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livetrax/gtk2_ardour/meter_patterns.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

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/*
* Copyright (C) 2013-2019 Robin Gareus <robin@gareus.org>
* Copyright (C) 2014-2016 Paul Davis <paul@linuxaudiosystems.com>
* Copyright (C) 2015 Tim Mayberry <mojofunk@gmail.com>
*
* 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 <gtkmm/drawingarea.h>
#include <gtkmm2ext/cairo_widget.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/rgb_macros.h>
#include "ardour/logmeter.h"
#include <ardour/rc_configuration.h>
#include "utils.h"
#include "meter_patterns.h"
#include "ui_config.h"
#include "pbd/i18n.h"
using namespace ARDOUR;
using namespace ARDOUR_UI_UTILS;
using namespace PBD;
using namespace Gtk;
using namespace Gtkmm2ext;
using namespace std;
using namespace ArdourMeter;
static const int max_pattern_metric_size = 1026;
/* signals used by meters */
sigc::signal<void> ArdourMeter::ResetAllPeakDisplays;
sigc::signal<void,ARDOUR::Route*> ArdourMeter::ResetRoutePeakDisplays;
sigc::signal<void,ARDOUR::RouteGroup*> ArdourMeter::ResetGroupPeakDisplays;
sigc::signal<void> ArdourMeter::RedrawMetrics;
sigc::signal<void, int, ARDOUR::RouteGroup*, ARDOUR::MeterType> ArdourMeter::SetMeterTypeMulti;
/* pattern cache */
struct MeterMatricsMapKey {
MeterMatricsMapKey (std::string n, MeterType t, int dt)
: _n(n)
, _t(t)
, _dt(dt)
{}
inline bool operator<(const MeterMatricsMapKey& rhs) const {
return (_n < rhs._n) || (_n == rhs._n && _t < rhs._t) || (_n == rhs._n && _t == rhs._t && _dt < rhs._dt);
}
std::string _n;
MeterType _t;
int _dt;
};
namespace ArdourMeter {
typedef std::map<MeterMatricsMapKey, cairo_pattern_t*> MetricPatternMap;
}
static ArdourMeter::MetricPatternMap ticks_patterns;
static ArdourMeter::MetricPatternMap metric_patterns;
const std::string
ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
{
switch (mt) {
case MeterPeak:
return _("Peak (+6dBFS)");
break;
case MeterPeak0dB:
return _("Peak (0dBFS)");
break;
case MeterKrms:
return _("RMS + Peak");
break;
case MeterIEC1DIN:
return _("IEC1/DIN");
break;
case MeterIEC1NOR:
return _("IEC1/Nordic");
break;
case MeterIEC2BBC:
return _("IEC2/BBC");
break;
case MeterIEC2EBU:
return _("IEC2/EBU");
break;
case MeterK20:
return _("K20/RMS");
break;
case MeterK14:
return _("K14/RMS");
break;
case MeterK12:
return _("K12/RMS");
break;
case MeterVU:
return _("VU");
break;
default:
assert(0);
return _("???");
break;
}
}
static inline int types_to_bit (vector<ARDOUR::DataType> types) {
int rv = 0;
for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
rv |= 1 << (*i);
}
return rv;
}
static inline float mtr_col_and_fract(
cairo_t* cr, Gdk::Color const * const c, const uint32_t peakcolor, const MeterType mt, const float val)
{
float fraction = 0;
switch (mt) {
default:
case MeterKrms:
case MeterPeak:
fraction = log_meter (val);
if (val >= 0 || val == -9) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterPeak0dB:
fraction = log_meter0dB (val);
if (val >= 0 || val == -9) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterIEC2BBC:
case MeterIEC2EBU:
fraction = meter_deflect_ppm(val);
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
break;
case MeterIEC1NOR:
fraction = meter_deflect_nordic(val);
#if 0
if (val == -18.0) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
#else
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
#endif
break;
case MeterIEC1DIN:
fraction = meter_deflect_din(val);
if (val == -9.0 || val == -15 || val == -18) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterVU:
fraction = meter_deflect_vu(val);
if (val >= -20.0) {
cairo_set_source_rgb (cr,
UINT_RGBA_R_FLT(peakcolor),
UINT_RGBA_G_FLT(peakcolor),
UINT_RGBA_B_FLT(peakcolor));
} else {
cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
}
break;
case MeterK20:
fraction = meter_deflect_k (val, 20);
if (val >= -16.0) {
cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
} else if (val >= -20.0) {
cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
} else {
cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
}
break;
case MeterK14:
if (val >= -10.0) {
cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
} else if (val >= -14.0) {
cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
} else {
cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
}
fraction = meter_deflect_k (val, 14);
break;
case MeterK12:
if (val >= -8.0) {
cairo_set_source_rgb (cr, 1.0, 0.0, 0.0); // red
} else if (val >= -12.0) {
cairo_set_source_rgb (cr, 0.8, 0.8, 0.0); // yellow
} else {
cairo_set_source_rgb (cr, 0.0, 1.0, 0.0); // green
}
fraction = meter_deflect_k (val, 12);
break;
}
return fraction;
}
static void mtr_red_stripe(cairo_t* cr, float l, float w, int h, float top, float bot) {
if (w <= 0) return;
int t = h - floorf (h * (top));
int b = h - floorf (h * (bot));
cairo_set_source_rgba (cr, .75, 0, 0, 0.75);
cairo_rectangle (cr, l, t + .5, w, b - t);
cairo_fill (cr);
}
static void set_bg_color (Gtk::Widget& w, cairo_t* cr, MeterType type) {
double r,g,b,a;
switch(type) {
case MeterVU:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip vu bg"), r, g, b, a);
break;
case MeterIEC1DIN:
case MeterIEC1NOR:
case MeterIEC2BBC:
case MeterIEC2EBU:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip ppm bg"), r, g, b, a);
break;
case MeterK12:
case MeterK14:
case MeterK20:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip dpm bg"), r, g, b, a);
break;
default:
{
Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_ACTIVE);
r = c.get_red_p();
g = c.get_green_p();
b = c.get_blue_p();
}
break;
}
cairo_set_source_rgb (cr, r, g, b);
}
static void set_fg_color(Gtk::Widget&, MeterType type, Gdk::Color * c) {
double r,g,b,a;
switch(type) {
case MeterVU:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip vu fg"), r, g, b, a);
break;
case MeterIEC1DIN:
case MeterIEC1NOR:
case MeterIEC2BBC:
case MeterIEC2EBU:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip ppm fg"), r, g, b, a);
break;
default:
Gtkmm2ext::color_to_rgba (UIConfiguration::instance().color ("meterstrip dpm fg"), r, g, b, a);
break;
}
c->set_rgb_p (r, g, b);
}
static cairo_pattern_t*
meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> types)
{
Glib::RefPtr<Gdk::Window> win (w.get_window());
bool background;
bool tickleft, tickright;
gint width, height;
win->get_size (width, height);
tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
tickright = w.get_name().substr(w.get_name().length() - 5) == "Right";
background = types.size() == 0 || tickleft || tickright;
float box_l=0;
float box_w=0;
#define PX_SCALE(pxmin, dflt) rint(std::max((double)pxmin, (double)dflt * UIConfiguration::instance().get_ui_scale()))
if (tickleft) {
if (w.get_name().substr(0, 3) == "Bar") {
box_w = PX_SCALE(2, 2);
box_l = width - box_w;
} else if (w.get_name().substr(0, 4) == "Mark") {
box_w = PX_SCALE(2, 2);
box_l = width - box_w;
background = false;
}
} else if (tickright) {
if (w.get_name().substr(0, 3) == "Bar") {
box_l = 0; box_w = PX_SCALE(2, 2);
} else if (w.get_name().substr(0, 4) == "Mark") {
box_l = 0; box_w = PX_SCALE(2, 2);
background = false;
}
} else {
box_l = 0; box_w = width;
}
#undef PX_SCALE
cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
cairo_t* cr = cairo_create (surface);
cairo_move_to (cr, 0, 0);
cairo_rectangle (cr, 0, 0, width, height);
if (background) {
/* meterbridge */
set_bg_color(w, cr, type);
} else {
/* mixer */
Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
cairo_fill (cr);
height = min(max_pattern_metric_size, height);
uint32_t peakcolor = UIConfiguration::instance().color ("meterbridge peaklabel");
for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
Gdk::Color c;
if (types.size() > 1 && (*i) == DataType::MIDI) {
/* we're overlaying more than 1 set of marks, so use different colours */
c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
} else if (background) {
set_fg_color(w, type, &c);
} else {
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
}
// tick-maker position in dBFS, line-thickness
std::map<float,float> points;
switch (*i) {
case DataType::AUDIO:
switch (type) {
case MeterK12:
points.insert (std::pair<float,float>(-52.0f, 1.0));
points.insert (std::pair<float,float>(-42.0f, 1.0));
points.insert (std::pair<float,float>(-32.0f, 1.0));
points.insert (std::pair<float,float>(-22.0f, 1.0));
points.insert (std::pair<float,float>(-18.0f, 1.0));
points.insert (std::pair<float,float>(-15.0f, 1.0));
points.insert (std::pair<float,float>(-12.0f, 1.0));
points.insert (std::pair<float,float>( -9.0f, 1.0));
points.insert (std::pair<float,float>( -8.0f, 0.8));
points.insert (std::pair<float,float>( -6.0f, 1.0));
points.insert (std::pair<float,float>( -3.0f, 1.0));
points.insert (std::pair<float,float>( 0.0f, 1.0));
break;
case MeterK14:
points.insert (std::pair<float,float>(-54.0f, 1.0));
points.insert (std::pair<float,float>(-44.0f, 1.0));
points.insert (std::pair<float,float>(-34.0f, 1.0));
points.insert (std::pair<float,float>(-24.0f, 1.0));
points.insert (std::pair<float,float>(-20.0f, 1.0));
points.insert (std::pair<float,float>(-17.0f, 1.0));
points.insert (std::pair<float,float>(-14.0f, 1.0)); // 0
points.insert (std::pair<float,float>(-11.0f, 1.0)); // +3
points.insert (std::pair<float,float>(-10.0f, 0.8)); // +4
points.insert (std::pair<float,float>( -8.0f, 1.0)); // +6
points.insert (std::pair<float,float>( -4.0f, 1.0)); // +10
points.insert (std::pair<float,float>( 0.0f, 1.0));
break;
case MeterK20:
points.insert (std::pair<float,float>(-60.0f, 1.0));
points.insert (std::pair<float,float>(-50.0f, 1.0));
points.insert (std::pair<float,float>(-40.0f, 1.0));
points.insert (std::pair<float,float>(-30.0f, 1.0));
points.insert (std::pair<float,float>(-26.0f, 1.0));
points.insert (std::pair<float,float>(-23.0f, 1.0));
points.insert (std::pair<float,float>(-20.0f, 1.0)); // 0
points.insert (std::pair<float,float>(-17.0f, 1.0));
points.insert (std::pair<float,float>(-16.0f, 0.8));
points.insert (std::pair<float,float>(-14.0f, 1.0)); // +6
points.insert (std::pair<float,float>(-10.0f, 1.0));
points.insert (std::pair<float,float>( -5.0f, 1.0));
points.insert (std::pair<float,float>( 0.0f, 1.0)); //+20
break;
case MeterIEC2EBU:
points.insert (std::pair<float,float>(-30.0f, 1.0));
points.insert (std::pair<float,float>(-28.0f, 0.5));
points.insert (std::pair<float,float>(-26.0f, 1.0));
points.insert (std::pair<float,float>(-24.0f, 0.5));
points.insert (std::pair<float,float>(-22.0f, 1.0));
points.insert (std::pair<float,float>(-20.0f, 0.5));
points.insert (std::pair<float,float>(-18.0f, 1.0));
points.insert (std::pair<float,float>(-16.0f, 0.5));
points.insert (std::pair<float,float>(-14.0f, 1.0));
points.insert (std::pair<float,float>(-12.0f, 0.5));
points.insert (std::pair<float,float>(-10.0f, 1.0));
points.insert (std::pair<float,float>( -9.0f, 0.8));
points.insert (std::pair<float,float>( -8.0f, 0.5));
points.insert (std::pair<float,float>( -6.0f, 1.0));
break;
case MeterIEC2BBC:
points.insert (std::pair<float,float>(-30.0f, 1.0));
points.insert (std::pair<float,float>(-26.0f, 1.0));
points.insert (std::pair<float,float>(-22.0f, 1.0));
points.insert (std::pair<float,float>(-18.0f, 1.0));
points.insert (std::pair<float,float>(-14.0f, 1.0));
points.insert (std::pair<float,float>(-10.0f, 1.0));
points.insert (std::pair<float,float>( -6.0f, 1.0));
break;
case MeterIEC1NOR:
points.insert (std::pair<float,float>(-60.0f, 1.0)); // -42
points.insert (std::pair<float,float>(-57.0f, 0.5));
points.insert (std::pair<float,float>(-54.0f, 1.0));
points.insert (std::pair<float,float>(-51.0f, 0.5));
points.insert (std::pair<float,float>(-48.0f, 1.0));
points.insert (std::pair<float,float>(-45.0f, 0.5));
points.insert (std::pair<float,float>(-42.0f, 1.0));
points.insert (std::pair<float,float>(-39.0f, 0.5));
points.insert (std::pair<float,float>(-36.0f, 1.0));
points.insert (std::pair<float,float>(-33.0f, 0.5));
points.insert (std::pair<float,float>(-30.0f, 1.0));
points.insert (std::pair<float,float>(-27.0f, 0.5));
points.insert (std::pair<float,float>(-24.0f, 1.0));
points.insert (std::pair<float,float>(-21.0f, 0.5));
points.insert (std::pair<float,float>(-18.0f, 1.0));
points.insert (std::pair<float,float>(-15.0f, 0.5));
points.insert (std::pair<float,float>(-12.0f, 1.0));
points.insert (std::pair<float,float>( -9.0f, 1.0));
points.insert (std::pair<float,float>( -6.0f, 0.5));
mtr_red_stripe(cr, box_l, box_w, height,
meter_deflect_nordic(-6.0f), meter_deflect_nordic(-12.0f));
break;
case MeterIEC1DIN:
points.insert (std::pair<float,float>( -3.0f, 0.5)); // "200%"
points.insert (std::pair<float,float>( -4.0f, 1.0));
points.insert (std::pair<float,float>( -5.0f, 0.5));
points.insert (std::pair<float,float>( -6.0f, 0.5));
points.insert (std::pair<float,float>( -7.0f, 0.5));
points.insert (std::pair<float,float>( -8.0f, 0.5));
points.insert (std::pair<float,float>( -9.0f, 1.0)); // "100%"
points.insert (std::pair<float,float>(-10.0f, 0.5));
points.insert (std::pair<float,float>(-11.0f, 0.5));
points.insert (std::pair<float,float>(-12.0f, 0.5));
points.insert (std::pair<float,float>(-13.0f, 0.5));
points.insert (std::pair<float,float>(-14.0f, 1.0));
points.insert (std::pair<float,float>(-15.0f, 0.8)); // "50%"
points.insert (std::pair<float,float>(-18.0f, 0.8)); // "-9"
points.insert (std::pair<float,float>(-19.0f, 1.0));
points.insert (std::pair<float,float>(-24.0f, 0.5));
points.insert (std::pair<float,float>(-29.0f, 1.0)); // "-20", "10%"
points.insert (std::pair<float,float>(-34.0f, 0.5)); // -25
//points.insert (std::pair<float,float>(-35.0f, 0.5)); // "5%" " -20"
points.insert (std::pair<float,float>(-39.0f, 1.0));
points.insert (std::pair<float,float>(-49.0f, 1.0));
points.insert (std::pair<float,float>(-54.0f, 0.5));
points.insert (std::pair<float,float>(-59.0f, 1.0));
mtr_red_stripe(cr, box_l, box_w, height,
meter_deflect_din(0.0f), meter_deflect_din(-9.0f));
break;
case MeterVU:
points.insert (std::pair<float,float>(-17.0f, 1.0)); //+3 VU
points.insert (std::pair<float,float>(-18.0f, 1.0));
points.insert (std::pair<float,float>(-19.0f, 1.0));
points.insert (std::pair<float,float>(-19.5f, 0.5));
points.insert (std::pair<float,float>(-20.0f, 1.0)); // 0 VU
points.insert (std::pair<float,float>(-20.5f, 0.5));
points.insert (std::pair<float,float>(-21.0f, 1.0));
points.insert (std::pair<float,float>(-22.0f, 1.0));
points.insert (std::pair<float,float>(-23.0f, 1.0)); //-3 VU
points.insert (std::pair<float,float>(-24.0f, 0.5));
points.insert (std::pair<float,float>(-25.0f, 1.0));
points.insert (std::pair<float,float>(-26.0f, 0.5));
points.insert (std::pair<float,float>(-27.0f, 1.0)); //-7 VU
points.insert (std::pair<float,float>(-30.0f, 1.0));
points.insert (std::pair<float,float>(-35.0f, 0.5));
points.insert (std::pair<float,float>(-40.0f, 1.0));
mtr_red_stripe(cr, box_l, box_w, height,
meter_deflect_vu(-17.0f), meter_deflect_vu(-20.0f));
break;
default:
points.insert (std::pair<float,float>( 0, 1.0));
points.insert (std::pair<float,float>( 1, 0.5));
points.insert (std::pair<float,float>( 2, 0.5));
points.insert (std::pair<float,float>( 3, 1.0));
points.insert (std::pair<float,float>( 4, 0.5));
points.insert (std::pair<float,float>( 5, 0.5));
/* fall through */
case MeterPeak0dB:
points.insert (std::pair<float,float>(-60, 0.5));
points.insert (std::pair<float,float>(-50, 1.0));
points.insert (std::pair<float,float>(-40, 1.0));
points.insert (std::pair<float,float>(-30, 1.0));
if (UIConfiguration::instance().get_meter_line_up_level() == MeteringLineUp24) {
points.insert (std::pair<float,float>(-24, 1.0));
} else {
points.insert (std::pair<float,float>(-25, 1.0));
}
points.insert (std::pair<float,float>(-20, 1.0));
points.insert (std::pair<float,float>(-19, 0.5));
points.insert (std::pair<float,float>(-18, 1.0));
points.insert (std::pair<float,float>(-17, 0.5));
points.insert (std::pair<float,float>(-16, 0.5));
points.insert (std::pair<float,float>(-15, 1.0));
points.insert (std::pair<float,float>(-14, 0.5));
points.insert (std::pair<float,float>(-13, 0.5));
points.insert (std::pair<float,float>(-12, 0.5));
points.insert (std::pair<float,float>(-11, 0.5));
points.insert (std::pair<float,float>(-10, 1.0));
points.insert (std::pair<float,float>( -9, 1.0));
points.insert (std::pair<float,float>( -8, 0.5));
points.insert (std::pair<float,float>( -7, 0.5));
points.insert (std::pair<float,float>( -6, 0.5));
points.insert (std::pair<float,float>( -5, 1.0));
points.insert (std::pair<float,float>( -4, 0.5));
points.insert (std::pair<float,float>( -3, 1.0));
points.insert (std::pair<float,float>( -2, 0.5));
points.insert (std::pair<float,float>( -1, 0.5));
break;
}
break;
case DataType::MIDI:
points.insert (std::pair<float,float>( 0, 1.0));
points.insert (std::pair<float,float>( 16, 0.5));
points.insert (std::pair<float,float>( 32, 0.5));
points.insert (std::pair<float,float>( 48, 0.5));
points.insert (std::pair<float,float>( 64, 1.0));
points.insert (std::pair<float,float>( 80, 0.5));
points.insert (std::pair<float,float>( 96, 0.5));
points.insert (std::pair<float,float>(100, 1.0));
points.insert (std::pair<float,float>(112, 0.5));
points.insert (std::pair<float,float>(127, 1.0));
break;
}
for (std::map<float,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
cairo_set_line_width (cr, (j->second));
float fraction = 0;
gint pos;
switch (*i) {
case DataType::AUDIO:
fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
pos = height - (gint) floor (height * fraction);
pos = max (pos, 1);
cairo_move_to(cr, 0, pos + .5);
cairo_line_to(cr, width, pos + .5);
cairo_stroke (cr);
break;
case DataType::MIDI:
fraction = (j->first) / 127.0;
pos = 1 + height - (gint) floor (height * fraction);
pos = min (pos, height);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
cairo_arc(cr, width * .5, pos + .5, 1.0, 0, 2 * M_PI);
cairo_fill(cr);
break;
}
}
}
cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return pattern;
}
static cairo_pattern_t*
meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
{
Glib::RefPtr<Gdk::Window> win (w.get_window());
bool tickleft, tickright;
bool background;
int overlay_midi = 1;
gint width, height;
win->get_size (width, height);
tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
tickright = w.get_name().substr(w.get_name().length() - 5) == "Right";
background = types.size() == 0 || tickleft || tickright;
if (!tickleft && !tickright) {
tickright = true;
}
#ifdef NO_OVERSAMPLE
cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
cairo_t* cr = cairo_create (surface);
#else
cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width*2, height*2);
cairo_t* cr = cairo_create (surface);
cairo_scale(cr, 2.0, 2.0);
#endif
Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
Pango::AttrList audio_font_attributes;
Pango::AttrList midi_font_attributes;
Pango::AttrList unit_font_attributes;
Pango::AttrFontDesc* font_attr;
Pango::FontDescription font;
font = Pango::FontDescription (UIConfiguration::instance().get_SmallMonospaceFont());
#ifdef __APPLE__
const double fixfontsize = 1.0;
#else
// counter-act global font-scaling.
const double fixfontsize = std::min(1.0, 0.9 / sqrtf(UIConfiguration::instance().get_ui_scale()));
#endif
font.set_weight (Pango::WEIGHT_NORMAL);
font.set_size (8.0 * fixfontsize * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
audio_font_attributes.change (*font_attr);
delete font_attr;
font.set_weight (Pango::WEIGHT_ULTRALIGHT);
font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
font.set_size (7.0 * fixfontsize * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
midi_font_attributes.change (*font_attr);
delete font_attr;
font.set_size (6.0 * fixfontsize * PANGO_SCALE);
font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
unit_font_attributes.change (*font_attr);
delete font_attr;
cairo_move_to (cr, 0, 0);
cairo_rectangle (cr, 0, 0, width, height);
if (background) {
/* meterbridge */
set_bg_color(w, cr, type);
} else {
/* mixer */
Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_NORMAL);
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
cairo_fill (cr);
cairo_set_line_width (cr, 1.0);
height = min(max_pattern_metric_size, height);
uint32_t peakcolor = UIConfiguration::instance().color ("meterbridge peaklabel");
Gdk::Color c; // default text color
for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
if (types.size() > 1 && (*i) == DataType::MIDI && overlay_midi == 0) {
continue;
}
if (types.size() > 1 && (*i) == DataType::MIDI) {
/* we're overlaying more than 1 set of marks, so use different colours */
c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
} else if (background) {
set_fg_color(w, type, &c);
} else {
c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
}
std::map<float,string> points; // map: label-pos in dBFS, label-text
switch (*i) {
case DataType::AUDIO:
layout->set_attributes (audio_font_attributes);
if (type == MeterPeak0dB) {
overlay_midi = 4;
}
switch (type) {
case MeterK12:
overlay_midi = 0;
points.insert (std::pair<float,string>(-52.0f, "-40"));
points.insert (std::pair<float,string>(-42.0f, "-30"));
points.insert (std::pair<float,string>(-32.0f, "-20"));
points.insert (std::pair<float,string>(-22.0f, "-10"));
points.insert (std::pair<float,string>(-18.0f, "-6"));
points.insert (std::pair<float,string>(-15.0f, "-3"));
points.insert (std::pair<float,string>(-12.0f, " 0"));
points.insert (std::pair<float,string>( -9.0f, "+3"));
points.insert (std::pair<float,string>( -6.0f, "+6"));
points.insert (std::pair<float,string>( -3.0f, "+9"));
points.insert (std::pair<float,string>( 0.0f, "+12"));
break;
case MeterK14:
overlay_midi = 0;
points.insert (std::pair<float,string>(-54.0f, "-40"));
points.insert (std::pair<float,string>(-44.0f, "-30"));
points.insert (std::pair<float,string>(-34.0f, "-20"));
points.insert (std::pair<float,string>(-24.0f, "-10"));
points.insert (std::pair<float,string>(-20.0f, "-6"));
points.insert (std::pair<float,string>(-17.0f, "-3"));
points.insert (std::pair<float,string>(-14.0f, " 0"));
points.insert (std::pair<float,string>(-11.0f, "+3"));
points.insert (std::pair<float,string>( -8.0f, "+6"));
points.insert (std::pair<float,string>( -4.0f, "+10"));
points.insert (std::pair<float,string>( 0.0f, "+14"));
break;
case MeterK20:
overlay_midi = 0;
points.insert (std::pair<float,string>(-60.0f, "-40"));
points.insert (std::pair<float,string>(-50.0f, "-30"));
points.insert (std::pair<float,string>(-40.0f, "-20"));
points.insert (std::pair<float,string>(-30.0f, "-10"));
points.insert (std::pair<float,string>(-26.0f, "-6"));
points.insert (std::pair<float,string>(-23.0f, "-3"));
points.insert (std::pair<float,string>(-20.0f, " 0"));
points.insert (std::pair<float,string>(-17.0f, "+3"));
points.insert (std::pair<float,string>(-14.0f, "+6"));
points.insert (std::pair<float,string>(-10.0f, "+10"));
points.insert (std::pair<float,string>( -5.0f, "+15"));
points.insert (std::pair<float,string>( 0.0f, "+20"));
break;
case MeterPeak:
/* fall through */
case MeterKrms:
/* fall through */
default:
points.insert (std::pair<float,string>( 3.0f, "+3"));
/* fall through */
case MeterPeak0dB:
points.insert (std::pair<float,string>(-50.0f, "-50"));
points.insert (std::pair<float,string>(-40.0f, "-40"));
points.insert (std::pair<float,string>(-30.0f, "-30"));
points.insert (std::pair<float,string>(-20.0f, "-20"));
if (types.size() == 1) {
if (UIConfiguration::instance().get_meter_line_up_level() == MeteringLineUp24) {
points.insert (std::pair<float,string>(-24.0f, "-24"));
} else {
points.insert (std::pair<float,string>(-25.0f, "-25"));
}
points.insert (std::pair<float,string>(-15.0f, "-15"));
}
points.insert (std::pair<float,string>(-18.0f, "-18"));
points.insert (std::pair<float,string>(-10.0f, "-10"));
points.insert (std::pair<float,string>( -5.0f, "-5"));
points.insert (std::pair<float,string>( -3.0f, "-3"));
points.insert (std::pair<float,string>( 0.0f, "+0"));
break;
case MeterIEC2EBU:
overlay_midi = 3;
points.insert (std::pair<float,string>(-30.0f, "-12"));
points.insert (std::pair<float,string>(-26.0f, "-8"));
points.insert (std::pair<float,string>(-22.0f, "-4"));
points.insert (std::pair<float,string>(-18.0f, "TST"));
points.insert (std::pair<float,string>(-14.0f, "+4"));
points.insert (std::pair<float,string>(-10.0f, "+8"));
points.insert (std::pair<float,string>( -6.0f, "+12"));
break;
case MeterIEC2BBC:
overlay_midi = 3;
points.insert (std::pair<float,string>(-30.0f, " 1 "));
points.insert (std::pair<float,string>(-26.0f, " 2 "));
points.insert (std::pair<float,string>(-22.0f, " 3 "));
points.insert (std::pair<float,string>(-18.0f, " 4 "));
points.insert (std::pair<float,string>(-14.0f, " 5 "));
points.insert (std::pair<float,string>(-10.0f, " 6 "));
points.insert (std::pair<float,string>( -6.0f, " 7 "));
break;
case MeterIEC1NOR:
overlay_midi = 0;
//points.insert (std::pair<float,string>(-60.0f, "-42"));
points.insert (std::pair<float,string>(-54.0f, "-36"));
points.insert (std::pair<float,string>(-48.0f, "-30"));
points.insert (std::pair<float,string>(-42.0f, "-24"));
points.insert (std::pair<float,string>(-36.0f, "-18"));
//points.insert (std::pair<float,string>(-33.0f, "-15"));
points.insert (std::pair<float,string>(-30.0f, "-12"));
//points.insert (std::pair<float,string>(-27.0f, "-9"));
points.insert (std::pair<float,string>(-24.0f, "-6"));
//points.insert (std::pair<float,string>(-21.0f, "-3"));
points.insert (std::pair<float,string>(-18.0f, "TST"));
//points.insert (std::pair<float,string>(-15.0f, "+3"));
points.insert (std::pair<float,string>(-12.0f, "+6"));
points.insert (std::pair<float,string>( -9.0f, "+9"));
//points.insert (std::pair<float,string>( -6.0f, "+12"));
break;
case MeterIEC1DIN:
overlay_midi = 2;
//points.insert (std::pair<float,string>( -3.0f, "200%"));
points.insert (std::pair<float,string>( -4.0f, "+5"));
points.insert (std::pair<float,string>( -9.0f, "0")); // "100%";
points.insert (std::pair<float,string>(-14.0f, "-5"));
//points.insert (std::pair<float,string>(-15.0f, "50%"));
//points.insert (std::pair<float,string>(-18.0f, "-9"));
points.insert (std::pair<float,string>(-19.0f, "-10")); // "30%"
points.insert (std::pair<float,string>(-29.0f, "-20")); // "10%"
//points.insert (std::pair<float,string>(-35.0f, "5%")); // "5%"
points.insert (std::pair<float,string>(-39.0f, "-30"));
//points.insert (std::pair<float,string>(-49.0f, "1%"));
points.insert (std::pair<float,string>(-59.0f, "-50"));
break;
case MeterVU:
overlay_midi = 0;
points.insert (std::pair<float,string>(-17.0f, "+3"));
points.insert (std::pair<float,string>(-18.0f, "+2"));
points.insert (std::pair<float,string>(-19.0f, "+1"));
points.insert (std::pair<float,string>(-20.0f, " 0"));
points.insert (std::pair<float,string>(-21.0f, "-1"));
points.insert (std::pair<float,string>(-22.0f, "-2"));
points.insert (std::pair<float,string>(-23.0f, "-3"));
points.insert (std::pair<float,string>(-25.0f, "-5"));
points.insert (std::pair<float,string>(-27.0f, "-7"));
points.insert (std::pair<float,string>(-30.0f, "-10"));
points.insert (std::pair<float,string>(-40.0f, "-20"));
break;
}
break;
case DataType::MIDI:
layout->set_attributes (midi_font_attributes);
if (types.size() == 1) {
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 16, "16"));
points.insert (std::pair<float,string>( 32, "32"));
points.insert (std::pair<float,string>( 48, "48"));
points.insert (std::pair<float,string>( 64, "64"));
points.insert (std::pair<float,string>( 80, "80"));
points.insert (std::pair<float,string>( 96, "96"));
points.insert (std::pair<float,string>(100, "100"));
points.insert (std::pair<float,string>(112, "112"));
points.insert (std::pair<float,string>(127, "127"));
} else {
switch (overlay_midi) {
case 1:
/* labels that don't overlay with dBFS */
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 24, "24"));
points.insert (std::pair<float,string>( 48, "48"));
points.insert (std::pair<float,string>( 72, "72"));
points.insert (std::pair<float,string>(127, "127"));
break;
case 2:
/* labels that don't overlay with DIN */
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 16, "16"));
points.insert (std::pair<float,string>( 40, "40"));
points.insert (std::pair<float,string>( 64, "64"));
points.insert (std::pair<float,string>(112, "112"));
points.insert (std::pair<float,string>(127, "127"));
break;
case 3:
/* labels that don't overlay with BBC nor EBU*/
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 16, "16"));
points.insert (std::pair<float,string>( 56, "56"));
points.insert (std::pair<float,string>( 72, "72"));
points.insert (std::pair<float,string>(112, "112"));
points.insert (std::pair<float,string>(127, "127"));
break;
case 4:
/* labels that don't overlay with 0dBFS*/
points.insert (std::pair<float,string>( 0, "0"));
points.insert (std::pair<float,string>( 16, "16"));
points.insert (std::pair<float,string>( 48, "48"));
points.insert (std::pair<float,string>( 84, "84"));
points.insert (std::pair<float,string>(100, "100"));
default:
break;
}
}
break;
}
gint pos = -1;
for (std::map<float,string>::const_iterator j = points.begin(); j != points.end(); ++j) {
float fraction = 0;
bool align_center = background; // this is true for meterbridge meters w/ fixed background
switch (*i) {
case DataType::AUDIO:
fraction = mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
pos = height - (gint) floor (height * fraction);
pos = max (pos, 1);
if (tickleft) {
cairo_move_to(cr, width-1.5, pos + .5);
cairo_line_to(cr, width, pos + .5);
cairo_stroke (cr);
} else if (tickright) {
cairo_move_to(cr, 0, pos + .5);
cairo_line_to(cr, 1.5, pos + .5);
cairo_stroke (cr);
}
break;
case DataType::MIDI:
align_center = false; // don't bleed into legend
fraction = (j->first) / 127.0;
pos = 1 + height - (gint) lrintf (height * fraction);
pos = min (pos, height);
break;
}
if (pos < 0) continue;
layout->set_text(j->second.c_str());
int tw, th;
layout->get_pixel_size(tw, th);
int p = pos - (th / 2) - 1;
p = min (p, height - th);
p = max (p, 0);
if (align_center) {
cairo_move_to (cr, (width-tw)/2.0, p);
} else {
cairo_move_to (cr, width-3-tw, p);
}
cairo_set_line_width(cr, 0.12);
cairo_set_source_rgba (cr, 0.0, 0.0, 0.0, 1.0);
pango_cairo_layout_path(cr, layout->gobj());
cairo_stroke_preserve (cr);
cairo_set_line_width(cr, 1.0);
if ((*i) == DataType::AUDIO) {
mtr_col_and_fract(cr, &c, peakcolor, type, j->first);
} else {
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
}
pango_cairo_show_layout (cr, layout->gobj());
cairo_new_path(cr);
}
}
// add legend
if (types.size() == 1 || overlay_midi == 0) {
int tw, th;
layout->set_attributes (unit_font_attributes);
switch (types.at(0)) {
case DataType::AUDIO:
switch (type) {
case MeterK20:
layout->set_text("K20");
break;
case MeterK14:
layout->set_text("K14");
break;
case MeterK12:
layout->set_text("K12");
break;
default:
case MeterPeak:
case MeterPeak0dB:
case MeterKrms:
layout->set_text("dBFS");
break;
case MeterIEC2EBU:
layout->set_text("EBU");
break;
case MeterIEC2BBC:
layout->set_text("BBC");
break;
case MeterIEC1DIN:
layout->set_text("DIN");
break;
case MeterIEC1NOR:
layout->set_text("NOR");
break;
case MeterVU:
layout->set_text("VU");
break;
}
layout->get_pixel_size(tw, th);
break;
case DataType::MIDI:
layout->set_text("mid");
layout->get_pixel_size(tw, th);
break;
default: // DataType::NIL;
layout->set_text("");
tw = th = 0;
assert (0); // not reached
break;
}
if (!background) {
c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
}
cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
if (tickleft) {
cairo_move_to (cr, width - 2 - tw, height - th - 0.5);
} else {
cairo_move_to (cr, 2, height - th - 0.5);
}
pango_cairo_show_layout (cr, layout->gobj());
}
cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
cairo_destroy (cr);
cairo_surface_destroy (surface);
return pattern;
}
gint
ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
{
Glib::RefPtr<Gdk::Window> win (mta->get_window());
cairo_t* cr;
cr = gdk_cairo_create (win->gobj());
/* clip to expose area */
gdk_cairo_rectangle (cr, &ev->area);
cairo_clip (cr);
cairo_pattern_t* pattern;
const MeterMatricsMapKey key (mta->get_name(), type, types_to_bit(types));
MetricPatternMap::iterator i = ticks_patterns.find (key);
if (i == ticks_patterns.end()) {
pattern = meter_render_ticks (*mta, type, types);
ticks_patterns[key] = pattern;
} else {
pattern = i->second;
}
cairo_move_to (cr, 0, 0);
cairo_set_source (cr, pattern);
gint width, height;
win->get_size (width, height);
cairo_rectangle (cr, 0, 0, width, height);
cairo_fill (cr);
cairo_destroy (cr);
return true;
}
gint
ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, MeterType type, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
{
Glib::RefPtr<Gdk::Window> win (mma->get_window());
cairo_t* cr;
cr = gdk_cairo_create (win->gobj());
/* clip to expose area */
gdk_cairo_rectangle (cr, &ev->area);
cairo_clip (cr);
cairo_pattern_t* pattern;
const MeterMatricsMapKey key (mma->get_name(), type, types_to_bit(types));
MetricPatternMap::iterator i = metric_patterns.find (key);
if (i == metric_patterns.end()) {
pattern = meter_render_metrics (*mma, type, types);
metric_patterns[key] = pattern;
} else {
pattern = i->second;
}
cairo_move_to (cr, 0, 0);
gint width, height;
win->get_size (width, height);
#ifdef NO_OVERSAMPLE
cairo_set_source (cr, pattern);
cairo_rectangle (cr, 0, 0, width, height);
#else
cairo_scale(cr, 0.5, 0.5);
cairo_set_antialias(cr, CAIRO_ANTIALIAS_BEST);
cairo_set_source (cr, pattern);
cairo_rectangle (cr, 0, 0, width * 2., height * 2.);
#endif
cairo_fill (cr);
cairo_destroy (cr);
return true;
}
void
ArdourMeter::meter_clear_pattern_cache(int which) {
MetricPatternMap::iterator i = metric_patterns.begin();
MetricPatternMap::iterator j = ticks_patterns.begin();
while (i != metric_patterns.end()) {
int m = 4;
MeterMatricsMapKey const * const key = &(i->first);
std::string n = key->_n;
if (n.substr(n.length() - 4) == "Left") { m = 1; }
if (n.substr(n.length() - 5) == "Right") { m = 2; }
if (which & m) {
cairo_pattern_destroy(i->second);
metric_patterns.erase(i++);
} else {
++i;
}
}
while (j != ticks_patterns.end()) {
int m = 4;
MeterMatricsMapKey const * const key = &(j->first);
std::string n = key->_n;
if (n.substr(n.length() - 4) == "Left") { m = 1; }
if (n.substr(n.length() - 5) == "Right") { m = 2; }
if (which & m) {
cairo_pattern_destroy(j->second);
ticks_patterns.erase(j++);
} else {
++j;
}
}
RedrawMetrics(); /* EMIT SIGNAL */
}
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