Commit Graph

2 Commits

Author SHA1 Message Date
scroggo
e71b1a1496 Report repetition count in SkCodec
Add a new accessor to retrieve the repetition count.

Remove constants (and corresponding copyright) in SkCodecAnimation.
These may make sense for the calling code, but are not needed here.

kRepetitionCountInfinite corresponds to Blink's kAnimationLoopInfinite.
Move cLoopCountNotSeen to private. It is used to determine whether we
still need to parse. Add a new enum to the parse query - only parse
enough to determine the repetition count.

Unlike Chromium, SkGifCodec does not account for deleting the reader
(which SkGifCodec does not do) or failed decodes.

Add a test.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2447863002

Review-Url: https://codereview.chromium.org/2447863002
2016-11-01 08:28:28 -07:00
Leon Scroggins III
fc49b403eb Use correct color table for prior GIF frames
While investigating skbug.com/5883 I noticed that we use the color
table for the current frame even while recursively decoding frames that
the current frame depends on.

This CL updates fCurrColorTable, fCurrColorTableIsReal and fSwizzler
before decoding prior frames, and then sets them back afterwards.

Move telling the client about the color table into prepareToDecode,
since the other callers do not need to do so. (That is only necessary
for decoding to index 8, which is unsupported for frames with
dependencies.)

Add a test that exposes the bug. colorTables.gif has a local color
table in its second frame that does not match the global table used by
the first frame.

GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=4208

Change-Id: Id2dc9e3283adfd92801d2f38726afa74574b1955
Reviewed-on: https://skia-review.googlesource.com/4208
Reviewed-by: Joost Ouwerling <joostouwerling@google.com>
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
2016-10-31 19:23:10 +00:00