[Webkit-unassigned] [Bug 106001] New: Floating point precision error in AudioPannerNode

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=106001

           Summary: Floating point precision error in AudioPannerNode
           Product: WebKit
           Version: 528+ (Nightly build)
          Platform: PC
        OS/Version: Linux
            Status: UNCONFIRMED
          Severity: Major
          Priority: P2
         Component: Web Audio
        AssignedTo: webkit-unassigned at lists.webkit.org
        ReportedBy: praveen.j at samsung.com
                CC: crogers at google.com, kaustubh.j at samsung.com


Please refer the sample code here below:


      test(function () {
            var context = window.AudioContext;
            var pannerNode = context.createPanner();
            pannerNode.maxDistance = 100.55;
            assert_true(pannerNode.maxDistance === 100.55, "AudioPannerNode.maxDistance is float value" + pannerNode.maxDistance);
        } );

Expected Result: Assert should return true.
Current Result: Assert is returning false. Because pannerNode.maxDistance is getting value as 100.55000305175781.
Analysis: While setMaxDistance() called, value is set as 100.55000305175781. The conversion is like double->float->double causing precision error.
Verified version: Webkitr-137862.

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