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标题: 传递ByteArray参数到C++里 [打印本页]

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作者: 破晓    时间: 2015-3-11 09:24
标题: 传递ByteArray参数到C++里

1. void _init_c(void) __attribute((used,
   
2.     annotate("as3sig:public function init(byteData:ByteArray) : void"),
   
3.     annotate("as3import:flash.utils.ByteArray")));
   
4. 
   
5. void _init_c()
   
6. {
   
7.     char *byteArray_c;
   
8.     unsigned int len;
   
9. 
   
10.     inline_as3("%0 = byteData.bytesAvailable;" : "=r"(len));
    
11.     byteArray_c = (char *)malloc(len);
    
12. 
    
13.     inline_as3("CModule.ram.position = %0;" : : "r"(byteArray_c));
    
14.     inline_as3("byteData.readBytes(CModule.ram);");
    
15. 
    
16.     // Now byteArray_c points to a copy of the data from byteData.
    
17.     // Note that byteData.position has changed to the end of the stream.
    
18. 
    
19.     // ... do stuff ...
    
20. 
    
21.     free(byteArray_c);
    
22. }

复制代码

The key here is that the heap in C is exposed on the AS3 side as CModule.ram, which is a ByteArrayobject.

A pointer malloc'd in C is seen in AS3 as an offset into CModule.ram.

可以参考例子中的    /06_SWIG/ PassingData/ PassData.as

相关链接：

http://stackoverflow.com/questio ... c-code-using-flascc

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