mirror of
https://github.com/yuzu-emu/FasTC.git
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107 lines
3.7 KiB
C++
107 lines
3.7 KiB
C++
/* FasTC
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* Copyright (c) 2012 University of North Carolina at Chapel Hill. All rights reserved.
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*
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* Permission to use, copy, modify, and distribute this software and its documentation for educational,
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* research, and non-profit purposes, without fee, and without a written agreement is hereby granted,
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* provided that the above copyright notice, this paragraph, and the following four paragraphs appear
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* in all copies.
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*
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* Permission to incorporate this software into commercial products may be obtained by contacting the
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* authors or the Office of Technology Development at the University of North Carolina at Chapel Hill <otd@unc.edu>.
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*
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* This software program and documentation are copyrighted by the University of North Carolina at Chapel Hill.
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* The software program and documentation are supplied "as is," without any accompanying services from the
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* University of North Carolina at Chapel Hill or the authors. The University of North Carolina at Chapel Hill
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* and the authors do not warrant that the operation of the program will be uninterrupted or error-free. The
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* end-user understands that the program was developed for research purposes and is advised not to rely
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* exclusively on the program for any reason.
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*
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* IN NO EVENT SHALL THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE AUTHORS BE LIABLE TO ANY PARTY FOR
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* DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES, INCLUDING LOST PROFITS, ARISING OUT OF THE
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* USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL OR THE
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* AUTHORS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* THE UNIVERSITY OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS SPECIFICALLY DISCLAIM ANY WARRANTIES, INCLUDING,
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* BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ANY
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* STATUTORY WARRANTY OF NON-INFRINGEMENT. THE SOFTWARE PROVIDED HEREUNDER IS ON AN "AS IS" BASIS, AND THE UNIVERSITY
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* OF NORTH CAROLINA AT CHAPEL HILL AND THE AUTHORS HAVE NO OBLIGATIONS TO PROVIDE MAINTENANCE, SUPPORT, UPDATES,
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* ENHANCEMENTS, OR MODIFICATIONS.
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*
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* Please send all BUG REPORTS to <pavel@cs.unc.edu>.
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*
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* The authors may be contacted via:
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*
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* Pavel Krajcevski
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* Dept of Computer Science
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* 201 S Columbia St
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* Frederick P. Brooks, Jr. Computer Science Bldg
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* Chapel Hill, NC 27599-3175
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* USA
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*
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* <http://gamma.cs.unc.edu/FasTC/>
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*/
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#include "StopWatch.h"
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#include "TexCompTypes.h"
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#include <stdlib.h>
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#include <string.h>
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#include <time.h>
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class StopWatchImpl {
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public:
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timespec ts;
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double timer;
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double duration;
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};
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StopWatch::StopWatch(const StopWatch &other) {
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impl = new StopWatchImpl();
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memcpy(impl, other.impl, sizeof(StopWatchImpl));
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}
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StopWatch &StopWatch::operator=(const StopWatch &other) {
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if(impl) {
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delete impl;
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}
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impl = new StopWatchImpl();
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memcpy(impl, other.impl, sizeof(StopWatchImpl));
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return *this;
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}
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StopWatch::~StopWatch() {
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delete impl;
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}
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StopWatch::StopWatch() : impl(new StopWatchImpl) {
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Reset();
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}
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void StopWatch::Start() {
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clock_gettime(CLOCK_REALTIME, &(impl->ts));
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impl->timer = double(impl->ts.tv_sec) + 1e-9 * double(impl->ts.tv_nsec);
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}
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void StopWatch::Stop() {
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clock_gettime(CLOCK_REALTIME, &(impl->ts));
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impl->duration = -(impl->timer) + (double(impl->ts.tv_sec) + 1e-9 * double(impl->ts.tv_nsec));
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}
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void StopWatch::Reset() {
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impl->timer = impl->duration = 0.0;
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memset(&(impl->ts), 0, sizeof(timespec));
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}
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double StopWatch::TimeInSeconds() const {
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return impl->duration;
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}
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double StopWatch::TimeInMilliseconds() const {
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return impl->duration * 1000;
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}
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double StopWatch::TimeInMicroseconds() const {
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return impl->duration * 1000000;
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}
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