TestProcessControlLogic.java revision 8729:0242fce0f717
11590Srgrimes/* 21590Srgrimes * Copyright (c) 2009, Oracle and/or its affiliates. All rights reserved. 31590Srgrimes * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 41590Srgrimes * 51590Srgrimes * This code is free software; you can redistribute it and/or modify it 61590Srgrimes * under the terms of the GNU General Public License version 2 only, as 71590Srgrimes * published by the Free Software Foundation. 81590Srgrimes * 91590Srgrimes * This code is distributed in the hope that it will be useful, but WITHOUT 101590Srgrimes * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 111590Srgrimes * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 121590Srgrimes * version 2 for more details (a copy is included in the LICENSE file that 131590Srgrimes * accompanied this code). 141590Srgrimes * 151590Srgrimes * You should have received a copy of the GNU General Public License version 161590Srgrimes * 2 along with this work; if not, write to the Free Software Foundation, 171590Srgrimes * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 181590Srgrimes * 191590Srgrimes * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 201590Srgrimes * or visit www.oracle.com if you need additional information or have any 211590Srgrimes * questions. 221590Srgrimes */ 231590Srgrimes 241590Srgrimes/* @test 251590Srgrimes @summary Test SoftLowFrequencyOscillator processControlLogic method */ 261590Srgrimes 271590Srgrimesimport com.sun.media.sound.AudioSynthesizerPropertyInfo; 281590Srgrimesimport com.sun.media.sound.SoftLowFrequencyOscillator; 291590Srgrimesimport com.sun.media.sound.SoftSynthesizer; 301590Srgrimes 3128454Scharnierpublic class TestProcessControlLogic { 321590Srgrimes 331590Srgrimes private static float control_rate = 147f; 341590Srgrimes private static SoftSynthesizer synth = new SoftSynthesizer(); 351590Srgrimes private static SoftLowFrequencyOscillator lfo = new SoftLowFrequencyOscillator(); 361590Srgrimes 3728454Scharnier private static void testLFO(boolean shared, int instance, float freq, float delay, 381590Srgrimes float delay2) throws Exception { 3928454Scharnier SoftLowFrequencyOscillator lfo = 4028454Scharnier shared?TestProcessControlLogic.lfo:new SoftLowFrequencyOscillator(); 4150477Speter lfo.reset(); 421590Srgrimes double[] lfo_freq = lfo.get(instance, "freq"); 431590Srgrimes double[] lfo_delay = lfo.get(instance, "delay"); 4428454Scharnier double[] lfo_delay2 = lfo.get(instance, "delay2"); 45132858Stjr double[] lfo_output = lfo.get(instance, null); 461590Srgrimes lfo_freq[0] = freq; 4728454Scharnier lfo_delay[0] = delay; 4828454Scharnier lfo_delay2[0] = delay2; 4928454Scharnier lfo.init(synth); 5028454Scharnier 51132858Stjr // For delayCount amount time, the output LFO should be 0.5 52200462Sdelphij int delayCount = (int) ((Math.pow(2, delay / 1200.0) * control_rate)); 531590Srgrimes delayCount += (int) ((delay2 * control_rate) / 1000.0); 541590Srgrimes for (int i = 0; i < delayCount; i++) { 551590Srgrimes if (Math.abs(0.5 - lfo_output[0]) > 0.000001) 561590Srgrimes throw new Exception("Incorrect LFO output (" 571590Srgrimes +"0.5 != "+lfo_output[0]+")!"); 581590Srgrimes lfo.processControlLogic(); 591590Srgrimes } 601590Srgrimes 611590Srgrimes // After the delay the LFO should start oscillate 621590Srgrimes // Let make sure output is accurate enough 631590Srgrimes double p_step = (440.0 / control_rate) 641590Srgrimes * Math.exp((freq - 6900.0) * (Math.log(2) / 1200.0)); 651590Srgrimes double p = 0; 661590Srgrimes for (int i = 0; i < 30; i++) { 671590Srgrimes p += p_step; 681590Srgrimes double predicted_output = 0.5 + Math.sin(p * 2 * Math.PI) * 0.5; 69227190Sed if (Math.abs(predicted_output - lfo_output[0]) > 0.001) 70227190Sed throw new Exception("Incorrect LFO output (" 7187303Sdwmalone +predicted_output+" != "+lfo_output[0]+")!"); 721590Srgrimes lfo.processControlLogic(); 731590Srgrimes } 741590Srgrimes 751590Srgrimes } 761590Srgrimes 77132858Stjr public static void main(String[] args) throws Exception { 78132858Stjr 791590Srgrimes // Get default control rate from synthesizer 801590Srgrimes AudioSynthesizerPropertyInfo[] p = synth.getPropertyInfo(null); 81227190Sed for (int i = 0; i < p.length; i++) { 82227190Sed if (p[i].name.equals("control rate")) { 83227190Sed control_rate = ((Float) p[i].value).floatValue(); 84227190Sed break; 85227190Sed } 86227190Sed } 871590Srgrimes 8892922Simp // Test LFO under various configurations 89227190Sed for (int instance = 0; instance < 3; instance++) 90227190Sed for (int d1 = -3000; d1 < 0; d1 += 1000) 91227190Sed for (int d2 = 0; d2 < 5000; d2 += 1000) 92227190Sed for (int fr = -1000; fr < 1000; fr += 100) { 93227190Sed testLFO(true, instance, 94227190Sed (fr == -1000) ? Float.NEGATIVE_INFINITY : fr, 95227190Sed (d1 == -3000) ? Float.NEGATIVE_INFINITY : d1, 96227190Sed d2); 97227190Sed testLFO(false, instance, 98227190Sed (fr == -1000) ? Float.NEGATIVE_INFINITY : fr, 99227190Sed (d1 == -3000) ? Float.NEGATIVE_INFINITY : d1, 10028454Scharnier d2); 1011590Srgrimes } 1021590Srgrimes 10328789Scharnier } 104102944Sdwmalone} 1051590Srgrimes