D3DKMTSignalSynchronizationObjectFromCpu - NtDoc
Native API online documentation, based on the System Informer
(formerly Process Hacker) phnt
headers
// d3dkmthk.h
NTSTATUS D3DKMTSignalSynchronizationObjectFromCpu(
[in] const D3DKMT_SIGNALSYNCHRONIZATIONOBJECTFROMCPU *unnamedParam1
);
View the official Windows Driver Kit DDI referenceNo description available.
D3DKMTSignalSynchronizationObjectFromCpu enables a driver to signal a monitored fence.
unnamedParam1 [in]A pointer to a D3DKMT_SIGNALSYNCHRONIZATIONOBJECTFROMCPU structure that provides the details of the requested operation..
D3DKMTSignalSynchronizationObjectFromCpu returns one of the following values:
| Return code | Description |
|---|---|
| STATUS_SUCCESS | The operation was successful. |
This function might also return other NTSTATUS values.
When a monitored fence object is signaled by the CPU, the graphics kernel will update the fence memory location with the signaled value, so it becomes immediately visible to any user mode reader as well as immediately un-wait any satisfied waiters. However, the caller cannot assume that the signal operation will be completed upon the return from this function. Instead, the caller should use appropriate wait functions to check for signal completion.
[!NOTE] A signal from a graphics processing unit (GPU) call is not provided. Instead, a driver can signal a new fence value by inserting a GPU write command for FenceValueGPUVirtualAddress into a command buffer.
D3DKMT_SIGNALSYNCHRONIZATIONOBJECTFROMCPU