[Webkit-unassigned] [Bug 29279] [Qt] Use rgb565 format for images on Symbian platform

bugzilla-daemon at webkit.org bugzilla-daemon at webkit.org
Wed Sep 23 09:30:15 PDT 2009


https://bugs.webkit.org/show_bug.cgi?id=29279


Ariya Hidayat <ariya.hidayat at trolltech.com> changed:

           What    |Removed                     |Added
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  Attachment #39693|review?                     |review-
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--- Comment #7 from Ariya Hidayat <ariya.hidayat at trolltech.com>  2009-09-23 09:30:14 PDT ---
(From update of attachment 39693)

> +        Images with no alpha channel will be converted to 16bit(rgb565) format in Qt Symbian.
> +        This reduces the memory footprint for displaying images.
> +        https://bugs.webkit.org/show_bug.cgi?id=29279

Hardcoding the image format sounds like a wrong thing to do. What about having
a setting for that (QWebSettings)?

Also, what if the display depth is 24-bit or 32-bit? We save memory footprint
with the patch, but we slow down the painting (even without alpha-blending)
because of 16-to-32 pixel handling.

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