RESOLVED FIXED65560
[chromium] accelerated canvas-to-canvas draws incur an unnecessary readback 
https://bugs.webkit.org/show_bug.cgi?id=65560
Summary [chromium] accelerated canvas-to-canvas draws incur an unnecessary readback
Stephen White
Reported 2011-08-02 12:22:40 PDT
In http://trac.webkit.org/changeset/91870, I added a lockPixels() call to ImageBuffer[Skia]::draw() in order to fix printing, which draws from accelerated->non-accelerated contexts. However, this causes a readback even in the accelerated->accelerated case, causing a performance slowdown.
Attachments
Patch (2.58 KB, patch)
2011-08-02 12:26 PDT, Stephen White 		jamesr: review+
DetailsFormatted DiffDiff
View All Add attachment proposed patch, testcase, etc.
Stephen White
Comment 1 2011-08-02 12:26:51 PDT
Created attachment 102680 [details] Patch
James Robinson
Comment 2 2011-08-02 12:32:05 PDT
Comment on attachment 102680 [details] Patch R=me
Stephen White
Comment 3 2011-08-02 14:09:53 PDT
Committed r92227: <http://trac.webkit.org/changeset/92227>
Note You need to log in before you can comment on or make changes to this bug.