2 * Copyright (C) 2076 Robin Gareus <robin@gareus.org>
3 * Copyright (C) 2011 Paul Davis
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version 2
8 * of the License, or (at your option) any later version.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
21 #include <gtkmm/button.h>
22 #include <gtkmm/table.h>
24 #include "timecode/time.h"
26 #include "idleometer.h"
29 static int64_t _x_get_monotonic_usec() {
30 #ifdef PLATFORM_WINDOWS
31 return PBD::get_microseconds();
33 return g_get_monotonic_time();
38 IdleOMeter::IdleOMeter ()
39 : ArdourDialog (_("Idle O Meter"))
41 get_vbox()->set_spacing (8);
42 Label* l = manage (new Label (_("<b>GUI Idle Timing Statistics</b>"), ALIGN_CENTER));
45 HBox* hbox = manage (new HBox ());
46 Table* t = manage (new Table ());
47 hbox->pack_start (*t, true, false);
49 Button* b = manage (new Button (_("Reset")));
50 b->signal_clicked().connect (sigc::mem_fun(*this, &IdleOMeter::reset));
52 get_vbox()->pack_start (*l, false, false);
53 get_vbox()->pack_start (*hbox, false, false);
54 get_vbox()->pack_start (*b, false, false);
56 _label_cur.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
57 _label_min.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
58 _label_max.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
59 _label_avg.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
60 _label_dev.set_alignment (ALIGN_RIGHT, ALIGN_CENTER);
61 _label_acq.set_alignment (ALIGN_CENTER, ALIGN_CENTER);
64 t->attach (*manage (new Label (_("Current:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
65 t->attach (_label_cur, 1, 2, row, row + 1, FILL, SHRINK);
67 t->attach (*manage (new Label (_("Min:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
68 t->attach (_label_min, 1, 2, row, row + 1, FILL, SHRINK);
70 t->attach (*manage (new Label (_("Max:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
71 t->attach (_label_max, 1, 2, row, row + 1, FILL, SHRINK);
73 t->attach (*manage (new Label (_("Mean:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
74 t->attach (_label_avg, 1, 2, row, row + 1, FILL, SHRINK);
76 t->attach (*manage (new Label (_("\u03c3:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
77 t->attach (_label_dev, 1, 2, row, row + 1, FILL, SHRINK);
79 t->attach (*manage (new Label (_("Elapsed:"), ALIGN_RIGHT)), 0, 1, row, row + 1, FILL, SHRINK);
80 t->attach (_label_acq, 1, 2, row, row + 1, FILL, SHRINK);
83 IdleOMeter::~IdleOMeter ()
85 _idle_connection.disconnect ();
91 const int64_t now = _x_get_monotonic_usec ();
92 const int64_t elapsed = now - _last;
94 _max = std::max (_max, elapsed);
95 _min = std::min (_min, elapsed);
100 const double cnt = _cnt;
102 /* running variance */
107 const double var_m1 = _var_m;
108 const double t = elapsed;
109 _var_m += (t - _var_m) / cnt;
110 _var_s += (t - _var_m) * (t - var_m1);
113 if (now - _last_display < 100000 || _cnt < 2) {
117 const double avg = _total / cnt;
118 const double stddev = sqrt (_var_s / (_cnt - 1.0));
123 snprintf (buf, sizeof(buf), "%8.2f ms", elapsed / 1000.0);
124 _label_cur.set_text (buf);
125 snprintf (buf, sizeof(buf), "%8.2f ms", _min / 1000.0);
126 _label_min.set_text (buf);
127 snprintf (buf, sizeof(buf), "%8.2f ms", _max / 1000.0);
128 _label_max.set_text (buf);
129 snprintf (buf, sizeof(buf), "%8.3f ms", avg / 1000.0);
130 _label_avg.set_text (buf);
131 snprintf (buf, sizeof(buf), "%8.3f ms", stddev / 1000.0);
132 _label_dev.set_text (buf);
133 _label_acq.set_text (Timecode::timecode_format_sampletime (now - _start, 1000000, 100, false));
141 _last = _x_get_monotonic_usec ();
142 _last_display = _last;
147 _total = _var_m = _var_s = 0;
149 _label_cur.set_text ("-");
150 _label_min.set_text ("-");
151 _label_max.set_text ("-");
152 _label_avg.set_text ("-");
153 _label_dev.set_text ("-");
154 _label_acq.set_text ("-");
158 IdleOMeter::on_show ()
160 ArdourDialog::on_show ();
162 _idle_connection = Glib::signal_idle().connect (sigc::mem_fun (*this, &IdleOMeter::idle));
166 IdleOMeter::on_hide ()
168 _idle_connection.disconnect ();
169 ArdourDialog::on_hide ();