[lazarus] New gtkglarea demo

[Marcus Fazzi]

Any have a GTK/PHP sample?

----- Original Message -----
From: "Shane Miller" <SMiller1 at stvgb.org>
To: <lazarus at miraclec.com>
Sent: Thursday, October 18, 2001 11:03 AM
Subject: Re: [lazarus] New gtkglarea demo


> What is the module's actual name?  Where should it be located.  I didn't
have a MODULE section so I created one but now it says it can't find that
module.  Is the file the libGL.so or is it something else?
>
> Shane
>
>
> >>> kirby-2 at web.de 10/18/01 06:29AM >>>
>
> > How do I determine my Kernel version.
> Try "uname -r".
> For example:
> mulk at mulkomp:~ > uname -r
> 2.4.11-pre5
> mulk at mulkomp:~ >
>
> > Do I really need to compile something into the kernel
> > to get this to work?  Is loading modules enough?
> Usually you just have to load the module. But I prefer compiling all my
stuff
> into the kernel :)
> Besides, you only need to do something about the kernel (be it loading
modules
> or recompiling) if you want to use hardware acceleration.
>
> Just do what Mattias told you.
> You may want to redirect startx's output to some logfile and read it
> afterwards, i.e.: startx >x.log 2>x.err
> One of the two files (x.log or x.err) will be empty because X writes
> everything to stderr (or stdout, respectively), but I can't recall which
one
> :-)
>
> Just look for something like "Direct Rendering" or "GLX".
> If you read "Direct rendering enabled" somewhere, hardware acceleration
works;
> if not, then not. At least that's the case for me (XFree86 4.1.0).
>
> Maybe it's not important (probably it is for hardware acceleration), but I
> also have the lines:
>         Load            "dri"
>         Load            "drm"
> in the modules section of my XF86Config file (besides 'Load "glx"').
>
> Also, if you want to use hardware accelerated OpenGL as a normal user
(which
> is likely, isn't it?), you have to put this in the XF86Config file too:
>
> Section "DRI"
>         Group           "video"
>         Mode            0666
> EndSection
>
> This allows all users in group "video" to use OpenGL hardware
acceleration. Or
> so I think ;)
> You might want to create the group "video" and put yourself in it, or
change
> "video" to "users" or something.
> I don't know if you need all this if you want to use software rendering,
> though...
>
> In X, you can check if OpenGL is enabled quite easily: open a terminal
window
> and type "glxinfo".
>
> Mata ne,
> Magus
>
>
> Am Mittwoch, 17. Oktober 2001 21:58 schrieb Shane Miller:
> > No I didn't.  I'm not sure how to do that.  :-)  I looked at that site
> > dri.sourceforge.net and it said I needed kernel 2.4.5. How do I
determine
> > my Kernel version.  Do I really need to compile something into the
kernel
> > to get this to work?  Is loading modules enough?  ..too many questions.
> > :-) SHane
> >
> > >>> kirby-2 at web.de 10/17/01 08:21AM >>>
> >
> > Hi.
> >
> > Have you enabled DRI/GLX in your XF86Config file and compiled DRI/DRM
> > support into your kernel (or installed the appropriate module)?
> > It took me a while to set up OpenGL support, but it works for my ATI
Rage
> > 128 card.
> > If your card isn't supported by X or the Linux kernel, you will have to
use
> > software rendering (which is slooooooooooow).
> >
> > For more information see http://dri.sourceforge.net/.
> >
> > Mata ne,
> > Magus
> >
> >
> > Am Mittwoch, 17. Oktober 2001 14:57 schrieb Shane Miller:
> >
> > -- > After linking libGL.so.1 to libGL.so and installing gtkgl RPM I get
> >
> > > XLIb: extension "GLX" missing on display ":0.0".
> > >
> > > when I run it.  THen it quits.  Could it be my video card doesn't
support
> > > GL?
> > >
> > > Shane
> > >
> > > >>> nc-gaertnma at netcologne.de 10/16/01 09:19AM >>>
> > >
> > > Hi all,
> > >
> > > Thx to satan, there is a new gtkglarea demo which demonstrates
lighting,
> > > blending and animation. Simply compile and start it:
> > >
> > > cd <lazarusdir>/components/gtk/gtkglarea
> > > make
> > > ./gtkglarea_demo
> > >
> > > It's amazing!
> > >
> > > There is also an improved opengl unit with a lot of nvidia extensions
> > > (nvgl.pp).
> > >
> > >
> > > Normal bugfixes:
> > >   - Buttons now react to Return key.
> > >   - MessageDialogs have now a default Button.
> > >   - Splashform is more visible.
> > >   - reduced lcl output
> > >
> > > Mattias
> > >
>
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