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//=============================================================================
// MusE
// Linux Music Editor
// $Id:$
//
// Copyright (C) 2006 by Werner Schweer and others
//
// This program is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License version 2.
//
// 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., 675 Mass Ave, Cambridge, MA 02139, USA.
//=============================================================================
#include "globaldefs.h"
#include "auxplugin.h"
#include "gconfig.h"
AuxPlugin* auxPlugin;
//---------------------------------------------------------
// AuxPlugin
//---------------------------------------------------------
AuxPlugin::AuxPlugin()
: Plugin(0)
{
}
//---------------------------------------------------------
// range
//---------------------------------------------------------
void AuxPlugin::range(int idx, double* min, double* max) const
{
switch(idx) {
case 0: // volume
*min = pow(10.0f, config.minSlider * 0.05f);
*max = pow(10.0f, config.maxSlider * 0.05f);
break;
case 1: // pan
*min = -1.0;
*max = 1.0;
break;
default:
printf("AuxPlugin::bad index\n");
break;
}
}
//---------------------------------------------------------
// createPIF
//---------------------------------------------------------
PluginIF* AuxPlugin::createPIF(PluginI* pi)
{
AuxPluginIF* pif = new AuxPluginIF(pi);
pif->init(pi->plugin());
return pif;
}
//---------------------------------------------------------
// isLog
//---------------------------------------------------------
bool AuxPlugin::isLog(int idx) const
{
return idx == 0 ? true : false;
}
//---------------------------------------------------------
// isBool
//---------------------------------------------------------
bool AuxPlugin::isBool(int) const
{
return false;
}
//---------------------------------------------------------
// isInt
//---------------------------------------------------------
bool AuxPlugin::isInt(int) const
{
return false;
}
//---------------------------------------------------------
// defaultValue
//---------------------------------------------------------
double AuxPlugin::defaultValue(int idx) const
{
return idx == 0 ? -70.0 : 0.0;
}
//---------------------------------------------------------
// AuxPluginIF
//---------------------------------------------------------
AuxPluginIF::AuxPluginIF(PluginI* pi)
: PluginIF(pi)
{
for (int i = 0; i < MAX_CHANNELS; ++i)
posix_memalign((void**)(_buffer + i), 16, sizeof(float) * segmentSize);
}
//---------------------------------------------------------
// AuxPluginIF
//---------------------------------------------------------
AuxPluginIF::~AuxPluginIF()
{
for (int i = 0; i < MAX_CHANNELS; ++i) {
if (_buffer[i])
free(_buffer[i]);
}
}
//---------------------------------------------------------
// apply
//---------------------------------------------------------
void AuxPluginIF::apply(unsigned nframes, float** s, float** /*dst*/)
{
// TODO: optimize copy away if there is no route
double vol[2];
vol[0] = volume * (1.0 - pan);
vol[1] = volume * (1.0 + pan);
for (int i = 0; i < pluginI->channel(); ++i) {
float* dst = _buffer[i];
float* src = s[i];
double v = vol[i];
for (unsigned k = 0; k < nframes; ++k)
*dst++ = (*src++) * v;
}
}
//---------------------------------------------------------
// getParameterName
//---------------------------------------------------------
const char* AuxPluginIF::getParameterName(int i) const
{
if (i == 0)
return "Volume";
else
return "Pan";
}
//---------------------------------------------------------
// setParam
//---------------------------------------------------------
void AuxPluginIF::setParam(int i, double val)
{
if (i == 0)
volume = val;
else
pan = val;
}
//---------------------------------------------------------
// param
//---------------------------------------------------------
float AuxPluginIF::param(int i) const
{
return i == 0 ? volume : pan;
}
//---------------------------------------------------------
// init
//---------------------------------------------------------
bool AuxPluginIF::init(Plugin* p)
{
volume = p->defaultValue(0);
pan = p->defaultValue(1);
return true;
}
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