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DXGK_FLIPQUEUE_LOG_ENTRY structure (d3dkmddi.h)

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In the hardware flip queue model, the DXGK_FLIPQUEUE_LOG_ENTRY structure contains a single flip queue log entry for a completed or cancelled flip.

Syntax

typedef struct _DXGK_FLIPQUEUE_LOG_ENTRY {
  ULONGLONG PresentId;
  ULONGLONG PresentTimestamp;
} DXGK_FLIPQUEUE_LOG_ENTRY;

Members

PresentId

[in] Identifies the completed or cancelled flip.

PresentTimestamp

[in] Time stamp of the flip. This value is specified in CPU clock counter units (obtained from obtained from KeQueryPerformanceCounter). PresentTimestamp can be one of the following values:

Value Meaning
DXGK_HWFLIPQUEUE_TIMESTAMP_CANCELLED The flip was cancelled and contents were never displayed on the screen.
Value > 0 The time stamp when the flip started being visible on the screen; that is, the scanout's start time.

Remarks

The DXGKARG_SETFLIPQUEUELOGBUFFER structure contains a pointer to an array of DXGK_FLIPQUEUE_LOG_ENTRY structures.

Requirements

Requirement Value
Minimum supported client Windows 11 (WDDM 3.0)
Header d3dkmddi.h

See also

DXGKARG_SETFLIPQUEUELOGBUFFER

DXGKDDI_SETFLIPQUEUELOGBUFFER