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Never prefer CPU devices over GPUs

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This commit is contained in:
Greg V
2020-10-09 21:45:59 +03:00
parent c691570c60
commit 072b94c9fd
1 changed files with 8 additions and 4 deletions
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12
wgpu-core/src/instance.rs
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@@ -628,7 +628,8 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
return Err(RequestAdapterError::NotFound);
}
let (mut integrated, mut discrete, mut virt, mut other) = (None, None, None, None);
let (mut integrated, mut discrete, mut virt, mut cpu, mut other) =
(None, None, None, None, None);
for (i, ty) in device_types.into_iter().enumerate() {
match ty {
@@ -641,15 +642,18 @@ impl<G: GlobalIdentityHandlerFactory> Global<G> {
hal::adapter::DeviceType::VirtualGpu => {
virt = virt.or(Some(i));
}
_ => {
hal::adapter::DeviceType::Cpu => {
cpu = cpu.or(Some(i));
}
hal::adapter::DeviceType::Other => {
other = other.or(Some(i));
}
}
}
let preferred_gpu = match desc.power_preference {
PowerPreference::LowPower => integrated.or(other).or(discrete).or(virt),
PowerPreference::HighPerformance => discrete.or(other).or(integrated).or(virt),
PowerPreference::LowPower => integrated.or(other).or(discrete).or(virt).or(cpu),
PowerPreference::HighPerformance => discrete.or(other).or(integrated).or(virt).or(cpu),
};
let mut selected = preferred_gpu.unwrap_or(0);