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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/>.
**/
//
// Stutter.h
// modularSynth
//
// Created by Ryan Challinor on 12/24/12.
//
//
#pragma once
#include "MidiDevice.h"
#include "RollingBuffer.h"
#include "Checkbox.h"
#include "Ramp.h"
#include "Transport.h"
#include "Slider.h"
#include "JumpBlender.h"
#define STUTTER_BLEND_WRAPAROUND_SAMPLES 100
#define STUTTER_START_BLEND_MS 3
#define STUTTER_BUFFER_SIZE 5 * gSampleRate
class Looper;
class PatchCableSource;
struct StutterParams
{
StutterParams() {}
StutterParams(NoteInterval _interval, float _speed)
: interval(_interval)
, speedStart(_speed)
, speedEnd(_speed)
{}
StutterParams(NoteInterval _interval, float _speedStart, float _speedEnd, float _speedBlendTime)
: interval(_interval)
, speedStart(_speedStart)
, speedEnd(_speedEnd)
, speedBlendTime(_speedBlendTime)
{}
bool operator==(const StutterParams& other) const
{
return interval == other.interval &&
speedStart == other.speedStart &&
speedEnd == other.speedEnd &&
speedBlendTime == other.speedBlendTime;
}
NoteInterval interval{ NoteInterval::kInterval_16n };
float speedStart{ 1 };
float speedEnd{ 1 };
float speedBlendTime{ 0 };
};
class Stutter : public ITimeListener
{
public:
Stutter();
~Stutter();
void Init();
void DrawStutterBuffer(float x, float y, float width, float height);
void StartStutter(double time, StutterParams stutter);
void EndStutter(double time, StutterParams stutter);
void SetEnabled(double time, bool enabled);
//IAudioEffect
void ProcessAudio(double time, ChannelBuffer* buffer);
//ITimeListener
void OnTimeEvent(double time) override;
float mFreeStutterLength{ .1 };
float mFreeStutterSpeed{ 1 };
private:
void DoCapture();
float GetStutterSampleWithWraparoundBlend(int pos, int ch);
void DoStutter(double time, StutterParams stutter);
void StopStutter(double time);
float GetBufferReadPos(float stutterPos);
RollingBuffer mRecordBuffer;
ChannelBuffer mStutterBuffer;
bool mEnabled{ true };
bool mStuttering{ false };
int mCaptureLength{ 1 };
int mStutterLength{ 1 };
Ramp mStutterSpeed;
float mStutterPos{ 0 };
bool mAutoStutter{ false };
Checkbox* mAutoCheckbox{ nullptr };
Ramp mBlendRamp;
static bool sQuantize;
ofMutex mMutex;
StutterParams mCurrentStutter;
static int sStutterSubdivide;
IntSlider* mSubdivideSlider{ nullptr };
JumpBlender mJumpBlender[ChannelBuffer::kMaxNumChannels]{};
int mNanopadScene{ 0 };
std::list<StutterParams> mStutterStack;
Ramp mStutterLengthRamp;
bool mFadeStutter{ false };
Checkbox* mFadeCheckbox{ nullptr };
};
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