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How to use _encode method in fMBT
Best Python code snippet using fMBT_python
fgx_encode.py
Source:fgx_encode.py 
...215class encoder(object):216 def __init__(self):217 # This is the output generated by calling `encode_gci()`218 self.output = bytearray([0]*0x8c000)219 # `_encode()` must maintain an offset/cursor into the output buffer220 self.offset = 0221 # The total number of iterations we've taken in `_encode()` calls222 self.total_iter = 0223 self.bytes_written = 0224 def _encode(self, count, val):225 result = 0226 num_iter = count227 if (num_iter == 0): return None228 while (count > 0):229 base_offset = (self.total_iter >> 3) & 0x1fffffff230 if (base_offset < 0x8c000):231 mask = self.total_iter & 0x00000007232 if ( val & ( 1 << (num_iter - 1) ) != 0 ):233 self.output[base_offset] = self.output[base_offset] | (1 << mask)234 self.total_iter += 1235 num_iter = num_iter - 1236 count = count - 1237 self.offset += 1238 self.bytes_written += 1239 return self.output[base_offset]240 def encode_gci(self, data):241 """242 Expects a `class replay` filled out by the decoder,243 (or imported from a file, maybe sometime down the road)244 """245 self._encode(8, data.tick)246 # Note that the following loops do not conditionally encode bits247 # based on the value of player_entry_size.248 self._encode(7, data.player_entry_size)249 self._encode(6, data.course_id)250 self._encode(32, data.unk_1)251 self._encode(32, data.unk_2)252 self._encode(5, data.player_array_entries)253 self._encode(3, data.unk_3)254 self._encode(2, data.unk_4)255 self._encode(1, data.unk_5)256 self._encode(7, data.unk_6)257 # Note that the array size is decoupled from player_array_size here258 for entry in data.player_array_dict:259 self._encode(1, entry['is_human'])260 self._encode(6, entry['char_id'])261 self._encode(5, entry['member_0x4'])262 self._encode(7, entry['accel_speed_slider'])263 self._encode(2, entry['member_0x2'])264 self._encode(1, entry['is_custom_ship'])265 if (entry['is_custom_ship'] == 1):266 for i in range(0, 33216):267 self._encode(8, entry['custom_ship_data'][i])268 for entry in data.unk_one_bit_array:269 self._encode(1, entry)270 for entry in data.unk_two_bit_array:271 self._encode(2, entry)272 self._encode(20, data.total_frames)273 self._encode(8, data.unk_array_entries)274 # Note that the array size is decoupled from unk_array_entries here275 for entry in data.unk_array:276 self._encode(14, entry['part_one'][0])277 self._encode(14, entry['part_one'][1])278 self._encode(4, entry['part_one'][2])279 self._encode(5, entry['part_one'][3])280 self._encode(5, entry['part_one'][4])281 self._encode(5, entry['part_one'][5])282 self._encode(5, entry['part_one'][6])283 self._encode(5, entry['part_one'][7])284 for word in entry['part_two']:285 self._encode(32, word)286 for word in entry['part_three']:287 self._encode(32, word)288 self._encode(14, data.replay_array_entries)289 # Note that the array size is decoupled from replay_array_entries here290 for entry in data.replay_array_dict:291 self._encode(8, entry['mask'])292 self._encode(8, entry['strafe'])293 self._encode(7, entry['accel'])294 self._encode(7, entry['brake'])295 self._encode(8, entry['frames'])296 self._encode(8, entry['steer_x'])297 self._encode(8, entry['steer_y'])298 print("Wrote {} bytes of encoded output".format(hex(self.bytes_written)))...
decode_test.py
Source:decode_test.py
...18from pw_build.generated_tests import Context, PyTest, TestGenerator, GroupOrTest19from pw_build.generated_tests import parse_test_generation_args20from pw_hdlc.decode import Frame, FrameDecoder, FrameStatus, NO_ADDRESS21from pw_hdlc.protocol import frame_check_sequence as fcs22def _encode(address: int, control: int, data: bytes) -> bytes:23 frame = bytearray([address, control]) + data24 frame += fcs(frame)25 frame = frame.replace(b'\x7d', b'\x7d\x5d')26 frame = frame.replace(b'\x7e', b'\x7d\x5e')27 return b''.join([b'\x7e', frame, b'\x7e'])28class Expected(NamedTuple):29 address: int30 control: bytes31 data: bytes32 status: FrameStatus = FrameStatus.OK33 @classmethod34 def error(cls, status: FrameStatus):35 assert status is not FrameStatus.OK36 return cls(NO_ADDRESS, b'', b'', status)37 def __eq__(self, other) -> bool:38 """Define == so an Expected and a Frame can be compared."""39 return (self.address == other.address and self.control == other.control40 and self.data == other.data and self.status is other.status)41_PARTIAL = fcs(b'\x0ACmsg\x5e')42_ESCAPED_FLAG_TEST_CASE = (43 b'\x7e\x0ACmsg\x7d\x7e' + _PARTIAL + b'\x7e',44 [45 Expected.error(FrameStatus.FRAMING_ERROR),46 Expected.error(FrameStatus.FRAMING_ERROR),47 ],48)49TEST_CASES: Tuple[GroupOrTest[Tuple[bytes, List[Expected]]], ...] = (50 'Empty payload',51 (_encode(0, 0, b''), [Expected(0, b'\0', b'')]),52 (_encode(55, 0x99, b''), [Expected(55, b'\x99', b'')]),53 (_encode(55, 0x99, b'') * 3, [Expected(55, b'\x99', b'')] * 3),54 'Simple one-byte payload',55 (_encode(0, 0, b'\0'), [Expected(0, b'\0', b'\0')]),56 (_encode(123, 0, b'A'), [Expected(123, b'\0', b'A')]),57 'Simple multi-byte payload',58 (_encode(0, 0, b'Hello, world!'), [Expected(0, b'\0', b'Hello, world!')]),59 (_encode(123, 0, b'\0\0\1\0\0'), [Expected(123, b'\0', b'\0\0\1\0\0')]),60 'Escaped one-byte payload',61 (_encode(1, 2, b'\x7e'), [Expected(1, b'\2', b'\x7e')]),62 (_encode(1, 2, b'\x7d'), [Expected(1, b'\2', b'\x7d')]),63 (_encode(1, 2, b'\x7e') + _encode(1, 2, b'\x7d'),64 [Expected(1, b'\2', b'\x7e'),65 Expected(1, b'\2', b'\x7d')]),66 'Escaped address',67 (_encode(0x7e, 0, b'A'), [Expected(0x7e, b'\0', b'A')]),68 (_encode(0x7d, 0, b'B'), [Expected(0x7d, b'\0', b'B')]),69 'Escaped control',70 (_encode(0, 0x7e, b'C'), [Expected(0, b'\x7e', b'C')]),71 (_encode(0, 0x7d, b'D'), [Expected(0, b'\x7d', b'D')]),72 'Escaped address and control',73 (_encode(0x7e, 0x7d, b'E'), [Expected(0x7e, b'\x7d', b'E')]),74 (_encode(0x7d, 0x7e, b'F'), [Expected(0x7d, b'\x7e', b'F')]),75 (_encode(0x7e, 0x7e, b'\x7e'), [Expected(0x7e, b'\x7e', b'\x7e')]),76 'Multiple frames separated by single flag',77 (_encode(0, 0, b'A')[:-1] + _encode(1, 2, b'123'),78 [Expected(0, b'\0', b'A'),79 Expected(1, b'\2', b'123')]),80 (_encode(0xff, 0, b'Yo')[:-1] * 3 + b'\x7e',81 [Expected(0xff, b'\0', b'Yo')] * 3),82 'Ignore empty frames',83 (b'\x7e\x7e', []),84 (b'\x7e' * 10, []),85 (b'\x7e\x7e' + _encode(1, 2, b'3') + b'\x7e' * 5,86 [Expected(1, b'\2', b'3')]),87 (b'\x7e' * 10 + _encode(1, 2, b':O') + b'\x7e' * 3 + _encode(3, 4, b':P'),88 [Expected(1, b'\2', b':O'),89 Expected(3, b'\4', b':P')]),90 'Cannot escape flag',91 (b'\x7e\xAA\x7d\x7e\xab\x00Hello' + fcs(b'\xab\0Hello') + b'\x7e', [92 Expected.error(FrameStatus.FRAMING_ERROR),93 Expected(0xab, b'\0', b'Hello'),94 ]),95 _ESCAPED_FLAG_TEST_CASE,96 'Frame too short',97 (b'\x7e1\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),98 (b'\x7e12\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),99 (b'\x7e12345\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),100 'Incorrect frame check sequence',101 (b'\x7e123456\x7e', [Expected.error(FrameStatus.FCS_MISMATCH)]),102 (b'\x7e\1\2msg\xff\xff\xff\xff\x7e',103 [Expected.error(FrameStatus.FCS_MISMATCH)]),104 (_encode(0xA, 0xB, b'???')[:-2] + _encode(1, 2, b'def'), [105 Expected.error(FrameStatus.FCS_MISMATCH),106 Expected(1, b'\2', b'def'),107 ]),108 'Invalid escape in address',109 (b'\x7e\x7d\x7d\0' + fcs(b'\x5d\0') + b'\x7e',110 [Expected.error(FrameStatus.FRAMING_ERROR)]),111 'Invalid escape in control',112 (b'\x7e\0\x7d\x7d' + fcs(b'\0\x5d') + b'\x7e',113 [Expected.error(FrameStatus.FRAMING_ERROR)]),114 'Invalid escape in data',115 (b'\x7e\0\1\x7d\x7d' + fcs(b'\0\1\x5d') + b'\x7e',116 [Expected.error(FrameStatus.FRAMING_ERROR)]),117 'Frame ends with escape',118 (b'\x7e\x7d\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),119 (b'\x7e\1\x7d\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),120 (b'\x7e\1\2abc\x7d\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),121 (b'\x7e\1\2abcd\x7d\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),122 (b'\x7e\1\2abcd1234\x7d\x7e', [Expected.error(FrameStatus.FRAMING_ERROR)]),123 'Inter-frame data is only escapes',124 (b'\x7e\x7d\x7e\x7d\x7e', [125 Expected.error(FrameStatus.FRAMING_ERROR),126 Expected.error(FrameStatus.FRAMING_ERROR),127 ]),128 (b'\x7e\x7d\x7d\x7e\x7d\x7d\x7e', [129 Expected.error(FrameStatus.FRAMING_ERROR),130 Expected.error(FrameStatus.FRAMING_ERROR),131 ]),132 'Data before first flag',133 (b'\0\1' + fcs(b'\0\1'), []),134 (b'\0\1' + fcs(b'\0\1') + b'\x7e',135 [Expected.error(FrameStatus.FRAMING_ERROR)]),136 'No frames emitted until flag',137 (_encode(1, 2, b'3')[:-1], []),138 (b'\x7e' + _encode(1, 2, b'3')[1:-1] * 2, []),139 'Only flag and escape characters can be escaped',140 (b'\x7e\x7d\0' + _encode(1, 2, b'3'),141 [Expected.error(FrameStatus.FRAMING_ERROR),142 Expected(1, b'\2', b'3')]),143 (b'\x7e1234\x7da' + _encode(1, 2, b'3'),144 [Expected.error(FrameStatus.FRAMING_ERROR),145 Expected(1, b'\2', b'3')]),146) # yapf: disable147# Formatting for the above tuple is very slow, so disable yapf.148_TESTS = TestGenerator(TEST_CASES)149def _expected(frames: List[Frame]) -> Iterator[str]:150 for i, frame in enumerate(frames, 1):151 if frame.ok():152 yield f' Frame(kDecodedFrame{i:02}),'153 else:154 yield f' Status::DataLoss(), // Frame {i}'155_CPP_HEADER = """\156#include "pw_hdlc/decoder.h"157#include <array>...
test_image_encoder.py
Source:test_image_encoder.py
...3from pycozmo.util import hex_dump, hex_load4from pycozmo.tests.image_encoder_fixtures import FIXTURES5class TestImageEncoder(unittest.TestCase):6 @staticmethod7 def _encode(sim: str) -> str:8 im = str_to_image(sim)9 encoder = ImageEncoder(im)10 buf = encoder.encode()11 res = hex_dump(buf)12 return res13 def assertSameImage(self, sim: str, seq: str) -> None:14 buffer = hex_load(seq)15 decoder = ImageDecoder(buffer)16 decoder.decode()17 actual = image_to_str(decoder.image)18 self.assertEqual(sim.strip(), actual.strip())19 def test_blank(self):20 fixture = FIXTURES["blank"]21 sim = fixture["image"]22 expected = fixture["seq"]23 actual = self._encode(sim)24 self.assertEqual(expected, actual)25 self.assertSameImage(sim, actual)26 def test_fill_screen(self):27 fixture = FIXTURES["fill_screen"]28 sim = fixture["image"]29 expected = fixture["seq"]30 actual = self._encode(sim)31 self.assertEqual(expected, actual)32 self.assertSameImage(sim, actual)33 def test_fill_screen2(self):34 fixture = FIXTURES["fill_screen2"]35 sim = fixture["image"]36 expected = fixture["alt_seq"]37 actual = self._encode(sim)38 self.assertEqual(expected, actual)39 self.assertSameImage(sim, actual)40 def test_top_left(self):41 fixture = FIXTURES["top_left"]42 sim = fixture["image"]43 expected = fixture["alt_seq"]44 actual = self._encode(sim)45 self.assertEqual(expected, actual)46 self.assertSameImage(sim, actual)47 def test_top_left_5(self):48 fixture = FIXTURES["top_left_5"]49 sim = fixture["image"]50 expected = fixture["alt_seq"]51 actual = self._encode(sim)52 self.assertEqual(expected, actual)53 self.assertSameImage(sim, actual)54 def test_top_left_1_8(self):55 fixture = FIXTURES["top_left_1_8"]56 sim = fixture["image"]57 expected = fixture["alt_seq"]58 actual = self._encode(sim)59 self.assertEqual(expected, actual)60 self.assertSameImage(sim, actual)61 def test_top_left_line(self):62 fixture = FIXTURES["top_left_line"]63 sim = fixture["image"]64 expected = fixture["alt_seq"]65 actual = self._encode(sim)66 self.assertEqual(expected, actual)67 self.assertSameImage(sim, actual)68 def test_top_line(self):69 fixture = FIXTURES["top_line"]70 sim = fixture["image"]71 expected = fixture["alt_seq"]72 actual = self._encode(sim)73 self.assertEqual(expected, actual)74 self.assertSameImage(sim, actual)75 def test_bottom_line(self):76 fixture = FIXTURES["bottom_line"]77 sim = fixture["image"]78 expected = fixture["seq"]79 actual = self._encode(sim)80 self.assertEqual(expected, actual)81 self.assertSameImage(sim, actual)82 def test_left_line(self):83 fixture = FIXTURES["left_line"]84 sim = fixture["image"]85 expected = fixture["seq"]86 actual = self._encode(sim)87 self.assertEqual(expected, actual)88 self.assertSameImage(sim, actual)89 def test_right_line(self):90 fixture = FIXTURES["right_line"]91 sim = fixture["image"]92 expected = fixture["seq"]93 actual = self._encode(sim)94 self.assertEqual(expected, actual)95 self.assertSameImage(sim, actual)96 def test_columns(self):97 fixture = FIXTURES["columns"]98 sim = fixture["image"]99 expected = fixture["seq"]100 actual = self._encode(sim)101 self.assertEqual(expected, actual)102 self.assertSameImage(sim, actual)103 def test_rect(self):104 fixture = FIXTURES["rect"]105 sim = fixture["image"]106 expected = fixture["alt_seq"]107 actual = self._encode(sim)108 self.assertEqual(expected, actual)109 self.assertSameImage(sim, actual)110 def test_rect2(self):111 fixture = FIXTURES["rect2"]112 sim = fixture["image"]113 expected = fixture["alt_seq"]114 actual = self._encode(sim)115 self.assertEqual(expected, actual)116 self.assertSameImage(sim, actual)117 def test_rect3(self):118 fixture = FIXTURES["rect3"]119 sim = fixture["image"]120 expected = fixture["alt_seq"]121 actual = self._encode(sim)122 self.assertEqual(expected, actual)123 self.assertSameImage(sim, actual)124 def test_rect4(self):125 fixture = FIXTURES["rect4"]126 sim = fixture["image"]127 expected = fixture["alt_seq"]128 actual = self._encode(sim)129 self.assertEqual(expected, actual)130 self.assertSameImage(sim, actual)131 def test_diagonal(self):132 fixture = FIXTURES["diagonal"]133 sim = fixture["image"]134 expected = fixture["alt_seq"]135 actual = self._encode(sim)136 self.assertEqual(expected, actual)137 self.assertSameImage(sim, actual)138 def test_diagonal2(self):139 fixture = FIXTURES["diagonal2"]140 sim = fixture["image"]141 expected = fixture["alt_seq"]142 actual = self._encode(sim)143 self.assertEqual(expected, actual)144 self.assertSameImage(sim, actual)145 def test_blocks(self):146 fixture = FIXTURES["blocks"]147 sim = fixture["image"]148 expected = fixture["seq"]149 actual = self._encode(sim)150 self.assertEqual(expected, actual)151 self.assertSameImage(sim, actual)152 def test_pycozmo(self):153 fixture = FIXTURES["pycozmo"]154 sim = fixture["image"]155 expected = fixture["seq"]156 actual = self._encode(sim)157 self.assertEqual(expected, actual)158 self.assertSameImage(sim, actual)159 def test_chessboard_tl(self):160 fixture = FIXTURES["chessboard_tl"]161 sim = fixture["image"]162 expected = fixture["seq"]163 actual = self._encode(sim)164 self.assertEqual(expected, actual)165 self.assertSameImage(sim, actual)166 def test_chessboard_bl(self):167 fixture = FIXTURES["chessboard_bl"]168 sim = fixture["image"]169 expected = fixture["alt_seq"]170 actual = self._encode(sim)171 self.assertEqual(expected, actual)172 self.assertSameImage(sim, actual)173 def test_chessboard_tr(self):174 fixture = FIXTURES["chessboard_tr"]175 sim = fixture["image"]176 expected = fixture["seq"]177 actual = self._encode(sim)178 self.assertEqual(expected, actual)179 self.assertSameImage(sim, actual)180 def test_chessboard_br(self):181 fixture = FIXTURES["chessboard_br"]182 sim = fixture["image"]183 expected = fixture["alt_seq"]184 actual = self._encode(sim)185 self.assertEqual(expected, actual)186 self.assertSameImage(sim, actual)187 def test_chessboard2_tl(self):188 fixture = FIXTURES["chessboard2_tl"]189 sim = fixture["image"]190 expected = fixture["seq"]191 actual = self._encode(sim)192 self.assertEqual(expected, actual)193 self.assertSameImage(sim, actual)194 def test_chessboard2_bl(self):195 fixture = FIXTURES["chessboard2_bl"]196 sim = fixture["image"]197 expected = fixture["alt_seq"]198 actual = self._encode(sim)199 self.assertEqual(expected, actual)200 self.assertSameImage(sim, actual)201 def test_chessboard2_tr(self):202 fixture = FIXTURES["chessboard2_tr"]203 sim = fixture["image"]204 expected = fixture["seq"]205 actual = self._encode(sim)206 self.assertEqual(expected, actual)207 self.assertSameImage(sim, actual)208 def test_chessboard2_br(self):209 fixture = FIXTURES["chessboard2_br"]210 sim = fixture["image"]211 expected = fixture["alt_seq"]212 actual = self._encode(sim)213 self.assertEqual(expected, actual)...
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