added test generator

Author: letoram

README.md

@@ -11,6 +11,9 @@ fifo LED protocol as part of arcan >= 0.5.2.
             i2c connection in order to control PWM adafruit
 	    neopixel- LEDs.
 
+	testgen - simple stress-test to randomly flash lights,
+	          make and run like ./test | g810-led --aled -
+
 # Setup/Use
 
 fifos can be configured via:
@@ -19,7 +22,7 @@ fifos can be configured via:
     mkfifo /path/to/fifo2
 
 and so on.
-    
+
 to tell arcan about the presence of the LED devices (scanned on startup):
 
     arcan_db add_appl_kv arcan ext_led /path/to/fifo

testgen/Makefile

@@ -0,0 +1,2 @@
+test: test.c
+	gcc -o test test.c

testgen/test.c

@@ -0,0 +1,24 @@
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+int main(int argc, char* argv[])
+{
+	char rgb[3] = {'r', 'g', 'b'};
+	int i;
+
+	while(1){
+/* reset all, buffer/apply immediately randomly */
+		putchar('A'); putchar(0x00); putchar('i');
+		putchar(0x00); putchar('c'); putchar(rand() % 2);
+
+/* set one random channel to one random value */
+		for (i=0;i<127;i++){
+			putchar('a'); putchar(i); putchar(rgb[rand() % 3]);
+			putchar(rand() % 255); putchar('c'); putchar(rand() % 2);
+		}
+		fflush(stdout);
+//		sleep(1);
+	}
+	return EXIT_SUCCESS;
+}