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al_set_window_title() Not Working On OS X El Capitan
Todd Cope
Member #998
November 2000
avatar
Posted on 10/25/2015 12:04 AM   View Profile

I recently upgraded my Mac to OS X El Capitan and just got around to setting up my development environment on it.

I noticed when running my Allegro applications built in this new environment, the window title is always set to "Allegro" and does not change. Calls to al_set_window_title() don't alter the title.

I am compiling with the latest XCode and using the OS X 10.11 SDK. The example program (ex_window_title) demonstrates the issue nicely.

Peter Hull
Member #1,136
March 2001
Posted on 10/25/2015 4:25 AM   View Profile

I was just looking at this recently. There's quite a lot doesn't work* for El Capitan, particularly the native dialog add on. I think El Capitan is a lot stricter about only accessing the Cocoa functions from the main thread. Maybe this will spur me on to do something about it. :o
Pete
* or at least, throws a warning message onto the console.

[edit]
Are you compiling Allegro yourself? Try changing set_window_title in osxgl.m from: 

static void set_window_title(ALLEGRO_DISPLAY *display, const char *title)
{
   NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
   ALLEGRO_DISPLAY_OSX_WIN* dpy = (ALLEGRO_DISPLAY_OSX_WIN*) display;
   [dpy->win setTitle: [NSString stringWithUTF8String:title]];
   [pool drain];
}

to: 

static void set_window_title(ALLEGRO_DISPLAY *display, const char *title)
{
   ALLEGRO_DISPLAY_OSX_WIN* dpy = (ALLEGRO_DISPLAY_OSX_WIN*) display;
   NSString* string = [[NSString alloc] initWithUTF8String:title];
   [dpy->win performSelectorOnMainThread:@selector(setTitle:) withObject:string waitUntilDone:YES];
   [string release];
}

Todd Cope
Member #998
November 2000
avatar
Posted on 10/25/2015 8:11 AM   View Profile

That new code works.

Peter Hull
Member #1,136
March 2001
Posted on 10/26/2015 3:02 AM   View Profile

Hi Todd,
Could you do me a favour and check ex_menu and ex_native_filechooser? These ones didn't work well for me and I wanted to check it wasn't just an oddity of my system. In particular the text log window didn't open reliably.

Thanks,
Pete

Todd Cope
Member #998
November 2000
avatar
Posted on 10/28/2015 8:44 PM   View Profile

Yeah, the log window is wonky. If I click the button to open the log window in ex_native_filechooser, the log window opens, but I can't close it and I get this output on the terminal:

CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces. 2015-10-28 20:40:32.827 ex_native_filechooser[64820:1026432] This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. This will cause an exception in a future release. Stack:( 0 CoreFoundation 0x00007fff91a4ce32 __exceptionPreprocess + 178 1 libobjc.A.dylib 0x00007fff834aedd4 objc_exception_throw + 48 2 CoreFoundation 0x00007fff91ab365d +[NSException raise:format:] + 205 3 Foundation 0x00007fff8df52631 _AssertAutolayoutOnMainThreadOnly + 79 4 Foundation 0x00007fff8df52486 -[NSISEngine withBehaviors:performModifications:] + 31 5 AppKit 0x00007fff9273d072 -[NSWindow(NSConstraintBasedLayout) layoutIfNeeded] + 215 6 AppKit 0x00007fff9274fb0c -[NSWindow displayIfNeeded] + 204 7 AppKit 0x00007fff92dce0be ___NSWindowGetDisplayCycleObserver_block_invoke6323 + 476 8 AppKit 0x00007fff9274f4c3 __37+[NSDisplayCycle currentDisplayCycle]_block_invoke + 738 9 QuartzCore 0x00007fff84fb97d1 _ZN2CA11Transaction19run_commit_handlersE18CATransactionPhase + 85 10 QuartzCore 0x00007fff84fb8c8c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 160 11 QuartzCore 0x00007fff84fb894c _ZN2CA11Transaction6commitEv + 508 12 QuartzCore 0x00007fff84fce7ee _ZN2CA11Transaction14release_threadEPv + 218 13 libsystem_pthread.dylib 0x00007fff8489b3f1 _pthread_tsd_cleanup + 555 14 libsystem_pthread.dylib 0x00007fff8489af78 _pthread_exit + 117 15 libsystem_pthread.dylib 0x00007fff848999bc pthread_sigmask + 0 16 libsystem_pthread.dylib 0x00007fff8489992e _pthread_body + 0 17 libsystem_pthread.dylib 0x00007fff84897385 thread_start + 13 ) 2015-10-28 20:40:32.831 ex_native_filechooser[64820:1026432] This application is modifying the autolayout engine from a background thread, which can lead to engine corruption and weird crashes. This will cause an exception in a future release. Stack:( 0 CoreFoundation 0x00007fff91a4ce32 __exceptionPreprocess + 178 1 libobjc.A.dylib 0x00007fff834aedd4 objc_exception_throw + 48 2 CoreFoundation 0x00007fff91ab365d +[NSException raise:format:] + 205 3 Foundation 0x00007fff8df52631 _AssertAutolayoutOnMainThreadOnly + 79 4 Foundation 0x00007fff8df59394 -[NSISEngine optimize] + 49 5 AppKit 0x00007fff9273d144 -[NSWindow(NSConstraintBasedLayout) _changeWindowFrameFromConstraintsIfNecessary] + 148 6 Foundation 0x00007fff8df52502 -[NSISEngine withBehaviors:performModifications:] + 155 7 AppKit 0x00007fff9273d072 -[NSWindow(NSConstraintBasedLayout) layoutIfNeeded] + 215 8 AppKit 0x00007fff9274fb0c -[NSWindow displayIfNeeded] + 204 9 AppKit 0x00007fff92dce0be ___NSWindowGetDisplayCycleObserver_block_invoke6323 + 476 10 AppKit 0x00007fff9274f4c3 __37+[NSDisplayCycle currentDisplayCycle]_block_invoke + 738 11 QuartzCore 0x00007fff84fb97d1 _ZN2CA11Transaction19run_commit_handlersE18CATransactionPhase + 85 12 QuartzCore 0x00007fff84fb8c8c _ZN2CA7Context18commit_transactionEPNS_11TransactionE + 160 13 QuartzCore 0x00007fff84fb894c _ZN2CA11Transaction6commitEv + 508 14 QuartzCore 0x00007fff84fce7ee _ZN2CA11Transaction14release_threadEPv + 218 15 libsystem_pthread.dylib 0x00007fff8489b3f1 _pthread_tsd_cleanup + 555 16 libsystem_pthread.dylib 0x00007fff8489af78 _pthread_exit + 117 17 libsystem_pthread.dylib 0x00007fff848999bc pthread_sigmask + 0 18 libsystem_pthread.dylib 0x00007fff8489992e _pthread_body + 0 19 libsystem_pthread.dylib 0x00007fff84897385 thread_start + 13 ) CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces. Mouse clicked at 315,457. CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces. Mouse clicked at 315,457. CoreAnimation: warning, deleted thread with uncommitted CATransaction; set CA_DEBUG_TRANSACTIONS=1 in environment to log backtraces.
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