1 files changed, 0 insertions, 145 deletions
diff --git a/src/com/jsyn/unitgen/EnvelopeAttackDecay.java b/src/com/jsyn/unitgen/EnvelopeAttackDecay.java
deleted file mode 100644
index db3ecaa..0000000
--- a/src/com/jsyn/unitgen/EnvelopeAttackDecay.java
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright 2011 Phil Burk, Mobileer Inc
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- * 
- *     http://www.apache.org/licenses/LICENSE-2.0
- * 
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package com.jsyn.unitgen;
-
-import com.jsyn.engine.SynthesisEngine;
-import com.jsyn.ports.UnitInputPort;
-
-/**
- * Two stage Attack/Decay envelope that is triggered by an input level greater than THRESHOLD. This
- * does not sustain.
- * 
- * @author Phil Burk (C) 2011 Mobileer Inc
- */
-public class EnvelopeAttackDecay extends UnitGate {
-    public static final double THRESHOLD = 0.01;
-    private static final double MIN_DURATION = (1.0 / 100000.0);
-
-    /**
-     * Time in seconds for the rising stage of the envelope to go from 0.0 to 1.0. The attack is a
-     * linear ramp.
-     */
-    public UnitInputPort attack;
-    /**
-     * Time in seconds for the falling stage to go from 0 dB to -90 dB.
-     */
-    public UnitInputPort decay;
-
-    public UnitInputPort amplitude;
-
-    private enum State {
-        IDLE, ATTACKING, DECAYING
-    }
-
-    private State state = State.IDLE;
-    private double scaler = 1.0;
-    private double level;
-    private double increment;
-
-    public EnvelopeAttackDecay() {
-        super();
-        addPort(attack = new UnitInputPort("Attack"));
-        attack.setup(0.001, 0.05, 8.0);
-        addPort(decay = new UnitInputPort("Decay"));
-        decay.setup(0.001, 0.2, 8.0);
-        addPort(amplitude = new UnitInputPort("Amplitude", 1.0));
-        startIdle();
-    }
-
-    public void export(Circuit circuit, String prefix) {
-        circuit.addPort(attack, prefix + attack.getName());
-        circuit.addPort(decay, prefix + decay.getName());
-    }
-
-    @Override
-    public void generate(int start, int limit) {
-        double[] amplitudes = amplitude.getValues();
-        double[] outputs = output.getValues();
-
-        for (int i = start; i < limit;) {
-            boolean triggered = input.checkGate(i);
-            switch (state) {
-                case IDLE:
-                    for (; i < limit; i++) {
-                        outputs[i] = level;
-                        if (triggered) {
-                            startAttack(i);
-                            break;
-                        }
-                    }
-                    break;
-                case ATTACKING:
-                    for (; i < limit; i++) {
-                        // Increment first so we can render fast attacks.
-                        level += increment;
-                        if (level >= 1.0) {
-                            level = 1.0;
-                            outputs[i] = level * amplitudes[i];
-                            startDecay(i);
-                            break;
-                        }
-                        outputs[i] = level * amplitudes[i];
-                    }
-                    break;
-                case DECAYING:
-                    for (; i < limit; i++) {
-                        outputs[i] = level * amplitudes[i];
-                        level *= scaler;
-                        if (triggered) {
-                            startAttack(i);
-                            break;
-                        } else if (level < SynthesisEngine.DB90) {
-                            input.checkAutoDisable();
-                            startIdle();
-                            break;
-                        }
-                    }
-                    break;
-            }
-        }
-    }
-
-    private void startIdle() {
-        state = State.IDLE;
-        level = 0.0;
-    }
-
-    private void startAttack(int i) {
-        double[] attacks = attack.getValues();
-        double duration = attacks[i];
-        if (duration < MIN_DURATION) {
-            level = 1.0;
-            startDecay(i);
-        } else {
-            // assume going from 0.0 to 1.0 even if retriggering
-            increment = getFramePeriod() / duration;
-            state = State.ATTACKING;
-        }
-    }
-
-    private void startDecay(int i) {
-        double[] decays = decay.getValues();
-        double duration = decays[i];
-        if (duration < MIN_DURATION) {
-            startIdle();
-        } else {
-            scaler = getSynthesisEngine().convertTimeToExponentialScaler(duration);
-            state = State.DECAYING;
-        }
-    }
-
-}