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Side by Side Diff: xfa/src/fxbarcode/src/BC_QRCoderFormatInformation.cpp

Issue 842043002: Organize barcode codes into modules. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@xfa
Patch Set: rebase Created 5 years, 11 months ago
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1 // Copyright 2014 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 // Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
6 // Original code is licensed as follows:
7 /*
8 * Copyright 2007 ZXing authors
9 *
10 * Licensed under the Apache License, Version 2.0 (the "License");
11 * you may not use this file except in compliance with the License.
12 * You may obtain a copy of the License at
13 *
14 * http://www.apache.org/licenses/LICENSE-2.0
15 *
16 * Unless required by applicable law or agreed to in writing, software
17 * distributed under the License is distributed on an "AS IS" BASIS,
18 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
19 * See the License for the specific language governing permissions and
20 * limitations under the License.
21 */
22
23 #include "barcode.h"
24 #include "include/BC_QRCoderErrorCorrectionLevel.h"
25 #include "include/BC_QRCoderFormatInformation.h"
26 const FX_INT32 CBC_QRCoderFormatInformation::FORMAT_INFO_MASK_QR = 0X5412;
27 const FX_INT32 CBC_QRCoderFormatInformation::FORMAT_INFO_DECODE_LOOKUP[32][2] = {
28 {0x5412, 0x00},
29 {0x5125, 0x01},
30 {0x5E7C, 0x02},
31 {0x5B4B, 0x03},
32 {0x45F9, 0x04},
33 {0x40CE, 0x05},
34 {0x4F97, 0x06},
35 {0x4AA0, 0x07},
36 {0x77C4, 0x08},
37 {0x72F3, 0x09},
38 {0x7DAA, 0x0A},
39 {0x789D, 0x0B},
40 {0x662F, 0x0C},
41 {0x6318, 0x0D},
42 {0x6C41, 0x0E},
43 {0x6976, 0x0F},
44 {0x1689, 0x10},
45 {0x13BE, 0x11},
46 {0x1CE7, 0x12},
47 {0x19D0, 0x13},
48 {0x0762, 0x14},
49 {0x0255, 0x15},
50 {0x0D0C, 0x16},
51 {0x083B, 0x17},
52 {0x355F, 0x18},
53 {0x3068, 0x19},
54 {0x3F31, 0x1A},
55 {0x3A06, 0x1B},
56 {0x24B4, 0x1C},
57 {0x2183, 0x1D},
58 {0x2EDA, 0x1E},
59 {0x2BED, 0x1F},
60 };
61 const FX_INT32 CBC_QRCoderFormatInformation::BITS_SET_IN_HALF_BYTE[] =
62 {0, 1, 1, 2, 1, 2, 2, 3, 1, 2, 2, 3, 2, 3, 3, 4};
63 CBC_QRCoderFormatInformation::CBC_QRCoderFormatInformation(FX_INT32 formatInfo)
64 {
65 m_errorCorrectLevl = CBC_QRCoderErrorCorrectionLevel::ForBits((formatInfo >> 3) & 0x03);
66 m_dataMask = (FX_BYTE) (formatInfo & 0x07);
67 }
68 CBC_QRCoderFormatInformation::~CBC_QRCoderFormatInformation()
69 {
70 }
71 FX_INT32 CBC_QRCoderFormatInformation::NumBitsDiffering(FX_INT32 a, FX_INT32 b)
72 {
73 a ^= b;
74 return BITS_SET_IN_HALF_BYTE[a & 0x0F] +
75 BITS_SET_IN_HALF_BYTE[(a >> 4) & 0x0F] +
76 BITS_SET_IN_HALF_BYTE[(a >> 8) & 0x0F] +
77 BITS_SET_IN_HALF_BYTE[(a >> 12) & 0x0F] +
78 BITS_SET_IN_HALF_BYTE[(a >> 16) & 0x0F] +
79 BITS_SET_IN_HALF_BYTE[(a >> 20) & 0x0F] +
80 BITS_SET_IN_HALF_BYTE[(a >> 24) & 0x0F] +
81 BITS_SET_IN_HALF_BYTE[(a >> 28) & 0x0F];
82 }
83 FX_BYTE CBC_QRCoderFormatInformation::GetDataMask()
84 {
85 return m_dataMask;
86 }
87 CBC_QRCoderErrorCorrectionLevel *CBC_QRCoderFormatInformation::GetErrorCorrectio nLevel()
88 {
89 return m_errorCorrectLevl;
90 }
91 CBC_QRCoderFormatInformation* CBC_QRCoderFormatInformation::DecodeFormatInformat ion(FX_INT32 maskedFormatInfo)
92 {
93 CBC_QRCoderFormatInformation* formatInfo = DoDecodeFormatInformation(maskedF ormatInfo);
94 if(formatInfo != NULL) {
95 return formatInfo;
96 }
97 return DoDecodeFormatInformation(maskedFormatInfo ^ FORMAT_INFO_MASK_QR);
98 }
99 CBC_QRCoderFormatInformation* CBC_QRCoderFormatInformation::DoDecodeFormatInform ation(FX_INT32 maskedFormatInfo)
100 {
101 FX_INT32 bestDifference = (FX_INT32)FXSYS_nan();
102 FX_INT32 bestFormatInfo = 0;
103 for(FX_INT32 i = 0; i < 32; i++) {
104 FX_INT32 const* decodeInfo = &FORMAT_INFO_DECODE_LOOKUP[i][0];
105 FX_INT32 targetInfo = decodeInfo[0];
106 if(targetInfo == maskedFormatInfo) {
107 return FX_NEW CBC_QRCoderFormatInformation(decodeInfo[1]);
108 }
109 FX_INT32 bitsDifference = NumBitsDiffering(maskedFormatInfo, targetInfo) ;
110 if(bitsDifference < bestDifference) {
111 bestFormatInfo = decodeInfo[1];
112 bestDifference = bitsDifference;
113 }
114 }
115 if(bestDifference <= 3) {
116 return FX_NEW CBC_QRCoderFormatInformation(bestFormatInfo);
117 }
118 return NULL;
119 }
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