/usr/include/CLAM/LadspaProcessingExporter.hxx is in libclam-dev 1.4.0-6.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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* Copyright (c) 2004 MUSIC TECHNOLOGY GROUP (MTG)
* UNIVERSITAT POMPEU FABRA
*
*
* 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
*
*/
#ifndef LadspaProcessingExporter_hxx
#define LadspaProcessingExporter_hxx
#include "Audio.hxx"
#include "AudioOutPort.hxx"
#include "AudioInPort.hxx"
#include "OutControl.hxx"
#include "Processing.hxx"
#include "ProcessingFactory.hxx"
#include "LadspaLibrary.hxx"
namespace CLAM
{
namespace Hidden
{
class ProcessingClass2LadspaBase
{
std::vector<LADSPA_Data *> _portBuffers;
LADSPA_Data ** _outportBuffers;
LADSPA_Data ** _inportBuffers;
LADSPA_Data ** _incontrolBuffers;
LADSPA_Data ** _outcontrolBuffers;
std::vector<AudioOutPort*> mWrappersList;
unsigned _nInPorts;
unsigned _nOutPorts;
unsigned _nInControls;
unsigned _nOutControls;
private:
Processing * _proc;
public:
// Ladspa entry points
// Instantiate
ProcessingClass2LadspaBase(CLAM::Processing * processing)
: _proc(0)
{
SetProcessing(processing);
}
ProcessingClass2LadspaBase(const std::string & className)
: _proc(0)
{
SetProcessing(ProcessingFactory::GetInstance().Create(className));
}
void Instantiate()
{
_portBuffers.resize(NPorts());
_incontrolBuffers = &(_portBuffers[0]);
_outcontrolBuffers = _incontrolBuffers + _nInControls;
_inportBuffers = _outcontrolBuffers + _nOutControls;
_outportBuffers = _inportBuffers + _nInPorts;
mWrappersList.resize(_nInPorts);
for (unsigned i=0; i<mWrappersList.size(); i++)
{
mWrappersList[i] = new AudioOutPort("out", 0 );
mWrappersList[i]->ConnectToIn( _proc->GetInPort(i) );
}
}
void Activate()
{
_proc->Start();
}
void ConnectPort(unsigned long port, LADSPA_Data * data)
{
_portBuffers[port] = data;
}
void Run(unsigned long sampleCount)
{
DoControls();
SetPortSizes(sampleCount);
DoProc(sampleCount);
}
void Deactivate()
{
_proc->Stop();
}
// CleanUp
~ProcessingClass2LadspaBase()
{
for (unsigned i=0; i<mWrappersList.size(); i++)
delete mWrappersList[i];
SetProcessing(0);
}
private:
void DoProc(unsigned long nSamples);
void DoControls();
void SetPortSizes(int size);
// Pre instantiation interface
public:
LADSPA_Descriptor * CreateDescriptor(unsigned long id,
const std::string & maker, const std::string & copyright);
private:
void SetPortsAndControls(LADSPA_Descriptor *& descriptor);
// Helper shortcuts
private:
void SetProcessing(Processing * processing)
{
if (_proc) delete _proc;
_proc = processing;
_nInPorts = _proc?_proc->GetNInPorts():0;
_nOutPorts = _proc?_proc->GetNOutPorts():0;
_nInControls = _proc?_proc->GetNInControls():0;
_nOutControls = _proc?_proc->GetNOutControls():0;
}
const char * GetInControlName(int id) const;
const char * GetOutControlName(int id) const;
const char * GetInPortName(int id) const;
const char * GetOutPortName(int id) const;
unsigned NPorts() const
{
return _nInPorts + _nOutPorts + _nInControls + _nOutControls;
}
};
}
template <typename ProcessingType>
class LadspaProcessingExporter
{
public:
LadspaProcessingExporter(LadspaLibrary & library, unsigned long id,
const std::string & maker, const std::string & copyright)
{
Hidden::ProcessingClass2LadspaBase adapter(new ProcessingType);
LADSPA_Descriptor * descriptor = adapter.CreateDescriptor(id,maker,copyright);
library.AddPluginType(descriptor);
}
};
}
#endif//LadspaProcessingExporter_hxx
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