[Webkit-unassigned] [Bug 137793] Calling glReadPixels with BGRA format on an NVIDIA machine with an opaque context returns the wrong alpha values.

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=137793

--- Comment #11 from Roger Fong <roger_fong at apple.com> ---
a) No reason to run this test really...all readPixelsAndConvertToBGRAIfNecessary does on mac is call glReadPixels, so the times are the same.

b)
Running Time    Self        Symbol Name
5012.0ms    3.8%    445.0     readPixelsAndConvertToBGRAIfNecessary                                             
4562.0ms    3.5%    1.0     glReadPixels

c)
Running Time    Self    Symbol Name
5006.0ms    4.8%    1.0    readPixelsAndConvertToBGRAIfNecessary                               
4833.0ms    4.7%    0.0    glReadPixels

So it looks like the vaccelerator stuff is definitely faster, though I guess we already knew that to be the case.

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