[App] Add support for Discord rich presence.

src/xenia/app/discord/discord_presence.cc

@@ -0,0 +1,56 @@
+/**
+******************************************************************************
+* Xenia : Xbox 360 Emulator Research Project                                 *
+******************************************************************************
+* Copyright 2015 Ben Vanik. All rights reserved.                             *
+* Released under the BSD license - see LICENSE in the root for more details. *
+******************************************************************************
+*/
+
+#include "discord_presence.h"
+#include "third_party/discord-rpc/include/discord_rpc.h"
+#include "xenia/base/string.h"
+
+namespace xe {
+namespace discord {
+
+void HandleDiscordReady(const DiscordUser* request) {}
+void HandleDiscordError(int errorCode, const char* message) {}
+void HandleDiscordJoinGame(const char* joinSecret) {}
+void HandleDiscordJoinRequest(const DiscordUser* request) {}
+void HandleDiscordSpectateGame(const char* spectateSecret) {}
+
+void DiscordPresence::InitializeDiscord() {
+  DiscordEventHandlers handlers = {};
+  handlers.ready = &HandleDiscordReady;
+  handlers.errored = &HandleDiscordError;
+  handlers.joinGame = &HandleDiscordJoinGame;
+  handlers.joinRequest = &HandleDiscordJoinRequest;
+  handlers.spectateGame = &HandleDiscordSpectateGame;
+  Discord_Initialize("606840046649081857", &handlers, 0, "");
+}
+
+void DiscordPresence::NotPlaying() {
+  DiscordRichPresence discordPresence = {};
+  discordPresence.state = "Idle";
+  discordPresence.details = "Standby";
+  discordPresence.largeImageKey = "default";
+  discordPresence.instance = 1;
+  Discord_UpdatePresence(&discordPresence);
+}
+
+void DiscordPresence::PlayingTitle(std::wstring game_title) {
+  auto discord_game_title = xe::to_string(game_title);
+  DiscordRichPresence discordPresence = {};
+  discordPresence.state = "In Game";
+  discordPresence.details = discord_game_title.c_str();
+  discordPresence.smallImageKey = "default";
+  discordPresence.largeImageKey = "defaultgame";
+  discordPresence.instance = 1;
+  Discord_UpdatePresence(&discordPresence);
+}
+
+void DiscordPresence::ShutdownDiscord() { Discord_Shutdown(); }
+
+}  // namespace discord
+}  // namespace xe

src/xenia/app/discord/discord_presence.h

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+/**
+******************************************************************************
+* Xenia : Xbox 360 Emulator Research Project                                 *
+******************************************************************************
+* Copyright 2015 Ben Vanik. All rights reserved.                             *
+* Released under the BSD license - see LICENSE in the root for more details. *
+******************************************************************************
+*/
+
+#ifndef XENIA_DISCORD_DISCORD_PRESENCE_H_
+#define XENIA_DISCORD_DISCORD_PRESENCE_H_
+
+#include <string>
+
+namespace xe {
+namespace discord {
+
+class DiscordPresence {
+ public:
+  static void InitializeDiscord();
+  static void NotPlaying();
+  static void PlayingTitle(std::wstring game_title);
+  static void ShutdownDiscord();
+};
+
+}  // namespace discord
+}  // namespace xe
+
+#endif  // XENIA_DISCORD_DISCORD_PRESENCE_H_

src/xenia/app/discord/premake5.lua

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+project_root = "../../../.."
+include(project_root.."/tools/build")
+
+group("src")
+project("xenia-app-discord")
+  uuid("d14c0885-22d2-40de-ab28-7b234ef2b949")
+  kind("StaticLib")
+  language("C++")
+  links({
+    "discord-rpc"
+  })
+  defines({
+  })
+  includedirs({
+    project_root.."/third_party/discord-rpc/src"
+  })
+  files({
+    "discord_presence.cc",
+    "discord_presence.h"
+  })