103 lines
3.2 KiB
Haxe
103 lines
3.2 KiB
Haxe
package auratests.dsp;
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import utest.Assert;
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import kha.arrays.Float32Array;
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import aura.Aura;
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import aura.dsp.SparseConvolver;
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import aura.types.AudioBuffer;
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import aura.utils.TestSignals;
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@:access(aura.dsp.SparseConvolver)
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class TestSparseConvolver extends utest.Test {
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var audioBuffer: AudioBuffer;
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var sparseConvolver: SparseConvolver;
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function setup() {
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audioBuffer = new AudioBuffer(2, 512);
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sparseConvolver = new SparseConvolver(1, 4);
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}
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function test_simpleDelay() {
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for (i in 0...audioBuffer.channelLength) {
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audioBuffer.getChannelView(0)[i] = Math.sin(i * 2 * Math.PI / audioBuffer.channelLength);
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audioBuffer.getChannelView(1)[i] = Math.cos(i * 2 * Math.PI / audioBuffer.channelLength);
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}
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final impulse = sparseConvolver.impulseBuffer;
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impulse.setImpulsePos(0, 3);
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impulse.setImpulseMagnitude(0, 1.0);
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sparseConvolver.process(audioBuffer);
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final wanted = new AudioBuffer(2, audioBuffer.channelLength);
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for (i in 0...wanted.channelLength) {
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wanted.getChannelView(0)[i] = Math.sin((i - 3) * 2 * Math.PI / wanted.channelLength);
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wanted.getChannelView(1)[i] = Math.cos((i - 3) * 2 * Math.PI / wanted.channelLength);
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}
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for (i in 0...3) {
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Assert.floatEquals(0, audioBuffer.getChannelView(0)[i]);
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Assert.floatEquals(0, audioBuffer.getChannelView(1)[i]);
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}
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for (i in 3...wanted.channelLength) {
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Assert.floatEquals(wanted.getChannelView(0)[i], audioBuffer.getChannelView(0)[i]);
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Assert.floatEquals(wanted.getChannelView(1)[i], audioBuffer.getChannelView(1)[i]);
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}
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// Overlap
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audioBuffer.clear();
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sparseConvolver.process(audioBuffer);
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for (i in 0...3) {
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Assert.floatEquals(wanted.getChannelView(0)[i], audioBuffer.getChannelView(0)[i]);
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Assert.floatEquals(wanted.getChannelView(1)[i], audioBuffer.getChannelView(1)[i]);
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}
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for (i in 3...wanted.channelLength) {
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Assert.floatEquals(0, audioBuffer.getChannelView(0)[i]);
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Assert.floatEquals(0, audioBuffer.getChannelView(1)[i]);
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}
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}
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}
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@:access(aura.dsp.SparseConvolver.SparseImpulseBuffer)
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class TestSparseImpulseBuffer extends utest.Test {
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var buffer: SparseImpulseBuffer;
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function setup() {
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buffer = new SparseImpulseBuffer(4);
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}
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function test_length() {
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Assert.equals(1, new SparseImpulseBuffer(1).length);
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Assert.equals(2, new SparseImpulseBuffer(2).length);
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Assert.equals(3, new SparseImpulseBuffer(3).length);
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Assert.equals(1024, new SparseImpulseBuffer(1024).length);
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}
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function test_impulsePos_notOverwrittenByOtherImpulses() {
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buffer.setImpulsePos(0, 3);
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buffer.setImpulsePos(1, 9);
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buffer.setImpulsePos(2, 17);
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buffer.setImpulsePos(3, 42);
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Assert.equals(3, buffer.getImpulsePos(0));
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Assert.equals(9, buffer.getImpulsePos(1));
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Assert.equals(17, buffer.getImpulsePos(2));
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Assert.equals(42, buffer.getImpulsePos(3));
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}
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function test_impulseMagnitude_notOverwrittenByOtherImpulses() {
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buffer.setImpulseMagnitude(0, 0.3);
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buffer.setImpulseMagnitude(1, 0.9);
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buffer.setImpulseMagnitude(2, 0.17);
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buffer.setImpulseMagnitude(3, 0.42);
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Assert.floatEquals(0.3, buffer.getImpulseMagnitude(0));
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Assert.floatEquals(0.9, buffer.getImpulseMagnitude(1));
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Assert.floatEquals(0.17, buffer.getImpulseMagnitude(2));
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Assert.floatEquals(0.42, buffer.getImpulseMagnitude(3));
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}
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}
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