1 files changed, 37 insertions, 0 deletions
diff --git a/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.h b/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.h
new file mode 100644
index 0000000000..a9a2e61b9e
--- /dev/null
+++ b/thirdparty/bullet/Bullet3OpenCL/ParallelPrimitives/b3PrefixScanCL.h
@@ -0,0 +1,37 @@
+
+#ifndef B3_PREFIX_SCAN_CL_H
+#define B3_PREFIX_SCAN_CL_H
+
+#include "b3OpenCLArray.h"
+#include "b3BufferInfoCL.h"
+#include "Bullet3Common/b3AlignedObjectArray.h"
+
+class b3PrefixScanCL
+{
+	enum
+	{
+		BLOCK_SIZE = 128
+	};
+
+//	Option m_option;
+
+	cl_command_queue	m_commandQueue;
+
+	cl_kernel m_localScanKernel;
+	cl_kernel m_blockSumKernel;
+	cl_kernel m_propagationKernel;
+
+	b3OpenCLArray<unsigned int>* m_workBuffer;
+
+
+	public:
+		
+	b3PrefixScanCL(cl_context ctx, cl_device_id device, cl_command_queue queue,int size=0);
+
+	virtual ~b3PrefixScanCL();
+
+	void execute(b3OpenCLArray<unsigned int>& src, b3OpenCLArray<unsigned int>& dst, int n, unsigned int* sum = 0);
+	void executeHost(b3AlignedObjectArray<unsigned int>& src, b3AlignedObjectArray<unsigned int>& dst, int n, unsigned int* sum=0);
+};
+
+#endif //B3_PREFIX_SCAN_CL_H