| /*********************************************************************** | |
| * Software License Agreement (BSD License) | |
| * | |
| * Copyright 2008-2009 Marius Muja (mariusm@cs.ubc.ca). All rights reserved. | |
| * Copyright 2008-2009 David G. Lowe (lowe@cs.ubc.ca). All rights reserved. | |
| * | |
| * THE BSD LICENSE | |
| * | |
| * Redistribution and use in source and binary forms, with or without | |
| * modification, are permitted provided that the following conditions | |
| * are met: | |
| * | |
| * 1. Redistributions of source code must retain the above copyright | |
| * notice, this list of conditions and the following disclaimer. | |
| * 2. Redistributions in binary form must reproduce the above copyright | |
| * notice, this list of conditions and the following disclaimer in the | |
| * documentation and/or other materials provided with the distribution. | |
| * | |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR | |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES | |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. | |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, | |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT | |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF | |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| *************************************************************************/ | |
| //! @cond IGNORED | |
| namespace cvflann | |
| { | |
| /** | |
| * A start-stop timer class. | |
| * | |
| * Can be used to time portions of code. | |
| */ | |
| class StartStopTimer | |
| { | |
| int64 startTime; | |
| public: | |
| /** | |
| * Value of the timer. | |
| */ | |
| double value; | |
| /** | |
| * Constructor. | |
| */ | |
| StartStopTimer() | |
| : startTime(0) | |
| { | |
| reset(); | |
| } | |
| /** | |
| * Starts the timer. | |
| */ | |
| void start() | |
| { | |
| startTime = cv::getTickCount(); | |
| } | |
| /** | |
| * Stops the timer and updates timer value. | |
| */ | |
| void stop() | |
| { | |
| int64 stopTime = cv::getTickCount(); | |
| value += ( (double)stopTime - startTime) / cv::getTickFrequency(); | |
| } | |
| /** | |
| * Resets the timer value to 0. | |
| */ | |
| void reset() | |
| { | |
| value = 0; | |
| } | |
| }; | |
| } | |
| //! @endcond | |