refactoring. Incomplete panorama mode.

convert.py

@@ -10,6 +10,10 @@ import sys
 import docopt
 from PIL import Image
 
+TILES_PER_LINE = 20
+HEIGHT = 144
+WIDTH = 160
+
 arguments = docopt(__doc__)
 
 colors = [(0xff, 0xff, 0xff), (0xaa, 0xaa, 0xaa), (0x55,0x55,0x55), (0x00,0x00,0x00)]
@@ -27,5 +31,5 @@ for line in l:
         d.append(line)
 
 b = [bytes.fromhex(h.strip()) for h in d]
-image = twobpp.convert_photo(b, colors)
+image = twobpp.convert_photo(b, colors, TILES_PER_LINE, WIDTH, HEIGHT)
 image.save(arguments["<output>"])

download.py

@@ -9,6 +9,7 @@ Usage:
 
 Options:
     -b amount  Batch Mode, Downloads the specified amount of images at once.
+    -p         Panorama mode. Works with print panoramas on the camera.
 '''
 
 import twobpp
@@ -17,6 +18,10 @@ import serial
 from docopt import docopt
 from PIL import Image
 
+TILES_PER_LINE = 20
+HEIGHT = 144
+WIDTH = 160
+
 arguments = docopt(__doc__)
 
 colors = [(0xff, 0xff, 0xff), (0xaa, 0xaa, 0xaa), (0x55,0x55,0x55), (0x00,0x00,0x00)]
@@ -40,7 +45,7 @@ for photo_number in range(int(runs)):
             d.append(line)
 
     b = [bytes.fromhex(h.strip().decode()) for h in d]
-    image = twobpp.convert_photo(b, colors)
+    image = twobpp.convert_photo(b, colors, TILES_PER_LINE, WIDTH, HEIGHT)
     if runs != 1:
         p = arguments["<path>"].split(".")
         image.save(f"{p[0]}-{photo_number}.{p[1]}")

twobpp.py

@@ -1,10 +1,6 @@
 # twobpp.py - functions for the gameboy 2bpp graphics format and gameboy camera
 from PIL import Image
 
-TILES_PER_LINE = 20
-HEIGHT = 144
-WIDTH = 160
-
 def chunks(l, n):
     """Yield successive n-sized chunks from l."""
     for i in range(0, len(l), n):
@@ -26,22 +22,22 @@ def decode_line(b1, b2):
         line.append((hi_bit << 1) | lo_bit)
     return line
 
-def convert_photo(byte_seq, colors):
+def convert_photo(byte_seq, colors, tiles_per_line, width, height):
     """converts the sequence of bytes from a gameboy camera image into a pillow image."""
 
     tiles = [decode_tile(l) for l in byte_seq]
     tile_image = []
 
-    for t in chunks(tiles, TILES_PER_LINE):
+    for t in chunks(tiles, tiles_per_line):
         chunk = []
         for l in range(8):
             line = []
-            for tile in range(TILES_PER_LINE):
+            for tile in range(tiles_per_line):
                 line += t[tile][l]
             chunk += line
         tile_image += chunk
 
     image_data = [colors[x] for x in tile_image]
-    image = Image.new(mode='RGB',size=(WIDTH,HEIGHT))
+    image = Image.new(mode='RGB',size=(width,height))
     image.putdata(image_data)
     return image