18 lines
1.0 KiB
JavaScript
18 lines
1.0 KiB
JavaScript
import puppeteer from 'puppeteer';
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import sharp from 'sharp';
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const b = await puppeteer.launch({ args:['--no-sandbox','--disable-setuid-sandbox','--use-gl=angle','--enable-unsafe-swiftshader','--ignore-gpu-blocklist'] });
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const p = await b.newPage();
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await p.setViewport({width:1280,height:1400,deviceScaleFactor:1});
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await p.goto('http://10.200.201.3:4175/_lab/neu-card.html',{waitUntil:'load',timeout:60000});
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await new Promise(r=>setTimeout(r,2000));
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const el = await p.$('#sec-shader');
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await el.screenshot({ path: '/tmp/shader-sec.png' });
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// analyse average + stddev of color
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const {data,info} = await sharp('/tmp/shader-sec.png').raw().toBuffer({resolveWithObject:true});
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let n=info.width*info.height, rs=0,gs=0,bs=0; const cols=new Set();
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for(let i=0;i<data.length;i+=3){ rs+=data[i]; gs+=data[i+1]; bs+=data[i+2];
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if(i%900===0) cols.add(`${data[i]>>4},${data[i+1]>>4},${data[i+2]>>4}`); }
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console.log('avg rgb', Math.round(rs/n),Math.round(gs/n),Math.round(bs/n));
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console.log('distinct coarse colors sampled:', cols.size);
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await b.close();
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