From 99a8cf5b9b842d74021dee32cf1a4d495c152560 Mon Sep 17 00:00:00 2001
From: Piotr Dobrowolski <admin@tastycode.pl>
Date: Sat, 12 May 2018 14:54:51 +0200
Subject: [PATCH] Quick and dirty virtual xserver forwarded to ledpanel, enjoy

---
 launch-led | 29 +++++++++++++++++++++++++++++
 send.py    | 21 +++++++++++++++++++++
 2 files changed, 50 insertions(+)
 create mode 100755 launch-led
 create mode 100644 send.py

diff --git a/launch-led b/launch-led
new file mode 100755
index 0000000..23f3ce7
--- /dev/null
+++ b/launch-led
@@ -0,0 +1,29 @@
+#!/bin/bash
+#
+# Usage: PULSE_SERVER=sound.waw.hackerspace.pl ./launch-led projectM-pulseaudio
+#
+
+trap 'pkill -P $$' SIGINT
+
+Xephyr -br -ac -noreset -screen 128x128 :1 &
+
+export DISPLAY=:1
+
+(while true; do
+    gst-launch-1.0 -q ximagesrc use-damage=0 show-pointer=false endx=128 endy=128 ! queue ! videoconvert ! videorate  ! video/x-raw,format=RGB,width=128,height=128 ! fdsink  | python send.py 10.8.1.26 128 128
+    sleep 0.5
+done) &
+
+# ...resize current window to screen size
+(#while true; do
+    sleep 2
+    xdotool search --onlyvisible . windowmove 0 0 windowsize 129 129
+    sleep 10
+    xdotool search --onlyvisible . windowmove 0 0 windowsize 129 129
+#done
+) &
+sleep 1
+
+$*
+
+pkill -P $$
diff --git a/send.py b/send.py
new file mode 100644
index 0000000..1dcc37e
--- /dev/null
+++ b/send.py
@@ -0,0 +1,21 @@
+import sys
+import struct
+import socket
+
+if __name__ == "__main__":
+    target = sys.argv[1]
+    width = int(sys.argv[2])
+    height = int(sys.argv[3])
+
+    size = width*height*3
+
+    prefix = struct.pack(
+        '!BBHBB', 0x9c, 0xda, size, 0, 1)
+
+    sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
+
+    while True:
+        buf = prefix + sys.stdin.read(size) + '\x36'
+        if len(buf) == 7:
+            exit(1)
+        sock.sendto(buf, (target, 65506))