2 Copyright (C) 2013 Paul Davis
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 2 of the License, or
8 (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., 675 Mass Ave, Cambridge, MA 02139, USA.
20 #include <gtkmm2ext/cairo_widget.h>
21 #include <gtkmm2ext/gtk_ui.h>
22 #include <gtkmm2ext/utils.h>
23 #include <gtkmm2ext/rgb_macros.h>
25 #include <ardour/rc_configuration.h>
26 #include "ardour_ui.h"
29 #include "meter_patterns.h"
33 using namespace ARDOUR;
36 using namespace Gtkmm2ext;
38 using namespace ArdourMeter;
40 static const int max_pattern_metric_size = 1026;
42 sigc::signal<void> ArdourMeter::ResetAllPeakDisplays;
43 sigc::signal<void,ARDOUR::Route*> ArdourMeter::ResetRoutePeakDisplays;
44 sigc::signal<void,ARDOUR::RouteGroup*> ArdourMeter::ResetGroupPeakDisplays;
45 sigc::signal<void> ArdourMeter::RedrawMetrics;
47 sigc::signal<void, int, ARDOUR::RouteGroup*, ARDOUR::MeterType> ArdourMeter::SetMeterTypeMulti;
49 namespace ArdourMeter {
50 typedef std::map<std::string,cairo_pattern_t*> TickPatterns;
51 typedef std::map<std::string,cairo_pattern_t*> MetricPatterns;
54 static ArdourMeter::TickPatterns ticks_patterns;
55 static ArdourMeter::MetricPatterns metric_patterns;
58 ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
65 return _("RMS + Peak");
73 static cairo_pattern_t*
74 meter_render_ticks (Gtk::Widget& w, vector<ARDOUR::DataType> types)
76 Glib::RefPtr<Gdk::Window> win (w.get_window());
80 win->get_size (width, height);
81 background = types.size() == 0
82 || w.get_name().substr(w.get_name().length() - 4) == "Left"
83 || w.get_name().substr(w.get_name().length() - 5) == "Right";
85 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
86 cairo_t* cr = cairo_create (surface);
88 cairo_move_to (cr, 0, 0);
89 cairo_rectangle (cr, 0, 0, width, height);
91 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
92 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
96 height = min(max_pattern_metric_size, height);
97 uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
99 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
102 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
104 if (types.size() > 1) {
105 /* we're overlaying more than 1 set of marks, so use different colours */
107 case DataType::AUDIO:
108 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
109 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
112 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
113 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
117 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
118 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
121 std::map<int,float> points;
124 case DataType::AUDIO:
125 points.insert (std::pair<int,float>(-60, 0.5));
126 points.insert (std::pair<int,float>(-50, 0.5));
127 points.insert (std::pair<int,float>(-40, 0.5));
128 points.insert (std::pair<int,float>(-30, 0.5));
129 if (Config->get_meter_line_up_level() == MeteringLineUp24) {
130 points.insert (std::pair<int,float>(-24, 0.5));
132 points.insert (std::pair<int,float>(-25, 0.5));
134 points.insert (std::pair<int,float>(-20, 1.0));
136 points.insert (std::pair<int,float>(-19, 0.5));
137 points.insert (std::pair<int,float>(-18, 1.0));
138 points.insert (std::pair<int,float>(-17, 0.5));
139 points.insert (std::pair<int,float>(-16, 0.5));
140 points.insert (std::pair<int,float>(-15, 1.0));
142 points.insert (std::pair<int,float>(-14, 0.5));
143 points.insert (std::pair<int,float>(-13, 0.5));
144 points.insert (std::pair<int,float>(-12, 0.5));
145 points.insert (std::pair<int,float>(-11, 0.5));
146 points.insert (std::pair<int,float>(-10, 1.0));
148 points.insert (std::pair<int,float>( -9, 0.5));
149 points.insert (std::pair<int,float>( -8, 0.5));
150 points.insert (std::pair<int,float>( -7, 0.5));
151 points.insert (std::pair<int,float>( -6, 0.5));
152 points.insert (std::pair<int,float>( -5, 1.0));
153 points.insert (std::pair<int,float>( -4, 0.5));
154 points.insert (std::pair<int,float>( -3, 0.5));
155 points.insert (std::pair<int,float>( -2, 0.5));
156 points.insert (std::pair<int,float>( -1, 0.5));
158 points.insert (std::pair<int,float>( 0, 1.0));
159 points.insert (std::pair<int,float>( 1, 0.5));
160 points.insert (std::pair<int,float>( 2, 0.5));
161 points.insert (std::pair<int,float>( 3, 0.5));
162 points.insert (std::pair<int,float>( 4, 0.5));
163 points.insert (std::pair<int,float>( 5, 0.5));
167 points.insert (std::pair<int,float>( 0, 1.0));
168 points.insert (std::pair<int,float>( 16, 0.5));
169 points.insert (std::pair<int,float>( 32, 0.5));
170 points.insert (std::pair<int,float>( 48, 0.5));
171 points.insert (std::pair<int,float>( 64, 1.0));
172 points.insert (std::pair<int,float>( 80, 0.5));
173 points.insert (std::pair<int,float>( 96, 0.5));
174 points.insert (std::pair<int,float>(100, 1.0));
175 points.insert (std::pair<int,float>(112, 0.5));
176 points.insert (std::pair<int,float>(127, 1.0));
180 for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
181 cairo_set_line_width (cr, (j->second));
187 case DataType::AUDIO:
188 if (j->first >= 0 || j->first == -9) {
189 cairo_set_source_rgb (cr,
190 UINT_RGBA_R_FLT(peakcolor),
191 UINT_RGBA_G_FLT(peakcolor),
192 UINT_RGBA_B_FLT(peakcolor));
194 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
196 fraction = log_meter (j->first);
197 pos = height - (gint) floor (height * fraction);
198 cairo_move_to(cr, 0, pos + .5);
199 cairo_line_to(cr, 3, pos + .5);
203 fraction = (j->first) / 127.0;
204 pos = 1 + height - (gint) floor (height * fraction);
205 pos = min (pos, height);
206 cairo_arc(cr, 1.5, pos + .5, 1.0, 0, 2 * M_PI);
213 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
216 cairo_surface_destroy (surface);
222 static cairo_pattern_t*
223 meter_render_metrics (Gtk::Widget& w, vector<DataType> types)
225 Glib::RefPtr<Gdk::Window> win (w.get_window());
230 win->get_size (width, height);
232 tickleft = w.get_name().substr(w.get_name().length() - 4) == "Left";
233 background = types.size() == 0 || tickleft || w.get_name().substr(w.get_name().length() - 5) == "Right";
235 cairo_surface_t* surface = cairo_image_surface_create (CAIRO_FORMAT_RGB24, width, height);
236 cairo_t* cr = cairo_create (surface);
237 Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(w.get_pango_context());
239 Pango::AttrList audio_font_attributes;
240 Pango::AttrList midi_font_attributes;
241 Pango::AttrList unit_font_attributes;
243 Pango::AttrFontDesc* font_attr;
244 Pango::FontDescription font;
246 font = Pango::FontDescription (""); // use defaults
247 //font = get_font_for_style("gain-fader");
248 //font = w.get_style()->get_font();
250 font.set_weight (Pango::WEIGHT_NORMAL);
251 font.set_size (9.0 * PANGO_SCALE);
252 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
253 audio_font_attributes.change (*font_attr);
256 font.set_weight (Pango::WEIGHT_ULTRALIGHT);
257 font.set_stretch (Pango::STRETCH_ULTRA_CONDENSED);
258 font.set_size (7.5 * PANGO_SCALE);
259 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
260 midi_font_attributes.change (*font_attr);
263 font.set_size (7.0 * PANGO_SCALE);
264 font_attr = new Pango::AttrFontDesc (Pango::Attribute::create_attr_font_desc (font));
265 unit_font_attributes.change (*font_attr);
268 cairo_move_to (cr, 0, 0);
269 cairo_rectangle (cr, 0, 0, width, height);
271 Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
272 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
276 height = min(max_pattern_metric_size, height);
277 uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
279 for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
283 if (types.size() > 1) {
284 /* we're overlaying more than 1 set of marks, so use different colours */
287 case DataType::AUDIO:
288 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
289 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
292 c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
293 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
297 c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
298 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
301 std::map<int,float> points;
304 case DataType::AUDIO:
305 layout->set_attributes (audio_font_attributes);
306 points.insert (std::pair<int,float>(-50, 0.5));
307 points.insert (std::pair<int,float>(-40, 0.5));
308 points.insert (std::pair<int,float>(-30, 0.5));
309 points.insert (std::pair<int,float>(-20, 1.0));
310 if (types.size() == 1) {
311 if (Config->get_meter_line_up_level() == MeteringLineUp24) {
312 points.insert (std::pair<int,float>(-24, 0.5));
314 points.insert (std::pair<int,float>(-25, 0.5));
316 points.insert (std::pair<int,float>(-15, 1.0));
318 points.insert (std::pair<int,float>(-18, 1.0));
319 points.insert (std::pair<int,float>(-10, 1.0));
320 points.insert (std::pair<int,float>( -5, 1.0));
321 points.insert (std::pair<int,float>( -3, 0.5));
322 points.insert (std::pair<int,float>( 0, 1.0));
323 points.insert (std::pair<int,float>( 3, 0.5));
327 layout->set_attributes (midi_font_attributes);
328 points.insert (std::pair<int,float>( 0, 1.0));
329 if (types.size() == 1) {
330 points.insert (std::pair<int,float>( 16, 0.5));
331 points.insert (std::pair<int,float>( 32, 0.5));
332 points.insert (std::pair<int,float>( 48, 0.5));
333 points.insert (std::pair<int,float>( 64, 1.0));
334 points.insert (std::pair<int,float>( 80, 0.5));
335 points.insert (std::pair<int,float>( 96, 0.5));
336 points.insert (std::pair<int,float>(100, 0.5));
337 points.insert (std::pair<int,float>(112, 0.5));
339 /* labels that don't overlay with dB */
340 points.insert (std::pair<int,float>( 24, 0.5));
341 points.insert (std::pair<int,float>( 48, 0.5));
342 points.insert (std::pair<int,float>( 72, 0.5));
344 points.insert (std::pair<int,float>(127, 1.0));
351 for (std::map<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
355 case DataType::AUDIO:
356 cairo_set_line_width (cr, (j->second));
358 cairo_set_source_rgb (cr,
359 UINT_RGBA_R_FLT(peakcolor),
360 UINT_RGBA_G_FLT(peakcolor),
361 UINT_RGBA_B_FLT(peakcolor));
363 fraction = log_meter (j->first);
364 snprintf (buf, sizeof (buf), "%+2d", j->first);
365 pos = height - (gint) floor (height * fraction);
367 cairo_move_to(cr, width-1.5, pos + .5);
368 cairo_line_to(cr, width, pos + .5);
370 cairo_move_to(cr, 0, pos + .5);
371 cairo_line_to(cr, 1.5, pos + .5);
376 cairo_set_line_width (cr, 1.0);
377 fraction = (j->first) / 127.0;
378 snprintf (buf, sizeof (buf), "%3d", j->first);
379 pos = 1 + height - (gint) rintf (height * fraction);
380 pos = min (pos, height);
382 cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
384 cairo_arc(cr, 3, pos + .5, 1.0, 0, 2 * M_PI);
390 layout->set_text(buf);
392 /* we want logical extents, not ink extents here */
395 layout->get_pixel_size(tw, th);
397 int p = pos - (th / 2);
398 p = min (p, height - th);
401 cairo_move_to (cr, width-3-tw, p);
402 pango_cairo_show_layout (cr, layout->gobj());
406 if (types.size() == 1) {
408 layout->set_attributes (unit_font_attributes);
409 switch (types.at(0)) {
410 case DataType::AUDIO:
411 layout->set_text("dBFS");
412 layout->get_pixel_size(tw, th);
415 layout->set_text("vel");
416 layout->get_pixel_size(tw, th);
419 Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
420 cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
421 cairo_move_to (cr, 2, height - th - 1.5);
422 pango_cairo_show_layout (cr, layout->gobj());
425 cairo_pattern_t* pattern = cairo_pattern_create_for_surface (surface);
428 cairo_surface_destroy (surface);
435 ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mta)
437 Glib::RefPtr<Gdk::Window> win (mta->get_window());
440 cr = gdk_cairo_create (win->gobj());
442 /* clip to expose area */
444 gdk_cairo_rectangle (cr, &ev->area);
447 cairo_pattern_t* pattern;
448 TickPatterns::iterator i = ticks_patterns.find (mta->get_name());
450 if (i == ticks_patterns.end()) {
451 pattern = meter_render_ticks (*mta, types);
452 ticks_patterns[mta->get_name()] = pattern;
457 cairo_move_to (cr, 0, 0);
458 cairo_set_source (cr, pattern);
461 win->get_size (width, height);
463 cairo_rectangle (cr, 0, 0, width, height);
472 ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, std::vector<ARDOUR::DataType> types, Gtk::DrawingArea *mma)
474 Glib::RefPtr<Gdk::Window> win (mma->get_window());
477 cr = gdk_cairo_create (win->gobj());
479 /* clip to expose area */
481 gdk_cairo_rectangle (cr, &ev->area);
484 cairo_pattern_t* pattern;
485 MetricPatterns::iterator i = metric_patterns.find (mma->get_name());
487 if (i == metric_patterns.end()) {
488 pattern = meter_render_metrics (*mma, types);
489 metric_patterns[mma->get_name()] = pattern;
494 cairo_move_to (cr, 0, 0);
495 cairo_set_source (cr, pattern);
498 win->get_size (width, height);
500 cairo_rectangle (cr, 0, 0, width, height);
509 ArdourMeter::meter_clear_pattern_cache(int which) {
510 MetricPatterns::iterator i = metric_patterns.begin();
511 TickPatterns::iterator j = ticks_patterns.begin();
513 while (i != metric_patterns.end()) {
515 std::string n = i->first;
516 if (n.substr(n.length() - 4) == "Left") { m = 1; }
517 if (n.substr(n.length() - 5) == "Right") { m = 2; }
519 cairo_pattern_destroy(i->second);
520 metric_patterns.erase(i++);
526 while (j != ticks_patterns.end()) {
528 std::string n = j->first;
529 if (n.substr(n.length() - 4) == "Left") { m = 1; }
530 if (n.substr(n.length() - 5) == "Right") { m = 2; }
532 cairo_pattern_destroy(j->second);
533 ticks_patterns.erase(j++);