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1 | <?php\r |
2 | /*\r | |
3 | * PHP QR Code encoder\r | |
4 | *\r | |
5 | * Input encoding class\r | |
6 | *\r | |
7 | * Based on libqrencode C library distributed under LGPL 2.1\r | |
8 | * Copyright (C) 2006, 2007, 2008, 2009 Kentaro Fukuchi <fukuchi@megaui.net>\r | |
9 | *\r | |
10 | * PHP QR Code is distributed under LGPL 3\r | |
11 | * Copyright (C) 2010 Dominik Dzienia <deltalab at poczta dot fm>\r | |
12 | *\r | |
13 | * This library is free software; you can redistribute it and/or\r | |
14 | * modify it under the terms of the GNU Lesser General Public\r | |
15 | * License as published by the Free Software Foundation; either\r | |
16 | * version 3 of the License, or any later version.\r | |
17 | *\r | |
18 | * This library is distributed in the hope that it will be useful,\r | |
19 | * but WITHOUT ANY WARRANTY; without even the implied warranty of\r | |
20 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU\r | |
21 | * Lesser General Public License for more details.\r | |
22 | *\r | |
23 | * You should have received a copy of the GNU Lesser General Public\r | |
24 | * License along with this library; if not, write to the Free Software\r | |
25 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA\r | |
26 | */\r | |
27 | \r | |
28 | define('STRUCTURE_HEADER_BITS', 20);\r | |
29 | define('MAX_STRUCTURED_SYMBOLS', 16);\r | |
30 | \r | |
31 | class QRinputItem {\r | |
32 | \r | |
33 | public $mode;\r | |
34 | public $size;\r | |
35 | public $data;\r | |
36 | public $bstream;\r | |
37 | \r | |
38 | public function __construct($mode, $size, $data, $bstream = null) \r | |
39 | {\r | |
40 | $setData = array_slice($data, 0, $size);\r | |
41 | \r | |
42 | if (count($setData) < $size) {\r | |
43 | $setData = array_merge($setData, array_fill(0,$size-count($setData),0));\r | |
44 | }\r | |
45 | \r | |
46 | if(!QRinput::check($mode, $size, $setData)) {\r | |
47 | throw new Exception('Error m:'.$mode.',s:'.$size.',d:'.join(',',$setData));\r | |
48 | return null;\r | |
49 | }\r | |
50 | \r | |
51 | $this->mode = $mode;\r | |
52 | $this->size = $size;\r | |
53 | $this->data = $setData;\r | |
54 | $this->bstream = $bstream;\r | |
55 | }\r | |
56 | \r | |
57 | //----------------------------------------------------------------------\r | |
58 | public function encodeModeNum($version)\r | |
59 | {\r | |
60 | try {\r | |
61 | \r | |
62 | $words = (int)($this->size / 3);\r | |
63 | $bs = new QRbitstream();\r | |
64 | \r | |
65 | $val = 0x1;\r | |
66 | $bs->appendNum(4, $val);\r | |
67 | $bs->appendNum(QRspec::lengthIndicator(QR_MODE_NUM, $version), $this->size);\r | |
68 | \r | |
69 | for($i=0; $i<$words; $i++) {\r | |
70 | $val = (ord($this->data[$i*3 ]) - ord('0')) * 100;\r | |
71 | $val += (ord($this->data[$i*3+1]) - ord('0')) * 10;\r | |
72 | $val += (ord($this->data[$i*3+2]) - ord('0'));\r | |
73 | $bs->appendNum(10, $val);\r | |
74 | }\r | |
75 | \r | |
76 | if($this->size - $words * 3 == 1) {\r | |
77 | $val = ord($this->data[$words*3]) - ord('0');\r | |
78 | $bs->appendNum(4, $val);\r | |
79 | } else if($this->size - $words * 3 == 2) {\r | |
80 | $val = (ord($this->data[$words*3 ]) - ord('0')) * 10;\r | |
81 | $val += (ord($this->data[$words*3+1]) - ord('0'));\r | |
82 | $bs->appendNum(7, $val);\r | |
83 | }\r | |
84 | \r | |
85 | $this->bstream = $bs;\r | |
86 | return 0;\r | |
87 | \r | |
88 | } catch (Exception $e) {\r | |
89 | return -1;\r | |
90 | }\r | |
91 | }\r | |
92 | \r | |
93 | //----------------------------------------------------------------------\r | |
94 | public function encodeModeAn($version)\r | |
95 | {\r | |
96 | try {\r | |
97 | $words = (int)($this->size / 2);\r | |
98 | $bs = new QRbitstream();\r | |
99 | \r | |
100 | $bs->appendNum(4, 0x02);\r | |
101 | $bs->appendNum(QRspec::lengthIndicator(QR_MODE_AN, $version), $this->size);\r | |
102 | \r | |
103 | for($i=0; $i<$words; $i++) {\r | |
104 | $val = (int)QRinput::lookAnTable(ord($this->data[$i*2 ])) * 45;\r | |
105 | $val += (int)QRinput::lookAnTable(ord($this->data[$i*2+1]));\r | |
106 | \r | |
107 | $bs->appendNum(11, $val);\r | |
108 | }\r | |
109 | \r | |
110 | if($this->size & 1) {\r | |
111 | $val = QRinput::lookAnTable(ord($this->data[$words * 2]));\r | |
112 | $bs->appendNum(6, $val);\r | |
113 | }\r | |
114 | \r | |
115 | $this->bstream = $bs;\r | |
116 | return 0;\r | |
117 | \r | |
118 | } catch (Exception $e) {\r | |
119 | return -1;\r | |
120 | }\r | |
121 | }\r | |
122 | \r | |
123 | //----------------------------------------------------------------------\r | |
124 | public function encodeMode8($version)\r | |
125 | {\r | |
126 | try {\r | |
127 | $bs = new QRbitstream();\r | |
128 | \r | |
129 | $bs->appendNum(4, 0x4);\r | |
130 | $bs->appendNum(QRspec::lengthIndicator(QR_MODE_8, $version), $this->size);\r | |
131 | \r | |
132 | for($i=0; $i<$this->size; $i++) {\r | |
133 | $bs->appendNum(8, ord($this->data[$i]));\r | |
134 | }\r | |
135 | \r | |
136 | $this->bstream = $bs;\r | |
137 | return 0;\r | |
138 | \r | |
139 | } catch (Exception $e) {\r | |
140 | return -1;\r | |
141 | }\r | |
142 | }\r | |
143 | \r | |
144 | //----------------------------------------------------------------------\r | |
145 | public function encodeModeKanji($version)\r | |
146 | {\r | |
147 | try {\r | |
148 | \r | |
149 | $bs = new QRbitrtream();\r | |
150 | \r | |
151 | $bs->appendNum(4, 0x8);\r | |
152 | $bs->appendNum(QRspec::lengthIndicator(QR_MODE_KANJI, $version), (int)($this->size / 2));\r | |
153 | \r | |
154 | for($i=0; $i<$this->size; $i+=2) {\r | |
155 | $val = (ord($this->data[$i]) << 8) | ord($this->data[$i+1]);\r | |
156 | if($val <= 0x9ffc) {\r | |
157 | $val -= 0x8140;\r | |
158 | } else {\r | |
159 | $val -= 0xc140;\r | |
160 | }\r | |
161 | \r | |
162 | $h = ($val >> 8) * 0xc0;\r | |
163 | $val = ($val & 0xff) + $h;\r | |
164 | \r | |
165 | $bs->appendNum(13, $val);\r | |
166 | }\r | |
167 | \r | |
168 | $this->bstream = $bs;\r | |
169 | return 0;\r | |
170 | \r | |
171 | } catch (Exception $e) {\r | |
172 | return -1;\r | |
173 | }\r | |
174 | }\r | |
175 | \r | |
176 | //----------------------------------------------------------------------\r | |
177 | public function encodeModeStructure()\r | |
178 | {\r | |
179 | try {\r | |
180 | $bs = new QRbitstream();\r | |
181 | \r | |
182 | $bs->appendNum(4, 0x03);\r | |
183 | $bs->appendNum(4, ord($this->data[1]) - 1);\r | |
184 | $bs->appendNum(4, ord($this->data[0]) - 1);\r | |
185 | $bs->appendNum(8, ord($this->data[2]));\r | |
186 | \r | |
187 | $this->bstream = $bs;\r | |
188 | return 0;\r | |
189 | \r | |
190 | } catch (Exception $e) {\r | |
191 | return -1;\r | |
192 | }\r | |
193 | }\r | |
194 | \r | |
195 | //----------------------------------------------------------------------\r | |
196 | public function estimateBitStreamSizeOfEntry($version)\r | |
197 | {\r | |
198 | $bits = 0;\r | |
199 | \r | |
200 | if($version == 0) \r | |
201 | $version = 1;\r | |
202 | \r | |
203 | switch($this->mode) {\r | |
204 | case QR_MODE_NUM: $bits = QRinput::estimateBitsModeNum($this->size); break;\r | |
205 | case QR_MODE_AN: $bits = QRinput::estimateBitsModeAn($this->size); break;\r | |
206 | case QR_MODE_8: $bits = QRinput::estimateBitsMode8($this->size); break;\r | |
207 | case QR_MODE_KANJI: $bits = QRinput::estimateBitsModeKanji($this->size);break;\r | |
208 | case QR_MODE_STRUCTURE: return STRUCTURE_HEADER_BITS; \r | |
209 | default:\r | |
210 | return 0;\r | |
211 | }\r | |
212 | \r | |
213 | $l = QRspec::lengthIndicator($this->mode, $version);\r | |
214 | $m = 1 << $l;\r | |
215 | $num = (int)(($this->size + $m - 1) / $m);\r | |
216 | \r | |
217 | $bits += $num * (4 + $l);\r | |
218 | \r | |
219 | return $bits;\r | |
220 | }\r | |
221 | \r | |
222 | //----------------------------------------------------------------------\r | |
223 | public function encodeBitStream($version)\r | |
224 | {\r | |
225 | try {\r | |
226 | \r | |
227 | unset($this->bstream);\r | |
228 | $words = QRspec::maximumWords($this->mode, $version);\r | |
229 | \r | |
230 | if($this->size > $words) {\r | |
231 | \r | |
232 | $st1 = new QRinputItem($this->mode, $words, $this->data);\r | |
233 | $st2 = new QRinputItem($this->mode, $this->size - $words, array_slice($this->data, $words));\r | |
234 | \r | |
235 | $st1->encodeBitStream($version);\r | |
236 | $st2->encodeBitStream($version);\r | |
237 | \r | |
238 | $this->bstream = new QRbitstream();\r | |
239 | $this->bstream->append($st1->bstream);\r | |
240 | $this->bstream->append($st2->bstream);\r | |
241 | \r | |
242 | unset($st1);\r | |
243 | unset($st2);\r | |
244 | \r | |
245 | } else {\r | |
246 | \r | |
247 | $ret = 0;\r | |
248 | \r | |
249 | switch($this->mode) {\r | |
250 | case QR_MODE_NUM: $ret = $this->encodeModeNum($version); break;\r | |
251 | case QR_MODE_AN: $ret = $this->encodeModeAn($version); break;\r | |
252 | case QR_MODE_8: $ret = $this->encodeMode8($version); break;\r | |
253 | case QR_MODE_KANJI: $ret = $this->encodeModeKanji($version);break;\r | |
254 | case QR_MODE_STRUCTURE: $ret = $this->encodeModeStructure(); break;\r | |
255 | \r | |
256 | default:\r | |
257 | break;\r | |
258 | }\r | |
259 | \r | |
260 | if($ret < 0)\r | |
261 | return -1;\r | |
262 | }\r | |
263 | \r | |
264 | return $this->bstream->size();\r | |
265 | \r | |
266 | } catch (Exception $e) {\r | |
267 | return -1;\r | |
268 | }\r | |
269 | }\r | |
270 | };\r | |
271 | \r | |
272 | //##########################################################################\r | |
273 | \r | |
274 | class QRinput {\r | |
275 | \r | |
276 | public $items;\r | |
277 | \r | |
278 | private $version;\r | |
279 | private $level;\r | |
280 | \r | |
281 | //----------------------------------------------------------------------\r | |
282 | public function __construct($version = 0, $level = QR_ECLEVEL_L)\r | |
283 | {\r | |
284 | if ($version < 0 || $version > QRSPEC_VERSION_MAX || $level > QR_ECLEVEL_H) {\r | |
285 | throw new Exception('Invalid version no');\r | |
286 | return NULL;\r | |
287 | }\r | |
288 | \r | |
289 | $this->version = $version;\r | |
290 | $this->level = $level;\r | |
291 | }\r | |
292 | \r | |
293 | //----------------------------------------------------------------------\r | |
294 | public function getVersion()\r | |
295 | {\r | |
296 | return $this->version;\r | |
297 | }\r | |
298 | \r | |
299 | //----------------------------------------------------------------------\r | |
300 | public function setVersion($version)\r | |
301 | {\r | |
302 | if($version < 0 || $version > QRSPEC_VERSION_MAX) {\r | |
303 | throw new Exception('Invalid version no');\r | |
304 | return -1;\r | |
305 | }\r | |
306 | \r | |
307 | $this->version = $version;\r | |
308 | \r | |
309 | return 0;\r | |
310 | }\r | |
311 | \r | |
312 | //----------------------------------------------------------------------\r | |
313 | public function getErrorCorrectionLevel()\r | |
314 | {\r | |
315 | return $this->level;\r | |
316 | }\r | |
317 | \r | |
318 | //----------------------------------------------------------------------\r | |
319 | public function setErrorCorrectionLevel($level)\r | |
320 | {\r | |
321 | if($level > QR_ECLEVEL_H) {\r | |
322 | throw new Exception('Invalid ECLEVEL');\r | |
323 | return -1;\r | |
324 | }\r | |
325 | \r | |
326 | $this->level = $level;\r | |
327 | \r | |
328 | return 0;\r | |
329 | }\r | |
330 | \r | |
331 | //----------------------------------------------------------------------\r | |
332 | public function appendEntry(QRinputItem $entry)\r | |
333 | {\r | |
334 | $this->items[] = $entry;\r | |
335 | }\r | |
336 | \r | |
337 | //----------------------------------------------------------------------\r | |
338 | public function append($mode, $size, $data)\r | |
339 | {\r | |
340 | try {\r | |
341 | $entry = new QRinputItem($mode, $size, $data);\r | |
342 | $this->items[] = $entry;\r | |
343 | return 0;\r | |
344 | } catch (Exception $e) {\r | |
345 | return -1;\r | |
346 | }\r | |
347 | }\r | |
348 | \r | |
349 | //----------------------------------------------------------------------\r | |
350 | \r | |
351 | public function insertStructuredAppendHeader($size, $index, $parity)\r | |
352 | {\r | |
353 | if( $size > MAX_STRUCTURED_SYMBOLS ) {\r | |
354 | throw new Exception('insertStructuredAppendHeader wrong size');\r | |
355 | }\r | |
356 | \r | |
357 | if( $index <= 0 || $index > MAX_STRUCTURED_SYMBOLS ) {\r | |
358 | throw new Exception('insertStructuredAppendHeader wrong index');\r | |
359 | }\r | |
360 | \r | |
361 | $buf = array($size, $index, $parity);\r | |
362 | \r | |
363 | try {\r | |
364 | $entry = new QRinputItem(QR_MODE_STRUCTURE, 3, buf);\r | |
365 | array_unshift($this->items, $entry);\r | |
366 | return 0;\r | |
367 | } catch (Exception $e) {\r | |
368 | return -1;\r | |
369 | }\r | |
370 | }\r | |
371 | \r | |
372 | //----------------------------------------------------------------------\r | |
373 | public function calcParity()\r | |
374 | {\r | |
375 | $parity = 0;\r | |
376 | \r | |
377 | foreach($this->items as $item) {\r | |
378 | if($item->mode != QR_MODE_STRUCTURE) {\r | |
379 | for($i=$item->size-1; $i>=0; $i--) {\r | |
380 | $parity ^= $item->data[$i];\r | |
381 | }\r | |
382 | }\r | |
383 | }\r | |
384 | \r | |
385 | return $parity;\r | |
386 | }\r | |
387 | \r | |
388 | //----------------------------------------------------------------------\r | |
389 | public static function checkModeNum($size, $data)\r | |
390 | {\r | |
391 | for($i=0; $i<$size; $i++) {\r | |
392 | if((ord($data[$i]) < ord('0')) || (ord($data[$i]) > ord('9'))){\r | |
393 | return false;\r | |
394 | }\r | |
395 | }\r | |
396 | \r | |
397 | return true;\r | |
398 | }\r | |
399 | \r | |
400 | //----------------------------------------------------------------------\r | |
401 | public static function estimateBitsModeNum($size)\r | |
402 | {\r | |
403 | $w = (int)$size / 3;\r | |
404 | $bits = $w * 10;\r | |
405 | \r | |
406 | switch($size - $w * 3) {\r | |
407 | case 1:\r | |
408 | $bits += 4;\r | |
409 | break;\r | |
410 | case 2:\r | |
411 | $bits += 7;\r | |
412 | break;\r | |
413 | default:\r | |
414 | break;\r | |
415 | }\r | |
416 | \r | |
417 | return $bits;\r | |
418 | }\r | |
419 | \r | |
420 | //----------------------------------------------------------------------\r | |
421 | public static $anTable = array(\r | |
422 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
423 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
424 | 36, -1, -1, -1, 37, 38, -1, -1, -1, -1, 39, 40, -1, 41, 42, 43,\r | |
425 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 44, -1, -1, -1, -1, -1,\r | |
426 | -1, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24,\r | |
427 | 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, -1, -1, -1, -1, -1,\r | |
428 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,\r | |
429 | -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1\r | |
430 | );\r | |
431 | \r | |
432 | //----------------------------------------------------------------------\r | |
433 | public static function lookAnTable($c)\r | |
434 | {\r | |
435 | return (($c > 127)?-1:self::$anTable[$c]);\r | |
436 | }\r | |
437 | \r | |
438 | //----------------------------------------------------------------------\r | |
439 | public static function checkModeAn($size, $data)\r | |
440 | {\r | |
441 | for($i=0; $i<$size; $i++) {\r | |
442 | if (self::lookAnTable(ord($data[$i])) == -1) {\r | |
443 | return false;\r | |
444 | }\r | |
445 | }\r | |
446 | \r | |
447 | return true;\r | |
448 | }\r | |
449 | \r | |
450 | //----------------------------------------------------------------------\r | |
451 | public static function estimateBitsModeAn($size)\r | |
452 | {\r | |
453 | $w = (int)($size / 2);\r | |
454 | $bits = $w * 11;\r | |
455 | \r | |
456 | if($size & 1) {\r | |
457 | $bits += 6;\r | |
458 | }\r | |
459 | \r | |
460 | return $bits;\r | |
461 | }\r | |
462 | \r | |
463 | //----------------------------------------------------------------------\r | |
464 | public static function estimateBitsMode8($size)\r | |
465 | {\r | |
466 | return $size * 8;\r | |
467 | }\r | |
468 | \r | |
469 | //----------------------------------------------------------------------\r | |
470 | public function estimateBitsModeKanji($size)\r | |
471 | {\r | |
472 | return (int)(($size / 2) * 13);\r | |
473 | }\r | |
474 | \r | |
475 | //----------------------------------------------------------------------\r | |
476 | public static function checkModeKanji($size, $data)\r | |
477 | {\r | |
478 | if($size & 1)\r | |
479 | return false;\r | |
480 | \r | |
481 | for($i=0; $i<$size; $i+=2) {\r | |
482 | $val = (ord($data[$i]) << 8) | ord($data[$i+1]);\r | |
483 | if( $val < 0x8140 \r | |
484 | || ($val > 0x9ffc && $val < 0xe040) \r | |
485 | || $val > 0xebbf) {\r | |
486 | return false;\r | |
487 | }\r | |
488 | }\r | |
489 | \r | |
490 | return true;\r | |
491 | }\r | |
492 | \r | |
493 | /***********************************************************************\r | |
494 | * Validation\r | |
495 | **********************************************************************/\r | |
496 | \r | |
497 | public static function check($mode, $size, $data)\r | |
498 | {\r | |
499 | if($size <= 0) \r | |
500 | return false;\r | |
501 | \r | |
502 | switch($mode) {\r | |
503 | case QR_MODE_NUM: return self::checkModeNum($size, $data); break;\r | |
504 | case QR_MODE_AN: return self::checkModeAn($size, $data); break;\r | |
505 | case QR_MODE_KANJI: return self::checkModeKanji($size, $data); break;\r | |
506 | case QR_MODE_8: return true; break;\r | |
507 | case QR_MODE_STRUCTURE: return true; break;\r | |
508 | \r | |
509 | default:\r | |
510 | break;\r | |
511 | }\r | |
512 | \r | |
513 | return false;\r | |
514 | }\r | |
515 | \r | |
516 | \r | |
517 | //----------------------------------------------------------------------\r | |
518 | public function estimateBitStreamSize($version)\r | |
519 | {\r | |
520 | $bits = 0;\r | |
521 | \r | |
522 | foreach($this->items as $item) {\r | |
523 | $bits += $item->estimateBitStreamSizeOfEntry($version);\r | |
524 | }\r | |
525 | \r | |
526 | return $bits;\r | |
527 | }\r | |
528 | \r | |
529 | //----------------------------------------------------------------------\r | |
530 | public function estimateVersion()\r | |
531 | {\r | |
532 | $version = 0;\r | |
533 | $prev = 0;\r | |
534 | do {\r | |
535 | $prev = $version;\r | |
536 | $bits = $this->estimateBitStreamSize($prev);\r | |
537 | $version = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);\r | |
538 | if ($version < 0) {\r | |
539 | return -1;\r | |
540 | }\r | |
541 | } while ($version > $prev);\r | |
542 | \r | |
543 | return $version;\r | |
544 | }\r | |
545 | \r | |
546 | //----------------------------------------------------------------------\r | |
547 | public static function lengthOfCode($mode, $version, $bits)\r | |
548 | {\r | |
549 | $payload = $bits - 4 - QRspec::lengthIndicator($mode, $version);\r | |
550 | switch($mode) {\r | |
551 | case QR_MODE_NUM:\r | |
552 | $chunks = (int)($payload / 10);\r | |
553 | $remain = $payload - $chunks * 10;\r | |
554 | $size = $chunks * 3;\r | |
555 | if($remain >= 7) {\r | |
556 | $size += 2;\r | |
557 | } else if($remain >= 4) {\r | |
558 | $size += 1;\r | |
559 | }\r | |
560 | break;\r | |
561 | case QR_MODE_AN:\r | |
562 | $chunks = (int)($payload / 11);\r | |
563 | $remain = $payload - $chunks * 11;\r | |
564 | $size = $chunks * 2;\r | |
565 | if($remain >= 6) \r | |
566 | $size++;\r | |
567 | break;\r | |
568 | case QR_MODE_8:\r | |
569 | $size = (int)($payload / 8);\r | |
570 | break;\r | |
571 | case QR_MODE_KANJI:\r | |
572 | $size = (int)(($payload / 13) * 2);\r | |
573 | break;\r | |
574 | case QR_MODE_STRUCTURE:\r | |
575 | $size = (int)($payload / 8);\r | |
576 | break;\r | |
577 | default:\r | |
578 | $size = 0;\r | |
579 | break;\r | |
580 | }\r | |
581 | \r | |
582 | $maxsize = QRspec::maximumWords($mode, $version);\r | |
583 | if($size < 0) $size = 0;\r | |
584 | if($size > $maxsize) $size = $maxsize;\r | |
585 | \r | |
586 | return $size;\r | |
587 | }\r | |
588 | \r | |
589 | //----------------------------------------------------------------------\r | |
590 | public function createBitStream()\r | |
591 | {\r | |
592 | $total = 0;\r | |
593 | \r | |
594 | foreach($this->items as $item) {\r | |
595 | $bits = $item->encodeBitStream($this->version);\r | |
596 | \r | |
597 | if($bits < 0) \r | |
598 | return -1;\r | |
599 | \r | |
600 | $total += $bits;\r | |
601 | }\r | |
602 | \r | |
603 | return $total;\r | |
604 | }\r | |
605 | \r | |
606 | //----------------------------------------------------------------------\r | |
607 | public function convertData()\r | |
608 | {\r | |
609 | $ver = $this->estimateVersion();\r | |
610 | if($ver > $this->getVersion()) {\r | |
611 | $this->setVersion($ver);\r | |
612 | }\r | |
613 | \r | |
614 | for(;;) {\r | |
615 | $bits = $this->createBitStream();\r | |
616 | \r | |
617 | if($bits < 0) \r | |
618 | return -1;\r | |
619 | \r | |
620 | $ver = QRspec::getMinimumVersion((int)(($bits + 7) / 8), $this->level);\r | |
621 | if($ver < 0) {\r | |
622 | throw new Exception('WRONG VERSION');\r | |
623 | return -1;\r | |
624 | } else if($ver > $this->getVersion()) {\r | |
625 | $this->setVersion($ver);\r | |
626 | } else {\r | |
627 | break;\r | |
628 | }\r | |
629 | }\r | |
630 | \r | |
631 | return 0;\r | |
632 | }\r | |
633 | \r | |
634 | //----------------------------------------------------------------------\r | |
635 | public function appendPaddingBit(&$bstream)\r | |
636 | {\r | |
637 | $bits = $bstream->size();\r | |
638 | $maxwords = QRspec::getDataLength($this->version, $this->level);\r | |
639 | $maxbits = $maxwords * 8;\r | |
640 | \r | |
641 | if ($maxbits == $bits) {\r | |
642 | return 0;\r | |
643 | }\r | |
644 | \r | |
645 | if ($maxbits - $bits < 5) {\r | |
646 | return $bstream->appendNum($maxbits - $bits, 0);\r | |
647 | }\r | |
648 | \r | |
649 | $bits += 4;\r | |
650 | $words = (int)(($bits + 7) / 8);\r | |
651 | \r | |
652 | $padding = new QRbitstream();\r | |
653 | $ret = $padding->appendNum($words * 8 - $bits + 4, 0);\r | |
654 | \r | |
655 | if($ret < 0) \r | |
656 | return $ret;\r | |
657 | \r | |
658 | $padlen = $maxwords - $words;\r | |
659 | \r | |
660 | if($padlen > 0) {\r | |
661 | \r | |
662 | $padbuf = array();\r | |
663 | for($i=0; $i<$padlen; $i++) {\r | |
664 | $padbuf[$i] = ($i&1)?0x11:0xec;\r | |
665 | }\r | |
666 | \r | |
667 | $ret = $padding->appendBytes($padlen, $padbuf);\r | |
668 | \r | |
669 | if($ret < 0)\r | |
670 | return $ret;\r | |
671 | \r | |
672 | }\r | |
673 | \r | |
674 | $ret = $bstream->append($padding);\r | |
675 | \r | |
676 | return $ret;\r | |
677 | }\r | |
678 | \r | |
679 | //----------------------------------------------------------------------\r | |
680 | public function mergeBitStream()\r | |
681 | {\r | |
682 | if($this->convertData() < 0) {\r | |
683 | return null;\r | |
684 | }\r | |
685 | \r | |
686 | $bstream = new QRbitstream();\r | |
687 | \r | |
688 | foreach($this->items as $item) {\r | |
689 | $ret = $bstream->append($item->bstream);\r | |
690 | if($ret < 0) {\r | |
691 | return null;\r | |
692 | }\r | |
693 | }\r | |
694 | \r | |
695 | return $bstream;\r | |
696 | }\r | |
697 | \r | |
698 | //----------------------------------------------------------------------\r | |
699 | public function getBitStream()\r | |
700 | {\r | |
701 | \r | |
702 | $bstream = $this->mergeBitStream();\r | |
703 | \r | |
704 | if($bstream == null) {\r | |
705 | return null;\r | |
706 | }\r | |
707 | \r | |
708 | $ret = $this->appendPaddingBit($bstream);\r | |
709 | if($ret < 0) {\r | |
710 | return null;\r | |
711 | }\r | |
712 | \r | |
713 | return $bstream;\r | |
714 | }\r | |
715 | \r | |
716 | //----------------------------------------------------------------------\r | |
717 | public function getByteStream()\r | |
718 | {\r | |
719 | $bstream = $this->getBitStream();\r | |
720 | if($bstream == null) {\r | |
721 | return null;\r | |
722 | }\r | |
723 | \r | |
724 | return $bstream->toByte();\r | |
725 | }\r | |
726 | }\r | |
727 | \r | |
728 | \r | |
729 |