Mercurial > sdl-ios-xcode
view test/testmmousetablet.c @ 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 | 975fd903466b |
children |
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#include <stdio.h> #include "SDL.h" SDL_Surface *screen; int quit = 0; int main(int argc, char *argv[]) { SDL_Event event; int mice; int i; printf("Initing...\n"); if (SDL_Init(0) != 0) { return 1; } if (SDL_InitSubSystem(SDL_INIT_VIDEO) != 0) { return 1; } else { screen = SDL_SetVideoMode(640, 480, 32, SDL_DOUBLEBUF); } mice = SDL_GetNumMice(); printf("%d pointing devices found\n", mice); for (i = 0; i < mice; ++i) { printf("device index: %d name:%s\n", i, SDL_GetMouseName(i)); } while (quit != 1) { if (SDL_PollEvent(&event) == 0) { } else { switch (event.type) { case SDL_MOUSEMOTION: printf ("Device id: %d x: %d y: %d relx: %d rely: %d pressure: %d\n \ pressure_max: %d pressure_min: %d current cursor:%d\n", event.motion.which, event.motion.x, event.motion.y, event.motion.xrel, event.motion.yrel, event.motion.pressure, event.motion.pressure_max, event.motion.pressure_min, event.motion.cursor); break; case SDL_PROXIMITYIN: printf("proximity in id: %d x: %d y: %d\n", (int) event.proximity.which, event.proximity.x, event.proximity.y); break; case SDL_PROXIMITYOUT: printf("proximity out id: %d x: %d y: %d\n", (int) event.proximity.which, event.proximity.x, event.proximity.y); break; case SDL_MOUSEBUTTONDOWN: printf("mouse button down id: %d button:%d\n", event.button.which, event.button.button); break; case SDL_MOUSEBUTTONUP: printf("mouse button up id: %d button: %d\n", event.button.which, event.button.button); break; case SDL_QUIT: printf("Quitting\n"); SDL_QuitSubSystem(SDL_INIT_VIDEO); SDL_Quit(); quit = 1; break; } } } return 0; }