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Fixed bug #1056 (Frequent crashes in Touch events by simply touching the screen)
Joseba GarcĂa Echebarria 2010-12-15 01:55:22 PST
I believe the crash is caused by a check not being performed on wether an
SDL_Touch element is NULL before using it in the SDL_SendTouchMotion function
in src/events/SDL_touch.c around line 400.
Judging from the rest of the code, there's a missing
if (!touch) {
return 0;
}
before using "touch" as SDL_GetFinger(), SDL_GetFingerIndexId() use
touch->num_fingers without checking.
I can attach a patch if you like. It seems pretty straightforward, though.
I have yet to discover why touch is being returned as NULL as this error is
only triggered when an actual gesture has been performed, maybe something
related to SDL_AddTouch()?
author | Sam Lantinga <slouken@libsdl.org> |
---|---|
date | Fri, 28 Jan 2011 10:21:58 -0800 |
parents | 22ac66da0765 |
children |
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SDL Automated Testing Framework User Documentation by Edgar Simo Serra Abstract The SDL Automated Testing Framework, hereby after called SDL_AT, is a meant to test the SDL code for regressions and other possible failures. It can also be used to display what your SDL set up supports. Basics The main way to use the framework is to compile it and run it, that can be done with the following command: $> make test It should then display something like: Platform : All tests successful (2) SDL_RWops : All tests successful (5) SDL_Surface : All tests successful (6) Rendering with x11 driver : All tests successful (4) Indicating that all tests were successful. If however a test fails output it will report the failure to stderr indicating where and why it happened. This output can then be sent to the developers so they can attempt to fix the problem. Advanced By passing the "-h" or "--help" parameter to testsdl you can get an overview of all the possible options you can set to furthur tweak the testing. A sample of the options would be the following: Usage: ./testsdl [OPTIONS] Options are: -m, --manual enables tests that require user interaction --noplatform do not run the platform tests --norwops do not run the rwops tests --nosurface do not run the surface tests --norender do not run the render tests -v, --verbose increases verbosity level by 1 for each -v -q, --quiet only displays errors -h, --help display this message and exit Developers See SDL_at.h for developer information.