Signal Memory Management Functions
Functions that provide memory management functionality like malloc and free.
Malloc
Signal-allocator methods for allocating 1D arrays of data in device memory. All allocators have size parameters to specify the size of the signal (1D array) being allocated.
The allocator methods return a pointer to the newly allocated memory of appropriate type. If device-memory allocation is not possible due to resource constaints the allocators return 0 (i.e. NULL pointer).
All signal allocators allocate memory aligned such that it is beneficial to the performance of the majority of the signal-processing primitives. It is no mandatory however to use these allocators. Any valid CUDA device-memory pointers can be passed to NPP primitives.
Functions
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Npp8u *nppsMalloc_8u(int nSize)
8-bit unsigned signal allocator.
- Parameters
nSize – Number of unsigned chars in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp8s *nppsMalloc_8s(int nSize)
8-bit signed signal allocator.
- Parameters
nSize – Number of (signed) chars in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp16u *nppsMalloc_16u(int nSize)
16-bit unsigned signal allocator.
- Parameters
nSize – Number of unsigned shorts in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp16s *nppsMalloc_16s(int nSize)
16-bit signal allocator.
- Parameters
nSize – Number of shorts in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp16sc *nppsMalloc_16sc(int nSize)
16-bit complex-value signal allocator.
- Parameters
nSize – Number of 16-bit complex numbers in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp32u *nppsMalloc_32u(int nSize)
32-bit unsigned signal allocator.
- Parameters
nSize – Number of unsigned ints in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp32s *nppsMalloc_32s(int nSize)
32-bit integer signal allocator.
- Parameters
nSize – Number of ints in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp32sc *nppsMalloc_32sc(int nSize)
32-bit complex integer signal allocator.
- Parameters
nSize – Number of complex integner values in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp32f *nppsMalloc_32f(int nSize)
32-bit float signal allocator.
- Parameters
nSize – Number of floats in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp32fc *nppsMalloc_32fc(int nSize)
32-bit complex float signal allocator.
- Parameters
nSize – Number of complex float values in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp64s *nppsMalloc_64s(int nSize)
64-bit long integer signal allocator.
- Parameters
nSize – Number of long ints in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
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Npp64sc *nppsMalloc_64sc(int nSize)
64-bit complex long integer signal allocator.
- Parameters
nSize – Number of complex long int values in the new signal.
- Returns
A pointer to the new signal. 0 (NULL-pointer) indicates that an error occurred during allocation.
Free
Free signal memory.
Functions
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void nppsFree(void *pValues)
Free method for any signal memory.
- Parameters
pValues – A pointer to memory allocated using nppiMalloc_<modifier>.