include/SDL_config_iphoneos.h
author Sam Lantinga <slouken@libsdl.org>
Tue, 24 Nov 2009 08:12:32 +0000
changeset 3487 24d13328c44a
parent 3400 4ec48602f1db
child 3579 3427271a2d75
permissions -rw-r--r--
Eric Wing to Sam, hfutrell

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
     1 /*
     2     SDL - Simple DirectMedia Layer
     3     Copyright (C) 1997-2009 Sam Lantinga
     4 
     5     This library is free software; you can redistribute it and/or
     6     modify it under the terms of the GNU Lesser General Public
     7     License as published by the Free Software Foundation; either
     8     version 2.1 of the License, or (at your option) any later version.
     9 
    10     This library is distributed in the hope that it will be useful,
    11     but WITHOUT ANY WARRANTY; without even the implied warranty of
    12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    13     Lesser General Public License for more details.
    14 
    15     You should have received a copy of the GNU Lesser General Public
    16     License along with this library; if not, write to the Free Software
    17     Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
    18 
    19     Sam Lantinga
    20     slouken@libsdl.org
    21 */
    22 
    23 #ifndef _SDL_config_iphoneos_h
    24 #define _SDL_config_iphoneos_h
    25 
    26 #include "SDL_platform.h"
    27 
    28 #if !defined(_STDINT_H_) && (!defined(HAVE_STDINT_H) || !_HAVE_STDINT_H)
    29 typedef signed char int8_t;
    30 typedef unsigned char uint8_t;
    31 typedef signed short int16_t;
    32 typedef unsigned short uint16_t;
    33 typedef signed int int32_t;
    34 typedef unsigned int uint32_t;
    35 typedef unsigned long uintptr_t;
    36 #endif /* !_STDINT_H_ && !HAVE_STDINT_H */
    37 
    38 #ifdef __LP64__
    39 #define SIZEOF_VOIDP 8
    40 #else
    41 #define SIZEOF_VOIDP 4
    42 #endif
    43 
    44 #define SDL_HAS_64BIT_TYPE	1
    45 
    46 #define HAVE_ALLOCA_H		1
    47 #define HAVE_SYS_TYPES_H	1
    48 #define HAVE_STDIO_H	1
    49 #define STDC_HEADERS	1
    50 #define HAVE_STRING_H	1
    51 #define HAVE_INTTYPES_H	1
    52 #define HAVE_STDINT_H	1
    53 #define HAVE_CTYPE_H	1
    54 #define HAVE_MATH_H	1
    55 #define HAVE_SIGNAL_H	1
    56 
    57 /* C library functions */
    58 #define HAVE_MALLOC	1
    59 #define HAVE_CALLOC	1
    60 #define HAVE_REALLOC	1
    61 #define HAVE_FREE	1
    62 #define HAVE_ALLOCA	1
    63 #define HAVE_GETENV	1
    64 #define HAVE_PUTENV	1
    65 #define HAVE_UNSETENV	1
    66 #define HAVE_QSORT	1
    67 #define HAVE_ABS	1
    68 #define HAVE_BCOPY	1
    69 #define HAVE_MEMSET	1
    70 #define HAVE_MEMCPY	1
    71 #define HAVE_MEMMOVE	1
    72 #define HAVE_MEMCMP	1
    73 #define HAVE_STRLEN	1
    74 #define HAVE_STRLCPY	1
    75 #define HAVE_STRLCAT	1
    76 #define HAVE_STRDUP	1
    77 #define HAVE_STRCHR	1
    78 #define HAVE_STRRCHR	1
    79 #define HAVE_STRSTR	1
    80 #define HAVE_STRTOL	1
    81 #define HAVE_STRTOUL	1
    82 #define HAVE_STRTOLL	1
    83 #define HAVE_STRTOULL	1
    84 #define HAVE_STRTOD	1
    85 #define HAVE_ATOI	1
    86 #define HAVE_ATOF	1
    87 #define HAVE_STRCMP	1
    88 #define HAVE_STRNCMP	1
    89 #define HAVE_STRCASECMP	1
    90 #define HAVE_STRNCASECMP 1
    91 #define HAVE_SSCANF	1
    92 #define HAVE_SNPRINTF	1
    93 #define HAVE_VSNPRINTF	1
    94 #define HAVE_CEIL	1
    95 #define HAVE_COPYSIGN	1
    96 #define HAVE_COS	1
    97 #define HAVE_COSF	1
    98 #define HAVE_FABS	1
    99 #define HAVE_FLOOR	1
   100 #define HAVE_LOG	1
   101 #define HAVE_POW	1
   102 #define HAVE_SCALBN	1
   103 #define HAVE_SIN	1
   104 #define HAVE_SINF	1
   105 #define HAVE_SQRT	1
   106 #define HAVE_SIGACTION	1
   107 #define HAVE_SETJMP	1
   108 #define HAVE_NANOSLEEP	1
   109 
   110 /* enable iPhone version of Core Audio driver */
   111 #define SDL_AUDIO_DRIVER_COREAUDIOIPHONE 1
   112 /* Enable the dummy audio driver (src/audio/dummy/\*.c) */
   113 #define SDL_AUDIO_DRIVER_DUMMY	1
   114 
   115 /* Enable the stub haptic driver (src/haptic/dummy/\*.c) */
   116 #define SDL_HAPTIC_DISABLED	1
   117 
   118 /* Enable Unix style SO loading */
   119 /* Technically this works, but it violates the iPhone developer agreement */
   120 /* #define SDL_LOADSO_DLOPEN 1 */
   121 
   122 /* Enable the stub shared object loader (src/loadso/dummy/\*.c) */
   123 #define SDL_LOADSO_DISABLED	1
   124 
   125 /* Enable various threading systems */
   126 #define SDL_THREAD_PTHREAD	1
   127 #define SDL_THREAD_PTHREAD_RECURSIVE_MUTEX	1
   128 
   129 /* Enable various timer systems */
   130 #define SDL_TIMER_UNIX	1
   131 
   132 /* Supported video drivers */
   133 #define SDL_VIDEO_DRIVER_UIKIT	1
   134 #define SDL_VIDEO_DRIVER_DUMMY	1
   135 
   136 /* enable OpenGL ES */
   137 #define SDL_VIDEO_OPENGL_ES	1
   138 #define SDL_VIDEO_RENDER_OGL_ES	1
   139 
   140 /* Enable system power support */
   141 #define SDL_POWER_MACOSX 1
   142 
   143 /* enable iPhone keyboard support */
   144 #define SDL_IPHONE_KEYBOARD 0
   145 
   146 /* Enable emulation of multiple mice through multi-touch */
   147 #define SDL_IPHONE_MULTIPLE_MICE 1
   148 
   149 /* Set max recognized G-force from acceleromter
   150    See src/joystick/uikit/SDLUIAccelerationDelegate.m for notes on why this is needed
   151  */
   152 #define SDL_IPHONE_MAX_GFORCE 5.0
   153 
   154 #endif /* _SDL_config_iphoneos_h */