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/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#include "../JuceLibraryCode/JuceHeader.h"
#include "../../GenericEditor.h"
//==============================================================================
/**
*/
class GainProcessor : public AudioProcessor
{
public:
//==============================================================================
GainProcessor()
: AudioProcessor (BusesProperties().withInput ("Input", AudioChannelSet::stereo())
.withOutput ("Output", AudioChannelSet::stereo()))
{
addParameter (gain = new AudioParameterFloat ("gain", "Gain", 0.0f, 1.0f, 0.5f));
}
~GainProcessor() {}
//==============================================================================
void prepareToPlay (double, int) override {}
void releaseResources() override {}
void processBlock (AudioSampleBuffer& buffer, MidiBuffer&) override
{
buffer.applyGain (*gain);
}
//==============================================================================
AudioProcessorEditor* createEditor() override { return new GenericEditor (*this); }
bool hasEditor() const override { return true; }
//==============================================================================
const String getName() const override { return "Gain PlugIn"; }
bool acceptsMidi() const override { return false; }
bool producesMidi() const override { return false; }
double getTailLengthSeconds() const override { return 0; }
//==============================================================================
int getNumPrograms() override { return 1; }
int getCurrentProgram() override { return 0; }
void setCurrentProgram (int) override {}
const String getProgramName (int) override { return String(); }
void changeProgramName (int , const String& ) override { }
//==============================================================================
void getStateInformation (MemoryBlock& destData) override
{
MemoryOutputStream (destData, true).writeFloat (*gain);
}
void setStateInformation (const void* data, int sizeInBytes) override
{
gain->setValueNotifyingHost (MemoryInputStream (data, static_cast<size_t> (sizeInBytes), false).readFloat());
}
//==============================================================================
bool isBusesLayoutSupported (const BusesLayout& layouts) const override
{
const AudioChannelSet& mainInLayout = layouts.getChannelSet (true, 0);
const AudioChannelSet& mainOutLayout = layouts.getChannelSet (false, 0);
return (mainInLayout == mainOutLayout && (! mainInLayout.isDisabled()));
}
private:
//==============================================================================
AudioParameterFloat* gain;
enum { kVST2MaxChannels = 16 };
//==============================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (GainProcessor)
};
//==============================================================================
// This creates new instances of the plugin..
AudioProcessor* JUCE_CALLTYPE createPluginFilter()
{
return new GainProcessor();
}
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