Frontends: Add option for "Increase Timer Resolution"

src/core/host_interface.cpp

@@ -780,6 +780,7 @@ void HostInterface::SetDefaultSettings()
 
 void HostInterface::UpdateSettings(const std::function<void()>& apply_callback)
 {
+  const bool old_increase_timer_resolution = m_settings.increase_timer_resolution;
   const float old_emulation_speed = m_settings.emulation_speed;
   const CPUExecutionMode old_cpu_execution_mode = m_settings.cpu_execution_mode;
   const AudioBackend old_audio_backend = m_settings.audio_backend;
@@ -813,7 +814,8 @@ void HostInterface::UpdateSettings(const std::function<void()>& apply_callback)
     }
 
     if (m_settings.video_sync_enabled != old_vsync_enabled || m_settings.audio_sync_enabled != old_audio_sync_enabled ||
-        m_settings.speed_limiter_enabled != old_speed_limiter_enabled)
+        m_settings.speed_limiter_enabled != old_speed_limiter_enabled ||
+        m_settings.increase_timer_resolution != old_increase_timer_resolution)
     {
       UpdateSpeedLimiterState();
     }

src/duckstation-qt/consolesettingswidget.cpp

@@ -22,6 +22,8 @@ ConsoleSettingsWidget::ConsoleSettingsWidget(QtHostInterface* host_interface, QW
   SettingWidgetBinder::BindWidgetToBoolSetting(m_host_interface, m_ui.fastBoot, "BIOS/PatchFastBoot");
   SettingWidgetBinder::BindWidgetToBoolSetting(m_host_interface, m_ui.enableSpeedLimiter,
                                                "General/SpeedLimiterEnabled");
+  SettingWidgetBinder::BindWidgetToBoolSetting(m_host_interface, m_ui.increaseTimerResolution,
+                                               "General/IncreaseTimerResolution");
   SettingWidgetBinder::BindWidgetToNormalizedSetting(m_host_interface, m_ui.emulationSpeed, "General/EmulationSpeed",
                                                      100.0f);
   SettingWidgetBinder::BindWidgetToBoolSetting(m_host_interface, m_ui.pauseOnStart, "General/StartPaused");

src/duckstation-qt/consolesettingswidget.ui

@@ -140,13 +140,20 @@
        </widget>
       </item>
       <item row="5" column="0" colspan="2">
+       <widget class="QCheckBox" name="increaseTimerResolution">
+        <property name="text">
+         <string>Increase Timer Resolution</string>
+        </property>
+       </widget>
+      </item>
+      <item row="6" column="0" colspan="2">
        <widget class="QCheckBox" name="pauseOnStart">
         <property name="text">
          <string>Pause On Start</string>
         </property>
        </widget>
       </item>
-      <item row="6" column="0" colspan="2">
+      <item row="7" column="0" colspan="2">
        <widget class="QCheckBox" name="saveStateOnExit">
         <property name="text">
          <string>Save State On Exit</string>

src/duckstation-sdl/sdl_host_interface.cpp

@@ -1166,6 +1166,7 @@ void SDLHostInterface::DrawSettingsWindow()
 
         settings_changed |= ImGui::SliderFloat("##speed", &m_settings.emulation_speed, 0.25f, 5.0f);
         settings_changed |= ImGui::Checkbox("Enable Speed Limiter", &m_settings.speed_limiter_enabled);
+        settings_changed |= ImGui::Checkbox("Increase Timer Resolution", &m_settings.increase_timer_resolution);
         settings_changed |= ImGui::Checkbox("Pause On Start", &m_settings.start_paused);
         settings_changed |= ImGui::Checkbox("Save State On Exit", &m_settings.save_state_on_exit);
       }