533 lines
16 KiB
C++
533 lines
16 KiB
C++
/*
|
|
* Copyright (C) 2000-2017 Paul Davis <paul@linuxaudiosystems.com>
|
|
* Copyright (C) 2005-2007 Taybin Rutkin <taybin@taybin.com>
|
|
* Copyright (C) 2006-2014 David Robillard <d@drobilla.net>
|
|
* Copyright (C) 2009-2012 Carl Hetherington <carl@carlh.net>
|
|
* Copyright (C) 2013-2023 Robin Gareus <robin@gareus.org>
|
|
*
|
|
* 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.,
|
|
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*/
|
|
|
|
#ifndef __ardour_plugin_h__
|
|
#define __ardour_plugin_h__
|
|
|
|
#include <atomic>
|
|
#include <memory>
|
|
#include <set>
|
|
#include <string>
|
|
|
|
#include "pbd/controllable.h"
|
|
#include "pbd/statefuldestructible.h"
|
|
|
|
#include "ardour/buffer_set.h"
|
|
#include "ardour/chan_count.h"
|
|
#include "ardour/chan_mapping.h"
|
|
#include "ardour/cycles.h"
|
|
#include "ardour/latent.h"
|
|
#include "ardour/libardour_visibility.h"
|
|
#include "ardour/midi_ring_buffer.h"
|
|
#include "ardour/midi_state_tracker.h"
|
|
#include "ardour/parameter_descriptor.h"
|
|
#include "ardour/types.h"
|
|
#include "ardour/variant.h"
|
|
|
|
#include <map>
|
|
#include <set>
|
|
#include <vector>
|
|
|
|
namespace ARDOUR
|
|
{
|
|
class AudioEngine;
|
|
class Session;
|
|
class BufferSet;
|
|
class IOPlug;
|
|
class PluginInsert;
|
|
class Plugin;
|
|
class PluginInfo;
|
|
class AutomationControl;
|
|
class SessionObject;
|
|
|
|
typedef std::shared_ptr<Plugin> PluginPtr;
|
|
typedef std::shared_ptr<PluginInfo> PluginInfoPtr;
|
|
typedef std::list<PluginInfoPtr> PluginInfoList;
|
|
typedef std::set<uint32_t> PluginOutputConfiguration;
|
|
|
|
/** A plugin is an external module (usually 3rd party provided) loaded into Ardour
|
|
* for the purpose of digital signal processing.
|
|
*
|
|
* This class provides an abstraction for methords provided by
|
|
* all supported plugin standards such as presets, name, parameters etc.
|
|
*
|
|
* Plugins are not used directly in Ardour but always wrapped by a PluginInsert.
|
|
*/
|
|
class LIBARDOUR_API Plugin : public PBD::StatefulDestructible, public HasLatency
|
|
{
|
|
public:
|
|
Plugin (ARDOUR::AudioEngine&, ARDOUR::Session&);
|
|
Plugin (const Plugin&);
|
|
virtual ~Plugin ();
|
|
|
|
XMLNode& get_state () const;
|
|
virtual int set_state (const XMLNode&, int version);
|
|
|
|
virtual void set_insert_id (PBD::ID id) {}
|
|
virtual void set_state_dir (const std::string& d = "") {}
|
|
|
|
void set_insert (PluginInsert* pi, uint32_t num) {
|
|
_pi = pi;
|
|
_num = num;
|
|
}
|
|
|
|
PluginInsert* plugin_insert () const { return _pi; }
|
|
uint32_t plugin_number () const { return _num; }
|
|
|
|
virtual std::string unique_id () const = 0;
|
|
virtual const char* label () const = 0;
|
|
virtual const char* name () const = 0;
|
|
virtual const char* maker () const = 0;
|
|
virtual uint32_t parameter_count () const = 0;
|
|
virtual float default_value (uint32_t port) = 0;
|
|
virtual float get_parameter (uint32_t which) const = 0;
|
|
|
|
virtual std::string get_docs () const { return ""; }
|
|
virtual std::string get_parameter_docs (uint32_t /*which*/) const { return ""; }
|
|
|
|
virtual int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const = 0;
|
|
virtual uint32_t nth_parameter (uint32_t which, bool& ok) const = 0;
|
|
virtual std::string parameter_label (uint32_t which) const;
|
|
|
|
virtual void activate () = 0;
|
|
virtual void deactivate () = 0;
|
|
virtual void flush ()
|
|
{
|
|
deactivate ();
|
|
activate ();
|
|
}
|
|
|
|
virtual std::set<Evoral::Parameter> automatable () const = 0;
|
|
virtual std::string describe_parameter (Evoral::Parameter) = 0;
|
|
virtual std::string state_node_name () const = 0;
|
|
|
|
virtual bool print_parameter (uint32_t, std::string&) const { return false; }
|
|
|
|
virtual bool parameter_is_audio (uint32_t) const = 0;
|
|
virtual bool parameter_is_control (uint32_t) const = 0;
|
|
virtual bool parameter_is_input (uint32_t) const = 0;
|
|
virtual bool parameter_is_output (uint32_t) const = 0;
|
|
|
|
virtual uint32_t designated_bypass_port () { return UINT32_MAX; }
|
|
|
|
struct LIBARDOUR_API IOPortDescription {
|
|
public:
|
|
IOPortDescription (const std::string& n, bool sc = false, std::string gn = "", uint32_t gc = 0, uint32_t bn = 0)
|
|
: name (n)
|
|
, is_sidechain (sc)
|
|
, group_name (gn.empty () ? n : gn)
|
|
, group_channel (gc)
|
|
, bus_number (bn)
|
|
{ }
|
|
|
|
IOPortDescription (const IOPortDescription& other)
|
|
: name (other.name)
|
|
, is_sidechain (other.is_sidechain)
|
|
, group_name (other.group_name)
|
|
, group_channel (other.group_channel)
|
|
, bus_number (other.bus_number)
|
|
{ }
|
|
|
|
std::string name;
|
|
bool is_sidechain;
|
|
|
|
std::string group_name;
|
|
uint32_t group_channel;
|
|
uint32_t bus_number;
|
|
};
|
|
|
|
virtual IOPortDescription describe_io_port (DataType dt, bool input, uint32_t id) const;
|
|
virtual PluginOutputConfiguration possible_output () const;
|
|
|
|
virtual void set_automation_control (uint32_t /*port_index*/, std::shared_ptr<ARDOUR::AutomationControl>) {}
|
|
|
|
virtual std::shared_ptr<ScalePoints> get_scale_points (uint32_t /*port_index*/) const
|
|
{
|
|
return std::shared_ptr<ScalePoints> ();
|
|
}
|
|
|
|
samplecnt_t signal_latency () const
|
|
{
|
|
return plugin_latency ();
|
|
}
|
|
|
|
/** the max possible latency a plugin will have */
|
|
virtual samplecnt_t max_latency () const { return 0; }
|
|
|
|
virtual int set_block_size (pframes_t nframes) = 0;
|
|
virtual bool requires_fixed_sized_buffers () const { return false; }
|
|
virtual bool inplace_broken () const { return false; }
|
|
virtual bool connect_all_audio_outputs () const { return false; }
|
|
|
|
virtual int connect_and_run (BufferSet& bufs,
|
|
samplepos_t start, samplepos_t end, double speed,
|
|
ChanMapping const& in, ChanMapping const& out,
|
|
pframes_t nframes, samplecnt_t offset);
|
|
|
|
|
|
bool write_immediate_event (Evoral::EventType event_type, size_t size, const uint8_t* buf);
|
|
|
|
void realtime_handle_transport_stopped ();
|
|
void realtime_locate (bool);
|
|
void monitoring_changed ();
|
|
|
|
virtual void add_slave (std::shared_ptr<Plugin>, bool realtime) {}
|
|
virtual void remove_slave (std::shared_ptr<Plugin>) {}
|
|
|
|
typedef struct {
|
|
unsigned char* data;
|
|
int width;
|
|
int height;
|
|
int stride;
|
|
} Display_Image_Surface;
|
|
|
|
virtual bool has_inline_display () { return false; }
|
|
virtual bool inline_display_in_gui () { return false; }
|
|
virtual Display_Image_Surface* render_inline_display (uint32_t, uint32_t) { return NULL; }
|
|
PBD::Signal0<void> QueueDraw;
|
|
|
|
virtual bool has_midnam () { return false; }
|
|
virtual bool read_midnam () { return false; }
|
|
virtual std::string midnam_model () { return ""; }
|
|
PBD::Signal0<void> UpdateMidnam;
|
|
PBD::Signal0<void> UpdatedMidnam;
|
|
|
|
virtual bool knows_bank_patch () { return false; }
|
|
virtual uint32_t bank_patch (uint8_t chn) { return UINT32_MAX; }
|
|
PBD::Signal1<void, uint8_t> BankPatchChange;
|
|
|
|
struct PresetRecord {
|
|
PresetRecord () : valid (false) { }
|
|
|
|
PresetRecord (const std::string& u, const std::string& l, bool s = true, const std::string& d = "")
|
|
: uri (u)
|
|
, label (l)
|
|
, description (d)
|
|
, user (s)
|
|
, valid (true)
|
|
{ }
|
|
|
|
bool operator!= (PresetRecord const& a) const
|
|
{
|
|
return uri != a.uri || label != a.label;
|
|
}
|
|
|
|
bool operator< (PresetRecord const& a) const
|
|
{
|
|
if (label == a.label) {
|
|
return uri < a.uri;
|
|
}
|
|
return label < a.label;
|
|
}
|
|
|
|
std::string uri;
|
|
std::string label;
|
|
std::string description;
|
|
bool user;
|
|
bool valid;
|
|
};
|
|
|
|
/** Create a new plugin-preset from the current state
|
|
*
|
|
* @param name label to use for new preset (needs to be unique)
|
|
* @return PresetRecord with empty URI on failure
|
|
*/
|
|
PresetRecord save_preset (std::string name);
|
|
void remove_preset (std::string);
|
|
|
|
/** Set parameters using a preset */
|
|
virtual bool load_preset (PresetRecord);
|
|
void clear_preset ();
|
|
|
|
const PresetRecord* preset_by_label (const std::string&);
|
|
const PresetRecord* preset_by_uri (const std::string&);
|
|
|
|
virtual std::vector<PresetRecord> get_presets ();
|
|
|
|
/** @return Last preset to be requested; the settings may have
|
|
* been changed since; find out with parameter_changed_since_last_preset.
|
|
*/
|
|
PresetRecord last_preset () const
|
|
{
|
|
return _last_preset;
|
|
}
|
|
|
|
bool parameter_changed_since_last_preset () const
|
|
{
|
|
return _parameter_changed_since_last_preset;
|
|
}
|
|
|
|
virtual int first_user_preset_index () const { return 0; }
|
|
|
|
/** Emitted when a preset is added or removed, respectively */
|
|
PBD::Signal0<void> PresetAdded;
|
|
PBD::Signal0<void> PresetRemoved;
|
|
|
|
/** Emitted when any preset has been changed */
|
|
static PBD::Signal3<void, std::string, Plugin*, bool> PresetsChanged;
|
|
|
|
/** Emitted when a preset has been loaded */
|
|
PBD::Signal0<void> PresetLoaded;
|
|
|
|
/** Emitted when a parameter is altered in a way that may have
|
|
* changed the settings with respect to any loaded preset.
|
|
*/
|
|
PBD::Signal0<void> PresetDirty;
|
|
|
|
/** Emitted for preset-load to set a control-port */
|
|
PBD::Signal2<void, uint32_t, float> PresetPortSetValue;
|
|
|
|
/** @return true if plugin has a custom plugin GUI */
|
|
virtual bool has_editor () const = 0;
|
|
|
|
/** Emitted when a parameter is altered by something outside of our
|
|
* control, most typically a Plugin GUI/editor
|
|
*/
|
|
PBD::Signal2<void, uint32_t, float> ParameterChangedExternally;
|
|
|
|
virtual bool reconfigure_io (ChanCount /*in*/, ChanCount /*aux_in*/, ChanCount /*out*/) { return true; }
|
|
virtual bool match_variable_io (ChanCount& /*in*/, ChanCount& /*aux_in*/, ChanCount& /*out*/) { return false; }
|
|
|
|
virtual ChanCount output_streams () const;
|
|
virtual ChanCount input_streams () const;
|
|
|
|
virtual void set_info (const PluginInfoPtr info) { _info = info; }
|
|
PluginInfoPtr get_info () const { return _info; }
|
|
|
|
virtual void set_owner (SessionObject* o) { _owner = o; }
|
|
SessionObject* owner () const { return _owner; }
|
|
|
|
void set_cycles (uint32_t c) { _cycles = c; }
|
|
cycles_t cycles () const { return _cycles; }
|
|
|
|
void use_for_impulse_analysis ()
|
|
{
|
|
_for_impulse_analysis = true;
|
|
}
|
|
|
|
ARDOUR::AudioEngine& engine () const { return _engine; }
|
|
ARDOUR::Session& session () const { return _session; }
|
|
|
|
typedef std::map<uint32_t, ParameterDescriptor> PropertyDescriptors;
|
|
|
|
/** Get a descrption of all properties supported by this plugin.
|
|
*
|
|
* Properties are distinct from parameters in that they are potentially
|
|
* dynamic, referred to by key, and do not correspond 1:1 with ports.
|
|
*
|
|
* For LV2 plugins, properties are implemented by sending/receiving set/get
|
|
* messages to/from the plugin via event ports.
|
|
*/
|
|
virtual const PropertyDescriptors& get_supported_properties () const
|
|
{
|
|
static const PropertyDescriptors nothing;
|
|
return nothing;
|
|
}
|
|
|
|
virtual const ParameterDescriptor& get_property_descriptor (uint32_t id) const
|
|
{
|
|
static const ParameterDescriptor nothing;
|
|
return nothing;
|
|
}
|
|
|
|
/** Set a property from the UI.
|
|
*
|
|
* This is not UI-specific, but may only be used by one thread. If the
|
|
* Ardour UI is present, that is the UI thread, but otherwise, any thread
|
|
* except the audio thread may call this function as long as it is not
|
|
* called concurrently.
|
|
*/
|
|
virtual void set_property (uint32_t key, const Variant& value) {}
|
|
|
|
virtual Variant get_property_value (uint32_t) const
|
|
{
|
|
return Variant();
|
|
}
|
|
|
|
/** Emit PropertyChanged for all current property values. */
|
|
virtual void announce_property_values () {}
|
|
|
|
/** Emitted when a property is changed in the plugin. */
|
|
PBD::Signal2<void, uint32_t, Variant> PropertyChanged;
|
|
|
|
PBD::Signal1<void, uint32_t> StartTouch;
|
|
PBD::Signal1<void, uint32_t> EndTouch;
|
|
|
|
protected:
|
|
friend class IOPlug;
|
|
friend class PluginInsert;
|
|
friend class Session;
|
|
|
|
/* Called when a parameter of the plugin is changed outside of this
|
|
* host's control (typical via a plugin's own GUI/editor)
|
|
*/
|
|
virtual void parameter_changed_externally (uint32_t which, float val);
|
|
|
|
/* should be overridden by plugin API specific derived types to
|
|
* actually implement changing the parameter. The derived type should
|
|
* call this after the change is made.
|
|
*
|
|
* @param which parameter-id
|
|
* @param val the raw value (plugin internal)
|
|
* @param when time offset of samples in current cycle (0 .. n_samples)
|
|
* when the event is effective.
|
|
*/
|
|
virtual void set_parameter (uint32_t which, float val, sampleoffset_t when);
|
|
|
|
/** Do the actual saving of the current plugin settings to a preset of the provided name.
|
|
* Should return a URI on success, or an empty string on failure.
|
|
*/
|
|
virtual std::string do_save_preset (std::string) = 0;
|
|
/** Do the actual removal of a preset of the provided name */
|
|
virtual void do_remove_preset (std::string) = 0;
|
|
|
|
|
|
/** Plugin's [internal] state changed, mark preset and session
|
|
* as modified.
|
|
*/
|
|
void state_changed ();
|
|
|
|
ARDOUR::AudioEngine& _engine;
|
|
ARDOUR::Session& _session;
|
|
PluginInfoPtr _info;
|
|
uint32_t _cycles;
|
|
SessionObject* _owner;
|
|
bool _for_impulse_analysis;
|
|
|
|
std::map<std::string, PresetRecord> _presets;
|
|
|
|
private:
|
|
virtual samplecnt_t plugin_latency () const = 0;
|
|
|
|
/** Fill _presets with our presets */
|
|
virtual void find_presets () = 0;
|
|
|
|
/** Add state to an existing XMLNode */
|
|
virtual void add_state (XMLNode*) const = 0;
|
|
|
|
bool _have_presets;
|
|
MidiNoteTracker _tracker;
|
|
BufferSet _pending_stop_events;
|
|
bool _have_pending_stop_events;
|
|
PresetRecord _last_preset;
|
|
bool _parameter_changed_since_last_preset;
|
|
|
|
MidiRingBuffer<samplepos_t> _immediate_events;
|
|
std::atomic<bool> _resolve_midi;
|
|
|
|
void invalidate_preset_cache (std::string const&, Plugin*, bool);
|
|
void resolve_midi ();
|
|
|
|
PluginInsert* _pi;
|
|
uint32_t _num;
|
|
|
|
PBD::ScopedConnection _preset_connection;
|
|
};
|
|
|
|
struct PluginPreset {
|
|
PluginInfoPtr _pip;
|
|
Plugin::PresetRecord _preset;
|
|
|
|
PluginPreset (PluginInfoPtr pip, const Plugin::PresetRecord* preset = NULL)
|
|
: _pip (pip)
|
|
{
|
|
if (preset) {
|
|
_preset.uri = preset->uri;
|
|
_preset.label = preset->label;
|
|
_preset.user = preset->user;
|
|
_preset.description = preset->description;
|
|
_preset.valid = preset->valid;
|
|
}
|
|
}
|
|
};
|
|
|
|
typedef std::shared_ptr<PluginPreset> PluginPresetPtr;
|
|
typedef std::list<PluginPresetPtr> PluginPresetList;
|
|
|
|
PluginPtr
|
|
find_plugin (ARDOUR::Session&, std::string unique_id, ARDOUR::PluginType);
|
|
|
|
class LIBARDOUR_API PluginInfo
|
|
{
|
|
public:
|
|
PluginInfo ()
|
|
: multichannel_name_ambiguity (false)
|
|
, plugintype_name_ambiguity (false)
|
|
, internal (false)
|
|
, index (0)
|
|
{}
|
|
|
|
virtual ~PluginInfo () {}
|
|
|
|
std::string name;
|
|
std::string category;
|
|
std::string creator;
|
|
std::string path;
|
|
ChanCount n_inputs;
|
|
ChanCount n_outputs;
|
|
ARDOUR::PluginType type;
|
|
|
|
bool multichannel_name_ambiguity;
|
|
bool plugintype_name_ambiguity;
|
|
|
|
std::string unique_id;
|
|
|
|
virtual PluginPtr load (Session& session) = 0;
|
|
|
|
/* NOTE: it is possible for a plugin to be an effect AND an instrument.
|
|
* override these funcs as necessary to support that. */
|
|
virtual bool is_effect () const;
|
|
virtual bool is_instrument () const;
|
|
virtual bool is_utility () const; // this includes things like "generators" and "midi filters"
|
|
virtual bool is_analyzer () const;
|
|
|
|
virtual bool needs_midi_input () const;
|
|
|
|
virtual std::vector<Plugin::PresetRecord> get_presets (bool user_only) const = 0;
|
|
|
|
/* NOTE: this block of virtual methods looks like the interface
|
|
* to a Processor, but Plugin does not inherit from Processor.
|
|
* It is therefore not required that these precisely match
|
|
* the interface, but it is likely that they will evolve together. */
|
|
|
|
/* @return true if the plugin can change its inputs or outputs on demand. */
|
|
virtual bool reconfigurable_io () const { return false; }
|
|
|
|
/* max [re]configurable outputs (if finite, 0 otherwise) */
|
|
virtual uint32_t max_configurable_outputs () const
|
|
{
|
|
return n_outputs.n_audio();
|
|
}
|
|
|
|
/* hide from user */
|
|
virtual bool is_internal () const { return internal; }
|
|
|
|
protected:
|
|
friend class PluginManager;
|
|
bool internal;
|
|
uint32_t index; //< used for LADSPA, index in module
|
|
};
|
|
|
|
} // namespace ARDOUR
|
|
|
|
#endif /* __ardour_plugin_h__ */
|