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/*
noatun visualisation interface for winskin
Copyright (C) 2001 Martin Vogt
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation.
For more information look at the file COPYRIGHT in this package
*/
#include "winSkinVis.h"
#define __BANDS 75
#define __SPAHEIGHT 15
WinSkinVis::WinSkinVis(TQObject *parent, const char *name):
TQObject(parent,name),Visualization(50) {
m_currentPeaks=new float[__BANDS];
for(unsigned int i=0;i<__BANDS;i++)
m_currentPeaks[i]=0.0;
// If we can create our server-side object, visualize away
if (initServerObject())
{
start();
}
}
WinSkinVis::~WinSkinVis()
{
if (m_winSkinFFT != NULL) {
if (connected())
{
visualizationStack().remove(m_id);
m_winSkinFFT->stop();
delete m_winSkinFFT;
}
}
delete[] m_currentPeaks;
}
bool WinSkinVis::initServerObject()
{
// Create FFT on server
m_winSkinFFT = new Noatun::WinSkinFFT();
*m_winSkinFFT = Arts::DynamicCast(server()->createObject("Noatun::WinSkinFFT"));
if ( (*m_winSkinFFT).isNull() ) {
delete m_winSkinFFT;
m_winSkinFFT=NULL;
}
else
{
m_winSkinFFT->bandResolution(__BANDS);
m_winSkinFFT->start();
m_id=visualizationStack().insertBottom(*m_winSkinFFT, "WinSkin FFT");
}
return (m_winSkinFFT != NULL);
}
void WinSkinVis::timeout()
{
std::vector<float> *data(m_winSkinFFT->scope());
float *f=&data->front();
if (data->size())
scopeEvent(f, data->size());
delete data;
}
float* WinSkinVis::currentPeaks()
{
return m_currentPeaks;
}
void WinSkinVis::scopeEvent(float* bandPtr, unsigned int bands)
{
for (unsigned int i = 0;i < bands;i++) {
float value=bandPtr[i];
// if the peak is less we prefer the higher one
if (m_currentPeaks[i] < value)
m_currentPeaks[i] = value;
else
m_currentPeaks[i] = m_currentPeaks[i]-1.3;
if (m_currentPeaks[i] < 0.0)
m_currentPeaks[i] = 0.0;
if (m_currentPeaks[i] > __SPAHEIGHT)
m_currentPeaks[i]=__SPAHEIGHT;
}
emit(doRepaint());
}
#include "winSkinVis.moc"
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