jacy
cdc4b82931
HQ 指定一张活动图为勾选主合伙人合成 PNG/zip；城市合伙人页增加快链与单下/导出。 Co-authored-by: Cursor <cursoragent@cursor.com>
65 lines
2.2 KiB
TypeScript
65 lines
2.2 KiB
TypeScript
/**
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* Sequential Sharp compose bench (1 / 10 / 50) on a 1080×1920 template.
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* Usage: node scripts/with-api-env.cjs npx ts-node --transpile-only scripts/bench-activity-poster-pack.ts
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* or from dukang-api: npx ts-node --transpile-only scripts/bench-activity-poster-pack.ts
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*/
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import sharp from 'sharp';
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import {
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DEFAULT_ACTIVITY_POSTER_QR_SLOT,
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activityPosterQrSlotPx,
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activityPosterTemplateTooLarge,
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} from '@dukang/shared-types';
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async function png(width: number, height: number, r: number, g: number, b: number) {
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return sharp({
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create: { width, height, channels: 3, background: { r, g, b } },
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})
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.png()
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.toBuffer();
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}
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async function compose(template: Buffer, qrPng: Buffer) {
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const meta = await sharp(template).metadata();
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if (!meta.width || !meta.height) throw new Error('no size');
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if (activityPosterTemplateTooLarge(meta.width, meta.height)) throw new Error('too large');
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const { left, top, size } = activityPosterQrSlotPx(
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meta.width,
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meta.height,
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DEFAULT_ACTIVITY_POSTER_QR_SLOT.qrXPct,
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DEFAULT_ACTIVITY_POSTER_QR_SLOT.qrYPct,
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DEFAULT_ACTIVITY_POSTER_QR_SLOT.qrSizePct,
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);
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const qr = await sharp(qrPng).resize(size, size, { fit: 'fill' }).png().toBuffer();
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return sharp(template).composite([{ input: qr, left, top }]).png().toBuffer();
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}
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function rssMb() {
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return Math.round(process.memoryUsage().rss / 1024 / 1024);
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}
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async function bench(n: number, template: Buffer, qr: Buffer) {
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const t0 = Date.now();
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const rss0 = rssMb();
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let last = 0;
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for (let i = 0; i < n; i += 1) {
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const out = await compose(template, qr);
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last = out.length;
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}
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const ms = Date.now() - t0;
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return { n, ms, avgMs: Math.round(ms / n), rss0, rss1: rssMb(), lastKb: Math.round(last / 1024) };
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}
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async function main() {
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const template = await png(1080, 1920, 160, 32, 32);
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const qr = await png(430, 430, 255, 255, 255);
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console.log(`template=${Math.round(template.length / 1024)}KB qr=${Math.round(qr.length / 1024)}KB rss=${rssMb()}MB`);
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for (const n of [1, 10, 50]) {
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const row = await bench(n, template, qr);
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console.log(
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`n=${row.n} total=${row.ms}ms avg=${row.avgMs}ms rss ${row.rss0}->${row.rss1}MB out≈${row.lastKb}KB`,
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);
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}
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}
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void main();
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