[jonfryd]

[*]CAdvancedSettings: add <glmipmapping> (bool) (05297da6)
[*]CGLTexture: perform trilinear filtering if enabled (b1aeaed8)

See PR:8409

An advancedsetting.xml file like:

Code:

<advancedsettings>
    <glmipmapping>true</glmipmapping>
</advancedsettings>

will enable mipmapping. In theory it will probably slow down the gui a little and may improve the quality of posters (particularly ones that have been resized down).
Feel free to try and report back if you can see a difference.

Thanks for your help, popcornmix. Mipmapping very noticeably improves the rendering quality when browsing pictures which need to be scaled down (especially in slideshow mode), i.e. pixelation is reduced quite a lot for high-frequency areas. For those interested in actual examples, please check the PR link.