[Webkit-unassigned] [Bug 21322] DumpRenderTree pixel test improvements

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=21322





------- Comment #5 from pol at apple.com  2008-10-03 09:56 PDT -------
We were indeed wondering if there was a NS default for font smoothing. But
actually, it doesn't really matter:

It seems simpler to generate the same pixels on PPC or X86, so that the MD5
hashes match. That's why it now renders to RGBA8 independently of the
endianness. A side effect of this is that because CG font smoothing is only
supported for (kCGImageAlphaPremultipliedFirst | kCGBitmapByteOrder32Host), you
can't have a common pixel format and font smoothing.

On a side note, RGBA8 is also matching the PNG 32bits pixel format, except for
alpha being premultiplied in CG and not in PNG.


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