## Link to GitHub Issue, if one exists
see my previous attempt #496, which has been reverted by #500
## Description of change
Two issues:
1. the original implementation of bi2x_hook for iidx misunderstood what
`aioNMgrIob2_Create` does. In the original I/O code it returns a pointer
to a C++ class instance, which would also have a vptr (pointer to a
vtable) in the beginning. The original author of this code of the hook
in spice thought that `aioNMgrIob2_Create` returns a pointer to a
pointer. This may happen to work but it's not 100% accurate, so this has
been fixed by separating out the class and the vtable allocation.
Without this, the game could have accessed memory outside this buffer.
2. And then the SDVX implementation blindly copy-pasted the IIDX
`bi2x_hook`. Along with the issue above, they also forgot to check the
I/O DLLs to see how much memory needs to be allocated and change that.
Instead, they kept the same value as IIDX, which was too small. Fix that
as well.
## Testing
Doing some extensive testing with IIDX (27-33) and SDVX versions (EG).
## Link to GitHub Issue, if one exists
n/a
## Description of change
Both games take the address returned by `aioNMgrIob2_Create` and reads
values offset from that address as part of the I/O routine. This means
that the I/O routines of these games have been accessing random
variables in data/bss segments for years, they just happened to get a
value that doesn't lead to a crash.
Stumbled upon this while trying to add a new feature that required
adding more globals, but suddenly the game stopped polling I/O when I
changed a value of my global. Scary.
## Testing
Tested both games I/O
## Link to GitHub Issue, if one exists
#345
## Description of change
For IIDX31+, detect if BI2A or BI2X I/O emulation becomes active, and
see if there is a mismatch between the -iidxtdj setting.
Right now a mismatch results in warning in log + deferred error log, but
in the future we could turn this into a fatal error and crash the game
to make it more obvious.
## Testing
Tested 4 combinations:
1. DLL in LDJ mode + -iidxtdj off (pass)
2. DLL in LDJ mode + -iidxtdj on (error)
3. DLL in TDJ mode + -iidxtdj off (error)
4. DLL in TDJ mode + -iidxtdj on (pass)
## Link to GitHub Issue, if one exists
#41 (partially)
## Description of change
This PR adds support for outputting IIDX tape LED data via spiceapi
(`iidx_tapeled_get()`). It returns the data as a `dict`, with the key
being the LED name and the value being the list of RGB values. You can
optionally pass in a variadic list of names to filter the returned data.
The new API function is only implemented in Python since I'm not able to
test the wrappers in other languages.
An example script using the new API is available in this Beef Board PR:
https://github.com/HWXLR8/beef-board/pull/133.
Demo use case: https://streamable.com/pq5e1e
## Testing
Tested in IIDX 32 with custom Beef Board firmware along with a Python
script to read and send the tape LED data over USB.
bicarus