/**
* qrencode - QR-code encoder
*
* Copyright (C) 2006 Kentaro Fukuchi
*
* 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
* 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 <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "qrencode.h"
#include "qrspec.h"
#include "bitstream.h"
#include "datastream.h"
#include "rscode.h"
/******************************************************************************
* Raw code
*****************************************************************************/
typedef struct {
int dataLength;
unsigned char *data;
int eccLength;
unsigned char *ecc;
} RSblock;
typedef struct {
unsigned char *datacode;
int blocks;
RSblock *rsblock;
} QRRawCode;
static void RSblock_init(RSblock *block, int dl, unsigned char *data, int el)
{
RS *rs;
block->dataLength = dl;
block->data = data;
block->eccLength = el;
block->ecc = (unsigned char *)malloc(el);
rs = init_rs(8, 0x11d, 0, 1, el, 255 - dl - el);
encode_rs_char(rs, data, block->ecc);
}
QRRawCode *QRraw_new(QRenc_DataStream *stream)
{
QRRawCode *raw;
int *spec;
int i;
RSblock *rsblock;
unsigned char *p;
raw = (QRRawCode *)malloc(sizeof(QRRawCode));
raw->datacode = QRenc_getByteStream(stream);
spec = QRspec_getEccSpec(stream->version, stream->level);
raw->blocks = QRspec_rsBlockNum(spec);
raw->rsblock = (RSblock *)malloc(sizeof(RSblock) * raw->blocks);
rsblock = raw->rsblock;
p = raw->datacode;
for(i=0; i<QRspec_rsBlockNum1(spec); i++) {
RSblock_init(rsblock, QRspec_rsDataCodes1(spec), p,
QRspec_rsEccCodes1(spec));
p += QRspec_rsDataCodes1(spec);
rsblock++;
}
for(i=0; i<QRspec_rsBlockNum2(spec); i++) {
RSblock_init(rsblock, QRspec_rsDataCodes2(spec), p,
QRspec_rsEccCodes2(spec));
p += QRspec_rsDataCodes2(spec);
rsblock++;
}
free(spec);
return raw;
}
void QRraw_free(QRRawCode *raw)
{
int i;
free(raw->datacode);
for(i=0; i<raw->blocks; i++) {
free(raw->rsblock[i].ecc);
}
free(raw->rsblock);
free(raw);
}
