1HEADmaster

1 files changed, 79 insertions, 0 deletions

diff --git a/utils/nvtristriplib/vertexcache.h b/utils/nvtristriplib/vertexcache.h
new file mode 100644
index 0000000..3b06665
--- /dev/null
+++ b/utils/nvtristriplib/vertexcache.h
@@ -0,0 +1,79 @@
+  
+#ifndef VERTEX_CACHE_H
+
+#define VERTEX_CACHE_H
+
+class VertexCache
+{
+	
+public:
+	
+	VertexCache(int size)
+	{
+		numEntries = size;
+		
+		entries = new int[numEntries];
+		
+		for(int i = 0; i < numEntries; i++)
+			entries[i] = -1;
+	}
+		
+	VertexCache() { VertexCache(16); }
+	~VertexCache() { delete[] entries; entries = 0; }
+	
+	bool InCache(int entry)
+	{
+		bool returnVal = false;
+		for(int i = 0; i < numEntries; i++)
+		{
+			if(entries[i] == entry)
+			{
+				returnVal = true;
+				break;
+			}
+		}
+		
+		return returnVal;
+	}
+	
+	int AddEntry(int entry)
+	{
+		int removed;
+		
+		removed = entries[numEntries - 1];
+		
+		//push everything right one
+		for(int i = numEntries - 2; i >= 0; i--)
+		{
+			entries[i + 1] = entries[i];
+		}
+		
+		entries[0] = entry;
+		
+		return removed;
+	}
+
+	void Clear()
+	{
+		memset(entries, -1, sizeof(int) * numEntries);
+	}
+	
+	void Copy(VertexCache* inVcache) 
+	{
+		for(int i = 0; i < numEntries; i++)
+		{
+			inVcache->Set(i, entries[i]);
+		}
+	}
+
+	int At(int index) { return entries[index]; }
+	void Set(int index, int value) { entries[index] = value; }
+
+private:
+
+  int *entries;
+  int numEntries;
+
+};
+
+#endif