Fix DOS newlines

R=thestig@chromium.org

Review URL: https://codereview.chromium.org/1636873004 .

1 files changed, 239 insertions, 239 deletions

diff --git a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp
index 4ee87a4fa7..b053f2a784 100644
--- a/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp
+++ b/xfa/src/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp
@@ -1,239 +1,239 @@
-// 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/barcode.h"

-#include "BC_ReedSolomonGF256.h"

-#include "BC_ReedSolomonGF256Poly.h"

-#include "BC_ReedSolomonDecoder.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);

-  CBC_ReedSolomonGF256Poly* rsg = m_field->BuildMonomial(twoS, 1, e);

-  BC_EXCEPTION_CHECK_ReturnVoid(e);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp(rsg);

-  CFX_PtrArray* pa = RunEuclideanAlgorithm(temp.get(), &syndrome, twoS, e);

-  BC_EXCEPTION_CHECK_ReturnVoid(e);

-  CBC_AutoPtr<CFX_PtrArray> sigmaOmega(pa);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sigma(

-      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[0]);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> omega(

-      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[1]);

-  CFX_Int32Array* ia1 = FindErrorLocations(sigma.get(), e);

-  BC_EXCEPTION_CHECK_ReturnVoid(e);

-  CBC_AutoPtr<CFX_Int32Array> errorLocations(ia1);

-  CFX_Int32Array* ia2 =

-      FindErrorMagnitudes(omega.get(), errorLocations.get(), dataMatrix, e);

-  BC_EXCEPTION_CHECK_ReturnVoid(e);

-  CBC_AutoPtr<CFX_Int32Array> errorMagnitudes(ia2);

-  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;

-  }

-  CBC_ReedSolomonGF256Poly* rsg1 = a->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rLast(rsg1);

-  CBC_ReedSolomonGF256Poly* rsg2 = b->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> r(rsg2);

-  CBC_ReedSolomonGF256Poly* rsg3 = m_field->GetOne()->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sLast(rsg3);

-  CBC_ReedSolomonGF256Poly* rsg4 = m_field->GetZero()->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> s(rsg4);

-  CBC_ReedSolomonGF256Poly* rsg5 = m_field->GetZero()->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> tLast(rsg5);

-  CBC_ReedSolomonGF256Poly* rsg6 = m_field->GetOne()->Clone(e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> t(rsg6);

-  while (r->GetDegree() >= R / 2) {

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rLastLast = rLast;

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sLastLast = sLast;

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> tLastlast = tLast;

-    rLast = r;

-    sLast = s;

-    tLast = t;

-    if (rLast->IsZero()) {

-      e = BCExceptionR_I_1IsZero;

-      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    }

-    CBC_ReedSolomonGF256Poly* rsg7 = rLastLast->Clone(e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rTemp(rsg7);

-    r = rTemp;

-    CBC_ReedSolomonGF256Poly* rsg8 = m_field->GetZero()->Clone(e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> q(rsg8);

-    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);

-      CBC_ReedSolomonGF256Poly* rsgp1 =

-          m_field->BuildMonomial(degreeDiff, scale, e);

-      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> build(rsgp1);

-      CBC_ReedSolomonGF256Poly* rsgp2 = q->AddOrSubtract(build.get(), e);

-      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp(rsgp2);

-      q = temp;

-      CBC_ReedSolomonGF256Poly* rsgp3 =

-          rLast->MultiplyByMonomial(degreeDiff, scale, e);

-      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> multiply(rsgp3);

-      CBC_ReedSolomonGF256Poly* rsgp4 = r->AddOrSubtract(multiply.get(), e);

-      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp3(rsgp4);

-      r = temp3;

-    }

-    CBC_ReedSolomonGF256Poly* rsg9 = q->Multiply(sLast.get(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp1(rsg9);

-    CBC_ReedSolomonGF256Poly* rsg10 = temp1->AddOrSubtract(sLastLast.get(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp2(rsg10);

-    s = temp2;

-    CBC_ReedSolomonGF256Poly* rsg11 = q->Multiply(tLast.get(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp5(rsg11);

-    CBC_ReedSolomonGF256Poly* rsg12 = temp5->AddOrSubtract(tLastlast.get(), e);

-    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp6(rsg12);

-    t = temp6;

-  }

-  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);

-  CBC_ReedSolomonGF256Poly* rsg13 = t->Multiply(inverse, e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sigma(rsg13);

-  CBC_ReedSolomonGF256Poly* rsg14 = r->Multiply(inverse, e);

-  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);

-  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> omega(rsg14);

-  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) {

-    CBC_AutoPtr<CFX_Int32Array> temp(new CFX_Int32Array);

-    temp->Add(errorLocator->GetCoefficients(1));

-    return temp.release();

-  }

-  CFX_Int32Array* tempT = new CFX_Int32Array;

-  tempT->SetSize(numErrors);

-  CBC_AutoPtr<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);

-  CBC_AutoPtr<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();

-}

+// 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/barcode.h"
+#include "BC_ReedSolomonGF256.h"
+#include "BC_ReedSolomonGF256Poly.h"
+#include "BC_ReedSolomonDecoder.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);
+  CBC_ReedSolomonGF256Poly* rsg = m_field->BuildMonomial(twoS, 1, e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp(rsg);
+  CFX_PtrArray* pa = RunEuclideanAlgorithm(temp.get(), &syndrome, twoS, e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  CBC_AutoPtr<CFX_PtrArray> sigmaOmega(pa);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sigma(
+      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[0]);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> omega(
+      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[1]);
+  CFX_Int32Array* ia1 = FindErrorLocations(sigma.get(), e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  CBC_AutoPtr<CFX_Int32Array> errorLocations(ia1);
+  CFX_Int32Array* ia2 =
+      FindErrorMagnitudes(omega.get(), errorLocations.get(), dataMatrix, e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  CBC_AutoPtr<CFX_Int32Array> errorMagnitudes(ia2);
+  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;
+  }
+  CBC_ReedSolomonGF256Poly* rsg1 = a->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rLast(rsg1);
+  CBC_ReedSolomonGF256Poly* rsg2 = b->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> r(rsg2);
+  CBC_ReedSolomonGF256Poly* rsg3 = m_field->GetOne()->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sLast(rsg3);
+  CBC_ReedSolomonGF256Poly* rsg4 = m_field->GetZero()->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> s(rsg4);
+  CBC_ReedSolomonGF256Poly* rsg5 = m_field->GetZero()->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> tLast(rsg5);
+  CBC_ReedSolomonGF256Poly* rsg6 = m_field->GetOne()->Clone(e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> t(rsg6);
+  while (r->GetDegree() >= R / 2) {
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rLastLast = rLast;
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sLastLast = sLast;
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> tLastlast = tLast;
+    rLast = r;
+    sLast = s;
+    tLast = t;
+    if (rLast->IsZero()) {
+      e = BCExceptionR_I_1IsZero;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    CBC_ReedSolomonGF256Poly* rsg7 = rLastLast->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> rTemp(rsg7);
+    r = rTemp;
+    CBC_ReedSolomonGF256Poly* rsg8 = m_field->GetZero()->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> q(rsg8);
+    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);
+      CBC_ReedSolomonGF256Poly* rsgp1 =
+          m_field->BuildMonomial(degreeDiff, scale, e);
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> build(rsgp1);
+      CBC_ReedSolomonGF256Poly* rsgp2 = q->AddOrSubtract(build.get(), e);
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp(rsgp2);
+      q = temp;
+      CBC_ReedSolomonGF256Poly* rsgp3 =
+          rLast->MultiplyByMonomial(degreeDiff, scale, e);
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> multiply(rsgp3);
+      CBC_ReedSolomonGF256Poly* rsgp4 = r->AddOrSubtract(multiply.get(), e);
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp3(rsgp4);
+      r = temp3;
+    }
+    CBC_ReedSolomonGF256Poly* rsg9 = q->Multiply(sLast.get(), e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp1(rsg9);
+    CBC_ReedSolomonGF256Poly* rsg10 = temp1->AddOrSubtract(sLastLast.get(), e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp2(rsg10);
+    s = temp2;
+    CBC_ReedSolomonGF256Poly* rsg11 = q->Multiply(tLast.get(), e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp5(rsg11);
+    CBC_ReedSolomonGF256Poly* rsg12 = temp5->AddOrSubtract(tLastlast.get(), e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    CBC_AutoPtr<CBC_ReedSolomonGF256Poly> temp6(rsg12);
+    t = temp6;
+  }
+  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);
+  CBC_ReedSolomonGF256Poly* rsg13 = t->Multiply(inverse, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> sigma(rsg13);
+  CBC_ReedSolomonGF256Poly* rsg14 = r->Multiply(inverse, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  CBC_AutoPtr<CBC_ReedSolomonGF256Poly> omega(rsg14);
+  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) {
+    CBC_AutoPtr<CFX_Int32Array> temp(new CFX_Int32Array);
+    temp->Add(errorLocator->GetCoefficients(1));
+    return temp.release();
+  }
+  CFX_Int32Array* tempT = new CFX_Int32Array;
+  tempT->SetSize(numErrors);
+  CBC_AutoPtr<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);
+  CBC_AutoPtr<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();
+}