void displayTimer_Tick(object sender, EventArgs e)
{
if (bitmap == null)
{
bitmap = new Bitmap(DisplayCmd.Width, DisplayCmd.Height, PixelFormat.Format32bppRgb);
BackgroundImage = bitmap;
TestImage();
}
if (!CommandAvail())
{
return;
}
var bitmapData = bitmap.LockBits(new Rectangle(0, 0, DisplayCmd.Width, DisplayCmd.Height), ImageLockMode.WriteOnly, PixelFormat.Format32bppRgb);
var bitmapPtr = (uint *)bitmapData.Scan0;
while (CommandAvail())
{
bufferReadPos += DisplayCmd.Execute(buffer, bufferReadPos, bitmapPtr);
}
bitmap.UnlockBits(bitmapData);
Invalidate();
}
static bool CommandAvail()
{
int filled = bufferWritePos - bufferReadPos;
if (filled >= MaxCmdLength)
{
return(true);
}
lock (buffers)
{
if (buffers.Count > 0)
{
var newBuffer = buffers.Dequeue();
if (newBuffer.Length > buffer.Length - bufferWritePos)
{
Array.Copy(buffer, bufferReadPos, buffer, 0, filled);
bufferWritePos -= bufferReadPos;
bufferReadPos = 0;
}
Array.Copy(newBuffer, 0, buffer, bufferWritePos, newBuffer.Length);
bufferWritePos += newBuffer.Length;
return(CommandAvail());
}
}
return(filled >= DisplayCmd.CommandLength(buffer[bufferReadPos]));
}
