COCOS2DX using Iconv transcoding (win32,ios,android)

First put the environment: Win7, NDK r8e, libiconv-1.14, Cygwin

One WIN32 environment configuration

The cocos2d-x comes with a iconv library on the Win32 and can be used with just a few configurations.

1 Introducing Header Files

Properties, configuration Properties->c/c++-> additional Include Directories:

$ (ProjectDir): \.. \.. \.. \cocos2dx\platform\third_party\win32\iconv

2 Introducing a static library: Libiconv.lib

Additional dependencies, input, connector, configuration properties, properties

Libiconv.lib

3 Defining a common transcoding function

#include "Iconv.h"BOOL Iconv_convert (void *src, unsignedint Src_len,Char *src_charset,void *dest, unsignedint Dest_len,Char *dest_charset) { Constchar *In char *Out,*dest_ptr;size_t in_left,out_left,mutant,converted;In_left=src_len;Out_left=dest_len; In= (char *) src; Out=dest_ptr= (char *) dest;iconv_t Oconv=iconv_open (Dest_charset,src_charset); if (oconv== (iconv_t) (-1)){ Cclog ("Error:unable to open Libiconv.");  ReturnFalse}Mutant = Iconv (Oconv, &In , &in_left, & Out, &out_left); Iconv_close (OCONV);  if (mutant = = (size_t) (-1)) { cclog ("error:unable to convert anything.");   return false; } converted = Dest_len-out_left; Cclog ("to convert%u characters,%u mutanted,%u converted \ n", src_len,mutant,converted); dest_ptr[conve rted]=' + ';  return true;}                 

4 Testing

void Converttest () {  "Hello, this is a test program";   Char outstr[1024x768];" UTF-8 "); Cclog ("SCR string:%s\n", inStr);  Cclog ("DST string:%s\n", outstr);}        

Output Result:

To convert characters, 0 mutanted, converted

SCR String:hello,????????????

5 cross-Platform header file contains settings

Win32 the header file contains a path and a dependent library, as shown above, before it can include "iconv.h";

Bring your own libiconv.dylib on iOS, just include <iconv.h>.

Android needs to be compiled separately, next we will say;

#If Cc_target_platform = = Cc_platform_win32#include "iconv.h"#elif cc_target_platform = = Cc_platform_ IOS#include <iconv.h>#elif cc_target_platform = = cc_platform_android#include "icov/iconv.h" #endif         

Two for Android compiler Iconv

Android cannot directly use the Iconv library provided by cocos2d-x and needs to download a iconv library that has been compiled in a Linux environment.

1 Downloads

Download libiconv-1.14.tar.gz package from official website, rename to Libiconv, unzip.

Official website: http://www.fsf.org/resources/

2 compiling

Open Cygwin, go to libiconv root directory, execute:

. /configure--build=x86_64-pc-linux-gnu--host=arm-linux-eabi

Remember that this is not a./configure, otherwise there will be a lot of stdio.h in the back of the wrong.

Then execute:

Make

If you've done this before, you need to do it first:

Make clean

Then execute make

3 Copy header File

Copy the Icov folder under Cocos2dx\platform\third_party\win32 to the root directory of the project, as Class

4 Configuration 4.1 copy Libiconv to Project

Place the Libiconv in the cocos2d-x-2.1.4 root directory

4.2 Compiling the configuration

Create a new Android.mk file under the Libiconv directory with the following contents:

Local_path:=$ (call My-dir)Include$(Clear_vars)Local_module: = Iconv_staticLocal_module_filename: = LibiconvLocal_cflags:= -Wno-multichar-dandroid-dlibdir= "C"- dbuilding_libiconv-din_librarylocal_src_ FILES := libcharset/lib/localcharset.c lib/iconv.c lib/relocatable.c Local_c_includes + = $ (local_path)/include span class= "variable" >$ (local_path)/libcharset $ ( local_path)/lib $ (local_path)/libcharset/< span class= "keyword" >include $ (local_path)/srclib include $ (build_static_library)   

4.3 Modifying the Android.mka of a project add a search path

We'll copy the Iconv. Added header files in the search path

Local_c_includes + = $ (local_path)/. /.. /classes/iconv

b Add iconv_static

Local_whole_static_libraries + = Iconv_static

Iconv_static is the value of Local_module in Android.mk in Iconv

C contains iconv sub-modules

Import the android.mk that we defined in Iconv

$ (call Import-module,libiconv)

Three common errors 1 langinfo.h:no such file or directory

To modify a macro definition in a libiconv/libcharset/config.h file:

#define HAVE_LANGINFO_CODESET 1

For

#define HAVE_LANGINFO_CODESET 0

Another: Remember to remember not to use Baidu, pit dead, search not to want, do programmers, or think of ways to use Google it.

2 ' C ' undeclared

Modify the function get_charset_aliases (void) in file/libcharset/lib/localcharset.c,

search int C; Put to the beginning of the function body.

Appendix:

Other blog references

http://blog.csdn.net/smileyuping/article/details/9635365

http://xwrwc.blog.163.com/blog/static/4632000320138151017187/

http://blog.csdn.net/alex_my/article/details/10567541

http://blog.csdn.net/victoryckl/article/details/7089823

COCOS2DX using Iconv transcoding (win32,ios,android)