Adding Opera (3DO) as emulation core in Bizhawk

[SergioMartin86]

• Add temporary .3do-bin based CD-ROM loading
• Add proper CD reading callbacks
• Add video buffer getting
• Add sound
• Add gamepads
• Add mouse
• Add settings
• Add input mnemonics
• Add drive access light callbacks
• Add mem domains
• Add SaveRAM
• Add IRegionable
• Add FlightStick
• Add Lightgun
• Add Arcade Lightgun
• Add Trackball
• Add Flight Stick
• Load Font ROMS
• Add input poll reading (red lag frames vs input read frames)
• Allow any bios loading (currently limited to what the core recognizes)
• Use proper mouse deltas
• Add default inputs for mouse (‎Assets/defctrl.json)
• Add multi-disc support
• Rename all instances of _3DO to Panasonic3DO
• Add Opera submenu to console configuration menu
• Fix joystick mapping

Check if completed:

• I have run any relevant test suites
• I, the committer, have read the licensing terms for contributors (last updated 2024-06-22) and am compliant

[vadosnaprimer]

For controller images we use actual photos.

The only one in public domain I could find is this GoldStar one https://commons.wikimedia.org/wiki/File:3DO-101M-Controller.jpg

There are Panasonic controller photos but they are creative-commons-share-alike, which is not compatible with us.

[vadosnaprimer]

I think for places where we show the core name as a string to the user, "3DO" is better than "Panasonic3DO". It wasn't exclusive to Panasonic, and there's no problem in starting strings with a digit.

[YoshiRulz]

Besides my one comment here, code LGTM.

[YoshiRulz]

I think for places where we show the core name as a string to the user, "3DO" is better than "Panasonic3DO". It wasn't exclusive to Panasonic, and there's no problem in starting strings with a digit.

Is that not the case already? The core name is Opera, the sysID (which I assume you meant) I was looking at the diff here but it doesn't add the sysID because it was added before! It is indeed Panasonic3DO. We should be able to change that and not break anything. Anyway the system long name is 3DO, and the firmware group name is 3DO / 3DO Arcade / 3DO M2, which are intended for display. The raw sysID should only appear in movies etc. and I think the Multi-Disk Bundler.

[SergioMartin86]

I think for places where we show the core name as a string to the user, "3DO" is better than "Panasonic3DO". It wasn't exclusive to Panasonic, and there's no problem in starting strings with a digit.

Is that not the case already? The core name is Opera, the sysID (which I assume you meant) I was looking at the diff here but it doesn't add the sysID because it was added before! It is indeed Panasonic3DO. We should be able to change that and not break anything. Anyway the system long name is 3DO, and the firmware group name is 3DO / 3DO Arcade / 3DO M2, which are intended for display. The raw sysID should only appear in movies etc. and I think the Multi-Disk Bundler.

There was a remaining place that said "Panasonic3DO", but I now fixed it:

Resolved