/*
 * Copyright (C) 2014-2017 Intel Corporation.
 * Copyright (c) 2017, Fuzhou Rockchip Electronics Co., Ltd
 *
 * 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 CAMERA3_HAL_UTILS_H
#define CAMERA3_HAL_UTILS_H

#include <string>
#include <vector>

NAMESPACE_DECLARATION {
// Parse string like "640x480" or "10000,20000"
// copy from android CameraParameters.cpp
int parsePair(const char *str, int *first, int *second, char delim, char **endptr = nullptr);

//Resize a 2D array with linear interpolation
//For some cases, we need to upscale or downscale a 2D array.
//For example, Android requests lensShadingMapSize must be smaller than 64*64,
//but for some sensors, the lens shading map is bigger than this, so need to do resize.
template <typename T> int resize2dArray(
    const T* a_src, int a_src_w, int a_src_h,
    T* a_dst, int a_dst_w, int a_dst_h);

// Splits a string into substrings and stores them into vector.
void getTokens(const char *s, const char delim, std::vector<std::string> &tokens);

typedef int64_t nsecs_t;       // nano-seconds

// return the system-time according to the specified clock
nsecs_t systemTime();

} NAMESPACE_DECLARATION_END

#endif // CAMERA3_HAL_UTILS_H