-
Notifications
You must be signed in to change notification settings - Fork 0
/
datamatrix.php
1148 lines (1106 loc) · 41.4 KB
/
datamatrix.php
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
<?php
//============================================================+
// File name : datamatrix.php
// Version : 1.0.001
// Begin : 2010-06-07
// Last Update : 2011-09-14
// Author : Nicola Asuni - Tecnick.com LTD - Manor Coach House, Church Hill, Aldershot, Hants, GU12 4RQ, UK - www.tecnick.com - [email protected]
// License : GNU-LGPL v3 (http://www.gnu.org/copyleft/lesser.html)
// -------------------------------------------------------------------
// Copyright (C) 2010-2012 Nicola Asuni - Tecnick.com LTD
//
// This file is part of TCPDF software library.
//
// TCPDF is free software: you can redistribute it and/or modify it
// under the terms of the GNU Lesser General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// TCPDF is distributed in the hope that it will be useful, but
// WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
// See the GNU Lesser General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public License
// along with TCPDF. If not, see <http://www.gnu.org/licenses/>.
//
// See LICENSE.TXT file for more information.
// -------------------------------------------------------------------
//
// DESCRIPTION :
//
// Class to create DataMatrix ECC 200 barcode arrays for TCPDF class.
// DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code.
//============================================================+
/**
* @file
* Class to create DataMatrix ECC 200 barcode arrays for TCPDF class.
* DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code.
*
* @package com.tecnick.tcpdf
* @author Nicola Asuni
* @version 1.0.001
*/
// custom definitions
if (!defined('DATAMATRIXDEFS')) {
/**
* Indicate that definitions for this class are set
*/
define('DATAMATRIXDEFS', true);
// -----------------------------------------------------
} // end of custom definitions
// #*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#*#
/**
* ASCII encoding: ASCII character 0 to 127 (1 byte per CW)
*/
define('ENC_ASCII', 0);
/**
* C40 encoding: Upper-case alphanumeric (3/2 bytes per CW)
*/
define('ENC_C40', 1);
/**
* TEXT encoding: Lower-case alphanumeric (3/2 bytes per CW)
*/
define('ENC_TXT', 2);
/**
* X12 encoding: ANSI X12 (3/2 byte per CW)
*/
define('ENC_X12', 3);
/**
* EDIFACT encoding: ASCII character 32 to 94 (4/3 bytes per CW)
*/
define('ENC_EDF', 4);
/**
* BASE 256 encoding: ASCII character 0 to 255 (1 byte per CW)
*/
define('ENC_BASE256', 5);
/**
* ASCII extended encoding: ASCII character 128 to 255 (1/2 byte per CW)
*/
define('ENC_ASCII_EXT', 6);
/**
* ASCII number encoding: ASCII digits (2 bytes per CW)
*/
define('ENC_ASCII_NUM', 7);
/**
* @class Datamatrix
* Class to create DataMatrix ECC 200 barcode arrays for TCPDF class.
* DataMatrix (ISO/IEC 16022:2006) is a 2-dimensional bar code.
*
* @package com.tecnick.tcpdf
* @author Nicola Asuni
* @version 1.0.001
*/
class Datamatrix {
/**
* Barcode array to be returned which is readable by TCPDF.
* @protected
*/
protected $barcode_array = array();
/**
* Store last used encoding for data codewords.
* @protected
*/
protected $last_enc = ENC_ASCII;
/**
* Table of Data Matrix ECC 200 Symbol Attributes:<ul>
* <li>total matrix rows (including finder pattern)</li>
* <li>total matrix cols (including finder pattern)</li>
* <li>total matrix rows (without finder pattern)</li>
* <li>total matrix cols (without finder pattern)</li>
* <li>region data rows (with finder pattern)</li>
* <li>region data col (with finder pattern)</li>
* <li>region data rows (without finder pattern)</li>
* <li>region data col (without finder pattern)</li>
* <li>horizontal regions</li>
* <li>vertical regions</li>
* <li>regions</li>
* <li>data codewords</li>
* <li>error codewords</li>
* <li>blocks</li>
* <li>data codewords per block</li>
* <li>error codewords per block</li>
* </ul>
* @protected
*/
protected $symbattr = array(
// square form ---------------------------------------------------------------------------------------
array(0x00a,0x00a,0x008,0x008,0x00a,0x00a,0x008,0x008,0x001,0x001,0x001,0x003,0x005,0x001,0x003,0x005), // 10x10
array(0x00c,0x00c,0x00a,0x00a,0x00c,0x00c,0x00a,0x00a,0x001,0x001,0x001,0x005,0x007,0x001,0x005,0x007), // 12x12
array(0x00e,0x00e,0x00c,0x00c,0x00e,0x00e,0x00c,0x00c,0x001,0x001,0x001,0x008,0x00a,0x001,0x008,0x00a), // 14x14
array(0x010,0x010,0x00e,0x00e,0x010,0x010,0x00e,0x00e,0x001,0x001,0x001,0x00c,0x00c,0x001,0x00c,0x00c), // 16x16
array(0x012,0x012,0x010,0x010,0x012,0x012,0x010,0x010,0x001,0x001,0x001,0x012,0x00e,0x001,0x012,0x00e), // 18x18
array(0x014,0x014,0x012,0x012,0x014,0x014,0x012,0x012,0x001,0x001,0x001,0x016,0x012,0x001,0x016,0x012), // 20x20
array(0x016,0x016,0x014,0x014,0x016,0x016,0x014,0x014,0x001,0x001,0x001,0x01e,0x014,0x001,0x01e,0x014), // 22x22
array(0x018,0x018,0x016,0x016,0x018,0x018,0x016,0x016,0x001,0x001,0x001,0x024,0x018,0x001,0x024,0x018), // 24x24
array(0x01a,0x01a,0x018,0x018,0x01a,0x01a,0x018,0x018,0x001,0x001,0x001,0x02c,0x01c,0x001,0x02c,0x01c), // 26x26
array(0x020,0x020,0x01c,0x01c,0x010,0x010,0x00e,0x00e,0x002,0x002,0x004,0x03e,0x024,0x001,0x03e,0x024), // 32x32
array(0x024,0x024,0x020,0x020,0x012,0x012,0x010,0x010,0x002,0x002,0x004,0x056,0x02a,0x001,0x056,0x02a), // 36x36
array(0x028,0x028,0x024,0x024,0x014,0x014,0x012,0x012,0x002,0x002,0x004,0x072,0x030,0x001,0x072,0x030), // 40x40
array(0x02c,0x02c,0x028,0x028,0x016,0x016,0x014,0x014,0x002,0x002,0x004,0x090,0x038,0x001,0x090,0x038), // 44x44
array(0x030,0x030,0x02c,0x02c,0x018,0x018,0x016,0x016,0x002,0x002,0x004,0x0ae,0x044,0x001,0x0ae,0x044), // 48x48
array(0x034,0x034,0x030,0x030,0x01a,0x01a,0x018,0x018,0x002,0x002,0x004,0x0cc,0x054,0x002,0x066,0x02a), // 52x52
array(0x040,0x040,0x038,0x038,0x010,0x010,0x00e,0x00e,0x004,0x004,0x010,0x118,0x070,0x002,0x08c,0x038), // 64x64
array(0x048,0x048,0x040,0x040,0x012,0x012,0x010,0x010,0x004,0x004,0x010,0x170,0x090,0x004,0x05c,0x024), // 72x72
array(0x050,0x050,0x048,0x048,0x014,0x014,0x012,0x012,0x004,0x004,0x010,0x1c8,0x0c0,0x004,0x072,0x030), // 80x80
array(0x058,0x058,0x050,0x050,0x016,0x016,0x014,0x014,0x004,0x004,0x010,0x240,0x0e0,0x004,0x090,0x038), // 88x88
array(0x060,0x060,0x058,0x058,0x018,0x018,0x016,0x016,0x004,0x004,0x010,0x2b8,0x110,0x004,0x0ae,0x044), // 96x96
array(0x068,0x068,0x060,0x060,0x01a,0x01a,0x018,0x018,0x004,0x004,0x010,0x330,0x150,0x006,0x088,0x038), // 104x104
array(0x078,0x078,0x06c,0x06c,0x014,0x014,0x012,0x012,0x006,0x006,0x024,0x41a,0x198,0x006,0x0af,0x044), // 120x120
array(0x084,0x084,0x078,0x078,0x016,0x016,0x014,0x014,0x006,0x006,0x024,0x518,0x1f0,0x008,0x0a3,0x03e), // 132x132
array(0x090,0x090,0x084,0x084,0x018,0x018,0x016,0x016,0x006,0x006,0x024,0x616,0x26c,0x00a,0x09c,0x03e), // 144x144
// rectangular form (currently unused) ---------------------------------------------------------------------------
array(0x008,0x012,0x006,0x010,0x008,0x012,0x006,0x010,0x001,0x001,0x001,0x005,0x007,0x001,0x005,0x007), // 8x18
array(0x008,0x020,0x006,0x01c,0x008,0x010,0x006,0x00e,0x001,0x002,0x002,0x00a,0x00b,0x001,0x00a,0x00b), // 8x32
array(0x00c,0x01a,0x00a,0x018,0x00c,0x01a,0x00a,0x018,0x001,0x001,0x001,0x010,0x00e,0x001,0x010,0x00e), // 12x26
array(0x00c,0x024,0x00a,0x020,0x00c,0x012,0x00a,0x010,0x001,0x002,0x002,0x00c,0x012,0x001,0x00c,0x012), // 12x36
array(0x010,0x024,0x00e,0x020,0x010,0x012,0x00e,0x010,0x001,0x002,0x002,0x020,0x018,0x001,0x020,0x018), // 16x36
array(0x010,0x030,0x00e,0x02c,0x010,0x018,0x00e,0x016,0x001,0x002,0x002,0x031,0x01c,0x001,0x031,0x01c) // 16x48
);
/**
* Map encodation modes whit character sets.
* @protected
*/
protected $chset_id = array(ENC_C40 => 'C40', ENC_TXT => 'TXT', ENC_X12 =>'X12');
/**
* Basic set of charactes for each encodation mode.
* @protected
*/
protected $chset = array(
'C40' => array( // Basic set for C40 ----------------------------------------------------------------------------
'S1'=>0x00,'S2'=>0x01,'S3'=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, //
0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x41=>0x0e,0x42=>0x0f,0x43=>0x10,0x44=>0x11,0x45=>0x12,0x46=>0x13, //
0x47=>0x14,0x48=>0x15,0x49=>0x16,0x4a=>0x17,0x4b=>0x18,0x4c=>0x19,0x4d=>0x1a,0x4e=>0x1b,0x4f=>0x1c,0x50=>0x1d, //
0x51=>0x1e,0x52=>0x1f,0x53=>0x20,0x54=>0x21,0x55=>0x22,0x56=>0x23,0x57=>0x24,0x58=>0x25,0x59=>0x26,0x5a=>0x27),//
'TXT' => array( // Basic set for TEXT ---------------------------------------------------------------------------
'S1'=>0x00,'S2'=>0x01,'S3'=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, //
0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x61=>0x0e,0x62=>0x0f,0x63=>0x10,0x64=>0x11,0x65=>0x12,0x66=>0x13, //
0x67=>0x14,0x68=>0x15,0x69=>0x16,0x6a=>0x17,0x6b=>0x18,0x6c=>0x19,0x6d=>0x1a,0x6e=>0x1b,0x6f=>0x1c,0x70=>0x1d, //
0x71=>0x1e,0x72=>0x1f,0x73=>0x20,0x74=>0x21,0x75=>0x22,0x76=>0x23,0x77=>0x24,0x78=>0x25,0x79=>0x26,0x7a=>0x27),//
'SH1' => array( // Shift 1 set ----------------------------------------------------------------------------------
0x00=>0x00,0x01=>0x01,0x02=>0x02,0x03=>0x03,0x04=>0x04,0x05=>0x05,0x06=>0x06,0x07=>0x07,0x08=>0x08,0x09=>0x09, //
0x0a=>0x0a,0x0b=>0x0b,0x0c=>0x0c,0x0d=>0x0d,0x0e=>0x0e,0x0f=>0x0f,0x10=>0x10,0x11=>0x11,0x12=>0x12,0x13=>0x13, //
0x14=>0x14,0x15=>0x15,0x16=>0x16,0x17=>0x17,0x18=>0x18,0x19=>0x19,0x1a=>0x1a,0x1b=>0x1b,0x1c=>0x1c,0x1d=>0x1d, //
0x1e=>0x1e,0x1f=>0x1f), //
'SH2' => array( // Shift 2 set ----------------------------------------------------------------------------------
0x21=>0x00,0x22=>0x01,0x23=>0x02,0x24=>0x03,0x25=>0x04,0x26=>0x05,0x27=>0x06,0x28=>0x07,0x29=>0x08,0x2a=>0x09, //
0x2b=>0x0a,0x2c=>0x0b,0x2d=>0x0c,0x2e=>0x0d,0x2f=>0x0e,0x3a=>0x0f,0x3b=>0x10,0x3c=>0x11,0x3d=>0x12,0x3e=>0x13, //
0x3f=>0x14,0x40=>0x15,0x5b=>0x16,0x5c=>0x17,0x5d=>0x18,0x5e=>0x19,0x5f=>0x1a,'F1'=>0x1b,'US'=>0x1e), //
'S3C' => array( // Shift 3 set for C40 --------------------------------------------------------------------------
0x60=>0x00,0x61=>0x01,0x62=>0x02,0x63=>0x03,0x64=>0x04,0x65=>0x05,0x66=>0x06,0x67=>0x07,0x68=>0x08,0x69=>0x09, //
0x6a=>0x0a,0x6b=>0x0b,0x6c=>0x0c,0x6d=>0x0d,0x6e=>0x0e,0x6f=>0x0f,0x70=>0x10,0x71=>0x11,0x72=>0x12,0x73=>0x13, //
0x74=>0x14,0x75=>0x15,0x76=>0x16,0x77=>0x17,0x78=>0x18,0x79=>0x19,0x7a=>0x1a,0x7b=>0x1b,0x7c=>0x1c,0x7d=>0x1d, //
0x7e=>0x1e,0x7f=>0x1f),
'S3T' => array( // Shift 3 set for TEXT -------------------------------------------------------------------------
0x60=>0x00,0x41=>0x01,0x42=>0x02,0x43=>0x03,0x44=>0x04,0x45=>0x05,0x46=>0x06,0x47=>0x07,0x48=>0x08,0x49=>0x09, //
0x4a=>0x0a,0x4b=>0x0b,0x4c=>0x0c,0x4d=>0x0d,0x4e=>0x0e,0x4f=>0x0f,0x50=>0x10,0x51=>0x11,0x52=>0x12,0x53=>0x13, //
0x54=>0x14,0x55=>0x15,0x56=>0x16,0x57=>0x17,0x58=>0x18,0x59=>0x19,0x5a=>0x1a,0x7b=>0x1b,0x7c=>0x1c,0x7d=>0x1d, //
0x7e=>0x1e,0x7f=>0x1f), //
'X12' => array( // Set for X12 ----------------------------------------------------------------------------------
0x0d=>0x00,0x2a=>0x01,0x3e=>0x02,0x20=>0x03,0x30=>0x04,0x31=>0x05,0x32=>0x06,0x33=>0x07,0x34=>0x08,0x35=>0x09, //
0x36=>0x0a,0x37=>0x0b,0x38=>0x0c,0x39=>0x0d,0x41=>0x0e,0x42=>0x0f,0x43=>0x10,0x44=>0x11,0x45=>0x12,0x46=>0x13, //
0x47=>0x14,0x48=>0x15,0x49=>0x16,0x4a=>0x17,0x4b=>0x18,0x4c=>0x19,0x4d=>0x1a,0x4e=>0x1b,0x4f=>0x1c,0x50=>0x1d, //
0x51=>0x1e,0x52=>0x1f,0x53=>0x20,0x54=>0x21,0x55=>0x22,0x56=>0x23,0x57=>0x24,0x58=>0x25,0x59=>0x26,0x5a=>0x27) //
);
// -----------------------------------------------------------------------------
/**
* This is the class constructor.
* Creates a datamatrix object
* @param $code (string) Code to represent using Datamatrix.
* @public
*/
public function __construct($code) {
$barcode_array = array();
if ((is_null($code)) OR ($code == '\0') OR ($code == '')) {
return false;
}
// get data codewords
$cw = $this->getHighLevelEncoding($code);
// number of data codewords
$nd = count($cw);
// check size
if ($nd > 1558) {
return false;
}
// get minimum required matrix size.
foreach ($this->symbattr as $params) {
if ($params[11] >= $nd) {
break;
}
}
if ($params[11] < $nd) {
// too much data
return false;
} elseif ($params[11] > $nd) {
// add padding
if ($this->last_enc == ENC_EDF) {
// switch to ASCII encoding
$cw[] = 124;
++$nd;
} elseif (($this->last_enc != ENC_ASCII) AND ($this->last_enc != ENC_BASE256)) {
// switch to ASCII encoding
$cw[] = 254;
++$nd;
}
if ($params[11] > $nd) {
// add first pad
$cw[] = 129;
++$nd;
// add remaining pads
for ($i = $nd; $i <= $params[11]; ++$i) {
$cw[] = $this->get253StateCodeword(129, $i);
}
}
}
// add error correction codewords
$cw = $this->getErrorCorrection($cw, $params[13], $params[14], $params[15]);
// initialize empty arrays
$grid = array_fill(0, ($params[2] * $params[3]), 0);
// get placement map
$places = $this->getPlacemetMap($params[2], $params[3]);
// fill the grid with data
$grid = array();
$i = 0;
// region data row max index
$rdri = ($params[4] - 1);
// region data column max index
$rdci = ($params[5] - 1);
// for each vertical region
for ($vr = 0; $vr < $params[9]; ++$vr) {
// for each row on region
for ($r = 0; $r < $params[4]; ++$r) {
// get row
$row = (($vr * $params[4]) + $r);
// for each horizontal region
for ($hr = 0; $hr < $params[8]; ++$hr) {
// for each column on region
for ($c = 0; $c < $params[5]; ++$c) {
// get column
$col = (($hr * $params[5]) + $c);
// braw bits by case
if ($r == 0) {
// top finder pattern
if ($c % 2) {
$grid[$row][$col] = 0;
} else {
$grid[$row][$col] = 1;
}
} elseif ($r == $rdri) {
// bottom finder pattern
$grid[$row][$col] = 1;
} elseif ($c == 0) {
// left finder pattern
$grid[$row][$col] = 1;
} elseif ($c == $rdci) {
// right finder pattern
if ($r % 2) {
$grid[$row][$col] = 1;
} else {
$grid[$row][$col] = 0;
}
} else { // data bit
if ($places[$i] < 2) {
$grid[$row][$col] = $places[$i];
} else {
// codeword ID
$cw_id = (floor($places[$i] / 10) - 1);
// codeword BIT mask
$cw_bit = pow(2, (8 - ($places[$i] % 10)));
$grid[$row][$col] = (($cw[$cw_id] & $cw_bit) == 0) ? 0 : 1;
}
++$i;
}
}
}
}
}
$this->barcode_array['num_rows'] = $params[0];
$this->barcode_array['num_cols'] = $params[1];
$this->barcode_array['bcode'] = $grid;
}
/**
* Returns a barcode array which is readable by TCPDF
* @return array barcode array readable by TCPDF;
* @public
*/
public function getBarcodeArray() {
return $this->barcode_array;
}
/**
* Product of two numbers in a Power-of-Two Galois Field
* @param $a (int) first number to multiply.
* @param $b (int) second number to multiply.
* @param $log (array) Log table.
* @param $alog (array) Anti-Log table.
* @param $gf (array) Number of Factors of the Reed-Solomon polynomial.
* @return int product
* @protected
*/
protected function getGFProduct($a, $b, $log, $alog, $gf) {
if (($a == 0) OR ($b == 0)) {
return 0;
}
return $alog[($log[$a] + $log[$b]) % ($gf - 1)];
}
/**
* Add error correction codewords to data codewords array (ANNEX E).
* @param $wd (array) Array of datacodewords.
* @param $nb (int) Number of blocks.
* @param $nd (int) Number of data codewords per block.
* @param $nc (int) Number of correction codewords per block.
* @param $gf (int) numner of fields on log/antilog table (power of 2).
* @param $pp (int) The value of its prime modulus polynomial (301 for ECC200).
* @return array data codewords + error codewords
* @protected
*/
protected function getErrorCorrection($wd, $nb, $nd, $nc, $gf=256, $pp=301) {
// generate the log ($log) and antilog ($alog) tables
$log[0] = 0;
$alog[0] = 1;
for ($i = 1; $i < $gf; ++$i) {
$alog[$i] = ($alog[($i - 1)] * 2);
if ($alog[$i] >= $gf) {
$alog[$i] ^= $pp;
}
$log[$alog[$i]] = $i;
}
ksort($log);
// generate the polynomial coefficients (c)
$c = array_fill(0, ($nc + 1), 0);
$c[0] = 1;
for ($i = 1; $i <= $nc; ++$i) {
$c[$i] = $c[($i-1)];
for ($j = ($i - 1); $j >= 1; --$j) {
$c[$j] = $c[($j - 1)] ^ $this->getGFProduct($c[$j], $alog[$i], $log, $alog, $gf);
}
$c[0] = $this->getGFProduct($c[0], $alog[$i], $log, $alog, $gf);
}
ksort($c);
// total number of data codewords
$num_wd = ($nb * $nd);
// total number of error codewords
$num_we = ($nb * $nc);
// for each block
for ($b = 0; $b < $nb; ++$b) {
// create interleaved data block
$block = array();
for ($n = $b; $n < $num_wd; $n += $nb) {
$block[] = $wd[$n];
}
// initialize error codewords
$we = array_fill(0, ($nc + 1), 0);
// calculate error correction codewords for this block
for ($i = 0; $i < $nd; ++$i) {
$k = ($we[0] ^ $block[$i]);
for ($j = 0; $j < $nc; ++$j) {
$we[$j] = ($we[($j + 1)] ^ $this->getGFProduct($k, $c[($nc - $j - 1)], $log, $alog, $gf));
}
}
// add error codewords at the end of data codewords
$j = 0;
for ($i = $b; $i < $num_we; $i += $nb) {
$wd[($num_wd + $i)] = $we[$j];
++$j;
}
}
// reorder codewords
ksort($wd);
return $wd;
}
/**
* Return the 253-state codeword
* @param $cwpad (int) Pad codeword.
* @param $cwpos (int) Number of data codewords from the beginning of encoded data.
* @return pad codeword
* @protected
*/
protected function get253StateCodeword($cwpad, $cwpos) {
$pad = ($cwpad + (((149 * $cwpos) % 253) + 1));
if ($pad > 254) {
$pad -= 254;
}
return $pad;
}
/**
* Return the 255-state codeword
* @param $cwpad (int) Pad codeword.
* @param $cwpos (int) Number of data codewords from the beginning of encoded data.
* @return pad codeword
* @protected
*/
protected function get255StateCodeword($cwpad, $cwpos) {
$pad = ($cwpad + (((149 * $cwpos) % 255) + 1));
if ($pad > 255) {
$pad -= 256;
}
return $pad;
}
/**
* Returns true if the char belongs to the selected mode
* @param $chr (int) Character (byte) to check.
* @param $mode (int) Current encoding mode.
* @return boolean true if the char is of the selected mode.
* @protected
*/
protected function isCharMode($chr, $mode) {
$status = false;
switch ($mode) {
case ENC_ASCII: { // ASCII character 0 to 127
$status = (($chr >= 0) AND ($chr <= 127));
break;
}
case ENC_C40: { // Upper-case alphanumeric
$status = (($chr == 32) OR (($chr >= 48) AND ($chr <= 57)) OR (($chr >= 65) AND ($chr <= 90)));
break;
}
case ENC_TXT: { // Lower-case alphanumeric
$status = (($chr == 32) OR (($chr >= 48) AND ($chr <= 57)) OR (($chr >= 97) AND ($chr <= 122)));
break;
}
case ENC_X12: { // ANSI X12
$status = (($chr == 13) OR ($chr == 42) OR ($chr == 62));
break;
}
case ENC_EDF: { // ASCII character 32 to 94
$status = (($chr >= 32) AND ($chr <= 94));
break;
}
case ENC_BASE256: { // Function character (FNC1, Structured Append, Reader Program, or Code Page)
$status = (($chr == 232) OR ($chr == 233) OR ($chr == 234) OR ($chr == 241));
break;
}
case ENC_ASCII_EXT: { // ASCII character 128 to 255
$status = (($chr >= 128) AND ($chr <= 255));
break;
}
case ENC_ASCII_NUM: { // ASCII digits
$status = (($chr >= 48) AND ($chr <= 57));
break;
}
}
return $status;
}
/**
* The look-ahead test scans the data to be encoded to find the best mode (Annex P - steps from J to S).
* @param $data (string) data to encode
* @param $pos (int) current position
* @param $mode (int) current encoding mode
* @return int encoding mode
* @protected
*/
protected function lookAheadTest($data, $pos, $mode) {
$data_length = strlen($data);
if ($pos >= $data_length) {
return $mode;
}
$charscount = 0; // count processed chars
// STEP J
if ($mode == ENC_ASCII) {
$numch = array(0, 1, 1, 1, 1, 1.25);
} else {
$numch = array(1, 2, 2, 2, 2, 2.25);
$numch[$mode] = 0;
}
while (true) {
// STEP K
if (($pos + $charscount) == $data_length) {
if ($numch[ENC_ASCII] <= ceil(min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256]))) {
return ENC_ASCII;
}
if ($numch[ENC_BASE256] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF]))) {
return ENC_BASE256;
}
if ($numch[ENC_EDF] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_BASE256]))) {
return ENC_EDF;
}
if ($numch[ENC_TXT] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256]))) {
return ENC_TXT;
}
if ($numch[ENC_X12] < ceil(min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256]))) {
return ENC_X12;
}
return ENC_C40;
}
// get char
$chr = ord($data{($pos + $charscount)});
$charscount++;
// STEP L
if ($this->isCharMode($chr, ENC_ASCII_NUM)) {
$numch[ENC_ASCII] += (1 / 2);
} elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) {
$numch[ENC_ASCII] = ceil($numch[ENC_ASCII]);
$numch[ENC_ASCII] += 2;
} else {
$numch[ENC_ASCII] = ceil($numch[ENC_ASCII]);
$numch[ENC_ASCII] += 1;
}
// STEP M
if ($this->isCharMode($chr, ENC_C40)) {
$numch[ENC_C40] += (2 / 3);
} elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) {
$numch[ENC_C40] += (8 / 3);
} else {
$numch[ENC_C40] += (4 / 3);
}
// STEP N
if ($this->isCharMode($chr, ENC_TXT)) {
$numch[ENC_TXT] += (2 / 3);
} elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) {
$numch[ENC_TXT] += (8 / 3);
} else {
$numch[ENC_TXT] += (4 / 3);
}
// STEP O
if ($this->isCharMode($chr, ENC_X12) OR $this->isCharMode($chr, ENC_C40)) {
$numch[ENC_X12] += (2 / 3);
} elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) {
$numch[ENC_X12] += (13 / 3);
} else {
$numch[ENC_X12] += (10 / 3);
}
// STEP P
if ($this->isCharMode($chr, ENC_EDF)) {
$numch[ENC_EDF] += (3 / 4);
} elseif ($this->isCharMode($chr, ENC_ASCII_EXT)) {
$numch[ENC_EDF] += (17 / 4);
} else {
$numch[ENC_EDF] += (13 / 4);
}
// STEP Q
if ($this->isCharMode($chr, ENC_BASE256)) {
$numch[ENC_BASE256] += 4;
} else {
$numch[ENC_BASE256] += 1;
}
// STEP R
if ($charscount >= 4) {
if (($numch[ENC_ASCII] + 1) <= min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256])) {
return ENC_ASCII;
}
if ((($numch[ENC_BASE256] + 1) <= $numch[ENC_ASCII])
OR (($numch[ENC_BASE256] + 1) < min($numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_EDF]))) {
return ENC_BASE256;
}
if (($numch[ENC_EDF] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_X12], $numch[ENC_BASE256])) {
return ENC_EDF;
}
if (($numch[ENC_TXT] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_X12], $numch[ENC_EDF], $numch[ENC_BASE256])) {
return ENC_TXT;
}
if (($numch[ENC_X12] + 1) < min($numch[ENC_ASCII], $numch[ENC_C40], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256])) {
return ENC_X12;
}
if (($numch[ENC_C40] + 1) < min($numch[ENC_ASCII], $numch[ENC_TXT], $numch[ENC_EDF], $numch[ENC_BASE256])) {
if ($numch[ENC_C40] < $numch[ENC_X12]) {
return ENC_C40;
}
if ($numch[ENC_C40] == $numch[ENC_X12]) {
$k = ($pos + $charscount + 1);
while ($k < $data_length) {
$tmpchr = ord($data{$k});
if ($this->isCharMode($tmpchr, ENC_X12)) {
return ENC_X12;
} elseif (!($this->isCharMode($tmpchr, ENC_X12) OR $this->isCharMode($tmpchr, ENC_C40))) {
break;
}
++$k;
}
return ENC_C40;
}
}
}
} // end of while
}
/**
* Get the switching codeword to a new encoding mode (latch codeword)
* @param $mode (int) New encoding mode.
* @return (int) Switch codeword.
* @protected
*/
protected function getSwitchEncodingCodeword($mode) {
switch ($mode) {
case ENC_ASCII: { // ASCII character 0 to 127
$cw = 254;
break;
}
case ENC_C40: { // Upper-case alphanumeric
$cw = 230;
break;
}
case ENC_TXT: { // Lower-case alphanumeric
$cw = 239;
break;
}
case ENC_X12: { // ANSI X12
$cw = 238;
break;
}
case ENC_EDF: { // ASCII character 32 to 94
$cw = 240;
break;
}
case ENC_BASE256: { // Function character (FNC1, Structured Append, Reader Program, or Code Page)
$cw = 231;
break;
}
}
return $cw;
}
/**
* Choose the minimum matrix size and return the max number of data codewords.
* @param $numcw (int) Number of current codewords.
* @return number of data codewords in matrix
* @protected
*/
protected function getMaxDataCodewords($numcw) {
foreach ($this->symbattr as $key => $matrix) {
if ($matrix[11] >= $numcw) {
return $matrix[11];
}
}
return 0;
}
/**
* Get high level encoding using the minimum symbol data characters for ECC 200
* @param $data (string) data to encode
* @return array of codewords
* @protected
*/
protected function getHighLevelEncoding($data) {
// STEP A. Start in ASCII encodation.
$enc = ENC_ASCII; // current encoding mode
$pos = 0; // current position
$cw = array(); // array of codewords to be returned
$cw_num = 0; // number of data codewords
$data_lenght = strlen($data); // number of chars
while ($pos < $data_lenght) {
switch ($enc) {
case ENC_ASCII: { // STEP B. While in ASCII encodation
if (($data_lenght > 1) AND ($pos < ($data_lenght - 1)) AND ($this->isCharMode(ord($data{($pos)}), ENC_ASCII_NUM) AND $this->isCharMode(ord($data{($pos + 1)}), ENC_ASCII_NUM))) {
// 1. If the next data sequence is at least 2 consecutive digits, encode the next two digits as a double digit in ASCII mode.
$cw[] = (intval(substr($data, $pos, 2)) + 130);
++$cw_num;
$pos += 2;
} else {
// 2. If the look-ahead test (starting at step J) indicates another mode, switch to that mode.
$newenc = $this->lookAheadTest($data, $pos, $enc);
if ($newenc != $enc) {
// switch to new encoding
$enc = $newenc;
$cw[] = $this->getSwitchEncodingCodeword($enc);
++$cw_num;
} else {
// get new byte
$chr = ord($data{($pos)});
++$pos;
if ($this->isCharMode($chr, ENC_ASCII_EXT)) {
// 3. If the next data character is extended ASCII (greater than 127) encode it in ASCII mode first using the Upper Shift (value 235) character.
$cw[] = 235;
$cw[] = ($chr - 127);
$cw_num += 2;
} else {
// 4. Otherwise process the next data character in ASCII encodation.
$cw[] = ($chr + 1);
++$cw_num;
}
}
}
break;
}
case ENC_C40 : // Upper-case alphanumeric
case ENC_TXT : // Lower-case alphanumeric
case ENC_X12 : { // ANSI X12
$temp_cw = array();
$p = 0;
$epos = $pos;
// get charset ID
$set_id = $this->chset_id[$enc];
// get basic charset for current encoding
$charset = $this->chset[$set_id];
do {
// 2. process the next character in C40 encodation.
$chr = ord($data{($epos)});
++$epos;
// check for extended character
if ($chr & 0x80) {
if ($enc == ENC_X12) {
return false;
}
$chr = ($chr & 0x7f);
$temp_cw[] = 1; // shift 2
$temp_cw[] = 30; // upper shift
$p += 2;
}
if (isset($charset[$chr])) {
$temp_cw[] = $charset[$chr];
++$p;
} else {
if (isset($this->chset['SH1'][$chr])) {
$temp_cw[] = 0; // shift 1
$shiftset = $this->chset['SH1'];
} elseif (isset($chr, $this->chset['SH2'][$chr])) {
$temp_cw[] = 1; // shift 2
$shiftset = $this->chset['SH2'];
} elseif (($enc == ENC_C40) AND isset($this->chset['S3C'][$chr])) {
$temp_cw[] = 2; // shift 3
$shiftset = $this->chset['S3C'];
} elseif (($enc == ENC_TXT) AND isset($this->chset['S3T'][$chr])) {
$temp_cw[] = 2; // shift 3
$shiftset = $this->chset['S3T'];
} else {
return false;
}
$temp_cw[] = $shiftset[$chr];
$p += 2;
}
if ($p >= 3) {
$c1 = array_shift($temp_cw);
$c2 = array_shift($temp_cw);
$c3 = array_shift($temp_cw);
$p -= 3;
$tmp = ((1600 * $c1) + (40 * $c2) + $c3 + 1);
$cw[] = ($tmp >> 8);
$cw[] = ($tmp % 256);
$cw_num += 2;
$pos = $epos;
// 1. If the C40 encoding is at the point of starting a new double symbol character and if the look-ahead test (starting at step J) indicates another mode, switch to that mode.
$newenc = $this->lookAheadTest($data, $pos, $enc);
if ($newenc != $enc) {
$enc = $newenc;
$cw[] = $this->getSwitchEncodingCodeword($enc);
++$cw_num;
break;
}
}
} while (($p > 0) AND ($epos < $data_lenght));
// process last data (if any)
if ($p > 0) {
// get remaining number of data symbols
$cwr = ($this->getMaxDataCodewords($cw_num + 2) - $cw_num);
if (($cwr == 1) AND ($p == 1)) {
// d. If one symbol character remains and one C40 value (data character) remains to be encoded
$c1 = array_shift($temp_cw);
--$p;
$cw[] = ($c1 + 1);
++$cw_num;
} elseif (($cwr == 2) AND ($p == 1)) {
// c. If two symbol characters remain and only one C40 value (data character) remains to be encoded
$c1 = array_shift($temp_cw);
--$p;
$cw[] = 254;
$cw[] = ($c1 + 1);
$cw_num += 2;
} elseif (($cwr == 2) AND ($p == 2)) {
// b. If two symbol characters remain and two C40 values remain to be encoded
$c1 = array_shift($temp_cw);
$c2 = array_shift($temp_cw);
$p -= 2;
$tmp = ((1600 * $c1) + (40 * $c2) + 1);
$cw[] = ($tmp >> 8);
$cw[] = ($tmp % 256);
$cw_num += 2;
} else {
// switch to ASCII encoding
$enc = ENC_ASCII;
$cw[] = $this->getSwitchEncodingCodeword($enc);
++$cw_num;
}
}
break;
}
case ENC_EDF: { // F. While in EDIFACT (EDF) encodation
// initialize temporary array with 0 lenght
$temp_cw = array();
$epos = $pos;
$field_lenght = 0;
while ($epos < $data_lenght) {
// 2. process the next character in EDIFACT encodation.
$chr = ord($data{($epos)});
++$epos;
$temp_cw[] = $chr;
++$field_lenght;
if (($field_lenght == 4) OR ($epos == $data_lenght)) {
if ($field_lenght < 4) {
// set unlatch character
$temp_cw[] = 0x1f;
++$field_lenght;
$enc = ENC_ASCII;
// fill empty characters
for ($i = $field_lenght; $i < 4; ++$i) {
$temp_cw[] = 0;
}
}
// encodes four data characters in three codewords
$cw[] = (($temp_cw[0] & 0x3F) << 2) + (($temp_cw[1] & 0x30) >> 4);
$cw[] = (($temp_cw[1] & 0x0F) << 4) + (($temp_cw[2] & 0x3C) >> 2);
$cw[] = (($temp_cw[2] & 0x03) << 6) + ($temp_cw[3] & 0x3F);
$cw_num += 3;
$temp_cw = array();
$pos = $epos;
$field_lenght = 0;
}
// 1. If the EDIFACT encoding is at the point of starting a new triple symbol character and if the look-ahead test (starting at step J) indicates another mode, switch to that mode.
if ($field_lenght == 0) {
// get remaining number of data symbols
$cwr = ($this->getMaxDataCodewords($cw_num + 2) - $cw_num);
if ($cwr < 3) {
// return to ascii without unlatch
$enc = ENC_ASCII;
break; // exit from EDIFACT mode
} else {
$newenc = $this->lookAheadTest($data, $pos, $enc);
if ($newenc != $enc) {
// 1. If the look-ahead test (starting at step J) indicates another mode, switch to that mode.
$enc = $newenc;
$cw[] = $this->getSwitchEncodingCodeword($enc);
++$cw_num;
break; // exit from EDIFACT mode
}
}
}
}
break;
}
case ENC_BASE256: { // G. While in Base 256 (B256) encodation
// initialize temporary array with 0 lenght
$temp_cw = array();
$field_lenght = 0;
while (($pos < $data_lenght) AND ($field_lenght <= 1555)) {
$newenc = $this->lookAheadTest($data, $pos, $enc);
if ($newenc != $enc) {
// 1. If the look-ahead test (starting at step J) indicates another mode, switch to that mode.
$enc = $newenc;
$cw[] = $this->getSwitchEncodingCodeword($enc);
++$cw_num;
break; // exit from B256 mode
} else {
// 2. Otherwise, process the next character in Base 256 encodation.
$chr = ord($data{($pos)});
++$pos;
$temp_cw[] = $chr;
++$field_lenght;
}
}
// set field lenght
if ($field_lenght <= 249) {
$cw[] = $field_lenght;
++$cw_num;
} else {
$cw[] = (floor($field_lenght / 250) + 249);
$cw[] = ($field_lenght % 250);
$cw_num += 2;
}
if (!empty($temp_cw)) {
// add B256 field
foreach ($temp_cw as $p => $cht) {
$cw[] = $this->get255StateCodeword($chr, ($cw_num + $p));
}
}
break;
}
} // end of switch enc
} // end of while
// set last used encoding
$this->last_enc = $enc;
return $cw;
}
/**
* Places "chr+bit" with appropriate wrapping within array[].
* (Annex F - ECC 200 symbol character placement)
* @param $marr (array) Array of symbols.
* @param $nrow (int) Number of rows.
* @param $ncol (int) Number of columns.
* @param $row (int) Row number.
* @param $col (int) Column number.
* @param $chr (int) Char byte.
* @param $bit (int) Bit.
* @return array
* @protected
*/
protected function placeModule($marr, $nrow, $ncol, $row, $col, $chr, $bit) {
if ($row < 0) {
$row += $nrow;
$col += (4 - (($nrow + 4) % 8));
}
if ($col < 0) {
$col += $ncol;
$row += (4 - (($ncol + 4) % 8));
}
$marr[(($row * $ncol) + $col)] = ((10 * $chr) + $bit);
return $marr;
}
/**
* Places the 8 bits of a utah-shaped symbol character.
* (Annex F - ECC 200 symbol character placement)
* @param $marr (array) Array of symbols.
* @param $nrow (int) Number of rows.
* @param $ncol (int) Number of columns.
* @param $row (int) Row number.
* @param $col (int) Column number.
* @param $chr (int) Char byte.
* @return array
* @protected
*/
protected function placeUtah($marr, $nrow, $ncol, $row, $col, $chr) {
$marr = $this->placeModule($marr, $nrow, $ncol, $row-2, $col-2, $chr, 1);
$marr = $this->placeModule($marr, $nrow, $ncol, $row-2, $col-1, $chr, 2);
$marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col-2, $chr, 3);
$marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col-1, $chr, 4);
$marr = $this->placeModule($marr, $nrow, $ncol, $row-1, $col, $chr, 5);
$marr = $this->placeModule($marr, $nrow, $ncol, $row, $col-2, $chr, 6);
$marr = $this->placeModule($marr, $nrow, $ncol, $row, $col-1, $chr, 7);
$marr = $this->placeModule($marr, $nrow, $ncol, $row, $col, $chr, 8);
return $marr;
}
/**
* Places the 8 bits of the first special corner case.
* (Annex F - ECC 200 symbol character placement)
* @param $marr (array) Array of symbols.
* @param $nrow (int) Number of rows.
* @param $ncol (int) Number of columns.
* @param $chr (int) Char byte.
* @return array
* @protected
*/