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, 52 insertions, 0 deletions

diff --git a/SD-VBS/common/c/ffConv2_dY.c b/SD-VBS/common/c/ffConv2_dY.c
new file mode 100644
index 0000000..e480eaa
--- /dev/null
+++ b/SD-VBS/common/c/ffConv2_dY.c
@@ -0,0 +1,52 @@
+/********************************
+Author: Sravanthi Kota Venkata
+********************************/
+
+#include "sdvbs_common.h"
+
+F2D* ffConv2_dY(F2D* a, F2D* b)
+{
+    F2D *c, *out;
+    int ma, na, mb, nb, ci, cj, i, j, m, n;
+    int r_index, c_index;
+
+    ma = a->height;
+    na = a->width;
+
+    mb = b->height;
+    nb = b->width;
+    
+    r_index = ceil((mb + 1.0)/2.0);
+    c_index = ceil((nb + 1.0)/2.0);
+
+    ci = ma+mb-1;
+    cj = na+nb-1;
+
+    c = fSetArray(ci, cj, 0);
+    
+    for(i=0; i<cj; i++)
+    {
+        for(j=0; j<ci; j++)
+        {
+            for(m=0; m<na; m++)
+            {
+                for(n=0; n<ma; n++)
+                {
+                    if( (i-m)>=0 && (j-n)>=0 && (i-m)<nb && (j-n)<mb )
+                        subsref(c,j,i) += subsref(a,n,m) * subsref(b,j-n,i-m);
+                }
+            }
+        }
+    }
+
+    out = fMallocHandle(ma, na);
+    for(i=0; i<ma; i++)
+    {
+        for(j=0; j<na; j++)
+        {
+            subsref(out,i,j) = subsref(c,(i+r_index-1),(j+c_index-1));
+        }
+    }
+
+    return out;
+}