[Webkit-unassigned] [Bug 143471] [GTK] Layout Test canvas/philip/tests/2d.drawImage.animated.poster.html is failing

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Thu Apr 9 02:01:36 PDT 2015


--- Comment #1 from Max Stepin <maxstepin at yahoo.com> ---
According to APNG specs, the first frame can be marked hidden.

This test:
Frame 0: green (hidden)
Frame 1: red

This test assumes canvas drawImage() is sophisticated enough be able to return hidden apng frame (green).

Instead the image decoders in both Firefox and WebKit prefer not to keep the useless hidden frame in memory, so both return the first *visible* frame.

You can see Firefox draws red frame too:

So I think we should simply mark this test accordingly.

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