new tempo handling from drmoore; don't follow playhead when doing requested_return...

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

diff --git a/libs/ardour/ardour/ladspa_plugin.h b/libs/ardour/ardour/ladspa_plugin.h
index 2451953ce569363345a475fdd955bd2094fe2772..3c795299cc8eb544a4da398f18e98bfc6e5d75f7 100644 (file)
--- a/libs/ardour/ardour/ladspa_plugin.h
+++ b/libs/ardour/ardour/ladspa_plugin.h
@@ -1,5 +1,5 @@
 /*
-    Copyright (C) 2000 Paul Davis 
+    Copyright (C) 2000-2006 Paul Davis 
 
     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
@@ -15,7 +15,6 @@
     along with this program; if not, write to the Free Software
     Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 
-    $Id$
 */
 
 #ifndef __ardour_ladspa_plugin_h__
@@ -27,13 +26,12 @@
 #include <string>
 #include <dlfcn.h>
 
-#include <midi++/controllable.h>
 #include <sigc++/signal.h>
 
+#include <pbd/stateful.h> 
+
 #include <jack/types.h>
 #include <ardour/ladspa.h>
-#include <ardour/stateful.h>
-#include <ardour/plugin_state.h>
 #include <ardour/plugin.h>
 #include <ardour/ladspa_plugin.h>
 
@@ -48,44 +46,55 @@ class Session;
 class LadspaPlugin : public ARDOUR::Plugin
 {
   public:
-       LadspaPlugin (void *module, ARDOUR::AudioEngine&, ARDOUR::Session&, uint32_t index, jack_nframes_t sample_rate);
+       LadspaPlugin (void *module, ARDOUR::AudioEngine&, ARDOUR::Session&, uint32_t index, nframes_t sample_rate);
        LadspaPlugin (const LadspaPlugin &);
        ~LadspaPlugin ();
 
        /* Plugin interface */
        
-       uint32_t unique_id() const                       { return descriptor->UniqueID; }
+       std::string unique_id() const;
        const char * label() const                       { return descriptor->Label; }
        const char * name() const                        { return descriptor->Name; }
        const char * maker() const                       { return descriptor->Maker; }
        uint32_t parameter_count() const                 { return descriptor->PortCount; }
        float default_value (uint32_t port);
-       jack_nframes_t latency() const;
+       nframes_t latency() const;
        void set_parameter (uint32_t port, float val);
        float get_parameter (uint32_t port) const;
        int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
        std::set<uint32_t> automatable() const;
        uint32_t nth_parameter (uint32_t port, bool& ok) const;
        void activate () { 
+               if (was_activated)
+                       return;
+
                if (descriptor->activate) {
                        descriptor->activate (handle);
                }
+
                was_activated = true;
        }
        void deactivate () {
-               if (descriptor->deactivate) 
+               if (!was_activated)
+                       return;
+
+               if (descriptor->deactivate) {
                        descriptor->deactivate (handle);
+               }
+       
+               was_activated = false;
        }
        void cleanup () {
-               if (was_activated && descriptor->cleanup) {
+               activate();
+               deactivate();
+
+               if (descriptor->cleanup) {
                        descriptor->cleanup (handle);
                }
        }
-       void set_block_size (jack_nframes_t nframes) {}
+       void set_block_size (nframes_t nframes) {}
        
-       int connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, jack_nframes_t nframes, jack_nframes_t offset);
-       void store_state (ARDOUR::PluginState&);
-       void restore_state (ARDOUR::PluginState&);
+       int connect_and_run (vector<Sample*>& bufs, uint32_t maxbuf, int32_t& in, int32_t& out, nframes_t nframes, nframes_t offset);
        string describe_parameter (uint32_t);
        string state_node_name() const { return "ladspa"; }
        void print_parameter (uint32_t, char*, uint32_t len) const;
@@ -126,17 +135,28 @@ class LadspaPlugin : public ARDOUR::Plugin
        void                    *module;
        const LADSPA_Descriptor *descriptor;
        LADSPA_Handle            handle;
-       jack_nframes_t           sample_rate;
+       nframes_t           sample_rate;
        LADSPA_Data             *control_data;
        LADSPA_Data             *shadow_data;
        LADSPA_Data             *latency_control_port;
        uint32_t                _index;
        bool                     was_activated;
 
-       void init (void *mod, uint32_t index, jack_nframes_t rate);
-       void run (jack_nframes_t nsamples);
+       void init (void *mod, uint32_t index, nframes_t rate);
+       void run (nframes_t nsamples);
        void latency_compute_run ();
 };
-}
+
+class LadspaPluginInfo : public PluginInfo {
+  public:      
+       LadspaPluginInfo () { };
+       ~LadspaPluginInfo () { };
+
+       PluginPtr load (Session& session);
+};
+
+typedef boost::shared_ptr<LadspaPluginInfo> LadspaPluginInfoPtr;
+
+} // namespace ARDOUR
 
 #endif /* __ardour_ladspa_plugin_h__ */