4.26. Surface Object Management
This section describes the low level texture object management functions of the CUDA runtime application programming interface. The surface object API is only supported on devices of compute capability 3.0 or higher.
Functions
- __host__ cudaError_t cudaCreateSurfaceObject ( cudaSurfaceObject_t* pSurfObject, const cudaResourceDesc* pResDesc )
- Creates a surface object.
- __host__ cudaError_t cudaDestroySurfaceObject ( cudaSurfaceObject_t surfObject )
- Destroys a surface object.
- __host__ cudaError_t cudaGetSurfaceObjectResourceDesc ( cudaResourceDesc* pResDesc, cudaSurfaceObject_t surfObject )
- Returns a surface object's resource descriptor Returns the resource descriptor for the surface object specified by surfObject.
Functions
- __host__ cudaError_t cudaCreateSurfaceObject ( cudaSurfaceObject_t* pSurfObject, const cudaResourceDesc* pResDesc )
-
Creates a surface object.
Parameters
- pSurfObject
- - Surface object to create
- pResDesc
- - Resource descriptor
Returns
Description
Creates a surface object and returns it in pSurfObject. pResDesc describes the data to perform surface load/stores on. cudaResourceDesc::resType must be cudaResourceTypeArray and cudaResourceDesc::res::array::array must be set to a valid CUDA array handle.
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.
See also:
- __host__ cudaError_t cudaDestroySurfaceObject ( cudaSurfaceObject_t surfObject )
-
Destroys a surface object.
Parameters
- surfObject
- - Surface object to destroy
Returns
Description
Destroys the surface object specified by surfObject.
See also:
- __host__ cudaError_t cudaGetSurfaceObjectResourceDesc ( cudaResourceDesc* pResDesc, cudaSurfaceObject_t surfObject )
-
Returns a surface object's resource descriptor Returns the resource descriptor for the surface object specified by surfObject.
Parameters
- pResDesc
- - Resource descriptor
- surfObject
- - Surface object
Returns