This reverts commit 3b347232bc.
Reason for revert: tree done gone red.
Original change's description:
> SkMath takes some functions from from SkTypes
>
> Moved to include/core/SkMath.h: Sk{Is|}Align{2|4|8|Ptr}, SkLeftShift,
> SkAbs{32|}, SkM{ax|in}32 SkTM{in|ax}, SkTClamp, SkFastMin32, SkTPin.
>
> Change-Id: Ibcc07be0fc3677731048e7cc86006e7aa493cb92
> Reviewed-on: https://skia-review.googlesource.com/133381
> Auto-Submit: Hal Canary <halcanary@google.com>
> Reviewed-by: Ben Wagner <bungeman@google.com>
> Commit-Queue: Hal Canary <halcanary@google.com>
TBR=mtklein@google.com,halcanary@google.com,bungeman@google.com,reed@google.com
Change-Id: I44073cf397e2a3a6a941a90f0aa63c6396d4c742
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Reviewed-on: https://skia-review.googlesource.com/152587
Reviewed-by: Mike Klein <mtklein@google.com>
Commit-Queue: Mike Klein <mtklein@google.com>
If the input SkStream has a length and position, do not copy and store
LZW blocks or ColorMaps. Instead, mark the position and size, and read
from the stream when necessary.
This will save memory in Chromium's use case, which has already
buffered all of its data.
In the case where we *do* need to copy, store it on the SkStreamBuffer.
This allows SkGifImageReader to have simpler code.
Add tests.
Change-Id: Ic65fa766328ae2e5974b2084bc2099e19aced731
Reviewed-on: https://skia-review.googlesource.com/6157
Reviewed-by: Matt Sarett <msarett@google.com>
Commit-Queue: Leon Scroggins <scroggo@google.com>
