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swapchain check present mode, default to vsync if selection is unsupported

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This commit is contained in:
Veykril
2019-12-28 13:34:07 +01:00
parent 6a963892b5
commit 9eab6fc19e
1 changed files with 30 additions and 14 deletions
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44
wgpu-core/src/device.rs
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@@ -2015,6 +2015,34 @@ impl<F: IdentityFilter<ComputePipelineId>> Global<F> {
}
}
fn validate_swap_chain_descriptor(
config: &mut hal::window::SwapchainConfig,
caps: &hal::window::SurfaceCapabilities,
) {
let width = config.extent.width;
let height = config.extent.height;
if width < caps.extents.start().width
|| width > caps.extents.end().width
|| height < caps.extents.start().height
|| height > caps.extents.end().height
{
log::warn!(
"Requested size {}x{} is outside of the supported range: {:?}",
width,
height,
caps.extents
);
}
if !caps.present_modes.contains(config.present_mode) {
log::warn!(
"Surface does not support present mode: {:?}, falling back to {:?}",
config.present_mode,
hal::window::PresentMode::FIFO
);
config.present_mode = hal::window::PresentMode::FIFO;
}
}
impl<F: IdentityFilter<SwapChainId>> Global<F> {
pub fn device_create_swap_chain<B: GfxBackend>(
&self,
@@ -2044,8 +2072,7 @@ impl<F: IdentityFilter<SwapChainId>> Global<F> {
let num_frames = swap_chain::DESIRED_NUM_FRAMES
.max(*caps.image_count.start())
.min(*caps.image_count.end());
let config = desc.to_hal(num_frames, &device.features);
let mut config = desc.to_hal(num_frames, &device.features);
if let Some(formats) = formats {
assert!(
formats.contains(&config.format),
@@ -2054,18 +2081,7 @@ impl<F: IdentityFilter<SwapChainId>> Global<F> {
formats
);
}
if desc.width < caps.extents.start().width
|| desc.width > caps.extents.end().width
|| desc.height < caps.extents.start().height
|| desc.height > caps.extents.end().height
{
log::warn!(
"Requested size {}x{} is outside of the supported range: {:?}",
desc.width,
desc.height,
caps.extents
);
}
validate_swap_chain_descriptor(&mut config, &caps);
unsafe {
B::get_surface_mut(surface)