Bug 50303

Summary: [Cairo] Solid shadows in contexts with scaling transformation matrices appear blurry
Product: WebKit Reporter: Martin Robinson <mrobinson>
Component: WebKitGTKAssignee: Dominik Röttsches (drott) <d-r>
Status: RESOLVED WORKSFORME    
Severity: Normal CC: d-r
Priority: P3 Keywords: Gtk
Version: 528+ (Nightly build)   
Hardware: PC   
OS: Linux   
Bug Depends on: 50283    
Bug Blocks:    
Attachments:
Description Flags
Current result none

Martin Robinson
Reported 2010-11-30 17:31:40 PST
When figure in a context with a scaling transformation matrix has a solid shadow, that shadow is rendered blurry in proportion to the magnitude of the scale. I believe what's happening here is that cairo is mask and stretching the edge. This can be observed by looking at fast/canvas/canvas-scale-fillPath-shadow.html. The solid shadow has a blurry edge.
Attachments
Current result (32.60 KB, image/png)
2012-06-01 04:40 PDT, Dominik Röttsches (drott) 		no flags
Details
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Dominik Röttsches (drott)
Comment 1 2012-06-01 04:40:51 PDT
Created attachment 145270 [details] Current result Martin, can you explain a bit more what you think goes wrong? Looking at the source of the test, line 56 has: ctx.shadowBlur = 10; So I believe, the two rightmost red rectangles are actually supposed to have blurry edges. I tested this with Debug GTKLauncher on r119211. So I can't see anything wrong here, we may close this issue.
Martin Robinson
Comment 2 2012-06-01 08:42:46 PDT
Looks okay to me now too. Perhaps this was a bug in Cairo or was fixed by some other change!
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