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Diffstat (limited to 'src/com/jsyn/unitgen/FunctionEvaluator.java')
-rw-r--r-- | src/com/jsyn/unitgen/FunctionEvaluator.java | 76 |
1 files changed, 0 insertions, 76 deletions
diff --git a/src/com/jsyn/unitgen/FunctionEvaluator.java b/src/com/jsyn/unitgen/FunctionEvaluator.java deleted file mode 100644 index 0cc0c83..0000000 --- a/src/com/jsyn/unitgen/FunctionEvaluator.java +++ /dev/null @@ -1,76 +0,0 @@ -/* - * Copyright 2009 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. - */ -/** - * Aug 26, 2009 - * com.jsyn.engine.units.TunableFilter.java - */ - -package com.jsyn.unitgen; - -import com.jsyn.data.Function; -import com.jsyn.ports.UnitFunctionPort; -import com.jsyn.ports.UnitInputPort; - -/** - * Convert an input value to an output value. The Function is typically implemented by looking up a - * value in a DoubleTable. But other implementations of Function can be used. Input typically ranges - * from -1.0 to +1.0. - * - * <pre> - * <code> - * // A unit that will lookup the function. - * FunctionEvaluator shaper = new FunctionEvaluator(); - * synth.add( shaper ); - * shaper.start(); - * // Define a custom function. - * Function cuber = new Function() - * { - * public double evaluate( double x ) - * { - * return x * x * x; - * } - * }; - * shaper.function.set(cuber); - * - * shaper.input.set( 0.5 ); - * </code> - * </pre> - * - * @author Phil Burk (C) 2009 Mobileer Inc - * @see Function - */ -public class FunctionEvaluator extends UnitFilter { - public UnitInputPort amplitude; - public UnitFunctionPort function; - - public FunctionEvaluator() { - addPort(amplitude = new UnitInputPort("Amplitude", 1.0)); - addPort(function = new UnitFunctionPort("Function")); - } - - @Override - public void generate(int start, int limit) { - double[] inputs = input.getValues(); - double[] amplitudes = amplitude.getValues(); - double[] outputs = output.getValues(); - Function functionObject = function.get(); - - for (int i = start; i < limit; i++) { - outputs[i] = functionObject.evaluate(inputs[i]) * amplitudes[i]; - } - - } -} |