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Diffstat (limited to 'samples/SampleBase/utils/SampleTime.h')
| -rwxr-xr-x[-rw-r--r--] | samples/SampleBase/utils/SampleTime.h | 150 |
1 files changed, 75 insertions, 75 deletions
diff --git a/samples/SampleBase/utils/SampleTime.h b/samples/SampleBase/utils/SampleTime.h index 0de529f..876f86b 100644..100755 --- a/samples/SampleBase/utils/SampleTime.h +++ b/samples/SampleBase/utils/SampleTime.h @@ -1,76 +1,76 @@ -// This code contains NVIDIA Confidential Information and is disclosed to you -// under a form of NVIDIA software license agreement provided separately to you. -// -// Notice -// NVIDIA Corporation and its licensors retain all intellectual property and -// proprietary rights in and to this software and related documentation and -// any modifications thereto. Any use, reproduction, disclosure, or -// distribution of this software and related documentation without an express -// license agreement from NVIDIA Corporation is strictly prohibited. -// -// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES -// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO -// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT, -// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE. -// -// Information and code furnished is believed to be accurate and reliable. -// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such -// information or for any infringement of patents or other rights of third parties that may -// result from its use. No license is granted by implication or otherwise under any patent -// or patent rights of NVIDIA Corporation. Details are subject to change without notice. -// This code supersedes and replaces all information previously supplied. -// NVIDIA Corporation products are not authorized for use as critical -// components in life support devices or systems without express written approval of -// NVIDIA Corporation. -// -// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved. - - -#ifndef SAMPLE_TIME_H -#define SAMPLE_TIME_H - -#include <stdint.h> - -class Time -{ -public: - Time() : m_lastTickCount(getTimeTicks()) {} - - double Time::getElapsedSeconds() - { - const int64_t lastTickCount = m_lastTickCount; - m_lastTickCount = getTimeTicks(); - return (m_lastTickCount - lastTickCount) * s_secondsPerTick; - } - - double Time::peekElapsedSeconds() const - { - return (getTimeTicks() - m_lastTickCount) * s_secondsPerTick; - } - - double Time::getLastTime() const - { - return m_lastTickCount * s_secondsPerTick; - } - -private: - static double getTickDuration() - { - LARGE_INTEGER a; - QueryPerformanceFrequency(&a); - return 1.0 / (double)a.QuadPart; - } - - int64_t getTimeTicks() const - { - LARGE_INTEGER a; - QueryPerformanceCounter(&a); - return a.QuadPart; - } - - int64_t m_lastTickCount; - static const double s_secondsPerTick; -}; - - +// This code contains NVIDIA Confidential Information and is disclosed to you
+// under a form of NVIDIA software license agreement provided separately to you.
+//
+// Notice
+// NVIDIA Corporation and its licensors retain all intellectual property and
+// proprietary rights in and to this software and related documentation and
+// any modifications thereto. Any use, reproduction, disclosure, or
+// distribution of this software and related documentation without an express
+// license agreement from NVIDIA Corporation is strictly prohibited.
+//
+// ALL NVIDIA DESIGN SPECIFICATIONS, CODE ARE PROVIDED "AS IS.". NVIDIA MAKES
+// NO WARRANTIES, EXPRESSED, IMPLIED, STATUTORY, OR OTHERWISE WITH RESPECT TO
+// THE MATERIALS, AND EXPRESSLY DISCLAIMS ALL IMPLIED WARRANTIES OF NONINFRINGEMENT,
+// MERCHANTABILITY, AND FITNESS FOR A PARTICULAR PURPOSE.
+//
+// Information and code furnished is believed to be accurate and reliable.
+// However, NVIDIA Corporation assumes no responsibility for the consequences of use of such
+// information or for any infringement of patents or other rights of third parties that may
+// result from its use. No license is granted by implication or otherwise under any patent
+// or patent rights of NVIDIA Corporation. Details are subject to change without notice.
+// This code supersedes and replaces all information previously supplied.
+// NVIDIA Corporation products are not authorized for use as critical
+// components in life support devices or systems without express written approval of
+// NVIDIA Corporation.
+//
+// Copyright (c) 2008-2018 NVIDIA Corporation. All rights reserved.
+
+
+#ifndef SAMPLE_TIME_H
+#define SAMPLE_TIME_H
+
+#include <stdint.h>
+
+class Time
+{
+public:
+ Time() : m_lastTickCount(getTimeTicks()) {}
+
+ double Time::getElapsedSeconds()
+ {
+ const int64_t lastTickCount = m_lastTickCount;
+ m_lastTickCount = getTimeTicks();
+ return (m_lastTickCount - lastTickCount) * s_secondsPerTick;
+ }
+
+ double Time::peekElapsedSeconds() const
+ {
+ return (getTimeTicks() - m_lastTickCount) * s_secondsPerTick;
+ }
+
+ double Time::getLastTime() const
+ {
+ return m_lastTickCount * s_secondsPerTick;
+ }
+
+private:
+ static double getTickDuration()
+ {
+ LARGE_INTEGER a;
+ QueryPerformanceFrequency(&a);
+ return 1.0 / (double)a.QuadPart;
+ }
+
+ int64_t getTimeTicks() const
+ {
+ LARGE_INTEGER a;
+ QueryPerformanceCounter(&a);
+ return a.QuadPart;
+ }
+
+ int64_t m_lastTickCount;
+ static const double s_secondsPerTick;
+};
+
+
#endif
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