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boo/lib/audiodev/WASAPI.cpp

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#include "lib/audiodev/AudioVoiceEngine.hpp"
#include <iterator>
#include <Mmdeviceapi.h>
#include <Audioclient.h>
#include <mmsystem.h>
#include <Functiondiscoverykeys_devpkey.h>
#include <logvisor/logvisor.hpp>
#include <nowide/convert.hpp>
#include <optick.h>
#ifdef TE_VIRTUAL_MIDI
#include <teVirtualMIDI.h>
using pfnvirtualMIDICreatePortEx2 = LPVM_MIDI_PORT(CALLBACK*)(LPCWSTR portName, LPVM_MIDI_DATA_CB callback,
DWORD_PTR dwCallbackInstance, DWORD maxSysexLength,
DWORD flags);
using pfnvirtualMIDIClosePort = void(CALLBACK*)(LPVM_MIDI_PORT midiPort);
using pfnvirtualMIDISendData = BOOL(CALLBACK*)(LPVM_MIDI_PORT midiPort, LPBYTE midiDataBytes, DWORD length);
using pfnvirtualMIDIGetDriverVersion = LPCWSTR(CALLBACK*)(PWORD major, PWORD minor, PWORD release, PWORD build);
static pfnvirtualMIDICreatePortEx2 virtualMIDICreatePortEx2PROC = nullptr;
static pfnvirtualMIDIClosePort virtualMIDIClosePortPROC = nullptr;
static pfnvirtualMIDISendData virtualMIDISendDataPROC = nullptr;
static pfnvirtualMIDIGetDriverVersion virtualMIDIGetDriverVersionPROC = nullptr;
static double PerfFrequency = 0.0;
#endif
#if !WINDOWS_STORE
const CLSID CLSID_MMDeviceEnumerator = __uuidof(MMDeviceEnumerator);
const IID IID_IMMDeviceEnumerator = __uuidof(IMMDeviceEnumerator);
#else
using namespace Windows::Media::Devices;
#endif
const IID IID_IAudioClient = __uuidof(IAudioClient);
const IID IID_IAudioRenderClient = __uuidof(IAudioRenderClient);
#include <wrl/client.h>
template <class T>
using ComPtr = Microsoft::WRL::ComPtr<T>;
template <class T>
static inline ComPtr<T>* ReferenceComPtr(ComPtr<T>& ptr) {
return reinterpret_cast<ComPtr<T>*>(ptr.GetAddressOf());
}
namespace boo {
static logvisor::Module Log("boo::WASAPI");
#define SAFE_RELEASE(punk) \
if ((punk) != nullptr) { \
(punk)->Release(); \
(punk) = nullptr; \
}
struct WASAPIAudioVoiceEngine : BaseAudioVoiceEngine {
#if !WINDOWS_STORE
ComPtr<IMMDeviceEnumerator> m_enumerator;
ComPtr<IMMDevice> m_device;
#else
bool m_ready = false;
#endif
ComPtr<IAudioClient> m_audClient;
ComPtr<IAudioRenderClient> m_renderClient;
std::string m_sinkName;
size_t m_curBufFrame = 0;
std::vector<float> m_5msBuffer;
#if !WINDOWS_STORE
struct NotificationClient final : public IMMNotificationClient {
WASAPIAudioVoiceEngine& m_parent;
LONG _cRef;
IMMDeviceEnumerator* _pEnumerator;
NotificationClient(WASAPIAudioVoiceEngine& parent) : m_parent(parent), _cRef(1), _pEnumerator(nullptr) {}
~NotificationClient(){SAFE_RELEASE(_pEnumerator)}
// IUnknown methods -- AddRef, Release, and QueryInterface
ULONG STDMETHODCALLTYPE AddRef() override {
return InterlockedIncrement(&_cRef);
}
ULONG STDMETHODCALLTYPE Release() override {
ULONG ulRef = InterlockedDecrement(&_cRef);
if (0 == ulRef) {
delete this;
}
return ulRef;
}
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, VOID** ppvInterface) override {
if (IID_IUnknown == riid) {
AddRef();
*ppvInterface = (IUnknown*)this;
} else if (__uuidof(IMMNotificationClient) == riid) {
AddRef();
*ppvInterface = (IMMNotificationClient*)this;
} else {
*ppvInterface = nullptr;
return E_NOINTERFACE;
}
return S_OK;
}
// Callback methods for device-event notifications.
HRESULT STDMETHODCALLTYPE OnDefaultDeviceChanged(EDataFlow flow, ERole role, LPCWSTR pwstrDeviceId) override {
m_parent.m_rebuild = true;
return S_OK;
}
HRESULT STDMETHODCALLTYPE OnDeviceAdded(LPCWSTR pwstrDeviceId) override { return S_OK; }
HRESULT STDMETHODCALLTYPE OnDeviceRemoved(LPCWSTR pwstrDeviceId) override { return S_OK; }
HRESULT STDMETHODCALLTYPE OnDeviceStateChanged(LPCWSTR pwstrDeviceId, DWORD dwNewState) override { return S_OK; }
HRESULT STDMETHODCALLTYPE OnPropertyValueChanged(LPCWSTR pwstrDeviceId, const PROPERTYKEY key) override {
return S_OK;
}
} m_notificationClient;
#endif
void _buildAudioRenderClient() {
#if !WINDOWS_STORE
if (!m_device) {
if (FAILED(m_enumerator->GetDevice(nowide::widen(m_sinkName).c_str(), &m_device))) {
Log.report(logvisor::Error, FMT_STRING("unable to obtain audio device {}"), m_sinkName);
m_device.Reset();
return;
}
}
if (FAILED(m_device->Activate(IID_IAudioClient, CLSCTX_ALL, nullptr, &m_audClient))) {
Log.report(logvisor::Error, FMT_STRING("unable to create audio client from device"));
m_device.Reset();
return;
}
#endif
WAVEFORMATEXTENSIBLE* pwfx;
if (FAILED(m_audClient->GetMixFormat((WAVEFORMATEX**)&pwfx))) {
Log.report(logvisor::Error, FMT_STRING("unable to obtain audio mix format from device"));
#if !WINDOWS_STORE
m_device.Reset();
#endif
return;
}
/* Get channel information */
if ((pwfx->dwChannelMask & (SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT)) ==
(SPEAKER_FRONT_LEFT | SPEAKER_FRONT_RIGHT)) {
m_mixInfo.m_channels = AudioChannelSet::Stereo;
if ((pwfx->dwChannelMask & (SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)) ==
(SPEAKER_BACK_LEFT | SPEAKER_BACK_RIGHT)) {
m_mixInfo.m_channels = AudioChannelSet::Quad;
if ((pwfx->dwChannelMask & (SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY)) ==
(SPEAKER_FRONT_CENTER | SPEAKER_LOW_FREQUENCY)) {
m_mixInfo.m_channels = AudioChannelSet::Surround51;
if ((pwfx->dwChannelMask & (SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)) ==
(SPEAKER_SIDE_LEFT | SPEAKER_SIDE_RIGHT)) {
m_mixInfo.m_channels = AudioChannelSet::Surround71;
}
}
}
}
ChannelMap& chMapOut = m_mixInfo.m_channelMap;
switch (pwfx->Format.nChannels) {
case 2:
chMapOut.m_channelCount = 2;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
break;
case 4:
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 5:
chMapOut.m_channelCount = 5;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
chMapOut.m_channels[2] = AudioChannel::FrontCenter;
chMapOut.m_channels[3] = AudioChannel::RearLeft;
chMapOut.m_channels[4] = AudioChannel::RearRight;
break;
case 6:
chMapOut.m_channelCount = 6;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
chMapOut.m_channels[2] = AudioChannel::FrontCenter;
chMapOut.m_channels[3] = AudioChannel::LFE;
chMapOut.m_channels[4] = AudioChannel::RearLeft;
chMapOut.m_channels[5] = AudioChannel::RearRight;
break;
case 8:
chMapOut.m_channelCount = 8;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
chMapOut.m_channels[2] = AudioChannel::FrontCenter;
chMapOut.m_channels[3] = AudioChannel::LFE;
chMapOut.m_channels[4] = AudioChannel::RearLeft;
chMapOut.m_channels[5] = AudioChannel::RearRight;
chMapOut.m_channels[6] = AudioChannel::SideLeft;
chMapOut.m_channels[7] = AudioChannel::SideRight;
break;
default:
Log.report(logvisor::Warning, FMT_STRING("unknown channel layout {}; using stereo"), pwfx->Format.nChannels);
chMapOut.m_channelCount = 2;
chMapOut.m_channels[0] = AudioChannel::FrontLeft;
chMapOut.m_channels[1] = AudioChannel::FrontRight;
break;
}
/* Initialize audio client */
if (FAILED(m_audClient->Initialize(AUDCLNT_SHAREMODE_SHARED, 0, 450000, /* 45ms */
0, (WAVEFORMATEX*)pwfx, nullptr))) {
Log.report(logvisor::Error, FMT_STRING("unable to initialize audio client"));
#if !WINDOWS_STORE
m_device.Reset();
#endif
CoTaskMemFree(pwfx);
return;
}
m_mixInfo.m_sampleRate = pwfx->Format.nSamplesPerSec;
m_5msFrames = (m_mixInfo.m_sampleRate * 5 / 500 + 1) / 2;
m_curBufFrame = m_5msFrames;
m_5msBuffer.resize(m_5msFrames * chMapOut.m_channelCount);
if (pwfx->Format.wFormatTag == WAVE_FORMAT_PCM ||
(pwfx->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE && pwfx->SubFormat == KSDATAFORMAT_SUBTYPE_PCM)) {
if (pwfx->Format.wBitsPerSample == 16) {
m_mixInfo.m_sampleFormat = SOXR_INT16_I;
m_mixInfo.m_bitsPerSample = 16;
} else if (pwfx->Format.wBitsPerSample == 32) {
m_mixInfo.m_sampleFormat = SOXR_INT32_I;
m_mixInfo.m_bitsPerSample = 32;
} else {
Log.report(logvisor::Fatal, FMT_STRING("unsupported bits-per-sample {}"), pwfx->Format.wBitsPerSample);
#if !WINDOWS_STORE
m_device.Reset();
#endif
return;
}
} else if (pwfx->Format.wFormatTag == WAVE_FORMAT_IEEE_FLOAT ||
(pwfx->Format.wFormatTag == WAVE_FORMAT_EXTENSIBLE &&
pwfx->SubFormat == KSDATAFORMAT_SUBTYPE_IEEE_FLOAT)) {
if (pwfx->Format.wBitsPerSample == 32) {
m_mixInfo.m_sampleFormat = SOXR_FLOAT32_I;
m_mixInfo.m_bitsPerSample = 32;
} else {
Log.report(logvisor::Error, FMT_STRING("unsupported floating-point bits-per-sample {}"), pwfx->Format.wBitsPerSample);
#if !WINDOWS_STORE
m_device.Reset();
#endif
return;
}
}
CoTaskMemFree(pwfx);
UINT32 bufferFrameCount;
if (FAILED(m_audClient->GetBufferSize(&bufferFrameCount))) {
Log.report(logvisor::Error, FMT_STRING("unable to get audio buffer frame count"));
#if !WINDOWS_STORE
m_device.Reset();
#endif
return;
}
m_mixInfo.m_periodFrames = bufferFrameCount;
if (FAILED(m_audClient->GetService(IID_IAudioRenderClient, &m_renderClient))) {
Log.report(logvisor::Error, FMT_STRING("unable to create audio render client"));
#if !WINDOWS_STORE
m_device.Reset();
#endif
return;
}
}
#if WINDOWS_STORE
struct CompletionHandler : IActivateAudioInterfaceCompletionHandler {
WASAPIAudioVoiceEngine& e;
LONG _cRef = 1;
CompletionHandler(WASAPIAudioVoiceEngine& e) : e(e) {}
HRESULT ActivateCompleted(IActivateAudioInterfaceAsyncOperation* operation) {
return e.ActivateCompleted(operation);
}
ULONG STDMETHODCALLTYPE AddRef() { return InterlockedIncrement(&_cRef); }
ULONG STDMETHODCALLTYPE Release() {
ULONG ulRef = InterlockedDecrement(&_cRef);
if (0 == ulRef) {
delete this;
}
return ulRef;
}
HRESULT STDMETHODCALLTYPE QueryInterface(REFIID riid, VOID** ppvInterface) {
if (IID_IUnknown == riid) {
AddRef();
*ppvInterface = (IUnknown*)this;
} else if (__uuidof(IActivateAudioInterfaceCompletionHandler) == riid) {
AddRef();
*ppvInterface = (IActivateAudioInterfaceCompletionHandler*)this;
} else {
*ppvInterface = nullptr;
return E_NOINTERFACE;
}
return S_OK;
}
} m_completion = {*this};
HRESULT ActivateCompleted(IActivateAudioInterfaceAsyncOperation* operation) {
ComPtr<IUnknown> punkAudioInterface;
HRESULT hrActivateResult;
operation->GetActivateResult(&hrActivateResult, &punkAudioInterface);
punkAudioInterface.As<IAudioClient>(&m_audClient);
_buildAudioRenderClient();
m_ready = true;
return ERROR_SUCCESS;
}
#endif
WASAPIAudioVoiceEngine()
#if !WINDOWS_STORE
: m_notificationClient(*this)
#endif
{
#if !WINDOWS_STORE
#ifdef TE_VIRTUAL_MIDI
HMODULE virtualMidiModule;
if (!virtualMIDICreatePortEx2PROC && (virtualMidiModule = LoadLibraryW(L"teVirtualMIDI64.dll"))) {
virtualMIDICreatePortEx2PROC =
(pfnvirtualMIDICreatePortEx2)GetProcAddress(virtualMidiModule, "virtualMIDICreatePortEx2");
virtualMIDIClosePortPROC = (pfnvirtualMIDIClosePort)GetProcAddress(virtualMidiModule, "virtualMIDIClosePort");
virtualMIDISendDataPROC = (pfnvirtualMIDISendData)GetProcAddress(virtualMidiModule, "virtualMIDISendData");
virtualMIDIGetDriverVersionPROC =
(pfnvirtualMIDIGetDriverVersion)GetProcAddress(virtualMidiModule, "virtualMIDIGetDriverVersion");
LARGE_INTEGER pf;
QueryPerformanceFrequency(&pf);
PerfFrequency = double(pf.QuadPart);
}
#endif
/* Enumerate default audio device */
if (FAILED(
CoCreateInstance(CLSID_MMDeviceEnumerator, nullptr, CLSCTX_ALL, IID_IMMDeviceEnumerator, &m_enumerator))) {
Log.report(logvisor::Error, FMT_STRING("unable to create MMDeviceEnumerator instance"));
return;
}
if (FAILED(m_enumerator->RegisterEndpointNotificationCallback(&m_notificationClient))) {
Log.report(logvisor::Error, FMT_STRING("unable to register multimedia event callback"));
m_device.Reset();
return;
}
if (FAILED(m_enumerator->GetDefaultAudioEndpoint(eRender, eConsole, &m_device))) {
Log.report(logvisor::Error, FMT_STRING("unable to obtain default audio device"));
m_device.Reset();
return;
}
LPWSTR sinkName = nullptr;
m_device->GetId(&sinkName);
m_sinkName = nowide::narrow(sinkName);
CoTaskMemFree(sinkName);
_buildAudioRenderClient();
#else
auto deviceIdStr = MediaDevice::GetDefaultAudioRenderId(Windows::Media::Devices::AudioDeviceRole::Default);
ComPtr<IActivateAudioInterfaceAsyncOperation> asyncOp;
ActivateAudioInterfaceAsync(deviceIdStr->Data(), __uuidof(IAudioClient3), nullptr, &m_completion, &asyncOp);
#endif
}
bool m_started = false;
bool m_rebuild = false;
void _rebuildAudioRenderClient() {
soxr_datatype_t oldFmt = m_mixInfo.m_sampleFormat;
_buildAudioRenderClient();
m_rebuild = false;
m_started = false;
if (m_mixInfo.m_sampleFormat != oldFmt)
Log.report(logvisor::Fatal, FMT_STRING("audio device sample format changed, boo doesn't support this!!"));
_resetSampleRate();
}
void pumpAndMixVoices() override {
OPTICK_EVENT();
#if WINDOWS_STORE
if (!m_ready)
return;
#else
if (!m_device)
return;
#endif
int attempt = 0;
while (true) {
if (attempt >= 10)
Log.report(logvisor::Fatal, FMT_STRING("unable to setup AudioRenderClient"));
if (m_rebuild) {
m_device.Reset();
_rebuildAudioRenderClient();
}
HRESULT res;
if (!m_started) {
res = m_audClient->Start();
if (FAILED(res)) {
m_rebuild = true;
++attempt;
continue;
}
m_started = true;
}
UINT32 numFramesPadding;
res = m_audClient->GetCurrentPadding(&numFramesPadding);
if (FAILED(res)) {
m_rebuild = true;
++attempt;
continue;
}
size_t frames = m_mixInfo.m_periodFrames - numFramesPadding;
if (frames <= 0)
return;
BYTE* bufOut;
res = m_renderClient->GetBuffer(frames, &bufOut);
if (FAILED(res)) {
m_rebuild = true;
++attempt;
continue;
}
for (size_t f = 0; f < frames;) {
if (m_curBufFrame == m_5msFrames) {
_pumpAndMixVoices(m_5msFrames, m_5msBuffer.data());
m_curBufFrame = 0;
}
size_t remRenderFrames = std::min(frames - f, m_5msFrames - m_curBufFrame);
if (remRenderFrames) {
memmove(reinterpret_cast<float*>(bufOut) + m_mixInfo.m_channelMap.m_channelCount * f,
&m_5msBuffer[m_curBufFrame * m_mixInfo.m_channelMap.m_channelCount],
remRenderFrames * m_mixInfo.m_channelMap.m_channelCount * sizeof(float));
m_curBufFrame += remRenderFrames;
f += remRenderFrames;
}
}
res = m_renderClient->ReleaseBuffer(frames, 0);
if (FAILED(res)) {
m_rebuild = true;
++attempt;
continue;
}
break;
}
}
std::string getCurrentAudioOutput() const override { return m_sinkName; }
bool setCurrentAudioOutput(const char* name) override {
ComPtr<IMMDevice> newDevice;
if (FAILED(m_enumerator->GetDevice(nowide::widen(name).c_str(), &newDevice))) {
Log.report(logvisor::Error, FMT_STRING("unable to obtain audio device {}"), name);
return false;
}
m_device = newDevice;
m_sinkName = name;
_rebuildAudioRenderClient();
return true;
}
std::vector<std::pair<std::string, std::string>> enumerateAudioOutputs() const override {
std::vector<std::pair<std::string, std::string>> ret;
ComPtr<IMMDeviceCollection> collection;
if (FAILED(m_enumerator->EnumAudioEndpoints(eRender, DEVICE_STATE_ACTIVE, &collection))) {
Log.report(logvisor::Error, FMT_STRING("unable to enumerate audio outputs"));
return ret;
}
UINT count = 0;
collection->GetCount(&count);
for (UINT i = 0; i < count; ++i) {
ComPtr<IMMDevice> device;
collection->Item(i, &device);
LPWSTR devName;
device->GetId(&devName);
ComPtr<IPropertyStore> props;
device->OpenPropertyStore(STGM_READ, &props);
PROPVARIANT val = {};
props->GetValue(PKEY_Device_FriendlyName, &val);
std::string friendlyName;
if (val.vt == VT_LPWSTR)
friendlyName = nowide::narrow(val.pwszVal);
ret.emplace_back(nowide::narrow(devName), std::move(friendlyName));
}
return ret;
}
#if !WINDOWS_STORE
std::vector<std::pair<std::string, std::string>> enumerateMIDIInputs() const override {
std::vector<std::pair<std::string, std::string>> ret;
UINT numInDevices = midiInGetNumDevs();
ret.reserve(numInDevices);
for (UINT i = 0; i < numInDevices; ++i) {
std::string name = fmt::format(FMT_STRING("in{}"), i);
MIDIINCAPS caps;
if (FAILED(midiInGetDevCaps(i, &caps, sizeof(caps))))
continue;
#ifdef UNICODE
ret.emplace_back(std::move(name), nowide::narrow(caps.szPname));
#else
ret.emplace_back(std::move(name), std::string(caps.szPname));
#endif
}
return ret;
}
bool supportsVirtualMIDIIn() const override {
#ifdef TE_VIRTUAL_MIDI
WORD major, minor, release, build;
return virtualMIDIGetDriverVersionPROC &&
virtualMIDIGetDriverVersionPROC(&major, &minor, &release, &build) != nullptr;
#else
return false;
#endif
}
#ifdef TE_VIRTUAL_MIDI
static void CALLBACK VirtualMIDIReceiveProc(LPVM_MIDI_PORT midiPort, LPBYTE midiDataBytes, DWORD length,
IMIDIReceiver* dwInstance) {
std::vector<uint8_t> bytes;
bytes.resize(length);
memcpy(&bytes[0], midiDataBytes, length);
double timestamp;
LARGE_INTEGER perf;
QueryPerformanceCounter(&perf);
timestamp = perf.QuadPart / PerfFrequency;
dwInstance->m_receiver(std::move(bytes), timestamp);
}
#endif
static void CALLBACK MIDIReceiveProc(HMIDIIN hMidiIn, UINT wMsg, IMIDIReceiver* dwInstance, DWORD_PTR dwParam1,
DWORD_PTR dwParam2) {
if (wMsg == MIM_DATA) {
uint8_t(&ptr)[3] = reinterpret_cast<uint8_t(&)[3]>(dwParam1);
std::vector<uint8_t> bytes(std::cbegin(ptr), std::cend(ptr));
dwInstance->m_receiver(std::move(bytes), dwParam2 / 1000.0);
}
}
#ifdef TE_VIRTUAL_MIDI
struct VMIDIIn : public IMIDIIn {
LPVM_MIDI_PORT m_midi = 0;
VMIDIIn(WASAPIAudioVoiceEngine* parent, ReceiveFunctor&& receiver) : IMIDIIn(parent, true, std::move(receiver)) {}
~VMIDIIn() override { virtualMIDIClosePortPROC(m_midi); }
std::string description() const override { return "Virtual MIDI-In"; }
};
struct VMIDIOut : public IMIDIOut {
LPVM_MIDI_PORT m_midi = 0;
VMIDIOut(WASAPIAudioVoiceEngine* parent) : IMIDIOut(parent, true) {}
~VMIDIOut() override { virtualMIDIClosePortPROC(m_midi); }
std::string description() const override { return "Virtual MIDI-Out"; }
size_t send(const void* buf, size_t len) const override {
return virtualMIDISendDataPROC(m_midi, (LPBYTE)buf, len) ? len : 0;
}
};
struct VMIDIInOut : public IMIDIInOut {
LPVM_MIDI_PORT m_midi = 0;
VMIDIInOut(WASAPIAudioVoiceEngine* parent, ReceiveFunctor&& receiver)
: IMIDIInOut(parent, true, std::move(receiver)) {}
~VMIDIInOut() override { virtualMIDIClosePortPROC(m_midi); }
std::string description() const override { return "Virtual MIDI-In/Out"; }
size_t send(const void* buf, size_t len) const override {
return virtualMIDISendDataPROC(m_midi, (LPBYTE)buf, len) ? len : 0;
}
};
#endif
struct MIDIIn : public IMIDIIn {
HMIDIIN m_midi = 0;
MIDIIn(WASAPIAudioVoiceEngine* parent, ReceiveFunctor&& receiver) : IMIDIIn(parent, false, std::move(receiver)) {}
~MIDIIn() override { midiInClose(m_midi); }
std::string description() const override {
UINT id = 0;
midiInGetID(m_midi, &id);
MIDIINCAPS caps;
if (FAILED(midiInGetDevCaps(id, &caps, sizeof(caps))))
return {};
#ifdef UNICODE
return nowide::narrow(caps.szPname);
#else
return caps.szPname;
#endif
}
};
struct MIDIOut : public IMIDIOut {
HMIDIOUT m_midi = 0;
HMIDISTRM m_strm = 0;
uint8_t m_buf[512];
MIDIHDR m_hdr = {};
MIDIOut(WASAPIAudioVoiceEngine* parent) : IMIDIOut(parent, false) {}
void prepare() {
UINT id = 0;
midiOutGetID(m_midi, &id);
m_hdr.lpData = reinterpret_cast<LPSTR>(m_buf);
m_hdr.dwBufferLength = 512;
m_hdr.dwFlags = MHDR_ISSTRM;
midiOutPrepareHeader(m_midi, &m_hdr, sizeof(m_hdr));
midiStreamOpen(&m_strm, &id, 1, 0, 0, CALLBACK_NULL);
}
~MIDIOut() override {
midiStreamClose(m_strm);
midiOutUnprepareHeader(m_midi, &m_hdr, sizeof(m_hdr));
midiOutClose(m_midi);
}
std::string description() const override {
UINT id = 0;
midiOutGetID(m_midi, &id);
MIDIOUTCAPS caps;
if (FAILED(midiOutGetDevCaps(id, &caps, sizeof(caps))))
return {};
#ifdef UNICODE
return nowide::narrow(caps.szPname);
#else
return caps.szPname;
#endif
}
size_t send(const void* buf, size_t len) const override {
memcpy(const_cast<MIDIOut*>(this)->m_buf, buf, std::min(len, size_t(512)));
const_cast<MIDIOut*>(this)->m_hdr.dwBytesRecorded = len;
midiStreamOut(m_strm, LPMIDIHDR(&m_hdr), sizeof(m_hdr));
return len;
}
};
struct MIDIInOut : public IMIDIInOut {
HMIDIIN m_midiIn = 0;
HMIDIOUT m_midiOut = 0;
HMIDISTRM m_strm = 0;
uint8_t m_buf[512];
MIDIHDR m_hdr = {};
MIDIInOut(WASAPIAudioVoiceEngine* parent, ReceiveFunctor&& receiver)
: IMIDIInOut(parent, false, std::move(receiver)) {}
void prepare() {
UINT id = 0;
midiOutGetID(m_midiOut, &id);
m_hdr.lpData = reinterpret_cast<LPSTR>(m_buf);
m_hdr.dwBufferLength = 512;
m_hdr.dwFlags = MHDR_ISSTRM;
midiOutPrepareHeader(m_midiOut, &m_hdr, sizeof(m_hdr));
midiStreamOpen(&m_strm, &id, 1, 0, 0, CALLBACK_NULL);
}
~MIDIInOut() override {
midiInClose(m_midiIn);
midiStreamClose(m_strm);
midiOutUnprepareHeader(m_midiOut, &m_hdr, sizeof(m_hdr));
midiOutClose(m_midiOut);
}
std::string description() const override {
UINT id = 0;
midiOutGetID(m_midiOut, &id);
MIDIOUTCAPS caps;
if (FAILED(midiOutGetDevCaps(id, &caps, sizeof(caps))))
return {};
#ifdef UNICODE
return nowide::narrow(caps.szPname);
#else
return caps.szPname;
#endif
}
size_t send(const void* buf, size_t len) const override {
memcpy(const_cast<uint8_t*>(m_buf), buf, std::min(len, size_t(512)));
const_cast<MIDIHDR&>(m_hdr).dwBytesRecorded = len;
midiStreamOut(m_strm, LPMIDIHDR(&m_hdr), sizeof(m_hdr));
return len;
}
};
std::unique_ptr<IMIDIIn> newVirtualMIDIIn(ReceiveFunctor&& receiver) override {
#ifdef TE_VIRTUAL_MIDI
if (!virtualMIDICreatePortEx2PROC)
return {};
std::unique_ptr<IMIDIIn> ret = std::make_unique<VMIDIIn>(this, std::move(receiver));
if (!ret)
return {};
std::string name = std::string(APP->getFriendlyName()) + " MIDI-In";
auto port = virtualMIDICreatePortEx2PROC(name.c_str(), LPVM_MIDI_DATA_CB(VirtualMIDIReceiveProc),
DWORD_PTR(static_cast<IMIDIReceiver*>(ret.get())), 512,
TE_VM_FLAGS_PARSE_RX | TE_VM_FLAGS_INSTANTIATE_RX_ONLY);
if (!port)
return {};
static_cast<VMIDIIn&>(*ret).m_midi = port;
return ret;
#else
return {};
#endif
}
std::unique_ptr<IMIDIOut> newVirtualMIDIOut() override {
#ifdef TE_VIRTUAL_MIDI
if (!virtualMIDICreatePortEx2PROC)
return {};
std::unique_ptr<IMIDIOut> ret = std::make_unique<VMIDIOut>(this);
if (!ret)
return {};
std::string name = std::string(APP->getFriendlyName()) + " MIDI-Out";
auto port = virtualMIDICreatePortEx2PROC(name.c_str(), nullptr, 0, 512,
TE_VM_FLAGS_PARSE_TX | TE_VM_FLAGS_INSTANTIATE_TX_ONLY);
if (!port)
return {};
static_cast<VMIDIOut&>(*ret).m_midi = port;
return ret;
#else
return {};
#endif
}
std::unique_ptr<IMIDIInOut> newVirtualMIDIInOut(ReceiveFunctor&& receiver) override {
#ifdef TE_VIRTUAL_MIDI
if (!virtualMIDICreatePortEx2PROC)
return {};
std::unique_ptr<IMIDIInOut> ret = std::make_unique<VMIDIInOut>(this, std::move(receiver));
if (!ret)
return {};
std::string name = std::string(APP->getFriendlyName()) + " MIDI-In/Out";
auto port =
virtualMIDICreatePortEx2PROC(name.c_str(), LPVM_MIDI_DATA_CB(VirtualMIDIReceiveProc),
DWORD_PTR(static_cast<IMIDIReceiver*>(ret.get())), 512, TE_VM_FLAGS_SUPPORTED);
if (!port)
return {};
static_cast<VMIDIInOut&>(*ret).m_midi = port;
return ret;
#else
return {};
#endif
}
std::unique_ptr<IMIDIIn> newRealMIDIIn(const char* name, ReceiveFunctor&& receiver) override {
if (strncmp(name, "in", 2))
return {};
long id = strtol(name + 2, nullptr, 10);
std::unique_ptr<IMIDIIn> ret = std::make_unique<MIDIIn>(this, std::move(receiver));
if (!ret)
return {};
if (FAILED(midiInOpen(&static_cast<MIDIIn&>(*ret).m_midi, id, DWORD_PTR(MIDIReceiveProc),
DWORD_PTR(static_cast<IMIDIReceiver*>(ret.get())), CALLBACK_FUNCTION)))
return {};
midiInStart(static_cast<MIDIIn&>(*ret).m_midi);
return ret;
}
std::unique_ptr<IMIDIOut> newRealMIDIOut(const char* name) override {
if (strncmp(name, "out", 3))
return {};
long id = strtol(name + 3, nullptr, 10);
std::unique_ptr<IMIDIOut> ret = std::make_unique<MIDIOut>(this);
if (!ret)
return {};
if (FAILED(midiOutOpen(&static_cast<MIDIOut&>(*ret).m_midi, id, 0, 0, CALLBACK_NULL)))
return {};
static_cast<MIDIOut&>(*ret).prepare();
return ret;
}
std::unique_ptr<IMIDIInOut> newRealMIDIInOut(const char* name, ReceiveFunctor&& receiver) override {
const char* in = strstr(name, "in");
const char* out = strstr(name, "out");
if (!in || !out)
return {};
long inId = strtol(in + 2, nullptr, 10);
long outId = strtol(out + 3, nullptr, 10);
std::unique_ptr<IMIDIInOut> ret = std::make_unique<MIDIInOut>(this, std::move(receiver));
if (!ret)
return {};
if (FAILED(midiInOpen(&static_cast<MIDIInOut&>(*ret).m_midiIn, inId, DWORD_PTR(MIDIReceiveProc),
DWORD_PTR(static_cast<IMIDIReceiver*>(ret.get())), CALLBACK_FUNCTION)))
return {};
midiInStart(static_cast<MIDIInOut&>(*ret).m_midiIn);
if (FAILED(midiOutOpen(&static_cast<MIDIInOut&>(*ret).m_midiOut, outId, 0, 0, CALLBACK_NULL)))
return {};
static_cast<MIDIInOut&>(*ret).prepare();
return ret;
}
bool useMIDILock() const override { return true; }
#else
std::vector<std::pair<std::string, std::string>> enumerateMIDIDevices() const override { return {}; }
std::unique_ptr<IMIDIIn> newVirtualMIDIIn(ReceiveFunctor&& receiver) override { return {}; }
std::unique_ptr<IMIDIOut> newVirtualMIDIOut() override { return {}; }
std::unique_ptr<IMIDIInOut> newVirtualMIDIInOut(ReceiveFunctor&& receiver) override { return {}; }
std::unique_ptr<IMIDIIn> newRealMIDIIn(const char* name, ReceiveFunctor&& receiver) override { return {}; }
std::unique_ptr<IMIDIOut> newRealMIDIOut(const char* name) override { return {}; }
std::unique_ptr<IMIDIInOut> newRealMIDIInOut(const char* name, ReceiveFunctor&& receiver) override { return {}; }
bool useMIDILock() const { return false; }
#endif
};
std::unique_ptr<IAudioVoiceEngine> NewAudioVoiceEngine(const char* uniqueName, const char* friendlyName) {
return std::make_unique<WASAPIAudioVoiceEngine>();
}
} // namespace boo
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