131889 2014-04-19 10:57:41 -0700 Incomplete body painting when using blend modes 2014-04-25 01:05:02 -0700 1 1 1 Unclassified WebKit Layout and Rendering 528+ (Nightly build) Unspecified Unspecified RESOLVED FIXED InRadar P2 Normal --- 95614 1 simon.fraser webkit-unassigned cabanier commit-queue esprehn+autocc glenn kondapallykalyan krit mihnea rosca simon.fraser webkit-bug-importer oldest_to_newest 1002225 0 229736 simon.fraser 2014-04-19 10:57:41 -0700 Created attachment 229736 Testcase Attached testcase (fix it to point to a local copy of ducky.png) shows a bug where the body background is only partially painted. It flashes horribly when hovering the boxes. 1002226 1 simon.fraser 2014-04-19 10:58:36 -0700 This is a blocker to Safari shipping blend modes. <rdar://problem/16668770> 1002452 2 229781 cabanier 2014-04-20 20:54:11 -0700 Created attachment 229781 simplified version even simpler version. This has to be a recent break since basic content is now drawing incorrectly. 1002491 3 cabanier 2014-04-20 23:14:03 -0700 It looks like this was caused by https://bugs.webkit.org/show_bug.cgi?id=130892 1003315 4 mihnea 2014-04-23 10:23:28 -0700 (In reply to comment #3) > It looks like this was caused by https://bugs.webkit.org/show_bug.cgi?id=130892 Nope, it's https://bugs.webkit.org/show_bug.cgi?id=129154. 1003594 5 rosca 2014-04-24 02:24:47 -0700 I'm looking into it. 1003978 6 230143 rosca 2014-04-24 23:16:44 -0700 Created attachment 230143 Patch 1003979 7 rosca 2014-04-24 23:25:35 -0700 The patch I attached avoids creating a transparency layer for the root renderer that has unisolated blending descendants. However, the issue with background being painted incompletely is not fixed for other reasons that trigger transparency layers on the document element: opacity, mask or mix-blend-mode. This issue is reported here: https://bugs.webkit.org/show_bug.cgi?id=75460. 1004006 8 230143 commit-queue 2014-04-25 01:04:57 -0700 Comment on attachment 230143 Patch Clearing flags on attachment: 230143 Committed r167796: <http://trac.webkit.org/changeset/167796> 1004007 9 commit-queue 2014-04-25 01:05:02 -0700 All reviewed patches have been landed. Closing bug. 229736 2014-04-19 10:57:41 -0700 2014-04-19 10:57:41 -0700 Testcase blend-mode-layers.html text/html 1155 simon.fraser PCFET0NUWVBFIEhUTUw+CjxoZWFkPgogICAgPHN0eWxlPgogICAgICAgIGJvZHkgewogICAgICAg ICAgICBiYWNrZ3JvdW5kLWNvbG9yOiBncmF5OwogICAgICAgIH0KICAgICAgICBpbWcgewogICAg ICAgICAgICB3aWR0aDogMTUwcHg7CiAgICAgICAgICAgIGhlaWdodDogMTUwcHg7CiAgICAgICAg ICAgIG1hcmdpbjogMTBweDsKICAgICAgICAgICAgcGFkZGluZzogMTBweDsKICAgICAgICB9Cgog ICAgICAgIGltZzpob3ZlciB7CiAgICAgICAgICAgIC13ZWJraXQtdHJhbnNmb3JtOiB0cmFuc2xh dGVaKDApOwogICAgICAgIH0KICAgIDwvc3R5bGU+CjwvaGVhZD4KPGJvZHk+CjxpbWcgc3R5bGU9 Im1peC1ibGVuZC1tb2RlOiBtdWx0aXBseSIgY2xhc3M9ImNvbXBvc2l0ZWQiIHNyYz0iLi4vLi4v cmVzb3VyY2VzL2R1Y2t5LnBuZyI+CjxpbWcgc3R5bGU9Im1peC1ibGVuZC1tb2RlOiBzY3JlZW4i IGNsYXNzPSJjb21wb3NpdGVkIiBzcmM9Ii4uLy4uL3Jlc291cmNlcy9kdWNreS5wbmciPgo8aW1n IHN0eWxlPSJtaXgtYmxlbmQtbW9kZTogZGFya2VuIiBjbGFzcz0iY29tcG9zaXRlZCIgc3JjPSIu Li8uLi9yZXNvdXJjZXMvZHVja3kucG5nIj4KPGltZyBzdHlsZT0ibWl4LWJsZW5kLW1vZGU6IGxp 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