Frontends: Add Discord Presence support

CMakeLists.txt

@@ -7,6 +7,7 @@ set(CMAKE_MODULE_PATH "${CMAKE_SOURCE_DIR}/CMakeModules/")
 if(NOT ANDROID)
   option(BUILD_SDL_FRONTEND "Build the SDL frontend" ON)
   option(BUILD_QT_FRONTEND "Build the Qt frontend" ON)
+  option(ENABLE_DISCORD_PRESENCE "Build with Discord Rich Presence support" ON)
   option(USE_SDL2 "Link with SDL2 for controller support" ON)
 endif()
 

src/duckstation-qt/duckstation-qt.vcxproj

@@ -301,7 +301,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x86\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -322,7 +322,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x64\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -343,7 +343,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x86\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -366,7 +366,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x64\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -390,7 +390,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x86\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -413,7 +413,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x86\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>true</WholeProgramOptimization>
@@ -437,7 +437,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x64\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -460,7 +460,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\glad\Include;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\zlib\include;$(SolutionDir)dep\minizip\include;$(SolutionDir)src;$(SolutionDir)dep\msvc\qt5-x64\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>true</WholeProgramOptimization>

src/duckstation-qt/duckstation-qt.vcxproj.filters

@@ -37,6 +37,7 @@
     <ClCompile Include="d3d11hostdisplay.cpp" />
     <ClCompile Include="$(IntDir)qrc_resources.cpp" />
     <ClCompile Include="advancedsettingswidget.cpp" />
+    <ClCompile Include="$(IntDir)moc_advancedsettingswidget.cpp" />
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="qtsettingsinterface.h" />
@@ -45,7 +46,6 @@
     <ClInclude Include="qthostdisplay.h" />
     <ClInclude Include="d3d11hostdisplay.h" />
     <ClInclude Include="openglhostdisplay.h" />
-    <ClInclude Include="advancedsettingswidget.h" />
   </ItemGroup>
   <ItemGroup>
     <Filter Include="resources">
@@ -70,6 +70,7 @@
     <QtMoc Include="qtdisplaywidget.h" />
     <QtMoc Include="generalsettingswidget.h" />
     <QtMoc Include="qtprogresscallback.h" />
+    <QtMoc Include="advancedsettingswidget.h" />
   </ItemGroup>
   <ItemGroup>
     <QtUi Include="consolesettingswidget.ui" />
@@ -79,11 +80,9 @@
     <QtUi Include="gpusettingswidget.ui" />
     <QtUi Include="audiosettingswidget.ui" />
     <QtUi Include="generalsettingswidget.ui" />
+    <QtUi Include="advancedsettingswidget.ui" />
   </ItemGroup>
   <ItemGroup>
     <Natvis Include="qt5.natvis" />
   </ItemGroup>
-  <ItemGroup>
-    <None Include="advancedsettingswidget.ui" />
-  </ItemGroup>
 </Project>

src/duckstation-qt/generalsettingswidget.cpp

@@ -63,6 +63,18 @@ GeneralSettingsWidget::GeneralSettingsWidget(QtHostInterface* host_interface, QW
   dialog->registerWidgetHelp(
     m_ui.showSpeed, "Show Speed", "Unchecked",
     "Shows the current emulation speed of the system in the top-right corner of the display as a percentage.");
+
+  // Since this one is compile-time selected, we don't put it in the .ui file.
+#ifdef WITH_DISCORD_PRESENCE
+  {
+    QCheckBox* enableDiscordPresence = new QCheckBox(tr("Enable Discord Presence"), m_ui.groupBox_4);
+    SettingWidgetBinder::BindWidgetToBoolSetting(m_host_interface, enableDiscordPresence,
+                                                 QStringLiteral("Main/EnableDiscordPresence"));
+    m_ui.formLayout_4->addWidget(enableDiscordPresence, m_ui.formLayout_4->rowCount(), 0);
+    dialog->registerWidgetHelp(enableDiscordPresence, "Enable Discord Presence", "Unchecked",
+                               "Shows the game you are currently playing as part of your profile in Discord.");
+  }
+#endif
 }
 
 GeneralSettingsWidget::~GeneralSettingsWidget() = default;

src/duckstation-sdl/duckstation-sdl.vcxproj

@@ -217,7 +217,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -238,7 +238,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -259,7 +259,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -283,7 +283,7 @@
       </PrecompiledHeader>
       <WarningLevel>Level4</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;_CRT_SECURE_NO_WARNINGS;WIN32;_DEBUGFAST;_DEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
@@ -308,7 +308,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -331,7 +331,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>true</WholeProgramOptimization>
@@ -355,7 +355,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -378,7 +378,7 @@
       </PrecompiledHeader>
       <Optimization>MaxSpeed</Optimization>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_DISCORD_PRESENCE=1;_CRT_SECURE_NO_WARNINGS;WIN32;NDEBUG;_CONSOLE;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include;$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\nativefiledialog\include;$(SolutionDir)dep\glad\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <WholeProgramOptimization>true</WholeProgramOptimization>

src/frontend-common/CMakeLists.txt

@@ -13,6 +13,8 @@ add_library(frontend-common
   save_state_selector_ui.h
 )
 
+target_link_libraries(frontend-common PUBLIC core common imgui simpleini scmversion)
+
 if(SDL2_FOUND)
   target_sources(frontend-common PRIVATE 
     sdl_audio_stream.cpp
@@ -27,5 +29,7 @@ if(SDL2_FOUND)
   target_link_libraries(frontend-common PRIVATE ${SDL2_LIBRARIES})
 endif()
 
-target_link_libraries(frontend-common PUBLIC core common imgui simpleini scmversion)
+if(ENABLE_DISCORD_PRESENCE)
-
+  target_compile_definitions(frontend-common PUBLIC -DWITH_DISCORD_PRESENCE=1)
+  target_link_libraries(frontend-common PRIVATE discord-rpc)
+endif()

src/frontend-common/common_host_interface.cpp

@@ -15,9 +15,11 @@
 #include "sdl_audio_stream.h"
 #include "sdl_controller_interface.h"
 #endif
+#include "discord_rpc.h"
 #include "ini_settings_interface.h"
 #include <cstdio>
 #include <cstring>
+#include <ctime>
 Log_SetChannel(CommonHostInterface);
 
 CommonHostInterface::CommonHostInterface() = default;
@@ -57,6 +59,10 @@ void CommonHostInterface::Shutdown()
 {
   HostInterface::Shutdown();
 
+#ifdef WITH_DISCORD_PRESENCE
+  ShutdownDiscordPresence();
+#endif
+
   m_system.reset();
   m_audio_stream.reset();
   if (m_display)
@@ -293,6 +299,9 @@ bool CommonHostInterface::ParseCommandLineParameters(int argc, char* argv[],
 
 void CommonHostInterface::PollAndUpdate()
 {
+#ifdef WITH_DISCORD_PRESENCE
+  PollDiscordPresence();
+#endif
 }
 
 bool CommonHostInterface::IsFullscreen() const
@@ -363,6 +372,10 @@ void CommonHostInterface::OnSystemDestroyed()
 void CommonHostInterface::OnRunningGameChanged()
 {
   HostInterface::OnRunningGameChanged();
+
+#ifdef WITH_DISCORD_PRESENCE
+  UpdateDiscordPresence();
+#endif
 }
 
 void CommonHostInterface::OnControllerTypeChanged(u32 slot)
@@ -410,11 +423,19 @@ void CommonHostInterface::SetDefaultSettings(SettingsInterface& si)
   si.SetStringValue("Hotkeys", "IncreaseResolutionScale", "Keyboard/PageUp");
   si.SetStringValue("Hotkeys", "DecreaseResolutionScale", "Keyboard/PageDown");
   si.SetStringValue("Hotkeys", "ToggleSoftwareRendering", "Keyboard/End");
+
+#ifdef WITH_DISCORD_PRESENCE
+  si.SetBoolValue("Main", "EnableDiscordPresence", false);
+#endif
 }
 
 void CommonHostInterface::ApplySettings(SettingsInterface& si)
 {
   HostInterface::ApplySettings(si);
+
+#ifdef WITH_DISCORD_PRESENCE
+  SetDiscordPresenceEnabled(si.GetBoolValue("Main", "EnableDiscordPresence", false));
+#endif
 }
 
 std::optional<CommonHostInterface::HostKeyCode>
@@ -1042,3 +1063,75 @@ bool CommonHostInterface::SaveInputProfile(const char* profile_path, SettingsInt
   profile.Save();
   return true;
 }
+
+#ifdef WITH_DISCORD_PRESENCE
+
+void CommonHostInterface::SetDiscordPresenceEnabled(bool enabled)
+{
+  if (m_discord_presence_enabled == enabled)
+    return;
+
+  m_discord_presence_enabled = enabled;
+  if (enabled)
+    InitializeDiscordPresence();
+  else
+    ShutdownDiscordPresence();
+}
+
+void CommonHostInterface::InitializeDiscordPresence()
+{
+  if (m_discord_presence_active)
+    return;
+
+  DiscordEventHandlers handlers = {};
+  Discord_Initialize("705325712680288296", &handlers, 0, nullptr);
+  m_discord_presence_active = true;
+
+  UpdateDiscordPresence();
+}
+
+void CommonHostInterface::ShutdownDiscordPresence()
+{
+  if (!m_discord_presence_active)
+    return;
+
+  Discord_ClearPresence();
+  Discord_Shutdown();
+  m_discord_presence_active = false;
+}
+
+void CommonHostInterface::UpdateDiscordPresence()
+{
+  if (!m_discord_presence_active)
+    return;
+
+  DiscordRichPresence rp = {};
+  rp.smallImageKey = "duckstation_logo";
+  rp.smallImageText = "DuckStation PS1/PSX Emulator";
+  rp.startTimestamp = std::time(nullptr);
+
+  SmallString details_string;
+  if (m_system)
+  {
+    details_string.AppendFormattedString("%s (%s)", m_system->GetRunningTitle().c_str(),
+                                         m_system->GetRunningCode().c_str());
+  }
+  else
+  {
+    details_string.AppendString("No Game Running");
+  }
+
+  rp.details = details_string;
+
+  Discord_UpdatePresence(&rp);
+}
+
+void CommonHostInterface::PollDiscordPresence()
+{
+  if (!m_discord_presence_active)
+    return;
+
+  Discord_RunCallbacks();
+}
+
+#endif

src/frontend-common/common_host_interface.h

@@ -128,6 +128,14 @@ private:
   void UpdateHotkeyInputMap(SettingsInterface& si);
   void ClearAllControllerBindings(SettingsInterface& si);
 
+#ifdef WITH_DISCORD_PRESENCE
+  void SetDiscordPresenceEnabled(bool enabled);
+  void InitializeDiscordPresence();
+  void ShutdownDiscordPresence();
+  void UpdateDiscordPresence();
+  void PollDiscordPresence();
+#endif
+
   HotkeyInfoList m_hotkeys;
 
   std::unique_ptr<FrontendCommon::SaveStateSelectorUI> m_save_state_selector_ui;
@@ -153,4 +161,10 @@ private:
 
   // running in batch mode? i.e. exit after stopping emulation
   bool m_batch_mode = false;
+
+#ifdef WITH_DISCORD_PRESENCE
+  // discord rich presence
+  bool m_discord_presence_enabled = false;
+  bool m_discord_presence_active = false;
+#endif
 };

src/frontend-common/frontend-common.vcxproj

@@ -38,6 +38,9 @@
     <ProjectReference Include="..\..\dep\cubeb\cubeb.vcxproj">
       <Project>{72f9423c-91ee-4487-aac6-555ed6f61aa1}</Project>
     </ProjectReference>
+    <ProjectReference Include="..\..\dep\discord-rpc\discord-rpc.vcxproj">
+      <Project>{4266505b-dbaf-484b-ab31-b53b9c8235b3}</Project>
+    </ProjectReference>
     <ProjectReference Include="..\..\dep\glad\glad.vcxproj">
       <Project>{43540154-9e1e-409c-834f-b84be5621388}</Project>
     </ProjectReference>
@@ -221,10 +224,10 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>
       <ConformanceMode>true</ConformanceMode>
@@ -248,10 +251,10 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WITH_SDL2=1;_ITERATOR_DEBUG_LEVEL=1;WIN32;_DEBUGFAST;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;WIN32;_DEBUGFAST;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <SupportJustMyCode>false</SupportJustMyCode>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
@@ -278,10 +281,10 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>
       <ConformanceMode>true</ConformanceMode>
@@ -305,10 +308,10 @@
       </PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WITH_SDL2=1;_ITERATOR_DEBUG_LEVEL=1;WIN32;_DEBUGFAST;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;_ITERATOR_DEBUG_LEVEL=1;WIN32;_DEBUGFAST;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <SupportJustMyCode>false</SupportJustMyCode>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
@@ -337,9 +340,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -366,9 +369,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <OmitFramePointers>true</OmitFramePointers>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>
@@ -397,9 +400,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>
       <WholeProgramOptimization>false</WholeProgramOptimization>
@@ -426,9 +429,9 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WITH_SDL2=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WITH_SDL2=1;WITH_DISCORD_PRESENCE=1;WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
-      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>$(SolutionDir)dep\msvc\include\SDL;$(SolutionDir)dep\imgui\include;$(SolutionDir)dep\simpleini\include;$(SolutionDir)dep\discord-rpc\include;$(SolutionDir)src;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <OmitFramePointers>true</OmitFramePointers>
       <MultiProcessorCompilation>true</MultiProcessorCompilation>
       <LanguageStandard>stdcpp17</LanguageStandard>