Desktop zoom "nearest" texture filter does not work after version 4.13.1 (patch)

Submitted by Juha Aatrokoski

Assigned to Olivier Fourdan @olivier

Link to original bug (#15676)

Description

Created attachment 8719 Fix texture filter patch

Between versions 4.13.1 and 4.13.2 the GL_NEAREST filter (used on the deepest levels of desktop zoom) stopped working, and GL_LINEAR was used instead. Looking at the diff between the version and with a bit of trial I found the culprit and the fix (patch attached).

A quick internet search led me to this: https://stackoverflow.com/questions/12363463/when-should-i-set-gl-texture-min-filter-and-gl-texture-mag-filter

If I understand the answer correctly, both GL_TEXTURE_MIN_FILTER and GL_TEXTURE_MAG_FILTER must be specified for either of them to take effect (seems like the settings are added to a "shadow" settings object, from which they are latched to the actual texture only when the whole set is valid/complete).

Patch 8719, "Fix texture filter patch":
xfwm4_fix_texture_filter.patch

Version: GIT Master