Re: [linux-fbdev] New api again

[Takashi Oe <to...@un...>]

On 1/16/01 1:23 PM, James Simmons wrote:

> 
> Hi folks!!
> 
> Since 2.4 is now out and the new console system is becoming stable its
> time to discuss the new api for fbcon again. I updated skeletonfb for a
> example and posted here. Feel free to addd input to the design.

[...]
> /*
> *  Set a single color register. The values supplied have a 16 bit
> *  magnitude. Return != 0 for invalid regno. This routine assumes
> *  your graphics hardware is packed pixel based (most are :-).
> *  Return != 0 for invalid regno.
> */
> static int xxxfb_setcolreg(unsigned regno, unsigned red, unsigned green,
> unsigned blue, unsigned transp,
> const struct fb_info *info)

Could there be a multiple color version as well?  For 2.4, I have my own
fb_set_cmap to do that since a cmap access requires a synchronization with
vsync for the first one on my machine, and I don't want to do the
synchronization for every cmap change.

Want to do:
- vsync
- multiple cmap change
rather than:
- vsync
- a cmap change
- vsync
- a cmap change
- ....

If there is a way to override fb_set_cmap (or a new api's equivalent)
calling setcolreg, that would be okay, too.

[...]
> info.pseudo_palette = xxxfb_pseudo_palette;

How is this psuedo_palette used for new api?


Takashi Oe