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/*
* This is the Loris C++ Class Library, implementing analysis,
* manipulation, and synthesis of digitized sounds using the Reassigned
* Bandwidth-Enhanced Additive Sound Model.
*
* Loris is Copyright (c) 1999-2010 by Kelly Fitz and Lippold Haken
*
* 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
*
*
* lorisBpEnvelope_pi.C
*
* A component of the C-linkable procedural interface for Loris.
*
* Main components of this interface:
* - version identification symbols
* - type declarations
* - Analyzer configuration
* - LinearEnvelope (formerly BreakpointEnvelope) operations
* - PartialList operations
* - Partial operations
* - Breakpoint operations
* - sound modeling functions for preparing PartialLists
* - utility functions for manipulating PartialLists
* - notification and exception handlers (all exceptions must be caught and
* handled internally, clients can specify an exception handler and
* a notification function. The default one in Loris uses printf()).
*
* This file defines the procedural interface for the Loris
* BreakpointEnvelope class.
*
* Kelly Fitz, 10 Nov 2000
* loris@cerlsoundgroup.org
*
* http://www.cerlsoundgroup.org/Loris/
*
*/
#if HAVE_CONFIG_H
#include "config.h"
#endif
#include "loris.h"
#include "lorisException_pi.h"
#include "LinearEnvelope.h"
#include "Notifier.h"
using namespace Loris;
/* ---------------------------------------------------------------- */
/* LinearEnvelope object interface
/*
/* A LinearEnvelope represents a linear segment breakpoint
function with infinite extension at each end (that is, the
values past either end of the breakpoint function have the
values at the nearest end).
*/
/* ---------------------------------------------------------------- */
/* createLinearEnvelope
/*
/* Construct and return a new LinearEnvelope having no
breakpoints and an implicit value of 0. everywhere,
until the first breakpoint is inserted.
*/
extern "C"
LinearEnvelope * createLinearEnvelope( void )
{
try
{
debugger << "creating LinearEnvelope" << endl;
return new LinearEnvelope();
}
catch( Exception & ex )
{
std::string s("Loris exception in createLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
catch( std::exception & ex )
{
std::string s("std C++ exception in createLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
return NULL;
}
/* ---------------------------------------------------------------- */
/* copyLinearEnvelope
/*
/* Construct and return a new LinearEnvelope that is an
exact copy of the specified LinearEnvelopes, having
an identical set of breakpoints.
*/
extern "C"
LinearEnvelope * copyLinearEnvelope( const LinearEnvelope * ptr_this )
{
try
{
debugger << "copying LinearEnvelope" << endl;
return new LinearEnvelope( *ptr_this );
}
catch( Exception & ex )
{
std::string s("Loris exception in copyLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
catch( std::exception & ex )
{
std::string s("std C++ exception in copyLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
return NULL;
}
/* ---------------------------------------------------------------- */
/* destroyLinearEnvelope
/*
/* Destroy this LinearEnvelope.
*/
extern "C"
void destroyLinearEnvelope( LinearEnvelope * ptr_this )
{
try
{
ThrowIfNull((LinearEnvelope *) ptr_this);
debugger << "deleting LinearEnvelope" << endl;
delete ptr_this;
}
catch( Exception & ex )
{
std::string s("Loris exception in destroyLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
catch( std::exception & ex )
{
std::string s("std C++ exception in destroyLinearEnvelope(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
}
/* ---------------------------------------------------------------- */
/* linearEnvelope_insertBreakpoint
/*
/* Insert a breakpoint representing the specified (time, value)
pair into this LinearEnvelope. If there is already a
breakpoint at the specified time, it will be replaced with
the new breakpoint.
*/
extern "C"
void linearEnvelope_insertBreakpoint( LinearEnvelope * ptr_this,
double time, double val )
{
try
{
ThrowIfNull((LinearEnvelope *) ptr_this);
debugger << "inserting point (" << time << ", " << val
<< ") into LinearEnvelope" << endl;
ptr_this->insertBreakpoint(time, val);
}
catch( Exception & ex )
{
std::string s("Loris exception in linearEnvelope_insertBreakpoint(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
catch( std::exception & ex )
{
std::string s("std C++ exception in linearEnvelope_insertBreakpoint(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
}
/* ---------------------------------------------------------------- */
/* linearEnvelope_valueAt
/*
/* Return the interpolated value of this LinearEnvelope at the
specified time.
*/
extern "C"
double linearEnvelope_valueAt( const LinearEnvelope * ptr_this,
double time )
{
try
{
ThrowIfNull((LinearEnvelope *) ptr_this);
return ptr_this->valueAt(time);
}
catch( Exception & ex )
{
std::string s("Loris exception in linearEnvelope_valueAt(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
catch( std::exception & ex )
{
std::string s("std C++ exception in linearEnvelope_valueAt(): " );
s.append( ex.what() );
handleException( s.c_str() );
}
return 0;
}
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