Add discord-rpc submodule

.gitmodules

@@ -31,3 +31,6 @@
 [submodule "third_party/glm"]
 	path = third_party/glm
 	url = https://github.com/g-truc/glm
+[submodule "third_party/discord-rpc"]
+	path = third_party/discord-rpc
+	url = https://github.com/discord/discord-rpc

CMakeLists.txt

@@ -24,6 +24,7 @@ option(ENABLE_VULKAN "Enable Vulkan rendering backend" ON)
 option(ENABLE_LTO "Enable link-time optimization" OFF)
 option(ENABLE_USER_BUILD "Make a user-facing build. These builds have various assertions disabled, LTO, and more" OFF)
 option(ENABLE_HTTP_SERVER "Enable HTTP server. Used for Discord bot support" OFF)
+option(ENABLE_DISCORD_RPC "Compile with Discord RPC support (disabled by default)" ON)
 
 include_directories(${PROJECT_SOURCE_DIR}/include/)
 include_directories(${PROJECT_SOURCE_DIR}/include/kernel)
@@ -43,6 +44,11 @@ add_compile_definitions(NOMINMAX)             # Make windows.h not define min/ma
 add_compile_definitions(WIN32_LEAN_AND_MEAN)  # Make windows.h not include literally everything
 add_compile_definitions(SDL_MAIN_HANDLED)
 
+if(ENABLE_DISCORD_RPC)
+    add_subdirectory(third_party/discord-rpc)
+    include_directories(third_party/discord-rpc/include)
+endif()
+
 set(SDL_STATIC ON CACHE BOOL "" FORCE)
 set(SDL_SHARED OFF CACHE BOOL "" FORCE)
 set(SDL_TEST OFF CACHE BOOL "" FORCE)
@@ -256,6 +262,10 @@ endif()
 
 target_link_libraries(Alber PRIVATE dynarmic SDL2-static cryptopp glad)
 
+if(ENABLE_DISCORD_RPC)
+    target_compile_definitions(Alber PUBLIC "PANDA3DS_ENABLE_DISCORD_RPC=1")
+endif()
+
 if(ENABLE_OPENGL)
     target_compile_definitions(Alber PUBLIC "PANDA3DS_ENABLE_OPENGL=1")
     target_link_libraries(Alber PRIVATE resources_renderer_gl)

third_party/discord-rpc

@@ -0,0 +1 @@
+Subproject commit 963aa9f3e5ce81a4682c6ca3d136cddda614db33