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/*
* Copyright (C) 2007 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 ANDROID_SURFACE_FLINGER_CLZ_H
#include <stdint.h>
namespace android {
int inline clz(int32_t x) {
return __builtin_clz(x);
}
template <typename T>
static inline T min(T a, T b) {
return a<b ? a : b;
}
template <typename T>
static inline T min(T a, T b, T c) {
return min(a, min(b, c));
}
template <typename T>
static inline T min(T a, T b, T c, T d) {
return min(a, b, min(c, d));
}
template <typename T>
static inline T max(T a, T b) {
return a>b ? a : b;
}
template <typename T>
static inline T max(T a, T b, T c) {
return max(a, max(b, c));
}
template <typename T>
static inline T max(T a, T b, T c, T d) {
return max(a, b, max(c, d));
}
template <typename T>
static inline
void swap(T& a, T& b) {
T t(a);
a = b;
b = t;
}
}; // namespace android
#endif /* ANDROID_SURFACE_FLINGER_CLZ_H */
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