paulxstretch/deps/juce/examples/Plugins/GainPluginDemo.h
essej 25bd5d8adb git subrepo clone --branch=sono6good https://github.com/essej/JUCE.git deps/juce
subrepo:
  subdir:   "deps/juce"
  merged:   "b13f9084e"
upstream:
  origin:   "https://github.com/essej/JUCE.git"
  branch:   "sono6good"
  commit:   "b13f9084e"
git-subrepo:
  version:  "0.4.3"
  origin:   "https://github.com/ingydotnet/git-subrepo.git"
  commit:   "2f68596"
2022-04-18 17:51:22 -04:00

123 lines
5.0 KiB
C++

/*
==============================================================================
This file is part of the JUCE examples.
Copyright (c) 2020 - Raw Material Software Limited
The code included in this file is provided under the terms of the ISC license
http://www.isc.org/downloads/software-support-policy/isc-license. Permission
To use, copy, modify, and/or distribute this software for any purpose with or
without fee is hereby granted provided that the above copyright notice and
this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES,
WHETHER EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR
PURPOSE, ARE DISCLAIMED.
==============================================================================
*/
/*******************************************************************************
The block below describes the properties of this PIP. A PIP is a short snippet
of code that can be read by the Projucer and used to generate a JUCE project.
BEGIN_JUCE_PIP_METADATA
name: GainPlugin
version: 1.0.0
vendor: JUCE
website: http://juce.com
description: Gain audio plugin.
dependencies: juce_audio_basics, juce_audio_devices, juce_audio_formats,
juce_audio_plugin_client, juce_audio_processors,
juce_audio_utils, juce_core, juce_data_structures,
juce_events, juce_graphics, juce_gui_basics, juce_gui_extra
exporters: xcode_mac, vs2019
moduleFlags: JUCE_STRICT_REFCOUNTEDPOINTER=1
type: AudioProcessor
mainClass: GainProcessor
useLocalCopy: 1
END_JUCE_PIP_METADATA
*******************************************************************************/
#pragma once
//==============================================================================
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));
}
//==============================================================================
void prepareToPlay (double, int) override {}
void releaseResources() override {}
void processBlock (AudioBuffer<float>& buffer, MidiBuffer&) override
{
buffer.applyGain (*gain);
}
void processBlock (AudioBuffer<double>& buffer, MidiBuffer&) override
{
buffer.applyGain ((float) *gain);
}
//==============================================================================
AudioProcessorEditor* createEditor() override { return new GenericAudioProcessorEditor (*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 "None"; }
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 auto& mainInLayout = layouts.getChannelSet (true, 0);
const auto& mainOutLayout = layouts.getChannelSet (false, 0);
return (mainInLayout == mainOutLayout && (! mainInLayout.isDisabled()));
}
private:
//==============================================================================
AudioParameterFloat* gain;
//==============================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (GainProcessor)
};