diff options
Diffstat (limited to 'xfa/src/fxbarcode/common/reedsolomon')
8 files changed, 0 insertions, 851 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]; - } -} diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.h b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.h deleted file mode 100644 index 71eacc5e76..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomon.h +++ /dev/null @@ -1,29 +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 - -#ifndef XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_ -#define XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_ - -#include "core/include/fxcrt/fx_basic.h" - -class CBC_ReedSolomonGF256; -class CBC_ReedSolomonGF256Poly; - -class CBC_ReedSolomonEncoder { - private: - CBC_ReedSolomonGF256* m_field; - CFX_PtrArray m_cachedGenerators; - CBC_ReedSolomonGF256Poly* BuildGenerator(int32_t degree, int32_t& e); - - public: - CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field); - virtual ~CBC_ReedSolomonEncoder(); - - void Encode(CFX_Int32Array* toEncode, int32_t ecBytes, int32_t& e); - virtual void Init(); -}; - -#endif // XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_ diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp deleted file mode 100644 index abdcaf0c88..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp +++ /dev/null @@ -1,221 +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_ReedSolomonDecoder.h" - -#include <memory> -#include <utility> - -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h" -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h" - -CBC_ReedSolomonDecoder::CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256* field) { - m_field = field; -} -CBC_ReedSolomonDecoder::~CBC_ReedSolomonDecoder() {} -void CBC_ReedSolomonDecoder::Decode(CFX_Int32Array* received, - int32_t twoS, - int32_t& e) { - CBC_ReedSolomonGF256Poly poly; - poly.Init(m_field, received, e); - BC_EXCEPTION_CHECK_ReturnVoid(e); - CFX_Int32Array syndromeCoefficients; - syndromeCoefficients.SetSize(twoS); - FX_BOOL dataMatrix = FALSE; - FX_BOOL noError = TRUE; - for (int32_t i = 0; i < twoS; i++) { - int32_t eval = poly.EvaluateAt(m_field->Exp(dataMatrix ? i + 1 : i)); - syndromeCoefficients[twoS - 1 - i] = eval; - if (eval != 0) { - noError = FALSE; - } - } - if (noError) { - return; - } - CBC_ReedSolomonGF256Poly syndrome; - syndrome.Init(m_field, &syndromeCoefficients, e); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CBC_ReedSolomonGF256Poly> temp( - m_field->BuildMonomial(twoS, 1, e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CFX_PtrArray> sigmaOmega( - RunEuclideanAlgorithm(temp.get(), &syndrome, twoS, e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CBC_ReedSolomonGF256Poly> sigma( - (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[0]); - std::unique_ptr<CBC_ReedSolomonGF256Poly> omega( - (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[1]); - std::unique_ptr<CFX_Int32Array> errorLocations( - FindErrorLocations(sigma.get(), e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - std::unique_ptr<CFX_Int32Array> errorMagnitudes( - FindErrorMagnitudes(omega.get(), errorLocations.get(), dataMatrix, e)); - BC_EXCEPTION_CHECK_ReturnVoid(e); - for (int32_t k = 0; k < errorLocations->GetSize(); k++) { - int32_t position = - received->GetSize() - 1 - m_field->Log((*errorLocations)[k], e); - BC_EXCEPTION_CHECK_ReturnVoid(e); - if (position < 0) { - e = BCExceptionBadErrorLocation; - BC_EXCEPTION_CHECK_ReturnVoid(e); - } - (*received)[position] = CBC_ReedSolomonGF256::AddOrSubtract( - (*received)[position], (*errorMagnitudes)[k]); - } -} -CFX_PtrArray* CBC_ReedSolomonDecoder::RunEuclideanAlgorithm( - CBC_ReedSolomonGF256Poly* a, - CBC_ReedSolomonGF256Poly* b, - int32_t R, - int32_t& e) { - if (a->GetDegree() < b->GetDegree()) { - CBC_ReedSolomonGF256Poly* temp = a; - a = b; - b = temp; - } - std::unique_ptr<CBC_ReedSolomonGF256Poly> rLast(a->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> r(b->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> sLast(m_field->GetOne()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> s(m_field->GetZero()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> tLast(m_field->GetZero()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> t(m_field->GetOne()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - while (r->GetDegree() >= R / 2) { - std::unique_ptr<CBC_ReedSolomonGF256Poly> rLastLast = std::move(rLast); - std::unique_ptr<CBC_ReedSolomonGF256Poly> sLastLast = std::move(sLast); - std::unique_ptr<CBC_ReedSolomonGF256Poly> tLastlast = std::move(tLast); - rLast = std::move(r); - sLast = std::move(s); - tLast = std::move(t); - if (rLast->IsZero()) { - e = BCExceptionR_I_1IsZero; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - r.reset(rLastLast->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> q(m_field->GetZero()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - int32_t denominatorLeadingTerm = rLast->GetCoefficients(rLast->GetDegree()); - int32_t dltInverse = m_field->Inverse(denominatorLeadingTerm, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - while (r->GetDegree() >= rLast->GetDegree() && !(r->IsZero())) { - int32_t degreeDiff = r->GetDegree() - rLast->GetDegree(); - int32_t scale = - m_field->Multiply(r->GetCoefficients(r->GetDegree()), dltInverse); - std::unique_ptr<CBC_ReedSolomonGF256Poly> build( - m_field->BuildMonomial(degreeDiff, scale, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - q.reset(q->AddOrSubtract(build.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> multiply( - rLast->MultiplyByMonomial(degreeDiff, scale, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - r.reset(r->AddOrSubtract(multiply.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - std::unique_ptr<CBC_ReedSolomonGF256Poly> temp1( - q->Multiply(sLast.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - s.reset(temp1->AddOrSubtract(sLastLast.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> temp5( - q->Multiply(tLast.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - t.reset(temp5->AddOrSubtract(tLastlast.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - int32_t sigmaTildeAtZero = t->GetCoefficients(0); - if (sigmaTildeAtZero == 0) { - e = BCExceptionIsZero; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - int32_t inverse = m_field->Inverse(sigmaTildeAtZero, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> sigma(t->Multiply(inverse, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> omega(r->Multiply(inverse, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - CFX_PtrArray* temp = new CFX_PtrArray; - temp->Add(sigma.release()); - temp->Add(omega.release()); - return temp; -} -CFX_Int32Array* CBC_ReedSolomonDecoder::FindErrorLocations( - CBC_ReedSolomonGF256Poly* errorLocator, - int32_t& e) { - int32_t numErrors = errorLocator->GetDegree(); - if (numErrors == 1) { - std::unique_ptr<CFX_Int32Array> temp(new CFX_Int32Array); - temp->Add(errorLocator->GetCoefficients(1)); - return temp.release(); - } - CFX_Int32Array* tempT = new CFX_Int32Array; - tempT->SetSize(numErrors); - std::unique_ptr<CFX_Int32Array> result(tempT); - int32_t ie = 0; - for (int32_t i = 1; i < 256 && ie < numErrors; i++) { - if (errorLocator->EvaluateAt(i) == 0) { - (*result)[ie] = m_field->Inverse(i, ie); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - ie++; - } - } - if (ie != numErrors) { - e = BCExceptionDegreeNotMatchRoots; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - return result.release(); -} -CFX_Int32Array* CBC_ReedSolomonDecoder::FindErrorMagnitudes( - CBC_ReedSolomonGF256Poly* errorEvaluator, - CFX_Int32Array* errorLocations, - FX_BOOL dataMatrix, - int32_t& e) { - int32_t s = errorLocations->GetSize(); - CFX_Int32Array* temp = new CFX_Int32Array; - temp->SetSize(s); - std::unique_ptr<CFX_Int32Array> result(temp); - for (int32_t i = 0; i < s; i++) { - int32_t xiInverse = m_field->Inverse(errorLocations->operator[](i), e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - int32_t denominator = 1; - for (int32_t j = 0; j < s; j++) { - if (i != j) { - denominator = m_field->Multiply( - denominator, CBC_ReedSolomonGF256::AddOrSubtract( - 1, m_field->Multiply(errorLocations->operator[](j), - xiInverse))); - } - } - int32_t temp = m_field->Inverse(denominator, temp); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - (*result)[i] = - m_field->Multiply(errorEvaluator->EvaluateAt(xiInverse), temp); - } - return result.release(); -} diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h deleted file mode 100644 index 092033ca39..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h +++ /dev/null @@ -1,35 +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 - -#ifndef XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_ -#define XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_ - -#include "core/include/fxcrt/fx_basic.h" - -class CBC_ReedSolomonGF256; -class CBC_ReedSolomonGF256Poly; - -class CBC_ReedSolomonDecoder { - private: - CBC_ReedSolomonGF256* m_field; - - public: - CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256* field); - virtual ~CBC_ReedSolomonDecoder(); - void Decode(CFX_Int32Array* received, int32_t twoS, int32_t& e); - CFX_PtrArray* RunEuclideanAlgorithm(CBC_ReedSolomonGF256Poly* a, - CBC_ReedSolomonGF256Poly* b, - int32_t R, - int32_t& e); - CFX_Int32Array* FindErrorLocations(CBC_ReedSolomonGF256Poly* errorLocator, - int32_t& e); - CFX_Int32Array* FindErrorMagnitudes(CBC_ReedSolomonGF256Poly* errorEvaluator, - CFX_Int32Array* errorLocations, - FX_BOOL dataMatrix, - int32_t& e); -}; - -#endif // XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_ diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp deleted file mode 100644 index e5002ce6ee..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp +++ /dev/null @@ -1,124 +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_ReedSolomonGF256.h" -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h" - -CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeFild = NULL; -CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = NULL; -void CBC_ReedSolomonGF256::Initialize() { - QRCodeFild = new CBC_ReedSolomonGF256(0x011D); - QRCodeFild->Init(); - DataMatrixField = new CBC_ReedSolomonGF256(0x012D); - DataMatrixField->Init(); -} -void CBC_ReedSolomonGF256::Finalize() { - if (QRCodeFild) { - delete QRCodeFild; - } - QRCodeFild = NULL; - if (DataMatrixField) { - delete DataMatrixField; - } - DataMatrixField = NULL; -} -CBC_ReedSolomonGF256::CBC_ReedSolomonGF256(int32_t primitive) { - int32_t x = 1; - for (int32_t j = 0; j < 256; j++) { - m_expTable[j] = x; - x <<= 1; - if (x >= 0x100) { - x ^= primitive; - } - } - for (int32_t i = 0; i < 255; i++) { - m_logTable[m_expTable[i]] = i; - } - m_logTable[0] = 0; -} -void CBC_ReedSolomonGF256::Init() { - m_zero = new CBC_ReedSolomonGF256Poly(this, 0); - m_one = new CBC_ReedSolomonGF256Poly(this, 1); -} -CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() { - delete m_zero; - delete m_one; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() { - return m_zero; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() { - return m_one; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial( - int32_t degree, - int32_t coefficient, - int32_t& e) { - if (degree < 0) { - e = BCExceptionDegreeIsNegative; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - if (coefficient == 0) { - CBC_ReedSolomonGF256Poly* temp = m_zero->Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; - } - CFX_Int32Array coefficients; - coefficients.SetSize(degree + 1); - coefficients[0] = coefficient; - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(this, &coefficients, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -int32_t CBC_ReedSolomonGF256::AddOrSubtract(int32_t a, int32_t b) { - return a ^ b; -} -int32_t CBC_ReedSolomonGF256::Exp(int32_t a) { - return m_expTable[a]; -} -int32_t CBC_ReedSolomonGF256::Log(int32_t a, int32_t& e) { - if (a == 0) { - e = BCExceptionAIsZero; - BC_EXCEPTION_CHECK_ReturnValue(e, 0); - } - return m_logTable[a]; -} -int32_t CBC_ReedSolomonGF256::Inverse(int32_t a, int32_t& e) { - if (a == 0) { - e = BCExceptionAIsZero; - BC_EXCEPTION_CHECK_ReturnValue(e, 0); - } - return m_expTable[255 - m_logTable[a]]; -} -int32_t CBC_ReedSolomonGF256::Multiply(int32_t a, int32_t b) { - if (a == 0 || b == 0) { - return 0; - } - if (a == 1) { - return b; - } - if (b == 1) { - return a; - } - return m_expTable[(m_logTable[a] + m_logTable[b]) % 255]; -} diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h deleted file mode 100644 index b351a03079..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h +++ /dev/null @@ -1,41 +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 - -#ifndef XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ -#define XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ - -#include "core/include/fxcrt/fx_basic.h" -#include "xfa/src/fxbarcode/utils.h" - -class CBC_ReedSolomonGF256Poly; -class CBC_ReedSolomonGF256 { - public: - static void Initialize(); - static void Finalize(); - static CBC_ReedSolomonGF256* QRCodeFild; - static CBC_ReedSolomonGF256* DataMatrixField; - CBC_ReedSolomonGF256(int32_t primitive); - virtual ~CBC_ReedSolomonGF256(); - CBC_ReedSolomonGF256Poly* GetZero(); - CBC_ReedSolomonGF256Poly* GetOne(); - CBC_ReedSolomonGF256Poly* BuildMonomial(int32_t degree, - int32_t coefficient, - int32_t& e); - static int32_t AddOrSubtract(int32_t a, int32_t b); - int32_t Exp(int32_t a); - int32_t Log(int32_t a, int32_t& e); - int32_t Inverse(int32_t a, int32_t& e); - int32_t Multiply(int32_t a, int32_t b); - virtual void Init(); - - private: - int32_t m_expTable[256]; - int32_t m_logTable[256]; - CBC_ReedSolomonGF256Poly* m_zero; - CBC_ReedSolomonGF256Poly* m_one; -}; - -#endif // XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_ diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp deleted file mode 100644 index f138009ffa..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp +++ /dev/null @@ -1,254 +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_ReedSolomonGF256Poly.h" - -#include <memory> - -#include "xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h" - -CBC_ReedSolomonGF256Poly::CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, - int32_t coefficients) { - if (field == NULL) { - return; - } - m_field = field; - m_coefficients.Add(coefficients); -} -CBC_ReedSolomonGF256Poly::CBC_ReedSolomonGF256Poly() { - m_field = NULL; -} -void CBC_ReedSolomonGF256Poly::Init(CBC_ReedSolomonGF256* field, - CFX_Int32Array* coefficients, - int32_t& e) { - if (coefficients == NULL || coefficients->GetSize() == 0) { - e = BCExceptionCoefficientsSizeIsNull; - BC_EXCEPTION_CHECK_ReturnVoid(e); - } - m_field = field; - int32_t coefficientsLength = coefficients->GetSize(); - if ((coefficientsLength > 1 && (*coefficients)[0] == 0)) { - int32_t firstNonZero = 1; - while ((firstNonZero < coefficientsLength) && - ((*coefficients)[firstNonZero] == 0)) { - firstNonZero++; - } - if (firstNonZero == coefficientsLength) { - m_coefficients.Copy(*(m_field->GetZero()->GetCoefficients())); - } else { - m_coefficients.SetSize(coefficientsLength - firstNonZero); - for (int32_t i = firstNonZero, j = 0; i < coefficientsLength; i++, j++) { - m_coefficients[j] = coefficients->operator[](i); - } - } - } else { - m_coefficients.Copy(*coefficients); - } -} -CFX_Int32Array* CBC_ReedSolomonGF256Poly::GetCoefficients() { - return &m_coefficients; -} -int32_t CBC_ReedSolomonGF256Poly::GetDegree() { - return m_coefficients.GetSize() - 1; -} -FX_BOOL CBC_ReedSolomonGF256Poly::IsZero() { - return m_coefficients[0] == 0; -} -int32_t CBC_ReedSolomonGF256Poly::GetCoefficients(int32_t degree) { - return m_coefficients[m_coefficients.GetSize() - 1 - degree]; -} -int32_t CBC_ReedSolomonGF256Poly::EvaluateAt(int32_t a) { - if (a == 0) { - return GetCoefficients(0); - } - int32_t size = m_coefficients.GetSize(); - if (a == 1) { - int32_t result = 0; - for (int32_t i = 0; i < size; i++) { - result = CBC_ReedSolomonGF256::AddOrSubtract(result, m_coefficients[i]); - } - return result; - } - int32_t result = m_coefficients[0]; - for (int32_t j = 1; j < size; j++) { - result = CBC_ReedSolomonGF256::AddOrSubtract(m_field->Multiply(a, result), - m_coefficients[j]); - } - return result; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Clone(int32_t& e) { - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(m_field, &m_coefficients, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::AddOrSubtract( - CBC_ReedSolomonGF256Poly* other, - int32_t& e) { - if (IsZero()) { - return other->Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - if (other->IsZero()) { - return Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - CFX_Int32Array smallerCoefficients; - smallerCoefficients.Copy(m_coefficients); - CFX_Int32Array largerCoefficients; - largerCoefficients.Copy(*(other->GetCoefficients())); - if (smallerCoefficients.GetSize() > largerCoefficients.GetSize()) { - CFX_Int32Array temp; - temp.Copy(smallerCoefficients); - smallerCoefficients.Copy(largerCoefficients); - largerCoefficients.Copy(temp); - } - CFX_Int32Array sumDiff; - sumDiff.SetSize(largerCoefficients.GetSize()); - int32_t lengthDiff = - largerCoefficients.GetSize() - smallerCoefficients.GetSize(); - for (int32_t i = 0; i < lengthDiff; i++) { - sumDiff[i] = largerCoefficients[i]; - } - for (int32_t j = lengthDiff; j < largerCoefficients.GetSize(); j++) { - sumDiff[j] = (CBC_ReedSolomonGF256::AddOrSubtract( - smallerCoefficients[j - lengthDiff], largerCoefficients[j])); - } - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(m_field, &sumDiff, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Multiply( - CBC_ReedSolomonGF256Poly* other, - int32_t& e) { - if (IsZero() || other->IsZero()) { - CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; - } - CFX_Int32Array aCoefficients; - aCoefficients.Copy(m_coefficients); - int32_t aLength = m_coefficients.GetSize(); - CFX_Int32Array bCoefficients; - bCoefficients.Copy(*(other->GetCoefficients())); - int32_t bLength = other->GetCoefficients()->GetSize(); - CFX_Int32Array product; - product.SetSize(aLength + bLength - 1); - for (int32_t i = 0; i < aLength; i++) { - int32_t aCoeff = m_coefficients[i]; - for (int32_t j = 0; j < bLength; j++) { - product[i + j] = CBC_ReedSolomonGF256::AddOrSubtract( - product[i + j], - m_field->Multiply(aCoeff, other->GetCoefficients()->operator[](j))); - } - } - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(m_field, &product, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Multiply(int32_t scalar, - int32_t& e) { - if (scalar == 0) { - CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; - } - if (scalar == 1) { - return Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - int32_t size = m_coefficients.GetSize(); - CFX_Int32Array product; - product.SetSize(size); - for (int32_t i = 0; i < size; i++) { - product[i] = m_field->Multiply(m_coefficients[i], scalar); - } - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(m_field, &product, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::MultiplyByMonomial( - int32_t degree, - int32_t coefficient, - int32_t& e) { - if (degree < 0) { - e = BCExceptionDegreeIsNegative; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - if (coefficient == 0) { - CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; - } - int32_t size = m_coefficients.GetSize(); - CFX_Int32Array product; - product.SetSize(size + degree); - for (int32_t i = 0; i < size; i++) { - product[i] = (m_field->Multiply(m_coefficients[i], coefficient)); - } - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(m_field, &product, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - return temp; -} -CFX_PtrArray* CBC_ReedSolomonGF256Poly::Divide(CBC_ReedSolomonGF256Poly* other, - int32_t& e) { - if (other->IsZero()) { - e = BCExceptionDivideByZero; - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - std::unique_ptr<CBC_ReedSolomonGF256Poly> quotient( - m_field->GetZero()->Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> remainder(Clone(e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - int32_t denominatorLeadingTerm = other->GetCoefficients(other->GetDegree()); - int32_t inverseDenominatorLeadingTeam = - m_field->Inverse(denominatorLeadingTerm, e); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - while (remainder->GetDegree() >= other->GetDegree() && !remainder->IsZero()) { - int32_t degreeDifference = remainder->GetDegree() - other->GetDegree(); - int32_t scale = - m_field->Multiply(remainder->GetCoefficients((remainder->GetDegree())), - inverseDenominatorLeadingTeam); - std::unique_ptr<CBC_ReedSolomonGF256Poly> term( - other->MultiplyByMonomial(degreeDifference, scale, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - std::unique_ptr<CBC_ReedSolomonGF256Poly> iteratorQuotient( - m_field->BuildMonomial(degreeDifference, scale, e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - quotient.reset(quotient->AddOrSubtract(iteratorQuotient.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - remainder.reset(remainder->AddOrSubtract(term.get(), e)); - BC_EXCEPTION_CHECK_ReturnValue(e, NULL); - } - CFX_PtrArray* tempPtrA = new CFX_PtrArray; - tempPtrA->Add(quotient.release()); - tempPtrA->Add(remainder.release()); - return tempPtrA; -} -CBC_ReedSolomonGF256Poly::~CBC_ReedSolomonGF256Poly() { - m_coefficients.RemoveAll(); -} diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h deleted file mode 100644 index 71e4a09dd3..0000000000 --- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h +++ /dev/null @@ -1,43 +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 - -#ifndef XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ -#define XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ - -#include "core/include/fxcrt/fx_basic.h" - -class CBC_ReedSolomonGF256; - -class CBC_ReedSolomonGF256Poly { - public: - CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, int32_t coefficients); - CBC_ReedSolomonGF256Poly(); - virtual ~CBC_ReedSolomonGF256Poly(); - int32_t GetCoefficients(int32_t degree); - CFX_Int32Array* GetCoefficients(); - int32_t GetDegree(); - FX_BOOL IsZero(); - int32_t EvaluateAt(int32_t a); - CBC_ReedSolomonGF256Poly* AddOrSubtract(CBC_ReedSolomonGF256Poly* other, - int32_t& e); - CBC_ReedSolomonGF256Poly* Multiply(CBC_ReedSolomonGF256Poly* other, - int32_t& e); - CBC_ReedSolomonGF256Poly* Multiply(int32_t scalar, int32_t& e); - CBC_ReedSolomonGF256Poly* MultiplyByMonomial(int32_t degree, - int32_t coefficient, - int32_t& e); - CFX_PtrArray* Divide(CBC_ReedSolomonGF256Poly* other, int32_t& e); - CBC_ReedSolomonGF256Poly* Clone(int32_t& e); - virtual void Init(CBC_ReedSolomonGF256* field, - CFX_Int32Array* coefficients, - int32_t& e); - - private: - CBC_ReedSolomonGF256* m_field; - CFX_Int32Array m_coefficients; -}; - -#endif // XFA_SRC_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_ |