newImageFont assigns unchangeable 1 pixel of extra spacing

[ericabxy]

Fonts created with love.graphics.newImageFont automatically have 1 pixel of extra spacing. This is different from the default behavior of LÖVE which is 0 extra spacing. Furthermore, Lutro does not recognize the extraspacing argument, so there is no way for content to correct this behavior.

[RobLoach]

Could you provide a test for this?

[ericabxy]

Yes. I wrote a test using a font meant for uniform -1 kerning, demonstrating the results of constructing the font with several different "extraspacing" arguments.

extraspacing.zip

[kivutar]

You're right, I need to fix this.

[ericabxy]

This issue appears to have been fixed by https://github.com/libretro/libretro-lutro/commit/e9395ab4549b74670598d811ca8094be513c4c5c
Running the test file with the latest code using Lutro and LÖVE results in the same behavior in all four test cases.
I'm trying to upload a slightly updated test file in case anyone else needs to test.

[ericabxy]

extraspacing.zip
Here is the new test file. It has no subfolder so be careful when extracting, or simply rename it to extraspacing.love or extraspacing.lutro to use it.