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Diffstat (limited to 'sndobj/SndObj.cpp')
| -rw-r--r-- | sndobj/SndObj.cpp | 254 |
1 files changed, 254 insertions, 0 deletions
diff --git a/sndobj/SndObj.cpp b/sndobj/SndObj.cpp new file mode 100644 index 0000000..cc02494 --- /dev/null +++ b/sndobj/SndObj.cpp @@ -0,0 +1,254 @@ + +//////////////////////////////////////////////////////////////////////// +// 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 + +/////////////////////////////////////// +// SndObj Library Version 2 +// SndObj class +// a very basic model for all derived classes +// +////////////////////////////////////// +#include "SndObj.h" +#include "SndIO.h" + +SndObj::SndObj(){ + m_output = NULL; + SetVectorSize(DEF_VECSIZE); + m_input = 0; + m_sr = DEF_SR; + m_error =0; + for(m_vecpos = 0; m_vecpos < m_vecsize; m_vecpos++) + m_output[m_vecpos]= 0.f; + m_msgtable = new msg_link; + m_msgtable->previous = 0; + AddMsg("SR", 1); + AddMsg("vector size", 2); + AddMsg("input", 3); + Enable(); + +} + +SndObj::SndObj(SndObj* input, int vecsize, float sr){ + m_output = NULL; + SetVectorSize(vecsize); + m_input = input; + m_sr = sr; + m_error = 0; + for(m_vecpos = 0; m_vecpos < m_vecsize; m_vecpos++) m_output[m_vecpos]= 0.f; + + m_msgtable = new msg_link; + m_msgtable->previous = 0; + AddMsg("SR", 1); + AddMsg("vector size", 2); + AddMsg("input", 3); + Enable(); + +} + + +SndObj::SndObj(SndObj& obj){ + m_output = NULL; + SetVectorSize(obj.GetVectorSize()); + SetSr(obj.GetSr()); + + for(int n=0; n<m_vecsize;n++)m_output[n]=obj.Output(n); + m_input = obj.GetInput(); + m_error =0; + + m_msgtable = new msg_link; + m_msgtable->previous = 0; + AddMsg("SR", 1); + AddMsg("vector size", 2); + AddMsg("input", 3); + Enable(); + +} + + +SndObj::~SndObj(){ + + delete[] m_output; + + msg_link *todestroy = m_msgtable; + while(m_msgtable->previous){ + m_msgtable = todestroy->previous; + delete todestroy; + todestroy = m_msgtable; + } + delete m_msgtable; + +} + +void +SndObj::GetMsgList(string* list){ + msg_link* tmp = m_msgtable; + while(tmp->previous){ + list->append(tmp->msg); + list->append("\n"); + tmp = tmp->previous; + } +} + + +void +SndObj::AddMsg(const char* mess, int ID){ + + msg_link* newlink = new msg_link; + msg_link* tmp = m_msgtable; + newlink->msg = mess; + newlink->ID = ID; + m_msgtable = newlink; + m_msgtable->previous = tmp; +} + +int +SndObj::Connect(char* mess, void *input){ + + switch (FindMsg(mess)){ + + case 3: + m_input = (SndObj *) input; + return 1; + + default: + return 0; + + } +} + +int +SndObj::Set(char* mess, float value){ + + switch (FindMsg(mess)){ + + case 1: + SetSr(value); + return 1; + + case 2: + SetVectorSize((int) value); + return 1; + + default: + return 0; + + } + + +} + + +void +SndObj::SetVectorSize(int vecsize){ + if(m_output) delete[] m_output; + if(!(m_output = new float[vecsize])){ + m_error = 1; +#ifdef DEBUG + cout << ErrorMessage(); +#endif + m_vecsize = m_vecsize_max = 0; + return; + } + m_vecsize = vecsize; + m_vecsize_max = vecsize; + m_altvecpos = m_vecpos = 0; +} + +short +SndObj::DoProcess(){ + + if(!m_error){ + if(m_input){ + for(m_vecpos = 0; m_vecpos < m_vecsize; m_vecpos++) { + if(m_enable) m_output[m_vecpos] = m_input->Output(m_vecpos); + else m_output[m_vecpos] = 0.f; + } + return 1; + } else { + return 0; + } + } + else return 0; +} + +void +SndObj::operator>>(SndIO& out){ + out.SetOutput(1, this); + out.Write(); +} + +void +SndObj::operator<<(SndIO& in){ + in.Read(); + for(int n=0;n<m_vecsize;n++) m_output[n]=in.Output(n,1); +} + + +char* SndObj::ErrorMessage(){ + + char* message; + + switch(m_error){ + + case 0: + message = "No error\n"; + break; + + case 1: + message = "Failed to allocate vector memory\n"; + break; + + case 3: + message = "DoProcess() failed: no input object \n"; + break; + + default: + message = "Undefined error\n"; + break; + + } + + return message; + +} + +const char* SndObj::CErrorMessage(){ + + switch(m_error){ + + case 0: + return "No error\n"; + break; + + case 1: + return "Failed to allocate vector memory\n"; + break; + + case 3: + return "DoProcess() failed: no input object \n"; + break; + + default: + return "Undefined error\n"; + + } + +} |