mirror of https://github.com/AxioDL/boo.git
717 lines
25 KiB
C++
717 lines
25 KiB
C++
#include "AudioVoiceEngine.hpp"
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#include "logvisor/logvisor.hpp"
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#include <AudioToolbox/AudioToolbox.h>
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#include <CoreMIDI/CoreMIDI.h>
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#include <CoreAudio/HostTime.h>
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#include <mutex>
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#include <condition_variable>
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namespace boo
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{
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static logvisor::Module Log("boo::AQS");
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static AudioChannel AQSChannelToBooChannel(AudioChannelLabel ch)
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{
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switch (ch)
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{
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case kAudioChannelLabel_Left:
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return AudioChannel::FrontLeft;
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case kAudioChannelLabel_Right:
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return AudioChannel::FrontRight;
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case kAudioChannelLabel_LeftSurround:
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return AudioChannel::RearLeft;
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case kAudioChannelLabel_RightSurround:
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return AudioChannel::RearRight;
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case kAudioChannelLabel_Center:
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return AudioChannel::FrontCenter;
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case kAudioChannelLabel_LFEScreen:
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return AudioChannel::LFE;
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case kAudioChannelLabel_LeftSurroundDirect:
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return AudioChannel::RearLeft;
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case kAudioChannelLabel_RightSurroundDirect:
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return AudioChannel::SideRight;
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}
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return AudioChannel::Unknown;
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}
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struct AQSAudioVoiceEngine : BaseAudioVoiceEngine
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{
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AudioQueueRef m_queue = nullptr;
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AudioQueueBufferRef m_buffers[3];
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size_t m_frameBytes;
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MIDIClientRef m_midiClient = 0;
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std::mutex m_engineMutex;
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std::condition_variable m_engineEnterCv;
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std::condition_variable m_engineLeaveCv;
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bool m_cbWaiting = false;
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static void Callback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer)
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{
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std::unique_lock<std::mutex> lk(engine->m_engineMutex);
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engine->m_cbWaiting = true;
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engine->m_engineEnterCv.wait(lk);
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engine->m_cbWaiting = false;
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engine->_pumpAndMixVoices(engine->m_mixInfo.m_periodFrames, reinterpret_cast<int32_t*>(inBuffer->mAudioData));
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inBuffer->mAudioDataByteSize = engine->m_frameBytes;
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AudioQueueEnqueueBuffer(inAQ, inBuffer, 0, nullptr);
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engine->m_engineLeaveCv.notify_one();
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}
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static void DummyCallback(AQSAudioVoiceEngine* engine, AudioQueueRef inAQ, AudioQueueBufferRef inBuffer) {}
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AudioChannelSet _getAvailableSet()
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{
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const unsigned chCount = 8;
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AudioStreamBasicDescription desc = {};
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desc.mSampleRate = 96000;
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desc.mFormatID = kAudioFormatLinearPCM;
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desc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
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desc.mBytesPerPacket = chCount * 4;
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desc.mFramesPerPacket = 1;
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desc.mBytesPerFrame = chCount * 4;
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desc.mChannelsPerFrame = chCount;
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desc.mBitsPerChannel = 32;
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AudioQueueRef queue;
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if (AudioQueueNewOutput(&desc, AudioQueueOutputCallback(DummyCallback),
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this, nullptr, nullptr, 0, &queue))
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{
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Log.report(logvisor::Error, "unable to create output audio queue");
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return AudioChannelSet::Unknown;
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}
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UInt32 hwChannels;
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UInt32 channelsSz = sizeof(UInt32);
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if (AudioQueueGetProperty(queue, kAudioQueueDeviceProperty_NumberChannels, &hwChannels, &channelsSz))
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{
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Log.report(logvisor::Error, "unable to get channel count from audio queue");
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AudioQueueDispose(queue, true);
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return AudioChannelSet::Unknown;
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}
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AudioQueueDispose(queue, true);
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switch (hwChannels)
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{
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case 2:
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return AudioChannelSet::Stereo;
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case 4:
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return AudioChannelSet::Quad;
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case 6:
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return AudioChannelSet::Surround51;
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case 8:
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return AudioChannelSet::Surround71;
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default: break;
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}
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return AudioChannelSet::Unknown;
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}
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std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() const
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{
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if (!m_midiClient)
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return {};
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std::vector<std::pair<std::string, std::string>> ret;
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ItemCount numDevices = MIDIGetNumberOfDevices();
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ret.reserve(numDevices);
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for (ItemCount i=0 ; i<numDevices ; ++i)
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{
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MIDIDeviceRef dev = MIDIGetDevice(i);
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if (!dev)
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continue;
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CFStringRef idstr;
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if (MIDIObjectGetStringProperty(dev, kMIDIPropertyDeviceID, &idstr))
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continue;
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CFStringRef namestr;
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if (MIDIObjectGetStringProperty(dev, kMIDIPropertyDisplayName, &namestr))
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{
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CFRelease(idstr);
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continue;
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}
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ret.push_back(std::make_pair(std::string(CFStringGetCStringPtr(idstr, kCFStringEncodingUTF8)),
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std::string(CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8))));
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CFRelease(idstr);
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CFRelease(namestr);
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}
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return ret;
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}
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static MIDIDeviceRef LookupMIDIDevice(const char* name)
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{
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ItemCount numDevices = MIDIGetNumberOfDevices();
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for (ItemCount i=0 ; i<numDevices ; ++i)
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{
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MIDIDeviceRef dev = MIDIGetDevice(i);
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if (!dev)
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continue;
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CFStringRef idstr;
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if (MIDIObjectGetStringProperty(dev, kMIDIPropertyDeviceID, &idstr))
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continue;
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if (!strcmp(CFStringGetCStringPtr(idstr, kCFStringEncodingUTF8), name))
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{
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CFRelease(idstr);
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return dev;
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}
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CFRelease(idstr);
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}
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return {};
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}
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static MIDIEndpointRef LookupMIDISource(const char* name)
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{
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MIDIDeviceRef dev = LookupMIDIDevice(name);
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if (!dev)
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return {};
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ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
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for (ItemCount i=0 ; i<numEnt ; ++i)
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{
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MIDIEntityRef ent = MIDIDeviceGetEntity(dev, i);
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if (ent)
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{
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ItemCount numSrc = MIDIEntityGetNumberOfSources(ent);
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for (ItemCount s=0 ; s<numSrc ; ++s)
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{
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MIDIEndpointRef src = MIDIEntityGetSource(ent, s);
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if (src)
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return src;
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}
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}
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}
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return {};
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}
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static MIDIEndpointRef LookupMIDIDest(const char* name)
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{
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MIDIDeviceRef dev = LookupMIDIDevice(name);
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if (!dev)
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return {};
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ItemCount numEnt = MIDIDeviceGetNumberOfEntities(dev);
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for (ItemCount i=0 ; i<numEnt ; ++i)
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{
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MIDIEntityRef ent = MIDIDeviceGetEntity(dev, i);
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if (ent)
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{
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ItemCount numDest = MIDIEntityGetNumberOfDestinations(ent);
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for (ItemCount d=0 ; d<numDest ; ++d)
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{
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MIDIEndpointRef dst = MIDIEntityGetDestination(ent, d);
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if (dst)
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return dst;
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}
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}
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}
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return {};
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}
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static void MIDIReceiveProc(const MIDIPacketList* pktlist,
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IMIDIReceiver* readProcRefCon,
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void*)
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{
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const MIDIPacket* packet = &pktlist->packet[0];
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for (int i=0 ; i<pktlist->numPackets ; ++i)
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{
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std::vector<uint8_t> bytes(std::cbegin(packet->data), std::cbegin(packet->data) + packet->length);
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;
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readProcRefCon->m_receiver(std::move(bytes), AudioConvertHostTimeToNanos(packet->timeStamp) / 1.0e9);
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packet = MIDIPacketNext(packet);
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}
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}
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struct MIDIIn : public IMIDIIn
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{
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MIDIEndpointRef m_midi = 0;
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MIDIPortRef m_midiPort = 0;
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MIDIIn(bool virt, ReceiveFunctor&& receiver)
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: IMIDIIn(virt, std::move(receiver)) {}
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~MIDIIn()
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{
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if (m_midi)
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MIDIEndpointDispose(m_midi);
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if (m_midiPort)
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MIDIPortDispose(m_midiPort);
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}
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std::string description() const
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{
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CFStringRef namestr;
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if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyDisplayName, &namestr))
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return {};
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std::string ret(CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8));
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CFRelease(namestr);
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return ret;
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}
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};
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struct MIDIOut : public IMIDIOut
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{
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MIDIEndpointRef m_midi = 0;
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MIDIPortRef m_midiPort = 0;
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MIDIOut(bool virt)
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: IMIDIOut(virt) {}
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~MIDIOut()
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{
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if (m_midi)
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MIDIEndpointDispose(m_midi);
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if (m_midiPort)
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MIDIPortDispose(m_midiPort);
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}
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std::string description() const
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{
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CFStringRef namestr;
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if (MIDIObjectGetStringProperty(m_midi, kMIDIPropertyDisplayName, &namestr))
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return {};
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std::string ret(CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8));
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CFRelease(namestr);
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return ret;
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}
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size_t send(const void* buf, size_t len) const
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{
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union
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{
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MIDIPacketList head;
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Byte storage[512];
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} list;
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MIDIPacket* curPacket = MIDIPacketListInit(&list.head);
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if (MIDIPacketListAdd(&list.head, sizeof(list), curPacket, AudioGetCurrentHostTime(),
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len, reinterpret_cast<const Byte*>(buf)))
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{
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if (m_midiPort)
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MIDISend(m_midiPort, m_midi, &list.head);
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else
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MIDIReceived(m_midi, &list.head);
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return len;
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}
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return 0;
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}
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};
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struct MIDIInOut : public IMIDIInOut
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{
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MIDIEndpointRef m_midiIn = 0;
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MIDIPortRef m_midiPortIn = 0;
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MIDIEndpointRef m_midiOut = 0;
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MIDIPortRef m_midiPortOut = 0;
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MIDIInOut(bool virt, ReceiveFunctor&& receiver)
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: IMIDIInOut(virt, std::move(receiver)) {}
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~MIDIInOut()
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{
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if (m_midiIn)
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MIDIEndpointDispose(m_midiIn);
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if (m_midiPortIn)
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MIDIPortDispose(m_midiPortIn);
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if (m_midiOut)
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MIDIEndpointDispose(m_midiOut);
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if (m_midiPortOut)
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MIDIPortDispose(m_midiPortOut);
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}
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std::string description() const
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{
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CFStringRef namestr;
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if (MIDIObjectGetStringProperty(m_midiIn, kMIDIPropertyDisplayName, &namestr))
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return {};
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std::string ret(CFStringGetCStringPtr(namestr, kCFStringEncodingUTF8));
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CFRelease(namestr);
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return ret;
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}
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size_t send(const void* buf, size_t len) const
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{
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union
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{
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MIDIPacketList head;
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Byte storage[512];
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} list;
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MIDIPacket* curPacket = MIDIPacketListInit(&list.head);
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if (MIDIPacketListAdd(&list.head, sizeof(list), curPacket, AudioGetCurrentHostTime(),
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len, reinterpret_cast<const Byte*>(buf)))
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{
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if (m_midiPortOut)
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MIDISend(m_midiPortOut, m_midiOut, &list.head);
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else
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MIDIReceived(m_midiOut, &list.head);
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return len;
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}
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return 0;
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}
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};
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unsigned m_midiInCounter = 0;
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unsigned m_midiOutCounter = 0;
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std::unique_ptr<IMIDIIn> newVirtualMIDIIn(ReceiveFunctor&& receiver)
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{
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if (!m_midiClient)
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return {};
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std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(true, std::move(receiver));
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if (!ret)
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return {};
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char name[256];
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snprintf(name, 256, "Boo MIDI Virtual In %u", m_midiInCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
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OSStatus stat;
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if ((stat = MIDIDestinationCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
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static_cast<IMIDIReceiver*>(ret.get()),
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&static_cast<MIDIIn&>(*ret).m_midi)))
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ret.reset();
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CFRelease(midiName);
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return ret;
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}
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std::unique_ptr<IMIDIOut> newVirtualMIDIOut()
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{
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if (!m_midiClient)
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return {};
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std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(true);
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if (!ret)
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return {};
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char name[256];
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snprintf(name, 256, "Boo MIDI Virtual Out %u", m_midiOutCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDISourceCreate(m_midiClient, midiName, &static_cast<MIDIOut&>(*ret).m_midi))
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ret.reset();
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CFRelease(midiName);
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return ret;
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}
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std::unique_ptr<IMIDIInOut> newVirtualMIDIInOut(ReceiveFunctor&& receiver)
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{
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if (!m_midiClient)
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return {};
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std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(true, std::move(receiver));
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if (!ret)
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return {};
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char name[256];
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snprintf(name, 256, "Boo MIDI Virtual In %u", m_midiInCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDIDestinationCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
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static_cast<IMIDIReceiver*>(ret.get()),
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&static_cast<MIDIInOut&>(*ret).m_midiIn))
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ret.reset();
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CFRelease(midiName);
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if (!ret)
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return {};
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snprintf(name, 256, "Boo MIDI Virtual Out %u", m_midiOutCounter++);
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midiName = CFStringCreateWithCStringNoCopy(nullptr, name, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDISourceCreate(m_midiClient, midiName, &static_cast<MIDIInOut&>(*ret).m_midiOut))
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ret.reset();
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CFRelease(midiName);
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return ret;
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}
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std::unique_ptr<IMIDIIn> newRealMIDIIn(const char* name, ReceiveFunctor&& receiver)
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{
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if (!m_midiClient)
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return {};
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MIDIEndpointRef src = LookupMIDISource(name);
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if (!src)
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return {};
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std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(false, std::move(receiver));
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if (!ret)
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return {};
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char mname[256];
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snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDIInputPortCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
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static_cast<IMIDIReceiver*>(ret.get()),
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&static_cast<MIDIIn&>(*ret).m_midiPort))
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ret.reset();
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else
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MIDIPortConnectSource(static_cast<MIDIIn&>(*ret).m_midiPort, src, nullptr);
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CFRelease(midiName);
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return ret;
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}
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std::unique_ptr<IMIDIOut> newRealMIDIOut(const char* name)
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{
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if (!m_midiClient)
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return {};
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MIDIEndpointRef dst = LookupMIDIDest(name);
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if (!dst)
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return {};
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std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(false);
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if (!ret)
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return {};
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char mname[256];
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snprintf(mname, 256, "Boo MIDI Real Out %u", m_midiOutCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDIOutputPortCreate(m_midiClient, midiName, &static_cast<MIDIOut&>(*ret).m_midiPort))
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ret.reset();
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else
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static_cast<MIDIOut&>(*ret).m_midi = dst;
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CFRelease(midiName);
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return ret;
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}
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std::unique_ptr<IMIDIInOut> newRealMIDIInOut(const char* name, ReceiveFunctor&& receiver)
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{
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if (!m_midiClient)
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return {};
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MIDIEndpointRef src = LookupMIDISource(name);
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if (!src)
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return {};
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MIDIEndpointRef dst = LookupMIDIDest(name);
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if (!dst)
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return {};
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std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(false, std::move(receiver));
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if (!ret)
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return {};
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char mname[256];
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snprintf(mname, 256, "Boo MIDI Real In %u", m_midiInCounter++);
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CFStringRef midiName = CFStringCreateWithCStringNoCopy(nullptr, mname, kCFStringEncodingUTF8, kCFAllocatorNull);
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if (MIDIInputPortCreate(m_midiClient, midiName, MIDIReadProc(MIDIReceiveProc),
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|
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);
|
|
if (MIDIOutputPortCreate(m_midiClient, midiName, &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()
|
|
{
|
|
m_mixInfo.m_channels = _getAvailableSet();
|
|
unsigned chCount = ChannelCount(m_mixInfo.m_channels);
|
|
|
|
AudioStreamBasicDescription desc = {};
|
|
desc.mSampleRate = 96000;
|
|
desc.mFormatID = kAudioFormatLinearPCM;
|
|
desc.mFormatFlags = kLinearPCMFormatFlagIsSignedInteger;
|
|
desc.mBytesPerPacket = chCount * 4;
|
|
desc.mFramesPerPacket = 1;
|
|
desc.mBytesPerFrame = chCount * 4;
|
|
desc.mChannelsPerFrame = chCount;
|
|
desc.mBitsPerChannel = 32;
|
|
|
|
OSStatus err;
|
|
if ((err = AudioQueueNewOutput(&desc, AudioQueueOutputCallback(Callback),
|
|
this, nullptr, nullptr, 0, &m_queue)))
|
|
{
|
|
Log.report(logvisor::Fatal, "unable to create output audio queue");
|
|
return;
|
|
}
|
|
|
|
Float64 actualSampleRate;
|
|
UInt32 argSize = 8;
|
|
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");
|
|
return;
|
|
}
|
|
|
|
desc.mSampleRate = actualSampleRate;
|
|
if ((err = AudioQueueNewOutput(&desc, AudioQueueOutputCallback(Callback),
|
|
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_sampleFormat = SOXR_INT32_I;
|
|
m_mixInfo.m_bitsPerSample = 32;
|
|
m_5msFrames = actualSampleRate * 5 / 1000;
|
|
|
|
ChannelMap& chMapOut = m_mixInfo.m_channelMap;
|
|
if (chCount > 2)
|
|
{
|
|
AudioChannelLayout layout;
|
|
UInt32 layoutSz = sizeof(layout);
|
|
if (AudioQueueGetProperty(m_queue, kAudioQueueProperty_ChannelLayout, &layout, &layoutSz))
|
|
{
|
|
Log.report(logvisor::Fatal, "unable to get channel layout from audio queue");
|
|
return;
|
|
}
|
|
|
|
switch (layout.mChannelLayoutTag)
|
|
{
|
|
case kAudioChannelLayoutTag_UseChannelDescriptions:
|
|
chMapOut.m_channelCount = layout.mNumberChannelDescriptions;
|
|
for (int i=0 ; i<layout.mNumberChannelDescriptions ; ++i)
|
|
{
|
|
AudioChannel ch = AQSChannelToBooChannel(layout.mChannelDescriptions[i].mChannelLabel);
|
|
chMapOut.m_channels[i] = ch;
|
|
}
|
|
break;
|
|
case kAudioChannelLayoutTag_UseChannelBitmap:
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_Left) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_Right) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_Center) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontCenter;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_LFEScreen) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::LFE;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_LeftSurround) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearLeft;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_RightSurround) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::RearRight;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_LeftSurroundDirect) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideLeft;
|
|
if ((layout.mChannelBitmap & kAudioChannelBit_RightSurroundDirect) != 0)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::SideRight;
|
|
break;
|
|
case kAudioChannelLayoutTag_Stereo:
|
|
case kAudioChannelLayoutTag_StereoHeadphones:
|
|
chMapOut.m_channelCount = 2;
|
|
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
|
|
chMapOut.m_channels[1] = AudioChannel::FrontRight;
|
|
break;
|
|
case kAudioChannelLayoutTag_Quadraphonic:
|
|
chMapOut.m_channelCount = 4;
|
|
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
|
|
chMapOut.m_channels[1] = AudioChannel::FrontRight;
|
|
chMapOut.m_channels[2] = AudioChannel::RearLeft;
|
|
chMapOut.m_channels[3] = AudioChannel::RearRight;
|
|
break;
|
|
case kAudioChannelLayoutTag_Pentagonal:
|
|
chMapOut.m_channelCount = 5;
|
|
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
|
|
chMapOut.m_channels[1] = AudioChannel::FrontRight;
|
|
chMapOut.m_channels[2] = AudioChannel::RearLeft;
|
|
chMapOut.m_channels[3] = AudioChannel::RearRight;
|
|
chMapOut.m_channels[4] = AudioChannel::FrontCenter;
|
|
break;
|
|
default:
|
|
Log.report(logvisor::Fatal,
|
|
"unknown channel layout %u; using stereo",
|
|
layout.mChannelLayoutTag);
|
|
chMapOut.m_channelCount = 2;
|
|
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
|
|
chMapOut.m_channels[1] = AudioChannel::FrontRight;
|
|
break;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontLeft;
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::FrontRight;
|
|
}
|
|
|
|
while (chMapOut.m_channelCount < chCount)
|
|
chMapOut.m_channels[chMapOut.m_channelCount++] = AudioChannel::Unknown;
|
|
|
|
m_mixInfo.m_periodFrames = 2400;
|
|
for (int i=0 ; i<3 ; ++i)
|
|
if (AudioQueueAllocateBuffer(m_queue, m_mixInfo.m_periodFrames * chCount * 4, &m_buffers[i]))
|
|
{
|
|
Log.report(logvisor::Fatal, "unable to create audio queue buffer");
|
|
AudioQueueDispose(m_queue, false);
|
|
m_queue = nullptr;
|
|
return;
|
|
}
|
|
|
|
m_frameBytes = m_mixInfo.m_periodFrames * m_mixInfo.m_channelMap.m_channelCount * 4;
|
|
|
|
for (unsigned i=0 ; i<3 ; ++i)
|
|
{
|
|
_pumpAndMixVoices(m_mixInfo.m_periodFrames, reinterpret_cast<int32_t*>(m_buffers[i]->mAudioData));
|
|
m_buffers[i]->mAudioDataByteSize = m_frameBytes;
|
|
AudioQueueEnqueueBuffer(m_queue, m_buffers[i], 0, nullptr);
|
|
}
|
|
AudioQueuePrime(m_queue, 0, nullptr);
|
|
AudioQueueStart(m_queue, nullptr);
|
|
|
|
/* Also create shared MIDI client */
|
|
MIDIClientCreate(CFSTR("Boo MIDI"), nullptr, nullptr, &m_midiClient);
|
|
}
|
|
|
|
~AQSAudioVoiceEngine()
|
|
{
|
|
AudioQueueDispose(m_queue, false);
|
|
if (m_midiClient)
|
|
MIDIClientDispose(m_midiClient);
|
|
}
|
|
|
|
void pumpAndMixVoices()
|
|
{
|
|
std::unique_lock<std::mutex> lk(m_engineMutex);
|
|
if (m_cbWaiting)
|
|
{
|
|
m_engineEnterCv.notify_one();
|
|
m_engineLeaveCv.wait(lk);
|
|
}
|
|
}
|
|
};
|
|
|
|
std::unique_ptr<IAudioVoiceEngine> NewAudioVoiceEngine()
|
|
{
|
|
std::unique_ptr<IAudioVoiceEngine> ret = std::make_unique<AQSAudioVoiceEngine>();
|
|
if (!static_cast<AQSAudioVoiceEngine&>(*ret).m_queue)
|
|
return {};
|
|
return ret;
|
|
}
|
|
|
|
}
|