Add bilinear filtering option and integrate with Defaults reset

[rgdilisio]

This PR introduces bilinear filtering for textures in OpenFodder using SDL_SetTextureScaleMode() (SDL v3)

• Bilinear Filtering toggle is applied during cWindow:RenderAt() and cWindow:RenderShrunk()
• Added --bilinear for CLI processing
• Added toggle in Options menu
• Integrated with Save Ini and Defaults reset (resets to nearest which acts as bilinear=OFF )
• Integrated bilinear=false/true option within openfodder.ini

Tested locally on Bazzite using a Fedora toolbox with SDL3 build, works as expected.
Happy to make changes and adjustments as needed!

Bilinear OFF

Bilinear ON

--bilinear in CLI params

[segrax]

Thanks!

Can you do me one favor, just remove the
// Bilinear filtering

comments from before/after the changes

[rgdilisio]

Thanks!

Can you do me one favor, just remove the // Bilinear filtering

comments from before/after the changes

Done, thank you Sir!

[rgdilisio]

Added F10 as hotkey to toggle bilinear filtering on the fly (similar as F11 for toggle window mode)

[segrax]

Added F10 as hotkey to toggle bilinear filtering on the fly (similar as F11 for toggle window mode)

F10 is already one of the cheat keys 😆
im planning on adding an F key to bring up the options menu soon, but im currently in the process of making a rather large change in the 'multi' branch which is due to merge any day now...

so i'll merge the other change, but we need to fix the F key overlap, but if you want.. you could do the options menu popup (although i recommend working from the multi branch.. it kinda got carried away.... alot of stuff is changing)

[rgdilisio]

Added F10 as hotkey to toggle bilinear filtering on the fly (similar as F11 for toggle window mode)

F10 is already one of the cheat keys 😆 im planning on adding an F key to bring up the options menu soon, but im currently in the process of making a rather large change in the 'multi' branch which is due to merge any day now...

so i'll merge the other change, but we need to fix the F key overlap, but if you want.. you could do the options menu popup (although i recommend working from the multi branch.. it kinda got carried away.... alot of stuff is changing)

My bad, it worked great for me since I do not use cheats but yeah I've noticed it by reading the Readme.md :p

Sure thing I can remap to F8 (if available). I'll promise I'll do a find in all files this time :)

Just to confirm do you want me to rebase this PR to multi branch after fixing the F key?

I'll give it a try to add an F hotkey for the options menu too but not sure if I can get these 2 things together

[segrax]

My bad, it worked great for me since I do not use cheats but yeah I've noticed it by reading the Readme.md :p

😆 me either, they where meant for debugging.. but have been in so long now that i cant really remove them (altho the dos version did have cheat codes too, they where actually a pain to enable)

Just to confirm do you want me to rebase this PR to multi branch after fixing the F key?

yeah probably the easiest option, im planning to merge it hopefully by late next week, pretty busy atm

[rgdilisio]

My bad, it worked great for me since I do not use cheats but yeah I've noticed it by reading the Readme.md :p

😆 me either, they where meant for debugging.. but have been in so long now that i cant really remove them (altho the dos version did have cheat codes too, they where actually a pain to enable)

Just to confirm do you want me to rebase this PR to multi branch after fixing the F key?

yeah probably the easiest option, im planning to merge it hopefully by late next week, pretty busy atm

No worries Sir! I've done the rebase and recompiled over here (I'm on bazzite using toolbox).
It works with some flaws such as now no openfodder.ini seems to be saved and new Keys option within Select Campaign goes blank when chosen and hitting ESC quickly shows something to end up in a Segmentation Fault :(

I will take a closer look later this week to see what I can find out