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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/>.
**/
//
// BitcrushEffect.cpp
// additiveSynth
//
// Created by Ryan Challinor on 11/21/12.
//
//
#include "BitcrushEffect.h"
#include "OpenFrameworksPort.h"
#include "SynthGlobals.h"
#include "Profiler.h"
#include "UIControlMacros.h"
BitcrushEffect::BitcrushEffect()
{
}
void BitcrushEffect::CreateUIControls()
{
IDrawableModule::CreateUIControls();
UIBLOCK0();
FLOATSLIDER(mCrushSlider, "crush", &mCrush, 1, 24);
FLOATSLIDER_DIGITS(mDownsampleSlider, "downsamp", &mDownsample, 1, 40, 0);
ENDUIBLOCK(mWidth, mHeight);
}
void BitcrushEffect::ProcessAudio(double time, ChannelBuffer* buffer)
{
PROFILER(BitcrushEffect);
if (!mEnabled)
return;
float bufferSize = buffer->BufferSize();
ComputeSliders(0);
float bitDepth = powf(2, 25 - mCrush);
float invBitDepth = 1.f / bitDepth;
for (int ch = 0; ch < buffer->NumActiveChannels(); ++ch)
{
for (int i = 0; i < bufferSize; ++i)
{
if (mSampleCounter[ch] < (int)mDownsample - 1)
{
++mSampleCounter[ch];
}
else
{
mHeldDownsample[ch] = buffer->GetChannel(ch)[i];
mSampleCounter[ch] = 0;
}
buffer->GetChannel(ch)[i] = ((int)(mHeldDownsample[ch] * bitDepth)) * invBitDepth;
}
}
}
void BitcrushEffect::DrawModule()
{
if (!mEnabled)
return;
mDownsampleSlider->Draw();
mCrushSlider->Draw();
}
float BitcrushEffect::GetEffectAmount()
{
if (!mEnabled)
return 0;
return ofClamp((mCrush - 1) / 24.0f + ((int)mDownsample - 1) / 40.0f, 0, 1);
}
void BitcrushEffect::CheckboxUpdated(Checkbox* checkbox, double time)
{
}
void BitcrushEffect::IntSliderUpdated(IntSlider* slider, int oldVal, double time)
{
}
void BitcrushEffect::FloatSliderUpdated(FloatSlider* slider, float oldVal, double time)
{
}
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