C Specification

The XrFrameState structure is defined as:

typedef struct XrFrameState {
    XrStructureType       type;
    void* XR_MAY_ALIAS    next;
    XrTime                predictedDisplayTime;
    XrDuration            predictedDisplayPeriod;
} XrFrameState;

Members

Member Descriptions

  • type is the XrStructureType of this structure.

  • next is NULL or a pointer to an extension-specific structure.

  • predictedDisplayTime is the anticipated display XrTime for the next application-generated frame.

  • predictedDisplayPeriod is the XrDuration of the display period for the next application-generated frame, for use in predicting display times beyond the next one.

Description

XrFrameState describes the time at which the next frame submitted to xrEndFrame will be displayed to the user. predictedDisplayTime must refer to the midpoint of the interval during which the frame is displayed. The runtime may report a different predictedDisplayPeriod from the hardware’s refresh cycle when interpolating submitted frames.

Valid Usage (Implicit)

  • type must be XR_TYPE_FRAME_STATE

  • next must be NULL

See Also

XrDuration, XrFrameWaitInfo, XrStructureType, XrTime, xrWaitFrame

Document Notes

For more information, see the OpenXR Specification at URL

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

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.