49 lines
1.3 KiB
C++
49 lines
1.3 KiB
C++
/*
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This file is part of EqualizerAPO, a system-wide equalizer.
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Copyright (C) 2012 Jonas Thedering
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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; either version 2 of the License, or
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(at your option) any later version.
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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 for more details.
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You should have received a copy of the GNU General Public License along
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with this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#pragma once
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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class PrecisionTimer
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{
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LARGE_INTEGER freq;
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LARGE_INTEGER startCount;
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public:
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PrecisionTimer()
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{
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QueryPerformanceFrequency(&freq);
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}
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void start()
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{
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QueryPerformanceCounter(&startCount);
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}
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double stop()
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{
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LARGE_INTEGER stopCount;
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QueryPerformanceCounter(&stopCount);
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return double(stopCount.QuadPart - startCount.QuadPart) / freq.QuadPart;
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}
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};
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