2 Copyright (C) 2008 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.
21 #ifndef __ardour_lv2_plugin_h__
22 #define __ardour_lv2_plugin_h__
29 #include <sigc++/signal.h>
31 #include <pbd/stateful.h>
33 #include <jack/types.h>
34 #include <slv2/slv2.h>
35 #include <ardour/plugin.h>
42 class LV2Plugin : public ARDOUR::Plugin
45 LV2Plugin (ARDOUR::AudioEngine&, ARDOUR::Session&, ARDOUR::LV2World&, SLV2Plugin plugin, nframes_t sample_rate);
46 LV2Plugin (const LV2Plugin &);
49 /* Plugin interface */
51 std::string unique_id() const;
52 const char* label() const { return slv2_value_as_string(_name); }
53 const char* name() const { return slv2_value_as_string(_name); }
54 const char* maker() const { return _author ? slv2_value_as_string(_author) : "Unknown"; }
55 uint32_t parameter_count() const { return slv2_plugin_get_num_ports(_plugin); }
56 float default_value (uint32_t port);
57 nframes_t signal_latency() const;
58 void set_parameter (uint32_t port, float val);
59 float get_parameter (uint32_t port) const;
60 int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
61 uint32_t nth_parameter (uint32_t port, bool& ok) const;
63 const void* extension_data(const char* uri) { return _instance->lv2_descriptor->extension_data(uri); }
65 SLV2Plugin slv2_plugin() { return _plugin; }
66 SLV2UI slv2_ui() { return _ui; }
67 SLV2Port slv2_port(uint32_t i) { return slv2_plugin_get_port_by_index(_plugin, i); }
69 const LV2_Feature* const* features() { return _features; }
71 std::set<Evoral::Parameter> automatable() const;
74 if (!_was_activated) {
75 slv2_instance_activate(_instance);
76 _was_activated = true;
82 slv2_instance_deactivate(_instance);
83 _was_activated = false;
90 slv2_instance_free(_instance);
94 void set_block_size (nframes_t nframes) {}
96 int connect_and_run (BufferSet& bufs, uint32_t& in, uint32_t& out, nframes_t nframes, nframes_t offset);
97 std::string describe_parameter (Evoral::Parameter);
98 std::string state_node_name() const { return "lv2"; }
99 void print_parameter (uint32_t, char*, uint32_t len) const;
101 bool parameter_is_audio(uint32_t) const;
102 bool parameter_is_control(uint32_t) const;
103 bool parameter_is_midi(uint32_t) const;
104 bool parameter_is_input(uint32_t) const;
105 bool parameter_is_output(uint32_t) const;
106 bool parameter_is_toggled(uint32_t) const;
108 XMLNode& get_state();
109 int set_state(const XMLNode& node);
110 bool save_preset(std::string name);
112 bool has_editor() const;
117 LV2_Feature** _features;
122 SLV2Instance _instance;
123 nframes_t _sample_rate;
124 float* _control_data;
127 float* _latency_control_port;
129 vector<bool> _port_is_input;
131 typedef struct { const void* (*extension_data)(const char* uri); } LV2_DataAccess;
132 LV2_DataAccess _data_access_extension_data;
133 LV2_Feature _data_access_feature;
134 LV2_Feature _instance_access_feature;
136 void init (LV2World& world, SLV2Plugin plugin, nframes_t rate);
137 void run (nframes_t nsamples);
138 void latency_compute_run ();
142 /** The SLV2World, and various cached (as symbols, fast) URIs.
144 * This object represents everything ardour 'knows' about LV2
145 * (ie understood extensions/features/etc)
152 SLV2Value input_class; ///< Input port
153 SLV2Value output_class; ///< Output port
154 SLV2Value audio_class; ///< Audio port
155 SLV2Value control_class; ///< Control port
156 SLV2Value event_class; ///< Event port
157 SLV2Value midi_class; ///< MIDI event
158 SLV2Value in_place_broken;
166 class LV2PluginInfo : public PluginInfo {
168 LV2PluginInfo (void* slv2_world, void* slv2_plugin);;
170 static PluginInfoList discover (void* slv2_world);
172 PluginPtr load (Session& session);
178 typedef boost::shared_ptr<LV2PluginInfo> LV2PluginInfoPtr;
180 } // namespace ARDOUR
182 #endif /* __ardour_lv2_plugin_h__ */