along with this program; if not, write to the Free Software
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
- $Id$
*/
#ifndef __ardour_port_h__
#define __ardour_port_h__
+#include <set>
+#include <vector>
+#include <string>
+#include <cstring>
#include <sigc++/signal.h>
#include <pbd/failed_constructor.h>
#include <ardour/ardour.h>
+#include <ardour/data_type.h>
#include <jack/jack.h>
namespace ARDOUR {
class AudioEngine;
+class Buffer;
-class Port : public sigc::trackable {
+/** Abstract base for ports
+ */
+class Port : public virtual sigc::trackable {
public:
- virtual ~Port() {
- free (_port);
- }
-
- Sample *get_buffer (jack_nframes_t nframes) {
- if (_flags & JackPortIsOutput) {
- return _buffer;
- } else {
- return (Sample *) jack_port_get_buffer (_port, nframes);
- }
- }
+ enum Flags {
+ IsInput = JackPortIsInput,
+ IsOutput = JackPortIsOutput,
+ IsPhysical = JackPortIsPhysical,
+ IsTerminal = JackPortIsTerminal,
+ CanMonitor = JackPortCanMonitor
+ };
- void reset_buffer () {
- if (_flags & JackPortIsOutput) {
- _buffer = (Sample *) jack_port_get_buffer (_port, 0);
- } else {
- _buffer = 0; /* catch illegal attempts to use it */
- }
- _silent = false;
- }
+ virtual ~Port();
- std::string name() {
+ std::string name() const {
return _name;
}
- std::string short_name() {
- return jack_port_short_name (_port);
- }
-
- int set_name (std::string str);
-
- JackPortFlags flags() const {
+ Flags flags() const {
return _flags;
}
- bool is_mine (jack_client_t *client) {
- return jack_port_is_mine (client, _port);
- }
-
- const char* type() const {
- return _type.c_str();
- }
-
- int connected () const {
- return jack_port_connected (_port);
- }
-
- bool connected_to (const std::string& portname) const {
- return jack_port_connected_to (_port, portname.c_str());
- }
-
- const char ** get_connections () const {
- return jack_port_get_connections (_port);
+ bool receives_input() const {
+ return _flags & IsInput;
}
- void reset_overs () {
- _short_overs = 0;
- _long_overs = 0;
- _overlen = 0;
+ bool sends_output () const {
+ return _flags & IsOutput;
}
- void reset_peak_meter () {
- _peak = 0;
- }
-
- void reset_meters () {
- reset_peak_meter ();
- reset_overs ();
+ bool can_monitor () const {
+ return _flags & CanMonitor;
}
void enable_metering() {
if (_metering) { _metering--; }
}
- float peak_db() const { return _peak_db; }
- jack_default_audio_sample_t peak() const { return _peak; }
+ virtual void cycle_start (nframes_t nframes, nframes_t offset) {}
+ virtual void cycle_end (nframes_t nframes, nframes_t offset) {}
+ virtual DataType type() const = 0;
+ virtual Buffer& get_buffer() = 0;
- uint32_t short_overs () const { return _short_overs; }
- uint32_t long_overs () const { return _long_overs; }
-
- static void set_short_over_length (jack_nframes_t);
- static void set_long_over_length (jack_nframes_t);
-
- bool receives_input() const {
- return _flags & JackPortIsInput;
- }
+ virtual bool connected () const;
+ virtual bool connected_to (const std::string& portname) const;
+ virtual int get_connections (std::vector<std::string>&) const;
- bool sends_output () const {
- return _flags & JackPortIsOutput;
- }
+ virtual int connect (Port& other);
+ virtual int disconnect (Port& other);
+ virtual int disconnect_all ();
- bool monitoring_input () const {
- return jack_port_monitoring_input (_port);
- }
+ virtual void reset ();
+ virtual int reestablish () {return 0; }
+ virtual int reconnect () { return 0; }
- bool can_monitor () const {
- return _flags & JackPortCanMonitor;
- }
-
- void ensure_monitor_input (bool yn) {
- jack_port_request_monitor (_port, yn);
- }
-
- void request_monitor_input (bool yn) {
- jack_port_request_monitor (_port, yn);
+ virtual int set_name (const std::string& str) {
+ _name = str;
+ return 0;
}
- jack_nframes_t latency () const {
- return jack_port_get_latency (_port);
- }
-
- void set_latency (jack_nframes_t nframes) {
- jack_port_set_latency (_port, nframes);
- }
+ virtual std::string short_name() const = 0;
+ virtual bool monitoring_input () const = 0;
+ virtual void ensure_monitor_input (bool yn) = 0;
+ virtual void request_monitor_input (bool yn) = 0;
+ virtual nframes_t latency () const = 0;
+ virtual nframes_t total_latency () const = 0;
+ virtual void set_latency (nframes_t nframes) = 0;
sigc::signal<void,bool> MonitorInputChanged;
sigc::signal<void,bool> ClockSyncChanged;
- bool is_silent() const { return _silent; }
-
- /** Assumes that the port is an audio output port */
- void silence (jack_nframes_t nframes, jack_nframes_t offset) {
- if (!_silent) {
- memset (_buffer + offset, 0, sizeof (Sample) * nframes);
- if (offset == 0) {
- /* XXX this isn't really true, but i am not sure
- how to set this correctly. we really just
- want to set it true when the entire port
- buffer has been overrwritten.
- */
- _silent = true;
- }
- }
- }
-
- void mark_silence (bool yn) {
- _silent = yn;
- }
+ static void set_engine (AudioEngine*);
- private:
+ protected:
friend class AudioEngine;
- Port (jack_port_t *port);
- void reset ();
-
- /* engine isn't supposed to below here */
-
- Sample *_buffer;
-
- /* cache these 3 from JACK so that we can
- access them for reconnecting.
- */
-
- JackPortFlags _flags;
- std::string _type;
- std::string _name;
-
- bool _last_monitor : 1;
- bool _silent : 1;
- jack_port_t *_port;
- jack_nframes_t _overlen;
- jack_default_audio_sample_t _peak;
- float _peak_db;
- uint32_t _short_overs;
- uint32_t _long_overs;
- unsigned short _metering;
+ Port (const std::string& name, Flags flgs);
+
+ virtual void recompute_total_latency() const {}
- static jack_nframes_t _long_over_length;
- static jack_nframes_t _short_over_length;
+ /* engine isn't supposed to access below here */
+
+ Flags _flags;
+ std::string _type;
+ std::string _name;
+ unsigned short _metering;
+ bool _last_monitor;
+ nframes_t _latency;
+
+ std::set<Port*> _connections;
+
+ static AudioEngine* engine;
+};
+
+class PortConnectableByName {
+ public:
+ PortConnectableByName() {}
+ virtual ~PortConnectableByName() {}
+
+ virtual int connect (const std::string& other_name) = 0;
+ virtual int disconnect (const std::string& other_name) = 0;
};
+class PortFacade : public virtual Port, public PortConnectableByName {
+ public:
+ PortFacade (const std::string& name, Flags flgs) : Port (name, flgs), _ext_port (0) {}
+ ~PortFacade() {}
+
+ void reset ();
+ int reestablish ();
+ int reconnect ();
+
+ int connect (Port& other);
+ int disconnect (Port& other);
+ int disconnect_all ();
+
+ int connect (const std::string& other_name);
+ int disconnect (const std::string& other_name);
+
+ bool connected () const;
+ bool connected_to (const std::string& portname) const;
+ int get_connections (std::vector<std::string>&) const;
+
+ std::string short_name() const;
+ int set_name (const std::string& str);
+ bool monitoring_input () const;
+ void ensure_monitor_input (bool yn);
+ void request_monitor_input (bool yn);
+ nframes_t latency () const;
+ nframes_t total_latency () const;
+ void set_latency (nframes_t nframes);
+
+ protected:
+ Port* _ext_port;
+};
+
} // namespace ARDOUR
#endif /* __ardour_port_h__ */
projects / ardour.git / blobdiff