1 /* 2 * Copyright (c) 2011-2012, The Linux Foundation. All rights reserved. 3 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: 7 * * Redistributions of source code must retain the above copyright 8 * notice, this list of conditions and the following disclaimer. 9 * * Redistributions in binary form must reproduce the above 10 * copyright notice, this list of conditions and the following 11 * disclaimer in the documentation and/or other materials provided 12 * with the distribution. 13 * * Neither the name of The Linux Foundation nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED 18 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF 19 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS 21 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 24 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 25 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE 26 * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN 27 * IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #ifndef INCLUDE_PROFILER 31 #define INCLUDE_PROFILER 32 33 #include <stdio.h> 34 #include <utils/Singleton.h> 35 #include <cutils/properties.h> 36 #include <cutils/log.h> 37 38 #ifndef DEBUG_CALC_FPS 39 #define CALC_FPS() ((void)0) 40 #define CALC_INIT() ((void)0) 41 #else 42 #define CALC_FPS() qdutils::CalcFps::getInstance().Fps() 43 #define CALC_INIT() qdutils::CalcFps::getInstance().Init() 44 using namespace android; 45 namespace qdutils { 46 class CalcFps : public Singleton<CalcFps> { 47 public: 48 CalcFps(); 49 ~CalcFps(); 50 51 void Init(); 52 void Fps(); 53 54 private: 55 static const unsigned int MAX_FPS_CALC_PERIOD_IN_FRAMES = 128; 56 static const unsigned int MAX_FRAMEARRIVAL_STEPS = 50; 57 static const unsigned int MAX_DEBUG_FPS_LEVEL = 2; 58 59 struct debug_fps_metadata_t { 60 /*fps calculation based on time or number of frames*/ 61 enum DfmType { 62 DFM_FRAMES = 0, 63 DFM_TIME = 1, 64 }; 65 66 DfmType type; 67 68 /* indicates how much time do we wait till we calculate FPS */ 69 unsigned long time_period; 70 71 /*indicates how much time elapsed since we report fps*/ 72 float time_elapsed; 73 74 /* indicates how many frames do we wait till we calculate FPS */ 75 unsigned int period; 76 /* current frame, will go upto period, and then reset */ 77 unsigned int curr_frame; 78 /* frame will arrive at a multiple of 16666 us at the display. 79 This indicates how many steps to consider for our calculations. 80 For example, if framearrival_steps = 10, then the frame that arrived 81 after 166660 us or more will be ignored. 82 */ 83 unsigned int framearrival_steps; 84 /* ignorethresh_us = framearrival_steps * 16666 */ 85 nsecs_t ignorethresh_us; 86 /* used to calculate the actual frame arrival step, the times might not be 87 accurate 88 */ 89 unsigned int margin_us; 90 91 /* actual data storage */ 92 nsecs_t framearrivals[MAX_FPS_CALC_PERIOD_IN_FRAMES]; 93 nsecs_t accum_framearrivals[MAX_FRAMEARRIVAL_STEPS]; 94 }; 95 96 private: 97 void populate_debug_fps_metadata(void); 98 void print_fps(float fps); 99 void calc_fps(nsecs_t currtime_us); 100 101 private: 102 debug_fps_metadata_t debug_fps_metadata; 103 unsigned int debug_fps_level; 104 }; 105 };//namespace qdutils 106 #endif 107 108 #endif // INCLUDE_PROFILER 109