1  # The MIT License (MIT)
 2  #
 3  # Copyright (c) 2019 Matt Land
 4  #
 5  # Permission is hereby granted, free of charge, to any person obtaining a copy
 6  # of this software and associated documentation files (the "Software"), to deal
 7  # in the Software without restriction, including without limitation the rights
 8  # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 9  # copies of the Software, and to permit persons to whom the Software is
10  # furnished to do so, subject to the following conditions:
11  #
12  # The above copyright notice and this permission notice shall be included in
13  # all copies or substantial portions of the Software.
14  #
15  # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
16  # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
17  # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
18  # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
19  # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
20  # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
21  # THE SOFTWARE.
22  """
23  `adafruit_imageload.tests.test_bmp_indexed_load`
24  ====================================================
25  
26  * Author(s):  Matt Land
27  
28  """
29  
30  import os
31  from unittest import TestCase
32  from adafruit_imageload import load
33  from .displayio_shared_bindings import Bitmap_C_Interface, Palette_C_Interface
34  
35  
36  class TestBmpIndexedLoad(TestCase):
37      def test_order_bgra_to_rgba(self):
38          test_file = os.path.join(
39              os.path.dirname(__file__), "..", "examples", "images", "4bit.bmp"
40          )
41  
42          bitmap, palette = load(
43              filename=test_file, bitmap=Bitmap_C_Interface, palette=Palette_C_Interface
44          )
45          self.assertTrue(isinstance(bitmap, Bitmap_C_Interface), bitmap)
46          self.assertEqual(16, bitmap.colors)
47          self.assertEqual(15, bitmap.width)
48          self.assertEqual(17, bitmap.height)
49  
50          bitmap.validate()
51          # uncomment line below to see a string representation of the object
52          # self.fail(str(bitmap))
53          self.assertEqual(5, bitmap[0])  # check first row
54          self.assertEqual(5, bitmap[11, 1])  # check second row
55  
56          self.assertEqual(16, palette.num_colors)
57          palette.validate()
58          # make sure bye order swapped
59          self.assertTrue(palette[4] in [b"\x9d\x00\xff\x00", b"\x9d\x00\xff"])
60          # uncomment line below to see a string representation of the object
61          # self.fail(str(palette))