PFND3D11_1DDI_RESOURCECOPYREGION - NtDoc

Native API online documentation, based on the System Informer (formerly Process Hacker) phnt headers 
// d3d10umddi.h

PFND3D11_1DDI_RESOURCECOPYREGION Pfnd3d111DdiResourcecopyregion;

VOID Pfnd3d111DdiResourcecopyregion(
       D3D10DDI_HDEVICE unnamedParam1,
       D3D10DDI_HRESOURCE unnamedParam2,
       UINT unnamedParam3,
       UINT unnamedParam4,
       UINT unnamedParam5,
       UINT unnamedParam6,
       D3D10DDI_HRESOURCE unnamedParam7,
       UINT unnamedParam8,
       const D3D10_DDI_BOX *unnamedParam9,
  [in] UINT CopyFlags
)
{...}
View the official Windows Driver Kit DDI reference

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Windows Driver Kit DDI reference (nc-d3d10umddi-pfnd3d11_1ddi_resourcecopyregion)

PFND3D11_1DDI_RESOURCECOPYREGION callback function

Description

Copies a source subresource region to a location on a destination subresource.

Parameters

unnamedParam1

hDevice [in]

A handle to the display device (graphics context).

unnamedParam2

hDstResource [in]

A handle to the destination resource to copy to.

unnamedParam3

DstSubresource [in]

An index that indicates the destination subresource to copy to.

unnamedParam4

DstX [in]

The x-coordinate of the destination subresource.

unnamedParam5

DstY [in]

The y-coordinate of the destination subresource. For one-dimensional (1-D) subresources, DstY is set to zero.

unnamedParam6

DstZ [in]

The z-coordinate of the destination subresource. For one-dimensional (1-D) and two-dimensional (2-D) subresources, DstZ is set to zero.

unnamedParam7

hSrcResource [in]

A handle to the source resource to copy from.

unnamedParam8

SrcSubresource [in]

An index that indicates the source subresource to copy from.

unnamedParam9

pSrcBox [in, optional]

A pointer to a D3D10_DDI_BOX structure that specifies a box that fits on either the source or destination subresource. If pSrcBox is NULL, the driver should copy the entire source subresource to the destination.

If the members of the D3D10_DDI_BOX structure are such that left>=right, top>=bottom, or front>=back, then pSrcBox is considered empty, and ResourceCopyRegion(D3D11_1) must not perform any copy operation.

CopyFlags [in]

A value that specifies characteristics of copy operation as a bitwise OR of the values in the D3D11_1_DDI_COPY_FLAGS enumeration type.

Remarks

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

The Microsoft Direct3D runtime calls the user-mode display driver's ResourceCopyRegion(D3D11_1) function to inform the driver to copy from the specified source subresource region to a location on the specified destination subresource. The source and destination subresources can be the same subresource of the same resource. Both source and destination resources must be the same type of resource and must have format types (DXGI_FORMAT-typed values) that are convertible to each other.

For buffers, all the coordinates must be in bytes; whereas for textures, all the coordinates must be in pixels. The box that the pSrcBox parameter points to must not extend over the edges of the source subresource region or the destination subresource. The source and the destination resource must not be currently mapped. In addition, the resource creation flags restrict whether the resource can participate in the copy operation.

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 (which typically should not happen), the driver can return D3DDDIERR_DEVICEREMOVED.

The driver can implement a ResourceCopyRegion(D3D11_1) function that can contain a switch statement to process copying and conversion. That is, the driver can implement one ResourceCopyRegion(D3D11_1) and can set the pfnResourceConvertRegion member of the D3D11_1DDI_DEVICEFUNCS structure to point to ResourceCopyRegion(D3D11_1) along with the pfnResourceCopyRegion member of D3D11_1DDI_DEVICEFUNCS. However, to improve performance, the driver can implement separate ResourceCopyRegion(D3D11_1) and ResourceConvertRegion(D3D11_1) functions.

The following sections list conditions for copying and converting:

Copying

For copying, ResourceCopyRegion(D3D11_1) ensures that the source and destination resources were created through the driver's CreateResource(D3D11) function with the following conditions:

ResourceCopyRegion(D3D11_1) does not ensure that the source box that is offset by the destination offsets fits entirely on the resource. ResourceCopyRegion(D3D11_1) also does not ensure that no subresources are currently mapped.

Converting

For conversion, ResourceCopyRegion(D3D11_1) ensures that the source and destination resources were created through the driver's CreateResource(D3D11) function with the following conditions:

ResourceCopyRegion(D3D11_1) does not ensure that no subresources are currently mapped. ResourceCopyRegion(D3D11_1) also does not ensure that the source box that is offset by the destination offsets fits entirely on the resource.

See also

CreateResource(D3D11)

D3D10_DDI_BOX

D3D11DDIARG_CREATERESOURCE

D3D11_1DDI_DEVICEFUNCS

D3D11_1_DDI_COPY_FLAGS

pfnSetErrorCb

View the official Windows Driver Kit DDI reference

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