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[Kernel] - adjusting XAMEnumerate buffer size to fix Angry Birds and Resonance of Fate - thanks Gliniak

This commit is contained in:
Cancerous 2019-12-05 09:33:30 -05:00
parent ef40f11b38
commit c6ad40723b
1 changed files with 16 additions and 11 deletions
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27
src/xenia/kernel/xam/xam_info.cc
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@ -361,18 +361,23 @@ dword_result_t XamEnumerate(dword_t handle, dword_t flags, lpvoid_t buffer,
}
}
size_t actual_buffer_length = (uint32_t)buffer_length;
if (buffer_length == e->items_per_enumerate()) {
actual_buffer_length = e->item_size() * e->items_per_enumerate();
// Known culprits:
// Final Fight: Double Impact (saves)
XELOGW(
"Broken usage of XamEnumerate! buffer length=%.X vs actual length=%.X "
"(item size=%.X, items per enumerate=%u)",
(uint32_t)buffer_length, actual_buffer_length, e->item_size(),
e->items_per_enumerate());
}
// size_t actual_buffer_length = (uint32_t)buffer_length;
// if (buffer_length == e->items_per_enumerate()) {
// // Known culprits:
// // Final Fight: Double Impact (saves)
// XELOGW(
// "Broken usage of XamEnumerate! buffer length=%.X vs actual length=%.X "
// "(item size=%.X, items per enumerate=%u)",
// (uint32_t)buffer_length, actual_buffer_length, e->item_size(),
// e->items_per_enumerate());
// actual_buffer_length = e->item_size() * e->items_per_enumerate();
// }
// leaving old method commented for now until more widely tested
// Don't trust buffer_length. It might be invalid (Based on "Resonance of fate")
// also fixes "Angry Birds" - Thanks Gliniak
size_t actual_buffer_length = e->item_count() * e->item_size();
buffer.Zero(actual_buffer_length);
X_RESULT result;