gx
d807cd2c23
5b — audio source switching:
AudioSourceCfg list + audio_filter_target в InstanceCfg
CommandDispatcher._audio_set → ZMQ astreamselect@as map <index>
REST: GET /audio/{inst}, POST /audio/{inst}/set
MQTT: cuda_grid/cmd/<inst>/audio/set <source_name>
5c — intercom ducking:
music_volume_target / intercom_volume_target / music_ducked_volume в InstanceCfg
CommandDispatcher._intercom_set → 2× ZMQ volume@music/@intercom commands
REST: POST /intercom/{inst}/start (music↓ + intercom↑) + /end (restore)
MQTT: cuda_grid/cmd/<inst>/intercom/start|end
6 — dynamic overlays (charts/chats):
dynamic_overlays.py: ChartCfg/ChatCfg + DynamicRenderer
PIL rendering: line chart + scrolling text list
Async loops пишут PNG в icon_dir + invalidate filter cache via reload_icon ZMQ
MQTT subscriptions для real data (charts: numeric topic, chats: text topic)
Demo: chart sine wave если data_topic=null
Wired в __main__.py + mqtt_loop dispatch
+ ZMQ client asyncio.Lock — REQ socket strict send/recv pattern требует
serialize requests (overlay/audio/intercom concurrent ломали "Operation
cannot be accomplished in current state")
+ Pillow в Dockerfile (для PIL render)
Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
275 lines
10 KiB
Python
275 lines
10 KiB
Python
"""Dynamic overlay renderer (Phase 6).
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Controller рендерит chart/chat overlays через PIL → PNG в shared volume,
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затем посылает filter команду `reload_icon` чтобы invalidate cache. Filter
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re-reads PNG file при следующем render.
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Файлы кладутся в `${icon_dir}/${overlay_id}.png` где icon_dir = mount к
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volume общий с pipeline (filter ищет тут).
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"""
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from __future__ import annotations
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import asyncio
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import math
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import time
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from collections import deque
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from pathlib import Path
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from typing import TYPE_CHECKING
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import structlog
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from PIL import Image, ImageDraw, ImageFont
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from pydantic import BaseModel, Field
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from .overlays import IconOverlay
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if TYPE_CHECKING:
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from .dispatch import CommandDispatcher
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log = structlog.get_logger()
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# ─── Config ───────────────────────────────────────────────────────────
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class ChartCfg(BaseModel):
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"""Live chart overlay."""
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id: str = Field(description="Уникальное имя — становится PNG file name + overlay_id")
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target_instance: str
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cell: int | None = None # None = absolute
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x: float = Field(ge=0.0, le=1.0)
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y: float = Field(ge=0.0, le=1.0)
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w_px: int = Field(default=320, ge=64, le=1920)
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h_px: int = Field(default=120, ge=32, le=1080)
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title: str = ""
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data_topic: str | None = Field(
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default=None,
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description="MQTT topic с numeric payload. Если None — fake sine wave для demo.",
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)
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refresh_sec: float = Field(default=2.0, ge=0.5, le=60.0)
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max_points: int = Field(default=60, ge=10, le=600)
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line_color: tuple[int, int, int] = (0, 255, 128)
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bg_color: tuple[int, int, int, int] = (0, 0, 0, 180)
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opacity: float = 1.0
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z_order: int = 25
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class ChatCfg(BaseModel):
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"""Scrolling text notifications."""
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id: str
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target_instance: str
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cell: int | None = None
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x: float = Field(ge=0.0, le=1.0)
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y: float = Field(ge=0.0, le=1.0)
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w_px: int = Field(default=400, ge=64, le=1920)
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h_px: int = Field(default=200, ge=32, le=1080)
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source_topic: str | None = Field(default=None, description="MQTT topic — каждое сообщение = новая строка")
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max_messages: int = Field(default=10, ge=1, le=50)
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font_size: int = Field(default=18, ge=10, le=64)
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text_color: tuple[int, int, int] = (255, 255, 255)
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bg_color: tuple[int, int, int, int] = (0, 0, 0, 150)
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opacity: float = 1.0
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z_order: int = 26
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# ─── Renderers ────────────────────────────────────────────────────────
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class _FontCache:
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_font: ImageFont.FreeTypeFont | None = None
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@classmethod
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def get(cls, size: int) -> ImageFont.FreeTypeFont | ImageFont.ImageFont:
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try:
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return ImageFont.truetype("/usr/share/fonts/truetype/dejavu/DejaVuSans-Bold.ttf", size=size)
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except OSError:
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return ImageFont.load_default()
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def render_chart(cfg: ChartCfg, data: list[float]) -> Image.Image:
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"""Line chart с title. Returns RGBA Image."""
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img = Image.new("RGBA", (cfg.w_px, cfg.h_px), cfg.bg_color)
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draw = ImageDraw.Draw(img)
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pad = 8
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# Title
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if cfg.title:
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font = _FontCache.get(14)
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draw.text((pad, 2), cfg.title, fill=(255, 255, 255), font=font)
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chart_top = 20
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else:
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chart_top = pad
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chart_bottom = cfg.h_px - pad
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chart_left = pad
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chart_right = cfg.w_px - pad
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chart_h = chart_bottom - chart_top
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chart_w = chart_right - chart_left
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# Border
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draw.rectangle([chart_left, chart_top, chart_right, chart_bottom],
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outline=(128, 128, 128, 200), width=1)
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if len(data) >= 2:
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lo, hi = min(data), max(data)
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span = (hi - lo) or 1.0
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points: list[tuple[float, float]] = []
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for i, v in enumerate(data):
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px = chart_left + (i / (len(data) - 1)) * chart_w
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py = chart_bottom - ((v - lo) / span) * chart_h
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points.append((px, py))
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draw.line(points, fill=cfg.line_color, width=2)
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# Last value label
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font = _FontCache.get(12)
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last = data[-1]
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draw.text((chart_right - 50, chart_top + 2), f"{last:.1f}",
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fill=cfg.line_color, font=font)
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return img
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def render_chat(cfg: ChatCfg, messages: list[str]) -> Image.Image:
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"""Vertical list — last N messages at bottom."""
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img = Image.new("RGBA", (cfg.w_px, cfg.h_px), cfg.bg_color)
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draw = ImageDraw.Draw(img)
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font = _FontCache.get(cfg.font_size)
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pad = 6
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line_h = cfg.font_size + 4
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visible = messages[-cfg.max_messages:]
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y = cfg.h_px - pad - line_h
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for msg in reversed(visible):
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if y < pad:
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break
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draw.text((pad, y), msg[:80], fill=cfg.text_color, font=font)
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y -= line_h
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return img
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# ─── Runner ──────────────────────────────────────────────────────────
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class DynamicRenderer:
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"""Управляет рендерингом charts/chats — пишет PNG + посылает reload_icon."""
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def __init__(
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self,
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icon_dir: Path,
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dispatcher: "CommandDispatcher",
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charts: list[ChartCfg],
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chats: list[ChatCfg],
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) -> None:
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self.icon_dir = icon_dir
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self.dispatcher = dispatcher
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self.charts = charts
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self.chats = chats
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# State
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self._chart_data: dict[str, deque[float]] = {
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c.id: deque(maxlen=c.max_points) for c in charts
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}
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self._chat_messages: dict[str, deque[str]] = {
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c.id: deque(maxlen=c.max_messages) for c in chats
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}
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self._tasks: list[asyncio.Task] = []
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self._start_time = time.time()
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def topics_to_subscribe(self) -> list[str]:
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topics = []
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for c in self.charts:
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if c.data_topic:
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topics.append(c.data_topic)
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for c in self.chats:
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if c.source_topic:
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topics.append(c.source_topic)
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return topics
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def handle_message(self, topic: str, payload: str) -> None:
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"""Update buffer when MQTT data arrives. Caller — mqtt_loop."""
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for c in self.charts:
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if c.data_topic == topic:
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try:
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self._chart_data[c.id].append(float(payload.strip()))
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except ValueError:
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log.warning("dynamic.bad_chart_value", id=c.id, payload=payload[:50])
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return
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for c in self.chats:
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if c.source_topic == topic:
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self._chat_messages[c.id].append(payload.strip())
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return
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async def start(self) -> None:
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"""Spawn render tasks per overlay."""
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self.icon_dir.mkdir(parents=True, exist_ok=True)
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for cfg in self.charts:
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self._tasks.append(asyncio.create_task(self._chart_loop(cfg)))
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for cfg in self.chats:
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self._tasks.append(asyncio.create_task(self._chat_loop(cfg)))
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log.info("dynamic.started", charts=len(self.charts), chats=len(self.chats))
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async def stop(self) -> None:
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for t in self._tasks:
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t.cancel()
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for t in self._tasks:
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try:
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await t
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except asyncio.CancelledError:
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pass
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self._tasks.clear()
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async def _chart_loop(self, cfg: ChartCfg) -> None:
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registered = False
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while True:
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try:
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buf = self._chart_data[cfg.id]
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# Demo data если нет MQTT topic
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if cfg.data_topic is None:
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t = time.time() - self._start_time
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buf.append(20.0 + 10.0 * math.sin(t / 5))
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await self._render_and_publish(cfg, lambda: render_chart(cfg, list(buf)))
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if not registered:
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await self._register_overlay(cfg.id, cfg.target_instance, cfg.cell,
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cfg.x, cfg.y, cfg.opacity, cfg.z_order)
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registered = True
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await asyncio.sleep(cfg.refresh_sec)
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except asyncio.CancelledError:
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raise
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except Exception as e:
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log.error("dynamic.chart_loop_fail", id=cfg.id, error=str(e))
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await asyncio.sleep(5)
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async def _chat_loop(self, cfg: ChatCfg) -> None:
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registered = False
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last_signature: tuple[str, ...] = ()
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while True:
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try:
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msgs = list(self._chat_messages[cfg.id])
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sig = tuple(msgs)
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if sig != last_signature or not registered:
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await self._render_and_publish(cfg, lambda: render_chat(cfg, msgs))
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last_signature = sig
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if not registered:
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await self._register_overlay(cfg.id, cfg.target_instance, cfg.cell,
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cfg.x, cfg.y, cfg.opacity, cfg.z_order)
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registered = True
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await asyncio.sleep(0.5) # tight check для chat reactivity
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except asyncio.CancelledError:
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raise
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except Exception as e:
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log.error("dynamic.chat_loop_fail", id=cfg.id, error=str(e))
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await asyncio.sleep(5)
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async def _render_and_publish(self, cfg, render_fn) -> None:
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path = self.icon_dir / f"{cfg.id}.png"
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tmp = path.with_suffix(".png.tmp")
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img = render_fn()
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img.save(tmp, "PNG")
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tmp.replace(path)
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# Tell filter to invalidate cached atlas — next render re-reads file
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await self.dispatcher._reload_icon(cfg.target_instance, cfg.id)
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async def _register_overlay(self, ov_id, instance, cell, x, y, opacity, z_order) -> None:
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"""Initial register — add IconOverlay referencing icon_name=<id>."""
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ov = IconOverlay(
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id=ov_id, cell=cell, name=ov_id, # icon name = same as overlay id
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x=x, y=y, size=0.1, # size игнорируется filter'ом — use native PNG dims
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opacity=opacity, z_order=z_order,
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)
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await self.dispatcher.handle(instance, "overlay.add", ov.model_dump_json())
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