VXLIB_meanStdDev.cpp

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/**********************************************************************************************************************/
/*                                                                                                                    */
/* INCLUDES                                                                                                           */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
#include "VXLIB_meanStdDev_priv.h"
#include "VXLIB_types.h"
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_meanStdDev_getHandleSize */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method calculates and returns the size of the handle for the VXLIB_meanStdDev kernel
int32_t VXLIB_meanStdDev_getHandleSize(VXLIB_meanStdDev_InitArgs *pKerInitArgs)
{
   int32_t privBufSize = sizeof(VXLIB_meanStdDev_PrivArgs);
   return privBufSize;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_meanStdDev_init_checkParams */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method checks the initialization parameters for the VXLIB_meanStdDev kernel
VXLIB_STATUS
VXLIB_meanStdDev_init_checkParams(VXLIB_kernelHandle               handle,
                                  const VXLIB_bufParams2D_t       *bufParamsIn,
                                  const VXLIB_meanStdDev_InitArgs *pKerInitArgs)
{
   VXLIB_STATUS status = VXLIB_SUCCESS;
 
   // obtain input0 buffer parameters
   uint32_t dTypeIn  = bufParamsIn->data_type;
   uint32_t widthIn  = bufParamsIn->dim_x;
   uint32_t strideIn = bufParamsIn->stride_y;
 
   // obtain output buffer parameters
   uint32_t dTypeOut = VXLIB_FLOAT32;
 
   // check for dimensions and datatype combinations
   if (handle == NULL) {
      status = VXLIB_ERR_NULL_POINTER;
   }
   else if ((!VXLIB_MEANSTDDEV_I8U_O32F) && (!VXLIB_MEANSTDDEV_I16U_O32F)) {
      status = VXLIB_ERR_INVALID_TYPE;
   }
   else if (strideIn < widthIn) {
      status = VXLIB_ERR_INVALID_DIMENSION;
   }
   else {
      status = VXLIB_SUCCESS;
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_meanStdDev_exec_checkParams */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method checks the execution parameters for the VXLIB_meanStdDev kernel
VXLIB_STATUS VXLIB_meanStdDev_exec_checkParams(VXLIB_kernelHandle handle,
                                               const void *restrict pIn,
                                               const void *restrict pOut0,
                                               const void *restrict pOut1,
                                               const void *restrict pPixelsProcessed,
                                               const void *restrict pCurrentSum,
                                               const void *restrict pCurrentSqSum)
{
   VXLIB_STATUS status;
 
#if VXLIB_DEBUGPRINT
   printf("Enter VXLIB_meanStdDev_exec_checkParams\n");
#endif
   if ((handle == NULL) || (pIn == NULL) || (pOut0 == NULL) || (pOut1 == NULL) || (pPixelsProcessed == NULL) ||
       (pCurrentSum == NULL) || (pCurrentSqSum == NULL)) {
      status = VXLIB_ERR_NULL_POINTER;
   }
   else {
      status = VXLIB_SUCCESS;
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_meanStdDev_init */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method is the user-level initialization function for the VXLIB_meanStdDev kernel
VXLIB_STATUS VXLIB_meanStdDev_init(VXLIB_kernelHandle               handle,
                                   VXLIB_bufParams2D_t             *bufParamsIn,
                                   const VXLIB_meanStdDev_InitArgs *pKerInitArgs)
{
   VXLIB_STATUS               status       = VXLIB_SUCCESS;
   VXLIB_meanStdDev_PrivArgs *pKerPrivArgs = (VXLIB_meanStdDev_PrivArgs *) handle;
 
   // copy pKerinitArgs into pKerPrivargs
   pKerPrivArgs->pKerInitArgs = *pKerInitArgs;
 
   // set width and height of image
   pKerPrivArgs->width  = bufParamsIn->dim_x;
   pKerPrivArgs->height = bufParamsIn->dim_y;
 
   // compute stride in elements as SE/SA params are set to work with given element type
   pKerPrivArgs->strideInElements = bufParamsIn->stride_y / VXLIB_sizeof(bufParamsIn->data_type);
 
#if VXLIB_DEBUGPRINT
   printf("VXLIB_DEBUGPRINT Enter VXLIB_meanStdDev_init\n");
#endif
 
   // obtain buffer datatypes
   uint32_t dTypeIn  = bufParamsIn->data_type;
   uint32_t dTypeOut = VXLIB_FLOAT32;
 
   // determine natural C  vs optimized function call
   if (pKerInitArgs->funcStyle == VXLIB_FUNCTION_NATC) {
 
      // set function pointer for natural C function with appropriate template parameters based on datatypes
      if (VXLIB_MEANSTDDEV_I8U_O32F) {
         pKerPrivArgs->execute = VXLIB_meanStdDev_exec_cn<VXLIB_MEANSTDDEV_TYPENAME_I8U_O32F>;
      }
      else if (VXLIB_MEANSTDDEV_I16U_O32F) {
         pKerPrivArgs->execute = VXLIB_meanStdDev_exec_cn<VXLIB_MEANSTDDEV_TYPENAME_I16U_O32F>;
      }
      else {
         status = VXLIB_ERR_INVALID_TYPE;
      }
   }
   else { // Optimized function
 
      // set function pointer for natural C function with appropriate template parameters based on datatypes
      if (VXLIB_MEANSTDDEV_I8U_O32F) {
         pKerPrivArgs->execute = VXLIB_meanStdDev_exec_ci<VXLIB_MEANSTDDEV_TYPENAME_I8U_O32F>;
         status = VXLIB_meanStdDev_init_ci<VXLIB_MEANSTDDEV_DTYPE_I8U_O32F>(handle, bufParamsIn, pKerInitArgs);
      }
      else if (VXLIB_MEANSTDDEV_I16U_O32F) {
         pKerPrivArgs->execute = VXLIB_meanStdDev_exec_ci<VXLIB_MEANSTDDEV_TYPENAME_I16U_O32F>;
         status = VXLIB_meanStdDev_init_ci<VXLIB_MEANSTDDEV_DTYPE_I16U_O32F>(handle, bufParamsIn, pKerInitArgs);
      }
      else {
         status = VXLIB_ERR_INVALID_TYPE;
      }
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_meanStdDev_exec */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method is the user-level execution function for the VXLIB_meanStdDev kernel
VXLIB_STATUS
VXLIB_meanStdDev_exec(VXLIB_kernelHandle handle,
                      void *restrict pIn,
                      void *restrict pOut0,
                      void *restrict pOut1,
                      void *restrict pPixelsProcessed,
                      void *restrict pCurrentSum,
                      void *restrict pCurrentSqSum)
{
   VXLIB_STATUS status;
 
#if VXLIB_DEBUGPRINT
   printf("VXLIB_DEBUGPRINT Enter VXLIB_meanStdDev_exec\n");
#endif
 
   VXLIB_meanStdDev_PrivArgs *pKerPrivArgs = (VXLIB_meanStdDev_PrivArgs *) handle;
 
   status = pKerPrivArgs->execute(handle, pIn, pOut0, pOut1, pPixelsProcessed, pCurrentSum, pCurrentSqSum);
 
   return status;
}