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108 lines
3.0 KiB
C++
108 lines
3.0 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018-2019 Edouard Griffiths, F4EXB <f4exb06@gmail.com> //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#ifndef SDRBASE_UTIL_MAX2D_H_
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#define SDRBASE_UTIL_MAX2D_H_
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#include <algorithm>
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template<typename T>
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class Max2D
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{
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public:
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Max2D() : m_max(0), m_maxSize(0), m_width(0), m_size(0), m_maxIndex(0) {}
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~Max2D()
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{
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if (m_max) {
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delete[] m_max;
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}
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}
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void resize(unsigned int width, unsigned int size)
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{
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if (width > m_maxSize)
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{
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m_maxSize = width;
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if (m_max) {
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delete[] m_max;
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}
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m_max = new T[m_maxSize];
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}
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m_width = width;
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m_size = size;
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std::fill(m_max, m_max+m_width, 0);
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m_maxIndex = 0;
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}
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bool storeAndGetMax(T& max, T v, unsigned int index)
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{
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if (m_size <= 1)
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{
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max = v;
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return true;
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}
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if (m_maxIndex == 0)
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{
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m_max[index] = v;
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return false;
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}
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else if (m_maxIndex == m_size - 1)
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{
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m_max[index] = std::max(m_max[index], v);
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max = m_max[index];
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return true;
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}
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else
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{
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m_max[index] = std::max(m_max[index], v);
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return false;
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}
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}
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bool nextMax()
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{
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if (m_size <= 1) {
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return true;
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}
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if (m_maxIndex == m_size - 1)
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{
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m_maxIndex = 0;
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std::fill(m_max, m_max+m_width, 0);
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return true;
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}
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else
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{
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m_maxIndex++;
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return false;
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}
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}
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private:
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T *m_max;
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unsigned int m_maxSize;
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unsigned int m_width;
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unsigned int m_size;
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unsigned int m_maxIndex;
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};
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#endif /* SDRBASE_UTIL_MAX2D_H_ */
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