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Merge #124

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124: Configure Swapchain with supported composite_alpha r=kvark a=silphendio

CompositeAlpha::Inherit (default) is not supported on every graphics card.
Relevant : https://github.com/gfx-rs/gfx/issues/2507

Co-authored-by: Markus Ginthör <markus.ginthoer@gmx.at>
This commit is contained in:
bors[bot] 2019-04-22 16:35:17 +00:00
commit 4431df63d8
1 changed files with 3 additions and 2 deletions
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5
wgpu-native/src/device.rs
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@ -1534,7 +1534,7 @@ pub fn device_create_swap_chain(
let mut surface_guard = HUB.surfaces.write();
let surface = &mut surface_guard[surface_id];
let (caps, formats, _present_modes, _composite_alphas) = {
let (caps, formats, _present_modes, composite_alphas) = {
let adapter_guard = HUB.adapters.read();
let adapter = &adapter_guard[device.adapter_id];
assert!(surface
@ -1544,12 +1544,13 @@ pub fn device_create_swap_chain(
};
let num_frames = caps.image_count.start; //TODO: configure?
let usage = conv::map_texture_usage(desc.usage, hal::format::Aspects::COLOR);
let config = hal::SwapchainConfig::new(
let mut config = hal::SwapchainConfig::new(
desc.width,
desc.height,
conv::map_texture_format(desc.format),
num_frames, //TODO: configure?
);
config.composite_alpha = *composite_alphas.iter().next().unwrap();
if let Some(formats) = formats {
assert!(