diff options
Diffstat (limited to 'xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp')
| -rw-r--r-- | xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp b/xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp new file mode 100644 index 0000000000..7c85c58367 --- /dev/null +++ b/xfa/src/fxbarcode/qrcode/BC_QRBitMatrixParser.cpp @@ -0,0 +1,185 @@ +// 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 "../barcode.h"
+#include "../common/BC_CommonBitMatrix.h"
+#include "BC_QRCoderVersion.h"
+#include "BC_QRCoderFormatInformation.h"
+#include "BC_QRDataMask.h"
+#include "BC_QRBitMatrixParser.h"
+CBC_QRBitMatrixParser::CBC_QRBitMatrixParser()
+{
+}
+void CBC_QRBitMatrixParser::Init(CBC_CommonBitMatrix *bitMatrix, FX_INT32 &e)
+{
+ m_dimension = bitMatrix->GetDimension(e);
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ m_tempBitMatrix = bitMatrix;
+ if(m_dimension < 21 || (m_dimension & 0x03) != 1) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnVoid(e);
+ }
+ m_bitMatrix = m_tempBitMatrix;
+ m_parsedFormatInfo = NULL;
+ m_version = NULL;
+}
+CBC_QRBitMatrixParser::~CBC_QRBitMatrixParser()
+{
+ if(m_parsedFormatInfo != NULL) {
+ delete m_parsedFormatInfo;
+ m_parsedFormatInfo = NULL;
+ }
+ m_version = NULL;
+}
+CBC_QRCoderFormatInformation* CBC_QRBitMatrixParser::ReadFormatInformation(FX_INT32 &e)
+{
+ if(m_parsedFormatInfo != NULL) {
+ return m_parsedFormatInfo;
+ }
+ FX_INT32 formatInfoBits = 0;
+ FX_INT32 j;
+ for( j = 0; j < 6; j++) {
+ formatInfoBits = CopyBit(8, j, formatInfoBits);
+ }
+ formatInfoBits = CopyBit(8, 7, formatInfoBits);
+ formatInfoBits = CopyBit(8, 8, formatInfoBits);
+ formatInfoBits = CopyBit(7, 8, formatInfoBits);
+ for(FX_INT32 i = 5; i >= 0; i--) {
+ formatInfoBits = CopyBit(i, 8, formatInfoBits);
+ }
+ m_parsedFormatInfo = CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
+ if(m_parsedFormatInfo != NULL) {
+ return m_parsedFormatInfo;
+ }
+ FX_INT32 dimension = m_bitMatrix->GetDimension(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ formatInfoBits = 0;
+ FX_INT32 iMin = dimension - 8;
+ for(j = dimension - 1; j >= iMin; j--) {
+ formatInfoBits = CopyBit(j, 8, formatInfoBits);
+ }
+ for(FX_INT32 k = dimension - 7; k < dimension; k++) {
+ formatInfoBits = CopyBit(8, k , formatInfoBits);
+ }
+ m_parsedFormatInfo = CBC_QRCoderFormatInformation::DecodeFormatInformation(formatInfoBits);
+ if(m_parsedFormatInfo != NULL) {
+ return m_parsedFormatInfo;
+ }
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return NULL;
+}
+CBC_QRCoderVersion* CBC_QRBitMatrixParser::ReadVersion(FX_INT32 &e)
+{
+ if(m_version != NULL) {
+ return m_version;
+ }
+ FX_INT32 dimension = m_bitMatrix->GetDimension(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ FX_INT32 provisionVersion = (dimension - 17) >> 2;
+ if(provisionVersion <= 6) {
+ CBC_QRCoderVersion* qrv = CBC_QRCoderVersion::GetVersionForNumber(provisionVersion, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return qrv;
+ }
+ FX_INT32 versionBits = 0;
+ for (FX_INT32 i = 5; i >= 0; i--) {
+ FX_INT32 jMin = dimension - 11;
+ for (FX_INT32 j = dimension - 9; j >= jMin; j--) {
+ versionBits = CopyBit(i, j, versionBits);
+ }
+ }
+ m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ if (m_version != NULL && m_version->GetDimensionForVersion() == dimension) {
+ return m_version;
+ }
+ versionBits = 0;
+ for (FX_INT32 j = 5; j >= 0; j--) {
+ FX_INT32 iMin = dimension - 11;
+ for (FX_INT32 i = dimension - 9; i >= iMin; i--) {
+ versionBits = CopyBit(i, j, versionBits);
+ }
+ }
+ m_version = CBC_QRCoderVersion::DecodeVersionInformation(versionBits, e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ if (m_version != NULL && m_version->GetDimensionForVersion() == dimension) {
+ return m_version;
+ }
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ return NULL;
+}
+FX_INT32 CBC_QRBitMatrixParser::CopyBit(FX_INT32 i, FX_INT32 j, FX_INT32 versionBits)
+{
+ return m_bitMatrix->Get(j, i) ? (versionBits << 1) | 0x1 : versionBits << 1;
+}
+CFX_ByteArray* CBC_QRBitMatrixParser::ReadCodewords(FX_INT32 &e)
+{
+ CBC_QRCoderFormatInformation *formatInfo = ReadFormatInformation(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL)
+ CBC_QRCoderVersion *version = ReadVersion(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CBC_QRDataMask *dataMask = CBC_QRDataMask::ForReference((FX_INT32)(formatInfo->GetDataMask()), e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ FX_INT32 dimension = m_bitMatrix->GetDimension(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ dataMask->UnmaskBitMatirx(m_bitMatrix, dimension);
+ CBC_CommonBitMatrix* cbm = version->BuildFunctionPattern(e);
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ CBC_AutoPtr<CBC_CommonBitMatrix > functionPattern(cbm);
+ FX_BOOL readingUp = TRUE;
+ CFX_ByteArray * temp = FX_NEW CFX_ByteArray;
+ temp->SetSize(version->GetTotalCodeWords());
+ CBC_AutoPtr<CFX_ByteArray> result(temp);
+ FX_INT32 resultOffset = 0;
+ FX_INT32 currentByte = 0;
+ FX_INT32 bitsRead = 0;
+ for(FX_INT32 j = dimension - 1; j > 0; j -= 2) {
+ if(j == 6) {
+ j--;
+ }
+ for(FX_INT32 count = 0; count < dimension; count++) {
+ FX_INT32 i = readingUp ? dimension - 1 - count : count;
+ for(FX_INT32 col = 0; col < 2; col++) {
+ if(!functionPattern->Get(j - col, i)) {
+ bitsRead++;
+ currentByte <<= 1;
+ if(m_bitMatrix->Get(j - col, i)) {
+ currentByte |= 1;
+ }
+ if(bitsRead == 8) {
+ (*result)[resultOffset++] = (FX_BYTE) currentByte;
+ bitsRead = 0;
+ currentByte = 0;
+ }
+ }
+ }
+ }
+ readingUp ^= TRUE;
+ }
+ if(resultOffset != version->GetTotalCodeWords()) {
+ e = BCExceptionRead;
+ BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+ }
+ return result.release();
+}
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