mirror of
https://github.com/zint/zint
synced 2024-11-16 20:57:25 +13:00
1343 lines
47 KiB
C
1343 lines
47 KiB
C
/* dmatrix.c Handles Data Matrix ECC 200 symbols */
|
|
|
|
/*
|
|
libzint - the open source barcode library
|
|
Copyright (C) 2009-2017 Robin Stuart <rstuart114@gmail.com>
|
|
|
|
developed from and including some functions from:
|
|
IEC16022 bar code generation
|
|
Adrian Kennard, Andrews & Arnold Ltd
|
|
with help from Cliff Hones on the RS coding
|
|
|
|
(c) 2004 Adrian Kennard, Andrews & Arnold Ltd
|
|
(c) 2006 Stefan Schmidt <stefan@datenfreihafen.org>
|
|
|
|
Redistribution and use in source and binary forms, with or without
|
|
modification, are permitted provided that the following conditions
|
|
are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright
|
|
notice, this list of conditions and the following disclaimer.
|
|
2. Redistributions in binary form must reproduce the above copyright
|
|
notice, this list of conditions and the following disclaimer in the
|
|
documentation and/or other materials provided with the distribution.
|
|
3. Neither the name of the project nor the names of its contributors
|
|
may be used to endorse or promote products derived from this software
|
|
without specific prior written permission.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
|
|
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
|
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
|
ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE
|
|
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
|
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
|
OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
|
HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
|
OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
|
SUCH DAMAGE.
|
|
*/
|
|
/* vim: set ts=4 sw=4 et : */
|
|
|
|
#include <stdio.h>
|
|
#include <ctype.h>
|
|
#include <string.h>
|
|
#include <assert.h>
|
|
#include <math.h>
|
|
#ifdef _MSC_VER
|
|
#include <malloc.h>
|
|
/* ceilf (C99) not before MSVC++2013 (C++ 12.0) */
|
|
#if _MSC_VER < 1800
|
|
#define ceilf ceil
|
|
#endif
|
|
#endif
|
|
#include "common.h"
|
|
#include "reedsol.h"
|
|
#include "dmatrix.h"
|
|
|
|
/* Annex M placement alorithm low level */
|
|
static void ecc200placementbit(int *array, const int NR, const int NC, int r, int c, const int p, const char b) {
|
|
if (r < 0) {
|
|
r += NR;
|
|
c += 4 - ((NR + 4) % 8);
|
|
}
|
|
if (c < 0) {
|
|
c += NC;
|
|
r += 4 - ((NC + 4) % 8);
|
|
}
|
|
// Necessary for 26x32,26x40,26x48,36x120,36x144,72x120,72x144
|
|
if (r >= NR) {
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "r >= NR:%i,%i at r=%i->", p, b, r);
|
|
#endif
|
|
r -= NR;
|
|
#ifdef DEBUG
|
|
fprintf(stderr, "%i,c=%i\n", r, c);
|
|
#endif
|
|
}
|
|
#ifdef DEBUG
|
|
if (0 != array[r * NC + c]) {
|
|
int a = array[r * NC + c];
|
|
fprintf(stderr, "Double:%i,%i->%i,%i at r=%i,c=%i\n", a >> 3, a & 7, p, b, r, c);
|
|
return;
|
|
}
|
|
#endif
|
|
// Check index limits
|
|
assert(r < NR);
|
|
assert(c < NC);
|
|
// Check double-assignment
|
|
assert(0 == array[r * NC + c]);
|
|
array[r * NC + c] = (p << 3) + b;
|
|
}
|
|
|
|
static void ecc200placementblock(int *array, const int NR, const int NC, const int r,
|
|
const int c, const int p) {
|
|
ecc200placementbit(array, NR, NC, r - 2, c - 2, p, 7);
|
|
ecc200placementbit(array, NR, NC, r - 2, c - 1, p, 6);
|
|
ecc200placementbit(array, NR, NC, r - 1, c - 2, p, 5);
|
|
ecc200placementbit(array, NR, NC, r - 1, c - 1, p, 4);
|
|
ecc200placementbit(array, NR, NC, r - 1, c - 0, p, 3);
|
|
ecc200placementbit(array, NR, NC, r - 0, c - 2, p, 2);
|
|
ecc200placementbit(array, NR, NC, r - 0, c - 1, p, 1);
|
|
ecc200placementbit(array, NR, NC, r - 0, c - 0, p, 0);
|
|
}
|
|
|
|
static void ecc200placementcornerA(int *array, const int NR, const int NC, const int p) {
|
|
ecc200placementbit(array, NR, NC, NR - 1, 0, p, 7);
|
|
ecc200placementbit(array, NR, NC, NR - 1, 1, p, 6);
|
|
ecc200placementbit(array, NR, NC, NR - 1, 2, p, 5);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 2, p, 4);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 1, p, 3);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 1, p, 2);
|
|
ecc200placementbit(array, NR, NC, 2, NC - 1, p, 1);
|
|
ecc200placementbit(array, NR, NC, 3, NC - 1, p, 0);
|
|
}
|
|
|
|
static void ecc200placementcornerB(int *array, const int NR, const int NC, const int p) {
|
|
ecc200placementbit(array, NR, NC, NR - 3, 0, p, 7);
|
|
ecc200placementbit(array, NR, NC, NR - 2, 0, p, 6);
|
|
ecc200placementbit(array, NR, NC, NR - 1, 0, p, 5);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 4, p, 4);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 3, p, 3);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 2, p, 2);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 1, p, 1);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 1, p, 0);
|
|
}
|
|
|
|
static void ecc200placementcornerC(int *array, const int NR, const int NC, const int p) {
|
|
ecc200placementbit(array, NR, NC, NR - 3, 0, p, 7);
|
|
ecc200placementbit(array, NR, NC, NR - 2, 0, p, 6);
|
|
ecc200placementbit(array, NR, NC, NR - 1, 0, p, 5);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 2, p, 4);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 1, p, 3);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 1, p, 2);
|
|
ecc200placementbit(array, NR, NC, 2, NC - 1, p, 1);
|
|
ecc200placementbit(array, NR, NC, 3, NC - 1, p, 0);
|
|
}
|
|
|
|
static void ecc200placementcornerD(int *array, const int NR, const int NC, const int p) {
|
|
ecc200placementbit(array, NR, NC, NR - 1, 0, p, 7);
|
|
ecc200placementbit(array, NR, NC, NR - 1, NC - 1, p, 6);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 3, p, 5);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 2, p, 4);
|
|
ecc200placementbit(array, NR, NC, 0, NC - 1, p, 3);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 3, p, 2);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 2, p, 1);
|
|
ecc200placementbit(array, NR, NC, 1, NC - 1, p, 0);
|
|
}
|
|
|
|
/* Annex M placement alorithm main function */
|
|
static void ecc200placement(int *array, const int NR, const int NC) {
|
|
int r, c, p;
|
|
// invalidate
|
|
for (r = 0; r < NR; r++)
|
|
for (c = 0; c < NC; c++)
|
|
array[r * NC + c] = 0;
|
|
// start
|
|
p = 1;
|
|
r = 4;
|
|
c = 0;
|
|
do {
|
|
// check corner
|
|
if (r == NR && !c)
|
|
ecc200placementcornerA(array, NR, NC, p++);
|
|
if (r == NR - 2 && !c && NC % 4)
|
|
ecc200placementcornerB(array, NR, NC, p++);
|
|
if (r == NR - 2 && !c && (NC % 8) == 4)
|
|
ecc200placementcornerC(array, NR, NC, p++);
|
|
if (r == NR + 4 && c == 2 && !(NC % 8))
|
|
ecc200placementcornerD(array, NR, NC, p++);
|
|
// up/right
|
|
do {
|
|
if (r < NR && c >= 0 && !array[r * NC + c])
|
|
ecc200placementblock(array, NR, NC, r, c, p++);
|
|
r -= 2;
|
|
c += 2;
|
|
} while (r >= 0 && c < NC);
|
|
r++;
|
|
c += 3;
|
|
// down/left
|
|
do {
|
|
if (r >= 0 && c < NC && !array[r * NC + c])
|
|
ecc200placementblock(array, NR, NC, r, c, p++);
|
|
r += 2;
|
|
c -= 2;
|
|
} while (r < NR && c >= 0);
|
|
r += 3;
|
|
c++;
|
|
} while (r < NR || c < NC);
|
|
// unfilled corner
|
|
if (!array[NR * NC - 1])
|
|
array[NR * NC - 1] = array[NR * NC - NC - 2] = 1;
|
|
}
|
|
|
|
/* calculate and append ecc code, and if necessary interleave */
|
|
static void ecc200(unsigned char *binary, const int bytes, const int datablock, const int rsblock, const int skew) {
|
|
int blocks = (bytes + 2) / datablock, b;
|
|
int n;
|
|
rs_init_gf(0x12d);
|
|
rs_init_code(rsblock, 1);
|
|
for (b = 0; b < blocks; b++) {
|
|
unsigned char buf[256], ecc[256];
|
|
int p = 0;
|
|
for (n = b; n < bytes; n += blocks)
|
|
buf[p++] = binary[n];
|
|
rs_encode(p, buf, ecc);
|
|
p = rsblock - 1; // comes back reversed
|
|
for (n = b; n < rsblock * blocks; n += blocks) {
|
|
if (skew) {
|
|
/* Rotate ecc data to make 144x144 size symbols acceptable */
|
|
/* See http://groups.google.com/group/postscriptbarcode/msg/5ae8fda7757477da */
|
|
if (b < 8) {
|
|
binary[bytes + n + 2] = ecc[p--];
|
|
} else {
|
|
binary[bytes + n - 8] = ecc[p--];
|
|
}
|
|
} else {
|
|
binary[bytes + n] = ecc[p--];
|
|
}
|
|
}
|
|
}
|
|
rs_free();
|
|
}
|
|
|
|
/* Return true (1) if a character is valid in X12 set */
|
|
static int isX12(const int source) {
|
|
|
|
switch(source) {
|
|
case 13: // CR
|
|
case 42: // *
|
|
case 62: // >
|
|
case 32: // space
|
|
return 1;
|
|
}
|
|
|
|
if ((source >= '0') && (source <= '9')) {
|
|
return 1;
|
|
}
|
|
if ((source >= 'A') && (source <= 'Z')) {
|
|
return 1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Insert a character into the middle of a string at position posn */
|
|
static void dminsert(char binary_string[], const int posn, const char newbit) {
|
|
int i, end;
|
|
|
|
end = (int) strlen(binary_string);
|
|
for (i = end + 1; i > posn; i--) {
|
|
binary_string[i] = binary_string[i - 1];
|
|
}
|
|
binary_string[posn] = newbit;
|
|
}
|
|
|
|
static void insert_value(unsigned char binary_stream[], const int posn, const int streamlen, const int newbit) {
|
|
int i;
|
|
|
|
for(i = (int)streamlen; i > posn; i--) {
|
|
binary_stream[i] = binary_stream[i - 1];
|
|
}
|
|
binary_stream[posn] = (unsigned char) newbit;
|
|
}
|
|
|
|
static int p_r_6_2_1(const unsigned char inputData[], const size_t position, const size_t sourcelen) {
|
|
/* Annex P section (r)(6)(ii)(I)
|
|
"If one of the three X12 terminator/separator characters first
|
|
occurs in the yet to be processed data before a non-X12 character..."
|
|
*/
|
|
|
|
size_t i;
|
|
size_t nonX12Position = 0;
|
|
size_t specialX12Position = 0;
|
|
int retval = 0;
|
|
|
|
for (i = position; i < sourcelen; i++) {
|
|
if (nonX12Position == 0) {
|
|
if (isX12(inputData[i]) != 1) {
|
|
nonX12Position = i;
|
|
}
|
|
}
|
|
|
|
if (specialX12Position == 0) {
|
|
if ((inputData[i] == (char) 13) ||
|
|
(inputData[i] == '*') ||
|
|
(inputData[i] == '>')) {
|
|
specialX12Position = i;
|
|
}
|
|
}
|
|
}
|
|
|
|
if ((nonX12Position != 0) && (specialX12Position != 0)) {
|
|
if (specialX12Position < nonX12Position) {
|
|
retval = 1;
|
|
}
|
|
}
|
|
|
|
return retval;
|
|
}
|
|
|
|
/* 'look ahead test' from Annex P */
|
|
static int look_ahead_test(const unsigned char inputData[], const size_t sourcelen, const size_t position, const int current_mode, const int gs1) {
|
|
float ascii_count, c40_count, text_count, x12_count, edf_count, b256_count, best_count;
|
|
const float stiction = (1.0F / 24.0F); // smallest change to act on, to get around floating point inaccuracies
|
|
int best_scheme;
|
|
size_t sp;
|
|
|
|
best_scheme = DM_NULL;
|
|
|
|
/* step (j) */
|
|
if (current_mode == DM_ASCII) {
|
|
ascii_count = 0.0F;
|
|
c40_count = 1.0F;
|
|
text_count = 1.0F;
|
|
x12_count = 1.0F;
|
|
edf_count = 1.0F;
|
|
b256_count = 1.25F;
|
|
} else {
|
|
ascii_count = 1.0F;
|
|
c40_count = 2.0F;
|
|
text_count = 2.0F;
|
|
x12_count = 2.0F;
|
|
edf_count = 2.0F;
|
|
b256_count = 2.25F;
|
|
}
|
|
|
|
switch (current_mode) {
|
|
case DM_C40: c40_count = 0.0F;
|
|
break;
|
|
case DM_TEXT: text_count = 0.0F;
|
|
break;
|
|
case DM_X12: x12_count = 0.0F;
|
|
break;
|
|
case DM_EDIFACT: edf_count = 0.0F;
|
|
break;
|
|
case DM_BASE256: b256_count = 0.0F;
|
|
break;
|
|
}
|
|
|
|
sp = position;
|
|
|
|
do {
|
|
if (sp == sourcelen) {
|
|
/* At the end of data ... step (k) */
|
|
ascii_count = ceilf(ascii_count);
|
|
b256_count = ceilf(b256_count);
|
|
edf_count = ceilf(edf_count);
|
|
text_count = ceilf(text_count);
|
|
x12_count = ceilf(x12_count);
|
|
c40_count = ceilf(c40_count);
|
|
|
|
best_count = c40_count;
|
|
best_scheme = DM_C40; // (k)(7)
|
|
|
|
if (x12_count < (best_count - stiction)) {
|
|
best_count = x12_count;
|
|
best_scheme = DM_X12; // (k)(6)
|
|
}
|
|
|
|
if (text_count < (best_count - stiction)) {
|
|
best_count = text_count;
|
|
best_scheme = DM_TEXT; // (k)(5)
|
|
}
|
|
|
|
if (edf_count < (best_count - stiction)) {
|
|
best_count = edf_count;
|
|
best_scheme = DM_EDIFACT; // (k)(4)
|
|
}
|
|
|
|
if (b256_count < (best_count - stiction)) {
|
|
best_count = b256_count;
|
|
best_scheme = DM_BASE256; // (k)(3)
|
|
}
|
|
|
|
if (ascii_count <= (best_count + stiction)) {
|
|
best_scheme = DM_ASCII; // (k)(2)
|
|
}
|
|
} else {
|
|
|
|
/* ascii ... step (l) */
|
|
if ((inputData[sp] >= '0') && (inputData[sp] <= '9')) {
|
|
ascii_count += 0.5F; // (l)(1)
|
|
} else {
|
|
if (inputData[sp] > 127) {
|
|
ascii_count = ceilf(ascii_count) + 2.0F; // (l)(2)
|
|
} else {
|
|
ascii_count = ceilf(ascii_count) + 1.0F; // (l)(3)
|
|
}
|
|
}
|
|
|
|
/* c40 ... step (m) */
|
|
if ((inputData[sp] == ' ') ||
|
|
(((inputData[sp] >= '0') && (inputData[sp] <= '9')) ||
|
|
((inputData[sp] >= 'A') && (inputData[sp] <= 'Z')))) {
|
|
c40_count += (2.0F / 3.0F); // (m)(1)
|
|
} else {
|
|
if (inputData[sp] > 127) {
|
|
c40_count += (8.0F / 3.0F); // (m)(2)
|
|
} else {
|
|
c40_count += (4.0F / 3.0F); // (m)(3)
|
|
}
|
|
}
|
|
|
|
/* text ... step (n) */
|
|
if ((inputData[sp] == ' ') ||
|
|
(((inputData[sp] >= '0') && (inputData[sp] <= '9')) ||
|
|
((inputData[sp] >= 'a') && (inputData[sp] <= 'z')))) {
|
|
text_count += (2.0F / 3.0F); // (n)(1)
|
|
} else {
|
|
if (inputData[sp] > 127) {
|
|
text_count += (8.0F / 3.0F); // (n)(2)
|
|
} else {
|
|
text_count += (4.0F / 3.0F); // (n)(3)
|
|
}
|
|
}
|
|
|
|
/* x12 ... step (o) */
|
|
if (isX12(inputData[sp])) {
|
|
x12_count += (2.0F / 3.0F); // (o)(1)
|
|
} else {
|
|
if (inputData[sp] > 127) {
|
|
x12_count += (13.0F / 3.0F); // (o)(2)
|
|
} else {
|
|
x12_count += (10.0F / 3.0F); // (o)(3)
|
|
}
|
|
}
|
|
|
|
/* edifact ... step (p) */
|
|
if ((inputData[sp] >= ' ') && (inputData[sp] <= '^')) {
|
|
edf_count += (3.0F / 4.0F); // (p)(1)
|
|
} else {
|
|
if (inputData[sp] > 127) {
|
|
edf_count += 17.0F; // (p)(2) > Value changed from ISO
|
|
} else {
|
|
edf_count += 13.0F; // (p)(3) > Value changed from ISO
|
|
}
|
|
}
|
|
if (gs1 && (inputData[sp] == '[')) {
|
|
/* fnc1 and gs have the same weight of 13.0f */
|
|
edf_count += 13.0F; // > Value changed from ISO
|
|
}
|
|
|
|
/* base 256 ... step (q) */
|
|
if ((gs1 == 1) && (inputData[sp] == '[')) {
|
|
/* FNC1 separator */
|
|
b256_count += 4.0F; // (q)(1)
|
|
} else {
|
|
b256_count += 1.0F; // (q)(2)
|
|
}
|
|
}
|
|
|
|
|
|
if (sp > (position + 3)) {
|
|
/* 4 data characters processed ... step (r) */
|
|
|
|
/* step (r)(6) */
|
|
if (((c40_count + 1.0F) < (ascii_count - stiction)) &&
|
|
((c40_count + 1.0F) < (b256_count - stiction)) &&
|
|
((c40_count + 1.0F) < (edf_count - stiction)) &&
|
|
((c40_count + 1.0F) < (text_count - stiction))) {
|
|
|
|
if (c40_count < (x12_count - stiction)) {
|
|
best_scheme = DM_C40;
|
|
}
|
|
|
|
if ((c40_count >= (x12_count - stiction))
|
|
&& (c40_count <= (x12_count + stiction))) {
|
|
if (p_r_6_2_1(inputData, sp, sourcelen) == 1) {
|
|
// Test (r)(6)(ii)(i)
|
|
best_scheme = DM_X12;
|
|
} else {
|
|
best_scheme = DM_C40;
|
|
}
|
|
}
|
|
}
|
|
|
|
/* step (r)(5) */
|
|
if (((x12_count + 1.0F) < (ascii_count - stiction)) &&
|
|
((x12_count + 1.0F) < (b256_count - stiction)) &&
|
|
((x12_count + 1.0F) < (edf_count - stiction)) &&
|
|
((x12_count + 1.0F) < (text_count - stiction)) &&
|
|
((x12_count + 1.0F) < (c40_count - stiction))) {
|
|
best_scheme = DM_X12;
|
|
}
|
|
|
|
/* step (r)(4) */
|
|
if (((text_count + 1.0F) < (ascii_count - stiction)) &&
|
|
((text_count + 1.0F) < (b256_count - stiction)) &&
|
|
((text_count + 1.0F) < (edf_count - stiction)) &&
|
|
((text_count + 1.0F) < (x12_count - stiction)) &&
|
|
((text_count + 1.0F) < (c40_count - stiction))) {
|
|
best_scheme = DM_TEXT;
|
|
}
|
|
|
|
/* step (r)(3) */
|
|
if (((edf_count + 1.0F) < (ascii_count - stiction)) &&
|
|
((edf_count + 1.0F) < (b256_count - stiction)) &&
|
|
((edf_count + 1.0F) < (text_count - stiction)) &&
|
|
((edf_count + 1.0F) < (x12_count - stiction)) &&
|
|
((edf_count + 1.0F) < (c40_count - stiction))) {
|
|
best_scheme = DM_EDIFACT;
|
|
}
|
|
|
|
/* step (r)(2) */
|
|
if (((b256_count + 1.0F) <= (ascii_count + stiction)) ||
|
|
(((b256_count + 1.0F) < (edf_count - stiction)) &&
|
|
((b256_count + 1.0F) < (text_count - stiction)) &&
|
|
((b256_count + 1.0F) < (x12_count - stiction)) &&
|
|
((b256_count + 1.0F) < (c40_count - stiction)))) {
|
|
best_scheme = DM_BASE256;
|
|
}
|
|
|
|
/* step (r)(1) */
|
|
if (((ascii_count + 1.0F) <= (b256_count + stiction)) &&
|
|
((ascii_count + 1.0F) <= (edf_count + stiction)) &&
|
|
((ascii_count + 1.0F) <= (text_count + stiction)) &&
|
|
((ascii_count + 1.0F) <= (x12_count + stiction)) &&
|
|
((ascii_count + 1.0F) <= (c40_count + stiction))) {
|
|
best_scheme = DM_ASCII;
|
|
}
|
|
}
|
|
|
|
sp++;
|
|
} while (best_scheme == DM_NULL); // step (s)
|
|
|
|
return best_scheme;
|
|
}
|
|
|
|
/* Encodes data using ASCII, C40, Text, X12, EDIFACT or Base 256 modes as appropriate
|
|
Supports encoding FNC1 in supporting systems */
|
|
static int dm200encode(struct zint_symbol *symbol, const unsigned char source[], unsigned char target[], int *last_mode, size_t *length_p, int process_buffer[], int *process_p, int *binlen_p) {
|
|
|
|
size_t sp;
|
|
int tp, i, gs1;
|
|
int current_mode, next_mode;
|
|
size_t inputlen = *length_p;
|
|
int debug = symbol->debug;
|
|
#ifndef _MSC_VER
|
|
char binary[2 * inputlen + 1 + 4 + 1]; /* Allow for GS1/READER_INIT, ECI and nul chars overhead */
|
|
#else
|
|
char* binary = (char*) _alloca(2 * inputlen + 1 + 4 + 1);
|
|
#endif
|
|
|
|
sp = 0;
|
|
tp = 0;
|
|
memset(process_buffer, 0, 8);
|
|
*process_p = 0;
|
|
strcpy(binary, "");
|
|
|
|
/* step (a) */
|
|
current_mode = DM_ASCII;
|
|
next_mode = DM_ASCII;
|
|
|
|
/* gs1 flag values: 0: no gs1, 1: gs1 with FNC1 serparator, 2: GS separator */
|
|
if ((symbol->input_mode & 0x07) == GS1_MODE) {
|
|
if (symbol->output_options & GS1_GS_SEPARATOR) {
|
|
gs1 = 2;
|
|
} else {
|
|
gs1 = 1;
|
|
}
|
|
} else {
|
|
gs1 = 0;
|
|
}
|
|
|
|
if (gs1) {
|
|
target[tp] = 232;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("FN1 ");
|
|
} /* FNC1 */
|
|
|
|
if (symbol->output_options & READER_INIT) {
|
|
if (gs1) {
|
|
strcpy(symbol->errtxt, "521: Cannot encode in GS1 mode and Reader Initialisation at the same time");
|
|
return ZINT_ERROR_INVALID_OPTION;
|
|
} else {
|
|
target[tp] = 234;
|
|
tp++; /* Reader Programming */
|
|
strcat(binary, " ");
|
|
if (debug) printf("RP ");
|
|
}
|
|
}
|
|
|
|
if (symbol->eci > 0) {
|
|
/* Encode ECI numbers according to Table 6 */
|
|
target[tp] = 241; /* ECI Character */
|
|
tp++;
|
|
if (symbol->eci <= 126) {
|
|
target[tp] = (unsigned char) symbol->eci + 1;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
}
|
|
if ((symbol->eci >= 127) && (symbol->eci <= 16382)) {
|
|
target[tp] = (unsigned char) ((symbol->eci - 127) / 254) + 128;
|
|
tp++;
|
|
target[tp] = (unsigned char) ((symbol->eci - 127) % 254) + 1;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
}
|
|
if (symbol->eci >= 16383) {
|
|
target[tp] = (unsigned char) ((symbol->eci - 16383) / 64516) + 192;
|
|
tp++;
|
|
target[tp] = (unsigned char) (((symbol->eci - 16383) / 254) % 254) + 1;
|
|
tp++;
|
|
target[tp] = (unsigned char) ((symbol->eci - 16383) % 254) + 1;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
}
|
|
if (debug) printf("ECI %d ", symbol->eci + 1);
|
|
}
|
|
|
|
/* Check for Macro05/Macro06 */
|
|
/* "[)>[RS]05[GS]...[RS][EOT]" -> CW 236 */
|
|
/* "[)>[RS]06[GS]...[RS][EOT]" -> CW 237 */
|
|
if (tp == 0 && sp == 0 && inputlen >= 9
|
|
&& source[0] == '[' && source[1] == ')' && source[2] == '>'
|
|
&& source[3] == '\x1e' && source[4] == '0'
|
|
&& (source[5] == '5' || source[5] == '6')
|
|
&& source[6] == '\x1d'
|
|
&& source[inputlen - 2] == '\x1e' && source[inputlen - 1] == '\x04') {
|
|
/* Output macro Codeword */
|
|
if (source[5] == '5') {
|
|
target[tp] = 236;
|
|
if (debug) printf("Macro05 ");
|
|
} else {
|
|
target[tp] = 237;
|
|
if (debug) printf("Macro06 ");
|
|
}
|
|
tp++;
|
|
strcat(binary, " ");
|
|
/* Remove macro characters from input string */
|
|
sp = 7;
|
|
inputlen -= 2;
|
|
*length_p -= 2;
|
|
}
|
|
|
|
|
|
while (sp < inputlen) {
|
|
|
|
current_mode = next_mode;
|
|
|
|
/* step (b) - ASCII encodation */
|
|
if (current_mode == DM_ASCII) {
|
|
next_mode = DM_ASCII;
|
|
|
|
if (istwodigits(source, inputlen, sp)) {
|
|
target[tp] = (unsigned char) ((10 * ctoi(source[sp])) + ctoi(source[sp + 1]) + 130);
|
|
if (debug) printf("N%d ", target[tp] - 130);
|
|
tp++;
|
|
strcat(binary, " ");
|
|
sp += 2;
|
|
} else {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
|
|
if (next_mode != DM_ASCII) {
|
|
switch (next_mode) {
|
|
case DM_C40: target[tp] = 230;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("C40 ");
|
|
break;
|
|
case DM_TEXT: target[tp] = 239;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("TEX ");
|
|
break;
|
|
case DM_X12: target[tp] = 238;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("X12 ");
|
|
break;
|
|
case DM_EDIFACT: target[tp] = 240;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("EDI ");
|
|
break;
|
|
case DM_BASE256: target[tp] = 231;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("BAS ");
|
|
break;
|
|
}
|
|
} else {
|
|
if (source[sp] > 127) {
|
|
target[tp] = 235; /* FNC4 */
|
|
if (debug) printf("FN4 ");
|
|
tp++;
|
|
target[tp] = (source[sp] - 128) + 1;
|
|
if (debug) printf("A%02X ", target[tp] - 1);
|
|
tp++;
|
|
strcat(binary, " ");
|
|
} else {
|
|
if (gs1 && (source[sp] == '[')) {
|
|
if (gs1==2) {
|
|
target[tp] = 29+1; /* GS */
|
|
if (debug) printf("GS ");
|
|
} else {
|
|
target[tp] = 232; /* FNC1 */
|
|
if (debug) printf("FN1 ");
|
|
}
|
|
} else {
|
|
target[tp] = source[sp] + 1;
|
|
if (debug) printf("A%02X ", target[tp] - 1);
|
|
}
|
|
tp++;
|
|
strcat(binary, " ");
|
|
}
|
|
sp++;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
/* step (c) C40 encodation */
|
|
if (current_mode == DM_C40) {
|
|
|
|
next_mode = DM_C40;
|
|
if (*process_p == 0) {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
}
|
|
|
|
if (next_mode != DM_C40) {
|
|
target[tp] = 254;
|
|
tp++;
|
|
strcat(binary, " "); /* Unlatch */
|
|
next_mode = DM_ASCII;
|
|
if (debug) printf("ASC ");
|
|
} else {
|
|
int shift_set, value;
|
|
if (source[sp] > 127) {
|
|
process_buffer[*process_p] = 1;
|
|
(*process_p)++;
|
|
process_buffer[*process_p] = 30;
|
|
(*process_p)++; /* Upper Shift */
|
|
shift_set = c40_shift[source[sp] - 128];
|
|
value = c40_value[source[sp] - 128];
|
|
} else {
|
|
shift_set = c40_shift[source[sp]];
|
|
value = c40_value[source[sp]];
|
|
}
|
|
|
|
if (gs1 && (source[sp] == '[')) {
|
|
if (gs1 == 2) {
|
|
shift_set = c40_shift[29];
|
|
value = c40_value[29]; /* GS */
|
|
} else {
|
|
shift_set = 2;
|
|
value = 27; /* FNC1 */
|
|
}
|
|
}
|
|
|
|
if (shift_set != 0) {
|
|
process_buffer[*process_p] = shift_set - 1;
|
|
(*process_p)++;
|
|
}
|
|
process_buffer[*process_p] = value;
|
|
(*process_p)++;
|
|
|
|
while (*process_p >= 3) {
|
|
int iv;
|
|
|
|
iv = (1600 * process_buffer[0]) + (40 * process_buffer[1]) + (process_buffer[2]) + 1;
|
|
target[tp] = (unsigned char) (iv / 256);
|
|
tp++;
|
|
target[tp] = iv % 256;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("[%d %d %d] ", process_buffer[0], process_buffer[1], process_buffer[2]);
|
|
|
|
process_buffer[0] = process_buffer[3];
|
|
process_buffer[1] = process_buffer[4];
|
|
process_buffer[2] = process_buffer[5];
|
|
process_buffer[3] = 0;
|
|
process_buffer[4] = 0;
|
|
process_buffer[5] = 0;
|
|
*process_p -= 3;
|
|
}
|
|
sp++;
|
|
}
|
|
}
|
|
|
|
/* step (d) Text encodation */
|
|
if (current_mode == DM_TEXT) {
|
|
|
|
next_mode = DM_TEXT;
|
|
if (*process_p == 0) {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
}
|
|
|
|
if (next_mode != DM_TEXT) {
|
|
target[tp] = 254;
|
|
tp++;
|
|
strcat(binary, " "); /* Unlatch */
|
|
next_mode = DM_ASCII;
|
|
if (debug) printf("ASC ");
|
|
} else {
|
|
int shift_set, value;
|
|
if (source[sp] > 127) {
|
|
process_buffer[*process_p] = 1;
|
|
(*process_p)++;
|
|
process_buffer[*process_p] = 30;
|
|
(*process_p)++; /* Upper Shift */
|
|
shift_set = text_shift[source[sp] - 128];
|
|
value = text_value[source[sp] - 128];
|
|
} else {
|
|
shift_set = text_shift[source[sp]];
|
|
value = text_value[source[sp]];
|
|
}
|
|
|
|
if (gs1 && (source[sp] == '[')) {
|
|
if (gs1 == 2) {
|
|
shift_set = text_shift[29];
|
|
value = text_value[29]; /* GS */
|
|
} else {
|
|
shift_set = 2;
|
|
value = 27; /* FNC1 */
|
|
}
|
|
}
|
|
|
|
if (shift_set != 0) {
|
|
process_buffer[*process_p] = shift_set - 1;
|
|
(*process_p)++;
|
|
}
|
|
process_buffer[*process_p] = value;
|
|
(*process_p)++;
|
|
|
|
while (*process_p >= 3) {
|
|
int iv;
|
|
|
|
iv = (1600 * process_buffer[0]) + (40 * process_buffer[1]) + (process_buffer[2]) + 1;
|
|
target[tp] = (unsigned char) (iv / 256);
|
|
tp++;
|
|
target[tp] = iv % 256;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("[%d %d %d] ", process_buffer[0], process_buffer[1], process_buffer[2]);
|
|
|
|
process_buffer[0] = process_buffer[3];
|
|
process_buffer[1] = process_buffer[4];
|
|
process_buffer[2] = process_buffer[5];
|
|
process_buffer[3] = 0;
|
|
process_buffer[4] = 0;
|
|
process_buffer[5] = 0;
|
|
*process_p -= 3;
|
|
}
|
|
sp++;
|
|
}
|
|
}
|
|
|
|
/* step (e) X12 encodation */
|
|
if (current_mode == DM_X12) {
|
|
|
|
next_mode = DM_X12;
|
|
if (*process_p == 0) {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
}
|
|
|
|
if (next_mode != DM_X12) {
|
|
target[tp] = 254;
|
|
tp++;
|
|
strcat(binary, " "); /* Unlatch */
|
|
next_mode = DM_ASCII;
|
|
if (debug) printf("ASC ");
|
|
} else {
|
|
int value = 0;
|
|
if (source[sp] == 13) {
|
|
value = 0;
|
|
}
|
|
if (source[sp] == '*') {
|
|
value = 1;
|
|
}
|
|
if (source[sp] == '>') {
|
|
value = 2;
|
|
}
|
|
if (source[sp] == ' ') {
|
|
value = 3;
|
|
}
|
|
if ((source[sp] >= '0') && (source[sp] <= '9')) {
|
|
value = (source[sp] - '0') + 4;
|
|
}
|
|
if ((source[sp] >= 'A') && (source[sp] <= 'Z')) {
|
|
value = (source[sp] - 'A') + 14;
|
|
}
|
|
|
|
process_buffer[*process_p] = value;
|
|
(*process_p)++;
|
|
|
|
while (*process_p >= 3) {
|
|
int iv;
|
|
|
|
iv = (1600 * process_buffer[0]) + (40 * process_buffer[1]) + (process_buffer[2]) + 1;
|
|
target[tp] = (unsigned char) (iv / 256);
|
|
tp++;
|
|
target[tp] = iv % 256;
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("[%d %d %d] ", process_buffer[0], process_buffer[1], process_buffer[2]);
|
|
|
|
process_buffer[0] = process_buffer[3];
|
|
process_buffer[1] = process_buffer[4];
|
|
process_buffer[2] = process_buffer[5];
|
|
process_buffer[3] = 0;
|
|
process_buffer[4] = 0;
|
|
process_buffer[5] = 0;
|
|
*process_p -= 3;
|
|
}
|
|
sp++;
|
|
}
|
|
}
|
|
|
|
/* step (f) EDIFACT encodation */
|
|
if (current_mode == DM_EDIFACT) {
|
|
|
|
next_mode = DM_EDIFACT;
|
|
if (*process_p == 3) {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
}
|
|
|
|
if (next_mode != DM_EDIFACT) {
|
|
process_buffer[*process_p] = 31;
|
|
(*process_p)++;
|
|
next_mode = DM_ASCII;
|
|
} else {
|
|
int value = source[sp];
|
|
|
|
if (source[sp] >= 64) { // '@'
|
|
value -= 64;
|
|
}
|
|
|
|
process_buffer[*process_p] = value;
|
|
(*process_p)++;
|
|
sp++;
|
|
}
|
|
|
|
while (*process_p >= 4) {
|
|
target[tp] = (unsigned char) ((process_buffer[0] << 2) + ((process_buffer[1] & 0x30) >> 4));
|
|
tp++;
|
|
target[tp] = ((process_buffer[1] & 0x0f) << 4) + ((process_buffer[2] & 0x3c) >> 2);
|
|
tp++;
|
|
target[tp] = (unsigned char) (((process_buffer[2] & 0x03) << 6) + process_buffer[3]);
|
|
tp++;
|
|
strcat(binary, " ");
|
|
if (debug) printf("[%d %d %d %d] ", process_buffer[0], process_buffer[1], process_buffer[2], process_buffer[3]);
|
|
|
|
process_buffer[0] = process_buffer[4];
|
|
process_buffer[1] = process_buffer[5];
|
|
process_buffer[2] = process_buffer[6];
|
|
process_buffer[3] = process_buffer[7];
|
|
process_buffer[4] = 0;
|
|
process_buffer[5] = 0;
|
|
process_buffer[6] = 0;
|
|
process_buffer[7] = 0;
|
|
*process_p -= 4;
|
|
}
|
|
}
|
|
|
|
/* step (g) Base 256 encodation */
|
|
if (current_mode == DM_BASE256) {
|
|
next_mode = look_ahead_test(source, inputlen, sp, current_mode, gs1);
|
|
|
|
if (next_mode == DM_BASE256) {
|
|
target[tp] = source[sp];
|
|
if (debug) printf("B%02X ", target[tp]);
|
|
tp++;
|
|
sp++;
|
|
strcat(binary, "b");
|
|
} else {
|
|
next_mode = DM_ASCII;
|
|
if (debug) printf("ASC ");
|
|
}
|
|
}
|
|
|
|
if (tp > 1558) {
|
|
strcpy(symbol->errtxt, "520: Data too long to fit in symbol");
|
|
return ZINT_ERROR_TOO_LONG;
|
|
}
|
|
|
|
} /* while */
|
|
|
|
/* Add length and randomising algorithm to b256 */
|
|
i = 0;
|
|
while (i < tp) {
|
|
if (binary[i] == 'b') {
|
|
if ((i == 0) || (binary[i - 1] != 'b')) {
|
|
/* start of binary data */
|
|
int binary_count; /* length of b256 data */
|
|
|
|
for (binary_count = 0; binary_count + i < tp && binary[binary_count + i] == 'b'; binary_count++);
|
|
|
|
if (binary_count <= 249) {
|
|
dminsert(binary, i, 'b');
|
|
insert_value(target, i, tp, binary_count);
|
|
tp++;
|
|
} else {
|
|
dminsert(binary, i, 'b');
|
|
dminsert(binary, i + 1, 'b');
|
|
insert_value(target, i, tp, (binary_count / 250) + 249);
|
|
tp++;
|
|
insert_value(target, i + 1, tp, binary_count % 250);
|
|
tp++;
|
|
}
|
|
}
|
|
}
|
|
i++;
|
|
}
|
|
|
|
for (i = 0; i < tp; i++) {
|
|
if (binary[i] == 'b') {
|
|
int prn, temp;
|
|
|
|
prn = ((149 * (i + 1)) % 255) + 1;
|
|
temp = target[i] + prn;
|
|
if (temp <= 255) {
|
|
target[i] = (unsigned char) (temp);
|
|
} else {
|
|
target[i] = (unsigned char) (temp - 256);
|
|
}
|
|
}
|
|
}
|
|
|
|
*(last_mode) = current_mode;
|
|
*binlen_p = tp;
|
|
return 0;
|
|
}
|
|
|
|
static int dm200encode_remainder(unsigned char target[], int target_length, const unsigned char source[], const size_t inputlen, const int last_mode, const int process_buffer[], const int process_p, const int symbols_left) {
|
|
int debug = 0;
|
|
|
|
switch (last_mode) {
|
|
case DM_C40:
|
|
case DM_TEXT:
|
|
if (process_p == 1) // 1 data character left to encode.
|
|
{
|
|
if (symbols_left > 1) {
|
|
target[target_length] = 254;
|
|
target_length++; // Unlatch and encode remaining data in ascii.
|
|
}
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
} else if (process_p == 2) // 2 data characters left to encode.
|
|
{
|
|
// Pad with shift 1 value (0) and encode as double.
|
|
int intValue = (1600 * process_buffer[0]) + (40 * process_buffer[1]) + 1; // ie (0 + 1).
|
|
target[target_length] = (unsigned char) (intValue / 256);
|
|
target_length++;
|
|
target[target_length] = (unsigned char) (intValue % 256);
|
|
target_length++;
|
|
if (symbols_left > 2) {
|
|
target[target_length] = 254; // Unlatch
|
|
target_length++;
|
|
}
|
|
} else {
|
|
if (symbols_left > 0) {
|
|
target[target_length] = 254; // Unlatch
|
|
target_length++;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DM_X12:
|
|
if ((symbols_left == process_p) && (process_p == 1)) {
|
|
// Unlatch not required!
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
} else {
|
|
target[target_length] = (254);
|
|
target_length++; // Unlatch.
|
|
|
|
if (process_p == 1) {
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
}
|
|
|
|
if (process_p == 2) {
|
|
target[target_length] = source[inputlen - 2] + 1;
|
|
target_length++;
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case DM_EDIFACT:
|
|
if (symbols_left <= 2) // Unlatch not required!
|
|
{
|
|
if (process_p == 1) {
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
}
|
|
|
|
if (process_p == 2) {
|
|
target[target_length] = source[inputlen - 2] + 1;
|
|
target_length++;
|
|
target[target_length] = source[inputlen - 1] + 1;
|
|
target_length++;
|
|
}
|
|
} else {
|
|
// Append edifact unlatch value (31) and empty buffer
|
|
if (process_p == 0) {
|
|
target[target_length] = (unsigned char) (31 << 2);
|
|
target_length++;
|
|
}
|
|
|
|
if (process_p == 1) {
|
|
target[target_length] = (unsigned char) ((process_buffer[0] << 2) + ((31 & 0x30) >> 4));
|
|
target_length++;
|
|
target[target_length] = (unsigned char) ((31 & 0x0f) << 4);
|
|
target_length++;
|
|
}
|
|
|
|
if (process_p == 2) {
|
|
target[target_length] = (unsigned char) ((process_buffer[0] << 2) + ((process_buffer[1] & 0x30) >> 4));
|
|
target_length++;
|
|
target[target_length] = (unsigned char) (((process_buffer[1] & 0x0f) << 4) + ((31 & 0x3c) >> 2));
|
|
target_length++;
|
|
target[target_length] = (unsigned char) (((31 & 0x03) << 6));
|
|
target_length++;
|
|
}
|
|
|
|
if (process_p == 3) {
|
|
target[target_length] = (unsigned char) ((process_buffer[0] << 2) + ((process_buffer[1] & 0x30) >> 4));
|
|
target_length++;
|
|
target[target_length] = (unsigned char) (((process_buffer[1] & 0x0f) << 4) + ((process_buffer[2] & 0x3c) >> 2));
|
|
target_length++;
|
|
target[target_length] = (unsigned char) (((process_buffer[2] & 0x03) << 6) + 31);
|
|
target_length++;
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
if (debug) {
|
|
int i;
|
|
printf("\n\n");
|
|
for (i = 0; i < target_length; i++)
|
|
printf("%03d ", target[i]);
|
|
|
|
printf("\n");
|
|
}
|
|
|
|
return target_length;
|
|
}
|
|
|
|
/* add pad bits */
|
|
static void add_tail(unsigned char target[], int tp, const int tail_length) {
|
|
int i, prn, temp;
|
|
|
|
for (i = tail_length; i > 0; i--) {
|
|
if (i == tail_length) {
|
|
target[tp] = 129;
|
|
tp++; /* Pad */
|
|
} else {
|
|
prn = ((149 * (tp + 1)) % 253) + 1;
|
|
temp = 129 + prn;
|
|
if (temp <= 254) {
|
|
target[tp] = (unsigned char) (temp);
|
|
tp++;
|
|
} else {
|
|
target[tp] = (unsigned char) (temp - 254);
|
|
tp++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
static int data_matrix_200(struct zint_symbol *symbol,const unsigned char source[], const size_t in_length) {
|
|
int i, skew = 0;
|
|
size_t inputlen = in_length;
|
|
unsigned char binary[2200];
|
|
int binlen;
|
|
int process_buffer[8]; /* holds remaining data to finalised */
|
|
int process_p; /* number of characters left to finalise */
|
|
int symbolsize, optionsize, calcsize;
|
|
int taillength, error_number = 0;
|
|
int H, W, FH, FW, datablock, bytes, rsblock;
|
|
int last_mode = DM_ASCII;
|
|
int symbols_left;
|
|
|
|
/* inputlen may be decremented by 2 if macro character is used */
|
|
error_number = dm200encode(symbol, source, binary, &last_mode, &inputlen, process_buffer, &process_p, &binlen);
|
|
if (error_number != 0) {
|
|
return error_number;
|
|
}
|
|
|
|
if ((symbol->option_2 >= 1) && (symbol->option_2 <= DMSIZESCOUNT)) {
|
|
optionsize = intsymbol[symbol->option_2 - 1];
|
|
} else {
|
|
optionsize = -1;
|
|
}
|
|
|
|
calcsize = DMSIZESCOUNT - 1;
|
|
for (i = DMSIZESCOUNT - 1; i > -1; i--) {
|
|
if (matrixbytes[i] >= (binlen + process_p)) {
|
|
// Allow for the remaining data characters
|
|
calcsize = i;
|
|
}
|
|
}
|
|
|
|
if (optionsize == -1) {
|
|
// We are in automatic size mode as the exact symbol size was not given
|
|
// Now check the detailed search options square only or no dmre
|
|
if (symbol->option_3 == DM_SQUARE) {
|
|
/* Skip rectangular symbols in square only mode */
|
|
while (matrixH[calcsize] != matrixW[calcsize]) {
|
|
calcsize++;
|
|
}
|
|
} else if (symbol->option_3 != DM_DMRE) {
|
|
/* Skip DMRE symbols in no dmre mode */
|
|
while (isDMRE[calcsize]) {
|
|
calcsize++;
|
|
}
|
|
}
|
|
symbolsize = calcsize;
|
|
} else {
|
|
// The symbol size was given by --ver (option_2)
|
|
// Thus check if the data fits into this symbol size and use this size
|
|
if (calcsize > optionsize) {
|
|
strcpy(symbol->errtxt, "522: Input too long for selected symbol size");
|
|
return ZINT_ERROR_TOO_LONG;
|
|
}
|
|
symbolsize = optionsize;
|
|
}
|
|
|
|
// Now we know the symbol size we can handle the remaining data in the process buffer.
|
|
symbols_left = matrixbytes[symbolsize] - binlen;
|
|
binlen = dm200encode_remainder(binary, binlen, source, inputlen, last_mode, process_buffer, process_p, symbols_left);
|
|
|
|
if (binlen > matrixbytes[symbolsize]) {
|
|
strcpy(symbol->errtxt, "523: Data too long to fit in symbol");
|
|
return ZINT_ERROR_TOO_LONG;
|
|
}
|
|
|
|
H = matrixH[symbolsize];
|
|
W = matrixW[symbolsize];
|
|
FH = matrixFH[symbolsize];
|
|
FW = matrixFW[symbolsize];
|
|
bytes = matrixbytes[symbolsize];
|
|
datablock = matrixdatablock[symbolsize];
|
|
rsblock = matrixrsblock[symbolsize];
|
|
|
|
taillength = bytes - binlen;
|
|
|
|
if (taillength != 0) {
|
|
add_tail(binary, binlen, taillength);
|
|
}
|
|
|
|
// ecc code
|
|
if (symbolsize == INTSYMBOL144) {
|
|
skew = 1;
|
|
}
|
|
ecc200(binary, bytes, datablock, rsblock, skew);
|
|
// Print Codewords
|
|
#ifdef DEBUG
|
|
{
|
|
int CWCount;
|
|
int posCur;
|
|
if (skew)
|
|
CWCount = 1558 + 620;
|
|
else
|
|
CWCount = bytes + rsblock * (bytes / datablock);
|
|
printf("Codewords (%i):", CWCount);
|
|
for (posCur = 0; posCur < CWCount; posCur++)
|
|
printf(" %3i", binary[posCur]);
|
|
puts("\n");
|
|
}
|
|
#endif
|
|
{ // placement
|
|
int x, y, NC, NR, *places;
|
|
unsigned char *grid;
|
|
NC = W - 2 * (W / FW);
|
|
NR = H - 2 * (H / FH);
|
|
places = (int*) malloc(NC * NR * sizeof (int));
|
|
ecc200placement(places, NR, NC);
|
|
grid = (unsigned char*) malloc(W * H);
|
|
memset(grid, 0, W * H);
|
|
for (y = 0; y < H; y += FH) {
|
|
for (x = 0; x < W; x++)
|
|
grid[y * W + x] = 1;
|
|
for (x = 0; x < W; x += 2)
|
|
grid[(y + FH - 1) * W + x] = 1;
|
|
}
|
|
for (x = 0; x < W; x += FW) {
|
|
for (y = 0; y < H; y++)
|
|
grid[y * W + x] = 1;
|
|
for (y = 0; y < H; y += 2)
|
|
grid[y * W + x + FW - 1] = 1;
|
|
}
|
|
#ifdef DEBUG
|
|
// Print position matrix as in standard
|
|
for (y = NR - 1; y >= 0; y--) {
|
|
for (x = 0; x < NC; x++) {
|
|
int v;
|
|
if (x != 0)
|
|
fprintf(stderr, "|");
|
|
v = places[(NR - y - 1) * NC + x];
|
|
fprintf(stderr, "%3d.%2d", (v >> 3), 8 - (v & 7));
|
|
}
|
|
fprintf(stderr, "\n");
|
|
}
|
|
#endif
|
|
for (y = 0; y < NR; y++) {
|
|
for (x = 0; x < NC; x++) {
|
|
int v = places[(NR - y - 1) * NC + x];
|
|
//fprintf (stderr, "%4d", v);
|
|
if (v == 1 || (v > 7 && (binary[(v >> 3) - 1] & (1 << (v & 7)))))
|
|
grid[(1 + y + 2 * (y / (FH - 2))) * W + 1 + x + 2 * (x / (FW - 2))] = 1;
|
|
}
|
|
//fprintf (stderr, "\n");
|
|
}
|
|
for (y = H - 1; y >= 0; y--) {
|
|
int x;
|
|
for (x = 0; x < W; x++) {
|
|
if (grid[W * y + x]) {
|
|
set_module(symbol, (H - y) - 1, x);
|
|
}
|
|
}
|
|
symbol->row_height[(H - y) - 1] = 1;
|
|
}
|
|
free(grid);
|
|
free(places);
|
|
}
|
|
|
|
symbol->rows = H;
|
|
symbol->width = W;
|
|
|
|
return error_number;
|
|
}
|
|
|
|
INTERNAL int dmatrix(struct zint_symbol *symbol, const unsigned char source[], const size_t in_length) {
|
|
int error_number;
|
|
|
|
if (symbol->option_1 <= 1) {
|
|
/* ECC 200 */
|
|
error_number = data_matrix_200(symbol, source, in_length);
|
|
} else {
|
|
/* ECC 000 - 140 */
|
|
strcpy(symbol->errtxt, "524: Older Data Matrix standards are no longer supported");
|
|
error_number = ZINT_ERROR_INVALID_OPTION;
|
|
}
|
|
|
|
return error_number;
|
|
}
|