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/locale_guard.h"
26 #include "pbd/pthread_utils.h"
28 #include "ardour/audio_buffer.h"
29 #include "ardour/buffer_set.h"
30 #include "ardour/filesystem_paths.h"
31 #include "ardour/luabindings.h"
32 #include "ardour/luaproc.h"
33 #include "ardour/luascripting.h"
34 #include "ardour/midi_buffer.h"
35 #include "ardour/plugin.h"
36 #include "ardour/session.h"
38 #include "LuaBridge/LuaBridge.h"
42 using namespace ARDOUR;
45 LuaProc::LuaProc (AudioEngine& engine,
47 const std::string &script)
48 : Plugin (engine, session)
49 , _mempool ("LuaProc", 3145728)
51 , lua (lua_newstate (&PBD::TLSF::lalloc, &_mempool))
52 #elif defined USE_MALLOC
55 , lua (lua_newstate (&PBD::ReallocPool::lalloc, &_mempool))
59 , _lua_does_channelmapping (false)
60 , _lua_has_inline_display (false)
61 , _designated_bypass_port (UINT32_MAX)
65 , _has_midi_input (false)
66 , _has_midi_output (false)
70 /* when loading a session, or pasing a processor,
71 * the script is set during set_state();
73 if (!_script.empty () && load_script ()) {
74 throw failed_constructor ();
78 LuaProc::LuaProc (const LuaProc &other)
80 , _mempool ("LuaProc", 3145728)
82 , lua (lua_newstate (&PBD::TLSF::lalloc, &_mempool))
83 #elif defined USE_MALLOC
86 , lua (lua_newstate (&PBD::ReallocPool::lalloc, &_mempool))
89 , _script (other.script ())
90 , _origin (other._origin)
91 , _lua_does_channelmapping (false)
92 , _lua_has_inline_display (false)
93 , _designated_bypass_port (UINT32_MAX)
97 , _has_midi_input (false)
98 , _has_midi_output (false)
102 if (load_script ()) {
103 throw failed_constructor ();
106 for (uint32_t i = 0; i < parameter_count (); ++i) {
107 _control_data[i] = other._shadow_data[i];
108 _shadow_data[i] = other._shadow_data[i];
112 LuaProc::~LuaProc () {
113 #ifdef WITH_LUAPROC_STATS
114 if (_info && _stats_cnt > 0) {
115 printf ("LuaProc: '%s' run() avg: %.3f max: %.3f [ms]\n",
116 _info->name.c_str (),
117 0.0001f * _stats_avg[0] / (float) _stats_cnt,
118 0.0001f * _stats_max[0]);
119 printf ("LuaProc: '%s' gc() avg: %.3f max: %.3f [ms]\n",
120 _info->name.c_str (),
121 0.0001f * _stats_avg[1] / (float) _stats_cnt,
122 0.0001f * _stats_max[1]);
125 lua.do_command ("collectgarbage();");
127 delete [] _control_data;
128 delete [] _shadow_data;
134 #ifdef WITH_LUAPROC_STATS
135 _stats_avg[0] = _stats_avg[1] = _stats_max[0] = _stats_max[1] = _stats_cnt = 0;
139 lua.Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
140 // register session object
141 lua_State* L = lua.getState ();
142 LuaBindings::stddef (L);
143 LuaBindings::common (L);
144 LuaBindings::dsp (L);
146 luabridge::getGlobalNamespace (L)
147 .beginNamespace ("Ardour")
148 .deriveClass <LuaProc, PBD::StatefulDestructible> ("LuaProc")
149 .addFunction ("queue_draw", &LuaProc::queue_draw)
150 .addFunction ("shmem", &LuaProc::instance_shm)
151 .addFunction ("table", &LuaProc::instance_ref)
152 .addFunction ("route", &LuaProc::route)
153 .addFunction ("unique_id", &LuaProc::unique_id)
154 .addFunction ("name", &LuaProc::name)
158 // add session to global lua namespace
159 luabridge::push <Session *> (L, &_session);
160 lua_setglobal (L, "Session");
163 luabridge::push <LuaProc *> (L, this);
164 lua_setglobal (L, "self");
167 lua.do_command ("io = nil os = nil loadfile = nil require = nil dofile = nil package = nil debug = nil");
169 lua.do_command ("for n in pairs(_G) do print(n) end print ('----')"); // print global env
171 lua.do_command ("function ardour () end");
174 boost::weak_ptr<Route>
175 LuaProc::route () const
178 return boost::weak_ptr<Route>();
180 return static_cast<Route*>(_owner)->weakroute ();
184 LuaProc::lua_print (std::string s) {
185 std::cout <<"LuaProc: " << s << "\n";
186 PBD::error << "LuaProc: " << s << "\n";
190 LuaProc::load_script ()
192 assert (!_lua_dsp); // don't allow to re-initialize
193 LuaPluginInfoPtr lpi;
195 // TODO: refine APIs; function arguments..
196 // - perform channel-map in ardour (silent/scratch buffers) ?
197 // - control-port API (explicit get/set functions ??)
198 // - latency reporting (global var? ctrl-port? set-function ?)
199 // - MIDI -> sparse table of events
200 // { [sample] => { Event }, .. }
201 // or { { sample, Event }, .. }
204 LuaScriptInfoPtr lsi = LuaScripting::script_info (_script);
205 lpi = LuaPluginInfoPtr (new LuaPluginInfo (lsi));
208 _mempool.set_name ("LuaProc: " + lsi->name);
209 _docs = lsi->description;
210 } catch (failed_constructor& err) {
214 lua_State* L = lua.getState ();
215 lua.do_command (_script);
217 // check if script has a DSP callback
218 luabridge::LuaRef lua_dsp_run = luabridge::getGlobal (L, "dsp_run");
219 luabridge::LuaRef lua_dsp_map = luabridge::getGlobal (L, "dsp_runmap");
221 if ((lua_dsp_run.type () != LUA_TFUNCTION) == (lua_dsp_map.type () != LUA_TFUNCTION)) {
225 if (lua_dsp_run.type () == LUA_TFUNCTION) {
226 _lua_dsp = new luabridge::LuaRef (lua_dsp_run);
228 else if (lua_dsp_map.type () == LUA_TFUNCTION) {
229 _lua_dsp = new luabridge::LuaRef (lua_dsp_map);
230 _lua_does_channelmapping = true;
236 // initialize the DSP if needed
237 luabridge::LuaRef lua_dsp_init = luabridge::getGlobal (L, "dsp_init");
238 if (lua_dsp_init.type () == LUA_TFUNCTION) {
240 lua_dsp_init (_session.nominal_frame_rate ());
241 } catch (luabridge::LuaException const& e) {
246 _ctrl_params.clear ();
248 luabridge::LuaRef lua_render = luabridge::getGlobal (L, "render_inline");
249 if (lua_render.isFunction ()) {
250 _lua_has_inline_display = true;
253 luabridge::LuaRef lua_params = luabridge::getGlobal (L, "dsp_params");
254 if (lua_params.isFunction ()) {
256 // call function // add try {} catch (luabridge::LuaException const& e)
257 luabridge::LuaRef params = lua_params ();
259 if (params.isTable ()) {
261 for (luabridge::Iterator i (params); !i.isNil (); ++i) {
263 if (!i.key ().isNumber ()) { return false; }
264 if (!i.value ().isTable ()) { return false; }
265 if (!i.value ()["type"].isString ()) { return false; }
266 if (!i.value ()["name"].isString ()) { return false; }
267 if (!i.value ()["min"].isNumber ()) { return false; }
268 if (!i.value ()["max"].isNumber ()) { return false; }
270 int pn = i.key ().cast<int> ();
271 std::string type = i.value ()["type"].cast<std::string> ();
272 if (type == "input") {
273 if (!i.value ()["default"].isNumber ()) { return false; }
274 _ctrl_params.push_back (std::make_pair (false, pn));
276 else if (type == "output") {
277 _ctrl_params.push_back (std::make_pair (true, pn));
281 assert (pn == (int) _ctrl_params.size ());
283 //_param_desc[pn] = boost::shared_ptr<ParameterDescriptor> (new ParameterDescriptor());
284 luabridge::LuaRef lr = i.value ();
286 if (type == "input") {
287 _param_desc[pn].normal = lr["default"].cast<float> ();
289 _param_desc[pn].normal = lr["min"].cast<float> (); // output-port, no default
291 _param_desc[pn].lower = lr["min"].cast<float> ();
292 _param_desc[pn].upper = lr["max"].cast<float> ();
293 _param_desc[pn].toggled = lr["toggled"].isBoolean () && (lr["toggled"]).cast<bool> ();
294 _param_desc[pn].logarithmic = lr["logarithmic"].isBoolean () && (lr["logarithmic"]).cast<bool> ();
295 _param_desc[pn].integer_step = lr["integer"].isBoolean () && (lr["integer"]).cast<bool> ();
296 _param_desc[pn].sr_dependent = lr["ratemult"].isBoolean () && (lr["ratemult"]).cast<bool> ();
297 _param_desc[pn].enumeration = lr["enum"].isBoolean () && (lr["enum"]).cast<bool> ();
299 if (lr["bypass"].isBoolean () && (lr["bypass"]).cast<bool> ()) {
300 _designated_bypass_port = pn - 1; // lua table starts at 1.
303 if (lr["unit"].isString ()) {
304 std::string unit = lr["unit"].cast<std::string> ();
305 if (unit == "dB") { _param_desc[pn].unit = ParameterDescriptor::DB; }
306 else if (unit == "Hz") { _param_desc[pn].unit = ParameterDescriptor::HZ; }
307 else if (unit == "Midi Note") { _param_desc[pn].unit = ParameterDescriptor::MIDI_NOTE; }
309 _param_desc[pn].label = (lr["name"]).cast<std::string> ();
310 _param_desc[pn].scale_points = parse_scale_points (&lr);
312 luabridge::LuaRef doc = lr["doc"];
313 if (doc.isString ()) {
314 _param_doc[pn] = doc.cast<std::string> ();
318 assert (!(_param_desc[pn].toggled && _param_desc[pn].logarithmic));
323 _control_data = new float[parameter_count ()];
324 _shadow_data = new float[parameter_count ()];
326 for (uint32_t i = 0; i < parameter_count (); ++i) {
327 if (parameter_is_input (i)) {
328 _control_data[i] = _shadow_data[i] = default_value (i);
332 // expose ctrl-ports to global lua namespace
333 luabridge::push <float *> (L, _control_data);
334 lua_setglobal (L, "CtrlPorts");
336 return false; // no error
340 LuaProc::can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise)
342 // caller must hold process lock (no concurrent calls to interpreter
343 _output_configs.clear ();
345 lua_State* L = lua.getState ();
346 luabridge::LuaRef ioconfig = luabridge::getGlobal (L, "dsp_ioconfig");
348 luabridge::LuaRef *_iotable = NULL; // can't use reference :(
350 if (ioconfig.isFunction ()) {
352 luabridge::LuaRef iotable = ioconfig ();
353 if (iotable.isTable ()) {
354 _iotable = new luabridge::LuaRef (iotable);
356 } catch (luabridge::LuaException const& e) {
362 /* empty table as default */
363 luabridge::LuaRef iotable = luabridge::newTable(L);
364 _iotable = new luabridge::LuaRef (iotable);
367 // now we can reference it.
368 luabridge::LuaRef iotable (*_iotable);
371 if ((iotable).length () < 1) {
372 /* empty table as only config, to get default values */
373 luabridge::LuaRef ioconf = luabridge::newTable(L);
377 const int audio_in = in.n_audio ();
378 const int midi_in = in.n_midi ();
380 // preferred setting (provided by plugin_insert)
381 const int preferred_out = out.n_audio ();
382 const int preferred_midiout = out.n_midi ();
386 float penalty = 9999;
389 #define FOUNDCFG_PENALTY(in, out, p) { \
390 _output_configs.insert (out); \
393 midi_out = possible_midiout; \
395 imprecise->set (DataType::AUDIO, (in)); \
396 imprecise->set (DataType::MIDI, possible_midiin); \
398 _has_midi_input = (possible_midiin > 0); \
399 _has_midi_output = (possible_midiout > 0); \
405 #define FOUNDCFG_IMPRECISE(in, out) { \
406 const float p = fabsf ((float)(out) - preferred_out) * \
407 (((out) > preferred_out) ? 1.1 : 1) \
408 + fabsf ((float)possible_midiout - preferred_midiout) * \
409 ((possible_midiout - preferred_midiout) ? 0.6 : 0.5) \
410 + fabsf ((float)(in) - audio_in) * \
411 (((in) > audio_in) ? 275 : 250) \
412 + fabsf ((float)possible_midiin - midi_in) * \
413 ((possible_midiin - midi_in) ? 100 : 110); \
414 FOUNDCFG_PENALTY(in, out, p); \
417 #define FOUNDCFG(out) \
418 FOUNDCFG_IMPRECISE(audio_in, out)
420 #define ANYTHINGGOES \
421 _output_configs.insert (0);
423 #define UPTO(nch) { \
424 for (int n = 1; n < nch; ++n) { \
425 _output_configs.insert (n); \
433 for (luabridge::Iterator i (iotable); !i.isNil (); ++i) {
434 luabridge::LuaRef io (i.value ());
439 int possible_in = io["audio_in"].isNumber() ? io["audio_in"] : -1;
440 int possible_out = io["audio_out"].isNumber() ? io["audio_out"] : -1;
441 int possible_midiin = io["midi_in"].isNumber() ? io["midi_in"] : 0;
442 int possible_midiout = io["midi_out"].isNumber() ? io["midi_out"] : 0;
444 if (midi_in != possible_midiin && !imprecise) {
449 if ((possible_in == audio_in) && (possible_out == preferred_out)) {
450 /* Set penalty so low that this output configuration
451 * will trump any other one */
452 FOUNDCFG_PENALTY(audio_in, preferred_out, -1);
455 if (possible_out == 0 && possible_midiout == 0) {
456 /* skip configurations with no output at all */
460 if (possible_in == -1 || possible_in == -2) {
461 /* wildcard for input */
462 if (possible_out == possible_in) {
463 /* either both -1 or both -2 (invalid and
464 * interpreted as both -1): out must match in */
466 } else if (possible_out == -3 - possible_in) {
467 /* one is -1, the other is -2: any output configuration
468 * possible, pick what the insert prefers */
469 FOUNDCFG (preferred_out);
471 } else if (possible_out < -2) {
472 /* variable number of outputs up to -N,
473 * invalid if in == -2 but we accept it anyway */
474 FOUNDCFG (min (-possible_out, preferred_out));
477 /* exact number of outputs */
478 FOUNDCFG (possible_out);
482 if (possible_in < -2 || possible_in >= 0) {
483 /* specified number, exact or up to */
485 if (possible_in >= 0) {
486 /* configuration can only match possible_in */
487 desired_in = possible_in;
489 /* configuration can match up to -possible_in */
490 desired_in = min (-possible_in, audio_in);
492 if (!imprecise && audio_in != desired_in) {
493 /* skip that configuration, it cannot match
494 * the required audio input count, and we
495 * cannot ask for change via \imprecise */
496 } else if (possible_out == -1 || possible_out == -2) {
497 /* any output configuration possible
498 * out == -2 is invalid, interpreted as out == -1.
499 * Really imprecise only if desired_in != audio_in */
500 FOUNDCFG_IMPRECISE (desired_in, preferred_out);
502 } else if (possible_out < -2) {
503 /* variable number of outputs up to -N
504 * not specified if in > 0, but we accept it anyway.
505 * Really imprecise only if desired_in != audio_in */
506 FOUNDCFG_IMPRECISE (desired_in, min (-possible_out, preferred_out));
509 /* exact number of outputs
510 * Really imprecise only if desired_in != audio_in */
511 FOUNDCFG_IMPRECISE (desired_in, possible_out);
522 _selected_in = *imprecise;
527 out.set (DataType::MIDI, midi_out);
528 out.set (DataType::AUDIO, audio_out);
535 LuaProc::configure_io (ChanCount in, ChanCount out)
537 in.set (DataType::MIDI, _has_midi_input ? 1 : 0);
538 out.set (DataType::MIDI, _has_midi_output ? 1 : 0);
540 _info->n_inputs = _selected_in;
541 _info->n_outputs = _selected_out;
543 // configure the DSP if needed
544 if (in != _configured_in || out != _configured_out || !_configured) {
545 lua_State* L = lua.getState ();
546 luabridge::LuaRef lua_dsp_configure = luabridge::getGlobal (L, "dsp_configure");
547 if (lua_dsp_configure.type () == LUA_TFUNCTION) {
549 luabridge::LuaRef io = lua_dsp_configure (&in, &out);
551 ChanCount lin (_selected_in);
552 ChanCount lout (_selected_out);
554 if (io["audio_in"].type() == LUA_TNUMBER) {
555 const int c = io["audio_in"].cast<int> ();
557 lin.set (DataType::AUDIO, c);
560 if (io["audio_out"].type() == LUA_TNUMBER) {
561 const int c = io["audio_out"].cast<int> ();
563 lout.set (DataType::AUDIO, c);
566 if (io["midi_in"].type() == LUA_TNUMBER) {
567 const int c = io["midi_in"].cast<int> ();
569 lin.set (DataType::MIDI, c);
572 if (io["midi_out"].type() == LUA_TNUMBER) {
573 const int c = io["midi_out"].cast<int> ();
575 lout.set (DataType::MIDI, c);
578 _info->n_inputs = lin;
579 _info->n_outputs = lout;
582 } catch (luabridge::LuaException const& e) {
583 PBD::error << "LuaException: " << e.what () << "\n";
585 std::cerr << "LuaException: " << e.what () << "\n";
593 _configured_out = out;
599 LuaProc::connect_and_run (BufferSet& bufs,
600 framepos_t start, framepos_t end, double speed,
601 ChanMapping in, ChanMapping out,
602 pframes_t nframes, framecnt_t offset)
608 Plugin::connect_and_run (bufs, start, end, speed, in, out, nframes, offset);
610 // This is needed for ARDOUR::Session requests :(
611 if (! SessionEvent::has_per_thread_pool ()) {
613 snprintf (name, 64, "Proc-%p", this);
614 pthread_set_name (name);
615 SessionEvent::create_per_thread_pool (name, 64);
616 PBD::notify_event_loops_about_thread_creation (pthread_self(), name, 64);
619 uint32_t const n = parameter_count ();
620 for (uint32_t i = 0; i < n; ++i) {
621 if (parameter_is_control (i) && parameter_is_input (i)) {
622 _control_data[i] = _shadow_data[i];
626 #ifdef WITH_LUAPROC_STATS
627 int64_t t0 = g_get_monotonic_time ();
631 if (_lua_does_channelmapping) {
632 // run the DSP function
633 (*_lua_dsp)(&bufs, in, out, nframes, offset);
636 BufferSet& silent_bufs = _session.get_silent_buffers (ChanCount (DataType::AUDIO, 1));
637 BufferSet& scratch_bufs = _session.get_scratch_buffers (ChanCount (DataType::AUDIO, 1));
639 lua_State* L = lua.getState ();
640 luabridge::LuaRef in_map (luabridge::newTable (L));
641 luabridge::LuaRef out_map (luabridge::newTable (L));
643 const uint32_t audio_in = _configured_in.n_audio ();
644 const uint32_t audio_out = _configured_out.n_audio ();
645 const uint32_t midi_in = _configured_in.n_midi ();
647 for (uint32_t ap = 0; ap < audio_in; ++ap) {
649 const uint32_t buf_index = in.get(DataType::AUDIO, ap, &valid);
651 in_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
653 in_map[ap + 1] = silent_bufs.get_audio (0).data (offset);
656 for (uint32_t ap = 0; ap < audio_out; ++ap) {
658 const uint32_t buf_index = out.get(DataType::AUDIO, ap, &valid);
660 out_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
662 out_map[ap + 1] = scratch_bufs.get_audio (0).data (offset);
666 luabridge::LuaRef lua_midi_src_tbl (luabridge::newTable (L));
667 int e = 1; // > 1 port, we merge events (unsorted)
668 for (uint32_t mp = 0; mp < midi_in; ++mp) {
670 const uint32_t idx = in.get(DataType::MIDI, mp, &valid);
672 for (MidiBuffer::iterator m = bufs.get_midi(idx).begin();
673 m != bufs.get_midi(idx).end(); ++m, ++e) {
674 const Evoral::Event<framepos_t> ev(*m, false);
675 luabridge::LuaRef lua_midi_data (luabridge::newTable (L));
676 const uint8_t* data = ev.buffer();
677 for (uint32_t i = 0; i < ev.size(); ++i) {
678 lua_midi_data [i + 1] = data[i];
680 luabridge::LuaRef lua_midi_event (luabridge::newTable (L));
681 lua_midi_event["time"] = 1 + (*m).time();
682 lua_midi_event["data"] = lua_midi_data;
683 lua_midi_event["bytes"] = data;
684 lua_midi_event["size"] = ev.size();
685 lua_midi_src_tbl[e] = lua_midi_event;
690 if (_has_midi_input) {
691 // XXX TODO This needs a better solution than global namespace
692 luabridge::push (L, lua_midi_src_tbl);
693 lua_setglobal (L, "midiin");
696 luabridge::LuaRef lua_midi_sink_tbl (luabridge::newTable (L));
697 if (_has_midi_output) {
698 luabridge::push (L, lua_midi_sink_tbl);
699 lua_setglobal (L, "midiout");
702 // run the DSP function
703 (*_lua_dsp)(in_map, out_map, nframes);
705 // copy back midi events
706 if (_has_midi_output && lua_midi_sink_tbl.isTable ()) {
708 const uint32_t idx = out.get(DataType::MIDI, 0, &valid);
709 if (valid && bufs.count().n_midi() > idx) {
710 MidiBuffer& mbuf = bufs.get_midi(idx);
712 for (luabridge::Iterator i (lua_midi_sink_tbl); !i.isNil (); ++i) {
713 if (!i.key ().isNumber ()) { continue; }
714 if (!i.value ()["time"].isNumber ()) { continue; }
715 if (!i.value ()["data"].isTable ()) { continue; }
716 luabridge::LuaRef data_tbl (i.value ()["data"]);
717 framepos_t tme = i.value ()["time"];
718 if (tme < 1 || tme > nframes) { continue; }
721 for (luabridge::Iterator di (data_tbl); !di.isNil () && size < sizeof(data); ++di, ++size) {
722 data[size] = di.value ();
724 if (size > 0 && size < 64) {
725 mbuf.push_back(tme - 1, size, data);
732 } catch (luabridge::LuaException const& e) {
733 PBD::error << "LuaException: " << e.what () << "\n";
735 std::cerr << "LuaException: " << e.what () << "\n";
739 #ifdef WITH_LUAPROC_STATS
740 int64_t t1 = g_get_monotonic_time ();
743 lua.collect_garbage_step ();
744 #ifdef WITH_LUAPROC_STATS
746 int64_t t2 = g_get_monotonic_time ();
747 int64_t ela0 = t1 - t0;
748 int64_t ela1 = t2 - t1;
749 if (ela0 > _stats_max[0]) _stats_max[0] = ela0;
750 if (ela1 > _stats_max[1]) _stats_max[1] = ela1;
751 _stats_avg[0] += ela0;
752 _stats_avg[1] += ela1;
759 LuaProc::add_state (XMLNode* root) const
765 gchar* b64 = g_base64_encode ((const guchar*)_script.c_str (), _script.size ());
766 std::string b64s (b64);
768 XMLNode* script_node = new XMLNode (X_("script"));
769 script_node->add_property (X_("lua"), LUA_VERSION);
770 script_node->add_property (X_("origin"), _origin);
771 script_node->add_content (b64s);
772 root->add_child_nocopy (*script_node);
774 for (uint32_t i = 0; i < parameter_count(); ++i) {
775 if (parameter_is_input(i) && parameter_is_control(i)) {
776 child = new XMLNode("Port");
777 snprintf(buf, sizeof(buf), "%u", i);
778 child->add_property("id", std::string(buf));
779 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
780 child->add_property("value", std::string(buf));
781 root->add_child_nocopy(*child);
787 LuaProc::set_script_from_state (const XMLNode& node)
790 if (node.name () != state_node_name ()) {
794 if ((child = node.child (X_("script"))) != 0) {
795 XMLProperty const* prop;
796 if ((prop = node.property ("origin")) != 0) {
797 _origin = prop->value();
799 for (XMLNodeList::const_iterator n = child->children ().begin (); n != child->children ().end (); ++n) {
800 if (!(*n)->is_content ()) { continue; }
802 guchar* buf = g_base64_decode ((*n)->content ().c_str (), &size);
803 _script = std::string ((const char*)buf, size);
805 if (load_script ()) {
806 PBD::error << _("Failed to load Lua script from session state.") << endmsg;
808 std::cerr << "Failed Lua Script: " << _script << std::endl;
815 if (_script.empty ()) {
816 PBD::error << _("Session State for LuaProcessor did not include a Lua script.") << endmsg;
820 PBD::error << _("Invalid/incompatible Lua script found for LuaProcessor.") << endmsg;
827 LuaProc::set_state (const XMLNode& node, int version)
829 #ifndef NO_PLUGIN_STATE
831 XMLProperty const * prop;
832 XMLNodeConstIterator iter;
840 if (_script.empty ()) {
841 if (set_script_from_state (node)) {
846 #ifndef NO_PLUGIN_STATE
847 if (node.name() != state_node_name()) {
848 error << _("Bad node sent to LuaProc::set_state") << endmsg;
852 nodes = node.children ("Port");
853 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
855 if ((prop = child->property("id")) != 0) {
856 port = prop->value().c_str();
858 warning << _("LuaProc: port has no symbol, ignored") << endmsg;
861 if ((prop = child->property("value")) != 0) {
862 value = prop->value().c_str();
864 warning << _("LuaProc: port has no value, ignored") << endmsg;
867 sscanf (port, "%" PRIu32, &port_id);
868 set_parameter (port_id, atof(value));
872 return Plugin::set_state (node, version);
876 LuaProc::parameter_count () const
878 return _ctrl_params.size ();
882 LuaProc::default_value (uint32_t port)
884 if (_ctrl_params[port].first) {
888 int lp = _ctrl_params[port].second;
889 return _param_desc[lp].normal;
893 LuaProc::set_parameter (uint32_t port, float val)
895 assert (port < parameter_count ());
896 if (get_parameter (port) == val) {
899 _shadow_data[port] = val;
900 Plugin::set_parameter (port, val);
904 LuaProc::get_parameter (uint32_t port) const
906 if (parameter_is_input (port)) {
907 return _shadow_data[port];
909 return _control_data[port];
914 LuaProc::get_parameter_descriptor (uint32_t port, ParameterDescriptor& desc) const
916 assert (port <= parameter_count ());
917 int lp = _ctrl_params[port].second;
918 const ParameterDescriptor& d (_param_desc.find(lp)->second);
920 desc.lower = d.lower;
921 desc.upper = d.upper;
922 desc.normal = d.normal;
923 desc.toggled = d.toggled;
924 desc.logarithmic = d.logarithmic;
925 desc.integer_step = d.integer_step;
926 desc.sr_dependent = d.sr_dependent;
927 desc.enumeration = d.enumeration;
929 desc.label = d.label;
930 desc.scale_points = d.scale_points;
932 desc.update_steps ();
937 LuaProc::get_parameter_docs (uint32_t port) const {
938 assert (port <= parameter_count ());
939 int lp = _ctrl_params[port].second;
940 return _param_doc.find(lp)->second;
944 LuaProc::nth_parameter (uint32_t port, bool& ok) const
946 if (port < _ctrl_params.size ()) {
955 LuaProc::parameter_is_input (uint32_t port) const
957 assert (port < _ctrl_params.size ());
958 return (!_ctrl_params[port].first);
962 LuaProc::parameter_is_output (uint32_t port) const
964 assert (port < _ctrl_params.size ());
965 return (_ctrl_params[port].first);
968 std::set<Evoral::Parameter>
969 LuaProc::automatable () const
971 std::set<Evoral::Parameter> automatables;
972 for (uint32_t i = 0; i < _ctrl_params.size (); ++i) {
973 if (parameter_is_input (i)) {
974 automatables.insert (automatables.end (), Evoral::Parameter (PluginAutomation, 0, i));
981 LuaProc::describe_parameter (Evoral::Parameter param)
983 if (param.type () == PluginAutomation && param.id () < parameter_count ()) {
984 int lp = _ctrl_params[param.id ()].second;
985 return _param_desc[lp].label;
991 LuaProc::print_parameter (uint32_t param, char* buf, uint32_t len) const
994 if (param < parameter_count ()) {
995 snprintf (buf, len, "%.3f", get_parameter (param));
1002 boost::shared_ptr<ScalePoints>
1003 LuaProc::parse_scale_points (luabridge::LuaRef* lr)
1005 if (!(*lr)["scalepoints"].isTable()) {
1006 return boost::shared_ptr<ScalePoints> ();
1010 boost::shared_ptr<ScalePoints> rv = boost::shared_ptr<ScalePoints>(new ScalePoints());
1011 luabridge::LuaRef scalepoints ((*lr)["scalepoints"]);
1013 for (luabridge::Iterator i (scalepoints); !i.isNil (); ++i) {
1014 if (!i.key ().isString ()) { continue; }
1015 if (!i.value ().isNumber ()) { continue; }
1016 rv->insert(make_pair(i.key ().cast<std::string> (),
1017 i.value ().cast<float> ()));
1021 if (rv->size() > 0) {
1024 return boost::shared_ptr<ScalePoints> ();
1027 boost::shared_ptr<ScalePoints>
1028 LuaProc::get_scale_points (uint32_t port) const
1030 int lp = _ctrl_params[port].second;
1031 return _param_desc.find(lp)->second.scale_points;
1035 LuaProc::setup_lua_inline_gui (LuaState *lua_gui)
1037 lua_State* LG = lua_gui->getState ();
1038 LuaBindings::stddef (LG);
1039 LuaBindings::common (LG);
1040 LuaBindings::dsp (LG);
1041 LuaBindings::osc (LG);
1043 lua_gui->Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
1044 lua_gui->do_command ("function ardour () end");
1045 lua_gui->do_command (_script);
1047 // TODO think: use a weak-pointer here ?
1048 // (the GUI itself uses a shared ptr to this plugin, so we should be good)
1049 luabridge::getGlobalNamespace (LG)
1050 .beginNamespace ("Ardour")
1051 .beginClass <LuaProc> ("LuaProc")
1052 .addFunction ("shmem", &LuaProc::instance_shm)
1053 .addFunction ("table", &LuaProc::instance_ref)
1057 luabridge::push <LuaProc *> (LG, this);
1058 lua_setglobal (LG, "self");
1060 luabridge::push <float *> (LG, _control_data);
1061 lua_setglobal (LG, "CtrlPorts");
1063 ////////////////////////////////////////////////////////////////////////////////
1065 #include "ardour/search_paths.h"
1069 LuaProc::preset_name_to_uri (const std::string& name) const
1071 std::string uri ("urn:lua:");
1075 sha1_write (&s, (const uint8_t *) name.c_str(), name.size ());
1076 sha1_write (&s, (const uint8_t *) _script.c_str(), _script.size ());
1077 sha1_result_hash (&s, hash);
1082 LuaProc::presets_file () const
1084 return string_compose ("lua-%1", _info->unique_id);
1088 LuaProc::presets_tree () const
1090 XMLTree* t = new XMLTree;
1091 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1093 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
1094 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
1095 error << _("Unable to create LuaProc presets directory") << endmsg;
1099 p = Glib::build_filename (p, presets_file ());
1101 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
1102 t->set_root (new XMLNode (X_("LuaPresets")));
1106 t->set_filename (p);
1115 LuaProc::load_preset (PresetRecord r)
1117 boost::shared_ptr<XMLTree> t (presets_tree ());
1122 XMLNode* root = t->root ();
1123 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1124 XMLProperty const * label = (*i)->property (X_("label"));
1126 if (label->value() != r.label) {
1130 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
1131 if ((*j)->name() == X_("Parameter")) {
1132 XMLProperty const * index = (*j)->property (X_("index"));
1133 XMLProperty const * value = (*j)->property (X_("value"));
1137 const uint32_t p = atoi (index->value().c_str());
1138 const float v = atof (value->value().c_str ());
1139 set_parameter (p, v);
1140 PresetPortSetValue (p, v); /* EMIT SIGNAL */
1143 return Plugin::load_preset(r);
1149 LuaProc::do_save_preset (std::string name) {
1151 boost::shared_ptr<XMLTree> t (presets_tree ());
1156 // prevent dups -- just in case
1157 t->root()->remove_nodes_and_delete (X_("label"), name);
1159 std::string uri (preset_name_to_uri (name));
1161 XMLNode* p = new XMLNode (X_("Preset"));
1162 p->add_property (X_("uri"), uri);
1163 p->add_property (X_("label"), name);
1165 for (uint32_t i = 0; i < parameter_count(); ++i) {
1166 if (parameter_is_input (i)) {
1167 XMLNode* c = new XMLNode (X_("Parameter"));
1168 c->add_property (X_("index"), string_compose ("%1", i));
1169 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
1170 p->add_child_nocopy (*c);
1173 t->root()->add_child_nocopy (*p);
1175 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1176 f = Glib::build_filename (f, presets_file ());
1183 LuaProc::do_remove_preset (std::string name)
1185 boost::shared_ptr<XMLTree> t (presets_tree ());
1189 t->root()->remove_nodes_and_delete (X_("label"), name);
1190 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1191 f = Glib::build_filename (f, presets_file ());
1196 LuaProc::find_presets ()
1198 boost::shared_ptr<XMLTree> t (presets_tree ());
1200 XMLNode* root = t->root ();
1201 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1203 XMLProperty const * uri = (*i)->property (X_("uri"));
1204 XMLProperty const * label = (*i)->property (X_("label"));
1209 PresetRecord r (uri->value(), label->value(), true);
1210 _presets.insert (make_pair (r.uri, r));
1215 ////////////////////////////////////////////////////////////////////////////////
1217 LuaPluginInfo::LuaPluginInfo (LuaScriptInfoPtr lsi) {
1218 if (lsi->type != LuaScriptInfo::DSP) {
1219 throw failed_constructor ();
1224 creator = lsi->author;
1225 category = lsi->category;
1226 unique_id = lsi->unique_id;
1228 n_inputs.set (DataType::AUDIO, 1);
1229 n_outputs.set (DataType::AUDIO, 1);
1232 _is_instrument = category == "Instrument";
1236 LuaPluginInfo::load (Session& session)
1238 std::string script = "";
1239 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
1240 return PluginPtr ();
1244 script = Glib::file_get_contents (path);
1245 } catch (Glib::FileError err) {
1246 return PluginPtr ();
1249 if (script.empty ()) {
1250 return PluginPtr ();
1254 LuaProc* lp = new LuaProc (session.engine (), session, script);
1255 lp->set_origin (path);
1256 PluginPtr plugin (lp);
1258 } catch (failed_constructor& err) {
1261 return PluginPtr ();
1264 std::vector<Plugin::PresetRecord>
1265 LuaPluginInfo::get_presets (bool /*user_only*/) const
1267 std::vector<Plugin::PresetRecord> p;
1268 XMLTree* t = new XMLTree;
1269 std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("lua-%1", unique_id));
1270 if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
1271 t->set_filename (pf);
1273 XMLNode* root = t->root ();
1274 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1275 XMLProperty const * uri = (*i)->property (X_("uri"));
1276 XMLProperty const * label = (*i)->property (X_("label"));
1277 p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));