Add Discord Rich Presence support

Source/Core/UICommon/CMakeLists.txt

@@ -2,6 +2,7 @@ add_library(uicommon
   AutoUpdate.cpp
   CommandLineParse.cpp
   Disassembler.cpp
+	DiscordPresence.cpp
   GameFile.cpp
   GameFileCache.cpp
   UICommon.cpp

Source/Core/UICommon/DiscordPresence.cpp

@@ -0,0 +1,48 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#ifdef USE_DISCORD_PRESENCE
+
+#include "UICommon/DiscordPresence.h"
+
+#include <ctime>
+#include <discord-rpc/include/discord_rpc.h>
+
+#include "Core/ConfigManager.h"
+
+#endif
+
+namespace Discord
+{
+void Init()
+{
+#ifdef USE_DISCORD_PRESENCE
+  DiscordEventHandlers handlers = {};
+  // The number is the client ID for Dolphin, it's used for images and the appication name
+  Discord_Initialize("450033159212630028", &handlers, 1, nullptr);
+  UpdateDiscordPresence();
+#endif
+}
+
+void UpdateDiscordPresence()
+{
+#ifdef USE_DISCORD_PRESENCE
+  const std::string& title = SConfig::GetInstance().GetTitleDescription();
+
+  DiscordRichPresence discord_presence = {};
+  discord_presence.largeImageKey = "dolphin_logo";
+  discord_presence.largeImageText = "Dolphin is an emulator for the GameCube and the Wii.";
+  discord_presence.details = title.empty() ? "Not in-game" : title.c_str();
+  discord_presence.startTimestamp = std::time(nullptr);
+  Discord_UpdatePresence(&discord_presence);
+#endif
+}
+
+void Shutdown()
+{
+#ifdef USE_DISCORD_PRESENCE
+  Discord_Shutdown();
+#endif
+}
+}  // namespace Discord

Source/Core/UICommon/DiscordPresence.h

@@ -0,0 +1,12 @@
+// Copyright 2018 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+namespace Discord
+{
+void Init();
+void UpdateDiscordPresence();
+void Shutdown();
+}  // namespace Discord

Source/Core/UICommon/UICommon.cpp

@@ -33,6 +33,7 @@
 
 #include "InputCommon/GCAdapter.h"
 
+#include "UICommon/DiscordPresence.h"
 #include "UICommon/UICommon.h"
 #include "UICommon/USBUtils.h"
 
@@ -75,6 +76,7 @@ void Init()
   Config::AddConfigChangedCallback(InitCustomPaths);
   Config::AddLayer(ConfigLoaders::GenerateBaseConfigLoader());
   SConfig::Init();
+  Discord::Init();
   LogManager::Init();
   VideoBackendBase::PopulateList();
   WiimoteReal::LoadSettings();
@@ -90,6 +92,7 @@ void Shutdown()
   WiimoteReal::Shutdown();
   VideoBackendBase::ClearList();
   LogManager::Shutdown();
+  Discord::Shutdown();
   SConfig::Shutdown();
   Config::Shutdown();
 }

Source/Core/UICommon/UICommon.vcxproj

@@ -35,6 +35,16 @@
     <Import Project="..\..\VSProps\PCHUse.props" />
   </ImportGroup>
   <PropertyGroup Label="UserMacros" />
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">
+    <ClCompile>
+      <PreprocessorDefinitions>USE_DISCORD_PRESENCE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
+  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|x64'">
+    <ClCompile>
+      <PreprocessorDefinitions>USE_DISCORD_PRESENCE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
+  </ItemDefinitionGroup>
   <ItemGroup>
     <Text Include="CMakeLists.txt" />
   </ItemGroup>
@@ -49,6 +59,7 @@
   <ItemGroup>
     <ClCompile Include="AutoUpdate.cpp" />
     <ClCompile Include="CommandLineParse.cpp" />
+    <ClCompile Include="DiscordPresence.cpp" />
     <ClCompile Include="UICommon.cpp" />
     <ClCompile Include="Disassembler.cpp" />
     <ClCompile Include="USBUtils.cpp">
@@ -61,6 +72,7 @@
   <ItemGroup>
     <ClInclude Include="AutoUpdate.h" />
     <ClInclude Include="CommandLineParse.h" />
+    <ClInclude Include="DiscordPresence.h" />
     <ClInclude Include="UICommon.h" />
     <ClInclude Include="Disassembler.h" />
     <ClInclude Include="USBUtils.h" />