[PATCH 00/18] Xfbdev Atari and Amiga support

[Jasper St. Pierre]

Uh, I think you accidentally sent this patch set five days early.


On Wed, Mar 27, 2013 at 9:20 AM, Geert Uytterhoeven <geert at linux-m68k.org>wrote:

> This patch series revives some of the support for Atari and Amiga that
> existed
> in XF68_FBDev, but got lost after XFree86 3.x.
>
> Generic:
>   - All non-packed frame buffer layouts use shadowfb, and fast "c2" for
>     chunky-to-planar conversion.
>   - As the KDrive "keyboard" driver is broken, you have to use evdev
> instead.
>   - 4 bpp is of limited use with modern clients, as e.g. GdkRgb doesn't
> support
>     4 bpp color. gdkRgb does support 4 bpp grayscale, so you may want to
> force
>     the visual to grayscale.
>   - I haven't benchmarked it yet against XF68_FBDev 3.6, but it's unusable
> slow
>     on my Amiga 4000/040, even for just moving the mouse pointer. May be
> due to
>     excessive TLS syscalls with recent glibc. It is usable on ARAnyM on
> Intel
>     Core 2 Quad.
>
> Status on Atari:
>   - 1 bpp, 4 bpp, and 8 bpp now work (16 bpp already worked before, as
> it's a
>     packed mode)
>   - 2 bpp is not yet supported. It's of limited use anyway due to the low
>     number of colors.
>
> Status on Amiga:
>   - 1 bpp, 4 bpp, and 8 bpp now work.
>   - 2, 3, 5, 6, and 7 bpp are not yet supported. 5 and 6 bpp may be useful
> as
>     they improve Chip RAM access for the CPU, compared to 8 bpp.
>   - The keyboard map is messed up, even with
>     "-keybd evdev,,device=/dev/input/event0,xkbmodel=amiga"
>
> Sample invocation:
>
>     Xfbdev -keybd evdev,,device=/dev/input/event0 \
>            -mouse evdev,,device=/dev/input/event1 [ -cc grayscale ]
>
> List of patches:
>   [01/18] debian/rules: Enable kdrive-mouse and kdrive-evdev on Linux
>   [02/18] miext/shadow/shpacked.c: Remove unused PickBit() define
>   [03/18] [RFC] mi: Avoid division by zero errors in miInitializeColormap()
>   [04/18] test/input: Fix double-aligned test in dix_valuator_alloc() on
> m68k
>   [05/18] KDrive: Bail out if screen initialization failed
>   [06/18] Xfbdev: Make char *fbdevDevicePath const
>   [07/18] Xfbdev: Handle unset var.bits_per_pixel
>   [08/18] Xfbdev: Add support for monochrome visuals
>   [09/18] Xfbdev: Treat 1 bpp pseudocolor as monochrome
>   [10/18] Shadow: Add c2p core
>   [11/18] Shadow: Add support for Atari iplan2p4
>   [12/18] Shadow: Add support for Atari iplan2p8
>   [13/18] Shadow: Add support for Amiga afb4
>   [14/18] Shadow: Add support for Amiga afb8
>   [15/18] Xfbdev: Reject unsupported frame buffer types
>   [16/18] Xfbdev: Force shadowfb for frame buffers with non-packed pixels
>   [17/18] Xfbdev: Wire up Atari iplan2p4 and iplan2p8 support
>   [18/18] Xfbdev: Wire up Amiga afb4 and afb8 support
>
> All patches are relative to Debian's xorg-server-1.12.4 package.
> However, all of them (except for the first one, which is Debian-specific)
> apply to current xorg-server.git.
>
> Gr{oetje,eeting}s,
>
>                                                 Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 --
> geert at 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
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>



-- 
  Jasper
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