[sensor] the data produced from populateMatrix function with Float32Array is incorrect
Reported by
canx....@intel.com,
Apr 10 2017
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Issue descriptionUserAgent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.133 Safari/537.36 Steps to reproduce the problem: Test Case:https://thewebera.github.io/web-test-suite/generic-sensor/sensors/AbsoluteOrientationSensor.https.html Test Name: the data produced from Float32Array populateMatrix function is correct What is the expected behavior? The data produced from populateMatrix function with Float32Array is correct. The expected data: 0: 0.5350068807601929 1: -0.8448300361633301 2: -0.005295960698276758 3: 0 4: 0.2369677871465683 5: 0.14404357969760895 6: 0.960777997970581 7: 0 8: -0.8109328150749207 9: -0.5152769684791565 10: 0.27726295590400696 11: 0 12: 0 13: 0 14: 0 15: 1 What went wrong? The data produced from populateMatrix function with Float32Array is incorrect. The actually value: 0: 0.5350069064971557 1: -0.8448300126842838 2: -0.005295960606389372 3: 0 4: 0.23696778051024125 5: 0.14404358220666147 6: 0.9607780082009061 7: 0 8: -0.8109328384835095 9: -0.5152769737823757 10: 0.27726297020016766 11: 0 12: 0 13: 0 14: 0 15: 1 Did this work before? N/A Does this work in other browsers? N/A Chrome version: 59.0.3064.0 Channel: canary OS Version: windows 10 Flash Version: Shockwave Flash 25.0 r0 The DOMMatrix and Float64Array populateMatrix function is works fine. Spec Link:https://w3c.github.io/orientation-sensor/#orientationsensor-populatematrix Description：If targetMatrix is of Float32Array or Float64Array type, run these sub-steps: Set targetMatrix[0] = 1 - 2 * y * y - 2 * z * z Set targetMatrix[1] = 2 * x * y - 2 * z * w Set targetMatrix[2] = 2 * x * z + 2 * y * w Set targetMatrix[3] = 0 Set targetMatrix[4] = 2 * x * y + 2 * z * w Set targetMatrix[5] = 1 - 2 * x * x - 2 * z * z Set targetMatrix[6] = 2 * y * z - 2 * x * w Set targetMatrix[7] = 0 Set targetMatrix[8] = 2 * x * z - 2 * y * w Set targetMatrix[9] = 2 * y * z + 2 * x * w Set targetMatrix[10] = 1 - 2 * x * x - 2 * y * y Set targetMatrix[11] = 0 Set targetMatrix[12] = 0 Set targetMatrix[13] = 0 Set targetMatrix[14] = 0 Set targetMatrix[15] = 1
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Apr 11 2017
Tested this issue on Windows 10 with chrome #57.0.2987.133, launched chrome and navigated to the test url in comment #0 Didn't see any output as mentioned as mentioned as actual & expected result in the comment #0, instead observed "ReferenceError: AbsoluteOrientationSensor is not defined" errors. Attaching a screenshot for reference. canx.cao@ Could you look into and let us know your observations.
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Apr 11 2017
kkaluri@ do you have the "Generic Sensor" flag enabled?
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Apr 18 2017
Mikhail@, please take look at https://bugs.chromium.org/p/chromium/issues/detail?id=709913#c1 , what do you think?
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Apr 18 2017
Thank you for providing more feedback. Adding requester "kkaluri@chromium.org" to the cc list and removing "Needs-Feedback" label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot
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Apr 18 2017
canx.cao@ think Alex is right, test for float32 should consider the type size.
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May 9 2017
This issue cannot reproduce with chrome 60.0.3091.0(windows) and 60.0.3089.0(Android). Thanks! Close. |
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Comment 1 by alexande...@intel.com
, Apr 10 2017