Re: [Patch] Basic WYSIWYG printing in GNU Emacs

[Eli Zaretskii]

> Date: Wed, 11 Aug 2021 19:51:46 +0300
> From: Eli Zaretskii <eliz@gnu.org>
> Cc: emacs-devel@gnu.org
> 
> > From: Anand Tamariya <atamariya@gmail.com>
> > Date: Wed, 11 Aug 2021 21:19:14 +0530
> > Cc: emacs-devel@gnu.org
> > 
> >  > Theoretically, there's no dependency except Ghostscript which does most 
> > of the heavy lifting for
> >  printing in
> >  > Emacs. Fonts other than Truetype might require additional configuration 
> > as defined in Ghostscript
> >  manual.
> > 
> >  Could you please point to the code which uses or requires Ghostscript,
> >  I don't think I see it in the patch you sent.  And since you seem to
> >  be using the HarfBuzz rendering, why do we need Ghostscript at all?
> > 
> >  Thanks.
> > 
> > Correction is in order - the screenshot/ rendering within Emacs requires 
> > Ghostscript. Printing to printer
> > would use OS specific print commands e.g. lpr on *nix.
> 
> Now I'm even more confused.  How does one "render within Emacs with
> Ghostscript"?  Emacs display rendering uses our display engine, which
> doesn't need Ghostscript, and AFAIK cannot use it.  I guess I'm
> misunderstanding something very basic here...

To make sure I'm not too confused: you are talking about the code
which you posted here in the form of two patches, right?  Because
that's the only code I looked at, so if you are talking about some
other code, I can easily understand why I'm confused.