sam/sfizz
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

Background work when idle

Browse source
This commit is contained in:
Jean Pierre Cimalando 2021-03-18 02:17:06 +01:00
parent 520ae553f0
commit 0a63256b65
2 changed files with 43 additions and 37 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

75
plugins/vst/SfizzVstProcessor.cpp
View file

@ -37,7 +37,6 @@ static const char* kRingIdOsc = "Osc";
static const char* kMsgIdSetNumVoices = "SetNumVoices";
static const char* kMsgIdSetOversampling = "SetOversampling";
static const char* kMsgIdSetPreloadSize = "SetPreloadSize";
static const char* kMsgIdCheckShouldReload = "CheckShouldReload";
static const char* kMsgIdNotifyPlayState = "NotifyPlayState";
static const char* kMsgIdReceiveMessage = "ReceiveMessage";
static const char* kMsgIdNoteEvents = "NoteEvents";
@ -204,7 +203,6 @@ tresult PLUGIN_API SfizzVstProcessor::setActive(TBool state)
synth->setSampleRate(processSetup.sampleRate);
synth->setSamplesPerBlock(processSetup.maxSamplesPerBlock);
_fileChangePeriod = static_cast<uint32>(1.0 * processSetup.sampleRate);
_playStateChangePeriod = static_cast<uint32>(50e-3 * processSetup.sampleRate);
startBackgroundWork();
@ -271,13 +269,6 @@ tresult PLUGIN_API SfizzVstProcessor::process(Vst::ProcessData& data)
synth.renderBlock(outputs, numFrames, numChannels);
_fileChangeCounter += numFrames;
if (_fileChangeCounter > _fileChangePeriod) {
_fileChangeCounter %= _fileChangePeriod;
if (writeWorkerMessage(kMsgIdCheckShouldReload, nullptr, 0))
_semaToWorker.post();
}
_playStateChangeCounter += numFrames;
if (_playStateChangeCounter > _playStateChangePeriod) {
_playStateChangeCounter %= _playStateChangePeriod;
@ -640,19 +631,28 @@ void SfizzVstProcessor::loadSfzFileOrDefault(sfz::Sfizz& synth, const std::strin
void SfizzVstProcessor::doBackgroundWork()
{
using Clock = std::chrono::steady_clock;
bool haveDoneIdleWork = false;
Clock::time_point lastIdleWorkTime;
for (;;) {
_semaToWorker.wait();
bool isNotified = _semaToWorker.timed_wait(1000);
if (!_workRunning)
break;
RTMessagePtr msg = readWorkerMessage();
if (!msg) {
fprintf(stderr, "[Sfizz] message synchronization error in worker\n");
std::abort();
}
const char* id = nullptr;
RTMessagePtr msg;
const char* id = msg->type;
if (isNotified) {
msg = readWorkerMessage();
if (!msg) {
fprintf(stderr, "[Sfizz] message synchronization error in worker\n");
std::abort();
}
id = msg->type;
}
if (id == kMsgIdSetNumVoices) {
int32 value = *msg->payload<int32>();
@ -669,23 +669,6 @@ void SfizzVstProcessor::doBackgroundWork()
std::lock_guard<SpinMutex> lock(_processMutex);
_synth->setPreloadSize(value);
}
else if (id == kMsgIdCheckShouldReload) {
if (_synth->shouldReloadFile()) {
fprintf(stderr, "[Sfizz] sfz file has changed, reloading\n");
std::lock_guard<SpinMutex> lock(_processMutex);
loadSfzFileOrDefault(*_synth, _state.sfzFile);
Steinberg::OPtr<Vst::IMessage> reply { allocateMessage() };
reply->setMessageID("LoadedSfz");
reply->getAttributes()->setBinary("File", _state.sfzFile.data(), _state.sfzFile.size());
sendMessage(reply);
}
else if (_synth->shouldReloadScala()) {
fprintf(stderr, "[Sfizz] scala file has changed, reloading\n");
std::lock_guard<SpinMutex> lock(_processMutex);
_synth->loadScalaFile(_state.scalaFile);
}
}
else if (id == kMsgIdNotifyPlayState) {
SfizzPlayState playState = *msg->payload<SfizzPlayState>();
Steinberg::OPtr<Vst::IMessage> notification { allocateMessage() };
@ -705,6 +688,32 @@ void SfizzVstProcessor::doBackgroundWork()
notification->getAttributes()->setBinary("Events", msg->payload<uint8_t>(), msg->size);
sendMessage(notification);
}
Clock::time_point currentTime = Clock::now();
if (!haveDoneIdleWork || currentTime - lastIdleWorkTime > std::chrono::seconds(1)) {
doBackgroundIdle();
haveDoneIdleWork = true;
lastIdleWorkTime = currentTime;
}
}
}
void SfizzVstProcessor::doBackgroundIdle()
{
if (_synth->shouldReloadFile()) {
fprintf(stderr, "[Sfizz] sfz file has changed, reloading\n");
std::lock_guard<SpinMutex> lock(_processMutex);
loadSfzFileOrDefault(*_synth, _state.sfzFile);
Steinberg::OPtr<Vst::IMessage> reply { allocateMessage() };
reply->setMessageID("LoadedSfz");
reply->getAttributes()->setBinary("File", _state.sfzFile.data(), _state.sfzFile.size());
sendMessage(reply);
}
if (_synth->shouldReloadScala()) {
fprintf(stderr, "[Sfizz] scala file has changed, reloading\n");
std::lock_guard<SpinMutex> lock(_processMutex);
_synth->loadScalaFile(_state.scalaFile);
}
}

5
plugins/vst/SfizzVstProcessor.h
View file

@ -72,10 +72,6 @@ private:
Ring_Buffer _fifoMessageFromUi;
SpinMutex _processMutex;
// file modification periodic checker
uint32 _fileChangeCounter = 0;
uint32 _fileChangePeriod = 0;
// state notification periodic timer
uint32 _playStateChangeCounter = 0;
uint32 _playStateChangePeriod = 0;
@ -99,6 +95,7 @@ private:
// worker
void doBackgroundWork();
void doBackgroundIdle();
void startBackgroundWork();
void stopBackgroundWork();
// writer