kopia lustrzana https://github.com/f4exb/sdrangel
109 wiersze
3.1 KiB
C++
109 wiersze
3.1 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
|
|
// Copyright (C) 2018 F4EXB //
|
|
// written by Edouard Griffiths //
|
|
// //
|
|
// This program is free software; you can redistribute it and/or modify //
|
|
// it under the terms of the GNU General Public License as published by //
|
|
// the Free Software Foundation as version 3 of the License, or //
|
|
// (at your option) any later version. //
|
|
// //
|
|
// This program is distributed in the hope that it will be useful, //
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of //
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
|
|
// GNU General Public License V3 for more details. //
|
|
// //
|
|
// You should have received a copy of the GNU General Public License //
|
|
// along with this program. If not, see <http://www.gnu.org/licenses/>. //
|
|
///////////////////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SDRBASE_UTIL_MAX2D_H_
|
|
#define SDRBASE_UTIL_MAX2D_H_
|
|
|
|
#include <algorithm>
|
|
|
|
template<typename T>
|
|
class Max2D
|
|
{
|
|
public:
|
|
Max2D() : m_max(0), m_maxSize(0), m_width(0), m_size(0), m_maxIndex(0) {}
|
|
|
|
~Max2D()
|
|
{
|
|
if (m_max) {
|
|
delete[] m_max;
|
|
}
|
|
}
|
|
|
|
void resize(unsigned int width, unsigned int size)
|
|
{
|
|
if (width > m_maxSize)
|
|
{
|
|
m_maxSize = width;
|
|
if (m_max) {
|
|
delete[] m_max;
|
|
}
|
|
m_max = new T[m_maxSize];
|
|
}
|
|
|
|
m_width = width;
|
|
m_size = size;
|
|
|
|
std::fill(m_max, m_max+m_width, 0);
|
|
m_maxIndex = 0;
|
|
}
|
|
|
|
bool storeAndGetMax(T& max, T v, unsigned int index)
|
|
{
|
|
if (m_size <= 1)
|
|
{
|
|
max = v;
|
|
return true;
|
|
}
|
|
|
|
if (m_maxIndex == 0)
|
|
{
|
|
m_max[index] = v;
|
|
return false;
|
|
}
|
|
else if (m_maxIndex == m_size - 1)
|
|
{
|
|
m_max[index] = std::max(m_max[index], v);
|
|
max = m_max[index];
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
m_max[index] = std::max(m_max[index], v);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
bool nextMax()
|
|
{
|
|
if (m_size <= 1) {
|
|
return true;
|
|
}
|
|
|
|
if (m_maxIndex == m_size - 1)
|
|
{
|
|
m_maxIndex = 0;
|
|
std::fill(m_max, m_max+m_width, 0);
|
|
return true;
|
|
}
|
|
else
|
|
{
|
|
m_maxIndex++;
|
|
return false;
|
|
}
|
|
}
|
|
|
|
private:
|
|
T *m_max;
|
|
unsigned int m_maxSize;
|
|
unsigned int m_width;
|
|
unsigned int m_size;
|
|
unsigned int m_maxIndex;
|
|
};
|
|
|
|
#endif /* SDRBASE_UTIL_MAX2D_H_ */
|