#include "pbd/stacktrace.h"
#include "pbd/unknown_type.h"
-#include <jack/weakjack.h>
-
#include "midi++/port.h"
#include "midi++/mmc.h"
#include "ardour/audio_port.h"
#include "ardour/audio_backend.h"
#include "ardour/audioengine.h"
-#include "ardour/backend_search_path.h"
+#include "ardour/search_paths.h"
#include "ardour/buffer.h"
#include "ardour/cycle_timer.h"
#include "ardour/internal_send.h"
, _latency_output_port (0)
, _latency_flush_frames (0)
, _latency_signal_latency (0)
- , _started_for_latency (false)
+ , _stopped_for_latency (false)
+ , _in_destructor (false)
{
g_atomic_int_set (&m_meter_exit, 0);
discover_backends ();
AudioEngine::~AudioEngine ()
{
+ _in_destructor = true;
+ stop_metering_thread ();
drop_backend ();
-
- config_connection.disconnect ();
-
- {
- Glib::Threads::Mutex::Lock tm (_process_lock);
- session_removed.signal ();
- stop_metering_thread ();
- }
}
AudioEngine*
Glib::PatternSpec so_extension_pattern("*backend.so");
Glib::PatternSpec dylib_extension_pattern("*backend.dylib");
+#if defined(PLATFORM_WINDOWS) && defined(DEBUGGABLE_BACKENDS)
+ #if defined(DEBUG) || defined(_DEBUG)
+ Glib::PatternSpec dll_extension_pattern("*backendD.dll");
+ #else
+ Glib::PatternSpec dll_extension_pattern("*backendRDC.dll");
+ #endif
+#else
+ Glib::PatternSpec dll_extension_pattern("*backend*.dll");
+#endif
+
find_matching_files_in_search_path (backend_search_path (),
so_extension_pattern, backend_modules);
find_matching_files_in_search_path (backend_search_path (),
dylib_extension_pattern, backend_modules);
- DEBUG_TRACE (DEBUG::Panning, string_compose (_("looking for backends in %1\n"), backend_search_path().to_string()));
+ find_matching_files_in_search_path (backend_search_path (),
+ dll_extension_pattern, backend_modules);
+
+ DEBUG_TRACE (DEBUG::AudioEngine, string_compose ("looking for backends in %1\n", backend_search_path().to_string()));
for (vector<std::string>::iterator i = backend_modules.begin(); i != backend_modules.end(); ++i) {
AudioBackendInfo* info;
+ DEBUG_TRACE (DEBUG::AudioEngine, string_compose ("Checking possible backend in %1\n", *i));
+
if ((info = backend_discover (*i)) != 0) {
_backends.insert (make_pair (info->name, info));
}
}
+ DEBUG_TRACE (DEBUG::AudioEngine, string_compose ("Found %1 backends\n", _backends.size()));
+
return _backends.size();
}
{
if (_backend) {
_backend->stop ();
+ _backend->drop_device();
_backend.reset ();
}
}
+boost::shared_ptr<AudioBackend>
+AudioEngine::set_default_backend ()
+{
+ if (_backends.empty()) {
+ return boost::shared_ptr<AudioBackend>();
+ }
+
+ return set_backend (_backends.begin()->first, "", "");
+}
+
boost::shared_ptr<AudioBackend>
AudioEngine::set_backend (const std::string& name, const std::string& arg1, const std::string& arg2)
{
if (b->second->instantiate (arg1, arg2)) {
throw failed_constructor ();
}
-
+
_backend = b->second->factory (*this);
} catch (exception& e) {
/* BACKEND PROXY WRAPPERS */
int
-AudioEngine::start ()
+AudioEngine::start (bool for_latency)
{
if (!_backend) {
return -1;
_processed_frames = 0;
last_monitor_check = 0;
- if (_backend->start()) {
+ if (_backend->start (for_latency)) {
return -1;
}
start_metering_thread ();
- if (!_started_for_latency) {
+ if (!for_latency) {
Running(); /* EMIT SIGNAL */
}
}
int
-AudioEngine::stop ()
+AudioEngine::stop (bool for_latency)
{
if (!_backend) {
return 0;
stop_metering_thread ();
Port::PortDrop ();
- Stopped (); /* EMIT SIGNAL */
-
- return 0;
-}
-int
-AudioEngine::pause ()
-{
- if (!_backend) {
- return 0;
- }
-
- if (_backend->pause ()) {
- return -1;
+ if (!for_latency) {
+ Stopped (); /* EMIT SIGNAL */
}
-
- _running = false;
- Stopped(); /* EMIT SIGNAL */
return 0;
}
}
float
-AudioEngine::get_cpu_load() const
+AudioEngine::get_dsp_load() const
{
if (!_backend) {
return 0.0;
}
- return _backend->cpu_load ();
+ return _backend->dsp_load ();
}
bool
return _backend->set_buffer_size (bufsiz);
}
-int
-AudioEngine::set_sample_format (SampleFormat sf)
-{
- if (!_backend) {
- return -1;
- }
- return _backend->set_sample_format (sf);
-}
-
int
AudioEngine::set_interleaved (bool yn)
{
void
AudioEngine::halted_callback (const char* why)
{
+ if (_in_destructor) {
+ /* everything is under control */
+ return;
+ }
+
stop_metering_thread ();
_running = false;
Port::PortDrop (); /* EMIT SIGNAL */
- Halted (why); /* EMIT SIGNAL */
+
+ if (!_started_for_latency) {
+ Halted (why); /* EMIT SIGNAL */
+ }
}
bool
AudioEngine::setup_required () const
{
- /* If there is only a single backend and it claims to be configured
- * already there is no setup to be done.
- *
- * Primarily for a case where there is only a JACK backend and
- * JACK is already running.
- */
-
- if (_backends.size() == 1 && _backends.begin()->second->already_configured()) {
- return false;
+ if (_backend) {
+ if (_backend->info().already_configured())
+ return false;
+ } else {
+ if (_backends.size() == 1 && _backends.begin()->second->already_configured()) {
+ return false;
+ }
}
-
+
return true;
}
int
AudioEngine::prepare_for_latency_measurement ()
{
- if (!running()) {
- _started_for_latency = true;
+ if (running()) {
+ _stopped_for_latency = true;
+ stop (true);
+ }
- if (start()) {
- _started_for_latency = false;
- return -1;
- }
+ if (start (true)) {
+ _started_for_latency = true;
+ return -1;
}
return 0;
}
-void
+int
AudioEngine::start_latency_detection ()
{
- if (prepare_for_latency_measurement ()) {
- return;
+ if (!running()) {
+ if (prepare_for_latency_measurement ()) {
+ return -1;
+ }
}
PortEngine& pe (port_engine());
/* find the ports we will connect to */
- PortEngine::PortHandle* out = pe.get_port_by_name (_latency_output_name);
- PortEngine::PortHandle* in = pe.get_port_by_name (_latency_input_name);
+ PortEngine::PortHandle out = pe.get_port_by_name (_latency_output_name);
+ PortEngine::PortHandle in = pe.get_port_by_name (_latency_input_name);
if (!out || !in) {
- return;
+ stop (true);
+ return -1;
}
/* create the ports we will use to read/write data */
if ((_latency_output_port = pe.register_port ("latency_out", DataType::AUDIO, IsOutput)) == 0) {
- return;
+ stop (true);
+ return -1;
}
if (pe.connect (_latency_output_port, _latency_output_name)) {
pe.unregister_port (_latency_output_port);
- return;
+ stop (true);
+ return -1;
}
const string portname ("latency_in");
if ((_latency_input_port = pe.register_port (portname, DataType::AUDIO, IsInput)) == 0) {
pe.unregister_port (_latency_output_port);
- return;
+ stop (true);
+ return -1;
}
if (pe.connect (_latency_input_name, make_port_name_non_relative (portname))) {
pe.unregister_port (_latency_output_port);
- return;
+ stop (true);
+ return -1;
}
LatencyRange lr;
_measuring_latency = true;
_latency_flush_frames = samples_per_cycle();
+ return 0;
}
void
port_engine().unregister_port (_latency_input_port);
_latency_input_port = 0;
}
- if (_started_for_latency) {
- stop ();
+
+ stop (true);
+
+ if (_stopped_for_latency) {
+ start ();
}
+
+ _stopped_for_latency = false;
+ _started_for_latency = false;
}
void