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", 2097152)
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)
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", 2097152)
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 , _lua_does_channelmapping (false)
90 , _lua_has_inline_display (false)
91 , _designated_bypass_port (UINT32_MAX)
94 , _has_midi_input (false)
95 , _has_midi_output (false)
100 throw failed_constructor ();
103 for (uint32_t i = 0; i < parameter_count (); ++i) {
104 _control_data[i] = other._shadow_data[i];
105 _shadow_data[i] = other._shadow_data[i];
109 LuaProc::~LuaProc () {
110 #ifdef WITH_LUAPROC_STATS
111 if (_info && _stats_cnt > 0) {
112 printf ("LuaProc: '%s' run() avg: %.3f max: %.3f [ms]\n",
113 _info->name.c_str (),
114 0.0001f * _stats_avg[0] / (float) _stats_cnt,
115 0.0001f * _stats_max[0]);
116 printf ("LuaProc: '%s' gc() avg: %.3f max: %.3f [ms]\n",
117 _info->name.c_str (),
118 0.0001f * _stats_avg[1] / (float) _stats_cnt,
119 0.0001f * _stats_max[1]);
122 lua.do_command ("collectgarbage();");
124 delete [] _control_data;
125 delete [] _shadow_data;
131 #ifdef WITH_LUAPROC_STATS
132 _stats_avg[0] = _stats_avg[1] = _stats_max[0] = _stats_max[1] = _stats_cnt = 0;
136 lua.Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
137 // register session object
138 lua_State* L = lua.getState ();
139 LuaBindings::stddef (L);
140 LuaBindings::common (L);
141 LuaBindings::dsp (L);
143 luabridge::getGlobalNamespace (L)
144 .beginNamespace ("Ardour")
145 .beginClass <LuaProc> ("LuaProc")
146 .addFunction ("queue_draw", &LuaProc::queue_draw)
147 .addFunction ("shmem", &LuaProc::instance_shm)
148 .addFunction ("table", &LuaProc::instance_ref)
152 // add session to global lua namespace
153 luabridge::push <Session *> (L, &_session);
154 lua_setglobal (L, "Session");
157 luabridge::push <LuaProc *> (L, this);
158 lua_setglobal (L, "self");
161 lua.do_command ("io = nil os = nil loadfile = nil require = nil dofile = nil package = nil debug = nil");
163 lua.do_command ("for n in pairs(_G) do print(n) end print ('----')"); // print global env
165 lua.do_command ("function ardour () end");
169 LuaProc::lua_print (std::string s) {
170 std::cout <<"LuaProc: " << s << "\n";
171 PBD::error << "LuaProc: " << s << "\n";
175 LuaProc::load_script ()
177 assert (!_lua_dsp); // don't allow to re-initialize
178 LuaPluginInfoPtr lpi;
180 // TODO: refine APIs; function arguments..
181 // - perform channel-map in ardour (silent/scratch buffers) ?
182 // - control-port API (explicit get/set functions ??)
183 // - latency reporting (global var? ctrl-port? set-function ?)
184 // - MIDI -> sparse table of events
185 // { [sample] => { Event }, .. }
186 // or { { sample, Event }, .. }
189 LuaScriptInfoPtr lsi = LuaScripting::script_info (_script);
190 lpi = LuaPluginInfoPtr (new LuaPluginInfo (lsi));
193 _mempool.set_name ("LuaProc: " + lsi->name);
194 _docs = lsi->description;
195 } catch (failed_constructor& err) {
199 lua_State* L = lua.getState ();
200 lua.do_command (_script);
202 // check if script has a DSP callback
203 luabridge::LuaRef lua_dsp_run = luabridge::getGlobal (L, "dsp_run");
204 luabridge::LuaRef lua_dsp_map = luabridge::getGlobal (L, "dsp_runmap");
206 if ((lua_dsp_run.type () != LUA_TFUNCTION) == (lua_dsp_map.type () != LUA_TFUNCTION)) {
210 if (lua_dsp_run.type () == LUA_TFUNCTION) {
211 _lua_dsp = new luabridge::LuaRef (lua_dsp_run);
213 else if (lua_dsp_map.type () == LUA_TFUNCTION) {
214 _lua_dsp = new luabridge::LuaRef (lua_dsp_map);
215 _lua_does_channelmapping = true;
221 // initialize the DSP if needed
222 luabridge::LuaRef lua_dsp_init = luabridge::getGlobal (L, "dsp_init");
223 if (lua_dsp_init.type () == LUA_TFUNCTION) {
225 lua_dsp_init (_session.nominal_frame_rate ());
226 } catch (luabridge::LuaException const& e) {
231 _ctrl_params.clear ();
233 luabridge::LuaRef lua_render = luabridge::getGlobal (L, "render_inline");
234 if (lua_render.isFunction ()) {
235 _lua_has_inline_display = true;
238 luabridge::LuaRef lua_params = luabridge::getGlobal (L, "dsp_params");
239 if (lua_params.isFunction ()) {
241 // call function // add try {} catch (luabridge::LuaException const& e)
242 luabridge::LuaRef params = lua_params ();
244 if (params.isTable ()) {
246 for (luabridge::Iterator i (params); !i.isNil (); ++i) {
248 if (!i.key ().isNumber ()) { return false; }
249 if (!i.value ().isTable ()) { return false; }
250 if (!i.value ()["type"].isString ()) { return false; }
251 if (!i.value ()["name"].isString ()) { return false; }
252 if (!i.value ()["min"].isNumber ()) { return false; }
253 if (!i.value ()["max"].isNumber ()) { return false; }
255 int pn = i.key ().cast<int> ();
256 std::string type = i.value ()["type"].cast<std::string> ();
257 if (type == "input") {
258 if (!i.value ()["default"].isNumber ()) { return false; }
259 _ctrl_params.push_back (std::make_pair (false, pn));
261 else if (type == "output") {
262 _ctrl_params.push_back (std::make_pair (true, pn));
266 assert (pn == (int) _ctrl_params.size ());
268 //_param_desc[pn] = boost::shared_ptr<ParameterDescriptor> (new ParameterDescriptor());
269 luabridge::LuaRef lr = i.value ();
271 if (type == "input") {
272 _param_desc[pn].normal = lr["default"].cast<float> ();
274 _param_desc[pn].normal = lr["min"].cast<float> (); // output-port, no default
276 _param_desc[pn].lower = lr["min"].cast<float> ();
277 _param_desc[pn].upper = lr["max"].cast<float> ();
278 _param_desc[pn].toggled = lr["toggled"].isBoolean () && (lr["toggled"]).cast<bool> ();
279 _param_desc[pn].logarithmic = lr["logarithmic"].isBoolean () && (lr["logarithmic"]).cast<bool> ();
280 _param_desc[pn].integer_step = lr["integer"].isBoolean () && (lr["integer"]).cast<bool> ();
281 _param_desc[pn].sr_dependent = lr["ratemult"].isBoolean () && (lr["ratemult"]).cast<bool> ();
282 _param_desc[pn].enumeration = lr["enum"].isBoolean () && (lr["enum"]).cast<bool> ();
284 if (lr["bypass"].isBoolean () && (lr["bypass"]).cast<bool> ()) {
285 _designated_bypass_port = pn - 1; // lua table starts at 1.
288 if (lr["unit"].isString ()) {
289 std::string unit = lr["unit"].cast<std::string> ();
290 if (unit == "dB") { _param_desc[pn].unit = ParameterDescriptor::DB; }
291 else if (unit == "Hz") { _param_desc[pn].unit = ParameterDescriptor::HZ; }
292 else if (unit == "Midi Note") { _param_desc[pn].unit = ParameterDescriptor::MIDI_NOTE; }
294 _param_desc[pn].label = (lr["name"]).cast<std::string> ();
295 _param_desc[pn].scale_points = parse_scale_points (&lr);
297 luabridge::LuaRef doc = lr["doc"];
298 if (doc.isString ()) {
299 _param_doc[pn] = doc.cast<std::string> ();
303 assert (!(_param_desc[pn].toggled && _param_desc[pn].logarithmic));
308 _control_data = new float[parameter_count ()];
309 _shadow_data = new float[parameter_count ()];
311 for (uint32_t i = 0; i < parameter_count (); ++i) {
312 if (parameter_is_input (i)) {
313 _control_data[i] = _shadow_data[i] = default_value (i);
317 // expose ctrl-ports to global lua namespace
318 luabridge::push <float *> (L, _control_data);
319 lua_setglobal (L, "CtrlPorts");
321 return false; // no error
325 LuaProc::can_support_io_configuration (const ChanCount& in, ChanCount& out, ChanCount* imprecise)
327 // caller must hold process lock (no concurrent calls to interpreter
328 _output_configs.clear ();
330 lua_State* L = lua.getState ();
331 luabridge::LuaRef ioconfig = luabridge::getGlobal (L, "dsp_ioconfig");
333 luabridge::LuaRef *_iotable = NULL; // can't use reference :(
335 if (ioconfig.isFunction ()) {
337 luabridge::LuaRef iotable = ioconfig ();
338 if (iotable.isTable ()) {
339 _iotable = new luabridge::LuaRef (iotable);
341 } catch (luabridge::LuaException const& e) {
347 /* empty table as default */
348 luabridge::LuaRef iotable = luabridge::newTable(L);
349 _iotable = new luabridge::LuaRef (iotable);
352 // now we can reference it.
353 luabridge::LuaRef iotable (*_iotable);
356 if ((iotable).length () < 1) {
357 /* empty table as only config, to get default values */
358 luabridge::LuaRef ioconf = luabridge::newTable(L);
362 const int audio_in = in.n_audio ();
363 const int midi_in = in.n_midi ();
365 // preferred setting (provided by plugin_insert)
366 const int preferred_out = out.n_audio ();
367 const int preferred_midiout = out.n_midi ();
371 float penalty = 9999;
374 #define FOUNDCFG_PENALTY(in, out, p) { \
375 _output_configs.insert (out); \
378 midi_out = possible_midiout; \
380 imprecise->set (DataType::AUDIO, (in)); \
381 imprecise->set (DataType::MIDI, possible_midiin); \
383 _has_midi_input = (possible_midiin > 0); \
384 _has_midi_output = (possible_midiout > 0); \
390 #define FOUNDCFG_IMPRECISE(in, out) { \
391 const float p = fabsf ((float)(out) - preferred_out) * \
392 (((out) > preferred_out) ? 1.1 : 1) \
393 + fabsf ((float)possible_midiout - preferred_midiout) * \
394 ((possible_midiout - preferred_midiout) ? 0.6 : 0.5) \
395 + fabsf ((float)(in) - audio_in) * \
396 (((in) > audio_in) ? 275 : 250) \
397 + fabsf ((float)possible_midiin - midi_in) * \
398 ((possible_midiin - midi_in) ? 100 : 110); \
399 FOUNDCFG_PENALTY(in, out, p); \
402 #define FOUNDCFG(out) \
403 FOUNDCFG_IMPRECISE(audio_in, out)
405 #define ANYTHINGGOES \
406 _output_configs.insert (0);
408 #define UPTO(nch) { \
409 for (int n = 1; n < nch; ++n) { \
410 _output_configs.insert (n); \
418 for (luabridge::Iterator i (iotable); !i.isNil (); ++i) {
419 luabridge::LuaRef io (i.value ());
424 int possible_in = io["audio_in"].isNumber() ? io["audio_in"] : -1;
425 int possible_out = io["audio_out"].isNumber() ? io["audio_out"] : -1;
426 int possible_midiin = io["midi_in"].isNumber() ? io["midi_in"] : 0;
427 int possible_midiout = io["midi_out"].isNumber() ? io["midi_out"] : 0;
429 if (midi_in != possible_midiin && !imprecise) {
434 if ((possible_in == audio_in) && (possible_out == preferred_out)) {
435 /* Set penalty so low that this output configuration
436 * will trump any other one */
437 FOUNDCFG_PENALTY(audio_in, preferred_out, -1);
440 if (possible_out == 0 && possible_midiout == 0) {
441 /* skip configurations with no output at all */
445 if (possible_in == -1 || possible_in == -2) {
446 /* wildcard for input */
447 if (possible_out == possible_in) {
448 /* either both -1 or both -2 (invalid and
449 * interpreted as both -1): out must match in */
451 } else if (possible_out == -3 - possible_in) {
452 /* one is -1, the other is -2: any output configuration
453 * possible, pick what the insert prefers */
454 FOUNDCFG (preferred_out);
456 } else if (possible_out < -2) {
457 /* variable number of outputs up to -N,
458 * invalid if in == -2 but we accept it anyway */
459 FOUNDCFG (min (-possible_out, preferred_out));
462 /* exact number of outputs */
463 FOUNDCFG (possible_out);
467 if (possible_in < -2 || possible_in >= 0) {
468 /* specified number, exact or up to */
470 if (possible_in >= 0) {
471 /* configuration can only match possible_in */
472 desired_in = possible_in;
474 /* configuration can match up to -possible_in */
475 desired_in = min (-possible_in, audio_in);
477 if (!imprecise && audio_in != desired_in) {
478 /* skip that configuration, it cannot match
479 * the required audio input count, and we
480 * cannot ask for change via \imprecise */
481 } else if (possible_out == -1 || possible_out == -2) {
482 /* any output configuration possible
483 * out == -2 is invalid, interpreted as out == -1.
484 * Really imprecise only if desired_in != audio_in */
485 FOUNDCFG_IMPRECISE (desired_in, preferred_out);
487 } else if (possible_out < -2) {
488 /* variable number of outputs up to -N
489 * not specified if in > 0, but we accept it anyway.
490 * Really imprecise only if desired_in != audio_in */
491 FOUNDCFG_IMPRECISE (desired_in, min (-possible_out, preferred_out));
494 /* exact number of outputs
495 * Really imprecise only if desired_in != audio_in */
496 FOUNDCFG_IMPRECISE (desired_in, possible_out);
507 _selected_in = *imprecise;
512 out.set (DataType::MIDI, midi_out);
513 out.set (DataType::AUDIO, audio_out);
520 LuaProc::configure_io (ChanCount in, ChanCount out)
522 in.set (DataType::MIDI, _has_midi_input ? 1 : 0);
523 out.set (DataType::MIDI, _has_midi_output ? 1 : 0);
525 _info->n_inputs = _selected_in;
526 _info->n_outputs = _selected_out;
528 // configure the DSP if needed
529 if (in != _configured_in || out != _configured_out) {
530 lua_State* L = lua.getState ();
531 luabridge::LuaRef lua_dsp_configure = luabridge::getGlobal (L, "dsp_configure");
532 if (lua_dsp_configure.type () == LUA_TFUNCTION) {
534 luabridge::LuaRef io = lua_dsp_configure (&in, &out);
536 ChanCount lin (_selected_in);
537 ChanCount lout (_selected_out);
539 if (io["audio_in"].type() == LUA_TNUMBER) {
540 const int c = io["audio_in"].cast<int> ();
542 lin.set (DataType::AUDIO, c);
545 if (io["audio_out"].type() == LUA_TNUMBER) {
546 const int c = io["audio_out"].cast<int> ();
548 lout.set (DataType::AUDIO, c);
551 if (io["midi_in"].type() == LUA_TNUMBER) {
552 const int c = io["midi_in"].cast<int> ();
554 lin.set (DataType::MIDI, c);
557 if (io["midi_out"].type() == LUA_TNUMBER) {
558 const int c = io["midi_out"].cast<int> ();
560 lout.set (DataType::MIDI, c);
563 _info->n_inputs = lin;
564 _info->n_outputs = lout;
566 } catch (luabridge::LuaException const& e) {
567 PBD::error << "LuaException: " << e.what () << "\n";
569 std::cerr << "LuaException: " << e.what () << "\n";
577 _configured_out = out;
583 LuaProc::connect_and_run (BufferSet& bufs,
584 framepos_t start, framepos_t end, double speed,
585 ChanMapping in, ChanMapping out,
586 pframes_t nframes, framecnt_t offset)
592 Plugin::connect_and_run (bufs, start, end, speed, in, out, nframes, offset);
594 // This is needed for ARDOUR::Session requests :(
595 if (! SessionEvent::has_per_thread_pool ()) {
597 snprintf (name, 64, "Proc-%p", this);
598 pthread_set_name (name);
599 SessionEvent::create_per_thread_pool (name, 64);
600 PBD::notify_event_loops_about_thread_creation (pthread_self(), name, 64);
603 uint32_t const n = parameter_count ();
604 for (uint32_t i = 0; i < n; ++i) {
605 if (parameter_is_control (i) && parameter_is_input (i)) {
606 _control_data[i] = _shadow_data[i];
610 #ifdef WITH_LUAPROC_STATS
611 int64_t t0 = g_get_monotonic_time ();
615 if (_lua_does_channelmapping) {
616 // run the DSP function
617 (*_lua_dsp)(&bufs, in, out, nframes, offset);
620 BufferSet& silent_bufs = _session.get_silent_buffers (ChanCount (DataType::AUDIO, 1));
621 BufferSet& scratch_bufs = _session.get_scratch_buffers (ChanCount (DataType::AUDIO, 1));
623 lua_State* L = lua.getState ();
624 luabridge::LuaRef in_map (luabridge::newTable (L));
625 luabridge::LuaRef out_map (luabridge::newTable (L));
627 const uint32_t audio_in = _configured_in.n_audio ();
628 const uint32_t audio_out = _configured_out.n_audio ();
629 const uint32_t midi_in = _configured_in.n_midi ();
631 for (uint32_t ap = 0; ap < audio_in; ++ap) {
633 const uint32_t buf_index = in.get(DataType::AUDIO, ap, &valid);
635 in_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
637 in_map[ap + 1] = silent_bufs.get_audio (0).data (offset);
640 for (uint32_t ap = 0; ap < audio_out; ++ap) {
642 const uint32_t buf_index = out.get(DataType::AUDIO, ap, &valid);
644 out_map[ap + 1] = bufs.get_audio (buf_index).data (offset);
646 out_map[ap + 1] = scratch_bufs.get_audio (0).data (offset);
650 luabridge::LuaRef lua_midi_src_tbl (luabridge::newTable (L));
651 int e = 1; // > 1 port, we merge events (unsorted)
652 for (uint32_t mp = 0; mp < midi_in; ++mp) {
654 const uint32_t idx = in.get(DataType::MIDI, mp, &valid);
656 for (MidiBuffer::iterator m = bufs.get_midi(idx).begin();
657 m != bufs.get_midi(idx).end(); ++m, ++e) {
658 const Evoral::MIDIEvent<framepos_t> ev(*m, false);
659 luabridge::LuaRef lua_midi_data (luabridge::newTable (L));
660 const uint8_t* data = ev.buffer();
661 for (uint32_t i = 0; i < ev.size(); ++i) {
662 lua_midi_data [i + 1] = data[i];
664 luabridge::LuaRef lua_midi_event (luabridge::newTable (L));
665 lua_midi_event["time"] = 1 + (*m).time();
666 lua_midi_event["data"] = lua_midi_data;
667 lua_midi_src_tbl[e] = lua_midi_event;
672 if (_has_midi_input) {
673 // XXX TODO This needs a better solution than global namespace
674 luabridge::push (L, lua_midi_src_tbl);
675 lua_setglobal (L, "midiin");
678 luabridge::LuaRef lua_midi_sink_tbl (luabridge::newTable (L));
679 if (_has_midi_output) {
680 luabridge::push (L, lua_midi_sink_tbl);
681 lua_setglobal (L, "midiout");
684 // run the DSP function
685 (*_lua_dsp)(in_map, out_map, nframes);
687 // copy back midi events
688 if (_has_midi_output && lua_midi_sink_tbl.isTable ()) {
690 const uint32_t idx = out.get(DataType::MIDI, 0, &valid);
691 if (valid && bufs.count().n_midi() > idx) {
692 MidiBuffer& mbuf = bufs.get_midi(idx);
694 for (luabridge::Iterator i (lua_midi_sink_tbl); !i.isNil (); ++i) {
695 if (!i.key ().isNumber ()) { continue; }
696 if (!i.value ()["time"].isNumber ()) { continue; }
697 if (!i.value ()["data"].isTable ()) { continue; }
698 luabridge::LuaRef data_tbl (i.value ()["data"]);
699 framepos_t tme = i.value ()["time"];
700 if (tme < 1 || tme > nframes) { continue; }
703 for (luabridge::Iterator di (data_tbl); !di.isNil () && size < sizeof(data); ++di, ++size) {
704 data[size] = di.value ();
706 if (size > 0 && size < 64) {
707 mbuf.push_back(tme - 1, size, data);
714 } catch (luabridge::LuaException const& e) {
715 PBD::error << "LuaException: " << e.what () << "\n";
717 std::cerr << "LuaException: " << e.what () << "\n";
721 #ifdef WITH_LUAPROC_STATS
722 int64_t t1 = g_get_monotonic_time ();
725 lua.collect_garbage_step ();
726 #ifdef WITH_LUAPROC_STATS
728 int64_t t2 = g_get_monotonic_time ();
729 int64_t ela0 = t1 - t0;
730 int64_t ela1 = t2 - t1;
731 if (ela0 > _stats_max[0]) _stats_max[0] = ela0;
732 if (ela1 > _stats_max[1]) _stats_max[1] = ela1;
733 _stats_avg[0] += ela0;
734 _stats_avg[1] += ela1;
741 LuaProc::add_state (XMLNode* root) const
747 gchar* b64 = g_base64_encode ((const guchar*)_script.c_str (), _script.size ());
748 std::string b64s (b64);
750 XMLNode* script_node = new XMLNode (X_("script"));
751 script_node->add_property (X_("lua"), LUA_VERSION);
752 script_node->add_content (b64s);
753 root->add_child_nocopy (*script_node);
755 for (uint32_t i = 0; i < parameter_count(); ++i) {
756 if (parameter_is_input(i) && parameter_is_control(i)) {
757 child = new XMLNode("Port");
758 snprintf(buf, sizeof(buf), "%u", i);
759 child->add_property("id", std::string(buf));
760 snprintf(buf, sizeof(buf), "%+f", _shadow_data[i]);
761 child->add_property("value", std::string(buf));
762 root->add_child_nocopy(*child);
768 LuaProc::set_script_from_state (const XMLNode& node)
771 if (node.name () != state_node_name ()) {
775 if ((child = node.child (X_("script"))) != 0) {
776 for (XMLNodeList::const_iterator n = child->children ().begin (); n != child->children ().end (); ++n) {
777 if (!(*n)->is_content ()) { continue; }
779 guchar* buf = g_base64_decode ((*n)->content ().c_str (), &size);
780 _script = std::string ((const char*)buf, size);
782 if (load_script ()) {
783 PBD::error << _("Failed to load Lua script from session state.") << endmsg;
785 std::cerr << "Failed Lua Script: " << _script << std::endl;
792 if (_script.empty ()) {
793 PBD::error << _("Session State for LuaProcessor did not include a Lua script.") << endmsg;
797 PBD::error << _("Invalid/incompatible Lua script found for LuaProcessor.") << endmsg;
804 LuaProc::set_state (const XMLNode& node, int version)
806 #ifndef NO_PLUGIN_STATE
808 XMLProperty const * prop;
809 XMLNodeConstIterator iter;
817 if (_script.empty ()) {
818 if (set_script_from_state (node)) {
823 #ifndef NO_PLUGIN_STATE
824 if (node.name() != state_node_name()) {
825 error << _("Bad node sent to LuaProc::set_state") << endmsg;
829 nodes = node.children ("Port");
830 for (iter = nodes.begin(); iter != nodes.end(); ++iter) {
832 if ((prop = child->property("id")) != 0) {
833 port = prop->value().c_str();
835 warning << _("LuaProc: port has no symbol, ignored") << endmsg;
838 if ((prop = child->property("value")) != 0) {
839 value = prop->value().c_str();
841 warning << _("LuaProc: port has no value, ignored") << endmsg;
844 sscanf (port, "%" PRIu32, &port_id);
845 set_parameter (port_id, atof(value));
849 return Plugin::set_state (node, version);
853 LuaProc::parameter_count () const
855 return _ctrl_params.size ();
859 LuaProc::default_value (uint32_t port)
861 if (_ctrl_params[port].first) {
865 int lp = _ctrl_params[port].second;
866 return _param_desc[lp].normal;
870 LuaProc::set_parameter (uint32_t port, float val)
872 assert (port < parameter_count ());
873 if (get_parameter (port) == val) {
876 _shadow_data[port] = val;
877 Plugin::set_parameter (port, val);
881 LuaProc::get_parameter (uint32_t port) const
883 if (parameter_is_input (port)) {
884 return _shadow_data[port];
886 return _control_data[port];
891 LuaProc::get_parameter_descriptor (uint32_t port, ParameterDescriptor& desc) const
893 assert (port <= parameter_count ());
894 int lp = _ctrl_params[port].second;
895 const ParameterDescriptor& d (_param_desc.find(lp)->second);
897 desc.lower = d.lower;
898 desc.upper = d.upper;
899 desc.normal = d.normal;
900 desc.toggled = d.toggled;
901 desc.logarithmic = d.logarithmic;
902 desc.integer_step = d.integer_step;
903 desc.sr_dependent = d.sr_dependent;
904 desc.enumeration = d.enumeration;
906 desc.label = d.label;
907 desc.scale_points = d.scale_points;
909 desc.update_steps ();
914 LuaProc::get_parameter_docs (uint32_t port) const {
915 assert (port <= parameter_count ());
916 int lp = _ctrl_params[port].second;
917 return _param_doc.find(lp)->second;
921 LuaProc::nth_parameter (uint32_t port, bool& ok) const
923 if (port < _ctrl_params.size ()) {
932 LuaProc::parameter_is_input (uint32_t port) const
934 assert (port < _ctrl_params.size ());
935 return (!_ctrl_params[port].first);
939 LuaProc::parameter_is_output (uint32_t port) const
941 assert (port < _ctrl_params.size ());
942 return (_ctrl_params[port].first);
945 std::set<Evoral::Parameter>
946 LuaProc::automatable () const
948 std::set<Evoral::Parameter> automatables;
949 for (uint32_t i = 0; i < _ctrl_params.size (); ++i) {
950 if (parameter_is_input (i)) {
951 automatables.insert (automatables.end (), Evoral::Parameter (PluginAutomation, 0, i));
958 LuaProc::describe_parameter (Evoral::Parameter param)
960 if (param.type () == PluginAutomation && param.id () < parameter_count ()) {
961 int lp = _ctrl_params[param.id ()].second;
962 return _param_desc[lp].label;
968 LuaProc::print_parameter (uint32_t param, char* buf, uint32_t len) const
971 if (param < parameter_count ()) {
972 snprintf (buf, len, "%.3f", get_parameter (param));
979 boost::shared_ptr<ScalePoints>
980 LuaProc::parse_scale_points (luabridge::LuaRef* lr)
982 if (!(*lr)["scalepoints"].isTable()) {
983 return boost::shared_ptr<ScalePoints> ();
987 boost::shared_ptr<ScalePoints> rv = boost::shared_ptr<ScalePoints>(new ScalePoints());
988 luabridge::LuaRef scalepoints ((*lr)["scalepoints"]);
990 for (luabridge::Iterator i (scalepoints); !i.isNil (); ++i) {
991 if (!i.key ().isString ()) { continue; }
992 if (!i.value ().isNumber ()) { continue; }
993 rv->insert(make_pair(i.key ().cast<std::string> (),
994 i.value ().cast<float> ()));
998 if (rv->size() > 0) {
1001 return boost::shared_ptr<ScalePoints> ();
1004 boost::shared_ptr<ScalePoints>
1005 LuaProc::get_scale_points (uint32_t port) const
1007 int lp = _ctrl_params[port].second;
1008 return _param_desc.find(lp)->second.scale_points;
1012 LuaProc::setup_lua_inline_gui (LuaState *lua_gui)
1014 lua_State* LG = lua_gui->getState ();
1015 LuaBindings::stddef (LG);
1016 LuaBindings::common (LG);
1017 LuaBindings::dsp (LG);
1019 lua_gui->Print.connect (sigc::mem_fun (*this, &LuaProc::lua_print));
1020 lua_gui->do_command ("function ardour () end");
1021 lua_gui->do_command (_script);
1023 // TODO think: use a weak-pointer here ?
1024 // (the GUI itself uses a shared ptr to this plugin, so we should be good)
1025 luabridge::getGlobalNamespace (LG)
1026 .beginNamespace ("Ardour")
1027 .beginClass <LuaProc> ("LuaProc")
1028 .addFunction ("shmem", &LuaProc::instance_shm)
1029 .addFunction ("table", &LuaProc::instance_ref)
1033 luabridge::push <LuaProc *> (LG, this);
1034 lua_setglobal (LG, "self");
1036 luabridge::push <float *> (LG, _shadow_data);
1037 lua_setglobal (LG, "CtrlPorts");
1039 ////////////////////////////////////////////////////////////////////////////////
1041 #include "ardour/search_paths.h"
1045 LuaProc::preset_name_to_uri (const std::string& name) const
1047 std::string uri ("urn:lua:");
1051 sha1_write (&s, (const uint8_t *) name.c_str(), name.size ());
1052 sha1_write (&s, (const uint8_t *) _script.c_str(), _script.size ());
1053 sha1_result_hash (&s, hash);
1058 LuaProc::presets_file () const
1060 return string_compose ("lua-%1", _info->unique_id);
1064 LuaProc::presets_tree () const
1066 XMLTree* t = new XMLTree;
1067 std::string p = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1069 if (!Glib::file_test (p, Glib::FILE_TEST_IS_DIR)) {
1070 if (g_mkdir_with_parents (p.c_str(), 0755) != 0) {
1071 error << _("Unable to create LuaProc presets directory") << endmsg;
1075 p = Glib::build_filename (p, presets_file ());
1077 if (!Glib::file_test (p, Glib::FILE_TEST_EXISTS)) {
1078 t->set_root (new XMLNode (X_("LuaPresets")));
1082 t->set_filename (p);
1091 LuaProc::load_preset (PresetRecord r)
1093 boost::shared_ptr<XMLTree> t (presets_tree ());
1098 XMLNode* root = t->root ();
1099 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1100 XMLProperty const * label = (*i)->property (X_("label"));
1102 if (label->value() != r.label) {
1106 for (XMLNodeList::const_iterator j = (*i)->children().begin(); j != (*i)->children().end(); ++j) {
1107 if ((*j)->name() == X_("Parameter")) {
1108 XMLProperty const * index = (*j)->property (X_("index"));
1109 XMLProperty const * value = (*j)->property (X_("value"));
1113 set_parameter (atoi (index->value().c_str()), atof (value->value().c_str ()));
1116 return Plugin::load_preset(r);
1122 LuaProc::do_save_preset (std::string name) {
1124 boost::shared_ptr<XMLTree> t (presets_tree ());
1129 std::string uri (preset_name_to_uri (name));
1131 XMLNode* p = new XMLNode (X_("Preset"));
1132 p->add_property (X_("uri"), uri);
1133 p->add_property (X_("label"), name);
1135 for (uint32_t i = 0; i < parameter_count(); ++i) {
1136 if (parameter_is_input (i)) {
1137 XMLNode* c = new XMLNode (X_("Parameter"));
1138 c->add_property (X_("index"), string_compose ("%1", i));
1139 c->add_property (X_("value"), string_compose ("%1", get_parameter (i)));
1140 p->add_child_nocopy (*c);
1143 t->root()->add_child_nocopy (*p);
1145 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1146 f = Glib::build_filename (f, presets_file ());
1153 LuaProc::do_remove_preset (std::string name)
1155 boost::shared_ptr<XMLTree> t (presets_tree ());
1159 t->root()->remove_nodes_and_delete (X_("label"), name);
1160 std::string f = Glib::build_filename (ARDOUR::user_config_directory (), "presets");
1161 f = Glib::build_filename (f, presets_file ());
1166 LuaProc::find_presets ()
1168 boost::shared_ptr<XMLTree> t (presets_tree ());
1170 XMLNode* root = t->root ();
1171 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1173 XMLProperty const * uri = (*i)->property (X_("uri"));
1174 XMLProperty const * label = (*i)->property (X_("label"));
1179 PresetRecord r (uri->value(), label->value(), true);
1180 _presets.insert (make_pair (r.uri, r));
1185 ////////////////////////////////////////////////////////////////////////////////
1187 LuaPluginInfo::LuaPluginInfo (LuaScriptInfoPtr lsi) {
1188 if (lsi->type != LuaScriptInfo::DSP) {
1189 throw failed_constructor ();
1194 creator = lsi->author;
1195 category = lsi->category;
1196 unique_id = lsi->unique_id;
1198 n_inputs.set (DataType::AUDIO, 1);
1199 n_outputs.set (DataType::AUDIO, 1);
1202 _is_instrument = category == "Instrument";
1206 LuaPluginInfo::load (Session& session)
1208 std::string script = "";
1209 if (!Glib::file_test (path, Glib::FILE_TEST_EXISTS)) {
1210 return PluginPtr ();
1214 script = Glib::file_get_contents (path);
1215 } catch (Glib::FileError err) {
1216 return PluginPtr ();
1219 if (script.empty ()) {
1220 return PluginPtr ();
1224 PluginPtr plugin (new LuaProc (session.engine (), session, script));
1226 } catch (failed_constructor& err) {
1229 return PluginPtr ();
1232 std::vector<Plugin::PresetRecord>
1233 LuaPluginInfo::get_presets (bool /*user_only*/) const
1235 std::vector<Plugin::PresetRecord> p;
1236 XMLTree* t = new XMLTree;
1237 std::string pf = Glib::build_filename (ARDOUR::user_config_directory (), "presets", string_compose ("lua-%1", unique_id));
1238 if (Glib::file_test (pf, Glib::FILE_TEST_EXISTS)) {
1239 t->set_filename (pf);
1241 XMLNode* root = t->root ();
1242 for (XMLNodeList::const_iterator i = root->children().begin(); i != root->children().end(); ++i) {
1243 XMLProperty const * uri = (*i)->property (X_("uri"));
1244 XMLProperty const * label = (*i)->property (X_("label"));
1245 p.push_back (Plugin::PresetRecord (uri->value(), label->value(), true));