nanogui@linuxhacker.org

On Wed, 19 May 1999, Greg Haerr wrote:
> 	I'm not talking about the linear modes, they're easy, and of course
> you have to read, xor, and write.

Okay, I didn't realise that.

> 	I don't doubt they may be hidden.  I haven't had a chance to look
> at the drivers you sent me.  Does X support a framebuffer driver for
> the vga 16-color planar mode, or just the linear modes?

I think so, the code is pretty difficult to follow. Actually I later
realised that the stuff I sent you isn't all of the driver, just the
generic frame buffer code (for frame buffers on any kind of graphics card,
rather than specifically the Linux frambuffer).

> 	In the planar drivers that I've seen, sometimes all the MODE_SET stuff
> is hidden in an entirely separate proc that sets up the VGA hardware to
> automatically do the XOR etc without having to write code for it per
> pixel.

I'll look into it.

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