revive project: add the template from learnWGPU tutorial

Signed-off-by: Amneesh Singh <natto@weirdnatto.in>

.cargo/config.toml

@@ -1,8 +1,8 @@
 [target.x86_64-unknown-linux-gnu]
-rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]
 
 [target.i686-unknown-linux-gnu]
-rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]
 
 [target.aarch64-unknown-linux-gnu]
-rustflags = ["-C", "link-arg=-fuse-ld=lld"]
+rustflags = ["-C", "link-arg=-fuse-ld=mold"]

.github/workflows/main.yml

@@ -3,26 +3,30 @@ on: [push, pull_request, workflow_dispatch]
 
 jobs:
   build:
-    strategy:
+    runs-on: ubuntu-latest
-      matrix:
-        os: [ubuntu-latest, macOS-latest]
-    runs-on: ${{ matrix.os }}
     steps:
-      - name: Git checkout
+      - uses: actions/checkout@v3
-        uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v20
-      - name: Install nix
-        uses: cachix/install-nix-action@v18
-      - name: Check formatting
-        run: nix develop -c cargo fmt --check
-      - name: Set up cache
-        uses: actions/cache@v3
         with:
-          path: |
+          extra_nix_config: |
-            ~/.cargo/bin/
+            auto-optimise-store = true
-            ~/.cargo/registry/index/
+            experimental-features = nix-command flakes
-            ~/.cargo/registry/cache/
+      - uses: cachix/cachix-action@v12
-            ~/.cargo/git/db/
+        with:
-            target/
+          name: pain
-          key: ${{ matrix.os }}-torana-${{ hashFiles('**/Cargo.lock') }}
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
-      - name: Build
+
-        run: nix develop -c cargo build --release
+      - name: fmt checks
+        run: nix build .#checks.fmt -L
+
+      - name: clippy checks
+        run: nix build .#checks.clippy -L
+        
+      - name: nextest checks
+        run: nix build .#checks.nextest -L
+
+      - name: doc checks
+        run: nix build .#checks.doc -L
+
+      - name: build
+        run: nix build .#torana -L

.github/workflows/web.yml

@@ -0,0 +1,36 @@
+name: toranaWeb
+on:
+  workflow_run:
+    workflows: ["torana"]
+    types:
+      - completed
+  workflow_dispatch:
+
+env:
+  OUT_LINK: toranaWeb
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: cachix/install-nix-action@v20
+        with:
+          extra_nix_config: |
+            auto-optimise-store = true
+            experimental-features = nix-command flakes
+
+      - uses: cachix/cachix-action@v12
+        with:
+          name: pain
+          authToken: '${{ secrets.CACHIX_AUTH_TOKEN }}'
+
+      - name: build
+        run: nix build .#toranaWeb --out-link $OUT_LINK -L
+
+      - name: wasm-bindgen
+        run: >
+          nix develop .#toranaWeb
+          -c wasm-bindgen
+          --target web $OUT_LINK/bin/torana.wasm
+          --out-dir www

Cargo.toml

@@ -6,10 +6,26 @@ edition = "2021"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-bytemuck = { version = "1.12", features = [ "derive" ] }
+bytemuck = { version = "1.13.1", features = [ "derive" ] }
 cfg-if = "1"
 env_logger = "0.9"
 image = "0.24"
 log = "0.4"
-wgpu = "0.14"
+wgpu = "0.17"
-winit = "0.27"
+winit = "0.28.6"
+pollster ="0.3.0"
+
+[target.'cfg(target_arch = "wasm32")'.dependencies]
+console_error_panic_hook = "0.1.6"
+console_log = "1.0"
+wgpu = { version = "0.17", features = ["webgl"]}
+wasm-bindgen = "0.2"
+wasm-bindgen-futures = "0.4.30"
+web-sys = { version = "0.3", features = [
+    "Document",
+    "Window",
+    "Element",
+]}
+
+[lib]
+crate-type = ["cdylib", "rlib"]

flake.lock

@@ -1,12 +1,72 @@
 {
   "nodes": {
-    "flake-utils": {
+    "crane": {
+      "inputs": {
+        "flake-compat": "flake-compat",
+        "flake-utils": "flake-utils",
+        "nixpkgs": [
+          "nixpkgs"
+        ],
+        "rust-overlay": "rust-overlay"
+      },
       "locked": {
-        "lastModified": 1659877975,
+        "lastModified": 1691423162,
-        "narHash": "sha256-zllb8aq3YO3h8B/U0/J1WBgAL8EX5yWf5pMj3G0NAmc=",
+        "narHash": "sha256-cReUZCo83YEEmFcHX8CcOVTZYUrcWgHQO34zxQzy7WI=",
+        "owner": "ipetkov",
+        "repo": "crane",
+        "rev": "b5d9d42ea3fa8fea1805d9af1416fe207d0dd1dc",
+        "type": "github"
+      },
+      "original": {
+        "owner": "ipetkov",
+        "repo": "crane",
+        "type": "github"
+      }
+    },
+    "flake-compat": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-utils": {
+      "inputs": {
+        "systems": "systems"
+      },
+      "locked": {
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "c0e246b9b83f637f4681389ecabcb2681b4f3af0",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
+        "type": "github"
+      },
+      "original": {
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "type": "github"
+      }
+    },
+    "flake-utils_2": {
+      "inputs": {
+        "systems": "systems_2"
+      },
+      "locked": {
+        "lastModified": 1681202837,
+        "narHash": "sha256-H+Rh19JDwRtpVPAWp64F+rlEtxUWBAQW28eAi3SRSzg=",
+        "owner": "numtide",
+        "repo": "flake-utils",
+        "rev": "cfacdce06f30d2b68473a46042957675eebb3401",
         "type": "github"
       },
       "original": {
@@ -17,31 +77,15 @@
     },
     "nixpkgs": {
       "locked": {
-        "lastModified": 1674266771,
+        "lastModified": 1691371061,
-        "narHash": "sha256-Rttg4VUJpCtg5Qxdp+/xncxuEFQjMlKbvEFi5my0oNU=",
+        "narHash": "sha256-BxPbPVlBIoneaXIBiHd0LVzA+L4nmvFCNBU6TmQAiMM=",
         "owner": "nixos",
         "repo": "nixpkgs",
-        "rev": "7c3fc1838288763664291ef847816ddd03fde26b",
+        "rev": "5068bc8fe943bde3c446326da8d0ca9c93d5a682",
         "type": "github"
       },
       "original": {
         "owner": "nixos",
-        "ref": "release-22.11",
-        "repo": "nixpkgs",
-        "type": "github"
-      }
-    },
-    "nixpkgs_2": {
-      "locked": {
-        "lastModified": 1665296151,
-        "narHash": "sha256-uOB0oxqxN9K7XGF1hcnY+PQnlQJ+3bP2vCn/+Ru/bbc=",
-        "owner": "NixOS",
-        "repo": "nixpkgs",
-        "rev": "14ccaaedd95a488dd7ae142757884d8e125b3363",
-        "type": "github"
-      },
-      "original": {
-        "owner": "NixOS",
         "ref": "nixpkgs-unstable",
         "repo": "nixpkgs",
         "type": "github"
@@ -49,22 +93,29 @@
     },
     "root": {
       "inputs": {
+        "crane": "crane",
         "nixpkgs": "nixpkgs",
-        "rust-overlay": "rust-overlay",
+        "rust-overlay": "rust-overlay_2",
         "utils": "utils"
       }
     },
     "rust-overlay": {
       "inputs": {
-        "flake-utils": "flake-utils",
+        "flake-utils": [
-        "nixpkgs": "nixpkgs_2"
+          "crane",
+          "flake-utils"
+        ],
+        "nixpkgs": [
+          "crane",
+          "nixpkgs"
+        ]
       },
       "locked": {
-        "lastModified": 1674267882,
+        "lastModified": 1691029059,
-        "narHash": "sha256-53sIczqxA5BbrhgO6l54DSisDqHvQ3UUwbSqBryA/k0=",
+        "narHash": "sha256-QwVeE9YTgH3LmL7yw2V/hgswL6yorIvYSp4YGI8lZYM=",
         "owner": "oxalica",
         "repo": "rust-overlay",
-        "rev": "1fd6d280c132f4facad8cd023543fb10121e6487",
+        "rev": "99df4908445be37ddb2d332580365fce512a7dcf",
         "type": "github"
       },
       "original": {
@@ -73,13 +124,82 @@
         "type": "github"
       }
     },
-    "utils": {
+    "rust-overlay_2": {
+      "inputs": {
+        "flake-utils": "flake-utils_2",
+        "nixpkgs": [
+          "nixpkgs"
+        ]
+      },
       "locked": {
-        "lastModified": 1667395993,
+        "lastModified": 1691374719,
-        "narHash": "sha256-nuEHfE/LcWyuSWnS8t12N1wc105Qtau+/OdUAjtQ0rA=",
+        "narHash": "sha256-HCodqnx1Mi2vN4f3hjRPc7+lSQy18vRn8xWW68GeQOg=",
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "rev": "b520a3889b24aaf909e287d19d406862ced9ffc9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "oxalica",
+        "repo": "rust-overlay",
+        "type": "github"
+      }
+    },
+    "systems": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_2": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "systems_3": {
+      "locked": {
+        "lastModified": 1681028828,
+        "narHash": "sha256-Vy1rq5AaRuLzOxct8nz4T6wlgyUR7zLU309k9mBC768=",
+        "owner": "nix-systems",
+        "repo": "default",
+        "rev": "da67096a3b9bf56a91d16901293e51ba5b49a27e",
+        "type": "github"
+      },
+      "original": {
+        "owner": "nix-systems",
+        "repo": "default",
+        "type": "github"
+      }
+    },
+    "utils": {
+      "inputs": {
+        "systems": "systems_3"
+      },
+      "locked": {
+        "lastModified": 1689068808,
+        "narHash": "sha256-6ixXo3wt24N/melDWjq70UuHQLxGV8jZvooRanIHXw0=",
         "owner": "numtide",
         "repo": "flake-utils",
-        "rev": "5aed5285a952e0b949eb3ba02c12fa4fcfef535f",
+        "rev": "919d646de7be200f3bf08cb76ae1f09402b6f9b4",
         "type": "github"
       },
       "original": {

flake.nix

@@ -1,45 +1,139 @@
 {
-  description = "Torana danmaku engine";
+  description = "torana danmaku";
 
   inputs = {
-    nixpkgs.url = github:nixos/nixpkgs/release-22.11;
+    nixpkgs.url = github:nixos/nixpkgs/nixpkgs-unstable;
-    rust-overlay.url = github:oxalica/rust-overlay;
+
+    crane = {
+      url = github:ipetkov/crane;
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
+    rust-overlay = {
+      url = github:oxalica/rust-overlay;
+      inputs.nixpkgs.follows = "nixpkgs";
+    };
+
     utils.url = github:numtide/flake-utils;
   };
 
-  outputs = {
+  outputs = { self, nixpkgs, utils, crane, rust-overlay, }:
-    self,
-    nixpkgs,
-    utils,
-    rust-overlay,
-  }:
     utils.lib.eachDefaultSystem
-    (
+      (
-      system: let
+        system:
-        overlays = [rust-overlay.overlays.default];
+        let
-
+          pkgs = import nixpkgs {
-        pkgs = import nixpkgs {
+            inherit system;
-          inherit system overlays;
+            overlays = [ rust-overlay.overlays.default ];
-        };
-
-        toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain;
-      in rec {
-        devShell = with pkgs;
-          mkShell {
-            nativeBuildInputs =
-              [
-                cmake
-                openssl
-                fontconfig
-                pkg-config
-                rust-analyzer
-                toolchain
-              ]
-              ++ lib.optionals (with stdenv.hostPlatform; (isx86 || isi686 || isAarch64) && isLinux) [llvmPackages.lld]
-              ++ lib.optionals stdenv.hostPlatform.isDarwin [darwin.apple_sdk.frameworks.Cocoa];
           };
 
-        formatter = pkgs.alejandra;
+          runtimeDependencies = with pkgs; [
-      }
+            freetype
-    );
+            fontconfig
+            vulkan-loader
+          ];
+
+          xorgInputs = with pkgs; (with xorg; [
+            libX11
+            libXcursor
+            libXrandr
+            libXi
+          ]) ++ [
+            # libxkbcommon
+            # wayland
+          ];
+
+          nativeBuildInputs = with pkgs; [
+            cmake
+            openssl.dev
+            fontconfig.dev
+            pkg-config
+          ]
+          ++ lib.optionals (with stdenv.hostPlatform; (isx86 || isi686 || isAarch64)) [ mold ]
+          ++ lib.optionals stdenv.hostPlatform.isDarwin [ darwin.apple_sdk.frameworks.Cocoa ];
+
+          toolchain = pkgs.rust-bin.fromRustupToolchainFile ./rust-toolchain;
+
+          craneLib = (crane.mkLib pkgs).overrideToolchain toolchain;
+
+          src = craneLib.cleanCargoSource (craneLib.path ./.);
+
+          commonArgs = {
+            inherit src nativeBuildInputs;
+            buildInputs = xorgInputs;
+            doCheck = false;
+          };
+
+          cargoArtifacts = craneLib.buildDepsOnly commonArgs;
+
+          torana = craneLib.buildPackage (commonArgs // {
+            inherit cargoArtifacts runtimeDependencies;
+            nativeBuildInputs = nativeBuildInputs ++ [ pkgs.autoPatchelfHook ];
+          });
+
+          commonArgsWeb = {
+            inherit src;
+            cargoExtraArgs = "--target wasm32-unknown-unknown";
+            doCheck = false;
+          };
+
+          cargoArtifactsWeb = craneLib.buildDepsOnly commonArgsWeb;
+
+          toranaWeb = craneLib.buildPackage (commonArgsWeb // {
+            inherit cargoArtifactsWeb;
+          });
+
+        in
+        rec {
+          packages = {
+            inherit torana toranaWeb toolchain;
+            default = torana;
+
+            # not using flake checks to run them individually
+            checks = {
+              clippy = craneLib.cargoClippy (commonArgs // {
+                inherit cargoArtifacts;
+              });
+
+              fmt = craneLib.cargoFmt {
+                inherit src;
+              };
+
+              doc = craneLib.cargoDoc (commonArgs // {
+                inherit cargoArtifacts;
+              });
+
+              nextest = craneLib.cargoNextest (commonArgs // {
+                inherit cargoArtifacts;
+                partitions = 1;
+                partitionType = "count";
+              });
+            };
+
+          };
+
+          devShells = rec {
+            torana = with pkgs;
+              mkShell {
+                name = "torana";
+                nativeBuildInputs = nativeBuildInputs ++
+                  (with pkgs; [ wasm-bindgen toolchain ]);
+
+                LD_LIBRARY_PATH = pkgs.lib.makeLibraryPath
+                  (xorgInputs ++ runtimeDependencies);
+              };
+
+            default = torana;
+
+            toranaWeb = with pkgs;
+              mkShell {
+                name = "toranaWeb";
+                nativeBuildInputs = with pkgs; [
+                  wasm-bindgen-cli
+                ];
+              };
+          };
+          formatter = pkgs.nixpkgs-fmt;
+        }
+      );
 }

rust-toolchain

@@ -1,3 +1,4 @@
 [toolchain]
-channel = "nightly-2023-01-21"
+channel = "nightly-2023-07-15"
-components = [ "rustfmt", "clippy" ]
+components = [ "rustfmt", "clippy", "rust-analyzer", "rust-src" ]
+targets = ["wasm32-unknown-unknown"]

rustfmt.toml

@@ -0,0 +1,5 @@
+comment_width = 99
+format_code_in_doc_comments = true
+imports_granularity = "Module"
+imports_layout = "Vertical"
+wrap_comments = true

src/lib.rs

@@ -1,3 +1,227 @@
-pub fn run() {
+use std::iter;
-    println!("alo")
+
+use winit::event::*;
+use winit::event_loop::{
+    ControlFlow,
+    EventLoop,
+};
+use winit::window::{
+    Window,
+    WindowBuilder,
+};
+
+#[cfg(target_arch = "wasm32")]
+use wasm_bindgen::prelude::*;
+
+struct State {
+    surface: wgpu::Surface,
+    device: wgpu::Device,
+    queue: wgpu::Queue,
+    config: wgpu::SurfaceConfiguration,
+    size: winit::dpi::PhysicalSize<u32>,
+    window: Window,
+}
+
+impl State {
+    async fn new(window: Window) -> Self {
+        let size = window.inner_size();
+
+        let instance = wgpu::Instance::new(wgpu::InstanceDescriptor {
+            backends: wgpu::Backends::all(),
+            dx12_shader_compiler: Default::default(),
+        });
+
+        let surface = unsafe { instance.create_surface(&window) }.unwrap();
+
+        let adapter = instance
+            .request_adapter(&wgpu::RequestAdapterOptions {
+                power_preference: wgpu::PowerPreference::default(),
+                compatible_surface: Some(&surface),
+                force_fallback_adapter: false,
+            })
+            .await
+            .unwrap();
+
+        println!("Selected GPU: {}", adapter.get_info().name);
+
+        let (device, queue) = adapter
+            .request_device(
+                &wgpu::DeviceDescriptor {
+                    label: None,
+                    features: wgpu::Features::empty(),
+                    limits: if cfg!(target_arch = "wasm32") {
+                        wgpu::Limits::downlevel_webgl2_defaults()
+                    } else {
+                        wgpu::Limits::default()
+                    },
+                },
+                None,
+            )
+            .await
+            .unwrap();
+
+        let surface_caps = surface.get_capabilities(&adapter);
+
+        let surface_format = surface_caps
+            .formats
+            .iter()
+            .copied()
+            .find(|f| f.is_srgb())
+            .unwrap_or(surface_caps.formats[0]);
+
+        let config = wgpu::SurfaceConfiguration {
+            usage: wgpu::TextureUsages::RENDER_ATTACHMENT,
+            format: surface_format,
+            width: size.width,
+            height: size.height,
+            present_mode: surface_caps.present_modes[0],
+            alpha_mode: surface_caps.alpha_modes[0],
+            view_formats: vec![],
+        };
+        surface.configure(&device, &config);
+
+        Self {
+            surface,
+            device,
+            queue,
+            config,
+            size,
+            window,
+        }
+    }
+
+    fn window(&self) -> &Window {
+        &self.window
+    }
+
+    pub fn resize(&mut self, new_size: winit::dpi::PhysicalSize<u32>) {
+        if new_size.width > 0 && new_size.height > 0 {
+            self.size = new_size;
+            self.config.width = new_size.width;
+            self.config.height = new_size.height;
+            self.surface.configure(&self.device, &self.config);
+        }
+    }
+
+    #[allow(unused_variables)]
+    fn input(&mut self, event: &WindowEvent) -> bool {
+        false
+    }
+
+    fn update(&mut self) {}
+
+    fn render(&mut self) -> Result<(), wgpu::SurfaceError> {
+        let output = self.surface.get_current_texture()?;
+        let view = output
+            .texture
+            .create_view(&wgpu::TextureViewDescriptor::default());
+
+        let mut encoder = self
+            .device
+            .create_command_encoder(&wgpu::CommandEncoderDescriptor {
+                label: Some("Render Encoder"),
+            });
+
+        encoder.begin_render_pass(&wgpu::RenderPassDescriptor {
+            label: Some("Render Pass"),
+            color_attachments: &[Some(wgpu::RenderPassColorAttachment {
+                view: &view,
+                resolve_target: None,
+                ops: wgpu::Operations {
+                    load: wgpu::LoadOp::Clear(wgpu::Color {
+                        r: 0.6,
+                        g: 0.2,
+                        b: 0.3,
+                        a: 1.0,
+                    }),
+                    store: true,
+                },
+            })],
+            depth_stencil_attachment: None,
+        });
+
+        self.queue.submit(iter::once(encoder.finish()));
+        output.present();
+
+        Ok(())
+    }
+}
+
+#[cfg_attr(target_arch = "wasm32", wasm_bindgen(start))]
+pub async fn run() {
+    cfg_if::cfg_if! {
+        if #[cfg(target_arch = "wasm32")] {
+            std::panic::set_hook(Box::new(console_error_panic_hook::hook));
+            console_log::init_with_level(log::Level::Warn).expect("Couldn't initialize logger");
+        } else {
+            env_logger::init();
+        }
+    }
+
+    let event_loop = EventLoop::new();
+    let window = WindowBuilder::new().build(&event_loop).unwrap();
+
+    #[cfg(target_arch = "wasm32")]
+    {
+        use winit::dpi::PhysicalSize;
+        window.set_inner_size(PhysicalSize::new(450, 400));
+
+        use winit::platform::web::WindowExtWebSys;
+        web_sys::window()
+            .and_then(|win| win.document())
+            .and_then(|doc| {
+                let dst = doc.get_element_by_id("wasm-example")?;
+                let canvas = web_sys::Element::from(window.canvas());
+                dst.append_child(&canvas).ok()?;
+                Some(())
+            })
+            .expect("Couldn't append canvas to document body.");
+    }
+
+    let mut state = State::new(window).await;
+
+    event_loop.run(move |event, _, control_flow| match event {
+        Event::WindowEvent {
+            ref event,
+            window_id,
+        } if window_id == state.window().id() => {
+            if !state.input(event) {
+                match event {
+                    WindowEvent::CloseRequested
+                    | WindowEvent::KeyboardInput {
+                        input:
+                            KeyboardInput {
+                                state: ElementState::Pressed,
+                                virtual_keycode: Some(VirtualKeyCode::Escape),
+                                ..
+                            },
+                        ..
+                    } => *control_flow = ControlFlow::Exit,
+                    WindowEvent::Resized(physical_size) => {
+                        state.resize(*physical_size);
+                    }
+                    WindowEvent::ScaleFactorChanged { new_inner_size, .. } => {
+                        state.resize(**new_inner_size);
+                    }
+                    _ => {}
+                }
+            }
+        }
+        Event::RedrawRequested(window_id) if window_id == state.window().id() => {
+            state.update();
+            match state.render() {
+                Ok(_) => {}
+                Err(wgpu::SurfaceError::Lost | wgpu::SurfaceError::Outdated) => {
+                    state.resize(state.size)
+                }
+                Err(wgpu::SurfaceError::OutOfMemory) => *control_flow = ControlFlow::Exit,
+
+                Err(wgpu::SurfaceError::Timeout) => log::warn!("Surface timeout"),
+            }
+        }
+        Event::RedrawEventsCleared => {
+            state.window().request_redraw();
+        }
+        _ => {}
+    });
 }

src/main.rs

@@ -0,0 +1,5 @@
+use torana::run;
+
+fn main() {
+    pollster::block_on(run());
+}