build: allow aarch64-linux-unknown-gnu build of librashader-capi

.github/workflows/build-linux-arm64.yml

@@ -0,0 +1,47 @@
+name: build librashader-capi for ARM64 Linux
+
+on:
+  push:
+    branches: [ "master" ]
+  pull_request:
+    branches: [ "master" ]
+  schedule:
+    - cron: "0 0 * * 6"
+env:
+  CARGO_TERM_COLOR: always
+
+jobs:
+  build:
+    strategy:
+      matrix:
+        profile: ['debug', 'release', 'optimized']
+      fail-fast: false
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout repository
+      uses: actions/checkout@v3
+    - name: Install nightly Rust
+      uses: actions-rs/toolchain@v1.0.6
+      with:
+        toolchain: nightly
+        override: true
+        target: aarch64-unknown-linux-gnu
+    - uses: actions/setup-python@v1
+      name: Setup Python 3.11
+      with:
+        python-version: '3.11.6'
+    - name: Install ARM64 cross-compilation dependencies
+      continue-on-error: true
+      run: |
+        sudo dpkg --add-architecture arm64
+        echo "deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports jammy main restricted" | sudo tee -a /etc/apt/sources.list
+        echo "deb [arch=arm64] http://ports.ubuntu.com/ubuntu-ports jammy-updates main restricted" | sudo tee -a /etc/apt/sources.list
+        sudo apt-get update || true
+        sudo apt-get -y install libvulkan-dev:arm64 g++-aarch64-linux-gnu gcc-aarch64-linux-gnu binutils-aarch64-linux-gnu
+    - name: Build dynamic library
+      run: CARGO_TARGET_AARCH64_UNKNOWN_LINUX_GNU_LINKER=/usr/bin/aarch64-linux-gnu-gcc cargo run -p librashader-build-script -- --profile ${{ matrix.profile }} --target aarch64-unknown-linux-gnu
+    - name: Upload build artifacts
+      uses: actions/upload-artifact@v3.1.2
+      with:
+        name: ${{ format('build-outputs-aarch64-unknown-linux-gnu-{0}', matrix.profile) }}
+        path: ${{ format('target/aarch64-unknown-linux-gnu/{0}/librashader.*', matrix.profile) }}

.github/workflows/build.yml

@@ -1,4 +1,4 @@
-name: build librashader-capi
+name: build librashader-capi for x86_64
 
 on:
   push:
@@ -16,7 +16,6 @@ jobs:
       matrix:
         os: [ubuntu-latest, windows-latest]
         profile: ['debug', 'release', 'optimized']
-        arch: ['x86_64']
       fail-fast: false
     runs-on: ${{ matrix.os }}
     steps:

README.md

@@ -90,13 +90,15 @@ static GL_DEFAULT_MVP: &[f32; 16] = &[
 librashader requires the following build time dependencies
 
 * The [Vulkan SDK](https://www.lunarg.com/vulkan-sdk/)
-* [Meson](https://mesonbuild.com/)
 * [CMake 3.8 or later](https://cmake.org/)
+
+For DXIL support on Windows, the following is also needed
+* [Meson](https://mesonbuild.com/)
 * [Python 3.6 or later](https://www.python.org/)
 
 ---
 
-For Rust projects, simply add the crate to your `Cargo.toml`. 
+For Rust projects, simply add the crate tofil your `Cargo.toml`. 
 
 ```
 cargo add librashader

librashader-build-script/src/main.rs

@@ -10,6 +10,8 @@ use std::{env, fs};
 struct Args {
     #[arg(long, default_value = "debug", global = true)]
     profile: String,
+    #[arg(long, global = true)]
+    target: Option<String>,
 }
 
 pub fn main() {
@@ -32,12 +34,26 @@ pub fn main() {
         "--profile={}",
         if profile == "debug" { "dev" } else { &profile }
     ));
+
+    if let Some(target) = &args.target {
+        cmd.arg(format!(
+            "--target={}",
+            &target
+        ));
+    }
+
     Some(cmd.status().expect("Failed to build librashader-capi"));
 
-    let output_dir = PathBuf::from(format!("target/{}", profile))
+    let mut output_dir = PathBuf::from(format!("target/{}", profile));
+    if let Some(target) = &args.target {
+        output_dir = PathBuf::from(format!("target/{}/{}", target, profile));
+    }
+
+    let output_dir = output_dir
         .canonicalize()
         .expect("Could not find output directory.");
 
+        
     println!("Generating C headers...");
 
     // Create headers.