Chromium Code Reviews
chromiumcodereview-hr@appspot.gserviceaccount.com (chromiumcodereview-hr) | Please choose your nickname with Settings | Help | Chromium Project | Gerrit Changes | Sign out
(14)

Side by Side Diff: xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp

Issue 1803723002: Move xfa/src up to xfa/. (Closed) Base URL: https://pdfium.googlesource.com/pdfium.git@master
Patch Set: Rebase to master Created 4 years, 9 months ago
Use n/p to move between diff chunks; N/P to move between comments. Draft comments are only viewable by you.
Jump to:
View unified diff | Download patch
OLDNEW
(Empty)
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 "xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecoder.h"
24
25 #include <memory>
26
27 #include "xfa/src/fxbarcode/common/BC_CommonBitMatrix.h"
28 #include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h"
29 #include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
30 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.h"
31 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixDataBlock.h"
32 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecodedBitStreamParser.h"
33 #include "xfa/src/fxbarcode/datamatrix/BC_DataMatrixVersion.h"
34
35 CBC_DataMatrixDecoder::CBC_DataMatrixDecoder() {
36 m_rsDecoder = NULL;
37 }
38 void CBC_DataMatrixDecoder::Init() {
39 m_rsDecoder =
40 new CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256::DataMatrixField);
41 }
42 CBC_DataMatrixDecoder::~CBC_DataMatrixDecoder() {
43 delete m_rsDecoder;
44 }
45 CBC_CommonDecoderResult* CBC_DataMatrixDecoder::Decode(
46 CBC_CommonBitMatrix* bits,
47 int32_t& e) {
48 CBC_DataMatrixBitMatrixParser parser;
49 parser.Init(bits, e);
50 BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
51 CBC_DataMatrixVersion* version = parser.GetVersion();
52 std::unique_ptr<CFX_ByteArray> codewords(parser.ReadCodewords(e));
53 BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
54 CFX_PtrArray* dataBlocks =
55 CBC_DataMatrixDataBlock::GetDataBlocks(codewords.get(), version, e);
56 BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
57 int32_t dataBlocksCount = dataBlocks->GetSize();
58 int32_t totalBytes = 0;
59 int32_t i, j;
60 for (i = 0; i < dataBlocksCount; i++) {
61 totalBytes +=
62 ((CBC_DataMatrixDataBlock*)(*dataBlocks)[i])->GetNumDataCodewords();
63 }
64 CFX_ByteArray resultBytes;
65 resultBytes.SetSize(totalBytes);
66 for (j = 0; j < dataBlocksCount; j++) {
67 CFX_ByteArray* codewordBytes =
68 ((CBC_DataMatrixDataBlock*)(*dataBlocks)[j])->GetCodewords();
69 int32_t numDataCodewords =
70 ((CBC_DataMatrixDataBlock*)(*dataBlocks)[j])->GetNumDataCodewords();
71 CorrectErrors(*codewordBytes, numDataCodewords, e);
72 if (e != BCExceptionNO) {
73 for (int32_t i = 0; i < dataBlocks->GetSize(); i++) {
74 delete (CBC_DataMatrixDataBlock*)(*dataBlocks)[i];
75 }
76 delete dataBlocks;
77 dataBlocks = NULL;
78 return NULL;
79 }
80 int32_t i;
81 for (i = 0; i < numDataCodewords; i++) {
82 resultBytes[i * dataBlocksCount + j] = (*codewordBytes)[i];
83 }
84 }
85 for (i = 0; i < (dataBlocks->GetSize()); i++) {
86 delete (CBC_DataMatrixDataBlock*)(*dataBlocks)[i];
87 }
88 delete dataBlocks;
89 dataBlocks = NULL;
90 CBC_CommonDecoderResult* resultR =
91 CBC_DataMatrixDecodedBitStreamParser::Decode(resultBytes, e);
92 BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
93 return resultR;
94 }
95 void CBC_DataMatrixDecoder::CorrectErrors(CFX_ByteArray& codewordBytes,
96 int32_t numDataCodewords,
97 int32_t& e) {
98 int32_t numCodewords = codewordBytes.GetSize();
99 CFX_Int32Array codewordsInts;
100 codewordsInts.SetSize(numCodewords);
101 int32_t i;
102 for (i = 0; i < numCodewords; i++) {
103 codewordsInts[i] = codewordBytes[i] & 0xFF;
104 }
105 int32_t numECCodewords = codewordBytes.GetSize() - numDataCodewords;
106 m_rsDecoder->Decode(&codewordsInts, numECCodewords, e);
107 if (e != BCExceptionNO) {
108 e = BCExceptionChecksumException;
109 return;
110 }
111 for (i = 0; i < numDataCodewords; i++) {
112 codewordBytes[i] = (uint8_t)codewordsInts[i];
113 }
114 }
OLDNEW
« no previous file with comments | « xfa/src/fxbarcode/datamatrix/BC_DataMatrixDecoder.h ('k') | xfa/src/fxbarcode/datamatrix/BC_DataMatrixDetector.h » ('j') | no next file with comments »

Powered by Google App Engine
This is Rietveld 408576698