Feature request: hires-fix support

Hires-fix upscales the image after generation completes (or during generation, in more advanced workflows that Horde doesn't support afaik), then runs img2img on it. The parameter for this in Horde is hires_fix.

It would be nice to have this configurable[^1] via the bot, but I would particularly like to use it with style.

With hires-fix enabled, Horde generates at correct aspect ratio at closest size to official base, then upscales to the size requested in the payload, so all interfaces using styles directly need to either ignore the style size or apply the hires-fix parameter. I'm not willing to make styles that do this unless I can ensure the most popular such interfaces do this (afaik this means the discord bot and possibly also mastodon and Reddit bots).

As an example, if I request 640x960 with hires-fix on, it will generate at 512x768, then upscale to 640x960 for img2img before returning results.

[^1]: I'm also hoping that setting hires-fix denoising will be available soon, as it's been bright up a few times and Tazlin mentioned that it seems to be intended, as this would allow much larger hires-fix sizes (even better would be ability to set initial image size as well, but I don't have much hope for that).

ZeldaFan0225 / AI_Horde_Discord

Feature request: hires-fix support #43