diff options
Diffstat (limited to 'xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp')
-rw-r--r-- | xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp | 104 |
1 files changed, 0 insertions, 104 deletions
diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp deleted file mode 100644 index 3e6de6ef06..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp +++ /dev/null @@ -1,104 +0,0 @@ -// 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/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.h" - -#include <memory> - -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h" -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h" - -CBC_ReedSolomonEncoder::CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field) { - m_field = field; -} -void CBC_ReedSolomonEncoder::Init() { - m_cachedGenerators.Add(new CBC_ReedSolomonGF256Poly(m_field, 1)); -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonEncoder::BuildGenerator(int32_t degree, - int32_t& e) { - if (degree >= m_cachedGenerators.GetSize()) { - CBC_ReedSolomonGF256Poly* lastGenerator = - (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators - [m_cachedGenerators.GetSize() - 1]); - for (int32_t d = m_cachedGenerators.GetSize(); d <= degree; d++) { - CFX_Int32Array temp; - temp.Add(1); - temp.Add(m_field->Exp(d - 1)); - CBC_ReedSolomonGF256Poly temp_poly; - temp_poly.Init(m_field, &temp, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - CBC_ReedSolomonGF256Poly* nextGenerator = - lastGenerator->Multiply(&temp_poly, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - m_cachedGenerators.Add(nextGenerator); - lastGenerator = nextGenerator; - } - } - return (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators[degree]); -} -void CBC_ReedSolomonEncoder::Encode(CFX_Int32Array* toEncode, - int32_t ecBytes, - int32_t& e) { - if (ecBytes == 0) { - e = BCExceptionNoCorrectionBytes; - BC_EXCEPTION_CHECK_ReturnVoid(e); - } - int32_t dataBytes = toEncode->GetSize() - ecBytes; - if (dataBytes <= 0) { - e = BCExceptionNoDataBytesProvided; - BC_EXCEPTION_CHECK_ReturnVoid(e); - } - CBC_ReedSolomonGF256Poly* generator = BuildGenerator(ecBytes, e); - BC_EXCEPTION_CHECK_ReturnVoid(e); - CFX_Int32Array infoCoefficients; - infoCoefficients.SetSize(dataBytes); - for (int32_t x = 0; x < dataBytes; x++) { - infoCoefficients[x] = toEncode->operator[](x); - } - CBC_ReedSolomonGF256Poly info; - info.Init(m_field, &infoCoefficients, e); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CBC_ReedSolomonGF256Poly> infoTemp( - info.MultiplyByMonomial(ecBytes, 1, e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CFX_PtrArray> temp(infoTemp->Divide(generator, e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - CBC_ReedSolomonGF256Poly* remainder = - (CBC_ReedSolomonGF256Poly*)(temp->operator[](1)); - CFX_Int32Array* coefficients = remainder->GetCoefficients(); - int32_t numZeroCoefficients = ecBytes - coefficients->GetSize(); - for (int32_t i = 0; i < numZeroCoefficients; i++) { - (*toEncode)[dataBytes + i] = 0; - } - for (int32_t y = 0; y < coefficients->GetSize(); y++) { - (*toEncode)[dataBytes + numZeroCoefficients + y] = - coefficients->operator[](y); - } - for (int32_t k = 0; k < temp->GetSize(); k++) { - delete (CBC_ReedSolomonGF256Poly*)(*temp)[k]; - } -} -CBC_ReedSolomonEncoder::~CBC_ReedSolomonEncoder() { - for (int32_t i = 0; i < m_cachedGenerators.GetSize(); i++) { - delete (CBC_ReedSolomonGF256Poly*)m_cachedGenerators[i]; - } -} |