Fix performance

SoundSwitch/Framework/Configuration/Device/DeviceInfoCollection.cs

@@ -0,0 +1,150 @@
+using System;
+using System.Collections;
+using System.Collections.Generic;
+using System.Diagnostics;
+using System.Linq;
+using NAudio.CoreAudioApi;
+
+namespace SoundSwitch.Framework.Configuration.Device
+{
+    public class DeviceInfoCollection : ICollection<DeviceInfo>
+    {
+        private readonly Dictionary<string, DeviceInfo> _deviceByName = new Dictionary<string, DeviceInfo>();
+        private readonly Dictionary<string, DeviceInfo> _deviceById = new Dictionary<string, DeviceInfo>();
+
+        private readonly HashSet<DeviceInfo> _original;
+
+        public DeviceInfoCollection(HashSet<DeviceInfo> devices)
+        {
+            _original = devices;
+            foreach (var deviceInfo in devices)
+            {
+                AddItem(deviceInfo);
+            }
+        }
+
+        /// <summary>
+        /// Intersect with MMDevices
+        /// </summary>
+        /// <param name="devices"></param>
+        /// <returns></returns>
+        public IEnumerable<MMDevice> IntersectWith(IEnumerable<MMDevice> devices)
+        {
+            var devicesResult = new Dictionary<string, MMDevice>();
+            foreach (var mmDevice in devices)
+            {
+                if (devicesResult.ContainsKey(mmDevice.ID))
+                    continue;
+
+                if (!_deviceById.ContainsKey(mmDevice.ID) && !_deviceByName.ContainsKey(mmDevice.FriendlyName))
+                    continue;
+
+                devicesResult.Add(mmDevice.ID, mmDevice);
+
+            }
+
+            return devicesResult.Values;
+
+        }
+
+        public IEnumerator<DeviceInfo> GetEnumerator()
+        {
+            return _deviceById.Values.GetEnumerator();
+        }
+
+        IEnumerator IEnumerable.GetEnumerator()
+        {
+            return GetEnumerator();
+        }
+
+        public void Add(DeviceInfo item)
+        {
+            AddItem(item, true);
+        }
+
+        /// <summary>
+        /// Add Item and update or not the original
+        /// </summary>
+        /// <param name="item"></param>
+        /// <param name="updateOriginal"></param>
+        private void AddItem(DeviceInfo item, bool updateOriginal = false)
+        {
+            if (item == null)
+            {
+                return;
+            }
+
+            try
+            {
+                _deviceById.Add(item.Id, item);
+            }
+            catch (ArgumentException)
+            {
+            }
+
+            try
+            {
+                _deviceByName.Add(item.Name, item);
+            }
+            catch (ArgumentException)
+            {
+            }
+
+            if (updateOriginal)
+            {
+                _original.Add(item);
+            }
+        }
+
+        public void Clear()
+        {
+            _deviceById.Clear();
+            _deviceByName.Clear();
+            _original.Clear();
+        }
+
+        public bool Contains(DeviceInfo item)
+        {
+            return item != null && (_deviceById.ContainsKey(item.Id) || _deviceByName.ContainsKey(item.Name));
+        }
+
+        public void CopyTo(DeviceInfo[] array, int arrayIndex)
+        {
+            throw new System.NotImplementedException();
+        }
+
+        public bool Remove(DeviceInfo item)
+        {
+            if (item == null)
+            {
+                return false;
+            }
+
+            var result = _original.RemoveWhere((info => info?.Id == item.Id || info?.Name == item.Name)) > 0;
+
+            try
+            {
+                result &= _deviceById.Remove(item.Id);
+            }
+            catch (ArgumentException)
+            {
+
+            }
+
+            try
+            {
+                result &= _deviceByName.Remove(item.Name);
+            }
+            catch (ArgumentException)
+            {
+
+            }
+
+            return result;
+        }
+
+        public int Count => _deviceById.Count;
+
+        public bool IsReadOnly => false;
+    }
+}

SoundSwitch/Model/AppModel.cs

@@ -52,6 +52,9 @@ private AppModel()
         public TrayIcon TrayIcon { get; set; }
         private CachedSound _customNotificationCachedSound;
         private readonly DeviceCyclerManager _deviceCyclerManager;
+        private DeviceInfoCollection _deviceSelectedList;
+
+
 
         public CachedSound CustomNotificationSound
         {
@@ -102,15 +105,23 @@ public bool IncludeBetaVersions
         }
 
 
-        public HashSet<DeviceInfo> SelectedDevices { get; } = AppConfigs.Configuration.SelectedDevices;
+        public DeviceInfoCollection SelectedDevices
+        {
+            get
+            {
+                if (_deviceSelectedList != null)
+                    return _deviceSelectedList;
+                return _deviceSelectedList = new DeviceInfoCollection(AppConfigs.Configuration.SelectedDevices);
+            }
+        }
 
         public ICollection<MMDevice> AvailablePlaybackDevices
         {
             get
             {
                 using (var devices = ActiveAudioDeviceLister.GetPlaybackDevices())
                 {
-                    return devices.Where((device) => SelectedDevices.Any((info => new DeviceInfo(device).Equals(info)))).ToList();
+                    return SelectedDevices.IntersectWith(devices).ToList();
                 }
             }
         }
@@ -123,7 +134,7 @@ public ICollection<MMDevice> AvailableRecordingDevices
             {
                 using (var devices = ActiveAudioDeviceLister.GetRecordingDevices())
                 {
-                    return devices.Where((device) => SelectedDevices.Any((info => new DeviceInfo(device).Equals(info)))).ToList();
+                    return SelectedDevices.IntersectWith(devices).ToList();
                 }
             }
         }
@@ -288,17 +299,19 @@ private int SaveState(object state)
         /// <returns></returns>
         public bool SelectDevice(MMDevice device)
         {
-            var result = false;
-            DeviceListChanged eventChanged = null;
-            result = SelectedDevices.Add(new DeviceInfo(device));
-            eventChanged = new DeviceListChanged(SelectedDevices, (DeviceType)device.DataFlow);
-
-            if (result)
+            try
             {
-                SelectedDeviceChanged?.Invoke(this, eventChanged);
-                AppConfigs.Configuration.Save();
+                SelectedDevices.Add(new DeviceInfo(device));
             }
-            return result;
+            catch (ArgumentException)
+            {
+                return false;
+            }
+
+            SelectedDeviceChanged?.Invoke(this, new DeviceListChanged(SelectedDevices, (DeviceType)device.DataFlow));
+            AppConfigs.Configuration.Save();
+
+            return true;
         }
 
         /// <summary>
@@ -309,17 +322,23 @@ public bool SelectDevice(MMDevice device)
         public bool UnselectDevice(MMDevice device)
         {
             var result = false;
-            var deviceToRemove = new DeviceInfo(device);
-            DeviceListChanged eventChanged = null;
-            result = SelectedDevices.RemoveWhere((info => info.Equals(deviceToRemove))) > 0;
-            eventChanged = new DeviceListChanged(SelectedDevices, (DeviceType)device.DataFlow);
+            try
+            {
+                result = SelectedDevices.Remove(new DeviceInfo(device));
+            }
+            catch (ArgumentException)
+            {
+                return false;
+            }
 
             if (result)
             {
-                SelectedDeviceChanged?.Invoke(this, eventChanged);
+                SelectedDeviceChanged?.Invoke(this,
+                    new DeviceListChanged(SelectedDevices, (DeviceType) device.DataFlow));
                 AppConfigs.Configuration.Save();
             }
-            return result;
+
+            return true;
         }
 
         #endregion

SoundSwitch/Model/IAppModel.cs

@@ -35,7 +35,7 @@ public interface IAppModel
         /// <summary>
         /// Devices selected for Switching
         /// </summary>
-        HashSet<DeviceInfo> SelectedDevices { get; }
+        DeviceInfoCollection SelectedDevices { get; }
         /// <summary>
         /// An union between the Active <see cref="IAudioDevice" /> of Windows and <see cref="SelectedPlaybackDevicesList" />
         /// </summary>

SoundSwitch/SoundSwitch.csproj

@@ -258,6 +258,7 @@
     <Compile Include="Framework\Banner\BannerData.cs" />
     <Compile Include="Framework\Banner\BannerManager.cs" />
     <Compile Include="Framework\Configuration\Device\DeviceInfo.cs" />
+    <Compile Include="Framework\Configuration\Device\DeviceInfoCollection.cs" />
     <Compile Include="Framework\Configuration\IPCConfiguration.cs" />
     <Compile Include="Framework\Configuration\AppConfigs.cs" />
     <Compile Include="Framework\Configuration\ConfigurationManager.cs" />

SoundSwitch/UI/Forms/Settings.cs

@@ -149,8 +149,8 @@ public SettingsForm()
 
             // Playback and Recording
             var audioDeviceLister = new AudioDeviceLister(DeviceState.All);
-            PopulateAudioList(playbackListView, AppModel.Instance.SelectedDevices.Where((device) => device.Type == DataFlow.Render), audioDeviceLister.GetPlaybackDevices());
-            PopulateAudioList(recordingListView, AppModel.Instance.SelectedDevices.Where((device) => device.Type == DataFlow.Capture), audioDeviceLister.GetRecordingDevices());
+            PopulateAudioList(playbackListView, AppModel.Instance.SelectedDevices, audioDeviceLister.GetPlaybackDevices());
+            PopulateAudioList(recordingListView, AppModel.Instance.SelectedDevices, audioDeviceLister.GetRecordingDevices());
 
             _loaded = true;
         }
@@ -479,7 +479,7 @@ private ListViewItem GenerateListViewItem(MMDevice device, IEnumerable<DeviceInf
                 Tag = device
             };
             var selectedDevice = new DeviceInfo(device);
-            if (selected.Any((info => selectedDevice.Equals(info))))
+            if (selected.Contains(selectedDevice))
             {
                 listViewItem.Checked = true;
                 listViewItem.Group = listView.Groups["selectedGroup"];
@@ -522,7 +522,7 @@ private void ListViewItemChecked(object sender, ItemCheckEventArgs e)
                         throw new ArgumentOutOfRangeException();
                 }
             }
-            catch (Exception)
+            catch (Exception exception)
             {
                 e.NewValue = e.CurrentValue;
             }