Re: Accelerated frame buffer functions

Haakon Riiser
2005-02-02T14:27:27Z

[Dick Johnson]

> On Wed, 2 Feb 2005, Haakon Riiser wrote:
>
>> How can I use a frame buffer driver's optimized copyarea, fillrect,
>> blit, etc. from userspace? The only way I've ever seen anyone use
>> the frame buffer device is by mmap()ing it and doing everything
>> manually in the mapped memory. I assume there must be ioctls for
>> accessing the accelerated functions, but after several hours of
>> grepping and googling, I give up. :-(
>
> X-Windows already does this.

Yeah, I thought the X11 fbdev driver supported acceleration, but not
according to its manpage:

fbdev is an Xorg driver for framebuffer devices. This is a
non-accelerated driver [...]

--
Haakon