Replace ios specific cfgs with "apple but not macOS", dubbed
ios_and_friends, so that we also cover iPadOS, etc.. What those have in
common is that they don't have user-resizable windows. (We might want to
add visionOs in the future)
Also, simplify a few macos or ios cfgs with just target_vendor =
"apple", for what applies to all the operating systems.
With the drm output now waiting for the page flip on render *and* gbm and dumb buffer displays supporting triple buffering,
we don't need the entire async page flip handling logic anymore.
In the future we could turn wait_for_page_flip() into an async fn.
Updated the version from 1.1 to 1.2
Renamed the header to "Slint Royalty-free Desktop, Mobile, and Web Applications License"
Added definition of "Mobile Application" and grant of right
Moved "Limitations" to 3rd section and "License Conditions - Attributions" to 2nd section
Added flexibility to choose between showing "MadeWithSlint" as a dialog/splash screen or on a public webpage
Moved the para on copyright notices to section under "Limitations"
The event loop roughly loops like this:
loop {
update_timers_and_animations();
render();
sleep_or_dispatch_events();
}
sleep_or_dispatch_events() will wake up when we receive a queued callback from invoke_from_event_loop, and we would
run the callback right away. If that callback sets animated properties, the start time for animations would be incorrect, as we haven't called update_timers_and_animations() yet.
So instead, let's keep track of any received callbacks per sleep cycle, update the animation tick, and then invoke the callbacks.
This is the initial implementation based on DRM dumb buffers,
which cleans up various things at the same time:
- DRM output is separate from GBM and DRM dumb buffer displays.
The latter two re-use the former.
- The timer refresh for the Vulkan KHR Display rendering lives
now with the KHR display code, in hope to be replaced with a
better mechanism in the future.
What's missing still is support for partial updates as well as
rendering with our own software renderer.
That's less boiler plate for us and better error handling (note how the receive_events()
call on the DRM device now propagates the error). And this also unregisters automatically
on drop.
... instead pass the fd into the calloop event loop and change state when we receive activity on it.
This improves performance slightly, and is a necessary to be able to implement refresh rate throttled rendering (in the next commits).
This patch adds support for the `SLINT_KMS_ROTATION` environment
variable, that instructs the Skia/FemtoVG renderers to rotate
the scene before rendering.
Unfortunately, this is currently not mapped to the right keyboard layout
Also keep the mouse clamped in the visible area.
And make it start in the middle of the screen.
The cursor is loaded by the window adapter from the cache. When it's
loaded the first time, its format will be Svg, so we convert it to a
pixel buffer. That way the skia backend can convert it on first draw
into a skia_safe::Image and replace the cache entry with the backend
storage variant.
This doesn't require a windowing system, just Linux and Vulkan drivers
that supports the display extensions.
It's called linuxkms as soon this will go beyond Vulkan and also support
EGL and perhaps dumb buffers for software rendering.
