Add enums to AudioBackend class for getting standard error and device name strings

[ardour.git] / libs / ardour / ardour / audio_backend.h

diff --git a/libs/ardour/ardour/audio_backend.h b/libs/ardour/ardour/audio_backend.h
index ba8e244fcd9b7edf866c25c72b007b36a8841c3a..2bbd891e989aff1991cbf08c62e1468873f8336e 100644 (file)
--- 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.
     */