Log available formats and alpha modes in wgpu::window::compositor

iced-rs · Feb 9, 2024 · 8a8c1ab · 8a8c1ab
1 parent 81bed94
commit 8a8c1ab
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Showing 3 changed files with 14 additions and 4 deletions.
diff --git a/examples/gradient/Cargo.toml b/examples/gradient/Cargo.toml
@@ -5,4 +5,7 @@ edition = "2021"
 publish = false
 
 [dependencies]
-iced = { path = "../.." }
+iced.workspace = true
+iced.features = ["debug"]
+
+tracing-subscriber = "0.3"
diff --git a/examples/gradient/src/main.rs b/examples/gradient/src/main.rs
@@ -9,6 +9,8 @@ use iced::{
 };
 
 pub fn main() -> iced::Result {
+    tracing_subscriber::fmt::init();
+
     Gradient::run(Settings {
         window: window::Settings {
             transparent: true,

diff --git a/wgpu/src/window/compositor.rs b/wgpu/src/window/compositor.rs
@@ -68,6 +68,8 @@ impl Compositor {
 
                 let mut formats = capabilities.formats.iter().copied();
 
+                log::info!("Available formats: {formats:#?}");
+
                 let format = if color::GAMMA_CORRECTION {
                     formats.find(wgpu::TextureFormat::is_srgb)
                 } else {
@@ -80,12 +82,15 @@ impl Compositor {
                     capabilities.formats.first().copied()
                 });
 
-                let alphas = capabilities.alpha_modes;
-                let preferred_alpha = if alphas
+                let alpha_modes = capabilities.alpha_modes;
+
+                log::info!("Available alpha modes: {alpha_modes:#?}");
+
+                let preferred_alpha = if alpha_modes
                     .contains(&wgpu::CompositeAlphaMode::PostMultiplied)
                 {
                     wgpu::CompositeAlphaMode::PostMultiplied
-                } else if alphas
+                } else if alpha_modes
                     .contains(&wgpu::CompositeAlphaMode::PreMultiplied)
                 {
                     wgpu::CompositeAlphaMode::PreMultiplied