tree d53ac822a3eec694d78b6a3c36daa99a4f1e7021
parent 1c4717b54b21bc6c640864caf600ef16496803ec
author Florin Malita <fmalita@chromium.org> 1483552915 -0500
committer Skia Commit-Bot <skia-commit-bot@chromium.org> 1483728094 +0000

Avoid SkFixed overflow in decal bitmap procs

The check for decal mode can overflow in SkFixed.  Promote to
64bit (48.16) instead.

Also update can_truncate_to_fixed_for_decal() to take SkFixed params and
used it in ClampX_ClampY_filter_scale_SSE2().

BUG=chromium:675444
R=reed@google.com

CQ_INCLUDE_TRYBOTS=skia.primary:Test-Ubuntu-GCC-GCE-CPU-AVX2-x86_64-Release-SKNX_NO_SIMD

Change-Id: I759464cdaa5c005159e38e32167fb1937e2a1d28
Reviewed-on: https://skia-review.googlesource.com/6538
Reviewed-by: Cary Clark <caryclark@google.com>
Commit-Queue: Florin Malita <fmalita@chromium.org>