Games imported from SCUMMVM can not calculate installation size

[k0zyrev]

Bug Description

Correctly imported SCUMMVM game has installation path that looks like {EmulatorDir}\game\ If I go to Edit Game details->Installations->Install size and click "calculate", the game details window blinks and then nothing happens. In the detail view link that goes to install folder (EmulatorDir}\game) works as intended and opens the correct folder.

To Reproduce

• set up a scummvm game

• import the emulated game via automated procedure (add game->emulated game->scummvm, etc)

• edit game details->installation

• press calculate size

• nothing happens

• if I change installation folder to something like С:\games\game, the size is still not being correctly calculated, but if I delete the "rom" from the roms section which was automatically added and doesn't make sense because it's not a rom, it's regular game files. Then the size is calculated, but the game doesn't start.

Diagnostics ID

b164ead5-08fc-4bde-96ac-bc39593b1126

Screenshots

No response

[JosefNemec]

ROM field is used to calculate game size if present for all emulated games. We have no idea of knowing if the ROM is valid ROM or not. We would have to maintain implementations for install size calculations for each emulator individually which is not realistic thing to do in a project maintained by a single person.

[k0zyrev]

I don't think it's the size calculation that needs to be changed, but the emulator integration itself. Are those integrations already individually implemented?

If scummvm integration configured the game data in a different way, there'd be no problem with size calculation.

I just manually removed the rom from installation tab and added a launch parameter, it works perfectly. If scummvm parser did the same and added full path into installation folder field, size calculation would work.

Of course, if all emulators work on the same template, the problem goes back to individually maintaining those integrations and I understand it's not feasible or not even good architecture choice, I do not know how it works at the moment. Well, might be worth considering for the future feature or something.

upd. after taking a closer look, roughly describing the process, it seems that the integration parses the scummvm config files and then puts the game names into roms section, from which it later uses the rom name as a launch parameter. Question: is it not possible to put those names directly into the launch parameter without the rom field being populated?

[dennisjj5]

The real problem here is that the "ROM" does not actually exist for ScummVM games. So, Playnite is most likely failing due to a file not found error trying to calculate size. Playnite should catch that, and fall back to calculating folder size for ScummVM games

[k0zyrev]

"ROM" does not actually exist

that's the point of what I've written above. SCUMMVM emulator integration seems to depend on having "roms" in the installation tab so it later uses as a launch parameter. If the integration worked differently, there'd be no need for that and size calculation would've worked fine provided it could've properly parse path formatted as "{EmulatorDir}\game"