Add Discord Rich Presence support

Externals/discord-rpc/include/discord_register.h

@@ -0,0 +1,26 @@
+#pragma once
+
+#if defined(DISCORD_DYNAMIC_LIB)
+#  if defined(_WIN32)
+#    if defined(DISCORD_BUILDING_SDK)
+#      define DISCORD_EXPORT __declspec(dllexport)
+#    else
+#      define DISCORD_EXPORT __declspec(dllimport)
+#    endif
+#  else
+#    define DISCORD_EXPORT __attribute__((visibility("default")))
+#  endif
+#else
+#  define DISCORD_EXPORT
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+DISCORD_EXPORT void Discord_Register(const char* applicationId, const char* command);
+DISCORD_EXPORT void Discord_RegisterSteamGame(const char* applicationId, const char* steamId);
+
+#ifdef __cplusplus
+}
+#endif

Externals/discord-rpc/include/discord_rpc.h

@@ -0,0 +1,87 @@
+#pragma once
+#include <stdint.h>
+
+// clang-format off
+
+#if defined(DISCORD_DYNAMIC_LIB)
+#  if defined(_WIN32)
+#    if defined(DISCORD_BUILDING_SDK)
+#      define DISCORD_EXPORT __declspec(dllexport)
+#    else
+#      define DISCORD_EXPORT __declspec(dllimport)
+#    endif
+#  else
+#    define DISCORD_EXPORT __attribute__((visibility("default")))
+#  endif
+#else
+#  define DISCORD_EXPORT
+#endif
+
+// clang-format on
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct DiscordRichPresence {
+    const char* state;   /* max 128 bytes */
+    const char* details; /* max 128 bytes */
+    int64_t startTimestamp;
+    int64_t endTimestamp;
+    const char* largeImageKey;  /* max 32 bytes */
+    const char* largeImageText; /* max 128 bytes */
+    const char* smallImageKey;  /* max 32 bytes */
+    const char* smallImageText; /* max 128 bytes */
+    const char* partyId;        /* max 128 bytes */
+    int partySize;
+    int partyMax;
+    const char* matchSecret;    /* max 128 bytes */
+    const char* joinSecret;     /* max 128 bytes */
+    const char* spectateSecret; /* max 128 bytes */
+    int8_t instance;
+} DiscordRichPresence;
+
+typedef struct DiscordUser {
+    const char* userId;
+    const char* username;
+    const char* discriminator;
+    const char* avatar;
+} DiscordUser;
+
+typedef struct DiscordEventHandlers {
+    void (*ready)(const DiscordUser* request);
+    void (*disconnected)(int errorCode, const char* message);
+    void (*errored)(int errorCode, const char* message);
+    void (*joinGame)(const char* joinSecret);
+    void (*spectateGame)(const char* spectateSecret);
+    void (*joinRequest)(const DiscordUser* request);
+} DiscordEventHandlers;
+
+#define DISCORD_REPLY_NO 0
+#define DISCORD_REPLY_YES 1
+#define DISCORD_REPLY_IGNORE 2
+
+DISCORD_EXPORT void Discord_Initialize(const char* applicationId,
+                                       DiscordEventHandlers* handlers,
+                                       int autoRegister,
+                                       const char* optionalSteamId);
+DISCORD_EXPORT void Discord_Shutdown(void);
+
+/* checks for incoming messages, dispatches callbacks */
+DISCORD_EXPORT void Discord_RunCallbacks(void);
+
+/* If you disable the lib starting its own io thread, you'll need to call this from your own */
+#ifdef DISCORD_DISABLE_IO_THREAD
+DISCORD_EXPORT void Discord_UpdateConnection(void);
+#endif
+
+DISCORD_EXPORT void Discord_UpdatePresence(const DiscordRichPresence* presence);
+DISCORD_EXPORT void Discord_ClearPresence(void);
+
+DISCORD_EXPORT void Discord_Respond(const char* userid, /* DISCORD_REPLY_ */ int reply);
+
+DISCORD_EXPORT void Discord_UpdateHandlers(DiscordEventHandlers* handlers);
+
+#ifdef __cplusplus
+} /* extern "C" */
+#endif

Source/Core/DolphinQt2/DolphinQt2.vcxproj

@@ -40,8 +40,8 @@
   </PropertyGroup>
   <ItemDefinitionGroup>
     <Link>
-      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;$(ExternalsDir)discord-rpc\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;discord-rpc.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <ClCompile>
       <AdditionalIncludeDirectories>$(ProjectDir)VideoInterface;$(ProjectDir)GameList;$(ProjectDir)Debugger;$(ProjectDir)Settings;$(ProjectDir)Config;$(ProjectDir)Config\Mapping;$(ProjectDir)Config\Graphics;$(ProjectDir)NetPlay;$(ProjectDir)QtUtils;$(ProjectDir)TAS;$(ProjectDir)FIFO;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

Source/Core/DolphinQt2/MainWindow.cpp

@@ -79,6 +79,7 @@
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
+#include "UICommon/DiscordPresence.h"
 #include "UICommon/UICommon.h"
 
 #if defined(HAVE_XRANDR) && HAVE_XRANDR
@@ -569,6 +570,7 @@ void MainWindow::OnStopComplete()
   m_stop_requested = false;
   HideRenderWidget();
   EnableScreenSaver(true);
+  Discord::UpdateDiscordPresence();
 
   SetFullScreenResolution(false);
 
@@ -719,6 +721,7 @@ void MainWindow::StartGame(std::unique_ptr<BootParameters>&& parameters)
     return;
   }
   ShowRenderWidget();
+  Discord::UpdateDiscordPresence();
 
 #ifdef Q_OS_WIN
   // Prevents Windows from sleeping, turning off the display, or idling

Source/Core/DolphinWX/DolphinWX.vcxproj

@@ -38,8 +38,8 @@
   <PropertyGroup Label="UserMacros" />
   <ItemDefinitionGroup>
     <Link>
-      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;$(ExternalsDir)discord-rpc\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;discord-rpc.lib;%(AdditionalDependencies)</AdditionalDependencies>
     </Link>
     <ResourceCompile>
       <AdditionalIncludeDirectories>$(ExternalsDir)wxWidgets3\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>

Source/Core/DolphinWX/FrameTools.cpp

@@ -91,6 +91,7 @@
 
 #include "InputCommon/ControllerInterface/ControllerInterface.h"
 
+#include "UICommon/DiscordPresence.h"
 #include "UICommon/GameFile.h"
 #include "UICommon/UICommon.h"
 
@@ -744,6 +745,7 @@ void CFrame::StartGame(std::unique_ptr<BootParameters> boot)
   else
   {
     EnableScreenSaver(false);
+    Discord::UpdateDiscordPresence();
 
     // We need this specifically to support setting the focus properly when using
     // the 'render to main window' feature on Windows
@@ -930,6 +932,7 @@ void CFrame::OnStopped()
   wxPostEvent(GetMenuBar(), wxCommandEvent{DOLPHIN_EVT_UPDATE_LOAD_WII_MENU_ITEM});
 
   EnableScreenSaver(true);
+  Discord::UpdateDiscordPresence();
 
   m_render_frame->SetTitle(StrToWxStr(Common::scm_rev_str));
 

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" />

Source/UnitTests/UnitTests.vcxproj

@@ -45,8 +45,8 @@
         The following libs are needed since we pull in pretty much the entire
         dolphin codebase.
         -->
-      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>$(ExternalsDir)ffmpeg\lib;$(ExternalsDir)discord-rpc\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
-      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalDependencies>avrt.lib;iphlpapi.lib;winmm.lib;setupapi.lib;opengl32.lib;glu32.lib;rpcrt4.lib;comctl32.lib;avcodec.lib;avformat.lib;avutil.lib;swresample.lib;swscale.lib;Shlwapi.lib;discord-rpc.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <SubSystem>Console</SubSystem>
     </Link>
   </ItemDefinitionGroup>