181391 2018-01-08 10:02:44 -0800 When decoding thread fails to generate a new NativeImage, the main thread has to remove the ImageFrameRequest from commit queue 2020-05-30 19:58:00 -0700 1 1 1 Unclassified WebKit Images WebKit Nightly Build Unspecified Unspecified NEW https://bugs.webkit.org/show_bug.cgi?id=171614 P2 Normal --- 1 sabouhallawa sabouhallawa cdumez dbates ews-watchlist japhet mjs tobias.netzel oldest_to_newest 1386779 0 sabouhallawa 2018-01-08 10:02:44 -0800 This is a follow up for <http://trac.webkit.org/changeset/216998>. See the comment https://bugs.webkit.org/show_bug.cgi?id=171614#c20. ImageSource keeps two queues of ImageFrameRequest. The first one, 'm_frameRequestQueue", is shared between the main thread and the decoding thread. The second one, 'm_frameCommitQueue', is only accessible by the main thread. The m_frameCommitQueue is used to keep track of the pending requests. An item is removed only when the main thread caches it. It is also used to tell whether the decoding thread is busy or not without having to have another synchronized object. If the decoding thread fails to generate the NativeImage. We should be doing the following: -- The ImageFrameRequest should be removed from m_frameCommitQueue. -- The Image object should be notified the decoding was finished (even it failed). -- The HTMLImageElement::decode() promise should be rejected. -- BitmapImage::draw() should fall back to synchronous decoding mode. 1386900 1 330733 sabouhallawa 2018-01-08 13:57:12 -0800 Created attachment 330733 Patch 1657720 2 330733 mjs 2020-05-30 19:58:00 -0700 Comment on attachment 330733 Patch Unfortunately, this old patch fails to apply. 330733 2018-01-08 13:57:12 -0800 2020-05-30 19:58:00 -0700 Patch bug-181391-20180108135712.patch text/plain 18359 sabouhallawa SW5kZXg6IFNvdXJjZS9XZWJDb3JlL0NoYW5nZUxvZwo9PT09PT09PT09PT09PT09PT09PT09PT09 PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09PT09Ci0tLSBTb3VyY2UvV2Vi Q29yZS9DaGFuZ2VMb2cJKHJldmlzaW9uIDIyNjUzMikKKysrIFNvdXJjZS9XZWJDb3JlL0NoYW5n ZUxvZwkod29ya2luZyBjb3B5KQpAQCAtMSwzICsxLDUzIEBACisyMDE4LTAxLTA4ICBTYWlkIEFi 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