/*
- Copyright (C) 2006 Paul Davis
+ Copyright (C) 2006 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
*/
#include <cassert>
-#include <ardour/audio_port.h>
-#include <ardour/jack_audio_port.h>
-#include <ardour/audioengine.h>
-#include <ardour/data_type.h>
-using namespace ARDOUR;
-using namespace std;
+#include "pbd/stacktrace.h"
-AudioPort::AudioPort (const std::string& name, Flags flags, bool external, nframes_t capacity)
- : Port (name, flags)
- , BaseAudioPort (name, flags)
- , PortFacade (name, flags)
-{
- if (!external || receives_input()) {
+#include "ardour/audio_buffer.h"
+#include "ardour/audioengine.h"
+#include "ardour/audio_port.h"
+#include "ardour/data_type.h"
+#include "ardour/port_engine.h"
- /* internal-only and input ports need their own buffers.
- external output ports use the external port buffer.
- */
-
- _buffer = new AudioBuffer (capacity);
- _own_buffer = true;
- }
+using namespace ARDOUR;
+using namespace std;
- if (!external) {
+#define port_engine AudioEngine::instance()->port_engine()
- _ext_port = 0;
- set_name (name);
+AudioPort::AudioPort (const std::string& name, PortFlags flags)
+ : Port (name, DataType::AUDIO, flags)
+ , _buffer (new AudioBuffer (0))
+{
+ assert (name.find_first_of (':') == string::npos);
+}
- } else {
-
- /* make the JackAudioPort create its own buffer. For input,
- we will copy from it during cycle_start(). For output,
- we will set up our buffer to point to its buffer, which
- will in turn be using the JACK port buffer for data.
- */
+AudioPort::~AudioPort ()
+{
+ delete _buffer;
+}
- _ext_port = new JackAudioPort (name, flags, 0);
+void
+AudioPort::cycle_start (pframes_t nframes)
+{
+ /* caller must hold process lock */
- if (sends_output()) {
- _buffer = &dynamic_cast<JackAudioPort*>(_ext_port)->get_audio_buffer();
- }
+ Port::cycle_start (nframes);
- Port::set_name (_ext_port->name());
+ if (sends_output()) {
+ _buffer->prepare ();
}
-
- reset ();
}
-AudioPort::~AudioPort()
+void
+AudioPort::cycle_end (pframes_t nframes)
{
- if (_ext_port) {
- delete _ext_port;
- _ext_port = 0;
+ if (sends_output() && !_buffer->written() && _port_handle) {
+ if (!_buffer->data (0)) {
+ get_audio_buffer (nframes);
+ }
+ if (_buffer->capacity() >= nframes) {
+ _buffer->silence (nframes);
+ }
}
}
void
-AudioPort::reset()
+AudioPort::cycle_split ()
{
- BaseAudioPort::reset();
-
- if (_ext_port) {
- _ext_port->reset ();
- }
}
-
-void
-AudioPort::cycle_start (nframes_t nframes, nframes_t offset)
+AudioBuffer&
+AudioPort::get_audio_buffer (pframes_t nframes)
{
/* caller must hold process lock */
+ assert (_port_handle);
+ _buffer->set_data ((Sample *) port_engine.get_buffer (_port_handle, _cycle_nframes) +
+ _global_port_buffer_offset + _port_buffer_offset, nframes);
+ return *_buffer;
+}
- if (_ext_port) {
- _ext_port->cycle_start (nframes, offset);
- }
-
- if (_flags & IsInput) {
-
- if (_ext_port) {
- _buffer->read_from (dynamic_cast<BaseAudioPort*>(_ext_port)->get_audio_buffer(), nframes, offset);
+Sample*
+AudioPort::engine_get_whole_audio_buffer ()
+{
+ /* caller must hold process lock */
+ assert (_port_handle);
+ return (Sample *) port_engine.get_buffer (_port_handle, _cycle_nframes);
+}
- if (!_connections.empty()) {
- (*_mixdown) (_connections, _buffer, nframes, offset, false);
- }
- } else {
-
- if (_connections.empty()) {
- _buffer->silence (nframes, offset);
- } else {
- (*_mixdown) (_connections, _buffer, nframes, offset, true);
- }
- }
- } else {
-
- // XXX if we could get the output stage to not purely mix into, but also
- // to initially overwrite the buffer, we could avoid this silence step.
-
- _buffer->silence (nframes, offset);
- }
-}
-void
-AudioPort::cycle_end (nframes_t nframes, nframes_t offset)
-{
-}