private void HandleFramebufferUpdateRequest()
{
var incremental = this.c.ReceiveByte() != 0;
var region = this.c.ReceiveRectangle();
if (!incremental && this.ClientEncodings.Contains(VncEncoding.ExtendedDesktopSize) && this.fbSource.SupportsResizing)
{
List <Rectangle> rectangles = new List <Rectangle>();
rectangles.Add(
this.GetExtendedDesktopSizeRectangle(
ExtendedDesktopSizeReason.External,
ExtendedDesktopSizeStatus.Success));
this.SendRectangles(rectangles);
}
lock (this.FramebufferUpdateRequestLock)
{
this.logger?.LogDebug($"Received a FramebufferUpdateRequest command for {region}");
region = VncRectangle.Intersect(region, new VncRectangle(0, 0, this.Framebuffer.Width, this.Framebuffer.Height));
if (region.IsEmpty)
{
return;
}
this.FramebufferUpdateRequest = new FramebufferUpdateRequest(incremental, region);
this.FramebufferChanged();
}
}
/// <inheritdoc/>
public void FramebufferManualInvalidate(VncRectangle region)
{
var fb = this.Framebuffer;
var cpf = this.clientPixelFormat;
region = VncRectangle.Intersect(region, new VncRectangle(0, 0, this.clientWidth, this.clientHeight));
if (region.IsEmpty)
{
return;
}
int x = region.X, y = region.Y, w = region.Width, h = region.Height, bpp = cpf.BytesPerPixel;
var contents = new byte[w * h * bpp];
VncPixelFormat.Copy(
fb.GetBuffer(),
fb.Width,
fb.Stride,
fb.PixelFormat,
region,
contents,
w,
w * bpp,
cpf);
this.AddRegion(region, VncEncoding.Raw, contents);
}
/// <inheritdoc/>
public void FramebufferManualInvalidate(VncRectangle region)
{
var fb = this.Framebuffer;
var cpf = this.clientPixelFormat;
region = VncRectangle.Intersect(region, new VncRectangle(0, 0, this.clientWidth, this.clientHeight));
if (region.IsEmpty)
{
return;
}
int x = region.X, y = region.Y, w = region.Width, h = region.Height, bpp = cpf.BytesPerPixel;
var contents = new byte[w * h * bpp];
VncPixelFormat.Copy(
fb.GetBuffer(),
fb.Width,
fb.Stride,
fb.PixelFormat,
region,
contents,
w,
w * bpp,
cpf);
#if DEFLATESTREAM_FLUSH_WORKS
if (_clientEncoding.Contains(VncEncoding.Zlib))
{
_zlibMemoryStream.Position = 0;
_zlibMemoryStream.SetLength(0);
_zlibMemoryStream.Write(new byte[4], 0, 4);
if (_zlibDeflater == null)
{
_zlibMemoryStream.Write(new[] { (byte)120, (byte)218 }, 0, 2);
_zlibDeflater = new DeflateStream(_zlibMemoryStream, CompressionMode.Compress, false);
}
_zlibDeflater.Write(contents, 0, contents.Length);
_zlibDeflater.Flush();
contents = _zlibMemoryStream.ToArray();
VncUtility.EncodeUInt32BE(contents, 0, (uint)(contents.Length - 4));
AddRegion(region, VncEncoding.Zlib, contents);
}
else
#endif
{
this.AddRegion(region, VncEncoding.Raw, contents);
}
}
private void HandleFramebufferUpdateRequest()
{
var incremental = this.c.ReceiveByte() != 0;
var region = this.c.ReceiveRectangle();
lock (this.FramebufferUpdateRequestLock)
{
this.logger?.Log(LogLevel.Info, () => $"Received a FramebufferUpdateRequest command for {region}");
region = VncRectangle.Intersect(region, new VncRectangle(0, 0, this.Framebuffer.Width, this.Framebuffer.Height));
if (region.IsEmpty)
{
return;
}
this.FramebufferUpdateRequest = new FramebufferUpdateRequest(incremental, region);
this.FramebufferChanged();
}
}
/// <inheritdoc/>
public void FramebufferManualInvalidate(VncRectangle region)
{
var fb = this.Framebuffer;
var cpf = this.clientPixelFormat;
region = VncRectangle.Intersect(region, new VncRectangle(0, 0, this.clientWidth, this.clientHeight));
if (region.IsEmpty)
{
return;
}
int x = region.X, y = region.Y, w = region.Width, h = region.Height, bpp = cpf.BytesPerPixel;
var contents = new byte[w * h * bpp];
VncPixelFormat.Copy(
fb.GetBuffer(),
fb.Width,
fb.Stride,
fb.PixelFormat,
region,
contents,
w,
w * bpp,
cpf);
if (clientEncoding.Contains(VncEncoding.Zlib))
{
byte[] zlibContents = Compress(contents);
var lenArray = new byte[4];
VncUtility.EncodeUInt32BE(lenArray, 0, (uint)(zlibContents.Length));
var finArray = Combine(lenArray, zlibContents);
AddRegion(region, VncEncoding.Zlib, finArray);
}
else
{
this.AddRegion(region, VncEncoding.Raw, contents);
}
}