lkml.org 
[lkml]   [1998]   [Mar]   [28]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: GGI Project Unhappy On Linux
    On Fri, 27 Mar 1998, Erik Andersen wrote:
    > On Fri, Mar 27, 1998 at 05:50:42PM +0100, Geert Uytterhoeven wrote:
    > > On Thu, 26 Mar 1998, Pavel Machek wrote:
    > > > How does fbcon work with hardware acceleration? [Once we solve
    > > > acceleration issue somehow, we can get rid of GGI and use fbcon
    > > > instead. But - I'm not sure if such thing even can be done. With
    > > > cards having critical registers neer non-critical ones :-( ]
    > >
    > > >From user space, the X server mmaps the MMIO registers.
    > >
    > > For text console acceleration (mainly scrolling), the kernel knows how to do
    > > simple blits for some chipsets. If no blit routines are available, it will use
    > > the CPU.
    >
    > Hmm. Could fbcon be made to work _with_ libggi? That way the

    That's perfectly possible.

    > framebuffer's drawing and acceleration code could stay in the userspace
    > libggi library -- not in the kernel. This move to a userspace libggi
    > could also move the "blits for some chipsets" code already in the kernel
    > out to userspace as well, so the kernel gets to use the nice, safe, sane
    > svga card support from the ggi folks, the ggi folks stay happy because
    > the Linux world finally apprecieates them, the X server folks get to
    > focus on X windowing things (instead of graphics card support) because
    > ALL Linux targets are just framebuffers, and Linus stays happy because
    > the device abstraction stays the same as it is now.

    People actually started working on a frame buffer device library, but it seems
    the project died.

    Greetings,

    Geert

    --
    Geert Uytterhoeven Geert.Uytterhoeven@cs.kuleuven.ac.be
    Wavelets, Linux/{m68k~Amiga,PPC~CHRP} http://www.cs.kuleuven.ac.be/~geert/
    Department of Computer Science -- Katholieke Universiteit Leuven -- Belgium


    -
    To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
    the body of a message to majordomo@vger.rutgers.edu

    \
     
     \ /
      Last update: 2005-03-22 13:41    [W:0.022 / U:125.180 seconds]
    ©2003-2016 Jasper Spaans. hosted at Digital OceanAdvertise on this site