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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 19:33:14 +0000 |
| commit | 36d22d82aa202bb199967e9512281e9a53db42c9 (patch) | |
| tree | 105e8c98ddea1c1e4784a60a5a6410fa416be2de /dom/media/webaudio/test/test_waveShaper.html | |
| parent | Initial commit. (diff) | |
| download | firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.tar.xz firefox-esr-36d22d82aa202bb199967e9512281e9a53db42c9.zip | |
Adding upstream version 115.7.0esr.upstream/115.7.0esr
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'dom/media/webaudio/test/test_waveShaper.html')
| -rw-r--r-- | dom/media/webaudio/test/test_waveShaper.html | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/dom/media/webaudio/test/test_waveShaper.html b/dom/media/webaudio/test/test_waveShaper.html new file mode 100644 index 0000000000..9d2f1b3fa2 --- /dev/null +++ b/dom/media/webaudio/test/test_waveShaper.html @@ -0,0 +1,60 @@ +<!DOCTYPE HTML> +<html> +<head> + <title>Test WaveShaperNode with no curve</title> + <script src="/tests/SimpleTest/SimpleTest.js"></script> + <script type="text/javascript" src="webaudio.js"></script> + <link rel="stylesheet" type="text/css" href="/tests/SimpleTest/test.css" /> +</head> +<body> +<pre id="test"> +<script class="testbody" type="text/javascript"> + +var gTest = { + length: 4096, + numberOfChannels: 1, + createGraph(context) { + var source = context.createBufferSource(); + source.buffer = this.buffer; + + var shaper = new WaveShaperNode(context); + shaper.curve = this.curve; + + source.connect(shaper); + + source.start(0); + return shaper; + }, + createExpectedBuffers(context) { + this.buffer = context.createBuffer(1, 4096, context.sampleRate); + for (var i = 1; i < 4095; ++i) { + this.buffer.getChannelData(0)[i] = 2 * (i / 4096) - 1; + } + // Two out of range values + this.buffer.getChannelData(0)[0] = -2; + this.buffer.getChannelData(0)[4095] = 2; + + this.curve = new Float32Array(2048); + for (var i = 0; i < 2048; ++i) { + this.curve[i] = Math.sin(100 * Math.PI * (i + 1) / context.sampleRate); + } + + var expectedBuffer = context.createBuffer(1, 4096, context.sampleRate); + for (var i = 1; i < 4095; ++i) { + var input = this.buffer.getChannelData(0)[i]; + var index = Math.floor(this.curve.length * (input + 1) / 2); + index = Math.max(0, Math.min(this.curve.length - 1, index)); + expectedBuffer.getChannelData(0)[i] = this.curve[index]; + } + expectedBuffer.getChannelData(0)[0] = this.curve[0]; + expectedBuffer.getChannelData(0)[4095] = this.curve[2047]; + return expectedBuffer; + }, +}; + +runTest(); + +</script> +</pre> +</body> +</html> |