pStatGPUTimer.h

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/**
 * PANDA 3D SOFTWARE
 * Copyright (c) Carnegie Mellon University.  All rights reserved.
 *
 * All use of this software is subject to the terms of the revised BSD
 * license.  You should have received a copy of this license along
 * with this source code in a file named "LICENSE."
 *
 * @file pStatGPUTimer.h
 * @author rdb
 * @date 2014-08-21
 */
 
#ifndef PSTATGPUTIMER_H
#define PSTATGPUTIMER_H
 
#include "pandabase.h"
#include "pStatTimer.h"
#include "pStatCollector.h"
#include "config_pstatclient.h"
#include "timerQueryContext.h"
 
class Thread;
class GraphicsStateGuardian;
 
/**
 * This is a special type of PStatTimer that also uses a timer query on the
 * GSG to measure how long a task actually takes to execute on the GPU, rather
 * than how long it took for the API commands to be queued up.
 *
 * This class may only be used on the draw thread.
 *
 * At present, it tracks both the CPU time (like a regular PStatTimer does)
 * and the GPU time, which is recorded using a special PStatThread.
 */
class EXPCL_PANDA_DISPLAY PStatGPUTimer : public PStatTimer {
public:
#ifdef DO_PSTATS
  INLINE PStatGPUTimer(GraphicsStateGuardian *gsg,
                       PStatCollector &collector);
  INLINE PStatGPUTimer(GraphicsStateGuardian *gsg,
                       PStatCollector &collector,
                       Thread *current_thread);
  INLINE ~PStatGPUTimer();
 
  GraphicsStateGuardian *_gsg;
 
private:
#else // DO_PSTATS
 
  INLINE PStatGPUTimer(GraphicsStateGuardian *, PStatCollector &col)
    : PStatTimer(col) { }
  INLINE PStatGPUTimer(GraphicsStateGuardian *, PStatCollector &col, Thread *)
    : PStatTimer(col) { }
  INLINE ~PStatGPUTimer() { }
 
#endif  // DO_PSTATS
};
 
#include "pStatGPUTimer.I"
 
#endif