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 SLV2Plugin slv2_plugin() { return _plugin; }
64 SLV2Port slv2_port(uint32_t i) { return slv2_plugin_get_port_by_index(_plugin, i); }
66 std::set<Parameter> automatable() const;
69 if (!_was_activated) {
70 slv2_instance_activate(_instance);
71 _was_activated = true;
77 slv2_instance_deactivate(_instance);
78 _was_activated = false;
85 slv2_instance_free(_instance);
89 void set_block_size (nframes_t nframes) {}
91 int connect_and_run (BufferSet& bufs, uint32_t& in, uint32_t& out, nframes_t nframes, nframes_t offset);
92 std::string describe_parameter (Parameter);
93 std::string state_node_name() const { return "lv2"; }
94 void print_parameter (uint32_t, char*, uint32_t len) const;
96 bool parameter_is_audio(uint32_t) const;
97 bool parameter_is_control(uint32_t) const;
98 bool parameter_is_input(uint32_t) const;
99 bool parameter_is_output(uint32_t) const;
100 bool parameter_is_toggled(uint32_t) const;
102 XMLNode& get_state();
103 int set_state(const XMLNode& node);
104 bool save_preset(std::string name);
106 bool has_editor() const { return false; }
108 int require_output_streams (uint32_t);
116 SLV2Instance _instance;
117 nframes_t _sample_rate;
118 float* _control_data;
121 float* _latency_control_port;
123 vector<bool> _port_is_input;
125 void init (LV2World& world, SLV2Plugin plugin, nframes_t rate);
126 void run (nframes_t nsamples);
127 void latency_compute_run ();
131 /** The SLV2World, and various cached (as symbols, fast) URIs.
133 * This object represents everything ardour 'knows' about LV2
134 * (ie understood extensions/features/etc)
141 SLV2Value input_class;
142 SLV2Value output_class;
143 SLV2Value audio_class;
144 SLV2Value control_class;
145 SLV2Value event_class;
146 SLV2Value in_place_broken;
153 class LV2PluginInfo : public PluginInfo {
155 LV2PluginInfo (void* slv2_world, void* slv2_plugin);;
157 static PluginInfoList discover (void* slv2_world);
159 PluginPtr load (Session& session);
165 typedef boost::shared_ptr<LV2PluginInfo> LV2PluginInfoPtr;
167 } // namespace ARDOUR
169 #endif /* __ardour_lv2_plugin_h__ */