1 #ifndef __FORMAT_INFORMATION_H__
2 #define __FORMAT_INFORMATION_H__
8 * Created by Christian Brunschen on 18/05/2008.
9 * Copyright 2008 ZXing authors All rights reserved.
11 * Licensed under the Apache License, Version 2.0 (the "License");
12 * you may not use this file except in compliance with the License.
13 * You may obtain a copy of the License at
15 * http://www.apache.org/licenses/LICENSE-2.0
17 * Unless required by applicable law or agreed to in writing, software
18 * distributed under the License is distributed on an "AS IS" BASIS,
19 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
20 * See the License for the specific language governing permissions and
21 * limitations under the License.
24 #include "ErrorCorrectionLevel.h"
25 #include "../../common/Counted.h"
31 using namespace common;
33 class FormatInformation : public Counted {
35 static int FORMAT_INFO_MASK_QR;
36 static int FORMAT_INFO_DECODE_LOOKUP[][2];
37 static int N_FORMAT_INFO_DECODE_LOOKUPS;
38 static int BITS_SET_IN_HALF_BYTE[];
40 ErrorCorrectionLevel &errorCorrectionLevel_;
41 unsigned char dataMask_;
43 FormatInformation(int formatInfo) :
44 errorCorrectionLevel_(ErrorCorrectionLevel::forBits((formatInfo >> 3) &0x03)),
45 dataMask_((unsigned char)(formatInfo & 0x07)) { }
48 static int numBitsDiffering(unsigned int a, unsigned int b);
49 static Ref<FormatInformation> decodeFormatInformation(int rawFormatInfo);
50 static Ref<FormatInformation> doDecodeFormatInformation(int rawFormatInfo);
51 ErrorCorrectionLevel &getErrorCorrectionLevel() {
52 return errorCorrectionLevel_;
54 unsigned char getDataMask() { return dataMask_; }
55 friend bool operator==(const FormatInformation &a,
56 const FormatInformation &b);
57 friend ostream& operator<<(ostream& out,
58 const FormatInformation& fi);
63 #endif // __FORMAT_INFORMATION_H__