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 char* port_symbol(uint32_t port);
71 const LV2_Feature* const* features() { return _features; }
73 std::set<Evoral::Parameter> automatable() const;
76 if (!_was_activated) {
77 slv2_instance_activate(_instance);
78 _was_activated = true;
84 slv2_instance_deactivate(_instance);
85 _was_activated = false;
92 slv2_instance_free(_instance);
96 void set_block_size (nframes_t nframes) {}
98 int connect_and_run (BufferSet& bufs, uint32_t& in, uint32_t& out, nframes_t nframes, nframes_t offset);
99 std::string describe_parameter (Evoral::Parameter);
100 std::string state_node_name() const { return "lv2"; }
101 void print_parameter (uint32_t, char*, uint32_t len) const;
103 bool parameter_is_audio(uint32_t) const;
104 bool parameter_is_control(uint32_t) const;
105 bool parameter_is_midi(uint32_t) const;
106 bool parameter_is_input(uint32_t) const;
107 bool parameter_is_output(uint32_t) const;
108 bool parameter_is_toggled(uint32_t) const;
110 XMLNode& get_state();
111 int set_state(const XMLNode& node);
112 bool save_preset(std::string name);
114 bool has_editor() const;
119 LV2_Feature** _features;
124 SLV2Instance _instance;
125 nframes_t _sample_rate;
126 float* _control_data;
129 float* _latency_control_port;
131 vector<bool> _port_is_input;
133 typedef struct { const void* (*extension_data)(const char* uri); } LV2_DataAccess;
134 LV2_DataAccess _data_access_extension_data;
135 LV2_Feature _data_access_feature;
136 LV2_Feature _instance_access_feature;
138 void init (LV2World& world, SLV2Plugin plugin, nframes_t rate);
139 void run (nframes_t nsamples);
140 void latency_compute_run ();
144 /** The SLV2World, and various cached (as symbols, fast) URIs.
146 * This object represents everything ardour 'knows' about LV2
147 * (ie understood extensions/features/etc)
154 SLV2Value input_class; ///< Input port
155 SLV2Value output_class; ///< Output port
156 SLV2Value audio_class; ///< Audio port
157 SLV2Value control_class; ///< Control port
158 SLV2Value event_class; ///< Event port
159 SLV2Value midi_class; ///< MIDI event
160 SLV2Value in_place_broken;
168 class LV2PluginInfo : public PluginInfo {
170 LV2PluginInfo (void* slv2_world, void* slv2_plugin);;
172 static PluginInfoList discover (void* slv2_world);
174 PluginPtr load (Session& session);
180 typedef boost::shared_ptr<LV2PluginInfo> LV2PluginInfoPtr;
182 } // namespace ARDOUR
184 #endif /* __ardour_lv2_plugin_h__ */