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/*M///////////////////////////////////////////////////////////////////////////////////////
//
// IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
//
// By downloading, copying, installing or using the software you agree to this license.
// If you do not agree to this license, do not download, install,
// copy or use the software.
//
//
// License Agreement
// For Open Source Computer Vision Library
//
// Copyright (C) 2000-2008, Intel Corporation, all rights reserved.
// Copyright (C) 2009, Willow Garage Inc., all rights reserved.
// Third party copyrights are property of their respective owners.
//
// Redistribution and use in source and binary forms, with or without modification,
// are permitted provided that the following conditions are met:
//
// * Redistribution's of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
//
// * Redistribution's in binary form must reproduce the above copyright notice,
// this list of conditions and the following disclaimer in the documentation
// and/or other materials provided with the distribution.
//
// * The name of the copyright holders may not be used to endorse or promote products
// derived from this software without specific prior written permission.
//
// This software is provided by the copyright holders and contributors "as is" and
// any express or implied warranties, including, but not limited to, the implied
// warranties of merchantability and fitness for a particular purpose are disclaimed.
// In no event shall the Intel Corporation or contributors be liable for any direct,
// indirect, incidental, special, exemplary, or consequential damages
// (including, but not limited to, procurement of substitute goods or services;
// loss of use, data, or profits; or business interruption) however caused
// and on any theory of liability, whether in contract, strict liability,
// or tort (including negligence or otherwise) arising in any way out of
// the use of this software, even if advised of the possibility of such damage.
//
//M*/
#ifndef __OPENCV_STITCHING_UTIL_HPP__
#define __OPENCV_STITCHING_UTIL_HPP__
#include <list>
#include "opencv2/core/core.hpp"
#define ENABLE_LOG 0
// TODO remove LOG macros, add logging class
#if ENABLE_LOG
#ifdef ANDROID
#include <iostream>
#include <sstream>
#include <android/log.h>
#define LOG_STITCHING_MSG(msg) \
do { \
std::stringstream _os; \
_os << msg; \
__android_log_print(ANDROID_LOG_DEBUG, "STITCHING", "%s", _os.str().c_str()); \
} while(0);
#else
#include <iostream>
#define LOG_STITCHING_MSG(msg) for(;;) { std::cout << msg; std::cout.flush(); break; }
#endif
#else
#define LOG_STITCHING_MSG(msg)
#endif
#define LOG_(_level, _msg) \
for(;;) \
{ \
if ((_level) >= ::cv::detail::stitchingLogLevel()) \
{ \
LOG_STITCHING_MSG(_msg); \
} \
break; \
}
#define LOG(msg) LOG_(1, msg)
#define LOG_CHAT(msg) LOG_(0, msg)
#define LOGLN(msg) LOG(msg << std::endl)
#define LOGLN_CHAT(msg) LOG_CHAT(msg << std::endl)
//#if DEBUG_LOG_CHAT
// #define LOG_CHAT(msg) LOG(msg)
// #define LOGLN_CHAT(msg) LOGLN(msg)
//#else
// #define LOG_CHAT(msg) do{}while(0)
// #define LOGLN_CHAT(msg) do{}while(0)
//#endif
namespace cv {
namespace detail {
class CV_EXPORTS DisjointSets
{
public:
DisjointSets(int elem_count = 0) { createOneElemSets(elem_count); }
void createOneElemSets(int elem_count);
int findSetByElem(int elem);
int mergeSets(int set1, int set2);
std::vector<int> parent;
std::vector<int> size;
private:
std::vector<int> rank_;
};
struct CV_EXPORTS GraphEdge
{
GraphEdge(int from, int to, float weight);
bool operator <(const GraphEdge& other) const { return weight < other.weight; }
bool operator >(const GraphEdge& other) const { return weight > other.weight; }
int from, to;
float weight;
};
inline GraphEdge::GraphEdge(int _from, int _to, float _weight) : from(_from), to(_to), weight(_weight) {}
class CV_EXPORTS Graph
{
public:
Graph(int num_vertices = 0) { create(num_vertices); }
void create(int num_vertices) { edges_.assign(num_vertices, std::list<GraphEdge>()); }
int numVertices() const { return static_cast<int>(edges_.size()); }
void addEdge(int from, int to, float weight);
template <typename B> B forEach(B body) const;
template <typename B> B walkBreadthFirst(int from, B body) const;
private:
std::vector< std::list<GraphEdge> > edges_;
};
//////////////////////////////////////////////////////////////////////////////
// Auxiliary functions
CV_EXPORTS bool overlapRoi(Point tl1, Point tl2, Size sz1, Size sz2, Rect &roi);
CV_EXPORTS Rect resultRoi(const std::vector<Point> &corners, const std::vector<Mat> &images);
CV_EXPORTS Rect resultRoi(const std::vector<Point> &corners, const std::vector<Size> &sizes);
CV_EXPORTS Point resultTl(const std::vector<Point> &corners);
// Returns random 'count' element subset of the {0,1,...,size-1} set
CV_EXPORTS void selectRandomSubset(int count, int size, std::vector<int> &subset);
CV_EXPORTS int& stitchingLogLevel();
} // namespace detail
} // namespace cv
#include "util_inl.hpp"
#endif // __OPENCV_STITCHING_UTIL_HPP__
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