move extractor to func/

funcs/geometry.c

@@ -8,6 +8,8 @@
 
 #include  "../floatimg.h"
 
+extern int		verbosity;
+
 /* --------------------------------------------------------------------- */
 /*
  *	really crude function, need more work...
@@ -102,4 +104,35 @@ for (y=0; y<hd; y++) {
 return 0;
 }
 /* --------------------------------------------------------------------- */
+int fimg_extractor(FloatImg *in, FloatImg *out, Rectangle *rect)
+{
+int		foo;
+int		xs, ys, xd, yd;
+int		count;
+float		rgb[3];
+
+if (verbosity) {
+	fimg_describe(in,  "source");
+	fimg_describe(out, "destination");
+	// print_rectangle(rect);
+	}
+
+count = 0;
+for (yd=0; yd<rect->h; yd++) {
+	ys = yd + rect->y;
+	if ((ys<0) || (ys>=in->height)) continue;
+	for (xd=0; xd<rect->w; xd++) {
+		xs = xd + rect->x;
+		if ((xs<0) || (xs>=in->width)) continue;
+		fimg_get_rgb(in,  xs, ys, rgb);
+		fimg_put_rgb(out, xd, yd, rgb);
+		count++;
+		}
+	}
+
+// fprintf(stderr, "%s: %d pix moved\n", __func__, count);
+
+return 0;
+}
+/* --------------------------------------------------------------------- */