VXLIB_dilate.cpp

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/**********************************************************************************************************************/
/*                                                                                                                    */
/* INCLUDES                                                                                                           */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
#include "VXLIB_dilate_priv.h"
#include "VXLIB_types.h"
#include <cstdint>
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_dilate_getHandleSize */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method calculates and returns the size of the handle for the VXLIB_dilate kernel
int32_t VXLIB_dilate_getHandleSize(VXLIB_dilate_InitArgs *pKerInitArgs)
{
   int32_t privBufSize = sizeof(VXLIB_dilate_PrivArgs);
   return privBufSize;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_dilate_init_checkParams */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method checks the initialization parameters for the VXLIB_dilate kernel
VXLIB_STATUS
VXLIB_dilate_init_checkParams(VXLIB_kernelHandle           handle,
                              const VXLIB_bufParams2D_t   *bufParamsIn,
                              const VXLIB_bufParams2D_t   *bufParamsOut,
                              const VXLIB_dilate_InitArgs *pKerInitArgs)
{
   VXLIB_STATUS status = VXLIB_SUCCESS;
 
   // check for null handles
   if (handle == NULL || bufParamsIn == NULL || bufParamsOut == NULL || pKerInitArgs == NULL) {
      status = VXLIB_ERR_NULL_POINTER;
   }
   else {
      // obtain input buffer parameters
      uint32_t dTypeIn  = bufParamsIn->data_type;
      uint32_t widthIn  = bufParamsIn->dim_x;
      uint32_t heightIn = bufParamsIn->dim_y;
      uint32_t strideIn = bufParamsIn->stride_y;
 
      // obtain output buffer parameters
      uint32_t dTypeOut  = bufParamsOut->data_type;
      uint32_t widthOut  = bufParamsOut->dim_x;
      uint32_t heightOut = bufParamsOut->dim_y;
      uint32_t strideOut = bufParamsOut->stride_y;
 
      size_t filterWidth  = pKerInitArgs->filterWidth;
      size_t filterHeight = pKerInitArgs->filterHeight;
 
      // check for valid datatype combinations
      if ((!VXLIB_DILATE_I8U_O8U) && (!VXLIB_DILATE_I16U_O16U)) {
         status = VXLIB_ERR_INVALID_TYPE;
      }
      // check valid dimensions; input height, width must be greater, equal to filter size for non padded implementation
      else if ((widthIn < widthOut) || (heightIn - filterHeight + 1 != heightOut) ||
               (strideIn / VXLIB_sizeof(dTypeIn) < widthIn) || (strideOut / VXLIB_sizeof(dTypeOut) < widthOut) ||
               (widthIn < filterWidth) || (heightIn < filterHeight)) {
         status = VXLIB_ERR_INVALID_DIMENSION;
      }
 
      else {
         status = VXLIB_SUCCESS;
      }
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_dilate_exec_checkParams */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method checks the execution parameters for the VXLIB_dilate kernel
VXLIB_STATUS
VXLIB_dilate_exec_checkParams(VXLIB_kernelHandle handle, const void *restrict pIn, const void *restrict pOut)
{
   VXLIB_STATUS status;
 
#if VXLIB_DEBUGPRINT
   printf("Enter VXLIB_dilate_exec_checkParams\n");
#endif
   if ((handle == NULL) || (pIn == NULL) || (pOut == NULL)) {
      status = VXLIB_ERR_NULL_POINTER;
   }
   else {
      status = VXLIB_SUCCESS;
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_dilate_init */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method is the user-level initialization function for the VXLIB_dilate kernel
VXLIB_STATUS VXLIB_dilate_init(VXLIB_kernelHandle           handle,
                               VXLIB_bufParams2D_t         *bufParamsIn,
                               VXLIB_bufParams2D_t         *bufParamsOut,
                               const VXLIB_dilate_InitArgs *pKerInitArgs)
{
   VXLIB_STATUS           status       = VXLIB_SUCCESS;
   VXLIB_dilate_PrivArgs *pKerPrivArgs = (VXLIB_dilate_PrivArgs *) handle;
 
   // copy pKerinitArgs into pKerPrivargs
   pKerPrivArgs->pKerInitArgs = *pKerInitArgs;
 
   // set priv args
   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);
   pKerPrivArgs->strideOutElements = bufParamsOut->stride_y / VXLIB_sizeof(bufParamsOut->data_type);
 
#if VXLIB_DEBUGPRINT
   printf("VXLIB_DEBUGPRINT Enter VXLIB_dilate_init\n");
#endif
 
   // obtain buffer datatypes
   uint32_t dTypeIn  = bufParamsIn->data_type;
   uint32_t dTypeOut = bufParamsOut->data_type;
 
   // 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_DILATE_I8U_O8U) {
         pKerPrivArgs->execute = VXLIB_dilate_exec_cn<VXLIB_DILATE_TYPENAME_I8U_O8U>;
      }
 
      else if (VXLIB_DILATE_I16U_O16U) {
         pKerPrivArgs->execute = VXLIB_dilate_exec_cn<VXLIB_DILATE_TYPENAME_I16U_O16U>;
      }
      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_DILATE_I8U_O8U) {
         status = VXLIB_dilate_init_ci<VXLIB_DILATE_DTYPE_I8U_O8U>(handle, bufParamsIn, bufParamsOut, pKerInitArgs);
         pKerPrivArgs->execute = VXLIB_dilate_exec_ci<VXLIB_DILATE_TYPENAME_I8U_O8U>;
      }
 
      else if (VXLIB_DILATE_I16U_O16U) {
         status = VXLIB_dilate_init_ci<VXLIB_DILATE_DTYPE_I16U_O16U>(handle, bufParamsIn, bufParamsOut, pKerInitArgs);
         pKerPrivArgs->execute = VXLIB_dilate_exec_ci<VXLIB_DILATE_TYPENAME_I16U_O16U>;
      }
      else {
         status = VXLIB_ERR_INVALID_TYPE;
      }
   }
 
   return status;
}
 
/**********************************************************************************************************************/
/*                                                                                                                    */
/* VXLIB_dilate_exec */
/*                                                                                                                    */
/**********************************************************************************************************************/
 
// this method is the user-level execution function for the VXLIB_dilate kernel
VXLIB_STATUS
VXLIB_dilate_exec(VXLIB_kernelHandle handle, void *restrict pIn, void *restrict pOut)
{
   VXLIB_STATUS status;
 
#if VXLIB_DEBUGPRINT
   printf("VXLIB_DEBUGPRINT Enter VXLIB_dilate_exec\n");
#endif
 
   VXLIB_dilate_PrivArgs *pKerPrivArgs = (VXLIB_dilate_PrivArgs *) handle;
 
   status = pKerPrivArgs->execute(handle, pIn, pOut);
 
   return status;
}