43 lines
1.1 KiB
JavaScript
43 lines
1.1 KiB
JavaScript
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//
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// swar.js
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//--------------------
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// Reads swar files.
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// by RHY3756547
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//
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// includes: gl-matrix.js (glMatrix 2.0)
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//
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window.swar = function(input, dataView) {
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var t = this;
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this.load = load;
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function load(input, dataView) {
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var view = (dataView)?input:(new DataView(input));
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var header = null;
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var offset = 0;
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var stamp = readChar(view, 0x0)+readChar(view, 0x1)+readChar(view, 0x2)+readChar(view, 0x3);
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if (stamp != "SWAR") throw "SWAR invalid. Expected SWAR, found "+stamp;
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offset += 16; //skip magic number, size and number of blocks
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var data = readChar(view, offset)+readChar(view, offset+1)+readChar(view, offset+2)+readChar(view, offset+3);
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if (data != "DATA") throw "SWAV invalid, expected DATA, found "+data;
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offset += 40; //skip reserved 0s and size
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var nSamples = view.getUint32(offset, true);
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offset += 4;
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t.samples = [];
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for (var i=0; i<nSamples; i++) {
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t.samples.push(new swav(new DataView(input, view.getUint32(offset, true)), false, true));
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offset += 4;
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}
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}
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function readChar(view, offset) {
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return String.fromCharCode(view.getUint8(offset));
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}
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if (input != null) {
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load(input, dataView);
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}
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}
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