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/*
Copyright (C) 2000-2002 Paul Davis
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#ifdef WAF_BUILD
#include "libardour-config.h"
#endif
#include <vector>
#include <string>
#include <cstdlib>
#include <cstdio> // so libraptor doesn't complain
#include <cmath>
#include <dirent.h>
#include <sys/stat.h>
#include <cerrno>
#include <utility>
#include <lrdf.h>
#include "pbd/compose.h"
#include "pbd/error.h"
#include "pbd/xml++.h"
#include "ardour/ardour.h"
#include "ardour/session.h"
#include "ardour/audioengine.h"
#include "ardour/plugin.h"
#include "ardour/ladspa_plugin.h"
#include "ardour/plugin_manager.h"
#ifdef HAVE_AUDIOUNITS
#include "ardour/audio_unit.h"
#endif
#ifdef HAVE_SLV2
#include "ardour/lv2_plugin.h"
#endif
#include "pbd/stl_delete.h"
#include "i18n.h"
#include <locale.h>
using namespace std;
using namespace ARDOUR;
using namespace PBD;
PBD::Signal0<bool> Plugin::PresetFileExists;
Plugin::Plugin (AudioEngine& e, Session& s)
: _engine (e)
, _session (s)
, _cycles (0)
, _have_pending_stop_events (false)
{
}
Plugin::Plugin (const Plugin& other)
: StatefulDestructible()
, Latent()
, _engine (other._engine)
, _session (other._session)
, _info (other._info)
, _cycles (0)
, _have_pending_stop_events (false)
{
}
Plugin::~Plugin ()
{
}
void
Plugin::remove_preset (string name)
{
do_remove_preset (name);
_presets.erase (preset_by_label (name)->uri);
PresetRemoved (); /* EMIT SIGNAL */
}
bool
Plugin::save_preset (string name)
{
string const uri = do_save_preset (name);
if (!uri.empty()) {
_presets.insert (make_pair (uri, PresetRecord (uri, name)));
PresetAdded (); /* EMIT SIGNAL */
}
return !uri.empty ();
}
PluginPtr
ARDOUR::find_plugin(Session& session, string identifier, PluginType type)
{
PluginManager *mgr = PluginManager::the_manager();
PluginInfoList plugs;
switch (type) {
case ARDOUR::LADSPA:
plugs = mgr->ladspa_plugin_info();
break;
#ifdef HAVE_SLV2
case ARDOUR::LV2:
plugs = mgr->lv2_plugin_info();
break;
#endif
#ifdef VST_SUPPORT
case ARDOUR::VST:
plugs = mgr->vst_plugin_info();
break;
#endif
#ifdef HAVE_AUDIOUNITS
case ARDOUR::AudioUnit:
plugs = mgr->au_plugin_info();
break;
#endif
default:
return PluginPtr ((Plugin *) 0);
}
PluginInfoList::iterator i;
for (i = plugs.begin(); i != plugs.end(); ++i) {
if (identifier == (*i)->unique_id){
return (*i)->load (session);
}
}
#ifdef VST_SUPPORT
/* hmm, we didn't find it. could be because in older versions of Ardour.
we used to store the name of a VST plugin, not its unique ID. so try
again.
*/
for (i = plugs.begin(); i != plugs.end(); ++i) {
if (identifier == (*i)->name){
return (*i)->load (session);
}
}
#endif
return PluginPtr ((Plugin*) 0);
}
ChanCount
Plugin::output_streams () const
{
/* LADSPA & VST should not get here because they do not
return "infinite" i/o counts.
*/
return ChanCount::ZERO;
}
ChanCount
Plugin::input_streams () const
{
/* LADSPA & VST should not get here because they do not
return "infinite" i/o counts.
*/
return ChanCount::ZERO;
}
const Plugin::PresetRecord *
Plugin::preset_by_label (const string& label)
{
// FIXME: O(n)
for (map<string, PresetRecord>::const_iterator i = _presets.begin(); i != _presets.end(); ++i) {
if (i->second.label == label) {
return &i->second;
}
}
return 0;
}
const Plugin::PresetRecord *
Plugin::preset_by_uri (const string& uri)
{
map<string, PresetRecord>::const_iterator pr = _presets.find (uri);
if (pr != _presets.end()) {
return &pr->second;
} else {
return 0;
}
}
int
Plugin::connect_and_run (BufferSet& bufs,
ChanMapping in_map, ChanMapping out_map,
pframes_t nframes, framecnt_t offset)
{
if (bufs.count().n_midi() > 0) {
/* Track notes that we are sending to the plugin */
MidiBuffer& b = bufs.get_midi (0);
bool looped;
_tracker.track (b.begin(), b.end(), looped);
if (_have_pending_stop_events) {
/* Transmit note-offs that are pending from the last transport stop */
bufs.merge_from (_pending_stop_events, 0);
_have_pending_stop_events = false;
}
}
return 0;
}
void
Plugin::realtime_handle_transport_stopped ()
{
/* Create note-offs for any active notes and put them in _pending_stop_events, to be picked
up on the next call to connect_and_run ().
*/
_pending_stop_events.ensure_buffers (DataType::MIDI, 1, 4096);
_pending_stop_events.get_midi(0).clear ();
_tracker.resolve_notes (_pending_stop_events.get_midi (0), 0);
_have_pending_stop_events = true;
}
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