#include <stdint.h>
#include <pthread.h>
+#include <boost/shared_ptr.hpp>
+
#include "ardour/types.h"
#include "ardour/audio_backend.h"
namespace ARDOUR {
+class DummyAudioBackend;
+
+class DummyMidiEvent {
+ public:
+ DummyMidiEvent (const pframes_t timestamp, const uint8_t* data, size_t size);
+ DummyMidiEvent (const DummyMidiEvent& other);
+ ~DummyMidiEvent ();
+ size_t size () const { return _size; };
+ pframes_t timestamp () const { return _timestamp; };
+ const unsigned char* const_data () const { return _data; };
+ unsigned char* data () { return _data; };
+ bool operator< (const DummyMidiEvent &other) const { return timestamp () < other.timestamp (); };
+ private:
+ size_t _size;
+ pframes_t _timestamp;
+ uint8_t *_data;
+};
+
+typedef std::vector<boost::shared_ptr<DummyMidiEvent> > DummyMidiBuffer;
+
+class DummyPort {
+ protected:
+ DummyPort (DummyAudioBackend &b, const std::string&, PortFlags);
+ public:
+ virtual ~DummyPort ();
+
+ const std::string& name () const { return _name; }
+ PortFlags flags () const { return _flags; }
+
+ int set_name (const std::string &name) { _name = name; return 0; }
+
+ virtual DataType type () const = 0;
+
+ bool is_input () const { return flags () & IsInput; }
+ bool is_output () const { return flags () & IsOutput; }
+ bool is_physical () const { return flags () & IsPhysical; }
+ bool is_terminal () const { return flags () & IsTerminal; }
+ bool is_connected () const { return _connections.size () != 0; }
+ bool is_connected (const DummyPort *port) const;
+ bool is_physically_connected () const;
+
+ const std::vector<DummyPort *>& get_connections () const { return _connections; }
+
+ int connect (DummyPort *port);
+ int disconnect (DummyPort *port);
+ void disconnect_all ();
+
+ virtual void* get_buffer (pframes_t nframes) = 0;
+
+ const LatencyRange& latency_range (bool for_playback) const
+ {
+ return for_playback ? _playback_latency_range : _capture_latency_range;
+ }
+
+ void set_latency_range (const LatencyRange &latency_range, bool for_playback)
+ {
+ if (for_playback)
+ {
+ _playback_latency_range = latency_range;
+ }
+ else
+ {
+ _capture_latency_range = latency_range;
+ }
+ }
+
+ private:
+ DummyAudioBackend &_dummy_backend;
+ std::string _name;
+ const PortFlags _flags;
+ LatencyRange _capture_latency_range;
+ LatencyRange _playback_latency_range;
+ std::vector<DummyPort*> _connections;
+
+ void _connect (DummyPort* , bool);
+ void _disconnect (DummyPort* , bool);
+
+}; // class DummyPort
+
+class DummyAudioPort : public DummyPort {
+ public:
+ DummyAudioPort (DummyAudioBackend &b, const std::string&, PortFlags);
+ ~DummyAudioPort ();
+
+ DataType type () const { return DataType::AUDIO; };
+
+ Sample* buffer () { return _buffer; }
+ const Sample* const_buffer () const { return _buffer; }
+ void* get_buffer (pframes_t nframes);
+
+ private:
+ Sample _buffer[8192];
+}; // class DummyAudioPort
+
+class DummyMidiPort : public DummyPort {
+ public:
+ DummyMidiPort (DummyAudioBackend &b, const std::string&, PortFlags);
+ ~DummyMidiPort ();
+
+ DataType type () const { return DataType::MIDI; };
+
+ void* get_buffer (pframes_t nframes);
+ const DummyMidiBuffer const_buffer () const { return _buffer; }
+
+ private:
+ DummyMidiBuffer _buffer;
+}; // class DummyMidiPort
+
class DummyAudioBackend : public AudioBackend {
+ friend class DummyPort;
public:
- DummyAudioBackend (AudioEngine& e);
+ DummyAudioBackend (AudioEngine& e, AudioBackendInfo& info);
~DummyAudioBackend ();
/* AUDIOBACKEND API */
bool _freewheeling;
float _samplerate;
- size_t _audio_buffersize;
+ size_t _samples_per_period;
float _dsp_load;
+ static size_t _max_buffer_size;
uint32_t _n_inputs;
uint32_t _n_outputs;
+ uint32_t _n_midi_inputs;
+ uint32_t _n_midi_outputs;
+
uint32_t _systemic_input_latency;
uint32_t _systemic_output_latency;
ThreadData (DummyAudioBackend* e, boost::function<void ()> fp, size_t stacksz)
: engine (e) , f (fp) , stacksize (stacksz) {}
};
+
+ /* port engine */
+ PortHandle add_port (const std::string& shortname, ARDOUR::DataType, ARDOUR::PortFlags);
+ int register_system_ports ();
+ void unregister_system_ports ();
+
+ std::vector<DummyPort *> _ports;
+
+
+ struct PortConnectData {
+ std::string a;
+ std::string b;
+ bool c;
+
+ PortConnectData (const std::string& a, const std::string& b, bool c)
+ : a (a) , b (b) , c (c) {}
+ };
+
+ std::vector<PortConnectData *> _port_connection_queue;
+ pthread_mutex_t _port_callback_mutex;
+
+ void port_connect_callback (const std::string& a, const std::string& b, bool conn) {
+ pthread_mutex_lock (&_port_callback_mutex);
+ _port_connection_queue.push_back(new PortConnectData(a, b, conn));
+ pthread_mutex_unlock (&_port_callback_mutex);
+ }
+
+ bool valid_port (PortHandle port) const {
+ return std::find (_ports.begin (), _ports.end (), (DummyPort*)port) != _ports.end ();
+ }
+
+ DummyPort * find_port (const std::string& port_name) const {
+ for (std::vector<DummyPort*>::const_iterator it = _ports.begin (); it != _ports.end (); ++it) {
+ if ((*it)->name () == port_name) {
+ return *it;
+ }
+ }
+ return NULL;
+ }
+
}; // class DummyAudioBackend
} // namespace
projects / ardour.git / blobdiff