making operators from garbage

lib/t.c

@@ -2,35 +2,63 @@
 #include  <stdlib.h>
 #include  <unistd.h>
 #include  <string.h>
+#include  <math.h>
 
 #include  "../floatimg.h"
 
 int		verbosity;
 
+/* ---------------------------------------------------------------- */
+int petit_dessin(FloatImg *img)
+{
+int		x, y;
+float		r, g, b;
+
+for (y=0; y<img->height; y++) {
+
+	r = (float)y / (float)img->height;
+
+	for (x=0; x<img->width; x++) {
+
+		g = (float)x / (float)img->width;
+		b = 0.0;;
+
+		fimg_plot_rgb(img, x, y, r, g, b);
+
+		}
+
+	}
+
+return -1;
+}
+/* ---------------------------------------------------------------- */
 
 int main(int argc, char *argv[])
 {
 int		foo;
-FloatImg 	fimg;
+FloatImg 	dessin, noise, result;
 int		datas[3];
-char		*fname = "foo.fimg";
+
 verbosity = 1;
 
-fimg_print_version(0);
+fimg_print_version(1);
 
-foo = fimg_create(&fimg, 640, 480, 3);
-printf("retour fimg_create ---> %d\n", foo);
+foo = fimg_create(&dessin, 640, 480, 3);
+petit_dessin(&dessin);
+fimg_save_as_pnm(&dessin, "dessin.pnm",  0);
 
-fimg_printhead(&fimg);
-fimg_describe(&fimg, "vroum");
+foo = fimg_create(&noise, 640, 480, 3);
+fimg_drand48(&noise, 1.0);
+fimg_save_as_pnm(&noise, "noise.pnm",  0);
 
-// fimg_save_as_pnm(&fimg, "foo.pnm",  0);
-foo = fimg_dump_to_file(&fimg, fname, 0);
+foo = fimg_create(&result, 640, 480, 3);
 
-foo = fimg_fileinfos("foo.fimg", datas);
-
-printf("%s : largeur %d hauteur %d type %d\n",
-		fname, datas[0], datas[1], datas[2]);
+foo = fimg_add(&dessin, &noise, &result);
+fimg_save_as_pnm(&result, "r_add.pnm",  0);
+foo = fimg_sub(&dessin, &noise, &result);
+fimg_save_as_pnm(&result, "r_sub.pnm",  0);
+foo = fimg_mul(&dessin, &noise, &result);
+fimg_save_as_pnm(&result, "r_mul.pnm",  0);
 
 return 0;
 }