Update winit to 0.20

wgpu/src/renderer.rs

@@ -92,7 +92,7 @@ impl Renderer {
         log::debug!("Drawing");
 
         let (width, height) = target.dimensions();
-        let dpi = target.dpi();
+        let scale_factor = target.scale_factor();
         let transformation = target.transformation();
         let frame = target.next_frame();
 
@@ -132,7 +132,13 @@ impl Renderer {
         self.draw_overlay(overlay, &mut layers);
 
         for layer in layers {
-            self.flush(dpi, transformation, &layer, &mut encoder, &frame.view);
+            self.flush(
+                scale_factor,
+                transformation,
+                &layer,
+                &mut encoder,
+                &frame.view,
+            );
         }
 
         self.queue.submit(&[encoder.finish()]);
@@ -330,19 +336,19 @@ impl Renderer {
 
     fn flush(
         &mut self,
-        dpi: f32,
+        scale_factor: f32,
         transformation: Transformation,
         layer: &Layer<'_>,
         encoder: &mut wgpu::CommandEncoder,
         target: &wgpu::TextureView,
     ) {
-        let bounds = layer.bounds * dpi;
+        let bounds = layer.bounds * scale_factor;
 
         if layer.meshes.len() > 0 {
             let translated = transformation
                 * Transformation::translate(
-                    -(layer.offset.x as f32) * dpi,
-                    -(layer.offset.y as f32) * dpi,
+                    -(layer.offset.x as f32) * scale_factor,
+                    -(layer.offset.y as f32) * scale_factor,
                 );
 
             self.triangle_pipeline.draw(
@@ -350,7 +356,7 @@ impl Renderer {
                 encoder,
                 target,
                 translated,
-                dpi,
+                scale_factor,
                 &layer.meshes,
                 bounds,
             );
@@ -362,7 +368,7 @@ impl Renderer {
                 encoder,
                 &layer.quads,
                 transformation,
-                dpi,
+                scale_factor,
                 bounds,
                 target,
             );
@@ -370,7 +376,7 @@ impl Renderer {
 
         if layer.images.len() > 0 {
             let translated_and_scaled = transformation
-                * Transformation::scale(dpi, dpi)
+                * Transformation::scale(scale_factor, scale_factor)
                 * Transformation::translate(
                     -(layer.offset.x as f32),
                     -(layer.offset.y as f32),
@@ -383,7 +389,7 @@ impl Renderer {
                 translated_and_scaled,
                 bounds,
                 target,
-                dpi,
+                scale_factor,
             );
         }
 
@@ -396,25 +402,25 @@ impl Renderer {
                     // bit "jumpy". We may be able to do better once we improve
                     // our text rendering/caching pipeline.
                     screen_position: (
-                        (text.screen_position.0 * dpi).round(),
-                        (text.screen_position.1 * dpi).round(),
+                        (text.screen_position.0 * scale_factor).round(),
+                        (text.screen_position.1 * scale_factor).round(),
                     ),
-                    // TODO: Fix precision issues with some DPI factors.
+                    // TODO: Fix precision issues with some scale factors.
                     //
                     // The `ceil` here can cause some words to render on the
                     // same line when they should not.
                     //
                     // Ideally, `wgpu_glyph` should be able to compute layout
                     // using logical positions, and then apply the proper
-                    // DPI scaling. This would ensure that both measuring and
-                    // rendering follow the same layout rules.
+                    // scaling when rendering. This would ensure that both
+                    // measuring and rendering follow the same layout rules.
                     bounds: (
-                        (text.bounds.0 * dpi).ceil(),
-                        (text.bounds.1 * dpi).ceil(),
+                        (text.bounds.0 * scale_factor).ceil(),
+                        (text.bounds.1 * scale_factor).ceil(),
                     ),
                     scale: wgpu_glyph::Scale {
-                        x: text.scale.x * dpi,
-                        y: text.scale.y * dpi,
+                        x: text.scale.x * scale_factor,
+                        y: text.scale.y * scale_factor,
                     },
                     ..*text
                 };

wgpu/src/renderer/target.rs

@@ -7,20 +7,20 @@ use raw_window_handle::HasRawWindowHandle;
 #[derive(Debug)]
 pub struct Target {
     surface: wgpu::Surface,
-    width: u16,
-    height: u16,
-    dpi: f32,
+    width: u32,
+    height: u32,
+    scale_factor: f32,
     transformation: Transformation,
     swap_chain: wgpu::SwapChain,
 }
 
 impl Target {
-    pub(crate) fn dimensions(&self) -> (u16, u16) {
+    pub(crate) fn dimensions(&self) -> (u32, u32) {
         (self.width, self.height)
     }
 
-    pub(crate) fn dpi(&self) -> f32 {
-        self.dpi
+    pub(crate) fn scale_factor(&self) -> f32 {
+        self.scale_factor
     }
 
     pub(crate) fn transformation(&self) -> Transformation {
@@ -37,9 +37,9 @@ impl window::Target for Target {
 
     fn new<W: HasRawWindowHandle>(
         window: &W,
-        width: u16,
-        height: u16,
-        dpi: f32,
+        width: u32,
+        height: u32,
+        scale_factor: f32,
         renderer: &Renderer,
     ) -> Target {
         let surface = wgpu::Surface::create(window);
@@ -50,7 +50,7 @@ impl window::Target for Target {
             surface,
             width,
             height,
-            dpi,
+            scale_factor,
             transformation: Transformation::orthographic(width, height),
             swap_chain,
         }
@@ -58,14 +58,14 @@ impl window::Target for Target {
 
     fn resize(
         &mut self,
-        width: u16,
-        height: u16,
-        dpi: f32,
+        width: u32,
+        height: u32,
+        scale_factor: f32,
         renderer: &Renderer,
     ) {
         self.width = width;
         self.height = height;
-        self.dpi = dpi;
+        self.scale_factor = scale_factor;
         self.transformation = Transformation::orthographic(width, height);
         self.swap_chain =
             new_swap_chain(&self.surface, width, height, &renderer.device);
@@ -74,8 +74,8 @@ impl window::Target for Target {
 
 fn new_swap_chain(
     surface: &wgpu::Surface,
-    width: u16,
-    height: u16,
+    width: u32,
+    height: u32,
     device: &wgpu::Device,
 ) -> wgpu::SwapChain {
     device.create_swap_chain(
@@ -83,8 +83,8 @@ fn new_swap_chain(
         &wgpu::SwapChainDescriptor {
             usage: wgpu::TextureUsage::OUTPUT_ATTACHMENT,
             format: wgpu::TextureFormat::Bgra8UnormSrgb,
-            width: u32::from(width),
-            height: u32::from(height),
+            width,
+            height,
             present_mode: wgpu::PresentMode::Vsync,
         },
     )

wgpu/src/transformation.rs

@@ -13,10 +13,10 @@ impl Transformation {
 
     /// Creates an orthographic projection.
     #[rustfmt::skip]
-    pub fn orthographic(width: u16, height: u16) -> Transformation {
+    pub fn orthographic(width: u32, height: u32) -> Transformation {
         Transformation(Mat4::from_cols(
-            Vec4::new(2.0 / f32::from(width), 0.0, 0.0, 0.0),
-            Vec4::new(0.0, 2.0 / f32::from(height), 0.0, 0.0),
+            Vec4::new(2.0 / width as f32, 0.0, 0.0, 0.0),
+            Vec4::new(0.0, 2.0 / height as f32, 0.0, 0.0),
             Vec4::new(0.0, 0.0, -1.0, 0.0),
             Vec4::new(-1.0, -1.0, 0.0, 1.0)
         ))