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[idd] stop using IddCxMonitorUpdateModes(2)

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While it would make much more sense to use these then a full replug to
change modes, Microsoft have not properly implemented the API to clear
the cached monitor mode states internally, making these calls useless.

Revert to just replugging the device on mode change
This commit is contained in:
Geoffrey McRae
2026-07-16 16:31:53 +10:00
parent b97a0b79f1
commit 1ce446f97a
10 changed files with 165 additions and 233 deletions
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4
idd/LGIdd/CIndirectMonitorContext.h
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@@ -35,6 +35,10 @@ class CIndirectMonitorContext
private:
IDDCX_MONITOR m_monitor;
// Guards the swap chain and device pointers. Assign and unassign can run
// concurrently (an unassign triggered by the worker's WdfObjectDelete can
// race the next assign), and shared_ptr copy/reset is not thread safe.
SRWLOCK m_lock = SRWLOCK_INIT;
std::shared_ptr<CD3D11Device> m_dx11Device;
std::shared_ptr<CD3D12Device> m_dx12Device;