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Display pass tests: a virtual GPU gets the software tolerance (#3182)

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On a hosted macOS runner the_shader_is_the_reference found 168 of 16384
bytes one step off, just over the 1 % a real GPU is allowed.

Co-authored-by: Claude Opus 5.5 <noreply@anthropic.com>
This commit is contained in:
FredApps
2026-11-06 20:26:58 +01:00
committed by GitHub
co-authored by Claude Opus 5.5
parent 4465c0ea10
commit 4d21269adb
1 changed files with 3 additions and 1 deletions
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crates/ui-egui/src/display_gpu/tests.rs
+3 -1
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@@ -32,7 +32,9 @@ fn device() -> Option<Dev> {
pollster::block_on(adapter.request_device(&wgpu::DeviceDescriptor { label: Some("display pass tests"), ..Default::default() })).ok()?;
let info = adapter.get_info();
eprintln!("display pass tests on {:?} ({:?})", info.name, info.device_type);
Some(Dev { cpu: info.device_type == wgpu::DeviceType::Cpu, instance, adapter, device, queue })
// (macOS CI runners' Metal is a virtual "Apple Paravirtual device": it rounds like a software one)
let cpu = info.device_type == wgpu::DeviceType::Cpu || info.name.contains("Paravirtual");
Some(Dev { cpu, instance, adapter, device, queue })
}
/// `compare`'s result is exact, or (software rasterizers) at most 1 LSB on at most 1 % of bytes.