tags 664966 + upstream
quit
Hi Vincent,
Vincent Bernat wrote:
> cupsfilters 1.0.7 include a fix for Brother printers to workaround a
> bug in the Postscript interpreter:
>
> - pdftops: Additional workaround for a bug in the PostsSript interpreters
> of Brother printers, calling Ghostscript with special command line
> options (LP: #955553).
>
> Unfortunately, this fix relies on a patch in Ghostscript which is not
> applied in Debian. Please, apply it.
[...]
> --- a/base/gdevpdfb.c
> +++ b/base/gdevpdfb.c
> @@ -293,16 +293,18 @@
> * that would need to be passed.
> */
> if (pres) {
> - /*
> - * Always use CCITTFax 2-D for character bitmaps. It takes less
> - * space to invert the data with Decode than to set BlackIs1.
> - */
> - float d0 = image.Decode[0];
> + if (!pdev->NoT3CCITT) {
> + /*
> + * Always use CCITTFax 2-D for character bitmaps. It takes less
> + * space to invert the data with Decode than to set BlackIs1.
> + */
> + float d0 = image.Decode[0];
[...]
> --- a/base/gdevpdfx.h
> +++ b/base/gdevpdfx.h
> @@ -704,6 +704,11 @@
> bool IsDistiller;
> bool PreserveSMask;
> bool PreserveTrMode;
> + bool NoT3CCITT; /* A bug in Brother printers causes
> CCITTFaxDecode
> + * to fail, especially with small
> amounts of data.
> + * This parameter is present only to
> allow
> + * ps2write output to work on those
> pritners.
> + */
This is internal to the PDF-writing driver, so not an ABI change (phew).
Makes sense. Please report this upstream at
http://bugs.ghostscript.com/ and let us know the bug number so we can
track it.
Thanks,
Jonathan
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