2 Copyright (C) 2016 Robin Gareus <robin@gareus.org>
3 Copyright (C) 2006 Paul Davis
5 This program is free software; you can redistribute it and/or modify it
6 under the terms of the GNU General Public License as published by the Free
7 Software Foundation; either version 2 of the License, or (at your option)
10 This program is distributed in the hope that it will be useful, but WITHOUT
11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
15 You should have received a copy of the GNU General Public License along
16 with this program; if not, write to the Free Software Foundation, Inc.,
17 675 Mass Ave, Cambridge, MA 02139, USA.
21 #include <glibmm/miscutils.h>
22 #include <glibmm/fileutils.h>
24 #include "pbd/gstdio_compat.h"
25 #include "pbd/pthread_utils.h"
27 #include "ardour/audio_buffer.h"
28 #include "ardour/buffer_set.h"
29 #include "ardour/filesystem_paths.h"
30 #include "ardour/luabindings.h"
31 #include "ardour/luaproc.h"
32 #include "ardour/luascripting.h"
33 #include "ardour/midi_buffer.h"
34 #include "ardour/plugin.h"
35 #include "ardour/session.h"
37 #include "LuaBridge/LuaBridge.h"
41 using namespace ARDOUR;
44 LuaProc::LuaProc (AudioEngine& engine,
46 const std::string &script)
47 : Plugin (engine, session)
48 , _mempool ("LuaProc", 3145728)
50 , lua (lua_newstate (&PBD::TLSF::lalloc, &_mempool))
51 #elif defined USE_MALLOC
54 , lua (lua_newstate (&PBD::ReallocPool::lalloc, &_mempool))
58 , _lua_does_channelmapping (false)
59 , _lua_has_inline_display (false)
60 , _designated_bypass_port (UINT32_MAX)
64 , _has_midi_input (false)
65 , _has_midi_output (false)
69 /* when loading a session, or pasing a processor,
70 * the script is set during set_state();
72 if (!_script.empty () && load_script ()) {
73 throw failed_constructor ();
77 LuaProc::LuaProc (const LuaProc &other)
79 , _mempool ("LuaProc", 3145728)
81 , lua (lua_newstate (&PBD::TLSF::lalloc, &_mempool))
82 #elif defined USE_MALLOC
85 , lua (lua_newstate (&PBD::ReallocPool::lalloc, &_mempool))
88 , _script (other.script ())
89 , _origin (other._origin)
90 , _lua_does_channelmapping (false)
91 , _lua_has_inline_display (false)
92 , _designated_bypass_port (UINT32_MAX)
96 , _has_midi_input (false)
97 , _has_midi_output (false)
101 if (load_script ()) {
102 throw failed_constructor ();
105 for (uint32_t i = 0; i < parameter_count (); ++i) {
106 _control_data[i] = other._shadow_data[i];
107 _shadow_data[i] = other._shadow_data[i];
111 LuaProc::~LuaProc () {
112 #ifdef WITH_LUAPROC_STATS
113 if (_info && _stats_cnt > 0) {
114 printf ("LuaProc: '%s' run() avg: %.3f max: %.3f [ms]\n",
115 _info->name.c_str (),
116 0.0001f * _stats_avg[0] / (float) _stats_cnt,
117 0.0001f * _stats_max[0]);
118 printf ("LuaProc: '%s' gc() avg: %.3f max: %.3f [ms]\n",
119 _info->name.c_str (),
120 0.0001f * _stats_avg[1] / (float) _stats_cnt,
121 0.0001f * _stats_max[1]);
124 lua.do_command ("collectgarbage();");
126 delete [] _control_data;
127 delete [] _shadow_data;
133 #ifdef WITH_LUAPROC_STATS
134 _stats_avg[0] = _stats_avg[1] = _stats_max[0] = _stats_max[1] = _stats_cnt = 0;
138 lua.Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
139 // register session object
140 lua_State* L = lua.getState ();
141 LuaBindings::stddef (L);
142 LuaBindings::common (L);
143 LuaBindings::dsp (L);
145 luabridge::getGlobalNamespace (L)
146 .beginNamespace ("Ardour")
147 .deriveClass <LuaProc, PBD::StatefulDestructible> ("LuaProc")
148 .addFunction ("queue_draw", &LuaProc::queue_draw)
149 .addFunction ("shmem", &LuaProc::instance_shm)
150 .addFunction ("table", &LuaProc::instance_ref)
151 .addFunction ("route", &LuaProc::route)
152 .addFunction ("unique_id", &LuaProc::unique_id)
153 .addFunction ("name", &LuaProc::name)
157 // add session to global lua namespace
158 luabridge::push <Session *> (L, &_session);
159 lua_setglobal (L, "Session");
162 luabridge::push <LuaProc *> (L, this);
163 lua_setglobal (L, "self");
168 lua.do_command ("for n in pairs(_G) do print(n) end print ('----')"); // print global env
170 lua.do_command ("function ardour () end");
173 boost::weak_ptr<Route>
174 LuaProc::route () const
177 return boost::weak_ptr<Route>();
179 return static_cast<Route*>(_owner)->weakroute ();
183 LuaProc::lua_print (std::string s) {
184 std::cout <<"LuaProc: " << s << "\n";
185 PBD::error << "LuaProc: " << s << "\n";
189 LuaProc::load_script ()
191 assert (!_lua_dsp); // don't allow to re-initialize
192 LuaPluginInfoPtr lpi;
194 // TODO: refine APIs; function arguments..
195 // - perform channel-map in ardour (silent/scratch buffers) ?
196 // - control-port API (explicit get/set functions ??)
197 // - latency reporting (global var? ctrl-port? set-function ?)
198 // - MIDI -> sparse table of events
199 // { [sample] => { Event }, .. }
200 // or { { sample, Event }, .. }
203 LuaScriptInfoPtr lsi = LuaScripting::script_info (_script);
204 lpi = LuaPluginInfoPtr (new LuaPluginInfo (lsi));
207 _mempool.set_name ("LuaProc: " + lsi->name);
208 _docs = lsi->description;
209 } catch (failed_constructor& err) {
213 lua_State* L = lua.getState ();
214 lua.do_command (_script);
216 // check if script has a DSP callback
217 luabridge::LuaRef lua_dsp_run = luabridge::getGlobal (L, "dsp_run");
218 luabridge::LuaRef lua_dsp_map = luabridge::getGlobal (L, "dsp_runmap");
220 if ((lua_dsp_run.type () != LUA_TFUNCTION) == (lua_dsp_map.type () != LUA_TFUNCTION)) {
224 if (lua_dsp_run.type () == LUA_TFUNCTION) {
225 _lua_dsp = new luabridge::LuaRef (lua_dsp_run);
227 else if (lua_dsp_map.type () == LUA_TFUNCTION) {
228 _lua_dsp = new luabridge::LuaRef (lua_dsp_map);
229 _lua_does_channelmapping = true;
235 // initialize the DSP if needed
236 luabridge::LuaRef lua_dsp_init = luabridge::getGlobal (L, "dsp_init");
237 if (lua_dsp_init.type () == LUA_TFUNCTION) {
239 lua_dsp_init (_session.nominal_frame_rate ());
240 } catch (luabridge::LuaException const& e) {
245 _ctrl_params.clear ();
247 luabridge::LuaRef lua_render = luabridge::getGlobal (L, "render_inline");
248 if (lua_render.isFunction ()) {
249 _lua_has_inline_display = true;
252 luabridge::LuaRef lua_params = luabridge::getGlobal (L, "dsp_params");
253 if (lua_params.isFunction ()) {
255 // call function // add try {} catch (luabridge::LuaException const& e)
256 luabridge::LuaRef params = lua_params ();
258 if (params.isTable ()) {
260 for (luabridge::Iterator i (params); !i.isNil (); ++i) {
262 if (!i.key ().isNumber ()) { return false; }
263 if (!i.value ().isTable ()) { return false; }
264 if (!i.value ()["type"].isString ()) { return false; }
265 if (!i.value ()["name"].isString ()) { return false; }
266 if (!i.value ()["min"].isNumber ()) { return false; }
267 if (!i.value ()["max"].isNumber ()) { return false; }
269 int pn = i.key ().cast<int> ();
270 std::string type = i.value ()["type"].cast<std::string> ();
271 if (type == "input") {
272 if (!i.value ()["default"].isNumber ()) { return false; }
273 _ctrl_params.push_back (std::make_pair (false, pn));
275 else if (type == "output") {
276 _ctrl_params.push_back (std::make_pair (true, pn));
280 assert (pn == (int) _ctrl_params.size ());
282 //_param_desc[pn] = boost::shared_ptr<ParameterDescriptor> (new ParameterDescriptor());
283 luabridge::LuaRef lr = i.value ();
285 if (type == "input") {
286 _param_desc[pn].normal = lr["default"].cast<float> ();
288 _param_desc[pn].normal = lr["min"].cast<float> (); // output-port, no default
290 _param_desc[pn].lower = lr["min"].cast<float> ();
291 _param_desc[pn].upper = lr["max"].cast<float> ();
292 _param_desc[pn].toggled = lr["toggled"].isBoolean () && (lr["toggled"]).cast<bool> ();
293 _param_desc[pn].logarithmic = lr["logarithmic"].isBoolean () && (lr["logarithmic"]).cast<bool> ();
294 _param_desc[pn].integer_step = lr["integer"].isBoolean () && (lr["integer"]).cast<bool> ();
295 _param_desc[pn].sr_dependent = lr["ratemult"].isBoolean () && (lr["ratemult"]).cast<bool> ();
296 _param_desc[pn].enumeration = lr["enum"].isBoolean () && (lr["enum"]).cast<bool> ();
298 if (lr["bypass"].isBoolean () && (lr["bypass"]).cast<bool> ()) {
299 _designated_bypass_port = pn - 1; // lua table starts at 1.
302 if (lr["unit"].isString ()) {
303 std::string unit = lr["unit"].cast<std::string> ();
304 if (unit == "dB") { _param_desc[pn].unit = ParameterDescriptor::DB; }
305 else if (unit == "Hz") { _param_desc[pn].unit = ParameterDescriptor::HZ; }
306 else if (unit == "Midi Note") { _param_desc[pn].unit = ParameterDescriptor::MIDI_NOTE; }
308 _param_desc[pn].label = (lr["name"]).cast<std::string> ();
309 _param_desc[pn].scale_points = parse_scale_points (&lr);
311 luabridge::LuaRef doc = lr["doc"];
312 if (doc.isString ()) {
313 _param_doc[pn] = doc.cast<std::string> ();
317 assert (!(_param_desc[pn].toggled && _param_desc[pn].logarithmic));
322 _control_data = new float[parameter_count ()];
323 _shadow_data = new float[parameter_count ()];
325 for (uint32_t i = 0; i < parameter_count (); ++i) {
326 if (parameter_is_input (i)) {
327 _control_data[i] = _shadow_data[i] = default_value (i);
331 // expose ctrl-ports to global lua namespace
332 luabridge::push <float *> (L, _control_data);
333 lua_setglobal (L, "CtrlPorts");
335 return false; // no error
339 LuaProc::can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise)
341 // caller must hold process lock (no concurrent calls to interpreter
342 _output_configs.clear ();
344 lua_State* L = lua.getState ();
345 luabridge::LuaRef ioconfig = luabridge::getGlobal (L, "dsp_ioconfig");
347 luabridge::LuaRef *_iotable = NULL; // can't use reference :(
349 if (ioconfig.isFunction ()) {
351 luabridge::LuaRef iotable = ioconfig ();
352 if (iotable.isTable ()) {
353 _iotable = new luabridge::LuaRef (iotable);
355 } catch (luabridge::LuaException const& e) {
361 /* empty table as default */
362 luabridge::LuaRef iotable = luabridge::newTable(L);
363 _iotable = new luabridge::LuaRef (iotable);
366 // now we can reference it.
367 luabridge::LuaRef iotable (*_iotable);
370 if ((iotable).length () < 1) {
371 /* empty table as only config, to get default values */
372 luabridge::LuaRef ioconf = luabridge::newTable(L);
376 const int audio_in = in.n_audio ();
377 const int midi_in = in.n_midi ();
379 // preferred setting (provided by plugin_insert)
380 const int preferred_out = out.n_audio ();
381 const int preferred_midiout = out.n_midi ();
385 float penalty = 9999;
388 #define FOUNDCFG_PENALTY(in, out, p) { \
389 _output_configs.insert (out); \
392 midi_out = possible_midiout; \
394 imprecise->set (DataType::AUDIO, (in)); \
395 imprecise->set (DataType::MIDI, possible_midiin); \
397 _has_midi_input = (possible_midiin > 0); \
398 _has_midi_output = (possible_midiout > 0); \
404 #define FOUNDCFG_IMPRECISE(in, out) { \
405 const float p = fabsf ((float)(out) - preferred_out) * \
406 (((out) > preferred_out) ? 1.1 : 1) \
407 + fabsf ((float)possible_midiout - preferred_midiout) * \
408 ((possible_midiout - preferred_midiout) ? 0.6 : 0.5) \
409 + fabsf ((float)(in) - audio_in) * \
410 (((in) > audio_in) ? 275 : 250) \
411 + fabsf ((float)possible_midiin - midi_in) * \
412 ((possible_midiin - midi_in) ? 100 : 110); \
413 FOUNDCFG_PENALTY(in, out, p); \
416 #define FOUNDCFG(out) \
417 FOUNDCFG_IMPRECISE(audio_in, out)
419 #define ANYTHINGGOES \
420 _output_configs.insert (0);
422 #define UPTO(nch) { \
423 for (int n = 1; n < nch; ++n) { \
424 _output_configs.insert (n); \
432 for (luabridge::Iterator i (iotable); !i.isNil (); ++i) {
433 luabridge::LuaRef io (i.value ());
438 int possible_in = io["audio_in"].isNumber() ? io["audio_in"] : -1;
439 int possible_out = io["audio_out"].isNumber() ? io["audio_out"] : -1;
440 int possible_midiin = io["midi_in"].isNumber() ? io["midi_in"] : 0;
441 int possible_midiout = io["midi_out"].isNumber() ? io["midi_out"] : 0;
443 if (midi_in != possible_midiin && !imprecise) {
448 if ((possible_in == audio_in) && (possible_out == preferred_out)) {
449 /* Set penalty so low that this output configuration
450 * will trump any other one */
451 FOUNDCFG_PENALTY(audio_in, preferred_out, -1);
454 if (possible_out == 0 && possible_midiout == 0) {
455 /* skip configurations with no output at all */
459 if (possible_in == -1 || possible_in == -2) {
460 /* wildcard for input */
461 if (possible_out == possible_in) {
462 /* either both -1 or both -2 (invalid and
463 * interpreted as both -1): out must match in */
465 } else if (possible_out == -3 - possible_in) {
466 /* one is -1, the other is -2: any output configuration
467 * possible, pick what the insert prefers */
468 FOUNDCFG (preferred_out);
470 } else if (possible_out < -2) {
471 /* variable number of outputs up to -N,
472 * invalid if in == -2 but we accept it anyway */
473 FOUNDCFG (min (-possible_out, preferred_out));
476 /* exact number of outputs */
477 FOUNDCFG (possible_out);
481 if (possible_in < -2 || possible_in >= 0) {
482 /* specified number, exact or up to */
484 if (possible_in >= 0) {
485 /* configuration can only match possible_in */
486 desired_in = possible_in;
488 /* configuration can match up to -possible_in */
489 desired_in = min (-possible_in, audio_in);
491 if (!imprecise && audio_in != desired_in) {
492 /* skip that configuration, it cannot match
493 * the required audio input count, and we
494 * cannot ask for change via \imprecise */
495 } else if (possible_out == -1 || possible_out == -2) {
496 /* any output configuration possible
497 * out == -2 is invalid, interpreted as out == -1.
498 * Really imprecise only if desired_in != audio_in */
499 FOUNDCFG_IMPRECISE (desired_in, preferred_out);
501 } else if (possible_out < -2) {
502 /* variable number of outputs up to -N
503 * not specified if in > 0, but we accept it anyway.
504 * Really imprecise only if desired_in != audio_in */
505 FOUNDCFG_IMPRECISE (desired_in, min (-possible_out, preferred_out));
508 /* exact number of outputs
509 * Really imprecise only if desired_in != audio_in */
510 FOUNDCFG_IMPRECISE (desired_in, possible_out);
521 _selected_in = *imprecise;
526 out.set (DataType::MIDI, midi_out);
527 out.set (DataType::AUDIO, audio_out);
534 LuaProc::configure_io (ChanCount in, ChanCount out)
536 in.set (DataType::MIDI, _has_midi_input ? 1 : 0);
537 out.set (DataType::MIDI, _has_midi_output ? 1 : 0);
539 _info->n_inputs = _selected_in;
540 _info->n_outputs = _selected_out;
542 // configure the DSP if needed
543 if (in != _configured_in || out != _configured_out || !_configured) {
544 lua_State* L = lua.getState ();
545 luabridge::LuaRef lua_dsp_configure = luabridge::getGlobal (L, "dsp_configure");
546 if (lua_dsp_configure.type () == LUA_TFUNCTION) {
548 luabridge::LuaRef io = lua_dsp_configure (&in, &out);
550 ChanCount lin (_selected_in);
551 ChanCount lout (_selected_out);
553 if (io["audio_in"].type() == LUA_TNUMBER) {
554 const int c = io["audio_in"].cast<int> ();
556 lin.set (DataType::AUDIO, c);
559 if (io["audio_out"].type() == LUA_TNUMBER) {
560 const int c = io["audio_out"].cast<int> ();
562 lout.set (DataType::AUDIO, c);
565 if (io["midi_in"].type() == LUA_TNUMBER) {
566 const int c = io["midi_in"].cast<int> ();
568 lin.set (DataType::MIDI, c);
571 if (io["midi_out"].type() == LUA_TNUMBER) {
572 const int c = io["midi_out"].cast<int> ();
574 lout.set (DataType::MIDI, c);
577 _info->n_inputs = lin;
578 _info->n_outputs = lout;
581 } catch (luabridge::LuaException const& e) {
582 PBD::error << "LuaException: " << e.what () << "\n";
584 std::cerr << "LuaException: " << e.what () << "\n";
592 _configured_out = out;
598 LuaProc::connect_and_run (BufferSet& bufs,
599 framepos_t start, framepos_t end, double speed,
600 ChanMapping in, ChanMapping out,
601 pframes_t nframes, framecnt_t offset)
607 Plugin::connect_and_run (bufs, start, end, speed, in, out, nframes, offset);
609 // This is needed for ARDOUR::Session requests :(
610 if (! SessionEvent::has_per_thread_pool ()) {
612 snprintf (name, 64, "Proc-%p", this);
613 pthread_set_name (name);
614 SessionEvent::create_per_thread_pool (name, 64);
615 PBD::notify_event_loops_about_thread_creation (pthread_self(), name, 64);
618 uint32_t const n = parameter_count ();
619 for (uint32_t i = 0; i < n; ++i) {
620 if (parameter_is_control (i) && parameter_is_input (i)) {
621 _control_data[i] = _shadow_data[i];
625 #ifdef WITH_LUAPROC_STATS
626 int64_t t0 = g_get_monotonic_time ();
630 if (_lua_does_channelmapping) {
631 // run the DSP function
632 (*_lua_dsp)(&bufs, in, out, nframes, offset);
635 BufferSet& silent_bufs = _session.get_silent_buffers (ChanCount (DataType::AUDIO, 1));
636 BufferSet& scratch_bufs = _session.get_scratch_buffers (ChanCount (DataType::AUDIO, 1));
638 lua_State* L = lua.getState ();
639 luabridge::LuaRef in_map (luabridge::newTable (L));
640 luabridge::LuaRef out_map (luabridge::newTable (L));
642 const uint32_t audio_in = _configured_in.n_audio ();
643 const uint32_t audio_out = _configured_out.n_audio ();
644 const uint32_t midi_in = _configured_in.n_midi ();
646 for (uint32_t ap = 0; ap < audio_in; ++ap) {
648 const uint32_t buf_index = in.get(DataType::AUDIO, ap, &valid);
650 in_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
652 in_map[ap + 1] = silent_bufs.get_audio (0).data (offset);
655 for (uint32_t ap = 0; ap < audio_out; ++ap) {
657 const uint32_t buf_index = out.get(DataType::AUDIO, ap, &valid);
659 out_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
661 out_map[ap + 1] = scratch_bufs.get_audio (0).data (offset);
665 luabridge::LuaRef lua_midi_src_tbl (luabridge::newTable (L));
666 int e = 1; // > 1 port, we merge events (unsorted)
667 for (uint32_t mp = 0; mp < midi_in; ++mp) {
669 const uint32_t idx = in.get(DataType::MIDI, mp, &valid);
671 for (MidiBuffer::iterator m = bufs.get_midi(idx).begin();
672 m != bufs.get_midi(idx).end(); ++m, ++e) {
673 const Evoral::Event<framepos_t> ev(*m, false);
674 luabridge::LuaRef lua_midi_data (luabridge::newTable (L));
675 const uint8_t* data = ev.buffer();
676 for (uint32_t i = 0; i < ev.size(); ++i) {
677 lua_midi_data [i + 1] = data[i];
679 luabridge::LuaRef lua_midi_event (luabridge::newTable (L));
680 lua_midi_event["time"] = 1 + (*m).time();
681 lua_midi_event["data"] = lua_midi_data;
682 lua_midi_event["bytes"] = data;
683 lua_midi_event["size"] = ev.size();
684 lua_midi_src_tbl[e] = lua_midi_event;
689 if (_has_midi_input) {
690 // XXX TODO This needs a better solution than global namespace
691 luabridge::push (L, lua_midi_src_tbl);
692 lua_setglobal (L, "midiin");
695 luabridge::LuaRef lua_midi_sink_tbl (luabridge::newTable (L));
696 if (_has_midi_output) {
697 luabridge::push (L, lua_midi_sink_tbl);
698 lua_setglobal (L, "midiout");
701 // run the DSP function
702 (*_lua_dsp)(in_map, out_map, nframes);
704 // copy back midi events
705 if (_has_midi_output && lua_midi_sink_tbl.isTable ()) {
707 const uint32_t idx = out.get(DataType::MIDI, 0, &valid);
708 if (valid && bufs.count().n_midi() > idx) {
709 MidiBuffer& mbuf = bufs.get_midi(idx);
711 for (luabridge::Iterator i (lua_midi_sink_tbl); !i.isNil (); ++i) {
712 if (!i.key ().isNumber ()) { continue; }
713 if (!i.value ()["time"].isNumber ()) { continue; }
714 if (!i.value ()["data"].isTable ()) { continue; }
715 luabridge::LuaRef data_tbl (i.value ()["data"]);
716 framepos_t tme = i.value ()["time"];
717 if (tme < 1 || tme > nframes) { continue; }
720 for (luabridge::Iterator di (data_tbl); !di.isNil () && size < sizeof(data); ++di, ++size) {
721 data[size] = di.value ();
723 if (size > 0 && size < 64) {
724 mbuf.push_back(tme - 1, size, data);
731 } catch (luabridge::LuaException const& e) {
732 PBD::error << "LuaException: " << e.what () << "\n";
734 std::cerr << "LuaException: " << e.what () << "\n";
738 #ifdef WITH_LUAPROC_STATS
739 int64_t t1 = g_get_monotonic_time ();
742 lua.collect_garbage_step ();
743 #ifdef WITH_LUAPROC_STATS
745 int64_t t2 = g_get_monotonic_time ();
746 int64_t ela0 = t1 - t0;
747 int64_t ela1 = t2 - t1;
748 if (ela0 > _stats_max[0]) _stats_max[0] = ela0;
749 if (ela1 > _stats_max[1]) _stats_max[1] = ela1;
750 _stats_avg[0] += ela0;
751 _stats_avg[1] += ela1;
758 LuaProc::add_state (XMLNode* root) const
762 gchar* b64 = g_base64_encode ((const guchar*)_script.c_str (), _script.size ());
763 std::string b64s (b64);
765 XMLNode* script_node = new XMLNode (X_("script"));
766 script_node->set_property (X_("lua"), LUA_VERSION);
767 script_node->set_property (X_("origin"), _origin);
768 script_node->add_content (b64s);
769 root->add_child_nocopy (*script_node);
771 for (uint32_t i = 0; i < parameter_count(); ++i) {
772 if (parameter_is_input(i) && parameter_is_control(i)) {
773 child = new XMLNode("Port");
774 child->set_property("id", i);
775 child->set_property("value", _shadow_data[i]);
776 root->add_child_nocopy(*child);
782 LuaProc::set_script_from_state (const XMLNode& node)
785 if (node.name () != state_node_name ()) {
789 if ((child = node.child (X_("script"))) != 0) {
790 XMLProperty const* prop;
791 if ((prop = node.property ("origin")) != 0) {
792 _origin = prop->value();
794 for (XMLNodeList::const_iterator n = child->children ().begin (); n != child->children ().end (); ++n) {
795 if (!(*n)->is_content ()) { continue; }
797 guchar* buf = g_base64_decode ((*n)->content ().c_str (), &size);
798 _script = std::string ((const char*)buf, size);
800 if (load_script ()) {
801 PBD::error << _("Failed to load Lua script from session state.") << endmsg;
803 std::cerr << "Failed Lua Script: " << _script << std::endl;
810 if (_script.empty ()) {
811 PBD::error << _("Session State for LuaProcessor did not include a Lua script.") << endmsg;
815 PBD::error << _("Invalid/incompatible Lua script found for LuaProcessor.") << endmsg;
822 LuaProc::set_state (const XMLNode& node, int version)
824 #ifndef NO_PLUGIN_STATE
826 XMLNodeConstIterator iter;
830 if (_script.empty ()) {
831 if (set_script_from_state (node)) {
836 #ifndef NO_PLUGIN_STATE
837 if (node.name() != state_node_name()) {
838 error << _("Bad node sent to LuaProc::set_state") << endmsg;
842 nodes = node.children ("Port");
843 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
849 if (!child->get_property("id", port_id)) {
850 warning << _("LuaProc: port has no symbol, ignored") << endmsg;
854 if (!child->get_property("value", value)) {
855 warning << _("LuaProc: port has no value, ignored") << endmsg;
859 set_parameter (port_id, value);
863 return Plugin::set_state (node, version);
867 LuaProc::parameter_count () const
869 return _ctrl_params.size ();
873 LuaProc::default_value (uint32_t port)
875 if (_ctrl_params[port].first) {
879 int lp = _ctrl_params[port].second;
880 return _param_desc[lp].normal;
884 LuaProc::set_parameter (uint32_t port, float val)
886 assert (port < parameter_count ());
887 if (get_parameter (port) == val) {
890 _shadow_data[port] = val;
891 Plugin::set_parameter (port, val);
895 LuaProc::get_parameter (uint32_t port) const
897 if (parameter_is_input (port)) {
898 return _shadow_data[port];
900 return _control_data[port];
905 LuaProc::get_parameter_descriptor (uint32_t port, ParameterDescriptor& desc) const
907 assert (port <= parameter_count ());
908 int lp = _ctrl_params[port].second;
909 const ParameterDescriptor& d (_param_desc.find(lp)->second);
911 desc.lower = d.lower;
912 desc.upper = d.upper;
913 desc.normal = d.normal;
914 desc.toggled = d.toggled;
915 desc.logarithmic = d.logarithmic;
916 desc.integer_step = d.integer_step;
917 desc.sr_dependent = d.sr_dependent;
918 desc.enumeration = d.enumeration;
920 desc.label = d.label;
921 desc.scale_points = d.scale_points;
923 desc.update_steps ();
928 LuaProc::get_parameter_docs (uint32_t port) const {
929 assert (port <= parameter_count ());
930 int lp = _ctrl_params[port].second;
931 return _param_doc.find(lp)->second;
935 LuaProc::nth_parameter (uint32_t port, bool& ok) const
937 if (port < _ctrl_params.size ()) {
946 LuaProc::parameter_is_input (uint32_t port) const
948 assert (port < _ctrl_params.size ());
949 return (!_ctrl_params[port].first);
953 LuaProc::parameter_is_output (uint32_t port) const
955 assert (port < _ctrl_params.size ());
956 return (_ctrl_params[port].first);
959 std::set<Evoral::Parameter>
960 LuaProc::automatable () const
962 std::set<Evoral::Parameter> automatables;
963 for (uint32_t i = 0; i < _ctrl_params.size (); ++i) {
964 if (parameter_is_input (i)) {
965 automatables.insert (automatables.end (), Evoral::Parameter (PluginAutomation, 0, i));
972 LuaProc::describe_parameter (Evoral::Parameter param)
974 if (param.type () == PluginAutomation && param.id () < parameter_count ()) {
975 int lp = _ctrl_params[param.id ()].second;
976 return _param_desc[lp].label;
982 LuaProc::print_parameter (uint32_t param, char* buf, uint32_t len) const
985 if (param < parameter_count ()) {
986 snprintf (buf, len, "%.3f", get_parameter (param));
993 boost::shared_ptr<ScalePoints>
994 LuaProc::parse_scale_points (luabridge::LuaRef* lr)
996 if (!(*lr)["scalepoints"].isTable()) {
997 return boost::shared_ptr<ScalePoints> ();
1001 boost::shared_ptr<ScalePoints> rv = boost::shared_ptr<ScalePoints>(new ScalePoints());
1002 luabridge::LuaRef scalepoints ((*lr)["scalepoints"]);
1004 for (luabridge::Iterator i (scalepoints); !i.isNil (); ++i) {
1005 if (!i.key ().isString ()) { continue; }
1006 if (!i.value ().isNumber ()) { continue; }
1007 rv->insert(make_pair(i.key ().cast<std::string> (),
1008 i.value ().cast<float> ()));
1012 if (rv->size() > 0) {
1015 return boost::shared_ptr<ScalePoints> ();
1018 boost::shared_ptr<ScalePoints>
1019 LuaProc::get_scale_points (uint32_t port) const
1021 int lp = _ctrl_params[port].second;
1022 return _param_desc.find(lp)->second.scale_points;
1026 LuaProc::setup_lua_inline_gui (LuaState *lua_gui)
1028 lua_State* LG = lua_gui->getState ();
1029 LuaBindings::stddef (LG);
1030 LuaBindings::common (LG);
1031 LuaBindings::dsp (LG);
1032 LuaBindings::osc (LG);
1034 lua_gui->Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
1035 lua_gui->do_command ("function ardour () end");
1036 lua_gui->do_command (_script);
1038 // TODO think: use a weak-pointer here ?
1039 // (the GUI itself uses a shared ptr to this plugin, so we should be good)
1040 luabridge::getGlobalNamespace (LG)
1041 .beginNamespace ("Ardour")
1042 .beginClass <LuaProc> ("LuaProc")
1043 .addFunction ("shmem", &LuaProc::instance_shm)
1044 .addFunction ("table", &LuaProc::instance_ref)
1048 luabridge::push <LuaProc *> (LG, this);
1049 lua_setglobal (LG, "self");
1051 luabridge::push <float *> (LG, _control_data);
1052 lua_setglobal (LG, "CtrlPorts");
1054 ////////////////////////////////////////////////////////////////////////////////
1056 #include "ardour/search_paths.h"
1060 LuaProc::preset_name_to_uri (const std::string& name) const
1062 std::string uri ("urn:lua:");
1066 sha1_write (&s, (const uint8_t *) name.c_str(), name.size ());
1067 sha1_write (&s, (const uint8_t *) _script.c_str(), _script.size ());
1068 sha1_result_hash (&s, hash);
1073 LuaProc::presets_file () const
1075 return string_compose ("lua-%1", _info->unique_id);
1079 LuaProc::presets_tree () const
1081 XMLTree* t = new XMLTree;
1082 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1084 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
1085 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
1086 error << _("Unable to create LuaProc presets directory") << endmsg;
1090 p = Glib::build_filename (p, presets_file ());
1092 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
1093 t->set_root (new XMLNode (X_("LuaPresets")));
1097 t->set_filename (p);
1106 LuaProc::load_preset (PresetRecord r)
1108 boost::shared_ptr<XMLTree> t (presets_tree ());
1113 XMLNode* root = t->root ();
1114 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1116 if (!(*i)->get_property (X_("label"), str)) {
1119 if (str != r.label) {
1123 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
1124 if ((*j)->name() == X_("Parameter")) {
1127 if (!(*j)->get_property (X_("index"), index) ||
1128 !(*j)->get_property (X_("value"), value)) {
1131 set_parameter (index, value);
1132 PresetPortSetValue (index, value); /* EMIT SIGNAL */
1135 return Plugin::load_preset(r);
1141 LuaProc::do_save_preset (std::string name) {
1143 boost::shared_ptr<XMLTree> t (presets_tree ());
1148 // prevent dups -- just in case
1149 t->root()->remove_nodes_and_delete (X_("label"), name);
1151 std::string uri (preset_name_to_uri (name));
1153 XMLNode* p = new XMLNode (X_("Preset"));
1154 p->set_property (X_("uri"), uri);
1155 p->set_property (X_("label"), name);
1157 for (uint32_t i = 0; i < parameter_count(); ++i) {
1158 if (parameter_is_input (i)) {
1159 XMLNode* c = new XMLNode (X_("Parameter"));
1160 c->set_property (X_("index"), i);
1161 c->set_property (X_("value"), get_parameter (i));
1162 p->add_child_nocopy (*c);
1165 t->root()->add_child_nocopy (*p);
1167 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1168 f = Glib::build_filename (f, presets_file ());
1175 LuaProc::do_remove_preset (std::string name)
1177 boost::shared_ptr<XMLTree> t (presets_tree ());
1181 t->root()->remove_nodes_and_delete (X_("label"), name);
1182 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1183 f = Glib::build_filename (f, presets_file ());
1188 LuaProc::find_presets ()
1190 boost::shared_ptr<XMLTree> t (presets_tree ());
1192 XMLNode* root = t->root ();
1193 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1197 if (!(*i)->get_property (X_("uri"), uri) || !(*i)->get_property (X_("label"), label)) {
1201 PresetRecord r (uri, label, true);
1202 _presets.insert (make_pair (r.uri, r));
1207 ////////////////////////////////////////////////////////////////////////////////
1209 LuaPluginInfo::LuaPluginInfo (LuaScriptInfoPtr lsi) {
1210 if (lsi->type != LuaScriptInfo::DSP) {
1211 throw failed_constructor ();
1216 creator = lsi->author;
1217 category = lsi->category;
1218 unique_id = lsi->unique_id;
1220 n_inputs.set (DataType::AUDIO, 1);
1221 n_outputs.set (DataType::AUDIO, 1);
1224 _is_instrument = category == "Instrument";
1228 LuaPluginInfo::load (Session& session)
1230 std::string script = "";
1231 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
1232 return PluginPtr ();
1236 script = Glib::file_get_contents (path);
1237 } catch (Glib::FileError err) {
1238 return PluginPtr ();
1241 if (script.empty ()) {
1242 return PluginPtr ();
1246 LuaProc* lp = new LuaProc (session.engine (), session, script);
1247 lp->set_origin (path);
1248 PluginPtr plugin (lp);
1250 } catch (failed_constructor& err) {
1253 return PluginPtr ();
1256 std::vector<Plugin::PresetRecord>
1257 LuaPluginInfo::get_presets (bool /*user_only*/) const
1259 std::vector<Plugin::PresetRecord> p;
1260 XMLTree* t = new XMLTree;
1261 std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("lua-%1", unique_id));
1262 if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
1263 t->set_filename (pf);
1265 XMLNode* root = t->root ();
1266 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1267 XMLProperty const * uri = (*i)->property (X_("uri"));
1268 XMLProperty const * label = (*i)->property (X_("label"));
1269 p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));