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/*
* Copyright (c) 2011-2012, The Linux Foundation. All rights reserved.
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
* * Neither the name of The Linux Foundation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS
* 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.
*/
#ifndef INCLUDE_PROFILER
#define INCLUDE_PROFILER
#include <stdio.h>
#include <utils/Singleton.h>
#include <cutils/properties.h>
#include <cutils/log.h>
#ifndef DEBUG_CALC_FPS
#define CALC_FPS() ((void)0)
#define CALC_INIT() ((void)0)
#else
#define CALC_FPS() qdutils::CalcFps::getInstance().Fps()
#define CALC_INIT() qdutils::CalcFps::getInstance().Init()
using namespace android;
namespace qdutils {
class CalcFps : public Singleton<CalcFps> {
public:
CalcFps();
~CalcFps();
void Init();
void Fps();
private:
static const unsigned int MAX_FPS_CALC_PERIOD_IN_FRAMES = 128;
static const unsigned int MAX_FRAMEARRIVAL_STEPS = 50;
static const unsigned int MAX_DEBUG_FPS_LEVEL = 2;
struct debug_fps_metadata_t {
/*fps calculation based on time or number of frames*/
enum DfmType {
DFM_FRAMES = 0,
DFM_TIME = 1,
};
DfmType type;
/* indicates how much time do we wait till we calculate FPS */
unsigned long time_period;
/*indicates how much time elapsed since we report fps*/
float time_elapsed;
/* indicates how many frames do we wait till we calculate FPS */
unsigned int period;
/* current frame, will go upto period, and then reset */
unsigned int curr_frame;
/* frame will arrive at a multiple of 16666 us at the display.
This indicates how many steps to consider for our calculations.
For example, if framearrival_steps = 10, then the frame that arrived
after 166660 us or more will be ignored.
*/
unsigned int framearrival_steps;
/* ignorethresh_us = framearrival_steps * 16666 */
nsecs_t ignorethresh_us;
/* used to calculate the actual frame arrival step, the times might not be
accurate
*/
unsigned int margin_us;
/* actual data storage */
nsecs_t framearrivals[MAX_FPS_CALC_PERIOD_IN_FRAMES];
nsecs_t accum_framearrivals[MAX_FRAMEARRIVAL_STEPS];
};
private:
void populate_debug_fps_metadata(void);
void print_fps(float fps);
void calc_fps(nsecs_t currtime_us);
private:
debug_fps_metadata_t debug_fps_metadata;
unsigned int debug_fps_level;
};
};//namespace qdutils
#endif
#endif // INCLUDE_PROFILER
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