Texture2Dでメモリリーク

Question

私はAppleのTexture2DクラスをCrashLandingの例から使用して、画面に動的テキストを描画しています。ここで

は私の方法です：

- (void) drawText:(NSString*)textToDraw atX:(float)X andY:(float)Y { 

    glColor4f(0, 0, 0, 1.0); 

    Texture2D* _text = [[Texture2D alloc] initWithString:textToDraw dimensions:CGSizeMake(512, 512) alignment:UITextAlignmentLeft fontName:@"Arial" fontSize:11]; 

    glBindTexture(GL_TEXTURE_2D, [_text name]); 

    glEnableClientState(GL_TEXTURE_COORD_ARRAY); 
    glEnableClientState(GL_VERTEX_ARRAY); 
    glEnable(GL_TEXTURE_2D); 
    glEnable(GL_BLEND); 

    glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 

    [_text drawAtPoint:CGPointMake(.5,.5)]; 
    [_text release];  

    glDisableClientState(GL_TEXTURE_COORD_ARRAY); 
    glDisableClientState(GL_VERTEX_ARRAY); 
    glDisable(GL_TEXTURE_2D); 
    glDisable(GL_BLEND);  
} 

この方法は、ループので、私はそれが漏れを引き起こす割り当て、知っていたので、私はそれが問題を小文字ではないでしょうリリースを望みました。しかし、テクスチャをリリースしても約10秒後に、ゲームがクラッシュします。 initメソッドでテクスチャを割り当てることができないため、テキストが静的に制限されるためです。

動的テキストを許可するようにTexture2Dクラスを変更しようとしましたが、成功できませんでした。

更新：あなたは

にTexture2D * _text = [[にTexture2Dのallocを記述する必要がiPhoneシミュレータ

Process:   Game [31087] 
Path:   /Users/robertfratto/Library/Application Support/iPhone Simulator/4.2/Applications/3AF59DDA-79AC-412D-A968-C80DABEC7B19/Game.app/Game 
Identifier:  Game 
Version:   ??? (???) 
Code Type:  X86 (Native) 
Parent Process: ??? [31088] 

Date/Time:  2011-01-10 01:06:45.059 -0500 
OS Version:  Mac OS X 10.6.6 (10J567) 
Report Version: 6 

Exception Type: EXC_BAD_ACCESS (SIGBUS) 
Exception Codes: KERN_PROTECTION_FAILURE at 0x0000000000000000 
Crashed Thread: 4 

Application Specific Information: 
iPhone Simulator 235, iPhone OS 4.2 (iPhone (Retina)/8C134) 

Thread 0: Dispatch queue: com.apple.main-thread 
0 dyld       0x8fe12fae ImageLoaderMachOClassic::prefetchLINKEDIT(ImageLoader::LinkContext const&) + 124 
1 dyld       0x8fe1316a ImageLoaderMachOClassic::rebase(ImageLoader::LinkContext const&) + 82 
2 dyld       0x8fe104d4 ImageLoaderMachO::doRebase(ImageLoader::LinkContext const&) + 286 
3 dyld       0x8fe0cdb1 ImageLoader::recursiveRebase(ImageLoader::LinkContext const&) + 91 
4 dyld       0x8fe0de70 ImageLoader::link(ImageLoader::LinkContext const&, bool, bool, ImageLoader::RPathChain const&) + 158 
5 dyld       0x8fe056af dyld::link(ImageLoader*, bool, ImageLoader::RPathChain const&) + 137 
6 dyld       0x8fe0b242 dlopen + 471 
7 libSystem.B.dylib    0x95fce8a8 dlopen + 66 
8 com.apple.CoreGraphics   0x00ae3e71 load_function + 619 
9 com.apple.CoreGraphics   0x00ae4016 CGLibraryLoadFunction + 193 
10 com.apple.CoreGraphics   0x00b4501e load_library + 38 
11 com.apple.CoreGraphics   0x00b450f5 load_vtable + 162 
12 libSystem.B.dylib    0x95fe6900 pthread_once + 82 
13 com.apple.CoreGraphics   0x00b44fec CGFontGetVTable + 37 
14 com.apple.CoreGraphics   0x00ada052 CGFontFinderGetDefault + 28 
15 com.apple.CoreGraphics   0x00b11c99 CGFontCreateWithFontName + 63 
16 com.apple.CoreGraphics   0x00b11de6 CGFontCreateWithName + 57 
17 GraphicsServices    0x011b9d3c GSFontCreateWithName + 494 
18 UIKit       0x0019fa7b UINewFont + 100 
19 UIKit       0x0019faa7 +[UIFont systemFontOfSize:traits:] + 33 
20 UIKit       0x0019ee00 +[UIFont systemFontOfSize:] + 49 
21 UIKit       0x0015a537 +[UILabel defaultFont] + 45 
22 UIKit       0x0015ccc3 -[UILabel _commonInit] + 96 
23 UIKit       0x0015ab0b -[UILabel initWithFrame:] + 98 
24 Game       0x00002921 -[EAGLView initWithCoder:] + 264 (EAGLView.m:37) 
25 UIKit       0x00232265 -[UIClassSwapper initWithCoder:] + 237 
26 Foundation      0x00790c7c _decodeObjectBinary + 3296 
27 Foundation      0x00791a4d -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1354 
28 Foundation      0x0079207c -[NSArray(NSArray) initWithCoder:] + 596 
29 Foundation      0x00790c7c _decodeObjectBinary + 3296 
30 Foundation      0x0078fde9 _decodeObject + 224 
31 UIKit       0x00072c5f -[UIView initWithCoder:] + 642 
32 UIKit       0x0005f709 -[UIWindow initWithCoder:] + 89 
33 Foundation      0x00790c7c _decodeObjectBinary + 3296 
34 Foundation      0x0078fde9 _decodeObject + 224 
35 UIKit       0x00231f43 -[UIRuntimeConnection initWithCoder:] + 212 
36 Foundation      0x00790c7c _decodeObjectBinary + 3296 
37 Foundation      0x00791a4d -[NSKeyedUnarchiver _decodeArrayOfObjectsForKey:] + 1354 
38 Foundation      0x0079207c -[NSArray(NSArray) initWithCoder:] + 596 
39 Foundation      0x00790c7c _decodeObjectBinary + 3296 
40 Foundation      0x0078fde9 _decodeObject + 224 
41 UIKit       0x00231200 -[UINib instantiateWithOwner:options:] + 804 
42 UIKit       0x00233081 -[NSBundle(UINSBundleAdditions) loadNibNamed:owner:options:] + 168 
43 UIKit       0x0003d943 -[UIApplication _loadMainNibFile] + 172 
44 UIKit       0x0003e4ca -[UIApplication _runWithURL:payload:launchOrientation:statusBarStyle:statusBarHidden:] + 291 
45 UIKit       0x00048db2 -[UIApplication handleEvent:withNewEvent:] + 1533 
46 UIKit       0x00041202 -[UIApplication sendEvent:] + 71 
47 UIKit       0x00046732 _UIApplicationHandleEvent + 7576 
48 GraphicsServices    0x011bca36 PurpleEventCallback + 1550 
49 CoreFoundation     0x00f29064 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52 
50 CoreFoundation     0x00e896f7 __CFRunLoopDoSource1 + 215 
51 CoreFoundation     0x00e86983 __CFRunLoopRun + 979 
52 CoreFoundation     0x00e86240 CFRunLoopRunSpecific + 208 
53 CoreFoundation     0x00e86161 CFRunLoopRunInMode + 97 
54 UIKit       0x0003dfa8 -[UIApplication _run] + 636 
55 UIKit       0x0004a42e UIApplicationMain + 1160 
56 Game       0x00002510 main + 102 (main.m:13) 
57 Game       0x000024a1 start + 53 

Thread 1: Dispatch queue: com.apple.libdispatch-manager 
0 libSystem.B.dylib    0x95fee982 kevent + 10 
1 libSystem.B.dylib    0x95fef09c _dispatch_mgr_invoke + 215 
2 libSystem.B.dylib    0x95fee559 _dispatch_queue_invoke + 163 
3 libSystem.B.dylib    0x95fee2fe _dispatch_worker_thread2 + 240 
4 libSystem.B.dylib    0x95fedd81 _pthread_wqthread + 390 
5 libSystem.B.dylib    0x95fedbc6 start_wqthread + 30 

Thread 2: 
0 libSystem.B.dylib    0x95feda12 __workq_kernreturn + 10 
1 libSystem.B.dylib    0x95fedfa8 _pthread_wqthread + 941 
2 libSystem.B.dylib    0x95fedbc6 start_wqthread + 30 

Thread 3: WebThread 
0 libSystem.B.dylib    0x95fc80fa mach_msg_trap + 10 
1 libSystem.B.dylib    0x95fc8867 mach_msg + 68 
2 CoreFoundation     0x00f294a6 __CFRunLoopServiceMachPort + 150 
3 CoreFoundation     0x00e86874 __CFRunLoopRun + 708 
4 CoreFoundation     0x00e86240 CFRunLoopRunSpecific + 208 
5 CoreFoundation     0x00e86161 CFRunLoopRunInMode + 97 
6 WebCore       0x01e4f423 RunWebThread(void*) + 499 
7 libSystem.B.dylib    0x95ff585d _pthread_start + 345 
8 libSystem.B.dylib    0x95ff56e2 thread_start + 34 

Thread 4 Crashed: 

Thread 4 crashed with X86 Thread State (32-bit): 
    eax: 0x00000000 ebx: 0x00000000 ecx: 0x00000000 edx: 0x00000000 
    edi: 0x00000000 esi: 0x00000000 ebp: 0x00000000 esp: 0x00000000 
    ss: 0x0000001f efl: 0x00010202 eip: 0x00000000 cs: 0x00000017 
    ds: 0x0000001f es: 0x0000001f fs: 0x0000001f gs: 0x0000001f 
    cr2: 0x00000000 

Binary Images: 
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0x92d05000 - 0x92d6ffe7 libstdc++.6.dylib 7.9.0 (compatibility 7.0.0) <411D87F4-B7E1-44EB-F201-F8B4F9227213> /usr/lib/libstdc++.6.dylib 
0x93691000 - 0x93691ff7 com.apple.Accelerate 1.6 (Accelerate 1.6) <BC501C9F-7C20-961A-B135-0A457667D03C> /System/Library/Frameworks/Accelerate.framework/Versions/A/Accelerate 
0x937da000 - 0x937e6ff7 libkxld.dylib ??? (???) <F0E915AD-6B32-0D5E-D24B-B188447FDD23> /usr/lib/system/libkxld.dylib 
0x93d7f000 - 0x93deeff7 libvMisc.dylib 268.0.1 (compatibility 1.0.0) <2FC2178F-FEF9-6E3F-3289-A6307B1A154C> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvMisc.dylib 
0x94a6c000 - 0x94a6ffe7 libmathCommon.A.dylib 315.0.0 (compatibility 1.0.0) <1622A54F-1A98-2CBE-B6A4-2122981A500E> /usr/lib/system/libmathCommon.A.dylib 
0x94e5b000 - 0x94f4fff7 libiconv.2.dylib 7.0.0 (compatibility 7.0.0) <9EC28185-D26F-533F-90C4-FBAA13A15947> /usr/lib/libiconv.2.dylib 
0x94f50000 - 0x94fadff7 com.apple.framework.IOKit 2.0 (???) <A769737F-E0D6-FB06-29B4-915CF4F43420> /System/Library/Frameworks/IOKit.framework/Versions/A/IOKit 
0x95d23000 - 0x95d23ff7 com.apple.vecLib 3.6 (vecLib 3.6) <7362077A-890F-3AEF-A8AB-22247B10E106> /System/Library/Frameworks/vecLib.framework/Versions/A/vecLib 
0x95fc7000 - 0x9616eff7 libSystem.B.dylib 125.2.1 (compatibility 1.0.0) <62291026-D016-705D-DC1E-FC2B09D47DE5> /usr/lib/libSystem.B.dylib 
0x97153000 - 0x97195ff7 libvDSP.dylib 268.0.1 (compatibility 1.0.0) <3F0ED200-741B-4E27-B89F-634B131F5E9E> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libvDSP.dylib 
0x97997000 - 0x97a74ff7 com.apple.vImage 4.0 (4.0) <64597E4B-F144-DBB3-F428-0EC3D9A1219E> /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vImage.framework/Versions/A/vImage 
0x97e4c000 - 0x97e60fe7 libbsm.0.dylib ??? (???) <14CB053A-7C47-96DA-E415-0906BA1B78C9> /usr/lib/libbsm.0.dylib 
0xffff0000 - 0xffff1fff libSystem.B.dylib ??? (???) <62291026-D016-705D-DC1E-FC2B09D47DE5> /usr/lib/libSystem.B.dylib 

Answer 1

理由はわかりませんが、(NSString*)theString引数のためにクラッシュしています。現時点では、不都合ですが、引数で定義された文字列の代わりにグローバル変数が表示されるように設定されている場合、ゲームはクラッシュしません。

私が描画したい文字列ごとに別のdrawTextメソッドを作成すると、それは機能します。

Answer 2

からのクラッシュレポート] initWithString：textToDraw寸法：CGSizeMake（512、512）アライメント：UITextAlignmentLeftをfontName：@ "Arial" fontSize：11];

代わりに にTexture2D * _text = [[[にTexture2D ALLOC] initWithString：textToDraw寸法：CGSizeMake（512、512）配向：UITextAlignmentLeftたfontName： "ゴシック" のfontSize @：11]自動解放]。

あなたにとって参考になるかもしれません。