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ddr: tweaks to mdxf i/o (#464)

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## Link to GitHub Issue, if one exists
#452

## Description of change
* Split the MDXF I/O option into three: auto, thread, and backfill.
`auto` is the same as what `thread` used to be before this change (based
on I/O poll rate), but `thread` now always forces thread poll mode.
`auto` is the default (behavior wise, same as before)
* For the poll rate measurement, start polling after 20s mark to avoid
frame drops during game boot
* Minor code clean up

## Testing
manual test in windowed + full screen
This commit is contained in:
bicarus-dev
2025-12-20 01:37:56 -08:00
committed by GitHub
parent c38f42cb19
commit fbc8bc2502
4 changed files with 78 additions and 32 deletions
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src/spice2x/launcher/launcher.cpp
+2 -3
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@@ -1152,11 +1152,10 @@ int main_implementation(int argc, char *argv[]) {
}
if (options[launcher::Options::DDRP4IOBufferMode].is_active()) {
if (options[launcher::Options::DDRP4IOBufferMode].value_text() == "thread") {
acio::MDXF_BUFFER_FILL_MODE = acio::THREAD_MODE;
acio::MDXF_BUFFER_FILL_MODE = acio::MDXFBufferFillMode::THREAD_MODE;
} else if (options[launcher::Options::DDRP4IOBufferMode].value_text() == "backfill") {
acio::MDXF_BUFFER_FILL_MODE = acio::BACKFILL_MODE;
acio::MDXF_BUFFER_FILL_MODE = acio::MDXFBufferFillMode::BACKFILL_MODE;
}
// else - default (no value)
}
if (options[launcher::Options::MidiAlgoVer].is_active()) {