小编Phi*_*ter的帖子

我尝试用JNA在C中调用短**.

C看起来像这样:

void compute(short** in, int row, int col) {
    for (int i = 0; i < row; i++) {
        for (int j = 0; j < col; j++) {
            printf("in[%d][%d] = %d\n", i,j, in[i][j]);
        }
    }
}

• 从JNA传递短[] []不起作用.

• JNA文档说"要映射本机多维数组,使用一维Java数组",但它不起作用.打电话的时候

  'nativeLib.compute(new short [] {1,2,3,4},2,2); 我得到:java.lang.Error:com.sun.jna.Native.invokeVoid(本机方法)的内存访问无效

• 似乎需要一个PointerByReference,我试图用PointerByReference填充PointerByReference,它包含短值,但它不起作用:

  Pointer pointerOfArray = new Memory(row * col * Native.getNativeSize(Short.TYPE));
  for(int i=0;i<row;i++) {
  
      Pointer pointer = new Memory(col * Native.getNativeSize(Short.TYPE));
      for(int j=0;j<col;j++) {
          pointer.setShort(j*Native.getNativeSize(Short.TYPE), in[i][j]);
      }
      pointerOfArray.setPointer(i*row*Native.getNativeSize(Short.TYPE), pointer);
  }
  

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• 我也尝试过:

      Pointer pointer = new …

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