Matlab 2013a 和 VS2010 混合编程

最近由于项目需求，某项目的算法是基于MATLAB完成的，在短时间内需要去调用算法功能。因此，基于MATLAB生成DLL, C 调用的方式完成。

环境：MATLAB 2013a + VS2010 + win8.1 + 64位系统

一、MATLAB 编译环境设置

1. 安装，MATLAB安装时选择 force 32bit, 这样生成的dll在32位和64位的机器上都可以调用。

2. 装好MATLAB 2013后，打开软件，进行配置

 >> mex -setup
 Welcome to mex -setup. This utility will help you set up
 a default compiler. For a list of supported compilers, see
 http://www.mathworks.com/support/compilers/R2013a/win32.html
 Please choose your compiler for building MEX-files:
 Would you like mex to locate installed compilers [y]/n?y
 Select a compiler:
 [] Lcc-win32 C 2.4. in D:\PROGRA~\MATLAB\R2013a\sys\lcc
 [] Microsoft Visual C++  in D:\Program Files (x86)\Microsoft Visual Studio 10.0 

 [] None 

 Compiler: 

 Please verify your choices: 

 Compiler: Microsoft Visual C++
 Location: D:\Program Files (x86)\Microsoft Visual Studio 10.0 

 Are these correct [y]/n? y

 ***************************************************************************
 Warning: MEX-files generated using Microsoft Visual C++  require
 that Microsoft Visual Studio  run-time libraries be
 available on the computer they are run on.
 If you plan to redistribute your MEX-files to other MATLAB
 users, be sure that they have the run-time libraries.
 *************************************************************************** 

 Trying to update options file: C:\Users\robin\AppData\Roaming\MathWorks\MATLAB\R2013a\mexopts.bat
 From template: D:\PROGRA~\MATLAB\R2013a\bin\win32\mexopts\msvc100opts.bat 

 Done . . . 

显示 Done 后执行下一步

 >> mbuild -setup

 Welcome to mbuild -setup.  This utility will help you set up
 a default compiler.  For a list of supported compilers, see
 http://www.mathworks.com/support/compilers/R2013a/win32.html 

 Please choose your compiler for building shared libraries or COM components: 

 Would you like mbuild to locate installed compilers [y]/n? y

 Select a compiler:
 [] Microsoft Visual C++  in D:\Program Files (x86)\Microsoft Visual Studio 10.0 

 [] None 

 Compiler: 

 Please verify your choices: 

 Compiler: Microsoft Visual C++
 Location: D:\Program Files (x86)\Microsoft Visual Studio 10.0 

 Are these correct [y]/n? y

 ****************************************************************************
   Warning: Applications/components generated using Microsoft Visual C++
             require that the Microsoft Visual Studio  run-time
            libraries be available on the computer used for deployment.
            To redistribute your applications/components, be sure that the
            deployment machine has these run-time libraries.
 **************************************************************************** 

 Trying to update options file: C:\Users\robin\AppData\Roaming\MathWorks\MATLAB\R2013a\compopts.bat
 From template:              D:\PROGRA~\MATLAB\R2013a\bin\win32\mbuildopts\msvc100compp.bat 

 Done . . . 

这样，MATLAB的Mex编译环境就配置好了。

二、MATLAB 代码编译dll

打开MATLAB源代码，找到最顶层的m文件，注意顶层必须为function方式。

例如，MATLAB的顶层函数为

文件 ship_track1.m

 function finish_flag = ship_track1(input_x,input_y,num_ori)

为某目标检测算法，input_x ,input_y,和num_ori为输入的3个参数

那么编译的指令为

 >> mcc -W cpplib:libship_track1 -T link:lib ship_track1.m -C

配置完成后会在MATLAB工程目录生成7个文件

 libship_track1.cpp
 libship_track1.ctf
 libship_track1.dll
 libship_track1.exp
 libship_track1.exports
 libship_track1.h
 libship_track1.lib

当然我们需要用到的只有4个

 libship_track1.ctf
 libship_track1.dll
 libship_track1.h
 libship_track1.lib

三、VS2010 MFC 工程配置

1. 新建VS2010 MFC 工程

2. 将第二步MATLAB编译生成的4个文件拷贝入MFC工程目录下

将头文件 libship_track1.h 添加进工程

3. 项目属性设置

1）选择项目->项目属性->所有配置

C/C++ -> 常规->附加包含目录，找到MATLAB下的include目录

 D:\Program Files (x86)\MATLAB\R2013a\extern\include

（根据MATLAB的安装路径确定）

2）链接器->常规->附加库目录

 D:\Program Files (x86)\MATLAB\R2013a\extern\lib\win32\microsoft

3) 链接器->输入->附加依赖项

 libship_track1.lib
 libship_track2.lib
 mclmcrrt.lib
 libmx.lib
 libmat.lib
 mclmcr.lib

到此就配置完成。

四、MFC 调用DLL

1. 初始化

 if(!libship_track1Initialize())    //初始化1通道
 {
       //MessageBox(_T("could not initialize the application"));
 }

2. 传递参数

 double _Data1_1[] = {};                //输入数组
 double _Data1_2[] = {};
 for(int i=; i< chn1_num; i++)
 {
     _Data1_1[i] = Chan1_x[i];
     _Data1_2[i] = Chan1_y[i];
 }

 mxArray* Data1_1 = mxCreateDoubleMatrix(, ,mxREAL);     //创建1*5矩阵
 memcpy(mxGetPr(Data1_1), (void*)_Data1_1,sizeof(_Data1_1));           //拷贝输入数据
 mxArray* Data1_2 = mxCreateDoubleMatrix(, ,mxREAL);     //创建1*5矩阵
 memcpy(mxGetPr(Data1_2), (void*)_Data1_2,sizeof(_Data1_2));           //拷贝输入数据
 double _Data1_3[];
 _Data1_3[] = chn1_num;
 mxArray* Data1_3 = mxCreateDoubleMatrix(, ,mxREAL);     //创建1*1矩阵;
 memcpy(mxGetPr(Data1_3), (void*)_Data1_3,sizeof(_Data1_3));           //拷贝输入数据
 mxArray *input1[] = {Data1_1,Data1_2,Data1_3};                               //将矩阵x的指针作为输入参数传递进去
 //mxArray *output[1];                        //定义输出参数指针
 mlxShip_track1(,NULL, , input1);

mxArray是Matlab C 函数库的结构体，需要利用它来进行参数传递。

对于mlxShip_track1函数来说，其四个参数分别对应：

mlxShip_track1（输出参数个数、输出参数、输入参数个数、输入参数）