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iidx: detect ldj/tdj I/O mismatch (#470)

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## 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)
This commit is contained in:
bicarus-dev
2025-12-22 18:52:37 -08:00
committed by GitHub
parent 462a07680b
commit 4c8d4ebab6
5 changed files with 68 additions and 5 deletions
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src/spice2x/games/iidx/bi2x_hook.cpp
+5
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@@ -120,6 +120,11 @@ namespace games::iidx {
static AIO_IOB2_BI2X_TDJ* __fastcall aioIob2Bi2xTDJ_Create(AIO_NMGR_IOB2 *nmgr, int a2) {
if (!BI2X_PASSTHROUGH) {
log_info("bi2x_hook", "aioIob2Bi2xTDJ_Create called (TDJ I/O emulation active)");
games::iidx::update_io_emulation_state(
games::iidx::iidx_aio_emulation_state::bi2x_hook);
custom_node = new AIO_IOB2_BI2X_TDJ;
memset(&custom_node->data, 0, sizeof(custom_node->data));