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D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020 enumeration (d3d12umddi.h)

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Contains values for alpha fill modes.

Syntax

typedef enum D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020 {
  D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_OPAQUE,
  D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_BACKGROUND,
  D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_DESTINATION,
  D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_SOURCE_STREAM
} ;

Constants

 
D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_OPAQUE
Alpha values inside the target rectangle are set to opaque.
D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_BACKGROUND
Alpha values inside the target rectangle are set to the alpha value specified in the background color.
D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_DESTINATION
Existing alpha values remain unchanged in the output surface.
D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_0020_SOURCE_STREAM
Alpha values are taken from an input stream, scaled, and copied to the corresponding destination rectangle for that stream. The input stream is specified in the AlphaFillModeSourceStreamIndex member of the D3D12DDI_VIDEO_PROCESS_OUTPUT_STREAM_DESC structure. If the input stream does not have alpha data, the video processor sets the alpha values in the target rectangle to opaque. If the input stream is disabled or the source rectangle is empty, the alpha values in the target rectangle are not modified.

Remarks

The alpha fill mode is used in D3D12DDIARG_VIDEO_PROCESS_OUTPUT_STREAM_ARGUMENTS. The D3D12DDI_VIDEO_PROCESS_ALPHA_FILL_MODE_OPAQUE flag is always supported. The background, destination, and source stream modes are only supported when the driver reports D3D12DDI_VIDEO_PROCESS_FEATURE_SUPPORT_FLAG_ALPHA_FILL.

Requirements

Requirement Value
Header d3d12umddi.h (include D3d12umddi.h)