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Add uSVG protobuf renderer (internal-1759)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,198 @@ | ||
| <!DOCTYPE html> | ||
| <html> | ||
|
|
||
| <head> | ||
| <title>Mapbox GL JS debug page</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> | ||
| .grid-container { | ||
| display: grid; | ||
| grid-template-columns: auto auto auto; | ||
| gap: 20px; | ||
| align-items: center; | ||
| font: 16px Helvetica, sans-serif; | ||
| } | ||
| .grid-item { | ||
| text-align: center; | ||
| } | ||
| .full-width { | ||
| grid-column: 1 / -1; | ||
| text-align: left; | ||
| padding: 20px; | ||
| } | ||
| .label { | ||
| margin-top: 15px; | ||
| } | ||
| summary { | ||
| font: 1.2em sans-serif; | ||
| } | ||
| #debug { | ||
| padding: 20px; | ||
| text-align: center; | ||
| } | ||
| #debug canvas { | ||
| border: 1px solid red; | ||
| } | ||
| </style> | ||
| </head> | ||
|
|
||
| <body> | ||
| <div class="grid-container"> | ||
| <div class="grid-item"> | ||
| <img id="expected" width="200px"></canvas> | ||
| <div class="label">Expected</div> | ||
| </div> | ||
| <div class="grid-item"> | ||
| <canvas id="actual" width="200px"></canvas> | ||
| <div class="label">Actual</div> | ||
| </div> | ||
| <div class="grid-item"> | ||
| <canvas id="diff" width="200px"></canvas> | ||
| <div class="label" id="diff-label">Diff</div> | ||
| </div> | ||
| </div> | ||
| <div id="debug"></div> | ||
| <details open> | ||
| <summary>Source</summary> | ||
| <p><pre><code id="source"></code></pre></p> | ||
| </details> | ||
| <details open> | ||
| <summary>uSVG</summary> | ||
| <p><pre><code id="parsed"></code></pre></p> | ||
| </details> | ||
|
|
||
|
|
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| <script type="module"> | ||
| import Pbf from 'https://esm.run/pbf'; | ||
| import {Pane} from 'https://esm.run/tweakpane'; | ||
| import pixelmatch from 'https://esm.run/pixelmatch'; | ||
| import {readIconSet} from '../src/data/usvg/usvg_pb_decoder.js'; | ||
| import {renderIcon} from '../src/data/usvg/usvg_pb_renderer.js'; | ||
|
|
||
| async function fetchIconSet() { | ||
| const response = await fetch('../test/usvg/test-suite/test-suite.iconset'); | ||
| const arrayBuffer = await response.arrayBuffer(); | ||
| return readIconSet(new Pbf(arrayBuffer)); | ||
| } | ||
|
|
||
| async function render(icon) { | ||
| if (!icon) return; | ||
|
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| console.log(structuredClone(icon.usvg_tree)); | ||
| document.getElementById('parsed').textContent = JSON.stringify(icon.usvg_tree, (key, value) => { | ||
| if (Array.isArray(value) && value[0] && typeof value[0] === 'number') return value.join(', '); | ||
| return value; | ||
| }, 2); | ||
|
|
||
| const actualCanvas = document.getElementById('actual'); | ||
| const actualContext = actualCanvas.getContext('2d'); | ||
| actualContext.clearRect(0, 0, actualCanvas.width, actualCanvas.height); | ||
|
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||
| const transform = new DOMMatrix().scale(2); | ||
| const imageData = renderIcon(icon, transform); | ||
| actualCanvas.width = imageData.width; | ||
| actualCanvas.height = imageData.height; | ||
| actualContext.putImageData(imageData, 0, 0); | ||
|
|
||
| const expectedImage = document.getElementById('expected'); | ||
| const expectedCanvas = document.createElement('canvas'); | ||
| expectedCanvas.width = expectedImage.width = actualCanvas.width; | ||
| expectedCanvas.height = expectedImage.height = actualCanvas.height; | ||
| const expectedContext = expectedCanvas.getContext('2d'); | ||
| expectedContext.clearRect(0, 0, expectedContext.width, expectedContext.height); | ||
|
|
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| expectedImage.src = `../test/usvg/test-suite/${icon.name}.png`; | ||
| await new Promise((resolve) => { | ||
| expectedImage.onload = resolve; | ||
| }); | ||
|
|
||
| expectedContext.drawImage(expectedImage, 0, 0, expectedCanvas.width, expectedCanvas.height); | ||
| const expectedImageData = expectedContext.getImageData(0, 0, expectedCanvas.width, expectedCanvas.height); | ||
|
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||
| fetch(`../test/usvg/test-suite/${icon.name}.svg`) | ||
| .then(response => response.text()) | ||
| .then(text => { | ||
| document.getElementById('source').textContent = text; | ||
| }); | ||
|
|
||
| const diffCanvas = document.getElementById('diff'); | ||
| diffCanvas.width = imageData.width; | ||
| diffCanvas.height = imageData.height; | ||
| const diffContext = diffCanvas.getContext('2d'); | ||
| diffContext.clearRect(0, 0, diffCanvas.width, diffCanvas.height); | ||
|
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| diffContext.clearRect(0, 0, diffCanvas.width, diffCanvas.height); | ||
| const diffImageData = diffContext.createImageData(diffCanvas.width, diffCanvas.height); | ||
|
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||
| try { | ||
| const threshold = 0.3; | ||
| const diff = pixelmatch(imageData.data, expectedImageData.data, diffImageData.data, imageData.width, imageData.height, {threshold}) / (imageData.width * imageData.height); | ||
| diffContext.putImageData(diffImageData, 0, 0); | ||
|
|
||
| const passed = diff <= 0.0002; | ||
| document.getElementById('diff-label').textContent = `Diff: ${diff.toFixed(6)} ${passed ? '✅' : '❌'}`; | ||
| } catch (error) { | ||
| document.getElementById('diff-label').textContent = `Diff: ${error.message} ❌`; | ||
| } | ||
| } | ||
|
|
||
| const iconSet = await fetchIconSet(); | ||
| const initialOptions = iconSet.icons.map((icon, index) => { | ||
| return {text: icon.name, value: index}; | ||
| }); | ||
|
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| if (!location.hash) location.hash = `#${iconSet.icons[0].name}`; | ||
| const iconIndex = iconSet.icons.findIndex(icon => icon.name === location.hash.slice(1)); | ||
| const params = window.params = {icon: iconIndex, filter: ''}; | ||
|
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| const pane = new Pane({title: 'Parameters', expanded: false}); | ||
| pane.addBinding(params, 'filter').on('change', () => { | ||
| const filteredOptions = initialOptions.filter(option => option.text.includes(params.filter)); | ||
| iconBinding.options = filteredOptions; | ||
| }); | ||
|
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| const iconBinding = pane.addBinding(params, 'icon', {label: 'icon', options: initialOptions}); | ||
| iconBinding.on('change', (e) => { | ||
| location.hash = `#${iconSet.icons[params.icon].name}`; | ||
| render(iconSet.icons[e.value]); | ||
| }); | ||
|
|
||
| try { | ||
| render(iconSet.icons[params.icon]); | ||
|
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||
| // render next icon on arrow right key press | ||
| document.addEventListener('keydown', (e) => { | ||
| if (e.code === 'ArrowRight') { | ||
| const currentIconIndex = iconBinding.options.findIndex(option => option.value === params.icon); | ||
| const nextIconIndex = (currentIconIndex + 1) % iconBinding.options.length; | ||
| params.icon = iconBinding.options[nextIconIndex].value; | ||
| iconBinding.refresh(); | ||
| } | ||
| }); | ||
|
|
||
| // render previous icon on arrow left key press | ||
| document.addEventListener('keydown', (e) => { | ||
| if (e.code === 'ArrowLeft') { | ||
| const currentIconIndex = iconBinding.options.findIndex(option => option.value === params.icon); | ||
| const previousIconIndex = (currentIconIndex - 1 + iconBinding.options.length) % iconBinding.options.length; | ||
| params.icon = iconBinding.options[previousIconIndex].value; | ||
| iconBinding.refresh(); | ||
| } | ||
| }); | ||
|
|
||
| // toggle page background color on space key press | ||
| document.addEventListener('keydown', (e) => { | ||
| if (e.code === 'Space') { | ||
| document.body.style.color = document.body.style.color === 'white' ? 'black' : 'white'; | ||
| document.body.style.backgroundColor = document.body.style.backgroundColor === 'black' ? 'white' : 'black'; | ||
| } | ||
| }); | ||
| } catch (error) { | ||
| console.error(error); | ||
| } | ||
| </script> | ||
| </body> | ||
|
|
||
| </html> |
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