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////////////////////////////////////////////////////////////////////////
// This file is part of the SndObj library
//
// 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; either version 2 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
// Copyright (c)Victor Lazzarini, 1997-2004
// See License.txt for a disclaimer of all warranties
// and licensing information
#include "PVMorph.h"
PVMorph::PVMorph(){
m_offset2 = 0.f;
m_interpobj2 = 0;
AddMsg("frequency morph", 41);
AddMsg("amplitude morph", 41);
}
PVMorph::PVMorph(float morphfr, float morpha, SndObj* input1, SndObj* input2,
SndObj* inmorphfr, SndObj* inmorpha, int vecsize, float sr)
:SpecInterp(morphfr, input1, input2, inmorphfr, vecsize, sr)
{
m_offset2 = morpha;
m_interpobj2 = inmorpha;
AddMsg("frequency morph", 41);
AddMsg("amplitude morph", 41);
}
PVMorph::~PVMorph(){
}
int
PVMorph::Connect(char* mess, void* input){
switch(FindMsg(mess)){
case 41:
SetFreqMorph(m_offset, (SndObj*) input);
return 1;
case 42:
SetAmpMorph(m_offset2, (SndObj*) input);
return 1;
default:
return SpecInterp::Connect(mess, input);
}
}
int
PVMorph::Set(char* mess, float value){
switch(FindMsg(mess)){
case 41:
SetFreqMorph(value, m_interpobj);
return 1;
case 42:
SetAmpMorph(value, m_interpobj2);
return 1;
default:
return SpecInterp::Set(mess, value);
}
}
short
PVMorph::DoProcess(){
if(!m_error){
if(m_input && m_input2){
float morphfr,fr1, fr2;
double ratio;
float morpha, amp1, amp2;
morphfr = m_offset + (m_interpobj ? m_interpobj->Output(0) : 0);
morpha = m_offset2 + (m_interpobj2 ? m_interpobj2->Output(0) : 0);
morpha = morpha > 1 ? 1 : (morpha < 0 ? 0 : morpha);
morphfr = morphfr > 1 ? 1 : (morphfr < 0 ? 0 : morphfr);
for(m_vecpos = 2; m_vecpos < m_vecsize; m_vecpos+=2) {
if(m_enable) {
// interpolate amps
amp1 =m_input->Output(m_vecpos);
amp2 =m_input2->Output(m_vecpos);
m_output[m_vecpos] = amp1 + (amp2-amp1)*morpha;
// interpolate frs
fr1 = m_input->Output(m_vecpos+1);
fr2 = m_input2->Output(m_vecpos+1);
ratio = fr1 ? fr2/fr1 : HUGE_VAL;
ratio = ratio > 0 ? ratio : -ratio;
m_output[m_vecpos+1] = fr1 * pow((double)ratio,
(double)morphfr);
// fudge against NaN-type result
if(!m_output[m_vecpos+1])
m_output[m_vecpos+1] = (m_vecpos/2)*m_sr/m_vecsize;
}
else
m_output[0] = m_output[1] =
m_output[m_vecpos+1] = m_output[m_vecpos] = 0.f;
}
amp1 =m_input->Output(0);
amp2 =m_input2->Output(0);
m_output[m_vecpos] = amp1 + (amp2-amp1)*morpha;
amp1 =m_input->Output(1);
amp2 =m_input2->Output(1);
m_output[m_vecpos] = amp1 + (amp2-amp1)*morpha;
return 1;
} else {
m_error = 3;
return 0;
}
}
else return 0;
}
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