Merge pull request #193 from hecrj/feature/canvas

Canvas widget for 2D graphics

1 files changed, 32 insertions, 1 deletions

diff --git a/wgpu/src/settings.rs b/wgpu/src/settings.rs
index dbe81830..65853ce2 100644
--- a/wgpu/src/settings.rs
+++ b/wgpu/src/settings.rs
@@ -1,10 +1,41 @@
+//! Configure a [`Renderer`].
+//!
+//! [`Renderer`]: struct.Renderer.html
+
 /// The settings of a [`Renderer`].
 ///
-/// [`Renderer`]: struct.Renderer.html
+/// [`Renderer`]: ../struct.Renderer.html
 #[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 pub struct Settings {
     /// The bytes of the font that will be used by default.
     ///
     /// If `None` is provided, a default system font will be chosen.
     pub default_font: Option<&'static [u8]>,
+
+    /// The antialiasing strategy that will be used for triangle primitives.
+    pub antialiasing: Option<Antialiasing>,
+}
+
+/// An antialiasing strategy.
+#[derive(Debug, Clone, Copy, PartialEq, Eq)]
+pub enum Antialiasing {
+    /// Multisample AA with 2 samples
+    MSAAx2,
+    /// Multisample AA with 4 samples
+    MSAAx4,
+    /// Multisample AA with 8 samples
+    MSAAx8,
+    /// Multisample AA with 16 samples
+    MSAAx16,
+}
+
+impl Antialiasing {
+    pub(crate) fn sample_count(&self) -> u32 {
+        match self {
+            Antialiasing::MSAAx2 => 2,
+            Antialiasing::MSAAx4 => 4,
+            Antialiasing::MSAAx8 => 8,
+            Antialiasing::MSAAx16 => 16,
+        }
+    }
 }