Mercurial > sdl-ios-xcode
view src/video/uikit/SDL_uikitvideo.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 | 99210400e8b9 |
children | 8b18669c2663 |
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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_video.h" #include "SDL_mouse.h" #include "../SDL_sysvideo.h" #include "../SDL_pixels_c.h" #include "../../events/SDL_events_c.h" #include "SDL_uikitvideo.h" #include "SDL_uikitevents.h" #include "SDL_uikitwindow.h" #include "SDL_uikitopengles.h" #include "SDL_renderer_sw.h" #include "SDL_renderer_gles.h" #define UIKITVID_DRIVER_NAME "uikit" /* Initialization/Query functions */ static int UIKit_VideoInit(_THIS); static int UIKit_SetDisplayMode(_THIS, SDL_DisplayMode * mode); static void UIKit_VideoQuit(_THIS); /* DUMMY driver bootstrap functions */ static int UIKit_Available(void) { return (1); } static void UIKit_DeleteDevice(SDL_VideoDevice * device) { SDL_free(device); } static SDL_VideoDevice * UIKit_CreateDevice(int devindex) { SDL_VideoDevice *device; /* Initialize all variables that we clean on shutdown */ device = (SDL_VideoDevice *) SDL_calloc(1, sizeof(SDL_VideoDevice)); if (!device) { SDL_OutOfMemory(); if (device) { SDL_free(device); } return (0); } /* Set the function pointers */ device->VideoInit = UIKit_VideoInit; device->VideoQuit = UIKit_VideoQuit; device->SetDisplayMode = UIKit_SetDisplayMode; device->PumpEvents = UIKit_PumpEvents; device->CreateWindow = UIKit_CreateWindow; device->DestroyWindow = UIKit_DestroyWindow; /* OpenGL (ES) functions */ device->GL_MakeCurrent = UIKit_GL_MakeCurrent; device->GL_SwapWindow = UIKit_GL_SwapWindow; device->GL_CreateContext = UIKit_GL_CreateContext; device->GL_DeleteContext = UIKit_GL_DeleteContext; device->GL_GetProcAddress = UIKit_GL_GetProcAddress; device->GL_LoadLibrary = UIKit_GL_LoadLibrary; device->free = UIKit_DeleteDevice; device->gl_config.accelerated = 1; return device; } VideoBootStrap UIKIT_bootstrap = { UIKITVID_DRIVER_NAME, "SDL UIKit video driver", UIKit_Available, UIKit_CreateDevice }; int UIKit_VideoInit(_THIS) { SDL_DisplayMode mode; _this->gl_config.driver_loaded = 1; SDL_VideoDisplay display; SDL_zero(display); /* Use a 32-bpp desktop mode */ SDL_zero(mode); mode.format = SDL_PIXELFORMAT_ABGR8888; mode.w = 320; mode.h = 480; mode.refresh_rate = 0; mode.driverdata = NULL; display.num_display_modes = 1; display.max_display_modes = 1; display.display_modes = (SDL_DisplayMode *)SDL_malloc(display.max_display_modes * sizeof(SDL_DisplayMode)); display.display_modes[0] = mode; display.desktop_mode = mode; display.fullscreen_mode = mode; display.current_mode = mode; SDL_AddVideoDisplay(&display); /* We're done! */ return 0; } static int UIKit_SetDisplayMode(_THIS, SDL_DisplayMode * mode) { return 0; } void UIKit_VideoQuit(_THIS) { } /* vi: set ts=4 sw=4 expandtab: */