2 Copyright (C) 2008-2012 Paul Davis
3 Author: David Robillard
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.
20 #ifndef __ardour_lv2_plugin_h__
21 #define __ardour_lv2_plugin_h__
26 #include <boost/enable_shared_from_this.hpp>
28 #include "ardour/plugin.h"
29 #include "ardour/uri_map.h"
30 #include "ardour/worker.h"
31 #include "pbd/ringbuffer.h"
33 #ifdef LV2_EXTENDED // -> needs to eventually go upstream to lv2plug.in
34 #include "ardour/lv2_extensions.h"
41 typedef struct LV2_Evbuf_Impl LV2_Evbuf;
45 // a callback function for lilv_state_new_from_instance(). friend of LV2Plugin
46 // so we can pass an LV2Plugin* in user_data and access its private members.
47 const void* lv2plugin_get_port_value(const char* port_symbol,
55 class LIBARDOUR_API LV2Plugin : public ARDOUR::Plugin, public ARDOUR::Workee
58 LV2Plugin (ARDOUR::AudioEngine& engine,
59 ARDOUR::Session& session,
61 framecnt_t sample_rate);
62 LV2Plugin (const LV2Plugin &);
65 std::string unique_id () const;
66 const char* uri () const;
67 const char* label () const;
68 const char* name () const;
69 const char* maker () const;
71 uint32_t num_ports () const;
72 uint32_t parameter_count () const;
73 float default_value (uint32_t port);
74 framecnt_t max_latency () const;
75 framecnt_t signal_latency () const;
76 void set_parameter (uint32_t port, float val);
77 float get_parameter (uint32_t port) const;
78 std::string get_docs() const;
79 std::string get_parameter_docs(uint32_t which) const;
80 int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
81 uint32_t nth_parameter (uint32_t port, bool& ok) const;
83 IOPortDescription describe_io_port (DataType dt, bool input, uint32_t id);
85 const void* extension_data (const char* uri) const;
87 const void* c_plugin();
89 const void* c_ui_type();
91 bool is_external_ui () const;
92 bool is_external_kx () const;
93 bool ui_is_resizable () const;
95 const char* port_symbol (uint32_t port) const;
96 uint32_t port_index (const char* symbol) const;
98 const LV2_Feature* const* features () { return _features; }
100 std::set<Evoral::Parameter> automatable () const;
101 virtual void set_automation_control (uint32_t, boost::shared_ptr<AutomationControl>);
107 int set_block_size (pframes_t);
108 bool requires_fixed_sized_buffers () const;
110 int connect_and_run (BufferSet& bufs,
111 ChanMapping in, ChanMapping out,
112 pframes_t nframes, framecnt_t offset);
114 std::string describe_parameter (Evoral::Parameter);
115 std::string state_node_name () const { return "lv2"; }
117 void print_parameter (uint32_t param,
121 bool parameter_is_audio (uint32_t) const;
122 bool parameter_is_control (uint32_t) const;
123 bool parameter_is_event (uint32_t) const;
124 bool parameter_is_input (uint32_t) const;
125 bool parameter_is_output (uint32_t) const;
126 bool parameter_is_toggled (uint32_t) const;
128 boost::shared_ptr<ScalePoints>
129 get_scale_points(uint32_t port_index) const;
131 void set_insert_id(PBD::ID id);
132 void set_state_dir (const std::string& d = "");
134 int set_state (const XMLNode& node, int version);
135 bool save_preset (std::string uri);
136 void remove_preset (std::string uri);
137 bool load_preset (PresetRecord);
138 std::string current_preset () const;
140 bool has_editor () const;
141 bool has_message_output () const;
143 bool write_from_ui(uint32_t index,
146 const uint8_t* body);
148 typedef void UIMessageSink(void* controller,
154 void enable_ui_emission();
155 void emit_to_ui(void* controller, UIMessageSink sink);
157 Worker* worker() { return _worker; }
159 URIMap& uri_map() { return _uri_map; }
160 const URIMap& uri_map() const { return _uri_map; }
162 int work(uint32_t size, const void* data);
163 int work_response(uint32_t size, const void* data);
165 void set_property(uint32_t key, const Variant& value);
166 const PropertyDescriptors& get_supported_properties() const { return _property_descriptors; }
167 const ParameterDescriptor& get_property_descriptor(uint32_t id) const;
168 void announce_property_values();
174 LV2_Feature** _features;
176 framecnt_t _sample_rate;
177 float* _control_data;
180 LV2_Evbuf** _ev_buffers;
181 LV2_Evbuf** _atom_ev_buffers;
182 float* _bpm_control_port; ///< Special input set by ardour
183 float* _freewheel_control_port; ///< Special input set by ardour
184 float* _latency_control_port; ///< Special output set by ardour
185 framepos_t _next_cycle_start; ///< Expected start frame of next run cycle
186 double _next_cycle_speed; ///< Expected start frame of next run cycle
188 std::string _plugin_state_dir;
189 uint32_t _patch_port_in_index;
190 uint32_t _patch_port_out_index;
192 bool _no_sample_accurate_ctrl;
193 bool _can_write_automation;
194 framecnt_t _max_latency;
195 framecnt_t _current_latency;
197 friend const void* lv2plugin_get_port_value(const char* port_symbol,
203 PORT_INPUT = 1, ///< Input port
204 PORT_OUTPUT = 1 << 1, ///< Output port
205 PORT_AUDIO = 1 << 2, ///< Audio (buffer of float)
206 PORT_CONTROL = 1 << 3, ///< Control (single float)
207 PORT_EVENT = 1 << 4, ///< Old event API event port
208 PORT_SEQUENCE = 1 << 5, ///< New atom API event port
209 PORT_MIDI = 1 << 6, ///< Event port understands MIDI
210 PORT_POSITION = 1 << 7, ///< Event port understands position
211 PORT_PATCHMSG = 1 << 8, ///< Event port supports patch:Message
212 PORT_AUTOCTRL = 1 << 9, ///< Event port supports auto:AutomationControl
213 PORT_CTRLED = 1 << 10 ///< Port prop auto:AutomationControlled (can be self controlled)
216 typedef unsigned PortFlags;
218 std::vector<PortFlags> _port_flags;
219 std::vector<size_t> _port_minimumSize;
220 std::map<std::string,uint32_t> _port_indices;
222 PropertyDescriptors _property_descriptors;
224 struct AutomationCtrl {
225 AutomationCtrl (const AutomationCtrl &other)
227 , guard (other.guard)
230 AutomationCtrl (boost::shared_ptr<ARDOUR::AutomationControl> c)
234 boost::shared_ptr<ARDOUR::AutomationControl> ac;
238 typedef boost::shared_ptr<AutomationCtrl> AutomationCtrlPtr;
239 typedef std::map<uint32_t, AutomationCtrlPtr> AutomationCtrlMap;
240 AutomationCtrlMap _ctrl_map;
241 AutomationCtrlPtr get_automation_control (uint32_t);
243 /// Message send to/from UI via ports
250 bool write_to_ui(uint32_t index,
253 const uint8_t* body);
255 bool write_to(RingBuffer<uint8_t>* dest,
259 const uint8_t* body);
261 // Created on demand so the space is only consumed if necessary
262 RingBuffer<uint8_t>* _to_ui;
263 RingBuffer<uint8_t>* _from_ui;
266 const LV2_Inline_Display_Interface* _display_interface;
270 const void* (*extension_data) (const char* uri);
273 LV2_DataAccess _data_access_extension_data;
274 LV2_Feature _data_access_feature;
275 LV2_Feature _instance_access_feature;
276 LV2_Feature _make_path_feature;
277 LV2_Feature _log_feature;
278 LV2_Feature _work_schedule_feature;
279 LV2_Feature _options_feature;
280 LV2_Feature _def_state_feature;
282 LV2_Feature _queue_draw_feature;
285 // Options passed to plugin
288 mutable unsigned _state_version;
291 bool _has_state_interface;
293 const std::string plugin_dir () const;
294 const std::string scratch_dir () const;
295 const std::string file_dir () const;
296 const std::string state_dir (unsigned num) const;
298 static char* lv2_state_make_path (void* host_data,
301 void init (const void* c_plugin, framecnt_t rate);
302 void allocate_atom_event_buffers ();
303 void run (pframes_t nsamples);
305 void load_supported_properties(PropertyDescriptors& descs);
308 bool has_inline_display ();
309 Plugin::Display_Image_Surface* render_inline_display (uint32_t, uint32_t);
312 void latency_compute_run ();
313 std::string do_save_preset (std::string);
314 void do_remove_preset (std::string);
315 void find_presets ();
316 void add_state (XMLNode *) const;
320 class LIBARDOUR_API LV2PluginInfo : public PluginInfo , public boost::enable_shared_from_this<ARDOUR::LV2PluginInfo> {
322 LV2PluginInfo (const char* plugin_uri);
325 static PluginInfoList* discover ();
327 PluginPtr load (Session& session);
328 std::vector<Plugin::PresetRecord> get_presets (bool user_only) const;
329 virtual bool in_category (const std::string &c) const;
330 virtual bool is_instrument() const;
335 typedef boost::shared_ptr<LV2PluginInfo> LV2PluginInfoPtr;
337 } // namespace ARDOUR
339 #endif /* __ardour_lv2_plugin_h__ */