for drivers that used GFX_RAW support for 4bpp systems, and yet
we had a bunch of extra code to support it. Updated these drivers
to do without it and removed all the extra code for supporting
it.
functions and just inline mapped them to the class. Will do
a pass soon to actually update drivers to use the C++
methods directly. Also, the tilemap callbacks are now
delegates which should make for cleaner integrating into
modern devices and drivers going forward.
- Converted AI / VI / MI / RI / SI / PI into a modernized device
- PI DMA now takes place after an appropriate delay to simulate transfer time
- SP DMA no longer rejects transfers of 0 bytes (should transfer one 8-byte word)
allocates a given bitmap to match the screen size and resizes
it as appropriate when the screen size changes. Updated all
the obvious spots in the code where this could be leveraged.
Move allocate/resize methods in the bitmap classes down into
bitmap_t because they no longer have any dependency on the
bitmap format or type.
Ensured that the bitmap's palette remains set across a resize
call (it is lost doing an allocate).
strictly by the type. Also added code to more aggressively align
the bitmap base and rowbytes, and create a resize method which
attempts to re-use existing memory rather than always
reallocating.
test driver that (ab)uses the core to single step a CPU executing
arbitrary instructions and capturing before/after state and
tracking memory. Currently this driver is always compiled, but is
not referenced in mame.lst.
Also updated and modernized the dummy empty driver.
at the start or end of VBLANK depending on the video flag
VIDEO_UPDATE_AFTER_VBLANK. Replaced with SCREEN_VBLANK
callbacks which are called both at the start and end of
VBLANK, so you can operate either way, and be explicit
about it. Updated all callers.
Also updated screen_device to use device timers and some
other minor cleanups.
device_delegate which wraps a regular delegate and includes
a string pointer to a device tag, which can be simply
resolved later. Converted the screen_update delegates to
to be based on this. Changed the mechanism by which screen
formats are auto-deduced. Converted SCREEN_EOF to use these
delegates as well, so now there is MCFG_SCREEN_EOF_STATIC/
DRIVER/DEVICE just like MCFG_SCREEN_UPDATE.
