• Sam Lantinga's avatar
    Eric Wing to Sam, hfutrell · 6524589f
    Sam Lantinga authored
    This one is quite puzzling. I found a partial workaround, but I don't fully understand the reasons yet.
    
    First, the console is complaining about not finding a nib for MainWindow.
    I tried removing the entry for this in the info.plist, and the message went away, but it didn't really change anything.
    
    Second, I stepped through this with the debugger and broke up some lines. It seems that the basic act of calling
           view = [SDL_uikitopenglview alloc];
    
    or even
           view = [SDL_uikitview alloc]
    
    will crash the program. The debugger messages plus the stack trace make me think it's not finding the SDL_uikitview classes for some reason. But I don't understand why this would be.
    
    view = [UIView alloc] will not crash the program.
    
    For kicks, I added a new definition of a class called SDL_object which subclasses NSObject in the same files as SDL_uikitopenglview and then call
           view = [SDL_object alloc];
    
    This does not crash the program.
    
    So, then I modified SDL_object to subclass UIView. No crash.
    
    Next, I made SDL_object subclass UIView<UITextFieldDelegate> . This crashes.
    
    So it is the act of conforming to the UITextFieldDelegate protocol that is crashing things.
    
    I don't understand why it would crash on alloc though. I'm guessing either a delegate needs to be set somewhere or one of the required methods needs to be implemented. But in the former case, I would not expect a crash, but a silent message to nil and something else doesn't work. And in the latter case, I would expect a compiler warning and an exception thrown instead of a crash.
    
    Anyway, my temporary workaround is to change the interface declaration for SDL_uikitview to look like:
    
    #if SDL_IPHONE_KEYBOARD
    @interface SDL_uikitview : UIView<UITextFieldDelegate> {
    #else
    @interface SDL_uikitview : UIView {
    #endif
    
    And then disable the keyboard support in the SDL_config_iphoneos.h file.
    /* enable iPhone keyboard support */
    #define SDL_IPHONE_KEYBOARD 0
    
    
    -Eric
    
    On Nov 23, 2009, at 1:43 AM, Sam Lantinga wrote:
    
    > I ran into a blocking startup crash with the Happy demo on iPhone OS 3.1.2 on my new iPhone:
    >
    > #0    0x323fea14 in _class_isInitialized
    > #1    0x323fea68 in _class_initialize
    > #2    0x32403e92 in prepareForMethodLookup
    > #3    0x32401244 in lookUpMethod
    > #4    0x323fea10 in _class_lookupMethodAndLoadCache
    > #5    0x323fe746 in objc_msgSend_uncached
    > #6    0x323feb26 in _class_initialize
    > #7    0x323fea58 in _class_initialize
    > #8    0x32403e92 in prepareForMethodLookup
    > #9    0x32401244 in lookUpMethod
    > #10   0x323fea10 in _class_lookupMethodAndLoadCache
    > #11   0x323fe746 in objc_msgSend_uncached
    > #12   0x000554dc in UIKit_GL_CreateContext at SDL_uikitopengles.m:103
    > #13   0x0004f89e in SDL_GL_CreateContext at SDL_video.c:3155
    > #14   0x000579e8 in GLES_CreateRenderer at SDL_renderer_gles.c:282
    > #15   0x0004d7b8 in SDL_CreateRenderer at SDL_video.c:1509
    > #16   0x00002bc2 in SDL_main at happy.c:156
    > #17   0x000571b2 in -[SDLUIKitDelegate postFinishLaunch] at
    > SDL_uikitappdelegate.m:77
    > #18   0x313f9ef2 in __NSFireDelayedPerform
    > #19   0x32567bb2 in CFRunLoopRunSpecific
    > #20   0x3256735c in CFRunLoopRunInMode
    > #21   0x32912cbe in GSEventRunModal
    > #22   0x32912d6a in GSEventRun
    > #23   0x32b6276e in -[UIApplication _run]
    > #24   0x32b61472 in UIApplicationMain
    > #25   0x00057088 in main at SDL_uikitappdelegate.m:50
    >
    > Any ideas?
    >
    > See ya!
    > --
    >       -Sam Lantinga, Founder and President, Galaxy Gameworks LLC
    
    --HG--
    extra : convert_revision : svn%3Ac70aab31-4412-0410-b14c-859654838e24/trunk%404228
    6524589f
SDL_config_iphoneos.h 4.01 KB
/*
    SDL - Simple DirectMedia Layer
    Copyright (C) 1997-2009 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_iphoneos_h
#define _SDL_config_iphoneos_h

#include "SDL_platform.h"

#if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
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 unsigned long uintptr_t;
#endif /* !_STDINT_H_ && !HAVE_STDINT_H */

#ifdef __LP64__
#define SIZEOF_VOIDP 8
#else
#define SIZEOF_VOIDP 4
#endif

#define SDL_HAS_64BIT_TYPE	1

#define HAVE_ALLOCA_H		1
#define HAVE_SYS_TYPES_H	1
#define HAVE_STDIO_H	1
#define STDC_HEADERS	1
#define HAVE_STRING_H	1
#define HAVE_INTTYPES_H	1
#define HAVE_STDINT_H	1
#define HAVE_CTYPE_H	1
#define HAVE_MATH_H	1
#define HAVE_SIGNAL_H	1

/* 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_GETENV	1
#define HAVE_PUTENV	1
#define HAVE_UNSETENV	1
#define HAVE_QSORT	1
#define HAVE_ABS	1
#define HAVE_BCOPY	1
#define HAVE_MEMSET	1
#define HAVE_MEMCPY	1
#define HAVE_MEMMOVE	1
#define HAVE_MEMCMP	1
#define HAVE_STRLEN	1
#define HAVE_STRLCPY	1
#define HAVE_STRLCAT	1
#define HAVE_STRDUP	1
#define HAVE_STRCHR	1
#define HAVE_STRRCHR	1
#define HAVE_STRSTR	1
#define HAVE_STRTOL	1
#define HAVE_STRTOUL	1
#define HAVE_STRTOLL	1
#define HAVE_STRTOULL	1
#define HAVE_STRTOD	1
#define HAVE_ATOI	1
#define HAVE_ATOF	1
#define HAVE_STRCMP	1
#define HAVE_STRNCMP	1
#define HAVE_STRCASECMP	1
#define HAVE_STRNCASECMP 1
#define HAVE_SSCANF	1
#define HAVE_SNPRINTF	1
#define HAVE_VSNPRINTF	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
#define HAVE_SIGACTION	1
#define HAVE_SETJMP	1
#define HAVE_NANOSLEEP	1

/* enable iPhone version of Core Audio driver */
#define SDL_AUDIO_DRIVER_COREAUDIOIPHONE 1
/* Enable the dummy audio driver (src/audio/dummy/\*.c) */
#define SDL_AUDIO_DRIVER_DUMMY	1

/* Enable the stub haptic driver (src/haptic/dummy/\*.c) */
#define SDL_HAPTIC_DISABLED	1

/* Enable Unix style SO loading */
/* Technically this works, but it violates the iPhone developer agreement */
/* #define SDL_LOADSO_DLOPEN 1 */

/* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
#define SDL_LOADSO_DISABLED	1

/* Enable various threading systems */
#define SDL_THREAD_PTHREAD	1
#define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX	1

/* Enable various timer systems */
#define SDL_TIMER_UNIX	1

/* Supported video drivers */
#define SDL_VIDEO_DRIVER_UIKIT	1
#define SDL_VIDEO_DRIVER_DUMMY	1

/* enable OpenGL ES */
#define SDL_VIDEO_OPENGL_ES	1
#define SDL_VIDEO_RENDER_OGL_ES	1

/* Enable system power support */
#define SDL_POWER_MACOSX 1

/* enable iPhone keyboard support */
#define SDL_IPHONE_KEYBOARD 0

/* Enable emulation of multiple mice through multi-touch */
#define SDL_IPHONE_MULTIPLE_MICE 1

/* Set max recognized G-force from acceleromter
   See src/joystick/uikit/SDLUIAccelerationDelegate.m for notes on why this is needed
 */
#define SDL_IPHONE_MAX_GFORCE 5.0

#endif /* _SDL_config_iphoneos_h */