[Ohrrpgce] SVN: teeemcee/12786 rasterizer: heaps of code deduplication and cleanup

[subversion at HamsterRepublic.com]

teeemcee
2022-02-17 21:27:12 -0800 (Thu, 17 Feb 2022)
227
rasterizer: heaps of code deduplication and cleanup

Split a lot of repeated code into functions, and combined the 8-bit and 32-bit
texture paths; cost of the extra jump is neglible, though may prohibit automatic
vectorization.
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U   wip/matrixMath.bi
U   wip/matrixMath.cpp
U   wip/matrixMath.h
U   wip/rasterizer.cpp
U   wip/rasterizer.hpp