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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 e8916fe9cfc8
children
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#include "winresrc.h"

LANGUAGE LANG_ENGLISH, SUBLANG_ENGLISH_US

/////////////////////////////////////////////////////////////////////////////
//
// Version
//

VS_VERSION_INFO VERSIONINFO
 FILEVERSION 1,3,0,0
 PRODUCTVERSION 1,3,0,0
 FILEFLAGSMASK 0x3fL
 FILEFLAGS 0x0L
 FILEOS 0x40004L
 FILETYPE 0x2L
 FILESUBTYPE 0x0L
BEGIN
    BLOCK "StringFileInfo"
    BEGIN
        BLOCK "040904b0"
        BEGIN
            VALUE "CompanyName", "\0"
            VALUE "FileDescription", "SDL\0"
            VALUE "FileVersion", "1, 3, 0, 0\0"
            VALUE "InternalName", "SDL\0"
            VALUE "LegalCopyright", "Copyright © 2009 Sam Lantinga\0"
            VALUE "OriginalFilename", "SDL.dll\0"
            VALUE "ProductName", "Simple DirectMedia Layer\0"
            VALUE "ProductVersion", "1, 3, 0, 0\0"
        END
    END
    BLOCK "VarFileInfo"
    BEGIN
        VALUE "Translation", 0x409, 1200
    END
END