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Change-Id: Ic6e05d89ecd62fc34f82b23dcf306c93764aec4b
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+/*
+ * qrencode - QR Code encoder
+ *
+ * QR Code specification in convenient format.
+ * Copyright (C) 2006-2011 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 __QRSPEC_H__
+#define __QRSPEC_H__
+
+#include "qrencode.h"
+
+/******************************************************************************
+ * Version and capacity
+ *****************************************************************************/
+
+/**
+ * Maximum width of a symbol
+ */
+#define QRSPEC_WIDTH_MAX 177
+
+/**
+ * Return maximum data code length (bytes) for the version.
+ * @param version
+ * @param level
+ * @return maximum size (bytes)
+ */
+extern int QRspec_getDataLength(int version, QRecLevel level);
+
+/**
+ * Return maximum error correction code length (bytes) for the version.
+ * @param version
+ * @param level
+ * @return ECC size (bytes)
+ */
+extern int QRspec_getECCLength(int version, QRecLevel level);
+
+/**
+ * Return a version number that satisfies the input code length.
+ * @param size input code length (byte)
+ * @param level
+ * @return version number
+ */
+extern int QRspec_getMinimumVersion(int size, QRecLevel level);
+
+/**
+ * Return the width of the symbol for the version.
+ * @param version
+ * @return width
+ */
+extern int QRspec_getWidth(int version);
+
+/**
+ * Return the numer of remainder bits.
+ * @param version
+ * @return number of remainder bits
+ */
+extern int QRspec_getRemainder(int version);
+
+/******************************************************************************
+ * Length indicator
+ *****************************************************************************/
+
+/**
+ * Return the size of lenght indicator for the mode and version.
+ * @param mode
+ * @param version
+ * @return the size of the appropriate length indicator (bits).
+ */
+extern int QRspec_lengthIndicator(QRencodeMode mode, int version);
+
+/**
+ * Return the maximum length for the mode and version.
+ * @param mode
+ * @param version
+ * @return the maximum length (bytes)
+ */
+extern int QRspec_maximumWords(QRencodeMode mode, int version);
+
+/******************************************************************************
+ * Error correction code
+ *****************************************************************************/
+
+/**
+ * Return an array of ECC specification.
+ * @param version
+ * @param level
+ * @param spec an array of ECC specification contains as following:
+ * {# of type1 blocks, # of data code, # of ecc code,
+ * # of type2 blocks, # of data code}
+ */
+void QRspec_getEccSpec(int version, QRecLevel level, int spec[5]);
+
+#define QRspec_rsBlockNum(__spec__) (__spec__[0] + __spec__[3])
+#define QRspec_rsBlockNum1(__spec__) (__spec__[0])
+#define QRspec_rsDataCodes1(__spec__) (__spec__[1])
+#define QRspec_rsEccCodes1(__spec__) (__spec__[2])
+#define QRspec_rsBlockNum2(__spec__) (__spec__[3])
+#define QRspec_rsDataCodes2(__spec__) (__spec__[4])
+#define QRspec_rsEccCodes2(__spec__) (__spec__[2])
+
+#define QRspec_rsDataLength(__spec__) \
+ ((QRspec_rsBlockNum1(__spec__) * QRspec_rsDataCodes1(__spec__)) + \
+ (QRspec_rsBlockNum2(__spec__) * QRspec_rsDataCodes2(__spec__)))
+#define QRspec_rsEccLength(__spec__) \
+ (QRspec_rsBlockNum(__spec__) * QRspec_rsEccCodes1(__spec__))
+
+/******************************************************************************
+ * Version information pattern
+ *****************************************************************************/
+
+/**
+ * Return BCH encoded version information pattern that is used for the symbol
+ * of version 7 or greater. Use lower 18 bits.
+ * @param version
+ * @return BCH encoded version information pattern
+ */
+extern unsigned int QRspec_getVersionPattern(int version);
+
+/******************************************************************************
+ * Format information
+ *****************************************************************************/
+
+/**
+ * Return BCH encoded format information pattern.
+ * @param mask
+ * @param level
+ * @return BCH encoded format information pattern
+ */
+extern unsigned int QRspec_getFormatInfo(int mask, QRecLevel level);
+
+/******************************************************************************
+ * Frame
+ *****************************************************************************/
+
+/**
+ * Return a copy of initialized frame.
+ * When the same version is requested twice or more, a copy of cached frame
+ * is returned.
+ * @param version
+ * @return Array of unsigned char. You can free it by free().
+ */
+extern unsigned char *QRspec_newFrame(int version);
+
+/**
+ * Clear the frame cache. Typically for debug.
+ */
+extern void QRspec_clearCache(void);
+
+/******************************************************************************
+ * Mode indicator
+ *****************************************************************************/
+
+/**
+ * Mode indicator. See Table 2 of JIS X0510:2004, pp.16.
+ */
+#define QRSPEC_MODEID_ECI 7
+#define QRSPEC_MODEID_NUM 1
+#define QRSPEC_MODEID_AN 2
+#define QRSPEC_MODEID_8 4
+#define QRSPEC_MODEID_KANJI 8
+#define QRSPEC_MODEID_FNC1FIRST 5
+#define QRSPEC_MODEID_FNC1SECOND 9
+#define QRSPEC_MODEID_STRUCTURE 3
+#define QRSPEC_MODEID_TERMINATOR 0
+
+#endif /* __QRSPEC_H__ */