IWMBrowser/iwmlib
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iwmlib
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Fixed memory problems of deepzoom images.

This commit is contained in:
Uwe Oestermeier 2024-05-24 10:29:24 +02:00
parent 13ea23186f
commit 81f18ea2e9
4 changed files with 85 additions and 36 deletions
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22
lib/pixi/app.js
View File

@ -98,7 +98,7 @@ export default class PIXIApp extends PIXI.Application {
roundPixels = true,
monkeyPatchMapping = true,
adaptive = true,
graphql = false,
graphql = false
}) {
const fullScreen = !width || !height
@ -116,7 +116,7 @@ export default class PIXIApp extends PIXI.Application {
resolution,
autoResize,
backgroundColor,
forceCanvas,
forceCanvas
})
this.width = width
@ -137,7 +137,7 @@ export default class PIXIApp extends PIXI.Application {
this.graphql = graphql
if (fullScreen || autoResize) {
console.log('App is in fullScreen mode or autoResize mode')
const resizeDebounced = debounce((event) => this.resizeApp(event), 50)
const resizeDebounced = debounce(event => this.resizeApp(event), 50)
window.addEventListener('resize', resizeDebounced)
document.body.addEventListener('orientationchange', this.checkOrientation.bind(this))
}
@ -167,25 +167,25 @@ export default class PIXIApp extends PIXI.Application {
// GraphQL
if (this.graphql && typeof apollo !== 'undefined') {
const networkInterface = apollo.createNetworkInterface({
uri: '/graphql',
uri: '/graphql'
})
const wsClient = new subscriptions.SubscriptionClient(`wss://${location.hostname}/subscriptions`, {
reconnect: true,
connectionParams: {},
connectionParams: {}
})
const networkInterfaceWithSubscriptions = subscriptions.addGraphQLSubscriptions(networkInterface, wsClient)
this.apolloClient = new apollo.ApolloClient({
networkInterface: networkInterfaceWithSubscriptions,
networkInterface: networkInterfaceWithSubscriptions
})
}
// progress
this._progress = new Progress(
Object.assign({ theme: this.theme }, this.progressOpts, {
app: this,
app: this
})
)
this._progress.visible = false
@ -214,7 +214,7 @@ export default class PIXIApp extends PIXI.Application {
if (value != this.orient) {
setTimeout(
100,
function () {
function() {
this.orientationChanged(true)
}.bind(this)
)
@ -469,7 +469,7 @@ export default class PIXIApp extends PIXI.Application {
loadSprites(resources, loaded = null, { resolutionDependent = true, progress = false } = {}) {
this.loadTextures(
resources,
(textures) => {
textures => {
let sprites = new Map()
for (let [key, texture] of textures) {
@ -528,7 +528,7 @@ export default class PIXIApp extends PIXI.Application {
}
if (progress) {
loader.on('progress', (e) => {
loader.on('progress', e => {
this.progress(e.progress)
})
}
@ -719,7 +719,7 @@ class FpsDisplay extends PIXI.Graphics {
fontWeight: 'bold',
fill: '#f6f6f6',
stroke: '#434f4f',
strokeThickness: 3,
strokeThickness: 3
})
)
this.text.position.set(6, 6)

44
lib/pixi/deepzoom/image.js
View File

@ -155,7 +155,7 @@ export class DeepZoomInfo {
this.baseURL = this.urlForTile(this.baseLevel, 0, 0, false)
if (loadBaseImage) {
this.imageForURL(this.baseURL, (e) => {
this.imageForURL(this.baseURL, e => {
this.size = [e.target.naturalWidth, e.target.naturalHeight]
this.baseImage = e.target
})
@ -332,7 +332,7 @@ export class DeepZoomImage extends PIXI.Container {
useWorker = '',
minimumLevel = 0,
alpha = 1,
app = window.app,
app = window.app
} = {}
) {
super()
@ -708,7 +708,7 @@ export class DeepZoomImage extends PIXI.Container {
let changed = { added: [], removed: [] }
let newNeeded = new Map()
let { centerCol, centerRow, needed } = this.neededTiles(tiles, level)
needed.forEach((d) => {
needed.forEach(d => {
let [url, col, row] = d
newNeeded.set(url, [col, row])
if (!tiles.requested.has(url)) {
@ -856,7 +856,7 @@ export class DeepZoomImage extends PIXI.Container {
}
hideTilesAboveLevel(level) {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (tiles.level > level) {
tiles.visible = false
@ -869,7 +869,7 @@ export class DeepZoomImage extends PIXI.Container {
* @param {number} level - The zoom level of the grid
*/
destroyTilesAboveLevel(level) {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (tiles.level > level && !tiles.keep) {
for (let url of tiles.available.keys()) {
@ -882,18 +882,38 @@ export class DeepZoomImage extends PIXI.Container {
}
destroyAllTiles() {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
this.destroyTiles(key)
})
}
/** Destroys all tiles and laywer above the current level to ensure that the memory can
* be reused. This must be called from time to time to free load worker which otherwise would
* consume memory and threads permanentely.
*/
destroyUnusedTilesAndLayers() {
this.destroyTilesAboveLevel(this.currentLevel)
let candidates = []
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (tiles.level > this.currentLevel) {
candidates.push(key)
}
})
for (let key of candidates) {
let tiles = this.tileLayers[key]
tiles.destroy()
delete this.tileLayers[key]
}
}
/**
* Tint tiles in all layers that are no longer needed
*
* @memberof DeepZoomImage
*/
tintObsoleteTiles() {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
tiles.untintTiles()
if (!tiles.keep) {
@ -908,7 +928,7 @@ export class DeepZoomImage extends PIXI.Container {
* @memberof DeepZoomImage
*/
destroyUnneededTiles() {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (!tiles.keep) {
tiles.destroyUnneededTiles()
@ -922,7 +942,7 @@ export class DeepZoomImage extends PIXI.Container {
* @memberof DeepZoomImage
*/
destroyObsoleteTiles() {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (!tiles.keep) {
tiles.destroyObsoleteTiles()
@ -937,7 +957,7 @@ export class DeepZoomImage extends PIXI.Container {
* @memberof DeepZoomImage
*/
destroyTiles() {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (!tiles.keep) {
tiles.destroyTiles(this.quadTrees)
@ -949,7 +969,7 @@ export class DeepZoomImage extends PIXI.Container {
* @param {number} level - The zoom level of the grid
*/
tintTilesBelowLevel(level) {
Object.keys(this.tileLayers).forEach((key) => {
Object.keys(this.tileLayers).forEach(key => {
let tiles = this.tileLayers[key]
if (tiles.level < level) {
tiles.tintTiles(this.quadTrees)
@ -989,7 +1009,7 @@ export class DeepZoomImage extends PIXI.Container {
this.fastLoads += 1
this.populateTiles(currentTiles, this.currentLevel, {
onlyone: false,
about: event.about,
about: event.about
})
if (this.fastLoads == 3) {
this.fastLoads = 0

10
lib/pixi/deepzoom/loader.js
View File

@ -40,7 +40,7 @@ export class TileLoader {
if (this.loaded.has(url)) this.loaded.delete(url)
if (this.loading.has(url)) this.loading.delete(url)
//Tile.unschedule(url)
this.loadQueue = this.loadQueue.filter((item) => item != url)
this.loadQueue = this.loadQueue.filter(item => item != url)
}
/** Cancels loading by clearing the load queue **/
@ -246,7 +246,7 @@ export class RequestTileLoader extends TileLoader {
let xhr = new XMLHttpRequest()
xhr.open('GET', url, false)
xhr.responseType = 'arraybuffer'
xhr.onload = (e) => {
xhr.onload = e => {
let CompressedImage = PIXI.compressedTextures.CompressedImage
let compressed = CompressedImage.loadFromArrayBuffer(xhr.response, url)
let base = new PIXI.BaseTexture(compressed)
@ -317,10 +317,10 @@ export class RequestTileLoader extends TileLoader {
export class WorkerTileLoader extends TileLoader {
constructor(tiles, workerPath) {
super(tiles)
this.debug = false
let worker = (this.worker = new Worker(workerPath))
worker.onmessage = (event) => {
worker.onmessage = event => {
if (event.data.success) {
let { url, col, row, buffer } = event.data
//console.log("WorkerTileLoader.loaded", url, buffer)
@ -353,11 +353,13 @@ export class WorkerTileLoader extends TileLoader {
}
cancel() {
if (this.debug) console.log('canceling worker')
super.cancel()
this.worker.postMessage({ command: 'abort' })
}
destroy() {
if (this.debug) console.log('destroying worker')
this.worker.postMessage({ command: 'abort' })
this.worker.terminate()
this.worker = null

45
lib/pixi/deepzoom/tileloader.js
View File

@ -1,35 +1,59 @@
let loadQueue = []
let requestPool = []
let pendingRequests = new Map()
let requestCount = 0
const batchSize = 8
const debug = false
console.log('tileloader.js')
function recycledXMLHttpRequest() {
// https://nullprogram.com/blog/2013/02/08/
if (requestPool.length > 0) {
return requestPool.pop()
}
requestCount += 1
if (debug) console.log('create XMLHttpRequest', requestCount)
let xhr = new XMLHttpRequest()
return xhr
}
function load() {
while (loadQueue.length > 0 && pendingRequests.size < batchSize) {
let tile = loadQueue.shift()
let [col, row, url] = tile
let xhr = new XMLHttpRequest()
xhr.responseType = 'arraybuffer'
xhr.onload = (event) => {
pendingRequests.delete(url)
let xhr = recycledXMLHttpRequest()
xhr.onload = event => {
let buffer = xhr.response
postMessage({ success: true, url, col, row, buffer }, [buffer])
}
xhr.onerror = (event) => {
pendingRequests.delete(url)
}
xhr.onerror = event => {
let buffer = null
postMessage({ success: false, url, col, row, buffer })
pendingRequests.delete(url)
}
xhr.onreadystatechange = () => {
// In local files, status is 0 upon success in Mozilla Firefox
if (xhr.readyState === XMLHttpRequest.DONE) {
pendingRequests.delete(url)
requestPool.push(xhr)
if (debug) console.log('resuse XMLHttpRequest')
}
}
if (debug) console.log('open XMLHttpRequest')
xhr.open('GET', url, true)
xhr.responseType = 'arraybuffer'
if (debug) console.log('send XMLHttpRequest')
xhr.send()
pendingRequests.set(url, xhr)
}
if (loadQueue.length > 0) setTimeout(load, 1000 / 120)
else {
if (debug) console.log('Ready')
if (debug) console.log('tileloader ready')
}
}
self.onmessage = (event) => {
self.onmessage = event => {
let msg = event.data
switch (msg.command) {
case 'load':
@ -40,10 +64,13 @@ self.onmessage = (event) => {
break
case 'abort':
loadQueue = []
requestPool = []
for (let xhr of pendingRequests.values()) {
xhr.abort()
}
if (debug) console.log('Abort')
pendingRequests.clear()
if (debug) console.log('tileloader aborted')
console.log('tileloader aborted')
break
default:
console.warn('Unknown worker command: ' + msg.command)