shaders/sampling: don't pack ortho sampling lut into 4 components

This ensures that we correctly interpolate lut values and not skip adjacent values. Also fixes interpolating with garbage padding values.

This commit fixes the fast path of orthogonal scaling.

Fixes: https://github.com/mpv-player/mpv/issues/13998

mentioned in merge request !680 (merged)

added 1 commit

• 1ea95619 - shaders/sampling: don't pack ortho sampling lut into 4 components

Compare with previous version

Ok, we don't want to do any interpolation on lut, so completely not needed changes.

closed