On Mon, Sep 13, 2010 at 05:58:07PM -0500, evgeny wrote: > Package: iceweasel > Version: 3.5.12-2 > Severity: normal > Tags: patch > > Upscaled images looks ugly. Here is what is written about it in > /iceweasel-3.5.12/gfx/src/thebes/nsThebesImage.cpp line 672: > > // See bug 324698. This is a workaround for EXTEND_PAD not being > // implemented correctly on linux in the X server. > // > // Set the filter to CAIRO_FILTER_FAST --- otherwise, > // pixman's sampling will sample transparency for the outside edges > // and we'll > // get blurry edges. CAIRO_EXTEND_PAD would also work here, if > // available > // > // But don't do this for simple downscales because it's horrible. > // Downscaling means that device-space coordinates are > // scaled *up* to find the image pixel coordinates. > // > // deviceToImage is slightly stale because up above we may > // have adjusted the pattern's matrix ... but the adjustment > // is only a translation so the scale factors in deviceToImage > // are still valid. > > This workaround makes upscaled images look really bad, but it is not > needed anymore! For quite long time everything works fine without it, > i.e. X server was fixed I guess. I've been patching (disabling this > workaround) and building iceweasel myself for quite sometime, and > images look way better. So please include this patch! Just got tired > building iceweasel myself. Many users like me with high resolution of > the screen need to scale web-pages, but then in the current version of > iceweasel/firefox images looks really ugly.
The upstream fix suggests this only really works well with cairo >= 1.9.2. With earlier versions, it doesn't use XRender, which would make it slow and CPU sucky. Mike -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
