2010/1/19 Morten Sjøgren <[email protected]>

> Hi,
>
> I've checkout the swftools from git and with pdf2swf I get a segmentation
> fault in "polyops_startclip" on some pages from a PDF created with
>
> Adobe InDesign CS4
>
>
> ---------------------------------------------------------------------------------------------------------
> VERBOSE clearSoftMask statepos=3
> VERBOSE Casting gfxline of 0 segments to a stroke-polygon
> VERBOSE Casting gfxline of 5 segments (5 line segments) to a gfxpoly
> VERBOSE Comparing polygon renderings of size 852x233 and 852x233
> VERBOSE Bad SVP rewinding result- polygons don't match
> VERBOSE Error in polygon processing
> Segmentation fault
>
> ---------------------------------------------------------------------------------------------------------
>
> It segmentation fault because "i->out" is null in "polyops_startclip" and
> it's null because of a check that fails in:
> "ArtSVP* run_intersector(ArtSVP*svp, ArtWindRule rule)"
>
> When the check "if(!compare_bitmaps(&bbox, data1, data2)) {" fails it
> causes the function to "return 0;", which is bad since the return apparently
> is used later on.
>
> I'm attaching a temporary patch that fixes the problem for me, but I'm sure
> there must be a better solution, like figuring out why the two bitmaps are
> different.
>
> Yours
> - Morten Sjøgren
>

I still need to use my patch with the latest git checkout.

And I was wondering what the purpose of the function run_intersector is?
More specific what is the expected result from this function when the
"if(!compare_bitmaps(&bbox, data1, data2)) {" fails?

Thanks.
-
Morten Sjøgren

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