FloatImg4PythonBinding/essai.c

/*
	testing some random funcs.

*/

#include  <stdio.h>
#include  <stdlib.h>
#include  <unistd.h>
#include  <math.h>
#include  <string.h>

#include  "floatimg.h"

int		verbosity;

/* --------------------------------------------------------------------- */
int add(FloatImg *a, FloatImg *b)
{
int		x, y;
int 		offset;
double		tb;

fimg_timer_set(0);

for (x=0; x<a->width; x++) {
	for (y=0; y<a->height; y++) {
		offset = x + (y * a->width);
		a->R[offset] += b->R[offset];
		a->G[offset] += b->G[offset];
		a->B[offset] += b->B[offset];
		}
	}

tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);

return 0;
}
/* --------------------------------------------------------------------- */
void fait_un_dessin(char *fname)
{
FloatImg	dessin;
double		tb;

puts("");
fimg_timer_set(0);
fimg_create(&dessin, 3200, 2400, 3);
fimg_draw_something(&dessin);
fimg_dump_to_file(&dessin, "dessin.fimg", 0);
fimg_destroy(&dessin);
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);

puts("");
}
/* --------------------------------------------------------------------- */
int parse_WxH(char *str, int *pw, int *ph)
{
// char			*ptr;
int			foo, w, h;

#if DEBUG_LEVEL
fprintf(stderr, ">>> %s ( '%s' %p %p )\n", __func__,
				str, pw, ph);
#endif

foo = sscanf(str, "%dx%d", &w, &h);
if (2 != foo) {
	fprintf(stderr, "%s : arg '%s' is invalid\n", __func__, str);
	return foo;
	}

*pw = w;	*ph = h;

return 2;
}
/* --------------------------------------------------------------------- */
void help(int k)
{
puts("Options :");
puts("\t-d WxH\timage size");
exit(0);
}
/* --------------------------------------------------------------------- */

int main(int argc, char *argv[])
{
FloatImg	fimgA, fimgB;
int		foo, opt;
int		W = 800, H = 600;
double		tb;

while ((opt = getopt(argc, argv, "d:hv")) != -1) {
	switch(opt) {
		case 'd':	parse_WxH(optarg, &W, &H);
				break;
		case 'h':	help(0);		break;
		case 'v':	verbosity++;		break;
		}
	}

if (verbosity) fimg_print_version(0);

fimg_create(&fimgA, W, H, 3);
fimg_create(&fimgB, W, H, 3);

fimg_timer_set(0);
fimg_drand48(&fimgB, 100.0);
fimg_drand48(&fimgA, 100.0);
add(&fimgA, &fimgB);
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);
foo = fimg_save_as_pnm(&fimgA, "drand48.pnm", 0);

fimg_destroy(&fimgA);
fimg_destroy(&fimgB);


return 0;
}

/* --------------------------------------------------------------------- */