1 | <?php
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2 | /*******************************************************************************
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3 | * Utility to generate font definition files *
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4 | * *
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5 | * Version: 1.2 *
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6 | * Date: 2011-06-18 *
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7 | * Author: Olivier PLATHEY *
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8 | *******************************************************************************/
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9 |
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10 | require('ttfparser.php');
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11 |
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12 | function Message($txt, $severity='')
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13 | {
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14 | if(PHP_SAPI=='cli')
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15 | {
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16 | if($severity)
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17 | echo "$severity: ";
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18 | echo "$txt\n";
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19 | }
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20 | else
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21 | {
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22 | if($severity)
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23 | echo "<b>$severity</b>: ";
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24 | echo "$txt<br>";
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25 | }
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26 | }
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27 |
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28 | function Notice($txt)
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29 | {
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30 | Message($txt, 'Notice');
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31 | }
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32 |
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33 | function Warning($txt)
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34 | {
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35 | Message($txt, 'Warning');
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36 | }
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37 |
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38 | function Error($txt)
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39 | {
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40 | Message($txt, 'Error');
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41 | exit;
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42 | }
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43 |
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44 | function LoadMap($enc)
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45 | {
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46 | $file = dirname(__FILE__).'/'.strtolower($enc).'.map';
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47 | $a = file($file);
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48 | if(empty($a))
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49 | Error('Encoding not found: '.$enc);
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50 | $map = array_fill(0, 256, array('uv'=>-1, 'name'=>'.notdef'));
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51 | foreach($a as $line)
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52 | {
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53 | $e = explode(' ', rtrim($line));
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54 | $c = hexdec(substr($e[0],1));
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55 | $uv = hexdec(substr($e[1],2));
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56 | $name = $e[2];
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57 | $map[$c] = array('uv'=>$uv, 'name'=>$name);
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58 | }
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59 | return $map;
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60 | }
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61 |
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62 | function GetInfoFromTrueType($file, $embed, $map)
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63 | {
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64 | // Return informations from a TrueType font
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65 | $ttf = new TTFParser();
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66 | $ttf->Parse($file);
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67 | if($embed)
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68 | {
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69 | if(!$ttf->Embeddable)
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70 | Error('Font license does not allow embedding');
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71 | $info['Data'] = file_get_contents($file);
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72 | $info['OriginalSize'] = filesize($file);
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73 | }
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74 | $k = 1000/$ttf->unitsPerEm;
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75 | $info['FontName'] = $ttf->postScriptName;
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76 | $info['Bold'] = $ttf->Bold;
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77 | $info['ItalicAngle'] = $ttf->italicAngle;
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78 | $info['IsFixedPitch'] = $ttf->isFixedPitch;
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79 | $info['Ascender'] = round($k*$ttf->typoAscender);
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80 | $info['Descender'] = round($k*$ttf->typoDescender);
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81 | $info['UnderlineThickness'] = round($k*$ttf->underlineThickness);
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82 | $info['UnderlinePosition'] = round($k*$ttf->underlinePosition);
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83 | $info['FontBBox'] = array(round($k*$ttf->xMin), round($k*$ttf->yMin), round($k*$ttf->xMax), round($k*$ttf->yMax));
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84 | $info['CapHeight'] = round($k*$ttf->capHeight);
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85 | $info['MissingWidth'] = round($k*$ttf->widths[0]);
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86 | $widths = array_fill(0, 256, $info['MissingWidth']);
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87 | for($c=0;$c<=255;$c++)
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88 | {
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89 | if($map[$c]['name']!='.notdef')
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90 | {
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91 | $uv = $map[$c]['uv'];
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92 | if(isset($ttf->chars[$uv]))
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93 | {
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94 | $w = $ttf->widths[$ttf->chars[$uv]];
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95 | $widths[$c] = round($k*$w);
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96 | }
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97 | else
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98 | Warning('Character '.$map[$c]['name'].' is missing');
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99 | }
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100 | }
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101 | $info['Widths'] = $widths;
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102 | return $info;
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103 | }
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104 |
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105 | function GetInfoFromType1($file, $embed, $map)
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106 | {
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107 | // Return informations from a Type1 font
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108 | if($embed)
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109 | {
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110 | $f = fopen($file, 'rb');
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111 | if(!$f)
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112 | Error('Can\'t open font file');
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113 | // Read first segment
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114 | $a = unpack('Cmarker/Ctype/Vsize', fread($f,6));
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115 | if($a['marker']!=128)
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116 | Error('Font file is not a valid binary Type1');
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117 | $size1 = $a['size'];
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118 | $data = fread($f, $size1);
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119 | // Read second segment
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120 | $a = unpack('Cmarker/Ctype/Vsize', fread($f,6));
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121 | if($a['marker']!=128)
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122 | Error('Font file is not a valid binary Type1');
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123 | $size2 = $a['size'];
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124 | $data .= fread($f, $size2);
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125 | fclose($f);
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126 | $info['Data'] = $data;
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127 | $info['Size1'] = $size1;
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128 | $info['Size2'] = $size2;
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129 | }
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130 |
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131 | $afm = substr($file, 0, -3).'afm';
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132 | if(!file_exists($afm))
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133 | Error('AFM font file not found: '.$afm);
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134 | $a = file($afm);
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135 | if(empty($a))
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136 | Error('AFM file empty or not readable');
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137 | foreach($a as $line)
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138 | {
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139 | $e = explode(' ', rtrim($line));
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140 | if(count($e)<2)
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141 | continue;
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142 | $entry = $e[0];
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143 | if($entry=='C')
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144 | {
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145 | $w = $e[4];
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146 | $name = $e[7];
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147 | $cw[$name] = $w;
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148 | }
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149 | elseif($entry=='FontName')
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150 | $info['FontName'] = $e[1];
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151 | elseif($entry=='Weight')
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152 | $info['Weight'] = $e[1];
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153 | elseif($entry=='ItalicAngle')
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154 | $info['ItalicAngle'] = (int)$e[1];
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155 | elseif($entry=='Ascender')
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156 | $info['Ascender'] = (int)$e[1];
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157 | elseif($entry=='Descender')
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158 | $info['Descender'] = (int)$e[1];
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159 | elseif($entry=='UnderlineThickness')
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160 | $info['UnderlineThickness'] = (int)$e[1];
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161 | elseif($entry=='UnderlinePosition')
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162 | $info['UnderlinePosition'] = (int)$e[1];
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163 | elseif($entry=='IsFixedPitch')
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164 | $info['IsFixedPitch'] = ($e[1]=='true');
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165 | elseif($entry=='FontBBox')
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166 | $info['FontBBox'] = array((int)$e[1], (int)$e[2], (int)$e[3], (int)$e[4]);
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167 | elseif($entry=='CapHeight')
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168 | $info['CapHeight'] = (int)$e[1];
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169 | elseif($entry=='StdVW')
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170 | $info['StdVW'] = (int)$e[1];
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171 | }
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172 |
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173 | if(!isset($info['FontName']))
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174 | Error('FontName missing in AFM file');
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175 | $info['Bold'] = isset($info['Weight']) && preg_match('/bold|black/i', $info['Weight']);
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176 | if(isset($cw['.notdef']))
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177 | $info['MissingWidth'] = $cw['.notdef'];
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178 | else
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179 | $info['MissingWidth'] = 0;
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180 | $widths = array_fill(0, 256, $info['MissingWidth']);
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181 | for($c=0;$c<=255;$c++)
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182 | {
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183 | $name = $map[$c]['name'];
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184 | if($name!='.notdef')
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185 | {
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186 | if(isset($cw[$name]))
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187 | $widths[$c] = $cw[$name];
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188 | else
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189 | Warning('Character '.$name.' is missing');
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190 | }
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191 | }
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192 | $info['Widths'] = $widths;
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193 | return $info;
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194 | }
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195 |
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196 | function MakeFontDescriptor($info)
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197 | {
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198 | // Ascent
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199 | $fd = "array('Ascent'=>".$info['Ascender'];
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200 | // Descent
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201 | $fd .= ",'Descent'=>".$info['Descender'];
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202 | // CapHeight
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203 | if(!empty($info['CapHeight']))
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204 | $fd .= ",'CapHeight'=>".$info['CapHeight'];
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205 | else
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206 | $fd .= ",'CapHeight'=>".$info['Ascender'];
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207 | // Flags
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208 | $flags = 0;
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209 | if($info['IsFixedPitch'])
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210 | $flags += 1<<0;
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211 | $flags += 1<<5;
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212 | if($info['ItalicAngle']!=0)
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213 | $flags += 1<<6;
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214 | $fd .= ",'Flags'=>".$flags;
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215 | // FontBBox
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216 | $fbb = $info['FontBBox'];
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217 | $fd .= ",'FontBBox'=>'[".$fbb[0].' '.$fbb[1].' '.$fbb[2].' '.$fbb[3]."]'";
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218 | // ItalicAngle
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219 | $fd .= ",'ItalicAngle'=>".$info['ItalicAngle'];
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220 | // StemV
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221 | if(isset($info['StdVW']))
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222 | $stemv = $info['StdVW'];
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223 | elseif($info['Bold'])
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224 | $stemv = 120;
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225 | else
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226 | $stemv = 70;
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227 | $fd .= ",'StemV'=>".$stemv;
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228 | // MissingWidth
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229 | $fd .= ",'MissingWidth'=>".$info['MissingWidth'].')';
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230 | return $fd;
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231 | }
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232 |
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233 | function MakeWidthArray($widths)
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234 | {
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235 | $s = "array(\n\t";
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236 | for($c=0;$c<=255;$c++)
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237 | {
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238 | if(chr($c)=="'")
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239 | $s .= "'\\''";
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240 | elseif(chr($c)=="\\")
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241 | $s .= "'\\\\'";
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242 | elseif($c>=32 && $c<=126)
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243 | $s .= "'".chr($c)."'";
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244 | else
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245 | $s .= "chr($c)";
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246 | $s .= '=>'.$widths[$c];
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247 | if($c<255)
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248 | $s .= ',';
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249 | if(($c+1)%22==0)
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250 | $s .= "\n\t";
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251 | }
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252 | $s .= ')';
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253 | return $s;
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254 | }
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255 |
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256 | function MakeFontEncoding($map)
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257 | {
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258 | // Build differences from reference encoding
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259 | $ref = LoadMap('cp1252');
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260 | $s = '';
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261 | $last = 0;
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262 | for($c=32;$c<=255;$c++)
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263 | {
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264 | if($map[$c]['name']!=$ref[$c]['name'])
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265 | {
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266 | if($c!=$last+1)
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267 | $s .= $c.' ';
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268 | $last = $c;
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269 | $s .= '/'.$map[$c]['name'].' ';
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270 | }
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271 | }
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272 | return rtrim($s);
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273 | }
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274 |
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275 | function SaveToFile($file, $s, $mode)
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276 | {
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277 | $f = fopen($file, 'w'.$mode);
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278 | if(!$f)
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279 | Error('Can\'t write to file '.$file);
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280 | fwrite($f, $s, strlen($s));
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281 | fclose($f);
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282 | }
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283 |
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284 | function MakeDefinitionFile($file, $type, $enc, $embed, $map, $info)
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285 | {
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286 | $s = "<?php\n";
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287 | $s .= '$type = \''.$type."';\n";
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288 | $s .= '$name = \''.$info['FontName']."';\n";
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289 | $s .= '$desc = '.MakeFontDescriptor($info).";\n";
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290 | $s .= '$up = '.$info['UnderlinePosition'].";\n";
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291 | $s .= '$ut = '.$info['UnderlineThickness'].";\n";
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292 | $s .= '$cw = '.MakeWidthArray($info['Widths']).";\n";
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293 | $s .= '$enc = \''.$enc."';\n";
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294 | $diff = MakeFontEncoding($map);
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295 | if($diff)
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296 | $s .= '$diff = \''.$diff."';\n";
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297 | if($embed)
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298 | {
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299 | $s .= '$file = \''.$info['File']."';\n";
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300 | if($type=='Type1')
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301 | {
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302 | $s .= '$size1 = '.$info['Size1'].";\n";
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303 | $s .= '$size2 = '.$info['Size2'].";\n";
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304 | }
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305 | else
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306 | $s .= '$originalsize = '.$info['OriginalSize'].";\n";
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307 | }
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308 | $s .= "?>\n";
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309 | SaveToFile($file, $s, 't');
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310 | }
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311 |
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312 | function MakeFont($fontfile, $enc='cp1252', $embed=true)
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313 | {
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314 | // Generate a font definition file
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315 | if(get_magic_quotes_runtime())
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316 | @set_magic_quotes_runtime(0);
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317 | ini_set('auto_detect_line_endings', '1');
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318 |
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319 | if(!file_exists($fontfile))
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320 | Error('Font file not found: '.$fontfile);
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321 | $ext = strtolower(substr($fontfile,-3));
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322 | if($ext=='ttf' || $ext=='otf')
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323 | $type = 'TrueType';
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324 | elseif($ext=='pfb')
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325 | $type = 'Type1';
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326 | else
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327 | Error('Unrecognized font file extension: '.$ext);
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328 |
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329 | $map = LoadMap($enc);
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330 |
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331 | if($type=='TrueType')
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332 | $info = GetInfoFromTrueType($fontfile, $embed, $map);
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333 | else
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334 | $info = GetInfoFromType1($fontfile, $embed, $map);
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335 |
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336 | $basename = substr(basename($fontfile), 0, -4);
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337 | if($embed)
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338 | {
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339 | if(function_exists('gzcompress'))
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340 | {
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341 | $file = $basename.'.z';
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342 | SaveToFile($file, gzcompress($info['Data']), 'b');
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343 | $info['File'] = $file;
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344 | Message('Font file compressed: '.$file);
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345 | }
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346 | else
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347 | {
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348 | $info['File'] = basename($fontfile);
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349 | Notice('Font file could not be compressed (zlib extension not available)');
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350 | }
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351 | }
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352 |
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353 | MakeDefinitionFile($basename.'.php', $type, $enc, $embed, $map, $info);
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354 | Message('Font definition file generated: '.$basename.'.php');
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355 | }
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356 |
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357 | if(PHP_SAPI=='cli')
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358 | {
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359 | // Command-line interface
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360 | if($argc==1)
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361 | die("Usage: php makefont.php fontfile [enc] [embed]\n");
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362 | $fontfile = $argv[1];
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363 | if($argc>=3)
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364 | $enc = $argv[2];
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365 | else
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366 | $enc = 'cp1252';
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367 | if($argc>=4)
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368 | $embed = ($argv[3]=='true' || $argv[3]=='1');
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369 | else
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370 | $embed = true;
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371 | MakeFont($fontfile, $enc, $embed);
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372 | }
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373 | ?>
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