first try at android ci

.github/workflows/ci.yml

@@ -29,6 +29,50 @@ jobs:
     - name: Build
       run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato
 
+  android:
+    timeout-minutes: 30
+    # contains sections copied from sdl repo
+
+    runs-on: ubuntu-latest
+
+    steps:
+    - uses: actions/checkout@v4
+      with:
+        submodules: recursive
+
+    - uses: nttld/setup-ndk@v1
+      id: setup_ndk
+      with:
+        local-cache: true
+        ndk-version: r26d
+
+    - uses: actions/setup-java@v4
+      with:
+        distribution: 'temurin'
+        java-version: '17'
+
+    - name: update vcpkg
+      run: |
+        git clone https://github.com/microsoft/vcpkg.git
+
+    - name: Install Dependencies (host)
+      run: sudo apt update && sudo apt -y install cmake pkg-config nasm
+
+    - name: Install Dependencies (target)
+      env:
+        ANDROID_NDK_HOME: ${{steps.setup_ndk.outputs.ndk-path}}
+      run: vcpkg install --triplet arm64-android --overlay-ports=vcpkg/ports libsodium opus libvpx libpng libjpeg-turbo
+
+    # vcpkg scripts root /usr/local/share/vcpkg/scripts
+    - name: Configure CMake
+      env:
+        ANDROID_NDK_HOME: ${{steps.setup_ndk.outputs.ndk-path}}
+      #run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_TOOLCHAIN_FILE=${{steps.setup_ndk.outputs.ndk-path}}/build/cmake/android.toolchain.cmake -DANDROID_PLATFORM=23 -DANDROID_ABI=arm64-v8a
+      run: cmake -B ${{github.workspace}}/build -DCMAKE_BUILD_TYPE=${{env.BUILD_TYPE}} -DCMAKE_TOOLCHAIN_FILE=/usr/local/share/vcpkg/scripts/buildsystems/vcpkg.cmake -DVCPKG_TARGET_TRIPLET=arm64-android -DANDROID=1 -DANDROID_PLATFORM=23 -DANDROID_ABI=arm64-v8a -DVCPKG_CHAINLOAD_TOOLCHAIN_FILE=${{steps.setup_ndk.outputs.ndk-path}}/build/cmake/android.toolchain.cmake -DSDL3IMAGE_JPG_SHARED=OFF -DSDL3IMAGE_PNG_SHARED=OFF -DTOMATO_MAIN_SO=ON
+
+    - name: Build (tomato)
+      run: cmake --build ${{github.workspace}}/build --config ${{env.BUILD_TYPE}} -j 4 -t tomato
+
   macos:
     timeout-minutes: 10
 

CMakeLists.txt

@@ -18,6 +18,7 @@ set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib")
 set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin")
 
+option(TOMATO_MAIN_SO "Build tomato as a shared object (for eg android apps)" ANDROID)
 option(TOMATO_ASAN "Build tomato with asan (gcc/clang/msvc)" OFF)
 
 if (TOMATO_ASAN)

src/CMakeLists.txt

@@ -1,8 +1,15 @@
-cmake_minimum_required(VERSION 3.9 FATAL_ERROR)
+cmake_minimum_required(VERSION 3.9...3.24 FATAL_ERROR)
 
 ########################################
 
-add_executable(tomato
+if (TOMATO_MAIN_SO)
+	add_library(tomato MODULE)
+	target_compile_definitions(tomato PUBLIC TOMATO_MAIN_SO)
+else()
+	add_executable(tomato)
+endif()
+
+target_sources(tomato PUBLIC
 	./main.cpp
 	./icon.rc