1 files changed, 124 insertions, 0 deletions
diff --git a/fxbarcode/common/BC_CommonBitArray.cpp b/fxbarcode/common/BC_CommonBitArray.cpp
new file mode 100644
index 0000000000..34cdb65174
--- /dev/null
+++ b/fxbarcode/common/BC_CommonBitArray.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 "fxbarcode/common/BC_CommonBitArray.h"
+
+#include <utility>
+
+#include "fxbarcode/utils.h"
+
+CBC_CommonBitArray::CBC_CommonBitArray(CBC_CommonBitArray* array) {
+  m_size = array->GetSize();
+  m_bits = array->GetBits();
+}
+
+CBC_CommonBitArray::CBC_CommonBitArray() {
+  m_bits.resize(1);
+  m_size = 0;
+}
+
+CBC_CommonBitArray::CBC_CommonBitArray(int32_t size) {
+  m_bits.resize((size + 31) >> 5);
+  m_size = size;
+}
+
+CBC_CommonBitArray::~CBC_CommonBitArray() {}
+
+size_t CBC_CommonBitArray::GetSize() {
+  return m_size;
+}
+
+std::vector<int32_t>& CBC_CommonBitArray::GetBits() {
+  return m_bits;
+}
+
+size_t CBC_CommonBitArray::GetSizeInBytes() {
+  return (m_size + 7) >> 3;
+}
+
+bool CBC_CommonBitArray::Get(size_t i) {
+  return (m_bits[i >> 5] & (1 << (i & 0x1f))) != 0;
+}
+
+void CBC_CommonBitArray::Set(size_t i) {
+  m_bits[i >> 5] |= 1 << (i & 0x1F);
+}
+
+void CBC_CommonBitArray::Flip(size_t i) {
+  m_bits[i >> 5] ^= 1 << (i & 0x1F);
+}
+
+void CBC_CommonBitArray::SetBulk(size_t i, int32_t newBits) {
+  m_bits[i >> 5] = newBits;
+}
+
+void CBC_CommonBitArray::Clear() {
+  for (auto& value : m_bits)
+    value = 0;
+}
+
+bool CBC_CommonBitArray::IsRange(size_t start,
+                                 size_t end,
+                                 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.data();
+}
+
+void CBC_CommonBitArray::Reverse() {
+  std::vector<int32_t> newBits(m_bits.size());
+  for (size_t i = 0; i < m_size; i++) {
+    if (Get(m_size - i - 1))
+      newBits[i >> 5] |= 1 << (i & 0x1F);
+  }
+  m_bits = std::move(newBits);
+}