tree d9372946fd35414432add18292fa90d3f2e19788
parent a65240d1c148599e431bf2f0892dfaa507e73ae6
author Wim Taymans <wim.taymans@collabora.co.uk> 1261691431 +0100
committer Wim Taymans <wim@metal.(none)> 1261691431 +0100

alpha: scale and clamp alpha to its full extend

Convert the alpha value to 0->255 when setting and to 0->256 when using as
a scaling factor. This makes sure we can reach the full opacity value of 0xff in
all cases.