diff --git a/python/bitmapfont.py b/python/bitmapfont.py
new file mode 100644
index 0000000000000000000000000000000000000000..6cd5a042ea45e6c824961f000996db3bd1323157
--- /dev/null
+++ b/python/bitmapfont.py
@@ -0,0 +1,123 @@
+#!/usr/bin/env python
+
+# 5x7 font from http://www.hwsw.no/snippets/5x7_LCD_font.php
+# every byte contains pixel data for one column, LSB is on top, MSB is ignored.
+FONT = {
+ " ": [0x00,0x00,0x00,0x00,0x00],
+ "!": [0x00,0x00,0x4F,0x00,0x00],
+ "\"": [0x00,0x07,0x00,0x07,0x00],
+ "#": [0x14,0x7F,0x14,0x7F,0x14],
+ "$": [0x24,0x2A,0x7F,0x2A,0x12],
+ "%": [0x23,0x13,0x08,0x64,0x62],
+ "&": [0x36,0x49,0x55,0x22,0x50],
+ "'": [0x00,0x05,0x03,0x00,0x00],
+ "(": [0x00,0x1C,0x22,0x41,0x00],
+ ")": [0x00,0x41,0x22,0x1C,0x00],
+ "*": [0x14,0x08,0x3E,0x08,0x14],
+ "+": [0x08,0x08,0x3E,0x08,0x08],
+ ",": [0x00,0x50,0x30,0x00,0x00],
+ "-": [0x08,0x08,0x08,0x08,0x08],
+ ".": [0x00,0x60,0x60,0x00,0x00],
+ "/": [0x20,0x10,0x08,0x04,0x02],
+
+ "0": [0x3E,0x51,0x49,0x45,0x3E],
+ "1": [0x00,0x42,0x7F,0x40,0x00],
+ "2": [0x42,0x61,0x51,0x49,0x46],
+ "3": [0x21,0x41,0x45,0x4B,0x31],
+ "4": [0x18,0x14,0x12,0x7F,0x10],
+ "5": [0x27,0x45,0x45,0x45,0x39],
+ "6": [0x3C,0x4A,0x49,0x49,0x30],
+ "7": [0x01,0x71,0x09,0x05,0x03],
+ "8": [0x36,0x49,0x49,0x49,0x36],
+ "9": [0x06,0x49,0x49,0x29,0x1E],
+ ":": [0x36,0x36,0x00,0x00,0x00],
+ ";": [0x56,0x36,0x00,0x00,0x00],
+ "<": [0x08,0x14,0x22,0x41,0x00],
+ "=": [0x14,0x14,0x14,0x14,0x14],
+ ">": [0x00,0x41,0x22,0x14,0x08],
+ "?": [0x02,0x01,0x51,0x09,0x06],
+
+ "@": [0x30,0x49,0x79,0x41,0x3E],
+ "A": [0x7E,0x11,0x11,0x11,0x7E],
+ "B": [0x7F,0x49,0x49,0x49,0x36],
+ "C": [0x3E,0x41,0x41,0x41,0x22],
+ "D": [0x7F,0x41,0x41,0x22,0x1C],
+ "E": [0x7F,0x49,0x49,0x49,0x41],
+ "F": [0x7F,0x09,0x09,0x09,0x01],
+ "G": [0x3E,0x41,0x49,0x49,0x7A],
+ "H": [0x7F,0x08,0x08,0x08,0x7F],
+ "I": [0x00,0x41,0x7F,0x41,0x00],
+ "J": [0x20,0x40,0x41,0x3F,0x01],
+ "K": [0x7F,0x08,0x14,0x22,0x41],
+ "L": [0x7F,0x40,0x40,0x40,0x40],
+ "M": [0x7F,0x02,0x0C,0x02,0x7F],
+ "N": [0x7F,0x04,0x08,0x10,0x7F],
+ "O": [0x3E,0x41,0x41,0x41,0x3E],
+
+ "P": [0x7F,0x09,0x09,0x09,0x06],
+ "Q": [0x3E,0x41,0x51,0x21,0x5E],
+ "R": [0x7F,0x09,0x19,0x29,0x46],
+ "S": [0x46,0x49,0x49,0x49,0x31],
+ "T": [0x01,0x01,0x7F,0x01,0x01],
+ "U": [0x3F,0x40,0x40,0x40,0x3F],
+ "V": [0x1F,0x20,0x40,0x20,0x1F],
+ "W": [0x3F,0x40,0x30,0x40,0x3F],
+ "X": [0x63,0x14,0x08,0x14,0x63],
+ "Y": [0x07,0x08,0x70,0x08,0x07],
+ "Z": [0x61,0x51,0x49,0x45,0x43],
+ "[": [0x00,0x7F,0x41,0x41,0x00],
+ "\\": [0x02,0x04,0x08,0x10,0x20],
+ "]": [0x00,0x41,0x41,0x7F,0x00],
+ "^": [0x04,0x02,0x01,0x02,0x04],
+ "_": [0x40,0x40,0x40,0x40,0x40],
+
+ "`": [0x00,0x01,0x02,0x04,0x00],
+ "a": [0x20,0x54,0x54,0x54,0x78],
+ "b": [0x7F,0x50,0x48,0x48,0x30],
+ "c": [0x38,0x44,0x44,0x44,0x20],
+ "d": [0x38,0x44,0x44,0x48,0x7F],
+ "e": [0x38,0x54,0x54,0x54,0x18],
+ "f": [0x08,0x7E,0x09,0x01,0x02],
+ "g": [0x0C,0x52,0x52,0x52,0x3E],
+ "h": [0x7F,0x08,0x04,0x04,0x78],
+ "i": [0x00,0x44,0x7D,0x40,0x00],
+ "j": [0x20,0x40,0x44,0x3D,0x00],
+ "k": [0x7F,0x10,0x28,0x44,0x00],
+ "l": [0x00,0x41,0x7F,0x40,0x00],
+ "m": [0x78,0x04,0x58,0x44,0x78],
+ "n": [0x7C,0x08,0x04,0x04,0x78],
+ "o": [0x38,0x44,0x44,0x44,0x38],
+
+ "p": [0x7C,0x14,0x14,0x14,0x08],
+ "q": [0x08,0x14,0x14,0x18,0x7C],
+ "r": [0x7C,0x08,0x04,0x04,0x08],
+ "s": [0x48,0x54,0x54,0x54,0x20],
+ "t": [0x04,0x3F,0x44,0x40,0x20],
+ "u": [0x3C,0x40,0x40,0x20,0x7C],
+ "v": [0x1C,0x20,0x40,0x20,0x1C],
+ "w": [0x3C,0x40,0x30,0x40,0x3C],
+ "x": [0x44,0x28,0x10,0x28,0x44],
+ "y": [0x0C,0x50,0x50,0x50,0x3C],
+ "z": [0x44,0x64,0x54,0x4C,0x44],
+ "{": [0x00,0x08,0x36,0x41,0x00],
+ "|": [0x00,0x00,0x7F,0x00,0x00],
+ "}": [0x00,0x41,0x36,0x08,0x00],
+ "~": [0x0C,0x02,0x0C,0x10,0x0C],
+ "\x7f": [0x55,0xAA,0x55,0xAA,0x55],
+}
+
+import client
+import clearscreen
+
+def test():
+ clearscreen.clear()
+ client.write(0,0,"Hello World!")
+ x = 0
+ y = 1
+ for c in sorted(FONT.keys()):
+ client.blit(x*client.PWIDTH, y*client.PHEIGHT,
+ client.PWIDTH, client.PHEIGHT, client.char_to_pixel_segment(c))
+ x += 1
+ if(x > 15):
+ x = 0
+ y += 1
diff --git a/python/client.py b/python/client.py
index 4a6b93014f7b34a755b40743d4f4d75eeb92f0d6..f294592b8605bc2cd7229510f345c5053dfcbbd8 100644
--- a/python/client.py
+++ b/python/client.py
@@ -1,6 +1,7 @@
#!/usr/bin/python
import os
+import bitmapfont
SPLIT_N = 1
SPLIT_I = 0
@@ -34,6 +35,10 @@ context = zmq.Context()
socket = context.socket(zmq.REQ)
socket.connect(SERVER)
+################################################################################
+# RAW PIXEL HANDLING
+################################################################################
+
def set_pixel(x, y, v):
x += WOFFSET
tx = struct.pack('<BiiB', 0, x, y, v)
@@ -56,3 +61,30 @@ def blit(x, y, w, h, pixels):
socket.send_multipart([msg, b''])
rx = socket.recv()
+################################################################################
+# TEXT RENDERING WITH BITMAP FONT
+################################################################################
+
+# return array of size PWIDTH * PHEIGHT (indexed by row, then column)
+def char_to_pixel_segment(c):
+ pixels = [0] * PWIDTH * PHEIGHT
+ if(c in bitmapfont.FONT.keys()):
+ for x in xrange(0, PWIDTH):
+ for y in xrange(0, PHEIGHT):
+ pix = (bitmapfont.FONT[c][x] & (1<<y)) >> y
+ pixels[y * PWIDTH + x] = pix
+ return pixels
+
+# write string, starting at segment x,y. no boundary checks are done, text may
+# be clipped at the border, in this case False is returned.
+def write(x, y, string):
+ for c in string:
+ blit(x*PWIDTH, y*PHEIGHT, PWIDTH, PHEIGHT, char_to_pixel_segment(c))
+ x += 1
+ if(x > NUM_SEG_X):
+ return False
+
+# write text at beginning of line and clear remaining horizontal space
+def writeline(y, string):
+ write(0, y, string)
+ write(len(string), y, ' ' * (NUM_SEG_X-len(string)))