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/*
Copyright (C) 2006 Paul Davis
Written by Taybin Rutkin
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.
*/
#ifndef __ardour_audio_unit_h__
#define __ardour_audio_unit_h__
#include <stdint.h>
#include <boost/shared_ptr.hpp>
#include <list>
#include <set>
#include <string>
#include <vector>
#include <map>
#include "ardour/plugin.h"
#include <AudioUnit/AudioUnit.h>
#include <AudioUnit/AudioUnitProperties.h>
#include "appleutility/AUParamInfo.h"
#include <boost/shared_ptr.hpp>
class CAComponent;
class CAAudioUnit;
class CAComponentDescription;
struct AudioBufferList;
namespace ARDOUR {
class AudioEngine;
class Session;
struct AUParameterDescriptor : public Plugin::ParameterDescriptor {
// additional fields to make operations more efficient
AudioUnitParameterID id;
AudioUnitScope scope;
AudioUnitElement element;
float default_value;
bool automatable;
AudioUnitParameterUnit unit;
};
class AUPlugin : public ARDOUR::Plugin
{
public:
AUPlugin (AudioEngine& engine, Session& session, boost::shared_ptr<CAComponent> comp);
AUPlugin (const AUPlugin& other);
virtual ~AUPlugin ();
std::string unique_id () const;
const char * label () const;
const char * name () const { return _info->name.c_str(); }
const char * maker () const { return _info->creator.c_str(); }
uint32_t parameter_count () const;
float default_value (uint32_t port);
framecnt_t signal_latency() const;
void set_parameter (uint32_t which, float val);
float get_parameter (uint32_t which) const;
int get_parameter_descriptor (uint32_t which, ParameterDescriptor&) const;
uint32_t nth_parameter (uint32_t which, bool& ok) const;
void activate ();
void deactivate ();
void flush ();
int set_block_size (pframes_t nframes);
int connect_and_run (BufferSet& bufs,
ChanMapping in, ChanMapping out,
pframes_t nframes, framecnt_t offset);
std::set<Evoral::Parameter> automatable() const;
std::string describe_parameter (Evoral::Parameter);
std::string state_node_name () const { return "audiounit"; }
void print_parameter (uint32_t, char*, uint32_t len) const;
bool parameter_is_audio (uint32_t) const;
bool parameter_is_control (uint32_t) const;
bool parameter_is_input (uint32_t) const;
bool parameter_is_output (uint32_t) const;
void set_info (PluginInfoPtr);
int set_state(const XMLNode& node, int);
bool load_preset (PresetRecord);
std::string current_preset() const;
bool has_editor () const;
bool reconfigurable_io() const { return true; }
bool can_support_io_configuration (const ChanCount& in, ChanCount& out) const;
ChanCount output_streams() const;
ChanCount input_streams() const;
bool configure_io (ChanCount in, ChanCount out);
bool requires_fixed_size_buffers() const;
void set_fixed_size_buffers (bool yn) {
_requires_fixed_size_buffers = yn;
}
boost::shared_ptr<CAAudioUnit> get_au () { return unit; }
boost::shared_ptr<CAComponent> get_comp () const { return comp; }
OSStatus render_callback(AudioUnitRenderActionFlags *ioActionFlags,
const AudioTimeStamp *inTimeStamp,
UInt32 inBusNumber,
UInt32 inNumberFrames,
AudioBufferList* ioData);
/* "host" callbacks */
OSStatus get_beat_and_tempo_callback (Float64* outCurrentBeat,
Float64* outCurrentTempo);
OSStatus get_musical_time_location_callback (UInt32* outDeltaSampleOffsetToNextBeat,
Float32* outTimeSig_Numerator,
UInt32* outTimeSig_Denominator,
Float64* outCurrentMeasureDownBeat);
OSStatus get_transport_state_callback (Boolean* outIsPlaying,
Boolean* outTransportStateChanged,
Float64* outCurrentSampleInTimeLine,
Boolean* outIsCycling,
Float64* outCycleStartBeat,
Float64* outCycleEndBeat);
static std::string maybe_fix_broken_au_id (const std::string&);
protected:
std::string do_save_preset (std::string name);
void do_remove_preset (std::string);
private:
void find_presets ();
boost::shared_ptr<CAComponent> comp;
boost::shared_ptr<CAAudioUnit> unit;
bool initialized;
int32_t input_channels;
int32_t output_channels;
std::vector<std::pair<int,int> > io_configs;
pframes_t _current_block_size;
framecnt_t _last_nframes;
bool _requires_fixed_size_buffers;
AudioBufferList* buffers;
bool _has_midi_input;
bool _has_midi_output;
/* despite all the cool work that apple did on their AU preset
system, they left factory presets and user presets as two
entirely different kinds of things, handled by two entirely
different parts of the API. Resolve this.
*/
/* XXX these two maps should really be shared across all instances of this AUPlugin */
typedef std::map<std::string,std::string> UserPresetMap;
UserPresetMap user_preset_map;
typedef std::map<std::string,int> FactoryPresetMap;
FactoryPresetMap factory_preset_map;
UInt32 global_elements;
UInt32 output_elements;
UInt32 input_elements;
int set_output_format (AudioStreamBasicDescription&);
int set_input_format (AudioStreamBasicDescription&);
int set_stream_format (int scope, uint32_t cnt, AudioStreamBasicDescription&);
void discover_parameters ();
void add_state (XMLNode *) const;
std::vector<std::pair<uint32_t, uint32_t> > parameter_map;
uint32_t current_maxbuf;
framecnt_t current_offset;
framecnt_t cb_offset;
BufferSet* current_buffers;
framecnt_t frames_processed;
std::vector<AUParameterDescriptor> descriptors;
void init ();
void discover_factory_presets ();
bool last_transport_rolling;
float last_transport_speed;
};
typedef boost::shared_ptr<AUPlugin> AUPluginPtr;
struct AUPluginCachedInfo {
std::vector<std::pair<int,int> > io_configs;
};
class AUPluginInfo : public PluginInfo {
public:
AUPluginInfo (boost::shared_ptr<CAComponentDescription>);
~AUPluginInfo ();
PluginPtr load (Session& session);
bool needs_midi_input ();
bool is_effect () const;
bool is_effect_without_midi_input () const;
bool is_effect_with_midi_input () const;
bool is_instrument () const;
AUPluginCachedInfo cache;
static PluginInfoList* discover ();
static void get_names (CAComponentDescription&, std::string& name, std::string& maker);
static std::string stringify_descriptor (const CAComponentDescription&);
static int load_cached_info ();
private:
boost::shared_ptr<CAComponentDescription> descriptor;
UInt32 version;
static void discover_music (PluginInfoList&);
static void discover_fx (PluginInfoList&);
static void discover_generators (PluginInfoList&);
static void discover_instruments (PluginInfoList&);
static void discover_by_description (PluginInfoList&, CAComponentDescription&);
static Glib::ustring au_cache_path ();
typedef std::map<std::string,AUPluginCachedInfo> CachedInfoMap;
static CachedInfoMap cached_info;
static bool cached_io_configuration (const std::string&, UInt32, CAComponent&, AUPluginCachedInfo&, const std::string& name);
static void add_cached_info (const std::string&, AUPluginCachedInfo&);
static void save_cached_info ();
};
typedef boost::shared_ptr<AUPluginInfo> AUPluginInfoPtr;
} // namespace ARDOUR
#endif // __ardour_audio_unit_h__
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