mirror of
https://github.com/GreemDev/Ryujinx.git
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57d3296ba4
* infra: Migrate to .NET 6 * Rollback version naming change * Workaround .NET 6 ZipArchive API issues * ci: Switch to VS 2022 for AppVeyor CI is now ready for .NET 6 * Suppress WebClient warning in DoUpdateWithMultipleThreads * Attempt to workaround System.Drawing.Common changes on 6.0.0 * Change keyboard rendering from System.Drawing to ImageSharp * Make the software keyboard renderer multithreaded * Bump ImageSharp version to 1.0.4 to fix a bug in Image.Load * Add fallback fonts to the keyboard renderer * Fix warnings * Address caian's comment * Clean up linux workaround as it's uneeded now * Update readme Co-authored-by: Caian Benedicto <caianbene@gmail.com>
164 lines
6.6 KiB
C#
164 lines
6.6 KiB
C#
using Ryujinx.HLE.Ui;
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using Ryujinx.Memory;
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using System;
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using System.Threading;
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namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
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{
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/// <summary>
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/// Class that manages the renderer base class and its state in a multithreaded context.
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/// </summary>
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internal class SoftwareKeyboardRenderer : IDisposable
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{
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private const int TextBoxBlinkSleepMilliseconds = 100;
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private const int RendererWaitTimeoutMilliseconds = 100;
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private readonly object _stateLock = new object();
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private SoftwareKeyboardUiState _state = new SoftwareKeyboardUiState();
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private SoftwareKeyboardRendererBase _renderer;
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private TimedAction _textBoxBlinkTimedAction = new TimedAction();
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private TimedAction _renderAction = new TimedAction();
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public SoftwareKeyboardRenderer(IHostUiTheme uiTheme)
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{
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_renderer = new SoftwareKeyboardRendererBase(uiTheme);
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StartTextBoxBlinker(_textBoxBlinkTimedAction, _state, _stateLock);
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StartRenderer(_renderAction, _renderer, _state, _stateLock);
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}
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private static void StartTextBoxBlinker(TimedAction timedAction, SoftwareKeyboardUiState state, object stateLock)
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{
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timedAction.Reset(() =>
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{
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lock (stateLock)
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{
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// The blinker is on half of the time and events such as input
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// changes can reset the blinker.
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state.TextBoxBlinkCounter = (state.TextBoxBlinkCounter + 1) % (2 * SoftwareKeyboardRendererBase.TextBoxBlinkThreshold);
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// Tell the render thread there is something new to render.
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Monitor.PulseAll(stateLock);
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}
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}, TextBoxBlinkSleepMilliseconds);
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}
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private static void StartRenderer(TimedAction timedAction, SoftwareKeyboardRendererBase renderer, SoftwareKeyboardUiState state, object stateLock)
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{
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SoftwareKeyboardUiState internalState = new SoftwareKeyboardUiState();
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bool canCreateSurface = false;
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bool needsUpdate = true;
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timedAction.Reset(() =>
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{
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lock (stateLock)
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{
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if (!Monitor.Wait(stateLock, RendererWaitTimeoutMilliseconds))
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{
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return;
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}
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needsUpdate = UpdateStateField(ref state.InputText, ref internalState.InputText);
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needsUpdate |= UpdateStateField(ref state.CursorBegin, ref internalState.CursorBegin);
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needsUpdate |= UpdateStateField(ref state.CursorEnd, ref internalState.CursorEnd);
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needsUpdate |= UpdateStateField(ref state.AcceptPressed, ref internalState.AcceptPressed);
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needsUpdate |= UpdateStateField(ref state.CancelPressed, ref internalState.CancelPressed);
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needsUpdate |= UpdateStateField(ref state.OverwriteMode, ref internalState.OverwriteMode);
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needsUpdate |= UpdateStateField(ref state.TypingEnabled, ref internalState.TypingEnabled);
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needsUpdate |= UpdateStateField(ref state.ControllerEnabled, ref internalState.ControllerEnabled);
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needsUpdate |= UpdateStateField(ref state.TextBoxBlinkCounter, ref internalState.TextBoxBlinkCounter);
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canCreateSurface = state.SurfaceInfo != null && internalState.SurfaceInfo == null;
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if (canCreateSurface)
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{
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internalState.SurfaceInfo = state.SurfaceInfo;
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}
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}
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if (canCreateSurface)
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{
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renderer.CreateSurface(internalState.SurfaceInfo);
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}
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if (needsUpdate)
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{
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renderer.DrawMutableElements(internalState);
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renderer.CopyImageToBuffer();
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needsUpdate = false;
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}
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});
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}
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private static bool UpdateStateField<T>(ref T source, ref T destination) where T : IEquatable<T>
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{
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if (!source.Equals(destination))
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{
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destination = source;
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return true;
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}
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return false;
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}
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#pragma warning disable CS8632
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public void UpdateTextState(string? inputText, int? cursorBegin, int? cursorEnd, bool? overwriteMode, bool? typingEnabled)
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#pragma warning restore CS8632
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{
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lock (_stateLock)
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{
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// Update the parameters that were provided.
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_state.InputText = inputText != null ? inputText : _state.InputText;
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_state.CursorBegin = cursorBegin.GetValueOrDefault(_state.CursorBegin);
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_state.CursorEnd = cursorEnd.GetValueOrDefault(_state.CursorEnd);
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_state.OverwriteMode = overwriteMode.GetValueOrDefault(_state.OverwriteMode);
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_state.TypingEnabled = typingEnabled.GetValueOrDefault(_state.TypingEnabled);
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// Reset the cursor blink.
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_state.TextBoxBlinkCounter = 0;
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// Tell the render thread there is something new to render.
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Monitor.PulseAll(_stateLock);
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}
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}
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public void UpdateCommandState(bool? acceptPressed, bool? cancelPressed, bool? controllerEnabled)
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{
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lock (_stateLock)
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{
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// Update the parameters that were provided.
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_state.AcceptPressed = acceptPressed.GetValueOrDefault(_state.AcceptPressed);
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_state.CancelPressed = cancelPressed.GetValueOrDefault(_state.CancelPressed);
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_state.ControllerEnabled = controllerEnabled.GetValueOrDefault(_state.ControllerEnabled);
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// Tell the render thread there is something new to render.
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Monitor.PulseAll(_stateLock);
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}
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}
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public void SetSurfaceInfo(RenderingSurfaceInfo surfaceInfo)
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{
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lock (_stateLock)
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{
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_state.SurfaceInfo = surfaceInfo;
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// Tell the render thread there is something new to render.
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Monitor.PulseAll(_stateLock);
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}
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}
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internal bool DrawTo(IVirtualMemoryManager destination, ulong position)
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{
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return _renderer.WriteBufferToMemory(destination, position);
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}
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public void Dispose()
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{
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_textBoxBlinkTimedAction.RequestCancel();
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_renderAction.RequestCancel();
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}
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}
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}
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