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As you may have seen on allegro.cc I asked some people to test the A5
demo on OS X.
http://www.allegro.cc/forums/thread/597223
There was a problem with font rendering which I tracked down to
a5font_grab_font_from_bitmap. This function copies an input bitmap
then chops out all the glyphs into subbitmaps. What I found was that
the new copy is full of garbage so when the input bitmap is copied
over it, the garbage remains if the input is translucent.
I've solved it by clearing the bitmap first, but, before I commit it,
should the fix instead be that _all_ bitmaps be blanked when they are
created?
Pete