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| 1 <!DOCTYPE html> |
| 2 <head> |
| 3 <!-- |
| 4 Copyright (C) 2007 Apple Inc. All rights reserved. |
| 5 |
| 6 Redistribution and use in source and binary forms, with or without |
| 7 modification, are permitted provided that the following conditions |
| 8 are met: |
| 9 1. Redistributions of source code must retain the above copyright |
| 10 notice, this list of conditions and the following disclaimer. |
| 11 2. Redistributions in binary form must reproduce the above copyright |
| 12 notice, this list of conditions and the following disclaimer in the |
| 13 documentation and/or other materials provided with the distribution. |
| 14 |
| 15 THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY |
| 16 EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| 17 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| 18 PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR |
| 19 CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, |
| 20 EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, |
| 21 PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR |
| 22 PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY |
| 23 OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 24 (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 25 OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 26 --> |
| 27 |
| 28 <title>SunSpider string-base64</title> |
| 29 <link rel="stylesheet" href="sunspider.css"> |
| 30 </head> |
| 31 |
| 32 <body> |
| 33 <h3>string-base64</h3> |
| 34 <div id="console"> |
| 35 </div> |
| 36 <script src="sunspider-record-result.js"></script> |
| 37 <script> |
| 38 |
| 39 var _sunSpiderStartDate = new Date(); |
| 40 |
| 41 /* ***** BEGIN LICENSE BLOCK ***** |
| 42 * Version: MPL 1.1/GPL 2.0/LGPL 2.1 |
| 43 * |
| 44 * The contents of this file are subject to the Mozilla Public License Version |
| 45 * 1.1 (the "License"); you may not use this file except in compliance with |
| 46 * the License. You may obtain a copy of the License at |
| 47 * http://www.mozilla.org/MPL/ |
| 48 * |
| 49 * Software distributed under the License is distributed on an "AS IS" basis, |
| 50 * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License |
| 51 * for the specific language governing rights and limitations under the |
| 52 * License. |
| 53 * |
| 54 * The Original Code is Mozilla XML-RPC Client component. |
| 55 * |
| 56 * The Initial Developer of the Original Code is |
| 57 * Digital Creations 2, Inc. |
| 58 * Portions created by the Initial Developer are Copyright (C) 2000 |
| 59 * the Initial Developer. All Rights Reserved. |
| 60 * |
| 61 * Contributor(s): |
| 62 * Martijn Pieters <mj@digicool.com> (original author) |
| 63 * Samuel Sieb <samuel@sieb.net> |
| 64 * |
| 65 * Alternatively, the contents of this file may be used under the terms of |
| 66 * either the GNU General Public License Version 2 or later (the "GPL"), or |
| 67 * the GNU Lesser General Public License Version 2.1 or later (the "LGPL"), |
| 68 * in which case the provisions of the GPL or the LGPL are applicable instead |
| 69 * of those above. If you wish to allow use of your version of this file only |
| 70 * under the terms of either the GPL or the LGPL, and not to allow others to |
| 71 * use your version of this file under the terms of the MPL, indicate your |
| 72 * decision by deleting the provisions above and replace them with the notice |
| 73 * and other provisions required by the GPL or the LGPL. If you do not delete |
| 74 * the provisions above, a recipient may use your version of this file under |
| 75 * the terms of any one of the MPL, the GPL or the LGPL. |
| 76 * |
| 77 * ***** END LICENSE BLOCK ***** */ |
| 78 |
| 79 // From: http://lxr.mozilla.org/mozilla/source/extensions/xml-rpc/src/nsXmlRpcCl
ient.js#956 |
| 80 |
| 81 /* Convert data (an array of integers) to a Base64 string. */ |
| 82 var toBase64Table = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456
789+/'; |
| 83 var base64Pad = '='; |
| 84 |
| 85 function toBase64(data) { |
| 86 var result = ''; |
| 87 var length = data.length; |
| 88 var i; |
| 89 // Convert every three bytes to 4 ascii characters. |
| 90 for (i = 0; i < (length - 2); i += 3) { |
| 91 result += toBase64Table[data[i] >> 2]; |
| 92 result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)]; |
| 93 result += toBase64Table[((data[i+1] & 0x0f) << 2) + (data[i+2] >> 6)]; |
| 94 result += toBase64Table[data[i+2] & 0x3f]; |
| 95 } |
| 96 |
| 97 // Convert the remaining 1 or 2 bytes, pad out to 4 characters. |
| 98 if (length%3) { |
| 99 i = length - (length%3); |
| 100 result += toBase64Table[data[i] >> 2]; |
| 101 if ((length%3) == 2) { |
| 102 result += toBase64Table[((data[i] & 0x03) << 4) + (data[i+1] >> 4)]; |
| 103 result += toBase64Table[(data[i+1] & 0x0f) << 2]; |
| 104 result += base64Pad; |
| 105 } else { |
| 106 result += toBase64Table[(data[i] & 0x03) << 4]; |
| 107 result += base64Pad + base64Pad; |
| 108 } |
| 109 } |
| 110 |
| 111 return result; |
| 112 } |
| 113 |
| 114 /* Convert Base64 data to a string */ |
| 115 var toBinaryTable = [ |
| 116 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, |
| 117 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,-1, |
| 118 -1,-1,-1,-1, -1,-1,-1,-1, -1,-1,-1,62, -1,-1,-1,63, |
| 119 52,53,54,55, 56,57,58,59, 60,61,-1,-1, -1, 0,-1,-1, |
| 120 -1, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9,10, 11,12,13,14, |
| 121 15,16,17,18, 19,20,21,22, 23,24,25,-1, -1,-1,-1,-1, |
| 122 -1,26,27,28, 29,30,31,32, 33,34,35,36, 37,38,39,40, |
| 123 41,42,43,44, 45,46,47,48, 49,50,51,-1, -1,-1,-1,-1 |
| 124 ]; |
| 125 |
| 126 function base64ToString(data) { |
| 127 var result = ''; |
| 128 var leftbits = 0; // number of bits decoded, but yet to be appended |
| 129 var leftdata = 0; // bits decoded, but yet to be appended |
| 130 |
| 131 // Convert one by one. |
| 132 for (var i = 0; i < data.length; i++) { |
| 133 var c = toBinaryTable[data.charCodeAt(i) & 0x7f]; |
| 134 var padding = (data[i] == base64Pad); |
| 135 // Skip illegal characters and whitespace |
| 136 if (c == -1) continue; |
| 137 |
| 138 // Collect data into leftdata, update bitcount |
| 139 leftdata = (leftdata << 6) | c; |
| 140 leftbits += 6; |
| 141 |
| 142 // If we have 8 or more bits, append 8 bits to the result |
| 143 if (leftbits >= 8) { |
| 144 leftbits -= 8; |
| 145 // Append if not padding. |
| 146 if (!padding) |
| 147 result += String.fromCharCode((leftdata >> leftbits) & 0xff); |
| 148 leftdata &= (1 << leftbits) - 1; |
| 149 } |
| 150 } |
| 151 |
| 152 // If there are any bits left, the base64 string was corrupted |
| 153 if (leftbits) |
| 154 throw Components.Exception('Corrupted base64 string'); |
| 155 |
| 156 return result; |
| 157 } |
| 158 |
| 159 var str = ""; |
| 160 |
| 161 for ( var i = 0; i < 8192; i++ ) |
| 162 str += String.fromCharCode( (25 * Math.random()) + 97 ); |
| 163 |
| 164 for ( var i = 8192; i <= 16384; i *= 2 ) { |
| 165 |
| 166 var base64; |
| 167 |
| 168 base64 = toBase64(str); |
| 169 base64ToString(base64); |
| 170 |
| 171 // Double the string |
| 172 str += str; |
| 173 } |
| 174 |
| 175 toBinaryTable = null; |
| 176 |
| 177 |
| 178 var _sunSpiderInterval = new Date() - _sunSpiderStartDate; |
| 179 |
| 180 record(_sunSpiderInterval); |
| 181 </script> |
| 182 |
| 183 |
| 184 </body> |
| 185 </html> |
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Chromium Code Reviews
Issue 42549:
Add a copy of SunSpider 0.9 for performance testing.... (Closed)
Base URL: svn://chrome-svn/chrome/trunk/src/