Re: A strawman proposal for X.org & XFree86.org

On Sunday 30 March 2003 19:35, Marco Bubke wrote:
|  Alan Coopersmith wrote:
|  > Vadim Plessky wrote:
|  >> On Sunday 30 March 2003 03:31, Alan Coopersmith wrote:
|  >>
|  >> Som epeople mentioned that we need to through away Xlib in favour of
|  >> Xr/Xc,
|  >
|  > I've not seen that and I from what I've seen Xr/Xc aren't supposed to
|  > be a
|  > complete replacement for Xlib - just a different rendering model.
|  > (There's
|  > much more to Xlib than just the drawing routines.)
|
|  But what are the advantages over OpenGL which I have anyway and which is
|  here and hardware accelerated now? Render/Xr/Xc it loos to me like a
|  subset of OpenGL. Is this a other sign of the NIH syndrom? The

AFAIK, Render extension is pretty much different from OpenGL.
I have cc'ed XSVg mailing list, may be Carl or other people familiar with 
Xr/Xc/RENDER internals can provide more detailed explanation.
It's also wrong to suggest that OpenGL is accelerated on all Desktops.
I have ATI Rage Mobility (based on Mach 64, 2 year old notebook), and OpenGL 
is not accelerated.
Besides, OpenGL doesn't address many apsects of typical Desktop (like: 
*static* rendering of anti-aliased text at small size)

|  differentation between  2D and 3D is IMHO not more nessesary. There is
|  also OpenGL ES for the embedded sector. I think it's the better way to
|  use OpenGL for drawing (plus a high level wrapper around it)  so there
|  don't must be written two drivers. In this way you could mix 2D and 3D
|  much more easily.

Apple started to use OpenGL for UI in latest version on MacOS X (10.2- Jaguar)
It's called somewhat Quartz Extreme.
We (several people interested in SVG and vector graphics) have discussed 
Quartz Extreme & Quartz some time ago, and common conclusion was that we need 
to get PS-like, PDF-like API out & working first.
Than we can extend it somehow to 3D.  
But getting SVG-based Window Decorations in TWM or Metacity is mor eimportant 
for *current user* than 3D OpenGL-based animated buttons which he/she can get 
in the future.
Let's move step-by-step.
Otherwise we would get some project like E - E17 was supposed to be released 
by year or so (before), but we don't have it even now.

|
|  Marco
|
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-- 
Best Regards,

Vadim Plessky
SVG Icons * BlueSphere Icons 0.3.0 released
http://svgicons.sourceforge.net