Robin Davies
1530 lines
50 KiB
C++
1530 lines
50 KiB
C++
// Copyright (c) 2022 Robin Davies
|
|
//
|
|
// Permission is hereby granted, free of charge, to any person obtaining a copy of
|
|
// this software and associated documentation files (the "Software"), to deal in
|
|
// the Software without restriction, including without limitation the rights to
|
|
// use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
|
|
// the Software, and to permit persons to whom the Software is furnished to do so,
|
|
// subject to the following conditions:
|
|
//
|
|
// The above copyright notice and this permission notice shall be included in all
|
|
// copies or substantial portions of the Software.
|
|
//
|
|
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
|
|
// FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
|
|
// COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
|
|
// IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
|
|
// CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
|
|
#include "JackHost.hpp"
|
|
|
|
#include "Lv2Log.hpp"
|
|
|
|
#include "JackDriver.hpp"
|
|
#include "AlsaDriver.hpp"
|
|
|
|
|
|
using namespace pipedal;
|
|
|
|
#include "AudioConfig.hpp"
|
|
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <mutex>
|
|
#include <thread>
|
|
#include <semaphore.h>
|
|
#include "VuUpdate.hpp"
|
|
#include "CpuGovernor.hpp"
|
|
|
|
#include "RingBuffer.hpp"
|
|
#include "RingBufferReader.hpp"
|
|
|
|
#include "PiPedalException.hpp"
|
|
#include "pthread.h"
|
|
#include "sched.h"
|
|
#include <cmath>
|
|
#include <chrono>
|
|
#include <fstream>
|
|
#include "Lv2EventBufferWriter.hpp"
|
|
#include "InheritPriorityMutex.hpp"
|
|
|
|
#ifdef __linux__
|
|
#include <sched.h>
|
|
#include <sys/syscall.h>
|
|
#include <unistd.h>
|
|
#endif
|
|
|
|
#define JACK_SESSION_CALLBACKS 0
|
|
|
|
#include "AdminClient.hpp"
|
|
|
|
const double VU_UPDATE_RATE_S = 1.0 / 30;
|
|
const double OVERRUN_GRACE_PERIOD_S = 15;
|
|
using namespace pipedal;
|
|
|
|
const int MIDI_LV2_BUFFER_SIZE = 16 * 1024;
|
|
|
|
|
|
static void GetCpuFrequency(uint64_t*freqMin,uint64_t*freqMax)
|
|
{
|
|
uint64_t fMax = 0;
|
|
uint64_t fMin = UINT64_MAX;
|
|
char deviceName[128];
|
|
try {
|
|
for (int i = 0; true; ++i)
|
|
{
|
|
|
|
snprintf(deviceName,sizeof(deviceName),"/sys/devices/system/cpu/cpu%d/cpufreq/scaling_cur_freq",i);
|
|
std::ifstream f(deviceName);
|
|
if (!f)
|
|
{
|
|
break;
|
|
}
|
|
uint64_t freq;
|
|
f >> freq;
|
|
if (!f) break;
|
|
if (freq < fMin) fMin = freq;
|
|
if (freq > fMax) fMax = freq;
|
|
}
|
|
} catch (const std::exception &)
|
|
{
|
|
|
|
}
|
|
if (fMin == 0) fMax = 0;
|
|
*freqMin = fMin;
|
|
*freqMax = fMax;
|
|
}
|
|
static std::string GetGovernor()
|
|
{
|
|
return pipedal::GetCpuGovernor();
|
|
}
|
|
|
|
|
|
|
|
class JackHostImpl : public JackHost, private AudioDriverHost
|
|
{
|
|
private:
|
|
IHost *pHost = nullptr;
|
|
|
|
class Uris
|
|
{
|
|
public:
|
|
Uris(IHost *pHost)
|
|
{
|
|
atom_Blank = pHost->GetLv2Urid(LV2_ATOM__Blank);
|
|
atom_Path = pHost->GetLv2Urid(LV2_ATOM__Path);
|
|
atom_float = pHost->GetLv2Urid(LV2_ATOM__Float);
|
|
atom_Double = pHost->GetLv2Urid(LV2_ATOM__Double);
|
|
atom_Int = pHost->GetLv2Urid(LV2_ATOM__Int);
|
|
atom_Long = pHost->GetLv2Urid(LV2_ATOM__Long);
|
|
atom_Bool = pHost->GetLv2Urid(LV2_ATOM__Bool);
|
|
atom_String = pHost->GetLv2Urid(LV2_ATOM__String);
|
|
atom_Vector = pHost->GetLv2Urid(LV2_ATOM__Vector);
|
|
atom_Object = pHost->GetLv2Urid(LV2_ATOM__Object);
|
|
|
|
|
|
atom_Sequence = pHost->GetLv2Urid(LV2_ATOM__Sequence);
|
|
atom_Chunk = pHost->GetLv2Urid(LV2_ATOM__Chunk);
|
|
atom_URID = pHost->GetLv2Urid(LV2_ATOM__URID);
|
|
atom_eventTransfer = pHost->GetLv2Urid(LV2_ATOM__eventTransfer);
|
|
patch_Get = pHost->GetLv2Urid(LV2_PATCH__Get);
|
|
patch_Set = pHost->GetLv2Urid(LV2_PATCH__Set);
|
|
patch_Put = pHost->GetLv2Urid(LV2_PATCH__Put);
|
|
patch_body = pHost->GetLv2Urid(LV2_PATCH__body);
|
|
patch_subject = pHost->GetLv2Urid(LV2_PATCH__subject);
|
|
patch_property = pHost->GetLv2Urid(LV2_PATCH__property);
|
|
//patch_accept = pHost->GetLv2Urid(LV2_PATCH__accept);
|
|
patch_value = pHost->GetLv2Urid(LV2_PATCH__value);
|
|
unitsFrame = pHost->GetLv2Urid(LV2_UNITS__frame);
|
|
|
|
}
|
|
//LV2_URID patch_accept;
|
|
|
|
LV2_URID unitsFrame;
|
|
LV2_URID pluginUri;
|
|
LV2_URID atom_Blank;
|
|
LV2_URID atom_Bool;
|
|
LV2_URID atom_float;
|
|
LV2_URID atom_Double;
|
|
LV2_URID atom_Int;
|
|
LV2_URID atom_Long;
|
|
LV2_URID atom_String;
|
|
LV2_URID atom_Object;
|
|
LV2_URID atom_Vector;
|
|
LV2_URID atom_Path;
|
|
LV2_URID atom_Sequence;
|
|
LV2_URID atom_Chunk;
|
|
LV2_URID atom_URID;
|
|
LV2_URID atom_eventTransfer;
|
|
LV2_URID midi_Event;
|
|
LV2_URID patch_Get;
|
|
LV2_URID patch_Set;
|
|
LV2_URID patch_Put;
|
|
LV2_URID patch_body;
|
|
LV2_URID patch_subject;
|
|
LV2_URID patch_property;
|
|
LV2_URID patch_value;
|
|
LV2_URID param_uiState;
|
|
};
|
|
|
|
Uris uris;
|
|
|
|
|
|
|
|
AudioDriver*audioDriver = nullptr;
|
|
|
|
inherit_priority_recursive_mutex mutex;
|
|
int64_t overrunGracePeriodSamples = 0;
|
|
|
|
IJackHostCallbacks *pNotifyCallbacks = nullptr;
|
|
|
|
virtual void SetNotificationCallbacks(IJackHostCallbacks *pNotifyCallbacks)
|
|
{
|
|
this->pNotifyCallbacks = pNotifyCallbacks;
|
|
}
|
|
|
|
const size_t RING_BUFFER_SIZE = 64 * 1024;
|
|
|
|
RingBuffer<true, false> inputRingBuffer;
|
|
RingBuffer<false, true> outputRingBuffer;
|
|
|
|
RingBufferWriter<true,false> x;
|
|
|
|
RealtimeRingBufferReader realtimeReader;
|
|
RealtimeRingBufferWriter realtimeWriter;
|
|
HostRingBufferReader hostReader;
|
|
HostRingBufferWriter hostWriter;
|
|
|
|
JackChannelSelection channelSelection;
|
|
bool active = false;
|
|
|
|
std::shared_ptr<Lv2PedalBoard> currentPedalBoard;
|
|
std::vector<std::shared_ptr<Lv2PedalBoard>> activePedalBoards; // pedalboards that have been sent to the audio queue.
|
|
Lv2PedalBoard *realtimeActivePedalBoard = nullptr;
|
|
|
|
std::vector<uint8_t *> midiLv2Buffers;
|
|
|
|
uint32_t sampleRate = 0;
|
|
uint64_t currentSample = 0;
|
|
|
|
std::atomic<uint64_t> underruns = 0;
|
|
std::atomic<std::chrono::system_clock::time_point> lastUnderrunTime =
|
|
std::chrono::system_clock::from_time_t(0);
|
|
|
|
|
|
std::string GetAtomObjectType(uint8_t*pData)
|
|
{
|
|
LV2_Atom_Object *pAtom = (LV2_Atom_Object*)pData;
|
|
if (pAtom->atom.type != uris.atom_Object)
|
|
{
|
|
throw std::invalid_argument("Not an Lv2 Object");
|
|
}
|
|
return pHost->Lv2UriudToString(pAtom->body.otype);
|
|
|
|
}
|
|
|
|
void WriteAtom(json_writer &writer, LV2_Atom*pAtom);
|
|
|
|
std::string AtomToJson(uint8_t*pData)
|
|
{
|
|
std::stringstream s;
|
|
json_writer writer(s);
|
|
LV2_Atom *pAtom = (LV2_Atom*)pData;
|
|
|
|
WriteAtom(writer,pAtom);
|
|
return s.str();
|
|
}
|
|
|
|
virtual void OnUnderrun()
|
|
{
|
|
++this->underruns;
|
|
this->lastUnderrunTime = std::chrono::system_clock ::now();
|
|
}
|
|
|
|
|
|
virtual void Close()
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
if (!isOpen)
|
|
return;
|
|
|
|
isOpen = false;
|
|
StopReaderThread();
|
|
|
|
if (realtimeMonitorPortSubscriptions != nullptr)
|
|
{
|
|
delete realtimeMonitorPortSubscriptions;
|
|
realtimeMonitorPortSubscriptions = nullptr;
|
|
}
|
|
if (active)
|
|
{
|
|
audioDriver->Deactivate();
|
|
|
|
active = false;
|
|
}
|
|
|
|
audioDriver->Close();
|
|
|
|
// release any pdealboards owned by the process thread.
|
|
this->activePedalBoards.resize(0);
|
|
this->realtimeActivePedalBoard = nullptr;
|
|
|
|
// clean up any realtime buffers that may have been lost in transit.
|
|
// TODO: These should be lists, really. There may be multiple items in flight..
|
|
if (realtimeVuBuffers != nullptr)
|
|
{
|
|
delete realtimeVuBuffers;
|
|
realtimeVuBuffers = nullptr;
|
|
}
|
|
if (realtimeMonitorPortSubscriptions != nullptr)
|
|
{
|
|
delete realtimeMonitorPortSubscriptions;
|
|
realtimeVuBuffers = nullptr;
|
|
}
|
|
this->inputRingBuffer.reset();
|
|
this->outputRingBuffer.reset();
|
|
|
|
|
|
for (size_t i = 0; i < midiLv2Buffers.size(); ++i)
|
|
{
|
|
delete[] midiLv2Buffers[i];
|
|
}
|
|
midiLv2Buffers.resize(0);
|
|
|
|
}
|
|
|
|
void ZeroBuffer(float *buffer, size_t nframes)
|
|
{
|
|
for (size_t i = 0; i < nframes; ++i)
|
|
{
|
|
buffer[i] = 0;
|
|
}
|
|
}
|
|
Lv2EventBufferUrids eventBufferUrids;
|
|
|
|
void ZeroOutputBuffers(size_t nframes)
|
|
{
|
|
for (size_t i = 0; i < audioDriver->OutputBufferCount(); ++i)
|
|
{
|
|
float *out = (float *)audioDriver->GetOutputBuffer(i, nframes);
|
|
if (out)
|
|
{
|
|
ZeroBuffer(out, nframes);
|
|
}
|
|
}
|
|
}
|
|
RealtimeVuBuffers *realtimeVuBuffers = nullptr;
|
|
size_t vuSamplesPerUpdate = 0;
|
|
int64_t vuSamplesRemaining = 0;
|
|
|
|
void freeRealtimeVuConfiguration()
|
|
{
|
|
if (this->realtimeVuBuffers != nullptr)
|
|
{
|
|
realtimeWriter.FreeVuSubscriptions(this->realtimeVuBuffers);
|
|
|
|
this->realtimeVuBuffers = nullptr;
|
|
}
|
|
}
|
|
|
|
RealtimeMonitorPortSubscriptions *realtimeMonitorPortSubscriptions = nullptr;
|
|
|
|
void freeRealtimeMonitorPortSubscriptions()
|
|
{
|
|
if (this->realtimeMonitorPortSubscriptions != nullptr)
|
|
{
|
|
realtimeWriter.FreeMonitorPortSubscriptions(this->realtimeMonitorPortSubscriptions);
|
|
|
|
this->realtimeMonitorPortSubscriptions = nullptr;
|
|
}
|
|
}
|
|
|
|
void writeVu()
|
|
{
|
|
// throttling: we send one; but won't send another until the host thread
|
|
// acknowledges receipt.
|
|
|
|
if (!realtimeVuBuffers->waitingForAcknowledge)
|
|
{
|
|
auto pResult = realtimeVuBuffers->GetResult(currentSample);
|
|
|
|
this->realtimeWriter.SendVuUpdate(pResult);
|
|
realtimeVuBuffers->waitingForAcknowledge = true;
|
|
}
|
|
}
|
|
|
|
void processMonitorPortSubscriptions(uint32_t nframes)
|
|
{
|
|
for (size_t i = 0; i < this->realtimeMonitorPortSubscriptions->subscriptions.size(); ++i)
|
|
{
|
|
auto &portSubscription = realtimeMonitorPortSubscriptions->subscriptions[i];
|
|
|
|
portSubscription.samplesToNextCallback -= portSubscription.sampleRate;
|
|
if (portSubscription.samplesToNextCallback < 0)
|
|
{
|
|
portSubscription.samplesToNextCallback += portSubscription.sampleRate;
|
|
if (!portSubscription.waitingForAck)
|
|
{
|
|
float value = realtimeActivePedalBoard->GetControlOutputValue(
|
|
portSubscription.instanceIndex,
|
|
portSubscription.portIndex);
|
|
if (value != portSubscription.lastValue)
|
|
{
|
|
portSubscription.waitingForAck = true;
|
|
portSubscription.lastValue = value;
|
|
this->realtimeWriter.SendMonitorPortUpdate(
|
|
portSubscription.callbackPtr,
|
|
portSubscription.subscriptionHandle,
|
|
value);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
RealtimeParameterRequest *pParameterRequests = nullptr;
|
|
|
|
bool reEntered = false;
|
|
void ProcessInputCommands()
|
|
{
|
|
if (reEntered)
|
|
{
|
|
throw PiPedalStateException("Rentry of process command.");
|
|
}
|
|
reEntered = true;
|
|
|
|
while (true)
|
|
{
|
|
RingBufferCommand command;
|
|
size_t space = realtimeReader.readSpace();
|
|
if (space <= sizeof(RingBufferCommand)) // RingBufferCommand + at least 1 more byte for the body.
|
|
break;
|
|
if (!realtimeReader.read(&command))
|
|
{
|
|
break;
|
|
}
|
|
switch (command)
|
|
{
|
|
case RingBufferCommand::SetValue:
|
|
{
|
|
SetControlValueBody body;
|
|
realtimeReader.readComplete(&body);
|
|
this->realtimeActivePedalBoard->SetControlValue(body.effectIndex, body.controlIndex, body.value);
|
|
break;
|
|
}
|
|
case RingBufferCommand::ParameterRequest:
|
|
{
|
|
RealtimeParameterRequest *pRequest = nullptr;
|
|
realtimeReader.readComplete(&pRequest);
|
|
|
|
// link to the list of parameter requests.
|
|
pRequest->pNext = pParameterRequests;
|
|
pParameterRequests = pRequest;
|
|
break;
|
|
}
|
|
case RingBufferCommand::AckVuUpdate:
|
|
{
|
|
bool dummy;
|
|
realtimeReader.readComplete(&dummy);
|
|
if (this->realtimeVuBuffers)
|
|
{
|
|
this->realtimeVuBuffers->waitingForAcknowledge = false;
|
|
}
|
|
|
|
break;
|
|
}
|
|
case RingBufferCommand::AckMonitorPortUpdate:
|
|
{
|
|
int64_t subscriptionHandle = 0;
|
|
realtimeReader.readComplete(&subscriptionHandle);
|
|
if (this->realtimeMonitorPortSubscriptions != nullptr)
|
|
{
|
|
for (size_t i = 0; i < this->realtimeMonitorPortSubscriptions->subscriptions.size(); ++i)
|
|
{
|
|
if (this->realtimeMonitorPortSubscriptions->subscriptions[i].subscriptionHandle == subscriptionHandle)
|
|
{
|
|
this->realtimeMonitorPortSubscriptions->subscriptions[i].waitingForAck = false;
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case RingBufferCommand::SetMonitorPortSubscription:
|
|
{
|
|
RealtimeMonitorPortSubscriptions *pSubscriptions;
|
|
realtimeReader.readComplete(&pSubscriptions);
|
|
this->freeRealtimeMonitorPortSubscriptions();
|
|
this->realtimeMonitorPortSubscriptions = pSubscriptions;
|
|
break;
|
|
}
|
|
case RingBufferCommand::SetVuSubscriptions:
|
|
{
|
|
RealtimeVuBuffers *configuration;
|
|
realtimeReader.readComplete(&configuration);
|
|
this->freeRealtimeVuConfiguration();
|
|
this->realtimeVuBuffers = configuration;
|
|
if (this->realtimeVuBuffers != nullptr)
|
|
{
|
|
this->realtimeVuBuffers->waitingForAcknowledge = false;
|
|
}
|
|
vuSamplesRemaining = vuSamplesPerUpdate;
|
|
|
|
break;
|
|
}
|
|
case RingBufferCommand::SetBypass:
|
|
{
|
|
SetBypassBody body;
|
|
realtimeReader.readComplete(&body);
|
|
this->realtimeActivePedalBoard->SetBypass(body.effectIndex, body.enabled);
|
|
break;
|
|
}
|
|
case RingBufferCommand::ReplaceEffect:
|
|
{
|
|
ReplaceEffectBody body;
|
|
realtimeReader.readComplete(&body);
|
|
|
|
auto oldValue = this->realtimeActivePedalBoard;
|
|
this->realtimeActivePedalBoard = body.effect;
|
|
|
|
realtimeWriter.EffectReplaced(oldValue);
|
|
|
|
// invalidate the possibly no-good subscriptions. Model will update them shortly.
|
|
freeRealtimeVuConfiguration();
|
|
freeRealtimeMonitorPortSubscriptions();
|
|
break;
|
|
}
|
|
default:
|
|
throw PiPedalStateException("Unknown Ringbuffer command.");
|
|
}
|
|
}
|
|
reEntered = false;
|
|
}
|
|
|
|
void OnMidiValueChanged(uint64_t instanceId, int controlIndex, float value)
|
|
{
|
|
realtimeWriter.MidiValueChanged(instanceId, controlIndex, value);
|
|
}
|
|
static void fnMidiValueChanged(void *data, uint64_t instanceId, int controlIndex, float value)
|
|
{
|
|
((JackHostImpl *)data)->OnMidiValueChanged(instanceId, controlIndex, value);
|
|
}
|
|
void ProcessJackMidi()
|
|
{
|
|
Lv2EventBufferWriter eventBufferWriter(this->eventBufferUrids);
|
|
|
|
size_t midiInputBufferCount = audioDriver->MidiInputBufferCount();
|
|
|
|
audioDriver->FillMidiBuffers();
|
|
|
|
for (size_t i = 0; i < midiInputBufferCount; ++i)
|
|
{
|
|
|
|
void *portBuffer = audioDriver->GetMidiInputBuffer(i,0);
|
|
if (portBuffer)
|
|
{
|
|
uint8_t *lv2Buffer = this->midiLv2Buffers[i];
|
|
size_t n = audioDriver->GetMidiInputEventCount(portBuffer);
|
|
|
|
eventBufferWriter.Reset(lv2Buffer, MIDI_LV2_BUFFER_SIZE);
|
|
auto iterator = eventBufferWriter.begin();
|
|
|
|
for (size_t frame = 0; frame < n; ++frame)
|
|
{
|
|
MidiEvent event;
|
|
if (audioDriver->GetMidiInputEvent(&event,portBuffer,frame))
|
|
{
|
|
eventBufferWriter.writeMidiEvent(iterator, 0, event.size, event.buffer);
|
|
|
|
this->realtimeActivePedalBoard->OnMidiMessage(event.size, event.buffer, this, fnMidiValueChanged);
|
|
if (listenForMidiEvent)
|
|
{
|
|
if (event.size >= 3)
|
|
{
|
|
uint8_t cmd = (uint8_t)(event.buffer[0] & 0xF0);
|
|
bool isNote = cmd == 0x90;
|
|
bool isControl = cmd == 0xB0;
|
|
if (isNote || isControl)
|
|
{
|
|
realtimeWriter.OnMidiListen(isNote, event.buffer[1]);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#define RESET_XRUN_SAMPLES 22050ul // 1/2 a second-ish.
|
|
|
|
std::mutex audioStoppedMutex;
|
|
|
|
bool IsAudioActive()
|
|
{
|
|
std::lock_guard lock { audioStoppedMutex};
|
|
return this->active;
|
|
}
|
|
virtual void OnAudioStopped()
|
|
{
|
|
std::lock_guard lock { audioStoppedMutex};
|
|
this->active = false;
|
|
Lv2Log::info("Audio stopped.");
|
|
|
|
}
|
|
|
|
virtual void OnProcess(size_t nframes)
|
|
{
|
|
try
|
|
{
|
|
float *in, *out;
|
|
|
|
pParameterRequests = nullptr;
|
|
|
|
ProcessInputCommands();
|
|
|
|
bool processed = false;
|
|
|
|
Lv2PedalBoard *pedalBoard = this->realtimeActivePedalBoard;
|
|
if (pedalBoard != nullptr)
|
|
{
|
|
ProcessJackMidi();
|
|
float *inputBuffers[4];
|
|
float *outputBuffers[4];
|
|
bool buffersValid = true;
|
|
for (int i = 0; i < audioDriver->InputBufferCount(); ++i)
|
|
{
|
|
float *input = (float *)audioDriver->GetInputBuffer(i, nframes);
|
|
if (input == nullptr)
|
|
{
|
|
buffersValid = false;
|
|
break;
|
|
}
|
|
inputBuffers[i] = input;
|
|
}
|
|
inputBuffers[audioDriver->InputBufferCount()] = nullptr;
|
|
|
|
for (int i = 0; i < audioDriver->OutputBufferCount(); ++i)
|
|
{
|
|
float *output = audioDriver->GetOutputBuffer(i,nframes);
|
|
if (output == nullptr)
|
|
{
|
|
buffersValid = false;
|
|
break;
|
|
}
|
|
outputBuffers[i] = output;
|
|
}
|
|
outputBuffers[audioDriver->OutputBufferCount()] = nullptr;
|
|
|
|
if (buffersValid)
|
|
{
|
|
pedalBoard->ResetAtomBuffers();
|
|
pedalBoard->ProcessParameterRequests(pParameterRequests);
|
|
|
|
processed = pedalBoard->Run(inputBuffers, outputBuffers, (uint32_t)nframes,&realtimeWriter);
|
|
if (processed)
|
|
{
|
|
if (this->realtimeVuBuffers != nullptr)
|
|
{
|
|
pedalBoard->ComputeVus(this->realtimeVuBuffers, (uint32_t)nframes);
|
|
|
|
vuSamplesRemaining -= nframes;
|
|
if (vuSamplesRemaining <= 0)
|
|
{
|
|
writeVu();
|
|
vuSamplesRemaining += vuSamplesPerUpdate;
|
|
}
|
|
}
|
|
if (this->realtimeMonitorPortSubscriptions != nullptr)
|
|
{
|
|
processMonitorPortSubscriptions(nframes);
|
|
}
|
|
}
|
|
pedalBoard->GatherParameterRequests(pParameterRequests);
|
|
}
|
|
}
|
|
|
|
// in = jack_port_get_buffer(input_port, nframes);
|
|
// out = jack_port_get_buffer(output_port, nframes);
|
|
// memcpy(out, in,
|
|
// sizeof(jack_default_audio_sample_t) * nframes);
|
|
if (!processed)
|
|
{
|
|
ZeroOutputBuffers(nframes);
|
|
}
|
|
|
|
if (pParameterRequests != nullptr)
|
|
{
|
|
this->realtimeWriter.ParameterRequestComplete(pParameterRequests);
|
|
}
|
|
// provide a grace period for undderruns, while spinning up. (15 second-ish)
|
|
if (currentSample <= this->overrunGracePeriodSamples && currentSample + nframes > this->overrunGracePeriodSamples)
|
|
{
|
|
this->underruns = 0;
|
|
}
|
|
this->currentSample += nframes;
|
|
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
Lv2Log::error("Fatal error while processing jack audio. (%s)", e.what());
|
|
throw;
|
|
}
|
|
|
|
}
|
|
|
|
public:
|
|
JackHostImpl(IHost *pHost)
|
|
: inputRingBuffer(RING_BUFFER_SIZE),
|
|
outputRingBuffer(RING_BUFFER_SIZE),
|
|
realtimeReader(&this->inputRingBuffer),
|
|
realtimeWriter(&this->outputRingBuffer),
|
|
hostReader(&this->outputRingBuffer),
|
|
hostWriter(&this->inputRingBuffer),
|
|
eventBufferUrids(pHost),
|
|
pHost(pHost),
|
|
uris(pHost)
|
|
{
|
|
|
|
#if JACK_HOST
|
|
audioDriver = CreateJackDriver(this);
|
|
#endif
|
|
#if ALSA_HOST
|
|
audioDriver = CreateAlsaDriver(this);
|
|
#endif
|
|
|
|
}
|
|
virtual ~JackHostImpl()
|
|
{
|
|
Close();
|
|
CleanRestartThreads(true);
|
|
|
|
delete audioDriver;
|
|
|
|
}
|
|
|
|
virtual JackConfiguration GetServerConfiguration()
|
|
{
|
|
JackConfiguration result;
|
|
|
|
result.JackInitialize();
|
|
return result;
|
|
}
|
|
|
|
virtual uint32_t GetSampleRate()
|
|
{
|
|
return this->sampleRate;
|
|
}
|
|
|
|
void OnAudioComplete()
|
|
{
|
|
// there is actually no compelling circumstance in which this should ever happen.
|
|
|
|
Lv2Log::error("Audio processing terminated unexpectedly.");
|
|
realtimeWriter.AudioStopped();
|
|
}
|
|
std::vector<uint8_t> atomBuffer;
|
|
|
|
bool terminateThread;
|
|
void ThreadProc()
|
|
{
|
|
|
|
#if defined(__WIN32)
|
|
// bump thread prioriy two levels to
|
|
// ensure that the service thread doesn't
|
|
// get bogged down by UIwork. Doesn't have to be realtime, but it
|
|
// MUST run at higher priority than UI threads.
|
|
xxx; // TO DO.
|
|
#elif defined(__linux__)
|
|
int min = sched_get_priority_min(SCHED_RR);
|
|
int max = sched_get_priority_max(SCHED_RR);
|
|
|
|
struct sched_param param;
|
|
memset(¶m, 0, sizeof(param));
|
|
param.sched_priority = min;
|
|
|
|
int result = sched_setscheduler(0, SCHED_RR, ¶m);
|
|
if (result == 0)
|
|
{
|
|
Lv2Log::debug("Service thread priority successfully boosted.");
|
|
}
|
|
#else
|
|
xxx; // TODO!
|
|
#endif
|
|
int underrunMessagesGiven = 0;
|
|
try
|
|
{
|
|
|
|
struct timespec ts;
|
|
// ever 30 seconds, timeout check for and log any overruns.
|
|
int pollRateS = 30;
|
|
if (clock_gettime(CLOCK_REALTIME, &ts) == -1)
|
|
{
|
|
Lv2Log::error("clock_gettime failed!");
|
|
return;
|
|
}
|
|
ts.tv_sec += pollRateS;
|
|
uint64_t lastUnderrunCount = this->underruns;
|
|
|
|
while (true)
|
|
{
|
|
|
|
// wait for an event.
|
|
// 0 -> ready. -1: timed out. -2: closing.
|
|
|
|
int result = hostReader.wait(ts);
|
|
if (result == -2)
|
|
{
|
|
return;
|
|
}
|
|
else if (result == -1)
|
|
{
|
|
// timeout.
|
|
ts.tv_sec += pollRateS;
|
|
uint64_t underruns = this->underruns;
|
|
if (underruns != lastUnderrunCount)
|
|
{
|
|
if (underrunMessagesGiven < 60) // limit how much log file clutter we generate.
|
|
{
|
|
Lv2Log::info("Jack - Underrun count: %lu", (unsigned long)underruns);
|
|
lastUnderrunCount = underruns;
|
|
++underrunMessagesGiven;
|
|
}
|
|
}
|
|
clock_gettime(CLOCK_REALTIME, &ts);
|
|
ts.tv_sec += pollRateS;
|
|
}
|
|
else
|
|
{
|
|
while (true)
|
|
{
|
|
size_t space = hostReader.readSpace();
|
|
if (space <= sizeof(RingBufferCommand))
|
|
{
|
|
break;
|
|
}
|
|
RingBufferCommand command;
|
|
if (hostReader.read(&command))
|
|
{
|
|
if (command == RingBufferCommand::OnMidiListen)
|
|
{
|
|
uint16_t msg;
|
|
hostReader.read(&msg);
|
|
if (this->pNotifyCallbacks)
|
|
{
|
|
pNotifyCallbacks->OnNotifyMidiListen((msg & 0xFF00) != 0, (uint8_t)msg);
|
|
}
|
|
}
|
|
else if (command == RingBufferCommand::MidiValueChanged)
|
|
{
|
|
MidiValueChangedBody body;
|
|
hostReader.read(&body);
|
|
|
|
if (this->pNotifyCallbacks)
|
|
{
|
|
this->pNotifyCallbacks->OnNotifyMidiValueChanged(body.instanceId, body.controlIndex, body.value);
|
|
}
|
|
}
|
|
else if (command == RingBufferCommand::ParameterRequestComplete)
|
|
{
|
|
RealtimeParameterRequest *pRequest = nullptr;
|
|
hostReader.read(&pRequest);
|
|
|
|
std::shared_ptr<Lv2PedalBoard> currentpedalBoard;
|
|
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
currentPedalBoard = this->currentPedalBoard;
|
|
}
|
|
|
|
while (pRequest != nullptr)
|
|
{
|
|
auto pNext = pRequest->pNext;
|
|
if (pRequest->errorMessage == nullptr && pRequest->responseLength != 0)
|
|
{
|
|
IEffect *pEffect = currentPedalBoard->GetEffect(pRequest->instanceId);
|
|
if (pEffect == nullptr)
|
|
{
|
|
pRequest->errorMessage = "Effect no longer available.";
|
|
}
|
|
else
|
|
{
|
|
pRequest->jsonResponse = AtomToJson(pRequest->response);
|
|
}
|
|
}
|
|
pRequest->onJackRequestComplete(pRequest);
|
|
pRequest = pNext;
|
|
}
|
|
}
|
|
else if (command == RingBufferCommand::SendMonitorPortUpdate)
|
|
{
|
|
MonitorPortUpdate body;
|
|
hostReader.read(&body);
|
|
|
|
if (this->pNotifyCallbacks != nullptr)
|
|
{
|
|
this->pNotifyCallbacks->OnNotifyMonitorPort(body);
|
|
}
|
|
this->hostWriter.AckMonitorPortUpdate(body.subscriptionHandle); // please sir, can I have some more?
|
|
}
|
|
else if (command == RingBufferCommand::SendVuUpdate)
|
|
{
|
|
const std::vector<VuUpdate> *updates = nullptr;
|
|
hostReader.read(&updates);
|
|
|
|
if (this->pNotifyCallbacks)
|
|
{
|
|
this->pNotifyCallbacks->OnNotifyVusSubscription(*updates);
|
|
}
|
|
this->hostWriter.AckVuUpdate(); // please sir, can I have some more?
|
|
} else if (command == RingBufferCommand::AtomOutput)
|
|
{
|
|
uint64_t instanceId;
|
|
hostReader.read(&instanceId);
|
|
size_t extraBytes;
|
|
hostReader.read(&extraBytes);
|
|
if (atomBuffer.size() < extraBytes)
|
|
{
|
|
atomBuffer.resize(extraBytes);
|
|
}
|
|
hostReader.read(extraBytes,&(atomBuffer[0]));
|
|
|
|
|
|
IEffect *pEffect = currentPedalBoard->GetEffect(instanceId);
|
|
if (pEffect != nullptr &&this->pNotifyCallbacks && listenForAtomOutput)
|
|
{
|
|
std::string atomType = GetAtomObjectType(&atomBuffer[0]);
|
|
auto json = AtomToJson(&(atomBuffer[0]));
|
|
this->pNotifyCallbacks->OnNotifyAtomOutput(instanceId,atomType,json);
|
|
}
|
|
}
|
|
else if (command == RingBufferCommand::FreeVuSubscriptions)
|
|
{
|
|
RealtimeVuBuffers *config;
|
|
hostReader.read(&config);
|
|
delete config;
|
|
}
|
|
else if (command == RingBufferCommand::FreeMonitorPortSubscription)
|
|
{
|
|
RealtimeMonitorPortSubscriptions *pSubscriptions;
|
|
hostReader.read(&pSubscriptions);
|
|
delete pSubscriptions;
|
|
}
|
|
else if (command == RingBufferCommand::EffectReplaced)
|
|
{
|
|
EffectReplacedBody body;
|
|
hostReader.read(&body);
|
|
OnActivePedalBoardReleased(body.oldEffect);
|
|
}
|
|
else if (command == RingBufferCommand::AudioStopped)
|
|
{
|
|
AudioStoppedBody body;
|
|
hostReader.read(&body);
|
|
OnAudioComplete();
|
|
return;
|
|
}
|
|
else
|
|
{
|
|
throw PiPedalStateException("Unrecognized command received from audio thread.");
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
Lv2Log::error("Realtime response thread terminated abnormally. (%s)", e.what());
|
|
}
|
|
}
|
|
|
|
std::thread *readerThread = nullptr;
|
|
|
|
void StopReaderThread()
|
|
{
|
|
if (readerThread != nullptr)
|
|
{
|
|
this->terminateThread = true;
|
|
this->outputRingBuffer.close();
|
|
|
|
readerThread->join();
|
|
delete readerThread;
|
|
readerThread = nullptr;
|
|
}
|
|
}
|
|
void StartReaderThread()
|
|
{
|
|
terminateThread = false;
|
|
auto f = [this]()
|
|
{
|
|
this->ThreadProc();
|
|
};
|
|
|
|
this->readerThread = new std::thread(f);
|
|
}
|
|
|
|
bool isOpen = false;
|
|
|
|
virtual bool IsOpen() const
|
|
{
|
|
return isOpen;
|
|
}
|
|
|
|
uint8_t *AllocateRealtimeBuffer(size_t size)
|
|
{
|
|
uint8_t *result = new uint8_t[size];
|
|
// populate pages if required. We should have mlocked-ed alread, so they will stay.
|
|
for (size_t i = 0; i < size; i += 1024)
|
|
{
|
|
result[i] = 0;
|
|
}
|
|
return result;
|
|
}
|
|
|
|
|
|
virtual void Open(const JackServerSettings &jackServerSettings,const JackChannelSelection &channelSelection)
|
|
{
|
|
|
|
std::lock_guard guard(mutex);
|
|
if (channelSelection.GetInputAudioPorts().size() == 0
|
|
|| channelSelection.GetOutputAudioPorts().size() == 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
this->currentSample = 0;
|
|
this->underruns = 0;
|
|
|
|
if (isOpen)
|
|
{
|
|
throw PiPedalStateException("Already open.");
|
|
}
|
|
isOpen = true;
|
|
|
|
this->inputRingBuffer.reset();
|
|
this->outputRingBuffer.reset();
|
|
|
|
this->channelSelection = channelSelection;
|
|
|
|
StartReaderThread();
|
|
|
|
try {
|
|
|
|
audioDriver->Open(jackServerSettings,this->channelSelection);
|
|
|
|
this->sampleRate = audioDriver->GetSampleRate();
|
|
|
|
this->overrunGracePeriodSamples = (uint64_t)(((uint64_t)this->sampleRate)*OVERRUN_GRACE_PERIOD_S);
|
|
this->vuSamplesPerUpdate = (size_t)(sampleRate * VU_UPDATE_RATE_S);
|
|
|
|
|
|
midiLv2Buffers.resize(audioDriver->MidiInputBufferCount());
|
|
for (size_t i = 0; i < audioDriver->MidiInputBufferCount(); ++i)
|
|
{
|
|
midiLv2Buffers[i] = AllocateRealtimeBuffer(MIDI_LV2_BUFFER_SIZE);
|
|
}
|
|
|
|
|
|
active = true;
|
|
audioDriver->Activate();
|
|
Lv2Log::info("Audio started.");
|
|
|
|
}
|
|
catch (const std::exception &e)
|
|
{
|
|
Lv2Log::error(SS("Failed to start audio. " << e.what()));
|
|
Close();
|
|
active = false;
|
|
throw;
|
|
}
|
|
}
|
|
|
|
void OnActivePedalBoardReleased(Lv2PedalBoard *pPedalBoard)
|
|
{
|
|
if (pPedalBoard)
|
|
{
|
|
pPedalBoard->Deactivate();
|
|
std::lock_guard guard(mutex);
|
|
|
|
for (auto it = activePedalBoards.begin(); it != activePedalBoards.end(); ++it)
|
|
{
|
|
if ((*it).get() == pPedalBoard)
|
|
{
|
|
// erase it, relinquishing shared_ptr ownership, usually deleting the object.
|
|
activePedalBoards.erase(it);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual void SetPedalBoard(const std::shared_ptr<Lv2PedalBoard> &pedalBoard)
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
|
|
this->currentPedalBoard = pedalBoard;
|
|
if (active)
|
|
{
|
|
pedalBoard->Activate();
|
|
this->activePedalBoards.push_back(pedalBoard);
|
|
hostWriter.ReplaceEffect(pedalBoard.get());
|
|
}
|
|
}
|
|
|
|
virtual void SetBypass(uint64_t instanceId, bool enabled)
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
if (active && this->currentPedalBoard)
|
|
{
|
|
// use indices not instance ids, so we can just do a straight array index on the audio thread.
|
|
auto index = currentPedalBoard->GetIndexOfInstanceId(instanceId);
|
|
if (index >= 0)
|
|
{
|
|
hostWriter.SetBypass((uint32_t)index, enabled);
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual void SetPluginPreset(uint64_t instanceId, const std::vector<ControlValue> &values)
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
if (active && this->currentPedalBoard)
|
|
{
|
|
auto effectIndex = currentPedalBoard->GetIndexOfInstanceId(instanceId);
|
|
if (effectIndex != -1)
|
|
{
|
|
for (size_t i = 0; i < values.size(); ++i)
|
|
{
|
|
const ControlValue &value = values[i];
|
|
int controlIndex = this->currentPedalBoard->GetControlIndex(instanceId, value.key());
|
|
if (controlIndex != -1 && effectIndex != -1)
|
|
{
|
|
hostWriter.SetControlValue(effectIndex, controlIndex, value.value());
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
void SetControlValue(uint64_t instanceId, const std::string &symbol, float value)
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
if (active && this->currentPedalBoard)
|
|
{
|
|
// use indices not instance ids, so we can just do a straight array index on the audio thread.
|
|
int controlIndex = this->currentPedalBoard->GetControlIndex(instanceId, symbol);
|
|
auto effectIndex = currentPedalBoard->GetIndexOfInstanceId(instanceId);
|
|
|
|
if (controlIndex != -1 && effectIndex != -1)
|
|
{
|
|
hostWriter.SetControlValue(effectIndex, controlIndex, value);
|
|
}
|
|
}
|
|
}
|
|
|
|
virtual void SetVuSubscriptions(const std::vector<int64_t> &instanceIds)
|
|
{
|
|
std::lock_guard guard(mutex);
|
|
|
|
if (active && this->currentPedalBoard)
|
|
{
|
|
|
|
if (instanceIds.size() == 0)
|
|
{
|
|
this->hostWriter.SetVuSubscriptions(nullptr);
|
|
}
|
|
else
|
|
{
|
|
RealtimeVuBuffers *vuConfig = new RealtimeVuBuffers();
|
|
|
|
for (size_t i = 0; i < instanceIds.size(); ++i)
|
|
{
|
|
int64_t instanceId = instanceIds[i];
|
|
auto effect = this->currentPedalBoard->GetEffect(instanceId);
|
|
if (!effect)
|
|
{
|
|
throw PiPedalStateException("Effect not found.");
|
|
}
|
|
|
|
int index = this->currentPedalBoard->GetIndexOfInstanceId(instanceIds[i]);
|
|
vuConfig->enabledIndexes.push_back(index);
|
|
VuUpdate v;
|
|
v.instanceId_ = instanceId;
|
|
// Display mono VUs if a stereo device is being fed identical L/R inputs.
|
|
v.isStereoInput_ = effect->GetNumberOfInputAudioPorts() != 1 && effect->GetAudioInputBuffer(0) != effect->GetAudioInputBuffer(1);
|
|
v.isStereoOutput_ = effect->GetNumberOfOutputAudioPorts() != 1;
|
|
|
|
vuConfig->vuUpdateWorkingData.push_back(v);
|
|
vuConfig->vuUpdateResponseData.push_back(v);
|
|
}
|
|
|
|
this->hostWriter.SetVuSubscriptions(vuConfig);
|
|
}
|
|
}
|
|
}
|
|
|
|
RealtimeMonitorPortSubscription MakeRealtimeSubscription(const MonitorPortSubscription &subscription)
|
|
{
|
|
RealtimeMonitorPortSubscription result;
|
|
result.subscriptionHandle = subscription.subscriptionHandle;
|
|
result.instanceIndex = this->currentPedalBoard->GetIndexOfInstanceId(subscription.instanceid);
|
|
IEffect *pEffect = this->currentPedalBoard->GetEffect(subscription.instanceid);
|
|
|
|
result.portIndex = pEffect->GetControlIndex(subscription.key);
|
|
result.sampleRate = (int)(this->GetSampleRate() * subscription.updateInterval);
|
|
result.samplesToNextCallback = result.sampleRate;
|
|
PortMonitorCallback *ptr = new PortMonitorCallback(subscription.onUpdate);
|
|
result.callbackPtr = ptr;
|
|
return result;
|
|
}
|
|
virtual void SetMonitorPortSubscriptions(const std::vector<MonitorPortSubscription> &subscriptions)
|
|
{
|
|
if (!active)
|
|
return;
|
|
if (this->currentPedalBoard == nullptr)
|
|
return;
|
|
if (subscriptions.size() == 0)
|
|
{
|
|
this->hostWriter.SetMonitorPortSubscriptions(nullptr);
|
|
}
|
|
else
|
|
{
|
|
RealtimeMonitorPortSubscriptions *pSubscriptions = new RealtimeMonitorPortSubscriptions();
|
|
|
|
for (size_t i = 0; i < subscriptions.size(); ++i)
|
|
{
|
|
if (this->currentPedalBoard->GetEffect(subscriptions[i].instanceid) != nullptr)
|
|
{
|
|
pSubscriptions->subscriptions.push_back(
|
|
MakeRealtimeSubscription(subscriptions[i]));
|
|
}
|
|
}
|
|
this->hostWriter.SetMonitorPortSubscriptions(pSubscriptions);
|
|
}
|
|
}
|
|
|
|
private:
|
|
class RestartThread
|
|
{
|
|
JackHostImpl *this_;
|
|
JackServerSettings jackServerSettings;
|
|
std::function<void(bool success, const std::string &errorMessage)> onComplete;
|
|
std::atomic<bool> isComplete = false;
|
|
std::thread *pThread = nullptr;
|
|
|
|
public:
|
|
RestartThread(
|
|
JackHostImpl *host,
|
|
const JackServerSettings &jackServerSettings_,
|
|
std::function<void(bool success, const std::string &errorMessage)> onComplete_)
|
|
: this_(host),
|
|
jackServerSettings(jackServerSettings_),
|
|
onComplete(onComplete_)
|
|
{
|
|
}
|
|
~RestartThread()
|
|
{
|
|
pThread->join();
|
|
delete pThread;
|
|
}
|
|
bool IsComplete() const { return isComplete; }
|
|
|
|
void ThreadProc()
|
|
{
|
|
this_->restarting = true;
|
|
// this_->Close(); (JackServerConfiguration now does a service restart.)
|
|
try {
|
|
AdminClient client;
|
|
|
|
client.SetJackServerConfiguration(jackServerSettings);
|
|
|
|
|
|
//this_->Open(this_->channelSelection);
|
|
this_->restarting = false;
|
|
onComplete(true, "");
|
|
isComplete = true;
|
|
} catch (const std::exception &e)
|
|
{
|
|
onComplete(false,e.what());
|
|
this_->restarting = false;
|
|
isComplete = true;
|
|
}
|
|
}
|
|
static void ThreadProc_(RestartThread *this_)
|
|
{
|
|
this_->ThreadProc();
|
|
}
|
|
void Run()
|
|
{
|
|
pThread = new std::thread(ThreadProc_, this);
|
|
}
|
|
};
|
|
|
|
bool restarting = false;
|
|
std::vector<RestartThread *> restartThreads;
|
|
|
|
public:
|
|
inherit_priority_recursive_mutex restart_mutex;
|
|
virtual void UpdateServerConfiguration(const JackServerSettings &jackServerSettings,
|
|
std::function<void(bool success, const std::string &errorMessage)> onComplete)
|
|
{
|
|
std::lock_guard guard(restart_mutex);
|
|
RestartThread *pShutdown = new RestartThread(this, jackServerSettings, onComplete);
|
|
restartThreads.push_back(pShutdown);
|
|
pShutdown->Run();
|
|
}
|
|
void CleanRestartThreads(bool final)
|
|
{
|
|
std::lock_guard guard(restart_mutex);
|
|
for (size_t i = 0; i < restartThreads.size(); ++i)
|
|
{
|
|
if (final)
|
|
{
|
|
delete restartThreads[i];
|
|
}
|
|
else
|
|
{
|
|
if (restartThreads[i]->IsComplete())
|
|
{
|
|
delete restartThreads[i];
|
|
restartThreads.erase(restartThreads.begin() + i);
|
|
--i;
|
|
}
|
|
}
|
|
}
|
|
if (final)
|
|
{
|
|
restartThreads.clear();
|
|
}
|
|
}
|
|
|
|
virtual void getRealtimeParameter(RealtimeParameterRequest *pParameterRequest)
|
|
{
|
|
if (!active)
|
|
{
|
|
pParameterRequest->errorMessage = "Not active.";
|
|
pParameterRequest->onJackRequestComplete(pParameterRequest);
|
|
return;
|
|
}
|
|
this->hostWriter.ParameterRequest(pParameterRequest);
|
|
}
|
|
|
|
static int32_t GetRaspberryPiTemperature()
|
|
{
|
|
try
|
|
{
|
|
std::ifstream f("/sys/class/thermal/thermal_zone0/temp");
|
|
int32_t temp;
|
|
f >> temp;
|
|
return temp;
|
|
}
|
|
catch (std::exception &)
|
|
{
|
|
return -1000000;
|
|
}
|
|
}
|
|
|
|
virtual JackHostStatus getJackStatus()
|
|
{
|
|
CleanRestartThreads(false);
|
|
using namespace std::chrono;
|
|
using std::chrono::duration_cast;
|
|
using std::chrono::milliseconds;
|
|
|
|
std::lock_guard guard(mutex);
|
|
|
|
JackHostStatus result;
|
|
result.underruns_ = this->underruns;
|
|
auto dt = duration_cast<milliseconds>(std::chrono::system_clock ::now().time_since_epoch()).count() - duration_cast<milliseconds>(this->lastUnderrunTime.load().time_since_epoch()).count();
|
|
|
|
result.msSinceLastUnderrun_ = (uint64_t)dt;
|
|
|
|
result.temperaturemC_ = GetRaspberryPiTemperature();
|
|
|
|
result.active_ = IsAudioActive();
|
|
result.restarting_ = this->restarting;
|
|
|
|
if (this->audioDriver != nullptr)
|
|
{
|
|
result.cpuUsage_ = audioDriver->CpuUse();
|
|
}
|
|
GetCpuFrequency(&result.cpuFreqMax_,&result.cpuFreqMin_);
|
|
result.governor_ = GetGovernor();
|
|
|
|
return result;
|
|
}
|
|
volatile bool listenForMidiEvent = false;
|
|
volatile bool listenForAtomOutput = false;
|
|
|
|
virtual void SetListenForMidiEvent(bool listen)
|
|
{
|
|
this->listenForMidiEvent = listen;
|
|
}
|
|
virtual void SetListenForAtomOutput(bool listen)
|
|
{
|
|
this->listenForAtomOutput = listen;
|
|
}
|
|
};
|
|
|
|
static std::string UriToFieldName(const std::string&uri){
|
|
int pos;
|
|
for (pos = uri.length(); pos >= 0; --pos)
|
|
{
|
|
char c = uri[pos];
|
|
if (c == '#' || c == '/' || c == ':')
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
return uri.substr(pos+1);
|
|
}
|
|
|
|
void JackHostImpl::WriteAtom(json_writer &writer, LV2_Atom*pAtom)
|
|
{
|
|
if (pAtom->type == uris.atom_Blank)
|
|
{
|
|
writer.write_raw("null");
|
|
}
|
|
else if (pAtom->type == uris.atom_float)
|
|
{
|
|
writer.write(
|
|
((LV2_Atom_Float*)pAtom)->body
|
|
);
|
|
|
|
} else if (pAtom->type == uris.atom_Int)
|
|
{
|
|
writer.write(
|
|
((LV2_Atom_Int*)pAtom)->body
|
|
);
|
|
} else if (pAtom->type == uris.atom_Long)
|
|
{
|
|
writer.write(
|
|
((LV2_Atom_Long*)pAtom)->body
|
|
);
|
|
} else if (pAtom->type == uris.atom_Double)
|
|
{
|
|
writer.write(
|
|
((LV2_Atom_Double*)pAtom)->body
|
|
);
|
|
} else if (pAtom->type == uris.atom_Bool)
|
|
{
|
|
writer.write(
|
|
((LV2_Atom_Bool*)pAtom)->body
|
|
);
|
|
} else if (pAtom->type == uris.atom_String)
|
|
{
|
|
const char *p = (((const char*) pAtom) + sizeof(LV2_Atom_String));
|
|
writer.write(
|
|
p
|
|
);
|
|
} else if (pAtom->type == uris.atom_Vector)
|
|
{
|
|
LV2_Atom_Vector *pVector = (LV2_Atom_Vector*)pAtom;
|
|
writer.start_array();
|
|
{
|
|
size_t n = (pAtom->size-sizeof(pVector->body))/pVector->body.child_size;
|
|
char *pItems = ((char*)pAtom) + sizeof(LV2_Atom_Vector);
|
|
if (pVector->body.child_type == uris.atom_float)
|
|
{
|
|
float *p = (float*)pItems;
|
|
for (size_t i = 0; i < n; ++i)
|
|
{
|
|
if (i != 0) writer.write_raw(",");
|
|
writer.write(*p++);
|
|
}
|
|
} else if (pVector->body.child_type == uris.atom_Int)
|
|
{
|
|
int32_t *p = (int32_t*)pItems;
|
|
for (size_t i = 0; i < n; ++i)
|
|
{
|
|
if (i != 0) writer.write_raw(",");
|
|
writer.write(*p++);
|
|
}
|
|
} else if (pVector->body.child_type == uris.atom_Long)
|
|
{
|
|
int64_t *p = (int64_t*)pItems;
|
|
for (size_t i = 0; i < n; ++i)
|
|
{
|
|
if (i != 0) writer.write_raw(",");
|
|
writer.write(*p++);
|
|
}
|
|
} else if (pVector->body.child_type == uris.atom_Double)
|
|
{
|
|
double *p = (double*)pItems;
|
|
for (size_t i = 0; i < n; ++i)
|
|
{
|
|
if (i != 0) writer.write_raw(",");
|
|
writer.write(*p++);
|
|
}
|
|
} else if (pVector->body.child_type == uris.atom_Bool)
|
|
{
|
|
bool *p = (bool*)pItems;
|
|
for (size_t i = 0; i < n; ++i)
|
|
{
|
|
if (i != 0) writer.write_raw(",");
|
|
writer.write(*p++);
|
|
}
|
|
}
|
|
}
|
|
writer.end_array();
|
|
} else if (pAtom->type == uris.atom_Object)
|
|
{
|
|
writer.start_object();
|
|
|
|
const LV2_Atom_Object *obj = (const LV2_Atom_Object *)pAtom;
|
|
bool firstMember = true;
|
|
if (obj->body.id != 0)
|
|
{
|
|
std::string id = pHost->Lv2UriudToString(obj->body.id);
|
|
writer.write_member("id",id.c_str());
|
|
firstMember = false;
|
|
}
|
|
|
|
if (obj->body.otype != 0)
|
|
{
|
|
std::string type = pHost->Lv2UriudToString(obj->body.otype);
|
|
writer.write_member("lv2Type",type.c_str());
|
|
if (!firstMember)
|
|
{
|
|
writer.write_raw(",");
|
|
}
|
|
firstMember = false;
|
|
}
|
|
|
|
LV2_ATOM_OBJECT_FOREACH (obj, prop) {
|
|
if (!firstMember) {
|
|
writer.write_raw(",");
|
|
}
|
|
firstMember = false;
|
|
std::string key = pHost->Lv2UriudToString(prop->key);
|
|
key = UriToFieldName(key);
|
|
writer.write(key);
|
|
writer.write_raw(": ");
|
|
LV2_Atom *value = &(prop->value);
|
|
WriteAtom(writer,value);
|
|
}
|
|
writer.end_object();
|
|
|
|
}
|
|
|
|
}
|
|
|
|
JackHost *JackHost::CreateInstance(IHost *pHost)
|
|
{
|
|
return new JackHostImpl(pHost);
|
|
}
|
|
|
|
JSON_MAP_BEGIN(JackHostStatus)
|
|
JSON_MAP_REFERENCE(JackHostStatus, active)
|
|
JSON_MAP_REFERENCE(JackHostStatus, errorMessage)
|
|
JSON_MAP_REFERENCE(JackHostStatus, restarting)
|
|
JSON_MAP_REFERENCE(JackHostStatus, underruns)
|
|
JSON_MAP_REFERENCE(JackHostStatus, cpuUsage)
|
|
JSON_MAP_REFERENCE(JackHostStatus, msSinceLastUnderrun)
|
|
JSON_MAP_REFERENCE(JackHostStatus, temperaturemC)
|
|
JSON_MAP_REFERENCE(JackHostStatus, cpuFreqMin)
|
|
JSON_MAP_REFERENCE(JackHostStatus, cpuFreqMax)
|
|
JSON_MAP_REFERENCE(JackHostStatus, governor)
|
|
JSON_MAP_END()
|