Bug 32068

Summary:	Create Image fallback for A8 format due to missing Qt support
Product:	cairo	Reporter:	Oleg Romashin <romaxa>
Component:	qt backend	Assignee:	cairo-bugs mailing list <cairo-bugs>
Status:	RESOLVED MOVED	QA Contact:
Severity:	normal
Priority:	medium
Version:	1.9.13
Hardware:	Other
OS:	All
Whiteboard:
i915 platform:		i915 features:
Attachments:	Create cairo image surface in case of a8

Description Oleg Romashin 2010-12-02 23:21:41 UTC

Created attachment 40757 [details] [review]
Create cairo image surface in case of a8 

Qt does not support rendering into A8 format, so cairo-qt in that case just fail
.............
QPainter::begin: Cannot paint on an image with the QImage::Format_Indexed8
format
Segmentation fault
QImage does not support painting on A8 surface, and not possible create
qpainter.
.............

https://bugzilla.mozilla.org/show_bug.cgi?id=602171


http://doc.qt.nokia.com/4.7/qimage.html#Format-enum
Note: Drawing into a QImage with QImage::Format_Indexed8 is not supported.

Comment 1 Bryce Harrington 2015-06-26 02:07:21 UTC

Anyone happen to know if this is still an issue with Qt?  It's been 5 years since this issue was filed so perhaps this is no longer necessary?

Comment 2 GitLab Migration User 2018-08-25 13:35:40 UTC

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