Mercurial > sdl-ios-xcode
view include/SDL_config_windows.h @ 5126:d79ff339d1f2
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 | 455bc74f7034 |
children | e594f07297a9 |
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/* SDL - Simple DirectMedia Layer Copyright (C) 1997-2010 Sam Lantinga This library is free software; you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation; either version 2.1 of the License, or (at your option) any later version. This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License for more details. You should have received a copy of the GNU Lesser General Public License along with this library; if not, write to the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA Sam Lantinga slouken@libsdl.org */ #ifndef _SDL_config_windows_h #define _SDL_config_windows_h #include "SDL_platform.h" /* This is a set of defines to configure the SDL features */ #if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H) #if defined(__GNUC__) || defined(__DMC__) || defined(__WATCOMC__) #define HAVE_STDINT_H 1 #elif defined(_MSC_VER) typedef signed __int8 int8_t; typedef unsigned __int8 uint8_t; typedef signed __int16 int16_t; typedef unsigned __int16 uint16_t; typedef signed __int32 int32_t; typedef unsigned __int32 uint32_t; typedef signed __int64 int64_t; typedef unsigned __int64 uint64_t; #ifndef _UINTPTR_T_DEFINED #ifdef _WIN64 typedef unsigned __int64 uintptr_t; #else typedef unsigned int uintptr_t; #endif #define _UINTPTR_T_DEFINED #endif /* Older Visual C++ headers don't have the Win64-compatible typedefs... */ #if ((_MSC_VER <= 1200) && (!defined(DWORD_PTR))) #define DWORD_PTR DWORD #endif #if ((_MSC_VER <= 1200) && (!defined(LONG_PTR))) #define LONG_PTR LONG #endif #else /* !__GNUC__ && !_MSC_VER */ typedef signed char int8_t; typedef unsigned char uint8_t; typedef signed short int16_t; typedef unsigned short uint16_t; typedef signed int int32_t; typedef unsigned int uint32_t; typedef signed long long int64_t; typedef unsigned long long uint64_t; #ifndef _SIZE_T_DEFINED_ #define _SIZE_T_DEFINED_ typedef unsigned int size_t; #endif typedef unsigned int uintptr_t; #endif /* __GNUC__ || _MSC_VER */ #endif /* !_STDINT_H_ && !HAVE_STDINT_H */ #ifdef _WIN64 # define SIZEOF_VOIDP 8 #else # define SIZEOF_VOIDP 4 #endif #define SDL_HAS_64BIT_TYPE 1 /* Enabled for SDL 1.2 (binary compatibility) */ //#define HAVE_LIBC 1 #ifdef HAVE_LIBC /* Useful headers */ #define HAVE_STDIO_H 1 #define STDC_HEADERS 1 #define HAVE_STRING_H 1 #define HAVE_CTYPE_H 1 #define HAVE_MATH_H 1 #ifndef _WIN32_WCE #define HAVE_SIGNAL_H 1 #endif /* C library functions */ #define HAVE_MALLOC 1 #define HAVE_CALLOC 1 #define HAVE_REALLOC 1 #define HAVE_FREE 1 #define HAVE_ALLOCA 1 #define HAVE_QSORT 1 #define HAVE_ABS 1 #define HAVE_MEMSET 1 #define HAVE_MEMCPY 1 #define HAVE_MEMMOVE 1 #define HAVE_MEMCMP 1 #define HAVE_STRLEN 1 #define HAVE__STRREV 1 #define HAVE__STRUPR 1 #define HAVE__STRLWR 1 #define HAVE_STRCHR 1 #define HAVE_STRRCHR 1 #define HAVE_STRSTR 1 #define HAVE_ITOA 1 #define HAVE__LTOA 1 #define HAVE__ULTOA 1 #define HAVE_STRTOL 1 #define HAVE_STRTOUL 1 #define HAVE_STRTOLL 1 #define HAVE_STRTOD 1 #define HAVE_ATOI 1 #define HAVE_ATOF 1 #define HAVE_STRCMP 1 #define HAVE_STRNCMP 1 #define HAVE__STRICMP 1 #define HAVE__STRNICMP 1 #define HAVE_SSCANF 1 #define HAVE_M_PI 1 #define HAVE_ATAN 1 #define HAVE_ATAN2 1 #define HAVE_CEIL 1 #define HAVE_COPYSIGN 1 #define HAVE_COS 1 #define HAVE_COSF 1 #define HAVE_FABS 1 #define HAVE_FLOOR 1 #define HAVE_LOG 1 #define HAVE_POW 1 #define HAVE_SCALBN 1 #define HAVE_SIN 1 #define HAVE_SINF 1 #define HAVE_SQRT 1 #else #define HAVE_STDARG_H 1 #define HAVE_STDDEF_H 1 #endif /* Enable various audio drivers */ #ifndef _WIN32_WCE #define SDL_AUDIO_DRIVER_DSOUND 1 #endif #define SDL_AUDIO_DRIVER_WINWAVEOUT 1 #define SDL_AUDIO_DRIVER_DISK 1 #define SDL_AUDIO_DRIVER_DUMMY 1 /* Enable various input drivers */ #ifdef _WIN32_WCE #define SDL_JOYSTICK_DISABLED 1 #define SDL_HAPTIC_DUMMY 1 #else #define SDL_JOYSTICK_DINPUT 1 #define SDL_HAPTIC_DINPUT 1 #endif /* Enable various shared object loading systems */ #define SDL_LOADSO_WINDOWS 1 /* Enable various threading systems */ #define SDL_THREAD_WINDOWS 1 /* Enable various timer systems */ #ifdef _WIN32_WCE #define SDL_TIMER_WINCE 1 #else #define SDL_TIMER_WINDOWS 1 #endif /* Enable various video drivers */ #define SDL_VIDEO_DRIVER_DUMMY 1 #define SDL_VIDEO_DRIVER_WINDOWS 1 #ifdef _WIN32_WCE #ifndef SDL_VIDEO_RENDER_GAPI #define SDL_VIDEO_RENDER_GAPI 1 #endif #else #ifndef SDL_VIDEO_RENDER_D3D #define SDL_VIDEO_RENDER_D3D 1 #endif #endif #ifndef SDL_VIDEO_RENDER_GDI #define SDL_VIDEO_RENDER_GDI 1 #endif /* Enable OpenGL support */ #ifndef _WIN32_WCE #ifndef SDL_VIDEO_OPENGL #define SDL_VIDEO_OPENGL 1 #endif #ifndef SDL_VIDEO_OPENGL_WGL #define SDL_VIDEO_OPENGL_WGL 1 #endif #ifndef SDL_VIDEO_RENDER_OGL #define SDL_VIDEO_RENDER_OGL 1 #endif #endif /* Enable system power support */ #define SDL_POWER_WINDOWS 1 /* Enable assembly routines (Win64 doesn't have inline asm) */ #ifndef _WIN64 #define SDL_ASSEMBLY_ROUTINES 1 #endif #endif /* _SDL_config_windows_h */