/*
* qrencode - QR Code encoder
*
* Input data chunk class
* 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
*/
#if HAVE_CONFIG_H
# include "config.h"
#endif
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
#include "qrencode.h"
#include "qrspec.h"
#include "mqrspec.h"
#include "bitstream.h"
#include "qrinput.h"
/******************************************************************************
* Utilities
*****************************************************************************/
int QRinput_isSplittableMode(QRencodeMode mode)
{
return (mode >= QR_MODE_NUM && mode <= QR_MODE_KANJI);
}
/******************************************************************************
* Entry of input data
*****************************************************************************/
static QRinput_List *QRinput_List_newEntry(QRencodeMode mode, int size, const unsigned char *data)
{
QRinput_List *entry;
if(QRinput_check(mode, size, data)) {
errno = EINVAL;
return NULL;
}
entry = (QRinput_List *)malloc(sizeof(QRinput_List));
if(entry == NULL) return NULL;
entry->mode = mode;
entry->size = size;
if(size > 0) {
entry->data = (unsigned char *)malloc(size);
if(entry->data == NULL) {
free(entry);
return NULL;
}
memcpy(entry->data, data, size);
}
entry->bstream = NULL;
entry->next = NULL;
return entry;
}
static void QRinput_List_freeEntry(QRinput_List *entry)
{
if(entry != NULL) {
free(entry->data);
BitStream_free(entry->bstream);
free(entry);
}
}
static QRinput_List *QRinput_List_dup(QRinput_List *entry)
{
QRinput_List *n;
n = (QRinput_List *)malloc(sizeof(QRinput_List));
if(n == NULL) return NULL;
n->mode = entry->mode;
n->size = entry->size;
n->data = (unsigned char *)malloc(n->size);
if(n->data == NULL) {
free(n);
return NULL;
}
memcpy(n->data, entry->data, entry->size);
n->bstream = NULL;
n->next = NULL;
return n;
}
/******************************************************************************
* Input Data
*****************************************************************************/
QRinput *QRinput_new(void)
{
return QRinput_new2(0, QR_ECLEVEL_L);
}
QRinput *QRinput_new2(int version, QRecLevel level)
{
QRinput *input;
if(version < 0 || version > QRSPEC_VERSION_MAX || level > QR_ECLEVEL_H) {
errno = EINVAL;
return NULL;
}
input = (QRinput *)malloc(sizeof(QRinput));
if(input == NULL) return NULL;
input->head = NULL;
input->tail = NULL;
input->version = version;
input->level = level;
input->mqr = 0;
input->fnc1 = 0;
return input;
}
QRinput *QRinput_newMQR(int version, QRecLevel level)
{
QRinput *input;
if(version <= 0 || version > MQRSPEC_VERSION_MAX) goto INVALID;
if((MQRspec_getECCLength(version, level) == 0)) goto INVALID;
input = QRinput_new2(version, level);
if(input == NULL) return NULL;
input->mqr = 1;
return input;
INVALID:
errno = EINVAL;
return NULL;
}
int QRinput_getVersion(QRinput *input)
{
return input->version;
}
int QRinput_setVersion(QRinput *input, int version)
{
if(input->mqr || version < 0 || version > QRSPEC_VERSION_MAX) {
errno = EINVAL;
return -1;
}
input->version = version;
return 0;
}
QRecLevel QRinput_getErrorCorrectionLevel(QRinput *input)
{
return input->level;
}
int QRinput_setErrorCorrectionLevel(QRinput *input, QRecLevel level)
{
if(input->mqr || level > QR_ECLEVEL_H) {
errno = EINVAL;
return -1;
}
input->level = level;
return 0;
}
int QRinput_setVersionAndErrorCorrectionLevel(QRinput *input, int version, QRecLevel level)
{
if(input->mqr) {
if(version <= 0 || version > MQRSPEC_VERSION_MAX) goto INVALID;
if((MQRspec_getECCLength(version, level) == 0)) goto INVALID;
} else {
if(version < 0 || version > QRSPEC_VERSION_MAX) goto INVALID;
if(level > QR_ECLEVEL_H) goto INVALID;
}
input->version = version;
input->level = level;
return 0;
INVALID:
errno = EINVAL;
return -1;
}
static void QRinput_appendEntry(QRinput *input, QRinput_List *entry)
{
if(input->tail == NULL) {
input->head = entry;
input->tail = entry;
} else {
input->tail->next = entry;
input->tail = entry;
}
entry->next = NULL;
}
int QRinput_append(QRinput *input, QRencodeMode mode, int size, const unsigned char *data)
{
QRinput_List *entry;
entry = QRinput_List_newEntry(mode, size, data);
if(entry == NULL) {
return -1;
}
QRinput_appendEntry(input, entry);
return 0;
}
/**
* Insert a structured-append header to the head of the input data.
* @param input input data.
* @param size number of structured symbols.
* @param number index number of the symbol. (1 <= number <= size)
* @param parity parity among input data. (NOTE: each symbol of a set of structured symbols has the same parity data)
* @retval 0 success.
* @retval -1 error occurred and errno is set to indeicate the error. See Execptions for the details.
* @throw EINVAL invalid parameter.
* @throw ENOMEM unable to allocate memory.
*/
__STATIC int QRinput_insertStructuredAppendHeader(QRinput *input, int size, int number, unsigned char parity)
{
QRinput_List *entry;
unsigned char buf[3];
if(size > MAX_STRUCTURED_SYMBOLS) {
errno = EINVAL;
return -1;
}
if(number <= 0 || number > size) {
errno = EINVAL;
return -1;
}
buf[0] = (unsigned char)size;
buf[1] = (unsigned char)number;
buf[2] = parity;
entry = QRinput_List_newEntry(QR_MODE_STRUCTURE, 3, buf);
if(entry == NULL) {
return -1;
}
entry->next = input->head;
input->head = entry;
return 0;
}
int QRinput_appendECIheader(QRinput *input, unsigned int ecinum)
{
unsigned char data[4];
if(ecinum > 999999) {
errno = EINVAL;
return -1;
}
/* We manually create byte array of ecinum because
(unsigned char *)&ecinum may cause bus error on some architectures, */
data[0] = ecinum & 0xff;
data[1] = (ecinum >> 8) & 0xff;
data[2] = (ecinum >> 16) & 0xff;
data[3] = (ecinum >> 24) & 0xff;
return QRinput_append(input, QR_MODE_ECI, 4, data);
}
void QRinput_free(QRinput *input)
{
QRinput_List *list, *next;
if(input != NULL) {
list = input->head;
while(list != NULL) {
next = list->next;
QRinput_List_freeEntry(list);
list = next;
}
free(input);
}
}
static unsigned char QRinput_calcParity(QRinput *input)
{
unsigned char parity = 0;
QRinput_List *list;
int i;
list = input->head;
while(list != NULL) {
if(list->mode != QR_MODE_STRUCTURE) {
for(i=list->size-1; i>=0; i--) {
parity ^= list->data[i];
}
}
list = list->next;
}
return parity;
}
QRinput *QRinput_dup(QRinput *input)
{
QRinput *n;
QRinput_List *list, *e;
if(input->mqr) {
n = QRinput_newMQR(input->version, input->level);
} else {
n = QRinput_new2(input->version, input->level);
}
if(n == NULL) return NULL;
list = input->head;
while(list != NULL) {
e = QRinput_List_dup(list);
if(e == NULL) {
QRinput_free(n);
return NULL;
}
QRinput_appendEntry(n, e);
list = list->next;
}
return n;
}
/******************************************************************************
* Numeric data
*****************************************************************************/
/**
* Check the input data.
* @param size
* @param data
* @return result
*/
static int QRinput_checkModeNum(int size, const char *dat
demo.zip （26个子文件） 
demo test 
barcodegentest.pro 873B widget.ui 2KB qrcode mqrspec.c 7KB mmask.c 4KB mask.c 7KB qrencode_inner.h 3KB qrspec.h 6KB split.h 2KB rscode.h 1KB config.h 2KB qrinput.h 4KB qrencode.h 20KB qrspec.c 15KB qrinput.c 38KB mask.h 2KB qrencode.c 20KB rscode.c 9KB bitstream.h 1KB bitstream.c 4KB mmask.h 1KB split.c 8KB mqrspec.h 5KB widget.cpp 2KB main.cpp 164B barcodegentest.pro.user 23KB widget.h 382B资源评论
