Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_ReedSolomonGF256.cpp

-// 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 "include/BC_ReedSolomonGF256Poly.h"
-#include "include/BC_ReedSolomonGF256.h"
-CBC_ReedSolomonGF256 *CBC_ReedSolomonGF256::QRCodeFild = NULL;
-CBC_ReedSolomonGF256 *CBC_ReedSolomonGF256::DataMatrixField = NULL;
-void CBC_ReedSolomonGF256::Initialize()
-{
-    QRCodeFild = FX_NEW CBC_ReedSolomonGF256(0x011D);
-    QRCodeFild->Init();
-    DataMatrixField = FX_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(FX_INT32 primitive)
-{
-    FX_INT32 x = 1;
-    for(FX_INT32 j = 0; j < 256; j++) {
-        m_expTable[j] = x;
-        x <<= 1;
-        if(x >= 0x100) {
-            x ^= primitive;
-        }
-    }
-    for(FX_INT32 i = 0; i < 255; i++) {
-        m_logTable[m_expTable[i]] = i;
-    }
-    m_logTable[0] = 0;
-}
-void CBC_ReedSolomonGF256::Init()
-{
-    m_zero = FX_NEW CBC_ReedSolomonGF256Poly(this, 0);
-    m_one = FX_NEW CBC_ReedSolomonGF256Poly(this, 1);
-}
-CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256()
-{
-    if(m_zero != NULL) {
-        delete m_zero;
-        m_zero = NULL;
-    }
-    if(m_one != NULL) {
-        delete m_one;
-        m_one = NULL;
-    }
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero()
-{
-    return m_zero;
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne()
-{
-    return m_one;
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial(FX_INT32 degree, FX_INT32 coefficient, FX_INT32 &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 = FX_NEW CBC_ReedSolomonGF256Poly();
-    temp->Init(this, &coefficients, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    return temp;
-}
-FX_INT32 CBC_ReedSolomonGF256::AddOrSubtract(FX_INT32 a, FX_INT32 b)
-{
-    return a ^ b;
-}
-FX_INT32 CBC_ReedSolomonGF256::Exp(FX_INT32 a)
-{
-    return m_expTable[a];
-}
-FX_INT32 CBC_ReedSolomonGF256::Log(FX_INT32 a, FX_INT32 &e)
-{
-    if(a == 0) {
-        e = BCExceptionAIsZero;
-        BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    }
-    return m_logTable[a];
-}
-FX_INT32 CBC_ReedSolomonGF256::Inverse(FX_INT32 a, FX_INT32 &e)
-{
-    if(a == 0) {
-        e = BCExceptionAIsZero;
-        BC_EXCEPTION_CHECK_ReturnValue(e, 0);
-    }
-    return m_expTable[255 - m_logTable[a]];
-}
-FX_INT32 CBC_ReedSolomonGF256::Multiply(FX_INT32 a, FX_INT32 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];
-}