tree e89b1f14162a7aa38b1122063605600a0c059741
parent a4cdfbb0d589e3969d4486ea3f9082ee6d4b8bc5
author Florin Malita <fmalita@chromium.org> 1535726094 -0400
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1535728467 +0000

[skottie] SkTArray begone

SkTArray is not a good choice for tigh allocations:

  - its minimum allocation count is 8
  - reserve(sz) doesn't adjust capacity to the exact value, but padds
    the same way as normal growth (max(sz, 8, 50%))
  - no shrink_to_fit() function to trim unneeded capacity

Since keyframed properties with a small number of frames are quite
common in Lottie, this adds significant heap overhead.

Switch to std::vector(), reserve() to the estimated frame count and
shrink_to_fit() when done parsing.

Bug: skia:8340

Change-Id: Id575e2da2fd17537948c2b38485a8accdb9f7a8b
Reviewed-on: https://skia-review.googlesource.com/150905
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>