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|
/*
* lgl-barcode-onecode.c
* Copyright (C) 2010 Jim Evins <evins@snaught.com>.
*
* This file is part of libglbarcode.
*
* libglbarcode 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.
*
* libglbarcode 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 libglbarcode. If not, see <http://www.gnu.org/licenses/>.
*/
/*
* This module implements the Intelligent Mail (OneCode) barcode
* specified in the USPS specification USPS-B-3200E, 07/08/05.
*/
#include <config.h>
#include "lgl-barcode-onecode.h"
#include <glib.h>
#include <ctype.h>
#include <string.h>
/*========================================================*/
/* Private macros and constants. */
/*========================================================*/
#define CHAR_A 0
#define CHAR_B 1
#define CHAR_C 2
#define CHAR_D 3
#define CHAR_E 4
#define CHAR_F 5
#define CHAR_G 6
#define CHAR_H 7
#define CHAR_I 8
#define CHAR_J 9
#define PTS_PER_INCH 72.0
#define ONECODE_BAR_WIDTH ( 0.02 * PTS_PER_INCH )
#define ONECODE_FULL_HEIGHT ( 0.145 * PTS_PER_INCH )
#define ONECODE_ASCENDER_HEIGHT ( 0.0965 * PTS_PER_INCH )
#define ONECODE_DESCENDER_HEIGHT ( 0.0965 * PTS_PER_INCH )
#define ONECODE_TRACKER_HEIGHT ( 0.048 * PTS_PER_INCH )
#define ONECODE_FULL_OFFSET 0
#define ONECODE_ASCENDER_OFFSET 0
#define ONECODE_DESCENDER_OFFSET ( 0.0485 * PTS_PER_INCH )
#define ONECODE_TRACKER_OFFSET ( 0.0485 * PTS_PER_INCH )
#define ONECODE_BAR_PITCH ( 0.0458 * PTS_PER_INCH )
#define ONECODE_HORIZ_MARGIN ( 0.125 * PTS_PER_INCH )
#define ONECODE_VERT_MARGIN ( 0.028 * PTS_PER_INCH )
/*========================================================*/
/* Private types. */
/*========================================================*/
typedef struct {
guchar byte[13];
} Int104;
typedef struct {
struct { gint i; gint mask; } descender;
struct { gint i; gint mask; } ascender;
} BarMapEntry;
/*===========================================*/
/* Private globals */
/*===========================================*/
static BarMapEntry bar_map[] = {
/* 1 */ { { CHAR_H, 1<<2 }, { CHAR_E, 1<<3 } },
/* 2 */ { { CHAR_B, 1<<10 }, { CHAR_A, 1<<0 } },
/* 3 */ { { CHAR_J, 1<<12 }, { CHAR_C, 1<<8 } },
/* 4 */ { { CHAR_F, 1<<5 }, { CHAR_G, 1<<11 } },
/* 5 */ { { CHAR_I, 1<<9 }, { CHAR_D, 1<<1 } },
/* 6 */ { { CHAR_A, 1<<1 }, { CHAR_F, 1<<12 } },
/* 7 */ { { CHAR_C, 1<<5 }, { CHAR_B, 1<<8 } },
/* 8 */ { { CHAR_E, 1<<4 }, { CHAR_J, 1<<11 } },
/* 9 */ { { CHAR_G, 1<<3 }, { CHAR_I, 1<<10 } },
/* 10 */ { { CHAR_D, 1<<9 }, { CHAR_H, 1<<6 } },
/* 11 */ { { CHAR_F, 1<<11 }, { CHAR_B, 1<<4 } },
/* 12 */ { { CHAR_I, 1<<5 }, { CHAR_C, 1<<12 } },
/* 13 */ { { CHAR_J, 1<<10 }, { CHAR_A, 1<<2 } },
/* 14 */ { { CHAR_H, 1<<1 }, { CHAR_G, 1<<7 } },
/* 15 */ { { CHAR_D, 1<<6 }, { CHAR_E, 1<<9 } },
/* 16 */ { { CHAR_A, 1<<3 }, { CHAR_I, 1<<6 } },
/* 17 */ { { CHAR_G, 1<<4 }, { CHAR_C, 1<<7 } },
/* 18 */ { { CHAR_B, 1<<1 }, { CHAR_J, 1<<9 } },
/* 19 */ { { CHAR_H, 1<<10 }, { CHAR_F, 1<<2 } },
/* 20 */ { { CHAR_E, 1<<0 }, { CHAR_D, 1<<8 } },
/* 21 */ { { CHAR_G, 1<<2 }, { CHAR_A, 1<<4 } },
/* 22 */ { { CHAR_I, 1<<11 }, { CHAR_B, 1<<0 } },
/* 23 */ { { CHAR_J, 1<<8 }, { CHAR_D, 1<<12 } },
/* 24 */ { { CHAR_C, 1<<6 }, { CHAR_H, 1<<7 } },
/* 25 */ { { CHAR_F, 1<<1 }, { CHAR_E, 1<<10 } },
/* 26 */ { { CHAR_B, 1<<12 }, { CHAR_G, 1<<9 } },
/* 27 */ { { CHAR_H, 1<<3 }, { CHAR_I, 1<<0 } },
/* 28 */ { { CHAR_F, 1<<8 }, { CHAR_J, 1<<7 } },
/* 29 */ { { CHAR_E, 1<<6 }, { CHAR_C, 1<<10 } },
/* 30 */ { { CHAR_D, 1<<4 }, { CHAR_A, 1<<5 } },
/* 31 */ { { CHAR_I, 1<<4 }, { CHAR_F, 1<<7 } },
/* 32 */ { { CHAR_H, 1<<11 }, { CHAR_B, 1<<9 } },
/* 33 */ { { CHAR_G, 1<<0 }, { CHAR_J, 1<<6 } },
/* 34 */ { { CHAR_A, 1<<6 }, { CHAR_E, 1<<8 } },
/* 35 */ { { CHAR_C, 1<<1 }, { CHAR_D, 1<<2 } },
/* 36 */ { { CHAR_F, 1<<9 }, { CHAR_I, 1<<12 } },
/* 37 */ { { CHAR_E, 1<<11 }, { CHAR_G, 1<<1 } },
/* 38 */ { { CHAR_J, 1<<5 }, { CHAR_H, 1<<4 } },
/* 39 */ { { CHAR_D, 1<<3 }, { CHAR_B, 1<<2 } },
/* 40 */ { { CHAR_A, 1<<7 }, { CHAR_C, 1<<0 } },
/* 41 */ { { CHAR_B, 1<<3 }, { CHAR_E, 1<<1 } },
/* 42 */ { { CHAR_G, 1<<10 }, { CHAR_D, 1<<5 } },
/* 43 */ { { CHAR_I, 1<<7 }, { CHAR_J, 1<<4 } },
/* 44 */ { { CHAR_C, 1<<11 }, { CHAR_F, 1<<6 } },
/* 45 */ { { CHAR_A, 1<<8 }, { CHAR_H, 1<<12 } },
/* 46 */ { { CHAR_E, 1<<2 }, { CHAR_I, 1<<1 } },
/* 47 */ { { CHAR_F, 1<<10 }, { CHAR_D, 1<<0 } },
/* 48 */ { { CHAR_J, 1<<3 }, { CHAR_A, 1<<9 } },
/* 49 */ { { CHAR_G, 1<<5 }, { CHAR_C, 1<<4 } },
/* 50 */ { { CHAR_H, 1<<8 }, { CHAR_B, 1<<7 } },
/* 51 */ { { CHAR_F, 1<<0 }, { CHAR_E, 1<<5 } },
/* 52 */ { { CHAR_C, 1<<3 }, { CHAR_A, 1<<10 } },
/* 53 */ { { CHAR_G, 1<<12 }, { CHAR_J, 1<<2 } },
/* 54 */ { { CHAR_D, 1<<11 }, { CHAR_B, 1<<6 } },
/* 55 */ { { CHAR_I, 1<<8 }, { CHAR_H, 1<<9 } },
/* 56 */ { { CHAR_F, 1<<4 }, { CHAR_A, 1<<11 } },
/* 57 */ { { CHAR_B, 1<<5 }, { CHAR_C, 1<<2 } },
/* 58 */ { { CHAR_J, 1<<1 }, { CHAR_E, 1<<12 } },
/* 59 */ { { CHAR_I, 1<<3 }, { CHAR_G, 1<<6 } },
/* 60 */ { { CHAR_H, 1<<0 }, { CHAR_D, 1<<7 } },
/* 61 */ { { CHAR_E, 1<<7 }, { CHAR_H, 1<<5 } },
/* 62 */ { { CHAR_A, 1<<12 }, { CHAR_B, 1<<11 } },
/* 63 */ { { CHAR_C, 1<<9 }, { CHAR_J, 1<<0 } },
/* 64 */ { { CHAR_G, 1<<8 }, { CHAR_F, 1<<3 } },
/* 65 */ { { CHAR_D, 1<<10 }, { CHAR_I, 1<<2 } }
};
static gchar * tdaf_table[4] = { "T", "D", "A", "F" };
static guint character_table[] = {
/* Table I 5 of 13. */
31, 7936, 47, 7808, 55, 7552, 59, 7040, 61, 6016,
62, 3968, 79, 7744, 87, 7488, 91, 6976, 93, 5952,
94, 3904, 103, 7360, 107, 6848, 109, 5824, 110, 3776,
115, 6592, 117, 5568, 118, 3520, 121, 5056, 122, 3008,
124, 1984, 143, 7712, 151, 7456, 155, 6944, 157, 5920,
158, 3872, 167, 7328, 171, 6816, 173, 5792, 174, 3744,
179, 6560, 181, 5536, 182, 3488, 185, 5024, 186, 2976,
188, 1952, 199, 7264, 203, 6752, 205, 5728, 206, 3680,
211, 6496, 213, 5472, 214, 3424, 217, 4960, 218, 2912,
220, 1888, 227, 6368, 229, 5344, 230, 3296, 233, 4832,
234, 2784, 236, 1760, 241, 4576, 242, 2528, 244, 1504,
248, 992, 271, 7696, 279, 7440, 283, 6928, 285, 5904,
286, 3856, 295, 7312, 299, 6800, 301, 5776, 302, 3728,
307, 6544, 309, 5520, 310, 3472, 313, 5008, 314, 2960,
316, 1936, 327, 7248, 331, 6736, 333, 5712, 334, 3664,
339, 6480, 341, 5456, 342, 3408, 345, 4944, 346, 2896,
348, 1872, 355, 6352, 357, 5328, 358, 3280, 361, 4816,
362, 2768, 364, 1744, 369, 4560, 370, 2512, 372, 1488,
376, 976, 391, 7216, 395, 6704, 397, 5680, 398, 3632,
403, 6448, 405, 5424, 406, 3376, 409, 4912, 410, 2864,
412, 1840, 419, 6320, 421, 5296, 422, 3248, 425, 4784,
426, 2736, 428, 1712, 433, 4528, 434, 2480, 436, 1456,
440, 944, 451, 6256, 453, 5232, 454, 3184, 457, 4720,
458, 2672, 460, 1648, 465, 4464, 466, 2416, 468, 1392,
472, 880, 481, 4336, 482, 2288, 484, 1264, 488, 752,
527, 7688, 535, 7432, 539, 6920, 541, 5896, 542, 3848,
551, 7304, 555, 6792, 557, 5768, 558, 3720, 563, 6536,
565, 5512, 566, 3464, 569, 5000, 570, 2952, 572, 1928,
583, 7240, 587, 6728, 589, 5704, 590, 3656, 595, 6472,
597, 5448, 598, 3400, 601, 4936, 602, 2888, 604, 1864,
611, 6344, 613, 5320, 614, 3272, 617, 4808, 618, 2760,
620, 1736, 625, 4552, 626, 2504, 628, 1480, 632, 968,
647, 7208, 651, 6696, 653, 5672, 654, 3624, 659, 6440,
661, 5416, 662, 3368, 665, 4904, 666, 2856, 668, 1832,
675, 6312, 677, 5288, 678, 3240, 681, 4776, 682, 2728,
684, 1704, 689, 4520, 690, 2472, 692, 1448, 696, 936,
707, 6248, 709, 5224, 710, 3176, 713, 4712, 714, 2664,
716, 1640, 721, 4456, 722, 2408, 724, 1384, 728, 872,
737, 4328, 738, 2280, 740, 1256, 775, 7192, 779, 6680,
781, 5656, 782, 3608, 787, 6424, 789, 5400, 790, 3352,
793, 4888, 794, 2840, 796, 1816, 803, 6296, 805, 5272,
806, 3224, 809, 4760, 810, 2712, 812, 1688, 817, 4504,
818, 2456, 820, 1432, 824, 920, 835, 6232, 837, 5208,
838, 3160, 841, 4696, 842, 2648, 844, 1624, 849, 4440,
850, 2392, 852, 1368, 865, 4312, 866, 2264, 868, 1240,
899, 6200, 901, 5176, 902, 3128, 905, 4664, 906, 2616,
908, 1592, 913, 4408, 914, 2360, 916, 1336, 929, 4280,
930, 2232, 932, 1208, 961, 4216, 962, 2168, 964, 1144,
1039, 7684, 1047, 7428, 1051, 6916, 1053, 5892, 1054, 3844,
1063, 7300, 1067, 6788, 1069, 5764, 1070, 3716, 1075, 6532,
1077, 5508, 1078, 3460, 1081, 4996, 1082, 2948, 1084, 1924,
1095, 7236, 1099, 6724, 1101, 5700, 1102, 3652, 1107, 6468,
1109, 5444, 1110, 3396, 1113, 4932, 1114, 2884, 1116, 1860,
1123, 6340, 1125, 5316, 1126, 3268, 1129, 4804, 1130, 2756,
1132, 1732, 1137, 4548, 1138, 2500, 1140, 1476, 1159, 7204,
1163, 6692, 1165, 5668, 1166, 3620, 1171, 6436, 1173, 5412,
1174, 3364, 1177, 4900, 1178, 2852, 1180, 1828, 1187, 6308,
1189, 5284, 1190, 3236, 1193, 4772, 1194, 2724, 1196, 1700,
1201, 4516, 1202, 2468, 1204, 1444, 1219, 6244, 1221, 5220,
1222, 3172, 1225, 4708, 1226, 2660, 1228, 1636, 1233, 4452,
1234, 2404, 1236, 1380, 1249, 4324, 1250, 2276, 1287, 7188,
1291, 6676, 1293, 5652, 1294, 3604, 1299, 6420, 1301, 5396,
1302, 3348, 1305, 4884, 1306, 2836, 1308, 1812, 1315, 6292,
1317, 5268, 1318, 3220, 1321, 4756, 1322, 2708, 1324, 1684,
1329, 4500, 1330, 2452, 1332, 1428, 1347, 6228, 1349, 5204,
1350, 3156, 1353, 4692, 1354, 2644, 1356, 1620, 1361, 4436,
1362, 2388, 1377, 4308, 1378, 2260, 1411, 6196, 1413, 5172,
1414, 3124, 1417, 4660, 1418, 2612, 1420, 1588, 1425, 4404,
1426, 2356, 1441, 4276, 1442, 2228, 1473, 4212, 1474, 2164,
1543, 7180, 1547, 6668, 1549, 5644, 1550, 3596, 1555, 6412,
1557, 5388, 1558, 3340, 1561, 4876, 1562, 2828, 1564, 1804,
1571, 6284, 1573, 5260, 1574, 3212, 1577, 4748, 1578, 2700,
1580, 1676, 1585, 4492, 1586, 2444, 1603, 6220, 1605, 5196,
1606, 3148, 1609, 4684, 1610, 2636, 1617, 4428, 1618, 2380,
1633, 4300, 1634, 2252, 1667, 6188, 1669, 5164, 1670, 3116,
1673, 4652, 1674, 2604, 1681, 4396, 1682, 2348, 1697, 4268,
1698, 2220, 1729, 4204, 1730, 2156, 1795, 6172, 1797, 5148,
1798, 3100, 1801, 4636, 1802, 2588, 1809, 4380, 1810, 2332,
1825, 4252, 1826, 2204, 1857, 4188, 1858, 2140, 1921, 4156,
1922, 2108, 2063, 7682, 2071, 7426, 2075, 6914, 2077, 5890,
2078, 3842, 2087, 7298, 2091, 6786, 2093, 5762, 2094, 3714,
2099, 6530, 2101, 5506, 2102, 3458, 2105, 4994, 2106, 2946,
2119, 7234, 2123, 6722, 2125, 5698, 2126, 3650, 2131, 6466,
2133, 5442, 2134, 3394, 2137, 4930, 2138, 2882, 2147, 6338,
2149, 5314, 2150, 3266, 2153, 4802, 2154, 2754, 2161, 4546,
2162, 2498, 2183, 7202, 2187, 6690, 2189, 5666, 2190, 3618,
2195, 6434, 2197, 5410, 2198, 3362, 2201, 4898, 2202, 2850,
2211, 6306, 2213, 5282, 2214, 3234, 2217, 4770, 2218, 2722,
2225, 4514, 2226, 2466, 2243, 6242, 2245, 5218, 2246, 3170,
2249, 4706, 2250, 2658, 2257, 4450, 2258, 2402, 2273, 4322,
2311, 7186, 2315, 6674, 2317, 5650, 2318, 3602, 2323, 6418,
2325, 5394, 2326, 3346, 2329, 4882, 2330, 2834, 2339, 6290,
2341, 5266, 2342, 3218, 2345, 4754, 2346, 2706, 2353, 4498,
2354, 2450, 2371, 6226, 2373, 5202, 2374, 3154, 2377, 4690,
2378, 2642, 2385, 4434, 2401, 4306, 2435, 6194, 2437, 5170,
2438, 3122, 2441, 4658, 2442, 2610, 2449, 4402, 2465, 4274,
2497, 4210, 2567, 7178, 2571, 6666, 2573, 5642, 2574, 3594,
2579, 6410, 2581, 5386, 2582, 3338, 2585, 4874, 2586, 2826,
2595, 6282, 2597, 5258, 2598, 3210, 2601, 4746, 2602, 2698,
2609, 4490, 2627, 6218, 2629, 5194, 2630, 3146, 2633, 4682,
2641, 4426, 2657, 4298, 2691, 6186, 2693, 5162, 2694, 3114,
2697, 4650, 2705, 4394, 2721, 4266, 2753, 4202, 2819, 6170,
2821, 5146, 2822, 3098, 2825, 4634, 2833, 4378, 2849, 4250,
2881, 4186, 2945, 4154, 3079, 7174, 3083, 6662, 3085, 5638,
3086, 3590, 3091, 6406, 3093, 5382, 3094, 3334, 3097, 4870,
3107, 6278, 3109, 5254, 3110, 3206, 3113, 4742, 3121, 4486,
3139, 6214, 3141, 5190, 3145, 4678, 3153, 4422, 3169, 4294,
3203, 6182, 3205, 5158, 3209, 4646, 3217, 4390, 3233, 4262,
3265, 4198, 3331, 6166, 3333, 5142, 3337, 4630, 3345, 4374,
3361, 4246, 3393, 4182, 3457, 4150, 3587, 6158, 3589, 5134,
3593, 4622, 3601, 4366, 3617, 4238, 3649, 4174, 3713, 4142,
3841, 4126, 4111, 7681, 4119, 7425, 4123, 6913, 4125, 5889,
4135, 7297, 4139, 6785, 4141, 5761, 4147, 6529, 4149, 5505,
4153, 4993, 4167, 7233, 4171, 6721, 4173, 5697, 4179, 6465,
4181, 5441, 4185, 4929, 4195, 6337, 4197, 5313, 4201, 4801,
4209, 4545, 4231, 7201, 4235, 6689, 4237, 5665, 4243, 6433,
4245, 5409, 4249, 4897, 4259, 6305, 4261, 5281, 4265, 4769,
4273, 4513, 4291, 6241, 4293, 5217, 4297, 4705, 4305, 4449,
4359, 7185, 4363, 6673, 4365, 5649, 4371, 6417, 4373, 5393,
4377, 4881, 4387, 6289, 4389, 5265, 4393, 4753, 4401, 4497,
4419, 6225, 4421, 5201, 4425, 4689, 4483, 6193, 4485, 5169,
4489, 4657, 4615, 7177, 4619, 6665, 4621, 5641, 4627, 6409,
4629, 5385, 4633, 4873, 4643, 6281, 4645, 5257, 4649, 4745,
4675, 6217, 4677, 5193, 4739, 6185, 4741, 5161, 4867, 6169,
4869, 5145, 5127, 7173, 5131, 6661, 5133, 5637, 5139, 6405,
5141, 5381, 5155, 6277, 5157, 5253, 5187, 6213, 5251, 6181,
5379, 6165, 5635, 6157, 6151, 7171, 6155, 6659, 6163, 6403,
6179, 6275, 6211, 5189, 4681, 4433, 4321, 3142, 2634, 2386,
2274, 1612, 1364, 1252, 856, 744, 496,
/* Table II 2 of 13. */
3, 6144, 5, 5120, 6, 3072, 9, 4608, 10, 2560,
12, 1536, 17, 4352, 18, 2304, 20, 1280, 24, 768,
33, 4224, 34, 2176, 36, 1152, 40, 640, 48, 384,
65, 4160, 66, 2112, 68, 1088, 72, 576, 80, 320,
96, 192, 129, 4128, 130, 2080, 132, 1056, 136, 544,
144, 288, 257, 4112, 258, 2064, 260, 1040, 264, 528,
513, 4104, 514, 2056, 516, 1032, 1025, 4100, 1026, 2052,
2049, 4098, 4097, 2050, 1028, 520, 272, 160
};
/*===========================================*/
/* Local function prototypes */
/*===========================================*/
static gboolean onecode_is_data_valid (const gchar *data);
static gchar *onecode_encode (const gchar *data);
static lglBarcode *onecode_vectorize (const gchar *code);
static void int104_mult_uint (Int104 *x,
guint y);
static void int104_add_uint (Int104 *x,
guint y);
static void int104_add_uint64 (Int104 *x,
guint64 y);
static guint int104_div_uint (Int104 *x,
guint y);
#ifdef DEBUG
static void int104_print (Int104 *x);
#endif
static unsigned short USPS_MSB_Math_CRC11GenerateFrameCheckSequence( unsigned char *ByteArrayPtr );
/****************************************************************************/
/* Generate new One Code barcode structure from data. */
/****************************************************************************/
lglBarcode *
lgl_barcode_onecode_new (lglBarcodeType type,
gboolean text_flag,
gboolean checksum_flag,
gdouble w,
gdouble h,
const gchar *data)
{
gchar *code;
lglBarcode *bc;
if ( type != LGL_BARCODE_TYPE_ONECODE )
{
g_message ("Invalid barcode type for ONECODE backend.");
return NULL;
}
/* Validate data */
if ( !onecode_is_data_valid (data) )
{
return NULL;
}
/* Now get code string */
code = onecode_encode (data);
if (code == NULL) {
return NULL;
}
/* Now vectorize encoded data. */
bc = onecode_vectorize (code);
g_free (code);
return bc;
}
/*--------------------------------------------------------------------------*/
/* Validate if string is of proper length & contains only valid characters. */
/*--------------------------------------------------------------------------*/
static gboolean
onecode_is_data_valid (const gchar *data)
{
gchar *p;
gint str_length;
if (!data)
{
return FALSE;
}
str_length = strlen (data);
if ( (str_length != 20) &&
(str_length != 25) &&
(str_length != 29) &&
(str_length != 31) )
{
return FALSE;
}
for ( p = (gchar *)data; *p != 0; p++ )
{
if (!g_ascii_isdigit (*p))
{
return FALSE;
}
}
if (data[1] > '4')
{
return FALSE; /* Invalid Barcode Identifier. */
}
return TRUE;
}
/*--------------------------------------------------------------------------*/
/* PRIVATE. Generate string of symbols, representing barcode. */
/*--------------------------------------------------------------------------*/
static gchar *
onecode_encode (const gchar *data)
{
Int104 value = {{0}};
gint i;
guint crc11;
guint codeword[10];
guint character[10];
gint d, a;
GString *code;
/*-----------------------------------------------------------*/
/* Step 1 -- Conversion of Data Fields into Binary Data */
/*-----------------------------------------------------------*/
/* Step 1.a -- Routing Code */
for ( i = 20; data[i] != 0; i++ )
{
int104_mult_uint (&value, 10);
int104_add_uint (&value, data[i] - '0');
}
switch ( i-20 )
{
case 0:
break;
case 5:
int104_add_uint (&value, 1);
break;
case 9:
int104_add_uint (&value, 1);
int104_add_uint (&value, 100000);
break;
case 11:
int104_add_uint (&value, 1);
int104_add_uint (&value, 100000);
int104_add_uint64 (&value, 1000000000);
break;
default:
return NULL; /* Should not happen if length tests passed. */
break;
}
/* Step 1.b -- Tracking Code */
int104_mult_uint (&value, 10);
int104_add_uint (&value, data[0] - '0');
int104_mult_uint (&value, 5);
int104_add_uint (&value, data[1] - '0');
for ( i = 2; i < 20; i++ )
{
int104_mult_uint (&value, 10);
int104_add_uint (&value, data[i] - '0');
}
/*-----------------------------------------------------------*/
/* Step 2 -- Generation of 11-Bit CRC on Binary Data */
/*-----------------------------------------------------------*/
crc11 = USPS_MSB_Math_CRC11GenerateFrameCheckSequence( value.byte );
/*-----------------------------------------------------------*/
/* Step 3 -- Conversion of Binary Data to Codewords */
/*-----------------------------------------------------------*/
codeword[9] = int104_div_uint (&value, 636);
for ( i = 8; i >= 1; i-- )
{
codeword[i] = int104_div_uint (&value, 1365);
}
codeword[0] = int104_div_uint (&value, 659);
/*-----------------------------------------------------------*/
/* Step 4 -- Inserting Additional Information into Codewords */
/*-----------------------------------------------------------*/
codeword[9] *= 2;
codeword[0] += (crc11 & 0x400) ? 659 : 0;
/*-----------------------------------------------------------*/
/* Step 5 -- Conversion from Codewords to Characters */
/*-----------------------------------------------------------*/
for ( i = 0; i < 10; i++ )
{
character[i] = character_table[ codeword[i] ];
if ( crc11 & (1<<i) )
{
character[i] = ~character[i] & 0x1FFF;
}
}
/*-----------------------------------------------------------*/
/* Step 6 -- Conversion from Characters to IMail Barcode */
/*-----------------------------------------------------------*/
code = g_string_new ("");
for ( i = 0; i < 65; i++ )
{
d = (character[ bar_map[i].descender.i ] & bar_map[i].descender.mask) != 0;
a = (character[ bar_map[i].ascender.i ] & bar_map[i].ascender.mask) != 0;
code = g_string_append (code, tdaf_table[ (a<<1) + d ]);
}
return g_string_free (code, FALSE);
}
/*--------------------------------------------------------------------------*/
/* Vectorize encoded data. */
/*--------------------------------------------------------------------------*/
static lglBarcode *
onecode_vectorize (const gchar *code)
{
lglBarcode *bc;
gchar *p;
gdouble x, y, length, width;
bc = lgl_barcode_new ();
/* Now traverse the code string and create a list of lines */
x = ONECODE_HORIZ_MARGIN;
for (p = (gchar *)code; *p != 0; p++)
{
y = ONECODE_VERT_MARGIN;
switch ( *p )
{
case 'T':
y += ONECODE_TRACKER_OFFSET;
length = ONECODE_TRACKER_HEIGHT;
break;
case 'D':
y += ONECODE_DESCENDER_OFFSET;
length = ONECODE_DESCENDER_HEIGHT;
break;
case 'A':
y += ONECODE_ASCENDER_OFFSET;
length = ONECODE_ASCENDER_HEIGHT;
break;
case 'F':
y += ONECODE_FULL_OFFSET;
length = ONECODE_FULL_HEIGHT;
break;
default:
break;
}
width = ONECODE_BAR_WIDTH;
lgl_barcode_add_box (bc, x, y, width, length);
x += ONECODE_BAR_PITCH;
}
bc->width = x + ONECODE_HORIZ_MARGIN;
bc->height = ONECODE_FULL_HEIGHT + 2 * ONECODE_VERT_MARGIN;
return bc;
}
/*--------------------------------------------------------------------------*/
/* Multiply 104 bit integer by unsigned int. */
/*--------------------------------------------------------------------------*/
static void
int104_mult_uint (Int104 *x,
guint y)
{
gint i;
guint64 temp, carry;
carry = 0;
for ( i = 12; i >= 0; i-- )
{
temp = x->byte[i] * y + carry;
x->byte[i] = temp & 0xFF;
carry = temp >> 8;
}
}
/*--------------------------------------------------------------------------*/
/* Add unsigned int to 104 bit integer. */
/*--------------------------------------------------------------------------*/
static void
int104_add_uint (Int104 *x,
guint y)
{
gint i;
guint temp, carry;
carry = 0;
for ( i = 12; i >= 0; i-- )
{
temp = x->byte[i] + (y & 0xFF) + carry;
x->byte[i] = temp & 0xFF;
carry = temp >> 8;
y = y >> 8;
}
}
/*--------------------------------------------------------------------------*/
/* Add unsigned 64 bit integer to 104 bit integer. */
/*--------------------------------------------------------------------------*/
static void
int104_add_uint64 (Int104 *x,
guint64 y)
{
gint i;
guint64 temp, carry;
carry = 0;
for ( i = 12; i >= 0; i-- )
{
temp = x->byte[i] + (y & 0xFF) + carry;
x->byte[i] = temp & 0xFF;
carry = temp >> 8;
y = y >> 8;
}
}
/*--------------------------------------------------------------------------*/
/* Divide 104 bit integer by unsigned int. */
/*--------------------------------------------------------------------------*/
static guint
int104_div_uint (Int104 *x,
guint y)
{
guint carry, tmp, i;
carry = 0;
for ( i = 0; i < 13; i++ )
{
tmp = x->byte[i] + (carry<<8);
x->byte[i] = tmp / y;
carry = tmp % y;
}
return carry;
}
/*--------------------------------------------------------------------------*/
/* Print hex representation of 104 bit integer. (For debugging) */
/*--------------------------------------------------------------------------*/
#ifdef DEBUG
static void
int104_print (Int104 *x)
{
gint i;
for ( i = 0; i < 13; i++ )
{
g_print ("%02x ", x->byte[i] & 0xFF);
}
g_print ("\n");
}
#endif
/***************************************************************************
** USPS_MSB_Math_CRC11GenerateFrameCheckSequence
**
** Inputs:
** ByteAttayPtr is the address of a 13 byte array holding 102 bytes which
** are right justified - ie: the leftmost 2 bits of the first byte do not
** hold data and must be set to zero.
**
** Outputs:
** return unsigned short - 11 bit Frame Check Sequence (right justified)
**
** From Appendix C of USPS publication USPS-B-3200E, 07/08/05.
***************************************************************************/
unsigned short
USPS_MSB_Math_CRC11GenerateFrameCheckSequence( unsigned char *ByteArrayPtr )
{
unsigned short GeneratorPolynomial = 0x0F35;
unsigned short FrameCheckSequence = 0x07FF;
unsigned short Data;
int ByteIndex, Bit;
/* Do most significant byte skipping the 2 most significant bits */
Data = *ByteArrayPtr << 5;
ByteArrayPtr++;
for ( Bit = 2; Bit < 8; Bit++ )
{
if ( (FrameCheckSequence ^ Data) & 0x400 )
{
FrameCheckSequence = (FrameCheckSequence << 1) ^ GeneratorPolynomial;
}
else
{
FrameCheckSequence = (FrameCheckSequence << 1);
}
FrameCheckSequence &= 0x7FF;
Data <<= 1;
}
/* Do rest of the bytes */
for ( ByteIndex = 1; ByteIndex < 13; ByteIndex++ )
{
Data = *ByteArrayPtr << 3;
ByteArrayPtr++;
for ( Bit = 0; Bit < 8; Bit++ )
{
if ( (FrameCheckSequence ^ Data) & 0x0400 )
{
FrameCheckSequence = (FrameCheckSequence << 1) ^ GeneratorPolynomial;
}
else
{
FrameCheckSequence = (FrameCheckSequence << 1);
}
FrameCheckSequence &= 0x7FF;
Data <<= 1;
}
}
return FrameCheckSequence;
}
/*
* Local Variables: -- emacs
* mode: C -- emacs
* c-basic-offset: 8 -- emacs
* tab-width: 8 -- emacs
* indent-tabs-mode: nil -- emacs
* End: -- emacs
*/
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