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/c/fResortIndices.c | 77 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 SD-VBS/common/c/fResortIndices.c

(limited to 'SD-VBS/common/c/fResortIndices.c')

diff --git a/SD-VBS/common/c/fResortIndices.c b/SD-VBS/common/c/fResortIndices.c
new file mode 100644
index 0000000..d4d1cda
--- /dev/null
+++ b/SD-VBS/common/c/fResortIndices.c
@@ -0,0 +1,77 @@
+/********************************
+Author: Sravanthi Kota Venkata
+********************************/
+
+#include "sdvbs_common.h"
+
+I2D* fResortIndices(F2D* input, int dim, F2D* in, I2D* ind)
+{
+    int rows, cols;
+    //F2D *in;
+    int i, j, k;
+    //I2D *ind;
+
+    rows = input->height;
+    cols = input->width;
+
+    in = fCopy(input, in);
+    //ind = iMallocHandle(rows,cols);
+
+    for(i=0; i<cols; i++) {
+        for(j=0; j<rows; j++) {
+            subsref(ind,j,i) = 0;
+		}
+	}
+
+if(dim == 1)
+{
+    for(k=0; k<rows; k++)
+    {
+        for(i=0; i<cols; i++)
+        {
+            float localMax = subsref(in,k,i);
+            int localIndex = i;
+            subsref(ind,k,i) = i;
+            for(j=0; j<cols; j++)
+            {
+                if(localMax < subsref(in,k,j))
+                {
+                    subsref(ind,k,i) = j;
+                    localMax = subsref(in,k,j);
+                    localIndex = j;
+                }
+            }
+            subsref(in,k,localIndex) = 0;
+        }
+    }
+    
+    //fFreeHandle(in);
+    return ind;
+}
+
+    for(k=0; k<cols; k++)
+    {
+        for(i=0; i<rows; i++)
+        {
+            float localMax = subsref(in,i,k);
+            int localIndex = i;
+            subsref(ind,i,k) = i;
+            for(j=0; j<rows; j++)
+            {
+                if(localMax < subsref(in,j,k))
+                {
+                    subsref(ind,i,k) = j;
+                    localMax = subsref(in,j,k);
+                    localIndex = j;
+                }
+            }
+            subsref(in,localIndex,k) = 0;
+        }
+    }
+
+    //fFreeHandle(in);
+    return ind;
+}
+
+
+
-- 
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