Performance profiling showed that multiple strcmpi() calls were
occurring each and every time a character was going to the map.
This update:
- honors the WC_COLOR capability
- It allows a window-port to control individual color availability should the window-port wish to do so.
- Makes checking on the individual colors for the active window-port is a straightforward table lookup at the CLR_ offset.
iflags.use_color remains a master on/off switch for use of color, regardless of the capability
compiled into the game (default TRUE).
The has_color() routine, which is now a shared routine in src/windows.c, could likely be made
into a simple macro to eliminate the function call, but this update does not go that far.
This hits a lot of port files due to the window-port interface change, mostly cookie-cutter.
the return value from condition_size() was unused so
eliminate an unused variable warning and rename the function
to better reflect that it updates tty_status[NOW][BL_CONDITION].lth
Another part of github issue 227. Casting a function pointer when
passing it to another function is iffy when lying about the return
type. tputs() expects a routine which returns int, so give it one.
Other xputc() usage is equivalent to putchar(), so define xputc()
with the same function signature as that has.
The tputs() declarations in system.h should probably be changed
(third argument is a function which takes an int rather than
unspecified parameters) but I've left them alone. I made that change
to tputs() in sys/share/tclib.c though.
NT and MSDOS changes are untested. tclib.c compiles ok with clang-
as-gcc on OSX but hasn't been tested with the port that uses it (VMS).
When we were saving message history as part of a game save for insurance,
we were calling remember_topl() and thus inappropriately changing topline
state. This would cause us to mis-manage the topline in subsequent calls
to update the topline.
The code has been re-worked to fix the issue, reduce complexity and make
the code clearer.
When we save gamestate as part of making an insurance snapshot, we will
save message history which will clear toplines but leaving window state
in tack including the need for more.
When fuzzing, we would increment ttyDisplay->inmore but then prematurely
exit more() leaving ttyDisplay->inmore set.
Under various conditions, we can request to remember the topline when
the topline had not yet been acknowledged leaving toplin state in an
inappropriate state.
