[Kwintv] Re: OpenGL view mode and a new threading solution

[Koos Vriezen]

On Tue, Jun 08, 2004 at 10:23:16PM +0200, Dirk Ziegelmeier wrote:
> On Tuesday 08 June 2004 19:17, Koos Vriezen wrote:
> > On Sat, Jun 05, 2004 at 05:02:29PM +0200, Koos Vriezen wrote:
> > Ok, found it. About 7% CPU usage in the original window size on a GeForce
> > FX 5200. It increases if I make the window bigger (btw, I could find the
> > option to resize to PAL..) It's about two times as much compared with XShm.
> > Only crash I saw so far was when changing the v4l driver option to GL (like
> > you told me).
> > If somebody knows I nice option for this (already have "RenderAccel" "On")
> I've managed to get it more stable (now that I know the problems of the ATI 
> driver, I can track down bugs easier and I have working versions to compare 
> with...). But my X server often freezes when I change the video plugins 
> (Linux is OK, but I need to reboot). I'll leave the GL mode in this state. It 
> doesn't seem to have much use, NVIDIA is slower (Koos, Andras), ATI is very 
> fast but unstable. So noone will use it...

Well, my 7% is not bad. It's only with bigger size, like fullscreen 1280x1024,
that it's too high IMO (30%). But I'm sure drivers will improve (esp. if we
gliz'ing our desktop :-)). Which reminds me running X in 24 bit mode ... hmm
with 16 bits it's around 12% in windowed and 17% in fullscreen, strange..

> "Resize to PAL": kdetv never had such an option. You may be confusing it with 
> some other program.

Must be, I was just looking for a size with lowest CPU load. Seem nvidia does this
on the host CPU. Resizing to 100% (PAL in my case) makes indeed not much sense
for a TV app...other than CPU usage of course.
 
> > One strange thing, when I was looking for these v4l option I opened and
> > close the picture settings dialog and now my colors are wrong. Now TV is
> > more or less black and white (even so with xawtv). This was before I
> > changed to openGL and, strangely, the openGL output has the colors
> > correct...restarting X...ah, colors are correct again. Hmm saw this before
> > once, when I was playing with mplayer's color settings..
> There were other NVIDIA users that reported this, too. Sounds like an XVIDEO 
> extension bug. I never saw this with my Open-Source Radeon drivers.

Ok thanks, I keep an eye on this. Btw, I though the ATI 3D drivers were closed
source too.

Koos