tree 37e60202849dfce25b2a9a8e204ce0cb730da84c
parent 50d4a6a661909a36d259e3c6007337af8050a9fe
author Leon Scroggins III <scroggo@google.com> 1518800583 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1518802016 +0000

Ensure all rows of a gif are initialized

Bug: oss-fuzz:6274

Even if a frame does not have enough LZW blocks to decode all rows,
(which is unknown until we actually decode them), it is marked complete
once there are no more LZW blocks.

When decoding, even if we've decoded all LZW blocks, check fRowsDecoded
to determine whether we've actually all the rows. Report the number of
rows decoded so that SkCodec can fill in the remaining ones.

Change-Id: I1d6e0c29e3c37649725836cf24a4a239e3266b76
Reviewed-on: https://skia-review.googlesource.com/106964
Commit-Queue: Leon Scroggins <scroggo@google.com>
Reviewed-by: Mike Klein <mtklein@google.com>