654 lines
22 KiB
TypeScript
654 lines
22 KiB
TypeScript
// pathfinder/client/src/benchmark.ts
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//
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// Copyright © 2017 The Pathfinder Project Developers.
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//
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// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
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// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
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// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
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// option. This file may not be copied, modified, or distributed
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// except according to those terms.
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import * as glmatrix from 'gl-matrix';
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import * as _ from 'lodash';
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import * as opentype from "opentype.js";
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import {AntialiasingStrategy, AntialiasingStrategyName, NoAAStrategy} from "./aa-strategy";
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import {SubpixelAAType} from "./aa-strategy";
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import {AppController, DemoAppController, setSwitchInputsValue} from "./app-controller";
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import PathfinderBufferTexture from './buffer-texture';
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import {OrthographicCamera} from './camera';
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import {UniformMap} from './gl-utils';
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import {PathfinderMeshPack, PathfinderPackedMeshes} from "./meshes";
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import {PathTransformBuffers, Renderer} from './renderer';
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import {ShaderMap, ShaderProgramSource} from "./shader-loader";
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import SSAAStrategy from './ssaa-strategy';
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import {BUILTIN_SVG_URI, SVGLoader} from './svg-loader';
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import {SVGRenderer} from './svg-renderer';
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import {BUILTIN_FONT_URI, ExpandedMeshData, GlyphStore, PathfinderFont, TextFrame} from "./text";
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import {computeStemDarkeningAmount, TextRun} from "./text";
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import {assert, lerp, PathfinderError, unwrapNull, unwrapUndef} from "./utils";
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import {DemoView, Timings} from "./view";
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import {AdaptiveStencilMeshAAAStrategy} from './xcaa-strategy';
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const STRING: string = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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const DEFAULT_FONT: string = 'nimbus-sans';
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const DEFAULT_SVG_FILE: string = 'tiger';
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const TEXT_COLOR: number[] = [0, 0, 0, 255];
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// In milliseconds.
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const MIN_RUNTIME: number = 100;
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const MAX_RUNTIME: number = 3000;
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const ANTIALIASING_STRATEGIES: AntialiasingStrategyTable = {
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none: NoAAStrategy,
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ssaa: SSAAStrategy,
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xcaa: AdaptiveStencilMeshAAAStrategy,
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};
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interface BenchmarkModeMap<T> {
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text: T;
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svg: T;
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}
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type BenchmarkMode = 'text' | 'svg';
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interface AntialiasingStrategyTable {
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none: typeof NoAAStrategy;
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ssaa: typeof SSAAStrategy;
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xcaa: typeof AdaptiveStencilMeshAAAStrategy;
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}
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interface TestParameter {
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start: number;
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stop: number;
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step: number;
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}
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const DISPLAY_HEADER_LABELS: BenchmarkModeMap<string[]> = {
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svg: ["Size (px)", "GPU time (ms)"],
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text: ["Font size (px)", "GPU time per glyph (µs)"],
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};
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const TEST_SIZES: BenchmarkModeMap<TestParameter> = {
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svg: { start: 64, stop: 2048, step: 16 },
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text: { start: 6, stop: 200, step: 1 },
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};
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class BenchmarkAppController extends DemoAppController<BenchmarkTestView> {
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font: PathfinderFont | null = null;
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textRun: TextRun | null = null;
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svgLoader!: SVGLoader;
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mode!: BenchmarkMode;
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protected get defaultFile(): string {
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if (this.mode === 'text')
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return DEFAULT_FONT;
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return DEFAULT_SVG_FILE;
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}
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protected get builtinFileURI(): string {
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if (this.mode === 'text')
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return BUILTIN_FONT_URI;
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return BUILTIN_SVG_URI;
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}
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private optionsModal!: HTMLDivElement;
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private resultsModal!: HTMLDivElement;
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private resultsTableHeader!: HTMLTableSectionElement;
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private resultsTableBody!: HTMLTableSectionElement;
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private resultsPartitioningTimeLabel!: HTMLSpanElement;
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private glyphStore!: GlyphStore;
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private baseMeshes!: PathfinderMeshPack;
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private expandedMeshes!: ExpandedMeshData;
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private size!: number;
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private currentRun!: number;
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private startTime!: number;
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private elapsedTimes!: ElapsedTime[];
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private partitionTime!: number;
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start(): void {
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super.start();
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this.mode = 'text';
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this.optionsModal = unwrapNull(document.getElementById('pf-benchmark-modal')) as
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HTMLDivElement;
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this.resultsModal = unwrapNull(document.getElementById('pf-benchmark-results-modal')) as
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HTMLDivElement;
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this.resultsTableHeader =
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unwrapNull(document.getElementById('pf-benchmark-results-table-header')) as
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HTMLTableSectionElement;
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this.resultsTableBody =
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unwrapNull(document.getElementById('pf-benchmark-results-table-body')) as
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HTMLTableSectionElement;
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this.resultsPartitioningTimeLabel =
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unwrapNull(document.getElementById('pf-benchmark-results-partitioning-time')) as
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HTMLSpanElement;
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const resultsSaveCSVButton =
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unwrapNull(document.getElementById('pf-benchmark-results-save-csv-button'));
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resultsSaveCSVButton.addEventListener('click', () => this.saveCSV(), false);
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const resultsCloseButton =
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unwrapNull(document.getElementById('pf-benchmark-results-close-button'));
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resultsCloseButton.addEventListener('click', () => {
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window.jQuery(this.resultsModal).modal('hide');
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}, false);
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const runBenchmarkButton = unwrapNull(document.getElementById('pf-run-benchmark-button'));
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runBenchmarkButton.addEventListener('click', () => this.runBenchmark(), false);
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const aaLevelFormGroup = unwrapNull(document.getElementById('pf-aa-level-form-group')) as
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HTMLDivElement;
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const benchmarkTextForm = unwrapNull(document.getElementById('pf-benchmark-text-form')) as
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HTMLFormElement;
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const benchmarkSVGForm = unwrapNull(document.getElementById('pf-benchmark-svg-form')) as
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HTMLFormElement;
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window.jQuery(this.optionsModal).modal();
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const benchmarkTextTab = document.getElementById('pf-benchmark-text-tab') as
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HTMLAnchorElement;
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const benchmarkSVGTab = document.getElementById('pf-benchmark-svg-tab') as
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HTMLAnchorElement;
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window.jQuery(benchmarkTextTab).on('shown.bs.tab', event => {
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this.mode = 'text';
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if (aaLevelFormGroup.parentElement != null)
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aaLevelFormGroup.parentElement.removeChild(aaLevelFormGroup);
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benchmarkTextForm.insertBefore(aaLevelFormGroup, benchmarkTextForm.firstChild);
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this.modeChanged();
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});
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window.jQuery(benchmarkSVGTab).on('shown.bs.tab', event => {
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this.mode = 'svg';
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if (aaLevelFormGroup.parentElement != null)
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aaLevelFormGroup.parentElement.removeChild(aaLevelFormGroup);
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benchmarkSVGForm.insertBefore(aaLevelFormGroup, benchmarkSVGForm.firstChild);
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this.modeChanged();
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});
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this.loadInitialFile(this.builtinFileURI);
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}
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protected fileLoaded(fileData: ArrayBuffer, builtinName: string | null): void {
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switch (this.mode) {
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case 'text':
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this.textFileLoaded(fileData, builtinName);
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return;
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case 'svg':
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this.svgFileLoaded(fileData, builtinName);
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return;
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}
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}
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protected createView(areaLUT: HTMLImageElement,
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gammaLUT: HTMLImageElement,
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commonShaderSource: string,
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shaderSources: ShaderMap<ShaderProgramSource>):
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BenchmarkTestView {
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return new BenchmarkTestView(this, areaLUT, gammaLUT, commonShaderSource, shaderSources);
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}
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private modeChanged(): void {
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this.loadInitialFile(this.builtinFileURI);
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if (this.aaLevelSelect != null)
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this.aaLevelSelect.selectedIndex = 0;
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if (this.subpixelAASelect != null)
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this.subpixelAASelect.selectedIndex = 0;
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this.updateAALevel();
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}
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private textFileLoaded(fileData: ArrayBuffer, builtinName: string | null): void {
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const font = new PathfinderFont(fileData, builtinName);
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this.font = font;
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const textRun = new TextRun(STRING, [0, 0], font);
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textRun.layout();
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this.textRun = textRun;
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const textFrame = new TextFrame([textRun], font);
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const glyphIDs = textFrame.allGlyphIDs;
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glyphIDs.sort((a, b) => a - b);
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this.glyphStore = new GlyphStore(font, glyphIDs);
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this.glyphStore.partition().then(result => {
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this.baseMeshes = result.meshes;
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const partitionTime = result.time / this.glyphStore.glyphIDs.length * 1e6;
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const timeLabel = this.resultsPartitioningTimeLabel;
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while (timeLabel.firstChild != null)
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timeLabel.removeChild(timeLabel.firstChild);
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timeLabel.appendChild(document.createTextNode("" + partitionTime));
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const expandedMeshes = textFrame.expandMeshes(this.baseMeshes, glyphIDs);
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this.expandedMeshes = expandedMeshes;
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this.view.then(view => {
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view.recreateRenderer();
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view.attachMeshes([expandedMeshes.meshes]);
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});
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});
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}
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private svgFileLoaded(fileData: ArrayBuffer, builtinName: string | null): void {
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this.svgLoader = new SVGLoader;
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this.svgLoader.loadFile(fileData);
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this.svgLoader.partition().then(meshes => {
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this.view.then(view => {
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view.recreateRenderer();
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view.attachMeshes([new PathfinderPackedMeshes(meshes)]);
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view.initCameraBounds(this.svgLoader.svgViewBox);
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});
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});
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}
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private reset(): void {
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this.currentRun = 0;
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this.startTime = Date.now();
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}
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private runBenchmark(): void {
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window.jQuery(this.optionsModal).modal('hide');
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this.reset();
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this.elapsedTimes = [];
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this.size = TEST_SIZES[this.mode].start;
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this.view.then(view => this.runOneBenchmarkTest(view));
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}
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private runDone(): boolean {
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const totalElapsedTime = Date.now() - this.startTime;
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if (totalElapsedTime < MIN_RUNTIME)
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return false;
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if (totalElapsedTime >= MAX_RUNTIME)
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return true;
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// Compute median absolute devation.
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const elapsedTime = unwrapUndef(_.last(this.elapsedTimes));
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elapsedTime.times.sort((a, b) => a - b);
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const median = unwrapNull(computeMedian(elapsedTime.times));
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const absoluteDeviations = elapsedTime.times.map(time => Math.abs(time - median));
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absoluteDeviations.sort((a, b) => a - b);
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const medianAbsoluteDeviation = unwrapNull(computeMedian(absoluteDeviations));
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const medianAbsoluteDeviationFraction = medianAbsoluteDeviation / median;
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return medianAbsoluteDeviationFraction <= 0.01;
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}
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private runOneBenchmarkTest(view: BenchmarkTestView): void {
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const renderedPromise = new Promise<number>((resolve, reject) => {
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view.renderingPromiseCallback = resolve;
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view.size = this.size;
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});
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renderedPromise.then(elapsedTime => {
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if (this.currentRun === 0)
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this.elapsedTimes.push(new ElapsedTime(this.size));
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unwrapUndef(_.last(this.elapsedTimes)).times.push(elapsedTime);
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this.currentRun++;
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if (this.runDone()) {
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this.reset();
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if (this.size >= TEST_SIZES[this.mode].stop) {
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this.showResults();
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return;
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}
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this.size += TEST_SIZES[this.mode].step;
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}
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this.runOneBenchmarkTest(view);
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});
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}
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private showResults(): void {
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while (this.resultsTableHeader.lastChild != null)
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this.resultsTableHeader.removeChild(this.resultsTableHeader.lastChild);
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while (this.resultsTableBody.lastChild != null)
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this.resultsTableBody.removeChild(this.resultsTableBody.lastChild);
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const tr = document.createElement('tr');
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for (const headerLabel of DISPLAY_HEADER_LABELS[this.mode]) {
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const th = document.createElement('th');
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th.appendChild(document.createTextNode(headerLabel));
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tr.appendChild(th);
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}
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this.resultsTableHeader.appendChild(tr);
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for (const elapsedTime of this.elapsedTimes) {
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const tr = document.createElement('tr');
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const sizeTH = document.createElement('th');
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const timeTD = document.createElement('td');
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sizeTH.appendChild(document.createTextNode("" + elapsedTime.size));
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const time = this.mode === 'svg' ? elapsedTime.timeInMS : elapsedTime.time;
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timeTD.appendChild(document.createTextNode("" + time));
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sizeTH.scope = 'row';
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tr.appendChild(sizeTH);
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tr.appendChild(timeTD);
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this.resultsTableBody.appendChild(tr);
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}
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window.jQuery(this.resultsModal).modal();
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}
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private saveCSV(): void {
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let output = "Size,Time\n";
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for (const elapsedTime of this.elapsedTimes) {
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const time = this.mode === 'svg' ? elapsedTime.timeInMS : elapsedTime.time;
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output += `${elapsedTime.size},${time}\n`;
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}
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// https://stackoverflow.com/a/30832210
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const file = new Blob([output], {type: 'text/csv'});
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const a = document.createElement('a');
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const url = URL.createObjectURL(file);
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a.href = url;
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a.download = "pathfinder-benchmark-results.csv";
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document.body.appendChild(a);
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a.click();
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window.setTimeout(() => {
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document.body.removeChild(a);
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URL.revokeObjectURL(url);
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}, 0);
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}
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}
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class BenchmarkTestView extends DemoView {
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renderer!: BenchmarkTextRenderer | BenchmarkSVGRenderer;
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readonly appController: BenchmarkAppController;
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renderingPromiseCallback: ((time: number) => void) | null = null;
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get camera(): OrthographicCamera {
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return this.renderer.camera;
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}
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set size(newSize: number) {
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if (this.renderer instanceof BenchmarkTextRenderer) {
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this.renderer.pixelsPerEm = newSize;
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} else if (this.renderer instanceof BenchmarkSVGRenderer) {
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const camera = this.renderer.camera;
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camera.zoomToSize(newSize);
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camera.center();
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}
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}
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constructor(appController: BenchmarkAppController,
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areaLUT: HTMLImageElement,
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gammaLUT: HTMLImageElement,
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commonShaderSource: string,
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shaderSources: ShaderMap<ShaderProgramSource>) {
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super(areaLUT, gammaLUT, commonShaderSource, shaderSources);
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this.appController = appController;
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this.recreateRenderer();
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this.resizeToFit(true);
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}
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recreateRenderer(): void {
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switch (this.appController.mode) {
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case 'svg':
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this.renderer = new BenchmarkSVGRenderer(this);
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break;
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case 'text':
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this.renderer = new BenchmarkTextRenderer(this);
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break;
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}
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}
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initCameraBounds(viewBox: glmatrix.vec4): void {
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if (this.renderer instanceof BenchmarkSVGRenderer)
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this.renderer.initCameraBounds(viewBox);
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}
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protected renderingFinished(): void {
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if (this.renderingPromiseCallback == null)
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return;
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const appController = this.appController;
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let time = this.renderer.lastTimings.rendering * 1000.0;
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if (appController.mode === 'text')
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time /= unwrapNull(appController.textRun).glyphIDs.length;
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this.renderingPromiseCallback(time);
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}
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}
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class BenchmarkTextRenderer extends Renderer {
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renderContext!: BenchmarkTestView;
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camera: OrthographicCamera;
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needsStencil: boolean = false;
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isMulticolor: boolean = false;
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get destFramebuffer(): WebGLFramebuffer | null {
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return null;
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}
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get bgColor(): glmatrix.vec4 {
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return glmatrix.vec4.clone([1.0, 1.0, 1.0, 0.0]);
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}
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get fgColor(): glmatrix.vec4 {
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return glmatrix.vec4.clone([0.0, 0.0, 0.0, 1.0]);
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}
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get destAllocatedSize(): glmatrix.vec2 {
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const canvas = this.renderContext.canvas;
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return glmatrix.vec2.clone([canvas.width, canvas.height]);
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}
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get destUsedSize(): glmatrix.vec2 {
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return this.destAllocatedSize;
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}
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get allowSubpixelAA(): boolean {
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return true;
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}
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get emboldenAmount(): glmatrix.vec2 {
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return this.stemDarkeningAmount;
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}
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get pixelsPerEm(): number {
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return this._pixelsPerEm;
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}
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set pixelsPerEm(newPixelsPerEm: number) {
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this._pixelsPerEm = newPixelsPerEm;
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this.uploadPathTransforms(1);
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this.renderContext.setDirty();
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}
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protected get usedSizeFactor(): glmatrix.vec2 {
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return glmatrix.vec2.clone([1.0, 1.0]);
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}
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protected get worldTransform(): glmatrix.mat4 {
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const canvas = this.renderContext.canvas;
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const transform = glmatrix.mat4.create();
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const translation = this.camera.translation;
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glmatrix.mat4.translate(transform, transform, [-1.0, -1.0, 0.0]);
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glmatrix.mat4.scale(transform, transform, [2.0 / canvas.width, 2.0 / canvas.height, 1.0]);
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glmatrix.mat4.translate(transform, transform, [translation[0], translation[1], 0]);
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glmatrix.mat4.scale(transform, transform, [this.camera.scale, this.camera.scale, 1.0]);
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const pixelsPerUnit = this.pixelsPerUnit;
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glmatrix.mat4.scale(transform, transform, [pixelsPerUnit, pixelsPerUnit, 1.0]);
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return transform;
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}
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protected get objectCount(): number {
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return this.meshBuffers == null ? 0 : this.meshBuffers.length;
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}
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private _pixelsPerEm: number = 32.0;
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private get pixelsPerUnit(): number {
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const font = unwrapNull(this.renderContext.appController.font);
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return this._pixelsPerEm / font.opentypeFont.unitsPerEm;
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}
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private get stemDarkeningAmount(): glmatrix.vec2 {
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return computeStemDarkeningAmount(this._pixelsPerEm, this.pixelsPerUnit);
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}
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constructor(renderContext: BenchmarkTestView) {
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super(renderContext);
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this.camera = new OrthographicCamera(renderContext.canvas, { fixed: true });
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this.camera.onPan = () => renderContext.setDirty();
|
|
this.camera.onZoom = () => renderContext.setDirty();
|
|
}
|
|
|
|
attachMeshes(meshes: PathfinderPackedMeshes[]): void {
|
|
super.attachMeshes(meshes);
|
|
|
|
this.uploadPathColors(1);
|
|
this.uploadPathTransforms(1);
|
|
}
|
|
|
|
pathCountForObject(objectIndex: number): number {
|
|
return STRING.length;
|
|
}
|
|
|
|
pathBoundingRects(objectIndex: number): Float32Array {
|
|
const appController = this.renderContext.appController;
|
|
const font = unwrapNull(appController.font);
|
|
|
|
const boundingRects = new Float32Array((STRING.length + 1) * 4);
|
|
|
|
for (let glyphIndex = 0; glyphIndex < STRING.length; glyphIndex++) {
|
|
const glyphID = unwrapNull(appController.textRun).glyphIDs[glyphIndex];
|
|
|
|
const metrics = font.metricsForGlyph(glyphID);
|
|
if (metrics == null)
|
|
continue;
|
|
|
|
boundingRects[(glyphIndex + 1) * 4 + 0] = metrics.xMin;
|
|
boundingRects[(glyphIndex + 1) * 4 + 1] = metrics.yMin;
|
|
boundingRects[(glyphIndex + 1) * 4 + 2] = metrics.xMax;
|
|
boundingRects[(glyphIndex + 1) * 4 + 3] = metrics.yMax;
|
|
}
|
|
|
|
return boundingRects;
|
|
}
|
|
|
|
setHintsUniform(uniforms: UniformMap): void {
|
|
this.renderContext.gl.uniform4f(uniforms.uHints, 0, 0, 0, 0);
|
|
}
|
|
|
|
pathTransformsForObject(objectIndex: number): PathTransformBuffers<Float32Array> {
|
|
const appController = this.renderContext.appController;
|
|
const canvas = this.renderContext.canvas;
|
|
const font = unwrapNull(appController.font);
|
|
|
|
const pathTransforms = this.createPathTransformBuffers(STRING.length);
|
|
|
|
let currentX = 0, currentY = 0;
|
|
const availableWidth = canvas.width / this.pixelsPerUnit;
|
|
const lineHeight = font.opentypeFont.lineHeight();
|
|
|
|
for (let glyphIndex = 0; glyphIndex < STRING.length; glyphIndex++) {
|
|
const glyphID = unwrapNull(appController.textRun).glyphIDs[glyphIndex];
|
|
pathTransforms.st.set([1, 1, currentX, currentY], (glyphIndex + 1) * 4);
|
|
|
|
currentX += font.opentypeFont.glyphs.get(glyphID).advanceWidth;
|
|
if (currentX > availableWidth) {
|
|
currentX = 0;
|
|
currentY += lineHeight;
|
|
}
|
|
}
|
|
|
|
return pathTransforms;
|
|
}
|
|
|
|
protected createAAStrategy(aaType: AntialiasingStrategyName,
|
|
aaLevel: number,
|
|
subpixelAA: SubpixelAAType):
|
|
AntialiasingStrategy {
|
|
return new (ANTIALIASING_STRATEGIES[aaType])(aaLevel, subpixelAA);
|
|
}
|
|
|
|
protected compositeIfNecessary(): void {}
|
|
|
|
protected updateTimings(timings: Timings): void {
|
|
// TODO(pcwalton)
|
|
}
|
|
|
|
protected pathColorsForObject(objectIndex: number): Uint8Array {
|
|
const pathColors = new Uint8Array(4 * (STRING.length + 1));
|
|
for (let pathIndex = 0; pathIndex < STRING.length; pathIndex++)
|
|
pathColors.set(TEXT_COLOR, (pathIndex + 1) * 4);
|
|
return pathColors;
|
|
}
|
|
|
|
protected directCurveProgramName(): keyof ShaderMap<void> {
|
|
return 'directCurve';
|
|
}
|
|
|
|
protected directInteriorProgramName(): keyof ShaderMap<void> {
|
|
return 'directInterior';
|
|
}
|
|
}
|
|
|
|
class BenchmarkSVGRenderer extends SVGRenderer {
|
|
renderContext!: BenchmarkTestView;
|
|
|
|
protected get loader(): SVGLoader {
|
|
return this.renderContext.appController.svgLoader;
|
|
}
|
|
|
|
protected get canvas(): HTMLCanvasElement {
|
|
return this.renderContext.canvas;
|
|
}
|
|
|
|
constructor(renderContext: BenchmarkTestView) {
|
|
super(renderContext, {sizeToFit: false});
|
|
}
|
|
}
|
|
|
|
function computeMedian(values: number[]): number | null {
|
|
if (values.length === 0)
|
|
return null;
|
|
const mid = values.length / 2;
|
|
if (values.length % 2 === 1)
|
|
return values[Math.floor(mid)];
|
|
return lerp(values[mid - 1], values[mid], 0.5);
|
|
}
|
|
|
|
class ElapsedTime {
|
|
readonly size: number;
|
|
readonly times: number[];
|
|
|
|
constructor(size: number) {
|
|
this.size = size;
|
|
this.times = [];
|
|
}
|
|
|
|
get time(): number {
|
|
const median = computeMedian(this.times);
|
|
return median == null ? 0.0 : median;
|
|
}
|
|
|
|
get timeInMS(): number {
|
|
return this.time / 1000.0;
|
|
}
|
|
}
|
|
|
|
function main() {
|
|
const controller = new BenchmarkAppController;
|
|
window.addEventListener('load', () => controller.start(), false);
|
|
}
|
|
|
|
main();
|