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