// d3dkmddi.h

typedef struct _DXGK_MULTIPLANE_OVERLAY_VSYNC_INFO3 {
  DWORD LayerIndex;
  ULONG FirstFreeFlipQueueLogEntryIndex;
} DXGK_MULTIPLANE_OVERLAY_VSYNC_INFO3;
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Windows Driver Kit DDI reference (ns-d3dkmddi-dxgk_multiplane_overlay_vsync_info3)

Description

The display miniport driver uses DXGK_MULTIPLANE_OVERLAY_VSYNC_INFO3 to report per-plane flip completion after a Vsync.

Members

`LayerIndex`

The zero-based index of the overlay plane to display. The top plane (in the z-direction) has index zero. The planes' index values must be sequential from top to bottom.

`FirstFreeFlipQueueLogEntryIndex`

The index after the last written entry in the flip queue log buffer.

Remarks

DXGK_MULTIPLANE_OVERLAY_VSYNC_INFO3 is a member of the DXGKARGCB_NOTIFY_INTERRUPT_DATA structure. It is filled out by the driver to report each plane’s flip completion after a Vsync occurs in the hardware flip queue model. It should be filled out when the display adapter generates an interrupt after a Vsync.

DXGK_MULTIPLANE_OVERLAY_VSYNC_INFO3 - NtDoc