fix(wasm): increase audio chunksize to 256 minimum for emscripten audio ctx

.github/workflows/build.yaml

@@ -11,8 +11,6 @@ env:
 jobs:
   build:
     name: Build (${{ matrix.target }})
-    env:
-      VCPKG_SYSTEM_LIBRARIES: "OFF"
     strategy:
       fail-fast: false
       matrix:
@@ -46,16 +44,18 @@ jobs:
       - name: Cache vcpkg
         uses: actions/cache@v4
         with:
+          save-always: true # deprecated
           path: target/vcpkg
-          key: ${{ runner.os }}-vcpkg-${{ hashFiles('Cargo.toml', 'Cargo.lock') }}
+          key: vcpkg-${{ runner.os }}-${{ matrix.target }}-${{ hashFiles('Cargo.toml', 'Cargo.lock') }}
           restore-keys: |
-            ${{ runner.os }}-vcpkg-
+            ${{ runner.os }}-vcpkg
+            vcpkg-${{ runner.os }}-${{ matrix.target }}-
 
       - name: Vcpkg Linux Dependencies
         if: runner.os == 'Linux'
         run: |
           sudo apt-get update
-          sudo apt-get install -y build-essential gettext libltdl-dev
+          sudo apt-get install -y build-essential gettext libltdl-dev zlib1g-dev
 
       - name: Vcpkg
         run: |
@@ -91,7 +91,7 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup Emscripten SDK
-        uses: mymindstorm/setup-emsdk@v14
+        uses: pyodide/setup-emsdk@v15
         with:
           version: 3.1.43
           actions-cache-folder: "emsdk-cache"
@@ -111,8 +111,21 @@ jobs:
           version: 8
           run_install: true
 
-      - name: Build
-        run: ./build.sh -er # release mode, skip emsdk
+      - name: Build with Emscripten
+        run: |
+          cargo build --target=wasm32-unknown-emscripten --release
+
+      - name: Assemble
+        run: |
+          echo "Generating CSS"
+          pnpx postcss-cli ./assets/site/styles.scss -o ./assets/site/build.css
+
+          echo "Copying WASM files"
+
+          mkdir -p dist
+          cp assets/site/{build.css,favicon.ico,index.html} dist
+          output_folder="target/wasm32-unknown-emscripten/release"
+          cp $output_folder/pacman.{wasm,js} $output_folder/deps/pacman.data dist
 
       - name: Upload Artifact
         uses: actions/upload-pages-artifact@v3

Cargo.toml

@@ -42,7 +42,8 @@ rev = "2024.05.24" # release 2024.05.24 # to check for a new one, check https://
 [package.metadata.vcpkg.target]
 x86_64-pc-windows-msvc = { triplet = "x64-windows-static-md" }
 x86_64-unknown-linux-gnu = { triplet = "x64-linux" }
-# x86_64-apple-darwin = { triplet = "x64-osx-release" }
+x86_64-apple-darwin = { triplet = "x64-osx" }
+aarch64-apple-darwin = { triplet = "arm64-osx" }
 
 [target.'cfg(target_os = "emscripten")'.dependencies]
 libc = "0.2.16"

src/asset.rs

@@ -78,15 +78,17 @@ mod imp {
 #[cfg(target_os = "emscripten")]
 mod imp {
     use super::*;
-    use std::fs;
-    use std::path::Path;
+    use sdl2::rwops::RWops;
+    use std::io::Read;
     pub fn get_asset_bytes(asset: Asset) -> Result<Cow<'static, [u8]>, AssetError> {
-        let path = Path::new("assets/game").join(asset.path());
-        if !path.exists() {
-            return Err(AssetError::NotFound(asset.path().to_string()));
-        }
-        let bytes = fs::read(&path)?;
-        Ok(Cow::Owned(bytes))
+        let path = format!("assets/game/{}", asset.path());
+        let mut rwops = RWops::from_file(&path, "rb").map_err(|_| AssetError::NotFound(asset.path().to_string()))?;
+        let len = rwops.len().ok_or_else(|| AssetError::NotFound(asset.path().to_string()))?;
+        let mut buf = vec![0u8; len];
+        rwops
+            .read_exact(&mut buf)
+            .map_err(|e| AssetError::Io(std::io::Error::new(std::io::ErrorKind::Other, e)))?;
+        Ok(Cow::Owned(buf))
     }
 }
 

src/audio.rs

@@ -24,7 +24,7 @@ impl Audio {
         let frequency = 44100;
         let format = DEFAULT_FORMAT;
         let channels = 4;
-        let chunk_size = 128;
+        let chunk_size = 256; // 256 is minimum for emscripten
 
         mixer::open_audio(frequency, format, 1, chunk_size).expect("Failed to open audio");
         mixer::allocate_channels(channels);