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-/*
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- Render each OSMD sample, grab the generated images, and
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- dump them into a local directory as SVG files.
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-
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- inspired by Vexflow's generate_png_images and vexflow-tests.js
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-
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- This can be used to generate SVGs from OSMD without a browser.
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-
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- Note: this script needs to "fake" quite a few browser elements, like window, document, and the DOM,
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- which otherwise are missing in pure nodejs, causing errors in OSMD.
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- There are also some hacks needed to set the container size (offsetWidth) correctly.
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-
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- Otherwise you'd need to run a headless browser, which is way slower,
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- see the semi-obsolete generateDiffImagesPuppeteerLocalhost.js
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-*/
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-
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-function sleep (ms) {
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- return new Promise((resolve) => {
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- setTimeout(resolve, ms)
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- })
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-}
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-
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-// global variables
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-// (without these being global, we'd have to pass many of these values to the generateSampleSvg function)
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-let [osmdBuildDir, sampleDir, imageDir, pageWidth, pageHeight, filterRegex, mode, debugSleepTimeString] = process.argv.slice(2, 10)
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-if (!osmdBuildDir || !sampleDir || !imageDir) {
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- console.log('usage: ' +
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- 'node test/Util/generateSvg_browserless.js osmdBuildDir sampleDirectory imageDirectory [width|0] [height|0] [filterRegex|all|allSmall] [--debug|--osmdtesting] [debugSleepTime]')
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- console.log(' (use pageWidth and pageHeight 0 to not divide the rendering into pages (endless page))')
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- console.log(' (use "all" to skip filterRegex parameter. "allSmall" with --osmdtesting skips two huge OSMD samples that take forever to render)')
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- console.log('example: node test/Util/generateSvg_browserless.js ../../build ./test/data/ ./export 210 297 allSmall --debug 5000')
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- console.log('Error: need osmdBuildDir, sampleDir and imageDir. Exiting.')
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- process.exit(1)
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-}
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-let pageFormat
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-
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-if (!mode) {
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- mode = ''
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-}
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-
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-let OSMD // can only be required once window was simulated
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-const FS = require('fs')
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-
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-async function init () {
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- console.log('[OSMD.generateImages] init')
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-
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- const osmdTestingMode = mode.includes('osmdtesting') // can also be --debugosmdtesting
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- const osmdTestingSingleMode = mode.includes('osmdtestingsingle')
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- const DEBUG = mode.startsWith('--debug')
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- // const debugSleepTime = Number.parseInt(process.env.GENERATE_DEBUG_SLEEP_TIME) || 0; // 5000 works for me [sschmidTU]
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- if (DEBUG) {
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- // console.log(' (note that --debug slows down the script by about 0.3s per file, through logging)')
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- const debugSleepTimeMs = Number.parseInt(debugSleepTimeString)
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- if (debugSleepTimeMs > 0) {
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- console.log('debug sleep time: ' + debugSleepTimeString)
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- await sleep(Number.parseInt(debugSleepTimeMs))
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- // [VSCode] apparently this is necessary for the debugger to attach itself in time before the program closes.
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- // sometimes this is not enough, so you may have to try multiple times or increase the sleep timer. Unfortunately debugging nodejs isn't easy.
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- }
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- }
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- debug('sampleDir: ' + sampleDir, DEBUG)
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- debug('imageDir: ' + imageDir, DEBUG)
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-
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- pageFormat = 'Endless'
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- pageWidth = Number.parseInt(pageWidth)
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- pageHeight = Number.parseInt(pageHeight)
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- const endlessPage = !(pageHeight > 0 && pageWidth > 0)
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- if (!endlessPage) {
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- pageFormat = `${pageWidth}x${pageHeight}`
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- }
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-
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- // ---- hacks to fake Browser elements OSMD and Vexflow need, like window, document, and a canvas HTMLElement ----
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- var jsdom = require('jsdom')
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- const dom = new jsdom.JSDOM('<!DOCTYPE html></html>')
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- // eslint-disable-next-line no-global-assign
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- window = dom.window
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- // eslint-disable-next-line no-global-assign
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- document = dom.window.document
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-
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- // eslint-disable-next-line no-global-assign
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- global.window = dom.window
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- // eslint-disable-next-line no-global-assign
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- global.document = window.document
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- window.console = console // probably does nothing
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- global.HTMLElement = window.HTMLElement
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- global.HTMLAnchorElement = window.HTMLAnchorElement
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- global.XMLHttpRequest = window.XMLHttpRequest
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- global.DOMParser = window.DOMParser
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- global.Node = window.Node
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-
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- // fix Blob not found (to support external modules like is-blob)
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- global.Blob = require('cross-blob')
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-
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- const div = document.createElement('div')
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- div.id = 'browserlessDiv'
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- document.body.appendChild(div)
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- // const canvas = document.createElement('canvas')
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- // div.canvas = document.createElement('canvas')
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-
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- const zoom = 1.0
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- // width of the div / PNG generated
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- let width = pageWidth * zoom
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- // TODO sometimes the width is way too small for the score, may need to adjust zoom.
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- if (endlessPage) {
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- width = 1440
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- }
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- let height = pageHeight
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- if (endlessPage) {
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- height = 32767
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- }
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- div.width = width
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- div.height = height
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- div.offsetWidth = width // doesn't work, offsetWidth is always 0 from this. see below
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- div.clientWidth = width
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- div.clientHeight = height
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- div.scrollHeight = height
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- div.scrollWidth = width
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- div.setAttribute('width', width)
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- div.setAttribute('height', height)
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- div.setAttribute('offsetWidth', width)
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- // debug('div.offsetWidth: ' + div.offsetWidth, DEBUG) // 0 here, set correctly later
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- // debug('div.height: ' + div.height, DEBUG)
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-
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- // hack: set offsetWidth reliably
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- Object.defineProperties(window.HTMLElement.prototype, {
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- offsetLeft: {
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- get: function () { return parseFloat(window.getComputedStyle(this).marginTop) || 0 }
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- },
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- offsetTop: {
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- get: function () { return parseFloat(window.getComputedStyle(this).marginTop) || 0 }
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- },
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- offsetHeight: {
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- get: function () { return height }
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- },
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- offsetWidth: {
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- get: function () { return width }
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- }
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- })
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- debug('div.offsetWidth: ' + div.offsetWidth, DEBUG)
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- debug('div.height: ' + div.height, DEBUG)
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- // ---- end browser hacks (hopefully) ----
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-
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- // load globally
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- OSMD = require(`${osmdBuildDir}/opensheetmusicdisplay.min.js`) // window needs to be available before we can require OSMD
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-
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- // Create the image directory if it doesn't exist.
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- FS.mkdirSync(imageDir, { recursive: true })
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-
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- const sampleDirFilenames = FS.readdirSync(sampleDir)
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- let samplesToProcess = [] // samples we want to process/generate pngs of, excluding the filtered out files/filenames
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- for (const sampleFilename of sampleDirFilenames) {
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- if (osmdTestingMode && filterRegex === 'allSmall') {
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- if (sampleFilename.match('^(Actor)|(Gounod)')) { // TODO maybe filter by file size instead
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- debug('filtering big file: ' + sampleFilename, DEBUG)
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- continue
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- }
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- }
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- // eslint-disable-next-line no-useless-escape
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- if (sampleFilename.match('^.*(\.xml)|(\.musicxml)|(\.mxl)$')) {
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- // console.log('found musicxml/mxl: ' + sampleFilename)
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- samplesToProcess.push(sampleFilename)
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- } else {
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- debug('discarded file/directory: ' + sampleFilename, DEBUG)
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- }
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- }
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-
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- // filter samples to process by regex if given
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- if (filterRegex && filterRegex !== '' && filterRegex !== 'all' && !(osmdTestingMode && filterRegex === 'allSmall')) {
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- debug('filtering samples for regex: ' + filterRegex, DEBUG)
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- samplesToProcess = samplesToProcess.filter((filename) => filename.match(filterRegex))
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- debug(`found ${samplesToProcess.length} matches: `, DEBUG)
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- for (let i = 0; i < samplesToProcess.length; i++) {
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- debug(samplesToProcess[i], DEBUG)
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- }
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- }
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-
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- const osmdInstance = new OSMD.OpenSheetMusicDisplay(div, {
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- autoResize: false,
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- backend: 'svg',
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- pageBackgroundColor: '#FFFFFF',
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- pageFormat: pageFormat
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- // defaultFontFamily: 'Arial',
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- // drawTitle: false
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- })
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- // for more options check OSMDOptions.ts
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-
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- // you can set finer-grained rendering/engraving settings in EngravingRules:
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- // osmdInstance.EngravingRules.TitleTopDistance = 5.0 // 5.0 is default
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- // (unless in osmdTestingMode, these will be reset with drawingParameters default)
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- // osmdInstance.EngravingRules.PageTopMargin = 5.0 // 5 is default
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- // osmdInstance.EngravingRules.PageBottomMargin = 5.0 // 5 is default. <5 can cut off scores that extend in the last staffline
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- // note that for now the png and canvas will still have the height given in the script argument,
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- // so even with a margin of 0 the image will be filled to the full height.
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- // osmdInstance.EngravingRules.PageLeftMargin = 5.0 // 5 is default
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- // osmdInstance.EngravingRules.PageRightMargin = 5.0 // 5 is default
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- // osmdInstance.EngravingRules.MetronomeMarkXShift = -8; // -6 is default
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- // osmdInstance.EngravingRules.DistanceBetweenVerticalSystemLines = 0.15; // 0.35 is default
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- // for more options check EngravingRules.ts (though not all of these are meant and fully supported to be changed at will)
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-
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- if (DEBUG) {
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- osmdInstance.setLogLevel('debug')
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- // console.log(`osmd PageFormat: ${osmdInstance.EngravingRules.PageFormat.width}x${osmdInstance.EngravingRules.PageFormat.height}`)
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- console.log(`osmd PageFormat idString: ${osmdInstance.EngravingRules.PageFormat.idString}`)
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- console.log('PageHeight: ' + osmdInstance.EngravingRules.PageHeight)
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- } else {
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- osmdInstance.setLogLevel('info') // doesn't seem to work, log.debug still logs
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- }
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-
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- debug('[OSMD.generateImages] starting loop over samples, saving images to ' + imageDir, DEBUG)
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- for (let i = 0; i < samplesToProcess.length; i++) {
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- var sampleFilename = samplesToProcess[i]
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- debug('sampleFilename: ' + sampleFilename, DEBUG)
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-
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- await generateSampleSvg(sampleFilename, sampleDir, osmdInstance, osmdTestingMode, false)
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-
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- if (osmdTestingMode && !osmdTestingSingleMode && sampleFilename.startsWith('Beethoven') && sampleFilename.includes('Geliebte')) {
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- // generate one more testing image with skyline and bottomline. (startsWith 'Beethoven' don't catch the function test)
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- await generateSampleSvg(sampleFilename, sampleDir, osmdInstance, osmdTestingMode, true, DEBUG)
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- }
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- }
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-
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- console.log('[OSMD.generateImages] done, exiting.')
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-}
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-
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-// eslint-disable-next-line
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-// let maxRss = 0, maxRssFilename = '' // to log memory usage (debug)
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-async function generateSampleSvg (sampleFilename, directory, osmdInstance, osmdTestingMode,
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- includeSkyBottomLine = false, DEBUG = false) {
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- var samplePath = directory + '/' + sampleFilename
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- let loadParameter = FS.readFileSync(samplePath)
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-
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- if (sampleFilename.endsWith('.mxl')) {
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- loadParameter = await OSMD.MXLHelper.MXLtoXMLstring(loadParameter)
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- } else {
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- loadParameter = loadParameter.toString()
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- }
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- // console.log('loadParameter: ' + loadParameter)
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- // console.log('typeof loadParameter: ' + typeof loadParameter)
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-
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- // set sample-specific options for OSMD visual regression testing
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- if (osmdTestingMode) {
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- const isFunctionTestAutobeam = sampleFilename.startsWith('OSMD_function_test_autobeam')
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- const isFunctionTestAutoColoring = sampleFilename.startsWith('OSMD_function_test_auto-custom-coloring')
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- const isFunctionTestSystemAndPageBreaks = sampleFilename.startsWith('OSMD_Function_Test_System_and_Page_Breaks')
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- const isFunctionTestDrawingRange = sampleFilename.startsWith('OSMD_function_test_measuresToDraw_')
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- const defaultOrCompactTightMode = sampleFilename.startsWith('OSMD_Function_Test_Container_height') ? 'compacttight' : 'default'
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- const isTestFlatBeams = sampleFilename.startsWith('test_drum_tuplet_beams')
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- osmdInstance.setOptions({
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- autoBeam: isFunctionTestAutobeam, // only set to true for function test autobeam
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- coloringMode: isFunctionTestAutoColoring ? 2 : 0,
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- coloringSetCustom: isFunctionTestAutoColoring ? ['#d82c6b', '#F89D15', '#FFE21A', '#4dbd5c', '#009D96', '#43469d', '#76429c', '#ff0000'] : undefined,
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- colorStemsLikeNoteheads: isFunctionTestAutoColoring,
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- drawingParameters: defaultOrCompactTightMode, // note: default resets all EngravingRules. could be solved differently
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- drawFromMeasureNumber: isFunctionTestDrawingRange ? 9 : 1,
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- drawUpToMeasureNumber: isFunctionTestDrawingRange ? 12 : Number.MAX_SAFE_INTEGER,
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- newSystemFromXML: isFunctionTestSystemAndPageBreaks,
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- newPageFromXML: isFunctionTestSystemAndPageBreaks,
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- pageBackgroundColor: '#FFFFFF', // reset by drawingparameters default
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- pageFormat: pageFormat // reset by drawingparameters default
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- })
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- osmdInstance.drawSkyLine = includeSkyBottomLine // if includeSkyBottomLine, draw skyline and bottomline, else not
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- osmdInstance.drawBottomLine = includeSkyBottomLine
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- if (isTestFlatBeams) {
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- osmdInstance.EngravingRules.FlatBeams = true
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- // osmdInstance.EngravingRules.FlatBeamOffset = 30;
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- osmdInstance.EngravingRules.FlatBeamOffset = 10
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- osmdInstance.EngravingRules.FlatBeamOffsetPerBeam = 10
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- } else {
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- osmdInstance.EngravingRules.FlatBeams = false
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- }
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- }
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-
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- try {
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- await osmdInstance.load(loadParameter) // if using load.then() without await, memory will not be freed up between renders
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- } catch (ex) {
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- console.error('load error: ' + ex)
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- }
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-
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- debug('xml loaded', DEBUG)
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- try {
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- await osmdInstance.render()
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- } catch (ex) {
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- console.log('renderError: ' + ex)
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- }
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- debug('rendered', DEBUG)
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-
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- const markupStrings = []
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- let svgElement
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- // This loop supports all the pages you might possibly wish for, no?
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- for (let pageNumber = 1; pageNumber < Number.POSITIVE_INFINITY; pageNumber++) {
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- svgElement = document.getElementById('osmdSvgPage' + pageNumber)
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- if (!svgElement) {
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- break
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- }
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- // The important xmlns attribute is not serialized unless we set it here
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- svgElement.setAttribute('xmlns', 'http://www.w3.org/2000/svg')
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- markupStrings.push(svgElement.outerHTML)
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- }
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- for (let urlIndex = 0; urlIndex < markupStrings.length; urlIndex++) {
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- const pageNumberingString = `${urlIndex + 1}`
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- const skybottomlineString = includeSkyBottomLine ? 'skybottomline_' : ''
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- // pageNumberingString = markupStrings.length > 0 ? pageNumberingString : '' // don't put '_1' at the end if only one page. though that may cause more work
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- var pageFilename = `${imageDir}/${sampleFilename}_${skybottomlineString}${pageNumberingString}.svg`
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-
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- const markup = markupStrings[urlIndex]
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- if (!markup) {
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- console.log(`error: could not get markup (SVG data) for page ${urlIndex + 1} of sample: ${sampleFilename}`)
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- continue
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- }
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-
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- debug('got image data, saving to: ' + pageFilename, DEBUG)
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- FS.writeFileSync(pageFilename, markup, { encoding: 'utf-8' })
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-
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- // debug: log memory usage
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- // const usage = process.memoryUsage()
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- // for (const entry of Object.entries(usage)) {
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- // if (entry[0] === 'rss') {
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- // if (entry[1] > maxRss) {
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- // maxRss = entry[1]
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- // maxRssFilename = pageFilename
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- // }
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- // }
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- // console.log(entry[0] + ': ' + entry[1] / (1024 * 1024) + 'mb')
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- // }
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- // console.log('maxRss: ' + (maxRss / 1024 / 1024) + 'mb' + ' for ' + maxRssFilename)
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- }
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- // console.log('maxRss total: ' + (maxRss / 1024 / 1024) + 'mb' + ' for ' + maxRssFilename)
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-
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- // await sleep(5000)
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- // }) // end read file
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-}
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-
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-function debug (msg, debugEnabled) {
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- if (debugEnabled) {
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- console.log(msg)
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- }
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-}
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-
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-init()
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sschmid