diff options
Diffstat (limited to 'xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp')
-rw-r--r-- | xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp | 135 |
1 files changed, 0 insertions, 135 deletions
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp deleted file mode 100644 index 349ed0789a..0000000000 --- a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp +++ /dev/null @@ -1,135 +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/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h" - -#include <vector> - -#include "third_party/base/ptr_util.h" -#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h" - -CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeField = nullptr; -CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = nullptr; - -void CBC_ReedSolomonGF256::Initialize() { - QRCodeField = new CBC_ReedSolomonGF256(0x011D); - QRCodeField->Init(); - DataMatrixField = new CBC_ReedSolomonGF256(0x012D); - DataMatrixField->Init(); -} - -void CBC_ReedSolomonGF256::Finalize() { - delete QRCodeField; - QRCodeField = nullptr; - delete DataMatrixField; - DataMatrixField = nullptr; -} - -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 = pdfium::MakeUnique<CBC_ReedSolomonGF256Poly>(this, 0); - m_one = pdfium::MakeUnique<CBC_ReedSolomonGF256Poly>(this, 1); -} - -CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() {} - -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() const { - return m_zero.get(); -} - -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() const { - return m_one.get(); -} - -CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial( - int32_t degree, - int32_t coefficient, - int32_t& e) { - if (degree < 0) { - e = BCExceptionDegreeIsNegative; - return nullptr; - } - if (coefficient == 0) { - CBC_ReedSolomonGF256Poly* temp = m_zero->Clone(e); - if (e != BCExceptionNO) - return nullptr; - return temp; - } - std::vector<int32_t> coefficients(degree + 1); - coefficients[0] = coefficient; - CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly(); - temp->Init(this, &coefficients, e); - if (e != BCExceptionNO) - return nullptr; - 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; - return 0; - } - return m_logTable[a]; -} - -int32_t CBC_ReedSolomonGF256::Inverse(int32_t a, int32_t& e) { - if (a == 0) { - e = BCExceptionAIsZero; - return 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]; -} |