On 8/21/06, Dieter <[EMAIL PROTECTED]> wrote:
> > Most OS's today use eye candy to make up
> > for ease of use. Thats why they need 3d and smoke puffs on each button
> > click and other special effects.
> >
> > An easy to understand open accelerated graphics card will allow very
> > neat optimizations for a simple but very powerful easy to use gui.
> Ok about the shader. Still the 3D in OGA ? 3D effects in gui isn't just
> eye candy
This all seems very backwards.
Why does a "3D" window frame need to have special hardware? You create
a window and it sits there for minutes, hours, days. A button? How often
do you click a button? Let the CPU do that, and give hardware assist to
video, which has to decode the input and change the display 60 times a
second.
With XGL video is handled using OGL textures. It does color space
conversion and scaling the shader hardware. There is plenty of
performance, XGL can play four or five video streams simultaneously.
Video overlays are incompatible with a composited desktop since they
can't be composited.
--
Jon Smirl
[EMAIL PROTECTED]
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