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webgpu: allow using Gl backend

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This works for me on my radeon drivers.

It undoes a bail out that I added as part of 3565.

I'm not sure how best to handle the broken virtualbox driver situation
at this time.

refs: https://github.com/wez/wezterm/issues/3691
refs: https://github.com/wez/wezterm/issues/3565
This commit is contained in:
Wez Furlong 2023-05-07 10:34:59 -07:00
parent 27fbff4ae1
commit 349ce3cf3c
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GPG Key ID: 7A7F66A31EC9B387
1 changed files with 4 additions and 13 deletions
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17
wezterm-gui/src/termwindow/webgpu.rs
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@ -296,6 +296,8 @@ impl WebGpuState {
log::trace!("Using adapter: {adapter_info:?}");
let caps = surface.get_capabilities(&adapter);
log::trace!("caps: {caps:?}");
let downlevel_caps = adapter.get_downlevel_capabilities();
log::trace!("downlevel_caps: {downlevel_caps:?}");
let (device, queue) = adapter
.request_device(
@ -306,7 +308,7 @@ impl WebGpuState {
limits: if cfg!(target_arch = "wasm32") {
wgpu::Limits::downlevel_webgl2_defaults()
} else {
wgpu::Limits::default()
wgpu::Limits::downlevel_defaults()
},
label: None,
},
@ -324,7 +326,6 @@ impl WebGpuState {
caps.formats[0]
};
let downlevel_caps = adapter.get_downlevel_capabilities();
// Need to check that this is supported, as trying to set
// view_formats without it will cause surface.configure
// to panic
@ -335,17 +336,7 @@ impl WebGpuState {
{
vec![format.add_srgb_suffix(), format.remove_srgb_suffix()]
} else {
log::warn!(
"Attempting to use adapter: {adapter_info:?} \
which has capabilities: {caps:?} \
and downlevel capabilities: {downlevel_caps:?}. \
SURFACE_VIEW_FORMATS is required but not supported"
);
anyhow::bail!(
"wgpu reports that SURFACE_VIEW_FORMATS is not \
supported. Please try a different adapter or setting front_end='OpenGL'"
);
vec![]
};
let config = wgpu::SurfaceConfiguration {