Provided by: nvidia-cuda-dev_7.5.18-0ubuntu1_amd64 
NAME
Direct3D 9 Interoperability -
Modules
Direct3D 9 Interoperability [DEPRECATED]
Enumerations
enum CUd3d9DeviceList { CU_D3D9_DEVICE_LIST_ALL = 0x01, CU_D3D9_DEVICE_LIST_CURRENT_FRAME
= 0x02, CU_D3D9_DEVICE_LIST_NEXT_FRAME = 0x03 }
Functions
CUresult cuD3D9CtxCreate (CUcontext *pCtx, CUdevice *pCudaDevice, unsigned int Flags,
IDirect3DDevice9 *pD3DDevice)
Create a CUDA context for interoperability with Direct3D 9.
CUresult cuD3D9CtxCreateOnDevice (CUcontext *pCtx, unsigned int flags, IDirect3DDevice9
*pD3DDevice, CUdevice cudaDevice)
Create a CUDA context for interoperability with Direct3D 9.
CUresult cuD3D9GetDevice (CUdevice *pCudaDevice, const char *pszAdapterName)
Gets the CUDA device corresponding to a display adapter.
CUresult cuD3D9GetDevices (unsigned int *pCudaDeviceCount, CUdevice *pCudaDevices,
unsigned int cudaDeviceCount, IDirect3DDevice9 *pD3D9Device, CUd3d9DeviceList
deviceList)
Gets the CUDA devices corresponding to a Direct3D 9 device.
CUresult cuD3D9GetDirect3DDevice (IDirect3DDevice9 **ppD3DDevice)
Get the Direct3D 9 device against which the current CUDA context was created.
CUresult cuGraphicsD3D9RegisterResource (CUgraphicsResource *pCudaResource,
IDirect3DResource9 *pD3DResource, unsigned int Flags)
Register a Direct3D 9 resource for access by CUDA.
Detailed Description
\brief Direct3D 9 interoperability functions of the low-level CUDA driver API (cudaD3D9.h)
This section describes the Direct3D 9 interoperability functions of the low-level CUDA
driver application programming interface. Note that mapping of Direct3D 9 resources is
performed with the graphics API agnostic, resource mapping interface described in Graphics
Interoperability.
Enumeration Type Documentation
enum CUd3d9DeviceList
CUDA devices corresponding to a D3D9 device
Enumerator:
CU_D3D9_DEVICE_LIST_ALL
The CUDA devices for all GPUs used by a D3D9 device
CU_D3D9_DEVICE_LIST_CURRENT_FRAME
The CUDA devices for the GPUs used by a D3D9 device in its currently rendering
frame
CU_D3D9_DEVICE_LIST_NEXT_FRAME
The CUDA devices for the GPUs to be used by a D3D9 device in the next frame
Function Documentation
CUresult cuD3D9CtxCreate (CUcontext * pCtx, CUdevice * pCudaDevice, unsigned int Flags,
IDirect3DDevice9 * pD3DDevice)
Creates a new CUDA context, enables interoperability for that context with the Direct3D
device pD3DDevice, and associates the created CUDA context with the calling thread. The
created CUcontext will be returned in *pCtx. Direct3D resources from this device may be
registered and mapped through the lifetime of this CUDA context. If pCudaDevice is non-
NULL then the CUdevice on which this CUDA context was created will be returned in
*pCudaDevice.
On success, this call will increase the internal reference count on pD3DDevice. This
reference count will be decremented upon destruction of this context through
cuCtxDestroy(). This context will cease to function if pD3DDevice is destroyed or
encounters an error.
Note that this function is never required for correct functionality. Use of this function
will result in accelerated interoperability only when the operating system is Windows
Vista or Windows 7, and the device pD3DDdevice is not an IDirect3DDevice9Ex. In all other
circumstances, this function is not necessary.
Parameters:
pCtx - Returned newly created CUDA context
pCudaDevice - Returned pointer to the device on which the context was created
Flags - Context creation flags (see cuCtxCreate() for details)
pD3DDevice - Direct3D device to create interoperability context with
Returns:
CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED,
CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_OUT_OF_MEMORY, CUDA_ERROR_UNKNOWN
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9GetDevice, cuGraphicsD3D9RegisterResource
CUresult cuD3D9CtxCreateOnDevice (CUcontext * pCtx, unsigned int flags, IDirect3DDevice9 *
pD3DDevice, CUdevice cudaDevice)
Creates a new CUDA context, enables interoperability for that context with the Direct3D
device pD3DDevice, and associates the created CUDA context with the calling thread. The
created CUcontext will be returned in *pCtx. Direct3D resources from this device may be
registered and mapped through the lifetime of this CUDA context.
On success, this call will increase the internal reference count on pD3DDevice. This
reference count will be decremented upon destruction of this context through
cuCtxDestroy(). This context will cease to function if pD3DDevice is destroyed or
encounters an error.
Note that this function is never required for correct functionality. Use of this function
will result in accelerated interoperability only when the operating system is Windows
Vista or Windows 7, and the device pD3DDdevice is not an IDirect3DDevice9Ex. In all other
circumstances, this function is not necessary.
Parameters:
pCtx - Returned newly created CUDA context
flags - Context creation flags (see cuCtxCreate() for details)
pD3DDevice - Direct3D device to create interoperability context with
cudaDevice - The CUDA device on which to create the context. This device must be among
the devices returned when querying CU_D3D9_DEVICES_ALL from cuD3D9GetDevices.
Returns:
CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED,
CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_OUT_OF_MEMORY, CUDA_ERROR_UNKNOWN
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9GetDevices, cuGraphicsD3D9RegisterResource
CUresult cuD3D9GetDevice (CUdevice * pCudaDevice, const char * pszAdapterName)
Returns in *pCudaDevice the CUDA-compatible device corresponding to the adapter name
pszAdapterName obtained from EnumDisplayDevices() or IDirect3D9::GetAdapterIdentifier().
If no device on the adapter with name pszAdapterName is CUDA-compatible, then the call
will fail.
Parameters:
pCudaDevice - Returned CUDA device corresponding to pszAdapterName
pszAdapterName - Adapter name to query for device
Returns:
CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED,
CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_NOT_FOUND, CUDA_ERROR_UNKNOWN
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9CtxCreate
CUresult cuD3D9GetDevices (unsigned int * pCudaDeviceCount, CUdevice * pCudaDevices, unsigned
int cudaDeviceCount, IDirect3DDevice9 * pD3D9Device, CUd3d9DeviceList deviceList)
Returns in *pCudaDeviceCount the number of CUDA-compatible device corresponding to the
Direct3D 9 device pD3D9Device. Also returns in *pCudaDevices at most cudaDeviceCount of
the CUDA-compatible devices corresponding to the Direct3D 9 device pD3D9Device.
If any of the GPUs being used to render pDevice are not CUDA capable then the call will
return CUDA_ERROR_NO_DEVICE.
Parameters:
pCudaDeviceCount - Returned number of CUDA devices corresponding to pD3D9Device
pCudaDevices - Returned CUDA devices corresponding to pD3D9Device
cudaDeviceCount - The size of the output device array pCudaDevices
pD3D9Device - Direct3D 9 device to query for CUDA devices
deviceList - The set of devices to return. This set may be CU_D3D9_DEVICE_LIST_ALL for
all devices, CU_D3D9_DEVICE_LIST_CURRENT_FRAME for the devices used to render the
current frame (in SLI), or CU_D3D9_DEVICE_LIST_NEXT_FRAME for the devices used to
render the next frame (in SLI).
Returns:
CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED,
CUDA_ERROR_NO_DEVICE, CUDA_ERROR_INVALID_VALUE, CUDA_ERROR_NOT_FOUND,
CUDA_ERROR_UNKNOWN
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9CtxCreate
CUresult cuD3D9GetDirect3DDevice (IDirect3DDevice9 ** ppD3DDevice)
Returns in *ppD3DDevice the Direct3D device against which this CUDA context was created in
cuD3D9CtxCreate().
Parameters:
ppD3DDevice - Returned Direct3D device corresponding to CUDA context
Returns:
CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED,
CUDA_ERROR_INVALID_CONTEXT
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9GetDevice
CUresult cuGraphicsD3D9RegisterResource (CUgraphicsResource * pCudaResource,
IDirect3DResource9 * pD3DResource, unsigned int Flags)
Registers the Direct3D 9 resource pD3DResource for access by CUDA and returns a CUDA
handle to pD3Dresource in pCudaResource. The handle returned in pCudaResource may be used
to map and unmap this resource until it is unregistered. On success this call will
increase the internal reference count on pD3DResource. This reference count will be
decremented when this resource is unregistered through cuGraphicsUnregisterResource().
This call is potentially high-overhead and should not be called every frame in interactive
applications.
The type of pD3DResource must be one of the following.
• IDirect3DVertexBuffer9: may be accessed through a device pointer
• IDirect3DIndexBuffer9: may be accessed through a device pointer
• IDirect3DSurface9: may be accessed through an array. 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.
• IDirect3DBaseTexture9: individual surfaces on this texture may be accessed through an
array.
The Flags argument may be used to specify additional parameters at register time. The
valid values for this parameter are
• CU_GRAPHICS_REGISTER_FLAGS_NONE: Specifies no hints about how this resource will be
used.
• CU_GRAPHICS_REGISTER_FLAGS_SURFACE_LDST: Specifies that CUDA will bind this resource to
a surface reference.
• CU_GRAPHICS_REGISTER_FLAGS_TEXTURE_GATHER: Specifies that CUDA will perform texture
gather operations on this resource.
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.
• 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.
A complete list of supported formats is as follows:
• D3DFMT_L8
• D3DFMT_L16
• D3DFMT_A8R8G8B8
• D3DFMT_X8R8G8B8
• D3DFMT_G16R16
• D3DFMT_A8B8G8R8
• D3DFMT_A8
• D3DFMT_A8L8
• D3DFMT_Q8W8V8U8
• D3DFMT_V16U16
• D3DFMT_A16B16G16R16F
• D3DFMT_A16B16G16R16
• D3DFMT_R32F
• D3DFMT_G16R16F
• D3DFMT_A32B32G32R32F
• D3DFMT_G32R32F
• D3DFMT_R16F
If Direct3D interoperability is not initialized for this context using cuD3D9CtxCreate
then CUDA_ERROR_INVALID_CONTEXT is returned. If pD3DResource is of incorrect type or is
already registered then CUDA_ERROR_INVALID_HANDLE is returned. If pD3DResource cannot be
registered then CUDA_ERROR_UNKNOWN is returned. If Flags is not one of the above specified
value then CUDA_ERROR_INVALID_VALUE is returned.
Parameters:
pCudaResource - Returned graphics resource handle
pD3DResource - Direct3D resource to register
Flags - Parameters 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
Note:
Note that this function may also return error codes from previous, asynchronous
launches.
See also:
cuD3D9CtxCreate, cuGraphicsUnregisterResource, cuGraphicsMapResources,
cuGraphicsSubResourceGetMappedArray, cuGraphicsResourceGetMappedPointer
Author
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