This fixes the irregular dark fringes around light text when not exactly pixel-aligned that are caused by independent interpolation of color and alpha. It also makes calculations simpler for things to come.
Two of the big nasties, according to profiling, are the TnL enum and
creation of Direct3D objects. It turned out we were doing these things
several times (3 and 4 respectively) during the init process. So, now we
have an hsGDirect3D namespace and some smart pointers to manage them!
If you have less than 11MB VRAM or need to use the ref implementation,
then you are using a dinosaur and have no business even attempting to play
this game.
We already link against it, so that's just a waste of time. Also, cleanup
some unneeded ddraw includes. Remember that in Direct3D9, all devices can
render in windowed mode.
