/usr/include/vtk-7.1/vtkOpenGLRenderTimer.h is in libvtk7-dev 7.1.1+dfsg1-2.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 | /*=========================================================================
Program: Visualization Toolkit
Module: vtkOpenGLRenderTimer.h
Copyright (c) Ken Martin, Will Schroeder, Bill Lorensen
All rights reserved.
See Copyright.txt or http://www.kitware.com/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notice for more information.
=========================================================================*/
/**
* @class vtkOpenGLRenderTimer
* @brief Asynchronously measures GPU execution time.
*
*
* This class posts events to the OpenGL server to measure execution times
* of GPU processes. The queries are asynchronous and multiple
* vtkOpenGLRenderTimers may overlap / be nested.
*
* This uses GL_TIMESTAMP rather than GL_ELAPSED_TIME, since only one
* GL_ELAPSED_TIME query may be active at a time. Since GL_TIMESTAMP is not
* available on OpenGL ES2
*/
#ifndef vtkOpenGLRenderTimer_h
#define vtkOpenGLRenderTimer_h
#include "vtkRenderingOpenGL2Module.h" // For export macro
#include "vtkType.h" // For vtkTypeUint64, etc
class VTKRENDERINGOPENGL2_EXPORT vtkOpenGLRenderTimer
{
public:
vtkOpenGLRenderTimer();
~vtkOpenGLRenderTimer();
/**
* Clear out any previous results and prepare for a new query.
*/
void Reset();
/**
* Mark the start of a timed event.
*/
void Start();
/**
* Mark the end of a timed event.
*/
void Stop();
/**
* Returns true if the timer has been started. The query may not be ready yet.
*/
bool Started();
/**
* Returns true if the timer has been stopped. The query may not be ready yet.
*/
bool Stopped();
/**
* Returns true when the timing results are available.
*/
bool Ready();
//@{
/**
* If Ready() returns true, get the elapsed time in the requested units.
*/
float GetElapsedSeconds();
float GetElapsedMilliseconds();
vtkTypeUInt64 GetElapsedNanoseconds();
//@}
protected:
bool StartReady;
bool EndReady;
vtkTypeUInt32 StartQuery;
vtkTypeUInt32 EndQuery;
vtkTypeUInt64 StartTime;
vtkTypeUInt64 EndTime;
private:
vtkOpenGLRenderTimer(const vtkOpenGLRenderTimer&) VTK_DELETE_FUNCTION;
void operator=(const vtkOpenGLRenderTimer&) VTK_DELETE_FUNCTION;
};
#endif // vtkOpenGLRenderTimer_h
// VTK-HeaderTest-Exclude: vtkOpenGLRenderTimer.h
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