| // Copyright 2011 Google Inc. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| package com.google.typography.font.compression; |
| |
| import com.google.common.collect.Lists; |
| import com.google.common.io.Files; |
| import com.google.typography.font.sfntly.Font; |
| import com.google.typography.font.sfntly.FontFactory; |
| |
| import java.io.File; |
| import java.io.IOException; |
| import java.io.PrintWriter; |
| import java.util.List; |
| |
| /** |
| * A command-line tool for running different experimental compression code over |
| * a corpus of fonts, and gathering statistics, particularly compression |
| * efficiency. |
| * |
| * This is not intended to be production code. |
| * |
| * @author Raph Levien |
| */ |
| public class CompressionRunner { |
| |
| public static void main(String[] args) throws IOException { |
| boolean generateOutput = false; |
| List<String> descs = Lists.newArrayList(); |
| String baseline = "gzip"; |
| |
| List<String> filenames = Lists.newArrayList(); |
| for (int i = 0; i < args.length; i++) { |
| if (args[i].charAt(0) == '-') { |
| if (args[i].equals("-o")) { |
| generateOutput = true; |
| } else if (args[i].equals("-x")) { |
| descs.add(args[i + 1]); |
| i++; |
| } else if (args[i].equals("-b")) { |
| baseline = args[i + 1]; |
| i++; |
| } |
| } else { |
| filenames.add(args[i]); |
| } |
| } |
| |
| // String baseline = "glyf/triplet,code,push:lzma"; |
| // String baseline = "glyf/cbbox,triplet,code,push:hdmx:lzma"; |
| // descs.add("woff2"); |
| if (descs.isEmpty()) { |
| descs.add("glyf/cbbox,triplet,code,reslice:woff2/lzma"); |
| } |
| run(filenames, baseline, descs, generateOutput); |
| } |
| |
| private static void run(List<String> filenames, String baseline, List<String> descs, |
| boolean generateOutput) throws IOException { |
| PrintWriter o = new PrintWriter(System.out); |
| List<StatsCollector> stats = Lists.newArrayList(); |
| for (int i = 0; i < descs.size(); i++) { |
| stats.add(new StatsCollector()); |
| } |
| FontFactory fontFactory = FontFactory.getInstance(); |
| o.println("<html>"); |
| for (String filename : filenames) { |
| byte[] bytes = Files.toByteArray(new File(filename)); |
| Font font = fontFactory.loadFonts(bytes)[0]; |
| byte[] baselineResult = Experiment.run(font, baseline); |
| o.printf("<!-- %s: baseline %d bytes", new File(filename).getName(), baselineResult.length); |
| for (int i = 0; i < descs.size(); i++) { |
| byte[] expResult = Experiment.run(font, descs.get(i)); |
| if (generateOutput) { |
| String newFilename = filename; |
| if (newFilename.endsWith(".ttf")) { |
| newFilename = newFilename.substring(0, newFilename.length() - 4); |
| } |
| newFilename += ".woff2"; |
| Files.write(expResult, new File(newFilename)); |
| } |
| double percent = 100. * expResult.length / baselineResult.length; |
| stats.get(i).addStat(percent); |
| o.printf(", %c %.2f%%", 'A' + i, percent); |
| } |
| o.printf(" -->\n"); |
| } |
| stats.get(0).chartHeader(o, descs.size()); |
| for (int i = 0; i < descs.size(); i++) { |
| stats.get(i).chartData(o, i + 1); |
| } |
| stats.get(0).chartEnd(o); |
| o.printf("<p>baseline: %s</p>\n", baseline); |
| for (int i = 0; i < descs.size(); i++) { |
| StatsCollector sc = stats.get(i); |
| o.printf("<p>%c: %s: median %f, mean %f</p>\n", |
| 'A' + i, descs.get(i), sc.median(), sc.mean()); |
| } |
| stats.get(0).chartFooter(o); |
| o.close(); |
| } |
| } |