[gs-bugs] [Bug 691883] segfault with <</UseCIEColor true>>setpagedevice

bugzilla-daemon at ghostscript.com bugzilla-daemon at ghostscript.com
Thu Jan 20 18:38:20 UTC 2011


Ray Johnston <ray.johnston at artifex.com> changed:

           What    |Removed                     |Added
         AssignedTo|support at artifex.com         |michael.vrhel at artifex.com
         OS/Version|Linux                       |All

--- Comment #3 from Ray Johnston <ray.johnston at artifex.com> 2011-01-20 18:38:16 UTC ---
This is reproduced with HEAD (rev 12039) on Windows built with VS 2008.

We'd really like to dump wts in favor of Michael's new method of generating
halftone screens. Assigning to Michael so when the new halftone screen method
is ready, we can close this bug.

Hopefully we can implement the new method so that the following will still
work and generate an appropriate screen (extracted from the top of xxx.ps):

    << /UseWTS true >> setuserparams 
        /AccurateScreens true
        /HalftoneType 1
        /HalftoneName (Round Dot Screen) cvn
        /SpotFunction { 180 mul cos exch 180 mul cos add 2 div}
        /Frequency 137
        /Angle 37
    >> sethalftone

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