/*
* qrencode - QR Code encoder
*
* Input data chunk class
* Copyright (C) 2006, 2007, 2008 Kentaro Fukuchi <fukuchi@megaui.net>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef __QRINPUT_H__
#define __QRINPUT_H__
#include "qrencode.h"
#include "bitstream.h"
/******************************************************************************
* Entry of input data
*****************************************************************************/
typedef struct _QRinput_List QRinput_List;
struct _QRinput_List {
QRencodeMode mode;
int size; ///< Size of data chunk (byte).
unsigned char *data; ///< Data chunk.
BitStream *bstream;
QRinput_List *next;
};
/******************************************************************************
* Input Data
*****************************************************************************/
struct _QRinput {
int version;
QRecLevel level;
QRinput_List *head;
QRinput_List *tail;
};
/**
* Get current error correction level.
* @param input input data.
* @return Current error correcntion level.
*/
extern QRecLevel QRinput_getErrorCorrectionLevel(QRinput *input);
/**
* Set error correction level of the QR-code that is to be encoded.
* @param input input data.
* @param level Error correction level.
*/
extern void QRinput_setErrorCorrectionLevel(QRinput *input, QRecLevel level);
/**
* Get current version.
* @param input input data.
* @return current version.
*/
extern int QRinput_getVersion(QRinput *input);
/**
* Set version of the QR-code that is to be encoded.
* @param input input data.
* @param version version number (0 = auto)
*/
extern void QRinput_setVersion(QRinput *input, int version);
/**
* Pack all bit streams padding bits into a byte array.
* @param input input data.
* @return padded merged byte stream
*/
extern unsigned char *QRinput_getByteStream(QRinput *input);
extern int QRinput_estimateBitsModeNum(int size);
extern int QRinput_estimateBitsModeAn(int size);
extern int QRinput_estimateBitsMode8(int size);
extern int QRinput_estimateBitsModeKanji(int size);
extern int QRinput_estimateBitStreamSize(QRinput *input, int version);
extern BitStream *QRinput_mergeBitStream(QRinput *input);
extern BitStream *QRinput_getBitStream(QRinput *input);
extern const signed char QRinput_anTable[];
extern QRencodeMode QRinput_identifyMode(const char *string);
/**
* Look up the alphabet-numeric convesion table (see JIS X0510:2004, pp.19).
* @param __c__ character
* @return value
*/
#define QRinput_lookAnTable(__c__) \
((__c__ & 0x80)?-1:QRinput_anTable[(int)__c__])
#endif /* __QRINPUT_H__ */
