57 lines
1.7 KiB
TypeScript
57 lines
1.7 KiB
TypeScript
const parseEnvInt = (
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value: string | undefined,
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fallback: number,
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min: number,
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max: number
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) => {
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if (!value) return fallback
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const parsed = Number.parseInt(value, 10)
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if (!Number.isFinite(parsed)) return fallback
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return Math.min(max, Math.max(min, parsed))
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}
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export const labelimagePerformanceConfig = {
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// 单次渲染的路径切片大小。越小越丝滑，越大越快完成。
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polygonRenderBatchSize: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_POLYGON_BATCH_SIZE,
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12,
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1,
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200
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),
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// 每帧渲染预算（毫秒）。越小越不卡操作，越大越快完成绘制。
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polygonRenderBatchBudgetMs: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_POLYGON_BATCH_BUDGET_MS,
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6,
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1,
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33
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),
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// 切帧准备超过该阈值后才显示轻量提示，避免短切换频繁闪动提示。
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frameSwitchLoadingDelayMs: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_FRAME_SWITCH_LOADING_DELAY_MS,
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120,
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0,
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1000
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),
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// 切帧时新旧图层的交叉淡入时长（毫秒）。设为 0 可关闭淡入。
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rasterCrossfadeDurationMs: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_RASTER_CROSSFADE_MS,
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90,
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0,
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400
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),
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// 容器尺寸连续变化时，延迟提交 canvas 实际宽高，减少频繁重置导致的白闪。
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resizeCommitDebounceMs: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_RESIZE_COMMIT_DEBOUNCE_MS,
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90,
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0,
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500
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),
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// 容器尺寸变更后的视觉缓动时长（毫秒），用于降低“跳变感”。
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resizeInterpolationDurationMs: parseEnvInt(
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process.env.NEXT_PUBLIC_LABELIMAGE_RESIZE_INTERPOLATION_MS,
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100,
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0,
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400
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),
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} as const
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