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fb14a20380
(3-pixel) sequences that may be modified when storing bytes to the DHGR display. This relies on producing an efficient linear representation of the DHGR framebuffer in terms of a packed 28-bit representation of (Aux, Main, Aux, Main) screen bytes.
100 lines
3.2 KiB
Python
100 lines
3.2 KiB
Python
import unittest
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from colours import DHGRColours
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import make_data_tables
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class TestMakeDataTables(unittest.TestCase):
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def test_pixel_string(self):
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pixels = (DHGRColours.BLACK, DHGRColours.WHITE, DHGRColours.ORANGE)
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self.assertEqual("0FC", make_data_tables.pixel_string(pixels))
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def test_pixels_influenced_by_byte_index(self):
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pixels = (
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DHGRColours.ORANGE,
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DHGRColours.GREEN,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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)
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self.assertEqual(
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(DHGRColours.ORANGE, DHGRColours.GREEN),
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make_data_tables.pixels_influenced_by_byte_index(pixels, 0)
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)
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pixels = (
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DHGRColours.BLACK,
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DHGRColours.BROWN,
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DHGRColours.YELLOW,
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DHGRColours.GREY1,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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)
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self.assertEqual(
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(DHGRColours.BROWN, DHGRColours.YELLOW, DHGRColours.GREY1),
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make_data_tables.pixels_influenced_by_byte_index(pixels, 1)
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)
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def test_int28_to_pixels(self):
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self.assertEqual(
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(
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.YELLOW,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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DHGRColours.BLACK,
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),
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tuple(
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make_data_tables.int28_to_pixels(
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0b00000000000000000000111000000000)
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)
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)
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self.assertEqual(
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(
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DHGRColours.BLACK,
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DHGRColours.WHITE,
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DHGRColours.BLACK,
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DHGRColours.WHITE,
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DHGRColours.BLACK,
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DHGRColours.WHITE,
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DHGRColours.BLACK,
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),
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tuple(
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make_data_tables.int28_to_pixels(
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0b0000111100001111000011110000)
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)
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)
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def test_map_to_mask32(self):
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byte_mask32 = [
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# 33222222222211111111110000000000 <- bit pos in uint32
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# 10987654321098765432109876543210
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# 0000GGGGFFFFEEEEDDDDCCCCBBBBAAAA <- pixel A..G
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# 3210321032103210321032103210 <- bit pos in A..G pixel
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0b00000000000000000000000011111111, # byte 0 influences A,B
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0b00000000000000001111111111110000, # byte 1 influences B,C,D
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0b00000000111111111111000000000000, # byte 2 influences D,E,F
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0b00001111111100000000000000000000, # byte 3 influences F,G
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]
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int8_max = 2 ** 8 - 1
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int12_max = 2 ** 12 - 1
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self.assertEqual(
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make_data_tables.map_int8_to_mask32_0(int8_max), byte_mask32[0])
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self.assertEqual(
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make_data_tables.map_int12_to_mask32_1(int12_max), byte_mask32[1])
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self.assertEqual(
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make_data_tables.map_int12_to_mask32_2(int12_max), byte_mask32[2])
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self.assertEqual(
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make_data_tables.map_int8_to_mask32_3(int8_max), byte_mask32[3])
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if __name__ == '__main__':
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unittest.main()
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