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-rw-r--r--libs/ardour/ardour/audio_backend.h37
-rw-r--r--libs/ardour/audio_backend.cc96
-rw-r--r--libs/ardour/wscript1
3 files changed, 134 insertions, 0 deletions
diff --git a/libs/ardour/ardour/audio_backend.h b/libs/ardour/ardour/audio_backend.h
index ba8e244fcd..2bbd891e98 100644
--- a/libs/ardour/ardour/audio_backend.h
+++ b/libs/ardour/ardour/audio_backend.h
@@ -86,6 +86,43 @@ class LIBARDOUR_API AudioBackend : public PortEngine {
AudioBackend (AudioEngine& e, AudioBackendInfo& i) : PortEngine (e), _info (i), engine (e) {}
virtual ~AudioBackend () {}
+ enum ErrorCode {
+ NoError = 0,
+ BackendInitializationError = -64,
+ BackendDeinitializationError,
+ AudioDeviceOpenError,
+ AudioDeviceCloseError,
+ AudioDeviceNotAvailableError,
+ AudioDeviceNotConnectedError,
+ AudioDeviceReservationError,
+ AudioDeviceIOError,
+ MidiDeviceOpenError,
+ MidiDeviceCloseError,
+ MidiDeviceNotAvailableError,
+ MidiDeviceNotConnectedError,
+ MidiDeviceIOError,
+ SampleRateNotSupportedError,
+ RequestedInputLatencyNotSupportedError,
+ RequestedOutputLatencyNotSupportedError,
+ PeriodSizeNotSupportedError,
+ PeriodCountNotSupportedError,
+ DeviceConfigurationNotSupportedError,
+ InputChannelCountNotSupportedError,
+ OutputChannelCountNotSupportedError,
+ AquireRealtimePermissionError,
+ SettingAudioThreadPriorityError,
+ SettingMIDIThreadPriorityError
+ };
+
+ static std::string get_error_string (ErrorCode);
+
+ enum StandardDeviceName {
+ DeviceNone,
+ DeviceDefault
+ };
+
+ static std::string get_standard_device_name (StandardDeviceName);
+
/** Return the AudioBackendInfo object from which this backend
was constructed.
*/
diff --git a/libs/ardour/audio_backend.cc b/libs/ardour/audio_backend.cc
new file mode 100644
index 0000000000..225b64dbf1
--- /dev/null
+++ b/libs/ardour/audio_backend.cc
@@ -0,0 +1,96 @@
+/*
+ Copyright (C) 2015 Tim Mayberry
+
+ 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
+ the Free Software Foundation; either version 2 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+*/
+
+#include "ardour/audio_backend.h"
+
+#include "i18n.h"
+
+namespace ARDOUR {
+
+std::string
+AudioBackend::get_error_string (ErrorCode error_code)
+{
+ switch (error_code) {
+ case NoError: // to stop compiler warning
+ return _("No Error occurred");
+ case BackendInitializationError:
+ return _("Failed to initialize audio backend");
+ case BackendDeinitializationError:
+ return _("Failed to deinitialize audio backend");
+ case AudioDeviceOpenError:
+ return _("Failed to open audio device");
+ case AudioDeviceCloseError:
+ return _("Failed to close audio device");
+ case AudioDeviceNotAvailableError:
+ return _("Audio device unavailable");
+ case AudioDeviceNotConnectedError:
+ return _("Audio device not connected");
+ case AudioDeviceReservationError:
+ return _("Failed to request and reserve audio device");
+ case AudioDeviceIOError:
+ return _("Audio device Input/Output error");
+ case MidiDeviceOpenError:
+ return _("Failed to open MIDI device");
+ case MidiDeviceCloseError:
+ return _("Failed to close MIDI device");
+ case MidiDeviceNotAvailableError:
+ return _("MIDI device unavailable");
+ case MidiDeviceNotConnectedError:
+ return _("MIDI device not connected");
+ case MidiDeviceIOError:
+ return _("MIDI device Input/Output error");
+ case SampleRateNotSupportedError:
+ return _("Sample rate is not supported");
+ case RequestedInputLatencyNotSupportedError:
+ return _("Requested input latency is not supported");
+ case RequestedOutputLatencyNotSupportedError:
+ return _("Requested output latency is not supported");
+ case PeriodSizeNotSupportedError:
+ return _("Period size is not supported");
+ case PeriodCountNotSupportedError:
+ return _("Period count is not supported");
+ case DeviceConfigurationNotSupportedError:
+ return _("Device configuration not supported");
+ case InputChannelCountNotSupportedError:
+ return _("Input channel count configuration not supported");
+ case OutputChannelCountNotSupportedError:
+ return _("Output channel count configuration not supported");
+ case AquireRealtimePermissionError:
+ return _("Unable to aquire realtime permissions");
+ case SettingAudioThreadPriorityError:
+ return _("Setting audio device thread priorities failed");
+ case SettingMIDIThreadPriorityError:
+ return _("Setting MIDI device thread priorities failed");
+ }
+ return std::string();
+}
+
+std::string
+AudioBackend::get_standard_device_name (StandardDeviceName device_name)
+{
+ switch (device_name) {
+ case DeviceNone:
+ return _("None");
+ case DeviceDefault:
+ return _("Default");
+ }
+ return std::string();
+}
+
+} // namespace ARDOUR
diff --git a/libs/ardour/wscript b/libs/ardour/wscript
index c732161ec8..c0049b55fe 100644
--- a/libs/ardour/wscript
+++ b/libs/ardour/wscript
@@ -22,6 +22,7 @@ libardour_sources = [
'amp.cc',
'analyser.cc',
'async_midi_port.cc',
+ 'audio_backend.cc',
'audio_buffer.cc',
'audio_diskstream.cc',
'audio_library.cc',