private void NegotiateDesktop()
{
this.logger?.Log(LogLevel.Info, () => "Negotiating desktop settings");
byte shareDesktopSetting = this.c.ReceiveByte();
bool shareDesktop = shareDesktopSetting != 0;
var e = new CreatingDesktopEventArgs(shareDesktop);
this.OnCreatingDesktop(e);
var fbSource = this.fbSource;
this.Framebuffer = fbSource != null?fbSource.Capture() : null;
VncStream.Require(
this.Framebuffer != null,
"No framebuffer. Make sure you've called SetFramebufferSource. It can be set to a VncFramebuffer.",
VncFailureReason.SanityCheckFailed);
this.clientPixelFormat = this.Framebuffer.PixelFormat;
this.clientWidth = this.Framebuffer.Width;
this.clientHeight = this.Framebuffer.Height;
this.fbuAutoCache = null;
this.c.SendUInt16BE((ushort)this.Framebuffer.Width);
this.c.SendUInt16BE((ushort)this.Framebuffer.Height);
var pixelFormat = new byte[VncPixelFormat.Size];
this.Framebuffer.PixelFormat.Encode(pixelFormat, 0);
this.c.Send(pixelFormat);
this.c.SendString(this.Framebuffer.Name, true);
this.logger?.Log(LogLevel.Info, () => $"The desktop {this.Framebuffer.Name} has initialized with pixel format {this.clientPixelFormat}; the screen size is {this.clientWidth}x{this.clientHeight}");
}
internal bool FramebufferSendChanges()
{
var e = new FramebufferUpdatingEventArgs();
lock (this.FramebufferUpdateRequestLock)
{
if (this.FramebufferUpdateRequest != null)
{
var fbSource = this.fbSource;
if (fbSource != null)
{
try
{
var newFramebuffer = fbSource.Capture();
if (newFramebuffer != null && newFramebuffer != this.Framebuffer)
{
this.Framebuffer = newFramebuffer;
}
}
catch (Exception exc)
{
this.logger?.Log(LogLevel.Error, () => $"Capturing the framebuffer source failed: {exc}.");
}
}
this.OnFramebufferCapturing();
this.OnFramebufferUpdating(e);
if (!e.Handled)
{
if (this.fbuAutoCache == null || this.fbuAutoCache.Framebuffer != this.Framebuffer)
{
this.fbuAutoCache = this.CreateFramebufferCache(this.Framebuffer, this.logger);
}
e.Handled = true;
e.SentChanges = this.fbuAutoCache.RespondToUpdateRequest(this);
}
}
}
return(e.SentChanges);
}
private bool FramebufferSendChanges()
{
var e = new FramebufferUpdatingEventArgs();
lock (this.FramebufferUpdateRequestLock)
{
if (this.FramebufferUpdateRequest != null)
{
var fbSource = this.fbSource;
if (fbSource != null)
{
var newFramebuffer = fbSource.Capture();
if (newFramebuffer != null && newFramebuffer != this.Framebuffer)
{
this.Framebuffer = newFramebuffer;
}
}
this.OnFramebufferCapturing();
this.OnFramebufferUpdating(e);
if (!e.Handled)
{
if (this.fbuAutoCache == null || this.fbuAutoCache.Framebuffer != this.Framebuffer)
{
this.fbuAutoCache = this.CreateFramebufferCache(this.Framebuffer, this.logger);
}
e.Handled = true;
e.SentChanges = this.fbuAutoCache.RespondToUpdateRequest(this);
}
}
}
return(e.SentChanges);
}
internal bool FramebufferSendChanges()
{
var e = new FramebufferUpdatingEventArgs();
lock (this.FramebufferUpdateRequestLock)
{
if (this.FramebufferUpdateRequest == null)
{
var incremental = false;
if (regionCurr == -1)
{
regionCurr = 0;
incremental = true;
}
;
var width = (Framebuffer.Width / regionSize);
var height = Framebuffer.Height;
var x = ((regionCurr % regionSize) * width);
regionCurr++;
if (regionCurr >= regionSize)
{
regionCurr = 0;
}
this.FramebufferUpdateRequest = new FramebufferUpdateRequest(
incremental, new VncRectangle(x, 0, width, height));
}
if (this.FramebufferUpdateRequest != null)
{
var fbSource = this.fbSource;
if (fbSource != null)
{
//try
//{
var newFramebuffer = fbSource.Capture();
if (newFramebuffer != null && newFramebuffer != this.Framebuffer)
{
this.Framebuffer = newFramebuffer;
}
//}
//catch (Exception exc)
//{
// this.logger?.Log(LogLevel.Error, () => $"Capturing the framebuffer source failed: {exc}.");
//}
}
this.OnFramebufferCapturing();
this.OnFramebufferUpdating(e);
if (!e.Handled)
{
if (this.fbuAutoCache == null || this.fbuAutoCache.Framebuffer != this.Framebuffer)
{
this.fbuAutoCache = this.CreateFramebufferCache(this.Framebuffer, this.logger);
}
e.Handled = true;
e.SentChanges = this.fbuAutoCache.RespondToUpdateRequest(this);
}
}
}
return(e.SentChanges);
}
