Nov. 21, 2013
7:48 p.m.
Le 21/11/2013 16:44, Igor Stasenko a écrit :
Except that while adopting cairo surfaces i also has odd transparency issues until i realized that cairo surface stores pixel data using premultiplied alpha format,e.g.:
pixelColor = (R*A, G*A, B*A, A)
while bitblt assumes it is (R,G,B,A)
Should not be related, right? Hilaire -- Dr. Geo http://drgeo.eu