[Spice-devel] improving spice-html5 performance

[Vincent Desprez]

Really sorry to go back to it but I simply could not manage to find the
answer myself. I explored the code of the client, server, even pixman… but
I really couldn’t find what those mask flags are used for. Any tip?

Vincent


On Wed, Mar 6, 2013 at 2:48 PM, Jeremy White <jwhite at codeweavers.com> wrote:

> On 03/05/2013 09:58 AM, Alon Levy wrote:
> >>
> >>
> >> Hi,
> >>
> >> I am currrently trying to correct the glitches when using Win7 with
> >> qxl driver. Amoung the warning messages I find these ones: "FIXME:
> >> DrawCopy we don't handle mask flag: xxx" and "FIXME: DrawCopy
> >> unhandled image flags: xxx". My guess is that these errors are
> >> responsible for the glitches, however I don't clearly understand
> >> what these flags are used for. Could you please tell me more about
> >> it, and maybe where it is handled in the thinclient?
> >
> > Sorry for the not very helpful idea, maybe obvious, but you can compare
> to spice-gtk (http://cgit.freedesktop.org/spice/spice-gtk) which probably
> punts to spice-common (http://cgit.freedesktop.org/spice/spice-common)
> which punts to pixman (http://cgit.freedesktop.org/pixman/).
>
> That is exactly the procedure I would follow when implementing draw
> features in the spice-html5 client.  There isn't really good
> documentation for the nitty gritty details of the spice protocol.
>
> Thus, I found myself having to dive in to the gtk code and instrument it
> so I could see the data being passed, and examine it to understand what
> the flags do.  The gtk client code isn't too bad after you get used to
> it.  (Notice I don't mention the server code.  That stuff is terrifying
> <grin>).
>
> Cheers,
>
> Jeremy
>
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