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, 46 insertions, 0 deletions

diff --git a/SD-VBS/benchmarks/multi_ncut/src/c/segment.h b/SD-VBS/benchmarks/multi_ncut/src/c/segment.h
new file mode 100644
index 0000000..73ed8de
--- /dev/null
+++ b/SD-VBS/benchmarks/multi_ncut/src/c/segment.h
@@ -0,0 +1,46 @@
+/********************************
+Author: Sravanthi Kota Venkata
+********************************/
+
+#ifndef SEGMENT
+#define SEGMENT
+
+#include "sdvbs_common.h"
+
+typedef struct
+{
+  float w;
+  int a, b;
+} edge;
+
+typedef struct 
+{
+  int rank;
+  int p;
+  int size;
+} uni_elt;
+
+typedef struct
+{
+    uni_elt *elts;
+    int num;
+}universe;
+
+/* use imRef to access image data. */
+#define imRef(im, x, y) (im->data[y*im->width+x])
+
+I2D *segment_image(I2D *im, float sigma, float c, int min_size, int *num_ccs, 
+                   int* segments, edge* edges,
+                   F2D* imageOut, F2D* tempOut, I2D* kernel, F2D* edgeWeights, F2D* in, I2D* ind,
+                   universe* u,
+                   I2D* output);
+universe *segment_graph(int num_vertices, int num_edges, edge *edges, float c, F2D* edgeWeights, F2D* in, I2D* ind,
+                        universe* u);
+void join(universe* u, int x, int y);
+int find(universe* u, int x);
+float diff(F2D *r, int x1, int y1, int x2, int y2);
+
+
+#endif
+
+