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

[Johannes Schickel]

Max Horn wrote:
> Indeed, that needs to be done in any case. In addition, we should add  
> a "PixelFormat::validate()" method which performs some extra checks to  
> ensure that a given PixelFormat makes sense -- e.g. verify that the  
> various components do not overlap (which is easy to do -- just compute  
> the bitmasks for each, and then AND them pairwise, if the result is  
> not 0 you overlap).
>   

That makes me wonder, our current way to determine the overlay format, 
uses the same method. So far it worked fine, that may be because SDL 
always makes the Aloss 8 there, since the Amask we pass is zero. I guess 
we might think of adding some paranoia check for that too.

// Johannes