[gs-bugs] [Bug 689952] New: Ghostscript hangs with USE_HL_IMAGES=false and -DDOINTERPOLATE

[bugs.ghostscript.com-bugzilla-daemon at ghostscript.com]

http://bugs.ghostscript.com/show_bug.cgi?id=689952

           Summary: Ghostscript hangs with USE_HL_IMAGES=false and -
                    DDOINTERPOLATE
           Product: Ghostscript
           Version: HEAD
          Platform: PC
        OS/Version: Linux
            Status: NEW
          Severity: normal
          Priority: P4
         Component: Graphics Library
        AssignedTo: support at artifex.com
        ReportedBy: marcos.woehrmann at artifex.com
         QAContact: gs-bugs at ghostscript.com


The customer reports the following:

I've another problem with USE_HL_IMAGES disabled (which may be, or not, related
to the one reported one month ago for Gresyscale rendering).

The command:
gs -sDEVICE=tiff24nc -DDOINTERPOLATE -sOutputFile=a.tif -r200 -dNOPAUSE -f $1 -c
quit

If you execute this command with the standard 8.62 (or 8.61), there's no
problem. But if you recompile with USE_HL_IMAGE switched to "false", then gs
freezes somewhere. The CPU runs at 100%, and nothing more happens.

That's only in RGB, and only with interpolation enabled.

With 8.60, that's a little bit different: the base 8.60 freezes in all cases,
but my patched version of 8.60 (where I've applied all the various patchs you
sent me) works (with USE_HL_IMAGES=true, I mean). I found out that the fix comes
from the patch you sent me the 11 october 2007 ("Re: Wrong colors CMYK vs RGB").
In case that helps.

-------

I've attached the file in question and verified that gshead (r8825) continues to
fail in the same manner as described.



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