FloatImg4PythonBinding/funcs/rectangle.c

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/*
* R E C T A N G L E
* This is an eternal WIP, sorry...
*/
#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
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#include <string.h>
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#include <math.h>
#include "../floatimg.h"
/* --------------------------------------------------------------------- */
int fimg_clear_rectangle(FloatImg *pi, int coo[4])
{
int line, off;
#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( %p %p )\n", __func__, pi, coo);
#endif
/* please add boudary checks */
for (line=0; line<coo[3]; line++) {
off = (line+coo[1])*pi->width + coo[0];
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// fprintf(stderr, "line %3d off %8d\n", line, off);
/* Kaboum ! */
memset(pi->R + off, 0, coo[2]*sizeof(float));
memset(pi->G + off, 0, coo[2]*sizeof(float));
memset(pi->B + off, 0, coo[2]*sizeof(float));
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}
return -1;
}
/* --------------------------------------------------------------------- */