UI - Add Volume Controls + Mute Toggle (F2) (#2871)

* Add the ability to toggle mute in the status bar.

* Add the ability to toggle mute in the status bar.

* Formatting fixes

* Add hotkey (F2) to mute

* Add default hotkey to config.json

* Add ability to change volume via slider.

* Fix Headless

* Fix SDL2 Problem : Credits to d3xMachina

* Remove unnecessary work

* Address gdk comments

* Toggling with Hotkey now properly restores volume to original level.

* Toggling with Hotkey now properly restores volume to original level.

* Update UI to show Volume % instead of Muted/Unmuted

* Clean up the volume ui a bit.

* Undo unintentionally committed code.

* Implement AudRen Support

* Restore intiial volume level in function definition.

* Finalize UI

* Finalize UI

* Use clamp for bounds check

* Use Math.Clamp for volume in soundio

* Address comments by gdkchan

* Address remaining comments

* Fix missing semicolon

* Address remaining gdkchan comment

* Fix comment

* Change /* to //

* Allow volume slider to change volume immediately.
Also force label text to cast to int to prevent decimals from showing in status bar

* Remove blank line

* Undo setting of volume level when "Cancel" is pressed.

* Fix allignment for settings window code

4 files changed, 72 insertions, 8 deletions

diff --git a/Ryujinx.Audio/Renderer/Dsp/AudioProcessor.cs b/Ryujinx.Audio/Renderer/Dsp/AudioProcessor.cs
index e15165b9..303de9bb 100644
--- a/Ryujinx.Audio/Renderer/Dsp/AudioProcessor.cs
+++ b/Ryujinx.Audio/Renderer/Dsp/AudioProcessor.cs
@@ -78,7 +78,7 @@ namespace Ryujinx.Audio.Renderer.Dsp
             }
         }
 
-        public void Start(IHardwareDeviceDriver deviceDriver)
+        public void Start(IHardwareDeviceDriver deviceDriver, float volume)
         {
             OutputDevices = new IHardwareDevice[Constants.AudioRendererSessionCountMax];
 
@@ -89,7 +89,7 @@ namespace Ryujinx.Audio.Renderer.Dsp
             for (int i = 0; i < OutputDevices.Length; i++)
             {
                 // TODO: Don't hardcode sample rate.
-                OutputDevices[i] = new HardwareDeviceImpl(deviceDriver, channelCount, Constants.TargetSampleRate);
+                OutputDevices[i] = new HardwareDeviceImpl(deviceDriver, channelCount, Constants.TargetSampleRate, volume);
             }
 
             _mailbox = new Mailbox<MailboxMessage>();
@@ -245,6 +245,33 @@ namespace Ryujinx.Audio.Renderer.Dsp
             _mailbox.SendResponse(MailboxMessage.Stop);
         }
 
+        public float GetVolume()
+        {
+            if (OutputDevices != null)
+            {
+                foreach (IHardwareDevice outputDevice in OutputDevices)
+                {
+                    if (outputDevice != null)
+                    {
+                        return outputDevice.GetVolume();
+                    }
+                }
+            }
+
+            return 0f;
+        }
+
+        public void SetVolume(float volume)
+        {
+            if (OutputDevices != null)
+            {
+                foreach (IHardwareDevice outputDevice in OutputDevices)
+                {
+                    outputDevice?.SetVolume(volume);
+                }
+            }
+        }
+
         public void Dispose()
         {
             Dispose(true);
diff --git a/Ryujinx.Audio/Renderer/Server/AudioRendererManager.cs b/Ryujinx.Audio/Renderer/Server/AudioRendererManager.cs
index 7518c447..d20c3c03 100644
--- a/Ryujinx.Audio/Renderer/Server/AudioRendererManager.cs
+++ b/Ryujinx.Audio/Renderer/Server/AudioRendererManager.cs
@@ -186,12 +186,12 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <summary>
         /// Start the <see cref="AudioProcessor"/> and worker thread.
         /// </summary>
-        private void StartLocked()
+        private void StartLocked(float volume)
         {
             _isRunning = true;
 
             // TODO: virtual device mapping (IAudioDevice)
-            Processor.Start(_deviceDriver);
+            Processor.Start(_deviceDriver, volume);
 
             _workerThread = new Thread(SendCommands)
             {
@@ -263,7 +263,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// Register a new <see cref="AudioRenderSystem"/>.
         /// </summary>
         /// <param name="renderer">The <see cref="AudioRenderSystem"/> to register.</param>
-        private void Register(AudioRenderSystem renderer)
+        private void Register(AudioRenderSystem renderer, float volume)
         {
             lock (_sessionLock)
             {
@@ -274,7 +274,7 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 if (!_isRunning)
                 {
-                    StartLocked();
+                    StartLocked(volume);
                 }
             }
         }
@@ -314,7 +314,7 @@ namespace Ryujinx.Audio.Renderer.Server
         /// <param name="workBufferSize">The guest work buffer size.</param>
         /// <param name="processHandle">The process handle of the application.</param>
         /// <returns>A <see cref="ResultCode"/> reporting an error or a success.</returns>
-        public ResultCode OpenAudioRenderer(out AudioRenderSystem renderer, IVirtualMemoryManager memoryManager, ref AudioRendererConfiguration parameter, ulong appletResourceUserId, ulong workBufferAddress, ulong workBufferSize, uint processHandle)
+        public ResultCode OpenAudioRenderer(out AudioRenderSystem renderer, IVirtualMemoryManager memoryManager, ref AudioRendererConfiguration parameter, ulong appletResourceUserId, ulong workBufferAddress, ulong workBufferSize, uint processHandle, float volume)
         {
             int sessionId = AcquireSessionId();
 
@@ -326,7 +326,7 @@ namespace Ryujinx.Audio.Renderer.Server
             {
                 renderer = audioRenderer;
 
-                Register(renderer);
+                Register(renderer, volume);
             }
             else
             {
@@ -338,6 +338,21 @@ namespace Ryujinx.Audio.Renderer.Server
             return result;
         }
 
+        public float GetVolume()
+        {
+            if (Processor != null)
+            {
+                return Processor.GetVolume();
+            }
+
+            return 0f;
+        }
+
+        public void SetVolume(float volume)
+        {
+            Processor?.SetVolume(volume);
+        }
+
         public void Dispose()
         {
             if (Interlocked.CompareExchange(ref _disposeState, 1, 0) == 0)
diff --git a/Ryujinx.Audio/Renderer/Utils/FileHardwareDevice.cs b/Ryujinx.Audio/Renderer/Utils/FileHardwareDevice.cs
index 2008bafc..8d717f6a 100644
--- a/Ryujinx.Audio/Renderer/Utils/FileHardwareDevice.cs
+++ b/Ryujinx.Audio/Renderer/Utils/FileHardwareDevice.cs
@@ -76,6 +76,17 @@ namespace Ryujinx.Audio.Renderer.Utils
             _stream.Flush();
         }
 
+        public void SetVolume(float volume)
+        {
+            // Do nothing, volume is not used for FileHardwareDevice at the moment.
+        }
+
+        public float GetVolume()
+        {
+            // FileHardwareDevice does not incorporate volume.
+            return 0;
+        }
+
         public uint GetChannelCount()
         {
             return _channelCount;
diff --git a/Ryujinx.Audio/Renderer/Utils/SplitterHardwareDevice.cs b/Ryujinx.Audio/Renderer/Utils/SplitterHardwareDevice.cs
index c5411ac0..e6be07c0 100644
--- a/Ryujinx.Audio/Renderer/Utils/SplitterHardwareDevice.cs
+++ b/Ryujinx.Audio/Renderer/Utils/SplitterHardwareDevice.cs
@@ -37,6 +37,17 @@ namespace Ryujinx.Audio.Renderer.Utils
             _secondaryDevice?.AppendBuffer(data, channelCount);
         }
 
+        public void SetVolume(float volume)
+        {
+            _baseDevice.SetVolume(volume);
+            _secondaryDevice.SetVolume(volume);
+        }
+
+        public float GetVolume()
+        {
+            return _baseDevice.GetVolume();
+        }
+
         public uint GetChannelCount()
         {
             return _baseDevice.GetChannelCount();