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IDirect3DVideoDevice9::CreateSurface method

  • Стаття

Creates a compressed surface for DirectX Video Acceleration (DXVA) decoding.

To get the surface requirements, call IDirect3DVideoDevice9::GetDXVACompressedBufferInfo and examine the returned DXVACompBufferInfo structures.

Syntax

HRESULT CreateSurface(
   UINT              Width,
   UINT              Height,
   UINT              BackBuffers,
   D3DFORMAT         Format,
   D3DPOOL           Pool,
   DWORD             Usage,
   IDirect3DSurface9 **ppSurface,
   HANDLE            *pSharedHandle
);

Parameters

Width

The width of the surface, in pixels. Set this parameter equal to DXVACompBufferInfo.WidthToCreate.

Height

The height of the surface, in pixels. Set this parameter equal to DXVACompBufferInfo.HeightToCreate.

BackBuffers

The number of back buffers. This parameter can be zero.

Format

The pixel format, specified as a D3DFORMAT value. Set this parameter equal to DXVACompBufferInfo.Format.

Pool

The memory pool in which to create the surface, specified as a D3DPOOL value. Set this parameter equal to DXVACompBufferInfo.Pool.

Usage

A bitwise OR of one or more D3DUSAGE constants. Set this parameter equal to DXVACompBufferInfo.Usage.

ppSurface

Receives a pointer to the IDirect3DSurface9 interface. The caller must release the interface.

pSharedHandle

Reserved. Set to NULL.

Return value

If this method succeeds, it returns S_OK. Otherwise, it returns an HRESULT error code.

Requirements

Requirement Value
Minimum supported client
 Windows Vista [desktop apps only]
Minimum supported server
 Windows Server 2008 [desktop apps only]
Header
Dxva.h

See also

IDirect3DVideoDevice9