115846 2013-05-08 20:57:00 -0700 Checking if frame is complete and access duration doesn't need a decode 2013-10-30 09:16:52 -0700 1 1 1 Unclassified WebKit Images 528+ (Nightly build) Unspecified Unspecified RESOLVED DUPLICATE 116041 BlinkMergeCandidate P2 Normal --- 1 rniwa webkit-unassigned barraclough benjamin kling koivisto mjs ossy oldest_to_newest 886586 0 rniwa 2013-05-08 20:57:00 -0700 https://chromium.googlesource.com/chromium/blink/+/899a7a4375e3d124a3e740aa368ef733f3ebfa3e 886587 1 rniwa 2013-05-08 20:57:21 -0700 Consider merging the above change. hecking if frame is complete and access duration doesn't need a decode The goal of this change is to minimize image decoding on the main thread. This change is to avoid image decoding for these two operations: 1. frameIsCompleteAtIndex 2. frameDurationAtIndex These two operations are moved to ImageDecoder interface and are now const to prevent future regression. We are now able to check if a frame is complete by parsing the entire GIF file without decoding. This also provides information like frame duration such that controller the animation doesn't require any decoding. This change is critical to moving animated image decoding off the main thread. 944926 2 ossy 2013-10-30 09:16:52 -0700 *** This bug has been marked as a duplicate of bug 116041 ***