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Fixed bug #1056 (Frequent crashes in Touch events by simply touching the screen) Joseba García 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 5cb6424a5676
children
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230b156829ed13b31134d96f689c917981f57b84 release-1.2.5
27cab50ec9c746e886ce0f3fdaa0b0cdc55a594f release-1.2.11
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f14cf9d71233934811774f941d0de121d5f96ccf release-1.2.14
39c22a953456f6c9e2c8993c8ff973824104102a pre-touch-removal