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/*
flext - C++ layer for Max/MSP and pd (pure data) externals
Copyright (c) 2001-2003 Thomas Grill (xovo@gmx.net)
For information on usage and redistribution, and for a DISCLAIMER OF ALL
WARRANTIES, see the file, "license.txt," in this distribution.
*/
#include "flext.h"
#include "flsndobj.h"
flext_sndobj::flext_sndobj():
inobjs(0),outobjs(0),
inobj(NULL),tmpobj(NULL),outobj(NULL),
smprt(0),blsz(0)
{}
bool flext_sndobj::Init()
{
bool ret = flext_dsp::Init();
inobjs = CntInSig();
outobjs = CntOutSig();
return ret;
}
void flext_sndobj::Exit()
{
ClearObjs();
flext_dsp::Exit();
}
void flext_sndobj::ClearObjs()
{
FreeObjs();
if(inobj) {
for(int i = 0; i < inobjs; ++i) delete inobj[i];
delete[] inobj; inobj = NULL;
}
if(tmpobj) {
for(int i = 0; i < inobjs; ++i) delete tmpobj[i];
delete[] tmpobj; tmpobj = NULL;
}
if(outobj) {
for(int i = 0; i < outobjs; ++i) delete outobj[i];
delete[] outobj; outobj = NULL;
}
}
void flext_sndobj::m_dsp(int n,t_sample *const *in,t_sample *const *out)
{
// called on every rebuild of the dsp chain
int i;
if(Blocksize() != blsz || Samplerate() != smprt) {
// block size or sample rate has changed... rebuild all objects
ClearObjs();
blsz = Blocksize();
smprt = Samplerate();
// set up sndobjs for inlets and outlets
if(inobjs) {
inobj = new Inlet *[inobjs];
tmpobj = new SndObj *[inobjs];
for(i = 0; i < inobjs; ++i) {
inobj[i] = new Inlet(in[i],blsz,smprt);
tmpobj[i] = new SndObj(NULL,blsz,smprt);
}
}
if(outobjs) {
outobj = new Outlet *[outobjs];
for(i = 0; i < outobjs; ++i) outobj[i] = new Outlet(out[i],blsz,smprt);
}
if(!NewObjs()) ClearObjs();
}
else {
// assign changed input/output vectors
for(i = 0; i < inobjs; ++i) inobj[i]->SetBuf(in[i]);
for(i = 0; i < outobjs; ++i) outobj[i]->SetBuf(out[i]);
}
}
void flext_sndobj::m_signal(int n,t_sample *const *in,t_sample *const *out)
{
for(int i = 0; i < inobjs; ++i) *tmpobj[i] << *inobj[i];
ProcessObjs();
}
flext_sndobj::Inlet::Inlet(const t_sample *b,int vecsz,float sr):
SndIO(1,sizeof(t_sample)*8,NULL,vecsz,sr),buf(b)
{}
short flext_sndobj::Inlet::Read()
{
if(!m_error) {
for(m_vecpos = 0; m_vecpos < m_samples; m_vecpos++)
m_output[m_vecpos] = buf[m_vecpos];
return 1;
}
else return 0;
}
short flext_sndobj::Inlet::Write() { return 0; }
flext_sndobj::Outlet::Outlet(t_sample *b,int vecsz,float sr):
SndIO(1,sizeof(t_sample)*8,NULL,vecsz,sr),buf(b)
{}
short flext_sndobj::Outlet::Read() { return 0; }
short flext_sndobj::Outlet::Write()
{
if(!m_error) {
if(m_IOobjs[0])
for(m_vecpos = 0; m_vecpos < m_samples; m_vecpos++)
buf[m_vecpos] = m_IOobjs[0]->Output(m_vecpos);
return 1;
}
else return 0;
}
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