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CE-Programming / CEmu

Third-party TI-84 Plus CE / TI-83 Premium CE emulator, focused on developer features
https://ce-programming.github.io/CEmu/
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Warning when dragging screen to browser/file manager/picture viewer... #371

Closed PrivacyDragon closed 4 months ago

PrivacyDragon commented 3 years ago

What's wrong, and with what software version?

Operating System: Linux, OpenSuse Leap 15.1 CEmu version: 1.3
Issue:
When I drag the screen into my browser, file manager or picture viewer, I get a big warning in the terminal. It's like three lines of six times "WARNING!!!" The browser I use is: Firefox The file manager I use is: Dolphin The picture viewer I use is: Gwenview

What are the steps to reproduce this issue?

  1. Open CEmu (Of course...)
  2. Open a Browser or filemanager or picture viewer.
  3. Go back to CEmu.
  4. Drag the screen.
  5. Open it on a new browser tabblad, copy it to somewhere via the file manager or drop it in the picture viewer.
  6. Look in the terminal and you'll see a warning.

Any logs, error output, screenshot, other comments...?

Screenshot

adriweb commented 3 years ago

Maybe @Vogtinator can help with that one?

Vogtinator commented 3 years ago

That's from here: https://github.com/qt/qtimageformats/blob/024527e1fa36fbe5f25e0e438d43d11cd15d68de/src/plugins/imageformats/jp2/qjp2handler.cpp#L860

So something tries to write a JPEG2000 file?

adriweb commented 3 years ago

Not as far as I know, hmmm. CEmu captures are either standard PNG (https://github.com/CE-Programming/CEmu/blob/8e31441310ea16d4eb90b2b2cd31bc4ca47115d3/gui/qt/lcdwidget.cpp#L105 wher we use Qt stuff), or animated PNGs (in which case, we use libpng-apng anyway)

Vogtinator commented 3 years ago

I guess the format negotiation for the drag and drop somehow results with image/jpeg2000 getting selected. In Leap 15.2 and up, the jpeg2000 support was dropped from libqt5-qtimageformats, so I can't reproduce it here.

adriweb commented 3 years ago

Interesting, I guess we can force PNG and see how it goes.

PrivacyDragon commented 3 years ago

Well, OpenSuse Leap 15.1 won't be supported in a certain amount of time or something like that (According to my father), so I have to update to Leap 15.2 somewhere in the next months... (well, my father will do that, but that doesn't really matter)

Vogtinator commented 3 years ago

Getting a backtrace at the jas_stream_memopen call should show why exactly it's being called.

adriweb commented 4 months ago

May have been fixed along the years. Also https://github.com/CE-Programming/CEmu/commit/1ce65e8b2b25e3b18804914d367f76586bf3c42c may help too...

To re-open if needed.