1 files changed, 155 insertions, 0 deletions
diff --git a/sci_gateway/cpp/opencv_scharr.cpp b/sci_gateway/cpp/opencv_scharr.cpp
new file mode 100644
index 0000000..cb897d0
--- /dev/null
+++ b/sci_gateway/cpp/opencv_scharr.cpp
@@ -0,0 +1,155 @@
+/********************************************************
+    Author: Sukul Bagai
+*********************************************************
+   return_image = scharr(input_image, ddepth, dx, dy, scale, delta);
+********************************************************/
+
+#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"
+  
+  int opencv_scharr(char *fname, unsigned long fname_len)
+  {
+
+    SciErr sciErr;
+    int intErr = 0;
+    int iRows=0,iCols=0;
+    int *piLen = NULL;
+    int *piAddr2  = NULL;
+    int *piAddr3  = NULL;
+    int *piAddr4  = NULL;
+    int *piAddr5  = NULL;
+    int *piAddr6 = NULL;
+    int *piAddr7 = NULL;
+    char **ddepth = NULL;
+    int i,j,k;
+    double dx,dy,scale,delta;
+
+
+    //checking input argument
+    CheckInputArgument(pvApiCtx, 6, 6);
+    CheckOutputArgument(pvApiCtx, 1, 1) ;
+
+    Mat image;
+    retrieveImage(image,1);
+
+    //for ddepth
+    sciErr = getVarAddressFromPosition(pvApiCtx, 2, &piAddr2);
+    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, piAddr2, &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, piAddr2, &iRows, &iCols, piLen, NULL);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+    ddepth = (char**)malloc(sizeof(char*) * iRows * iCols);
+    for(i = 0 ; i < iRows * iCols ; i++)
+        ddepth[i] = (char*)malloc(sizeof(char) * (piLen[i] + 1));//+ 1 for null termination
+    //third call to retrieve data
+    sciErr = getMatrixOfString(pvApiCtx, piAddr2, &iRows, &iCols, piLen, ddepth);
+    if(sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+
+    //for value of dx
+    sciErr = getVarAddressFromPosition(pvApiCtx,3,&piAddr3);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr3, &dx);
+    if(intErr)
+        return intErr;
+
+    //for value of dy
+    sciErr = getVarAddressFromPosition(pvApiCtx,4,&piAddr4);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr4, &dy);
+    if(intErr)
+        return intErr;
+
+    //for value of scale
+    sciErr = getVarAddressFromPosition(pvApiCtx,5,&piAddr5);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr5, &scale);
+    if(intErr)
+        return intErr;
+
+    //for value of delta
+    sciErr = getVarAddressFromPosition(pvApiCtx,6,&piAddr6);
+    if (sciErr.iErr)
+    {
+        printError(&sciErr, 0);
+        return 0;
+    }
+    intErr = getScalarDouble(pvApiCtx, piAddr6, &delta);
+    if(intErr)
+        return intErr;
+
+    Mat new_image(image.rows,image.cols,image.type());
+
+    if(strcmp(ddepth[0],"CV_8U")==0)
+        Scharr(image,new_image,CV_8U,dx,dy,scale,delta);
+    else if(strcmp(ddepth[0],"CV_16U")==0)
+        Scharr(image,new_image,CV_16U,dx,dy,scale,delta);
+    else if(strcmp(ddepth[0],"CV_16S")==0)
+        Scharr(image,new_image,CV_16S,dx,dy,scale,delta);
+    else if(strcmp(ddepth[0],"CV_32F")==0)
+        Scharr(image,new_image,CV_32F,dx,dy,scale,delta);
+    else if(strcmp(ddepth[0],"CV_64F")==0)
+        Scharr(image,new_image,CV_64F,dx,dy,scale,delta);
+
+    string tempstring = type2str(new_image.type());
+    char *checker;
+    checker = (char *)malloc(tempstring.size() + 1);
+    memcpy(checker, tempstring.c_str(), tempstring.size() + 1);
+    returnImage(checker,new_image,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;
+
+  }
+/* ==================================================================== */
+}