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livetrax/gtk2_ardour/meter_patterns.cc
Robin Gareus 7447843a33 oversample meter faceplate image surfaces 
Works around issues with pango on windows,
fixes crude text on OSX/retina and can provide sub-pixel
rendering on GNU/Linux/X11.
2015-05-05 03:02:09 +02:00

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/*
Copyright (C) 2013 Paul Davis
Author: Robin Gareus
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., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#include <gtkmm2ext/cairo_widget.h>
#include <gtkmm2ext/gtk_ui.h>
#include <gtkmm2ext/utils.h>
#include <gtkmm2ext/rgb_macros.h>
#include <ardour/rc_configuration.h>
#include "ardour_ui.h"
#include "utils.h"
#include "logmeter.h"
#include "meter_patterns.h"
#include "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");
break;
case MeterPeak0dB:
return _("Peak 0dB");
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");
break;
case MeterK14:
return _("K14");
break;
case MeterK12:
return _("K12");
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:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->color ("meterstrip vu bg"), r, g, b, a);
break;
case MeterIEC1DIN:
case MeterIEC1NOR:
case MeterIEC2BBC:
case MeterIEC2EBU:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->color ("meterstrip ppm bg"), r, g, b, a);
break;
case MeterK12:
case MeterK14:
case MeterK20:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->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:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->color ("meterstrip vu fg"), r, g, b, a);
break;
case MeterIEC1DIN:
case MeterIEC1NOR:
case MeterIEC2BBC:
case MeterIEC2EBU:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->color ("meterstrip ppm fg"), r, g, b, a);
break;
default:
ArdourCanvas::color_to_rgba (ARDOUR_UI::config()->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 * ARDOUR_UI::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 = ARDOUR_UI::config()->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));
// no break
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 (ARDOUR_UI::config()->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 (ARDOUR_UI::config()->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(ARDOUR_UI::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 = ARDOUR_UI::config()->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;
default:
case MeterPeak:
case MeterKrms:
points.insert (std::pair<float,string>( 3.0f, "+3"));
// no break
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 (ARDOUR_UI::config()->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"));
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;
}
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();
}
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