Merge branch 'master' of ssh://git.axiodl.com:6431/AxioDL/boo

CMakeLists.txt

@@ -123,8 +123,8 @@ elseif(APPLE)
                               PROPERTIES COMPILE_FLAGS -fobjc-arc)
 
   list(APPEND PLAT_HDRS
+       lib/CFPointer.hpp
        include/boo/graphicsdev/Metal.hpp
-       lib/inputdev/CFPointer.hpp
        lib/inputdev/IOKitPointer.hpp)
 
   find_library(APPKIT_LIBRARY AppKit)

include/boo/IWindow.hpp

@@ -296,7 +296,7 @@ public:
     virtual bool clipboardCopy(EClipboardType type, const uint8_t* data, size_t sz)=0;
     virtual std::unique_ptr<uint8_t[]> clipboardPaste(EClipboardType type, size_t& sz)=0;
 
-    virtual void waitForRetrace(IAudioVoiceEngine* voxEngine=nullptr)=0;
+    virtual void waitForRetrace()=0;
     
     virtual uintptr_t getPlatformHandle() const=0;
     virtual bool _incomingEvent(void* event) {(void)event; return false;}

include/boo/audiodev/IAudioVoiceEngine.hpp

@@ -102,12 +102,6 @@ struct IAudioVoiceEngine
 
     /** Get canonical count of frames for each 5ms output block */
     virtual size_t get5MsFrames() const=0;
-
-    /** IWindow::waitForRetrace() enter - for platforms that spend v-sync waits synchronously pumping audio */
-    virtual void _pumpAndMixVoicesRetrace() { pumpAndMixVoices(); }
-
-    /** IWindow::waitForRetrace() break - signal retrace event to break out of pumping cycles */
-    virtual void _retraceBreak() {}
 };
 
 /** Construct host platform's voice engine */

lib/CFPointer.hpp

@@ -44,12 +44,12 @@ public:
         return *this;
     }
 
-    CFTypeRef* operator&()
+    T* operator&()
     {
         if (CFTypeRef pointer = storage) {
             CFRelease(pointer);
         }
-        return &storage;
+        return (T*)&storage;
     }
     operator bool() const { return storage != nullptr; }
 

lib/audiodev/AQS.cpp

@@ -1,5 +1,7 @@
 #include "AudioVoiceEngine.hpp"
 #include "logvisor/logvisor.hpp"
+#include "boo/IApplication.hpp"
+#include "../CFPointer.hpp"
 
 #include <AudioToolbox/AudioToolbox.h>
 #include <CoreMIDI/CoreMIDI.h>
@@ -12,6 +14,8 @@ namespace boo
 {
 static logvisor::Module Log("boo::AQS");
 
+#define AQS_NUM_BUFFERS 24
+
 static AudioChannel AQSChannelToBooChannel(AudioChannelLabel ch)
 {
     switch (ch)
@@ -38,105 +42,181 @@ static AudioChannel AQSChannelToBooChannel(AudioChannelLabel ch)
 
 struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 {
+    CFPointer<CFStringRef> m_runLoopMode;
+    CFPointer<CFStringRef> m_devName;
+
     AudioQueueRef m_queue = nullptr;
-    AudioQueueBufferRef m_buffers[3];
+    AudioQueueBufferRef m_buffers[AQS_NUM_BUFFERS];
     size_t m_frameBytes;
 
     MIDIClientRef m_midiClient = 0;
 
-    std::mutex m_engineMutex;
-    std::condition_variable m_engineEnterCv;
-    std::condition_variable m_engineLeaveCv;
-    bool m_inRetrace = false;
-    bool m_inCb = false;
     bool m_cbRunning = true;
+    bool m_needsRebuild = false;
 
     static void Callback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer)
     {
         if (!engine->m_cbRunning)
             return;
-
-        std::unique_lock<std::mutex> lk(engine->m_engineMutex);
-        engine->m_inCb = true;
-        if (!engine->m_inRetrace)
-        {
-            if (engine->m_engineEnterCv.wait_for(lk,
-            std::chrono::nanoseconds(engine->m_mixInfo.m_periodFrames * 1000000000 /
-                                     size_t(engine->m_mixInfo.m_sampleRate))) == std::cv_status::timeout ||
-                                     !engine->m_inRetrace)
-            {
-                inBuffer->mAudioDataByteSize = engine->m_frameBytes;
-                memset(inBuffer->mAudioData, 0, engine->m_frameBytes);
-                AudioQueueEnqueueBuffer(inAQ, inBuffer, 0, nullptr);
-                engine->m_engineLeaveCv.notify_one();
-                engine->m_inCb = false;
-                return;
-            }
-        }
-
         engine->_pumpAndMixVoices(engine->m_mixInfo.m_periodFrames,
                                   reinterpret_cast<float*>(inBuffer->mAudioData));
         inBuffer->mAudioDataByteSize = engine->m_frameBytes;
         AudioQueueEnqueueBuffer(inAQ, inBuffer, 0, nullptr);
-
-        engine->m_engineLeaveCv.notify_one();
-        engine->m_inCb = false;
     }
 
     static void DummyCallback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {}
 
-    AudioChannelSet _getAvailableSet()
+    std::pair<AudioChannelSet, Float64> _getAvailableSetAndRate()
     {
-        const unsigned chCount = 8;
+        AudioObjectPropertyAddress  propertyAddress;
-        AudioStreamBasicDescription desc = {};
+        UInt32                      argSize;
-        desc.mSampleRate = 96000;
+        int                         numStreams;
-        desc.mFormatID = kAudioFormatLinearPCM;
+        std::vector<AudioStreamID>  streamIDs;
-        desc.mFormatFlags = kLinearPCMFormatFlagIsFloat;
-        desc.mBytesPerPacket = chCount * 4;
-        desc.mFramesPerPacket = 1;
-        desc.mBytesPerFrame = chCount * 4;
-        desc.mChannelsPerFrame = chCount;
-        desc.mBitsPerChannel = 32;
 
-        AudioQueueRef queue;
+        CFStringRef devName = m_devName.get();
-        if (AudioQueueNewOutput(&desc, AudioQueueOutputCallback(DummyCallback),
+        AudioObjectID devId;
-                                this, nullptr, nullptr, 0, &queue))
+        propertyAddress.mSelector = kAudioHardwarePropertyTranslateUIDToDevice;
-        {
+        propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
-            Log.report(logvisor::Error, "unable to create output audio queue");
+        propertyAddress.mElement = kAudioObjectPropertyElementMaster;
-            return AudioChannelSet::Unknown;
+        argSize = sizeof(devId);
+        if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, sizeof(devName), &devName, &argSize, &devId) != noErr) {
+            Log.report(logvisor::Error, "unable to resolve audio device UID %s, using default",
+                CFStringGetCStringPtr(devName, kCFStringEncodingUTF8));
+            argSize = sizeof(devId);
+            propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
+            if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &argSize, &devId) == noErr) {
+                argSize = sizeof(CFStringRef);
+                AudioObjectPropertyAddress deviceAddress;
+                deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
+                AudioObjectGetPropertyData(devId, &deviceAddress, 0, NULL, &argSize, &m_devName);
+            } else {
+                Log.report(logvisor::Fatal, "unable determine default audio device");
+                return {AudioChannelSet::Unknown, 48000.0};
+            }
         }
 
-        UInt32 hwChannels;
+        propertyAddress.mSelector = kAudioDevicePropertyStreams;
-        UInt32 channelsSz = sizeof(UInt32);
+        if (AudioObjectGetPropertyDataSize(devId, &propertyAddress, 0, NULL, &argSize) == noErr) {
-        if (AudioQueueGetProperty(queue, kAudioQueueDeviceProperty_NumberChannels, &hwChannels, &channelsSz))
+            numStreams = argSize / sizeof(AudioStreamID);
-        {
+            streamIDs.resize(numStreams);
-            Log.report(logvisor::Error, "unable to get channel count from audio queue");
+
-            AudioQueueDispose(queue, true);
+            if (AudioObjectGetPropertyData(devId, &propertyAddress, 0, NULL, &argSize, &streamIDs[0]) == noErr) {
-            return AudioChannelSet::Unknown;
+                propertyAddress.mSelector = kAudioStreamPropertyDirection;
+                for (int stm = 0; stm < numStreams; stm++) {
+                    UInt32 streamDir;
+                    argSize = sizeof(streamDir);
+                    if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &argSize, &streamDir) == noErr) {
+                        if (streamDir == 0) {
+                            propertyAddress.mSelector = kAudioStreamPropertyPhysicalFormat;
+                            AudioStreamBasicDescription asbd;
+                            argSize = sizeof(asbd);
+                            if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &argSize, &asbd) == noErr) {
+                                switch (asbd.mChannelsPerFrame)
+                                {
+                                case 2:
+                                    return {AudioChannelSet::Stereo, asbd.mSampleRate};
+                                case 4:
+                                    return {AudioChannelSet::Quad, asbd.mSampleRate};
+                                case 6:
+                                    return {AudioChannelSet::Surround51, asbd.mSampleRate};
+                                case 8:
+                                    return {AudioChannelSet::Surround71, asbd.mSampleRate};
+                                default: break;
+                                }
+                                if (asbd.mChannelsPerFrame > 8)
+                                    return {AudioChannelSet::Surround71, asbd.mSampleRate};
+                            }
+                            break;
+                        }
+                    }
+                }
+            }
         }
 
-        AudioQueueDispose(queue, true);
+        return {AudioChannelSet::Unknown, 48000.0};
-
-        switch (hwChannels)
-        {
-        case 2:
-            return AudioChannelSet::Stereo;
-        case 4:
-            return AudioChannelSet::Quad;
-        case 6:
-            return AudioChannelSet::Surround51;
-        case 8:
-            return AudioChannelSet::Surround71;
-        default: break;
-        }
-
-        if (hwChannels > 8)
-            return AudioChannelSet::Surround71;
-
-        return AudioChannelSet::Unknown;
     }
 
-    std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() const
+    std::string getCurrentAudioOutput() const
+    {
+        return CFStringGetCStringPtr(m_devName.get(), kCFStringEncodingUTF8);
+    }
+
+    bool setCurrentAudioOutput(const char* name)
+    {
+        m_devName = CFPointer<CFStringRef>::adopt(CFStringCreateWithCString(nullptr, name, kCFStringEncodingUTF8));
+        _rebuildAudioQueue();
+        return true;
+    }
+
+    /*
+     * https://stackoverflow.com/questions/1983984/how-to-get-audio-device-uid-to-pass-into-nssounds-setplaybackdeviceidentifier
+     */
+    std::vector<std::pair<std::string, std::string>> enumerateAudioOutputs() const
+    {
+        std::vector<std::pair<std::string, std::string>> ret;
+
+        AudioObjectPropertyAddress  propertyAddress;
+        std::vector<AudioObjectID>  deviceIDs;
+        UInt32                      propertySize;
+        int                         numDevices;
+
+        std::vector<AudioStreamID>  streamIDs;
+        int                         numStreams;
+
+        propertyAddress.mSelector = kAudioHardwarePropertyDevices;
+        propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
+        propertyAddress.mElement = kAudioObjectPropertyElementMaster;
+        if (AudioObjectGetPropertyDataSize(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propertySize) == noErr) {
+            numDevices = propertySize / sizeof(AudioDeviceID);
+            ret.reserve(numDevices);
+            deviceIDs.resize(numDevices);
+
+            if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &propertySize, &deviceIDs[0]) == noErr) {
+                char deviceName[64];
+
+                for (int idx = 0; idx < numDevices; idx++) {
+                    propertyAddress.mSelector = kAudioDevicePropertyStreams;
+                    if (AudioObjectGetPropertyDataSize(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize) == noErr) {
+                        numStreams = propertySize / sizeof(AudioStreamID);
+                        streamIDs.resize(numStreams);
+
+                        if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, &streamIDs[0]) == noErr) {
+                            propertyAddress.mSelector = kAudioStreamPropertyDirection;
+                            bool foundOutput = false;
+                            for (int stm = 0; stm < numStreams; stm++) {
+                                UInt32 streamDir;
+                                propertySize = sizeof(streamDir);
+                                if (AudioObjectGetPropertyData(streamIDs[stm], &propertyAddress, 0, NULL, &propertySize, &streamDir) == noErr) {
+                                    if (streamDir == 0) {
+                                        foundOutput = true;
+                                        break;
+                                    }
+                                }
+                            }
+                            if (!foundOutput)
+                                continue;
+                        }
+                    }
+
+                    propertySize = sizeof(deviceName);
+                    propertyAddress.mSelector = kAudioDevicePropertyDeviceName;
+                    if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, deviceName) == noErr) {
+                        CFPointer<CFStringRef> uidString;
+
+                        propertySize = sizeof(CFStringRef);
+                        propertyAddress.mSelector = kAudioDevicePropertyDeviceUID;
+                        if (AudioObjectGetPropertyData(deviceIDs[idx], &propertyAddress, 0, NULL, &propertySize, &uidString) == noErr) {
+                            ret.emplace_back(CFStringGetCStringPtr(uidString.get(), kCFStringEncodingUTF8), deviceName);
+                        }
+                    }
+                }
+            }
+        }
+
+        return ret;
+    }
+
+    std::vector<std::pair<std::string, std::string>> enumerateMIDIInputs() const
     {
         if (!m_midiClient)
             return {};
@@ -151,32 +231,50 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
             if (!dev)
                 continue;
 
+            bool isInput = false;
+            ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
+            for (ItemCount j=0 ; j<numEnt ; ++j)
+            {
+                MIDIEntityRef ent = MIDIDeviceGetEntity(dev, j);
+                if (ent)
+                {
+                    ItemCount numSrc = MIDIEntityGetNumberOfSources(ent);
+                    if (numSrc)
+                    {
+                        isInput = true;
+                        break;
+                    }
+                }
+            }
+            if (!isInput)
+                continue;
+
             SInt32 idNum;
             if (MIDIObjectGetIntegerProperty(dev, kMIDIPropertyUniqueID, &idNum))
                 continue;
 
-            CFStringRef namestr;
+            CFPointer<CFStringRef> namestr;
             const char* nameCstr;
             if (MIDIObjectGetStringProperty(dev, kMIDIPropertyName, &namestr))
                 continue;
 
-            if (!(nameCstr = CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8)))
+            if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
-            {
-                CFRelease(namestr);
                 continue;
-            }
 
             char idStr[9];
             snprintf(idStr, 9, "%08X\n", idNum);
             ret.push_back(std::make_pair(std::string(idStr),
                                          std::string(nameCstr)));
-
-            CFRelease(namestr);
         }
 
         return ret;
     }
 
+    bool supportsVirtualMIDIIn() const
+    {
+        return true;
+    }
+
     static MIDIDeviceRef LookupMIDIDevice(const char* name)
     {
         ItemCount numDevices = MIDIGetNumberOfDevices();
@@ -269,8 +367,8 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         MIDIEndpointRef m_midi = 0;
         MIDIPortRef m_midiPort = 0;
 
-        MIDIIn(bool virt, ReceiveFunctor&& receiver)
+        MIDIIn(AQSAudioVoiceEngine* parent, bool virt, ReceiveFunctor&& receiver)
-        : IMIDIIn(virt, std::move(receiver)) {}
+        : IMIDIIn(parent, virt, std::move(receiver)) {}
 
         ~MIDIIn()
         {
@@ -282,18 +380,14 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 
         std::string description() const
         {
-            CFStringRef namestr;
+            CFPointer<CFStringRef> namestr;
             const char* nameCstr;
             if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyName, &namestr))
                 return {};
 
-            if (!(nameCstr = CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8)))
+            if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
-            {
-                CFRelease(namestr);
                 return {};
-            }
 
-            CFRelease(namestr);
             return nameCstr;
         }
     };
@@ -303,8 +397,8 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         MIDIEndpointRef m_midi = 0;
         MIDIPortRef m_midiPort = 0;
 
-        MIDIOut(bool virt)
+        MIDIOut(AQSAudioVoiceEngine* parent, bool virt)
-        : IMIDIOut(virt) {}
+        : IMIDIOut(parent, virt) {}
 
         ~MIDIOut()
         {
@@ -316,18 +410,14 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 
         std::string description() const
         {
-            CFStringRef namestr;
+            CFPointer<CFStringRef> namestr;
             const char* nameCstr;
             if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyName, &namestr))
                 return {};
 
-            if (!(nameCstr = CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8)))
+            if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
-            {
-                CFRelease(namestr);
                 return {};
-            }
 
-            CFRelease(namestr);
             return nameCstr;
         }
 
@@ -359,8 +449,8 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         MIDIEndpointRef m_midiOut = 0;
         MIDIPortRef m_midiPortOut = 0;
 
-        MIDIInOut(bool virt, ReceiveFunctor&& receiver)
+        MIDIInOut(AQSAudioVoiceEngine* parent, bool virt, ReceiveFunctor&& receiver)
-        : IMIDIInOut(virt, std::move(receiver)) {}
+        : IMIDIInOut(parent, virt, std::move(receiver)) {}
 
         ~MIDIInOut()
         {
@@ -376,18 +466,14 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 
         std::string description() const
         {
-            CFStringRef namestr;
+            CFPointer<CFStringRef> namestr;
             const char* nameCstr;
             if (MIDIObjectGetStringProperty(m_midiIn, kMIDIPropertyName, &namestr))
                 return {};
 
-            if (!(nameCstr = CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8)))
+            if (!(nameCstr = CFStringGetCStringPtr(namestr.get(), kCFStringEncodingUTF8)))
-            {
-                CFRelease(namestr);
                 return {};
-            }
 
-            CFRelease(namestr);
             return nameCstr;
         }
 
@@ -420,19 +506,24 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!m_midiClient)
             return {};
 
-        std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(true, std::move(receiver));
+        std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(this, true, std::move(receiver));
         if (!ret)
             return {};
 
         char name[256];
-        snprintf(name, 256, "Boo MIDI Virtual In %u", m_midiInCounter++);
+        auto appName = APP->getFriendlyName();
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
+        if (!m_midiInCounter)
+            snprintf(name, 256, "%s MIDI-In", appName.data());
+        else
+            snprintf(name, 256, "%s MIDI-In %u", appName.data(), m_midiInCounter);
+        m_midiInCounter++;
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
+            CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
         OSStatus stat;
-        if ((stat = MIDIDestinationCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
+        if ((stat = MIDIDestinationCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
                                   static_cast<IMIDIReceiver*>(ret.get()),
                                   &static_cast<MIDIIn&>(*ret).m_midi)))
             ret.reset();
-        CFRelease(midiName);
 
         return ret;
     }
@@ -442,16 +533,21 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!m_midiClient)
             return {};
 
-        std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(true);
+        std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(this, true);
         if (!ret)
             return {};
 
         char name[256];
-        snprintf(name, 256, "Boo MIDI Virtual Out %u", m_midiOutCounter++);
+        auto appName = APP->getFriendlyName();
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
+        if (!m_midiOutCounter)
-        if (MIDISourceCreate(m_midiClient, midiName, &static_cast<MIDIOut&>(*ret).m_midi))
+            snprintf(name, 256, "%s MIDI-Out", appName.data());
+        else
+            snprintf(name, 256, "%s MIDI-Out %u", appName.data(), m_midiOutCounter);
+        m_midiOutCounter++;
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
+            CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDISourceCreate(m_midiClient, midiName.get(), &static_cast<MIDIOut&>(*ret).m_midi))
             ret.reset();
-        CFRelease(midiName);
 
         return ret;
     }
@@ -461,27 +557,36 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!m_midiClient)
             return {};
 
-        std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(true, std::move(receiver));
+        std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(this, true, std::move(receiver));
         if (!ret)
             return {};
 
         char name[256];
-        snprintf(name, 256, "Boo MIDI Virtual In %u", m_midiInCounter++);
+        auto appName = APP->getFriendlyName();
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
+        if (!m_midiInCounter)
-        if (MIDIDestinationCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
+            snprintf(name, 256, "%s MIDI-In", appName.data());
+        else
+            snprintf(name, 256, "%s MIDI-In %u", appName.data(), m_midiInCounter);
+        m_midiInCounter++;
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
+            CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDIDestinationCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
                                   static_cast<IMIDIReceiver*>(ret.get()),
                                   &static_cast<MIDIInOut&>(*ret).m_midiIn))
             ret.reset();
-        CFRelease(midiName);
 
         if (!ret)
             return {};
 
-        snprintf(name, 256, "Boo MIDI Virtual Out %u", m_midiOutCounter++);
+        if (!m_midiOutCounter)
-        midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
+            snprintf(name, 256, "%s MIDI-Out", appName.data());
-        if (MIDISourceCreate(m_midiClient, midiName, &static_cast<MIDIInOut&>(*ret).m_midiOut))
+        else
+            snprintf(name, 256, "%s MIDI-Out %u", appName.data(), m_midiOutCounter);
+        m_midiOutCounter++;
+        midiName = CFPointer<CFStringRef>::adopt(
+            CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDISourceCreate(m_midiClient, midiName.get(), &static_cast<MIDIInOut&>(*ret).m_midiOut))
             ret.reset();
-        CFRelease(midiName);
 
         return ret;
     }
@@ -495,20 +600,20 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!src)
             return {};
 
-        std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(false, std::move(receiver));
+        std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(this, false, std::move(receiver));
         if (!ret)
             return {};
 
         char mname[256];
         snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
-        if (MIDIInputPortCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
+            CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDIInputPortCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
                                 static_cast<IMIDIReceiver*>(ret.get()),
                                 &static_cast<MIDIIn&>(*ret).m_midiPort))
             ret.reset();
         else
             MIDIPortConnectSource(static_cast<MIDIIn&>(*ret).m_midiPort, src, nullptr);
-        CFRelease(midiName);
 
         return ret;
     }
@@ -522,18 +627,18 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!dst)
             return {};
 
-        std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(false);
+        std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(this, false);
         if (!ret)
             return {};
 
         char mname[256];
         snprintf(mname, 256, "Boo MIDI Real Out %u", m_midiOutCounter++);
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
-        if (MIDIOutputPortCreate(m_midiClient, midiName, &static_cast<MIDIOut&>(*ret).m_midiPort))
+            CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDIOutputPortCreate(m_midiClient, midiName.get(), &static_cast<MIDIOut&>(*ret).m_midiPort))
             ret.reset();
         else
             static_cast<MIDIOut&>(*ret).m_midi = dst;
-        CFRelease(midiName);
 
         return ret;
     }
@@ -551,44 +656,60 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         if (!dst)
             return {};
 
-        std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(false, std::move(receiver));
+        std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(this, false, std::move(receiver));
         if (!ret)
             return {};
 
         char mname[256];
         snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
-        CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
+        CFPointer<CFStringRef> midiName = CFPointer<CFStringRef>::adopt(
-        if (MIDIInputPortCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
+            CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDIInputPortCreate(m_midiClient, midiName.get(), MIDIReadProc(MIDIReceiveProc),
                                 static_cast<IMIDIReceiver*>(ret.get()),
                                 &static_cast<MIDIInOut&>(*ret).m_midiPortIn))
             ret.reset();
         else
             MIDIPortConnectSource(static_cast<MIDIInOut&>(*ret).m_midiPortIn, src, nullptr);
-        CFRelease(midiName);
 
         if (!ret)
             return {};
 
         snprintf(mname, 256, "Boo MIDI Real Out %u", m_midiOutCounter++);
-        midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
+        midiName = CFPointer<CFStringRef>::adopt(
-        if (MIDIOutputPortCreate(m_midiClient, midiName, &static_cast<MIDIInOut&>(*ret).m_midiPortOut))
+            CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull));
+        if (MIDIOutputPortCreate(m_midiClient, midiName.get(), &static_cast<MIDIInOut&>(*ret).m_midiPortOut))
             ret.reset();
         else
             static_cast<MIDIInOut&>(*ret).m_midiOut = dst;
-        CFRelease(midiName);
 
         return ret;
     }
 
     bool useMIDILock() const {return true;}
 
-    AQSAudioVoiceEngine()
+    static void SampleRateChanged(AQSAudioVoiceEngine* engine,
+                                  AudioQueueRef        inAQ,
+                                  AudioQueuePropertyID inID)
     {
-        m_mixInfo.m_channels = _getAvailableSet();
+        engine->m_needsRebuild = true;
+    }
+
+    void _rebuildAudioQueue()
+    {
+        if (m_queue)
+        {
+            m_cbRunning = false;
+            AudioQueueDispose(m_queue, true);
+            m_cbRunning = true;
+            m_queue = nullptr;
+        }
+
+        auto setAndRate = _getAvailableSetAndRate();
+        m_mixInfo.m_channels = setAndRate.first;
         unsigned chCount = ChannelCount(m_mixInfo.m_channels);
 
         AudioStreamBasicDescription desc = {};
-        desc.mSampleRate = 96000;
+        desc.mSampleRate = setAndRate.second;
         desc.mFormatID = kAudioFormatLinearPCM;
         desc.mFormatFlags = kLinearPCMFormatFlagIsFloat;
         desc.mBytesPerPacket = chCount * 4;
@@ -599,34 +720,26 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 
         OSStatus err;
         if ((err = AudioQueueNewOutput(&desc, AudioQueueOutputCallback(Callback),
-                                       this, nullptr, nullptr, 0, &m_queue)))
+                                       this, CFRunLoopGetCurrent(), m_runLoopMode.get(), 0, &m_queue)))
         {
             Log.report(logvisor::Fatal, "unable to create output audio queue");
             return;
         }
 
-        Float64 actualSampleRate;
+        CFStringRef devName = m_devName.get();
-        UInt32 argSize = 8;
+        if ((err = AudioQueueSetProperty(m_queue, kAudioQueueProperty_CurrentDevice, &devName, sizeof(devName))))
-        err = AudioQueueGetProperty(m_queue, kAudioQueueDeviceProperty_SampleRate, &actualSampleRate, &argSize);
-        AudioQueueDispose(m_queue, true);
-        if (err)
         {
-            Log.report(logvisor::Fatal, "unable to get native sample rate from audio queue");
+            Log.report(logvisor::Fatal, "unable to set current device into audio queue");
             return;
         }
 
-        desc.mSampleRate = actualSampleRate;
+        AudioQueueAddPropertyListener(m_queue, kAudioQueueDeviceProperty_SampleRate,
-        if ((err = AudioQueueNewOutput(&desc, AudioQueueOutputCallback(Callback),
+            AudioQueuePropertyListenerProc(SampleRateChanged), this);
-                                       this, nullptr, nullptr, 0, &m_queue)))
-        {
-            Log.report(logvisor::Fatal, "unable to create output audio queue");
-            return;
-        }
 
-        m_mixInfo.m_sampleRate = actualSampleRate;
+        m_mixInfo.m_sampleRate = desc.mSampleRate;
         m_mixInfo.m_sampleFormat = SOXR_FLOAT32_I;
         m_mixInfo.m_bitsPerSample = 32;
-        m_5msFrames = actualSampleRate * 5 / 1000;
+        m_5msFrames = desc.mSampleRate * 5 / 1000;
 
         ChannelMap& chMapOut = m_mixInfo.m_channelMap;
         chMapOut.m_channelCount = 0;
@@ -741,8 +854,8 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         while (chMapOut.m_channelCount < chCount)
             chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::Unknown;
 
-        m_mixInfo.m_periodFrames = m_5msFrames * 3;
+        m_mixInfo.m_periodFrames = m_5msFrames;
-        for (int i=0 ; i<3 ; ++i)
+        for (int i=0 ; i<AQS_NUM_BUFFERS ; ++i)
             if (AudioQueueAllocateBuffer(m_queue, m_mixInfo.m_periodFrames * chCount * 4, &m_buffers[i]))
             {
                 Log.report(logvisor::Fatal, "unable to create audio queue buffer");
@@ -753,7 +866,9 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
 
         m_frameBytes = m_mixInfo.m_periodFrames * m_mixInfo.m_channelMap.m_channelCount * 4;
 
-        for (unsigned i=0 ; i<3 ; ++i)
+        _resetSampleRate();
+
+        for (unsigned i=0 ; i<AQS_NUM_BUFFERS ; ++i)
         {
             memset(m_buffers[i]->mAudioData, 0, m_frameBytes);
             m_buffers[i]->mAudioDataByteSize = m_frameBytes;
@@ -761,6 +876,51 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
         }
         AudioQueuePrime(m_queue, 0, nullptr);
         AudioQueueStart(m_queue, nullptr);
+    }
+
+    static OSStatus AudioDeviceChanged(AudioObjectID                       inObjectID,
+                                       UInt32                              inNumberAddresses,
+                                       const AudioObjectPropertyAddress*   inAddresses,
+                                       AQSAudioVoiceEngine*                engine)
+    {
+        AudioObjectID defaultDeviceId;
+        UInt32 argSize = sizeof(defaultDeviceId);
+        if (AudioObjectGetPropertyData(inObjectID, inAddresses, 0, NULL, &argSize, &defaultDeviceId) == noErr) {
+            argSize = sizeof(CFStringRef);
+            AudioObjectPropertyAddress deviceAddress;
+            deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
+            AudioObjectGetPropertyData(defaultDeviceId, &deviceAddress, 0, NULL, &argSize, &engine->m_devName);
+        }
+        engine->m_needsRebuild = true;
+        return noErr;
+    }
+
+    AQSAudioVoiceEngine()
+    : m_runLoopMode(CFPointer<CFStringRef>::adopt(
+        CFStringCreateWithCStringNoCopy(nullptr, "BooAQSMode", kCFStringEncodingUTF8, kCFAllocatorNull)))
+    {
+        AudioObjectPropertyAddress  propertyAddress;
+        propertyAddress.mScope = kAudioObjectPropertyScopeGlobal;
+        propertyAddress.mElement = kAudioObjectPropertyElementMaster;
+
+        AudioObjectID defaultDeviceId;
+        UInt32 argSize = sizeof(defaultDeviceId);
+        propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
+        if (AudioObjectGetPropertyData(kAudioObjectSystemObject, &propertyAddress, 0, NULL, &argSize, &defaultDeviceId) == noErr) {
+            argSize = sizeof(CFStringRef);
+            AudioObjectPropertyAddress deviceAddress;
+            deviceAddress.mSelector = kAudioDevicePropertyDeviceUID;
+            AudioObjectGetPropertyData(defaultDeviceId, &deviceAddress, 0, NULL, &argSize, &m_devName);
+        } else {
+            Log.report(logvisor::Fatal, "unable determine default audio device");
+            return;
+        }
+
+        propertyAddress.mSelector = kAudioHardwarePropertyDefaultOutputDevice;
+        AudioObjectAddPropertyListener(kAudioObjectSystemObject, &propertyAddress,
+            AudioObjectPropertyListenerProc(AudioDeviceChanged), this);
+
+        _rebuildAudioQueue();
 
         /* Also create shared MIDI client */
         MIDIClientCreate(CFSTR("Boo MIDI"), nullptr, nullptr, &m_midiClient);
@@ -769,50 +929,20 @@ struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
     ~AQSAudioVoiceEngine()
     {
         m_cbRunning = false;
-        if (m_inCb)
-            m_engineEnterCv.notify_one();
         AudioQueueDispose(m_queue, true);
         if (m_midiClient)
             MIDIClientDispose(m_midiClient);
     }
 
-    /* This is temperamental for AudioQueueServices
-     * (which has unpredictable buffering windows).
-     * _pumpAndMixVoicesRetrace() is highly recommended. */
     void pumpAndMixVoices()
     {
-        std::unique_lock<std::mutex> lk(m_engineMutex);
+        while (CFRunLoopRunInMode(m_runLoopMode.get(), 0, true) == kCFRunLoopRunHandledSource) {}
-        if (m_inCb)
+        if (m_needsRebuild)
         {
-            /* Wake up callback */
+            _rebuildAudioQueue();
-            m_engineEnterCv.notify_one();
+            m_needsRebuild = false;
-            /* Wait for callback completion */
-            m_engineLeaveCv.wait(lk);
         }
     }
-
-    void _pumpAndMixVoicesRetrace()
-    {
-        std::unique_lock<std::mutex> lk(m_engineMutex);
-        m_inRetrace = true;
-        while (m_inRetrace)
-        {
-            if (m_inCb) /* Wake up callback */
-                m_engineEnterCv.notify_one();
-            /* Wait for callback completion */
-            m_engineLeaveCv.wait(lk);
-        }
-    }
-
-    void _retraceBreak()
-    {
-        std::unique_lock<std::mutex> lk(m_engineMutex);
-        m_inRetrace = false;
-        if (m_inCb) /* Break out of callback */
-            m_engineEnterCv.notify_one();
-        else /* Break out of client */
-            m_engineLeaveCv.notify_one();
-    }
 };
 
 std::unique_ptr<IAudioVoiceEngine> NewAudioVoiceEngine()

lib/audiodev/AudioMatrix.hpp

@@ -46,7 +46,7 @@ class AudioMatrixMono
     Coefs m_coefs = {};
     Coefs m_oldCoefs = {};
     size_t m_slewFrames = 0;
-    size_t m_curSlewFrame = 0;
+    size_t m_curSlewFrame = ~size_t(0);
 public:
     AudioMatrixMono() {setDefaultMatrixCoefficients(AudioChannelSet::Stereo);}
 
@@ -54,19 +54,23 @@ public:
     void setMatrixCoefficients(const float coefs[8], size_t slewFrames=0)
     {
         m_slewFrames = slewFrames;
-        m_curSlewFrame = 0;
 #if __SSE__
-        m_oldCoefs.q[0] = m_coefs.q[0];
+        if (m_curSlewFrame != 0)
-        m_oldCoefs.q[1] = m_coefs.q[1];
+        {
+            m_oldCoefs.q[0] = m_coefs.q[0];
+            m_oldCoefs.q[1] = m_coefs.q[1];
+        }
         m_coefs.q[0] = _mm_loadu_ps(coefs);
         m_coefs.q[1] = _mm_loadu_ps(&coefs[4]);
 #else
         for (int i=0 ; i<8 ; ++i)
         {
-            m_oldCoefs.v[i] = m_coefs.v[i];
+            if (m_curSlewFrame != 0)
+                m_oldCoefs.v[i] = m_coefs.v[i];
             m_coefs.v[i] = coefs[i];
         }
 #endif
+        m_curSlewFrame = 0;
     }
 
     int16_t* mixMonoSampleData(const AudioVoiceEngineMixInfo& info,
@@ -102,7 +106,7 @@ class AudioMatrixStereo
     Coefs m_coefs = {};
     Coefs m_oldCoefs = {};
     size_t m_slewFrames = 0;
-    size_t m_curSlewFrame = 0;
+    size_t m_curSlewFrame = ~size_t(0);
 public:
     AudioMatrixStereo() {setDefaultMatrixCoefficients(AudioChannelSet::Stereo);}
 
@@ -110,12 +114,14 @@ public:
     void setMatrixCoefficients(const float coefs[8][2], size_t slewFrames=0)
     {
         m_slewFrames = slewFrames;
-        m_curSlewFrame = 0;
 #if __SSE__
-        m_oldCoefs.q[0] = m_coefs.q[0];
+        if (m_curSlewFrame != 0)
-        m_oldCoefs.q[1] = m_coefs.q[1];
+        {
-        m_oldCoefs.q[2] = m_coefs.q[2];
+            m_oldCoefs.q[0] = m_coefs.q[0];
-        m_oldCoefs.q[3] = m_coefs.q[3];
+            m_oldCoefs.q[1] = m_coefs.q[1];
+            m_oldCoefs.q[2] = m_coefs.q[2];
+            m_oldCoefs.q[3] = m_coefs.q[3];
+        }
         m_coefs.q[0] = _mm_loadu_ps(coefs[0]);
         m_coefs.q[1] = _mm_loadu_ps(coefs[2]);
         m_coefs.q[2] = _mm_loadu_ps(coefs[4]);
@@ -123,12 +129,16 @@ public:
 #else
         for (int i=0 ; i<8 ; ++i)
         {
-            m_oldCoefs.v[i][0] = m_coefs.v[i][0];
+            if (m_curSlewFrame != 0)
-            m_oldCoefs.v[i][1] = m_coefs.v[i][1];
+            {
+                m_oldCoefs.v[i][0] = m_coefs.v[i][0];
+                m_oldCoefs.v[i][1] = m_coefs.v[i][1];
+            }
             m_coefs.v[i][0] = coefs.v[i][0];
             m_coefs.v[i][1] = coefs.v[i][1];
         }
 #endif
+        m_curSlewFrame = 0;
     }
 
     int16_t* mixStereoSampleData(const AudioVoiceEngineMixInfo& info,

lib/inputdev/HIDListenerIOKit.cpp

@@ -9,7 +9,7 @@
 #include <IOKit/IOCFPlugIn.h>
 #include <sys/utsname.h>
 #include "IOKitPointer.hpp"
-#include "CFPointer.hpp"
+#include "../CFPointer.hpp"
 
 namespace boo
 {
@@ -182,9 +182,9 @@ class HIDListenerIOKit : public IHIDListener
 
                 /* Game controllers only */
                 CFPointer<CFNumberRef> usagePage;
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDPrimaryUsagePageKey), &usagePage);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDPrimaryUsagePageKey), (CFTypeRef*)&usagePage);
                 CFPointer<CFNumberRef> usage;
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDPrimaryUsageKey), &usage);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDPrimaryUsageKey), (CFTypeRef*)&usage);
                 int usagePageV, usageV;
                 CFNumberGetValue(usagePage.get(), kCFNumberIntType, &usagePageV);
                 CFNumberGetValue(usage.get(), kCFNumberIntType, &usageV);
@@ -199,14 +199,14 @@ class HIDListenerIOKit : public IHIDListener
                 }
 
                 CFPointer<CFNumberRef> vid, pid;
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDVendorIDKey), &vid);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDVendorIDKey), (CFTypeRef*)&vid);
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDProductIDKey), &pid);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDProductIDKey), (CFTypeRef*)&pid);
                 CFNumberGetValue(vid.get(), kCFNumberIntType, &vidv);
                 CFNumberGetValue(pid.get(), kCFNumberIntType, &pidv);
 
                 CFPointer<CFStringRef> vstridx, pstridx;
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDManufacturerKey), &vstridx);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDManufacturerKey), (CFTypeRef*)&vstridx);
-                dev->getProperty(dev.storage(), CFSTR(kIOHIDProductKey), &pstridx);
+                dev->getProperty(dev.storage(), CFSTR(kIOHIDProductKey), (CFTypeRef*)&pstridx);
 
                 if (vstridx)
                     CFStringGetCString(vstridx.get(), vstr, 128, kCFStringEncodingUTF8);

lib/inputdev/IOKitPointer.hpp

@@ -1,7 +1,7 @@
 #ifndef __IOKITPOINTER_HPP__
 #define __IOKITPOINTER_HPP__
 
-#include "CFPointer.hpp"
+#include "../CFPointer.hpp"
 #include <IOKit/IOTypes.h>
 #include <IOKit/IOKitLib.h>
 #include <IOKit/IOCFPlugIn.h>

lib/mac/WindowCocoa.mm

@@ -123,7 +123,6 @@ protected:
 
     std::mutex m_dlmt;
     std::condition_variable m_dlcv;
-    IAudioVoiceEngine* m_voxEngine = nullptr;
 
     static CVReturn DLCallback(CVDisplayLinkRef displayLink,
                                const CVTimeStamp * inNow,
@@ -133,10 +132,7 @@ protected:
                                GraphicsContextCocoa* ctx)
     {
         std::unique_lock<std::mutex> lk(ctx->m_dlmt);
-        if (ctx->m_voxEngine)
+        ctx->m_dlcv.notify_one();
-            ctx->m_voxEngine->_retraceBreak();
-        else
-            ctx->m_dlcv.notify_one();
         return kCVReturnSuccess;
     }
 
@@ -152,21 +148,10 @@ public:
 
     std::recursive_mutex m_callbackMutex;
     IWindowCallback* m_callback = nullptr;
-    void waitForRetrace(IAudioVoiceEngine* voxEngine)
+    void waitForRetrace()
     {
         std::unique_lock<std::mutex> lk(m_dlmt);
-        if (voxEngine)
+        m_dlcv.wait(lk);
-        {
-            m_voxEngine = voxEngine;
-            lk.unlock();
-            voxEngine->_pumpAndMixVoicesRetrace();
-            lk.lock();
-            m_voxEngine = nullptr;
-        }
-        else
-        {
-            m_dlcv.wait(lk);
-        }
     }
     virtual BooCocoaResponder* responder() const=0;
 };
@@ -1570,9 +1555,9 @@ public:
         });
     }
 
-    void waitForRetrace(IAudioVoiceEngine* voxEngine)
+    void waitForRetrace()
     {
-        static_cast<GraphicsContextCocoa*>(m_gfxCtx)->waitForRetrace(voxEngine);
+        static_cast<GraphicsContextCocoa*>(m_gfxCtx)->waitForRetrace();
     }
 
     uintptr_t getPlatformHandle() const

lib/win/WindowWin32.cpp

@@ -1259,10 +1259,8 @@ public:
         return std::unique_ptr<uint8_t[]>();
     }
 
-    void waitForRetrace(IAudioVoiceEngine* engine)
+    void waitForRetrace()
     {
-        if (engine)
-            engine->pumpAndMixVoices();
         m_gfxCtx->m_output->WaitForVBlank();
     }
 

lib/x11/WindowWayland.cpp

@@ -205,10 +205,8 @@ struct WindowWayland : IWindow
         return std::unique_ptr<uint8_t[]>();
     }
 
-    void waitForRetrace(IAudioVoiceEngine* engine)
+    void waitForRetrace()
     {
-        if (engine)
-            engine->pumpAndMixVoices();
     }
 
     uintptr_t getPlatformHandle() const

lib/x11/WindowXlib.cpp

@@ -1500,10 +1500,8 @@ public:
         XSendEvent(m_xDisp, se->requestor, False, 0, &reply);
     }
 
-    void waitForRetrace(IAudioVoiceEngine* engine)
+    void waitForRetrace()
     {
-        if (engine)
-            engine->pumpAndMixVoices();
         std::unique_lock<std::mutex> lk(m_gfxCtx->m_vsyncmt);
         m_gfxCtx->m_vsynccv.wait(lk);
     }