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/**
bespoke synth, a software modular synthesizer
Copyright (C) 2021 Ryan Challinor (contact: awwbees@gmail.com)
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 3 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, see <http://www.gnu.org/licenses/>.
**/
/*
==============================================================================
ChannelBuffer.h
Created: 10 Oct 2017 8:53:51pm
Author: Ryan Challinor
==============================================================================
*/
#pragma once
#include "SynthGlobals.h"
#include "FileStream.h"
class ChannelBuffer
{
public:
ChannelBuffer(int bufferSize);
ChannelBuffer(float* data, int bufferSize); //intended as a temporary holder for passing raw data to methods that want a ChannelBuffer
~ChannelBuffer();
float* GetChannel(int channel);
void Clear() const;
void SetMaxAllowedChannels(int channels);
void SetNumActiveChannels(int channels) { mActiveChannels = MIN(mNumChannels, channels); }
int NumActiveChannels() const { return mActiveChannels; }
int RecentNumActiveChannels() const { return mRecentActiveChannels; }
int NumTotalChannels() const { return mNumChannels; }
int BufferSize() const { return mBufferSize; }
void CopyFrom(ChannelBuffer* src, int length = -1, int startOffset = 0);
void SetChannelPointer(float* data, int channel, bool deleteOldData);
void Reset()
{
Clear();
mRecentActiveChannels = mActiveChannels;
SetNumActiveChannels(1);
}
void Resize(int bufferSize);
enum class LoadMode
{
kSetBufferSize,
kRequireExactBufferSize,
kAnyBufferSize
};
void Save(FileStreamOut& out, int writeLength);
void Load(FileStreamIn& in, int& readLength, LoadMode loadMode);
static const int kMaxNumChannels = 2;
private:
void Setup(int bufferSize);
int mActiveChannels{ 1 };
int mNumChannels{ 1 };
int mBufferSize{ 0 };
float** mBuffers;
int mRecentActiveChannels{ 1 };
bool mOwnsBuffers{ true };
};
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