Bug 2938 - Size zero font badness
Summary: Size zero font badness
Status: RESOLVED FIXED
Alias: None
Product: cairo
Classification: Unclassified
Component: pdf backend (show other bugs)
Version: 0.9.3
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: Kristian Høgsberg
QA Contact: cairo-bugs mailing list
URL:
Whiteboard:
Keywords:
Depends on:
Blocks:
 
Reported: 2005-04-08 13:26 UTC by Owen Taylor
Modified: 2005-08-22 00:15 UTC (History)
1 user (show)

See Also:
i915 platform:
i915 features:

Attachments
Test case (589 bytes, text/plain)
2005-04-08 13:27 UTC, Owen Taylor 		Details
Proposed patch - just skip size zero (and near) fonts (1.72 KB, patch)
2005-08-19 12:58 UTC, Owen Taylor 		Details | Splinter Review
View All

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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