fix crash when copy'ing latent plugins

[ardour.git] / libs / ardour / ardour / meter.h

diff --git a/libs/ardour/ardour/meter.h b/libs/ardour/ardour/meter.h
index 4ac140fd04d75661b66032811888283b5f8d4d78..ddc1e5e48f1c83507199b545ee1944ace94b94ba 100644 (file)
--- a/libs/ardour/ardour/meter.h
+++ b/libs/ardour/ardour/meter.h
@@ -20,6 +20,7 @@
 #define __ardour_meter_h__
 
 #include <vector>
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 #include "ardour/processor.h"
 #include "pbd/fastlog.h"
@@ -35,35 +36,24 @@ class BufferSet;
 class ChanCount;
 class Session;
 
-class Metering {
-  public:
-       static void               update_meters ();
-       static PBD::Signal0<void> Meter;
-
-  private:
-       /* this object is not meant to be instantiated */
-       Metering();
-};
-
 /** Meters peaks on the input and stores them for access.
  */
-class PeakMeter : public Processor {
+class LIBARDOUR_API PeakMeter : public Processor {
 public:
         PeakMeter(Session& s, const std::string& name);
         ~PeakMeter();
 
-       void meter();
        void reset ();
        void reset_max ();
 
-       bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
+       bool can_support_io_configuration (const ChanCount& in, ChanCount& out);
        bool configure_io (ChanCount in, ChanCount out);
 
        /* special method for meter, to ensure that it can always handle the maximum
           number of streams in the route, no matter where we put it.
        */
 
-       void reset_max_channels (const ChanCount&);
+       void set_max_channels (const ChanCount&);
 
        /* tell the meter than no matter how many channels it can handle,
           `in' is the number it is actually going be handling from
@@ -71,21 +61,17 @@ public:
        */
 
        void reflect_inputs (const ChanCount& in);
+       void emit_configuration_changed ();
 
        /** Compute peaks */
-       void run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, pframes_t nframes, bool);
+       void run (BufferSet& bufs, framepos_t start_frame, framepos_t end_frame, double speed, pframes_t nframes, bool);
+
+       void activate ()   { }
+       void deactivate () { }
 
        ChanCount input_streams () const { return current_meters; }
        ChanCount output_streams () const { return current_meters; }
 
-       float peak_power (uint32_t n) {
-               if (n < _visible_peak_power.size()) {
-                       return _visible_peak_power[n];
-               } else {
-                       return minus_infinity();
-               }
-       }
-
        float meter_level (uint32_t n, MeterType type);
 
        void set_type(MeterType t);
@@ -104,10 +90,14 @@ private:
         */
        ChanCount current_meters;
 
-       std::vector<float> _peak_signal;
-       std::vector<float> _visible_peak_power;
-       std::vector<float> _max_peak_signal;
-       std::vector<float> _max_peak_power;
+       bool               _reset_dpm;
+       bool               _reset_max;
+
+       uint32_t           _bufcnt;
+       std::vector<float> _peak_buffer; // internal, integrate
+       std::vector<float> _peak_power;  // includes accurate falloff, hence dB
+       std::vector<float> _max_peak_signal; // dB calculation is done on demand
+       float _combined_peak; // Mackie surfaces expect the highest peak of all track channels
 
        std::vector<Kmeterdsp *> _kmeter;
        std::vector<Iec1ppmdsp *> _iec1meter;