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authorDan Sinclair <dsinclair@chromium.org>2016-03-14 14:14:16 -0400
committerDan Sinclair <dsinclair@chromium.org>2016-03-14 14:14:16 -0400
commit1770c021cf998ff1b33855b1397f6ea8ff9f7cd7 (patch)
tree285e39abd4b5872d8cd632b9e331b0667fdc3eae /xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp
parentf766ad219f66543654520f6a1955836f519e26d1 (diff)
downloadpdfium-1770c021cf998ff1b33855b1397f6ea8ff9f7cd7.tar.xz
Move xfa/src up to xfa/.
This CL moves the xfa/src files up to the xfa/ directory and fixes the includes, include guards, and build files. R=tsepez@chromium.org Review URL: https://codereview.chromium.org/1803723002 .
Diffstat (limited to 'xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp')
-rw-r--r--xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp114
1 files changed, 114 insertions, 0 deletions
diff --git a/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp b/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp
new file mode 100644
index 0000000000..3f765aa8f9
--- /dev/null
+++ b/xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.cpp
@@ -0,0 +1,114 @@
+// Copyright 2014 PDFium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
+// Original code is licensed as follows:
+/*
+ * Copyright 2007 ZXing authors
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include "xfa/fxbarcode/datamatrix/BC_DataMatrixDecoder.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+#include "xfa/fxbarcode/datamatrix/BC_DataMatrixBitMatrixParser.h"
+#include "xfa/fxbarcode/datamatrix/BC_DataMatrixDataBlock.h"
+#include "xfa/fxbarcode/datamatrix/BC_DataMatrixDecodedBitStreamParser.h"
+#include "xfa/fxbarcode/datamatrix/BC_DataMatrixVersion.h"
+
+CBC_DataMatrixDecoder::CBC_DataMatrixDecoder() {
+ m_rsDecoder = NULL;
+}
+void CBC_DataMatrixDecoder::Init() {
+ m_rsDecoder =
+ new CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256::DataMatrixField);
+}
+CBC_DataMatrixDecoder::~CBC_DataMatrixDecoder() {
+ delete m_rsDecoder;
+}
+CBC_CommonDecoderResult* CBC_DataMatrixDecoder::Decode(
+ CBC_CommonBitMatrix* bits,
+ int32_t& e) {
+ CBC_DataMatrixBitMatrixParser parser;
+ parser.Init(bits, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CBC_DataMatrixVersion* version = parser.GetVersion();
+ std::unique_ptr<CFX_ByteArray> codewords(parser.ReadCodewords(e));
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CFX_PtrArray* dataBlocks =
+ CBC_DataMatrixDataBlock::GetDataBlocks(codewords.get(), version, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ int32_t dataBlocksCount = dataBlocks->GetSize();
+ int32_t totalBytes = 0;
+ int32_t i, j;
+ for (i = 0; i < dataBlocksCount; i++) {
+ totalBytes +=
+ ((CBC_DataMatrixDataBlock*)(*dataBlocks)[i])->GetNumDataCodewords();
+ }
+ CFX_ByteArray resultBytes;
+ resultBytes.SetSize(totalBytes);
+ for (j = 0; j < dataBlocksCount; j++) {
+ CFX_ByteArray* codewordBytes =
+ ((CBC_DataMatrixDataBlock*)(*dataBlocks)[j])->GetCodewords();
+ int32_t numDataCodewords =
+ ((CBC_DataMatrixDataBlock*)(*dataBlocks)[j])->GetNumDataCodewords();
+ CorrectErrors(*codewordBytes, numDataCodewords, e);
+ if (e != BCExceptionNO) {
+ for (int32_t i = 0; i < dataBlocks->GetSize(); i++) {
+ delete (CBC_DataMatrixDataBlock*)(*dataBlocks)[i];
+ }
+ delete dataBlocks;
+ dataBlocks = NULL;
+ return NULL;
+ }
+ int32_t i;
+ for (i = 0; i < numDataCodewords; i++) {
+ resultBytes[i * dataBlocksCount + j] = (*codewordBytes)[i];
+ }
+ }
+ for (i = 0; i < (dataBlocks->GetSize()); i++) {
+ delete (CBC_DataMatrixDataBlock*)(*dataBlocks)[i];
+ }
+ delete dataBlocks;
+ dataBlocks = NULL;
+ CBC_CommonDecoderResult* resultR =
+ CBC_DataMatrixDecodedBitStreamParser::Decode(resultBytes, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return resultR;
+}
+void CBC_DataMatrixDecoder::CorrectErrors(CFX_ByteArray& codewordBytes,
+ int32_t numDataCodewords,
+ int32_t& e) {
+ int32_t numCodewords = codewordBytes.GetSize();
+ CFX_Int32Array codewordsInts;
+ codewordsInts.SetSize(numCodewords);
+ int32_t i;
+ for (i = 0; i < numCodewords; i++) {
+ codewordsInts[i] = codewordBytes[i] & 0xFF;
+ }
+ int32_t numECCodewords = codewordBytes.GetSize() - numDataCodewords;
+ m_rsDecoder->Decode(&codewordsInts, numECCodewords, e);
+ if (e != BCExceptionNO) {
+ e = BCExceptionChecksumException;
+ return;
+ }
+ for (i = 0; i < numDataCodewords; i++) {
+ codewordBytes[i] = (uint8_t)codewordsInts[i];
+ }
+}