Would you like to play Nokia (J2ME) games on Retropie?

Hex

@recompile Joystick handling is a tad bit complicated. I will do it tomorrow. Its 1:30 am here in LA.

I played the game Shadow Walker and I must say we have come a long way :)

If you want you can update C from dropbox and test it out. I have migrated the byte array "out" to vector.

Let us refresh things on our todo list. Please append if I forgot anything.

Todo :

Gamepad support
Joystick support (optional; Long term)
Audio support
Hide Game's log output (optional)
m3g support (long term)

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@hex said in Would you like to play Nokia (J2ME) games on Retropie?:

Gamepad support
Joystick support (optional; Long term)

These are the same thing to me. (I use the terms joystick and gamepad interchangeably) As you're differentiating between them, when I say "joystick" I'm thinking of a gamepad.

I'd like to also add m3g support. That'll be a while.

Hex

Yea for me Game pad is SNES controller (Dpad ABXY LR). Joystick are the two analog sticks on Xbox controller

what is m3g?

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@hex m3g is the Mobile 3D Graphics API from JSR 184. Some later games used this, like The Sims 3 and X-Men Origins: Wolverine.

Allanbuzzy

Would the N-Gage use the same architecture as J2ME? I saw a video that showed a N-Gage game playing on a Nokia N70 using emulation.

Stuart2773

@allanbuzzy

from what i can remember from owning an n70, n95 & ngage back in the day, im sure they were symbian based,

cant wait to try this when its ready, so glad i kept a backup of all the java/ngage games i must have in the region of about 1000 for various mobile devices.

N.A.R.E.K.96

I would like to play old cell phone games and also game for Nokia N-Gage they were great!

Hex

J2ME is not symbian emulator. So no you cannot play symbian games.

@recompile I have different pixel interpolation methods while scaling. Would you be interested in testing those out? We can expose this in config if necessary.

// Change this line. Valid values :  "nearest", "linear", "best"
SDL_SetHint(SDL_HINT_RENDER_SCALE_QUALITY, "nearest");
// Linear is pixelated, no interpolation
// Linear is Bilinear interpolation
// Best is anisotropic interpolation

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@allanbuzzy said in Would you like to play Nokia (J2ME) games on Retropie?:

Would the N-Gage use the same architecture as J2ME?

The N-Gage could run j2me games, but the few N-Gage specific games I have are all Symbian native. From what I remember, however, there weren't too many exclusive games released for the short-lived console. Asphalt Urban GT and Splinter Cell: Chaos Theory, for example, saw both j2me and Symbian releases, though the j2me releases often supported higher resolutions than the 176x208 you got on the N-Gage.

For j2me games made for Nokia phones or the N-Gage, I've already added full support for the Nokia UI API.

Allanbuzzy

@recompile said in Would you like to play Nokia (J2ME) games on Retropie?:

@allanbuzzy said in Would you like to play Nokia (J2ME) games on Retropie?:

Would the N-Gage use the same architecture as J2ME?

The N-Gage could run j2me games, but the few N-Gage specific games I have are all Symbian native. From what I remember, however, there weren't too many exclusive games released for the short-lived console. Asphalt Urban GT and Splinter Cell: Chaos Theory, for example, saw both j2me and Symbian releases, though the j2me releases often supported higher resolutions than the 176x208 you got on the N-Gage.

For j2me games made for Nokia phones or the N-Gage, I've already added full support for the Nokia UI API.

So N-Gage is supported? Awesome, that's good.

Hex

@Allanbuzzy I dont think he is saying that. Symbian deppends on Nokia UI, J2ME depends on Nokia UI. @recompile has added full support for Nokia UI.

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@hex Sure. I can pass it to C as an additional parameter. From the command line, I'll accept: jar | jar width height | jar filter | jar width height filter but always pass C width height filter

Defaults are 240 320 nearest, but C doesn't need to know that.
http://drichardson-shared.s3.amazonaws.com/freej2me-rpi.jar

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@allanbuzzy said in Would you like to play Nokia (J2ME) games on Retropie?:

So N-Gage is supported? Awesome, that's good.

Let me try that again. The N-Gage could run j2me and Symbian games. This project will only support j2me games. Symbian games will not work. Nokia had their own special api for games, which is fully supported, so j2me games written for the N-Gage will work. Again, Symbian games written for the N-Gage will not work.

Hex

@recompile I have updated the C source to add support for interpolation/filter type .

J doenst need to pass default (nearest) if not user specified. I can handle that in C

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@hex said in Would you like to play Nokia (J2ME) games on Retropie?:

J doenst need to pass default (nearest) if not user specified. I can handle that in C

I know, but it's simpler for me to always pass something than to only pass it sometimes. I figured it would be simpler for you, as you can always expect 3 arguments. I like simple.

Hex

@recompile Will you be available for an hour or so for Gamepad testing?

Do I need to support multiple gamepads or a single gamepad would suffice.

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@hex One should be enough. I don't know of any two-player simultaneous games for old cellphones.

I'll be around for testing.

Hex

@recompile I have added gamepad support. Can you test it.

Analog Joystick data is ignored.

Allanbuzzy

I would've liked the idea of N-Gage emulation, but oh well I hope someone writes a Symbian emulator.

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@hex I'm not getting anything from either gamepad.