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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/***************************************************************************
* memchecker.h
*
* Sat Jan 16 18:27:52 CET 2016
* Copyright 2016 André Nusser
* andre.nusser@googlemail.com
****************************************************************************/
/*
* This file is part of DrumGizmo.
*
* DrumGizmo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation; either version 3 of the License, or
* (at your option) any later version.
*
* DrumGizmo 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 Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with DrumGizmo; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
*/
#pragma once
#include "drumkit.h"
#include <string>
// includes cstdint automatically and is needed for the PRIu64 macro
#include <cinttypes>
class MemChecker
{
public:
//! Checks if there is enough memory left to load drumkit into RAM.
//! \param drumkit The drumkit for which it is checked if there's enough memory left.
//! \return True iff there is enough memory left.
bool enoughFreeMemory(const DrumKit& drumkit) const;
protected:
// Computes how much RAM (in bytes) is left.
uint64_t calcFreeMemory() const;
// Computes how much memory the drumkit takes when loaded into RAM (in bytes).
uint64_t calcNeededMemory(const DrumKit& drumkit) const;
// Computes the number of bytes per channel of <filename> using libsnd.
uint64_t calcBytesPerChannel(const std::string& filename) const;
};
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