merged ocl module from ocl branch (it's not quite usable yet; at least on Mac)

modules/ocl/src/binarycaching.hpp

@@ -0,0 +1,102 @@
+/*M///////////////////////////////////////////////////////////////////////////////////////
+//
+//  IMPORTANT: READ BEFORE DOWNLOADING, COPYING, INSTALLING OR USING.
+//
+//  By downloading, copying, installing or using the software you agree to this license.
+//  If you do not agree to this license, do not download, install,
+//  copy or use the software.
+//
+//
+//                           License Agreement
+//                For Open Source Computer Vision Library
+//
+// Copyright (C) 2010-2012, Institute Of Software Chinese Academy Of Science, all rights reserved.
+// Copyright (C) 2010-2012, Advanced Micro Devices, Inc., all rights reserved.
+// Third party copyrights are property of their respective owners.
+//
+// @Authors
+//
+// Redistribution and use in source and binary forms, with or without modification,
+// are permitted provided that the following conditions are met:
+//
+//   * Redistribution's of source code must retain the above copyright notice,
+//     this list of conditions and the following disclaimer.
+//
+//   * Redistribution's in binary form must reproduce the above copyright notice,
+//     this list of conditions and the following disclaimer in the documentation
+//     and/or other oclMaterials provided with the distribution.
+//
+//   * The name of the copyright holders may not be used to endorse or promote products
+//     derived from this software without specific prior written permission.
+//
+// This software is provided by the copyright holders and contributors "as is" and
+// any express or implied warranties, including, but not limited to, the implied
+// warranties of merchantability and fitness for a particular purpose are disclaimed.
+// In no event shall the Intel Corporation or contributors be liable for any direct,
+// indirect, incidental, special, exemplary, or consequential damages
+// (including, but not limited to, procurement of substitute goods or services;
+// loss of use, data, or profits; or business interruption) however caused
+// and on any theory of liability, whether in contract, strict liability,
+// or tort (including negligence or otherwise) arising in any way out of
+// the use of this software, even if advised of the possibility of such damage.
+//
+//M*/
+
+#include "precomp.hpp"
+
+using namespace cv;
+using namespace cv::ocl;
+using namespace std;
+using std::cout;
+using std::endl;
+
+#if !defined (HAVE_OPENCL)
+namespace cv
+{
+    namespace ocl
+    {
+        //nothing
+    }//namespace ocl
+}//namespace cv
+
+#else /* !defined (HAVE_OPENCL) */
+
+namespace cv
+{
+    namespace ocl
+    {
+        class ProgramCache
+        {
+        protected:
+            ProgramCache();
+            friend class auto_ptr<ProgramCache>;
+            static auto_ptr<ProgramCache> programCache;
+
+        public:
+            ~ProgramCache();
+            static ProgramCache *getProgramCache()
+            {
+                if( NULL == programCache.get())
+                    programCache.reset(new ProgramCache());
+                return programCache.get();
+            }
+
+            //lookup the binary given the file name
+            cl_program progLookup(string srcsign);
+
+            //add program to the cache
+            void addProgram(string srcsign, cl_program program);
+            void releaseProgram();
+
+            map <string, cl_program> codeCache;
+            unsigned int cacheSize;
+            //The presumed watermark for the cache volume (256MB). Is it enough?
+            //We may need more delicate algorithms when necessary later.
+            //Right now, let's just leave it along.
+            static const unsigned MAX_PROG_CACHE_SIZE = 1024;
+        };
+
+    }//namespace ocl
+
+}//namespace cv
+#endif