From d17b33131c14864bd1eae275f49a3f148e21cf29 Mon Sep 17 00:00:00 2001
From: Leo Chan <leochanj@live.unc.edu>
Date: Thu, 22 Oct 2020 01:53:21 -0400
Subject: Squashed commit of the sb-vbs branch.

Includes the SD-VBS benchmarks modified to:
- Use libextra to loop as realtime jobs
- Preallocate memory before starting their main computation
- Accept input via stdin instead of via argc

Does not include the SD-VBS matlab code.

Fixes libextra execution in LITMUS^RT.
---
 SD-VBS/common/toolbox/lagrcv/dummyMex.cc | 58 ++++++++++++++++++++++++++++++++
 1 file changed, 58 insertions(+)
 create mode 100755 SD-VBS/common/toolbox/lagrcv/dummyMex.cc

(limited to 'SD-VBS/common/toolbox/lagrcv/dummyMex.cc')

diff --git a/SD-VBS/common/toolbox/lagrcv/dummyMex.cc b/SD-VBS/common/toolbox/lagrcv/dummyMex.cc
new file mode 100755
index 0000000..0799182
--- /dev/null
+++ b/SD-VBS/common/toolbox/lagrcv/dummyMex.cc
@@ -0,0 +1,58 @@
+
+/* compile with 
+rm liblagrcv.a
+gcc -c lagrcv.cpp
+ar rc liblagrcv.a lagrcv.o
+ranlib liblagrcv.a
+mex7 calcTextureMex.cc -L/home/ikkjin/LagrMatlab/opencv/matlab -llagrcv -I/home/ikkjin/LagrMatlab/opencv/matlab/
+*/
+
+#include "mex.h"
+#include "lagrcv.h"
+#include <stdio.h>
+#include <math.h>
+
+// TODO: add number of corners parameter
+void mexFunction(int nlhs, mxArray *plhs[], int nrhs, const mxArray *prhs[]) {
+  // usage: [newFeaturePnt validFlag ] = 
+  //   calcOptFlowPyrLKMex(Ipyr, IdxPyr, IdyPyr, Jpyr, featurePnt, winSize, c_level, c_det, c_xx, c_xy, c_yy)
+  // Ipyr, IdxPyr, IdyPyr, Jpyr: levelx1 size cell.
+  // featurePnt 2xn int
+  // winSize c_level int
+  // c_xx c_xy c_yy: image size double*
+  // image must be single-channel, 8-bit
+
+  
+  double* fPntDouble;
+  const int *nFeatures;
+  char* valid;
+  int *fPnt, *newFPnt; 
+
+  fPntDouble=(double*)mxGetPr(prhs[0]);
+  nFeatures=mxGetDimensions(prhs[0]);
+  fPnt=(int*)malloc(sizeof(int)*nFeatures[0]*nFeatures[1]);
+
+  printf("nFeatures %d, %d", nFeatures[0], nFeatures[1]);
+  //plhs[0] = mxCreateNumericMatrix(nFeatures[0], nFeatures[1], mxINT32_CLASS, mxREAL);
+  plhs[0] = mxCreateNumericArray(2,nFeatures,mxINT32_CLASS, mxREAL);
+  //plhs[1] = mxCreateNumericMatrix(1, nFeatures[1], mxINT32_CLASS, mxREAL);
+  plhs[1] = mxCreateNumericArray(1,nFeatures+1,mxUINT8_CLASS, mxREAL);
+
+  newFPnt = (int*)mxGetPr(plhs[0]);
+  valid = (char*)mxGetPr(plhs[1]);
+
+  //idx convert from matlab to c
+  for(int i=0; i<nFeatures[1]; i++){
+	fPnt[i*2]=(int)fPntDouble[i*2]-1;
+	fPnt[i*2+1]=(int)fPntDouble[i*2+1]-1;
+	valid[i]=1;
+  }
+  
+  //printf("v %d %d %d", valid[0], valid[1], valid[2]);
+
+  //idx convert from matlab to c
+  for(int i=0; i<nFeatures[1]*2; i++){
+  	newFPnt[i]=fPnt[i]+1;
+  }
+  free(fPnt);
+}
-- 
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