Bug 107112

Summary:	Bitmap not shown
Product:	poppler	Reporter:	oliver.sander
Component:	splash backend	Assignee:	poppler-bugs <poppler-bugs>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium	CC:	oliver.sander
Version:	unspecified
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Problematic page rendered with the splash backend Problematic page rendered with the arthur backend

Description oliver.sander 2018-07-04 07:33:29 UTC

Created attachment 140460 [details]
Problematic page rendered with the splash backend

Consider the file http://www.mdpi.com/2072-4292/10/5/804/pdf

The bitmaps in Figure 7 on page ??? are not shown with the splash backend.

To reproduce: 

./test-render-to-file-qt5 ~/tmp/remotesensing-10-00804-v2.pdf

and then have a look at test-render-to-file11.ppm (attached as test-render-to-file11-splash.ppm).

For comparison, call

./test-render-to-file-qt5 ~/tmp/remotesensing-10-00804-v2.pdf -arthur

and then have a look at test-render-to-file11.ppm again (attached as test-render-to-file11-arthur.ppm).

BTW, the test program prints 'Bogus memory allocation size' several times when handling the pages with the problematic images.

Comment 1 oliver.sander 2018-07-04 07:34:00 UTC

Created attachment 140461 [details]
Problematic page rendered with the arthur backend

Comment 2 oliver.sander 2018-07-04 07:35:04 UTC

Corresponding Okular bug report: https://bugs.kde.org/show_bug.cgi?id=396094

Comment 3 Albert Astals Cid 2018-07-18 21:56:40 UTC

The 'Bogus memory allocation size' is actually the issue, it's trying to allocate a huge bitmap and failing to do so. Someone with time should investigate if that bitmap can be made smaller (there's something like some matrix calculation that can be made earlier?) or if not if we can just use various bitmaps when the needed bitmap is just too big.

Comment 4 GitLab Migration User 2018-08-21 11:08:47 UTC

-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been closed from further activity.

You can subscribe and participate further through the new bug through this link to our GitLab instance: https://gitlab.freedesktop.org/poppler/poppler/issues/532.

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