xrConvertWin32PerformanceCounterToTimeKHR(3)

C Specification

To convert from Win32 QueryPerformanceCounter time to basetype::XrTime, call:

XrResult xrConvertWin32PerformanceCounterToTimeKHR(
    XrInstance                                  instance,
    const LARGE_INTEGER*                        performanceCounter,
    XrTime*                                     time);

Parameters

Parameter Descriptions

instance is an XrInstance handle previously created with xrCreateInstance.
performanceCounter is a time returned by QueryPerformanceCounter.
time is the resulting basetpe::XrTime that is equivalent to the performanceCounter.

Description

The xrConvertWin32PerformanceCounterToTimeKHR function converts a time obtained by the Win32 QueryPerformanceCounter function to the equivalent basetype::XrTime.

Valid Usage (Implicit)

The [XR_KHR_win32_convert_performance_counter_time] extension must be enabled prior to calling xrConvertWin32PerformanceCounterToTimeKHR
instance must be a valid XrInstance handle
performanceCounter must be a pointer to a valid LARGE_INTEGER value
time must be a pointer to an XrTime value

Return Codes

On success, this command returns

XR_SUCCESS

On failure, this command returns

XR_ERROR_HANDLE_INVALID
XR_ERROR_INSTANCE_LOST
XR_ERROR_RUNTIME_FAILURE
XR_ERROR_VALIDATION_FAILURE

See Also

XrInstance, XrTime

Document Notes

For more information, see the OpenXR Specification at URL

https://www.khronos.org/registry/openxr/specs/1.0-extensions/html/xrspec.html#xrConvertWin32PerformanceCounterToTimeKHR

This page is extracted from the OpenXR Specification. Fixes and changes should be made to the Specification, not directly.

Copyright

Copyright (c) 2014-2019 Khronos Group. This work is licensed under a Creative Commons Attribution 4.0 International License.