From 117e32a6fffc30cdb895aa98483af7df353a8dd1 Mon Sep 17 00:00:00 2001
From: mpnico <mpnico@gmail.com>
Date: Sat, 11 Sep 2021 22:08:25 +0200
Subject: Implement a "Pause Emulation" option & hotkey (#2428)

* Add a "Pause Emulation" option and hotkey

Closes Ryujinx#1604

* Refactoring how pause is handled

* Applied suggested changes from review

* Applied suggested fixes

* Pass correct suspend type to threads for suspend/resume

* Fix NRE after stoping emulation

* Removing SimulateWakeUpMessage call after resuming emulation

* Skip suspending non game process

* Pause the tickCounter in the ExecutionContext

* Refactoring tickCounter pause/resume as suggested

* Fix Config migration to add pause hotkey

* Fixed pausing only application threads

* Fix exiting emulator while paused

* Avoid pause/resume while already paused/resumed

* Cleanup unused code

* Avoid restarting audio if stopping emulation while in pause.

* Added suggested changes

* Fix ConfigurationState
---
 .../Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs       | 5 +++++
 Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs         | 8 ++++++++
 2 files changed, 13 insertions(+)

(limited to 'Ryujinx.Audio/Backends')

diff --git a/Ryujinx.Audio/Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs b/Ryujinx.Audio/Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs
index c0305f8a..0ae6a620 100644
--- a/Ryujinx.Audio/Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs
+++ b/Ryujinx.Audio/Backends/CompatLayer/CompatLayerHardwareDeviceDriver.cs
@@ -47,6 +47,11 @@ namespace Ryujinx.Audio.Backends.CompatLayer
             return _realDriver.GetUpdateRequiredEvent();
         }
 
+        public ManualResetEvent GetPauseEvent()
+        {
+            return _realDriver.GetPauseEvent();
+        }
+
         private uint SelectHardwareChannelCount(uint targetChannelCount)
         {
             if (_realDriver.SupportsChannelCount(targetChannelCount))
diff --git a/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs b/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs
index f24b359c..d729d3f6 100644
--- a/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs
+++ b/Ryujinx.Audio/Backends/Dummy/DummyHardwareDeviceDriver.cs
@@ -27,10 +27,12 @@ namespace Ryujinx.Audio.Backends.Dummy
     public class DummyHardwareDeviceDriver : IHardwareDeviceDriver
     {
         private ManualResetEvent _updateRequiredEvent;
+        private ManualResetEvent _pauseEvent;
 
         public DummyHardwareDeviceDriver()
         {
             _updateRequiredEvent = new ManualResetEvent(false);
+            _pauseEvent = new ManualResetEvent(true);
         }
 
         public IHardwareDeviceSession OpenDeviceSession(Direction direction, IVirtualMemoryManager memoryManager, SampleFormat sampleFormat, uint sampleRate, uint channelCount)
@@ -60,6 +62,11 @@ namespace Ryujinx.Audio.Backends.Dummy
             return _updateRequiredEvent;
         }
 
+        public ManualResetEvent GetPauseEvent()
+        {
+            return _pauseEvent;
+        }
+
         public void Dispose()
         {
             Dispose(true);
@@ -70,6 +77,7 @@ namespace Ryujinx.Audio.Backends.Dummy
             if (disposing)
             {
                 // NOTE: The _updateRequiredEvent will be disposed somewhere else.
+                _pauseEvent.Dispose();
             }
         }
 
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