Add debug logging to egl via the `EGL_KHR_debug` extension similar to our
support for `GL_KHR_debug`. Sadly unlike the GL-extensions the EGL-extension
does not let us provide any user-data for the callback, so we fall back to
using `slog-stdlog`, when available.
Since we only want to initialize this once, when libEGL gets loaded and
not per display, but we need to query the list of supported extensions
first, some initialization steps where moved around.
The required surface attributes for egl surface creation might be very
dependent on the used egl platform. Therefor let the native surface type
handle the attributes instead of deriving them from a set of properties.
Removes the notion of Seats from `InputBackend` and replaces it with
`DeviceAdded` and `DeviceRemoved` events allowing compositors to
descriminate between single devices.
A new abstraction to model multiple seats on a single input backend
may be be added separately at a later time.
This changes the state handling logic of wl_surface to automatically
track subsurface pending in the form of transactions. The role enum
(and the associated type parameter) is no more, and replaced by a
general-purpose typemap-like container on surfaces.
The new logic is introduced in the files:
- `src/wayland/compositor/cache.rs`
- `src/wayland/compositor/transaction.rs`
The rest of the PR is the fallout of these changes, as well as a few
trivial clippy fixes.
Removes the renderer from the `DrmRenderSurface` allowing anvil
to use just one renderer per backend.
Since the old `DrmRenderSurface` was dependant on gbm anyway to import
buffers, the new `GbmBufferedSurface` does now only supports gbm as an allocator,
which hugely simplifies the code and also skips some unnecessary imports/exports.
This change fixes modifier selection by delegating this to the allocators
and thus to libgbm, which can ask the driver for an appropriate modifier
for scanout, that results in the best possible performance.
We do not have this information, the order in which modifiers are returned
by EGL has no meaning and this is far better then testing modifiers
non-deterministically at random and choosing the first one, that does
not error out...