Bug 691534

Summary: Incorrect blending
Product: MuPDF Reporter: Sebastian Rasmussen <sebastian.rasmussen>
Component: mupdfAssignee: Tor Andersson <tor.andersson>
Status: RESOLVED FIXED    
Severity: normal    
Priority: P4    
Version: unspecified   
Hardware: PC   
OS: Linux   
Customer: Word Size: ---
Attachments: Example .pdf exhibiting the issue.

Description Sebastian Rasmussen 2010-08-07 12:20:51 UTC
Created attachment 6627 [details]
Example .pdf exhibiting the issue.

The attached .pdf has an incorrect blending.
If the /ca-entry in object 5 0 R is changed to 1.0 the .pdf is rendered correctly.
Could this have something to do with the entire page contents being a transparency group?
Comment 1 Tor Andersson 2010-08-07 13:19:42 UTC
Colors were not premultiplied with the constant alpha before blending in the image painting function.