Re: [Linux-fbdev-users] Problem of programmation

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Thanks for your helpful.

I will read the documentation and work hard.

I'll tell you the resultat.

Thanks so much for your help

Bui Sy Phong

2006/8/22, Unger Richard <ric...@te...>:
>
> Hi!
>
> In general, access to the FrameBuffer device is exclusive under Linux.
>
> Thus one process can open /dev/fbX, and use the framebuffer, but another
> program cannot really do so at the same time.
> This is almost a necessity, since the processes could otherwise set
> different bit-depths or resolutions, or otherwise interfere with the
> settings of the other process!
> There's also the memory to consider! Access to the framebuffer memory
> would have to be synchronized between the different processes.
>
> There are solutions for your problem:
>
> For example, X11 is one such solution. It will access the GFX Hardware
> (either through framebuffer or directly) and provides an API allowing the
> programmer to handle multiple windows.
>
> DirectFB (www.directfb.org) is another interesting solution allowing
> multiple applications to share a linux framebuffer.
>
> Richard Unger
>
>
> > -----Urspr=FCngliche Nachricht-----
> > Von: lin...@li...
> > [mailto:lin...@li...] Im
> > Auftrag von Bui Sy Phong
> > Gesendet: Dienstag, 22. August 2006 12:02
> > An: lin...@li...
> > Betreff: Re: [Linux-fbdev-users] Problem of programmation
> >
> > Yes, understood. But let me explain my project to you :
> >
> > My project consits to write a program witch will work like a
> > Linux graphic application but it must be cross-platform
> > (Linux, Zaurus and Linux based mobile phone).
> > It's a Linux graphic application so it must work when Window
> > Manager turned on :( It's cross-platform, so it must based on
> > Framebuffer.
> >
> > And this is a big problem to me.
> >
> > Can i have your suggestion about it ?
> >
> > Thanks so much,
> >
> > Bui Sy Phong
> >
> >
> >
> >
> >
> > 2006/8/22, Geert Uytterhoeven <ge...@li...>:
> >
> >       On Tue, 22 Aug 2006, Bui Sy Phong wrote:
> >       > I've tried to turn off Windows Manager (X11 or
> > something else like that on
> >       > Zarus Sharp SL-C3200 - because my projet is based on)
> > by booting in text
> >       > mode.
> >       > I try to execute my program in this mode and my
> > window is one more time
> >       > broken by the console, exactly, by the text on console.
> >       >
> >       > So, i think that i'm wrong somewhere in my program or
> > my solution is bad.
> >
> >       There's an ioctl to switch the console to KD_GRAPHICS
> > mode. If you do that, no
> >       more text will be printed by the console driver.
> >
> >       > I'm waiting always for your helpful.
> >       > Thanks so much.
> >       >
> >       > Bui Sy Phong
> >       >
> >       > 2006/8/22, Geert Uytterhoeven <ge...@li...>:
> >       > >
> >       > > On Tue, 22 Aug 2006, Bui Sy Phong wrote:
> >       > > > I'm a newbie on Framebuffer programmation and
> > newbie also on this
> >       > > mailing
> >       > > > list.
> >       > > >
> >       > > > Actually, i'm writing a little program witch will
> > display a full-screen
> >       > > > windows in bleu.
> >       > > > But when i execute this program, my windows is
> > always hiden by the
> >       > > console
> >       > > > or X11's windows. I dont understant how X11
> > communicates with
> >       > > Framebuffer so
> >       > > > i cannot do the same thing to display my windows
> > in first plane.
> >       > >
> >       > > You should not touch the frame buffer device while
> > X is active.
> >
> >       Gr{oetje,eeting}s,
> >
> >                                                       Geert
> >
> >       --
> >       Geert Uytterhoeven -- There's lots of Linux beyond ia32
> > -- ge...@li...
> >
> >       In personal conversations with technical people, I call
> > myself a hacker. But
> >       when I'm talking to journalists I just say "programmer"
> > or something like that.
> >
> >     -- Linus Torvalds
> >
> >
> > --------------------------------------------------------------
> > -----------
> >       Using Tomcat but need to do more? Need to support web
> > services, security?
> >       Get stuff done quickly with pre-integrated technology
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> > on Apache Geronimo
> >
> > http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&
> > dat=3D121642
> > <http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057
> > &dat=3D121642>
> >       _______________________________________________
> >       Linux-fbdev-users mailing list
> >       Lin...@li...
> > <mailto:Lin...@li...>
> >       https://lists.sourceforge.net/lists/listinfo/linux-fbdev-users
> >
> >
> >
> >
>
> -------------------------------------------------------------------------
> Using Tomcat but need to do more? Need to support web services, security?
> Get stuff done quickly with pre-integrated technology to make your job
> easier
> Download IBM WebSphere Application Server v.1.0.1 based on Apache Geronim=
o
> http://sel.as-us.falkag.net/sel?cmd=3Dlnk&kid=3D120709&bid=3D263057&dat=
=3D121642
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