锘??xml version="1.0" encoding="utf-8" standalone="yes"?>国产在线视频欧美一区二区三区,亚洲一区区二区,快射av在线播放一区http://m.shnenglu.com/momor/澶╀笅闅句簨錛屽繀浣滀簬鏄擄紱澶╀笅澶т簨錛屽繀浣滀簬緇?/description>zh-cnMon, 29 Sep 2025 23:34:35 GMTMon, 29 Sep 2025 23:34:35 GMT60鍒ゅ埆IOS榪愯騫沖彴http://m.shnenglu.com/momor/archive/2010/08/19/123981.htmlmomormomorThu, 19 Aug 2010 09:05:00 GMThttp://m.shnenglu.com/momor/archive/2010/08/19/123981.htmlhttp://m.shnenglu.com/momor/comments/123981.htmlhttp://m.shnenglu.com/momor/archive/2010/08/19/123981.html#Feedback0http://m.shnenglu.com/momor/comments/commentRss/123981.htmlhttp://m.shnenglu.com/momor/services/trackbacks/123981.html鏈潵榪欐槸QQ緹ら噷涓涓湅鍙嬬殑闂錛岀綉涓婃煡浜嗕竴涓嬶紝鐜板湪灝嗘柟娉曞ぇ姒傛暣鐞嗕竴涓嬶紝浠ヤ究浜庨渶瑕佺殑鏈嬪弸浣跨敤銆傚綋鐒訛紝浣跨敤

UIDevice綾伙紝涔熷彲浠ョ畝鍗曠殑鑾峰緱鍒板簳褰撳墠騫沖彴鏄痠phone 榪樻槸itouch,浣嗘槸浣犳墍鑾峰緱鐨勪俊鎭篃灝變粎闄愪簬姝や簡錛屽鏋滄兂鑾峰緱鏇村鐨?/div>

紜歡騫沖彴淇℃伅鍛紵浣跨敤sysctlbyname錛屽嵆鍙?/div>

鑾峰彇褰撳墠鐨勫鉤鍙頒俊鎭紝闇瑕佹煡璇w.machine 鍊鹼紝榪斿洖鍊間負浠ヤ笅瀛楃涓詫細
iPhone1,1 (iphone涓浠?
iPhone1,2 (iphone 3G)
iPhone2,1 (iphone 3Gs)
iPhone3,1 (Iphone 4)
iPod1,1     (iPod Touch 1浠?
iPod2,1     (iPod Touch 2浠?
iPod3,1     (iPod Touch 3浠?
i386           (妯℃嫙鍣?

浣跨敤鏂規硶錛?/div>

UIDeviceHardware *h=[[UIDeviceHardware alloc] init];
[self setDeviceModel:[h platformString]];   
[h release];

UIDeviceHardware.h 澶存枃浠?/div>

//
//  UIDeviceHardware.h
//
//  Used to determine EXACT version of device software is running on.

#import <Foundation/Foundation.h>

@interface UIDeviceHardware : NSObject 

- (NSString *) platform;
- (NSString *) platformString;

@end

UIDeviceHardware.m 瀹炵幇鏂囦歡

//
//  UIDeviceHardware.m
//
//  Used to determine EXACT version of device software is running on.

#import "UIDeviceHardware.h"
#include <sys/types.h>
#include <sys/sysctl.h>

@implementation UIDeviceHardware

- (NSString *) platform{
    size_t size;
    sysctlbyname("hw.machine", NULL, &size, NULL, 0);
    char *machine = malloc(size);
    sysctlbyname("hw.machine", machine, &size, NULL, 0);
    NSString *platform = [NSString stringWithCString:machine];
    free(machine);
    return platform;
}

- (NSString *) platformString{
    NSString *platform = [self platform];
    if ([platform isEqualToString:@"iPhone1,1"]) return @"iPhone 1G";
    if ([platform isEqualToString:@"iPhone1,2"]) return @"iPhone 3G";
    if ([platform isEqualToString:@"iPhone2,1"]) return @"iPhone 3GS";
    if ([platform isEqualToString:@"iPhone3,1"]) return @"iPhone 4";
    if ([platform isEqualToString:@"iPod1,1"])   return @"iPod Touch 1G";
    if ([platform isEqualToString:@"iPod2,1"])   return @"iPod Touch 2G";
    if ([platform isEqualToString:@"iPod3,1"])   return @"iPod Touch 3G";
    if ([platform isEqualToString:@"i386"])   return @"iPhone Simulator";
    return platform;
}

@end



momor 2010-08-19 17:05 鍙戣〃璇勮
]]>iPhone OpenGL Speed Tip 鈥?Turn Off Thumb Instructionshttp://m.shnenglu.com/momor/archive/2010/04/13/112466.htmlmomormomorTue, 13 Apr 2010 09:01:00 GMThttp://m.shnenglu.com/momor/archive/2010/04/13/112466.htmlhttp://m.shnenglu.com/momor/comments/112466.htmlhttp://m.shnenglu.com/momor/archive/2010/04/13/112466.html#Feedback0http://m.shnenglu.com/momor/comments/commentRss/112466.htmlhttp://m.shnenglu.com/momor/services/trackbacks/112466.htmlWant to boost your iPhone OpenGL app’s framerate with one checkbox?  It’s easy; turn off Thumb instructions.

What are Thumb instructions?

The iPhone uses the ARM 1176JZ processor, and Thumb instructions are 16-bit versions of common 32-bit ARM instructions.  By default, your Xcode project will compile with Thumb instructions.

Why use Thumb instructions?

On embedded systems like the iPhone (or any system, really, but here especially), you have to think about the space your app uses.  Smaller instructions mean smaller code in memory and on disk.  That’s a good thing!  However, there’s a trade-off: performance.

According to Apple, the cost comes from floating-point operations.   Ripping out the GLfloats from your app isn’t the way to go, so let’s learn a better way.

How do I turn off Thumb instructions?

Here’s what to do in Xcode:

  1. Open your project
  2. Choose Project -> Edit Project Settings
  3. In the Project Info window, choose the Build tab
  4. In the search box, type “thumb
  5. You should see a “Compile for Thumb” setting.  Uncheck it. (Click image to enlarge.)

  6. Clean and rebuild your project.

That’s it!  If you don’t have the setting, make sure the Active SDK is set to Device.  The setting isn’t applicable to the Simulator.

What kind of frame rate boost will I see?

I had improvements of around 20, 30, and 50%.  Hopefully you will see even bigger ones!



momor 2010-04-13 17:01 鍙戣〃璇勮
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閲嶅姏鎰熷簲http://m.shnenglu.com/momor/archive/2009/05/13/82809.htmlmomormomorWed, 13 May 2009 06:10:00 GMThttp://m.shnenglu.com/momor/archive/2009/05/13/82809.htmlhttp://m.shnenglu.com/momor/comments/82809.htmlhttp://m.shnenglu.com/momor/archive/2009/05/13/82809.html#Feedback0http://m.shnenglu.com/momor/comments/commentRss/82809.htmlhttp://m.shnenglu.com/momor/services/trackbacks/82809.html

momor 2009-05-13 14:10 鍙戣〃璇勮
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緇堜簬涔板埌浜嗐奤nix緙栫▼鑹烘湳銆?/title><link>http://m.shnenglu.com/momor/archive/2009/04/08/79237.html</link><dc:creator>momor</dc:creator><author>momor</author><pubDate>Wed, 08 Apr 2009 01:48:00 GMT</pubDate><guid>http://m.shnenglu.com/momor/archive/2009/04/08/79237.html</guid><wfw:comment>http://m.shnenglu.com/momor/comments/79237.html</wfw:comment><comments>http://m.shnenglu.com/momor/archive/2009/04/08/79237.html#Feedback</comments><slash:comments>1</slash:comments><wfw:commentRss>http://m.shnenglu.com/momor/comments/commentRss/79237.html</wfw:commentRss><trackback:ping>http://m.shnenglu.com/momor/services/trackbacks/79237.html</trackback:ping><description><![CDATA[<a ><img alt="" src="http://m.shnenglu.com/images/cppblog_com/momor/s1631790.jpg" width="105" height="141"></a><br><br>綆浠嬶細<br><br>鏈功涓昏浠嬬粛浜哢nix緋葷粺棰嗗煙涓殑璁捐鍜屽紑鍙戝摬瀛︺佹濇兂鏂囧寲浣撶郴銆佸師鍒欎笌緇忛獙錛岀敱鍏鐨刄nix緙栫▼澶у笀銆佸紑婧愯繍鍔ㄩ琚栦漢鐗╀箣涓Eric S. Raymond鍊懼姏澶氬勾鍐欎綔鑰屾垚銆傚寘鎷琔nix璁捐鑰呭湪鍐呯殑澶氫綅棰嗗煙涓撳涔熶負鏈功璐$尞浜嗗疂璐電殑鍐呭銆傛湰涔﹀唴瀹規秹鍙婄ぞ緹ゆ枃鍖栥佽蔣浠跺紑鍙戣璁′笌瀹炵幇錛岃鐩栭潰 騫褲佸唴瀹規繁閭冿紝瀹屽叏灞曠幇浜嗕綔鑰呮瀬鍏舵繁鍘氱殑緇忛獙縐瘡鍜岄鍩熸櫤鎱с?br><br>鍙︽嵁錛歨ttp://www.huachu.com.cn/2005/2005unix.htm<br><br>浣滆呯畝浠嬶細<br><br>銆濮滃畯錛岃蔣浠跺伐紼嬪笀錛岀洰鍓嶄粠浜嬪崗鍚屽簲鐢ㄥ鉤鍙頒箣璁捐涓庡紑鍙戙傛妧鏈叴瓚e寘鎷琖indows 椹卞姩紼嬪簭寮鍙戯箲娉涘瀷緙栫▼銆傚拰渚嵎銆佽崳鑰鍏卞悓緲昏瘧浜嗐奀++ Templates 涓枃鐗堛嬨?br><br><br>-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------<br>  涓鐩撮兘鍚榪欐湰涔︼紝鍙槸娌℃湁鏈轟細璇昏繃錛屾嵁璇村獎鍝嶅姏涓嶅皬錛岀綉涓婂瀹冪殑璇勪環涔熸槸瑜掕船涓嶄竴錛屾湁浜烘姩鍑誨畠灝哢nix鏂囧寲瀹楁暀鍖栵紝涔熸湁浜哄笇鏈涜兘澶熷啿鐮翠笘淇楋紝浠庡凡緇忎嬌 鐢?0澶氬勾鐨勬搷浣滅郴緇熶笂紿ユ煡鎭掍箙鐨勮璁″摬瀛︺傚埌搴曟垜浠渶瑕佺殑鏄粈涔堬紝澶ф鍙湁璇昏繃榪欐湰涔︿互鍚庯紝鎵嶈兘澶熷幓璇勮堪銆傝繖涓笘鐣屽緢嫻簛錛屽崕涓界殑鍏呮枼鐫鎴戜滑錛岃糠澶辯殑涓? 瑗垮お澶氾紝甯屾湜鏇村鐨勬濊冭搴﹀拰鏂瑰紡銆?br><br><br><br> <img src ="http://m.shnenglu.com/momor/aggbug/79237.html" width = "1" height = "1" /><br><br><div align=right><a style="text-decoration:none;" href="http://m.shnenglu.com/momor/" target="_blank">momor</a> 2009-04-08 09:48 <a href="http://m.shnenglu.com/momor/archive/2009/04/08/79237.html#Feedback" target="_blank" style="text-decoration:none;">鍙戣〃璇勮</a></div>]]></description></item><item><title>C/C++ 鍐呭瓨綆$悊綆楁硶涓庡疄鐜?-絎竴绔狅細Intel濂旇吘CPU鏋勬灦--淇濇姢妯″紡 錛堢炕璇戣繛杞斤級http://m.shnenglu.com/momor/archive/2008/12/11/69130.htmlmomormomorThu, 11 Dec 2008 02:16:00 GMThttp://m.shnenglu.com/momor/archive/2008/12/11/69130.htmlhttp://m.shnenglu.com/momor/comments/69130.htmlhttp://m.shnenglu.com/momor/archive/2008/12/11/69130.html#Feedback0http://m.shnenglu.com/momor/comments/commentRss/69130.htmlhttp://m.shnenglu.com/momor/services/trackbacks/69130.html涓崍鍒?11涔伴キ錛屽彂鐜?11蹇鎵撹彍鐨勫憳宸ュ張灝嗗皯鎵撹彍鐨勭瓥鐣ュ崌綰т簡錛氣滃厛鎵撶礌鑿滐紙鍗充嬌涓嶅皬蹇冩墦澶氫簡涔熸瘮鑽よ彍澶氫簡鍒掔畻錛夛紝鐒跺悗灝嗙礌鑿滄姽騫籌紝鍐嶇礌鑿滅殑鍩虹涓婇晙涓婁竴灞傝崵鑿滐紝榪欐牱涓鏉ュ嵆浣胯崵鑿滄瘮姝e父鐨勯噺灝戯紝涔熶笉澶鏄撶湅鍑烘潵鈥濓紝
鎴戜笅嬈′篃鍗囩駭錛侊紒錛佽瘯璇曞厛瑕佽崵鑿?..  闃呰鍏ㄦ枃

momor 2008-12-11 10:16 鍙戣〃璇勮
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C/C++ 鍐呭瓨綆$悊綆楁硶涓庡疄鐜?-絎竴绔狅細Intel濂旇吘CPU鏋勬灦--瀹炴ā寮?錛堢炕璇戣繛杞斤級http://m.shnenglu.com/momor/archive/2008/12/06/68700.htmlmomormomorFri, 05 Dec 2008 16:07:00 GMThttp://m.shnenglu.com/momor/archive/2008/12/06/68700.htmlhttp://m.shnenglu.com/momor/comments/68700.htmlhttp://m.shnenglu.com/momor/archive/2008/12/06/68700.html#Feedback1http://m.shnenglu.com/momor/comments/commentRss/68700.htmlhttp://m.shnenglu.com/momor/services/trackbacks/68700.html涓嶈浜嗭紝緇х畫鎴戜滑鐨勫唴瀹筤^  闃呰鍏ㄦ枃

momor 2008-12-06 00:07 鍙戣〃璇勮
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C/C++ 鍐呭瓨綆$悊綆楁硶涓庡疄鐜?-絎竴绔狅細鍦板潃綰垮拰鎬葷嚎 錛堢炕璇戣繛杞斤級http://m.shnenglu.com/momor/archive/2008/11/29/68120.htmlmomormomorFri, 28 Nov 2008 17:25:00 GMThttp://m.shnenglu.com/momor/archive/2008/11/29/68120.htmlhttp://m.shnenglu.com/momor/comments/68120.htmlhttp://m.shnenglu.com/momor/archive/2008/11/29/68120.html#Feedback3http://m.shnenglu.com/momor/comments/commentRss/68120.htmlhttp://m.shnenglu.com/momor/services/trackbacks/68120.html闃呰鍏ㄦ枃

momor 2008-11-29 01:25 鍙戣〃璇勮
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C/C++ 鍐呭瓨綆$悊綆楁硶涓庡疄鐜?-絎竴绔狅細鍐呭瓨灞傛緇撴瀯 錛堢炕璇戣繛杞斤級http://m.shnenglu.com/momor/archive/2008/11/28/68080.htmlmomormomorFri, 28 Nov 2008 08:21:00 GMThttp://m.shnenglu.com/momor/archive/2008/11/28/68080.htmlhttp://m.shnenglu.com/momor/comments/68080.htmlhttp://m.shnenglu.com/momor/archive/2008/11/28/68080.html#Feedback0http://m.shnenglu.com/momor/comments/commentRss/68080.htmlhttp://m.shnenglu.com/momor/services/trackbacks/68080.html闃呰鍏ㄦ枃

momor 2008-11-28 16:21 鍙戣〃璇勮
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C/C++ 鍐呭瓨綆$悊綆楁硶涓庡疄鐜?-絎竴绔狅細鍐呭瓨綆$悊鏈哄埗 錛堢炕璇戣繛杞斤級http://m.shnenglu.com/momor/archive/2008/11/27/67984.htmlmomormomorThu, 27 Nov 2008 06:03:00 GMThttp://m.shnenglu.com/momor/archive/2008/11/27/67984.htmlhttp://m.shnenglu.com/momor/comments/67984.htmlhttp://m.shnenglu.com/momor/archive/2008/11/27/67984.html#Feedback1http://m.shnenglu.com/momor/comments/commentRss/67984.htmlhttp://m.shnenglu.com/momor/services/trackbacks/67984.html闃呰鍏ㄦ枃

momor 2008-11-27 14:03 鍙戣〃璇勮
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鍩烘湰璁錛氬茍琛岋紝騫跺彂錛屽拰鍒嗗竷http://m.shnenglu.com/momor/archive/2008/11/13/66868.htmlmomormomorThu, 13 Nov 2008 15:50:00 GMThttp://m.shnenglu.com/momor/archive/2008/11/13/66868.htmlhttp://m.shnenglu.com/momor/comments/66868.htmlhttp://m.shnenglu.com/momor/archive/2008/11/13/66868.html#Feedback3http://m.shnenglu.com/momor/comments/commentRss/66868.htmlhttp://m.shnenglu.com/momor/services/trackbacks/66868.html瀹冧滑榪戜技鐩擱氱殑鍦版柟鏄紝閮芥槸鎻忚堪璁$畻鏈虹‖浠跺拰杞歡緇勬垚鐨勭郴緇熶綋緋葷粨鏋勶紝浠ヨ揪鍒板悓涓鏃墮棿澶勭悊澶氶」浠誨姟鐨勭洰鐨勩備笉鍚岀殑鍒欐槸瀹冧滑鐨勫疄鐜版柟娉曞強鍏跺師鍥犮?

  闃呰鍏ㄦ枃

momor 2008-11-13 23:50 鍙戣〃璇勮
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青青草原综合久久大伊人导航_色综合久久天天综合_日日噜噜夜夜狠狠久久丁香五月_热久久这里只有精品
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