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Added MIDI output handling to AudioUnit wrapper.

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This commit is contained in:
jules 2013-09-19 09:43:13 +01:00
parent f4bc1e033d
commit 085e453f10
1 changed files with 125 additions and 64 deletions
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189
modules/juce_audio_plugin_client/AU/juce_AU_Wrapper.mm
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@ -45,6 +45,7 @@
#include <AudioUnit/AUCocoaUIView.h>
#include <AudioUnit/AudioUnit.h>
#include <AudioToolbox/AudioUnitUtilities.h>
#include <CoreMIDI/MIDIServices.h>
#if JUCE_SUPPORT_CARBON
#define Point CarbonDummyPointName
@ -160,6 +161,8 @@ public:
auEvent.mArgument.mParameter.mScope = kAudioUnitScope_Global;
auEvent.mArgument.mParameter.mElement = 0;
zerostruct (midiCallback);
CreateElements();
CAStreamBasicDescription streamDescription;
@ -206,26 +209,24 @@ public:
{
if (inScope == kAudioUnitScope_Global)
{
if (inID == juceFilterObjectPropertyID)
switch (inID)
{
case juceFilterObjectPropertyID:
outWritable = false;
outDataSize = sizeof (void*) * 2;
return noErr;
}
else if (inID == kAudioUnitProperty_OfflineRender)
{
case kAudioUnitProperty_OfflineRender:
outWritable = true;
outDataSize = sizeof (UInt32);
return noErr;
}
else if (inID == kMusicDeviceProperty_InstrumentCount)
{
case kMusicDeviceProperty_InstrumentCount:
outDataSize = sizeof (UInt32);
outWritable = false;
return noErr;
}
else if (inID == kAudioUnitProperty_CocoaUI)
{
case kAudioUnitProperty_CocoaUI:
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
// (On 10.4, there's a random obj-c dispatching crash when trying to load a cocoa UI)
if (SystemStats::getOperatingSystemType() >= SystemStats::MacOSX_10_5)
@ -235,6 +236,22 @@ public:
outWritable = true;
return noErr;
}
break;
#if JucePlugin_ProducesMidiOutput
case kAudioUnitProperty_MIDIOutputCallbackInfo:
outDataSize = sizeof (CFArrayRef);
outWritable = false;
return noErr;
case kAudioUnitProperty_MIDIOutputCallback:
outDataSize = sizeof (AUMIDIOutputCallbackStruct);
outWritable = true;
return noErr;
#endif
default: break;
}
}
@ -248,43 +265,57 @@ public:
{
if (inScope == kAudioUnitScope_Global)
{
if (inID == juceFilterObjectPropertyID)
switch (inID)
{
((void**) outData)[0] = (void*) static_cast <AudioProcessor*> (juceFilter);
((void**) outData)[1] = (void*) this;
return noErr;
}
else if (inID == kAudioUnitProperty_OfflineRender)
{
*(UInt32*) outData = (juceFilter != nullptr && juceFilter->isNonRealtime()) ? 1 : 0;
return noErr;
}
else if (inID == kMusicDeviceProperty_InstrumentCount)
{
*(UInt32*) outData = 1;
return noErr;
}
else if (inID == kAudioUnitProperty_CocoaUI)
{
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
// (On 10.4, there's a random obj-c dispatching crash when trying to load a cocoa UI)
if (SystemStats::getOperatingSystemType() >= SystemStats::MacOSX_10_5)
#endif
{
JUCE_AUTORELEASEPOOL
case juceFilterObjectPropertyID:
((void**) outData)[0] = (void*) static_cast <AudioProcessor*> (juceFilter);
((void**) outData)[1] = (void*) this;
return noErr;
case kAudioUnitProperty_OfflineRender:
*(UInt32*) outData = (juceFilter != nullptr && juceFilter->isNonRealtime()) ? 1 : 0;
return noErr;
case kMusicDeviceProperty_InstrumentCount:
*(UInt32*) outData = 1;
return noErr;
case kAudioUnitProperty_CocoaUI:
#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_5
// (On 10.4, there's a random obj-c dispatching crash when trying to load a cocoa UI)
if (SystemStats::getOperatingSystemType() >= SystemStats::MacOSX_10_5)
#endif
{
static JuceUICreationClass cls;
JUCE_AUTORELEASEPOOL
{
static JuceUICreationClass cls;
// (NB: this may be the host's bundle, not necessarily the component's)
NSBundle* bundle = [NSBundle bundleForClass: cls.cls];
// (NB: this may be the host's bundle, not necessarily the component's)
NSBundle* bundle = [NSBundle bundleForClass: cls.cls];
AudioUnitCocoaViewInfo* info = static_cast <AudioUnitCocoaViewInfo*> (outData);
info->mCocoaAUViewClass[0] = (CFStringRef) [juceStringToNS (class_getName (cls.cls)) retain];
info->mCocoaAUViewBundleLocation = (CFURLRef) [[NSURL fileURLWithPath: [bundle bundlePath]] retain];
AudioUnitCocoaViewInfo* info = static_cast <AudioUnitCocoaViewInfo*> (outData);
info->mCocoaAUViewClass[0] = (CFStringRef) [juceStringToNS (class_getName (cls.cls)) retain];
info->mCocoaAUViewBundleLocation = (CFURLRef) [[NSURL fileURLWithPath: [bundle bundlePath]] retain];
}
return noErr;
}
break;
#if JucePlugin_ProducesMidiOutput
case kAudioUnitProperty_MIDIOutputCallbackInfo:
{
CFStringRef strs[1];
strs[0] = CFSTR ("MIDI Callback");
CFArrayRef callbackArray = CFArrayCreate (nullptr, (const void**) strs, 1, &kCFTypeArrayCallBacks);
*(CFArrayRef*) outData = callbackArray;
return noErr;
}
#endif
default: break;
}
}
@ -297,12 +328,29 @@ public:
const void* inData,
UInt32 inDataSize) override
{
if (inScope == kAudioUnitScope_Global && inID == kAudioUnitProperty_OfflineRender)
if (inScope == kAudioUnitScope_Global)
{
if (juceFilter != nullptr)
juceFilter->setNonRealtime ((*(UInt32*) inData) != 0);
switch (inID)
{
#if JucePlugin_ProducesMidiOutput
case kAudioUnitProperty_MIDIOutputCallback:
if (inDataSize < sizeof (AUMIDIOutputCallbackStruct))
return kAudioUnitErr_InvalidPropertyValue;
return noErr;
if (AUMIDIOutputCallbackStruct* callbackStruct = (AUMIDIOutputCallbackStruct*) inData)
midiCallback = *callbackStruct;
return noErr;
#endif
case kAudioUnitProperty_OfflineRender:
if (juceFilter != nullptr)
juceFilter->setNonRealtime ((*(UInt32*) inData) != 0);
return noErr;
default: break;
}
}
return JuceAUBaseClass::SetProperty (inID, inScope, inElement, inData, inDataSize);
@ -504,7 +552,7 @@ public:
info.ppqLoopStart = 0;
info.ppqLoopEnd = 0;
switch (lastSMPTETime.mType)
switch (lastTimeStamp.mSMPTETime.mType)
{
case kSMPTETimeType24: info.frameRate = AudioPlayHead::fps24; break;
case kSMPTETimeType25: info.frameRate = AudioPlayHead::fps25; break;
@ -679,7 +727,7 @@ public:
const AudioTimeStamp& inTimeStamp,
UInt32 nFrames) override
{
lastSMPTETime = inTimeStamp.mSMPTETime;
lastTimeStamp = inTimeStamp;
#if ! JucePlugin_IsSynth
return JuceAUBaseClass::Render (ioActionFlags, inTimeStamp, nFrames);
@ -804,23 +852,40 @@ public:
if (! midiEvents.isEmpty())
{
#if JucePlugin_ProducesMidiOutput
const juce::uint8* midiEventData;
int midiEventSize, midiEventPosition;
MidiBuffer::Iterator i (midiEvents);
while (i.getNextEvent (midiEventData, midiEventSize, midiEventPosition))
if (midiCallback.midiOutputCallback != nullptr)
{
jassert (isPositiveAndBelow (midiEventPosition, (int) numSamples));
UInt32 numPackets = 0;
size_t dataSize = 0;
const juce::uint8* midiEventData;
int midiEventSize, midiEventPosition;
for (MidiBuffer::Iterator i (midiEvents); i.getNextEvent (midiEventData, midiEventSize, midiEventPosition);)
{
jassert (isPositiveAndBelow (midiEventPosition, (int) numSamples));
dataSize += (size_t) midiEventSize;
++numPackets;
}
//xxx
const size_t packetMembersSize = sizeof (MIDIPacket) - sizeof (MIDIPacket::data);
const size_t packetListMembersSize = sizeof (MIDIPacketList) - sizeof (MIDIPacket::data);
HeapBlock<MIDIPacketList> packetList;
packetList.malloc (packetListMembersSize + packetMembersSize * numPackets + dataSize, 1);
packetList->numPackets = numPackets;
MIDIPacket* p = packetList->packet;
for (MidiBuffer::Iterator i (midiEvents); i.getNextEvent (midiEventData, midiEventSize, midiEventPosition);)
{
p->timeStamp = (MIDITimeStamp) midiEventPosition;
p->length = (size_t) midiEventSize;
memcpy (p->data, midiEventData, (size_t) midiEventSize);
p = MIDIPacketNext (p);
}
midiCallback.midiOutputCallback (midiCallback.userData, &lastTimeStamp, 0, packetList);
}
#else
// if your plugin creates midi messages, you'll need to set
// the JucePlugin_ProducesMidiOutput macro to 1 in your
// JucePluginCharacteristics.h file
//jassert (midiEvents.getNumEvents() <= numMidiEventsComingIn);
#endif
midiEvents.clear();
@ -859,12 +924,7 @@ public:
return noErr;
}
OSStatus HandleMidiEvent (UInt8 nStatus, UInt8 inChannel, UInt8 inData1, UInt8 inData2,
#if defined (MAC_OS_X_VERSION_10_5)
UInt32 inStartFrame) override
#else
long inStartFrame) override
#endif
OSStatus HandleMidiEvent (UInt8 nStatus, UInt8 inChannel, UInt8 inData1, UInt8 inData2, UInt32 inStartFrame) override
{
#if JucePlugin_WantsMidiInput
const ScopedLock sl (incomingMidiLock);
@ -1178,11 +1238,12 @@ private:
HeapBlock <float*> channels;
MidiBuffer midiEvents, incomingEvents;
bool prepared;
SMPTETime lastSMPTETime;
AUChannelInfo channelInfo [numChannelConfigs];
AudioUnitEvent auEvent;
mutable Array<AUPreset> presetsArray;
CriticalSection incomingMidiLock;
AUMIDIOutputCallbackStruct midiCallback;
AudioTimeStamp lastTimeStamp;
void clearPresetsArray() const
{