[Spice-devel] spice-gtk on MAC OSX

[Mario Lombardo]

Marc,

thank you for your message.

Cairo-SDL can be realized in two ways:

// Integrate SDL into cairo
http://www.cairographics.org/SDL/

// Use the integration (even if this is not up to date - this may help 
me to understand)
http://cgit.freedesktop.org/~joonas/cairosdl/tree/README

Regarding the canvas I did not find any up-to-date implementation of 
Quarz in C. We will need to use some wrappers in Obj-C exporting the 
relevant funtions. I would try to make such an implementation, once I 
understood how this works. But I did not understand why there are so 
many more funtions implemented in sw_canvas.c compared to gdi_canvas.c. 
Is there not the need to implement them all at present? If I want to 
start with a kind of "quarz_canvas.c" - what would be the minumum set of 
functions?

Kind reagards,
Mario


Am 07.10.2013 13:12, schrieb Marc-André Lureau:
> Hi
> 
> ----- Original Message -----
>> Hi,
>> 
>> I just compiled the spice-gtk client (spicy) on OSX
>> (http://www.spice-space.org/page/OSX_Client/Build).
>> 
>> I am able to connect to the spice server using this client but it is
>> more slow than any VNC client I know.
>> 
>> 
>> I looked into the code and found two different places where this 
>> client
>> seems to be different than the x11 or GDI versions:
>> 
>> 1.) It uses sw_canvas.c
>> 2.) It uses spice-widget-cairo.c
>> 
>> Is it possible that the slow rendering results in the execution time 
>> one
>> of those two files? Which investigation would make more sense: Would 
>> it
>> be better to provide a SDL cairo version or should it accelerate the
> 
> What is "a SDL cairo version"?
> 
>> client when there is a canvas option optimized for OSX (quarz I 
>> guess)?
> 
> Gtk+ uses Cairo for drawing. If it's slow on OSX, it can probably be
> optimized by using the right drawing API.
> 
>> Is it possible to test the gl canvas on OSX? I didn´t found anything
>> about the gl implementation in the configure script.
> 
> Spice-gtk doesn't support GL canvas yet. The GL canvas is more limited
> that the SW canvas, and it is generally much slower for today
> computers.