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) {
244 _ctrl_params.clear ();
246 luabridge::LuaRef lua_render = luabridge::getGlobal (L, "render_inline");
247 if (lua_render.isFunction ()) {
248 _lua_has_inline_display = true;
251 luabridge::LuaRef lua_params = luabridge::getGlobal (L, "dsp_params");
252 if (lua_params.isFunction ()) {
254 // call function // add try {} catch (luabridge::LuaException const& e)
255 luabridge::LuaRef params = lua_params ();
257 if (params.isTable ()) {
259 for (luabridge::Iterator i (params); !i.isNil (); ++i) {
261 if (!i.key ().isNumber ()) { return false; }
262 if (!i.value ().isTable ()) { return false; }
263 if (!i.value ()["type"].isString ()) { return false; }
264 if (!i.value ()["name"].isString ()) { return false; }
265 if (!i.value ()["min"].isNumber ()) { return false; }
266 if (!i.value ()["max"].isNumber ()) { return false; }
268 int pn = i.key ().cast<int> ();
269 std::string type = i.value ()["type"].cast<std::string> ();
270 if (type == "input") {
271 if (!i.value ()["default"].isNumber ()) { return false; }
272 _ctrl_params.push_back (std::make_pair (false, pn));
274 else if (type == "output") {
275 _ctrl_params.push_back (std::make_pair (true, pn));
279 assert (pn == (int) _ctrl_params.size ());
281 //_param_desc[pn] = boost::shared_ptr<ParameterDescriptor> (new ParameterDescriptor());
282 luabridge::LuaRef lr = i.value ();
284 if (type == "input") {
285 _param_desc[pn].normal = lr["default"].cast<float> ();
287 _param_desc[pn].normal = lr["min"].cast<float> (); // output-port, no default
289 _param_desc[pn].lower = lr["min"].cast<float> ();
290 _param_desc[pn].upper = lr["max"].cast<float> ();
291 _param_desc[pn].toggled = lr["toggled"].isBoolean () && (lr["toggled"]).cast<bool> ();
292 _param_desc[pn].logarithmic = lr["logarithmic"].isBoolean () && (lr["logarithmic"]).cast<bool> ();
293 _param_desc[pn].integer_step = lr["integer"].isBoolean () && (lr["integer"]).cast<bool> ();
294 _param_desc[pn].sr_dependent = lr["ratemult"].isBoolean () && (lr["ratemult"]).cast<bool> ();
295 _param_desc[pn].enumeration = lr["enum"].isBoolean () && (lr["enum"]).cast<bool> ();
297 if (lr["bypass"].isBoolean () && (lr["bypass"]).cast<bool> ()) {
298 _designated_bypass_port = pn - 1; // lua table starts at 1.
301 if (lr["unit"].isString ()) {
302 std::string unit = lr["unit"].cast<std::string> ();
303 if (unit == "dB") { _param_desc[pn].unit = ParameterDescriptor::DB; }
304 else if (unit == "Hz") { _param_desc[pn].unit = ParameterDescriptor::HZ; }
305 else if (unit == "Midi Note") { _param_desc[pn].unit = ParameterDescriptor::MIDI_NOTE; }
307 _param_desc[pn].label = (lr["name"]).cast<std::string> ();
308 _param_desc[pn].scale_points = parse_scale_points (&lr);
310 luabridge::LuaRef doc = lr["doc"];
311 if (doc.isString ()) {
312 _param_doc[pn] = doc.cast<std::string> ();
316 assert (!(_param_desc[pn].toggled && _param_desc[pn].logarithmic));
321 _control_data = new float[parameter_count ()];
322 _shadow_data = new float[parameter_count ()];
324 for (uint32_t i = 0; i < parameter_count (); ++i) {
325 if (parameter_is_input (i)) {
326 _control_data[i] = _shadow_data[i] = default_value (i);
330 // expose ctrl-ports to global lua namespace
331 luabridge::push <float *> (L, _control_data);
332 lua_setglobal (L, "CtrlPorts");
334 return false; // no error
338 LuaProc::can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise)
340 // caller must hold process lock (no concurrent calls to interpreter
341 _output_configs.clear ();
343 lua_State* L = lua.getState ();
344 luabridge::LuaRef ioconfig = luabridge::getGlobal (L, "dsp_ioconfig");
346 luabridge::LuaRef *_iotable = NULL; // can't use reference :(
348 if (ioconfig.isFunction ()) {
350 luabridge::LuaRef iotable = ioconfig ();
351 if (iotable.isTable ()) {
352 _iotable = new luabridge::LuaRef (iotable);
354 } 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";
595 _configured_out = out;
601 LuaProc::connect_and_run (BufferSet& bufs,
602 framepos_t start, framepos_t end, double speed,
603 ChanMapping in, ChanMapping out,
604 pframes_t nframes, framecnt_t offset)
610 Plugin::connect_and_run (bufs, start, end, speed, in, out, nframes, offset);
612 // This is needed for ARDOUR::Session requests :(
613 if (! SessionEvent::has_per_thread_pool ()) {
615 snprintf (name, 64, "Proc-%p", this);
616 pthread_set_name (name);
617 SessionEvent::create_per_thread_pool (name, 64);
618 PBD::notify_event_loops_about_thread_creation (pthread_self(), name, 64);
621 uint32_t const n = parameter_count ();
622 for (uint32_t i = 0; i < n; ++i) {
623 if (parameter_is_control (i) && parameter_is_input (i)) {
624 _control_data[i] = _shadow_data[i];
628 #ifdef WITH_LUAPROC_STATS
629 int64_t t0 = g_get_monotonic_time ();
633 if (_lua_does_channelmapping) {
634 // run the DSP function
635 (*_lua_dsp)(&bufs, in, out, nframes, offset);
638 BufferSet& silent_bufs = _session.get_silent_buffers (ChanCount (DataType::AUDIO, 1));
639 BufferSet& scratch_bufs = _session.get_scratch_buffers (ChanCount (DataType::AUDIO, 1));
641 lua_State* L = lua.getState ();
642 luabridge::LuaRef in_map (luabridge::newTable (L));
643 luabridge::LuaRef out_map (luabridge::newTable (L));
645 const uint32_t audio_in = _configured_in.n_audio ();
646 const uint32_t audio_out = _configured_out.n_audio ();
647 const uint32_t midi_in = _configured_in.n_midi ();
649 for (uint32_t ap = 0; ap < audio_in; ++ap) {
651 const uint32_t buf_index = in.get(DataType::AUDIO, ap, &valid);
653 in_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
655 in_map[ap + 1] = silent_bufs.get_audio (0).data (offset);
658 for (uint32_t ap = 0; ap < audio_out; ++ap) {
660 const uint32_t buf_index = out.get(DataType::AUDIO, ap, &valid);
662 out_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
664 out_map[ap + 1] = scratch_bufs.get_audio (0).data (offset);
668 luabridge::LuaRef lua_midi_src_tbl (luabridge::newTable (L));
669 int e = 1; // > 1 port, we merge events (unsorted)
670 for (uint32_t mp = 0; mp < midi_in; ++mp) {
672 const uint32_t idx = in.get(DataType::MIDI, mp, &valid);
674 for (MidiBuffer::iterator m = bufs.get_midi(idx).begin();
675 m != bufs.get_midi(idx).end(); ++m, ++e) {
676 const Evoral::Event<framepos_t> ev(*m, false);
677 luabridge::LuaRef lua_midi_data (luabridge::newTable (L));
678 const uint8_t* data = ev.buffer();
679 for (uint32_t i = 0; i < ev.size(); ++i) {
680 lua_midi_data [i + 1] = data[i];
682 luabridge::LuaRef lua_midi_event (luabridge::newTable (L));
683 lua_midi_event["time"] = 1 + (*m).time();
684 lua_midi_event["data"] = lua_midi_data;
685 lua_midi_event["bytes"] = data;
686 lua_midi_event["size"] = ev.size();
687 lua_midi_src_tbl[e] = lua_midi_event;
692 if (_has_midi_input) {
693 // XXX TODO This needs a better solution than global namespace
694 luabridge::push (L, lua_midi_src_tbl);
695 lua_setglobal (L, "midiin");
698 luabridge::LuaRef lua_midi_sink_tbl (luabridge::newTable (L));
699 if (_has_midi_output) {
700 luabridge::push (L, lua_midi_sink_tbl);
701 lua_setglobal (L, "midiout");
704 // run the DSP function
705 (*_lua_dsp)(in_map, out_map, nframes);
707 // copy back midi events
708 if (_has_midi_output && lua_midi_sink_tbl.isTable ()) {
710 const uint32_t idx = out.get(DataType::MIDI, 0, &valid);
711 if (valid && bufs.count().n_midi() > idx) {
712 MidiBuffer& mbuf = bufs.get_midi(idx);
714 for (luabridge::Iterator i (lua_midi_sink_tbl); !i.isNil (); ++i) {
715 if (!i.key ().isNumber ()) { continue; }
716 if (!i.value ()["time"].isNumber ()) { continue; }
717 if (!i.value ()["data"].isTable ()) { continue; }
718 luabridge::LuaRef data_tbl (i.value ()["data"]);
719 framepos_t tme = i.value ()["time"];
720 if (tme < 1 || tme > nframes) { continue; }
723 for (luabridge::Iterator di (data_tbl); !di.isNil () && size < sizeof(data); ++di, ++size) {
724 data[size] = di.value ();
726 if (size > 0 && size < 64) {
727 mbuf.push_back(tme - 1, size, data);
734 } catch (luabridge::LuaException const& e) {
735 PBD::error << "LuaException: " << e.what () << "\n";
737 std::cerr << "LuaException: " << e.what () << "\n";
743 #ifdef WITH_LUAPROC_STATS
744 int64_t t1 = g_get_monotonic_time ();
747 lua.collect_garbage_step ();
748 #ifdef WITH_LUAPROC_STATS
750 int64_t t2 = g_get_monotonic_time ();
751 int64_t ela0 = t1 - t0;
752 int64_t ela1 = t2 - t1;
753 if (ela0 > _stats_max[0]) _stats_max[0] = ela0;
754 if (ela1 > _stats_max[1]) _stats_max[1] = ela1;
755 _stats_avg[0] += ela0;
756 _stats_avg[1] += ela1;
763 LuaProc::add_state (XMLNode* root) const
767 gchar* b64 = g_base64_encode ((const guchar*)_script.c_str (), _script.size ());
768 std::string b64s (b64);
770 XMLNode* script_node = new XMLNode (X_("script"));
771 script_node->set_property (X_("lua"), LUA_VERSION);
772 script_node->set_property (X_("origin"), _origin);
773 script_node->add_content (b64s);
774 root->add_child_nocopy (*script_node);
776 for (uint32_t i = 0; i < parameter_count(); ++i) {
777 if (parameter_is_input(i) && parameter_is_control(i)) {
778 child = new XMLNode("Port");
779 child->set_property("id", i);
780 child->set_property("value", _shadow_data[i]);
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 XMLNodeConstIterator iter;
835 if (_script.empty ()) {
836 if (set_script_from_state (node)) {
841 #ifndef NO_PLUGIN_STATE
842 if (node.name() != state_node_name()) {
843 error << _("Bad node sent to LuaProc::set_state") << endmsg;
847 nodes = node.children ("Port");
848 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
854 if (!child->get_property("id", port_id)) {
855 warning << _("LuaProc: port has no symbol, ignored") << endmsg;
859 if (!child->get_property("value", value)) {
860 warning << _("LuaProc: port has no value, ignored") << endmsg;
864 set_parameter (port_id, value);
868 return Plugin::set_state (node, version);
872 LuaProc::parameter_count () const
874 return _ctrl_params.size ();
878 LuaProc::default_value (uint32_t port)
880 if (_ctrl_params[port].first) {
884 int lp = _ctrl_params[port].second;
885 return _param_desc[lp].normal;
889 LuaProc::set_parameter (uint32_t port, float val)
891 assert (port < parameter_count ());
892 if (get_parameter (port) == val) {
895 _shadow_data[port] = val;
896 Plugin::set_parameter (port, val);
900 LuaProc::get_parameter (uint32_t port) const
902 if (parameter_is_input (port)) {
903 return _shadow_data[port];
905 return _control_data[port];
910 LuaProc::get_parameter_descriptor (uint32_t port, ParameterDescriptor& desc) const
912 assert (port <= parameter_count ());
913 int lp = _ctrl_params[port].second;
914 const ParameterDescriptor& d (_param_desc.find(lp)->second);
916 desc.lower = d.lower;
917 desc.upper = d.upper;
918 desc.normal = d.normal;
919 desc.toggled = d.toggled;
920 desc.logarithmic = d.logarithmic;
921 desc.integer_step = d.integer_step;
922 desc.sr_dependent = d.sr_dependent;
923 desc.enumeration = d.enumeration;
925 desc.label = d.label;
926 desc.scale_points = d.scale_points;
928 desc.update_steps ();
933 LuaProc::get_parameter_docs (uint32_t port) const {
934 assert (port <= parameter_count ());
935 int lp = _ctrl_params[port].second;
936 return _param_doc.find(lp)->second;
940 LuaProc::nth_parameter (uint32_t port, bool& ok) const
942 if (port < _ctrl_params.size ()) {
951 LuaProc::parameter_is_input (uint32_t port) const
953 assert (port < _ctrl_params.size ());
954 return (!_ctrl_params[port].first);
958 LuaProc::parameter_is_output (uint32_t port) const
960 assert (port < _ctrl_params.size ());
961 return (_ctrl_params[port].first);
964 std::set<Evoral::Parameter>
965 LuaProc::automatable () const
967 std::set<Evoral::Parameter> automatables;
968 for (uint32_t i = 0; i < _ctrl_params.size (); ++i) {
969 if (parameter_is_input (i)) {
970 automatables.insert (automatables.end (), Evoral::Parameter (PluginAutomation, 0, i));
977 LuaProc::describe_parameter (Evoral::Parameter param)
979 if (param.type () == PluginAutomation && param.id () < parameter_count ()) {
980 int lp = _ctrl_params[param.id ()].second;
981 return _param_desc[lp].label;
987 LuaProc::print_parameter (uint32_t param, char* buf, uint32_t len) const
990 if (param < parameter_count ()) {
991 snprintf (buf, len, "%.3f", get_parameter (param));
998 boost::shared_ptr<ScalePoints>
999 LuaProc::parse_scale_points (luabridge::LuaRef* lr)
1001 if (!(*lr)["scalepoints"].isTable()) {
1002 return boost::shared_ptr<ScalePoints> ();
1006 boost::shared_ptr<ScalePoints> rv = boost::shared_ptr<ScalePoints>(new ScalePoints());
1007 luabridge::LuaRef scalepoints ((*lr)["scalepoints"]);
1009 for (luabridge::Iterator i (scalepoints); !i.isNil (); ++i) {
1010 if (!i.key ().isString ()) { continue; }
1011 if (!i.value ().isNumber ()) { continue; }
1012 rv->insert(make_pair(i.key ().cast<std::string> (),
1013 i.value ().cast<float> ()));
1017 if (rv->size() > 0) {
1020 return boost::shared_ptr<ScalePoints> ();
1023 boost::shared_ptr<ScalePoints>
1024 LuaProc::get_scale_points (uint32_t port) const
1026 int lp = _ctrl_params[port].second;
1027 return _param_desc.find(lp)->second.scale_points;
1031 LuaProc::setup_lua_inline_gui (LuaState *lua_gui)
1033 lua_State* LG = lua_gui->getState ();
1034 LuaBindings::stddef (LG);
1035 LuaBindings::common (LG);
1036 LuaBindings::dsp (LG);
1037 LuaBindings::osc (LG);
1039 lua_gui->Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
1040 lua_gui->do_command ("function ardour () end");
1041 lua_gui->do_command (_script);
1043 // TODO think: use a weak-pointer here ?
1044 // (the GUI itself uses a shared ptr to this plugin, so we should be good)
1045 luabridge::getGlobalNamespace (LG)
1046 .beginNamespace ("Ardour")
1047 .beginClass <LuaProc> ("LuaProc")
1048 .addFunction ("shmem", &LuaProc::instance_shm)
1049 .addFunction ("table", &LuaProc::instance_ref)
1053 luabridge::push <LuaProc *> (LG, this);
1054 lua_setglobal (LG, "self");
1056 luabridge::push <float *> (LG, _control_data);
1057 lua_setglobal (LG, "CtrlPorts");
1059 ////////////////////////////////////////////////////////////////////////////////
1061 #include "ardour/search_paths.h"
1065 LuaProc::preset_name_to_uri (const std::string& name) const
1067 std::string uri ("urn:lua:");
1071 sha1_write (&s, (const uint8_t *) name.c_str(), name.size ());
1072 sha1_write (&s, (const uint8_t *) _script.c_str(), _script.size ());
1073 sha1_result_hash (&s, hash);
1078 LuaProc::presets_file () const
1080 return string_compose ("lua-%1", _info->unique_id);
1084 LuaProc::presets_tree () const
1086 XMLTree* t = new XMLTree;
1087 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1089 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
1090 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
1091 error << _("Unable to create LuaProc presets directory") << endmsg;
1095 p = Glib::build_filename (p, presets_file ());
1097 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
1098 t->set_root (new XMLNode (X_("LuaPresets")));
1102 t->set_filename (p);
1111 LuaProc::load_preset (PresetRecord r)
1113 boost::shared_ptr<XMLTree> t (presets_tree ());
1118 XMLNode* root = t->root ();
1119 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1121 if (!(*i)->get_property (X_("label"), str)) {
1124 if (str != r.label) {
1128 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
1129 if ((*j)->name() == X_("Parameter")) {
1132 if (!(*j)->get_property (X_("index"), index) ||
1133 !(*j)->get_property (X_("value"), value)) {
1136 set_parameter (index, value);
1137 PresetPortSetValue (index, value); /* EMIT SIGNAL */
1140 return Plugin::load_preset(r);
1146 LuaProc::do_save_preset (std::string name) {
1148 boost::shared_ptr<XMLTree> t (presets_tree ());
1153 // prevent dups -- just in case
1154 t->root()->remove_nodes_and_delete (X_("label"), name);
1156 std::string uri (preset_name_to_uri (name));
1158 XMLNode* p = new XMLNode (X_("Preset"));
1159 p->set_property (X_("uri"), uri);
1160 p->set_property (X_("label"), name);
1162 for (uint32_t i = 0; i < parameter_count(); ++i) {
1163 if (parameter_is_input (i)) {
1164 XMLNode* c = new XMLNode (X_("Parameter"));
1165 c->set_property (X_("index"), i);
1166 c->set_property (X_("value"), get_parameter (i));
1167 p->add_child_nocopy (*c);
1170 t->root()->add_child_nocopy (*p);
1172 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1173 f = Glib::build_filename (f, presets_file ());
1180 LuaProc::do_remove_preset (std::string name)
1182 boost::shared_ptr<XMLTree> t (presets_tree ());
1186 t->root()->remove_nodes_and_delete (X_("label"), name);
1187 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1188 f = Glib::build_filename (f, presets_file ());
1193 LuaProc::find_presets ()
1195 boost::shared_ptr<XMLTree> t (presets_tree ());
1197 XMLNode* root = t->root ();
1198 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1202 if (!(*i)->get_property (X_("uri"), uri) || !(*i)->get_property (X_("label"), label)) {
1206 PresetRecord r (uri, label, true);
1207 _presets.insert (make_pair (r.uri, r));
1212 ////////////////////////////////////////////////////////////////////////////////
1214 LuaPluginInfo::LuaPluginInfo (LuaScriptInfoPtr lsi) {
1215 if (lsi->type != LuaScriptInfo::DSP) {
1216 throw failed_constructor ();
1221 creator = lsi->author;
1222 category = lsi->category;
1223 unique_id = lsi->unique_id;
1225 n_inputs.set (DataType::AUDIO, 1);
1226 n_outputs.set (DataType::AUDIO, 1);
1229 _is_instrument = category == "Instrument";
1233 LuaPluginInfo::load (Session& session)
1235 std::string script = "";
1236 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
1237 return PluginPtr ();
1241 script = Glib::file_get_contents (path);
1242 } catch (Glib::FileError err) {
1243 return PluginPtr ();
1246 if (script.empty ()) {
1247 return PluginPtr ();
1251 LuaProc* lp = new LuaProc (session.engine (), session, script);
1252 lp->set_origin (path);
1253 PluginPtr plugin (lp);
1255 } catch (failed_constructor& err) {
1258 return PluginPtr ();
1261 std::vector<Plugin::PresetRecord>
1262 LuaPluginInfo::get_presets (bool /*user_only*/) const
1264 std::vector<Plugin::PresetRecord> p;
1265 XMLTree* t = new XMLTree;
1266 std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("lua-%1", unique_id));
1267 if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
1268 t->set_filename (pf);
1270 XMLNode* root = t->root ();
1271 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1272 XMLProperty const * uri = (*i)->property (X_("uri"));
1273 XMLProperty const * label = (*i)->property (X_("label"));
1274 p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));