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/*
* qrencode - QR Code encoder
*
* Input data chunk class
* Copyright (C) 2006-2017 Kentaro Fukuchi <kentaro@fukuchi.org>
*
* 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"
int QRinput_isSplittableMode(QRencodeMode mode);
/******************************************************************************
* 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;
int mqr;
int fnc1;
unsigned char appid;
};
/******************************************************************************
* Structured append input data
*****************************************************************************/
typedef struct _QRinput_InputList QRinput_InputList;
struct _QRinput_InputList {
QRinput *input;
QRinput_InputList *next;
};
struct _QRinput_Struct {
int size; ///< number of structured symbols
int parity;
QRinput_InputList *head;
QRinput_InputList *tail;
};
/**
* 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 QRinput *QRinput_dup(QRinput *input);
extern const signed char QRinput_anTable[128];
/**
* 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__])
/**
* Length of a standard mode indicator in bits.
*/
#define MODE_INDICATOR_SIZE 4
/**
* Length of a segment of structured-append header.
*/
#define STRUCTURE_HEADER_SIZE 20
/**
* Maximum number of symbols in a set of structured-appended symbols.
*/
#define MAX_STRUCTURED_SYMBOLS 16
#ifdef WITH_TESTS
extern int QRinput_mergeBitStream(QRinput *input, BitStream *bstream);
extern int QRinput_getBitStream(QRinput *input, BitStream *bstream);
extern int QRinput_estimateBitStreamSize(QRinput *input, int version);
extern int QRinput_splitEntry(QRinput_List *entry, int bytes);
extern int QRinput_lengthOfCode(QRencodeMode mode, int version, int bits);
extern int QRinput_insertStructuredAppendHeader(QRinput *input, int size, int index, unsigned char parity);
#endif
#endif /* QRINPUT_H */
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