James Zern a1ade40ed8 PreprocessARGB: use relative pointer offsets
avoids int rollover when working with large input

BUG=webp:312

Change-Id: I2881bec2884b550c966108beeff1bf0d8ef9f76b
(cherry picked from commit 1147ab4ee7ff33c418279944aa17b5a43c6ec706)
2016-11-09 15:24:16 -08:00
..
2015-12-17 19:45:14 -08:00
2016-06-21 16:04:53 +02:00
2016-06-13 18:52:37 -07:00
2016-06-13 19:10:21 -07:00