From: Antonino D. <ad...@po...> - 2002-12-03 17:59:01
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On Tue, 2002-12-03 at 20:47, Alan Cox wrote: > On Tue, 2002-12-03 at 12:22, Antonino Daplas wrote: > > > Things I like to get done for the vga16fb driver. > > > > > > 1) Its own read and write functions to fake a linear framebuffer. > > Should be doable with fb_write and fb_read, but with mmap, the app still > > needs to know the VGA format. > > I question whether thats something that belongs anywhere near the > kernel. Ben Pfaff wrote a fine library for vga16 hackery (BOGL) and it > combines very nicely with the fb driver. I kinda agree with this. Most fb apps use mmap to access the framebuffer, so it's almost impossible to fake a linear framebuffer from a planar one. > > > > 2) The ability to go back to vga text mode on close of /dev/fb. > > > Yes fbdev/fbcon supports that now. > > > > I'll take a stab at writing VGA save/restore routines which hopefully is > > generic enough to be used by various hardware. No promises though, VGA > > programming gives me a headache :( > > You can pull the code out of the old svgalib library. Since its not > doing any card specific stuff the generic vga->text restore ought to do > the right thing. > Thanks for the info. I think I'll review this one to see what I missed. Tony |