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xen-devel
[Xen-devel] Re: Qemu vnc color depth
Anthony Liguori wrote:
We can use the existing space for gtk-vnc although VMware actually
already has an extension to support server initiated pixel format
changes. See http://wiki.multimedia.cx/index.php?title=VMNC
The extension is VMVi (display mode change). I would much rather just
implement that in QEMU and in gtk-vnc.
This would also count in my mind as finally fixing SetPixelFormat since
a client could rely on getting the DisplayModeChange message before the
server starts using the new pixel format.
I have given a look at WMVi: the message format is fine as it is
identical to the PIXEL_FORMAT part of the ServerInit message.
However I couldn't see the pseudo encoding number or any client side
implementation.
I think they used WMVi as part of their format to record AVI videos and
not as a VNC protocol extension.
We can use the message format they proposed, but we need also a proper
pseudo encoding number.
Then we'll send "DisplayModeChange" messages as 1 rectangle framebuffer
updates.
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