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zint/backend/code1.c
hooper114 60a5d6db79 Remove console output and add ECC comment
2009-07-05 09:30:53 +00:00

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/* code1.c - USS Code One */
/*
libzint - the open source barcode library
Copyright (C) 2009 Robin Stuart <robin@zint.org.uk>
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License along
with this program; if not, write to the Free Software Foundation, Inc.,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "common.h"
#include "code1.h"
#include "reedsol.h"
#include <stdio.h>
#include <string.h>
#include <malloc.h>
void horiz(struct zint_symbol *symbol, int row_no, int full)
{
int i;
if(full) {
for(i = 0; i < symbol->width; i++) {
set_module(symbol, row_no, i);
}
} else {
for(i = 1; i < symbol->width - 1; i++) {
set_module(symbol, row_no, i);
}
}
}
void central_finder(struct zint_symbol *symbol, int start_row, int row_count, int full_rows)
{
int i;
for(i = 0; i < row_count; i++) {
if(i < full_rows) {
horiz(symbol, start_row + (i * 2), 1);
} else {
horiz(symbol, start_row + (i * 2), 0);
if(i != row_count - 1) {
set_module(symbol, start_row + (i * 2) + 1, 1);
set_module(symbol, start_row + (i * 2) + 1, symbol->width - 2);
}
}
}
}
void vert(struct zint_symbol *symbol, int column, int height, int top)
{
int i;
if(top) {
for (i = 0; i < height; i++) {
set_module(symbol, i, column);
}
} else {
for (i = 0; i < height; i++) {
set_module(symbol, symbol->rows - i - 1, column);
}
}
}
void spigot(struct zint_symbol *symbol, int row_no)
{
int i;
for(i = symbol->width - 1; i > 0; i--) {
if(module_is_set(symbol, row_no, i - 1)) {
set_module(symbol, row_no, i);
}
}
}
int isedi(unsigned char input)
{
int result = 0;
if(input == 13) { result = 1; }
if(input == '*') { result = 1; }
if(input == '>') { result = 1; }
if(input == ' ') { result = 1; }
if((input >= '0') && (input <= '9')) { result = 1; }
if((input >= 'A') && (input <= 'Z')) { result = 1; }
return result;
}
int dq4bi(unsigned char source[], int sourcelen, int position)
{
int i;
for(i = position; isedi(source[position + i]) && ((position + i) < sourcelen); i++);
if((position + i) == sourcelen) {
/* Reached end of input */
return 0;
}
if (source[position + i - 1] == 13) { return 1; }
if (source[position + i - 1] == '*') { return 1; }
if (source[position + i - 1] == '>') { return 1; }
return 0;
}
int c1_look_ahead_test(unsigned char source[], int sourcelen, int position, int current_mode, int gs1)
{
float ascii_count, c40_count, text_count, edi_count, byte_count;
char reduced_char;
int done, best_scheme, best_count, sp;
/* Step J */
if(current_mode == C1_ASCII) {
ascii_count = 0.0;
c40_count = 1.0;
text_count = 1.0;
edi_count = 1.0;
byte_count = 2.0;
} else {
ascii_count = 1.0;
c40_count = 2.0;
text_count = 2.0;
edi_count = 2.0;
byte_count = 3.0;
}
switch(current_mode) {
case C1_C40: c40_count = 0.0; break;
case C1_TEXT: text_count = 0.0; break;
case C1_BYTE: byte_count = 0.0; break;
case C1_EDI: edi_count = 0.0; break;
}
for(sp = position; (sp < sourcelen) && (sp <= (position + 8)); sp++) {
if(source[sp] <= 127) { reduced_char = source[sp]; } else { reduced_char = source[sp] - 127; }
/* Step L */
if((source[sp] >= '0') && (source[sp] <= '9')) {
ascii_count += 0.5;
} else {
ascii_count = froundup(ascii_count);
if(source[sp] > 127) {
ascii_count += 2.0;
} else {
ascii_count += 1.0;
}
}
/* Step M */
done = 0;
if(reduced_char == ' ') { c40_count += (2.0 / 3.0); done = 1; }
if((reduced_char >= '0') && (reduced_char <= '9')) { c40_count += (2.0 / 3.0); done = 1; }
if((reduced_char >= 'A') && (reduced_char <= 'Z')) { c40_count += (2.0 / 3.0); done = 1; }
if(source[sp] > 127) { c40_count += (4.0 / 3.0); }
if(done == 0) { c40_count += (4.0 / 3.0); }
/* Step N */
done = 0;
if(reduced_char == ' ') { text_count += (2.0 / 3.0); done = 1; }
if((reduced_char >= '0') && (reduced_char <= '9')) { text_count += (2.0 / 3.0); done = 1; }
if((reduced_char >= 'a') && (reduced_char <= 'z')) { text_count += (2.0 / 3.0); done = 1; }
if(source[sp] > 127) { text_count += (4.0 / 3.0); }
if(done == 0) { text_count += (4.0 / 3.0); }
/* Step O */
done = 0;
if(source[sp] == 13) { edi_count += (2.0 / 3.0); done = 1; }
if(source[sp] == '*') { edi_count += (2.0 / 3.0); done = 1; }
if(source[sp] == '>') { edi_count += (2.0 / 3.0); done = 1; }
if(source[sp] == ' ') { edi_count += (2.0 / 3.0); done = 1; }
if((source[sp] >= '0') && (source[sp] <= '9')) { edi_count += (2.0 / 3.0); done = 1; }
if((source[sp] >= 'A') && (source[sp] <= 'Z')) { edi_count += (2.0 / 3.0); done = 1; }
if(source[sp] > 127) {
edi_count += (13.0 / 3.0);
} else {
if(done == 0) {
edi_count += (10.0 / 3.0);
}
}
/* Step P */
if(gs1 && (source[sp] == '[')) { byte_count += 3.0; } else { byte_count += 1.0; }
}
ascii_count = froundup(ascii_count);
c40_count = froundup(c40_count);
text_count = froundup(text_count);
edi_count = froundup(edi_count);
byte_count = froundup(byte_count);
best_scheme = C1_ASCII;
if(sp == sourcelen) {
/* Step K */
best_count = edi_count;
if(text_count <= best_count) {
best_count = text_count;
best_scheme = C1_TEXT;
}
if(c40_count <= best_count) {
best_count = c40_count;
best_scheme = C1_C40;
}
if(ascii_count <= best_count) {
best_count = ascii_count;
best_scheme = C1_ASCII;
}
if(byte_count <= best_count) {
best_count = byte_count;
best_scheme = C1_BYTE;
}
} else {
/* Step Q */
if(((edi_count + 1.0 <= ascii_count) && (edi_count + 1.0 <= c40_count)) &&
((edi_count + 1.0 <= byte_count) && (edi_count + 1.0 <= text_count))) {
best_scheme = C1_EDI;
}
if((c40_count + 1.0 <= ascii_count) && (c40_count + 1.0 <= text_count)) {
if(c40_count < edi_count) {
best_scheme = C1_C40;
} else {
done = 0;
if(c40_count == edi_count) {
if(dq4bi(source, sourcelen, position)) {
best_scheme = C1_EDI;
} else {
best_scheme = C1_C40;
}
}
}
}
if(((text_count + 1.0 <= ascii_count) && (text_count + 1.0 <= c40_count)) &&
((text_count + 1.0 <= byte_count) && (text_count + 1.0 <= edi_count))) {
best_scheme = C1_TEXT;
}
if(((ascii_count + 1.0 <= byte_count) && (ascii_count + 1.0 <= c40_count)) &&
((ascii_count + 1.0 <= text_count) && (ascii_count + 1.0 <= edi_count))) {
best_scheme = C1_ASCII;
}
if(((byte_count + 1.0 <= ascii_count) && (byte_count + 1.0 <= c40_count)) &&
((byte_count + 1.0 <= text_count) && (byte_count + 1.0 <= edi_count))) {
best_scheme = C1_BYTE;
}
}
//printf("\n> scores: ASCII %.2f C40 %.2f TEXT %.2f EDI %.2f BYTE %.2f\n", ascii_count, c40_count, text_count, edi_count, byte_count);
return best_scheme;
}
int c1_encode(struct zint_symbol *symbol, unsigned char source[], unsigned int target[])
{
int inputlen = ustrlen(source);
int current_mode, next_mode;
int sp, tp, gs1, i, j, latch;
int c40_buffer[6], c40_p;
int text_buffer[6], text_p;
int edi_buffer[6], edi_p;
char decimal_binary[40];
int byte_start = 0;
if(symbol->nullchar != 0x00) {
for(i = 0; i < inputlen; i++) {
if(source[i] == symbol->nullchar) {
source[i] = 0x00;
}
}
}
sp = 0;
tp = 0;
latch = 0;
memset(c40_buffer, 0, 6);
c40_p = 0;
memset(text_buffer, 0, 6);
text_p = 0;
memset(edi_buffer, 0, 6);
edi_p = 0;
strcpy(decimal_binary, "");
if(symbol->input_mode == GS1_MODE) { gs1 = 1; } else { gs1 = 0; }
if(gs1) { target[tp] = 232; tp++; } /* FNC1 */
/* Step A */
current_mode = C1_ASCII;
next_mode = C1_ASCII;
do {
if(current_mode != next_mode) {
/* Change mode */
switch(next_mode) {
case C1_C40: target[tp] = 230; tp++; break;
case C1_TEXT: target[tp] = 239; tp++; break;
case C1_EDI: target[tp] = 238; tp++; break;
case C1_BYTE: target[tp] = 231; tp++; break;
}
}
if((current_mode != C1_BYTE) && (next_mode == C1_BYTE)) { byte_start = tp; }
current_mode = next_mode;
if(current_mode == C1_ASCII) { /* Step B - ASCII encodation */
next_mode = C1_ASCII;
if((inputlen - sp) >= 21) { /* Step B1 */
j = 0;
for(i = 0; i < 21; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 21) {
next_mode = C1_DECIMAL;
strcpy(decimal_binary, "1111");
}
}
if((next_mode == C1_ASCII) && ((inputlen - sp) >= 13)) { /* Step B2 */
j = 0;
for(i = 0; i < 13; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 13) {
latch = 0;
for(i = sp + 13; i < inputlen; i++) {
if(!((source[sp + i] >= '0') && (source[sp + i] <= '9'))) { latch = 1; }
}
if(!(latch)) {
next_mode = C1_DECIMAL;
strcpy(decimal_binary, "1111");
}
}
}
if(next_mode == C1_ASCII) { /* Step B3 */
if(istwodigits(source, sp) && ((sp + 1) != inputlen)) {
target[tp] = (10 * ctoi(source[sp])) + ctoi(source[sp + 1]) + 130;
tp++;
sp += 2;
} else {
if((gs1) && (source[sp] == '[')) {
if((inputlen - sp) >= 15) { /* Step B4 */
j = 0;
for(i = 0; i < 15; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 15) {
target[tp] = 236; /* FNC1 and change to Decimal */
tp++; sp++;
next_mode = C1_DECIMAL;
}
}
if((inputlen - sp) >= 7) { /* Step B5 */
j = 0;
for(i = 0; i < 7; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 7) {
latch = 0;
for(i = sp + 7; i < inputlen; i++) {
if(!((source[sp + i] >= '0') && (source[sp + i] <= '9'))) { latch = 1; }
}
if(!(latch)) {
target[tp] = 236; /* FNC1 and change to Decimal */
tp++; sp++;
next_mode = C1_DECIMAL;
}
}
}
}
if(next_mode == C1_ASCII) {
/* Step B6 */
next_mode = c1_look_ahead_test(source, inputlen, sp, current_mode, gs1);
if(next_mode == C1_ASCII) {
if(source[sp] > 127) {
/* Step B7 */
target[tp] = 235; tp++; /* FNC4 */
target[tp] = (source[sp] - 128) + 1; tp++; sp++;
} else {
/* Step B8 */
if((gs1) && (source[sp] == '[')) {
target[tp] = 232; tp++; sp++; /* FNC1 */
} else {
target[tp] = source[sp] + 1; tp++; sp++;
}
}
}
}
}
}
}
if(current_mode == C1_C40) { /* Step C - C40 encodation */
int shift_set, value, done = 0, latch = 0;
next_mode = C1_C40;
if(c40_p == 0) {
if((inputlen - sp) >= 12) {
j = 0;
for(i = 0; i < 12; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 12) {
next_mode = C1_ASCII; done = 1;
}
}
if((inputlen - sp) >= 8) {
j = 0;
for(i = 0; i < 8; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if((inputlen - sp) == 8) {
latch = 1;
} else {
latch = 1;
for(j = sp + 8; j < inputlen; j++) {
if((source[j] <= '0') || (source[j] >= '9')) { latch = 0; }
}
}
if ((j == 8) && latch) {
next_mode = C1_ASCII; done = 1;
}
}
if(!(done)) {
next_mode = c1_look_ahead_test(source, inputlen, sp, current_mode, gs1);
}
}
if(next_mode != C1_C40) {
target[tp] = 255; tp++; /* Unlatch */
} else {
if(source[sp] > 127) {
c40_buffer[c40_p] = 1; c40_p++;
c40_buffer[c40_p] = 30; c40_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] == '[')) {
shift_set = 2;
value = 27; /* FNC1 */
}
if(shift_set != 0) {
c40_buffer[c40_p] = shift_set - 1; c40_p++;
}
c40_buffer[c40_p] = value; c40_p++;
if(c40_p >= 3) {
int iv;
iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
c40_buffer[0] = c40_buffer[3];
c40_buffer[1] = c40_buffer[4];
c40_buffer[2] = c40_buffer[5];
c40_buffer[3] = 0;
c40_buffer[4] = 0;
c40_buffer[5] = 0;
c40_p -= 3;
}
sp++;
}
}
if(current_mode == C1_TEXT) { /* Step D - Text encodation */
int shift_set, value, done = 0, latch = 0;
next_mode = C1_TEXT;
if(text_p == 0) {
if((inputlen - sp) >= 12) {
j = 0;
for(i = 0; i < 12; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 12) {
next_mode = C1_ASCII; done = 1;
}
}
if((inputlen - sp) >= 8) {
j = 0;
for(i = 0; i < 8; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if((inputlen - sp) == 8) {
latch = 1;
} else {
latch = 1;
for(j = sp + 8; j < inputlen; j++) {
if((source[j] <= '0') || (source[j] >= '9')) { latch = 0; }
}
}
if ((j == 8) && latch) {
next_mode = C1_ASCII; done = 1;
}
}
if(!(done)) {
next_mode = c1_look_ahead_test(source, inputlen, sp, current_mode, gs1);
}
}
if(next_mode != C1_TEXT) {
target[tp] = 255; tp++; /* Unlatch */
} else {
if(source[sp] > 127) {
text_buffer[text_p] = 1; text_p++;
text_buffer[text_p] = 30; text_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] == '[')) {
shift_set = 2;
value = 27; /* FNC1 */
}
if(shift_set != 0) {
text_buffer[text_p] = shift_set - 1; text_p++;
}
text_buffer[text_p] = value; text_p++;
if(text_p >= 3) {
int iv;
iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
text_buffer[0] = text_buffer[3];
text_buffer[1] = text_buffer[4];
text_buffer[2] = text_buffer[5];
text_buffer[3] = 0;
text_buffer[4] = 0;
text_buffer[5] = 0;
text_p -= 3;
}
sp++;
}
}
if(current_mode == C1_EDI) { /* Step E - EDI Encodation */
int value = 0, done = 0, latch = 0;
next_mode = C1_EDI;
if(edi_p == 0) {
if((inputlen - sp) >= 12) {
j = 0;
for(i = 0; i < 12; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if (j == 12) {
next_mode = C1_ASCII; done = 1;
}
}
if((inputlen - sp) >= 8) {
j = 0;
for(i = 0; i < 8; i++) {
if((source[sp + i] >= '0') && (source[sp + i] <= '9')) { j++; }
}
if((inputlen - sp) == 8) {
latch = 1;
} else {
latch = 1;
for(j = sp + 8; j < inputlen; j++) {
if((source[j] <= '0') || (source[j] >= '9')) { latch = 0; }
}
}
if ((j == 8) && latch) {
next_mode = C1_ASCII; done = 1;
}
}
if(!((isedi(source[sp]) && isedi(source[sp + 1])) && isedi(source[sp + 2]))) {
next_mode = C1_ASCII;
}
}
if(next_mode != C1_EDI) {
target[tp] = 255; tp++; /* Unlatch */
} else {
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; }
edi_buffer[edi_p] = value; edi_p++;
if(edi_p >= 3) {
int iv;
iv = (1600 * edi_buffer[0]) + (40 * edi_buffer[1]) + (edi_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
edi_buffer[0] = edi_buffer[3];
edi_buffer[1] = edi_buffer[4];
edi_buffer[2] = edi_buffer[5];
edi_buffer[3] = 0;
edi_buffer[4] = 0;
edi_buffer[5] = 0;
edi_p -= 3;
}
sp++;
}
}
if(current_mode == C1_DECIMAL) { /* Step F - Decimal encodation */
int value, decimal_count, data_left;
next_mode = C1_DECIMAL;
data_left = inputlen - sp;
decimal_count = 0;
if(data_left >= 1) {
if((source[sp] >= '0') && (source[sp] <= '9')) { decimal_count = 1; }
}
if(data_left >= 2) {
if((decimal_count == 1) && ((source[sp + 1] >= '0') && (source[sp + 1] <= '9'))) { decimal_count = 2; }
}
if(data_left >= 3) {
if((decimal_count == 2) && ((source[sp + 2] >= '0') && (source[sp + 2] <= '9'))) { decimal_count = 3; }
}
if(decimal_count != 3) {
int bits_left_in_byte, target_count;
int sub_target;
/* Finish Decimal mode and go back to ASCII */
concat(decimal_binary, "111111"); /* Unlatch */
target_count = 3;
if(strlen(decimal_binary) <= 16) { target_count = 2; }
if(strlen(decimal_binary) <= 8) { target_count = 1; }
bits_left_in_byte = (8 * target_count) - strlen(decimal_binary);
if(bits_left_in_byte == 8) { bits_left_in_byte = 0; }
if(bits_left_in_byte == 2) {
concat(decimal_binary, "01");
}
if((bits_left_in_byte == 4) || (bits_left_in_byte == 6)) {
if(decimal_count >= 1) {
int sub_value = ctoi(source[sp]) + 1;
if(sub_value & 0x08) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(sub_value & 0x04) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(sub_value & 0x02) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(sub_value & 0x01) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
sp++;
} else {
concat(decimal_binary, "1111");
}
}
if(bits_left_in_byte == 6) {
concat(decimal_binary, "01");
}
/* Binary buffer is full - transfer to target */
if(target_count >= 1) {
sub_target = 0;
if(decimal_binary[0] == '1') { sub_target += 128; }
if(decimal_binary[1] == '1') { sub_target += 64; }
if(decimal_binary[2] == '1') { sub_target += 32; }
if(decimal_binary[3] == '1') { sub_target += 16; }
if(decimal_binary[4] == '1') { sub_target += 8; }
if(decimal_binary[5] == '1') { sub_target += 4; }
if(decimal_binary[6] == '1') { sub_target += 2; }
if(decimal_binary[7] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
if(target_count >= 2) {
sub_target = 0;
if(decimal_binary[8] == '1') { sub_target += 128; }
if(decimal_binary[9] == '1') { sub_target += 64; }
if(decimal_binary[10] == '1') { sub_target += 32; }
if(decimal_binary[11] == '1') { sub_target += 16; }
if(decimal_binary[12] == '1') { sub_target += 8; }
if(decimal_binary[13] == '1') { sub_target += 4; }
if(decimal_binary[14] == '1') { sub_target += 2; }
if(decimal_binary[15] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
if(target_count == 3) {
sub_target = 0;
if(decimal_binary[16] == '1') { sub_target += 128; }
if(decimal_binary[17] == '1') { sub_target += 64; }
if(decimal_binary[18] == '1') { sub_target += 32; }
if(decimal_binary[19] == '1') { sub_target += 16; }
if(decimal_binary[20] == '1') { sub_target += 8; }
if(decimal_binary[21] == '1') { sub_target += 4; }
if(decimal_binary[22] == '1') { sub_target += 2; }
if(decimal_binary[23] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
next_mode = C1_ASCII;
} else {
/* There are three digits - convert the value to binary */
value = (100 * ctoi(source[sp])) + (10 * ctoi(source[sp + 1])) + ctoi(source[sp + 2]) + 1;
if(value & 0x200) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x100) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x80) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x40) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x20) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x10) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x08) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x04) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x02) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
if(value & 0x01) { concat(decimal_binary, "1"); } else { concat(decimal_binary, "0"); }
sp+= 3;
}
if(strlen(decimal_binary) >= 24) {
int target1 = 0, target2 = 0, target3 = 0;
char temp_binary[40];
/* Binary buffer is full - transfer to target */
if(decimal_binary[0] == '1') { target1 += 128; }
if(decimal_binary[1] == '1') { target1 += 64; }
if(decimal_binary[2] == '1') { target1 += 32; }
if(decimal_binary[3] == '1') { target1 += 16; }
if(decimal_binary[4] == '1') { target1 += 8; }
if(decimal_binary[5] == '1') { target1 += 4; }
if(decimal_binary[6] == '1') { target1 += 2; }
if(decimal_binary[7] == '1') { target1 += 1; }
if(decimal_binary[8] == '1') { target2 += 128; }
if(decimal_binary[9] == '1') { target2 += 64; }
if(decimal_binary[10] == '1') { target2 += 32; }
if(decimal_binary[11] == '1') { target2 += 16; }
if(decimal_binary[12] == '1') { target2 += 8; }
if(decimal_binary[13] == '1') { target2 += 4; }
if(decimal_binary[14] == '1') { target2 += 2; }
if(decimal_binary[15] == '1') { target2 += 1; }
if(decimal_binary[16] == '1') { target3 += 128; }
if(decimal_binary[17] == '1') { target3 += 64; }
if(decimal_binary[18] == '1') { target3 += 32; }
if(decimal_binary[19] == '1') { target3 += 16; }
if(decimal_binary[20] == '1') { target3 += 8; }
if(decimal_binary[21] == '1') { target3 += 4; }
if(decimal_binary[22] == '1') { target3 += 2; }
if(decimal_binary[23] == '1') { target3 += 1; }
target[tp] = target1; tp++;
target[tp] = target2; tp++;
target[tp] = target3; tp++;
strcpy(temp_binary, "");
if(strlen(decimal_binary) > 24) {
for(i = 0; i <= (strlen(decimal_binary) - 24); i++) {
temp_binary[i] = decimal_binary[i + 24];
}
strcpy(decimal_binary, temp_binary);
}
}
}
if(current_mode == C1_BYTE) {
next_mode = C1_BYTE;
if(gs1 && (source[sp] == '[')) {
next_mode = C1_ASCII;
} else {
if(source[sp] <= 127) {
next_mode = c1_look_ahead_test(source, inputlen, sp, current_mode, gs1);
}
}
if(next_mode != C1_BYTE) {
/* Insert byte field length */
if((tp - byte_start) <= 249) {
for(i = tp; i >= byte_start; i--) {
target[i + 1] = target[i];
}
target[byte_start] = (tp - byte_start);
tp++;
} else {
for(i = tp; i >= byte_start; i--) {
target[i + 2] = target[i];
}
target[byte_start] = 249 + ((tp - byte_start) / 250);
target[byte_start + 1] = ((tp - byte_start) % 250);
tp += 2;
}
} else {
target[tp] = source[sp];
tp++;
sp++;
}
}
if(tp > 1480) {
/* Data is too large for symbol */
strcpy(symbol->errtxt, "Input data too long");
return 0;
}
} while (sp < inputlen);
/* Empty buffers */
if(c40_p == 2) {
int iv;
c40_buffer[2] = 1;
iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
target[tp] = 255; tp++; /* Unlatch */
}
if(c40_p == 1) {
int iv;
c40_buffer[1] = 1;
c40_buffer[2] = 31; /* Pad */
iv = (1600 * c40_buffer[0]) + (40 * c40_buffer[1]) + (c40_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
target[tp] = 255; tp++; /* Unlatch */
}
if(text_p == 2) {
int iv;
text_buffer[2] = 1;
iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
target[tp] = 255; tp++; /* Unlatch */
}
if(text_p == 1) {
int iv;
text_buffer[1] = 1;
text_buffer[2] = 31; /* Pad */
iv = (1600 * text_buffer[0]) + (40 * text_buffer[1]) + (text_buffer[2]) + 1;
target[tp] = iv / 256; tp++;
target[tp] = iv % 256; tp++;
target[tp] = 255; tp++; /* Unlatch */
}
if(current_mode == C1_DECIMAL) {
int bits_left_in_byte, target_count;
int sub_target;
/* Finish Decimal mode and go back to ASCII */
concat(decimal_binary, "111111"); /* Unlatch */
target_count = 3;
if(strlen(decimal_binary) <= 16) { target_count = 2; }
if(strlen(decimal_binary) <= 8) { target_count = 1; }
bits_left_in_byte = (8 * target_count) - strlen(decimal_binary);
if(bits_left_in_byte == 8) { bits_left_in_byte = 0; }
if(bits_left_in_byte == 2) {
concat(decimal_binary, "01");
}
if((bits_left_in_byte == 4) || (bits_left_in_byte == 6)) {
concat(decimal_binary, "1111");
}
if(bits_left_in_byte == 6) {
concat(decimal_binary, "01");
}
/* Binary buffer is full - transfer to target */
if(target_count >= 1) {
sub_target = 0;
if(decimal_binary[0] == '1') { sub_target += 128; }
if(decimal_binary[1] == '1') { sub_target += 64; }
if(decimal_binary[2] == '1') { sub_target += 32; }
if(decimal_binary[3] == '1') { sub_target += 16; }
if(decimal_binary[4] == '1') { sub_target += 8; }
if(decimal_binary[5] == '1') { sub_target += 4; }
if(decimal_binary[6] == '1') { sub_target += 2; }
if(decimal_binary[7] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
if(target_count >= 2) {
sub_target = 0;
if(decimal_binary[8] == '1') { sub_target += 128; }
if(decimal_binary[9] == '1') { sub_target += 64; }
if(decimal_binary[10] == '1') { sub_target += 32; }
if(decimal_binary[11] == '1') { sub_target += 16; }
if(decimal_binary[12] == '1') { sub_target += 8; }
if(decimal_binary[13] == '1') { sub_target += 4; }
if(decimal_binary[14] == '1') { sub_target += 2; }
if(decimal_binary[15] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
if(target_count == 3) {
sub_target = 0;
if(decimal_binary[16] == '1') { sub_target += 128; }
if(decimal_binary[17] == '1') { sub_target += 64; }
if(decimal_binary[18] == '1') { sub_target += 32; }
if(decimal_binary[19] == '1') { sub_target += 16; }
if(decimal_binary[20] == '1') { sub_target += 8; }
if(decimal_binary[21] == '1') { sub_target += 4; }
if(decimal_binary[22] == '1') { sub_target += 2; }
if(decimal_binary[23] == '1') { sub_target += 1; }
target[tp] = sub_target; tp++;
}
}
if(current_mode == C1_BYTE) {
/* Insert byte field length */
if((tp - byte_start) <= 249) {
for(i = tp; i >= byte_start; i--) {
target[i + 1] = target[i];
}
target[byte_start] = (tp - byte_start);
tp++;
} else {
for(i = tp; i >= byte_start; i--) {
target[i + 2] = target[i];
}
target[byte_start] = 249 + ((tp - byte_start) / 250);
target[byte_start + 1] = ((tp - byte_start) % 250);
tp += 2;
}
}
/* Re-check length of data */
if(tp > 1480) {
/* Data is too large for symbol */
strcpy(symbol->errtxt, "Input data too long");
return 0;
}
/*
printf("targets:\n");
for(i = 0; i < tp; i++) {
printf("[%d]", target[i]);
}
printf("\n");
*/
return tp;
}
void block_copy(struct zint_symbol *symbol, char grid[][120], int start_row, int start_col, int height, int width, int row_offset, int col_offset) {
int i, j;
for(i = start_row; i < (start_row + height); i++) {
for(j = start_col; j < (start_col + width); j++) {
if(grid[i][j] == '1') {
set_module(symbol, i + row_offset, j + col_offset);
}
}
}
}
int code_one(struct zint_symbol *symbol, unsigned char source[])
{
int size = 1, i, j, data_blocks;
unsigned int data[1500], ecc[600];
unsigned int sub_data[190], sub_ecc[75];
unsigned int stream[2100];
int data_length;
char datagrid[136][120];
int row, col;
if((symbol->option_2 < 0) || (symbol->option_2 > 8)) {
strcpy(symbol->errtxt, "Invalid symbol size");
return ERROR_INVALID_OPTION;
}
for(i = 0; i < 1500; i++) { data[i] = 0; }
data_length = c1_encode(symbol, source, data);
if(data_length == 0) {
return ERROR_TOO_LONG;
}
for(i = 7; i >= 0; i--) {
if(c1_data_length[i] >= data_length) {
size = i + 1;
}
}
if(symbol->option_2 > size) {
size = symbol->option_2;
}
for(i = data_length; i < c1_data_length[size - 1]; i++) {
data[i] = 129; /* Pad */
}
/* Calculate error correction data */
data_length = c1_data_length[size - 1];
for(i = 0; i < 190; i++) { sub_data[i] = 0; }
for(i = 0; i < 75; i++) { sub_ecc[i] = 0; }
data_blocks = c1_blocks[size - 1];
/*
Section 2.2.5.1 states:
"The polynomial arithmetic... is calculated using bit-wise modulo 2 arithmetic
and byte-wise modulo 100101101 arithmetic (this is a Galois Field of 2^8 with
100101101 representing the field's prime modulus polynomial:
x^8 + x^5 + x^3 + x^2 + 1)."
This is the same as Data Matrix (ISO/IEC 16022) however the calculations in Appendix F
of the Code One specification do not agree with those in Annex E of ISO/IEC 16022.
For example Code One Appendix F states:
"The polynomial divisor for generating ten check characters for Version T-16
and Version A is:
g(x)=x^10 + 136x^9 + 141x^8 + 113x^7 + 76x^6 + 218x^5 + 43x^4 + 85x^3
+ 182x^2 + 31x + 52."
Whereas ISO/IEC 16022 Annex E states:
"The polynomial divisor for generating 10 check characters is:
g(x)=x^10 + 61x^9 + 110x^8 + 255x^7 + 116x^6 + 248x^5 + 223x^4 + 166x^3
+ 185x^2 + 24x + 28."
For this code I have assumed that ISO/IEC 16022 is correct and the USS Code One
specifications are incorrect
*/
rs_init_gf(0x12d);
rs_init_code(c1_ecc_blocks[size - 1], 1);
for(i = 0; i < data_blocks; i++) {
for(j = 0; j < c1_data_blocks[size - 1]; j++) {
sub_data[j] = data[j * data_blocks + i];
}
rs_encode_long(c1_data_blocks[size - 1], sub_data, sub_ecc);
for(j = 0; j < c1_ecc_blocks[size - 1]; j++) {
ecc[c1_ecc_length[size - 1] - (j * data_blocks + i) - 1] = sub_ecc[j];
}
}
rs_free();
/* "Stream" combines data and error correction data */
for(i = 0; i < data_length; i++) {
stream[i] = data[i];
}
for(i = 0; i < c1_ecc_length[size - 1]; i++) {
stream[data_length + i] = ecc[i];
}
for(i = 0; i < 136; i++) {
for(j = 0; j < 120; j++) {
datagrid[i][j] = '0';
}
}
i = 0;
for(row = 0; row < c1_grid_height[size - 1]; row++) {
for(col = 0; col < c1_grid_width[size - 1]; col++) {
if(stream[i] & 0x80) { datagrid[row * 2][col * 4] = '1'; }
if(stream[i] & 0x40) { datagrid[row * 2][(col * 4) + 1] = '1'; }
if(stream[i] & 0x20) { datagrid[row * 2][(col * 4) + 2] = '1'; }
if(stream[i] & 0x10) { datagrid[row * 2][(col * 4) + 3] = '1'; }
if(stream[i] & 0x08) { datagrid[(row * 2) + 1][col * 4] = '1'; }
if(stream[i] & 0x04) { datagrid[(row * 2) + 1][(col * 4) + 1] = '1'; }
if(stream[i] & 0x02) { datagrid[(row * 2) + 1][(col * 4) + 2] = '1'; }
if(stream[i] & 0x01) { datagrid[(row * 2) + 1][(col * 4) + 3] = '1'; }
i++;
}
}
/* for(i = 0; i < (c1_grid_height[size - 1] * 2); i++) {
for(j = 0; j < (c1_grid_width[size - 1] * 4); j++) {
printf("%c", datagrid[i][j]);
}
printf("\n");
} */
symbol->rows = c1_height[size - 1];
symbol->width = c1_width[size - 1];
switch(size) {
case 1: /* Version A */
central_finder(symbol, 6, 3, 1);
vert(symbol, 4, 6, 1);
vert(symbol, 12, 5, 0);
set_module(symbol, 5, 12);
spigot(symbol, 0);
spigot(symbol, 15);
block_copy(symbol, datagrid, 0, 0, 5, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 5, 12, 0, 2);
block_copy(symbol, datagrid, 5, 0, 5, 12, 6, 0);
block_copy(symbol, datagrid, 5, 12, 5, 4, 6, 2);
break;
case 2: /* Version B */
central_finder(symbol, 8, 4, 1);
vert(symbol, 4, 8, 1);
vert(symbol, 16, 7, 0);
set_module(symbol, 7, 16);
spigot(symbol, 0);
spigot(symbol, 21);
block_copy(symbol, datagrid, 0, 0, 7, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 7, 16, 0, 2);
block_copy(symbol, datagrid, 7, 0, 7, 16, 8, 0);
block_copy(symbol, datagrid, 7, 16, 7, 4, 8, 2);
break;
case 3: /* Version C */
central_finder(symbol, 11, 4, 2);
vert(symbol, 4, 11, 1);
vert(symbol, 26, 13, 1);
vert(symbol, 4, 10, 0);
vert(symbol, 26, 10, 0);
spigot(symbol, 0);
spigot(symbol, 27);
block_copy(symbol, datagrid, 0, 0, 10, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 10, 20, 0, 2);
block_copy(symbol, datagrid, 0, 24, 10, 4, 0, 4);
block_copy(symbol, datagrid, 10, 0, 10, 4, 8, 0);
block_copy(symbol, datagrid, 10, 4, 10, 20, 8, 2);
block_copy(symbol, datagrid, 10, 24, 10, 4, 8, 4);
break;
case 4: /* Version D */
central_finder(symbol, 16, 5, 1);
vert(symbol, 4, 16, 1);
vert(symbol, 20, 16, 1);
vert(symbol, 36, 16, 1);
vert(symbol, 4, 15, 0);
vert(symbol, 20, 15, 0);
vert(symbol, 36, 15, 0);
spigot(symbol, 0);
spigot(symbol, 12);
spigot(symbol, 27);
spigot(symbol, 39);
block_copy(symbol, datagrid, 0, 0, 15, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 15, 14, 0, 2);
block_copy(symbol, datagrid, 0, 18, 15, 14, 0, 4);
block_copy(symbol, datagrid, 0, 32, 15, 4, 0, 6);
block_copy(symbol, datagrid, 15, 0, 15, 4, 10, 0);
block_copy(symbol, datagrid, 15, 4, 15, 14, 10, 2);
block_copy(symbol, datagrid, 15, 18, 15, 14, 10, 4);
block_copy(symbol, datagrid, 15, 32, 15, 4, 10, 6);
break;
case 5: /* Version E */
central_finder(symbol, 22, 5, 2);
vert(symbol, 4, 22, 1);
vert(symbol, 26, 24, 1);
vert(symbol, 48, 22, 1);
vert(symbol, 4, 21, 0);
vert(symbol, 26, 21, 0);
vert(symbol, 48, 21, 0);
spigot(symbol, 0);
spigot(symbol, 12);
spigot(symbol, 39);
spigot(symbol, 51);
block_copy(symbol, datagrid, 0, 0, 21, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 21, 20, 0, 2);
block_copy(symbol, datagrid, 0, 24, 21, 20, 0, 4);
block_copy(symbol, datagrid, 0, 44, 21, 4, 0, 6);
block_copy(symbol, datagrid, 21, 0, 21, 4, 10, 0);
block_copy(symbol, datagrid, 21, 4, 21, 20, 10, 2);
block_copy(symbol, datagrid, 21, 24, 21, 20, 10, 4);
block_copy(symbol, datagrid, 21, 44, 21, 4, 10, 6);
break;
case 6: /* Version F */
central_finder(symbol, 31, 5, 3);
vert(symbol, 4, 31, 1);
vert(symbol, 26, 35, 1);
vert(symbol, 48, 31, 1);
vert(symbol, 70, 35, 1);
vert(symbol, 4, 30, 0);
vert(symbol, 26, 30, 0);
vert(symbol, 48, 30, 0);
vert(symbol, 70, 30, 0);
spigot(symbol, 0);
spigot(symbol, 12);
spigot(symbol, 24);
spigot(symbol, 45);
spigot(symbol, 57);
spigot(symbol, 69);
block_copy(symbol, datagrid, 0, 0, 30, 4, 0, 0);
block_copy(symbol, datagrid, 0, 4, 30, 20, 0, 2);
block_copy(symbol, datagrid, 0, 24, 30, 20, 0, 4);
block_copy(symbol, datagrid, 0, 44, 30, 20, 0, 6);
block_copy(symbol, datagrid, 0, 64, 30, 4, 0, 8);
block_copy(symbol, datagrid, 30, 0, 30, 4, 10, 0);
block_copy(symbol, datagrid, 30, 4, 30, 20, 10, 2);
block_copy(symbol, datagrid, 30, 24, 30, 20, 10, 4);
block_copy(symbol, datagrid, 30, 44, 30, 20, 10, 6);
block_copy(symbol, datagrid, 30, 64, 30, 4, 10, 8);
break;
case 7: /* Version G */
central_finder(symbol, 47, 6, 2);
vert(symbol, 6, 47, 1);
vert(symbol, 27, 49, 1);
vert(symbol, 48, 47, 1);
vert(symbol, 69, 49, 1);
vert(symbol, 90, 47, 1);
vert(symbol, 6, 46, 0);
vert(symbol, 27, 46, 0);
vert(symbol, 48, 46, 0);
vert(symbol, 69, 46, 0);
vert(symbol, 90, 46, 0);
spigot(symbol, 0);
spigot(symbol, 12);
spigot(symbol, 24);
spigot(symbol, 36);
spigot(symbol, 67);
spigot(symbol, 79);
spigot(symbol, 91);
spigot(symbol, 103);
block_copy(symbol, datagrid, 0, 0, 46, 6, 0, 0);
block_copy(symbol, datagrid, 0, 6, 46, 19, 0, 2);
block_copy(symbol, datagrid, 0, 25, 46, 19, 0, 4);
block_copy(symbol, datagrid, 0, 44, 46, 19, 0, 6);
block_copy(symbol, datagrid, 0, 63, 46, 19, 0, 8);
block_copy(symbol, datagrid, 0, 82, 46, 6, 0, 10);
block_copy(symbol, datagrid, 46, 0, 46, 6, 12, 0);
block_copy(symbol, datagrid, 46, 6, 46, 19, 12, 2);
block_copy(symbol, datagrid, 46, 25, 46, 19, 12, 4);
block_copy(symbol, datagrid, 46, 44, 46, 19, 12, 6);
block_copy(symbol, datagrid, 46, 63, 46, 19, 12, 8);
block_copy(symbol, datagrid, 46, 82, 46, 6, 12, 10);
break;
case 8: /* Version H */
central_finder(symbol, 69, 6, 3);
vert(symbol, 6, 69, 1);
vert(symbol, 26, 73, 1);
vert(symbol, 46, 69, 1);
vert(symbol, 66, 73, 1);
vert(symbol, 86, 69, 1);
vert(symbol, 106, 73, 1);
vert(symbol, 126, 69, 1);
vert(symbol, 6, 68, 0);
vert(symbol, 26, 68, 0);
vert(symbol, 46, 68, 0);
vert(symbol, 66, 68, 0);
vert(symbol, 86, 68, 0);
vert(symbol, 106, 68, 0);
vert(symbol, 126, 68, 0);
spigot(symbol, 0);
spigot(symbol, 12);
spigot(symbol, 24);
spigot(symbol, 36);
spigot(symbol, 48);
spigot(symbol, 60);
spigot(symbol, 87);
spigot(symbol, 99);
spigot(symbol, 111);
spigot(symbol, 123);
spigot(symbol, 135);
spigot(symbol, 147);
block_copy(symbol, datagrid, 0, 0, 68, 6, 0, 0);
block_copy(symbol, datagrid, 0, 6, 68, 18, 0, 2);
block_copy(symbol, datagrid, 0, 24, 68, 18, 0, 4);
block_copy(symbol, datagrid, 0, 42, 68, 18, 0, 6);
block_copy(symbol, datagrid, 0, 60, 68, 18, 0, 8);
block_copy(symbol, datagrid, 0, 78, 68, 18, 0, 10);
block_copy(symbol, datagrid, 0, 96, 68, 18, 0, 12);
block_copy(symbol, datagrid, 0, 114, 68, 6, 0, 14);
block_copy(symbol, datagrid, 68, 0, 68, 6, 12, 0);
block_copy(symbol, datagrid, 68, 6, 68, 18, 12, 2);
block_copy(symbol, datagrid, 68, 24, 68, 18, 12, 4);
block_copy(symbol, datagrid, 68, 42, 68, 18, 12, 6);
block_copy(symbol, datagrid, 68, 60, 68, 18, 12, 8);
block_copy(symbol, datagrid, 68, 78, 68, 18, 12, 10);
block_copy(symbol, datagrid, 68, 96, 68, 18, 12, 12);
block_copy(symbol, datagrid, 68, 114, 68, 6, 12, 14);
break;
}
for(i = 0; i < symbol->rows; i++) {
symbol->row_height[i] = 1;
}
return 0;
}
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