Homebrew RetroArch Switch

delta nite · Jun 2, 2020

kristianity77 said:
I go in to drivers on the main screen and go down to video driver and it gives me the option of GL, switch or null and that's it. Is it also selectable from elsewhere?

I had a similar problem. I believe this happened due to you keeping the same config file after updating. At some point the driver structure was refactored and started conflicting with your configuration.
You should delete your config file and let Retroarch generate another one.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
Iirc, the driver should be "gl", and audio should be either "switch_thread" or "audren_thread" for the best performance.

I used to have it set to GL but that's what is causing the stutter to which m4xw suggested going over to switch video driver because the gl driver had issues with certain cores causing stutter. But I cannot get the switch video core no matter what I do to display on anything other than a tiny box in the top corner that's my issue.

Edit..

I've deleted the config file many times whilst switching between different builds of retroarch and it makes no difference.

ShadowOne333 · Jun 2, 2020

kristianity77 said:
I used to have it set to GL but that's what is causing the stutter to which m4xw suggested going over to switch video driver because the gl driver had issues with certain cores causing stutter. But I cannot get the switch video core no matter what I do to display on anything other than a tiny box in the top corner that's my issue.

Edit..

I've deleted the config file many times whilst switching between different builds of retroarch and it makes no difference.

What version are you using exactly?

kristianity77 · Jun 2, 2020

ShadowOne333 said:
What version are you using exactly?

I tried one of the latest nightlies from about a week ago but now I'm on the latest stable 1.8.8

ShadowOne333 · Jun 2, 2020

kristianity77 said:
I tried one of the latest nightlies from about a week ago but now I'm on the latest stable 1.8.8

Download the latest nightly from the buildbot:
buildbot.libretro.com/nighly/nintendo/switch/libnx

Get the one from the most recent date.
Once you have that, rename your retroarch folder to something like "retrobak" and copy everything from the zip into your SD, then try booting RA and see what happens.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
Download the latest nightly from the buildbot:
buildbot.libretro.com/nighly/nintendo/switch/libnx

Get the one from the most recent date.
Once you have that, rename your retroarch folder to something like "retrobak" and copy everything from the zip into your SD, then try booting RA and see what happens.

I can get it to go full screen (or other sizes) if I turn bilinear filtering off. If I turn it on, then it's just a tiny image in the top left. (This is all with switch video driver). It maybe a limit of the switch driver setting bit also in this setting I cannot choose video overlays (they don't do anything when I picke them nor shaders (the option for them vanishes)

Like I said the stutter in GL for video only affects SNES emulators that I can see (snes9x and bsnes) but it plays fine with other cores I've tried

ShadowOne333 · Jun 2, 2020

kristianity77 said:
I can get it to go full screen (or other sizes) if I turn bilinear filtering off. If I turn it on, then it's just a tiny image in the top left. (This is all with switch video driver). It maybe a limit of the switch driver setting bit also in this setting I cannot choose video overlays (they don't do anything when I picke them nor shaders (the option for them vanishes)

Like I said the stutter in GL for video only affects SNES emulators that I can see (snes9x and bsnes) but it plays fine with other cores I've tried

So with GL it works with all cores except SNES?
That's weird, I have 1.8.8 and SNES is working fine for me.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
So with GL it works with all cores except SNES?
That's weird, I have 1.8.8 and SNES is working fine for me.

It works with SNES, just not without video stutter, frame pacing issues or whatever you call it. Try a game where it's easy to spot the stutter, like Mario kart title screen. Let it run for a minute or two, and the stutter will creep in, and it stays

--------------------- MERGED ---------------------------

If you want a surefire way to spot it. Load up a game called equinox. Press start on the title screen to bring up the choose game menu and just watch the clouds float by. Within 30 seconds you'll get horrible frame pacing issues when isn't there on retroarch on android, nor on pc

Edit
YouTube video showing issue (watch at 60fps to make it easy to spot)

ShadowOne333 · Jun 2, 2020

kristianity77 said:
It works with SNES, just not without video stutter, frame pacing issues or whatever you call it. Try a game where it's easy to spot the stutter, like Mario kart title screen. Let it run for a minute or two, and the stutter will creep in, and it stays

--------------------- MERGED ---------------------------

If you want a surefire way to spot it. Load up a game called equinox. Press start on the title screen to bring up the choose game menu and just watch the clouds float by. Within 30 seconds you'll get horrible frame pacing issues when isn't there on retroarch on android, nor on pc

Edit
YouTube video showing issue (watch at 60fps to make it easy to spot)

Seems to be an issue with the driver, not really Retroarch nor the core itself:
https://github.com/libretro/RetroArch/issues/10109

It's already documented, so it's an already known issue, though not one that has been fixed yet.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
Seems to be an issue with the driver, not really Retroarch nor the core itself:
https://github.com/libretro/RetroArch/issues/10109

It's already documented, so it's an already known issue, though not one that has been fixed yet.

That's pretty much what I figured. It's just a shame in this instance then that we cant use at least overlays or bilinear filtering on the switch video driver to make the games look less ugly

ShadowOne333 · Jun 2, 2020

kristianity77 said:
That's pretty much what I figured. It's just a shame in this instance then that we cant use at least overlays or bilinear filtering on the switch video driver to make the games look less ugly

Does it happen only with filtering or overlays?

kristianity77 · Jun 2, 2020

ShadowOne333 said:
Does it happen only with filtering or overlays?

On the switch driver?

If so, yes. If I turn off bilinear filtering and have a basic image, it will fill the screen (or whatever aspect ratio I decide). But as soon as I turn bilinear filtering on the image goes to the top left corner, filling only about 10 percent of the screen. And video overlays ( like scanlines etc) just don't do anything at all even though retroarch menus says they are on

ShadowOne333 · Jun 2, 2020

kristianity77 said:
On the switch driver?

If so, yes. If I turn off bilinear filtering and have a basic image, it will fill the screen (or whatever aspect ratio I decide). But as soon as I turn bilinear filtering on the image goes to the top left corner, filling only about 10 percent of the screen. And video overlays ( like scanlines etc) just don't do anything at all even though retroarch menus says they are on

That's really weird.
I have never used that driver, I always use GL for all cores and never had such an issue.
But then again, I don't use filters nor overlays at all, I use the clean output since I really don't like bilinear, so that might be why I haven't experienced them.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
That's really weird.
I have never used that driver, I always use GL for all cores and never had such an issue.
But then again, I don't use filters nor overlays at all, I use the clean output since I really don't like bilinear, so that might be why I haven't experienced them.

Well with GL , you get the stutters on SNES emulators even if you have a clean image with no filters, no shaders, no anything. It's ever present but I guess some notice it and some don't. I could always try psnes I guess but it would have been nice to configure retroarch for everything.

ShadowOne333 · Jun 2, 2020

kristianity77 said:
Well with GL , you get the stutters on SNES emulators even if you have a clean image with no filters, no shaders, no anything. It's ever present but I guess some notice it and some don't. I could always try psnes I guess but it would have been nice to configure retroarch for everything.

You can easily change what core runs what game under playlists options.
So you can switch all your SNES games to run under another core with no problem.

kristianity77 · Jun 2, 2020

ShadowOne333 said:
You can easily change what core runs what game under playlists options.
So you can switch all your SNES games to run under another core with no problem.

Is psnes a core in retroarch? I couldn't see it

ShadowOne333 · Jun 2, 2020

kristianity77 said:
Is psnes a core in retroarch? I couldn't see it

PSNES is not available for Switch, but there are other Snes cores to choose from, like BSNES, Mesen and Snes9x2010.
Not sure if there are others, but at least you can try those.

VectorSux · Jun 2, 2020

Is there any way to set the clock speed depending on if it's docked or not?

hippy dave · Jun 2, 2020

Anyone tried the Pushmo/Pullblox series on citra core? I've been getting urges to play them again.

steven89 · Jun 3, 2020

does anyone know if a core exists to play pc98 games? aka touhou, if not is there another way play them on switch?

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