Only initialize the Vulkan or EGL parts where possible.
When dmabufs or dmabuf formats are actually used, we still
initialize fully by creating both a Vulkan and EGL downloader.
This shortens the time to first commit from 149ms to 108ms.
This takes the `position` property and ensures children are sorted by
it, splits children by `pack-type` (also reversing the order of `end`
children), and handles children with `type="center"`.
If either a center child or end children exist, then the `GtkBox` is
converted to a `GtkCenterBox`, with `start-widget`/`end-widget` being a
nested `GtkBox` with the relevant children.
The splitting does cause some non-`object` children to sort differently
(hence the change to `office-runner.expected`.)
Just use two individual fields, so we can track if we've already
created each one. This also matches the individual fields we have
for the dmabuf formats.
And change preference order of downloaders
Previously, our order was mmap > vulkan > egl.
But depending on the hw (discrete vs integrated gpu), mmap
can be catastrophically slower (on the order of 20ms vs 1.5s).
So, change the order to egl > vulkan > mmap.
Note that this currently has less effect than we'd like to,
since we don't let the downloaders claim linear formats.
Some nodes like `GtkBox` need to process removed-in-GTK4 attributes to
correctly convert their contents. If the node children are processed
first, then those attributes are removed prematurely.
In the colorize and texture ops, print the tex rect. This is useful
because when adding new features with textures (like atlas usage), these
are the ops that I use for testing.
Instead of recreating frames from scratch every time, use an existing one.
This ensures that renderers don't need to recreate GPU resources every
time (like buffers and everything else that frames manage). It also
speeds up occasional render_texture() calls in default renderers.
This speeds up in particular the Vulkan renderer.
This is useful because cleaning up will do the final copies of texture
data.
It also means we use less memory, as we're going to release images that
were used in ops.
If no ops are recorded, then we don't need to wait for any ops to
finish.
Also fix the initial fence creation on Vulkan - we no longer need to
create it fixed because of the random cleanup() call at startup does no
longer happen.
There was a typo ‘phases happens’, but also some spurious whitespace and
slightly odd-sounding use of ‘we’ so I changed it to be phrased
passively.
Signed-off-by: Philip Withnall <pwithnall@gnome.org>
The Flatpak portal (and so far all other portals) live in the session
bus, not in the a11y bus.
Use the session bus to get the Flatpak portal version. Avoid too many
synchronous D-Bus calls on startup by using g_once_init_* helpers.
