Re: Fix for 687081, PDF file produces incomplete tiff, fails to run in display device

Please commit.

Igor.

----- Original Message ----- 
From: "Alex Cherepanov" <[email protected]>
To: <[email protected]>; <[email protected]>
Sent: Thursday, October 16, 2003 1:19 AM
Subject: [gs-code-review] Fix for 687081, PDF file produces incomplete tiff,
fails to run in display device


> Fix error recovery code for PDF image; pop the operand of image operator
> restored by the standard PS error recovery.
>
> The image object "34 0 obj" is incorrect.
> It contains:
> << /BitsPerComponent 1  /Mask [ 130 130 ] ... >>
> but the mask components must be < 2**BitsPerComponent
> We can try to do something better than discarding the whole image.
>
>


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> Index: gs/lib/pdf_draw.ps
> ===================================================================
> RCS file: /cvs/ghostscript/gs/lib/pdf_draw.ps,v
> retrieving revision 1.77
> diff -b -u -r1.77 pdf_draw.ps
> --- gs/lib/pdf_draw.ps 8 Oct 2003 11:43:02 -0000 1.77
> +++ gs/lib/pdf_draw.ps 15 Oct 2003 20:48:34 -0000
> @@ -939,6 +939,7 @@
>     { ColorSpace setgcolorspace currentdict end setfillblend /image }
>    ifelse
>    .systemvar stopped {
> +    pop
>      $error /errorname get dup /ioerror eq {
>        pop (\n   **** Warning: File has insufficient data for an image.\n)
>        pdfformaterror
>


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