Organize barcode codes into modules.

xfa/src/fxbarcode/src/BC_PDF417ECErrorCorrection.cpp

Index: xfa/src/fxbarcode/src/BC_PDF417ECErrorCorrection.cpp
diff --git a/xfa/src/fxbarcode/src/BC_PDF417ECErrorCorrection.cpp b/xfa/src/fxbarcode/src/BC_PDF417ECErrorCorrection.cpp
deleted file mode 100644
index bdfe27d97c1adc80b99d3399122d44a90a01595c..0000000000000000000000000000000000000000
--- a/xfa/src/fxbarcode/src/BC_PDF417ECErrorCorrection.cpp
+++ /dev/null
@@ -1,369 +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 2012 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_PDF417Common.h"
-#include "include/BC_PDF417ECModulusPoly.h"
-#include "include/BC_PDF417ECModulusGF.h"
-#include "include/BC_PDF417ECErrorCorrection.h"
-CBC_PDF417ECModulusGF* CBC_PDF417ECErrorCorrection::m_field = NULL;
-void CBC_PDF417ECErrorCorrection::Initialize(FX_INT32 &e)
-{
-    m_field = FX_NEW CBC_PDF417ECModulusGF(CBC_PDF417Common::NUMBER_OF_CODEWORDS, 3, e);
-}
-void CBC_PDF417ECErrorCorrection::Finalize()
-{
-    delete m_field;
-}
-CBC_PDF417ECErrorCorrection::CBC_PDF417ECErrorCorrection()
-{
-}
-CBC_PDF417ECErrorCorrection::~CBC_PDF417ECErrorCorrection()
-{
-}
-FX_INT32 CBC_PDF417ECErrorCorrection::decode(CFX_Int32Array &received, FX_INT32 numECCodewords, CFX_Int32Array &erasures, FX_INT32 &e)
-{
-    CBC_PDF417ECModulusPoly poly(m_field, received, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-    CFX_Int32Array S;
-    S.SetSize(numECCodewords);
-    FX_BOOL error = FALSE;
-    for (FX_INT32 l = numECCodewords; l > 0; l--) {
-        FX_INT32 eval = poly.evaluateAt(m_field->exp(l));
-        S[numECCodewords - l] = eval;
-        if (eval != 0) {
-            error = TRUE;
-        }
-    }
-    if (!error) {
-        return 0;
-    }
-    CBC_PDF417ECModulusPoly* syndrome = FX_NEW CBC_PDF417ECModulusPoly(m_field, S, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-    CBC_PDF417ECModulusPoly* buildmonomial = m_field->buildMonomial(numECCodewords, 1, e);
-    if (e != BCExceptionNO) {
-        delete syndrome;
-        return -1;
-    }
-    CFX_PtrArray* sigmaOmega = runEuclideanAlgorithm(buildmonomial, syndrome, numECCodewords, e);
-    delete buildmonomial;
-    delete syndrome;
-    BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-    CBC_PDF417ECModulusPoly* sigma = (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(0);
-    CBC_PDF417ECModulusPoly* omega = (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(1);
-    CFX_Int32Array* errorLocations = findErrorLocations(sigma, e);
-    if (e != BCExceptionNO) {
-        for (FX_INT32 i = 0; i < sigmaOmega->GetSize(); i++) {
-            delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
-        }
-        sigmaOmega->RemoveAll();
-        delete sigmaOmega;
-        return -1;
-    }
-    CFX_Int32Array* errorMagnitudes = findErrorMagnitudes(omega, sigma, *errorLocations, e);
-    if (e != BCExceptionNO) {
-        delete errorLocations;
-        for (FX_INT32 i = 0; i < sigmaOmega->GetSize(); i++) {
-            delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(i);
-        }
-        sigmaOmega->RemoveAll();
-        delete sigmaOmega;
-        return -1;
-    }
-    for (FX_INT32 i = 0; i < errorLocations->GetSize(); i++) {
-        FX_INT32 log = m_field->log(errorLocations->GetAt(i), e);;
-        BC_EXCEPTION_CHECK_ReturnValue(e, -1);
-        FX_INT32 position = received.GetSize() - 1 - log;
-        if (position < 0) {
-            e = BCExceptionChecksumException;
-            delete errorLocations;
-            delete errorMagnitudes;
-            for (FX_INT32 j = 0; j < sigmaOmega->GetSize(); j++) {
-                delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(j);
-            }
-            sigmaOmega->RemoveAll();
-            delete sigmaOmega;
-            return -1;
-        }
-        received[position] = m_field->subtract(received[position], errorMagnitudes->GetAt(i));
-    }
-    FX_INT32 result = errorLocations->GetSize();
-    delete errorLocations;
-    delete errorMagnitudes;
-    for (FX_INT32 k = 0; k < sigmaOmega->GetSize(); k++) {
-        delete (CBC_PDF417ECModulusPoly*)sigmaOmega->GetAt(k);
-    }
-    sigmaOmega->RemoveAll();
-    delete sigmaOmega;
-    return result;
-}
-CFX_PtrArray* CBC_PDF417ECErrorCorrection::runEuclideanAlgorithm(CBC_PDF417ECModulusPoly* a, CBC_PDF417ECModulusPoly* b, FX_INT32 R, FX_INT32 &e)
-{
-    if (a->getDegree() < b->getDegree()) {
-        CBC_PDF417ECModulusPoly* temp = a;
-        a = b;
-        b = temp;
-    }
-    CBC_PDF417ECModulusPoly* rLast = a;
-    CBC_PDF417ECModulusPoly* r = b;
-    CBC_PDF417ECModulusPoly* tLast = m_field->getZero();
-    CBC_PDF417ECModulusPoly* t = m_field->getOne();
-    CBC_PDF417ECModulusPoly* qtemp = NULL;
-    CBC_PDF417ECModulusPoly* rtemp = NULL;
-    CBC_PDF417ECModulusPoly* ttemp = NULL;
-    FX_INT32 i = 0;
-    FX_INT32 j = 0;
-    FX_INT32 m = 0;
-    FX_INT32 n = 0;
-    while (r->getDegree() >= R / 2) {
-        CBC_PDF417ECModulusPoly* rLastLast = rLast;
-        CBC_PDF417ECModulusPoly* tLastLast = tLast;
-        rLast = r;
-        tLast = t;
-        m = i;
-        n = j;
-        if (rLast->isZero()) {
-            e = BCExceptionChecksumException;
-            if (qtemp) {
-                delete qtemp;
-            }
-            if (rtemp) {
-                delete rtemp;
-            }
-            if (ttemp) {
-                delete ttemp;
-            }
-            return NULL;
-        }
-        r = rLastLast;
-        CBC_PDF417ECModulusPoly* q = m_field->getZero();
-        FX_INT32 denominatorLeadingTerm = rLast->getCoefficient(rLast->getDegree());
-        FX_INT32 dltInverse = m_field->inverse(denominatorLeadingTerm, e);
-        if (e != BCExceptionNO) {
-            if (qtemp) {
-                delete qtemp;
-            }
-            if (rtemp) {
-                delete rtemp;
-            }
-            if (ttemp) {
-                delete ttemp;
-            }
-            return NULL;
-        }
-        while (r->getDegree() >= rLast->getDegree() && !r->isZero()) {
-            FX_INT32 degreeDiff = r->getDegree() - rLast->getDegree();
-            FX_INT32 scale = m_field->multiply(r->getCoefficient(r->getDegree()), dltInverse);
-            CBC_PDF417ECModulusPoly* buildmonomial = m_field->buildMonomial(degreeDiff, scale, e);
-            if (e != BCExceptionNO) {
-                if (qtemp) {
-                    delete qtemp;
-                }
-                if (rtemp) {
-                    delete rtemp;
-                }
-                if (ttemp) {
-                    delete ttemp;
-                }
-                return NULL;
-            }
-            q = q->add(buildmonomial, e);
-            delete buildmonomial;
-            if (qtemp) {
-                delete qtemp;
-            }
-            if (e != BCExceptionNO) {
-                if (rtemp) {
-                    delete rtemp;
-                }
-                if (ttemp) {
-                    delete ttemp;
-                }
-                return NULL;
-            }
-            qtemp = q;
-            CBC_PDF417ECModulusPoly* multiply  = rLast->multiplyByMonomial(degreeDiff, scale, e);
-            if (e != BCExceptionNO) {
-                if (qtemp) {
-                    delete qtemp;
-                }
-                if (rtemp) {
-                    delete rtemp;
-                }
-                if (ttemp) {
-                    delete ttemp;
-                }
-                return NULL;
-            }
-            CBC_PDF417ECModulusPoly* temp = r;
-            r = temp->subtract(multiply, e);
-            delete multiply;
-            if (m > 1 && i > m) {
-                delete temp;
-                temp = NULL;
-            }
-            if (e != BCExceptionNO) {
-                if (qtemp) {
-                    delete qtemp;
-                }
-                if (rtemp) {
-                    delete rtemp;
-                }
-                if (ttemp) {
-                    delete ttemp;
-                }
-                return NULL;
-            }
-            rtemp = r;
-            i = m + 1;
-        }
-        ttemp = q->multiply(tLast, e);
-        if (qtemp) {
-            delete qtemp;
-            qtemp = NULL;
-        }
-        if (e != BCExceptionNO) {
-            if (rtemp) {
-                delete rtemp;
-            }
-            if (ttemp) {
-                delete ttemp;
-            }
-            return NULL;
-        }
-        t = ttemp->subtract(tLastLast, e);
-        if (n > 1 && j > n) {
-            delete tLastLast;
-        }
-        delete ttemp;
-        if (e != BCExceptionNO) {
-            if (rtemp) {
-                delete rtemp;
-            }
-            return NULL;
-        }
-        ttemp = t;
-        t = ttemp->negative(e);
-        delete ttemp;
-        if (e != BCExceptionNO) {
-            if (rtemp) {
-                delete rtemp;
-            }
-            return NULL;
-        }
-        ttemp = t;
-        j++;
-    }
-    FX_INT32 aa = t->getCoefficient(1);
-    FX_INT32 sigmaTildeAtZero = t->getCoefficient(0);
-    if (sigmaTildeAtZero == 0) {
-        e = BCExceptionChecksumException;
-        if (rtemp) {
-            delete rtemp;
-        }
-        if (ttemp) {
-            delete ttemp;
-        }
-        return NULL;
-    }
-    FX_INT32 inverse = m_field->inverse(sigmaTildeAtZero, e);
-    if (e != BCExceptionNO) {
-        if (rtemp) {
-            delete rtemp;
-        }
-        if (ttemp) {
-            delete ttemp;
-        }
-        return NULL;
-    }
-    CBC_PDF417ECModulusPoly* sigma = t->multiply(inverse, e);
-    if (ttemp) {
-        delete ttemp;
-    }
-    if (e != BCExceptionNO) {
-        if (rtemp) {
-            delete rtemp;
-        }
-        return NULL;
-    }
-    CBC_PDF417ECModulusPoly* omega = r->multiply(inverse, e);
-    if (rtemp) {
-        delete rtemp;
-    }
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    CFX_PtrArray* modulusPoly = FX_NEW CFX_PtrArray;
-    modulusPoly->Add(sigma);
-    modulusPoly->Add(omega);
-    return modulusPoly;
-}
-CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorLocations(CBC_PDF417ECModulusPoly* errorLocator, FX_INT32 &e)
-{
-    FX_INT32 numErrors = errorLocator->getDegree();
-    CFX_Int32Array* result = FX_NEW CFX_Int32Array;
-    result->SetSize(numErrors);
-    FX_INT32 ee = 0;
-    for (FX_INT32 i = 1; i < m_field->getSize() && ee < numErrors; i++) {
-        if (errorLocator->evaluateAt(i) == 0) {
-            result->SetAt(ee, m_field->inverse(i, e));
-            if (e != BCExceptionNO) {
-                delete result;
-                return NULL;
-            }
-            ee++;
-        }
-    }
-    if (ee != numErrors) {
-        e = BCExceptionChecksumException;
-        delete result;
-        return NULL;
-    }
-    return result;
-}
-CFX_Int32Array* CBC_PDF417ECErrorCorrection::findErrorMagnitudes(CBC_PDF417ECModulusPoly* errorEvaluator, CBC_PDF417ECModulusPoly* errorLocator, CFX_Int32Array &errorLocations, FX_INT32 &e)
-{
-    FX_INT32 errorLocatorDegree = errorLocator->getDegree();
-    CFX_Int32Array formalDerivativeCoefficients;
-    formalDerivativeCoefficients.SetSize(errorLocatorDegree);
-    for (FX_INT32 l = 1; l <= errorLocatorDegree; l++) {
-        formalDerivativeCoefficients[errorLocatorDegree - l] = m_field->multiply(l, errorLocator->getCoefficient(l));
-    }
-    CBC_PDF417ECModulusPoly formalDerivative(m_field, formalDerivativeCoefficients, e);
-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
-    FX_INT32 s = errorLocations.GetSize();
-    CFX_Int32Array* result = FX_NEW CFX_Int32Array;
-    result->SetSize(s);
-    for (FX_INT32 i = 0; i < s; i++) {
-        FX_INT32 xiInverse = m_field->inverse(errorLocations[i], e);
-        if (e != BCExceptionNO) {
-            delete result;
-            return NULL;
-        }
-        FX_INT32 numerator = m_field->subtract(0, errorEvaluator->evaluateAt(xiInverse));
-        FX_INT32 denominator = m_field->inverse(formalDerivative.evaluateAt(xiInverse), e);
-        if (e != BCExceptionNO) {
-            delete result;
-            return NULL;
-        }
-        result->SetAt(i, m_field->multiply(numerator, denominator));
-    }
-    return result;
-}