Set

Initializes image pixel values to a specified value.

The function interface is declared as follows:

HmppResult HMPPI_Set_64f_C1R(double value, double *dst, HmppiSize dstSize);

Parameters

Parameter	Description	Value Range	Input/Output
dst	Pointer to the destination image ROI	The value cannot be NULL.	Input/Output
value	Pixel value to be initialized.	Value within the data type range	Input
dstSize	Size of the destination image ROI	Positive integer	Input

Return Value

Success: HMPP_STS_NO_ERR
Failure: An error code is returned.

Error Codes

Error Code	Description
HMPP_STS_NULL_PTR_ERR	The value of dst is NULL.
HMPP_STS_SIZE_ERR	The value of dstSize is 0 or negative.
HMPP_STS_NO_ERR	No error occurs.

Example

#include <stdio.h>
#include "hmppi.h"
#include "hmpp_type.h"

void SetExample()
{
    double value = 0.0;
    HmppiSize dstSize = {4, 4};
    double *dst = (double *)malloc(dstSize.height * dstSize.width * sizeof(double));
    
    HmppResult result = HMPPI_Set_64f_C1R(value, dst, dstSize);
    printf("result = %d\n", result);
    
    if (result != HMPP_STS_NO_ERR) {
        return;
    }
    for (int y = 0; y < dstSize.height; ++y) {
        for (int x = 0; x < dstSize.width; ++x) {
            printf("%f ", dst[y * dstSize.width + x]);
        }
    }
    printf("\n");
}
 
int main()
{
    SetExample();
    return 0;
}

Output:

result = 0
0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000 0.000000

Parent topic: Basic Operations