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1070 lines
29 KiB
C
1070 lines
29 KiB
C
/* pdf417.c - Handles PDF417 stacked symbology */
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/* Zint - A barcode generating program using libpng
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Copyright (C) 2008 Robin Stuart <robin@zint.org.uk>
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Portions Copyright (C) 2004 Grandzebu
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Bug Fixes thanks to KL Chin <klchin@users.sourceforge.net>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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/* This code is adapted from "Code barre PDF 417 / PDF 417 barcode" v2.5.0
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which is Copyright (C) 2004 (Grandzebu).
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The original code can be downloaded from http://grandzebu.net/index.php */
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/* NOTE: symbol->option_1 is used to specify the security level (i.e. control the
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number of check codewords)
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symbol->option_2 is used to adjust the width of the resulting symbol (i.e. the
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number of codeword columns not including row start and end data) */
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/* @(#) $Id: pdf417.c,v 1.21 2010/01/28 17:55:59 hooper114 Exp $ */
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <math.h>
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#ifndef _MSC_VER
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#include <stdint.h>
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#else
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#include <malloc.h>
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#include "ms_stdint.h"
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#endif
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#include "pdf417.h"
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#include "common.h"
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#include "large.h"
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/*
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Three figure numbers in comments give the location of command equivalents in the
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original Visual Basic source code file pdf417.frm
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this code retains some original (French) procedure and variable names to ease conversion */
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/* text mode processing tables */
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static int asciix[95] = { 7, 8, 8, 4, 12, 4, 4, 8, 8, 8, 12, 4, 12, 12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4,
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4, 4, 12, 8, 8, 4, 8, 8, 8, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
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1, 1, 1, 1, 8, 8, 8, 4, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
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2, 2, 2, 2, 8, 8, 8, 8 };
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static int asciiy[95] = { 26, 10, 20, 15, 18, 21, 10, 28, 23, 24, 22, 20, 13, 16, 17, 19, 0, 1, 2, 3,
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4, 5, 6, 7, 8, 9, 14, 0, 1, 23, 2, 25, 3, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15,
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16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 4, 5, 6, 24, 7, 8, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10,
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11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 21, 27, 9 };
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/* Automatic sizing table */
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static int MicroAutosize[56] =
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{ 4, 6, 7, 8, 10, 12, 13, 14, 16, 18, 19, 20, 24, 29, 30, 33, 34, 37, 39, 46, 54, 58, 70, 72, 82, 90, 108, 126,
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1, 14, 2, 7, 3, 25, 8, 16, 5, 17, 9, 6, 10, 11, 28, 12, 19, 13, 29, 20, 30, 21, 22, 31, 23, 32, 33, 34
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};
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int liste[2][1000]; /* global - okay, so I got _almost_ everything local! */
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/* 866 */
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int quelmode(char codeascii)
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{
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int mode = BYT;
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if ((codeascii == '\t') || (codeascii == '\n') || (codeascii == '\r') || ((codeascii >= ' ') && (codeascii <= '~'))) { mode = TEX; }
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else if((codeascii >= '0') && (codeascii <= '9')) { mode = NUM; }
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/* 876 */
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return mode;
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}
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/* 844 */
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void regroupe(int *indexliste)
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{
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int i, j;
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/* bring together same type blocks */
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if(*(indexliste) > 1) {
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i = 1;
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while(i < *(indexliste)) {
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if(liste[1][i - 1] == liste[1][i]) {
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/* bring together */
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liste[0][i - 1] = liste[0][i - 1] + liste[0][i];
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j = i + 1;
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/* decreace the list */
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while(j < *(indexliste)) {
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liste[0][j - 1] = liste[0][j];
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liste[1][j - 1] = liste[1][j];
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j++;
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}
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*(indexliste) = *(indexliste) - 1;
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i--;
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}
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i++;
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}
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}
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/* 865 */
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}
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/* 478 */
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void pdfsmooth(int *indexliste)
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{
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int i, crnt, last, next, length;
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for(i = 0; i < *(indexliste); i++) {
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crnt = liste[1][i];
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length = liste[0][i];
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if(i != 0) { last = liste[1][i - 1]; } else { last = FALSE; }
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if(i != *(indexliste) - 1) { next = liste[1][i + 1]; } else { next = FALSE; }
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if(crnt == NUM) {
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if(i == 0) { /* first block */
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if(*(indexliste) > 1) { /* and there are others */
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if((next == TEX) && (length < 8)) { liste[1][i] = TEX;}
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if((next == BYT) && (length == 1)) { liste[1][i] = BYT; }
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}
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} else {
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if(i == *(indexliste) - 1) { /* last block */
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if((last == TEX) && (length < 7)) { liste[1][i] = TEX; }
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if((last == BYT) && (length == 1)) { liste[1][i] = BYT; }
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} else { /* not first or last block */
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if(((last == BYT) && (next == BYT)) && (length < 4)) { liste[1][i] = BYT; }
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if(((last == BYT) && (next == TEX)) && (length < 4)) { liste[1][i] = TEX; }
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if(((last == TEX) && (next == BYT)) && (length < 5)) { liste[1][i] = TEX; }
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if(((last == TEX) && (next == TEX)) && (length < 8)) { liste[1][i] = TEX; }
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}
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}
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}
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}
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regroupe(indexliste);
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/* 520 */
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for(i = 0; i < *(indexliste); i++) {
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crnt = liste[1][i];
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length = liste[0][i];
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if(i != 0) { last = liste[1][i - 1]; } else { last = FALSE; }
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if(i != *(indexliste) - 1) { next = liste[1][i + 1]; } else { next = FALSE; }
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if((crnt == TEX) && (i > 0)) { /* not the first */
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if(i == *(indexliste) - 1) { /* the last one */
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if((last == BYT) && (length == 1)) { liste[1][i] = BYT; }
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} else { /* not the last one */
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if(((last == BYT) && (next == BYT)) && (length < 5)) { liste[1][i] = BYT; }
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if((((last == BYT) && (next != BYT)) || ((last != BYT) && (next == BYT))) && (length < 3)) {
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liste[1][i] = BYT;
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}
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}
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}
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}
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/* 540 */
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regroupe(indexliste);
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}
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/* 547 */
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void textprocess(int *chainemc, int *mclength, char chaine[], int start, int length, int block)
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{
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int j, indexlistet, curtable, listet[2][5000], chainet[5000], wnet;
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char codeascii;
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codeascii = 0;
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wnet = 0;
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for(j = 0; j < 1000; j++) {
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listet[0][j] = 0;
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}
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/* listet will contain the table numbers and the value of each characters */
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for(indexlistet = 0; indexlistet < length; indexlistet++) {
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codeascii = chaine[start + indexlistet];
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switch(codeascii) {
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case '\t': listet[0][indexlistet] = 12; listet[1][indexlistet] = 12; break;
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case '\n': listet[0][indexlistet] = 8; listet[1][indexlistet] = 15; break;
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case 13: listet[0][indexlistet] = 12; listet[1][indexlistet] = 11; break;
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default: listet[0][indexlistet] = asciix[codeascii - 32];
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listet[1][indexlistet] = asciiy[codeascii - 32]; break;
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}
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}
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/* 570 */
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curtable = 1; /* default table */
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for(j = 0; j < length; j++) {
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if(listet[0][j] & curtable) { /* The character is in the current table */
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chainet[wnet] = listet[1][j];
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wnet++;
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} else { /* Obliged to change table */
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int flag = FALSE; /* True if we change table for only one character */
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if (j == (length - 1)) {
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flag = TRUE;
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} else {
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if(!(listet[0][j] & listet[0][j + 1])) { flag = TRUE; }
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}
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if (flag) { /* we change only one character - look for temporary switch */
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if((listet[0][j] & 1) && (curtable == 2)) { /* T_UPP */
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chainet[wnet] = 27;
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chainet[wnet + 1] = listet[1][j];
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wnet += 2;
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}
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if(listet[0][j] & 8) { /* T_PUN */
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chainet[wnet] = 29;
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chainet[wnet + 1] = listet[1][j];
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wnet += 2;
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}
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if(!(((listet[0][j] & 1) && (curtable == 2)) || (listet[0][j] & 8))) {
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/* No temporary switch available */
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flag = FALSE;
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}
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}
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/* 599 */
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if (!(flag)) {
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int newtable;
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if(j == (length - 1)) {
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newtable = listet[0][j];
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} else {
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if(!(listet[0][j] & listet[0][j + 1])) {
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newtable = listet[0][j];
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} else {
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newtable = listet[0][j] & listet[0][j + 1];
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}
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}
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/* Maintain the first if several tables are possible */
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switch (newtable) {
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case 3:
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case 5:
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case 7:
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case 9:
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case 11:
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case 13:
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case 15:
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newtable = 1; break;
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case 6:
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case 10:
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case 14:
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newtable = 2; break;
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case 12:
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newtable = 4; break;
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}
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/* 619 - select the switch */
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switch (curtable) {
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case 1:
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switch (newtable) {
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case 2: chainet[wnet] = 27; wnet++; break;
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case 4: chainet[wnet] = 28; wnet++; break;
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case 8: chainet[wnet] = 28; wnet++; chainet[wnet] = 25; wnet++; break;
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} break;
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case 2:
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switch (newtable) {
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case 1: chainet[wnet] = 28; wnet++; chainet[wnet] = 28; wnet++; break;
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case 4: chainet[wnet] = 28; wnet++; break;
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case 8: chainet[wnet] = 28; wnet++; chainet[wnet] = 25; wnet++; break;
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} break;
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case 4:
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switch (newtable) {
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case 1: chainet[wnet] = 28; wnet++; break;
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case 2: chainet[wnet] = 27; wnet++; break;
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case 8: chainet[wnet] = 25; wnet++; break;
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} break;
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case 8:
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switch (newtable) {
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case 1: chainet[wnet] = 29; wnet++; break;
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case 2: chainet[wnet] = 29; wnet++; chainet[wnet] = 27; wnet++; break;
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case 4: chainet[wnet] = 29; wnet++; chainet[wnet] = 28; wnet++; break;
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} break;
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}
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curtable = newtable;
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/* 659 - at last we add the character */
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chainet[wnet] = listet[1][j];
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wnet++;
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}
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}
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}
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/* 663 */
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if (wnet & 1) {
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chainet[wnet] = 29;
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wnet++;
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}
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/* Now translate the string chainet into codewords */
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chainemc[*(mclength)] = 900;
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*(mclength) = *(mclength) + 1;
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for(j = 0; j < wnet; j+= 2) {
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int cw_number;
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cw_number = (30 * chainet[j]) + chainet[j + 1];
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chainemc[*(mclength)] = cw_number;
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*(mclength) = *(mclength) + 1;
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}
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}
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/* 671 */
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void byteprocess(int *chainemc, int *mclength, unsigned char chaine[], int start, int length, int block)
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{
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int debug = 0;
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int len = 0;
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unsigned int chunkLen = 0;
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uint64_t mantisa = 0ULL;
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uint64_t total = 0ULL;
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if(debug) printf("\nEntering byte mode at position %d\n", start);
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if(length == 1) {
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chainemc[(*mclength)++] = 913;
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chainemc[(*mclength)++] = chaine[start];
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if(debug) { printf("913 %d\n", chainemc[*mclength - 1]); }
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} else {
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/* select the switch for multiple of 6 bytes */
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if (length % 6 == 0) {
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chainemc[(*mclength)++] = 924;
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if(debug) printf("924 ");
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} else {
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chainemc[(*mclength)++] = 901;
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if(debug) printf("901 ");
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}
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while (len < length)
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{
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chunkLen = length - len;
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if (6 <= chunkLen) /* Take groups of 6 */
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{
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chunkLen = 6;
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len += chunkLen;
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total = 0ULL;
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while (chunkLen--)
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{
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mantisa = chaine[start++];
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total |= mantisa << (uint64_t)(chunkLen * 8ULL);
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}
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chunkLen = 5;
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while (chunkLen--)
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{
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chainemc[*mclength + chunkLen] = (int)(total % 900ULL);
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total /= 900ULL;
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}
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*mclength += 5;
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}
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else /* If it remain a group of less than 6 bytes */
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{
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len += chunkLen;
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while (chunkLen--)
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{
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chainemc[(*mclength)++] = chaine[start++];
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}
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}
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}
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}
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}
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/* 712 */
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void numbprocess(int *chainemc, int *mclength, char chaine[], int start, int length, int block)
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{
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int j, loop, longueur, dummy[100], dumlength, diviseur, nombre;
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char chainemod[50], chainemult[100], temp;
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strcpy(chainemod, "");
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for(loop = 0; loop <= 50; loop++) {
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dummy[loop] = 0;
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}
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chainemc[*(mclength)] = 902;
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*(mclength) = *(mclength) + 1;
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j = 0;
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while(j < length) {
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dumlength = 0;
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strcpy(chainemod, "");
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longueur = length - j;
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if(longueur > 44) { longueur = 44; }
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concat(chainemod, "1");
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for(loop = 1; loop <= longueur; loop++) {
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chainemod[loop] = chaine[start + loop + j - 1];
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}
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chainemod[longueur + 1] = '\0';
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do {
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diviseur = 900;
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/* 877 - gosub Modulo */
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strcpy(chainemult, "");
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nombre = 0;
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while(strlen(chainemod) != 0) {
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nombre *= 10;
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nombre += ctoi(chainemod[0]);
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for(loop = 0; loop < strlen(chainemod); loop++) {
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chainemod[loop] = chainemod[loop + 1];
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}
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if (nombre < diviseur) {
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if (strlen(chainemult) != 0) { concat(chainemult, "0"); }
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} else {
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temp = (nombre / diviseur) + '0';
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chainemult[strlen(chainemult) + 1] = '\0';
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chainemult[strlen(chainemult)] = temp;
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}
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nombre = nombre % diviseur;
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}
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diviseur = nombre;
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/* return to 723 */
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for(loop = dumlength; loop > 0; loop--) {
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dummy[loop] = dummy[loop - 1];
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}
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dummy[0] = diviseur;
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dumlength++;
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strcpy(chainemod, chainemult);
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} while(strlen(chainemult) != 0);
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for(loop = 0; loop < dumlength; loop++) {
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chainemc[*(mclength)] = dummy[loop];
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*(mclength) = *(mclength) + 1;
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}
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j += longueur;
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}
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}
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/* 366 */
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int pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length)
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{
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int i, k, j, indexchaine, indexliste, mode, longueur, loop, mccorrection[520], offset;
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int total, chainemc[2700], mclength, c1, c2, c3, dummy[35], codeerr;
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char codebarre[140], pattern[580];
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int debug = 0;
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codeerr = 0;
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/* 456 */
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indexliste = 0;
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indexchaine = 0;
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mode = quelmode(chaine[indexchaine]);
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for(i = 0; i < 1000; i++) {
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liste[0][i] = 0;
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}
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/* 463 */
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do {
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liste[1][indexliste] = mode;
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while ((liste[1][indexliste] == mode) && (indexchaine < length)) {
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liste[0][indexliste]++;
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indexchaine++;
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mode = quelmode(chaine[indexchaine]);
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}
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indexliste++;
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} while (indexchaine < length);
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/* 474 */
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pdfsmooth(&indexliste);
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if(debug) {
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printf("Initial block pattern:\n");
|
|
for(i = 0; i < indexliste; i++) {
|
|
printf("Len: %d Type: ", liste[0][i]);
|
|
switch(liste[1][i]) {
|
|
case TEX: printf("Text\n"); break;
|
|
case BYT: printf("Byte\n"); break;
|
|
case NUM: printf("Number\n"); break;
|
|
default: printf("ERROR\n"); break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 541 - now compress the data */
|
|
indexchaine = 0;
|
|
mclength = 0;
|
|
if(symbol->output_options & READER_INIT) {
|
|
chainemc[mclength] = 921; /* Reader Initialisation */
|
|
mclength++;
|
|
}
|
|
for(i = 0; i < indexliste; i++) {
|
|
switch(liste[1][i]) {
|
|
case TEX: /* 547 - text mode */
|
|
textprocess(chainemc, &mclength, (char*)chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
case BYT: /* 670 - octet stream mode */
|
|
byteprocess(chainemc, &mclength, chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
case NUM: /* 712 - numeric mode */
|
|
numbprocess(chainemc, &mclength, (char*)chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
}
|
|
indexchaine = indexchaine + liste[0][i];
|
|
}
|
|
|
|
if(debug) {
|
|
printf("\nCompressed data stream:\n");
|
|
for(i = 0; i < mclength; i++) {
|
|
printf("%d ", chainemc[i]);
|
|
}
|
|
printf("\n\n");
|
|
}
|
|
|
|
/* 752 - Now take care of the number of CWs per row */
|
|
if (symbol->option_1 < 0) {
|
|
symbol->option_1 = 6;
|
|
if(mclength <= 863) { symbol->option_1 = 5; }
|
|
if(mclength <= 320) { symbol->option_1 = 4; }
|
|
if(mclength <= 160) { symbol->option_1 = 3; }
|
|
if(mclength <= 40) { symbol->option_1 = 2; }
|
|
}
|
|
k = 1;
|
|
for(loop = 1; loop <= (symbol->option_1 + 1); loop++)
|
|
{
|
|
k *= 2;
|
|
}
|
|
longueur = mclength;
|
|
if(symbol->option_2 > 30) { symbol->option_2 = 30; }
|
|
if(symbol->option_2 < 1) {
|
|
symbol->option_2 = 0.5 + sqrt((longueur + k) / 3.0);
|
|
}
|
|
if(((longueur + k) / symbol->option_2) > 90) {
|
|
/* stop the symbol from becoming too high */
|
|
symbol->option_2 = symbol->option_2 + 1;
|
|
}
|
|
|
|
if(longueur + k > 928) {
|
|
/* Enforce maximum codeword limit */
|
|
return 2;
|
|
}
|
|
|
|
if(((longueur + k) / symbol->option_2) > 90) {
|
|
return 4;
|
|
}
|
|
|
|
/* 781 - Padding calculation */
|
|
longueur = mclength + 1 + k;
|
|
i = 0;
|
|
if ((longueur / symbol->option_2) < 3) {
|
|
i = (symbol->option_2 * 3) - longueur; /* A bar code must have at least three rows */
|
|
} else {
|
|
if((longueur % symbol->option_2) > 0) { i = symbol->option_2 - (longueur % symbol->option_2); }
|
|
}
|
|
/* We add the padding */
|
|
while (i > 0) {
|
|
chainemc[mclength] = 900;
|
|
mclength++;
|
|
i--;
|
|
}
|
|
/* we add the length descriptor */
|
|
for(i = mclength; i > 0; i--) {
|
|
chainemc[i] = chainemc[i - 1];
|
|
}
|
|
chainemc[0] = mclength + 1;
|
|
mclength++;
|
|
|
|
/* 796 - we now take care of the Reed Solomon codes */
|
|
switch(symbol->option_1) {
|
|
case 1: offset = 2; break;
|
|
case 2: offset = 6; break;
|
|
case 3: offset = 14; break;
|
|
case 4: offset = 30; break;
|
|
case 5: offset = 62; break;
|
|
case 6: offset = 126; break;
|
|
case 7: offset = 254; break;
|
|
case 8: offset = 510; break;
|
|
default: offset = 0; break;
|
|
}
|
|
|
|
longueur = mclength;
|
|
for(loop = 0; loop < 520; loop++) {
|
|
mccorrection[loop] = 0;
|
|
}
|
|
total = 0;
|
|
for(i = 0; i < longueur; i++) {
|
|
total = (chainemc[i] + mccorrection[k - 1]) % 929;
|
|
for(j = k - 1; j > 0; j--) {
|
|
mccorrection[j] = (mccorrection[j - 1] + 929 - (total * coefrs[offset + j]) % 929) % 929;
|
|
}
|
|
mccorrection[0] = (929 - (total * coefrs[offset + j]) % 929) % 929;
|
|
}
|
|
|
|
/* we add these codes to the string */
|
|
for(i = k - 1; i >= 0; i--) {
|
|
chainemc[mclength++] = mccorrection[i] ? 929 - mccorrection[i] : 0;
|
|
}
|
|
|
|
/* 818 - The CW string is finished */
|
|
c1 = (mclength / symbol->option_2 - 1) / 3;
|
|
c2 = symbol->option_1 * 3 + (mclength / symbol->option_2 - 1) % 3;
|
|
c3 = symbol->option_2 - 1;
|
|
|
|
/* we now encode each row */
|
|
for(i = 0; i <= (mclength / symbol->option_2) - 1; i++) {
|
|
for(j = 0; j < symbol->option_2 ; j++) {
|
|
dummy[j + 1] = chainemc[i * symbol->option_2 + j];
|
|
}
|
|
k = (i / 3) * 30;
|
|
switch(i % 3) {
|
|
/* follows this pattern from US Patent 5,243,655:
|
|
Row 0: L0 (row #, # of rows) R0 (row #, # of columns)
|
|
Row 1: L1 (row #, security level) R1 (row #, # of rows)
|
|
Row 2: L2 (row #, # of columns) R2 (row #, security level)
|
|
Row 3: L3 (row #, # of rows) R3 (row #, # of columns)
|
|
etc. */
|
|
case 0:
|
|
dummy[0] = k + c1;
|
|
dummy[symbol->option_2 + 1] = k + c3;
|
|
break;
|
|
case 1:
|
|
dummy[0] = k + c2;
|
|
dummy[symbol->option_2 + 1] = k + c1;
|
|
break;
|
|
case 2:
|
|
dummy[0] = k + c3;
|
|
dummy[symbol->option_2 + 1] = k + c2;
|
|
break;
|
|
}
|
|
strcpy(codebarre, "+*"); /* Start with a start char and a separator */
|
|
if(symbol->symbology == BARCODE_PDF417TRUNC) {
|
|
/* truncated - so same as before except knock off the last 5 chars */
|
|
for(j = 0; j <= symbol->option_2; j++) {
|
|
switch(i % 3) {
|
|
case 1: offset = 929; break;
|
|
case 2: offset = 1858; break;
|
|
default: offset = 0; break;
|
|
}
|
|
concat(codebarre, codagemc[offset + dummy[j]]);
|
|
concat(codebarre, "*");
|
|
}
|
|
} else {
|
|
/* normal PDF417 symbol */
|
|
for(j = 0; j <= symbol->option_2 + 1; j++) {
|
|
switch(i % 3) {
|
|
case 1: offset = 929; /* cluster(3) */ break;
|
|
case 2: offset = 1858; /* cluster(6) */ break;
|
|
default: offset = 0; /* cluster(0) */ break;
|
|
}
|
|
concat(codebarre, codagemc[offset + dummy[j]]);
|
|
concat(codebarre, "*");
|
|
}
|
|
concat(codebarre, "-");
|
|
}
|
|
|
|
strcpy(pattern, "");
|
|
for(loop = 0; loop < strlen(codebarre); loop++) {
|
|
lookup(BRSET, PDFttf, codebarre[loop], pattern);
|
|
}
|
|
for(loop = 0; loop < strlen(pattern); loop++) {
|
|
if(pattern[loop] == '1') { set_module(symbol, i, loop); }
|
|
}
|
|
if(symbol->height == 0) {
|
|
symbol->row_height[i] = 3;
|
|
}
|
|
}
|
|
symbol->rows = (mclength / symbol->option_2);
|
|
symbol->width = strlen(pattern);
|
|
|
|
/* 843 */
|
|
return codeerr;
|
|
}
|
|
|
|
/* 345 */
|
|
int pdf417enc(struct zint_symbol *symbol, unsigned char source[], int length)
|
|
{
|
|
int codeerr, error_number;
|
|
|
|
error_number = 0;
|
|
|
|
if((symbol->option_1 < -1) || (symbol->option_1 > 8)) {
|
|
strcpy(symbol->errtxt, "Security value out of range");
|
|
symbol->option_1 = -1;
|
|
error_number = WARN_INVALID_OPTION;
|
|
}
|
|
if((symbol->option_2 < 0) || (symbol->option_2 > 30)) {
|
|
strcpy(symbol->errtxt, "Number of columns out of range");
|
|
symbol->option_2 = 0;
|
|
error_number = WARN_INVALID_OPTION;
|
|
}
|
|
|
|
/* 349 */
|
|
codeerr = pdf417(symbol, source, length);
|
|
|
|
/* 352 */
|
|
if(codeerr != 0) {
|
|
switch(codeerr) {
|
|
case 1:
|
|
strcpy(symbol->errtxt, "No such file or file unreadable");
|
|
error_number = ERROR_INVALID_OPTION;
|
|
break;
|
|
case 2:
|
|
strcpy(symbol->errtxt, "Input string too long");
|
|
error_number = ERROR_TOO_LONG;
|
|
break;
|
|
case 3:
|
|
strcpy(symbol->errtxt, "Number of codewords per row too small");
|
|
error_number = WARN_INVALID_OPTION;
|
|
break;
|
|
case 4:
|
|
strcpy(symbol->errtxt, "Data too long for specified number of columns");
|
|
error_number = ERROR_TOO_LONG;
|
|
break;
|
|
default:
|
|
strcpy(symbol->errtxt, "Something strange happened");
|
|
error_number = ERROR_ENCODING_PROBLEM;
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* 364 */
|
|
return error_number;
|
|
}
|
|
|
|
|
|
int micro_pdf417(struct zint_symbol *symbol, unsigned char chaine[], int length)
|
|
{ /* like PDF417 only much smaller! */
|
|
|
|
int i, k, j, indexchaine, indexliste, mode, longueur, mccorrection[50], offset;
|
|
int total, chainemc[2700], mclength, dummy[5], codeerr;
|
|
char codebarre[100], pattern[580];
|
|
int variant, LeftRAPStart, CentreRAPStart, RightRAPStart, StartCluster;
|
|
int LeftRAP, CentreRAP, RightRAP, Cluster, writer, flip, loop;
|
|
int debug = 0;
|
|
|
|
/* Encoding starts out the same as PDF417, so use the same code */
|
|
codeerr = 0;
|
|
|
|
/* 456 */
|
|
indexliste = 0;
|
|
indexchaine = 0;
|
|
|
|
mode = quelmode(chaine[indexchaine]);
|
|
|
|
for(i = 0; i < 1000; i++) {
|
|
liste[0][i] = 0;
|
|
}
|
|
|
|
/* 463 */
|
|
do {
|
|
liste[1][indexliste] = mode;
|
|
while ((liste[1][indexliste] == mode) && (indexchaine < length)) {
|
|
liste[0][indexliste]++;
|
|
indexchaine++;
|
|
mode = quelmode(chaine[indexchaine]);
|
|
}
|
|
indexliste++;
|
|
} while (indexchaine < length);
|
|
|
|
/* 474 */
|
|
pdfsmooth(&indexliste);
|
|
|
|
if(debug) {
|
|
printf("Initial mapping:\n");
|
|
for(i = 0; i < indexliste; i++) {
|
|
printf("len: %d type: ", liste[0][i]);
|
|
switch(liste[1][i]) {
|
|
case TEX: printf("TEXT\n"); break;
|
|
case BYT: printf("BYTE\n"); break;
|
|
case NUM: printf("NUMBER\n"); break;
|
|
default: printf("*ERROR*\n"); break;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* 541 - now compress the data */
|
|
indexchaine = 0;
|
|
mclength = 0;
|
|
if(symbol->output_options & READER_INIT) {
|
|
chainemc[mclength] = 921; /* Reader Initialisation */
|
|
mclength++;
|
|
}
|
|
for(i = 0; i < indexliste; i++) {
|
|
switch(liste[1][i]) {
|
|
case TEX: /* 547 - text mode */
|
|
textprocess(chainemc, &mclength, (char*)chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
case BYT: /* 670 - octet stream mode */
|
|
byteprocess(chainemc, &mclength, chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
case NUM: /* 712 - numeric mode */
|
|
numbprocess(chainemc, &mclength, (char*)chaine, indexchaine, liste[0][i], i);
|
|
break;
|
|
}
|
|
indexchaine = indexchaine + liste[0][i];
|
|
}
|
|
|
|
/* This is where it all changes! */
|
|
|
|
if(mclength > 126) {
|
|
strcpy(symbol->errtxt, "Input data too long");
|
|
return ERROR_TOO_LONG;
|
|
}
|
|
if(symbol->option_2 > 4) {
|
|
strcpy(symbol->errtxt, "Specified width out of range");
|
|
symbol->option_2 = 0;
|
|
codeerr = WARN_INVALID_OPTION;
|
|
}
|
|
|
|
if(debug) {
|
|
printf("\nEncoded Data Stream:\n");
|
|
for(i = 0; i < mclength; i++) {
|
|
printf("0x%02X ", chainemc[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
/* Now figure out which variant of the symbol to use and load values accordingly */
|
|
|
|
variant = 0;
|
|
|
|
if((symbol->option_2 == 1) && (mclength > 20)) {
|
|
/* the user specified 1 column but the data doesn't fit - go to automatic */
|
|
symbol->option_2 = 0;
|
|
strcpy(symbol->errtxt, "Specified symbol size too small for data");
|
|
codeerr = WARN_INVALID_OPTION;
|
|
}
|
|
|
|
if((symbol->option_2 == 2) && (mclength > 37)) {
|
|
/* the user specified 2 columns but the data doesn't fit - go to automatic */
|
|
symbol->option_2 = 0;
|
|
strcpy(symbol->errtxt, "Specified symbol size too small for data");
|
|
codeerr = WARN_INVALID_OPTION;
|
|
}
|
|
|
|
if((symbol->option_2 == 3) && (mclength > 82)) {
|
|
/* the user specified 3 columns but the data doesn't fit - go to automatic */
|
|
symbol->option_2 = 0;
|
|
strcpy(symbol->errtxt, "Specified symbol size too small for data");
|
|
codeerr = WARN_INVALID_OPTION;
|
|
}
|
|
|
|
if(symbol->option_2 == 1) {
|
|
/* the user specified 1 column and the data does fit */
|
|
variant = 6;
|
|
if(mclength <= 16) { variant = 5; }
|
|
if(mclength <= 12) { variant = 4; }
|
|
if(mclength <= 10) { variant = 3; }
|
|
if(mclength <= 7) { variant = 2; }
|
|
if(mclength <= 4) { variant = 1; }
|
|
}
|
|
|
|
if(symbol->option_2 == 2) {
|
|
/* the user specified 2 columns and the data does fit */
|
|
variant = 13;
|
|
if(mclength <= 33) { variant = 12; }
|
|
if(mclength <= 29) { variant = 11; }
|
|
if(mclength <= 24) { variant = 10; }
|
|
if(mclength <= 19) { variant = 9; }
|
|
if(mclength <= 13) { variant = 8; }
|
|
if(mclength <= 8) { variant = 7; }
|
|
}
|
|
|
|
if(symbol->option_2 == 3) {
|
|
/* the user specified 3 columns and the data does fit */
|
|
variant = 23;
|
|
if(mclength <= 70) { variant = 22; }
|
|
if(mclength <= 58) { variant = 21; }
|
|
if(mclength <= 46) { variant = 20; }
|
|
if(mclength <= 34) { variant = 19; }
|
|
if(mclength <= 24) { variant = 18; }
|
|
if(mclength <= 18) { variant = 17; }
|
|
if(mclength <= 14) { variant = 16; }
|
|
if(mclength <= 10) { variant = 15; }
|
|
if(mclength <= 6) { variant = 14; }
|
|
}
|
|
|
|
if(symbol->option_2 == 4) {
|
|
/* the user specified 4 columns and the data does fit */
|
|
variant = 34;
|
|
if(mclength <= 108) { variant = 33; }
|
|
if(mclength <= 90) { variant = 32; }
|
|
if(mclength <= 72) { variant = 31; }
|
|
if(mclength <= 54) { variant = 30; }
|
|
if(mclength <= 39) { variant = 29; }
|
|
if(mclength <= 30) { variant = 28; }
|
|
if(mclength <= 24) { variant = 27; }
|
|
if(mclength <= 18) { variant = 26; }
|
|
if(mclength <= 12) { variant = 25; }
|
|
if(mclength <= 8) { variant = 24; }
|
|
}
|
|
|
|
if(variant == 0) {
|
|
/* Zint can choose automatically from all available variations */
|
|
for(i = 27; i >= 0; i--) {
|
|
|
|
if(MicroAutosize[i] >= mclength) {
|
|
variant = MicroAutosize[i + 28];
|
|
}
|
|
}
|
|
}
|
|
|
|
/* Now we have the variant we can load the data */
|
|
variant --;
|
|
symbol->option_2 = MicroVariants[variant]; /* columns */
|
|
symbol->rows = MicroVariants[variant + 34]; /* rows */
|
|
k = MicroVariants[variant + 68]; /* number of EC CWs */
|
|
longueur = (symbol->option_2 * symbol->rows) - k; /* number of non-EC CWs */
|
|
i = longueur - mclength; /* amount of padding required */
|
|
offset = MicroVariants[variant + 102]; /* coefficient offset */
|
|
|
|
if(debug) {
|
|
printf("\nChoose symbol size:\n");
|
|
printf("%d columns x %d rows\n", symbol->option_2, symbol->rows);
|
|
printf("%d data codewords (including %d pads), %d ecc codewords\n", longueur, i, k);
|
|
printf("\n");
|
|
}
|
|
|
|
/* We add the padding */
|
|
while (i > 0) {
|
|
chainemc[mclength] = 900;
|
|
mclength++;
|
|
i--;
|
|
}
|
|
|
|
/* Reed-Solomon error correction */
|
|
longueur = mclength;
|
|
for(loop = 0; loop < 50; loop++) {
|
|
mccorrection[loop] = 0;
|
|
}
|
|
total = 0;
|
|
for(i = 0; i < longueur; i++) {
|
|
total = (chainemc[i] + mccorrection[k - 1]) % 929;
|
|
for(j = k - 1; j >= 0; j--) {
|
|
if(j == 0) {
|
|
mccorrection[j] = (929 - (total * Microcoeffs[offset + j]) % 929) % 929;
|
|
} else {
|
|
mccorrection[j] = (mccorrection[j - 1] + 929 - (total * Microcoeffs[offset + j]) % 929) % 929;
|
|
}
|
|
}
|
|
}
|
|
|
|
for(j = 0; j < k; j++) {
|
|
if(mccorrection[j] != 0) { mccorrection[j] = 929 - mccorrection[j]; }
|
|
}
|
|
/* we add these codes to the string */
|
|
for(i = k - 1; i >= 0; i--) {
|
|
chainemc[mclength] = mccorrection[i];
|
|
mclength++;
|
|
}
|
|
|
|
if(debug) {
|
|
printf("Encoded Data Stream with ECC:\n");
|
|
for(i = 0; i < mclength; i++) {
|
|
printf("0x%02X ", chainemc[i]);
|
|
}
|
|
printf("\n");
|
|
}
|
|
|
|
/* Now get the RAP (Row Address Pattern) start values */
|
|
LeftRAPStart = RAPTable[variant];
|
|
CentreRAPStart = RAPTable[variant + 34];
|
|
RightRAPStart = RAPTable[variant + 68];
|
|
StartCluster = RAPTable[variant + 102] / 3;
|
|
|
|
/* That's all values loaded, get on with the encoding */
|
|
|
|
LeftRAP = LeftRAPStart;
|
|
CentreRAP = CentreRAPStart;
|
|
RightRAP = RightRAPStart;
|
|
Cluster = StartCluster; /* Cluster can be 0, 1 or 2 for Cluster(0), Cluster(3) and Cluster(6) */
|
|
|
|
if(debug) printf("\nInternal row representation:\n");
|
|
for(i = 0; i < symbol->rows; i++) {
|
|
if(debug) printf("row %d: ", i);
|
|
strcpy(codebarre, "");
|
|
offset = 929 * Cluster;
|
|
for(j = 0; j < 5; j++) {
|
|
dummy[j] = 0;
|
|
}
|
|
for(j = 0; j < symbol->option_2 ; j++) {
|
|
dummy[j + 1] = chainemc[i * symbol->option_2 + j];
|
|
if(debug) printf("[%d] ", dummy[j + 1]);
|
|
}
|
|
|
|
/* Copy the data into codebarre */
|
|
concat(codebarre, RAPLR[LeftRAP]);
|
|
concat(codebarre, "1");
|
|
concat(codebarre, codagemc[offset + dummy[1]]);
|
|
concat(codebarre, "1");
|
|
if(symbol->option_2 == 3) {
|
|
concat(codebarre, RAPC[CentreRAP]);
|
|
}
|
|
if(symbol->option_2 >= 2) {
|
|
concat(codebarre, "1");
|
|
concat(codebarre, codagemc[offset + dummy[2]]);
|
|
concat(codebarre, "1");
|
|
}
|
|
if(symbol->option_2 == 4) {
|
|
concat(codebarre, RAPC[CentreRAP]);
|
|
}
|
|
if(symbol->option_2 >= 3) {
|
|
concat(codebarre, "1");
|
|
concat(codebarre, codagemc[offset + dummy[3]]);
|
|
concat(codebarre, "1");
|
|
}
|
|
if(symbol->option_2 == 4) {
|
|
concat(codebarre, "1");
|
|
concat(codebarre, codagemc[offset + dummy[4]]);
|
|
concat(codebarre, "1");
|
|
}
|
|
concat(codebarre, RAPLR[RightRAP]);
|
|
concat(codebarre, "1"); /* stop */
|
|
if(debug) printf("%s\n", codebarre);
|
|
|
|
/* Now codebarre is a mixture of letters and numbers */
|
|
|
|
writer = 0;
|
|
flip = 1;
|
|
strcpy(pattern, "");
|
|
for(loop = 0; loop < strlen(codebarre); loop++) {
|
|
if((codebarre[loop] >= '0') && (codebarre[loop] <= '9')) {
|
|
for(k = 0; k < ctoi(codebarre[loop]); k++) {
|
|
if(flip == 0) {
|
|
pattern[writer] = '0';
|
|
} else {
|
|
pattern[writer] = '1';
|
|
}
|
|
writer++;
|
|
}
|
|
pattern[writer] = '\0';
|
|
if(flip == 0) {
|
|
flip = 1;
|
|
} else {
|
|
flip = 0;
|
|
}
|
|
} else {
|
|
lookup(BRSET, PDFttf, codebarre[loop], pattern);
|
|
writer += 5;
|
|
}
|
|
}
|
|
symbol->width = writer;
|
|
|
|
/* so now pattern[] holds the string of '1's and '0's. - copy this to the symbol */
|
|
for(loop = 0; loop < strlen(pattern); loop++) {
|
|
if(pattern[loop] == '1') { set_module(symbol, i, loop); }
|
|
}
|
|
symbol->row_height[i] = 2;
|
|
|
|
/* Set up RAPs and Cluster for next row */
|
|
LeftRAP++;
|
|
CentreRAP++;
|
|
RightRAP++;
|
|
Cluster++;
|
|
|
|
if(LeftRAP == 53) {
|
|
LeftRAP = 1;
|
|
}
|
|
if(CentreRAP == 53) {
|
|
CentreRAP = 1;
|
|
}
|
|
if(RightRAP == 53) {
|
|
RightRAP = 1;
|
|
}
|
|
if(Cluster == 3) {
|
|
Cluster = 0;
|
|
}
|
|
}
|
|
|
|
return codeerr;
|
|
}
|
|
|