Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_ReedSolomon.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_ReedSolomonGF256.h"
-#include "include/BC_ReedSolomonGF256Poly.h"
-#include "include/BC_ReedSolomon.h"
-CBC_ReedSolomonEncoder::CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field)
-{
-    m_field = field;
-}
-void CBC_ReedSolomonEncoder::Init()
-{
-    m_cachedGenerators.Add(FX_NEW CBC_ReedSolomonGF256Poly(m_field, 1));
-}
-CBC_ReedSolomonGF256Poly* CBC_ReedSolomonEncoder::BuildGenerator(FX_INT32 degree, FX_INT32 &e)
-{
-    if(degree >= m_cachedGenerators.GetSize()) {
-        CBC_ReedSolomonGF256Poly* lastGenerator = (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators[m_cachedGenerators.GetSize() - 1]);
-        for(FX_INT32 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, FX_INT32 ecBytes, FX_INT32 &e)
-{
-    if(ecBytes == 0) {
-        e = BCExceptionNoCorrectionBytes;
-        BC_EXCEPTION_CHECK_ReturnVoid(e);
-    }
-    FX_INT32 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(FX_INT32 x = 0; x < dataBytes; x++) {
-        infoCoefficients[x] = toEncode->operator [](x);
-    }
-    CBC_ReedSolomonGF256Poly info;
-    info.Init(m_field, &infoCoefficients, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    CBC_ReedSolomonGF256Poly* rsg = info.MultiplyByMonomial(ecBytes, 1, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> infoTemp(rsg);
-    CFX_PtrArray *pa = infoTemp->Divide(generator, e);
-    BC_EXCEPTION_CHECK_ReturnVoid(e);
-    CBC_AutoPtr<CFX_PtrArray > temp(pa);
-    CBC_ReedSolomonGF256Poly* remainder = (CBC_ReedSolomonGF256Poly*)(temp->operator [](1));
-    CFX_Int32Array* coefficients = remainder->GetCoefficients();
-    FX_INT32 numZeroCoefficients = ecBytes - coefficients->GetSize();
-    for(FX_INT32 i = 0; i < numZeroCoefficients; i++) {
-        (*toEncode)[dataBytes + i] = 0;
-    }
-    for(FX_INT32 y = 0; y < coefficients->GetSize(); y++) {
-        (*toEncode)[dataBytes + numZeroCoefficients + y] =
-            coefficients->operator [](y);
-    }
-    for (FX_INT32 k = 0; k < temp->GetSize(); k++) {
-        delete (CBC_ReedSolomonGF256Poly*)(*temp)[k];
-    }
-}
-CBC_ReedSolomonEncoder::~CBC_ReedSolomonEncoder()
-{
-    for (FX_INT32 i = 0; i < m_cachedGenerators.GetSize(); i++) {
-        delete (CBC_ReedSolomonGF256Poly*)m_cachedGenerators[i];
-    }
-}