added Comm Build System

1 files changed, 151 insertions, 0 deletions

diff --git a/build/pypng/texttopng b/build/pypng/texttopng
new file mode 100644
index 0000000..ab0c690
--- /dev/null
+++ b/build/pypng/texttopng
@@ -0,0 +1,151 @@
+#!/usr/bin/env python
+# $URL: http://pypng.googlecode.com/svn/trunk/code/texttopng $
+# $Rev: 132 $
+# Script to renders text as a PNG image.
+
+from array import array
+import itertools
+
+font = {
+  32: '0000000000000000',
+  33: '0010101010001000',
+  34: '0028280000000000',
+  35: '0000287c287c2800',
+  36: '00103c5038147810',
+  37: '0000644810244c00',
+  38: '0020502054483400',
+  39: '0010100000000000',
+  40: '0008101010101008',
+  41: '0020101010101020',
+  42: '0010543838541000',
+  43: '000010107c101000',
+  44: '0000000000301020',
+  45: '000000007c000000',
+  46: '0000000000303000',
+  47: '0000040810204000',
+  48: '0038445454443800',
+  49: '0008180808080800',
+  50: '0038043840407c00',
+  51: '003c041804043800',
+  52: '00081828487c0800',
+  53: '0078407804047800',
+  54: '0038407844443800',
+  55: '007c040810101000',
+  56: '0038443844443800',
+  57: '0038443c04040400',
+  58: '0000303000303000',
+  59: '0000303000301020',
+  60: '0004081020100804',
+  61: '0000007c007c0000',
+  62: '0040201008102040',
+  63: '0038440810001000',
+  64: '00384c545c403800',
+  65: '0038447c44444400',
+  66: '0078447844447800',
+  67: '0038444040443800',
+  68: '0070484444487000',
+  69: '007c407840407c00',
+  70: '007c407840404000',
+  71: '003844405c443c00',
+  72: '0044447c44444400',
+  73: '0038101010103800',
+  74: '003c040404443800',
+  75: '0044487048444400',
+  76: '0040404040407c00',
+  77: '006c545444444400',
+  78: '004464544c444400',
+  79: '0038444444443800',
+  80: '0078447840404000',
+  81: '0038444444443c02',
+  82: '0078447844444400',
+  83: '0038403804047800',
+  84: '007c101010101000',
+  85: '0044444444443c00',
+  86: '0044444444281000',
+  87: '0044445454543800',
+  88: '0042241818244200',
+  89: '0044443810101000',
+  90: '007c081020407c00',
+  91: '0038202020202038',
+  92: '0000402010080400',
+  93: '0038080808080838',
+  94: '0010284400000000',
+  95: '000000000000fe00',
+  96: '0040200000000000',
+  97: '000038043c443c00',
+  98: '0040784444447800',
+  99: '0000384040403800',
+  100: '00043c4444443c00',
+  101: '000038447c403c00',
+  102: '0018203820202000',
+  103: '00003c44443c0438',
+  104: '0040784444444400',
+  105: '0010003010101000',
+  106: '0010003010101020',
+  107: '0040404870484400',
+  108: '0030101010101000',
+  109: '0000385454444400',
+  110: '0000784444444400',
+  111: '0000384444443800',
+  112: '0000784444784040',
+  113: '00003c44443c0406',
+  114: '00001c2020202000',
+  115: '00003c4038047800',
+  116: '0020203820201800',
+  117: '0000444444443c00',
+  118: '0000444444281000',
+  119: '0000444454543800',
+  120: '0000442810284400',
+  121: '00004444443c0438',
+  122: '00007c0810207c00',
+  123: '0018202060202018',
+  124: '0010101000101010',
+  125: '003008080c080830',
+  126: '0020540800000000',
+}
+
+def char(i):
+    """Get image data for the character `i` (a one character string).
+    Returned as a list of rows.  Each row is a tuple containing the
+    packed pixels.
+    """
+
+    i = ord(i)
+    if i not in font:
+        return [(0,)]*8
+    return map(lambda row: (ord(row),), font[i].decode('hex'))
+
+def texttoraster(m):
+    """Convert string *m* to a raster image (by rendering it using the
+    font in *font*).  A triple of (*width*, *height*, *pixels*) is
+    returned; *pixels* is in boxed row packed pixel format.
+    """
+
+    # Assumes monospaced font.
+    x = 8*len(m)
+    y = 8
+    return x,y,itertools.imap(lambda row: itertools.chain(*row),
+                              zip(*map(char, m)))
+
+
+def render(message, out):
+    import png
+
+    x,y,pixels = texttoraster(message)
+    w = png.Writer(x, y, greyscale=True, bitdepth=1)
+    w.write_packed(out, pixels)
+    out.flush()
+
+def main(argv=None):
+    import sys
+
+    if argv is None:
+        argv = sys.argv
+    if len(argv) > 1:
+        message = argv[1]
+    else:
+        message = sys.stdin.read()
+    render(message, sys.stdout)
+
+if __name__ == '__main__':
+    main()