Bug 2938

Summary:	Size zero font badness
Product:	cairo	Reporter:	Owen Taylor <otaylor>
Component:	pdf backend	Assignee:	Kristian Høgsberg <krh>
Status:	RESOLVED FIXED	QA Contact:	cairo-bugs mailing list <cairo-bugs>
Severity:	normal
Priority:	high	CC:	jwatt
Version:	0.9.3
Hardware:	x86 (IA32)
OS:	Linux (All)
Whiteboard:
i915 platform:		i915 features:
Attachments:	Test case Proposed patch - just skip size zero (and near) fonts

Description Owen Taylor 2005-04-08 13:26:43 UTC

The attached program results in a PDF file with 'nan' in some of 
it's matrices and runs Xpdf out of memory. 

It also goes up to 680megs when run, which is a Cairo bug somewhere,
though possibly not in the PDF backend.

Comment 1 Owen Taylor 2005-04-08 13:27:44 UTC

Created attachment 2354 [details]
Test case

Comment 2 Owen Taylor 2005-08-19 12:58:40 UTC

Created attachment 2934 [details] [review]
Proposed patch - just skip size zero (and near) fonts

Comment 3 Owen Taylor 2005-08-19 12:59:40 UTC

I dont' get NaN in the output any more, but it still causes xpdf to go
into a memory allocation fit, so here's a patch that just omits any
fonts below 0.001 pt.

Comment 4 Owen Taylor 2005-08-19 14:04:44 UTC

2005-08-19  Owen Taylor  <otaylor@redhat.com>

        * src/cairo-pdf-surface.c (_cairo_pdf_surface_show_glyphs):
        Ignore really small fonts, since size zero fonts give xpdf
        fits. (#2938)

Comment 5 Carl Worth 2005-08-22 17:15:53 UTC

Move bugs against "cvs" version to "0.9.3" so we can remove the "cvs" version.

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