#include "pbd/error.h"
#include "opts.h"
+#include "debug.h"
#include "ardour_ui.h"
#include "engine_dialog.h"
#include "gui_thread.h"
using namespace Glib;
using namespace ARDOUR_UI_UTILS;
+#define DEBUG_ECONTROL(msg) DEBUG_TRACE (PBD::DEBUG::EngineControl, string_compose ("%1: %2\n", __LINE__, msg));
+
static const unsigned int midi_tab = 2;
static const unsigned int latency_tab = 1; /* zero-based, page zero is the main setup page */
, _desired_sample_rate (0)
, started_at_least_once (false)
, queue_device_changed (false)
+ , block_signals(0)
{
using namespace Notebook_Helpers;
vector<string> backend_names;
ARDOUR::AudioEngine::instance()->DeviceListChanged.connect (devicelist_connection, MISSING_INVALIDATOR, boost::bind (&EngineControl::device_list_changed, this), gui_context());
if (audio_setup) {
- set_state (*audio_setup);
- }
-
- if (backend_combo.get_active_text().empty()) {
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- backend_combo.set_active_text (backend_names.front());
+ if (!set_state (*audio_setup)) {
+ set_default_state ();
+ }
+ } else {
+ set_default_state ();
}
- backend_changed ();
-
- /* in case the setting the backend failed, e.g. stale config, from set_state(), try again */
- if (0 == ARDOUR::AudioEngine::instance()->current_backend()) {
- backend_combo.set_active_text (backend_names.back());
- /* ignore: don't save state */
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- backend_changed ();
- }
+ connect_changed_signals ();
+ notebook.signal_switch_page().connect (sigc::mem_fun (*this, &EngineControl::on_switch_page));
- /* Connect to signals */
+ connect_disconnect_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::connect_disconnect_click));
+ connect_disconnect_button.set_no_show_all();
- backend_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::backend_changed));
- driver_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::driver_changed));
- sample_rate_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::sample_rate_changed));
- buffer_size_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::buffer_size_changed));
- device_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::device_changed));
- midi_option_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::midi_option_changed));
+}
- input_device_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::input_device_changed));
- output_device_combo.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::output_device_changed));
+void
+EngineControl::connect_changed_signals ()
+{
+ backend_combo_connection = backend_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::backend_changed));
+ driver_combo_connection = driver_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::driver_changed));
+ sample_rate_combo_connection = sample_rate_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::sample_rate_changed));
+ buffer_size_combo_connection = buffer_size_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::buffer_size_changed));
+ device_combo_connection = device_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::device_changed));
+ midi_option_combo_connection = midi_option_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::midi_option_changed));
+
+ input_device_combo_connection = input_device_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::input_device_changed));
+ output_device_combo_connection = output_device_combo.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::output_device_changed));
+
+ input_latency_connection = input_latency.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ output_latency_connection = output_latency.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ input_channels_connection = input_channels.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::parameter_changed));
+ output_channels_connection = output_channels.signal_changed ().connect (
+ sigc::mem_fun (*this, &EngineControl::parameter_changed));
+}
- input_latency.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
- output_latency.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
- input_channels.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
- output_channels.signal_changed().connect (sigc::mem_fun (*this, &EngineControl::parameter_changed));
+void
+EngineControl::block_changed_signals ()
+{
+ if (block_signals++ == 0) {
+ DEBUG_ECONTROL ("Blocking changed signals");
+ backend_combo_connection.block ();
+ driver_combo_connection.block ();
+ sample_rate_combo_connection.block ();
+ buffer_size_combo_connection.block ();
+ device_combo_connection.block ();
+ input_device_combo_connection.block ();
+ output_device_combo_connection.block ();
+ midi_option_combo_connection.block ();
+ input_latency_connection.block ();
+ output_latency_connection.block ();
+ input_channels_connection.block ();
+ output_channels_connection.block ();
+ }
+}
- notebook.signal_switch_page().connect (sigc::mem_fun (*this, &EngineControl::on_switch_page));
+void
+EngineControl::unblock_changed_signals ()
+{
+ if (--block_signals == 0) {
+ DEBUG_ECONTROL ("Unblocking changed signals");
+ backend_combo_connection.unblock ();
+ driver_combo_connection.unblock ();
+ sample_rate_combo_connection.unblock ();
+ buffer_size_combo_connection.unblock ();
+ device_combo_connection.unblock ();
+ input_device_combo_connection.unblock ();
+ output_device_combo_connection.unblock ();
+ midi_option_combo_connection.unblock ();
+ input_latency_connection.unblock ();
+ output_latency_connection.unblock ();
+ input_channels_connection.unblock ();
+ output_channels_connection.unblock ();
+ }
+}
- connect_disconnect_button.signal_clicked().connect (sigc::mem_fun (*this, &EngineControl::connect_disconnect_click));
- connect_disconnect_button.set_no_show_all();
+EngineControl::SignalBlocker::SignalBlocker (EngineControl& engine_control,
+ const std::string& reason)
+ : ec (engine_control)
+ , m_reason (reason)
+{
+ DEBUG_ECONTROL (string_compose ("SignalBlocker: %1", m_reason));
+ ec.block_changed_signals ();
+}
+EngineControl::SignalBlocker::~SignalBlocker ()
+{
+ DEBUG_ECONTROL (string_compose ("~SignalBlocker: %1", m_reason));
+ ec.unblock_changed_signals ();
}
void
void
EngineControl::backend_changed ()
{
+ SignalBlocker blocker (*this, "backend_changed");
string backend_name = backend_combo.get_active_text();
boost::shared_ptr<ARDOUR::AudioBackend> backend;
return;
}
+ DEBUG_ECONTROL (string_compose ("Backend name: %1", backend_name));
+
_have_control = ARDOUR::AudioEngine::instance()->setup_required ();
build_notebook ();
_midi_devices.clear();
if (backend->requires_driver_selection()) {
- vector<string> drivers = backend->enumerate_drivers();
- driver_combo.set_sensitive (true);
-
- if (!drivers.empty()) {
- {
- string current_driver;
- current_driver = backend->driver_name ();
-
- // driver might not have been set yet
- if (current_driver == "") {
- current_driver = driver_combo.get_active_text ();
- if (current_driver == "")
- // driver has never been set, make sure it's not blank
- current_driver = drivers.front ();
- }
-
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- set_popdown_strings (driver_combo, drivers);
- driver_combo.set_active_text (current_driver);
- }
-
+ if (set_driver_popdown_strings ()) {
+ driver_combo.set_sensitive (true);
driver_changed ();
}
list_devices ();
}
+ update_midi_options ();
+
+ connect_disconnect_button.hide();
+
+ midi_option_changed();
+
+ started_at_least_once = false;
+
+ if (!ignore_changes) {
+ maybe_display_saved_state ();
+ }
+}
+
+void
+EngineControl::update_midi_options ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
vector<string> midi_options = backend->enumerate_midi_options();
if (midi_options.size() == 1) {
midi_option_combo.set_sensitive (false);
}
}
-
- connect_disconnect_button.hide();
-
- midi_option_changed();
-
- started_at_least_once = false;
-
- if (!ignore_changes) {
- maybe_display_saved_state ();
- }
}
bool
return true;
}
+// @return true if there are drivers available
bool
EngineControl::set_driver_popdown_strings ()
{
- string backend_name = backend_combo.get_active_text();
- boost::shared_ptr<ARDOUR::AudioBackend> backend;
+ DEBUG_ECONTROL ("set_driver_popdown_strings");
+ boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
+ vector<string> drivers = backend->enumerate_drivers();
- if (!(backend = ARDOUR::AudioEngine::instance()->set_backend (backend_name, "ardour", ""))) {
- /* eh? setting the backend failed... how ? */
- /* A: stale config contains a backend that does not exist in current build */
+ if (drivers.empty ()) {
+ // This is an error...?
return false;
}
- vector<string> drivers = backend->enumerate_drivers();
+ string current_driver = backend->driver_name ();
+
+ DEBUG_ECONTROL (string_compose ("backend->driver_name: %1", current_driver));
+
+ if (std::find (drivers.begin (), drivers.end (), current_driver) ==
+ drivers.end ()) {
+
+ current_driver = drivers.front ();
+ }
+
set_popdown_strings (driver_combo, drivers);
+ DEBUG_ECONTROL (
+ string_compose ("driver_combo.set_active_text: %1", current_driver));
+ driver_combo.set_active_text (current_driver);
return true;
}
bool
EngineControl::set_device_popdown_strings ()
{
+ DEBUG_ECONTROL ("set_device_popdown_strings");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
vector<ARDOUR::AudioBackend::DeviceStatus> all_devices = backend->enumerate_devices ();
available_devices.push_back (i->name);
}
+ if (available_devices.empty ()) {
+ return false;
+ }
- if (!available_devices.empty()) {
+ string current_device = backend->device_name ();
- {
- string current_device, found_device;
- current_device = device_combo.get_active_text ();
- if (current_device == "") {
- current_device = backend->device_name ();
- }
-
- // Make sure that the active text is still relevant for this
- // device (it might only be relevant to the previous device!!)
- for (vector<string>::const_iterator i = available_devices.begin(); i != available_devices.end(); ++i) {
- if (*i == current_device)
- found_device = current_device;
- }
- if (found_device == "")
- // device has never been set (or was not relevant
- // for this backend) Let's make sure it's not blank
- current_device = available_devices.front ();
+ // Make sure that backend->device_name () is a valid
+ // device, the backend may not return a valid device if it hasn't
+ // been set yet.
+ if (std::find (available_devices.begin (),
+ available_devices.end (),
+ current_device) == available_devices.end ()) {
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- set_popdown_strings (device_combo, available_devices);
+ current_device = available_devices.front ();
+ }
- device_combo.set_active_text (current_device);
- }
+ set_popdown_strings (device_combo, available_devices);
+ DEBUG_ECONTROL (
+ string_compose ("set device_combo active text: %1", current_device));
- device_changed ();
- return true;
- }
- return false;
+ device_combo.set_active_text (current_device);
+ return true;
}
// @return true if there are input devices available
bool
EngineControl::set_input_device_popdown_strings ()
{
+ DEBUG_ECONTROL ("set_input_device_popdown_strings");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
vector<ARDOUR::AudioBackend::DeviceStatus> all_devices = backend->enumerate_input_devices ();
available_devices.push_back (i->name);
}
- if (!available_devices.empty()) {
-
- {
- string current_device, found_device;
- current_device = input_device_combo.get_active_text ();
- if (current_device == "") {
- current_device = backend->input_device_name ();
- }
-
- // Make sure that the active text is still relevant for this
- // device (it might only be relevant to the previous device!!)
- for (vector<string>::const_iterator i = available_devices.begin(); i != available_devices.end(); ++i) {
- if (*i == current_device)
- found_device = current_device;
- }
- if (found_device == "")
- // device has never been set (or was not relevant
- // for this backend) Let's make sure it's not blank
- current_device = available_devices.front ();
+ if (available_devices.empty()) {
+ return false;
+ }
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- set_popdown_strings (input_device_combo, available_devices);
+ string current_device = backend->input_device_name ();
- input_device_combo.set_active_text (current_device);
- }
+ // Make sure that backend->input_device_name () is a valid
+ // device, the backend may not return a valid device if it hasn't
+ // been set yet.
+ if (std::find (available_devices.begin (),
+ available_devices.end (),
+ current_device) == available_devices.end ()) {
- device_changed ();
- return true;
+ current_device = available_devices.front ();
}
- return false;
+ set_popdown_strings (input_device_combo, available_devices);
+
+ DEBUG_ECONTROL (
+ string_compose ("set input_device_combo active text: %1", current_device));
+ input_device_combo.set_active_text (current_device);
+ return true;
}
// @return true if there are output devices available
bool
EngineControl::set_output_device_popdown_strings ()
{
+ DEBUG_ECONTROL ("set_output_device_popdown_strings");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
vector<ARDOUR::AudioBackend::DeviceStatus> all_devices = backend->enumerate_output_devices ();
available_devices.push_back (i->name);
}
- if (!available_devices.empty()) {
-
- {
- string current_device, found_device;
- current_device = output_device_combo.get_active_text ();
- if (current_device == "") {
- current_device = backend->output_device_name ();
- }
-
- // Make sure that the active text is still relevant for this
- // device (it might only be relevant to the previous device!!)
- for (vector<string>::const_iterator i = available_devices.begin(); i != available_devices.end(); ++i) {
- if (*i == current_device)
- found_device = current_device;
- }
- if (found_device == "")
- // device has never been set (or was not relevant
- // for this backend) Let's make sure it's not blank
- current_device = available_devices.front ();
+ if (available_devices.empty()) {
+ return false;
+ }
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- set_popdown_strings (output_device_combo, available_devices);
+ string current_device = backend->output_device_name ();
- output_device_combo.set_active_text (current_device);
- }
+ // Make sure that backend->output_device_name () is a valid
+ // device, the backend may not return a valid device if it hasn't
+ // been set yet.
+ if (std::find (available_devices.begin (),
+ available_devices.end (),
+ current_device) == available_devices.end ()) {
- device_changed ();
- return true;
+ current_device = available_devices.front ();
}
- return false;
+ set_popdown_strings (output_device_combo, available_devices);
+
+ DEBUG_ECONTROL (
+ string_compose ("set output_device_combo active text: %1", current_device));
+ output_device_combo.set_active_text (current_device);
+ return true;
}
void
EngineControl::list_devices ()
{
+ DEBUG_ECONTROL ("list_devices");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
assert (backend);
}
if (devices_available) {
+ device_changed ();
+
input_latency.set_sensitive (true);
output_latency.set_sensitive (true);
input_channels.set_sensitive (true);
void
EngineControl::driver_changed ()
{
+ SignalBlocker blocker (*this, "driver_changed");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
assert (backend);
}
}
+vector<float>
+EngineControl::get_sample_rates_for_all_devices ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend =
+ ARDOUR::AudioEngine::instance ()->current_backend ();
+ vector<float> all_rates;
+
+ if (backend->use_separate_input_and_output_devices ()) {
+ all_rates = backend->available_sample_rates (get_input_device_name (), get_output_device_name ());
+ } else {
+ all_rates = backend->available_sample_rates (get_device_name ());
+ }
+ return all_rates;
+}
+
+vector<float>
+EngineControl::get_default_sample_rates ()
+{
+ vector<float> rates;
+ rates.push_back (8000.0f);
+ rates.push_back (16000.0f);
+ rates.push_back (32000.0f);
+ rates.push_back (44100.0f);
+ rates.push_back (48000.0f);
+ rates.push_back (88200.0f);
+ rates.push_back (96000.0f);
+ rates.push_back (192000.0f);
+ rates.push_back (384000.0f);
+ return rates;
+}
+
void
-EngineControl::set_samplerate_popdown_strings (const std::string& device_name)
+EngineControl::set_samplerate_popdown_strings ()
{
+ DEBUG_ECONTROL ("set_samplerate_popdown_strings");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
string desired;
vector<float> sr;
vector<string> s;
if (_have_control) {
- sr = backend->available_sample_rates (device_name);
+ sr = get_sample_rates_for_all_devices ();
+ // currently possible if both devices are set to "None" and the backend
+ // returns no supported rates for both devices
+ if (sr.empty()) {
+ sr = get_default_sample_rates ();
+ }
} else {
-
- sr.push_back (8000.0f);
- sr.push_back (16000.0f);
- sr.push_back (32000.0f);
- sr.push_back (44100.0f);
- sr.push_back (48000.0f);
- sr.push_back (88200.0f);
- sr.push_back (96000.0f);
- sr.push_back (192000.0f);
- sr.push_back (384000.0f);
+ sr = get_default_sample_rates ();
}
for (vector<float>::const_iterator x = sr.begin(); x != sr.end(); ++x) {
sample_rate_combo.set_sensitive (true);
set_popdown_strings (sample_rate_combo, s);
- if (desired.empty()) {
- sample_rate_combo.set_active_text (rate_as_string (backend->default_sample_rate()));
+ if (desired.empty ()) {
+ float new_active_sr = backend->default_sample_rate ();
+
+ if (std::find (sr.begin (), sr.end (), new_active_sr) == sr.end ()) {
+ new_active_sr = sr.front ();
+ }
+
+ sample_rate_combo.set_active_text (rate_as_string (new_active_sr));
} else {
sample_rate_combo.set_active_text (desired);
}
}
}
+vector<uint32_t>
+EngineControl::get_buffer_sizes_for_all_devices ()
+{
+ boost::shared_ptr<ARDOUR::AudioBackend> backend =
+ ARDOUR::AudioEngine::instance ()->current_backend ();
+ vector<uint32_t> all_sizes;
+
+ if (backend->use_separate_input_and_output_devices ()) {
+ all_sizes = backend->available_buffer_sizes (get_input_device_name (), get_output_device_name ());
+ } else {
+ all_sizes = backend->available_buffer_sizes (get_device_name ());
+ }
+ return all_sizes;
+}
+
+vector<uint32_t>
+EngineControl::get_default_buffer_sizes ()
+{
+ vector<uint32_t> sizes;
+ sizes.push_back (8);
+ sizes.push_back (16);
+ sizes.push_back (32);
+ sizes.push_back (64);
+ sizes.push_back (128);
+ sizes.push_back (256);
+ sizes.push_back (512);
+ sizes.push_back (1024);
+ sizes.push_back (2048);
+ sizes.push_back (4096);
+ sizes.push_back (8192);
+ return sizes;
+}
+
void
-EngineControl::set_buffersize_popdown_strings (const std::string& device_name)
+EngineControl::set_buffersize_popdown_strings ()
{
+ DEBUG_ECONTROL ("set_buffersize_popdown_strings");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
vector<uint32_t> bs;
vector<string> s;
+ string device_name;
if (_have_control) {
- bs = backend->available_buffer_sizes (device_name);
+ bs = get_buffer_sizes_for_all_devices ();
+ // currently possible if both devices are set to "None" and the backend
+ // returns no supported sizes for both devices
+ if (bs.empty()) {
+ bs = get_default_buffer_sizes ();
+ }
} else if (backend->can_change_buffer_size_when_running()) {
- bs.push_back (8);
- bs.push_back (16);
- bs.push_back (32);
- bs.push_back (64);
- bs.push_back (128);
- bs.push_back (256);
- bs.push_back (512);
- bs.push_back (1024);
- bs.push_back (2048);
- bs.push_back (4096);
- bs.push_back (8192);
- }
- s.clear ();
+ bs = get_default_buffer_sizes ();
+ }
+
for (vector<uint32_t>::const_iterator x = bs.begin(); x != bs.end(); ++x) {
s.push_back (bufsize_as_string (*x));
}
+ if (backend->use_separate_input_and_output_devices ()) {
+ device_name = get_input_device_name ();
+ } else {
+ device_name = get_device_name ();
+ }
+
if (!s.empty()) {
buffer_size_combo.set_sensitive (true);
set_popdown_strings (buffer_size_combo, s);
void
EngineControl::device_changed ()
{
+ SignalBlocker blocker (*this, "device_changed");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
assert (backend);
*/
PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- /* backends that support separate devices, need to ignore
- * the device-name - and use the devies set above
- */
- set_samplerate_popdown_strings (device_name_in);
- set_buffersize_popdown_strings (device_name_in);
+ set_samplerate_popdown_strings ();
+ set_buffersize_popdown_strings ();
/* XXX theoretically need to set min + max channel counts here
*/
void
EngineControl::input_device_changed ()
{
+ DEBUG_ECONTROL ("input_device_changed");
device_changed ();
}
void
EngineControl::output_device_changed ()
{
+ DEBUG_ECONTROL ("output_device_changed");
device_changed ();
}
void
EngineControl::sample_rate_changed ()
{
+ DEBUG_ECONTROL ("sample_rate_changed");
/* reset the strings for buffer size to show the correct msec value
(reflecting the new sample rate).
*/
void
EngineControl::buffer_size_changed ()
{
+ DEBUG_ECONTROL ("buffer_size_changed");
show_buffer_duration ();
}
void
EngineControl::show_buffer_duration ()
{
-
+ DEBUG_ECONTROL ("show_buffer_duration");
/* buffer sizes - convert from just samples to samples + msecs for
* the displayed string
*/
void
EngineControl::midi_option_changed ()
{
+ DEBUG_ECONTROL ("midi_option_changed");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
assert (backend);
}
void
+EngineControl::set_default_state ()
+{
+ vector<string> backend_names;
+ vector<const ARDOUR::AudioBackendInfo*> backends = ARDOUR::AudioEngine::instance()->available_backends();
+
+ for (vector<const ARDOUR::AudioBackendInfo*>::const_iterator b = backends.begin(); b != backends.end(); ++b) {
+ backend_names.push_back ((*b)->name);
+ }
+ backend_combo.set_active_text (backend_names.front());
+
+ // We could set default backends per platform etc here
+
+ backend_changed ();
+}
+
+bool
EngineControl::set_state (const XMLNode& root)
{
XMLNodeList clist, cclist;
fprintf (stderr, "EngineControl::set_state\n");
if (root.name() != "AudioMIDISetup") {
- return;
+ return false;
}
clist = root.children();
for (StateList::const_iterator i = states.begin(); i != states.end(); ++i) {
if ((*i)->active) {
- PBD::Unwinder<uint32_t> protect_ignore_changes (ignore_changes, ignore_changes + 1);
- backend_combo.set_active_text ((*i)->backend);
+ return set_current_state (*i);
+ }
+ }
+ return false;
+}
- /* The driver popdown strings need to be populated now so that
- * set_active_text will actually set a valid entry. Then
- * backend_changed() will populate all the other combo's so they
- * can also be set to valid entries and the state will be restored
- * correctly.
- */
- if (!(*i)->driver.empty()) {
- set_driver_popdown_strings ();
- }
- driver_combo.set_active_text ((*i)->driver);
- backend_changed ();
-
- device_combo.set_active_text ((*i)->device);
- input_device_combo.set_active_text ((*i)->input_device);
- output_device_combo.set_active_text ((*i)->output_device);
- sample_rate_combo.set_active_text (rate_as_string ((*i)->sample_rate));
- set_active_text_if_present (buffer_size_combo, bufsize_as_string ((*i)->buffer_size));
- input_latency.set_value ((*i)->input_latency);
- output_latency.set_value ((*i)->output_latency);
- midi_option_combo.set_active_text ((*i)->midi_option);
- break;
+bool
+EngineControl::set_current_state (const State& state)
+{
+ DEBUG_ECONTROL ("set_current_state");
+
+ boost::shared_ptr<ARDOUR::AudioBackend> backend;
+
+ if (!(backend = ARDOUR::AudioEngine::instance ()->set_backend (
+ state->backend, "ardour", ""))) {
+ DEBUG_ECONTROL (string_compose ("Unable to set backend to %1", state->backend));
+ // this shouldn't happen as the invalid backend names should have been
+ // removed from the list of states.
+ return false;
+ }
+
+ // now reflect the change in the backend in the GUI so backend_changed will
+ // do the right thing
+ backend_combo.set_active_text (state->backend);
+
+ if (!state->driver.empty ()) {
+ if (!backend->requires_driver_selection ()) {
+ DEBUG_ECONTROL ("Backend should require driver selection");
+ // A backend has changed from having driver selection to not having
+ // it or someone has been manually editing a config file and messed
+ // it up
+ return false;
+ }
+
+ if (backend->set_driver (state->driver) != 0) {
+ DEBUG_ECONTROL (string_compose ("Unable to set driver %1", state->driver));
+ // Driver names for a backend have changed and the name in the
+ // config file is now invalid or support for driver is no longer
+ // included in the backend
+ return false;
}
+ // no need to set the driver_combo as backend_changed will use
+ // backend->driver_name to set the active driver
}
+
+ if (!state->device.empty ()) {
+ if (backend->set_device_name (state->device) != 0) {
+ DEBUG_ECONTROL (
+ string_compose ("Unable to set device name %1", state->device));
+ // device is no longer available on the system
+ return false;
+ }
+ // no need to set active device as it will be picked up in
+ // via backend_changed ()/set_device_popdown_strings
+
+ } else {
+ // backend supports separate input/output devices
+ if (backend->set_input_device_name (state->input_device) != 0) {
+ DEBUG_ECONTROL (string_compose ("Unable to set input device name %1",
+ state->input_device));
+ // input device is no longer available on the system
+ return false;
+ }
+
+ if (backend->set_output_device_name (state->output_device) != 0) {
+ DEBUG_ECONTROL (string_compose ("Unable to set output device name %1",
+ state->input_device));
+ // output device is no longer available on the system
+ return false;
+ }
+ // no need to set active devices as it will be picked up in via
+ // backend_changed ()/set_*_device_popdown_strings
+ }
+
+ backend_changed ();
+
+ // Now restore the state of the rest of the controls
+
+ // We don't use a SignalBlocker as set_current_state is currently only
+ // called from set_state before any signals are connected. If at some point
+ // a more general named state mechanism is implemented and
+ // set_current_state is called while signals are connected then a
+ // SignalBlocker will need to be instantiated before setting these.
+
+ device_combo.set_active_text (state->device);
+ input_device_combo.set_active_text (state->input_device);
+ output_device_combo.set_active_text (state->output_device);
+ sample_rate_combo.set_active_text (rate_as_string (state->sample_rate));
+ set_active_text_if_present (buffer_size_combo, bufsize_as_string (state->buffer_size));
+ input_latency.set_value (state->input_latency);
+ output_latency.set_value (state->output_latency);
+ midi_option_combo.set_active_text (state->midi_option);
+ return true;
}
int
EngineControl::push_state_to_backend (bool start)
{
+ DEBUG_ECONTROL ("push_state_to_backend");
boost::shared_ptr<ARDOUR::AudioBackend> backend = ARDOUR::AudioEngine::instance()->current_backend();
if (!backend) {
projects / ardour.git / blobdiff