PFND3D10DDI_RESOURCEREADAFTERWRITEHAZARD callback function (d3d10umddi.h)

Article
04/01/2021

The ResourceReadAfterWriteHazard function informs the user-mode display driver that the specified resource was used as an output from the graphics processing unit (GPU) and that the resource will be used as an input to the GPU.

Syntax

PFND3D10DDI_RESOURCEREADAFTERWRITEHAZARD Pfnd3d10ddiResourcereadafterwritehazard;

void Pfnd3d10ddiResourcereadafterwritehazard(
  D3D10DDI_HDEVICE unnamedParam1,
  D3D10DDI_HRESOURCE unnamedParam2
)
{...}

Parameters

unnamedParam1

hDevice [in]

A handle to the display device (graphics context).

unnamedParam2

hResource [in]

A handle to the resource.

Return value

None

Remarks

The driver can use the pfnSetErrorCb callback function to set an error code.

The Microsoft Direct3D runtime calls ResourceReadAfterWriteHazard immediately before the specified resource is bound as an input to the GPU.

ResourceReadAfterWriteHazard is used with bind points other than GsSetShaderResources, PsSetShaderResources, and VsSetShaderResources (for example, IaSetIndexBuffer). Because these types of bind points accept only buffers, the entire resource is considered affected by the hazard, and not just a particular view.

The driver should not encounter any error, except for D3DDDIERR_DEVICEREMOVED. Therefore, if the driver passes any error, except for D3DDDIERR_DEVICEREMOVED, in a call to the pfnSetErrorCb function, the Direct3D runtime will determine that the error is critical. Even if the device was removed, the driver is not required to return D3DDDIERR_DEVICEREMOVED; however, if device removal interfered with the operation of ResourceReadAfterWriteHazard (which typically should not happen), the driver can return D3DDDIERR_DEVICEREMOVED.

Requirements

Requirement	Value
Minimum supported client	Available in Windows Vista and later versions of the Windows operating systems.
Target Platform	Desktop
Header	d3d10umddi.h (include D3d10umddi.h)