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desktop: If the preferred graphics backend is unavailable, pick another one and warn

This commit is contained in:
Nathan Adams 2024-02-27 20:58:34 +01:00
parent b9c6db1cb9
commit 8b589a9620
1 changed files with 14 additions and 2 deletions
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16
desktop/src/gui/controller.rs
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@ -48,18 +48,30 @@ impl GuiController {
initial_movie_url: Option<Url>,
no_gui: bool,
) -> anyhow::Result<Self> {
let backend: wgpu::Backends = preferences.graphics_backends().into();
let mut backend: wgpu::Backends = preferences.graphics_backends().into();
if wgpu::Backends::SECONDARY.contains(backend) {
tracing::warn!(
"{} graphics backend support may not be fully supported.",
format_list(&get_backend_names(backend), "and")
);
}
let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
let mut instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
backends: backend,
flags: wgpu::InstanceFlags::default().with_env(),
..Default::default()
});
if instance.enumerate_adapters(backend).is_empty() && backend != wgpu::Backends::all() {
tracing::warn!(
"Graphics backend {} is not available; falling back to any available backend",
format_list(&get_backend_names(backend), "and")
);
backend = wgpu::Backends::all();
instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
backends: backend,
flags: wgpu::InstanceFlags::default().with_env(),
..Default::default()
});
}
let surface = unsafe {
instance.create_surface_unsafe(wgpu::SurfaceTargetUnsafe::from_window(window.as_ref())?)
}?;