Mercurial > sdl-ios-xcode
view src/video/cocoa/SDL_cocoavideo.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 | 00cace2d9080 |
children | 59ff7a2beb57 |
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/* 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 */ #include "SDL_config.h" #include "SDL_cocoavideo.h" /* Initialization/Query functions */ static int Cocoa_VideoInit(_THIS); static void Cocoa_VideoQuit(_THIS); /* Cocoa driver bootstrap functions */ static int Cocoa_Available(void) { return (1); } static void Cocoa_DeleteDevice(SDL_VideoDevice * device) { SDL_VideoData *data = (SDL_VideoData *) device->driverdata; SDL_free(device->driverdata); SDL_free(device); } static SDL_VideoDevice * Cocoa_CreateDevice(int devindex) { SDL_VideoDevice *device; SDL_VideoData *data; Cocoa_RegisterApp(); /* Initialize all variables that we clean on shutdown */ device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); if (device) { data = (struct SDL_VideoData *) SDL_calloc(1, sizeof(SDL_VideoData)); } if (!device || !data) { SDL_OutOfMemory(); if (device) { SDL_free(device); } return NULL; } device->driverdata = data; /* Find out what version of Mac OS X we're running */ Gestalt(gestaltSystemVersion, &data->osversion); /* Set the function pointers */ device->VideoInit = Cocoa_VideoInit; device->VideoQuit = Cocoa_VideoQuit; device->GetDisplayModes = Cocoa_GetDisplayModes; device->SetDisplayMode = Cocoa_SetDisplayMode; device->PumpEvents = Cocoa_PumpEvents; device->CreateWindow = Cocoa_CreateWindow; device->CreateWindowFrom = Cocoa_CreateWindowFrom; device->SetWindowTitle = Cocoa_SetWindowTitle; device->SetWindowPosition = Cocoa_SetWindowPosition; device->SetWindowSize = Cocoa_SetWindowSize; device->ShowWindow = Cocoa_ShowWindow; device->HideWindow = Cocoa_HideWindow; device->RaiseWindow = Cocoa_RaiseWindow; device->MaximizeWindow = Cocoa_MaximizeWindow; device->MinimizeWindow = Cocoa_MinimizeWindow; device->RestoreWindow = Cocoa_RestoreWindow; device->SetWindowGrab = Cocoa_SetWindowGrab; device->DestroyWindow = Cocoa_DestroyWindow; device->GetWindowWMInfo = Cocoa_GetWindowWMInfo; #ifdef SDL_VIDEO_OPENGL_CGL device->GL_LoadLibrary = Cocoa_GL_LoadLibrary; device->GL_GetProcAddress = Cocoa_GL_GetProcAddress; device->GL_UnloadLibrary = Cocoa_GL_UnloadLibrary; device->GL_CreateContext = Cocoa_GL_CreateContext; device->GL_MakeCurrent = Cocoa_GL_MakeCurrent; device->GL_SetSwapInterval = Cocoa_GL_SetSwapInterval; device->GL_GetSwapInterval = Cocoa_GL_GetSwapInterval; device->GL_SwapWindow = Cocoa_GL_SwapWindow; device->GL_DeleteContext = Cocoa_GL_DeleteContext; #endif device->StartTextInput = Cocoa_StartTextInput; device->StopTextInput = Cocoa_StopTextInput; device->SetTextInputRect = Cocoa_SetTextInputRect; device->free = Cocoa_DeleteDevice; return device; } VideoBootStrap COCOA_bootstrap = { "cocoa", "SDL Cocoa video driver", Cocoa_Available, Cocoa_CreateDevice }; int Cocoa_VideoInit(_THIS) { Cocoa_InitModes(_this); Cocoa_InitKeyboard(_this); Cocoa_InitMouse(_this); return 0; } void Cocoa_VideoQuit(_THIS) { Cocoa_QuitModes(_this); Cocoa_QuitKeyboard(_this); Cocoa_QuitMouse(_this); } /* vim: set ts=4 sw=4 expandtab: */