1923ff0222
the TIFFGetField() return for TIFFTAG_EXTRASAMPLES is defined as (count, types array) [1]. previously the count was being checked rather than the first element of the array to determine whether the alpha was associated (pre-multiplied) and the result needed to be unmultiplied. since: 9273e441 fix TIFF encoder regarding rgbA/RGBA [1] http://www.libtiff.org/man/TIFFSetField.3t.html Change-Id: I6e41be9d038fe8afb6d0aa3c8048925dc901113b