hello.. I've basic doubt ..
If a rectangle(either rfb rect or sub rect) of data is already present in the frame buffer,
Will the VNC/Tight VNC encode the entire rect or just gives the X,Y locations in prev. frame buffer..
When you Open a Word Text document, and if you Scroll down once only few(1 or 2) new lines will be appeared in bottom of the page..
and remaining entire lines of text are present in the previous frame before scroll down.
So my doubt is whether VNC will encode the entire modified region irrespective of the data moving within the screen
only new content alone encoded?
Similarly in the case of video frames, most of the objects will be moving within the screen boundaries..
So here if the 'useCopyRect' is enabled, What difference it makes compared to disablng it?
Can anybody explain this..
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From: Constantin Kaplinsky <const@ti...> - 2007-01-08 04:50:43
>>>>> umender koosam wrote:
> hello.. I've basic doubt .. If a rectangle(either rfb rect or sub
> rect) of data is already present in the frame buffer, Will the
> VNC/Tight VNC encode the entire rect or just gives the X,Y locations
> in prev. frame buffer..
Yes, VNC tries to use CopyRect for such rectangles. However, it's not
always easy to detect that some new pixels can be copied from existing
pixels of the framebuffer (pixel comparisons would be too inefficient).
Thus, CopyRect is not used in all the cases when it potentially could be
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