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VideoProcessorSetStreamPalette function

Sets the color-palette entries for an input stream on the video processor.

Syntax


VOID APIENTRY* VideoProcessorSetStreamPalette(
  _In_  D3D10DDI_HDEVICE hDevice,
  _In_  D3D11_1DDI_HVIDEOPROCESSOR hVideoProcessor,
  _In_  UINT StreamIndex,
  _In_  UINT Count,
  _In_  const UINT *pEntries
);

Parameters

hDevice [in]

A handle to the display device (graphics context).

hVideoProcessor [in]

A handle to the video processor object that was created through a call to the CreateVideoProcessor function.

StreamIndex [in]

The zero-based index of the input stream.

Count [in]

The number of elements in the array that is referenced by the pEntries parameter.

pEntries [in]

A pointer to an array of palette entries. For RGB streams, the palette entries are specified in the DXGI_FORMAT_B8G8R8A8 format. For YCbCr streams, the palette entries are specified in the DXGI_FORMAT_AYUV format.

Return value

This function does not return a value.

Remarks

The VideoProcessorSetStreamPalette function is called only for input streams that have a palettized color format. Palettized formats with 4 bits per pixel (bpp) use the first 16 entries in the list. Formats with 8 bpp use the first 256 entries.

If a pixel has a palette index greater than the number of entries, the device treats the pixel as white with opaque alpha. For full-range RGB, this value is (255, 255, 255, 255); for YCbCr the value is (255, 235, 128, 128).

The driver reports its ability to support palettized color formats in the D3D11_1DDI_VIDEO_PROCESSOR_CAPS structure that is returned through the GetVideoProcessorCaps function. If the driver supports the D3D11_1DDI_VIDEO_PROCESSOR_FEATURE_CAPS_ALPHA_PALETTE capability, it can be configured with color-palette entries for an input stream.

Note  If the driver does not support the D3D11_1DDI_VIDEO_PROCESSOR_FEATURE_CAPS_ALPHA_PALETTE capability, the Microsoft Direct3D runtime does not call the VideoProcessorSetOutputStereoMode function.

If the driver does not report the D3D11_1DDI_VIDEO_PROCESSOR_FEATURE_CAPS_ALPHA_PALETTE capability, every palette entry must have an alpha value of 0xFF (opaque).

Requirements

Minimum supported client

Windows 8

Minimum supported server

Windows Server 2012

Header

D3d10umddi.h (include D3d10umddi.h)

See also

CreateVideoProcessor
D3D11_1DDI_VIDEO_PROCESSOR_CAPS
GetVideoProcessorCaps

 

 

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