1 files changed, 118 insertions, 0 deletions
diff --git a/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp b/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp
new file mode 100644
index 0000000000..20f94069f4
--- /dev/null
+++ b/xfa/fxbarcode/qrcode/BC_QRDataMask.cpp
@@ -0,0 +1,118 @@
+// 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_CommonBitMatrix.h"
+#include "xfa/fxbarcode/qrcode/BC_QRDataMask.h"
+#include "xfa/fxbarcode/utils.h"
+
+static int32_t N_DATA_MASKS = 0;
+CFX_PtrArray* CBC_QRDataMask::DATA_MASKS = NULL;
+
+void CBC_QRDataMask::Initialize() {
+  DATA_MASKS = new CFX_PtrArray();
+  N_DATA_MASKS = BuildDataMasks();
+}
+void CBC_QRDataMask::Finalize() {
+  Destroy();
+  delete DATA_MASKS;
+}
+void CBC_QRDataMask::Destroy() {
+  int32_t i;
+  for (i = 0; i < N_DATA_MASKS; i++) {
+    CBC_QRDataMask* p = (CBC_QRDataMask*)(*DATA_MASKS)[i];
+    if (p) {
+      delete p;
+    }
+  }
+}
+void CBC_QRDataMask::UnmaskBitMatirx(CBC_CommonBitMatrix* bits,
+                                     int32_t dimension) {
+  for (int32_t i = 0; i < dimension; i++) {
+    for (int32_t j = 0; j < dimension; j++) {
+      if (IsMasked(i, j)) {
+        bits->Flip(j, i);
+      }
+    }
+  }
+}
+CBC_QRDataMask* CBC_QRDataMask::ForReference(int32_t reference, int32_t& e) {
+  if (reference < 0 || reference > 7) {
+    e = BCExceptionReferenceMustBeBetween0And7;
+    BC_EXCEPTION_CHECK_ReturnValue(e, NULL);
+  }
+  return (CBC_QRDataMask*)(*DATA_MASKS)[reference];
+}
+class DataMask000 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) { return ((x + y) % 2) == 0; }
+};
+class DataMask001 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) { return (x % 2) == 0; }
+};
+class DataMask010 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) { return y % 3 == 0; }
+};
+class DataMask011 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) { return (x + y) % 3 == 0; }
+};
+class DataMask100 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) {
+    return (((x >> 1) + (y / 3)) % 2) == 0;
+  }
+};
+class DataMask101 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) {
+    size_t temp = x * y;
+    return (temp % 2) + (temp % 3) == 0;
+  }
+};
+class DataMask110 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) {
+    size_t temp = x * y;
+    return (((temp % 2) + (temp % 3)) % 2) == 0;
+  }
+};
+class DataMask111 : public CBC_QRDataMask {
+ public:
+  FX_BOOL IsMasked(int32_t x, int32_t y) {
+    return ((((x + y) % 2) + ((x * y) % 3)) % 2) == 0;
+  }
+};
+int32_t CBC_QRDataMask::BuildDataMasks() {
+  DATA_MASKS->Add(new DataMask000);
+  DATA_MASKS->Add(new DataMask001);
+  DATA_MASKS->Add(new DataMask010);
+  DATA_MASKS->Add(new DataMask011);
+  DATA_MASKS->Add(new DataMask100);
+  DATA_MASKS->Add(new DataMask101);
+  DATA_MASKS->Add(new DataMask110);
+  DATA_MASKS->Add(new DataMask111);
+  return DATA_MASKS->GetSize();
+}
+CBC_QRDataMask::CBC_QRDataMask() {}
+CBC_QRDataMask::~CBC_QRDataMask() {}