Messages in this thread | ![/](/images/icornerl.gif) | | Date | Tue, 26 Jul 2005 09:13:46 +0200 (CEST) | From | Geert Uytterhoeven <> | Subject | Re: [PATCH] add NULL short circuit to fb_dealloc_cmap() |
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On Sun, 17 Jul 2005, Jon Smirl wrote: > On 7/17/05, Geert Uytterhoeven <geert@linux-m68k.org> wrote: > > > > > > struct fb_super_cmap { > > > struct fb_cmap cmap; > > > __u16 red[255]; > > > __u16 blue[255]; > > > __u16 green[255]; > > > __u16 transp[255]; > > ^^^ > > I assume you meant 256? > > > > > } > > > > > > Then adjust the code as need. Have the embedded cmap struct point to > > > the fields in the super_cmap and the drivers don't have to be changed. > > > > What if your colormap has more than 256 entries? > > I meant 256. Does any hardware exist that takes more that 256 entries?
1024 was quite common on high-end graphics hardware.
> They are __u16 values but I have never seen hardware that take more > that __u8 either.
10 bit was quite common on high-end graphics hardware.
IIRC, DEC TGA can do at least one of them.
Gr{oetje,eeting}s,
Geert
-- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org
In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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