Homebrew blargSnes -- SNES emulator for the 3DS (WIP)

[Arisotura]

On this board, just saying my name with a @ before it would have worked

 

[DiscostewSM]

The issue with that though, is that the software renderer can't just plot pixels wherever it wants, because it's scanline-based (basically, at regular intervals it's told to render 256 pixels on a given scanline).

I'd need to look up which tiles would be landing into the current scanline given their offset. Not exactly trivial.

And that's exactly what the method I provided does. It processes what pixel/tile gets placed at the current spot of the renderer, horizontally and vertically, so whether the renderer is working from left-to-right by pixel, and top-to-bottom by scanline (as the SNES renderer operates), or some other way (so long as all the information for each scanline like BG layer positioning is preserved), it should work.

Perhaps I should have pointed out that the variable Y is the scanline, and memory registers like BG3HOFS and whatnot are based on the information set for that particular scanline. That may clear some things up.

 

[LWares87]

StapleButter: Keep up the good work and i'm personally looking forward to the new release.

Edit: Just curious to ask... will the new release support sound for GW3DS, with regards to the .cia version?

 

[Xeonhawk]

Uhmm?... You can run GBC and GB Games... With Ninjhax Ive been doing it since the day after the ninjhax Release https://gbatemp.net/threads/gameyob-3ds-gb-c-emu.372523/ Use the ninjhax version.

Unless I misunderstood?

No you can't, right now there's only a choppy emulator. Not an emulator that runs off the system's VC.

 

[alexenochs]

No you can't, right now there's only a choppy emulator. Not an emulator that runs off the system's VC.

Maybe your using a really old build because the latest pretty much plays every gbc game at full speed with sound in fact I don't recall the first build for the 3ds even having frame problems also if there were an emulator that ran from the vc system you wouldn't see it here if you want perfect emulation inject a game into a vc

 

[y03usw6e]

StapleButter, I just want to say thank you for being so active and constantly keeping us in the loop. So far, blargSNES is the only homebrew emulator/game that's actually worth using (in my opinion).

 

[emupaul]

havn't been around since the wii homebrew scene. This sparked my interest.

 

[Doran754]

A .cia version with sound would be perfect, can't wait for that to drop.

 

[Arisotura]

CIA version is planned, as well as 3DSX, 3DS, ELF, EXE, GTA, NDS and every other format possible.


Release is coming soon. However, while the hardware renderer is performant, it's not as fast as it could be, so there might be frameskip in some demanding games.

The speeds I measured aren't even close to half the advertised performance of the PICA200. Three theories could explain that:

* many of the graphics data is in main RAM, which is causing contention when both CPU and GPU try accessing the main RAM (and it is likely that the CPU has priority)
* the GPU is initialized in some low-power mode that causes it to be downclocked
* render config changes are expensive

If it's the third one, we're fucked.

I'll try putting the graphics data in VRAM for a further release and see if that helps.

 

[st4rk]

CIA version is planned, as well as 3DSX, 3DS, ELF, EXE, GTA, NDS and every other format possible.


Release is coming soon. However, while the hardware renderer is performant, it's not as fast as it could be, so there might be frameskip in some demanding games.

The speeds I measured aren't even close to half the advertised performance. Three theories could explain that:

* many of the graphics data is in main RAM, which is causing contention when both CPU and GPU try accessing the main RAM (and it is likely that the CPU has priority)
* the GPU is initialized in some low-power mode that causes it to be downclocked
* render config changes are expensive

If it's the third one, we're fucked.

I'll try putting the graphics data in VRAM for a further release and see if that helps.

I like GTA Format.

 

[ShadowOne333]

CIA version is planned, as well as 3DSX, 3DS, ELF, EXE, GTA, NDS and every other format possible.

Does that mean that both CIA and 3DS formats will support sound too by default? Or only the CIA one?

 

[Arisotura]

All the versions will try to use CSND. Sound support depends on whether your setup has CSND access, not on which version is used.

 

[piratesephiroth]

Yeah, it doesn't look like games on the red cart have CSND access, I know at least homebrew doesn't. I never found any retail rom that uses it so I can't confirm it's entirely blocked.

 

[Arisotura]

Retail games always use the DSP.

CSND isn't meant to be used by games, as evidenced by its simplicity. I'm not even sure you can do things like stereo panning. This is an issue with current blargSNES in that the left and right channels come out on both speakers instead of being properly separated.

 

[VinsCool]

Keep up the good work you're doing StapleButter !

 

[piratesephiroth]

If someone wants to try a CIA version with sound, here's one compiled by myself.

Note that it's not as stable as the .3DS version uploaded by StapleButter and it's been uploaded by me, not him.
So if any game runs fine, thank him. If any game looks broken don't complain because he didn't release this in the first place because he thinks it's not ready for release anyway.
I'm uploading it because there's no other CIA option available.

By the way, it seems they fixed the sound issue in ctrulib. I was getting a crash when loading the games when I built it with ctrulib 0.1.0 (only the screen was black instead of white like in GameYob)
I updated to the latest version today and games are running fine with sound.

 

[VinsCool]

If someone wants to try a CIA version with sound, here's one compiled by myself.

Note that it's not as stable as the .3DS version uploaded by StapleButter and it's been uploaded by me, not him.
So if any game runs fine, thank him. If any game looks broken don't complain because he didn't release this in the first place because he thinks it's not ready for release anyway.
I'm uploading it because there's no other CIA option available.

By the way, it seems they fixed the sound issue in ctrulib. I was getting a crash when loading the games when I built it with ctrulib 0.1.0 (only the screen was black instead of white like in GameYob)
I updated to the latest version today and games are running fine with sound.

Hi, could you build a .3dsx too? I only get compile errors.

 

[williamcesar2]

BlargSnes CIA version run on CFW ?

 

[piratesephiroth]

BlargSnes CIA version run on CFW ?

yes, should run fine on the CFW

Hi, could you build a .3dsx too? I only get compile errors.

I'm a Gateway user so you're on your own.

 

[placebooooo]

If someone wants to try a CIA version with sound, here's one compiled by myself.

Note that it's not as stable as the .3DS version uploaded by StapleButter and it's been uploaded by me, not him.
So if any game runs fine, thank him. If any game looks broken don't complain because he didn't release this in the first place because he thinks it's not ready for release anyway.
I'm uploading it because there's no other CIA option available.

By the way, it seems they fixed the sound issue in ctrulib. I was getting a crash when loading the games when I built it with ctrulib 0.1.0 (only the screen was black instead of white like in GameYob)
I updated to the latest version today and games are running fine with sound.

May I ask how you converted it? Every time I tried I kept getting errors.