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