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#ifndef NV_NPPS_SUPPORT_FUNCTIONS_H
#define NV_NPPS_SUPPORT_FUNCTIONS_H
 
/**
 * \file npps_support_functions.h
 * Signal Processing Support Functions.
 */
 
#include "nppdefs.h"


#ifdef __cplusplus
extern "C" {
#endif


/** 
 *  \page signal_memory_management Memory Management
 *  @defgroup signal_memory_management Memory Management
 *  @ingroup npps
 * Functions that provide memory management functionality like malloc and free.
 * @{
 */

/** 
 * \section signal_malloc Malloc
 * @defgroup signal_malloc 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 constraints
 * 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. 
 *
 * @{
 */

/**
 * 8-bit unsigned signal allocator.
 * \param nSize Number of unsigned chars in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp8u * 
nppsMalloc_8u(size_t nSize);

/**
 * 8-bit signed signal allocator.
 * \param nSize Number of (signed) chars in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp8s * 
nppsMalloc_8s(size_t nSize);

/**
 * 16-bit unsigned signal allocator.
 * \param nSize Number of unsigned shorts in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp16u * 
nppsMalloc_16u(size_t nSize);

/**
 * 16-bit signal allocator.
 * \param nSize Number of shorts in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp16s * 
nppsMalloc_16s(size_t nSize);

/**
 * 16-bit complex-value signal allocator.
 * \param nSize Number of 16-bit complex numbers in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp16sc * 
nppsMalloc_16sc(size_t nSize);

/**
 * 32-bit unsigned signal allocator.
 * \param nSize Number of unsigned ints in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp32u * 
nppsMalloc_32u(size_t nSize);

/**
 * 32-bit integer signal allocator.
 * \param nSize Number of ints in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp32s * 
nppsMalloc_32s(size_t nSize);

/**
 * 32-bit complex integer signal allocator.
 * \param nSize Number of complex integer values in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp32sc * 
nppsMalloc_32sc(size_t nSize);

/**
 * 32-bit float signal allocator.
 * \param nSize Number of floats in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp32f * 
nppsMalloc_32f(size_t nSize);

/**
 * 32-bit complex float signal allocator.
 * \param nSize Number of complex float values in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp32fc * 
nppsMalloc_32fc(size_t nSize);

/**
 * 64-bit long integer signal allocator.
 * \param nSize Number of long ints in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp64s * 
nppsMalloc_64s(size_t nSize);

/**
 * 64-bit complex long integer signal allocator.
 * \param nSize Number of complex long int values in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp64sc * 
nppsMalloc_64sc(size_t nSize);

/**
 * 64-bit float (double) signal allocator.
 * \param nSize Number of doubles in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp64f * 
nppsMalloc_64f(size_t nSize);

/**
 * 64-bit complex complex signal allocator.
 * \param nSize Number of complex double values in the new signal.
 * \return A pointer to the new signal. 0 (NULL-pointer) indicates
 *         that an error occurred during allocation.
 */
Npp64fc * 
nppsMalloc_64fc(size_t nSize);

/** @} signal_malloc */

/** 
 * \section signal_free Free
 * @defgroup signal_free Free
 * Free  signal memory.
 *
 * @{
 */
 
/**
 * Free method for any signal memory.
 * \param pValues A pointer to memory allocated using nppiMalloc_<modifier>.
 */
void nppsFree(void * pValues);

/** @} signal_free */

/** @} signal_memory_management */


#ifdef __cplusplus
} /* extern "C" */
#endif

#endif /* NV_NPPS_SUPPORT_FUNCTIONS_H */
