Kayne Ruse
49 lines
1.4 KiB
C++
49 lines
1.4 KiB
C++
/* Copyright: (c) Kayne Ruse 2014
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*
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* This software is provided 'as-is', without any express or implied
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* warranty. In no event will the authors be held liable for any damages
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* arising from the use of this software.
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*
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* Permission is granted to anyone to use this software for any purpose,
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* including commercial applications, and to alter it and redistribute it
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* freely, subject to the following restrictions:
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*
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* 1. The origin of this software must not be misrepresented; you must not
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* claim that you wrote the original software. If you use this software
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* in a product, an acknowledgment in the product documentation would be
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* appreciated but is not required.
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*
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* 2. Altered source versions must be plainly marked as such, and must not be
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* misrepresented as being the original software.
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*
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* 3. This notice may not be removed or altered from any source
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* distribution.
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*/
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#ifndef FRAMERATE_HPP_
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#define FRAMERATE_HPP_
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#include <chrono>
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class FrameRate {
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public:
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typedef std::chrono::high_resolution_clock Clock;
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FrameRate() = default;
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int Calculate() {
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frameCount++;
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if (Clock::now() - tick >= std::chrono::duration<int>(1)) {
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lastFrameRate = frameCount;
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frameCount = 0;
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tick = Clock::now();
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}
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return lastFrameRate;
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}
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int GetFrameRate() { return lastFrameRate; }
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private:
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int frameCount = 0;
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int lastFrameRate = 0;
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Clock::time_point tick = Clock::now();
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};
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#endif
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