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.

1 files changed, 33 insertions, 0 deletions

diff --git a/SD-VBS/common/toolbox/lagrcv/calcSubsampleAvgMex.cc b/SD-VBS/common/toolbox/lagrcv/calcSubsampleAvgMex.cc
new file mode 100755
index 0000000..1eba6d9
--- /dev/null
+++ b/SD-VBS/common/toolbox/lagrcv/calcSubsampleAvgMex.cc
@@ -0,0 +1,33 @@
+
+/* 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: [dxPye dyPyr] = 
+  //   calcGradientPyrMex(imagePyr)
+
+  double *image, *retImg; 
+  int newSizeY, newSizeX;
+  const int *imdims;
+
+  image=(double*)mxGetPr(prhs[0]);
+  imdims = mxGetDimensions(prhs[0]);
+
+  newSizeY=imdims[0]/2;
+  newSizeX=imdims[1]/2;
+  plhs[0] = mxCreateNumericMatrix(newSizeY, newSizeX, mxDOUBLE_CLASS, mxREAL);
+  retImg=(double*)mxGetPr(plhs[0]);
+
+  calcSubSampleAvg(image, imdims[0], imdims[1], retImg, newSizeY, newSizeX);
+}