1 files changed, 99 insertions, 0 deletions
diff --git a/sci_gateway/cpp/opencv_imread.cpp b/sci_gateway/cpp/opencv_imread.cpp
new file mode 100644
index 0000000..6e7e7b9
--- /dev/null
+++ b/sci_gateway/cpp/opencv_imread.cpp
@@ -0,0 +1,99 @@
+/***************************************************
+Author : Sukul Bagai
+***************************************************/
+
+#include <numeric>
+#include "opencv2/core/core.hpp"
+#include "opencv2/highgui/highgui.hpp"
+#include "opencv2/opencv.hpp"
+#include <iostream>
+using namespace cv;
+using namespace std;
+extern "C"
+{
+    #include "api_scilab.h"
+    #include "Scierror.h"
+    #include "BOOL.h"
+    #include <localization.h>
+    #include "sciprint.h"
+    #include "../common.h"
+    #include "../common.cpp"
+
+int opencv_imread(char *fname, unsigned long fname_len)
+{
+    SciErr sciErr;
+    int iLen        = 0;
+    //variable info
+    int iRows       = 0;
+    int iCols       = 0;
+    int piRows      = 0;
+    int piCols      = 0;  
+    int *piAddr = NULL;      
+    int *piLen      = NULL;
+    char **pstData  = NULL;
+    int **pstData1  = NULL;
+    int i,j,k=0;
+
+
+    //Checking number of input and output arguments (enviromnet variable, min arguments, max arguments)
+    CheckInputArgument(pvApiCtx, 1, 1);
+    CheckOutputArgument(pvApiCtx, 1, 1) ;
+    
+    // get Address of inputs
+    sciErr = getVarAddressFromPosition(pvApiCtx, 1, &piAddr);
+
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+
+    //Now, we will retrieve the string from the input parameter. For this, we will require 3 calls
+    //first call to retrieve dimensions
+    sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, NULL, NULL);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    piLen = (int*)malloc(sizeof(int) * iRows * iCols);
+    //second call to retrieve length of each string
+    sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, NULL);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+    pstData = (char**)malloc(sizeof(char*) * iRows * iCols);
+    for(i = 0 ; i < iRows * iCols ; i++)
+    {
+        pstData[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
+    }
+    //third call to retrieve data
+    sciErr = getMatrixOfString(pvApiCtx, piAddr, &iRows, &iCols, piLen, pstData);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    
+    //creating image matrix, by getting the image at the specified path
+    Mat img = imread(pstData[0],CV_LOAD_IMAGE_COLOR);
+
+    string tempstring = type2str(img.type());
+    char *checker;
+    checker = (char *)malloc(tempstring.size() + 1);
+    memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
+    returnImage(checker,img,1);
+    free(checker);
+
+    //Assigning the list as the Output Variable
+    AssignOutputVariable(pvApiCtx, 1) = nbInputArgument(pvApiCtx) + 1;
+    //Returning the Output Variables as arguments to the Scilab environment
+    ReturnArguments(pvApiCtx); 
+    return 0;
+}
+/* ==================================================================== */
+}