On Tue, 24 Sep 2013 13:09:46 +0200 Christian Steinle <christian.stei...@unicon-software.com> wrote:
> Hi Pierre, > > as I understand correct, the SetDesktopSize functionality is located > between the remote and the local framebuffer content. This connection I > have not touched, because this is not possible in my opinion due to > direct RW framebuffer access for partial rectangular framebuffer updates > and thus damage regions. So I have simply implemented a scaling factor > for drawing the local framebuffer into the scaled viewport with respect > to the scaled damage regions. So the implementation considers just three > different points: > > 1) Get the viewport size independent of the framebuffer size [EASY] > This is the difficult part. :) If you resize the viewport right now, the client will send a SetDesktopSize to make the server end track the client's resolution. There needs to be a sensible user interface for these two conflicting methods of resolving a different local and remote size. > 3) Implement the scaled drawing: (Win32: StretchBlt(...) instead of > BitBlt(...) [EASY] / X11: Use nearestNeighbour algorithm and separate > rectangular XImage for update region [EASY and FAST but bad quality] / > OSX: [NOT DONE]) Might want to consider using OpenGL for scaling. Or at least XRender on X11. > So I will try to get some patches on that topic only in the next future > and send it to you. Maybe you can have a look at it to implement an > improved version into the repository code? Sure. But the crucial issue is the first one IMO; how to present this in a sensible manner to the user. Rgds -- Pierre Ossman Software Development Cendio AB http://cendio.com Teknikringen 8 http://twitter.com/ThinLinc 583 30 Linköping http://facebook.com/ThinLinc Phone: +46-13-214600 http://plus.google.com/112509906846170010689 A: Because it messes up the order in which people normally read text. Q: Why is top-posting such a bad thing?
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