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Merge pull request #667 from BillyDM/wgpu_outdatedframe

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Don't panic when wgpu swapchain frame is outdated
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Héctor Ramón 2021-08-05 14:44:32 +07:00 • committed by GitHub
commit 45778ed598
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5 changed files with 180 additions and 109 deletions
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99
examples/integration/src/main.rs
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@ -172,55 +172,66 @@ 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::OutOfMemory => {
panic!("Swapchain error: {}. Rendering cannot continue.", error)
}
_ => {
// Try rendering again next frame.
window.request_redraw();
}
},
}
// 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();
}
_ => {}
}