pair<double, float> Param::findEndTimeAndValue() const
{
auto ctx = getContext();
lock_guard<mutex> lock( ctx->getMutex() );
if( mEvents.empty() )
return make_pair( ctx->getNumProcessedSeconds(), mValue.load() );
else {
const EventRef &event = mEvents.back();
return make_pair( event->mTimeEnd, event->mValueEnd );
}
}
float Param::findDuration() const
{
auto ctx = getContext();
lock_guard<mutex> lock( ctx->getMutex() );
if( mEvents.empty() )
return 0;
else {
const EventRef &event = mEvents.back();
return event->mTimeEnd - (float)ctx->getNumProcessedSeconds();
}
}
bool Param::eval()
{
if( mProcessor ) {
mProcessor->pullInputs( &mInternalBuffer );
mValue = mInternalBuffer[mInternalBuffer.getNumFrames() - 1];
return true;
}
else {
auto ctx = getContext();
return eval( (float)ctx->getNumProcessedSeconds(), mInternalBuffer.getData(), mInternalBuffer.getSize(), ctx->getSampleRate() );
}
}
EventRef Param::applyRamp( float valueBegin, float valueEnd, float rampSeconds, const Options &options )
{
initInternalBuffer();
auto ctx = getContext();
float timeBegin = (float)ctx->getNumProcessedSeconds() + options.getDelay();
float timeEnd = timeBegin + rampSeconds;
EventRef event( new Event( timeBegin, timeEnd, valueBegin, valueEnd, options.getRampFn() ) );
lock_guard<mutex> lock( ctx->getMutex() );
resetImpl();
mEvents.push_back( event );
return event;
}
EventRef Param::applyRamp( float valueEnd, double rampSeconds, const Options &options )
{
initInternalBuffer();
auto ctx = getContext();
double timeBegin = ( options.getBeginTime() >= 0 ? options.getBeginTime() : ctx->getNumProcessedSeconds() + options.getDelay() );
double timeEnd = timeBegin + rampSeconds;
EventRef event( new Event( timeBegin, timeEnd, mValue, valueEnd, true, options.getRampFn() ) );
if( ! options.getLabel().empty() )
event->mLabel = options.getLabel();
lock_guard<mutex> lock( ctx->getMutex() );
removeEventsAt( timeBegin );
if( mProcessor )
mProcessor.reset();
mEvents.push_back( event );
return event;
}
