kite_lucs
+419
-419
@@ -1,419 +1,419 @@
|
||||
|
||||
/*
|
||||
* qrencode - QR Code encoder
|
||||
*
|
||||
* Copyright (C) 2006,2007 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
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "qrencode.h"
|
||||
#include "qrencode_inner.h"
|
||||
#include "qrspec.h"
|
||||
#include "bistream.h"
|
||||
#include "qrinput.h"
|
||||
#include "rscode.h"
|
||||
#include "split.h"
|
||||
#include "mask.h"
|
||||
|
||||
/******************************************************************************
|
||||
* Raw code
|
||||
*****************************************************************************/
|
||||
|
||||
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(QRinput *input)
|
||||
{
|
||||
QRRawCode *raw;
|
||||
int *spec;
|
||||
int i;
|
||||
RSblock *rsblock;
|
||||
unsigned char *p;
|
||||
|
||||
p = QRinput_getByteStream(input);
|
||||
if(p == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
raw = (QRRawCode *)malloc(sizeof(QRRawCode));
|
||||
raw->datacode = p;
|
||||
spec = QRspec_getEccSpec(input->version, input->level);
|
||||
raw->version = input->version;
|
||||
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++;
|
||||
}
|
||||
raw->b1 = QRspec_rsBlockNum1(spec);
|
||||
raw->dataLength = QRspec_rsBlockNum1(spec) * QRspec_rsDataCodes1(spec)
|
||||
+ QRspec_rsBlockNum2(spec) * QRspec_rsDataCodes2(spec);
|
||||
raw->eccLength = QRspec_rsBlockNum(spec) * QRspec_rsEccCodes1(spec);
|
||||
raw->count = 0;
|
||||
free(spec);
|
||||
return raw;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a code (byte).
|
||||
* This function can be called iteratively.
|
||||
* @param raw raw code.
|
||||
* @return code
|
||||
*/
|
||||
unsigned char QRraw_getCode(QRRawCode *raw)
|
||||
{
|
||||
int col, row;
|
||||
unsigned char ret;
|
||||
|
||||
if(raw->count < raw->dataLength) {
|
||||
row = raw->count % raw->blocks;
|
||||
col = raw->count / raw->blocks;
|
||||
if(col >= raw->rsblock[row].dataLength) {
|
||||
row += raw->b1;
|
||||
}
|
||||
ret = raw->rsblock[row].data[col];
|
||||
} else if(raw->count < raw->dataLength + raw->eccLength) {
|
||||
row = (raw->count - raw->dataLength) % raw->blocks;
|
||||
col = (raw->count - raw->dataLength) / raw->blocks;
|
||||
ret = raw->rsblock[row].ecc[col];
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
raw->count++;
|
||||
return ret;
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Frame filling
|
||||
*****************************************************************************/
|
||||
|
||||
typedef struct {
|
||||
int width;
|
||||
unsigned char *frame;
|
||||
int x, y;
|
||||
int dir;
|
||||
int bit;
|
||||
} FrameFiller;
|
||||
|
||||
static FrameFiller *FrameFiller_new(int width, unsigned char *frame)
|
||||
{
|
||||
FrameFiller *filler;
|
||||
|
||||
filler = (FrameFiller *)malloc(sizeof(FrameFiller));
|
||||
filler->width = width;
|
||||
filler->frame = frame;
|
||||
filler->x = width - 1;
|
||||
filler->y = width - 1;
|
||||
filler->dir = -1;
|
||||
filler->bit = -1;
|
||||
|
||||
return filler;
|
||||
}
|
||||
|
||||
static unsigned char *FrameFiller_next(FrameFiller *filler)
|
||||
{
|
||||
unsigned char *p;
|
||||
int x, y, w;
|
||||
|
||||
if(filler->bit == -1) {
|
||||
filler->bit = 0;
|
||||
return filler->frame + filler->y * filler->width + filler->x;
|
||||
}
|
||||
|
||||
x = filler->x;
|
||||
y = filler->y;
|
||||
p = filler->frame;
|
||||
w = filler->width;
|
||||
|
||||
if(filler->bit == 0) {
|
||||
x--;
|
||||
filler->bit++;
|
||||
} else {
|
||||
x++;
|
||||
y += filler->dir;
|
||||
filler->bit--;
|
||||
}
|
||||
|
||||
if(filler->dir < 0) {
|
||||
if(y < 0) {
|
||||
y = 0;
|
||||
x -= 2;
|
||||
filler->dir = 1;
|
||||
if(x == 6) {
|
||||
x--;
|
||||
y = 9;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if(y == w) {
|
||||
y = w - 1;
|
||||
x -= 2;
|
||||
filler->dir = -1;
|
||||
if(x == 6) {
|
||||
x--;
|
||||
y -= 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
if(x < 0 || y < 0) return NULL;
|
||||
|
||||
filler->x = x;
|
||||
filler->y = y;
|
||||
|
||||
if(p[y * w + x] & 0x80) {
|
||||
// This tail recursion could be optimized.
|
||||
return FrameFiller_next(filler);
|
||||
}
|
||||
return &p[y * w + x];
|
||||
}
|
||||
|
||||
unsigned char *FrameFiller_fillerTest(int version)
|
||||
{
|
||||
int width, length;
|
||||
unsigned char *frame, *p;
|
||||
FrameFiller *filler;
|
||||
int i, j;
|
||||
unsigned char cl = 1;
|
||||
unsigned char ch = 0;
|
||||
|
||||
width = QRspec_getWidth(version);
|
||||
frame = QRspec_newFrame(version);
|
||||
filler = FrameFiller_new(width, frame);
|
||||
length = QRspec_getDataLength(version, QR_ECLEVEL_L)
|
||||
+ QRspec_getECCLength(version, QR_ECLEVEL_L);
|
||||
|
||||
for(i=0; i<length; i++) {
|
||||
for(j=0; j<8; j++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = ch | cl;
|
||||
cl++;
|
||||
if(cl == 9) {
|
||||
cl = 1;
|
||||
ch += 0x10;
|
||||
}
|
||||
}
|
||||
}
|
||||
length = QRspec_getRemainder(version);
|
||||
for(i=0; i<length; i++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0xa0;
|
||||
}
|
||||
p = FrameFiller_next(filler);
|
||||
free(filler);
|
||||
if(p != NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return frame;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Format information
|
||||
*****************************************************************************/
|
||||
|
||||
int QRcode_writeFormatInformation(int width, unsigned char *frame, int mask, QRecLevel level)
|
||||
{
|
||||
unsigned int format;
|
||||
unsigned char v;
|
||||
int i;
|
||||
int blacks = 0;
|
||||
|
||||
format = QRspec_getFormatInfo(mask, level);
|
||||
|
||||
for(i=0; i<8; i++) {
|
||||
if(format & 1) {
|
||||
blacks += 2;
|
||||
v = 0x85;
|
||||
} else {
|
||||
v = 0x84;
|
||||
}
|
||||
frame[width * 8 + width - 1 - i] = v;
|
||||
if(i < 6) {
|
||||
frame[width * i + 8] = v;
|
||||
} else {
|
||||
frame[width * (i + 1) + 8] = v;
|
||||
}
|
||||
format= format >> 1;
|
||||
}
|
||||
for(i=0; i<7; i++) {
|
||||
if(format & 1) {
|
||||
blacks += 2;
|
||||
v = 0x85;
|
||||
} else {
|
||||
v = 0x84;
|
||||
}
|
||||
frame[width * (width - 7 + i) + 8] = v;
|
||||
if(i == 0) {
|
||||
frame[width * 8 + 7] = v;
|
||||
} else {
|
||||
frame[width * 8 + 6 - i] = v;
|
||||
}
|
||||
format= format >> 1;
|
||||
}
|
||||
|
||||
return blacks;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* QR-code encoding
|
||||
*****************************************************************************/
|
||||
|
||||
static QRcode *QRcode_new(int version, int width, unsigned char *data)
|
||||
{
|
||||
QRcode *qrcode;
|
||||
|
||||
qrcode = (QRcode *)malloc(sizeof(QRcode));
|
||||
qrcode->version = version;
|
||||
qrcode->width = width;
|
||||
qrcode->data = data;
|
||||
|
||||
return qrcode;
|
||||
}
|
||||
|
||||
void QRcode_free(QRcode *qrcode)
|
||||
{
|
||||
if(qrcode == NULL) return;
|
||||
|
||||
if(qrcode->data != NULL) {
|
||||
free(qrcode->data);
|
||||
}
|
||||
free(qrcode);
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeMask(QRinput *input, int version, QRecLevel level, int mask)
|
||||
{
|
||||
int width;
|
||||
QRRawCode *raw;
|
||||
unsigned char *frame, *masked, *p, code, bit;
|
||||
FrameFiller *filler;
|
||||
int i, j;
|
||||
QRcode *qrcode;
|
||||
|
||||
QRinput_setVersion(input, version);
|
||||
QRinput_setErrorCorrectionLevel(input, level);
|
||||
|
||||
raw = QRraw_new(input);
|
||||
if(raw == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
version = raw->version;
|
||||
width = QRspec_getWidth(version);
|
||||
frame = QRspec_newFrame(version);
|
||||
filler = FrameFiller_new(width, frame);
|
||||
|
||||
/* inteleaved data and ecc codes */
|
||||
for(i=0; i<raw->dataLength + raw->eccLength; i++) {
|
||||
code = QRraw_getCode(raw);
|
||||
bit = 0x80;
|
||||
for(j=0; j<8; j++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0x02 | ((bit & code) != 0);
|
||||
bit = bit >> 1;
|
||||
}
|
||||
}
|
||||
QRraw_free(raw);
|
||||
/* remainder bits */
|
||||
j = QRspec_getRemainder(version);
|
||||
for(i=0; i<j; i++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0x02;
|
||||
}
|
||||
free(filler);
|
||||
/* masking */
|
||||
if(mask < 0) {
|
||||
masked = Mask_mask(width, frame, level);
|
||||
} else {
|
||||
masked = Mask_makeMask(width, frame, mask);
|
||||
QRcode_writeFormatInformation(width, masked, mask, QRinput_getErrorCorrectionLevel(input));
|
||||
}
|
||||
qrcode = QRcode_new(version, width, masked);
|
||||
|
||||
free(frame);
|
||||
|
||||
return qrcode;
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeInput(QRinput *input, int version, QRecLevel level)
|
||||
{
|
||||
return QRcode_encodeMask(input, version, level, -1);
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeString8bit(const char *string, int version, QRecLevel level)
|
||||
{
|
||||
QRinput *input;
|
||||
QRcode *code;
|
||||
|
||||
input = QRinput_new();
|
||||
QRinput_append(input, QR_MODE_8, strlen(string), (unsigned char *)string);
|
||||
code = QRcode_encodeInput(input, version, level);
|
||||
QRinput_free(input);
|
||||
|
||||
return code;
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeString(const char *string, int version, QRecLevel level, QRencodeMode hint, int casesensitive)
|
||||
{
|
||||
QRinput *input;
|
||||
QRcode *code;
|
||||
|
||||
if(hint != QR_MODE_8 && hint != QR_MODE_KANJI) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
input = QRinput_new();
|
||||
Split_splitStringToQRinput(string, input, version, hint, casesensitive);
|
||||
code = QRcode_encodeInput(input, version, level);
|
||||
QRinput_free(input);
|
||||
|
||||
return code;
|
||||
}
|
||||
|
||||
/*
|
||||
* qrencode - QR Code encoder
|
||||
*
|
||||
* Copyright (C) 2006,2007 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
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <stdlib.h>
|
||||
#include <string.h>
|
||||
|
||||
#include "qrencode.h"
|
||||
#include "qrencode_inner.h"
|
||||
#include "qrspec.h"
|
||||
#include "bistream.h"
|
||||
#include "qrinput.h"
|
||||
#include "rscode.h"
|
||||
#include "split.h"
|
||||
#include "mask.h"
|
||||
|
||||
/******************************************************************************
|
||||
* Raw code
|
||||
*****************************************************************************/
|
||||
|
||||
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(QRinput *input)
|
||||
{
|
||||
QRRawCode *raw;
|
||||
int *spec;
|
||||
int i;
|
||||
RSblock *rsblock;
|
||||
unsigned char *p;
|
||||
|
||||
p = QRinput_getByteStream(input);
|
||||
if(p == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
raw = (QRRawCode *)malloc(sizeof(QRRawCode));
|
||||
raw->datacode = p;
|
||||
spec = QRspec_getEccSpec(input->version, input->level);
|
||||
raw->version = input->version;
|
||||
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++;
|
||||
}
|
||||
raw->b1 = QRspec_rsBlockNum1(spec);
|
||||
raw->dataLength = QRspec_rsBlockNum1(spec) * QRspec_rsDataCodes1(spec)
|
||||
+ QRspec_rsBlockNum2(spec) * QRspec_rsDataCodes2(spec);
|
||||
raw->eccLength = QRspec_rsBlockNum(spec) * QRspec_rsEccCodes1(spec);
|
||||
raw->count = 0;
|
||||
free(spec);
|
||||
return raw;
|
||||
}
|
||||
|
||||
/**
|
||||
* Return a code (byte).
|
||||
* This function can be called iteratively.
|
||||
* @param raw raw code.
|
||||
* @return code
|
||||
*/
|
||||
unsigned char QRraw_getCode(QRRawCode *raw)
|
||||
{
|
||||
int col, row;
|
||||
unsigned char ret;
|
||||
|
||||
if(raw->count < raw->dataLength) {
|
||||
row = raw->count % raw->blocks;
|
||||
col = raw->count / raw->blocks;
|
||||
if(col >= raw->rsblock[row].dataLength) {
|
||||
row += raw->b1;
|
||||
}
|
||||
ret = raw->rsblock[row].data[col];
|
||||
} else if(raw->count < raw->dataLength + raw->eccLength) {
|
||||
row = (raw->count - raw->dataLength) % raw->blocks;
|
||||
col = (raw->count - raw->dataLength) / raw->blocks;
|
||||
ret = raw->rsblock[row].ecc[col];
|
||||
} else {
|
||||
return 0;
|
||||
}
|
||||
raw->count++;
|
||||
return ret;
|
||||
}
|
||||
|
||||
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);
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Frame filling
|
||||
*****************************************************************************/
|
||||
|
||||
typedef struct {
|
||||
int width;
|
||||
unsigned char *frame;
|
||||
int x, y;
|
||||
int dir;
|
||||
int bit;
|
||||
} FrameFiller;
|
||||
|
||||
static FrameFiller *FrameFiller_new(int width, unsigned char *frame)
|
||||
{
|
||||
FrameFiller *filler;
|
||||
|
||||
filler = (FrameFiller *)malloc(sizeof(FrameFiller));
|
||||
filler->width = width;
|
||||
filler->frame = frame;
|
||||
filler->x = width - 1;
|
||||
filler->y = width - 1;
|
||||
filler->dir = -1;
|
||||
filler->bit = -1;
|
||||
|
||||
return filler;
|
||||
}
|
||||
|
||||
static unsigned char *FrameFiller_next(FrameFiller *filler)
|
||||
{
|
||||
unsigned char *p;
|
||||
int x, y, w;
|
||||
|
||||
if(filler->bit == -1) {
|
||||
filler->bit = 0;
|
||||
return filler->frame + filler->y * filler->width + filler->x;
|
||||
}
|
||||
|
||||
x = filler->x;
|
||||
y = filler->y;
|
||||
p = filler->frame;
|
||||
w = filler->width;
|
||||
|
||||
if(filler->bit == 0) {
|
||||
x--;
|
||||
filler->bit++;
|
||||
} else {
|
||||
x++;
|
||||
y += filler->dir;
|
||||
filler->bit--;
|
||||
}
|
||||
|
||||
if(filler->dir < 0) {
|
||||
if(y < 0) {
|
||||
y = 0;
|
||||
x -= 2;
|
||||
filler->dir = 1;
|
||||
if(x == 6) {
|
||||
x--;
|
||||
y = 9;
|
||||
}
|
||||
}
|
||||
} else {
|
||||
if(y == w) {
|
||||
y = w - 1;
|
||||
x -= 2;
|
||||
filler->dir = -1;
|
||||
if(x == 6) {
|
||||
x--;
|
||||
y -= 8;
|
||||
}
|
||||
}
|
||||
}
|
||||
if(x < 0 || y < 0) return NULL;
|
||||
|
||||
filler->x = x;
|
||||
filler->y = y;
|
||||
|
||||
if(p[y * w + x] & 0x80) {
|
||||
// This tail recursion could be optimized.
|
||||
return FrameFiller_next(filler);
|
||||
}
|
||||
return &p[y * w + x];
|
||||
}
|
||||
|
||||
unsigned char *FrameFiller_fillerTest(int version)
|
||||
{
|
||||
int width, length;
|
||||
unsigned char *frame, *p;
|
||||
FrameFiller *filler;
|
||||
int i, j;
|
||||
unsigned char cl = 1;
|
||||
unsigned char ch = 0;
|
||||
|
||||
width = QRspec_getWidth(version);
|
||||
frame = QRspec_newFrame(version);
|
||||
filler = FrameFiller_new(width, frame);
|
||||
length = QRspec_getDataLength(version, QR_ECLEVEL_L)
|
||||
+ QRspec_getECCLength(version, QR_ECLEVEL_L);
|
||||
|
||||
for(i=0; i<length; i++) {
|
||||
for(j=0; j<8; j++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = ch | cl;
|
||||
cl++;
|
||||
if(cl == 9) {
|
||||
cl = 1;
|
||||
ch += 0x10;
|
||||
}
|
||||
}
|
||||
}
|
||||
length = QRspec_getRemainder(version);
|
||||
for(i=0; i<length; i++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0xa0;
|
||||
}
|
||||
p = FrameFiller_next(filler);
|
||||
free(filler);
|
||||
if(p != NULL) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
return frame;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* Format information
|
||||
*****************************************************************************/
|
||||
|
||||
int QRcode_writeFormatInformation(int width, unsigned char *frame, int mask, QRecLevel level)
|
||||
{
|
||||
unsigned int format;
|
||||
unsigned char v;
|
||||
int i;
|
||||
int blacks = 0;
|
||||
|
||||
format = QRspec_getFormatInfo(mask, level);
|
||||
|
||||
for(i=0; i<8; i++) {
|
||||
if(format & 1) {
|
||||
blacks += 2;
|
||||
v = 0x85;
|
||||
} else {
|
||||
v = 0x84;
|
||||
}
|
||||
frame[width * 8 + width - 1 - i] = v;
|
||||
if(i < 6) {
|
||||
frame[width * i + 8] = v;
|
||||
} else {
|
||||
frame[width * (i + 1) + 8] = v;
|
||||
}
|
||||
format= format >> 1;
|
||||
}
|
||||
for(i=0; i<7; i++) {
|
||||
if(format & 1) {
|
||||
blacks += 2;
|
||||
v = 0x85;
|
||||
} else {
|
||||
v = 0x84;
|
||||
}
|
||||
frame[width * (width - 7 + i) + 8] = v;
|
||||
if(i == 0) {
|
||||
frame[width * 8 + 7] = v;
|
||||
} else {
|
||||
frame[width * 8 + 6 - i] = v;
|
||||
}
|
||||
format= format >> 1;
|
||||
}
|
||||
|
||||
return blacks;
|
||||
}
|
||||
|
||||
/******************************************************************************
|
||||
* QR-code encoding
|
||||
*****************************************************************************/
|
||||
|
||||
static QRcode *QRcode_new(int version, int width, unsigned char *data)
|
||||
{
|
||||
QRcode *qrcode;
|
||||
|
||||
qrcode = (QRcode *)malloc(sizeof(QRcode));
|
||||
qrcode->version = version;
|
||||
qrcode->width = width;
|
||||
qrcode->data = data;
|
||||
|
||||
return qrcode;
|
||||
}
|
||||
|
||||
void QRcode_free(QRcode *qrcode)
|
||||
{
|
||||
if(qrcode == NULL) return;
|
||||
|
||||
if(qrcode->data != NULL) {
|
||||
free(qrcode->data);
|
||||
}
|
||||
free(qrcode);
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeMask(QRinput *input, int version, QRecLevel level, int mask)
|
||||
{
|
||||
int width;
|
||||
QRRawCode *raw;
|
||||
unsigned char *frame, *masked, *p, code, bit;
|
||||
FrameFiller *filler;
|
||||
int i, j;
|
||||
QRcode *qrcode;
|
||||
|
||||
QRinput_setVersion(input, version);
|
||||
QRinput_setErrorCorrectionLevel(input, level);
|
||||
|
||||
raw = QRraw_new(input);
|
||||
if(raw == NULL) {
|
||||
return NULL;
|
||||
}
|
||||
version = raw->version;
|
||||
width = QRspec_getWidth(version);
|
||||
frame = QRspec_newFrame(version);
|
||||
filler = FrameFiller_new(width, frame);
|
||||
|
||||
/* inteleaved data and ecc codes */
|
||||
for(i=0; i<raw->dataLength + raw->eccLength; i++) {
|
||||
code = QRraw_getCode(raw);
|
||||
bit = 0x80;
|
||||
for(j=0; j<8; j++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0x02 | ((bit & code) != 0);
|
||||
bit = bit >> 1;
|
||||
}
|
||||
}
|
||||
QRraw_free(raw);
|
||||
/* remainder bits */
|
||||
j = QRspec_getRemainder(version);
|
||||
for(i=0; i<j; i++) {
|
||||
p = FrameFiller_next(filler);
|
||||
*p = 0x02;
|
||||
}
|
||||
free(filler);
|
||||
/* masking */
|
||||
if(mask < 0) {
|
||||
masked = Mask_mask(width, frame, level);
|
||||
} else {
|
||||
masked = Mask_makeMask(width, frame, mask);
|
||||
QRcode_writeFormatInformation(width, masked, mask, QRinput_getErrorCorrectionLevel(input));
|
||||
}
|
||||
qrcode = QRcode_new(version, width, masked);
|
||||
|
||||
free(frame);
|
||||
|
||||
return qrcode;
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeInput(QRinput *input, int version, QRecLevel level)
|
||||
{
|
||||
return QRcode_encodeMask(input, version, level, -1);
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeString8bit(const char *string, int version, QRecLevel level)
|
||||
{
|
||||
QRinput *input;
|
||||
QRcode *code;
|
||||
|
||||
input = QRinput_new();
|
||||
QRinput_append(input, QR_MODE_8, strlen(string), (unsigned char *)string);
|
||||
code = QRcode_encodeInput(input, version, level);
|
||||
QRinput_free(input);
|
||||
|
||||
return code;
|
||||
}
|
||||
|
||||
QRcode *QRcode_encodeString(const char *string, int version, QRecLevel level, QRencodeMode hint, int casesensitive)
|
||||
{
|
||||
QRinput *input;
|
||||
QRcode *code;
|
||||
|
||||
if(hint != QR_MODE_8 && hint != QR_MODE_KANJI) {
|
||||
return NULL;
|
||||
}
|
||||
|
||||
input = QRinput_new();
|
||||
Split_splitStringToQRinput(string, input, version, hint, casesensitive);
|
||||
code = QRcode_encodeInput(input, version, level);
|
||||
QRinput_free(input);
|
||||
|
||||
return code;
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user