diff options
Diffstat (limited to 'backends/midi')
| -rw-r--r-- | backends/midi/coreaudio.cpp | 150 |
1 files changed, 75 insertions, 75 deletions
diff --git a/backends/midi/coreaudio.cpp b/backends/midi/coreaudio.cpp index 81b72387dd..c79454652d 100644 --- a/backends/midi/coreaudio.cpp +++ b/backends/midi/coreaudio.cpp @@ -40,9 +40,9 @@ // A macro to simplify error handling a bit. #define RequireNoErr(error) \ do { \ - OSStatus localError = error; \ - if (localError != noErr) \ - throw localError; \ + err = error; \ + if (err != noErr) \ + goto bail; \ } while (false) @@ -68,6 +68,8 @@ MidiDriver_CORE::MidiDriver_CORE() } int MidiDriver_CORE::open() { + OSStatus err = 0; + if (_auGraph) return MERR_ALREADY_OPEN; @@ -75,86 +77,84 @@ int MidiDriver_CORE::open() { // We use the AudioUnit v1 API, even though it is deprecated, because // this way we stay compatible with older OS X versions. // For v2, we'd use kAudioUnitType_MusicDevice and kAudioUnitSubType_DLSSynth - try { - RequireNoErr(NewAUGraph(&_auGraph)); - - AUNode outputNode, synthNode; - ComponentDescription desc; - - // The default output device - desc.componentType = kAudioUnitComponentType; - desc.componentSubType = kAudioUnitSubType_Output; - desc.componentManufacturer = kAudioUnitID_DefaultOutput; - desc.componentFlags = 0; - desc.componentFlagsMask = 0; - RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &outputNode)); - - // The built-in default (softsynth) music device - desc.componentSubType = kAudioUnitSubType_MusicDevice; - desc.componentManufacturer = kAudioUnitID_DLSSynth; - RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &synthNode)); - - // Connect the softsynth to the default output - RequireNoErr(AUGraphConnectNodeInput(_auGraph, synthNode, 0, outputNode, 0)); - - // Open and initialize the whole graph - RequireNoErr(AUGraphOpen(_auGraph)); - RequireNoErr(AUGraphInitialize(_auGraph)); - - // Get the music device from the graph. - RequireNoErr(AUGraphGetNodeInfo(_auGraph, synthNode, NULL, NULL, NULL, &_synth)); - - - // Load custom soundfont, if specified - if (ConfMan.hasKey("soundfont")) { - OSErr err; - FSRef fsref; - FSSpec fsSpec; - const char *soundfont = ConfMan.get("soundfont").c_str(); - - err = FSPathMakeRef ((const byte *)soundfont, &fsref, NULL); - - if (err == noErr) { - err = FSGetCatalogInfo (&fsref, kFSCatInfoNone, NULL, NULL, &fsSpec, NULL); - } - - if (err == noErr) { - // TODO: We should really check here whether the file contains an - // actual soundfont... - err = AudioUnitSetProperty ( - _synth, - kMusicDeviceProperty_SoundBankFSSpec, kAudioUnitScope_Global, - 0, - &fsSpec, sizeof(fsSpec) - ); - } - - if (err != noErr) - warning("Failed loading custom sound font '%s' (error %d)\n", soundfont, err); + RequireNoErr(NewAUGraph(&_auGraph)); + + AUNode outputNode, synthNode; + ComponentDescription desc; + + // The default output device + desc.componentType = kAudioUnitComponentType; + desc.componentSubType = kAudioUnitSubType_Output; + desc.componentManufacturer = kAudioUnitID_DefaultOutput; + desc.componentFlags = 0; + desc.componentFlagsMask = 0; + RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &outputNode)); + + // The built-in default (softsynth) music device + desc.componentSubType = kAudioUnitSubType_MusicDevice; + desc.componentManufacturer = kAudioUnitID_DLSSynth; + RequireNoErr(AUGraphNewNode(_auGraph, &desc, 0, NULL, &synthNode)); + + // Connect the softsynth to the default output + RequireNoErr(AUGraphConnectNodeInput(_auGraph, synthNode, 0, outputNode, 0)); + + // Open and initialize the whole graph + RequireNoErr(AUGraphOpen(_auGraph)); + RequireNoErr(AUGraphInitialize(_auGraph)); + + // Get the music device from the graph. + RequireNoErr(AUGraphGetNodeInfo(_auGraph, synthNode, NULL, NULL, NULL, &_synth)); + + + // Load custom soundfont, if specified + if (ConfMan.hasKey("soundfont")) { + FSRef fsref; + FSSpec fsSpec; + const char *soundfont = ConfMan.get("soundfont").c_str(); + + err = FSPathMakeRef ((const byte *)soundfont, &fsref, NULL); + + if (err == noErr) { + err = FSGetCatalogInfo (&fsref, kFSCatInfoNone, NULL, NULL, &fsSpec, NULL); } + if (err == noErr) { + // TODO: We should really check here whether the file contains an + // actual soundfont... + err = AudioUnitSetProperty ( + _synth, + kMusicDeviceProperty_SoundBankFSSpec, kAudioUnitScope_Global, + 0, + &fsSpec, sizeof(fsSpec) + ); + } + + if (err != noErr) + warning("Failed loading custom sound font '%s' (error %ld)\n", soundfont, err); + } + #ifdef COREAUDIO_DISABLE_REVERB - // Disable reverb mode, as that sucks up a lot of CPU power, which can - // be painful on low end machines. - // TODO: Make this customizable via a config key? - UInt32 usesReverb = 0; - AudioUnitSetProperty (_synth, kMusicDeviceProperty_UsesInternalReverb, - kAudioUnitScope_Global, 0, &usesReverb, sizeof (usesReverb)); + // Disable reverb mode, as that sucks up a lot of CPU power, which can + // be painful on low end machines. + // TODO: Make this customizable via a config key? + UInt32 usesReverb = 0; + AudioUnitSetProperty (_synth, kMusicDeviceProperty_UsesInternalReverb, + kAudioUnitScope_Global, 0, &usesReverb, sizeof (usesReverb)); #endif - // Finally: Start the graph! - RequireNoErr(AUGraphStart(_auGraph)); + // Finally: Start the graph! + RequireNoErr(AUGraphStart(_auGraph)); - } catch (OSStatus err) { - if (_auGraph) { - AUGraphStop(_auGraph); - DisposeAUGraph(_auGraph); - _auGraph = 0; - } - return MERR_CANNOT_CONNECT; - } return 0; + +bail: + if (_auGraph) { + AUGraphStop(_auGraph); + DisposeAUGraph(_auGraph); + _auGraph = 0; + } + return MERR_CANNOT_CONNECT; } void MidiDriver_CORE::close() { |