Add support for inline software keyboard (#1868)

* Add background mode configuration to SoftwareKeyboardApplet

* Add placeholder text generator for Software Keyboard in background mode

* Add stub for GetIndirectLayerImageMap

* Fix default state of DecidedCancel response

* Add GUI text input to Software Keyboard in background mode

* Fix graphical glitch when Inline Software Keyboard appears

* Improve readability of InlineResponses class

* Improve code styling and fix compiler warnings

* Replace ServiceDisplay log class by ServiceVi

* Replace static readonly by const

* Add proper finalization to the keyboard applet in inline mode

* Rename constants to start with uppercase

* Fix inline keyboard not working with some games

* Improve code readability

* Fix code styling

1 files changed, 19 insertions, 0 deletions

diff --git a/Ryujinx.HLE/HOS/Services/Vi/RootService/IApplicationDisplayService.cs b/Ryujinx.HLE/HOS/Services/Vi/RootService/IApplicationDisplayService.cs
index a4b9f358..b521ae92 100644
--- a/Ryujinx.HLE/HOS/Services/Vi/RootService/IApplicationDisplayService.cs
+++ b/Ryujinx.HLE/HOS/Services/Vi/RootService/IApplicationDisplayService.cs
@@ -1,4 +1,5 @@
 using Ryujinx.Common;
+using Ryujinx.Common.Logging;
 using Ryujinx.Cpu;
 using Ryujinx.HLE.HOS.Ipc;
 using Ryujinx.HLE.HOS.Kernel.Common;
@@ -238,6 +239,24 @@ namespace Ryujinx.HLE.HOS.Services.Vi.RootService
             return null;
         }
 
+        [Command(2450)]
+        // GetIndirectLayerImageMap(s64 width, s64 height, u64 handle, nn::applet::AppletResourceUserId, pid) -> (s64, s64, buffer<bytes, 0x46>)
+        public ResultCode GetIndirectLayerImageMap(ServiceCtx context)
+        {
+            // The size of the layer buffer should be an aligned multiple of width * height
+            // because it was created using GetIndirectLayerImageRequiredMemoryInfo as a guide.
+
+            long layerBuffPosition = context.Request.ReceiveBuff[0].Position;
+            long layerBuffSize     = context.Request.ReceiveBuff[0].Size;
+
+            // Fill the layer with zeros.
+            context.Memory.Fill((ulong)layerBuffPosition, (ulong)layerBuffSize, 0x00);
+
+            Logger.Stub?.PrintStub(LogClass.ServiceVi);
+
+            return ResultCode.Success;
+        }
+
         [Command(2460)]
         // GetIndirectLayerImageRequiredMemoryInfo(u64 width, u64 height) -> (u64 size, u64 alignment)
         public ResultCode GetIndirectLayerImageRequiredMemoryInfo(ServiceCtx context)