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Surface Object Management

\brief surface object management functions of the low-level CUDA driver API (cuda.h)

This section describes the surface object management functions of the low-level CUDA driver application programming interface. The surface object API is only supported on devices of compute capability 3.0 or higher.

CUresult cuSurfObjectCreate (CUsurfObject * pSurfObject, const CUDA_RESOURCE_DESC * pResDesc)

Creates a surface object and returns it in pSurfObject. pResDesc describes the data to perform surface load/stores on. CUDA_RESOURCE_DESC::resType must be CU_RESOURCE_TYPE_ARRAY and CUDA_RESOURCE_DESC::res::array::hArray must be set to a valid CUDA array handle. CUDA_RESOURCE_DESC::flags must be set to zero.

Surface objects are only supported on devices of compute capability 3.0 or higher. Additionally, a surface object is an opaque value, and, as such, should only be accessed through CUDA API calls.

Parameters:

pSurfObject - Surface object to create
pResDesc - Resource descriptor

Returns:

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

See also:

cuSurfObjectDestroy

CUresult cuSurfObjectDestroy (CUsurfObject surfObject)

Destroys the surface object specified by surfObject.

Parameters:

surfObject - Surface object to destroy

Returns:

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

See also:

cuSurfObjectCreate

CUresult cuSurfObjectGetResourceDesc (CUDA_RESOURCE_DESC * pResDesc, CUsurfObject surfObject)

Returns the resource descriptor for the surface object specified by surfObject.

Parameters:

pResDesc - Resource descriptor
surfObject - Surface object

Returns:

CUDA_SUCCESS, CUDA_ERROR_DEINITIALIZED, CUDA_ERROR_NOT_INITIALIZED, CUDA_ERROR_INVALID_CONTEXT, CUDA_ERROR_INVALID_VALUE

See also:

cuSurfObjectCreate

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