D3DDDI_SYNCHRONIZATIONOBJECTINFO2 structure (d3dukmdt.h)

Article
10/23/2024

The D3DDDI_SYNCHRONIZATIONOBJECTINFO2 structure contains information about a second-generation synchronization object.

Syntax

typedef struct _D3DDDI_SYNCHRONIZATIONOBJECTINFO2 {
  D3DDDI_SYNCHRONIZATIONOBJECT_TYPE  Type;
  D3DDDI_SYNCHRONIZATIONOBJECT_FLAGS Flags;
  union {
    struct {
      BOOL InitialState;
    } SynchronizationMutex;
    struct {
      UINT MaxCount;
      UINT InitialCount;
    } Semaphore;
    struct {
      D3DKMT_ALIGN64 UINT64 FenceValue;
    } Fence;
    struct {
      HANDLE Event;
    } CPUNotification;
    struct {
      D3DKMT_ALIGN64 UINT64                 InitialFenceValue;
      VOID                                  *FenceValueCPUVirtualAddress;
      D3DKMT_ALIGN64 D3DGPU_VIRTUAL_ADDRESS FenceValueGPUVirtualAddress;
      UINT                                  EngineAffinity;
      UINT                                  Padding;
    } MonitoredFence;
    struct {
      D3DKMT_HANDLE                         hAdapter;
      D3DDDI_VIDEO_PRESENT_TARGET_ID        VidPnTargetId;
      D3DKMT_ALIGN64 UINT64                 Time;
      VOID                                  *FenceValueCPUVirtualAddress;
      D3DKMT_ALIGN64 D3DGPU_VIRTUAL_ADDRESS FenceValueGPUVirtualAddress;
      UINT                                  EngineAffinity;
      UINT                                  Padding;
    } PeriodicMonitoredFence;
    struct {
      D3DKMT_ALIGN64 UINT64 Reserved[8];
    } Reserved;
  };
  D3DKMT_HANDLE                      SharedHandle;
} D3DDDI_SYNCHRONIZATIONOBJECTINFO2;

Members

Type

[in] A value of type D3DDDI_SYNCHRONIZATIONOBJECT_TYPE that indicates the type of synchronization object.

Flags

[in] A D3DDDI_SYNCHRONIZATIONOBJECT_FLAGS structure that specifies, in bit-field flags, attributes of the synchronization object.

SynchronizationMutex

A structure that contains information about a synchronization mutex. If the Type member is equal to D3DDDI_SYNCHRONIZATION_MUTEX, the union in D3DDDI_SYNCHRONIZATIONOBJECTINFO2 holds a SynchronizationMutex structure.

SynchronizationMutex.InitialState

A Boolean value that indicates whether the synchronization mutex is initially owned by an object. A value of TRUE indicates that the mutex is owned; FALSE indicates that the mutex is not owned.

Semaphore

A structure that contains information about a semaphore. If the Type member is equal to D3DDDI_SEMAPHORE, the union in D3DDDI_SYNCHRONIZATIONOBJECTINFO2 holds a Semaphore structure.

Semaphore.MaxCount

The maximum number of events that an object can be waiting for.

Semaphore.InitialCount

The initial number of events that an object is waiting for.

Fence

A structure that contains information about a fence. If the Type member is equal to D3DDDI_FENCE, the union in D3DDDI_SYNCHRONIZATIONOBJECTINFO2 holds a Fence structure.

Fence.FenceValue

A 64-bit value that specifies the initial fence value.

CPUNotification

A structure that contains information about a CPU notification. If the Type member is equal to D3DDDI_CPU_NOTIFICATION, the union in D3DDDI_SYNCHRONIZATIONOBJECTINFO2 holds a CPUNotification structure.

CPUNotification.Event

The handle to the CPU notification event.

MonitoredFence

A structure that contains information about a monitored fence. If the Type member is equal to D3DDDI_MONITORED_FENCE, the union in D3DDDI_SYNCHRONIZATIONOBJECTINFO2 holds a MonitoredFence structure.

Monitored fences can be shared only by using NT handles for security reasons, so the NtSecuritySharing flag must be set when using a monitored fence.