private void ReadHexRect(Rectangle rect)
{
Color bgColor = App.Black;
UInt32 fgPixel = 0;
Rectangle tile = new Rectangle();
for (tile.Y = rect.Y; tile.Y < rect.Bottom; tile.Y += 16)
{
for (tile.X = rect.X; tile.X < rect.Right; tile.X += 16)
{
tile.Width = 16;
tile.Height = 16;
tile.Width = Math.Min(tile.Right, rect.Right) - tile.Left;
tile.Height = Math.Min(tile.Bottom, rect.Bottom) - tile.Top;
RfbHexSubEncoding encoding = (RfbHexSubEncoding)ReadByte();
if ((encoding & RfbHexSubEncoding.Raw) != 0)
{
ReadRawRect(tile);
if (opts.ViewOpts.ScrnUpdAlgo == ScrnUpdAlgo.Asap)
{
view.InvalidateRect(tile);
}
continue;
}
byte[] data;
if ((encoding & RfbHexSubEncoding.BgSpec) != 0)
{
data = ReadBytes(bytesPp);
bgColor = GetColorFromData(data, 0);
}
if ((encoding & RfbHexSubEncoding.FgSpec) != 0)
{
data = ReadBytes(bytesPp);
fgPixel = RfbProtoUtil.GetPixelFromData(data, 0, bytesPp);
}
byte numSubRects = 0;
if ((encoding & RfbHexSubEncoding.AnySubRects) != 0)
{
numSubRects = ReadByte();
}
bool subRectsColored = ((encoding & RfbHexSubEncoding.SubRectsColored) != 0);
int subRectSize = RfbSize.HexSubRect;
subRectSize += subRectsColored ? (int)bytesPp : 0;
RreSubRectMsg[] subRects = new RreSubRectMsg[numSubRects];
byte[] rectBytes = ReadBytes(subRectSize * numSubRects);
for (int i = 0; i < numSubRects; i++)
{
subRects[i] = new HexSubRectMsg(rectBytes, (UInt32)(i * subRectSize), bytesPp, subRectsColored, fgPixel);
}
FillRreRect(tile, bgColor, subRects);
if (opts.ViewOpts.ScrnUpdAlgo == ScrnUpdAlgo.Asap)
{
view.InvalidateRect(tile);
}
}
}
}
private Color GetColorFromData(byte[] data, UInt32 offset)
{
return(GetColorFromPixel(RfbProtoUtil.GetPixelFromData(data, offset, bytesPp)));
}
