Flatpak support. (#569)

* Add flatpak support.

* Add gamepad to supported controls list in flatpak metainfo

---------

Co-authored-by: Wiseguy <68165316+Mr-Wiseguy@users.noreply.github.com>

.github/workflows/validate.yml

@@ -34,7 +34,7 @@ jobs:
       matrix:
         type: [ Debug, Release ]
         os: [ ubuntu-22.04 ]
-    name: ubuntu-18.04 (x64, ${{ matrix.type }})
+    name: ubuntu-18.04 (x64, ${{ matrix.type }}, Native, AppImage)
     steps:
       - name: Copy the Node20 binary
         run: |
@@ -113,7 +113,7 @@ jobs:
       matrix:
         type: [ Debug, Release ]
         os: [ ubuntu-22.04 ]
-    name: ${{ matrix.os }} (arm64, ${{ matrix.type }})
+    name: ${{ matrix.os }} (arm64, ${{ matrix.type }}, Native, AppImage)
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -195,6 +195,56 @@ jobs:
         with:
           name: Zelda64Recompiled-AppImage-ARM64-${{ matrix.type }}
           path: Zelda64Recompiled-*.AppImage
+  build-linux-flatpak:
+    runs-on: ubuntu-latest
+    env:
+      FLATPAK_ID: io.github.zelda64recomp.zelda64recomp
+      FREEDESKTOP_VERSION: 23.08
+      LLVM_VERSION: 18
+    strategy:
+      matrix:
+        type: [ Debug, Release ]
+        os: [ ubuntu-latest ]
+    name: ${{ matrix.os }} (x64, ${{ matrix.type }}, Flatpak)
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          ref: ${{ github.event.pull_request.head.sha || github.ref }}
+          submodules: recursive
+      - name: ccache
+        uses: hendrikmuhs/ccache-action@v1.2
+        with:
+          key: ${{ matrix.os }}-z64re-ccache-${{ matrix.type }}-x64-${{ inputs.N64RECOMP_COMMIT }}
+      - name: Install Linux Dependencies
+        run: |
+          sudo apt-get update
+          sudo apt-get install -y flatpak-builder ccache lld
+
+      - name: Prepare Build
+        run: |-
+          git clone ${{ secrets.ZRE_REPO_WITH_PAT }}
+          ./zre/process.sh
+
+      - name: Prepare Flatpak
+        run: |
+          flatpak --user remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo
+          flatpak --user install -y flathub org.freedesktop.Sdk//${{ env.FREEDESKTOP_VERSION }}
+          flatpak --user install -y flathub org.freedesktop.Sdk.Extension.llvm${{ env.LLVM_VERSION }}//${{ env.FREEDESKTOP_VERSION }}
+
+      - name: Build ZeldaRecomp
+        run: |-
+          export CCACHE_DIR=/tmp/ccache
+          git config --global protocol.file.allow always
+          make -C patches CC=clang LD=ld.lld
+          flatpak-builder --user --force-clean --install-deps-from=flathub --repo=repo --ccache builddir ./flatpak/${{ env.FLATPAK_ID }}.json
+          flatpak build-bundle repo ./${{ env.FLATPAK_ID }}.flatpak ${{ env.FLATPAK_ID }} --runtime-repo=https://flathub.org/repo/flathub.flatpakrepo
+
+      - name: Upload Artifact
+        uses: actions/upload-artifact@v4
+        with:
+          name: Zelda64Recompiled-Flatpak-X64-${{ matrix.type }}
+          path: ./${{ env.FLATPAK_ID }}.flatpak
   build-windows:
     runs-on: windows-latest
     strategy:

flatpak/.gitignore

@@ -0,0 +1,4 @@
+.flatpak-builder
+builddir
+repo
+*.flatpak

flatpak/README.md

@@ -0,0 +1,15 @@
+Before building the Flatpak, you must build the patches on the root directory first. **The LLVM Extension for freedesktop does not include the MIPS compiler and will fail to build the patches inside the flatpak**.
+```sh
+make -C patches CC=clang LD=ld.lld
+```
+
+Build
+```sh
+flatpak-builder --force-clean --user --install-deps-from=flathub --repo=repo --install builddir io.github.zelda64recomp.zelda64recomp.json
+```
+
+Bundle
+```sh
+flatpak build-bundle repo io.github.zelda64recomp.zelda64recomp.flatpak io.github.zelda64recomp.zelda64recomp --runtime-repo=https://flathub.org/repo/flathub.flatpakrepo
+```
+

flatpak/io.github.zelda64recomp.zelda64recomp.desktop

@@ -0,0 +1,8 @@
+[Desktop Entry]
+Name=Zelda 64: Recompiled
+Exec=/app/bin/Zelda64Recompiled
+Type=Application
+Icon=io.github.zelda64recomp.zelda64recomp
+Categories=Game;
+Comment=Static recompilation of Majora's Mask (and soon Ocarina of Time) for PC.
+MimeType=x-scheme-handler/zelda64recomp

flatpak/io.github.zelda64recomp.zelda64recomp.json

@@ -0,0 +1,63 @@
+{
+  "id": "io.github.zelda64recomp.zelda64recomp",
+  "runtime": "org.freedesktop.Platform",
+  "runtime-version": "23.08",
+  "sdk": "org.freedesktop.Sdk",
+  "sdk-extensions" : [ "org.freedesktop.Sdk.Extension.llvm18" ],
+  "finish-args": [
+    "--share=network",
+    "--socket=wayland",
+    "--socket=fallback-x11",
+    "--socket=pulseaudio",
+    "--device=all",
+    "--filesystem=host",
+    "--filesystem=/media",
+    "--filesystem=/run/media",
+    "--filesystem=/mnt"
+  ],
+  "modules": [
+    {
+      "name": "Zelda64Recompiled",
+      "buildsystem": "simple",
+      "build-commands": [
+        "cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang -DCMAKE_MAKE_PROGRAM=ninja -G Ninja -S lib/N64Recomp -B lib/N64Recomp/cmake-build",
+        "cmake --build lib/N64Recomp/cmake-build --config Release --target N64Recomp --parallel",
+        "cmake --build lib/N64Recomp/cmake-build --config Release --target RSPRecomp --parallel",
+        "cp lib/N64Recomp/cmake-build/N64Recomp N64Recomp",
+        "cp lib/N64Recomp/cmake-build/RSPRecomp RSPRecomp",
+        "./N64Recomp us.rev1.toml",
+        "./RSPRecomp aspMain.us.rev1.toml",
+        "./RSPRecomp njpgdspMain.us.rev1.toml",
+        "cmake -DCMAKE_BUILD_TYPE=Release -DCMAKE_CXX_COMPILER=clang++ -DCMAKE_C_COMPILER=clang -DCMAKE_MAKE_PROGRAM=ninja -DPATCHES_C_COMPILER=clang -DPATCHES_LD=ld.lld -G Ninja -S . -B cmake-build",
+        "cmake --build cmake-build --config Release --target Zelda64Recompiled --parallel",
+        "rm -rf assets/scss",
+        "mkdir -p /app/bin",
+        "cp cmake-build/Zelda64Recompiled /app/bin/Zelda64Recompiled",
+        "cp recompcontrollerdb.txt /app/bin/recompcontrollerdb.txt",
+        "cp -R assets /app/bin/assets",
+        "install -Dm644 icons/512.png /app/share/icons/hicolor/512x512/apps/${FLATPAK_ID}.png",
+        "install -Dm644 flatpak/io.github.zelda64recomp.zelda64recomp.metainfo.xml /app/share/metainfo/${FLATPAK_ID}.metainfo.xml",
+        "install -Dm644 flatpak/io.github.zelda64recomp.zelda64recomp.desktop /app/share/applications/${FLATPAK_ID}.desktop"
+      ],
+      "sources": [
+        {
+          "type": "git",
+          "url": "https://github.com/N64Recomp/N64Recomp.git",
+          "commit": "989a86b36912403cd323de884bf834f2605ea770",
+          "dest": "lib/N64Recomp"
+        },
+        {
+          "type": "dir",
+          "path": "../"
+        }
+      ],
+      "build-options": {
+        "append-path": "/usr/lib/sdk/llvm18/bin",
+        "prepend-ld-library-path": "/usr/lib/sdk/llvm18/lib",
+        "build-args": [
+          "--share=network"
+        ]
+      }
+    }
+  ]
+}

flatpak/io.github.zelda64recomp.zelda64recomp.metainfo.xml

@@ -0,0 +1,29 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<component type="desktop-application">
+  <id>io.github.zelda64recomp.zelda64recomp</id>
+  
+  <name>Zelda 64: Recompiled</name>
+  <summary>Static recompilation of Majora's Mask (and soon Ocarina of Time) for PC.</summary>
+  
+  <metadata_license>CC0-1.0</metadata_license>
+  <project_license>GPL-3.0+</project_license>
+  
+  <supports>
+    <control>pointing</control>
+    <control>keyboard</control>
+    <control>touch</control>
+    <control>gamepad</control>
+  </supports>
+  
+  <description>
+    <p>
+      Zelda 64: Recompiled is a project that uses N64: Recompiled to statically recompile Majora's Mask (and soon Ocarina of Time) into a native port with many new features and enhancements. This project uses RT64 as the rendering engine to provide some of these enhancements.
+
+      The original game is required to run this project.
+
+      https://github.com/Zelda64Recomp/Zelda64Recomp
+    </p>
+  </description>
+  
+  <launchable type="desktop-id">io.github.zelda64recomp.zelda64recomp.desktop</launchable>
+</component>

include/zelda_support.h

@@ -8,6 +8,7 @@
 #include <list>
 
 namespace zelda64 {
+    std::filesystem::path get_program_path();
     std::filesystem::path get_asset_path(const char* asset);
     void open_file_dialog(std::function<void(bool success, const std::filesystem::path& path)> callback);
     void open_file_dialog_multiple(std::function<void(bool success, const std::list<std::filesystem::path>& paths)> callback);

src/main/main.cpp

@@ -608,7 +608,8 @@ int main(int argc, char** argv) {
     reset_audio(48000);
 
     // Source controller mappings file
-    if (SDL_GameControllerAddMappingsFromFile("recompcontrollerdb.txt") < 0) {
+    std::u8string controller_db_path = (zelda64::get_program_path() / "recompcontrollerdb.txt").u8string();
+    if (SDL_GameControllerAddMappingsFromFile(reinterpret_cast<const char *>(controller_db_path.c_str())) < 0) {
         fprintf(stderr, "Failed to load controller mappings: %s\n", SDL_GetError());
     }
 

src/main/support.cpp

@@ -45,13 +45,20 @@ namespace zelda64 {
 
     // MARK: - Public API
 
-    std::filesystem::path get_asset_path(const char* asset) {
-        std::filesystem::path base_path = "";
+    std::filesystem::path get_program_path() {
 #if defined(__APPLE__)
-        base_path = get_bundle_resource_directory();
+        return get_bundle_resource_directory();
+#elif defined(__linux__)
+        std::error_code ec;
+        if (std::filesystem::exists("/.flatpak-info", ec)) {
+            return "/app/bin";
+        }
 #endif
+        return "";
+    }
 
-        return base_path / "assets" / asset;
+    std::filesystem::path get_asset_path(const char* asset) {
+        return get_program_path() / "assets" / asset;
     }
 
     void open_file_dialog(std::function<void(bool success, const std::filesystem::path& path)> callback) {