browser-wasm support via NativeAOT-LLVM

.github/workflows/build-libs.yml

@@ -21,6 +21,10 @@ jobs:
             arch: x64
             target: win-x64
             ext: .dll
+          - os: windows-latest
+            arch: wasm
+            target: browser-wasm
+            ext: .a
           - os: macos-latest
             arch: x64-arm64
             target: osx
@@ -35,6 +39,12 @@ jobs:
         uses: actions/checkout@v4
       - name: Get CMake
         uses: lukka/[email protected]
+      - name: Setup emscripten
+        uses: mymindstorm/setup-emsdk@v14
+        if: ${{ matrix.target == 'browser-wasm' }}
+      - name: Get latest ninja
+        uses: urkle/action-get-ninja@v1
+        if: ${{ matrix.target == 'browser-wasm' }}
       - name: Setup Linux dependencies
         if: ${{ runner.os == 'Linux' }}
         run: |
@@ -46,7 +56,11 @@ jobs:
             libxkbcommon-dev libdrm-dev libgbm-dev libgl1-mesa-dev libgles2-mesa-dev \
             libegl1-mesa-dev libdbus-1-dev libibus-1.0-dev libudev-dev fcitx-libs-dev
       - name: CMake Configure
+        if: ${{ matrix.target != 'browser-wasm' }}
         run: cmake -B build -S Platform -DFOSTER_OVERRIDE_TARGET=${{matrix.target}} -D CMAKE_SYSTEM_VERSION=10.0.26100.0
+      - name: CMake Configure
+        if: ${{ matrix.target == 'browser-wasm' }}
+        run: emcmake cmake -B build -S Platform -DFOSTER_OVERRIDE_TARGET=${{matrix.target}} -D CMAKE_SYSTEM_VERSION=10.0.26100.0
       - name: CMake Build
         run: cmake --build build --config Release
       - name: Publish Artifact
@@ -76,6 +90,11 @@ jobs:
         with:
           name: ubuntu-latest-x64-build
           path: Platform/libs/linux-x64
+      - name: Download browser-wasm libs
+        uses: actions/download-artifact@v4
+        with:
+          name: windows-latest-wasm-build
+          path: Platform/libs/browser-wasm
       - name: Display structure of libs
         run: ls -R
         working-directory: Platform/libs

Framework/Foster.Framework.csproj

@@ -3,7 +3,7 @@
   <PropertyGroup>
     <OutputType>Library</OutputType>
     <TargetFramework>net9.0</TargetFramework>
-	<RuntimeIdentifiers>win-x64;osx-x64;linux-x64</RuntimeIdentifiers>
+    <RuntimeIdentifiers>win-x64;osx-x64;linux-x64;browser-wasm</RuntimeIdentifiers>
     <ImplicitUsings>enable</ImplicitUsings>
     <Nullable>enable</Nullable>
     <AllowUnsafeBlocks>true</AllowUnsafeBlocks>
@@ -40,6 +40,10 @@
     <IsMacOS>true</IsMacOS>
   </PropertyGroup>
 
+  <PropertyGroup Condition="($(RuntimeIdentifier) == '' and $([MSBuild]::IsOSPlatform('Browser'))) or $(RuntimeIdentifier) == 'browser-wasm'">
+    <IsBrowser>true</IsBrowser>
+  </PropertyGroup>
+
   <ItemGroup>
     <Content Include="$(NativeLibsDir)win-x64\**" Visible="false">
       <CopyToOutputDirectory Condition="'$(IsWindows)' == 'true'">PreserveNewest</CopyToOutputDirectory>
@@ -59,8 +63,14 @@
       <Pack>True</Pack>
       <Link>%(Filename)%(Extension)</Link>
     </Content>
+    <Content Include="$(NativeLibsDir)browser-wasm\**" Visible="false">
+      <CopyToOutputDirectory Condition="'$(IsBrowser)' == 'true'">PreserveNewest</CopyToOutputDirectory>
+      <PackagePath>runtimes\browser-wasm\native</PackagePath>
+      <Pack>True</Pack>
+      <Link>%(Filename)%(Extension)</Link>
+    </Content>
   </ItemGroup>
-  
+
   <ItemGroup>
     <None Include="$(ProjectDir)..\LICENSE" Pack="true" PackagePath="/" />
     <None Include="$(ProjectDir)..\README.md" Pack="true" PackagePath="/" />

Platform/CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required(VERSION 3.14)
 project(FosterPlatform C)
 
-# Set flag for building a universal binary on macOS 
+# Set flag for building a universal binary on macOS
 if(APPLE)
 	set(CMAKE_OSX_ARCHITECTURES "arm64;x86_64")
 endif()
@@ -58,8 +58,13 @@ if (NOT DEFINED FOSTER_SDL3_LIBS)
 	include(FetchContent)
 	set(FETCHCONTENT_QUIET FALSE)
 	set(SDL_TEST_LIBRARY OFF)
-	set(SDL_SHARED ON)
-	set(SDL_STATIC OFF)
+	if (FOSTER_TARGET STREQUAL "browser-wasm")
+		set(SDL_SHARED OFF)
+		set(SDL_STATIC ON)
+	else()
+		set(SDL_SHARED ON)
+		set(SDL_STATIC OFF)
+	endif()
 
 	FetchContent_Declare(
 		SDL3
@@ -68,7 +73,11 @@ if (NOT DEFINED FOSTER_SDL3_LIBS)
 		GIT_PROGRESS TRUE
 	)
 	FetchContent_MakeAvailable(SDL3)
-	set(FOSTER_SDL3_LIBS SDL3-shared)
+	if (FOSTER_TARGET STREQUAL "browser-wasm")
+		set(FOSTER_SDL3_LIBS SDL3-static)
+	else()
+		set(FOSTER_SDL3_LIBS SDL3-shared)
+	endif()
 	set(FOSTER_SDL3_INCLUDE ${SDL3_SOURCE_DIRS}/include)
 endif()