[Kernel/XMP] Add title-specific file I/O hooks for XMP volume sync
Some games persist BGM volume through their own save files but never call XMPSetVolume. Add a TitlePatch system that intercepts NtReadFile/ NtWriteFile to apply game-specific logic as well as logic to identify the memory location that the volume data is read into and monitor that memory location for changes, updating XMP player volume if it changes during gameplay. Includes patches for known games with this issue: Dead or Alive Xtreme 2 (544307D2), PGR4 (4D5307F9) and PGR3 (4D5307D1)
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@@ -407,6 +407,9 @@ void KernelState::SetExecutableModule(object_ref<UserModule> module) {
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xboxkrnl::XboxkrnlModule::kExLoadedCommandLineSize);
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}
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// Initialize file I/O hooks for XMP volume title-specific patches.
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InitXmpVolumePatch();
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// Spin up deferred dispatch worker.
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// TODO(benvanik): move someplace more appropriate (out of ctor, but around
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// here).
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@@ -738,8 +741,13 @@ void KernelState::UnloadUserModule(const object_ref<UserModule>& module,
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object_table()->ReleaseHandleInLock(module->handle());
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}
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void KernelState::InitXmpVolumePatch() {
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xmp_volume_patch_ = XmpVolumePatch::CreateForTitle(title_id(), this);
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}
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void KernelState::TerminateTitle() {
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XELOGD("KernelState::TerminateTitle");
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xmp_volume_patch_.reset();
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auto global_lock = global_critical_region_.Acquire();
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// Call terminate routines.
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