James Zern 1147ab4ee7 PreprocessARGB: use relative pointer offsets
avoids int rollover when working with large input

BUG=webp:312

Change-Id: I2881bec2884b550c966108beeff1bf0d8ef9f76b
2016-11-07 17:08:06 -08:00
..
2016-10-05 10:33:29 -07:00
2016-07-19 17:23:17 -07:00