1 files changed, 37 insertions, 0 deletions
diff --git a/jni/feature_mos/src/mosaic/EdgePointerUtil.h b/jni/feature_mos/src/mosaic/EdgePointerUtil.h
new file mode 100644
index 0000000..fad05d7
--- /dev/null
+++ b/jni/feature_mos/src/mosaic/EdgePointerUtil.h
@@ -0,0 +1,37 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * 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.
+ */
+
+#ifndef _EDGEPOINTERUTIL_H_
+#define _EDGEPOINTERUTIL_H_
+
+typedef short EdgePointer;
+
+inline EdgePointer sym(EdgePointer a)
+{
+  return a ^ 2;
+}
+
+inline EdgePointer rot(EdgePointer a)
+{
+  return (((a) + 1) & 3) | ((a) & ~3);
+}
+
+inline EdgePointer rotinv(EdgePointer a)
+{
+  return (((a) + 3) & 3) | ((a) & ~3);
+}
+
+#endif //_EDGEPOINTERUTIL_H_