automatically compute it from the version number.
In the early days we used to not bump soversion, so there is an
hardcoded offset.
This will need to be updated once we ship 1.0, so assert that we're
still on 0.x.
RMFB implicitly performs a modeset to turn off any CRTC which is
using the FB. This prevents seamless transitions between two DRM
masters from working.
Use the new CLOSEFB IOCTL which doesn't turn off anything and leave
it up to the compositor to turn off outputs on shutdown if it wants
to.
This avoids re-building the whole project when switching one
Meson option. This shrinks down the compiler invocation command
line, making it more readable and making it easier to inspect
which flags are passed in (the generated file can be opened).
Additionally this is more consistent with our external feature
handling, which uses <wlr/config.h> already.
Instead of having a C file with strings for each shader, move each
shader into its own file. Use a small POSIX shell script to convert
the files into C strings (can't wait for C23 #embed...).
The benefits from this are:
- Improved readability and syntax highlighting.
- Line numbers in shader compiler errors are easier to make sense of.
- Consistency with the Vulkan renderer.
- Shaders will become more complicated as we add color management
features.
Libdrm now uses enabled/disabled/auto for the drivers, migrate to these
new defaults.
Error message from meson:
wlroots| subprojects/wlroots/subprojects/libdrm/meson.build:21:0: Exception: Value "false" (of type "string") for combo option "Enable support for Intel's KMS API." is not one of the choices. Possible choices are (as string): "enabled", "disabled", "auto".`
