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Desktop: Prefer Vulkan as the WGPU backend on Linux (#4270)

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* Manual wgpu adapter selection

* Fall back to remaining adapters when the preferred one fails to initialize
This commit is contained in:
Timon
2026-06-25 00:09:39 +00:00
committed by GitHub
parent ebbbb6bd1b
commit 6fb6e83d68
3 changed files with 61 additions and 49 deletions
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desktop/src/gpu_context.rs
+8 -10
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@@ -1,20 +1,18 @@
use crate::wrapper::{WgpuContext, WgpuContextBuilder, WgpuFeatures};
pub(super) async fn create_wgpu_context() -> WgpuContext {
let wgpu_context_builder = WgpuContextBuilder::new().with_features(WgpuFeatures::IMMEDIATES);
let mut wgpu_context_builder = WgpuContextBuilder::new().with_features(WgpuFeatures::IMMEDIATES);
// TODO: make this configurable via cli flags instead
if let Some(index) = std::env::var("GRAPHITE_WGPU_ADAPTER").ok().and_then(|s| s.parse().ok()) {
tracing::info!("Overriding WGPU adapter selection with adapter index {index}");
wgpu_context_builder = wgpu_context_builder.with_selection(index);
}
// TODO: add a cli flag to list adapters and exit instead of always printing
println!("\nAvailable WGPU adapters:\n{}", wgpu_context_builder.available_adapters_fmt().await);
// TODO: make this configurable via cli flags instead
let wgpu_context = match std::env::var("GRAPHITE_WGPU_ADAPTER").ok().and_then(|s| s.parse().ok()) {
None => wgpu_context_builder.build().await,
Some(adapter_index) => {
tracing::info!("Overriding WGPU adapter selection with adapter index {adapter_index}");
wgpu_context_builder.build_with_adapter_selection(|_| Some(adapter_index)).await
}
}
.expect("Failed to create WGPU context");
let wgpu_context = wgpu_context_builder.build().await.expect("Failed to create WGPU context");
// TODO: add a cli flag to list adapters and exit instead of always printing
println!("Using WGPU adapter: {:?}", wgpu_context.adapter.get_info());