Created attachment 171629 [details] fix-proposal WebGL displays the Canvas with (0,0) being the bottom left corner. In GraphicsSurface::platformPaintToTextureMapper we don't set ShouldFlipTexture flag before painting to TextureMapper. Thus the contents are not flipped. It results in backing store contents being drawn upside down on screen.
Attachment 171629 [details] did not pass style-queue: Failed to run "['Tools/Scripts/check-webkit-style', '--diff-files', u'Source/WebCore/ChangeLog', u'Source/WebCor..." exit_code: 1 Source/WebCore/ChangeLog:1: ChangeLog entry has no bug number [changelog/bugnumber] [5] Total errors found: 1 in 2 files If any of these errors are false positives, please file a bug against check-webkit-style.
Created attachment 171641 [details] patch
Comment on attachment 171641 [details] patch Clearing flags on attachment: 171641 Committed r133049: <http://trac.webkit.org/changeset/133049>
All reviewed patches have been landed. Closing bug.