420 lines
8.7 KiB
C++
420 lines
8.7 KiB
C++
/*
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Copyright (C) 2000-2002 Paul Davis
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#ifdef WAF_BUILD
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#include "libardour-config.h"
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#endif
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#include <vector>
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#include <string>
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#include <cstdlib>
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#include <cstdio> // so libraptor doesn't complain
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#include <cmath>
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#ifndef COMPILER_MSVC
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#include <dirent.h>
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#endif
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#include <sys/stat.h>
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#include <cerrno>
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#include <utility>
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#ifdef HAVE_LRDF
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#include <lrdf.h>
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#endif
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#include "pbd/compose.h"
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#include "pbd/error.h"
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#include "pbd/xml++.h"
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#include "ardour/buffer_set.h"
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#include "ardour/chan_count.h"
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#include "ardour/chan_mapping.h"
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#include "ardour/data_type.h"
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#include "ardour/midi_buffer.h"
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#include "ardour/midi_state_tracker.h"
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#include "ardour/plugin.h"
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#include "ardour/plugin_manager.h"
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#include "ardour/session.h"
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#include "ardour/types.h"
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#ifdef AUDIOUNIT_SUPPORT
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#include "ardour/audio_unit.h"
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#endif
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#ifdef LV2_SUPPORT
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#include "ardour/lv2_plugin.h"
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#endif
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#include "pbd/stl_delete.h"
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#include "i18n.h"
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#include <locale.h>
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using namespace std;
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using namespace ARDOUR;
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using namespace PBD;
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namespace ARDOUR { class AudioEngine; }
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#ifdef NO_PLUGIN_STATE
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static bool seen_get_state_message = false;
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static bool seen_set_state_message = false;
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#endif
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bool
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PluginInfo::is_instrument () const
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{
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return (n_inputs.n_midi() != 0) && (n_outputs.n_audio() > 0);
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}
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Plugin::Plugin (AudioEngine& e, Session& s)
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: _engine (e)
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, _session (s)
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, _cycles (0)
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, _have_presets (false)
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, _have_pending_stop_events (false)
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, _parameter_changed_since_last_preset (false)
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{
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_pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096);
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}
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Plugin::Plugin (const Plugin& other)
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: StatefulDestructible()
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, Latent()
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, _engine (other._engine)
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, _session (other._session)
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, _info (other._info)
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, _cycles (0)
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, _have_presets (false)
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, _have_pending_stop_events (false)
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, _parameter_changed_since_last_preset (false)
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{
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_pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096);
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}
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Plugin::~Plugin ()
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{
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}
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void
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Plugin::remove_preset (string name)
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{
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do_remove_preset (name);
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_presets.erase (preset_by_label (name)->uri);
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_last_preset.uri = "";
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_parameter_changed_since_last_preset = false;
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PresetRemoved (); /* EMIT SIGNAL */
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}
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/** @return PresetRecord with empty URI on failure */
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Plugin::PresetRecord
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Plugin::save_preset (string name)
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{
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string const uri = do_save_preset (name);
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if (!uri.empty()) {
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_presets.insert (make_pair (uri, PresetRecord (uri, name)));
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PresetAdded (); /* EMIT SIGNAL */
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}
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return PresetRecord (uri, name);
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}
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PluginPtr
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ARDOUR::find_plugin(Session& session, string identifier, PluginType type)
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{
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PluginManager& mgr (PluginManager::instance());
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PluginInfoList plugs;
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switch (type) {
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case ARDOUR::LADSPA:
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plugs = mgr.ladspa_plugin_info();
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break;
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#ifdef LV2_SUPPORT
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case ARDOUR::LV2:
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plugs = mgr.lv2_plugin_info();
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break;
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#endif
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#ifdef WINDOWS_VST_SUPPORT
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case ARDOUR::Windows_VST:
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plugs = mgr.windows_vst_plugin_info();
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break;
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#endif
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#ifdef LXVST_SUPPORT
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case ARDOUR::LXVST:
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plugs = mgr.lxvst_plugin_info();
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break;
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#endif
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#ifdef AUDIOUNIT_SUPPORT
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case ARDOUR::AudioUnit:
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plugs = mgr.au_plugin_info();
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break;
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#endif
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default:
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return PluginPtr ((Plugin *) 0);
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}
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PluginInfoList::iterator i;
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for (i = plugs.begin(); i != plugs.end(); ++i) {
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if (identifier == (*i)->unique_id){
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return (*i)->load (session);
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}
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}
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#ifdef WINDOWS_VST_SUPPORT
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/* hmm, we didn't find it. could be because in older versions of Ardour.
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we used to store the name of a VST plugin, not its unique ID. so try
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again.
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*/
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for (i = plugs.begin(); i != plugs.end(); ++i) {
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if (identifier == (*i)->name){
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return (*i)->load (session);
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}
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}
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#endif
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#ifdef LXVST_SUPPORT
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/* hmm, we didn't find it. could be because in older versions of Ardour.
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we used to store the name of a VST plugin, not its unique ID. so try
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again.
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*/
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for (i = plugs.begin(); i != plugs.end(); ++i) {
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if (identifier == (*i)->name){
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return (*i)->load (session);
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}
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}
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#endif
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return PluginPtr ((Plugin*) 0);
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}
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ChanCount
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Plugin::output_streams () const
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{
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/* LADSPA & VST should not get here because they do not
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return "infinite" i/o counts.
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*/
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return ChanCount::ZERO;
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}
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ChanCount
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Plugin::input_streams () const
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{
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/* LADSPA & VST should not get here because they do not
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return "infinite" i/o counts.
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*/
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return ChanCount::ZERO;
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}
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const Plugin::PresetRecord *
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Plugin::preset_by_label (const string& label)
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{
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// FIXME: O(n)
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for (map<string, PresetRecord>::const_iterator i = _presets.begin(); i != _presets.end(); ++i) {
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if (i->second.label == label) {
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return &i->second;
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}
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}
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return 0;
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}
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const Plugin::PresetRecord *
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Plugin::preset_by_uri (const string& uri)
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{
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map<string, PresetRecord>::const_iterator pr = _presets.find (uri);
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if (pr != _presets.end()) {
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return &pr->second;
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} else {
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return 0;
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}
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}
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int
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Plugin::connect_and_run (BufferSet& bufs,
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ChanMapping /*in_map*/, ChanMapping /*out_map*/,
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pframes_t /* nframes */, framecnt_t /*offset*/)
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{
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if (bufs.count().n_midi() > 0) {
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/* Track notes that we are sending to the plugin */
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const MidiBuffer& b = bufs.get_midi (0);
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_tracker.track (b.begin(), b.end());
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if (_have_pending_stop_events) {
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/* Transmit note-offs that are pending from the last transport stop */
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bufs.merge_from (_pending_stop_events, 0);
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_have_pending_stop_events = false;
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}
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}
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return 0;
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}
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void
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Plugin::realtime_handle_transport_stopped ()
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{
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resolve_midi ();
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}
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void
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Plugin::realtime_locate ()
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{
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resolve_midi ();
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}
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void
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Plugin::monitoring_changed ()
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{
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resolve_midi ();
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}
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void
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Plugin::resolve_midi ()
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{
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/* Create note-offs for any active notes and put them in _pending_stop_events, to be picked
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up on the next call to connect_and_run ().
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*/
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_pending_stop_events.get_midi(0).clear ();
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_tracker.resolve_notes (_pending_stop_events.get_midi (0), 0);
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_have_pending_stop_events = true;
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}
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vector<Plugin::PresetRecord>
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Plugin::get_presets ()
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{
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vector<PresetRecord> p;
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#ifndef NO_PLUGIN_STATE
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if (!_have_presets) {
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find_presets ();
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_have_presets = true;
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}
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for (map<string, PresetRecord>::const_iterator i = _presets.begin(); i != _presets.end(); ++i) {
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p.push_back (i->second);
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}
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#else
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if (!seen_set_state_message) {
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info << string_compose (_("Plugin presets are not supported in this build of %1. Consider paying for a full version"),
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PROGRAM_NAME)
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<< endmsg;
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seen_set_state_message = true;
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}
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#endif
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return p;
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}
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/** Set parameters using a preset */
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bool
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Plugin::load_preset (PresetRecord r)
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{
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_last_preset = r;
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_parameter_changed_since_last_preset = false;
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PresetLoaded (); /* EMIT SIGNAL */
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return true;
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}
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void
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Plugin::clear_preset ()
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{
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_last_preset.uri = "";
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_last_preset.label = "";
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_parameter_changed_since_last_preset = false;
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PresetLoaded (); /* EMIT SIGNAL */
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}
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/** @param val `plugin' value */
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void
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Plugin::set_parameter (uint32_t which, float)
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{
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_parameter_changed_since_last_preset = true;
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_session.set_dirty ();
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ParameterChanged (which, get_parameter (which)); /* EMIT SIGNAL */
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}
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int
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Plugin::set_state (const XMLNode& node, int /*version*/)
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{
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XMLProperty const * p = node.property (X_("last-preset-uri"));
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if (p) {
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_last_preset.uri = p->value ();
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}
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p = node.property (X_("last-preset-label"));
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if (p) {
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_last_preset.label = p->value ();
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}
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p = node.property (X_("parameter-changed-since-last-preset"));
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if (p) {
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_parameter_changed_since_last_preset = string_is_affirmative (p->value ());
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}
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return 0;
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}
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XMLNode &
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Plugin::get_state ()
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{
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XMLNode* root = new XMLNode (state_node_name ());
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LocaleGuard lg (X_("C"));
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root->add_property (X_("last-preset-uri"), _last_preset.uri);
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root->add_property (X_("last-preset-label"), _last_preset.label);
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root->add_property (X_("parameter-changed-since-last-preset"), _parameter_changed_since_last_preset ? X_("yes") : X_("no"));
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#ifndef NO_PLUGIN_STATE
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add_state (root);
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#else
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if (!seen_get_state_message) {
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info << string_compose (_("Saving plugin settings is not supported in this build of %1. Consider paying for the full version"),
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PROGRAM_NAME)
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<< endmsg;
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seen_get_state_message = true;
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}
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#endif
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return *root;
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}
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void
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Plugin::set_info (PluginInfoPtr info)
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{
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_info = info;
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}
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