fixed pong for 0.11

Cargo.toml

@@ -12,5 +12,5 @@ members = [
 ]
 exclude = [
     "code/showcase/imgui-demo",
-    "code/showcase/pong",
+    # "code/showcase/pong",
 ]

code/beginner/tutorial2-surface/Cargo.toml

@@ -14,7 +14,7 @@ env_logger = "0.9"
 log = "0.4"
 wgpu = "0.11"
 # wgpu = { version = "0.11", features=["trace"]}
-# wgpu = { git = "https://github.com/gfx-rs/wgpu/"}
+# wgpu = { git = "https://github.com/gfx-rs/wgpu/" }
 # wgpu = { git = "https://github.com/gfx-rs/wgpu/", features=["trace"]}
 pollster = "0.2"
 

code/beginner/tutorial2-surface/src/main.rs

@@ -24,7 +24,7 @@ impl State {
         let surface = unsafe { instance.create_surface(window) };
         let adapter = instance
             .request_adapter(&wgpu::RequestAdapterOptions {
-                power_preference: wgpu::PowerPreference::default(),
+                power_preference: wgpu::PowerPreference::HighPerformance,
                 compatible_surface: Some(&surface),
                 force_fallback_adapter: false,
             })
@@ -167,7 +167,7 @@ fn main() {
                     Err(e) => eprintln!("{:?}", e),
                 }
             }
-            Event::MainEventsCleared => {
+            Event::RedrawEventsCleared => {
                 // RedrawRequested will only trigger once, unless we manually
                 // request it.
                 window.request_redraw();

code/showcase/pong/Cargo.toml

@@ -12,7 +12,7 @@ bytemuck = { version = "1.4", features = [ "derive" ] }
 cgmath = "0.18"
 pollster = "0.2"
 wgpu = { version = "0.11", features = ["spirv"]}
-wgpu_glyph = "0.14"
+wgpu_glyph = "0.15"
 rand = "0.8"
 rodio = "0.14"
 

code/showcase/pong/src/render/mod.rs

@@ -139,7 +139,7 @@ impl Render {
 
         match self.surface.get_current_texture() {
             Ok(frame) => {
-                let view = frame.output.texture.create_view(&Default::default());
+                let view = frame.texture.create_view(&Default::default());
                 let mut render_pass = encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
                     label: Some("Main Render Pass"),
                     color_attachments: &[wgpu::RenderPassColorAttachment {
@@ -192,6 +192,7 @@ impl Render {
 
                 self.staging_belt.finish();
                 self.queue.submit(iter::once(encoder.finish()));
+                frame.present();
             }
             Err(wgpu::SurfaceError::Outdated) => {
                 self.surface.configure(&self.device, &self.config);

docs/beginner/tutorial2-surface/README.md

@@ -330,6 +330,7 @@ Now we can actually get to clearing the screen (long time coming). We need to us
         });
     }
 
+    // submit will accept anything that implements IntoIter
     self.queue.submit(std::iter::once(encoder.finish()));
     output.present();