more experiments

Fonderie/glitches.h

@@ -2,6 +2,8 @@
  * 		glitches.h
  */
 
+int do_something(FloatImg *pimg, int notused);
+
 int kill_a_random_line(FloatImg *pvictime, float level, int bits);
 int kill_a_few_lines(FloatImg *who, float fval, int number);
 int random_blocks(FloatImg *picture, int percent);