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Consistent Tile.destroy() with texture caching
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<!-- | ||
This is useful for debugging memory usage. | ||
--> | ||
<!DOCTYPE html> | ||
<script | ||
src="https://greggman.github.io/webgl-memory/webgl-memory.js" | ||
crossorigin | ||
></script> | ||
<html> | ||
|
||
<head> | ||
<title>Mapbox GL JS Pathological FlyTo</title> | ||
<meta charset='utf-8'> | ||
<meta | ||
name="viewport" | ||
content="width=device-width, initial-scale=1.0, user-scalable=no" | ||
> | ||
<link | ||
rel='stylesheet' | ||
href='../dist/mapbox-gl.css' | ||
/> | ||
<style> | ||
body { | ||
margin: 0; | ||
padding: 0; | ||
} | ||
|
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#overlay { | ||
position: absolute; | ||
color: white; | ||
font-family: system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif; | ||
text-shadow: 0px 2px 2px black; | ||
z-index: 100; | ||
font-size: 150%; | ||
background-color: rgba(0, 0, 0, 0.5); | ||
padding: 10px; | ||
} | ||
|
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html, | ||
body, | ||
#map { | ||
height: 100%; | ||
} | ||
</style> | ||
</head> | ||
|
||
<body> | ||
<div style="padding: 5px;"> | ||
<button id="start">Start Flying Around</button> | ||
<button id="cancel">Stop Flying Around</button> | ||
<button id="loadSatellite">Load Satellite Streets</button> | ||
<button id="loadTerrain">Load Terrain</button> | ||
<button id="loadGeo">Load Geojson</button> | ||
</div> | ||
<div id='map'> | ||
<div id="overlay"></div> | ||
</div> | ||
|
||
<script src='../dist/mapbox-gl-dev.js'></script> | ||
<script src='../debug/access_token_generated.js'></script> | ||
<script> | ||
let goat = 0; | ||
let pleaseStop = null; | ||
let totals = []; | ||
|
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document.getElementById("start").addEventListener("click", () => { | ||
totals = []; | ||
pleaseStop = setInterval(() => { | ||
if ((goat % 2) === 0) { | ||
map.flyTo({ | ||
center: [-122.41381885225483 + Math.random() * 20, 37.73787623085941], | ||
zoom: 16, | ||
duration: 7000, | ||
preloadOnly: false | ||
}); | ||
} else { | ||
map.flyTo({ | ||
center: [148.44217489435937 - Math.random() * 10, -35.721640804238895], | ||
zoom: 16, | ||
duration: 7000, | ||
preloadOnly: false | ||
}); | ||
} | ||
|
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goat++; | ||
|
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}, 5000); | ||
}); | ||
|
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document.getElementById("cancel").addEventListener("click", () => { | ||
window.pleaseStop = clearInterval(pleaseStop); | ||
}); | ||
|
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document.getElementById("loadGeo").addEventListener("click", () => { | ||
totals = []; | ||
map.addSource('earthquakes', { | ||
type: 'geojson', | ||
// Use a URL for the value for the `data` property. | ||
data: 'https://docs.mapbox.com/mapbox-gl-js/assets/earthquakes.geojson' | ||
}); | ||
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map.addLayer({ | ||
'id': 'earthquakes-layer', | ||
'type': 'circle', | ||
'source': 'earthquakes', | ||
'paint': { | ||
'circle-radius': 4, | ||
'circle-stroke-width': 2, | ||
'circle-color': 'red', | ||
'circle-stroke-color': 'white' | ||
} | ||
}); | ||
|
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}); | ||
|
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var map = window.map = new mapboxgl.Map({ | ||
container: 'map', | ||
zoom: 12.5, | ||
center: [-122.4194, 37.7749], | ||
hash: false, | ||
style: "mapbox://styles/mapbox/streets-v11?optimize=true" | ||
|
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}); | ||
|
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document.getElementById("loadTerrain").addEventListener("click", () => { | ||
totals = []; | ||
map.addSource('mapbox-dem', { | ||
'type': 'raster-dem', | ||
'url': 'mapbox://mapbox.mapbox-terrain-dem-v1', | ||
'tileSize': 512, | ||
'maxzoom': 14 | ||
}); | ||
|
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map.setTerrain({'source': 'mapbox-dem', 'exaggeration': 1.5}); | ||
}); | ||
|
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document.getElementById("loadSatellite").addEventListener("click", () => { | ||
totals = []; | ||
map.setStyle("mapbox://styles/mapbox/satellite-streets-v11?optimize=true"); | ||
}); | ||
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const gl = map.getCanvas().getContext("webgl2"); | ||
const ext = gl.getExtension('GMAN_webgl_memory'); | ||
const gpu = ext.getMemoryInfo(); | ||
let prev = gpu; | ||
let prevMax = 0; | ||
let prevAvg = 0; | ||
console.log("memory info", gpu); | ||
|
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// Limit moving average to 1000 items | ||
const limit = (arr) => { | ||
if (arr.length > 1000) { | ||
arr.shift(); | ||
} | ||
}; | ||
|
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// Calculate a moving average for a number | ||
const movingAverage = (arr) => { | ||
const count = arr.length; | ||
const sum = arr.reduce((a, b) => a + b, 0); | ||
return Math.round(sum / count); | ||
}; | ||
|
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// Calculate the maximum value in an array | ||
const max = (arr) => { | ||
return arr.reduce((a, b) => Math.max(a, b)); | ||
}; | ||
|
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const highlightDiff = (current, previous, count = 0) => { | ||
if (current > previous) { | ||
return `<span style="color: red">${count === 0 ? "" : count + " / "}${Math.round(current / 1024 / 1024)}<small>MB</small></span>`; | ||
} else { | ||
return `<span style="color: green">${count === 0 ? "" : count + " / "}${Math.round(current / 1024 / 1024)}<small>MB</small></span>`; | ||
} | ||
}; | ||
|
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setInterval(() => { | ||
const gpu = ext.getMemoryInfo(); | ||
const overlay = document.getElementById("overlay"); | ||
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totals.push(gpu.memory.total); | ||
const currAvg = movingAverage(totals); | ||
const currMax = max(totals); | ||
limit(totals); | ||
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let html = `GPU Memory <br />`; | ||
html += `total: ${highlightDiff(gpu.memory.total, prev.memory.total)} (avg: ${highlightDiff(currAvg, prevAvg)}; max: ${highlightDiff(currMax, prevMax)}) <br />`; | ||
html += `drawingbuffer: ${highlightDiff(gpu.memory.drawingbuffer, prev.memory.drawingbuffer)} <br />`; | ||
html += `buffer: ${highlightDiff(gpu.memory.buffer, prev.memory.buffer, gpu.resources.buffer)} <br />`; | ||
html += `texture: ${highlightDiff(gpu.memory.texture, prev.memory.texture, gpu.resources.texture)} <br />`; | ||
overlay.innerHTML = html; | ||
totals.push(gpu.memory.total); | ||
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prev = gpu; | ||
prevMax = currMax; | ||
prevAvg = currAvg; | ||
}, 50); | ||
</script> | ||
</body> | ||
|
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</html> |
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