mirror of
https://github.com/zint/zint
synced 2024-11-16 20:57:25 +13:00
b015e38da0
composite: clear errtxt when bumping from CC-A -> CC-B -> CC-C composite: CC-C adjustment 53 -> 52 (same as BWIPP) with proper explanation composite: remove unneeded > 11805 length check CODEONE: remove unneeded extended ASCII check in C40 count GS1_128/CODE16K: remove unneeded initial GS1 mode '[' check PDF417: remove unneeded second option_2 > 30 check Document some "Not reached" lines (code coverage) Update bwipp_dump.ps GUI: window/tab height +5 so 2 full lines for composite edit box (Ubuntu) manual: dash -> hyphen, PDF417 "check digit" -> "error correction", DMRE ref tests: further test cases for CODEONE/CODE16K/common/composite/DATAMATRIX/ DOTCODE/gs1/MAXICODE/PDF417/postal/QRCODE
1632 lines
57 KiB
C
1632 lines
57 KiB
C
/* composite.c - Handles GS1 Composite Symbols */
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/*
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libzint - the open source barcode library
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Copyright (C) 2008 - 2021 Robin Stuart <rstuart114@gmail.com>
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Redistribution and use in source and binary forms, with or without
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modification, are permitted provided that the following conditions
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are met:
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1. Redistributions of source code must retain the above copyright
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notice, this list of conditions and the following disclaimer.
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2. Redistributions in binary form must reproduce the above copyright
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notice, this list of conditions and the following disclaimer in the
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documentation and/or other materials provided with the distribution.
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3. Neither the name of the project nor the names of its contributors
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may be used to endorse or promote products derived from this software
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without specific prior written permission.
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
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FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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SUCH DAMAGE.
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*/
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/* vim: set ts=4 sw=4 et : */
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/* The functions "getBit", "init928" and "encode928" are copyright BSI and are
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released with permission under the following terms:
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"Copyright subsists in all BSI publications. BSI also holds the copyright, in the
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UK, of the international standardisation bodies. Except as
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permitted under the Copyright, Designs and Patents Act 1988 no extract may be
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reproduced, stored in a retrieval system or transmitted in any form or by any
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means - electronic, photocopying, recording or otherwise - without prior written
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permission from BSI.
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"This does not preclude the free use, in the course of implementing the standard,
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of necessary details such as symbols, and size, type or grade designations. If these
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details are to be used for any other purpose than implementation then the prior
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written permission of BSI must be obtained."
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The date of publication for these functions is 31 May 2006
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*/
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#include <stdio.h>
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#include <assert.h>
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#include <math.h>
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#ifdef _MSC_VER
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#include <malloc.h>
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#endif
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#include "common.h"
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#include "pdf417.h"
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#include "gs1.h"
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#include "general_field.h"
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#define UINT unsigned short
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#include "composite.h"
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INTERNAL int ean_128_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_mode,
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const int cc_rows);
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INTERNAL int eanx_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
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INTERNAL int ean_leading_zeroes(struct zint_symbol *symbol, const unsigned char source[],
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unsigned char local_source[], int *p_with_addon);
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INTERNAL int rss14_stk_set_height(struct zint_symbol *symbol, const int first_row);
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INTERNAL int rss14_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
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INTERNAL int rsslimited_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
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INTERNAL int rssexpanded_cc(struct zint_symbol *symbol, unsigned char source[], int length, const int cc_rows);
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INTERNAL int rss_date(const unsigned char source[], const int src_posn);
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static int _min(const int first, const int second) {
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if (first <= second)
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return first;
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else
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return second;
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}
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/* gets bit in bitString at bitPos */
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static int getBit(const UINT *bitStr, const int bitPos) {
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return !!(bitStr[bitPos >> 4] & (0x8000 >> (bitPos & 15)));
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}
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/* converts bit string to base 928 values, codeWords[0] is highest order */
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static int encode928(const UINT bitString[], UINT codeWords[], const int bitLng) {
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int i, j, b, cwNdx, cwLng;
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for (cwNdx = cwLng = b = 0; b < bitLng; b += 69, cwNdx += 7) {
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int bitCnt = _min(bitLng - b, 69);
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int cwCnt;
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cwLng += cwCnt = bitCnt / 10 + 1;
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for (i = 0; i < cwCnt; i++)
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codeWords[cwNdx + i] = 0; /* init 0 */
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for (i = 0; i < bitCnt; i++) {
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if (getBit(bitString, b + bitCnt - i - 1)) {
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for (j = 0; j < cwCnt; j++)
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codeWords[cwNdx + j] += pwr928[i][j + 7 - cwCnt];
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}
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}
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for (i = cwCnt - 1; i > 0; i--) {
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/* add "carries" */
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codeWords[cwNdx + i - 1] += codeWords[cwNdx + i] / 928;
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codeWords[cwNdx + i] %= 928;
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}
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}
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return (cwLng);
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}
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/* CC-A 2D component */
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static void cc_a(struct zint_symbol *symbol, const char source[], const int cc_width) {
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int i, segment, bitlen, cwCnt, variant, rows;
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int k, offset, j, total, rsCodeWords[8] = {0};
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int LeftRAPStart, RightRAPStart, CentreRAPStart, StartCluster;
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int LeftRAP, RightRAP, CentreRAP, Cluster;
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int loop;
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UINT codeWords[28] = {0};
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UINT bitStr[13] = {0};
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char pattern[580];
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int bp = 0;
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variant = 0;
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bitlen = (int) strlen(source);
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for (segment = 0; segment < 13; segment++) {
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int strpos = segment * 16;
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if (strpos >= bitlen) {
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break;
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}
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for (i = 0; i < 16 && strpos + i < bitlen; i++) {
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if (source[strpos + i] == '1') {
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bitStr[segment] |= (0x8000 >> i);
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}
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}
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}
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/* encode codeWords from bitStr */
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cwCnt = encode928(bitStr, codeWords, bitlen);
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switch (cc_width) {
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case 2:
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switch (cwCnt) {
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case 6: variant = 0;
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break;
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case 8: variant = 1;
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break;
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case 9: variant = 2;
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break;
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case 11: variant = 3;
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break;
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case 12: variant = 4;
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break;
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case 14: variant = 5;
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break;
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case 17: variant = 6;
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break;
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}
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break;
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case 3:
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switch (cwCnt) {
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case 8: variant = 7;
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break;
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case 10: variant = 8;
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break;
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case 12: variant = 9;
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break;
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case 14: variant = 10;
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break;
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case 17: variant = 11;
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break;
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}
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break;
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case 4:
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switch (cwCnt) {
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case 8: variant = 12;
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break;
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case 11: variant = 13;
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break;
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case 14: variant = 14;
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break;
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case 17: variant = 15;
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break;
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case 20: variant = 16;
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break;
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}
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break;
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}
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rows = ccaVariants[variant];
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k = ccaVariants[17 + variant];
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offset = ccaVariants[34 + variant];
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/* Reed-Solomon error correction */
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for (i = 0; i < cwCnt; i++) {
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total = (codeWords[i] + rsCodeWords[k - 1]) % 929;
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for (j = k - 1; j >= 0; j--) {
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if (j == 0) {
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rsCodeWords[j] = (929 - (total * ccaCoeffs[offset + j]) % 929) % 929;
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} else {
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rsCodeWords[j] = (rsCodeWords[j - 1] + 929 - (total * ccaCoeffs[offset + j]) % 929) % 929;
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}
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}
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}
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for (j = 0; j < k; j++) {
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if (rsCodeWords[j] != 0) {
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rsCodeWords[j] = 929 - rsCodeWords[j];
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}
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}
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for (i = k - 1; i >= 0; i--) {
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codeWords[cwCnt] = rsCodeWords[i];
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cwCnt++;
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}
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/* Place data into table */
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LeftRAPStart = aRAPTable[variant];
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CentreRAPStart = aRAPTable[variant + 17];
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RightRAPStart = aRAPTable[variant + 34];
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StartCluster = aRAPTable[variant + 51] / 3;
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LeftRAP = LeftRAPStart;
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CentreRAP = CentreRAPStart;
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RightRAP = RightRAPStart;
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Cluster = StartCluster; /* Cluster can be 0, 1 or 2 for Cluster(0), Cluster(3) and Cluster(6) */
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for (i = 0; i < rows; i++) {
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bp = 0;
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offset = 929 * Cluster;
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k = i * cc_width;
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/* Copy the data into codebarre */
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if (cc_width != 3) {
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bp = bin_append_posn(rap_side[LeftRAP - 1], 10, pattern, bp);
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}
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bp = bin_append_posn(pdf_bitpattern[offset + codeWords[k]], 16, pattern, bp);
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pattern[bp++] = '0';
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if (cc_width >= 2) {
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if (cc_width == 3) {
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bp = bin_append_posn(rap_centre[CentreRAP - 1], 10, pattern, bp);
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}
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bp = bin_append_posn(pdf_bitpattern[offset + codeWords[k + 1]], 16, pattern, bp);
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pattern[bp++] = '0';
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if (cc_width >= 3) {
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if (cc_width == 4) {
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bp = bin_append_posn(rap_centre[CentreRAP - 1], 10, pattern, bp);
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}
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bp = bin_append_posn(pdf_bitpattern[offset + codeWords[k + 2]], 16, pattern, bp);
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pattern[bp++] = '0';
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if (cc_width == 4) {
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bp = bin_append_posn(pdf_bitpattern[offset + codeWords[k + 3]], 16, pattern, bp);
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pattern[bp++] = '0';
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}
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}
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}
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bp = bin_append_posn(rap_side[RightRAP - 1], 10, pattern, bp);
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pattern[bp++] = '1'; /* stop */
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/* so now pattern[] holds the string of '1's and '0's. - copy this to the symbol */
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for (loop = 0; loop < bp; loop++) {
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if (pattern[loop] == '1') {
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set_module(symbol, i, loop);
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}
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}
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symbol->row_height[i] = 2;
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symbol->rows++;
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/* Set up RAPs and Cluster for next row */
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LeftRAP++;
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CentreRAP++;
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RightRAP++;
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Cluster++;
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if (LeftRAP == 53) {
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LeftRAP = 1;
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}
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if (CentreRAP == 53) {
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CentreRAP = 1;
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}
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if (RightRAP == 53) {
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RightRAP = 1;
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}
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if (Cluster == 3) {
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Cluster = 0;
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}
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}
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symbol->width = bp;
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if (symbol->debug & ZINT_DEBUG_PRINT) {
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printf("CC-A Columns: %d, Rows: %d, Variant: %d, CodeWords: %d\n", cc_width, symbol->rows, variant, cwCnt);
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}
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}
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/* CC-B 2D component */
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static void cc_b(struct zint_symbol *symbol, const char source[], const int cc_width) {
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int length = (int) strlen(source) / 8;
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int i;
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#ifndef _MSC_VER
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unsigned char data_string[length + 3];
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#else
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unsigned char *data_string = (unsigned char *) _alloca(length + 3);
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#endif
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int chainemc[180], mclength;
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int k, j, p, longueur, mccorrection[50] = {0}, offset;
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int total;
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char pattern[580];
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int variant, LeftRAPStart, CentreRAPStart, RightRAPStart, StartCluster;
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int LeftRAP, CentreRAP, RightRAP, Cluster, loop;
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int columns;
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int bp = 0;
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for (i = 0; i < length; i++) {
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int binloc = i * 8;
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data_string[i] = 0;
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for (p = 0; p < 8; p++) {
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if (source[binloc + p] == '1') {
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data_string[i] |= (0x80 >> p);
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}
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}
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}
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mclength = 0;
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/* "the CC-B component shall have codeword 920 in the first symbol character position" (section 9a) */
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chainemc[mclength] = 920;
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mclength++;
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byteprocess(chainemc, &mclength, data_string, 0, length, symbol->debug & ZINT_DEBUG_PRINT);
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/* Now figure out which variant of the symbol to use and load values accordingly */
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variant = 0;
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if (cc_width == 2) {
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if (mclength <= 8) {
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variant = 7;
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} else if (mclength <= 13) {
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variant = 8;
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} else if (mclength <= 19) {
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variant = 9;
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} else if (mclength <= 24) {
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variant = 10;
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} else if (mclength <= 29) {
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variant = 11;
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} else if (mclength <= 33) {
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variant = 12;
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} else {
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variant = 13;
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}
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} else if (cc_width == 3) {
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if (mclength <= 6) {
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variant = 14;
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} else if (mclength <= 10) {
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variant = 15;
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} else if (mclength <= 14) {
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variant = 16;
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} else if (mclength <= 18) {
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variant = 17;
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} else if (mclength <= 24) {
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variant = 18;
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} else if (mclength <= 34) {
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variant = 19;
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} else if (mclength <= 46) {
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variant = 20;
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} else if (mclength <= 58) {
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variant = 21;
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} else if (mclength <= 70) {
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variant = 22;
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} else {
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variant = 23;
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}
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} else if (cc_width == 4) {
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if (mclength <= 8) {
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variant = 24;
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} else if (mclength <= 12) {
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variant = 25;
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} else if (mclength <= 18) {
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variant = 26;
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} else if (mclength <= 24) {
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variant = 27;
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} else if (mclength <= 30) {
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variant = 28;
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} else if (mclength <= 39) {
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variant = 29;
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} else if (mclength <= 54) {
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variant = 30;
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} else if (mclength <= 72) {
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variant = 31;
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} else if (mclength <= 90) {
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variant = 32;
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} else if (mclength <= 108) {
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variant = 33;
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} else {
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variant = 34;
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}
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}
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/* Now we have the variant we can load the data - from here on the same as MicroPDF417 code */
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variant--;
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assert(variant >= 0);
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columns = MicroVariants[variant]; /* columns */
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symbol->rows = MicroVariants[variant + 34]; /* rows */
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k = MicroVariants[variant + 68]; /* number of EC CWs */
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longueur = (columns * symbol->rows) - k; /* number of non-EC CWs */
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i = longueur - mclength; /* amount of padding required */
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offset = MicroVariants[variant + 102]; /* coefficient offset */
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/* Binary input padded to target length so no padding should be necessary */
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while (i > 0) {
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chainemc[mclength] = 900; /* Not reached */
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mclength++;
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i--;
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}
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|
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/* Reed-Solomon error correction */
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longueur = mclength;
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for (i = 0; i < longueur; i++) {
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total = (chainemc[i] + mccorrection[k - 1]) % 929;
|
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for (j = k - 1; j >= 0; j--) {
|
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if (j == 0) {
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mccorrection[j] = (929 - (total * Microcoeffs[offset + j]) % 929) % 929;
|
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} else {
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mccorrection[j] = (mccorrection[j - 1] + 929 - (total * Microcoeffs[offset + j]) % 929) % 929;
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}
|
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}
|
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}
|
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|
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for (j = 0; j < k; j++) {
|
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if (mccorrection[j] != 0) {
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mccorrection[j] = 929 - mccorrection[j];
|
||
}
|
||
}
|
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/* we add these codes to the string */
|
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for (i = k - 1; i >= 0; i--) {
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chainemc[mclength] = mccorrection[i];
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mclength++;
|
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}
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|
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/* Now get the RAP (Row Address Pattern) start values */
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LeftRAPStart = RAPTable[variant];
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CentreRAPStart = RAPTable[variant + 34];
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RightRAPStart = RAPTable[variant + 68];
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StartCluster = RAPTable[variant + 102] / 3;
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/* That's all values loaded, get on with the encoding */
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LeftRAP = LeftRAPStart;
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CentreRAP = CentreRAPStart;
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RightRAP = RightRAPStart;
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Cluster = StartCluster;
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/* Cluster can be 0, 1 or 2 for Cluster(0), Cluster(3) and Cluster(6) */
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|
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for (i = 0; i < symbol->rows; i++) {
|
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bp = 0;
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offset = 929 * Cluster;
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k = i * columns;
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/* Copy the data into codebarre */
|
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bp = bin_append_posn(rap_side[LeftRAP - 1], 10, pattern, bp);
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bp = bin_append_posn(pdf_bitpattern[offset + chainemc[k]], 16, pattern, bp);
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pattern[bp++] = '0';
|
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if (cc_width >= 2) {
|
||
if (cc_width == 3) {
|
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bp = bin_append_posn(rap_centre[CentreRAP - 1], 10, pattern, bp);
|
||
}
|
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bp = bin_append_posn(pdf_bitpattern[offset + chainemc[k + 1]], 16, pattern, bp);
|
||
pattern[bp++] = '0';
|
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if (cc_width >= 3) {
|
||
if (cc_width == 4) {
|
||
bp = bin_append_posn(rap_centre[CentreRAP - 1], 10, pattern, bp);
|
||
}
|
||
bp = bin_append_posn(pdf_bitpattern[offset + chainemc[k + 2]], 16, pattern, bp);
|
||
pattern[bp++] = '0';
|
||
if (cc_width == 4) {
|
||
bp = bin_append_posn(pdf_bitpattern[offset + chainemc[k + 3]], 16, pattern, bp);
|
||
pattern[bp++] = '0';
|
||
}
|
||
}
|
||
}
|
||
bp = bin_append_posn(rap_side[RightRAP - 1], 10, pattern, bp);
|
||
pattern[bp++] = '1'; /* stop */
|
||
|
||
/* so now pattern[] holds the string of '1's and '0's. - copy this to the symbol */
|
||
for (loop = 0; loop < bp; 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;
|
||
}
|
||
}
|
||
symbol->width = bp;
|
||
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
||
printf("CC-B Columns: %d, Rows: %d, Variant: %d, CodeWords: %d\n",
|
||
cc_width, symbol->rows, variant + 1, mclength);
|
||
}
|
||
}
|
||
|
||
/* CC-C 2D component - byte compressed PDF417 */
|
||
static void cc_c(struct zint_symbol *symbol, const char source[], const int cc_width, const int ecc_level) {
|
||
int length = (int) strlen(source) / 8;
|
||
int i, p;
|
||
#ifndef _MSC_VER
|
||
unsigned char data_string[length + 4];
|
||
#else
|
||
unsigned char *data_string = (unsigned char *) _alloca(length + 4);
|
||
#endif
|
||
int chainemc[1000], mclength, k;
|
||
int offset, longueur, loop, total, j, mccorrection[520] = {0};
|
||
int c1, c2, c3, dummy[35];
|
||
char pattern[580];
|
||
int bp = 0;
|
||
|
||
for (i = 0; i < length; i++) {
|
||
int binloc = i * 8;
|
||
|
||
data_string[i] = 0;
|
||
for (p = 0; p < 8; p++) {
|
||
if (source[binloc + p] == '1') {
|
||
data_string[i] |= (0x80 >> p);
|
||
}
|
||
}
|
||
}
|
||
|
||
mclength = 0;
|
||
|
||
chainemc[mclength] = 0; /* space for length descriptor */
|
||
mclength++;
|
||
chainemc[mclength] = 920; /* CC-C identifier */
|
||
mclength++;
|
||
|
||
byteprocess(chainemc, &mclength, data_string, 0, length, symbol->debug & ZINT_DEBUG_PRINT);
|
||
|
||
chainemc[0] = mclength;
|
||
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
||
printf("CC-C Codewords (%d):", mclength);
|
||
for (i = 0; i < mclength; i++) printf(" %d", chainemc[i]);
|
||
printf("\n");
|
||
}
|
||
|
||
k = 1;
|
||
for (i = 1; i <= (ecc_level + 1); i++) {
|
||
k *= 2;
|
||
}
|
||
|
||
/* 796 - we now take care of the Reed Solomon codes */
|
||
switch (ecc_level) {
|
||
case 1: offset = 2; /* Not reached */
|
||
break;
|
||
case 2: offset = 6; /* Min ECC currently used is 2 */
|
||
break;
|
||
case 3: offset = 14;
|
||
break;
|
||
case 4: offset = 30;
|
||
break;
|
||
case 5: offset = 62; /* Max ECC currently used is 5 */
|
||
break;
|
||
case 6: offset = 126; /* Not reached */
|
||
break;
|
||
case 7: offset = 254; /* Not reached */
|
||
break;
|
||
case 8: offset = 510; /* Not reached */
|
||
break;
|
||
default: offset = 0; /* Not reached */
|
||
break;
|
||
}
|
||
|
||
longueur = mclength;
|
||
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 * coefrs[offset + j]) % 929) % 929;
|
||
} else {
|
||
mccorrection[j] = (mccorrection[j - 1] + 929 - (total * coefrs[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++;
|
||
}
|
||
|
||
/* 818 - The CW string is finished */
|
||
symbol->rows = mclength / cc_width;
|
||
c1 = (symbol->rows - 1) / 3;
|
||
c2 = ecc_level * 3 + (symbol->rows - 1) % 3;
|
||
c3 = cc_width - 1;
|
||
|
||
/* we now encode each row */
|
||
for (i = 0; i <= symbol->rows - 1; i++) {
|
||
for (j = 0; j < cc_width; j++) {
|
||
dummy[j + 1] = chainemc[i * cc_width + j];
|
||
}
|
||
k = (i / 3) * 30;
|
||
switch (i % 3) {
|
||
case 0:
|
||
dummy[0] = k + c1;
|
||
dummy[cc_width + 1] = k + c3;
|
||
offset = 0; /* cluster(0) */
|
||
break;
|
||
case 1:
|
||
dummy[0] = k + c2;
|
||
dummy[cc_width + 1] = k + c1;
|
||
offset = 929; /* cluster(3) */
|
||
break;
|
||
case 2:
|
||
dummy[0] = k + c3;
|
||
dummy[cc_width + 1] = k + c2;
|
||
offset = 1858; /* cluster(6) */
|
||
break;
|
||
}
|
||
bp = 0;
|
||
bp = bin_append_posn(0x1FEA8, 17, pattern, bp); /* Row start */
|
||
|
||
for (j = 0; j <= cc_width + 1; j++) {
|
||
bp = bin_append_posn(pdf_bitpattern[offset + dummy[j]], 16, pattern, bp);
|
||
pattern[bp++] = '0';
|
||
}
|
||
bp = bin_append_posn(0x3FA29, 18, pattern, bp); /* Row Stop */
|
||
|
||
for (loop = 0; loop < bp; loop++) {
|
||
if (pattern[loop] == '1') {
|
||
set_module(symbol, i, loop);
|
||
}
|
||
}
|
||
symbol->row_height[i] = 3;
|
||
}
|
||
symbol->width = bp;
|
||
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
||
printf("CC-C Columns: %d, Rows: %d, CodeWords: %d, ECC Level: %d\n",
|
||
cc_width, symbol->rows, mclength, ecc_level);
|
||
}
|
||
}
|
||
|
||
static int calc_padding_cca(const int binary_length, const int cc_width) {
|
||
int target_bitsize = 0;
|
||
|
||
switch (cc_width) {
|
||
case 2:
|
||
if (binary_length <= 59) {
|
||
target_bitsize = 59;
|
||
} else if (binary_length <= 78) {
|
||
target_bitsize = 78;
|
||
} else if (binary_length <= 88) {
|
||
target_bitsize = 88;
|
||
} else if (binary_length <= 108) {
|
||
target_bitsize = 108;
|
||
} else if (binary_length <= 118) {
|
||
target_bitsize = 118;
|
||
} else if (binary_length <= 138) {
|
||
target_bitsize = 138;
|
||
} else if (binary_length <= 167) {
|
||
target_bitsize = 167;
|
||
}
|
||
break;
|
||
case 3:
|
||
if (binary_length <= 78) {
|
||
target_bitsize = 78;
|
||
} else if (binary_length <= 98) {
|
||
target_bitsize = 98;
|
||
} else if (binary_length <= 118) {
|
||
target_bitsize = 118;
|
||
} else if (binary_length <= 138) {
|
||
target_bitsize = 138;
|
||
} else if (binary_length <= 167) {
|
||
target_bitsize = 167;
|
||
}
|
||
break;
|
||
case 4:
|
||
if (binary_length <= 78) {
|
||
target_bitsize = 78;
|
||
} else if (binary_length <= 108) {
|
||
target_bitsize = 108;
|
||
} else if (binary_length <= 138) {
|
||
target_bitsize = 138;
|
||
} else if (binary_length <= 167) {
|
||
target_bitsize = 167;
|
||
} else if (binary_length <= 197) {
|
||
target_bitsize = 197;
|
||
}
|
||
break;
|
||
}
|
||
|
||
return target_bitsize;
|
||
}
|
||
|
||
static int calc_padding_ccb(const int binary_length, const int cc_width) {
|
||
int target_bitsize = 0;
|
||
|
||
switch (cc_width) {
|
||
case 2:
|
||
if (binary_length <= 56) {
|
||
target_bitsize = 56;
|
||
} else if (binary_length <= 104) {
|
||
target_bitsize = 104;
|
||
} else if (binary_length <= 160) {
|
||
target_bitsize = 160;
|
||
} else if (binary_length <= 208) {
|
||
target_bitsize = 208;
|
||
} else if (binary_length <= 256) {
|
||
target_bitsize = 256;
|
||
} else if (binary_length <= 296) {
|
||
target_bitsize = 296;
|
||
} else if (binary_length <= 336) {
|
||
target_bitsize = 336;
|
||
}
|
||
break;
|
||
case 3:
|
||
if (binary_length <= 32) {
|
||
target_bitsize = 32;
|
||
} else if (binary_length <= 72) {
|
||
target_bitsize = 72;
|
||
} else if (binary_length <= 112) {
|
||
target_bitsize = 112;
|
||
} else if (binary_length <= 152) {
|
||
target_bitsize = 152;
|
||
} else if (binary_length <= 208) {
|
||
target_bitsize = 208;
|
||
} else if (binary_length <= 304) {
|
||
target_bitsize = 304;
|
||
} else if (binary_length <= 416) {
|
||
target_bitsize = 416;
|
||
} else if (binary_length <= 536) {
|
||
target_bitsize = 536;
|
||
} else if (binary_length <= 648) {
|
||
target_bitsize = 648;
|
||
} else if (binary_length <= 768) {
|
||
target_bitsize = 768;
|
||
}
|
||
break;
|
||
case 4:
|
||
if (binary_length <= 56) {
|
||
target_bitsize = 56;
|
||
} else if (binary_length <= 96) {
|
||
target_bitsize = 96;
|
||
} else if (binary_length <= 152) {
|
||
target_bitsize = 152;
|
||
} else if (binary_length <= 208) {
|
||
target_bitsize = 208;
|
||
} else if (binary_length <= 264) {
|
||
target_bitsize = 264;
|
||
} else if (binary_length <= 352) {
|
||
target_bitsize = 352;
|
||
} else if (binary_length <= 496) {
|
||
target_bitsize = 496;
|
||
} else if (binary_length <= 672) {
|
||
target_bitsize = 672;
|
||
} else if (binary_length <= 840) {
|
||
target_bitsize = 840;
|
||
} else if (binary_length <= 1016) {
|
||
target_bitsize = 1016;
|
||
} else if (binary_length <= 1184) {
|
||
target_bitsize = 1184;
|
||
}
|
||
break;
|
||
}
|
||
|
||
return target_bitsize;
|
||
}
|
||
|
||
static int calc_padding_ccc(const int binary_length, int *cc_width, const int linear_width, int *ecc) {
|
||
int target_bitsize = 0;
|
||
int byte_length, codewords_used, ecc_level, ecc_codewords, rows;
|
||
int codewords_total, target_codewords, target_bytesize;
|
||
|
||
byte_length = binary_length / 8;
|
||
if (binary_length % 8 != 0) {
|
||
byte_length++;
|
||
}
|
||
|
||
codewords_used = (byte_length / 6) * 5;
|
||
codewords_used += byte_length % 6;
|
||
|
||
/* Recommended minimum ecc levels ISO/IEC 1543:2015 (PDF417) Annex E Table E.1,
|
||
restricted by CC-C codeword max 900 (30 cols * 30 rows), GS1 General Specifications 19.1 5.9.2.3 */
|
||
if (codewords_used <= 40) {
|
||
ecc_level = 2;
|
||
} else if (codewords_used <= 160) {
|
||
ecc_level = 3;
|
||
} else if (codewords_used <= 320) {
|
||
ecc_level = 4;
|
||
} else if (codewords_used <= 833) { /* 900 - 3 - 64 */
|
||
ecc_level = 5;
|
||
} else if (codewords_used <= 865) { /* 900 - 3 - 32 */
|
||
ecc_level = 4; /* Not recommended but allow to meet advertised "up to 2361 digits" (allows max 2372) */
|
||
} else {
|
||
return 0;
|
||
}
|
||
*(ecc) = ecc_level;
|
||
ecc_codewords = 1 << (ecc_level + 1);
|
||
|
||
codewords_used += ecc_codewords;
|
||
codewords_used += 3;
|
||
|
||
/* -52 = 7 left shift (section 12.3 f) + 10 right quiet zone - 17 start + 2x17 row indicators + 18 stop */
|
||
*(cc_width) = (linear_width - 52) / 17;
|
||
if (*(cc_width) > 30) {
|
||
*(cc_width) = 30;
|
||
}
|
||
rows = (int) ceil((double) codewords_used / *(cc_width));
|
||
/* stop the symbol from becoming too high */
|
||
while (rows > 30 && *(cc_width) < 30) {
|
||
*(cc_width) = *(cc_width) + 1;
|
||
rows = (int) ceil((double) codewords_used / *(cc_width));
|
||
}
|
||
|
||
if (rows > 30) { /* Should never happen given `codewords_used` check above (865 / 30 ~ 28.83) */
|
||
return 0; /* Not reached */
|
||
}
|
||
if (rows < 3) {
|
||
rows = 3;
|
||
}
|
||
|
||
codewords_total = *(cc_width) * rows;
|
||
|
||
target_codewords = codewords_total - ecc_codewords;
|
||
target_codewords -= 3;
|
||
|
||
target_bytesize = 6 * (target_codewords / 5);
|
||
target_bytesize += target_codewords % 5;
|
||
|
||
target_bitsize = 8 * target_bytesize;
|
||
|
||
return target_bitsize;
|
||
}
|
||
|
||
/* Handles all data encodation from section 5 of ISO/IEC 24723 */
|
||
static int cc_binary_string(struct zint_symbol *symbol, const unsigned char source[], const int source_len,
|
||
char binary_string[], const int cc_mode, int *cc_width, int *ecc, const int linear_width) {
|
||
int encoding_method, read_posn, alpha_pad;
|
||
int i, j, ai_crop, ai_crop_posn, fnc1_latch;
|
||
int ai90_mode, remainder;
|
||
char last_digit = '\0';
|
||
int mode;
|
||
#ifndef _MSC_VER
|
||
char general_field[source_len + 1];
|
||
#else
|
||
char *general_field = (char *) _alloca(source_len + 1);
|
||
#endif
|
||
int target_bitsize;
|
||
int bp = 0;
|
||
int debug = symbol->debug & ZINT_DEBUG_PRINT;
|
||
|
||
encoding_method = 1;
|
||
read_posn = 0;
|
||
ai_crop = 0;
|
||
ai_crop_posn = -1;
|
||
fnc1_latch = 0;
|
||
alpha_pad = 0;
|
||
*ecc = 0;
|
||
target_bitsize = 0;
|
||
mode = NUMERIC;
|
||
|
||
if ((source[0] == '1') && ((source[1] == '0') || (source[1] == '1') || (source[1] == '7'))) {
|
||
/* Source starts (10), (11) or (17) */
|
||
if (source[1] == '0' || rss_date(source, 2) >= 0) { /* Check date valid if (11) or (17) */
|
||
encoding_method = 2;
|
||
}
|
||
} else if ((source[0] == '9') && (source[1] == '0')) {
|
||
/* Source starts (90) */
|
||
encoding_method = 3;
|
||
}
|
||
|
||
if (encoding_method == 1) {
|
||
binary_string[bp++] = '0';
|
||
if (debug) printf("CC-%c Encodation Method: 0\n", 'A' + (cc_mode - 1));
|
||
|
||
} else if (encoding_method == 2) {
|
||
/* Encoding Method field "10" - date and lot number */
|
||
|
||
bp = bin_append_posn(2, 2, binary_string, bp); /* "10" */
|
||
|
||
if (source[1] == '0') {
|
||
/* No date data */
|
||
bp = bin_append_posn(3, 2, binary_string, bp); /* "11" */
|
||
read_posn = 2;
|
||
} else {
|
||
/* Production Date (11) or Expiration Date (17) */
|
||
|
||
bp = bin_append_posn(rss_date(source, 2), 16, binary_string, bp);
|
||
|
||
if (source[1] == '1') {
|
||
/* Production Date AI 11 */
|
||
binary_string[bp++] = '0';
|
||
} else {
|
||
/* Expiration Date AI 17 */
|
||
binary_string[bp++] = '1';
|
||
}
|
||
read_posn = 8;
|
||
|
||
if ((source[read_posn] == '1') && (source[read_posn + 1] == '0')) {
|
||
/* Followed by AI 10 - strip this from general field */
|
||
read_posn += 2;
|
||
} else if (source[read_posn]) {
|
||
/* ISO/IEC 24723:2010 5.3.1 "If a lot number does not directly follow the date element string,
|
||
a FNC1 is encoded following the date element string ..." */
|
||
fnc1_latch = 1;
|
||
} else {
|
||
/* "... even if no more data follows the date element string" */
|
||
/* So still need FNC1 character but can't do single FNC1 in numeric mode, so insert alphanumeric latch
|
||
"0000" and alphanumeric FNC1 "01111" (this implementation detail taken from BWIPP
|
||
https://github.com/bwipp/postscriptbarcode Copyright (c) 2004-2019 Terry Burton) */
|
||
bp = bin_append_posn(15, 9, binary_string, bp); /* "000001111" */
|
||
/* Note an alphanumeric FNC1 is also a numeric latch, so now in numeric mode */
|
||
}
|
||
}
|
||
|
||
if (debug) {
|
||
printf("CC-%c Encodation Method: 10, Compaction Field: %.*s\n", 'A' + (cc_mode - 1), read_posn, source);
|
||
}
|
||
|
||
} else if (encoding_method == 3) {
|
||
/* Encodation Method field of "11" - AI 90 */
|
||
#ifndef _MSC_VER
|
||
char ninety[source_len + 1];
|
||
#else
|
||
char *ninety = (char *) _alloca(source_len + 1);
|
||
#endif
|
||
int ninety_len, alpha, alphanum, numeric, test1, test2, test3;
|
||
|
||
/* "This encodation method may be used if an element string with an AI
|
||
90 occurs at the start of the data message, and if the data field
|
||
following the two-digit AI 90 starts with an alphanumeric string which
|
||
complies with a specific format." (para 5.3.2) */
|
||
|
||
memset(ninety, 0, source_len + 1);
|
||
i = 0;
|
||
do {
|
||
ninety[i] = source[i + 2];
|
||
i++;
|
||
} while ((source_len > i + 2) && ('[' != source[i + 2]));
|
||
ninety[i] = '\0';
|
||
ninety_len = i;
|
||
|
||
/* Find out if the AI 90 data is alphabetic or numeric or both */
|
||
|
||
alpha = 0;
|
||
alphanum = 0;
|
||
numeric = 0;
|
||
|
||
for (i = 0; i < ninety_len; i++) {
|
||
|
||
if ((ninety[i] >= 'A') && (ninety[i] <= 'Z')) {
|
||
/* Character is alphabetic */
|
||
alpha += 1;
|
||
} else if ((ninety[i] >= '0') && (ninety[i] <= '9')) {
|
||
/* Character is numeric */
|
||
numeric += 1;
|
||
} else {
|
||
alphanum += 1;
|
||
}
|
||
}
|
||
|
||
/* must start with 0, 1, 2 or 3 digits followed by an uppercase character */
|
||
test1 = -1;
|
||
for (i = 3; i >= 0; i--) {
|
||
if ((ninety[i] >= 'A') && (ninety[i] <= 'Z')) {
|
||
test1 = i;
|
||
}
|
||
}
|
||
|
||
test2 = 0;
|
||
for (i = 0; i < test1; i++) {
|
||
if (!((ninety[i] >= '0') && (ninety[i] <= '9'))) {
|
||
test2 = 1;
|
||
}
|
||
}
|
||
|
||
/* leading zeros are not permitted */
|
||
test3 = 0;
|
||
if ((test1 >= 1) && (ninety[0] == '0')) {
|
||
test3 = 1;
|
||
}
|
||
|
||
if ((test1 != -1) && (test2 != 1) && (test3 == 0)) {
|
||
int next_ai_posn;
|
||
char numeric_part[4];
|
||
int numeric_value;
|
||
int table3_letter;
|
||
/* Encodation method "11" can be used */
|
||
bp = bin_append_posn(3, 2, binary_string, bp); /* "11" */
|
||
|
||
numeric -= test1;
|
||
alpha--;
|
||
|
||
/* Decide on numeric, alpha or alphanumeric mode */
|
||
/* Alpha mode is a special mode for AI 90 */
|
||
|
||
if (alphanum == 0 && alpha > numeric) {
|
||
/* Alpha mode */
|
||
bp = bin_append_posn(3, 2, binary_string, bp); /* "11" */
|
||
ai90_mode = 2;
|
||
} else if (alphanum == 0 && alpha == 0) {
|
||
/* Numeric mode */
|
||
bp = bin_append_posn(2, 2, binary_string, bp); /* "10" */
|
||
ai90_mode = 3;
|
||
} else {
|
||
/* Note if first 4 are digits then it would be shorter to go into NUMERIC mode first; not
|
||
implemented */
|
||
/* Alphanumeric mode */
|
||
binary_string[bp++] = '0';
|
||
ai90_mode = 1;
|
||
mode = ALPHANUMERIC;
|
||
}
|
||
|
||
next_ai_posn = 2 + ninety_len;
|
||
|
||
if (next_ai_posn < source_len && source[next_ai_posn] == '[') {
|
||
/* There are more AIs afterwards */
|
||
if (next_ai_posn + 2 < source_len
|
||
&& (source[next_ai_posn + 1] == '2') && (source[next_ai_posn + 2] == '1')) {
|
||
/* AI 21 follows */
|
||
ai_crop = 1;
|
||
} else if (next_ai_posn + 4 < source_len
|
||
&& (source[next_ai_posn + 1] == '8') && (source[next_ai_posn + 2] == '0')
|
||
&& (source[next_ai_posn + 3] == '0') && (source[next_ai_posn + 4] == '4')) {
|
||
/* AI 8004 follows */
|
||
ai_crop = 3;
|
||
}
|
||
}
|
||
|
||
switch (ai_crop) {
|
||
case 0: binary_string[bp++] = '0';
|
||
break;
|
||
case 1: bp = bin_append_posn(2, 2, binary_string, bp); /* "10" */
|
||
ai_crop_posn = next_ai_posn + 1;
|
||
break;
|
||
case 3: bp = bin_append_posn(3, 2, binary_string, bp); /* "11" */
|
||
ai_crop_posn = next_ai_posn + 1;
|
||
break;
|
||
}
|
||
|
||
if (test1 == 0) {
|
||
strcpy(numeric_part, "0");
|
||
} else {
|
||
for (i = 0; i < test1; i++) {
|
||
numeric_part[i] = ninety[i];
|
||
}
|
||
numeric_part[i] = '\0';
|
||
}
|
||
|
||
numeric_value = atoi(numeric_part);
|
||
|
||
table3_letter = -1;
|
||
if (numeric_value < 31) {
|
||
table3_letter = posn("BDHIJKLNPQRSTVWZ", ninety[test1]);
|
||
}
|
||
|
||
if (table3_letter != -1) {
|
||
/* Encoding can be done according to 5.3.2 c) 2) */
|
||
/* five bit binary string representing value before letter */
|
||
bp = bin_append_posn(numeric_value, 5, binary_string, bp);
|
||
|
||
/* followed by four bit representation of letter from Table 3 */
|
||
bp = bin_append_posn(table3_letter, 4, binary_string, bp);
|
||
} else {
|
||
/* Encoding is done according to 5.3.2 c) 3) */
|
||
bp = bin_append_posn(31, 5, binary_string, bp);
|
||
/* ten bit representation of number */
|
||
bp = bin_append_posn(numeric_value, 10, binary_string, bp);
|
||
|
||
/* five bit representation of ASCII character */
|
||
bp = bin_append_posn(ninety[test1] - 65, 5, binary_string, bp);
|
||
}
|
||
|
||
read_posn = test1 + 3;
|
||
|
||
/* Do Alpha mode encoding of the rest of the AI 90 data field here */
|
||
if (ai90_mode == 2) {
|
||
/* Alpha encodation (section 5.3.3) */
|
||
do {
|
||
if ((source[read_posn] >= 'A') && (source[read_posn] <= 'Z')) {
|
||
bp = bin_append_posn(source[read_posn] - 65, 5, binary_string, bp);
|
||
|
||
} else if ((source[read_posn] >= '0') && (source[read_posn] <= '9')) {
|
||
bp = bin_append_posn(source[read_posn] + 4, 6, binary_string, bp);
|
||
|
||
} else if (source[read_posn] == '[') {
|
||
bp = bin_append_posn(31, 5, binary_string, bp);
|
||
}
|
||
|
||
read_posn++;
|
||
} while ((source[read_posn - 1] != '[') && (source[read_posn - 1] != '\0'));
|
||
alpha_pad = 1; /* This is overwritten if a general field is encoded */
|
||
}
|
||
|
||
if (debug) {
|
||
printf("CC-%c Encodation Method: 11, Compaction Field: %.*s, Binary: %.*s (%d)\n",
|
||
'A' + (cc_mode - 1), read_posn, source, bp, binary_string, bp);
|
||
}
|
||
} else {
|
||
/* Use general field encodation instead */
|
||
binary_string[bp++] = '0';
|
||
read_posn = 0;
|
||
if (debug) printf("CC-%c Encodation Method: 0\n", 'A' + (cc_mode - 1));
|
||
}
|
||
}
|
||
|
||
/* The compressed data field has been processed if appropriate - the
|
||
rest of the data (if any) goes into a general-purpose data compaction field */
|
||
|
||
j = 0;
|
||
if (fnc1_latch == 1) {
|
||
/* Encodation method "10" has been used but it is not followed by
|
||
AI 10, so a FNC1 character needs to be added */
|
||
general_field[j] = '[';
|
||
j++;
|
||
}
|
||
|
||
for (i = read_posn; i < source_len; i++) {
|
||
/* Skip "[21" or "[8004" AIs if encodation method "11" used */
|
||
if (i == ai_crop_posn) {
|
||
i += ai_crop;
|
||
} else {
|
||
general_field[j] = source[i];
|
||
j++;
|
||
}
|
||
}
|
||
general_field[j] = '\0';
|
||
|
||
if (debug) {
|
||
printf("Mode %s, General Field: %.40s%s\n",
|
||
mode == NUMERIC ? "NUMERIC" : mode == ALPHANUMERIC ? "ALPHANUMERIC" : "ISO646",
|
||
general_field, j > 40 ? "..." : "");
|
||
}
|
||
|
||
if (j != 0) { /* If general field not empty */
|
||
alpha_pad = 0;
|
||
|
||
if (!general_field_encode(general_field, j, &mode, &last_digit, binary_string, &bp)) {
|
||
/* Invalid character in input data */
|
||
strcpy(symbol->errtxt, "441: Invalid character in input data");
|
||
return ZINT_ERROR_INVALID_DATA;
|
||
}
|
||
}
|
||
|
||
switch (cc_mode) {
|
||
case 1:
|
||
target_bitsize = calc_padding_cca(bp, *(cc_width));
|
||
break;
|
||
case 2:
|
||
target_bitsize = calc_padding_ccb(bp, *(cc_width));
|
||
break;
|
||
case 3:
|
||
target_bitsize = calc_padding_ccc(bp, cc_width, linear_width, ecc);
|
||
break;
|
||
}
|
||
|
||
if (target_bitsize == 0) {
|
||
strcpy(symbol->errtxt, "442: Input too long for selected 2D component");
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
|
||
remainder = target_bitsize - bp;
|
||
|
||
if (last_digit) {
|
||
/* There is still one more numeric digit to encode */
|
||
|
||
if ((remainder >= 4) && (remainder <= 6)) {
|
||
/* ISO/IEC 24723:2010 5.4.1 c) 2) "If four to six bits remain, add 1 to the digit value and encode the
|
||
result in the next four bits. ..." */
|
||
bp = bin_append_posn(ctoi(last_digit) + 1, 4, binary_string, bp);
|
||
if (remainder > 4) {
|
||
/* "... The fifth and sixth bits, if present, shall be “0”s." (Covered by adding truncated
|
||
alphanumeric latch below but do explicitly anyway) */
|
||
bp = bin_append_posn(0, remainder - 4, binary_string, bp);
|
||
}
|
||
} else {
|
||
bp = bin_append_posn((11 * ctoi(last_digit)) + 18, 7, binary_string, bp);
|
||
/* This may push the symbol up to the next size */
|
||
}
|
||
}
|
||
|
||
switch (cc_mode) {
|
||
case 1:
|
||
target_bitsize = calc_padding_cca(bp, *(cc_width));
|
||
break;
|
||
case 2:
|
||
target_bitsize = calc_padding_ccb(bp, *(cc_width));
|
||
break;
|
||
case 3:
|
||
target_bitsize = calc_padding_ccc(bp, cc_width, linear_width, ecc);
|
||
break;
|
||
}
|
||
|
||
if (target_bitsize == 0) {
|
||
strcpy(symbol->errtxt, "444: Input too long for selected 2D component");
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
|
||
if (bp < target_bitsize) {
|
||
/* Now add padding to binary string */
|
||
if (alpha_pad == 1) {
|
||
bp = bin_append_posn(31, 5, binary_string, bp); /* "11111" */
|
||
/* Extra FNC1 character required after Alpha encodation (section 5.3.3) */
|
||
}
|
||
|
||
if (mode == NUMERIC) {
|
||
bp = bin_append_posn(0, 4, binary_string, bp); /* "0000" */
|
||
}
|
||
|
||
while (bp < target_bitsize) {
|
||
bp = bin_append_posn(4, 5, binary_string, bp); /* "00100" */
|
||
}
|
||
}
|
||
binary_string[target_bitsize] = '\0';
|
||
|
||
if (debug) {
|
||
printf("ECC: %d, CC width %d\n", *ecc, *cc_width);
|
||
printf("Binary: %s (%d)\n", binary_string, target_bitsize);
|
||
}
|
||
|
||
return 0;
|
||
}
|
||
|
||
static int linear_dummy_run(int input_mode, unsigned char *source, const int length, char *errtxt) {
|
||
struct zint_symbol *dummy;
|
||
int error_number;
|
||
int linear_width;
|
||
|
||
dummy = ZBarcode_Create();
|
||
dummy->symbology = BARCODE_GS1_128_CC;
|
||
dummy->input_mode = input_mode;
|
||
error_number = ean_128_cc(dummy, source, length, 3 /*cc_mode*/, 0 /*cc_rows*/);
|
||
linear_width = dummy->width;
|
||
if (error_number >= ZINT_ERROR) {
|
||
strcpy(errtxt, dummy->errtxt);
|
||
}
|
||
ZBarcode_Delete(dummy);
|
||
|
||
if (error_number >= ZINT_ERROR) {
|
||
return 0;
|
||
}
|
||
return linear_width;
|
||
}
|
||
|
||
static const char in_linear_comp[] = " in linear component";
|
||
|
||
INTERNAL int composite(struct zint_symbol *symbol, unsigned char source[], int length) {
|
||
int error_number, warn_number = 0, cc_mode, cc_width = 0, ecc_level = 0;
|
||
int j, i, k;
|
||
/* Allow for 8 bits + 5-bit latch per char + 1000 bits overhead/padding */
|
||
unsigned int bs = 13 * length + 1000 + 1;
|
||
#ifndef _MSC_VER
|
||
char binary_string[bs];
|
||
#else
|
||
char *binary_string = (char *) _alloca(bs);
|
||
#endif
|
||
unsigned int pri_len;
|
||
struct zint_symbol *linear;
|
||
int top_shift, bottom_shift;
|
||
int linear_width = 0;
|
||
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) printf("Reduced length: %d\n", length);
|
||
|
||
/* Perform sanity checks on input options first */
|
||
error_number = 0;
|
||
pri_len = (int) strlen(symbol->primary);
|
||
if (pri_len == 0) {
|
||
strcpy(symbol->errtxt, "445: No primary (linear) message in 2D composite");
|
||
return ZINT_ERROR_INVALID_OPTION;
|
||
}
|
||
|
||
if (length > 2990) {
|
||
strcpy(symbol->errtxt, "446: 2D component input data too long");
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
|
||
cc_mode = symbol->option_1;
|
||
if ((cc_mode == 3) && (symbol->symbology != BARCODE_GS1_128_CC)) {
|
||
/* CC-C can only be used with a GS1-128 linear part */
|
||
strcpy(symbol->errtxt, "447: Invalid mode (CC-C only valid with GS1-128 linear component)");
|
||
return ZINT_ERROR_INVALID_OPTION;
|
||
}
|
||
|
||
if (symbol->symbology == BARCODE_GS1_128_CC) {
|
||
/* Do a test run of encoding the linear component to establish its width */
|
||
linear_width = linear_dummy_run(symbol->input_mode, (unsigned char *) symbol->primary, pri_len,
|
||
symbol->errtxt);
|
||
if (linear_width == 0) {
|
||
if (strlen(symbol->errtxt) + strlen(in_linear_comp) < sizeof(symbol->errtxt)) {
|
||
strcat(symbol->errtxt, in_linear_comp);
|
||
}
|
||
return ZINT_ERROR_INVALID_DATA;
|
||
}
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
||
printf("GS1-128 linear width: %d\n", linear_width);
|
||
}
|
||
}
|
||
|
||
switch (symbol->symbology) {
|
||
/* Determine width of 2D component according to ISO/IEC 24723 Table 1 */
|
||
case BARCODE_EANX_CC:
|
||
if (pri_len < 20) {
|
||
int padded_pri_len;
|
||
int with_addon;
|
||
unsigned char padded_pri[21];
|
||
padded_pri[0] = '\0';
|
||
if (!ean_leading_zeroes(symbol, (unsigned char *) symbol->primary, padded_pri, &with_addon)) {
|
||
sprintf(symbol->errtxt, "448: Input too long (%s) in linear component",
|
||
with_addon ? "5 character maximum for add-on" : "13 character maximum");
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
padded_pri_len = (int) ustrlen(padded_pri);
|
||
if (padded_pri_len <= 7) { /* EAN-8 */
|
||
cc_width = 3;
|
||
} else {
|
||
switch (padded_pri_len) {
|
||
case 10: /* EAN-8 + 2 */
|
||
cc_width = 3;
|
||
break;
|
||
case 13: /* EAN-13 CHK or EAN-8 + 5 */
|
||
cc_width = with_addon ? 3 : 4;
|
||
break;
|
||
case 12: /* EAN-13 */
|
||
case 15: /* EAN-13 + 2 */
|
||
case 16: /* EAN-13 CHK + 2 */
|
||
case 18: /* EAN-13 + 5 */
|
||
case 19: /* EAN-13 CHK + 5 */
|
||
cc_width = 4;
|
||
break;
|
||
}
|
||
}
|
||
}
|
||
if (cc_width == 0) {
|
||
strcpy(symbol->errtxt, "449: Input wrong length in linear component");
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
break;
|
||
case BARCODE_GS1_128_CC: cc_width = 4;
|
||
break;
|
||
case BARCODE_DBAR_OMN_CC: cc_width = 4;
|
||
break;
|
||
case BARCODE_DBAR_LTD_CC: cc_width = 3;
|
||
break;
|
||
case BARCODE_DBAR_EXP_CC: cc_width = 4;
|
||
break;
|
||
case BARCODE_UPCA_CC: cc_width = 4;
|
||
break;
|
||
case BARCODE_UPCE_CC: cc_width = 2;
|
||
break;
|
||
case BARCODE_DBAR_STK_CC: cc_width = 2;
|
||
break;
|
||
case BARCODE_DBAR_OMNSTK_CC: cc_width = 2;
|
||
break;
|
||
case BARCODE_DBAR_EXPSTK_CC: cc_width = 4;
|
||
break;
|
||
}
|
||
|
||
if (cc_mode < 1 || cc_mode > 3) {
|
||
cc_mode = 1;
|
||
}
|
||
|
||
if (cc_mode == 1) {
|
||
i = cc_binary_string(symbol, source, length, binary_string, cc_mode, &cc_width, &ecc_level, linear_width);
|
||
if (i == ZINT_ERROR_TOO_LONG) {
|
||
symbol->errtxt[0] = '\0'; /* Unset error text */
|
||
cc_mode = 2;
|
||
} else if (i != 0) {
|
||
return i;
|
||
}
|
||
}
|
||
|
||
if (cc_mode == 2) {
|
||
/* If the data didn't fit into CC-A it is recalculated for CC-B */
|
||
i = cc_binary_string(symbol, source, length, binary_string, cc_mode, &cc_width, &ecc_level, linear_width);
|
||
if (i == ZINT_ERROR_TOO_LONG) {
|
||
if (symbol->symbology != BARCODE_GS1_128_CC) {
|
||
return ZINT_ERROR_TOO_LONG;
|
||
}
|
||
symbol->errtxt[0] = '\0'; /* Unset error text */
|
||
cc_mode = 3;
|
||
} else if (i != 0) {
|
||
return i;
|
||
}
|
||
}
|
||
|
||
if (cc_mode == 3) {
|
||
/* If the data didn't fit in CC-B (and linear part is GS1-128) it is recalculated for CC-C */
|
||
i = cc_binary_string(symbol, source, length, binary_string, cc_mode, &cc_width, &ecc_level, linear_width);
|
||
if (i != 0) {
|
||
return i;
|
||
}
|
||
}
|
||
|
||
switch (cc_mode) {
|
||
/* Note that ecc_level is only relevant to CC-C */
|
||
case 1: cc_a(symbol, binary_string, cc_width);
|
||
break;
|
||
case 2: cc_b(symbol, binary_string, cc_width);
|
||
break;
|
||
case 3: cc_c(symbol, binary_string, cc_width, ecc_level);
|
||
break;
|
||
}
|
||
|
||
/* 2D component done, now calculate linear component */
|
||
linear = ZBarcode_Create(); /* Symbol contains the 2D component and Linear contains the rest */
|
||
|
||
linear->symbology = symbol->symbology;
|
||
linear->input_mode = symbol->input_mode;
|
||
linear->option_2 = symbol->option_2;
|
||
/* If symbol->height given minimum row height will be returned, else default height */
|
||
linear->height = symbol->height;
|
||
linear->debug = symbol->debug;
|
||
|
||
if (linear->symbology != BARCODE_GS1_128_CC) {
|
||
/* Set the "component linkage" flag in the linear component */
|
||
linear->option_1 = 2;
|
||
}
|
||
|
||
switch (symbol->symbology) {
|
||
case BARCODE_EANX_CC:
|
||
error_number = eanx_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_GS1_128_CC:
|
||
/* GS1-128 needs to know which type of 2D component is used */
|
||
error_number = ean_128_cc(linear, (unsigned char *) symbol->primary, pri_len, cc_mode, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_OMN_CC:
|
||
error_number = rss14_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_LTD_CC:
|
||
error_number = rsslimited_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_EXP_CC:
|
||
error_number = rssexpanded_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_UPCA_CC:
|
||
error_number = eanx_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_UPCE_CC:
|
||
error_number = eanx_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_STK_CC:
|
||
error_number = rss14_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_OMNSTK_CC:
|
||
error_number = rss14_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
case BARCODE_DBAR_EXPSTK_CC:
|
||
error_number = rssexpanded_cc(linear, (unsigned char *) symbol->primary, pri_len, symbol->rows);
|
||
break;
|
||
}
|
||
|
||
if (error_number) {
|
||
strcpy(symbol->errtxt, linear->errtxt);
|
||
if (strlen(symbol->errtxt) + strlen(in_linear_comp) < sizeof(symbol->errtxt)) {
|
||
strcat(symbol->errtxt, in_linear_comp);
|
||
}
|
||
if (error_number >= ZINT_ERROR) {
|
||
ZBarcode_Delete(linear);
|
||
return error_number;
|
||
}
|
||
}
|
||
|
||
/* Merge the linear component with the 2D component */
|
||
|
||
top_shift = 0;
|
||
bottom_shift = 0;
|
||
|
||
switch (symbol->symbology) {
|
||
/* Determine horizontal alignment (according to section 12.3) */
|
||
case BARCODE_EANX_CC:
|
||
switch (ustrlen(linear->text)) { /* Use zero-padded length */
|
||
case 8: /* EAN-8 */
|
||
case 11: /* EAN-8 + 2 */
|
||
case 14: /* EAN-8 + 5 */
|
||
if (cc_mode == 1) {
|
||
bottom_shift = 3;
|
||
} else {
|
||
bottom_shift = 13;
|
||
}
|
||
break;
|
||
case 13: /* EAN-13 */
|
||
case 16: /* EAN-13 + 2 */
|
||
case 19: /* EAN-13 + 5 */
|
||
bottom_shift = 2;
|
||
break;
|
||
}
|
||
break;
|
||
case BARCODE_GS1_128_CC: if (cc_mode == 3) {
|
||
bottom_shift = 7; /* ISO/IEC 24723:2010 12.3 f) */
|
||
} else {
|
||
/* ISO/IEC 24723:2010 12.3 g) "GS1-128 components linked to the right quiet zone of the CC-A or CC-B:
|
||
the CC-A or CC-B component is aligned with the last space module of one of the rightmost symbol
|
||
characters of the linear component. To calculate the target Code 128 symbol character position for
|
||
alignment, number the positions from right to left (0 is the Stop character, 1 is the Check
|
||
character, etc.), and then Position = (total number of Code 128 symbol characters – 9) div 2"
|
||
*/
|
||
int num_symbols = (linear_width - 2) / 11;
|
||
int position = (num_symbols - 9) / 2;
|
||
/* Less 1 to align with last space module */
|
||
int calc_shift = linear->width - position * 11 - 1 - symbol->width;
|
||
if (position) {
|
||
calc_shift -= 2; /* Less additional stop modules */
|
||
}
|
||
if (calc_shift > 0) {
|
||
top_shift = calc_shift;
|
||
} else if (calc_shift < 0) {
|
||
bottom_shift = -calc_shift;
|
||
}
|
||
}
|
||
break;
|
||
case BARCODE_DBAR_OMN_CC: bottom_shift = 4;
|
||
break;
|
||
case BARCODE_DBAR_LTD_CC:
|
||
if (cc_mode == 1) {
|
||
top_shift = 1;
|
||
} else {
|
||
bottom_shift = 9;
|
||
}
|
||
break;
|
||
case BARCODE_DBAR_EXP_CC: k = 1;
|
||
while ((!(module_is_set(linear, 1, k - 1))) && module_is_set(linear, 1, k)) {
|
||
k++;
|
||
}
|
||
top_shift = k;
|
||
break;
|
||
case BARCODE_UPCA_CC: bottom_shift = 2;
|
||
break;
|
||
case BARCODE_UPCE_CC: bottom_shift = 2;
|
||
break;
|
||
case BARCODE_DBAR_STK_CC: top_shift = 1;
|
||
break;
|
||
case BARCODE_DBAR_OMNSTK_CC: top_shift = 1;
|
||
break;
|
||
case BARCODE_DBAR_EXPSTK_CC: k = 1;
|
||
while ((!(module_is_set(linear, 1, k - 1))) && module_is_set(linear, 1, k)) {
|
||
k++;
|
||
}
|
||
top_shift = k;
|
||
break;
|
||
}
|
||
|
||
if (symbol->debug & ZINT_DEBUG_PRINT) {
|
||
printf("Top shift: %d, Bottom shift: %d\n", top_shift, bottom_shift);
|
||
}
|
||
|
||
if (top_shift != 0) {
|
||
/* Move the 2D component of the symbol horizontally */
|
||
for (i = 0; i <= symbol->rows; i++) {
|
||
for (j = (symbol->width + top_shift); j >= top_shift; j--) {
|
||
if (module_is_set(symbol, i, j - top_shift)) {
|
||
set_module(symbol, i, j);
|
||
} else {
|
||
unset_module(symbol, i, j);
|
||
}
|
||
}
|
||
for (j = 0; j < top_shift; j++) {
|
||
unset_module(symbol, i, j);
|
||
}
|
||
}
|
||
}
|
||
|
||
/* Merge linear and 2D components into one structure */
|
||
for (i = 0; i <= linear->rows; i++) {
|
||
symbol->row_height[symbol->rows + i] = linear->row_height[i];
|
||
for (j = 0; j <= linear->width; j++) {
|
||
if (module_is_set(linear, i, j)) {
|
||
set_module(symbol, i + symbol->rows, j + bottom_shift);
|
||
} else {
|
||
unset_module(symbol, i + symbol->rows, j + bottom_shift);
|
||
}
|
||
}
|
||
}
|
||
if ((linear->width + bottom_shift) > symbol->width + top_shift) {
|
||
symbol->width = linear->width + bottom_shift;
|
||
} else if ((symbol->width + top_shift) > linear->width + bottom_shift) {
|
||
symbol->width += top_shift;
|
||
}
|
||
symbol->rows += linear->rows;
|
||
#ifdef COMPLIANT_HEIGHTS
|
||
if (symbol->symbology == BARCODE_DBAR_STK_CC) {
|
||
/* Databar Stacked needs special treatment due to asymmetric rows */
|
||
warn_number = rss14_stk_set_height(symbol, symbol->rows - linear->rows + 1 /*first_row*/);
|
||
} else {
|
||
/* If symbol->height given then min row height was returned, else default height */
|
||
warn_number = set_height(symbol, symbol->height ? linear->height : 0.0f,
|
||
symbol->height ? 0.0f : linear->height, 0.0f, 0 /*no_errtxt*/);
|
||
}
|
||
#else
|
||
if (symbol->symbology == BARCODE_DBAR_STK_CC) {
|
||
(void) rss14_stk_set_height(symbol, symbol->rows - linear->rows + 1 /*first_row*/);
|
||
} else {
|
||
(void) set_height(symbol, symbol->height ? linear->height : 0.0f, symbol->height ? 0.0f : linear->height,
|
||
0.0f, 1 /*no_errtxt*/);
|
||
}
|
||
#endif
|
||
|
||
ustrcpy(symbol->text, linear->text);
|
||
|
||
ZBarcode_Delete(linear);
|
||
|
||
return error_number ? error_number : warn_number;
|
||
}
|