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[rainbowstream.git] / rainbowstream / c_image.py
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0418d443 1from PIL import Image
60431c3b 2from os.path import join, dirname, getmtime, exists, expanduser
816e305f 3from .config import *
60431c3b 4
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5import ctypes
6import sys
7import os
8
60431c3b 9
10def call_c():
11 library = expanduser('~/.image.so')
12 sauce = join(dirname(__file__), 'image.c')
13 if not exists(library) or getmtime(sauce) > getmtime(library):
14 build = "gcc -fPIC -shared -o %s %s" % (library, sauce)
15 assert os.system(build + " >/dev/null 2>&1") == 0
991c30af 16 image_c = ctypes.cdll.LoadLibrary(library)
60431c3b 17 image_c.init()
18 return image_c.rgb_to_ansi
19
20rgb2short = call_c()
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21
22
60431c3b 23def pixel_print(ansicolor):
24 sys.stdout.write('\033[48;5;%sm \033[0m' % (ansicolor))
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25
26
60431c3b 27def image_to_display(path):
991c30af 28 i = Image.open(path)
60431c3b 29 i = i.convert('RGBA')
991c30af 30 w, h = i.size
60431c3b 31 i.load()
32 rows, columns = os.popen('stty size', 'r').read().split()
816e305f 33 width = min(w, int(columns) - 2 * IMAGE_SHIFT)
60431c3b 34 height = int(float(h) * (float(width) / float(w)))
35 height //= 2
f5677fb1 36 i = i.resize((width, height), Image.ANTIALIAS)
816e305f 37 height = min(height, IMAGE_MAX_HEIGHT)
60431c3b 38
39 for y in xrange(height):
816e305f 40 print ' ' * IMAGE_SHIFT,
60431c3b 41 for x in xrange(width):
991c30af 42 p = i.getpixel((x, y))
60431c3b 43 r, g, b = p[:3]
991c30af 44 pixel_print(rgb2short(r, g, b))
60431c3b 45 print ''
46
47if __name__ == '__main__':
48 image_to_display(sys.argv[1])