5 functions:
SACT2.SP_SetDrawMethod
DrawGraph.CopyStretch
DrawGraph.CopyStretchAmap
DrawGraph.CopyReduce
DrawGraph.CopyReduceAmap
SP_SetDrawMethod is not pixel-perfect to System40.exe, but its pretty
close.
I'm not sure what the difference between the Stretch/Reduce functions is
supposed to be. They seem to do the same thing.
Also, the ugly macros in sdl_draw.c are replaced by higher-order
functions.
With this commit, Sengoku Rance runs up to the menu without exiting due
to unimplemented HLL functions.
Implement all of the simple copy functions, with the exception of
DrawGraph.CopyColorReverse, which is undocumented and appears to be dead
code (at least in the version of SACT2 that shipped with the SDK).