Improve inline keyboard compatibility (#1959)

* Improve compatibility of the inline keyboard with some games

* Send an empty first text to avoid crashing some games

* Implement SetCustomizedDictionaries and fix SetCustomizeDic

* Expand Bg and Fg –abbreviations in the swkbd applet

* Fix variable names and add comments to software keyboard

Ryujinx.HLE/HOS/Applets/SoftwareKeyboard/SoftwareKeyboardCalc.cs

@@ -3,7 +3,7 @@
 namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 {
     /// <summary>
-    /// A structure that defines the configuration options of the software keyboard.
+    /// A structure with configuration options of the software keyboard when starting a new input request in inline mode.
     /// </summary>
     [StructLayout(LayoutKind.Sequential, Pack=1, CharSet = CharSet.Unicode)]
     struct SoftwareKeyboardCalc
@@ -12,28 +12,56 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
 
         public uint Unknown;
 
+        /// <summary>
+        /// The size of the Calc struct, as reported by the process communicating with the applet.
+        /// </summary>
         public ushort Size;
 
         public byte Unknown1;
         public byte Unknown2;
 
+        /// <summary>
+        /// Configuration flags. Their purpose is currently unknown.
+        /// </summary>
         public ulong Flags;
 
+        /// <summary>
+        /// The original parameters used when initializing the keyboard applet.
+        /// </summary>
         public SoftwareKeyboardInitialize Initialize;
 
+        /// <summary>
+        /// The audio volume used by the sound effects of the keyboard.
+        /// </summary>
         public float Volume;
 
+        /// <summary>
+        /// The initial position of the text cursor (caret) in the provided input text.
+        /// </summary>
         public int CursorPos;
 
+        /// <summary>
+        /// Appearance configurations for the on-screen keyboard.
+        /// </summary>
         public SoftwareKeyboardAppear Appear;
 
+        /// <summary>
+        /// The initial input text to be used by the software keyboard.
+        /// </summary>
         [MarshalAs(UnmanagedType.ByValTStr, SizeConst = InputTextLength + 1)]
         public string InputText;
 
-        public byte Utf8Mode;
+        /// <summary>
+        /// When set, the strings communicated by software keyboard will be encoded as UTF-8 instead of UTF-16.
+        /// </summary>
+        [MarshalAs(UnmanagedType.I1)]
+        public bool UseUtf8;
 
         public byte Unknown3;
 
+        /// <summary>
+        /// [5.0.0+] Enable the backspace key in the software keyboard.
+        /// </summary>
         [MarshalAs(UnmanagedType.I1)]
         public bool BackspaceEnabled;
 
@@ -41,32 +69,57 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         public byte Unknown5;
 
         [MarshalAs(UnmanagedType.I1)]
-        public byte KeytopAsFloating;
+        public bool KeytopAsFloating;
 
         [MarshalAs(UnmanagedType.I1)]
-        public byte FooterScalable;
+        public bool FooterScalable;
 
         [MarshalAs(UnmanagedType.I1)]
-        public byte AlphaEnabledInInputMode;
+        public bool AlphaEnabledInInputMode;
 
-        [MarshalAs(UnmanagedType.I1)]
         public byte InputModeFadeType;
 
+        /// <summary>
+        /// When set, the software keyboard ignores touch input.
+        /// </summary>
         [MarshalAs(UnmanagedType.I1)]
-        public byte TouchDisabled;
+        public bool TouchDisabled;
 
+        /// <summary>
+        /// When set, the software keyboard ignores hardware keyboard commands.
+        /// </summary>
         [MarshalAs(UnmanagedType.I1)]
-        public byte HardwareKeyboardDisabled;
+        public bool HardwareKeyboardDisabled;
 
         public uint Unknown6;
         public uint Unknown7;
 
+        /// <summary>
+        /// Default value is 1.0.
+        /// </summary>
         public float KeytopScale0;
+
+        /// <summary>
+        /// Default value is 1.0.
+        /// </summary>
         public float KeytopScale1;
+
         public float KeytopTranslate0;
         public float KeytopTranslate1;
+
+        /// <summary>
+        /// Default value is 1.0.
+        /// </summary>
         public float KeytopBgAlpha;
+
+        /// <summary>
+        /// Default value is 1.0.
+        /// </summary>
         public float FooterBgAlpha;
+
+        /// <summary>
+        /// Default value is 1.0.
+        /// </summary>
         public float BalloonScale;
 
         public float Unknown8;
@@ -74,9 +127,19 @@ namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
         public uint Unknown10;
         public uint Unknown11;
 
+        /// <summary>
+        /// [5.0.0+] Enable sound effect.
+        /// </summary>
         public byte SeGroup;
 
+        /// <summary>
+        /// [6.0.0+] Enables the Trigger field when Trigger is non-zero.
+        /// </summary>
         public byte TriggerFlag;
+
+        /// <summary>
+        /// [6.0.0+] Always set to zero.
+        /// </summary>
         public byte Trigger;
 
         public byte Padding;