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Graphics / Getting (reproducible) crash on font size changes
« on: March 21, 2023, 06:51:27 pm »
Hi, I'm new here, and fairly new (2 months) to SFML itself, too.
I've been tinkering with a simple GUI lib (forked Alexandre Bodelot's `sfml-widgets` + ported to SFML3 + lots of other changes) for a few weeks.
Everything's been fine, but in the demo app, where I have a theme font size slider, I've been seeing a crash on changing it to certain sizes. (Not the largest, for example.)
I get no error messages whatsoever, earlier it didn't crash either, but resulted in completely collapsed (but recoverable) font rendering, as in this screenshot:
(Notice how some of the text, with constant font size, is not affected.)
When I could catch it in a debugger, there was an access violation exception due to texture size, deep down in sf::Text / sf::Font, but haven't yet investigated it fully.
I'd like to ask for some advice first: does this look/feel/sound familiar to anyone? (SFML devs, especially, if anyone's seeing this.) Does it smell like misuse (albeit I've been doing pretty standard & trivial stuff), or rather a bug in the lib, by your gut feeling?
Please see the details of my investigation so far at the related GH issue: https://github.com/xparq/sfw/issues/196.
Your insights may help pick the right strategy for further debugging. Thanks!
I've been tinkering with a simple GUI lib (forked Alexandre Bodelot's `sfml-widgets` + ported to SFML3 + lots of other changes) for a few weeks.
Everything's been fine, but in the demo app, where I have a theme font size slider, I've been seeing a crash on changing it to certain sizes. (Not the largest, for example.)
I get no error messages whatsoever, earlier it didn't crash either, but resulted in completely collapsed (but recoverable) font rendering, as in this screenshot:
(Notice how some of the text, with constant font size, is not affected.)
When I could catch it in a debugger, there was an access violation exception due to texture size, deep down in sf::Text / sf::Font, but haven't yet investigated it fully.
I'd like to ask for some advice first: does this look/feel/sound familiar to anyone? (SFML devs, especially, if anyone's seeing this.) Does it smell like misuse (albeit I've been doing pretty standard & trivial stuff), or rather a bug in the lib, by your gut feeling?
Please see the details of my investigation so far at the related GH issue: https://github.com/xparq/sfw/issues/196.
Your insights may help pick the right strategy for further debugging. Thanks!