Rainbow LED

src/Ryujinx.Common/Configuration/Hid/Controller/LedConfigController.cs

@@ -12,6 +12,11 @@
         /// </summary>
         public bool TurnOffLed { get; set; }
         
+        /// <summary>
+        /// Ignores the color and uses the rainbow color functionality for the LED.
+        /// </summary>
+        public bool UseRainbow { get; set; }
+        
         /// <summary>
         ///     Packed RGB int of the color
         /// </summary>

src/Ryujinx.Common/Utilities/Rainbow.cs

@@ -0,0 +1,76 @@
+using System;
+using System.Drawing;
+
+namespace Ryujinx.Common.Utilities
+{
+    public class Rainbow
+    {
+        public const float Speed = 1;
+        
+        public static Color Color { get; private set; } = Color.Blue;
+
+        public static void Tick()
+        {
+            Color = HsbToRgb(
+                (Color.GetHue() + Speed) / 360,
+                1, 
+                1
+                );
+            
+            RainbowColorUpdated?.Invoke(Color.ToArgb());
+        }
+
+        public static event Action<int> RainbowColorUpdated;
+
+        private static Color HsbToRgb(float hue, float saturation, float brightness)
+        {
+            int r = 0, g = 0, b = 0;
+            if (saturation == 0)
+            {
+                r = g = b = (int)(brightness * 255.0f + 0.5f);
+            }
+            else
+            {
+                float h = (hue - (float)Math.Floor(hue)) * 6.0f;
+                float f = h - (float)Math.Floor(h);
+                float p = brightness * (1.0f - saturation);
+                float q = brightness * (1.0f - saturation * f);
+                float t = brightness * (1.0f - (saturation * (1.0f - f)));
+                switch ((int)h)
+                {
+                    case 0:
+                        r = (int)(brightness * 255.0f + 0.5f);
+                        g = (int)(t * 255.0f + 0.5f);
+                        b = (int)(p * 255.0f + 0.5f);
+                        break;
+                    case 1:
+                        r = (int)(q * 255.0f + 0.5f);
+                        g = (int)(brightness * 255.0f + 0.5f);
+                        b = (int)(p * 255.0f + 0.5f);
+                        break;
+                    case 2:
+                        r = (int)(p * 255.0f + 0.5f);
+                        g = (int)(brightness * 255.0f + 0.5f);
+                        b = (int)(t * 255.0f + 0.5f);
+                        break;
+                    case 3:
+                        r = (int)(p * 255.0f + 0.5f);
+                        g = (int)(q * 255.0f + 0.5f);
+                        b = (int)(brightness * 255.0f + 0.5f);
+                        break;
+                    case 4:
+                        r = (int)(t * 255.0f + 0.5f);
+                        g = (int)(p * 255.0f + 0.5f);
+                        b = (int)(brightness * 255.0f + 0.5f);
+                        break;
+                    case 5:
+                        r = (int)(brightness * 255.0f + 0.5f);
+                        g = (int)(p * 255.0f + 0.5f);
+                        b = (int)(q * 255.0f + 0.5f);
+                        break;
+                }
+            }
+            return Color.FromArgb(Convert.ToByte(255), Convert.ToByte(r), Convert.ToByte(g), Convert.ToByte(b));
+        }
+    }
+}

src/Ryujinx.Input.SDL2/SDL2Gamepad.cs

@@ -1,6 +1,7 @@
 using Ryujinx.Common.Configuration.Hid;
 using Ryujinx.Common.Configuration.Hid.Controller;
 using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
 using Ryujinx.HLE.HOS.Services.Hid;
 using SDL2;
 using System;
@@ -235,8 +236,11 @@ namespace Ryujinx.Input.SDL2
                 {
                     if (_configuration.Led.TurnOffLed)
                         (this as IGamepad).ClearLed();
+                    else if (_configuration.Led.UseRainbow)
+                        Rainbow.RainbowColorUpdated += clr => SetLed((uint)clr);
                     else
                         SetLed(_configuration.Led.LedColor);
+                    
                 }
                 
                 _buttonsUserMapping.Clear();

src/Ryujinx.SDL2.Common/SDL2Driver.cs

@@ -1,5 +1,6 @@
 using Ryujinx.Common.Configuration;
 using Ryujinx.Common.Logging;
+using Ryujinx.Common.Utilities;
 using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
@@ -167,6 +168,8 @@ namespace Ryujinx.SDL2.Common
                         HandleSDLEvent(ref evnt);
                     }
                 });
+                
+                Rainbow.Tick();
 
                 waitHandle.Wait(WaitTimeMs);
             }

src/Ryujinx/Assets/locales.json

@@ -7628,7 +7628,7 @@
         "ar_SA": "",
         "de_DE": "",
         "el_GR": "",
-        "en_US": "Custom LED",
+        "en_US": "LED",
         "es_ES": "",
         "fr_FR": "",
         "he_IL": "",
@@ -7672,6 +7672,31 @@
         "zh_TW": ""
       }
     },
+    {
+      "ID": "ControllerSettingsLedColorRainbow",
+      "Translations": {
+        "ar_SA": "",
+        "de_DE": "",
+        "el_GR": "",
+        "en_US": "Rainbow",
+        "es_ES": "",
+        "fr_FR": "",
+        "he_IL": "",
+        "it_IT": "",
+        "ja_JP": "",
+        "ko_KR": "",
+        "no_NO": "",
+        "pl_PL": "",
+        "pt_BR": "",
+        "ru_RU": "",
+        "sv_SE": "",
+        "th_TH": "",
+        "tr_TR": "",
+        "uk_UA": "",
+        "zh_CN": "",
+        "zh_TW": ""
+      }
+    },
     {
       "ID": "ControllerSettingsSave",
       "Translations": {
@@ -23023,4 +23048,4 @@
       }
     }
   ]
-}
+}

src/Ryujinx/UI/Models/Input/GamepadInputConfig.cs

@@ -388,42 +388,6 @@ namespace Ryujinx.Ava.UI.Models.Input
             }
         }
 
-        private bool _enableLedChanging;
-
-        public bool EnableLedChanging
-        {
-            get => _enableLedChanging;
-            set
-            {
-                _enableLedChanging = value;
-                OnPropertyChanged();
-            }
-        }
-        
-        private bool _turnOffLed;
-        
-        public bool TurnOffLed
-        {
-            get => _turnOffLed;
-            set
-            {
-                _turnOffLed = value;
-                OnPropertyChanged();
-            }
-        }
-        
-        private Color _ledColor;
-
-        public Color LedColor
-        {
-            get => _ledColor;
-            set
-            {
-                _ledColor = value;
-                OnPropertyChanged();
-            }
-        }
-
         private bool _enableMotion;
         public bool EnableMotion
         {
@@ -445,6 +409,58 @@ namespace Ryujinx.Ava.UI.Models.Input
                 OnPropertyChanged();
             }
         }
+        
+        private bool _enableLedChanging;
+
+        public bool EnableLedChanging
+        {
+            get => _enableLedChanging;
+            set
+            {
+                _enableLedChanging = value;
+                OnPropertyChanged();
+            }
+        }
+        
+        public bool ShowLedColorPicker => !TurnOffLed && !UseRainbowLed;
+        
+        private bool _turnOffLed;
+        
+        public bool TurnOffLed
+        {
+            get => _turnOffLed;
+            set
+            {
+                _turnOffLed = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(ShowLedColorPicker));
+            }
+        }
+        
+        private bool _useRainbowLed;
+        
+        public bool UseRainbowLed
+        {
+            get => _useRainbowLed;
+            set
+            {
+                _useRainbowLed = value;
+                OnPropertyChanged();
+                OnPropertyChanged(nameof(ShowLedColorPicker));
+            }
+        }
+        
+        private Color _ledColor;
+
+        public Color LedColor
+        {
+            get => _ledColor;
+            set
+            {
+                _ledColor = value;
+                OnPropertyChanged();
+            }
+        }
 
         public GamepadInputConfig(InputConfig config)
         {
@@ -525,6 +541,7 @@ namespace Ryujinx.Ava.UI.Models.Input
                 {
                     EnableLedChanging = controllerInput.Led.EnableLed;
                     TurnOffLed = controllerInput.Led.TurnOffLed;
+                    UseRainbowLed = controllerInput.Led.UseRainbow;
                     uint rawColor = controllerInput.Led.LedColor;
                     byte alpha = (byte)(rawColor >> 24);
                     byte red = (byte)(rawColor >> 16);
@@ -593,6 +610,7 @@ namespace Ryujinx.Ava.UI.Models.Input
                 {
                     EnableLed = EnableLedChanging,
                     TurnOffLed = this.TurnOffLed,
+                    UseRainbow = UseRainbowLed,
                     LedColor = LedColor.ToUInt32()
                 },
                 Version = InputConfig.CurrentVersion,

src/Ryujinx/UI/Views/Input/ControllerInputView.axaml

@@ -495,19 +495,20 @@
                         Margin="0,-1,0,0">
                         <Grid IsVisible="{Binding ParentModel.HasLed}">
                             <Grid.ColumnDefinitions>
+                                <ColumnDefinition Width="Auto" />
                                 <ColumnDefinition Width="*" />
                                 <ColumnDefinition Width="*" />
                                 <ColumnDefinition Width="Auto" />
                             </Grid.ColumnDefinitions>
                             <CheckBox
-                                Margin="10"
+                                Margin="10, 10, 5, 10"
                                 MinWidth="0"
                                 Grid.Column="0"
                                 IsChecked="{Binding Config.EnableLedChanging, Mode=TwoWay}">
                                 <TextBlock Text="{ext:Locale ControllerSettingsLedColor}" />
                             </CheckBox>
                             <CheckBox
-                                Margin="10"
+                                Margin="5, 10, 5, 10"
                                 MinWidth="0"
                                 Grid.Column="1"
                                 IsVisible="{Binding ParentModel.CanClearLed}"
@@ -515,10 +516,18 @@
                                 Command="{Binding LedDisabledChanged}">
                                 <TextBlock Text="{ext:Locale ControllerSettingsLedColorDisable}" />
                             </CheckBox>
-                            <ui:ColorPickerButton 
+                            <CheckBox
+                                Margin="5, 10 5,10"
+                                MinWidth="0"
                                 Grid.Column="2"
                                 IsEnabled="{Binding !Config.TurnOffLed}"
-                                Margin="10"
+                                IsChecked="{Binding Config.UseRainbowLed, Mode=TwoWay}">
+                                <TextBlock Text="Rainbow" />
+                            </CheckBox>
+                            <ui:ColorPickerButton 
+                                Grid.Column="3"
+                                IsEnabled="{Binding Config.ShowLedColorPicker}"
+                                Margin="5, 10, 10, 10"
                                 IsMoreButtonVisible="False"
                                 UseColorPalette="False"
                                 UseColorTriangle="False"

src/Ryujinx/Utilities/Configuration/ConfigurationState.Migration.cs

@@ -423,6 +423,7 @@ namespace Ryujinx.Ava.Utilities.Configuration
                         {
                             EnableLed = false,
                             TurnOffLed = false,
+                            UseRainbow = false,
                             LedColor = new Color(255, 5, 1, 253).ToUInt32()
                         };
                     }