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livetrax/gtk2_ardour/plugin_dspload_ui.cc
Robin Gareus 4050ca5633
Update GPL boilerplate and (C)
Copyright-holder and year information is extracted from git log.

git history begins in 2005. So (C) from 1998..2005 is lost. Also some
(C) assignment of commits where the committer didn't use --author.
2019-08-03 15:53:15 +02:00

270 lines
8.5 KiB
C++

/*
* Copyright (C) 2018 Robin Gareus <robin@gareus.org>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
#include "gtkmm2ext/utils.h"
#include "ardour/session.h"
#include "plugin_dspload_ui.h"
#include "timers.h"
#include "pbd/i18n.h"
using namespace Gtkmm2ext;
using namespace Gtk;
PluginLoadStatsGui::PluginLoadStatsGui (boost::shared_ptr<ARDOUR::PluginInsert> insert)
: _insert (insert)
, _lbl_min ("", ALIGN_RIGHT, ALIGN_CENTER)
, _lbl_max ("", ALIGN_RIGHT, ALIGN_CENTER)
, _lbl_avg ("", ALIGN_RIGHT, ALIGN_CENTER)
, _lbl_dev ("", ALIGN_RIGHT, ALIGN_CENTER)
, _reset_button (_("Reset"))
, _valid (false)
{
_reset_button.set_name ("generic button");
_reset_button.signal_clicked.connect (sigc::mem_fun (*this, &PluginLoadStatsGui::clear_stats));
_darea.signal_expose_event ().connect (sigc::mem_fun (*this, &PluginLoadStatsGui::draw_bar));
set_size_request_to_display_given_text (_lbl_dev, string_compose (_("%1 [ms]"), 99.123), 0, 0);
_darea.set_size_request (360, 32); // TODO max (320, 360 * UIConfiguration::instance().get_ui_scale ())
attach (*manage (new Gtk::Label (_("Minimum"), ALIGN_RIGHT, ALIGN_CENTER)),
0, 1, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (*manage (new Gtk::Label (_("Maximum"), ALIGN_RIGHT, ALIGN_CENTER)),
0, 1, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (*manage (new Gtk::Label (_("Average"), ALIGN_RIGHT, ALIGN_CENTER)),
0, 1, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (*manage (new Gtk::Label (_("Std.Dev"), ALIGN_RIGHT, ALIGN_CENTER)),
0, 1, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (_lbl_min, 1, 2, 0, 1, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (_lbl_max, 1, 2, 1, 2, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (_lbl_avg, 1, 2, 2, 3, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (_lbl_dev, 1, 2, 3, 4, Gtk::FILL, Gtk::SHRINK, 2, 0);
attach (*manage (new Gtk::VSeparator ()),
2, 3, 0, 4, Gtk::FILL, Gtk::FILL, 4, 0);
attach (_darea, 3, 4, 0, 4, Gtk::FILL|Gtk::EXPAND, Gtk::FILL, 4, 4);
attach (_reset_button, 4, 5, 2, 4, Gtk::FILL, Gtk::SHRINK);
}
void
PluginLoadStatsGui::start_updating () {
update_cpu_label ();
update_cpu_label_connection = Timers::second_connect (sigc::mem_fun(*this, &PluginLoadStatsGui::update_cpu_label));
}
void
PluginLoadStatsGui::stop_updating () {
_valid = false;
update_cpu_label_connection.disconnect ();
}
void
PluginLoadStatsGui::update_cpu_label()
{
if (_insert->get_stats (_min, _max, _avg, _dev)) {
_valid = true;
_lbl_min.set_text (string_compose (_("%1 [ms]"), rint (_min / 10.) / 100.));
_lbl_max.set_text (string_compose (_("%1 [ms]"), rint (_max / 10.) / 100.));
_lbl_avg.set_text (string_compose (_("%1 [ms]"), rint (_avg) / 1000.));
_lbl_dev.set_text (string_compose (_("%1 [ms]"), rint (_dev) / 1000.));
_lbl_dev.set_text (string_compose (_("%1 [ms]"), rint (_dev) / 1000.));
} else {
_valid = false;
_lbl_min.set_text ("-");
_lbl_max.set_text ("-");
_lbl_avg.set_text ("-");
_lbl_dev.set_text ("-");
}
_darea.queue_draw ();
}
bool
PluginLoadStatsGui::draw_bar (GdkEventExpose* ev)
{
Gtk::Allocation a = _darea.get_allocation ();
const int width = a.get_width ();
const int height = a.get_height ();
cairo_t* cr = gdk_cairo_create (_darea.get_window ()->gobj ());
cairo_rectangle (cr, ev->area.x, ev->area.y, ev->area.width, ev->area.height);
cairo_clip (cr);
Gdk::Color const bg = get_style ()->get_bg (STATE_NORMAL);
Gdk::Color const fg = get_style ()->get_fg (STATE_NORMAL);
cairo_set_source_rgb (cr, bg.get_red_p (), bg.get_green_p (), bg.get_blue_p ());
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
int border = (height / 7) | 1;
int x0 = 2;
int y0 = border;
int x1 = width - 2;
int y1 = (height - 3 * border) & ~1;
const int w = x1 - x0;
const int h = y1 - y0;
const double cycle_ms = 1000. * _insert->session().get_block_size() / (double)_insert->session().nominal_sample_rate();
const double base_mult = std::max (1.0, cycle_ms / 2.0);
const double log_base = log1p (base_mult);
#if 0 // Linear
# define DEFLECT(T) ( (T) * w * 8. / (9. * cycle_ms) )
#else
# define DEFLECT(T) ( log1p((T) * base_mult / cycle_ms) * w * 8. / (9 * log_base) )
#endif
cairo_save (cr);
rounded_rectangle (cr, x0, y0, w, h, 7);
cairo_set_source_rgba (cr, .0, .0, .0, 1);
cairo_set_line_width (cr, 1);
cairo_stroke_preserve (cr);
if (_valid) {
cairo_pattern_t *pat = cairo_pattern_create_linear (x0, 0.0, w, 0.0);
cairo_pattern_add_color_stop_rgba (pat, 0, 0, 1, 0, .7);
cairo_pattern_add_color_stop_rgba (pat, 6. / 9., 0, 1, 0, .7);
cairo_pattern_add_color_stop_rgba (pat, 6.5 / 9., .8, .8, 0, .7);
cairo_pattern_add_color_stop_rgba (pat, 7.5 / 9., .8, .8, 0, .7);
cairo_pattern_add_color_stop_rgba (pat, 8. / 9., 1, 0, 0, .7);
cairo_set_source (cr, pat);
cairo_pattern_destroy (pat);
cairo_fill_preserve (cr);
} else {
cairo_set_source_rgba (cr, .4, .3, .1, .5);
cairo_fill_preserve (cr);
}
cairo_clip (cr);
if (_valid) {
double xmin = DEFLECT(_min / 1000.);
double xmax = DEFLECT(_max / 1000.);
rounded_rectangle (cr, x0 + xmin, y0, xmax - xmin, h, 7);
cairo_set_source_rgba (cr, .8, .8, .9, .5);
cairo_fill (cr);
}
cairo_restore (cr);
Glib::RefPtr<Pango::Layout> layout;
layout = Pango::Layout::create (get_pango_context ());
cairo_set_line_width (cr, 1);
for (int i = 1; i < 9; ++i) {
int text_width, text_height;
#if 0 // Linear
double v = cycle_ms * i / 8.;
#else
double v = (exp (i * log_base / 8) - 1) * cycle_ms / base_mult;
#endif
double decimal = v > 10 ? 10 : 100;
layout->set_text (string_compose ("%1", rint (decimal * v) / decimal));
layout->get_pixel_size (text_width, text_height);
const int dx = w * i / 9.; // == DEFLECT (v)
cairo_move_to (cr, x0 + dx - .5, y0);
cairo_line_to (cr, x0 + dx - .5, y1);
cairo_set_source_rgba (cr, 1., 1., 1., 1.);
cairo_stroke (cr);
cairo_move_to (cr, x0 + dx - .5 * text_width, y1 + 1);
cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
pango_cairo_show_layout (cr, layout->gobj ());
}
{
int text_width, text_height;
layout->set_text ("0");
cairo_move_to (cr, x0 + 1, y1 + 1);
cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
pango_cairo_show_layout (cr, layout->gobj ());
layout->set_text (_("[ms]"));
layout->get_pixel_size (text_width, text_height);
cairo_move_to (cr, x0 + w - text_width - 1, y1 + 1);
pango_cairo_show_layout (cr, layout->gobj ());
}
if (_valid) {
double xavg = round (DEFLECT(_avg / 1000.));
double xd0 = DEFLECT((_avg - _dev) / 1000.);
double xd1 = DEFLECT((_avg + _dev) / 1000.);
cairo_move_to (cr, x0 + xavg - .5, y0 - 1);
cairo_rel_line_to (cr, -5, -5);
cairo_rel_line_to (cr, 10, 0);
cairo_close_path (cr);
cairo_set_source_rgb (cr, fg.get_red_p (), fg.get_green_p (), fg.get_blue_p ());
cairo_fill (cr);
cairo_save (cr);
rounded_rectangle (cr, x0, y0, w, h, 7);
cairo_clip (cr);
const double dashes[] = { 1, 2 };
cairo_set_dash (cr, dashes, 2, 0);
cairo_set_line_cap (cr, CAIRO_LINE_CAP_ROUND);
cairo_set_line_width (cr, 1);
cairo_move_to (cr, x0 + xavg - .5, y0 - .5);
cairo_line_to (cr, x0 + xavg - .5, y1 + .5);
cairo_set_source_rgba (cr, .0, .0, .0, 1.);
cairo_stroke (cr);
cairo_set_dash (cr, 0, 0, 0);
if (xd1 - xd0 > 2) {
cairo_set_line_cap (cr, CAIRO_LINE_CAP_BUTT);
const double ym = .5 + floor ((double)(y0 + h / 2));
const int h4 = h / 4;
cairo_set_line_width (cr, 1);
cairo_set_source_rgba (cr, 0, 0, 0, 1.);
cairo_move_to (cr, floor (x0 + xd0), ym);
cairo_line_to (cr, ceil (x0 + xd1), ym);
cairo_stroke (cr);
cairo_move_to (cr, floor (x0 + xd0) - .5, ym - h4);
cairo_line_to (cr, floor (x0 + xd0) - .5, ym + h4);
cairo_stroke (cr);
cairo_move_to (cr, ceil (x0 + xd1) - .5, ym - h4);
cairo_line_to (cr, ceil (x0 + xd1) - .5, ym + h4);
cairo_stroke (cr);
}
cairo_restore (cr);
}
#undef DEFLECT
cairo_destroy (cr);
return true;
}