[Webkit-unassigned] [Bug 109227] [EFL][WK2] Snapshot sometimes produces dark images.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=109227





--- Comment #2 from Viatcheslav Ostapenko <ostap73 at gmail.com>  2013-02-12 00:18:22 PST ---
It appears that in webgl-composite-modes-repaint test everything works as it implemented.

This test uses fast/repaint/resources/repaint.js to invoke repaintTest after initial paint.
repaint.js forces page re-layout and uses testRunner.display() before invoking testRunner.js . 
testRunner.display() paints page contents shadowed by gray surface, so this test produces darker blue tiles with canvas content composited on top.
The repaintTest() method contains code which only changes canvas content, so only canvases get updated, but not tiles.
>From all this it looks that webgl-composite-modes-repaint-actual.png is correct test output.
At the same time on chromium canvas update causes full page repaint and final page snapshot appears brighter.

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