FloatImg/essai.c

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2019-03-04 02:22:55 +11:00
/*
testing some random funcs.
*/
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <string.h>
#include "floatimg.h"
/* --------------------------------------------------------------------- */
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 main(int argc, char *argv[])
{
FloatImg fimgA, fimgB;
int foo;
double tb;
fimg_print_version(0);
#define W 2000
#define H 1700
fait_un_dessin("dessin.fimg");
fimg_create(&fimgA, W, H, 3);
fimg_create(&fimgB, W, H, 3);
fimg_draw_something(&fimgA);
fimg_timer_set(0);
fimg_drand48(&fimgB, 100.0);
tb = fimg_timer_get(0);
fprintf(stderr, "%s = %f seconds\n", __func__, tb);
foo = fimg_save_as_pnm(&fimgB, "drand48.pnm", 0);
/*
fimg_printhead(&fimgA); fimg_printhead(&fimgB);
fimg_describe(&fimgA, "image A");
*/
add(&fimgA, &fimgB);
foo = fimg_save_as_pnm(&fimgA, "t.pnm", 0);
fprintf(stderr, "save as pnm -> %d\n", foo);
foo = fimg_dump_to_file(&fimgA, "t.fimg", 0);
fprintf(stderr, "save as fimg -> %d\n", foo);
fimg_destroy(&fimgA);
fimg_destroy(&fimgB);
return 0;
}
/* --------------------------------------------------------------------- */