Flags to map or unmap a resource

Flags to register a resource

Map Direct3D resources for access by CUDA.

Parameters

count

- Number of resources in ppResource

ppResource

- Resources to map for CUDA usage

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_ALREADY_MAPPED, CUDA_ERROR_UNKNOWN

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Maps the count Direct3D resources in ppResource for access by CUDA.

The resources in ppResource may be accessed in CUDA kernels until they are unmapped. Direct3D should not access any resources while they are mapped by CUDA. If an application does so the results are undefined.

This function provides the synchronization guarantee that any Direct3D calls issued before cuD3D9MapResources() will complete before any CUDA kernels issued after cuD3D9MapResources() begin.

If any of ppResource have not been registered for use with CUDA or if ppResource contains any duplicate entries, then CUDA_ERROR_INVALID_HANDLE is returned. If any of ppResource are presently mapped for access by CUDA, then CUDA_ERROR_ALREADY_MAPPED is returned.

See also:

cuGraphicsMapResources

Register a Direct3D resource for access by CUDA.

Parameters

pResource

- Resource to register for CUDA access

Flags

- Flags for resource registration

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_OUT_OF_MEMORY, CUDA_ERROR_UNKNOWN

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Registers the Direct3D resource pResource for access by CUDA.

If this call is successful, then the application will be able to map and unmap this resource until it is unregistered through cuD3D9UnregisterResource(). Also on success, this call will increase the internal reference count on pResource. This reference count will be decremented when this resource is unregistered through cuD3D9UnregisterResource().

This call is potentially high-overhead and should not be called every frame in interactive applications.

The type of pResource must be one of the following.

• IDirect3DVertexBuffer9: Cannot be used with Flags set to CU_D3D9_REGISTER_FLAGS_ARRAY.

• IDirect3DIndexBuffer9: Cannot be used with Flags set to CU_D3D9_REGISTER_FLAGS_ARRAY.

• IDirect3DSurface9: Only stand-alone objects of type IDirect3DSurface9 may be explicitly shared. In particular, individual mipmap levels and faces of cube maps may not be registered directly. To access individual surfaces associated with a texture, one must register the base texture object. For restrictions on the Flags parameter, see type IDirect3DBaseTexture9.

• IDirect3DBaseTexture9: When a texture is registered, all surfaces associated with the all mipmap levels of all faces of the texture will be accessible to CUDA.

The Flags argument specifies the mechanism through which CUDA will access the Direct3D resource. The following values are allowed.

• CU_D3D9_REGISTER_FLAGS_NONE: Specifies that CUDA will access this resource through a CUdeviceptr. The pointer, size, and (for textures), pitch for each subresource of this allocation may be queried through cuD3D9ResourceGetMappedPointer(), cuD3D9ResourceGetMappedSize(), and cuD3D9ResourceGetMappedPitch() respectively. This option is valid for all resource types.

• CU_D3D9_REGISTER_FLAGS_ARRAY: Specifies that CUDA will access this resource through a CUarray queried on a sub-resource basis through cuD3D9ResourceGetMappedArray(). This option is only valid for resources of type IDirect3DSurface9 and subtypes of IDirect3DBaseTexture9.

Not all Direct3D resources of the above types may be used for interoperability with CUDA. The following are some limitations.

• The primary rendertarget may not be registered with CUDA.

• Resources allocated as shared may not be registered with CUDA.

• Any resources allocated in D3DPOOL_SYSTEMMEM or D3DPOOL_MANAGED may not be registered with CUDA.

• Textures which are not of a format which is 1, 2, or 4 channels of 8, 16, or 32-bit integer or floating-point data cannot be shared.

• Surfaces of depth or stencil formats cannot be shared.

If Direct3D interoperability is not initialized on this context, then CUDA_ERROR_INVALID_CONTEXT is returned. If pResource is of incorrect type (e.g. is a non-stand-alone IDirect3DSurface9) or is already registered, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource cannot be registered then CUDA_ERROR_UNKNOWN is returned.

See also:

cuGraphicsD3D9RegisterResource

Get an array through which to access a subresource of a Direct3D resource which has been mapped for access by CUDA.

Parameters

pArray

- Returned array corresponding to subresource

pResource

- Mapped resource to access

Face

- Face of resource to access

Level

- Level of resource to access

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Returns in *pArray an array through which the subresource of the mapped Direct3D resource pResource which corresponds to Face and Level may be accessed. The value set in pArray may change every time that pResource is mapped.

If pResource is not registered then CUDA_ERROR_INVALID_HANDLE is returned. If pResource was not registered with usage flags CU_D3D9_REGISTER_FLAGS_ARRAY then CUDA_ERROR_INVALID_HANDLE is returned. If pResource is not mapped then CUDA_ERROR_NOT_MAPPED is returned.

For usage requirements of Face and Level parameters, see cuD3D9ResourceGetMappedPointer().

See also:

cuGraphicsSubResourceGetMappedArray

Get the pitch of a subresource of a Direct3D resource which has been mapped for access by CUDA.

Parameters

pPitch

- Returned pitch of subresource

pPitchSlice

- Returned Z-slice pitch of subresource

pResource

- Mapped resource to access

Face

- Face of resource to access

Level

- Level of resource to access

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Returns in *pPitch and *pPitchSlice the pitch and Z-slice pitch of the subresource of the mapped Direct3D resource pResource, which corresponds to Face and Level. The values set in pPitch and pPitchSlice may change every time that pResource is mapped.

The pitch and Z-slice pitch values may be used to compute the location of a sample on a surface as follows.

For a 2D surface, the byte offset of the sample at position x, y from the base pointer of the surface is:

y * pitch + (bytes per pixel) * x

For a 3D surface, the byte offset of the sample at position x, y, z from the base pointer of the surface is:

z*slicePitch + y * pitch + (bytes per pixel) * x

Both parameters pPitch and pPitchSlice are optional and may be set to NULL.

If pResource is not of type IDirect3DBaseTexture9 or one of its sub-types or if pResource has not been registered for use with CUDA, then cudaErrorInvalidResourceHandle is returned. If pResource was not registered with usage flags CU_D3D9_REGISTER_FLAGS_NONE, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource is not mapped for access by CUDA then CUDA_ERROR_NOT_MAPPED is returned.

For usage requirements of Face and Level parameters, see cuD3D9ResourceGetMappedPointer().

See also:

cuGraphicsSubResourceGetMappedArray

Get the pointer through which to access a subresource of a Direct3D resource which has been mapped for access by CUDA.

Parameters

pDevPtr

- Returned pointer corresponding to subresource

pResource

- Mapped resource to access

Face

- Face of resource to access

Level

- Level of resource to access

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Returns in *pDevPtr the base pointer of the subresource of the mapped Direct3D resource pResource, which corresponds to Face and Level. The value set in pDevPtr may change every time that pResource is mapped.

If pResource is not registered, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource was not registered with usage flags CU_D3D9_REGISTER_FLAGS_NONE, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource is not mapped, then CUDA_ERROR_NOT_MAPPED is returned.

If pResource is of type IDirect3DCubeTexture9, then Face must one of the values enumerated by type D3DCUBEMAP_FACES. For all other types Face must be 0. If Face is invalid, then CUDA_ERROR_INVALID_VALUE is returned.

If pResource is of type IDirect3DBaseTexture9, then Level must correspond to a valid mipmap level. At present only mipmap level 0 is supported. For all other types Level must be 0. If Level is invalid, then CUDA_ERROR_INVALID_VALUE is returned.

See also:

cuGraphicsResourceGetMappedPointer

Get the size of a subresource of a Direct3D resource which has been mapped for access by CUDA.

Parameters

pSize

- Returned size of subresource

pResource

- Mapped resource to access

Face

- Face of resource to access

Level

- Level of resource to access

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Returns in *pSize the size of the subresource of the mapped Direct3D resource pResource, which corresponds to Face and Level. The value set in pSize may change every time that pResource is mapped.

If pResource has not been registered for use with CUDA, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource was not registered with usage flags CU_D3D9_REGISTER_FLAGS_NONE, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource is not mapped for access by CUDA, then CUDA_ERROR_NOT_MAPPED is returned.

For usage requirements of Face and Level parameters, see cuD3D9ResourceGetMappedPointer.

See also:

cuGraphicsResourceGetMappedPointer

Get the dimensions of a registered surface.

Parameters

pWidth

- Returned width of surface

pHeight

- Returned height of surface

pDepth

- Returned depth of surface

pResource

- Registered resource to access

Face

- Face of resource to access

Level

- Level of resource to access

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Returns in *pWidth, *pHeight, and *pDepth the dimensions of the subresource of the mapped Direct3D resource pResource, which corresponds to Face and Level.

Because anti-aliased surfaces may have multiple samples per pixel, it is possible that the dimensions of a resource will be an integer factor larger than the dimensions reported by the Direct3D runtime.

The parameters pWidth, pHeight, and pDepth are optional. For 2D surfaces, the value returned in *pDepth will be 0.

If pResource is not of type IDirect3DBaseTexture9 or IDirect3DSurface9 or if pResource has not been registered for use with CUDA, then CUDA_ERROR_INVALID_HANDLE is returned.

For usage requirements of Face and Level parameters, see cuD3D9ResourceGetMappedPointer().

See also:

cuGraphicsSubResourceGetMappedArray

Set usage flags for mapping a Direct3D resource.

Parameters

pResource

- Registered resource to set flags for

Flags

- Parameters for resource mapping

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_ALREADY_MAPPED

Deprecated

This function is deprecated as of Cuda 3.0.

Description

Set Flags for mapping the Direct3D resource pResource.

Changes to Flags will take effect the next time pResource is mapped. The Flags argument may be any of the following:

• CU_D3D9_MAPRESOURCE_FLAGS_NONE: Specifies no hints about how this resource will be used. It is therefore assumed that this resource will be read from and written to by CUDA kernels. This is the default value.

• CU_D3D9_MAPRESOURCE_FLAGS_READONLY: Specifies that CUDA kernels which access this resource will not write to this resource.

• CU_D3D9_MAPRESOURCE_FLAGS_WRITEDISCARD: Specifies that CUDA kernels which access this resource will not read from this resource and will write over the entire contents of the resource, so none of the data previously stored in the resource will be preserved.

If pResource has not been registered for use with CUDA, then CUDA_ERROR_INVALID_HANDLE is returned. If pResource is presently mapped for access by CUDA, then CUDA_ERROR_ALREADY_MAPPED is returned.

See also:

cuGraphicsResourceSetMapFlags

Unmaps Direct3D resources.

Parameters

count

- Number of resources to unmap for CUDA

ppResource

- Resources to unmap for CUDA

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_NOT_MAPPED, CUDA_ERROR_UNKNOWN

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Unmaps the count Direct3D resources in ppResource.

This function provides the synchronization guarantee that any CUDA kernels issued before cuD3D9UnmapResources() will complete before any Direct3D calls issued after cuD3D9UnmapResources() begin.

If any of ppResource have not been registered for use with CUDA or if ppResource contains any duplicate entries, then CUDA_ERROR_INVALID_HANDLE is returned. If any of ppResource are not presently mapped for access by CUDA, then CUDA_ERROR_NOT_MAPPED is returned.

See also:

cuGraphicsUnmapResources

Unregister a Direct3D resource.

Parameters

pResource

- Resource to unregister

Returns

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_HANDLE, CUDA_ERROR_UNKNOWN

Deprecated

This function is deprecated as of CUDA 3.0.

Description

Unregisters the Direct3D resource pResource so it is not accessible by CUDA unless registered again.

If pResource is not registered, then CUDA_ERROR_INVALID_HANDLE is returned.

See also:

cuGraphicsUnregisterResource