Re: Segfault in xscanimage

From: Oliver Rauch (oliver.rauch@Wolfsburg.DE)
Date: Sat Jan 29 2000 - 14:32:08 PST

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    Karl Heinz Kremer wrote:

    > On Sat, Jan 29, 2000 at 05:40:07PM +0100, Oliver Rauch wrote:
    > > Hi Karl Heinz
    > >
    > > try if it works when you comment out:
    > > s->opt[ OPT_GAMMA_VECTOR].cap |= SANE_CAP_ADVANCED;
    > > and the equivalent lines for red/green/blue
    > >
    >
    > How did you know? When I remove the "Advanced" settings from
    > the Options then it works. This however causes the gamma curves
    > to be placed on the "normal" interface of xscanimage and not the
    > advanced one where they belong (IMHO).
    >

    The gamma curves are placed in an own box in xscanimage.
    You wrote you get a crash when you disable the advanced options
    and I never have seen that someone put the gamma table into "advanced",
    so it was relative simple to guess.

    If you add a bool option "custom gamma table" (take a look in saneopts.h)
    that sets the gamma vectors to .cap |= SANE_CAP_INACTIVE
    then the user can disable the gamma table compareable to the way the
    advanced options can be enabled/disabled.

    Of course it is a bug in xscanimage that you get a segfault. But I think it is not
    too bad in the moment!

    Bye
    Oliver 

    --
Homepage:       http://www.wolfsburg.de/~rauch
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E-Mail:         mailto:Oliver.Rauch@Wolfsburg.DE

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