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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/>.
**/
//
// JumpBlender.cpp
// modularSynth
//
// Created by Ryan Challinor on 11/1/13.
//
//
#include "JumpBlender.h"
#include "SynthGlobals.h"
#include "Profiler.h"
JumpBlender::JumpBlender()
{
}
void JumpBlender::CaptureForJump(int pos, const float* sampleSource, int sourceLength, int samplesIn)
{
assert(pos < sourceLength);
mBlending = true;
mBlendSample = 0;
if (pos + JUMP_BLEND_SAMPLES <= sourceLength)
{
BufferCopy((float*)mSamples, sampleSource + pos, JUMP_BLEND_SAMPLES);
}
else
{
int samplesLeft = sourceLength - pos;
BufferCopy(mSamples, sampleSource + pos, samplesLeft);
BufferCopy(mSamples + samplesLeft, sampleSource, (JUMP_BLEND_SAMPLES - samplesLeft));
}
double time = gTime + samplesIn * gInvSampleRateMs;
mRamp.Start(time, 1, 0, time + JUMP_BLEND_SAMPLES * gInvSampleRateMs);
}
float JumpBlender::Process(float sample, int samplesIn)
{
if (mBlendSample == JUMP_BLEND_SAMPLES)
mBlending = false;
if (!mBlending)
return sample;
float rampVal = mRamp.Value(gTime + samplesIn * gInvSampleRateMs);
return sample * (1 - rampVal) + mSamples[mBlendSample++] * rampVal;
}
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