view src/video/riscos/SDL_riscosASM.S @ 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
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 Library General Public
;    License as published by the Free Software Foundation; either
;    version 2 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
;    Library General Public License for more details.
;
;    You should have received a copy of the GNU Library General Public
;    License along with this library; if not, write to the Free
;    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
;
;    Sam Lantinga
;    slouken@libsdl.org
;
; Assembler routines for RISC OS display
;

	AREA |C$$CODE|

	EXPORT |RISCOS_Put32|

; Display 32bpp to 32bpp, 1:1
;
; Code provided by Adrain Lees
;
; entry a1 -> destination
;       a2 =  dest width in pixels
;       a3 =  dest line length in bytes
;       a4 =  dest height in scanlines
;       arg5 -> source
;       arg6 =  byte offset from end of source line to start of next

Arg5    *       10*4
Arg6    *       Arg5+4

RISCOS_Put32    ROUT
                STMFD   sp!,{a2,v1-v6,sl,fp,lr}
                LDR     ip,[sp,#Arg5]
                MOV     lr,a1
                B       ucp64lp

00              ;tail strip of 1-15 pixels

                LDR     v1,[ip],#4
01              SUBS    a2,a2,#1
                STR     v1,[lr],#4
                LDRHI   v1,[ip],#4
                BHI     %01
                B       %02

ucp64end        ADDS    a2,a2,#16
                BNE     %00

02              SUBS    a4,a4,#1                ;height--
                LDRHI   v1,[sp,#Arg6]
                LDRHI   a2,[sp]                 ;reload width
                BLS     %03

                ;move to start of next scanline

                ADD     lr,a1,a3
                ADD     a1,a1,a3
                ADD     ip,ip,v1

ucp64lp         SUBS    a2,a2,#16
                BLO     ucp64end

                PLD     [ip,#64]

                LDR     v1,[ip],#4
                LDR     v2,[ip],#4
                LDR     v3,[ip],#4
                LDR     v4,[ip],#4
                LDR     v5,[ip],#4
                LDR     v6,[ip],#4
                LDR     sl,[ip],#4
                LDR     fp,[ip],#4
                STR     v1,[lr],#4
                STR     v2,[lr],#4
                STR     v3,[lr],#4
                STR     v4,[lr],#4
                STR     v5,[lr],#4
                STR     v6,[lr],#4
                STR     sl,[lr],#4
                STR     fp,[lr],#4

                PLD     [ip,#64]

                LDR     v1,[ip],#4
                LDR     v2,[ip],#4
                LDR     v3,[ip],#4
                LDR     v4,[ip],#4
                LDR     v5,[ip],#4
                LDR     v6,[ip],#4
                LDR     sl,[ip],#4
                LDR     fp,[ip],#4
                STR     v1,[lr],#4
                STR     v2,[lr],#4
                STR     v3,[lr],#4
                STR     v4,[lr],#4
                STR     v5,[lr],#4
                STR     v6,[lr],#4
                STR     sl,[lr],#4
                STR     fp,[lr],#4

                B       ucp64lp

03              LDMFD   sp!,{a2,v1-v6,sl,fp,pc}