cache midi metrics depending on meter-type and data-type(s)
[ardour.git] / gtk2_ardour / meter_patterns.cc
index ff977c84c3d33a8b0b1a24df1823b9b96b1c73ba..50fcaa4684a20b4c0fff94c969ecf6d86b515a5b 100644 (file)
@@ -52,15 +52,17 @@ sigc::signal<void, int, ARDOUR::RouteGroup*, ARDOUR::MeterType> ArdourMeter::Set
 /* pattern cache */
 
 struct MeterMatricsMapKey {
-       MeterMatricsMapKey (std::string n, MeterType t)
+       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);
+               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 {
@@ -108,6 +110,13 @@ ArdourMeter::meter_type_string (ARDOUR::MeterType mt)
        }
 }
 
+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)
@@ -129,6 +138,9 @@ static inline float mtr_col_and_fract(
                        }
                        break;
                case MeterIEC2BBC:
+                       fraction = meter_deflect_ppm(val);
+                       cairo_set_source_rgb (cr, c->get_red_p(), c->get_green_p(), c->get_blue_p());
+                       break;
                case MeterIEC2EBU:
                        fraction = meter_deflect_ppm(val);
                        if (val >= -10.0) {
@@ -197,7 +209,56 @@ static inline float mtr_col_and_fract(
        return fraction;
 }
 
+static void set_bg_color(Gtk::Widget& w, cairo_t* cr, MeterType type) {
+       float r,g,b;
+       switch(type) {
+               case MeterVU:
+                       if (rgba_p_from_style("meterstripVU", &r, &g, &b, "bg")) {
+                               cairo_set_source_rgb (cr, r, g, b);
+                       } else {
+                               cairo_set_source_rgb (cr, 1.0, 1.0, 0.85);
+                       }
+                       break;
+               case MeterIEC1DIN:
+               case MeterIEC1NOR:
+               case MeterIEC2BBC:
+               case MeterIEC2EBU:
+               case MeterK14:
+               case MeterK20:
+                       if (rgba_p_from_style("meterstripPPM", &r, &g, &b, "bg")) {
+                               cairo_set_source_rgb (cr, r, g, b);
+                       } else {
+                               cairo_set_source_rgb (cr, 0.1, 0.1, 0.1);
+                       }
+                       break;
+               default:
+                       {
+                       Gdk::Color c = w.get_style()->get_bg (Gtk::STATE_ACTIVE);
+                       cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
+                       }
+                       break;
+       }
+}
 
+static void set_fg_color(Gtk::Widget& w, MeterType type, Gdk::Color * c) {
+       float r,g,b;
+       switch(type) {
+               case MeterVU:
+                       if (rgba_p_from_style("meterstripVU", &r, &g, &b)) {
+                               c->set_rgb_p(r, g, b);
+                       } else {
+                               c->set_rgb_p(0.0, 0.0, 0.0);
+                       }
+                       break;
+               default:
+                       if (rgba_p_from_style("meterstripPPM", &r, &g, &b)) {
+                               c->set_rgb_p(r, g, b);
+                       } else {
+                               c->set_rgb_p(1.0, 1.0, 1.0);
+                       }
+                       break;
+       }
+}
 
 static cairo_pattern_t*
 meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> types)
@@ -216,8 +277,13 @@ meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> typ
 
        cairo_move_to (cr, 0, 0);
        cairo_rectangle (cr, 0, 0, width, height);
-       {
-               Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
+
+       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);
@@ -228,57 +294,50 @@ meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> typ
        for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 
                Gdk::Color c;
-               c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
-
-               if (types.size() > 1) {
+               if (types.size() > 1 && (*i) == DataType::MIDI) {
                        /* we're overlaying more than 1 set of marks, so use different colours */
-                       switch (*i) {
-                       case DataType::AUDIO:
-                               c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
-                               cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
-                               break;
-                       case DataType::MIDI:
-                               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());
-                               break;
-                       }
+                       c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
+               } else if (background) {
+                       set_fg_color(w, type, &c);
+                       cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
                } else {
                        c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
-                       cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
                }
+               cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
 
-               std::map<int,float> points;
+               // tick-maker position in dBFS, line-thickness
+               std::map<float,float> points;
 
                switch (*i) {
                case DataType::AUDIO:
 
                        switch (type) {
                                case MeterK14:
-                                       points.insert (std::pair<int,float>(-54.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-44.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-34.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-24.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-20.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-17.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-14.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-11.0f, 1.0));
-                                       points.insert (std::pair<int,float>( -8.0f, 1.0));
-                                       points.insert (std::pair<int,float>( -4.0f, 1.0));
-                                       points.insert (std::pair<int,float>(  0.0f, 1.0));
+                                       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));
+                                       points.insert (std::pair<float,float>(-11.0f, 1.0));
+                                       points.insert (std::pair<float,float>( -8.0f, 1.0));
+                                       points.insert (std::pair<float,float>( -4.0f, 1.0));
+                                       points.insert (std::pair<float,float>(  0.0f, 1.0));
                                        break;
                                case MeterK20:
-                                       points.insert (std::pair<int,float>(-60.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-50.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-40.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-30.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-26.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-23.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-20.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-17.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-14.0f, 1.0));
-                                       points.insert (std::pair<int,float>(-10.0f, 1.0));
-                                       points.insert (std::pair<int,float>( -5.0f, 1.0));
-                                       points.insert (std::pair<int,float>(  0.0f, 1.0));
+                                       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));
+                                       points.insert (std::pair<float,float>(-17.0f, 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>( -5.0f, 1.0));
+                                       points.insert (std::pair<float,float>(  0.0f, 1.0));
                                        break;
                                case MeterIEC2EBU:
                                        points.insert (std::pair<float,float>(-30.0f, 1.0));
@@ -357,64 +416,64 @@ meter_render_ticks (Gtk::Widget& w, MeterType type, vector<ARDOUR::DataType> typ
                                        break;
 
                                default:
-                                       points.insert (std::pair<int,float>(-60, 0.5));
-                                       points.insert (std::pair<int,float>(-50, 1.0));
-                                       points.insert (std::pair<int,float>(-40, 1.0));
-                                       points.insert (std::pair<int,float>(-30, 1.0));
+                                       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 (Config->get_meter_line_up_level() == MeteringLineUp24) {
-                                               points.insert (std::pair<int,float>(-24, 1.0));
+                                               points.insert (std::pair<float,float>(-24, 1.0));
                                        } else {
-                                               points.insert (std::pair<int,float>(-25, 1.0));
+                                               points.insert (std::pair<float,float>(-25, 1.0));
                                        }
-                                       points.insert (std::pair<int,float>(-20, 1.0));
-
-                                       points.insert (std::pair<int,float>(-19, 0.5));
-                                       points.insert (std::pair<int,float>(-18, 1.0));
-                                       points.insert (std::pair<int,float>(-17, 0.5));
-                                       points.insert (std::pair<int,float>(-16, 0.5));
-                                       points.insert (std::pair<int,float>(-15, 1.0));
-
-                                       points.insert (std::pair<int,float>(-14, 0.5));
-                                       points.insert (std::pair<int,float>(-13, 0.5));
-                                       points.insert (std::pair<int,float>(-12, 0.5));
-                                       points.insert (std::pair<int,float>(-11, 0.5));
-                                       points.insert (std::pair<int,float>(-10, 1.0));
-
-                                       points.insert (std::pair<int,float>( -9, 1.0));
-                                       points.insert (std::pair<int,float>( -8, 0.5));
-                                       points.insert (std::pair<int,float>( -7, 0.5));
-                                       points.insert (std::pair<int,float>( -6, 0.5));
-                                       points.insert (std::pair<int,float>( -5, 1.0));
-                                       points.insert (std::pair<int,float>( -4, 0.5));
-                                       points.insert (std::pair<int,float>( -3, 1.0));
-                                       points.insert (std::pair<int,float>( -2, 0.5));
-                                       points.insert (std::pair<int,float>( -1, 0.5));
-
-                                       points.insert (std::pair<int,float>(  0, 1.0));
-                                       points.insert (std::pair<int,float>(  1, 0.5));
-                                       points.insert (std::pair<int,float>(  2, 0.5));
-                                       points.insert (std::pair<int,float>(  3, 1.0));
-                                       points.insert (std::pair<int,float>(  4, 0.5));
-                                       points.insert (std::pair<int,float>(  5, 0.5));
+                                       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));
+
+                                       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));
                                        break;
                        }
                        break;
 
                case DataType::MIDI:
-                       points.insert (std::pair<int,float>(  0, 1.0));
-                       points.insert (std::pair<int,float>( 16, 0.5));
-                       points.insert (std::pair<int,float>( 32, 0.5));
-                       points.insert (std::pair<int,float>( 48, 0.5));
-                       points.insert (std::pair<int,float>( 64, 1.0));
-                       points.insert (std::pair<int,float>( 80, 0.5));
-                       points.insert (std::pair<int,float>( 96, 0.5));
-                       points.insert (std::pair<int,float>(100, 1.0));
-                       points.insert (std::pair<int,float>(112, 0.5));
-                       points.insert (std::pair<int,float>(127, 1.0));
+                       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<int,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
+               for (std::map<float,float>::const_iterator j = points.begin(); j != points.end(); ++j) {
                        cairo_set_line_width (cr, (j->second));
 
                        float fraction = 0;
@@ -456,6 +515,7 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 
        bool tickleft, tickright;
        bool background;
+       int overlay_midi = 1;
        gint width, height;
        win->get_size (width, height);
 
@@ -501,8 +561,12 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 
        cairo_move_to (cr, 0, 0);
        cairo_rectangle (cr, 0, 0, width, height);
-       {
-               Gdk::Color c = w.get_style()->get_bg (background ? Gtk::STATE_ACTIVE : Gtk::STATE_NORMAL);
+       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);
@@ -511,85 +575,83 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 
        height = min(max_pattern_metric_size, height);
        uint32_t peakcolor = ARDOUR_UI::config()->color_by_name ("meterbridge peaklabel");
+       Gdk::Color c; // default text color
 
        for (vector<DataType>::const_iterator i = types.begin(); i != types.end(); ++i) {
 
-               Gdk::Color c;
-               if (types.size() > 1) {
+               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 */
-                       switch (*i) {
-                       case DataType::AUDIO:
-                               c = w.get_style()->get_fg (Gtk::STATE_NORMAL);
-                               cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
-                               break;
-                       case DataType::MIDI:
-                               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());
-                               break;
-                       }
+                       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);
-                       cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
                }
 
-
-               std::map<float,string> points;
+               std::map<float,string> points; // map: label-pos in dBFS, label-text
 
                switch (*i) {
                case DataType::AUDIO:
                        layout->set_attributes (audio_font_attributes);
                        switch (type) {
                                case MeterK14:
-                                       points.insert (std::pair<int,string>(-54.0f, "-40"));
-                                       points.insert (std::pair<int,string>(-44.0f, "-30"));
-                                       points.insert (std::pair<int,string>(-34.0f, "-20"));
-                                       points.insert (std::pair<int,string>(-24.0f, "-10"));
-                                       points.insert (std::pair<int,string>(-20.0f,  "-6"));
-                                       points.insert (std::pair<int,string>(-17.0f,  "-3"));
-                                       points.insert (std::pair<int,string>(-14.0f,   "0"));
-                                       points.insert (std::pair<int,string>(-11.0f,  "+3"));
-                                       points.insert (std::pair<int,string>( -8.0f,  "+6"));
-                                       points.insert (std::pair<int,string>( -4.0f, "+10"));
-                                       points.insert (std::pair<int,string>(  0.0f, "+14"));
+                                       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:
-                                       points.insert (std::pair<int,string>(-60.0f, "-40"));
-                                       points.insert (std::pair<int,string>(-50.0f, "-30"));
-                                       points.insert (std::pair<int,string>(-40.0f, "-20"));
-                                       points.insert (std::pair<int,string>(-30.0f, "-10"));
-                                       points.insert (std::pair<int,string>(-26.0f,  "-6"));
-                                       points.insert (std::pair<int,string>(-23.0f,  "-3"));
-                                       points.insert (std::pair<int,string>(-20.0f,   "0"));
-                                       points.insert (std::pair<int,string>(-17.0f,  "+3"));
-                                       points.insert (std::pair<int,string>(-14.0f,  "+6"));
-                                       points.insert (std::pair<int,string>(-10.0f, "+10"));
-                                       points.insert (std::pair<int,string>( -5.0f, "+15"));
-                                       points.insert (std::pair<int,string>(  0.0f, "+20"));
+                                       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<int,string>(-50.0f, "-50"));
-                                       points.insert (std::pair<int,string>(-40.0f, "-40"));
-                                       points.insert (std::pair<int,string>(-30.0f, "-30"));
-                                       points.insert (std::pair<int,string>(-20.0f, "-20"));
+                                       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 (Config->get_meter_line_up_level() == MeteringLineUp24) {
-                                                       points.insert (std::pair<int,string>(-24.0f, "-24"));
+                                                       points.insert (std::pair<float,string>(-24.0f, "-24"));
                                                } else {
-                                                       points.insert (std::pair<int,string>(-25.0f, "-25"));
+                                                       points.insert (std::pair<float,string>(-25.0f, "-25"));
                                                }
-                                               points.insert (std::pair<int,string>(-15.0f, "-15"));
+                                               points.insert (std::pair<float,string>(-15.0f, "-15"));
                                        }
-                                       points.insert (std::pair<int,string>(-18.0f, "-18"));
-                                       points.insert (std::pair<int,string>(-10.0f, "-10"));
-                                       points.insert (std::pair<int,string>( -5.0f, "-5"));
-                                       points.insert (std::pair<int,string>( -3.0f, "-3"));
-                                       points.insert (std::pair<int,string>(  0.0f, "+0"));
-                                       points.insert (std::pair<int,string>(  3.0f, "+3"));
+                                       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"));
+                                       points.insert (std::pair<float,string>(  3.0f, "+3"));
                                        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"));
@@ -600,16 +662,18 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                                        break;
 
                                case MeterIEC2BBC:
-                                       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"));
+                                       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"));
@@ -630,6 +694,7 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                                        break;
 
                                case MeterIEC1DIN:
+                                       overlay_midi = 2;
                                        //points.insert (std::pair<float,string>( -3.0f, "200%"));
                                        points.insert (std::pair<float,string>( -4.0f, "+5")); // "100%"
                                        points.insert (std::pair<float,string>( -9.0f, "0"));
@@ -645,10 +710,11 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                                        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>(-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"));
@@ -661,23 +727,47 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                        break;
                case DataType::MIDI:
                        layout->set_attributes (midi_font_attributes);
-                       points.insert (std::pair<int,string>(  0, "0"));
                        if (types.size() == 1) {
-                               points.insert (std::pair<int,string>( 16,  "16"));
-                               points.insert (std::pair<int,string>( 32,  "32"));
-                               points.insert (std::pair<int,string>( 48,  "48"));
-                               points.insert (std::pair<int,string>( 64,  "64"));
-                               points.insert (std::pair<int,string>( 80,  "80"));
-                               points.insert (std::pair<int,string>( 96,  "96"));
-                               points.insert (std::pair<int,string>(100, "100"));
-                               points.insert (std::pair<int,string>(112, "112"));
+                               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"));
                        } else {
-                               /* labels that don't overlay with dB */
-                               points.insert (std::pair<int,string>( 24, "24"));
-                               points.insert (std::pair<int,string>( 48, "48"));
-                               points.insert (std::pair<int,string>( 72, "74"));
+                               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"));
+                                       default:
+                                               break;
+                               }
                        }
-                       points.insert (std::pair<int,string>(127, "127"));
                        break;
                }
 
@@ -685,6 +775,7 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
 
                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);
@@ -703,9 +794,11 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                                        break;
 
                                case DataType::MIDI:
+                                       align_center = false; // don't bleed into legend
                                        fraction = (j->first) / 127.0;
                                        pos = 1 + height - (gint) rintf (height * fraction);
                                        pos = min (pos, height);
+                                       cairo_set_source_rgb (cr, c.get_red_p(), c.get_green_p(), c.get_blue_p());
                                        if (tickleft) {
                                                cairo_arc(cr, width - 2.0, pos + .5, 1.0, 0, 2 * M_PI);
                                                cairo_fill(cr);
@@ -725,13 +818,31 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                        p = min (p, height - th);
                        p = max (p, 0);
 
-                       cairo_move_to (cr, width-3-tw, p);
+                       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) {
+       if (types.size() == 1 || overlay_midi == 0) {
                int tw, th;
                layout->set_attributes (unit_font_attributes);
                switch (types.at(0)) {
@@ -767,13 +878,19 @@ meter_render_metrics (Gtk::Widget& w, MeterType type, vector<DataType> types)
                                layout->get_pixel_size(tw, th);
                                break;
                        case DataType::MIDI:
-                               layout->set_text("vel");
+                               layout->set_text("mid");
                                layout->get_pixel_size(tw, th);
                                break;
                }
-               Gdk::Color c = w.get_style()->get_fg (Gtk::STATE_ACTIVE);
+               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());
-               cairo_move_to (cr, 2, height - th - 0.5);
+               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());
        }
 
@@ -799,7 +916,7 @@ ArdourMeter::meter_expose_ticks (GdkEventExpose *ev, MeterType type, std::vector
        cairo_clip (cr);
 
        cairo_pattern_t* pattern;
-       const MeterMatricsMapKey key (mta->get_name(), type);
+       const MeterMatricsMapKey key (mta->get_name(), type, types_to_bit(types));
        MetricPatternMap::iterator i = ticks_patterns.find (key);
 
        if (i == ticks_patterns.end()) {
@@ -837,7 +954,7 @@ ArdourMeter::meter_expose_metrics (GdkEventExpose *ev, MeterType type, std::vect
        cairo_clip (cr);
 
        cairo_pattern_t* pattern;
-       const MeterMatricsMapKey key (mma->get_name(), type);
+       const MeterMatricsMapKey key (mma->get_name(), type, types_to_bit(types));
        MetricPatternMap::iterator i = metric_patterns.find (key);
 
        if (i == metric_patterns.end()) {