W3C home > Mailing lists > Public > public-mwts@w3.org > January 2010

WCTMB canvas test failing on pre-2.0 Android platforms

From: Kai Hendry <hendry@aplix.co.jp>
Date: Tue, 12 Jan 2010 23:43:48 +0000
Message-ID: <b24851261001121543r1bbbc98ejf935ec452c050b6f@mail.gmail.com>
To: public-mwts <public-mwts@w3.org>

The problem is that Android 1.6's canvas support is otherwise pretty good.

http://www.w3.org/2008/06/mobile-test/canvas-new.js is quite a
difficult test. If I remember correctly I made the test harder,
because I noticed that some canvas implementations weren't doing
compositions with transparency right. Transparency is arguably just
eye candy, though one could argue the same with the whole of canvas.

Android 2.0 and 2.0.1 have this particular canvas bug fixed. This
issue manifested itself at work since we didn't do any canvas demos on
1.6 since we assumed it didn't have correct support, which is not
quite true. The point is, this bug is fairly easy to work around for
most cases, so people should not be fooled (like I did myself) into
thinking Android 1.6 has inadequate canvas support.

However, after giving it some thought, I propose not to change the
test and keep it as it is.

Kind regards,
Received on Tuesday, 12 January 2010 23:44:23 UTC

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