With the upcoming `#include` cleanup, it finally makes sense to split
off all graphics-related code into its own header. In turn, it makes
more sense to store all of these future master.lib headers in, well,
the master.lib directory, which provides a new 8 characters for their
file names. Turns out that the rationale I gave for the root directory
placement in 8266bbd didn't hold up 3½ years later…
(Also, the `pc98.h` declarations will eventually be split into
`game/coords.hpp` and something in `platform/x86real/pc98/`.)
Part of P0284, funded by [Anonymous] and Blue Bolt.
The ones we use in `Research/` and for the Anniversary Edition. Better
code generation at the cost of having to explicitly declare `main` as
`__cdecl` so that the linker can find it.
Part of P0002, funded by GhostPhanom.
Unfortunate, but we won't be able to reuse the same .OBJ file once we
compile all pipeline tools with the `pascal` calling convention.
Separately compiling `th01/formats/img_data.cpp` would also turn into a
mess with the upcoming `#include` cleanup:
• `img_data.cpp` requires `ptn.hpp`,
• which will require `egc.h`,
• which requires `defconv.h`,
• which requires `GAME` to be defined,
• which makes no sense for pipeline tools.
Part of P0002, funded by GhostPhanom.
DOS is not the same thing as the underlying CPU, after all. A separate
file not only indicates to future port authors which parts of the code
are x86-specific, but it also speeds up build times…
… in theory, because removing 677 lines from 49 files each doesn't seem
to speed up the build as much as I had hoped? But apparently my whole
system mysteriously got faster in the meantime, and I was getting 22-23
seconds for the entire repo even before this commit. Good enough.
Part of P0134, funded by [Anonymous].
nmlgc