Re: Re: [gs-cvs] gs/lib

Thanks Ray.

I only want to add that such things cold be generated by the old
Ghostscript,
and they can live in Internet for a long time. Therefore
the backward compatibility is important.

Igor.


----- Original Message ----- 
From: "Ray Johnston" <[email protected]>
To: "Igor V. Melichev" <[email protected]>
Cc: <[email protected]>; "Ray Johnston" <[email protected]>
Sent: Friday, November 14, 2003 11:14 PM
Subject: Re: [gs-code-review] Re: [gs-cvs] gs/lib


> Igor,
>
> Igor V. Melichev wrote:
> >
> > Now I've tested the patch and detected a regression with 031-05.ps .
> > The generated PDF file contains
> >
> > q
> > 0 0 m
> > W n
> > q
> > 10 0 0 10 0 0 cm BT
> > /R12 10.9 Tf
> > 1 0 0 1 202.124 178 Tm
> > (Genoa Technology Genoa Technology )Tj
> > ET
> > Q
> > Q
> >
> > and the text must not be painted.
> >
> > I would very appreciate if you test patches before commitment.
>
> I did test the patch with all of the PDF files in the reqression suite,
> just not with the PDF files created by our pdfwrite from Genoa tests.
>
> I've traced the problem to a strange "feature" in the pdf_ops.ps.
> It specifically uses 'fsexec' to preserve currentpoint across the
> fill/stroke operations. The reason for this is not documented and
> I've traced this to a change made between versions 3.45 and 3.46.
> The only NEWS entry that seems to relate to this is:
>
> ------------
> Fixes bugs:
>          - PDF to PostScript conversion didn't work.  (pdf_main.ps)
>
> Shifts most of the work in the PDF interpreter from the reader to the
> ProcSet.  This simplifies the code considerably and also makes it easier
to
> modify.  (gs_pdf.ps, pdf_draw.ps, pdf_font.ps, pdf_main.ps)
> ------------
>
> I will be committing a change to remove the saving of 'currentpoint'
> from fsexec once my local regression testing completes, then I will
> also change the '/n { }' definitions to use on 'currentpoint'
> which will be Adobe Acrobat reader compatible.
>
> Regards,
> Ray
> ______________________________________________________________________
>
>