How to auto generate wrapper for MatLab coder generated file?

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Murali Kannan Thiraviam
评论： Royi Avital 2019-9-14
I am looking for help in using the MatLab generated DLL into my application directly. I have created a simple function in MatLab:
function [RetVal] = CalculateSum(SingleDimArray)
RetVal = sum(SingleDimArray);
end
Then I used a MatLab coder to generate a C/C++ DLL, which generates binary with following syntax:
double CalculateSum(const emxArray_real_T * SingleDimArray);
My application is having different requirement for using a DLL so I have created another DLL to wrap the DLL generated from MatLab coder like:
extern "C" __declspec(dllexport) void MyCalculateSum(VARIANT* Input, double* RetVal)
{
//Fetch Input array
SAFEARRAY *pInputArray = *(Input->pparray);
long arraySize = pInputArray->rgsabound[0].cElements;
double *pData = (double *) pInputArray->pvData;
//Create Input Args - Wrapper for MatLab generated code
emxArray_real_T *MLInputArray = emxCreateWrapper_real_T(pData, 1, MySize);
//Call MatLab functions
*RetVal = CalculateSum(MLInputArray);
//Release the struct
emxFree_real_T(&MLInputArray);
}
Currently I am doing this manually. Is there any way to generate this wrapper code through MatLab coder itself? If so then I can use the binary generated by MatLab coder directly in my application. I explored the possibility of including the “Custom C Code for Generated Files” but the content that I need to feed is static. I would like to know is there any way to generate the wrapper code for all the functions which is compiled from MatLab coder. I am trying to explore the “Code Replacement Library” option but didn’t get good example. Please throw some light on this area.

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回答（1 个）

Sally Al Khamees
Sally Al Khamees 2017-7-13
I do not think that there is a way to do this. You will probably have to do it manually.
See if the following link helps
http://www.mathworks.com/help/coder/ug/replace-code-generated-from-matlab-code.html
it has some information on code replacement.
  1 个评论
Royi Avital
Royi Avital 2019-9-14
It was really nice if there was an option to generate a code which an its entry point use regular types of C.
Namely regular pointers of C to arrays instead of the types defined by MATLAB.
To the leats you could add an auxiliray function which its input is a regular array of C and a vector of its dimensions and a scalar of the number of dimensions and its ouptut is the types of Coder.
At the moment coder yield a code which isn't fun to integrate to other projects.

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