Framebuffer functionality chart (was Re: [Linux-fbdev-users] Project update, new website)

[Otto Wyss <otto.wyss@orpatec.ch>]

"Antonino A. Daplas" wrote:
> 
> On Friday 20 August 2004 23:31, Otto Wyss wrote:
> > I intend to change the status page into a functionality chart. First I
> > have to know which functionality exists and are important enough to be
> > listed. Any imput is welcomed.
> >
> Suggestion:
> 
> A.  Common to all:
> 
> Hardware:
> 1. color depths and color visuals supported
> 2. can the driver pan on the y-axis?
> 3. can the driver pan on the x-axis?
> 4. can the hardware state be changed (ie with fbset)?
> 5. access to framebuffer (fb_read/fb_write/mmap)
> 6. access to MMIO space
> 
> Console:
> 1. can it accelerate imageblit (font drawing)
> 2. can it accelerate copyarea (block transfers)
> 3. can it accelerate fillrect (block sets)
> 
> Video Mode setting:
> 1. How is the video mode set (more than 1 can be chosen)?
>         a. at driver load
>         b. user-specified modelines (ie. fbset)
>         c. global mode database
>         d. EDID/private mode database
>         e. EDID/GTF calculation
>         f. driver-specific method
> 
> B. Miscellaneous:
>         a. support for interrupts on vsync/vblank
>         b. ioctl for vsync/vblank
> 
Comments from other developers? Can these points be divided into two
groups ("essential" for minimal functionality and "advanced" for speed
improvements, nice to have features?

O. Wyss

-- 
See a huge pile of work at "http://wyodesktop.sourceforge.net/"


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