Move xfa/src up to xfa/.

This CL moves the xfa/src files up to the xfa/ directory and fixes the includes,
include guards, and build files.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1803723002 .

1 files changed, 254 insertions, 0 deletions

diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp
new file mode 100644
index 0000000000..ee22390df6
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.cpp
@@ -0,0 +1,254 @@
+// 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_ReedSolomonGF256Poly.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+
+CBC_ReedSolomonGF256Poly::CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field,
+                                                   int32_t coefficients) {
+  if (field == NULL) {
+    return;
+  }
+  m_field = field;
+  m_coefficients.Add(coefficients);
+}
+CBC_ReedSolomonGF256Poly::CBC_ReedSolomonGF256Poly() {
+  m_field = NULL;
+}
+void CBC_ReedSolomonGF256Poly::Init(CBC_ReedSolomonGF256* field,
+                                    CFX_Int32Array* coefficients,
+                                    int32_t& e) {
+  if (coefficients == NULL || coefficients->GetSize() == 0) {
+    e = BCExceptionCoefficientsSizeIsNull;
+    BC_EXCEPTION_CHECK_ReturnVoid(e);
+  }
+  m_field = field;
+  int32_t coefficientsLength = coefficients->GetSize();
+  if ((coefficientsLength > 1 && (*coefficients)[0] == 0)) {
+    int32_t firstNonZero = 1;
+    while ((firstNonZero < coefficientsLength) &&
+           ((*coefficients)[firstNonZero] == 0)) {
+      firstNonZero++;
+    }
+    if (firstNonZero == coefficientsLength) {
+      m_coefficients.Copy(*(m_field->GetZero()->GetCoefficients()));
+    } else {
+      m_coefficients.SetSize(coefficientsLength - firstNonZero);
+      for (int32_t i = firstNonZero, j = 0; i < coefficientsLength; i++, j++) {
+        m_coefficients[j] = coefficients->operator[](i);
+      }
+    }
+  } else {
+    m_coefficients.Copy(*coefficients);
+  }
+}
+CFX_Int32Array* CBC_ReedSolomonGF256Poly::GetCoefficients() {
+  return &m_coefficients;
+}
+int32_t CBC_ReedSolomonGF256Poly::GetDegree() {
+  return m_coefficients.GetSize() - 1;
+}
+FX_BOOL CBC_ReedSolomonGF256Poly::IsZero() {
+  return m_coefficients[0] == 0;
+}
+int32_t CBC_ReedSolomonGF256Poly::GetCoefficients(int32_t degree) {
+  return m_coefficients[m_coefficients.GetSize() - 1 - degree];
+}
+int32_t CBC_ReedSolomonGF256Poly::EvaluateAt(int32_t a) {
+  if (a == 0) {
+    return GetCoefficients(0);
+  }
+  int32_t size = m_coefficients.GetSize();
+  if (a == 1) {
+    int32_t result = 0;
+    for (int32_t i = 0; i < size; i++) {
+      result = CBC_ReedSolomonGF256::AddOrSubtract(result, m_coefficients[i]);
+    }
+    return result;
+  }
+  int32_t result = m_coefficients[0];
+  for (int32_t j = 1; j < size; j++) {
+    result = CBC_ReedSolomonGF256::AddOrSubtract(m_field->Multiply(a, result),
+                                                 m_coefficients[j]);
+  }
+  return result;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Clone(int32_t& e) {
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(m_field, &m_coefficients, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::AddOrSubtract(
+    CBC_ReedSolomonGF256Poly* other,
+    int32_t& e) {
+  if (IsZero()) {
+    return other->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  if (other->IsZero()) {
+    return Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  CFX_Int32Array smallerCoefficients;
+  smallerCoefficients.Copy(m_coefficients);
+  CFX_Int32Array largerCoefficients;
+  largerCoefficients.Copy(*(other->GetCoefficients()));
+  if (smallerCoefficients.GetSize() > largerCoefficients.GetSize()) {
+    CFX_Int32Array temp;
+    temp.Copy(smallerCoefficients);
+    smallerCoefficients.Copy(largerCoefficients);
+    largerCoefficients.Copy(temp);
+  }
+  CFX_Int32Array sumDiff;
+  sumDiff.SetSize(largerCoefficients.GetSize());
+  int32_t lengthDiff =
+      largerCoefficients.GetSize() - smallerCoefficients.GetSize();
+  for (int32_t i = 0; i < lengthDiff; i++) {
+    sumDiff[i] = largerCoefficients[i];
+  }
+  for (int32_t j = lengthDiff; j < largerCoefficients.GetSize(); j++) {
+    sumDiff[j] = (CBC_ReedSolomonGF256::AddOrSubtract(
+        smallerCoefficients[j - lengthDiff], largerCoefficients[j]));
+  }
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(m_field, &sumDiff, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Multiply(
+    CBC_ReedSolomonGF256Poly* other,
+    int32_t& e) {
+  if (IsZero() || other->IsZero()) {
+    CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    return temp;
+  }
+  CFX_Int32Array aCoefficients;
+  aCoefficients.Copy(m_coefficients);
+  int32_t aLength = m_coefficients.GetSize();
+  CFX_Int32Array bCoefficients;
+  bCoefficients.Copy(*(other->GetCoefficients()));
+  int32_t bLength = other->GetCoefficients()->GetSize();
+  CFX_Int32Array product;
+  product.SetSize(aLength + bLength - 1);
+  for (int32_t i = 0; i < aLength; i++) {
+    int32_t aCoeff = m_coefficients[i];
+    for (int32_t j = 0; j < bLength; j++) {
+      product[i + j] = CBC_ReedSolomonGF256::AddOrSubtract(
+          product[i + j],
+          m_field->Multiply(aCoeff, other->GetCoefficients()->operator[](j)));
+    }
+  }
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(m_field, &product, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::Multiply(int32_t scalar,
+                                                             int32_t& e) {
+  if (scalar == 0) {
+    CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    return temp;
+  }
+  if (scalar == 1) {
+    return Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  int32_t size = m_coefficients.GetSize();
+  CFX_Int32Array product;
+  product.SetSize(size);
+  for (int32_t i = 0; i < size; i++) {
+    product[i] = m_field->Multiply(m_coefficients[i], scalar);
+  }
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(m_field, &product, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256Poly::MultiplyByMonomial(
+    int32_t degree,
+    int32_t coefficient,
+    int32_t& e) {
+  if (degree < 0) {
+    e = BCExceptionDegreeIsNegative;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  if (coefficient == 0) {
+    CBC_ReedSolomonGF256Poly* temp = m_field->GetZero()->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    return temp;
+  }
+  int32_t size = m_coefficients.GetSize();
+  CFX_Int32Array product;
+  product.SetSize(size + degree);
+  for (int32_t i = 0; i < size; i++) {
+    product[i] = (m_field->Multiply(m_coefficients[i], coefficient));
+  }
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(m_field, &product, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+CFX_PtrArray* CBC_ReedSolomonGF256Poly::Divide(CBC_ReedSolomonGF256Poly* other,
+                                               int32_t& e) {
+  if (other->IsZero()) {
+    e = BCExceptionDivideByZero;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> quotient(
+      m_field->GetZero()->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> remainder(Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  int32_t denominatorLeadingTerm = other->GetCoefficients(other->GetDegree());
+  int32_t inverseDenominatorLeadingTeam =
+      m_field->Inverse(denominatorLeadingTerm, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  while (remainder->GetDegree() >= other->GetDegree() && !remainder->IsZero()) {
+    int32_t degreeDifference = remainder->GetDegree() - other->GetDegree();
+    int32_t scale =
+        m_field->Multiply(remainder->GetCoefficients((remainder->GetDegree())),
+                          inverseDenominatorLeadingTeam);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> term(
+        other->MultiplyByMonomial(degreeDifference, scale, e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> iteratorQuotient(
+        m_field->BuildMonomial(degreeDifference, scale, e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    quotient.reset(quotient->AddOrSubtract(iteratorQuotient.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    remainder.reset(remainder->AddOrSubtract(term.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  CFX_PtrArray* tempPtrA = new CFX_PtrArray;
+  tempPtrA->Add(quotient.release());
+  tempPtrA->Add(remainder.release());
+  return tempPtrA;
+}
+CBC_ReedSolomonGF256Poly::~CBC_ReedSolomonGF256Poly() {
+  m_coefficients.RemoveAll();
+}