437 lines
16 KiB
Python
437 lines
16 KiB
Python
"""UCD 驱动层。
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唯一暴露给上层的入口为 :class:`IUcdDevice` 抽象接口，以及实现：
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:class:`UCD323Device`（生产）和 :class:`FakeUcdDevice`（单测）。
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Phase 1 实现策略
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-----------------
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为保证零行为变更，:class:`UCD323Device` 当前**内部委托**给已有的
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:class:`drivers.UCD323_Function.UCDController`。后续 Phase 2 会将
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SDK 调用直接搬入本模块，届时可删除旧 ``UCDController`` 文件。
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文件分区：
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§1 DeviceInfo / list_devices
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§2 IUcdDevice 抽象接口
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§3 UCD323Device 真实实现
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§4 FakeUcdDevice 单测实现
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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 abc import ABC, abstractmethod
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from dataclasses import dataclass
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from typing import TYPE_CHECKING
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from app.ucd_domain import (
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ConnectionChanged,
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EventBus,
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Interface,
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PatternApplied,
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PatternKind,
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PatternSpec,
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SignalApplied,
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SignalFormat,
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TimingSpec,
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UcdApplyFailed,
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UcdConfigError,
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UcdNotConnected,
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UcdSdkError,
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UcdState,
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UcdStateError,
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assert_transition,
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)
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if TYPE_CHECKING:
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from drivers.UCD323_Function import UCDController
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log = logging.getLogger(__name__)
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# ─── §1 DeviceInfo / list_devices ────────────────────────────────
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@dataclass(frozen=True)
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class DeviceInfo:
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"""UCD 设备发现条目。
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``display`` 是 SDK 给出的完整字符串（``"0: UCD-323 #12345678"``）；
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``index`` / ``serial`` / ``model`` 通过解析得到，解析失败时为 None。
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"""
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display: str
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index: int | None = None
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serial: str | None = None
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model: str | None = None
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@classmethod
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def parse(cls, display: str) -> "DeviceInfo":
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idx: int | None = None
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model: str | None = None
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serial: str | None = None
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try:
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head, rest = display.split(":", 1)
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idx = int(head.strip())
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rest = rest.strip()
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# 形如 "UCD-323 #12345678" 或 "UCD-323 #12345678 (in use)"
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tokens = rest.split()
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if tokens:
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model = tokens[0]
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for tok in tokens[1:]:
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if tok.startswith("#") and len(tok) >= 2:
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serial = tok.lstrip("#")
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break
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except Exception: # noqa: BLE001 - 解析失败保留原 display 即可
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pass
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return cls(display=display, index=idx, serial=serial, model=model)
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def list_devices(controller: "UCDController") -> list[DeviceInfo]:
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"""通过给定的底层 controller 枚举可用 UCD 设备。"""
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try:
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raw_list = controller.search_device()
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except Exception as exc: # noqa: BLE001
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raise UcdSdkError("枚举 UCD 设备失败") from exc
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return [DeviceInfo.parse(s) for s in (raw_list or [])]
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# ─── §2 IUcdDevice 抽象接口 ──────────────────────────────────────
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class IUcdDevice(ABC):
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"""UCD 信号发生器抽象设备。
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上层（Service / GUI）**只**通过本接口操作硬件，不得穿透到
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UniTAP SDK 或具体实现细节。
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"""
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@property
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@abstractmethod
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def state(self) -> UcdState: ...
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@property
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@abstractmethod
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def info(self) -> DeviceInfo | None: ...
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@abstractmethod
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def open(self, info: DeviceInfo, *, interface: Interface = Interface.HDMI) -> None:
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"""打开设备并选择接口角色。失败抛 :class:`UcdSdkError` 等。"""
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@abstractmethod
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def close(self) -> None:
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"""关闭设备（幂等）。"""
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@abstractmethod
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def configure(self, signal: SignalFormat, timing: TimingSpec) -> bool:
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"""写入信号格式与 timing（未 apply）。返回 ``format_changed``。"""
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@abstractmethod
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def set_pattern(self, pattern: PatternSpec) -> None:
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"""设置当前图案（未 apply）。"""
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@abstractmethod
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def apply(self) -> None:
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"""将已配置的信号格式 + 图案一次性提交给硬件。"""
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@abstractmethod
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def current_resolution(self) -> tuple[int, int]:
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"""读取当前 timing 的 (width, height)；未连接时返回默认 (3840, 2160)。"""
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# ─── §3 UCD323Device 真实实现 ────────────────────────────────────
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class UCD323Device(IUcdDevice):
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"""生产环境实现。内部委托给传统 :class:`UCDController`（Phase 1）。"""
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def __init__(self, bus: EventBus, controller: "UCDController | None" = None):
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from drivers.UCD323_Function import UCDController as _UCDController
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self._bus = bus
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self._controller: "UCDController" = controller or _UCDController()
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self._state: UcdState = UcdState.CLOSED
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self._info: DeviceInfo | None = None
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self._interface: Interface = Interface.HDMI
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self._lock = threading.RLock()
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self._curr_signal: SignalFormat | None = None
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self._curr_timing: TimingSpec | None = None
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self._curr_pattern: PatternSpec | None = None
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self._last_applied: tuple[SignalFormat, TimingSpec] | None = None
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# -- 读访问 --------------------------------------------------
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@property
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def state(self) -> UcdState:
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return self._state
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@property
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def info(self) -> DeviceInfo | None:
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return self._info
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@property
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def raw_controller(self) -> "UCDController":
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"""Phase 1 过渡期：给暂未迁移的旧调用点的逃生通道。
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新代码**不**应使用本属性，迁移完成后即可删除。
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"""
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return self._controller
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# -- 生命周期 ------------------------------------------------
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def open(self, info: DeviceInfo, *, interface: Interface = Interface.HDMI) -> None:
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with self._lock:
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assert_transition(self._state, UcdState.OPENED)
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if interface is not Interface.HDMI:
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# Phase 1：底层 UCDController.open() 写死了 HDMISource。
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raise UcdConfigError(
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f"暂不支持接口 {interface.value}；当前仅实现 HDMI"
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)
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try:
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ok = self._controller.open(info.display)
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except Exception as exc: # noqa: BLE001
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raise UcdSdkError(f"打开设备失败: {info.display}") from exc
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if not ok:
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raise UcdSdkError(f"打开设备失败: {info.display}")
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self._info = info
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self._interface = interface
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self._state = UcdState.OPENED
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self._bus.publish(ConnectionChanged(True, info.serial))
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def close(self) -> None:
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with self._lock:
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if self._state == UcdState.CLOSED:
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return
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try:
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self._controller.close()
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except Exception: # noqa: BLE001
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log.exception("关闭 UCD 时发生异常")
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self._state = UcdState.CLOSED
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self._curr_signal = None
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self._curr_timing = None
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self._curr_pattern = None
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self._last_applied = None
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prev_serial = self._info.serial if self._info else None
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self._info = None
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self._bus.publish(ConnectionChanged(False, prev_serial))
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# -- 配置 ----------------------------------------------------
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def configure(self, signal: SignalFormat, timing: TimingSpec) -> bool:
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with self._lock:
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if self._state == UcdState.CLOSED:
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raise UcdNotConnected("UCD 未连接，无法 configure")
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try:
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# 颜色模式（color_format / bpc / colorimetry）
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if not self._controller.set_color_mode(
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signal.color_format.value,
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int(signal.bpc),
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_colorimetry_to_legacy_key(signal),
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):
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raise UcdConfigError(
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f"set_color_mode 失败: {signal!r}"
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)
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# dynamic_range 在新接口中是一等公民
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self._apply_dynamic_range(signal)
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# Timing
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if not self._controller.set_timing_from_string(str(timing)):
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raise UcdConfigError(f"set_timing_from_string 失败: {timing}")
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except UcdConfigError:
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raise
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except Exception as exc: # noqa: BLE001
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raise UcdSdkError("configure 异常") from exc
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self._curr_signal = signal
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self._curr_timing = timing
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self._state = UcdState.CONFIGURED
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return (signal, timing) != self._last_applied
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def set_pattern(self, pattern: PatternSpec) -> None:
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with self._lock:
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if self._state not in (UcdState.CONFIGURED, UcdState.APPLIED):
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raise UcdStateError(
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f"set_pattern 需要 CONFIGURED/APPLIED 状态，当前 {self._state.name}"
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)
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self._curr_pattern = pattern
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# 仅本地暂存，真正写硬件在 apply()
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def apply(self) -> None:
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with self._lock:
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if self._curr_signal is None or self._curr_timing is None:
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raise UcdStateError("apply 前必须先 configure")
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if self._curr_pattern is None:
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raise UcdStateError("apply 前必须先 set_pattern")
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try:
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ok = self._apply_pattern_via_controller(self._curr_pattern)
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except Exception as exc: # noqa: BLE001
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raise UcdSdkError("apply 异常") from exc
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if not ok:
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raise UcdApplyFailed(
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f"apply 失败: pattern={self._curr_pattern.kind.value}"
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)
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changed = (self._curr_signal, self._curr_timing) != self._last_applied
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self._last_applied = (self._curr_signal, self._curr_timing)
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self._state = UcdState.APPLIED
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self._bus.publish(
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SignalApplied(self._curr_signal, self._curr_timing, changed)
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)
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self._bus.publish(PatternApplied(self._curr_pattern))
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# -- 查询 ----------------------------------------------------
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def current_resolution(self) -> tuple[int, int]:
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try:
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return self._controller.get_current_resolution((3840, 2160))
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except Exception: # noqa: BLE001
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return (3840, 2160)
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# -- 内部辅助 ------------------------------------------------
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def _apply_dynamic_range(self, signal: SignalFormat) -> None:
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import UniTAP # 局部导入，避免本模块在无 SDK 环境下导入即失败
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from app.ucd_domain import DynamicRange
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ci = self._controller.color_info
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if ci is None:
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return
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if signal.dynamic_range is DynamicRange.FULL:
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ci.dynamic_range = UniTAP.ColorInfo.DynamicRange.DR_VESA
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else:
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ci.dynamic_range = UniTAP.ColorInfo.DynamicRange.DR_CTA
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def _apply_pattern_via_controller(self, pattern: PatternSpec) -> bool:
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"""根据 PatternKind 走最合适的旧 controller 路径。"""
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if pattern.kind is PatternKind.IMAGE:
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if not pattern.image_path:
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raise UcdConfigError("IMAGE pattern 必须提供 image_path")
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return bool(self._controller.send_image_pattern(pattern.image_path))
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# 预定义图案路径：复用 controller.set_pattern + run()
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from drivers.UCD323_Enum import UCDEnum # 局部导入避免循环
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video_pattern = UCDEnum.VideoPatternInfo.get_video_pattern(pattern.kind.value)
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if video_pattern is None:
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raise UcdConfigError(f"不支持的 PatternKind: {pattern.kind!r}")
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self._controller.current_pattern = video_pattern
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params: list[int] | None = None
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if pattern.kind is PatternKind.SOLID:
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if pattern.solid_rgb is None:
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raise UcdConfigError("SOLID pattern 必须提供 solid_rgb")
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params = list(pattern.solid_rgb)
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elif pattern.extras:
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params = list(pattern.extras)
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if not self._controller.set_pattern(video_pattern, params):
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raise UcdApplyFailed("controller.set_pattern 返回 False")
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return bool(self._controller.run())
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def _colorimetry_to_legacy_key(signal: SignalFormat) -> str:
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"""新 :class:`Colorimetry` → 旧 ``UCDEnum.ColorInfo.get_colorimetry`` 的 key。
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BT.2020 在 YCbCr / RGB 输出下走不同 SDK 枚举（参考旧
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``_get_colorimetry_from_color_space`` 的逻辑），这里也做同样的分支。
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"""
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from app.ucd_domain import Colorimetry, is_ycbcr
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cm = signal.colorimetry
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ycbcr = is_ycbcr(signal.color_format)
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if cm is Colorimetry.BT2020:
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return "bt2020ycbcr" if ycbcr else "bt2020rgb"
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return {
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Colorimetry.SRGB: "srgb",
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Colorimetry.BT709: "bt709",
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Colorimetry.BT601: "bt601",
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Colorimetry.DCI_P3: "dcip3",
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Colorimetry.ADOBE_RGB: "adobergb",
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}.get(cm, "srgb")
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# ─── §4 FakeUcdDevice 单测实现 ───────────────────────────────────
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class FakeUcdDevice(IUcdDevice):
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"""无硬件依赖的 Fake 实现；记录调用序列供单测断言。"""
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def __init__(self, bus: EventBus | None = None) -> None:
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self._bus = bus or EventBus()
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self._state = UcdState.CLOSED
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self._info: DeviceInfo | None = None
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self._signal: SignalFormat | None = None
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self._timing: TimingSpec | None = None
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self._pattern: PatternSpec | None = None
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self._last_applied: tuple[SignalFormat, TimingSpec] | None = None
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self.calls: list[tuple] = [] # ("open", info) / ("configure", ...) ...
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@property
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def state(self) -> UcdState:
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return self._state
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@property
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def info(self) -> DeviceInfo | None:
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return self._info
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def open(self, info: DeviceInfo, *, interface: Interface = Interface.HDMI) -> None:
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assert_transition(self._state, UcdState.OPENED)
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self.calls.append(("open", info, interface))
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self._info = info
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self._state = UcdState.OPENED
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self._bus.publish(ConnectionChanged(True, info.serial))
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def close(self) -> None:
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if self._state == UcdState.CLOSED:
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return
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self.calls.append(("close",))
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self._state = UcdState.CLOSED
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prev = self._info.serial if self._info else None
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self._info = None
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self._signal = self._timing = self._pattern = None
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self._last_applied = None
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self._bus.publish(ConnectionChanged(False, prev))
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def configure(self, signal: SignalFormat, timing: TimingSpec) -> bool:
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if self._state == UcdState.CLOSED:
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raise UcdNotConnected()
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self.calls.append(("configure", signal, timing))
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self._signal, self._timing = signal, timing
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self._state = UcdState.CONFIGURED
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return (signal, timing) != self._last_applied
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def set_pattern(self, pattern: PatternSpec) -> None:
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if self._state not in (UcdState.CONFIGURED, UcdState.APPLIED):
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raise UcdStateError(f"非法状态 {self._state.name}")
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self.calls.append(("set_pattern", pattern))
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self._pattern = pattern
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def apply(self) -> None:
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if self._signal is None or self._timing is None:
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raise UcdStateError("apply 前必须 configure")
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if self._pattern is None:
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raise UcdStateError("apply 前必须 set_pattern")
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self.calls.append(("apply",))
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changed = (self._signal, self._timing) != self._last_applied
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self._last_applied = (self._signal, self._timing)
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self._state = UcdState.APPLIED
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self._bus.publish(SignalApplied(self._signal, self._timing, changed))
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self._bus.publish(PatternApplied(self._pattern))
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def current_resolution(self) -> tuple[int, int]:
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if self._timing is None:
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return (3840, 2160)
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return (self._timing.width, self._timing.height)
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__all__ = [
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"DeviceInfo",
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"list_devices",
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"IUcdDevice",
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"UCD323Device",
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"FakeUcdDevice",
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]
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