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 10272ee733c5b56616429224a6f33d837d595bba..ddc1e5e48f1c83507199b545ee1944ace94b94ba 100644 (file)
--- a/libs/ardour/ardour/meter.h
+++ b/libs/ardour/ardour/meter.h
@@ -20,75 +20,92 @@
 #define __ardour_meter_h__
 
 #include <vector>
-#include <sigc++/slot.h>
+#include "ardour/libardour_visibility.h"
 #include "ardour/types.h"
 #include "ardour/processor.h"
 #include "pbd/fastlog.h"
 
+#include "ardour/kmeterdsp.h"
+#include "ardour/iec1ppmdsp.h"
+#include "ardour/iec2ppmdsp.h"
+#include "ardour/vumeterdsp.h"
+
 namespace ARDOUR {
 
 class BufferSet;
 class ChanCount;
 class Session;
 
-class Metering {
-  public:
-       static void               update_meters ();
-       static sigc::signal<void> Meter;
-
-       static sigc::connection   connect (sigc::slot<void> the_slot);
-       static void               disconnect (sigc::connection& c);
-
-  private:
-       /* this object is not meant to be instantiated */
-       virtual void foo() = 0;
-
-       static Glib::StaticMutex    m_meter_signal_lock;
-};
-
 /** Meters peaks on the input and stores them for access.
  */
-class PeakMeter : public Processor {
+class LIBARDOUR_API PeakMeter : public Processor {
 public:
-       PeakMeter(Session& s) : Processor(s, "Meter") {}
-       PeakMeter(Session&s, const XMLNode& node);
+        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 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
+          now on.
+       */
+
+       void reflect_inputs (const ChanCount& in);
+       void emit_configuration_changed ();
+
        /** Compute peaks */
-       void run (BufferSet& bufs, sframes_t start_frame, sframes_t end_frame, nframes_t nframes);
-
-       float peak_power (uint32_t n) {
-               if (n < _visible_peak_power.size()) {
-                       return _visible_peak_power[n];
-               } else {
-                       return minus_infinity();
-               }
-       }
-
-       float max_peak_power (uint32_t n) {
-               if (n < _max_peak_power.size()) {
-                       return _max_peak_power[n];
-               } else {
-                       return minus_infinity();
-               }
-       }
+       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 meter_level (uint32_t n, MeterType type);
+
+       void set_type(MeterType t);
+       MeterType get_type() { return _meter_type; }
 
        XMLNode& state (bool full);
 
+       PBD::Signal1<void, MeterType> TypeChanged;
+
 private:
        friend class IO;
 
-       std::vector<float> _peak_power;
-       std::vector<float> _visible_peak_power;
-       std::vector<float> _max_peak_power;
-};
+       /** The number of meters that we are currently handling;
+        *  may be different to _configured_input and _configured_output
+        *  as it can be altered outside a ::configure_io by ::reflect_inputs.
+        */
+       ChanCount current_meters;
+
+       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;
+       std::vector<Iec2ppmdsp *> _iec2meter;
+       std::vector<Vumeterdsp *> _vumeter;
+
+       MeterType _meter_type;
+};
 
 } // namespace ARDOUR