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don't panic when swapchain frame is outdated

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This commit is contained in:
Billy Messenger 2020-12-16 10:03:51 -06:00
parent a42b3c6998
commit 4e391013c8
4 changed files with 140 additions and 108 deletions
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97
examples/integration/src/main.rs
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@ -168,55 +168,64 @@ pub fn main() {
resized = false;
}
let frame = swap_chain.get_current_frame().expect("Next frame");
match swap_chain.get_current_frame() {
Ok(frame) => {
let mut encoder = device.create_command_encoder(
&wgpu::CommandEncoderDescriptor { label: None },
);
let mut encoder = device.create_command_encoder(
&wgpu::CommandEncoderDescriptor { label: None },
);
let program = state.program();
let program = state.program();
{
// We clear the frame
let mut render_pass = scene.clear(
&frame.output.view,
&mut encoder,
program.background_color(),
);
{
// We clear the frame
let mut render_pass = scene.clear(
&frame.output.view,
&mut encoder,
program.background_color(),
);
// Draw the scene
scene.draw(&mut render_pass);
}
// Draw the scene
scene.draw(&mut render_pass);
// And then iced on top
let mouse_interaction = renderer.backend_mut().draw(
&mut device,
&mut staging_belt,
&mut encoder,
&frame.output.view,
&viewport,
state.primitive(),
&debug.overlay(),
);
// Then we submit the work
staging_belt.finish();
queue.submit(Some(encoder.finish()));
// Update the mouse cursor
window.set_cursor_icon(
iced_winit::conversion::mouse_interaction(
mouse_interaction,
),
);
// And recall staging buffers
local_pool
.spawner()
.spawn(staging_belt.recall())
.expect("Recall staging buffers");
local_pool.run_until_stalled();
}
Err(error) => match error {
wgpu::SwapChainError::Outdated => {
// Try rendering again next frame.
window.request_redraw();
}
_ => panic!("Swapchain error: {:?}", error),
},
}
// And then iced on top
let mouse_interaction = renderer.backend_mut().draw(
&mut device,
&mut staging_belt,
&mut encoder,
&frame.output.view,
&viewport,
state.primitive(),
&debug.overlay(),
);
// Then we submit the work
staging_belt.finish();
queue.submit(Some(encoder.finish()));
// Update the mouse cursor
window.set_cursor_icon(
iced_winit::conversion::mouse_interaction(
mouse_interaction,
),
);
// And recall staging buffers
local_pool
.spawner()
.spawn(staging_belt.recall())
.expect("Recall staging buffers");
local_pool.run_until_stalled();
}
_ => {}
}