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hal: check for surface caps in the example (#2298)

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This commit is contained in:
Dzmitry Malyshau
2021-12-16 16:41:45 -05:00
committed by GitHub
parent f42342bbbf
commit 18f644e19b
1 changed files with 8 additions and 5 deletions
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13
wgpu-hal/examples/halmark/main.rs
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@@ -11,6 +11,7 @@ const BUNNY_SIZE: f32 = 0.15 * 256.0;
const GRAVITY: f32 = -9.8 * 100.0;
const MAX_VELOCITY: f32 = 750.0;
const COMMAND_BUFFER_PER_CONTEXT: usize = 100;
const DESIRED_FRAMES: u32 = 3;
#[repr(C)]
#[derive(Clone, Copy)]
@@ -96,12 +97,12 @@ impl<A: hal::Api> Example<A> {
return Err(hal::InstanceError);
}
let exposed = adapters.swap_remove(0);
println!(
"Surface caps: {:?}",
exposed.adapter.surface_capabilities(&surface)
);
(exposed.adapter, exposed.capabilities)
};
let surface_caps =
unsafe { adapter.surface_capabilities(&surface) }.ok_or(hal::InstanceError)?;
log::info!("Surface caps: {:#?}", surface_caps);
let hal::OpenDevice { device, mut queue } = unsafe {
adapter
.open(wgt::Features::empty(), &wgt::Limits::default())
@@ -110,7 +111,9 @@ impl<A: hal::Api> Example<A> {
let window_size: (u32, u32) = window.inner_size().into();
let surface_config = hal::SurfaceConfiguration {
swap_chain_size: 3,
swap_chain_size: DESIRED_FRAMES
.max(*surface_caps.swap_chain_sizes.start())
.min(*surface_caps.swap_chain_sizes.end()),
present_mode: wgt::PresentMode::Fifo,
composite_alpha_mode: hal::CompositeAlphaMode::Opaque,
format: wgt::TextureFormat::Bgra8UnormSrgb,