153 lines
4.5 KiB
Python
153 lines
4.5 KiB
Python
"""UCD 信号 / 图案应用服务层。
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服务层是 GUI ↔ Driver 的唯一通道，负责：
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- 将 UI 字符串（"BT.709"、"10bit"、"YCbCr 4:4:4" 等）翻译成 :class:`SignalFormat`；
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- 将各 panel 的 timing 字符串翻译成 :class:`TimingSpec`；
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- 协调 :meth:`IUcdDevice.configure` / ``set_pattern`` / ``apply`` 的调用顺序；
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- 通过 :class:`EventBus` 让 GUI 订阅状态变化，而非主动轮询。
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本层不直接 import UniTAP，也不读取 :mod:`tkinter` 变量；
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所有输入都是显式参数，便于单测。
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"""
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from __future__ import annotations
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import logging
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import threading
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from app.ucd_domain import (
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Colorimetry,
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DynamicRange,
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EventBus,
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PatternKind,
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PatternSpec,
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SignalFormat,
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TimingSpec,
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UcdError,
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bit_depth_str_to_bpc,
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color_space_to_colorimetry,
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data_range_to_dynamic_range,
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output_format_to_color_format,
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parse_timing_str,
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)
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from drivers.ucd_driver import IUcdDevice
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log = logging.getLogger(__name__)
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# ─── 视图字符串 → 值对象 转换工具 ────────────────────────────────
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def build_signal_format(
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*,
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color_space: str,
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output_format: str,
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bit_depth: str,
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data_range: str = "Full",
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) -> SignalFormat:
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"""根据下拉框字符串组装 :class:`SignalFormat`。
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各参数解析失败抛 :class:`UcdConfigError`。
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"""
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return SignalFormat(
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color_format=output_format_to_color_format(output_format),
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colorimetry=color_space_to_colorimetry(color_space),
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bpc=bit_depth_str_to_bpc(bit_depth),
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dynamic_range=data_range_to_dynamic_range(data_range),
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)
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def build_timing(timing_str: str) -> TimingSpec:
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"""``"DMT 3840x2160@60Hz"`` → :class:`TimingSpec`。"""
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return parse_timing_str(timing_str)
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def solid_rgb_pattern(rgb: tuple[int, int, int] | list[int]) -> PatternSpec:
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r, g, b = rgb[0], rgb[1], rgb[2]
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return PatternSpec(kind=PatternKind.SOLID, solid_rgb=(int(r), int(g), int(b)))
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def image_pattern(path: str) -> PatternSpec:
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return PatternSpec(kind=PatternKind.IMAGE, image_path=path)
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# ─── 服务 ────────────────────────────────────────────────────────
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class SignalService:
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"""协调 SignalFormat / Timing / Pattern 的写入与提交。
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使用线程锁串行化所有对外的 ``apply_*`` 调用，避免多个测试线程
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同时操作 UCD 造成 SDK 状态错乱。
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"""
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def __init__(self, device: IUcdDevice, bus: EventBus):
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self._dev = device
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self._bus = bus
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self._lock = threading.RLock()
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# -- 高层接口 ------------------------------------------------
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def apply(
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self,
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*,
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signal: SignalFormat,
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timing: TimingSpec,
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pattern: PatternSpec,
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) -> bool:
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"""一次性提交信号格式 + timing + 图案。
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Returns:
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``format_changed``——本次相对上一次 :meth:`apply` 是否变化。
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"""
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with self._lock:
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log.info(
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"SignalService.apply signal=%s timing=%s pattern=%s",
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signal,
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timing,
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pattern.kind.value,
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)
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changed = self._dev.configure(signal, timing)
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self._dev.set_pattern(pattern)
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self._dev.apply()
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return changed
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def send_pattern(self, pattern: PatternSpec) -> None:
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"""在已 configure 的信号上仅更新图案后 apply。"""
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with self._lock:
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log.info("SignalService.send_pattern pattern=%s", pattern.kind.value)
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self._dev.set_pattern(pattern)
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self._dev.apply()
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def send_solid_rgb(self, rgb: tuple[int, int, int] | list[int]) -> None:
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self.send_pattern(solid_rgb_pattern(rgb))
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def send_image(self, path: str) -> None:
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self.send_pattern(image_pattern(path))
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# -- 透传给上层的查询 ---------------------------------------
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@property
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def device(self) -> IUcdDevice:
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return self._dev
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def current_resolution(self) -> tuple[int, int]:
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return self._dev.current_resolution()
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__all__ = [
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"SignalService",
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"build_signal_format",
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"build_timing",
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"solid_rgb_pattern",
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"image_pattern",
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# 重导出常用域类型方便上层 import 一次到位
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"SignalFormat",
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"TimingSpec",
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"PatternSpec",
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"PatternKind",
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"Colorimetry",
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"DynamicRange",
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"UcdError",
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]
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