flatpak: Use JSON, add X11 and SDL3 manifests

I have chosen to use JSON and move the script into a file so it is
possible to use GNOME Builder to test/run.

The reason for the gitignore change is so the ClassiCubeLauncher file is
not ignored.

Also, ClassiCube using SDL3 launches on GNOME now.

.gitignore

@@ -95,6 +95,9 @@ fontscache.txt
 # Android source files need to be included
 !android/app/src/main/java/com/classicube
 
+# Flatpak wrapper which needs to be included
+!misc/linux/flatpak/ClassiCubeLauncher
+
 # CMake files
 CMakeFiles/
 CMakeCache.txt

misc/linux/flatpak/ClassiCubeLauncher

@@ -0,0 +1,3 @@
+#!/bin/sh
+mkdir -p ${XDG_DATA_HOME}/ClassiCube
+cd ${XDG_DATA_HOME}/ClassiCube && exec ClassiCube $@

misc/linux/flatpak/net.classicube.flatpak.client.SDL3.json

@@ -0,0 +1,78 @@
+{
+    "id": "net.classicube.flatpak.client",
+    "runtime": "org.freedesktop.Platform",
+    "runtime-version": "23.08",
+    "sdk": "org.freedesktop.Sdk",
+    "command": "ClassiCubeLauncher",
+    "finish-args": [
+        "--socket=wayland",
+        "--socket=fallback-x11",
+        "--device=dri",
+        "--share=network",
+        "--share=ipc",
+        "--socket=pulseaudio"
+    ],
+    "modules": [
+        {
+            "name": "SDL3",
+            "buildsystem": "cmake-ninja",
+            "builddir": true,
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/libsdl-org/SDL.git",
+                    "branch": "main"
+                }
+            ],
+            "cleanup": [
+                "/bin/sdl3-config",
+                "/include",
+                "/lib/libSDL3.la",
+                "/lib/libSDL3main.a",
+                "/lib/libSDL3main.la",
+                "/lib/libSDL3_test.a",
+                "/lib/libSDL3_test.la",
+                "/lib/cmake",
+                "/share/aclocal",
+                "/lib/pkgconfig"
+            ],
+            "modules": [
+                {
+                    "name": "libdecor",
+                    "buildsystem": "meson",
+                    "config-opts": [
+                        "-Ddemo=false"
+                    ],
+                    "sources": [
+                        {
+                            "type": "git",
+                            "url": "https://gitlab.freedesktop.org/libdecor/libdecor.git"
+                        }
+                    ],
+                    "cleanup": [
+                        "/include",
+                        "/lib/pkgconfig"
+                    ]
+                }
+            ]
+        },
+        {
+            "name": "ClassiCube",
+            "buildsystem": "simple",
+            "build-commands": [
+                "gcc -fno-math-errno src/*.c -o src/ClassiCube -rdynamic -lpthread -lGL -DCC_WIN_BACKEND=CC_WIN_BACKEND_SDL3 -DCC_GFX_BACKEND=CC_GFX_BACKEND_GL2 -DCC_BUILD_FLATPAK -L /app/lib -lSDL3",
+                "install -Dm755 src/ClassiCube -t ${FLATPAK_DEST}/bin",
+                "install -Dm755 misc/linux/flatpak/ClassiCubeLauncher -t ${FLATPAK_DEST}/bin",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.svg ${FLATPAK_DEST}/share/icons/hicolor/scalable/apps/net.classicube.flatpak.client.svg",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.desktop ${FLATPAK_DEST}/share/applications/net.classicube.flatpak.client.desktop",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.metainfo.xml ${FLATPAK_DEST}/share/metainfo/net.classicube.flatpak.client.metainfo.xml"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ClassiCube/ClassiCube.git"
+                }
+            ]
+        }
+    ]
+}

misc/linux/flatpak/net.classicube.flatpak.client.X11.json

@@ -0,0 +1,34 @@
+{
+    "id": "net.classicube.flatpak.client",
+    "runtime": "org.freedesktop.Platform",
+    "runtime-version": "23.08",
+    "sdk": "org.freedesktop.Sdk",
+    "command": "ClassiCubeLauncher",
+    "finish-args": [
+        "--socket=x11",
+        "--device=dri",
+        "--share=network",
+        "--share=ipc",
+        "--socket=pulseaudio"
+    ],
+    "modules": [
+        {
+            "name": "ClassiCube",
+            "buildsystem": "simple",
+            "build-commands": [
+                "gcc -fno-math-errno src/*.c -o src/ClassiCube -O1 -DCC_BUILD_FLATPAK -DCC_GFX_BACKEND=CC_GFX_BACKEND_GL2 -rdynamic -lm -lpthread -lX11 -lXi -lGL -ldl",
+                "install -Dm755 src/ClassiCube -t ${FLATPAK_DEST}/bin",
+                "install -Dm755 misc/linux/flatpak/ClassiCubeLauncher -t ${FLATPAK_DEST}/bin",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.svg ${FLATPAK_DEST}/share/icons/hicolor/scalable/apps/net.classicube.flatpak.client.svg",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.desktop ${FLATPAK_DEST}/share/applications/net.classicube.flatpak.client.desktop",
+                "install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.metainfo.xml ${FLATPAK_DEST}/share/metainfo/net.classicube.flatpak.client.metainfo.xml"
+            ],
+            "sources": [
+                {
+                    "type": "git",
+                    "url": "https://github.com/ClassiCube/ClassiCube.git"
+                }
+            ]
+        }
+    ]
+}

misc/linux/flatpak/net.classicube.flatpak.client.yml

@@ -1,29 +0,0 @@
-id: net.classicube.flatpak.client
-runtime: org.freedesktop.Platform
-runtime-version: '23.08'
-sdk: org.freedesktop.Sdk
-command: ClassiCubeLauncher
-finish-args:
-  - --socket=x11
-  - --device=dri
-  - --share=network
-  - --share=ipc
-  - --socket=pulseaudio
-modules:
-  - name: ClassiCube
-    buildsystem: simple
-    build-commands:
-      - gcc -fno-math-errno src/*.c -o src/ClassiCube -O1 -DCC_BUILD_FLATPAK -DCC_BUILD_GLMODERN -rdynamic -lm -lpthread -lX11 -lXi -lGL -ldl
-      - install -Dm755 src/ClassiCube -t ${FLATPAK_DEST}/bin
-      - install -Dm755 ClassiCubeLauncher -t ${FLATPAK_DEST}/bin
-      - install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.svg ${FLATPAK_DEST}/share/icons/hicolor/scalable/apps/net.classicube.flatpak.client.svg
-      - install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.desktop ${FLATPAK_DEST}/share/applications/net.classicube.flatpak.client.desktop
-      - install -Dm644 misc/linux/flatpak/net.classicube.flatpak.client.metainfo.xml ${FLATPAK_DEST}/share/metainfo/net.classicube.flatpak.client.metainfo.xml
-    sources:
-      - type: dir
-        path: ../../../
-      - type: script
-        dest-filename: ClassiCubeLauncher
-        commands:
-         - mkdir -p ${XDG_DATA_HOME}/ClassiCube
-         - cd ${XDG_DATA_HOME}/ClassiCube && exec /app/bin/ClassiCube "$@"