[App] Add support for Discord rich presence.

.gitmodules

@@ -40,6 +40,12 @@
 [submodule "third_party/volk"]
 	path = third_party/volk
 	url = https://github.com/zeux/volk.git
+[submodule "third_party/discord-rpc"]
+	path = third_party/discord-rpc
+	url = https://github.com/discordapp/discord-rpc
+[submodule "third_party/rapidjson"]
+	path = third_party/rapidjson
+	url = https://github.com/Tencent/rapidjson.git
 [submodule "third_party/aes_128"]
 	path = third_party/aes_128
 	url = https://github.com/openluopworld/aes_128.git

premake5.lua

@@ -232,6 +232,7 @@ solution("xenia")
   -- Include third party files first so they don't have to deal with gflags.
   include("third_party/aes_128.lua")
   include("third_party/capstone.lua")
+  include("third_party/discord-rpc.lua")
   include("third_party/gflags.lua")
   include("third_party/glew.lua")
   include("third_party/glslang-spirv.lua")
@@ -246,6 +247,7 @@ solution("xenia")
 
   include("src/xenia")
   include("src/xenia/app")
+  include("src/xenia/app/discord")
   include("src/xenia/apu")
   include("src/xenia/apu/nop")
   include("src/xenia/base")

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

@@ -0,0 +1,29 @@
+/**
+******************************************************************************
+* 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

@@ -0,0 +1,20 @@
+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"
+  })

src/xenia/app/emulator_window.cc

@@ -7,12 +7,15 @@
  ******************************************************************************
  */
 
+#include <gflags/gflags.h>
+
 #include "xenia/app/emulator_window.h"
 
 // Autogenerated by `xb premake`.
 #include "build/version.h"
 
 #include "third_party/imgui/imgui.h"
+#include "xenia/app/discord/discord_presence.h"
 #include "xenia/base/clock.h"
 #include "xenia/base/debugging.h"
 #include "xenia/base/logging.h"
@@ -26,6 +29,8 @@
 #include "xenia/ui/imgui_dialog.h"
 #include "xenia/ui/imgui_drawer.h"
 
+DEFINE_bool(discord, false, "Enable Discord rich presence");
+
 namespace xe {
 namespace app {
 
@@ -80,6 +85,11 @@ bool EmulatorWindow::Initialize() {
     return false;
   }
 
+  if (FLAGS_discord) {
+    discord::DiscordPresence::InitializeDiscord();
+    discord::DiscordPresence::NotPlaying();
+  }
+
   UpdateTitle();
 
   window_->on_closed.AddListener([this](UIEvent* e) { loop_->Quit(); });
@@ -334,6 +344,9 @@ void EmulatorWindow::FileOpen() {
 void EmulatorWindow::FileClose() {
   if (emulator_->is_title_open()) {
     emulator_->TerminateTitle();
+    if (FLAGS_discord) {
+      discord::DiscordPresence::NotPlaying();
+    }
   }
 }
 
@@ -431,6 +444,9 @@ void EmulatorWindow::UpdateTitle() {
     auto game_title = emulator()->game_title();
     title += xe::format_string(L" | [%.8X] %s", emulator()->title_id(),
                                game_title.c_str());
+    if (FLAGS_discord) {
+      discord::DiscordPresence::PlayingTitle(game_title);
+    }
   }
 
   auto graphics_system = emulator()->graphics_system();

src/xenia/app/premake5.lua

@@ -10,6 +10,7 @@ project("xenia-app")
   links({
     "aes_128",
     "capstone",
+    "discord-rpc",
     "gflags",
     "glew",
     "glslang-spirv",
@@ -20,6 +21,7 @@ project("xenia-app")
     "snappy",
     "spirv-tools",
     "volk",
+    "xenia-app-discord",
     "xenia-apu",
     "xenia-apu-nop",
     "xenia-base",

third_party/discord-rpc

@@ -0,0 +1 @@
+Subproject commit ba9fe00c4de1d680cdc56605d9c0d2b4cf8e7a07

third_party/discord-rpc.lua

@@ -0,0 +1,37 @@
+group("third_party")
+project("discord-rpc")
+  uuid("012f6131-efc0-4abd-852d-a33640732d4c")
+  kind("StaticLib")
+  language("C++")
+  links({
+  })
+  defines({
+    "_LIB",
+  })
+  includedirs({
+    "discord-rpc/include",
+    "rapidjson/include"
+  })
+  files({
+    "discord-rpc/src/connection.h",
+    "discord-rpc/src/discord_rpc.cpp",
+    "discord-rpc/src/msg_queue.h",
+    "discord-rpc/src/rpc_connection.cpp",
+    "discord-rpc/src/rpc_connection.h",
+    "discord-rpc/src/serialization.cpp",
+    "discord-rpc/src/serialization.h"
+  })
+  filter("platforms:Linux")
+    files({
+      "discord-rpc/src/connection_unix.cpp",
+      "discord-rpc/src/discord_register_linux.cpp"
+    })
+  filter("platforms:Mac")
+    files({
+      "discord-rpc/src/discord_register_osx.m"
+    })
+  filter("platforms:Windows")
+    files({
+      "discord-rpc/src/connection_win.cpp",
+      "discord-rpc/src/discord_register_win.cpp"
+    })

third_party/rapidjson

@@ -0,0 +1 @@
+Subproject commit af223d44f4e8d3772cb1ac0ce8bc2a132b51717f