mirror of
https://github.com/KrisKennaway/ii-vision.git
synced 2024-12-21 05:30:20 +00:00
a6f32886cd
bytemap, (page,offset) memory map) - add a FlatMemoryMap that is a linear 8K array - add converter methods and default constructors that allow converting between them - use MemoryMap as the central representation used by the video encoder
169 lines
5.0 KiB
Python
169 lines
5.0 KiB
Python
import unittest
|
|
|
|
import numpy as np
|
|
|
|
import opcodes
|
|
import screen
|
|
import video
|
|
|
|
|
|
class TestHammingWeight(unittest.TestCase):
|
|
def testHammingWeight(self):
|
|
self.assertEqual(0, video.hamming_weight(0))
|
|
self.assertEqual(1, video.hamming_weight(0b1))
|
|
self.assertEqual(1, video.hamming_weight(0b100))
|
|
self.assertEqual(3, video.hamming_weight(0b101100))
|
|
self.assertEqual(7, video.hamming_weight(0b11111110))
|
|
|
|
|
|
class TestVideo(unittest.TestCase):
|
|
def testEncodeEmptyFrame(self):
|
|
f = screen.MemoryMap(screen_page=1)
|
|
v = video.Video()
|
|
|
|
self.assertEqual([], list(v.encode_frame(f)))
|
|
|
|
def testEncodeOnePixel(self):
|
|
f = screen.HGR140Bitmap()
|
|
a = np.zeros((f.YMAX, f.XMAX), dtype=bool)
|
|
a[0, 0] = True
|
|
|
|
f = screen.HGR140Bitmap(a).to_memory_map(screen_page=1)
|
|
|
|
v = video.Video()
|
|
|
|
want = [
|
|
opcodes.SetPage(0x20),
|
|
opcodes.SetContent(0x03),
|
|
opcodes.Store(0x00),
|
|
]
|
|
got = list(v.encode_frame(f))
|
|
self.assertListEqual(want, got)
|
|
|
|
|
|
class TestIndexPage(unittest.TestCase):
|
|
def testFullPageSameValue(self):
|
|
"""Constant data with nonzero weights should return single run"""
|
|
v = video.Video()
|
|
|
|
data = np.ones((256,), dtype=np.uint8)
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = [(256, 0, 1, 256)]
|
|
got = list(v._index_page(video.hamming_weight(data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
def testFullPageZeroValue(self):
|
|
"""Zero data with 0 weights should return nothing"""
|
|
v = video.Video()
|
|
|
|
data = np.zeros((256,), dtype=np.uint8)
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = []
|
|
got = list(v._index_page(video.hamming_weight(data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
def testFullPageZeroValueWithDiff(self):
|
|
"""Zero data with nonzero weights should return single run"""
|
|
v = video.Video()
|
|
|
|
old_data = np.ones((256,), dtype=np.uint8)
|
|
|
|
data = np.zeros((256,), dtype=np.uint8)
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = [(256, 0, 0, 256)]
|
|
got = list(v._index_page(video.hamming_weight(old_data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
def testSingleRun(self):
|
|
"""Single run of nonzero data"""
|
|
v = video.Video()
|
|
|
|
data = np.zeros((256,), dtype=np.uint8)
|
|
for i in range(5):
|
|
data[i] = 1
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = [(5, 0, 1, 5)]
|
|
got = list(v._index_page(video.hamming_weight(data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
def testTwoRuns(self):
|
|
"""Two consecutive runs of nonzero data"""
|
|
v = video.Video()
|
|
|
|
data = np.zeros((256,), dtype=np.uint8)
|
|
for i in range(5):
|
|
data[i] = 1
|
|
for i in range(5, 10):
|
|
data[i] = 2
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = [(5, 0, 1, 5), (5, 5, 2, 5)]
|
|
got = list(v._index_page(video.hamming_weight(data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
def testShortRun(self):
|
|
"""Run that is too short to encode as RLE opcode"""
|
|
v = video.Video()
|
|
|
|
data = np.zeros((256,), dtype=np.uint8)
|
|
for i in range(2):
|
|
data[i] = 1
|
|
|
|
# total_xor_difference, start_offset, content, run_length
|
|
want = [(1, 0, 1, 1), (1, 1, 1, 1)]
|
|
got = list(v._index_page(video.hamming_weight(data), data))
|
|
|
|
self.assertEqual(want, got)
|
|
|
|
|
|
class TestEncodeDecode(unittest.TestCase):
|
|
def testEncodeDecode(self):
|
|
for _ in range(10):
|
|
s = video.Video(frame_rate=1)
|
|
screen_cls = screen.HGR140Bitmap
|
|
|
|
im = np.random.randint(
|
|
0, 2, (screen_cls.YMAX, screen_cls.XMAX), dtype=np.bool)
|
|
f = screen_cls(im).to_memory_map(screen_page=1)
|
|
|
|
_ = bytes(s.emit_stream(s.encode_frame(f)))
|
|
|
|
# assert that the screen decodes to the original bitmap
|
|
bm = screen_cls.from_bytemap(s.memory_map.to_bytemap()).bitmap
|
|
|
|
self.assertTrue(np.array_equal(bm, im))
|
|
|
|
def testEncodeDecodeTwoFrames(self):
|
|
|
|
for _ in range(10):
|
|
s = video.Video(frame_rate=1)
|
|
screen_cls = screen.HGR140Bitmap
|
|
|
|
im = np.random.randint(
|
|
0, 2, (screen_cls.YMAX, screen_cls.XMAX), dtype=np.bool)
|
|
f = screen_cls(im).to_memory_map(screen_page=1)
|
|
_ = bytes(s.emit_stream(s.encode_frame(f)))
|
|
|
|
im2 = np.random.randint(
|
|
0, 2, (screen_cls.YMAX, screen_cls.XMAX), dtype=np.bool)
|
|
f = screen_cls(im2).to_memory_map(screen_page=1)
|
|
_ = bytes(s.emit_stream(s.encode_frame(f)))
|
|
|
|
# assert that the screen decodes to the original bitmap
|
|
bm = screen_cls.from_bytemap(s.memory_map.to_bytemap()).bitmap
|
|
|
|
self.assertTrue(np.array_equal(bm, im2))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
unittest.main()
|