using Ryujinx.HLE.Ui;
using Ryujinx.Memory;
using System;
using System.Diagnostics;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Drawing.Imaging;
using System.Drawing.Text;
using System.IO;
using System.Reflection;
using System.Runtime.InteropServices;
using System.Threading;
namespace Ryujinx.HLE.HOS.Applets.SoftwareKeyboard
{
/// <summary>
/// Class that generates the graphics for the software keyboard applet during inline mode.
/// </summary>
internal class SoftwareKeyboardRenderer : IDisposable
{
const int TextBoxBlinkThreshold = 8;
const int TextBoxBlinkSleepMilliseconds = 100;
const int TextBoxBlinkJoinWaitMilliseconds = 1000;
const string MessageText = "Please use the keyboard to input text";
const string AcceptText = "Accept";
const string CancelText = "Cancel";
const string ControllerToggleText = "Toggle input";
private RenderingSurfaceInfo _surfaceInfo;
private Bitmap _surface = null;
private object _renderLock = new object();
private string _inputText = "";
private int _cursorStart = 0;
private int _cursorEnd = 0;
private bool _acceptPressed = false;
private bool _cancelPressed = false;
private bool _overwriteMode = false;
private bool _typingEnabled = true;
private bool _controllerEnabled = true;
private Image _ryujinxLogo = null;
private Image _padAcceptIcon = null;
private Image _padCancelIcon = null;
private Image _keyModeIcon = null;
private float _textBoxOutlineWidth;
private float _padPressedPenWidth;
private Brush _panelBrush;
private Brush _disabledBrush;
private Brush _textNormalBrush;
private Brush _textSelectedBrush;
private Brush _textOverCursorBrush;
private Brush _cursorBrush;
private Brush _selectionBoxBrush;
private Brush _keyCapBrush;
private Brush _keyProgressBrush;
private Pen _gridSeparatorPen;
private Pen _textBoxOutlinePen;
private Pen _cursorPen;
private Pen _selectionBoxPen;
private Pen _padPressedPen;
private int _inputTextFontSize;
private int _padButtonFontSize;
private Font _messageFont;
private Font _inputTextFont;
private Font _labelsTextFont;
private Font _padSymbolFont;
private Font _keyCapFont;
private float _inputTextCalibrationHeight;
private float _panelPositionY;
private RectangleF _panelRectangle;
private PointF _logoPosition;
private float _messagePositionY;
private TRef<int> _textBoxBlinkCounter = new TRef<int>(0);
private TimedAction _textBoxBlinkTimedAction = new TimedAction();
public SoftwareKeyboardRenderer(IHostUiTheme uiTheme)
{
_surfaceInfo = new RenderingSurfaceInfo(0, 0, 0, 0, 0);
string ryujinxLogoPath = "Ryujinx.Ui.Resources.Logo_Ryujinx.png";
int ryujinxLogoSize = 32;
_ryujinxLogo = LoadResource(Assembly.GetEntryAssembly(), ryujinxLogoPath, ryujinxLogoSize, ryujinxLogoSize);
string padAcceptIconPath = "Ryujinx.HLE.HOS.Applets.SoftwareKeyboard.Resources.Icon_BtnA.png";
string padCancelIconPath = "Ryujinx.HLE.HOS.Applets.SoftwareKeyboard.Resources.Icon_BtnB.png";
string keyModeIconPath = "Ryujinx.HLE.HOS.Applets.SoftwareKeyboard.Resources.Icon_KeyF6.png";
_padAcceptIcon = LoadResource(Assembly.GetExecutingAssembly(), padAcceptIconPath , 0, 0);
_padCancelIcon = LoadResource(Assembly.GetExecutingAssembly(), padCancelIconPath , 0, 0);
_keyModeIcon = LoadResource(Assembly.GetExecutingAssembly(), keyModeIconPath , 0, 0);
Color panelColor = ToColor(uiTheme.DefaultBackgroundColor, 255);
Color panelTransparentColor = ToColor(uiTheme.DefaultBackgroundColor, 150);
Color normalTextColor = ToColor(uiTheme.DefaultForegroundColor);
Color invertedTextColor = ToColor(uiTheme.DefaultForegroundColor, null, true);
Color selectedTextColor = ToColor(uiTheme.SelectionForegroundColor);
Color borderColor = ToColor(uiTheme.DefaultBorderColor);
Color selectionBackgroundColor = ToColor(uiTheme.SelectionBackgroundColor);
Color gridSeparatorColor = Color.FromArgb(180, 255, 255, 255);
float cursorWidth = 2;
_textBoxOutlineWidth = 2;
_padPressedPenWidth = 2;
_panelBrush = new SolidBrush(panelColor);
_disabledBrush = new SolidBrush(panelTransparentColor);
_textNormalBrush = new SolidBrush(normalTextColor);
_textSelectedBrush = new SolidBrush(selectedTextColor);
_textOverCursorBrush = new SolidBrush(invertedTextColor);
_cursorBrush = new SolidBrush(normalTextColor);
_selectionBoxBrush = new SolidBrush(selectionBackgroundColor);
_keyCapBrush = Brushes.White;
_keyProgressBrush = new SolidBrush(borderColor);
_gridSeparatorPen = new Pen(gridSeparatorColor, 2);
_textBoxOutlinePen = new Pen(borderColor, _textBoxOutlineWidth);
_cursorPen = new Pen(normalTextColor, cursorWidth);
_selectionBoxPen = new Pen(selectionBackgroundColor, cursorWidth);
_padPressedPen = new Pen(borderColor, _padPressedPenWidth);
_inputTextFontSize = 20;
_padButtonFontSize = 24;
string font = uiTheme.FontFamily;
_messageFont = new Font(font, 26, FontStyle.Regular, GraphicsUnit.Pixel);
_inputTextFont = new Font(font, _inputTextFontSize, FontStyle.Regular, GraphicsUnit.Pixel);
_labelsTextFont = new Font(font, 24, FontStyle.Regular, GraphicsUnit.Pixel);
_padSymbolFont = new Font(font, _padButtonFontSize, FontStyle.Regular, GraphicsUnit.Pixel);
_keyCapFont = new Font(font, 15, FontStyle.Regular, GraphicsUnit.Pixel);
// System.Drawing has serious problems measuring strings, so it requires a per-pixel calibration
// to ensure we are rendering text inside the proper region
_inputTextCalibrationHeight = CalibrateTextHeight(_inputTextFont);
StartTextBoxBlinker(_textBoxBlinkTimedAction, _textBoxBlinkCounter);
}
private static void StartTextBoxBlinker(TimedAction timedAction, TRef<int> blinkerCounter)
{
timedAction.Reset(() =>
{
// The blinker is on falf of the time and events such as input
// changes can reset the blinker.
var value = Volatile.Read(ref blinkerCounter.Value);
value = (value + 1) % (2 * TextBoxBlinkThreshold);
Volatile.Write(ref blinkerCounter.Value, value);
}, TextBoxBlinkSleepMilliseconds);
}
private Color ToColor(ThemeColor color, byte? overrideAlpha = null, bool flipRgb = false)
{
var a = (byte)(color.A * 255);
var r = (byte)(color.R * 255);
var g = (byte)(color.G * 255);
var b = (byte)(color.B * 255);
if (flipRgb)
{
r = (byte)(255 - r);
g = (byte)(255 - g);
b = (byte)(255 - b);
}
return Color.FromArgb(overrideAlpha.GetValueOrDefault(a), r, g, b);
}
private Image LoadResource(Assembly assembly, string resourcePath, int newWidth, int newHeight)
{
Stream resourceStream = assembly.GetManifestResourceStream(resourcePath);
Debug.Assert(resourceStream != null);
var originalImage = Image.FromStream(resourceStream);
if (newHeight == 0 || newWidth == 0)
{
return originalImage;
}
var newSize = new Rectangle(0, 0, newWidth, newHeight);
var newImage = new Bitmap(newWidth, newHeight);
using (var graphics = System.Drawing.Graphics.FromImage(newImage))
using (var wrapMode = new ImageAttributes())
{
graphics.InterpolationMode = InterpolationMode.HighQualityBicubic;
graphics.CompositingQuality = CompositingQuality.HighQuality;
graphics.CompositingMode = CompositingMode.SourceCopy;
graphics.PixelOffsetMode = PixelOffsetMode.HighQuality;
graphics.SmoothingMode = SmoothingMode.HighQuality;
wrapMode.SetWrapMode(WrapMode.TileFlipXY);
graphics.DrawImage(originalImage, newSize, 0, 0, originalImage.Width, originalImage.Height, GraphicsUnit.Pixel, wrapMode);
}
return newImage;
}
#pragma warning disable CS8632
public void UpdateTextState(string? inputText, int? cursorStart, int? cursorEnd, bool? overwriteMode, bool? typingEnabled)
#pragma warning restore CS8632
{
lock (_renderLock)
{
// Update the parameters that were provided.
_inputText = inputText != null ? inputText : _inputText;
_cursorStart = cursorStart.GetValueOrDefault(_cursorStart);
_cursorEnd = cursorEnd.GetValueOrDefault(_cursorEnd);
_overwriteMode = overwriteMode.GetValueOrDefault(_overwriteMode);
_typingEnabled = typingEnabled.GetValueOrDefault(_typingEnabled);
// Reset the cursor blink.
Volatile.Write(ref _textBoxBlinkCounter.Value, 0);
}
}
public void UpdateCommandState(bool? acceptPressed, bool? cancelPressed, bool? controllerEnabled)
{
lock (_renderLock)
{
// Update the parameters that were provided.
_acceptPressed = acceptPressed.GetValueOrDefault(_acceptPressed);
_cancelPressed = cancelPressed.GetValueOrDefault(_cancelPressed);
_controllerEnabled = controllerEnabled.GetValueOrDefault(_controllerEnabled);
}
}
private void Redraw()
{
if (_surface == null)
{
return;
}
using (var graphics = CreateGraphics())
{
var messageRectangle = MeasureString(graphics, MessageText, _messageFont);
float messagePositionX = (_panelRectangle.Width - messageRectangle.Width) / 2 - messageRectangle.X;
float messagePositionY = _messagePositionY - messageRectangle.Y;
PointF messagePosition = new PointF(messagePositionX, messagePositionY);
graphics.Clear(Color.Transparent);
graphics.TranslateTransform(0, _panelPositionY);
graphics.FillRectangle(_panelBrush, _panelRectangle);
graphics.DrawImage(_ryujinxLogo, _logoPosition);
DrawString(graphics, MessageText, _messageFont, _textNormalBrush, messagePosition);
if (!_typingEnabled)
{
// Just draw a semi-transparent rectangle on top to fade the component with the background.
// TODO (caian): This will not work if one decides to add make background semi-transparent as well.
graphics.FillRectangle(_disabledBrush, messagePositionX, messagePositionY, messageRectangle.Width, messageRectangle.Height);
}
DrawTextBox(graphics);
float halfWidth = _panelRectangle.Width / 2;
PointF acceptButtonPosition = new PointF(halfWidth - 180, 185);
PointF cancelButtonPosition = new PointF(halfWidth , 185);
PointF disableButtonPosition = new PointF(halfWidth + 180, 185);
DrawPadButton (graphics, acceptButtonPosition , _padAcceptIcon, AcceptText, _acceptPressed, _controllerEnabled);
DrawPadButton (graphics, cancelButtonPosition , _padCancelIcon, CancelText, _cancelPressed, _controllerEnabled);
DrawControllerToggle(graphics, disableButtonPosition, _controllerEnabled);
}
}
private void RecreateSurface()
{
Debug.Assert(_surfaceInfo.ColorFormat == Services.SurfaceFlinger.ColorFormat.A8B8G8R8);
// Use the whole area of the image to draw, even the alignment, otherwise it may shear the final
// image if the pitch is different.
uint totalWidth = _surfaceInfo.Pitch / 4;
uint totalHeight = _surfaceInfo.Size / _surfaceInfo.Pitch;
Debug.Assert(_surfaceInfo.Width <= totalWidth);
Debug.Assert(_surfaceInfo.Height <= totalHeight);
Debug.Assert(_surfaceInfo.Pitch * _surfaceInfo.Height <= _surfaceInfo.Size);
_surface = new Bitmap((int)totalWidth, (int)totalHeight, PixelFormat.Format32bppArgb);
}
private void RecomputeConstants()
{
float totalWidth = _surfaceInfo.Width;
float totalHeight = _surfaceInfo.Height;
float panelHeight = 240;
_panelPositionY = totalHeight - panelHeight;
_panelRectangle = new RectangleF(0, 0, totalWidth, panelHeight);
_messagePositionY = 60;
float logoPositionX = (totalWidth - _ryujinxLogo.Width) / 2;
float logoPositionY = 18;
_logoPosition = new PointF(logoPositionX, logoPositionY);
}
private StringFormat CreateStringFormat(string text)
{
StringFormat format = new StringFormat(StringFormat.GenericTypographic);
format.FormatFlags |= StringFormatFlags.MeasureTrailingSpaces;
format.SetMeasurableCharacterRanges(new CharacterRange[] { new CharacterRange(0, text.Length) });
return format;
}
private RectangleF MeasureString(System.Drawing.Graphics graphics, string text, System.Drawing.Font font)
{
bool isEmpty = false;
if (string.IsNullOrEmpty(text))
{
isEmpty = true;
text = " ";
}
var format = CreateStringFormat(text);
var rectangle = new RectangleF(0, 0, float.PositiveInfinity, float.PositiveInfinity);
var regions = graphics.MeasureCharacterRanges(text, font, rectangle, format);
Debug.Assert(regions.Length == 1);
rectangle = regions[0].GetBounds(graphics);
if (isEmpty)
{
rectangle.Width = 0;
}
else
{
rectangle.Width += 1.0f;
}
return rectangle;
}
private float CalibrateTextHeight(Font font)
{
// This is a pixel-wise calibration that tests the offset of a reference character because Windows text measurement
// is horrible when compared to other frameworks like Cairo and diverge across systems and fonts.
Debug.Assert(font.Unit == GraphicsUnit.Pixel);
var surfaceSize = (int)Math.Ceiling(2 * font.Size);
string calibrationText = "|";
using (var surface = new Bitmap(surfaceSize, surfaceSize, PixelFormat.Format32bppArgb))
using (var graphics = CreateGraphics(surface))
{
var measuredRectangle = MeasureString(graphics, calibrationText, font);
Debug.Assert(measuredRectangle.Right <= surfaceSize);
Debug.Assert(measuredRectangle.Bottom <= surfaceSize);
var textPosition = new PointF(0, 0);
graphics.Clear(Color.Transparent);
DrawString(graphics, calibrationText, font, Brushes.White, textPosition);
var lockRectangle = new Rectangle(0, 0, surface.Width, surface.Height);
var surfaceData = surface.LockBits(lockRectangle, ImageLockMode.ReadOnly, PixelFormat.Format32bppArgb);
var surfaceBytes = new byte[surfaceData.Stride * surfaceData.Height];
Marshal.Copy(surfaceData.Scan0, surfaceBytes, 0, surfaceBytes.Length);
Point topLeft = new Point();
Point bottomLeft = new Point();
bool foundTopLeft = false;
for (int y = 0; y < surfaceData.Height; y++)
{
for (int x = 0; x < surfaceData.Stride; x += 4)
{
int position = y * surfaceData.Stride + x;
if (surfaceBytes[position] != 0)
{
if (!foundTopLeft)
{
topLeft.X = x;
topLeft.Y = y;
foundTopLeft = true;
break;
}
else
{
bottomLeft.X = x;
bottomLeft.Y = y;
break;
}
}
}
}
return bottomLeft.Y - topLeft.Y;
}
}
private void DrawString(System.Drawing.Graphics graphics, string text, Font font, Brush brush, PointF point)
{
var format = CreateStringFormat(text);
graphics.DrawString(text, font, brush, point, format);
}
private System.Drawing.Graphics CreateGraphics()
{
return CreateGraphics(_surface);
}
private System.Drawing.Graphics CreateGraphics(Image surface)
{
var graphics = System.Drawing.Graphics.FromImage(surface);
graphics.TextRenderingHint = TextRenderingHint.ClearTypeGridFit;
graphics.InterpolationMode = InterpolationMode.NearestNeighbor;
graphics.CompositingQuality = CompositingQuality.HighSpeed;
graphics.CompositingMode = CompositingMode.SourceOver;
graphics.PixelOffsetMode = PixelOffsetMode.HighSpeed;
graphics.SmoothingMode = SmoothingMode.HighSpeed;
return graphics;
}
private void DrawTextBox(System.Drawing.Graphics graphics)
{
var inputTextRectangle = MeasureString(graphics, _inputText, _inputTextFont);
float boxWidth = (int)(Math.Max(300, inputTextRectangle.Width + inputTextRectangle.X + 8));
float boxHeight = 32;
float boxY = 110;
float boxX = (int)((_panelRectangle.Width - boxWidth) / 2);
graphics.DrawRectangle(_textBoxOutlinePen, boxX, boxY, boxWidth, boxHeight);
float inputTextX = (_panelRectangle.Width - inputTextRectangle.Width) / 2 - inputTextRectangle.X;
float inputTextY = boxY + boxHeight - inputTextRectangle.Bottom - 5;
var inputTextPosition = new PointF(inputTextX, inputTextY);
DrawString(graphics, _inputText, _inputTextFont, _textNormalBrush, inputTextPosition);
// Draw the cursor on top of the text and redraw the text with a different color if necessary.
Brush cursorTextBrush;
Brush cursorBrush;
Pen cursorPen;
float cursorPositionYBottom = inputTextY + inputTextRectangle.Bottom;
float cursorPositionYTop = cursorPositionYBottom - _inputTextCalibrationHeight - 2;
float cursorPositionXLeft;
float cursorPositionXRight;
bool cursorVisible = false;
if (_cursorStart != _cursorEnd)
{
cursorTextBrush = _textSelectedBrush;
cursorBrush = _selectionBoxBrush;
cursorPen = _selectionBoxPen;
string textUntilBegin = _inputText.Substring(0, _cursorStart);
string textUntilEnd = _inputText.Substring(0, _cursorEnd);
RectangleF selectionBeginRectangle = MeasureString(graphics, textUntilBegin, _inputTextFont);
RectangleF selectionEndRectangle = MeasureString(graphics, textUntilEnd , _inputTextFont);
cursorVisible = true;
cursorPositionXLeft = inputTextX + selectionBeginRectangle.Width + selectionBeginRectangle.X;
cursorPositionXRight = inputTextX + selectionEndRectangle.Width + selectionEndRectangle.X;
}
else
{
cursorTextBrush = _textOverCursorBrush;
cursorBrush = _cursorBrush;
cursorPen = _cursorPen;
if (Volatile.Read(ref _textBoxBlinkCounter.Value) < TextBoxBlinkThreshold)
{
// Show the blinking cursor.
int cursorStart = Math.Min(_inputText.Length, _cursorStart);
string textUntilCursor = _inputText.Substring(0, cursorStart);
RectangleF cursorTextRectangle = MeasureString(graphics, textUntilCursor, _inputTextFont);
cursorVisible = true;
cursorPositionXLeft = inputTextX + cursorTextRectangle.Width + cursorTextRectangle.X;
if (_overwriteMode)
{
// The blinking cursor is in overwrite mode so it takes the size of a character.
if (_cursorStart < _inputText.Length)
{
textUntilCursor = _inputText.Substring(0, cursorStart + 1);
cursorTextRectangle = MeasureString(graphics, textUntilCursor, _inputTextFont);
cursorPositionXRight = inputTextX + cursorTextRectangle.Width + cursorTextRectangle.X;
}
else
{
cursorPositionXRight = cursorPositionXLeft + _inputTextFontSize / 2;
}
}
else
{
// The blinking cursor is in insert mode so it is only a line.
cursorPositionXRight = cursorPositionXLeft;
}
}
else
{
cursorPositionXLeft = inputTextX;
cursorPositionXRight = inputTextX;
}
}
if (_typingEnabled && cursorVisible)
{
float cursorWidth = cursorPositionXRight - cursorPositionXLeft;
float cursorHeight = cursorPositionYBottom - cursorPositionYTop;
if (cursorWidth == 0)
{
graphics.DrawLine(cursorPen, cursorPositionXLeft, cursorPositionYTop, cursorPositionXLeft, cursorPositionYBottom);
}
else
{
graphics.DrawRectangle(cursorPen, cursorPositionXLeft, cursorPositionYTop, cursorWidth, cursorHeight);
graphics.FillRectangle(cursorBrush, cursorPositionXLeft, cursorPositionYTop, cursorWidth, cursorHeight);
var cursorRectangle = new RectangleF(cursorPositionXLeft, cursorPositionYTop, cursorWidth, cursorHeight);
var oldClip = graphics.Clip;
graphics.Clip = new Region(cursorRectangle);
DrawString(graphics, _inputText, _inputTextFont, cursorTextBrush, inputTextPosition);
graphics.Clip = oldClip;
}
}
else if (!_typingEnabled)
{
// Just draw a semi-transparent rectangle on top to fade the component with the background.
// TODO (caian): This will not work if one decides to add make background semi-transparent as well.
graphics.FillRectangle(_disabledBrush, boxX - _textBoxOutlineWidth, boxY - _textBoxOutlineWidth,
boxWidth + 2* _textBoxOutlineWidth, boxHeight + 2* _textBoxOutlineWidth);
}
}
private void DrawPadButton(System.Drawing.Graphics graphics, PointF point, Image icon, string label, bool pressed, bool enabled)
{
// Use relative positions so we can center the the entire drawing later.
float iconX = 0;
float iconY = 0;
float iconWidth = icon.Width;
float iconHeight = icon.Height;
var labelRectangle = MeasureString(graphics, label, _labelsTextFont);
float labelPositionX = iconWidth + 8 - labelRectangle.X;
float labelPositionY = (iconHeight - labelRectangle.Height) / 2 - labelRectangle.Y - 1;
float fullWidth = labelPositionX + labelRectangle.Width + labelRectangle.X;
float fullHeight = iconHeight;
// Convert all relative positions into absolute.
float originX = (int)(point.X - fullWidth / 2);
float originY = (int)(point.Y - fullHeight / 2);
iconX += originX;
iconY += originY;
var labelPosition = new PointF(labelPositionX + originX, labelPositionY + originY);
graphics.DrawImageUnscaled(icon, (int)iconX, (int)iconY);
DrawString(graphics, label, _labelsTextFont, _textNormalBrush, labelPosition);
GraphicsPath frame = new GraphicsPath();
frame.AddRectangle(new RectangleF(originX - 2 * _padPressedPenWidth, originY - 2 * _padPressedPenWidth,
fullWidth + 4 * _padPressedPenWidth, fullHeight + 4 * _padPressedPenWidth));
if (enabled)
{
if (pressed)
{
graphics.DrawPath(_padPressedPen, frame);
}
}
else
{
// Just draw a semi-transparent rectangle on top to fade the component with the background.
// TODO (caian): This will not work if one decides to add make background semi-transparent as well.
graphics.FillPath(_disabledBrush, frame);
}
}
private void DrawControllerToggle(System.Drawing.Graphics graphics, PointF point, bool enabled)
{
var labelRectangle = MeasureString(graphics, ControllerToggleText, _labelsTextFont);
// Use relative positions so we can center the the entire drawing later.
float keyWidth = _keyModeIcon.Width;
float keyHeight = _keyModeIcon.Height;
float labelPositionX = keyWidth + 8 - labelRectangle.X;
float labelPositionY = -labelRectangle.Y - 1;
float keyX = 0;
float keyY = (int)((labelPositionY + labelRectangle.Height - keyHeight) / 2);
float fullWidth = labelPositionX + labelRectangle.Width;
float fullHeight = Math.Max(labelPositionY + labelRectangle.Height, keyHeight);
// Convert all relative positions into absolute.
float originX = (int)(point.X - fullWidth / 2);
float originY = (int)(point.Y - fullHeight / 2);
keyX += originX;
keyY += originY;
var labelPosition = new PointF(labelPositionX + originX, labelPositionY + originY);
var overlayPosition = new Point((int)keyX, (int)keyY);
graphics.DrawImageUnscaled(_keyModeIcon, overlayPosition);
DrawString(graphics, ControllerToggleText, _labelsTextFont, _textNormalBrush, labelPosition);
}
private unsafe bool TryCopyTo(IVirtualMemoryManager destination, ulong position)
{
if (_surface == null)
{
return false;
}
Rectangle lockRectangle = new Rectangle(0, 0, _surface.Width, _surface.Height);
BitmapData surfaceData = _surface.LockBits(lockRectangle, ImageLockMode.ReadWrite, PixelFormat.Format32bppArgb);
Debug.Assert(surfaceData.Stride == _surfaceInfo.Pitch);
Debug.Assert(surfaceData.Stride * surfaceData.Height == _surfaceInfo.Size);
// Convert the pixel format used in System.Drawing to the one required by a Switch Surface.
int dataLength = surfaceData.Stride * surfaceData.Height;
byte* dataPointer = (byte*)surfaceData.Scan0;
byte* dataEnd = dataPointer + dataLength;
for (; dataPointer < dataEnd; dataPointer += 4)
{
*(uint*)dataPointer = (uint)(
(*(dataPointer + 0) << 16) |
(*(dataPointer + 1) << 8 ) |
(*(dataPointer + 2) << 0 ) |
(*(dataPointer + 3) << 24));
}
try
{
Span<byte> dataSpan = new Span<byte>((void*)surfaceData.Scan0, dataLength);
destination.Write(position, dataSpan);
}
finally
{
_surface.UnlockBits(surfaceData);
}
return true;
}
internal bool DrawTo(RenderingSurfaceInfo surfaceInfo, IVirtualMemoryManager destination, ulong position)
{
lock (_renderLock)
{
if (!_surfaceInfo.Equals(surfaceInfo))
{
_surfaceInfo = surfaceInfo;
RecreateSurface();
RecomputeConstants();
}
Redraw();
return TryCopyTo(destination, position);
}
}
public void Dispose()
{
_textBoxBlinkTimedAction.RequestCancel();
}
}
}