HQX and scale2x filters edit: Now with OpenGL shaders

[hmaon]

After getting all the FPS I could for now out of the game, I've taken steps to make it slower instead. That is, HQX and Scale2x filters are now an option with this code: https://github.com/hmaon/OpenXcom/tree/remix

The results are a little weird but kind of nice at times. Screenshots attached!

edit: OpenGL stuff in a reply below somewhere

[Daiky]

Yeah, that's the kind of effect you get from HQX, I made a topic about it ages ago: https://openxcom.org/forum/index.php/topic,118 with a screenshot, and because nobody really liked it, it was never implemented.
But since then the community has grown, the chances are there are a few people out there that might like it... I'm not sure I would ever use it, it gives freaky results sometimes.

I think it's because the native resolution, sprites of 32x40 px, is just a bit too low for scalers to make something out of it. They look a lot better on old games that just have tiny bit more resolution and natively run on 640x480 and up.

[MrWigggles]

The softening effect, makes it look more blurry to me, then the defaults now. I find the default for now having more details and better definition.

[anonilsus]

Since I actively requested HQX and already compiled and played the branch: I really like it.
Besides the subjective point of view it is also good to have from a technical standpoint since modding is planned and they CAN get to a slightly higher pixel resolution.

[hmaon]

That's about the response I expected.  At least a couple of people like it though so the relatively small effort was worth it to me.

As someone request on IRC, I'll try to add another option -- hq2x at 4x scale. Then also maybe 2xSAI.

[Fenyő]

I don't see what is the problem here.
Just make it optional with an identifier in the options.cfg, and turn it off by default.
And if someone likes it, he/she turns it on in the options.cfg.

[hmaon]

*shrug*

Yes, the filters are already controlled by options in the config file.

[pmprog]

Looks good. I might have a fiddle around with them before my next LP episode

[hmaon]

I've copied the OpenGL output code from bsnes and jammed it into OXC. It's faster than scaling the image on the CPU and it trivially allows the use of a bunch of shaders from other authors. I'm attaching some screenshots. Some are nice and subtle, like Scale4xHQ, while others are ugly as hell (bloom!)

[hmaon]

Only 5 attachments per post?!?!?!? This is an outrage!

[luke83]

Looking good , i cant wait until this is a standard feature