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 .

30 files changed, 2512 insertions, 0 deletions

diff --git a/xfa/fxbarcode/common/BC_CommonBitArray.cpp b/xfa/fxbarcode/common/BC_CommonBitArray.cpp
new file mode 100644
index 0000000000..b39e4acd88
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitArray.cpp
@@ -0,0 +1,113 @@
+// 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/BC_CommonBitArray.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_CommonBitArray::CBC_CommonBitArray(CBC_CommonBitArray* array) {
+  m_size = array->GetSize();
+  m_bits.Copy(array->GetBits());
+}
+CBC_CommonBitArray::CBC_CommonBitArray() {
+  m_bits.SetSize(1);
+  m_size = 0;
+}
+CBC_CommonBitArray::CBC_CommonBitArray(int32_t size) {
+  m_bits.SetSize((size + 31) >> 5);
+  m_size = size;
+}
+CBC_CommonBitArray::~CBC_CommonBitArray() {
+  m_size = 0;
+}
+int32_t CBC_CommonBitArray::GetSize() {
+  return m_size;
+}
+CFX_Int32Array& CBC_CommonBitArray::GetBits() {
+  return m_bits;
+}
+int32_t CBC_CommonBitArray::GetSizeInBytes() {
+  return (m_size + 7) >> 3;
+}
+FX_BOOL CBC_CommonBitArray::Get(int32_t i) {
+  return (m_bits[i >> 5] & (1 << (i & 0x1f))) != 0;
+}
+void CBC_CommonBitArray::Set(int32_t i) {
+  m_bits[i >> 5] |= 1 << (i & 0x1F);
+}
+void CBC_CommonBitArray::Flip(int32_t i) {
+  m_bits[i >> 5] ^= 1 << (i & 0x1F);
+}
+void CBC_CommonBitArray::SetBulk(int32_t i, int32_t newBits) {
+  m_bits[i >> 5] = newBits;
+}
+void CBC_CommonBitArray::Clear() {
+  FXSYS_memset(&m_bits[0], 0x00, m_bits.GetSize() * sizeof(int32_t));
+}
+FX_BOOL CBC_CommonBitArray::IsRange(int32_t start,
+                                    int32_t end,
+                                    FX_BOOL value,
+                                    int32_t& e) {
+  if (end < start) {
+    e = BCExceptionEndLessThanStart;
+    return FALSE;
+  }
+  if (end == start) {
+    return TRUE;
+  }
+  end--;
+  int32_t firstInt = start >> 5;
+  int32_t lastInt = end >> 5;
+  int32_t i;
+  for (i = firstInt; i <= lastInt; i++) {
+    int32_t firstBit = i > firstInt ? 0 : start & 0x1F;
+    int32_t lastBit = i < lastInt ? 31 : end & 0x1F;
+    int32_t mask;
+    if (firstBit == 0 && lastBit == 31) {
+      mask = -1;
+    } else {
+      mask = 0;
+      for (int32_t j = firstBit; j <= lastBit; j++) {
+        mask |= 1 << j;
+      }
+    }
+    if ((m_bits[i] & mask) != (value ? mask : 0)) {
+      return FALSE;
+    }
+  }
+  return TRUE;
+}
+int32_t* CBC_CommonBitArray::GetBitArray() {
+  return &m_bits[0];
+}
+void CBC_CommonBitArray::Reverse() {
+  int32_t* newBits = FX_Alloc(int32_t, m_bits.GetSize());
+  FXSYS_memset(newBits, 0x00, m_bits.GetSize() * sizeof(int32_t));
+  int32_t size = m_size;
+  int32_t i;
+  for (i = 0; i < size; i++) {
+    if (Get(size - i - 1)) {
+      newBits[i >> 5] |= 1 << (i & 0x1F);
+    }
+  }
+  FXSYS_memcpy(&m_bits[0], newBits, m_bits.GetSize() * sizeof(int32_t));
+  FX_Free(newBits);
+}
diff --git a/xfa/fxbarcode/common/BC_CommonBitArray.h b/xfa/fxbarcode/common/BC_CommonBitArray.h
new file mode 100644
index 0000000000..6ddd789480
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitArray.h
@@ -0,0 +1,35 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONBITARRAY_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONBITARRAY_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_CommonBitArray {
+ public:
+  CBC_CommonBitArray(CBC_CommonBitArray* array);
+  CBC_CommonBitArray(int32_t size);
+  CBC_CommonBitArray();
+  virtual ~CBC_CommonBitArray();
+  int32_t GetSize();
+  CFX_Int32Array& GetBits();
+  int32_t GetSizeInBytes();
+  FX_BOOL Get(int32_t i);
+  void Set(int32_t i);
+  void Flip(int32_t i);
+  void SetBulk(int32_t i, int32_t newBits);
+  FX_BOOL IsRange(int32_t start, int32_t end, FX_BOOL value, int32_t& e);
+  int32_t* GetBitArray();
+  void Reverse();
+  void Clear();
+
+ private:
+  int32_t m_size;
+  CFX_Int32Array m_bits;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONBITARRAY_H_
diff --git a/xfa/fxbarcode/common/BC_CommonBitMatrix.cpp b/xfa/fxbarcode/common/BC_CommonBitMatrix.cpp
new file mode 100644
index 0000000000..a8f87e7ec4
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitMatrix.cpp
@@ -0,0 +1,146 @@
+// 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/BC_CommonBitArray.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_CommonBitMatrix::CBC_CommonBitMatrix() {
+  m_width = 0;
+  m_height = 0;
+  m_rowSize = 0;
+  m_bits = NULL;
+}
+void CBC_CommonBitMatrix::Init(int32_t dimension) {
+  m_width = dimension;
+  m_height = dimension;
+  int32_t rowSize = (m_height + 31) >> 5;
+  m_rowSize = rowSize;
+  m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
+  FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
+}
+void CBC_CommonBitMatrix::Init(int32_t width, int32_t height) {
+  m_width = width;
+  m_height = height;
+  int32_t rowSize = (width + 31) >> 5;
+  m_rowSize = rowSize;
+  m_bits = FX_Alloc2D(int32_t, m_rowSize, m_height);
+  FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
+}
+CBC_CommonBitMatrix::~CBC_CommonBitMatrix() {
+  FX_Free(m_bits);
+}
+FX_BOOL CBC_CommonBitMatrix::Get(int32_t x, int32_t y) {
+  int32_t offset = y * m_rowSize + (x >> 5);
+  if (offset >= m_rowSize * m_height || offset < 0) {
+    return false;
+  }
+  return ((((FX_DWORD)m_bits[offset]) >> (x & 0x1f)) & 1) != 0;
+}
+int32_t* CBC_CommonBitMatrix::GetBits() {
+  return m_bits;
+}
+void CBC_CommonBitMatrix::Set(int32_t x, int32_t y) {
+  int32_t offset = y * m_rowSize + (x >> 5);
+  if (offset >= m_rowSize * m_height || offset < 0) {
+    return;
+  }
+  m_bits[offset] |= 1 << (x & 0x1f);
+}
+void CBC_CommonBitMatrix::Flip(int32_t x, int32_t y) {
+  int32_t offset = y * m_rowSize + (x >> 5);
+  m_bits[offset] ^= 1 << (x & 0x1f);
+}
+void CBC_CommonBitMatrix::Clear() {
+  FXSYS_memset(m_bits, 0, m_rowSize * m_height * sizeof(int32_t));
+}
+void CBC_CommonBitMatrix::SetRegion(int32_t left,
+                                    int32_t top,
+                                    int32_t width,
+                                    int32_t height,
+                                    int32_t& e) {
+  if (top < 0 || left < 0) {
+    e = BCExceptionLeftAndTopMustBeNonnegative;
+    return;
+  }
+  if (height < 1 || width < 1) {
+    e = BCExceptionHeightAndWidthMustBeAtLeast1;
+    return;
+  }
+  int32_t right = left + width;
+  int32_t bottom = top + height;
+  if (m_height < bottom || m_width < right) {
+    e = BCExceptionRegionMustFitInsideMatrix;
+    return;
+  }
+  int32_t y;
+  for (y = top; y < bottom; y++) {
+    int32_t offset = y * m_rowSize;
+    int32_t x;
+    for (x = left; x < right; x++) {
+      m_bits[offset + (x >> 5)] |= 1 << (x & 0x1f);
+    }
+  }
+}
+CBC_CommonBitArray* CBC_CommonBitMatrix::GetRow(int32_t y,
+                                                CBC_CommonBitArray* row) {
+  CBC_CommonBitArray* rowArray = NULL;
+  if (row == NULL || row->GetSize() < m_width) {
+    rowArray = new CBC_CommonBitArray(m_width);
+  } else {
+    rowArray = new CBC_CommonBitArray(row);
+  }
+  int32_t offset = y * m_rowSize;
+  int32_t x;
+  for (x = 0; x < m_rowSize; x++) {
+    rowArray->SetBulk(x << 5, m_bits[offset + x]);
+  }
+  return rowArray;
+}
+void CBC_CommonBitMatrix::SetRow(int32_t y, CBC_CommonBitArray* row) {
+  int32_t l = y * m_rowSize;
+  for (int32_t i = 0; i < m_rowSize; i++) {
+    m_bits[l] = row->GetBitArray()[i];
+    l++;
+  }
+}
+void CBC_CommonBitMatrix::SetCol(int32_t y, CBC_CommonBitArray* col) {
+  for (int32_t i = 0; i < col->GetBits().GetSize(); i++) {
+    m_bits[i * m_rowSize + y] = col->GetBitArray()[i];
+  }
+}
+int32_t CBC_CommonBitMatrix::GetWidth() {
+  return m_width;
+}
+int32_t CBC_CommonBitMatrix::GetHeight() {
+  return m_height;
+}
+int32_t CBC_CommonBitMatrix::GetRowSize() {
+  return m_rowSize;
+}
+int32_t CBC_CommonBitMatrix::GetDimension(int32_t& e) {
+  if (m_width != m_height) {
+    e = BCExceptionCanNotCallGetDimensionOnNonSquareMatrix;
+    return 0;
+  }
+  return m_width;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonBitMatrix.h b/xfa/fxbarcode/common/BC_CommonBitMatrix.h
new file mode 100644
index 0000000000..78b42641dd
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitMatrix.h
@@ -0,0 +1,46 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONBITMATRIX_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONBITMATRIX_H_
+
+#include "core/include/fxcrt/fx_system.h"
+
+class CBC_CommonBitArray;
+
+class CBC_CommonBitMatrix {
+ public:
+  CBC_CommonBitMatrix();
+  virtual ~CBC_CommonBitMatrix();
+  FX_BOOL Get(int32_t x, int32_t y);
+  void Set(int32_t x, int32_t y);
+  void Flip(int32_t x, int32_t y);
+  void Clear();
+  void SetRegion(int32_t left,
+                 int32_t top,
+                 int32_t width,
+                 int32_t height,
+                 int32_t& e);
+  CBC_CommonBitArray* GetRow(int32_t y, CBC_CommonBitArray* row);
+  void SetRow(int32_t y, CBC_CommonBitArray* row);
+  CBC_CommonBitArray* GetCol(int32_t y, CBC_CommonBitArray* row);
+  void SetCol(int32_t y, CBC_CommonBitArray* col);
+  int32_t GetWidth();
+  int32_t GetHeight();
+  int32_t GetRowSize();
+  int32_t GetDimension(int32_t& e);
+  virtual void Init(int32_t dimension);
+  virtual void Init(int32_t width, int32_t height);
+  int32_t* GetBits();
+
+ private:
+  int32_t m_width;
+  int32_t m_height;
+  int32_t m_rowSize;
+  int32_t* m_bits;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONBITMATRIX_H_
diff --git a/xfa/fxbarcode/common/BC_CommonBitSource.cpp b/xfa/fxbarcode/common/BC_CommonBitSource.cpp
new file mode 100644
index 0000000000..af91d5e0bd
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitSource.cpp
@@ -0,0 +1,71 @@
+// 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/BC_CommonBitSource.h"
+
+CBC_CommonBitSource::CBC_CommonBitSource(CFX_ByteArray* bytes) {
+  m_bytes.Copy((*bytes));
+  m_bitOffset = 0;
+  m_byteOffset = 0;
+}
+CBC_CommonBitSource::~CBC_CommonBitSource() {}
+int32_t CBC_CommonBitSource::ReadBits(int32_t numBits, int32_t& e) {
+  if (numBits < 1 || numBits > 32) {
+    e = BCExceptionIllegalArgument;
+    return 0;
+  }
+  int32_t result = 0;
+  if (m_bitOffset > 0) {
+    int32_t bitsLeft = 8 - m_bitOffset;
+    int32_t toRead = numBits < bitsLeft ? numBits : bitsLeft;
+    int32_t bitsToNotRead = bitsLeft - toRead;
+    int32_t mask = (0xff >> (8 - toRead)) << bitsToNotRead;
+    result = (m_bytes[m_byteOffset] & mask) >> bitsToNotRead;
+    numBits -= toRead;
+    m_bitOffset += toRead;
+    if (m_bitOffset == 8) {
+      m_bitOffset = 0;
+      m_byteOffset++;
+    }
+  }
+  if (numBits > 0) {
+    while (numBits >= 8) {
+      result = (result << 8) | (m_bytes[m_byteOffset] & 0xff);
+      m_byteOffset++;
+      numBits -= 8;
+    }
+    if (numBits > 0) {
+      int32_t bitsToNotRead = 8 - numBits;
+      int32_t mask = (0xff >> bitsToNotRead) << bitsToNotRead;
+      result = (result << numBits) |
+               ((m_bytes[m_byteOffset] & mask) >> bitsToNotRead);
+      m_bitOffset += numBits;
+    }
+  }
+  return result;
+}
+int32_t CBC_CommonBitSource::Available() {
+  return 8 * (m_bytes.GetSize() - m_byteOffset) - m_bitOffset;
+}
+int32_t CBC_CommonBitSource::getByteOffset() {
+  return m_byteOffset;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonBitSource.h b/xfa/fxbarcode/common/BC_CommonBitSource.h
new file mode 100644
index 0000000000..7617a6f19d
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonBitSource.h
@@ -0,0 +1,27 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONBITSOURCE_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONBITSOURCE_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "xfa/fxbarcode/utils.h"
+
+class CBC_CommonBitSource {
+ public:
+  CBC_CommonBitSource(CFX_ByteArray* bytes);
+  virtual ~CBC_CommonBitSource();
+  int32_t ReadBits(int32_t numBits, int32_t& e);
+  int32_t Available();
+  int32_t getByteOffset();
+
+ private:
+  CFX_ByteArray m_bytes;
+  int32_t m_byteOffset;
+  int32_t m_bitOffset;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONBITSOURCE_H_
diff --git a/xfa/fxbarcode/common/BC_CommonByteArray.cpp b/xfa/fxbarcode/common/BC_CommonByteArray.cpp
new file mode 100644
index 0000000000..1fd6e46420
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonByteArray.cpp
@@ -0,0 +1,99 @@
+// 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 2008 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 <algorithm>
+
+#include "xfa/fxbarcode/common/BC_CommonByteArray.h"
+
+CBC_CommonByteArray::CBC_CommonByteArray() {
+  m_bytes = NULL;
+  m_size = 0;
+  m_index = 0;
+}
+CBC_CommonByteArray::CBC_CommonByteArray(int32_t size) {
+  m_size = size;
+  m_bytes = FX_Alloc(uint8_t, size);
+  FXSYS_memset(m_bytes, 0, size);
+  m_index = 0;
+}
+CBC_CommonByteArray::CBC_CommonByteArray(uint8_t* byteArray, int32_t size) {
+  m_size = size;
+  m_bytes = FX_Alloc(uint8_t, size);
+  FXSYS_memcpy(m_bytes, byteArray, size);
+  m_index = size;
+}
+CBC_CommonByteArray::~CBC_CommonByteArray() {
+  FX_Free(m_bytes);
+}
+int32_t CBC_CommonByteArray::At(int32_t index) {
+  return m_bytes[index] & 0xff;
+}
+void CBC_CommonByteArray::Set(int32_t index, int32_t value) {
+  m_bytes[index] = (uint8_t)value;
+}
+int32_t CBC_CommonByteArray::Size() {
+  return m_size;
+}
+FX_BOOL CBC_CommonByteArray::IsEmpty() {
+  return m_size == 0;
+}
+void CBC_CommonByteArray::AppendByte(int32_t value) {
+  if (m_size == 0 || m_index >= m_size) {
+    int32_t newSize = std::max(32, m_size << 1);
+    Reserve(newSize);
+  }
+  m_bytes[m_index] = (uint8_t)value;
+  m_index++;
+}
+void CBC_CommonByteArray::Reserve(int32_t capacity) {
+  if (m_bytes == NULL || m_size < capacity) {
+    uint8_t* newArray = FX_Alloc(uint8_t, capacity);
+    if (m_bytes) {
+      FXSYS_memcpy(newArray, m_bytes, m_size);
+      FXSYS_memset(newArray + m_size, 0, capacity - m_size);
+    } else {
+      FXSYS_memset(newArray, 0, capacity);
+    }
+    FX_Free(m_bytes);
+    m_bytes = newArray;
+    m_size = capacity;
+  }
+}
+void CBC_CommonByteArray::Set(uint8_t* source, int32_t offset, int32_t count) {
+  FX_Free(m_bytes);
+  m_bytes = FX_Alloc(uint8_t, count);
+  m_size = count;
+  FXSYS_memcpy(m_bytes, source + offset, count);
+  m_index = count;
+}
+void CBC_CommonByteArray::Set(CFX_ByteArray* source,
+                              int32_t offset,
+                              int32_t count) {
+  FX_Free(m_bytes);
+  m_bytes = FX_Alloc(uint8_t, count);
+  m_size = count;
+  int32_t i;
+  for (i = 0; i < count; i++) {
+    m_bytes[i] = source->operator[](i + offset);
+  }
+  m_index = m_size;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonByteArray.h b/xfa/fxbarcode/common/BC_CommonByteArray.h
new file mode 100644
index 0000000000..69d470b0e5
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonByteArray.h
@@ -0,0 +1,33 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONBYTEARRAY_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONBYTEARRAY_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_CommonByteArray {
+ private:
+  int32_t m_size;
+  int32_t m_index;
+  uint8_t* m_bytes;
+
+ public:
+  CBC_CommonByteArray();
+  CBC_CommonByteArray(int32_t size);
+  CBC_CommonByteArray(uint8_t* byteArray, int32_t size);
+  virtual ~CBC_CommonByteArray();
+  int32_t At(int32_t index);
+  void Set(int32_t index, int32_t value);
+  int32_t Size();
+  FX_BOOL IsEmpty();
+  void AppendByte(int32_t value);
+  void Reserve(int32_t capacity);
+  void Set(uint8_t* source, int32_t offset, int32_t count);
+  void Set(CFX_ByteArray* source, int32_t offset, int32_t count);
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONBYTEARRAY_H_
diff --git a/xfa/fxbarcode/common/BC_CommonByteMatrix.cpp b/xfa/fxbarcode/common/BC_CommonByteMatrix.cpp
new file mode 100644
index 0000000000..c9ed7495c0
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonByteMatrix.cpp
@@ -0,0 +1,64 @@
+// 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 2008 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 "core/include/fxcrt/fx_memory.h"
+#include "xfa/fxbarcode/common/BC_CommonByteMatrix.h"
+
+CBC_CommonByteMatrix::CBC_CommonByteMatrix(int32_t width, int32_t height) {
+  m_height = height;
+  m_width = width;
+  m_bytes = NULL;
+}
+void CBC_CommonByteMatrix::Init() {
+  m_bytes = FX_Alloc2D(uint8_t, m_height, m_width);
+  FXSYS_memset(m_bytes, 0xff, m_height * m_width);
+}
+CBC_CommonByteMatrix::~CBC_CommonByteMatrix() {
+  FX_Free(m_bytes);
+}
+int32_t CBC_CommonByteMatrix::GetHeight() {
+  return m_height;
+}
+int32_t CBC_CommonByteMatrix::GetWidth() {
+  return m_width;
+}
+uint8_t CBC_CommonByteMatrix::Get(int32_t x, int32_t y) {
+  return m_bytes[y * m_width + x];
+}
+void CBC_CommonByteMatrix::Set(int32_t x, int32_t y, int32_t value) {
+  m_bytes[y * m_width + x] = (uint8_t)value;
+}
+void CBC_CommonByteMatrix::Set(int32_t x, int32_t y, uint8_t value) {
+  m_bytes[y * m_width + x] = value;
+}
+void CBC_CommonByteMatrix::clear(uint8_t value) {
+  int32_t y;
+  for (y = 0; y < m_height; y++) {
+    int32_t x;
+    for (x = 0; x < m_width; x++) {
+      m_bytes[y * m_width + x] = value;
+    }
+  }
+}
+uint8_t* CBC_CommonByteMatrix::GetArray() {
+  return m_bytes;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonByteMatrix.h b/xfa/fxbarcode/common/BC_CommonByteMatrix.h
new file mode 100644
index 0000000000..271feef34f
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonByteMatrix.h
@@ -0,0 +1,34 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONBYTEMATRIX_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONBYTEMATRIX_H_
+
+#include <stdint.h>
+
+#include "core/include/fxcrt/fx_system.h"
+
+class CBC_CommonByteMatrix {
+ public:
+  CBC_CommonByteMatrix(int32_t width, int32_t height);
+  virtual ~CBC_CommonByteMatrix();
+  int32_t GetHeight();
+  int32_t GetWidth();
+  uint8_t Get(int32_t x, int32_t y);
+  uint8_t* GetArray();
+
+  void Set(int32_t x, int32_t y, int32_t value);
+  void Set(int32_t x, int32_t y, uint8_t value);
+  void clear(uint8_t value);
+  virtual void Init();
+
+ private:
+  uint8_t* m_bytes;
+  int32_t m_width;
+  int32_t m_height;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONBYTEMATRIX_H_
diff --git a/xfa/fxbarcode/common/BC_CommonCharacterSetECI.cpp b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.cpp
new file mode 100644
index 0000000000..d6fa9e472e
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.cpp
@@ -0,0 +1,44 @@
+// 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 2008 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/BC_CommonCharacterSetECI.h"
+#include "xfa/fxbarcode/common/BC_CommonECI.h"
+
+void CBC_CommonCharacterSetECI::initialize() {}
+CBC_CommonCharacterSetECI::CBC_CommonCharacterSetECI(
+    int32_t value,
+    CFX_ByteString encodingName)
+    : CBC_CommonECI(value), m_encodingName(encodingName) {}
+CBC_CommonCharacterSetECI::~CBC_CommonCharacterSetECI() {}
+CFX_ByteString CBC_CommonCharacterSetECI::GetEncodingName() {
+  return m_encodingName;
+}
+void CBC_CommonCharacterSetECI::AddCharacterSet(int32_t value,
+                                                CFX_ByteString encodingName) {}
+CBC_CommonCharacterSetECI* CBC_CommonCharacterSetECI::GetCharacterSetECIByValue(
+    int32_t value) {
+  return NULL;
+}
+CBC_CommonCharacterSetECI* CBC_CommonCharacterSetECI::GetCharacterSetECIByName(
+    const CFX_ByteString& name) {
+  return NULL;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h
new file mode 100644
index 0000000000..18a676a449
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonCharacterSetECI.h
@@ -0,0 +1,29 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONCHARACTERSETECI_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONCHARACTERSETECI_H_
+
+#include "core/include/fxcrt/fx_string.h"
+#include "xfa/fxbarcode/common/BC_CommonECI.h"
+
+class CBC_CommonCharacterSetECI : public CBC_CommonECI {
+ public:
+  CBC_CommonCharacterSetECI(int32_t value, CFX_ByteString encodingName);
+  virtual ~CBC_CommonCharacterSetECI();
+  CFX_ByteString GetEncodingName();
+  static void AddCharacterSet(int32_t value, CFX_ByteString encodingName);
+  int32_t GetValue();
+  static CBC_CommonCharacterSetECI* GetCharacterSetECIByValue(int32_t value);
+  static CBC_CommonCharacterSetECI* GetCharacterSetECIByName(
+      const CFX_ByteString& name);
+
+ private:
+  CFX_ByteString m_encodingName;
+  static void initialize();
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONCHARACTERSETECI_H_
diff --git a/xfa/fxbarcode/common/BC_CommonDecoderResult.cpp b/xfa/fxbarcode/common/BC_CommonDecoderResult.cpp
new file mode 100644
index 0000000000..0c545c4eba
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonDecoderResult.cpp
@@ -0,0 +1,77 @@
+// 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 "core/include/fxcrt/fx_basic.h"
+#include "xfa/fxbarcode/common/BC_CommonDecoderResult.h"
+#include "xfa/fxbarcode/pdf417/BC_PDF417ResultMetadata.h"
+#include "xfa/fxbarcode/qrcode/BC_QRCoderErrorCorrectionLevel.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_CommonDecoderResult::CBC_CommonDecoderResult() {}
+void CBC_CommonDecoderResult::Init(const CFX_ByteArray& rawBytes,
+                                   const CFX_ByteString& text,
+                                   const CFX_Int32Array& byteSegments,
+                                   CBC_QRCoderErrorCorrectionLevel* ecLevel,
+                                   int32_t& e) {
+  if (text.IsEmpty()) {
+    e = BCExceptionIllegalArgument;
+    return;
+  }
+  m_rawBytes.Copy(rawBytes);
+  m_text = text;
+  m_byteSegments.Copy(byteSegments);
+  m_ecLevel = ecLevel;
+  m_other = NULL;
+}
+void CBC_CommonDecoderResult::Init(const CFX_ByteArray& rawBytes,
+                                   const CFX_ByteString& text,
+                                   const CFX_PtrArray& byteSegments,
+                                   const CFX_ByteString& ecLevel,
+                                   int32_t& e) {
+  if (text.IsEmpty()) {
+    e = BCExceptionIllegalArgument;
+    return;
+  }
+  m_rawBytes.Copy(rawBytes);
+  m_text = text;
+  m_pdf417byteSegments.Copy(byteSegments);
+  m_pdf417ecLevel = ecLevel;
+  m_other = NULL;
+}
+void CBC_CommonDecoderResult::setOther(CBC_PDF417ResultMetadata* other) {
+  m_other = other;
+}
+CBC_CommonDecoderResult::~CBC_CommonDecoderResult() {
+  delete m_other;
+}
+const CFX_ByteArray& CBC_CommonDecoderResult::GetRawBytes() {
+  return m_rawBytes;
+}
+const CFX_Int32Array& CBC_CommonDecoderResult::GetByteSegments() {
+  return m_byteSegments;
+}
+const CFX_ByteString& CBC_CommonDecoderResult::GetText() {
+  return m_text;
+}
+CBC_QRCoderErrorCorrectionLevel* CBC_CommonDecoderResult::GetECLevel() {
+  return m_ecLevel;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonDecoderResult.h b/xfa/fxbarcode/common/BC_CommonDecoderResult.h
new file mode 100644
index 0000000000..dbdb9d34d4
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonDecoderResult.h
@@ -0,0 +1,45 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONDECODERRESULT_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONDECODERRESULT_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_QRCoderErrorCorrectionLevel;
+class CBC_PDF417ResultMetadata;
+
+class CBC_CommonDecoderResult {
+ public:
+  CBC_CommonDecoderResult();
+  virtual ~CBC_CommonDecoderResult();
+  const CFX_ByteArray& GetRawBytes();
+  const CFX_ByteString& GetText();
+  const CFX_Int32Array& GetByteSegments();
+  CBC_QRCoderErrorCorrectionLevel* GetECLevel();
+  virtual void Init(const CFX_ByteArray& rawBytes,
+                    const CFX_ByteString& text,
+                    const CFX_Int32Array& byteSegments,
+                    CBC_QRCoderErrorCorrectionLevel* ecLevel,
+                    int32_t& e);
+  virtual void Init(const CFX_ByteArray& rawBytes,
+                    const CFX_ByteString& text,
+                    const CFX_PtrArray& byteSegments,
+                    const CFX_ByteString& ecLevel,
+                    int32_t& e);
+  void setOther(CBC_PDF417ResultMetadata* other);
+
+ private:
+  CFX_ByteArray m_rawBytes;
+  CFX_ByteString m_text;
+  CFX_Int32Array m_byteSegments;
+  CFX_PtrArray m_pdf417byteSegments;
+  CBC_QRCoderErrorCorrectionLevel* m_ecLevel;
+  CFX_ByteString m_pdf417ecLevel;
+  CBC_PDF417ResultMetadata* m_other;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONDECODERRESULT_H_
diff --git a/xfa/fxbarcode/common/BC_CommonECI.cpp b/xfa/fxbarcode/common/BC_CommonECI.cpp
new file mode 100644
index 0000000000..4e37aec566
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonECI.cpp
@@ -0,0 +1,42 @@
+// 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 2008 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/BC_CommonCharacterSetECI.h"
+#include "xfa/fxbarcode/common/BC_CommonECI.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_CommonECI::CBC_CommonECI(int32_t value) {
+  m_value = value;
+}
+CBC_CommonECI::~CBC_CommonECI() {}
+int32_t CBC_CommonECI::GetValue() {
+  return m_value;
+}
+CBC_CommonECI* CBC_CommonECI::GetEICByValue(int32_t value, int32_t& e) {
+  if (value < 0 || value > 999999) {
+    e = BCExceptionBadECI;
+    return NULL;
+  }
+  if (value < 900) {
+  }
+  return NULL;
+}
diff --git a/xfa/fxbarcode/common/BC_CommonECI.h b/xfa/fxbarcode/common/BC_CommonECI.h
new file mode 100644
index 0000000000..20b3e76bb3
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonECI.h
@@ -0,0 +1,24 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONECI_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONECI_H_
+
+#include <stdint.h>
+
+class CBC_CommonECI {
+ public:
+  CBC_CommonECI(int32_t value);
+  virtual ~CBC_CommonECI();
+
+  int32_t GetValue();
+  static CBC_CommonECI* GetEICByValue(int32_t value, int32_t& e);
+
+ private:
+  int32_t m_value;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONECI_H_
diff --git a/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.cpp b/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.cpp
new file mode 100644
index 0000000000..daa6189e56
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.cpp
@@ -0,0 +1,152 @@
+// 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/BC_CommonPerspectiveTransform.h"
+
+#include <memory>
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_CommonPerspectiveTransform::CBC_CommonPerspectiveTransform(FX_FLOAT a11,
+                                                               FX_FLOAT a21,
+                                                               FX_FLOAT a31,
+                                                               FX_FLOAT a12,
+                                                               FX_FLOAT a22,
+                                                               FX_FLOAT a32,
+                                                               FX_FLOAT a13,
+                                                               FX_FLOAT a23,
+                                                               FX_FLOAT a33)
+    : m_a11(a11),
+      m_a12(a12),
+      m_a13(a13),
+      m_a21(a21),
+      m_a22(a22),
+      m_a23(a23),
+      m_a31(a31),
+      m_a32(a32),
+      m_a33(a33) {}
+CBC_CommonPerspectiveTransform::~CBC_CommonPerspectiveTransform() {}
+CBC_CommonPerspectiveTransform*
+CBC_CommonPerspectiveTransform::QuadrilateralToQuadrilateral(FX_FLOAT x0,
+                                                             FX_FLOAT y0,
+                                                             FX_FLOAT x1,
+                                                             FX_FLOAT y1,
+                                                             FX_FLOAT x2,
+                                                             FX_FLOAT y2,
+                                                             FX_FLOAT x3,
+                                                             FX_FLOAT y3,
+                                                             FX_FLOAT x0p,
+                                                             FX_FLOAT y0p,
+                                                             FX_FLOAT x1p,
+                                                             FX_FLOAT y1p,
+                                                             FX_FLOAT x2p,
+                                                             FX_FLOAT y2p,
+                                                             FX_FLOAT x3p,
+                                                             FX_FLOAT y3p) {
+  std::unique_ptr<CBC_CommonPerspectiveTransform> qToS(
+      QuadrilateralToSquare(x0, y0, x1, y1, x2, y2, x3, y3));
+  std::unique_ptr<CBC_CommonPerspectiveTransform> sToQ(
+      SquareToQuadrilateral(x0p, y0p, x1p, y1p, x2p, y2p, x3p, y3p));
+  return sToQ->Times(*(qToS.get()));
+}
+void CBC_CommonPerspectiveTransform::TransformPoints(CFX_FloatArray* points) {
+  int32_t max = points->GetSize();
+  FX_FLOAT a11 = m_a11;
+  FX_FLOAT a12 = m_a12;
+  FX_FLOAT a13 = m_a13;
+  FX_FLOAT a21 = m_a21;
+  FX_FLOAT a22 = m_a22;
+  FX_FLOAT a23 = m_a23;
+  FX_FLOAT a31 = m_a31;
+  FX_FLOAT a32 = m_a32;
+  FX_FLOAT a33 = m_a33;
+  int32_t i;
+  for (i = 0; i < max; i += 2) {
+    FX_FLOAT x = (*points)[i];
+    FX_FLOAT y = (*points)[i + 1];
+    FX_FLOAT denominator = a13 * x + a23 * y + a33;
+    (*points)[i] = (a11 * x + a21 * y + a31) / denominator;
+    (*points)[i + 1] = (a12 * x + a22 * y + a32) / denominator;
+  }
+}
+CBC_CommonPerspectiveTransform*
+CBC_CommonPerspectiveTransform::SquareToQuadrilateral(FX_FLOAT x0,
+                                                      FX_FLOAT y0,
+                                                      FX_FLOAT x1,
+                                                      FX_FLOAT y1,
+                                                      FX_FLOAT x2,
+                                                      FX_FLOAT y2,
+                                                      FX_FLOAT x3,
+                                                      FX_FLOAT y3) {
+  FX_FLOAT dy2 = y3 - y2;
+  FX_FLOAT dy3 = y0 - y1 + y2 - y3;
+  if ((dy2 == 0.0f) && (dy3 == 0.0f)) {
+    return new CBC_CommonPerspectiveTransform(x1 - x0, x2 - x1, x0, y1 - y0,
+                                              y2 - y1, y0, 0.0f, 0.0f, 1.0f);
+  } else {
+    FX_FLOAT dx1 = x1 - x2;
+    FX_FLOAT dx2 = x3 - x2;
+    FX_FLOAT dx3 = x0 - x1 + x2 - x3;
+    FX_FLOAT dy1 = y1 - y2;
+    FX_FLOAT denominator = dx1 * dy2 - dx2 * dy1;
+    FX_FLOAT a13 = (dx3 * dy2 - dx2 * dy3) / denominator;
+    FX_FLOAT a23 = (dx1 * dy3 - dx3 * dy1) / denominator;
+    return new CBC_CommonPerspectiveTransform(
+        x1 - x0 + a13 * x1, x3 - x0 + a23 * x3, x0, y1 - y0 + a13 * y1,
+        y3 - y0 + a23 * y3, y0, a13, a23, 1.0f);
+  }
+}
+CBC_CommonPerspectiveTransform*
+CBC_CommonPerspectiveTransform::QuadrilateralToSquare(FX_FLOAT x0,
+                                                      FX_FLOAT y0,
+                                                      FX_FLOAT x1,
+                                                      FX_FLOAT y1,
+                                                      FX_FLOAT x2,
+                                                      FX_FLOAT y2,
+                                                      FX_FLOAT x3,
+                                                      FX_FLOAT y3) {
+  std::unique_ptr<CBC_CommonPerspectiveTransform> temp1(
+      SquareToQuadrilateral(x0, y0, x1, y1, x2, y2, x3, y3));
+  return temp1->BuildAdjoint();
+}
+CBC_CommonPerspectiveTransform* CBC_CommonPerspectiveTransform::BuildAdjoint() {
+  return new CBC_CommonPerspectiveTransform(
+      m_a22 * m_a33 - m_a23 * m_a32, m_a23 * m_a31 - m_a21 * m_a33,
+      m_a21 * m_a32 - m_a22 * m_a31, m_a13 * m_a32 - m_a12 * m_a33,
+      m_a11 * m_a33 - m_a13 * m_a31, m_a12 * m_a31 - m_a11 * m_a32,
+      m_a12 * m_a23 - m_a13 * m_a22, m_a13 * m_a21 - m_a11 * m_a23,
+      m_a11 * m_a22 - m_a12 * m_a21);
+}
+CBC_CommonPerspectiveTransform* CBC_CommonPerspectiveTransform::Times(
+    CBC_CommonPerspectiveTransform& other) {
+  return new CBC_CommonPerspectiveTransform(
+      m_a11 * other.m_a11 + m_a21 * other.m_a12 + m_a31 * other.m_a13,
+      m_a11 * other.m_a21 + m_a21 * other.m_a22 + m_a31 * other.m_a23,
+      m_a11 * other.m_a31 + m_a21 * other.m_a32 + m_a31 * other.m_a33,
+      m_a12 * other.m_a11 + m_a22 * other.m_a12 + m_a32 * other.m_a13,
+      m_a12 * other.m_a21 + m_a22 * other.m_a22 + m_a32 * other.m_a23,
+      m_a12 * other.m_a31 + m_a22 * other.m_a32 + m_a32 * other.m_a33,
+      m_a13 * other.m_a11 + m_a23 * other.m_a12 + m_a33 * other.m_a13,
+      m_a13 * other.m_a21 + m_a23 * other.m_a22 + m_a33 * other.m_a23,
+      m_a13 * other.m_a31 + m_a23 * other.m_a32 + m_a33 * other.m_a33);
+}
diff --git a/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h b/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h
new file mode 100644
index 0000000000..36defd8146
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_CommonPerspectiveTransform.h
@@ -0,0 +1,65 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_COMMONPERSPECTIVETRANSFORM_H_
+#define XFA_FXBARCODE_COMMON_BC_COMMONPERSPECTIVETRANSFORM_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_CommonPerspectiveTransform {
+ public:
+  CBC_CommonPerspectiveTransform(FX_FLOAT a11,
+                                 FX_FLOAT a21,
+                                 FX_FLOAT a31,
+                                 FX_FLOAT a12,
+                                 FX_FLOAT a22,
+                                 FX_FLOAT a32,
+                                 FX_FLOAT a13,
+                                 FX_FLOAT a23,
+                                 FX_FLOAT a33);
+  virtual ~CBC_CommonPerspectiveTransform();
+  static CBC_CommonPerspectiveTransform* QuadrilateralToQuadrilateral(
+      FX_FLOAT x0,
+      FX_FLOAT y0,
+      FX_FLOAT x1,
+      FX_FLOAT y1,
+      FX_FLOAT x2,
+      FX_FLOAT y2,
+      FX_FLOAT x3,
+      FX_FLOAT y3,
+      FX_FLOAT x0p,
+      FX_FLOAT y0p,
+      FX_FLOAT x1p,
+      FX_FLOAT y1p,
+      FX_FLOAT x2p,
+      FX_FLOAT y2p,
+      FX_FLOAT x3p,
+      FX_FLOAT y3p);
+  static CBC_CommonPerspectiveTransform* SquareToQuadrilateral(FX_FLOAT x0,
+                                                               FX_FLOAT y0,
+                                                               FX_FLOAT x1,
+                                                               FX_FLOAT y1,
+                                                               FX_FLOAT x2,
+                                                               FX_FLOAT y2,
+                                                               FX_FLOAT x3,
+                                                               FX_FLOAT y3);
+  static CBC_CommonPerspectiveTransform* QuadrilateralToSquare(FX_FLOAT x0,
+                                                               FX_FLOAT y0,
+                                                               FX_FLOAT x1,
+                                                               FX_FLOAT y1,
+                                                               FX_FLOAT x2,
+                                                               FX_FLOAT y2,
+                                                               FX_FLOAT x3,
+                                                               FX_FLOAT y3);
+  CBC_CommonPerspectiveTransform* BuildAdjoint();
+  CBC_CommonPerspectiveTransform* Times(CBC_CommonPerspectiveTransform& other);
+  void TransformPoints(CFX_FloatArray* points);
+
+ private:
+  FX_FLOAT m_a11, m_a12, m_a13, m_a21, m_a22, m_a23, m_a31, m_a32, m_a33;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_COMMONPERSPECTIVETRANSFORM_H_
diff --git a/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.cpp b/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.cpp
new file mode 100644
index 0000000000..d4a33229cf
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.cpp
@@ -0,0 +1,173 @@
+// 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 2009 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/BC_GlobalHistogramBinarizer.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/BC_Binarizer.h"
+#include "xfa/fxbarcode/BC_LuminanceSource.h"
+#include "xfa/fxbarcode/common/BC_CommonBitArray.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/utils.h"
+
+const int32_t LUMINANCE_BITS = 5;
+const int32_t LUMINANCE_SHIFT = 8 - LUMINANCE_BITS;
+const int32_t LUMINANCE_BUCKETS = 1 << LUMINANCE_BITS;
+
+CBC_GlobalHistogramBinarizer::CBC_GlobalHistogramBinarizer(
+    CBC_LuminanceSource* source)
+    : CBC_Binarizer(source) {}
+CBC_GlobalHistogramBinarizer::~CBC_GlobalHistogramBinarizer() {}
+CBC_CommonBitArray* CBC_GlobalHistogramBinarizer::GetBlackRow(
+    int32_t y,
+    CBC_CommonBitArray* row,
+    int32_t& e) {
+  CBC_LuminanceSource* source = GetLuminanceSource();
+  int32_t width = source->GetWidth();
+  std::unique_ptr<CBC_CommonBitArray> result(new CBC_CommonBitArray(width));
+  InitArrays(width);
+  CFX_ByteArray* localLuminances = source->GetRow(y, m_luminance, e);
+  if (e != BCExceptionNO) {
+    return result.release();
+  }
+  CFX_Int32Array localBuckets;
+  localBuckets.Copy(m_buckets);
+  int32_t x;
+  for (x = 0; x < width; x++) {
+    int32_t pixel = (*localLuminances)[x] & 0xff;
+    localBuckets[pixel >> LUMINANCE_SHIFT]++;
+  }
+  int32_t blackPoint = EstimateBlackPoint(localBuckets, e);
+  if (e != BCExceptionNO) {
+    return result.release();
+  }
+  int32_t left = (*localLuminances)[0] & 0xff;
+  int32_t center = (*localLuminances)[1] & 0xff;
+  for (x = 1; x < width - 1; x++) {
+    int32_t right = (*localLuminances)[x + 1] & 0xff;
+    int32_t luminance = ((center << 2) - left - right) >> 1;
+    if (luminance < blackPoint) {
+      result->Set(x);
+    }
+    left = center;
+    center = right;
+  }
+  return result.release();
+}
+CBC_CommonBitMatrix* CBC_GlobalHistogramBinarizer::GetBlackMatrix(int32_t& e) {
+  CBC_LuminanceSource* source = GetLuminanceSource();
+  int32_t width = source->GetWidth();
+  int32_t height = source->GetHeight();
+  std::unique_ptr<CBC_CommonBitMatrix> matrix(new CBC_CommonBitMatrix());
+  matrix->Init(width, height);
+  InitArrays(width);
+  CFX_Int32Array localBuckets;
+  localBuckets.Copy(m_buckets);
+  int32_t y;
+  for (y = 1; y < 5; y++) {
+    int32_t row = height * y / 5;
+    CFX_ByteArray* localLuminances = source->GetRow(row, m_luminance, e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    int32_t right = (width << 2) / 5;
+    int32_t x;
+    for (x = width / 5; x < right; x++) {
+      int32_t pixel = (*localLuminances)[x] & 0xff;
+      localBuckets[pixel >> LUMINANCE_SHIFT]++;
+    }
+  }
+  int32_t blackPoint = EstimateBlackPoint(localBuckets, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CFX_ByteArray> localLuminances(source->GetMatrix());
+  for (y = 0; y < height; y++) {
+    int32_t offset = y * width;
+    for (int32_t x = 0; x < width; x++) {
+      int32_t pixel = (*localLuminances)[offset + x] & 0xff;
+      if (pixel < blackPoint) {
+        matrix->Set(x, y);
+      }
+    }
+  }
+  return matrix.release();
+}
+void CBC_GlobalHistogramBinarizer::InitArrays(int32_t luminanceSize) {
+  if (m_luminance.GetSize() < luminanceSize) {
+    m_luminance.SetSize(luminanceSize);
+  }
+  if (m_buckets.GetSize() <= 0) {
+    m_buckets.SetSize(LUMINANCE_BUCKETS);
+  } else {
+    int32_t x;
+    for (x = 0; x < LUMINANCE_BUCKETS; x++) {
+      m_buckets[x] = 0;
+    }
+  }
+}
+int32_t CBC_GlobalHistogramBinarizer::EstimateBlackPoint(
+    CFX_Int32Array& buckets,
+    int32_t& e) {
+  int32_t numBuckets = buckets.GetSize();
+  int32_t maxBucketCount = 0;
+  int32_t firstPeak = 0;
+  int32_t firstPeakSize = 0;
+  int32_t x;
+  for (x = 0; x < numBuckets; x++) {
+    if (buckets[x] > firstPeakSize) {
+      firstPeak = x;
+      firstPeakSize = buckets[x];
+    }
+    if (buckets[x] > maxBucketCount) {
+      maxBucketCount = buckets[x];
+    }
+  }
+  int32_t secondPeak = 0;
+  int32_t secondPeakScore = 0;
+  for (x = 0; x < numBuckets; x++) {
+    int32_t distanceToBiggest = x - firstPeak;
+    int32_t score = buckets[x] * distanceToBiggest * distanceToBiggest;
+    if (score > secondPeakScore) {
+      secondPeak = x;
+      secondPeakScore = score;
+    }
+  }
+  if (firstPeak > secondPeak) {
+    int32_t temp = firstPeak;
+    firstPeak = secondPeak;
+    secondPeak = temp;
+  }
+  if (secondPeak - firstPeak <= numBuckets >> 4) {
+    e = BCExceptionRead;
+    return 0;
+  }
+  int32_t bestValley = secondPeak - 1;
+  int32_t bestValleyScore = -1;
+  for (x = secondPeak - 1; x > firstPeak; x--) {
+    int32_t fromFirst = x - firstPeak;
+    int32_t score = fromFirst * fromFirst * (secondPeak - x) *
+                    (maxBucketCount - buckets[x]);
+    if (score > bestValleyScore) {
+      bestValley = x;
+      bestValleyScore = score;
+    }
+  }
+  return bestValley << LUMINANCE_SHIFT;
+}
diff --git a/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h b/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h
new file mode 100644
index 0000000000..da13cac402
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_GlobalHistogramBinarizer.h
@@ -0,0 +1,34 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_GLOBALHISTOGRAMBINARIZER_H_
+#define XFA_FXBARCODE_COMMON_BC_GLOBALHISTOGRAMBINARIZER_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "xfa/fxbarcode/BC_Binarizer.h"
+
+class CBC_CommonBitArray;
+class CBC_CommonBitMatrix;
+class CBC_LuminanceSource;
+
+class CBC_GlobalHistogramBinarizer : public CBC_Binarizer {
+ public:
+  CBC_GlobalHistogramBinarizer(CBC_LuminanceSource* source);
+  virtual ~CBC_GlobalHistogramBinarizer();
+
+  void InitArrays(int32_t luminanceSize);
+  CBC_CommonBitMatrix* GetBlackMatrix(int32_t& e);
+  CBC_CommonBitArray* GetBlackRow(int32_t y,
+                                  CBC_CommonBitArray* row,
+                                  int32_t& e);
+  static int32_t EstimateBlackPoint(CFX_Int32Array& buckets, int32_t& e);
+
+ private:
+  CFX_ByteArray m_luminance;
+  CFX_Int32Array m_buckets;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_GLOBALHISTOGRAMBINARIZER_H_
diff --git a/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.cpp
new file mode 100644
index 0000000000..2aeacd1399
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.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 2010 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/BC_WhiteRectangleDetector.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/BC_ResultPoint.h"
+#include "xfa/fxbarcode/common/BC_CommonBitMatrix.h"
+#include "xfa/fxbarcode/utils.h"
+
+CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
+    CBC_CommonBitMatrix* image) {
+  m_image = image;
+  m_height = image->GetHeight();
+  m_width = image->GetWidth();
+  m_leftInit = (m_width - INIT_SIZE) >> 1;
+  m_rightInit = (m_width + INIT_SIZE) >> 1;
+  m_upInit = (m_height - INIT_SIZE) >> 1;
+  m_downInit = (m_height + INIT_SIZE) >> 1;
+}
+void CBC_WhiteRectangleDetector::Init(int32_t& e) {
+  if (m_upInit < 0 || m_leftInit < 0 || m_downInit >= m_height ||
+      m_rightInit >= m_width) {
+    e = BCExceptionNotFound;
+    BC_EXCEPTION_CHECK_ReturnVoid(e);
+  }
+}
+CBC_WhiteRectangleDetector::CBC_WhiteRectangleDetector(
+    CBC_CommonBitMatrix* image,
+    int32_t initSize,
+    int32_t x,
+    int32_t y) {
+  m_image = image;
+  m_height = image->GetHeight();
+  m_width = image->GetWidth();
+  int32_t halfsize = initSize >> 1;
+  m_leftInit = x - halfsize;
+  m_rightInit = x + halfsize;
+  m_upInit = y - halfsize;
+  m_downInit = y + halfsize;
+}
+CBC_WhiteRectangleDetector::~CBC_WhiteRectangleDetector() {}
+CFX_PtrArray* CBC_WhiteRectangleDetector::Detect(int32_t& e) {
+  int32_t left = m_leftInit;
+  int32_t right = m_rightInit;
+  int32_t up = m_upInit;
+  int32_t down = m_downInit;
+  FX_BOOL sizeExceeded = FALSE;
+  FX_BOOL aBlackPointFoundOnBorder = TRUE;
+  FX_BOOL atLeastOneBlackPointFoundOnBorder = FALSE;
+  while (aBlackPointFoundOnBorder) {
+    aBlackPointFoundOnBorder = FALSE;
+    FX_BOOL rightBorderNotWhite = TRUE;
+    while (rightBorderNotWhite && right < m_width) {
+      rightBorderNotWhite = ContainsBlackPoint(up, down, right, FALSE);
+      if (rightBorderNotWhite) {
+        right++;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (right >= m_width) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL bottomBorderNotWhite = TRUE;
+    while (bottomBorderNotWhite && down < m_height) {
+      bottomBorderNotWhite = ContainsBlackPoint(left, right, down, TRUE);
+      if (bottomBorderNotWhite) {
+        down++;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (down >= m_height) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL leftBorderNotWhite = TRUE;
+    while (leftBorderNotWhite && left >= 0) {
+      leftBorderNotWhite = ContainsBlackPoint(up, down, left, FALSE);
+      if (leftBorderNotWhite) {
+        left--;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (left < 0) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    FX_BOOL topBorderNotWhite = TRUE;
+    while (topBorderNotWhite && up >= 0) {
+      topBorderNotWhite = ContainsBlackPoint(left, right, up, TRUE);
+      if (topBorderNotWhite) {
+        up--;
+        aBlackPointFoundOnBorder = TRUE;
+      }
+    }
+    if (up < 0) {
+      sizeExceeded = TRUE;
+      break;
+    }
+    if (aBlackPointFoundOnBorder) {
+      atLeastOneBlackPointFoundOnBorder = TRUE;
+    }
+  }
+  if (!sizeExceeded && atLeastOneBlackPointFoundOnBorder) {
+    int32_t maxSize = right - left;
+    std::unique_ptr<CBC_ResultPoint> z;
+    for (int32_t i = 1; i < maxSize; i++) {
+      z.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(down - i),
+                                     (FX_FLOAT)(left + i), (FX_FLOAT)(down)));
+      if (z)
+        break;
+    }
+    if (z.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> t;
+    for (int32_t j = 1; j < maxSize; j++) {
+      t.reset(GetBlackPointOnSegment((FX_FLOAT)left, (FX_FLOAT)(up + j),
+                                     (FX_FLOAT)(left + j), (FX_FLOAT)up));
+      if (t)
+        break;
+    }
+    if (t.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> x;
+    for (int32_t k = 1; k < maxSize; k++) {
+      x.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(up + k),
+                                     (FX_FLOAT)(right - k), (FX_FLOAT)up));
+      if (x)
+        break;
+    }
+    if (x.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ResultPoint> y;
+    for (int32_t m = 1; m < maxSize; m++) {
+      y.reset(GetBlackPointOnSegment((FX_FLOAT)right, (FX_FLOAT)(down - m),
+                                     (FX_FLOAT)(right - m), (FX_FLOAT)down));
+      if (y)
+        break;
+    }
+    if (y.get() == NULL) {
+      e = BCExceptionNotFound;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    return CenterEdges(y.get(), z.get(), x.get(), t.get());
+  } else {
+    e = BCExceptionNotFound;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  return NULL;
+}
+int32_t CBC_WhiteRectangleDetector::Round(FX_FLOAT d) {
+  return (int32_t)(d + 0.5f);
+}
+CBC_ResultPoint* CBC_WhiteRectangleDetector::GetBlackPointOnSegment(
+    FX_FLOAT aX,
+    FX_FLOAT aY,
+    FX_FLOAT bX,
+    FX_FLOAT bY) {
+  int32_t dist = DistanceL2(aX, aY, bX, bY);
+  float xStep = (bX - aX) / dist;
+  float yStep = (bY - aY) / dist;
+  for (int32_t i = 0; i < dist; i++) {
+    int32_t x = Round(aX + i * xStep);
+    int32_t y = Round(aY + i * yStep);
+    if (m_image->Get(x, y)) {
+      return new CBC_ResultPoint((FX_FLOAT)x, (FX_FLOAT)y);
+    }
+  }
+  return NULL;
+}
+int32_t CBC_WhiteRectangleDetector::DistanceL2(FX_FLOAT aX,
+                                               FX_FLOAT aY,
+                                               FX_FLOAT bX,
+                                               FX_FLOAT bY) {
+  float xDiff = aX - bX;
+  float yDiff = aY - bY;
+  return Round((float)sqrt(xDiff * xDiff + yDiff * yDiff));
+}
+CFX_PtrArray* CBC_WhiteRectangleDetector::CenterEdges(CBC_ResultPoint* y,
+                                                      CBC_ResultPoint* z,
+                                                      CBC_ResultPoint* x,
+                                                      CBC_ResultPoint* t) {
+  float yi = y->GetX();
+  float yj = y->GetY();
+  float zi = z->GetX();
+  float zj = z->GetY();
+  float xi = x->GetX();
+  float xj = x->GetY();
+  float ti = t->GetX();
+  float tj = t->GetY();
+  if (yi < m_width / 2) {
+    CFX_PtrArray* result = new CFX_PtrArray;
+    result->SetSize(4);
+    (*result)[0] = new CBC_ResultPoint(ti - CORR, tj + CORR);
+    (*result)[1] = new CBC_ResultPoint(zi + CORR, zj + CORR);
+    (*result)[2] = new CBC_ResultPoint(xi - CORR, xj - CORR);
+    (*result)[3] = new CBC_ResultPoint(yi + CORR, yj - CORR);
+    return result;
+  } else {
+    CFX_PtrArray* result = new CFX_PtrArray;
+    result->SetSize(4);
+    (*result)[0] = new CBC_ResultPoint(ti + CORR, tj + CORR);
+    (*result)[1] = new CBC_ResultPoint(zi + CORR, zj - CORR);
+    (*result)[2] = new CBC_ResultPoint(xi - CORR, xj + CORR);
+    (*result)[3] = new CBC_ResultPoint(yi - CORR, yj - CORR);
+    return result;
+  }
+}
+FX_BOOL CBC_WhiteRectangleDetector::ContainsBlackPoint(int32_t a,
+                                                       int32_t b,
+                                                       int32_t fixed,
+                                                       FX_BOOL horizontal) {
+  if (horizontal) {
+    for (int32_t x = a; x <= b; x++) {
+      if (m_image->Get(x, fixed)) {
+        return TRUE;
+      }
+    }
+  } else {
+    for (int32_t y = a; y <= b; y++) {
+      if (m_image->Get(fixed, y)) {
+        return TRUE;
+      }
+    }
+  }
+  return FALSE;
+}
diff --git a/xfa/fxbarcode/common/BC_WhiteRectangleDetector.h b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.h
new file mode 100644
index 0000000000..3d6c01ceff
--- /dev/null
+++ b/xfa/fxbarcode/common/BC_WhiteRectangleDetector.h
@@ -0,0 +1,54 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_BC_WHITERECTANGLEDETECTOR_H_
+#define XFA_FXBARCODE_COMMON_BC_WHITERECTANGLEDETECTOR_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_CommonBitMatrix;
+class CBC_ResultPoint;
+
+class CBC_WhiteRectangleDetector {
+ public:
+  CBC_WhiteRectangleDetector(CBC_CommonBitMatrix* image);
+  CBC_WhiteRectangleDetector(CBC_CommonBitMatrix* image,
+                             int32_t initSize,
+                             int32_t x,
+                             int32_t y);
+  virtual ~CBC_WhiteRectangleDetector();
+  CFX_PtrArray* Detect(int32_t& e);
+  virtual void Init(int32_t& e);
+
+ private:
+  int32_t Round(float d);
+  CBC_ResultPoint* GetBlackPointOnSegment(FX_FLOAT aX,
+                                          FX_FLOAT aY,
+                                          FX_FLOAT bX,
+                                          FX_FLOAT bY);
+  int32_t DistanceL2(FX_FLOAT aX, FX_FLOAT aY, FX_FLOAT bX, FX_FLOAT bY);
+  CFX_PtrArray* CenterEdges(CBC_ResultPoint* y,
+                            CBC_ResultPoint* z,
+                            CBC_ResultPoint* x,
+                            CBC_ResultPoint* t);
+  FX_BOOL ContainsBlackPoint(int32_t a,
+                             int32_t b,
+                             int32_t fixed,
+                             FX_BOOL horizontal);
+
+  static const int32_t INIT_SIZE = 30;
+  static const int32_t CORR = 1;
+
+  CBC_CommonBitMatrix* m_image;
+  int32_t m_height;
+  int32_t m_width;
+  int32_t m_leftInit;
+  int32_t m_rightInit;
+  int32_t m_downInit;
+  int32_t m_upInit;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_BC_WHITERECTANGLEDETECTOR_H_
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
new file mode 100644
index 0000000000..4d986cca26
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.cpp
@@ -0,0 +1,104 @@
+// 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_ReedSolomon.h"
+
+#include <memory>
+
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h"
+
+CBC_ReedSolomonEncoder::CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field) {
+  m_field = field;
+}
+void CBC_ReedSolomonEncoder::Init() {
+  m_cachedGenerators.Add(new CBC_ReedSolomonGF256Poly(m_field, 1));
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonEncoder::BuildGenerator(int32_t degree,
+                                                                 int32_t& e) {
+  if (degree >= m_cachedGenerators.GetSize()) {
+    CBC_ReedSolomonGF256Poly* lastGenerator =
+        (CBC_ReedSolomonGF256Poly*)(m_cachedGenerators
+                                        [m_cachedGenerators.GetSize() - 1]);
+    for (int32_t 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,
+                                    int32_t ecBytes,
+                                    int32_t& e) {
+  if (ecBytes == 0) {
+    e = BCExceptionNoCorrectionBytes;
+    BC_EXCEPTION_CHECK_ReturnVoid(e);
+  }
+  int32_t 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 (int32_t x = 0; x < dataBytes; x++) {
+    infoCoefficients[x] = toEncode->operator[](x);
+  }
+  CBC_ReedSolomonGF256Poly info;
+  info.Init(m_field, &infoCoefficients, e);
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> infoTemp(
+      info.MultiplyByMonomial(ecBytes, 1, e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  std::unique_ptr<CFX_PtrArray> temp(infoTemp->Divide(generator, e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  CBC_ReedSolomonGF256Poly* remainder =
+      (CBC_ReedSolomonGF256Poly*)(temp->operator[](1));
+  CFX_Int32Array* coefficients = remainder->GetCoefficients();
+  int32_t numZeroCoefficients = ecBytes - coefficients->GetSize();
+  for (int32_t i = 0; i < numZeroCoefficients; i++) {
+    (*toEncode)[dataBytes + i] = 0;
+  }
+  for (int32_t y = 0; y < coefficients->GetSize(); y++) {
+    (*toEncode)[dataBytes + numZeroCoefficients + y] =
+        coefficients->operator[](y);
+  }
+  for (int32_t k = 0; k < temp->GetSize(); k++) {
+    delete (CBC_ReedSolomonGF256Poly*)(*temp)[k];
+  }
+}
+CBC_ReedSolomonEncoder::~CBC_ReedSolomonEncoder() {
+  for (int32_t i = 0; i < m_cachedGenerators.GetSize(); i++) {
+    delete (CBC_ReedSolomonGF256Poly*)m_cachedGenerators[i];
+  }
+}
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.h b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.h
new file mode 100644
index 0000000000..6f6aef7e7d
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomon.h
@@ -0,0 +1,29 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_
+#define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_ReedSolomonGF256;
+class CBC_ReedSolomonGF256Poly;
+
+class CBC_ReedSolomonEncoder {
+ private:
+  CBC_ReedSolomonGF256* m_field;
+  CFX_PtrArray m_cachedGenerators;
+  CBC_ReedSolomonGF256Poly* BuildGenerator(int32_t degree, int32_t& e);
+
+ public:
+  CBC_ReedSolomonEncoder(CBC_ReedSolomonGF256* field);
+  virtual ~CBC_ReedSolomonEncoder();
+
+  void Encode(CFX_Int32Array* toEncode, int32_t ecBytes, int32_t& e);
+  virtual void Init();
+};
+
+#endif  // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMON_H_
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp
new file mode 100644
index 0000000000..ff91c9ddc3
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.cpp
@@ -0,0 +1,221 @@
+// 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_ReedSolomonDecoder.h"
+
+#include <memory>
+#include <utility>
+
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.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);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> temp(
+      m_field->BuildMonomial(twoS, 1, e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  std::unique_ptr<CFX_PtrArray> sigmaOmega(
+      RunEuclideanAlgorithm(temp.get(), &syndrome, twoS, e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> sigma(
+      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[0]);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> omega(
+      (CBC_ReedSolomonGF256Poly*)(*sigmaOmega)[1]);
+  std::unique_ptr<CFX_Int32Array> errorLocations(
+      FindErrorLocations(sigma.get(), e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  std::unique_ptr<CFX_Int32Array> errorMagnitudes(
+      FindErrorMagnitudes(omega.get(), errorLocations.get(), dataMatrix, e));
+  BC_EXCEPTION_CHECK_ReturnVoid(e);
+  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;
+  }
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> rLast(a->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> r(b->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> sLast(m_field->GetOne()->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> s(m_field->GetZero()->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> tLast(m_field->GetZero()->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> t(m_field->GetOne()->Clone(e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  while (r->GetDegree() >= R / 2) {
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> rLastLast = std::move(rLast);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> sLastLast = std::move(sLast);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> tLastlast = std::move(tLast);
+    rLast = std::move(r);
+    sLast = std::move(s);
+    tLast = std::move(t);
+    if (rLast->IsZero()) {
+      e = BCExceptionR_I_1IsZero;
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    r.reset(rLastLast->Clone(e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> q(m_field->GetZero()->Clone(e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    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);
+      std::unique_ptr<CBC_ReedSolomonGF256Poly> build(
+          m_field->BuildMonomial(degreeDiff, scale, e));
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      q.reset(q->AddOrSubtract(build.get(), e));
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      std::unique_ptr<CBC_ReedSolomonGF256Poly> multiply(
+          rLast->MultiplyByMonomial(degreeDiff, scale, e));
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+      r.reset(r->AddOrSubtract(multiply.get(), e));
+      BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    }
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> temp1(
+        q->Multiply(sLast.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    s.reset(temp1->AddOrSubtract(sLastLast.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    std::unique_ptr<CBC_ReedSolomonGF256Poly> temp5(
+        q->Multiply(tLast.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    t.reset(temp5->AddOrSubtract(tLastlast.get(), e));
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  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);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> sigma(t->Multiply(inverse, e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  std::unique_ptr<CBC_ReedSolomonGF256Poly> omega(r->Multiply(inverse, e));
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  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) {
+    std::unique_ptr<CFX_Int32Array> temp(new CFX_Int32Array);
+    temp->Add(errorLocator->GetCoefficients(1));
+    return temp.release();
+  }
+  CFX_Int32Array* tempT = new CFX_Int32Array;
+  tempT->SetSize(numErrors);
+  std::unique_ptr<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);
+  std::unique_ptr<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();
+}
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h
new file mode 100644
index 0000000000..ec14344fe0
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonDecoder.h
@@ -0,0 +1,35 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_
+#define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_ReedSolomonGF256;
+class CBC_ReedSolomonGF256Poly;
+
+class CBC_ReedSolomonDecoder {
+ private:
+  CBC_ReedSolomonGF256* m_field;
+
+ public:
+  CBC_ReedSolomonDecoder(CBC_ReedSolomonGF256* field);
+  virtual ~CBC_ReedSolomonDecoder();
+  void Decode(CFX_Int32Array* received, int32_t twoS, int32_t& e);
+  CFX_PtrArray* RunEuclideanAlgorithm(CBC_ReedSolomonGF256Poly* a,
+                                      CBC_ReedSolomonGF256Poly* b,
+                                      int32_t R,
+                                      int32_t& e);
+  CFX_Int32Array* FindErrorLocations(CBC_ReedSolomonGF256Poly* errorLocator,
+                                     int32_t& e);
+  CFX_Int32Array* FindErrorMagnitudes(CBC_ReedSolomonGF256Poly* errorEvaluator,
+                                      CFX_Int32Array* errorLocations,
+                                      FX_BOOL dataMatrix,
+                                      int32_t& e);
+};
+
+#endif  // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONDECODER_H_
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp
new file mode 100644
index 0000000000..5e9fd33ac4
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.cpp
@@ -0,0 +1,124 @@
+// 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_ReedSolomonGF256.h"
+#include "xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h"
+
+CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::QRCodeFild = NULL;
+CBC_ReedSolomonGF256* CBC_ReedSolomonGF256::DataMatrixField = NULL;
+void CBC_ReedSolomonGF256::Initialize() {
+  QRCodeFild = new CBC_ReedSolomonGF256(0x011D);
+  QRCodeFild->Init();
+  DataMatrixField = 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(int32_t primitive) {
+  int32_t x = 1;
+  for (int32_t j = 0; j < 256; j++) {
+    m_expTable[j] = x;
+    x <<= 1;
+    if (x >= 0x100) {
+      x ^= primitive;
+    }
+  }
+  for (int32_t i = 0; i < 255; i++) {
+    m_logTable[m_expTable[i]] = i;
+  }
+  m_logTable[0] = 0;
+}
+void CBC_ReedSolomonGF256::Init() {
+  m_zero = new CBC_ReedSolomonGF256Poly(this, 0);
+  m_one = new CBC_ReedSolomonGF256Poly(this, 1);
+}
+CBC_ReedSolomonGF256::~CBC_ReedSolomonGF256() {
+  delete m_zero;
+  delete m_one;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetZero() {
+  return m_zero;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::GetOne() {
+  return m_one;
+}
+CBC_ReedSolomonGF256Poly* CBC_ReedSolomonGF256::BuildMonomial(
+    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_zero->Clone(e);
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+    return temp;
+  }
+  CFX_Int32Array coefficients;
+  coefficients.SetSize(degree + 1);
+  coefficients[0] = coefficient;
+  CBC_ReedSolomonGF256Poly* temp = new CBC_ReedSolomonGF256Poly();
+  temp->Init(this, &coefficients, e);
+  BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  return temp;
+}
+int32_t CBC_ReedSolomonGF256::AddOrSubtract(int32_t a, int32_t b) {
+  return a ^ b;
+}
+int32_t CBC_ReedSolomonGF256::Exp(int32_t a) {
+  return m_expTable[a];
+}
+int32_t CBC_ReedSolomonGF256::Log(int32_t a, int32_t& e) {
+  if (a == 0) {
+    e = BCExceptionAIsZero;
+    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+  }
+  return m_logTable[a];
+}
+int32_t CBC_ReedSolomonGF256::Inverse(int32_t a, int32_t& e) {
+  if (a == 0) {
+    e = BCExceptionAIsZero;
+    BC_EXCEPTION_CHECK_ReturnValue(e, 0);
+  }
+  return m_expTable[255 - m_logTable[a]];
+}
+int32_t CBC_ReedSolomonGF256::Multiply(int32_t a, int32_t 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];
+}
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
new file mode 100644
index 0000000000..099cab57d5
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256.h
@@ -0,0 +1,41 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
+#define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+#include "xfa/fxbarcode/utils.h"
+
+class CBC_ReedSolomonGF256Poly;
+class CBC_ReedSolomonGF256 {
+ public:
+  static void Initialize();
+  static void Finalize();
+  static CBC_ReedSolomonGF256* QRCodeFild;
+  static CBC_ReedSolomonGF256* DataMatrixField;
+  CBC_ReedSolomonGF256(int32_t primitive);
+  virtual ~CBC_ReedSolomonGF256();
+  CBC_ReedSolomonGF256Poly* GetZero();
+  CBC_ReedSolomonGF256Poly* GetOne();
+  CBC_ReedSolomonGF256Poly* BuildMonomial(int32_t degree,
+                                          int32_t coefficient,
+                                          int32_t& e);
+  static int32_t AddOrSubtract(int32_t a, int32_t b);
+  int32_t Exp(int32_t a);
+  int32_t Log(int32_t a, int32_t& e);
+  int32_t Inverse(int32_t a, int32_t& e);
+  int32_t Multiply(int32_t a, int32_t b);
+  virtual void Init();
+
+ private:
+  int32_t m_expTable[256];
+  int32_t m_logTable[256];
+  CBC_ReedSolomonGF256Poly* m_zero;
+  CBC_ReedSolomonGF256Poly* m_one;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256_H_
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();
+}
diff --git a/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h
new file mode 100644
index 0000000000..16a1f9066e
--- /dev/null
+++ b/xfa/fxbarcode/common/reedsolomon/BC_ReedSolomonGF256Poly.h
@@ -0,0 +1,43 @@
+// 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
+
+#ifndef XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
+#define XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_
+
+#include "core/include/fxcrt/fx_basic.h"
+
+class CBC_ReedSolomonGF256;
+
+class CBC_ReedSolomonGF256Poly {
+ public:
+  CBC_ReedSolomonGF256Poly(CBC_ReedSolomonGF256* field, int32_t coefficients);
+  CBC_ReedSolomonGF256Poly();
+  virtual ~CBC_ReedSolomonGF256Poly();
+  int32_t GetCoefficients(int32_t degree);
+  CFX_Int32Array* GetCoefficients();
+  int32_t GetDegree();
+  FX_BOOL IsZero();
+  int32_t EvaluateAt(int32_t a);
+  CBC_ReedSolomonGF256Poly* AddOrSubtract(CBC_ReedSolomonGF256Poly* other,
+                                          int32_t& e);
+  CBC_ReedSolomonGF256Poly* Multiply(CBC_ReedSolomonGF256Poly* other,
+                                     int32_t& e);
+  CBC_ReedSolomonGF256Poly* Multiply(int32_t scalar, int32_t& e);
+  CBC_ReedSolomonGF256Poly* MultiplyByMonomial(int32_t degree,
+                                               int32_t coefficient,
+                                               int32_t& e);
+  CFX_PtrArray* Divide(CBC_ReedSolomonGF256Poly* other, int32_t& e);
+  CBC_ReedSolomonGF256Poly* Clone(int32_t& e);
+  virtual void Init(CBC_ReedSolomonGF256* field,
+                    CFX_Int32Array* coefficients,
+                    int32_t& e);
+
+ private:
+  CBC_ReedSolomonGF256* m_field;
+  CFX_Int32Array m_coefficients;
+};
+
+#endif  // XFA_FXBARCODE_COMMON_REEDSOLOMON_BC_REEDSOLOMONGF256POLY_H_