1 files changed, 32 insertions, 0 deletions
diff --git a/tests/Camera2Tests/SmartCamera/SimpleCamera/jni/imgprocutil.h b/tests/Camera2Tests/SmartCamera/SimpleCamera/jni/imgprocutil.h
new file mode 100644
index 0000000..aef67a5
--- /dev/null
+++ b/tests/Camera2Tests/SmartCamera/SimpleCamera/jni/imgprocutil.h
@@ -0,0 +1,32 @@
+/*
+ * Copyright (C) 2012 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.
+ */
+
+// Some native low-level image processing functions.
+
+
+#ifndef ANDROID_FILTERFW_JNI_IMGPROCUTIL_H
+#define ANDROID_FILTERFW_JNI_IMGPROCUTIL_H
+
+inline int getIntensityFast(int R, int G, int B) {
+    return (R + R + R + B + G + G + G + G) >> 3;  // see http://stackoverflow.com/a/596241
+}
+
+inline int clamp(int min, int val, int max) {
+    return val < min ? min : (val > max ? max : val);
+        // Note that for performance reasons, this function does *not* check if min < max!
+}
+
+#endif // ANDROID_FILTERFW_JNI_IMGPROCUTIL_H