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egl: do not fail if desired swap interval cannot be selected

This commit is contained in:
Victor Brekenfeld 2020-05-22 23:07:53 +02:00
parent e8926da56c
commit eb1dc5de4f
1 changed files with 11 additions and 11 deletions
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22
src/backend/egl/display.rs
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@ -253,11 +253,17 @@ impl<B: native::Backend, N: native::NativeDisplay<B>> EGLDisplay<B, N> {
config_ids.set_len(num_configs as usize);
}
// TODO: Deeper swap intervals might have some uses
if config_ids.is_empty() {
return Err(Error::NoAvailablePixelFormat);
}
let desired_swap_interval = if attributes.vsync { 1 } else { 0 };
let config_ids = config_ids
.into_iter()
// try to select a config with the desired_swap_interval
// (but don't fail, as the margin might be very small on some cards and most configs are fine)
let config_id = config_ids
.iter()
.copied()
.map(|config| unsafe {
let mut min_swap_interval = 0;
wrap_egl_call(|| {
@ -293,14 +299,8 @@ impl<B: native::Backend, N: native::NativeDisplay<B>> EGLDisplay<B, N> {
.map_err(Error::ConfigFailed)?
.into_iter()
.flatten()
.collect::<Vec<_>>();
if config_ids.is_empty() {
return Err(Error::NoAvailablePixelFormat);
}
// TODO: Improve config selection
let config_id = config_ids[0];
.next()
.unwrap_or_else(|| config_ids[0]);
// analyzing each config
macro_rules! attrib {