• Home
  • Line#
  • Scopes#
  • Navigate#
  • Raw
  • Download
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 #define LOG_NDDEBUG 0
31 #include <inttypes.h>
32 
33 #include "profiler.h"
34 
35 #ifdef DEBUG_CALC_FPS
36 
37 
38 ANDROID_SINGLETON_STATIC_INSTANCE(qdutils::CalcFps) ;
39 
40 namespace qdutils {
41 
CalcFps()42 CalcFps::CalcFps() {
43     debug_fps_level = 0;
44     Init();
45 }
46 
~CalcFps()47 CalcFps::~CalcFps() {
48 }
49 
Init()50 void CalcFps::Init() {
51     char prop[PROPERTY_VALUE_MAX];
52     property_get("debug.gr.calcfps", prop, "0");
53     debug_fps_level = atoi(prop);
54     if (debug_fps_level > MAX_DEBUG_FPS_LEVEL) {
55         ALOGW("out of range value for debug.gr.calcfps, using 0");
56         debug_fps_level = 0;
57     }
58 
59     ALOGD("DEBUG_CALC_FPS: %d", debug_fps_level);
60     populate_debug_fps_metadata();
61 }
62 
Fps()63 void CalcFps::Fps() {
64     if (debug_fps_level > 0)
65         calc_fps(ns2us(systemTime()));
66 }
67 
populate_debug_fps_metadata(void)68 void CalcFps::populate_debug_fps_metadata(void)
69 {
70     char prop[PROPERTY_VALUE_MAX];
71 
72     /*defaults calculation of fps to based on number of frames*/
73     property_get("debug.gr.calcfps.type", prop, "0");
74     debug_fps_metadata.type = (debug_fps_metadata_t::DfmType) atoi(prop);
75 
76     /*defaults to 1000ms*/
77     property_get("debug.gr.calcfps.timeperiod", prop, "1000");
78     debug_fps_metadata.time_period = atoi(prop);
79 
80     property_get("debug.gr.calcfps.period", prop, "10");
81     debug_fps_metadata.period = atoi(prop);
82 
83     if (debug_fps_metadata.period > MAX_FPS_CALC_PERIOD_IN_FRAMES) {
84         debug_fps_metadata.period = MAX_FPS_CALC_PERIOD_IN_FRAMES;
85     }
86 
87     /* default ignorethresh_us: 500 milli seconds */
88     property_get("debug.gr.calcfps.ignorethresh_us", prop, "500000");
89     debug_fps_metadata.ignorethresh_us = atoi(prop);
90 
91     debug_fps_metadata.framearrival_steps =
92         (unsigned int)(debug_fps_metadata.ignorethresh_us / 16666);
93 
94     if (debug_fps_metadata.framearrival_steps > MAX_FRAMEARRIVAL_STEPS) {
95         debug_fps_metadata.framearrival_steps = MAX_FRAMEARRIVAL_STEPS;
96         debug_fps_metadata.ignorethresh_us =
97             debug_fps_metadata.framearrival_steps * 16666;
98     }
99 
100     /* 2ms margin of error for the gettimeofday */
101     debug_fps_metadata.margin_us = 2000;
102 
103     for (unsigned int i = 0; i < MAX_FRAMEARRIVAL_STEPS; i++)
104         debug_fps_metadata.accum_framearrivals[i] = 0;
105 
106     debug_fps_metadata.curr_frame = 0;
107 
108     ALOGD("period: %u", debug_fps_metadata.period);
109     ALOGD("ignorethresh_us: %" PRId64, debug_fps_metadata.ignorethresh_us);
110 }
111 
print_fps(float fps)112 void CalcFps::print_fps(float fps)
113 {
114     if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type)
115         ALOGD("FPS for last %d frames: %3.2f", debug_fps_metadata.period, fps);
116     else
117         ALOGD("FPS for last (%f ms, %d frames): %3.2f",
118               debug_fps_metadata.time_elapsed,
119               debug_fps_metadata.curr_frame, fps);
120 
121     debug_fps_metadata.curr_frame = 0;
122     debug_fps_metadata.time_elapsed = 0.0;
123 
124     if (debug_fps_level > 1) {
125         ALOGD("Frame Arrival Distribution:");
126         for (unsigned int i = 0;
127              i < ((debug_fps_metadata.framearrival_steps / 6) + 1);
128              i++) {
129             ALOGD("%" PRId64 " %" PRId64 " %" PRId64 " %" PRId64 " %" PRId64 " %" PRId64,
130                   debug_fps_metadata.accum_framearrivals[i*6],
131                   debug_fps_metadata.accum_framearrivals[i*6+1],
132                   debug_fps_metadata.accum_framearrivals[i*6+2],
133                   debug_fps_metadata.accum_framearrivals[i*6+3],
134                   debug_fps_metadata.accum_framearrivals[i*6+4],
135                   debug_fps_metadata.accum_framearrivals[i*6+5]);
136         }
137 
138         /* We are done with displaying, now clear the stats */
139         for (unsigned int i = 0;
140              i < debug_fps_metadata.framearrival_steps;
141              i++)
142             debug_fps_metadata.accum_framearrivals[i] = 0;
143     }
144     return;
145 }
146 
calc_fps(nsecs_t currtime_us)147 void CalcFps::calc_fps(nsecs_t currtime_us)
148 {
149     static nsecs_t oldtime_us = 0;
150 
151     nsecs_t diff = currtime_us - oldtime_us;
152 
153     oldtime_us = currtime_us;
154 
155     if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type &&
156         diff > debug_fps_metadata.ignorethresh_us) {
157         return;
158     }
159 
160     if (debug_fps_metadata.curr_frame < MAX_FPS_CALC_PERIOD_IN_FRAMES) {
161         debug_fps_metadata.framearrivals[debug_fps_metadata.curr_frame] = diff;
162     }
163 
164     debug_fps_metadata.curr_frame++;
165 
166     if (debug_fps_level > 1) {
167         unsigned int currstep =
168             (unsigned int)(diff + debug_fps_metadata.margin_us) / 16666;
169 
170         if (currstep < debug_fps_metadata.framearrival_steps) {
171             debug_fps_metadata.accum_framearrivals[currstep-1]++;
172         }
173     }
174 
175     if (debug_fps_metadata_t::DFM_FRAMES == debug_fps_metadata.type) {
176         if (debug_fps_metadata.curr_frame == debug_fps_metadata.period) {
177             /* time to calculate and display FPS */
178             nsecs_t sum = 0;
179             for (unsigned int i = 0; i < debug_fps_metadata.period; i++)
180                 sum += debug_fps_metadata.framearrivals[i];
181             print_fps(float(float(debug_fps_metadata.period * 1000000) /
182                                                               (float)sum));
183         }
184     }
185     else if (debug_fps_metadata_t::DFM_TIME == debug_fps_metadata.type) {
186         debug_fps_metadata.time_elapsed += (float)((float)diff/1000.0);
187         if (debug_fps_metadata.time_elapsed >= debug_fps_metadata.time_period) {
188             float fps = float(1000.0 * debug_fps_metadata.curr_frame/
189                                             debug_fps_metadata.time_elapsed);
190             print_fps(fps);
191         }
192     }
193     return;
194 }
195 };//namespace qomutils
196 #endif
197