Simon H. wrote: > By the way: The root of these problems was always, that the PXA display > controller uses a "transaparency" bit instead of an "alpha" bit, for some > strange reason. We had to use the 19bit depth with one transparency bit. I > assume, that you are using the same pixelformat, even if you mentioned > 18bit. As far as i understand the API, you could use ARGB1666 for a > 19bit-with-transparency depth and use the SetAlphaRamp function to inverse > the meaning of the alpha bit: > http://www.directfb.org/docs/DirectFB_Reference_1_0/IDirectFBSurface_SetAlphaRamp.html > > In theory. It didn't work for us (0.9.24 was the version we used).
The rendering functions don't take care of the alpha ramp. It is meant for minor adjustments like with a gamma ramp, but it could be used for more if the application is rendering itself. -- Best regards, Denis Oliver Kropp .------------------------------------------. | DirectFB - Hardware accelerated graphics | | http://www.directfb.org/ | "------------------------------------------" _______________________________________________ directfb-users mailing list directfb-users@directfb.org http://mail.directfb.org/cgi-bin/mailman/listinfo/directfb-users
