mirror of
https://github.com/mofeng-git/One-KVM.git
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70 lines
3.2 KiB
Python
70 lines
3.2 KiB
Python
# ========================================================================== #
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# #
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# KVMD - The main Pi-KVM daemon. #
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# #
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# Copyright (C) 2020 Maxim Devaev <mdevaev@gmail.com> #
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# #
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# This program is free software: you can redistribute it and/or modify #
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# it under the terms of the GNU General Public License as published by #
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# the Free Software Foundation, either version 3 of the License, or #
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# (at your option) any later version. #
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# #
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# This program is distributed in the hope that it will be useful, #
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# but WITHOUT ANY WARRANTY; without even the implied warranty of #
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the #
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# GNU General Public License for more details. #
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# #
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# You should have received a copy of the GNU General Public License #
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# along with this program. If not, see <https://www.gnu.org/licenses/>. #
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# #
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# ========================================================================== #
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import dataclasses
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from typing import FrozenSet
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from typing import Any
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# =====
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class RfbEncodings:
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RESIZE = -223 # DesktopSize Pseudo-encoding
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RENAME = -307 # DesktopName Pseudo-encoding
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LEDS_STATE = -261 # LED State Pseudo-encoding
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TIGHT = 7
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TIGHT_JPEG_QUALITIES = dict(zip( # JPEG Quality Level Pseudo-encoding
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[-32, -31, -30, -29, -28, -27, -26, -25, -24, -23],
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[10, 20, 30, 40, 50, 60, 70, 80, 90, 100],
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))
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@dataclasses.dataclass(frozen=True)
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class RfbClientEncodings:
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encodings: FrozenSet[int]
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has_resize: bool = dataclasses.field(default=False)
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has_rename: bool = dataclasses.field(default=False)
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has_leds_state: bool = dataclasses.field(default=False)
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has_tight: bool = dataclasses.field(default=False)
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tight_jpeg_quality: int = dataclasses.field(default=0)
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def __post_init__(self) -> None:
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self.__set("has_resize", (RfbEncodings.RESIZE in self.encodings))
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self.__set("has_rename", (RfbEncodings.RENAME in self.encodings))
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self.__set("has_leds_state", (RfbEncodings.LEDS_STATE in self.encodings))
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self.__set("has_tight", (RfbEncodings.TIGHT in self.encodings))
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self.__set("tight_jpeg_quality", self.__get_tight_jpeg_quality())
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def __set(self, key: str, value: Any) -> None:
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object.__setattr__(self, key, value)
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def __get_tight_jpeg_quality(self) -> int:
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if RfbEncodings.TIGHT in self.encodings:
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qualities = self.encodings.intersection(RfbEncodings.TIGHT_JPEG_QUALITIES)
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if qualities:
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return RfbEncodings.TIGHT_JPEG_QUALITIES[max(qualities)]
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return 0
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