[Scummvm-devel] Mac OS X Problems in gsoc2009-16bit Branch

[Matthew Hoops]

Hi Jody, all,

Currently in the gsoc2009-16bit branch, the "best" PixelFormat is
chosen by creating a PixelFormat using parameters taken from
_hwscreen->format. However, on Mac OS X (RGB565), I'm getting
_hwscreen->format->Aloss and Ashift to be equal to 0. Since the
PixelFormat the screen uses has the same *loss and *shift values as
_hwscreen, the aLoss remains 0 which results in the alpha bleeding
into the blue (bShift == 0) and turns whatever I copy to the screen
very blueish. The easiest way to fix the problem for me was set aLoss
to be equal to 8. However, this probably won't work for all systems.

I had thought of something like this:

if (format.bShift == format.aShift && format.aLoss == 0)
    format.aLoss = 8;

(where format is the PixelFormat)

-Matt