view src/video/uikit/SDL_uikitappdelegate.m @ 3487:24d13328c44a

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
author Sam Lantinga <slouken@libsdl.org>
date Tue, 24 Nov 2009 08:12:32 +0000
parents ec4db979dddb
children 64ce267332c6
line wrap: on
line source

/*
 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
*/

#import "SDL_uikitappdelegate.h"
#import "SDL_uikitopenglview.h"
#import "SDL_events_c.h"
#import "jumphack.h"

#ifdef main
#undef main
#endif

extern int SDL_main(int argc, char *argv[]);
static int forward_argc;
static char **forward_argv;

int main(int argc, char **argv) {

	int i;
	NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
	
	/* store arguments */
	forward_argc = argc;
	forward_argv = (char **)malloc(argc * sizeof(char *));
	for (i=0; i<argc; i++) {
		forward_argv[i] = malloc( (strlen(argv[i])+1) * sizeof(char));
		strcpy(forward_argv[i], argv[i]);
	}

	/* Give over control to run loop, SDLUIKitDelegate will handle most things from here */
	UIApplicationMain(argc, argv, NULL, @"SDLUIKitDelegate");
	
	[pool release];
	
}

@implementation SDLUIKitDelegate

@synthesize window;
@synthesize windowID;

/* convenience method */
+(SDLUIKitDelegate *)sharedAppDelegate {
	/* the delegate is set in UIApplicationMain(), which is garaunteed to be called before this method */
	return (SDLUIKitDelegate *)[[UIApplication sharedApplication] delegate];
}

- (id)init {
	self = [super init];
	window = nil;
	windowID = 0;
	return self;
}

- (void)postFinishLaunch {

	/* run the user's application, passing argc and argv */
	int exit_status = SDL_main(forward_argc, forward_argv);
	
	/* free the memory we used to hold copies of argc and argv */
	int i;
	for (i=0; i<forward_argc; i++) {
		free(forward_argv[i]);
	}
	free(forward_argv);	
		
	/* exit, passing the return status from the user's application */
	exit(exit_status);
}

- (void)applicationDidFinishLaunching:(UIApplication *)application {
			
	/* Set working directory to resource path */
	[[NSFileManager defaultManager] changeCurrentDirectoryPath: [[NSBundle mainBundle] resourcePath]];
	
	[self performSelector:@selector(postFinishLaunch) withObject:nil
afterDelay:0.0];
}

- (void)applicationWillTerminate:(UIApplication *)application {
	
	SDL_SendQuit();
	 /* hack to prevent automatic termination.  See SDL_uikitevents.m for details */
	longjmp(*(jump_env()), 1);
	
}

- (void) applicationWillResignActive:(UIApplication*)application
{
//	NSLog(@"%@", NSStringFromSelector(_cmd));
	SDL_SendWindowEvent(self.windowID, SDL_WINDOWEVENT_MINIMIZED, 0, 0);
}

- (void) applicationDidBecomeActive:(UIApplication*)application
{
//	NSLog(@"%@", NSStringFromSelector(_cmd));
	SDL_SendWindowEvent(self.windowID, SDL_WINDOWEVENT_RESTORED, 0, 0);
}



-(void)dealloc {
	[window release];
	[super dealloc];
}

@end