// d3d12umddi.h

typedef struct D3D12DDI_VIDEO_PROCESS_FILTER_RANGE_0020 {
  INT   Minimum;
  INT   Maximum;
  INT   Default;
  FLOAT Multiplier;
} D3D12DDI_VIDEO_PROCESS_FILTER_RANGE_0020;
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (ns-d3d12umddi-d3d12ddi_video_process_filter_range_0020)

D3D12DDI_VIDEO_PROCESS_FILTER_RANGE_0020 structure

Description

Defines the range of supported values for an image filter.

Members

`Minimum`

The minimum value of the filter.

`Maximum`

The maximum value of the filter.

`Default`

The default value of the filter.

`Multiplier`

A multiplier. Use this formula to translate the filter setting into the actual filter value: Actual Value = Set Value × Multiplier.

Remarks

The multiplier enables the filter range to have a fractional step value. For example, a hue filter might have an actual range of [–180.0 ... +180.0] with a step size of 0.25. The device would report the following range and multiplier:

Minimum: –720
Maximum: +720
Multiplier: 0.25

In this case, a filter value of 2 would be interpreted by the device as 0.50, which is 2 × 0.25.

The device should use a multiplier that can be represented exactly as a base-2 fraction.

View the official Windows Driver Kit DDI reference

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